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Diffstat (limited to 'linux/openslug-kernel-2.6.9/nslu2-io.c')
-rw-r--r--linux/openslug-kernel-2.6.9/nslu2-io.c263
1 files changed, 180 insertions, 83 deletions
diff --git a/linux/openslug-kernel-2.6.9/nslu2-io.c b/linux/openslug-kernel-2.6.9/nslu2-io.c
index ad5bdc221d..53a3df7638 100644
--- a/linux/openslug-kernel-2.6.9/nslu2-io.c
+++ b/linux/openslug-kernel-2.6.9/nslu2-io.c
@@ -1,13 +1,16 @@
//=============================================================================
//
-// nslu2-io.c version 0.1.0
+// 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_pbuttond DAEMON. EVENTUALLY THE LED DRIVER
-// WILL TALK TO SOME USERLAND APP BUT ***NOT*** THE NASTY SETLEDS.
+// WILL TALK TO THE n2_pbd DAEMON. EVENTUALLY THE LED DRIVER
+// WILL TALK TO SOME USERLAND APP BUT ***NOT*** SET_LEDS.
//
//=============================================================================
// GPIO Function State
@@ -22,12 +25,9 @@
//=============================================================================
// 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.
+// of the N2. As OpenN2 develops, addition features will be added as
+// suggested by the community.
//
-// 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>
@@ -53,39 +53,10 @@
#include <asm/hardware.h>
#include <asm-arm/irq.h>
#include <asm-arm/delay.h>
+#include <asm-arm/signal.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 VERSION "0.1.7"
#define N2RB_MAJOR 60
#define N2PB_MAJOR 61
@@ -121,22 +92,27 @@
#define PWR_OFF_STR "poweroff"
-// ioctls -- THESE NEED TO BE PROPERLY DEFINED
+// ioctls -- 'M" is used for sound cards...we don't got one so it seems safe
-#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 N2BZ_BEEP_STOP _IO('M',0) //stop multi-beep at end of audible
+#define N2BZ_BEEP _IO('M',1) //one beep at current defaults
+#define N2BZ_BEEPS _IOW('M',3,long) //param beeps at current defaults
+#define N2BZ_TONESET _IOW('M',4,long) //set tone: range is high=250 to low=2000
+#define N2BZ_ONTIME _IOW('M',5,long) //ontime for multi-beeps in jiffies
+#define N2BZ_SILENTTIME _IOW('M',6,long) //offtime for multi-beeps in jiffies
+#define N2BZ_REPEATCNT _IOW('M',7,long) //number of repeats for multi-beeps 0 = forever
+#define N2BZ_COMBINED _IOW('M',8,long) //combine all params in a long
+
+#define N2LM_OFF _IOW('M',32,long)
+#define N2LM_ON _IOW('M',33,long)
+#define N2LM_BLINK _IOW('M',34,long)
+#define N2LM_ALT _IOW('M',35,long)
+#define N2LM_ALL_ON _IO('M',36)
+#define N2LM_ALL_OFF _IO('M',37)
#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
@@ -175,8 +151,12 @@ static int n2lm_ioctl(struct inode * inode, struct file * file, unsigned int cm
#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
+static unsigned long init_jiffy = 0; //jiffies at init time
+static unsigned long rb_presses = 0; //number of reset button presses
+static unsigned long ontime = 50;
+static unsigned long offtime = 450;
+static unsigned long bz_repeatcnt = 10;
+static unsigned long tone = 1000;
DECLARE_WAIT_QUEUE_HEAD(n2rb_waitq);
DECLARE_WAIT_QUEUE_HEAD(n2pb_waitq);
@@ -187,7 +167,7 @@ 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;
-
+static struct timer_list n2bz_timer; //beeper
//==================================================================================================
//
@@ -240,25 +220,21 @@ static void n2lm_timer_start(unsigned long 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;
+ n2lm_d2_timer.expires = jiffies + BLINK_DELAY;
add_timer(&n2lm_d2_timer);
break;
@@ -306,7 +282,7 @@ static void n2lm_timer_stop_all(void)
static void n2lm_ledon(unsigned long led)
{
- printk("ledon: %ld\n", led);
+ printk(KERN_DEBUG "ledon: %ld\n", led);
switch (led) {
case LED_RS_RED:
@@ -421,7 +397,7 @@ static struct file_operations n2lm_fops = {
// important should be haprepening.
//==================================================================================================
-static void n2_beep(int tone_delay, int duration)
+static void n2_buzz(int tone_delay, int duration)
{
int i;
@@ -437,6 +413,82 @@ static void n2_beep(int tone_delay, int duration)
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);
+ printk(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 N2BZ_BEEP:
+ n2_buzz(tone/2, ontime);
+ break;
+
+ case N2BZ_BEEP_STOP:
+ del_timer(&n2bz_timer);
+ break;
+
+ case N2BZ_BEEPS:
+ if (param == 0)
+ bz_repeatcnt = 0xffffffff;
+ else
+ bz_repeatcnt = param;
+ n2bz_handler(0);
+ break;
+
+ case N2BZ_TONESET:
+ if (param >= 250 && param <= 2000)
+ tone = param;
+ break;
+
+ case N2BZ_ONTIME:
+ if (param > 4 && param < 201)
+ ontime = param;
+ break;
+
+ case N2BZ_SILENTTIME:
+ if (param > ontime) //enforce a reasonable duty cycle
+ offtime = param;
+ else
+ offtime = ontime;
+ break;
+
+ case N2BZ_REPEATCNT:
+ if (param == 0)
+ bz_repeatcnt = 0xffffffff;
+ else
+ bz_repeatcnt = param;
+ break;
+
+ case N2BZ_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 NOERR;
+}
+
+static struct file_operations n2bz_fops = {
+ .owner = THIS_MODULE,
+ .ioctl = n2bz_ioctl,
+};
//==================================================================================================
@@ -446,11 +498,12 @@ static irqreturn_t n2pb_handler (int irq, void *dev_id, struct pt_regs *regs)
wake_up(&n2pb_waitq);
remove_proc_entry(PWR_OFF_STR, NULL); //no parent
- n2_beep(N2_BEEP_PITCH_MED, N2_BEEP_DUR_MED);
+ n2_buzz(N2_BEEP_PITCH_MED, N2_BEEP_DUR_MED);
ret = create_proc_entry(PWR_OFF_STR, 0, NULL);
+ printk(KERN_DEBUG "cpe ret = %p\n", ret);
-// WARNING: This is RUDE...it unconditionally pulls the power plug
-// your data will be at risk...since this is just a test system
+// 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.
@@ -458,7 +511,6 @@ static irqreturn_t n2pb_handler (int irq, void *dev_id, struct pt_regs *regs)
*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;
}
@@ -469,7 +521,7 @@ static irqreturn_t n2pb_handler (int irq, void *dev_id, struct pt_regs *regs)
// int i;
//
// for (i = 0; i < rb_presses; i++)
-// n2_beep(N2_BEEP_PITCH_MED,N2_BEEP_DUR_SHORT);
+// n2_buzz(N2_BEEP_PITCH_MED,N2_BEEP_DUR_SHORT);
// return;
//}
//
@@ -477,23 +529,55 @@ static irqreturn_t n2pb_handler (int irq, void *dev_id, struct pt_regs *regs)
// 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
+
+struct testr {
+ int ctl;
+ long param;
+};
+
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);
+ static struct testr test[] = {
+ N2LM_ALL_OFF,0,
+ N2LM_ON,0,
+ N2LM_OFF,0,
+ N2LM_ON,1,
+ N2LM_ALL_OFF,1,
+ N2LM_ON,2,
+ N2LM_OFF,2,
+ N2LM_ON,3,
+ N2LM_OFF,3,
+ N2LM_BLINK,0,
+ N2LM_OFF,0,
+ N2LM_BLINK,1,
+ N2LM_OFF,1,
+ N2LM_BLINK,2,
+ N2LM_OFF,2,
+ N2LM_BLINK,3,
+ N2LM_OFF,3,
+ N2LM_ALL_OFF,0,
+ N2LM_ALT,1,
+ N2LM_OFF,1,
+ N2LM_ALL_ON,0
+ };
+
+ printk("Reset Entry IRQ =%d Presses = %d Jiffies = %08lx\tIO = %x\tIOW = %x\n", irq, rb_presses, jiffies, (int)_IO('M',rb_presses), (int)_IOW('M',rb_presses,long));
wake_up(&n2rb_waitq);
while ((*IXP4XX_GPIO_GPINR & GPIO_RB_BM) == 0)
; //wait for button release
- if (rb_presses == 21) {
+ if (rb_presses > 20)
rb_presses = 0;
- }
- n2lm_ioctl(NULL,NULL,test[rb_presses*2], test[rb_presses*2+1]);
- rb_presses++;
-
+ tone = (rb_presses * 50) + 200;
+ ontime = (rb_presses*10) + 100;
+ offtime = 500 - (rb_presses*20);
+ printk("Ontime = %d\tOfftime = %d\tTone = %d\n",ontime,offtime,tone);
+ rb_presses++;
+
+ n2bz_ioctl(NULL,NULL, N2BZ_BEEPS, rb_presses);
+ n2lm_ioctl(NULL,NULL, test[rb_presses].ctl, test[rb_presses].param);
// if (rb_presses == 0) {
// init_jiffy = jiffies;
// init_timer (&n2rb_timer);
@@ -518,6 +602,7 @@ static irqreturn_t n2rb_handler (int irq, void *dev_id, struct pt_regs *regs)
printk(KERN_DEBUG "Reset Exit IRQ=%d Presses= %d Jiffies= %08lx\n", irq, rb_presses, jiffies);
return IRQ_HANDLED;
+
}
//==================================================================================================
@@ -572,14 +657,21 @@ static void n2iom_initarch(void)
init_timer(&n2lm_rsr_timer);
init_timer(&n2lm_d1_timer);
init_timer(&n2lm_d2_timer);
- init_timer(&n2rb_timer);
- init_timer(&n2pb_timer);
+// init_timer(&n2rb_timer);
+// init_timer(&n2pb_timer);
+ init_timer(&n2bz_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;
+ 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;
*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);
+ n2_buzz(N2_BEEP_PITCH_MED, N2_BEEP_DUR_SHORT);
n2lm_ledoff(LED_ALL);
return;
@@ -589,24 +681,29 @@ static void n2iom_initarch(void)
static int __init n2iom_init(void)
{
- printk(KERN_INFO "NSLU2 Misc I/O Driver Version %s (C) Karen Spearel\n", VERSION);
+ printk(KERN_INFO "OpenN2 Misc I/O Driver Version %s\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) {
+ if (register_chrdev(N2RB_MAJOR, "n2_rbm", &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) {
+ if (register_chrdev(N2PB_MAJOR, "n2_pbm", &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) {
+ if (register_chrdev(N2LM_MAJOR, "n2_ledm", &n2lm_fops) < NOERR) {
printk(KERN_DEBUG "Led Manager Major %d not available\n", N2LM_MAJOR);
return -EBUSY;
}
+ if (register_chrdev(N2BZ_MAJOR, "n2_bzm", &n2bz_fops) < NOERR) {
+ printk(KERN_DEBUG "Buzzer Major %d not available\n", N2BZ_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;
@@ -643,9 +740,9 @@ module_init (n2iom_init);
module_exit (n2iom_exit);
MODULE_AUTHOR("Karen Spearel <kas11@tampabay.rr.com>");
-MODULE_DESCRIPTION("NSLU2 Buttons/LEDs IO Driver");
+MODULE_DESCRIPTION("OpenN2 Buttons/LEDs IO Driver");
MODULE_LICENSE("GPL");
static int debug = 7;
module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Debugging enabled = 1");
+MODULE_PARM_DESC(debug, "Debugging enabled = 8");
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 03:12:12 +0000