diff options
Diffstat (limited to 'recipes/linux/linux-rp-2.6.24/htcuni-acx.patch')
| -rw-r--r-- | recipes/linux/linux-rp-2.6.24/htcuni-acx.patch | 33527 |
1 files changed, 33527 insertions, 0 deletions
diff --git a/recipes/linux/linux-rp-2.6.24/htcuni-acx.patch b/recipes/linux/linux-rp-2.6.24/htcuni-acx.patch new file mode 100644 index 0000000000..1ccebddc8d --- /dev/null +++ b/recipes/linux/linux-rp-2.6.24/htcuni-acx.patch @@ -0,0 +1,33527 @@ +--- + drivers/net/wireless/Kconfig | 31 + drivers/net/wireless/Makefile | 2 + drivers/net/wireless/acx/Kconfig | 113 + drivers/net/wireless/acx/Makefile | 21 + drivers/net/wireless/acx/acx.h | 14 + drivers/net/wireless/acx/acx_config.h | 50 + drivers/net/wireless/acx/acx_func.h | 710 ++ + drivers/net/wireless/acx/acx_hw.h | 18 + drivers/net/wireless/acx/acx_struct.h | 2114 ++++++++ + drivers/net/wireless/acx/common.c | 7388 ++++++++++++++++++++++++++++ + drivers/net/wireless/acx/conv.c | 504 + + drivers/net/wireless/acx/cs.c | 5703 +++++++++++++++++++++ + drivers/net/wireless/acx/htcsable_acx.c | 118 + drivers/net/wireless/acx/htcuniversal_acx.c | 108 + drivers/net/wireless/acx/hx4700_acx.c | 108 + drivers/net/wireless/acx/ioctl.c | 2748 ++++++++++ + drivers/net/wireless/acx/mem.c | 5363 ++++++++++++++++++++ + drivers/net/wireless/acx/pci.c | 4234 ++++++++++++++++ + drivers/net/wireless/acx/rx3000_acx.c | 110 + drivers/net/wireless/acx/setrate.c | 213 + drivers/net/wireless/acx/usb.c | 1922 +++++++ + drivers/net/wireless/acx/wlan.c | 424 + + drivers/net/wireless/acx/wlan_compat.h | 260 + drivers/net/wireless/acx/wlan_hdr.h | 497 + + drivers/net/wireless/acx/wlan_mgmt.h | 582 ++ + 25 files changed, 33355 insertions(+) + +Index: linux-2.6.23/drivers/net/wireless/acx/acx_config.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/acx_config.h 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,50 @@ ++#define ACX_RELEASE "v0.3.36" ++ ++/* ++ * Test out all the channels in reg domain 0x10 ++ */ ++#define ACX_ALLOW_ALLCHANNELS ++ ++/* set to 0 if you don't want any debugging code to be compiled in */ ++/* set to 1 if you want some debugging */ ++/* set to 2 if you want extensive debug log */ ++#define ACX_DEBUG 0 ++ ++/* ++ * Since we'll be changing channels a lot ++#define ACX_DEFAULT_MSG (L_ASSOC|L_INIT) ++*/ ++#define ACX_DEFAULT_MSG (L_ASSOC|L_INIT) ++ ++/* assume 32bit I/O width ++ * (16bit is also compatible with Compact Flash) */ ++#define ACX_IO_WIDTH 32 ++ ++/* Set this to 1 if you want monitor mode to use ++ * phy header. Currently it is not useful anyway since we ++ * don't know what useful info (if any) is in phy header. ++ * If you want faster/smaller code, say 0 here */ ++#define WANT_PHY_HDR 0 ++ ++/* whether to do Tx descriptor cleanup in softirq (i.e. not in IRQ ++ * handler) or not. Note that doing it later does slightly increase ++ * system load, so still do that stuff in the IRQ handler for now, ++ * even if that probably means worse latency */ ++#define TX_CLEANUP_IN_SOFTIRQ 0 ++ ++/* if you want very experimental 802.11 power save mode features */ ++#define POWER_SAVE_80211 0 ++ ++/* if you want very early packet fragmentation bits and pieces */ ++#define ACX_FRAGMENTATION 0 ++ ++/* Locking: */ ++/* very talkative */ ++/* #define PARANOID_LOCKING 1 */ ++/* normal (use when bug-free) */ ++#define DO_LOCKING 1 ++/* else locking is disabled! */ ++ ++/* 0 - normal mode */ ++/* 1 - development/debug: probe for IEs on modprobe */ ++#define CMD_DISCOVERY 0 +Index: linux-2.6.23/drivers/net/wireless/acx/acx_func.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/acx_func.h 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,710 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++ ++/*********************************************************************** ++** LOGGING ++** ++** - Avoid SHOUTING needlessly. Avoid excessive verbosity. ++** Gradually remove messages which are old debugging aids. ++** ++** - Use printk() for messages which are to be always logged. ++** Supply either 'acx:' or '<devname>:' prefix so that user ++** can figure out who's speaking among other kernel chatter. ++** acx: is for general issues (e.g. "acx: no firmware image!") ++** while <devname>: is related to a particular device ++** (think about multi-card setup). Double check that message ++** is not confusing to the average user. ++** ++** - use printk KERN_xxx level only if message is not a WARNING ++** but is INFO, ERR etc. ++** ++** - Use printk_ratelimited() for messages which may flood ++** (e.g. "rx DUP pkt!"). ++** ++** - Use log() for messages which may be omitted (and they ++** _will_ be omitted in non-debug builds). Note that ++** message levels may be disabled at compile-time selectively, ++** thus select them wisely. Example: L_DEBUG is the lowest ++** (most likely to be compiled out) -> use for less important stuff. ++** ++** - Do not print important stuff with log(), or else people ++** will never build non-debug driver. ++** ++** Style: ++** hex: capital letters, zero filled (e.g. 0x02AC) ++** str: dont start from capitals, no trailing periods ("tx: queue is stopped") ++*/ ++#if ACX_DEBUG > 1 ++ ++void log_fn_enter(const char *funcname); ++void log_fn_exit(const char *funcname); ++void log_fn_exit_v(const char *funcname, int v); ++ ++#define FN_ENTER \ ++ do { \ ++ if (unlikely(acx_debug & L_FUNC)) { \ ++ log_fn_enter(__func__); \ ++ } \ ++ } while (0) ++ ++#define FN_EXIT1(v) \ ++ do { \ ++ if (unlikely(acx_debug & L_FUNC)) { \ ++ log_fn_exit_v(__func__, v); \ ++ } \ ++ } while (0) ++#define FN_EXIT0 \ ++ do { \ ++ if (unlikely(acx_debug & L_FUNC)) { \ ++ log_fn_exit(__func__); \ ++ } \ ++ } while (0) ++ ++#else ++ ++#define FN_ENTER ++#define FN_EXIT1(v) ++#define FN_EXIT0 ++ ++#endif /* ACX_DEBUG > 1 */ ++ ++ ++#if ACX_DEBUG ++ ++#define log(chan, args...) \ ++ do { \ ++ if (acx_debug & (chan)) \ ++ printk(KERN_DEBUG args); \ ++ } while (0) ++#define printk_ratelimited(args...) printk(args) ++ ++#else /* Non-debug build: */ ++ ++#define log(chan, args...) ++/* Standard way of log flood prevention */ ++#define printk_ratelimited(args...) \ ++do { \ ++ if (printk_ratelimit()) \ ++ printk(args); \ ++} while (0) ++ ++#endif /* ACX_DEBUG */ ++ ++void acx_print_mac(const char *head, const u8 *mac, const char *tail); ++ ++/* Optimized out to nothing in non-debug build */ ++static inline void ++acxlog_mac(int level, const char *head, const u8 *mac, const char *tail) ++{ ++ if (acx_debug & level) { ++ acx_print_mac(head, mac, tail); ++ } ++} ++ ++ ++/*********************************************************************** ++** MAC address helpers ++*/ ++static inline void ++MAC_COPY(u8 *mac, const u8 *src) ++{ ++ *(u32*)mac = *(u32*)src; ++ ((u16*)mac)[2] = ((u16*)src)[2]; ++ /* kernel's memcpy will do the same: memcpy(dst, src, ETH_ALEN); */ ++} ++ ++static inline void ++MAC_FILL(u8 *mac, u8 val) ++{ ++ memset(mac, val, ETH_ALEN); ++} ++ ++static inline void ++MAC_BCAST(u8 *mac) ++{ ++ ((u16*)mac)[2] = *(u32*)mac = -1; ++} ++ ++static inline void ++MAC_ZERO(u8 *mac) ++{ ++ ((u16*)mac)[2] = *(u32*)mac = 0; ++} ++ ++static inline int ++mac_is_equal(const u8 *a, const u8 *b) ++{ ++ /* can't beat this */ ++ return memcmp(a, b, ETH_ALEN) == 0; ++} ++ ++static inline int ++mac_is_bcast(const u8 *mac) ++{ ++ /* AND together 4 first bytes with sign-extended 2 last bytes ++ ** Only bcast address gives 0xffffffff. +1 gives 0 */ ++ return ( *(s32*)mac & ((s16*)mac)[2] ) + 1 == 0; ++} ++ ++static inline int ++mac_is_zero(const u8 *mac) ++{ ++ return ( *(u32*)mac | ((u16*)mac)[2] ) == 0; ++} ++ ++static inline int ++mac_is_directed(const u8 *mac) ++{ ++ return (mac[0] & 1)==0; ++} ++ ++static inline int ++mac_is_mcast(const u8 *mac) ++{ ++ return (mac[0] & 1) && !mac_is_bcast(mac); ++} ++ ++#define MACSTR "%02X:%02X:%02X:%02X:%02X:%02X" ++#define MAC(bytevector) \ ++ ((unsigned char *)bytevector)[0], \ ++ ((unsigned char *)bytevector)[1], \ ++ ((unsigned char *)bytevector)[2], \ ++ ((unsigned char *)bytevector)[3], \ ++ ((unsigned char *)bytevector)[4], \ ++ ((unsigned char *)bytevector)[5] ++ ++ ++/*********************************************************************** ++** Random helpers ++*/ ++#define TO_STRING(x) #x ++#define STRING(x) TO_STRING(x) ++ ++#define CLEAR_BIT(val, mask) ((val) &= ~(mask)) ++#define SET_BIT(val, mask) ((val) |= (mask)) ++ ++/* undefined if v==0 */ ++static inline unsigned int ++lowest_bit(u16 v) ++{ ++ unsigned int n = 0; ++ while (!(v & 0xf)) { v>>=4; n+=4; } ++ while (!(v & 1)) { v>>=1; n++; } ++ return n; ++} ++ ++/* undefined if v==0 */ ++static inline unsigned int ++highest_bit(u16 v) ++{ ++ unsigned int n = 0; ++ while (v>0xf) { v>>=4; n+=4; } ++ while (v>1) { v>>=1; n++; } ++ return n; ++} ++ ++/* undefined if v==0 */ ++static inline int ++has_only_one_bit(u16 v) ++{ ++ return ((v-1) ^ v) >= v; ++} ++ ++ ++static inline int ++is_hidden_essid(char *essid) ++{ ++ return (('\0' == essid[0]) || ++ ((' ' == essid[0]) && ('\0' == essid[1]))); ++} ++ ++/*********************************************************************** ++** LOCKING ++** We have adev->sem and adev->lock. ++** ++** We employ following naming convention in order to get locking right: ++** ++** acx_e_xxxx - external entry points called from process context. ++** It is okay to sleep. adev->sem is to be taken on entry. ++** acx_i_xxxx - external entry points possibly called from atomic context. ++** Sleeping is not allowed (and thus down(sem) is not legal!) ++** acx_s_xxxx - potentially sleeping functions. Do not ever call under lock! ++** acx_l_xxxx - functions which expect lock to be already taken. ++** rest - non-sleeping functions which do not require locking ++** but may be run under lock ++** ++** A small number of local helpers do not have acx_[eisl]_ prefix. ++** They are always close to caller and are to be reviewed locally. ++** ++** Theory of operation: ++** ++** All process-context entry points (_e_ functions) take sem ++** immediately. IRQ handler and other 'atomic-context' entry points ++** (_i_ functions) take lock immediately on entry, but dont take sem ++** because that might sleep. ++** ++** Thus *all* code is either protected by sem or lock, or both. ++** ++** Code which must not run concurrently with IRQ takes lock. ++** Such code is marked with _l_. ++** ++** This results in the following rules of thumb useful in code review: ++** ++** + If a function calls _s_ fn, it must be an _s_ itself. ++** + You can call _l_ fn only (a) from another _l_ fn ++** or (b) from _s_, _e_ or _i_ fn by taking lock, calling _l_, ++** and dropping lock. ++** + All IRQ code runs under lock. ++** + Any _s_ fn is running under sem. ++** + Code under sem can race only with IRQ code. ++** + Code under sem+lock cannot race with anything. ++*/ ++ ++/* These functions *must* be inline or they will break horribly on SPARC, due ++ * to its weird semantics for save/restore flags */ ++ ++#if defined(PARANOID_LOCKING) /* Lock debugging */ ++ ++void acx_lock_debug(acx_device_t *adev, const char* where); ++void acx_unlock_debug(acx_device_t *adev, const char* where); ++void acx_down_debug(acx_device_t *adev, const char* where); ++void acx_up_debug(acx_device_t *adev, const char* where); ++void acx_lock_unhold(void); ++void acx_sem_unhold(void); ++ ++static inline void ++acx_lock_helper(acx_device_t *adev, unsigned long *fp, const char* where) ++{ ++ acx_lock_debug(adev, where); ++ spin_lock_irqsave(&adev->lock, *fp); ++} ++static inline void ++acx_unlock_helper(acx_device_t *adev, unsigned long *fp, const char* where) ++{ ++ acx_unlock_debug(adev, where); ++ spin_unlock_irqrestore(&adev->lock, *fp); ++} ++static inline void ++acx_down_helper(acx_device_t *adev, const char* where) ++{ ++ acx_down_debug(adev, where); ++} ++static inline void ++acx_up_helper(acx_device_t *adev, const char* where) ++{ ++ acx_up_debug(adev, where); ++} ++#define acx_lock(adev, flags) acx_lock_helper(adev, &(flags), __FILE__ ":" STRING(__LINE__)) ++#define acx_unlock(adev, flags) acx_unlock_helper(adev, &(flags), __FILE__ ":" STRING(__LINE__)) ++#define acx_sem_lock(adev) acx_down_helper(adev, __FILE__ ":" STRING(__LINE__)) ++#define acx_sem_unlock(adev) acx_up_helper(adev, __FILE__ ":" STRING(__LINE__)) ++ ++#elif defined(DO_LOCKING) ++ ++#define acx_lock(adev, flags) spin_lock_irqsave(&adev->lock, flags) ++#define acx_unlock(adev, flags) spin_unlock_irqrestore(&adev->lock, flags) ++#define acx_sem_lock(adev) down(&adev->sem) ++#define acx_sem_unlock(adev) up(&adev->sem) ++#define acx_lock_unhold() ((void)0) ++#define acx_sem_unhold() ((void)0) ++ ++#else /* no locking! :( */ ++ ++#define acx_lock(adev, flags) ((void)0) ++#define acx_unlock(adev, flags) ((void)0) ++#define acx_sem_lock(adev) ((void)0) ++#define acx_sem_unlock(adev) ((void)0) ++#define acx_lock_unhold() ((void)0) ++#define acx_sem_unhold() ((void)0) ++ ++#endif ++ ++ ++/*********************************************************************** ++*/ ++ ++/* Can race with rx path (which is not protected by sem): ++** rx -> process_[re]assocresp() -> set_status(ASSOCIATED) -> wake_queue() ++** Can race with tx_complete IRQ: ++** IRQ -> acxpci_l_clean_txdesc -> acx_wake_queue ++** Review carefully all callsites */ ++static inline void ++acx_stop_queue(struct net_device *ndev, const char *msg) ++{ ++ if (netif_queue_stopped(ndev)) ++ return; ++ ++ netif_stop_queue(ndev); ++ if (msg) ++ log(L_BUFT, "tx: stop queue %s\n", msg); ++} ++ ++static inline int ++acx_queue_stopped(struct net_device *ndev) ++{ ++ return netif_queue_stopped(ndev); ++} ++ ++/* ++static inline void ++acx_start_queue(struct net_device *ndev, const char *msg) ++{ ++ netif_start_queue(ndev); ++ if (msg) ++ log(L_BUFT, "tx: start queue %s\n", msg); ++} ++*/ ++ ++static inline void ++acx_wake_queue(struct net_device *ndev, const char *msg) ++{ ++ netif_wake_queue(ndev); ++ if (msg) ++ log(L_BUFT, "tx: wake queue %s\n", msg); ++} ++ ++static inline void ++acx_carrier_off(struct net_device *ndev, const char *msg) ++{ ++ netif_carrier_off(ndev); ++ if (msg) ++ log(L_BUFT, "tx: carrier off %s\n", msg); ++} ++ ++static inline void ++acx_carrier_on(struct net_device *ndev, const char *msg) ++{ ++ netif_carrier_on(ndev); ++ if (msg) ++ log(L_BUFT, "tx: carrier on %s\n", msg); ++} ++ ++/* This function does not need locking UNLESS you call it ++** as acx_set_status(ACX_STATUS_4_ASSOCIATED), bacause this can ++** wake queue. This can race with stop_queue elsewhere. */ ++void acx_set_status(acx_device_t *adev, u16 status); ++ ++ ++/*********************************************************************** ++** Communication with firmware ++*/ ++#define CMD_TIMEOUT_MS(n) (n) ++#define ACX_CMD_TIMEOUT_DEFAULT CMD_TIMEOUT_MS(50) ++ ++#if ACX_DEBUG ++ ++/* We want to log cmd names */ ++int acxpci_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr); ++int acxmem_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr); ++int acxusb_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr); ++static inline int ++acx_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr) ++{ ++ if (IS_MEM(adev)) ++ return acxmem_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr); ++ if (IS_PCI(adev)) ++ return acxpci_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr); ++ return acxusb_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr); ++} ++#define acx_s_issue_cmd(adev,cmd,param,len) \ ++ acx_s_issue_cmd_timeo_debug(adev,cmd,param,len,ACX_CMD_TIMEOUT_DEFAULT,#cmd) ++#define acx_s_issue_cmd_timeo(adev,cmd,param,len,timeo) \ ++ acx_s_issue_cmd_timeo_debug(adev,cmd,param,len,timeo,#cmd) ++int acx_s_configure_debug(acx_device_t *adev, void *pdr, int type, const char* str); ++#define acx_s_configure(adev,pdr,type) \ ++ acx_s_configure_debug(adev,pdr,type,#type) ++int acx_s_interrogate_debug(acx_device_t *adev, void *pdr, int type, const char* str); ++#define acx_s_interrogate(adev,pdr,type) \ ++ acx_s_interrogate_debug(adev,pdr,type,#type) ++ ++#else ++ ++int acxpci_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout); ++int acxmem_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout); ++int acxusb_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout); ++static inline int ++acx_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout) ++{ ++ if (IS_MEM(adev)) ++ return acxmem_s_issue_cmd_timeo(adev, cmd, param, len, timeout); ++ if (IS_PCI(adev)) ++ return acxpci_s_issue_cmd_timeo(adev, cmd, param, len, timeout); ++ return acxusb_s_issue_cmd_timeo(adev, cmd, param, len, timeout); ++} ++static inline int ++acx_s_issue_cmd(acx_device_t *adev, unsigned cmd, void *param, unsigned len) ++{ ++ if (IS_MEM(adev)) ++ return acxmem_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT); ++ if (IS_PCI(adev)) ++ return acxpci_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT); ++ return acxusb_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT); ++} ++int acx_s_configure(acx_device_t *adev, void *pdr, int type); ++int acx_s_interrogate(acx_device_t *adev, void *pdr, int type); ++ ++#endif ++ ++void acx_s_cmd_start_scan(acx_device_t *adev); ++ ++ ++/*********************************************************************** ++** Ioctls ++*/ ++int ++acx111pci_ioctl_info( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra); ++int ++acx100pci_ioctl_set_phy_amp_bias( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra); ++int ++acx100mem_ioctl_set_phy_amp_bias( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra); ++ ++ ++/*********************************************************************** ++** /proc ++*/ ++#ifdef CONFIG_PROC_FS ++int acx_proc_register_entries(const struct net_device *ndev); ++int acx_proc_unregister_entries(const struct net_device *ndev); ++#else ++static inline int ++acx_proc_register_entries(const struct net_device *ndev) { return OK; } ++static inline int ++acx_proc_unregister_entries(const struct net_device *ndev) { return OK; } ++#endif ++ ++ ++/*********************************************************************** ++*/ ++firmware_image_t *acx_s_read_fw(struct device *dev, const char *file, u32 *size); ++int acxpci_s_upload_radio(acx_device_t *adev); ++int acxmem_s_upload_radio(acx_device_t *adev); ++ ++ ++/*********************************************************************** ++** Unsorted yet :) ++*/ ++int acxpci_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf); ++int acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf); ++int acxusb_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf); ++static inline int ++acx_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf) ++{ ++ if (IS_MEM(adev)) ++ return acxmem_s_read_phy_reg(adev, reg, charbuf); ++ if (IS_PCI(adev)) ++ return acxpci_s_read_phy_reg(adev, reg, charbuf); ++ return acxusb_s_read_phy_reg(adev, reg, charbuf); ++} ++ ++int acxpci_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value); ++int acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value); ++int acxusb_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value); ++static inline int ++acx_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value) ++{ ++ if (IS_MEM(adev)) ++ return acxmem_s_write_phy_reg(adev, reg, value); ++ if (IS_PCI(adev)) ++ return acxpci_s_write_phy_reg(adev, reg, value); ++ return acxusb_s_write_phy_reg(adev, reg, value); ++} ++ ++tx_t* acxpci_l_alloc_tx(acx_device_t *adev); ++tx_t* acxmem_l_alloc_tx(acx_device_t *adev); ++tx_t* acxusb_l_alloc_tx(acx_device_t *adev); ++static inline tx_t* ++acx_l_alloc_tx(acx_device_t *adev) ++{ ++ if (IS_MEM(adev)) ++ return acxmem_l_alloc_tx(adev); ++ if (IS_PCI(adev)) ++ return acxpci_l_alloc_tx(adev); ++ return acxusb_l_alloc_tx(adev); ++} ++ ++void acxusb_l_dealloc_tx(tx_t *tx_opaque); ++void acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque); ++static inline void ++acx_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque) ++{ ++#ifdef ACX_MEM ++ acxmem_l_dealloc_tx (adev, tx_opaque); ++#else ++ if (IS_USB(adev)) ++ acxusb_l_dealloc_tx(tx_opaque); ++#endif ++} ++ ++void* acxpci_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque); ++void* acxmem_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque); ++void* acxusb_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque); ++static inline void* ++acx_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque) ++{ ++#if defined (ACX_MEM) ++ return acxmem_l_get_txbuf(adev, tx_opaque); ++#else ++ if (IS_PCI(adev)) ++ return acxpci_l_get_txbuf(adev, tx_opaque); ++ return acxusb_l_get_txbuf(adev, tx_opaque); ++#endif ++} ++ ++void acxpci_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len); ++void acxmem_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len); ++void acxusb_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len); ++static inline void ++acx_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len) ++{ ++#if defined (ACX_MEM) ++ acxmem_l_tx_data(adev, tx_opaque, len); ++#else ++ if (IS_PCI(adev)) ++ acxpci_l_tx_data(adev, tx_opaque, len); ++ else ++ acxusb_l_tx_data(adev, tx_opaque, len); ++#endif ++} ++ ++static inline wlan_hdr_t* ++acx_get_wlan_hdr(acx_device_t *adev, const rxbuffer_t *rxbuf) ++{ ++ return (wlan_hdr_t*)((u8*)&rxbuf->hdr_a3 + adev->phy_header_len); ++} ++ ++void acxpci_l_power_led(acx_device_t *adev, int enable); ++int acxpci_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf); ++unsigned int acxpci_l_clean_txdesc(acx_device_t *adev); ++void acxpci_l_clean_txdesc_emergency(acx_device_t *adev); ++int acxpci_s_create_hostdesc_queues(acx_device_t *adev); ++void acxpci_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start); ++void acxpci_free_desc_queues(acx_device_t *adev); ++char* acxpci_s_proc_diag_output(char *p, acx_device_t *adev); ++int acxpci_proc_eeprom_output(char *p, acx_device_t *adev); ++void acxpci_set_interrupt_mask(acx_device_t *adev); ++int acx100pci_s_set_tx_level(acx_device_t *adev, u8 level_dbm); ++ ++void acxmem_l_power_led(acx_device_t *adev, int enable); ++int acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf); ++unsigned int acxmem_l_clean_txdesc(acx_device_t *adev); ++void acxmem_l_clean_txdesc_emergency(acx_device_t *adev); ++int acxmem_s_create_hostdesc_queues(acx_device_t *adev); ++void acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start); ++void acxmem_free_desc_queues(acx_device_t *adev); ++char* acxmem_s_proc_diag_output(char *p, acx_device_t *adev); ++int acxmem_proc_eeprom_output(char *p, acx_device_t *adev); ++void acxmem_set_interrupt_mask(acx_device_t *adev); ++int acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm); ++ ++void acx_s_msleep(int ms); ++int acx_s_init_mac(acx_device_t *adev); ++void acx_set_reg_domain(acx_device_t *adev, unsigned char reg_dom_id); ++void acx_set_timer(acx_device_t *adev, int timeout_us); ++void acx_update_capabilities(acx_device_t *adev); ++void acx_s_start(acx_device_t *adev); ++ ++void acx_s_update_card_settings(acx_device_t *adev); ++void acx_s_parse_configoption(acx_device_t *adev, const acx111_ie_configoption_t *pcfg); ++void acx_l_update_ratevector(acx_device_t *adev); ++ ++void acx_init_task_scheduler(acx_device_t *adev); ++void acx_schedule_task(acx_device_t *adev, unsigned int set_flag); ++ ++int acx_e_ioctl_old(struct net_device *ndev, struct ifreq *ifr, int cmd); ++ ++client_t *acx_l_sta_list_get(acx_device_t *adev, const u8 *address); ++void acx_l_sta_list_del(acx_device_t *adev, client_t *clt); ++ ++int acx_l_transmit_disassoc(acx_device_t *adev, client_t *clt); ++void acx_i_timer(unsigned long a); ++int acx_s_complete_scan(acx_device_t *adev); ++ ++struct sk_buff *acx_rxbuf_to_ether(acx_device_t *adev, rxbuffer_t *rxbuf); ++int acx_ether_to_txbuf(acx_device_t *adev, void *txbuf, const struct sk_buff *skb); ++ ++u8 acx_signal_determine_quality(u8 signal, u8 noise); ++ ++void acx_l_process_rxbuf(acx_device_t *adev, rxbuffer_t *rxbuf); ++void acx_l_handle_txrate_auto(acx_device_t *adev, struct client *txc, ++ u16 intended_rate, u8 rate100, u16 rate111, u8 error, ++ int pkts_to_ignore); ++ ++void acx_dump_bytes(const void *, int); ++void acx_log_bad_eid(wlan_hdr_t* hdr, int len, wlan_ie_t* ie_ptr); ++ ++u8 acx_rate111to100(u16); ++ ++void acx_s_set_defaults(acx_device_t *adev); ++ ++#if !ACX_DEBUG ++static inline const char* acx_get_packet_type_string(u16 fc) { return ""; } ++#else ++const char* acx_get_packet_type_string(u16 fc); ++#endif ++const char* acx_cmd_status_str(unsigned int state); ++ ++int acx_i_start_xmit(struct sk_buff *skb, struct net_device *ndev); ++ ++void great_inquisitor(acx_device_t *adev); ++ ++void acx_s_get_firmware_version(acx_device_t *adev); ++void acx_display_hardware_details(acx_device_t *adev); ++ ++int acx_e_change_mtu(struct net_device *ndev, int mtu); ++struct net_device_stats* acx_e_get_stats(struct net_device *ndev); ++struct iw_statistics* acx_e_get_wireless_stats(struct net_device *ndev); ++ ++#ifdef ACX_MEM ++int __init acxmem_e_init_module(void); ++void __exit acxmem_e_cleanup_module(void); ++void acxmem_e_release(struct device *dev); ++#else ++int __init acxpci_e_init_module(void); ++int __init acxusb_e_init_module(void); ++void __exit acxpci_e_cleanup_module(void); ++void __exit acxusb_e_cleanup_module(void); ++#endif ++int __init acx_cs_init(void); ++void __exit acx_cs_cleanup(void); +Index: linux-2.6.23/drivers/net/wireless/acx/acx.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/acx.h 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,14 @@ ++#if defined(CONFIG_ACX_MEM) && !defined(ACX_MEM) ++#define ACX_MEM ++#endif ++ ++#if defined(CONFIG_ACX_CS) && !defined(ACX_MEM) ++#define ACX_MEM ++#endif ++ ++#include "acx_config.h" ++#include "wlan_compat.h" ++#include "wlan_hdr.h" ++#include "wlan_mgmt.h" ++#include "acx_struct.h" ++#include "acx_func.h" +Index: linux-2.6.23/drivers/net/wireless/acx/acx_hw.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/acx_hw.h 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,18 @@ ++/* ++ * Interface for ACX slave memory driver ++ * ++ * Copyright (c) 2006 SDG Systems, LLC ++ * ++ * GPL ++ * ++ */ ++ ++#ifndef _ACX_HW_H ++#define _ACX_HW_H ++ ++struct acx_hardware_data { ++ int (*start_hw)( void ); ++ int (*stop_hw)( void ); ++}; ++ ++#endif /* _ACX_HW_H */ +Index: linux-2.6.23/drivers/net/wireless/acx/acx_struct.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/acx_struct.h 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,2114 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++/*********************************************************************** ++** Forward declarations of types ++*/ ++typedef struct tx tx_t; ++typedef struct acx_device acx_device_t; ++typedef struct client client_t; ++typedef struct rxdesc rxdesc_t; ++typedef struct txdesc txdesc_t; ++typedef struct rxhostdesc rxhostdesc_t; ++typedef struct txhostdesc txhostdesc_t; ++ ++ ++/*********************************************************************** ++** Debug / log functionality ++*/ ++enum { ++ L_LOCK = (ACX_DEBUG>1)*0x0001, /* locking debug log */ ++ L_INIT = (ACX_DEBUG>0)*0x0002, /* special card initialization logging */ ++ L_IRQ = (ACX_DEBUG>0)*0x0004, /* interrupt stuff */ ++ L_ASSOC = (ACX_DEBUG>0)*0x0008, /* assocation (network join) and station log */ ++ L_FUNC = (ACX_DEBUG>1)*0x0020, /* logging of function enter / leave */ ++ L_XFER = (ACX_DEBUG>1)*0x0080, /* logging of transfers and mgmt */ ++ L_DATA = (ACX_DEBUG>1)*0x0100, /* logging of transfer data */ ++ L_DEBUG = (ACX_DEBUG>1)*0x0200, /* log of debug info */ ++ L_IOCTL = (ACX_DEBUG>0)*0x0400, /* log ioctl calls */ ++ L_CTL = (ACX_DEBUG>1)*0x0800, /* log of low-level ctl commands */ ++ L_BUFR = (ACX_DEBUG>1)*0x1000, /* debug rx buffer mgmt (ring buffer etc.) */ ++ L_XFER_BEACON = (ACX_DEBUG>1)*0x2000, /* also log beacon packets */ ++ L_BUFT = (ACX_DEBUG>1)*0x4000, /* debug tx buffer mgmt (ring buffer etc.) */ ++ L_USBRXTX = (ACX_DEBUG>0)*0x8000, /* debug USB rx/tx operations */ ++ L_BUF = L_BUFR + L_BUFT, ++ L_ANY = 0xffff ++}; ++ ++#if ACX_DEBUG ++extern unsigned int acx_debug; ++#else ++enum { acx_debug = 0 }; ++#endif ++ ++ ++/*********************************************************************** ++** Random helpers ++*/ ++#define ACX_PACKED __attribute__ ((packed)) ++ ++#define VEC_SIZE(a) (sizeof(a)/sizeof(a[0])) ++ ++/* Use worker_queues for 2.5/2.6 kernels and queue tasks for 2.4 kernels ++ (used for the 'bottom half' of the interrupt routine) */ ++ ++#include <linux/workqueue.h> ++#define USE_WORKER_TASKS ++#define WORK_STRUCT struct work_struct ++#define SCHEDULE_WORK schedule_work ++#define FLUSH_SCHEDULED_WORK flush_scheduled_work ++ ++ ++/*********************************************************************** ++** Constants ++*/ ++#define OK 0 ++#define NOT_OK 1 ++ ++/* The supported chip models */ ++#define CHIPTYPE_ACX100 1 ++#define CHIPTYPE_ACX111 2 ++ ++#define IS_ACX100(adev) ((adev)->chip_type == CHIPTYPE_ACX100) ++#define IS_ACX111(adev) ((adev)->chip_type == CHIPTYPE_ACX111) ++ ++/* Supported interfaces */ ++#define DEVTYPE_PCI 0 ++#define DEVTYPE_USB 1 ++#define DEVTYPE_MEM 2 ++ ++#if !defined(CONFIG_ACX_PCI) && !defined(CONFIG_ACX_USB) && !defined(CONFIG_ACX_MEM) && !defined(CONFIG_ACX_CS) ++#error Driver must include PCI, USB, PCMCIA or memory mapped interface support. You selected none of them. ++#endif ++ ++#if defined(CONFIG_ACX_PCI) ++ #if !defined(CONFIG_ACX_USB) ++ #define IS_PCI(adev) 1 ++ #else ++ #define IS_PCI(adev) ((adev)->dev_type == DEVTYPE_PCI) ++ #endif ++#else ++ #define IS_PCI(adev) 0 ++#endif ++ ++#if defined(CONFIG_ACX_USB) ++ #if !defined(CONFIG_ACX_PCI) ++ #define IS_USB(adev) 1 ++ #else ++ #define IS_USB(adev) ((adev)->dev_type == DEVTYPE_USB) ++ #endif ++#else ++ #define IS_USB(adev) 0 ++#endif ++ ++#if defined(CONFIG_ACX_MEM) || defined(CONFIG_ACX_CS) ++ #define IS_MEM(adev) 1 ++#else ++ #define IS_MEM(adev) 0 ++#endif ++ ++/* Driver defaults */ ++#define DEFAULT_DTIM_INTERVAL 10 ++/* used to be 2048, but FreeBSD driver changed it to 4096 to work properly ++** in noisy wlans */ ++#define DEFAULT_MSDU_LIFETIME 4096 ++#define DEFAULT_RTS_THRESHOLD 2312 /* max. size: disable RTS mechanism */ ++#define DEFAULT_BEACON_INTERVAL 100 ++ ++#define ACX100_BAP_DATALEN_MAX 4096 ++#define ACX100_RID_GUESSING_MAXLEN 2048 /* I'm not really sure */ ++#define ACX100_RIDDATA_MAXLEN ACX100_RID_GUESSING_MAXLEN ++ ++/* Support Constants */ ++/* Radio type names, found in Win98 driver's TIACXLN.INF */ ++#define RADIO_MAXIM_0D 0x0d ++#define RADIO_RFMD_11 0x11 ++#define RADIO_RALINK_15 0x15 ++/* used in ACX111 cards (WG311v2, WL-121, ...): */ ++#define RADIO_RADIA_16 0x16 ++/* most likely *sometimes* used in ACX111 cards: */ ++#define RADIO_UNKNOWN_17 0x17 ++/* FwRad19.bin was found in a Safecom driver; must be an ACX111 radio: */ ++#define RADIO_UNKNOWN_19 0x19 ++#define RADIO_UNKNOWN_1B 0x1b /* radio in SafeCom SWLUT-54125 USB adapter; entirely unknown!! */ ++ ++/* Controller Commands */ ++/* can be found in table cmdTable in firmware "Rev. 1.5.0" (FW150) */ ++#define ACX1xx_CMD_RESET 0x00 ++#define ACX1xx_CMD_INTERROGATE 0x01 ++#define ACX1xx_CMD_CONFIGURE 0x02 ++#define ACX1xx_CMD_ENABLE_RX 0x03 ++#define ACX1xx_CMD_ENABLE_TX 0x04 ++#define ACX1xx_CMD_DISABLE_RX 0x05 ++#define ACX1xx_CMD_DISABLE_TX 0x06 ++#define ACX1xx_CMD_FLUSH_QUEUE 0x07 ++#define ACX1xx_CMD_SCAN 0x08 ++#define ACX1xx_CMD_STOP_SCAN 0x09 ++#define ACX1xx_CMD_CONFIG_TIM 0x0a ++#define ACX1xx_CMD_JOIN 0x0b ++#define ACX1xx_CMD_WEP_MGMT 0x0c ++#ifdef OLD_FIRMWARE_VERSIONS ++#define ACX100_CMD_HALT 0x0e /* mapped to unknownCMD in FW150 */ ++#else ++#define ACX1xx_CMD_MEM_READ 0x0d ++#define ACX1xx_CMD_MEM_WRITE 0x0e ++#endif ++#define ACX1xx_CMD_SLEEP 0x0f ++#define ACX1xx_CMD_WAKE 0x10 ++#define ACX1xx_CMD_UNKNOWN_11 0x11 /* mapped to unknownCMD in FW150 */ ++#define ACX100_CMD_INIT_MEMORY 0x12 ++#define ACX1FF_CMD_DISABLE_RADIO 0x12 /* new firmware? TNETW1450? */ ++#define ACX1xx_CMD_CONFIG_BEACON 0x13 ++#define ACX1xx_CMD_CONFIG_PROBE_RESPONSE 0x14 ++#define ACX1xx_CMD_CONFIG_NULL_DATA 0x15 ++#define ACX1xx_CMD_CONFIG_PROBE_REQUEST 0x16 ++#define ACX1xx_CMD_FCC_TEST 0x17 ++#define ACX1xx_CMD_RADIOINIT 0x18 ++#define ACX111_CMD_RADIOCALIB 0x19 ++#define ACX1FF_CMD_NOISE_HISTOGRAM 0x1c /* new firmware? TNETW1450? */ ++#define ACX1FF_CMD_RX_RESET 0x1d /* new firmware? TNETW1450? */ ++#define ACX1FF_CMD_LNA_CONTROL 0x20 /* new firmware? TNETW1450? */ ++#define ACX1FF_CMD_CONTROL_DBG_TRACE 0x21 /* new firmware? TNETW1450? */ ++ ++/* 'After Interrupt' Commands */ ++#define ACX_AFTER_IRQ_CMD_STOP_SCAN 0x01 ++#define ACX_AFTER_IRQ_CMD_ASSOCIATE 0x02 ++#define ACX_AFTER_IRQ_CMD_RADIO_RECALIB 0x04 ++#define ACX_AFTER_IRQ_UPDATE_CARD_CFG 0x08 ++#define ACX_AFTER_IRQ_TX_CLEANUP 0x10 ++#define ACX_AFTER_IRQ_COMPLETE_SCAN 0x20 ++#define ACX_AFTER_IRQ_RESTART_SCAN 0x40 ++ ++/*********************************************************************** ++** Tx/Rx buffer sizes and watermarks ++** ++** This will alloc and use DMAable buffers of ++** WLAN_A4FR_MAXLEN_WEP_FCS * (RX_CNT + TX_CNT) bytes ++** RX/TX_CNT=32 -> ~150k DMA buffers ++** RX/TX_CNT=16 -> ~75k DMA buffers ++** ++** 2005-10-10: reduced memory usage by lowering both to 16 ++*/ ++#define RX_CNT 16 ++#define TX_CNT 16 ++ ++/* we clean up txdescs when we have N free txdesc: */ ++#define TX_CLEAN_BACKLOG (TX_CNT/4) ++#define TX_START_CLEAN (TX_CNT - TX_CLEAN_BACKLOG) ++#define TX_EMERG_CLEAN 2 ++/* we stop queue if we have < N free txbufs: */ ++#define TX_STOP_QUEUE 3 ++/* we start queue if we have >= N free txbufs: */ ++#define TX_START_QUEUE 5 ++ ++/*********************************************************************** ++** Interrogate/Configure cmd constants ++** ++** NB: length includes JUST the data part of the IE ++** (does not include size of the (type,len) pair) ++** ++** TODO: seems that acx100, acx100usb, acx111 have some differences, ++** fix code with regard to this! ++*/ ++ ++#define DEF_IE(name, val, len) enum { ACX##name=val, ACX##name##_LEN=len } ++ ++/* Information Elements: Network Parameters, Static Configuration Entities */ ++/* these are handled by real_cfgtable in firmware "Rev 1.5.0" (FW150) */ ++DEF_IE(1xx_IE_UNKNOWN_00 ,0x0000, -1); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(100_IE_ACX_TIMER ,0x0001, 0x10); ++DEF_IE(1xx_IE_POWER_MGMT ,0x0002, 0x06); /* TNETW1450: length 0x18!! */ ++DEF_IE(1xx_IE_QUEUE_CONFIG ,0x0003, 0x1c); ++DEF_IE(100_IE_BLOCK_SIZE ,0x0004, 0x02); ++DEF_IE(1FF_IE_SLOT_TIME ,0x0004, 0x08); /* later firmware versions only? */ ++DEF_IE(1xx_IE_MEMORY_CONFIG_OPTIONS ,0x0005, 0x14); ++DEF_IE(1FF_IE_QUEUE_HEAD ,0x0005, 0x14 /* FIXME: length? */); ++DEF_IE(1xx_IE_RATE_FALLBACK ,0x0006, 0x01); /* TNETW1450: length 2 */ ++DEF_IE(100_IE_WEP_OPTIONS ,0x0007, 0x03); ++DEF_IE(111_IE_RADIO_BAND ,0x0007, -1); ++DEF_IE(1FF_IE_TIMING_CFG ,0x0007, -1); /* later firmware versions; TNETW1450 only? */ ++DEF_IE(100_IE_SSID ,0x0008, 0x20); /* huh? */ ++DEF_IE(1xx_IE_MEMORY_MAP ,0x0008, 0x28); /* huh? TNETW1450 has length 0x40!! */ ++DEF_IE(1xx_IE_SCAN_STATUS ,0x0009, 0x04); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(1xx_IE_ASSOC_ID ,0x000a, 0x02); ++DEF_IE(1xx_IE_UNKNOWN_0B ,0x000b, -1); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(1FF_IE_TX_POWER_LEVEL_TABLE ,0x000b, 0x18); /* later firmware versions; TNETW1450 only? */ ++DEF_IE(100_IE_UNKNOWN_0C ,0x000c, -1); /* very small implementation in FW150! */ ++/* ACX100 has an equivalent struct in the cmd mailbox directly after reset. ++ * 0x14c seems extremely large, will trash stack on failure (memset!) ++ * in case of small input struct --> OOPS! */ ++DEF_IE(111_IE_CONFIG_OPTIONS ,0x000c, 0x14c); ++DEF_IE(1xx_IE_FWREV ,0x000d, 0x18); ++DEF_IE(1xx_IE_FCS_ERROR_COUNT ,0x000e, 0x04); ++DEF_IE(1xx_IE_MEDIUM_USAGE ,0x000f, 0x08); ++DEF_IE(1xx_IE_RXCONFIG ,0x0010, 0x04); ++DEF_IE(100_IE_UNKNOWN_11 ,0x0011, -1); /* NONBINARY: large implementation in FW150! link quality readings or so? */ ++DEF_IE(111_IE_QUEUE_THRESH ,0x0011, -1); ++DEF_IE(100_IE_UNKNOWN_12 ,0x0012, -1); /* NONBINARY: VERY large implementation in FW150!! */ ++DEF_IE(111_IE_BSS_POWER_SAVE ,0x0012, /* -1 */ 2); ++DEF_IE(1xx_IE_FIRMWARE_STATISTICS ,0x0013, 0x9c); /* TNETW1450: length 0x134!! */ ++DEF_IE(1FF_IE_RX_INTR_CONFIG ,0x0014, 0x14); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1xx_IE_FEATURE_CONFIG ,0x0015, 0x08); ++DEF_IE(111_IE_KEY_CHOOSE ,0x0016, 0x04); /* for rekeying. really len=4?? */ ++DEF_IE(1FF_IE_MISC_CONFIG_TABLE ,0x0017, 0x04); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_WONE_CONFIG ,0x0018, -1); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_TID_CONFIG ,0x001a, 0x2c); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_CALIB_ASSESSMENT ,0x001e, 0x04); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_BEACON_FILTER_OPTIONS ,0x001f, 0x02); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_LOW_RSSI_THRESH_OPT ,0x0020, 0x04); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_NOISE_HISTOGRAM_RESULTS ,0x0021, 0x30); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_PACKET_DETECT_THRESH ,0x0023, 0x04); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_TX_CONFIG_OPTIONS ,0x0024, 0x04); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_CCA_THRESHOLD ,0x0025, 0x02); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_EVENT_MASK ,0x0026, 0x08); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_DTIM_PERIOD ,0x0027, 0x02); /* later firmware versions, TNETW1450 only? */ ++DEF_IE(1FF_IE_ACI_CONFIG_SET ,0x0029, 0x06); /* later firmware versions; maybe TNETW1450 only? */ ++DEF_IE(1FF_IE_EEPROM_VER ,0x0030, 0x04); /* later firmware versions; maybe TNETW1450 only? */ ++DEF_IE(1xx_IE_DOT11_STATION_ID ,0x1001, 0x06); ++DEF_IE(100_IE_DOT11_UNKNOWN_1002 ,0x1002, -1); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(111_IE_DOT11_FRAG_THRESH ,0x1002, -1); /* mapped to cfgInvalid in FW150; TNETW1450 has length 2!! */ ++DEF_IE(100_IE_DOT11_BEACON_PERIOD ,0x1003, 0x02); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(1xx_IE_DOT11_DTIM_PERIOD ,0x1004, -1); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(1FF_IE_DOT11_MAX_RX_LIFETIME ,0x1004, -1); /* later firmware versions; maybe TNETW1450 only? */ ++DEF_IE(1xx_IE_DOT11_SHORT_RETRY_LIMIT ,0x1005, 0x01); /* TNETW1450: length 2 */ ++DEF_IE(1xx_IE_DOT11_LONG_RETRY_LIMIT ,0x1006, 0x01); /* TNETW1450: length 2 */ ++DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_WRITE ,0x1007, 0x20); /* configure default keys; TNETW1450 has length 0x24!! */ ++DEF_IE(1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME ,0x1008, 0x04); ++DEF_IE(1xx_IE_DOT11_GROUP_ADDR ,0x1009, -1); ++DEF_IE(1xx_IE_DOT11_CURRENT_REG_DOMAIN ,0x100a, 0x02); ++/* It's harmless to have larger struct. Use USB case always. */ ++DEF_IE(1xx_IE_DOT11_CURRENT_ANTENNA ,0x100b, 0x02); /* in fact len=1 for PCI */ ++DEF_IE(1xx_IE_DOT11_UNKNOWN_100C ,0x100c, -1); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(1xx_IE_DOT11_TX_POWER_LEVEL ,0x100d, 0x01); /* TNETW1450 has length 2!! */ ++DEF_IE(1xx_IE_DOT11_CURRENT_CCA_MODE ,0x100e, 0x02); /* in fact len=1 for PCI */ ++/* USB doesn't return anything - len==0?! */ ++DEF_IE(100_IE_DOT11_ED_THRESHOLD ,0x100f, 0x04); ++DEF_IE(1xx_IE_DOT11_WEP_DEFAULT_KEY_SET ,0x1010, 0x01); /* set default key ID; TNETW1450: length 2 */ ++DEF_IE(100_IE_DOT11_UNKNOWN_1011 ,0x1011, -1); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(1FF_IE_DOT11_CURR_5GHZ_REGDOM ,0x1011, -1); /* later firmware versions; maybe TNETW1450 only? */ ++DEF_IE(100_IE_DOT11_UNKNOWN_1012 ,0x1012, -1); /* mapped to cfgInvalid in FW150 */ ++DEF_IE(100_IE_DOT11_UNKNOWN_1013 ,0x1013, -1); /* mapped to cfgInvalid in FW150 */ ++ ++#if 0 ++/* Experimentally obtained on acx100, fw 1.9.8.b ++** -1 means that fw returned 'invalid IE' ++** 0200 FC00 nnnn... are test read contents: u16 type, u16 len, data ++** (AA are poison bytes marking bytes not written by fw) ++** ++** Looks like acx100 fw does not update len field (thus len=256-4=FC here) ++** A number of IEs seem to trash type,len fields ++** IEs marked 'huge' return gobs of data (no poison bytes remain) ++*/ ++DEF_IE(100_IE_INVAL_00, 0x0000, -1); ++DEF_IE(100_IE_INVAL_01, 0x0001, -1); /* IE_ACX_TIMER, len=16 on older fw */ ++DEF_IE(100_IE_POWER_MGMT, 0x0002, 4); /* 0200FC00 00040000 AAAAAAAA */ ++DEF_IE(100_IE_QUEUE_CONFIG, 0x0003, 28); /* 0300FC00 48060000 9CAD0000 0101AAAA DCB00000 E4B00000 9CAA0000 00AAAAAA */ ++DEF_IE(100_IE_BLOCK_SIZE, 0x0004, 2); /* 0400FC00 0001AAAA AAAAAAAA AAAAAAAA */ ++/* write only: */ ++DEF_IE(100_IE_MEMORY_CONFIG_OPTIONS, 0x0005, 20); ++DEF_IE(100_IE_RATE_FALLBACK, 0x0006, 1); /* 0600FC00 00AAAAAA AAAAAAAA AAAAAAAA */ ++/* write only: */ ++DEF_IE(100_IE_WEP_OPTIONS, 0x0007, 3); ++DEF_IE(100_IE_MEMORY_MAP, 0x0008, 40); /* huge: 0800FC00 30000000 6CA20000 70A20000... */ ++/* gives INVAL on read: */ ++DEF_IE(100_IE_SCAN_STATUS, 0x0009, -1); ++DEF_IE(100_IE_ASSOC_ID, 0x000a, 2); /* huge: 0A00FC00 00000000 01040800 00000000... */ ++DEF_IE(100_IE_INVAL_0B, 0x000b, -1); ++/* 'command rejected': */ ++DEF_IE(100_IE_CONFIG_OPTIONS, 0x000c, -3); ++DEF_IE(100_IE_FWREV, 0x000d, 24); /* 0D00FC00 52657620 312E392E 382E6200 AAAAAAAA AAAAAAAA 05050201 AAAAAAAA */ ++DEF_IE(100_IE_FCS_ERROR_COUNT, 0x000e, 4); ++DEF_IE(100_IE_MEDIUM_USAGE, 0x000f, 8); /* E41F0000 2D780300 FCC91300 AAAAAAAA */ ++DEF_IE(100_IE_RXCONFIG, 0x0010, 4); /* 1000FC00 00280000 AAAAAAAA AAAAAAAA */ ++DEF_IE(100_IE_QUEUE_THRESH, 0x0011, 12); /* 1100FC00 AAAAAAAA 00000000 00000000 */ ++DEF_IE(100_IE_BSS_POWER_SAVE, 0x0012, 1); /* 1200FC00 00AAAAAA AAAAAAAA AAAAAAAA */ ++/* read only, variable len */ ++DEF_IE(100_IE_FIRMWARE_STATISTICS, 0x0013, 256); /* 0000AC00 00000000 ... */ ++DEF_IE(100_IE_INT_CONFIG, 0x0014, 20); /* 00000000 00000000 00000000 00000000 5D74D105 00000000 AAAAAAAA AAAAAAAA */ ++DEF_IE(100_IE_FEATURE_CONFIG, 0x0015, 8); /* 1500FC00 16000000 AAAAAAAA AAAAAAAA */ ++/* returns 'invalid MAC': */ ++DEF_IE(100_IE_KEY_CHOOSE, 0x0016, -4); ++DEF_IE(100_IE_INVAL_17, 0x0017, -1); ++DEF_IE(100_IE_UNKNOWN_18, 0x0018, 0); /* null len?! 1800FC00 AAAAAAAA AAAAAAAA AAAAAAAA */ ++DEF_IE(100_IE_UNKNOWN_19, 0x0019, 256); /* huge: 1900FC00 9C1F00EA FEFFFFEA FEFFFFEA... */ ++DEF_IE(100_IE_INVAL_1A, 0x001A, -1); ++ ++DEF_IE(100_IE_DOT11_INVAL_1000, 0x1000, -1); ++DEF_IE(100_IE_DOT11_STATION_ID, 0x1001, 6); /* huge: 0110FC00 58B10E2F 03000000 00000000... */ ++DEF_IE(100_IE_DOT11_INVAL_1002, 0x1002, -1); ++DEF_IE(100_IE_DOT11_INVAL_1003, 0x1003, -1); ++DEF_IE(100_IE_DOT11_INVAL_1004, 0x1004, -1); ++DEF_IE(100_IE_DOT11_SHORT_RETRY_LIMIT, 0x1005, 1); ++DEF_IE(100_IE_DOT11_LONG_RETRY_LIMIT, 0x1006, 1); ++/* write only: */ ++DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_WRITE, 0x1007, 32); ++DEF_IE(100_IE_DOT11_MAX_XMIT_MSDU_LIFETIME, 0x1008, 4); /* huge: 0810FC00 00020000 F4010000 00000000... */ ++/* undoc but returns something */ ++DEF_IE(100_IE_DOT11_GROUP_ADDR, 0x1009, 12); /* huge: 0910FC00 00000000 00000000 00000000... */ ++DEF_IE(100_IE_DOT11_CURRENT_REG_DOMAIN, 0x100a, 1); /* 0A10FC00 30AAAAAA AAAAAAAA AAAAAAAA */ ++DEF_IE(100_IE_DOT11_CURRENT_ANTENNA, 0x100b, 1); /* 0B10FC00 8FAAAAAA AAAAAAAA AAAAAAAA */ ++DEF_IE(100_IE_DOT11_INVAL_100C, 0x100c, -1); ++DEF_IE(100_IE_DOT11_TX_POWER_LEVEL, 0x100d, 2); /* 00000000 0100AAAA AAAAAAAA AAAAAAAA */ ++DEF_IE(100_IE_DOT11_CURRENT_CCA_MODE, 0x100e, 1); /* 0E10FC00 0DAAAAAA AAAAAAAA AAAAAAAA */ ++DEF_IE(100_IE_DOT11_ED_THRESHOLD, 0x100f, 4); /* 0F10FC00 70000000 AAAAAAAA AAAAAAAA */ ++/* set default key ID */ ++DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_SET, 0x1010, 1); /* 1010FC00 00AAAAAA AAAAAAAA AAAAAAAA */ ++DEF_IE(100_IE_DOT11_INVAL_1011, 0x1011, -1); ++DEF_IE(100_IE_DOT11_INVAL_1012, 0x1012, -1); ++DEF_IE(100_IE_DOT11_INVAL_1013, 0x1013, -1); ++DEF_IE(100_IE_DOT11_UNKNOWN_1014, 0x1014, 256); /* huge */ ++DEF_IE(100_IE_DOT11_UNKNOWN_1015, 0x1015, 256); /* huge */ ++DEF_IE(100_IE_DOT11_UNKNOWN_1016, 0x1016, 256); /* huge */ ++DEF_IE(100_IE_DOT11_UNKNOWN_1017, 0x1017, 256); /* huge */ ++DEF_IE(100_IE_DOT11_UNKNOWN_1018, 0x1018, 256); /* huge */ ++DEF_IE(100_IE_DOT11_UNKNOWN_1019, 0x1019, 256); /* huge */ ++#endif ++ ++#if 0 ++/* Experimentally obtained on PCI acx111 Xterasys XN-2522g, fw 1.2.1.34 ++** -1 means that fw returned 'invalid IE' ++** 0400 0800 nnnn... are test read contents: u16 type, u16 len, data ++** (AA are poison bytes marking bytes not written by fw) ++** ++** Looks like acx111 fw reports real len! ++*/ ++DEF_IE(111_IE_INVAL_00, 0x0000, -1); ++DEF_IE(111_IE_INVAL_01, 0x0001, -1); ++DEF_IE(111_IE_POWER_MGMT, 0x0002, 12); ++/* write only, variable len: 12 + rxqueue_cnt*8 + txqueue_cnt*4: */ ++DEF_IE(111_IE_MEMORY_CONFIG, 0x0003, 24); ++DEF_IE(111_IE_BLOCK_SIZE, 0x0004, 8); /* 04000800 AA00AAAA AAAAAAAA */ ++/* variable len: 8 + rxqueue_cnt*8 + txqueue_cnt*8: */ ++DEF_IE(111_IE_QUEUE_HEAD, 0x0005, 24); ++DEF_IE(111_IE_RATE_FALLBACK, 0x0006, 1); ++/* acx100 name:WEP_OPTIONS */ ++/* said to have len:1 (not true, actually returns 12 bytes): */ ++DEF_IE(111_IE_RADIO_BAND, 0x0007, 12); /* 07000C00 AAAA1F00 FF03AAAA AAAAAAAA */ ++DEF_IE(111_IE_MEMORY_MAP, 0x0008, 48); ++/* said to have len:4, but gives INVAL on read: */ ++DEF_IE(111_IE_SCAN_STATUS, 0x0009, -1); ++DEF_IE(111_IE_ASSOC_ID, 0x000a, 2); ++/* write only, len is not known: */ ++DEF_IE(111_IE_UNKNOWN_0B, 0x000b, 0); ++/* read only, variable len. I see 67 byte reads: */ ++DEF_IE(111_IE_CONFIG_OPTIONS, 0x000c, 67); /* 0C004300 01160500 ... */ ++DEF_IE(111_IE_FWREV, 0x000d, 24); ++DEF_IE(111_IE_FCS_ERROR_COUNT, 0x000e, 4); ++DEF_IE(111_IE_MEDIUM_USAGE, 0x000f, 8); ++DEF_IE(111_IE_RXCONFIG, 0x0010, 4); ++DEF_IE(111_IE_QUEUE_THRESH, 0x0011, 12); ++DEF_IE(111_IE_BSS_POWER_SAVE, 0x0012, 1); ++/* read only, variable len. I see 240 byte reads: */ ++DEF_IE(111_IE_FIRMWARE_STATISTICS, 0x0013, 240); /* 1300F000 00000000 ... */ ++/* said to have len=17. looks like fw pads it to 20: */ ++DEF_IE(111_IE_INT_CONFIG, 0x0014, 20); /* 14001400 00000000 00000000 00000000 00000000 00000000 */ ++DEF_IE(111_IE_FEATURE_CONFIG, 0x0015, 8); ++/* said to be name:KEY_INDICATOR, len:4, but gives INVAL on read: */ ++DEF_IE(111_IE_KEY_CHOOSE, 0x0016, -1); ++/* said to have len:4, but in fact returns 8: */ ++DEF_IE(111_IE_MAX_USB_XFR, 0x0017, 8); /* 17000800 00014000 00000000 */ ++DEF_IE(111_IE_INVAL_18, 0x0018, -1); ++DEF_IE(111_IE_INVAL_19, 0x0019, -1); ++/* undoc but returns something: */ ++/* huh, fw indicates len=20 but uses 4 more bytes in buffer??? */ ++DEF_IE(111_IE_UNKNOWN_1A, 0x001A, 20); /* 1A001400 AA00AAAA 0000020F FF030000 00020000 00000007 04000000 */ ++ ++DEF_IE(111_IE_DOT11_INVAL_1000, 0x1000, -1); ++DEF_IE(111_IE_DOT11_STATION_ID, 0x1001, 6); ++DEF_IE(111_IE_DOT11_FRAG_THRESH, 0x1002, 2); ++/* acx100 only? gives INVAL on read: */ ++DEF_IE(111_IE_DOT11_BEACON_PERIOD, 0x1003, -1); ++/* said to be MAX_RECV_MSDU_LIFETIME: */ ++DEF_IE(111_IE_DOT11_DTIM_PERIOD, 0x1004, 4); ++DEF_IE(111_IE_DOT11_SHORT_RETRY_LIMIT, 0x1005, 1); ++DEF_IE(111_IE_DOT11_LONG_RETRY_LIMIT, 0x1006, 1); ++/* acx100 only? gives INVAL on read: */ ++DEF_IE(111_IE_DOT11_WEP_DEFAULT_KEY_WRITE, 0x1007, -1); ++DEF_IE(111_IE_DOT11_MAX_XMIT_MSDU_LIFETIME, 0x1008, 4); ++/* undoc but returns something. maybe it's 2 multicast MACs to listen to? */ ++DEF_IE(111_IE_DOT11_GROUP_ADDR, 0x1009, 12); /* 09100C00 00000000 00000000 00000000 */ ++DEF_IE(111_IE_DOT11_CURRENT_REG_DOMAIN, 0x100a, 1); ++DEF_IE(111_IE_DOT11_CURRENT_ANTENNA, 0x100b, 2); ++DEF_IE(111_IE_DOT11_INVAL_100C, 0x100c, -1); ++DEF_IE(111_IE_DOT11_TX_POWER_LEVEL, 0x100d, 1); ++/* said to have len=1 but gives INVAL on read: */ ++DEF_IE(111_IE_DOT11_CURRENT_CCA_MODE, 0x100e, -1); ++/* said to have len=4 but gives INVAL on read: */ ++DEF_IE(111_IE_DOT11_ED_THRESHOLD, 0x100f, -1); ++/* set default key ID. write only: */ ++DEF_IE(111_IE_DOT11_WEP_DEFAULT_KEY_SET, 0x1010, 1); ++/* undoc but returns something: */ ++DEF_IE(111_IE_DOT11_UNKNOWN_1011, 0x1011, 1); /* 11100100 20 */ ++DEF_IE(111_IE_DOT11_INVAL_1012, 0x1012, -1); ++DEF_IE(111_IE_DOT11_INVAL_1013, 0x1013, -1); ++#endif ++ ++ ++/*********************************************************************** ++**Information Frames Structures ++*/ ++ ++/* Used in beacon frames and the like */ ++#define DOT11RATEBYTE_1 (1*2) ++#define DOT11RATEBYTE_2 (2*2) ++#define DOT11RATEBYTE_5_5 (5*2+1) ++#define DOT11RATEBYTE_11 (11*2) ++#define DOT11RATEBYTE_22 (22*2) ++#define DOT11RATEBYTE_6_G (6*2) ++#define DOT11RATEBYTE_9_G (9*2) ++#define DOT11RATEBYTE_12_G (12*2) ++#define DOT11RATEBYTE_18_G (18*2) ++#define DOT11RATEBYTE_24_G (24*2) ++#define DOT11RATEBYTE_36_G (36*2) ++#define DOT11RATEBYTE_48_G (48*2) ++#define DOT11RATEBYTE_54_G (54*2) ++#define DOT11RATEBYTE_BASIC 0x80 /* flags rates included in basic rate set */ ++ ++ ++/*********************************************************************** ++** rxbuffer_t ++** ++** This is the format of rx data returned by acx ++*/ ++ ++/* I've hoped it's a 802.11 PHY header, but no... ++ * so far, I've seen on acx111: ++ * 0000 3a00 0000 0000 IBSS Beacons ++ * 0000 3c00 0000 0000 ESS Beacons ++ * 0000 2700 0000 0000 Probe requests ++ * --vda ++ */ ++typedef struct phy_hdr { ++ u8 unknown[4]; ++ u8 acx111_unknown[4]; ++} ACX_PACKED phy_hdr_t; ++ ++/* seems to be a bit similar to hfa384x_rx_frame. ++ * These fields are still not quite obvious, though. ++ * Some seem to have different meanings... */ ++ ++#define RXBUF_HDRSIZE 12 ++#define RXBUF_BYTES_RCVD(adev, rxbuf) \ ++ ((le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0xfff) - (adev)->phy_header_len) ++#define RXBUF_BYTES_USED(rxbuf) \ ++ ((le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0xfff) + RXBUF_HDRSIZE) ++/* USBism */ ++#define RXBUF_IS_TXSTAT(rxbuf) (le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0x8000) ++/* ++mac_cnt_rcvd: ++ 12 bits: length of frame from control field to first byte of FCS ++ 3 bits: reserved ++ 1 bit: 1 = it's a tx status info, not a rx packet (USB only) ++ ++mac_cnt_mblks: ++ 6 bits: number of memory block used to store frame in adapter memory ++ 1 bit: Traffic Indicator bit in TIM of received Beacon was set ++ ++mac_status: 1 byte (bitmap): ++ 7 Matching BSSID ++ 6 Matching SSID ++ 5 BDCST Address 1 field is a broadcast ++ 4 VBM received beacon frame has more than one set bit (?!) ++ 3 TIM Set bit representing this station is set in TIM of received beacon ++ 2 GROUP Address 1 is a multicast ++ 1 ADDR1 Address 1 matches our MAC ++ 0 FCSGD FSC is good ++ ++phy_stat_baseband: 1 byte (bitmap): ++ 7 Preamble frame had a long preamble ++ 6 PLCP Error CRC16 error in PLCP header ++ 5 Unsup_Mod unsupported modulation ++ 4 Selected Antenna antenna 1 was used to receive this frame ++ 3 PBCC/CCK frame used: 1=PBCC, 0=CCK modulation ++ 2 OFDM frame used OFDM modulation ++ 1 TI Protection protection frame was detected ++ 0 Reserved ++ ++phy_plcp_signal: 1 byte: ++ Receive PLCP Signal field from the Baseband Processor ++ ++phy_level: 1 byte: ++ receive AGC gain level (can be used to measure receive signal strength) ++ ++phy_snr: 1 byte: ++ estimated noise power of equalized receive signal ++ at input of FEC decoder (can be used to measure receive signal quality) ++ ++time: 4 bytes: ++ timestamp sampled from either the Access Manager TSF counter ++ or free-running microsecond counter when the MAC receives ++ first byte of PLCP header. ++*/ ++ ++typedef struct rxbuffer { ++ u16 mac_cnt_rcvd; /* only 12 bits are len! (0xfff) */ ++ u8 mac_cnt_mblks; ++ u8 mac_status; ++ u8 phy_stat_baseband; /* bit 0x80: used LNA (Low-Noise Amplifier) */ ++ u8 phy_plcp_signal; ++ u8 phy_level; /* PHY stat */ ++ u8 phy_snr; /* PHY stat */ ++ u32 time; /* timestamp upon MAC rcv first byte */ ++/* 4-byte (acx100) or 8-byte (acx111) phy header will be here ++** if RX_CFG1_INCLUDE_PHY_HDR is in effect: ++** phy_hdr_t phy */ ++ wlan_hdr_a3_t hdr_a3; ++ /* maximally sized data part of wlan packet */ ++ u8 data_a3[WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN]; ++ /* can add hdr/data_a4 if needed */ ++} ACX_PACKED rxbuffer_t; ++ ++ ++/*--- Firmware statistics ----------------------------------------------------*/ ++ ++/* define a random 100 bytes more to catch firmware versions which ++ * provide a bigger struct */ ++#define FW_STATS_FUTURE_EXTENSION 100 ++ ++typedef struct fw_stats_tx { ++ u32 tx_desc_of; ++} ACX_PACKED fw_stats_tx_t; ++ ++typedef struct fw_stats_rx { ++ u32 rx_oom; ++ u32 rx_hdr_of; ++ u32 rx_hw_stuck; /* old: u32 rx_hdr_use_next */ ++ u32 rx_dropped_frame; ++ u32 rx_frame_ptr_err; ++ u32 rx_xfr_hint_trig; ++ u32 rx_aci_events; /* later versions only */ ++ u32 rx_aci_resets; /* later versions only */ ++} ACX_PACKED fw_stats_rx_t; ++ ++typedef struct fw_stats_dma { ++ u32 rx_dma_req; ++ u32 rx_dma_err; ++ u32 tx_dma_req; ++ u32 tx_dma_err; ++} ACX_PACKED fw_stats_dma_t; ++ ++typedef struct fw_stats_irq { ++ u32 cmd_cplt; ++ u32 fiq; ++ u32 rx_hdrs; ++ u32 rx_cmplt; ++ u32 rx_mem_of; ++ u32 rx_rdys; ++ u32 irqs; ++ u32 tx_procs; ++ u32 decrypt_done; ++ u32 dma_0_done; ++ u32 dma_1_done; ++ u32 tx_exch_complet; ++ u32 commands; ++ u32 rx_procs; ++ u32 hw_pm_mode_changes; ++ u32 host_acks; ++ u32 pci_pm; ++ u32 acm_wakeups; ++} ACX_PACKED fw_stats_irq_t; ++ ++typedef struct fw_stats_wep { ++ u32 wep_key_count; ++ u32 wep_default_key_count; ++ u32 dot11_def_key_mib; ++ u32 wep_key_not_found; ++ u32 wep_decrypt_fail; ++ u32 wep_pkt_decrypt; ++ u32 wep_decrypt_irqs; ++} ACX_PACKED fw_stats_wep_t; ++ ++typedef struct fw_stats_pwr { ++ u32 tx_start_ctr; ++ u32 no_ps_tx_too_short; ++ u32 rx_start_ctr; ++ u32 no_ps_rx_too_short; ++ u32 lppd_started; ++ u32 no_lppd_too_noisy; ++ u32 no_lppd_too_short; ++ u32 no_lppd_matching_frame; ++} ACX_PACKED fw_stats_pwr_t; ++ ++typedef struct fw_stats_mic { ++ u32 mic_rx_pkts; ++ u32 mic_calc_fail; ++} ACX_PACKED fw_stats_mic_t; ++ ++typedef struct fw_stats_aes { ++ u32 aes_enc_fail; ++ u32 aes_dec_fail; ++ u32 aes_enc_pkts; ++ u32 aes_dec_pkts; ++ u32 aes_enc_irq; ++ u32 aes_dec_irq; ++} ACX_PACKED fw_stats_aes_t; ++ ++typedef struct fw_stats_event { ++ u32 heartbeat; ++ u32 calibration; ++ u32 rx_mismatch; ++ u32 rx_mem_empty; ++ u32 rx_pool; ++ u32 oom_late; ++ u32 phy_tx_err; ++ u32 tx_stuck; ++} ACX_PACKED fw_stats_event_t; ++ ++/* mainly for size calculation only */ ++typedef struct fw_stats { ++ u16 type; ++ u16 len; ++ fw_stats_tx_t tx; ++ fw_stats_rx_t rx; ++ fw_stats_dma_t dma; ++ fw_stats_irq_t irq; ++ fw_stats_wep_t wep; ++ fw_stats_pwr_t pwr; ++ fw_stats_mic_t mic; ++ fw_stats_aes_t aes; ++ fw_stats_event_t evt; ++ u8 _padding[FW_STATS_FUTURE_EXTENSION]; ++} fw_stats_t; ++ ++/* Firmware version struct */ ++ ++typedef struct fw_ver { ++ u16 cmd; ++ u16 size; ++ char fw_id[20]; ++ u32 hw_id; ++} ACX_PACKED fw_ver_t; ++ ++#define FW_ID_SIZE 20 ++ ++typedef struct shared_queueindicator { ++ u32 indicator; ++ u16 host_lock; ++ u16 fw_lock; ++} ACX_PACKED queueindicator_t; ++ ++/*--- WEP stuff --------------------------------------------------------------*/ ++#define DOT11_MAX_DEFAULT_WEP_KEYS 4 ++ ++/* non-firmware struct, no packing necessary */ ++typedef struct wep_key { ++ size_t size; /* most often used member first */ ++ u8 index; ++ u8 key[29]; ++ u16 strange_filler; ++} wep_key_t; /* size = 264 bytes (33*8) */ ++/* FIXME: We don't have size 264! Or is there 2 bytes beyond the key ++ * (strange_filler)? */ ++ ++/* non-firmware struct, no packing necessary */ ++typedef struct key_struct { ++ u8 addr[ETH_ALEN]; /* 0x00 */ ++ u16 filler1; /* 0x06 */ ++ u32 filler2; /* 0x08 */ ++ u32 index; /* 0x0c */ ++ u16 len; /* 0x10 */ ++ u8 key[29]; /* 0x12; is this long enough??? */ ++} key_struct_t; /* size = 276. FIXME: where is the remaining space?? */ ++ ++ ++/*--- Client (peer) info -----------------------------------------------------*/ ++/* adev->sta_list[] is used for: ++** accumulating and processing of scan results ++** keeping client info in AP mode ++** keeping AP info in STA mode (AP is the only one 'client') ++** keeping peer info in ad-hoc mode ++** non-firmware struct --> no packing necessary */ ++enum { ++ CLIENT_EMPTY_SLOT_0 = 0, ++ CLIENT_EXIST_1 = 1, ++ CLIENT_AUTHENTICATED_2 = 2, ++ CLIENT_ASSOCIATED_3 = 3, ++ CLIENT_JOIN_CANDIDATE = 4 ++}; ++struct client { ++ /* most frequent access first */ ++ u8 used; /* misnamed, more like 'status' */ ++ struct client* next; ++ unsigned long mtime; /* last time we heard it, in jiffies */ ++ size_t essid_len; /* length of ESSID (without '\0') */ ++ u32 sir; /* Standard IR */ ++ u32 snr; /* Signal to Noise Ratio */ ++ u16 aid; /* association ID */ ++ u16 seq; /* from client's auth req */ ++ u16 auth_alg; /* from client's auth req */ ++ u16 cap_info; /* from client's assoc req */ ++ u16 rate_cap; /* what client supports (all rates) */ ++ u16 rate_bas; /* what client supports (basic rates) */ ++ u16 rate_cfg; /* what is allowed (by iwconfig etc) */ ++ u16 rate_cur; /* currently used rate mask */ ++ u8 rate_100; /* currently used rate byte (acx100 only) */ ++ u8 address[ETH_ALEN]; ++ u8 bssid[ETH_ALEN]; /* ad-hoc hosts can have bssid != mac */ ++ u8 channel; ++ u8 auth_step; ++ u8 ignore_count; ++ u8 fallback_count; ++ u8 stepup_count; ++ char essid[IW_ESSID_MAX_SIZE + 1]; /* ESSID and trailing '\0' */ ++/* FIXME: this one is too damn big */ ++ char challenge_text[WLAN_CHALLENGE_LEN]; ++}; ++ ++ ++/*********************************************************************** ++** Hardware structures ++*/ ++ ++/* An opaque typesafe helper type ++ * ++ * Some hardware fields are actually pointers, ++ * but they have to remain u32, since using ptr instead ++ * (8 bytes on 64bit systems!) would disrupt the fixed descriptor ++ * format the acx firmware expects in the non-user area. ++ * Since we cannot cram an 8 byte ptr into 4 bytes, we need to ++ * enforce that pointed to data remains in low memory ++ * (address value needs to fit in 4 bytes) on 64bit systems. ++ * ++ * This is easy to get wrong, thus we are using a small struct ++ * and special macros to access it. Macros will check for ++ * attempts to overflow an acx_ptr with value > 0xffffffff. ++ * ++ * Attempts to use acx_ptr without macros result in compile-time errors */ ++ ++typedef struct { ++ u32 v; ++} ACX_PACKED acx_ptr; ++ ++#if ACX_DEBUG ++#define CHECK32(n) BUG_ON(sizeof(n)>4 && (long)(n)>0xffffff00) ++#else ++#define CHECK32(n) ((void)0) ++#endif ++ ++/* acx_ptr <-> integer conversion */ ++#define cpu2acx(n) ({ CHECK32(n); ((acx_ptr){ .v = cpu_to_le32(n) }); }) ++#define acx2cpu(a) (le32_to_cpu(a.v)) ++ ++/* acx_ptr <-> pointer conversion */ ++#define ptr2acx(p) ({ CHECK32(p); ((acx_ptr){ .v = cpu_to_le32((u32)(long)(p)) }); }) ++#define acx2ptr(a) ((void*)le32_to_cpu(a.v)) ++ ++/* Values for rate field (acx100 only) */ ++#define RATE100_1 10 ++#define RATE100_2 20 ++#define RATE100_5 55 ++#define RATE100_11 110 ++#define RATE100_22 220 ++/* This bit denotes use of PBCC: ++** (PBCC encoding is usable with 11 and 22 Mbps speeds only) */ ++#define RATE100_PBCC511 0x80 ++ ++/* Bit values for rate111 field */ ++#define RATE111_1 0x0001 /* DBPSK */ ++#define RATE111_2 0x0002 /* DQPSK */ ++#define RATE111_5 0x0004 /* CCK or PBCC */ ++#define RATE111_6 0x0008 /* CCK-OFDM or OFDM */ ++#define RATE111_9 0x0010 /* CCK-OFDM or OFDM */ ++#define RATE111_11 0x0020 /* CCK or PBCC */ ++#define RATE111_12 0x0040 /* CCK-OFDM or OFDM */ ++#define RATE111_18 0x0080 /* CCK-OFDM or OFDM */ ++#define RATE111_22 0x0100 /* PBCC */ ++#define RATE111_24 0x0200 /* CCK-OFDM or OFDM */ ++#define RATE111_36 0x0400 /* CCK-OFDM or OFDM */ ++#define RATE111_48 0x0800 /* CCK-OFDM or OFDM */ ++#define RATE111_54 0x1000 /* CCK-OFDM or OFDM */ ++#define RATE111_RESERVED 0x2000 ++#define RATE111_PBCC511 0x4000 /* PBCC mod at 5.5 or 11Mbit (else CCK) */ ++#define RATE111_SHORTPRE 0x8000 /* short preamble */ ++/* Special 'try everything' value */ ++#define RATE111_ALL 0x1fff ++/* These bits denote acx100 compatible settings */ ++#define RATE111_ACX100_COMPAT 0x0127 ++/* These bits denote 802.11b compatible settings */ ++#define RATE111_80211B_COMPAT 0x0027 ++ ++/* Descriptor Ctl field bits ++ * init value is 0x8e, "idle" value is 0x82 (in idle tx descs) ++ */ ++#define DESC_CTL_SHORT_PREAMBLE 0x01 /* preamble type: 0 = long; 1 = short */ ++#define DESC_CTL_FIRSTFRAG 0x02 /* this is the 1st frag of the frame */ ++#define DESC_CTL_AUTODMA 0x04 ++#define DESC_CTL_RECLAIM 0x08 /* ready to reuse */ ++#define DESC_CTL_HOSTDONE 0x20 /* host has finished processing */ ++#define DESC_CTL_ACXDONE 0x40 /* acx has finished processing */ ++/* host owns the desc [has to be released last, AFTER modifying all other desc fields!] */ ++#define DESC_CTL_HOSTOWN 0x80 ++#define DESC_CTL_ACXDONE_HOSTOWN (DESC_CTL_ACXDONE | DESC_CTL_HOSTOWN) ++ ++/* Descriptor Status field ++ */ ++#define DESC_STATUS_FULL (1 << 31) ++ ++/* NB: some bits may be interesting for Monitor mode tx (aka Raw tx): */ ++#define DESC_CTL2_SEQ 0x01 /* don't increase sequence field */ ++#define DESC_CTL2_FCS 0x02 /* don't add the FCS */ ++#define DESC_CTL2_MORE_FRAG 0x04 ++#define DESC_CTL2_RETRY 0x08 /* don't increase retry field */ ++#define DESC_CTL2_POWER 0x10 /* don't increase power mgmt. field */ ++#define DESC_CTL2_RTS 0x20 /* do RTS/CTS magic before sending */ ++#define DESC_CTL2_WEP 0x40 /* encrypt this frame */ ++#define DESC_CTL2_DUR 0x80 /* don't increase duration field */ ++ ++/*********************************************************************** ++** PCI structures ++*/ ++/* IRQ Constants ++** (outside of "#ifdef PCI" because USB (mis)uses HOST_INT_SCAN_COMPLETE) */ ++#define HOST_INT_RX_DATA 0x0001 ++#define HOST_INT_TX_COMPLETE 0x0002 ++#define HOST_INT_TX_XFER 0x0004 ++#define HOST_INT_RX_COMPLETE 0x0008 ++#define HOST_INT_DTIM 0x0010 ++#define HOST_INT_BEACON 0x0020 ++#define HOST_INT_TIMER 0x0040 ++#define HOST_INT_KEY_NOT_FOUND 0x0080 ++#define HOST_INT_IV_ICV_FAILURE 0x0100 ++#define HOST_INT_CMD_COMPLETE 0x0200 ++#define HOST_INT_INFO 0x0400 ++#define HOST_INT_OVERFLOW 0x0800 ++#define HOST_INT_PROCESS_ERROR 0x1000 ++#define HOST_INT_SCAN_COMPLETE 0x2000 ++#define HOST_INT_FCS_THRESHOLD 0x4000 ++#define HOST_INT_UNKNOWN 0x8000 ++ ++/* Outside of "#ifdef PCI" because USB needs to know sizeof() ++** of txdesc and rxdesc: */ ++struct txdesc { ++ acx_ptr pNextDesc; /* pointer to next txdesc */ ++ acx_ptr HostMemPtr; /* 0x04 */ ++ acx_ptr AcxMemPtr; /* 0x08 */ ++ u32 tx_time; /* 0x0c */ ++ u16 total_length; /* 0x10 */ ++ u16 Reserved; /* 0x12 */ ++ ++/* The following 16 bytes do not change when acx100 owns the descriptor */ ++/* BUG: fw clears last byte of this area which is supposedly reserved ++** for driver use. amd64 blew up. We dare not use it now */ ++ u32 dummy[4]; ++ ++ u8 Ctl_8; /* 0x24, 8bit value */ ++ u8 Ctl2_8; /* 0x25, 8bit value */ ++ u8 error; /* 0x26 */ ++ u8 ack_failures; /* 0x27 */ ++ ++ union { ++ /* ++ * Packing doesn't work correctly on ARM unless unions are on ++ * 4 byte boundaries. ++ */ ++ struct { ++ u8 rts_failures; /* 0x28 */ ++ u8 rts_ok; /* 0x29 */ ++ u16 d1; ++ } ACX_PACKED rts; ++ struct { ++ u16 d1; ++ u8 rate; /* 0x2a */ ++ u8 queue_ctrl; /* 0x2b */ ++ } ACX_PACKED r1; ++ struct { ++ u16 d1; ++ u16 rate111; /* 0x2a */ ++ } ACX_PACKED r2; ++ } ACX_PACKED u; ++ u32 queue_info; /* 0x2c (acx100, reserved on acx111) */ ++} ACX_PACKED; /* size : 48 = 0x30 */ ++/* NB: acx111 txdesc structure is 4 byte larger */ ++/* All these 4 extra bytes are reserved. tx alloc code takes them into account */ ++ ++struct rxdesc { ++ acx_ptr pNextDesc; /* 0x00 */ ++ acx_ptr HostMemPtr; /* 0x04 */ ++ acx_ptr ACXMemPtr; /* 0x08 */ ++ u32 rx_time; /* 0x0c */ ++ u16 total_length; /* 0x10 */ ++ u16 WEP_length; /* 0x12 */ ++ u32 WEP_ofs; /* 0x14 */ ++ ++/* the following 16 bytes do not change when acx100 owns the descriptor */ ++ u8 driverWorkspace[16]; /* 0x18 */ ++ ++ u8 Ctl_8; ++ u8 rate; ++ u8 error; ++ u8 SNR; /* Signal-to-Noise Ratio */ ++ u8 RxLevel; ++ u8 queue_ctrl; ++ u16 unknown; ++ u32 unknown2; ++} ACX_PACKED; /* size 52 = 0x34 */ ++ ++#if defined(ACX_PCI) || defined(ACX_MEM) ++ ++/* Register I/O offsets */ ++#define ACX100_EEPROM_ID_OFFSET 0x380 ++ ++/* please add further ACX hardware register definitions only when ++ it turns out you need them in the driver, and please try to use ++ firmware functionality instead, since using direct I/O access instead ++ of letting the firmware do it might confuse the firmware's state ++ machine */ ++ ++/* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION ++** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */ ++enum { ++ IO_ACX_SOFT_RESET = 0, ++ ++ IO_ACX_SLV_MEM_ADDR, ++ IO_ACX_SLV_MEM_DATA, ++ IO_ACX_SLV_MEM_CTL, ++ IO_ACX_SLV_END_CTL, ++ ++ IO_ACX_FEMR, /* Function Event Mask */ ++ ++ IO_ACX_INT_TRIG, ++ IO_ACX_IRQ_MASK, ++ IO_ACX_IRQ_STATUS_NON_DES, ++ IO_ACX_IRQ_STATUS_CLEAR, /* CLEAR = clear on read */ ++ IO_ACX_IRQ_ACK, ++ IO_ACX_HINT_TRIG, ++ ++ IO_ACX_ENABLE, ++ ++ IO_ACX_EEPROM_CTL, ++ IO_ACX_EEPROM_ADDR, ++ IO_ACX_EEPROM_DATA, ++ IO_ACX_EEPROM_CFG, ++ ++ IO_ACX_PHY_ADDR, ++ IO_ACX_PHY_DATA, ++ IO_ACX_PHY_CTL, ++ ++ IO_ACX_GPIO_OE, ++ ++ IO_ACX_GPIO_OUT, ++ ++ IO_ACX_CMD_MAILBOX_OFFS, ++ IO_ACX_INFO_MAILBOX_OFFS, ++ IO_ACX_EEPROM_INFORMATION, ++ ++ IO_ACX_EE_START, ++ IO_ACX_SOR_CFG, ++ IO_ACX_ECPU_CTRL ++}; ++/* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION ++** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */ ++ ++/* Values for IO_ACX_INT_TRIG register: */ ++/* inform hw that rxdesc in queue needs processing */ ++#define INT_TRIG_RXPRC 0x08 ++/* inform hw that txdesc in queue needs processing */ ++#define INT_TRIG_TXPRC 0x04 ++/* ack that we received info from info mailbox */ ++#define INT_TRIG_INFOACK 0x02 ++/* inform hw that we have filled command mailbox */ ++#define INT_TRIG_CMD 0x01 ++ ++struct txhostdesc { ++ acx_ptr data_phy; /* 0x00 [u8 *] */ ++ u16 data_offset; /* 0x04 */ ++ u16 reserved; /* 0x06 */ ++ u16 Ctl_16; /* 16bit value, endianness!! */ ++ u16 length; /* 0x0a */ ++ acx_ptr desc_phy_next; /* 0x0c [txhostdesc *] */ ++ acx_ptr pNext; /* 0x10 [txhostdesc *] */ ++ u32 Status; /* 0x14, unused on Tx */ ++/* From here on you can use this area as you want (variable length, too!) */ ++ u8 *data; ++} ACX_PACKED; ++ ++struct rxhostdesc { ++ acx_ptr data_phy; /* 0x00 [rxbuffer_t *] */ ++ u16 data_offset; /* 0x04 */ ++ u16 reserved; /* 0x06 */ ++ u16 Ctl_16; /* 0x08; 16bit value, endianness!! */ ++ u16 length; /* 0x0a */ ++ acx_ptr desc_phy_next; /* 0x0c [rxhostdesc_t *] */ ++ acx_ptr pNext; /* 0x10 [rxhostdesc_t *] */ ++ u32 Status; /* 0x14 */ ++/* From here on you can use this area as you want (variable length, too!) */ ++ rxbuffer_t *data; ++} ACX_PACKED; ++ ++#endif /* ACX_PCI */ ++ ++/*********************************************************************** ++** USB structures and constants ++*/ ++#ifdef ACX_USB ++ ++/* Used for usb_txbuffer.desc field */ ++#define USB_TXBUF_TXDESC 0xA ++/* Size of header (everything up to data[]) */ ++#define USB_TXBUF_HDRSIZE 14 ++typedef struct usb_txbuffer { ++ u16 desc; ++ u16 mpdu_len; ++ u8 queue_index; ++ u8 rate; ++ u32 hostdata; ++ u8 ctrl1; ++ u8 ctrl2; ++ u16 data_len; ++ /* wlan packet content is placed here: */ ++ u8 data[WLAN_A4FR_MAXLEN_WEP_FCS]; ++} ACX_PACKED usb_txbuffer_t; ++ ++/* USB returns either rx packets (see rxbuffer) or ++** these "tx status" structs: */ ++typedef struct usb_txstatus { ++ u16 mac_cnt_rcvd; /* only 12 bits are len! (0xfff) */ ++ u8 queue_index; ++ u8 mac_status; /* seen 0x20 on tx failure */ ++ u32 hostdata; ++ u8 rate; ++ u8 ack_failures; ++ u8 rts_failures; ++ u8 rts_ok; ++} ACX_PACKED usb_txstatus_t; ++ ++typedef struct usb_tx { ++ unsigned busy:1; ++ struct urb *urb; ++ acx_device_t *adev; ++ /* actual USB bulk output data block is here: */ ++ usb_txbuffer_t bulkout; ++} usb_tx_t; ++ ++struct usb_rx_plain { ++ unsigned busy:1; ++ struct urb *urb; ++ acx_device_t *adev; ++ rxbuffer_t bulkin; ++}; ++ ++typedef struct usb_rx { ++ unsigned busy:1; ++ struct urb *urb; ++ acx_device_t *adev; ++ rxbuffer_t bulkin; ++ /* Make entire structure 4k. Report if it breaks something. */ ++ u8 padding[4*1024 - sizeof(struct usb_rx_plain)]; ++} usb_rx_t; ++#endif /* ACX_USB */ ++ ++ ++/* Config Option structs */ ++ ++typedef struct co_antennas { ++ u8 type; ++ u8 len; ++ u8 list[2]; ++} ACX_PACKED co_antennas_t; ++ ++typedef struct co_powerlevels { ++ u8 type; ++ u8 len; ++ u16 list[8]; ++} ACX_PACKED co_powerlevels_t; ++ ++typedef struct co_datarates { ++ u8 type; ++ u8 len; ++ u8 list[8]; ++} ACX_PACKED co_datarates_t; ++ ++typedef struct co_domains { ++ u8 type; ++ u8 len; ++ u8 list[6]; ++} ACX_PACKED co_domains_t; ++ ++typedef struct co_product_id { ++ u8 type; ++ u8 len; ++ u8 list[128]; ++} ACX_PACKED co_product_id_t; ++ ++typedef struct co_manuf_id { ++ u8 type; ++ u8 len; ++ u8 list[128]; ++} ACX_PACKED co_manuf_t; ++ ++typedef struct co_fixed { ++ char NVSv[8]; ++/* u16 NVS_vendor_offs; ACX111-only */ ++/* u16 unknown; ACX111-only */ ++ u8 MAC[6]; /* ACX100-only */ ++ u16 probe_delay; /* ACX100-only */ ++ u32 eof_memory; ++ u8 dot11CCAModes; ++ u8 dot11Diversity; ++ u8 dot11ShortPreambleOption; ++ u8 dot11PBCCOption; ++ u8 dot11ChannelAgility; ++ u8 dot11PhyType; /* FIXME: does 802.11 call it "dot11PHYType"? */ ++ u8 dot11TempType; ++ u8 table_count; ++} ACX_PACKED co_fixed_t; ++ ++typedef struct acx111_ie_configoption { ++ u16 type; ++ u16 len; ++/* Do not access below members directly, they are in fact variable length */ ++ co_fixed_t fixed; ++ co_antennas_t antennas; ++ co_powerlevels_t power_levels; ++ co_datarates_t data_rates; ++ co_domains_t domains; ++ co_product_id_t product_id; ++ co_manuf_t manufacturer; ++ u8 _padding[4]; ++} ACX_PACKED acx111_ie_configoption_t; ++ ++ ++/*********************************************************************** ++** Main acx per-device data structure ++*/ ++#define ACX_STATE_FW_LOADED 0x01 ++#define ACX_STATE_IFACE_UP 0x02 ++ ++/* MAC mode (BSS type) defines ++ * Note that they shouldn't be redefined, since they are also used ++ * during communication with firmware */ ++#define ACX_MODE_0_ADHOC 0 ++#define ACX_MODE_1_UNUSED 1 ++#define ACX_MODE_2_STA 2 ++#define ACX_MODE_3_AP 3 ++/* These are our own inventions. Sending these to firmware ++** makes it stop emitting beacons, which is exactly what we want ++** for these modes */ ++#define ACX_MODE_MONITOR 0xfe ++#define ACX_MODE_OFF 0xff ++/* 'Submode': identifies exact status of ADHOC/STA host */ ++#define ACX_STATUS_0_STOPPED 0 ++#define ACX_STATUS_1_SCANNING 1 ++#define ACX_STATUS_2_WAIT_AUTH 2 ++#define ACX_STATUS_3_AUTHENTICATED 3 ++#define ACX_STATUS_4_ASSOCIATED 4 ++ ++/* FIXME: this should be named something like struct acx_priv (typedef'd to ++ * acx_priv_t) */ ++ ++/* non-firmware struct, no packing necessary */ ++struct acx_device { ++ /* most frequent accesses first (dereferencing and cache line!) */ ++ ++ /*** Locking ***/ ++ /* FIXME: try to convert semaphore to more efficient mutex according ++ to Ingo Molnar's docs (but not before driver is in mainline or ++ pre-mutex Linux 2.6.10 is very outdated). */ ++ struct semaphore sem; ++ spinlock_t lock; ++#if defined(PARANOID_LOCKING) /* Lock debugging */ ++ const char *last_sem; ++ const char *last_lock; ++ unsigned long sem_time; ++ unsigned long lock_time; ++#endif ++#ifdef ACX_MEM ++ spinlock_t txbuf_lock; ++#endif ++ ++ /*** Linux network device ***/ ++ struct net_device *ndev; /* pointer to linux netdevice */ ++ ++ /*** Device statistics ***/ ++ struct net_device_stats stats; /* net device statistics */ ++#ifdef WIRELESS_EXT ++ struct iw_statistics wstats; /* wireless statistics */ ++#endif ++ /*** Power managment ***/ ++ struct pm_dev *pm; /* PM crap */ ++ ++ /*** Management timer ***/ ++ struct timer_list mgmt_timer; ++ ++ /*** Hardware identification ***/ ++ const char *chip_name; ++ u8 dev_type; ++ u8 chip_type; ++ u8 form_factor; ++ u8 radio_type; ++ u8 eeprom_version; ++ ++ /*** Config retrieved from EEPROM ***/ ++ char cfgopt_NVSv[8]; ++ u16 cfgopt_NVS_vendor_offs; ++ u8 cfgopt_MAC[6]; ++ u16 cfgopt_probe_delay; ++ u32 cfgopt_eof_memory; ++ u8 cfgopt_dot11CCAModes; ++ u8 cfgopt_dot11Diversity; ++ u8 cfgopt_dot11ShortPreambleOption; ++ u8 cfgopt_dot11PBCCOption; ++ u8 cfgopt_dot11ChannelAgility; ++ u8 cfgopt_dot11PhyType; ++ u8 cfgopt_dot11TempType; ++ co_antennas_t cfgopt_antennas; ++ co_powerlevels_t cfgopt_power_levels; ++ co_datarates_t cfgopt_data_rates; ++ co_domains_t cfgopt_domains; ++ co_product_id_t cfgopt_product_id; ++ co_manuf_t cfgopt_manufacturer; ++ ++ /*** Firmware identification ***/ ++ char firmware_version[FW_ID_SIZE+1]; ++ u32 firmware_numver; ++ u32 firmware_id; ++ const u16 *ie_len; ++ const u16 *ie_len_dot11; ++ ++ /*** Device state ***/ ++ u16 dev_state_mask; ++ u8 led_power; /* power LED status */ ++ u32 get_mask; /* mask of settings to fetch from the card */ ++ u32 set_mask; /* mask of settings to write to the card */ ++ ++ /* Barely used in USB case */ ++ u16 irq_status; ++ ++ u8 after_interrupt_jobs; /* mini job list for doing actions after an interrupt occurred */ ++ WORK_STRUCT after_interrupt_task; /* our task for after interrupt actions */ ++ ++ /*** scanning ***/ ++ u16 scan_count; /* number of times to do channel scan */ ++ u8 scan_mode; /* 0 == active, 1 == passive, 2 == background */ ++ u8 scan_rate; ++ u16 scan_duration; ++ u16 scan_probe_delay; ++#if WIRELESS_EXT > 15 ++ struct iw_spy_data spy_data; /* FIXME: needs to be implemented! */ ++#endif ++ ++ /*** Wireless network settings ***/ ++ /* copy of the device address (ifconfig hw ether) that we actually use ++ ** for 802.11; copied over from the network device's MAC address ++ ** (ifconfig) when it makes sense only */ ++ u8 dev_addr[MAX_ADDR_LEN]; ++ u8 bssid[ETH_ALEN]; /* the BSSID after having joined */ ++ u8 ap[ETH_ALEN]; /* The AP we want, FF:FF:FF:FF:FF:FF is any */ ++ u16 aid; /* The Association ID sent from the AP / last used AID if we're an AP */ ++ u16 mode; /* mode from iwconfig */ ++ int monitor_type; /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_PRISM */ ++ u16 status; /* 802.11 association status */ ++ u8 essid_active; /* specific ESSID active, or select any? */ ++ u8 essid_len; /* to avoid dozens of strlen() */ ++ /* INCLUDES \0 termination for easy printf - but many places ++ ** simply want the string data memcpy'd plus a length indicator! ++ ** Keep that in mind... */ ++ char essid[IW_ESSID_MAX_SIZE+1]; ++ /* essid we are going to use for association, in case of "essid 'any'" ++ ** and in case of hidden ESSID (use configured ESSID then) */ ++ char essid_for_assoc[IW_ESSID_MAX_SIZE+1]; ++ char nick[IW_ESSID_MAX_SIZE+1]; /* see essid! */ ++ u8 channel; ++ u8 reg_dom_id; /* reg domain setting */ ++ u16 reg_dom_chanmask; ++ u16 auth_or_assoc_retries; ++ u16 scan_retries; ++ unsigned long scan_start; /* YES, jiffies is defined as "unsigned long" */ ++ ++ /* stations known to us (if we're an ap) */ ++ client_t sta_list[32]; /* tab is larger than list, so that */ ++ client_t *sta_hash_tab[64]; /* hash collisions are not likely */ ++ client_t *ap_client; /* this one is our AP (STA mode only) */ ++ ++ int dup_count; ++ int nondup_count; ++ unsigned long dup_msg_expiry; ++ u16 last_seq_ctrl; /* duplicate packet detection */ ++ ++ /* 802.11 power save mode */ ++ u8 ps_wakeup_cfg; ++ u8 ps_listen_interval; ++ u8 ps_options; ++ u8 ps_hangover_period; ++ u32 ps_enhanced_transition_time; ++ u32 ps_beacon_rx_time; ++ ++ /*** PHY settings ***/ ++ u8 fallback_threshold; ++ u8 stepup_threshold; ++ u16 rate_basic; ++ u16 rate_oper; ++ u16 rate_bcast; ++ u16 rate_bcast100; ++ u8 rate_auto; /* false if "iwconfig rate N" (WITHOUT 'auto'!) */ ++ u8 preamble_mode; /* 0 == Long Preamble, 1 == Short, 2 == Auto */ ++ u8 preamble_cur; ++ ++ u8 tx_disabled; ++ u8 tx_level_dbm; ++ /* u8 tx_level_val; */ ++ /* u8 tx_level_auto; whether to do automatic power adjustment */ ++ ++ unsigned long recalib_time_last_success; ++ unsigned long recalib_time_last_attempt; ++ int recalib_failure_count; ++ int recalib_msg_ratelimit; ++ int retry_errors_msg_ratelimit; ++ ++ unsigned long brange_time_last_state_change; /* time the power LED was last changed */ ++ u8 brange_last_state; /* last state of the LED */ ++ u8 brange_max_quality; /* maximum quality that equates to full speed */ ++ ++ u8 sensitivity; ++ u8 antenna; /* antenna settings */ ++ u8 ed_threshold; /* energy detect threshold */ ++ u8 cca; /* clear channel assessment */ ++ ++ u16 rts_threshold; ++ u16 frag_threshold; ++ u32 short_retry; ++ u32 long_retry; ++ u16 msdu_lifetime; ++ u16 listen_interval; /* given in units of beacon interval */ ++ u32 beacon_interval; ++ ++ u16 capabilities; ++ u8 rate_supported_len; ++ u8 rate_supported[13]; ++ ++ /*** Encryption settings (WEP) ***/ ++ u32 auth_alg; /* used in transmit_authen1 */ ++ u8 wep_enabled; ++ u8 wep_restricted; ++ u8 wep_current_index; ++ wep_key_t wep_keys[DOT11_MAX_DEFAULT_WEP_KEYS]; /* the default WEP keys */ ++ key_struct_t wep_key_struct[10]; ++ ++ /*** Unknown ***/ ++ u8 dtim_interval; ++ ++#ifdef ACX_MEM ++ u32 acx_txbuf_start; ++ int acx_txbuf_numblocks; ++ u32 acx_txbuf_free; /* addr of head of free list */ ++ int acx_txbuf_blocks_free; /* how many are still open */ ++ queueindicator_t *acx_queue_indicator; ++#endif ++ ++ /*** Card Rx/Tx management ***/ ++ u16 rx_config_1; ++ u16 rx_config_2; ++ u16 memblocksize; ++ unsigned int tx_free; ++ unsigned int tx_head; /* keep as close as possible to Tx stuff below (cache line) */ ++ u16 phy_header_len; ++ ++/************************************************************************* ++ *** PCI/USB/... must be last or else hw agnostic code breaks horribly *** ++ *************************************************************************/ ++ ++ /* hack to let common code compile. FIXME */ ++ dma_addr_t rxhostdesc_startphy; ++ ++ /*** PCI stuff ***/ ++#if defined(ACX_PCI) || defined(ACX_MEM) ++ /* pointers to tx buffers, tx host descriptors (in host memory) ++ ** and tx descs in device memory */ ++ unsigned int tx_tail; ++ u8 *txbuf_start; ++ txhostdesc_t *txhostdesc_start; ++ txdesc_t *txdesc_start; /* points to PCI-mapped memory */ ++ dma_addr_t txbuf_startphy; ++ dma_addr_t txhostdesc_startphy; ++ /* sizes of above host memory areas */ ++ unsigned int txbuf_area_size; ++ unsigned int txhostdesc_area_size; ++ ++ unsigned int txdesc_size; /* size of txdesc; ACX111 = ACX100 + 4 */ ++ client_t *txc[TX_CNT]; ++ u16 txr[TX_CNT]; ++ ++ /* same for rx */ ++ unsigned int rx_tail; ++ rxbuffer_t *rxbuf_start; ++ rxhostdesc_t *rxhostdesc_start; ++ rxdesc_t *rxdesc_start; ++ /* physical addresses of above host memory areas */ ++ dma_addr_t rxbuf_startphy; ++ /* dma_addr_t rxhostdesc_startphy; */ ++ unsigned int rxbuf_area_size; ++ unsigned int rxhostdesc_area_size; ++ ++ u8 need_radio_fw; ++ u8 irqs_active; /* whether irq sending is activated */ ++ ++ const u16 *io; /* points to ACX100 or ACX111 PCI I/O register address set */ ++ ++#ifdef ACX_PCI ++ struct pci_dev *pdev; ++#endif ++#ifdef ACX_MEM ++ struct device *dev; ++#endif ++ ++#ifdef ACX_PCI ++ unsigned long membase; ++#endif ++#ifdef ACX_MEM ++ volatile u32 *membase; ++#endif ++ unsigned long membase2; ++#ifdef ACX_PCI ++ void __iomem *iobase; ++#endif ++#ifdef ACX_MEM ++ volatile u32 *iobase; ++#endif ++ void __iomem *iobase2; ++ /* command interface */ ++ u8 __iomem *cmd_area; ++ u8 __iomem *info_area; ++ ++ u16 irq_mask; /* interrupt types to mask out (not wanted) with many IRQs activated */ ++ u16 irq_mask_off; /* interrupt types to mask out (not wanted) with IRQs off */ ++ unsigned int irq_loops_this_jiffy; ++ unsigned long irq_last_jiffies; ++#endif ++ ++ /*** USB stuff ***/ ++#ifdef ACX_USB ++ struct usb_device *usbdev; ++ ++ rxbuffer_t rxtruncbuf; ++ ++ usb_tx_t *usb_tx; ++ usb_rx_t *usb_rx; ++ ++ int bulkinep; /* bulk-in endpoint */ ++ int bulkoutep; /* bulk-out endpoint */ ++ int rxtruncsize; ++#endif ++ ++}; ++ ++static inline acx_device_t* ++ndev2adev(struct net_device *ndev) ++{ ++ return netdev_priv(ndev); ++} ++ ++ ++/* For use with ACX1xx_IE_RXCONFIG */ ++/* bit description ++ * 13 include additional header (length etc.) *required* ++ * struct is defined in 'struct rxbuffer' ++ * is this bit acx100 only? does acx111 always put the header, ++ * and bit setting is irrelevant? --vda ++ * 10 receive frames only with SSID used in last join cmd ++ * 9 discard broadcast ++ * 8 receive packets for multicast address 1 ++ * 7 receive packets for multicast address 0 ++ * 6 discard all multicast packets ++ * 5 discard frames from foreign BSSID ++ * 4 discard frames with foreign destination MAC address ++ * 3 promiscuous mode (receive ALL frames, disable filter) ++ * 2 include FCS ++ * 1 include phy header ++ * 0 ??? ++ */ ++#define RX_CFG1_INCLUDE_RXBUF_HDR 0x2000 /* ACX100 only */ ++#define RX_CFG1_FILTER_SSID 0x0400 ++#define RX_CFG1_FILTER_BCAST 0x0200 ++#define RX_CFG1_RCV_MC_ADDR1 0x0100 ++#define RX_CFG1_RCV_MC_ADDR0 0x0080 ++#define RX_CFG1_FILTER_ALL_MULTI 0x0040 ++#define RX_CFG1_FILTER_BSSID 0x0020 ++#define RX_CFG1_FILTER_MAC 0x0010 ++#define RX_CFG1_RCV_PROMISCUOUS 0x0008 ++#define RX_CFG1_INCLUDE_FCS 0x0004 ++#define RX_CFG1_INCLUDE_PHY_HDR (WANT_PHY_HDR ? 0x0002 : 0) ++/* bit description ++ * 11 receive association requests etc. ++ * 10 receive authentication frames ++ * 9 receive beacon frames ++ * 8 receive contention free packets ++ * 7 receive control frames ++ * 6 receive data frames ++ * 5 receive broken frames ++ * 4 receive management frames ++ * 3 receive probe requests ++ * 2 receive probe responses ++ * 1 receive RTS/CTS/ACK frames ++ * 0 receive other ++ */ ++#define RX_CFG2_RCV_ASSOC_REQ 0x0800 ++#define RX_CFG2_RCV_AUTH_FRAMES 0x0400 ++#define RX_CFG2_RCV_BEACON_FRAMES 0x0200 ++#define RX_CFG2_RCV_CONTENTION_FREE 0x0100 ++#define RX_CFG2_RCV_CTRL_FRAMES 0x0080 ++#define RX_CFG2_RCV_DATA_FRAMES 0x0040 ++#define RX_CFG2_RCV_BROKEN_FRAMES 0x0020 ++#define RX_CFG2_RCV_MGMT_FRAMES 0x0010 ++#define RX_CFG2_RCV_PROBE_REQ 0x0008 ++#define RX_CFG2_RCV_PROBE_RESP 0x0004 ++#define RX_CFG2_RCV_ACK_FRAMES 0x0002 ++#define RX_CFG2_RCV_OTHER 0x0001 ++ ++/* For use with ACX1xx_IE_FEATURE_CONFIG */ ++#define FEATURE1_80MHZ_CLOCK 0x00000040L ++#define FEATURE1_4X 0x00000020L ++#define FEATURE1_LOW_RX 0x00000008L ++#define FEATURE1_EXTRA_LOW_RX 0x00000001L ++ ++#define FEATURE2_SNIFFER 0x00000080L ++#define FEATURE2_NO_TXCRYPT 0x00000001L ++ ++/*-- get and set mask values --*/ ++#define GETSET_LED_POWER 0x00000001L ++#define GETSET_STATION_ID 0x00000002L ++#define SET_TEMPLATES 0x00000004L ++#define SET_STA_LIST 0x00000008L ++#define GETSET_TX 0x00000010L ++#define GETSET_RX 0x00000020L ++#define SET_RXCONFIG 0x00000040L ++#define GETSET_ANTENNA 0x00000080L ++#define GETSET_SENSITIVITY 0x00000100L ++#define GETSET_TXPOWER 0x00000200L ++#define GETSET_ED_THRESH 0x00000400L ++#define GETSET_CCA 0x00000800L ++#define GETSET_POWER_80211 0x00001000L ++#define GETSET_RETRY 0x00002000L ++#define GETSET_REG_DOMAIN 0x00004000L ++#define GETSET_CHANNEL 0x00008000L ++/* Used when ESSID changes etc and we need to scan for AP anew */ ++#define GETSET_RESCAN 0x00010000L ++#define GETSET_MODE 0x00020000L ++#define GETSET_WEP 0x00040000L ++#define SET_WEP_OPTIONS 0x00080000L ++#define SET_MSDU_LIFETIME 0x00100000L ++#define SET_RATE_FALLBACK 0x00200000L ++ ++/* keep in sync with the above */ ++#define GETSET_ALL (0 \ ++/* GETSET_LED_POWER */ | 0x00000001L \ ++/* GETSET_STATION_ID */ | 0x00000002L \ ++/* SET_TEMPLATES */ | 0x00000004L \ ++/* SET_STA_LIST */ | 0x00000008L \ ++/* GETSET_TX */ | 0x00000010L \ ++/* GETSET_RX */ | 0x00000020L \ ++/* SET_RXCONFIG */ | 0x00000040L \ ++/* GETSET_ANTENNA */ | 0x00000080L \ ++/* GETSET_SENSITIVITY */| 0x00000100L \ ++/* GETSET_TXPOWER */ | 0x00000200L \ ++/* GETSET_ED_THRESH */ | 0x00000400L \ ++/* GETSET_CCA */ | 0x00000800L \ ++/* GETSET_POWER_80211 */| 0x00001000L \ ++/* GETSET_RETRY */ | 0x00002000L \ ++/* GETSET_REG_DOMAIN */ | 0x00004000L \ ++/* GETSET_CHANNEL */ | 0x00008000L \ ++/* GETSET_RESCAN */ | 0x00010000L \ ++/* GETSET_MODE */ | 0x00020000L \ ++/* GETSET_WEP */ | 0x00040000L \ ++/* SET_WEP_OPTIONS */ | 0x00080000L \ ++/* SET_MSDU_LIFETIME */ | 0x00100000L \ ++/* SET_RATE_FALLBACK */ | 0x00200000L \ ++ ) ++ ++ ++/*********************************************************************** ++** Firmware loading ++*/ ++#include <linux/firmware.h> /* request_firmware() */ ++#include <linux/pci.h> /* struct pci_device */ ++ ++ ++/*********************************************************************** ++*/ ++typedef struct acx100_ie_memblocksize { ++ u16 type; ++ u16 len; ++ u16 size; ++} ACX_PACKED acx100_ie_memblocksize_t; ++ ++typedef struct acx100_ie_queueconfig { ++ u16 type; ++ u16 len; ++ u32 AreaSize; ++ u32 RxQueueStart; ++ u8 QueueOptions; ++ u8 NumTxQueues; ++ u8 NumRxDesc; /* for USB only */ ++ u8 pad1; ++ u32 QueueEnd; ++ u32 HostQueueEnd; /* QueueEnd2 */ ++ u32 TxQueueStart; ++ u8 TxQueuePri; ++ u8 NumTxDesc; ++ u16 pad2; ++} ACX_PACKED acx100_ie_queueconfig_t; ++ ++typedef struct acx111_ie_queueconfig { ++ u16 type; ++ u16 len; ++ u32 tx_memory_block_address; ++ u32 rx_memory_block_address; ++ u32 rx1_queue_address; ++ u32 reserved1; ++ u32 tx1_queue_address; ++ u8 tx1_attributes; ++ u16 reserved2; ++ u8 reserved3; ++} ACX_PACKED acx111_ie_queueconfig_t; ++ ++typedef struct acx100_ie_memconfigoption { ++ u16 type; ++ u16 len; ++ u32 DMA_config; ++ acx_ptr pRxHostDesc; ++ u32 rx_mem; ++ u32 tx_mem; ++ u16 RxBlockNum; ++ u16 TxBlockNum; ++} ACX_PACKED acx100_ie_memconfigoption_t; ++ ++typedef struct acx111_ie_memoryconfig { ++ u16 type; ++ u16 len; ++ u16 no_of_stations; ++ u16 memory_block_size; ++ u8 tx_rx_memory_block_allocation; ++ u8 count_rx_queues; ++ u8 count_tx_queues; ++ u8 options; ++ u8 fragmentation; ++ u16 reserved1; ++ u8 reserved2; ++ ++ /* start of rx1 block */ ++ u8 rx_queue1_count_descs; ++ u8 rx_queue1_reserved1; ++ u8 rx_queue1_type; /* must be set to 7 */ ++ u8 rx_queue1_prio; /* must be set to 0 */ ++ acx_ptr rx_queue1_host_rx_start; ++ /* end of rx1 block */ ++ ++ /* start of tx1 block */ ++ u8 tx_queue1_count_descs; ++ u8 tx_queue1_reserved1; ++ u8 tx_queue1_reserved2; ++ u8 tx_queue1_attributes; ++ /* end of tx1 block */ ++} ACX_PACKED acx111_ie_memoryconfig_t; ++ ++typedef struct acx_ie_memmap { ++ u16 type; ++ u16 len; ++ u32 CodeStart; ++ u32 CodeEnd; ++ u32 WEPCacheStart; ++ u32 WEPCacheEnd; ++ u32 PacketTemplateStart; ++ u32 PacketTemplateEnd; ++ u32 QueueStart; ++ u32 QueueEnd; ++ u32 PoolStart; ++ u32 PoolEnd; ++} ACX_PACKED acx_ie_memmap_t; ++ ++typedef struct acx111_ie_feature_config { ++ u16 type; ++ u16 len; ++ u32 feature_options; ++ u32 data_flow_options; ++} ACX_PACKED acx111_ie_feature_config_t; ++ ++typedef struct acx111_ie_tx_level { ++ u16 type; ++ u16 len; ++ u8 level; ++} ACX_PACKED acx111_ie_tx_level_t; ++ ++#define PS_CFG_ENABLE 0x80 ++#define PS_CFG_PENDING 0x40 /* status flag when entering PS */ ++#define PS_CFG_WAKEUP_MODE_MASK 0x07 ++#define PS_CFG_WAKEUP_BY_HOST 0x03 ++#define PS_CFG_WAKEUP_EACH_ITVL 0x02 ++#define PS_CFG_WAKEUP_ON_DTIM 0x01 ++#define PS_CFG_WAKEUP_ALL_BEAC 0x00 ++ ++/* Enhanced PS mode: sleep until Rx Beacon w/ the STA's AID bit set ++** in the TIM; newer firmwares only(?) */ ++#define PS_OPT_ENA_ENHANCED_PS 0x04 ++#define PS_OPT_TX_PSPOLL 0x02 /* send PSPoll frame to fetch waiting frames from AP (on frame with matching AID) */ ++#define PS_OPT_STILL_RCV_BCASTS 0x01 ++ ++typedef struct acx100_ie_powersave { ++ u16 type; ++ u16 len; ++ u8 wakeup_cfg; ++ u8 listen_interval; /* for EACH_ITVL: wake up every "beacon units" interval */ ++ u8 options; ++ u8 hangover_period; /* remaining wake time after Tx MPDU w/ PS bit, in values of 1/1024 seconds */ ++ u16 enhanced_ps_transition_time; /* rem. wake time for Enh. PS */ ++} ACX_PACKED acx100_ie_powersave_t; ++ ++typedef struct acx111_ie_powersave { ++ u16 type; ++ u16 len; ++ u8 wakeup_cfg; ++ u8 listen_interval; /* for EACH_ITVL: wake up every "beacon units" interval */ ++ u8 options; ++ u8 hangover_period; /* remaining wake time after Tx MPDU w/ PS bit, in values of 1/1024 seconds */ ++ u32 beacon_rx_time; ++ u32 enhanced_ps_transition_time; /* rem. wake time for Enh. PS */ ++} ACX_PACKED acx111_ie_powersave_t; ++ ++ ++/*********************************************************************** ++** Commands and template structures ++*/ ++ ++/* ++** SCAN command structure ++** ++** even though acx100 scan rates match RATE100 constants, ++** acx111 ones do not match! Therefore we do not use RATE100 #defines */ ++#define ACX_SCAN_RATE_1 10 ++#define ACX_SCAN_RATE_2 20 ++#define ACX_SCAN_RATE_5 55 ++#define ACX_SCAN_RATE_11 110 ++#define ACX_SCAN_RATE_22 220 ++#define ACX_SCAN_RATE_PBCC 0x80 /* OR with this if needed */ ++#define ACX_SCAN_OPT_ACTIVE 0x00 /* a bit mask */ ++#define ACX_SCAN_OPT_PASSIVE 0x01 ++/* Background scan: we go into Power Save mode (by transmitting ++** NULL data frame to AP with the power mgmt bit set), do the scan, ++** and then exit Power Save mode. A plus is that AP buffers frames ++** for us while we do background scan. Thus we avoid frame losses. ++** Background scan can be active or passive, just like normal one */ ++#define ACX_SCAN_OPT_BACKGROUND 0x02 ++typedef struct acx100_scan { ++ u16 count; /* number of scans to do, 0xffff == continuous */ ++ u16 start_chan; ++ u16 flags; /* channel list mask; 0x8000 == all channels? */ ++ u8 max_rate; /* max. probe rate */ ++ u8 options; /* bit mask, see defines above */ ++ u16 chan_duration; ++ u16 max_probe_delay; ++} ACX_PACKED acx100_scan_t; /* length 0xc */ ++ ++#define ACX111_SCAN_RATE_6 0x0B ++#define ACX111_SCAN_RATE_9 0x0F ++#define ACX111_SCAN_RATE_12 0x0A ++#define ACX111_SCAN_RATE_18 0x0E ++#define ACX111_SCAN_RATE_24 0x09 ++#define ACX111_SCAN_RATE_36 0x0D ++#define ACX111_SCAN_RATE_48 0x08 ++#define ACX111_SCAN_RATE_54 0x0C ++#define ACX111_SCAN_OPT_5GHZ 0x04 /* else 2.4GHZ */ ++#define ACX111_SCAN_MOD_SHORTPRE 0x01 /* you can combine SHORTPRE and PBCC */ ++#define ACX111_SCAN_MOD_PBCC 0x80 ++#define ACX111_SCAN_MOD_OFDM 0x40 ++typedef struct acx111_scan { ++ u16 count; /* number of scans to do */ ++ u8 channel_list_select; /* 0: scan all channels, 1: from chan_list only */ ++ u16 reserved1; ++ u8 reserved2; ++ u8 rate; /* rate for probe requests (if active scan) */ ++ u8 options; /* bit mask, see defines above */ ++ u16 chan_duration; /* min time to wait for reply on one channel (in TU) */ ++ /* (active scan only) (802.11 section 11.1.3.2.2) */ ++ u16 max_probe_delay; /* max time to wait for reply on one channel (active scan) */ ++ /* time to listen on a channel (passive scan) */ ++ u8 modulation; ++ u8 channel_list[26]; /* bits 7:0 first byte: channels 8:1 */ ++ /* bits 7:0 second byte: channels 16:9 */ ++ /* 26 bytes is enough to cover 802.11a */ ++} ACX_PACKED acx111_scan_t; ++ ++ ++/* ++** Radio calibration command structure ++*/ ++typedef struct acx111_cmd_radiocalib { ++/* 0x80000000 == automatic calibration by firmware, according to interval; ++ * bits 0..3: select calibration methods to go through: ++ * calib based on DC, AfeDC, Tx mismatch, Tx equilization */ ++ u32 methods; ++ u32 interval; ++} ACX_PACKED acx111_cmd_radiocalib_t; ++ ++ ++/* ++** Packet template structures ++** ++** Packet templates store contents of Beacon, Probe response, Probe request, ++** Null data frame, and TIM data frame. Firmware automatically transmits ++** contents of template at appropriate time: ++** - Beacon: when configured as AP or Ad-hoc ++** - Probe response: when configured as AP or Ad-hoc, whenever ++** a Probe request frame is received ++** - Probe request: when host issues SCAN command (active) ++** - Null data frame: when entering 802.11 power save mode ++** - TIM data: at the end of Beacon frames (if no TIM template ++** is configured, then transmits default TIM) ++** NB: ++** - size field must be set to size of actual template ++** (NOT sizeof(struct) - templates are variable in length), ++** size field is not itself counted. ++** - members flagged with an asterisk must be initialized with host, ++** rest must be zero filled. ++** - variable length fields shown only in comments */ ++typedef struct acx_template_tim { ++ u16 size; ++ u8 tim_eid; /* 00 1 TIM IE ID * */ ++ u8 len; /* 01 1 Length * */ ++ u8 dtim_cnt; /* 02 1 DTIM Count */ ++ u8 dtim_period; /* 03 1 DTIM Period */ ++ u8 bitmap_ctrl; /* 04 1 Bitmap Control * (except bit0) */ ++ /* 05 n Partial Virtual Bitmap * */ ++ u8 variable[0x100 - 1-1-1-1-1]; ++} ACX_PACKED acx_template_tim_t; ++ ++typedef struct acx_template_probereq { ++ u16 size; ++ u16 fc; /* 00 2 fc * */ ++ u16 dur; /* 02 2 Duration */ ++ u8 da[6]; /* 04 6 Destination Address * */ ++ u8 sa[6]; /* 0A 6 Source Address * */ ++ u8 bssid[6]; /* 10 6 BSSID * */ ++ u16 seq; /* 16 2 Sequence Control */ ++ /* 18 n SSID * */ ++ /* nn n Supported Rates * */ ++ u8 variable[0x44 - 2-2-6-6-6-2]; ++} ACX_PACKED acx_template_probereq_t; ++ ++typedef struct acx_template_proberesp { ++ u16 size; ++ u16 fc; /* 00 2 fc * (bits [15:12] and [10:8] per 802.11 section 7.1.3.1) */ ++ u16 dur; /* 02 2 Duration */ ++ u8 da[6]; /* 04 6 Destination Address */ ++ u8 sa[6]; /* 0A 6 Source Address */ ++ u8 bssid[6]; /* 10 6 BSSID */ ++ u16 seq; /* 16 2 Sequence Control */ ++ u8 timestamp[8];/* 18 8 Timestamp */ ++ u16 beacon_interval; /* 20 2 Beacon Interval * */ ++ u16 cap; /* 22 2 Capability Information * */ ++ /* 24 n SSID * */ ++ /* nn n Supported Rates * */ ++ /* nn 1 DS Parameter Set * */ ++ u8 variable[0x54 - 2-2-6-6-6-2-8-2-2]; ++} ACX_PACKED acx_template_proberesp_t; ++#define acx_template_beacon_t acx_template_proberesp_t ++#define acx_template_beacon acx_template_proberesp ++ ++typedef struct acx_template_nullframe { ++ u16 size; ++ struct wlan_hdr_a3 hdr; ++} ACX_PACKED acx_template_nullframe_t; ++ ++ ++/* ++** JOIN command structure ++** ++** as opposed to acx100, acx111 dtim interval is AFTER rates_basic111. ++** NOTE: took me about an hour to get !@#$%^& packing right --> struct packing is eeeeevil... */ ++typedef struct acx_joinbss { ++ u8 bssid[ETH_ALEN]; ++ u16 beacon_interval; ++ union { ++ struct { ++ u8 dtim_interval; ++ u8 rates_basic; ++ u8 rates_supported; ++ /* ++ * ARM compiler doesn't pack correctly unless unions ++ * inside structures are multiples of 4 bytes. Ugh. ++ */ ++ u8 genfrm_txrate; /* generated frame (bcn, proberesp, RTS, PSpoll) tx rate */ ++ } ACX_PACKED acx100; ++ struct { ++ u16 rates_basic; ++ u8 dtim_interval; ++ u8 genfrm_txrate; /* generated frame (bcn, proberesp, RTS, PSpoll) tx rate */ ++ } ACX_PACKED acx111; ++ /* ++ * ARM compiler doesn't pack correctly unles unions are aligned on ++ * 4 byte boundaries and are multiples of 4 bytes. ++ */ ++ struct { ++ u8 d1; ++ u8 d2; ++ u8 d3; ++ u8 genfrm_txrate; ++ } ACX_PACKED txrate; ++ } ACX_PACKED u; ++ u8 genfrm_mod_pre; /* generated frame modulation/preamble: ++ ** bit7: PBCC, bit6: OFDM (else CCK/DQPSK/DBPSK) ++ ** bit5: short pre */ ++ u8 macmode; /* BSS Type, must be one of ACX_MODE_xxx */ ++ u8 channel; ++ u8 essid_len; ++ char essid[IW_ESSID_MAX_SIZE]; ++} ACX_PACKED acx_joinbss_t; ++ ++#define JOINBSS_RATES_1 0x01 ++#define JOINBSS_RATES_2 0x02 ++#define JOINBSS_RATES_5 0x04 ++#define JOINBSS_RATES_11 0x08 ++#define JOINBSS_RATES_22 0x10 ++ ++/* Looks like missing bits are used to indicate 11g rates! ++** (it follows from the fact that constants below match 1:1 to RATE111_nn) ++** This was actually seen! Look at that Assoc Request sent by acx111, ++** it _does_ contain 11g rates in basic set: ++01:30:20.070772 Beacon (xxx) [1.0* 2.0* 5.5* 11.0* 6.0* 9.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit] ESS CH: 1 ++01:30:20.074425 Authentication (Open System)-1: Succesful ++01:30:20.076539 Authentication (Open System)-2: ++01:30:20.076620 Acknowledgment ++01:30:20.088546 Assoc Request (xxx) [1.0* 2.0* 5.5* 6.0* 9.0* 11.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit] ++01:30:20.122413 Assoc Response AID(1) :: Succesful ++01:30:20.122679 Acknowledgment ++01:30:20.173204 Beacon (xxx) [1.0* 2.0* 5.5* 11.0* 6.0* 9.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit] ESS CH: 1 ++*/ ++#define JOINBSS_RATES_BASIC111_1 0x0001 ++#define JOINBSS_RATES_BASIC111_2 0x0002 ++#define JOINBSS_RATES_BASIC111_5 0x0004 ++#define JOINBSS_RATES_BASIC111_11 0x0020 ++#define JOINBSS_RATES_BASIC111_22 0x0100 ++ ++ ++/*********************************************************************** ++*/ ++typedef struct mem_read_write { ++ u16 addr; ++ u16 type; /* 0x0 int. RAM / 0xffff MAC reg. / 0x81 PHY RAM / 0x82 PHY reg.; or maybe it's actually 0x30 for MAC? Better verify it by writing and reading back and checking whether the value holds! */ ++ u32 len; ++ u32 data; ++} ACX_PACKED mem_read_write_t; ++ ++typedef struct firmware_image { ++ u32 chksum; ++ u32 size; ++ u8 data[1]; /* the byte array of the actual firmware... */ ++} ACX_PACKED firmware_image_t; ++ ++typedef struct acx_cmd_radioinit { ++ u32 offset; ++ u32 len; ++} ACX_PACKED acx_cmd_radioinit_t; ++ ++typedef struct acx100_ie_wep_options { ++ u16 type; ++ u16 len; ++ u16 NumKeys; /* max # of keys */ ++ u8 WEPOption; /* 0 == decrypt default key only, 1 == override decrypt */ ++ u8 Pad; /* used only for acx111 */ ++} ACX_PACKED acx100_ie_wep_options_t; ++ ++typedef struct ie_dot11WEPDefaultKey { ++ u16 type; ++ u16 len; ++ u8 action; ++ u8 keySize; ++ u8 defaultKeyNum; ++ u8 key[29]; /* check this! was Key[19] */ ++} ACX_PACKED ie_dot11WEPDefaultKey_t; ++ ++typedef struct acx111WEPDefaultKey { ++ u8 MacAddr[ETH_ALEN]; ++ u16 action; /* NOTE: this is a u16, NOT a u8!! */ ++ u16 reserved; ++ u8 keySize; ++ u8 type; ++ u8 index; ++ u8 defaultKeyNum; ++ u8 counter[6]; ++ u8 key[32]; /* up to 32 bytes (for TKIP!) */ ++} ACX_PACKED acx111WEPDefaultKey_t; ++ ++typedef struct ie_dot11WEPDefaultKeyID { ++ u16 type; ++ u16 len; ++ u8 KeyID; ++} ACX_PACKED ie_dot11WEPDefaultKeyID_t; ++ ++typedef struct acx100_cmd_wep_mgmt { ++ u8 MacAddr[ETH_ALEN]; ++ u16 Action; ++ u16 KeySize; ++ u8 Key[29]; /* 29*8 == 232bits == WEP256 */ ++} ACX_PACKED acx100_cmd_wep_mgmt_t; ++ ++typedef struct acx_ie_generic { ++ u16 type; ++ u16 len; ++ union { ++ /* Association ID IE: just a 16bit value: */ ++ u16 aid; ++ /* generic member for quick implementation of commands */ ++ u8 bytes[32]; ++ } ACX_PACKED m; ++} ACX_PACKED acx_ie_generic_t; ++ ++/*********************************************************************** ++*/ ++#define CHECK_SIZEOF(type,size) { \ ++ extern void BUG_bad_size_for_##type(void); \ ++ if (sizeof(type)!=(size)) BUG_bad_size_for_##type(); \ ++} ++ ++static inline void ++acx_struct_size_check(void) ++{ ++ CHECK_SIZEOF(txdesc_t, 0x30); ++ CHECK_SIZEOF(acx100_ie_memconfigoption_t, 24); ++ CHECK_SIZEOF(acx100_ie_queueconfig_t, 0x20); ++ CHECK_SIZEOF(acx_joinbss_t, 0x30); ++ /* IEs need 4 bytes for (type,len) tuple */ ++ CHECK_SIZEOF(acx111_ie_configoption_t, ACX111_IE_CONFIG_OPTIONS_LEN + 4); ++} ++ ++ ++/*********************************************************************** ++** Global data ++*/ ++extern const u8 acx_bitpos2ratebyte[]; ++extern const u8 acx_bitpos2rate100[]; ++ ++extern const u8 acx_reg_domain_ids[]; ++extern const char * const acx_reg_domain_strings[]; ++enum { ++ acx_reg_domain_ids_len = 8 ++}; ++ ++extern const struct iw_handler_def acx_ioctl_handler_def; +Index: linux-2.6.23/drivers/net/wireless/acx/common.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/common.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,7388 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++#include <linux/version.h> ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) ++#include <linux/config.h> ++#endif ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/types.h> ++#include <linux/slab.h> ++#include <linux/delay.h> ++#include <linux/proc_fs.h> ++#include <linux/if_arp.h> ++#include <linux/rtnetlink.h> ++#include <linux/netdevice.h> ++#include <linux/etherdevice.h> ++#include <linux/wireless.h> ++#include <linux/pm.h> ++#include <linux/vmalloc.h> ++#include <net/iw_handler.h> ++ ++#include "acx_hw.h" ++#include "acx.h" ++ ++ ++/*********************************************************************** ++*/ ++static client_t *acx_l_sta_list_alloc(acx_device_t *adev); ++static client_t *acx_l_sta_list_get_from_hash(acx_device_t *adev, const u8 *address); ++ ++static int acx_l_process_data_frame_master(acx_device_t *adev, rxbuffer_t *rxbuf); ++static int acx_l_process_data_frame_client(acx_device_t *adev, rxbuffer_t *rxbuf); ++/* static int acx_l_process_NULL_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala); */ ++static int acx_l_process_mgmt_frame(acx_device_t *adev, rxbuffer_t *rxbuf); ++static void acx_l_process_disassoc_from_sta(acx_device_t *adev, const wlan_fr_disassoc_t *req); ++static void acx_l_process_disassoc_from_ap(acx_device_t *adev, const wlan_fr_disassoc_t *req); ++static void acx_l_process_deauth_from_sta(acx_device_t *adev, const wlan_fr_deauthen_t *req); ++static void acx_l_process_deauth_from_ap(acx_device_t *adev, const wlan_fr_deauthen_t *req); ++static int acx_l_process_probe_response(acx_device_t *adev, wlan_fr_proberesp_t *req, const rxbuffer_t *rxbuf); ++static int acx_l_process_assocresp(acx_device_t *adev, const wlan_fr_assocresp_t *req); ++static int acx_l_process_reassocresp(acx_device_t *adev, const wlan_fr_reassocresp_t *req); ++static int acx_l_process_authen(acx_device_t *adev, const wlan_fr_authen_t *req); ++static int acx_l_transmit_assocresp(acx_device_t *adev, const wlan_fr_assocreq_t *req); ++static int acx_l_transmit_reassocresp(acx_device_t *adev, const wlan_fr_reassocreq_t *req); ++static int acx_l_transmit_deauthen(acx_device_t *adev, const u8 *addr, u16 reason); ++static int acx_l_transmit_authen1(acx_device_t *adev); ++static int acx_l_transmit_authen2(acx_device_t *adev, const wlan_fr_authen_t *req, client_t *clt); ++static int acx_l_transmit_authen3(acx_device_t *adev, const wlan_fr_authen_t *req); ++static int acx_l_transmit_authen4(acx_device_t *adev, const wlan_fr_authen_t *req); ++static int acx_l_transmit_assoc_req(acx_device_t *adev); ++ ++ ++/*********************************************************************** ++*/ ++#if ACX_DEBUG ++unsigned int acx_debug /* will add __read_mostly later */ = ACX_DEFAULT_MSG; ++/* parameter is 'debug', corresponding var is acx_debug */ ++module_param_named(debug, acx_debug, uint, 0); ++MODULE_PARM_DESC(debug, "Debug level mask (see L_xxx constants)"); ++#endif ++ ++#ifdef MODULE_LICENSE ++MODULE_LICENSE("Dual MPL/GPL"); ++#endif ++/* USB had this: MODULE_AUTHOR("Martin Wawro <martin.wawro AT uni-dortmund.de>"); */ ++MODULE_AUTHOR("ACX100 Open Source Driver development team"); ++MODULE_DESCRIPTION("Driver for TI ACX1xx based wireless cards (CardBus/PCI/USB)"); ++ ++ ++/*********************************************************************** ++*/ ++/* Probably a number of acx's intermediate buffers for USB transfers, ++** not to be confused with number of descriptors in tx/rx rings ++** (which are not directly accessible to host in USB devices) */ ++#define USB_RX_CNT 10 ++#define USB_TX_CNT 10 ++ ++ ++/*********************************************************************** ++*/ ++ ++/* minutes to wait until next radio recalibration: */ ++#define RECALIB_PAUSE 5 ++ ++/* Please keep acx_reg_domain_ids_len in sync... */ ++const u8 acx_reg_domain_ids[acx_reg_domain_ids_len] = ++ { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40, 0x41, 0x51 }; ++static const u16 reg_domain_channel_masks[acx_reg_domain_ids_len] = ++#ifdef ACX_ALLOW_ALLCHANNELS ++ { 0x3fff, 0x07ff, 0x1fff, 0x0600, 0x1e00, 0x2000, 0x3fff, 0x01fc }; ++#else ++ { 0x07ff, 0x07ff, 0x1fff, 0x0600, 0x1e00, 0x2000, 0x3fff, 0x01fc }; ++#endif ++const char * const ++acx_reg_domain_strings[] = { ++ /* 0 */ " 1-11 FCC (USA)", ++ /* 1 */ " 1-11 DOC/IC (Canada)", ++/* BTW: WLAN use in ETSI is regulated by ETSI standard EN 300 328-2 V1.1.2 */ ++ /* 2 */ " 1-13 ETSI (Europe)", ++ /* 3 */ "10-11 Spain", ++ /* 4 */ "10-13 France", ++ /* 5 */ " 14 MKK (Japan)", ++ /* 6 */ " 1-14 MKK1", ++ /* 7 */ " 3-9 Israel (not all firmware versions)", ++ NULL /* needs to remain as last entry */ ++}; ++ ++ ++ ++/*********************************************************************** ++** Debugging support ++*/ ++#ifdef PARANOID_LOCKING ++static unsigned max_lock_time; ++static unsigned max_sem_time; ++ ++void ++acx_lock_unhold() { max_lock_time = 0; } ++void ++acx_sem_unhold() { max_sem_time = 0; } ++ ++static inline const char* ++sanitize_str(const char *s) ++{ ++ const char* t = strrchr(s, '/'); ++ if (t) return t + 1; ++ return s; ++} ++ ++void ++acx_lock_debug(acx_device_t *adev, const char* where) ++{ ++ unsigned int count = 100*1000*1000; ++ where = sanitize_str(where); ++ while (--count) { ++ if (!spin_is_locked(&adev->lock)) break; ++ cpu_relax(); ++ } ++ if (!count) { ++ printk(KERN_EMERG "LOCKUP: already taken at %s!\n", adev->last_lock); ++ BUG(); ++ } ++ adev->last_lock = where; ++ rdtscl(adev->lock_time); ++} ++void ++acx_unlock_debug(acx_device_t *adev, const char* where) ++{ ++#ifdef SMP ++ if (!spin_is_locked(&adev->lock)) { ++ where = sanitize_str(where); ++ printk(KERN_EMERG "STRAY UNLOCK at %s!\n", where); ++ BUG(); ++ } ++#endif ++ if (acx_debug & L_LOCK) { ++ unsigned long diff; ++ rdtscl(diff); ++ diff -= adev->lock_time; ++ if (diff > max_lock_time) { ++ where = sanitize_str(where); ++ printk("max lock hold time %ld CPU ticks from %s " ++ "to %s\n", diff, adev->last_lock, where); ++ max_lock_time = diff; ++ } ++ } ++} ++void ++acx_down_debug(acx_device_t *adev, const char* where) ++{ ++ int sem_count; ++ unsigned long timeout = jiffies + 5*HZ; ++ ++ where = sanitize_str(where); ++ ++ for (;;) { ++ sem_count = atomic_read(&adev->sem.count); ++ if (sem_count) break; ++ if (time_after(jiffies, timeout)) ++ break; ++ msleep(5); ++ } ++ if (!sem_count) { ++ printk(KERN_EMERG "D STATE at %s! last sem at %s\n", ++ where, adev->last_sem); ++ dump_stack(); ++ } ++ adev->last_sem = where; ++ adev->sem_time = jiffies; ++ down(&adev->sem); ++ if (acx_debug & L_LOCK) { ++ printk("%s: sem_down %d -> %d\n", ++ where, sem_count, atomic_read(&adev->sem.count)); ++ } ++} ++void ++acx_up_debug(acx_device_t *adev, const char* where) ++{ ++ int sem_count = atomic_read(&adev->sem.count); ++ if (sem_count) { ++ where = sanitize_str(where); ++ printk(KERN_EMERG "STRAY UP at %s! sem.count=%d\n", where, sem_count); ++ dump_stack(); ++ } ++ if (acx_debug & L_LOCK) { ++ unsigned long diff = jiffies - adev->sem_time; ++ if (diff > max_sem_time) { ++ where = sanitize_str(where); ++ printk("max sem hold time %ld jiffies from %s " ++ "to %s\n", diff, adev->last_sem, where); ++ max_sem_time = diff; ++ } ++ } ++ up(&adev->sem); ++ if (acx_debug & L_LOCK) { ++ where = sanitize_str(where); ++ printk("%s: sem_up %d -> %d\n", ++ where, sem_count, atomic_read(&adev->sem.count)); ++ } ++} ++#endif /* PARANOID_LOCKING */ ++ ++ ++/*********************************************************************** ++*/ ++#if ACX_DEBUG > 1 ++ ++static int acx_debug_func_indent; ++#define DEBUG_TSC 0 ++#define FUNC_INDENT_INCREMENT 2 ++ ++#if DEBUG_TSC ++#define TIMESTAMP(d) unsigned long d; rdtscl(d) ++#else ++#define TIMESTAMP(d) unsigned long d = jiffies ++#endif ++ ++static const char ++spaces[] = " " " "; /* Nx10 spaces */ ++ ++void ++log_fn_enter(const char *funcname) ++{ ++ int indent; ++ TIMESTAMP(d); ++ ++ indent = acx_debug_func_indent; ++ if (indent >= sizeof(spaces)) ++ indent = sizeof(spaces)-1; ++ ++ printk("%08ld %s==> %s\n", ++ d % 100000000, ++ spaces + (sizeof(spaces)-1) - indent, ++ funcname ++ ); ++ ++ acx_debug_func_indent += FUNC_INDENT_INCREMENT; ++} ++void ++log_fn_exit(const char *funcname) ++{ ++ int indent; ++ TIMESTAMP(d); ++ ++ acx_debug_func_indent -= FUNC_INDENT_INCREMENT; ++ ++ indent = acx_debug_func_indent; ++ if (indent >= sizeof(spaces)) ++ indent = sizeof(spaces)-1; ++ ++ printk("%08ld %s<== %s\n", ++ d % 100000000, ++ spaces + (sizeof(spaces)-1) - indent, ++ funcname ++ ); ++} ++void ++log_fn_exit_v(const char *funcname, int v) ++{ ++ int indent; ++ TIMESTAMP(d); ++ ++ acx_debug_func_indent -= FUNC_INDENT_INCREMENT; ++ ++ indent = acx_debug_func_indent; ++ if (indent >= sizeof(spaces)) ++ indent = sizeof(spaces)-1; ++ ++ printk("%08ld %s<== %s: %08X\n", ++ d % 100000000, ++ spaces + (sizeof(spaces)-1) - indent, ++ funcname, ++ v ++ ); ++} ++#endif /* ACX_DEBUG > 1 */ ++ ++ ++/*********************************************************************** ++** Basically a msleep with logging ++*/ ++void ++acx_s_msleep(int ms) ++{ ++ FN_ENTER; ++ msleep(ms); ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** Not inlined: it's larger than it seems ++*/ ++void ++acx_print_mac(const char *head, const u8 *mac, const char *tail) ++{ ++ printk("%s"MACSTR"%s", head, MAC(mac), tail); ++} ++ ++ ++/*********************************************************************** ++** acx_get_status_name ++*/ ++static const char* ++acx_get_status_name(u16 status) ++{ ++ static const char * const str[] = { ++ "STOPPED", "SCANNING", "WAIT_AUTH", ++ "AUTHENTICATED", "ASSOCIATED", "INVALID??" ++ }; ++ if (status > VEC_SIZE(str)-1) ++ status = VEC_SIZE(str)-1; ++ ++ return str[status]; ++} ++ ++ ++/*********************************************************************** ++** acx_get_packet_type_string ++*/ ++#if ACX_DEBUG ++const char* ++acx_get_packet_type_string(u16 fc) ++{ ++ static const char * const mgmt_arr[] = { ++ "MGMT/AssocReq", "MGMT/AssocResp", "MGMT/ReassocReq", ++ "MGMT/ReassocResp", "MGMT/ProbeReq", "MGMT/ProbeResp", ++ "MGMT/UNKNOWN", "MGMT/UNKNOWN", "MGMT/Beacon", "MGMT/ATIM", ++ "MGMT/Disassoc", "MGMT/Authen", "MGMT/Deauthen" ++ }; ++ static const char * const ctl_arr[] = { ++ "CTL/PSPoll", "CTL/RTS", "CTL/CTS", "CTL/Ack", "CTL/CFEnd", ++ "CTL/CFEndCFAck" ++ }; ++ static const char * const data_arr[] = { ++ "DATA/DataOnly", "DATA/Data CFAck", "DATA/Data CFPoll", ++ "DATA/Data CFAck/CFPoll", "DATA/Null", "DATA/CFAck", ++ "DATA/CFPoll", "DATA/CFAck/CFPoll" ++ }; ++ const char *str; ++ u8 fstype = (WF_FC_FSTYPE & fc) >> 4; ++ u8 ctl; ++ ++ switch (WF_FC_FTYPE & fc) { ++ case WF_FTYPE_MGMT: ++ if (fstype < VEC_SIZE(mgmt_arr)) ++ str = mgmt_arr[fstype]; ++ else ++ str = "MGMT/UNKNOWN"; ++ break; ++ case WF_FTYPE_CTL: ++ ctl = fstype - 0x0a; ++ if (ctl < VEC_SIZE(ctl_arr)) ++ str = ctl_arr[ctl]; ++ else ++ str = "CTL/UNKNOWN"; ++ break; ++ case WF_FTYPE_DATA: ++ if (fstype < VEC_SIZE(data_arr)) ++ str = data_arr[fstype]; ++ else ++ str = "DATA/UNKNOWN"; ++ break; ++ default: ++ str = "UNKNOWN"; ++ break; ++ } ++ return str; ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_wlan_reason_str ++*/ ++static inline const char* ++acx_wlan_reason_str(u16 reason) ++{ ++ static const char* const reason_str[] = { ++ /* 0 */ "?", ++ /* 1 */ "unspecified", ++ /* 2 */ "prev auth is not valid", ++ /* 3 */ "leaving BBS", ++ /* 4 */ "due to inactivity", ++ /* 5 */ "AP is busy", ++ /* 6 */ "got class 2 frame from non-auth'ed STA", ++ /* 7 */ "got class 3 frame from non-assoc'ed STA", ++ /* 8 */ "STA has left BSS", ++ /* 9 */ "assoc without auth is not allowed", ++ /* 10 */ "bad power setting (802.11h)", ++ /* 11 */ "bad channel (802.11i)", ++ /* 12 */ "?", ++ /* 13 */ "invalid IE", ++ /* 14 */ "MIC failure", ++ /* 15 */ "four-way handshake timeout", ++ /* 16 */ "group key handshake timeout", ++ /* 17 */ "IE is different", ++ /* 18 */ "invalid group cipher", ++ /* 19 */ "invalid pairwise cipher", ++ /* 20 */ "invalid AKMP", ++ /* 21 */ "unsupported RSN version", ++ /* 22 */ "invalid RSN IE cap", ++ /* 23 */ "802.1x failed", ++ /* 24 */ "cipher suite rejected" ++ }; ++ return reason < VEC_SIZE(reason_str) ? reason_str[reason] : "?"; ++} ++ ++ ++/*********************************************************************** ++** acx_cmd_status_str ++*/ ++const char* ++acx_cmd_status_str(unsigned int state) ++{ ++ static const char * const cmd_error_strings[] = { ++ "Idle", ++ "Success", ++ "Unknown Command", ++ "Invalid Information Element", ++ "Channel rejected", ++ "Channel invalid in current regulatory domain", ++ "MAC invalid", ++ "Command rejected (read-only information element)", ++ "Command rejected", ++ "Already asleep", ++ "TX in progress", ++ "Already awake", ++ "Write only", ++ "RX in progress", ++ "Invalid parameter", ++ "Scan in progress", ++ "Failed" ++ }; ++ return state < VEC_SIZE(cmd_error_strings) ? ++ cmd_error_strings[state] : "?"; ++} ++ ++ ++/*********************************************************************** ++** get_status_string ++*/ ++static inline const char* ++get_status_string(unsigned int status) ++{ ++ /* A bit shortened, but hopefully still understandable */ ++ static const char * const status_str[] = { ++ /* 0 */ "Successful", ++ /* 1 */ "Unspecified failure", ++ /* 2 */ "reserved", ++ /* 3 */ "reserved", ++ /* 4 */ "reserved", ++ /* 5 */ "reserved", ++ /* 6 */ "reserved", ++ /* 7 */ "reserved", ++ /* 8 */ "reserved", ++ /* 9 */ "reserved", ++ /*10 */ "Cannot support all requested capabilities in Capability Information field", ++ /*11 */ "Reassoc denied (reason outside of 802.11b scope)", ++ /*12 */ "Assoc denied (reason outside of 802.11b scope) -- maybe MAC filtering by peer?", ++ /*13 */ "Responding station doesnt support specified auth algorithm -- maybe WEP auth Open vs. Restricted?", ++ /*14 */ "Auth rejected: wrong transaction sequence number", ++ /*15 */ "Auth rejected: challenge failure", ++ /*16 */ "Auth rejected: timeout for next frame in sequence", ++ /*17 */ "Assoc denied: too many STAs on this AP", ++ /*18 */ "Assoc denied: requesting STA doesnt support all data rates in basic set", ++ /*19 */ "Assoc denied: requesting STA doesnt support Short Preamble", ++ /*20 */ "Assoc denied: requesting STA doesnt support PBCC Modulation", ++ /*21 */ "Assoc denied: requesting STA doesnt support Channel Agility" ++ /*22 */ "reserved", ++ /*23 */ "reserved", ++ /*24 */ "reserved", ++ /*25 */ "Assoc denied: requesting STA doesnt support Short Slot Time", ++ /*26 */ "Assoc denied: requesting STA doesnt support DSSS-OFDM" ++ }; ++ ++ return status_str[status < VEC_SIZE(status_str) ? status : 2]; ++} ++ ++ ++/*********************************************************************** ++*/ ++void ++acx_log_bad_eid(wlan_hdr_t* hdr, int len, wlan_ie_t* ie_ptr) ++{ ++ if (acx_debug & L_ASSOC) { ++ int offset = (u8*)ie_ptr - (u8*)hdr; ++ printk("acx: unknown EID %d in mgmt frame at offset %d. IE: ", ++ ie_ptr->eid, offset); ++ /* IE len can be bogus, IE can extend past packet end. Oh well... */ ++ acx_dump_bytes(ie_ptr, ie_ptr->len + 2); ++ if (acx_debug & L_DATA) { ++ printk("frame (%s): ", ++ acx_get_packet_type_string(le16_to_cpu(hdr->fc))); ++ acx_dump_bytes(hdr, len); ++ } ++ } ++} ++ ++ ++/*********************************************************************** ++*/ ++#if ACX_DEBUG ++void ++acx_dump_bytes(const void *data, int num) ++{ ++ const u8* ptr = (const u8*)data; ++ ++ if (num <= 0) { ++ printk("\n"); ++ return; ++ } ++ ++ while (num >= 16) { ++ printk( "%02X %02X %02X %02X %02X %02X %02X %02X " ++ "%02X %02X %02X %02X %02X %02X %02X %02X\n", ++ ptr[0], ptr[1], ptr[2], ptr[3], ++ ptr[4], ptr[5], ptr[6], ptr[7], ++ ptr[8], ptr[9], ptr[10], ptr[11], ++ ptr[12], ptr[13], ptr[14], ptr[15]); ++ num -= 16; ++ ptr += 16; ++ } ++ if (num > 0) { ++ while (--num > 0) ++ printk("%02X ", *ptr++); ++ printk("%02X\n", *ptr); ++ } ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_s_get_firmware_version ++*/ ++void ++acx_s_get_firmware_version(acx_device_t *adev) ++{ ++ fw_ver_t fw; ++ u8 hexarr[4] = { 0, 0, 0, 0 }; ++ int hexidx = 0, val = 0; ++ const char *num; ++ char c; ++ ++ FN_ENTER; ++ ++ memset(fw.fw_id, 'E', FW_ID_SIZE); ++ acx_s_interrogate(adev, &fw, ACX1xx_IE_FWREV); ++ memcpy(adev->firmware_version, fw.fw_id, FW_ID_SIZE); ++ adev->firmware_version[FW_ID_SIZE] = '\0'; ++ ++ log(L_DEBUG, "fw_ver: fw_id='%s' hw_id=%08X\n", ++ adev->firmware_version, fw.hw_id); ++ ++ if (strncmp(fw.fw_id, "Rev ", 4) != 0) { ++ printk("acx: strange firmware version string " ++ "'%s', please report\n", adev->firmware_version); ++ adev->firmware_numver = 0x01090407; /* assume 1.9.4.7 */ ++ } else { ++ num = &fw.fw_id[4]; ++ while (1) { ++ c = *num++; ++ if ((c == '.') || (c == '\0')) { ++ hexarr[hexidx++] = val; ++ if ((hexidx > 3) || (c == '\0')) /* end? */ ++ break; ++ val = 0; ++ continue; ++ } ++ if ((c >= '0') && (c <= '9')) ++ c -= '0'; ++ else ++ c = c - 'a' + (char)10; ++ val = val*16 + c; ++ } ++ ++ adev->firmware_numver = (u32)( ++ (hexarr[0] << 24) | (hexarr[1] << 16) ++ | (hexarr[2] << 8) | hexarr[3]); ++ log(L_DEBUG, "firmware_numver 0x%08X\n", adev->firmware_numver); ++ } ++ if (IS_ACX111(adev)) { ++ if (adev->firmware_numver == 0x00010011) { ++ /* This one does not survive floodpinging */ ++ printk("acx: firmware '%s' is known to be buggy, " ++ "please upgrade\n", adev->firmware_version); ++ } ++ } ++ ++ adev->firmware_id = le32_to_cpu(fw.hw_id); ++ ++ /* we're able to find out more detailed chip names now */ ++ switch (adev->firmware_id & 0xffff0000) { ++ case 0x01010000: ++ case 0x01020000: ++ adev->chip_name = "TNETW1100A"; ++ break; ++ case 0x01030000: ++ adev->chip_name = "TNETW1100B"; ++ break; ++ case 0x03000000: ++ case 0x03010000: ++ adev->chip_name = "TNETW1130"; ++ break; ++ case 0x04030000: /* 0x04030101 is TNETW1450 */ ++ adev->chip_name = "TNETW1450"; ++ break; ++ default: ++ printk("acx: unknown chip ID 0x%08X, " ++ "please report\n", adev->firmware_id); ++ break; ++ } ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_display_hardware_details ++** ++** Displays hw/fw version, radio type etc... ++*/ ++void ++acx_display_hardware_details(acx_device_t *adev) ++{ ++ const char *radio_str, *form_str; ++ ++ FN_ENTER; ++ ++ switch (adev->radio_type) { ++ case RADIO_MAXIM_0D: ++ radio_str = "Maxim"; ++ break; ++ case RADIO_RFMD_11: ++ radio_str = "RFMD"; ++ break; ++ case RADIO_RALINK_15: ++ radio_str = "Ralink"; ++ break; ++ case RADIO_RADIA_16: ++ radio_str = "Radia"; ++ break; ++ case RADIO_UNKNOWN_17: ++ /* TI seems to have a radio which is ++ * additionally 802.11a capable, too */ ++ radio_str = "802.11a/b/g radio?! Please report"; ++ break; ++ case RADIO_UNKNOWN_19: ++ radio_str = "A radio used by Safecom cards?! Please report"; ++ break; ++ case RADIO_UNKNOWN_1B: ++ radio_str = "An unknown radio used by TNETW1450 USB adapters"; ++ break; ++ default: ++ radio_str = "UNKNOWN, please report radio type name!"; ++ break; ++ } ++ ++ switch (adev->form_factor) { ++ case 0x00: ++ form_str = "unspecified"; ++ break; ++ case 0x01: ++ form_str = "(mini-)PCI / CardBus"; ++ break; ++ case 0x02: ++ form_str = "USB"; ++ break; ++ case 0x03: ++ form_str = "Compact Flash"; ++ break; ++ default: ++ form_str = "UNKNOWN, please report"; ++ break; ++ } ++ ++ printk("acx: === chipset %s, radio type 0x%02X (%s), " ++ "form factor 0x%02X (%s), EEPROM version 0x%02X: " ++ "uploaded firmware '%s' ===\n", ++ adev->chip_name, adev->radio_type, radio_str, ++ adev->form_factor, form_str, adev->eeprom_version, ++ adev->firmware_version); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acx_e_change_mtu(struct net_device *ndev, int mtu) ++{ ++ enum { ++ MIN_MTU = 256, ++ MAX_MTU = WLAN_DATA_MAXLEN - (ETH_HLEN) ++ }; ++ ++ if (mtu < MIN_MTU || mtu > MAX_MTU) ++ return -EINVAL; ++ ++ ndev->mtu = mtu; ++ return 0; ++} ++ ++ ++/*********************************************************************** ++** acx_e_get_stats, acx_e_get_wireless_stats ++*/ ++struct net_device_stats* ++acx_e_get_stats(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ return &adev->stats; ++} ++ ++struct iw_statistics* ++acx_e_get_wireless_stats(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ return &adev->wstats; ++} ++ ++ ++/*********************************************************************** ++** maps acx111 tx descr rate field to acx100 one ++*/ ++const u8 ++acx_bitpos2rate100[] = { ++ RATE100_1 ,/* 0 */ ++ RATE100_2 ,/* 1 */ ++ RATE100_5 ,/* 2 */ ++ RATE100_2 ,/* 3, should not happen */ ++ RATE100_2 ,/* 4, should not happen */ ++ RATE100_11 ,/* 5 */ ++ RATE100_2 ,/* 6, should not happen */ ++ RATE100_2 ,/* 7, should not happen */ ++ RATE100_22 ,/* 8 */ ++ RATE100_2 ,/* 9, should not happen */ ++ RATE100_2 ,/* 10, should not happen */ ++ RATE100_2 ,/* 11, should not happen */ ++ RATE100_2 ,/* 12, should not happen */ ++ RATE100_2 ,/* 13, should not happen */ ++ RATE100_2 ,/* 14, should not happen */ ++ RATE100_2 ,/* 15, should not happen */ ++}; ++ ++u8 ++acx_rate111to100(u16 r) { ++ return acx_bitpos2rate100[highest_bit(r)]; ++} ++ ++ ++/*********************************************************************** ++** Calculate level like the feb 2003 windows driver seems to do ++*/ ++static u8 ++acx_signal_to_winlevel(u8 rawlevel) ++{ ++ /* u8 winlevel = (u8) (0.5 + 0.625 * rawlevel); */ ++ u8 winlevel = ((4 + (rawlevel * 5)) / 8); ++ ++ if (winlevel > 100) ++ winlevel = 100; ++ return winlevel; ++} ++ ++u8 ++acx_signal_determine_quality(u8 signal, u8 noise) ++{ ++ int qual; ++ ++ qual = (((signal - 30) * 100 / 70) + (100 - noise * 4)) / 2; ++ ++ if (qual > 100) ++ return 100; ++ if (qual < 0) ++ return 0; ++ return qual; ++} ++ ++ ++/*********************************************************************** ++** Interrogate/configure commands ++*/ ++ ++/* FIXME: the lengths given here probably aren't always correct. ++ * They should be gradually replaced by proper "sizeof(acx1XX_ie_XXXX)-4", ++ * unless the firmware actually expects a different length than the struct length */ ++static const u16 ++acx100_ie_len[] = { ++ 0, ++ ACX100_IE_ACX_TIMER_LEN, ++ sizeof(acx100_ie_powersave_t)-4, /* is that 6 or 8??? */ ++ ACX1xx_IE_QUEUE_CONFIG_LEN, ++ ACX100_IE_BLOCK_SIZE_LEN, ++ ACX1xx_IE_MEMORY_CONFIG_OPTIONS_LEN, ++ ACX1xx_IE_RATE_FALLBACK_LEN, ++ ACX100_IE_WEP_OPTIONS_LEN, ++ ACX1xx_IE_MEMORY_MAP_LEN, /* ACX1xx_IE_SSID_LEN, */ ++ 0, ++ ACX1xx_IE_ASSOC_ID_LEN, ++ 0, ++ ACX111_IE_CONFIG_OPTIONS_LEN, ++ ACX1xx_IE_FWREV_LEN, ++ ACX1xx_IE_FCS_ERROR_COUNT_LEN, ++ ACX1xx_IE_MEDIUM_USAGE_LEN, ++ ACX1xx_IE_RXCONFIG_LEN, ++ 0, ++ 0, ++ sizeof(fw_stats_t)-4, ++ 0, ++ ACX1xx_IE_FEATURE_CONFIG_LEN, ++ ACX111_IE_KEY_CHOOSE_LEN, ++ ACX1FF_IE_MISC_CONFIG_TABLE_LEN, ++ ACX1FF_IE_WONE_CONFIG_LEN, ++ 0, ++ ACX1FF_IE_TID_CONFIG_LEN, ++ 0, ++ 0, ++ 0, ++ ACX1FF_IE_CALIB_ASSESSMENT_LEN, ++ ACX1FF_IE_BEACON_FILTER_OPTIONS_LEN, ++ ACX1FF_IE_LOW_RSSI_THRESH_OPT_LEN, ++ ACX1FF_IE_NOISE_HISTOGRAM_RESULTS_LEN, ++ 0, ++ ACX1FF_IE_PACKET_DETECT_THRESH_LEN, ++ ACX1FF_IE_TX_CONFIG_OPTIONS_LEN, ++ ACX1FF_IE_CCA_THRESHOLD_LEN, ++ ACX1FF_IE_EVENT_MASK_LEN, ++ ACX1FF_IE_DTIM_PERIOD_LEN, ++ 0, ++ ACX1FF_IE_ACI_CONFIG_SET_LEN, ++ 0, ++ 0, ++ 0, ++ 0, ++ 0, ++ 0, ++ ACX1FF_IE_EEPROM_VER_LEN, ++}; ++ ++static const u16 ++acx100_ie_len_dot11[] = { ++ 0, ++ ACX1xx_IE_DOT11_STATION_ID_LEN, ++ 0, ++ ACX100_IE_DOT11_BEACON_PERIOD_LEN, ++ ACX1xx_IE_DOT11_DTIM_PERIOD_LEN, ++ ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN, ++ ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN, ++ ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE_LEN, ++ ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN, ++ 0, ++ ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN_LEN, ++ ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN, ++ 0, ++ ACX1xx_IE_DOT11_TX_POWER_LEVEL_LEN, ++ ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN, ++ ACX100_IE_DOT11_ED_THRESHOLD_LEN, ++ ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET_LEN, ++ 0, ++ 0, ++ 0, ++}; ++ ++static const u16 ++acx111_ie_len[] = { ++ 0, ++ ACX100_IE_ACX_TIMER_LEN, ++ sizeof(acx111_ie_powersave_t)-4, ++ ACX1xx_IE_QUEUE_CONFIG_LEN, ++ ACX100_IE_BLOCK_SIZE_LEN, ++ ACX1xx_IE_MEMORY_CONFIG_OPTIONS_LEN, ++ ACX1xx_IE_RATE_FALLBACK_LEN, ++ ACX100_IE_WEP_OPTIONS_LEN, ++ ACX1xx_IE_MEMORY_MAP_LEN, /* ACX1xx_IE_SSID_LEN, */ ++ 0, ++ ACX1xx_IE_ASSOC_ID_LEN, ++ 0, ++ ACX111_IE_CONFIG_OPTIONS_LEN, ++ ACX1xx_IE_FWREV_LEN, ++ ACX1xx_IE_FCS_ERROR_COUNT_LEN, ++ ACX1xx_IE_MEDIUM_USAGE_LEN, ++ ACX1xx_IE_RXCONFIG_LEN, ++ 0, ++ 0, ++ sizeof(fw_stats_t)-4, ++ 0, ++ ACX1xx_IE_FEATURE_CONFIG_LEN, ++ ACX111_IE_KEY_CHOOSE_LEN, ++ ACX1FF_IE_MISC_CONFIG_TABLE_LEN, ++ ACX1FF_IE_WONE_CONFIG_LEN, ++ 0, ++ ACX1FF_IE_TID_CONFIG_LEN, ++ 0, ++ 0, ++ 0, ++ ACX1FF_IE_CALIB_ASSESSMENT_LEN, ++ ACX1FF_IE_BEACON_FILTER_OPTIONS_LEN, ++ ACX1FF_IE_LOW_RSSI_THRESH_OPT_LEN, ++ ACX1FF_IE_NOISE_HISTOGRAM_RESULTS_LEN, ++ 0, ++ ACX1FF_IE_PACKET_DETECT_THRESH_LEN, ++ ACX1FF_IE_TX_CONFIG_OPTIONS_LEN, ++ ACX1FF_IE_CCA_THRESHOLD_LEN, ++ ACX1FF_IE_EVENT_MASK_LEN, ++ ACX1FF_IE_DTIM_PERIOD_LEN, ++ 0, ++ ACX1FF_IE_ACI_CONFIG_SET_LEN, ++ 0, ++ 0, ++ 0, ++ 0, ++ 0, ++ 0, ++ ACX1FF_IE_EEPROM_VER_LEN, ++}; ++ ++static const u16 ++acx111_ie_len_dot11[] = { ++ 0, ++ ACX1xx_IE_DOT11_STATION_ID_LEN, ++ 0, ++ ACX100_IE_DOT11_BEACON_PERIOD_LEN, ++ ACX1xx_IE_DOT11_DTIM_PERIOD_LEN, ++ ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN, ++ ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN, ++ ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE_LEN, ++ ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN, ++ 0, ++ ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN_LEN, ++ ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN, ++ 0, ++ ACX1xx_IE_DOT11_TX_POWER_LEVEL_LEN, ++ ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN, ++ ACX100_IE_DOT11_ED_THRESHOLD_LEN, ++ ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET_LEN, ++ 0, ++ 0, ++ 0, ++}; ++ ++ ++#undef FUNC ++#define FUNC "configure" ++#if !ACX_DEBUG ++int ++acx_s_configure(acx_device_t *adev, void *pdr, int type) ++{ ++#else ++int ++acx_s_configure_debug(acx_device_t *adev, void *pdr, int type, const char* typestr) ++{ ++#endif ++ u16 len; ++ int res; ++ ++ if (type < 0x1000) ++ len = adev->ie_len[type]; ++ else ++ len = adev->ie_len_dot11[type - 0x1000]; ++ ++ log(L_CTL, FUNC"(type:%s,len:%u)\n", typestr, len); ++ if (unlikely(!len)) { ++ log(L_DEBUG, "zero-length type %s?!\n", typestr); ++ } ++ ++ ((acx_ie_generic_t *)pdr)->type = cpu_to_le16(type); ++ ((acx_ie_generic_t *)pdr)->len = cpu_to_le16(len); ++ res = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIGURE, pdr, len + 4); ++ if (unlikely(OK != res)) { ++#if ACX_DEBUG ++ printk("%s: "FUNC"(type:%s) FAILED\n", adev->ndev->name, typestr); ++#else ++ printk("%s: "FUNC"(type:0x%X) FAILED\n", adev->ndev->name, type); ++#endif ++ /* dump_stack() is already done in issue_cmd() */ ++ } ++ return res; ++} ++ ++#undef FUNC ++#define FUNC "interrogate" ++#if !ACX_DEBUG ++int ++acx_s_interrogate(acx_device_t *adev, void *pdr, int type) ++{ ++#else ++int ++acx_s_interrogate_debug(acx_device_t *adev, void *pdr, int type, ++ const char* typestr) ++{ ++#endif ++ u16 len; ++ int res; ++ ++ /* FIXME: no check whether this exceeds the array yet. ++ * We should probably remember the number of entries... */ ++ if (type < 0x1000) ++ len = adev->ie_len[type]; ++ else ++ len = adev->ie_len_dot11[type-0x1000]; ++ ++ log(L_CTL, FUNC"(type:%s,len:%u)\n", typestr, len); ++ ++ ((acx_ie_generic_t *)pdr)->type = cpu_to_le16(type); ++ ((acx_ie_generic_t *)pdr)->len = cpu_to_le16(len); ++ res = acx_s_issue_cmd(adev, ACX1xx_CMD_INTERROGATE, pdr, len + 4); ++ if (unlikely(OK != res)) { ++#if ACX_DEBUG ++ printk("%s: "FUNC"(type:%s) FAILED\n", adev->ndev->name, typestr); ++#else ++ printk("%s: "FUNC"(type:0x%X) FAILED\n", adev->ndev->name, type); ++#endif ++ /* dump_stack() is already done in issue_cmd() */ ++ } ++ return res; ++} ++ ++#if CMD_DISCOVERY ++void ++great_inquisitor(acx_device_t *adev) ++{ ++ static struct { ++ u16 type; ++ u16 len; ++ /* 0x200 was too large here: */ ++ u8 data[0x100 - 4]; ++ } ACX_PACKED ie; ++ u16 type; ++ ++ FN_ENTER; ++ ++ /* 0..0x20, 0x1000..0x1020 */ ++ for (type = 0; type <= 0x1020; type++) { ++ if (type == 0x21) ++ type = 0x1000; ++ ie.type = cpu_to_le16(type); ++ ie.len = cpu_to_le16(sizeof(ie) - 4); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_INTERROGATE, &ie, sizeof(ie)); ++ } ++ FN_EXIT0; ++} ++#endif ++ ++ ++#ifdef CONFIG_PROC_FS ++/*********************************************************************** ++** /proc files ++*/ ++/*********************************************************************** ++** acx_l_proc_output ++** Generate content for our /proc entry ++** ++** Arguments: ++** buf is a pointer to write output to ++** adev is the usual pointer to our private struct acx_device ++** Returns: ++** number of bytes actually written to buf ++** Side effects: ++** none ++*/ ++static int ++acx_l_proc_output(char *buf, acx_device_t *adev) ++{ ++ char *p = buf; ++ int i; ++ ++ FN_ENTER; ++ ++ p += sprintf(p, ++ "acx driver version:\t\t" ACX_RELEASE "\n" ++ "Wireless extension version:\t" STRING(WIRELESS_EXT) "\n" ++ "chip name:\t\t\t%s (0x%08X)\n" ++ "radio type:\t\t\t0x%02X\n" ++ "form factor:\t\t\t0x%02X\n" ++ "EEPROM version:\t\t\t0x%02X\n" ++ "firmware version:\t\t%s (0x%08X)\n", ++ adev->chip_name, adev->firmware_id, ++ adev->radio_type, ++ adev->form_factor, ++ adev->eeprom_version, ++ adev->firmware_version, adev->firmware_numver); ++ ++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) { ++ struct client *bss = &adev->sta_list[i]; ++ if (!bss->used) continue; ++ p += sprintf(p, "BSS %u BSSID "MACSTR" ESSID %s channel %u " ++ "Cap 0x%X SIR %u SNR %u\n", ++ i, MAC(bss->bssid), (char*)bss->essid, bss->channel, ++ bss->cap_info, bss->sir, bss->snr); ++ } ++ p += sprintf(p, "status:\t\t\t%u (%s)\n", ++ adev->status, acx_get_status_name(adev->status)); ++ ++ FN_EXIT1(p - buf); ++ return p - buf; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_s_proc_diag_output(char *buf, acx_device_t *adev) ++{ ++ char *p = buf; ++ unsigned long flags; ++ unsigned int len = 0, partlen; ++ u32 temp1, temp2; ++ u8 *st, *st_end; ++#ifdef __BIG_ENDIAN ++ u8 *st2; ++#endif ++ fw_stats_t *fw_stats; ++ char *part_str = NULL; ++ fw_stats_tx_t *tx = NULL; ++ fw_stats_rx_t *rx = NULL; ++ fw_stats_dma_t *dma = NULL; ++ fw_stats_irq_t *irq = NULL; ++ fw_stats_wep_t *wep = NULL; ++ fw_stats_pwr_t *pwr = NULL; ++ fw_stats_mic_t *mic = NULL; ++ fw_stats_aes_t *aes = NULL; ++ fw_stats_event_t *evt = NULL; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ ++#if defined (ACX_MEM) ++ p = acxmem_s_proc_diag_output(p, adev); ++#else ++ if (IS_PCI(adev)) ++ p = acxpci_s_proc_diag_output(p, adev); ++#endif ++ ++ p += sprintf(p, ++ "\n" ++ "** network status **\n" ++ "dev_state_mask 0x%04X\n" ++ "status %u (%s), " ++ "mode %u, channel %u, " ++ "reg_dom_id 0x%02X, reg_dom_chanmask 0x%04X, ", ++ adev->dev_state_mask, ++ adev->status, acx_get_status_name(adev->status), ++ adev->mode, adev->channel, ++ adev->reg_dom_id, adev->reg_dom_chanmask ++ ); ++ p += sprintf(p, ++ "ESSID \"%s\", essid_active %d, essid_len %d, " ++ "essid_for_assoc \"%s\", nick \"%s\"\n" ++ "WEP ena %d, restricted %d, idx %d\n", ++ adev->essid, adev->essid_active, (int)adev->essid_len, ++ adev->essid_for_assoc, adev->nick, ++ adev->wep_enabled, adev->wep_restricted, ++ adev->wep_current_index); ++ p += sprintf(p, "dev_addr "MACSTR"\n", MAC(adev->dev_addr)); ++ p += sprintf(p, "bssid "MACSTR"\n", MAC(adev->bssid)); ++ p += sprintf(p, "ap_filter "MACSTR"\n", MAC(adev->ap)); ++ ++ p += sprintf(p, ++ "\n" ++ "** PHY status **\n" ++ "tx_disabled %d, tx_level_dbm %d\n" /* "tx_level_val %d, tx_level_auto %d\n" */ ++ "sensitivity %d, antenna 0x%02X, ed_threshold %d, cca %d, preamble_mode %d\n" ++ "rate_basic 0x%04X, rate_oper 0x%04X\n" ++ "rts_threshold %d, frag_threshold %d, short_retry %d, long_retry %d\n" ++ "msdu_lifetime %d, listen_interval %d, beacon_interval %d\n", ++ adev->tx_disabled, adev->tx_level_dbm, /* adev->tx_level_val, adev->tx_level_auto, */ ++ adev->sensitivity, adev->antenna, adev->ed_threshold, adev->cca, adev->preamble_mode, ++ adev->rate_basic, adev->rate_oper, ++ adev->rts_threshold, adev->frag_threshold, adev->short_retry, adev->long_retry, ++ adev->msdu_lifetime, adev->listen_interval, adev->beacon_interval); ++ ++ acx_unlock(adev, flags); ++ ++ p += sprintf(p, ++ "\n" ++ "** Firmware **\n" ++ "NOTE: version dependent statistics layout, " ++ "please report if you suspect wrong parsing!\n" ++ "\n" ++ "version \"%s\"\n", adev->firmware_version); ++ ++ /* TODO: may replace kmalloc/memset with kzalloc once ++ * Linux 2.6.14 is widespread */ ++ fw_stats = kmalloc(sizeof(*fw_stats), GFP_KERNEL); ++ if (!fw_stats) { ++ FN_EXIT1(0); ++ return 0; ++ } ++ memset(fw_stats, 0, sizeof(*fw_stats)); ++ ++ st = (u8 *)fw_stats; ++ ++ part_str = "statistics query command"; ++ ++ if (OK != acx_s_interrogate(adev, st, ACX1xx_IE_FIRMWARE_STATISTICS)) ++ goto fw_stats_end; ++ ++ st += sizeof(u16); ++ len = *(u16 *)st; ++ ++ if (len > sizeof(*fw_stats)) { ++ p += sprintf(p, ++ "firmware version with bigger fw_stats struct detected\n" ++ "(%u vs. %u), please report\n", len, sizeof(fw_stats_t)); ++ if (len > sizeof(*fw_stats)) { ++ p += sprintf(p, "struct size exceeded allocation!\n"); ++ len = sizeof(*fw_stats); ++ } ++ } ++ st += sizeof(u16); ++ st_end = st - 2*sizeof(u16) + len; ++ ++#ifdef __BIG_ENDIAN ++ /* let's make one bold assumption here: ++ * (hopefully!) *all* statistics fields are u32 only, ++ * thus if we need to make endianness corrections ++ * we can simply do them in one go, in advance */ ++ st2 = (u8 *)fw_stats; ++ for (temp1 = 0; temp1 < len; temp1 += 4, st2 += 4) ++ *(u32 *)st2 = le32_to_cpu(*(u32 *)st2); ++#endif ++ ++ part_str = "Rx/Tx"; ++ ++ /* directly at end of a struct part? --> no error! */ ++ if (st == st_end) ++ goto fw_stats_end; ++ ++ tx = (fw_stats_tx_t *)st; ++ st += sizeof(fw_stats_tx_t); ++ rx = (fw_stats_rx_t *)st; ++ st += sizeof(fw_stats_rx_t); ++ partlen = sizeof(fw_stats_tx_t) + sizeof(fw_stats_rx_t); ++ ++ if (IS_ACX100(adev)) { ++ /* at least ACX100 PCI F/W 1.9.8.b ++ * and ACX100 USB F/W 1.0.7-USB ++ * don't have those two fields... */ ++ st -= 2*sizeof(u32); ++ ++ /* our parsing doesn't quite match this firmware yet, ++ * log failure */ ++ if (st > st_end) ++ goto fw_stats_fail; ++ temp1 = temp2 = 999999999; ++ } else { ++ if (st > st_end) ++ goto fw_stats_fail; ++ temp1 = rx->rx_aci_events; ++ temp2 = rx->rx_aci_resets; ++ } ++ ++ p += sprintf(p, ++ "%s:\n" ++ " tx_desc_overfl %u\n" ++ " rx_OutOfMem %u, rx_hdr_overfl %u, rx_hw_stuck %u\n" ++ " rx_dropped_frame %u, rx_frame_ptr_err %u, rx_xfr_hint_trig %u\n" ++ " rx_aci_events %u, rx_aci_resets %u\n", ++ part_str, ++ tx->tx_desc_of, ++ rx->rx_oom, ++ rx->rx_hdr_of, ++ rx->rx_hw_stuck, ++ rx->rx_dropped_frame, ++ rx->rx_frame_ptr_err, ++ rx->rx_xfr_hint_trig, ++ temp1, ++ temp2); ++ ++ part_str = "DMA"; ++ ++ if (st == st_end) ++ goto fw_stats_end; ++ ++ dma = (fw_stats_dma_t *)st; ++ partlen = sizeof(fw_stats_dma_t); ++ st += partlen; ++ ++ if (st > st_end) ++ goto fw_stats_fail; ++ ++ p += sprintf(p, ++ "%s:\n" ++ " rx_dma_req %u, rx_dma_err %u, tx_dma_req %u, tx_dma_err %u\n", ++ part_str, ++ dma->rx_dma_req, ++ dma->rx_dma_err, ++ dma->tx_dma_req, ++ dma->tx_dma_err); ++ ++ part_str = "IRQ"; ++ ++ if (st == st_end) ++ goto fw_stats_end; ++ ++ irq = (fw_stats_irq_t *)st; ++ partlen = sizeof(fw_stats_irq_t); ++ st += partlen; ++ ++ if (st > st_end) ++ goto fw_stats_fail; ++ ++ p += sprintf(p, ++ "%s:\n" ++ " cmd_cplt %u, fiq %u\n" ++ " rx_hdrs %u, rx_cmplt %u, rx_mem_overfl %u, rx_rdys %u\n" ++ " irqs %u, tx_procs %u, decrypt_done %u\n" ++ " dma_0_done %u, dma_1_done %u, tx_exch_complet %u\n" ++ " commands %u, rx_procs %u, hw_pm_mode_changes %u\n" ++ " host_acks %u, pci_pm %u, acm_wakeups %u\n", ++ part_str, ++ irq->cmd_cplt, ++ irq->fiq, ++ irq->rx_hdrs, ++ irq->rx_cmplt, ++ irq->rx_mem_of, ++ irq->rx_rdys, ++ irq->irqs, ++ irq->tx_procs, ++ irq->decrypt_done, ++ irq->dma_0_done, ++ irq->dma_1_done, ++ irq->tx_exch_complet, ++ irq->commands, ++ irq->rx_procs, ++ irq->hw_pm_mode_changes, ++ irq->host_acks, ++ irq->pci_pm, ++ irq->acm_wakeups); ++ ++ part_str = "WEP"; ++ ++ if (st == st_end) ++ goto fw_stats_end; ++ ++ wep = (fw_stats_wep_t *)st; ++ partlen = sizeof(fw_stats_wep_t); ++ st += partlen; ++ ++ if ( ++ (IS_PCI(adev) && IS_ACX100(adev)) ++ || (IS_USB(adev) && IS_ACX100(adev)) ++ || (IS_MEM(adev) && IS_ACX100(adev)) ++ ) { ++ /* at least ACX100 PCI F/W 1.9.8.b, ++ * ACX100 USB F/W 1.0.7-USB ++ * and ACX100 Generic Slave F/W 1.10.7.K ++ * don't have those two fields... ++ */ ++ st -= 2*sizeof(u32); ++ if (st > st_end) ++ goto fw_stats_fail; ++ temp1 = temp2 = 999999999; ++ } else { ++ if (st > st_end) ++ goto fw_stats_fail; ++ temp1 = wep->wep_pkt_decrypt; ++ temp2 = wep->wep_decrypt_irqs; ++ } ++ ++ p += sprintf(p, ++ "%s:\n" ++ " wep_key_count %u, wep_default_key_count %u, dot11_def_key_mib %u\n" ++ " wep_key_not_found %u, wep_decrypt_fail %u\n" ++ " wep_pkt_decrypt %u, wep_decrypt_irqs %u\n", ++ part_str, ++ wep->wep_key_count, ++ wep->wep_default_key_count, ++ wep->dot11_def_key_mib, ++ wep->wep_key_not_found, ++ wep->wep_decrypt_fail, ++ temp1, ++ temp2); ++ ++ part_str = "power"; ++ ++ if (st == st_end) ++ goto fw_stats_end; ++ ++ pwr = (fw_stats_pwr_t *)st; ++ partlen = sizeof(fw_stats_pwr_t); ++ st += partlen; ++ ++ if (st > st_end) ++ goto fw_stats_fail; ++ ++ p += sprintf(p, ++ "%s:\n" ++ " tx_start_ctr %u, no_ps_tx_too_short %u\n" ++ " rx_start_ctr %u, no_ps_rx_too_short %u\n" ++ " lppd_started %u\n" ++ " no_lppd_too_noisy %u, no_lppd_too_short %u, no_lppd_matching_frame %u\n", ++ part_str, ++ pwr->tx_start_ctr, ++ pwr->no_ps_tx_too_short, ++ pwr->rx_start_ctr, ++ pwr->no_ps_rx_too_short, ++ pwr->lppd_started, ++ pwr->no_lppd_too_noisy, ++ pwr->no_lppd_too_short, ++ pwr->no_lppd_matching_frame); ++ ++ part_str = "MIC"; ++ ++ if (st == st_end) ++ goto fw_stats_end; ++ ++ mic = (fw_stats_mic_t *)st; ++ partlen = sizeof(fw_stats_mic_t); ++ st += partlen; ++ ++ if (st > st_end) ++ goto fw_stats_fail; ++ ++ p += sprintf(p, ++ "%s:\n" ++ " mic_rx_pkts %u, mic_calc_fail %u\n", ++ part_str, ++ mic->mic_rx_pkts, ++ mic->mic_calc_fail); ++ ++ part_str = "AES"; ++ ++ if (st == st_end) ++ goto fw_stats_end; ++ ++ aes = (fw_stats_aes_t *)st; ++ partlen = sizeof(fw_stats_aes_t); ++ st += partlen; ++ ++ if (st > st_end) ++ goto fw_stats_fail; ++ ++ p += sprintf(p, ++ "%s:\n" ++ " aes_enc_fail %u, aes_dec_fail %u\n" ++ " aes_enc_pkts %u, aes_dec_pkts %u\n" ++ " aes_enc_irq %u, aes_dec_irq %u\n", ++ part_str, ++ aes->aes_enc_fail, ++ aes->aes_dec_fail, ++ aes->aes_enc_pkts, ++ aes->aes_dec_pkts, ++ aes->aes_enc_irq, ++ aes->aes_dec_irq); ++ ++ part_str = "event"; ++ ++ if (st == st_end) ++ goto fw_stats_end; ++ ++ evt = (fw_stats_event_t *)st; ++ partlen = sizeof(fw_stats_event_t); ++ st += partlen; ++ ++ if (st > st_end) ++ goto fw_stats_fail; ++ ++ p += sprintf(p, ++ "%s:\n" ++ " heartbeat %u, calibration %u\n" ++ " rx_mismatch %u, rx_mem_empty %u, rx_pool %u\n" ++ " oom_late %u\n" ++ " phy_tx_err %u, tx_stuck %u\n", ++ part_str, ++ evt->heartbeat, ++ evt->calibration, ++ evt->rx_mismatch, ++ evt->rx_mem_empty, ++ evt->rx_pool, ++ evt->oom_late, ++ evt->phy_tx_err, ++ evt->tx_stuck); ++ ++ if (st < st_end) ++ goto fw_stats_bigger; ++ ++ goto fw_stats_end; ++ ++fw_stats_fail: ++ st -= partlen; ++ p += sprintf(p, ++ "failed at %s part (size %u), offset %u (struct size %u), " ++ "please report\n", part_str, partlen, ++ (int)st - (int)fw_stats, len); ++ ++fw_stats_bigger: ++ for (; st < st_end; st += 4) ++ p += sprintf(p, ++ "UNKN%3d: %u\n", (int)st - (int)fw_stats, *(u32 *)st); ++ ++fw_stats_end: ++ kfree(fw_stats); ++ ++ FN_EXIT1(p - buf); ++ return p - buf; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_s_proc_phy_output(char *buf, acx_device_t *adev) ++{ ++ char *p = buf; ++ int i; ++ ++ FN_ENTER; ++ ++ /* ++ if (RADIO_RFMD_11 != adev->radio_type) { ++ printk("sorry, not yet adapted for radio types " ++ "other than RFMD, please verify " ++ "PHY size etc. first!\n"); ++ goto end; ++ } ++ */ ++ ++ /* The PHY area is only 0x80 bytes long; further pages after that ++ * only have some page number registers with altered value, ++ * all other registers remain the same. */ ++ for (i = 0; i < 0x80; i++) { ++ acx_s_read_phy_reg(adev, i, p++); ++ } ++ ++ FN_EXIT1(p - buf); ++ return p - buf; ++} ++ ++ ++/*********************************************************************** ++** acx_e_read_proc_XXXX ++** Handle our /proc entry ++** ++** Arguments: ++** standard kernel read_proc interface ++** Returns: ++** number of bytes written to buf ++** Side effects: ++** none ++*/ ++static int ++acx_e_read_proc(char *buf, char **start, off_t offset, int count, ++ int *eof, void *data) ++{ ++ acx_device_t *adev = (acx_device_t*)data; ++ unsigned long flags; ++ int length; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ acx_lock(adev, flags); ++ /* fill buf */ ++ length = acx_l_proc_output(buf, adev); ++ acx_unlock(adev, flags); ++ acx_sem_unlock(adev); ++ ++ /* housekeeping */ ++ if (length <= offset + count) ++ *eof = 1; ++ *start = buf + offset; ++ length -= offset; ++ if (length > count) ++ length = count; ++ if (length < 0) ++ length = 0; ++ FN_EXIT1(length); ++ return length; ++} ++ ++static char _buf[32768]; ++static int ++acx_e_read_proc_diag(char *buf, char **start, off_t offset, int count, ++ int *eof, void *data) ++{ ++ acx_device_t *adev = (acx_device_t*)data; ++ int length; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ /* fill buf */ ++ length = acx_s_proc_diag_output(_buf, adev); ++ acx_sem_unlock(adev); ++ ++ memcpy(buf, _buf + offset, count); ++ ++ /* housekeeping */ ++ if (length <= offset + count) ++ *eof = 1; ++ *start = count; ++ length -= offset; ++ if (length > count) ++ length = count; ++ if (length < 0) ++ length = 0; ++ FN_EXIT1(length); ++ return length; ++} ++ ++static int ++acx_e_read_proc_eeprom(char *buf, char **start, off_t offset, int count, ++ int *eof, void *data) ++{ ++ acx_device_t *adev = (acx_device_t*)data; ++ int length; ++ ++ FN_ENTER; ++ ++ /* fill buf */ ++ length = 0; ++#if defined (ACX_MEM) ++ acx_sem_lock(adev); ++ length = acxmem_proc_eeprom_output(buf, adev); ++ acx_sem_unlock(adev); ++#else ++ if (IS_PCI(adev)) { ++ acx_sem_lock(adev); ++ length = acxpci_proc_eeprom_output(buf, adev); ++ acx_sem_unlock(adev); ++ } ++#endif ++ ++ /* housekeeping */ ++ if (length <= offset + count) ++ *eof = 1; ++ *start = buf + offset; ++ length -= offset; ++ if (length > count) ++ length = count; ++ if (length < 0) ++ length = 0; ++ FN_EXIT1(length); ++ return length; ++} ++ ++static int ++acx_e_read_proc_phy(char *buf, char **start, off_t offset, int count, ++ int *eof, void *data) ++{ ++ acx_device_t *adev = (acx_device_t*)data; ++ int length; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ /* fill buf */ ++ length = acx_s_proc_phy_output(buf, adev); ++ acx_sem_unlock(adev); ++ ++ /* housekeeping */ ++ if (length <= offset + count) ++ *eof = 1; ++ *start = buf + offset; ++ length -= offset; ++ if (length > count) ++ length = count; ++ if (length < 0) ++ length = 0; ++ FN_EXIT1(length); ++ return length; ++} ++ ++ ++/*********************************************************************** ++** /proc files registration ++*/ ++static const char * const ++proc_files[] = { "", "_diag", "_eeprom", "_phy" }; ++ ++static read_proc_t * const ++proc_funcs[] = { ++ acx_e_read_proc, ++ acx_e_read_proc_diag, ++ acx_e_read_proc_eeprom, ++ acx_e_read_proc_phy ++}; ++ ++static int ++manage_proc_entries(const struct net_device *ndev, int remove) ++{ ++ acx_device_t *adev = ndev2adev((struct net_device *)ndev); ++ char procbuf[80]; ++ int i; ++ ++ for (i = 0; i < VEC_SIZE(proc_files); i++) { ++ snprintf(procbuf, sizeof(procbuf), ++ "driver/acx_%s%s", ndev->name, proc_files[i]); ++ log(L_INIT, "%sing /proc entry %s\n", ++ remove ? "remov" : "creat", procbuf); ++ if (!remove) { ++ if (!create_proc_read_entry(procbuf, 0, 0, proc_funcs[i], adev)) { ++ printk("acx: cannot register /proc entry %s\n", procbuf); ++ return NOT_OK; ++ } ++ } else { ++ remove_proc_entry(procbuf, NULL); ++ } ++ } ++ return OK; ++} ++ ++int ++acx_proc_register_entries(const struct net_device *ndev) ++{ ++ return manage_proc_entries(ndev, 0); ++} ++ ++int ++acx_proc_unregister_entries(const struct net_device *ndev) ++{ ++ return manage_proc_entries(ndev, 1); ++} ++#endif /* CONFIG_PROC_FS */ ++ ++ ++/*********************************************************************** ++** acx_cmd_join_bssid ++** ++** Common code for both acx100 and acx111. ++*/ ++/* NB: does NOT match RATE100_nn but matches ACX[111]_SCAN_RATE_n */ ++static const u8 ++bitpos2genframe_txrate[] = { ++ 10, /* 0. 1 Mbit/s */ ++ 20, /* 1. 2 Mbit/s */ ++ 55, /* 2. 5.5 Mbit/s */ ++ 0x0B, /* 3. 6 Mbit/s */ ++ 0x0F, /* 4. 9 Mbit/s */ ++ 110, /* 5. 11 Mbit/s */ ++ 0x0A, /* 6. 12 Mbit/s */ ++ 0x0E, /* 7. 18 Mbit/s */ ++ 220, /* 8. 22 Mbit/s */ ++ 0x09, /* 9. 24 Mbit/s */ ++ 0x0D, /* 10. 36 Mbit/s */ ++ 0x08, /* 11. 48 Mbit/s */ ++ 0x0C, /* 12. 54 Mbit/s */ ++ 10, /* 13. 1 Mbit/s, should never happen */ ++ 10, /* 14. 1 Mbit/s, should never happen */ ++ 10, /* 15. 1 Mbit/s, should never happen */ ++}; ++ ++/* Looks scary, eh? ++** Actually, each one compiled into one AND and one SHIFT, ++** 31 bytes in x86 asm (more if uints are replaced by u16/u8) */ ++static inline unsigned int ++rate111to5bits(unsigned int rate) ++{ ++ return (rate & 0x7) ++ | ( (rate & RATE111_11) / (RATE111_11/JOINBSS_RATES_11) ) ++ | ( (rate & RATE111_22) / (RATE111_22/JOINBSS_RATES_22) ) ++ ; ++} ++ ++static void ++acx_s_cmd_join_bssid(acx_device_t *adev, const u8 *bssid) ++{ ++ acx_joinbss_t tmp; ++ int dtim_interval; ++ int i; ++ ++ if (mac_is_zero(bssid)) ++ return; ++ ++ FN_ENTER; ++ ++ dtim_interval = (ACX_MODE_0_ADHOC == adev->mode) ? ++ 1 : adev->dtim_interval; ++ ++ memset(&tmp, 0, sizeof(tmp)); ++ ++ for (i = 0; i < ETH_ALEN; i++) { ++ tmp.bssid[i] = bssid[ETH_ALEN-1 - i]; ++ } ++ ++ tmp.beacon_interval = cpu_to_le16(adev->beacon_interval); ++ ++ /* Basic rate set. Control frame responses (such as ACK or CTS frames) ++ ** are sent with one of these rates */ ++ if (IS_ACX111(adev)) { ++ /* It was experimentally determined that rates_basic ++ ** can take 11g rates as well, not only rates ++ ** defined with JOINBSS_RATES_BASIC111_nnn. ++ ** Just use RATE111_nnn constants... */ ++ tmp.u.acx111.dtim_interval = dtim_interval; ++ tmp.u.acx111.rates_basic = cpu_to_le16(adev->rate_basic); ++ log(L_ASSOC, "rates_basic:%04X, rates_supported:%04X\n", ++ adev->rate_basic, adev->rate_oper); ++ } else { ++ tmp.u.acx100.dtim_interval = dtim_interval; ++ tmp.u.acx100.rates_basic = rate111to5bits(adev->rate_basic); ++ tmp.u.acx100.rates_supported = rate111to5bits(adev->rate_oper); ++ log(L_ASSOC, "rates_basic:%04X->%02X, " ++ "rates_supported:%04X->%02X\n", ++ adev->rate_basic, tmp.u.acx100.rates_basic, ++ adev->rate_oper, tmp.u.acx100.rates_supported); ++ } ++ ++ /* Setting up how Beacon, Probe Response, RTS, and PS-Poll frames ++ ** will be sent (rate/modulation/preamble) */ ++ tmp.u.txrate.genfrm_txrate = bitpos2genframe_txrate[lowest_bit(adev->rate_basic)]; ++ tmp.genfrm_mod_pre = 0; /* FIXME: was = adev->capab_short (which was always 0); */ ++ /* we can use short pre *if* all peers can understand it */ ++ /* FIXME #2: we need to correctly set PBCC/OFDM bits here too */ ++ ++ /* we switch fw to STA mode in MONITOR mode, it seems to be ++ ** the only mode where fw does not emit beacons by itself ++ ** but allows us to send anything (we really want to retain ++ ** ability to tx arbitrary frames in MONITOR mode) ++ */ ++ tmp.macmode = (adev->mode != ACX_MODE_MONITOR ? adev->mode : ACX_MODE_2_STA); ++ tmp.channel = adev->channel; ++ tmp.essid_len = adev->essid_len; ++ /* NOTE: the code memcpy'd essid_len + 1 before, which is WRONG! */ ++ memcpy(tmp.essid, adev->essid, tmp.essid_len); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_JOIN, &tmp, tmp.essid_len + 0x11); ++ ++ log(L_ASSOC|L_DEBUG, "BSS_Type = %u\n", tmp.macmode); ++ acxlog_mac(L_ASSOC|L_DEBUG, "JoinBSSID MAC:", adev->bssid, "\n"); ++ ++ acx_update_capabilities(adev); ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_s_cmd_start_scan ++** ++** Issue scan command to the hardware ++** ++** unified function for both ACX111 and ACX100 ++*/ ++static void ++acx_s_scan_chan(acx_device_t *adev) ++{ ++ union { ++ acx111_scan_t acx111; ++ acx100_scan_t acx100; ++ } s; ++ ++ FN_ENTER; ++ ++ memset(&s, 0, sizeof(s)); ++ ++ /* first common positions... */ ++ ++ s.acx111.count = cpu_to_le16(adev->scan_count); ++ s.acx111.rate = adev->scan_rate; ++ s.acx111.options = adev->scan_mode; ++ s.acx111.chan_duration = cpu_to_le16(adev->scan_duration); ++ s.acx111.max_probe_delay = cpu_to_le16(adev->scan_probe_delay); ++ ++ /* ...then differences */ ++ ++ if (IS_ACX111(adev)) { ++ s.acx111.channel_list_select = 0; /* scan every allowed channel */ ++ /*s.acx111.channel_list_select = 1;*/ /* scan given channels */ ++ /*s.acx111.modulation = 0x40;*/ /* long preamble? OFDM? -> only for active scan */ ++ s.acx111.modulation = 0; ++ /*s.acx111.channel_list[0] = 6; ++ s.acx111.channel_list[1] = 4;*/ ++ } else { ++ s.acx100.start_chan = cpu_to_le16(1); ++ s.acx100.flags = cpu_to_le16(0x8000); ++ } ++ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_SCAN, &s, sizeof(s)); ++ FN_EXIT0; ++} ++ ++ ++void ++acx_s_cmd_start_scan(acx_device_t *adev) ++{ ++ /* time_before check is 'just in case' thing */ ++ if (!(adev->irq_status & HOST_INT_SCAN_COMPLETE) ++ && time_before(jiffies, adev->scan_start + 10*HZ) ++ ) { ++ log(L_INIT, "start_scan: seems like previous scan " ++ "is still running. Not starting anew. Please report\n"); ++ return; ++ } ++ ++ log(L_INIT, "starting radio scan\n"); ++ /* remember that fw is commanded to do scan */ ++ adev->scan_start = jiffies; ++ CLEAR_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE); ++ /* issue it */ ++ acx_s_scan_chan(adev); ++} ++ ++ ++/*********************************************************************** ++** acx111 feature config ++*/ ++static int ++acx111_s_get_feature_config(acx_device_t *adev, ++ u32 *feature_options, u32 *data_flow_options) ++{ ++ struct acx111_ie_feature_config feat; ++ ++ if (!IS_ACX111(adev)) { ++ return NOT_OK; ++ } ++ ++ memset(&feat, 0, sizeof(feat)); ++ ++ if (OK != acx_s_interrogate(adev, &feat, ACX1xx_IE_FEATURE_CONFIG)) { ++ return NOT_OK; ++ } ++ log(L_DEBUG, ++ "got Feature option:0x%X, DataFlow option: 0x%X\n", ++ feat.feature_options, ++ feat.data_flow_options); ++ ++ if (feature_options) ++ *feature_options = le32_to_cpu(feat.feature_options); ++ if (data_flow_options) ++ *data_flow_options = le32_to_cpu(feat.data_flow_options); ++ ++ return OK; ++} ++ ++static int ++acx111_s_set_feature_config(acx_device_t *adev, ++ u32 feature_options, u32 data_flow_options, ++ unsigned int mode /* 0 == remove, 1 == add, 2 == set */) ++{ ++ struct acx111_ie_feature_config feat; ++ ++ if (!IS_ACX111(adev)) { ++ return NOT_OK; ++ } ++ ++ if ((mode < 0) || (mode > 2)) ++ return NOT_OK; ++ ++ if (mode != 2) ++ /* need to modify old data */ ++ acx111_s_get_feature_config(adev, &feat.feature_options, &feat.data_flow_options); ++ else { ++ /* need to set a completely new value */ ++ feat.feature_options = 0; ++ feat.data_flow_options = 0; ++ } ++ ++ if (mode == 0) { /* remove */ ++ CLEAR_BIT(feat.feature_options, cpu_to_le32(feature_options)); ++ CLEAR_BIT(feat.data_flow_options, cpu_to_le32(data_flow_options)); ++ } else { /* add or set */ ++ SET_BIT(feat.feature_options, cpu_to_le32(feature_options)); ++ SET_BIT(feat.data_flow_options, cpu_to_le32(data_flow_options)); ++ } ++ ++ log(L_DEBUG, ++ "old: feature 0x%08X dataflow 0x%08X. mode: %u\n" ++ "new: feature 0x%08X dataflow 0x%08X\n", ++ feature_options, data_flow_options, mode, ++ le32_to_cpu(feat.feature_options), ++ le32_to_cpu(feat.data_flow_options)); ++ ++ if (OK != acx_s_configure(adev, &feat, ACX1xx_IE_FEATURE_CONFIG)) { ++ return NOT_OK; ++ } ++ ++ return OK; ++} ++ ++static inline int ++acx111_s_feature_off(acx_device_t *adev, u32 f, u32 d) ++{ ++ return acx111_s_set_feature_config(adev, f, d, 0); ++} ++static inline int ++acx111_s_feature_on(acx_device_t *adev, u32 f, u32 d) ++{ ++ return acx111_s_set_feature_config(adev, f, d, 1); ++} ++static inline int ++acx111_s_feature_set(acx_device_t *adev, u32 f, u32 d) ++{ ++ return acx111_s_set_feature_config(adev, f, d, 2); ++} ++ ++ ++/*********************************************************************** ++** acx100_s_init_memory_pools ++*/ ++static int ++acx100_s_init_memory_pools(acx_device_t *adev, const acx_ie_memmap_t *mmt) ++{ ++ acx100_ie_memblocksize_t MemoryBlockSize; ++ acx100_ie_memconfigoption_t MemoryConfigOption; ++ int TotalMemoryBlocks; ++ int RxBlockNum; ++ int TotalRxBlockSize; ++ int TxBlockNum; ++ int TotalTxBlockSize; ++ ++ FN_ENTER; ++ ++ /* Let's see if we can follow this: ++ first we select our memory block size (which I think is ++ completely arbitrary) */ ++ MemoryBlockSize.size = cpu_to_le16(adev->memblocksize); ++ ++ /* Then we alert the card to our decision of block size */ ++ if (OK != acx_s_configure(adev, &MemoryBlockSize, ACX100_IE_BLOCK_SIZE)) { ++ goto bad; ++ } ++ ++ /* We figure out how many total blocks we can create, using ++ the block size we chose, and the beginning and ending ++ memory pointers, i.e.: end-start/size */ ++ TotalMemoryBlocks = (le32_to_cpu(mmt->PoolEnd) - le32_to_cpu(mmt->PoolStart)) / adev->memblocksize; ++ ++ log(L_DEBUG, "TotalMemoryBlocks=%u (%u bytes)\n", ++ TotalMemoryBlocks, TotalMemoryBlocks*adev->memblocksize); ++ ++ /* MemoryConfigOption.DMA_config bitmask: ++ access to ACX memory is to be done: ++ 0x00080000 using PCI conf space?! ++ 0x00040000 using IO instructions? ++ 0x00000000 using memory access instructions ++ 0x00020000 using local memory block linked list (else what?) ++ 0x00010000 using host indirect descriptors (else host must access ACX memory?) ++ */ ++#if defined (ACX_MEM) ++ /* ++ * ACX ignores DMA_config for generic slave mode. ++ */ ++ MemoryConfigOption.DMA_config = 0; ++ /* Declare start of the Rx host pool */ ++ MemoryConfigOption.pRxHostDesc = cpu2acx(0); ++ log(L_DEBUG, "pRxHostDesc 0x%08X, rxhostdesc_startphy 0x%lX\n", ++ acx2cpu(MemoryConfigOption.pRxHostDesc), ++ (long)adev->rxhostdesc_startphy); ++#else ++ if (IS_PCI(adev)) { ++ MemoryConfigOption.DMA_config = cpu_to_le32(0x30000); ++ /* Declare start of the Rx host pool */ ++ MemoryConfigOption.pRxHostDesc = cpu2acx(adev->rxhostdesc_startphy); ++ log(L_DEBUG, "pRxHostDesc 0x%08X, rxhostdesc_startphy 0x%lX\n", ++ acx2cpu(MemoryConfigOption.pRxHostDesc), ++ (long)adev->rxhostdesc_startphy); ++ } else { ++ MemoryConfigOption.DMA_config = cpu_to_le32(0x20000); ++ } ++#endif ++ ++ /* 50% of the allotment of memory blocks go to tx descriptors */ ++ TxBlockNum = TotalMemoryBlocks / 2; ++ MemoryConfigOption.TxBlockNum = cpu_to_le16(TxBlockNum); ++ ++ /* and 50% go to the rx descriptors */ ++ RxBlockNum = TotalMemoryBlocks - TxBlockNum; ++ MemoryConfigOption.RxBlockNum = cpu_to_le16(RxBlockNum); ++ ++ /* size of the tx and rx descriptor queues */ ++ TotalTxBlockSize = TxBlockNum * adev->memblocksize; ++ TotalRxBlockSize = RxBlockNum * adev->memblocksize; ++ log(L_DEBUG, "TxBlockNum %u RxBlockNum %u TotalTxBlockSize %u " ++ "TotalTxBlockSize %u\n", TxBlockNum, RxBlockNum, ++ TotalTxBlockSize, TotalRxBlockSize); ++ ++ ++ /* align the tx descriptor queue to an alignment of 0x20 (32 bytes) */ ++ MemoryConfigOption.rx_mem = ++ cpu_to_le32((le32_to_cpu(mmt->PoolStart) + 0x1f) & ~0x1f); ++ ++ /* align the rx descriptor queue to units of 0x20 ++ * and offset it by the tx descriptor queue */ ++ MemoryConfigOption.tx_mem = ++ cpu_to_le32((le32_to_cpu(mmt->PoolStart) + TotalRxBlockSize + 0x1f) & ~0x1f); ++ log(L_DEBUG, "rx_mem %08X rx_mem %08X\n", ++ MemoryConfigOption.tx_mem, MemoryConfigOption.rx_mem); ++ ++ /* alert the device to our decision */ ++ if (OK != acx_s_configure(adev, &MemoryConfigOption, ACX1xx_IE_MEMORY_CONFIG_OPTIONS)) { ++ goto bad; ++ } ++ ++ /* and tell the device to kick it into gear */ ++ if (OK != acx_s_issue_cmd(adev, ACX100_CMD_INIT_MEMORY, NULL, 0)) { ++ goto bad; ++ } ++#ifdef ACX_MEM ++ /* ++ * slave memory interface has to manage the transmit pools for the ACX, ++ * so it needs to know what we chose here. ++ */ ++ adev->acx_txbuf_start = MemoryConfigOption.tx_mem; ++ adev->acx_txbuf_numblocks = MemoryConfigOption.TxBlockNum; ++#endif ++ ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++** acx100_s_create_dma_regions ++** ++** Note that this fn messes up heavily with hardware, but we cannot ++** lock it (we need to sleep). Not a problem since IRQs can't happen ++*/ ++static int ++acx100_s_create_dma_regions(acx_device_t *adev) ++{ ++ acx100_ie_queueconfig_t queueconf; ++ acx_ie_memmap_t memmap; ++ int res = NOT_OK; ++ u32 tx_queue_start, rx_queue_start; ++ ++ FN_ENTER; ++ ++ /* read out the acx100 physical start address for the queues */ ++ if (OK != acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) { ++ goto fail; ++ } ++ ++ tx_queue_start = le32_to_cpu(memmap.QueueStart); ++ rx_queue_start = tx_queue_start + TX_CNT * sizeof(txdesc_t); ++ ++ log(L_DEBUG, "initializing Queue Indicator\n"); ++ ++ memset(&queueconf, 0, sizeof(queueconf)); ++ ++ /* Not needed for PCI or slave memory, so we can avoid setting them altogether */ ++ if (IS_USB(adev)) { ++ queueconf.NumTxDesc = USB_TX_CNT; ++ queueconf.NumRxDesc = USB_RX_CNT; ++ } ++ ++ /* calculate size of queues */ ++ queueconf.AreaSize = cpu_to_le32( ++ TX_CNT * sizeof(txdesc_t) + ++ RX_CNT * sizeof(rxdesc_t) + 8 ++ ); ++ queueconf.NumTxQueues = 1; /* number of tx queues */ ++ /* sets the beginning of the tx descriptor queue */ ++ queueconf.TxQueueStart = memmap.QueueStart; ++ /* done by memset: queueconf.TxQueuePri = 0; */ ++ queueconf.RxQueueStart = cpu_to_le32(rx_queue_start); ++ queueconf.QueueOptions = 1; /* auto reset descriptor */ ++ /* sets the end of the rx descriptor queue */ ++ queueconf.QueueEnd = cpu_to_le32( ++ rx_queue_start + RX_CNT * sizeof(rxdesc_t) ++ ); ++ /* sets the beginning of the next queue */ ++ queueconf.HostQueueEnd = cpu_to_le32(le32_to_cpu(queueconf.QueueEnd) + 8); ++ if (OK != acx_s_configure(adev, &queueconf, ACX1xx_IE_QUEUE_CONFIG)) { ++ goto fail; ++ } ++ ++#if defined (ACX_MEM) ++ /* sets the beginning of the rx descriptor queue, after the tx descrs */ ++ adev->acx_queue_indicator = ++ (queueindicator_t *) le32_to_cpu (queueconf.QueueEnd); ++ if (OK != acxmem_s_create_hostdesc_queues(adev)) ++ goto fail; ++ ++ acxmem_create_desc_queues(adev, tx_queue_start, rx_queue_start); ++#else ++ if (IS_PCI(adev)) { ++ /* sets the beginning of the rx descriptor queue, after the tx descrs */ ++ if (OK != acxpci_s_create_hostdesc_queues(adev)) ++ goto fail; ++ acxpci_create_desc_queues(adev, tx_queue_start, rx_queue_start); ++ } ++#endif ++ ++ if (OK != acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) { ++ goto fail; ++ } ++ ++ /* ++ * Have to make sure we skip past the Queue Indicator (QueueEnd) and Host Queue Indicator ++ * maps, each of which are 8 bytes and follow immediately after the transmit and ++ * receive queues. ++ */ ++ memmap.PoolStart = cpu_to_le32( ++ (le32_to_cpu(memmap.QueueEnd) + 4 + 0x1f) & ~0x1f ++ ); ++ ++ if (OK != acx_s_configure(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) { ++ goto fail; ++ } ++ ++ if (OK != acx100_s_init_memory_pools(adev, &memmap)) { ++ goto fail; ++ } ++ ++ res = OK; ++ goto end; ++ ++fail: ++ acx_s_msleep(1000); /* ? */ ++#if defined (ACX_MEM) ++ acxmem_free_desc_queues(adev); ++#else ++ if (IS_PCI(adev)) ++ acxpci_free_desc_queues(adev); ++#endif ++end: ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acx111_s_create_dma_regions ++** ++** Note that this fn messes heavily with hardware, but we cannot ++** lock it (we need to sleep). Not a problem since IRQs can't happen ++*/ ++#define ACX111_PERCENT(percent) ((percent)/5) ++ ++static int ++acx111_s_create_dma_regions(acx_device_t *adev) ++{ ++ struct acx111_ie_memoryconfig memconf; ++ struct acx111_ie_queueconfig queueconf; ++ u32 tx_queue_start, rx_queue_start; ++ ++ FN_ENTER; ++ ++ /* Calculate memory positions and queue sizes */ ++ ++ /* Set up our host descriptor pool + data pool */ ++#if defined (ACX_MEM) ++ if (OK != acxmem_s_create_hostdesc_queues(adev)) ++ goto fail; ++#else ++ if (IS_PCI(adev)) { ++ if (OK != acxpci_s_create_hostdesc_queues(adev)) ++ goto fail; ++ } ++#endif ++ ++ memset(&memconf, 0, sizeof(memconf)); ++ /* the number of STAs (STA contexts) to support ++ ** NB: was set to 1 and everything seemed to work nevertheless... */ ++ memconf.no_of_stations = cpu_to_le16(VEC_SIZE(adev->sta_list)); ++ /* specify the memory block size. Default is 256 */ ++ memconf.memory_block_size = cpu_to_le16(adev->memblocksize); ++ /* let's use 50%/50% for tx/rx (specify percentage, units of 5%) */ ++ memconf.tx_rx_memory_block_allocation = ACX111_PERCENT(50); ++ /* set the count of our queues ++ ** NB: struct acx111_ie_memoryconfig shall be modified ++ ** if we ever will switch to more than one rx and/or tx queue */ ++ memconf.count_rx_queues = 1; ++ memconf.count_tx_queues = 1; ++ /* 0 == Busmaster Indirect Memory Organization, which is what we want ++ * (using linked host descs with their allocated mem). ++ * 2 == Generic Bus Slave */ ++ /* done by memset: memconf.options = 0; */ ++ /* let's use 25% for fragmentations and 75% for frame transfers ++ * (specified in units of 5%) */ ++ memconf.fragmentation = ACX111_PERCENT(75); ++ /* Rx descriptor queue config */ ++ memconf.rx_queue1_count_descs = RX_CNT; ++ memconf.rx_queue1_type = 7; /* must be set to 7 */ ++ /* done by memset: memconf.rx_queue1_prio = 0; low prio */ ++#if defined (ACX_MEM) ++ memconf.rx_queue1_host_rx_start = cpu2acx(adev->rxhostdesc_startphy); ++#else ++ if (IS_PCI(adev)) { ++ memconf.rx_queue1_host_rx_start = cpu2acx(adev->rxhostdesc_startphy); ++ } ++#endif ++ /* Tx descriptor queue config */ ++ memconf.tx_queue1_count_descs = TX_CNT; ++ /* done by memset: memconf.tx_queue1_attributes = 0; lowest priority */ ++ ++ /* NB1: this looks wrong: (memconf,ACX1xx_IE_QUEUE_CONFIG), ++ ** (queueconf,ACX1xx_IE_MEMORY_CONFIG_OPTIONS) look swapped, eh? ++ ** But it is actually correct wrt IE numbers. ++ ** NB2: sizeof(memconf) == 28 == 0x1c but configure(ACX1xx_IE_QUEUE_CONFIG) ++ ** writes 0x20 bytes (because same IE for acx100 uses struct acx100_ie_queueconfig ++ ** which is 4 bytes larger. what a mess. TODO: clean it up) */ ++ if (OK != acx_s_configure(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG)) { ++ goto fail; ++ } ++ ++ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS); ++ ++ tx_queue_start = le32_to_cpu(queueconf.tx1_queue_address); ++ rx_queue_start = le32_to_cpu(queueconf.rx1_queue_address); ++ ++ log(L_INIT, "dump queue head (from card):\n" ++ "len: %u\n" ++ "tx_memory_block_address: %X\n" ++ "rx_memory_block_address: %X\n" ++ "tx1_queue address: %X\n" ++ "rx1_queue address: %X\n", ++ le16_to_cpu(queueconf.len), ++ le32_to_cpu(queueconf.tx_memory_block_address), ++ le32_to_cpu(queueconf.rx_memory_block_address), ++ tx_queue_start, ++ rx_queue_start); ++ ++#if defined (ACX_MEM) ++ acxmem_create_desc_queues(adev, tx_queue_start, rx_queue_start); ++#else ++ if (IS_PCI(adev)) ++ acxpci_create_desc_queues(adev, tx_queue_start, rx_queue_start); ++#endif ++ ++ FN_EXIT1(OK); ++ return OK; ++fail: ++#if defined (ACX_MEM) ++ acxmem_free_desc_queues(adev); ++#else ++ if (IS_PCI(adev)) ++ acxpci_free_desc_queues(adev); ++#endif ++ ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++static void ++acx_s_initialize_rx_config(acx_device_t *adev) ++{ ++ struct { ++ u16 id; ++ u16 len; ++ u16 rx_cfg1; ++ u16 rx_cfg2; ++ } ACX_PACKED cfg; ++ ++ switch (adev->mode) { ++ case ACX_MODE_OFF: ++ adev->rx_config_1 = (u16) (0 ++ /* | RX_CFG1_INCLUDE_RXBUF_HDR */ ++ /* | RX_CFG1_FILTER_SSID */ ++ /* | RX_CFG1_FILTER_BCAST */ ++ /* | RX_CFG1_RCV_MC_ADDR1 */ ++ /* | RX_CFG1_RCV_MC_ADDR0 */ ++ /* | RX_CFG1_FILTER_ALL_MULTI */ ++ /* | RX_CFG1_FILTER_BSSID */ ++ /* | RX_CFG1_FILTER_MAC */ ++ /* | RX_CFG1_RCV_PROMISCUOUS */ ++ /* | RX_CFG1_INCLUDE_FCS */ ++ /* | RX_CFG1_INCLUDE_PHY_HDR */ ++ ); ++ adev->rx_config_2 = (u16) (0 ++ /*| RX_CFG2_RCV_ASSOC_REQ */ ++ /*| RX_CFG2_RCV_AUTH_FRAMES */ ++ /*| RX_CFG2_RCV_BEACON_FRAMES */ ++ /*| RX_CFG2_RCV_CONTENTION_FREE */ ++ /*| RX_CFG2_RCV_CTRL_FRAMES */ ++ /*| RX_CFG2_RCV_DATA_FRAMES */ ++ /*| RX_CFG2_RCV_BROKEN_FRAMES */ ++ /*| RX_CFG2_RCV_MGMT_FRAMES */ ++ /*| RX_CFG2_RCV_PROBE_REQ */ ++ /*| RX_CFG2_RCV_PROBE_RESP */ ++ /*| RX_CFG2_RCV_ACK_FRAMES */ ++ /*| RX_CFG2_RCV_OTHER */ ++ ); ++ break; ++ case ACX_MODE_MONITOR: ++ adev->rx_config_1 = (u16) (0 ++ /* | RX_CFG1_INCLUDE_RXBUF_HDR */ ++ /* | RX_CFG1_FILTER_SSID */ ++ /* | RX_CFG1_FILTER_BCAST */ ++ /* | RX_CFG1_RCV_MC_ADDR1 */ ++ /* | RX_CFG1_RCV_MC_ADDR0 */ ++ /* | RX_CFG1_FILTER_ALL_MULTI */ ++ /* | RX_CFG1_FILTER_BSSID */ ++ /* | RX_CFG1_FILTER_MAC */ ++ | RX_CFG1_RCV_PROMISCUOUS ++ /* | RX_CFG1_INCLUDE_FCS */ ++ /* | RX_CFG1_INCLUDE_PHY_HDR */ ++ ); ++ adev->rx_config_2 = (u16) (0 ++ | RX_CFG2_RCV_ASSOC_REQ ++ | RX_CFG2_RCV_AUTH_FRAMES ++ | RX_CFG2_RCV_BEACON_FRAMES ++ | RX_CFG2_RCV_CONTENTION_FREE ++ | RX_CFG2_RCV_CTRL_FRAMES ++ | RX_CFG2_RCV_DATA_FRAMES ++ | RX_CFG2_RCV_BROKEN_FRAMES ++ | RX_CFG2_RCV_MGMT_FRAMES ++ | RX_CFG2_RCV_PROBE_REQ ++ | RX_CFG2_RCV_PROBE_RESP ++ | RX_CFG2_RCV_ACK_FRAMES ++ | RX_CFG2_RCV_OTHER ++ ); ++ break; ++ default: ++ adev->rx_config_1 = (u16) (0 ++ /* | RX_CFG1_INCLUDE_RXBUF_HDR */ ++ /* | RX_CFG1_FILTER_SSID */ ++ /* | RX_CFG1_FILTER_BCAST */ ++ /* | RX_CFG1_RCV_MC_ADDR1 */ ++ /* | RX_CFG1_RCV_MC_ADDR0 */ ++ /* | RX_CFG1_FILTER_ALL_MULTI */ ++ /* | RX_CFG1_FILTER_BSSID */ ++ | RX_CFG1_FILTER_MAC ++ /* | RX_CFG1_RCV_PROMISCUOUS */ ++ /* | RX_CFG1_INCLUDE_FCS */ ++ /* | RX_CFG1_INCLUDE_PHY_HDR */ ++ ); ++ adev->rx_config_2 = (u16) (0 ++ | RX_CFG2_RCV_ASSOC_REQ ++ | RX_CFG2_RCV_AUTH_FRAMES ++ | RX_CFG2_RCV_BEACON_FRAMES ++ | RX_CFG2_RCV_CONTENTION_FREE ++ | RX_CFG2_RCV_CTRL_FRAMES ++ | RX_CFG2_RCV_DATA_FRAMES ++ /*| RX_CFG2_RCV_BROKEN_FRAMES */ ++ | RX_CFG2_RCV_MGMT_FRAMES ++ | RX_CFG2_RCV_PROBE_REQ ++ | RX_CFG2_RCV_PROBE_RESP ++ /*| RX_CFG2_RCV_ACK_FRAMES */ ++ | RX_CFG2_RCV_OTHER ++ ); ++ break; ++ } ++ adev->rx_config_1 |= RX_CFG1_INCLUDE_RXBUF_HDR; ++ ++ if ((adev->rx_config_1 & RX_CFG1_INCLUDE_PHY_HDR) ++ || (adev->firmware_numver >= 0x02000000)) ++ adev->phy_header_len = IS_ACX111(adev) ? 8 : 4; ++ else ++ adev->phy_header_len = 0; ++ ++ log(L_INIT, "setting RXconfig to %04X:%04X\n", ++ adev->rx_config_1, adev->rx_config_2); ++ cfg.rx_cfg1 = cpu_to_le16(adev->rx_config_1); ++ cfg.rx_cfg2 = cpu_to_le16(adev->rx_config_2); ++ acx_s_configure(adev, &cfg, ACX1xx_IE_RXCONFIG); ++} ++ ++ ++/*********************************************************************** ++** acx_s_set_defaults ++*/ ++void ++acx_s_set_defaults(acx_device_t *adev) ++{ ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ /* do it before getting settings, prevent bogus channel 0 warning */ ++ adev->channel = 1; ++ ++ /* query some settings from the card. ++ * NOTE: for some settings, e.g. CCA and ED (ACX100!), an initial ++ * query is REQUIRED, otherwise the card won't work correctly! */ ++ adev->get_mask = GETSET_ANTENNA|GETSET_SENSITIVITY|GETSET_STATION_ID|GETSET_REG_DOMAIN; ++ /* Only ACX100 supports ED and CCA */ ++ if (IS_ACX100(adev)) ++ adev->get_mask |= GETSET_CCA|GETSET_ED_THRESH; ++ ++ acx_s_update_card_settings(adev); ++ ++ acx_lock(adev, flags); ++ ++ /* set our global interrupt mask */ ++#if defined (ACX_MEM) ++ acxmem_set_interrupt_mask(adev); ++#else ++ if (IS_PCI(adev)) ++ acxpci_set_interrupt_mask(adev); ++#endif ++ ++ adev->led_power = 1; /* LED is active on startup */ ++ adev->brange_max_quality = 60; /* LED blink max quality is 60 */ ++ adev->brange_time_last_state_change = jiffies; ++ ++ /* copy the MAC address we just got from the card ++ * into our MAC address used during current 802.11 session */ ++ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr); ++ MAC_BCAST(adev->ap); ++ ++ adev->essid_len = ++ snprintf(adev->essid, sizeof(adev->essid), "STA%02X%02X%02X", ++ adev->dev_addr[3], adev->dev_addr[4], adev->dev_addr[5]); ++ adev->essid_active = 1; ++ ++ /* we have a nick field to waste, so why not abuse it ++ * to announce the driver version? ;-) */ ++ strncpy(adev->nick, "acx " ACX_RELEASE, IW_ESSID_MAX_SIZE); ++ ++#if defined (ACX_MEM) ++ adev->reg_dom_id = adev->cfgopt_domains.list[0]; ++#else ++ if (IS_PCI(adev)) { /* FIXME: this should be made to apply to USB, too! */ ++ /* first regulatory domain entry in EEPROM == default reg. domain */ ++ adev->reg_dom_id = adev->cfgopt_domains.list[0]; ++ } ++#endif ++ ++ /* 0xffff would be better, but then we won't get a "scan complete" ++ * interrupt, so our current infrastructure will fail: */ ++ adev->scan_count = 1; ++ adev->scan_mode = ACX_SCAN_OPT_ACTIVE; ++ adev->scan_duration = 100; ++ adev->scan_probe_delay = 200; ++ /* reported to break scanning: adev->scan_probe_delay = adev->cfgopt_probe_delay; */ ++ adev->scan_rate = ACX_SCAN_RATE_1; ++ ++ adev->mode = ACX_MODE_2_STA; ++ adev->auth_alg = WLAN_AUTH_ALG_OPENSYSTEM; ++ adev->listen_interval = 100; ++ adev->beacon_interval = DEFAULT_BEACON_INTERVAL; ++ adev->dtim_interval = DEFAULT_DTIM_INTERVAL; ++ ++ adev->msdu_lifetime = DEFAULT_MSDU_LIFETIME; ++ ++ adev->rts_threshold = DEFAULT_RTS_THRESHOLD; ++ adev->frag_threshold = 2346; ++ ++ /* use standard default values for retry limits */ ++ adev->short_retry = 7; /* max. retries for (short) non-RTS packets */ ++ adev->long_retry = 4; /* max. retries for long (RTS) packets */ ++ ++ adev->preamble_mode = 2; /* auto */ ++ adev->fallback_threshold = 3; ++ adev->stepup_threshold = 10; ++ adev->rate_bcast = RATE111_1; ++ adev->rate_bcast100 = RATE100_1; ++ adev->rate_basic = RATE111_1 | RATE111_2; ++ adev->rate_auto = 1; ++ if (IS_ACX111(adev)) { ++ adev->rate_oper = RATE111_ALL; ++ } else { ++ adev->rate_oper = RATE111_ACX100_COMPAT; ++ } ++ ++ /* Supported Rates element - the rates here are given in units of ++ * 500 kbit/s, plus 0x80 added. See 802.11-1999.pdf item 7.3.2.2 */ ++ acx_l_update_ratevector(adev); ++ ++ /* set some more defaults */ ++ if (IS_ACX111(adev)) { ++ /* 30mW (15dBm) is default, at least in my acx111 card: */ ++ adev->tx_level_dbm = 15; ++ } else { ++ /* don't use max. level, since it might be dangerous ++ * (e.g. WRT54G people experience ++ * excessive Tx power damage!) */ ++ adev->tx_level_dbm = 18; ++ /* ++ * Lower power for the iPaq hx4700 ++ */ ++ if (IS_MEM(adev)) { ++ adev->tx_level_dbm = 14; ++ } ++ } ++ /* adev->tx_level_auto = 1; */ ++ if (IS_ACX111(adev)) { ++ /* start with sensitivity level 1 out of 3: */ ++ adev->sensitivity = 1; ++ } ++ ++/* #define ENABLE_POWER_SAVE */ ++#ifdef ENABLE_POWER_SAVE ++ adev->ps_wakeup_cfg = PS_CFG_ENABLE | PS_CFG_WAKEUP_ALL_BEAC; ++ adev->ps_listen_interval = 1; ++ adev->ps_options = PS_OPT_ENA_ENHANCED_PS | PS_OPT_TX_PSPOLL | PS_OPT_STILL_RCV_BCASTS; ++ adev->ps_hangover_period = 30; ++ adev->ps_enhanced_transition_time = 0; ++#else ++ adev->ps_wakeup_cfg = 0; ++ adev->ps_listen_interval = 0; ++ adev->ps_options = 0; ++ adev->ps_hangover_period = 0; ++ adev->ps_enhanced_transition_time = 0; ++#endif ++ ++ /* These settings will be set in fw on ifup */ ++ adev->set_mask = 0 ++ | GETSET_RETRY ++ | SET_MSDU_LIFETIME ++ /* configure card to do rate fallback when in auto rate mode */ ++ | SET_RATE_FALLBACK ++ | SET_RXCONFIG ++ | GETSET_TXPOWER ++ /* better re-init the antenna value we got above */ ++ | GETSET_ANTENNA ++#if POWER_SAVE_80211 ++ | GETSET_POWER_80211 ++#endif ++ ; ++ ++ acx_unlock(adev, flags); ++ acx_lock_unhold(); /* hold time 844814 CPU ticks @2GHz */ ++ ++ acx_s_initialize_rx_config(adev); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** FIXME: this should be solved in a general way for all radio types ++** by decoding the radio firmware module, ++** since it probably has some standard structure describing how to ++** set the power level of the radio module which it controls. ++** Or maybe not, since the radio module probably has a function interface ++** instead which then manages Tx level programming :-\ ++*/ ++static int ++acx111_s_set_tx_level(acx_device_t *adev, u8 level_dbm) ++{ ++ struct acx111_ie_tx_level tx_level; ++ ++ /* my acx111 card has two power levels in its configoptions (== EEPROM): ++ * 1 (30mW) [15dBm] ++ * 2 (10mW) [10dBm] ++ * For now, just assume all other acx111 cards have the same. ++ * FIXME: Ideally we would query it here, but we first need a ++ * standard way to query individual configoptions easily. ++ * Well, now we have proper cfgopt txpower variables, but this still ++ * hasn't been done yet, since it also requires dBm <-> mW conversion here... */ ++ if (level_dbm <= 12) { ++ tx_level.level = 2; /* 10 dBm */ ++ adev->tx_level_dbm = 10; ++ } else { ++ tx_level.level = 1; /* 15 dBm */ ++ adev->tx_level_dbm = 15; ++ } ++ if (level_dbm != adev->tx_level_dbm) ++ log(L_INIT, "acx111 firmware has specific " ++ "power levels only: adjusted %d dBm to %d dBm!\n", ++ level_dbm, adev->tx_level_dbm); ++ ++ return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL); ++} ++ ++static int ++acx_s_set_tx_level(acx_device_t *adev, u8 level_dbm) ++{ ++ if (IS_ACX111(adev)) { ++ return acx111_s_set_tx_level(adev, level_dbm); ++ } ++#if defined (ACX_MEM) ++ return acx100mem_s_set_tx_level(adev, level_dbm); ++#else ++ if (IS_PCI(adev)) { ++ return acx100pci_s_set_tx_level(adev, level_dbm); ++ } ++#endif ++ return OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++#ifdef UNUSED ++/* Returns the current tx level (ACX111) */ ++static u8 ++acx111_s_get_tx_level(acx_device_t *adev) ++{ ++ struct acx111_ie_tx_level tx_level; ++ ++ tx_level.level = 0; ++ acx_s_interrogate(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL); ++ return tx_level.level; ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_l_rxmonitor ++** Called from IRQ context only ++*/ ++static void ++acx_l_rxmonitor(acx_device_t *adev, const rxbuffer_t *rxbuf) ++{ ++ wlansniffrm_t *msg; ++ struct sk_buff *skb; ++ void *datap; ++ unsigned int skb_len; ++ int payload_offset; ++ ++ FN_ENTER; ++ ++ /* we are in big luck: the acx100 doesn't modify any of the fields */ ++ /* in the 802.11 frame. just pass this packet into the PF_PACKET */ ++ /* subsystem. yeah. */ ++ payload_offset = ((u8*)acx_get_wlan_hdr(adev, rxbuf) - (u8*)rxbuf); ++ skb_len = RXBUF_BYTES_USED(rxbuf) - payload_offset; ++ ++ /* sanity check */ ++ if (unlikely(skb_len > WLAN_A4FR_MAXLEN_WEP)) { ++ printk("%s: monitor mode panic: oversized frame!\n", ++ adev->ndev->name); ++ goto end; ++ } ++ ++ if (adev->ndev->type == ARPHRD_IEEE80211_PRISM) ++ skb_len += sizeof(*msg); ++ ++ /* allocate skb */ ++ skb = dev_alloc_skb(skb_len); ++ if (unlikely(!skb)) { ++ printk("%s: no memory for skb (%u bytes)\n", ++ adev->ndev->name, skb_len); ++ goto end; ++ } ++ ++ skb_put(skb, skb_len); ++ ++ if (adev->ndev->type == ARPHRD_IEEE80211) { ++ /* when in raw 802.11 mode, just copy frame as-is */ ++ datap = skb->data; ++ } else if (adev->ndev->type == ARPHRD_IEEE80211_PRISM) { ++ /* emulate prism header */ ++ msg = (wlansniffrm_t*)skb->data; ++ datap = msg + 1; ++ ++ msg->msgcode = WLANSNIFFFRM; ++ msg->msglen = sizeof(*msg); ++ strncpy(msg->devname, adev->ndev->name, sizeof(msg->devname)-1); ++ msg->devname[sizeof(msg->devname)-1] = '\0'; ++ ++ msg->hosttime.did = WLANSNIFFFRM_hosttime; ++ msg->hosttime.status = WLANITEM_STATUS_data_ok; ++ msg->hosttime.len = 4; ++ msg->hosttime.data = jiffies; ++ ++ msg->mactime.did = WLANSNIFFFRM_mactime; ++ msg->mactime.status = WLANITEM_STATUS_data_ok; ++ msg->mactime.len = 4; ++ msg->mactime.data = rxbuf->time; ++ ++ msg->channel.did = WLANSNIFFFRM_channel; ++ msg->channel.status = WLANITEM_STATUS_data_ok; ++ msg->channel.len = 4; ++ msg->channel.data = adev->channel; ++ ++ msg->rssi.did = WLANSNIFFFRM_rssi; ++ msg->rssi.status = WLANITEM_STATUS_no_value; ++ msg->rssi.len = 4; ++ msg->rssi.data = 0; ++ ++ msg->sq.did = WLANSNIFFFRM_sq; ++ msg->sq.status = WLANITEM_STATUS_no_value; ++ msg->sq.len = 4; ++ msg->sq.data = 0; ++ ++ msg->signal.did = WLANSNIFFFRM_signal; ++ msg->signal.status = WLANITEM_STATUS_data_ok; ++ msg->signal.len = 4; ++ msg->signal.data = rxbuf->phy_snr; ++ ++ msg->noise.did = WLANSNIFFFRM_noise; ++ msg->noise.status = WLANITEM_STATUS_data_ok; ++ msg->noise.len = 4; ++ msg->noise.data = rxbuf->phy_level; ++ ++ msg->rate.did = WLANSNIFFFRM_rate; ++ msg->rate.status = WLANITEM_STATUS_data_ok; ++ msg->rate.len = 4; ++ msg->rate.data = rxbuf->phy_plcp_signal / 5; ++ ++ msg->istx.did = WLANSNIFFFRM_istx; ++ msg->istx.status = WLANITEM_STATUS_data_ok; ++ msg->istx.len = 4; ++ msg->istx.data = 0; /* tx=0: it's not a tx packet */ ++ ++ skb_len -= sizeof(*msg); ++ ++ msg->frmlen.did = WLANSNIFFFRM_signal; ++ msg->frmlen.status = WLANITEM_STATUS_data_ok; ++ msg->frmlen.len = 4; ++ msg->frmlen.data = skb_len; ++ } else { ++ printk("acx: unsupported netdev type %d!\n", adev->ndev->type); ++ dev_kfree_skb(skb); ++ return; ++ } ++ ++ /* sanity check (keep it here) */ ++ if (unlikely((int)skb_len < 0)) { ++ printk("acx: skb_len=%d. Driver bug, please report\n", (int)skb_len); ++ dev_kfree_skb(skb); ++ return; ++ } ++ memcpy(datap, ((unsigned char*)rxbuf)+payload_offset, skb_len); ++ ++ skb->dev = adev->ndev; ++ skb->dev->last_rx = jiffies; ++ ++ skb_reset_mac_header(skb); ++ skb->ip_summed = CHECKSUM_NONE; ++ skb->pkt_type = PACKET_OTHERHOST; ++ skb->protocol = htons(ETH_P_80211_RAW); ++ netif_rx(skb); ++ ++ adev->stats.rx_packets++; ++ adev->stats.rx_bytes += skb->len; ++ ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_rx_ieee802_11_frame ++** ++** Called from IRQ context only ++*/ ++ ++/* All these contortions are for saner dup logging ++** ++** We want: (a) to know about excessive dups ++** (b) to not spam kernel log about occasional dups ++** ++** 1/64 threshold was chosen by running "ping -A" ++** It gave "rx: 59 DUPs in 2878 packets" only with 4 parallel ++** "ping -A" streams running. */ ++/* 2005-10-11: bumped up to 1/8 ++** subtract a $smallint from dup_count in order to ++** avoid "2 DUPs in 19 packets" messages */ ++static inline int ++acx_l_handle_dup(acx_device_t *adev, u16 seq) ++{ ++ if (adev->dup_count) { ++ adev->nondup_count++; ++ if (time_after(jiffies, adev->dup_msg_expiry)) { ++ /* Log only if more than 1 dup in 64 packets */ ++ if (adev->nondup_count/8 < adev->dup_count-5) { ++ printk(KERN_INFO "%s: rx: %d DUPs in " ++ "%d packets received in 10 secs\n", ++ adev->ndev->name, ++ adev->dup_count, ++ adev->nondup_count); ++ } ++ adev->dup_count = 0; ++ adev->nondup_count = 0; ++ } ++ } ++ if (unlikely(seq == adev->last_seq_ctrl)) { ++ if (!adev->dup_count++) ++ adev->dup_msg_expiry = jiffies + 10*HZ; ++ adev->stats.rx_errors++; ++ return 1; /* a dup */ ++ } ++ adev->last_seq_ctrl = seq; ++ return 0; ++} ++ ++static int ++acx_l_rx_ieee802_11_frame(acx_device_t *adev, rxbuffer_t *rxbuf) ++{ ++ unsigned int ftype, fstype; ++ const wlan_hdr_t *hdr; ++ int result = NOT_OK; ++ ++ FN_ENTER; ++ ++ hdr = acx_get_wlan_hdr(adev, rxbuf); ++ ++ /* see IEEE 802.11-1999.pdf chapter 7 "MAC frame formats" */ ++ if (unlikely((hdr->fc & WF_FC_PVERi) != 0)) { ++ printk_ratelimited(KERN_INFO "rx: unsupported 802.11 protocol\n"); ++ goto end; ++ } ++ ++ ftype = hdr->fc & WF_FC_FTYPEi; ++ fstype = hdr->fc & WF_FC_FSTYPEi; ++ ++ switch (ftype) { ++ /* check data frames first, for speed */ ++ case WF_FTYPE_DATAi: ++ switch (fstype) { ++ case WF_FSTYPE_DATAONLYi: ++ if (acx_l_handle_dup(adev, hdr->seq)) ++ break; /* a dup, simply discard it */ ++ ++ /* TODO: ++ if (WF_FC_FROMTODSi == (hdr->fc & WF_FC_FROMTODSi)) { ++ result = acx_l_process_data_frame_wds(adev, rxbuf); ++ break; ++ } ++ */ ++ ++ switch (adev->mode) { ++ case ACX_MODE_3_AP: ++ result = acx_l_process_data_frame_master(adev, rxbuf); ++ break; ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ result = acx_l_process_data_frame_client(adev, rxbuf); ++ break; ++ } ++ case WF_FSTYPE_DATA_CFACKi: ++ case WF_FSTYPE_DATA_CFPOLLi: ++ case WF_FSTYPE_DATA_CFACK_CFPOLLi: ++ case WF_FSTYPE_CFPOLLi: ++ case WF_FSTYPE_CFACK_CFPOLLi: ++ /* see above. ++ acx_process_class_frame(adev, rxbuf, 3); */ ++ break; ++ case WF_FSTYPE_NULLi: ++ /* acx_l_process_NULL_frame(adev, rxbuf, 3); */ ++ break; ++ /* FIXME: same here, see above */ ++ case WF_FSTYPE_CFACKi: ++ default: ++ break; ++ } ++ break; ++ case WF_FTYPE_MGMTi: ++ result = acx_l_process_mgmt_frame(adev, rxbuf); ++ break; ++ case WF_FTYPE_CTLi: ++ if (fstype == WF_FSTYPE_PSPOLLi) ++ result = OK; ++ /* this call is irrelevant, since ++ * acx_process_class_frame is a stub, so return ++ * immediately instead. ++ * return acx_process_class_frame(adev, rxbuf, 3); */ ++ break; ++ default: ++ break; ++ } ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_rxbuf ++** ++** NB: used by USB code also ++*/ ++void ++acx_l_process_rxbuf(acx_device_t *adev, rxbuffer_t *rxbuf) ++{ ++ struct wlan_hdr *hdr; ++ unsigned int qual; ++ int buf_len; ++ u16 fc; ++ ++ hdr = acx_get_wlan_hdr(adev, rxbuf); ++ fc = le16_to_cpu(hdr->fc); ++ /* length of frame from control field to first byte of FCS */ ++ buf_len = RXBUF_BYTES_RCVD(adev, rxbuf); ++ ++ if ( ((WF_FC_FSTYPE & fc) != WF_FSTYPE_BEACON) ++ || (acx_debug & L_XFER_BEACON) ++ ) { ++ log(L_XFER|L_DATA, "rx: %s " ++ "time:%u len:%u signal:%u SNR:%u macstat:%02X " ++ "phystat:%02X phyrate:%u status:%u\n", ++ acx_get_packet_type_string(fc), ++ le32_to_cpu(rxbuf->time), ++ buf_len, ++ acx_signal_to_winlevel(rxbuf->phy_level), ++ acx_signal_to_winlevel(rxbuf->phy_snr), ++ rxbuf->mac_status, ++ rxbuf->phy_stat_baseband, ++ rxbuf->phy_plcp_signal, ++ adev->status); ++ } ++ ++ if (unlikely(acx_debug & L_DATA)) { ++ printk("rx: 802.11 buf[%u]: ", buf_len); ++ acx_dump_bytes(hdr, buf_len); ++ } ++ ++ /* FIXME: should check for Rx errors (rxbuf->mac_status? ++ * discard broken packets - but NOT for monitor!) ++ * and update Rx packet statistics here */ ++ ++ if (unlikely(adev->mode == ACX_MODE_MONITOR)) { ++ acx_l_rxmonitor(adev, rxbuf); ++ } else if (likely(buf_len >= WLAN_HDR_A3_LEN)) { ++ acx_l_rx_ieee802_11_frame(adev, rxbuf); ++ } else { ++ log(L_DEBUG|L_XFER|L_DATA, ++ "rx: NOT receiving packet (%s): " ++ "size too small (%u)\n", ++ acx_get_packet_type_string(fc), ++ buf_len); ++ } ++ ++ /* Now check Rx quality level, AFTER processing packet. ++ * I tried to figure out how to map these levels to dBm ++ * values, but for the life of me I really didn't ++ * manage to get it. Either these values are not meant to ++ * be expressed in dBm, or it's some pretty complicated ++ * calculation. */ ++ ++#ifdef FROM_SCAN_SOURCE_ONLY ++ /* only consider packets originating from the MAC ++ * address of the device that's managing our BSSID. ++ * Disable it for now, since it removes information (levels ++ * from different peers) and slows the Rx path. */ ++ if (adev->ap_client ++ && mac_is_equal(hdr->a2, adev->ap_client->address)) { ++#endif ++ adev->wstats.qual.level = acx_signal_to_winlevel(rxbuf->phy_level); ++ adev->wstats.qual.noise = acx_signal_to_winlevel(rxbuf->phy_snr); ++#ifndef OLD_QUALITY ++ qual = acx_signal_determine_quality(adev->wstats.qual.level, ++ adev->wstats.qual.noise); ++#else ++ qual = (adev->wstats.qual.noise <= 100) ? ++ 100 - adev->wstats.qual.noise : 0; ++#endif ++ adev->wstats.qual.qual = qual; ++ adev->wstats.qual.updated = 7; /* all 3 indicators updated */ ++#ifdef FROM_SCAN_SOURCE_ONLY ++ } ++#endif ++} ++ ++ ++/*********************************************************************** ++** acx_l_handle_txrate_auto ++** ++** Theory of operation: ++** client->rate_cap is a bitmask of rates client is capable of. ++** client->rate_cfg is a bitmask of allowed (configured) rates. ++** It is set as a result of iwconfig rate N [auto] ++** or iwpriv set_rates "N,N,N N,N,N" commands. ++** It can be fixed (e.g. 0x0080 == 18Mbit only), ++** auto (0x00ff == 18Mbit or any lower value), ++** and code handles any bitmask (0x1081 == try 54Mbit,18Mbit,1Mbit _only_). ++** ++** client->rate_cur is a value for rate111 field in tx descriptor. ++** It is always set to txrate_cfg sans zero or more most significant ++** bits. This routine handles selection of new rate_cur value depending on ++** outcome of last tx event. ++** ++** client->rate_100 is a precalculated rate value for acx100 ++** (we can do without it, but will need to calculate it on each tx). ++** ++** You cannot configure mixed usage of 5.5 and/or 11Mbit rate ++** with PBCC and CCK modulation. Either both at CCK or both at PBCC. ++** In theory you can implement it, but so far it is considered not worth doing. ++** ++** 22Mbit, of course, is PBCC always. */ ++ ++/* maps acx100 tx descr rate field to acx111 one */ ++static u16 ++rate100to111(u8 r) ++{ ++ switch (r) { ++ case RATE100_1: return RATE111_1; ++ case RATE100_2: return RATE111_2; ++ case RATE100_5: ++ case (RATE100_5 | RATE100_PBCC511): return RATE111_5; ++ case RATE100_11: ++ case (RATE100_11 | RATE100_PBCC511): return RATE111_11; ++ case RATE100_22: return RATE111_22; ++ default: ++ printk("acx: unexpected acx100 txrate: %u! " ++ "Please report\n", r); ++ return RATE111_1; ++ } ++} ++ ++ ++void ++acx_l_handle_txrate_auto(acx_device_t *adev, struct client *txc, ++ u16 cur, u8 rate100, u16 rate111, ++ u8 error, int pkts_to_ignore) ++{ ++ u16 sent_rate; ++ int slower_rate_was_used; ++ ++ /* vda: hmm. current code will do this: ++ ** 1. send packets at 11 Mbit, stepup++ ++ ** 2. will try to send at 22Mbit. hardware will see no ACK, ++ ** retries at 11Mbit, success. code notes that used rate ++ ** is lower. stepup = 0, fallback++ ++ ** 3. repeat step 2 fallback_count times. Fall back to ++ ** 11Mbit. go to step 1. ++ ** If stepup_count is large (say, 16) and fallback_count ++ ** is small (3), this wouldn't be too bad wrt throughput */ ++ ++ if (unlikely(!cur)) { ++ printk("acx: BUG! ratemask is empty\n"); ++ return; /* or else we may lock up the box */ ++ } ++ ++ /* do some preparations, i.e. calculate the one rate that was ++ * used to send this packet */ ++ if (IS_ACX111(adev)) { ++ sent_rate = 1 << highest_bit(rate111 & RATE111_ALL); ++ } else { ++ sent_rate = rate100to111(rate100); ++ } ++ /* sent_rate has only one bit set now, corresponding to tx rate ++ * which was used by hardware to tx this particular packet */ ++ ++ /* now do the actual auto rate management */ ++ log(L_XFER, "tx: %sclient=%p/"MACSTR" used=%04X cur=%04X cfg=%04X " ++ "__=%u/%u ^^=%u/%u\n", ++ (txc->ignore_count > 0) ? "[IGN] " : "", ++ txc, MAC(txc->address), sent_rate, cur, txc->rate_cfg, ++ txc->fallback_count, adev->fallback_threshold, ++ txc->stepup_count, adev->stepup_threshold ++ ); ++ ++ /* we need to ignore old packets already in the tx queue since ++ * they use older rate bytes configured before our last rate change, ++ * otherwise our mechanism will get confused by interpreting old data. ++ * Do it after logging above */ ++ if (txc->ignore_count) { ++ txc->ignore_count--; ++ return; ++ } ++ ++ /* true only if the only nonzero bit in sent_rate is ++ ** less significant than highest nonzero bit in cur */ ++ slower_rate_was_used = ( cur > ((sent_rate<<1)-1) ); ++ ++ if (slower_rate_was_used || error) { ++ txc->stepup_count = 0; ++ if (++txc->fallback_count <= adev->fallback_threshold) ++ return; ++ txc->fallback_count = 0; ++ ++ /* clear highest 1 bit in cur */ ++ sent_rate = RATE111_54; ++ while (!(cur & sent_rate)) sent_rate >>= 1; ++ CLEAR_BIT(cur, sent_rate); ++ if (!cur) /* we can't disable all rates! */ ++ cur = sent_rate; ++ log(L_XFER, "tx: falling back to ratemask %04X\n", cur); ++ ++ } else { /* there was neither lower rate nor error */ ++ txc->fallback_count = 0; ++ if (++txc->stepup_count <= adev->stepup_threshold) ++ return; ++ txc->stepup_count = 0; ++ ++ /* Sanitize. Sort of not needed, but I dont trust hw that much... ++ ** what if it can report bogus tx rates sometimes? */ ++ while (!(cur & sent_rate)) sent_rate >>= 1; ++ ++ /* try to find a higher sent_rate that isn't yet in our ++ * current set, but is an allowed cfg */ ++ while (1) { ++ sent_rate <<= 1; ++ if (sent_rate > txc->rate_cfg) ++ /* no higher rates allowed by config */ ++ return; ++ if (!(cur & sent_rate) && (txc->rate_cfg & sent_rate)) ++ /* found */ ++ break; ++ /* not found, try higher one */ ++ } ++ SET_BIT(cur, sent_rate); ++ log(L_XFER, "tx: stepping up to ratemask %04X\n", cur); ++ } ++ ++ txc->rate_cur = cur; ++ txc->ignore_count = pkts_to_ignore; ++ /* calculate acx100 style rate byte if needed */ ++ if (IS_ACX100(adev)) { ++ txc->rate_100 = acx_bitpos2rate100[highest_bit(cur)]; ++ } ++} ++ ++ ++/*********************************************************************** ++** acx_i_start_xmit ++** ++** Called by network core. Can be called outside of process context. ++*/ ++int ++acx_i_start_xmit(struct sk_buff *skb, struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ tx_t *tx; ++ void *txbuf; ++ unsigned long flags; ++ int txresult = NOT_OK; ++ int len; ++ ++ FN_ENTER; ++ ++ if (unlikely(!skb)) { ++ /* indicate success */ ++ txresult = OK; ++ goto end_no_unlock; ++ } ++ if (unlikely(!adev)) { ++ goto end_no_unlock; ++ } ++ ++ acx_lock(adev, flags); ++ ++ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) { ++ goto end; ++ } ++ if (unlikely(adev->mode == ACX_MODE_OFF)) { ++ goto end; ++ } ++ if (unlikely(acx_queue_stopped(ndev))) { ++ log(L_DEBUG, "%s: called when queue stopped\n", __func__); ++ goto end; ++ } ++ if (unlikely(ACX_STATUS_4_ASSOCIATED != adev->status)) { ++ log(L_XFER, "trying to xmit, but not associated yet: " ++ "aborting...\n"); ++ /* silently drop the packet, since we're not connected yet */ ++ txresult = OK; ++ /* ...but indicate an error nevertheless */ ++ adev->stats.tx_errors++; ++ goto end; ++ } ++ ++ tx = acx_l_alloc_tx(adev); ++ if (unlikely(!tx)) { ++#ifndef ACX_MEM ++ /* ++ * generic slave interface has to make do with the tiny amount, around ++ * 7k, of transmit buffer space on the ACX itself. It is likely this will ++ * frequently be full. ++ */ ++ printk_ratelimited("%s: start_xmit: txdesc ring is full, " ++ "dropping tx\n", ndev->name); ++#endif ++ txresult = NOT_OK; ++ goto end; ++ } ++ ++ txbuf = acx_l_get_txbuf(adev, tx); ++ if (unlikely(!txbuf)) { ++ /* Card was removed */ ++ txresult = NOT_OK; ++ acx_l_dealloc_tx(adev, tx); ++ goto end; ++ } ++ len = acx_ether_to_txbuf(adev, txbuf, skb); ++ if (unlikely(len < 0)) { ++ /* Error in packet conversion */ ++ txresult = NOT_OK; ++ acx_l_dealloc_tx(adev, tx); ++ goto end; ++ } ++ acx_l_tx_data(adev, tx, len); ++ ndev->trans_start = jiffies; ++ ++ txresult = OK; ++ adev->stats.tx_packets++; ++ adev->stats.tx_bytes += skb->len; ++ ++end: ++ acx_unlock(adev, flags); ++ ++end_no_unlock: ++ if ((txresult == OK) && skb) ++ dev_kfree_skb_any(skb); ++ ++ FN_EXIT1(txresult); ++ return txresult; ++} ++ ++ ++/*********************************************************************** ++** acx_l_update_ratevector ++** ++** Updates adev->rate_supported[_len] according to rate_{basic,oper} ++*/ ++const u8 ++acx_bitpos2ratebyte[] = { ++ DOT11RATEBYTE_1, ++ DOT11RATEBYTE_2, ++ DOT11RATEBYTE_5_5, ++ DOT11RATEBYTE_6_G, ++ DOT11RATEBYTE_9_G, ++ DOT11RATEBYTE_11, ++ DOT11RATEBYTE_12_G, ++ DOT11RATEBYTE_18_G, ++ DOT11RATEBYTE_22, ++ DOT11RATEBYTE_24_G, ++ DOT11RATEBYTE_36_G, ++ DOT11RATEBYTE_48_G, ++ DOT11RATEBYTE_54_G, ++}; ++ ++void ++acx_l_update_ratevector(acx_device_t *adev) ++{ ++ u16 bcfg = adev->rate_basic; ++ u16 ocfg = adev->rate_oper; ++ u8 *supp = adev->rate_supported; ++ const u8 *dot11 = acx_bitpos2ratebyte; ++ ++ FN_ENTER; ++ ++ while (ocfg) { ++ if (ocfg & 1) { ++ *supp = *dot11; ++ if (bcfg & 1) { ++ *supp |= 0x80; ++ } ++ supp++; ++ } ++ dot11++; ++ ocfg >>= 1; ++ bcfg >>= 1; ++ } ++ adev->rate_supported_len = supp - adev->rate_supported; ++ if (acx_debug & L_ASSOC) { ++ printk("new ratevector: "); ++ acx_dump_bytes(adev->rate_supported, adev->rate_supported_len); ++ } ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_sta_list_init ++*/ ++static void ++acx_l_sta_list_init(acx_device_t *adev) ++{ ++ FN_ENTER; ++ memset(adev->sta_hash_tab, 0, sizeof(adev->sta_hash_tab)); ++ memset(adev->sta_list, 0, sizeof(adev->sta_list)); ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_sta_list_get_from_hash ++*/ ++static inline client_t* ++acx_l_sta_list_get_from_hash(acx_device_t *adev, const u8 *address) ++{ ++ return adev->sta_hash_tab[address[5] % VEC_SIZE(adev->sta_hash_tab)]; ++} ++ ++ ++/*********************************************************************** ++** acx_l_sta_list_get ++*/ ++client_t* ++acx_l_sta_list_get(acx_device_t *adev, const u8 *address) ++{ ++ client_t *client; ++ FN_ENTER; ++ client = acx_l_sta_list_get_from_hash(adev, address); ++ while (client) { ++ if (mac_is_equal(address, client->address)) { ++ client->mtime = jiffies; ++ break; ++ } ++ client = client->next; ++ } ++ FN_EXIT0; ++ return client; ++} ++ ++ ++/*********************************************************************** ++** acx_l_sta_list_del ++*/ ++void ++acx_l_sta_list_del(acx_device_t *adev, client_t *victim) ++{ ++ client_t *client, *next; ++ ++ client = acx_l_sta_list_get_from_hash(adev, victim->address); ++ next = client; ++ /* tricky. next = client on first iteration only, ++ ** on all other iters next = client->next */ ++ while (next) { ++ if (next == victim) { ++ client->next = victim->next; ++ /* Overkill */ ++ memset(victim, 0, sizeof(*victim)); ++ break; ++ } ++ client = next; ++ next = client->next; ++ } ++} ++ ++ ++/*********************************************************************** ++** acx_l_sta_list_alloc ++** ++** Never fails - will evict oldest client if needed ++*/ ++static client_t* ++acx_l_sta_list_alloc(acx_device_t *adev) ++{ ++ int i; ++ unsigned long age, oldest_age; ++ client_t *client, *oldest; ++ ++ FN_ENTER; ++ ++ oldest = &adev->sta_list[0]; ++ oldest_age = 0; ++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) { ++ client = &adev->sta_list[i]; ++ ++ if (!client->used) { ++ goto found; ++ } else { ++ age = jiffies - client->mtime; ++ if (oldest_age < age) { ++ oldest_age = age; ++ oldest = client; ++ } ++ } ++ } ++ acx_l_sta_list_del(adev, oldest); ++ client = oldest; ++found: ++ memset(client, 0, sizeof(*client)); ++ FN_EXIT0; ++ return client; ++} ++ ++ ++/*********************************************************************** ++** acx_l_sta_list_add ++** ++** Never fails - will evict oldest client if needed ++*/ ++/* In case we will reimplement it differently... */ ++#define STA_LIST_ADD_CAN_FAIL 0 ++ ++static client_t* ++acx_l_sta_list_add(acx_device_t *adev, const u8 *address) ++{ ++ client_t *client; ++ int index; ++ ++ FN_ENTER; ++ ++ client = acx_l_sta_list_alloc(adev); ++ ++ client->mtime = jiffies; ++ MAC_COPY(client->address, address); ++ client->used = CLIENT_EXIST_1; ++ client->auth_alg = WLAN_AUTH_ALG_SHAREDKEY; ++ client->auth_step = 1; ++ /* give some tentative peer rate values ++ ** (needed because peer may do auth without probing us first, ++ ** thus we'll have no idea of peer's ratevector yet). ++ ** Will be overwritten by scanning or assoc code */ ++ client->rate_cap = adev->rate_basic; ++ client->rate_cfg = adev->rate_basic; ++ client->rate_cur = 1 << lowest_bit(adev->rate_basic); ++ ++ index = address[5] % VEC_SIZE(adev->sta_hash_tab); ++ client->next = adev->sta_hash_tab[index]; ++ adev->sta_hash_tab[index] = client; ++ ++ acxlog_mac(L_ASSOC, "sta_list_add: sta=", address, "\n"); ++ ++ FN_EXIT0; ++ return client; ++} ++ ++ ++/*********************************************************************** ++** acx_l_sta_list_get_or_add ++** ++** Never fails - will evict oldest client if needed ++*/ ++static client_t* ++acx_l_sta_list_get_or_add(acx_device_t *adev, const u8 *address) ++{ ++ client_t *client = acx_l_sta_list_get(adev, address); ++ if (!client) ++ client = acx_l_sta_list_add(adev, address); ++ return client; ++} ++ ++ ++/*********************************************************************** ++** acx_set_status ++** ++** This function is called in many atomic regions, must not sleep ++** ++** This function does not need locking UNLESS you call it ++** as acx_set_status(ACX_STATUS_4_ASSOCIATED), bacause this can ++** wake queue. This can race with stop_queue elsewhere. ++** See acx_stop_queue comment. */ ++void ++acx_set_status(acx_device_t *adev, u16 new_status) ++{ ++#define QUEUE_OPEN_AFTER_ASSOC 1 /* this really seems to be needed now */ ++ u16 old_status = adev->status; ++ ++ FN_ENTER; ++ ++ log(L_ASSOC, "%s(%d):%s\n", ++ __func__, new_status, acx_get_status_name(new_status)); ++ ++ /* wireless_send_event never sleeps */ ++ if (ACX_STATUS_4_ASSOCIATED == new_status) { ++ union iwreq_data wrqu; ++ ++ wrqu.data.length = 0; ++ wrqu.data.flags = 0; ++ wireless_send_event(adev->ndev, SIOCGIWSCAN, &wrqu, NULL); ++ ++ wrqu.data.length = 0; ++ wrqu.data.flags = 0; ++ MAC_COPY(wrqu.ap_addr.sa_data, adev->bssid); ++ wrqu.ap_addr.sa_family = ARPHRD_ETHER; ++ wireless_send_event(adev->ndev, SIOCGIWAP, &wrqu, NULL); ++ } else { ++ union iwreq_data wrqu; ++ ++ /* send event with empty BSSID to indicate we're not associated */ ++ MAC_ZERO(wrqu.ap_addr.sa_data); ++ wrqu.ap_addr.sa_family = ARPHRD_ETHER; ++ wireless_send_event(adev->ndev, SIOCGIWAP, &wrqu, NULL); ++ } ++ ++ adev->status = new_status; ++ ++ switch (new_status) { ++ case ACX_STATUS_1_SCANNING: ++ adev->scan_retries = 0; ++ /* 1.0 s initial scan time */ ++ acx_set_timer(adev, 1000000); ++ break; ++ case ACX_STATUS_2_WAIT_AUTH: ++ case ACX_STATUS_3_AUTHENTICATED: ++ adev->auth_or_assoc_retries = 0; ++ acx_set_timer(adev, 1500000); /* 1.5 s */ ++ break; ++ } ++ ++#if QUEUE_OPEN_AFTER_ASSOC ++ if (new_status == ACX_STATUS_4_ASSOCIATED) { ++ if (old_status < ACX_STATUS_4_ASSOCIATED) { ++ /* ah, we're newly associated now, ++ * so let's indicate carrier */ ++ acx_carrier_on(adev->ndev, "after association"); ++ acx_wake_queue(adev->ndev, "after association"); ++ } ++ } else { ++ /* not associated any more, so let's kill carrier */ ++ if (old_status >= ACX_STATUS_4_ASSOCIATED) { ++ acx_carrier_off(adev->ndev, "after losing association"); ++ acx_stop_queue(adev->ndev, "after losing association"); ++ } ++ } ++#endif ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_i_timer ++** ++** Fires up periodically. Used to kick scan/auth/assoc if something goes wrong ++*/ ++void ++acx_i_timer(unsigned long address) ++{ ++ unsigned long flags; ++ acx_device_t *adev = (acx_device_t*)address; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ ++ log(L_DEBUG|L_ASSOC, "%s: adev->status=%d (%s)\n", ++ __func__, adev->status, acx_get_status_name(adev->status)); ++ ++ switch (adev->status) { ++ case ACX_STATUS_1_SCANNING: ++ /* was set to 0 by set_status() */ ++ if (++adev->scan_retries < 7) { ++ acx_set_timer(adev, 1000000); ++ /* used to interrogate for scan status. ++ ** We rely on SCAN_COMPLETE IRQ instead */ ++ log(L_ASSOC, "continuing scan (%d sec)\n", ++ adev->scan_retries); ++ } else { ++ log(L_ASSOC, "stopping scan\n"); ++ /* send stop_scan cmd when we leave the interrupt context, ++ * and make a decision what to do next (COMPLETE_SCAN) */ ++ acx_schedule_task(adev, ++ ACX_AFTER_IRQ_CMD_STOP_SCAN + ACX_AFTER_IRQ_COMPLETE_SCAN); ++ } ++ break; ++ case ACX_STATUS_2_WAIT_AUTH: ++ /* was set to 0 by set_status() */ ++ if (++adev->auth_or_assoc_retries < 10) { ++ log(L_ASSOC, "resend authen1 request (attempt %d)\n", ++ adev->auth_or_assoc_retries + 1); ++ acx_l_transmit_authen1(adev); ++ } else { ++ /* time exceeded: fall back to scanning mode */ ++ log(L_ASSOC, ++ "authen1 request reply timeout, giving up\n"); ++ /* we are a STA, need to find AP anyhow */ ++ acx_set_status(adev, ACX_STATUS_1_SCANNING); ++ acx_schedule_task(adev, ACX_AFTER_IRQ_RESTART_SCAN); ++ } ++ /* used to be 1500000, but some other driver uses 2.5s */ ++ acx_set_timer(adev, 2500000); ++ break; ++ case ACX_STATUS_3_AUTHENTICATED: ++ /* was set to 0 by set_status() */ ++ if (++adev->auth_or_assoc_retries < 10) { ++ log(L_ASSOC, "resend assoc request (attempt %d)\n", ++ adev->auth_or_assoc_retries + 1); ++ acx_l_transmit_assoc_req(adev); ++ } else { ++ /* time exceeded: give up */ ++ log(L_ASSOC, ++ "association request reply timeout, giving up\n"); ++ /* we are a STA, need to find AP anyhow */ ++ acx_set_status(adev, ACX_STATUS_1_SCANNING); ++ acx_schedule_task(adev, ACX_AFTER_IRQ_RESTART_SCAN); ++ } ++ acx_set_timer(adev, 2500000); /* see above */ ++ break; ++ case ACX_STATUS_4_ASSOCIATED: ++ default: ++ break; ++ } ++ ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_set_timer ++** ++** Sets the 802.11 state management timer's timeout. ++*/ ++void ++acx_set_timer(acx_device_t *adev, int timeout_us) ++{ ++ FN_ENTER; ++ ++ log(L_DEBUG|L_IRQ, "%s(%u ms)\n", __func__, timeout_us/1000); ++ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) { ++ printk("attempt to set the timer " ++ "when the card interface is not up!\n"); ++ goto end; ++ } ++ ++ /* first check if the timer was already initialized, THEN modify it */ ++ if (adev->mgmt_timer.function) { ++ mod_timer(&adev->mgmt_timer, ++ jiffies + (timeout_us * HZ / 1000000)); ++ } ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_transmit_assocresp ++** ++** We are an AP here ++*/ ++static const u8 ++dot11ratebyte[] = { ++ DOT11RATEBYTE_1, ++ DOT11RATEBYTE_2, ++ DOT11RATEBYTE_5_5, ++ DOT11RATEBYTE_6_G, ++ DOT11RATEBYTE_9_G, ++ DOT11RATEBYTE_11, ++ DOT11RATEBYTE_12_G, ++ DOT11RATEBYTE_18_G, ++ DOT11RATEBYTE_22, ++ DOT11RATEBYTE_24_G, ++ DOT11RATEBYTE_36_G, ++ DOT11RATEBYTE_48_G, ++ DOT11RATEBYTE_54_G, ++}; ++ ++static inline int ++find_pos(const u8 *p, int size, u8 v) ++{ ++ int i; ++ for (i = 0; i < size; i++) ++ if (p[i] == v) ++ return i; ++ /* printk a message about strange byte? */ ++ return 0; ++} ++ ++static void ++add_bits_to_ratemasks(u8* ratevec, int len, u16* brate, u16* orate) ++{ ++ while (len--) { ++ int n = 1 << find_pos(dot11ratebyte, ++ sizeof(dot11ratebyte), *ratevec & 0x7f); ++ if (*ratevec & 0x80) ++ *brate |= n; ++ *orate |= n; ++ ratevec++; ++ } ++} ++ ++static int ++acx_l_transmit_assocresp(acx_device_t *adev, const wlan_fr_assocreq_t *req) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ struct assocresp_frame_body *body; ++ u8 *p; ++ const u8 *da; ++ /* const u8 *sa; */ ++ const u8 *bssid; ++ client_t *clt; ++ ++ FN_ENTER; ++ ++ /* sa = req->hdr->a1; */ ++ da = req->hdr->a2; ++ bssid = req->hdr->a3; ++ ++ clt = acx_l_sta_list_get(adev, da); ++ if (!clt) ++ goto ok; ++ ++ /* Assoc without auth is a big no-no */ ++ /* Let's be liberal: if already assoc'ed STA sends assoc req again, ++ ** we won't be rude */ ++ if (clt->used != CLIENT_AUTHENTICATED_2 ++ && clt->used != CLIENT_ASSOCIATED_3) { ++ acx_l_transmit_deauthen(adev, da, WLAN_MGMT_REASON_CLASS2_NONAUTH); ++ goto bad; ++ } ++ ++ clt->used = CLIENT_ASSOCIATED_3; ++ ++ if (clt->aid == 0) ++ clt->aid = ++adev->aid; ++ clt->cap_info = ieee2host16(*(req->cap_info)); ++ ++ /* We cheat here a bit. We don't really care which rates are flagged ++ ** as basic by the client, so we stuff them in single ratemask */ ++ clt->rate_cap = 0; ++ if (req->supp_rates) ++ add_bits_to_ratemasks(req->supp_rates->rates, ++ req->supp_rates->len, &clt->rate_cap, &clt->rate_cap); ++ if (req->ext_rates) ++ add_bits_to_ratemasks(req->ext_rates->rates, ++ req->ext_rates->len, &clt->rate_cap, &clt->rate_cap); ++ /* We can check that client supports all basic rates, ++ ** and deny assoc if not. But let's be liberal, right? ;) */ ++ clt->rate_cfg = clt->rate_cap & adev->rate_oper; ++ if (!clt->rate_cfg) clt->rate_cfg = 1 << lowest_bit(adev->rate_oper); ++ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg); ++ if (IS_ACX100(adev)) ++ clt->rate_100 = acx_bitpos2rate100[lowest_bit(clt->rate_cfg)]; ++ clt->fallback_count = clt->stepup_count = 0; ++ clt->ignore_count = 16; ++ ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto bad; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto bad; ++ } ++ body = (void*)(head + 1); ++ ++ head->fc = WF_FSTYPE_ASSOCRESPi; ++ head->dur = req->hdr->dur; ++ MAC_COPY(head->da, da); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, bssid); ++ head->seq = req->hdr->seq; ++ ++ body->cap_info = host2ieee16(adev->capabilities); ++ body->status = host2ieee16(0); ++ body->aid = host2ieee16(clt->aid); ++ p = wlan_fill_ie_rates((u8*)&body->rates, adev->rate_supported_len, ++ adev->rate_supported); ++ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len, ++ adev->rate_supported); ++ ++ acx_l_tx_data(adev, tx, p - (u8*)head); ++ok: ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++* acx_l_transmit_reassocresp ++ ++You may be wondering, just like me, what the hell ReAuth is. ++In practice it was seen sent by STA when STA feels like losing connection. ++ ++[802.11] ++ ++5.4.2.3 Reassociation ++ ++Association is sufficient for no-transition message delivery between ++IEEE 802.11 stations. Additional functionality is needed to support ++BSS-transition mobility. The additional required functionality ++is provided by the reassociation service. Reassociation is a DSS. ++The reassociation service is invoked to 'move' a current association ++from one AP to another. This keeps the DS informed of the current ++mapping between AP and STA as the station moves from BSS to BSS within ++an ESS. Reassociation also enables changing association attributes ++of an established association while the STA remains associated with ++the same AP. Reassociation is always initiated by the mobile STA. ++ ++5.4.3.1 Authentication ++... ++A STA may be authenticated with many other STAs at any given instant. ++ ++5.4.3.1.1 Preauthentication ++ ++Because the authentication process could be time-consuming (depending ++on the authentication protocol in use), the authentication service can ++be invoked independently of the association service. Preauthentication ++is typically done by a STA while it is already associated with an AP ++(with which it previously authenticated). IEEE 802.11 does not require ++that STAs preauthenticate with APs. However, authentication is required ++before an association can be established. If the authentication is left ++until reassociation time, this may impact the speed with which a STA can ++reassociate between APs, limiting BSS-transition mobility performance. ++The use of preauthentication takes the authentication service overhead ++out of the time-critical reassociation process. ++ ++5.7.3 Reassociation ++ ++For a STA to reassociate, the reassociation service causes the following ++message to occur: ++ ++ Reassociation request ++ ++* Message type: Management ++* Message subtype: Reassociation request ++* Information items: ++ - IEEE address of the STA ++ - IEEE address of the AP with which the STA will reassociate ++ - IEEE address of the AP with which the STA is currently associated ++ - ESSID ++* Direction of message: From STA to 'new' AP ++ ++The address of the current AP is included for efficiency. The inclusion ++of the current AP address facilitates MAC reassociation to be independent ++of the DS implementation. ++ ++ Reassociation response ++* Message type: Management ++* Message subtype: Reassociation response ++* Information items: ++ - Result of the requested reassociation. (success/failure) ++ - If the reassociation is successful, the response shall include the AID. ++* Direction of message: From AP to STA ++ ++7.2.3.6 Reassociation Request frame format ++ ++The frame body of a management frame of subtype Reassociation Request ++contains the information shown in Table 9. ++ ++Table 9 Reassociation Request frame body ++Order Information ++1 Capability information ++2 Listen interval ++3 Current AP address ++4 SSID ++5 Supported rates ++ ++7.2.3.7 Reassociation Response frame format ++ ++The frame body of a management frame of subtype Reassociation Response ++contains the information shown in Table 10. ++ ++Table 10 Reassociation Response frame body ++Order Information ++1 Capability information ++2 Status code ++3 Association ID (AID) ++4 Supported rates ++ ++*/ ++static int ++acx_l_transmit_reassocresp(acx_device_t *adev, const wlan_fr_reassocreq_t *req) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ struct reassocresp_frame_body *body; ++ u8 *p; ++ const u8 *da; ++ /* const u8 *sa; */ ++ const u8 *bssid; ++ client_t *clt; ++ ++ FN_ENTER; ++ ++ /* sa = req->hdr->a1; */ ++ da = req->hdr->a2; ++ bssid = req->hdr->a3; ++ ++ /* Must be already authenticated, so it must be in the list */ ++ clt = acx_l_sta_list_get(adev, da); ++ if (!clt) ++ goto ok; ++ ++ /* Assoc without auth is a big no-no */ ++ /* Already assoc'ed STAs sending ReAssoc req are ok per 802.11 */ ++ if (clt->used != CLIENT_AUTHENTICATED_2 ++ && clt->used != CLIENT_ASSOCIATED_3) { ++ acx_l_transmit_deauthen(adev, da, WLAN_MGMT_REASON_CLASS2_NONAUTH); ++ goto bad; ++ } ++ ++ clt->used = CLIENT_ASSOCIATED_3; ++ if (clt->aid == 0) { ++ clt->aid = ++adev->aid; ++ } ++ if (req->cap_info) ++ clt->cap_info = ieee2host16(*(req->cap_info)); ++ ++ /* We cheat here a bit. We don't really care which rates are flagged ++ ** as basic by the client, so we stuff them in single ratemask */ ++ clt->rate_cap = 0; ++ if (req->supp_rates) ++ add_bits_to_ratemasks(req->supp_rates->rates, ++ req->supp_rates->len, &clt->rate_cap, &clt->rate_cap); ++ if (req->ext_rates) ++ add_bits_to_ratemasks(req->ext_rates->rates, ++ req->ext_rates->len, &clt->rate_cap, &clt->rate_cap); ++ /* We can check that client supports all basic rates, ++ ** and deny assoc if not. But let's be liberal, right? ;) */ ++ clt->rate_cfg = clt->rate_cap & adev->rate_oper; ++ if (!clt->rate_cfg) clt->rate_cfg = 1 << lowest_bit(adev->rate_oper); ++ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg); ++ if (IS_ACX100(adev)) ++ clt->rate_100 = acx_bitpos2rate100[lowest_bit(clt->rate_cfg)]; ++ ++ clt->fallback_count = clt->stepup_count = 0; ++ clt->ignore_count = 16; ++ ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto ok; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto ok; ++ } ++ body = (void*)(head + 1); ++ ++ head->fc = WF_FSTYPE_REASSOCRESPi; ++ head->dur = req->hdr->dur; ++ MAC_COPY(head->da, da); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, bssid); ++ head->seq = req->hdr->seq; ++ ++ /* IEs: 1. caps */ ++ body->cap_info = host2ieee16(adev->capabilities); ++ /* 2. status code */ ++ body->status = host2ieee16(0); ++ /* 3. AID */ ++ body->aid = host2ieee16(clt->aid); ++ /* 4. supp rates */ ++ p = wlan_fill_ie_rates((u8*)&body->rates, adev->rate_supported_len, ++ adev->rate_supported); ++ /* 5. ext supp rates */ ++ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len, ++ adev->rate_supported); ++ ++ acx_l_tx_data(adev, tx, p - (u8*)head); ++ok: ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_disassoc_from_sta ++*/ ++static void ++acx_l_process_disassoc_from_sta(acx_device_t *adev, const wlan_fr_disassoc_t *req) ++{ ++ const u8 *ta; ++ client_t *clt; ++ ++ FN_ENTER; ++ ++ ta = req->hdr->a2; ++ clt = acx_l_sta_list_get(adev, ta); ++ if (!clt) ++ goto end; ++ ++ if (clt->used != CLIENT_ASSOCIATED_3 ++ && clt->used != CLIENT_AUTHENTICATED_2) { ++ /* it's disassociating, but it's ++ ** not even authenticated! Let it know that */ ++ acxlog_mac(L_ASSOC|L_XFER, "peer ", ta, "has sent disassoc " ++ "req but it is not even auth'ed! sending deauth\n"); ++ acx_l_transmit_deauthen(adev, ta, ++ WLAN_MGMT_REASON_CLASS2_NONAUTH); ++ clt->used = CLIENT_EXIST_1; ++ } else { ++ /* mark it as auth'ed only */ ++ clt->used = CLIENT_AUTHENTICATED_2; ++ } ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_deauthen_from_sta ++*/ ++static void ++acx_l_process_deauth_from_sta(acx_device_t *adev, const wlan_fr_deauthen_t *req) ++{ ++ const wlan_hdr_t *hdr; ++ client_t *client; ++ ++ FN_ENTER; ++ ++ hdr = req->hdr; ++ ++ if (acx_debug & L_ASSOC) { ++ acx_print_mac("got deauth from sta:", hdr->a2, " "); ++ acx_print_mac("a1:", hdr->a1, " "); ++ acx_print_mac("a3:", hdr->a3, " "); ++ acx_print_mac("adev->addr:", adev->dev_addr, " "); ++ acx_print_mac("adev->bssid:", adev->bssid, "\n"); ++ } ++ ++ if (!mac_is_equal(adev->dev_addr, hdr->a1)) { ++ goto end; ++ } ++ ++ client = acx_l_sta_list_get(adev, hdr->a2); ++ if (!client) { ++ goto end; ++ } ++ client->used = CLIENT_EXIST_1; ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_disassoc_from_ap ++*/ ++static void ++acx_l_process_disassoc_from_ap(acx_device_t *adev, const wlan_fr_disassoc_t *req) ++{ ++ FN_ENTER; ++ ++ if (!adev->ap_client) { ++ /* Hrm, we aren't assoc'ed yet anyhow... */ ++ goto end; ++ } ++ ++ printk("%s: got disassoc frame with reason %d (%s)\n", ++ adev->ndev->name, *req->reason, ++ acx_wlan_reason_str(*req->reason)); ++ ++ if (mac_is_equal(adev->dev_addr, req->hdr->a1)) { ++ acx_l_transmit_deauthen(adev, adev->bssid, ++ WLAN_MGMT_REASON_DEAUTH_LEAVING); ++ SET_BIT(adev->set_mask, GETSET_RESCAN); ++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG); ++ } ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_deauth_from_ap ++*/ ++static void ++acx_l_process_deauth_from_ap(acx_device_t *adev, const wlan_fr_deauthen_t *req) ++{ ++ FN_ENTER; ++ ++ if (!adev->ap_client) { ++ /* Hrm, we aren't assoc'ed yet anyhow... */ ++ goto end; ++ } ++ ++ printk("%s: got deauth frame with reason %d (%s)\n", ++ adev->ndev->name, *req->reason, ++ acx_wlan_reason_str(*req->reason)); ++ ++ /* Chk: is ta verified to be from our AP? */ ++ if (mac_is_equal(adev->dev_addr, req->hdr->a1)) { ++ log(L_DEBUG, "AP sent us deauth packet\n"); ++ SET_BIT(adev->set_mask, GETSET_RESCAN); ++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG); ++ } ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_rx ++** ++** The end of the Rx path. Pulls data from a rxhostdesc into a socket ++** buffer and feeds it to the network stack via netif_rx(). ++*/ ++static void ++acx_l_rx(acx_device_t *adev, rxbuffer_t *rxbuf) ++{ ++ FN_ENTER; ++ if (likely(adev->dev_state_mask & ACX_STATE_IFACE_UP)) { ++ struct sk_buff *skb; ++ skb = acx_rxbuf_to_ether(adev, rxbuf); ++ if (likely(skb)) { ++ netif_rx(skb); ++ adev->ndev->last_rx = jiffies; ++ adev->stats.rx_packets++; ++ adev->stats.rx_bytes += skb->len; ++ } ++ } ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_data_frame_master ++*/ ++static int ++acx_l_process_data_frame_master(acx_device_t *adev, rxbuffer_t *rxbuf) ++{ ++ struct wlan_hdr *hdr; ++ struct tx *tx; ++ void *txbuf; ++ int len; ++ int result = NOT_OK; ++ ++ FN_ENTER; ++ ++ hdr = acx_get_wlan_hdr(adev, rxbuf); ++ ++ switch (WF_FC_FROMTODSi & hdr->fc) { ++ case 0: ++ case WF_FC_FROMDSi: ++ log(L_DEBUG, "ap->sta or adhoc->adhoc data frame ignored\n"); ++ goto done; ++ case WF_FC_TODSi: ++ break; ++ default: /* WF_FC_FROMTODSi */ ++ log(L_DEBUG, "wds data frame ignored (TODO)\n"); ++ goto done; ++ } ++ ++ /* check if it is our BSSID, if not, leave */ ++ if (!mac_is_equal(adev->bssid, hdr->a1)) { ++ goto done; ++ } ++ ++ if (mac_is_equal(adev->dev_addr, hdr->a3)) { ++ /* this one is for us */ ++ acx_l_rx(adev, rxbuf); ++ } else { ++ if (mac_is_bcast(hdr->a3)) { ++ /* this one is bcast, rx it too */ ++ acx_l_rx(adev, rxbuf); ++ } ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) { ++ goto fail; ++ } ++ /* repackage, tx, and hope it someday reaches its destination */ ++ /* order is important, we do it in-place */ ++ MAC_COPY(hdr->a1, hdr->a3); ++ MAC_COPY(hdr->a3, hdr->a2); ++ MAC_COPY(hdr->a2, adev->bssid); ++ /* To_DS = 0, From_DS = 1 */ ++ hdr->fc = WF_FC_FROMDSi + WF_FTYPE_DATAi; ++ ++ txbuf = acx_l_get_txbuf(adev, tx); ++ if (txbuf) { ++ len = RXBUF_BYTES_RCVD(adev, rxbuf); ++ memcpy(txbuf, hdr, len); ++ acx_l_tx_data(adev, tx, len); ++ } else { ++ acx_l_dealloc_tx(adev, tx); ++ } ++ } ++done: ++ result = OK; ++fail: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_data_frame_client ++*/ ++static int ++acx_l_process_data_frame_client(acx_device_t *adev, rxbuffer_t *rxbuf) ++{ ++ const u8 *da, *bssid; ++ const wlan_hdr_t *hdr; ++ struct net_device *ndev = adev->ndev; ++ int result = NOT_OK; ++ ++ FN_ENTER; ++ ++ if (ACX_STATUS_4_ASSOCIATED != adev->status) ++ goto drop; ++ ++ hdr = acx_get_wlan_hdr(adev, rxbuf); ++ ++ switch (WF_FC_FROMTODSi & hdr->fc) { ++ case 0: ++ if (adev->mode != ACX_MODE_0_ADHOC) { ++ log(L_DEBUG, "adhoc->adhoc data frame ignored\n"); ++ goto drop; ++ } ++ bssid = hdr->a3; ++ break; ++ case WF_FC_FROMDSi: ++ if (adev->mode != ACX_MODE_2_STA) { ++ log(L_DEBUG, "ap->sta data frame ignored\n"); ++ goto drop; ++ } ++ bssid = hdr->a2; ++ break; ++ case WF_FC_TODSi: ++ log(L_DEBUG, "sta->ap data frame ignored\n"); ++ goto drop; ++ default: /* WF_FC_FROMTODSi: wds->wds */ ++ log(L_DEBUG, "wds data frame ignored (todo)\n"); ++ goto drop; ++ } ++ ++ da = hdr->a1; ++ ++ if (unlikely(acx_debug & L_DEBUG)) { ++ acx_print_mac("rx: da=", da, ""); ++ acx_print_mac(" bssid=", bssid, ""); ++ acx_print_mac(" adev->bssid=", adev->bssid, ""); ++ acx_print_mac(" adev->addr=", adev->dev_addr, "\n"); ++ } ++ ++ /* promiscuous mode --> receive all packets */ ++ if (unlikely(ndev->flags & IFF_PROMISC)) ++ goto process; ++ ++ /* FIRST, check if it is our BSSID */ ++ if (!mac_is_equal(adev->bssid, bssid)) { ++ /* is not our BSSID, so bail out */ ++ goto drop; ++ } ++ ++ /* then, check if it is our address */ ++ if (mac_is_equal(adev->dev_addr, da)) { ++ goto process; ++ } ++ ++ /* then, check if it is broadcast */ ++ if (mac_is_bcast(da)) { ++ goto process; ++ } ++ ++ if (mac_is_mcast(da)) { ++ /* unconditionally receive all multicasts */ ++ if (ndev->flags & IFF_ALLMULTI) ++ goto process; ++ ++ /* FIXME: need to check against the list of ++ * multicast addresses that are configured ++ * for the interface (ifconfig) */ ++ log(L_XFER, "FIXME: multicast packet, need to check " ++ "against a list of multicast addresses " ++ "(to be created!); accepting packet for now\n"); ++ /* for now, just accept it here */ ++ goto process; ++ } ++ ++ log(L_DEBUG, "rx: foreign packet, dropping\n"); ++ goto drop; ++process: ++ /* receive packet */ ++ acx_l_rx(adev, rxbuf); ++ ++ result = OK; ++drop: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_mgmt_frame ++** ++** Theory of operation: mgmt packet gets parsed (to make it easy ++** to access variable-sized IEs), results stored in 'parsed'. ++** Then we react to the packet. ++*/ ++typedef union parsed_mgmt_req { ++ wlan_fr_mgmt_t mgmt; ++ wlan_fr_assocreq_t assocreq; ++ wlan_fr_reassocreq_t reassocreq; ++ wlan_fr_assocresp_t assocresp; ++ wlan_fr_reassocresp_t reassocresp; ++ wlan_fr_beacon_t beacon; ++ wlan_fr_disassoc_t disassoc; ++ wlan_fr_authen_t authen; ++ wlan_fr_deauthen_t deauthen; ++ wlan_fr_proberesp_t proberesp; ++} parsed_mgmt_req_t; ++ ++void BUG_excessive_stack_usage(void); ++ ++static int ++acx_l_process_mgmt_frame(acx_device_t *adev, rxbuffer_t *rxbuf) ++{ ++ parsed_mgmt_req_t parsed; /* takes ~100 bytes of stack */ ++ wlan_hdr_t *hdr; ++ int adhoc, sta_scan, sta, ap; ++ int len; ++ ++ if (sizeof(parsed) > 256) ++ BUG_excessive_stack_usage(); ++ ++ FN_ENTER; ++ ++ hdr = acx_get_wlan_hdr(adev, rxbuf); ++ ++ /* Management frames never have these set */ ++ if (WF_FC_FROMTODSi & hdr->fc) { ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++ } ++ ++ len = RXBUF_BYTES_RCVD(adev, rxbuf); ++ if (WF_FC_ISWEPi & hdr->fc) ++ len -= 0x10; ++ ++ adhoc = (adev->mode == ACX_MODE_0_ADHOC); ++ sta_scan = ((adev->mode == ACX_MODE_2_STA) ++ && (adev->status != ACX_STATUS_4_ASSOCIATED)); ++ sta = ((adev->mode == ACX_MODE_2_STA) ++ && (adev->status == ACX_STATUS_4_ASSOCIATED)); ++ ap = (adev->mode == ACX_MODE_3_AP); ++ ++ switch (WF_FC_FSTYPEi & hdr->fc) { ++ /* beacons first, for speed */ ++ case WF_FSTYPE_BEACONi: ++ memset(&parsed.beacon, 0, sizeof(parsed.beacon)); ++ parsed.beacon.hdr = hdr; ++ parsed.beacon.len = len; ++ if (acx_debug & L_DATA) { ++ printk("beacon len:%d fc:%04X dur:%04X seq:%04X", ++ len, hdr->fc, hdr->dur, hdr->seq); ++ acx_print_mac(" a1:", hdr->a1, ""); ++ acx_print_mac(" a2:", hdr->a2, ""); ++ acx_print_mac(" a3:", hdr->a3, "\n"); ++ } ++ wlan_mgmt_decode_beacon(&parsed.beacon); ++ /* beacon and probe response are very similar, so... */ ++ acx_l_process_probe_response(adev, &parsed.beacon, rxbuf); ++ break; ++ case WF_FSTYPE_ASSOCREQi: ++ if (!ap) ++ break; ++ memset(&parsed.assocreq, 0, sizeof(parsed.assocreq)); ++ parsed.assocreq.hdr = hdr; ++ parsed.assocreq.len = len; ++ wlan_mgmt_decode_assocreq(&parsed.assocreq); ++ if (mac_is_equal(hdr->a1, adev->bssid) ++ && mac_is_equal(hdr->a3, adev->bssid)) { ++ acx_l_transmit_assocresp(adev, &parsed.assocreq); ++ } ++ break; ++ case WF_FSTYPE_REASSOCREQi: ++ if (!ap) ++ break; ++ memset(&parsed.assocreq, 0, sizeof(parsed.assocreq)); ++ parsed.assocreq.hdr = hdr; ++ parsed.assocreq.len = len; ++ wlan_mgmt_decode_assocreq(&parsed.assocreq); ++ /* reassocreq and assocreq are equivalent */ ++ acx_l_transmit_reassocresp(adev, &parsed.reassocreq); ++ break; ++ case WF_FSTYPE_ASSOCRESPi: ++ if (!sta_scan) ++ break; ++ memset(&parsed.assocresp, 0, sizeof(parsed.assocresp)); ++ parsed.assocresp.hdr = hdr; ++ parsed.assocresp.len = len; ++ wlan_mgmt_decode_assocresp(&parsed.assocresp); ++ acx_l_process_assocresp(adev, &parsed.assocresp); ++ break; ++ case WF_FSTYPE_REASSOCRESPi: ++ if (!sta_scan) ++ break; ++ memset(&parsed.assocresp, 0, sizeof(parsed.assocresp)); ++ parsed.assocresp.hdr = hdr; ++ parsed.assocresp.len = len; ++ wlan_mgmt_decode_assocresp(&parsed.assocresp); ++ acx_l_process_reassocresp(adev, &parsed.reassocresp); ++ break; ++ case WF_FSTYPE_PROBEREQi: ++ if (ap || adhoc) { ++ /* FIXME: since we're supposed to be an AP, ++ ** we need to return a Probe Response packet. ++ ** Currently firmware is doing it for us, ++ ** but firmware is buggy! See comment elsewhere --vda */ ++ } ++ break; ++ case WF_FSTYPE_PROBERESPi: ++ memset(&parsed.proberesp, 0, sizeof(parsed.proberesp)); ++ parsed.proberesp.hdr = hdr; ++ parsed.proberesp.len = len; ++ wlan_mgmt_decode_proberesp(&parsed.proberesp); ++ acx_l_process_probe_response(adev, &parsed.proberesp, rxbuf); ++ break; ++ case 6: ++ case 7: ++ /* exit */ ++ break; ++ case WF_FSTYPE_ATIMi: ++ /* exit */ ++ break; ++ case WF_FSTYPE_DISASSOCi: ++ if (!sta && !ap) ++ break; ++ memset(&parsed.disassoc, 0, sizeof(parsed.disassoc)); ++ parsed.disassoc.hdr = hdr; ++ parsed.disassoc.len = len; ++ wlan_mgmt_decode_disassoc(&parsed.disassoc); ++ if (sta) ++ acx_l_process_disassoc_from_ap(adev, &parsed.disassoc); ++ else ++ acx_l_process_disassoc_from_sta(adev, &parsed.disassoc); ++ break; ++ case WF_FSTYPE_AUTHENi: ++ if (!sta_scan && !ap) ++ break; ++ memset(&parsed.authen, 0, sizeof(parsed.authen)); ++ parsed.authen.hdr = hdr; ++ parsed.authen.len = len; ++ wlan_mgmt_decode_authen(&parsed.authen); ++ acx_l_process_authen(adev, &parsed.authen); ++ break; ++ case WF_FSTYPE_DEAUTHENi: ++ if (!sta && !ap) ++ break; ++ memset(&parsed.deauthen, 0, sizeof(parsed.deauthen)); ++ parsed.deauthen.hdr = hdr; ++ parsed.deauthen.len = len; ++ wlan_mgmt_decode_deauthen(&parsed.deauthen); ++ if (sta) ++ acx_l_process_deauth_from_ap(adev, &parsed.deauthen); ++ else ++ acx_l_process_deauth_from_sta(adev, &parsed.deauthen); ++ break; ++ } ++ ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++#ifdef UNUSED ++/*********************************************************************** ++** acx_process_class_frame ++** ++** Called from IRQ context only ++*/ ++static int ++acx_process_class_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala) ++{ ++ return OK; ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_l_process_NULL_frame ++*/ ++#ifdef BOGUS_ITS_NOT_A_NULL_FRAME_HANDLER_AT_ALL ++static int ++acx_l_process_NULL_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala) ++{ ++ const signed char *esi; ++ const u8 *ebx; ++ const wlan_hdr_t *hdr; ++ const client_t *client; ++ int result = NOT_OK; ++ ++ hdr = acx_get_wlan_hdr(adev, rxbuf); ++ ++ switch (WF_FC_FROMTODSi & hdr->fc) { ++ case 0: ++ esi = hdr->a1; ++ ebx = hdr->a2; ++ break; ++ case WF_FC_FROMDSi: ++ esi = hdr->a1; ++ ebx = hdr->a3; ++ break; ++ case WF_FC_TODSi: ++ esi = hdr->a1; ++ ebx = hdr->a2; ++ break; ++ default: /* WF_FC_FROMTODSi */ ++ esi = hdr->a1; /* added by me! --vda */ ++ ebx = hdr->a2; ++ } ++ ++ if (esi[0x0] < 0) { ++ result = OK; ++ goto done; ++ } ++ ++ client = acx_l_sta_list_get(adev, ebx); ++ if (client) ++ result = NOT_OK; ++ else { ++#ifdef IS_IT_BROKEN ++ log(L_DEBUG|L_XFER, "<transmit_deauth 7>\n"); ++ acx_l_transmit_deauthen(adev, ebx, ++ WLAN_MGMT_REASON_CLASS2_NONAUTH); ++#else ++ log(L_DEBUG, "received NULL frame from unknown client! " ++ "We really shouldn't send deauthen here, right?\n"); ++#endif ++ result = OK; ++ } ++done: ++ return result; ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_l_process_probe_response ++*/ ++static int ++acx_l_process_probe_response(acx_device_t *adev, wlan_fr_proberesp_t *req, ++ const rxbuffer_t *rxbuf) ++{ ++ struct client *bss; ++ wlan_hdr_t *hdr; ++ ++ FN_ENTER; ++ ++ hdr = req->hdr; ++ ++ if (mac_is_equal(hdr->a3, adev->dev_addr)) { ++ log(L_ASSOC, "huh, scan found our own MAC!?\n"); ++ goto ok; /* just skip this one silently */ ++ } ++ ++ bss = acx_l_sta_list_get_or_add(adev, hdr->a2); ++ ++ /* NB: be careful modifying bss data! It may be one ++ ** of the already known clients (like our AP if we are a STA) ++ ** Thus do not blindly modify e.g. current ratemask! */ ++ ++ if (STA_LIST_ADD_CAN_FAIL && !bss) { ++ /* uh oh, we found more sites/stations than we can handle with ++ * our current setup: pull the emergency brake and stop scanning! */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_STOP_SCAN); ++ /* TODO: a nice comment what below call achieves --vda */ ++ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH); ++ goto ok; ++ } ++ /* NB: get_or_add already filled bss->address = hdr->a2 */ ++ MAC_COPY(bss->bssid, hdr->a3); ++ ++ /* copy the ESSID element */ ++ if (req->ssid && req->ssid->len <= IW_ESSID_MAX_SIZE) { ++ bss->essid_len = req->ssid->len; ++ memcpy(bss->essid, req->ssid->ssid, req->ssid->len); ++ bss->essid[req->ssid->len] = '\0'; ++ } else { ++ /* Either no ESSID IE or oversized one */ ++ printk("%s: received packet has bogus ESSID\n", ++ adev->ndev->name); ++ } ++ ++ if (req->ds_parms) ++ bss->channel = req->ds_parms->curr_ch; ++ if (req->cap_info) ++ bss->cap_info = ieee2host16(*req->cap_info); ++ ++ bss->sir = acx_signal_to_winlevel(rxbuf->phy_level); ++ bss->snr = acx_signal_to_winlevel(rxbuf->phy_snr); ++ ++ bss->rate_cap = 0; /* operational mask */ ++ bss->rate_bas = 0; /* basic mask */ ++ if (req->supp_rates) ++ add_bits_to_ratemasks(req->supp_rates->rates, ++ req->supp_rates->len, &bss->rate_bas, &bss->rate_cap); ++ if (req->ext_rates) ++ add_bits_to_ratemasks(req->ext_rates->rates, ++ req->ext_rates->len, &bss->rate_bas, &bss->rate_cap); ++ /* Fix up any possible bogosity - code elsewhere ++ * is not expecting empty masks */ ++ if (!bss->rate_cap) ++ bss->rate_cap = adev->rate_basic; ++ if (!bss->rate_bas) ++ bss->rate_bas = 1 << lowest_bit(bss->rate_cap); ++ if (!bss->rate_cur) ++ bss->rate_cur = 1 << lowest_bit(bss->rate_bas); ++ ++ /* People moan about this being too noisy at L_ASSOC */ ++ log(L_DEBUG, ++ "found %s: ESSID=\"%s\" ch=%d " ++ "BSSID="MACSTR" caps=0x%04X SIR=%d SNR=%d\n", ++ (bss->cap_info & WF_MGMT_CAP_IBSS) ? "Ad-Hoc peer" : "AP", ++ bss->essid, bss->channel, MAC(bss->bssid), bss->cap_info, ++ bss->sir, bss->snr); ++ok: ++ FN_EXIT0; ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_assocresp ++*/ ++static int ++acx_l_process_assocresp(acx_device_t *adev, const wlan_fr_assocresp_t *req) ++{ ++ const wlan_hdr_t *hdr; ++ int res = OK; ++ ++ FN_ENTER; ++ ++ hdr = req->hdr; ++ ++ if ((ACX_MODE_2_STA == adev->mode) ++ && mac_is_equal(adev->dev_addr, hdr->a1)) { ++ u16 st = ieee2host16(*(req->status)); ++ if (WLAN_MGMT_STATUS_SUCCESS == st) { ++ adev->aid = ieee2host16(*(req->aid)); ++ /* tell the card we are associated when ++ ** we are out of interrupt context */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_ASSOCIATE); ++ } else { ++ ++ /* TODO: we shall delete peer from sta_list, and try ++ ** other candidates... */ ++ ++ printk("%s: association FAILED: peer sent " ++ "Status Code %d (%s)\n", ++ adev->ndev->name, st, get_status_string(st)); ++ res = NOT_OK; ++ } ++ } ++ ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_reassocresp ++*/ ++static int ++acx_l_process_reassocresp(acx_device_t *adev, const wlan_fr_reassocresp_t *req) ++{ ++ const wlan_hdr_t *hdr; ++ int result = NOT_OK; ++ u16 st; ++ ++ FN_ENTER; ++ ++ hdr = req->hdr; ++ ++ if (!mac_is_equal(adev->dev_addr, hdr->a1)) { ++ goto end; ++ } ++ st = ieee2host16(*(req->status)); ++ if (st == WLAN_MGMT_STATUS_SUCCESS) { ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); ++ result = OK; ++ } else { ++ printk("%s: reassociation FAILED: peer sent " ++ "response code %d (%s)\n", ++ adev->ndev->name, st, get_status_string(st)); ++ } ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_l_process_authen ++** ++** Called only in STA_SCAN or AP mode ++*/ ++static int ++acx_l_process_authen(acx_device_t *adev, const wlan_fr_authen_t *req) ++{ ++ const wlan_hdr_t *hdr; ++ client_t *clt; ++ wlan_ie_challenge_t *chal; ++ u16 alg, seq, status; ++ int ap, result; ++ ++ FN_ENTER; ++ ++ hdr = req->hdr; ++ ++ if (acx_debug & L_ASSOC) { ++ acx_print_mac("AUTHEN adev->addr=", adev->dev_addr, " "); ++ acx_print_mac("a1=", hdr->a1, " "); ++ acx_print_mac("a2=", hdr->a2, " "); ++ acx_print_mac("a3=", hdr->a3, " "); ++ acx_print_mac("adev->bssid=", adev->bssid, "\n"); ++ } ++ ++ if (!mac_is_equal(adev->dev_addr, hdr->a1) ++ || !mac_is_equal(adev->bssid, hdr->a3)) { ++ result = OK; ++ goto end; ++ } ++ ++ alg = ieee2host16(*(req->auth_alg)); ++ seq = ieee2host16(*(req->auth_seq)); ++ status = ieee2host16(*(req->status)); ++ ++ log(L_ASSOC, "auth algorithm %d, auth sequence %d, status %d\n", alg, seq, status); ++ ++ ap = (adev->mode == ACX_MODE_3_AP); ++ ++ if (adev->auth_alg <= 1) { ++ if (adev->auth_alg != alg) { ++ log(L_ASSOC, "auth algorithm mismatch: " ++ "our:%d peer:%d\n", adev->auth_alg, alg); ++ result = NOT_OK; ++ goto end; ++ } ++ } ++ if (ap) { ++ clt = acx_l_sta_list_get_or_add(adev, hdr->a2); ++ if (STA_LIST_ADD_CAN_FAIL && !clt) { ++ log(L_ASSOC, "could not allocate room for client\n"); ++ result = NOT_OK; ++ goto end; ++ } ++ } else { ++ clt = adev->ap_client; ++ if (!mac_is_equal(clt->address, hdr->a2)) { ++ printk("%s: malformed auth frame from AP?!\n", ++ adev->ndev->name); ++ result = NOT_OK; ++ goto end; ++ } ++ } ++ ++ /* now check which step in the authentication sequence we are ++ * currently in, and act accordingly */ ++ switch (seq) { ++ case 1: ++ if (!ap) ++ break; ++ acx_l_transmit_authen2(adev, req, clt); ++ break; ++ case 2: ++ if (ap) ++ break; ++ if (status == WLAN_MGMT_STATUS_SUCCESS) { ++ if (alg == WLAN_AUTH_ALG_OPENSYSTEM) { ++ acx_set_status(adev, ACX_STATUS_3_AUTHENTICATED); ++ acx_l_transmit_assoc_req(adev); ++ } else ++ if (alg == WLAN_AUTH_ALG_SHAREDKEY) { ++ acx_l_transmit_authen3(adev, req); ++ } ++ } else { ++ printk("%s: auth FAILED: peer sent " ++ "response code %d (%s), " ++ "still waiting for authentication\n", ++ adev->ndev->name, ++ status, get_status_string(status)); ++ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH); ++ } ++ break; ++ case 3: ++ if (!ap) ++ break; ++ if ((clt->auth_alg != WLAN_AUTH_ALG_SHAREDKEY) ++ || (alg != WLAN_AUTH_ALG_SHAREDKEY) ++ || (clt->auth_step != 2)) ++ break; ++ chal = req->challenge; ++ if (!chal ++ || memcmp(chal->challenge, clt->challenge_text, WLAN_CHALLENGE_LEN) ++ || (chal->eid != WLAN_EID_CHALLENGE) ++ || (chal->len != WLAN_CHALLENGE_LEN) ++ ) ++ break; ++ acx_l_transmit_authen4(adev, req); ++ MAC_COPY(clt->address, hdr->a2); ++ clt->used = CLIENT_AUTHENTICATED_2; ++ clt->auth_step = 4; ++ clt->seq = ieee2host16(hdr->seq); ++ break; ++ case 4: ++ if (ap) ++ break; ++ /* ok, we're through: we're authenticated. Woohoo!! */ ++ acx_set_status(adev, ACX_STATUS_3_AUTHENTICATED); ++ log(L_ASSOC, "Authenticated!\n"); ++ /* now that we're authenticated, request association */ ++ acx_l_transmit_assoc_req(adev); ++ break; ++ } ++ result = OK; ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_gen_challenge ++*/ ++static inline void ++acx_gen_challenge(wlan_ie_challenge_t* d) ++{ ++ FN_ENTER; ++ d->eid = WLAN_EID_CHALLENGE; ++ d->len = WLAN_CHALLENGE_LEN; ++ get_random_bytes(d->challenge, WLAN_CHALLENGE_LEN); ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_l_transmit_deauthen ++*/ ++static int ++acx_l_transmit_deauthen(acx_device_t *adev, const u8 *addr, u16 reason) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ struct deauthen_frame_body *body; ++ ++ FN_ENTER; ++ ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto bad; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto bad; ++ } ++ body = (void*)(head + 1); ++ ++ head->fc = (WF_FTYPE_MGMTi | WF_FSTYPE_DEAUTHENi); ++ head->dur = 0; ++ MAC_COPY(head->da, addr); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, adev->bssid); ++ head->seq = 0; ++ ++ log(L_DEBUG|L_ASSOC|L_XFER, ++ "sending deauthen to "MACSTR" for %d\n", ++ MAC(addr), reason); ++ ++ body->reason = host2ieee16(reason); ++ ++ /* body is fixed size here, but beware of cutting-and-pasting this - ++ ** do not use sizeof(*body) for variable sized mgmt packets! */ ++ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + sizeof(*body)); ++ ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_transmit_authen1 ++*/ ++static int ++acx_l_transmit_authen1(acx_device_t *adev) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ struct auth_frame_body *body; ++ ++ FN_ENTER; ++ ++ log(L_ASSOC, "sending authentication1 request (auth algo %d), " ++ "awaiting response\n", adev->auth_alg); ++ ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto bad; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto bad; ++ } ++ body = (void*)(head + 1); ++ ++ head->fc = WF_FSTYPE_AUTHENi; ++ /* duration should be 0 instead of 0x8000 to have ++ * the firmware calculate the value, right? */ ++ head->dur = 0; ++ MAC_COPY(head->da, adev->bssid); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, adev->bssid); ++ head->seq = 0; ++ ++ body->auth_alg = host2ieee16(adev->auth_alg); ++ body->auth_seq = host2ieee16(1); ++ body->status = host2ieee16(0); ++ ++ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + 2 + 2 + 2); ++ ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_transmit_authen2 ++*/ ++static int ++acx_l_transmit_authen2(acx_device_t *adev, const wlan_fr_authen_t *req, ++ client_t *clt) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ struct auth_frame_body *body; ++ unsigned int packet_len; ++ ++ FN_ENTER; ++ ++ if (!clt) ++ goto ok; ++ ++ MAC_COPY(clt->address, req->hdr->a2); ++#ifdef UNUSED ++ clt->ps = ((WF_FC_PWRMGTi & req->hdr->fc) != 0); ++#endif ++ clt->auth_alg = ieee2host16(*(req->auth_alg)); ++ clt->auth_step = 2; ++ clt->seq = ieee2host16(req->hdr->seq); ++ ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto bad; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto bad; ++ } ++ body = (void*)(head + 1); ++ ++ head->fc = WF_FSTYPE_AUTHENi; ++ head->dur = 0 /* req->hdr->dur */; ++ MAC_COPY(head->da, req->hdr->a2); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, req->hdr->a3); ++ head->seq = 0 /* req->hdr->seq */; ++ ++ /* already in IEEE format, no endianness conversion */ ++ body->auth_alg = *(req->auth_alg); ++ body->auth_seq = host2ieee16(2); ++ body->status = host2ieee16(0); ++ ++ packet_len = WLAN_HDR_A3_LEN + 2 + 2 + 2; ++ if (ieee2host16(*(req->auth_alg)) == WLAN_AUTH_ALG_OPENSYSTEM) { ++ clt->used = CLIENT_AUTHENTICATED_2; ++ } else { /* shared key */ ++ acx_gen_challenge(&body->challenge); ++ memcpy(&clt->challenge_text, body->challenge.challenge, WLAN_CHALLENGE_LEN); ++ packet_len += 2 + 2 + 2 + 1+1+WLAN_CHALLENGE_LEN; ++ } ++ ++ acxlog_mac(L_ASSOC|L_XFER, ++ "transmit_auth2: BSSID=", head->bssid, "\n"); ++ ++ acx_l_tx_data(adev, tx, packet_len); ++ok: ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_transmit_authen3 ++*/ ++static int ++acx_l_transmit_authen3(acx_device_t *adev, const wlan_fr_authen_t *req) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ struct auth_frame_body *body; ++ unsigned int packet_len; ++ ++ FN_ENTER; ++ ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto ok; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto ok; ++ } ++ body = (void*)(head + 1); ++ ++ /* add WF_FC_ISWEPi: auth step 3 needs to be encrypted */ ++ head->fc = WF_FC_ISWEPi + WF_FSTYPE_AUTHENi; ++ /* FIXME: is this needed?? authen4 does it... ++ * I think it's even wrong since we shouldn't re-use old ++ * values but instead let the firmware calculate proper ones ++ head->dur = req->hdr->dur; ++ head->seq = req->hdr->seq; ++ */ ++ MAC_COPY(head->da, adev->bssid); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, adev->bssid); ++ ++ /* already in IEEE format, no endianness conversion */ ++ body->auth_alg = *(req->auth_alg); ++ body->auth_seq = host2ieee16(3); ++ body->status = host2ieee16(0); ++ memcpy(&body->challenge, req->challenge, req->challenge->len + 2); ++ packet_len = WLAN_HDR_A3_LEN + 8 + req->challenge->len; ++ ++ log(L_ASSOC|L_XFER, "transmit_authen3!\n"); ++ ++ acx_l_tx_data(adev, tx, packet_len); ++ok: ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_transmit_authen4 ++*/ ++static int ++acx_l_transmit_authen4(acx_device_t *adev, const wlan_fr_authen_t *req) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ struct auth_frame_body *body; ++ ++ FN_ENTER; ++ ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto ok; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto ok; ++ } ++ body = (void*)(head + 1); ++ ++ head->fc = WF_FSTYPE_AUTHENi; /* 0xb0 */ ++ head->dur = 0 /* req->hdr->dur */; ++ MAC_COPY(head->da, req->hdr->a2); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, req->hdr->a3); ++ head->seq = 0 /* req->hdr->seq */; ++ ++ /* already in IEEE format, no endianness conversion */ ++ body->auth_alg = *(req->auth_alg); ++ body->auth_seq = host2ieee16(4); ++ body->status = host2ieee16(0); ++ ++ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + 2 + 2 + 2); ++ok: ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_transmit_assoc_req ++** ++** adev->ap_client is a current candidate AP here ++*/ ++static int ++acx_l_transmit_assoc_req(acx_device_t *adev) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ u8 *body, *p, *prate; ++ unsigned int packet_len; ++ u16 cap; ++ ++ FN_ENTER; ++ ++ log(L_ASSOC, "sending association request, " ++ "awaiting response. NOT ASSOCIATED YET\n"); ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto bad; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto bad; ++ } ++ body = (void*)(head + 1); ++ ++ head->fc = WF_FSTYPE_ASSOCREQi; ++ head->dur = host2ieee16(0x8000); ++ MAC_COPY(head->da, adev->bssid); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, adev->bssid); ++ head->seq = 0; ++ ++ p = body; ++ /* now start filling the AssocReq frame body */ ++ ++ /* since this assoc request will most likely only get ++ * sent in the STA to AP case (and not when Ad-Hoc IBSS), ++ * the cap combination indicated here will thus be ++ * WF_MGMT_CAP_ESSi *always* (no IBSS ever) ++ * The specs are more than non-obvious on all that: ++ * ++ * 802.11 7.3.1.4 Capability Information field ++ ** APs set the ESS subfield to 1 and the IBSS subfield to 0 within ++ ** Beacon or Probe Response management frames. STAs within an IBSS ++ ** set the ESS subfield to 0 and the IBSS subfield to 1 in transmitted ++ ** Beacon or Probe Response management frames ++ ** ++ ** APs set the Privacy subfield to 1 within transmitted Beacon, ++ ** Probe Response, Association Response, and Reassociation Response ++ ** if WEP is required for all data type frames within the BSS. ++ ** STAs within an IBSS set the Privacy subfield to 1 in Beacon ++ ** or Probe Response management frames if WEP is required ++ ** for all data type frames within the IBSS */ ++ ++ /* note that returning 0 will be refused by several APs... ++ * (so this indicates that you're probably supposed to ++ * "confirm" the ESS mode) */ ++ cap = WF_MGMT_CAP_ESSi; ++ ++ /* this one used to be a check on wep_restricted, ++ * but more likely it's wep_enabled instead */ ++ if (adev->wep_enabled) ++ SET_BIT(cap, WF_MGMT_CAP_PRIVACYi); ++ ++ /* Probably we can just set these always, because our hw is ++ ** capable of shortpre and PBCC --vda */ ++ /* only ask for short preamble if the peer station supports it */ ++ if (adev->ap_client->cap_info & WF_MGMT_CAP_SHORT) ++ SET_BIT(cap, WF_MGMT_CAP_SHORTi); ++ /* only ask for PBCC support if the peer station supports it */ ++ if (adev->ap_client->cap_info & WF_MGMT_CAP_PBCC) ++ SET_BIT(cap, WF_MGMT_CAP_PBCCi); ++ ++ /* IEs: 1. caps */ ++ *(u16*)p = cap; p += 2; ++ /* 2. listen interval */ ++ *(u16*)p = host2ieee16(adev->listen_interval); p += 2; ++ /* 3. ESSID */ ++ p = wlan_fill_ie_ssid(p, ++ strlen(adev->essid_for_assoc), adev->essid_for_assoc); ++ /* 4. supp rates */ ++ prate = p; ++ p = wlan_fill_ie_rates(p, ++ adev->rate_supported_len, adev->rate_supported); ++ /* 5. ext supp rates */ ++ p = wlan_fill_ie_rates_ext(p, ++ adev->rate_supported_len, adev->rate_supported); ++ ++ if (acx_debug & L_DEBUG) { ++ printk("association: rates element\n"); ++ acx_dump_bytes(prate, p - prate); ++ } ++ ++ /* calculate lengths */ ++ packet_len = WLAN_HDR_A3_LEN + (p - body); ++ ++ log(L_ASSOC, "association: requesting caps 0x%04X, ESSID \"%s\"\n", ++ cap, adev->essid_for_assoc); ++ ++ acx_l_tx_data(adev, tx, packet_len); ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_transmit_disassoc ++** ++** FIXME: looks like incomplete implementation of a helper: ++** acx_l_transmit_disassoc(adev, clt) - kick this client (we're an AP) ++** acx_l_transmit_disassoc(adev, NULL) - leave BSSID (we're a STA) ++*/ ++#ifdef BROKEN ++int ++acx_l_transmit_disassoc(acx_device_t *adev, client_t *clt) ++{ ++ struct tx *tx; ++ struct wlan_hdr_mgmt *head; ++ struct disassoc_frame_body *body; ++ ++ FN_ENTER; ++/* if (clt != NULL) { */ ++ tx = acx_l_alloc_tx(adev); ++ if (!tx) ++ goto bad; ++ head = acx_l_get_txbuf(adev, tx); ++ if (!head) { ++ acx_l_dealloc_tx(adev, tx); ++ goto bad; ++ } ++ body = (void*)(head + 1); ++ ++/* clt->used = CLIENT_AUTHENTICATED_2; - not (yet?) associated */ ++ ++ head->fc = WF_FSTYPE_DISASSOCi; ++ head->dur = 0; ++ /* huh? It muchly depends on whether we're STA or AP... ++ ** sta->ap: da=bssid, sa=own, bssid=bssid ++ ** ap->sta: da=sta, sa=bssid, bssid=bssid. FIXME! */ ++ MAC_COPY(head->da, adev->bssid); ++ MAC_COPY(head->sa, adev->dev_addr); ++ MAC_COPY(head->bssid, adev->dev_addr); ++ head->seq = 0; ++ ++ /* "Class 3 frame received from nonassociated station." */ ++ body->reason = host2ieee16(7); ++ ++ /* fixed size struct, ok to sizeof */ ++ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + sizeof(*body)); ++/* } */ ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_s_complete_scan ++** ++** Called either from after_interrupt_task() if: ++** 1) there was Scan_Complete IRQ, or ++** 2) scanning expired in timer() ++** We need to decide which ESS or IBSS to join. ++** Iterates thru adev->sta_list: ++** if adev->ap is not bcast, will join only specified ++** ESS or IBSS with this bssid ++** checks peers' caps for ESS/IBSS bit ++** checks peers' SSID, allows exact match or hidden SSID ++** If station to join is chosen: ++** points adev->ap_client to the chosen struct client ++** sets adev->essid_for_assoc for future assoc attempt ++** Auth/assoc is not yet performed ++** Returns OK if there is no need to restart scan ++*/ ++int ++acx_s_complete_scan(acx_device_t *adev) ++{ ++ struct client *bss; ++ unsigned long flags; ++ u16 needed_cap; ++ int i; ++ int idx_found = -1; ++ int result = OK; ++ ++ FN_ENTER; ++ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ needed_cap = WF_MGMT_CAP_IBSS; /* 2, we require Ad-Hoc */ ++ break; ++ case ACX_MODE_2_STA: ++ needed_cap = WF_MGMT_CAP_ESS; /* 1, we require Managed */ ++ break; ++ default: ++ printk("acx: driver bug: mode=%d in complete_scan()\n", adev->mode); ++ dump_stack(); ++ goto end; ++ } ++ ++ acx_lock(adev, flags); ++ ++ /* TODO: sta_iterator hiding implementation would be nice here... */ ++ ++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) { ++ bss = &adev->sta_list[i]; ++ if (!bss->used) continue; ++ ++ ++ log(L_ASSOC, "scan table: SSID=\"%s\" CH=%d SIR=%d SNR=%d\n", ++ bss->essid, bss->channel, bss->sir, bss->snr); ++ ++ if (!mac_is_bcast(adev->ap)) ++ if (!mac_is_equal(bss->bssid, adev->ap)) ++ continue; /* keep looking */ ++ ++ /* broken peer with no mode flags set? */ ++ if (unlikely(!(bss->cap_info & (WF_MGMT_CAP_ESS | WF_MGMT_CAP_IBSS)))) { ++ printk("%s: strange peer "MACSTR" found with " ++ "neither ESS (AP) nor IBSS (Ad-Hoc) " ++ "capability - skipped\n", ++ adev->ndev->name, MAC(bss->address)); ++ continue; ++ } ++ log(L_ASSOC, "peer_cap 0x%04X, needed_cap 0x%04X\n", ++ bss->cap_info, needed_cap); ++ ++ /* does peer station support what we need? */ ++ if ((bss->cap_info & needed_cap) != needed_cap) ++ continue; /* keep looking */ ++ ++ /* strange peer with NO basic rates?! */ ++ if (unlikely(!bss->rate_bas)) { ++ printk("%s: strange peer "MACSTR" with empty rate set " ++ "- skipped\n", ++ adev->ndev->name, MAC(bss->address)); ++ continue; ++ } ++ ++ /* do we support all basic rates of this peer? */ ++ if ((bss->rate_bas & adev->rate_oper) != bss->rate_bas) { ++/* we probably need to have all rates as operational rates, ++ even in case of an 11M-only configuration */ ++#ifdef THIS_IS_TROUBLESOME ++ printk("%s: peer "MACSTR": incompatible basic rates " ++ "(AP requests 0x%04X, we have 0x%04X) " ++ "- skipped\n", ++ adev->ndev->name, MAC(bss->address), ++ bss->rate_bas, adev->rate_oper); ++ continue; ++#else ++ printk("%s: peer "MACSTR": incompatible basic rates " ++ "(AP requests 0x%04X, we have 0x%04X). " ++ "Considering anyway...\n", ++ adev->ndev->name, MAC(bss->address), ++ bss->rate_bas, adev->rate_oper); ++#endif ++ } ++ ++ if ( !(adev->reg_dom_chanmask & (1<<(bss->channel-1))) ) { ++ printk("%s: warning: peer "MACSTR" is on channel %d " ++ "outside of channel range of current " ++ "regulatory domain - couldn't join " ++ "even if other settings match. " ++ "You might want to adapt your config\n", ++ adev->ndev->name, MAC(bss->address), ++ bss->channel); ++ continue; /* keep looking */ ++ } ++ ++ if (!adev->essid_active || !strcmp(bss->essid, adev->essid)) { ++ log(L_ASSOC, ++ "found station with matching ESSID! ('%s' " ++ "station, '%s' config)\n", ++ bss->essid, ++ (adev->essid_active) ? adev->essid : "[any]"); ++ /* TODO: continue looking for peer with better SNR */ ++ bss->used = CLIENT_JOIN_CANDIDATE; ++ idx_found = i; ++ ++ /* stop searching if this station is ++ * on the current channel, otherwise ++ * keep looking for an even better match */ ++ if (bss->channel == adev->channel) ++ break; ++ } else ++ if (is_hidden_essid(bss->essid)) { ++ /* hmm, station with empty or single-space SSID: ++ * using hidden SSID broadcast? ++ */ ++ /* This behaviour is broken: which AP from zillion ++ ** of APs with hidden SSID you'd try? ++ ** We should use Probe requests to get Probe responses ++ ** and check for real SSID (are those never hidden?) */ ++ bss->used = CLIENT_JOIN_CANDIDATE; ++ if (idx_found == -1) ++ idx_found = i; ++ log(L_ASSOC, "found station with empty or " ++ "single-space (hidden) SSID, considering " ++ "for assoc attempt\n"); ++ /* ...and keep looking for better matches */ ++ } else { ++ log(L_ASSOC, "ESSID doesn't match! ('%s' " ++ "station, '%s' config)\n", ++ bss->essid, ++ (adev->essid_active) ? adev->essid : "[any]"); ++ } ++ } ++ ++ /* TODO: iterate thru join candidates instead */ ++ /* TODO: rescan if not associated within some timeout */ ++ if (idx_found != -1) { ++ char *essid_src; ++ size_t essid_len; ++ ++ bss = &adev->sta_list[idx_found]; ++ adev->ap_client = bss; ++ ++ if (is_hidden_essid(bss->essid)) { ++ /* if the ESSID of the station we found is empty ++ * (no broadcast), then use user-configured ESSID ++ * instead */ ++ essid_src = adev->essid; ++ essid_len = adev->essid_len; ++ } else { ++ essid_src = bss->essid; ++ essid_len = strlen(bss->essid); ++ } ++ ++ acx_update_capabilities(adev); ++ ++ memcpy(adev->essid_for_assoc, essid_src, essid_len); ++ adev->essid_for_assoc[essid_len] = '\0'; ++ adev->channel = bss->channel; ++ MAC_COPY(adev->bssid, bss->bssid); ++ ++ bss->rate_cfg = (bss->rate_cap & adev->rate_oper); ++ bss->rate_cur = 1 << lowest_bit(bss->rate_cfg); ++ bss->rate_100 = acx_rate111to100(bss->rate_cur); ++ ++ acxlog_mac(L_ASSOC, ++ "matching station found: ", adev->bssid, ", joining\n"); ++ ++ /* TODO: do we need to switch to the peer's channel first? */ ++ ++ if (ACX_MODE_0_ADHOC == adev->mode) { ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); ++ } else { ++ acx_l_transmit_authen1(adev); ++ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH); ++ } ++ } else { /* idx_found == -1 */ ++ /* uh oh, no station found in range */ ++ if (ACX_MODE_0_ADHOC == adev->mode) { ++ printk("%s: no matching station found in range, " ++ "generating our own IBSS instead\n", ++ adev->ndev->name); ++ /* we do it the HostAP way: */ ++ MAC_COPY(adev->bssid, adev->dev_addr); ++ adev->bssid[0] |= 0x02; /* 'local assigned addr' bit */ ++ /* add IBSS bit to our caps... */ ++ acx_update_capabilities(adev); ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); ++ /* In order to cmd_join be called below */ ++ idx_found = 0; ++ } else { ++ /* we shall scan again, AP can be ++ ** just temporarily powered off */ ++ log(L_ASSOC, ++ "no matching station found in range yet\n"); ++ acx_set_status(adev, ACX_STATUS_1_SCANNING); ++ result = NOT_OK; ++ } ++ } ++ ++ acx_unlock(adev, flags); ++ ++ if (idx_found != -1) { ++ if (ACX_MODE_0_ADHOC == adev->mode) { ++ /* need to update channel in beacon template */ ++ SET_BIT(adev->set_mask, SET_TEMPLATES); ++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) ++ acx_s_update_card_settings(adev); ++ } ++ /* Inform firmware on our decision to start or join BSS */ ++ acx_s_cmd_join_bssid(adev, adev->bssid); ++ } ++ ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_s_read_fw ++** ++** Loads a firmware image ++** ++** Returns: ++** 0 unable to load file ++** pointer to firmware success ++*/ ++firmware_image_t* ++acx_s_read_fw(struct device *dev, const char *file, u32 *size) ++{ ++ firmware_image_t *res; ++ const struct firmware *fw_entry; ++ ++ res = NULL; ++ log(L_INIT, "requesting firmware image '%s'\n", file); ++ if (!request_firmware(&fw_entry, file, dev)) { ++ *size = 8; ++ if (fw_entry->size >= 8) ++ *size = 8 + le32_to_cpu(*(u32 *)(fw_entry->data + 4)); ++ if (fw_entry->size != *size) { ++ printk("acx: firmware size does not match " ++ "firmware header: %d != %d, " ++ "aborting fw upload\n", ++ (int) fw_entry->size, (int) *size); ++ goto release_ret; ++ } ++ res = vmalloc(*size); ++ if (!res) { ++ printk("acx: no memory for firmware " ++ "(%u bytes)\n", *size); ++ goto release_ret; ++ } ++ memcpy(res, fw_entry->data, fw_entry->size); ++release_ret: ++ release_firmware(fw_entry); ++ return res; ++ } ++ printk("acx: firmware image '%s' was not provided. " ++ "Check your hotplug scripts\n", file); ++ ++ /* checksum will be verified in write_fw, so don't bother here */ ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acx_s_set_wepkey ++*/ ++static void ++acx100_s_set_wepkey(acx_device_t *adev) ++{ ++ ie_dot11WEPDefaultKey_t dk; ++ int i; ++ ++ for (i = 0; i < DOT11_MAX_DEFAULT_WEP_KEYS; i++) { ++ if (adev->wep_keys[i].size != 0) { ++ log(L_INIT, "setting WEP key: %d with " ++ "total size: %d\n", i, (int) adev->wep_keys[i].size); ++ dk.action = 1; ++ dk.keySize = adev->wep_keys[i].size; ++ dk.defaultKeyNum = i; ++ memcpy(dk.key, adev->wep_keys[i].key, dk.keySize); ++ acx_s_configure(adev, &dk, ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE); ++ } ++ } ++} ++ ++static void ++acx111_s_set_wepkey(acx_device_t *adev) ++{ ++ acx111WEPDefaultKey_t dk; ++ int i; ++ ++ for (i = 0; i < DOT11_MAX_DEFAULT_WEP_KEYS; i++) { ++ if (adev->wep_keys[i].size != 0) { ++ log(L_INIT, "setting WEP key: %d with " ++ "total size: %d\n", i, (int) adev->wep_keys[i].size); ++ memset(&dk, 0, sizeof(dk)); ++ dk.action = cpu_to_le16(1); /* "add key"; yes, that's a 16bit value */ ++ dk.keySize = adev->wep_keys[i].size; ++ ++ /* are these two lines necessary? */ ++ dk.type = 0; /* default WEP key */ ++ dk.index = 0; /* ignored when setting default key */ ++ ++ dk.defaultKeyNum = i; ++ memcpy(dk.key, adev->wep_keys[i].key, dk.keySize); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_WEP_MGMT, &dk, sizeof(dk)); ++ } ++ } ++} ++ ++static void ++acx_s_set_wepkey(acx_device_t *adev) ++{ ++ if (IS_ACX111(adev)) ++ acx111_s_set_wepkey(adev); ++ else ++ acx100_s_set_wepkey(adev); ++} ++ ++ ++/*********************************************************************** ++** acx100_s_init_wep ++** ++** FIXME: this should probably be moved into the new card settings ++** management, but since we're also modifying the memory map layout here ++** due to the WEP key space we want, we should take care... ++*/ ++static int ++acx100_s_init_wep(acx_device_t *adev) ++{ ++ acx100_ie_wep_options_t options; ++ ie_dot11WEPDefaultKeyID_t dk; ++ acx_ie_memmap_t pt; ++ int res = NOT_OK; ++ ++ FN_ENTER; ++ ++ if (OK != acx_s_interrogate(adev, &pt, ACX1xx_IE_MEMORY_MAP)) { ++ goto fail; ++ } ++ ++ log(L_DEBUG, "CodeEnd:%X\n", pt.CodeEnd); ++ ++ pt.WEPCacheStart = cpu_to_le32(le32_to_cpu(pt.CodeEnd) + 0x4); ++ pt.WEPCacheEnd = cpu_to_le32(le32_to_cpu(pt.CodeEnd) + 0x4); ++ ++ if (OK != acx_s_configure(adev, &pt, ACX1xx_IE_MEMORY_MAP)) { ++ goto fail; ++ } ++ ++ /* let's choose maximum setting: 4 default keys, plus 10 other keys: */ ++ options.NumKeys = cpu_to_le16(DOT11_MAX_DEFAULT_WEP_KEYS + 10); ++ options.WEPOption = 0x00; ++ ++ log(L_ASSOC, "%s: writing WEP options\n", __func__); ++ acx_s_configure(adev, &options, ACX100_IE_WEP_OPTIONS); ++ ++ acx100_s_set_wepkey(adev); ++ ++ if (adev->wep_keys[adev->wep_current_index].size != 0) { ++ log(L_ASSOC, "setting active default WEP key number: %d\n", ++ adev->wep_current_index); ++ dk.KeyID = adev->wep_current_index; ++ acx_s_configure(adev, &dk, ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET); /* 0x1010 */ ++ } ++ /* FIXME!!! wep_key_struct is filled nowhere! But adev ++ * is initialized to 0, and we don't REALLY need those keys either */ ++/* for (i = 0; i < 10; i++) { ++ if (adev->wep_key_struct[i].len != 0) { ++ MAC_COPY(wep_mgmt.MacAddr, adev->wep_key_struct[i].addr); ++ wep_mgmt.KeySize = cpu_to_le16(adev->wep_key_struct[i].len); ++ memcpy(&wep_mgmt.Key, adev->wep_key_struct[i].key, le16_to_cpu(wep_mgmt.KeySize)); ++ wep_mgmt.Action = cpu_to_le16(1); ++ log(L_ASSOC, "writing WEP key %d (len %d)\n", i, le16_to_cpu(wep_mgmt.KeySize)); ++ if (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_WEP_MGMT, &wep_mgmt, sizeof(wep_mgmt))) { ++ adev->wep_key_struct[i].index = i; ++ } ++ } ++ } ++*/ ++ ++ /* now retrieve the updated WEPCacheEnd pointer... */ ++ if (OK != acx_s_interrogate(adev, &pt, ACX1xx_IE_MEMORY_MAP)) { ++ printk("%s: ACX1xx_IE_MEMORY_MAP read #2 FAILED\n", ++ adev->ndev->name); ++ goto fail; ++ } ++ /* ...and tell it to start allocating templates at that location */ ++ /* (no endianness conversion needed) */ ++ pt.PacketTemplateStart = pt.WEPCacheEnd; ++ ++ if (OK != acx_s_configure(adev, &pt, ACX1xx_IE_MEMORY_MAP)) { ++ printk("%s: ACX1xx_IE_MEMORY_MAP write #2 FAILED\n", ++ adev->ndev->name); ++ goto fail; ++ } ++ res = OK; ++ ++fail: ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++static int ++acx_s_init_max_template_generic(acx_device_t *adev, unsigned int len, unsigned int cmd) ++{ ++ int res; ++ union { ++ acx_template_nullframe_t null; ++ acx_template_beacon_t b; ++ acx_template_tim_t tim; ++ acx_template_probereq_t preq; ++ acx_template_proberesp_t presp; ++ } templ; ++ ++ memset(&templ, 0, len); ++ templ.null.size = cpu_to_le16(len - 2); ++ res = acx_s_issue_cmd(adev, cmd, &templ, len); ++ return res; ++} ++ ++static inline int ++acx_s_init_max_null_data_template(acx_device_t *adev) ++{ ++ return acx_s_init_max_template_generic( ++ adev, sizeof(acx_template_nullframe_t), ACX1xx_CMD_CONFIG_NULL_DATA ++ ); ++} ++ ++static inline int ++acx_s_init_max_beacon_template(acx_device_t *adev) ++{ ++ return acx_s_init_max_template_generic( ++ adev, sizeof(acx_template_beacon_t), ACX1xx_CMD_CONFIG_BEACON ++ ); ++} ++ ++static inline int ++acx_s_init_max_tim_template(acx_device_t *adev) ++{ ++ return acx_s_init_max_template_generic( ++ adev, sizeof(acx_template_tim_t), ACX1xx_CMD_CONFIG_TIM ++ ); ++} ++ ++static inline int ++acx_s_init_max_probe_response_template(acx_device_t *adev) ++{ ++ return acx_s_init_max_template_generic( ++ adev, sizeof(acx_template_proberesp_t), ACX1xx_CMD_CONFIG_PROBE_RESPONSE ++ ); ++} ++ ++static inline int ++acx_s_init_max_probe_request_template(acx_device_t *adev) ++{ ++ return acx_s_init_max_template_generic( ++ adev, sizeof(acx_template_probereq_t), ACX1xx_CMD_CONFIG_PROBE_REQUEST ++ ); ++} ++ ++/*********************************************************************** ++** acx_s_set_tim_template ++** ++** FIXME: In full blown driver we will regularly update partial virtual bitmap ++** by calling this function ++** (it can be done by irq handler on each DTIM irq or by timer...) ++ ++[802.11 7.3.2.6] TIM information element: ++- 1 EID ++- 1 Length ++1 1 DTIM Count ++ indicates how many beacons (including this) appear before next DTIM ++ (0=this one is a DTIM) ++2 1 DTIM Period ++ number of beacons between successive DTIMs ++ (0=reserved, 1=all TIMs are DTIMs, 2=every other, etc) ++3 1 Bitmap Control ++ bit0: Traffic Indicator bit associated with Assoc ID 0 (Bcast AID?) ++ set to 1 in TIM elements with a value of 0 in the DTIM Count field ++ when one or more broadcast or multicast frames are buffered at the AP. ++ bit1-7: Bitmap Offset (logically Bitmap_Offset = Bitmap_Control & 0xFE). ++4 n Partial Virtual Bitmap ++ Visible part of traffic-indication bitmap. ++ Full bitmap consists of 2008 bits (251 octets) such that bit number N ++ (0<=N<=2007) in the bitmap corresponds to bit number (N mod 8) ++ in octet number N/8 where the low-order bit of each octet is bit0, ++ and the high order bit is bit7. ++ Each set bit in virtual bitmap corresponds to traffic buffered by AP ++ for a specific station (with corresponding AID?). ++ Partial Virtual Bitmap shows a part of bitmap which has non-zero. ++ Bitmap Offset is a number of skipped zero octets (see above). ++ 'Missing' octets at the tail are also assumed to be zero. ++ Example: Length=6, Bitmap_Offset=2, Partial_Virtual_Bitmap=55 55 55 ++ This means that traffic-indication bitmap is: ++ 00000000 00000000 01010101 01010101 01010101 00000000 00000000... ++ (is bit0 in the map is always 0 and real value is in Bitmap Control bit0?) ++*/ ++static int ++acx_s_set_tim_template(acx_device_t *adev) ++{ ++/* For now, configure smallish test bitmap, all zero ("no pending data") */ ++ enum { bitmap_size = 5 }; ++ ++ acx_template_tim_t t; ++ int result; ++ ++ FN_ENTER; ++ ++ memset(&t, 0, sizeof(t)); ++ t.size = 5 + bitmap_size; /* eid+len+count+period+bmap_ctrl + bmap */ ++ t.tim_eid = WLAN_EID_TIM; ++ t.len = 3 + bitmap_size; /* count+period+bmap_ctrl + bmap */ ++ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_TIM, &t, sizeof(t)); ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_fill_beacon_or_proberesp_template ++** ++** For frame format info, please see 802.11-1999.pdf item 7.2.3.9 and below!! ++** ++** NB: we use the fact that ++** struct acx_template_proberesp and struct acx_template_beacon are the same ++** (well, almost...) ++** ++** [802.11] Beacon's body consist of these IEs: ++** 1 Timestamp ++** 2 Beacon interval ++** 3 Capability information ++** 4 SSID ++** 5 Supported rates (up to 8 rates) ++** 6 FH Parameter Set (frequency-hopping PHYs only) ++** 7 DS Parameter Set (direct sequence PHYs only) ++** 8 CF Parameter Set (only if PCF is supported) ++** 9 IBSS Parameter Set (ad-hoc only) ++** ++** Beacon only: ++** 10 TIM (AP only) (see 802.11 7.3.2.6) ++** 11 Country Information (802.11d) ++** 12 FH Parameters (802.11d) ++** 13 FH Pattern Table (802.11d) ++** ... (?!! did not yet find relevant PDF file... --vda) ++** 19 ERP Information (extended rate PHYs) ++** 20 Extended Supported Rates (if more than 8 rates) ++** ++** Proberesp only: ++** 10 Country information (802.11d) ++** 11 FH Parameters (802.11d) ++** 12 FH Pattern Table (802.11d) ++** 13-n Requested information elements (802.11d) ++** ???? ++** 18 ERP Information (extended rate PHYs) ++** 19 Extended Supported Rates (if more than 8 rates) ++*/ ++static int ++acx_fill_beacon_or_proberesp_template(acx_device_t *adev, ++ struct acx_template_beacon *templ, ++ u16 fc /* in host order! */) ++{ ++ int len; ++ u8 *p; ++ ++ FN_ENTER; ++ ++ memset(templ, 0, sizeof(*templ)); ++ MAC_BCAST(templ->da); ++ MAC_COPY(templ->sa, adev->dev_addr); ++ MAC_COPY(templ->bssid, adev->bssid); ++ ++ templ->beacon_interval = cpu_to_le16(adev->beacon_interval); ++ acx_update_capabilities(adev); ++ templ->cap = cpu_to_le16(adev->capabilities); ++ ++ p = templ->variable; ++ p = wlan_fill_ie_ssid(p, adev->essid_len, adev->essid); ++ p = wlan_fill_ie_rates(p, adev->rate_supported_len, adev->rate_supported); ++ p = wlan_fill_ie_ds_parms(p, adev->channel); ++ /* NB: should go AFTER tim, but acx seem to keep tim last always */ ++ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len, adev->rate_supported); ++ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ /* ATIM window */ ++ p = wlan_fill_ie_ibss_parms(p, 0); break; ++ case ACX_MODE_3_AP: ++ /* TIM IE is set up as separate template */ ++ break; ++ } ++ ++ len = p - (u8*)templ; ++ templ->fc = cpu_to_le16(WF_FTYPE_MGMT | fc); ++ /* - 2: do not count 'u16 size' field */ ++ templ->size = cpu_to_le16(len - 2); ++ ++ FN_EXIT1(len); ++ return len; ++} ++ ++ ++#if POWER_SAVE_80211 ++/*********************************************************************** ++** acx_s_set_null_data_template ++*/ ++static int ++acx_s_set_null_data_template(acx_device_t *adev) ++{ ++ struct acx_template_nullframe b; ++ int result; ++ ++ FN_ENTER; ++ ++ /* memset(&b, 0, sizeof(b)); not needed, setting all members */ ++ ++ b.size = cpu_to_le16(sizeof(b) - 2); ++ b.hdr.fc = WF_FTYPE_MGMTi | WF_FSTYPE_NULLi; ++ b.hdr.dur = 0; ++ MAC_BCAST(b.hdr.a1); ++ MAC_COPY(b.hdr.a2, adev->dev_addr); ++ MAC_COPY(b.hdr.a3, adev->bssid); ++ b.hdr.seq = 0; ++ ++ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_NULL_DATA, &b, sizeof(b)); ++ ++ FN_EXIT1(result); ++ return result; ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_s_set_beacon_template ++*/ ++static int ++acx_s_set_beacon_template(acx_device_t *adev) ++{ ++ struct acx_template_beacon bcn; ++ int len, result; ++ ++ FN_ENTER; ++ ++ len = acx_fill_beacon_or_proberesp_template(adev, &bcn, WF_FSTYPE_BEACON); ++ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_BEACON, &bcn, len); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_s_set_probe_response_template ++*/ ++static int ++acx_s_set_probe_response_template(acx_device_t *adev) ++{ ++ struct acx_template_proberesp pr; ++ int len, result; ++ ++ FN_ENTER; ++ ++ len = acx_fill_beacon_or_proberesp_template(adev, &pr, WF_FSTYPE_PROBERESP); ++ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_PROBE_RESPONSE, &pr, len); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_s_init_packet_templates() ++** ++** NOTE: order is very important here, to have a correct memory layout! ++** init templates: max Probe Request (station mode), max NULL data, ++** max Beacon, max TIM, max Probe Response. ++*/ ++static int ++acx_s_init_packet_templates(acx_device_t *adev) ++{ ++ acx_ie_memmap_t mm; /* ACX100 only */ ++ int result = NOT_OK; ++ ++ FN_ENTER; ++ ++ log(L_DEBUG|L_INIT, "initializing max packet templates\n"); ++ ++ if (OK != acx_s_init_max_probe_request_template(adev)) ++ goto failed; ++ ++ if (OK != acx_s_init_max_null_data_template(adev)) ++ goto failed; ++ ++ if (OK != acx_s_init_max_beacon_template(adev)) ++ goto failed; ++ ++ if (OK != acx_s_init_max_tim_template(adev)) ++ goto failed; ++ ++ if (OK != acx_s_init_max_probe_response_template(adev)) ++ goto failed; ++ ++ if (IS_ACX111(adev)) { ++ /* ACX111 doesn't need the memory map magic below, ++ * and the other templates will be set later (acx_start) */ ++ result = OK; ++ goto success; ++ } ++ ++ /* ACX100 will have its TIM template set, ++ * and we also need to update the memory map */ ++ ++ if (OK != acx_s_set_tim_template(adev)) ++ goto failed_acx100; ++ ++ log(L_DEBUG, "sizeof(memmap)=%d bytes\n", (int)sizeof(mm)); ++ ++ if (OK != acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP)) ++ goto failed_acx100; ++ ++ mm.QueueStart = cpu_to_le32(le32_to_cpu(mm.PacketTemplateEnd) + 4); ++ if (OK != acx_s_configure(adev, &mm, ACX1xx_IE_MEMORY_MAP)) ++ goto failed_acx100; ++ ++ result = OK; ++ goto success; ++ ++failed_acx100: ++ log(L_DEBUG|L_INIT, ++ /* "cb=0x%X\n" */ ++ "ACXMemoryMap:\n" ++ ".CodeStart=0x%X\n" ++ ".CodeEnd=0x%X\n" ++ ".WEPCacheStart=0x%X\n" ++ ".WEPCacheEnd=0x%X\n" ++ ".PacketTemplateStart=0x%X\n" ++ ".PacketTemplateEnd=0x%X\n", ++ /* len, */ ++ le32_to_cpu(mm.CodeStart), ++ le32_to_cpu(mm.CodeEnd), ++ le32_to_cpu(mm.WEPCacheStart), ++ le32_to_cpu(mm.WEPCacheEnd), ++ le32_to_cpu(mm.PacketTemplateStart), ++ le32_to_cpu(mm.PacketTemplateEnd)); ++ ++failed: ++ printk("%s: %s() FAILED\n", adev->ndev->name, __func__); ++ ++success: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_s_set_probe_request_template(acx_device_t *adev) ++{ ++ struct acx_template_probereq probereq; ++ char *p; ++ int res; ++ int frame_len; ++ ++ FN_ENTER; ++ ++ memset(&probereq, 0, sizeof(probereq)); ++ ++ probereq.fc = WF_FTYPE_MGMTi | WF_FSTYPE_PROBEREQi; ++ MAC_BCAST(probereq.da); ++ MAC_COPY(probereq.sa, adev->dev_addr); ++ MAC_BCAST(probereq.bssid); ++ ++ p = probereq.variable; ++ p = wlan_fill_ie_ssid(p, adev->essid_len, adev->essid); ++ p = wlan_fill_ie_rates(p, adev->rate_supported_len, adev->rate_supported); ++ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len, adev->rate_supported); ++ frame_len = p - (char*)&probereq; ++ probereq.size = cpu_to_le16(frame_len - 2); ++ ++ res = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_PROBE_REQUEST, &probereq, frame_len); ++ FN_EXIT0; ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acx_s_init_mac ++*/ ++int ++acx_s_init_mac(acx_device_t *adev) ++{ ++ int result = NOT_OK; ++ ++ FN_ENTER; ++ ++ if (IS_ACX111(adev)) { ++ adev->ie_len = acx111_ie_len; ++ adev->ie_len_dot11 = acx111_ie_len_dot11; ++ } else { ++ adev->ie_len = acx100_ie_len; ++ adev->ie_len_dot11 = acx100_ie_len_dot11; ++ } ++ ++#if defined (ACX_MEM) ++ adev->memblocksize = 256; /* 256 is default */ ++ /* try to load radio for both ACX100 and ACX111, since both ++ * chips have at least some firmware versions making use of an ++ * external radio module */ ++ acxmem_s_upload_radio(adev); ++#else ++ if (IS_PCI(adev)) { ++ adev->memblocksize = 256; /* 256 is default */ ++ /* try to load radio for both ACX100 and ACX111, since both ++ * chips have at least some firmware versions making use of an ++ * external radio module */ ++ acxpci_s_upload_radio(adev); ++ } else { ++ adev->memblocksize = 128; ++ } ++#endif ++ ++ if (IS_ACX111(adev)) { ++ /* for ACX111, the order is different from ACX100 ++ 1. init packet templates ++ 2. create station context and create dma regions ++ 3. init wep default keys ++ */ ++ if (OK != acx_s_init_packet_templates(adev)) ++ goto fail; ++ if (OK != acx111_s_create_dma_regions(adev)) { ++ printk("%s: acx111_create_dma_regions FAILED\n", ++ adev->ndev->name); ++ goto fail; ++ } ++ } else { ++ if (OK != acx100_s_init_wep(adev)) ++ goto fail; ++ if (OK != acx_s_init_packet_templates(adev)) ++ goto fail; ++ if (OK != acx100_s_create_dma_regions(adev)) { ++ printk("%s: acx100_create_dma_regions FAILED\n", ++ adev->ndev->name); ++ goto fail; ++ } ++ } ++ ++ MAC_COPY(adev->ndev->dev_addr, adev->dev_addr); ++ result = OK; ++ ++fail: ++ if (result) ++ printk("acx: init_mac() FAILED\n"); ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++void ++acx_s_set_sane_reg_domain(acx_device_t *adev, int do_set) ++{ ++ unsigned mask; ++ ++ unsigned int i; ++ ++ for (i = 0; i < sizeof(acx_reg_domain_ids); i++) ++ if (acx_reg_domain_ids[i] == adev->reg_dom_id) ++ break; ++ ++ if (sizeof(acx_reg_domain_ids) == i) { ++ log(L_INIT, "Invalid or unsupported regulatory domain" ++ " 0x%02X specified, falling back to FCC (USA)!" ++ " Please report if this sounds fishy!\n", ++ adev->reg_dom_id); ++ i = 0; ++ adev->reg_dom_id = acx_reg_domain_ids[i]; ++ ++ /* since there was a mismatch, we need to force updating */ ++ do_set = 1; ++ } ++ ++ if (do_set) { ++ acx_ie_generic_t dom; ++ dom.m.bytes[0] = adev->reg_dom_id; ++ acx_s_configure(adev, &dom, ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN); ++ } ++ ++ adev->reg_dom_chanmask = reg_domain_channel_masks[i]; ++ ++ mask = (1 << (adev->channel - 1)); ++ if (!(adev->reg_dom_chanmask & mask)) { ++ /* hmm, need to adjust our channel to reside within domain */ ++ mask = 1; ++ for (i = 1; i <= 14; i++) { ++ if (adev->reg_dom_chanmask & mask) { ++ printk("%s: adjusting selected channel from %d " ++ "to %d due to new regulatory domain\n", ++ adev->ndev->name, adev->channel, i); ++ adev->channel = i; ++ break; ++ } ++ mask <<= 1; ++ } ++ } ++} ++ ++ ++#if POWER_SAVE_80211 ++static void ++acx_s_update_80211_powersave_mode(acx_device_t *adev) ++{ ++ /* merge both structs in a union to be able to have common code */ ++ union { ++ acx111_ie_powersave_t acx111; ++ acx100_ie_powersave_t acx100; ++ } pm; ++ ++ /* change 802.11 power save mode settings */ ++ log(L_INIT, "updating 802.11 power save mode settings: " ++ "wakeup_cfg 0x%02X, listen interval %u, " ++ "options 0x%02X, hangover period %u, " ++ "enhanced_ps_transition_time %u\n", ++ adev->ps_wakeup_cfg, adev->ps_listen_interval, ++ adev->ps_options, adev->ps_hangover_period, ++ adev->ps_enhanced_transition_time); ++ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT); ++ log(L_INIT, "Previous PS mode settings: wakeup_cfg 0x%02X, " ++ "listen interval %u, options 0x%02X, " ++ "hangover period %u, " ++ "enhanced_ps_transition_time %u, beacon_rx_time %u\n", ++ pm.acx111.wakeup_cfg, ++ pm.acx111.listen_interval, ++ pm.acx111.options, ++ pm.acx111.hangover_period, ++ IS_ACX111(adev) ? ++ pm.acx111.enhanced_ps_transition_time ++ : pm.acx100.enhanced_ps_transition_time, ++ IS_ACX111(adev) ? ++ pm.acx111.beacon_rx_time ++ : (u32)-1 ++ ); ++ pm.acx111.wakeup_cfg = adev->ps_wakeup_cfg; ++ pm.acx111.listen_interval = adev->ps_listen_interval; ++ pm.acx111.options = adev->ps_options; ++ pm.acx111.hangover_period = adev->ps_hangover_period; ++ if (IS_ACX111(adev)) { ++ pm.acx111.beacon_rx_time = cpu_to_le32(adev->ps_beacon_rx_time); ++ pm.acx111.enhanced_ps_transition_time = cpu_to_le32(adev->ps_enhanced_transition_time); ++ } else { ++ pm.acx100.enhanced_ps_transition_time = cpu_to_le16(adev->ps_enhanced_transition_time); ++ } ++ acx_s_configure(adev, &pm, ACX1xx_IE_POWER_MGMT); ++ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT); ++ log(L_INIT, "wakeup_cfg: 0x%02X\n", pm.acx111.wakeup_cfg); ++ acx_s_msleep(40); ++ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT); ++ log(L_INIT, "wakeup_cfg: 0x%02X\n", pm.acx111.wakeup_cfg); ++ log(L_INIT, "power save mode change %s\n", ++ (pm.acx111.wakeup_cfg & PS_CFG_PENDING) ? "FAILED" : "was successful"); ++ /* FIXME: maybe verify via PS_CFG_PENDING bit here ++ * that power save mode change was successful. */ ++ /* FIXME: we shouldn't trigger a scan immediately after ++ * fiddling with power save mode (since the firmware is sending ++ * a NULL frame then). */ ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_s_update_card_settings ++** ++** Applies accumulated changes in various adev->xxxx members ++** Called by ioctl commit handler, acx_start, acx_set_defaults, ++** acx_s_after_interrupt_task (if IRQ_CMD_UPDATE_CARD_CFG), ++*/ ++static void ++acx111_s_sens_radio_16_17(acx_device_t *adev) ++{ ++ u32 feature1, feature2; ++ ++ if ((adev->sensitivity < 1) || (adev->sensitivity > 3)) { ++ printk("%s: invalid sensitivity setting (1..3), " ++ "setting to 1\n", adev->ndev->name); ++ adev->sensitivity = 1; ++ } ++ acx111_s_get_feature_config(adev, &feature1, &feature2); ++ CLEAR_BIT(feature1, FEATURE1_LOW_RX|FEATURE1_EXTRA_LOW_RX); ++ if (adev->sensitivity > 1) ++ SET_BIT(feature1, FEATURE1_LOW_RX); ++ if (adev->sensitivity > 2) ++ SET_BIT(feature1, FEATURE1_EXTRA_LOW_RX); ++ acx111_s_feature_set(adev, feature1, feature2); ++} ++ ++ ++void ++acx_s_update_card_settings(acx_device_t *adev) ++{ ++ unsigned long flags; ++ unsigned int start_scan = 0; ++ int i; ++ ++ FN_ENTER; ++ ++ log(L_INIT, "get_mask 0x%08X, set_mask 0x%08X\n", ++ adev->get_mask, adev->set_mask); ++ ++ /* Track dependencies betweed various settings */ ++ ++ if (adev->set_mask & (GETSET_MODE|GETSET_RESCAN|GETSET_WEP)) { ++ log(L_INIT, "important setting has been changed. " ++ "Need to update packet templates, too\n"); ++ SET_BIT(adev->set_mask, SET_TEMPLATES); ++ } ++ if (adev->set_mask & GETSET_CHANNEL) { ++ /* This will actually tune RX/TX to the channel */ ++ SET_BIT(adev->set_mask, GETSET_RX|GETSET_TX); ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_3_AP: ++ /* Beacons contain channel# - update them */ ++ SET_BIT(adev->set_mask, SET_TEMPLATES); ++ } ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ start_scan = 1; ++ } ++ } ++ ++ /* Apply settings */ ++ ++#ifdef WHY_SHOULD_WE_BOTHER /* imagine we were just powered off */ ++ /* send a disassoc request in case it's required */ ++ if (adev->set_mask & (GETSET_MODE|GETSET_RESCAN|GETSET_CHANNEL|GETSET_WEP)) { ++ if (ACX_MODE_2_STA == adev->mode) { ++ if (ACX_STATUS_4_ASSOCIATED == adev->status) { ++ log(L_ASSOC, "we were ASSOCIATED - " ++ "sending disassoc request\n"); ++ acx_lock(adev, flags); ++ acx_l_transmit_disassoc(adev, NULL); ++ /* FIXME: deauth? */ ++ acx_unlock(adev, flags); ++ } ++ /* need to reset some other stuff as well */ ++ log(L_DEBUG, "resetting bssid\n"); ++ MAC_ZERO(adev->bssid); ++ SET_BIT(adev->set_mask, SET_TEMPLATES|SET_STA_LIST); ++ start_scan = 1; ++ } ++ } ++#endif ++ ++ if (adev->get_mask & GETSET_STATION_ID) { ++ u8 stationID[4 + ACX1xx_IE_DOT11_STATION_ID_LEN]; ++ const u8 *paddr; ++ ++ acx_s_interrogate(adev, &stationID, ACX1xx_IE_DOT11_STATION_ID); ++ paddr = &stationID[4]; ++ for (i = 0; i < ETH_ALEN; i++) { ++ /* we copy the MAC address (reversed in ++ * the card) to the netdevice's MAC ++ * address, and on ifup it will be ++ * copied into iwadev->dev_addr */ ++ adev->ndev->dev_addr[ETH_ALEN - 1 - i] = paddr[i]; ++ } ++ CLEAR_BIT(adev->get_mask, GETSET_STATION_ID); ++ } ++ ++ if (adev->get_mask & GETSET_SENSITIVITY) { ++ if ((RADIO_RFMD_11 == adev->radio_type) ++ || (RADIO_MAXIM_0D == adev->radio_type) ++ || (RADIO_RALINK_15 == adev->radio_type)) { ++ acx_s_read_phy_reg(adev, 0x30, &adev->sensitivity); ++ } else { ++ log(L_INIT, "don't know how to get sensitivity " ++ "for radio type 0x%02X\n", adev->radio_type); ++ adev->sensitivity = 0; ++ } ++ log(L_INIT, "got sensitivity value %u\n", adev->sensitivity); ++ ++ CLEAR_BIT(adev->get_mask, GETSET_SENSITIVITY); ++ } ++ ++ if (adev->get_mask & GETSET_ANTENNA) { ++ u8 antenna[4 + ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN]; ++ ++ memset(antenna, 0, sizeof(antenna)); ++ acx_s_interrogate(adev, antenna, ACX1xx_IE_DOT11_CURRENT_ANTENNA); ++ adev->antenna = antenna[4]; ++ log(L_INIT, "got antenna value 0x%02X\n", adev->antenna); ++ CLEAR_BIT(adev->get_mask, GETSET_ANTENNA); ++ } ++ ++ if (adev->get_mask & GETSET_ED_THRESH) { ++ if (IS_ACX100(adev)) { ++ u8 ed_threshold[4 + ACX100_IE_DOT11_ED_THRESHOLD_LEN]; ++ ++ memset(ed_threshold, 0, sizeof(ed_threshold)); ++ acx_s_interrogate(adev, ed_threshold, ACX100_IE_DOT11_ED_THRESHOLD); ++ adev->ed_threshold = ed_threshold[4]; ++ } else { ++ log(L_INIT, "acx111 doesn't support ED\n"); ++ adev->ed_threshold = 0; ++ } ++ log(L_INIT, "got Energy Detect (ED) threshold %u\n", adev->ed_threshold); ++ CLEAR_BIT(adev->get_mask, GETSET_ED_THRESH); ++ } ++ ++ if (adev->get_mask & GETSET_CCA) { ++ if (IS_ACX100(adev)) { ++ u8 cca[4 + ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN]; ++ ++ memset(cca, 0, sizeof(adev->cca)); ++ acx_s_interrogate(adev, cca, ACX1xx_IE_DOT11_CURRENT_CCA_MODE); ++ adev->cca = cca[4]; ++ } else { ++ log(L_INIT, "acx111 doesn't support CCA\n"); ++ adev->cca = 0; ++ } ++ log(L_INIT, "got Channel Clear Assessment (CCA) value %u\n", adev->cca); ++ CLEAR_BIT(adev->get_mask, GETSET_CCA); ++ } ++ ++ if (adev->get_mask & GETSET_REG_DOMAIN) { ++ acx_ie_generic_t dom; ++ ++ acx_s_interrogate(adev, &dom, ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN); ++ adev->reg_dom_id = dom.m.bytes[0]; ++ acx_s_set_sane_reg_domain(adev, 0); ++ log(L_INIT, "got regulatory domain 0x%02X\n", adev->reg_dom_id); ++ CLEAR_BIT(adev->get_mask, GETSET_REG_DOMAIN); ++ } ++ ++ if (adev->set_mask & GETSET_STATION_ID) { ++ u8 stationID[4 + ACX1xx_IE_DOT11_STATION_ID_LEN]; ++ u8 *paddr; ++ ++ paddr = &stationID[4]; ++ memcpy(adev->dev_addr, adev->ndev->dev_addr, ETH_ALEN); ++ for (i = 0; i < ETH_ALEN; i++) { ++ /* copy the MAC address we obtained when we noticed ++ * that the ethernet iface's MAC changed ++ * to the card (reversed in ++ * the card!) */ ++ paddr[i] = adev->dev_addr[ETH_ALEN - 1 - i]; ++ } ++ acx_s_configure(adev, &stationID, ACX1xx_IE_DOT11_STATION_ID); ++ CLEAR_BIT(adev->set_mask, GETSET_STATION_ID); ++ } ++ ++ if (adev->set_mask & SET_TEMPLATES) { ++ log(L_INIT, "updating packet templates\n"); ++ switch (adev->mode) { ++ case ACX_MODE_2_STA: ++ acx_s_set_probe_request_template(adev); ++#if POWER_SAVE_80211 ++ acx_s_set_null_data_template(adev); ++#endif ++ break; ++ case ACX_MODE_0_ADHOC: ++ acx_s_set_probe_request_template(adev); ++#if POWER_SAVE_80211 ++ /* maybe power save functionality is somehow possible ++ * for Ad-Hoc mode, too... FIXME: verify it somehow? firmware debug fields? */ ++ acx_s_set_null_data_template(adev); ++#endif ++ /* fall through */ ++ case ACX_MODE_3_AP: ++ acx_s_set_beacon_template(adev); ++ acx_s_set_tim_template(adev); ++ /* BTW acx111 firmware would not send probe responses ++ ** if probe request does not have all basic rates flagged ++ ** by 0x80! Thus firmware does not conform to 802.11, ++ ** it should ignore 0x80 bit in ratevector from STA. ++ ** We can 'fix' it by not using this template and ++ ** sending probe responses by hand. TODO --vda */ ++ acx_s_set_probe_response_template(adev); ++ } ++ /* Needed if generated frames are to be emitted at different tx rate now */ ++ log(L_IRQ, "redoing cmd_join_bssid() after template cfg\n"); ++ acx_s_cmd_join_bssid(adev, adev->bssid); ++ CLEAR_BIT(adev->set_mask, SET_TEMPLATES); ++ } ++ if (adev->set_mask & SET_STA_LIST) { ++ acx_lock(adev, flags); ++ acx_l_sta_list_init(adev); ++ CLEAR_BIT(adev->set_mask, SET_STA_LIST); ++ acx_unlock(adev, flags); ++ } ++ if (adev->set_mask & SET_RATE_FALLBACK) { ++ u8 rate[4 + ACX1xx_IE_RATE_FALLBACK_LEN]; ++ ++ /* configure to not do fallbacks when not in auto rate mode */ ++ rate[4] = (adev->rate_auto) ? /* adev->txrate_fallback_retries */ 1 : 0; ++ log(L_INIT, "updating Tx fallback to %u retries\n", rate[4]); ++ acx_s_configure(adev, &rate, ACX1xx_IE_RATE_FALLBACK); ++ CLEAR_BIT(adev->set_mask, SET_RATE_FALLBACK); ++ } ++ if (adev->set_mask & GETSET_TXPOWER) { ++ log(L_INIT, "updating transmit power: %u dBm\n", ++ adev->tx_level_dbm); ++ acx_s_set_tx_level(adev, adev->tx_level_dbm); ++ CLEAR_BIT(adev->set_mask, GETSET_TXPOWER); ++ } ++ ++ if (adev->set_mask & GETSET_SENSITIVITY) { ++ log(L_INIT, "updating sensitivity value: %u\n", ++ adev->sensitivity); ++ switch (adev->radio_type) { ++ case RADIO_RFMD_11: ++ case RADIO_MAXIM_0D: ++ case RADIO_RALINK_15: ++ acx_s_write_phy_reg(adev, 0x30, adev->sensitivity); ++ break; ++ case RADIO_RADIA_16: ++ case RADIO_UNKNOWN_17: ++ acx111_s_sens_radio_16_17(adev); ++ break; ++ default: ++ log(L_INIT, "don't know how to modify sensitivity " ++ "for radio type 0x%02X\n", adev->radio_type); ++ } ++ CLEAR_BIT(adev->set_mask, GETSET_SENSITIVITY); ++ } ++ ++ if (adev->set_mask & GETSET_ANTENNA) { ++ /* antenna */ ++ u8 antenna[4 + ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN]; ++ ++ memset(antenna, 0, sizeof(antenna)); ++ antenna[4] = adev->antenna; ++ log(L_INIT, "updating antenna value: 0x%02X\n", ++ adev->antenna); ++ acx_s_configure(adev, &antenna, ACX1xx_IE_DOT11_CURRENT_ANTENNA); ++ CLEAR_BIT(adev->set_mask, GETSET_ANTENNA); ++ } ++ ++ if (adev->set_mask & GETSET_ED_THRESH) { ++ /* ed_threshold */ ++ log(L_INIT, "updating Energy Detect (ED) threshold: %u\n", ++ adev->ed_threshold); ++ if (IS_ACX100(adev)) { ++ u8 ed_threshold[4 + ACX100_IE_DOT11_ED_THRESHOLD_LEN]; ++ ++ memset(ed_threshold, 0, sizeof(ed_threshold)); ++ ed_threshold[4] = adev->ed_threshold; ++ acx_s_configure(adev, &ed_threshold, ACX100_IE_DOT11_ED_THRESHOLD); ++ } ++ else ++ log(L_INIT, "acx111 doesn't support ED!\n"); ++ CLEAR_BIT(adev->set_mask, GETSET_ED_THRESH); ++ } ++ ++ if (adev->set_mask & GETSET_CCA) { ++ /* CCA value */ ++ log(L_INIT, "updating Channel Clear Assessment " ++ "(CCA) value: 0x%02X\n", adev->cca); ++ if (IS_ACX100(adev)) { ++ u8 cca[4 + ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN]; ++ ++ memset(cca, 0, sizeof(cca)); ++ cca[4] = adev->cca; ++ acx_s_configure(adev, &cca, ACX1xx_IE_DOT11_CURRENT_CCA_MODE); ++ } ++ else ++ log(L_INIT, "acx111 doesn't support CCA!\n"); ++ CLEAR_BIT(adev->set_mask, GETSET_CCA); ++ } ++ ++ if (adev->set_mask & GETSET_LED_POWER) { ++ /* Enable Tx */ ++ log(L_INIT, "updating power LED status: %u\n", adev->led_power); ++ ++ acx_lock(adev, flags); ++#if defined (ACX_MEM) ++ acxmem_l_power_led(adev, adev->led_power); ++#else ++ if (IS_PCI(adev)) ++ acxpci_l_power_led(adev, adev->led_power); ++#endif ++ CLEAR_BIT(adev->set_mask, GETSET_LED_POWER); ++ acx_unlock(adev, flags); ++ } ++ ++ if (adev->set_mask & GETSET_POWER_80211) { ++#if POWER_SAVE_80211 ++ acx_s_update_80211_powersave_mode(adev); ++#endif ++ CLEAR_BIT(adev->set_mask, GETSET_POWER_80211); ++ } ++ ++ if (adev->set_mask & GETSET_CHANNEL) { ++ /* channel */ ++ log(L_INIT, "updating channel to: %u\n", adev->channel); ++ CLEAR_BIT(adev->set_mask, GETSET_CHANNEL); ++ } ++ ++ if (adev->set_mask & GETSET_TX) { ++ /* set Tx */ ++ log(L_INIT, "updating: %s Tx\n", ++ adev->tx_disabled ? "disable" : "enable"); ++ if (adev->tx_disabled) ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0); ++ else ++ acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_TX, &adev->channel, 1); ++ CLEAR_BIT(adev->set_mask, GETSET_TX); ++ } ++ ++ if (adev->set_mask & GETSET_RX) { ++ /* Enable Rx */ ++ log(L_INIT, "updating: enable Rx on channel: %u\n", ++ adev->channel); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_RX, &adev->channel, 1); ++ CLEAR_BIT(adev->set_mask, GETSET_RX); ++ } ++ ++ if (adev->set_mask & GETSET_RETRY) { ++ u8 short_retry[4 + ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN]; ++ u8 long_retry[4 + ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN]; ++ ++ log(L_INIT, "updating short retry limit: %u, long retry limit: %u\n", ++ adev->short_retry, adev->long_retry); ++ short_retry[0x4] = adev->short_retry; ++ long_retry[0x4] = adev->long_retry; ++ acx_s_configure(adev, &short_retry, ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT); ++ acx_s_configure(adev, &long_retry, ACX1xx_IE_DOT11_LONG_RETRY_LIMIT); ++ CLEAR_BIT(adev->set_mask, GETSET_RETRY); ++ } ++ ++ if (adev->set_mask & SET_MSDU_LIFETIME) { ++ u8 xmt_msdu_lifetime[4 + ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN]; ++ ++ log(L_INIT, "updating tx MSDU lifetime: %u\n", ++ adev->msdu_lifetime); ++ *(u32 *)&xmt_msdu_lifetime[4] = cpu_to_le32((u32)adev->msdu_lifetime); ++ acx_s_configure(adev, &xmt_msdu_lifetime, ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME); ++ CLEAR_BIT(adev->set_mask, SET_MSDU_LIFETIME); ++ } ++ ++ if (adev->set_mask & GETSET_REG_DOMAIN) { ++ log(L_INIT, "updating regulatory domain: 0x%02X\n", ++ adev->reg_dom_id); ++ acx_s_set_sane_reg_domain(adev, 1); ++ CLEAR_BIT(adev->set_mask, GETSET_REG_DOMAIN); ++ } ++ ++ if (adev->set_mask & GETSET_MODE) { ++ adev->ndev->type = (adev->mode == ACX_MODE_MONITOR) ? ++ adev->monitor_type : ARPHRD_ETHER; ++ ++ switch (adev->mode) { ++ case ACX_MODE_3_AP: ++ ++ acx_lock(adev, flags); ++ acx_l_sta_list_init(adev); ++ adev->aid = 0; ++ adev->ap_client = NULL; ++ MAC_COPY(adev->bssid, adev->dev_addr); ++ /* this basically says "we're connected" */ ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); ++ acx_unlock(adev, flags); ++ ++ acx111_s_feature_off(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER); ++ /* start sending beacons */ ++ acx_s_cmd_join_bssid(adev, adev->bssid); ++ break; ++ case ACX_MODE_MONITOR: ++ acx111_s_feature_on(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER); ++ /* this stops beacons */ ++ acx_s_cmd_join_bssid(adev, adev->bssid); ++ /* this basically says "we're connected" */ ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); ++ SET_BIT(adev->set_mask, SET_RXCONFIG|SET_WEP_OPTIONS); ++ break; ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ acx111_s_feature_off(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER); ++ ++ acx_lock(adev, flags); ++ adev->aid = 0; ++ adev->ap_client = NULL; ++ acx_unlock(adev, flags); ++ ++ /* we want to start looking for peer or AP */ ++ start_scan = 1; ++ break; ++ case ACX_MODE_OFF: ++ /* TODO: disable RX/TX, stop any scanning activity etc: */ ++ /* adev->tx_disabled = 1; */ ++ /* SET_BIT(adev->set_mask, GETSET_RX|GETSET_TX); */ ++ ++ /* This stops beacons (invalid macmode...) */ ++ acx_s_cmd_join_bssid(adev, adev->bssid); ++ acx_set_status(adev, ACX_STATUS_0_STOPPED); ++ break; ++ } ++ CLEAR_BIT(adev->set_mask, GETSET_MODE); ++ } ++ ++ if (adev->set_mask & SET_RXCONFIG) { ++ acx_s_initialize_rx_config(adev); ++ CLEAR_BIT(adev->set_mask, SET_RXCONFIG); ++ } ++ ++ if (adev->set_mask & GETSET_RESCAN) { ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ start_scan = 1; ++ break; ++ } ++ CLEAR_BIT(adev->set_mask, GETSET_RESCAN); ++ } ++ ++ if (adev->set_mask & GETSET_WEP) { ++ /* encode */ ++ ++ ie_dot11WEPDefaultKeyID_t dkey; ++#ifdef DEBUG_WEP ++ struct { ++ u16 type; ++ u16 len; ++ u8 val; ++ } ACX_PACKED keyindic; ++#endif ++ log(L_INIT, "updating WEP key settings\n"); ++ ++ acx_s_set_wepkey(adev); ++ ++ dkey.KeyID = adev->wep_current_index; ++ log(L_INIT, "setting WEP key %u as default\n", dkey.KeyID); ++ acx_s_configure(adev, &dkey, ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET); ++#ifdef DEBUG_WEP ++ keyindic.val = 3; ++ acx_s_configure(adev, &keyindic, ACX111_IE_KEY_CHOOSE); ++#endif ++ start_scan = 1; ++ CLEAR_BIT(adev->set_mask, GETSET_WEP); ++ } ++ ++ if (adev->set_mask & SET_WEP_OPTIONS) { ++ acx100_ie_wep_options_t options; ++ if (IS_ACX111(adev)) { ++ log(L_DEBUG, "setting WEP Options for acx111 is not supported\n"); ++ } else { ++ log(L_INIT, "setting WEP Options\n"); ++ acx100_s_init_wep(adev); ++#if 0 ++ /* let's choose maximum setting: 4 default keys, ++ * plus 10 other keys: */ ++ options.NumKeys = cpu_to_le16(DOT11_MAX_DEFAULT_WEP_KEYS + 10); ++ /* don't decrypt default key only, ++ * don't override decryption: */ ++ options.WEPOption = 0; ++ if (adev->mode == ACX_MODE_MONITOR) { ++ /* don't decrypt default key only, ++ * override decryption mechanism: */ ++ options.WEPOption = 2; ++ } ++ ++ acx_s_configure(adev, &options, ACX100_IE_WEP_OPTIONS); ++#endif ++ } ++ CLEAR_BIT(adev->set_mask, SET_WEP_OPTIONS); ++ } ++ ++ /* Rescan was requested */ ++ if (start_scan) { ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ /* We can avoid clearing list if join code ++ ** will be a bit more clever about not picking ++ ** 'bad' AP over and over again */ ++ acx_lock(adev, flags); ++ adev->ap_client = NULL; ++ acx_l_sta_list_init(adev); ++ acx_set_status(adev, ACX_STATUS_1_SCANNING); ++ acx_unlock(adev, flags); ++ ++ acx_s_cmd_start_scan(adev); ++ } ++ } ++ ++ /* debug, rate, and nick don't need any handling */ ++ /* what about sniffing mode?? */ ++ ++ log(L_INIT, "get_mask 0x%08X, set_mask 0x%08X - after update\n", ++ adev->get_mask, adev->set_mask); ++ ++/* end: */ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_e_after_interrupt_task ++*/ ++static int ++acx_s_recalib_radio(acx_device_t *adev) ++{ ++ if (IS_ACX111(adev)) { ++ acx111_cmd_radiocalib_t cal; ++ ++ printk("%s: recalibrating radio\n", adev->ndev->name); ++ /* automatic recalibration, choose all methods: */ ++ cal.methods = cpu_to_le32(0x8000000f); ++ /* automatic recalibration every 60 seconds (value in TUs) ++ * I wonder what the firmware default here is? */ ++ cal.interval = cpu_to_le32(58594); ++ return acx_s_issue_cmd_timeo(adev, ACX111_CMD_RADIOCALIB, ++ &cal, sizeof(cal), CMD_TIMEOUT_MS(100)); ++ } else { ++ /* On ACX100, we need to recalibrate the radio ++ * by issuing a GETSET_TX|GETSET_RX */ ++ if (/* (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0)) && ++ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0)) && */ ++ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_TX, &adev->channel, 1)) && ++ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_RX, &adev->channel, 1)) ) ++ return OK; ++ return NOT_OK; ++ } ++} ++ ++static void ++acx_s_after_interrupt_recalib(acx_device_t *adev) ++{ ++ int res; ++ ++ /* this helps with ACX100 at least; ++ * hopefully ACX111 also does a ++ * recalibration here */ ++ ++ /* clear flag beforehand, since we want to make sure ++ * it's cleared; then only set it again on specific circumstances */ ++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_RADIO_RECALIB); ++ ++ /* better wait a bit between recalibrations to ++ * prevent overheating due to torturing the card ++ * into working too long despite high temperature ++ * (just a safety measure) */ ++ if (adev->recalib_time_last_success ++ && time_before(jiffies, adev->recalib_time_last_success ++ + RECALIB_PAUSE * 60 * HZ)) { ++ if (adev->recalib_msg_ratelimit <= 4) { ++ printk("%s: less than " STRING(RECALIB_PAUSE) ++ " minutes since last radio recalibration, " ++ "not recalibrating (maybe card is too hot?)\n", ++ adev->ndev->name); ++ adev->recalib_msg_ratelimit++; ++ if (adev->recalib_msg_ratelimit == 5) ++ printk("disabling above message until next recalib\n"); ++ } ++ return; ++ } ++ ++ adev->recalib_msg_ratelimit = 0; ++ ++ /* note that commands sometimes fail (card busy), ++ * so only clear flag if we were fully successful */ ++ res = acx_s_recalib_radio(adev); ++ if (res == OK) { ++ printk("%s: successfully recalibrated radio\n", ++ adev->ndev->name); ++ adev->recalib_time_last_success = jiffies; ++ adev->recalib_failure_count = 0; ++ } else { ++ /* failed: resubmit, but only limited ++ * amount of times within some time range ++ * to prevent endless loop */ ++ ++ adev->recalib_time_last_success = 0; /* we failed */ ++ ++ /* if some time passed between last ++ * attempts, then reset failure retry counter ++ * to be able to do next recalib attempt */ ++ if (time_after(jiffies, adev->recalib_time_last_attempt + 5*HZ)) ++ adev->recalib_failure_count = 0; ++ ++ if (adev->recalib_failure_count < 5) { ++ /* increment inside only, for speedup of outside path */ ++ adev->recalib_failure_count++; ++ adev->recalib_time_last_attempt = jiffies; ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB); ++ } ++ } ++} ++ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20) ++static void ++acx_e_after_interrupt_task(struct work_struct *work) ++{ ++ acx_device_t *adev = container_of(work, acx_device_t, after_interrupt_task); ++#else ++ static void ++ acx_e_after_interrupt_task(void *data) ++ { ++ struct net_device *ndev = (struct net_device*)data; ++ acx_device_t *adev = ndev2adev(ndev); ++#endif ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ if (!adev->after_interrupt_jobs) ++ goto end; /* no jobs to do */ ++ ++#if TX_CLEANUP_IN_SOFTIRQ ++ /* can happen only on PCI */ ++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_TX_CLEANUP) { ++ acx_lock(adev, flags); ++ acxpci_l_clean_txdesc(adev); ++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_TX_CLEANUP); ++ acx_unlock(adev, flags); ++ } ++#endif ++ /* we see lotsa tx errors */ ++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_RADIO_RECALIB) { ++ acx_s_after_interrupt_recalib(adev); ++ } ++ ++ /* a poor interrupt code wanted to do update_card_settings() */ ++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_UPDATE_CARD_CFG) { ++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) ++ acx_s_update_card_settings(adev); ++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_UPDATE_CARD_CFG); ++ } ++ ++ /* 1) we detected that no Scan_Complete IRQ came from fw, or ++ ** 2) we found too many STAs */ ++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_STOP_SCAN) { ++ log(L_IRQ, "sending a stop scan cmd...\n"); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_STOP_SCAN, NULL, 0); ++ /* HACK: set the IRQ bit, since we won't get a ++ * scan complete IRQ any more on ACX111 (works on ACX100!), ++ * since _we_, not a fw, have stopped the scan */ ++ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE); ++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_STOP_SCAN); ++ } ++ ++ /* either fw sent Scan_Complete or we detected that ++ ** no Scan_Complete IRQ came from fw. Finish scanning, ++ ** pick join partner if any */ ++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_COMPLETE_SCAN) { ++ if (adev->status == ACX_STATUS_1_SCANNING) { ++ if (OK != acx_s_complete_scan(adev)) { ++ SET_BIT(adev->after_interrupt_jobs, ++ ACX_AFTER_IRQ_RESTART_SCAN); ++ } ++ } else { ++ /* + scan kills current join status - restore it ++ ** (do we need it for STA?) */ ++ /* + does it happen only with active scans? ++ ** active and passive scans? ALL scans including ++ ** background one? */ ++ /* + was not verified that everything is restored ++ ** (but at least we start to emit beacons again) */ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_3_AP: ++ log(L_IRQ, "redoing cmd_join_bssid() after scan\n"); ++ acx_s_cmd_join_bssid(adev, adev->bssid); ++ } ++ } ++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_COMPLETE_SCAN); ++ } ++ ++ /* STA auth or assoc timed out, start over again */ ++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_RESTART_SCAN) { ++ log(L_IRQ, "sending a start_scan cmd...\n"); ++ acx_s_cmd_start_scan(adev); ++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_RESTART_SCAN); ++ } ++ ++ /* whee, we got positive assoc response! 8) */ ++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_ASSOCIATE) { ++ acx_ie_generic_t pdr; ++ /* tiny race window exists, checking that we still a STA */ ++ switch (adev->mode) { ++ case ACX_MODE_2_STA: ++ pdr.m.aid = cpu_to_le16(adev->aid); ++ acx_s_configure(adev, &pdr, ACX1xx_IE_ASSOC_ID); ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); ++ log(L_ASSOC|L_DEBUG, "ASSOCIATED!\n"); ++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_ASSOCIATE); ++ } ++ } ++end: ++ acx_sem_unlock(adev); ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_schedule_task ++** ++** Schedule the call of the after_interrupt method after leaving ++** the interrupt context. ++*/ ++void ++acx_schedule_task(acx_device_t *adev, unsigned int set_flag) ++{ ++ SET_BIT(adev->after_interrupt_jobs, set_flag); ++ SCHEDULE_WORK(&adev->after_interrupt_task); ++} ++ ++ ++/*********************************************************************** ++*/ ++void ++acx_init_task_scheduler(acx_device_t *adev) ++{ ++ /* configure task scheduler */ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20) ++ INIT_WORK(&adev->after_interrupt_task, acx_e_after_interrupt_task); ++#else ++ INIT_WORK(&adev->after_interrupt_task, acx_e_after_interrupt_task, ++ adev->ndev); ++#endif ++} ++ ++ ++/*********************************************************************** ++** acx_s_start ++*/ ++void ++acx_s_start(acx_device_t *adev) ++{ ++ FN_ENTER; ++ ++ /* ++ * Ok, now we do everything that can possibly be done with ioctl ++ * calls to make sure that when it was called before the card ++ * was up we get the changes asked for ++ */ ++ ++ SET_BIT(adev->set_mask, SET_TEMPLATES|SET_STA_LIST|GETSET_WEP ++ |GETSET_TXPOWER|GETSET_ANTENNA|GETSET_ED_THRESH|GETSET_CCA ++ |GETSET_REG_DOMAIN|GETSET_MODE|GETSET_CHANNEL ++ |GETSET_TX|GETSET_RX|GETSET_STATION_ID); ++ ++ log(L_INIT, "updating initial settings on iface activation\n"); ++ acx_s_update_card_settings(adev); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acx_update_capabilities ++*/ ++void ++acx_update_capabilities(acx_device_t *adev) ++{ ++ u16 cap = 0; ++ ++ switch (adev->mode) { ++ case ACX_MODE_3_AP: ++ SET_BIT(cap, WF_MGMT_CAP_ESS); break; ++ case ACX_MODE_0_ADHOC: ++ SET_BIT(cap, WF_MGMT_CAP_IBSS); break; ++ /* other types of stations do not emit beacons */ ++ } ++ ++ if (adev->wep_restricted) { ++ SET_BIT(cap, WF_MGMT_CAP_PRIVACY); ++ } ++ if (adev->cfgopt_dot11ShortPreambleOption) { ++ SET_BIT(cap, WF_MGMT_CAP_SHORT); ++ } ++ if (adev->cfgopt_dot11PBCCOption) { ++ SET_BIT(cap, WF_MGMT_CAP_PBCC); ++ } ++ if (adev->cfgopt_dot11ChannelAgility) { ++ SET_BIT(cap, WF_MGMT_CAP_AGILITY); ++ } ++ log(L_DEBUG, "caps updated from 0x%04X to 0x%04X\n", ++ adev->capabilities, cap); ++ adev->capabilities = cap; ++} ++ ++/*********************************************************************** ++** Common function to parse ALL configoption struct formats ++** (ACX100 and ACX111; FIXME: how to make it work with ACX100 USB!?!?). ++** FIXME: logging should be removed here and added to a /proc file instead ++*/ ++void ++acx_s_parse_configoption(acx_device_t *adev, const acx111_ie_configoption_t *pcfg) ++{ ++ const u8 *pEle; ++ int i; ++ int is_acx111 = IS_ACX111(adev); ++ ++ if (acx_debug & L_DEBUG) { ++ printk("configoption struct content:\n"); ++ acx_dump_bytes(pcfg, sizeof(*pcfg)); ++ } ++ ++ if (( is_acx111 && (adev->eeprom_version == 5)) ++ || (!is_acx111 && (adev->eeprom_version == 4)) ++ || (!is_acx111 && (adev->eeprom_version == 5))) { ++ /* these versions are known to be supported */ ++ } else { ++ printk("unknown chip and EEPROM version combination (%s, v%d), " ++ "don't know how to parse config options yet. " ++ "Please report\n", is_acx111 ? "ACX111" : "ACX100", ++ adev->eeprom_version); ++ return; ++ } ++ ++ /* first custom-parse the first part which has chip-specific layout */ ++ ++ pEle = (const u8 *) pcfg; ++ ++ pEle += 4; /* skip (type,len) header */ ++ ++ memcpy(adev->cfgopt_NVSv, pEle, sizeof(adev->cfgopt_NVSv)); ++ pEle += sizeof(adev->cfgopt_NVSv); ++ ++ if (is_acx111) { ++ adev->cfgopt_NVS_vendor_offs = le16_to_cpu(*(u16 *)pEle); ++ pEle += sizeof(adev->cfgopt_NVS_vendor_offs); ++ ++ adev->cfgopt_probe_delay = 200; /* good default value? */ ++ pEle += 2; /* FIXME: unknown, value 0x0001 */ ++ } else { ++ memcpy(adev->cfgopt_MAC, pEle, sizeof(adev->cfgopt_MAC)); ++ pEle += sizeof(adev->cfgopt_MAC); ++ ++ adev->cfgopt_probe_delay = le16_to_cpu(*(u16 *)pEle); ++ pEle += sizeof(adev->cfgopt_probe_delay); ++ if ((adev->cfgopt_probe_delay < 100) || (adev->cfgopt_probe_delay > 500)) { ++ printk("strange probe_delay value %d, " ++ "tweaking to 200\n", adev->cfgopt_probe_delay); ++ adev->cfgopt_probe_delay = 200; ++ } ++ } ++ ++ adev->cfgopt_eof_memory = le32_to_cpu(*(u32 *)pEle); ++ pEle += sizeof(adev->cfgopt_eof_memory); ++ ++ printk("NVS_vendor_offs:%04X probe_delay:%d eof_memory:%d\n", ++ adev->cfgopt_NVS_vendor_offs, ++ adev->cfgopt_probe_delay, ++ adev->cfgopt_eof_memory); ++ ++ adev->cfgopt_dot11CCAModes = *pEle++; ++ adev->cfgopt_dot11Diversity = *pEle++; ++ adev->cfgopt_dot11ShortPreambleOption = *pEle++; ++ adev->cfgopt_dot11PBCCOption = *pEle++; ++ adev->cfgopt_dot11ChannelAgility = *pEle++; ++ adev->cfgopt_dot11PhyType = *pEle++; ++ adev->cfgopt_dot11TempType = *pEle++; ++ printk("CCAModes:%02X Diversity:%02X ShortPreOpt:%02X " ++ "PBCC:%02X ChanAgil:%02X PHY:%02X Temp:%02X\n", ++ adev->cfgopt_dot11CCAModes, ++ adev->cfgopt_dot11Diversity, ++ adev->cfgopt_dot11ShortPreambleOption, ++ adev->cfgopt_dot11PBCCOption, ++ adev->cfgopt_dot11ChannelAgility, ++ adev->cfgopt_dot11PhyType, ++ adev->cfgopt_dot11TempType); ++ ++ /* then use common parsing for next part which has common layout */ ++ ++ pEle++; /* skip table_count (6) */ ++ ++ if (IS_MEM(adev) && IS_ACX100(adev)) ++ { ++ /* ++ * For iPaq hx4700 Generic Slave F/W 1.10.7.K. I'm not sure if these ++ * 4 extra bytes are before the dot11 things above or after, so I'm just ++ * going to guess after. If someone sees these aren't reasonable numbers, ++ * please fix this. ++ * The area from which the dot11 values above are read contains: ++ * 04 01 01 01 00 05 01 06 00 02 01 02 ++ * the 8 dot11 reads above take care of 8 of them, but which 8... ++ */ ++ pEle += 4; ++ } ++ ++ adev->cfgopt_antennas.type = pEle[0]; ++ adev->cfgopt_antennas.len = pEle[1]; ++ printk("AntennaID:%02X Len:%02X Data:", ++ adev->cfgopt_antennas.type, adev->cfgopt_antennas.len); ++ for (i = 0; i < pEle[1]; i++) { ++ adev->cfgopt_antennas.list[i] = pEle[i+2]; ++ printk("%02X ", pEle[i+2]); ++ } ++ printk("\n"); ++ ++ pEle += pEle[1] + 2; ++ adev->cfgopt_power_levels.type = pEle[0]; ++ adev->cfgopt_power_levels.len = pEle[1]; ++ printk("PowerLevelID:%02X Len:%02X Data:", ++ adev->cfgopt_power_levels.type, adev->cfgopt_power_levels.len); ++ for (i = 0; i < pEle[1]; i++) { ++ adev->cfgopt_power_levels.list[i] = le16_to_cpu(*(u16 *)&pEle[i*2+2]); ++ printk("%04X ", adev->cfgopt_power_levels.list[i]); ++ } ++ printk("\n"); ++ ++ pEle += pEle[1]*2 + 2; ++ adev->cfgopt_data_rates.type = pEle[0]; ++ adev->cfgopt_data_rates.len = pEle[1]; ++ printk("DataRatesID:%02X Len:%02X Data:", ++ adev->cfgopt_data_rates.type, adev->cfgopt_data_rates.len); ++ for (i = 0; i < pEle[1]; i++) { ++ adev->cfgopt_data_rates.list[i] = pEle[i+2]; ++ printk("%02X ", pEle[i+2]); ++ } ++ printk("\n"); ++ ++ pEle += pEle[1] + 2; ++ adev->cfgopt_domains.type = pEle[0]; ++ adev->cfgopt_domains.len = pEle[1]; ++ if (IS_MEM(adev) && IS_ACX100(adev)) ++ { ++ /* ++ * For iPaq hx4700 Generic Slave F/W 1.10.7.K. ++ * There's an extra byte between this structure and the next ++ * that is not accounted for with this structure's length. It's ++ * most likely a bug in the firmware, but we can fix it here ++ * by bumping the length of this field by 1. ++ */ ++ adev->cfgopt_domains.len++; ++ } ++ printk("DomainID:%02X Len:%02X Data:", ++ adev->cfgopt_domains.type, adev->cfgopt_domains.len); ++ for (i = 0; i < adev->cfgopt_domains.len; i++) { ++ adev->cfgopt_domains.list[i] = pEle[i+2]; ++ printk("%02X ", pEle[i+2]); ++ } ++ printk("\n"); ++ ++ pEle += adev->cfgopt_domains.len + 2; ++ ++ adev->cfgopt_product_id.type = pEle[0]; ++ adev->cfgopt_product_id.len = pEle[1]; ++ for (i = 0; i < pEle[1]; i++) { ++ adev->cfgopt_product_id.list[i] = pEle[i+2]; ++ } ++ printk("ProductID:%02X Len:%02X Data:%.*s\n", ++ adev->cfgopt_product_id.type, adev->cfgopt_product_id.len, ++ adev->cfgopt_product_id.len, (char *)adev->cfgopt_product_id.list); ++ ++ pEle += pEle[1] + 2; ++ adev->cfgopt_manufacturer.type = pEle[0]; ++ adev->cfgopt_manufacturer.len = pEle[1]; ++ for (i = 0; i < pEle[1]; i++) { ++ adev->cfgopt_manufacturer.list[i] = pEle[i+2]; ++ } ++ printk("ManufacturerID:%02X Len:%02X Data:%.*s\n", ++ adev->cfgopt_manufacturer.type, adev->cfgopt_manufacturer.len, ++ adev->cfgopt_manufacturer.len, (char *)adev->cfgopt_manufacturer.list); ++/* ++ printk("EEPROM part:\n"); ++ for (i=0; i<58; i++) { ++ printk("%02X =======> 0x%02X\n", ++ i, (u8 *)adev->cfgopt_NVSv[i-2]); ++ } ++*/ ++} ++ ++ ++/*********************************************************************** ++*/ ++static int __init ++acx_e_init_module(void) ++{ ++ int r1,r2,r3,r4; ++ ++ acx_struct_size_check(); ++ ++ printk("acx: this driver is still EXPERIMENTAL\n" ++ "acx: reading README file and/or Craig's HOWTO is " ++ "recommended, visit http://acx100.sf.net in case " ++ "of further questions/discussion\n"); ++ ++#if defined(CONFIG_ACX_PCI) ++ r1 = acxpci_e_init_module(); ++#else ++ r1 = -EINVAL; ++#endif ++#if defined(CONFIG_ACX_MEM) ++ r2 = acxmem_e_init_module(); ++#else ++ r2 = -EINVAL; ++#endif ++#if defined(CONFIG_ACX_USB) ++ r3 = acxusb_e_init_module(); ++#else ++ r3 = -EINVAL; ++#endif ++#if defined(CONFIG_ACX_CS) ++ r4 = acx_cs_init(); ++#else ++ r4 = -EINVAL; ++#endif ++ if (r2 && r1 && r3 && r4) { /* all failed! */ ++ if (r3 || r1) ++ return r3 ? r3 : r1; ++ else ++ return r2; ++ } ++ /* return success if at least one succeeded */ ++ return 0; ++ ++} ++ ++static void __exit ++acx_e_cleanup_module(void) ++{ ++#if defined(CONFIG_ACX_PCI) ++ acxpci_e_cleanup_module(); ++#endif ++#if defined(CONFIG_ACX_MEM) ++ acxmem_e_cleanup_module(); ++#endif ++#if defined(CONFIG_ACX_USB) ++ acxusb_e_cleanup_module(); ++#endif ++#if defined(CONFIG_ACX_CS) ++ acx_cs_cleanup(); ++#endif ++} ++ ++module_init(acx_e_init_module) ++module_exit(acx_e_cleanup_module) +Index: linux-2.6.23/drivers/net/wireless/acx/conv.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/conv.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,504 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++#include <linux/version.h> ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) ++#include <linux/config.h> ++#endif ++#include <linux/skbuff.h> ++#include <linux/if_arp.h> ++#include <linux/etherdevice.h> ++#include <linux/wireless.h> ++#include <net/iw_handler.h> ++ ++#include "acx.h" ++ ++ ++/*********************************************************************** ++** proto_is_stt ++** ++** Searches the 802.1h Selective Translation Table for a given ++** protocol. ++** ++** prottype - protocol number (in host order) to search for. ++** ++** Returns: ++** 1 - if the table is empty or a match is found. ++** 0 - if the table is non-empty and a match is not found. ++** ++** Based largely on p80211conv.c of the linux-wlan-ng project ++*/ ++static inline int ++proto_is_stt(unsigned int proto) ++{ ++ /* Always return found for now. This is the behavior used by the */ ++ /* Zoom Win95 driver when 802.1h mode is selected */ ++ /* TODO: If necessary, add an actual search we'll probably ++ need this to match the CMAC's way of doing things. ++ Need to do some testing to confirm. ++ */ ++ ++ if (proto == 0x80f3) /* APPLETALK */ ++ return 1; ++ ++ return 0; ++/* return ((prottype == ETH_P_AARP) || (prottype == ETH_P_IPX)); */ ++} ++ ++/* Helpers */ ++ ++static inline void ++store_llc_snap(struct wlan_llc *llc) ++{ ++ llc->dsap = 0xaa; /* SNAP, see IEEE 802 */ ++ llc->ssap = 0xaa; ++ llc->ctl = 0x03; ++} ++static inline int ++llc_is_snap(const struct wlan_llc *llc) ++{ ++ return (llc->dsap == 0xaa) ++ && (llc->ssap == 0xaa) ++ && (llc->ctl == 0x03); ++} ++static inline void ++store_oui_rfc1042(struct wlan_snap *snap) ++{ ++ snap->oui[0] = 0; ++ snap->oui[1] = 0; ++ snap->oui[2] = 0; ++} ++static inline int ++oui_is_rfc1042(const struct wlan_snap *snap) ++{ ++ return (snap->oui[0] == 0) ++ && (snap->oui[1] == 0) ++ && (snap->oui[2] == 0); ++} ++static inline void ++store_oui_8021h(struct wlan_snap *snap) ++{ ++ snap->oui[0] = 0; ++ snap->oui[1] = 0; ++ snap->oui[2] = 0xf8; ++} ++static inline int ++oui_is_8021h(const struct wlan_snap *snap) ++{ ++ return (snap->oui[0] == 0) ++ && (snap->oui[1] == 0) ++ && (snap->oui[2] == 0xf8); ++} ++ ++ ++/*********************************************************************** ++** acx_ether_to_txbuf ++** ++** Uses the contents of the ether frame to build the elements of ++** the 802.11 frame. ++** ++** We don't actually set up the frame header here. That's the ++** MAC's job. We're only handling conversion of DIXII or 802.3+LLC ++** frames to something that works with 802.11. ++** ++** Based largely on p80211conv.c of the linux-wlan-ng project ++*/ ++int ++acx_ether_to_txbuf(acx_device_t *adev, void *txbuf, const struct sk_buff *skb) ++{ ++ struct wlan_hdr_a3 *w_hdr; ++ struct wlan_ethhdr *e_hdr; ++ struct wlan_llc *e_llc; ++ struct wlan_snap *e_snap; ++ const u8 *a1, *a3; ++ int header_len, payload_len = -1; ++ /* protocol type or data length, depending on whether ++ * DIX or 802.3 ethernet format */ ++ u16 proto; ++ u16 fc; ++ ++ FN_ENTER; ++ ++ if (unlikely(!skb->len)) { ++ log(L_DEBUG, "zero-length skb!\n"); ++ goto end; ++ } ++ ++ w_hdr = (struct wlan_hdr_a3*)txbuf; ++ ++ switch (adev->mode) { ++ case ACX_MODE_MONITOR: ++ /* NB: one day we might want to play with DESC_CTL2_FCS ++ ** Will need to stop doing "- WLAN_FCS_LEN" here then */ ++ if (unlikely(skb->len >= WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_FCS_LEN)) { ++ printk("%s: can't tx oversized frame (%d bytes)\n", ++ adev->ndev->name, skb->len); ++ goto end; ++ } ++ memcpy(w_hdr, skb->data, skb->len); ++ payload_len = skb->len; ++ goto end; ++ } ++ ++ /* step 1: classify ether frame, DIX or 802.3? */ ++ e_hdr = (wlan_ethhdr_t *)skb->data; ++ proto = ntohs(e_hdr->type); ++ if (proto <= 1500) { ++ log(L_DEBUG, "tx: 802.3 len: %d\n", skb->len); ++ /* codes <= 1500 reserved for 802.3 lengths */ ++ /* it's 802.3, pass ether payload unchanged, */ ++ /* trim off ethernet header and copy payload to txdesc */ ++ header_len = WLAN_HDR_A3_LEN; ++ } else { ++ /* it's DIXII, time for some conversion */ ++ /* Create 802.11 packet. Header also contains llc and snap. */ ++ ++ log(L_DEBUG, "tx: DIXII len: %d\n", skb->len); ++ ++ /* size of header is 802.11 header + llc + snap */ ++ header_len = WLAN_HDR_A3_LEN + sizeof(wlan_llc_t) + sizeof(wlan_snap_t); ++ /* llc is located behind the 802.11 header */ ++ e_llc = (wlan_llc_t*)(w_hdr + 1); ++ /* snap is located behind the llc */ ++ e_snap = (wlan_snap_t*)(e_llc + 1); ++ ++ /* setup the LLC header */ ++ store_llc_snap(e_llc); ++ ++ /* setup the SNAP header */ ++ e_snap->type = htons(proto); ++ if (proto_is_stt(proto)) { ++ store_oui_8021h(e_snap); ++ } else { ++ store_oui_rfc1042(e_snap); ++ } ++ } ++ /* trim off ethernet header and copy payload to txbuf */ ++ payload_len = skb->len - sizeof(wlan_ethhdr_t); ++ /* TODO: can we just let acx DMA payload from skb instead? */ ++ memcpy((u8*)txbuf + header_len, skb->data + sizeof(wlan_ethhdr_t), payload_len); ++ payload_len += header_len; ++ ++ /* Set up the 802.11 header */ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi); ++ a1 = e_hdr->daddr; ++ a3 = adev->bssid; ++ break; ++ case ACX_MODE_2_STA: ++ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi | WF_FC_TODSi); ++ a1 = adev->bssid; ++ a3 = e_hdr->daddr; ++ break; ++ case ACX_MODE_3_AP: ++ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi | WF_FC_FROMDSi); ++ a1 = e_hdr->daddr; ++ a3 = e_hdr->saddr; ++ break; ++ default: ++ printk("%s: error - converting eth to wlan in unknown mode\n", ++ adev->ndev->name); ++ payload_len = -1; ++ goto end; ++ } ++ if (adev->wep_enabled) ++ SET_BIT(fc, WF_FC_ISWEPi); ++ ++ w_hdr->fc = fc; ++ w_hdr->dur = 0; ++ MAC_COPY(w_hdr->a1, a1); ++ MAC_COPY(w_hdr->a2, adev->dev_addr); ++ MAC_COPY(w_hdr->a3, a3); ++ w_hdr->seq = 0; ++ ++#ifdef DEBUG_CONVERT ++ if (acx_debug & L_DATA) { ++ printk("original eth frame [%d]: ", skb->len); ++ acx_dump_bytes(skb->data, skb->len); ++ printk("802.11 frame [%d]: ", payload_len); ++ acx_dump_bytes(w_hdr, payload_len); ++ } ++#endif ++ ++end: ++ FN_EXIT1(payload_len); ++ return payload_len; ++} ++ ++ ++/*********************************************************************** ++** acx_rxbuf_to_ether ++** ++** Uses the contents of a received 802.11 frame to build an ether ++** frame. ++** ++** This function extracts the src and dest address from the 802.11 ++** frame to use in the construction of the eth frame. ++** ++** Based largely on p80211conv.c of the linux-wlan-ng project ++*/ ++struct sk_buff* ++acx_rxbuf_to_ether(acx_device_t *adev, rxbuffer_t *rxbuf) ++{ ++ struct wlan_hdr *w_hdr; ++ struct wlan_ethhdr *e_hdr; ++ struct wlan_llc *e_llc; ++ struct wlan_snap *e_snap; ++ struct sk_buff *skb; ++ const u8 *daddr; ++ const u8 *saddr; ++ const u8 *e_payload; ++ int buflen, payload_length; ++ unsigned int payload_offset, mtu; ++ u16 fc; ++ ++ FN_ENTER; ++ ++ /* This looks complex because it must handle possible ++ ** phy header in rxbuff */ ++ w_hdr = acx_get_wlan_hdr(adev, rxbuf); ++ payload_offset = WLAN_HDR_A3_LEN; /* it is relative to w_hdr */ ++ payload_length = RXBUF_BYTES_USED(rxbuf) /* entire rxbuff... */ ++ - ((u8*)w_hdr - (u8*)rxbuf) /* minus space before 802.11 frame */ ++ - WLAN_HDR_A3_LEN; /* minus 802.11 header */ ++ ++ /* setup some vars for convenience */ ++ fc = w_hdr->fc; ++ switch (WF_FC_FROMTODSi & fc) { ++ case 0: ++ daddr = w_hdr->a1; ++ saddr = w_hdr->a2; ++ break; ++ case WF_FC_FROMDSi: ++ daddr = w_hdr->a1; ++ saddr = w_hdr->a3; ++ break; ++ case WF_FC_TODSi: ++ daddr = w_hdr->a3; ++ saddr = w_hdr->a2; ++ break; ++ default: /* WF_FC_FROMTODSi */ ++ payload_offset += (WLAN_HDR_A4_LEN - WLAN_HDR_A3_LEN); ++ payload_length -= (WLAN_HDR_A4_LEN - WLAN_HDR_A3_LEN); ++ daddr = w_hdr->a3; ++ saddr = w_hdr->a4; ++ } ++ ++ if ((WF_FC_ISWEPi & fc) && IS_ACX100(adev)) { ++ /* chop off the IV+ICV WEP header and footer */ ++ log(L_DATA|L_DEBUG, "rx: WEP packet, " ++ "chopping off IV and ICV\n"); ++ payload_offset += WLAN_WEP_IV_LEN; ++ payload_length -= WLAN_WEP_IV_LEN + WLAN_WEP_ICV_LEN; ++ } ++ ++ if (unlikely(payload_length < 0)) { ++ printk("%s: rx frame too short, ignored\n", adev->ndev->name); ++ goto ret_null; ++ } ++ ++ e_hdr = (wlan_ethhdr_t*) ((u8*) w_hdr + payload_offset); ++ e_llc = (wlan_llc_t*) e_hdr; ++ e_snap = (wlan_snap_t*) (e_llc + 1); ++ mtu = adev->ndev->mtu; ++ e_payload = (u8*) (e_snap + 1); ++ ++ log(L_DATA, "rx: payload_offset %d, payload_length %d\n", ++ payload_offset, payload_length); ++ log(L_XFER|L_DATA, ++ "rx: frame info: llc=%02X%02X%02X " ++ "snap.oui=%02X%02X%02X snap.type=%04X\n", ++ e_llc->dsap, e_llc->ssap, e_llc->ctl, ++ e_snap->oui[0], e_snap->oui[1], e_snap->oui[2], ++ ntohs(e_snap->type)); ++ ++ /* Test for the various encodings */ ++ if ((payload_length >= sizeof(wlan_ethhdr_t)) ++ && ((e_llc->dsap != 0xaa) || (e_llc->ssap != 0xaa)) ++ && ( (mac_is_equal(daddr, e_hdr->daddr)) ++ || (mac_is_equal(saddr, e_hdr->saddr)) ++ ) ++ ) { ++ /* 802.3 Encapsulated: */ ++ /* wlan frame body contains complete eth frame (header+body) */ ++ log(L_DEBUG|L_DATA, "rx: 802.3 ENCAP len=%d\n", payload_length); ++ ++ if (unlikely(payload_length > (mtu + ETH_HLEN))) { ++ printk("%s: rx: ENCAP frame too large (%d > %d)\n", ++ adev->ndev->name, ++ payload_length, mtu + ETH_HLEN); ++ goto ret_null; ++ } ++ ++ /* allocate space and setup host buffer */ ++ buflen = payload_length; ++ /* Attempt to align IP header (14 bytes eth header + 2 = 16) */ ++ skb = dev_alloc_skb(buflen + 2); ++ if (unlikely(!skb)) ++ goto no_skb; ++ skb_reserve(skb, 2); ++ skb_put(skb, buflen); /* make room */ ++ ++ /* now copy the data from the 80211 frame */ ++ memcpy(skb->data, e_hdr, payload_length); ++ ++ } else if ( (payload_length >= sizeof(wlan_llc_t)+sizeof(wlan_snap_t)) ++ && llc_is_snap(e_llc) ) { ++ /* wlan frame body contains: AA AA 03 ... (it's a SNAP) */ ++ ++ if ( !oui_is_rfc1042(e_snap) ++ || (proto_is_stt(ieee2host16(e_snap->type)) /* && (ethconv == WLAN_ETHCONV_8021h) */)) { ++ log(L_DEBUG|L_DATA, "rx: SNAP+RFC1042 len=%d\n", payload_length); ++ /* wlan frame body contains: AA AA 03 !(00 00 00) ... -or- */ ++ /* wlan frame body contains: AA AA 03 00 00 00 0x80f3 ... */ ++ /* build eth hdr, type = len, copy AA AA 03... as eth body */ ++ /* it's a SNAP + RFC1042 frame && protocol is in STT */ ++ ++ if (unlikely(payload_length > mtu)) { ++ printk("%s: rx: SNAP frame too large (%d > %d)\n", ++ adev->ndev->name, ++ payload_length, mtu); ++ goto ret_null; ++ } ++ ++ /* allocate space and setup host buffer */ ++ buflen = payload_length + ETH_HLEN; ++ skb = dev_alloc_skb(buflen + 2); ++ if (unlikely(!skb)) ++ goto no_skb; ++ skb_reserve(skb, 2); ++ skb_put(skb, buflen); /* make room */ ++ ++ /* create 802.3 header */ ++ e_hdr = (wlan_ethhdr_t*) skb->data; ++ MAC_COPY(e_hdr->daddr, daddr); ++ MAC_COPY(e_hdr->saddr, saddr); ++ e_hdr->type = htons(payload_length); ++ ++ /* Now copy the data from the 80211 frame. ++ Make room in front for the eth header, and keep the ++ llc and snap from the 802.11 payload */ ++ memcpy(skb->data + ETH_HLEN, ++ e_llc, payload_length); ++ ++ } else { ++ /* wlan frame body contains: AA AA 03 00 00 00 [type] [tail] */ ++ /* build eth hdr, type=[type], copy [tail] as eth body */ ++ log(L_DEBUG|L_DATA, "rx: 802.1h/RFC1042 len=%d\n", ++ payload_length); ++ /* it's an 802.1h frame (an RFC1042 && protocol is not in STT) */ ++ /* build a DIXII + RFC894 */ ++ ++ payload_length -= sizeof(wlan_llc_t) + sizeof(wlan_snap_t); ++ if (unlikely(payload_length > mtu)) { ++ printk("%s: rx: DIXII frame too large (%d > %d)\n", ++ adev->ndev->name, ++ payload_length, mtu); ++ goto ret_null; ++ } ++ ++ /* allocate space and setup host buffer */ ++ buflen = payload_length + ETH_HLEN; ++ skb = dev_alloc_skb(buflen + 2); ++ if (unlikely(!skb)) ++ goto no_skb; ++ skb_reserve(skb, 2); ++ skb_put(skb, buflen); /* make room */ ++ ++ /* create 802.3 header */ ++ e_hdr = (wlan_ethhdr_t *) skb->data; ++ MAC_COPY(e_hdr->daddr, daddr); ++ MAC_COPY(e_hdr->saddr, saddr); ++ e_hdr->type = e_snap->type; ++ ++ /* Now copy the data from the 80211 frame. ++ Make room in front for the eth header, and cut off the ++ llc and snap from the 802.11 payload */ ++ memcpy(skb->data + ETH_HLEN, ++ e_payload, payload_length); ++ } ++ ++ } else { ++ log(L_DEBUG|L_DATA, "rx: NON-ENCAP len=%d\n", payload_length); ++ /* build eth hdr, type=len, copy wlan body as eth body */ ++ /* any NON-ENCAP */ ++ /* it's a generic 80211+LLC or IPX 'Raw 802.3' */ ++ /* build an 802.3 frame */ ++ ++ if (unlikely(payload_length > mtu)) { ++ printk("%s: rx: OTHER frame too large (%d > %d)\n", ++ adev->ndev->name, payload_length, mtu); ++ goto ret_null; ++ } ++ ++ /* allocate space and setup host buffer */ ++ buflen = payload_length + ETH_HLEN; ++ skb = dev_alloc_skb(buflen + 2); ++ if (unlikely(!skb)) ++ goto no_skb; ++ skb_reserve(skb, 2); ++ skb_put(skb, buflen); /* make room */ ++ ++ /* set up the 802.3 header */ ++ e_hdr = (wlan_ethhdr_t *) skb->data; ++ MAC_COPY(e_hdr->daddr, daddr); ++ MAC_COPY(e_hdr->saddr, saddr); ++ e_hdr->type = htons(payload_length); ++ ++ /* now copy the data from the 80211 frame */ ++ memcpy(skb->data + ETH_HLEN, e_llc, payload_length); ++ } ++ ++ skb->dev = adev->ndev; ++ skb->protocol = eth_type_trans(skb, adev->ndev); ++ ++#ifdef DEBUG_CONVERT ++ if (acx_debug & L_DATA) { ++ int len = RXBUF_BYTES_RCVD(adev, rxbuf); ++ printk("p802.11 frame [%d]: ", len); ++ acx_dump_bytes(w_hdr, len); ++ printk("eth frame [%d]: ", skb->len); ++ acx_dump_bytes(skb->data, skb->len); ++ } ++#endif ++ ++ FN_EXIT0; ++ return skb; ++ ++no_skb: ++ printk("%s: rx: no memory for skb (%d bytes)\n", ++ adev->ndev->name, buflen + 2); ++ret_null: ++ FN_EXIT1((int)NULL); ++ return NULL; ++} +Index: linux-2.6.23/drivers/net/wireless/acx/cs.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/cs.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,5703 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++** ++** Slave memory interface support: ++** ++** Todd Blumer - SDG Systems ++** Bill Reese - HP ++** Eric McCorkle - Shadowsun ++** ++** CF support, (c) Fabrice Crohas, Paul Sokolovsky ++*/ ++#define ACX_MEM 1 ++ ++/* ++ * non-zero makes it dump the ACX memory to the console then ++ * panic when you cat /proc/driver/acx_wlan0_diag ++ */ ++#define DUMP_MEM_DEFINED 1 ++ ++#define DUMP_MEM_DURING_DIAG 0 ++#define DUMP_IF_SLOW 0 ++ ++#define PATCH_AROUND_BAD_SPOTS 1 ++#define HX4700_FIRMWARE_CHECKSUM 0x0036862e ++#define HX4700_ALTERNATE_FIRMWARE_CHECKSUM 0x00368a75 ++ ++#include <linux/version.h> ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) ++#include <linux/config.h> ++#endif ++ ++/* Linux 2.6.18+ uses <linux/utsrelease.h> */ ++#ifndef UTS_RELEASE ++#include <linux/utsrelease.h> ++#endif ++ ++#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/sched.h> ++#include <linux/types.h> ++#include <linux/skbuff.h> ++#include <linux/slab.h> ++#include <linux/if_arp.h> ++#include <linux/irq.h> ++#include <linux/rtnetlink.h> ++#include <linux/wireless.h> ++#include <net/iw_handler.h> ++#include <linux/netdevice.h> ++#include <linux/ioport.h> ++#include <linux/pci.h> ++#include <linux/platform_device.h> ++#include <linux/pm.h> ++#include <linux/vmalloc.h> ++#include <linux/delay.h> ++#include <linux/workqueue.h> ++#include <linux/inetdevice.h> ++ ++#define PCMCIA_DEBUG 1 ++ ++/* ++ All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If ++ you do not define PCMCIA_DEBUG at all, all the debug code will be ++ left out. If you compile with PCMCIA_DEBUG=0, the debug code will ++ be present but disabled -- but it can then be enabled for specific ++ modules at load time with a 'pc_debug=#' option to insmod. ++ ++*/ ++#include <pcmcia/cs_types.h> ++#include <pcmcia/cs.h> ++#include <pcmcia/cistpl.h> ++#include <pcmcia/cisreg.h> ++#include <pcmcia/ds.h> ++#include "acx.h" ++#include "acx_hw.h" ++ ++#ifdef PCMCIA_DEBUG ++static int pc_debug = PCMCIA_DEBUG; ++module_param(pc_debug, int, 0); ++static char *version = "$Revision: 1.10 $"; ++#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args); ++#else ++#define DEBUG(n, args...) ++#endif ++ ++ ++static win_req_t memwin; ++ ++typedef struct local_info_t { ++ dev_node_t node; ++ struct net_device *ndev; ++} local_info_t; ++ ++static struct net_device *resume_ndev; ++ ++ ++/*********************************************************************** ++*/ ++ ++#define CARD_EEPROM_ID_SIZE 6 ++ ++#include <asm/io.h> ++ ++#define REG_ACX_VENDOR_ID 0x900 ++/* ++ * This is the vendor id on the HX4700, anyway ++ */ ++#define ACX_VENDOR_ID 0x8400104c ++ ++typedef enum { ++ ACX_SOFT_RESET = 0, ++ ++ ACX_SLV_REG_ADDR, ++ ACX_SLV_REG_DATA, ++ ACX_SLV_REG_ADATA, ++ ++ ACX_SLV_MEM_CP, ++ ACX_SLV_MEM_ADDR, ++ ACX_SLV_MEM_DATA, ++ ACX_SLV_MEM_CTL, ++} acxreg_t; ++ ++/*********************************************************************** ++*/ ++static void acxmem_i_tx_timeout(struct net_device *ndev); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id); ++#else ++static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id, struct pt_regs *regs); ++#endif ++static void acxmem_i_set_multicast_list(struct net_device *ndev); ++ ++static int acxmem_e_open(struct net_device *ndev); ++static int acxmem_e_close(struct net_device *ndev); ++static void acxmem_s_up(struct net_device *ndev); ++static void acxmem_s_down(struct net_device *ndev); ++ ++static void dump_acxmem (acx_device_t *adev, u32 start, int length); ++static int acxmem_complete_hw_reset (acx_device_t *adev); ++static void acxmem_s_delete_dma_regions(acx_device_t *adev); ++ ++static int ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++acxmem_e_suspend( struct net_device *ndev, pm_message_t state); ++#else ++acxmem_e_suspend( struct net_device *ndev, u32 state); ++#endif ++static void ++fw_resumer(struct work_struct *notused); ++//fw_resumer( void *data ); ++ ++static int acx_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) ++{ ++ struct net_device *ndev = ptr; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ /* ++ * Upper level ioctl() handlers send a NETDEV_CHANGEADDR if the MAC address changes. ++ */ ++ ++ if (NETDEV_CHANGEADDR == event) { ++ /* ++ * the upper layers put the new MAC address in ndev->dev_addr; we just copy ++ * it over and update the ACX with it. ++ */ ++ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr); ++ adev->set_mask |= GETSET_STATION_ID; ++ acx_s_update_card_settings (adev); ++ } ++ ++ return 0; ++} ++ ++static struct notifier_block acx_netdev_notifier = { ++ .notifier_call = acx_netdev_event, ++}; ++ ++/*********************************************************************** ++** Register access ++*/ ++ ++/* Pick one */ ++/* #define INLINE_IO static */ ++#define INLINE_IO static inline ++ ++INLINE_IO u32 ++read_id_register (acx_device_t *adev) ++{ ++ writel (0x24, &adev->iobase[ACX_SLV_REG_ADDR]); ++ return readl (&adev->iobase[ACX_SLV_REG_DATA]); ++} ++ ++INLINE_IO u32 ++read_reg32(acx_device_t *adev, unsigned int offset) ++{ ++ u32 val; ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ return readl(((u8*)adev->iobase) + addr); ++ } ++ ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ val = readl( &adev->iobase[ACX_SLV_REG_DATA] ); ++ ++ return val; ++} ++ ++INLINE_IO u16 ++read_reg16(acx_device_t *adev, unsigned int offset) ++{ ++ u16 lo; ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ return readw(((u8 *) adev->iobase) + addr); ++ } ++ ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ lo = readw( (u16 *)&adev->iobase[ACX_SLV_REG_DATA] ); ++ ++ return lo; ++} ++ ++INLINE_IO u8 ++read_reg8(acx_device_t *adev, unsigned int offset) ++{ ++ u8 lo; ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) ++ return readb(((u8 *)adev->iobase) + addr); ++ ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ lo = readw( (u8 *)&adev->iobase[ACX_SLV_REG_DATA] ); ++ ++ return (u8)lo; ++} ++ ++INLINE_IO void ++write_reg32(acx_device_t *adev, unsigned int offset, u32 val) ++{ ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ writel(val, ((u8*)adev->iobase) + addr); ++ return; ++ } ++ ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ writel( val, &adev->iobase[ACX_SLV_REG_DATA] ); ++} ++ ++INLINE_IO void ++write_reg16(acx_device_t *adev, unsigned int offset, u16 val) ++{ ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ writew(val, ((u8 *)adev->iobase) + addr); ++ return; ++ } ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ writew( val, (u16 *) &adev->iobase[ACX_SLV_REG_DATA] ); ++} ++ ++INLINE_IO void ++write_reg8(acx_device_t *adev, unsigned int offset, u8 val) ++{ ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ writeb(val, ((u8 *) adev->iobase) + addr); ++ return; ++ } ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ writeb( val, (u8 *)&adev->iobase[ACX_SLV_REG_DATA] ); ++} ++ ++/* Handle PCI posting properly: ++ * Make sure that writes reach the adapter in case they require to be executed ++ * *before* the next write, by reading a random (and safely accessible) register. ++ * This call has to be made if there is no read following (which would flush the data ++ * to the adapter), yet the written data has to reach the adapter immediately. */ ++INLINE_IO void ++write_flush(acx_device_t *adev) ++{ ++ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */ ++ /* faster version (accesses the first register, IO_ACX_SOFT_RESET, ++ * which should also be safe): */ ++ (void) readl(adev->iobase); ++} ++ ++INLINE_IO void ++set_regbits (acx_device_t *adev, unsigned int offset, u32 bits) { ++ u32 tmp; ++ ++ tmp = read_reg32 (adev, offset); ++ tmp = tmp | bits; ++ write_reg32 (adev, offset, tmp); ++ write_flush (adev); ++} ++ ++INLINE_IO void ++clear_regbits (acx_device_t *adev, unsigned int offset, u32 bits) { ++ u32 tmp; ++ ++ tmp = read_reg32 (adev, offset); ++ tmp = tmp & ~bits; ++ write_reg32 (adev, offset, tmp); ++ write_flush (adev); ++} ++ ++/* ++ * Copy from PXA memory to the ACX memory. This assumes both the PXA and ACX ++ * addresses are 32 bit aligned. Count is in bytes. ++ */ ++INLINE_IO void ++write_slavemem32 (acx_device_t *adev, u32 slave_address, u32 val) ++{ ++ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0); ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address); ++ udelay (10); ++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, val); ++} ++ ++INLINE_IO u32 ++read_slavemem32 (acx_device_t *adev, u32 slave_address) ++{ ++ u32 val; ++ ++ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0); ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address); ++ udelay (10); ++ val = read_reg32 (adev, IO_ACX_SLV_MEM_DATA); ++ ++ return val; ++} ++ ++INLINE_IO void ++write_slavemem8 (acx_device_t *adev, u32 slave_address, u8 val) ++{ ++ u32 data; ++ u32 base; ++ int offset; ++ ++ /* ++ * Get the word containing the target address and the byte offset in that word. ++ */ ++ base = slave_address & ~3; ++ offset = (slave_address & 3) * 8; ++ ++ data = read_slavemem32 (adev, base); ++ data &= ~(0xff << offset); ++ data |= val << offset; ++ write_slavemem32 (adev, base, data); ++} ++ ++INLINE_IO u8 ++read_slavemem8 (acx_device_t *adev, u32 slave_address) ++{ ++ u8 val; ++ u32 base; ++ u32 data; ++ int offset; ++ ++ base = slave_address & ~3; ++ offset = (slave_address & 3) * 8; ++ ++ data = read_slavemem32 (adev, base); ++ ++ val = (data >> offset) & 0xff; ++ ++ return val; ++} ++ ++/* ++ * doesn't split across word boundaries ++ */ ++INLINE_IO void ++write_slavemem16 (acx_device_t *adev, u32 slave_address, u16 val) ++{ ++ u32 data; ++ u32 base; ++ int offset; ++ ++ /* ++ * Get the word containing the target address and the byte offset in that word. ++ */ ++ base = slave_address & ~3; ++ offset = (slave_address & 3) * 8; ++ ++ data = read_slavemem32 (adev, base); ++ data &= ~(0xffff << offset); ++ data |= val << offset; ++ write_slavemem32 (adev, base, data); ++} ++ ++/* ++ * doesn't split across word boundaries ++ */ ++INLINE_IO u16 ++read_slavemem16 (acx_device_t *adev, u32 slave_address) ++{ ++ u16 val; ++ u32 base; ++ u32 data; ++ int offset; ++ ++ base = slave_address & ~3; ++ offset = (slave_address & 3) * 8; ++ ++ data = read_slavemem32 (adev, base); ++ ++ val = (data >> offset) & 0xffff; ++ ++ return val; ++} ++ ++/* ++ * Copy from slave memory ++ * ++ * TODO - rewrite using address autoincrement, handle partial words ++ */ ++void ++copy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count) { ++ u32 tmp = 0; ++ u8 *ptmp = (u8 *) &tmp; ++ ++ /* ++ * Right now I'm making the assumption that the destination is aligned, but ++ * I'd better check. ++ */ ++ if ((u32) destination & 3) { ++ printk ("acx copy_from_slavemem: warning! destination not word-aligned!\n"); ++ } ++ ++ while (count >= 4) { ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source); ++ udelay (10); ++ *((u32 *) destination) = read_reg32 (adev, IO_ACX_SLV_MEM_DATA); ++ count -= 4; ++ source += 4; ++ destination += 4; ++ } ++ ++ /* ++ * If the word reads above didn't satisfy the count, read one more word ++ * and transfer a byte at a time until the request is satisfied. ++ */ ++ if (count) { ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source); ++ udelay (10); ++ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA); ++ while (count--) { ++ *destination++ = *ptmp++; ++ } ++ } ++} ++ ++/* ++ * Copy to slave memory ++ * ++ * TODO - rewrite using autoincrement, handle partial words ++ */ ++void ++copy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count) ++{ ++ u32 tmp = 0; ++ u8* ptmp = (u8 *) &tmp; ++ static u8 src[512]; /* make static to avoid huge stack objects */ ++ ++ /* ++ * For now, make sure the source is word-aligned by copying it to a word-aligned ++ * buffer. Someday rewrite to avoid the extra copy. ++ */ ++ if (count > sizeof (src)) { ++ printk ("acx copy_to_slavemem: Warning! buffer overflow!\n"); ++ count = sizeof (src); ++ } ++ memcpy (src, source, count); ++ source = src; ++ ++ while (count >= 4) { ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination); ++ udelay (10); ++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, *((u32 *) source)); ++ count -= 4; ++ source += 4; ++ destination += 4; ++ } ++ ++ /* ++ * If there are leftovers read the next word from the acx and merge in ++ * what they want to write. ++ */ ++ if (count) { ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination); ++ udelay (10); ++ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA); ++ while (count--) { ++ *ptmp++ = *source++; ++ } ++ /* ++ * reset address in case we're currently in auto-increment mode ++ */ ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination); ++ udelay (10); ++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, tmp); ++ udelay (10); ++ } ++ ++} ++ ++/* ++ * Block copy to slave buffers using memory block chain mode. Copies to the ACX ++ * transmit buffer structure with minimal intervention on our part. ++ * Interrupts should be disabled when calling this. ++ */ ++void ++chaincopy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count) ++{ ++ u32 val; ++ u32 *data = (u32 *) source; ++ static u8 aligned_source[WLAN_A4FR_MAXLEN_WEP_FCS]; ++ ++ /* ++ * Warn if the pointers don't look right. Destination must fit in [23:5] with ++ * zero elsewhere and source should be 32 bit aligned. ++ * This should never happen since we're in control of both, but I want to know about ++ * it if it does. ++ */ ++ if ((destination & 0x00ffffe0) != destination) { ++ printk ("acx chaincopy: destination block 0x%04x not aligned!\n", destination); ++ } ++ if (count > sizeof aligned_source) { ++ printk( KERN_ERR "chaincopy_to_slavemem overflow!\n" ); ++ count = sizeof aligned_source; ++ } ++ if ((u32) source & 3) { ++ memcpy (aligned_source, source, count); ++ data = (u32 *) aligned_source; ++ } ++ ++ /* ++ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment ++ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word ++ */ ++ val = 2 << 16 | 1 << 2; ++ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]); ++ ++ /* ++ * SLV_MEM_CP[23:5] = start of 1st block ++ * SLV_MEM_CP[3:2] = offset to memblkptr = 0 ++ */ ++ val = destination & 0x00ffffe0; ++ writel (val, &adev->iobase[ACX_SLV_MEM_CP]); ++ ++ /* ++ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5] ++ */ ++ val = (destination & 0x00ffffe0) + (1<<2); ++ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]); ++ ++ /* ++ * Write the data to the slave data register, rounding up to the end ++ * of the word containing the last byte (hence the > 0) ++ */ ++ while (count > 0) { ++ writel (*data++, &adev->iobase[ACX_SLV_MEM_DATA]); ++ count -= 4; ++ } ++} ++ ++ ++/* ++ * Block copy from slave buffers using memory block chain mode. Copies from the ACX ++ * receive buffer structures with minimal intervention on our part. ++ * Interrupts should be disabled when calling this. ++ */ ++void ++chaincopy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count) ++{ ++ u32 val; ++ u32 *data = (u32 *) destination; ++ static u8 aligned_destination[WLAN_A4FR_MAXLEN_WEP_FCS]; ++ int saved_count = count; ++ ++ /* ++ * Warn if the pointers don't look right. Destination must fit in [23:5] with ++ * zero elsewhere and source should be 32 bit aligned. ++ * Turns out the network stack sends unaligned things, so fix them before ++ * copying to the ACX. ++ */ ++ if ((source & 0x00ffffe0) != source) { ++ printk ("acx chaincopy: source block 0x%04x not aligned!\n", source); ++ dump_acxmem (adev, 0, 0x10000); ++ } ++ if ((u32) destination & 3) { ++ //printk ("acx chaincopy: data destination not word aligned!\n"); ++ data = (u32 *) aligned_destination; ++ if (count > sizeof aligned_destination) { ++ printk( KERN_ERR "chaincopy_from_slavemem overflow!\n" ); ++ count = sizeof aligned_destination; ++ } ++ } ++ ++ /* ++ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment ++ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word ++ */ ++ val = (2 << 16) | (1 << 2); ++ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]); ++ ++ /* ++ * SLV_MEM_CP[23:5] = start of 1st block ++ * SLV_MEM_CP[3:2] = offset to memblkptr = 0 ++ */ ++ val = source & 0x00ffffe0; ++ writel (val, &adev->iobase[ACX_SLV_MEM_CP]); ++ ++ /* ++ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5] ++ */ ++ val = (source & 0x00ffffe0) + (1<<2); ++ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]); ++ ++ /* ++ * Read the data from the slave data register, rounding up to the end ++ * of the word containing the last byte (hence the > 0) ++ */ ++ while (count > 0) { ++ *data++ = readl (&adev->iobase[ACX_SLV_MEM_DATA]); ++ count -= 4; ++ } ++ ++ /* ++ * If the destination wasn't aligned, we would have saved it in ++ * the aligned buffer, so copy it where it should go. ++ */ ++ if ((u32) destination & 3) { ++ memcpy (destination, aligned_destination, saved_count); ++ } ++} ++ ++char ++printable (char c) ++{ ++ return ((c >= 20) && (c < 127)) ? c : '.'; ++} ++ ++#if DUMP_MEM_DEFINED > 0 ++static void ++dump_acxmem (acx_device_t *adev, u32 start, int length) ++{ ++ int i; ++ u8 buf[16]; ++ ++ while (length > 0) { ++ printk ("%04x ", start); ++ copy_from_slavemem (adev, buf, start, 16); ++ for (i = 0; (i < 16) && (i < length); i++) { ++ printk ("%02x ", buf[i]); ++ } ++ for (i = 0; (i < 16) && (i < length); i++) { ++ printk ("%c", printable (buf[i])); ++ } ++ printk ("\n"); ++ start += 16; ++ length -= 16; ++ } ++} ++#endif ++ ++static void ++enable_acx_irq(acx_device_t *adev); ++static void ++disable_acx_irq(acx_device_t *adev); ++ ++/* ++ * Return an acx pointer to the next transmit data block. ++ */ ++u32 ++allocate_acx_txbuf_space (acx_device_t *adev, int count) { ++ u32 block, next, last_block; ++ int blocks_needed; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&adev->txbuf_lock, flags); ++ /* ++ * Take 4 off the memory block size to account for the reserved word at the start of ++ * the block. ++ */ ++ blocks_needed = count / (adev->memblocksize - 4); ++ if (count % (adev->memblocksize - 4)) ++ blocks_needed++; ++ ++ if (blocks_needed <= adev->acx_txbuf_blocks_free) { ++ /* ++ * Take blocks at the head of the free list. ++ */ ++ last_block = block = adev->acx_txbuf_free; ++ ++ /* ++ * Follow block pointers through the requested number of blocks both to ++ * find the new head of the free list and to set the flags for the blocks ++ * appropriately. ++ */ ++ while (blocks_needed--) { ++ /* ++ * Keep track of the last block of the allocation ++ */ ++ last_block = adev->acx_txbuf_free; ++ ++ /* ++ * Make sure the end control flag is not set. ++ */ ++ next = read_slavemem32 (adev, adev->acx_txbuf_free) & 0x7ffff; ++ write_slavemem32 (adev, adev->acx_txbuf_free, next); ++ ++ /* ++ * Update the new head of the free list ++ */ ++ adev->acx_txbuf_free = next << 5; ++ adev->acx_txbuf_blocks_free--; ++ ++ } ++ ++ /* ++ * Flag the last block both by clearing out the next pointer ++ * and marking the control field. ++ */ ++ write_slavemem32 (adev, last_block, 0x02000000); ++ ++ /* ++ * If we're out of buffers make sure the free list pointer is NULL ++ */ ++ if (!adev->acx_txbuf_blocks_free) { ++ adev->acx_txbuf_free = 0; ++ } ++ } ++ else { ++ block = 0; ++ } ++ spin_unlock_irqrestore (&adev->txbuf_lock, flags); ++ return block; ++} ++ ++/* ++ * Return buffer space back to the pool by following the next pointers until we find ++ * the block marked as the end. Point the last block to the head of the free list, ++ * then update the head of the free list to point to the newly freed memory. ++ * This routine gets called in interrupt context, so it shouldn't block to protect ++ * the integrity of the linked list. The ISR already holds the lock. ++ */ ++void ++reclaim_acx_txbuf_space (acx_device_t *adev, u32 blockptr) { ++ u32 cur, last, next; ++ unsigned long flags; ++ ++ spin_lock_irqsave (&adev->txbuf_lock, flags); ++ if ((blockptr >= adev->acx_txbuf_start) && ++ (blockptr <= adev->acx_txbuf_start + ++ (adev->acx_txbuf_numblocks - 1) * adev->memblocksize)) { ++ cur = blockptr; ++ do { ++ last = cur; ++ next = read_slavemem32 (adev, cur); ++ ++ /* ++ * Advance to the next block in this allocation ++ */ ++ cur = (next & 0x7ffff) << 5; ++ ++ /* ++ * This block now counts as free. ++ */ ++ adev->acx_txbuf_blocks_free++; ++ } while (!(next & 0x02000000)); ++ ++ /* ++ * last now points to the last block of that allocation. Update the pointer ++ * in that block to point to the free list and reset the free list to the ++ * first block of the free call. If there were no free blocks, make sure ++ * the new end of the list marks itself as truly the end. ++ */ ++ if (adev->acx_txbuf_free) { ++ write_slavemem32 (adev, last, adev->acx_txbuf_free >> 5); ++ } ++ else { ++ write_slavemem32 (adev, last, 0x02000000); ++ } ++ adev->acx_txbuf_free = blockptr; ++ } ++ spin_unlock_irqrestore(&adev->txbuf_lock, flags); ++} ++ ++/* ++ * Initialize the pieces managing the transmit buffer pool on the ACX. The transmit ++ * buffer is a circular queue with one 32 bit word reserved at the beginning of each ++ * block. The upper 13 bits are a control field, of which only 0x02000000 has any ++ * meaning. The lower 19 bits are the address of the next block divided by 32. ++ */ ++void ++init_acx_txbuf (acx_device_t *adev) { ++ ++ /* ++ * acx100_s_init_memory_pools set up txbuf_start and txbuf_numblocks for us. ++ * All we need to do is reset the rest of the bookeeping. ++ */ ++ ++ adev->acx_txbuf_free = adev->acx_txbuf_start; ++ adev->acx_txbuf_blocks_free = adev->acx_txbuf_numblocks; ++ ++ /* ++ * Initialization leaves the last transmit pool block without a pointer back to ++ * the head of the list, but marked as the end of the list. That's how we want ++ * to see it, too, so leave it alone. This is only ever called after a firmware ++ * reset, so the ACX memory is in the state we want. ++ */ ++ ++} ++ ++INLINE_IO int ++adev_present(acx_device_t *adev) ++{ ++ /* fast version (accesses the first register, IO_ACX_SOFT_RESET, ++ * which should be safe): */ ++ return readl(adev->iobase) != 0xffffffff; ++} ++ ++/*********************************************************************** ++*/ ++static inline txdesc_t* ++get_txdesc(acx_device_t *adev, int index) ++{ ++ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size); ++} ++ ++static inline txdesc_t* ++advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc) ++{ ++ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size); ++} ++ ++static txhostdesc_t* ++get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ return &adev->txhostdesc_start[index*2]; ++} ++ ++static inline client_t* ++get_txc(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ return adev->txc[index]; ++} ++ ++static inline u16 ++get_txr(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ index /= adev->txdesc_size; ++ return adev->txr[index]; ++} ++ ++static inline void ++put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return; ++ } ++ adev->txc[index] = c; ++ adev->txr[index] = r111; ++} ++ ++ ++/*********************************************************************** ++** EEPROM and PHY read/write helpers ++*/ ++/*********************************************************************** ++** acxmem_read_eeprom_byte ++** ++** Function called to read an octet in the EEPROM. ++** ++** This function is used by acxmem_e_probe to check if the ++** connected card is a legal one or not. ++** ++** Arguments: ++** adev ptr to acx_device structure ++** addr address to read in the EEPROM ++** charbuf ptr to a char. This is where the read octet ++** will be stored ++*/ ++int ++acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf) ++{ ++ int result; ++ int count; ++ ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ /* scheduling away instead of CPU burning loop ++ * doesn't seem to work here at all: ++ * awful delay, sometimes also failure. ++ * Doesn't matter anyway (only small delay). */ ++ if (unlikely(!--count)) { ++ printk("%s: timeout waiting for EEPROM read\n", ++ adev->ndev->name); ++ result = NOT_OK; ++ goto fail; ++ } ++ cpu_relax(); ++ } ++ ++ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA); ++ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf); ++ result = OK; ++ ++fail: ++ return result; ++} ++ ++ ++/*********************************************************************** ++** We don't lock hw accesses here since we never r/w eeprom in IRQ ++** Note: this function sleeps only because of GFP_KERNEL alloc ++*/ ++#ifdef UNUSED ++int ++acxmem_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf) ++{ ++ u8 *data_verify = NULL; ++ unsigned long flags; ++ int count, i; ++ int result = NOT_OK; ++ u16 gpio_orig; ++ ++ printk("acx: WARNING! I would write to EEPROM now. " ++ "Since I really DON'T want to unless you know " ++ "what you're doing (THIS CODE WILL PROBABLY " ++ "NOT WORK YET!), I will abort that now. And " ++ "definitely make sure to make a " ++ "/proc/driver/acx_wlan0_eeprom backup copy first!!! " ++ "(the EEPROM content includes the PCI config header!! " ++ "If you kill important stuff, then you WILL " ++ "get in trouble and people DID get in trouble already)\n"); ++ return OK; ++ ++ FN_ENTER; ++ ++ data_verify = kmalloc(len, GFP_KERNEL); ++ if (!data_verify) { ++ goto end; ++ } ++ ++ /* first we need to enable the OE (EEPROM Output Enable) GPIO line ++ * to be able to write to the EEPROM. ++ * NOTE: an EEPROM writing success has been reported, ++ * but you probably have to modify GPIO_OUT, too, ++ * and you probably need to activate a different GPIO ++ * line instead! */ ++ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE); ++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1); ++ write_flush(adev); ++ ++ /* ok, now start writing the data out */ ++ for (i = 0; i < len; i++) { ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i); ++ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i)); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 1); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ if (unlikely(!--count)) { ++ printk("WARNING, DANGER!!! " ++ "Timeout waiting for EEPROM write\n"); ++ goto end; ++ } ++ cpu_relax(); ++ } ++ } ++ ++ /* disable EEPROM writing */ ++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig); ++ write_flush(adev); ++ ++ /* now start a verification run */ ++ for (i = 0; i < len; i++) { ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ if (unlikely(!--count)) { ++ printk("timeout waiting for EEPROM read\n"); ++ goto end; ++ } ++ cpu_relax(); ++ } ++ ++ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA); ++ } ++ ++ if (0 == memcmp(charbuf, data_verify, len)) ++ result = OK; /* read data matches, success */ ++ ++end: ++ kfree(data_verify); ++ FN_EXIT1(result); ++ return result; ++} ++#endif /* UNUSED */ ++ ++ ++/*********************************************************************** ++** acxmem_s_read_phy_reg ++** ++** Messing with rx/tx disabling and enabling here ++** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic ++*/ ++int ++acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf) ++{ ++ int result = NOT_OK; ++ int count; ++ ++ FN_ENTER; ++ ++ write_reg32(adev, IO_ACX_PHY_ADDR, reg); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_PHY_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg32(adev, IO_ACX_PHY_CTL)) { ++ /* scheduling away instead of CPU burning loop ++ * doesn't seem to work here at all: ++ * awful delay, sometimes also failure. ++ * Doesn't matter anyway (only small delay). */ ++ if (unlikely(!--count)) { ++ printk("%s: timeout waiting for phy read\n", ++ adev->ndev->name); ++ *charbuf = 0; ++ goto fail; ++ } ++ cpu_relax(); ++ } ++ ++ log(L_DEBUG, "count was %u\n", count); ++ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA); ++ ++ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg); ++ result = OK; ++ goto fail; /* silence compiler warning */ ++fail: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value) ++{ ++ int count; ++ FN_ENTER; ++ ++ /* mprusko said that 32bit accesses result in distorted sensitivity ++ * on his card. Unconfirmed, looks like it's not true (most likely since we ++ * now properly flush writes). */ ++ write_reg32(adev, IO_ACX_PHY_DATA, value); ++ write_reg32(adev, IO_ACX_PHY_ADDR, reg); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_PHY_CTL, 1); ++ write_flush(adev); ++ ++ count = 0xffff; ++ while (read_reg32(adev, IO_ACX_PHY_CTL)) { ++ /* scheduling away instead of CPU burning loop ++ * doesn't seem to work here at all: ++ * awful delay, sometimes also failure. ++ * Doesn't matter anyway (only small delay). */ ++ if (unlikely(!--count)) { ++ printk("%s: timeout waiting for phy read\n", ++ adev->ndev->name); ++ goto fail; ++ } ++ cpu_relax(); ++ } ++ ++ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg); ++ fail: ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++#define NO_AUTO_INCREMENT 1 ++ ++/*********************************************************************** ++** acxmem_s_write_fw ++** ++** Write the firmware image into the card. ++** ++** Arguments: ++** adev wlan device structure ++** fw_image firmware image. ++** ++** Returns: ++** 1 firmware image corrupted ++** 0 success ++*/ ++static int ++acxmem_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset) ++{ ++ int len, size, checkMismatch = -1; ++ u32 sum, v32, tmp, id; ++ /* we skip the first four bytes which contain the control sum */ ++ const u8 *p = (u8*)fw_image + 4; ++ ++ /* start the image checksum by adding the image size value */ ++ sum = p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ ++#ifdef NOPE ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */ ++#else ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */ ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */ ++ write_flush(adev); ++#endif ++#endif ++ len = 0; ++ size = le32_to_cpu(fw_image->size) & (~3); ++ ++ while (likely(len < size)) { ++ v32 = be32_to_cpu(*(u32*)p); ++ sum += p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ len += 4; ++ ++#ifdef NOPE ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4); ++ write_flush(adev); ++#endif ++ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32); ++ write_flush(adev); ++#endif ++ write_slavemem32 (adev, offset + len - 4, v32); ++ ++ id = read_id_register (adev); ++ ++ /* ++ * check the data written ++ */ ++ tmp = read_slavemem32 (adev, offset + len - 4); ++ if (checkMismatch && (tmp != v32)) { ++ printk ("first data mismatch at 0x%08x good 0x%08x bad 0x%08x id 0x%08x\n", ++ offset + len - 4, v32, tmp, id); ++ checkMismatch = 0; ++ } ++ } ++ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n", ++ size, sum, le32_to_cpu(fw_image->chksum)); ++ ++ /* compare our checksum with the stored image checksum */ ++ return (sum != le32_to_cpu(fw_image->chksum)); ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_validate_fw ++** ++** Compare the firmware image given with ++** the firmware image written into the card. ++** ++** Arguments: ++** adev wlan device structure ++** fw_image firmware image. ++** ++** Returns: ++** NOT_OK firmware image corrupted or not correctly written ++** OK success ++*/ ++static int ++acxmem_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image, ++ u32 offset) ++{ ++ u32 sum, v32, w32; ++ int len, size; ++ int result = OK; ++ /* we skip the first four bytes which contain the control sum */ ++ const u8 *p = (u8*)fw_image + 4; ++ ++ /* start the image checksum by adding the image size value */ ++ sum = p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ ++ write_reg32(adev, IO_ACX_SLV_END_CTL, 0); ++ ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */ ++#else ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */ ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */ ++#endif ++ ++ len = 0; ++ size = le32_to_cpu(fw_image->size) & (~3); ++ ++ while (likely(len < size)) { ++ v32 = be32_to_cpu(*(u32*)p); ++ p += 4; ++ len += 4; ++ ++#ifdef NOPE ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4); ++#endif ++ udelay(10); ++ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA); ++#endif ++ w32 = read_slavemem32 (adev, offset + len - 4); ++ ++ if (unlikely(w32 != v32)) { ++ printk("acx: FATAL: firmware upload: " ++ "data parts at offset %d don't match\n(0x%08X vs. 0x%08X)!\n" ++ "I/O timing issues or defective memory, with DWL-xx0+? " ++ "ACX_IO_WIDTH=16 may help. Please report\n", ++ len, v32, w32); ++ result = NOT_OK; ++ break; ++ } ++ ++ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24); ++ } ++ ++ /* sum control verification */ ++ if (result != NOT_OK) { ++ if (sum != le32_to_cpu(fw_image->chksum)) { ++ printk("acx: FATAL: firmware upload: " ++ "checksums don't match!\n"); ++ result = NOT_OK; ++ } ++ } ++ ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_upload_fw ++** ++** Called from acx_reset_dev ++*/ ++static int ++acxmem_s_upload_fw(acx_device_t *adev) ++{ ++ firmware_image_t *fw_image = NULL; ++ int res = NOT_OK; ++ int try; ++ u32 file_size; ++ char *filename = "WLANGEN.BIN"; ++#ifdef PATCH_AROUND_BAD_SPOTS ++ u32 offset; ++ int i; ++ /* ++ * arm-linux-objdump -d patch.bin, or ++ * od -Ax -t x4 patch.bin after finding the bounds ++ * of the .text section with arm-linux-objdump -s patch.bin ++ */ ++ u32 patch[] = { ++ 0xe584c030, 0xe59fc008, ++ 0xe92d1000, 0xe59fc004, 0xe8bd8000, 0x0000080c, ++ 0x0000aa68, 0x605a2200, 0x2c0a689c, 0x2414d80a, ++ 0x2f00689f, 0x1c27d007, 0x06241e7c, 0x2f000e24, ++ 0xe000d1f6, 0x602e6018, 0x23036468, 0x480203db, ++ 0x60ca6003, 0xbdf0750a, 0xffff0808 ++ }; ++#endif ++ ++ FN_ENTER; ++ /* No combined image; tell common we need the radio firmware, too */ ++ adev->need_radio_fw = 1; ++ ++ fw_image = acx_s_read_fw(adev->dev, filename, &file_size); ++ if (!fw_image) { ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++ } ++ ++ for (try = 1; try <= 5; try++) { ++ res = acxmem_s_write_fw(adev, fw_image, 0); ++ log(L_DEBUG|L_INIT, "acx_write_fw (main): %d\n", res); ++ if (OK == res) { ++ res = acxmem_s_validate_fw(adev, fw_image, 0); ++ log(L_DEBUG|L_INIT, "acx_validate_fw " ++ "(main): %d\n", res); ++ } ++ ++ if (OK == res) { ++ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED); ++ break; ++ } ++ printk("acx: firmware upload attempt #%d FAILED, " ++ "retrying...\n", try); ++ acx_s_msleep(1000); /* better wait for a while... */ ++ } ++ ++#ifdef PATCH_AROUND_BAD_SPOTS ++ /* ++ * Only want to do this if the firmware is exactly what we expect for an ++ * iPaq 4700; otherwise, bad things would ensue. ++ */ ++ if ((HX4700_FIRMWARE_CHECKSUM == fw_image->chksum) || ++ (HX4700_ALTERNATE_FIRMWARE_CHECKSUM == fw_image->chksum)) { ++ /* ++ * Put the patch after the main firmware image. 0x950c contains ++ * the ACX's idea of the end of the firmware. Use that location to ++ * load ours (which depends on that location being 0xab58) then ++ * update that location to point to after ours. ++ */ ++ ++ offset = read_slavemem32 (adev, 0x950c); ++ ++ log (L_DEBUG, "acx: patching in at 0x%04x\n", offset); ++ ++ for (i = 0; i < sizeof(patch) / sizeof(patch[0]); i++) { ++ write_slavemem32 (adev, offset, patch[i]); ++ offset += sizeof(u32); ++ } ++ ++ /* ++ * Patch the instruction at 0x0804 to branch to our ARM patch at 0xab58 ++ */ ++ write_slavemem32 (adev, 0x0804, 0xea000000 + (0xab58-0x0804-8)/4); ++ ++ /* ++ * Patch the instructions at 0x1f40 to branch to our Thumb patch at 0xab74 ++ * ++ * 4a00 ldr r2, [pc, #0] ++ * 4710 bx r2 ++ * .data 0xab74+1 ++ */ ++ write_slavemem32 (adev, 0x1f40, 0x47104a00); ++ write_slavemem32 (adev, 0x1f44, 0x0000ab74+1); ++ ++ /* ++ * Bump the end of the firmware up to beyond our patch. ++ */ ++ write_slavemem32 (adev, 0x950c, offset); ++ ++ } ++#endif ++ ++ vfree(fw_image); ++ ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_upload_radio ++** ++** Uploads the appropriate radio module firmware into the card. ++*/ ++int ++acxmem_s_upload_radio(acx_device_t *adev) ++{ ++ acx_ie_memmap_t mm; ++ firmware_image_t *radio_image; ++ acx_cmd_radioinit_t radioinit; ++ int res = NOT_OK; ++ int try; ++ u32 offset; ++ u32 size; ++ char filename[sizeof("RADIONN.BIN")]; ++ ++ if (!adev->need_radio_fw) return OK; ++ ++ FN_ENTER; ++ ++ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP); ++ offset = le32_to_cpu(mm.CodeEnd); ++ ++ snprintf(filename, sizeof(filename), "RADIO%02x.BIN", ++ adev->radio_type); ++ radio_image = acx_s_read_fw(adev->dev, filename, &size); ++ if (!radio_image) { ++ printk("acx: can't load radio module '%s'\n", filename); ++ goto fail; ++ } ++ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0); ++ ++ for (try = 1; try <= 5; try++) { ++ res = acxmem_s_write_fw(adev, radio_image, offset); ++ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res); ++ if (OK == res) { ++ res = acxmem_s_validate_fw(adev, radio_image, offset); ++ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res); ++ } ++ ++ if (OK == res) ++ break; ++ printk("acx: radio firmware upload attempt #%d FAILED, " ++ "retrying...\n", try); ++ acx_s_msleep(1000); /* better wait for a while... */ ++ } ++ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0); ++ radioinit.offset = cpu_to_le32(offset); ++ ++ /* no endian conversion needed, remains in card CPU area: */ ++ radioinit.len = radio_image->size; ++ ++ vfree(radio_image); ++ ++ if (OK != res) ++ goto fail; ++ ++ /* will take a moment so let's have a big timeout */ ++ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT, ++ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000)); ++ ++ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP); ++ ++fail: ++ FN_EXIT1(res); ++ return res; ++} ++ ++/*********************************************************************** ++** acxmem_l_reset_mac ++** ++** MAC will be reset ++** Call context: reset_dev ++*/ ++static void ++acxmem_l_reset_mac(acx_device_t *adev) ++{ ++ int count; ++ FN_ENTER; ++ ++ /* halt eCPU */ ++ set_regbits (adev, IO_ACX_ECPU_CTRL, 0x1); ++ ++ /* now do soft reset of eCPU, set bit */ ++ set_regbits (adev, IO_ACX_SOFT_RESET, 0x1); ++ log(L_DEBUG, "%s: enable soft reset...\n", __func__); ++ ++ /* Windows driver sleeps here for a while with this sequence */ ++ for (count = 0; count < 200; count++) { ++ udelay (50); ++ } ++ ++ /* now clear bit again: deassert eCPU reset */ ++ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__); ++ clear_regbits (adev, IO_ACX_SOFT_RESET, 0x1); ++ ++ /* now start a burst read from initial EEPROM */ ++ set_regbits (adev, IO_ACX_EE_START, 0x1); ++ ++ /* ++ * Windows driver sleeps here for a while with this sequence ++ */ ++ for (count = 0; count < 200; count++) { ++ udelay (50); ++ } ++ ++ /* Windows driver writes 0x10000 to register 0x808 here */ ++ ++ write_reg32 (adev, 0x808, 0x10000); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_verify_init ++*/ ++static int ++acxmem_s_verify_init(acx_device_t *adev) ++{ ++ int result = NOT_OK; ++ unsigned long timeout; ++ ++ FN_ENTER; ++ ++ timeout = jiffies + 2*HZ; ++ for (;;) { ++ u32 irqstat = read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES); ++ if ((irqstat != 0xFFFFFFFF) && (irqstat & HOST_INT_FCS_THRESHOLD)) { ++ result = OK; ++ write_reg32(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD); ++ break; ++ } ++ if (time_after(jiffies, timeout)) ++ break; ++ /* Init may take up to ~0.5 sec total */ ++ acx_s_msleep(50); ++ } ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** A few low-level helpers ++** ++** Note: these functions are not protected by lock ++** and thus are never allowed to be called from IRQ. ++** Also they must not race with fw upload which uses same hw regs ++*/ ++ ++/*********************************************************************** ++** acxmem_write_cmd_type_status ++*/ ++ ++static inline void ++acxmem_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status) ++{ ++ write_slavemem32 (adev, (u32) adev->cmd_area, type | (status << 16)); ++ write_flush(adev); ++} ++ ++ ++/*********************************************************************** ++** acxmem_read_cmd_type_status ++*/ ++static u32 ++acxmem_read_cmd_type_status(acx_device_t *adev) ++{ ++ u32 cmd_type, cmd_status; ++ ++ cmd_type = read_slavemem32 (adev, (u32) adev->cmd_area); ++ ++ cmd_status = (cmd_type >> 16); ++ cmd_type = (u16)cmd_type; ++ ++ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n", ++ cmd_type, cmd_status, ++ acx_cmd_status_str(cmd_status)); ++ ++ return cmd_status; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_reset_dev ++** ++** Arguments: ++** netdevice that contains the adev variable ++** Returns: ++** NOT_OK on fail ++** OK on success ++** Side effects: ++** device is hard reset ++** Call context: ++** acxmem_e_probe ++** Comment: ++** This resets the device using low level hardware calls ++** as well as uploads and verifies the firmware to the card ++*/ ++ ++static inline void ++init_mboxes(acx_device_t *adev) ++{ ++ u32 cmd_offs, info_offs; ++ ++ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS); ++ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS); ++ adev->cmd_area = (u8*) cmd_offs; ++ adev->info_area = (u8*) info_offs; ++ /* ++ log(L_DEBUG, "iobase2=%p\n" ++ */ ++ log( L_DEBUG, "cmd_mbox_offset=%X cmd_area=%p\n" ++ "info_mbox_offset=%X info_area=%p\n", ++ cmd_offs, adev->cmd_area, ++ info_offs, adev->info_area); ++} ++ ++ ++static inline void ++read_eeprom_area(acx_device_t *adev) ++{ ++#if ACX_DEBUG > 1 ++ int offs; ++ u8 tmp; ++ ++ for (offs = 0x8c; offs < 0xb9; offs++) ++ acxmem_read_eeprom_byte(adev, offs, &tmp); ++#endif ++} ++ ++static int ++acxmem_s_reset_dev(acx_device_t *adev) ++{ ++ const char* msg = ""; ++ unsigned long flags; ++ int result = NOT_OK; ++ u16 hardware_info; ++ u16 ecpu_ctrl; ++ int count; ++ u32 tmp; ++ ++ FN_ENTER; ++ /* ++ write_reg32 (adev, IO_ACX_SLV_MEM_CP, 0); ++ */ ++ /* reset the device to make sure the eCPU is stopped ++ * to upload the firmware correctly */ ++ ++ acx_lock(adev, flags); ++ ++ /* Windows driver does some funny things here */ ++ /* ++ * clear bit 0x200 in register 0x2A0 ++ */ ++ clear_regbits (adev, 0x2A0, 0x200); ++ ++ /* ++ * Set bit 0x200 in ACX_GPIO_OUT ++ */ ++ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200); ++ ++ /* ++ * read register 0x900 until its value is 0x8400104C, sleeping ++ * in between reads if it's not immediate ++ */ ++ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID); ++ count = 500; ++ while (count-- && (tmp != ACX_VENDOR_ID)) { ++ mdelay (10); ++ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID); ++ } ++ ++ /* end what Windows driver does */ ++ ++ acxmem_l_reset_mac(adev); ++ ++ ecpu_ctrl = read_reg32(adev, IO_ACX_ECPU_CTRL) & 1; ++ if (!ecpu_ctrl) { ++ msg = "eCPU is already running. "; ++ goto end_unlock; ++ } ++ ++#ifdef WE_DONT_NEED_THAT_DO_WE ++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) { ++ /* eCPU most likely means "embedded CPU" */ ++ msg = "eCPU did not start after boot from flash. "; ++ goto end_unlock; ++ } ++ ++ /* check sense on reset flags */ ++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) { ++ printk("%s: eCPU did not start after boot (SOR), " ++ "is this fatal?\n", adev->ndev->name); ++ } ++#endif ++ /* scan, if any, is stopped now, setting corresponding IRQ bit */ ++ adev->irq_status |= HOST_INT_SCAN_COMPLETE; ++ ++ acx_unlock(adev, flags); ++ ++ /* need to know radio type before fw load */ ++ /* Need to wait for arrival of this information in a loop, ++ * most probably since eCPU runs some init code from EEPROM ++ * (started burst read in reset_mac()) which also ++ * sets the radio type ID */ ++ ++ count = 0xffff; ++ do { ++ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION); ++ if (!--count) { ++ msg = "eCPU didn't indicate radio type"; ++ goto end_fail; ++ } ++ cpu_relax(); ++ } while (!(hardware_info & 0xff00)); /* radio type still zero? */ ++ printk("ACX radio type 0x%02x\n", (hardware_info >> 8) & 0xff); ++ /* printk("DEBUG: count %d\n", count); */ ++ adev->form_factor = hardware_info & 0xff; ++ adev->radio_type = hardware_info >> 8; ++ ++ /* load the firmware */ ++ if (OK != acxmem_s_upload_fw(adev)) ++ goto end_fail; ++ ++ /* acx_s_msleep(10); this one really shouldn't be required */ ++ ++ /* now start eCPU by clearing bit */ ++ clear_regbits (adev, IO_ACX_ECPU_CTRL, 0x1); ++ log(L_DEBUG, "booted eCPU up and waiting for completion...\n"); ++ ++ /* Windows driver clears bit 0x200 in register 0x2A0 here */ ++ clear_regbits (adev, 0x2A0, 0x200); ++ ++ /* Windows driver sets bit 0x200 in ACX_GPIO_OUT here */ ++ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200); ++ /* wait for eCPU bootup */ ++ if (OK != acxmem_s_verify_init(adev)) { ++ msg = "timeout waiting for eCPU. "; ++ goto end_fail; ++ } ++ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n"); ++ init_mboxes(adev); ++ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0); ++ ++ /* test that EEPROM is readable */ ++ read_eeprom_area(adev); ++ ++ result = OK; ++ goto end; ++ ++/* Finish error message. Indicate which function failed */ ++end_unlock: ++ acx_unlock(adev, flags); ++end_fail: ++ printk("acx: %sreset_dev() FAILED\n", msg); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_issue_cmd_timeo ++** ++** Sends command to fw, extract result ++** ++** NB: we do _not_ take lock inside, so be sure to not touch anything ++** which may interfere with IRQ handler operation ++** ++** TODO: busy wait is a bit silly, so: ++** 1) stop doing many iters - go to sleep after first ++** 2) go to waitqueue based approach: wait, not poll! ++*/ ++#undef FUNC ++#define FUNC "issue_cmd" ++ ++#if !ACX_DEBUG ++int ++acxmem_s_issue_cmd_timeo( ++ acx_device_t *adev, ++ unsigned int cmd, ++ void *buffer, ++ unsigned buflen, ++ unsigned cmd_timeout) ++{ ++#else ++int ++acxmem_s_issue_cmd_timeo_debug( ++ acx_device_t *adev, ++ unsigned cmd, ++ void *buffer, ++ unsigned buflen, ++ unsigned cmd_timeout, ++ const char* cmdstr) ++{ ++ unsigned long start = jiffies; ++#endif ++ const char *devname; ++ unsigned counter; ++ u16 irqtype; ++ int i, j; ++ u8 *p; ++ u16 cmd_status; ++ unsigned long timeout; ++ ++ FN_ENTER; ++ ++ devname = adev->ndev->name; ++ if (!devname || !devname[0] || devname[4]=='%') ++ devname = "acx"; ++ ++ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n", ++ cmdstr, buflen, cmd_timeout, ++ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1); ++ ++ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) { ++ printk("%s: "FUNC"(): firmware is not loaded yet, " ++ "cannot execute commands!\n", devname); ++ goto bad; ++ } ++ ++ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) { ++ printk("input buffer (len=%u):\n", buflen); ++ acx_dump_bytes(buffer, buflen); ++ } ++ ++ /* wait for firmware to become idle for our command submission */ ++ timeout = HZ/5; ++ counter = (timeout * 1000 / HZ) - 1; /* in ms */ ++ timeout += jiffies; ++ do { ++ cmd_status = acxmem_read_cmd_type_status(adev); ++ /* Test for IDLE state */ ++ if (!cmd_status) ++ break; ++ if (counter % 8 == 0) { ++ if (time_after(jiffies, timeout)) { ++ counter = 0; ++ break; ++ } ++ /* we waited 8 iterations, no luck. Sleep 8 ms */ ++ acx_s_msleep(8); ++ } ++ } while (likely(--counter)); ++ ++ if (!counter) { ++ /* the card doesn't get idle, we're in trouble */ ++ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n", ++ devname, cmd_status); ++#if DUMP_IF_SLOW > 0 ++ dump_acxmem (adev, 0, 0x10000); ++ panic ("not idle"); ++#endif ++ goto bad; ++ } else if (counter < 190) { /* if waited >10ms... */ ++ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. " ++ "Please report\n", 199 - counter); ++ } ++ ++ /* now write the parameters of the command if needed */ ++ if (buffer && buflen) { ++ /* if it's an INTERROGATE command, just pass the length ++ * of parameters to read, as data */ ++#if CMD_DISCOVERY ++ if (cmd == ACX1xx_CMD_INTERROGATE) ++ memset_io(adev->cmd_area + 4, 0xAA, buflen); ++#endif ++ /* ++ * slave memory version ++ */ ++ copy_to_slavemem (adev, (u32) (adev->cmd_area + 4), buffer, ++ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen); ++ } ++ /* now write the actual command type */ ++ acxmem_write_cmd_type_status(adev, cmd, 0); ++ ++ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */ ++ adev->irq_status &= ~HOST_INT_CMD_COMPLETE; ++ ++ /* execute command */ ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD); ++ write_flush(adev); ++ ++ /* wait for firmware to process command */ ++ ++ /* Ensure nonzero and not too large timeout. ++ ** Also converts e.g. 100->99, 200->199 ++ ** which is nice but not essential */ ++ cmd_timeout = (cmd_timeout-1) | 1; ++ if (unlikely(cmd_timeout > 1199)) ++ cmd_timeout = 1199; ++ ++ /* we schedule away sometimes (timeout can be large) */ ++ counter = cmd_timeout; ++ timeout = jiffies + cmd_timeout * HZ / 1000; ++ do { ++ if (!adev->irqs_active) { /* IRQ disabled: poll */ ++ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES); ++ if (irqtype & HOST_INT_CMD_COMPLETE) { ++ write_reg16(adev, IO_ACX_IRQ_ACK, ++ HOST_INT_CMD_COMPLETE); ++ break; ++ } ++ } else { /* Wait when IRQ will set the bit */ ++ irqtype = adev->irq_status; ++ if (irqtype & HOST_INT_CMD_COMPLETE) ++ break; ++ } ++ ++ if (counter % 8 == 0) { ++ if (time_after(jiffies, timeout)) { ++ counter = 0; ++ break; ++ } ++ /* we waited 8 iterations, no luck. Sleep 8 ms */ ++ acx_s_msleep(8); ++ } ++ } while (likely(--counter)); ++ ++ /* save state for debugging */ ++ cmd_status = acxmem_read_cmd_type_status(adev); ++ ++ /* put the card in IDLE state */ ++ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0); ++ ++ if (!counter) { /* timed out! */ ++ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. " ++ "irq bits:0x%04X irq_status:0x%04X timeout:%dms " ++ "cmd_status:%d (%s)\n", ++ devname, (adev->irqs_active) ? "waiting" : "polling", ++ irqtype, adev->irq_status, cmd_timeout, ++ cmd_status, acx_cmd_status_str(cmd_status)); ++ printk("%s: "FUNC"(): device irq status 0x%04x\n", ++ devname, read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES)); ++ printk("%s: "FUNC"(): IO_ACX_IRQ_MASK 0x%04x IO_ACX_FEMR 0x%04x\n", ++ devname, ++ read_reg16 (adev, IO_ACX_IRQ_MASK), ++ read_reg16 (adev, IO_ACX_FEMR)); ++ if (read_reg16 (adev, IO_ACX_IRQ_MASK) == 0xffff) { ++ printk ("acxmem: firmware probably hosed - reloading\n"); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++ { ++ pm_message_t state; ++ /* acxmem_e_suspend (resume_pdev, state); */ ++ acxmem_e_suspend (adev->ndev , state); ++ } ++#else ++ acxmem_e_suspend (adev, 0); ++#endif ++ { ++ resume_ndev = adev->ndev; ++ fw_resumer (NULL); ++ } ++ } ++ ++ goto bad; ++ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */ ++ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. " ++ "count:%d. Please report\n", ++ (adev->irqs_active) ? "waited" : "polled", ++ cmd_timeout - counter, counter); ++ } ++ ++ if (1 != cmd_status) { /* it is not a 'Success' */ ++ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). " ++ "Took %dms of %d\n", ++ devname, cmd_status, acx_cmd_status_str(cmd_status), ++ cmd_timeout - counter, cmd_timeout); ++ /* zero out result buffer ++ * WARNING: this will trash stack in case of illegally large input ++ * length! */ ++ if (buflen > 388) { ++ /* ++ * 388 is maximum command length ++ */ ++ printk ("invalid length 0x%08x\n", buflen); ++ buflen = 388; ++ } ++ p = (u8 *) buffer; ++ for (i = 0; i < buflen; i+= 16) { ++ printk ("%04x:", i); ++ for (j = 0; (j < 16) && (i+j < buflen); j++) { ++ printk (" %02x", *p++); ++ } ++ printk ("\n"); ++ } ++ if (buffer && buflen) ++ memset(buffer, 0, buflen); ++ goto bad; ++ } ++ ++ /* read in result parameters if needed */ ++ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) { ++ copy_from_slavemem (adev, buffer, (u32) (adev->cmd_area + 4), buflen); ++ if (acx_debug & L_DEBUG) { ++ printk("output buffer (len=%u): ", buflen); ++ acx_dump_bytes(buffer, buflen); ++ } ++ } ++ ++/* ok: */ ++ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n", ++ cmdstr, jiffies - start); ++ FN_EXIT1(OK); ++ return OK; ++ ++bad: ++ /* Give enough info so that callers can avoid ++ ** printing their own diagnostic messages */ ++#if ACX_DEBUG ++ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr); ++#else ++ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd); ++#endif ++ dump_stack(); ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++#if defined(NONESSENTIAL_FEATURES) ++typedef struct device_id { ++ unsigned char id[6]; ++ char *descr; ++ char *type; ++} device_id_t; ++ ++static const device_id_t ++device_ids[] = ++{ ++ { ++ {'G', 'l', 'o', 'b', 'a', 'l'}, ++ NULL, ++ NULL, ++ }, ++ { ++ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, ++ "uninitialized", ++ "SpeedStream SS1021 or Gigafast WF721-AEX" ++ }, ++ { ++ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85}, ++ "non-standard", ++ "DrayTek Vigor 520" ++ }, ++ { ++ {'?', '?', '?', '?', '?', '?'}, ++ "non-standard", ++ "Level One WPC-0200" ++ }, ++ { ++ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, ++ "empty", ++ "DWL-650+ variant" ++ } ++}; ++ ++static void ++acx_show_card_eeprom_id(acx_device_t *adev) ++{ ++ unsigned char buffer[CARD_EEPROM_ID_SIZE]; ++ int i; ++ ++ memset(&buffer, 0, CARD_EEPROM_ID_SIZE); ++ /* use direct EEPROM access */ ++ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) { ++ if (OK != acxmem_read_eeprom_byte(adev, ++ ACX100_EEPROM_ID_OFFSET + i, ++ &buffer[i])) { ++ printk("acx: reading EEPROM FAILED\n"); ++ break; ++ } ++ } ++ ++ for (i = 0; i < VEC_SIZE(device_ids); i++) { ++ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) { ++ if (device_ids[i].descr) { ++ printk("acx: EEPROM card ID string check " ++ "found %s card ID: is this %s?\n", ++ device_ids[i].descr, device_ids[i].type); ++ } ++ break; ++ } ++ } ++ if (i == VEC_SIZE(device_ids)) { ++ printk("acx: EEPROM card ID string check found " ++ "unknown card: expected 'Global', got '%.*s\'. " ++ "Please report\n", CARD_EEPROM_ID_SIZE, buffer); ++ } ++} ++#endif /* NONESSENTIAL_FEATURES */ ++ ++/*********************************************************************** ++** acxmem_free_desc_queues ++** ++** Releases the queues that have been allocated, the ++** others have been initialised to NULL so this ++** function can be used if only part of the queues were allocated. ++*/ ++ ++void ++acxmem_free_desc_queues(acx_device_t *adev) ++{ ++#define ACX_FREE_QUEUE(size, ptr, phyaddr) \ ++ if (ptr) { \ ++ kfree(ptr); \ ++ ptr = NULL; \ ++ size = 0; \ ++ } ++ ++ FN_ENTER; ++ ++ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy); ++ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy); ++ ++ adev->txdesc_start = NULL; ++ ++ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy); ++ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy); ++ ++ adev->rxdesc_start = NULL; ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_delete_dma_regions ++*/ ++static void ++acxmem_s_delete_dma_regions(acx_device_t *adev) ++{ ++ unsigned long flags; ++ ++ FN_ENTER; ++ /* disable radio Tx/Rx. Shouldn't we use the firmware commands ++ * here instead? Or are we that much down the road that it's no ++ * longer possible here? */ ++ /* ++ * slave memory interface really doesn't like this. ++ */ ++ /* ++ write_reg16(adev, IO_ACX_ENABLE, 0); ++ */ ++ ++ acx_s_msleep(100); ++ ++ acx_lock(adev, flags); ++ acxmem_free_desc_queues(adev); ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_probe ++** ++** Probe routine called when a PCI device w/ matching ID is found. ++** Here's the sequence: ++** - Allocate the PCI resources. ++** - Read the PCMCIA attribute memory to make sure we have a WLAN card ++** - Reset the MAC ++** - Initialize the dev and wlan data ++** - Initialize the MAC ++** ++** pdev - ptr to pci device structure containing info about pci configuration ++** id - ptr to the device id entry that matched this device ++*/ ++static const u16 ++IO_ACX100[] = ++{ ++ 0x0000, /* IO_ACX_SOFT_RESET */ ++ ++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */ ++ 0x0018, /* IO_ACX_SLV_MEM_DATA */ ++ 0x001c, /* IO_ACX_SLV_MEM_CTL */ ++ 0x0020, /* IO_ACX_SLV_END_CTL */ ++ ++ 0x0034, /* IO_ACX_FEMR */ ++ ++ 0x007c, /* IO_ACX_INT_TRIG */ ++ 0x0098, /* IO_ACX_IRQ_MASK */ ++ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */ ++ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */ ++ 0x00ac, /* IO_ACX_IRQ_ACK */ ++ 0x00b0, /* IO_ACX_HINT_TRIG */ ++ ++ 0x0104, /* IO_ACX_ENABLE */ ++ ++ 0x0250, /* IO_ACX_EEPROM_CTL */ ++ 0x0254, /* IO_ACX_EEPROM_ADDR */ ++ 0x0258, /* IO_ACX_EEPROM_DATA */ ++ 0x025c, /* IO_ACX_EEPROM_CFG */ ++ ++ 0x0268, /* IO_ACX_PHY_ADDR */ ++ 0x026c, /* IO_ACX_PHY_DATA */ ++ 0x0270, /* IO_ACX_PHY_CTL */ ++ ++ 0x0290, /* IO_ACX_GPIO_OE */ ++ ++ 0x0298, /* IO_ACX_GPIO_OUT */ ++ ++ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */ ++ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */ ++ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */ ++ ++ 0x02d0, /* IO_ACX_EE_START */ ++ 0x02d4, /* IO_ACX_SOR_CFG */ ++ 0x02d8 /* IO_ACX_ECPU_CTRL */ ++}; ++ ++static const u16 ++IO_ACX111[] = ++{ ++ 0x0000, /* IO_ACX_SOFT_RESET */ ++ ++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */ ++ 0x0018, /* IO_ACX_SLV_MEM_DATA */ ++ 0x001c, /* IO_ACX_SLV_MEM_CTL */ ++ 0x0020, /* IO_ACX_SLV_MEM_CP */ ++ ++ 0x0034, /* IO_ACX_FEMR */ ++ ++ 0x00b4, /* IO_ACX_INT_TRIG */ ++ 0x00d4, /* IO_ACX_IRQ_MASK */ ++ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */ ++ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */ ++ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */ ++ 0x00e8, /* IO_ACX_IRQ_ACK */ ++ 0x00ec, /* IO_ACX_HINT_TRIG */ ++ ++ 0x01d0, /* IO_ACX_ENABLE */ ++ ++ 0x0338, /* IO_ACX_EEPROM_CTL */ ++ 0x033c, /* IO_ACX_EEPROM_ADDR */ ++ 0x0340, /* IO_ACX_EEPROM_DATA */ ++ 0x0344, /* IO_ACX_EEPROM_CFG */ ++ ++ 0x0350, /* IO_ACX_PHY_ADDR */ ++ 0x0354, /* IO_ACX_PHY_DATA */ ++ 0x0358, /* IO_ACX_PHY_CTL */ ++ ++ 0x0374, /* IO_ACX_GPIO_OE */ ++ ++ 0x037c, /* IO_ACX_GPIO_OUT */ ++ ++ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */ ++ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */ ++ 0x0390, /* IO_ACX_EEPROM_INFORMATION */ ++ ++ 0x0100, /* IO_ACX_EE_START */ ++ 0x0104, /* IO_ACX_SOR_CFG */ ++ 0x0108, /* IO_ACX_ECPU_CTRL */ ++}; ++ ++static void ++dummy_netdev_init(struct net_device *ndev) {} ++ ++/* ++ * Most of the acx specific pieces of hardware reset. ++ */ ++static int ++acxmem_complete_hw_reset (acx_device_t *adev) ++{ ++ acx111_ie_configoption_t co; ++ ++ /* NB: read_reg() reads may return bogus data before reset_dev(), ++ * since the firmware which directly controls large parts of the I/O ++ * registers isn't initialized yet. ++ * acx100 seems to be more affected than acx111 */ ++ if (OK != acxmem_s_reset_dev (adev)) ++ return -1; ++ ++ if (IS_ACX100(adev)) { ++ /* ACX100: configopt struct in cmd mailbox - directly after reset */ ++ copy_from_slavemem (adev, (u8*) &co, (u32) adev->cmd_area, sizeof (co)); ++ } ++ ++ if (OK != acx_s_init_mac(adev)) ++ return -3; ++ ++ if (IS_ACX111(adev)) { ++ /* ACX111: configopt struct needs to be queried after full init */ ++ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS); ++ } ++ ++ /* ++ * Set up transmit buffer administration ++ */ ++ init_acx_txbuf (adev); ++ ++ /* ++ * Windows driver writes 0x01000000 to register 0x288, RADIO_CTL, if the form factor ++ * is 3. It also write protects the EEPROM by writing 1<<9 to GPIO_OUT ++ */ ++ if (adev->form_factor == 3) { ++ set_regbits (adev, 0x288, 0x01000000); ++ set_regbits (adev, 0x298, 1<<9); ++ } ++ ++/* TODO: merge them into one function, they are called just once and are the same for pci & usb */ ++ if (OK != acxmem_read_eeprom_byte(adev, 0x05, &adev->eeprom_version)) ++ return -2; ++ ++ acx_s_parse_configoption(adev, &co); ++ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */ ++ acx_display_hardware_details(adev); ++ ++ return 0; ++} ++ ++static int acx_init_netdev(struct net_device *ndev, struct device *dev, int base_addr, int addr_size, int irq) ++{ ++ const char *chip_name; ++ int result = -EIO; ++ int err; ++ u8 chip_type; ++ acx_device_t *adev = NULL; ++ ++ FN_ENTER; ++ ++ /* FIXME: prism54 calls pci_set_mwi() here, ++ * should we do/support the same? */ ++ ++ /* chiptype is u8 but id->driver_data is ulong ++ ** Works for now (possible values are 1 and 2) */ ++ chip_type = CHIPTYPE_ACX100; ++ /* acx100 and acx111 have different PCI memory regions */ ++ if (chip_type == CHIPTYPE_ACX100) { ++ chip_name = "ACX100"; ++ } else if (chip_type == CHIPTYPE_ACX111) { ++ chip_name = "ACX111"; ++ } else { ++ printk("acx: unknown chip type 0x%04X\n", chip_type); ++ goto fail_unknown_chiptype; ++ } ++ ++ printk("acx: found %s-based wireless network card\n", chip_name); ++ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug); ++ ++ ++ dev_set_drvdata(dev, ndev); ++ ++ ether_setup(ndev); ++ ++ ndev->irq = irq; ++ ++ ndev->base_addr = base_addr; ++printk (KERN_INFO "memwinbase=%lx memwinsize=%u\n",memwin.Base,memwin.Size); ++ if (addr_size == 0 || ndev->irq == 0) ++ goto fail_hw_params; ++ ndev->open = &acxmem_e_open; ++ ndev->stop = &acxmem_e_close; ++ //pdev->dev.release = &acxmem_e_release; ++ ndev->hard_start_xmit = &acx_i_start_xmit; ++ ndev->get_stats = &acx_e_get_stats; ++#if IW_HANDLER_VERSION <= 5 ++ ndev->get_wireless_stats = &acx_e_get_wireless_stats; ++#endif ++ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def; ++ ndev->set_multicast_list = &acxmem_i_set_multicast_list; ++ ndev->tx_timeout = &acxmem_i_tx_timeout; ++ ndev->change_mtu = &acx_e_change_mtu; ++ ndev->watchdog_timeo = 4 * HZ; ++ ++ adev = ndev2adev(ndev); ++ spin_lock_init(&adev->lock); /* initial state: unlocked */ ++ spin_lock_init(&adev->txbuf_lock); ++ /* We do not start with downed sem: we want PARANOID_LOCKING to work */ ++ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */ ++ /* since nobody can see new netdev yet, we can as well ++ ** just _presume_ that we're under sem (instead of actually taking it): */ ++ /* acx_sem_lock(adev); */ ++ adev->dev = dev; ++ adev->ndev = ndev; ++ adev->dev_type = DEVTYPE_MEM; ++ adev->chip_type = chip_type; ++ adev->chip_name = chip_name; ++ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111; ++ adev->membase = (volatile u32 *) ndev->base_addr; ++ adev->iobase = (volatile u32 *) ioremap_nocache (ndev->base_addr, addr_size); ++ /* to find crashes due to weird driver access ++ * to unconfigured interface (ifup) */ ++ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead; ++ ++#if defined(NONESSENTIAL_FEATURES) ++ acx_show_card_eeprom_id(adev); ++#endif /* NONESSENTIAL_FEATURES */ ++ ++#ifdef SET_MODULE_OWNER ++ SET_MODULE_OWNER(ndev); ++#endif ++ // need to fix that @@ ++ SET_NETDEV_DEV(ndev, dev); ++ ++ log(L_IRQ|L_INIT, "using IRQ %d\n", ndev->irq); ++ ++ /* ok, pci setup is finished, now start initializing the card */ ++ ++ if (OK != acxmem_complete_hw_reset (adev)) ++ goto fail_reset; ++ ++ /* ++ * Set up default things for most of the card settings. ++ */ ++ acx_s_set_defaults(adev); ++ ++ /* Register the card, AFTER everything else has been set up, ++ * since otherwise an ioctl could step on our feet due to ++ * firmware operations happening in parallel or uninitialized data */ ++ err = register_netdev(ndev); ++ if (OK != err) { ++ printk("acx: register_netdev() FAILED: %d\n", err); ++ goto fail_register_netdev; ++ } ++ ++ acx_proc_register_entries(ndev); ++ ++ /* Now we have our device, so make sure the kernel doesn't try ++ * to send packets even though we're not associated to a network yet */ ++ acx_stop_queue(ndev, "on probe"); ++ acx_carrier_off(ndev, "on probe"); ++ ++ /* ++ * Set up a default monitor type so that poor combinations of initialization ++ * sequences in monitor mode don't end up destroying the hardware type. ++ */ ++ adev->monitor_type = ARPHRD_ETHER; ++ ++ /* ++ * Register to receive inetaddr notifier changes. This will allow us to ++ * catch if the user changes the MAC address of the interface. ++ */ ++ register_netdevice_notifier(&acx_netdev_notifier); ++ ++ /* after register_netdev() userspace may start working with dev ++ * (in particular, on other CPUs), we only need to up the sem */ ++ /* acx_sem_unlock(adev); */ ++ ++ printk("acx "ACX_RELEASE": net device %s, driver compiled " ++ "against wireless extensions %d and Linux %s\n", ++ ndev->name, WIRELESS_EXT, UTS_RELEASE); ++ ++#if CMD_DISCOVERY ++ great_inquisitor(adev); ++#endif ++ ++ result = OK; ++ goto done; ++ ++ /* error paths: undo everything in reverse order... */ ++ ++fail_register_netdev: ++ ++ acxmem_s_delete_dma_regions(adev); ++ ++fail_reset: ++fail_hw_params: ++ free_netdev(ndev); ++fail_unknown_chiptype: ++ ++ ++done: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_remove ++** ++** Shut device down (if not hot unplugged) ++** and deallocate PCI resources for the acx chip. ++** ++** pdev - ptr to PCI device structure containing info about pci configuration ++*/ ++static int __devexit ++acxmem_e_remove(struct pcmcia_device *link) ++{ ++ struct net_device *ndev; ++ acx_device_t *adev; ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ ndev = ((local_info_t*)link->priv)->ndev; ++ if (!ndev) { ++ log(L_DEBUG, "%s: card is unused. Skipping any release code\n", ++ __func__); ++ goto end; ++ } ++ ++ adev = ndev2adev(ndev); ++ ++ /* If device wasn't hot unplugged... */ ++ if (adev_present(adev)) { ++ ++ acx_sem_lock(adev); ++ ++ /* disable both Tx and Rx to shut radio down properly */ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0); ++ ++#ifdef REDUNDANT ++ /* put the eCPU to sleep to save power ++ * Halting is not possible currently, ++ * since not supported by all firmware versions */ ++ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0); ++#endif ++ acx_lock(adev, flags); ++ ++ /* disable power LED to save power :-) */ ++ log(L_INIT, "switching off power LED to save power\n"); ++ acxmem_l_power_led(adev, 0); ++ ++ /* stop our eCPU */ ++ if (IS_ACX111(adev)) { ++ /* FIXME: does this actually keep halting the eCPU? ++ * I don't think so... ++ */ ++ acxmem_l_reset_mac(adev); ++ } else { ++ u16 temp; ++ ++ /* halt eCPU */ ++ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1; ++ write_reg16(adev, IO_ACX_ECPU_CTRL, temp); ++ write_flush(adev); ++ } ++ ++ acx_unlock(adev, flags); ++ ++ acx_sem_unlock(adev); ++ } ++ ++ ++ /* ++ * Unregister the notifier chain ++ */ ++ unregister_netdevice_notifier(&acx_netdev_notifier); ++ ++ /* unregister the device to not let the kernel ++ * (e.g. ioctls) access a half-deconfigured device ++ * NB: this will cause acxmem_e_close() to be called, ++ * thus we shouldn't call it under sem! */ ++ log(L_INIT, "removing device %s\n", ndev->name); ++ unregister_netdev(ndev); ++ ++ /* unregister_netdev ensures that no references to us left. ++ * For paranoid reasons we continue to follow the rules */ ++ acx_sem_lock(adev); ++ ++ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) { ++ acxmem_s_down(ndev); ++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ } ++ ++ acx_proc_unregister_entries(ndev); ++ ++ acxmem_s_delete_dma_regions(adev); ++ ++ /* finally, clean up PCI bus state */ ++ if (adev->iobase) iounmap((void *)adev->iobase); ++ ++ acx_sem_unlock(adev); ++ ++ /* Free netdev (quite late, ++ * since otherwise we might get caught off-guard ++ * by a netdev timeout handler execution ++ * expecting to see a working dev...) */ ++ free_netdev(ndev); ++ ++ printk ("e_remove done\n"); ++end: ++ FN_EXIT0; ++ ++ return 0; ++} ++ ++ ++/*********************************************************************** ++** TODO: PM code needs to be fixed / debugged / tested. ++*/ ++#ifdef CONFIG_PM ++static int ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++acxmem_e_suspend( struct net_device *ndev, pm_message_t state) ++#else ++acxmem_e_suspend( struct net_device *ndev, u32 state) ++#endif ++{ ++ FN_ENTER; ++ acx_device_t *adev; ++ printk("acx: suspend handler is experimental!\n"); ++ printk("sus: dev %p\n", ndev); ++ ++ if (!netif_running(ndev)) ++ goto end; ++ // @@ need to get it from link or something like that ++ adev = ndev2adev(ndev); ++ printk("sus: adev %p\n", adev); ++ ++ acx_sem_lock(adev); ++ ++ netif_device_detach(adev->ndev); /* this one cannot sleep */ ++ acxmem_s_down(adev->ndev); ++ /* down() does not set it to 0xffff, but here we really want that */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ acxmem_s_delete_dma_regions(adev); ++ ++ /* ++ * Turn the ACX chip off. ++ */ ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT0; ++ return OK; ++} ++ ++ ++static void ++fw_resumer(struct work_struct *notused) ++{ ++ acx_device_t *adev; ++ struct net_device *ndev = resume_ndev; ++ ++ printk("acx: resume handler is experimental!\n"); ++ printk("rsm: got dev %p\n", ndev); ++ ++ if (!netif_running(ndev)) ++ return; ++ ++ adev = ndev2adev(ndev); ++ printk("rsm: got adev %p\n", adev); ++ ++ acx_sem_lock(adev); ++ ++ /* ++ * Turn on the ACX. ++ */ ++ ++ acxmem_complete_hw_reset (adev); ++ ++ /* ++ * done by acx_s_set_defaults for initial startup ++ */ ++ acxmem_set_interrupt_mask(adev); ++ ++ printk ("rsm: bringing up interface\n"); ++ SET_BIT (adev->set_mask, GETSET_ALL); ++ acxmem_s_up(ndev); ++ printk("rsm: acx up done\n"); ++ ++ /* now even reload all card parameters as they were before suspend, ++ * and possibly be back in the network again already :-) ++ */ ++ /* - most settings updated in acxmem_s_up() ++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) { ++ adev->set_mask = GETSET_ALL; ++ acx_s_update_card_settings(adev); ++ printk("rsm: settings updated\n"); ++ } ++ */ ++ netif_device_attach(ndev); ++ printk("rsm: device attached\n"); ++ ++ acx_sem_unlock(adev); ++} ++ ++DECLARE_WORK( fw_resume_work, fw_resumer ); ++ ++static int ++acxmem_e_resume(struct pcmcia_device *link) ++{ ++ FN_ENTER; ++ ++ //resume_pdev = pdev; ++ schedule_work( &fw_resume_work ); ++ ++ FN_EXIT0; ++ return OK; ++} ++#endif /* CONFIG_PM */ ++ ++ ++/*********************************************************************** ++** acxmem_s_up ++** ++** This function is called by acxmem_e_open (when ifconfig sets the device as up) ++** ++** Side effects: ++** - Enables on-card interrupt requests ++** - calls acx_s_start ++*/ ++ ++static void ++enable_acx_irq(acx_device_t *adev) ++{ ++ FN_ENTER; ++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask); ++ write_reg16(adev, IO_ACX_FEMR, 0x8000); ++ adev->irqs_active = 1; ++ FN_EXIT0; ++} ++ ++static void ++acxmem_s_up(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ enable_acx_irq(adev); ++ acx_unlock(adev, flags); ++ ++ /* acx fw < 1.9.3.e has a hardware timer, and older drivers ++ ** used to use it. But we don't do that anymore, our OS ++ ** has reliable software timers */ ++ init_timer(&adev->mgmt_timer); ++ adev->mgmt_timer.function = acx_i_timer; ++ adev->mgmt_timer.data = (unsigned long)adev; ++ ++ /* Need to set ACX_STATE_IFACE_UP first, or else ++ ** timer won't be started by acx_set_status() */ ++ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ /* actual scan cmd will happen in start() */ ++ acx_set_status(adev, ACX_STATUS_1_SCANNING); break; ++ case ACX_MODE_3_AP: ++ case ACX_MODE_MONITOR: ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break; ++ } ++ ++ acx_s_start(adev); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_down ++** ++** This disables the netdevice ++** ++** Side effects: ++** - disables on-card interrupt request ++*/ ++ ++static void ++disable_acx_irq(acx_device_t *adev) ++{ ++ FN_ENTER; ++ ++ /* I guess mask is not 0xffff because acx100 won't signal ++ ** cmd completion then (needed for ifup). ++ ** Someone with acx100 please confirm */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ adev->irqs_active = 0; ++ FN_EXIT0; ++} ++ ++static void ++acxmem_s_down(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ /* Disable IRQs first, so that IRQs cannot race with us */ ++ /* then wait until interrupts have finished executing on other CPUs */ ++ acx_lock(adev, flags); ++ disable_acx_irq(adev); ++ synchronize_irq(adev->pdev->irq); ++ acx_unlock(adev, flags); ++ ++ /* we really don't want to have an asynchronous tasklet disturb us ++ ** after something vital for its job has been shut down, so ++ ** end all remaining work now. ++ ** ++ ** NB: carrier_off (done by set_status below) would lead to ++ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK(). ++ ** That's why we do FLUSH first. ++ ** ++ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK() ++ ** waits for acx_e_after_interrupt_task to complete if it is running ++ ** on another CPU, but acx_e_after_interrupt_task ++ ** will sleep on sem forever, because it is taken by us! ++ ** Work around that by temporary sem unlock. ++ ** This will fail miserably if we'll be hit by concurrent ++ ** iwconfig or something in between. TODO! */ ++ acx_sem_unlock(adev); ++ FLUSH_SCHEDULED_WORK(); ++ acx_sem_lock(adev); ++ ++ /* This is possible: ++ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task -> ++ ** -> set_status(ASSOCIATED) -> wake_queue() ++ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK ++ ** lock/unlock is just paranoia, maybe not needed */ ++ acx_lock(adev, flags); ++ acx_stop_queue(ndev, "on ifdown"); ++ acx_set_status(adev, ACX_STATUS_0_STOPPED); ++ acx_unlock(adev, flags); ++ ++ /* kernel/timer.c says it's illegal to del_timer_sync() ++ ** a timer which restarts itself. We guarantee this cannot ++ ** ever happen because acx_i_timer() never does this if ++ ** status is ACX_STATUS_0_STOPPED */ ++ del_timer_sync(&adev->mgmt_timer); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_open ++** ++** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP ++** from clear to set. In other words: ifconfig up. ++** ++** Returns: ++** 0 success ++** >0 f/w reported error ++** <0 driver reported error ++*/ ++static int ++acxmem_e_open(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result = OK; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ acx_init_task_scheduler(adev); ++ ++/* TODO: pci_set_power_state(pdev, PCI_D0); ? */ ++ ++#if 0 ++ /* request shared IRQ handler */ ++ if (request_irq(ndev->irq, acxmem_i_interrupt, SA_INTERRUPT, ndev->name, ndev)) { ++ printk("%s: request_irq FAILED\n", ndev->name); ++ result = -EAGAIN; ++ goto done; ++ } ++ set_irq_type (ndev->irq, IRQT_FALLING); ++ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq); ++#endif ++ ++ /* ifup device */ ++ acxmem_s_up(ndev); ++ ++ /* We don't currently have to do anything else. ++ * The setup of the MAC should be subsequently completed via ++ * the mlme commands. ++ * Higher layers know we're ready from dev->start==1 and ++ * dev->tbusy==0. Our rx path knows to pass up received/ ++ * frames because of dev->flags&IFF_UP is true. ++ */ ++done: ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_close ++** ++** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP ++** from set to clear. I.e. called by "ifconfig DEV down" ++** ++** Returns: ++** 0 success ++** >0 f/w reported error ++** <0 driver reported error ++*/ ++static int ++acxmem_e_close(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ /* ifdown device */ ++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ if (netif_device_present(ndev)) { ++ acxmem_s_down(ndev); ++ } ++ ++ /* disable all IRQs, release shared IRQ handler */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ free_irq(ndev->irq, ndev); ++ ++/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */ ++ ++ /* We currently don't have to do anything else. ++ * Higher layers know we're not ready from dev->start==0 and ++ * dev->tbusy==1. Our rx path knows to not pass up received ++ * frames because of dev->flags&IFF_UP is false. ++ */ ++ acx_sem_unlock(adev); ++ ++ log(L_INIT, "closed device\n"); ++ FN_EXIT0; ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acxmem_i_tx_timeout ++** ++** Called from network core. Must not sleep! ++*/ ++static void ++acxmem_i_tx_timeout(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ unsigned int tx_num_cleaned; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ ++ /* clean processed tx descs, they may have been completely full */ ++ tx_num_cleaned = acxmem_l_clean_txdesc(adev); ++ ++ /* nothing cleaned, yet (almost) no free buffers available? ++ * --> clean all tx descs, no matter which status!! ++ * Note that I strongly suspect that doing emergency cleaning ++ * may confuse the firmware. This is a last ditch effort to get ++ * ANYTHING to work again... ++ * ++ * TODO: it's best to simply reset & reinit hw from scratch... ++ */ ++ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) { ++ printk("%s: FAILED to free any of the many full tx buffers. " ++ "Switching to emergency freeing. " ++ "Please report!\n", ndev->name); ++ acxmem_l_clean_txdesc_emergency(adev); ++ } ++ ++ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status)) ++ acx_wake_queue(ndev, "after tx timeout"); ++ ++ /* stall may have happened due to radio drift, so recalib radio */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB); ++ ++ /* do unimportant work last */ ++ printk("%s: tx timeout!\n", ndev->name); ++ adev->stats.tx_errors++; ++ ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_i_set_multicast_list ++** FIXME: most likely needs refinement ++*/ ++static void ++acxmem_i_set_multicast_list(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ ++ /* firmwares don't have allmulti capability, ++ * so just use promiscuous mode instead in this case. */ ++ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) { ++ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS); ++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI); ++ SET_BIT(adev->set_mask, SET_RXCONFIG); ++ /* let kernel know in case *we* needed to set promiscuous */ ++ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI); ++ } else { ++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS); ++ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI); ++ SET_BIT(adev->set_mask, SET_RXCONFIG); ++ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI); ++ } ++ ++ /* cannot update card settings directly here, atomic context */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG); ++ ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxmem_l_process_rxdesc ++** ++** Called directly and only from the IRQ handler ++*/ ++ ++#if !ACX_DEBUG ++static inline void log_rxbuffer(const acx_device_t *adev) {} ++#else ++static void ++log_rxbuffer(const acx_device_t *adev) ++{ ++ register const struct rxhostdesc *rxhostdesc; ++ int i; ++ /* no FN_ENTER here, we don't want that */ ++ ++ rxhostdesc = adev->rxhostdesc_start; ++ if (unlikely(!rxhostdesc)) return; ++ for (i = 0; i < RX_CNT; i++) { ++ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN)) ++ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL))) ++ printk("rx: buf %d full\n", i); ++ rxhostdesc++; ++ } ++} ++#endif ++ ++static void ++acxmem_l_process_rxdesc(acx_device_t *adev) ++{ ++ register rxhostdesc_t *hostdesc; ++ register rxdesc_t *rxdesc; ++ unsigned count, tail; ++ u32 addr; ++ u8 Ctl_8; ++ ++ FN_ENTER; ++ ++ if (unlikely(acx_debug & L_BUFR)) ++ log_rxbuffer(adev); ++ ++ /* First, have a loop to determine the first descriptor that's ++ * full, just in case there's a mismatch between our current ++ * rx_tail and the full descriptor we're supposed to handle. */ ++ tail = adev->rx_tail; ++ count = RX_CNT; ++ while (1) { ++ hostdesc = &adev->rxhostdesc_start[tail]; ++ rxdesc = &adev->rxdesc_start[tail]; ++ /* advance tail regardless of outcome of the below test */ ++ tail = (tail + 1) % RX_CNT; ++ ++ /* ++ * Unlike the PCI interface, where the ACX can write directly to ++ * the host descriptors, on the slave memory interface we have to ++ * pull these. All we really need to do is check the Ctl_8 field ++ * in the rx descriptor on the ACX, which should be 0x11000000 if ++ * we should process it. ++ */ ++ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8)); ++ if ((Ctl_8 & DESC_CTL_HOSTOWN) && ++ (Ctl_8 & DESC_CTL_ACXDONE)) ++ break; /* found it! */ ++ ++ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */ ++ goto end; ++ } ++ ++ /* now process descriptors, starting with the first we figured out */ ++ while (1) { ++ log(L_BUFR, "rx: tail=%u Ctl_8=%02X\n", tail, Ctl_8); ++ /* ++ * If the ACX has CTL_RECLAIM set on this descriptor there ++ * is no buffer associated; it just wants us to tell it to ++ * reclaim the memory. ++ */ ++ if (!(Ctl_8 & DESC_CTL_RECLAIM)) { ++ ++ /* ++ * slave interface - pull data now ++ */ ++ hostdesc->length = read_slavemem16 (adev, (u32) &(rxdesc->total_length)); ++ ++ /* ++ * hostdesc->data is an rxbuffer_t, which includes header information, ++ * but the length in the data packet doesn't. The header information ++ * takes up an additional 12 bytes, so add that to the length we copy. ++ */ ++ addr = read_slavemem32 (adev, (u32) &(rxdesc->ACXMemPtr)); ++ if (addr) { ++ /* ++ * How can &(rxdesc->ACXMemPtr) above ever be zero? Looks like we ++ * get that now and then - try to trap it for debug. ++ */ ++ if (addr & 0xffff0000) { ++ printk("rxdesc 0x%08x\n", (u32) rxdesc); ++ dump_acxmem (adev, 0, 0x10000); ++ panic ("Bad access!"); ++ } ++ chaincopy_from_slavemem (adev, (u8 *) hostdesc->data, addr, ++ hostdesc->length + ++ (u32) &((rxbuffer_t *)0)->hdr_a3); ++ acx_l_process_rxbuf(adev, hostdesc->data); ++ } ++ } ++ else { ++ printk ("rx reclaim only!\n"); ++ } ++ ++ hostdesc->Status = 0; ++ ++ /* ++ * Let the ACX know we're done. ++ */ ++ CLEAR_BIT (Ctl_8, DESC_CTL_HOSTOWN); ++ SET_BIT (Ctl_8, DESC_CTL_HOSTDONE); ++ SET_BIT (Ctl_8, DESC_CTL_RECLAIM); ++ write_slavemem8 (adev, (u32) &rxdesc->Ctl_8, Ctl_8); ++ ++ /* ++ * Now tell the ACX we've finished with the receive buffer so ++ * it can finish the reclaim. ++ */ ++ write_reg16 (adev, IO_ACX_INT_TRIG, INT_TRIG_RXPRC); ++ ++ /* ok, descriptor is handled, now check the next descriptor */ ++ hostdesc = &adev->rxhostdesc_start[tail]; ++ rxdesc = &adev->rxdesc_start[tail]; ++ ++ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8)); ++ ++ /* if next descriptor is empty, then bail out */ ++ if (!(Ctl_8 & DESC_CTL_HOSTOWN) || !(Ctl_8 & DESC_CTL_ACXDONE)) ++ break; ++ ++ tail = (tail + 1) % RX_CNT; ++ } ++end: ++ adev->rx_tail = tail; ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_i_interrupt ++** ++** IRQ handler (atomic context, must not sleep, blah, blah) ++*/ ++ ++/* scan is complete. all frames now on the receive queue are valid */ ++#define INFO_SCAN_COMPLETE 0x0001 ++#define INFO_WEP_KEY_NOT_FOUND 0x0002 ++/* hw has been reset as the result of a watchdog timer timeout */ ++#define INFO_WATCH_DOG_RESET 0x0003 ++/* failed to send out NULL frame from PS mode notification to AP */ ++/* recommended action: try entering 802.11 PS mode again */ ++#define INFO_PS_FAIL 0x0004 ++/* encryption/decryption process on a packet failed */ ++#define INFO_IV_ICV_FAILURE 0x0005 ++ ++/* Info mailbox format: ++2 bytes: type ++2 bytes: status ++more bytes may follow ++ rumors say about status: ++ 0x0000 info available (set by hw) ++ 0x0001 information received (must be set by host) ++ 0x1000 info available, mailbox overflowed (messages lost) (set by hw) ++ but in practice we've seen: ++ 0x9000 when we did not set status to 0x0001 on prev message ++ 0x1001 when we did set it ++ 0x0000 was never seen ++ conclusion: this is really a bitfield: ++ 0x1000 is 'info available' bit ++ 'mailbox overflowed' bit is 0x8000, not 0x1000 ++ value of 0x0000 probably means that there are no messages at all ++ P.S. I dunno how in hell hw is supposed to notice that messages are lost - ++ it does NOT clear bit 0x0001, and this bit will probably stay forever set ++ after we set it once. Let's hope this will be fixed in firmware someday ++*/ ++ ++static void ++handle_info_irq(acx_device_t *adev) ++{ ++#if ACX_DEBUG ++ static const char * const info_type_msg[] = { ++ "(unknown)", ++ "scan complete", ++ "WEP key not found", ++ "internal watchdog reset was done", ++ "failed to send powersave (NULL frame) notification to AP", ++ "encrypt/decrypt on a packet has failed", ++ "TKIP tx keys disabled", ++ "TKIP rx keys disabled", ++ "TKIP rx: key ID not found", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "TKIP IV value exceeds thresh" ++ }; ++#endif ++ u32 info_type, info_status; ++ ++ info_type = read_slavemem32 (adev, (u32) adev->info_area); ++ ++ info_status = (info_type >> 16); ++ info_type = (u16)info_type; ++ ++ /* inform fw that we have read this info message */ ++ write_slavemem32(adev, (u32) adev->info_area, info_type | 0x00010000); ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK); ++ write_flush(adev); ++ ++ log(L_CTL, "info_type:%04X info_status:%04X\n", ++ info_type, info_status); ++ ++ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n", ++ info_status, info_type, ++ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ? ++ 0 : info_type] ++ ); ++} ++ ++ ++static void ++log_unusual_irq(u16 irqtype) { ++ /* ++ if (!printk_ratelimit()) ++ return; ++ */ ++ ++ printk("acx: got"); ++ if (irqtype & HOST_INT_TX_XFER) { ++ printk(" Tx_Xfer"); ++ } ++ if (irqtype & HOST_INT_RX_COMPLETE) { ++ printk(" Rx_Complete"); ++ } ++ if (irqtype & HOST_INT_DTIM) { ++ printk(" DTIM"); ++ } ++ if (irqtype & HOST_INT_BEACON) { ++ printk(" Beacon"); ++ } ++ if (irqtype & HOST_INT_TIMER) { ++ log(L_IRQ, " Timer"); ++ } ++ if (irqtype & HOST_INT_KEY_NOT_FOUND) { ++ printk(" Key_Not_Found"); ++ } ++ if (irqtype & HOST_INT_IV_ICV_FAILURE) { ++ printk(" IV_ICV_Failure (crypto)"); ++ } ++ /* HOST_INT_CMD_COMPLETE */ ++ /* HOST_INT_INFO */ ++ if (irqtype & HOST_INT_OVERFLOW) { ++ printk(" Overflow"); ++ } ++ if (irqtype & HOST_INT_PROCESS_ERROR) { ++ printk(" Process_Error"); ++ } ++ /* HOST_INT_SCAN_COMPLETE */ ++ if (irqtype & HOST_INT_FCS_THRESHOLD) { ++ printk(" FCS_Threshold"); ++ } ++ if (irqtype & HOST_INT_UNKNOWN) { ++ printk(" Unknown"); ++ } ++ printk(" IRQ(s)\n"); ++} ++ ++ ++static void ++update_link_quality_led(acx_device_t *adev) ++{ ++ int qual; ++ ++ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise); ++ if (qual > adev->brange_max_quality) ++ qual = adev->brange_max_quality; ++ ++ if (time_after(jiffies, adev->brange_time_last_state_change + ++ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) { ++ acxmem_l_power_led(adev, (adev->brange_last_state == 0)); ++ adev->brange_last_state ^= 1; /* toggle */ ++ adev->brange_time_last_state_change = jiffies; ++ } ++} ++ ++ ++#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */ ++ ++static irqreturn_t ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++acxmem_i_interrupt(int irq, void *dev_id) ++#else ++acxmwm_i_interrupt(int irq, void *dev_id, struct pt_regs *regs) ++#endif ++{ ++ acx_device_t *adev; ++ unsigned long flags; ++ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY; ++ register u16 irqtype; ++ u16 unmasked; ++ ++ adev = ndev2adev((struct net_device*)dev_id); ++ ++ /* LOCKING: can just spin_lock() since IRQs are disabled anyway. ++ * I am paranoid */ ++ acx_lock(adev, flags); ++ ++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR); ++ if (unlikely(0xffff == unmasked)) { ++ /* 0xffff value hints at missing hardware, ++ * so don't do anything. ++ * Not very clean, but other drivers do the same... */ ++ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n"); ++ goto none; ++ } ++ ++ /* We will check only "interesting" IRQ types */ ++ irqtype = unmasked & ~adev->irq_mask; ++ if (!irqtype) { ++ /* We are on a shared IRQ line and it wasn't our IRQ */ ++ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n", ++ unmasked, adev->irq_mask); ++ goto none; ++ } ++ ++ /* Done here because IRQ_NONEs taking three lines of log ++ ** drive me crazy */ ++ FN_ENTER; ++ ++#define IRQ_ITERATE 1 ++#if IRQ_ITERATE ++if (jiffies != adev->irq_last_jiffies) { ++ adev->irq_loops_this_jiffy = 0; ++ adev->irq_last_jiffies = jiffies; ++} ++ ++/* safety condition; we'll normally abort loop below ++ * in case no IRQ type occurred */ ++while (likely(--irqcount)) { ++#endif ++ /* ACK all IRQs ASAP */ ++ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff); ++ ++ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n", ++ unmasked, adev->irq_mask, irqtype); ++ ++ /* Handle most important IRQ types first */ ++ if (irqtype & HOST_INT_RX_DATA) { ++ log(L_IRQ, "got Rx_Data IRQ\n"); ++ acxmem_l_process_rxdesc(adev); ++ } ++ if (irqtype & HOST_INT_TX_COMPLETE) { ++ log(L_IRQ, "got Tx_Complete IRQ\n"); ++ /* don't clean up on each Tx complete, wait a bit ++ * unless we're going towards full, in which case ++ * we do it immediately, too (otherwise we might lockup ++ * with a full Tx buffer if we go into ++ * acxmem_l_clean_txdesc() at a time when we won't wakeup ++ * the net queue in there for some reason...) */ ++ if (adev->tx_free <= TX_START_CLEAN) { ++#if TX_CLEANUP_IN_SOFTIRQ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP); ++#else ++ acxmem_l_clean_txdesc(adev); ++#endif ++ } ++ } ++ ++ /* Less frequent ones */ ++ if (irqtype & (0 ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ | HOST_INT_SCAN_COMPLETE ++ )) { ++ if (irqtype & HOST_INT_CMD_COMPLETE) { ++ log(L_IRQ, "got Command_Complete IRQ\n"); ++ /* save the state for the running issue_cmd() */ ++ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE); ++ } ++ if (irqtype & HOST_INT_INFO) { ++ handle_info_irq(adev); ++ } ++ if (irqtype & HOST_INT_SCAN_COMPLETE) { ++ log(L_IRQ, "got Scan_Complete IRQ\n"); ++ /* need to do that in process context */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN); ++ /* remember that fw is not scanning anymore */ ++ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE); ++ } ++ } ++ ++ /* These we just log, but either they happen rarely ++ * or we keep them masked out */ ++ if (irqtype & (0 ++ /* | HOST_INT_RX_DATA */ ++ /* | HOST_INT_TX_COMPLETE */ ++ | HOST_INT_TX_XFER ++ | HOST_INT_RX_COMPLETE ++ | HOST_INT_DTIM ++ | HOST_INT_BEACON ++ | HOST_INT_TIMER ++ | HOST_INT_KEY_NOT_FOUND ++ | HOST_INT_IV_ICV_FAILURE ++ /* | HOST_INT_CMD_COMPLETE */ ++ /* | HOST_INT_INFO */ ++ | HOST_INT_OVERFLOW ++ | HOST_INT_PROCESS_ERROR ++ /* | HOST_INT_SCAN_COMPLETE */ ++ | HOST_INT_FCS_THRESHOLD ++ | HOST_INT_UNKNOWN ++ )) { ++ log_unusual_irq(irqtype); ++ } ++ ++#if IRQ_ITERATE ++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR); ++ irqtype = unmasked & ~adev->irq_mask; ++ /* Bail out if no new IRQ bits or if all are masked out */ ++ if (!irqtype) ++ break; ++ ++ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) { ++ printk(KERN_ERR "acx: too many interrupts per jiffy!\n"); ++ /* Looks like card floods us with IRQs! Try to stop that */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ /* This will short-circuit all future attempts to handle IRQ. ++ * We cant do much more... */ ++ adev->irq_mask = 0; ++ break; ++ } ++} ++#endif ++ /* Routine to perform blink with range */ ++ if (unlikely(adev->led_power == 2)) ++ update_link_quality_led(adev); ++ ++/* handled: */ ++ /* write_flush(adev); - not needed, last op was read anyway */ ++ acx_unlock(adev, flags); ++ FN_EXIT0; ++ return IRQ_HANDLED; ++ ++none: ++ acx_unlock(adev, flags); ++ return IRQ_NONE; ++} ++ ++ ++/*********************************************************************** ++** acxmem_l_power_led ++*/ ++void ++acxmem_l_power_led(acx_device_t *adev, int enable) ++{ ++ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800; ++ ++ /* A hack. Not moving message rate limiting to adev->xxx ++ * (it's only a debug message after all) */ ++ static int rate_limit = 0; ++ ++ if (rate_limit++ < 3) ++ log(L_IOCTL, "Please report in case toggling the power " ++ "LED doesn't work for your card!\n"); ++ if (enable) ++ write_reg16(adev, IO_ACX_GPIO_OUT, ++ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled); ++ else ++ write_reg16(adev, IO_ACX_GPIO_OUT, ++ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled); ++} ++ ++ ++/*********************************************************************** ++** Ioctls ++*/ ++ ++/*********************************************************************** ++*/ ++int ++acx111pci_ioctl_info( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra) ++{ ++#if ACX_DEBUG > 1 ++ acx_device_t *adev = ndev2adev(ndev); ++ rxdesc_t *rxdesc; ++ txdesc_t *txdesc; ++ rxhostdesc_t *rxhostdesc; ++ txhostdesc_t *txhostdesc; ++ struct acx111_ie_memoryconfig memconf; ++ struct acx111_ie_queueconfig queueconf; ++ unsigned long flags; ++ int i; ++ char memmap[0x34]; ++ char rxconfig[0x8]; ++ char fcserror[0x8]; ++ char ratefallback[0x5]; ++ ++ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) ) ++ return OK; ++ /* using printk() since we checked debug flag already */ ++ ++ acx_sem_lock(adev); ++ ++ if (!IS_ACX111(adev)) { ++ printk("acx111-specific function called " ++ "with non-acx111 chip, aborting\n"); ++ goto end_ok; ++ } ++ ++ /* get Acx111 Memory Configuration */ ++ memset(&memconf, 0, sizeof(memconf)); ++ /* BTW, fails with 12 (Write only) error code. ++ ** Retained for easy testing of issue_cmd error handling :) */ ++ printk ("Interrogating queue config\n"); ++ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG); ++ printk ("done with queue config\n"); ++ ++ /* get Acx111 Queue Configuration */ ++ memset(&queueconf, 0, sizeof(queueconf)); ++ printk ("Interrogating mem config options\n"); ++ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS); ++ printk ("done with mem config options\n"); ++ ++ /* get Acx111 Memory Map */ ++ memset(memmap, 0, sizeof(memmap)); ++ printk ("Interrogating mem map\n"); ++ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP); ++ printk ("done with mem map\n"); ++ ++ /* get Acx111 Rx Config */ ++ memset(rxconfig, 0, sizeof(rxconfig)); ++ printk ("Interrogating rxconfig\n"); ++ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG); ++ printk ("done with queue rxconfig\n"); ++ ++ /* get Acx111 fcs error count */ ++ memset(fcserror, 0, sizeof(fcserror)); ++ printk ("Interrogating fcs err count\n"); ++ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT); ++ printk ("done with err count\n"); ++ ++ /* get Acx111 rate fallback */ ++ memset(ratefallback, 0, sizeof(ratefallback)); ++ printk ("Interrogating rate fallback\n"); ++ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK); ++ printk ("done with rate fallback\n"); ++ ++ /* force occurrence of a beacon interrupt */ ++ /* TODO: comment why is this necessary */ ++ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON); ++ ++ /* dump Acx111 Mem Configuration */ ++ printk("dump mem config:\n" ++ "data read: %d, struct size: %d\n" ++ "Number of stations: %1X\n" ++ "Memory block size: %1X\n" ++ "tx/rx memory block allocation: %1X\n" ++ "count rx: %X / tx: %X queues\n" ++ "options %1X\n" ++ "fragmentation %1X\n" ++ "Rx Queue 1 Count Descriptors: %X\n" ++ "Rx Queue 1 Host Memory Start: %X\n" ++ "Tx Queue 1 Count Descriptors: %X\n" ++ "Tx Queue 1 Attributes: %X\n", ++ memconf.len, (int) sizeof(memconf), ++ memconf.no_of_stations, ++ memconf.memory_block_size, ++ memconf.tx_rx_memory_block_allocation, ++ memconf.count_rx_queues, memconf.count_tx_queues, ++ memconf.options, ++ memconf.fragmentation, ++ memconf.rx_queue1_count_descs, ++ acx2cpu(memconf.rx_queue1_host_rx_start), ++ memconf.tx_queue1_count_descs, ++ memconf.tx_queue1_attributes); ++ ++ /* dump Acx111 Queue Configuration */ ++ printk("dump queue head:\n" ++ "data read: %d, struct size: %d\n" ++ "tx_memory_block_address (from card): %X\n" ++ "rx_memory_block_address (from card): %X\n" ++ "rx1_queue address (from card): %X\n" ++ "tx1_queue address (from card): %X\n" ++ "tx1_queue attributes (from card): %X\n", ++ queueconf.len, (int) sizeof(queueconf), ++ queueconf.tx_memory_block_address, ++ queueconf.rx_memory_block_address, ++ queueconf.rx1_queue_address, ++ queueconf.tx1_queue_address, ++ queueconf.tx1_attributes); ++ ++ /* dump Acx111 Mem Map */ ++ printk("dump mem map:\n" ++ "data read: %d, struct size: %d\n" ++ "Code start: %X\n" ++ "Code end: %X\n" ++ "WEP default key start: %X\n" ++ "WEP default key end: %X\n" ++ "STA table start: %X\n" ++ "STA table end: %X\n" ++ "Packet template start: %X\n" ++ "Packet template end: %X\n" ++ "Queue memory start: %X\n" ++ "Queue memory end: %X\n" ++ "Packet memory pool start: %X\n" ++ "Packet memory pool end: %X\n" ++ "iobase: %p\n" ++ "iobase2: %p\n", ++ *((u16 *)&memmap[0x02]), (int) sizeof(memmap), ++ *((u32 *)&memmap[0x04]), ++ *((u32 *)&memmap[0x08]), ++ *((u32 *)&memmap[0x0C]), ++ *((u32 *)&memmap[0x10]), ++ *((u32 *)&memmap[0x14]), ++ *((u32 *)&memmap[0x18]), ++ *((u32 *)&memmap[0x1C]), ++ *((u32 *)&memmap[0x20]), ++ *((u32 *)&memmap[0x24]), ++ *((u32 *)&memmap[0x28]), ++ *((u32 *)&memmap[0x2C]), ++ *((u32 *)&memmap[0x30]), ++ adev->iobase, ++ adev->iobase2); ++ ++ /* dump Acx111 Rx Config */ ++ printk("dump rx config:\n" ++ "data read: %d, struct size: %d\n" ++ "rx config: %X\n" ++ "rx filter config: %X\n", ++ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig), ++ *((u16 *)&rxconfig[0x04]), ++ *((u16 *)&rxconfig[0x06])); ++ ++ /* dump Acx111 fcs error */ ++ printk("dump fcserror:\n" ++ "data read: %d, struct size: %d\n" ++ "fcserrors: %X\n", ++ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror), ++ *((u32 *)&fcserror[0x04])); ++ ++ /* dump Acx111 rate fallback */ ++ printk("dump rate fallback:\n" ++ "data read: %d, struct size: %d\n" ++ "ratefallback: %X\n", ++ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback), ++ *((u8 *)&ratefallback[0x04])); ++ ++ /* protect against IRQ */ ++ acx_lock(adev, flags); ++ ++ /* dump acx111 internal rx descriptor ring buffer */ ++ rxdesc = adev->rxdesc_start; ++ ++ /* loop over complete receive pool */ ++ if (rxdesc) for (i = 0; i < RX_CNT; i++) { ++ printk("\ndump internal rxdesc %d:\n" ++ "mem pos %p\n" ++ "next 0x%X\n" ++ "acx mem pointer (dynamic) 0x%X\n" ++ "CTL (dynamic) 0x%X\n" ++ "Rate (dynamic) 0x%X\n" ++ "RxStatus (dynamic) 0x%X\n" ++ "Mod/Pre (dynamic) 0x%X\n", ++ i, ++ rxdesc, ++ acx2cpu(rxdesc->pNextDesc), ++ acx2cpu(rxdesc->ACXMemPtr), ++ rxdesc->Ctl_8, ++ rxdesc->rate, ++ rxdesc->error, ++ rxdesc->SNR); ++ rxdesc++; ++ } ++ ++ /* dump host rx descriptor ring buffer */ ++ ++ rxhostdesc = adev->rxhostdesc_start; ++ ++ /* loop over complete receive pool */ ++ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) { ++ printk("\ndump host rxdesc %d:\n" ++ "mem pos %p\n" ++ "buffer mem pos 0x%X\n" ++ "buffer mem offset 0x%X\n" ++ "CTL 0x%X\n" ++ "Length 0x%X\n" ++ "next 0x%X\n" ++ "Status 0x%X\n", ++ i, ++ rxhostdesc, ++ acx2cpu(rxhostdesc->data_phy), ++ rxhostdesc->data_offset, ++ le16_to_cpu(rxhostdesc->Ctl_16), ++ le16_to_cpu(rxhostdesc->length), ++ acx2cpu(rxhostdesc->desc_phy_next), ++ rxhostdesc->Status); ++ rxhostdesc++; ++ } ++ ++ /* dump acx111 internal tx descriptor ring buffer */ ++ txdesc = adev->txdesc_start; ++ ++ /* loop over complete transmit pool */ ++ if (txdesc) for (i = 0; i < TX_CNT; i++) { ++ printk("\ndump internal txdesc %d:\n" ++ "size 0x%X\n" ++ "mem pos %p\n" ++ "next 0x%X\n" ++ "acx mem pointer (dynamic) 0x%X\n" ++ "host mem pointer (dynamic) 0x%X\n" ++ "length (dynamic) 0x%X\n" ++ "CTL (dynamic) 0x%X\n" ++ "CTL2 (dynamic) 0x%X\n" ++ "Status (dynamic) 0x%X\n" ++ "Rate (dynamic) 0x%X\n", ++ i, ++ (int) sizeof(struct txdesc), ++ txdesc, ++ acx2cpu(txdesc->pNextDesc), ++ acx2cpu(txdesc->AcxMemPtr), ++ acx2cpu(txdesc->HostMemPtr), ++ le16_to_cpu(txdesc->total_length), ++ txdesc->Ctl_8, ++ txdesc->Ctl2_8, txdesc->error, ++ txdesc->u.r1.rate); ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ ++ /* dump host tx descriptor ring buffer */ ++ ++ txhostdesc = adev->txhostdesc_start; ++ ++ /* loop over complete host send pool */ ++ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) { ++ printk("\ndump host txdesc %d:\n" ++ "mem pos %p\n" ++ "buffer mem pos 0x%X\n" ++ "buffer mem offset 0x%X\n" ++ "CTL 0x%X\n" ++ "Length 0x%X\n" ++ "next 0x%X\n" ++ "Status 0x%X\n", ++ i, ++ txhostdesc, ++ acx2cpu(txhostdesc->data_phy), ++ txhostdesc->data_offset, ++ le16_to_cpu(txhostdesc->Ctl_16), ++ le16_to_cpu(txhostdesc->length), ++ acx2cpu(txhostdesc->desc_phy_next), ++ le32_to_cpu(txhostdesc->Status)); ++ txhostdesc++; ++ } ++ ++ /* write_reg16(adev, 0xb4, 0x4); */ ++ ++ acx_unlock(adev, flags); ++end_ok: ++ ++ acx_sem_unlock(adev); ++#endif /* ACX_DEBUG */ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acx100mem_ioctl_set_phy_amp_bias( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ u16 gpio_old; ++ ++ if (!IS_ACX100(adev)) { ++ /* WARNING!!! ++ * Removing this check *might* damage ++ * hardware, since we're tweaking GPIOs here after all!!! ++ * You've been warned... ++ * WARNING!!! */ ++ printk("acx: sorry, setting bias level for non-acx100 " ++ "is not supported yet\n"); ++ return OK; ++ } ++ ++ if (*extra > 7) { ++ printk("acx: invalid bias parameter, range is 0-7\n"); ++ return -EINVAL; ++ } ++ ++ acx_sem_lock(adev); ++ ++ /* Need to lock accesses to [IO_ACX_GPIO_OUT]: ++ * IRQ handler uses it to update LED */ ++ acx_lock(adev, flags); ++ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT); ++ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8)); ++ acx_unlock(adev, flags); ++ ++ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old); ++ printk("%s: PHY power amplifier bias: old:%d, new:%d\n", ++ ndev->name, ++ (gpio_old & 0x0700) >> 8, (unsigned char)*extra); ++ ++ acx_sem_unlock(adev); ++ ++ return OK; ++} ++ ++/*************************************************************** ++** acxmem_l_alloc_tx ++** Actually returns a txdesc_t* ptr ++** ++** FIXME: in case of fragments, should allocate multiple descrs ++** after figuring out how many we need and whether we still have ++** sufficiently many. ++*/ ++tx_t* ++acxmem_l_alloc_tx(acx_device_t *adev) ++{ ++ struct txdesc *txdesc; ++ unsigned head; ++ u8 ctl8; ++ static int txattempts = 0; ++ ++ FN_ENTER; ++ ++ if (unlikely(!adev->tx_free)) { ++ printk("acx: BUG: no free txdesc left\n"); ++ /* ++ * Probably the ACX ignored a transmit attempt and now there's a packet ++ * sitting in the queue we think should be transmitting but the ACX doesn't ++ * know about. ++ * On the first pass, send the ACX a TxProc interrupt to try moving ++ * things along, and if that doesn't work (ie, we get called again) completely ++ * flush the transmit queue. ++ */ ++ if (txattempts < 10) { ++ txattempts++; ++ printk ("acx: trying to wake up ACX\n"); ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC); ++ write_flush(adev); } ++ else { ++ txattempts = 0; ++ printk ("acx: flushing transmit queue.\n"); ++ acxmem_l_clean_txdesc_emergency (adev); ++ } ++ txdesc = NULL; ++ goto end; ++ } ++ ++ /* ++ * Make a quick check to see if there is transmit buffer space on ++ * the ACX. This can't guarantee there is enough space for the packet ++ * since we don't yet know how big it is, but it will prevent at least some ++ * annoyances. ++ */ ++ if (!adev->acx_txbuf_blocks_free) { ++ txdesc = NULL; ++ goto end; ++ } ++ ++ head = adev->tx_head; ++ /* ++ * txdesc points to ACX memory ++ */ ++ txdesc = get_txdesc(adev, head); ++ ctl8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ ++ /* ++ * If we don't own the buffer (HOSTOWN) it is certainly not free; however, ++ * we may have previously thought we had enough memory to send ++ * a packet, allocated the buffer then gave up when we found not enough ++ * transmit buffer space on the ACX. In that case, HOSTOWN and ++ * ACXDONE will both be set. ++ */ ++ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_HOSTOWN))) { ++ /* whoops, descr at current index is not free, so probably ++ * ring buffer already full */ ++ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find " ++ "free txdesc\n", head, ctl8); ++ txdesc = NULL; ++ goto end; ++ } ++ ++ /* Needed in case txdesc won't be eventually submitted for tx */ ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_ACXDONE_HOSTOWN); ++ ++ adev->tx_free--; ++ log(L_BUFT, "tx: got desc %u, %u remain\n", ++ head, adev->tx_free); ++ /* Keep a few free descs between head and tail of tx ring. ++ ** It is not absolutely needed, just feels safer */ ++ if (adev->tx_free < TX_STOP_QUEUE) { ++ log(L_BUF, "stop queue (%u tx desc left)\n", ++ adev->tx_free); ++ acx_stop_queue(adev->ndev, NULL); ++ } ++ ++ /* returning current descriptor, so advance to next free one */ ++ adev->tx_head = (head + 1) % TX_CNT; ++end: ++ FN_EXIT0; ++ ++ return (tx_t*)txdesc; ++} ++ ++ ++/*************************************************************** ++** acxmem_l_dealloc_tx ++** Clears out a previously allocatedvoid acxmem_l_dealloc_tx(tx_t *tx_opaque); ++ transmit descriptor. The ACX ++** can get confused if we skip transmit descriptors in the queue, ++** so when we don't need a descriptor return it to its original ++** state and move the queue head pointer back. ++** ++*/ ++void ++acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque) ++{ ++ /* ++ * txdesc is the address of the descriptor on the ACX. ++ */ ++ txdesc_t *txdesc = (txdesc_t*)tx_opaque; ++ txdesc_t tmptxdesc; ++ int index; ++ ++ memset (&tmptxdesc, 0, sizeof(tmptxdesc)); ++ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG; ++ tmptxdesc.u.r1.rate = 0x0a; ++ ++ /* ++ * Clear out all of the transmit descriptor except for the next pointer ++ */ ++ copy_to_slavemem (adev, (u32) &(txdesc->HostMemPtr), ++ (u8 *) &(tmptxdesc.HostMemPtr), ++ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc)); ++ ++ /* ++ * This is only called immediately after we've allocated, so we should ++ * be able to set the head back to this descriptor. ++ */ ++ index = ((u8*) txdesc - (u8*)adev->txdesc_start) / adev->txdesc_size; ++ printk ("acx_dealloc: moving head from %d to %d\n", adev->tx_head, index); ++ adev->tx_head = index; ++} ++ ++ ++/*********************************************************************** ++*/ ++void* ++acxmem_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque) ++{ ++ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data; ++} ++ ++ ++/*********************************************************************** ++** acxmem_l_tx_data ++** ++** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx). ++** Can be called from acx_i_start_xmit (data frames from net core). ++** ++** FIXME: in case of fragments, should loop over the number of ++** pre-allocated tx descrs, properly setting up transfer data and ++** CTL_xxx flags according to fragment number. ++*/ ++void ++acxmem_update_queue_indicator (acx_device_t *adev, int txqueue) ++{ ++#ifdef USING_MORE_THAN_ONE_TRANSMIT_QUEUE ++ u32 indicator; ++ unsigned long flags; ++ int count; ++ ++ /* ++ * Can't handle an interrupt while we're fiddling with the ACX's lock, ++ * according to TI. The ACX is supposed to hold fw_lock for at most ++ * 500ns. ++ */ ++ local_irq_save (flags); ++ ++ /* ++ * Wait for ACX to release the lock (at most 500ns). ++ */ ++ count = 0; ++ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock)) ++ && (count++ < 50)) { ++ ndelay (10); ++ } ++ if (count < 50) { ++ ++ /* ++ * Take out the host lock - anything non-zero will work, so don't worry about ++ * be/le ++ */ ++ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 1); ++ ++ /* ++ * Avoid a race condition ++ */ ++ count = 0; ++ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock)) ++ && (count++ < 50)) { ++ ndelay (10); ++ } ++ ++ if (count < 50) { ++ /* ++ * Mark the queue active ++ */ ++ indicator = read_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator)); ++ indicator |= cpu_to_le32 (1 << txqueue); ++ write_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator), indicator); ++ } ++ ++ /* ++ * Release the host lock ++ */ ++ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 0); ++ ++ } ++ ++ /* ++ * Restore interrupts ++ */ ++ local_irq_restore (flags); ++#endif ++} ++ ++void ++acxmem_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len) ++{ ++ /* ++ * txdesc is the address on the ACX ++ */ ++ txdesc_t *txdesc = (txdesc_t*)tx_opaque; ++ txhostdesc_t *hostdesc1, *hostdesc2; ++ client_t *clt; ++ u16 rate_cur; ++ u8 Ctl_8, Ctl2_8; ++ u32 addr; ++ ++ FN_ENTER; ++ /* fw doesn't tx such packets anyhow */ ++ if (unlikely(len < WLAN_HDR_A3_LEN)) ++ goto end; ++ ++ hostdesc1 = get_txhostdesc(adev, txdesc); ++ /* modify flag status in separate variable to be able to write it back ++ * in one big swoop later (also in order to have less device memory ++ * accesses) */ ++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */ ++ ++ hostdesc2 = hostdesc1 + 1; ++ ++ /* DON'T simply set Ctl field to 0 here globally, ++ * it needs to maintain a consistent flag status (those are state flags!!), ++ * otherwise it may lead to severe disruption. Only set or reset particular ++ * flags at the exact moment this is needed... */ ++ ++ /* let chip do RTS/CTS handshaking before sending ++ * in case packet size exceeds threshold */ ++ if (len > adev->rts_threshold) ++ SET_BIT(Ctl2_8, DESC_CTL2_RTS); ++ else ++ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS); ++ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_3_AP: ++ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1); ++ break; ++ case ACX_MODE_2_STA: ++ clt = adev->ap_client; ++ break; ++#if 0 ++/* testing was done on acx111: */ ++ case ACX_MODE_MONITOR: ++ SET_BIT(Ctl2_8, 0 ++/* sends CTS to self before packet */ ++ + DESC_CTL2_SEQ /* don't increase sequence field */ ++/* not working (looks like good fcs is still added) */ ++ + DESC_CTL2_FCS /* don't add the FCS */ ++/* not tested */ ++ + DESC_CTL2_MORE_FRAG ++/* not tested */ ++ + DESC_CTL2_RETRY /* don't increase retry field */ ++/* not tested */ ++ + DESC_CTL2_POWER /* don't increase power mgmt. field */ ++/* no effect */ ++ + DESC_CTL2_WEP /* encrypt this frame */ ++/* not tested */ ++ + DESC_CTL2_DUR /* don't increase duration field */ ++ ); ++ /* fallthrough */ ++#endif ++ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */ ++ clt = NULL; ++ break; ++ } ++ ++ rate_cur = clt ? clt->rate_cur : adev->rate_bcast; ++ if (unlikely(!rate_cur)) { ++ printk("acx: driver bug! bad ratemask\n"); ++ goto end; ++ } ++ ++ /* used in tx cleanup routine for auto rate and accounting: */ ++ put_txcr(adev, txdesc, clt, rate_cur); ++ ++ write_slavemem16 (adev, (u32) &(txdesc->total_length), cpu_to_le16(len)); ++ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN); ++ if (IS_ACX111(adev)) { ++ /* note that if !txdesc->do_auto, txrate->cur ++ ** has only one nonzero bit */ ++ txdesc->u.r2.rate111 = cpu_to_le16( ++ rate_cur ++ /* WARNING: I was never able to make it work with prism54 AP. ++ ** It was falling down to 1Mbit where shortpre is not applicable, ++ ** and not working at all at "5,11 basic rates only" setting. ++ ** I even didn't see tx packets in radio packet capture. ++ ** Disabled for now --vda */ ++ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */ ++ ); ++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS ++ /* should add this to rate111 above as necessary */ ++ | (clt->pbcc511 ? RATE111_PBCC511 : 0) ++#endif ++ hostdesc1->length = cpu_to_le16(len); ++ } else { /* ACX100 */ ++ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100; ++ write_slavemem8 (adev, (u32) &(txdesc->u.r1.rate), rate_100); ++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS ++ if (clt->pbcc511) { ++ if (n == RATE100_5 || n == RATE100_11) ++ n |= RATE100_PBCC511; ++ } ++ ++ if (clt->shortpre && (clt->cur != RATE111_1)) ++ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */ ++#endif ++ /* set autodma and reclaim and 1st mpdu */ ++ SET_BIT(Ctl_8, DESC_CTL_FIRSTFRAG); ++ ++#if ACX_FRAGMENTATION ++ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */ ++#endif ++ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN); ++ ++ /* ++ * Since we're not using autodma copy the packet data to the acx now. ++ * Even host descriptors point to the packet header, and the odd indexed ++ * descriptor following points to the packet data. ++ * ++ * The first step is to find free memory in the ACX transmit buffers. ++ * They don't necessarily map one to one with the transmit queue entries, ++ * so search through them starting just after the last one used. ++ */ ++ addr = allocate_acx_txbuf_space (adev, len); ++ if (addr) { ++ chaincopy_to_slavemem (adev, addr, hostdesc1->data, len); ++ } ++ else { ++ /* ++ * Bummer. We thought we might have enough room in the transmit ++ * buffers to send this packet, but it turns out we don't. alloc_tx ++ * has already marked this transmit descriptor as HOSTOWN and ACXDONE, ++ * which means the ACX will hang when it gets to this descriptor unless ++ * we do something about it. Having a bubble in the transmit queue just ++ * doesn't seem to work, so we have to reset this transmit queue entry's ++ * state to its original value and back up our head pointer to point ++ * back to this entry. ++ */ ++ hostdesc1->length = 0; ++ hostdesc2->length = 0; ++ write_slavemem16 (adev, (u32) &(txdesc->total_length), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG); ++ adev->tx_head = ((u8*) txdesc - (u8*) adev->txdesc_start) / adev->txdesc_size; ++ goto end; ++ } ++ /* ++ * Tell the ACX where the packet is. ++ */ ++ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), addr); ++ ++ } ++ /* don't need to clean ack/rts statistics here, already ++ * done on descr cleanup */ ++ ++ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors ++ * are now owned by the acx100; do this as LAST operation */ ++ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN); ++ /* flush writes before we release hostdesc to the adapter here */ ++ //wmb(); ++ ++ /* write back modified flags */ ++ /* ++ * At this point Ctl_8 should just be FIRSTFRAG ++ */ ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl2_8),Ctl2_8); ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), Ctl_8); ++ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */ ++ ++ /* ++ * Update the queue indicator to say there's data on the first queue. ++ */ ++ acxmem_update_queue_indicator (adev, 0); ++ ++ /* flush writes before we tell the adapter that it's its turn now */ ++ mmiowb(); ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC); ++ write_flush(adev); ++ ++ /* log the packet content AFTER sending it, ++ * in order to not delay sending any further than absolutely needed ++ * Do separate logs for acx100/111 to have human-readable rates */ ++ if (unlikely(acx_debug & (L_XFER|L_DATA))) { ++ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc; ++ if (IS_ACX111(adev)) ++ printk("tx: pkt (%s): len %d " ++ "rate %04X%s status %u\n", ++ acx_get_packet_type_string(le16_to_cpu(fc)), len, ++ le16_to_cpu(txdesc->u.r2.rate111), ++ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "", ++ adev->status); ++ else ++ printk("tx: pkt (%s): len %d rate %03u%s status %u\n", ++ acx_get_packet_type_string(fc), len, ++ read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate)), ++ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "", ++ adev->status); ++ ++ if (acx_debug & L_DATA) { ++ printk("tx: 802.11 [%d]: ", len); ++ acx_dump_bytes(hostdesc1->data, len); ++ } ++ } ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_l_clean_txdesc ++** ++** This function resets the txdescs' status when the ACX100 ++** signals the TX done IRQ (txdescs have been processed), starting with ++** the pool index of the descriptor which we would use next, ++** in order to make sure that we can be as fast as possible ++** in filling new txdescs. ++** Everytime we get called we know where the next packet to be cleaned is. ++*/ ++ ++#if !ACX_DEBUG ++static inline void log_txbuffer(const acx_device_t *adev) {} ++#else ++static void ++log_txbuffer(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ int i; ++ u8 Ctl_8; ++ ++ /* no FN_ENTER here, we don't want that */ ++ /* no locks here, since it's entirely non-critical code */ ++ txdesc = adev->txdesc_start; ++ if (unlikely(!txdesc)) return; ++ printk("tx: desc->Ctl8's:"); ++ for (i = 0; i < TX_CNT; i++) { ++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ printk(" %02X", Ctl_8); ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ printk("\n"); ++} ++#endif ++ ++ ++static void ++handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger) ++{ ++ const char *err = "unknown error"; ++ ++ /* hmm, should we handle this as a mask ++ * of *several* bits? ++ * For now I think only caring about ++ * individual bits is ok... */ ++ switch (error) { ++ case 0x01: ++ err = "no Tx due to error in other fragment"; ++ adev->wstats.discard.fragment++; ++ break; ++ case 0x02: ++ err = "Tx aborted"; ++ adev->stats.tx_aborted_errors++; ++ break; ++ case 0x04: ++ err = "Tx desc wrong parameters"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x08: ++ err = "WEP key not found"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x10: ++ err = "MSDU lifetime timeout? - try changing " ++ "'iwconfig retry lifetime XXX'"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x20: ++ err = "excessive Tx retries due to either distance " ++ "too high or unable to Tx or Tx frame error - " ++ "try changing 'iwconfig txpower XXX' or " ++ "'sens'itivity or 'retry'"; ++ adev->wstats.discard.retries++; ++ /* Tx error 0x20 also seems to occur on ++ * overheating, so I'm not sure whether we ++ * actually want to do aggressive radio recalibration, ++ * since people maybe won't notice then that their hardware ++ * is slowly getting cooked... ++ * Or is it still a safe long distance from utter ++ * radio non-functionality despite many radio recalibs ++ * to final destructive overheating of the hardware? ++ * In this case we really should do recalib here... ++ * I guess the only way to find out is to do a ++ * potentially fatal self-experiment :-\ ++ * Or maybe only recalib in case we're using Tx ++ * rate auto (on errors switching to lower speed ++ * --> less heat?) or 802.11 power save mode? ++ * ++ * ok, just do it. */ ++ if (++adev->retry_errors_msg_ratelimit % 4 == 0) { ++ if (adev->retry_errors_msg_ratelimit <= 20) { ++ printk("%s: several excessive Tx " ++ "retry errors occurred, attempting " ++ "to recalibrate radio. Radio " ++ "drift might be caused by increasing " ++ "card temperature, please check the card " ++ "before it's too late!\n", ++ adev->ndev->name); ++ if (adev->retry_errors_msg_ratelimit == 20) ++ printk("disabling above message\n"); ++ } ++ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB); ++ } ++ break; ++ case 0x40: ++ err = "Tx buffer overflow"; ++ adev->stats.tx_fifo_errors++; ++ break; ++ case 0x80: ++ err = "DMA error"; ++ adev->wstats.discard.misc++; ++ break; ++ } ++ adev->stats.tx_errors++; ++ if (adev->stats.tx_errors <= 20) ++ printk("%s: tx error 0x%02X, buf %02u! (%s)\n", ++ adev->ndev->name, error, finger, err); ++ else ++ printk("%s: tx error 0x%02X, buf %02u!\n", ++ adev->ndev->name, error, finger); ++} ++ ++ ++unsigned int ++acxmem_l_clean_txdesc(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ unsigned finger; ++ int num_cleaned; ++ u16 r111; ++ u8 error, ack_failures, rts_failures, rts_ok, r100, Ctl_8; ++ u32 acxmem; ++ txdesc_t tmptxdesc; ++ ++ FN_ENTER; ++ ++ /* ++ * Set up a template descriptor for re-initialization. The only ++ * things that get set are Ctl_8 and the rate, and the rate defaults ++ * to 1Mbps. ++ */ ++ memset (&tmptxdesc, 0, sizeof (tmptxdesc)); ++ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG; ++ tmptxdesc.u.r1.rate = 0x0a; ++ ++ if (unlikely(acx_debug & L_DEBUG)) ++ log_txbuffer(adev); ++ ++ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail); ++ ++ /* We know first descr which is not free yet. We advance it as far ++ ** as we see correct bits set in following descs (if next desc ++ ** is NOT free, we shouldn't advance at all). We know that in ++ ** front of tx_tail may be "holes" with isolated free descs. ++ ** We will catch up when all intermediate descs will be freed also */ ++ ++ finger = adev->tx_tail; ++ num_cleaned = 0; ++ while (likely(finger != adev->tx_head)) { ++ txdesc = get_txdesc(adev, finger); ++ ++ /* If we allocated txdesc on tx path but then decided ++ ** to NOT use it, then it will be left as a free "bubble" ++ ** in the "allocated for tx" part of the ring. ++ ** We may meet it on the next ring pass here. */ ++ ++ /* stop if not marked as "tx finished" and "host owned" */ ++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ if ((Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN) ++ != DESC_CTL_ACXDONE_HOSTOWN) { ++ if (unlikely(!num_cleaned)) { /* maybe remove completely */ ++ log(L_BUFT, "clean_txdesc: tail isn't free. " ++ "tail:%d head:%d\n", ++ adev->tx_tail, adev->tx_head); ++ } ++ break; ++ } ++ ++ /* remember desc values... */ ++ error = read_slavemem8 (adev, (u32) &(txdesc->error)); ++ ack_failures = read_slavemem8 (adev, (u32) &(txdesc->ack_failures)); ++ rts_failures = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures)); ++ rts_ok = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok)); ++ r100 = read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate)); ++ r111 = le16_to_cpu(read_slavemem16 (adev, (u32) &(txdesc->u.r2.rate111))); ++ ++ /* need to check for certain error conditions before we ++ * clean the descriptor: we still need valid descr data here */ ++ if (unlikely(0x30 & error)) { ++ /* only send IWEVTXDROP in case of retry or lifetime exceeded; ++ * all other errors mean we screwed up locally */ ++ union iwreq_data wrqu; ++ wlan_hdr_t *hdr; ++ txhostdesc_t *hostdesc; ++ ++ hostdesc = get_txhostdesc(adev, txdesc); ++ hdr = (wlan_hdr_t *)hostdesc->data; ++ MAC_COPY(wrqu.addr.sa_data, hdr->a1); ++ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL); ++ } ++ ++ /* ++ * Free up the transmit data buffers ++ */ ++ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr)); ++ if (acxmem) { ++ reclaim_acx_txbuf_space (adev, acxmem); ++ } ++ ++ /* ...and free the desc by clearing all the fields ++ except the next pointer */ ++ copy_to_slavemem (adev, ++ (u32) &(txdesc->HostMemPtr), ++ (u8 *) &(tmptxdesc.HostMemPtr), ++ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc) ++ ); ++ ++ adev->tx_free++; ++ num_cleaned++; ++ ++ if ((adev->tx_free >= TX_START_QUEUE) ++ && (adev->status == ACX_STATUS_4_ASSOCIATED) ++ && (acx_queue_stopped(adev->ndev)) ++ ) { ++ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n", ++ adev->tx_free); ++ acx_wake_queue(adev->ndev, NULL); ++ } ++ ++ /* do error checking, rate handling and logging ++ * AFTER having done the work, it's faster */ ++ ++ /* do rate handling */ ++ if (adev->rate_auto) { ++ struct client *clt = get_txc(adev, txdesc); ++ if (clt) { ++ u16 cur = get_txr(adev, txdesc); ++ if (clt->rate_cur == cur) { ++ acx_l_handle_txrate_auto(adev, clt, ++ cur, /* intended rate */ ++ r100, r111, /* actually used rate */ ++ (error & 0x30), /* was there an error? */ ++ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free); ++ } ++ } ++ } ++ ++ if (unlikely(error)) ++ handle_tx_error(adev, error, finger); ++ ++ if (IS_ACX111(adev)) ++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n", ++ finger, ack_failures, rts_failures, rts_ok, r111); ++ else ++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n", ++ finger, ack_failures, rts_failures, rts_ok, r100); ++ ++ /* update pointer for descr to be cleaned next */ ++ finger = (finger + 1) % TX_CNT; ++ } ++ ++ /* remember last position */ ++ adev->tx_tail = finger; ++/* end: */ ++ FN_EXIT1(num_cleaned); ++ return num_cleaned; ++} ++ ++/* clean *all* Tx descriptors, and regardless of their previous state. ++ * Used for brute-force reset handling. */ ++void ++acxmem_l_clean_txdesc_emergency(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ int i; ++ u32 acxmem; ++ ++ FN_ENTER; ++ ++ for (i = 0; i < TX_CNT; i++) { ++ txdesc = get_txdesc(adev, i); ++ ++ /* free it */ ++ write_slavemem8 (adev, (u32) &(txdesc->ack_failures), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->error), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN); ++ ++ /* ++ * Clean up the memory allocated on the ACX for this transmit descriptor. ++ */ ++ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr)); ++ if (acxmem) { ++ reclaim_acx_txbuf_space (adev, acxmem); ++ } ++ ++ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), 0); ++ } ++ ++ adev->tx_free = TX_CNT; ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_create_tx_host_desc_queue ++*/ ++ ++static void* ++allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg) ++{ ++ void *ptr; ++ ptr = kmalloc (size, GFP_KERNEL); ++ /* ++ * The ACX can't use the physical address, so we'll have to fake it ++ * later and it might be handy to have the virtual address. ++ */ ++ *phy = (dma_addr_t) NULL; ++ ++ if (ptr) { ++ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n", ++ msg, (int)size, ptr, (unsigned long long)*phy); ++ memset(ptr, 0, size); ++ return ptr; ++ } ++ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n", ++ msg, (int)size); ++ return NULL; ++} ++ ++ ++/* ++ * In the generic slave memory access mode, most of the stuff in ++ * the txhostdesc_t is unused. It's only here because the rest of ++ * the ACX driver expects it to be since the PCI version uses indirect ++ * host memory organization with DMA. Since we're not using DMA the ++ * only use we have for the host descriptors is to store the packets ++ * on the way out. ++ */ ++static int ++acxmem_s_create_tx_host_desc_queue(acx_device_t *adev) ++{ ++ txhostdesc_t *hostdesc; ++ u8 *txbuf; ++ int i; ++ ++ FN_ENTER; ++ ++ /* allocate TX buffer */ ++ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS; ++ ++ adev->txbuf_start = allocate(adev, adev->txbuf_area_size, ++ &adev->txbuf_startphy, "txbuf_start"); ++ if (!adev->txbuf_start) ++ goto fail; ++ ++ /* allocate the TX host descriptor queue pool */ ++ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc); ++ ++ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size, ++ &adev->txhostdesc_startphy, "txhostdesc_start"); ++ if (!adev->txhostdesc_start) ++ goto fail; ++ ++ /* check for proper alignment of TX host descriptor pool */ ++ if ((long) adev->txhostdesc_start & 3) { ++ printk("acx: driver bug: dma alloc returns unaligned address\n"); ++ goto fail; ++ } ++ ++ hostdesc = adev->txhostdesc_start; ++ txbuf = adev->txbuf_start; ++ ++#if 0 ++/* Each tx buffer is accessed by hardware via ++** txdesc -> txhostdesc(s) -> txbuffer(s). ++** We use only one txhostdesc per txdesc, but it looks like ++** acx111 is buggy: it accesses second txhostdesc ++** (via hostdesc.desc_phy_next field) even if ++** txdesc->length == hostdesc->length and thus ++** entire packet was placed into first txhostdesc. ++** Due to this bug acx111 hangs unless second txhostdesc ++** has le16_to_cpu(hostdesc.length) = 3 (or larger) ++** Storing NULL into hostdesc.desc_phy_next ++** doesn't seem to help. ++** ++** Update: although it worked on Xterasys XN-2522g ++** with len=3 trick, WG311v2 is even more bogus, doesn't work. ++** Keeping this code (#ifdef'ed out) for documentational purposes. ++*/ ++ for (i = 0; i < TX_CNT*2; i++) { ++ hostdesc_phy += sizeof(*hostdesc); ++ if (!(i & 1)) { ++ hostdesc->data_phy = cpu2acx(txbuf_phy); ++ /* hostdesc->data_offset = ... */ ++ /* hostdesc->reserved = ... */ ++ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN); ++ /* hostdesc->length = ... */ ++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy); ++ hostdesc->pNext = ptr2acx(NULL); ++ /* hostdesc->Status = ... */ ++ /* below: non-hardware fields */ ++ hostdesc->data = txbuf; ++ ++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS; ++ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS; ++ } else { ++ /* hostdesc->data_phy = ... */ ++ /* hostdesc->data_offset = ... */ ++ /* hostdesc->reserved = ... */ ++ /* hostdesc->Ctl_16 = ... */ ++ hostdesc->length = cpu_to_le16(3); /* bug workaround */ ++ /* hostdesc->desc_phy_next = ... */ ++ /* hostdesc->pNext = ... */ ++ /* hostdesc->Status = ... */ ++ /* below: non-hardware fields */ ++ /* hostdesc->data = ... */ ++ } ++ hostdesc++; ++ } ++#endif ++/* We initialize two hostdescs so that they point to adjacent ++** memory areas. Thus txbuf is really just a contiguous memory area */ ++ for (i = 0; i < TX_CNT*2; i++) { ++ /* ->data is a non-hardware field: */ ++ hostdesc->data = txbuf; ++ ++ if (!(i & 1)) { ++ txbuf += WLAN_HDR_A3_LEN; ++ } else { ++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN; ++ } ++ hostdesc++; ++ } ++ hostdesc--; ++ ++ FN_EXIT1(OK); ++ return OK; ++fail: ++ printk("acx: create_tx_host_desc_queue FAILED\n"); ++ /* dealloc will be done by free function on error case */ ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*************************************************************** ++** acxmem_s_create_rx_host_desc_queue ++*/ ++/* the whole size of a data buffer (header plus data body) ++ * plus 32 bytes safety offset at the end */ ++#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32) ++ ++static int ++acxmem_s_create_rx_host_desc_queue(acx_device_t *adev) ++{ ++ rxhostdesc_t *hostdesc; ++ rxbuffer_t *rxbuf; ++ int i; ++ ++ FN_ENTER; ++ ++ /* allocate the RX host descriptor queue pool */ ++ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc); ++ ++ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size, ++ &adev->rxhostdesc_startphy, "rxhostdesc_start"); ++ if (!adev->rxhostdesc_start) ++ goto fail; ++ ++ /* check for proper alignment of RX host descriptor pool */ ++ if ((long) adev->rxhostdesc_start & 3) { ++ printk("acx: driver bug: dma alloc returns unaligned address\n"); ++ goto fail; ++ } ++ ++ /* allocate Rx buffer pool which will be used by the acx ++ * to store the whole content of the received frames in it */ ++ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE; ++ ++ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size, ++ &adev->rxbuf_startphy, "rxbuf_start"); ++ if (!adev->rxbuf_start) ++ goto fail; ++ ++ rxbuf = adev->rxbuf_start; ++ hostdesc = adev->rxhostdesc_start; ++ ++ /* don't make any popular C programming pointer arithmetic mistakes ++ * here, otherwise I'll kill you... ++ * (and don't dare asking me why I'm warning you about that...) */ ++ for (i = 0; i < RX_CNT; i++) { ++ hostdesc->data = rxbuf; ++ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE); ++ rxbuf++; ++ hostdesc++; ++ } ++ hostdesc--; ++ FN_EXIT1(OK); ++ return OK; ++fail: ++ printk("acx: create_rx_host_desc_queue FAILED\n"); ++ /* dealloc will be done by free function on error case */ ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*************************************************************** ++** acxmem_s_create_hostdesc_queues ++*/ ++int ++acxmem_s_create_hostdesc_queues(acx_device_t *adev) ++{ ++ int result; ++ result = acxmem_s_create_tx_host_desc_queue(adev); ++ if (OK != result) return result; ++ result = acxmem_s_create_rx_host_desc_queue(adev); ++ return result; ++} ++ ++ ++/*************************************************************** ++** acxmem_create_tx_desc_queue ++*/ ++static void ++acxmem_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start) ++{ ++ txdesc_t *txdesc; ++ u32 clr; ++ int i; ++ ++ FN_ENTER; ++ ++ if (IS_ACX100(adev)) ++ adev->txdesc_size = sizeof(*txdesc); ++ else ++ /* the acx111 txdesc is 4 bytes larger */ ++ adev->txdesc_size = sizeof(*txdesc) + 4; ++ ++ /* ++ * This refers to an ACX address, not one of ours ++ */ ++ adev->txdesc_start = (txdesc_t *) tx_queue_start; ++ ++ log(L_DEBUG, "adev->txdesc_start=%p\n", ++ adev->txdesc_start); ++ ++ adev->tx_free = TX_CNT; ++ /* done by memset: adev->tx_head = 0; */ ++ /* done by memset: adev->tx_tail = 0; */ ++ txdesc = adev->txdesc_start; ++ ++ if (IS_ACX111(adev)) { ++ /* ACX111 has a preinitialized Tx buffer! */ ++ /* loop over whole send pool */ ++ /* FIXME: do we have to do the hostmemptr stuff here?? */ ++ for (i = 0; i < TX_CNT; i++) { ++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN; ++ /* reserve two (hdr desc and payload desc) */ ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ } else { ++ /* ACX100 Tx buffer needs to be initialized by us */ ++ /* clear whole send pool. sizeof is safe here (we are acx100) */ ++ ++ /* ++ * adev->txdesc_start refers to device memory, so we can't write ++ * directly to it. ++ */ ++ clr = (u32) adev->txdesc_start; ++ while (clr < (u32) adev->txdesc_start + (TX_CNT * sizeof(*txdesc))) { ++ write_slavemem32 (adev, clr, 0); ++ clr += 4; ++ } ++ ++ /* loop over whole send pool */ ++ for (i = 0; i < TX_CNT; i++) { ++ log(L_DEBUG, "configure card tx descriptor: 0x%p, " ++ "size: 0x%X\n", txdesc, adev->txdesc_size); ++ ++ /* initialise ctl */ ++ /* ++ * No auto DMA here ++ */ ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), ++ (u8) (DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG)); ++ /* done by memset(0): txdesc->Ctl2_8 = 0; */ ++ ++ /* point to next txdesc */ ++ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc), ++ (u32) cpu_to_le32 ((u8 *) txdesc + adev->txdesc_size)); ++ ++ /* go to the next one */ ++ /* ++ is safe here (we are acx100) */ ++ txdesc++; ++ } ++ /* go back to the last one */ ++ txdesc--; ++ /* and point to the first making it a ring buffer */ ++ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc), ++ (u32) cpu_to_le32 (tx_queue_start)); ++ } ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxmem_create_rx_desc_queue ++*/ ++static void ++acxmem_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start) ++{ ++ rxdesc_t *rxdesc; ++ u32 mem_offs; ++ int i; ++ ++ FN_ENTER; ++ ++ /* done by memset: adev->rx_tail = 0; */ ++ ++ /* ACX111 doesn't need any further config: preconfigures itself. ++ * Simply print ring buffer for debugging */ ++ if (IS_ACX111(adev)) { ++ /* rxdesc_start already set here */ ++ ++ adev->rxdesc_start = (rxdesc_t *) rx_queue_start; ++ ++ rxdesc = adev->rxdesc_start; ++ for (i = 0; i < RX_CNT; i++) { ++ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc); ++ rxdesc = adev->rxdesc_start = (rxdesc_t *) ++ acx2cpu(rxdesc->pNextDesc); ++ } ++ } else { ++ /* we didn't pre-calculate rxdesc_start in case of ACX100 */ ++ /* rxdesc_start should be right AFTER Tx pool */ ++ adev->rxdesc_start = (rxdesc_t *) ++ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t))); ++ /* NB: sizeof(txdesc_t) above is valid because we know ++ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere! ++ ** acx111's txdesc is larger! */ ++ ++ mem_offs = (u32) adev->rxdesc_start; ++ while (mem_offs < (u32) adev->rxdesc_start + (RX_CNT * sizeof (*rxdesc))) { ++ write_slavemem32 (adev, mem_offs, 0); ++ mem_offs += 4; ++ } ++ ++ /* loop over whole receive pool */ ++ rxdesc = adev->rxdesc_start; ++ for (i = 0; i < RX_CNT; i++) { ++ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc); ++ /* point to next rxdesc */ ++ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc), ++ (u32) cpu_to_le32 ((u8 *) rxdesc + sizeof(*rxdesc))); ++ /* go to the next one */ ++ rxdesc++; ++ } ++ /* go to the last one */ ++ rxdesc--; ++ ++ /* and point to the first making it a ring buffer */ ++ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc), ++ (u32) cpu_to_le32 (rx_queue_start)); ++ } ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxmem_create_desc_queues ++*/ ++void ++acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start) ++{ ++ u32 *p; ++ int i; ++ ++ acxmem_create_tx_desc_queue(adev, tx_queue_start); ++ acxmem_create_rx_desc_queue(adev, rx_queue_start); ++ p = (u32 *) adev->acx_queue_indicator; ++ for (i = 0; i < 4; i++) { ++ write_slavemem32 (adev, (u32) p, 0); ++ p++; ++ } ++} ++ ++ ++/*************************************************************** ++** acxmem_s_proc_diag_output ++*/ ++char* ++acxmem_s_proc_diag_output(char *p, acx_device_t *adev) ++{ ++ const char *rtl, *thd, *ttl; ++ txdesc_t *txdesc; ++ u8 Ctl_8; ++ rxdesc_t *rxdesc; ++ int i; ++ u32 tmp; ++ txdesc_t txd; ++ u8 buf[0x200]; ++ int j, k; ++ ++ FN_ENTER; ++ ++#if DUMP_MEM_DURING_DIAG > 0 ++ dump_acxmem (adev, 0, 0x10000); ++ panic ("dump finished"); ++#endif ++ ++ p += sprintf(p, "** Rx buf **\n"); ++ rxdesc = adev->rxdesc_start; ++ if (rxdesc) for (i = 0; i < RX_CNT; i++) { ++ rtl = (i == adev->rx_tail) ? " [tail]" : ""; ++ Ctl_8 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8)); ++ if (Ctl_8 & DESC_CTL_HOSTOWN) ++ p += sprintf(p, "%02u (%02x) FULL%s\n", i, Ctl_8, rtl); ++ else ++ p += sprintf(p, "%02u (%02x) empty%s\n", i, Ctl_8, rtl); ++ rxdesc++; ++ } ++ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free, ++ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running"); ++ ++ p += sprintf(p, "** Tx buf %d blocks total, %d available, free list head %04x\n", ++ adev->acx_txbuf_numblocks, adev->acx_txbuf_blocks_free, adev->acx_txbuf_free); ++ txdesc = adev->txdesc_start; ++ if (txdesc) { ++ for (i = 0; i < TX_CNT; i++) { ++ thd = (i == adev->tx_head) ? " [head]" : ""; ++ ttl = (i == adev->tx_tail) ? " [tail]" : ""; ++ copy_from_slavemem (adev, (u8 *) &txd, (u32) txdesc, sizeof (txd)); ++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ if (Ctl_8 & DESC_CTL_ACXDONE) ++ p += sprintf(p, "%02u ready to free (%02X)%s%s", i, Ctl_8, thd, ttl); ++ else if (Ctl_8 & DESC_CTL_HOSTOWN) ++ p += sprintf(p, "%02u available (%02X)%s%s", i, Ctl_8, thd, ttl); ++ else ++ p += sprintf(p, "%02u busy (%02X)%s%s", i, Ctl_8, thd, ttl); ++ tmp = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr)); ++ if (tmp) { ++ p += sprintf (p, " %04x", tmp); ++ while ((tmp = read_slavemem32 (adev, (u32) tmp)) != 0x02000000) { ++ tmp <<= 5; ++ p += sprintf (p, " %04x", tmp); ++ } ++ } ++ p += sprintf (p, "\n"); ++ p += sprintf (p, " %04x: %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %02x %02x %02x %02x\n" ++ "%02x %02x %02x %02x %04x\n", ++ (u32) txdesc, ++ txd.pNextDesc.v, txd.HostMemPtr.v, txd.AcxMemPtr.v, txd.tx_time, ++ txd.total_length, txd.Reserved, ++ txd.dummy[0], txd.dummy[1], txd.dummy[2], txd.dummy[3], ++ txd.Ctl_8, txd.Ctl2_8, txd.error, txd.ack_failures, ++ txd.u.rts.rts_failures, txd.u.rts.rts_ok, txd.u.r1.rate, txd.u.r1.queue_ctrl, ++ txd.queue_info ++ ); ++ if (txd.AcxMemPtr.v) { ++ copy_from_slavemem (adev, buf, txd.AcxMemPtr.v, sizeof (buf)); ++ for (j = 0; (j < txd.total_length) && (j<(sizeof(buf)-4)); j+=16) { ++ p += sprintf (p, " "); ++ for (k = 0; (k < 16) && (j+k < txd.total_length); k++) { ++ p += sprintf (p, " %02x", buf[j+k+4]); ++ } ++ p += sprintf (p, "\n"); ++ } ++ } ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ } ++ ++ p += sprintf(p, ++ "\n" ++ "** Generic slave data **\n" ++ "irq_mask 0x%04x irq_status 0x%04x irq on acx 0x%04x\n" ++ "txbuf_start 0x%p, txbuf_area_size %u\n" ++ "txdesc_size %u, txdesc_start 0x%p\n" ++ "txhostdesc_start 0x%p, txhostdesc_area_size %u\n" ++ "txbuf start 0x%04x, txbuf size %d\n" ++ "rxdesc_start 0x%p\n" ++ "rxhostdesc_start 0x%p, rxhostdesc_area_size %u\n" ++ "rxbuf_start 0x%p, rxbuf_area_size %u\n", ++ adev->irq_mask, adev->irq_status, read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES), ++ adev->txbuf_start, adev->txbuf_area_size, ++ adev->txdesc_size, adev->txdesc_start, ++ adev->txhostdesc_start, adev->txhostdesc_area_size, ++ adev->acx_txbuf_start, adev->acx_txbuf_numblocks * adev->memblocksize, ++ adev->rxdesc_start, ++ adev->rxhostdesc_start, adev->rxhostdesc_area_size, ++ adev->rxbuf_start, adev->rxbuf_area_size); ++ FN_EXIT0; ++ return p; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acxmem_proc_eeprom_output(char *buf, acx_device_t *adev) ++{ ++ char *p = buf; ++ int i; ++ ++ FN_ENTER; ++ ++ for (i = 0; i < 0x400; i++) { ++ acxmem_read_eeprom_byte(adev, i, p++); ++ } ++ ++ FN_EXIT1(p - buf); ++ return p - buf; ++} ++ ++ ++/*********************************************************************** ++*/ ++void ++acxmem_set_interrupt_mask(acx_device_t *adev) ++{ ++ if (IS_ACX111(adev)) { ++ adev->irq_mask = (u16) ~(0 ++ | HOST_INT_RX_DATA ++ | HOST_INT_TX_COMPLETE ++ /* | HOST_INT_TX_XFER */ ++ /* | HOST_INT_RX_COMPLETE */ ++ /* | HOST_INT_DTIM */ ++ /* | HOST_INT_BEACON */ ++ /* | HOST_INT_TIMER */ ++ /* | HOST_INT_KEY_NOT_FOUND */ ++ | HOST_INT_IV_ICV_FAILURE ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ | HOST_INT_OVERFLOW ++ /* | HOST_INT_PROCESS_ERROR */ ++ | HOST_INT_SCAN_COMPLETE ++ | HOST_INT_FCS_THRESHOLD ++ | HOST_INT_UNKNOWN ++ ); ++ /* Or else acx100 won't signal cmd completion, right? */ ++ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */ ++ } else { ++ adev->irq_mask = (u16) ~(0 ++ | HOST_INT_RX_DATA ++ | HOST_INT_TX_COMPLETE ++ /* | HOST_INT_TX_XFER */ ++ /* | HOST_INT_RX_COMPLETE */ ++ /* | HOST_INT_DTIM */ ++ /* | HOST_INT_BEACON */ ++ /* | HOST_INT_TIMER */ ++ /* | HOST_INT_KEY_NOT_FOUND */ ++ /* | HOST_INT_IV_ICV_FAILURE */ ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ /* | HOST_INT_OVERFLOW */ ++ /* | HOST_INT_PROCESS_ERROR */ ++ | HOST_INT_SCAN_COMPLETE ++ /* | HOST_INT_FCS_THRESHOLD */ ++ /* | HOST_INT_BEACON_MISSED */ ++ ); ++ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */ ++ } ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm) ++{ ++ struct acx111_ie_tx_level tx_level; ++ ++ /* since it can be assumed that at least the Maxim radio has a ++ * maximum power output of 20dBm and since it also can be ++ * assumed that these values drive the DAC responsible for ++ * setting the linear Tx level, I'd guess that these values ++ * should be the corresponding linear values for a dBm value, ++ * in other words: calculate the values from that formula: ++ * Y [dBm] = 10 * log (X [mW]) ++ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm) ++ * and you're done... ++ * Hopefully that's ok, but you never know if we're actually ++ * right... (especially since Windows XP doesn't seem to show ++ * actual Tx dBm values :-P) */ ++ ++ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the ++ * values are EXACTLY mW!!! Not sure about RFMD and others, ++ * though... */ ++ static const u8 dbm2val_maxim[21] = { ++ 63, 63, 63, 62, ++ 61, 61, 60, 60, ++ 59, 58, 57, 55, ++ 53, 50, 47, 43, ++ 38, 31, 23, 13, ++ 0 ++ }; ++ static const u8 dbm2val_rfmd[21] = { ++ 0, 0, 0, 1, ++ 2, 2, 3, 3, ++ 4, 5, 6, 8, ++ 10, 13, 16, 20, ++ 25, 32, 41, 50, ++ 63 ++ }; ++ const u8 *table; ++ ++ switch (adev->radio_type) { ++ case RADIO_MAXIM_0D: ++ table = &dbm2val_maxim[0]; ++ break; ++ case RADIO_RFMD_11: ++ case RADIO_RALINK_15: ++ table = &dbm2val_rfmd[0]; ++ break; ++ default: ++ printk("%s: unknown/unsupported radio type, " ++ "cannot modify tx power level yet!\n", ++ adev->ndev->name); ++ return NOT_OK; ++ } ++ /* ++ * The hx4700 EEPROM, at least, only supports 1 power setting. The configure ++ * routine matches the PA bias with the gain, so just use its default value. ++ * The values are: 0x2b for the gain and 0x03 for the PA bias. The firmware ++ * writes the gain level to the Tx gain control DAC and the PA bias to the Maxim ++ * radio's PA bias register. The firmware limits itself to 0 - 64 when writing to the ++ * gain control DAC. ++ * ++ * Physically between the ACX and the radio, higher Tx gain control DAC values result ++ * in less power output; 0 volts to the Maxim radio results in the highest output power ++ * level, which I'm assuming matches up with 0 in the Tx Gain DAC register. ++ * ++ * Although there is only the 1 power setting, one of the radio firmware functions adjusts ++ * the transmit power level up and down. That function is called by the ACX FIQ handler ++ * under certain conditions. ++ */ ++ tx_level.level = 1; ++ //return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL); ++ ++ printk("%s: changing radio power level to %u dBm (%u)\n", ++ adev->ndev->name, level_dbm, table[level_dbm]); ++ acxmem_s_write_phy_reg(adev, 0x11, table[level_dbm]); ++ ++ return 0; ++} ++ ++void acxmem_e_release(struct device *dev) { ++} ++ ++/*********************************************************************** ++** acx_cs part ++** ++** called by pcmcia card service ++*/ ++ ++/* ++ The event() function is this driver's Card Services event handler. ++ It will be called by Card Services when an appropriate card status ++ event is received. The config() and release() entry points are ++ used to configure or release a socket, in response to card ++ insertion and ejection events. They are invoked from the acx_cs ++ event handler. ++*/ ++ ++static int acx_cs_config(struct pcmcia_device *link); ++static void acx_cs_release(struct pcmcia_device *link); ++ ++/* ++ The attach() and detach() entry points are used to create and destroy ++ "instances" of the driver, where each instance represents everything ++ needed to manage one actual PCMCIA card. ++*/ ++ ++static void acx_cs_detach(struct pcmcia_device *p_dev); ++ ++/* ++ You'll also need to prototype all the functions that will actually ++ be used to talk to your device. See 'pcmem_cs' for a good example ++ of a fully self-sufficient driver; the other drivers rely more or ++ less on other parts of the kernel. ++*/ ++ ++/* ++ A linked list of "instances" of the acxnet device. Each actual ++ PCMCIA card corresponds to one device instance, and is described ++ by one struct pcmcia_device structure (defined in ds.h). ++ ++ You may not want to use a linked list for this -- for example, the ++ memory card driver uses an array of struct pcmcia_device pointers, where minor ++ device numbers are used to derive the corresponding array index. ++*/ ++ ++/* ++ A driver needs to provide a dev_node_t structure for each device ++ on a card. In some cases, there is only one device per card (for ++ example, ethernet cards, modems). In other cases, there may be ++ many actual or logical devices (SCSI adapters, memory cards with ++ multiple partitions). The dev_node_t structures need to be kept ++ in a linked list starting at the 'dev' field of a struct pcmcia_device ++ structure. We allocate them in the card's private data structure, ++ because they generally shouldn't be allocated dynamically. ++ ++ In this case, we also provide a flag to indicate if a device is ++ "stopped" due to a power management event, or card ejection. The ++ device IO routines can use a flag like this to throttle IO to a ++ card that is not ready to accept it. ++*/ ++ ++ ++/*====================================================================== ++ ++ acx_attach() creates an "instance" of the driver, allocating ++ local data structures for one device. The device is registered ++ with Card Services. ++ ++ The dev_link structure is initialized, but we don't actually ++ configure the card at this point -- we wait until we receive a ++ card insertion event. ++ ++ ======================================================================*/ ++ ++static int acx_cs_probe(struct pcmcia_device *link) ++{ ++ local_info_t *local; ++ struct net_device *ndev; ++ ++ DEBUG(0, "acx_attach()\n"); ++ ++ ndev = alloc_netdev(sizeof(acx_device_t), "wlan%d", dummy_netdev_init); ++ if (!ndev) { ++ printk("acx: no memory for netdevice struct\n"); ++ return -ENOMEM; ++ } ++ ++ /* Interrupt setup */ ++ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; ++ link->irq.IRQInfo1 = IRQ_LEVEL_ID; ++ link->irq.Handler = acxmem_i_interrupt; ++ link->irq.Instance = ndev; ++ ++ /* ++ General socket configuration defaults can go here. In this ++ client, we assume very little, and rely on the CIS for almost ++ everything. In most clients, many details (i.e., number, sizes, ++ and attributes of IO windows) are fixed by the nature of the ++ device, and can be hard-wired here. ++ */ ++ link->conf.Attributes = CONF_ENABLE_IRQ; ++ link->conf.IntType = INT_MEMORY_AND_IO; ++ link->conf.Present = PRESENT_OPTION | PRESENT_COPY; ++ ++ /* Allocate space for private device-specific data */ ++ local = kzalloc(sizeof(local_info_t), GFP_KERNEL); ++ if (!local) { ++ printk(KERN_ERR "acx_cs: no memory for new device\n"); ++ return -ENOMEM; ++ } ++ local->ndev = ndev; ++ ++ link->priv = local; ++ ++ return acx_cs_config(link); ++} /* acx_attach */ ++ ++/*====================================================================== ++ ++ This deletes a driver "instance". The device is de-registered ++ with Card Services. If it has been released, all local data ++ structures are freed. Otherwise, the structures will be freed ++ when the device is released. ++ ++ ======================================================================*/ ++ ++static void acx_cs_detach(struct pcmcia_device *link) ++{ ++ DEBUG(0, "acx_detach(0x%p)\n", link); ++ ++ ++ if ( ((local_info_t*)link->priv)->ndev ) { ++ acxmem_e_close( ((local_info_t*)link->priv)->ndev ); ++ } ++ ++ acx_cs_release(link); ++ ++ ((local_info_t*)link->priv)->ndev = NULL; ++ ++ kfree(link->priv); ++} /* acx_detach */ ++ ++/*====================================================================== ++ ++ acx_config() is scheduled to run after a CARD_INSERTION event ++ is received, to configure the PCMCIA socket, and to make the ++ device available to the system. ++ ++ ======================================================================*/ ++ ++#define CS_CHECK(fn, ret) \ ++do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) ++ ++static int acx_cs_config(struct pcmcia_device *link) ++{ ++ tuple_t tuple; ++ cisparse_t parse; ++ local_info_t *local = link->priv; ++ int last_fn, last_ret; ++ u_char buf[64]; ++ win_req_t req; ++ memreq_t map; ++// int i; ++// acx_device_t *adev; ++ ++// adev = (acx_device_t *)link->priv; ++ ++ DEBUG(0, "acx_cs_config(0x%p)\n", link); ++ ++ /* ++ In this loop, we scan the CIS for configuration table entries, ++ each of which describes a valid card configuration, including ++ voltage, IO window, memory window, and interrupt settings. ++ ++ We make no assumptions about the card to be configured: we use ++ just the information available in the CIS. In an ideal world, ++ this would work for any PCMCIA card, but it requires a complete ++ and accurate CIS. In practice, a driver usually "knows" most of ++ these things without consulting the CIS, and most client drivers ++ will only use the CIS to fill in implementation-defined details. ++ */ ++ tuple.Attributes = 0; ++ tuple.TupleData = (cisdata_t *)buf; ++ tuple.TupleDataMax = sizeof(buf); ++ tuple.TupleOffset = 0; ++ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; ++ ++ /* don't trust the CIS on this; Linksys got it wrong */ ++ //link->conf.Present = 0x63; ++ ++ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple)); ++ while (1) { ++ cistpl_cftable_entry_t dflt = { 0 }; ++ cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); ++ if (pcmcia_get_tuple_data(link, &tuple) != 0 || ++ pcmcia_parse_tuple(link, &tuple, &parse) != 0) ++ goto next_entry; ++ ++ if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg; ++ if (cfg->index == 0) goto next_entry; ++ link->conf.ConfigIndex = cfg->index; ++ ++ /* Does this card need audio output? */ ++ if (cfg->flags & CISTPL_CFTABLE_AUDIO) { ++ link->conf.Attributes |= CONF_ENABLE_SPKR; ++ link->conf.Status = CCSR_AUDIO_ENA; ++ } ++ ++ /* Use power settings for Vcc and Vpp if present */ ++ /* Note that the CIS values need to be rescaled */ ++ if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM)) ++ link->conf.Vpp = ++ cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; ++ else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM)) ++ link->conf.Vpp = ++ dflt.vpp1.param[CISTPL_POWER_VNOM]/10000; ++ ++ /* Do we need to allocate an interrupt? */ ++ if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) ++ link->conf.Attributes |= CONF_ENABLE_IRQ; ++ if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) { ++ cistpl_mem_t *mem = ++ (cfg->mem.nwin) ? &cfg->mem : &dflt.mem; ++// req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_AM|WIN_ENABLE|WIN_USE_WAIT; ++ req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE|WIN_USE_WAIT; ++ req.Base = mem->win[0].host_addr; ++ req.Size = mem->win[0].len; ++ req.Size=0x1000; ++ req.AccessSpeed = 0; ++ if (pcmcia_request_window(&link, &req, &link->win) != 0) ++ goto next_entry; ++ map.Page = 0; map.CardOffset = mem->win[0].card_addr; ++ if (pcmcia_map_mem_page(link->win, &map) != 0) ++ goto next_entry; ++ else ++ printk(KERN_INFO "MEMORY WINDOW FOUND!!!\n"); ++ } ++ /* If we got this far, we're cool! */ ++ break; ++ ++ next_entry: ++ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple)); ++ } ++ ++ if (link->conf.Attributes & CONF_ENABLE_IRQ) { ++ printk(KERN_INFO "requesting Irq...\n"); ++ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); ++ } ++ ++ /* ++ This actually configures the PCMCIA socket -- setting up ++ the I/O windows and the interrupt mapping, and putting the ++ card and host interface into "Memory and IO" mode. ++ */ ++ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); ++ DEBUG(0,"RequestConfiguration OK\n"); ++ ++ ++ memwin.Base=req.Base; ++ memwin.Size=req.Size; ++ ++ acx_init_netdev(local->ndev, &link->dev, memwin.Base, memwin.Size, link->irq.AssignedIRQ); ++ ++#if 1 ++ /* ++ At this point, the dev_node_t structure(s) need to be ++ initialized and arranged in a linked list at link->dev_node. ++ */ ++ strcpy(local->node.dev_name, local->ndev->name ); ++ local->node.major = local->node.minor = 0; ++ link->dev_node = &local->node; ++ ++ /* Finally, report what we've done */ ++ printk(KERN_INFO "%s: index 0x%02x: ", ++ local->ndev->name, link->conf.ConfigIndex); ++#endif ++ if (link->conf.Attributes & CONF_ENABLE_IRQ) ++ printk("irq %d", link->irq.AssignedIRQ); ++ if (link->io.NumPorts1) ++ printk(", io 0x%04x-0x%04x", link->io.BasePort1, ++ link->io.BasePort1+link->io.NumPorts1-1); ++ if (link->io.NumPorts2) ++ printk(" & 0x%04x-0x%04x", link->io.BasePort2, ++ link->io.BasePort2+link->io.NumPorts2-1); ++ if (link->win) ++ printk(", mem 0x%06lx-0x%06lx\n", req.Base, ++ req.Base+req.Size-1); ++ return 0; ++ ++ cs_failed: ++ cs_error(link, last_fn, last_ret); ++ acx_cs_release(link); ++ return -ENODEV; ++} /* acx_config */ ++ ++/*====================================================================== ++ ++ After a card is removed, acx_release() will unregister the ++ device, and release the PCMCIA configuration. If the device is ++ still open, this will be postponed until it is closed. ++ ++ ======================================================================*/ ++ ++static void acx_cs_release(struct pcmcia_device *link) ++{ ++ DEBUG(0, "acx_release(0x%p)\n", link); ++ acxmem_e_remove(link); ++ pcmcia_disable_device(link); ++} ++ ++static int acx_cs_suspend(struct pcmcia_device *link) ++{ ++ local_info_t *local = link->priv; ++ ++ pm_message_t state; ++ acxmem_e_suspend ( local->ndev, state); ++ /* Already done in suspend ++ * netif_device_detach(local->ndev); */ ++ ++ return 0; ++} ++ ++static int acx_cs_resume(struct pcmcia_device *link) ++{ ++ local_info_t *local = link->priv; ++ ++ FN_ENTER; ++ resume_ndev = local->ndev; ++ ++ schedule_work( &fw_resume_work ); ++ ++ /* Already done in suspend ++ if (link->open) { ++ // do we need reset for ACX, if so what function nane is ? ++ //reset_acx_card(local->eth_dev); ++ netif_device_attach(local->ndev); ++ } */ ++ ++ FN_EXIT0; ++ return 0; ++} ++ ++static struct pcmcia_device_id acx_ids[] = { ++ PCMCIA_DEVICE_MANF_CARD(0x0097, 0x8402), ++ PCMCIA_DEVICE_MANF_CARD(0x0250, 0xb001), ++ PCMCIA_DEVICE_NULL, ++}; ++MODULE_DEVICE_TABLE(pcmcia, acx_ids); ++ ++static struct pcmcia_driver acx_driver = { ++ .owner = THIS_MODULE, ++ .drv = { ++ .name = "acx_cs", ++ }, ++ .probe = acx_cs_probe, ++ .remove = acx_cs_detach, ++ .id_table = acx_ids, ++ .suspend = acx_cs_suspend, ++ .resume = acx_cs_resume, ++}; ++ ++int acx_cs_init(void) ++{ ++ /* return success if at least one succeeded */ ++ DEBUG(0, "acxcs_init()\n"); ++ return pcmcia_register_driver(&acx_driver); ++} ++ ++void acx_cs_cleanup(void) ++{ ++ pcmcia_unregister_driver(&acx_driver); ++} ++ ++/* ++ This program is free software; you can redistribute it and/or ++ modify it under the terms of the GNU General Public License ++ as published by the Free Software Foundation; either version 2 ++ of the License, or (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ In addition: ++ ++ Redistribution and use in source and binary forms, with or without ++ modification, are permitted provided that the following conditions ++ are met: ++ ++ 1. Redistributions of source code must retain the above copyright ++ notice, this list of conditions and the following disclaimer. ++ 2. Redistributions in binary form must reproduce the above copyright ++ notice, this list of conditions and the following disclaimer in the ++ documentation and/or other materials provided with the distribution. ++ 3. The name of the author may not be used to endorse or promote ++ products derived from this software without specific prior written ++ permission. ++ ++ THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR ++ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED ++ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ++ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, ++ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ++ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR ++ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ++ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, ++ STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING ++ IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ++ POSSIBILITY OF SUCH DAMAGE. ++*/ ++ ++MODULE_DESCRIPTION( "ACX Cardbus Driver" ); ++MODULE_LICENSE( "GPL" ); ++ +Index: linux-2.6.23/drivers/net/wireless/acx/htcsable_acx.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/htcsable_acx.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,118 @@ ++/* ++ * WLAN (TI TNETW1100B) support in the HTC Sable ++ * ++ * Copyright (c) 2006 SDG Systems, LLC ++ * ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file COPYING in the main directory of this archive for ++ * more details. ++ * ++ * 28-March-2006 Todd Blumer <todd@sdgsystems.com> ++ */ ++ ++ ++#include <linux/kernel.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++ ++#include <asm/hardware.h> ++ ++#include <asm/arch/pxa-regs.h> ++#include <linux/mfd/asic3_base.h> ++#include <asm/arch/htcsable-gpio.h> ++#include <asm/arch/htcsable-asic.h> ++#include <asm/io.h> ++ ++#include "acx_hw.h" ++ ++#define WLAN_BASE PXA_CS2_PHYS ++ ++/* ++off: b15 c8 d3 ++on: d3 c8 b5 b5- ++*/ ++ ++#define GPIO_NR_HTCSABLE_ACX111 111 ++ ++static int ++htcsable_wlan_stop( void ); ++ ++static int ++htcsable_wlan_start( void ) ++{ ++ printk( "htcsable_wlan_start\n" ); ++ ++ /*asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 0);*/ ++ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_PWR_3, 1<<GPIOC_ACX_PWR_3); /* related to acx */ ++ SET_HTCSABLE_GPIO(ACX111, 1); ++ asic3_set_gpio_out_b(&htcsable_asic3.dev, 1<<GPIOB_ACX_PWR_1, 1<<GPIOB_ACX_PWR_1); ++ asic3_set_gpio_out_d(&htcsable_asic3.dev, 1<<GPIOD_ACX_PWR_2, 1<<GPIOD_ACX_PWR_2); ++ mdelay(260); ++ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 1<<GPIOC_ACX_RESET); ++ ++ return 0; ++} ++ ++static int ++htcsable_wlan_stop( void ) ++{ ++ printk( "htcsable_wlan_stop\n" ); ++ asic3_set_gpio_out_b(&htcsable_asic3.dev, 1<<GPIOB_ACX_PWR_1, 0); ++ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 0); ++ asic3_set_gpio_out_d(&htcsable_asic3.dev, 1<<GPIOD_ACX_PWR_2, 0); ++ SET_HTCSABLE_GPIO(ACX111, 0); /* not necessary to power down this one? */ ++ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_PWR_3, 0); /* not necessary to power down this one? */ ++ ++ return 0; ++} ++ ++static struct resource acx_resources[] = { ++ [0] = { ++ .start = WLAN_BASE, ++ .end = WLAN_BASE + 0x20, ++ .flags = IORESOURCE_MEM, ++ }, ++ [1] = { ++// .start = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N, ++// .end = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N, ++ .flags = IORESOURCE_IRQ, ++ }, ++}; ++ ++static struct acx_hardware_data acx_data = { ++ .start_hw = htcsable_wlan_start, ++ .stop_hw = htcsable_wlan_stop, ++}; ++ ++static struct platform_device acx_device = { ++ .name = "acx-mem", ++ .dev = { ++ .platform_data = &acx_data, ++ }, ++ .num_resources = ARRAY_SIZE( acx_resources ), ++ .resource = acx_resources, ++}; ++ ++static int __init ++htcsable_wlan_init( void ) ++{ ++ printk( "htcsable_wlan_init: acx-mem platform_device_register\n" ); ++ acx_device.resource[1].start = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOB_IRQ_BASE+GPIOB_ACX_IRQ_N; ++ acx_device.resource[1].end = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOB_IRQ_BASE+GPIOB_ACX_IRQ_N; ++ return platform_device_register( &acx_device ); ++} ++ ++ ++static void __exit ++htcsable_wlan_exit( void ) ++{ ++ platform_device_unregister( &acx_device ); ++} ++ ++module_init( htcsable_wlan_init ); ++module_exit( htcsable_wlan_exit ); ++ ++MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" ); ++MODULE_DESCRIPTION( "WLAN driver for HTC Sable" ); ++MODULE_LICENSE( "GPL" ); ++ +Index: linux-2.6.23/drivers/net/wireless/acx/htcuniversal_acx.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/htcuniversal_acx.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,108 @@ ++/* ++ * WLAN (TI TNETW1100B) support in the HTC Universal ++ * ++ * Copyright (c) 2006 SDG Systems, LLC ++ * ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file COPYING in the main directory of this archive for ++ * more details. ++ * ++ * 28-March-2006 Todd Blumer <todd@sdgsystems.com> ++ */ ++ ++ ++#include <linux/kernel.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++ ++#include <asm/hardware.h> ++ ++#include <asm/arch/pxa-regs.h> ++#include <linux/soc/asic3_base.h> ++#include <asm/arch/htcuniversal-gpio.h> ++#include <asm/arch/htcuniversal-asic.h> ++#include <asm/io.h> ++ ++#include "acx_hw.h" ++ ++#define WLAN_BASE PXA_CS2_PHYS ++ ++ ++static int ++htcuniversal_wlan_start( void ) ++{ ++ htcuniversal_egpio_enable(1<<EGPIO6_WIFI_ON); ++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_PWR1_ON, 1<<GPIOC_WIFI_PWR1_ON); ++ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR3_ON, 1<<GPIOD_WIFI_PWR3_ON); ++ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR2_ON, 1<<GPIOD_WIFI_PWR2_ON); ++ mdelay(100); ++ ++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 0); ++ mdelay(100); ++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 1<<GPIOC_WIFI_RESET); ++ mdelay(100); ++ return 0; ++} ++ ++static int ++htcuniversal_wlan_stop( void ) ++{ ++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 0); ++ ++ htcuniversal_egpio_disable(1<<EGPIO6_WIFI_ON); ++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_PWR1_ON, 0); ++ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR2_ON, 0); ++ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR3_ON, 0); ++ return 0; ++} ++ ++static struct resource acx_resources[] = { ++ [0] = { ++ .start = WLAN_BASE, ++ .end = WLAN_BASE + 0x20, ++ .flags = IORESOURCE_MEM, ++ }, ++ [1] = { ++// .start = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N, ++// .end = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N, ++ .flags = IORESOURCE_IRQ, ++ }, ++}; ++ ++static struct acx_hardware_data acx_data = { ++ .start_hw = htcuniversal_wlan_start, ++ .stop_hw = htcuniversal_wlan_stop, ++}; ++ ++static struct platform_device acx_device = { ++ .name = "acx-mem", ++ .dev = { ++ .platform_data = &acx_data, ++ }, ++ .num_resources = ARRAY_SIZE( acx_resources ), ++ .resource = acx_resources, ++}; ++ ++static int __init ++htcuniversal_wlan_init( void ) ++{ ++ printk( "htcuniversal_wlan_init: acx-mem platform_device_register\n" ); ++ acx_device.resource[1].start = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N; ++ acx_device.resource[1].end = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N; ++ return platform_device_register( &acx_device ); ++} ++ ++ ++static void __exit ++htcuniversal_wlan_exit( void ) ++{ ++ platform_device_unregister( &acx_device ); ++} ++ ++module_init( htcuniversal_wlan_init ); ++module_exit( htcuniversal_wlan_exit ); ++ ++MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" ); ++MODULE_DESCRIPTION( "WLAN driver for HTC Universal" ); ++MODULE_LICENSE( "GPL" ); ++ +Index: linux-2.6.23/drivers/net/wireless/acx/hx4700_acx.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/hx4700_acx.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,108 @@ ++/* ++ * WLAN (TI TNETW1100B) support in the hx470x. ++ * ++ * Copyright (c) 2006 SDG Systems, LLC ++ * ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file COPYING in the main directory of this archive for ++ * more details. ++ * ++ * 28-March-2006 Todd Blumer <todd@sdgsystems.com> ++ */ ++ ++ ++#include <linux/kernel.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++#include <linux/leds.h> ++ ++#include <asm/hardware.h> ++ ++#include <asm/arch/pxa-regs.h> ++#include <asm/arch/hx4700-gpio.h> ++#include <asm/arch/hx4700-core.h> ++#include <asm/io.h> ++ ++#include "acx_hw.h" ++ ++#define WLAN_OFFSET 0x1000000 ++#define WLAN_BASE (PXA_CS5_PHYS+WLAN_OFFSET) ++ ++ ++static int ++hx4700_wlan_start( void ) ++{ ++ SET_HX4700_GPIO( WLAN_RESET_N, 0 ); ++ mdelay(5); ++ hx4700_egpio_enable( EGPIO0_VCC_3V3_EN ); ++ mdelay(100); ++ hx4700_egpio_enable( EGPIO7_VCC_3V3_WL_EN ); ++ mdelay(150); ++ hx4700_egpio_enable( EGPIO1_WL_VREG_EN | EGPIO2_VCC_2V1_WL_EN | ++ EGPIO6_WL1V8_EN ); ++ mdelay(10); ++ SET_HX4700_GPIO( WLAN_RESET_N, 1 ); ++ mdelay(50); ++ led_trigger_event_shared(hx4700_radio_trig, LED_FULL); ++ return 0; ++} ++ ++static int ++hx4700_wlan_stop( void ) ++{ ++ hx4700_egpio_disable( EGPIO0_VCC_3V3_EN | EGPIO1_WL_VREG_EN | ++ EGPIO7_VCC_3V3_WL_EN | EGPIO2_VCC_2V1_WL_EN | ++ EGPIO6_WL1V8_EN ); ++ SET_HX4700_GPIO( WLAN_RESET_N, 0 ); ++ led_trigger_event_shared(hx4700_radio_trig, LED_OFF); ++ return 0; ++} ++ ++static struct resource acx_resources[] = { ++ [0] = { ++ .start = WLAN_BASE, ++ .end = WLAN_BASE + 0x20, ++ .flags = IORESOURCE_MEM, ++ }, ++ [1] = { ++ .start = HX4700_IRQ(WLAN_IRQ_N), ++ .end = HX4700_IRQ(WLAN_IRQ_N), ++ .flags = IORESOURCE_IRQ, ++ }, ++}; ++ ++static struct acx_hardware_data acx_data = { ++ .start_hw = hx4700_wlan_start, ++ .stop_hw = hx4700_wlan_stop, ++}; ++ ++static struct platform_device acx_device = { ++ .name = "acx-mem", ++ .dev = { ++ .platform_data = &acx_data, ++ }, ++ .num_resources = ARRAY_SIZE( acx_resources ), ++ .resource = acx_resources, ++}; ++ ++static int __init ++hx4700_wlan_init( void ) ++{ ++ printk( "hx4700_wlan_init: acx-mem platform_device_register\n" ); ++ return platform_device_register( &acx_device ); ++} ++ ++ ++static void __exit ++hx4700_wlan_exit( void ) ++{ ++ platform_device_unregister( &acx_device ); ++} ++ ++module_init( hx4700_wlan_init ); ++module_exit( hx4700_wlan_exit ); ++ ++MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" ); ++MODULE_DESCRIPTION( "WLAN driver for iPAQ hx4700" ); ++MODULE_LICENSE( "GPL" ); ++ +Index: linux-2.6.23/drivers/net/wireless/acx/ioctl.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/ioctl.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,2748 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++#include <linux/version.h> ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) ++#include <linux/config.h> ++#endif ++#include <linux/kernel.h> ++#include <linux/types.h> ++#include <asm/io.h> ++/* #include <asm/uaccess.h> */ /* required for 2.4.x kernels; verify_write() */ ++#include <linux/if_arp.h> ++#include <linux/wireless.h> ++#include <net/iw_handler.h> ++ ++#include "acx.h" ++ ++ ++/*********************************************************************** ++*/ ++ ++/* channel frequencies ++ * TODO: Currently, every other 802.11 driver keeps its own copy of this. In ++ * the long run this should be integrated into ieee802_11.h or wireless.h or ++ * whatever IEEE802.11x framework evolves */ ++static const u16 acx_channel_freq[] = { ++ 2412, 2417, 2422, 2427, 2432, 2437, 2442, ++ 2447, 2452, 2457, 2462, 2467, 2472, 2484, ++}; ++ ++ ++/*********************************************************************** ++** acx_ioctl_commit ++*/ ++static int ++acx_ioctl_commit(struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) ++ acx_s_update_card_settings(adev); ++ acx_sem_unlock(adev); ++ ++ FN_EXIT0; ++ return OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_get_name( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ static const char * const names[] = { "IEEE 802.11b+/g+", "IEEE 802.11b+" }; ++ ++ strcpy(wrqu->name, names[IS_ACX111(adev) ? 0 : 1]); ++ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_freq ++*/ ++static int ++acx_ioctl_set_freq( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int channel = -1; ++ unsigned int mult = 1; ++ int result; ++ ++ FN_ENTER; ++ ++ if (wrqu->freq.e == 0 && wrqu->freq.m <= 1000) { ++ /* Setting by channel number */ ++ channel = wrqu->freq.m; ++ } else { ++ /* If setting by frequency, convert to a channel */ ++ int i; ++ ++ for (i = 0; i < (6 - wrqu->freq.e); i++) ++ mult *= 10; ++ ++ for (i = 1; i <= 14; i++) ++ if (wrqu->freq.m == acx_channel_freq[i - 1] * mult) ++ channel = i; ++ } ++ ++ if (channel > 14) { ++ result = -EINVAL; ++ goto end; ++ } ++ ++ acx_sem_lock(adev); ++ ++ adev->channel = channel; ++ /* hmm, the following code part is strange, but this is how ++ * it was being done before... */ ++ log(L_IOCTL, "Changing to channel %d\n", channel); ++ SET_BIT(adev->set_mask, GETSET_CHANNEL); ++ ++ result = -EINPROGRESS; /* need to call commit handler */ ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static inline int ++acx_ioctl_get_freq( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ wrqu->freq.e = 0; ++ wrqu->freq.m = adev->channel; ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_mode ++*/ ++static int ++acx_ioctl_set_mode( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ switch (wrqu->mode) { ++ case IW_MODE_AUTO: ++ adev->mode = ACX_MODE_OFF; ++ break; ++ case IW_MODE_MONITOR: ++ adev->mode = ACX_MODE_MONITOR; ++ break; ++ case IW_MODE_ADHOC: ++ adev->mode = ACX_MODE_0_ADHOC; ++ break; ++ case IW_MODE_INFRA: ++ adev->mode = ACX_MODE_2_STA; ++ break; ++ case IW_MODE_MASTER: ++ printk("acx: master mode (HostAP) is very, very " ++ "experimental! It might work partially, but " ++ "better get prepared for nasty surprises " ++ "at any time\n"); ++ adev->mode = ACX_MODE_3_AP; ++ break; ++ case IW_MODE_REPEAT: ++ case IW_MODE_SECOND: ++ default: ++ result = -EOPNOTSUPP; ++ goto end_unlock; ++ } ++ ++ log(L_ASSOC, "new adev->mode=%d\n", adev->mode); ++ SET_BIT(adev->set_mask, GETSET_MODE); ++ result = -EINPROGRESS; ++ ++end_unlock: ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_get_mode( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result = 0; ++ ++ switch (adev->mode) { ++ case ACX_MODE_OFF: ++ wrqu->mode = IW_MODE_AUTO; break; ++ case ACX_MODE_MONITOR: ++ wrqu->mode = IW_MODE_MONITOR; break; ++ case ACX_MODE_0_ADHOC: ++ wrqu->mode = IW_MODE_ADHOC; break; ++ case ACX_MODE_2_STA: ++ wrqu->mode = IW_MODE_INFRA; break; ++ case ACX_MODE_3_AP: ++ wrqu->mode = IW_MODE_MASTER; break; ++ default: ++ result = -EOPNOTSUPP; ++ } ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_set_sens( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->sens; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ acx_sem_lock(adev); ++ ++ adev->sensitivity = (1 == vwrq->disabled) ? 0 : vwrq->value; ++ SET_BIT(adev->set_mask, GETSET_SENSITIVITY); ++ ++ acx_sem_unlock(adev); ++ ++ return -EINPROGRESS; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_get_sens( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->sens; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ if (IS_USB(adev)) ++ /* setting the PHY reg via fw cmd doesn't work yet */ ++ return -EOPNOTSUPP; ++ ++ /* acx_sem_lock(adev); */ ++ ++ vwrq->value = adev->sensitivity; ++ vwrq->disabled = (vwrq->value == 0); ++ vwrq->fixed = 1; ++ ++ /* acx_sem_unlock(adev); */ ++ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_ap ++** ++** Sets the MAC address of the AP to associate with ++*/ ++static int ++acx_ioctl_set_ap( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct sockaddr *awrq = &wrqu->ap_addr; ++ acx_device_t *adev = ndev2adev(ndev); ++ int result = 0; ++ const u8 *ap; ++ ++ FN_ENTER; ++ if (NULL == awrq) { ++ result = -EFAULT; ++ goto end; ++ } ++ if (ARPHRD_ETHER != awrq->sa_family) { ++ result = -EINVAL; ++ goto end; ++ } ++ ++ ap = awrq->sa_data; ++ acxlog_mac(L_IOCTL, "set AP=", ap, "\n"); ++ ++ MAC_COPY(adev->ap, ap); ++ ++ /* We want to start rescan in managed or ad-hoc mode, ++ ** otherwise just set adev->ap. ++ ** "iwconfig <if> ap <mac> mode managed": we must be able ++ ** to set ap _first_ and _then_ set mode */ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ /* FIXME: if there is a convention on what zero AP means, ++ ** please add a comment about that. I don't know of any --vda */ ++ if (mac_is_zero(ap)) { ++ /* "off" == 00:00:00:00:00:00 */ ++ MAC_BCAST(adev->ap); ++ log(L_IOCTL, "Not reassociating\n"); ++ } else { ++ log(L_IOCTL, "Forcing reassociation\n"); ++ SET_BIT(adev->set_mask, GETSET_RESCAN); ++ } ++ break; ++ } ++ result = -EINPROGRESS; ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_get_ap( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct sockaddr *awrq = &wrqu->ap_addr; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ if (ACX_STATUS_4_ASSOCIATED == adev->status) { ++ /* as seen in Aironet driver, airo.c */ ++ MAC_COPY(awrq->sa_data, adev->bssid); ++ } else { ++ MAC_ZERO(awrq->sa_data); ++ } ++ awrq->sa_family = ARPHRD_ETHER; ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_aplist ++** ++** Deprecated in favor of iwscan. ++** We simply return the list of currently available stations in range, ++** don't do a new scan. ++*/ ++static int ++acx_ioctl_get_aplist( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->data; ++ acx_device_t *adev = ndev2adev(ndev); ++ struct sockaddr *address = (struct sockaddr *) extra; ++ struct iw_quality qual[IW_MAX_AP]; ++ int i, cur; ++ int result = OK; ++ ++ FN_ENTER; ++ ++ /* we have AP list only in STA mode */ ++ if (ACX_MODE_2_STA != adev->mode) { ++ result = -EOPNOTSUPP; ++ goto end; ++ } ++ ++ cur = 0; ++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) { ++ struct client *bss = &adev->sta_list[i]; ++ if (!bss->used) continue; ++ MAC_COPY(address[cur].sa_data, bss->bssid); ++ address[cur].sa_family = ARPHRD_ETHER; ++ qual[cur].level = bss->sir; ++ qual[cur].noise = bss->snr; ++#ifndef OLD_QUALITY ++ qual[cur].qual = acx_signal_determine_quality(qual[cur].level, ++ qual[cur].noise); ++#else ++ qual[cur].qual = (qual[cur].noise <= 100) ? ++ 100 - qual[cur].noise : 0; ++#endif ++ /* no scan: level/noise/qual not updated: */ ++ qual[cur].updated = 0; ++ cur++; ++ } ++ if (cur) { ++ dwrq->flags = 1; ++ memcpy(extra + sizeof(struct sockaddr)*cur, &qual, ++ sizeof(struct iw_quality)*cur); ++ } ++ dwrq->length = cur; ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_set_scan( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ /* don't start scan if device is not up yet */ ++ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) { ++ result = -EAGAIN; ++ goto end_unlock; ++ } ++ ++ /* This is NOT a rescan for new AP! ++ ** Do not use SET_BIT(GETSET_RESCAN); */ ++ acx_s_cmd_start_scan(adev); ++ result = OK; ++ ++end_unlock: ++ acx_sem_unlock(adev); ++/* end: */ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_s_scan_add_station ++*/ ++/* helper. not sure whether it's really a _s_leeping fn */ ++static char* ++acx_s_scan_add_station( ++ acx_device_t *adev, ++ char *ptr, ++ char *end_buf, ++ struct client *bss) ++{ ++ struct iw_event iwe; ++ char *ptr_rate; ++ ++ FN_ENTER; ++ ++ /* MAC address has to be added first */ ++ iwe.cmd = SIOCGIWAP; ++ iwe.u.ap_addr.sa_family = ARPHRD_ETHER; ++ MAC_COPY(iwe.u.ap_addr.sa_data, bss->bssid); ++ acxlog_mac(L_IOCTL, "scan, station address: ", bss->bssid, "\n"); ++ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_ADDR_LEN); ++ ++ /* Add ESSID */ ++ iwe.cmd = SIOCGIWESSID; ++ iwe.u.data.length = bss->essid_len; ++ iwe.u.data.flags = 1; ++ log(L_IOCTL, "scan, essid: %s\n", bss->essid); ++ ptr = iwe_stream_add_point(ptr, end_buf, &iwe, bss->essid); ++ ++ /* Add mode */ ++ iwe.cmd = SIOCGIWMODE; ++ if (bss->cap_info & (WF_MGMT_CAP_ESS | WF_MGMT_CAP_IBSS)) { ++ if (bss->cap_info & WF_MGMT_CAP_ESS) ++ iwe.u.mode = IW_MODE_MASTER; ++ else ++ iwe.u.mode = IW_MODE_ADHOC; ++ log(L_IOCTL, "scan, mode: %d\n", iwe.u.mode); ++ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_UINT_LEN); ++ } ++ ++ /* Add frequency */ ++ iwe.cmd = SIOCGIWFREQ; ++ iwe.u.freq.m = acx_channel_freq[bss->channel - 1] * 100000; ++ iwe.u.freq.e = 1; ++ log(L_IOCTL, "scan, frequency: %d\n", iwe.u.freq.m); ++ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_FREQ_LEN); ++ ++ /* Add link quality */ ++ iwe.cmd = IWEVQUAL; ++ /* FIXME: these values should be expressed in dBm, but we don't know ++ * how to calibrate it yet */ ++ iwe.u.qual.level = bss->sir; ++ iwe.u.qual.noise = bss->snr; ++#ifndef OLD_QUALITY ++ iwe.u.qual.qual = acx_signal_determine_quality(iwe.u.qual.level, ++ iwe.u.qual.noise); ++#else ++ iwe.u.qual.qual = (iwe.u.qual.noise <= 100) ? ++ 100 - iwe.u.qual.noise : 0; ++#endif ++ iwe.u.qual.updated = 7; ++ log(L_IOCTL, "scan, link quality: %d/%d/%d\n", ++ iwe.u.qual.level, iwe.u.qual.noise, iwe.u.qual.qual); ++ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_QUAL_LEN); ++ ++ /* Add encryption */ ++ iwe.cmd = SIOCGIWENCODE; ++ if (bss->cap_info & WF_MGMT_CAP_PRIVACY) ++ iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; ++ else ++ iwe.u.data.flags = IW_ENCODE_DISABLED; ++ iwe.u.data.length = 0; ++ log(L_IOCTL, "scan, encryption flags: %X\n", iwe.u.data.flags); ++ ptr = iwe_stream_add_point(ptr, end_buf, &iwe, bss->essid); ++ ++ /* add rates */ ++ iwe.cmd = SIOCGIWRATE; ++ iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; ++ ptr_rate = ptr + IW_EV_LCP_LEN; ++ ++ { ++ u16 rate = bss->rate_cap; ++ const u8* p = acx_bitpos2ratebyte; ++ while (rate) { ++ if (rate & 1) { ++ iwe.u.bitrate.value = *p * 500000; /* units of 500kb/s */ ++ log(L_IOCTL, "scan, rate: %d\n", iwe.u.bitrate.value); ++ ptr_rate = iwe_stream_add_value(ptr, ptr_rate, end_buf, ++ &iwe, IW_EV_PARAM_LEN); ++ } ++ rate >>= 1; ++ p++; ++ }} ++ ++ if ((ptr_rate - ptr) > (ptrdiff_t)IW_EV_LCP_LEN) ++ ptr = ptr_rate; ++ ++ /* drop remaining station data items for now */ ++ ++ FN_EXIT0; ++ return ptr; ++} ++ ++ ++/*********************************************************************** ++ * acx_ioctl_get_scan ++ */ ++static int ++acx_ioctl_get_scan( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->data; ++ acx_device_t *adev = ndev2adev(ndev); ++ char *ptr = extra; ++ int i; ++ int result = OK; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ /* no scan available if device is not up yet */ ++ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) { ++ log(L_IOCTL, "iface not up yet\n"); ++ result = -EAGAIN; ++ goto end_unlock; ++ } ++ ++#ifdef ENODATA_TO_BE_USED_AFTER_SCAN_ERROR_ONLY ++ if (adev->bss_table_count == 0) { ++ /* no stations found */ ++ result = -ENODATA; ++ goto end_unlock; ++ } ++#endif ++ ++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) { ++ struct client *bss = &adev->sta_list[i]; ++ if (!bss->used) continue; ++ ptr = acx_s_scan_add_station(adev, ptr, ++ extra + IW_SCAN_MAX_DATA, bss); ++ } ++ dwrq->length = ptr - extra; ++ dwrq->flags = 0; ++ ++end_unlock: ++ acx_sem_unlock(adev); ++/* end: */ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_essid ++*/ ++static int ++acx_ioctl_set_essid( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->essid; ++ acx_device_t *adev = ndev2adev(ndev); ++ int len = dwrq->length; ++ int result; ++ ++ FN_ENTER; ++ ++ if (len < 0) { ++ result = -EINVAL; ++ goto end; ++ } ++ ++ log(L_IOCTL, "set ESSID '%*s', length %d, flags 0x%04X\n", ++ len, extra, len, dwrq->flags); ++ ++#if WIRELESS_EXT >= 21 ++ /* WE 21 gives real ESSID strlen, not +1 (trailing zero): ++ * see LKML "[patch] drivers/net/wireless: correct reported ssid lengths" */ ++ len += 1; ++#endif ++ ++ acx_sem_lock(adev); ++ ++ /* ESSID disabled? */ ++ if (0 == dwrq->flags) { ++ adev->essid_active = 0; ++ ++ } else { ++ if (len > IW_ESSID_MAX_SIZE) { ++ result = -E2BIG; ++ goto end_unlock; ++ } ++ ++ if (len >= sizeof(adev->essid)) ++ len = sizeof(adev->essid) - 1; ++ memcpy(adev->essid, extra, len); ++ adev->essid[len] = '\0'; ++ /* Paranoia: just in case there is a '\0'... */ ++ adev->essid_len = strlen(adev->essid); ++ adev->essid_active = 1; ++ } ++ ++ SET_BIT(adev->set_mask, GETSET_RESCAN); ++ ++ result = -EINPROGRESS; ++ ++end_unlock: ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_get_essid( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->essid; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ dwrq->flags = adev->essid_active; ++ if (adev->essid_active) { ++ memcpy(extra, adev->essid, adev->essid_len); ++ extra[adev->essid_len] = '\0'; ++ dwrq->length = adev->essid_len + 1; ++ dwrq->flags = 1; ++ } ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_l_update_client_rates ++*/ ++static void ++acx_l_update_client_rates(acx_device_t *adev, u16 rate) ++{ ++ int i; ++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) { ++ client_t *clt = &adev->sta_list[i]; ++ if (!clt->used) continue; ++ clt->rate_cfg = (clt->rate_cap & rate); ++ if (!clt->rate_cfg) { ++ /* no compatible rates left: kick client */ ++ acxlog_mac(L_ASSOC, "client ",clt->address," kicked: " ++ "rates are not compatible anymore\n"); ++ acx_l_sta_list_del(adev, clt); ++ continue; ++ } ++ clt->rate_cur &= clt->rate_cfg; ++ if (!clt->rate_cur) { ++ /* current rate become invalid, choose a valid one */ ++ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg); ++ } ++ if (IS_ACX100(adev)) ++ clt->rate_100 = acx_bitpos2rate100[highest_bit(clt->rate_cur)]; ++ clt->fallback_count = clt->stepup_count = 0; ++ clt->ignore_count = 16; ++ } ++ switch (adev->mode) { ++ case ACX_MODE_2_STA: ++ if (adev->ap_client && !adev->ap_client->used) { ++ /* Owwww... we kicked our AP!! :) */ ++ SET_BIT(adev->set_mask, GETSET_RESCAN); ++ } ++ } ++} ++ ++ ++/*********************************************************************** ++*/ ++/* maps bits from acx111 rate to rate in Mbits */ ++static const unsigned int ++acx111_rate_tbl[] = { ++ 1000000, /* 0 */ ++ 2000000, /* 1 */ ++ 5500000, /* 2 */ ++ 6000000, /* 3 */ ++ 9000000, /* 4 */ ++ 11000000, /* 5 */ ++ 12000000, /* 6 */ ++ 18000000, /* 7 */ ++ 22000000, /* 8 */ ++ 24000000, /* 9 */ ++ 36000000, /* 10 */ ++ 48000000, /* 11 */ ++ 54000000, /* 12 */ ++ 500000, /* 13, should not happen */ ++ 500000, /* 14, should not happen */ ++ 500000, /* 15, should not happen */ ++}; ++ ++/*********************************************************************** ++ * acx_ioctl_set_rate ++ */ ++static int ++acx_ioctl_set_rate( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->param; ++ acx_device_t *adev = ndev2adev(ndev); ++ u16 txrate_cfg = 1; ++ unsigned long flags; ++ int autorate; ++ int result = -EINVAL; ++ ++ FN_ENTER; ++ log(L_IOCTL, "rate %d fixed 0x%X disabled 0x%X flags 0x%X\n", ++ vwrq->value, vwrq->fixed, vwrq->disabled, vwrq->flags); ++ ++ if ((0 == vwrq->fixed) || (1 == vwrq->fixed)) { ++ int i = VEC_SIZE(acx111_rate_tbl)-1; ++ if (vwrq->value == -1) ++ /* "iwconfig rate auto" --> choose highest */ ++ vwrq->value = IS_ACX100(adev) ? 22000000 : 54000000; ++ while (i >= 0) { ++ if (vwrq->value == acx111_rate_tbl[i]) { ++ txrate_cfg <<= i; ++ i = 0; ++ break; ++ } ++ i--; ++ } ++ if (i == -1) { /* no matching rate */ ++ result = -EINVAL; ++ goto end; ++ } ++ } else { /* rate N, N<1000 (driver specific): we don't use this */ ++ result = -EOPNOTSUPP; ++ goto end; ++ } ++ /* now: only one bit is set in txrate_cfg, corresponding to ++ ** indicated rate */ ++ ++ autorate = (vwrq->fixed == 0) && (RATE111_1 != txrate_cfg); ++ if (autorate) { ++ /* convert 00100000 -> 00111111 */ ++ txrate_cfg = (txrate_cfg<<1)-1; ++ } ++ ++ if (IS_ACX100(adev)) { ++ txrate_cfg &= RATE111_ACX100_COMPAT; ++ if (!txrate_cfg) { ++ result = -ENOTSUPP; /* rate is not supported by acx100 */ ++ goto end; ++ } ++ } ++ ++ acx_sem_lock(adev); ++ acx_lock(adev, flags); ++ ++ adev->rate_auto = autorate; ++ adev->rate_oper = txrate_cfg; ++ adev->rate_basic = txrate_cfg; ++ /* only do that in auto mode, non-auto will be able to use ++ * one specific Tx rate only anyway */ ++ if (autorate) { ++ /* only use 802.11b base rates, for standard 802.11b H/W ++ * compatibility */ ++ adev->rate_basic &= RATE111_80211B_COMPAT; ++ } ++ adev->rate_bcast = 1 << lowest_bit(txrate_cfg); ++ if (IS_ACX100(adev)) ++ adev->rate_bcast100 = acx_rate111to100(adev->rate_bcast); ++ acx_l_update_ratevector(adev); ++ acx_l_update_client_rates(adev, txrate_cfg); ++ ++ /* Do/don't do tx rate fallback; beacon contents and rate */ ++ SET_BIT(adev->set_mask, SET_RATE_FALLBACK|SET_TEMPLATES); ++ result = -EINPROGRESS; ++ ++ acx_unlock(adev, flags); ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_rate ++*/ ++static int ++acx_ioctl_get_rate( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->param; ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ u16 rate; ++ ++ acx_lock(adev, flags); ++ rate = adev->rate_oper; ++ if (adev->ap_client) ++ rate = adev->ap_client->rate_cur; ++ vwrq->value = acx111_rate_tbl[highest_bit(rate)]; ++ vwrq->fixed = !adev->rate_auto; ++ vwrq->disabled = 0; ++ acx_unlock(adev, flags); ++ ++ return OK; ++} ++ ++static int ++acx_ioctl_set_rts( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->rts; ++ acx_device_t *adev = ndev2adev(ndev); ++ int val = vwrq->value; ++ ++ if (vwrq->disabled) ++ val = 2312; ++ if ((val < 0) || (val > 2312)) ++ return -EINVAL; ++ ++ adev->rts_threshold = val; ++ return OK; ++} ++ ++static inline int ++acx_ioctl_get_rts( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->rts; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ vwrq->value = adev->rts_threshold; ++ vwrq->disabled = (vwrq->value >= 2312); ++ vwrq->fixed = 1; ++ return OK; ++} ++ ++ ++#if ACX_FRAGMENTATION ++static int ++acx_ioctl_set_frag( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int val = vwrq->value; ++ ++ if (vwrq->disabled) ++ val = 32767; ++ else ++ if ((val < 256) || (val > 2347)) ++ return -EINVAL; ++ ++ adev->frag_threshold = val; ++ return OK; ++} ++ ++static inline int ++acx_ioctl_get_frag( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->frag; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ vwrq->value = adev->frag_threshold; ++ vwrq->disabled = (vwrq->value >= 2347); ++ vwrq->fixed = 1; ++ return OK; ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_encode ++*/ ++static int ++acx_ioctl_set_encode( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->encoding; ++ acx_device_t *adev = ndev2adev(ndev); ++ int index; ++ int result; ++ ++ FN_ENTER; ++ ++ log(L_IOCTL, "set encoding flags=0x%04X, size=%d, key: %s\n", ++ dwrq->flags, dwrq->length, extra ? "set" : "No key"); ++ ++ acx_sem_lock(adev); ++ ++ index = (dwrq->flags & IW_ENCODE_INDEX) - 1; ++ ++ if (dwrq->length > 0) { ++ /* if index is 0 or invalid, use default key */ ++ if ((index < 0) || (index > 3)) ++ index = (int)adev->wep_current_index; ++ ++ if (0 == (dwrq->flags & IW_ENCODE_NOKEY)) { ++ if (dwrq->length > 29) ++ dwrq->length = 29; /* restrict it */ ++ ++ if (dwrq->length > 13) { ++ /* 29*8 == 232, WEP256 */ ++ adev->wep_keys[index].size = 29; ++ } else if (dwrq->length > 5) { ++ /* 13*8 == 104bit, WEP128 */ ++ adev->wep_keys[index].size = 13; ++ } else if (dwrq->length > 0) { ++ /* 5*8 == 40bit, WEP64 */ ++ adev->wep_keys[index].size = 5; ++ } else { ++ /* disable key */ ++ adev->wep_keys[index].size = 0; ++ } ++ ++ memset(adev->wep_keys[index].key, 0, ++ sizeof(adev->wep_keys[index].key)); ++ memcpy(adev->wep_keys[index].key, extra, dwrq->length); ++ } ++ } else { ++ /* set transmit key */ ++ if ((index >= 0) && (index <= 3)) ++ adev->wep_current_index = index; ++ else if (0 == (dwrq->flags & IW_ENCODE_MODE)) { ++ /* complain if we were not just setting ++ * the key mode */ ++ result = -EINVAL; ++ goto end_unlock; ++ } ++ } ++ ++ adev->wep_enabled = !(dwrq->flags & IW_ENCODE_DISABLED); ++ ++ if (dwrq->flags & IW_ENCODE_OPEN) { ++ adev->auth_alg = WLAN_AUTH_ALG_OPENSYSTEM; ++ adev->wep_restricted = 0; ++ ++ } else if (dwrq->flags & IW_ENCODE_RESTRICTED) { ++ adev->auth_alg = WLAN_AUTH_ALG_SHAREDKEY; ++ adev->wep_restricted = 1; ++ } ++ ++ /* set flag to make sure the card WEP settings get updated */ ++ SET_BIT(adev->set_mask, GETSET_WEP); ++ ++ log(L_IOCTL, "len=%d, key at 0x%p, flags=0x%X\n", ++ dwrq->length, extra, dwrq->flags); ++ ++ for (index = 0; index <= 3; index++) { ++ if (adev->wep_keys[index].size) { ++ log(L_IOCTL, "index=%d, size=%d, key at 0x%p\n", ++ adev->wep_keys[index].index, ++ (int) adev->wep_keys[index].size, ++ adev->wep_keys[index].key); ++ } ++ } ++ result = -EINPROGRESS; ++ ++end_unlock: ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_encode ++*/ ++static int ++acx_ioctl_get_encode( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->encoding; ++ acx_device_t *adev = ndev2adev(ndev); ++ int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; ++ ++ FN_ENTER; ++ ++ if (adev->wep_enabled == 0) { ++ dwrq->flags = IW_ENCODE_DISABLED; ++ } else { ++ if ((index < 0) || (index > 3)) ++ index = (int)adev->wep_current_index; ++ ++ dwrq->flags = (adev->wep_restricted == 1) ? ++ IW_ENCODE_RESTRICTED : IW_ENCODE_OPEN; ++ dwrq->length = adev->wep_keys[index].size; ++ ++ memcpy(extra, adev->wep_keys[index].key, ++ adev->wep_keys[index].size); ++ } ++ ++ /* set the current index */ ++ SET_BIT(dwrq->flags, index + 1); ++ ++ log(L_IOCTL, "len=%d, key=%p, flags=0x%X\n", ++ dwrq->length, dwrq->pointer, ++ dwrq->flags); ++ ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_set_power( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->power; ++ acx_device_t *adev = ndev2adev(ndev); ++ int result = -EINPROGRESS; ++ ++ FN_ENTER; ++ ++ log(L_IOCTL, "set 802.11 powersave flags=0x%04X\n", vwrq->flags); ++ ++ acx_sem_lock(adev); ++ ++ if (vwrq->disabled) { ++ CLEAR_BIT(adev->ps_wakeup_cfg, PS_CFG_ENABLE); ++ SET_BIT(adev->set_mask, GETSET_POWER_80211); ++ goto end; ++ } ++ if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { ++ u16 ps_timeout = (vwrq->value * 1024) / 1000; ++ ++ if (ps_timeout > 255) ++ ps_timeout = 255; ++ log(L_IOCTL, "setting PS timeout value to %d time units " ++ "due to %dus\n", ps_timeout, vwrq->value); ++ adev->ps_hangover_period = ps_timeout; ++ } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) { ++ u16 ps_periods = vwrq->value / 1000000; ++ ++ if (ps_periods > 255) ++ ps_periods = 255; ++ log(L_IOCTL, "setting PS period value to %d periods " ++ "due to %dus\n", ps_periods, vwrq->value); ++ adev->ps_listen_interval = ps_periods; ++ CLEAR_BIT(adev->ps_wakeup_cfg, PS_CFG_WAKEUP_MODE_MASK); ++ SET_BIT(adev->ps_wakeup_cfg, PS_CFG_WAKEUP_EACH_ITVL); ++ } ++ ++ switch (vwrq->flags & IW_POWER_MODE) { ++ /* FIXME: are we doing the right thing here? */ ++ case IW_POWER_UNICAST_R: ++ CLEAR_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS); ++ break; ++ case IW_POWER_MULTICAST_R: ++ SET_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS); ++ break; ++ case IW_POWER_ALL_R: ++ SET_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS); ++ break; ++ case IW_POWER_ON: ++ break; ++ default: ++ log(L_IOCTL, "unknown PS mode\n"); ++ result = -EINVAL; ++ goto end; ++ } ++ ++ SET_BIT(adev->ps_wakeup_cfg, PS_CFG_ENABLE); ++ SET_BIT(adev->set_mask, GETSET_POWER_80211); ++end: ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx_ioctl_get_power( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->power; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ FN_ENTER; ++ ++ log(L_IOCTL, "Get 802.11 Power Save flags = 0x%04X\n", vwrq->flags); ++ vwrq->disabled = ((adev->ps_wakeup_cfg & PS_CFG_ENABLE) == 0); ++ if (vwrq->disabled) ++ goto end; ++ ++ if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { ++ vwrq->value = adev->ps_hangover_period * 1000 / 1024; ++ vwrq->flags = IW_POWER_TIMEOUT; ++ } else { ++ vwrq->value = adev->ps_listen_interval * 1000000; ++ vwrq->flags = IW_POWER_PERIOD|IW_POWER_RELATIVE; ++ } ++ if (adev->ps_options & PS_OPT_STILL_RCV_BCASTS) ++ SET_BIT(vwrq->flags, IW_POWER_ALL_R); ++ else ++ SET_BIT(vwrq->flags, IW_POWER_UNICAST_R); ++end: ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_txpow ++*/ ++static inline int ++acx_ioctl_get_txpow( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->power; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ FN_ENTER; ++ ++ vwrq->flags = IW_TXPOW_DBM; ++ vwrq->disabled = 0; ++ vwrq->fixed = 1; ++ vwrq->value = adev->tx_level_dbm; ++ ++ log(L_IOCTL, "get txpower:%d dBm\n", adev->tx_level_dbm); ++ ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_txpow ++*/ ++static int ++acx_ioctl_set_txpow( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->power; ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ FN_ENTER; ++ ++ log(L_IOCTL, "set txpower:%d, disabled:%d, flags:0x%04X\n", ++ vwrq->value, vwrq->disabled, vwrq->flags); ++ ++ acx_sem_lock(adev); ++ ++ if (vwrq->disabled != adev->tx_disabled) { ++ SET_BIT(adev->set_mask, GETSET_TX); ++ } ++ ++ adev->tx_disabled = vwrq->disabled; ++ if (vwrq->value == -1) { ++ if (vwrq->disabled) { ++ adev->tx_level_dbm = 0; ++ log(L_IOCTL, "disable radio tx\n"); ++ } else { ++ /* adev->tx_level_auto = 1; */ ++ log(L_IOCTL, "set tx power auto (NIY)\n"); ++ } ++ } else { ++ adev->tx_level_dbm = vwrq->value <= 20 ? vwrq->value : 20; ++ /* adev->tx_level_auto = 0; */ ++ log(L_IOCTL, "set txpower=%d dBm\n", adev->tx_level_dbm); ++ } ++ SET_BIT(adev->set_mask, GETSET_TXPOWER); ++ ++ result = -EINPROGRESS; ++ ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_range ++*/ ++static int ++acx_ioctl_get_range( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->data; ++ struct iw_range *range = (struct iw_range *)extra; ++ acx_device_t *adev = ndev2adev(ndev); ++ int i,n; ++ ++ FN_ENTER; ++ ++ if (!dwrq->pointer) ++ goto end; ++ ++ dwrq->length = sizeof(struct iw_range); ++ memset(range, 0, sizeof(struct iw_range)); ++ n = 0; ++ for (i = 1; i <= 14; i++) { ++ if (adev->reg_dom_chanmask & (1 << (i - 1))) { ++ range->freq[n].i = i; ++ range->freq[n].m = acx_channel_freq[i - 1] * 100000; ++ range->freq[n].e = 1; /* units are MHz */ ++ n++; ++ } ++ } ++ range->num_channels = n; ++ range->num_frequency = n; ++ ++ range->min_rts = 0; ++ range->max_rts = 2312; ++ ++#if ACX_FRAGMENTATION ++ range->min_frag = 256; ++ range->max_frag = 2312; ++#endif ++ ++ range->encoding_size[0] = 5; ++ range->encoding_size[1] = 13; ++ range->encoding_size[2] = 29; ++ range->num_encoding_sizes = 3; ++ range->max_encoding_tokens = 4; ++ ++ range->min_pmp = 0; ++ range->max_pmp = 5000000; ++ range->min_pmt = 0; ++ range->max_pmt = 65535 * 1000; ++ range->pmp_flags = IW_POWER_PERIOD; ++ range->pmt_flags = IW_POWER_TIMEOUT; ++ range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R; ++ ++ if (IS_ACX100(adev)) { /* ACX100 has direct radio programming - arbitrary levels, so offer a lot */ ++ for (i = 0; i <= IW_MAX_TXPOWER - 1; i++) ++ range->txpower[i] = 20 * i / (IW_MAX_TXPOWER - 1); ++ range->num_txpower = IW_MAX_TXPOWER; ++ range->txpower_capa = IW_TXPOW_DBM; ++ } ++ else { ++ int count = min(IW_MAX_TXPOWER, (int)adev->cfgopt_power_levels.len); ++ for (i = 0; i <= count; i++) ++ range->txpower[i] = adev->cfgopt_power_levels.list[i]; ++ range->num_txpower = count; ++ /* this list is given in mW */ ++ range->txpower_capa = IW_TXPOW_MWATT; ++ } ++ ++ range->we_version_compiled = WIRELESS_EXT; ++ range->we_version_source = 0x9; ++ ++ range->retry_capa = IW_RETRY_LIMIT; ++ range->retry_flags = IW_RETRY_LIMIT; ++ range->min_retry = 1; ++ range->max_retry = 255; ++ ++ range->r_time_flags = IW_RETRY_LIFETIME; ++ range->min_r_time = 0; ++ /* FIXME: lifetime ranges and orders of magnitude are strange?? */ ++ range->max_r_time = 65535; ++ ++ if (IS_USB(adev)) ++ range->sensitivity = 0; ++ else if (IS_ACX111(adev)) ++ range->sensitivity = 3; ++ else ++ range->sensitivity = 255; ++ ++ for (i=0; i < adev->rate_supported_len; i++) { ++ range->bitrate[i] = (adev->rate_supported[i] & ~0x80) * 500000; ++ /* never happens, but keep it, to be safe: */ ++ if (range->bitrate[i] == 0) ++ break; ++ } ++ range->num_bitrates = i; ++ ++ range->max_qual.qual = 100; ++ range->max_qual.level = 100; ++ range->max_qual.noise = 100; ++ /* TODO: better values */ ++ range->avg_qual.qual = 90; ++ range->avg_qual.level = 80; ++ range->avg_qual.noise = 2; ++ ++end: ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** Private functions ++*/ ++ ++/*********************************************************************** ++** acx_ioctl_get_nick ++*/ ++static inline int ++acx_ioctl_get_nick( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->data; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ strcpy(extra, adev->nick); ++ dwrq->length = strlen(extra) + 1; ++ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_nick ++*/ ++static int ++acx_ioctl_set_nick( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_point *dwrq = &wrqu->data; ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ if (dwrq->length > IW_ESSID_MAX_SIZE + 1) { ++ result = -E2BIG; ++ goto end_unlock; ++ } ++ ++ /* extra includes trailing \0, so it's ok */ ++ strcpy(adev->nick, extra); ++ result = OK; ++ ++end_unlock: ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_retry ++*/ ++static int ++acx_ioctl_get_retry( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->retry; ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned int type = vwrq->flags & IW_RETRY_TYPE; ++ unsigned int modifier = vwrq->flags & IW_RETRY_MODIFIER; ++ int result; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ /* return the short retry number by default */ ++ if (type == IW_RETRY_LIFETIME) { ++ vwrq->flags = IW_RETRY_LIFETIME; ++ vwrq->value = adev->msdu_lifetime; ++ } else if (modifier == IW_RETRY_MAX) { ++ vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; ++ vwrq->value = adev->long_retry; ++ } else { ++ vwrq->flags = IW_RETRY_LIMIT; ++ if (adev->long_retry != adev->short_retry) ++ SET_BIT(vwrq->flags, IW_RETRY_MIN); ++ vwrq->value = adev->short_retry; ++ } ++ ++ /* can't be disabled */ ++ vwrq->disabled = (u8)0; ++ result = OK; ++ ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_retry ++*/ ++static int ++acx_ioctl_set_retry( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->retry; ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ FN_ENTER; ++ ++ if (!vwrq) { ++ result = -EFAULT; ++ goto end; ++ } ++ if (vwrq->disabled) { ++ result = -EINVAL; ++ goto end; ++ } ++ ++ acx_sem_lock(adev); ++ ++ result = -EINVAL; ++ if (IW_RETRY_LIMIT == (vwrq->flags & IW_RETRY_TYPE)) { ++ printk("old retry limits: short %d long %d\n", ++ adev->short_retry, adev->long_retry); ++ if (vwrq->flags & IW_RETRY_MAX) { ++ adev->long_retry = vwrq->value; ++ } else if (vwrq->flags & IW_RETRY_MIN) { ++ adev->short_retry = vwrq->value; ++ } else { ++ /* no modifier: set both */ ++ adev->long_retry = vwrq->value; ++ adev->short_retry = vwrq->value; ++ } ++ printk("new retry limits: short %d long %d\n", ++ adev->short_retry, adev->long_retry); ++ SET_BIT(adev->set_mask, GETSET_RETRY); ++ result = -EINPROGRESS; ++ } ++ else if (vwrq->flags & IW_RETRY_LIFETIME) { ++ adev->msdu_lifetime = vwrq->value; ++ printk("new MSDU lifetime: %d\n", adev->msdu_lifetime); ++ SET_BIT(adev->set_mask, SET_MSDU_LIFETIME); ++ result = -EINPROGRESS; ++ } ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/************************ private ioctls ******************************/ ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_debug ++*/ ++#if ACX_DEBUG ++static int ++acx_ioctl_set_debug( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ unsigned int debug_new = *((unsigned int *)extra); ++ int result = -EINVAL; ++ ++ log(L_ANY, "setting debug from %04X to %04X\n", acx_debug, debug_new); ++ acx_debug = debug_new; ++ ++ result = OK; ++ return result; ++ ++} ++#endif ++ ++ ++/*********************************************************************** ++** acx_ioctl_list_reg_domain ++*/ ++static int ++acx_ioctl_list_reg_domain( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ int i = 1; ++ const char * const *entry = acx_reg_domain_strings; ++ ++ printk("dom# chan# domain/country\n"); ++ while (*entry) ++ printk("%4d %s\n", i++, *entry++); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_reg_domain ++*/ ++static int ++acx_ioctl_set_reg_domain( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ FN_ENTER; ++ ++ if ((*extra < 1) || ((size_t)*extra > acx_reg_domain_ids_len)) { ++ result = -EINVAL; ++ goto end; ++ } ++ ++ acx_sem_lock(adev); ++ ++ adev->reg_dom_id = acx_reg_domain_ids[*extra - 1]; ++ SET_BIT(adev->set_mask, GETSET_REG_DOMAIN); ++ ++ result = -EINPROGRESS; ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_reg_domain ++*/ ++static int ++acx_ioctl_get_reg_domain( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int dom,i; ++ ++ /* no locking */ ++ dom = adev->reg_dom_id; ++ ++ for (i = 1; i <= acx_reg_domain_ids_len; i++) { ++ if (acx_reg_domain_ids[i-1] == dom) { ++ log(L_IOCTL, "regulatory domain is currently set " ++ "to %d (0x%X): %s\n", i, dom, ++ acx_reg_domain_strings[i-1]); ++ *extra = i; ++ break; ++ } ++ } ++ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_short_preamble ++*/ ++static const char * const ++preamble_modes[] = { ++ "off", ++ "on", ++ "auto (peer capability dependent)", ++ "unknown mode, error" ++}; ++ ++static int ++acx_ioctl_set_short_preamble( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int i; ++ int result; ++ ++ FN_ENTER; ++ ++ if ((unsigned char)*extra > 2) { ++ result = -EINVAL; ++ goto end; ++ } ++ ++ acx_sem_lock(adev); ++ ++ adev->preamble_mode = (u8)*extra; ++ switch (adev->preamble_mode) { ++ case 0: /* long */ ++ adev->preamble_cur = 0; ++ break; ++ case 1: ++ /* short, kick incapable peers */ ++ adev->preamble_cur = 1; ++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) { ++ client_t *clt = &adev->sta_list[i]; ++ if (!clt->used) continue; ++ if (!(clt->cap_info & WF_MGMT_CAP_SHORT)) { ++ clt->used = CLIENT_EMPTY_SLOT_0; ++ } ++ } ++ switch (adev->mode) { ++ case ACX_MODE_2_STA: ++ if (adev->ap_client && !adev->ap_client->used) { ++ /* We kicked our AP :) */ ++ SET_BIT(adev->set_mask, GETSET_RESCAN); ++ } ++ } ++ break; ++ case 2: /* auto. short only if all peers are short-capable */ ++ adev->preamble_cur = 1; ++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) { ++ client_t *clt = &adev->sta_list[i]; ++ if (!clt->used) continue; ++ if (!(clt->cap_info & WF_MGMT_CAP_SHORT)) { ++ adev->preamble_cur = 0; ++ break; ++ } ++ } ++ break; ++ } ++ printk("new short preamble setting: configured %s, active %s\n", ++ preamble_modes[adev->preamble_mode], ++ preamble_modes[adev->preamble_cur]); ++ result = OK; ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_short_preamble ++*/ ++static int ++acx_ioctl_get_short_preamble( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ acx_sem_lock(adev); ++ ++ printk("current short preamble setting: configured %s, active %s\n", ++ preamble_modes[adev->preamble_mode], ++ preamble_modes[adev->preamble_cur]); ++ ++ *extra = (char)adev->preamble_mode; ++ ++ acx_sem_unlock(adev); ++ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_antenna ++** ++** TX and RX antenna can be set separately but this function good ++** for testing 0-4 bits ++*/ ++static int ++acx_ioctl_set_antenna( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ acx_sem_lock(adev); ++ ++ printk("old antenna value: 0x%02X (COMBINED bit mask)\n" ++ "Rx antenna selection:\n" ++ "0x00 ant. 1\n" ++ "0x40 ant. 2\n" ++ "0x80 full diversity\n" ++ "0xc0 partial diversity\n" ++ "0x0f dwell time mask (in units of us)\n" ++ "Tx antenna selection:\n" ++ "0x00 ant. 2\n" /* yep, those ARE reversed! */ ++ "0x20 ant. 1\n" ++ "new antenna value: 0x%02X\n", ++ adev->antenna, (u8)*extra); ++ ++ adev->antenna = (u8)*extra; ++ SET_BIT(adev->set_mask, GETSET_ANTENNA); ++ ++ acx_sem_unlock(adev); ++ ++ return -EINPROGRESS; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_antenna ++*/ ++static int ++acx_ioctl_get_antenna( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ /* no locking. it's pointless to lock a single load */ ++ printk("current antenna value: 0x%02X (COMBINED bit mask)\n" ++ "Rx antenna selection:\n" ++ "0x00 ant. 1\n" ++ "0x40 ant. 2\n" ++ "0x80 full diversity\n" ++ "0xc0 partial diversity\n" ++ "Tx antenna selection:\n" ++ "0x00 ant. 2\n" /* yep, those ARE reversed! */ ++ "0x20 ant. 1\n", adev->antenna); ++ ++ return 0; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_rx_antenna ++** ++** 0 = antenna1; 1 = antenna2; 2 = full diversity; 3 = partial diversity ++** Could anybody test which antenna is the external one? ++*/ ++static int ++acx_ioctl_set_rx_antenna( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ FN_ENTER; ++ ++ if (*extra > 3) { ++ result = -EINVAL; ++ goto end; ++ } ++ ++ printk("old antenna value: 0x%02X\n", adev->antenna); ++ ++ acx_sem_lock(adev); ++ ++ adev->antenna &= 0x3f; ++ SET_BIT(adev->antenna, (*extra << 6)); ++ SET_BIT(adev->set_mask, GETSET_ANTENNA); ++ printk("new antenna value: 0x%02X\n", adev->antenna); ++ result = -EINPROGRESS; ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_tx_antenna ++** ++** Arguments: 0 == antenna2; 1 == antenna1; ++** Could anybody test which antenna is the external one? ++*/ ++static int ++acx_ioctl_set_tx_antenna( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ FN_ENTER; ++ ++ if (*extra > 1) { ++ result = -EINVAL; ++ goto end; ++ } ++ ++ printk("old antenna value: 0x%02X\n", adev->antenna); ++ ++ acx_sem_lock(adev); ++ ++ adev->antenna &= ~0x30; ++ SET_BIT(adev->antenna, ((*extra & 0x01) << 5)); ++ SET_BIT(adev->set_mask, GETSET_ANTENNA); ++ printk("new antenna value: 0x%02X\n", adev->antenna); ++ result = -EINPROGRESS; ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_wlansniff ++** ++** can we just remove this in favor of monitor mode? --vda ++*/ ++static int ++acx_ioctl_wlansniff( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned int *params = (unsigned int*)extra; ++ unsigned int enable = (unsigned int)(params[0] > 0); ++ int result; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ /* not using printk() here, since it distorts kismet display ++ * when printk messages activated */ ++ log(L_IOCTL, "setting monitor to: 0x%02X\n", params[0]); ++ ++ switch (params[0]) { ++ case 0: ++ /* no monitor mode. hmm, should we simply ignore it ++ * or go back to enabling adev->netdev->type ARPHRD_ETHER? */ ++ break; ++ case 1: ++ adev->monitor_type = ARPHRD_IEEE80211_PRISM; ++ break; ++ case 2: ++ adev->monitor_type = ARPHRD_IEEE80211; ++ break; ++ } ++ ++ if (params[0]) { ++ adev->mode = ACX_MODE_MONITOR; ++ SET_BIT(adev->set_mask, GETSET_MODE); ++ } ++ ++ if (enable) { ++ adev->channel = params[1]; ++ SET_BIT(adev->set_mask, GETSET_RX); ++ } ++ result = -EINPROGRESS; ++ ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_unknown11 ++** FIXME: looks like some sort of "iwpriv kick_sta MAC" but it's broken ++*/ ++static int ++acx_ioctl_unknown11( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++#ifdef BROKEN ++ struct iw_param *vwrq = &wrqu->param; ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ client_t client; ++ int result; ++ ++ acx_sem_lock(adev); ++ acx_lock(adev, flags); ++ ++ acx_l_transmit_disassoc(adev, &client); ++ result = OK; ++ ++ acx_unlock(adev, flags); ++ acx_sem_unlock(adev); ++ ++ return result; ++#endif ++ return -EINVAL; ++} ++ ++ ++/*********************************************************************** ++** debug helper function to be able to debug various issues relatively easily ++*/ ++static int ++acx_ioctl_dbg_set_masks( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ const unsigned int *params = (unsigned int*)extra; ++ int result; ++ ++ acx_sem_lock(adev); ++ ++ log(L_IOCTL, "setting flags in settings mask: " ++ "get_mask %08X set_mask %08X\n" ++ "before: get_mask %08X set_mask %08X\n", ++ params[0], params[1], ++ adev->get_mask, adev->set_mask); ++ SET_BIT(adev->get_mask, params[0]); ++ SET_BIT(adev->set_mask, params[1]); ++ log(L_IOCTL, "after: get_mask %08X set_mask %08X\n", ++ adev->get_mask, adev->set_mask); ++ result = -EINPROGRESS; /* immediately call commit handler */ ++ ++ acx_sem_unlock(adev); ++ ++ return result; ++} ++ ++ ++/*********************************************************************** ++* acx_ioctl_set_rates ++* ++* This ioctl takes string parameter. Examples: ++* iwpriv wlan0 SetRates "1,2" ++* use 1 and 2 Mbit rates, both are in basic rate set ++* iwpriv wlan0 SetRates "1,2 5,11" ++* use 1,2,5.5,11 Mbit rates. 1 and 2 are basic ++* iwpriv wlan0 SetRates "1,2 5c,11c" ++* same ('c' means 'CCK modulation' and it is a default for 5 and 11) ++* iwpriv wlan0 SetRates "1,2 5p,11p" ++* use 1,2,5.5,11 Mbit, 1,2 are basic. 5 and 11 are using PBCC ++* iwpriv wlan0 SetRates "1,2,5,11 22p" ++* use 1,2,5.5,11,22 Mbit. 1,2,5.5 and 11 are basic. 22 is using PBCC ++* (this is the maximum acx100 can do (modulo x4 mode)) ++* iwpriv wlan0 SetRates "1,2,5,11 22" ++* same. 802.11 defines only PBCC modulation ++* for 22 and 33 Mbit rates, so there is no ambiguity ++* iwpriv wlan0 SetRates "1,2,5,11 6o,9o,12o,18o,24o,36o,48o,54o" ++* 1,2,5.5 and 11 are basic. 11g OFDM rates are enabled but ++* they are not in basic rate set. 22 Mbit is disabled. ++* iwpriv wlan0 SetRates "1,2,5,11 6,9,12,18,24,36,48,54" ++* same. OFDM is default for 11g rates except 22 and 33 Mbit, ++* thus 'o' is optional ++* iwpriv wlan0 SetRates "1,2,5,11 6d,9d,12d,18d,24d,36d,48d,54d" ++* 1,2,5.5 and 11 are basic. 11g CCK-OFDM rates are enabled ++* (acx111 does not support CCK-OFDM, driver will reject this cmd) ++* iwpriv wlan0 SetRates "6,9,12 18,24,36,48,54" ++* 6,9,12 are basic, rest of 11g rates is enabled. Using OFDM ++*/ ++#include "setrate.c" ++ ++/* disallow: 33Mbit (unsupported by hw) */ ++/* disallow: CCKOFDM (unsupported by hw) */ ++static int ++acx111_supported(int mbit, int modulation, void *opaque) ++{ ++ if (mbit==33) return -ENOTSUPP; ++ if (modulation==DOT11_MOD_CCKOFDM) return -ENOTSUPP; ++ return OK; ++} ++ ++static const u16 ++acx111mask[] = { ++ [DOT11_RATE_1 ] = RATE111_1 , ++ [DOT11_RATE_2 ] = RATE111_2 , ++ [DOT11_RATE_5 ] = RATE111_5 , ++ [DOT11_RATE_11] = RATE111_11, ++ [DOT11_RATE_22] = RATE111_22, ++ /* [DOT11_RATE_33] = */ ++ [DOT11_RATE_6 ] = RATE111_6 , ++ [DOT11_RATE_9 ] = RATE111_9 , ++ [DOT11_RATE_12] = RATE111_12, ++ [DOT11_RATE_18] = RATE111_18, ++ [DOT11_RATE_24] = RATE111_24, ++ [DOT11_RATE_36] = RATE111_36, ++ [DOT11_RATE_48] = RATE111_48, ++ [DOT11_RATE_54] = RATE111_54, ++}; ++ ++static u32 ++acx111_gen_mask(int mbit, int modulation, void *opaque) ++{ ++ /* lower 16 bits show selected 1, 2, CCK and OFDM rates */ ++ /* upper 16 bits show selected PBCC rates */ ++ u32 m = acx111mask[rate_mbit2enum(mbit)]; ++ if (modulation==DOT11_MOD_PBCC) ++ return m<<16; ++ return m; ++} ++ ++static int ++verify_rate(u32 rate, int chip_type) ++{ ++ /* never happens. be paranoid */ ++ if (!rate) return -EINVAL; ++ ++ /* disallow: mixing PBCC and CCK at 5 and 11Mbit ++ ** (can be supported, but needs complicated handling in tx code) */ ++ if (( rate & ((RATE111_11+RATE111_5)<<16) ) ++ && ( rate & (RATE111_11+RATE111_5) ) ++ ) { ++ return -ENOTSUPP; ++ } ++ if (CHIPTYPE_ACX100 == chip_type) { ++ if ( rate & ~(RATE111_ACX100_COMPAT+(RATE111_ACX100_COMPAT<<16)) ) ++ return -ENOTSUPP; ++ } ++ return 0; ++} ++ ++static int ++acx_ioctl_set_rates(struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ int result; ++ u32 brate = 0, orate = 0; /* basic, operational rate set */ ++ ++ FN_ENTER; ++ ++ log(L_IOCTL, "set_rates %s\n", extra); ++ result = fill_ratemasks(extra, &brate, &orate, ++ acx111_supported, acx111_gen_mask, 0); ++ if (result) goto end; ++ SET_BIT(orate, brate); ++ log(L_IOCTL, "brate %08X orate %08X\n", brate, orate); ++ ++ result = verify_rate(brate, adev->chip_type); ++ if (result) goto end; ++ result = verify_rate(orate, adev->chip_type); ++ if (result) goto end; ++ ++ acx_sem_lock(adev); ++ acx_lock(adev, flags); ++ ++ adev->rate_basic = brate; ++ adev->rate_oper = orate; ++ /* TODO: ideally, we shall monitor highest basic rate ++ ** which was successfully sent to every peer ++ ** (say, last we checked, everybody could hear 5.5 Mbits) ++ ** and use that for bcasts when we want to reach all peers. ++ ** For beacons, we probably shall use lowest basic rate ++ ** because we want to reach all *potential* new peers too */ ++ adev->rate_bcast = 1 << lowest_bit(brate); ++ if (IS_ACX100(adev)) ++ adev->rate_bcast100 = acx_rate111to100(adev->rate_bcast); ++ adev->rate_auto = !has_only_one_bit(orate); ++ acx_l_update_client_rates(adev, orate); ++ /* TODO: get rid of ratevector, build it only when needed */ ++ acx_l_update_ratevector(adev); ++ ++ /* Do/don't do tx rate fallback; beacon contents and rate */ ++ SET_BIT(adev->set_mask, SET_RATE_FALLBACK|SET_TEMPLATES); ++ result = -EINPROGRESS; ++ ++ acx_unlock(adev, flags); ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_get_phy_chan_busy_percentage ++*/ ++static int ++acx_ioctl_get_phy_chan_busy_percentage( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ struct { ++ u16 type; ++ u16 len; ++ u32 busytime; ++ u32 totaltime; ++ } ACX_PACKED usage; ++ int result; ++ ++ acx_sem_lock(adev); ++ ++ if (OK != acx_s_interrogate(adev, &usage, ACX1xx_IE_MEDIUM_USAGE)) { ++ result = NOT_OK; ++ goto end_unlock; ++ } ++ ++ usage.busytime = le32_to_cpu(usage.busytime); ++ usage.totaltime = le32_to_cpu(usage.totaltime); ++ ++ /* yes, this is supposed to be "Medium" (singular of media), ++ not "average"! OK, reword the message to make it obvious... */ ++ printk("%s: busy percentage of medium (since last invocation): %d%% " ++ "(%u of %u microseconds)\n", ++ ndev->name, ++ usage.busytime / ((usage.totaltime / 100) + 1), ++ usage.busytime, usage.totaltime); ++ ++ result = OK; ++ ++end_unlock: ++ acx_sem_unlock(adev); ++ ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_ed_threshold ++*/ ++static inline int ++acx_ioctl_set_ed_threshold( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ acx_sem_lock(adev); ++ ++ printk("old ED threshold value: %d\n", adev->ed_threshold); ++ adev->ed_threshold = (unsigned char)*extra; ++ printk("new ED threshold value: %d\n", (unsigned char)*extra); ++ SET_BIT(adev->set_mask, GETSET_ED_THRESH); ++ ++ acx_sem_unlock(adev); ++ ++ return -EINPROGRESS; ++} ++ ++ ++/*********************************************************************** ++** acx_ioctl_set_cca ++*/ ++static inline int ++acx_ioctl_set_cca( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ acx_sem_lock(adev); ++ ++ printk("old CCA value: 0x%02X\n", adev->cca); ++ adev->cca = (unsigned char)*extra; ++ printk("new CCA value: 0x%02X\n", (unsigned char)*extra); ++ SET_BIT(adev->set_mask, GETSET_CCA); ++ result = -EINPROGRESS; ++ ++ acx_sem_unlock(adev); ++ ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static const char * const ++scan_modes[] = { "active", "passive", "background" }; ++ ++static void ++acx_print_scan_params(acx_device_t *adev, const char* head) ++{ ++ printk("%s: %smode %d (%s), min chan time %dTU, " ++ "max chan time %dTU, max scan rate byte: %d\n", ++ adev->ndev->name, head, ++ adev->scan_mode, scan_modes[adev->scan_mode], ++ adev->scan_probe_delay, adev->scan_duration, adev->scan_rate); ++} ++ ++static int ++acx_ioctl_set_scan_params( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ const int *params = (int *)extra; ++ ++ acx_sem_lock(adev); ++ ++ acx_print_scan_params(adev, "old scan parameters: "); ++ if ((params[0] != -1) && (params[0] >= 0) && (params[0] <= 2)) ++ adev->scan_mode = params[0]; ++ if (params[1] != -1) ++ adev->scan_probe_delay = params[1]; ++ if (params[2] != -1) ++ adev->scan_duration = params[2]; ++ if ((params[3] != -1) && (params[3] <= 255)) ++ adev->scan_rate = params[3]; ++ acx_print_scan_params(adev, "new scan parameters: "); ++ SET_BIT(adev->set_mask, GETSET_RESCAN); ++ result = -EINPROGRESS; ++ ++ acx_sem_unlock(adev); ++ ++ return result; ++} ++ ++static int ++acx_ioctl_get_scan_params( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ int *params = (int *)extra; ++ ++ acx_sem_lock(adev); ++ ++ acx_print_scan_params(adev, "current scan parameters: "); ++ params[0] = adev->scan_mode; ++ params[1] = adev->scan_probe_delay; ++ params[2] = adev->scan_duration; ++ params[3] = adev->scan_rate; ++ result = OK; ++ ++ acx_sem_unlock(adev); ++ ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx100_ioctl_set_led_power( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ static const char * const led_modes[] = { "off", "on", "LinkQuality" }; ++ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result; ++ ++ acx_sem_lock(adev); ++ ++ printk("%s: power LED status: old %d (%s), ", ++ ndev->name, ++ adev->led_power, ++ led_modes[adev->led_power]); ++ adev->led_power = extra[0]; ++ if (adev->led_power > 2) adev->led_power = 2; ++ printk("new %d (%s)\n", ++ adev->led_power, ++ led_modes[adev->led_power]); ++ ++ if (adev->led_power == 2) { ++ printk("%s: max link quality setting: old %d, ", ++ ndev->name, adev->brange_max_quality); ++ if (extra[1]) ++ adev->brange_max_quality = extra[1]; ++ printk("new %d\n", adev->brange_max_quality); ++ } ++ ++ SET_BIT(adev->set_mask, GETSET_LED_POWER); ++ ++ result = -EINPROGRESS; ++ ++ acx_sem_unlock(adev); ++ ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++static inline int ++acx100_ioctl_get_led_power( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ acx_sem_lock(adev); ++ ++ extra[0] = adev->led_power; ++ if (adev->led_power == 2) ++ extra[1] = adev->brange_max_quality; ++ else ++ extra[1] = -1; ++ ++ acx_sem_unlock(adev); ++ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx111_ioctl_info( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->param; ++ if (!IS_PCI(ndev2adev(ndev))) ++ return OK; ++ return acx111pci_ioctl_info(ndev, info, vwrq, extra); ++} ++ ++ ++/*********************************************************************** ++*/ ++static int ++acx100_ioctl_set_phy_amp_bias( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ union iwreq_data *wrqu, ++ char *extra) ++{ ++ struct iw_param *vwrq = &wrqu->param; ++ if (IS_USB(ndev2adev(ndev))) { ++ printk("acx: set_phy_amp_bias() is not supported on USB\n"); ++ return OK; ++ } ++#ifdef ACX_MEM ++ return acx100mem_ioctl_set_phy_amp_bias(ndev, info, vwrq, extra); ++#else ++ return acx100pci_ioctl_set_phy_amp_bias(ndev, info, vwrq, extra); ++#endif ++} ++ ++ ++/*********************************************************************** ++*/ ++static const iw_handler acx_ioctl_handler[] = ++{ ++ acx_ioctl_commit, /* SIOCSIWCOMMIT */ ++ acx_ioctl_get_name, /* SIOCGIWNAME */ ++ NULL, /* SIOCSIWNWID */ ++ NULL, /* SIOCGIWNWID */ ++ acx_ioctl_set_freq, /* SIOCSIWFREQ */ ++ acx_ioctl_get_freq, /* SIOCGIWFREQ */ ++ acx_ioctl_set_mode, /* SIOCSIWMODE */ ++ acx_ioctl_get_mode, /* SIOCGIWMODE */ ++ acx_ioctl_set_sens, /* SIOCSIWSENS */ ++ acx_ioctl_get_sens, /* SIOCGIWSENS */ ++ NULL, /* SIOCSIWRANGE */ ++ acx_ioctl_get_range, /* SIOCGIWRANGE */ ++ NULL, /* SIOCSIWPRIV */ ++ NULL, /* SIOCGIWPRIV */ ++ NULL, /* SIOCSIWSTATS */ ++ NULL, /* SIOCGIWSTATS */ ++#if IW_HANDLER_VERSION > 4 ++ iw_handler_set_spy, /* SIOCSIWSPY */ ++ iw_handler_get_spy, /* SIOCGIWSPY */ ++ iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ ++ iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ ++#else /* IW_HANDLER_VERSION > 4 */ ++#ifdef WIRELESS_SPY ++ NULL /* acx_ioctl_set_spy FIXME */, /* SIOCSIWSPY */ ++ NULL /* acx_ioctl_get_spy */, /* SIOCGIWSPY */ ++#else /* WSPY */ ++ NULL, /* SIOCSIWSPY */ ++ NULL, /* SIOCGIWSPY */ ++#endif /* WSPY */ ++ NULL, /* [nothing] */ ++ NULL, /* [nothing] */ ++#endif /* IW_HANDLER_VERSION > 4 */ ++ acx_ioctl_set_ap, /* SIOCSIWAP */ ++ acx_ioctl_get_ap, /* SIOCGIWAP */ ++ NULL, /* [nothing] */ ++ acx_ioctl_get_aplist, /* SIOCGIWAPLIST */ ++ acx_ioctl_set_scan, /* SIOCSIWSCAN */ ++ acx_ioctl_get_scan, /* SIOCGIWSCAN */ ++ acx_ioctl_set_essid, /* SIOCSIWESSID */ ++ acx_ioctl_get_essid, /* SIOCGIWESSID */ ++ acx_ioctl_set_nick, /* SIOCSIWNICKN */ ++ acx_ioctl_get_nick, /* SIOCGIWNICKN */ ++ NULL, /* [nothing] */ ++ NULL, /* [nothing] */ ++ acx_ioctl_set_rate, /* SIOCSIWRATE */ ++ acx_ioctl_get_rate, /* SIOCGIWRATE */ ++ acx_ioctl_set_rts, /* SIOCSIWRTS */ ++ acx_ioctl_get_rts, /* SIOCGIWRTS */ ++#if ACX_FRAGMENTATION ++ acx_ioctl_set_frag, /* SIOCSIWFRAG */ ++ acx_ioctl_get_frag, /* SIOCGIWFRAG */ ++#else ++ NULL, /* SIOCSIWFRAG */ ++ NULL, /* SIOCGIWFRAG */ ++#endif ++ acx_ioctl_set_txpow, /* SIOCSIWTXPOW */ ++ acx_ioctl_get_txpow, /* SIOCGIWTXPOW */ ++ acx_ioctl_set_retry, /* SIOCSIWRETRY */ ++ acx_ioctl_get_retry, /* SIOCGIWRETRY */ ++ acx_ioctl_set_encode, /* SIOCSIWENCODE */ ++ acx_ioctl_get_encode, /* SIOCGIWENCODE */ ++ acx_ioctl_set_power, /* SIOCSIWPOWER */ ++ acx_ioctl_get_power, /* SIOCGIWPOWER */ ++}; ++ ++ ++/*********************************************************************** ++*/ ++ ++/* if you plan to reorder something, make sure to reorder all other places ++ * accordingly! */ ++/* SET/GET convention: SETs must have even position, GETs odd */ ++#define ACX100_IOCTL SIOCIWFIRSTPRIV ++enum { ++ ACX100_IOCTL_DEBUG = ACX100_IOCTL, ++ ACX100_IOCTL_GET__________UNUSED1, ++ ACX100_IOCTL_SET_PLED, ++ ACX100_IOCTL_GET_PLED, ++ ACX100_IOCTL_SET_RATES, ++ ACX100_IOCTL_LIST_DOM, ++ ACX100_IOCTL_SET_DOM, ++ ACX100_IOCTL_GET_DOM, ++ ACX100_IOCTL_SET_SCAN_PARAMS, ++ ACX100_IOCTL_GET_SCAN_PARAMS, ++ ACX100_IOCTL_SET_PREAMB, ++ ACX100_IOCTL_GET_PREAMB, ++ ACX100_IOCTL_SET_ANT, ++ ACX100_IOCTL_GET_ANT, ++ ACX100_IOCTL_RX_ANT, ++ ACX100_IOCTL_TX_ANT, ++ ACX100_IOCTL_SET_PHY_AMP_BIAS, ++ ACX100_IOCTL_GET_PHY_CHAN_BUSY, ++ ACX100_IOCTL_SET_ED, ++ ACX100_IOCTL_GET__________UNUSED3, ++ ACX100_IOCTL_SET_CCA, ++ ACX100_IOCTL_GET__________UNUSED4, ++ ACX100_IOCTL_MONITOR, ++ ACX100_IOCTL_TEST, ++ ACX100_IOCTL_DBG_SET_MASKS, ++ ACX111_IOCTL_INFO, ++ ACX100_IOCTL_DBG_SET_IO, ++ ACX100_IOCTL_DBG_GET_IO ++}; ++ ++ ++static const iw_handler acx_ioctl_private_handler[] = ++{ ++#if ACX_DEBUG ++[ACX100_IOCTL_DEBUG - ACX100_IOCTL] = acx_ioctl_set_debug, ++#endif ++[ACX100_IOCTL_SET_PLED - ACX100_IOCTL] = acx100_ioctl_set_led_power, ++[ACX100_IOCTL_GET_PLED - ACX100_IOCTL] = acx100_ioctl_get_led_power, ++[ACX100_IOCTL_SET_RATES - ACX100_IOCTL] = acx_ioctl_set_rates, ++[ACX100_IOCTL_LIST_DOM - ACX100_IOCTL] = acx_ioctl_list_reg_domain, ++[ACX100_IOCTL_SET_DOM - ACX100_IOCTL] = acx_ioctl_set_reg_domain, ++[ACX100_IOCTL_GET_DOM - ACX100_IOCTL] = acx_ioctl_get_reg_domain, ++[ACX100_IOCTL_SET_SCAN_PARAMS - ACX100_IOCTL] = acx_ioctl_set_scan_params, ++[ACX100_IOCTL_GET_SCAN_PARAMS - ACX100_IOCTL] = acx_ioctl_get_scan_params, ++[ACX100_IOCTL_SET_PREAMB - ACX100_IOCTL] = acx_ioctl_set_short_preamble, ++[ACX100_IOCTL_GET_PREAMB - ACX100_IOCTL] = acx_ioctl_get_short_preamble, ++[ACX100_IOCTL_SET_ANT - ACX100_IOCTL] = acx_ioctl_set_antenna, ++[ACX100_IOCTL_GET_ANT - ACX100_IOCTL] = acx_ioctl_get_antenna, ++[ACX100_IOCTL_RX_ANT - ACX100_IOCTL] = acx_ioctl_set_rx_antenna, ++[ACX100_IOCTL_TX_ANT - ACX100_IOCTL] = acx_ioctl_set_tx_antenna, ++[ACX100_IOCTL_SET_PHY_AMP_BIAS - ACX100_IOCTL] = acx100_ioctl_set_phy_amp_bias, ++[ACX100_IOCTL_GET_PHY_CHAN_BUSY - ACX100_IOCTL] = acx_ioctl_get_phy_chan_busy_percentage, ++[ACX100_IOCTL_SET_ED - ACX100_IOCTL] = acx_ioctl_set_ed_threshold, ++[ACX100_IOCTL_SET_CCA - ACX100_IOCTL] = acx_ioctl_set_cca, ++[ACX100_IOCTL_MONITOR - ACX100_IOCTL] = acx_ioctl_wlansniff, ++[ACX100_IOCTL_TEST - ACX100_IOCTL] = acx_ioctl_unknown11, ++[ACX100_IOCTL_DBG_SET_MASKS - ACX100_IOCTL] = acx_ioctl_dbg_set_masks, ++[ACX111_IOCTL_INFO - ACX100_IOCTL] = acx111_ioctl_info, ++}; ++ ++ ++static const struct iw_priv_args acx_ioctl_private_args[] = { ++#if ACX_DEBUG ++{ cmd : ACX100_IOCTL_DEBUG, ++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetDebug" }, ++#endif ++{ cmd : ACX100_IOCTL_SET_PLED, ++ set_args : IW_PRIV_TYPE_BYTE | 2, ++ get_args : 0, ++ name : "SetLEDPower" }, ++{ cmd : ACX100_IOCTL_GET_PLED, ++ set_args : 0, ++ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 2, ++ name : "GetLEDPower" }, ++{ cmd : ACX100_IOCTL_SET_RATES, ++ set_args : IW_PRIV_TYPE_CHAR | 256, ++ get_args : 0, ++ name : "SetRates" }, ++{ cmd : ACX100_IOCTL_LIST_DOM, ++ set_args : 0, ++ get_args : 0, ++ name : "ListRegDomain" }, ++{ cmd : ACX100_IOCTL_SET_DOM, ++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetRegDomain" }, ++{ cmd : ACX100_IOCTL_GET_DOM, ++ set_args : 0, ++ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ name : "GetRegDomain" }, ++{ cmd : ACX100_IOCTL_SET_SCAN_PARAMS, ++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4, ++ get_args : 0, ++ name : "SetScanParams" }, ++{ cmd : ACX100_IOCTL_GET_SCAN_PARAMS, ++ set_args : 0, ++ get_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4, ++ name : "GetScanParams" }, ++{ cmd : ACX100_IOCTL_SET_PREAMB, ++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetSPreamble" }, ++{ cmd : ACX100_IOCTL_GET_PREAMB, ++ set_args : 0, ++ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ name : "GetSPreamble" }, ++{ cmd : ACX100_IOCTL_SET_ANT, ++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetAntenna" }, ++{ cmd : ACX100_IOCTL_GET_ANT, ++ set_args : 0, ++ get_args : 0, ++ name : "GetAntenna" }, ++{ cmd : ACX100_IOCTL_RX_ANT, ++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetRxAnt" }, ++{ cmd : ACX100_IOCTL_TX_ANT, ++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetTxAnt" }, ++{ cmd : ACX100_IOCTL_SET_PHY_AMP_BIAS, ++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetPhyAmpBias"}, ++{ cmd : ACX100_IOCTL_GET_PHY_CHAN_BUSY, ++ set_args : 0, ++ get_args : 0, ++ name : "GetPhyChanBusy" }, ++{ cmd : ACX100_IOCTL_SET_ED, ++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetED" }, ++{ cmd : ACX100_IOCTL_SET_CCA, ++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, ++ get_args : 0, ++ name : "SetCCA" }, ++{ cmd : ACX100_IOCTL_MONITOR, ++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, ++ get_args : 0, ++ name : "monitor" }, ++{ cmd : ACX100_IOCTL_TEST, ++ set_args : 0, ++ get_args : 0, ++ name : "Test" }, ++{ cmd : ACX100_IOCTL_DBG_SET_MASKS, ++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, ++ get_args : 0, ++ name : "DbgSetMasks" }, ++{ cmd : ACX111_IOCTL_INFO, ++ set_args : 0, ++ get_args : 0, ++ name : "GetAcx111Info" }, ++{ cmd : ACX100_IOCTL_DBG_SET_IO, ++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4, ++ get_args : 0, ++ name : "DbgSetIO" }, ++{ cmd : ACX100_IOCTL_DBG_GET_IO, ++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 3, ++ get_args : 0, ++ name : "DbgGetIO" }, ++}; ++ ++ ++const struct iw_handler_def acx_ioctl_handler_def = ++{ ++ .num_standard = VEC_SIZE(acx_ioctl_handler), ++ .num_private = VEC_SIZE(acx_ioctl_private_handler), ++ .num_private_args = VEC_SIZE(acx_ioctl_private_args), ++ .standard = (iw_handler *) acx_ioctl_handler, ++ .private = (iw_handler *) acx_ioctl_private_handler, ++ .private_args = (struct iw_priv_args *) acx_ioctl_private_args, ++#if IW_HANDLER_VERSION > 5 ++ .get_wireless_stats = acx_e_get_wireless_stats ++#endif /* IW > 5 */ ++}; +Index: linux-2.6.23/drivers/net/wireless/acx/Kconfig +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/Kconfig 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,113 @@ ++config ACX ++ tristate "TI acx100/acx111 802.11b/g wireless chipsets" ++ depends on NET_RADIO && EXPERIMENTAL ++ select FW_LOADER ++ ---help--- ++ A driver for 802.11b/g wireless cards based on ++ Texas Instruments acx100 and acx111 chipsets. ++ ++ This driver supports Host AP mode that allows ++ your computer to act as an IEEE 802.11 access point. ++ This driver is new and experimental. ++ ++ Texas Instruments did not take part in development of this driver ++ in any way, shape or form. ++ ++ The driver can be compiled as a module and will be named "acx". ++ ++config ACX_PCI ++ bool "TI acx100/acx111 802.11b/g PCI" ++ depends on ACX && PCI ++ ---help--- ++ Include PCI and CardBus support in acx. ++ ++ acx chipsets need their firmware loaded at startup. ++ You will need to provide a firmware image via hotplug. ++ ++ Firmware may be in a form of single image 40-100kb in size ++ (a 'combined' firmware) or two images - main image ++ (again 40-100kb) and radio image (~10kb or less). ++ ++ Firmware images are requested from hotplug using following names: ++ ++ tiacx100 - main firmware image for acx100 chipset ++ tiacx100rNN - radio acx100 firmware for radio type NN ++ tiacx100cNN - combined acx100 firmware for radio type NN ++ tiacx111 - main acx111 firmware ++ tiacx111rNN - radio acx111 firmware for radio type NN ++ tiacx111cNN - combined acx111 firmware for radio type NN ++ ++ Driver will attempt to load combined image first. ++ If no such image is found, it will try to load main image ++ and radio image instead. ++ ++ Firmware files are not covered by GPL and are not distributed ++ with this driver for legal reasons. ++ ++config ACX_USB ++ bool "TI acx100/acx111 802.11b/g USB" ++ depends on ACX && (USB=y || USB=ACX) ++ ---help--- ++ Include USB support in acx. ++ ++ There is only one currently known device in this category, ++ D-Link DWL-120+, but newer devices seem to be on the horizon. ++ ++ acx chipsets need their firmware loaded at startup. ++ You will need to provide a firmware image via hotplug. ++ ++ Firmware for USB device is requested from hotplug ++ by the 'tiacx100usb' name. ++ ++ Firmware files are not covered by GPL and are not distributed ++ with this driver for legal reasons. ++ ++config ACX_MEM ++ bool "TI acx100/acx111 802.11b/g memory mapped slave 16 interface" ++ depends on ACX ++ ---help--- ++ acx chipsets need their firmware loaded at startup. ++ You will need to provide a firmware image via hotplug. ++ ++ Firmware for USB device is requested from hotplug ++ by the 'tiacx100usb' name. ++ ++ Firmware files are not covered by GPL and are not distributed ++ with this driver for legal reasons. ++ ++config ACX_CS ++ bool "TI acx100/acx111 802.11b/g cardbus interface" ++ depends on ACX ++ ---help--- ++ acx chipsets need their firmware loaded at startup. ++ You will need to provide a firmware image via hotplug. ++ ++ This driver is based on memory mapped driver. ++ ++ Firmware files are not covered by GPL and are not distributed ++ with this driver for legal reasons. ++ ++config ACX_HX4700 ++ tristate "ACX support for the iPAQ hx4700 using ACX_MEM" ++ depends on HX4700_CORE && ACX_MEM ++ ---help--- ++ Include memory interface support in acx for the iPAQ hx4700. ++ ++config ACX_HTCUNIVERSAL ++ tristate "ACX support for the HTC Universal using ACX_MEM" ++ depends on HTCUNIVERSAL_CORE && HTC_ASIC3 && ACX_MEM ++ ---help--- ++ Include memory interface support in acx for the HTC Universal. ++ ++config ACX_HTCSABLE ++ tristate "ACX support for the HTC Sable (IPAQ hw6915) using ACX_MEM" ++ depends on MACH_HW6900 && HTC_ASIC3 && ACX_MEM ++ ---help--- ++ Include memory interface support in acx for the HTC Sable (IPAQ hw6915). ++ ++config ACX_RX3000 ++ tristate "ACX support for the iPAQ RX3000 using ACX_MEM" ++ depends on MACH_RX3715 && ACX_MEM && LEDS_ASIC3 ++ ---help--- ++ Include memory interface support in acx for the IPAQ RX3000. ++ +Index: linux-2.6.23/drivers/net/wireless/acx/Makefile +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/Makefile 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,21 @@ ++#obj-m += acx.o ++ ++#acx-obj-y += pci.o ++#acx-obj-y += usb.o ++ ++#acx-objs := wlan.o conv.o ioctl.o common.o $(acx-obj-y) ++ ++# Use this if you have proper Kconfig integration: ++ ++obj-$(CONFIG_ACX) += acx.o ++obj-$(CONFIG_ACX_HX4700) += hx4700_acx.o ++obj-$(CONFIG_ACX_HTCUNIVERSAL) += htcuniversal_acx.o ++obj-$(CONFIG_ACX_HTCSABLE) += htcsable_acx.o ++obj-$(CONFIG_ACX_RX3000) += rx3000_acx.o ++# ++acx-obj-$(CONFIG_ACX_PCI) += pci.o ++acx-obj-$(CONFIG_ACX_USB) += usb.o ++acx-obj-$(CONFIG_ACX_MEM) += mem.o ++acx-obj-$(CONFIG_ACX_CS) += cs.o ++# ++acx-objs := wlan.o conv.o ioctl.o common.o $(acx-obj-y) +Index: linux-2.6.23/drivers/net/wireless/acx/mem.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/mem.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,5363 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++** ++** Slave memory interface support: ++** ++** Todd Blumer - SDG Systems ++** Bill Reese - HP ++** Eric McCorkle - Shadowsun ++*/ ++#define ACX_MEM 1 ++ ++/* ++ * non-zero makes it dump the ACX memory to the console then ++ * panic when you cat /proc/driver/acx_wlan0_diag ++ */ ++#define DUMP_MEM_DEFINED 1 ++ ++#define DUMP_MEM_DURING_DIAG 0 ++#define DUMP_IF_SLOW 0 ++ ++#define PATCH_AROUND_BAD_SPOTS 1 ++#define HX4700_FIRMWARE_CHECKSUM 0x0036862e ++#define HX4700_ALTERNATE_FIRMWARE_CHECKSUM 0x00368a75 ++ ++#include <linux/version.h> ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) ++#include <linux/config.h> ++#endif ++ ++/* Linux 2.6.18+ uses <linux/utsrelease.h> */ ++#ifndef UTS_RELEASE ++#include <linux/utsrelease.h> ++#endif ++ ++#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/sched.h> ++#include <linux/types.h> ++#include <linux/skbuff.h> ++#include <linux/slab.h> ++#include <linux/if_arp.h> ++#include <linux/irq.h> ++#include <linux/rtnetlink.h> ++#include <linux/wireless.h> ++#include <net/iw_handler.h> ++#include <linux/netdevice.h> ++#include <linux/ioport.h> ++#include <linux/pci.h> ++#include <linux/platform_device.h> ++#include <linux/pm.h> ++#include <linux/vmalloc.h> ++#include <linux/delay.h> ++#include <linux/workqueue.h> ++#include <linux/inetdevice.h> ++ ++#include "acx.h" ++#include "acx_hw.h" ++ ++/*********************************************************************** ++*/ ++ ++#define CARD_EEPROM_ID_SIZE 6 ++ ++#include <asm/io.h> ++ ++#define REG_ACX_VENDOR_ID 0x900 ++/* ++ * This is the vendor id on the HX4700, anyway ++ */ ++#define ACX_VENDOR_ID 0x8400104c ++ ++typedef enum { ++ ACX_SOFT_RESET = 0, ++ ++ ACX_SLV_REG_ADDR, ++ ACX_SLV_REG_DATA, ++ ACX_SLV_REG_ADATA, ++ ++ ACX_SLV_MEM_CP, ++ ACX_SLV_MEM_ADDR, ++ ACX_SLV_MEM_DATA, ++ ACX_SLV_MEM_CTL, ++} acxreg_t; ++ ++/*********************************************************************** ++*/ ++static void acxmem_i_tx_timeout(struct net_device *ndev); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id); ++#else ++static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id, struct pt_regs *regs); ++#endif ++static void acxmem_i_set_multicast_list(struct net_device *ndev); ++ ++static int acxmem_e_open(struct net_device *ndev); ++static int acxmem_e_close(struct net_device *ndev); ++static void acxmem_s_up(struct net_device *ndev); ++static void acxmem_s_down(struct net_device *ndev); ++ ++static void dump_acxmem (acx_device_t *adev, u32 start, int length); ++static int acxmem_complete_hw_reset (acx_device_t *adev); ++static void acxmem_s_delete_dma_regions(acx_device_t *adev); ++ ++static struct platform_device *resume_pdev; ++ ++static int ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++acxmem_e_suspend(struct platform_device *pdev, pm_message_t state); ++#else ++acxmem_e_suspend(struct device *pdev, u32 state); ++#endif ++static void ++fw_resumer(struct work_struct *notused); ++//fw_resumer( void *data ); ++ ++static int acx_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) ++{ ++ struct net_device *ndev = ptr; ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ /* ++ * Upper level ioctl() handlers send a NETDEV_CHANGEADDR if the MAC address changes. ++ */ ++ ++ if (NETDEV_CHANGEADDR == event) { ++ /* ++ * the upper layers put the new MAC address in ndev->dev_addr; we just copy ++ * it over and update the ACX with it. ++ */ ++ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr); ++ adev->set_mask |= GETSET_STATION_ID; ++ acx_s_update_card_settings (adev); ++ } ++ ++ return 0; ++} ++ ++static struct notifier_block acx_netdev_notifier = { ++ .notifier_call = acx_netdev_event, ++}; ++ ++/*********************************************************************** ++** Register access ++*/ ++ ++/* Pick one */ ++/* #define INLINE_IO static */ ++#define INLINE_IO static inline ++ ++INLINE_IO u32 ++read_id_register (acx_device_t *adev) ++{ ++ writel (0x24, &adev->iobase[ACX_SLV_REG_ADDR]); ++ return readl (&adev->iobase[ACX_SLV_REG_DATA]); ++} ++ ++INLINE_IO u32 ++read_reg32(acx_device_t *adev, unsigned int offset) ++{ ++ u32 val; ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ return readl(((u8*)adev->iobase) + addr); ++ } ++ ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ val = readl( &adev->iobase[ACX_SLV_REG_DATA] ); ++ ++ return val; ++} ++ ++INLINE_IO u16 ++read_reg16(acx_device_t *adev, unsigned int offset) ++{ ++ u16 lo; ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ return readw(((u8 *) adev->iobase) + addr); ++ } ++ ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ lo = readw( (u16 *)&adev->iobase[ACX_SLV_REG_DATA] ); ++ ++ return lo; ++} ++ ++INLINE_IO u8 ++read_reg8(acx_device_t *adev, unsigned int offset) ++{ ++ u8 lo; ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) ++ return readb(((u8 *)adev->iobase) + addr); ++ ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ lo = readw( (u8 *)&adev->iobase[ACX_SLV_REG_DATA] ); ++ ++ return (u8)lo; ++} ++ ++INLINE_IO void ++write_reg32(acx_device_t *adev, unsigned int offset, u32 val) ++{ ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ writel(val, ((u8*)adev->iobase) + addr); ++ return; ++ } ++ ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ writel( val, &adev->iobase[ACX_SLV_REG_DATA] ); ++} ++ ++INLINE_IO void ++write_reg16(acx_device_t *adev, unsigned int offset, u16 val) ++{ ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ writew(val, ((u8 *)adev->iobase) + addr); ++ return; ++ } ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ writew( val, (u16 *) &adev->iobase[ACX_SLV_REG_DATA] ); ++} ++ ++INLINE_IO void ++write_reg8(acx_device_t *adev, unsigned int offset, u8 val) ++{ ++ u32 addr; ++ ++ if (offset > IO_ACX_ECPU_CTRL) ++ addr = offset; ++ else ++ addr = adev->io[offset]; ++ ++ if (addr < 0x20) { ++ writeb(val, ((u8 *) adev->iobase) + addr); ++ return; ++ } ++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] ); ++ writeb( val, (u8 *)&adev->iobase[ACX_SLV_REG_DATA] ); ++} ++ ++/* Handle PCI posting properly: ++ * Make sure that writes reach the adapter in case they require to be executed ++ * *before* the next write, by reading a random (and safely accessible) register. ++ * This call has to be made if there is no read following (which would flush the data ++ * to the adapter), yet the written data has to reach the adapter immediately. */ ++INLINE_IO void ++write_flush(acx_device_t *adev) ++{ ++ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */ ++ /* faster version (accesses the first register, IO_ACX_SOFT_RESET, ++ * which should also be safe): */ ++ (void) readl(adev->iobase); ++} ++ ++INLINE_IO void ++set_regbits (acx_device_t *adev, unsigned int offset, u32 bits) { ++ u32 tmp; ++ ++ tmp = read_reg32 (adev, offset); ++ tmp = tmp | bits; ++ write_reg32 (adev, offset, tmp); ++ write_flush (adev); ++} ++ ++INLINE_IO void ++clear_regbits (acx_device_t *adev, unsigned int offset, u32 bits) { ++ u32 tmp; ++ ++ tmp = read_reg32 (adev, offset); ++ tmp = tmp & ~bits; ++ write_reg32 (adev, offset, tmp); ++ write_flush (adev); ++} ++ ++/* ++ * Copy from PXA memory to the ACX memory. This assumes both the PXA and ACX ++ * addresses are 32 bit aligned. Count is in bytes. ++ */ ++INLINE_IO void ++write_slavemem32 (acx_device_t *adev, u32 slave_address, u32 val) ++{ ++ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0); ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address); ++ udelay (10); ++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, val); ++} ++ ++INLINE_IO u32 ++read_slavemem32 (acx_device_t *adev, u32 slave_address) ++{ ++ u32 val; ++ ++ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0); ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address); ++ udelay (10); ++ val = read_reg32 (adev, IO_ACX_SLV_MEM_DATA); ++ ++ return val; ++} ++ ++INLINE_IO void ++write_slavemem8 (acx_device_t *adev, u32 slave_address, u8 val) ++{ ++ u32 data; ++ u32 base; ++ int offset; ++ ++ /* ++ * Get the word containing the target address and the byte offset in that word. ++ */ ++ base = slave_address & ~3; ++ offset = (slave_address & 3) * 8; ++ ++ data = read_slavemem32 (adev, base); ++ data &= ~(0xff << offset); ++ data |= val << offset; ++ write_slavemem32 (adev, base, data); ++} ++ ++INLINE_IO u8 ++read_slavemem8 (acx_device_t *adev, u32 slave_address) ++{ ++ u8 val; ++ u32 base; ++ u32 data; ++ int offset; ++ ++ base = slave_address & ~3; ++ offset = (slave_address & 3) * 8; ++ ++ data = read_slavemem32 (adev, base); ++ ++ val = (data >> offset) & 0xff; ++ ++ return val; ++} ++ ++/* ++ * doesn't split across word boundaries ++ */ ++INLINE_IO void ++write_slavemem16 (acx_device_t *adev, u32 slave_address, u16 val) ++{ ++ u32 data; ++ u32 base; ++ int offset; ++ ++ /* ++ * Get the word containing the target address and the byte offset in that word. ++ */ ++ base = slave_address & ~3; ++ offset = (slave_address & 3) * 8; ++ ++ data = read_slavemem32 (adev, base); ++ data &= ~(0xffff << offset); ++ data |= val << offset; ++ write_slavemem32 (adev, base, data); ++} ++ ++/* ++ * doesn't split across word boundaries ++ */ ++INLINE_IO u16 ++read_slavemem16 (acx_device_t *adev, u32 slave_address) ++{ ++ u16 val; ++ u32 base; ++ u32 data; ++ int offset; ++ ++ base = slave_address & ~3; ++ offset = (slave_address & 3) * 8; ++ ++ data = read_slavemem32 (adev, base); ++ ++ val = (data >> offset) & 0xffff; ++ ++ return val; ++} ++ ++/* ++ * Copy from slave memory ++ * ++ * TODO - rewrite using address autoincrement, handle partial words ++ */ ++void ++copy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count) { ++ u32 tmp = 0; ++ u8 *ptmp = (u8 *) &tmp; ++ ++ /* ++ * Right now I'm making the assumption that the destination is aligned, but ++ * I'd better check. ++ */ ++ if ((u32) destination & 3) { ++ printk ("acx copy_from_slavemem: warning! destination not word-aligned!\n"); ++ } ++ ++ while (count >= 4) { ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source); ++ udelay (10); ++ *((u32 *) destination) = read_reg32 (adev, IO_ACX_SLV_MEM_DATA); ++ count -= 4; ++ source += 4; ++ destination += 4; ++ } ++ ++ /* ++ * If the word reads above didn't satisfy the count, read one more word ++ * and transfer a byte at a time until the request is satisfied. ++ */ ++ if (count) { ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source); ++ udelay (10); ++ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA); ++ while (count--) { ++ *destination++ = *ptmp++; ++ } ++ } ++} ++ ++/* ++ * Copy to slave memory ++ * ++ * TODO - rewrite using autoincrement, handle partial words ++ */ ++void ++copy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count) ++{ ++ u32 tmp = 0; ++ u8* ptmp = (u8 *) &tmp; ++ static u8 src[512]; /* make static to avoid huge stack objects */ ++ ++ /* ++ * For now, make sure the source is word-aligned by copying it to a word-aligned ++ * buffer. Someday rewrite to avoid the extra copy. ++ */ ++ if (count > sizeof (src)) { ++ printk ("acx copy_to_slavemem: Warning! buffer overflow!\n"); ++ count = sizeof (src); ++ } ++ memcpy (src, source, count); ++ source = src; ++ ++ while (count >= 4) { ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination); ++ udelay (10); ++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, *((u32 *) source)); ++ count -= 4; ++ source += 4; ++ destination += 4; ++ } ++ ++ /* ++ * If there are leftovers read the next word from the acx and merge in ++ * what they want to write. ++ */ ++ if (count) { ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination); ++ udelay (10); ++ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA); ++ while (count--) { ++ *ptmp++ = *source++; ++ } ++ /* ++ * reset address in case we're currently in auto-increment mode ++ */ ++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination); ++ udelay (10); ++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, tmp); ++ udelay (10); ++ } ++ ++} ++ ++/* ++ * Block copy to slave buffers using memory block chain mode. Copies to the ACX ++ * transmit buffer structure with minimal intervention on our part. ++ * Interrupts should be disabled when calling this. ++ */ ++void ++chaincopy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count) ++{ ++ u32 val; ++ u32 *data = (u32 *) source; ++ static u8 aligned_source[WLAN_A4FR_MAXLEN_WEP_FCS]; ++ ++ /* ++ * Warn if the pointers don't look right. Destination must fit in [23:5] with ++ * zero elsewhere and source should be 32 bit aligned. ++ * This should never happen since we're in control of both, but I want to know about ++ * it if it does. ++ */ ++ if ((destination & 0x00ffffe0) != destination) { ++ printk ("acx chaincopy: destination block 0x%04x not aligned!\n", destination); ++ } ++ if (count > sizeof aligned_source) { ++ printk( KERN_ERR "chaincopy_to_slavemem overflow!\n" ); ++ count = sizeof aligned_source; ++ } ++ if ((u32) source & 3) { ++ memcpy (aligned_source, source, count); ++ data = (u32 *) aligned_source; ++ } ++ ++ /* ++ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment ++ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word ++ */ ++ val = 2 << 16 | 1 << 2; ++ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]); ++ ++ /* ++ * SLV_MEM_CP[23:5] = start of 1st block ++ * SLV_MEM_CP[3:2] = offset to memblkptr = 0 ++ */ ++ val = destination & 0x00ffffe0; ++ writel (val, &adev->iobase[ACX_SLV_MEM_CP]); ++ ++ /* ++ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5] ++ */ ++ val = (destination & 0x00ffffe0) + (1<<2); ++ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]); ++ ++ /* ++ * Write the data to the slave data register, rounding up to the end ++ * of the word containing the last byte (hence the > 0) ++ */ ++ while (count > 0) { ++ writel (*data++, &adev->iobase[ACX_SLV_MEM_DATA]); ++ count -= 4; ++ } ++} ++ ++ ++/* ++ * Block copy from slave buffers using memory block chain mode. Copies from the ACX ++ * receive buffer structures with minimal intervention on our part. ++ * Interrupts should be disabled when calling this. ++ */ ++void ++chaincopy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count) ++{ ++ u32 val; ++ u32 *data = (u32 *) destination; ++ static u8 aligned_destination[WLAN_A4FR_MAXLEN_WEP_FCS]; ++ int saved_count = count; ++ ++ /* ++ * Warn if the pointers don't look right. Destination must fit in [23:5] with ++ * zero elsewhere and source should be 32 bit aligned. ++ * Turns out the network stack sends unaligned things, so fix them before ++ * copying to the ACX. ++ */ ++ if ((source & 0x00ffffe0) != source) { ++ printk ("acx chaincopy: source block 0x%04x not aligned!\n", source); ++ dump_acxmem (adev, 0, 0x10000); ++ } ++ if ((u32) destination & 3) { ++ //printk ("acx chaincopy: data destination not word aligned!\n"); ++ data = (u32 *) aligned_destination; ++ if (count > sizeof aligned_destination) { ++ printk( KERN_ERR "chaincopy_from_slavemem overflow!\n" ); ++ count = sizeof aligned_destination; ++ } ++ } ++ ++ /* ++ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment ++ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word ++ */ ++ val = (2 << 16) | (1 << 2); ++ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]); ++ ++ /* ++ * SLV_MEM_CP[23:5] = start of 1st block ++ * SLV_MEM_CP[3:2] = offset to memblkptr = 0 ++ */ ++ val = source & 0x00ffffe0; ++ writel (val, &adev->iobase[ACX_SLV_MEM_CP]); ++ ++ /* ++ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5] ++ */ ++ val = (source & 0x00ffffe0) + (1<<2); ++ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]); ++ ++ /* ++ * Read the data from the slave data register, rounding up to the end ++ * of the word containing the last byte (hence the > 0) ++ */ ++ while (count > 0) { ++ *data++ = readl (&adev->iobase[ACX_SLV_MEM_DATA]); ++ count -= 4; ++ } ++ ++ /* ++ * If the destination wasn't aligned, we would have saved it in ++ * the aligned buffer, so copy it where it should go. ++ */ ++ if ((u32) destination & 3) { ++ memcpy (destination, aligned_destination, saved_count); ++ } ++} ++ ++char ++printable (char c) ++{ ++ return ((c >= 20) && (c < 127)) ? c : '.'; ++} ++ ++#if DUMP_MEM_DEFINED > 0 ++static void ++dump_acxmem (acx_device_t *adev, u32 start, int length) ++{ ++ int i; ++ u8 buf[16]; ++ ++ while (length > 0) { ++ printk ("%04x ", start); ++ copy_from_slavemem (adev, buf, start, 16); ++ for (i = 0; (i < 16) && (i < length); i++) { ++ printk ("%02x ", buf[i]); ++ } ++ for (i = 0; (i < 16) && (i < length); i++) { ++ printk ("%c", printable (buf[i])); ++ } ++ printk ("\n"); ++ start += 16; ++ length -= 16; ++ } ++} ++#endif ++ ++static void ++enable_acx_irq(acx_device_t *adev); ++static void ++disable_acx_irq(acx_device_t *adev); ++ ++/* ++ * Return an acx pointer to the next transmit data block. ++ */ ++u32 ++allocate_acx_txbuf_space (acx_device_t *adev, int count) { ++ u32 block, next, last_block; ++ int blocks_needed; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&adev->txbuf_lock, flags); ++ /* ++ * Take 4 off the memory block size to account for the reserved word at the start of ++ * the block. ++ */ ++ blocks_needed = count / (adev->memblocksize - 4); ++ if (count % (adev->memblocksize - 4)) ++ blocks_needed++; ++ ++ if (blocks_needed <= adev->acx_txbuf_blocks_free) { ++ /* ++ * Take blocks at the head of the free list. ++ */ ++ last_block = block = adev->acx_txbuf_free; ++ ++ /* ++ * Follow block pointers through the requested number of blocks both to ++ * find the new head of the free list and to set the flags for the blocks ++ * appropriately. ++ */ ++ while (blocks_needed--) { ++ /* ++ * Keep track of the last block of the allocation ++ */ ++ last_block = adev->acx_txbuf_free; ++ ++ /* ++ * Make sure the end control flag is not set. ++ */ ++ next = read_slavemem32 (adev, adev->acx_txbuf_free) & 0x7ffff; ++ write_slavemem32 (adev, adev->acx_txbuf_free, next); ++ ++ /* ++ * Update the new head of the free list ++ */ ++ adev->acx_txbuf_free = next << 5; ++ adev->acx_txbuf_blocks_free--; ++ ++ } ++ ++ /* ++ * Flag the last block both by clearing out the next pointer ++ * and marking the control field. ++ */ ++ write_slavemem32 (adev, last_block, 0x02000000); ++ ++ /* ++ * If we're out of buffers make sure the free list pointer is NULL ++ */ ++ if (!adev->acx_txbuf_blocks_free) { ++ adev->acx_txbuf_free = 0; ++ } ++ } ++ else { ++ block = 0; ++ } ++ spin_unlock_irqrestore (&adev->txbuf_lock, flags); ++ return block; ++} ++ ++/* ++ * Return buffer space back to the pool by following the next pointers until we find ++ * the block marked as the end. Point the last block to the head of the free list, ++ * then update the head of the free list to point to the newly freed memory. ++ * This routine gets called in interrupt context, so it shouldn't block to protect ++ * the integrity of the linked list. The ISR already holds the lock. ++ */ ++void ++reclaim_acx_txbuf_space (acx_device_t *adev, u32 blockptr) { ++ u32 cur, last, next; ++ unsigned long flags; ++ ++ spin_lock_irqsave (&adev->txbuf_lock, flags); ++ if ((blockptr >= adev->acx_txbuf_start) && ++ (blockptr <= adev->acx_txbuf_start + ++ (adev->acx_txbuf_numblocks - 1) * adev->memblocksize)) { ++ cur = blockptr; ++ do { ++ last = cur; ++ next = read_slavemem32 (adev, cur); ++ ++ /* ++ * Advance to the next block in this allocation ++ */ ++ cur = (next & 0x7ffff) << 5; ++ ++ /* ++ * This block now counts as free. ++ */ ++ adev->acx_txbuf_blocks_free++; ++ } while (!(next & 0x02000000)); ++ ++ /* ++ * last now points to the last block of that allocation. Update the pointer ++ * in that block to point to the free list and reset the free list to the ++ * first block of the free call. If there were no free blocks, make sure ++ * the new end of the list marks itself as truly the end. ++ */ ++ if (adev->acx_txbuf_free) { ++ write_slavemem32 (adev, last, adev->acx_txbuf_free >> 5); ++ } ++ else { ++ write_slavemem32 (adev, last, 0x02000000); ++ } ++ adev->acx_txbuf_free = blockptr; ++ } ++ spin_unlock_irqrestore(&adev->txbuf_lock, flags); ++} ++ ++/* ++ * Initialize the pieces managing the transmit buffer pool on the ACX. The transmit ++ * buffer is a circular queue with one 32 bit word reserved at the beginning of each ++ * block. The upper 13 bits are a control field, of which only 0x02000000 has any ++ * meaning. The lower 19 bits are the address of the next block divided by 32. ++ */ ++void ++init_acx_txbuf (acx_device_t *adev) { ++ ++ /* ++ * acx100_s_init_memory_pools set up txbuf_start and txbuf_numblocks for us. ++ * All we need to do is reset the rest of the bookeeping. ++ */ ++ ++ adev->acx_txbuf_free = adev->acx_txbuf_start; ++ adev->acx_txbuf_blocks_free = adev->acx_txbuf_numblocks; ++ ++ /* ++ * Initialization leaves the last transmit pool block without a pointer back to ++ * the head of the list, but marked as the end of the list. That's how we want ++ * to see it, too, so leave it alone. This is only ever called after a firmware ++ * reset, so the ACX memory is in the state we want. ++ */ ++ ++} ++ ++INLINE_IO int ++adev_present(acx_device_t *adev) ++{ ++ /* fast version (accesses the first register, IO_ACX_SOFT_RESET, ++ * which should be safe): */ ++ return readl(adev->iobase) != 0xffffffff; ++} ++ ++/*********************************************************************** ++*/ ++static inline txdesc_t* ++get_txdesc(acx_device_t *adev, int index) ++{ ++ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size); ++} ++ ++static inline txdesc_t* ++advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc) ++{ ++ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size); ++} ++ ++static txhostdesc_t* ++get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ return &adev->txhostdesc_start[index*2]; ++} ++ ++static inline client_t* ++get_txc(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ return adev->txc[index]; ++} ++ ++static inline u16 ++get_txr(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ index /= adev->txdesc_size; ++ return adev->txr[index]; ++} ++ ++static inline void ++put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return; ++ } ++ adev->txc[index] = c; ++ adev->txr[index] = r111; ++} ++ ++ ++/*********************************************************************** ++** EEPROM and PHY read/write helpers ++*/ ++/*********************************************************************** ++** acxmem_read_eeprom_byte ++** ++** Function called to read an octet in the EEPROM. ++** ++** This function is used by acxmem_e_probe to check if the ++** connected card is a legal one or not. ++** ++** Arguments: ++** adev ptr to acx_device structure ++** addr address to read in the EEPROM ++** charbuf ptr to a char. This is where the read octet ++** will be stored ++*/ ++int ++acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf) ++{ ++ int result; ++ int count; ++ ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ /* scheduling away instead of CPU burning loop ++ * doesn't seem to work here at all: ++ * awful delay, sometimes also failure. ++ * Doesn't matter anyway (only small delay). */ ++ if (unlikely(!--count)) { ++ printk("%s: timeout waiting for EEPROM read\n", ++ adev->ndev->name); ++ result = NOT_OK; ++ goto fail; ++ } ++ cpu_relax(); ++ } ++ ++ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA); ++ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf); ++ result = OK; ++ ++fail: ++ return result; ++} ++ ++ ++/*********************************************************************** ++** We don't lock hw accesses here since we never r/w eeprom in IRQ ++** Note: this function sleeps only because of GFP_KERNEL alloc ++*/ ++#ifdef UNUSED ++int ++acxmem_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf) ++{ ++ u8 *data_verify = NULL; ++ unsigned long flags; ++ int count, i; ++ int result = NOT_OK; ++ u16 gpio_orig; ++ ++ printk("acx: WARNING! I would write to EEPROM now. " ++ "Since I really DON'T want to unless you know " ++ "what you're doing (THIS CODE WILL PROBABLY " ++ "NOT WORK YET!), I will abort that now. And " ++ "definitely make sure to make a " ++ "/proc/driver/acx_wlan0_eeprom backup copy first!!! " ++ "(the EEPROM content includes the PCI config header!! " ++ "If you kill important stuff, then you WILL " ++ "get in trouble and people DID get in trouble already)\n"); ++ return OK; ++ ++ FN_ENTER; ++ ++ data_verify = kmalloc(len, GFP_KERNEL); ++ if (!data_verify) { ++ goto end; ++ } ++ ++ /* first we need to enable the OE (EEPROM Output Enable) GPIO line ++ * to be able to write to the EEPROM. ++ * NOTE: an EEPROM writing success has been reported, ++ * but you probably have to modify GPIO_OUT, too, ++ * and you probably need to activate a different GPIO ++ * line instead! */ ++ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE); ++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1); ++ write_flush(adev); ++ ++ /* ok, now start writing the data out */ ++ for (i = 0; i < len; i++) { ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i); ++ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i)); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 1); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ if (unlikely(!--count)) { ++ printk("WARNING, DANGER!!! " ++ "Timeout waiting for EEPROM write\n"); ++ goto end; ++ } ++ cpu_relax(); ++ } ++ } ++ ++ /* disable EEPROM writing */ ++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig); ++ write_flush(adev); ++ ++ /* now start a verification run */ ++ for (i = 0; i < len; i++) { ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ if (unlikely(!--count)) { ++ printk("timeout waiting for EEPROM read\n"); ++ goto end; ++ } ++ cpu_relax(); ++ } ++ ++ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA); ++ } ++ ++ if (0 == memcmp(charbuf, data_verify, len)) ++ result = OK; /* read data matches, success */ ++ ++end: ++ kfree(data_verify); ++ FN_EXIT1(result); ++ return result; ++} ++#endif /* UNUSED */ ++ ++ ++/*********************************************************************** ++** acxmem_s_read_phy_reg ++** ++** Messing with rx/tx disabling and enabling here ++** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic ++*/ ++int ++acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf) ++{ ++ int result = NOT_OK; ++ int count; ++ ++ FN_ENTER; ++ ++ write_reg32(adev, IO_ACX_PHY_ADDR, reg); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_PHY_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg32(adev, IO_ACX_PHY_CTL)) { ++ /* scheduling away instead of CPU burning loop ++ * doesn't seem to work here at all: ++ * awful delay, sometimes also failure. ++ * Doesn't matter anyway (only small delay). */ ++ if (unlikely(!--count)) { ++ printk("%s: timeout waiting for phy read\n", ++ adev->ndev->name); ++ *charbuf = 0; ++ goto fail; ++ } ++ cpu_relax(); ++ } ++ ++ log(L_DEBUG, "count was %u\n", count); ++ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA); ++ ++ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg); ++ result = OK; ++ goto fail; /* silence compiler warning */ ++fail: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value) ++{ ++ int count; ++ FN_ENTER; ++ ++ /* mprusko said that 32bit accesses result in distorted sensitivity ++ * on his card. Unconfirmed, looks like it's not true (most likely since we ++ * now properly flush writes). */ ++ write_reg32(adev, IO_ACX_PHY_DATA, value); ++ write_reg32(adev, IO_ACX_PHY_ADDR, reg); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_PHY_CTL, 1); ++ write_flush(adev); ++ ++ count = 0xffff; ++ while (read_reg32(adev, IO_ACX_PHY_CTL)) { ++ /* scheduling away instead of CPU burning loop ++ * doesn't seem to work here at all: ++ * awful delay, sometimes also failure. ++ * Doesn't matter anyway (only small delay). */ ++ if (unlikely(!--count)) { ++ printk("%s: timeout waiting for phy read\n", ++ adev->ndev->name); ++ goto fail; ++ } ++ cpu_relax(); ++ } ++ ++ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg); ++ fail: ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++#define NO_AUTO_INCREMENT 1 ++ ++/*********************************************************************** ++** acxmem_s_write_fw ++** ++** Write the firmware image into the card. ++** ++** Arguments: ++** adev wlan device structure ++** fw_image firmware image. ++** ++** Returns: ++** 1 firmware image corrupted ++** 0 success ++*/ ++static int ++acxmem_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset) ++{ ++ int len, size, checkMismatch = -1; ++ u32 sum, v32, tmp, id; ++ /* we skip the first four bytes which contain the control sum */ ++ const u8 *p = (u8*)fw_image + 4; ++ ++ /* start the image checksum by adding the image size value */ ++ sum = p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ ++#ifdef NOPE ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */ ++#else ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */ ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */ ++ write_flush(adev); ++#endif ++#endif ++ len = 0; ++ size = le32_to_cpu(fw_image->size) & (~3); ++ ++ while (likely(len < size)) { ++ v32 = be32_to_cpu(*(u32*)p); ++ sum += p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ len += 4; ++ ++#ifdef NOPE ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4); ++ write_flush(adev); ++#endif ++ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32); ++ write_flush(adev); ++#endif ++ write_slavemem32 (adev, offset + len - 4, v32); ++ ++ id = read_id_register (adev); ++ ++ /* ++ * check the data written ++ */ ++ tmp = read_slavemem32 (adev, offset + len - 4); ++ if (checkMismatch && (tmp != v32)) { ++ printk ("first data mismatch at 0x%08x good 0x%08x bad 0x%08x id 0x%08x\n", ++ offset + len - 4, v32, tmp, id); ++ checkMismatch = 0; ++ } ++ } ++ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n", ++ size, sum, le32_to_cpu(fw_image->chksum)); ++ ++ /* compare our checksum with the stored image checksum */ ++ return (sum != le32_to_cpu(fw_image->chksum)); ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_validate_fw ++** ++** Compare the firmware image given with ++** the firmware image written into the card. ++** ++** Arguments: ++** adev wlan device structure ++** fw_image firmware image. ++** ++** Returns: ++** NOT_OK firmware image corrupted or not correctly written ++** OK success ++*/ ++static int ++acxmem_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image, ++ u32 offset) ++{ ++ u32 sum, v32, w32; ++ int len, size; ++ int result = OK; ++ /* we skip the first four bytes which contain the control sum */ ++ const u8 *p = (u8*)fw_image + 4; ++ ++ /* start the image checksum by adding the image size value */ ++ sum = p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ ++ write_reg32(adev, IO_ACX_SLV_END_CTL, 0); ++ ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */ ++#else ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */ ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */ ++#endif ++ ++ len = 0; ++ size = le32_to_cpu(fw_image->size) & (~3); ++ ++ while (likely(len < size)) { ++ v32 = be32_to_cpu(*(u32*)p); ++ p += 4; ++ len += 4; ++ ++#ifdef NOPE ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4); ++#endif ++ udelay(10); ++ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA); ++#endif ++ w32 = read_slavemem32 (adev, offset + len - 4); ++ ++ if (unlikely(w32 != v32)) { ++ printk("acx: FATAL: firmware upload: " ++ "data parts at offset %d don't match\n(0x%08X vs. 0x%08X)!\n" ++ "I/O timing issues or defective memory, with DWL-xx0+? " ++ "ACX_IO_WIDTH=16 may help. Please report\n", ++ len, v32, w32); ++ result = NOT_OK; ++ break; ++ } ++ ++ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24); ++ } ++ ++ /* sum control verification */ ++ if (result != NOT_OK) { ++ if (sum != le32_to_cpu(fw_image->chksum)) { ++ printk("acx: FATAL: firmware upload: " ++ "checksums don't match!\n"); ++ result = NOT_OK; ++ } ++ } ++ ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_upload_fw ++** ++** Called from acx_reset_dev ++*/ ++static int ++acxmem_s_upload_fw(acx_device_t *adev) ++{ ++ firmware_image_t *fw_image = NULL; ++ int res = NOT_OK; ++ int try; ++ u32 file_size; ++ char *filename = "WLANGEN.BIN"; ++#ifdef PATCH_AROUND_BAD_SPOTS ++ u32 offset; ++ int i; ++ /* ++ * arm-linux-objdump -d patch.bin, or ++ * od -Ax -t x4 patch.bin after finding the bounds ++ * of the .text section with arm-linux-objdump -s patch.bin ++ */ ++ u32 patch[] = { ++ 0xe584c030, 0xe59fc008, ++ 0xe92d1000, 0xe59fc004, 0xe8bd8000, 0x0000080c, ++ 0x0000aa68, 0x605a2200, 0x2c0a689c, 0x2414d80a, ++ 0x2f00689f, 0x1c27d007, 0x06241e7c, 0x2f000e24, ++ 0xe000d1f6, 0x602e6018, 0x23036468, 0x480203db, ++ 0x60ca6003, 0xbdf0750a, 0xffff0808 ++ }; ++#endif ++ ++ FN_ENTER; ++ /* No combined image; tell common we need the radio firmware, too */ ++ adev->need_radio_fw = 1; ++ ++ fw_image = acx_s_read_fw(adev->dev, filename, &file_size); ++ if (!fw_image) { ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++ } ++ ++ for (try = 1; try <= 5; try++) { ++ res = acxmem_s_write_fw(adev, fw_image, 0); ++ log(L_DEBUG|L_INIT, "acx_write_fw (main): %d\n", res); ++ if (OK == res) { ++ res = acxmem_s_validate_fw(adev, fw_image, 0); ++ log(L_DEBUG|L_INIT, "acx_validate_fw " ++ "(main): %d\n", res); ++ } ++ ++ if (OK == res) { ++ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED); ++ break; ++ } ++ printk("acx: firmware upload attempt #%d FAILED, " ++ "retrying...\n", try); ++ acx_s_msleep(1000); /* better wait for a while... */ ++ } ++ ++#ifdef PATCH_AROUND_BAD_SPOTS ++ /* ++ * Only want to do this if the firmware is exactly what we expect for an ++ * iPaq 4700; otherwise, bad things would ensue. ++ */ ++ if ((HX4700_FIRMWARE_CHECKSUM == fw_image->chksum) || ++ (HX4700_ALTERNATE_FIRMWARE_CHECKSUM == fw_image->chksum)) { ++ /* ++ * Put the patch after the main firmware image. 0x950c contains ++ * the ACX's idea of the end of the firmware. Use that location to ++ * load ours (which depends on that location being 0xab58) then ++ * update that location to point to after ours. ++ */ ++ ++ offset = read_slavemem32 (adev, 0x950c); ++ ++ log (L_DEBUG, "acx: patching in at 0x%04x\n", offset); ++ ++ for (i = 0; i < sizeof(patch) / sizeof(patch[0]); i++) { ++ write_slavemem32 (adev, offset, patch[i]); ++ offset += sizeof(u32); ++ } ++ ++ /* ++ * Patch the instruction at 0x0804 to branch to our ARM patch at 0xab58 ++ */ ++ write_slavemem32 (adev, 0x0804, 0xea000000 + (0xab58-0x0804-8)/4); ++ ++ /* ++ * Patch the instructions at 0x1f40 to branch to our Thumb patch at 0xab74 ++ * ++ * 4a00 ldr r2, [pc, #0] ++ * 4710 bx r2 ++ * .data 0xab74+1 ++ */ ++ write_slavemem32 (adev, 0x1f40, 0x47104a00); ++ write_slavemem32 (adev, 0x1f44, 0x0000ab74+1); ++ ++ /* ++ * Bump the end of the firmware up to beyond our patch. ++ */ ++ write_slavemem32 (adev, 0x950c, offset); ++ ++ } ++#endif ++ ++ vfree(fw_image); ++ ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_upload_radio ++** ++** Uploads the appropriate radio module firmware into the card. ++*/ ++int ++acxmem_s_upload_radio(acx_device_t *adev) ++{ ++ acx_ie_memmap_t mm; ++ firmware_image_t *radio_image; ++ acx_cmd_radioinit_t radioinit; ++ int res = NOT_OK; ++ int try; ++ u32 offset; ++ u32 size; ++ char filename[sizeof("RADIONN.BIN")]; ++ ++ if (!adev->need_radio_fw) return OK; ++ ++ FN_ENTER; ++ ++ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP); ++ offset = le32_to_cpu(mm.CodeEnd); ++ ++ snprintf(filename, sizeof(filename), "RADIO%02x.BIN", ++ adev->radio_type); ++ radio_image = acx_s_read_fw(adev->dev, filename, &size); ++ if (!radio_image) { ++ printk("acx: can't load radio module '%s'\n", filename); ++ goto fail; ++ } ++ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0); ++ ++ for (try = 1; try <= 5; try++) { ++ res = acxmem_s_write_fw(adev, radio_image, offset); ++ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res); ++ if (OK == res) { ++ res = acxmem_s_validate_fw(adev, radio_image, offset); ++ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res); ++ } ++ ++ if (OK == res) ++ break; ++ printk("acx: radio firmware upload attempt #%d FAILED, " ++ "retrying...\n", try); ++ acx_s_msleep(1000); /* better wait for a while... */ ++ } ++ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0); ++ radioinit.offset = cpu_to_le32(offset); ++ ++ /* no endian conversion needed, remains in card CPU area: */ ++ radioinit.len = radio_image->size; ++ ++ vfree(radio_image); ++ ++ if (OK != res) ++ goto fail; ++ ++ /* will take a moment so let's have a big timeout */ ++ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT, ++ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000)); ++ ++ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP); ++ ++fail: ++ FN_EXIT1(res); ++ return res; ++} ++ ++/*********************************************************************** ++** acxmem_l_reset_mac ++** ++** MAC will be reset ++** Call context: reset_dev ++*/ ++static void ++acxmem_l_reset_mac(acx_device_t *adev) ++{ ++ int count; ++ FN_ENTER; ++ ++ /* halt eCPU */ ++ set_regbits (adev, IO_ACX_ECPU_CTRL, 0x1); ++ ++ /* now do soft reset of eCPU, set bit */ ++ set_regbits (adev, IO_ACX_SOFT_RESET, 0x1); ++ log(L_DEBUG, "%s: enable soft reset...\n", __func__); ++ ++ /* Windows driver sleeps here for a while with this sequence */ ++ for (count = 0; count < 200; count++) { ++ udelay (50); ++ } ++ ++ /* now clear bit again: deassert eCPU reset */ ++ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__); ++ clear_regbits (adev, IO_ACX_SOFT_RESET, 0x1); ++ ++ /* now start a burst read from initial EEPROM */ ++ set_regbits (adev, IO_ACX_EE_START, 0x1); ++ ++ /* ++ * Windows driver sleeps here for a while with this sequence ++ */ ++ for (count = 0; count < 200; count++) { ++ udelay (50); ++ } ++ ++ /* Windows driver writes 0x10000 to register 0x808 here */ ++ ++ write_reg32 (adev, 0x808, 0x10000); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_verify_init ++*/ ++static int ++acxmem_s_verify_init(acx_device_t *adev) ++{ ++ int result = NOT_OK; ++ unsigned long timeout; ++ ++ FN_ENTER; ++ ++ timeout = jiffies + 2*HZ; ++ for (;;) { ++ u32 irqstat = read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES); ++ if ((irqstat != 0xFFFFFFFF) && (irqstat & HOST_INT_FCS_THRESHOLD)) { ++ result = OK; ++ write_reg32(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD); ++ break; ++ } ++ if (time_after(jiffies, timeout)) ++ break; ++ /* Init may take up to ~0.5 sec total */ ++ acx_s_msleep(50); ++ } ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** A few low-level helpers ++** ++** Note: these functions are not protected by lock ++** and thus are never allowed to be called from IRQ. ++** Also they must not race with fw upload which uses same hw regs ++*/ ++ ++/*********************************************************************** ++** acxmem_write_cmd_type_status ++*/ ++ ++static inline void ++acxmem_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status) ++{ ++ write_slavemem32 (adev, (u32) adev->cmd_area, type | (status << 16)); ++ write_flush(adev); ++} ++ ++ ++/*********************************************************************** ++** acxmem_read_cmd_type_status ++*/ ++static u32 ++acxmem_read_cmd_type_status(acx_device_t *adev) ++{ ++ u32 cmd_type, cmd_status; ++ ++ cmd_type = read_slavemem32 (adev, (u32) adev->cmd_area); ++ ++ cmd_status = (cmd_type >> 16); ++ cmd_type = (u16)cmd_type; ++ ++ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n", ++ cmd_type, cmd_status, ++ acx_cmd_status_str(cmd_status)); ++ ++ return cmd_status; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_reset_dev ++** ++** Arguments: ++** netdevice that contains the adev variable ++** Returns: ++** NOT_OK on fail ++** OK on success ++** Side effects: ++** device is hard reset ++** Call context: ++** acxmem_e_probe ++** Comment: ++** This resets the device using low level hardware calls ++** as well as uploads and verifies the firmware to the card ++*/ ++ ++static inline void ++init_mboxes(acx_device_t *adev) ++{ ++ u32 cmd_offs, info_offs; ++ ++ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS); ++ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS); ++ adev->cmd_area = (u8*) cmd_offs; ++ adev->info_area = (u8*) info_offs; ++ /* ++ log(L_DEBUG, "iobase2=%p\n" ++ */ ++ log( L_DEBUG, "cmd_mbox_offset=%X cmd_area=%p\n" ++ "info_mbox_offset=%X info_area=%p\n", ++ cmd_offs, adev->cmd_area, ++ info_offs, adev->info_area); ++} ++ ++ ++static inline void ++read_eeprom_area(acx_device_t *adev) ++{ ++#if ACX_DEBUG > 1 ++ int offs; ++ u8 tmp; ++ ++ for (offs = 0x8c; offs < 0xb9; offs++) ++ acxmem_read_eeprom_byte(adev, offs, &tmp); ++#endif ++} ++ ++static int ++acxmem_s_reset_dev(acx_device_t *adev) ++{ ++ const char* msg = ""; ++ unsigned long flags; ++ int result = NOT_OK; ++ u16 hardware_info; ++ u16 ecpu_ctrl; ++ int count; ++ u32 tmp; ++ ++ FN_ENTER; ++ /* ++ write_reg32 (adev, IO_ACX_SLV_MEM_CP, 0); ++ */ ++ /* reset the device to make sure the eCPU is stopped ++ * to upload the firmware correctly */ ++ ++ acx_lock(adev, flags); ++ ++ /* Windows driver does some funny things here */ ++ /* ++ * clear bit 0x200 in register 0x2A0 ++ */ ++ clear_regbits (adev, 0x2A0, 0x200); ++ ++ /* ++ * Set bit 0x200 in ACX_GPIO_OUT ++ */ ++ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200); ++ ++ /* ++ * read register 0x900 until its value is 0x8400104C, sleeping ++ * in between reads if it's not immediate ++ */ ++ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID); ++ count = 500; ++ while (count-- && (tmp != ACX_VENDOR_ID)) { ++ mdelay (10); ++ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID); ++ } ++ ++ /* end what Windows driver does */ ++ ++ acxmem_l_reset_mac(adev); ++ ++ ecpu_ctrl = read_reg32(adev, IO_ACX_ECPU_CTRL) & 1; ++ if (!ecpu_ctrl) { ++ msg = "eCPU is already running. "; ++ goto end_unlock; ++ } ++ ++#ifdef WE_DONT_NEED_THAT_DO_WE ++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) { ++ /* eCPU most likely means "embedded CPU" */ ++ msg = "eCPU did not start after boot from flash. "; ++ goto end_unlock; ++ } ++ ++ /* check sense on reset flags */ ++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) { ++ printk("%s: eCPU did not start after boot (SOR), " ++ "is this fatal?\n", adev->ndev->name); ++ } ++#endif ++ /* scan, if any, is stopped now, setting corresponding IRQ bit */ ++ adev->irq_status |= HOST_INT_SCAN_COMPLETE; ++ ++ acx_unlock(adev, flags); ++ ++ /* need to know radio type before fw load */ ++ /* Need to wait for arrival of this information in a loop, ++ * most probably since eCPU runs some init code from EEPROM ++ * (started burst read in reset_mac()) which also ++ * sets the radio type ID */ ++ ++ count = 0xffff; ++ do { ++ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION); ++ if (!--count) { ++ msg = "eCPU didn't indicate radio type"; ++ goto end_fail; ++ } ++ cpu_relax(); ++ } while (!(hardware_info & 0xff00)); /* radio type still zero? */ ++ printk("ACX radio type 0x%02x\n", (hardware_info >> 8) & 0xff); ++ /* printk("DEBUG: count %d\n", count); */ ++ adev->form_factor = hardware_info & 0xff; ++ adev->radio_type = hardware_info >> 8; ++ ++ /* load the firmware */ ++ if (OK != acxmem_s_upload_fw(adev)) ++ goto end_fail; ++ ++ /* acx_s_msleep(10); this one really shouldn't be required */ ++ ++ /* now start eCPU by clearing bit */ ++ clear_regbits (adev, IO_ACX_ECPU_CTRL, 0x1); ++ log(L_DEBUG, "booted eCPU up and waiting for completion...\n"); ++ ++ /* Windows driver clears bit 0x200 in register 0x2A0 here */ ++ clear_regbits (adev, 0x2A0, 0x200); ++ ++ /* Windows driver sets bit 0x200 in ACX_GPIO_OUT here */ ++ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200); ++ /* wait for eCPU bootup */ ++ if (OK != acxmem_s_verify_init(adev)) { ++ msg = "timeout waiting for eCPU. "; ++ goto end_fail; ++ } ++ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n"); ++ init_mboxes(adev); ++ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0); ++ ++ /* test that EEPROM is readable */ ++ read_eeprom_area(adev); ++ ++ result = OK; ++ goto end; ++ ++/* Finish error message. Indicate which function failed */ ++end_unlock: ++ acx_unlock(adev, flags); ++end_fail: ++ printk("acx: %sreset_dev() FAILED\n", msg); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_issue_cmd_timeo ++** ++** Sends command to fw, extract result ++** ++** NB: we do _not_ take lock inside, so be sure to not touch anything ++** which may interfere with IRQ handler operation ++** ++** TODO: busy wait is a bit silly, so: ++** 1) stop doing many iters - go to sleep after first ++** 2) go to waitqueue based approach: wait, not poll! ++*/ ++#undef FUNC ++#define FUNC "issue_cmd" ++ ++#if !ACX_DEBUG ++int ++acxmem_s_issue_cmd_timeo( ++ acx_device_t *adev, ++ unsigned int cmd, ++ void *buffer, ++ unsigned buflen, ++ unsigned cmd_timeout) ++{ ++#else ++int ++acxmem_s_issue_cmd_timeo_debug( ++ acx_device_t *adev, ++ unsigned cmd, ++ void *buffer, ++ unsigned buflen, ++ unsigned cmd_timeout, ++ const char* cmdstr) ++{ ++ unsigned long start = jiffies; ++#endif ++ const char *devname; ++ unsigned counter; ++ u16 irqtype; ++ int i, j; ++ u8 *p; ++ u16 cmd_status; ++ unsigned long timeout; ++ ++ FN_ENTER; ++ ++ devname = adev->ndev->name; ++ if (!devname || !devname[0] || devname[4]=='%') ++ devname = "acx"; ++ ++ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n", ++ cmdstr, buflen, cmd_timeout, ++ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1); ++ ++ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) { ++ printk("%s: "FUNC"(): firmware is not loaded yet, " ++ "cannot execute commands!\n", devname); ++ goto bad; ++ } ++ ++ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) { ++ printk("input buffer (len=%u):\n", buflen); ++ acx_dump_bytes(buffer, buflen); ++ } ++ ++ /* wait for firmware to become idle for our command submission */ ++ timeout = HZ/5; ++ counter = (timeout * 1000 / HZ) - 1; /* in ms */ ++ timeout += jiffies; ++ do { ++ cmd_status = acxmem_read_cmd_type_status(adev); ++ /* Test for IDLE state */ ++ if (!cmd_status) ++ break; ++ if (counter % 8 == 0) { ++ if (time_after(jiffies, timeout)) { ++ counter = 0; ++ break; ++ } ++ /* we waited 8 iterations, no luck. Sleep 8 ms */ ++ acx_s_msleep(8); ++ } ++ } while (likely(--counter)); ++ ++ if (!counter) { ++ /* the card doesn't get idle, we're in trouble */ ++ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n", ++ devname, cmd_status); ++#if DUMP_IF_SLOW > 0 ++ dump_acxmem (adev, 0, 0x10000); ++ panic ("not idle"); ++#endif ++ goto bad; ++ } else if (counter < 190) { /* if waited >10ms... */ ++ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. " ++ "Please report\n", 199 - counter); ++ } ++ ++ /* now write the parameters of the command if needed */ ++ if (buffer && buflen) { ++ /* if it's an INTERROGATE command, just pass the length ++ * of parameters to read, as data */ ++#if CMD_DISCOVERY ++ if (cmd == ACX1xx_CMD_INTERROGATE) ++ memset_io(adev->cmd_area + 4, 0xAA, buflen); ++#endif ++ /* ++ * slave memory version ++ */ ++ copy_to_slavemem (adev, (u32) (adev->cmd_area + 4), buffer, ++ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen); ++ } ++ /* now write the actual command type */ ++ acxmem_write_cmd_type_status(adev, cmd, 0); ++ ++ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */ ++ adev->irq_status &= ~HOST_INT_CMD_COMPLETE; ++ ++ /* execute command */ ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD); ++ write_flush(adev); ++ ++ /* wait for firmware to process command */ ++ ++ /* Ensure nonzero and not too large timeout. ++ ** Also converts e.g. 100->99, 200->199 ++ ** which is nice but not essential */ ++ cmd_timeout = (cmd_timeout-1) | 1; ++ if (unlikely(cmd_timeout > 1199)) ++ cmd_timeout = 1199; ++ ++ /* we schedule away sometimes (timeout can be large) */ ++ counter = cmd_timeout; ++ timeout = jiffies + cmd_timeout * HZ / 1000; ++ do { ++ if (!adev->irqs_active) { /* IRQ disabled: poll */ ++ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES); ++ if (irqtype & HOST_INT_CMD_COMPLETE) { ++ write_reg16(adev, IO_ACX_IRQ_ACK, ++ HOST_INT_CMD_COMPLETE); ++ break; ++ } ++ } else { /* Wait when IRQ will set the bit */ ++ irqtype = adev->irq_status; ++ if (irqtype & HOST_INT_CMD_COMPLETE) ++ break; ++ } ++ ++ if (counter % 8 == 0) { ++ if (time_after(jiffies, timeout)) { ++ counter = 0; ++ break; ++ } ++ /* we waited 8 iterations, no luck. Sleep 8 ms */ ++ acx_s_msleep(8); ++ } ++ } while (likely(--counter)); ++ ++ /* save state for debugging */ ++ cmd_status = acxmem_read_cmd_type_status(adev); ++ ++ /* put the card in IDLE state */ ++ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0); ++ ++ if (!counter) { /* timed out! */ ++ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. " ++ "irq bits:0x%04X irq_status:0x%04X timeout:%dms " ++ "cmd_status:%d (%s)\n", ++ devname, (adev->irqs_active) ? "waiting" : "polling", ++ irqtype, adev->irq_status, cmd_timeout, ++ cmd_status, acx_cmd_status_str(cmd_status)); ++ printk("%s: "FUNC"(): device irq status 0x%04x\n", ++ devname, read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES)); ++ printk("%s: "FUNC"(): IO_ACX_IRQ_MASK 0x%04x IO_ACX_FEMR 0x%04x\n", ++ devname, ++ read_reg16 (adev, IO_ACX_IRQ_MASK), ++ read_reg16 (adev, IO_ACX_FEMR)); ++ if (read_reg16 (adev, IO_ACX_IRQ_MASK) == 0xffff) { ++ printk ("acxmem: firmware probably hosed - reloading\n"); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++ { ++ pm_message_t state; ++ acxmem_e_suspend (resume_pdev, state); ++ } ++#else ++ acxmem_e_suspend (adev->dev, 0); ++#endif ++ { ++ struct work_struct *notused; ++ fw_resumer (notused); ++ } ++ } ++ ++ goto bad; ++ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */ ++ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. " ++ "count:%d. Please report\n", ++ (adev->irqs_active) ? "waited" : "polled", ++ cmd_timeout - counter, counter); ++ } ++ ++ if (1 != cmd_status) { /* it is not a 'Success' */ ++ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). " ++ "Took %dms of %d\n", ++ devname, cmd_status, acx_cmd_status_str(cmd_status), ++ cmd_timeout - counter, cmd_timeout); ++ /* zero out result buffer ++ * WARNING: this will trash stack in case of illegally large input ++ * length! */ ++ if (buflen > 388) { ++ /* ++ * 388 is maximum command length ++ */ ++ printk ("invalid length 0x%08x\n", buflen); ++ buflen = 388; ++ } ++ p = (u8 *) buffer; ++ for (i = 0; i < buflen; i+= 16) { ++ printk ("%04x:", i); ++ for (j = 0; (j < 16) && (i+j < buflen); j++) { ++ printk (" %02x", *p++); ++ } ++ printk ("\n"); ++ } ++ ++ if (buffer && buflen) ++ memset(buffer, 0, buflen); ++ goto bad; ++ } ++ ++ /* read in result parameters if needed */ ++ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) { ++ copy_from_slavemem (adev, buffer, (u32) (adev->cmd_area + 4), buflen); ++ if (acx_debug & L_DEBUG) { ++ printk("output buffer (len=%u): ", buflen); ++ acx_dump_bytes(buffer, buflen); ++ } ++ } ++ ++/* ok: */ ++ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n", ++ cmdstr, jiffies - start); ++ FN_EXIT1(OK); ++ return OK; ++ ++bad: ++ /* Give enough info so that callers can avoid ++ ** printing their own diagnostic messages */ ++#if ACX_DEBUG ++ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr); ++#else ++ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd); ++#endif ++ dump_stack(); ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++#if defined(NONESSENTIAL_FEATURES) ++typedef struct device_id { ++ unsigned char id[6]; ++ char *descr; ++ char *type; ++} device_id_t; ++ ++static const device_id_t ++device_ids[] = ++{ ++ { ++ {'G', 'l', 'o', 'b', 'a', 'l'}, ++ NULL, ++ NULL, ++ }, ++ { ++ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, ++ "uninitialized", ++ "SpeedStream SS1021 or Gigafast WF721-AEX" ++ }, ++ { ++ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85}, ++ "non-standard", ++ "DrayTek Vigor 520" ++ }, ++ { ++ {'?', '?', '?', '?', '?', '?'}, ++ "non-standard", ++ "Level One WPC-0200" ++ }, ++ { ++ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, ++ "empty", ++ "DWL-650+ variant" ++ } ++}; ++ ++static void ++acx_show_card_eeprom_id(acx_device_t *adev) ++{ ++ unsigned char buffer[CARD_EEPROM_ID_SIZE]; ++ int i; ++ ++ memset(&buffer, 0, CARD_EEPROM_ID_SIZE); ++ /* use direct EEPROM access */ ++ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) { ++ if (OK != acxmem_read_eeprom_byte(adev, ++ ACX100_EEPROM_ID_OFFSET + i, ++ &buffer[i])) { ++ printk("acx: reading EEPROM FAILED\n"); ++ break; ++ } ++ } ++ ++ for (i = 0; i < VEC_SIZE(device_ids); i++) { ++ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) { ++ if (device_ids[i].descr) { ++ printk("acx: EEPROM card ID string check " ++ "found %s card ID: is this %s?\n", ++ device_ids[i].descr, device_ids[i].type); ++ } ++ break; ++ } ++ } ++ if (i == VEC_SIZE(device_ids)) { ++ printk("acx: EEPROM card ID string check found " ++ "unknown card: expected 'Global', got '%.*s\'. " ++ "Please report\n", CARD_EEPROM_ID_SIZE, buffer); ++ } ++} ++#endif /* NONESSENTIAL_FEATURES */ ++ ++/*********************************************************************** ++** acxmem_free_desc_queues ++** ++** Releases the queues that have been allocated, the ++** others have been initialised to NULL so this ++** function can be used if only part of the queues were allocated. ++*/ ++ ++void ++acxmem_free_desc_queues(acx_device_t *adev) ++{ ++#define ACX_FREE_QUEUE(size, ptr, phyaddr) \ ++ if (ptr) { \ ++ kfree(ptr); \ ++ ptr = NULL; \ ++ size = 0; \ ++ } ++ ++ FN_ENTER; ++ ++ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy); ++ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy); ++ ++ adev->txdesc_start = NULL; ++ ++ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy); ++ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy); ++ ++ adev->rxdesc_start = NULL; ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_delete_dma_regions ++*/ ++static void ++acxmem_s_delete_dma_regions(acx_device_t *adev) ++{ ++ unsigned long flags; ++ ++ FN_ENTER; ++ /* disable radio Tx/Rx. Shouldn't we use the firmware commands ++ * here instead? Or are we that much down the road that it's no ++ * longer possible here? */ ++ /* ++ * slave memory interface really doesn't like this. ++ */ ++ /* ++ write_reg16(adev, IO_ACX_ENABLE, 0); ++ */ ++ ++ acx_s_msleep(100); ++ ++ acx_lock(adev, flags); ++ acxmem_free_desc_queues(adev); ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_probe ++** ++** Probe routine called when a PCI device w/ matching ID is found. ++** Here's the sequence: ++** - Allocate the PCI resources. ++** - Read the PCMCIA attribute memory to make sure we have a WLAN card ++** - Reset the MAC ++** - Initialize the dev and wlan data ++** - Initialize the MAC ++** ++** pdev - ptr to pci device structure containing info about pci configuration ++** id - ptr to the device id entry that matched this device ++*/ ++static const u16 ++IO_ACX100[] = ++{ ++ 0x0000, /* IO_ACX_SOFT_RESET */ ++ ++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */ ++ 0x0018, /* IO_ACX_SLV_MEM_DATA */ ++ 0x001c, /* IO_ACX_SLV_MEM_CTL */ ++ 0x0020, /* IO_ACX_SLV_END_CTL */ ++ ++ 0x0034, /* IO_ACX_FEMR */ ++ ++ 0x007c, /* IO_ACX_INT_TRIG */ ++ 0x0098, /* IO_ACX_IRQ_MASK */ ++ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */ ++ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */ ++ 0x00ac, /* IO_ACX_IRQ_ACK */ ++ 0x00b0, /* IO_ACX_HINT_TRIG */ ++ ++ 0x0104, /* IO_ACX_ENABLE */ ++ ++ 0x0250, /* IO_ACX_EEPROM_CTL */ ++ 0x0254, /* IO_ACX_EEPROM_ADDR */ ++ 0x0258, /* IO_ACX_EEPROM_DATA */ ++ 0x025c, /* IO_ACX_EEPROM_CFG */ ++ ++ 0x0268, /* IO_ACX_PHY_ADDR */ ++ 0x026c, /* IO_ACX_PHY_DATA */ ++ 0x0270, /* IO_ACX_PHY_CTL */ ++ ++ 0x0290, /* IO_ACX_GPIO_OE */ ++ ++ 0x0298, /* IO_ACX_GPIO_OUT */ ++ ++ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */ ++ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */ ++ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */ ++ ++ 0x02d0, /* IO_ACX_EE_START */ ++ 0x02d4, /* IO_ACX_SOR_CFG */ ++ 0x02d8 /* IO_ACX_ECPU_CTRL */ ++}; ++ ++static const u16 ++IO_ACX111[] = ++{ ++ 0x0000, /* IO_ACX_SOFT_RESET */ ++ ++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */ ++ 0x0018, /* IO_ACX_SLV_MEM_DATA */ ++ 0x001c, /* IO_ACX_SLV_MEM_CTL */ ++ 0x0020, /* IO_ACX_SLV_MEM_CP */ ++ ++ 0x0034, /* IO_ACX_FEMR */ ++ ++ 0x00b4, /* IO_ACX_INT_TRIG */ ++ 0x00d4, /* IO_ACX_IRQ_MASK */ ++ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */ ++ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */ ++ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */ ++ 0x00e8, /* IO_ACX_IRQ_ACK */ ++ 0x00ec, /* IO_ACX_HINT_TRIG */ ++ ++ 0x01d0, /* IO_ACX_ENABLE */ ++ ++ 0x0338, /* IO_ACX_EEPROM_CTL */ ++ 0x033c, /* IO_ACX_EEPROM_ADDR */ ++ 0x0340, /* IO_ACX_EEPROM_DATA */ ++ 0x0344, /* IO_ACX_EEPROM_CFG */ ++ ++ 0x0350, /* IO_ACX_PHY_ADDR */ ++ 0x0354, /* IO_ACX_PHY_DATA */ ++ 0x0358, /* IO_ACX_PHY_CTL */ ++ ++ 0x0374, /* IO_ACX_GPIO_OE */ ++ ++ 0x037c, /* IO_ACX_GPIO_OUT */ ++ ++ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */ ++ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */ ++ 0x0390, /* IO_ACX_EEPROM_INFORMATION */ ++ ++ 0x0100, /* IO_ACX_EE_START */ ++ 0x0104, /* IO_ACX_SOR_CFG */ ++ 0x0108, /* IO_ACX_ECPU_CTRL */ ++}; ++ ++static void ++dummy_netdev_init(struct net_device *ndev) {} ++ ++/* ++ * Most of the acx specific pieces of hardware reset. ++ */ ++static int ++acxmem_complete_hw_reset (acx_device_t *adev) ++{ ++ acx111_ie_configoption_t co; ++ ++ /* NB: read_reg() reads may return bogus data before reset_dev(), ++ * since the firmware which directly controls large parts of the I/O ++ * registers isn't initialized yet. ++ * acx100 seems to be more affected than acx111 */ ++ if (OK != acxmem_s_reset_dev (adev)) ++ return -1; ++ ++ if (IS_ACX100(adev)) { ++ /* ACX100: configopt struct in cmd mailbox - directly after reset */ ++ copy_from_slavemem (adev, (u8*) &co, (u32) adev->cmd_area, sizeof (co)); ++ } ++ ++ if (OK != acx_s_init_mac(adev)) ++ return -3; ++ ++ if (IS_ACX111(adev)) { ++ /* ACX111: configopt struct needs to be queried after full init */ ++ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS); ++ } ++ ++ /* ++ * Set up transmit buffer administration ++ */ ++ init_acx_txbuf (adev); ++ ++ /* ++ * Windows driver writes 0x01000000 to register 0x288, RADIO_CTL, if the form factor ++ * is 3. It also write protects the EEPROM by writing 1<<9 to GPIO_OUT ++ */ ++ if (adev->form_factor == 3) { ++ set_regbits (adev, 0x288, 0x01000000); ++ set_regbits (adev, 0x298, 1<<9); ++ } ++ ++/* TODO: merge them into one function, they are called just once and are the same for pci & usb */ ++ if (OK != acxmem_read_eeprom_byte(adev, 0x05, &adev->eeprom_version)) ++ return -2; ++ ++ acx_s_parse_configoption(adev, &co); ++ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */ ++ acx_display_hardware_details(adev); ++ ++ return 0; ++} ++ ++static int __devinit ++acxmem_e_probe(struct platform_device *pdev) ++{ ++ struct acx_hardware_data *hwdata = pdev->dev.platform_data; ++ acx_device_t *adev = NULL; ++ struct net_device *ndev = NULL; ++ const char *chip_name; ++ int result = -EIO; ++ int err; ++ int i; ++ unsigned long addr_size=0; ++ u8 chip_type; ++ ++ FN_ENTER; ++ (void) hwdata->start_hw(); ++ ++ /* FIXME: prism54 calls pci_set_mwi() here, ++ * should we do/support the same? */ ++ ++ /* chiptype is u8 but id->driver_data is ulong ++ ** Works for now (possible values are 1 and 2) */ ++ chip_type = CHIPTYPE_ACX100; ++ /* acx100 and acx111 have different PCI memory regions */ ++ if (chip_type == CHIPTYPE_ACX100) { ++ chip_name = "ACX100"; ++ } else if (chip_type == CHIPTYPE_ACX111) { ++ chip_name = "ACX111"; ++ } else { ++ printk("acx: unknown chip type 0x%04X\n", chip_type); ++ goto fail_unknown_chiptype; ++ } ++ ++ printk("acx: found %s-based wireless network card\n", chip_name); ++ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug); ++ ++ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init); ++ /* (NB: memsets to 0 entire area) */ ++ if (!ndev) { ++ printk("acx: no memory for netdevice struct\n"); ++ goto fail_alloc_netdev; ++ } ++ ++ platform_set_drvdata (pdev, ndev); ++ ++ ether_setup(ndev); ++ ++ /* ++ * use platform_data resources that were provided ++ */ ++ ndev->irq = 0; ++ for (i=0; i<pdev->num_resources; i++) { ++ if (pdev->resource[i].flags == IORESOURCE_IRQ) { ++ ndev->irq = pdev->resource[i].start; ++ } ++ else if (pdev->resource[i].flags == IORESOURCE_MEM) { ++ ndev->base_addr = pdev->resource[i].start; ++ addr_size = pdev->resource[i].end - pdev->resource[i].start; ++ } ++ } ++ if (addr_size == 0 || ndev->irq == 0) ++ goto fail_hw_params; ++ ndev->open = &acxmem_e_open; ++ ndev->stop = &acxmem_e_close; ++ pdev->dev.release = &acxmem_e_release; ++ ndev->hard_start_xmit = &acx_i_start_xmit; ++ ndev->get_stats = &acx_e_get_stats; ++#if IW_HANDLER_VERSION <= 5 ++ ndev->get_wireless_stats = &acx_e_get_wireless_stats; ++#endif ++ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def; ++ ndev->set_multicast_list = &acxmem_i_set_multicast_list; ++ ndev->tx_timeout = &acxmem_i_tx_timeout; ++ ndev->change_mtu = &acx_e_change_mtu; ++ ndev->watchdog_timeo = 4 * HZ; ++ ++ adev = ndev2adev(ndev); ++ spin_lock_init(&adev->lock); /* initial state: unlocked */ ++ spin_lock_init(&adev->txbuf_lock); ++ /* We do not start with downed sem: we want PARANOID_LOCKING to work */ ++ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */ ++ /* since nobody can see new netdev yet, we can as well ++ ** just _presume_ that we're under sem (instead of actually taking it): */ ++ /* acx_sem_lock(adev); */ ++ adev->dev = &pdev->dev; ++ adev->ndev = ndev; ++ adev->dev_type = DEVTYPE_MEM; ++ adev->chip_type = chip_type; ++ adev->chip_name = chip_name; ++ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111; ++ adev->membase = (volatile u32 *) ndev->base_addr; ++ adev->iobase = (volatile u32 *) ioremap_nocache (ndev->base_addr, addr_size); ++ /* to find crashes due to weird driver access ++ * to unconfigured interface (ifup) */ ++ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead; ++ ++#if defined(NONESSENTIAL_FEATURES) ++ acx_show_card_eeprom_id(adev); ++#endif /* NONESSENTIAL_FEATURES */ ++ ++#ifdef SET_MODULE_OWNER ++ SET_MODULE_OWNER(ndev); ++#endif ++ SET_NETDEV_DEV(ndev, &pdev->dev); ++ ++ log(L_IRQ|L_INIT, "using IRQ %d\n", ndev->irq); ++ ++ /* ok, pci setup is finished, now start initializing the card */ ++ ++ if (OK != acxmem_complete_hw_reset (adev)) ++ goto fail_reset; ++ ++ /* ++ * Set up default things for most of the card settings. ++ */ ++ acx_s_set_defaults(adev); ++ ++ /* Register the card, AFTER everything else has been set up, ++ * since otherwise an ioctl could step on our feet due to ++ * firmware operations happening in parallel or uninitialized data */ ++ err = register_netdev(ndev); ++ if (OK != err) { ++ printk("acx: register_netdev() FAILED: %d\n", err); ++ goto fail_register_netdev; ++ } ++ ++ acx_proc_register_entries(ndev); ++ ++ /* Now we have our device, so make sure the kernel doesn't try ++ * to send packets even though we're not associated to a network yet */ ++ acx_stop_queue(ndev, "on probe"); ++ acx_carrier_off(ndev, "on probe"); ++ ++ /* ++ * Set up a default monitor type so that poor combinations of initialization ++ * sequences in monitor mode don't end up destroying the hardware type. ++ */ ++ adev->monitor_type = ARPHRD_ETHER; ++ ++ /* ++ * Register to receive inetaddr notifier changes. This will allow us to ++ * catch if the user changes the MAC address of the interface. ++ */ ++ register_netdevice_notifier(&acx_netdev_notifier); ++ ++ /* after register_netdev() userspace may start working with dev ++ * (in particular, on other CPUs), we only need to up the sem */ ++ /* acx_sem_unlock(adev); */ ++ ++ printk("acx "ACX_RELEASE": net device %s, driver compiled " ++ "against wireless extensions %d and Linux %s\n", ++ ndev->name, WIRELESS_EXT, UTS_RELEASE); ++ ++#if CMD_DISCOVERY ++ great_inquisitor(adev); ++#endif ++ ++ result = OK; ++ goto done; ++ ++ /* error paths: undo everything in reverse order... */ ++ ++fail_register_netdev: ++ ++ acxmem_s_delete_dma_regions(adev); ++ ++fail_reset: ++fail_hw_params: ++ free_netdev(ndev); ++fail_alloc_netdev: ++fail_unknown_chiptype: ++ ++ ++done: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_remove ++** ++** Shut device down (if not hot unplugged) ++** and deallocate PCI resources for the acx chip. ++** ++** pdev - ptr to PCI device structure containing info about pci configuration ++*/ ++static int __devexit ++acxmem_e_remove(struct platform_device *pdev) ++{ ++ struct acx_hardware_data *hwdata = pdev->dev.platform_data; ++ struct net_device *ndev; ++ acx_device_t *adev; ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ ndev = (struct net_device*) platform_get_drvdata(pdev); ++ if (!ndev) { ++ log(L_DEBUG, "%s: card is unused. Skipping any release code\n", ++ __func__); ++ goto end; ++ } ++ ++ adev = ndev2adev(ndev); ++ ++ /* If device wasn't hot unplugged... */ ++ if (adev_present(adev)) { ++ ++ acx_sem_lock(adev); ++ ++ /* disable both Tx and Rx to shut radio down properly */ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0); ++ ++#ifdef REDUNDANT ++ /* put the eCPU to sleep to save power ++ * Halting is not possible currently, ++ * since not supported by all firmware versions */ ++ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0); ++#endif ++ acx_lock(adev, flags); ++ ++ /* disable power LED to save power :-) */ ++ log(L_INIT, "switching off power LED to save power\n"); ++ acxmem_l_power_led(adev, 0); ++ ++ /* stop our eCPU */ ++ if (IS_ACX111(adev)) { ++ /* FIXME: does this actually keep halting the eCPU? ++ * I don't think so... ++ */ ++ acxmem_l_reset_mac(adev); ++ } else { ++ u16 temp; ++ ++ /* halt eCPU */ ++ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1; ++ write_reg16(adev, IO_ACX_ECPU_CTRL, temp); ++ write_flush(adev); ++ } ++ ++ acx_unlock(adev, flags); ++ ++ acx_sem_unlock(adev); ++ } ++ ++ ++ /* ++ * Unregister the notifier chain ++ */ ++ unregister_netdevice_notifier(&acx_netdev_notifier); ++ ++ /* unregister the device to not let the kernel ++ * (e.g. ioctls) access a half-deconfigured device ++ * NB: this will cause acxmem_e_close() to be called, ++ * thus we shouldn't call it under sem! */ ++ log(L_INIT, "removing device %s\n", ndev->name); ++ unregister_netdev(ndev); ++ ++ /* unregister_netdev ensures that no references to us left. ++ * For paranoid reasons we continue to follow the rules */ ++ acx_sem_lock(adev); ++ ++ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) { ++ acxmem_s_down(ndev); ++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ } ++ ++ acx_proc_unregister_entries(ndev); ++ ++ acxmem_s_delete_dma_regions(adev); ++ ++ /* finally, clean up PCI bus state */ ++ if (adev->iobase) iounmap((void *)adev->iobase); ++ ++ acx_sem_unlock(adev); ++ ++ /* Free netdev (quite late, ++ * since otherwise we might get caught off-guard ++ * by a netdev timeout handler execution ++ * expecting to see a working dev...) */ ++ free_netdev(ndev); ++ ++ (void) hwdata->stop_hw(); ++ ++ printk ("e_remove done\n"); ++end: ++ FN_EXIT0; ++ ++ return 0; ++} ++ ++ ++/*********************************************************************** ++** TODO: PM code needs to be fixed / debugged / tested. ++*/ ++#ifdef CONFIG_PM ++static int ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++acxmem_e_suspend(struct platform_device *pdev, pm_message_t state) ++#else ++acxmem_e_suspend(struct device *pdev, u32 state) ++#endif ++{ ++ struct net_device *ndev = platform_get_drvdata(pdev); ++ acx_device_t *adev; ++ struct acx_hardware_data *hwdata; ++ ++ FN_ENTER; ++ printk("acx: suspend handler is experimental!\n"); ++ printk("sus: dev %p\n", ndev); ++ ++ if (!netif_running(ndev)) ++ goto end; ++ ++ adev = ndev2adev(ndev); ++ printk("sus: adev %p\n", adev); ++ ++ hwdata = adev->dev->platform_data; ++ ++ acx_sem_lock(adev); ++ ++ netif_device_detach(ndev); /* this one cannot sleep */ ++ acxmem_s_down(ndev); ++ /* down() does not set it to 0xffff, but here we really want that */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ acxmem_s_delete_dma_regions(adev); ++ ++ /* ++ * Turn the ACX chip off. ++ */ ++ hwdata->stop_hw(); ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT0; ++ return OK; ++} ++ ++ ++ ++static void ++fw_resumer(struct work_struct *notused) ++{ ++ struct platform_device *pdev = resume_pdev; ++ struct net_device *ndev = platform_get_drvdata(pdev); ++ acx_device_t *adev; ++ struct acx_hardware_data *hwdata; ++ ++ printk("acx: resume handler is experimental!\n"); ++ printk("rsm: got dev %p\n", ndev); ++ ++ if (!netif_running(ndev)) ++ return; ++ ++ adev = ndev2adev(ndev); ++ printk("rsm: got adev %p\n", adev); ++ ++ acx_sem_lock(adev); ++ ++ hwdata = adev->dev->platform_data; ++ ++ /* ++ * Turn on the ACX. ++ */ ++ hwdata->start_hw(); ++ ++ acxmem_complete_hw_reset (adev); ++ ++ /* ++ * done by acx_s_set_defaults for initial startup ++ */ ++ acxmem_set_interrupt_mask(adev); ++ ++ printk ("rsm: bringing up interface\n"); ++ SET_BIT (adev->set_mask, GETSET_ALL); ++ acxmem_s_up(ndev); ++ printk("rsm: acx up done\n"); ++ ++ /* now even reload all card parameters as they were before suspend, ++ * and possibly be back in the network again already :-) ++ */ ++ /* - most settings updated in acxmem_s_up() ++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) { ++ adev->set_mask = GETSET_ALL; ++ acx_s_update_card_settings(adev); ++ printk("rsm: settings updated\n"); ++ } ++ */ ++ netif_device_attach(ndev); ++ printk("rsm: device attached\n"); ++ ++ acx_sem_unlock(adev); ++} ++ ++DECLARE_WORK( fw_resume_work, fw_resumer ); ++ ++static int ++acxmem_e_resume(struct platform_device *pdev) ++{ ++ FN_ENTER; ++ ++ resume_pdev = pdev; ++ schedule_work( &fw_resume_work ); ++ ++ FN_EXIT0; ++ return OK; ++} ++#endif /* CONFIG_PM */ ++ ++ ++/*********************************************************************** ++** acxmem_s_up ++** ++** This function is called by acxmem_e_open (when ifconfig sets the device as up) ++** ++** Side effects: ++** - Enables on-card interrupt requests ++** - calls acx_s_start ++*/ ++ ++static void ++enable_acx_irq(acx_device_t *adev) ++{ ++ FN_ENTER; ++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask); ++ write_reg16(adev, IO_ACX_FEMR, 0x8000); ++ adev->irqs_active = 1; ++ FN_EXIT0; ++} ++ ++static void ++acxmem_s_up(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ enable_acx_irq(adev); ++ acx_unlock(adev, flags); ++ ++ /* acx fw < 1.9.3.e has a hardware timer, and older drivers ++ ** used to use it. But we don't do that anymore, our OS ++ ** has reliable software timers */ ++ init_timer(&adev->mgmt_timer); ++ adev->mgmt_timer.function = acx_i_timer; ++ adev->mgmt_timer.data = (unsigned long)adev; ++ ++ /* Need to set ACX_STATE_IFACE_UP first, or else ++ ** timer won't be started by acx_set_status() */ ++ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ /* actual scan cmd will happen in start() */ ++ acx_set_status(adev, ACX_STATUS_1_SCANNING); break; ++ case ACX_MODE_3_AP: ++ case ACX_MODE_MONITOR: ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break; ++ } ++ ++ acx_s_start(adev); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_down ++** ++** This disables the netdevice ++** ++** Side effects: ++** - disables on-card interrupt request ++*/ ++ ++static void ++disable_acx_irq(acx_device_t *adev) ++{ ++ FN_ENTER; ++ ++ /* I guess mask is not 0xffff because acx100 won't signal ++ ** cmd completion then (needed for ifup). ++ ** Someone with acx100 please confirm */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ adev->irqs_active = 0; ++ FN_EXIT0; ++} ++ ++static void ++acxmem_s_down(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ /* Disable IRQs first, so that IRQs cannot race with us */ ++ /* then wait until interrupts have finished executing on other CPUs */ ++ acx_lock(adev, flags); ++ disable_acx_irq(adev); ++ synchronize_irq(adev->pdev->irq); ++ acx_unlock(adev, flags); ++ ++ /* we really don't want to have an asynchronous tasklet disturb us ++ ** after something vital for its job has been shut down, so ++ ** end all remaining work now. ++ ** ++ ** NB: carrier_off (done by set_status below) would lead to ++ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK(). ++ ** That's why we do FLUSH first. ++ ** ++ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK() ++ ** waits for acx_e_after_interrupt_task to complete if it is running ++ ** on another CPU, but acx_e_after_interrupt_task ++ ** will sleep on sem forever, because it is taken by us! ++ ** Work around that by temporary sem unlock. ++ ** This will fail miserably if we'll be hit by concurrent ++ ** iwconfig or something in between. TODO! */ ++ acx_sem_unlock(adev); ++ FLUSH_SCHEDULED_WORK(); ++ acx_sem_lock(adev); ++ ++ /* This is possible: ++ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task -> ++ ** -> set_status(ASSOCIATED) -> wake_queue() ++ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK ++ ** lock/unlock is just paranoia, maybe not needed */ ++ acx_lock(adev, flags); ++ acx_stop_queue(ndev, "on ifdown"); ++ acx_set_status(adev, ACX_STATUS_0_STOPPED); ++ acx_unlock(adev, flags); ++ ++ /* kernel/timer.c says it's illegal to del_timer_sync() ++ ** a timer which restarts itself. We guarantee this cannot ++ ** ever happen because acx_i_timer() never does this if ++ ** status is ACX_STATUS_0_STOPPED */ ++ del_timer_sync(&adev->mgmt_timer); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_open ++** ++** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP ++** from clear to set. In other words: ifconfig up. ++** ++** Returns: ++** 0 success ++** >0 f/w reported error ++** <0 driver reported error ++*/ ++static int ++acxmem_e_open(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result = OK; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ acx_init_task_scheduler(adev); ++ ++/* TODO: pci_set_power_state(pdev, PCI_D0); ? */ ++ ++ /* request shared IRQ handler */ ++ if (request_irq(ndev->irq, acxmem_i_interrupt, SA_INTERRUPT, ndev->name, ndev)) { ++ printk("%s: request_irq FAILED\n", ndev->name); ++ result = -EAGAIN; ++ goto done; ++ } ++ set_irq_type (ndev->irq, IRQT_FALLING); ++ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq); ++ ++ /* ifup device */ ++ acxmem_s_up(ndev); ++ ++ /* We don't currently have to do anything else. ++ * The setup of the MAC should be subsequently completed via ++ * the mlme commands. ++ * Higher layers know we're ready from dev->start==1 and ++ * dev->tbusy==0. Our rx path knows to pass up received/ ++ * frames because of dev->flags&IFF_UP is true. ++ */ ++done: ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_close ++** ++** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP ++** from set to clear. I.e. called by "ifconfig DEV down" ++** ++** Returns: ++** 0 success ++** >0 f/w reported error ++** <0 driver reported error ++*/ ++static int ++acxmem_e_close(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ /* ifdown device */ ++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ if (netif_device_present(ndev)) { ++ acxmem_s_down(ndev); ++ } ++ ++ /* disable all IRQs, release shared IRQ handler */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ free_irq(ndev->irq, ndev); ++ ++/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */ ++ ++ /* We currently don't have to do anything else. ++ * Higher layers know we're not ready from dev->start==0 and ++ * dev->tbusy==1. Our rx path knows to not pass up received ++ * frames because of dev->flags&IFF_UP is false. ++ */ ++ acx_sem_unlock(adev); ++ ++ log(L_INIT, "closed device\n"); ++ FN_EXIT0; ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acxmem_i_tx_timeout ++** ++** Called from network core. Must not sleep! ++*/ ++static void ++acxmem_i_tx_timeout(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ unsigned int tx_num_cleaned; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ ++ /* clean processed tx descs, they may have been completely full */ ++ tx_num_cleaned = acxmem_l_clean_txdesc(adev); ++ ++ /* nothing cleaned, yet (almost) no free buffers available? ++ * --> clean all tx descs, no matter which status!! ++ * Note that I strongly suspect that doing emergency cleaning ++ * may confuse the firmware. This is a last ditch effort to get ++ * ANYTHING to work again... ++ * ++ * TODO: it's best to simply reset & reinit hw from scratch... ++ */ ++ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) { ++ printk("%s: FAILED to free any of the many full tx buffers. " ++ "Switching to emergency freeing. " ++ "Please report!\n", ndev->name); ++ acxmem_l_clean_txdesc_emergency(adev); ++ } ++ ++ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status)) ++ acx_wake_queue(ndev, "after tx timeout"); ++ ++ /* stall may have happened due to radio drift, so recalib radio */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB); ++ ++ /* do unimportant work last */ ++ printk("%s: tx timeout!\n", ndev->name); ++ adev->stats.tx_errors++; ++ ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_i_set_multicast_list ++** FIXME: most likely needs refinement ++*/ ++static void ++acxmem_i_set_multicast_list(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ ++ /* firmwares don't have allmulti capability, ++ * so just use promiscuous mode instead in this case. */ ++ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) { ++ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS); ++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI); ++ SET_BIT(adev->set_mask, SET_RXCONFIG); ++ /* let kernel know in case *we* needed to set promiscuous */ ++ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI); ++ } else { ++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS); ++ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI); ++ SET_BIT(adev->set_mask, SET_RXCONFIG); ++ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI); ++ } ++ ++ /* cannot update card settings directly here, atomic context */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG); ++ ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxmem_l_process_rxdesc ++** ++** Called directly and only from the IRQ handler ++*/ ++ ++#if !ACX_DEBUG ++static inline void log_rxbuffer(const acx_device_t *adev) {} ++#else ++static void ++log_rxbuffer(const acx_device_t *adev) ++{ ++ register const struct rxhostdesc *rxhostdesc; ++ int i; ++ /* no FN_ENTER here, we don't want that */ ++ ++ rxhostdesc = adev->rxhostdesc_start; ++ if (unlikely(!rxhostdesc)) return; ++ for (i = 0; i < RX_CNT; i++) { ++ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN)) ++ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL))) ++ printk("rx: buf %d full\n", i); ++ rxhostdesc++; ++ } ++} ++#endif ++ ++static void ++acxmem_l_process_rxdesc(acx_device_t *adev) ++{ ++ register rxhostdesc_t *hostdesc; ++ register rxdesc_t *rxdesc; ++ unsigned count, tail; ++ u32 addr; ++ u8 Ctl_8; ++ ++ FN_ENTER; ++ ++ if (unlikely(acx_debug & L_BUFR)) ++ log_rxbuffer(adev); ++ ++ /* First, have a loop to determine the first descriptor that's ++ * full, just in case there's a mismatch between our current ++ * rx_tail and the full descriptor we're supposed to handle. */ ++ tail = adev->rx_tail; ++ count = RX_CNT; ++ while (1) { ++ hostdesc = &adev->rxhostdesc_start[tail]; ++ rxdesc = &adev->rxdesc_start[tail]; ++ /* advance tail regardless of outcome of the below test */ ++ tail = (tail + 1) % RX_CNT; ++ ++ /* ++ * Unlike the PCI interface, where the ACX can write directly to ++ * the host descriptors, on the slave memory interface we have to ++ * pull these. All we really need to do is check the Ctl_8 field ++ * in the rx descriptor on the ACX, which should be 0x11000000 if ++ * we should process it. ++ */ ++ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8)); ++ if ((Ctl_8 & DESC_CTL_HOSTOWN) && ++ (Ctl_8 & DESC_CTL_ACXDONE)) ++ break; /* found it! */ ++ ++ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */ ++ goto end; ++ } ++ ++ /* now process descriptors, starting with the first we figured out */ ++ while (1) { ++ log(L_BUFR, "rx: tail=%u Ctl_8=%02X\n", tail, Ctl_8); ++ /* ++ * If the ACX has CTL_RECLAIM set on this descriptor there ++ * is no buffer associated; it just wants us to tell it to ++ * reclaim the memory. ++ */ ++ if (!(Ctl_8 & DESC_CTL_RECLAIM)) { ++ ++ /* ++ * slave interface - pull data now ++ */ ++ hostdesc->length = read_slavemem16 (adev, (u32) &(rxdesc->total_length)); ++ ++ /* ++ * hostdesc->data is an rxbuffer_t, which includes header information, ++ * but the length in the data packet doesn't. The header information ++ * takes up an additional 12 bytes, so add that to the length we copy. ++ */ ++ addr = read_slavemem32 (adev, (u32) &(rxdesc->ACXMemPtr)); ++ if (addr) { ++ /* ++ * How can &(rxdesc->ACXMemPtr) above ever be zero? Looks like we ++ * get that now and then - try to trap it for debug. ++ */ ++ if (addr & 0xffff0000) { ++ printk("rxdesc 0x%08x\n", (u32) rxdesc); ++ dump_acxmem (adev, 0, 0x10000); ++ panic ("Bad access!"); ++ } ++ chaincopy_from_slavemem (adev, (u8 *) hostdesc->data, addr, ++ hostdesc->length + ++ (u32) &((rxbuffer_t *)0)->hdr_a3); ++ acx_l_process_rxbuf(adev, hostdesc->data); ++ } ++ } ++ else { ++ printk ("rx reclaim only!\n"); ++ } ++ ++ hostdesc->Status = 0; ++ ++ /* ++ * Let the ACX know we're done. ++ */ ++ CLEAR_BIT (Ctl_8, DESC_CTL_HOSTOWN); ++ SET_BIT (Ctl_8, DESC_CTL_HOSTDONE); ++ SET_BIT (Ctl_8, DESC_CTL_RECLAIM); ++ write_slavemem8 (adev, (u32) &rxdesc->Ctl_8, Ctl_8); ++ ++ /* ++ * Now tell the ACX we've finished with the receive buffer so ++ * it can finish the reclaim. ++ */ ++ write_reg16 (adev, IO_ACX_INT_TRIG, INT_TRIG_RXPRC); ++ ++ /* ok, descriptor is handled, now check the next descriptor */ ++ hostdesc = &adev->rxhostdesc_start[tail]; ++ rxdesc = &adev->rxdesc_start[tail]; ++ ++ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8)); ++ ++ /* if next descriptor is empty, then bail out */ ++ if (!(Ctl_8 & DESC_CTL_HOSTOWN) || !(Ctl_8 & DESC_CTL_ACXDONE)) ++ break; ++ ++ tail = (tail + 1) % RX_CNT; ++ } ++end: ++ adev->rx_tail = tail; ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_i_interrupt ++** ++** IRQ handler (atomic context, must not sleep, blah, blah) ++*/ ++ ++/* scan is complete. all frames now on the receive queue are valid */ ++#define INFO_SCAN_COMPLETE 0x0001 ++#define INFO_WEP_KEY_NOT_FOUND 0x0002 ++/* hw has been reset as the result of a watchdog timer timeout */ ++#define INFO_WATCH_DOG_RESET 0x0003 ++/* failed to send out NULL frame from PS mode notification to AP */ ++/* recommended action: try entering 802.11 PS mode again */ ++#define INFO_PS_FAIL 0x0004 ++/* encryption/decryption process on a packet failed */ ++#define INFO_IV_ICV_FAILURE 0x0005 ++ ++/* Info mailbox format: ++2 bytes: type ++2 bytes: status ++more bytes may follow ++ rumors say about status: ++ 0x0000 info available (set by hw) ++ 0x0001 information received (must be set by host) ++ 0x1000 info available, mailbox overflowed (messages lost) (set by hw) ++ but in practice we've seen: ++ 0x9000 when we did not set status to 0x0001 on prev message ++ 0x1001 when we did set it ++ 0x0000 was never seen ++ conclusion: this is really a bitfield: ++ 0x1000 is 'info available' bit ++ 'mailbox overflowed' bit is 0x8000, not 0x1000 ++ value of 0x0000 probably means that there are no messages at all ++ P.S. I dunno how in hell hw is supposed to notice that messages are lost - ++ it does NOT clear bit 0x0001, and this bit will probably stay forever set ++ after we set it once. Let's hope this will be fixed in firmware someday ++*/ ++ ++static void ++handle_info_irq(acx_device_t *adev) ++{ ++#if ACX_DEBUG ++ static const char * const info_type_msg[] = { ++ "(unknown)", ++ "scan complete", ++ "WEP key not found", ++ "internal watchdog reset was done", ++ "failed to send powersave (NULL frame) notification to AP", ++ "encrypt/decrypt on a packet has failed", ++ "TKIP tx keys disabled", ++ "TKIP rx keys disabled", ++ "TKIP rx: key ID not found", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "TKIP IV value exceeds thresh" ++ }; ++#endif ++ u32 info_type, info_status; ++ ++ info_type = read_slavemem32 (adev, (u32) adev->info_area); ++ ++ info_status = (info_type >> 16); ++ info_type = (u16)info_type; ++ ++ /* inform fw that we have read this info message */ ++ write_slavemem32(adev, (u32) adev->info_area, info_type | 0x00010000); ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK); ++ write_flush(adev); ++ ++ log(L_CTL, "info_type:%04X info_status:%04X\n", ++ info_type, info_status); ++ ++ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n", ++ info_status, info_type, ++ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ? ++ 0 : info_type] ++ ); ++} ++ ++ ++static void ++log_unusual_irq(u16 irqtype) { ++ /* ++ if (!printk_ratelimit()) ++ return; ++ */ ++ ++ printk("acx: got"); ++ if (irqtype & HOST_INT_TX_XFER) { ++ printk(" Tx_Xfer"); ++ } ++ if (irqtype & HOST_INT_RX_COMPLETE) { ++ printk(" Rx_Complete"); ++ } ++ if (irqtype & HOST_INT_DTIM) { ++ printk(" DTIM"); ++ } ++ if (irqtype & HOST_INT_BEACON) { ++ printk(" Beacon"); ++ } ++ if (irqtype & HOST_INT_TIMER) { ++ log(L_IRQ, " Timer"); ++ } ++ if (irqtype & HOST_INT_KEY_NOT_FOUND) { ++ printk(" Key_Not_Found"); ++ } ++ if (irqtype & HOST_INT_IV_ICV_FAILURE) { ++ printk(" IV_ICV_Failure (crypto)"); ++ } ++ /* HOST_INT_CMD_COMPLETE */ ++ /* HOST_INT_INFO */ ++ if (irqtype & HOST_INT_OVERFLOW) { ++ printk(" Overflow"); ++ } ++ if (irqtype & HOST_INT_PROCESS_ERROR) { ++ printk(" Process_Error"); ++ } ++ /* HOST_INT_SCAN_COMPLETE */ ++ if (irqtype & HOST_INT_FCS_THRESHOLD) { ++ printk(" FCS_Threshold"); ++ } ++ if (irqtype & HOST_INT_UNKNOWN) { ++ printk(" Unknown"); ++ } ++ printk(" IRQ(s)\n"); ++} ++ ++ ++static void ++update_link_quality_led(acx_device_t *adev) ++{ ++ int qual; ++ ++ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise); ++ if (qual > adev->brange_max_quality) ++ qual = adev->brange_max_quality; ++ ++ if (time_after(jiffies, adev->brange_time_last_state_change + ++ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) { ++ acxmem_l_power_led(adev, (adev->brange_last_state == 0)); ++ adev->brange_last_state ^= 1; /* toggle */ ++ adev->brange_time_last_state_change = jiffies; ++ } ++} ++ ++ ++#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */ ++ ++static irqreturn_t ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++acxmem_i_interrupt(int irq, void *dev_id) ++#else ++acxmwm_i_interrupt(int irq, void *dev_id, struct pt_regs *regs) ++#endif ++{ ++ acx_device_t *adev; ++ unsigned long flags; ++ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY; ++ register u16 irqtype; ++ u16 unmasked; ++ ++ adev = ndev2adev((struct net_device*)dev_id); ++ ++ /* LOCKING: can just spin_lock() since IRQs are disabled anyway. ++ * I am paranoid */ ++ acx_lock(adev, flags); ++ ++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR); ++ if (unlikely(0xffff == unmasked)) { ++ /* 0xffff value hints at missing hardware, ++ * so don't do anything. ++ * Not very clean, but other drivers do the same... */ ++ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n"); ++ goto none; ++ } ++ ++ /* We will check only "interesting" IRQ types */ ++ irqtype = unmasked & ~adev->irq_mask; ++ if (!irqtype) { ++ /* We are on a shared IRQ line and it wasn't our IRQ */ ++ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n", ++ unmasked, adev->irq_mask); ++ goto none; ++ } ++ ++ /* Done here because IRQ_NONEs taking three lines of log ++ ** drive me crazy */ ++ FN_ENTER; ++ ++#define IRQ_ITERATE 1 ++#if IRQ_ITERATE ++if (jiffies != adev->irq_last_jiffies) { ++ adev->irq_loops_this_jiffy = 0; ++ adev->irq_last_jiffies = jiffies; ++} ++ ++/* safety condition; we'll normally abort loop below ++ * in case no IRQ type occurred */ ++while (likely(--irqcount)) { ++#endif ++ /* ACK all IRQs ASAP */ ++ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff); ++ ++ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n", ++ unmasked, adev->irq_mask, irqtype); ++ ++ /* Handle most important IRQ types first */ ++ if (irqtype & HOST_INT_RX_DATA) { ++ log(L_IRQ, "got Rx_Data IRQ\n"); ++ acxmem_l_process_rxdesc(adev); ++ } ++ if (irqtype & HOST_INT_TX_COMPLETE) { ++ log(L_IRQ, "got Tx_Complete IRQ\n"); ++ /* don't clean up on each Tx complete, wait a bit ++ * unless we're going towards full, in which case ++ * we do it immediately, too (otherwise we might lockup ++ * with a full Tx buffer if we go into ++ * acxmem_l_clean_txdesc() at a time when we won't wakeup ++ * the net queue in there for some reason...) */ ++ if (adev->tx_free <= TX_START_CLEAN) { ++#if TX_CLEANUP_IN_SOFTIRQ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP); ++#else ++ acxmem_l_clean_txdesc(adev); ++#endif ++ } ++ } ++ ++ /* Less frequent ones */ ++ if (irqtype & (0 ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ | HOST_INT_SCAN_COMPLETE ++ )) { ++ if (irqtype & HOST_INT_CMD_COMPLETE) { ++ log(L_IRQ, "got Command_Complete IRQ\n"); ++ /* save the state for the running issue_cmd() */ ++ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE); ++ } ++ if (irqtype & HOST_INT_INFO) { ++ handle_info_irq(adev); ++ } ++ if (irqtype & HOST_INT_SCAN_COMPLETE) { ++ log(L_IRQ, "got Scan_Complete IRQ\n"); ++ /* need to do that in process context */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN); ++ /* remember that fw is not scanning anymore */ ++ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE); ++ } ++ } ++ ++ /* These we just log, but either they happen rarely ++ * or we keep them masked out */ ++ if (irqtype & (0 ++ /* | HOST_INT_RX_DATA */ ++ /* | HOST_INT_TX_COMPLETE */ ++ | HOST_INT_TX_XFER ++ | HOST_INT_RX_COMPLETE ++ | HOST_INT_DTIM ++ | HOST_INT_BEACON ++ | HOST_INT_TIMER ++ | HOST_INT_KEY_NOT_FOUND ++ | HOST_INT_IV_ICV_FAILURE ++ /* | HOST_INT_CMD_COMPLETE */ ++ /* | HOST_INT_INFO */ ++ | HOST_INT_OVERFLOW ++ | HOST_INT_PROCESS_ERROR ++ /* | HOST_INT_SCAN_COMPLETE */ ++ | HOST_INT_FCS_THRESHOLD ++ | HOST_INT_UNKNOWN ++ )) { ++ log_unusual_irq(irqtype); ++ } ++ ++#if IRQ_ITERATE ++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR); ++ irqtype = unmasked & ~adev->irq_mask; ++ /* Bail out if no new IRQ bits or if all are masked out */ ++ if (!irqtype) ++ break; ++ ++ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) { ++ printk(KERN_ERR "acx: too many interrupts per jiffy!\n"); ++ /* Looks like card floods us with IRQs! Try to stop that */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ /* This will short-circuit all future attempts to handle IRQ. ++ * We cant do much more... */ ++ adev->irq_mask = 0; ++ break; ++ } ++} ++#endif ++ /* Routine to perform blink with range */ ++ if (unlikely(adev->led_power == 2)) ++ update_link_quality_led(adev); ++ ++/* handled: */ ++ /* write_flush(adev); - not needed, last op was read anyway */ ++ acx_unlock(adev, flags); ++ FN_EXIT0; ++ return IRQ_HANDLED; ++ ++none: ++ acx_unlock(adev, flags); ++ return IRQ_NONE; ++} ++ ++ ++/*********************************************************************** ++** acxmem_l_power_led ++*/ ++void ++acxmem_l_power_led(acx_device_t *adev, int enable) ++{ ++ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800; ++ ++ /* A hack. Not moving message rate limiting to adev->xxx ++ * (it's only a debug message after all) */ ++ static int rate_limit = 0; ++ ++ if (rate_limit++ < 3) ++ log(L_IOCTL, "Please report in case toggling the power " ++ "LED doesn't work for your card!\n"); ++ if (enable) ++ write_reg16(adev, IO_ACX_GPIO_OUT, ++ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled); ++ else ++ write_reg16(adev, IO_ACX_GPIO_OUT, ++ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled); ++} ++ ++ ++/*********************************************************************** ++** Ioctls ++*/ ++ ++/*********************************************************************** ++*/ ++int ++acx111pci_ioctl_info( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra) ++{ ++#if ACX_DEBUG > 1 ++ acx_device_t *adev = ndev2adev(ndev); ++ rxdesc_t *rxdesc; ++ txdesc_t *txdesc; ++ rxhostdesc_t *rxhostdesc; ++ txhostdesc_t *txhostdesc; ++ struct acx111_ie_memoryconfig memconf; ++ struct acx111_ie_queueconfig queueconf; ++ unsigned long flags; ++ int i; ++ char memmap[0x34]; ++ char rxconfig[0x8]; ++ char fcserror[0x8]; ++ char ratefallback[0x5]; ++ ++ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) ) ++ return OK; ++ /* using printk() since we checked debug flag already */ ++ ++ acx_sem_lock(adev); ++ ++ if (!IS_ACX111(adev)) { ++ printk("acx111-specific function called " ++ "with non-acx111 chip, aborting\n"); ++ goto end_ok; ++ } ++ ++ /* get Acx111 Memory Configuration */ ++ memset(&memconf, 0, sizeof(memconf)); ++ /* BTW, fails with 12 (Write only) error code. ++ ** Retained for easy testing of issue_cmd error handling :) */ ++ printk ("Interrogating queue config\n"); ++ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG); ++ printk ("done with queue config\n"); ++ ++ /* get Acx111 Queue Configuration */ ++ memset(&queueconf, 0, sizeof(queueconf)); ++ printk ("Interrogating mem config options\n"); ++ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS); ++ printk ("done with mem config options\n"); ++ ++ /* get Acx111 Memory Map */ ++ memset(memmap, 0, sizeof(memmap)); ++ printk ("Interrogating mem map\n"); ++ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP); ++ printk ("done with mem map\n"); ++ ++ /* get Acx111 Rx Config */ ++ memset(rxconfig, 0, sizeof(rxconfig)); ++ printk ("Interrogating rxconfig\n"); ++ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG); ++ printk ("done with queue rxconfig\n"); ++ ++ /* get Acx111 fcs error count */ ++ memset(fcserror, 0, sizeof(fcserror)); ++ printk ("Interrogating fcs err count\n"); ++ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT); ++ printk ("done with err count\n"); ++ ++ /* get Acx111 rate fallback */ ++ memset(ratefallback, 0, sizeof(ratefallback)); ++ printk ("Interrogating rate fallback\n"); ++ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK); ++ printk ("done with rate fallback\n"); ++ ++ /* force occurrence of a beacon interrupt */ ++ /* TODO: comment why is this necessary */ ++ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON); ++ ++ /* dump Acx111 Mem Configuration */ ++ printk("dump mem config:\n" ++ "data read: %d, struct size: %d\n" ++ "Number of stations: %1X\n" ++ "Memory block size: %1X\n" ++ "tx/rx memory block allocation: %1X\n" ++ "count rx: %X / tx: %X queues\n" ++ "options %1X\n" ++ "fragmentation %1X\n" ++ "Rx Queue 1 Count Descriptors: %X\n" ++ "Rx Queue 1 Host Memory Start: %X\n" ++ "Tx Queue 1 Count Descriptors: %X\n" ++ "Tx Queue 1 Attributes: %X\n", ++ memconf.len, (int) sizeof(memconf), ++ memconf.no_of_stations, ++ memconf.memory_block_size, ++ memconf.tx_rx_memory_block_allocation, ++ memconf.count_rx_queues, memconf.count_tx_queues, ++ memconf.options, ++ memconf.fragmentation, ++ memconf.rx_queue1_count_descs, ++ acx2cpu(memconf.rx_queue1_host_rx_start), ++ memconf.tx_queue1_count_descs, ++ memconf.tx_queue1_attributes); ++ ++ /* dump Acx111 Queue Configuration */ ++ printk("dump queue head:\n" ++ "data read: %d, struct size: %d\n" ++ "tx_memory_block_address (from card): %X\n" ++ "rx_memory_block_address (from card): %X\n" ++ "rx1_queue address (from card): %X\n" ++ "tx1_queue address (from card): %X\n" ++ "tx1_queue attributes (from card): %X\n", ++ queueconf.len, (int) sizeof(queueconf), ++ queueconf.tx_memory_block_address, ++ queueconf.rx_memory_block_address, ++ queueconf.rx1_queue_address, ++ queueconf.tx1_queue_address, ++ queueconf.tx1_attributes); ++ ++ /* dump Acx111 Mem Map */ ++ printk("dump mem map:\n" ++ "data read: %d, struct size: %d\n" ++ "Code start: %X\n" ++ "Code end: %X\n" ++ "WEP default key start: %X\n" ++ "WEP default key end: %X\n" ++ "STA table start: %X\n" ++ "STA table end: %X\n" ++ "Packet template start: %X\n" ++ "Packet template end: %X\n" ++ "Queue memory start: %X\n" ++ "Queue memory end: %X\n" ++ "Packet memory pool start: %X\n" ++ "Packet memory pool end: %X\n" ++ "iobase: %p\n" ++ "iobase2: %p\n", ++ *((u16 *)&memmap[0x02]), (int) sizeof(memmap), ++ *((u32 *)&memmap[0x04]), ++ *((u32 *)&memmap[0x08]), ++ *((u32 *)&memmap[0x0C]), ++ *((u32 *)&memmap[0x10]), ++ *((u32 *)&memmap[0x14]), ++ *((u32 *)&memmap[0x18]), ++ *((u32 *)&memmap[0x1C]), ++ *((u32 *)&memmap[0x20]), ++ *((u32 *)&memmap[0x24]), ++ *((u32 *)&memmap[0x28]), ++ *((u32 *)&memmap[0x2C]), ++ *((u32 *)&memmap[0x30]), ++ adev->iobase, ++ adev->iobase2); ++ ++ /* dump Acx111 Rx Config */ ++ printk("dump rx config:\n" ++ "data read: %d, struct size: %d\n" ++ "rx config: %X\n" ++ "rx filter config: %X\n", ++ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig), ++ *((u16 *)&rxconfig[0x04]), ++ *((u16 *)&rxconfig[0x06])); ++ ++ /* dump Acx111 fcs error */ ++ printk("dump fcserror:\n" ++ "data read: %d, struct size: %d\n" ++ "fcserrors: %X\n", ++ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror), ++ *((u32 *)&fcserror[0x04])); ++ ++ /* dump Acx111 rate fallback */ ++ printk("dump rate fallback:\n" ++ "data read: %d, struct size: %d\n" ++ "ratefallback: %X\n", ++ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback), ++ *((u8 *)&ratefallback[0x04])); ++ ++ /* protect against IRQ */ ++ acx_lock(adev, flags); ++ ++ /* dump acx111 internal rx descriptor ring buffer */ ++ rxdesc = adev->rxdesc_start; ++ ++ /* loop over complete receive pool */ ++ if (rxdesc) for (i = 0; i < RX_CNT; i++) { ++ printk("\ndump internal rxdesc %d:\n" ++ "mem pos %p\n" ++ "next 0x%X\n" ++ "acx mem pointer (dynamic) 0x%X\n" ++ "CTL (dynamic) 0x%X\n" ++ "Rate (dynamic) 0x%X\n" ++ "RxStatus (dynamic) 0x%X\n" ++ "Mod/Pre (dynamic) 0x%X\n", ++ i, ++ rxdesc, ++ acx2cpu(rxdesc->pNextDesc), ++ acx2cpu(rxdesc->ACXMemPtr), ++ rxdesc->Ctl_8, ++ rxdesc->rate, ++ rxdesc->error, ++ rxdesc->SNR); ++ rxdesc++; ++ } ++ ++ /* dump host rx descriptor ring buffer */ ++ ++ rxhostdesc = adev->rxhostdesc_start; ++ ++ /* loop over complete receive pool */ ++ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) { ++ printk("\ndump host rxdesc %d:\n" ++ "mem pos %p\n" ++ "buffer mem pos 0x%X\n" ++ "buffer mem offset 0x%X\n" ++ "CTL 0x%X\n" ++ "Length 0x%X\n" ++ "next 0x%X\n" ++ "Status 0x%X\n", ++ i, ++ rxhostdesc, ++ acx2cpu(rxhostdesc->data_phy), ++ rxhostdesc->data_offset, ++ le16_to_cpu(rxhostdesc->Ctl_16), ++ le16_to_cpu(rxhostdesc->length), ++ acx2cpu(rxhostdesc->desc_phy_next), ++ rxhostdesc->Status); ++ rxhostdesc++; ++ } ++ ++ /* dump acx111 internal tx descriptor ring buffer */ ++ txdesc = adev->txdesc_start; ++ ++ /* loop over complete transmit pool */ ++ if (txdesc) for (i = 0; i < TX_CNT; i++) { ++ printk("\ndump internal txdesc %d:\n" ++ "size 0x%X\n" ++ "mem pos %p\n" ++ "next 0x%X\n" ++ "acx mem pointer (dynamic) 0x%X\n" ++ "host mem pointer (dynamic) 0x%X\n" ++ "length (dynamic) 0x%X\n" ++ "CTL (dynamic) 0x%X\n" ++ "CTL2 (dynamic) 0x%X\n" ++ "Status (dynamic) 0x%X\n" ++ "Rate (dynamic) 0x%X\n", ++ i, ++ (int) sizeof(struct txdesc), ++ txdesc, ++ acx2cpu(txdesc->pNextDesc), ++ acx2cpu(txdesc->AcxMemPtr), ++ acx2cpu(txdesc->HostMemPtr), ++ le16_to_cpu(txdesc->total_length), ++ txdesc->Ctl_8, ++ txdesc->Ctl2_8, txdesc->error, ++ txdesc->u.r1.rate); ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ ++ /* dump host tx descriptor ring buffer */ ++ ++ txhostdesc = adev->txhostdesc_start; ++ ++ /* loop over complete host send pool */ ++ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) { ++ printk("\ndump host txdesc %d:\n" ++ "mem pos %p\n" ++ "buffer mem pos 0x%X\n" ++ "buffer mem offset 0x%X\n" ++ "CTL 0x%X\n" ++ "Length 0x%X\n" ++ "next 0x%X\n" ++ "Status 0x%X\n", ++ i, ++ txhostdesc, ++ acx2cpu(txhostdesc->data_phy), ++ txhostdesc->data_offset, ++ le16_to_cpu(txhostdesc->Ctl_16), ++ le16_to_cpu(txhostdesc->length), ++ acx2cpu(txhostdesc->desc_phy_next), ++ le32_to_cpu(txhostdesc->Status)); ++ txhostdesc++; ++ } ++ ++ /* write_reg16(adev, 0xb4, 0x4); */ ++ ++ acx_unlock(adev, flags); ++end_ok: ++ ++ acx_sem_unlock(adev); ++#endif /* ACX_DEBUG */ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acx100mem_ioctl_set_phy_amp_bias( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ u16 gpio_old; ++ ++ if (!IS_ACX100(adev)) { ++ /* WARNING!!! ++ * Removing this check *might* damage ++ * hardware, since we're tweaking GPIOs here after all!!! ++ * You've been warned... ++ * WARNING!!! */ ++ printk("acx: sorry, setting bias level for non-acx100 " ++ "is not supported yet\n"); ++ return OK; ++ } ++ ++ if (*extra > 7) { ++ printk("acx: invalid bias parameter, range is 0-7\n"); ++ return -EINVAL; ++ } ++ ++ acx_sem_lock(adev); ++ ++ /* Need to lock accesses to [IO_ACX_GPIO_OUT]: ++ * IRQ handler uses it to update LED */ ++ acx_lock(adev, flags); ++ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT); ++ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8)); ++ acx_unlock(adev, flags); ++ ++ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old); ++ printk("%s: PHY power amplifier bias: old:%d, new:%d\n", ++ ndev->name, ++ (gpio_old & 0x0700) >> 8, (unsigned char)*extra); ++ ++ acx_sem_unlock(adev); ++ ++ return OK; ++} ++ ++/*************************************************************** ++** acxmem_l_alloc_tx ++** Actually returns a txdesc_t* ptr ++** ++** FIXME: in case of fragments, should allocate multiple descrs ++** after figuring out how many we need and whether we still have ++** sufficiently many. ++*/ ++tx_t* ++acxmem_l_alloc_tx(acx_device_t *adev) ++{ ++ struct txdesc *txdesc; ++ unsigned head; ++ u8 ctl8; ++ static int txattempts = 0; ++ ++ FN_ENTER; ++ ++ if (unlikely(!adev->tx_free)) { ++ printk("acx: BUG: no free txdesc left\n"); ++ /* ++ * Probably the ACX ignored a transmit attempt and now there's a packet ++ * sitting in the queue we think should be transmitting but the ACX doesn't ++ * know about. ++ * On the first pass, send the ACX a TxProc interrupt to try moving ++ * things along, and if that doesn't work (ie, we get called again) completely ++ * flush the transmit queue. ++ */ ++ if (txattempts < 10) { ++ txattempts++; ++ printk ("acx: trying to wake up ACX\n"); ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC); ++ write_flush(adev); } ++ else { ++ txattempts = 0; ++ printk ("acx: flushing transmit queue.\n"); ++ acxmem_l_clean_txdesc_emergency (adev); ++ } ++ txdesc = NULL; ++ goto end; ++ } ++ ++ /* ++ * Make a quick check to see if there is transmit buffer space on ++ * the ACX. This can't guarantee there is enough space for the packet ++ * since we don't yet know how big it is, but it will prevent at least some ++ * annoyances. ++ */ ++ if (!adev->acx_txbuf_blocks_free) { ++ txdesc = NULL; ++ goto end; ++ } ++ ++ head = adev->tx_head; ++ /* ++ * txdesc points to ACX memory ++ */ ++ txdesc = get_txdesc(adev, head); ++ ctl8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ ++ /* ++ * If we don't own the buffer (HOSTOWN) it is certainly not free; however, ++ * we may have previously thought we had enough memory to send ++ * a packet, allocated the buffer then gave up when we found not enough ++ * transmit buffer space on the ACX. In that case, HOSTOWN and ++ * ACXDONE will both be set. ++ */ ++ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_HOSTOWN))) { ++ /* whoops, descr at current index is not free, so probably ++ * ring buffer already full */ ++ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find " ++ "free txdesc\n", head, ctl8); ++ txdesc = NULL; ++ goto end; ++ } ++ ++ /* Needed in case txdesc won't be eventually submitted for tx */ ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_ACXDONE_HOSTOWN); ++ ++ adev->tx_free--; ++ log(L_BUFT, "tx: got desc %u, %u remain\n", ++ head, adev->tx_free); ++ /* Keep a few free descs between head and tail of tx ring. ++ ** It is not absolutely needed, just feels safer */ ++ if (adev->tx_free < TX_STOP_QUEUE) { ++ log(L_BUF, "stop queue (%u tx desc left)\n", ++ adev->tx_free); ++ acx_stop_queue(adev->ndev, NULL); ++ } ++ ++ /* returning current descriptor, so advance to next free one */ ++ adev->tx_head = (head + 1) % TX_CNT; ++end: ++ FN_EXIT0; ++ ++ return (tx_t*)txdesc; ++} ++ ++ ++/*************************************************************** ++** acxmem_l_dealloc_tx ++** Clears out a previously allocatedvoid acxmem_l_dealloc_tx(tx_t *tx_opaque); ++ transmit descriptor. The ACX ++** can get confused if we skip transmit descriptors in the queue, ++** so when we don't need a descriptor return it to its original ++** state and move the queue head pointer back. ++** ++*/ ++void ++acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque) ++{ ++ /* ++ * txdesc is the address of the descriptor on the ACX. ++ */ ++ txdesc_t *txdesc = (txdesc_t*)tx_opaque; ++ txdesc_t tmptxdesc; ++ int index; ++ ++ memset (&tmptxdesc, 0, sizeof(tmptxdesc)); ++ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG; ++ tmptxdesc.u.r1.rate = 0x0a; ++ ++ /* ++ * Clear out all of the transmit descriptor except for the next pointer ++ */ ++ copy_to_slavemem (adev, (u32) &(txdesc->HostMemPtr), ++ (u8 *) &(tmptxdesc.HostMemPtr), ++ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc)); ++ ++ /* ++ * This is only called immediately after we've allocated, so we should ++ * be able to set the head back to this descriptor. ++ */ ++ index = ((u8*) txdesc - (u8*)adev->txdesc_start) / adev->txdesc_size; ++ printk ("acx_dealloc: moving head from %d to %d\n", adev->tx_head, index); ++ adev->tx_head = index; ++} ++ ++ ++/*********************************************************************** ++*/ ++void* ++acxmem_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque) ++{ ++ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data; ++} ++ ++ ++/*********************************************************************** ++** acxmem_l_tx_data ++** ++** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx). ++** Can be called from acx_i_start_xmit (data frames from net core). ++** ++** FIXME: in case of fragments, should loop over the number of ++** pre-allocated tx descrs, properly setting up transfer data and ++** CTL_xxx flags according to fragment number. ++*/ ++void ++acxmem_update_queue_indicator (acx_device_t *adev, int txqueue) ++{ ++#ifdef USING_MORE_THAN_ONE_TRANSMIT_QUEUE ++ u32 indicator; ++ unsigned long flags; ++ int count; ++ ++ /* ++ * Can't handle an interrupt while we're fiddling with the ACX's lock, ++ * according to TI. The ACX is supposed to hold fw_lock for at most ++ * 500ns. ++ */ ++ local_irq_save (flags); ++ ++ /* ++ * Wait for ACX to release the lock (at most 500ns). ++ */ ++ count = 0; ++ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock)) ++ && (count++ < 50)) { ++ ndelay (10); ++ } ++ if (count < 50) { ++ ++ /* ++ * Take out the host lock - anything non-zero will work, so don't worry about ++ * be/le ++ */ ++ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 1); ++ ++ /* ++ * Avoid a race condition ++ */ ++ count = 0; ++ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock)) ++ && (count++ < 50)) { ++ ndelay (10); ++ } ++ ++ if (count < 50) { ++ /* ++ * Mark the queue active ++ */ ++ indicator = read_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator)); ++ indicator |= cpu_to_le32 (1 << txqueue); ++ write_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator), indicator); ++ } ++ ++ /* ++ * Release the host lock ++ */ ++ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 0); ++ ++ } ++ ++ /* ++ * Restore interrupts ++ */ ++ local_irq_restore (flags); ++#endif ++} ++ ++void ++acxmem_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len) ++{ ++ /* ++ * txdesc is the address on the ACX ++ */ ++ txdesc_t *txdesc = (txdesc_t*)tx_opaque; ++ txhostdesc_t *hostdesc1, *hostdesc2; ++ client_t *clt; ++ u16 rate_cur; ++ u8 Ctl_8, Ctl2_8; ++ u32 addr; ++ ++ FN_ENTER; ++ /* fw doesn't tx such packets anyhow */ ++ if (unlikely(len < WLAN_HDR_A3_LEN)) ++ goto end; ++ ++ hostdesc1 = get_txhostdesc(adev, txdesc); ++ /* modify flag status in separate variable to be able to write it back ++ * in one big swoop later (also in order to have less device memory ++ * accesses) */ ++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */ ++ ++ hostdesc2 = hostdesc1 + 1; ++ ++ /* DON'T simply set Ctl field to 0 here globally, ++ * it needs to maintain a consistent flag status (those are state flags!!), ++ * otherwise it may lead to severe disruption. Only set or reset particular ++ * flags at the exact moment this is needed... */ ++ ++ /* let chip do RTS/CTS handshaking before sending ++ * in case packet size exceeds threshold */ ++ if (len > adev->rts_threshold) ++ SET_BIT(Ctl2_8, DESC_CTL2_RTS); ++ else ++ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS); ++ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_3_AP: ++ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1); ++ break; ++ case ACX_MODE_2_STA: ++ clt = adev->ap_client; ++ break; ++#if 0 ++/* testing was done on acx111: */ ++ case ACX_MODE_MONITOR: ++ SET_BIT(Ctl2_8, 0 ++/* sends CTS to self before packet */ ++ + DESC_CTL2_SEQ /* don't increase sequence field */ ++/* not working (looks like good fcs is still added) */ ++ + DESC_CTL2_FCS /* don't add the FCS */ ++/* not tested */ ++ + DESC_CTL2_MORE_FRAG ++/* not tested */ ++ + DESC_CTL2_RETRY /* don't increase retry field */ ++/* not tested */ ++ + DESC_CTL2_POWER /* don't increase power mgmt. field */ ++/* no effect */ ++ + DESC_CTL2_WEP /* encrypt this frame */ ++/* not tested */ ++ + DESC_CTL2_DUR /* don't increase duration field */ ++ ); ++ /* fallthrough */ ++#endif ++ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */ ++ clt = NULL; ++ break; ++ } ++ ++ rate_cur = clt ? clt->rate_cur : adev->rate_bcast; ++ if (unlikely(!rate_cur)) { ++ printk("acx: driver bug! bad ratemask\n"); ++ goto end; ++ } ++ ++ /* used in tx cleanup routine for auto rate and accounting: */ ++ put_txcr(adev, txdesc, clt, rate_cur); ++ ++ write_slavemem16 (adev, (u32) &(txdesc->total_length), cpu_to_le16(len)); ++ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN); ++ if (IS_ACX111(adev)) { ++ /* note that if !txdesc->do_auto, txrate->cur ++ ** has only one nonzero bit */ ++ txdesc->u.r2.rate111 = cpu_to_le16( ++ rate_cur ++ /* WARNING: I was never able to make it work with prism54 AP. ++ ** It was falling down to 1Mbit where shortpre is not applicable, ++ ** and not working at all at "5,11 basic rates only" setting. ++ ** I even didn't see tx packets in radio packet capture. ++ ** Disabled for now --vda */ ++ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */ ++ ); ++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS ++ /* should add this to rate111 above as necessary */ ++ | (clt->pbcc511 ? RATE111_PBCC511 : 0) ++#endif ++ hostdesc1->length = cpu_to_le16(len); ++ } else { /* ACX100 */ ++ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100; ++ write_slavemem8 (adev, (u32) &(txdesc->u.r1.rate), rate_100); ++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS ++ if (clt->pbcc511) { ++ if (n == RATE100_5 || n == RATE100_11) ++ n |= RATE100_PBCC511; ++ } ++ ++ if (clt->shortpre && (clt->cur != RATE111_1)) ++ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */ ++#endif ++ /* set autodma and reclaim and 1st mpdu */ ++ SET_BIT(Ctl_8, DESC_CTL_FIRSTFRAG); ++ ++#if ACX_FRAGMENTATION ++ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */ ++#endif ++ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN); ++ ++ /* ++ * Since we're not using autodma copy the packet data to the acx now. ++ * Even host descriptors point to the packet header, and the odd indexed ++ * descriptor following points to the packet data. ++ * ++ * The first step is to find free memory in the ACX transmit buffers. ++ * They don't necessarily map one to one with the transmit queue entries, ++ * so search through them starting just after the last one used. ++ */ ++ addr = allocate_acx_txbuf_space (adev, len); ++ if (addr) { ++ chaincopy_to_slavemem (adev, addr, hostdesc1->data, len); ++ } ++ else { ++ /* ++ * Bummer. We thought we might have enough room in the transmit ++ * buffers to send this packet, but it turns out we don't. alloc_tx ++ * has already marked this transmit descriptor as HOSTOWN and ACXDONE, ++ * which means the ACX will hang when it gets to this descriptor unless ++ * we do something about it. Having a bubble in the transmit queue just ++ * doesn't seem to work, so we have to reset this transmit queue entry's ++ * state to its original value and back up our head pointer to point ++ * back to this entry. ++ */ ++ hostdesc1->length = 0; ++ hostdesc2->length = 0; ++ write_slavemem16 (adev, (u32) &(txdesc->total_length), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG); ++ adev->tx_head = ((u8*) txdesc - (u8*) adev->txdesc_start) / adev->txdesc_size; ++ goto end; ++ } ++ /* ++ * Tell the ACX where the packet is. ++ */ ++ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), addr); ++ ++ } ++ /* don't need to clean ack/rts statistics here, already ++ * done on descr cleanup */ ++ ++ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors ++ * are now owned by the acx100; do this as LAST operation */ ++ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN); ++ /* flush writes before we release hostdesc to the adapter here */ ++ //wmb(); ++ ++ /* write back modified flags */ ++ /* ++ * At this point Ctl_8 should just be FIRSTFRAG ++ */ ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl2_8),Ctl2_8); ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), Ctl_8); ++ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */ ++ ++ /* ++ * Update the queue indicator to say there's data on the first queue. ++ */ ++ acxmem_update_queue_indicator (adev, 0); ++ ++ /* flush writes before we tell the adapter that it's its turn now */ ++ mmiowb(); ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC); ++ write_flush(adev); ++ ++ /* log the packet content AFTER sending it, ++ * in order to not delay sending any further than absolutely needed ++ * Do separate logs for acx100/111 to have human-readable rates */ ++ if (unlikely(acx_debug & (L_XFER|L_DATA))) { ++ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc; ++ if (IS_ACX111(adev)) ++ printk("tx: pkt (%s): len %d " ++ "rate %04X%s status %u\n", ++ acx_get_packet_type_string(le16_to_cpu(fc)), len, ++ le16_to_cpu(txdesc->u.r2.rate111), ++ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "", ++ adev->status); ++ else ++ printk("tx: pkt (%s): len %d rate %03u%s status %u\n", ++ acx_get_packet_type_string(fc), len, ++ read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate)), ++ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "", ++ adev->status); ++ ++ if (acx_debug & L_DATA) { ++ printk("tx: 802.11 [%d]: ", len); ++ acx_dump_bytes(hostdesc1->data, len); ++ } ++ } ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_l_clean_txdesc ++** ++** This function resets the txdescs' status when the ACX100 ++** signals the TX done IRQ (txdescs have been processed), starting with ++** the pool index of the descriptor which we would use next, ++** in order to make sure that we can be as fast as possible ++** in filling new txdescs. ++** Everytime we get called we know where the next packet to be cleaned is. ++*/ ++ ++#if !ACX_DEBUG ++static inline void log_txbuffer(const acx_device_t *adev) {} ++#else ++static void ++log_txbuffer(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ int i; ++ u8 Ctl_8; ++ ++ /* no FN_ENTER here, we don't want that */ ++ /* no locks here, since it's entirely non-critical code */ ++ txdesc = adev->txdesc_start; ++ if (unlikely(!txdesc)) return; ++ printk("tx: desc->Ctl8's:"); ++ for (i = 0; i < TX_CNT; i++) { ++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ printk(" %02X", Ctl_8); ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ printk("\n"); ++} ++#endif ++ ++ ++static void ++handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger) ++{ ++ const char *err = "unknown error"; ++ ++ /* hmm, should we handle this as a mask ++ * of *several* bits? ++ * For now I think only caring about ++ * individual bits is ok... */ ++ switch (error) { ++ case 0x01: ++ err = "no Tx due to error in other fragment"; ++ adev->wstats.discard.fragment++; ++ break; ++ case 0x02: ++ err = "Tx aborted"; ++ adev->stats.tx_aborted_errors++; ++ break; ++ case 0x04: ++ err = "Tx desc wrong parameters"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x08: ++ err = "WEP key not found"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x10: ++ err = "MSDU lifetime timeout? - try changing " ++ "'iwconfig retry lifetime XXX'"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x20: ++ err = "excessive Tx retries due to either distance " ++ "too high or unable to Tx or Tx frame error - " ++ "try changing 'iwconfig txpower XXX' or " ++ "'sens'itivity or 'retry'"; ++ adev->wstats.discard.retries++; ++ /* Tx error 0x20 also seems to occur on ++ * overheating, so I'm not sure whether we ++ * actually want to do aggressive radio recalibration, ++ * since people maybe won't notice then that their hardware ++ * is slowly getting cooked... ++ * Or is it still a safe long distance from utter ++ * radio non-functionality despite many radio recalibs ++ * to final destructive overheating of the hardware? ++ * In this case we really should do recalib here... ++ * I guess the only way to find out is to do a ++ * potentially fatal self-experiment :-\ ++ * Or maybe only recalib in case we're using Tx ++ * rate auto (on errors switching to lower speed ++ * --> less heat?) or 802.11 power save mode? ++ * ++ * ok, just do it. */ ++ if (++adev->retry_errors_msg_ratelimit % 4 == 0) { ++ if (adev->retry_errors_msg_ratelimit <= 20) { ++ printk("%s: several excessive Tx " ++ "retry errors occurred, attempting " ++ "to recalibrate radio. Radio " ++ "drift might be caused by increasing " ++ "card temperature, please check the card " ++ "before it's too late!\n", ++ adev->ndev->name); ++ if (adev->retry_errors_msg_ratelimit == 20) ++ printk("disabling above message\n"); ++ } ++ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB); ++ } ++ break; ++ case 0x40: ++ err = "Tx buffer overflow"; ++ adev->stats.tx_fifo_errors++; ++ break; ++ case 0x80: ++ err = "DMA error"; ++ adev->wstats.discard.misc++; ++ break; ++ } ++ adev->stats.tx_errors++; ++ if (adev->stats.tx_errors <= 20) ++ printk("%s: tx error 0x%02X, buf %02u! (%s)\n", ++ adev->ndev->name, error, finger, err); ++ else ++ printk("%s: tx error 0x%02X, buf %02u!\n", ++ adev->ndev->name, error, finger); ++} ++ ++ ++unsigned int ++acxmem_l_clean_txdesc(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ unsigned finger; ++ int num_cleaned; ++ u16 r111; ++ u8 error, ack_failures, rts_failures, rts_ok, r100, Ctl_8; ++ u32 acxmem; ++ txdesc_t tmptxdesc; ++ ++ FN_ENTER; ++ ++ /* ++ * Set up a template descriptor for re-initialization. The only ++ * things that get set are Ctl_8 and the rate, and the rate defaults ++ * to 1Mbps. ++ */ ++ memset (&tmptxdesc, 0, sizeof (tmptxdesc)); ++ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG; ++ tmptxdesc.u.r1.rate = 0x0a; ++ ++ if (unlikely(acx_debug & L_DEBUG)) ++ log_txbuffer(adev); ++ ++ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail); ++ ++ /* We know first descr which is not free yet. We advance it as far ++ ** as we see correct bits set in following descs (if next desc ++ ** is NOT free, we shouldn't advance at all). We know that in ++ ** front of tx_tail may be "holes" with isolated free descs. ++ ** We will catch up when all intermediate descs will be freed also */ ++ ++ finger = adev->tx_tail; ++ num_cleaned = 0; ++ while (likely(finger != adev->tx_head)) { ++ txdesc = get_txdesc(adev, finger); ++ ++ /* If we allocated txdesc on tx path but then decided ++ ** to NOT use it, then it will be left as a free "bubble" ++ ** in the "allocated for tx" part of the ring. ++ ** We may meet it on the next ring pass here. */ ++ ++ /* stop if not marked as "tx finished" and "host owned" */ ++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ if ((Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN) ++ != DESC_CTL_ACXDONE_HOSTOWN) { ++ if (unlikely(!num_cleaned)) { /* maybe remove completely */ ++ log(L_BUFT, "clean_txdesc: tail isn't free. " ++ "tail:%d head:%d\n", ++ adev->tx_tail, adev->tx_head); ++ } ++ break; ++ } ++ ++ /* remember desc values... */ ++ error = read_slavemem8 (adev, (u32) &(txdesc->error)); ++ ack_failures = read_slavemem8 (adev, (u32) &(txdesc->ack_failures)); ++ rts_failures = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures)); ++ rts_ok = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok)); ++ r100 = read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate)); ++ r111 = le16_to_cpu(read_slavemem16 (adev, (u32) &(txdesc->u.r2.rate111))); ++ ++ /* need to check for certain error conditions before we ++ * clean the descriptor: we still need valid descr data here */ ++ if (unlikely(0x30 & error)) { ++ /* only send IWEVTXDROP in case of retry or lifetime exceeded; ++ * all other errors mean we screwed up locally */ ++ union iwreq_data wrqu; ++ wlan_hdr_t *hdr; ++ txhostdesc_t *hostdesc; ++ ++ hostdesc = get_txhostdesc(adev, txdesc); ++ hdr = (wlan_hdr_t *)hostdesc->data; ++ MAC_COPY(wrqu.addr.sa_data, hdr->a1); ++ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL); ++ } ++ ++ /* ++ * Free up the transmit data buffers ++ */ ++ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr)); ++ if (acxmem) { ++ reclaim_acx_txbuf_space (adev, acxmem); ++ } ++ ++ /* ...and free the desc by clearing all the fields ++ except the next pointer */ ++ copy_to_slavemem (adev, ++ (u32) &(txdesc->HostMemPtr), ++ (u8 *) &(tmptxdesc.HostMemPtr), ++ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc) ++ ); ++ ++ adev->tx_free++; ++ num_cleaned++; ++ ++ if ((adev->tx_free >= TX_START_QUEUE) ++ && (adev->status == ACX_STATUS_4_ASSOCIATED) ++ && (acx_queue_stopped(adev->ndev)) ++ ) { ++ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n", ++ adev->tx_free); ++ acx_wake_queue(adev->ndev, NULL); ++ } ++ ++ /* do error checking, rate handling and logging ++ * AFTER having done the work, it's faster */ ++ ++ /* do rate handling */ ++ if (adev->rate_auto) { ++ struct client *clt = get_txc(adev, txdesc); ++ if (clt) { ++ u16 cur = get_txr(adev, txdesc); ++ if (clt->rate_cur == cur) { ++ acx_l_handle_txrate_auto(adev, clt, ++ cur, /* intended rate */ ++ r100, r111, /* actually used rate */ ++ (error & 0x30), /* was there an error? */ ++ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free); ++ } ++ } ++ } ++ ++ if (unlikely(error)) ++ handle_tx_error(adev, error, finger); ++ ++ if (IS_ACX111(adev)) ++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n", ++ finger, ack_failures, rts_failures, rts_ok, r111); ++ else ++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n", ++ finger, ack_failures, rts_failures, rts_ok, r100); ++ ++ /* update pointer for descr to be cleaned next */ ++ finger = (finger + 1) % TX_CNT; ++ } ++ ++ /* remember last position */ ++ adev->tx_tail = finger; ++/* end: */ ++ FN_EXIT1(num_cleaned); ++ return num_cleaned; ++} ++ ++/* clean *all* Tx descriptors, and regardless of their previous state. ++ * Used for brute-force reset handling. */ ++void ++acxmem_l_clean_txdesc_emergency(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ int i; ++ u32 acxmem; ++ ++ FN_ENTER; ++ ++ for (i = 0; i < TX_CNT; i++) { ++ txdesc = get_txdesc(adev, i); ++ ++ /* free it */ ++ write_slavemem8 (adev, (u32) &(txdesc->ack_failures), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->error), 0); ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN); ++ ++ /* ++ * Clean up the memory allocated on the ACX for this transmit descriptor. ++ */ ++ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr)); ++ if (acxmem) { ++ reclaim_acx_txbuf_space (adev, acxmem); ++ } ++ ++ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), 0); ++ } ++ ++ adev->tx_free = TX_CNT; ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxmem_s_create_tx_host_desc_queue ++*/ ++ ++static void* ++allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg) ++{ ++ void *ptr; ++ ptr = kmalloc (size, GFP_KERNEL); ++ /* ++ * The ACX can't use the physical address, so we'll have to fake it ++ * later and it might be handy to have the virtual address. ++ */ ++ *phy = (dma_addr_t) NULL; ++ ++ if (ptr) { ++ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n", ++ msg, (int)size, ptr, (unsigned long long)*phy); ++ memset(ptr, 0, size); ++ return ptr; ++ } ++ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n", ++ msg, (int)size); ++ return NULL; ++} ++ ++ ++/* ++ * In the generic slave memory access mode, most of the stuff in ++ * the txhostdesc_t is unused. It's only here because the rest of ++ * the ACX driver expects it to be since the PCI version uses indirect ++ * host memory organization with DMA. Since we're not using DMA the ++ * only use we have for the host descriptors is to store the packets ++ * on the way out. ++ */ ++static int ++acxmem_s_create_tx_host_desc_queue(acx_device_t *adev) ++{ ++ txhostdesc_t *hostdesc; ++ u8 *txbuf; ++ int i; ++ ++ FN_ENTER; ++ ++ /* allocate TX buffer */ ++ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS; ++ ++ adev->txbuf_start = allocate(adev, adev->txbuf_area_size, ++ &adev->txbuf_startphy, "txbuf_start"); ++ if (!adev->txbuf_start) ++ goto fail; ++ ++ /* allocate the TX host descriptor queue pool */ ++ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc); ++ ++ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size, ++ &adev->txhostdesc_startphy, "txhostdesc_start"); ++ if (!adev->txhostdesc_start) ++ goto fail; ++ ++ /* check for proper alignment of TX host descriptor pool */ ++ if ((long) adev->txhostdesc_start & 3) { ++ printk("acx: driver bug: dma alloc returns unaligned address\n"); ++ goto fail; ++ } ++ ++ hostdesc = adev->txhostdesc_start; ++ txbuf = adev->txbuf_start; ++ ++#if 0 ++/* Each tx buffer is accessed by hardware via ++** txdesc -> txhostdesc(s) -> txbuffer(s). ++** We use only one txhostdesc per txdesc, but it looks like ++** acx111 is buggy: it accesses second txhostdesc ++** (via hostdesc.desc_phy_next field) even if ++** txdesc->length == hostdesc->length and thus ++** entire packet was placed into first txhostdesc. ++** Due to this bug acx111 hangs unless second txhostdesc ++** has le16_to_cpu(hostdesc.length) = 3 (or larger) ++** Storing NULL into hostdesc.desc_phy_next ++** doesn't seem to help. ++** ++** Update: although it worked on Xterasys XN-2522g ++** with len=3 trick, WG311v2 is even more bogus, doesn't work. ++** Keeping this code (#ifdef'ed out) for documentational purposes. ++*/ ++ for (i = 0; i < TX_CNT*2; i++) { ++ hostdesc_phy += sizeof(*hostdesc); ++ if (!(i & 1)) { ++ hostdesc->data_phy = cpu2acx(txbuf_phy); ++ /* hostdesc->data_offset = ... */ ++ /* hostdesc->reserved = ... */ ++ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN); ++ /* hostdesc->length = ... */ ++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy); ++ hostdesc->pNext = ptr2acx(NULL); ++ /* hostdesc->Status = ... */ ++ /* below: non-hardware fields */ ++ hostdesc->data = txbuf; ++ ++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS; ++ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS; ++ } else { ++ /* hostdesc->data_phy = ... */ ++ /* hostdesc->data_offset = ... */ ++ /* hostdesc->reserved = ... */ ++ /* hostdesc->Ctl_16 = ... */ ++ hostdesc->length = cpu_to_le16(3); /* bug workaround */ ++ /* hostdesc->desc_phy_next = ... */ ++ /* hostdesc->pNext = ... */ ++ /* hostdesc->Status = ... */ ++ /* below: non-hardware fields */ ++ /* hostdesc->data = ... */ ++ } ++ hostdesc++; ++ } ++#endif ++/* We initialize two hostdescs so that they point to adjacent ++** memory areas. Thus txbuf is really just a contiguous memory area */ ++ for (i = 0; i < TX_CNT*2; i++) { ++ /* ->data is a non-hardware field: */ ++ hostdesc->data = txbuf; ++ ++ if (!(i & 1)) { ++ txbuf += WLAN_HDR_A3_LEN; ++ } else { ++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN; ++ } ++ hostdesc++; ++ } ++ hostdesc--; ++ ++ FN_EXIT1(OK); ++ return OK; ++fail: ++ printk("acx: create_tx_host_desc_queue FAILED\n"); ++ /* dealloc will be done by free function on error case */ ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*************************************************************** ++** acxmem_s_create_rx_host_desc_queue ++*/ ++/* the whole size of a data buffer (header plus data body) ++ * plus 32 bytes safety offset at the end */ ++#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32) ++ ++static int ++acxmem_s_create_rx_host_desc_queue(acx_device_t *adev) ++{ ++ rxhostdesc_t *hostdesc; ++ rxbuffer_t *rxbuf; ++ int i; ++ ++ FN_ENTER; ++ ++ /* allocate the RX host descriptor queue pool */ ++ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc); ++ ++ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size, ++ &adev->rxhostdesc_startphy, "rxhostdesc_start"); ++ if (!adev->rxhostdesc_start) ++ goto fail; ++ ++ /* check for proper alignment of RX host descriptor pool */ ++ if ((long) adev->rxhostdesc_start & 3) { ++ printk("acx: driver bug: dma alloc returns unaligned address\n"); ++ goto fail; ++ } ++ ++ /* allocate Rx buffer pool which will be used by the acx ++ * to store the whole content of the received frames in it */ ++ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE; ++ ++ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size, ++ &adev->rxbuf_startphy, "rxbuf_start"); ++ if (!adev->rxbuf_start) ++ goto fail; ++ ++ rxbuf = adev->rxbuf_start; ++ hostdesc = adev->rxhostdesc_start; ++ ++ /* don't make any popular C programming pointer arithmetic mistakes ++ * here, otherwise I'll kill you... ++ * (and don't dare asking me why I'm warning you about that...) */ ++ for (i = 0; i < RX_CNT; i++) { ++ hostdesc->data = rxbuf; ++ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE); ++ rxbuf++; ++ hostdesc++; ++ } ++ hostdesc--; ++ FN_EXIT1(OK); ++ return OK; ++fail: ++ printk("acx: create_rx_host_desc_queue FAILED\n"); ++ /* dealloc will be done by free function on error case */ ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*************************************************************** ++** acxmem_s_create_hostdesc_queues ++*/ ++int ++acxmem_s_create_hostdesc_queues(acx_device_t *adev) ++{ ++ int result; ++ result = acxmem_s_create_tx_host_desc_queue(adev); ++ if (OK != result) return result; ++ result = acxmem_s_create_rx_host_desc_queue(adev); ++ return result; ++} ++ ++ ++/*************************************************************** ++** acxmem_create_tx_desc_queue ++*/ ++static void ++acxmem_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start) ++{ ++ txdesc_t *txdesc; ++ u32 clr; ++ int i; ++ ++ FN_ENTER; ++ ++ if (IS_ACX100(adev)) ++ adev->txdesc_size = sizeof(*txdesc); ++ else ++ /* the acx111 txdesc is 4 bytes larger */ ++ adev->txdesc_size = sizeof(*txdesc) + 4; ++ ++ /* ++ * This refers to an ACX address, not one of ours ++ */ ++ adev->txdesc_start = (txdesc_t *) tx_queue_start; ++ ++ log(L_DEBUG, "adev->txdesc_start=%p\n", ++ adev->txdesc_start); ++ ++ adev->tx_free = TX_CNT; ++ /* done by memset: adev->tx_head = 0; */ ++ /* done by memset: adev->tx_tail = 0; */ ++ txdesc = adev->txdesc_start; ++ ++ if (IS_ACX111(adev)) { ++ /* ACX111 has a preinitialized Tx buffer! */ ++ /* loop over whole send pool */ ++ /* FIXME: do we have to do the hostmemptr stuff here?? */ ++ for (i = 0; i < TX_CNT; i++) { ++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN; ++ /* reserve two (hdr desc and payload desc) */ ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ } else { ++ /* ACX100 Tx buffer needs to be initialized by us */ ++ /* clear whole send pool. sizeof is safe here (we are acx100) */ ++ ++ /* ++ * adev->txdesc_start refers to device memory, so we can't write ++ * directly to it. ++ */ ++ clr = (u32) adev->txdesc_start; ++ while (clr < (u32) adev->txdesc_start + (TX_CNT * sizeof(*txdesc))) { ++ write_slavemem32 (adev, clr, 0); ++ clr += 4; ++ } ++ ++ /* loop over whole send pool */ ++ for (i = 0; i < TX_CNT; i++) { ++ log(L_DEBUG, "configure card tx descriptor: 0x%p, " ++ "size: 0x%X\n", txdesc, adev->txdesc_size); ++ ++ /* initialise ctl */ ++ /* ++ * No auto DMA here ++ */ ++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), ++ (u8) (DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG)); ++ /* done by memset(0): txdesc->Ctl2_8 = 0; */ ++ ++ /* point to next txdesc */ ++ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc), ++ (u32) cpu_to_le32 ((u8 *) txdesc + adev->txdesc_size)); ++ ++ /* go to the next one */ ++ /* ++ is safe here (we are acx100) */ ++ txdesc++; ++ } ++ /* go back to the last one */ ++ txdesc--; ++ /* and point to the first making it a ring buffer */ ++ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc), ++ (u32) cpu_to_le32 (tx_queue_start)); ++ } ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxmem_create_rx_desc_queue ++*/ ++static void ++acxmem_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start) ++{ ++ rxdesc_t *rxdesc; ++ u32 mem_offs; ++ int i; ++ ++ FN_ENTER; ++ ++ /* done by memset: adev->rx_tail = 0; */ ++ ++ /* ACX111 doesn't need any further config: preconfigures itself. ++ * Simply print ring buffer for debugging */ ++ if (IS_ACX111(adev)) { ++ /* rxdesc_start already set here */ ++ ++ adev->rxdesc_start = (rxdesc_t *) rx_queue_start; ++ ++ rxdesc = adev->rxdesc_start; ++ for (i = 0; i < RX_CNT; i++) { ++ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc); ++ rxdesc = adev->rxdesc_start = (rxdesc_t *) ++ acx2cpu(rxdesc->pNextDesc); ++ } ++ } else { ++ /* we didn't pre-calculate rxdesc_start in case of ACX100 */ ++ /* rxdesc_start should be right AFTER Tx pool */ ++ adev->rxdesc_start = (rxdesc_t *) ++ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t))); ++ /* NB: sizeof(txdesc_t) above is valid because we know ++ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere! ++ ** acx111's txdesc is larger! */ ++ ++ mem_offs = (u32) adev->rxdesc_start; ++ while (mem_offs < (u32) adev->rxdesc_start + (RX_CNT * sizeof (*rxdesc))) { ++ write_slavemem32 (adev, mem_offs, 0); ++ mem_offs += 4; ++ } ++ ++ /* loop over whole receive pool */ ++ rxdesc = adev->rxdesc_start; ++ for (i = 0; i < RX_CNT; i++) { ++ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc); ++ /* point to next rxdesc */ ++ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc), ++ (u32) cpu_to_le32 ((u8 *) rxdesc + sizeof(*rxdesc))); ++ /* go to the next one */ ++ rxdesc++; ++ } ++ /* go to the last one */ ++ rxdesc--; ++ ++ /* and point to the first making it a ring buffer */ ++ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc), ++ (u32) cpu_to_le32 (rx_queue_start)); ++ } ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxmem_create_desc_queues ++*/ ++void ++acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start) ++{ ++ u32 *p; ++ int i; ++ ++ acxmem_create_tx_desc_queue(adev, tx_queue_start); ++ acxmem_create_rx_desc_queue(adev, rx_queue_start); ++ p = (u32 *) adev->acx_queue_indicator; ++ for (i = 0; i < 4; i++) { ++ write_slavemem32 (adev, (u32) p, 0); ++ p++; ++ } ++} ++ ++ ++/*************************************************************** ++** acxmem_s_proc_diag_output ++*/ ++char* ++acxmem_s_proc_diag_output(char *p, acx_device_t *adev) ++{ ++ const char *rtl, *thd, *ttl; ++ txdesc_t *txdesc; ++ u8 Ctl_8; ++ rxdesc_t *rxdesc; ++ int i; ++ u32 tmp; ++ txdesc_t txd; ++ u8 buf[0x200]; ++ int j, k; ++ ++ FN_ENTER; ++ ++#if DUMP_MEM_DURING_DIAG > 0 ++ dump_acxmem (adev, 0, 0x10000); ++ panic ("dump finished"); ++#endif ++ ++ p += sprintf(p, "** Rx buf **\n"); ++ rxdesc = adev->rxdesc_start; ++ if (rxdesc) for (i = 0; i < RX_CNT; i++) { ++ rtl = (i == adev->rx_tail) ? " [tail]" : ""; ++ Ctl_8 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8)); ++ if (Ctl_8 & DESC_CTL_HOSTOWN) ++ p += sprintf(p, "%02u (%02x) FULL%s\n", i, Ctl_8, rtl); ++ else ++ p += sprintf(p, "%02u (%02x) empty%s\n", i, Ctl_8, rtl); ++ rxdesc++; ++ } ++ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free, ++ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running"); ++ ++ p += sprintf(p, "** Tx buf %d blocks total, %d available, free list head %04x\n", ++ adev->acx_txbuf_numblocks, adev->acx_txbuf_blocks_free, adev->acx_txbuf_free); ++ txdesc = adev->txdesc_start; ++ if (txdesc) { ++ for (i = 0; i < TX_CNT; i++) { ++ thd = (i == adev->tx_head) ? " [head]" : ""; ++ ttl = (i == adev->tx_tail) ? " [tail]" : ""; ++ copy_from_slavemem (adev, (u8 *) &txd, (u32) txdesc, sizeof (txd)); ++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8)); ++ if (Ctl_8 & DESC_CTL_ACXDONE) ++ p += sprintf(p, "%02u ready to free (%02X)%s%s", i, Ctl_8, thd, ttl); ++ else if (Ctl_8 & DESC_CTL_HOSTOWN) ++ p += sprintf(p, "%02u available (%02X)%s%s", i, Ctl_8, thd, ttl); ++ else ++ p += sprintf(p, "%02u busy (%02X)%s%s", i, Ctl_8, thd, ttl); ++ tmp = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr)); ++ if (tmp) { ++ p += sprintf (p, " %04x", tmp); ++ while ((tmp = read_slavemem32 (adev, (u32) tmp)) != 0x02000000) { ++ tmp <<= 5; ++ p += sprintf (p, " %04x", tmp); ++ } ++ } ++ p += sprintf (p, "\n"); ++ p += sprintf (p, " %04x: %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %02x %02x %02x %02x\n" ++ "%02x %02x %02x %02x %04x\n", ++ (u32) txdesc, ++ txd.pNextDesc.v, txd.HostMemPtr.v, txd.AcxMemPtr.v, txd.tx_time, ++ txd.total_length, txd.Reserved, ++ txd.dummy[0], txd.dummy[1], txd.dummy[2], txd.dummy[3], ++ txd.Ctl_8, txd.Ctl2_8, txd.error, txd.ack_failures, ++ txd.u.rts.rts_failures, txd.u.rts.rts_ok, txd.u.r1.rate, txd.u.r1.queue_ctrl, ++ txd.queue_info ++ ); ++ if (txd.AcxMemPtr.v) { ++ copy_from_slavemem (adev, buf, txd.AcxMemPtr.v, sizeof (buf)); ++ for (j = 0; (j < txd.total_length) && (j<(sizeof(buf)-4)); j+=16) { ++ p += sprintf (p, " "); ++ for (k = 0; (k < 16) && (j+k < txd.total_length); k++) { ++ p += sprintf (p, " %02x", buf[j+k+4]); ++ } ++ p += sprintf (p, "\n"); ++ } ++ } ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ } ++ ++ p += sprintf(p, ++ "\n" ++ "** Generic slave data **\n" ++ "irq_mask 0x%04x irq_status 0x%04x irq on acx 0x%04x\n" ++ "txbuf_start 0x%p, txbuf_area_size %u\n" ++ "txdesc_size %u, txdesc_start 0x%p\n" ++ "txhostdesc_start 0x%p, txhostdesc_area_size %u\n" ++ "txbuf start 0x%04x, txbuf size %d\n" ++ "rxdesc_start 0x%p\n" ++ "rxhostdesc_start 0x%p, rxhostdesc_area_size %u\n" ++ "rxbuf_start 0x%p, rxbuf_area_size %u\n", ++ adev->irq_mask, adev->irq_status, read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES), ++ adev->txbuf_start, adev->txbuf_area_size, ++ adev->txdesc_size, adev->txdesc_start, ++ adev->txhostdesc_start, adev->txhostdesc_area_size, ++ adev->acx_txbuf_start, adev->acx_txbuf_numblocks * adev->memblocksize, ++ adev->rxdesc_start, ++ adev->rxhostdesc_start, adev->rxhostdesc_area_size, ++ adev->rxbuf_start, adev->rxbuf_area_size); ++ FN_EXIT0; ++ return p; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acxmem_proc_eeprom_output(char *buf, acx_device_t *adev) ++{ ++ char *p = buf; ++ int i; ++ ++ FN_ENTER; ++ ++ for (i = 0; i < 0x400; i++) { ++ acxmem_read_eeprom_byte(adev, i, p++); ++ } ++ ++ FN_EXIT1(p - buf); ++ return p - buf; ++} ++ ++ ++/*********************************************************************** ++*/ ++void ++acxmem_set_interrupt_mask(acx_device_t *adev) ++{ ++ if (IS_ACX111(adev)) { ++ adev->irq_mask = (u16) ~(0 ++ | HOST_INT_RX_DATA ++ | HOST_INT_TX_COMPLETE ++ /* | HOST_INT_TX_XFER */ ++ /* | HOST_INT_RX_COMPLETE */ ++ /* | HOST_INT_DTIM */ ++ /* | HOST_INT_BEACON */ ++ /* | HOST_INT_TIMER */ ++ /* | HOST_INT_KEY_NOT_FOUND */ ++ | HOST_INT_IV_ICV_FAILURE ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ | HOST_INT_OVERFLOW ++ /* | HOST_INT_PROCESS_ERROR */ ++ | HOST_INT_SCAN_COMPLETE ++ | HOST_INT_FCS_THRESHOLD ++ | HOST_INT_UNKNOWN ++ ); ++ /* Or else acx100 won't signal cmd completion, right? */ ++ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */ ++ } else { ++ adev->irq_mask = (u16) ~(0 ++ | HOST_INT_RX_DATA ++ | HOST_INT_TX_COMPLETE ++ /* | HOST_INT_TX_XFER */ ++ /* | HOST_INT_RX_COMPLETE */ ++ /* | HOST_INT_DTIM */ ++ /* | HOST_INT_BEACON */ ++ /* | HOST_INT_TIMER */ ++ /* | HOST_INT_KEY_NOT_FOUND */ ++ /* | HOST_INT_IV_ICV_FAILURE */ ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ /* | HOST_INT_OVERFLOW */ ++ /* | HOST_INT_PROCESS_ERROR */ ++ | HOST_INT_SCAN_COMPLETE ++ /* | HOST_INT_FCS_THRESHOLD */ ++ /* | HOST_INT_BEACON_MISSED */ ++ ); ++ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */ ++ } ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm) ++{ ++ struct acx111_ie_tx_level tx_level; ++ ++ /* since it can be assumed that at least the Maxim radio has a ++ * maximum power output of 20dBm and since it also can be ++ * assumed that these values drive the DAC responsible for ++ * setting the linear Tx level, I'd guess that these values ++ * should be the corresponding linear values for a dBm value, ++ * in other words: calculate the values from that formula: ++ * Y [dBm] = 10 * log (X [mW]) ++ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm) ++ * and you're done... ++ * Hopefully that's ok, but you never know if we're actually ++ * right... (especially since Windows XP doesn't seem to show ++ * actual Tx dBm values :-P) */ ++ ++ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the ++ * values are EXACTLY mW!!! Not sure about RFMD and others, ++ * though... */ ++ static const u8 dbm2val_maxim[21] = { ++ 63, 63, 63, 62, ++ 61, 61, 60, 60, ++ 59, 58, 57, 55, ++ 53, 50, 47, 43, ++ 38, 31, 23, 13, ++ 0 ++ }; ++ static const u8 dbm2val_rfmd[21] = { ++ 0, 0, 0, 1, ++ 2, 2, 3, 3, ++ 4, 5, 6, 8, ++ 10, 13, 16, 20, ++ 25, 32, 41, 50, ++ 63 ++ }; ++ const u8 *table; ++ ++ switch (adev->radio_type) { ++ case RADIO_MAXIM_0D: ++ table = &dbm2val_maxim[0]; ++ break; ++ case RADIO_RFMD_11: ++ case RADIO_RALINK_15: ++ table = &dbm2val_rfmd[0]; ++ break; ++ default: ++ printk("%s: unknown/unsupported radio type, " ++ "cannot modify tx power level yet!\n", ++ adev->ndev->name); ++ return NOT_OK; ++ } ++ /* ++ * The hx4700 EEPROM, at least, only supports 1 power setting. The configure ++ * routine matches the PA bias with the gain, so just use its default value. ++ * The values are: 0x2b for the gain and 0x03 for the PA bias. The firmware ++ * writes the gain level to the Tx gain control DAC and the PA bias to the Maxim ++ * radio's PA bias register. The firmware limits itself to 0 - 64 when writing to the ++ * gain control DAC. ++ * ++ * Physically between the ACX and the radio, higher Tx gain control DAC values result ++ * in less power output; 0 volts to the Maxim radio results in the highest output power ++ * level, which I'm assuming matches up with 0 in the Tx Gain DAC register. ++ * ++ * Although there is only the 1 power setting, one of the radio firmware functions adjusts ++ * the transmit power level up and down. That function is called by the ACX FIQ handler ++ * under certain conditions. ++ */ ++ tx_level.level = 1; ++ //return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL); ++ ++ printk("%s: changing radio power level to %u dBm (%u)\n", ++ adev->ndev->name, level_dbm, table[level_dbm]); ++ acxmem_s_write_phy_reg(adev, 0x11, table[level_dbm]); ++ ++ return 0; ++} ++ ++ ++static struct platform_driver ++acxmem_drv_id = { ++ .driver = { ++ .name = "acx-mem", ++ }, ++ .probe = acxmem_e_probe, ++ .remove = __devexit_p(acxmem_e_remove), ++#ifdef CONFIG_PM ++ .suspend = acxmem_e_suspend, ++ .resume = acxmem_e_resume ++#endif /* CONFIG_PM */ ++}; ++ ++ ++/*********************************************************************** ++** acxmem_e_init_module ++** ++** Module initialization routine, called once at module load time ++*/ ++int __init ++acxmem_e_init_module(void) ++{ ++ int res; ++ ++ FN_ENTER; ++ ++#if (ACX_IO_WIDTH==32) ++ printk("acx: compiled to use 32bit I/O access. " ++ "I/O timing issues might occur, such as " ++ "non-working firmware upload. Report them\n"); ++#else ++ printk("acx: compiled to use 16bit I/O access only " ++ "(compatibility mode)\n"); ++#endif ++ ++#ifdef __LITTLE_ENDIAN ++#define ENDIANNESS_STRING "running on a little-endian CPU\n" ++#else ++#define ENDIANNESS_STRING "running on a BIG-ENDIAN CPU\n" ++#endif ++ log(L_INIT, ++ ENDIANNESS_STRING ++ "PCI module " ACX_RELEASE " initialized, " ++ "waiting for cards to probe...\n" ++ ); ++ ++ res = platform_driver_register (&acxmem_drv_id); ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acxmem_e_cleanup_module ++** ++** Called at module unload time. This is our last chance to ++** clean up after ourselves. ++*/ ++void __exit ++acxmem_e_cleanup_module(void) ++{ ++ FN_ENTER; ++ ++ printk ("cleanup_module\n"); ++ platform_driver_unregister( &acxmem_drv_id ); ++ ++ FN_EXIT0; ++} ++ ++void acxmem_e_release(struct device *dev) { ++} ++ ++MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" ); ++MODULE_DESCRIPTION( "ACX Slave Memory Driver" ); ++MODULE_LICENSE( "GPL" ); ++ +Index: linux-2.6.23/drivers/net/wireless/acx/pci.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/pci.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,4234 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++#define ACX_PCI 1 ++ ++#include <linux/version.h> ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) ++#include <linux/config.h> ++#endif ++ ++/* Linux 2.6.18+ uses <linux/utsrelease.h> */ ++#ifndef UTS_RELEASE ++#include <linux/utsrelease.h> ++#endif ++ ++#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/sched.h> ++#include <linux/types.h> ++#include <linux/skbuff.h> ++#include <linux/slab.h> ++#include <linux/if_arp.h> ++#include <linux/rtnetlink.h> ++#include <linux/wireless.h> ++#include <net/iw_handler.h> ++#include <linux/netdevice.h> ++#include <linux/ioport.h> ++#include <linux/pci.h> ++#include <linux/pm.h> ++#include <linux/vmalloc.h> ++#include <linux/dma-mapping.h> ++ ++#include "acx.h" ++ ++ ++/*********************************************************************** ++*/ ++#define PCI_TYPE (PCI_USES_MEM | PCI_ADDR0 | PCI_NO_ACPI_WAKE) ++#define PCI_ACX100_REGION1 0x01 ++#define PCI_ACX100_REGION1_SIZE 0x1000 /* Memory size - 4K bytes */ ++#define PCI_ACX100_REGION2 0x02 ++#define PCI_ACX100_REGION2_SIZE 0x10000 /* Memory size - 64K bytes */ ++ ++#define PCI_ACX111_REGION1 0x00 ++#define PCI_ACX111_REGION1_SIZE 0x2000 /* Memory size - 8K bytes */ ++#define PCI_ACX111_REGION2 0x01 ++#define PCI_ACX111_REGION2_SIZE 0x20000 /* Memory size - 128K bytes */ ++ ++/* Texas Instruments Vendor ID */ ++#define PCI_VENDOR_ID_TI 0x104c ++ ++/* ACX100 22Mb/s WLAN controller */ ++#define PCI_DEVICE_ID_TI_TNETW1100A 0x8400 ++#define PCI_DEVICE_ID_TI_TNETW1100B 0x8401 ++ ++/* ACX111 54Mb/s WLAN controller */ ++#define PCI_DEVICE_ID_TI_TNETW1130 0x9066 ++ ++/* PCI Class & Sub-Class code, Network-'Other controller' */ ++#define PCI_CLASS_NETWORK_OTHERS 0x0280 ++ ++#define CARD_EEPROM_ID_SIZE 6 ++ ++#ifndef PCI_D0 ++/* From include/linux/pci.h */ ++#define PCI_D0 0 ++#define PCI_D1 1 ++#define PCI_D2 2 ++#define PCI_D3hot 3 ++#define PCI_D3cold 4 ++#define PCI_UNKNOWN 5 ++#define PCI_POWER_ERROR -1 ++#endif ++ ++ ++/*********************************************************************** ++*/ ++static void acxpci_i_tx_timeout(struct net_device *ndev); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++static irqreturn_t acxpci_i_interrupt(int irq, void *dev_id); ++#else ++static irqreturn_t acxpci_i_interrupt(int irq, void *dev_id, struct pt_regs *regs); ++#endif ++static void acxpci_i_set_multicast_list(struct net_device *ndev); ++ ++static int acxpci_e_open(struct net_device *ndev); ++static int acxpci_e_close(struct net_device *ndev); ++static void acxpci_s_up(struct net_device *ndev); ++static void acxpci_s_down(struct net_device *ndev); ++ ++ ++/*********************************************************************** ++** Register access ++*/ ++ ++/* Pick one */ ++/* #define INLINE_IO static */ ++#define INLINE_IO static inline ++ ++INLINE_IO u32 ++read_reg32(acx_device_t *adev, unsigned int offset) ++{ ++#if ACX_IO_WIDTH == 32 ++ return readl((u8 *)adev->iobase + adev->io[offset]); ++#else ++ return readw((u8 *)adev->iobase + adev->io[offset]) ++ + (readw((u8 *)adev->iobase + adev->io[offset] + 2) << 16); ++#endif ++} ++ ++INLINE_IO u16 ++read_reg16(acx_device_t *adev, unsigned int offset) ++{ ++ return readw((u8 *)adev->iobase + adev->io[offset]); ++} ++ ++INLINE_IO u8 ++read_reg8(acx_device_t *adev, unsigned int offset) ++{ ++ return readb((u8 *)adev->iobase + adev->io[offset]); ++} ++ ++INLINE_IO void ++write_reg32(acx_device_t *adev, unsigned int offset, u32 val) ++{ ++#if ACX_IO_WIDTH == 32 ++ writel(val, (u8 *)adev->iobase + adev->io[offset]); ++#else ++ writew(val & 0xffff, (u8 *)adev->iobase + adev->io[offset]); ++ writew(val >> 16, (u8 *)adev->iobase + adev->io[offset] + 2); ++#endif ++} ++ ++INLINE_IO void ++write_reg16(acx_device_t *adev, unsigned int offset, u16 val) ++{ ++ writew(val, (u8 *)adev->iobase + adev->io[offset]); ++} ++ ++INLINE_IO void ++write_reg8(acx_device_t *adev, unsigned int offset, u8 val) ++{ ++ writeb(val, (u8 *)adev->iobase + adev->io[offset]); ++} ++ ++/* Handle PCI posting properly: ++ * Make sure that writes reach the adapter in case they require to be executed ++ * *before* the next write, by reading a random (and safely accessible) register. ++ * This call has to be made if there is no read following (which would flush the data ++ * to the adapter), yet the written data has to reach the adapter immediately. */ ++INLINE_IO void ++write_flush(acx_device_t *adev) ++{ ++ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */ ++ /* faster version (accesses the first register, IO_ACX_SOFT_RESET, ++ * which should also be safe): */ ++ readb(adev->iobase); ++} ++ ++INLINE_IO int ++adev_present(acx_device_t *adev) ++{ ++ /* fast version (accesses the first register, IO_ACX_SOFT_RESET, ++ * which should be safe): */ ++ return readl(adev->iobase) != 0xffffffff; ++} ++ ++ ++/*********************************************************************** ++*/ ++static inline txdesc_t* ++get_txdesc(acx_device_t *adev, int index) ++{ ++ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size); ++} ++ ++static inline txdesc_t* ++advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc) ++{ ++ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size); ++} ++ ++static txhostdesc_t* ++get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ return &adev->txhostdesc_start[index*2]; ++} ++ ++static inline client_t* ++get_txc(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return NULL; ++ } ++ return adev->txc[index]; ++} ++ ++static inline u16 ++get_txr(acx_device_t *adev, txdesc_t* txdesc) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ index /= adev->txdesc_size; ++ return adev->txr[index]; ++} ++ ++static inline void ++put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111) ++{ ++ int index = (u8*)txdesc - (u8*)adev->txdesc_start; ++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return; ++ } ++ index /= adev->txdesc_size; ++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) { ++ printk("bad txdesc ptr %p\n", txdesc); ++ return; ++ } ++ adev->txc[index] = c; ++ adev->txr[index] = r111; ++} ++ ++ ++/*********************************************************************** ++** EEPROM and PHY read/write helpers ++*/ ++/*********************************************************************** ++** acxpci_read_eeprom_byte ++** ++** Function called to read an octet in the EEPROM. ++** ++** This function is used by acxpci_e_probe to check if the ++** connected card is a legal one or not. ++** ++** Arguments: ++** adev ptr to acx_device structure ++** addr address to read in the EEPROM ++** charbuf ptr to a char. This is where the read octet ++** will be stored ++*/ ++int ++acxpci_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf) ++{ ++ int result; ++ int count; ++ ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ /* scheduling away instead of CPU burning loop ++ * doesn't seem to work here at all: ++ * awful delay, sometimes also failure. ++ * Doesn't matter anyway (only small delay). */ ++ if (unlikely(!--count)) { ++ printk("%s: timeout waiting for EEPROM read\n", ++ adev->ndev->name); ++ result = NOT_OK; ++ goto fail; ++ } ++ cpu_relax(); ++ } ++ ++ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA); ++ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf); ++ result = OK; ++ ++fail: ++ return result; ++} ++ ++ ++/*********************************************************************** ++** We don't lock hw accesses here since we never r/w eeprom in IRQ ++** Note: this function sleeps only because of GFP_KERNEL alloc ++*/ ++#ifdef UNUSED ++int ++acxpci_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf) ++{ ++ u8 *data_verify = NULL; ++ unsigned long flags; ++ int count, i; ++ int result = NOT_OK; ++ u16 gpio_orig; ++ ++ printk("acx: WARNING! I would write to EEPROM now. " ++ "Since I really DON'T want to unless you know " ++ "what you're doing (THIS CODE WILL PROBABLY " ++ "NOT WORK YET!), I will abort that now. And " ++ "definitely make sure to make a " ++ "/proc/driver/acx_wlan0_eeprom backup copy first!!! " ++ "(the EEPROM content includes the PCI config header!! " ++ "If you kill important stuff, then you WILL " ++ "get in trouble and people DID get in trouble already)\n"); ++ return OK; ++ ++ FN_ENTER; ++ ++ data_verify = kmalloc(len, GFP_KERNEL); ++ if (!data_verify) { ++ goto end; ++ } ++ ++ /* first we need to enable the OE (EEPROM Output Enable) GPIO line ++ * to be able to write to the EEPROM. ++ * NOTE: an EEPROM writing success has been reported, ++ * but you probably have to modify GPIO_OUT, too, ++ * and you probably need to activate a different GPIO ++ * line instead! */ ++ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE); ++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1); ++ write_flush(adev); ++ ++ /* ok, now start writing the data out */ ++ for (i = 0; i < len; i++) { ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i); ++ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i)); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 1); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ if (unlikely(!--count)) { ++ printk("WARNING, DANGER!!! " ++ "Timeout waiting for EEPROM write\n"); ++ goto end; ++ } ++ cpu_relax(); ++ } ++ } ++ ++ /* disable EEPROM writing */ ++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig); ++ write_flush(adev); ++ ++ /* now start a verification run */ ++ for (i = 0; i < len; i++) { ++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0); ++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) { ++ if (unlikely(!--count)) { ++ printk("timeout waiting for EEPROM read\n"); ++ goto end; ++ } ++ cpu_relax(); ++ } ++ ++ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA); ++ } ++ ++ if (0 == memcmp(charbuf, data_verify, len)) ++ result = OK; /* read data matches, success */ ++ ++end: ++ kfree(data_verify); ++ FN_EXIT1(result); ++ return result; ++} ++#endif /* UNUSED */ ++ ++ ++/*********************************************************************** ++** acxpci_s_read_phy_reg ++** ++** Messing with rx/tx disabling and enabling here ++** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic ++*/ ++int ++acxpci_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf) ++{ ++ int result = NOT_OK; ++ int count; ++ ++ FN_ENTER; ++ ++ write_reg32(adev, IO_ACX_PHY_ADDR, reg); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_PHY_CTL, 2); ++ ++ count = 0xffff; ++ while (read_reg32(adev, IO_ACX_PHY_CTL)) { ++ /* scheduling away instead of CPU burning loop ++ * doesn't seem to work here at all: ++ * awful delay, sometimes also failure. ++ * Doesn't matter anyway (only small delay). */ ++ if (unlikely(!--count)) { ++ printk("%s: timeout waiting for phy read\n", ++ adev->ndev->name); ++ *charbuf = 0; ++ goto fail; ++ } ++ cpu_relax(); ++ } ++ ++ log(L_DEBUG, "count was %u\n", count); ++ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA); ++ ++ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg); ++ result = OK; ++ goto fail; /* silence compiler warning */ ++fail: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acxpci_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value) ++{ ++ FN_ENTER; ++ ++ /* mprusko said that 32bit accesses result in distorted sensitivity ++ * on his card. Unconfirmed, looks like it's not true (most likely since we ++ * now properly flush writes). */ ++ write_reg32(adev, IO_ACX_PHY_DATA, value); ++ write_reg32(adev, IO_ACX_PHY_ADDR, reg); ++ write_flush(adev); ++ write_reg32(adev, IO_ACX_PHY_CTL, 1); ++ write_flush(adev); ++ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg); ++ ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++#define NO_AUTO_INCREMENT 1 ++ ++/*********************************************************************** ++** acxpci_s_write_fw ++** ++** Write the firmware image into the card. ++** ++** Arguments: ++** adev wlan device structure ++** fw_image firmware image. ++** ++** Returns: ++** 1 firmware image corrupted ++** 0 success ++*/ ++static int ++acxpci_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset) ++{ ++ int len, size; ++ u32 sum, v32; ++ /* we skip the first four bytes which contain the control sum */ ++ const u8 *p = (u8*)fw_image + 4; ++ ++ /* start the image checksum by adding the image size value */ ++ sum = p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ ++ write_reg32(adev, IO_ACX_SLV_END_CTL, 0); ++ ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */ ++#else ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */ ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */ ++ write_flush(adev); ++#endif ++ ++ len = 0; ++ size = le32_to_cpu(fw_image->size) & (~3); ++ ++ while (likely(len < size)) { ++ v32 = be32_to_cpu(*(u32*)p); ++ sum += p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ len += 4; ++ ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4); ++ write_flush(adev); ++#endif ++ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32); ++ } ++ ++ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n", ++ size, sum, le32_to_cpu(fw_image->chksum)); ++ ++ /* compare our checksum with the stored image checksum */ ++ return (sum != le32_to_cpu(fw_image->chksum)); ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_validate_fw ++** ++** Compare the firmware image given with ++** the firmware image written into the card. ++** ++** Arguments: ++** adev wlan device structure ++** fw_image firmware image. ++** ++** Returns: ++** NOT_OK firmware image corrupted or not correctly written ++** OK success ++*/ ++static int ++acxpci_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image, ++ u32 offset) ++{ ++ u32 sum, v32, w32; ++ int len, size; ++ int result = OK; ++ /* we skip the first four bytes which contain the control sum */ ++ const u8 *p = (u8*)fw_image + 4; ++ ++ /* start the image checksum by adding the image size value */ ++ sum = p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ ++ write_reg32(adev, IO_ACX_SLV_END_CTL, 0); ++ ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */ ++#else ++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */ ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */ ++#endif ++ ++ len = 0; ++ size = le32_to_cpu(fw_image->size) & (~3); ++ ++ while (likely(len < size)) { ++ v32 = be32_to_cpu(*(u32*)p); ++ p += 4; ++ len += 4; ++ ++#if NO_AUTO_INCREMENT ++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4); ++#endif ++ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA); ++ ++ if (unlikely(w32 != v32)) { ++ printk("acx: FATAL: firmware upload: " ++ "data parts at offset %d don't match (0x%08X vs. 0x%08X)! " ++ "I/O timing issues or defective memory, with DWL-xx0+? " ++ "ACX_IO_WIDTH=16 may help. Please report\n", ++ len, v32, w32); ++ result = NOT_OK; ++ break; ++ } ++ ++ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24); ++ } ++ ++ /* sum control verification */ ++ if (result != NOT_OK) { ++ if (sum != le32_to_cpu(fw_image->chksum)) { ++ printk("acx: FATAL: firmware upload: " ++ "checksums don't match!\n"); ++ result = NOT_OK; ++ } ++ } ++ ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_upload_fw ++** ++** Called from acx_reset_dev ++*/ ++static int ++acxpci_s_upload_fw(acx_device_t *adev) ++{ ++ firmware_image_t *fw_image = NULL; ++ int res = NOT_OK; ++ int try; ++ u32 file_size; ++ char filename[sizeof("tiacx1NNcNN")]; ++ ++ FN_ENTER; ++ ++ /* print exact chipset and radio ID to make sure people really get a clue on which files exactly they are supposed to provide, ++ * since firmware loading is the biggest enduser PITA with these chipsets. ++ * Not printing radio ID in 0xHEX in order to not confuse them into wrong file naming */ ++ printk( "acx: need to load firmware for acx1%02d chipset with radio ID %02x, please provide via firmware hotplug:\n" ++ "acx: either one file only (<c>ombined firmware image file, radio-specific) or two files (radio-less base image file *plus* separate <r>adio-specific extension file)\n", ++ IS_ACX111(adev)*11, adev->radio_type); ++ ++ /* Try combined, then main image */ ++ adev->need_radio_fw = 0; ++ snprintf(filename, sizeof(filename), "tiacx1%02dc%02X", ++ IS_ACX111(adev)*11, adev->radio_type); ++ ++ fw_image = acx_s_read_fw(&adev->pdev->dev, filename, &file_size); ++ if (!fw_image) { ++ adev->need_radio_fw = 1; ++ filename[sizeof("tiacx1NN")-1] = '\0'; ++ fw_image = acx_s_read_fw(&adev->pdev->dev, filename, &file_size); ++ if (!fw_image) { ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++ } ++ } ++ ++ for (try = 1; try <= 5; try++) { ++ res = acxpci_s_write_fw(adev, fw_image, 0); ++ log(L_DEBUG|L_INIT, "acx_write_fw (main/combined): %d\n", res); ++ if (OK == res) { ++ res = acxpci_s_validate_fw(adev, fw_image, 0); ++ log(L_DEBUG|L_INIT, "acx_validate_fw " ++ "(main/combined): %d\n", res); ++ } ++ ++ if (OK == res) { ++ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED); ++ break; ++ } ++ printk("acx: firmware upload attempt #%d FAILED, " ++ "retrying...\n", try); ++ acx_s_msleep(1000); /* better wait for a while... */ ++ } ++ ++ vfree(fw_image); ++ ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_upload_radio ++** ++** Uploads the appropriate radio module firmware into the card. ++*/ ++int ++acxpci_s_upload_radio(acx_device_t *adev) ++{ ++ acx_ie_memmap_t mm; ++ firmware_image_t *radio_image; ++ acx_cmd_radioinit_t radioinit; ++ int res = NOT_OK; ++ int try; ++ u32 offset; ++ u32 size; ++ char filename[sizeof("tiacx1NNrNN")]; ++ ++ if (!adev->need_radio_fw) return OK; ++ ++ FN_ENTER; ++ ++ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP); ++ offset = le32_to_cpu(mm.CodeEnd); ++ ++ snprintf(filename, sizeof(filename), "tiacx1%02dr%02X", ++ IS_ACX111(adev)*11, ++ adev->radio_type); ++ radio_image = acx_s_read_fw(&adev->pdev->dev, filename, &size); ++ if (!radio_image) { ++ printk("acx: can't load radio module '%s'\n", filename); ++ goto fail; ++ } ++ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0); ++ ++ for (try = 1; try <= 5; try++) { ++ res = acxpci_s_write_fw(adev, radio_image, offset); ++ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res); ++ if (OK == res) { ++ res = acxpci_s_validate_fw(adev, radio_image, offset); ++ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res); ++ } ++ ++ if (OK == res) ++ break; ++ printk("acx: radio firmware upload attempt #%d FAILED, " ++ "retrying...\n", try); ++ acx_s_msleep(1000); /* better wait for a while... */ ++ } ++ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0); ++ radioinit.offset = cpu_to_le32(offset); ++ /* no endian conversion needed, remains in card CPU area: */ ++ radioinit.len = radio_image->size; ++ ++ vfree(radio_image); ++ ++ if (OK != res) ++ goto fail; ++ ++ /* will take a moment so let's have a big timeout */ ++ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT, ++ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000)); ++ ++ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP); ++fail: ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acxpci_l_reset_mac ++** ++** MAC will be reset ++** Call context: reset_dev ++*/ ++static void ++acxpci_l_reset_mac(acx_device_t *adev) ++{ ++ u16 temp; ++ ++ FN_ENTER; ++ ++ /* halt eCPU */ ++ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1; ++ write_reg16(adev, IO_ACX_ECPU_CTRL, temp); ++ ++ /* now do soft reset of eCPU, set bit */ ++ temp = read_reg16(adev, IO_ACX_SOFT_RESET) | 0x1; ++ log(L_DEBUG, "%s: enable soft reset...\n", __func__); ++ write_reg16(adev, IO_ACX_SOFT_RESET, temp); ++ write_flush(adev); ++ ++ /* now clear bit again: deassert eCPU reset */ ++ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__); ++ write_reg16(adev, IO_ACX_SOFT_RESET, temp & ~0x1); ++ ++ /* now start a burst read from initial EEPROM */ ++ temp = read_reg16(adev, IO_ACX_EE_START) | 0x1; ++ write_reg16(adev, IO_ACX_EE_START, temp); ++ write_flush(adev); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_verify_init ++*/ ++static int ++acxpci_s_verify_init(acx_device_t *adev) ++{ ++ int result = NOT_OK; ++ unsigned long timeout; ++ ++ FN_ENTER; ++ ++ timeout = jiffies + 2*HZ; ++ for (;;) { ++ u16 irqstat = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES); ++ if (irqstat & HOST_INT_FCS_THRESHOLD) { ++ result = OK; ++ write_reg16(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD); ++ break; ++ } ++ if (time_after(jiffies, timeout)) ++ break; ++ /* Init may take up to ~0.5 sec total */ ++ acx_s_msleep(50); ++ } ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** A few low-level helpers ++** ++** Note: these functions are not protected by lock ++** and thus are never allowed to be called from IRQ. ++** Also they must not race with fw upload which uses same hw regs ++*/ ++ ++/*********************************************************************** ++** acxpci_write_cmd_type_status ++*/ ++ ++static inline void ++acxpci_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status) ++{ ++ writel(type | (status << 16), adev->cmd_area); ++ write_flush(adev); ++} ++ ++ ++/*********************************************************************** ++** acxpci_read_cmd_type_status ++*/ ++static u32 ++acxpci_read_cmd_type_status(acx_device_t *adev) ++{ ++ u32 cmd_type, cmd_status; ++ ++ cmd_type = readl(adev->cmd_area); ++ cmd_status = (cmd_type >> 16); ++ cmd_type = (u16)cmd_type; ++ ++ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n", ++ cmd_type, cmd_status, ++ acx_cmd_status_str(cmd_status)); ++ ++ return cmd_status; ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_reset_dev ++** ++** Arguments: ++** netdevice that contains the adev variable ++** Returns: ++** NOT_OK on fail ++** OK on success ++** Side effects: ++** device is hard reset ++** Call context: ++** acxpci_e_probe ++** Comment: ++** This resets the device using low level hardware calls ++** as well as uploads and verifies the firmware to the card ++*/ ++ ++static inline void ++init_mboxes(acx_device_t *adev) ++{ ++ u32 cmd_offs, info_offs; ++ ++ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS); ++ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS); ++ adev->cmd_area = (u8 *)adev->iobase2 + cmd_offs; ++ adev->info_area = (u8 *)adev->iobase2 + info_offs; ++ log(L_DEBUG, "iobase2=%p\n" ++ "cmd_mbox_offset=%X cmd_area=%p\n" ++ "info_mbox_offset=%X info_area=%p\n", ++ adev->iobase2, ++ cmd_offs, adev->cmd_area, ++ info_offs, adev->info_area); ++} ++ ++ ++static inline void ++read_eeprom_area(acx_device_t *adev) ++{ ++#if ACX_DEBUG > 1 ++ int offs; ++ u8 tmp; ++ ++ for (offs = 0x8c; offs < 0xb9; offs++) ++ acxpci_read_eeprom_byte(adev, offs, &tmp); ++#endif ++} ++ ++ ++static int ++acxpci_s_reset_dev(acx_device_t *adev) ++{ ++ const char* msg = ""; ++ unsigned long flags; ++ int result = NOT_OK; ++ u16 hardware_info; ++ u16 ecpu_ctrl; ++ int count; ++ ++ FN_ENTER; ++ ++ /* reset the device to make sure the eCPU is stopped ++ * to upload the firmware correctly */ ++ ++ acx_lock(adev, flags); ++ ++ acxpci_l_reset_mac(adev); ++ ++ ecpu_ctrl = read_reg16(adev, IO_ACX_ECPU_CTRL) & 1; ++ if (!ecpu_ctrl) { ++ msg = "eCPU is already running. "; ++ goto end_unlock; ++ } ++ ++#ifdef WE_DONT_NEED_THAT_DO_WE ++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) { ++ /* eCPU most likely means "embedded CPU" */ ++ msg = "eCPU did not start after boot from flash. "; ++ goto end_unlock; ++ } ++ ++ /* check sense on reset flags */ ++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) { ++ printk("%s: eCPU did not start after boot (SOR), " ++ "is this fatal?\n", adev->ndev->name); ++ } ++#endif ++ /* scan, if any, is stopped now, setting corresponding IRQ bit */ ++ adev->irq_status |= HOST_INT_SCAN_COMPLETE; ++ ++ acx_unlock(adev, flags); ++ ++ /* need to know radio type before fw load */ ++ /* Need to wait for arrival of this information in a loop, ++ * most probably since eCPU runs some init code from EEPROM ++ * (started burst read in reset_mac()) which also ++ * sets the radio type ID */ ++ ++ count = 0xffff; ++ do { ++ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION); ++ if (!--count) { ++ msg = "eCPU didn't indicate radio type"; ++ goto end_fail; ++ } ++ cpu_relax(); ++ } while (!(hardware_info & 0xff00)); /* radio type still zero? */ ++ ++ /* printk("DEBUG: count %d\n", count); */ ++ adev->form_factor = hardware_info & 0xff; ++ adev->radio_type = hardware_info >> 8; ++ ++ /* load the firmware */ ++ if (OK != acxpci_s_upload_fw(adev)) ++ goto end_fail; ++ ++ /* acx_s_msleep(10); this one really shouldn't be required */ ++ ++ /* now start eCPU by clearing bit */ ++ write_reg16(adev, IO_ACX_ECPU_CTRL, ecpu_ctrl & ~0x1); ++ log(L_DEBUG, "booted eCPU up and waiting for completion...\n"); ++ ++ /* wait for eCPU bootup */ ++ if (OK != acxpci_s_verify_init(adev)) { ++ msg = "timeout waiting for eCPU. "; ++ goto end_fail; ++ } ++ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n"); ++ ++ init_mboxes(adev); ++ acxpci_write_cmd_type_status(adev, 0, 0); ++ ++ /* test that EEPROM is readable */ ++ read_eeprom_area(adev); ++ ++ result = OK; ++ goto end; ++ ++/* Finish error message. Indicate which function failed */ ++end_unlock: ++ acx_unlock(adev, flags); ++end_fail: ++ printk("acx: %sreset_dev() FAILED\n", msg); ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_issue_cmd_timeo ++** ++** Sends command to fw, extract result ++** ++** NB: we do _not_ take lock inside, so be sure to not touch anything ++** which may interfere with IRQ handler operation ++** ++** TODO: busy wait is a bit silly, so: ++** 1) stop doing many iters - go to sleep after first ++** 2) go to waitqueue based approach: wait, not poll! ++*/ ++#undef FUNC ++#define FUNC "issue_cmd" ++ ++#if !ACX_DEBUG ++int ++acxpci_s_issue_cmd_timeo( ++ acx_device_t *adev, ++ unsigned int cmd, ++ void *buffer, ++ unsigned buflen, ++ unsigned cmd_timeout) ++{ ++#else ++int ++acxpci_s_issue_cmd_timeo_debug( ++ acx_device_t *adev, ++ unsigned cmd, ++ void *buffer, ++ unsigned buflen, ++ unsigned cmd_timeout, ++ const char* cmdstr) ++{ ++ unsigned long start = jiffies; ++#endif ++ const char *devname; ++ unsigned counter; ++ u16 irqtype; ++ u16 cmd_status; ++ unsigned long timeout; ++ ++ FN_ENTER; ++ ++ devname = adev->ndev->name; ++ if (!devname || !devname[0] || devname[4]=='%') ++ devname = "acx"; ++ ++ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n", ++ cmdstr, buflen, cmd_timeout, ++ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1); ++ ++ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) { ++ printk("%s: "FUNC"(): firmware is not loaded yet, " ++ "cannot execute commands!\n", devname); ++ goto bad; ++ } ++ ++ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) { ++ printk("input buffer (len=%u):\n", buflen); ++ acx_dump_bytes(buffer, buflen); ++ } ++ ++ /* wait for firmware to become idle for our command submission */ ++ timeout = HZ/5; ++ counter = (timeout * 1000 / HZ) - 1; /* in ms */ ++ timeout += jiffies; ++ do { ++ cmd_status = acxpci_read_cmd_type_status(adev); ++ /* Test for IDLE state */ ++ if (!cmd_status) ++ break; ++ if (counter % 8 == 0) { ++ if (time_after(jiffies, timeout)) { ++ counter = 0; ++ break; ++ } ++ /* we waited 8 iterations, no luck. Sleep 8 ms */ ++ acx_s_msleep(8); ++ } ++ } while (likely(--counter)); ++ ++ if (!counter) { ++ /* the card doesn't get idle, we're in trouble */ ++ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n", ++ devname, cmd_status); ++ goto bad; ++ } else if (counter < 190) { /* if waited >10ms... */ ++ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. " ++ "Please report\n", 199 - counter); ++ } ++ ++ /* now write the parameters of the command if needed */ ++ if (buffer && buflen) { ++ /* if it's an INTERROGATE command, just pass the length ++ * of parameters to read, as data */ ++#if CMD_DISCOVERY ++ if (cmd == ACX1xx_CMD_INTERROGATE) ++ memset_io(adev->cmd_area + 4, 0xAA, buflen); ++#endif ++ /* adev->cmd_area points to PCI device's memory, not to RAM! */ ++ memcpy_toio(adev->cmd_area + 4, buffer, ++ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen); ++ } ++ /* now write the actual command type */ ++ acxpci_write_cmd_type_status(adev, cmd, 0); ++ /* execute command */ ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD); ++ write_flush(adev); ++ ++ /* wait for firmware to process command */ ++ ++ /* Ensure nonzero and not too large timeout. ++ ** Also converts e.g. 100->99, 200->199 ++ ** which is nice but not essential */ ++ cmd_timeout = (cmd_timeout-1) | 1; ++ if (unlikely(cmd_timeout > 1199)) ++ cmd_timeout = 1199; ++ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */ ++ adev->irq_status &= ~HOST_INT_CMD_COMPLETE; ++ ++ /* we schedule away sometimes (timeout can be large) */ ++ counter = cmd_timeout; ++ timeout = jiffies + cmd_timeout * HZ / 1000; ++ do { ++ if (!adev->irqs_active) { /* IRQ disabled: poll */ ++ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES); ++ if (irqtype & HOST_INT_CMD_COMPLETE) { ++ write_reg16(adev, IO_ACX_IRQ_ACK, ++ HOST_INT_CMD_COMPLETE); ++ break; ++ } ++ } else { /* Wait when IRQ will set the bit */ ++ irqtype = adev->irq_status; ++ if (irqtype & HOST_INT_CMD_COMPLETE) ++ break; ++ } ++ ++ if (counter % 8 == 0) { ++ if (time_after(jiffies, timeout)) { ++ counter = 0; ++ break; ++ } ++ /* we waited 8 iterations, no luck. Sleep 8 ms */ ++ acx_s_msleep(8); ++ } ++ } while (likely(--counter)); ++ ++ /* save state for debugging */ ++ cmd_status = acxpci_read_cmd_type_status(adev); ++ ++ /* put the card in IDLE state */ ++ acxpci_write_cmd_type_status(adev, 0, 0); ++ ++ if (!counter) { /* timed out! */ ++ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. " ++ "irq bits:0x%04X irq_status:0x%04X timeout:%dms " ++ "cmd_status:%d (%s)\n", ++ devname, (adev->irqs_active) ? "waiting" : "polling", ++ irqtype, adev->irq_status, cmd_timeout, ++ cmd_status, acx_cmd_status_str(cmd_status)); ++ goto bad; ++ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */ ++ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. " ++ "count:%d. Please report\n", ++ (adev->irqs_active) ? "waited" : "polled", ++ cmd_timeout - counter, counter); ++ } ++ ++ if (1 != cmd_status) { /* it is not a 'Success' */ ++ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). " ++ "Took %dms of %d\n", ++ devname, cmd_status, acx_cmd_status_str(cmd_status), ++ cmd_timeout - counter, cmd_timeout); ++ /* zero out result buffer ++ * WARNING: this will trash stack in case of illegally large input ++ * length! */ ++ if (buffer && buflen) ++ memset(buffer, 0, buflen); ++ goto bad; ++ } ++ ++ /* read in result parameters if needed */ ++ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) { ++ /* adev->cmd_area points to PCI device's memory, not to RAM! */ ++ memcpy_fromio(buffer, adev->cmd_area + 4, buflen); ++ if (acx_debug & L_DEBUG) { ++ printk("output buffer (len=%u): ", buflen); ++ acx_dump_bytes(buffer, buflen); ++ } ++ } ++/* ok: */ ++ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n", ++ cmdstr, jiffies - start); ++ FN_EXIT1(OK); ++ return OK; ++ ++bad: ++ /* Give enough info so that callers can avoid ++ ** printing their own diagnostic messages */ ++#if ACX_DEBUG ++ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr); ++#else ++ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd); ++#endif ++ dump_stack(); ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++#ifdef NONESSENTIAL_FEATURES ++typedef struct device_id { ++ unsigned char id[6]; ++ char *descr; ++ char *type; ++} device_id_t; ++ ++static const device_id_t ++device_ids[] = ++{ ++ { ++ {'G', 'l', 'o', 'b', 'a', 'l'}, ++ NULL, ++ NULL, ++ }, ++ { ++ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, ++ "uninitialized", ++ "SpeedStream SS1021 or Gigafast WF721-AEX" ++ }, ++ { ++ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85}, ++ "non-standard", ++ "DrayTek Vigor 520" ++ }, ++ { ++ {'?', '?', '?', '?', '?', '?'}, ++ "non-standard", ++ "Level One WPC-0200" ++ }, ++ { ++ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, ++ "empty", ++ "DWL-650+ variant" ++ } ++}; ++ ++static void ++acx_show_card_eeprom_id(acx_device_t *adev) ++{ ++ unsigned char buffer[CARD_EEPROM_ID_SIZE]; ++ int i; ++ ++ memset(&buffer, 0, CARD_EEPROM_ID_SIZE); ++ /* use direct EEPROM access */ ++ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) { ++ if (OK != acxpci_read_eeprom_byte(adev, ++ ACX100_EEPROM_ID_OFFSET + i, ++ &buffer[i])) { ++ printk("acx: reading EEPROM FAILED\n"); ++ break; ++ } ++ } ++ ++ for (i = 0; i < VEC_SIZE(device_ids); i++) { ++ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) { ++ if (device_ids[i].descr) { ++ printk("acx: EEPROM card ID string check " ++ "found %s card ID: is this %s?\n", ++ device_ids[i].descr, device_ids[i].type); ++ } ++ break; ++ } ++ } ++ if (i == VEC_SIZE(device_ids)) { ++ printk("acx: EEPROM card ID string check found " ++ "unknown card: expected 'Global', got '%.*s\'. " ++ "Please report\n", CARD_EEPROM_ID_SIZE, buffer); ++ } ++} ++#endif /* NONESSENTIAL_FEATURES */ ++ ++ ++/*********************************************************************** ++** acxpci_free_desc_queues ++** ++** Releases the queues that have been allocated, the ++** others have been initialised to NULL so this ++** function can be used if only part of the queues were allocated. ++*/ ++ ++static inline void ++free_coherent(struct pci_dev *hwdev, size_t size, ++ void *vaddr, dma_addr_t dma_handle) ++{ ++ dma_free_coherent(hwdev == NULL ? NULL : &hwdev->dev, ++ size, vaddr, dma_handle); ++} ++ ++void ++acxpci_free_desc_queues(acx_device_t *adev) ++{ ++#define ACX_FREE_QUEUE(size, ptr, phyaddr) \ ++ if (ptr) { \ ++ free_coherent(0, size, ptr, phyaddr); \ ++ ptr = NULL; \ ++ size = 0; \ ++ } ++ ++ FN_ENTER; ++ ++ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy); ++ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy); ++ ++ adev->txdesc_start = NULL; ++ ++ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy); ++ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy); ++ ++ adev->rxdesc_start = NULL; ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_delete_dma_regions ++*/ ++static void ++acxpci_s_delete_dma_regions(acx_device_t *adev) ++{ ++ unsigned long flags; ++ ++ FN_ENTER; ++ /* disable radio Tx/Rx. Shouldn't we use the firmware commands ++ * here instead? Or are we that much down the road that it's no ++ * longer possible here? */ ++ write_reg16(adev, IO_ACX_ENABLE, 0); ++ ++ acx_s_msleep(100); ++ ++ acx_lock(adev, flags); ++ acxpci_free_desc_queues(adev); ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_e_probe ++** ++** Probe routine called when a PCI device w/ matching ID is found. ++** Here's the sequence: ++** - Allocate the PCI resources. ++** - Read the PCMCIA attribute memory to make sure we have a WLAN card ++** - Reset the MAC ++** - Initialize the dev and wlan data ++** - Initialize the MAC ++** ++** pdev - ptr to pci device structure containing info about pci configuration ++** id - ptr to the device id entry that matched this device ++*/ ++static const u16 ++IO_ACX100[] = ++{ ++ 0x0000, /* IO_ACX_SOFT_RESET */ ++ ++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */ ++ 0x0018, /* IO_ACX_SLV_MEM_DATA */ ++ 0x001c, /* IO_ACX_SLV_MEM_CTL */ ++ 0x0020, /* IO_ACX_SLV_END_CTL */ ++ ++ 0x0034, /* IO_ACX_FEMR */ ++ ++ 0x007c, /* IO_ACX_INT_TRIG */ ++ 0x0098, /* IO_ACX_IRQ_MASK */ ++ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */ ++ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */ ++ 0x00ac, /* IO_ACX_IRQ_ACK */ ++ 0x00b0, /* IO_ACX_HINT_TRIG */ ++ ++ 0x0104, /* IO_ACX_ENABLE */ ++ ++ 0x0250, /* IO_ACX_EEPROM_CTL */ ++ 0x0254, /* IO_ACX_EEPROM_ADDR */ ++ 0x0258, /* IO_ACX_EEPROM_DATA */ ++ 0x025c, /* IO_ACX_EEPROM_CFG */ ++ ++ 0x0268, /* IO_ACX_PHY_ADDR */ ++ 0x026c, /* IO_ACX_PHY_DATA */ ++ 0x0270, /* IO_ACX_PHY_CTL */ ++ ++ 0x0290, /* IO_ACX_GPIO_OE */ ++ ++ 0x0298, /* IO_ACX_GPIO_OUT */ ++ ++ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */ ++ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */ ++ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */ ++ ++ 0x02d0, /* IO_ACX_EE_START */ ++ 0x02d4, /* IO_ACX_SOR_CFG */ ++ 0x02d8 /* IO_ACX_ECPU_CTRL */ ++}; ++ ++static const u16 ++IO_ACX111[] = ++{ ++ 0x0000, /* IO_ACX_SOFT_RESET */ ++ ++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */ ++ 0x0018, /* IO_ACX_SLV_MEM_DATA */ ++ 0x001c, /* IO_ACX_SLV_MEM_CTL */ ++ 0x0020, /* IO_ACX_SLV_END_CTL */ ++ ++ 0x0034, /* IO_ACX_FEMR */ ++ ++ 0x00b4, /* IO_ACX_INT_TRIG */ ++ 0x00d4, /* IO_ACX_IRQ_MASK */ ++ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */ ++ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */ ++ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */ ++ 0x00e8, /* IO_ACX_IRQ_ACK */ ++ 0x00ec, /* IO_ACX_HINT_TRIG */ ++ ++ 0x01d0, /* IO_ACX_ENABLE */ ++ ++ 0x0338, /* IO_ACX_EEPROM_CTL */ ++ 0x033c, /* IO_ACX_EEPROM_ADDR */ ++ 0x0340, /* IO_ACX_EEPROM_DATA */ ++ 0x0344, /* IO_ACX_EEPROM_CFG */ ++ ++ 0x0350, /* IO_ACX_PHY_ADDR */ ++ 0x0354, /* IO_ACX_PHY_DATA */ ++ 0x0358, /* IO_ACX_PHY_CTL */ ++ ++ 0x0374, /* IO_ACX_GPIO_OE */ ++ ++ 0x037c, /* IO_ACX_GPIO_OUT */ ++ ++ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */ ++ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */ ++ 0x0390, /* IO_ACX_EEPROM_INFORMATION */ ++ ++ 0x0100, /* IO_ACX_EE_START */ ++ 0x0104, /* IO_ACX_SOR_CFG */ ++ 0x0108, /* IO_ACX_ECPU_CTRL */ ++}; ++ ++static void ++dummy_netdev_init(struct net_device *ndev) {} ++ ++static int __devinit ++acxpci_e_probe(struct pci_dev *pdev, const struct pci_device_id *id) ++{ ++ acx111_ie_configoption_t co; ++ unsigned long mem_region1 = 0; ++ unsigned long mem_region2 = 0; ++ unsigned long mem_region1_size; ++ unsigned long mem_region2_size; ++ unsigned long phymem1; ++ unsigned long phymem2; ++ void *mem1 = NULL; ++ void *mem2 = NULL; ++ acx_device_t *adev = NULL; ++ struct net_device *ndev = NULL; ++ const char *chip_name; ++ int result = -EIO; ++ int err; ++ u8 chip_type; ++ ++ FN_ENTER; ++ ++ /* Enable the PCI device */ ++ if (pci_enable_device(pdev)) { ++ printk("acx: pci_enable_device() FAILED\n"); ++ result = -ENODEV; ++ goto fail_pci_enable_device; ++ } ++ ++ /* enable busmastering (required for CardBus) */ ++ pci_set_master(pdev); ++ ++ /* FIXME: prism54 calls pci_set_mwi() here, ++ * should we do/support the same? */ ++ ++ /* chiptype is u8 but id->driver_data is ulong ++ ** Works for now (possible values are 1 and 2) */ ++ chip_type = (u8)id->driver_data; ++ /* acx100 and acx111 have different PCI memory regions */ ++ if (chip_type == CHIPTYPE_ACX100) { ++ chip_name = "ACX100"; ++ mem_region1 = PCI_ACX100_REGION1; ++ mem_region1_size = PCI_ACX100_REGION1_SIZE; ++ ++ mem_region2 = PCI_ACX100_REGION2; ++ mem_region2_size = PCI_ACX100_REGION2_SIZE; ++ } else if (chip_type == CHIPTYPE_ACX111) { ++ chip_name = "ACX111"; ++ mem_region1 = PCI_ACX111_REGION1; ++ mem_region1_size = PCI_ACX111_REGION1_SIZE; ++ ++ mem_region2 = PCI_ACX111_REGION2; ++ mem_region2_size = PCI_ACX111_REGION2_SIZE; ++ } else { ++ printk("acx: unknown chip type 0x%04X\n", chip_type); ++ goto fail_unknown_chiptype; ++ } ++ ++ /* Figure out our resources */ ++ phymem1 = pci_resource_start(pdev, mem_region1); ++ phymem2 = pci_resource_start(pdev, mem_region2); ++ if (!request_mem_region(phymem1, pci_resource_len(pdev, mem_region1), "acx_1")) { ++ printk("acx: cannot reserve PCI memory region 1 (are you sure " ++ "you have CardBus support in kernel?)\n"); ++ goto fail_request_mem_region1; ++ } ++ if (!request_mem_region(phymem2, pci_resource_len(pdev, mem_region2), "acx_2")) { ++ printk("acx: cannot reserve PCI memory region 2\n"); ++ goto fail_request_mem_region2; ++ } ++ ++ /* this used to be ioremap(), but ioremap_nocache() ++ * is much less risky, right? (and slower?) ++ * FIXME: we may want to go back to cached variant if it's ++ * certain that our code really properly handles ++ * cached operation (memory barriers, volatile?, ...) ++ * (but always keep this comment here regardless!) ++ * Possibly make this a driver config setting? */ ++ ++ mem1 = ioremap_nocache(phymem1, mem_region1_size); ++ if (!mem1) { ++ printk("acx: ioremap() FAILED\n"); ++ goto fail_ioremap1; ++ } ++ mem2 = ioremap_nocache(phymem2, mem_region2_size); ++ if (!mem2) { ++ printk("acx: ioremap() #2 FAILED\n"); ++ goto fail_ioremap2; ++ } ++ ++ printk("acx: found %s-based wireless network card at %s, irq:%d, " ++ "phymem1:0x%lX, phymem2:0x%lX, mem1:0x%p, mem1_size:%ld, " ++ "mem2:0x%p, mem2_size:%ld\n", ++ chip_name, pci_name(pdev), pdev->irq, phymem1, phymem2, ++ mem1, mem_region1_size, ++ mem2, mem_region2_size); ++ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug); ++ ++ if (0 == pdev->irq) { ++ printk("acx: can't use IRQ 0\n"); ++ goto fail_irq; ++ } ++ ++ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init); ++ /* (NB: memsets to 0 entire area) */ ++ if (!ndev) { ++ printk("acx: no memory for netdevice struct\n"); ++ goto fail_alloc_netdev; ++ } ++ ++ ether_setup(ndev); ++ ndev->open = &acxpci_e_open; ++ ndev->stop = &acxpci_e_close; ++ ndev->hard_start_xmit = &acx_i_start_xmit; ++ ndev->get_stats = &acx_e_get_stats; ++#if IW_HANDLER_VERSION <= 5 ++ ndev->get_wireless_stats = &acx_e_get_wireless_stats; ++#endif ++ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def; ++ ndev->set_multicast_list = &acxpci_i_set_multicast_list; ++ ndev->tx_timeout = &acxpci_i_tx_timeout; ++ ndev->change_mtu = &acx_e_change_mtu; ++ ndev->watchdog_timeo = 4 * HZ; ++ ndev->irq = pdev->irq; ++ ndev->base_addr = pci_resource_start(pdev, 0); ++ ++ adev = ndev2adev(ndev); ++ spin_lock_init(&adev->lock); /* initial state: unlocked */ ++ /* We do not start with downed sem: we want PARANOID_LOCKING to work */ ++ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */ ++ /* since nobody can see new netdev yet, we can as well ++ ** just _presume_ that we're under sem (instead of actually taking it): */ ++ /* acx_sem_lock(adev); */ ++ adev->pdev = pdev; ++ adev->ndev = ndev; ++ adev->dev_type = DEVTYPE_PCI; ++ adev->chip_type = chip_type; ++ adev->chip_name = chip_name; ++ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111; ++ adev->membase = phymem1; ++ adev->iobase = mem1; ++ adev->membase2 = phymem2; ++ adev->iobase2 = mem2; ++ /* to find crashes due to weird driver access ++ * to unconfigured interface (ifup) */ ++ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead; ++ ++#ifdef NONESSENTIAL_FEATURES ++ acx_show_card_eeprom_id(adev); ++#endif /* NONESSENTIAL_FEATURES */ ++ ++#ifdef SET_MODULE_OWNER ++ SET_MODULE_OWNER(ndev); ++#endif ++ SET_NETDEV_DEV(ndev, &pdev->dev); ++ ++ log(L_IRQ|L_INIT, "using IRQ %d\n", pdev->irq); ++ ++ /* need to be able to restore PCI state after a suspend */ ++ pci_save_state(pdev); ++ pci_set_drvdata(pdev, ndev); ++ ++ /* ok, pci setup is finished, now start initializing the card */ ++ ++ /* NB: read_reg() reads may return bogus data before reset_dev(), ++ * since the firmware which directly controls large parts of the I/O ++ * registers isn't initialized yet. ++ * acx100 seems to be more affected than acx111 */ ++ if (OK != acxpci_s_reset_dev(adev)) ++ goto fail_reset; ++ ++ if (IS_ACX100(adev)) { ++ /* ACX100: configopt struct in cmd mailbox - directly after reset */ ++ memcpy_fromio(&co, adev->cmd_area, sizeof(co)); ++ } ++ ++ if (OK != acx_s_init_mac(adev)) ++ goto fail_init_mac; ++ ++ if (IS_ACX111(adev)) { ++ /* ACX111: configopt struct needs to be queried after full init */ ++ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS); ++ } ++ ++/* TODO: merge them into one function, they are called just once and are the same for pci & usb */ ++ if (OK != acxpci_read_eeprom_byte(adev, 0x05, &adev->eeprom_version)) ++ goto fail_read_eeprom_version; ++ ++ acx_s_parse_configoption(adev, &co); ++ acx_s_set_defaults(adev); ++ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */ ++ acx_display_hardware_details(adev); ++ ++ /* Register the card, AFTER everything else has been set up, ++ * since otherwise an ioctl could step on our feet due to ++ * firmware operations happening in parallel or uninitialized data */ ++ err = register_netdev(ndev); ++ if (OK != err) { ++ printk("acx: register_netdev() FAILED: %d\n", err); ++ goto fail_register_netdev; ++ } ++ ++ acx_proc_register_entries(ndev); ++ ++ /* Now we have our device, so make sure the kernel doesn't try ++ * to send packets even though we're not associated to a network yet */ ++ acx_stop_queue(ndev, "on probe"); ++ acx_carrier_off(ndev, "on probe"); ++ ++ /* after register_netdev() userspace may start working with dev ++ * (in particular, on other CPUs), we only need to up the sem */ ++ /* acx_sem_unlock(adev); */ ++ ++ printk("acx "ACX_RELEASE": net device %s, driver compiled " ++ "against wireless extensions %d and Linux %s\n", ++ ndev->name, WIRELESS_EXT, UTS_RELEASE); ++ ++#if CMD_DISCOVERY ++ great_inquisitor(adev); ++#endif ++ ++ result = OK; ++ goto done; ++ ++ /* error paths: undo everything in reverse order... */ ++ ++fail_register_netdev: ++ ++ acxpci_s_delete_dma_regions(adev); ++ pci_set_drvdata(pdev, NULL); ++ ++fail_init_mac: ++fail_read_eeprom_version: ++fail_reset: ++ ++ free_netdev(ndev); ++fail_alloc_netdev: ++fail_irq: ++ ++ iounmap(mem2); ++fail_ioremap2: ++ ++ iounmap(mem1); ++fail_ioremap1: ++ ++ release_mem_region(pci_resource_start(pdev, mem_region2), ++ pci_resource_len(pdev, mem_region2)); ++fail_request_mem_region2: ++ ++ release_mem_region(pci_resource_start(pdev, mem_region1), ++ pci_resource_len(pdev, mem_region1)); ++fail_request_mem_region1: ++fail_unknown_chiptype: ++ ++ pci_disable_device(pdev); ++fail_pci_enable_device: ++ ++ pci_set_power_state(pdev, PCI_D3hot); ++ ++done: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxpci_e_remove ++** ++** Shut device down (if not hot unplugged) ++** and deallocate PCI resources for the acx chip. ++** ++** pdev - ptr to PCI device structure containing info about pci configuration ++*/ ++static void __devexit ++acxpci_e_remove(struct pci_dev *pdev) ++{ ++ struct net_device *ndev; ++ acx_device_t *adev; ++ unsigned long mem_region1, mem_region2; ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ ndev = (struct net_device*) pci_get_drvdata(pdev); ++ if (!ndev) { ++ log(L_DEBUG, "%s: card is unused. Skipping any release code\n", ++ __func__); ++ goto end; ++ } ++ ++ adev = ndev2adev(ndev); ++ ++ /* If device wasn't hot unplugged... */ ++ if (adev_present(adev)) { ++ ++ acx_sem_lock(adev); ++ ++ /* disable both Tx and Rx to shut radio down properly */ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0); ++ ++#ifdef REDUNDANT ++ /* put the eCPU to sleep to save power ++ * Halting is not possible currently, ++ * since not supported by all firmware versions */ ++ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0); ++#endif ++ acx_lock(adev, flags); ++ /* disable power LED to save power :-) */ ++ log(L_INIT, "switching off power LED to save power\n"); ++ acxpci_l_power_led(adev, 0); ++ /* stop our eCPU */ ++ if (IS_ACX111(adev)) { ++ /* FIXME: does this actually keep halting the eCPU? ++ * I don't think so... ++ */ ++ acxpci_l_reset_mac(adev); ++ } else { ++ u16 temp; ++ /* halt eCPU */ ++ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1; ++ write_reg16(adev, IO_ACX_ECPU_CTRL, temp); ++ write_flush(adev); ++ } ++ acx_unlock(adev, flags); ++ ++ acx_sem_unlock(adev); ++ } ++ ++ /* unregister the device to not let the kernel ++ * (e.g. ioctls) access a half-deconfigured device ++ * NB: this will cause acxpci_e_close() to be called, ++ * thus we shouldn't call it under sem! */ ++ log(L_INIT, "removing device %s\n", ndev->name); ++ unregister_netdev(ndev); ++ ++ /* unregister_netdev ensures that no references to us left. ++ * For paranoid reasons we continue to follow the rules */ ++ acx_sem_lock(adev); ++ ++ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) { ++ acxpci_s_down(ndev); ++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ } ++ ++ acx_proc_unregister_entries(ndev); ++ ++ if (IS_ACX100(adev)) { ++ mem_region1 = PCI_ACX100_REGION1; ++ mem_region2 = PCI_ACX100_REGION2; ++ } else { ++ mem_region1 = PCI_ACX111_REGION1; ++ mem_region2 = PCI_ACX111_REGION2; ++ } ++ ++ /* finally, clean up PCI bus state */ ++ acxpci_s_delete_dma_regions(adev); ++ if (adev->iobase) iounmap(adev->iobase); ++ if (adev->iobase2) iounmap(adev->iobase2); ++ release_mem_region(pci_resource_start(pdev, mem_region1), ++ pci_resource_len(pdev, mem_region1)); ++ release_mem_region(pci_resource_start(pdev, mem_region2), ++ pci_resource_len(pdev, mem_region2)); ++ pci_disable_device(pdev); ++ ++ /* remove dev registration */ ++ pci_set_drvdata(pdev, NULL); ++ ++ acx_sem_unlock(adev); ++ ++ /* Free netdev (quite late, ++ * since otherwise we might get caught off-guard ++ * by a netdev timeout handler execution ++ * expecting to see a working dev...) */ ++ free_netdev(ndev); ++ ++ /* put device into ACPI D3 mode (shutdown) */ ++ pci_set_power_state(pdev, PCI_D3hot); ++ ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** TODO: PM code needs to be fixed / debugged / tested. ++*/ ++#ifdef CONFIG_PM ++static int ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++acxpci_e_suspend(struct pci_dev *pdev, pm_message_t state) ++#else ++acxpci_e_suspend(struct pci_dev *pdev, u32 state) ++#endif ++{ ++ struct net_device *ndev = pci_get_drvdata(pdev); ++ acx_device_t *adev; ++ ++ FN_ENTER; ++ printk("acx: suspend handler is experimental!\n"); ++ printk("sus: dev %p\n", ndev); ++ ++ if (!netif_running(ndev)) ++ goto end; ++ ++ adev = ndev2adev(ndev); ++ printk("sus: adev %p\n", adev); ++ ++ acx_sem_lock(adev); ++ ++ netif_device_detach(ndev); /* this one cannot sleep */ ++ acxpci_s_down(ndev); ++ /* down() does not set it to 0xffff, but here we really want that */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ acxpci_s_delete_dma_regions(adev); ++ pci_save_state(pdev); ++ pci_set_power_state(pdev, PCI_D3hot); ++ ++ acx_sem_unlock(adev); ++end: ++ FN_EXIT0; ++ return OK; ++} ++ ++ ++static int ++acxpci_e_resume(struct pci_dev *pdev) ++{ ++ struct net_device *ndev = pci_get_drvdata(pdev); ++ acx_device_t *adev; ++ ++ FN_ENTER; ++ ++ printk("acx: resume handler is experimental!\n"); ++ printk("rsm: got dev %p\n", ndev); ++ ++ if (!netif_running(ndev)) ++ goto end; ++ ++ adev = ndev2adev(ndev); ++ printk("rsm: got adev %p\n", adev); ++ ++ acx_sem_lock(adev); ++ ++ pci_set_power_state(pdev, PCI_D0); ++ printk("rsm: power state PCI_D0 set\n"); ++ pci_restore_state(pdev); ++ printk("rsm: PCI state restored\n"); ++ ++ if (OK != acxpci_s_reset_dev(adev)) ++ goto end_unlock; ++ printk("rsm: device reset done\n"); ++ if (OK != acx_s_init_mac(adev)) ++ goto end_unlock; ++ printk("rsm: init MAC done\n"); ++ ++ acxpci_s_up(ndev); ++ printk("rsm: acx up done\n"); ++ ++ /* now even reload all card parameters as they were before suspend, ++ * and possibly be back in the network again already :-) */ ++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) { ++ adev->set_mask = GETSET_ALL; ++ acx_s_update_card_settings(adev); ++ printk("rsm: settings updated\n"); ++ } ++ netif_device_attach(ndev); ++ printk("rsm: device attached\n"); ++ ++end_unlock: ++ acx_sem_unlock(adev); ++end: ++ /* we need to return OK here anyway, right? */ ++ FN_EXIT0; ++ return OK; ++} ++#endif /* CONFIG_PM */ ++ ++ ++/*********************************************************************** ++** acxpci_s_up ++** ++** This function is called by acxpci_e_open (when ifconfig sets the device as up) ++** ++** Side effects: ++** - Enables on-card interrupt requests ++** - calls acx_s_start ++*/ ++ ++static void ++enable_acx_irq(acx_device_t *adev) ++{ ++ FN_ENTER; ++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask); ++ write_reg16(adev, IO_ACX_FEMR, 0x8000); ++ adev->irqs_active = 1; ++ FN_EXIT0; ++} ++ ++static void ++acxpci_s_up(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ enable_acx_irq(adev); ++ acx_unlock(adev, flags); ++ ++ /* acx fw < 1.9.3.e has a hardware timer, and older drivers ++ ** used to use it. But we don't do that anymore, our OS ++ ** has reliable software timers */ ++ init_timer(&adev->mgmt_timer); ++ adev->mgmt_timer.function = acx_i_timer; ++ adev->mgmt_timer.data = (unsigned long)adev; ++ ++ /* Need to set ACX_STATE_IFACE_UP first, or else ++ ** timer won't be started by acx_set_status() */ ++ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_2_STA: ++ /* actual scan cmd will happen in start() */ ++ acx_set_status(adev, ACX_STATUS_1_SCANNING); break; ++ case ACX_MODE_3_AP: ++ case ACX_MODE_MONITOR: ++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break; ++ } ++ ++ acx_s_start(adev); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_down ++** ++** NB: device may be already hot unplugged if called from acxpci_e_remove() ++** ++** Disables on-card interrupt request, stops softirq and timer, stops queue, ++** sets status == STOPPED ++*/ ++ ++static void ++disable_acx_irq(acx_device_t *adev) ++{ ++ FN_ENTER; ++ ++ /* I guess mask is not 0xffff because acx100 won't signal ++ ** cmd completion then (needed for ifup). ++ ** Someone with acx100 please confirm */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ adev->irqs_active = 0; ++ FN_EXIT0; ++} ++ ++static void ++acxpci_s_down(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ /* Disable IRQs first, so that IRQs cannot race with us */ ++ /* then wait until interrupts have finished executing on other CPUs */ ++ acx_lock(adev, flags); ++ disable_acx_irq(adev); ++ synchronize_irq(adev->pdev->irq); ++ acx_unlock(adev, flags); ++ ++ /* we really don't want to have an asynchronous tasklet disturb us ++ ** after something vital for its job has been shut down, so ++ ** end all remaining work now. ++ ** ++ ** NB: carrier_off (done by set_status below) would lead to ++ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK(). ++ ** That's why we do FLUSH first. ++ ** ++ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK() ++ ** waits for acx_e_after_interrupt_task to complete if it is running ++ ** on another CPU, but acx_e_after_interrupt_task ++ ** will sleep on sem forever, because it is taken by us! ++ ** Work around that by temporary sem unlock. ++ ** This will fail miserably if we'll be hit by concurrent ++ ** iwconfig or something in between. TODO! */ ++ acx_sem_unlock(adev); ++ FLUSH_SCHEDULED_WORK(); ++ acx_sem_lock(adev); ++ ++ /* This is possible: ++ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task -> ++ ** -> set_status(ASSOCIATED) -> wake_queue() ++ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK ++ ** lock/unlock is just paranoia, maybe not needed */ ++ acx_lock(adev, flags); ++ acx_stop_queue(ndev, "on ifdown"); ++ acx_set_status(adev, ACX_STATUS_0_STOPPED); ++ acx_unlock(adev, flags); ++ ++ /* kernel/timer.c says it's illegal to del_timer_sync() ++ ** a timer which restarts itself. We guarantee this cannot ++ ** ever happen because acx_i_timer() never does this if ++ ** status is ACX_STATUS_0_STOPPED */ ++ del_timer_sync(&adev->mgmt_timer); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_e_open ++** ++** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP ++** from clear to set. In other words: ifconfig up. ++** ++** Returns: ++** 0 success ++** >0 f/w reported error ++** <0 driver reported error ++*/ ++static int ++acxpci_e_open(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ int result = OK; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ acx_init_task_scheduler(adev); ++ ++/* TODO: pci_set_power_state(pdev, PCI_D0); ? */ ++ ++ /* request shared IRQ handler */ ++ if (request_irq(ndev->irq, acxpci_i_interrupt, SA_SHIRQ, ndev->name, ndev)) { ++ printk("%s: request_irq FAILED\n", ndev->name); ++ result = -EAGAIN; ++ goto done; ++ } ++ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq); ++ ++ /* ifup device */ ++ acxpci_s_up(ndev); ++ ++ /* We don't currently have to do anything else. ++ * The setup of the MAC should be subsequently completed via ++ * the mlme commands. ++ * Higher layers know we're ready from dev->start==1 and ++ * dev->tbusy==0. Our rx path knows to pass up received/ ++ * frames because of dev->flags&IFF_UP is true. ++ */ ++done: ++ acx_sem_unlock(adev); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxpci_e_close ++** ++** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP ++** from set to clear. I.e. called by "ifconfig DEV down" ++** ++** Returns: ++** 0 success ++** >0 f/w reported error ++** <0 driver reported error ++*/ ++static int ++acxpci_e_close(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ /* ifdown device */ ++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ if (netif_device_present(ndev)) { ++ acxpci_s_down(ndev); ++ } ++ ++ /* disable all IRQs, release shared IRQ handler */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ write_reg16(adev, IO_ACX_FEMR, 0x0); ++ free_irq(ndev->irq, ndev); ++ ++/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */ ++ ++ /* We currently don't have to do anything else. ++ * Higher layers know we're not ready from dev->start==0 and ++ * dev->tbusy==1. Our rx path knows to not pass up received ++ * frames because of dev->flags&IFF_UP is false. ++ */ ++ acx_sem_unlock(adev); ++ ++ log(L_INIT, "closed device\n"); ++ FN_EXIT0; ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acxpci_i_tx_timeout ++** ++** Called from network core. Must not sleep! ++*/ ++static void ++acxpci_i_tx_timeout(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ unsigned int tx_num_cleaned; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ ++ /* clean processed tx descs, they may have been completely full */ ++ tx_num_cleaned = acxpci_l_clean_txdesc(adev); ++ ++ /* nothing cleaned, yet (almost) no free buffers available? ++ * --> clean all tx descs, no matter which status!! ++ * Note that I strongly suspect that doing emergency cleaning ++ * may confuse the firmware. This is a last ditch effort to get ++ * ANYTHING to work again... ++ * ++ * TODO: it's best to simply reset & reinit hw from scratch... ++ */ ++ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) { ++ printk("%s: FAILED to free any of the many full tx buffers. " ++ "Switching to emergency freeing. " ++ "Please report!\n", ndev->name); ++ acxpci_l_clean_txdesc_emergency(adev); ++ } ++ ++ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status)) ++ acx_wake_queue(ndev, "after tx timeout"); ++ ++ /* stall may have happened due to radio drift, so recalib radio */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB); ++ ++ /* do unimportant work last */ ++ printk("%s: tx timeout!\n", ndev->name); ++ adev->stats.tx_errors++; ++ ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_i_set_multicast_list ++** FIXME: most likely needs refinement ++*/ ++static void ++acxpci_i_set_multicast_list(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ ++ /* firmwares don't have allmulti capability, ++ * so just use promiscuous mode instead in this case. */ ++ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) { ++ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS); ++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI); ++ SET_BIT(adev->set_mask, SET_RXCONFIG); ++ /* let kernel know in case *we* needed to set promiscuous */ ++ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI); ++ } else { ++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS); ++ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI); ++ SET_BIT(adev->set_mask, SET_RXCONFIG); ++ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI); ++ } ++ ++ /* cannot update card settings directly here, atomic context */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG); ++ ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxpci_l_process_rxdesc ++** ++** Called directly and only from the IRQ handler ++*/ ++ ++#if !ACX_DEBUG ++static inline void log_rxbuffer(const acx_device_t *adev) {} ++#else ++static void ++log_rxbuffer(const acx_device_t *adev) ++{ ++ register const struct rxhostdesc *rxhostdesc; ++ int i; ++ /* no FN_ENTER here, we don't want that */ ++ ++ rxhostdesc = adev->rxhostdesc_start; ++ if (unlikely(!rxhostdesc)) return; ++ for (i = 0; i < RX_CNT; i++) { ++ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN)) ++ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL))) ++ printk("rx: buf %d full\n", i); ++ rxhostdesc++; ++ } ++} ++#endif ++ ++static void ++acxpci_l_process_rxdesc(acx_device_t *adev) ++{ ++ register rxhostdesc_t *hostdesc; ++ unsigned count, tail; ++ ++ FN_ENTER; ++ ++ if (unlikely(acx_debug & L_BUFR)) ++ log_rxbuffer(adev); ++ ++ /* First, have a loop to determine the first descriptor that's ++ * full, just in case there's a mismatch between our current ++ * rx_tail and the full descriptor we're supposed to handle. */ ++ tail = adev->rx_tail; ++ count = RX_CNT; ++ while (1) { ++ hostdesc = &adev->rxhostdesc_start[tail]; ++ /* advance tail regardless of outcome of the below test */ ++ tail = (tail + 1) % RX_CNT; ++ ++ if ((hostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN)) ++ && (hostdesc->Status & cpu_to_le32(DESC_STATUS_FULL))) ++ break; /* found it! */ ++ ++ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */ ++ goto end; ++ } ++ ++ /* now process descriptors, starting with the first we figured out */ ++ while (1) { ++ log(L_BUFR, "rx: tail=%u Ctl_16=%04X Status=%08X\n", ++ tail, hostdesc->Ctl_16, hostdesc->Status); ++ ++ acx_l_process_rxbuf(adev, hostdesc->data); ++ ++ hostdesc->Status = 0; ++ /* flush all writes before adapter sees CTL_HOSTOWN change */ ++ wmb(); ++ /* Host no longer owns this, needs to be LAST */ ++ CLEAR_BIT(hostdesc->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN)); ++ ++ /* ok, descriptor is handled, now check the next descriptor */ ++ hostdesc = &adev->rxhostdesc_start[tail]; ++ ++ /* if next descriptor is empty, then bail out */ ++ if (!(hostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN)) ++ || !(hostdesc->Status & cpu_to_le32(DESC_STATUS_FULL))) ++ break; ++ ++ tail = (tail + 1) % RX_CNT; ++ } ++end: ++ adev->rx_tail = tail; ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_i_interrupt ++** ++** IRQ handler (atomic context, must not sleep, blah, blah) ++*/ ++ ++/* scan is complete. all frames now on the receive queue are valid */ ++#define INFO_SCAN_COMPLETE 0x0001 ++#define INFO_WEP_KEY_NOT_FOUND 0x0002 ++/* hw has been reset as the result of a watchdog timer timeout */ ++#define INFO_WATCH_DOG_RESET 0x0003 ++/* failed to send out NULL frame from PS mode notification to AP */ ++/* recommended action: try entering 802.11 PS mode again */ ++#define INFO_PS_FAIL 0x0004 ++/* encryption/decryption process on a packet failed */ ++#define INFO_IV_ICV_FAILURE 0x0005 ++ ++/* Info mailbox format: ++2 bytes: type ++2 bytes: status ++more bytes may follow ++ rumors say about status: ++ 0x0000 info available (set by hw) ++ 0x0001 information received (must be set by host) ++ 0x1000 info available, mailbox overflowed (messages lost) (set by hw) ++ but in practice we've seen: ++ 0x9000 when we did not set status to 0x0001 on prev message ++ 0x1001 when we did set it ++ 0x0000 was never seen ++ conclusion: this is really a bitfield: ++ 0x1000 is 'info available' bit ++ 'mailbox overflowed' bit is 0x8000, not 0x1000 ++ value of 0x0000 probably means that there are no messages at all ++ P.S. I dunno how in hell hw is supposed to notice that messages are lost - ++ it does NOT clear bit 0x0001, and this bit will probably stay forever set ++ after we set it once. Let's hope this will be fixed in firmware someday ++*/ ++ ++static void ++handle_info_irq(acx_device_t *adev) ++{ ++#if ACX_DEBUG ++ static const char * const info_type_msg[] = { ++ "(unknown)", ++ "scan complete", ++ "WEP key not found", ++ "internal watchdog reset was done", ++ "failed to send powersave (NULL frame) notification to AP", ++ "encrypt/decrypt on a packet has failed", ++ "TKIP tx keys disabled", ++ "TKIP rx keys disabled", ++ "TKIP rx: key ID not found", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "???", ++ "TKIP IV value exceeds thresh" ++ }; ++#endif ++ u32 info_type, info_status; ++ ++ info_type = readl(adev->info_area); ++ info_status = (info_type >> 16); ++ info_type = (u16)info_type; ++ ++ /* inform fw that we have read this info message */ ++ writel(info_type | 0x00010000, adev->info_area); ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK); ++ write_flush(adev); ++ ++ log(L_CTL, "info_type:%04X info_status:%04X\n", ++ info_type, info_status); ++ ++ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n", ++ info_status, info_type, ++ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ? ++ 0 : info_type] ++ ); ++} ++ ++ ++static void ++log_unusual_irq(u16 irqtype) { ++ /* ++ if (!printk_ratelimit()) ++ return; ++ */ ++ ++ printk("acx: got"); ++ if (irqtype & HOST_INT_RX_DATA) { ++ printk(" Rx_Data"); ++ } ++ /* HOST_INT_TX_COMPLETE */ ++ if (irqtype & HOST_INT_TX_XFER) { ++ printk(" Tx_Xfer"); ++ } ++ /* HOST_INT_RX_COMPLETE */ ++ if (irqtype & HOST_INT_DTIM) { ++ printk(" DTIM"); ++ } ++ if (irqtype & HOST_INT_BEACON) { ++ printk(" Beacon"); ++ } ++ if (irqtype & HOST_INT_TIMER) { ++ log(L_IRQ, " Timer"); ++ } ++ if (irqtype & HOST_INT_KEY_NOT_FOUND) { ++ printk(" Key_Not_Found"); ++ } ++ if (irqtype & HOST_INT_IV_ICV_FAILURE) { ++ printk(" IV_ICV_Failure (crypto)"); ++ } ++ /* HOST_INT_CMD_COMPLETE */ ++ /* HOST_INT_INFO */ ++ if (irqtype & HOST_INT_OVERFLOW) { ++ printk(" Overflow"); ++ } ++ if (irqtype & HOST_INT_PROCESS_ERROR) { ++ printk(" Process_Error"); ++ } ++ /* HOST_INT_SCAN_COMPLETE */ ++ if (irqtype & HOST_INT_FCS_THRESHOLD) { ++ printk(" FCS_Threshold"); ++ } ++ if (irqtype & HOST_INT_UNKNOWN) { ++ printk(" Unknown"); ++ } ++ printk(" IRQ(s)\n"); ++} ++ ++ ++static void ++update_link_quality_led(acx_device_t *adev) ++{ ++ int qual; ++ ++ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise); ++ if (qual > adev->brange_max_quality) ++ qual = adev->brange_max_quality; ++ ++ if (time_after(jiffies, adev->brange_time_last_state_change + ++ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) { ++ acxpci_l_power_led(adev, (adev->brange_last_state == 0)); ++ adev->brange_last_state ^= 1; /* toggle */ ++ adev->brange_time_last_state_change = jiffies; ++ } ++} ++ ++ ++#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */ ++ ++static irqreturn_t ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++acxpci_i_interrupt(int irq, void *dev_id) ++#else ++acxpci_i_interrupt(int irq, void *dev_id, struct pt_regs *regs) ++#endif ++{ ++ acx_device_t *adev; ++ unsigned long flags; ++ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY; ++ register u16 irqtype; ++ u16 unmasked; ++ ++ adev = ndev2adev((struct net_device*)dev_id); ++ ++ /* LOCKING: can just spin_lock() since IRQs are disabled anyway. ++ * I am paranoid */ ++ acx_lock(adev, flags); ++ ++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR); ++ if (unlikely(0xffff == unmasked)) { ++ /* 0xffff value hints at missing hardware, ++ * so don't do anything. ++ * Not very clean, but other drivers do the same... */ ++ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n"); ++ goto none; ++ } ++ ++ /* We will check only "interesting" IRQ types */ ++ irqtype = unmasked & ~adev->irq_mask; ++ if (!irqtype) { ++ /* We are on a shared IRQ line and it wasn't our IRQ */ ++ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n", ++ unmasked, adev->irq_mask); ++ goto none; ++ } ++ ++ /* Done here because IRQ_NONEs taking three lines of log ++ ** drive me crazy */ ++ FN_ENTER; ++ ++#define IRQ_ITERATE 1 ++#if IRQ_ITERATE ++if (jiffies != adev->irq_last_jiffies) { ++ adev->irq_loops_this_jiffy = 0; ++ adev->irq_last_jiffies = jiffies; ++} ++ ++/* safety condition; we'll normally abort loop below ++ * in case no IRQ type occurred */ ++while (likely(--irqcount)) { ++#endif ++ /* ACK all IRQs ASAP */ ++ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff); ++ ++ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n", ++ unmasked, adev->irq_mask, irqtype); ++ ++ /* Handle most important IRQ types first */ ++ if (irqtype & HOST_INT_RX_COMPLETE) { ++ log(L_IRQ, "got Rx_Complete IRQ\n"); ++ acxpci_l_process_rxdesc(adev); ++ } ++ if (irqtype & HOST_INT_TX_COMPLETE) { ++ log(L_IRQ, "got Tx_Complete IRQ\n"); ++ /* don't clean up on each Tx complete, wait a bit ++ * unless we're going towards full, in which case ++ * we do it immediately, too (otherwise we might lockup ++ * with a full Tx buffer if we go into ++ * acxpci_l_clean_txdesc() at a time when we won't wakeup ++ * the net queue in there for some reason...) */ ++ if (adev->tx_free <= TX_START_CLEAN) { ++#if TX_CLEANUP_IN_SOFTIRQ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP); ++#else ++ acxpci_l_clean_txdesc(adev); ++#endif ++ } ++ } ++ ++ /* Less frequent ones */ ++ if (irqtype & (0 ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ | HOST_INT_SCAN_COMPLETE ++ )) { ++ if (irqtype & HOST_INT_CMD_COMPLETE) { ++ log(L_IRQ, "got Command_Complete IRQ\n"); ++ /* save the state for the running issue_cmd() */ ++ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE); ++ } ++ if (irqtype & HOST_INT_INFO) { ++ handle_info_irq(adev); ++ } ++ if (irqtype & HOST_INT_SCAN_COMPLETE) { ++ log(L_IRQ, "got Scan_Complete IRQ\n"); ++ /* need to do that in process context */ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN); ++ /* remember that fw is not scanning anymore */ ++ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE); ++ } ++ } ++ ++ /* These we just log, but either they happen rarely ++ * or we keep them masked out */ ++ if (irqtype & (0 ++ | HOST_INT_RX_DATA ++ /* | HOST_INT_TX_COMPLETE */ ++ | HOST_INT_TX_XFER ++ /* | HOST_INT_RX_COMPLETE */ ++ | HOST_INT_DTIM ++ | HOST_INT_BEACON ++ | HOST_INT_TIMER ++ | HOST_INT_KEY_NOT_FOUND ++ | HOST_INT_IV_ICV_FAILURE ++ /* | HOST_INT_CMD_COMPLETE */ ++ /* | HOST_INT_INFO */ ++ | HOST_INT_OVERFLOW ++ | HOST_INT_PROCESS_ERROR ++ /* | HOST_INT_SCAN_COMPLETE */ ++ | HOST_INT_FCS_THRESHOLD ++ | HOST_INT_UNKNOWN ++ )) { ++ log_unusual_irq(irqtype); ++ } ++ ++#if IRQ_ITERATE ++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR); ++ irqtype = unmasked & ~adev->irq_mask; ++ /* Bail out if no new IRQ bits or if all are masked out */ ++ if (!irqtype) ++ break; ++ ++ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) { ++ printk(KERN_ERR "acx: too many interrupts per jiffy!\n"); ++ /* Looks like card floods us with IRQs! Try to stop that */ ++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff); ++ /* This will short-circuit all future attempts to handle IRQ. ++ * We cant do much more... */ ++ adev->irq_mask = 0; ++ break; ++ } ++} ++#endif ++ /* Routine to perform blink with range */ ++ if (unlikely(adev->led_power == 2)) ++ update_link_quality_led(adev); ++ ++/* handled: */ ++ /* write_flush(adev); - not needed, last op was read anyway */ ++ acx_unlock(adev, flags); ++ FN_EXIT0; ++ return IRQ_HANDLED; ++ ++none: ++ acx_unlock(adev, flags); ++ return IRQ_NONE; ++} ++ ++ ++/*********************************************************************** ++** acxpci_l_power_led ++*/ ++void ++acxpci_l_power_led(acx_device_t *adev, int enable) ++{ ++ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800; ++ ++ /* A hack. Not moving message rate limiting to adev->xxx ++ * (it's only a debug message after all) */ ++ static int rate_limit = 0; ++ ++ if (rate_limit++ < 3) ++ log(L_IOCTL, "Please report in case toggling the power " ++ "LED doesn't work for your card!\n"); ++ if (enable) ++ write_reg16(adev, IO_ACX_GPIO_OUT, ++ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled); ++ else ++ write_reg16(adev, IO_ACX_GPIO_OUT, ++ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled); ++} ++ ++ ++/*********************************************************************** ++** Ioctls ++*/ ++ ++/*********************************************************************** ++*/ ++int ++acx111pci_ioctl_info( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra) ++{ ++#if ACX_DEBUG > 1 ++ acx_device_t *adev = ndev2adev(ndev); ++ rxdesc_t *rxdesc; ++ txdesc_t *txdesc; ++ rxhostdesc_t *rxhostdesc; ++ txhostdesc_t *txhostdesc; ++ struct acx111_ie_memoryconfig memconf; ++ struct acx111_ie_queueconfig queueconf; ++ unsigned long flags; ++ int i; ++ char memmap[0x34]; ++ char rxconfig[0x8]; ++ char fcserror[0x8]; ++ char ratefallback[0x5]; ++ ++ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) ) ++ return OK; ++ /* using printk() since we checked debug flag already */ ++ ++ acx_sem_lock(adev); ++ ++ if (!IS_ACX111(adev)) { ++ printk("acx111-specific function called " ++ "with non-acx111 chip, aborting\n"); ++ goto end_ok; ++ } ++ ++ /* get Acx111 Memory Configuration */ ++ memset(&memconf, 0, sizeof(memconf)); ++ /* BTW, fails with 12 (Write only) error code. ++ ** Retained for easy testing of issue_cmd error handling :) */ ++ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG); ++ ++ /* get Acx111 Queue Configuration */ ++ memset(&queueconf, 0, sizeof(queueconf)); ++ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS); ++ ++ /* get Acx111 Memory Map */ ++ memset(memmap, 0, sizeof(memmap)); ++ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP); ++ ++ /* get Acx111 Rx Config */ ++ memset(rxconfig, 0, sizeof(rxconfig)); ++ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG); ++ ++ /* get Acx111 fcs error count */ ++ memset(fcserror, 0, sizeof(fcserror)); ++ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT); ++ ++ /* get Acx111 rate fallback */ ++ memset(ratefallback, 0, sizeof(ratefallback)); ++ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK); ++ ++ /* force occurrence of a beacon interrupt */ ++ /* TODO: comment why is this necessary */ ++ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON); ++ ++ /* dump Acx111 Mem Configuration */ ++ printk("dump mem config:\n" ++ "data read: %d, struct size: %d\n" ++ "Number of stations: %1X\n" ++ "Memory block size: %1X\n" ++ "tx/rx memory block allocation: %1X\n" ++ "count rx: %X / tx: %X queues\n" ++ "options %1X\n" ++ "fragmentation %1X\n" ++ "Rx Queue 1 Count Descriptors: %X\n" ++ "Rx Queue 1 Host Memory Start: %X\n" ++ "Tx Queue 1 Count Descriptors: %X\n" ++ "Tx Queue 1 Attributes: %X\n", ++ memconf.len, (int) sizeof(memconf), ++ memconf.no_of_stations, ++ memconf.memory_block_size, ++ memconf.tx_rx_memory_block_allocation, ++ memconf.count_rx_queues, memconf.count_tx_queues, ++ memconf.options, ++ memconf.fragmentation, ++ memconf.rx_queue1_count_descs, ++ acx2cpu(memconf.rx_queue1_host_rx_start), ++ memconf.tx_queue1_count_descs, ++ memconf.tx_queue1_attributes); ++ ++ /* dump Acx111 Queue Configuration */ ++ printk("dump queue head:\n" ++ "data read: %d, struct size: %d\n" ++ "tx_memory_block_address (from card): %X\n" ++ "rx_memory_block_address (from card): %X\n" ++ "rx1_queue address (from card): %X\n" ++ "tx1_queue address (from card): %X\n" ++ "tx1_queue attributes (from card): %X\n", ++ queueconf.len, (int) sizeof(queueconf), ++ queueconf.tx_memory_block_address, ++ queueconf.rx_memory_block_address, ++ queueconf.rx1_queue_address, ++ queueconf.tx1_queue_address, ++ queueconf.tx1_attributes); ++ ++ /* dump Acx111 Mem Map */ ++ printk("dump mem map:\n" ++ "data read: %d, struct size: %d\n" ++ "Code start: %X\n" ++ "Code end: %X\n" ++ "WEP default key start: %X\n" ++ "WEP default key end: %X\n" ++ "STA table start: %X\n" ++ "STA table end: %X\n" ++ "Packet template start: %X\n" ++ "Packet template end: %X\n" ++ "Queue memory start: %X\n" ++ "Queue memory end: %X\n" ++ "Packet memory pool start: %X\n" ++ "Packet memory pool end: %X\n" ++ "iobase: %p\n" ++ "iobase2: %p\n", ++ *((u16 *)&memmap[0x02]), (int) sizeof(memmap), ++ *((u32 *)&memmap[0x04]), ++ *((u32 *)&memmap[0x08]), ++ *((u32 *)&memmap[0x0C]), ++ *((u32 *)&memmap[0x10]), ++ *((u32 *)&memmap[0x14]), ++ *((u32 *)&memmap[0x18]), ++ *((u32 *)&memmap[0x1C]), ++ *((u32 *)&memmap[0x20]), ++ *((u32 *)&memmap[0x24]), ++ *((u32 *)&memmap[0x28]), ++ *((u32 *)&memmap[0x2C]), ++ *((u32 *)&memmap[0x30]), ++ adev->iobase, ++ adev->iobase2); ++ ++ /* dump Acx111 Rx Config */ ++ printk("dump rx config:\n" ++ "data read: %d, struct size: %d\n" ++ "rx config: %X\n" ++ "rx filter config: %X\n", ++ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig), ++ *((u16 *)&rxconfig[0x04]), ++ *((u16 *)&rxconfig[0x06])); ++ ++ /* dump Acx111 fcs error */ ++ printk("dump fcserror:\n" ++ "data read: %d, struct size: %d\n" ++ "fcserrors: %X\n", ++ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror), ++ *((u32 *)&fcserror[0x04])); ++ ++ /* dump Acx111 rate fallback */ ++ printk("dump rate fallback:\n" ++ "data read: %d, struct size: %d\n" ++ "ratefallback: %X\n", ++ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback), ++ *((u8 *)&ratefallback[0x04])); ++ ++ /* protect against IRQ */ ++ acx_lock(adev, flags); ++ ++ /* dump acx111 internal rx descriptor ring buffer */ ++ rxdesc = adev->rxdesc_start; ++ ++ /* loop over complete receive pool */ ++ if (rxdesc) for (i = 0; i < RX_CNT; i++) { ++ printk("\ndump internal rxdesc %d:\n" ++ "mem pos %p\n" ++ "next 0x%X\n" ++ "acx mem pointer (dynamic) 0x%X\n" ++ "CTL (dynamic) 0x%X\n" ++ "Rate (dynamic) 0x%X\n" ++ "RxStatus (dynamic) 0x%X\n" ++ "Mod/Pre (dynamic) 0x%X\n", ++ i, ++ rxdesc, ++ acx2cpu(rxdesc->pNextDesc), ++ acx2cpu(rxdesc->ACXMemPtr), ++ rxdesc->Ctl_8, ++ rxdesc->rate, ++ rxdesc->error, ++ rxdesc->SNR); ++ rxdesc++; ++ } ++ ++ /* dump host rx descriptor ring buffer */ ++ ++ rxhostdesc = adev->rxhostdesc_start; ++ ++ /* loop over complete receive pool */ ++ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) { ++ printk("\ndump host rxdesc %d:\n" ++ "mem pos %p\n" ++ "buffer mem pos 0x%X\n" ++ "buffer mem offset 0x%X\n" ++ "CTL 0x%X\n" ++ "Length 0x%X\n" ++ "next 0x%X\n" ++ "Status 0x%X\n", ++ i, ++ rxhostdesc, ++ acx2cpu(rxhostdesc->data_phy), ++ rxhostdesc->data_offset, ++ le16_to_cpu(rxhostdesc->Ctl_16), ++ le16_to_cpu(rxhostdesc->length), ++ acx2cpu(rxhostdesc->desc_phy_next), ++ rxhostdesc->Status); ++ rxhostdesc++; ++ } ++ ++ /* dump acx111 internal tx descriptor ring buffer */ ++ txdesc = adev->txdesc_start; ++ ++ /* loop over complete transmit pool */ ++ if (txdesc) for (i = 0; i < TX_CNT; i++) { ++ printk("\ndump internal txdesc %d:\n" ++ "size 0x%X\n" ++ "mem pos %p\n" ++ "next 0x%X\n" ++ "acx mem pointer (dynamic) 0x%X\n" ++ "host mem pointer (dynamic) 0x%X\n" ++ "length (dynamic) 0x%X\n" ++ "CTL (dynamic) 0x%X\n" ++ "CTL2 (dynamic) 0x%X\n" ++ "Status (dynamic) 0x%X\n" ++ "Rate (dynamic) 0x%X\n", ++ i, ++ (int) sizeof(struct txdesc), ++ txdesc, ++ acx2cpu(txdesc->pNextDesc), ++ acx2cpu(txdesc->AcxMemPtr), ++ acx2cpu(txdesc->HostMemPtr), ++ le16_to_cpu(txdesc->total_length), ++ txdesc->Ctl_8, ++ txdesc->Ctl2_8, txdesc->error, ++ txdesc->u.r1.rate); ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ ++ /* dump host tx descriptor ring buffer */ ++ ++ txhostdesc = adev->txhostdesc_start; ++ ++ /* loop over complete host send pool */ ++ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) { ++ printk("\ndump host txdesc %d:\n" ++ "mem pos %p\n" ++ "buffer mem pos 0x%X\n" ++ "buffer mem offset 0x%X\n" ++ "CTL 0x%X\n" ++ "Length 0x%X\n" ++ "next 0x%X\n" ++ "Status 0x%X\n", ++ i, ++ txhostdesc, ++ acx2cpu(txhostdesc->data_phy), ++ txhostdesc->data_offset, ++ le16_to_cpu(txhostdesc->Ctl_16), ++ le16_to_cpu(txhostdesc->length), ++ acx2cpu(txhostdesc->desc_phy_next), ++ le32_to_cpu(txhostdesc->Status)); ++ txhostdesc++; ++ } ++ ++ /* write_reg16(adev, 0xb4, 0x4); */ ++ ++ acx_unlock(adev, flags); ++end_ok: ++ ++ acx_sem_unlock(adev); ++#endif /* ACX_DEBUG */ ++ return OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acx100pci_ioctl_set_phy_amp_bias( ++ struct net_device *ndev, ++ struct iw_request_info *info, ++ struct iw_param *vwrq, ++ char *extra) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ u16 gpio_old; ++ ++ if (!IS_ACX100(adev)) { ++ /* WARNING!!! ++ * Removing this check *might* damage ++ * hardware, since we're tweaking GPIOs here after all!!! ++ * You've been warned... ++ * WARNING!!! */ ++ printk("acx: sorry, setting bias level for non-acx100 " ++ "is not supported yet\n"); ++ return OK; ++ } ++ ++ if (*extra > 7) { ++ printk("acx: invalid bias parameter, range is 0-7\n"); ++ return -EINVAL; ++ } ++ ++ acx_sem_lock(adev); ++ ++ /* Need to lock accesses to [IO_ACX_GPIO_OUT]: ++ * IRQ handler uses it to update LED */ ++ acx_lock(adev, flags); ++ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT); ++ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8)); ++ acx_unlock(adev, flags); ++ ++ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old); ++ printk("%s: PHY power amplifier bias: old:%d, new:%d\n", ++ ndev->name, ++ (gpio_old & 0x0700) >> 8, (unsigned char)*extra); ++ ++ acx_sem_unlock(adev); ++ ++ return OK; ++} ++ ++ ++/*************************************************************** ++** acxpci_l_alloc_tx ++** Actually returns a txdesc_t* ptr ++** ++** FIXME: in case of fragments, should allocate multiple descrs ++** after figuring out how many we need and whether we still have ++** sufficiently many. ++*/ ++tx_t* ++acxpci_l_alloc_tx(acx_device_t *adev) ++{ ++ struct txdesc *txdesc; ++ unsigned head; ++ u8 ctl8; ++ ++ FN_ENTER; ++ ++ if (unlikely(!adev->tx_free)) { ++ printk("acx: BUG: no free txdesc left\n"); ++ txdesc = NULL; ++ goto end; ++ } ++ ++ head = adev->tx_head; ++ txdesc = get_txdesc(adev, head); ++ ctl8 = txdesc->Ctl_8; ++ ++ /* 2005-10-11: there were several bug reports on this happening ++ ** but now cause seems to be understood & fixed */ ++ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_ACXDONE_HOSTOWN))) { ++ /* whoops, descr at current index is not free, so probably ++ * ring buffer already full */ ++ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find " ++ "free txdesc\n", head, ctl8); ++ txdesc = NULL; ++ goto end; ++ } ++ ++ /* Needed in case txdesc won't be eventually submitted for tx */ ++ txdesc->Ctl_8 = DESC_CTL_ACXDONE_HOSTOWN; ++ ++ adev->tx_free--; ++ log(L_BUFT, "tx: got desc %u, %u remain\n", ++ head, adev->tx_free); ++ /* Keep a few free descs between head and tail of tx ring. ++ ** It is not absolutely needed, just feels safer */ ++ if (adev->tx_free < TX_STOP_QUEUE) { ++ log(L_BUF, "stop queue (%u tx desc left)\n", ++ adev->tx_free); ++ acx_stop_queue(adev->ndev, NULL); ++ } ++ ++ /* returning current descriptor, so advance to next free one */ ++ adev->tx_head = (head + 1) % TX_CNT; ++end: ++ FN_EXIT0; ++ ++ return (tx_t*)txdesc; ++} ++ ++ ++/*********************************************************************** ++*/ ++void* ++acxpci_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque) ++{ ++ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data; ++} ++ ++ ++/*********************************************************************** ++** acxpci_l_tx_data ++** ++** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx). ++** Can be called from acx_i_start_xmit (data frames from net core). ++** ++** FIXME: in case of fragments, should loop over the number of ++** pre-allocated tx descrs, properly setting up transfer data and ++** CTL_xxx flags according to fragment number. ++*/ ++void ++acxpci_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len) ++{ ++ txdesc_t *txdesc = (txdesc_t*)tx_opaque; ++ txhostdesc_t *hostdesc1, *hostdesc2; ++ client_t *clt; ++ u16 rate_cur; ++ u8 Ctl_8, Ctl2_8; ++ ++ FN_ENTER; ++ ++ /* fw doesn't tx such packets anyhow */ ++ if (unlikely(len < WLAN_HDR_A3_LEN)) ++ goto end; ++ ++ hostdesc1 = get_txhostdesc(adev, txdesc); ++ /* modify flag status in separate variable to be able to write it back ++ * in one big swoop later (also in order to have less device memory ++ * accesses) */ ++ Ctl_8 = txdesc->Ctl_8; ++ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */ ++ ++ hostdesc2 = hostdesc1 + 1; ++ ++ /* DON'T simply set Ctl field to 0 here globally, ++ * it needs to maintain a consistent flag status (those are state flags!!), ++ * otherwise it may lead to severe disruption. Only set or reset particular ++ * flags at the exact moment this is needed... */ ++ ++ /* let chip do RTS/CTS handshaking before sending ++ * in case packet size exceeds threshold */ ++ if (len > adev->rts_threshold) ++ SET_BIT(Ctl2_8, DESC_CTL2_RTS); ++ else ++ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS); ++ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_3_AP: ++ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1); ++ break; ++ case ACX_MODE_2_STA: ++ clt = adev->ap_client; ++ break; ++#if 0 ++/* testing was done on acx111: */ ++ case ACX_MODE_MONITOR: ++ SET_BIT(Ctl2_8, 0 ++/* sends CTS to self before packet */ ++ + DESC_CTL2_SEQ /* don't increase sequence field */ ++/* not working (looks like good fcs is still added) */ ++ + DESC_CTL2_FCS /* don't add the FCS */ ++/* not tested */ ++ + DESC_CTL2_MORE_FRAG ++/* not tested */ ++ + DESC_CTL2_RETRY /* don't increase retry field */ ++/* not tested */ ++ + DESC_CTL2_POWER /* don't increase power mgmt. field */ ++/* no effect */ ++ + DESC_CTL2_WEP /* encrypt this frame */ ++/* not tested */ ++ + DESC_CTL2_DUR /* don't increase duration field */ ++ ); ++ /* fallthrough */ ++#endif ++ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */ ++ clt = NULL; ++ break; ++ } ++ ++ rate_cur = clt ? clt->rate_cur : adev->rate_bcast; ++ if (unlikely(!rate_cur)) { ++ printk("acx: driver bug! bad ratemask\n"); ++ goto end; ++ } ++ ++ /* used in tx cleanup routine for auto rate and accounting: */ ++ put_txcr(adev, txdesc, clt, rate_cur); ++ ++ txdesc->total_length = cpu_to_le16(len); ++ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN); ++ if (IS_ACX111(adev)) { ++ /* note that if !txdesc->do_auto, txrate->cur ++ ** has only one nonzero bit */ ++ txdesc->u.r2.rate111 = cpu_to_le16( ++ rate_cur ++ /* WARNING: I was never able to make it work with prism54 AP. ++ ** It was falling down to 1Mbit where shortpre is not applicable, ++ ** and not working at all at "5,11 basic rates only" setting. ++ ** I even didn't see tx packets in radio packet capture. ++ ** Disabled for now --vda */ ++ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */ ++ ); ++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS ++ /* should add this to rate111 above as necessary */ ++ | (clt->pbcc511 ? RATE111_PBCC511 : 0) ++#endif ++ hostdesc1->length = cpu_to_le16(len); ++ } else { /* ACX100 */ ++ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100; ++ txdesc->u.r1.rate = rate_100; ++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS ++ if (clt->pbcc511) { ++ if (n == RATE100_5 || n == RATE100_11) ++ n |= RATE100_PBCC511; ++ } ++ ++ if (clt->shortpre && (clt->cur != RATE111_1)) ++ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */ ++#endif ++ /* set autodma and reclaim and 1st mpdu */ ++ SET_BIT(Ctl_8, DESC_CTL_AUTODMA | DESC_CTL_RECLAIM | DESC_CTL_FIRSTFRAG); ++#if ACX_FRAGMENTATION ++ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */ ++#endif ++ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN); ++ } ++ /* don't need to clean ack/rts statistics here, already ++ * done on descr cleanup */ ++ ++ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors ++ * are now owned by the acx100; do this as LAST operation */ ++ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN); ++ /* flush writes before we release hostdesc to the adapter here */ ++ wmb(); ++ CLEAR_BIT(hostdesc1->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN)); ++ CLEAR_BIT(hostdesc2->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN)); ++ ++ /* write back modified flags */ ++ txdesc->Ctl2_8 = Ctl2_8; ++ txdesc->Ctl_8 = Ctl_8; ++ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */ ++ ++ /* flush writes before we tell the adapter that it's its turn now */ ++ mmiowb(); ++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC); ++ write_flush(adev); ++ ++ /* log the packet content AFTER sending it, ++ * in order to not delay sending any further than absolutely needed ++ * Do separate logs for acx100/111 to have human-readable rates */ ++ if (unlikely(acx_debug & (L_XFER|L_DATA))) { ++ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc; ++ if (IS_ACX111(adev)) ++ printk("tx: pkt (%s): len %d " ++ "rate %04X%s status %u\n", ++ acx_get_packet_type_string(le16_to_cpu(fc)), len, ++ le16_to_cpu(txdesc->u.r2.rate111), ++ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "", ++ adev->status); ++ else ++ printk("tx: pkt (%s): len %d rate %03u%s status %u\n", ++ acx_get_packet_type_string(fc), len, ++ txdesc->u.r1.rate, ++ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "", ++ adev->status); ++ ++ if (acx_debug & L_DATA) { ++ printk("tx: 802.11 [%d]: ", len); ++ acx_dump_bytes(hostdesc1->data, len); ++ } ++ } ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_l_clean_txdesc ++** ++** This function resets the txdescs' status when the ACX100 ++** signals the TX done IRQ (txdescs have been processed), starting with ++** the pool index of the descriptor which we would use next, ++** in order to make sure that we can be as fast as possible ++** in filling new txdescs. ++** Everytime we get called we know where the next packet to be cleaned is. ++*/ ++ ++#if !ACX_DEBUG ++static inline void log_txbuffer(const acx_device_t *adev) {} ++#else ++static void ++log_txbuffer(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ int i; ++ ++ /* no FN_ENTER here, we don't want that */ ++ /* no locks here, since it's entirely non-critical code */ ++ txdesc = adev->txdesc_start; ++ if (unlikely(!txdesc)) return; ++ printk("tx: desc->Ctl8's:"); ++ for (i = 0; i < TX_CNT; i++) { ++ printk(" %02X", txdesc->Ctl_8); ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ printk("\n"); ++} ++#endif ++ ++ ++static void ++handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger) ++{ ++ const char *err = "unknown error"; ++ ++ /* hmm, should we handle this as a mask ++ * of *several* bits? ++ * For now I think only caring about ++ * individual bits is ok... */ ++ switch (error) { ++ case 0x01: ++ err = "no Tx due to error in other fragment"; ++ adev->wstats.discard.fragment++; ++ break; ++ case 0x02: ++ err = "Tx aborted"; ++ adev->stats.tx_aborted_errors++; ++ break; ++ case 0x04: ++ err = "Tx desc wrong parameters"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x08: ++ err = "WEP key not found"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x10: ++ err = "MSDU lifetime timeout? - try changing " ++ "'iwconfig retry lifetime XXX'"; ++ adev->wstats.discard.misc++; ++ break; ++ case 0x20: ++ err = "excessive Tx retries due to either distance " ++ "too high or unable to Tx or Tx frame error - " ++ "try changing 'iwconfig txpower XXX' or " ++ "'sens'itivity or 'retry'"; ++ adev->wstats.discard.retries++; ++ /* Tx error 0x20 also seems to occur on ++ * overheating, so I'm not sure whether we ++ * actually want to do aggressive radio recalibration, ++ * since people maybe won't notice then that their hardware ++ * is slowly getting cooked... ++ * Or is it still a safe long distance from utter ++ * radio non-functionality despite many radio recalibs ++ * to final destructive overheating of the hardware? ++ * In this case we really should do recalib here... ++ * I guess the only way to find out is to do a ++ * potentially fatal self-experiment :-\ ++ * Or maybe only recalib in case we're using Tx ++ * rate auto (on errors switching to lower speed ++ * --> less heat?) or 802.11 power save mode? ++ * ++ * ok, just do it. */ ++ if (++adev->retry_errors_msg_ratelimit % 4 == 0) { ++ if (adev->retry_errors_msg_ratelimit <= 20) { ++ printk("%s: several excessive Tx " ++ "retry errors occurred, attempting " ++ "to recalibrate radio. Radio " ++ "drift might be caused by increasing " ++ "card temperature, please check the card " ++ "before it's too late!\n", ++ adev->ndev->name); ++ if (adev->retry_errors_msg_ratelimit == 20) ++ printk("disabling above message\n"); ++ } ++ ++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB); ++ } ++ break; ++ case 0x40: ++ err = "Tx buffer overflow"; ++ adev->stats.tx_fifo_errors++; ++ break; ++ case 0x80: ++ /* possibly ACPI C-state powersaving related!!! ++ * (DMA timeout due to excessively high wakeup ++ * latency after C-state activation!?) ++ * Disable C-State powersaving and try again, ++ * then PLEASE REPORT, I'm VERY interested in ++ * whether my theory is correct that this is ++ * actually the problem here. ++ * In that case, use new Linux idle wakeup latency ++ * requirements kernel API to prevent this issue. */ ++ err = "DMA error"; ++ adev->wstats.discard.misc++; ++ break; ++ } ++ adev->stats.tx_errors++; ++ if (adev->stats.tx_errors <= 20) ++ printk("%s: tx error 0x%02X, buf %02u! (%s)\n", ++ adev->ndev->name, error, finger, err); ++ else ++ printk("%s: tx error 0x%02X, buf %02u!\n", ++ adev->ndev->name, error, finger); ++} ++ ++ ++unsigned int ++acxpci_l_clean_txdesc(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ unsigned finger; ++ int num_cleaned; ++ u16 r111; ++ u8 error, ack_failures, rts_failures, rts_ok, r100; ++ ++ FN_ENTER; ++ ++ if (unlikely(acx_debug & L_DEBUG)) ++ log_txbuffer(adev); ++ ++ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail); ++ ++ /* We know first descr which is not free yet. We advance it as far ++ ** as we see correct bits set in following descs (if next desc ++ ** is NOT free, we shouldn't advance at all). We know that in ++ ** front of tx_tail may be "holes" with isolated free descs. ++ ** We will catch up when all intermediate descs will be freed also */ ++ ++ finger = adev->tx_tail; ++ num_cleaned = 0; ++ while (likely(finger != adev->tx_head)) { ++ txdesc = get_txdesc(adev, finger); ++ ++ /* If we allocated txdesc on tx path but then decided ++ ** to NOT use it, then it will be left as a free "bubble" ++ ** in the "allocated for tx" part of the ring. ++ ** We may meet it on the next ring pass here. */ ++ ++ /* stop if not marked as "tx finished" and "host owned" */ ++ if ((txdesc->Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN) ++ != DESC_CTL_ACXDONE_HOSTOWN) { ++ if (unlikely(!num_cleaned)) { /* maybe remove completely */ ++ log(L_BUFT, "clean_txdesc: tail isn't free. " ++ "tail:%d head:%d\n", ++ adev->tx_tail, adev->tx_head); ++ } ++ break; ++ } ++ ++ /* remember desc values... */ ++ error = txdesc->error; ++ ack_failures = txdesc->ack_failures; ++ rts_failures = txdesc->rts_failures; ++ rts_ok = txdesc->rts_ok; ++ r100 = txdesc->u.r1.rate; ++ r111 = le16_to_cpu(txdesc->u.r2.rate111); ++ ++ /* need to check for certain error conditions before we ++ * clean the descriptor: we still need valid descr data here */ ++ if (unlikely(0x30 & error)) { ++ /* only send IWEVTXDROP in case of retry or lifetime exceeded; ++ * all other errors mean we screwed up locally */ ++ union iwreq_data wrqu; ++ wlan_hdr_t *hdr; ++ txhostdesc_t *hostdesc; ++ ++ hostdesc = get_txhostdesc(adev, txdesc); ++ hdr = (wlan_hdr_t *)hostdesc->data; ++ MAC_COPY(wrqu.addr.sa_data, hdr->a1); ++ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL); ++ } ++ ++ /* ...and free the desc */ ++ txdesc->error = 0; ++ txdesc->ack_failures = 0; ++ txdesc->rts_failures = 0; ++ txdesc->rts_ok = 0; ++ /* signal host owning it LAST, since ACX already knows that this ++ ** descriptor is finished since it set Ctl_8 accordingly. */ ++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN; ++ ++ adev->tx_free++; ++ num_cleaned++; ++ ++ if ((adev->tx_free >= TX_START_QUEUE) ++ && (adev->status == ACX_STATUS_4_ASSOCIATED) ++ && (acx_queue_stopped(adev->ndev)) ++ ) { ++ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n", ++ adev->tx_free); ++ acx_wake_queue(adev->ndev, NULL); ++ } ++ ++ /* do error checking, rate handling and logging ++ * AFTER having done the work, it's faster */ ++ ++ /* do rate handling */ ++ if (adev->rate_auto) { ++ struct client *clt = get_txc(adev, txdesc); ++ if (clt) { ++ u16 cur = get_txr(adev, txdesc); ++ if (clt->rate_cur == cur) { ++ acx_l_handle_txrate_auto(adev, clt, ++ cur, /* intended rate */ ++ r100, r111, /* actually used rate */ ++ (error & 0x30), /* was there an error? */ ++ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free); ++ } ++ } ++ } ++ ++ if (unlikely(error)) ++ handle_tx_error(adev, error, finger); ++ ++ if (IS_ACX111(adev)) ++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n", ++ finger, ack_failures, rts_failures, rts_ok, r111); ++ else ++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n", ++ finger, ack_failures, rts_failures, rts_ok, r100); ++ ++ /* update pointer for descr to be cleaned next */ ++ finger = (finger + 1) % TX_CNT; ++ } ++ ++ /* remember last position */ ++ adev->tx_tail = finger; ++/* end: */ ++ FN_EXIT1(num_cleaned); ++ return num_cleaned; ++} ++ ++/* clean *all* Tx descriptors, and regardless of their previous state. ++ * Used for brute-force reset handling. */ ++void ++acxpci_l_clean_txdesc_emergency(acx_device_t *adev) ++{ ++ txdesc_t *txdesc; ++ int i; ++ ++ FN_ENTER; ++ ++ for (i = 0; i < TX_CNT; i++) { ++ txdesc = get_txdesc(adev, i); ++ ++ /* free it */ ++ txdesc->ack_failures = 0; ++ txdesc->rts_failures = 0; ++ txdesc->rts_ok = 0; ++ txdesc->error = 0; ++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN; ++ } ++ ++ adev->tx_free = TX_CNT; ++ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxpci_s_create_tx_host_desc_queue ++*/ ++ ++static void* ++allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg) ++{ ++ void *ptr; ++ ++ ptr = dma_alloc_coherent(adev->pdev ? &adev->pdev->dev : NULL, ++ size, phy, GFP_KERNEL); ++ ++ if (ptr) { ++ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n", ++ msg, (int)size, ptr, (unsigned long long)*phy); ++ memset(ptr, 0, size); ++ return ptr; ++ } ++ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n", ++ msg, (int)size); ++ return NULL; ++} ++ ++ ++static int ++acxpci_s_create_tx_host_desc_queue(acx_device_t *adev) ++{ ++ txhostdesc_t *hostdesc; ++ u8 *txbuf; ++ dma_addr_t hostdesc_phy; ++ dma_addr_t txbuf_phy; ++ int i; ++ ++ FN_ENTER; ++ ++ /* allocate TX buffer */ ++ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS; ++ adev->txbuf_start = allocate(adev, adev->txbuf_area_size, ++ &adev->txbuf_startphy, "txbuf_start"); ++ if (!adev->txbuf_start) ++ goto fail; ++ ++ /* allocate the TX host descriptor queue pool */ ++ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc); ++ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size, ++ &adev->txhostdesc_startphy, "txhostdesc_start"); ++ if (!adev->txhostdesc_start) ++ goto fail; ++ /* check for proper alignment of TX host descriptor pool */ ++ if ((long) adev->txhostdesc_start & 3) { ++ printk("acx: driver bug: dma alloc returns unaligned address\n"); ++ goto fail; ++ } ++ ++ hostdesc = adev->txhostdesc_start; ++ hostdesc_phy = adev->txhostdesc_startphy; ++ txbuf = adev->txbuf_start; ++ txbuf_phy = adev->txbuf_startphy; ++ ++#if 0 ++/* Each tx buffer is accessed by hardware via ++** txdesc -> txhostdesc(s) -> txbuffer(s). ++** We use only one txhostdesc per txdesc, but it looks like ++** acx111 is buggy: it accesses second txhostdesc ++** (via hostdesc.desc_phy_next field) even if ++** txdesc->length == hostdesc->length and thus ++** entire packet was placed into first txhostdesc. ++** Due to this bug acx111 hangs unless second txhostdesc ++** has le16_to_cpu(hostdesc.length) = 3 (or larger) ++** Storing NULL into hostdesc.desc_phy_next ++** doesn't seem to help. ++** ++** Update: although it worked on Xterasys XN-2522g ++** with len=3 trick, WG311v2 is even more bogus, doesn't work. ++** Keeping this code (#ifdef'ed out) for documentational purposes. ++*/ ++ for (i = 0; i < TX_CNT*2; i++) { ++ hostdesc_phy += sizeof(*hostdesc); ++ if (!(i & 1)) { ++ hostdesc->data_phy = cpu2acx(txbuf_phy); ++ /* hostdesc->data_offset = ... */ ++ /* hostdesc->reserved = ... */ ++ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN); ++ /* hostdesc->length = ... */ ++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy); ++ hostdesc->pNext = ptr2acx(NULL); ++ /* hostdesc->Status = ... */ ++ /* below: non-hardware fields */ ++ hostdesc->data = txbuf; ++ ++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS; ++ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS; ++ } else { ++ /* hostdesc->data_phy = ... */ ++ /* hostdesc->data_offset = ... */ ++ /* hostdesc->reserved = ... */ ++ /* hostdesc->Ctl_16 = ... */ ++ hostdesc->length = cpu_to_le16(3); /* bug workaround */ ++ /* hostdesc->desc_phy_next = ... */ ++ /* hostdesc->pNext = ... */ ++ /* hostdesc->Status = ... */ ++ /* below: non-hardware fields */ ++ /* hostdesc->data = ... */ ++ } ++ hostdesc++; ++ } ++#endif ++/* We initialize two hostdescs so that they point to adjacent ++** memory areas. Thus txbuf is really just a contiguous memory area */ ++ for (i = 0; i < TX_CNT*2; i++) { ++ hostdesc_phy += sizeof(*hostdesc); ++ ++ hostdesc->data_phy = cpu2acx(txbuf_phy); ++ /* done by memset(0): hostdesc->data_offset = 0; */ ++ /* hostdesc->reserved = ... */ ++ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN); ++ /* hostdesc->length = ... */ ++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy); ++ /* done by memset(0): hostdesc->pNext = ptr2acx(NULL); */ ++ /* hostdesc->Status = ... */ ++ /* ->data is a non-hardware field: */ ++ hostdesc->data = txbuf; ++ ++ if (!(i & 1)) { ++ txbuf += WLAN_HDR_A3_LEN; ++ txbuf_phy += WLAN_HDR_A3_LEN; ++ } else { ++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN; ++ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN; ++ } ++ hostdesc++; ++ } ++ hostdesc--; ++ hostdesc->desc_phy_next = cpu2acx(adev->txhostdesc_startphy); ++ ++ FN_EXIT1(OK); ++ return OK; ++fail: ++ printk("acx: create_tx_host_desc_queue FAILED\n"); ++ /* dealloc will be done by free function on error case */ ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*************************************************************** ++** acxpci_s_create_rx_host_desc_queue ++*/ ++/* the whole size of a data buffer (header plus data body) ++ * plus 32 bytes safety offset at the end */ ++#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32) ++ ++static int ++acxpci_s_create_rx_host_desc_queue(acx_device_t *adev) ++{ ++ rxhostdesc_t *hostdesc; ++ rxbuffer_t *rxbuf; ++ dma_addr_t hostdesc_phy; ++ dma_addr_t rxbuf_phy; ++ int i; ++ ++ FN_ENTER; ++ ++ /* allocate the RX host descriptor queue pool */ ++ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc); ++ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size, ++ &adev->rxhostdesc_startphy, "rxhostdesc_start"); ++ if (!adev->rxhostdesc_start) ++ goto fail; ++ /* check for proper alignment of RX host descriptor pool */ ++ if ((long) adev->rxhostdesc_start & 3) { ++ printk("acx: driver bug: dma alloc returns unaligned address\n"); ++ goto fail; ++ } ++ ++ /* allocate Rx buffer pool which will be used by the acx ++ * to store the whole content of the received frames in it */ ++ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE; ++ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size, ++ &adev->rxbuf_startphy, "rxbuf_start"); ++ if (!adev->rxbuf_start) ++ goto fail; ++ ++ rxbuf = adev->rxbuf_start; ++ rxbuf_phy = adev->rxbuf_startphy; ++ hostdesc = adev->rxhostdesc_start; ++ hostdesc_phy = adev->rxhostdesc_startphy; ++ ++ /* don't make any popular C programming pointer arithmetic mistakes ++ * here, otherwise I'll kill you... ++ * (and don't dare asking me why I'm warning you about that...) */ ++ for (i = 0; i < RX_CNT; i++) { ++ hostdesc->data = rxbuf; ++ hostdesc->data_phy = cpu2acx(rxbuf_phy); ++ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE); ++ CLEAR_BIT(hostdesc->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN)); ++ rxbuf++; ++ rxbuf_phy += sizeof(*rxbuf); ++ hostdesc_phy += sizeof(*hostdesc); ++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy); ++ hostdesc++; ++ } ++ hostdesc--; ++ hostdesc->desc_phy_next = cpu2acx(adev->rxhostdesc_startphy); ++ FN_EXIT1(OK); ++ return OK; ++fail: ++ printk("acx: create_rx_host_desc_queue FAILED\n"); ++ /* dealloc will be done by free function on error case */ ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*************************************************************** ++** acxpci_s_create_hostdesc_queues ++*/ ++int ++acxpci_s_create_hostdesc_queues(acx_device_t *adev) ++{ ++ int result; ++ result = acxpci_s_create_tx_host_desc_queue(adev); ++ if (OK != result) return result; ++ result = acxpci_s_create_rx_host_desc_queue(adev); ++ return result; ++} ++ ++ ++/*************************************************************** ++** acxpci_create_tx_desc_queue ++*/ ++static void ++acxpci_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start) ++{ ++ txdesc_t *txdesc; ++ txhostdesc_t *hostdesc; ++ dma_addr_t hostmemptr; ++ u32 mem_offs; ++ int i; ++ ++ FN_ENTER; ++ ++ if (IS_ACX100(adev)) ++ adev->txdesc_size = sizeof(*txdesc); ++ else ++ /* the acx111 txdesc is 4 bytes larger */ ++ adev->txdesc_size = sizeof(*txdesc) + 4; ++ ++ adev->txdesc_start = (txdesc_t *) (adev->iobase2 + tx_queue_start); ++ ++ log(L_DEBUG, "adev->iobase2=%p\n" ++ "tx_queue_start=%08X\n" ++ "adev->txdesc_start=%p\n", ++ adev->iobase2, ++ tx_queue_start, ++ adev->txdesc_start); ++ ++ adev->tx_free = TX_CNT; ++ /* done by memset: adev->tx_head = 0; */ ++ /* done by memset: adev->tx_tail = 0; */ ++ txdesc = adev->txdesc_start; ++ mem_offs = tx_queue_start; ++ hostmemptr = adev->txhostdesc_startphy; ++ hostdesc = adev->txhostdesc_start; ++ ++ if (IS_ACX111(adev)) { ++ /* ACX111 has a preinitialized Tx buffer! */ ++ /* loop over whole send pool */ ++ /* FIXME: do we have to do the hostmemptr stuff here?? */ ++ for (i = 0; i < TX_CNT; i++) { ++ txdesc->HostMemPtr = ptr2acx(hostmemptr); ++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN; ++ /* reserve two (hdr desc and payload desc) */ ++ hostdesc += 2; ++ hostmemptr += 2 * sizeof(*hostdesc); ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ } else { ++ /* ACX100 Tx buffer needs to be initialized by us */ ++ /* clear whole send pool. sizeof is safe here (we are acx100) */ ++ memset(adev->txdesc_start, 0, TX_CNT * sizeof(*txdesc)); ++ ++ /* loop over whole send pool */ ++ for (i = 0; i < TX_CNT; i++) { ++ log(L_DEBUG, "configure card tx descriptor: 0x%p, " ++ "size: 0x%X\n", txdesc, adev->txdesc_size); ++ ++ /* pointer to hostdesc memory */ ++ txdesc->HostMemPtr = ptr2acx(hostmemptr); ++ /* initialise ctl */ ++ txdesc->Ctl_8 = ( DESC_CTL_HOSTOWN | DESC_CTL_RECLAIM ++ | DESC_CTL_AUTODMA | DESC_CTL_FIRSTFRAG); ++ /* done by memset(0): txdesc->Ctl2_8 = 0; */ ++ /* point to next txdesc */ ++ txdesc->pNextDesc = cpu2acx(mem_offs + adev->txdesc_size); ++ /* reserve two (hdr desc and payload desc) */ ++ hostdesc += 2; ++ hostmemptr += 2 * sizeof(*hostdesc); ++ /* go to the next one */ ++ mem_offs += adev->txdesc_size; ++ /* ++ is safe here (we are acx100) */ ++ txdesc++; ++ } ++ /* go back to the last one */ ++ txdesc--; ++ /* and point to the first making it a ring buffer */ ++ txdesc->pNextDesc = cpu2acx(tx_queue_start); ++ } ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxpci_create_rx_desc_queue ++*/ ++static void ++acxpci_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start) ++{ ++ rxdesc_t *rxdesc; ++ u32 mem_offs; ++ int i; ++ ++ FN_ENTER; ++ ++ /* done by memset: adev->rx_tail = 0; */ ++ ++ /* ACX111 doesn't need any further config: preconfigures itself. ++ * Simply print ring buffer for debugging */ ++ if (IS_ACX111(adev)) { ++ /* rxdesc_start already set here */ ++ ++ adev->rxdesc_start = (rxdesc_t *) ((u8 *)adev->iobase2 + rx_queue_start); ++ ++ rxdesc = adev->rxdesc_start; ++ for (i = 0; i < RX_CNT; i++) { ++ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc); ++ rxdesc = adev->rxdesc_start = (rxdesc_t *) ++ (adev->iobase2 + acx2cpu(rxdesc->pNextDesc)); ++ } ++ } else { ++ /* we didn't pre-calculate rxdesc_start in case of ACX100 */ ++ /* rxdesc_start should be right AFTER Tx pool */ ++ adev->rxdesc_start = (rxdesc_t *) ++ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t))); ++ /* NB: sizeof(txdesc_t) above is valid because we know ++ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere! ++ ** acx111's txdesc is larger! */ ++ ++ memset(adev->rxdesc_start, 0, RX_CNT * sizeof(*rxdesc)); ++ ++ /* loop over whole receive pool */ ++ rxdesc = adev->rxdesc_start; ++ mem_offs = rx_queue_start; ++ for (i = 0; i < RX_CNT; i++) { ++ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc); ++ rxdesc->Ctl_8 = DESC_CTL_RECLAIM | DESC_CTL_AUTODMA; ++ /* point to next rxdesc */ ++ rxdesc->pNextDesc = cpu2acx(mem_offs + sizeof(*rxdesc)); ++ /* go to the next one */ ++ mem_offs += sizeof(*rxdesc); ++ rxdesc++; ++ } ++ /* go to the last one */ ++ rxdesc--; ++ ++ /* and point to the first making it a ring buffer */ ++ rxdesc->pNextDesc = cpu2acx(rx_queue_start); ++ } ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxpci_create_desc_queues ++*/ ++void ++acxpci_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start) ++{ ++ acxpci_create_tx_desc_queue(adev, tx_queue_start); ++ acxpci_create_rx_desc_queue(adev, rx_queue_start); ++} ++ ++ ++/*************************************************************** ++** acxpci_s_proc_diag_output ++*/ ++char* ++acxpci_s_proc_diag_output(char *p, acx_device_t *adev) ++{ ++ const char *rtl, *thd, *ttl; ++ rxhostdesc_t *rxhostdesc; ++ txdesc_t *txdesc; ++ int i; ++ ++ FN_ENTER; ++ ++ p += sprintf(p, "** Rx buf **\n"); ++ rxhostdesc = adev->rxhostdesc_start; ++ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) { ++ rtl = (i == adev->rx_tail) ? " [tail]" : ""; ++ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN)) ++ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)) ) ++ p += sprintf(p, "%02u FULL%s\n", i, rtl); ++ else ++ p += sprintf(p, "%02u empty%s\n", i, rtl); ++ rxhostdesc++; ++ } ++ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free, ++ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running"); ++ txdesc = adev->txdesc_start; ++ if (txdesc) for (i = 0; i < TX_CNT; i++) { ++ thd = (i == adev->tx_head) ? " [head]" : ""; ++ ttl = (i == adev->tx_tail) ? " [tail]" : ""; ++ if (txdesc->Ctl_8 & DESC_CTL_ACXDONE) ++ p += sprintf(p, "%02u free (%02X)%s%s\n", i, txdesc->Ctl_8, thd, ttl); ++ else ++ p += sprintf(p, "%02u tx (%02X)%s%s\n", i, txdesc->Ctl_8, thd, ttl); ++ txdesc = advance_txdesc(adev, txdesc, 1); ++ } ++ p += sprintf(p, ++ "\n" ++ "** PCI data **\n" ++ "txbuf_start %p, txbuf_area_size %u, txbuf_startphy %08llx\n" ++ "txdesc_size %u, txdesc_start %p\n" ++ "txhostdesc_start %p, txhostdesc_area_size %u, txhostdesc_startphy %08llx\n" ++ "rxdesc_start %p\n" ++ "rxhostdesc_start %p, rxhostdesc_area_size %u, rxhostdesc_startphy %08llx\n" ++ "rxbuf_start %p, rxbuf_area_size %u, rxbuf_startphy %08llx\n", ++ adev->txbuf_start, adev->txbuf_area_size, ++ (unsigned long long)adev->txbuf_startphy, ++ adev->txdesc_size, adev->txdesc_start, ++ adev->txhostdesc_start, adev->txhostdesc_area_size, ++ (unsigned long long)adev->txhostdesc_startphy, ++ adev->rxdesc_start, ++ adev->rxhostdesc_start, adev->rxhostdesc_area_size, ++ (unsigned long long)adev->rxhostdesc_startphy, ++ adev->rxbuf_start, adev->rxbuf_area_size, ++ (unsigned long long)adev->rxbuf_startphy); ++ ++ FN_EXIT0; ++ return p; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acxpci_proc_eeprom_output(char *buf, acx_device_t *adev) ++{ ++ char *p = buf; ++ int i; ++ ++ FN_ENTER; ++ ++ for (i = 0; i < 0x400; i++) { ++ acxpci_read_eeprom_byte(adev, i, p++); ++ } ++ ++ FN_EXIT1(p - buf); ++ return p - buf; ++} ++ ++ ++/*********************************************************************** ++*/ ++void ++acxpci_set_interrupt_mask(acx_device_t *adev) ++{ ++ if (IS_ACX111(adev)) { ++ adev->irq_mask = (u16) ~(0 ++ /* | HOST_INT_RX_DATA */ ++ | HOST_INT_TX_COMPLETE ++ /* | HOST_INT_TX_XFER */ ++ | HOST_INT_RX_COMPLETE ++ /* | HOST_INT_DTIM */ ++ /* | HOST_INT_BEACON */ ++ /* | HOST_INT_TIMER */ ++ /* | HOST_INT_KEY_NOT_FOUND */ ++ | HOST_INT_IV_ICV_FAILURE ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ /* | HOST_INT_OVERFLOW */ ++ /* | HOST_INT_PROCESS_ERROR */ ++ | HOST_INT_SCAN_COMPLETE ++ | HOST_INT_FCS_THRESHOLD ++ /* | HOST_INT_UNKNOWN */ ++ ); ++ /* Or else acx100 won't signal cmd completion, right? */ ++ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */ ++ } else { ++ adev->irq_mask = (u16) ~(0 ++ /* | HOST_INT_RX_DATA */ ++ | HOST_INT_TX_COMPLETE ++ /* | HOST_INT_TX_XFER */ ++ | HOST_INT_RX_COMPLETE ++ /* | HOST_INT_DTIM */ ++ /* | HOST_INT_BEACON */ ++ /* | HOST_INT_TIMER */ ++ /* | HOST_INT_KEY_NOT_FOUND */ ++ /* | HOST_INT_IV_ICV_FAILURE */ ++ | HOST_INT_CMD_COMPLETE ++ | HOST_INT_INFO ++ /* | HOST_INT_OVERFLOW */ ++ /* | HOST_INT_PROCESS_ERROR */ ++ | HOST_INT_SCAN_COMPLETE ++ /* | HOST_INT_FCS_THRESHOLD */ ++ /* | HOST_INT_UNKNOWN */ ++ ); ++ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */ ++ } ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acx100pci_s_set_tx_level(acx_device_t *adev, u8 level_dbm) ++{ ++ /* since it can be assumed that at least the Maxim radio has a ++ * maximum power output of 20dBm and since it also can be ++ * assumed that these values drive the DAC responsible for ++ * setting the linear Tx level, I'd guess that these values ++ * should be the corresponding linear values for a dBm value, ++ * in other words: calculate the values from that formula: ++ * Y [dBm] = 10 * log (X [mW]) ++ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm) ++ * and you're done... ++ * Hopefully that's ok, but you never know if we're actually ++ * right... (especially since Windows XP doesn't seem to show ++ * actual Tx dBm values :-P) */ ++ ++ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the ++ * values are EXACTLY mW!!! Not sure about RFMD and others, ++ * though... */ ++ static const u8 dbm2val_maxim[21] = { ++ 63, 63, 63, 62, ++ 61, 61, 60, 60, ++ 59, 58, 57, 55, ++ 53, 50, 47, 43, ++ 38, 31, 23, 13, ++ 0 ++ }; ++ static const u8 dbm2val_rfmd[21] = { ++ 0, 0, 0, 1, ++ 2, 2, 3, 3, ++ 4, 5, 6, 8, ++ 10, 13, 16, 20, ++ 25, 32, 41, 50, ++ 63 ++ }; ++ const u8 *table; ++ ++ switch (adev->radio_type) { ++ case RADIO_MAXIM_0D: ++ table = &dbm2val_maxim[0]; ++ break; ++ case RADIO_RFMD_11: ++ case RADIO_RALINK_15: ++ table = &dbm2val_rfmd[0]; ++ break; ++ default: ++ printk("%s: unknown/unsupported radio type, " ++ "cannot modify tx power level yet!\n", ++ adev->ndev->name); ++ return NOT_OK; ++ } ++ printk("%s: changing radio power level to %u dBm (%u)\n", ++ adev->ndev->name, level_dbm, table[level_dbm]); ++ acxpci_s_write_phy_reg(adev, 0x11, table[level_dbm]); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** Data for init_module/cleanup_module ++*/ ++static const struct pci_device_id ++acxpci_id_tbl[] __devinitdata = { ++ { ++ .vendor = PCI_VENDOR_ID_TI, ++ .device = PCI_DEVICE_ID_TI_TNETW1100A, ++ .subvendor = PCI_ANY_ID, ++ .subdevice = PCI_ANY_ID, ++ .driver_data = CHIPTYPE_ACX100, ++ }, ++ { ++ .vendor = PCI_VENDOR_ID_TI, ++ .device = PCI_DEVICE_ID_TI_TNETW1100B, ++ .subvendor = PCI_ANY_ID, ++ .subdevice = PCI_ANY_ID, ++ .driver_data = CHIPTYPE_ACX100, ++ }, ++ { ++ .vendor = PCI_VENDOR_ID_TI, ++ .device = PCI_DEVICE_ID_TI_TNETW1130, ++ .subvendor = PCI_ANY_ID, ++ .subdevice = PCI_ANY_ID, ++ .driver_data = CHIPTYPE_ACX111, ++ }, ++ { ++ .vendor = 0, ++ .device = 0, ++ .subvendor = 0, ++ .subdevice = 0, ++ .driver_data = 0, ++ } ++}; ++ ++MODULE_DEVICE_TABLE(pci, acxpci_id_tbl); ++ ++/* FIXME: checks should be removed once driver is included in the kernel */ ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 11) ++/* pci_name() got introduced at start of 2.6.x, ++ * got mandatory (slot_name member removed) in 2.6.11-bk1 */ ++#define pci_name(x) x->slot_name ++#endif ++ ++static struct pci_driver ++acxpci_drv_id = { ++ .name = "acx_pci", ++ .id_table = acxpci_id_tbl, ++ .probe = acxpci_e_probe, ++ .remove = __devexit_p(acxpci_e_remove), ++#ifdef CONFIG_PM ++ .suspend = acxpci_e_suspend, ++ .resume = acxpci_e_resume ++#endif /* CONFIG_PM */ ++}; ++ ++ ++/*********************************************************************** ++** acxpci_e_init_module ++** ++** Module initialization routine, called once at module load time ++*/ ++int __init ++acxpci_e_init_module(void) ++{ ++ int res; ++ ++ FN_ENTER; ++ ++#if (ACX_IO_WIDTH==32) ++ printk("acx: compiled to use 32bit I/O access. " ++ "I/O timing issues might occur, such as " ++ "non-working firmware upload. Report them\n"); ++#else ++ printk("acx: compiled to use 16bit I/O access only " ++ "(compatibility mode)\n"); ++#endif ++ ++#ifdef __LITTLE_ENDIAN ++#define ENDIANNESS_STRING "running on a little-endian CPU\n" ++#else ++#define ENDIANNESS_STRING "running on a BIG-ENDIAN CPU\n" ++#endif ++ log(L_INIT, ++ ENDIANNESS_STRING ++ "PCI module " ACX_RELEASE " initialized, " ++ "waiting for cards to probe...\n" ++ ); ++ ++ res = pci_register_driver(&acxpci_drv_id); ++ FN_EXIT1(res); ++ return res; ++} ++ ++ ++/*********************************************************************** ++** acxpci_e_cleanup_module ++** ++** Called at module unload time. This is our last chance to ++** clean up after ourselves. ++*/ ++void __exit ++acxpci_e_cleanup_module(void) ++{ ++ FN_ENTER; ++ ++ pci_unregister_driver(&acxpci_drv_id); ++ ++ FN_EXIT0; ++} +Index: linux-2.6.23/drivers/net/wireless/acx/rx3000_acx.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/rx3000_acx.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,110 @@ ++/* ++ * WLAN (TI TNETW1100B) support in the HP iPAQ RX3000 ++ * ++ * Copyright (c) 2006 SDG Systems, LLC ++ * Copyright (c) 2006 Roman Moravcik ++ * ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file COPYING in the main directory of this archive for ++ * more details. ++ * ++ * Based on hx4700_acx.c ++ */ ++ ++ ++#include <linux/kernel.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++#include <linux/dpm.h> ++#include <linux/leds.h> ++ ++#include <asm/hardware.h> ++ ++#include <asm/arch/regs-gpio.h> ++#include <linux/mfd/asic3_base.h> ++#include <asm/arch/rx3000.h> ++#include <asm/arch/rx3000-asic3.h> ++#include <asm/io.h> ++ ++#include "acx_hw.h" ++ ++extern struct platform_device s3c_device_asic3; ++ ++static int rx3000_wlan_start(void) ++{ ++ DPM_DEBUG("rx3000_acx: Turning on\n"); ++ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, ASIC3_GPB3); ++ mdelay(20); ++ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC13, ASIC3_GPC13); ++ mdelay(20); ++ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC11, ASIC3_GPC11); ++ mdelay(100); ++ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, ASIC3_GPB3); ++ mdelay(20); ++ s3c2410_gpio_cfgpin(S3C2410_GPA15, S3C2410_GPA15_nGCS4); ++ mdelay(100); ++ s3c2410_gpio_setpin(S3C2410_GPA11, 0); ++ mdelay(50); ++ s3c2410_gpio_setpin(S3C2410_GPA11, 1); ++ led_trigger_event_shared(rx3000_radio_trig, LED_FULL); ++ return 0; ++} ++ ++static int rx3000_wlan_stop(void) ++{ ++ DPM_DEBUG("rx3000_acx: Turning off\n"); ++ s3c2410_gpio_setpin(S3C2410_GPA15, 1); ++ s3c2410_gpio_cfgpin(S3C2410_GPA15, S3C2410_GPA15_OUT); ++ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, 0); ++ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC13, 0); ++ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC11, 0); ++ led_trigger_event_shared(rx3000_radio_trig, LED_OFF); ++ return 0; ++} ++ ++static struct resource acx_resources[] = { ++ [0] = { ++ .start = RX3000_PA_WLAN, ++ .end = RX3000_PA_WLAN + 0x20, ++ .flags = IORESOURCE_MEM, ++ }, ++ [1] = { ++ .start = IRQ_EINT16, ++ .end = IRQ_EINT16, ++ .flags = IORESOURCE_IRQ, ++ }, ++}; ++ ++static struct acx_hardware_data acx_data = { ++ .start_hw = rx3000_wlan_start, ++ .stop_hw = rx3000_wlan_stop, ++}; ++ ++static struct platform_device acx_device = { ++ .name = "acx-mem", ++ .dev = { ++ .platform_data = &acx_data, ++ }, ++ .num_resources = ARRAY_SIZE(acx_resources), ++ .resource = acx_resources, ++}; ++ ++static int __init rx3000_wlan_init(void) ++{ ++ printk("rx3000_wlan_init: acx-mem platform_device_register\n"); ++ return platform_device_register(&acx_device); ++} ++ ++ ++static void __exit rx3000_wlan_exit(void) ++{ ++ platform_device_unregister(&acx_device); ++} ++ ++module_init(rx3000_wlan_init); ++module_exit(rx3000_wlan_exit); ++ ++MODULE_AUTHOR("Todd Blumer <todd@sdgsystems.com>, Roman Moravcik <roman.moravcik@gmail.com>"); ++MODULE_DESCRIPTION("WLAN driver for HP iPAQ RX3000"); ++MODULE_LICENSE("GPL"); ++ +Index: linux-2.6.23/drivers/net/wireless/acx/setrate.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/setrate.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,213 @@ ++/* TODO: stop #including, move into wireless.c ++ * until then, keep in sync copies in prism54/ and acx/ dirs ++ * code+data size: less than 1k */ ++ ++enum { ++ DOT11_RATE_1, ++ DOT11_RATE_2, ++ DOT11_RATE_5, ++ DOT11_RATE_11, ++ DOT11_RATE_22, ++ DOT11_RATE_33, ++ DOT11_RATE_6, ++ DOT11_RATE_9, ++ DOT11_RATE_12, ++ DOT11_RATE_18, ++ DOT11_RATE_24, ++ DOT11_RATE_36, ++ DOT11_RATE_48, ++ DOT11_RATE_54 ++}; ++enum { ++ DOT11_MOD_DBPSK, ++ DOT11_MOD_DQPSK, ++ DOT11_MOD_CCK, ++ DOT11_MOD_OFDM, ++ DOT11_MOD_CCKOFDM, ++ DOT11_MOD_PBCC ++}; ++static const u8 ratelist[] = { 1,2,5,11,22,33,6,9,12,18,24,36,48,54 }; ++static const u8 dot11ratebyte[] = { 1*2,2*2,11,11*2,22*2,33*2,6*2,9*2,12*2,18*2,24*2,36*2,48*2,54*2 }; ++static const u8 default_modulation[] = { ++ DOT11_MOD_DBPSK, ++ DOT11_MOD_DQPSK, ++ DOT11_MOD_CCK, ++ DOT11_MOD_CCK, ++ DOT11_MOD_PBCC, ++ DOT11_MOD_PBCC, ++ DOT11_MOD_OFDM, ++ DOT11_MOD_OFDM, ++ DOT11_MOD_OFDM, ++ DOT11_MOD_OFDM, ++ DOT11_MOD_OFDM, ++ DOT11_MOD_OFDM, ++ DOT11_MOD_OFDM, ++ DOT11_MOD_OFDM ++}; ++ ++static /* TODO: remove 'static' when moved to wireless.c */ ++int ++rate_mbit2enum(int n) { ++ int i=0; ++ while(i<sizeof(ratelist)) { ++ if(n==ratelist[i]) return i; ++ i++; ++ } ++ return -EINVAL; ++} ++ ++static int ++get_modulation(int r_enum, char suffix) { ++ if(suffix==',' || suffix==' ' || suffix=='\0') { ++ /* could shorten default_mod by 8 bytes: ++ if(r_enum>=DOT11_RATE_6) return DOT11_MOD_OFDM; */ ++ return default_modulation[r_enum]; ++ } ++ if(suffix=='c') { ++ if(r_enum<DOT11_RATE_5 || r_enum>DOT11_RATE_11) return -EINVAL; ++ return DOT11_MOD_CCK; ++ } ++ if(suffix=='p') { ++ if(r_enum<DOT11_RATE_5 || r_enum>DOT11_RATE_33) return -EINVAL; ++ return DOT11_MOD_PBCC; ++ } ++ if(suffix=='o') { ++ if(r_enum<DOT11_RATE_6) return -EINVAL; ++ return DOT11_MOD_OFDM; ++ } ++ if(suffix=='d') { ++ if(r_enum<DOT11_RATE_6) return -EINVAL; ++ return DOT11_MOD_CCKOFDM; ++ } ++ return -EINVAL; ++} ++ ++#ifdef UNUSED ++static int ++fill_ratevector(const char **pstr, u8 *vector, int size, ++ int (*supported)(int mbit, int mod, void *opaque), void *opaque, int or_mask) ++{ ++ unsigned long rate_mbit; ++ int rate_enum,mod; ++ const char *str = *pstr; ++ char c; ++ ++ do { ++ rate_mbit = simple_strtoul(str, (char**)&str, 10); ++ if(rate_mbit>INT_MAX) return -EINVAL; ++ ++ rate_enum = rate_mbit2enum(rate_mbit); ++ if(rate_enum<0) return rate_enum; ++ ++ c = *str; ++ mod = get_modulation(rate_enum, c); ++ if(mod<0) return mod; ++ ++ if(c>='a' && c<='z') c = *++str; ++ if(c!=',' && c!=' ' && c!='\0') return -EINVAL; ++ ++ if(supported) { ++ int r = supported(rate_mbit, mod, opaque); ++ if(r) return r; ++ } ++ ++ *vector++ = dot11ratebyte[rate_enum] | or_mask; ++ ++ size--; ++ str++; ++ } while(size>0 && c==','); ++ ++ if(size<1) return -E2BIG; ++ *vector=0; /* TODO: sort, remove dups? */ ++ ++ *pstr = str-1; ++ return 0; ++} ++ ++static /* TODO: remove 'static' when moved to wireless.c */ ++int ++fill_ratevectors(const char *str, u8 *brate, u8 *orate, int size, ++ int (*supported)(int mbit, int mod, void *opaque), void *opaque) ++{ ++ int r; ++ ++ r = fill_ratevector(&str, brate, size, supported, opaque, 0x80); ++ if(r) return r; ++ ++ orate[0] = 0; ++ if(*str==' ') { ++ str++; ++ r = fill_ratevector(&str, orate, size, supported, opaque, 0); ++ if(r) return r; ++ /* TODO: sanitize, e.g. remove/error on rates already in basic rate set? */ ++ } ++ if(*str) ++ return -EINVAL; ++ ++ return 0; ++} ++#endif ++ ++/* TODO: use u64 masks? */ ++ ++static int ++fill_ratemask(const char **pstr, u32* mask, ++ int (*supported)(int mbit, int mod,void *opaque), ++ u32 (*gen_mask)(int mbit, int mod,void *opaque), ++ void *opaque) ++{ ++ unsigned long rate_mbit; ++ int rate_enum,mod; ++ u32 m = 0; ++ const char *str = *pstr; ++ char c; ++ ++ do { ++ rate_mbit = simple_strtoul(str, (char**)&str, 10); ++ if(rate_mbit>INT_MAX) return -EINVAL; ++ ++ rate_enum = rate_mbit2enum(rate_mbit); ++ if(rate_enum<0) return rate_enum; ++ ++ c = *str; ++ mod = get_modulation(rate_enum, c); ++ if(mod<0) return mod; ++ ++ if(c>='a' && c<='z') c = *++str; ++ if(c!=',' && c!=' ' && c!='\0') return -EINVAL; ++ ++ if(supported) { ++ int r = supported(rate_mbit, mod, opaque); ++ if(r) return r; ++ } ++ ++ m |= gen_mask(rate_mbit, mod, opaque); ++ str++; ++ } while(c==','); ++ ++ *pstr = str-1; ++ *mask |= m; ++ return 0; ++} ++ ++static /* TODO: remove 'static' when moved to wireless.c */ ++int ++fill_ratemasks(const char *str, u32 *bmask, u32 *omask, ++ int (*supported)(int mbit, int mod,void *opaque), ++ u32 (*gen_mask)(int mbit, int mod,void *opaque), ++ void *opaque) ++{ ++ int r; ++ ++ r = fill_ratemask(&str, bmask, supported, gen_mask, opaque); ++ if(r) return r; ++ ++ if(*str==' ') { ++ str++; ++ r = fill_ratemask(&str, omask, supported, gen_mask, opaque); ++ if(r) return r; ++ } ++ if(*str) ++ return -EINVAL; ++ return 0; ++} +Index: linux-2.6.23/drivers/net/wireless/acx/usb.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/usb.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,1922 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++/*********************************************************************** ++** USB support for TI ACX100 based devices. Many parts are taken from ++** the PCI driver. ++** ++** Authors: ++** Martin Wawro <martin.wawro AT uni-dortmund.de> ++** Andreas Mohr <andi AT lisas.de> ++** ++** LOCKING ++** callback functions called by USB core are running in interrupt context ++** and thus have names with _i_. ++*/ ++#define ACX_USB 1 ++ ++#include <linux/version.h> ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) ++#include <linux/config.h> ++#endif ++#include <linux/types.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/kernel.h> ++#include <linux/usb.h> ++#include <linux/netdevice.h> ++#include <linux/rtnetlink.h> ++#include <linux/etherdevice.h> ++#include <linux/wireless.h> ++#include <net/iw_handler.h> ++#include <linux/vmalloc.h> ++ ++#include "acx.h" ++ ++ ++/*********************************************************************** ++*/ ++/* number of endpoints of an interface */ ++#define NUM_EP(intf) (intf)->altsetting[0].desc.bNumEndpoints ++#define EP(intf, nr) (intf)->altsetting[0].endpoint[(nr)].desc ++#define GET_DEV(udev) usb_get_dev((udev)) ++#define PUT_DEV(udev) usb_put_dev((udev)) ++#define SET_NETDEV_OWNER(ndev, owner) /* not needed anymore ??? */ ++ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14) ++/* removed in 2.6.14. We will use fake value for now */ ++#define URB_ASYNC_UNLINK 0 ++#endif ++ ++ ++/*********************************************************************** ++*/ ++/* ACX100 (TNETW1100) USB device: D-Link DWL-120+ */ ++#define ACX100_VENDOR_ID 0x2001 ++#define ACX100_PRODUCT_ID_UNBOOTED 0x3B01 ++#define ACX100_PRODUCT_ID_BOOTED 0x3B00 ++ ++/* TNETW1450 USB devices */ ++#define VENDOR_ID_DLINK 0x07b8 /* D-Link Corp. */ ++#define PRODUCT_ID_WUG2400 0xb21a /* AboCom WUG2400 or SafeCom SWLUT-54125 */ ++#define VENDOR_ID_AVM_GMBH 0x057c ++#define PRODUCT_ID_AVM_WLAN_USB 0x5601 ++#define PRODUCT_ID_AVM_WLAN_USB_si 0x6201 /* "self install" named Version: driver kills kernel on inbound scans from fritz box ??? */ ++#define VENDOR_ID_ZCOM 0x0cde ++#define PRODUCT_ID_ZCOM_XG750 0x0017 /* not tested yet */ ++#define VENDOR_ID_TI 0x0451 ++#define PRODUCT_ID_TI_UNKNOWN 0x60c5 /* not tested yet */ ++ ++#define ACX_USB_CTRL_TIMEOUT 5500 /* steps in ms */ ++ ++/* Buffer size for fw upload, same for both ACX100 USB and TNETW1450 */ ++#define USB_RWMEM_MAXLEN 2048 ++ ++/* The number of bulk URBs to use */ ++#define ACX_TX_URB_CNT 8 ++#define ACX_RX_URB_CNT 2 ++ ++/* Should be sent to the bulkout endpoint */ ++#define ACX_USB_REQ_UPLOAD_FW 0x10 ++#define ACX_USB_REQ_ACK_CS 0x11 ++#define ACX_USB_REQ_CMD 0x12 ++ ++/*********************************************************************** ++** Prototypes ++*/ ++static int acxusb_e_probe(struct usb_interface *, const struct usb_device_id *); ++static void acxusb_e_disconnect(struct usb_interface *); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++static void acxusb_i_complete_tx(struct urb *); ++static void acxusb_i_complete_rx(struct urb *); ++#else ++static void acxusb_i_complete_tx(struct urb *, struct pt_regs *); ++static void acxusb_i_complete_rx(struct urb *, struct pt_regs *); ++#endif ++static int acxusb_e_open(struct net_device *); ++static int acxusb_e_close(struct net_device *); ++static void acxusb_i_set_rx_mode(struct net_device *); ++static int acxusb_boot(struct usb_device *, int is_tnetw1450, int *radio_type); ++ ++static void acxusb_l_poll_rx(acx_device_t *adev, usb_rx_t* rx); ++ ++static void acxusb_i_tx_timeout(struct net_device *); ++ ++/* static void dump_device(struct usb_device *); */ ++/* static void dump_device_descriptor(struct usb_device_descriptor *); */ ++/* static void dump_config_descriptor(struct usb_config_descriptor *); */ ++ ++/*********************************************************************** ++** Module Data ++*/ ++#define TXBUFSIZE sizeof(usb_txbuffer_t) ++/* ++ * Now, this is just plain lying, but the device insists in giving us ++ * huge packets. We supply extra space after rxbuffer. Need to understand ++ * it better... ++ */ ++#define RXBUFSIZE (sizeof(rxbuffer_t) + \ ++ (sizeof(usb_rx_t) - sizeof(struct usb_rx_plain))) ++ ++static const struct usb_device_id ++acxusb_ids[] = { ++ { USB_DEVICE(ACX100_VENDOR_ID, ACX100_PRODUCT_ID_BOOTED) }, ++ { USB_DEVICE(ACX100_VENDOR_ID, ACX100_PRODUCT_ID_UNBOOTED) }, ++ { USB_DEVICE(VENDOR_ID_DLINK, PRODUCT_ID_WUG2400) }, ++ { USB_DEVICE(VENDOR_ID_AVM_GMBH, PRODUCT_ID_AVM_WLAN_USB) }, ++ { USB_DEVICE(VENDOR_ID_AVM_GMBH, PRODUCT_ID_AVM_WLAN_USB_si) }, ++ { USB_DEVICE(VENDOR_ID_ZCOM, PRODUCT_ID_ZCOM_XG750) }, ++ { USB_DEVICE(VENDOR_ID_TI, PRODUCT_ID_TI_UNKNOWN) }, ++ {} ++}; ++ ++MODULE_DEVICE_TABLE(usb, acxusb_ids); ++ ++/* USB driver data structure as required by the kernel's USB core */ ++static struct usb_driver ++acxusb_driver = { ++ .name = "acx_usb", ++ .probe = acxusb_e_probe, ++ .disconnect = acxusb_e_disconnect, ++ .id_table = acxusb_ids ++}; ++ ++ ++/*********************************************************************** ++** USB helper ++** ++** ldd3 ch13 says: ++** When the function is usb_kill_urb, the urb lifecycle is stopped. This ++** function is usually used when the device is disconnected from the system, ++** in the disconnect callback. For some drivers, the usb_unlink_urb function ++** should be used to tell the USB core to stop an urb. This function does not ++** wait for the urb to be fully stopped before returning to the caller. ++** This is useful for stoppingthe urb while in an interrupt handler or when ++** a spinlock is held, as waiting for a urb to fully stop requires the ability ++** for the USB core to put the calling process to sleep. This function requires ++** that the URB_ASYNC_UNLINK flag value be set in the urb that is being asked ++** to be stopped in order to work properly. ++** ++** (URB_ASYNC_UNLINK is obsolete, usb_unlink_urb will always be ++** asynchronous while usb_kill_urb is synchronous and should be called ++** directly (drivers/usb/core/urb.c)) ++** ++** In light of this, timeout is just for paranoid reasons... ++* ++* Actually, it's useful for debugging. If we reach timeout, we're doing ++* something wrong with the urbs. ++*/ ++static void ++acxusb_unlink_urb(struct urb* urb) ++{ ++ if (!urb) ++ return; ++ ++ if (urb->status == -EINPROGRESS) { ++ int timeout = 10; ++ ++ usb_unlink_urb(urb); ++ while (--timeout && urb->status == -EINPROGRESS) { ++ mdelay(1); ++ } ++ if (!timeout) { ++ printk("acx_usb: urb unlink timeout!\n"); ++ } ++ } ++} ++ ++ ++/*********************************************************************** ++** EEPROM and PHY read/write helpers ++*/ ++/*********************************************************************** ++** acxusb_s_read_phy_reg ++*/ ++int ++acxusb_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf) ++{ ++ /* mem_read_write_t mem; */ ++ ++ FN_ENTER; ++ ++ printk("%s doesn't seem to work yet, disabled.\n", __func__); ++ ++ /* ++ mem.addr = cpu_to_le16(reg); ++ mem.type = cpu_to_le16(0x82); ++ mem.len = cpu_to_le32(4); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_MEM_READ, &mem, sizeof(mem)); ++ *charbuf = mem.data; ++ log(L_DEBUG, "read radio PHY[0x%04X]=0x%02X\n", reg, *charbuf); ++ */ ++ ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++*/ ++int ++acxusb_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value) ++{ ++ mem_read_write_t mem; ++ ++ FN_ENTER; ++ ++ mem.addr = cpu_to_le16(reg); ++ mem.type = cpu_to_le16(0x82); ++ mem.len = cpu_to_le32(4); ++ mem.data = value; ++ acx_s_issue_cmd(adev, ACX1xx_CMD_MEM_WRITE, &mem, sizeof(mem)); ++ log(L_DEBUG, "write radio PHY[0x%04X]=0x%02X\n", reg, value); ++ ++ FN_EXIT1(OK); ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acxusb_s_issue_cmd_timeo ++** Excecutes a command in the command mailbox ++** ++** buffer = a pointer to the data. ++** The data must not include 4 byte command header ++*/ ++ ++/* TODO: ideally we shall always know how much we need ++** and this shall be 0 */ ++#define BOGUS_SAFETY_PADDING 0x40 ++ ++#undef FUNC ++#define FUNC "issue_cmd" ++ ++#if !ACX_DEBUG ++int ++acxusb_s_issue_cmd_timeo( ++ acx_device_t *adev, ++ unsigned cmd, ++ void *buffer, ++ unsigned buflen, ++ unsigned timeout) ++{ ++#else ++int ++acxusb_s_issue_cmd_timeo_debug( ++ acx_device_t *adev, ++ unsigned cmd, ++ void *buffer, ++ unsigned buflen, ++ unsigned timeout, ++ const char* cmdstr) ++{ ++#endif ++ /* USB ignores timeout param */ ++ ++ struct usb_device *usbdev; ++ struct { ++ u16 cmd; ++ u16 status; ++ u8 data[1]; ++ } ACX_PACKED *loc; ++ const char *devname; ++ int acklen, blocklen, inpipe, outpipe; ++ int cmd_status; ++ int result; ++ ++ FN_ENTER; ++ ++ devname = adev->ndev->name; ++ /* no "wlan%%d: ..." please */ ++ if (!devname || !devname[0] || devname[4]=='%') ++ devname = "acx"; ++ ++ log(L_CTL, FUNC"(cmd:%s,buflen:%u,type:0x%04X)\n", ++ cmdstr, buflen, ++ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1); ++ ++ loc = kmalloc(buflen + 4 + BOGUS_SAFETY_PADDING, GFP_KERNEL); ++ if (!loc) { ++ printk("%s: "FUNC"(): no memory for data buffer\n", devname); ++ goto bad; ++ } ++ ++ /* get context from acx_device */ ++ usbdev = adev->usbdev; ++ ++ /* check which kind of command was issued */ ++ loc->cmd = cpu_to_le16(cmd); ++ loc->status = 0; ++ ++/* NB: buflen == frmlen + 4 ++** ++** Interrogate: write 8 bytes: (cmd,status,rid,frmlen), then ++** read (cmd,status,rid,frmlen,data[frmlen]) back ++** ++** Configure: write (cmd,status,rid,frmlen,data[frmlen]) ++** ++** Possibly bogus special handling of ACX1xx_IE_SCAN_STATUS removed ++*/ ++ ++ /* now write the parameters of the command if needed */ ++ acklen = buflen + 4 + BOGUS_SAFETY_PADDING; ++ blocklen = buflen; ++ if (buffer && buflen) { ++ /* if it's an INTERROGATE command, just pass the length ++ * of parameters to read, as data */ ++ if (cmd == ACX1xx_CMD_INTERROGATE) { ++ blocklen = 4; ++ acklen = buflen + 4; ++ } ++ memcpy(loc->data, buffer, blocklen); ++ } ++ blocklen += 4; /* account for cmd,status */ ++ ++ /* obtain the I/O pipes */ ++ outpipe = usb_sndctrlpipe(usbdev, 0); ++ inpipe = usb_rcvctrlpipe(usbdev, 0); ++ log(L_CTL, "ctrl inpipe=0x%X outpipe=0x%X\n", inpipe, outpipe); ++ log(L_CTL, "sending USB control msg (out) (blocklen=%d)\n", blocklen); ++ if (acx_debug & L_DATA) ++ acx_dump_bytes(loc, blocklen); ++ ++ result = usb_control_msg(usbdev, outpipe, ++ ACX_USB_REQ_CMD, /* request */ ++ USB_TYPE_VENDOR|USB_DIR_OUT, /* requesttype */ ++ 0, /* value */ ++ 0, /* index */ ++ loc, /* dataptr */ ++ blocklen, /* size */ ++ ACX_USB_CTRL_TIMEOUT /* timeout in ms */ ++ ); ++ ++ if (result == -ENODEV) { ++ log(L_CTL, "no device present (unplug?)\n"); ++ goto good; ++ } ++ ++ log(L_CTL, "wrote %d bytes\n", result); ++ if (result < 0) { ++ goto bad; ++ } ++ ++ /* check for device acknowledge */ ++ log(L_CTL, "sending USB control msg (in) (acklen=%d)\n", acklen); ++ loc->status = 0; /* delete old status flag -> set to IDLE */ ++ /* shall we zero out the rest? */ ++ result = usb_control_msg(usbdev, inpipe, ++ ACX_USB_REQ_CMD, /* request */ ++ USB_TYPE_VENDOR|USB_DIR_IN, /* requesttype */ ++ 0, /* value */ ++ 0, /* index */ ++ loc, /* dataptr */ ++ acklen, /* size */ ++ ACX_USB_CTRL_TIMEOUT /* timeout in ms */ ++ ); ++ if (result < 0) { ++ printk("%s: "FUNC"(): USB read error %d\n", devname, result); ++ goto bad; ++ } ++ if (acx_debug & L_CTL) { ++ printk("read %d bytes: ", result); ++ acx_dump_bytes(loc, result); ++ } ++ ++/* ++ check for result==buflen+4? Was seen: ++ ++interrogate(type:ACX100_IE_DOT11_ED_THRESHOLD,len:4) ++issue_cmd(cmd:ACX1xx_CMD_INTERROGATE,buflen:8,type:4111) ++ctrl inpipe=0x80000280 outpipe=0x80000200 ++sending USB control msg (out) (blocklen=8) ++01 00 00 00 0F 10 04 00 ++wrote 8 bytes ++sending USB control msg (in) (acklen=12) sizeof(loc->data ++read 4 bytes <==== MUST BE 12!! ++*/ ++ ++ cmd_status = le16_to_cpu(loc->status); ++ if (cmd_status != 1) { ++ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s)\n", ++ devname, cmd_status, acx_cmd_status_str(cmd_status)); ++ /* TODO: goto bad; ? */ ++ } ++ if ((cmd == ACX1xx_CMD_INTERROGATE) && buffer && buflen) { ++ memcpy(buffer, loc->data, buflen); ++ log(L_CTL, "response frame: cmd=0x%04X status=%d\n", ++ le16_to_cpu(loc->cmd), ++ cmd_status); ++ } ++good: ++ kfree(loc); ++ FN_EXIT1(OK); ++ return OK; ++bad: ++ /* Give enough info so that callers can avoid ++ ** printing their own diagnostic messages */ ++#if ACX_DEBUG ++ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr); ++#else ++ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd); ++#endif ++ dump_stack(); ++ kfree(loc); ++ FN_EXIT1(NOT_OK); ++ return NOT_OK; ++} ++ ++ ++/*********************************************************************** ++** acxusb_boot() ++** Inputs: ++** usbdev -> Pointer to kernel's usb_device structure ++** ++** Returns: ++** (int) Errorcode or 0 on success ++** ++** This function triggers the loading of the firmware image from harddisk ++** and then uploads the firmware to the USB device. After uploading the ++** firmware and transmitting the checksum, the device resets and appears ++** as a new device on the USB bus (the device we can finally deal with) ++*/ ++static inline int ++acxusb_fw_needs_padding(firmware_image_t *fw_image, unsigned int usb_maxlen) ++{ ++ unsigned int num_xfers = ((fw_image->size - 1) / usb_maxlen) + 1; ++ ++ return ((num_xfers % 2) == 0); ++} ++ ++static int ++acxusb_boot(struct usb_device *usbdev, int is_tnetw1450, int *radio_type) ++{ ++ char filename[sizeof("tiacx1NNusbcRR")]; ++ ++ firmware_image_t *fw_image = NULL; ++ char *usbbuf; ++ unsigned int offset; ++ unsigned int blk_len, inpipe, outpipe; ++ u32 num_processed; ++ u32 img_checksum, sum; ++ u32 file_size; ++ int result = -EIO; ++ int i; ++ ++ FN_ENTER; ++ ++ /* dump_device(usbdev); */ ++ ++ usbbuf = kmalloc(USB_RWMEM_MAXLEN, GFP_KERNEL); ++ if (!usbbuf) { ++ printk(KERN_ERR "acx: no memory for USB transfer buffer (%d bytes)\n", USB_RWMEM_MAXLEN); ++ result = -ENOMEM; ++ goto end; ++ } ++ if (is_tnetw1450) { ++ /* Obtain the I/O pipes */ ++ outpipe = usb_sndbulkpipe(usbdev, 1); ++ inpipe = usb_rcvbulkpipe(usbdev, 2); ++ ++ printk(KERN_DEBUG "wait for device ready\n"); ++ for (i = 0; i <= 2; i++) { ++ result = usb_bulk_msg(usbdev, inpipe, ++ usbbuf, ++ USB_RWMEM_MAXLEN, ++ &num_processed, ++ 2000 ++ ); ++ ++ if ((*(u32 *)&usbbuf[4] == 0x40000001) ++ && (*(u16 *)&usbbuf[2] == 0x1) ++ && ((*(u16 *)usbbuf & 0x3fff) == 0) ++ && ((*(u16 *)usbbuf & 0xc000) == 0xc000)) ++ break; ++ msleep(10); ++ } ++ if (i == 2) ++ goto fw_end; ++ ++ *radio_type = usbbuf[8]; ++ } else { ++ /* Obtain the I/O pipes */ ++ outpipe = usb_sndctrlpipe(usbdev, 0); ++ inpipe = usb_rcvctrlpipe(usbdev, 0); ++ ++ /* FIXME: shouldn't be hardcoded */ ++ *radio_type = RADIO_MAXIM_0D; ++ } ++ ++ snprintf(filename, sizeof(filename), "tiacx1%02dusbc%02X", ++ is_tnetw1450 * 11, *radio_type); ++ ++ fw_image = acx_s_read_fw(&usbdev->dev, filename, &file_size); ++ if (!fw_image) { ++ result = -EIO; ++ goto end; ++ } ++ log(L_INIT, "firmware size: %d bytes\n", file_size); ++ ++ img_checksum = le32_to_cpu(fw_image->chksum); ++ ++ if (is_tnetw1450) { ++ u8 cmdbuf[20]; ++ const u8 *p; ++ u8 need_padding; ++ u32 tmplen, val; ++ ++ memset(cmdbuf, 0, 16); ++ ++ need_padding = acxusb_fw_needs_padding(fw_image, USB_RWMEM_MAXLEN); ++ tmplen = need_padding ? file_size-4 : file_size-8; ++ *(u16 *)&cmdbuf[0] = 0xc000; ++ *(u16 *)&cmdbuf[2] = 0x000b; ++ *(u32 *)&cmdbuf[4] = tmplen; ++ *(u32 *)&cmdbuf[8] = file_size-8; ++ *(u32 *)&cmdbuf[12] = img_checksum; ++ ++ result = usb_bulk_msg(usbdev, outpipe, cmdbuf, 16, &num_processed, HZ); ++ if (result < 0) ++ goto fw_end; ++ ++ p = (const u8 *)&fw_image->size; ++ ++ /* first calculate checksum for image size part */ ++ sum = p[0]+p[1]+p[2]+p[3]; ++ p += 4; ++ ++ /* now continue checksum for firmware data part */ ++ tmplen = le32_to_cpu(fw_image->size); ++ for (i = 0; i < tmplen /* image size */; i++) { ++ sum += *p++; ++ } ++ ++ if (sum != le32_to_cpu(fw_image->chksum)) { ++ printk("acx: FATAL: firmware upload: " ++ "checksums don't match! " ++ "(0x%08x vs. 0x%08x)\n", ++ sum, fw_image->chksum); ++ goto fw_end; ++ } ++ ++ offset = 8; ++ while (offset < file_size) { ++ blk_len = file_size - offset; ++ if (blk_len > USB_RWMEM_MAXLEN) { ++ blk_len = USB_RWMEM_MAXLEN; ++ } ++ ++ log(L_INIT, "uploading firmware (%d bytes, offset=%d)\n", ++ blk_len, offset); ++ memcpy(usbbuf, ((u8 *)fw_image) + offset, blk_len); ++ ++ p = usbbuf; ++ for (i = 0; i < blk_len; i += 4) { ++ *(u32 *)p = be32_to_cpu(*(u32 *)p); ++ p += 4; ++ } ++ ++ result = usb_bulk_msg(usbdev, outpipe, usbbuf, blk_len, &num_processed, HZ); ++ if ((result < 0) || (num_processed != blk_len)) ++ goto fw_end; ++ offset += blk_len; ++ } ++ if (need_padding) { ++ printk(KERN_DEBUG "send padding\n"); ++ memset(usbbuf, 0, 4); ++ result = usb_bulk_msg(usbdev, outpipe, usbbuf, 4, &num_processed, HZ); ++ if ((result < 0) || (num_processed != 4)) ++ goto fw_end; ++ } ++ printk(KERN_DEBUG "read firmware upload result\n"); ++ memset(cmdbuf, 0, 20); /* additional memset */ ++ result = usb_bulk_msg(usbdev, inpipe, cmdbuf, 20, &num_processed, 2000); ++ if (result < 0) ++ goto fw_end; ++ if (*(u32 *)&cmdbuf[4] == 0x40000003) ++ goto fw_end; ++ if (*(u32 *)&cmdbuf[4]) ++ goto fw_end; ++ if (*(u16 *)&cmdbuf[16] != 1) ++ goto fw_end; ++ ++ val = *(u32 *)&cmdbuf[0]; ++ if ((val & 0x3fff) ++ || ((val & 0xc000) != 0xc000)) ++ goto fw_end; ++ ++ val = *(u32 *)&cmdbuf[8]; ++ if (val & 2) { ++ result = usb_bulk_msg(usbdev, inpipe, cmdbuf, 20, &num_processed, 2000); ++ if (result < 0) ++ goto fw_end; ++ val = *(u32 *)&cmdbuf[8]; ++ } ++ /* yup, no "else" here! */ ++ if (val & 1) { ++ memset(usbbuf, 0, 4); ++ result = usb_bulk_msg(usbdev, outpipe, usbbuf, 4, &num_processed, HZ); ++ if ((result < 0) || (!num_processed)) ++ goto fw_end; ++ } ++ ++ printk("TNETW1450 firmware upload successful!\n"); ++ result = 0; ++ goto end; ++fw_end: ++ result = -EIO; ++ goto end; ++ } else { ++ /* ACX100 USB */ ++ ++ /* now upload the firmware, slice the data into blocks */ ++ offset = 8; ++ while (offset < file_size) { ++ blk_len = file_size - offset; ++ if (blk_len > USB_RWMEM_MAXLEN) { ++ blk_len = USB_RWMEM_MAXLEN; ++ } ++ log(L_INIT, "uploading firmware (%d bytes, offset=%d)\n", ++ blk_len, offset); ++ memcpy(usbbuf, ((u8 *)fw_image) + offset, blk_len); ++ result = usb_control_msg(usbdev, outpipe, ++ ACX_USB_REQ_UPLOAD_FW, ++ USB_TYPE_VENDOR|USB_DIR_OUT, ++ (file_size - 8) & 0xffff, /* value */ ++ (file_size - 8) >> 16, /* index */ ++ usbbuf, /* dataptr */ ++ blk_len, /* size */ ++ 3000 /* timeout in ms */ ++ ); ++ offset += blk_len; ++ if (result < 0) { ++ printk(KERN_ERR "acx: error %d during upload " ++ "of firmware, aborting\n", result); ++ goto end; ++ } ++ } ++ ++ /* finally, send the checksum and reboot the device */ ++ /* does this trigger the reboot? */ ++ result = usb_control_msg(usbdev, outpipe, ++ ACX_USB_REQ_UPLOAD_FW, ++ USB_TYPE_VENDOR|USB_DIR_OUT, ++ img_checksum & 0xffff, /* value */ ++ img_checksum >> 16, /* index */ ++ NULL, /* dataptr */ ++ 0, /* size */ ++ 3000 /* timeout in ms */ ++ ); ++ if (result < 0) { ++ printk(KERN_ERR "acx: error %d during tx of checksum, " ++ "aborting\n", result); ++ goto end; ++ } ++ result = usb_control_msg(usbdev, inpipe, ++ ACX_USB_REQ_ACK_CS, ++ USB_TYPE_VENDOR|USB_DIR_IN, ++ img_checksum & 0xffff, /* value */ ++ img_checksum >> 16, /* index */ ++ usbbuf, /* dataptr */ ++ 8, /* size */ ++ 3000 /* timeout in ms */ ++ ); ++ if (result < 0) { ++ printk(KERN_ERR "acx: error %d during ACK of checksum, " ++ "aborting\n", result); ++ goto end; ++ } ++ if (*usbbuf != 0x10) { ++ printk(KERN_ERR "acx: invalid checksum?\n"); ++ result = -EINVAL; ++ goto end; ++ } ++ result = 0; ++ } ++ ++end: ++ vfree(fw_image); ++ kfree(usbbuf); ++ ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/* FIXME: maybe merge it with usual eeprom reading, into common code? */ ++static void ++acxusb_s_read_eeprom_version(acx_device_t *adev) ++{ ++ u8 eeprom_ver[0x8]; ++ ++ memset(eeprom_ver, 0, sizeof(eeprom_ver)); ++ acx_s_interrogate(adev, &eeprom_ver, ACX1FF_IE_EEPROM_VER); ++ ++ /* FIXME: which one of those values to take? */ ++ adev->eeprom_version = eeprom_ver[5]; ++} ++ ++ ++/* ++ * temporary helper function to at least fill important cfgopt members with ++ * useful replacement values until we figure out how one manages to fetch ++ * the configoption struct in the USB device case... ++ */ ++static int ++acxusb_s_fill_configoption(acx_device_t *adev) ++{ ++ adev->cfgopt_probe_delay = 200; ++ adev->cfgopt_dot11CCAModes = 4; ++ adev->cfgopt_dot11Diversity = 1; ++ adev->cfgopt_dot11ShortPreambleOption = 1; ++ adev->cfgopt_dot11PBCCOption = 1; ++ adev->cfgopt_dot11ChannelAgility = 0; ++ adev->cfgopt_dot11PhyType = 5; ++ adev->cfgopt_dot11TempType = 1; ++ return OK; ++} ++ ++ ++/*********************************************************************** ++** acxusb_e_probe() ++** ++** This function is invoked by the kernel's USB core whenever a new device is ++** attached to the system or the module is loaded. It is presented a usb_device ++** structure from which information regarding the device is obtained and evaluated. ++** In case this driver is able to handle one of the offered devices, it returns ++** a non-null pointer to a driver context and thereby claims the device. ++*/ ++ ++static void ++dummy_netdev_init(struct net_device *ndev) {} ++ ++static int ++acxusb_e_probe(struct usb_interface *intf, const struct usb_device_id *devID) ++{ ++ struct usb_device *usbdev = interface_to_usbdev(intf); ++ acx_device_t *adev = NULL; ++ struct net_device *ndev = NULL; ++ struct usb_config_descriptor *config; ++ struct usb_endpoint_descriptor *epdesc; ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++ struct usb_host_endpoint *ep; ++#endif ++ struct usb_interface_descriptor *ifdesc; ++ const char* msg; ++ int numconfigs, numfaces, numep; ++ int result = OK; ++ int i; ++ int radio_type; ++ /* this one needs to be more precise in case there appears a TNETW1450 from the same vendor */ ++ int is_tnetw1450 = (usbdev->descriptor.idVendor != ACX100_VENDOR_ID); ++ ++ FN_ENTER; ++ ++ if (is_tnetw1450) { ++ /* Boot the device (i.e. upload the firmware) */ ++ acxusb_boot(usbdev, is_tnetw1450, &radio_type); ++ ++ /* TNETW1450-based cards will continue right away with ++ * the same USB ID after booting */ ++ } else { ++ /* First check if this is the "unbooted" hardware */ ++ if (usbdev->descriptor.idProduct == ACX100_PRODUCT_ID_UNBOOTED) { ++ ++ /* Boot the device (i.e. upload the firmware) */ ++ acxusb_boot(usbdev, is_tnetw1450, &radio_type); ++ ++ /* DWL-120+ will first boot the firmware, ++ * then later have a *separate* probe() run ++ * since its USB ID will have changed after ++ * firmware boot! ++ * Since the first probe() run has no ++ * other purpose than booting the firmware, ++ * simply return immediately. ++ */ ++ log(L_INIT, "finished booting, returning from probe()\n"); ++ result = OK; /* success */ ++ goto end; ++ } ++ else ++ /* device not unbooted, but invalid USB ID!? */ ++ if (usbdev->descriptor.idProduct != ACX100_PRODUCT_ID_BOOTED) ++ goto end_nodev; ++ } ++ ++/* Ok, so it's our device and it has already booted */ ++ ++ /* Allocate memory for a network device */ ++ ++ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init); ++ /* (NB: memsets to 0 entire area) */ ++ if (!ndev) { ++ msg = "acx: no memory for netdev\n"; ++ goto end_nomem; ++ } ++ ++ /* Register the callbacks for the network device functions */ ++ ++ ether_setup(ndev); ++ ndev->open = &acxusb_e_open; ++ ndev->stop = &acxusb_e_close; ++ ndev->hard_start_xmit = (void *)&acx_i_start_xmit; ++ ndev->get_stats = (void *)&acx_e_get_stats; ++#if IW_HANDLER_VERSION <= 5 ++ ndev->get_wireless_stats = (void *)&acx_e_get_wireless_stats; ++#endif ++ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def; ++ ndev->set_multicast_list = (void *)&acxusb_i_set_rx_mode; ++#ifdef HAVE_TX_TIMEOUT ++ ndev->tx_timeout = &acxusb_i_tx_timeout; ++ ndev->watchdog_timeo = 4 * HZ; ++#endif ++ ndev->change_mtu = &acx_e_change_mtu; ++ SET_MODULE_OWNER(ndev); ++ ++ /* Setup private driver context */ ++ ++ adev = ndev2adev(ndev); ++ adev->ndev = ndev; ++ ++ adev->dev_type = DEVTYPE_USB; ++ adev->radio_type = radio_type; ++ if (is_tnetw1450) { ++ /* well, actually it's a TNETW1450, but since it ++ * seems to be sufficiently similar to TNETW1130, ++ * I don't want to change large amounts of code now */ ++ adev->chip_type = CHIPTYPE_ACX111; ++ } else { ++ adev->chip_type = CHIPTYPE_ACX100; ++ } ++ ++ adev->usbdev = usbdev; ++ spin_lock_init(&adev->lock); /* initial state: unlocked */ ++ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */ ++ ++ /* Check that this is really the hardware we know about. ++ ** If not sure, at least notify the user that he ++ ** may be in trouble... ++ */ ++ numconfigs = (int)usbdev->descriptor.bNumConfigurations; ++ if (numconfigs != 1) ++ printk("acx: number of configurations is %d, " ++ "this driver only knows how to handle 1, " ++ "be prepared for surprises\n", numconfigs); ++ ++ config = &usbdev->config->desc; ++ numfaces = config->bNumInterfaces; ++ if (numfaces != 1) ++ printk("acx: number of interfaces is %d, " ++ "this driver only knows how to handle 1, " ++ "be prepared for surprises\n", numfaces); ++ ++ ifdesc = &intf->altsetting->desc; ++ numep = ifdesc->bNumEndpoints; ++ log(L_DEBUG, "# of endpoints: %d\n", numep); ++ ++ if (is_tnetw1450) { ++ adev->bulkoutep = 1; ++ adev->bulkinep = 2; ++ } else { ++ /* obtain information about the endpoint ++ ** addresses, begin with some default values ++ */ ++ adev->bulkoutep = 1; ++ adev->bulkinep = 1; ++ for (i = 0; i < numep; i++) { ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++ ep = usbdev->ep_in[i]; ++ if (!ep) ++ continue; ++ epdesc = &ep->desc; ++#else ++ epdesc = usb_epnum_to_ep_desc(usbdev, i); ++ if (!epdesc) ++ continue; ++#endif ++ if (epdesc->bmAttributes & USB_ENDPOINT_XFER_BULK) { ++ if (epdesc->bEndpointAddress & 0x80) ++ adev->bulkinep = epdesc->bEndpointAddress & 0xF; ++ else ++ adev->bulkoutep = epdesc->bEndpointAddress & 0xF; ++ } ++ } ++ } ++ log(L_DEBUG, "bulkout ep: 0x%X\n", adev->bulkoutep); ++ log(L_DEBUG, "bulkin ep: 0x%X\n", adev->bulkinep); ++ ++ /* already done by memset: adev->rxtruncsize = 0; */ ++ log(L_DEBUG, "TXBUFSIZE=%d RXBUFSIZE=%d\n", ++ (int) TXBUFSIZE, (int) RXBUFSIZE); ++ ++ /* Allocate the RX/TX containers. */ ++ adev->usb_tx = kmalloc(sizeof(usb_tx_t) * ACX_TX_URB_CNT, GFP_KERNEL); ++ if (!adev->usb_tx) { ++ msg = "acx: no memory for tx container"; ++ goto end_nomem; ++ } ++ adev->usb_rx = kmalloc(sizeof(usb_rx_t) * ACX_RX_URB_CNT, GFP_KERNEL); ++ if (!adev->usb_rx) { ++ msg = "acx: no memory for rx container"; ++ goto end_nomem; ++ } ++ ++ /* Setup URBs for bulk-in/out messages */ ++ for (i = 0; i < ACX_RX_URB_CNT; i++) { ++ adev->usb_rx[i].urb = usb_alloc_urb(0, GFP_KERNEL); ++ if (!adev->usb_rx[i].urb) { ++ msg = "acx: no memory for input URB\n"; ++ goto end_nomem; ++ } ++ adev->usb_rx[i].urb->status = 0; ++ adev->usb_rx[i].adev = adev; ++ adev->usb_rx[i].busy = 0; ++ } ++ ++ for (i = 0; i< ACX_TX_URB_CNT; i++) { ++ adev->usb_tx[i].urb = usb_alloc_urb(0, GFP_KERNEL); ++ if (!adev->usb_tx[i].urb) { ++ msg = "acx: no memory for output URB\n"; ++ goto end_nomem; ++ } ++ adev->usb_tx[i].urb->status = 0; ++ adev->usb_tx[i].adev = adev; ++ adev->usb_tx[i].busy = 0; ++ } ++ adev->tx_free = ACX_TX_URB_CNT; ++ ++ usb_set_intfdata(intf, adev); ++ SET_NETDEV_DEV(ndev, &intf->dev); ++ ++ /* TODO: move all of fw cmds to open()? But then we won't know our MAC addr ++ until ifup (it's available via reading ACX1xx_IE_DOT11_STATION_ID)... */ ++ ++ /* put acx out of sleep mode and initialize it */ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0); ++ ++ result = acx_s_init_mac(adev); ++ if (result) ++ goto end; ++ ++ /* TODO: see similar code in pci.c */ ++ acxusb_s_read_eeprom_version(adev); ++ acxusb_s_fill_configoption(adev); ++ acx_s_set_defaults(adev); ++ acx_s_get_firmware_version(adev); ++ acx_display_hardware_details(adev); ++ ++ /* Register the network device */ ++ log(L_INIT, "registering network device\n"); ++ result = register_netdev(ndev); ++ if (result) { ++ msg = "acx: failed to register USB network device " ++ "(error %d)\n"; ++ goto end_nomem; ++ } ++ ++ acx_proc_register_entries(ndev); ++ ++ acx_stop_queue(ndev, "on probe"); ++ acx_carrier_off(ndev, "on probe"); ++ ++ printk("acx: USB module " ACX_RELEASE " loaded successfully\n"); ++ ++#if CMD_DISCOVERY ++ great_inquisitor(adev); ++#endif ++ ++ /* Everything went OK, we are happy now */ ++ result = OK; ++ goto end; ++ ++end_nomem: ++ printk(msg, result); ++ ++ if (ndev) { ++ if (adev->usb_rx) { ++ for (i = 0; i < ACX_RX_URB_CNT; i++) ++ usb_free_urb(adev->usb_rx[i].urb); ++ kfree(adev->usb_rx); ++ } ++ if (adev->usb_tx) { ++ for (i = 0; i < ACX_TX_URB_CNT; i++) ++ usb_free_urb(adev->usb_tx[i].urb); ++ kfree(adev->usb_tx); ++ } ++ free_netdev(ndev); ++ } ++ ++ result = -ENOMEM; ++ goto end; ++ ++end_nodev: ++ /* no device we could handle, return error. */ ++ result = -EIO; ++ ++end: ++ FN_EXIT1(result); ++ return result; ++} ++ ++ ++/*********************************************************************** ++** acxusb_e_disconnect() ++** ++** This function is invoked whenever the user pulls the plug from the USB ++** device or the module is removed from the kernel. In these cases, the ++** network devices have to be taken down and all allocated memory has ++** to be freed. ++*/ ++static void ++acxusb_e_disconnect(struct usb_interface *intf) ++{ ++ acx_device_t *adev = usb_get_intfdata(intf); ++ unsigned long flags; ++ int i; ++ ++ FN_ENTER; ++ ++ /* No WLAN device... no sense */ ++ if (!adev) ++ goto end; ++ ++ /* Unregister network device ++ * ++ * If the interface is up, unregister_netdev() will take ++ * care of calling our close() function, which takes ++ * care of unlinking the urbs, sending the device to ++ * sleep, etc... ++ * This can't be called with sem or lock held because ++ * _close() will try to grab it as well if it's called, ++ * deadlocking the machine. ++ */ ++ unregister_netdev(adev->ndev); ++ ++ acx_sem_lock(adev); ++ acx_lock(adev, flags); ++ /* This device exists no more */ ++ usb_set_intfdata(intf, NULL); ++ acx_proc_unregister_entries(adev->ndev); ++ ++ /* ++ * Here we only free them. _close() took care of ++ * unlinking them. ++ */ ++ for (i = 0; i < ACX_RX_URB_CNT; ++i) { ++ usb_free_urb(adev->usb_rx[i].urb); ++ } ++ for (i = 0; i< ACX_TX_URB_CNT; ++i) { ++ usb_free_urb(adev->usb_tx[i].urb); ++ } ++ ++ /* Freeing containers */ ++ kfree(adev->usb_rx); ++ kfree(adev->usb_tx); ++ ++ acx_unlock(adev, flags); ++ acx_sem_unlock(adev); ++ ++ free_netdev(adev->ndev); ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxusb_e_open() ++** This function is called when the user sets up the network interface. ++** It initializes a management timer, sets up the USB card and starts ++** the network tx queue and USB receive. ++*/ ++static int ++acxusb_e_open(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ int i; ++ ++ FN_ENTER; ++ ++ acx_sem_lock(adev); ++ ++ /* put the ACX100 out of sleep mode */ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0); ++ ++ acx_init_task_scheduler(adev); ++ ++ init_timer(&adev->mgmt_timer); ++ adev->mgmt_timer.function = acx_i_timer; ++ adev->mgmt_timer.data = (unsigned long)adev; ++ ++ /* acx_s_start needs it */ ++ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ acx_s_start(adev); ++ ++ /* don't acx_start_queue() here, we need to associate first */ ++ ++ acx_lock(adev, flags); ++ for (i = 0; i < ACX_RX_URB_CNT; i++) { ++ adev->usb_rx[i].urb->status = 0; ++ } ++ ++ acxusb_l_poll_rx(adev, &adev->usb_rx[0]); ++ ++ acx_unlock(adev, flags); ++ ++ acx_sem_unlock(adev); ++ ++ FN_EXIT0; ++ return 0; ++} ++ ++ ++/*********************************************************************** ++** acxusb_e_close() ++** ++** This function stops the network functionality of the interface (invoked ++** when the user calls ifconfig <wlan> down). The tx queue is halted and ++** the device is marked as down. In case there were any pending USB bulk ++** transfers, these are unlinked (asynchronously). The module in-use count ++** is also decreased in this function. ++*/ ++static int ++acxusb_e_close(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ int i; ++ ++ FN_ENTER; ++ ++#ifdef WE_STILL_DONT_CARE_ABOUT_IT ++ /* Transmit a disassociate frame */ ++ lock ++ acx_l_transmit_disassoc(adev, &client); ++ unlock ++#endif ++ ++ acx_sem_lock(adev); ++ ++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP); ++ ++/* Code below is remarkably similar to acxpci_s_down(). Maybe we can merge them? */ ++ ++ /* Make sure we don't get any more rx requests */ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0); ++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0); ++ ++ /* ++ * We must do FLUSH *without* holding sem to avoid a deadlock. ++ * See pci.c:acxpci_s_down() for deails. ++ */ ++ acx_sem_unlock(adev); ++ FLUSH_SCHEDULED_WORK(); ++ acx_sem_lock(adev); ++ ++ /* Power down the device */ ++ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0); ++ ++ /* Stop the transmit queue, mark the device as DOWN */ ++ acx_lock(adev, flags); ++ acx_stop_queue(ndev, "on ifdown"); ++ acx_set_status(adev, ACX_STATUS_0_STOPPED); ++ /* stop pending rx/tx urb transfers */ ++ for (i = 0; i < ACX_TX_URB_CNT; i++) { ++ acxusb_unlink_urb(adev->usb_tx[i].urb); ++ adev->usb_tx[i].busy = 0; ++ } ++ for (i = 0; i < ACX_RX_URB_CNT; i++) { ++ acxusb_unlink_urb(adev->usb_rx[i].urb); ++ adev->usb_rx[i].busy = 0; ++ } ++ adev->tx_free = ACX_TX_URB_CNT; ++ acx_unlock(adev, flags); ++ ++ /* Must do this outside of lock */ ++ del_timer_sync(&adev->mgmt_timer); ++ ++ acx_sem_unlock(adev); ++ ++ FN_EXIT0; ++ return 0; ++} ++ ++ ++/*********************************************************************** ++** acxusb_l_poll_rx ++** This function (re)initiates a bulk-in USB transfer on a given urb ++*/ ++static void ++acxusb_l_poll_rx(acx_device_t *adev, usb_rx_t* rx) ++{ ++ struct usb_device *usbdev; ++ struct urb *rxurb; ++ int errcode, rxnum; ++ unsigned int inpipe; ++ ++ FN_ENTER; ++ ++ rxurb = rx->urb; ++ usbdev = adev->usbdev; ++ ++ rxnum = rx - adev->usb_rx; ++ ++ inpipe = usb_rcvbulkpipe(usbdev, adev->bulkinep); ++ if (unlikely(rxurb->status == -EINPROGRESS)) { ++ printk(KERN_ERR "acx: error, rx triggered while rx urb in progress\n"); ++ /* FIXME: this is nasty, receive is being cancelled by this code ++ * on the other hand, this should not happen anyway... ++ */ ++ usb_unlink_urb(rxurb); ++ } else ++ if (unlikely(rxurb->status == -ECONNRESET)) { ++ log(L_USBRXTX, "acx_usb: _poll_rx: connection reset\n"); ++ goto end; ++ } ++ rxurb->actual_length = 0; ++ usb_fill_bulk_urb(rxurb, usbdev, inpipe, ++ &rx->bulkin, /* dataptr */ ++ RXBUFSIZE, /* size */ ++ acxusb_i_complete_rx, /* handler */ ++ rx /* handler param */ ++ ); ++ rxurb->transfer_flags = URB_ASYNC_UNLINK; ++ ++ /* ATOMIC: we may be called from complete_rx() usb callback */ ++ errcode = usb_submit_urb(rxurb, GFP_ATOMIC); ++ /* FIXME: evaluate the error code! */ ++ log(L_USBRXTX, "SUBMIT RX (%d) inpipe=0x%X size=%d errcode=%d\n", ++ rxnum, inpipe, (int) RXBUFSIZE, errcode); ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxusb_i_complete_rx() ++** Inputs: ++** urb -> pointer to USB request block ++** regs -> pointer to register-buffer for syscalls (see asm/ptrace.h) ++** ++** This function is invoked by USB subsystem whenever a bulk receive ++** request returns. ++** The received data is then committed to the network stack and the next ++** USB receive is triggered. ++*/ ++static void ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++acxusb_i_complete_rx(struct urb *urb) ++#else ++acxusb_i_complete_rx(struct urb *urb, struct pt_regs *regs) ++#endif ++{ ++ acx_device_t *adev; ++ rxbuffer_t *ptr; ++ rxbuffer_t *inbuf; ++ usb_rx_t *rx; ++ unsigned long flags; ++ int size, remsize, packetsize, rxnum; ++ ++ FN_ENTER; ++ ++ BUG_ON(!urb->context); ++ ++ rx = (usb_rx_t *)urb->context; ++ adev = rx->adev; ++ ++ acx_lock(adev, flags); ++ ++ /* ++ * Happens on disconnect or close. Don't play with the urb. ++ * Don't resubmit it. It will get unlinked by close() ++ */ ++ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) { ++ log(L_USBRXTX, "rx: device is down, not doing anything\n"); ++ goto end_unlock; ++ } ++ ++ inbuf = &rx->bulkin; ++ size = urb->actual_length; ++ remsize = size; ++ rxnum = rx - adev->usb_rx; ++ ++ log(L_USBRXTX, "RETURN RX (%d) status=%d size=%d\n", ++ rxnum, urb->status, size); ++ ++ /* Send the URB that's waiting. */ ++ log(L_USBRXTX, "rxnum=%d, sending=%d\n", rxnum, rxnum^1); ++ acxusb_l_poll_rx(adev, &adev->usb_rx[rxnum^1]); ++ ++ if (unlikely(size > sizeof(rxbuffer_t))) ++ printk("acx_usb: rx too large: %d, please report\n", size); ++ ++ /* check if the transfer was aborted */ ++ switch (urb->status) { ++ case 0: /* No error */ ++ break; ++ case -EOVERFLOW: ++ printk(KERN_ERR "acx: rx data overrun\n"); ++ adev->rxtruncsize = 0; /* Not valid anymore. */ ++ goto end_unlock; ++ case -ECONNRESET: ++ adev->rxtruncsize = 0; ++ goto end_unlock; ++ case -ESHUTDOWN: /* rmmod */ ++ adev->rxtruncsize = 0; ++ goto end_unlock; ++ default: ++ adev->rxtruncsize = 0; ++ adev->stats.rx_errors++; ++ printk("acx: rx error (urb status=%d)\n", urb->status); ++ goto end_unlock; ++ } ++ ++ if (unlikely(!size)) ++ printk("acx: warning, encountered zerolength rx packet\n"); ++ ++ if (urb->transfer_buffer != inbuf) ++ goto end_unlock; ++ ++ /* check if previous frame was truncated ++ ** FIXME: this code can only handle truncation ++ ** of consecutive packets! ++ */ ++ ptr = inbuf; ++ if (adev->rxtruncsize) { ++ int tail_size; ++ ++ ptr = &adev->rxtruncbuf; ++ packetsize = RXBUF_BYTES_USED(ptr); ++ if (acx_debug & L_USBRXTX) { ++ printk("handling truncated frame (truncsize=%d size=%d " ++ "packetsize(from trunc)=%d)\n", ++ adev->rxtruncsize, size, packetsize); ++ acx_dump_bytes(ptr, RXBUF_HDRSIZE); ++ acx_dump_bytes(inbuf, RXBUF_HDRSIZE); ++ } ++ ++ /* bytes needed for rxtruncbuf completion: */ ++ tail_size = packetsize - adev->rxtruncsize; ++ ++ if (size < tail_size) { ++ /* there is not enough data to complete this packet, ++ ** simply append the stuff to the truncation buffer ++ */ ++ memcpy(((char *)ptr) + adev->rxtruncsize, inbuf, size); ++ adev->rxtruncsize += size; ++ remsize = 0; ++ } else { ++ /* ok, this data completes the previously ++ ** truncated packet. copy it into a descriptor ++ ** and give it to the rest of the stack */ ++ ++ /* append tail to previously truncated part ++ ** NB: adev->rxtruncbuf (pointed to by ptr) can't ++ ** overflow because this is already checked before ++ ** truncation buffer was filled. See below, ++ ** "if (packetsize > sizeof(rxbuffer_t))..." code */ ++ memcpy(((char *)ptr) + adev->rxtruncsize, inbuf, tail_size); ++ ++ if (acx_debug & L_USBRXTX) { ++ printk("full trailing packet + 12 bytes:\n"); ++ acx_dump_bytes(inbuf, tail_size + RXBUF_HDRSIZE); ++ } ++ acx_l_process_rxbuf(adev, ptr); ++ adev->rxtruncsize = 0; ++ ptr = (rxbuffer_t *) (((char *)inbuf) + tail_size); ++ remsize -= tail_size; ++ } ++ log(L_USBRXTX, "post-merge size=%d remsize=%d\n", ++ size, remsize); ++ } ++ ++ /* size = USB data block size ++ ** remsize = unprocessed USB bytes left ++ ** ptr = current pos in USB data block ++ */ ++ while (remsize) { ++ if (remsize < RXBUF_HDRSIZE) { ++ printk("acx: truncated rx header (%d bytes)!\n", ++ remsize); ++ if (ACX_DEBUG) ++ acx_dump_bytes(ptr, remsize); ++ break; ++ } ++ ++ packetsize = RXBUF_BYTES_USED(ptr); ++ log(L_USBRXTX, "packet with packetsize=%d\n", packetsize); ++ ++ if (RXBUF_IS_TXSTAT(ptr)) { ++ /* do rate handling */ ++ usb_txstatus_t *stat = (void*)ptr; ++ u16 client_no = (u16)stat->hostdata; ++ ++ log(L_USBRXTX, "tx: stat: mac_cnt_rcvd:%04X " ++ "queue_index:%02X mac_status:%02X hostdata:%08X " ++ "rate:%u ack_failures:%02X rts_failures:%02X " ++ "rts_ok:%02X\n", ++ stat->mac_cnt_rcvd, ++ stat->queue_index, stat->mac_status, stat->hostdata, ++ stat->rate, stat->ack_failures, stat->rts_failures, ++ stat->rts_ok); ++ ++ if (adev->rate_auto && client_no < VEC_SIZE(adev->sta_list)) { ++ client_t *clt = &adev->sta_list[client_no]; ++ u16 cur = stat->hostdata >> 16; ++ ++ if (clt && clt->rate_cur == cur) { ++ acx_l_handle_txrate_auto(adev, clt, ++ cur, /* intended rate */ ++ stat->rate, 0, /* actually used rate */ ++ stat->mac_status, /* error? */ ++ ACX_TX_URB_CNT - adev->tx_free); ++ } ++ } ++ goto next; ++ } ++ ++ if (packetsize > sizeof(rxbuffer_t)) { ++ printk("acx: packet exceeds max wlan " ++ "frame size (%d > %d). size=%d\n", ++ packetsize, (int) sizeof(rxbuffer_t), size); ++ if (ACX_DEBUG) ++ acx_dump_bytes(ptr, 16); ++ /* FIXME: put some real error-handling in here! */ ++ break; ++ } ++ ++ if (packetsize > remsize) { ++ /* frame truncation handling */ ++ if (acx_debug & L_USBRXTX) { ++ printk("need to truncate packet, " ++ "packetsize=%d remsize=%d " ++ "size=%d bytes:", ++ packetsize, remsize, size); ++ acx_dump_bytes(ptr, RXBUF_HDRSIZE); ++ } ++ memcpy(&adev->rxtruncbuf, ptr, remsize); ++ adev->rxtruncsize = remsize; ++ break; ++ } ++ ++ /* packetsize <= remsize */ ++ /* now handle the received data */ ++ acx_l_process_rxbuf(adev, ptr); ++next: ++ ptr = (rxbuffer_t *)(((char *)ptr) + packetsize); ++ remsize -= packetsize; ++ if ((acx_debug & L_USBRXTX) && remsize) { ++ printk("more than one packet in buffer, " ++ "second packet hdr:"); ++ acx_dump_bytes(ptr, RXBUF_HDRSIZE); ++ } ++ } ++ ++end_unlock: ++ acx_unlock(adev, flags); ++/* end: */ ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++** acxusb_i_complete_tx() ++** Inputs: ++** urb -> pointer to USB request block ++** regs -> pointer to register-buffer for syscalls (see asm/ptrace.h) ++** ++** This function is invoked upon termination of a USB transfer. ++*/ ++static void ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) ++acxusb_i_complete_tx(struct urb *urb) ++#else ++acxusb_i_complete_tx(struct urb *urb, struct pt_regs *regs) ++#endif ++{ ++ acx_device_t *adev; ++ usb_tx_t *tx; ++ unsigned long flags; ++ int txnum; ++ ++ FN_ENTER; ++ ++ BUG_ON(!urb->context); ++ ++ tx = (usb_tx_t *)urb->context; ++ adev = tx->adev; ++ ++ txnum = tx - adev->usb_tx; ++ ++ acx_lock(adev, flags); ++ ++ /* ++ * If the iface isn't up, we don't have any right ++ * to play with them. The urb may get unlinked. ++ */ ++ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) { ++ log(L_USBRXTX, "tx: device is down, not doing anything\n"); ++ goto end_unlock; ++ } ++ ++ log(L_USBRXTX, "RETURN TX (%d): status=%d size=%d\n", ++ txnum, urb->status, urb->actual_length); ++ ++ /* handle USB transfer errors */ ++ switch (urb->status) { ++ case 0: /* No error */ ++ break; ++ case -ESHUTDOWN: ++ goto end_unlock; ++ break; ++ case -ECONNRESET: ++ goto end_unlock; ++ break; ++ /* FIXME: real error-handling code here please */ ++ default: ++ printk(KERN_ERR "acx: tx error, urb status=%d\n", urb->status); ++ /* FIXME: real error-handling code here please */ ++ } ++ ++ /* free the URB and check for more data */ ++ tx->busy = 0; ++ adev->tx_free++; ++ if ((adev->tx_free >= TX_START_QUEUE) ++ && (adev->status == ACX_STATUS_4_ASSOCIATED) ++ && (acx_queue_stopped(adev->ndev)) ++ ) { ++ log(L_BUF, "tx: wake queue (%u free txbufs)\n", ++ adev->tx_free); ++ acx_wake_queue(adev->ndev, NULL); ++ } ++ ++end_unlock: ++ acx_unlock(adev, flags); ++/* end: */ ++ FN_EXIT0; ++} ++ ++ ++/*************************************************************** ++** acxusb_l_alloc_tx ++** Actually returns a usb_tx_t* ptr ++*/ ++tx_t* ++acxusb_l_alloc_tx(acx_device_t *adev) ++{ ++ usb_tx_t *tx; ++ unsigned head; ++ ++ FN_ENTER; ++ ++ head = adev->tx_head; ++ do { ++ head = (head + 1) % ACX_TX_URB_CNT; ++ if (!adev->usb_tx[head].busy) { ++ log(L_USBRXTX, "allocated tx %d\n", head); ++ tx = &adev->usb_tx[head]; ++ tx->busy = 1; ++ adev->tx_free--; ++ /* Keep a few free descs between head and tail of tx ring. ++ ** It is not absolutely needed, just feels safer */ ++ if (adev->tx_free < TX_STOP_QUEUE) { ++ log(L_BUF, "tx: stop queue " ++ "(%u free txbufs)\n", adev->tx_free); ++ acx_stop_queue(adev->ndev, NULL); ++ } ++ goto end; ++ } ++ } while (likely(head!=adev->tx_head)); ++ tx = NULL; ++ printk_ratelimited("acx: tx buffers full\n"); ++end: ++ adev->tx_head = head; ++ FN_EXIT0; ++ return (tx_t*)tx; ++} ++ ++ ++/*************************************************************** ++** Used if alloc_tx()'ed buffer needs to be cancelled without doing tx ++*/ ++void ++acxusb_l_dealloc_tx(tx_t *tx_opaque) ++{ ++ usb_tx_t* tx = (usb_tx_t*)tx_opaque; ++ tx->busy = 0; ++} ++ ++ ++/*************************************************************** ++*/ ++void* ++acxusb_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque) ++{ ++ usb_tx_t* tx = (usb_tx_t*)tx_opaque; ++ return &tx->bulkout.data; ++} ++ ++ ++/*************************************************************** ++** acxusb_l_tx_data ++** ++** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx). ++** Can be called from acx_i_start_xmit (data frames from net core). ++*/ ++void ++acxusb_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int wlanpkt_len) ++{ ++ struct usb_device *usbdev; ++ struct urb* txurb; ++ usb_tx_t* tx; ++ usb_txbuffer_t* txbuf; ++ client_t *clt; ++ wlan_hdr_t* whdr; ++ unsigned int outpipe; ++ int ucode, txnum; ++ ++ FN_ENTER; ++ ++ tx = ((usb_tx_t *)tx_opaque); ++ txurb = tx->urb; ++ txbuf = &tx->bulkout; ++ whdr = (wlan_hdr_t *)txbuf->data; ++ txnum = tx - adev->usb_tx; ++ ++ log(L_DEBUG, "using buf#%d free=%d len=%d\n", ++ txnum, adev->tx_free, wlanpkt_len); ++ ++ switch (adev->mode) { ++ case ACX_MODE_0_ADHOC: ++ case ACX_MODE_3_AP: ++ clt = acx_l_sta_list_get(adev, whdr->a1); ++ break; ++ case ACX_MODE_2_STA: ++ clt = adev->ap_client; ++ break; ++ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */ ++ clt = NULL; ++ break; ++ } ++ ++ if (unlikely(clt && !clt->rate_cur)) { ++ printk("acx: driver bug! bad ratemask\n"); ++ goto end; ++ } ++ ++ /* fill the USB transfer header */ ++ txbuf->desc = cpu_to_le16(USB_TXBUF_TXDESC); ++ txbuf->mpdu_len = cpu_to_le16(wlanpkt_len); ++ txbuf->queue_index = 1; ++ if (clt) { ++ txbuf->rate = clt->rate_100; ++ txbuf->hostdata = (clt - adev->sta_list) | (clt->rate_cur << 16); ++ } else { ++ txbuf->rate = adev->rate_bcast100; ++ txbuf->hostdata = ((u16)-1) | (adev->rate_bcast << 16); ++ } ++ txbuf->ctrl1 = DESC_CTL_FIRSTFRAG; ++ if (1 == adev->preamble_cur) ++ SET_BIT(txbuf->ctrl1, DESC_CTL_SHORT_PREAMBLE); ++ txbuf->ctrl2 = 0; ++ txbuf->data_len = cpu_to_le16(wlanpkt_len); ++ ++ if (unlikely(acx_debug & L_DATA)) { ++ printk("dump of bulk out urb:\n"); ++ acx_dump_bytes(txbuf, wlanpkt_len + USB_TXBUF_HDRSIZE); ++ } ++ ++ if (unlikely(txurb->status == -EINPROGRESS)) { ++ printk("acx: trying to submit tx urb while already in progress\n"); ++ } ++ ++ /* now schedule the USB transfer */ ++ usbdev = adev->usbdev; ++ outpipe = usb_sndbulkpipe(usbdev, adev->bulkoutep); ++ ++ usb_fill_bulk_urb(txurb, usbdev, outpipe, ++ txbuf, /* dataptr */ ++ wlanpkt_len + USB_TXBUF_HDRSIZE, /* size */ ++ acxusb_i_complete_tx, /* handler */ ++ tx /* handler param */ ++ ); ++ ++ txurb->transfer_flags = URB_ASYNC_UNLINK|URB_ZERO_PACKET; ++ ucode = usb_submit_urb(txurb, GFP_ATOMIC); ++ log(L_USBRXTX, "SUBMIT TX (%d): outpipe=0x%X buf=%p txsize=%d " ++ "rate=%u errcode=%d\n", txnum, outpipe, txbuf, ++ wlanpkt_len + USB_TXBUF_HDRSIZE, txbuf->rate, ucode); ++ ++ if (unlikely(ucode)) { ++ printk(KERN_ERR "acx: submit_urb() error=%d txsize=%d\n", ++ ucode, wlanpkt_len + USB_TXBUF_HDRSIZE); ++ ++ /* on error, just mark the frame as done and update ++ ** the statistics ++ */ ++ adev->stats.tx_errors++; ++ tx->busy = 0; ++ adev->tx_free++; ++ /* needed? if (adev->tx_free > TX_START_QUEUE) acx_wake_queue(...) */ ++ } ++end: ++ FN_EXIT0; ++} ++ ++ ++/*********************************************************************** ++*/ ++static void ++acxusb_i_set_rx_mode(struct net_device *ndev) ++{ ++} ++ ++ ++/*********************************************************************** ++*/ ++#ifdef HAVE_TX_TIMEOUT ++static void ++acxusb_i_tx_timeout(struct net_device *ndev) ++{ ++ acx_device_t *adev = ndev2adev(ndev); ++ unsigned long flags; ++ int i; ++ ++ FN_ENTER; ++ ++ acx_lock(adev, flags); ++ /* unlink the URBs */ ++ for (i = 0; i < ACX_TX_URB_CNT; i++) { ++ acxusb_unlink_urb(adev->usb_tx[i].urb); ++ adev->usb_tx[i].busy = 0; ++ } ++ adev->tx_free = ACX_TX_URB_CNT; ++ /* TODO: stats update */ ++ acx_unlock(adev, flags); ++ ++ FN_EXIT0; ++} ++#endif ++ ++ ++/*********************************************************************** ++** init_module() ++** ++** This function is invoked upon loading of the kernel module. ++** It registers itself at the kernel's USB subsystem. ++** ++** Returns: Errorcode on failure, 0 on success ++*/ ++int __init ++acxusb_e_init_module(void) ++{ ++ log(L_INIT, "USB module " ACX_RELEASE " initialized, " ++ "probing for devices...\n"); ++ return usb_register(&acxusb_driver); ++} ++ ++ ++ ++/*********************************************************************** ++** cleanup_module() ++** ++** This function is invoked as last step of the module unloading. It simply ++** deregisters this module at the kernel's USB subsystem. ++*/ ++void __exit ++acxusb_e_cleanup_module() ++{ ++ usb_deregister(&acxusb_driver); ++} ++ ++ ++/*********************************************************************** ++** DEBUG STUFF ++*/ ++#if ACX_DEBUG ++ ++#ifdef UNUSED ++static void ++dump_device(struct usb_device *usbdev) ++{ ++ int i; ++ struct usb_config_descriptor *cd; ++ ++ printk("acx device dump:\n"); ++ printk(" devnum: %d\n", usbdev->devnum); ++ printk(" speed: %d\n", usbdev->speed); ++ printk(" tt: 0x%X\n", (unsigned int)(usbdev->tt)); ++ printk(" ttport: %d\n", (unsigned int)(usbdev->ttport)); ++ printk(" toggle[0]: 0x%X toggle[1]: 0x%X\n", (unsigned int)(usbdev->toggle[0]), (unsigned int)(usbdev->toggle[1])); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11) ++ /* This saw a change after 2.6.10 */ ++ printk(" ep_in wMaxPacketSize: "); ++ for (i = 0; i < 16; ++i) ++ if (usbdev->ep_in[i] != NULL) ++ printk("%d:%d ", i, usbdev->ep_in[i]->desc.wMaxPacketSize); ++ printk("\n"); ++ printk(" ep_out wMaxPacketSize: "); ++ for (i = 0; i < VEC_SIZE(usbdev->ep_out); ++i) ++ if (usbdev->ep_out[i] != NULL) ++ printk("%d:%d ", i, usbdev->ep_out[i]->desc.wMaxPacketSize); ++ printk("\n"); ++#else ++ printk(" epmaxpacketin: "); ++ for (i = 0; i < 16; i++) ++ printk("%d ", usbdev->epmaxpacketin[i]); ++ printk("\n"); ++ printk(" epmaxpacketout: "); ++ for (i = 0; i < 16; i++) ++ printk("%d ", usbdev->epmaxpacketout[i]); ++ printk("\n"); ++#endif ++ printk(" parent: 0x%X\n", (unsigned int)usbdev->parent); ++ printk(" bus: 0x%X\n", (unsigned int)usbdev->bus); ++#ifdef NO_DATATYPE ++ printk(" configs: "); ++ for (i = 0; i < usbdev->descriptor.bNumConfigurations; i++) ++ printk("0x%X ", usbdev->config[i]); ++ printk("\n"); ++#endif ++ printk(" actconfig: %p\n", usbdev->actconfig); ++ dump_device_descriptor(&usbdev->descriptor); ++ ++ cd = &usbdev->config->desc; ++ dump_config_descriptor(cd); ++} ++ ++ ++/*********************************************************************** ++*/ ++static void ++dump_config_descriptor(struct usb_config_descriptor *cd) ++{ ++ printk("Configuration Descriptor:\n"); ++ if (!cd) { ++ printk("NULL\n"); ++ return; ++ } ++ printk(" bLength: %d (0x%X)\n", cd->bLength, cd->bLength); ++ printk(" bDescriptorType: %d (0x%X)\n", cd->bDescriptorType, cd->bDescriptorType); ++ printk(" bNumInterfaces: %d (0x%X)\n", cd->bNumInterfaces, cd->bNumInterfaces); ++ printk(" bConfigurationValue: %d (0x%X)\n", cd->bConfigurationValue, cd->bConfigurationValue); ++ printk(" iConfiguration: %d (0x%X)\n", cd->iConfiguration, cd->iConfiguration); ++ printk(" bmAttributes: %d (0x%X)\n", cd->bmAttributes, cd->bmAttributes); ++ /* printk(" MaxPower: %d (0x%X)\n", cd->bMaxPower, cd->bMaxPower); */ ++} ++ ++ ++static void ++dump_device_descriptor(struct usb_device_descriptor *dd) ++{ ++ printk("Device Descriptor:\n"); ++ if (!dd) { ++ printk("NULL\n"); ++ return; ++ } ++ printk(" bLength: %d (0x%X)\n", dd->bLength, dd->bLength); ++ printk(" bDescriptortype: %d (0x%X)\n", dd->bDescriptorType, dd->bDescriptorType); ++ printk(" bcdUSB: %d (0x%X)\n", dd->bcdUSB, dd->bcdUSB); ++ printk(" bDeviceClass: %d (0x%X)\n", dd->bDeviceClass, dd->bDeviceClass); ++ printk(" bDeviceSubClass: %d (0x%X)\n", dd->bDeviceSubClass, dd->bDeviceSubClass); ++ printk(" bDeviceProtocol: %d (0x%X)\n", dd->bDeviceProtocol, dd->bDeviceProtocol); ++ printk(" bMaxPacketSize0: %d (0x%X)\n", dd->bMaxPacketSize0, dd->bMaxPacketSize0); ++ printk(" idVendor: %d (0x%X)\n", dd->idVendor, dd->idVendor); ++ printk(" idProduct: %d (0x%X)\n", dd->idProduct, dd->idProduct); ++ printk(" bcdDevice: %d (0x%X)\n", dd->bcdDevice, dd->bcdDevice); ++ printk(" iManufacturer: %d (0x%X)\n", dd->iManufacturer, dd->iManufacturer); ++ printk(" iProduct: %d (0x%X)\n", dd->iProduct, dd->iProduct); ++ printk(" iSerialNumber: %d (0x%X)\n", dd->iSerialNumber, dd->iSerialNumber); ++ printk(" bNumConfigurations: %d (0x%X)\n", dd->bNumConfigurations, dd->bNumConfigurations); ++} ++#endif /* UNUSED */ ++ ++#endif /* ACX_DEBUG */ +Index: linux-2.6.23/drivers/net/wireless/acx/wlan.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/wlan.c 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,424 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++/*********************************************************************** ++** This code is based on elements which are ++** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. ++** info@linux-wlan.com ++** http://www.linux-wlan.com ++*/ ++ ++#include <linux/version.h> ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) ++#include <linux/config.h> ++#endif ++#include <linux/types.h> ++#include <linux/if_arp.h> ++#include <linux/wireless.h> ++#include <net/iw_handler.h> ++ ++#include "acx.h" ++ ++ ++/*********************************************************************** ++*/ ++#define LOG_BAD_EID(hdr,len,ie_ptr) acx_log_bad_eid(hdr, len, ((wlan_ie_t*)ie_ptr)) ++ ++#define IE_EID(ie_ptr) (((wlan_ie_t*)(ie_ptr))->eid) ++#define IE_LEN(ie_ptr) (((wlan_ie_t*)(ie_ptr))->len) ++#define OFFSET(hdr,off) (WLAN_HDR_A3_DATAP(hdr) + (off)) ++ ++ ++/*********************************************************************** ++** wlan_mgmt_decode_XXX ++** ++** Given a complete frame in f->hdr, sets the pointers in f to ++** the areas that correspond to the parts of the frame. ++** ++** Assumptions: ++** 1) f->len and f->hdr are already set ++** 2) f->len is the length of the MAC header + data, the FCS ++** is NOT included ++** 3) all members except len and hdr are zero ++** Arguments: ++** f frame structure ++** ++** Returns: ++** nothing ++** ++** Side effects: ++** frame structure members are pointing at their ++** respective portions of the frame buffer. ++*/ ++void ++wlan_mgmt_decode_beacon(wlan_fr_beacon_t * f) ++{ ++ u8 *ie_ptr; ++ u8 *end = (u8*)f->hdr + f->len; ++ ++ f->type = WLAN_FSTYPE_BEACON; ++ ++ /*-- Fixed Fields ----*/ ++ f->ts = (u64 *) OFFSET(f->hdr, WLAN_BEACON_OFF_TS); ++ f->bcn_int = (u16 *) OFFSET(f->hdr, WLAN_BEACON_OFF_BCN_INT); ++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_BEACON_OFF_CAPINFO); ++ ++ /*-- Information elements */ ++ ie_ptr = OFFSET(f->hdr, WLAN_BEACON_OFF_SSID); ++ while (ie_ptr < end) { ++ switch (IE_EID(ie_ptr)) { ++ case WLAN_EID_SSID: ++ f->ssid = (wlan_ie_ssid_t *) ie_ptr; ++ break; ++ case WLAN_EID_SUPP_RATES: ++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ case WLAN_EID_EXT_RATES: ++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ case WLAN_EID_FH_PARMS: ++ f->fh_parms = (wlan_ie_fh_parms_t *) ie_ptr; ++ break; ++ case WLAN_EID_DS_PARMS: ++ f->ds_parms = (wlan_ie_ds_parms_t *) ie_ptr; ++ break; ++ case WLAN_EID_CF_PARMS: ++ f->cf_parms = (wlan_ie_cf_parms_t *) ie_ptr; ++ break; ++ case WLAN_EID_IBSS_PARMS: ++ f->ibss_parms = (wlan_ie_ibss_parms_t *) ie_ptr; ++ break; ++ case WLAN_EID_TIM: ++ f->tim = (wlan_ie_tim_t *) ie_ptr; ++ break; ++ case WLAN_EID_ERP_INFO: ++ f->erp = (wlan_ie_erp_t *) ie_ptr; ++ break; ++ ++ case WLAN_EID_COUNTRY: ++ /* was seen: 07 06 47 42 20 01 0D 14 */ ++ case WLAN_EID_PWR_CONSTRAINT: ++ /* was seen by Ashwin Mansinghka <ashwin_man@yahoo.com> from ++ Atheros-based PCI card in AP mode using madwifi drivers: */ ++ /* 20 01 00 */ ++ case WLAN_EID_NONERP: ++ /* was seen from WRT54GS with OpenWrt: 2F 01 07 */ ++ case WLAN_EID_UNKNOWN128: ++ /* was seen by Jacek Jablonski <conexion2000@gmail.com> from Orinoco AP */ ++ /* 80 06 00 60 1D 2C 3B 00 */ ++ case WLAN_EID_UNKNOWN133: ++ /* was seen by David Bronaugh <dbronaugh@linuxboxen.org> from ???? */ ++ /* 85 1E 00 00 84 12 07 00 FF 00 11 00 61 70 63 31 */ ++ /* 63 73 72 30 34 32 00 00 00 00 00 00 00 00 00 25 */ ++ case WLAN_EID_UNKNOWN223: ++ /* was seen by Carlos Martin <carlosmn@gmail.com> from ???? */ ++ /* DF 20 01 1E 04 00 00 00 06 63 09 02 FF 0F 30 30 */ ++ /* 30 42 36 42 33 34 30 39 46 31 00 00 00 00 00 00 00 00 */ ++ case WLAN_EID_GENERIC: ++ /* WPA: hostap code: ++ if (pos[1] >= 4 && ++ pos[2] == 0x00 && pos[3] == 0x50 && ++ pos[4] == 0xf2 && pos[5] == 1) { ++ wpa = pos; ++ wpa_len = pos[1] + 2; ++ } ++ TI x4 mode: seen DD 04 08 00 28 00 ++ (08 00 28 is TI's OUI) ++ last byte is probably 0/1 - disabled/enabled ++ */ ++ case WLAN_EID_RSN: ++ /* hostap does something with it: ++ rsn = pos; ++ rsn_len = pos[1] + 2; ++ */ ++ break; ++ ++ default: ++ LOG_BAD_EID(f->hdr, f->len, ie_ptr); ++ break; ++ } ++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr); ++ } ++} ++ ++ ++#ifdef UNUSED ++void wlan_mgmt_decode_ibssatim(wlan_fr_ibssatim_t * f) ++{ ++ f->type = WLAN_FSTYPE_ATIM; ++ /*-- Fixed Fields ----*/ ++ /*-- Information elements */ ++} ++#endif /* UNUSED */ ++ ++void ++wlan_mgmt_decode_disassoc(wlan_fr_disassoc_t * f) ++{ ++ f->type = WLAN_FSTYPE_DISASSOC; ++ ++ /*-- Fixed Fields ----*/ ++ f->reason = (u16 *) OFFSET(f->hdr, WLAN_DISASSOC_OFF_REASON); ++ ++ /*-- Information elements */ ++} ++ ++ ++void ++wlan_mgmt_decode_assocreq(wlan_fr_assocreq_t * f) ++{ ++ u8 *ie_ptr; ++ u8 *end = (u8*)f->hdr + f->len; ++ ++ ++ f->type = WLAN_FSTYPE_ASSOCREQ; ++ ++ /*-- Fixed Fields ----*/ ++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_CAP_INFO); ++ f->listen_int = (u16 *) OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_LISTEN_INT); ++ ++ /*-- Information elements */ ++ ie_ptr = OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_SSID); ++ while (ie_ptr < end) { ++ switch (IE_EID(ie_ptr)) { ++ case WLAN_EID_SSID: ++ f->ssid = (wlan_ie_ssid_t *) ie_ptr; ++ break; ++ case WLAN_EID_SUPP_RATES: ++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ case WLAN_EID_EXT_RATES: ++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ default: ++ LOG_BAD_EID(f->hdr, f->len, ie_ptr); ++ break; ++ } ++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr); ++ } ++} ++ ++ ++void ++wlan_mgmt_decode_assocresp(wlan_fr_assocresp_t * f) ++{ ++ f->type = WLAN_FSTYPE_ASSOCRESP; ++ ++ /*-- Fixed Fields ----*/ ++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_CAP_INFO); ++ f->status = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_STATUS); ++ f->aid = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_AID); ++ ++ /*-- Information elements */ ++ f->supp_rates = (wlan_ie_supp_rates_t *) ++ OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_SUPP_RATES); ++} ++ ++ ++#ifdef UNUSED ++void ++wlan_mgmt_decode_reassocreq(wlan_fr_reassocreq_t * f) ++{ ++ u8 *ie_ptr; ++ u8 *end = (u8*)f->hdr + f->len; ++ ++ f->type = WLAN_FSTYPE_REASSOCREQ; ++ ++ /*-- Fixed Fields ----*/ ++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_CAP_INFO); ++ f->listen_int = (u16 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_LISTEN_INT); ++ f->curr_ap = (u8 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_CURR_AP); ++ ++ /*-- Information elements */ ++ ie_ptr = OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_SSID); ++ while (ie_ptr < end) { ++ switch (IE_EID(ie_ptr)) { ++ case WLAN_EID_SSID: ++ f->ssid = (wlan_ie_ssid_t *) ie_ptr; ++ break; ++ case WLAN_EID_SUPP_RATES: ++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ case WLAN_EID_EXT_RATES: ++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ default: ++ LOG_BAD_EID(f->hdr, f->len, ie_ptr); ++ break; ++ } ++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr); ++ } ++} ++ ++ ++void ++wlan_mgmt_decode_reassocresp(wlan_fr_reassocresp_t * f) ++{ ++ f->type = WLAN_FSTYPE_REASSOCRESP; ++ ++ /*-- Fixed Fields ----*/ ++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_CAP_INFO); ++ f->status = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_STATUS); ++ f->aid = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_AID); ++ ++ /*-- Information elements */ ++ f->supp_rates = (wlan_ie_supp_rates_t *) ++ OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_SUPP_RATES); ++} ++ ++ ++void ++wlan_mgmt_decode_probereq(wlan_fr_probereq_t * f) ++{ ++ u8 *ie_ptr; ++ u8 *end = (u8*)f->hdr + f->len; ++ ++ f->type = WLAN_FSTYPE_PROBEREQ; ++ ++ /*-- Fixed Fields ----*/ ++ ++ /*-- Information elements */ ++ ie_ptr = OFFSET(f->hdr, WLAN_PROBEREQ_OFF_SSID); ++ while (ie_ptr < end) { ++ switch (IE_EID(ie_ptr)) { ++ case WLAN_EID_SSID: ++ f->ssid = (wlan_ie_ssid_t *) ie_ptr; ++ break; ++ case WLAN_EID_SUPP_RATES: ++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ case WLAN_EID_EXT_RATES: ++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ default: ++ LOG_BAD_EID(f->hdr, f->len, ie_ptr); ++ break; ++ } ++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr); ++ } ++} ++#endif /* UNUSED */ ++ ++ ++/* TODO: decoding of beacon and proberesp can be merged (similar structure) */ ++void ++wlan_mgmt_decode_proberesp(wlan_fr_proberesp_t * f) ++{ ++ u8 *ie_ptr; ++ u8 *end = (u8*)f->hdr + f->len; ++ ++ f->type = WLAN_FSTYPE_PROBERESP; ++ ++ /*-- Fixed Fields ----*/ ++ f->ts = (u64 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_TS); ++ f->bcn_int = (u16 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_BCN_INT); ++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_CAP_INFO); ++ ++ /*-- Information elements */ ++ ie_ptr = OFFSET(f->hdr, WLAN_PROBERESP_OFF_SSID); ++ while (ie_ptr < end) { ++ switch (IE_EID(ie_ptr)) { ++ case WLAN_EID_SSID: ++ f->ssid = (wlan_ie_ssid_t *) ie_ptr; ++ break; ++ case WLAN_EID_SUPP_RATES: ++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ case WLAN_EID_EXT_RATES: ++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr; ++ break; ++ case WLAN_EID_FH_PARMS: ++ f->fh_parms = (wlan_ie_fh_parms_t *) ie_ptr; ++ break; ++ case WLAN_EID_DS_PARMS: ++ f->ds_parms = (wlan_ie_ds_parms_t *) ie_ptr; ++ break; ++ case WLAN_EID_CF_PARMS: ++ f->cf_parms = (wlan_ie_cf_parms_t *) ie_ptr; ++ break; ++ case WLAN_EID_IBSS_PARMS: ++ f->ibss_parms = (wlan_ie_ibss_parms_t *) ie_ptr; ++ break; ++#ifdef DONT_DO_IT_ADD_REAL_HANDLING_INSTEAD ++ case WLAN_EID_COUNTRY: ++ break; ++ ... ++#endif ++#ifdef SENT_HERE_BY_OPENWRT ++ /* should those be trapped or handled?? */ ++ case WLAN_EID_ERP_INFO: ++ break; ++ case WLAN_EID_NONERP: ++ break; ++ case WLAN_EID_GENERIC: ++ break; ++#endif ++ default: ++ LOG_BAD_EID(f->hdr, f->len, ie_ptr); ++ break; ++ } ++ ++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr); ++ } ++} ++ ++ ++void ++wlan_mgmt_decode_authen(wlan_fr_authen_t * f) ++{ ++ u8 *ie_ptr; ++ u8 *end = (u8*)f->hdr + f->len; ++ ++ f->type = WLAN_FSTYPE_AUTHEN; ++ ++ /*-- Fixed Fields ----*/ ++ f->auth_alg = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_AUTH_ALG); ++ f->auth_seq = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_AUTH_SEQ); ++ f->status = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_STATUS); ++ ++ /*-- Information elements */ ++ ie_ptr = OFFSET(f->hdr, WLAN_AUTHEN_OFF_CHALLENGE); ++ if ((ie_ptr < end) && (IE_EID(ie_ptr) == WLAN_EID_CHALLENGE)) { ++ f->challenge = (wlan_ie_challenge_t *) ie_ptr; ++ } ++} ++ ++ ++void ++wlan_mgmt_decode_deauthen(wlan_fr_deauthen_t * f) ++{ ++ f->type = WLAN_FSTYPE_DEAUTHEN; ++ ++ /*-- Fixed Fields ----*/ ++ f->reason = (u16 *) OFFSET(f->hdr, WLAN_DEAUTHEN_OFF_REASON); ++ ++ /*-- Information elements */ ++} +Index: linux-2.6.23/drivers/net/wireless/acx/wlan_compat.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/wlan_compat.h 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,260 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++/*********************************************************************** ++** This code is based on elements which are ++** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. ++** info@linux-wlan.com ++** http://www.linux-wlan.com ++*/ ++ ++/*=============================================================*/ ++/*------ Establish Platform Identity --------------------------*/ ++/*=============================================================*/ ++/* Key macros: */ ++/* WLAN_CPU_FAMILY */ ++#define WLAN_Ix86 1 ++#define WLAN_PPC 2 ++#define WLAN_Ix96 3 ++#define WLAN_ARM 4 ++#define WLAN_ALPHA 5 ++#define WLAN_MIPS 6 ++#define WLAN_HPPA 7 ++#define WLAN_SPARC 8 ++#define WLAN_SH 9 ++#define WLAN_x86_64 10 ++/* WLAN_CPU_CORE */ ++#define WLAN_I386CORE 1 ++#define WLAN_PPCCORE 2 ++#define WLAN_I296 3 ++#define WLAN_ARMCORE 4 ++#define WLAN_ALPHACORE 5 ++#define WLAN_MIPSCORE 6 ++#define WLAN_HPPACORE 7 ++/* WLAN_CPU_PART */ ++#define WLAN_I386PART 1 ++#define WLAN_MPC860 2 ++#define WLAN_MPC823 3 ++#define WLAN_I296SA 4 ++#define WLAN_PPCPART 5 ++#define WLAN_ARMPART 6 ++#define WLAN_ALPHAPART 7 ++#define WLAN_MIPSPART 8 ++#define WLAN_HPPAPART 9 ++/* WLAN_SYSARCH */ ++#define WLAN_PCAT 1 ++#define WLAN_MBX 2 ++#define WLAN_RPX 3 ++#define WLAN_LWARCH 4 ++#define WLAN_PMAC 5 ++#define WLAN_SKIFF 6 ++#define WLAN_BITSY 7 ++#define WLAN_ALPHAARCH 7 ++#define WLAN_MIPSARCH 9 ++#define WLAN_HPPAARCH 10 ++/* WLAN_HOSTIF (generally set on the command line, not detected) */ ++#define WLAN_PCMCIA 1 ++#define WLAN_ISA 2 ++#define WLAN_PCI 3 ++#define WLAN_USB 4 ++#define WLAN_PLX 5 ++ ++/* Note: the PLX HOSTIF above refers to some vendors implementations for */ ++/* PCI. It's a PLX chip that is a PCI to PCMCIA adapter, but it */ ++/* isn't a real PCMCIA host interface adapter providing all the */ ++/* card&socket services. */ ++ ++#ifdef __powerpc__ ++#ifndef __ppc__ ++#define __ppc__ ++#endif ++#endif ++ ++#if (defined(CONFIG_PPC) || defined(CONFIG_8xx)) ++#ifndef __ppc__ ++#define __ppc__ ++#endif ++#endif ++ ++#if defined(__x86_64__) ++ #define WLAN_CPU_FAMILY WLAN_x86_64 ++ #define WLAN_SYSARCH WLAN_PCAT ++#elif defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ++ #define WLAN_CPU_FAMILY WLAN_Ix86 ++ #define WLAN_CPU_CORE WLAN_I386CORE ++ #define WLAN_CPU_PART WLAN_I386PART ++ #define WLAN_SYSARCH WLAN_PCAT ++#elif defined(__ppc__) ++ #define WLAN_CPU_FAMILY WLAN_PPC ++ #define WLAN_CPU_CORE WLAN_PPCCORE ++ #if defined(CONFIG_MBX) ++ #define WLAN_CPU_PART WLAN_MPC860 ++ #define WLAN_SYSARCH WLAN_MBX ++ #elif defined(CONFIG_RPXLITE) ++ #define WLAN_CPU_PART WLAN_MPC823 ++ #define WLAN_SYSARCH WLAN_RPX ++ #elif defined(CONFIG_RPXCLASSIC) ++ #define WLAN_CPU_PART WLAN_MPC860 ++ #define WLAN_SYSARCH WLAN_RPX ++ #else ++ #define WLAN_CPU_PART WLAN_PPCPART ++ #define WLAN_SYSARCH WLAN_PMAC ++ #endif ++#elif defined(__arm__) ++ #define WLAN_CPU_FAMILY WLAN_ARM ++ #define WLAN_CPU_CORE WLAN_ARMCORE ++ #define WLAN_CPU_PART WLAN_ARM_PART ++ #define WLAN_SYSARCH WLAN_SKIFF ++#elif defined(__alpha__) ++ #define WLAN_CPU_FAMILY WLAN_ALPHA ++ #define WLAN_CPU_CORE WLAN_ALPHACORE ++ #define WLAN_CPU_PART WLAN_ALPHAPART ++ #define WLAN_SYSARCH WLAN_ALPHAARCH ++#elif defined(__mips__) ++ #define WLAN_CPU_FAMILY WLAN_MIPS ++ #define WLAN_CPU_CORE WLAN_MIPSCORE ++ #define WLAN_CPU_PART WLAN_MIPSPART ++ #define WLAN_SYSARCH WLAN_MIPSARCH ++#elif defined(__hppa__) ++ #define WLAN_CPU_FAMILY WLAN_HPPA ++ #define WLAN_CPU_CORE WLAN_HPPACORE ++ #define WLAN_CPU_PART WLAN_HPPAPART ++ #define WLAN_SYSARCH WLAN_HPPAARCH ++#elif defined(__sparc__) ++ #define WLAN_CPU_FAMILY WLAN_SPARC ++ #define WLAN_SYSARCH WLAN_SPARC ++#elif defined(__sh__) ++ #define WLAN_CPU_FAMILY WLAN_SH ++ #define WLAN_SYSARCH WLAN_SHARCH ++ #ifndef __LITTLE_ENDIAN__ ++ #define __LITTLE_ENDIAN__ ++ #endif ++#else ++ #error "No CPU identified!" ++#endif ++ ++/* ++ Some big endian machines implicitly do all I/O in little endian mode. ++ ++ In particular: ++ Linux/PPC on PowerMacs (PCI) ++ Arm/Intel Xscale (PCI) ++ ++ This may also affect PLX boards and other BE &| PPC platforms; ++ as new ones are discovered, add them below. ++*/ ++ ++#if ((WLAN_SYSARCH == WLAN_SKIFF) || (WLAN_SYSARCH == WLAN_PMAC)) ++#define REVERSE_ENDIAN ++#endif ++ ++/*=============================================================*/ ++/*------ Hardware Portability Macros --------------------------*/ ++/*=============================================================*/ ++#if (WLAN_CPU_FAMILY == WLAN_PPC) ++#define wlan_inw(a) in_be16((unsigned short *)((a)+_IO_BASE)) ++#define wlan_inw_le16_to_cpu(a) inw((a)) ++#define wlan_outw(v,a) out_be16((unsigned short *)((a)+_IO_BASE), (v)) ++#define wlan_outw_cpu_to_le16(v,a) outw((v),(a)) ++#else ++#define wlan_inw(a) inw((a)) ++#define wlan_inw_le16_to_cpu(a) __cpu_to_le16(inw((a))) ++#define wlan_outw(v,a) outw((v),(a)) ++#define wlan_outw_cpu_to_le16(v,a) outw(__cpu_to_le16((v)),(a)) ++#endif ++ ++/*=============================================================*/ ++/*------ Bit settings -----------------------------------------*/ ++/*=============================================================*/ ++#define ieee2host16(n) __le16_to_cpu(n) ++#define ieee2host32(n) __le32_to_cpu(n) ++#define host2ieee16(n) __cpu_to_le16(n) ++#define host2ieee32(n) __cpu_to_le32(n) ++ ++/* for constants */ ++#ifdef __LITTLE_ENDIAN ++ #define IEEE16(a,n) a = n, a##i = n, ++#else ++ #ifdef __BIG_ENDIAN ++ /* shifts would produce gcc warnings. Oh well... */ ++ #define IEEE16(a,n) a = n, a##i = ((n&0xff)*256 + ((n&0xff00)/256)), ++ #else ++ #error give me endianness or give me death ++ #endif ++#endif ++ ++/*=============================================================*/ ++/*------ Compiler Portability Macros --------------------------*/ ++/*=============================================================*/ ++#define WLAN_PACKED __attribute__ ((packed)) ++ ++/* Interrupt handler backwards compatibility stuff */ ++#ifndef IRQ_NONE ++#define IRQ_NONE ++#define IRQ_HANDLED ++typedef void irqreturn_t; ++#endif ++ ++#ifndef ARPHRD_IEEE80211_PRISM ++#define ARPHRD_IEEE80211_PRISM 802 ++#endif ++ ++#define ETH_P_80211_RAW (ETH_P_ECONET + 1) ++ ++/*============================================================================* ++ * Constants * ++ *============================================================================*/ ++#define WLAN_IEEE_OUI_LEN 3 ++ ++/*============================================================================* ++ * Types * ++ *============================================================================*/ ++ ++/* local ether header type */ ++typedef struct wlan_ethhdr { ++ u8 daddr[ETH_ALEN]; ++ u8 saddr[ETH_ALEN]; ++ u16 type; ++} WLAN_PACKED wlan_ethhdr_t; ++ ++/* local llc header type */ ++typedef struct wlan_llc { ++ u8 dsap; ++ u8 ssap; ++ u8 ctl; ++} WLAN_PACKED wlan_llc_t; ++ ++/* local snap header type */ ++typedef struct wlan_snap { ++ u8 oui[WLAN_IEEE_OUI_LEN]; ++ u16 type; ++} WLAN_PACKED wlan_snap_t; +Index: linux-2.6.23/drivers/net/wireless/acx/wlan_hdr.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/wlan_hdr.h 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,497 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++/*********************************************************************** ++** This code is based on elements which are ++** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. ++** info@linux-wlan.com ++** http://www.linux-wlan.com ++*/ ++ ++/* mini-doc ++ ++Here are all 11b/11g/11a rates and modulations: ++ ++ 11b 11g 11a ++ --- --- --- ++ 1 |B |B | ++ 2 |Q |Q | ++ 5.5|Cp |C p| ++ 6 | |Od |O ++ 9 | |od |o ++11 |Cp |C p| ++12 | |Od |O ++18 | |od |o ++22 | | p| ++24 | |Od |O ++33 | | p| ++36 | |od |o ++48 | |od |o ++54 | |od |o ++ ++Mandatory: ++ B - DBPSK (Differential Binary Phase Shift Keying) ++ Q - DQPSK (Differential Quaternary Phase Shift Keying) ++ C - CCK (Complementary Code Keying, a form of DSSS ++ (Direct Sequence Spread Spectrum) modulation) ++ O - OFDM (Orthogonal Frequency Division Multiplexing) ++Optional: ++ o - OFDM ++ d - CCK-OFDM (also known as DSSS-OFDM) ++ p - PBCC (Packet Binary Convolutional Coding) ++ ++The term CCK-OFDM may be used interchangeably with DSSS-OFDM ++(the IEEE 802.11g-2003 standard uses the latter terminology). ++In the CCK-OFDM, the PLCP header of the frame uses the CCK form of DSSS, ++while the PLCP payload (the MAC frame) is modulated using OFDM. ++ ++Basically, you must use CCK-OFDM if you have mixed 11b/11g environment, ++or else (pure OFDM) 11b equipment may not realize that AP ++is sending a packet and start sending its own one. ++Sadly, looks like acx111 does not support CCK-OFDM, only pure OFDM. ++ ++Re PBCC: avoid using it. It makes sense only if you have ++TI "11b+" hardware. You _must_ use PBCC in order to reach 22Mbps on it. ++ ++Preambles: ++ ++Long preamble (at 1Mbit rate, takes 144 us): ++ 16 bytes ones ++ 2 bytes 0xF3A0 (lsb sent first) ++PLCP header follows (at 1Mbit also): ++ 1 byte Signal: speed, in 0.1Mbit units, except for: ++ 33Mbit: 33 (instead of 330 - doesn't fit in octet) ++ all CCK-OFDM rates: 30 ++ 1 byte Service ++ 0,1,4: reserved ++ 2: 1=locked clock ++ 3: 1=PBCC ++ 5: Length Extension (PBCC 22,33Mbit (11g only)) <- ++ 6: Length Extension (PBCC 22,33Mbit (11g only)) <- BLACK MAGIC HERE ++ 7: Length Extension <- ++ 2 bytes Length (time needed to tx this frame) ++ a) 5.5 Mbit/s CCK ++ Length = octets*8/5.5, rounded up to integer ++ b) 11 Mbit/s CCK ++ Length = octets*8/11, rounded up to integer ++ Service bit 7: ++ 0 = rounding took less than 8/11 ++ 1 = rounding took more than or equal to 8/11 ++ c) 5.5 Mbit/s PBCC ++ Length = (octets+1)*8/5.5, rounded up to integer ++ d) 11 Mbit/s PBCC ++ Length = (octets+1)*8/11, rounded up to integer ++ Service bit 7: ++ 0 = rounding took less than 8/11 ++ 1 = rounding took more than or equal to 8/11 ++ e) 22 Mbit/s PBCC ++ Length = (octets+1)*8/22, rounded up to integer ++ Service bits 6,7: ++ 00 = rounding took less than 8/22ths ++ 01 = rounding took 8/22...15/22ths ++ 10 = rounding took 16/22ths or more. ++ f) 33 Mbit/s PBCC ++ Length = (octets+1)*8/33, rounded up to integer ++ Service bits 5,6,7: ++ 000 rounding took less than 8/33 ++ 001 rounding took 8/33...15/33 ++ 010 rounding took 16/33...23/33 ++ 011 rounding took 24/33...31/33 ++ 100 rounding took 32/33 or more ++ 2 bytes CRC ++ ++PSDU follows (up to 2346 bytes at selected rate) ++ ++While Signal value alone is not enough to determine rate and modulation, ++Signal+Service is always sufficient. ++ ++Short preamble (at 1Mbit rate, takes 72 us): ++ 7 bytes zeroes ++ 2 bytes 0x05CF (lsb sent first) ++PLCP header follows *at 2Mbit/s*. Format is the same as in long preamble. ++PSDU follows (up to 2346 bytes at selected rate) ++ ++OFDM preamble is completely different, uses OFDM ++modulation from the start and thus easily identifiable. ++Not shown here. ++*/ ++ ++ ++/*********************************************************************** ++** Constants ++*/ ++ ++#define WLAN_HDR_A3_LEN 24 ++#define WLAN_HDR_A4_LEN 30 ++/* IV structure: ++** 3 bytes: Initialization Vector (24 bits) ++** 1 byte: 0..5: padding, must be 0; 6..7: key selector (0-3) ++*/ ++#define WLAN_WEP_IV_LEN 4 ++/* 802.11 says 2312 but looks like 2312 is a max size of _WEPed data_ */ ++#define WLAN_DATA_MAXLEN 2304 ++#define WLAN_WEP_ICV_LEN 4 ++#define WLAN_FCS_LEN 4 ++#define WLAN_A3FR_MAXLEN (WLAN_HDR_A3_LEN + WLAN_DATA_MAXLEN) ++#define WLAN_A4FR_MAXLEN (WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN) ++#define WLAN_A3FR_MAXLEN_FCS (WLAN_HDR_A3_LEN + WLAN_DATA_MAXLEN + 4) ++#define WLAN_A4FR_MAXLEN_FCS (WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN + 4) ++#define WLAN_A3FR_MAXLEN_WEP (WLAN_A3FR_MAXLEN + 8) ++#define WLAN_A4FR_MAXLEN_WEP (WLAN_A4FR_MAXLEN + 8) ++#define WLAN_A3FR_MAXLEN_WEP_FCS (WLAN_A3FR_MAXLEN_FCS + 8) ++#define WLAN_A4FR_MAXLEN_WEP_FCS (WLAN_A4FR_MAXLEN_FCS + 8) ++ ++#define WLAN_BSS_TS_LEN 8 ++#define WLAN_SSID_MAXLEN 32 ++#define WLAN_BEACON_FR_MAXLEN (WLAN_HDR_A3_LEN + 334) ++#define WLAN_ATIM_FR_MAXLEN (WLAN_HDR_A3_LEN + 0) ++#define WLAN_DISASSOC_FR_MAXLEN (WLAN_HDR_A3_LEN + 2) ++#define WLAN_ASSOCREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 48) ++#define WLAN_ASSOCRESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 16) ++#define WLAN_REASSOCREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 54) ++#define WLAN_REASSOCRESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 16) ++#define WLAN_PROBEREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 44) ++#define WLAN_PROBERESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 78) ++#define WLAN_AUTHEN_FR_MAXLEN (WLAN_HDR_A3_LEN + 261) ++#define WLAN_DEAUTHEN_FR_MAXLEN (WLAN_HDR_A3_LEN + 2) ++#define WLAN_CHALLENGE_IE_LEN 130 ++#define WLAN_CHALLENGE_LEN 128 ++#define WLAN_WEP_MAXKEYLEN 13 ++#define WLAN_WEP_NKEYS 4 ++ ++/*--- Frame Control Field -------------------------------------*/ ++/* Frame Types */ ++#define WLAN_FTYPE_MGMT 0x00 ++#define WLAN_FTYPE_CTL 0x01 ++#define WLAN_FTYPE_DATA 0x02 ++ ++/* Frame subtypes */ ++/* Management */ ++#define WLAN_FSTYPE_ASSOCREQ 0x00 ++#define WLAN_FSTYPE_ASSOCRESP 0x01 ++#define WLAN_FSTYPE_REASSOCREQ 0x02 ++#define WLAN_FSTYPE_REASSOCRESP 0x03 ++#define WLAN_FSTYPE_PROBEREQ 0x04 ++#define WLAN_FSTYPE_PROBERESP 0x05 ++#define WLAN_FSTYPE_BEACON 0x08 ++#define WLAN_FSTYPE_ATIM 0x09 ++#define WLAN_FSTYPE_DISASSOC 0x0a ++#define WLAN_FSTYPE_AUTHEN 0x0b ++#define WLAN_FSTYPE_DEAUTHEN 0x0c ++ ++/* Control */ ++#define WLAN_FSTYPE_PSPOLL 0x0a ++#define WLAN_FSTYPE_RTS 0x0b ++#define WLAN_FSTYPE_CTS 0x0c ++#define WLAN_FSTYPE_ACK 0x0d ++#define WLAN_FSTYPE_CFEND 0x0e ++#define WLAN_FSTYPE_CFENDCFACK 0x0f ++ ++/* Data */ ++#define WLAN_FSTYPE_DATAONLY 0x00 ++#define WLAN_FSTYPE_DATA_CFACK 0x01 ++#define WLAN_FSTYPE_DATA_CFPOLL 0x02 ++#define WLAN_FSTYPE_DATA_CFACK_CFPOLL 0x03 ++#define WLAN_FSTYPE_NULL 0x04 ++#define WLAN_FSTYPE_CFACK 0x05 ++#define WLAN_FSTYPE_CFPOLL 0x06 ++#define WLAN_FSTYPE_CFACK_CFPOLL 0x07 ++ ++/*--- FC Constants v. 2.0 ------------------------------------*/ ++/* Each constant is defined twice: WF_CONST is in host */ ++/* byteorder, WF_CONSTi is in ieee byteorder. */ ++/* Usage: */ ++/* printf("the frame subtype is %X", WF_FC_FTYPEi & rx.fc); */ ++/* tx.fc = WF_FTYPE_CTLi | WF_FSTYPE_RTSi; */ ++/*------------------------------------------------------------*/ ++ ++enum { ++/*--- Frame Control Field -------------------------------------*/ ++/* Protocol version: always 0 for current 802.11 standards */ ++IEEE16(WF_FC_PVER, 0x0003) ++IEEE16(WF_FC_FTYPE, 0x000c) ++IEEE16(WF_FC_FSTYPE, 0x00f0) ++IEEE16(WF_FC_TODS, 0x0100) ++IEEE16(WF_FC_FROMDS, 0x0200) ++IEEE16(WF_FC_FROMTODS, 0x0300) ++IEEE16(WF_FC_MOREFRAG, 0x0400) ++IEEE16(WF_FC_RETRY, 0x0800) ++/* Indicates PS mode in which STA will be after successful completion ++** of current frame exchange sequence. Always 0 for AP frames */ ++IEEE16(WF_FC_PWRMGT, 0x1000) ++/* What MoreData=1 means: ++** From AP to STA in PS mode: don't sleep yet, I have more frames for you ++** From Contention-Free (CF) Pollable STA in response to a CF-Poll: ++** STA has buffered frames for transmission in response to next CF-Poll ++** Bcast/mcast frames transmitted from AP: ++** when additional bcast/mcast frames remain to be transmitted by AP ++** during this beacon interval ++** In all other cases MoreData=0 */ ++IEEE16(WF_FC_MOREDATA, 0x2000) ++IEEE16(WF_FC_ISWEP, 0x4000) ++IEEE16(WF_FC_ORDER, 0x8000) ++ ++/* Frame Types */ ++IEEE16(WF_FTYPE_MGMT, 0x00) ++IEEE16(WF_FTYPE_CTL, 0x04) ++IEEE16(WF_FTYPE_DATA, 0x08) ++ ++/* Frame subtypes */ ++/* Management */ ++IEEE16(WF_FSTYPE_ASSOCREQ, 0x00) ++IEEE16(WF_FSTYPE_ASSOCRESP, 0x10) ++IEEE16(WF_FSTYPE_REASSOCREQ, 0x20) ++IEEE16(WF_FSTYPE_REASSOCRESP, 0x30) ++IEEE16(WF_FSTYPE_PROBEREQ, 0x40) ++IEEE16(WF_FSTYPE_PROBERESP, 0x50) ++IEEE16(WF_FSTYPE_BEACON, 0x80) ++IEEE16(WF_FSTYPE_ATIM, 0x90) ++IEEE16(WF_FSTYPE_DISASSOC, 0xa0) ++IEEE16(WF_FSTYPE_AUTHEN, 0xb0) ++IEEE16(WF_FSTYPE_DEAUTHEN, 0xc0) ++ ++/* Control */ ++IEEE16(WF_FSTYPE_PSPOLL, 0xa0) ++IEEE16(WF_FSTYPE_RTS, 0xb0) ++IEEE16(WF_FSTYPE_CTS, 0xc0) ++IEEE16(WF_FSTYPE_ACK, 0xd0) ++IEEE16(WF_FSTYPE_CFEND, 0xe0) ++IEEE16(WF_FSTYPE_CFENDCFACK, 0xf0) ++ ++/* Data */ ++IEEE16(WF_FSTYPE_DATAONLY, 0x00) ++IEEE16(WF_FSTYPE_DATA_CFACK, 0x10) ++IEEE16(WF_FSTYPE_DATA_CFPOLL, 0x20) ++IEEE16(WF_FSTYPE_DATA_CFACK_CFPOLL, 0x30) ++IEEE16(WF_FSTYPE_NULL, 0x40) ++IEEE16(WF_FSTYPE_CFACK, 0x50) ++IEEE16(WF_FSTYPE_CFPOLL, 0x60) ++IEEE16(WF_FSTYPE_CFACK_CFPOLL, 0x70) ++}; ++ ++ ++/*********************************************************************** ++** Macros ++*/ ++ ++/*--- Duration Macros ----------------------------------------*/ ++/* Macros to get/set the bitfields of the Duration Field */ ++/* - the duration value is only valid when bit15 is zero */ ++/* - the firmware handles these values, so I'm not going */ ++/* to use these macros right now. */ ++/*------------------------------------------------------------*/ ++ ++/*--- Sequence Control Macros -------------------------------*/ ++/* Macros to get/set the bitfields of the Sequence Control */ ++/* Field. */ ++/*------------------------------------------------------------*/ ++#define WLAN_GET_SEQ_FRGNUM(n) ((u16)(n) & 0x000f) ++#define WLAN_GET_SEQ_SEQNUM(n) (((u16)(n) & 0xfff0) >> 4) ++ ++/*--- Data ptr macro -----------------------------------------*/ ++/* Creates a u8* to the data portion of a frame */ ++/* Assumes you're passing in a ptr to the beginning of the hdr*/ ++/*------------------------------------------------------------*/ ++#define WLAN_HDR_A3_DATAP(p) (((u8*)(p)) + WLAN_HDR_A3_LEN) ++#define WLAN_HDR_A4_DATAP(p) (((u8*)(p)) + WLAN_HDR_A4_LEN) ++ ++ ++/*********************************************************************** ++** Types ++*/ ++ ++/* 802.11 header type ++** ++** Note the following: ++** a1 *always* is receiver's mac or bcast/mcast ++** a2 *always* is transmitter's mac, if a2 exists ++** seq: [0:3] frag#, [4:15] seq# - used for dup detection ++** (dups from retries have same seq#) */ ++typedef struct wlan_hdr { ++ u16 fc; ++ u16 dur; ++ u8 a1[ETH_ALEN]; ++ u8 a2[ETH_ALEN]; ++ u8 a3[ETH_ALEN]; ++ u16 seq; ++ u8 a4[ETH_ALEN]; ++} WLAN_PACKED wlan_hdr_t; ++ ++/* Separate structs for use if frame type is known */ ++typedef struct wlan_hdr_a3 { ++ u16 fc; ++ u16 dur; ++ u8 a1[ETH_ALEN]; ++ u8 a2[ETH_ALEN]; ++ u8 a3[ETH_ALEN]; ++ u16 seq; ++} WLAN_PACKED wlan_hdr_a3_t; ++ ++typedef struct wlan_hdr_mgmt { ++ u16 fc; ++ u16 dur; ++ u8 da[ETH_ALEN]; ++ u8 sa[ETH_ALEN]; ++ u8 bssid[ETH_ALEN]; ++ u16 seq; ++} WLAN_PACKED wlan_hdr_mgmt_t; ++ ++#ifdef NOT_NEEDED_YET ++typedef struct { /* ad-hoc peer->peer (to/from DS = 0/0) */ ++ u16 fc; ++ u16 dur; ++ u8 da[ETH_ALEN]; ++ u8 sa[ETH_ALEN]; ++ u8 bssid[ETH_ALEN]; ++ u16 seq; ++} WLAN_PACKED ibss; ++typedef struct { /* ap->sta (to/from DS = 0/1) */ ++ u16 fc; ++ u16 dur; ++ u8 da[ETH_ALEN]; ++ u8 bssid[ETH_ALEN]; ++ u8 sa[ETH_ALEN]; ++ u16 seq; ++} WLAN_PACKED fromap; ++typedef struct { /* sta->ap (to/from DS = 1/0) */ ++ u16 fc; ++ u16 dur; ++ u8 bssid[ETH_ALEN]; ++ u8 sa[ETH_ALEN]; ++ u8 da[ETH_ALEN]; ++ u16 seq; ++} WLAN_PACKED toap; ++typedef struct { /* wds->wds (to/from DS = 1/1), the only 4addr pkt */ ++ u16 fc; ++ u16 dur; ++ u8 ra[ETH_ALEN]; ++ u8 ta[ETH_ALEN]; ++ u8 da[ETH_ALEN]; ++ u16 seq; ++ u8 sa[ETH_ALEN]; ++} WLAN_PACKED wds; ++typedef struct { /* all management packets */ ++ u16 fc; ++ u16 dur; ++ u8 da[ETH_ALEN]; ++ u8 sa[ETH_ALEN]; ++ u8 bssid[ETH_ALEN]; ++ u16 seq; ++} WLAN_PACKED mgmt; ++typedef struct { /* has no body, just a FCS */ ++ u16 fc; ++ u16 dur; ++ u8 ra[ETH_ALEN]; ++ u8 ta[ETH_ALEN]; ++} WLAN_PACKED rts; ++typedef struct { /* has no body, just a FCS */ ++ u16 fc; ++ u16 dur; ++ u8 ra[ETH_ALEN]; ++} WLAN_PACKED cts; ++typedef struct { /* has no body, just a FCS */ ++ u16 fc; ++ u16 dur; ++ u8 ra[ETH_ALEN]; ++} WLAN_PACKED ack; ++typedef struct { /* has no body, just a FCS */ ++ u16 fc; ++ /* NB: this one holds Assoc ID in dur field: */ ++ u16 aid; ++ u8 bssid[ETH_ALEN]; ++ u8 ta[ETH_ALEN]; ++} WLAN_PACKED pspoll; ++typedef struct { /* has no body, just a FCS */ ++ u16 fc; ++ u16 dur; ++ u8 ra[ETH_ALEN]; ++ u8 bssid[ETH_ALEN]; ++} WLAN_PACKED cfend; ++typedef struct { /* has no body, just a FCS */ ++ u16 fc; ++ u16 dur; ++ u8 ra[ETH_ALEN]; ++ u8 bssid[ETH_ALEN]; ++} WLAN_PACKED cfendcfack; ++#endif ++ ++/* Prism header emulation (monitor mode) */ ++typedef struct wlanitem_u32 { ++ u32 did; ++ u16 status; ++ u16 len; ++ u32 data; ++} WLAN_PACKED wlanitem_u32_t; ++#define WLANITEM_STATUS_data_ok 0 ++#define WLANITEM_STATUS_no_value 1 ++#define WLANITEM_STATUS_invalid_itemname 2 ++#define WLANITEM_STATUS_invalid_itemdata 3 ++#define WLANITEM_STATUS_missing_itemdata 4 ++#define WLANITEM_STATUS_incomplete_itemdata 5 ++#define WLANITEM_STATUS_invalid_msg_did 6 ++#define WLANITEM_STATUS_invalid_mib_did 7 ++#define WLANITEM_STATUS_missing_conv_func 8 ++#define WLANITEM_STATUS_string_too_long 9 ++#define WLANITEM_STATUS_data_out_of_range 10 ++#define WLANITEM_STATUS_string_too_short 11 ++#define WLANITEM_STATUS_missing_valid_func 12 ++#define WLANITEM_STATUS_unknown 13 ++#define WLANITEM_STATUS_invalid_did 14 ++#define WLANITEM_STATUS_missing_print_func 15 ++ ++#define WLAN_DEVNAMELEN_MAX 16 ++typedef struct wlansniffrm { ++ u32 msgcode; ++ u32 msglen; ++ u8 devname[WLAN_DEVNAMELEN_MAX]; ++ wlanitem_u32_t hosttime; ++ wlanitem_u32_t mactime; ++ wlanitem_u32_t channel; ++ wlanitem_u32_t rssi; ++ wlanitem_u32_t sq; ++ wlanitem_u32_t signal; ++ wlanitem_u32_t noise; ++ wlanitem_u32_t rate; ++ wlanitem_u32_t istx; /* tx? 0:no 1:yes */ ++ wlanitem_u32_t frmlen; ++} WLAN_PACKED wlansniffrm_t; ++#define WLANSNIFFFRM 0x0041 ++#define WLANSNIFFFRM_hosttime 0x1041 ++#define WLANSNIFFFRM_mactime 0x2041 ++#define WLANSNIFFFRM_channel 0x3041 ++#define WLANSNIFFFRM_rssi 0x4041 ++#define WLANSNIFFFRM_sq 0x5041 ++#define WLANSNIFFFRM_signal 0x6041 ++#define WLANSNIFFFRM_noise 0x7041 ++#define WLANSNIFFFRM_rate 0x8041 ++#define WLANSNIFFFRM_istx 0x9041 ++#define WLANSNIFFFRM_frmlen 0xA041 +Index: linux-2.6.23/drivers/net/wireless/acx/wlan_mgmt.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/acx/wlan_mgmt.h 2008-01-20 21:13:40.000000000 +0000 +@@ -0,0 +1,582 @@ ++/*********************************************************************** ++** Copyright (C) 2003 ACX100 Open Source Project ++** ++** The contents of this file are subject to the Mozilla Public ++** License Version 1.1 (the "License"); you may not use this file ++** except in compliance with the License. You may obtain a copy of ++** the License at http://www.mozilla.org/MPL/ ++** ++** Software distributed under the License is distributed on an "AS ++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ++** implied. See the License for the specific language governing ++** rights and limitations under the License. ++** ++** Alternatively, the contents of this file may be used under the ++** terms of the GNU Public License version 2 (the "GPL"), in which ++** case the provisions of the GPL are applicable instead of the ++** above. If you wish to allow the use of your version of this file ++** only under the terms of the GPL and not to allow others to use ++** your version of this file under the MPL, indicate your decision ++** by deleting the provisions above and replace them with the notice ++** and other provisions required by the GPL. If you do not delete ++** the provisions above, a recipient may use your version of this ++** file under either the MPL or the GPL. ++** --------------------------------------------------------------------- ++** Inquiries regarding the ACX100 Open Source Project can be ++** made directly to: ++** ++** acx100-users@lists.sf.net ++** http://acx100.sf.net ++** --------------------------------------------------------------------- ++*/ ++ ++/*********************************************************************** ++** This code is based on elements which are ++** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. ++** info@linux-wlan.com ++** http://www.linux-wlan.com ++*/ ++ ++/*********************************************************************** ++** Constants ++*/ ++ ++/*-- Information Element IDs --------------------*/ ++#define WLAN_EID_SSID 0 ++#define WLAN_EID_SUPP_RATES 1 ++#define WLAN_EID_FH_PARMS 2 ++#define WLAN_EID_DS_PARMS 3 ++#define WLAN_EID_CF_PARMS 4 ++#define WLAN_EID_TIM 5 ++#define WLAN_EID_IBSS_PARMS 6 ++#define WLAN_EID_COUNTRY 7 /* 802.11d */ ++#define WLAN_EID_FH_HOP_PARMS 8 /* 802.11d */ ++#define WLAN_EID_FH_TABLE 9 /* 802.11d */ ++#define WLAN_EID_REQUEST 10 /* 802.11d */ ++/*-- values 11-15 reserved --*/ ++#define WLAN_EID_CHALLENGE 16 ++/*-- values 17-31 reserved for challenge text extension --*/ ++#define WLAN_EID_PWR_CONSTRAINT 32 /* 11h PowerConstraint */ ++#define WLAN_EID_ERP_INFO 42 /* was seen from WRT54GS with OpenWrt */ ++#define WLAN_EID_NONERP 47 /* was seen from WRT54GS with OpenWrt */ ++#define WLAN_EID_RSN 48 ++#define WLAN_EID_EXT_RATES 50 ++#define WLAN_EID_UNKNOWN128 128 ++#define WLAN_EID_UNKNOWN133 133 ++#define WLAN_EID_GENERIC 221 /* was seen from WRT54GS with OpenWrt */ ++#define WLAN_EID_UNKNOWN223 223 ++ ++#if 0 ++#define WLAN_EID_PWR_CAP 33 /* 11h PowerCapability */ ++#define WLAN_EID_TPC_REQUEST 34 /* 11h TPC Request */ ++#define WLAN_EID_TPC_REPORT 35 /* 11h TPC Report */ ++#define WLAN_EID_SUPP_CHANNELS 36 /* 11h Supported Channels */ ++#define WLAN_EID_CHANNEL_SWITCH 37 /* 11h ChannelSwitch */ ++#define WLAN_EID_MEASURE_REQUEST 38 /* 11h MeasurementRequest */ ++#define WLAN_EID_MEASURE_REPORT 39 /* 11h MeasurementReport */ ++#define WLAN_EID_QUIET_ID 40 /* 11h Quiet */ ++#define WLAN_EID_IBSS_DFS_ID 41 /* 11h IBSS_DFS */ ++#endif ++ ++/*-- Reason Codes -------------------------------*/ ++#define WLAN_MGMT_REASON_RSVD 0 ++#define WLAN_MGMT_REASON_UNSPEC 1 ++#define WLAN_MGMT_REASON_PRIOR_AUTH_INVALID 2 ++#define WLAN_MGMT_REASON_DEAUTH_LEAVING 3 ++#define WLAN_MGMT_REASON_DISASSOC_INACTIVE 4 ++#define WLAN_MGMT_REASON_DISASSOC_AP_BUSY 5 ++#define WLAN_MGMT_REASON_CLASS2_NONAUTH 6 ++#define WLAN_MGMT_REASON_CLASS3_NONASSOC 7 ++#define WLAN_MGMT_REASON_DISASSOC_STA_HASLEFT 8 ++#define WLAN_MGMT_REASON_CANT_ASSOC_NONAUTH 9 ++ ++/*-- Status Codes -------------------------------*/ ++#define WLAN_MGMT_STATUS_SUCCESS 0 ++#define WLAN_MGMT_STATUS_UNSPEC_FAILURE 1 ++#define WLAN_MGMT_STATUS_CAPS_UNSUPPORTED 10 ++#define WLAN_MGMT_STATUS_REASSOC_NO_ASSOC 11 ++#define WLAN_MGMT_STATUS_ASSOC_DENIED_UNSPEC 12 ++#define WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG 13 ++#define WLAN_MGMT_STATUS_RX_AUTH_NOSEQ 14 ++#define WLAN_MGMT_STATUS_CHALLENGE_FAIL 15 ++#define WLAN_MGMT_STATUS_AUTH_TIMEOUT 16 ++#define WLAN_MGMT_STATUS_ASSOC_DENIED_BUSY 17 ++#define WLAN_MGMT_STATUS_ASSOC_DENIED_RATES 18 ++/* p80211b additions */ ++#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOSHORT 19 ++#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOPBCC 20 ++#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOAGILITY 21 ++ ++/*-- Auth Algorithm Field ---------------------------*/ ++#define WLAN_AUTH_ALG_OPENSYSTEM 0 ++#define WLAN_AUTH_ALG_SHAREDKEY 1 ++ ++/*-- Management Frame Field Offsets -------------*/ ++/* Note: Not all fields are listed because of variable lengths */ ++/* Note: These offsets are from the start of the frame data */ ++ ++#define WLAN_BEACON_OFF_TS 0 ++#define WLAN_BEACON_OFF_BCN_INT 8 ++#define WLAN_BEACON_OFF_CAPINFO 10 ++#define WLAN_BEACON_OFF_SSID 12 ++ ++#define WLAN_DISASSOC_OFF_REASON 0 ++ ++#define WLAN_ASSOCREQ_OFF_CAP_INFO 0 ++#define WLAN_ASSOCREQ_OFF_LISTEN_INT 2 ++#define WLAN_ASSOCREQ_OFF_SSID 4 ++ ++#define WLAN_ASSOCRESP_OFF_CAP_INFO 0 ++#define WLAN_ASSOCRESP_OFF_STATUS 2 ++#define WLAN_ASSOCRESP_OFF_AID 4 ++#define WLAN_ASSOCRESP_OFF_SUPP_RATES 6 ++ ++#define WLAN_REASSOCREQ_OFF_CAP_INFO 0 ++#define WLAN_REASSOCREQ_OFF_LISTEN_INT 2 ++#define WLAN_REASSOCREQ_OFF_CURR_AP 4 ++#define WLAN_REASSOCREQ_OFF_SSID 10 ++ ++#define WLAN_REASSOCRESP_OFF_CAP_INFO 0 ++#define WLAN_REASSOCRESP_OFF_STATUS 2 ++#define WLAN_REASSOCRESP_OFF_AID 4 ++#define WLAN_REASSOCRESP_OFF_SUPP_RATES 6 ++ ++#define WLAN_PROBEREQ_OFF_SSID 0 ++ ++#define WLAN_PROBERESP_OFF_TS 0 ++#define WLAN_PROBERESP_OFF_BCN_INT 8 ++#define WLAN_PROBERESP_OFF_CAP_INFO 10 ++#define WLAN_PROBERESP_OFF_SSID 12 ++ ++#define WLAN_AUTHEN_OFF_AUTH_ALG 0 ++#define WLAN_AUTHEN_OFF_AUTH_SEQ 2 ++#define WLAN_AUTHEN_OFF_STATUS 4 ++#define WLAN_AUTHEN_OFF_CHALLENGE 6 ++ ++#define WLAN_DEAUTHEN_OFF_REASON 0 ++ ++enum { ++IEEE16(WF_MGMT_CAP_ESS, 0x0001) ++IEEE16(WF_MGMT_CAP_IBSS, 0x0002) ++/* In (re)assoc request frames by STA: ++** Pollable=0, PollReq=0: STA is not CF-Pollable ++** 0 1: STA is CF-Pollable, not requesting to be placed on the CF-Polling list ++** 1 0: STA is CF-Pollable, requesting to be placed on the CF-Polling list ++** 1 1: STA is CF-Pollable, requesting never to be polled ++** In beacon, proberesp, (re)assoc resp frames by AP: ++** 0 0: No point coordinator at AP ++** 0 1: Point coordinator at AP for delivery only (no polling) ++** 1 0: Point coordinator at AP for delivery and polling ++** 1 1: Reserved */ ++IEEE16(WF_MGMT_CAP_CFPOLLABLE, 0x0004) ++IEEE16(WF_MGMT_CAP_CFPOLLREQ, 0x0008) ++/* 1=non-WEP data frames are disallowed */ ++IEEE16(WF_MGMT_CAP_PRIVACY, 0x0010) ++/* In beacon, proberesp, (re)assocresp by AP/AdHoc: ++** 1=use of shortpre is allowed ("I can receive shortpre") */ ++IEEE16(WF_MGMT_CAP_SHORT, 0x0020) ++IEEE16(WF_MGMT_CAP_PBCC, 0x0040) ++IEEE16(WF_MGMT_CAP_AGILITY, 0x0080) ++/* In (re)assoc request frames by STA: ++** 1=short slot time implemented and enabled ++** NB: AP shall use long slot time beginning at the next Beacon after assoc ++** of STA with this bit set to 0 ++** In beacon, proberesp, (re)assoc resp frames by AP: ++** currently used slot time value: 0/1 - long/short */ ++IEEE16(WF_MGMT_CAP_SHORTSLOT, 0x0400) ++/* In (re)assoc request frames by STA: 1=CCK-OFDM is implemented and enabled ++** In beacon, proberesp, (re)assoc resp frames by AP/AdHoc: ++** 1=CCK-OFDM is allowed */ ++IEEE16(WF_MGMT_CAP_CCKOFDM, 0x2000) ++}; ++ ++ ++/*********************************************************************** ++** Types ++*/ ++ ++/* Information Element types */ ++ ++/* prototype structure, all IEs start with these members */ ++typedef struct wlan_ie { ++ u8 eid; ++ u8 len; ++} WLAN_PACKED wlan_ie_t; ++ ++/*-- Service Set Identity (SSID) -----------------*/ ++typedef struct wlan_ie_ssid { ++ u8 eid; ++ u8 len; ++ u8 ssid[1]; /* may be zero */ ++} WLAN_PACKED wlan_ie_ssid_t; ++ ++/*-- Supported Rates -----------------------------*/ ++typedef struct wlan_ie_supp_rates { ++ u8 eid; ++ u8 len; ++ u8 rates[1]; /* had better be at LEAST one! */ ++} WLAN_PACKED wlan_ie_supp_rates_t; ++ ++/*-- FH Parameter Set ----------------------------*/ ++typedef struct wlan_ie_fh_parms { ++ u8 eid; ++ u8 len; ++ u16 dwell; ++ u8 hopset; ++ u8 hoppattern; ++ u8 hopindex; ++} WLAN_PACKED wlan_ie_fh_parms_t; ++ ++/*-- DS Parameter Set ----------------------------*/ ++typedef struct wlan_ie_ds_parms { ++ u8 eid; ++ u8 len; ++ u8 curr_ch; ++} WLAN_PACKED wlan_ie_ds_parms_t; ++ ++/*-- CF Parameter Set ----------------------------*/ ++typedef struct wlan_ie_cf_parms { ++ u8 eid; ++ u8 len; ++ u8 cfp_cnt; ++ u8 cfp_period; ++ u16 cfp_maxdur; ++ u16 cfp_durremaining; ++} WLAN_PACKED wlan_ie_cf_parms_t; ++ ++/*-- TIM ------------------------------------------*/ ++typedef struct wlan_ie_tim { ++ u8 eid; ++ u8 len; ++ u8 dtim_cnt; ++ u8 dtim_period; ++ u8 bitmap_ctl; ++ u8 virt_bm[1]; ++} WLAN_PACKED wlan_ie_tim_t; ++ ++/*-- IBSS Parameter Set ---------------------------*/ ++typedef struct wlan_ie_ibss_parms { ++ u8 eid; ++ u8 len; ++ u16 atim_win; ++} WLAN_PACKED wlan_ie_ibss_parms_t; ++ ++/*-- Challenge Text ------------------------------*/ ++typedef struct wlan_ie_challenge { ++ u8 eid; ++ u8 len; ++ u8 challenge[1]; ++} WLAN_PACKED wlan_ie_challenge_t; ++ ++/*-- ERP (42) -------------------------------------*/ ++typedef struct wlan_ie_erp { ++ u8 eid; ++ u8 len; ++ /* bit 0:Non ERP present ++ ** 1:Use Protection ++ ** 2:Barker Preamble mode ++ ** 3-7:reserved */ ++ u8 erp; ++} WLAN_PACKED wlan_ie_erp_t; ++ ++/* Types for parsing mgmt frames */ ++ ++/* prototype structure, all mgmt frame types will start with these members */ ++typedef struct wlan_fr_mgmt { ++ u16 type; ++ u16 len; /* DOES NOT include FCS */ ++ wlan_hdr_t *hdr; ++ /* used for target specific data, skb in Linux */ ++ /*-- fixed fields -----------*/ ++ /*-- info elements ----------*/ ++} WLAN_PACKED wlan_fr_mgmt_t; ++ ++/*-- Beacon ---------------------------------------*/ ++typedef struct wlan_fr_beacon { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ u64 *ts; ++ u16 *bcn_int; ++ u16 *cap_info; ++ /*-- info elements ----------*/ ++ wlan_ie_ssid_t *ssid; ++ wlan_ie_supp_rates_t *supp_rates; ++ wlan_ie_supp_rates_t *ext_rates; ++ wlan_ie_fh_parms_t *fh_parms; ++ wlan_ie_ds_parms_t *ds_parms; ++ wlan_ie_cf_parms_t *cf_parms; ++ wlan_ie_ibss_parms_t *ibss_parms; ++ wlan_ie_tim_t *tim; /* in beacon only, not proberesp */ ++ wlan_ie_erp_t *erp; /* in beacon only, not proberesp */ ++} wlan_fr_beacon_t; ++#define wlan_fr_proberesp wlan_fr_beacon ++#define wlan_fr_proberesp_t wlan_fr_beacon_t ++ ++/*-- IBSS ATIM ------------------------------------*/ ++typedef struct wlan_fr_ibssatim { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ /*-- info elements ----------*/ ++ /* this frame type has a null body */ ++} wlan_fr_ibssatim_t; ++ ++/*-- Disassociation -------------------------------*/ ++typedef struct wlan_fr_disassoc { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ u16 *reason; ++ /*-- info elements ----------*/ ++} wlan_fr_disassoc_t; ++ ++/*-- Association Request --------------------------*/ ++typedef struct wlan_fr_assocreq { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ u16 *cap_info; ++ u16 *listen_int; ++ /*-- info elements ----------*/ ++ wlan_ie_ssid_t *ssid; ++ wlan_ie_supp_rates_t *supp_rates; ++ wlan_ie_supp_rates_t *ext_rates; ++} wlan_fr_assocreq_t; ++ ++/*-- Association Response -------------------------*/ ++typedef struct wlan_fr_assocresp { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ u16 *cap_info; ++ u16 *status; ++ u16 *aid; ++ /*-- info elements ----------*/ ++ wlan_ie_supp_rates_t *supp_rates; ++ wlan_ie_supp_rates_t *ext_rates; ++} wlan_fr_assocresp_t; ++ ++/*-- Reassociation Request ------------------------*/ ++typedef struct wlan_fr_reassocreq { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ u16 *cap_info; ++ u16 *listen_int; ++ u8 *curr_ap; ++ /*-- info elements ----------*/ ++ wlan_ie_ssid_t *ssid; ++ wlan_ie_supp_rates_t *supp_rates; ++ wlan_ie_supp_rates_t *ext_rates; ++} wlan_fr_reassocreq_t; ++ ++/*-- Reassociation Response -----------------------*/ ++typedef struct wlan_fr_reassocresp { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ u16 *cap_info; ++ u16 *status; ++ u16 *aid; ++ /*-- info elements ----------*/ ++ wlan_ie_supp_rates_t *supp_rates; ++ wlan_ie_supp_rates_t *ext_rates; ++} wlan_fr_reassocresp_t; ++ ++/*-- Probe Request --------------------------------*/ ++typedef struct wlan_fr_probereq { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ /*-- info elements ----------*/ ++ wlan_ie_ssid_t *ssid; ++ wlan_ie_supp_rates_t *supp_rates; ++ wlan_ie_supp_rates_t *ext_rates; ++} wlan_fr_probereq_t; ++ ++/*-- Authentication -------------------------------*/ ++typedef struct wlan_fr_authen { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ u16 *auth_alg; ++ u16 *auth_seq; ++ u16 *status; ++ /*-- info elements ----------*/ ++ wlan_ie_challenge_t *challenge; ++} wlan_fr_authen_t; ++ ++/*-- Deauthenication -----------------------------*/ ++typedef struct wlan_fr_deauthen { ++ u16 type; ++ u16 len; ++ wlan_hdr_t *hdr; ++ /*-- fixed fields -----------*/ ++ u16 *reason; ++ /*-- info elements ----------*/ ++} wlan_fr_deauthen_t; ++ ++/* Types for building mgmt frames */ ++ ++/* Warning. Several types used in below structs are ++** in fact variable length. Use structs with such fields with caution */ ++typedef struct auth_frame_body { ++ u16 auth_alg; ++ u16 auth_seq; ++ u16 status; ++ wlan_ie_challenge_t challenge; ++} WLAN_PACKED auth_frame_body_t; ++ ++typedef struct assocresp_frame_body { ++ u16 cap_info; ++ u16 status; ++ u16 aid; ++ wlan_ie_supp_rates_t rates; ++} WLAN_PACKED assocresp_frame_body_t; ++ ++typedef struct reassocreq_frame_body { ++ u16 cap_info; ++ u16 listen_int; ++ u8 current_ap[ETH_ALEN]; ++ wlan_ie_ssid_t ssid; ++/* access to this one is disabled since ssid_t is variable length: */ ++ /* wlan_ie_supp_rates_t rates; */ ++} WLAN_PACKED reassocreq_frame_body_t; ++ ++typedef struct reassocresp_frame_body { ++ u16 cap_info; ++ u16 status; ++ u16 aid; ++ wlan_ie_supp_rates_t rates; ++} WLAN_PACKED reassocresp_frame_body_t; ++ ++typedef struct deauthen_frame_body { ++ u16 reason; ++} WLAN_PACKED deauthen_frame_body_t; ++ ++typedef struct disassoc_frame_body { ++ u16 reason; ++} WLAN_PACKED disassoc_frame_body_t; ++ ++typedef struct probereq_frame_body { ++ wlan_ie_ssid_t ssid; ++ wlan_ie_supp_rates_t rates; ++} WLAN_PACKED probereq_frame_body_t; ++ ++typedef struct proberesp_frame_body { ++ u8 timestamp[8]; ++ u16 beacon_int; ++ u16 cap_info; ++ wlan_ie_ssid_t ssid; ++/* access to these is disabled since ssid_t is variable length: */ ++ /* wlan_ie_supp_rates_t rates; */ ++ /* fhps_t fhps; */ ++ /* dsps_t dsps; */ ++ /* cfps_t cfps; */ ++} WLAN_PACKED proberesp_frame_body_t; ++ ++ ++/*********************************************************************** ++** Functions ++*/ ++ ++/* Helpers for parsing mgmt frames */ ++void wlan_mgmt_decode_ibssatim(wlan_fr_ibssatim_t *f); ++void wlan_mgmt_decode_assocreq(wlan_fr_assocreq_t *f); ++void wlan_mgmt_decode_assocresp(wlan_fr_assocresp_t *f); ++void wlan_mgmt_decode_authen(wlan_fr_authen_t *f); ++void wlan_mgmt_decode_beacon(wlan_fr_beacon_t *f); ++void wlan_mgmt_decode_deauthen(wlan_fr_deauthen_t *f); ++void wlan_mgmt_decode_disassoc(wlan_fr_disassoc_t *f); ++void wlan_mgmt_decode_probereq(wlan_fr_probereq_t *f); ++void wlan_mgmt_decode_proberesp(wlan_fr_proberesp_t *f); ++void wlan_mgmt_decode_reassocreq(wlan_fr_reassocreq_t *f); ++void wlan_mgmt_decode_reassocresp(wlan_fr_reassocresp_t *f); ++ ++/* Helpers for building mgmt frames */ ++static inline u8* ++wlan_fill_ie_ssid(u8 *p, int len, const char *ssid) ++{ ++ struct wlan_ie_ssid *ie = (void*)p; ++ ie->eid = WLAN_EID_SSID; ++ ie->len = len; ++ memcpy(ie->ssid, ssid, len); ++ return p + len + 2; ++} ++/* This controls whether we create 802.11g 'ext supported rates' IEs ++** or just create overlong 'supported rates' IEs instead ++** (non-11g compliant) */ ++#define WE_OBEY_802_11G 1 ++static inline u8* ++wlan_fill_ie_rates(u8 *p, int len, const u8 *rates) ++{ ++ struct wlan_ie_supp_rates *ie = (void*)p; ++#if WE_OBEY_802_11G ++ if (len > 8 ) len = 8; ++#endif ++ /* supported rates (1 to 8 octets) */ ++ ie->eid = WLAN_EID_SUPP_RATES; ++ ie->len = len; ++ memcpy(ie->rates, rates, len); ++ return p + len + 2; ++} ++/* This one wouldn't create an IE at all if not needed */ ++static inline u8* ++wlan_fill_ie_rates_ext(u8 *p, int len, const u8 *rates) ++{ ++ struct wlan_ie_supp_rates *ie = (void*)p; ++#if !WE_OBEY_802_11G ++ return p; ++#endif ++ len -= 8; ++ if (len <= 0) return p; ++ /* ext supported rates */ ++ ie->eid = WLAN_EID_EXT_RATES; ++ ie->len = len; ++ memcpy(ie->rates, rates+8, len); ++ return p + len + 2; ++} ++static inline u8* ++wlan_fill_ie_ds_parms(u8 *p, int channel) ++{ ++ struct wlan_ie_ds_parms *ie = (void*)p; ++ ie->eid = WLAN_EID_DS_PARMS; ++ ie->len = 1; ++ ie->curr_ch = channel; ++ return p + sizeof(*ie); ++} ++static inline u8* ++wlan_fill_ie_ibss_parms(u8 *p, int atim_win) ++{ ++ struct wlan_ie_ibss_parms *ie = (void*)p; ++ ie->eid = WLAN_EID_IBSS_PARMS; ++ ie->len = 2; ++ ie->atim_win = atim_win; ++ return p + sizeof(*ie); ++} ++static inline u8* ++wlan_fill_ie_tim(u8 *p, int rem, int period, int bcast, ++ int ofs, int len, const u8 *vbm) ++{ ++ struct wlan_ie_tim *ie = (void*)p; ++ ie->eid = WLAN_EID_TIM; ++ ie->len = len + 3; ++ ie->dtim_cnt = rem; ++ ie->dtim_period = period; ++ ie->bitmap_ctl = ofs | (bcast!=0); ++ if (vbm) ++ memcpy(ie->virt_bm, vbm, len); /* min 1 byte */ ++ else ++ ie->virt_bm[0] = 0; ++ return p + len + 3 + 2; ++} +Index: linux-2.6.23/drivers/net/wireless/Kconfig +=================================================================== +--- linux-2.6.23.orig/drivers/net/wireless/Kconfig 2008-01-20 21:13:17.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/Kconfig 2008-01-20 21:15:12.000000000 +0000 +@@ -5,6 +5,36 @@ + menu "Wireless LAN" + depends on !S390 + ++config NET_RADIO ++ bool "Wireless LAN drivers (non-hamradio) & Wireless Extensions" ++ select WIRELESS_EXT ++ ---help--- ++ Support for wireless LANs and everything having to do with radio, ++ but not with amateur radio or FM broadcasting. ++ ++ Saying Y here also enables the Wireless Extensions (creates ++ /proc/net/wireless and enables iwconfig access). The Wireless ++ Extension is a generic API allowing a driver to expose to the user ++ space configuration and statistics specific to common Wireless LANs. ++ The beauty of it is that a single set of tool can support all the ++ variations of Wireless LANs, regardless of their type (as long as ++ the driver supports Wireless Extension). Another advantage is that ++ these parameters may be changed on the fly without restarting the ++ driver (or Linux). If you wish to use Wireless Extensions with ++ wireless PCMCIA (PC-) cards, you need to say Y here; you can fetch ++ the tools from ++ <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>. ++ ++config NET_WIRELESS_RTNETLINK ++ bool "Wireless Extension API over RtNetlink" ++ depends on NET_RADIO ++ ---help--- ++ Support the Wireless Extension API over the RtNetlink socket ++ in addition to the traditional ioctl interface (selected above). ++ ++ For now, few tools use this facility, but it might grow in the ++ future. The only downside is that it adds 4.5 kB to your kernel. ++ + config WLAN_PRE80211 + bool "Wireless LAN (pre-802.11)" + depends on NETDEVICES +@@ -650,6 +680,7 @@ config P54_PCI + + source "drivers/net/wireless/iwlwifi/Kconfig" + source "drivers/net/wireless/hostap/Kconfig" ++source "drivers/net/wireless/acx/Kconfig" + source "drivers/net/wireless/bcm43xx/Kconfig" + source "drivers/net/wireless/b43/Kconfig" + source "drivers/net/wireless/b43legacy/Kconfig" +Index: linux-2.6.23/drivers/net/wireless/Makefile +=================================================================== +--- linux-2.6.23.orig/drivers/net/wireless/Makefile 2008-01-20 21:13:17.000000000 +0000 ++++ linux-2.6.23/drivers/net/wireless/Makefile 2008-01-20 21:13:40.000000000 +0000 +@@ -34,6 +34,8 @@ obj-$(CONFIG_PCMCIA_ATMEL) += atmel + + obj-$(CONFIG_PRISM54) += prism54/ + ++obj-$(CONFIG_ACX) += acx/ ++ + obj-$(CONFIG_HOSTAP) += hostap/ + obj-$(CONFIG_BCM43XX) += bcm43xx/ + obj-$(CONFIG_B43) += b43/ |