diff options
Diffstat (limited to 'packages/linux/ixp4xx-kernel/2.6.15/80-nslu2-io.patch')
| -rw-r--r-- | packages/linux/ixp4xx-kernel/2.6.15/80-nslu2-io.patch | 560 |
1 files changed, 560 insertions, 0 deletions
diff --git a/packages/linux/ixp4xx-kernel/2.6.15/80-nslu2-io.patch b/packages/linux/ixp4xx-kernel/2.6.15/80-nslu2-io.patch new file mode 100644 index 0000000000..26031f6f00 --- /dev/null +++ b/packages/linux/ixp4xx-kernel/2.6.15/80-nslu2-io.patch @@ -0,0 +1,560 @@ +--- linux-2.6.15/arch/arm/mach-ixp4xx/Makefile 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.15/arch/arm/mach-ixp4xx/Makefile 1970-01-01 00:00:00.000000000 +0000 +@@ -8,5 +8,5 @@ obj-$(CONFIG_ARCH_IXDP4XX) += ixdp425-pc + obj-$(CONFIG_MACH_IXDPG425) += ixdpg425-pci.o coyote-setup.o + obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-pci.o coyote-setup.o + obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o gtwx5715-setup.o +-obj-$(CONFIG_MACH_NSLU2) += nslu2-pci.o nslu2-setup.o nslu2-power.o ++obj-$(CONFIG_MACH_NSLU2) += nslu2-pci.o nslu2-setup.o nslu2-power.o nslu2-io.o + +--- linux-2.6.15/arch/arm/mach-ixp4xx/nslu2-io.c 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.15/arch/arm/mach-ixp4xx/nslu2-io.c 1970-01-01 00:00:00.000000000 +0000 +@@ -0,0 +1,548 @@ ++//============================================================================= ++// ++// n2-io.c version 0.1.7 ++// Author: Karen Spearel <kas11 at tampabay.rr.com> ++// please report problems/bugs directly to the address above ++// ++// Boilerplate to be added "real soon now"...it is and has always been GPL'ed per ++// MODULE_LICENSE but is offered without warrantee of any sort..use at your own risk ++// ++// 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_pbd DAEMON. EVENTUALLY THE LED DRIVER ++// WILL TALK TO SOME USERLAND APP BUT ***NOT*** SET_LEDS. ++// ++//============================================================================= ++// 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 NSLU2 ++// 12 Reset Pressed = 0 ++ ++#include <linux/config.h> ++#include <linux/version.h> ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/proc_fs.h> ++#include <linux/device.h> ++#include <linux/reboot.h> ++ ++#include <asm/uaccess.h> ++#include <asm-arm/irq.h> ++#include <asm-arm/delay.h> ++ ++/* Set this to 1 to output lots of debug messages. */ ++#define NSLU2_IO_DEBUG 0 ++ ++#if NSLU2_IO_DEBUG ++#define nslu2_io_debug(args) printk args ++#else ++#define nslu2_io_debug(args) ((void)0) ++#endif ++ ++#define VERSION "0.1.7" ++ ++#define NSLU2BZ_MAJOR 62 //buzzer ++#define NSLU2LM_MAJOR 126 ++ ++ ++#define NSLU2_BEEP_DUR_LONG 2000 ++#define NSLU2_BEEP_DUR_MED 400 ++#define NSLU2_BEEP_DUR_SHORT 100 ++#define NSLU2_BEEP_PITCH_HIGH 250 ++#define NSLU2_BEEP_PITCH_MED 500 ++#define NSLU2_BEEP_PITCH_LOW 1000 ++#define NSLU2_LONG_DELAY 30000 ++ ++#define NSLU2_BZ_BM (1L << NSLU2_GPIO_BUZZ) ++ ++// ioctls -- 'M" is used for sound cards...we don't got one so it seems safe ++ ++#define NSLU2BZ_BEEP_STOP _IO('M',0) //stop multi-beep at end of audible ++#define NSLU2BZ_BEEP _IO('M',1) //one beep at current defaults ++#define NSLU2BZ_BEEPS _IOW('M',3,long) //param beeps at current defaults ++#define NSLU2BZ_TONESET _IOW('M',4,long) //set tone: range is high=250 to low=2000 ++#define NSLU2BZ_ONTIME _IOW('M',5,long) //ontime for multi-beeps in jiffies ++#define NSLU2BZ_SILENTTIME _IOW('M',6,long) //offtime for multi-beeps in jiffies ++#define NSLU2BZ_REPEATCNT _IOW('M',7,long) //number of repeats for multi-beeps 0 = forever ++#define NSLU2BZ_COMBINED _IOW('M',8,long) //combine all params in a long ++ ++#define NSLU2LM_OFF _IOW('M',32,long) ++#define NSLU2LM_ON _IOW('M',33,long) ++#define NSLU2LM_BLINK _IOW('M',34,long) ++#define NSLU2LM_ALT _IOW('M',35,long) ++#define NSLU2LM_ALL_ON _IO('M',36) ++#define NSLU2LM_ALL_OFF _IO('M',37) ++ ++#define PHYS_LEDS 4 ++#define BLINK_DELAY 25 ++ ++// 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 unsigned long ontime = 50; ++static unsigned long offtime = 450; ++static unsigned long bz_repeatcnt = 10; ++static unsigned long tone = 1000; ++ ++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 n2bz_timer; //beeper ++ ++// sysfs class ++static struct class *n2lm_class; ++ ++//================================================================================================== ++// ++// 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 ++#ifndef CONFIG_LEDS ++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) ++{ ++ ++ nslu2_io_debug((KERN_DEBUG "timer: %ld\n",led)); ++ ++ switch(led) { ++ case LED_RS_RED: ++ n2lm_rsr_timer.expires = jiffies + BLINK_DELAY; ++ add_timer(&n2lm_rsr_timer); ++ break; ++ ++ case LED_RS_GRN: ++ n2lm_rsg_timer.expires = jiffies + BLINK_DELAY; ++ add_timer(&n2lm_rsg_timer); ++ break; ++ ++ case LED_DISK1: ++ n2lm_d1_timer.expires = jiffies + BLINK_DELAY; ++ add_timer(&n2lm_d1_timer); ++ break; ++ ++ case LED_DISK2: ++ n2lm_d2_timer.expires = jiffies + BLINK_DELAY; ++ 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) ++{ ++ ++ nslu2_io_debug((KERN_DEBUG "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; //0xfffffff7 ++ return; ++ case LED_DISK2: ++ *IXP4XX_GPIO_GPOUTR &= DISK2_ON; //0xfffffffb ++ 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; //0x00000008 ++ return; ++ case LED_DISK2: ++ *IXP4XX_GPIO_GPOUTR |= DISK2_OFF; //0x00000004 ++ 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) ++{ ++ ++ nslu2_io_debug((KERN_DEBUG "cmd=%d, led=%ld\n", cmd, led)); ++ ++ if (led < 0 || led >= PHYS_LEDS) ++ return -EINVAL; ++ ++ switch (cmd ) { ++ case NSLU2LM_ON: ++ n2lm_timer_stop(led); ++ n2lm_ledon(led); ++ break; ++ ++ case NSLU2LM_OFF: ++ n2lm_timer_stop(led); ++ n2lm_ledoff(led); ++ break; ++ ++ case NSLU2LM_BLINK: ++ n2lm_ledon(led); ++ if (led == LED_RS_RED) ++ n2lm_rsr_timer.data = RS_RED_TGL; ++ n2lm_timer_start(led); ++ break; ++ ++ case NSLU2LM_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 NSLU2LM_ALL_ON: ++ n2lm_timer_stop_all(); ++ n2lm_ledon(LED_ALL); ++ break; ++ ++ case NSLU2LM_ALL_OFF: ++ n2lm_timer_stop_all(); ++ n2lm_ledoff(LED_ALL); ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static struct file_operations n2lm_fops = { ++ .owner = THIS_MODULE, ++ .ioctl = n2lm_ioctl, ++}; ++#endif ++//================================================================================================== ++// 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_buzz(int tone_delay, int duration) ++{ ++ int i; ++ ++ *IXP4XX_GPIO_GPOER &= ~NSLU2_BZ_BM; ++ ++ for (i = 1; i < duration; i++) { ++ *IXP4XX_GPIO_GPOUTR &= ~NSLU2_BZ_BM; ++ udelay(tone_delay); ++ *IXP4XX_GPIO_GPOUTR |= NSLU2_BZ_BM; ++ udelay(tone_delay); ++ } ++ *IXP4XX_GPIO_GPOER |= NSLU2_BZ_BM; ++ ++ return; ++} ++//================================================================================================= ++ ++// this handles the buzzer duty cycle ++static void n2bz_handler(unsigned long data) ++{ ++ if (--bz_repeatcnt > 0) { //if just one beep left to do ++ n2bz_timer.expires = jiffies + ontime + offtime; //next timeout ++ add_timer(&n2bz_timer); //reinit timer ++ } ++ n2_buzz(tone/2, ontime); ++ nslu2_io_debug((KERN_DEBUG "Count = %d\tOntime = %d\n", bz_repeatcnt, ontime)); ++ return; ++} ++ ++//================================================================================================== ++ ++static int n2bz_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long param) ++{ ++ switch (cmd) { ++ case NSLU2BZ_BEEP: ++ n2_buzz(tone/2, ontime); ++ break; ++ ++ case NSLU2BZ_BEEP_STOP: ++ del_timer(&n2bz_timer); ++ break; ++ ++ case NSLU2BZ_BEEPS: ++ if (param == 0) ++ bz_repeatcnt = 0xffffffff; ++ else ++ bz_repeatcnt = param; ++ n2bz_handler(0); ++ break; ++ ++ case NSLU2BZ_TONESET: ++ if (param >= 250 && param <= 2000) ++ tone = param; ++ break; ++ ++ case NSLU2BZ_ONTIME: ++ if (param > 4 && param < 201) ++ ontime = param; ++ break; ++ ++ case NSLU2BZ_SILENTTIME: ++ if (param > ontime) //enforce a reasonable duty cycle ++ offtime = param; ++ else ++ offtime = ontime; ++ break; ++ ++ case NSLU2BZ_REPEATCNT: ++ if (param == 0) ++ bz_repeatcnt = 0xffffffff; ++ else ++ bz_repeatcnt = param; ++ break; ++ ++ case NSLU2BZ_COMBINED: ++ bz_repeatcnt = (param & 0xF0000000) >> 28; //repeat 1 - 16 ++ ontime = (param & 0x0FF00000) >> 20; //ontime 1 - 256 jiffies ++ offtime = (param & 0x000FFF00) >> 8; //offtime 1 - 4095 jiffies ++ tone = (param & 0x000000FF) << 4; //tone (1 - 255) * 16 ++ break; ++ ++ default: ++ break; ++ } ++ return 0; ++} ++ ++static struct file_operations n2bz_fops = { ++ .owner = THIS_MODULE, ++ .ioctl = n2bz_ioctl, ++}; ++ ++static void n2iom_initarch(void) ++{ ++#ifndef CONFIG_LEDS ++ init_timer(&n2lm_rsg_timer); ++ init_timer(&n2lm_rsr_timer); ++ init_timer(&n2lm_d1_timer); ++ init_timer(&n2lm_d2_timer); ++ ++ n2lm_rsr_timer.function = n2lm_rsr_handler; ++ n2lm_rsg_timer.function = n2lm_rsg_handler; ++ n2lm_d2_timer.function = n2lm_d2_handler; ++ n2lm_d1_timer.function = n2lm_d1_handler; ++#endif ++ ++ init_timer(&n2bz_timer); ++ n2bz_timer.function = n2bz_handler; ++ ++ n2lm_rsr_timer.data = n2lm_rsg_timer.data = n2lm_d1_timer.data = n2lm_d2_timer.data = n2bz_timer.data = 0; ++ ++#ifndef CONFIG_LEDS ++ *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_buzz(NSLU2_BEEP_PITCH_MED, NSLU2_BEEP_DUR_SHORT); ++ n2lm_ledoff(LED_ALL); ++ ++ // Default the Ready/Status to Red during kernel boot, Turn Green at the end of sysvinit ++ n2lm_ledon(LED_RS_RED); ++#endif ++ ++ return; ++} ++ ++//================================================================================================== ++ ++static int __init n2iom_init(void) ++{ ++ printk(KERN_INFO "NSLU2: i/o, %s\n", VERSION); ++ ++ n2iom_initarch(); ++ ++ n2lm_class = class_create(THIS_MODULE, "nslu2"); ++ ++#ifndef CONFIG_LEDS ++ if (register_chrdev(NSLU2LM_MAJOR, "n2_ledm", &n2lm_fops) < 0) { ++ printk(KERN_DEBUG "Led Manager Major %d not available\n", NSLU2LM_MAJOR); ++ return -EBUSY; ++ } ++ else { ++ class_device_create(n2lm_class, NULL, MKDEV(NSLU2LM_MAJOR, 0), NULL, "leds"); ++ } ++#endif ++ ++ if (register_chrdev(NSLU2BZ_MAJOR, "n2_bzm", &n2bz_fops) < 0) { ++ printk(KERN_DEBUG "Buzzer Major %d not available\n", NSLU2BZ_MAJOR); ++ return -EBUSY; ++ } ++ else { ++ class_device_create(n2lm_class, NULL, MKDEV(NSLU2BZ_MAJOR, 0), NULL, "buzzer"); ++ } ++ ++ return 0; ++} ++ ++//================================================================================================== ++ ++static void __exit n2iom_exit(void) ++{ ++ ++#ifndef CONFIG_LEDS ++ del_timer(&n2lm_rsg_timer); ++ del_timer(&n2lm_rsr_timer); ++ del_timer(&n2lm_d1_timer); ++ del_timer(&n2lm_d2_timer); ++ ++ unregister_chrdev(NSLU2LM_MAJOR, "n2lm" ); ++ class_device_destroy(n2lm_class, MKDEV(NSLU2LM_MAJOR, 0)); ++#endif ++ ++ unregister_chrdev(NSLU2BZ_MAJOR, "n2bz"); ++ class_device_destroy(n2lm_class, MKDEV(NSLU2BZ_MAJOR, 0)); ++ ++ class_destroy(n2lm_class); ++} ++ ++module_init(n2iom_init); ++module_exit(n2iom_exit); ++ ++MODULE_AUTHOR("Karen Spearel <kas11@tampabay.rr.com>"); ++MODULE_DESCRIPTION("NSLU2 I/O driver"); ++MODULE_LICENSE("GPL"); |