--- 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 ':' 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 : 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 +#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 /* request_firmware() */ +#include /* 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 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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 "); */ +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, "\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 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) +#include +#endif +#include +#include +#include +#include +#include + +#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 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) +#include +#endif + +/* Linux 2.6.18+ uses */ +#ifndef UTS_RELEASE +#include +#endif + +#include /* required for Lx 2.6.8 ?? */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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 +#include +#include +#include +#include +#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 + +#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<conf.Vpp = + cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; + else if (dflt.vpp1.present & (1<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 + */ + + +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#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<" ); +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 + */ + + +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#include "acx_hw.h" + +#define WLAN_BASE PXA_CS2_PHYS + + +static int +htcuniversal_wlan_start( void ) +{ + htcuniversal_egpio_enable(1<" ); +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 + */ + + +#include +#include +#include +#include + +#include + +#include +#include +#include +#include + +#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 " ); +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 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) +#include +#endif +#include +#include +#include +/* #include */ /* required for 2.4.x kernels; verify_write() */ +#include +#include +#include + +#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 ap 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 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) +#include +#endif + +/* Linux 2.6.18+ uses */ +#ifndef UTS_RELEASE +#include +#endif + +#include /* required for Lx 2.6.8 ?? */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "acx.h" +#include "acx_hw.h" + +/*********************************************************************** +*/ + +#define CARD_EEPROM_ID_SIZE 6 + +#include + +#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; inum_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 " ); +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 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) +#include +#endif + +/* Linux 2.6.18+ uses */ +#ifndef UTS_RELEASE +#include +#endif + +#include /* required for Lx 2.6.8 ?? */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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 (ombined firmware image file, radio-specific) or two files (radio-less base image file *plus* separate 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 +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#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 , Roman Moravcik "); +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=DOT11_RATE_6) return DOT11_MOD_OFDM; */ + return default_modulation[r_enum]; + } + if(suffix=='c') { + if(r_enumDOT11_RATE_11) return -EINVAL; + return DOT11_MOD_CCK; + } + if(suffix=='p') { + if(r_enumDOT11_RATE_33) return -EINVAL; + return DOT11_MOD_PBCC; + } + if(suffix=='o') { + if(r_enumINT_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 +** Andreas Mohr +** +** LOCKING +** callback functions called by USB core are running in interrupt context +** and thus have names with _i_. +*/ +#define ACX_USB 1 + +#include +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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 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 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18) +#include +#endif +#include +#include +#include +#include + +#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 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 from Orinoco AP */ + /* 80 06 00 60 1D 2C 3B 00 */ + case WLAN_EID_UNKNOWN133: + /* was seen by David Bronaugh 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 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 + . + +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/