Commit 0efa7383 authored by Linus Torvalds's avatar Linus Torvalds

Merge bk://linux-dj.bkbits.net/watchdog

into home.transmeta.com:/home/torvalds/v2.5/linux
parents 5f49bfc9 7e0d4363
......@@ -354,4 +354,14 @@ config WAFER_WDT
Documentation/modules.txt. The module will be called
wafer5823wdt.o
config CPU5_WDT
tristate "SMA CPU5 Watchdog"
depends on WATCHDOG
---help---
TBD.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called cpu5wdt.o. If you want to compile it as a
module, say M here and read <file:Documentation/modules.txt>.
endmenu
......@@ -29,3 +29,4 @@ obj-$(CONFIG_SC520_WDT) += sc520_wdt.o
obj-$(CONFIG_ALIM7101_WDT) += alim7101_wdt.o
obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o
obj-$(CONFIG_CPU5_WDT) += cpu5wdt.o
......@@ -220,7 +220,7 @@ static struct notifier_block acq_notifier =
static int __init acq_init(void)
{
printk("WDT driver for Acquire single board computer initialising.\n");
printk(KERN_INFO "WDT driver for Acquire single board computer initialising.\n");
spin_lock_init(&acq_lock);
if (misc_register(&acq_miscdev))
......
......@@ -100,7 +100,7 @@ static void wdt_timer_ping(unsigned long data)
pci_write_config_byte(alim7101_pmu, ALI_7101_WDT, (tmp & ~ALI_WDT_ARM));
pci_write_config_byte(alim7101_pmu, ALI_7101_WDT, (tmp | ALI_WDT_ARM));
} else {
printk(OUR_NAME ": Heartbeat lost! Will not ping the watchdog\n");
printk(KERN_INFO OUR_NAME ": Heartbeat lost! Will not ping the watchdog\n");
}
/* Re-set the timer interval */
timer.expires = jiffies + WDT_INTERVAL;
......@@ -136,7 +136,7 @@ static void wdt_startup(void)
add_timer(&timer);
printk(OUR_NAME ": Watchdog timer is now enabled.\n");
printk(KERN_INFO OUR_NAME ": Watchdog timer is now enabled.\n");
}
static void wdt_turnoff(void)
......@@ -144,7 +144,7 @@ static void wdt_turnoff(void)
/* Stop the timer */
del_timer_sync(&timer);
wdt_change(WDT_DISABLE);
printk(OUR_NAME ": Watchdog timer is now disabled...\n");
printk(KERN_INFO OUR_NAME ": Watchdog timer is now disabled...\n");
}
/*
......@@ -203,7 +203,7 @@ static int fop_close(struct inode * inode, struct file * file)
if(wdt_expect_close)
wdt_turnoff();
else
printk(OUR_NAME ": device file closed unexpectedly. Will not stop the WDT!\n");
printk(KERN_INFO OUR_NAME ": device file closed unexpectedly. Will not stop the WDT!\n");
clear_bit(0, &wdt_is_open);
return 0;
......@@ -262,7 +262,7 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code, void
* reboot with no heartbeat
*/
wdt_change(WDT_ENABLE);
printk(OUR_NAME ": Watchdog timer is now enabled with no heartbeat - should reboot in ~1 second.\n");
printk(KERN_INFO OUR_NAME ": Watchdog timer is now enabled with no heartbeat - should reboot in ~1 second.\n");
}
return NOTIFY_DONE;
}
......
/*
* sma cpu5 watchdog driver
*
* Copyright (C) 2003 Heiko Ronsdorf <hero@ihg.uni-duisburg.de>
*
* 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.
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/miscdevice.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/timer.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <linux/watchdog.h>
/* adjustable parameters */
static int verbose = 0;
static int port = 0x91;
static volatile int ticks = 10000;
#define PFX "cpu5wdt: "
#define CPU5WDT_EXTENT 0x0A
#define CPU5WDT_STATUS_REG 0x00
#define CPU5WDT_TIME_A_REG 0x02
#define CPU5WDT_TIME_B_REG 0x03
#define CPU5WDT_MODE_REG 0x04
#define CPU5WDT_TRIGGER_REG 0x07
#define CPU5WDT_ENABLE_REG 0x08
#define CPU5WDT_RESET_REG 0x09
#define CPU5WDT_INTERVAL (HZ/10+1)
/* some device data */
static struct {
struct semaphore stop;
volatile int running;
struct timer_list timer;
volatile int queue;
int default_ticks;
int min_ticks;
unsigned long inuse;
} cpu5wdt_device;
/* generic helper functions */
static void cpu5wdt_trigger(unsigned long unused)
{
if ( verbose > 2 )
printk(KERN_DEBUG PFX "trigger at %i ticks\n", ticks);
if( cpu5wdt_device.running )
ticks--;
/* keep watchdog alive */
outb(1, port + CPU5WDT_TRIGGER_REG);
/* requeue?? */
if( cpu5wdt_device.queue && ticks ) {
cpu5wdt_device.timer.expires = jiffies + CPU5WDT_INTERVAL;
add_timer(&cpu5wdt_device.timer);
}
else {
/* ticks doesn't matter anyway */
up(&cpu5wdt_device.stop);
}
}
static void cpu5wdt_reset(void)
{
if ( ticks < cpu5wdt_device.min_ticks )
cpu5wdt_device.min_ticks = ticks;
ticks = cpu5wdt_device.default_ticks;
if ( verbose )
printk(KERN_DEBUG PFX "reset (%i ticks)\n", (int) ticks);
}
static void cpu5wdt_start(void)
{
if ( !cpu5wdt_device.queue ) {
cpu5wdt_device.queue = 1;
outb(0, port + CPU5WDT_TIME_A_REG);
outb(0, port + CPU5WDT_TIME_B_REG);
outb(1, port + CPU5WDT_MODE_REG);
outb(0, port + CPU5WDT_RESET_REG);
outb(0, port + CPU5WDT_ENABLE_REG);
cpu5wdt_device.timer.expires = jiffies + CPU5WDT_INTERVAL;
add_timer(&cpu5wdt_device.timer);
}
/* if process dies, counter is not decremented */
cpu5wdt_device.running++;
}
static int cpu5wdt_stop(void)
{
if ( cpu5wdt_device.running )
cpu5wdt_device.running = 0;
ticks = cpu5wdt_device.default_ticks;
if ( verbose )
printk(KERN_CRIT PFX "stop not possible\n");
return -EIO;
}
/* filesystem operations */
static int cpu5wdt_open(struct inode *inode, struct file *file)
{
switch(minor(inode->i_rdev)) {
case WATCHDOG_MINOR:
if ( test_and_set_bit(0, &cpu5wdt_device.inuse) )
return -EBUSY;
break;
default:
return -ENODEV;
}
return 0;
}
static int cpu5wdt_release(struct inode *inode, struct file *file)
{
if(minor(inode->i_rdev)==WATCHDOG_MINOR) {
clear_bit(0, &cpu5wdt_device.inuse);
}
return 0;
}
static int cpu5wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
unsigned int value;
static struct watchdog_info ident =
{
.options = WDIOF_CARDRESET,
.identity = "CPU5 WDT"
};
switch(cmd) {
case WDIOC_KEEPALIVE:
cpu5wdt_reset();
break;
case WDIOC_GETSTATUS:
value = inb(port + CPU5WDT_STATUS_REG);
value = (value >> 2) & 1;
if ( copy_to_user((int *)arg, (int *)&value, sizeof(int)) )
return -EFAULT;
break;
case WDIOC_GETSUPPORT:
if ( copy_to_user((struct watchdog_info *)arg, &ident, sizeof(ident)) )
return -EFAULT;
break;
case WDIOC_SETOPTIONS:
if ( copy_from_user(&value, (int *)arg, sizeof(int)) )
return -EFAULT;
switch(value) {
case WDIOS_ENABLECARD:
cpu5wdt_start();
break;
case WDIOS_DISABLECARD:
return cpu5wdt_stop();
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
return 0;
}
static ssize_t cpu5wdt_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
{
if ( !count )
return -EIO;
cpu5wdt_reset();
return count;
}
static struct file_operations cpu5wdt_fops = {
.owner = THIS_MODULE,
.ioctl = cpu5wdt_ioctl,
.open = cpu5wdt_open,
.write = cpu5wdt_write,
.release = cpu5wdt_release,
};
static struct miscdevice cpu5wdt_misc = {
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &cpu5wdt_fops
};
/* init/exit function */
static int __devinit cpu5wdt_init(void)
{
unsigned int val;
int err;
if ( verbose )
printk(KERN_DEBUG PFX "port=0x%x, verbose=%i\n", port, verbose);
if ( (err = misc_register(&cpu5wdt_misc)) < 0 ) {
printk(KERN_ERR PFX "misc_register failed\n");
goto no_misc;
}
if ( !request_region(port, CPU5WDT_EXTENT, PFX) ) {
printk(KERN_ERR PFX "request_region failed\n");
err = -EBUSY;
goto no_port;
}
/* watchdog reboot? */
val = inb(port + CPU5WDT_STATUS_REG);
val = (val >> 2) & 1;
if ( !val )
printk(KERN_INFO PFX "sorry, was my fault\n");
init_MUTEX_LOCKED(&cpu5wdt_device.stop);
cpu5wdt_device.queue = 0;
cpu5wdt_device.min_ticks = ticks;
clear_bit(0, &cpu5wdt_device.inuse);
init_timer(&cpu5wdt_device.timer);
cpu5wdt_device.timer.function = cpu5wdt_trigger;
cpu5wdt_device.timer.data = 0;
cpu5wdt_device.default_ticks = ticks;
printk(KERN_INFO PFX "init success\n");
return 0;
no_port:
misc_deregister(&cpu5wdt_misc);
no_misc:
return err;
}
static int __devinit cpu5wdt_init_module(void)
{
return cpu5wdt_init();
}
static void __devexit cpu5wdt_exit(void)
{
if ( cpu5wdt_device.queue ) {
cpu5wdt_device.queue = 0;
down(&cpu5wdt_device.stop);
}
misc_deregister(&cpu5wdt_misc);
release_region(port, CPU5WDT_EXTENT);
}
static void __devexit cpu5wdt_exit_module(void)
{
cpu5wdt_exit();
}
/* module entry points */
module_init(cpu5wdt_init_module);
module_exit(cpu5wdt_exit_module);
MODULE_AUTHOR("Heiko Ronsdorf <hero@ihg.uni-duisburg.de>");
MODULE_DESCRIPTION("sma cpu5 watchdog driver");
MODULE_SUPPORTED_DEVICE("sma cpu5 watchdog");
MODULE_LICENSE("GPL");
MODULE_PARM(port, "i");
MODULE_PARM_DESC(port, "base address of watchdog card, default is 0x91");
MODULE_PARM(verbose, "i");
MODULE_PARM_DESC(verbose, "be verbose, default is 0 (no)");
MODULE_PARM(ticks, "i");
MODULE_PARM_DESC(ticks, "count down ticks, default is 10000");
......@@ -453,9 +453,9 @@ static struct file_operations zf_fops = {
};
static struct miscdevice zf_miscdev = {
WATCHDOG_MINOR,
"watchdog",
&zf_fops
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &zf_fops
};
......@@ -464,9 +464,9 @@ static struct miscdevice zf_miscdev = {
* turn the timebomb registers off.
*/
static struct notifier_block zf_notifier = {
zf_notify_sys,
NULL,
0
.notifier_call = zf_notify_sys,
.next = NULL,
.priority = 0
};
static void __init zf_show_action(int act)
......
......@@ -56,6 +56,7 @@
#include <linux/watchdog.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/reboot.h>
#include <asm/uaccess.h>
#include <asm/io.h>
......@@ -197,28 +198,30 @@ void pcwd_showprevstate(void)
if (revision == PCWD_REVISION_A) {
if (card_status & WD_WDRST)
printk("pcwd: Previous reboot was caused by the card.\n");
printk(KERN_INFO "pcwd: Previous reboot was caused by the card.\n");
if (card_status & WD_T110) {
printk("pcwd: Card senses a CPU Overheat. Panicking!\n");
panic("pcwd: CPU Overheat.\n");
printk(KERN_EMERG "pcwd: Card senses a CPU Overheat. Panicking!\n");
printk(KERN_EMERG "pcwd: CPU Overheat.\n");
machine_power_off();
}
if ((!(card_status & WD_WDRST)) &&
(!(card_status & WD_T110)))
printk("pcwd: Cold boot sense.\n");
printk(KERN_INFO "pcwd: Cold boot sense.\n");
} else {
if (card_status & 0x01)
printk("pcwd: Previous reboot was caused by the card.\n");
printk(KERN_INFO "pcwd: Previous reboot was caused by the card.\n");
if (card_status & 0x04) {
printk("pcwd: Card senses a CPU Overheat. Panicking!\n");
panic("pcwd: CPU Overheat.\n");
printk(KERN_EMERG "pcwd: Card senses a CPU Overheat. Panicking!\n");
printk(KERN_EMERG "pcwd: CPU Overheat.\n");
machine_power_off();
}
if ((!(card_status & 0x01)) &&
(!(card_status & 0x04)))
printk("pcwd: Cold boot sense.\n");
printk(KERN_INFO "pcwd: Cold boot sense.\n");
}
}
......@@ -275,8 +278,10 @@ static int pcwd_ioctl(struct inode *inode, struct file *file,
{
rv |= WDIOF_OVERHEAT;
if (temp_panic)
panic("pcwd: Temperature overheat trip!\n");
if (temp_panic) {
printk (KERN_INFO "pcwd: Temperature overheat trip!\n");
machine_power_off();
}
}
}
else
......@@ -288,8 +293,10 @@ static int pcwd_ioctl(struct inode *inode, struct file *file,
{
rv |= WDIOF_OVERHEAT;
if (temp_panic)
panic("pcwd: Temperature overheat trip!\n");
if (temp_panic) {
printk (KERN_INFO "pcwd: Temperature overheat trip!\n");
machine_power_off();
}
}
}
......@@ -350,7 +357,7 @@ static int pcwd_ioctl(struct inode *inode, struct file *file,
spin_unlock(&io_lock);
if ((cdat & 0x10) == 0)
{
printk("pcwd: Could not disable card.\n");
printk(KERN_INFO "pcwd: Could not disable card.\n");
return -EIO;
}
......@@ -365,7 +372,7 @@ static int pcwd_ioctl(struct inode *inode, struct file *file,
spin_unlock(&io_lock);
if (cdat & 0x10)
{
printk("pcwd: Could not enable card.\n");
printk(KERN_INFO "pcwd: Could not enable card.\n");
return -EIO;
}
return 0;
......@@ -592,7 +599,7 @@ static int __init pcwatchdog_init(void)
revision = PCWD_REVISION_A;
printk("pcwd: v%s Ken Hollis (kenji@bitgate.com)\n", WD_VER);
printk(KERN_INFO "pcwd: v%s Ken Hollis (kenji@bitgate.com)\n", WD_VER);
/* Initial variables */
supports_temp = 0;
......@@ -611,7 +618,7 @@ static int __init pcwatchdog_init(void)
}
if (!found) {
printk("pcwd: No card detected, or port not available.\n");
printk(KERN_INFO "pcwd: No card detected, or port not available.\n");
return(-EIO);
}
#endif
......@@ -624,9 +631,9 @@ static int __init pcwatchdog_init(void)
revision = get_revision();
if (revision == PCWD_REVISION_A)
printk("pcwd: PC Watchdog (REV.A) detected at port 0x%03x\n", current_readport);
printk(KERN_INFO "pcwd: PC Watchdog (REV.A) detected at port 0x%03x\n", current_readport);
else if (revision == PCWD_REVISION_C)
printk("pcwd: PC Watchdog (REV.C) detected at port 0x%03x (Firmware version: %s)\n",
printk(KERN_INFO "pcwd: PC Watchdog (REV.C) detected at port 0x%03x (Firmware version: %s)\n",
current_readport, get_firmware());
else {
/* Should NEVER happen, unless get_revision() fails. */
......@@ -635,7 +642,7 @@ static int __init pcwatchdog_init(void)
}
if (supports_temp)
printk("pcwd: Temperature Option Detected.\n");
printk(KERN_INFO "pcwd: Temperature Option Detected.\n");
debug_off();
......
......@@ -267,9 +267,9 @@ static struct file_operations wdt_fops = {
};
static struct miscdevice wdt_miscdev = {
WATCHDOG_MINOR,
"watchdog",
&wdt_fops
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &wdt_fops
};
/*
......@@ -291,9 +291,9 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
static struct notifier_block wdt_notifier=
{
wdt_notify_sys,
0,
0
.notifier_call = wdt_notify_sys,
.next = NULL,
.priority = 0
};
static void __exit sbc60xxwdt_unload(void)
......
......@@ -297,18 +297,18 @@ static struct notifier_block sc1200wdt_notifier =
static struct file_operations sc1200wdt_fops =
{
owner: THIS_MODULE,
write: sc1200wdt_write,
ioctl: sc1200wdt_ioctl,
open: sc1200wdt_open,
release: sc1200wdt_release
.owner = THIS_MODULE,
.write = sc1200wdt_write,
.ioctl = sc1200wdt_ioctl,
.open = sc1200wdt_open,
.release = sc1200wdt_release
};
static struct miscdevice sc1200wdt_miscdev =
{
minor: WATCHDOG_MINOR,
name: "watchdog",
fops: &sc1200wdt_fops,
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &sc1200wdt_fops,
};
......@@ -397,10 +397,12 @@ static int __init sc1200wdt_init(void)
goto out_clean;
}
#if defined CONFIG_PNP
/* now that the user has specified an IO port and we haven't detected
* any devices, disable pnp support */
isapnp = 0;
pnp_unregister_driver(&scl200wdt_pnp_driver);
#endif
if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
......@@ -484,5 +486,3 @@ module_exit(sc1200wdt_exit);
MODULE_AUTHOR("Zwane Mwaikambo <zwane@commfireservices.com>");
MODULE_DESCRIPTION("Driver for National Semiconductor PC87307/PC97307 watchdog component");
MODULE_LICENSE("GPL");
EXPORT_NO_SYMBOLS;
......@@ -281,18 +281,18 @@ static int fop_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
}
static struct file_operations wdt_fops = {
owner: THIS_MODULE,
llseek: fop_llseek,
write: fop_write,
open: fop_open,
release: fop_close,
ioctl: fop_ioctl
.owner = THIS_MODULE,
.llseek = fop_llseek,
.write = fop_write,
.open = fop_open,
.release = fop_close,
.ioctl = fop_ioctl
};
static struct miscdevice wdt_miscdev = {
WATCHDOG_MINOR,
"watchdog",
&wdt_fops
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &wdt_fops
};
/*
......@@ -314,9 +314,9 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
static struct notifier_block wdt_notifier=
{
wdt_notify_sys,
0,
0
.notifier_call = wdt_notify_sys,
.next = NULL,
.priority = 0
};
static void __exit sc520_wdt_unload(void)
......
......@@ -275,9 +275,9 @@ static struct file_operations wdt_fops = {
};
static struct miscdevice wdt_miscdev = {
WATCHDOG_MINOR,
"watchdog",
&wdt_fops
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &wdt_fops
};
/*
......@@ -299,9 +299,9 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
static struct notifier_block wdt_notifier=
{
wdt_notify_sys,
0,
0
.notifier_call = wdt_notify_sys,
.next = NULL,
.priority = 0
};
static void __exit w83877f_wdt_unload(void)
......
......@@ -198,17 +198,17 @@ static int wafwdt_notify_sys(struct notifier_block *this, unsigned long code, vo
*/
static struct file_operations wafwdt_fops = {
owner:THIS_MODULE,
write:wafwdt_write,
ioctl:wafwdt_ioctl,
open:wafwdt_open,
release:wafwdt_close,
.owner = THIS_MODULE,
.write = wafwdt_write,
.ioctl = wafwdt_ioctl,
.open = wafwdt_open,
.release = wafwdt_close,
};
static struct miscdevice wafwdt_miscdev = {
WATCHDOG_MINOR,
"watchdog",
&wafwdt_fops
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &wafwdt_fops
};
/*
......@@ -217,9 +217,9 @@ static struct miscdevice wafwdt_miscdev = {
*/
static struct notifier_block wafwdt_notifier = {
wafwdt_notify_sys,
NULL,
0
.notifier_call = wafwdt_notify_sys,
.next = NULL,
.priority = 0
};
static int __init wafwdt_init(void)
......
......@@ -465,17 +465,17 @@ static struct file_operations wdt_fops = {
static struct miscdevice wdt_miscdev=
{
WATCHDOG_MINOR,
"watchdog",
&wdt_fops
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &wdt_fops
};
#ifdef CONFIG_WDT_501
static struct miscdevice temp_miscdev=
{
TEMP_MINOR,
"temperature",
&wdt_fops
.minor = TEMP_MINOR,
.name = "temperature",
.fops = &wdt_fops
};
#endif
......@@ -486,9 +486,9 @@ static struct miscdevice temp_miscdev=
static struct notifier_block wdt_notifier=
{
wdt_notify_sys,
NULL,
0
.notifier_call = wdt_notify_sys,
.next = NULL,
.priority = 0
};
/**
......
......@@ -258,7 +258,7 @@ static int wdt977_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
static struct watchdog_info ident = {
identity : "Winbond 83977"
.identity = "Winbond 83977"
};
int temp;
......
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