diff options
author | Chris Larson <clarson@kergoth.com> | 2004-11-25 10:19:50 +0000 |
---|---|---|
committer | Chris Larson <clarson@kergoth.com> | 2004-11-25 10:19:50 +0000 |
commit | 119b59cd0df00269bfe51d906657193217b8c884 (patch) | |
tree | be4bc7f812a9df2c6b3f17e6c3cc9bfafad07253 /linux/openslug-kernel-2.6.9 | |
parent | c985a77fad25302d576fbcf92149c983887bc0b9 (diff) |
Remove the EOLN_NATIVE flag from a ton of files (patches & the like for which line ending conversions can break things).
BKrev: 41a5b1c6eA2OPeQrDQEgEwAmKXvQJg
Diffstat (limited to 'linux/openslug-kernel-2.6.9')
-rw-r--r-- | linux/openslug-kernel-2.6.9/nslu2-io.c | 651 | ||||
-rw-r--r-- | linux/openslug-kernel-2.6.9/nslu2-part.c | 120 | ||||
-rw-r--r-- | linux/openslug-kernel-2.6.9/nslu2-pci.c | 87 | ||||
-rw-r--r-- | linux/openslug-kernel-2.6.9/nslu2-setup.c | 132 | ||||
-rw-r--r-- | linux/openslug-kernel-2.6.9/nslu2.h | 43 | ||||
-rw-r--r-- | linux/openslug-kernel-2.6.9/x1205-rtc.c | 548 |
6 files changed, 1581 insertions, 0 deletions
diff --git a/linux/openslug-kernel-2.6.9/nslu2-io.c b/linux/openslug-kernel-2.6.9/nslu2-io.c index e69de29bb2..ad5bdc221d 100644 --- a/linux/openslug-kernel-2.6.9/nslu2-io.c +++ b/linux/openslug-kernel-2.6.9/nslu2-io.c @@ -0,0 +1,651 @@ +//============================================================================= +// +// nslu2-io.c version 0.1.0 +// Author: Karen Spearel <kas11 at tampabay.rr.com> +// please report problems/bugs directly to the address above +// +// NOTE: THIS IS INCOMPLETE. INCLUDED ONLY TO KEEP FROM BREAKING THE BUILD, +// IT BEEPS AND SENDS A MESSAGE TO /proc/poweroff. EVENTUALLY IT +// WILL TALK TO THE n2_pbuttond DAEMON. EVENTUALLY THE LED DRIVER +// WILL TALK TO SOME USERLAND APP BUT ***NOT*** THE NASTY SETLEDS. +// +//============================================================================= +// GPIO Function State +// 0 Red LED Status +// 1 Green LED Ready = 1 +// 2 Disk 2 LED On = 0 +// 3 Disk 1 LED On = 0 +// 4 Buzzer +// 5 Power Button Pressed = 1 +// 8 Power Down Output = 1 powers down N2 +// 12 Reset Pressed = 0 +//============================================================================= +// this driver is N2 specific and is purposely designed to do the minimum +// necessary to provide the necessary services given the limited memory resources +// of the N2. As OpenSlug develops, addition features will be added as +// suggested by community leadership. +// +// The Userland apps such as SetLeds are just to crufty to bother with. +// This driver makes no attempt to do so...one day a Userland app will appear +// ...until then, this does very little. +//============================================================================= + +#include <linux/config.h> +#include <linux/version.h> +#include <linux/module.h> +#include <linux/utsname.h> +#include <linux/kernel.h> +#include <linux/major.h> +#include <linux/string.h> +#include <linux/proc_fs.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/miscdevice.h> +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/moduleparam.h> +#include <linux/timer.h> + +#include <asm/system.h> +#include <asm/uaccess.h> +#include <asm/hardware.h> +#include <asm-arm/irq.h> +#include <asm-arm/delay.h> + +// Print kernel error +#define P_ERROR(args...) \ + printk(KERN_ERR DRV_NAME ": " args) +// Print kernel warning +#define P_WARN(args...) \ + printk(KERN_WARNING DRV_NAME ": " args) +// Print kernel notice +#define P_NOTICE(args...) \ + printk(KERN_NOTICE DRV_NAME ": " args) +// Print kernel info +#define P_INFO(args...) \ + printk(KERN_INFO DRV_NAME ": " args) +// Print verbose message. Enabled/disabled by 'log_level' param +#define P_VERBOSE(args...) \ + if (log_level >= 1) printk(DRV_NAME ": " args) +// Print debug message. Enabled/disabled by 'log_level' param +#define P_DEBUG(args...) \ + if (log_level >= 2) { \ + printk("%s: %s()\n", DRV_NAME, __FUNCTION__); \ + printk(args); } + +#ifdef DEBUG +// Print trace message +#define TRACE \ + if (log_level >= 2) printk("%s: %s(): line %d\n", \ + DRV_NAME, __FUNCTION__, __LINE__) +#else +// no trace +#define TRACE +#endif + +#define VERSION "0.1.1" + +#define N2RB_MAJOR 60 +#define N2PB_MAJOR 61 +#define N2BZ_MAJOR 62 +#define N2LM_MAJOR 126 + +#define N2PB_IRQ 22 //gpio5 +#define N2RB_IRQ 29 //gpio12 + +#define N2_BEEP_DUR_LONG 2000 +#define N2_BEEP_DUR_MED 400 +#define N2_BEEP_DUR_SHORT 100 +#define N2_BEEP_PITCH_HIGH 250 +#define N2_BEEP_PITCH_MED 500 +#define N2_BEEP_PITCH_LOW 1000 +#define N2_LONG_DELAY 30000 + +#define N2_BZ_GPIO 4 +#define N2_PB_GPIO 5 +#define N2_PO_GPIO 8 //power off +#define N2_RB_GPIO 12 + +#define GPIO_BZ_BM 0x0010 //b0000 0000 0001 0000 +#define GPIO_PB_BM 0x0020 //b0000 0000 0010 0000 +#define GPIO_PO_BM 0x0100 //b0000 0001 0000 0000 +#define GPIO_RB_BM 0x1000 //b0001 0000 0000 0000 + +#define NOERR 0 + +#define RB_DELAY 50 +#define PB_DELAY 20 + +#define PWR_OFF_STR "poweroff" + + +// ioctls -- THESE NEED TO BE PROPERLY DEFINED + +#define N2LM_ON 0 +#define N2LM_OFF 1 +#define N2LM_BLINK 2 +#define N2LM_ALT 3 +#define N2LM_ALL_ON 4 +#define N2LM_ALL_OFF 5 + +#define PHYS_LEDS 4 +#define BLINK_DELAY 25 + +static int n2lm_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg); + + + +// OR Masks to turn these LEDs ON + +#define RS_RED_ON 0x00000001 //0b0000 0000 0000 0010 +#define RS_GRN_ON 0x00000002 //0b0000 0000 0000 0001 +#define RS_YEL_ON 0x00000003 //0b0000 0000 0000 0011 + +// AND Masks to turn these LEDs OFF + +#define RS_RED_OFF 0xfffffffe //0b1111 1111 1111 1101 +#define RS_GRN_OFF 0xfffffffd //0b1111 1111 1111 1110 +#define RS_YEL_OFF 0xfffffffc //0b1111 1111 1111 1100 + +// AND Masks to turn these LEDs ON + +#define DISK1_ON 0xfffffff7 //0b1111 1111 1111 0111 +#define DISK2_ON 0xfffffffb //0b1111 1111 1111 1011 + +// Or Masks to turn these LEDs OFF + +#define DISK1_OFF 0x00000008 //0b0000 0000 0000 1000 +#define DISK2_OFF 0x00000004 //0b0000 0000 0000 0100 + +// EOR masks for toggling LEDs on/off + +#define RS_RG_ALT 0x00000003 //eor mask to toggle rs rg bits +#define RS_GRN_TGL 0x00000002 +#define RS_RED_TGL 0x00000001 +#define DISK1_TGL 0x00000008 +#define DISK2_TGL 0x00000004 + +// The LED names for switches + +#define LED_RS_RED 0 +#define LED_RS_GRN 1 +#define LED_DISK1 2 +#define LED_DISK2 3 +#define LED_ALL 4 + +static long init_jiffy = 0; //jiffies at init time +static int rb_presses = 0; //number of reset button presses + +DECLARE_WAIT_QUEUE_HEAD(n2rb_waitq); +DECLARE_WAIT_QUEUE_HEAD(n2pb_waitq); + +static struct timer_list n2lm_rsg_timer; //rs green +static struct timer_list n2lm_rsr_timer; //rs red +static struct timer_list n2lm_d1_timer; //drive 1 +static struct timer_list n2lm_d2_timer; //drive 2 +static struct timer_list n2rb_timer; +static struct timer_list n2pb_timer; + + +//================================================================================================== +// +// Blinking is handled entirely by the 4 timer handlers. On timeout, the bit in the +// GPIO output register is xor'd with a mask corresponding to the selected led which simply +// flips that bit. No record of what any of the other leds is doing is needed. +// +//================================================================================================== +// this blinks rs green or green/yellow if rs red is on +static void n2lm_rsg_handler(unsigned long data) +{ + *IXP4XX_GPIO_GPOUTR ^= RS_GRN_TGL; //flip the led + n2lm_rsg_timer.expires = jiffies + BLINK_DELAY; //next timeout + add_timer(&n2lm_rsg_timer); //reinit timer + return; +} + +// this blinks or alternates rs red green... inited wit green on/red off +static void n2lm_rsr_handler(unsigned long data) +{ + *IXP4XX_GPIO_GPOUTR ^= n2lm_rsr_timer.data; + n2lm_rsr_timer.expires = jiffies + BLINK_DELAY; + add_timer(&n2lm_rsr_timer); + return; +} +// blinks disk 1 +static void n2lm_d1_handler(unsigned long data) +{ + *IXP4XX_GPIO_GPOUTR ^= DISK1_TGL; + n2lm_d1_timer.expires = jiffies + BLINK_DELAY; + add_timer(&n2lm_d1_timer); + return; +} +// blinks disk 2 +static void n2lm_d2_handler(unsigned long data) +{ + *IXP4XX_GPIO_GPOUTR ^= DISK2_TGL; + n2lm_d2_timer.expires = jiffies + BLINK_DELAY; + add_timer(&n2lm_d2_timer); + return; +} + +//================================================================================================== + +static void n2lm_timer_start(unsigned long led) +{ + + printk(KERN_DEBUG "timer: %ld\n",led); + + switch(led) { + case LED_RS_RED: + n2lm_rsr_timer.expires = jiffies + BLINK_DELAY; + n2lm_rsr_timer.function = n2lm_rsr_handler; + add_timer(&n2lm_rsr_timer); + break; + + case LED_RS_GRN: + n2lm_rsg_timer.expires = jiffies + BLINK_DELAY; + n2lm_rsg_timer.function = n2lm_rsg_handler; + add_timer(&n2lm_rsg_timer); + break; + + case LED_DISK1: + n2lm_d1_timer.expires = jiffies + BLINK_DELAY; + n2lm_d1_timer.function = n2lm_d1_handler; + add_timer(&n2lm_d1_timer); + break; + + case LED_DISK2: + n2lm_d2_timer.expires = jiffies + BLINK_DELAY; + n2lm_d2_timer.function = n2lm_d2_handler; + add_timer(&n2lm_d2_timer); + break; + + default: + break; + } + return; +} + +//================================================================================================== + +static void n2lm_timer_stop(unsigned long led) +{ + switch (led) { + case LED_RS_RED: + del_timer(&n2lm_rsr_timer); + break; + case LED_RS_GRN: + del_timer(&n2lm_rsg_timer); + break; + case LED_DISK1: + del_timer(&n2lm_d1_timer); + break; + case LED_DISK2: + del_timer(&n2lm_d2_timer); + break; + default: + break; + } + return; +} + +//-------------------------------------------------------------------------------------------------- + +static void n2lm_timer_stop_all(void) +{ + del_timer(&n2lm_rsg_timer); + del_timer(&n2lm_rsr_timer); + del_timer(&n2lm_d1_timer); + del_timer(&n2lm_d2_timer); + return; +} +//-------------------------------------------------------------------------------------------------- + +static void n2lm_ledon(unsigned long led) +{ + + printk("ledon: %ld\n", led); + + switch (led) { + case LED_RS_RED: + *IXP4XX_GPIO_GPOUTR |= RS_RED_ON; //1 + return; + case LED_RS_GRN: + *IXP4XX_GPIO_GPOUTR |= RS_GRN_ON; //2 + return; + case LED_DISK1: + *IXP4XX_GPIO_GPOUTR &= DISK1_ON; //0xfffffffb + return; + case LED_DISK2: + *IXP4XX_GPIO_GPOUTR &= DISK2_ON; //0xfffffff7 + return; + case LED_ALL: //all green + *IXP4XX_GPIO_GPOUTR |= RS_GRN_ON; + *IXP4XX_GPIO_GPOUTR &= (DISK1_ON & DISK2_ON); + return; + } +} + +//-------------------------------------------------------------------------------------------------- + +static void n2lm_ledoff(unsigned long led) +{ + + switch (led) { + case LED_RS_RED: + *IXP4XX_GPIO_GPOUTR &= RS_RED_OFF; //0xffffffffe + return; + case LED_RS_GRN: + *IXP4XX_GPIO_GPOUTR &= RS_GRN_OFF; //0xfffffffd + return; + case LED_DISK1: + *IXP4XX_GPIO_GPOUTR |= DISK1_OFF; //0x00000004 + return; + case LED_DISK2: + *IXP4XX_GPIO_GPOUTR |= DISK2_OFF; //0x00000008 + return; + case LED_ALL: + *IXP4XX_GPIO_GPOUTR &= (RS_GRN_OFF & RS_RED_OFF); + *IXP4XX_GPIO_GPOUTR |= (DISK1_OFF | DISK2_OFF); + } +} + +//================================================================================================== + +static int n2lm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long led) +{ + + printk(KERN_DEBUG "cmd=%d, led=%ld\n", cmd, led); + + if (led < 0 || led >= PHYS_LEDS) + return -EINVAL; + + switch (cmd ) { + case N2LM_ON: + n2lm_timer_stop(led); + n2lm_ledon(led); + break; + + case N2LM_OFF: + n2lm_timer_stop(led); + n2lm_ledoff(led); + break; + + case N2LM_BLINK: + n2lm_ledon(led); + if (led == LED_RS_RED) + n2lm_rsr_timer.data = RS_RED_TGL; + if (led == LED_RS_GRN) + n2lm_rsr_timer.data = RS_GRN_TGL; + n2lm_timer_start(led); + break; + + case N2LM_ALT: + if (led == LED_RS_RED) + { + n2lm_ledon(LED_RS_GRN); + n2lm_ledoff(LED_RS_RED); + n2lm_rsr_timer.data = RS_RG_ALT; + n2lm_timer_start(LED_RS_RED); + break; + } else + return -EINVAL; + + case N2LM_ALL_ON: + n2lm_timer_stop_all(); + n2lm_ledon(LED_ALL); + break; + + case N2LM_ALL_OFF: + n2lm_timer_stop_all(); + n2lm_ledoff(LED_ALL); + break; + + default: + return -EINVAL; + } + + return NOERR; +} + +static struct file_operations n2lm_fops = { + .owner = THIS_MODULE, + .ioctl = n2lm_ioctl, +}; +//================================================================================================== +// We can't do anything fancy here since the system tick rate is far below that required to +// generate a desirable tone. Therefore we haven't much choice but to use a busy loop until +// I get up to speed on the timers. The saving grace is that for the normal uses, nothing +// important should be haprepening. +//================================================================================================== + +static void n2_beep(int tone_delay, int duration) +{ + int i; + + *IXP4XX_GPIO_GPOER &= ~GPIO_BZ_BM; + + for (i = 1; i < duration; i++) { + *IXP4XX_GPIO_GPOUTR &= ~GPIO_BZ_BM; + udelay(tone_delay); + *IXP4XX_GPIO_GPOUTR |= GPIO_BZ_BM; + udelay(tone_delay); + } + *IXP4XX_GPIO_GPOER |= GPIO_BZ_BM; + + return; +} + +//================================================================================================== + +static irqreturn_t n2pb_handler (int irq, void *dev_id, struct pt_regs *regs) +{ + void *ret; + + wake_up(&n2pb_waitq); + remove_proc_entry(PWR_OFF_STR, NULL); //no parent + n2_beep(N2_BEEP_PITCH_MED, N2_BEEP_DUR_MED); + ret = create_proc_entry(PWR_OFF_STR, 0, NULL); + +// WARNING: This is RUDE...it unconditionally pulls the power plug +// your data will be at risk...since this is just a test system +// I am leaving it enabled...eventually userland needs to get the +// message, do an orderly shutdown and use an ioctl or something in +// /proc/powerdowm to actually have us pull the plug. + + *IXP4XX_GPIO_GPOER &= ~GPIO_PO_BM; // enable the pwr cntl gpio + *IXP4XX_GPIO_GPOUTR |= GPIO_PO_BM; // do the deed + + printk(KERN_DEBUG "cpe ret = %p\n", ret); + return IRQ_HANDLED; +} + +//================================================================================================== +// +//static void do_rb_timeout(unsigned long data) +//{ +// int i; +// +// for (i = 0; i < rb_presses; i++) +// n2_beep(N2_BEEP_PITCH_MED,N2_BEEP_DUR_SHORT); +// return; +//} +// +//================================================================================================== +// does nothing -- waiting for userland to define +// This thing is sorta braindead...edge triggered IRQs aren't available in the drivers yet...so +// we hang in a loop until the button is no longer pressed +static irqreturn_t n2rb_handler (int irq, void *dev_id, struct pt_regs *regs) +{ + + unsigned long test[] = { 5,0, 0,0, 1,0, 0,1, 1,1, 0,2, 1,2, 0,3, 1,3, 2,0, 1,0, 2,1, 1,1, 2,2, 1,2, 2,3, 1,3, 5,0, 3,1, 5,0, 4,0 }; + + printk(KERN_DEBUG "Reset Entry IRQ=%d Presses= %d Jiffies= %08lx\n", irq, rb_presses, jiffies); + + wake_up(&n2rb_waitq); + while ((*IXP4XX_GPIO_GPINR & GPIO_RB_BM) == 0) + ; //wait for button release + + if (rb_presses == 21) { + rb_presses = 0; + } + n2lm_ioctl(NULL,NULL,test[rb_presses*2], test[rb_presses*2+1]); + rb_presses++; + +// if (rb_presses == 0) { +// init_jiffy = jiffies; +// init_timer (&n2rb_timer); +// n2rb_timer.function = do_rb_timeout; +// }; +// +// if (rb_presses == 8) +// rb_presses = 0; +// if (rb_presses & 1) +// n2lm_ledon(test[rb_presses]); +// else +// n2lm_ledoff(test[rb_presses]); +// +// n2rb_timer.expires = (jiffies + RB_DELAY); +// add_timer (&n2rb_timer); +// if (rb_presses < 5) { +// if (rb_presses > 0) +// n2lm_ledoff(rb_presses); +// n2lm_ledon(++rb_presses); +// n2lm_timer_start(rb_presses); +// }; + + printk(KERN_DEBUG "Reset Exit IRQ=%d Presses= %d Jiffies= %08lx\n", irq, rb_presses, jiffies); + return IRQ_HANDLED; +} + +//================================================================================================== +// What to do here is majorly undetermined... + +static int n2rb_read (struct file *filp, char __user *buffer, size_t count, loff_t *ppos) +{ + printk(KERN_DEBUG "Reset Button Wait\n"); + interruptible_sleep_on(&n2rb_waitq); + return copy_to_user(buffer, "reset", 5) ? -EFAULT : 5; + +} + +//================================================================================================== +// What to do here is majorly undetermined... + +static int n2pb_read (struct file *filp, char __user *buffer, size_t count, loff_t *ppos) +{ + printk(KERN_DEBUG "Power Button Wait\n"); + interruptible_sleep_on(&n2pb_waitq); + return copy_to_user(buffer, "poweroff", 8) ? -EFAULT : 8; + +} + +//-------------------------------------------------------------------------------------------------- + +static struct file_operations n2rb_fops = { + .owner = THIS_MODULE, + .read = n2rb_read, +}; + +//-------------------------------------------------------------------------------------------------- + +static struct file_operations n2pb_fops = { + .owner = THIS_MODULE, + .read = n2pb_read, +}; + +//================================================================================================== + +static void n2iom_initarch(void) +{ + printk(KERN_DEBUG "setup_interrupts - jiffies=%ld init_jiffy=%ld\n", jiffies, init_jiffy); + + *IXP4XX_GPIO_GPISR = 0x20400000; // read the 2 irqs to clr + gpio_line_config(N2_RB_GPIO, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); + gpio_line_isr_clear(N2_RB_GPIO); + gpio_line_config(N2_PB_GPIO, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_HIGH); + gpio_line_isr_clear(N2_PB_GPIO); + + init_timer(&n2lm_rsg_timer); + init_timer(&n2lm_rsr_timer); + init_timer(&n2lm_d1_timer); + init_timer(&n2lm_d2_timer); + init_timer(&n2rb_timer); + init_timer(&n2pb_timer); + + *IXP4XX_GPIO_GPOER &= 0xfffffff0; //enable gpio 0-3 + *IXP4XX_GPIO_GPOUTR |= 0x00000003; //turn off the leds + *IXP4XX_GPIO_GPOUTR &= 0xfffffffc; + n2lm_ledon(LED_ALL); + n2_beep(N2_BEEP_PITCH_MED, N2_BEEP_DUR_SHORT); + n2lm_ledoff(LED_ALL); + + return; +} + +//================================================================================================== + +static int __init n2iom_init(void) +{ + printk(KERN_INFO "NSLU2 Misc I/O Driver Version %s (C) Karen Spearel\n", VERSION); + + init_jiffy = jiffies; + printk(KERN_DEBUG "init_jiffy=%ld\n",init_jiffy); + n2iom_initarch(); + + if (register_chrdev(N2RB_MAJOR, "n2_rb", &n2pb_fops) < NOERR) { + printk(KERN_DEBUG "Reset Button Major %d not available\n", N2RB_MAJOR); + return -EBUSY; + } + if (register_chrdev(N2PB_MAJOR, "n2_pb", &n2rb_fops) < NOERR) { + printk(KERN_DEBUG "Power Button Major %d not available\n", N2PB_MAJOR); + return -EBUSY; + } + if (register_chrdev(N2LM_MAJOR, "n2_leds", &n2lm_fops) < NOERR) { + printk(KERN_DEBUG "Led Manager Major %d not available\n", N2LM_MAJOR); + return -EBUSY; + } + if (request_irq(N2RB_IRQ, &n2rb_handler, SA_INTERRUPT, "n2_rb", NULL) < NOERR) { + printk(KERN_DEBUG "Reset Button IRQ %d not available\n", N2RB_IRQ); + return -EIO; + } + if (request_irq(N2PB_IRQ, &n2pb_handler, SA_INTERRUPT, "n2_pb", NULL) < NOERR) { + printk(KERN_DEBUG "Power Button IRQ %d not available\n", N2PB_IRQ); + return -EIO; + } + + enable_irq(N2PB_IRQ); + enable_irq(N2RB_IRQ); + return (NOERR); +} + +//================================================================================================== + +static void __exit n2iom_exit(void) +{ + remove_proc_entry(PWR_OFF_STR, NULL); + del_timer(&n2rb_timer); + free_irq(N2RB_IRQ,NULL); + unregister_chrdev(N2PB_MAJOR, "n2pb"); + del_timer(&n2pb_timer); + free_irq(N2PB_IRQ, NULL); + unregister_chrdev(N2RB_MAJOR, "n2rb" ); + del_timer(&n2lm_rsg_timer); + del_timer(&n2lm_rsr_timer); + del_timer(&n2lm_d1_timer); + del_timer(&n2lm_d2_timer); + unregister_chrdev(N2LM_MAJOR, "n2lm" ); +} + +module_init (n2iom_init); +module_exit (n2iom_exit); + +MODULE_AUTHOR("Karen Spearel <kas11@tampabay.rr.com>"); +MODULE_DESCRIPTION("NSLU2 Buttons/LEDs IO Driver"); +MODULE_LICENSE("GPL"); +static int debug = 7; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Debugging enabled = 1"); + diff --git a/linux/openslug-kernel-2.6.9/nslu2-part.c b/linux/openslug-kernel-2.6.9/nslu2-part.c index e69de29bb2..6fbf952e2a 100644 --- a/linux/openslug-kernel-2.6.9/nslu2-part.c +++ b/linux/openslug-kernel-2.6.9/nslu2-part.c @@ -0,0 +1,120 @@ +/* + * nslu2-part.c + * + * Maintainers: http://www.nslu2-linux.org/ + * Initial port: Mark Rakes <mrakes AT mac.com> + * + * "Parse" the fixed partition table of the Linksys NSLU2 and + * produce a Linux partition array to match. + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/vmalloc.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> + +/* info we know about the NSLU2's flash setup: + * + * Num Partition offset size + * --- --------- ---------- ----------- + * 0 RedBoot 0x00000000 0x00040000 + * 1 System Configuration 0x00040000 0x00020000 + * 2 Kernel 0x00060000 0x00100000 + * 3 Ramdisk 0x00160000 0x006a0000 + */ + #define NSLU2_NUM_FLASH_PARTITIONS 4 + #define NSLU2_FLASH_PART0_NAME "RedBoot" + #define NSLU2_FLASH_PART0_OFFSET 0x00000000 + #define NSLU2_FLASH_PART0_SIZE 0x00040000 + #define NSLU2_FLASH_PART1_NAME "System Configuration" + #define NSLU2_FLASH_PART1_OFFSET (NSLU2_FLASH_PART0_OFFSET + NSLU2_FLASH_PART0_SIZE) + #define NSLU2_FLASH_PART1_SIZE 0x00020000 + #define NSLU2_FLASH_PART2_NAME "Kernel" + #define NSLU2_FLASH_PART2_OFFSET (NSLU2_FLASH_PART1_OFFSET + NSLU2_FLASH_PART1_SIZE) + #define NSLU2_FLASH_PART2_SIZE 0x00100000 + #define NSLU2_FLASH_PART3_NAME "Ramdisk" + #define NSLU2_FLASH_PART3_OFFSET (NSLU2_FLASH_PART2_OFFSET + NSLU2_FLASH_PART2_SIZE) + #define NSLU2_FLASH_PART3_SIZE 0x006a0000 + +static int parse_nslu2_partitions(struct mtd_info *master, + struct mtd_partition **pparts, + unsigned long flash_start) +{ + struct mtd_partition *parts; + int ret = 0, namelen = 0; + char *names; + + namelen = strlen(NSLU2_FLASH_PART0_NAME) + + strlen(NSLU2_FLASH_PART1_NAME) + + strlen(NSLU2_FLASH_PART2_NAME) + + strlen(NSLU2_FLASH_PART3_NAME) + + NSLU2_NUM_FLASH_PARTITIONS; /*4 strings + each terminator */ + + parts = kmalloc(sizeof(*parts)*NSLU2_NUM_FLASH_PARTITIONS + namelen, GFP_KERNEL); + if (!parts) { + ret = -ENOMEM; + goto out; + } + + memset(parts, 0, sizeof(*parts)*NSLU2_NUM_FLASH_PARTITIONS + namelen); + names = (char *)&parts[NSLU2_NUM_FLASH_PARTITIONS]; + + /* RedBoot partition */ + parts[0].size = NSLU2_FLASH_PART0_SIZE; + parts[0].offset = NSLU2_FLASH_PART0_OFFSET; + parts[0].name = NSLU2_FLASH_PART0_NAME; + parts[0].mask_flags = MTD_WRITEABLE; /* readonly */ + strcpy(names, NSLU2_FLASH_PART0_NAME); + names += strlen(names)+1; + /* System Configuration */ + parts[1].size = NSLU2_FLASH_PART1_SIZE; + parts[1].offset = NSLU2_FLASH_PART1_OFFSET; + parts[1].name = NSLU2_FLASH_PART1_NAME; + parts[1].mask_flags = MTD_WRITEABLE; /* readonly */ + strcpy(names, NSLU2_FLASH_PART1_NAME); + names += strlen(names)+1; + /* Kernel */ + parts[2].size = NSLU2_FLASH_PART2_SIZE; + parts[2].offset = NSLU2_FLASH_PART2_OFFSET; + parts[2].name = NSLU2_FLASH_PART2_NAME; + parts[2].mask_flags = MTD_WRITEABLE; /* readonly */ + strcpy(names, NSLU2_FLASH_PART2_NAME); + names += strlen(names)+1; + /* Ramdisk */ + parts[3].size = NSLU2_FLASH_PART3_SIZE; + parts[3].offset = NSLU2_FLASH_PART3_OFFSET; + parts[3].name = NSLU2_FLASH_PART3_NAME; + parts[3].mask_flags = MTD_WRITEABLE; /* readonly */ + strcpy(names, NSLU2_FLASH_PART3_NAME); + names += strlen(names)+1; + + ret = NSLU2_NUM_FLASH_PARTITIONS; + *pparts = parts; + out: + return ret; +} + +static struct mtd_part_parser nslu2_parser = { + .owner = THIS_MODULE, + .parse_fn = parse_nslu2_partitions, + .name = "NSLU2", +}; + +static int __init nslu2_parser_init(void) +{ + return register_mtd_parser(&nslu2_parser); +} + +static void __exit nslu2_parser_exit(void) +{ + deregister_mtd_parser(&nslu2_parser); +} + +module_init(nslu2_parser_init); +module_exit(nslu2_parser_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Mark Rakes"); +MODULE_DESCRIPTION("Parsing code for NSLU2 flash tables"); diff --git a/linux/openslug-kernel-2.6.9/nslu2-pci.c b/linux/openslug-kernel-2.6.9/nslu2-pci.c index e69de29bb2..7327c65a4f 100644 --- a/linux/openslug-kernel-2.6.9/nslu2-pci.c +++ b/linux/openslug-kernel-2.6.9/nslu2-pci.c @@ -0,0 +1,87 @@ +/* + * arch/arm/mach-ixp4xx/nslu2-pci.c + * + * NSLU2 board-level PCI initialization + * + * based on ixdp425-pci.c: + * Copyright (C) 2002 Intel Corporation. + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + * Maintainer: http://www.nslu2-linux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +// GPIO 8 is used as the power input so is not free for use as a PCI IRQ +// However, all the common PCI setup code presumes the standard 4 PCI +// interrupts are available. So we compromise...we don't enable the +// IRQ on Pin 8 but we let + +#include <linux/config.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/delay.h> + +#include <asm/mach/pci.h> +#include <asm/irq.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> + +void __init nslu2_pci_preinit(void) +{ + gpio_line_config(NSLU2_PCI_INTA_PIN, + IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); + gpio_line_config(NSLU2_PCI_INTB_PIN, + IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); + gpio_line_config(NSLU2_PCI_INTC_PIN, + IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); +// gpio_line_config(NSLU2_PCI_INTD_PIN, +// IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); + + gpio_line_isr_clear(NSLU2_PCI_INTA_PIN); + gpio_line_isr_clear(NSLU2_PCI_INTB_PIN); + gpio_line_isr_clear(NSLU2_PCI_INTC_PIN); +// gpio_line_isr_clear(NSLU2_PCI_INTD_PIN); + + ixp4xx_pci_preinit(); +} + +static int __init nslu2_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + static int pci_irq_table[NSLU2_PCI_IRQ_LINES] = { + IRQ_NSLU2_PCI_INTA, + IRQ_NSLU2_PCI_INTB, + IRQ_NSLU2_PCI_INTC, +// IRQ_NSLU2_PCI_INTD + }; + + int irq = -1; + + if (slot >= 1 && slot <= NSLU2_PCI_MAX_DEV && + pin >= 1 && pin <= NSLU2_PCI_IRQ_LINES) { + irq = pci_irq_table[(slot + pin - 2) % 3]; // ! % 4 kas11 + } + + return irq; +} + +struct hw_pci __initdata nslu2_pci = { + .nr_controllers = 1, + .preinit = nslu2_pci_preinit, + .swizzle = pci_std_swizzle, + .setup = ixp4xx_setup, + .scan = ixp4xx_scan_bus, + .map_irq = nslu2_map_irq, +}; + +int __init nslu2_pci_init(void) //monkey see, monkey do +{ + if (machine_is_nslu2()) + pci_common_init(&nslu2_pci); + return 0; +} + +subsys_initcall(nslu2_pci_init); + diff --git a/linux/openslug-kernel-2.6.9/nslu2-setup.c b/linux/openslug-kernel-2.6.9/nslu2-setup.c index e69de29bb2..5698ea9813 100644 --- a/linux/openslug-kernel-2.6.9/nslu2-setup.c +++ b/linux/openslug-kernel-2.6.9/nslu2-setup.c @@ -0,0 +1,132 @@ +/* + * arch/arm/mach-ixp4xx/nslu2-setup.c + * + * NSLU2 board-setup + * + * based ixdp425-setup.c: + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + * Author: Mark Rakes <mrakes at mac.com> + * Maintainers: http://www.nslu2-linux.org/ + * + * Fixed missing init_time in MACHINE_START kas11 10/22/04 + * Changed to conform to new style __init ixdp425 kas11 10/22/04 + */ + +#include <linux/init.h> +#include <linux/device.h> +#include <linux/serial.h> +#include <linux/tty.h> +#include <linux/serial_core.h> + +#include <asm/types.h> +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> + +#ifdef __ARMEB__ +#define REG_OFFSET 3 +#else +#define REG_OFFSET 0 +#endif + +/* + * NSLU2 uses only one serial port + */ +static struct uart_port nslu2_serial_ports[] = { + { + .membase = (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET), + .mapbase = (IXP4XX_UART1_BASE_PHYS), + .irq = IRQ_IXP4XX_UART1, + .flags = UPF_SKIP_TEST, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = IXP4XX_UART_XTAL, + .line = 0, + .type = PORT_XSCALE, + .fifosize = 32 + } +#if 0 + , { + .membase = (char*)(IXP4XX_UART2_BASE_VIRT + REG_OFFSET), + .mapbase = (IXP4XX_UART2_BASE_PHYS), + .irq = IRQ_IXP4XX_UART2, + .flags = UPF_SKIP_TEST, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = IXP4XX_UART_XTAL, + .line = 1, + .type = PORT_XSCALE, + .fifosize = 32 + } +#endif +}; + +void __init nslu2_map_io(void) +{ + early_serial_setup(&nslu2_serial_ports[0]); +#if 0 + early_serial_setup(&nslu2_serial_ports[1]); +#endif + ixp4xx_map_io(); +} + +static struct flash_platform_data nslu2_flash_data = { + .map_name = "cfi_probe", + .width = 2, +}; + +static struct resource nslu2_flash_resource = { + .start = NSLU2_FLASH_BASE, + .end = NSLU2_FLASH_BASE + NSLU2_FLASH_SIZE, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device nslu2_flash = { + .name = "IXP4XX-Flash", + .id = 0, + .dev = { + .platform_data = &nslu2_flash_data, + }, + .num_resources = 1, + .resource = &nslu2_flash_resource, +}; + +static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = { + .sda_pin = NSLU2_SDA_PIN, + .scl_pin = NSLU2_SCL_PIN, +}; + +static struct platform_device nslu2_i2c_controller = { + .name = "IXP4XX-I2C", + .id = 0, + .dev = { + .platform_data = &nslu2_i2c_gpio_pins, + }, + .num_resources = 0 +}; + +static struct platform_device *nslu2_devices[] __initdata = { + &nslu2_i2c_controller, + &nslu2_flash +}; + +static void __init nslu2_init(void) +{ + platform_add_devices(&nslu2_devices, ARRAY_SIZE(nslu2_devices)); +} + +MACHINE_START(NSLU2, "Linksys NSLU2") + MAINTAINER("www.nslu2-linux.org") + BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS, + IXP4XX_PERIPHERAL_BASE_VIRT) + MAPIO(nslu2_map_io) + INITIRQ(ixp4xx_init_irq) //FIXME: all irq are off here + INITTIME(ixp4xx_init_time) //this was missing in 2.6.7 code ...soft reboot needed? + BOOT_PARAMS(0x0100) + INIT_MACHINE(nslu2_init) +MACHINE_END diff --git a/linux/openslug-kernel-2.6.9/nslu2.h b/linux/openslug-kernel-2.6.9/nslu2.h index e69de29bb2..bb79aaa007 100644 --- a/linux/openslug-kernel-2.6.9/nslu2.h +++ b/linux/openslug-kernel-2.6.9/nslu2.h @@ -0,0 +1,43 @@ +/* + * include/asm-arm/arch-ixp4xx/nslu2.h + * + * NSLU2 platform specific definitions + * + * Author: Mark Rakes <mrakes AT mac.com> + * Maintainers: http://www.nslu2-linux.org + * + * based on ixdp425.h: + * Copyright 2004 (c) MontaVista, Software, Inc. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +// GPIO 8 is used as the power input so is not free for use as a PCI IRQ +// kas11 11-2-04 + +#ifndef __ASM_ARCH_HARDWARE_H__ +#error "Do not include this directly, instead #include <asm/hardware.h>" +#endif + +#define NSLU2_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS +#define NSLU2_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE + +#define NSLU2_SDA_PIN 7 +#define NSLU2_SCL_PIN 6 + +/* + * NSLU2 PCI IRQs + */ +#define NSLU2_PCI_MAX_DEV 3 +#define NSLU2_PCI_IRQ_LINES 3 + + +/* PCI controller GPIO to IRQ pin mappings */ +#define NSLU2_PCI_INTA_PIN 11 +#define NSLU2_PCI_INTB_PIN 10 +#define NSLU2_PCI_INTC_PIN 9 +//#define NSLU2_PCI_INTD_PIN 8 + + diff --git a/linux/openslug-kernel-2.6.9/x1205-rtc.c b/linux/openslug-kernel-2.6.9/x1205-rtc.c index e69de29bb2..c194608ad6 100644 --- a/linux/openslug-kernel-2.6.9/x1205-rtc.c +++ b/linux/openslug-kernel-2.6.9/x1205-rtc.c @@ -0,0 +1,548 @@ +/* + x1205 - an 12c driver for the Xicor X1205 RTC + Copyright 2004 Karen Spearel + + please send all reports to: + kas11 at tampabay dot rr dot com + + based on linux/drivers/acron/char/pcf8583.h + Copyright (C) 2000 Russell King + + 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. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ +/* + + * i2c_adapter is the structure used to identify a physical i2c bus along + * with the access algorithms necessary to access it. + +struct i2c_adapter { + struct module *owner; + unsigned int id; == is algo->id | hwdep.struct->id, for registered values see below + unsigned int class; + struct i2c_algorithm *algo; the algorithm to access the bus + void *algo_data; + + --- administration stuff. + int (*client_register)(struct i2c_client *); + int (*client_unregister)(struct i2c_client *); + + data fields that are valid for all devices + struct semaphore bus_lock; + struct semaphore clist_lock; + + int timeout; + int retries; + struct device dev; the adapter device + struct class_device class_dev; the class device + +#ifdef CONFIG_PROC_FS + No need to set this when you initialize the adapter + int inode; +#endif def CONFIG_PROC_FS + + int nr; + struct list_head clients; + struct list_head list; + char name[I2C_NAME_SIZE]; + struct completion dev_released; + struct completion class_dev_released; +}; +*/ + + +/*========== Driver for the X1205 on the Linksys NSLU2 ==================*/ + +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/bcd.h> +#include <linux/rtc.h> +#include <linux/fs.h> +#include <linux/proc_fs.h> +#include <linux/miscdevice.h> +#include <linux/device.h> +#include <asm/uaccess.h> +#include <asm/system.h> +#include <linux/moduleparam.h> + +#define RTC_GETDATETIME 0 +#define RTC_SETTIME 1 +#define RTC_SETDATETIME 2 + +#define I2C_M_WR 0 // just for consistancy + +// offsets into read buf - add 2 for write buf +#define CCR_SEC 0 +#define CCR_MIN 1 +#define CCR_HOUR 2 +#define CCR_MDAY 3 +#define CCR_MONTH 4 +#define CCR_YEAR 5 +#define CCR_WDAY 6 +#define CCR_Y2K 7 + +#define X1205_I2C_BUS_ADDR 0x6f // hardwired into x1205 +#define X1205_ALM0_BASE 0x00 // Base address of the ALM0 +#define X1205_CCR_BASE 0x30 // Base address of the CCR +#define X1205_SR_ADDR 0x3f // Status Register +#define X1205_SR_WEL 0x02 // Write Enable Latch bit +#define X1205_SR_RWEL 0x04 // Register Write Enable Bit +#define X1205_MILBIT 0x80 // this bit set in ccr.hour for 24 hr mode +#define NOERR 0 +#define RTC_NODATE 0 +#define RTC_DATETOO 1 + +// comment out next line is your x1205 can't do page writes +//#define X1205PAGEWRITE 1 +#ifdef X1205PAGEWRITE +#define DRIVERNAME "Xicor x1205 RTC Driver v0.9.3.3" +#else +#define DRIVERNAME "Xicor x1205 RTC Dvr v0.9.3.3NPW" +#endif + +#define DEBUG KERN_DEBUG + + +static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm, u8 reg_base); +static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm, int datetoo, u8 reg_base); +static int x1205_attach(struct i2c_adapter *adapter); +static int x1205_detach(struct i2c_client *client); +static int x1205_validate_tm(struct rtc_time *tm); +static int x1205_command(struct i2c_client *client, unsigned int cmd, void *arg); +static int x1205_sync_rtc(void); +static int x1205_read(struct file *file, char *buf, size_t count, loff_t *ptr); +static int x1205_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg); +static int x1205_read_proc(char *buf, char **start, off_t off, int len, int *eof, void *data); + +static struct i2c_driver x1205_driver = { + .owner = THIS_MODULE, + .name = DRIVERNAME, + .id = I2C_DRIVERID_X1205, + .flags = I2C_DF_NOTIFY, + .attach_adapter = &x1205_attach, //we don't need to probe...x1205 is hardwired @ 0x6f + .detach_client = &x1205_detach, + .command = &x1205_command, //this prolly never gets called...used internally tho +}; + +static struct i2c_client x1205_i2c_client = { + .id = I2C_DRIVERID_X1205, + .flags = 0, + .addr = X1205_I2C_BUS_ADDR, // chip address - NOTE: 7bit + .adapter = NULL, // the adapter we sit on assigned in attach + .driver = &x1205_driver, // and our access routines + .usage_count = 0, // How many accesses currently to this client + .dev = {}, // the device structure + .list = {}, + .name = DRIVERNAME, + .released = {}, +}; + +static struct file_operations rtc_fops = { + owner: THIS_MODULE, + ioctl: x1205_ioctl, + read: x1205_read, +}; + +static struct miscdevice x1205_miscdev = { + .minor = RTC_MINOR, + .name = "rtc", + .fops = &rtc_fops, +}; +extern int (*set_rtc)(void); +static unsigned epoch = 1900; //coresponds to year 0 +static unsigned rtc_epoch = 2000; +static const unsigned char days_in_mo[] = +{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; + +//===================================CODE====================================== +// in the routines that deal directly with the x1205 hardware, we use +// rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch +// Epoch is inited as 2000. Time is set to UT +//============================================================================= +static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm, u8 reg_base) +{ + static unsigned char addr[2] = { 0,} ; + unsigned char buf[8]; + struct i2c_msg msgs[2] = { + { client->addr, I2C_M_WR, 2, addr }, //msg 1 = send base address + { client->addr, I2C_M_RD, 8, buf }, //msg 2 = read sequential data + }; + addr[1] = reg_base; + if ((i2c_transfer(client->adapter, msgs, 2)) == 2) { //did we read 2 messages? + printk(KERN_DEBUG "raw x1205 read data - sec-%02x min-%02x hr-%02x mday-%02x mon-%02x year-%02x wday-%02x y2k-%02x\n", + buf[0],buf[1],buf[2],buf[3],buf[4],buf[5],buf[6], buf[7]); + tm->tm_sec = BCD2BIN(buf[CCR_SEC]); + tm->tm_min = BCD2BIN(buf[CCR_MIN]); + buf[CCR_HOUR] &= ~X1205_MILBIT; + tm->tm_hour = BCD2BIN(buf[CCR_HOUR]); //hr is 0-23 + tm->tm_mday = BCD2BIN(buf[CCR_MDAY]); + tm->tm_mon = BCD2BIN(buf[CCR_MONTH]); + rtc_epoch = BCD2BIN(buf[CCR_Y2K]) * 100; + tm->tm_year = BCD2BIN(buf[CCR_YEAR]) + rtc_epoch - epoch; + tm->tm_wday = buf[CCR_WDAY]; + printk(KERN_DEBUG "rtc_time output data - sec-%02d min-%02d hr-%02d mday-%02d mon-%02d year-%02d wday-%02d epoch-%d rtc_epoch-%d\n", + tm->tm_sec,tm->tm_min,tm->tm_hour,tm->tm_mday,tm->tm_mon,tm->tm_year,tm->tm_wday,epoch, rtc_epoch); + } else { + printk(KERN_DEBUG "i2c_transfer Read Error\n"); + return -EIO; + } + + return NOERR; +} +// x1205pagewrite allows writing a block of registers in msg3 even though the x1205 says +// nothing about this in its spec. +// it needs more testing as it is possible some x1205s are actually not-completely- +// functional x1226s and there is a reason for the multiple write to not be in the spec. +// anyhow, it is enabled for the time being...and we even push out luck by sending 10 bytes + +static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm, int datetoo, u8 reg_base) +{ + static unsigned char wel[3] = { 0, X1205_SR_ADDR, X1205_SR_WEL }; + static unsigned char rwel[3] = { 0, X1205_SR_ADDR, X1205_SR_WEL | X1205_SR_RWEL }; + static unsigned char diswe[3] = { 0, X1205_SR_ADDR, 0 }; + +#ifdef X1205PAGEWRITE + + static unsigned char buf[10] = { 0, X1205_CCR_BASE, }; + struct i2c_msg msgs[4] = { + { client->addr, I2C_M_WR, 3, wel }, //msg 1 = write WEL to to ccr sr + { client->addr, I2C_M_WR, 3, rwel }, //msg 2 = write RWEL to ccr sr + { client->addr, I2C_M_WR, 10, buf }, //msg 3 = write ccr base addr +seq data + { client->addr, I2C_M_WR, 3, diswe }, //msg 4 = 0 to ccr sr to disable writes + }; + + msgs[2].len = 5; // 5 bytes + addr to set time only + buf [1] = reg_base; + buf[CCR_SEC+2] = BIN2BCD(tm->tm_sec); + buf[CCR_MIN+2] = BIN2BCD(tm->tm_min); + buf[CCR_HOUR+2] = BIN2BCD(tm->tm_hour) | X1205_MILBIT; // set 24 hour format + if (datetoo == 1) { + buf[CCR_MDAY+2] = BIN2BCD(tm->tm_mday); + buf[CCR_MONTH+2] = BIN2BCD(tm->tm_mon); // input is 0-11 + buf[CCR_YEAR+2] = BIN2BCD((tm->tm_year + epoch - rtc_epoch)); // input is yrs since 1900 + buf[CCR_WDAY+2] = tm->tm_wday & 7; + buf[CCR_Y2K+2] = BIN2BCD((rtc_epoch/100)); + msgs[2].len += 5; //5 more bytes to set date + } + printk(KERN_DEBUG "rtc_time input - sec-%02d min-%02d hour-%02d mday-%02d mon-%02d year-%02d wday-%02d epoch-%d rtc_epoch-%d\n", + tm->tm_sec,tm->tm_min,tm->tm_hour,tm->tm_mday,tm->tm_mon,tm->tm_year,tm->tm_wday, epoch, rtc_epoch); + printk(KERN_DEBUG "BCD write data - sec-%02x min-%02x hour-%02x mday-%02x mon-%02x year-%02x wday-%02x y2k-%02x\n", + buf[2],buf[3],buf[4],buf[5],buf[6], buf[7], buf[8], buf[9]); + + if ((i2c_transfer(client->adapter, msgs, 4)) != 4) + return -EIO; + return NOERR; + +#else //do this if page writes aren't working + + int i,xfer; + static unsigned char data[3] = { 0,}; + static unsigned char buf[8]; + + buf[CCR_SEC] = BIN2BCD(tm->tm_sec); + buf[CCR_MIN] = BIN2BCD(tm->tm_min); + buf[CCR_HOUR] = BIN2BCD(tm->tm_hour) | X1205_MILBIT; // set 24 hour format + if (datetoo == 1) { + buf[CCR_MDAY] = BIN2BCD(tm->tm_mday); + buf[CCR_MONTH] = BIN2BCD(tm->tm_mon); // input is 0-11 + buf[CCR_YEAR] = BIN2BCD((tm->tm_year + epoch - rtc_epoch)); // input is yrs since 1900 + buf[CCR_WDAY] = tm->tm_wday & 7; + buf[CCR_Y2K] = BIN2BCD((rtc_epoch/100)); + } + printk(KERN_DEBUG "rtc_time input - sec-%02d min-%02d hour-%02d mday-%02d mon-%02d year-%02d wday-%02d epoch-%d rtc_epoch-%d\n", + tm->tm_sec,tm->tm_min,tm->tm_hour,tm->tm_mday,tm->tm_mon,tm->tm_year,tm->tm_wday, epoch, rtc_epoch); + + xfer = i2c_master_send(client, wel, 3); + printk(KERN_DEBUG "wen - %x\n", xfer); + if (xfer != 3) + return -EIO; + + xfer = i2c_master_send(client, rwel, 3); + printk(KERN_DEBUG "wenb - %x\n", xfer); + if (xfer != 3) + return -EIO; + + for (i = 0; i < 8; i++) { + data[1] = i + reg_base; + data[2] = buf[i]; + xfer = i2c_master_send(client, data, 3); + printk(KERN_DEBUG "xfer - %d addr - %02x data - %02x\n", xfer, data[1], data[2]); + if (xfer != 3) + return -EIO; + }; + + xfer = i2c_master_send(client, diswe, 3); + printk(KERN_DEBUG "wdis - %x\n", xfer); + if (xfer != 3) + return -EIO; + return NOERR; +#endif +} +//============================================================================= + +static int x1205_attach(struct i2c_adapter *adapter) +{ + struct rtc_time tm; + struct timespec tv; + int errno; + + x1205_i2c_client.adapter = adapter; + x1205_i2c_client.id++; + + if ((x1205_get_datetime(&x1205_i2c_client, &tm, X1205_CCR_BASE)) != NOERR) //test for functional driver + return -EIO; + + if ((errno = i2c_attach_client(&x1205_i2c_client)) != NOERR) + return errno; + + tv.tv_nsec = tm.tm_sec * 10000000; + tv.tv_sec = mktime(tm.tm_year+epoch, tm.tm_mon+1, tm.tm_mday, tm.tm_hour, + tm.tm_min, tm.tm_sec); + do_settimeofday(&tv); + set_rtc = x1205_sync_rtc; + + printk(KERN_DEBUG "%s attached on adapter %s\n",x1205_i2c_client.name, + x1205_i2c_client.adapter->name); //why is this name a null string? + + return NOERR; +} + +static int x1205_detach(struct i2c_client *client) +{ + int errno; + + if ((errno = i2c_detach_client(client)) != 0) { + printk(KERN_DEBUG "i2c_detach failed - errno = %d\n", errno); + return errno; + } + + return NOERR; +} + +// make sure the rtc_time values are in bounds +static int x1205_validate_tm(struct rtc_time *tm) +{ + tm->tm_year += 1900; + + if (tm->tm_year < 1970) + return -EINVAL; + + if ((tm->tm_mon > 11) || (tm->tm_mday == 0)) + return -EINVAL; + + if (tm->tm_mday > (days_in_mo[tm->tm_mon] + ( (tm->tm_mon == 1) && + ((!(tm->tm_year % 4) && (tm->tm_year % 100) ) || !(tm->tm_year % 400))))) + return -EINVAL; + + if ((tm->tm_year -= epoch) > 255) + return -EINVAL; + + if ((tm->tm_hour >= 24) || (tm->tm_min >= 60) || (tm->tm_sec >= 60)) + return -EINVAL; + return NOERR; +} + +static int x1205_command(struct i2c_client *client, unsigned int cmd, void *tm) +{ + int errno, dodate = RTC_DATETOO; + + if (client == NULL || tm == NULL) + return -EINVAL; + if (!capable(CAP_SYS_TIME)) + return -EACCES; + + printk(KERN_DEBUG "x1205_command %d\n", cmd); + + switch (cmd) { + case RTC_GETDATETIME: + return x1205_get_datetime(client, tm, X1205_CCR_BASE); + + case RTC_SETTIME: // note fall thru + dodate = RTC_NODATE; + case RTC_SETDATETIME: + if ((errno = x1205_validate_tm(tm)) < NOERR) + return errno; + return x1205_set_datetime(client, tm, dodate, X1205_CCR_BASE); + + default: + return -EINVAL; + } +} + +static int x1205_sync_rtc(void) +{ + struct rtc_time new_tm, old_tm; + unsigned long cur_secs = xtime.tv_sec; + + printk(KERN_DEBUG "x1205_sync_rtc entry\n"); + + if (x1205_command(&x1205_i2c_client, RTC_GETDATETIME, &old_tm)) + return 0; + +// xtime.tv_nsec = old_tm.tm_sec * 10000000; //FIXME: + new_tm.tm_sec = cur_secs % 60; + cur_secs /= 60; + new_tm.tm_min = cur_secs % 60; + cur_secs /= 60; + new_tm.tm_hour = cur_secs % 24; + + /* + * avoid writing when we're going to change the day + * of the month. We will retry in the next minute. + * This basically means that if the RTC must not drift + * by more than 1 minute in 11 minutes. + */ + if ((old_tm.tm_hour == 23 && old_tm.tm_min == 59) || + (new_tm.tm_hour == 23 && new_tm.tm_min == 59)) + return 1; + printk(KERN_DEBUG "x1205_sync_rtc exit\n"); + + return x1205_command(&x1205_i2c_client, RTC_SETTIME, &new_tm); +} + +static int x1205_read(struct file *file, char *buf, size_t count, loff_t *ptr) +{ + struct rtc_time tm; + + if ((x1205_get_datetime(&x1205_i2c_client, &tm, X1205_CCR_BASE)) < NOERR) + return -EIO; + return copy_to_user(buf, &tm, sizeof(tm)) ? -EFAULT : NOERR; +} + +//============================================================================== + +static int x1205_ioctl(struct inode *inode, struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct rtc_time tm; + int errno; + + printk(KERN_DEBUG "ioctl = %x\n", cmd); + + switch (cmd) { + case RTC_RD_TIME: + if ((x1205_get_datetime(&x1205_i2c_client, &tm, X1205_CCR_BASE)) < NOERR) + return -EIO; + break; + + case RTC_SET_TIME: + if (!capable(CAP_SYS_TIME)) + return -EACCES; + + if (copy_from_user(&tm, (struct rtc_time *) arg, sizeof(struct rtc_time))) + return -EFAULT; + if ((errno = x1205_validate_tm(&tm)) < NOERR) + return errno; + return x1205_set_datetime(&x1205_i2c_client, &tm, RTC_DATETOO, X1205_CCR_BASE); + + case RTC_ALM_SET: //FIXME: set Control Regs + if (copy_from_user(&tm, (struct rtc_time *) arg, sizeof(struct rtc_time))) + return -EFAULT; + return x1205_set_datetime(&x1205_i2c_client, &tm, RTC_DATETOO, X1205_ALM0_BASE); + + case RTC_ALM_READ: + if ((x1205_get_datetime(&x1205_i2c_client, &tm, X1205_ALM0_BASE)) < NOERR) + return -EIO; + break; + + case RTC_EPOCH_READ: + + return put_user (epoch, (unsigned long __user *)arg); + + case RTC_EPOCH_SET: + if (arg < 1900) + return -EINVAL; + + if (!capable(CAP_SYS_TIME)) + return -EACCES; + + epoch = arg; + return 0; + + default: + return -ENOTTY; + } + return copy_to_user((void __user *)arg, &tm, sizeof tm) ? -EFAULT : 0; + +} + +static int x1205_read_proc(char *buf, char **start, off_t off, int len, int *eof, void *data) +{ + struct rtc_time tm; + int slen, errno; + + if ((errno = x1205_get_datetime(&x1205_i2c_client, &tm, X1205_CCR_BASE)) < NOERR) + return errno; + +// here we return the real year and the month as 1-12 since it is human-readable + slen = sprintf(buf, "rtc_time\t: %02d:%02d:%02d\nrtc_date\t: %04d-%02d-%02d\n", + tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_year + 1900, tm.tm_mon+1, tm.tm_mday); + printk(KERN_DEBUG "raw rtc_time\t: %02d:%02d:%02d\nraw rtc_date\t: %04d-%02d-%02d\n", + tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_year, tm.tm_mon, tm.tm_mday); + + if (slen <= off + len) + *eof = 1; + *start = buf + off; + slen -= off; + if (slen > len) + slen = len; + if ( slen < 0 ) + slen = 0; + + return slen; +} + +static int __init x1205_init(void) +{ + struct rtc_time tm; + int errno; + printk(KERN_INFO "LOADED %s\n", DRIVERNAME); + + if ((errno = i2c_add_driver(&x1205_driver)) != NOERR) { + dev_dbg(x1205_i2c_client.dev, "x1205_init failed - errno = %d\n", errno); + return (errno); + } + if ((errno = misc_register(&x1205_miscdev)) != NOERR) { + dev_dbg(x1205_i2c_client.dev, "Register Misc Driver failed - errno = %d\n", errno); + i2c_del_driver(&x1205_driver); + return errno; + } + if (create_proc_read_entry("driver/rtc", 0, NULL, x1205_read_proc, NULL) < NOERR) + return -ENOMEM; + if ((x1205_get_datetime(&x1205_i2c_client, &tm, X1205_CCR_BASE)) != NOERR) //test for functionality + return -EIO; + + return NOERR; +} + +static void __exit x1205_exit(void) +{ + remove_proc_entry("driver/rtc", NULL); + misc_deregister(&x1205_miscdev); + i2c_del_driver(&x1205_driver); + set_rtc = NULL; +} + +MODULE_AUTHOR("Karen Spearel <kas11@tampabay.rr.com>"); +MODULE_DESCRIPTION("Xicor X1205-RTC Driver"); +MODULE_LICENSE("GPL"); +static int debug = 7; +module_param(debug, bool, 0644); +MODULE_PARM_DESC(debug, "Debugging enabled = 1"); + +module_init(x1205_init); +module_exit(x1205_exit); |