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Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog

Browse Source 
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] i6300esb.c: start locking
  [WATCHDOG] i6300esb.c: convert to platform device driver
  [WATCHDOG] wdt.c: remove #ifdef CONFIG_WDT_501
  [WATCHDOG] Fix io.h & uaccess.h includes.
  [WATCHDOG] More coding-style and trivial clean-up
  [WATCHDOG] struct file_operations should be const
  [WATCHDOG] cpwd.c: Coding style - Clean-up
  [WATCHDOG] hpwdt.c: Add new HP BMC controller. 
  [PATCH 13/13] drivers/watchdog: use USB API functions rather than constants
  [WATCHDOG] orion5x_wdt: fix compile issue by providing tclk as platform data
  [WATCHDOG] rc32434_wdt: make sure watchdog is not running at startup
  [WATCHDOG] rc32434_wdt: add spin_locking
  [WATCHDOG] rc32434_wdt: add shutdown method
  [WATCHDOG] rc32434_wdt: add timeout module parameter
  [WATCHDOG] rc32434_wdt: clean-up driver
  [WATCHDOG] davinci: convert to ioremap() + io[read|write]
  [WATCHDOG] w83697ug: add error checking
  [WATCHDOG] cpwd.c & riowd.c - unlocked_ioctl
This commit is contained in:
Linus Torvalds 2009-03-26 15:48:11 -07:00
commit 8690d8a9f6
42 changed files with 788 additions and 531 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
arch/arm/mach-orion5x/common.c
View File

@ -31,6 +31,7 @@
#include <plat/ehci-orion.h>
#include <plat/mv_xor.h>
#include <plat/orion_nand.h>
#include <plat/orion5x_wdt.h>
#include <plat/time.h>
#include "common.h"
@ -532,6 +533,29 @@ void __init orion5x_xor_init(void)
}
/*****************************************************************************
* Watchdog
****************************************************************************/
static struct orion5x_wdt_platform_data orion5x_wdt_data = {
.tclk = 0,
};
static struct platform_device orion5x_wdt_device = {
.name = "orion5x_wdt",
.id = -1,
.dev = {
.platform_data = &orion5x_wdt_data,
},
.num_resources = 0,
};
void __init orion5x_wdt_init(void)
{
orion5x_wdt_data.tclk = orion5x_tclk;
platform_device_register(&orion5x_wdt_device);
}
/*****************************************************************************
* Time handling
****************************************************************************/
@ -631,6 +655,11 @@ void __init orion5x_init(void)
printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
disable_hlt();
}
/*
* Register watchdog driver
*/
orion5x_wdt_init();
}
/*

18
arch/arm/plat-orion/include/plat/orion5x_wdt.h Normal file
View File

@ -0,0 +1,18 @@
/*
* arch/arm/plat-orion/include/plat/orion5x_wdt.h
*
* 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.
*/
#ifndef __PLAT_ORION5X_WDT_H
#define __PLAT_ORION5X_WDT_H
struct orion5x_wdt_platform_data {
u32 tclk; /* no <linux/clk.h> support yet */
};
#endif

15
drivers/watchdog/Kconfig
View File

@ -940,21 +940,6 @@ config WDT
To compile this driver as a module, choose M here: the
module will be called wdt.
config WDT_501
bool "WDT501 features"
depends on WDT
help
Saying Y here and creating a character special file /dev/temperature
with major number 10 and minor number 131 ("man mknod") will give
you a thermometer inside your computer: reading from
/dev/temperature yields one byte, the temperature in degrees
Fahrenheit. This works only if you have a WDT501P watchdog board
installed.
If you want to enable the Fan Tachometer on the WDT501P, then you
can do this via the tachometer parameter. Only do this if you have a
fan tachometer actually set up.
#
# PCI-based Watchdog Cards
#

8
drivers/watchdog/acquirewdt.c
View File

@ -1,7 +1,7 @@
/*
* Acquire Single Board Computer Watchdog Timer driver
*
* Based on wdt.c. Original copyright messages:
* Based on wdt.c. Original copyright messages:
*
* (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
* All Rights Reserved.
@ -17,9 +17,9 @@
*
* (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* Can't add timeout - driver doesn't allow changing value
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* Can't add timeout - driver doesn't allow changing value
*/
/*

7
drivers/watchdog/advantechwdt.c
View File

@ -138,7 +138,9 @@ static long advwdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
void __user *argp = (void __user *)arg;
int __user *p = argp;
static struct watchdog_info ident = {
.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE,
.options = WDIOF_KEEPALIVEPING |
WDIOF_SETTIMEOUT |
WDIOF_MAGICCLOSE,
.firmware_version = 1,
.identity = WATCHDOG_NAME,
};
@ -259,7 +261,8 @@ static int __devinit advwdt_probe(struct platform_device *dev)
goto unreg_stop;
}
/* Check that the heartbeat value is within it's range ; if not reset to the default */
/* Check that the heartbeat value is within it's range ;
* if not reset to the default */
if (advwdt_set_heartbeat(timeout)) {
advwdt_set_heartbeat(WATCHDOG_TIMEOUT);
printk(KERN_INFO PFX

20
drivers/watchdog/alim1535_wdt.c
View File

@ -60,7 +60,7 @@ static void ali_start(void)
pci_read_config_dword(ali_pci, 0xCC, &val);
val &= ~0x3F; /* Mask count */
val |= (1<<25) | ali_timeout_bits;
val |= (1 << 25) | ali_timeout_bits;
pci_write_config_dword(ali_pci, 0xCC, val);
spin_unlock(&ali_lock);
@ -79,8 +79,8 @@ static void ali_stop(void)
spin_lock(&ali_lock);
pci_read_config_dword(ali_pci, 0xCC, &val);
val &= ~0x3F; /* Mask count to zero (disabled) */
val &= ~(1<<25);/* and for safety mask the reset enable */
val &= ~0x3F; /* Mask count to zero (disabled) */
val &= ~(1 << 25); /* and for safety mask the reset enable */
pci_write_config_dword(ali_pci, 0xCC, val);
spin_unlock(&ali_lock);
@ -89,7 +89,7 @@ static void ali_stop(void)
/*
* ali_keepalive - send a keepalive to the watchdog
*
* Send a keepalive to the timer (actually we restart the timer).
* Send a keepalive to the timer (actually we restart the timer).
*/
static void ali_keepalive(void)
@ -109,11 +109,11 @@ static int ali_settimer(int t)
if (t < 0)
return -EINVAL;
else if (t < 60)
ali_timeout_bits = t|(1<<6);
ali_timeout_bits = t|(1 << 6);
else if (t < 3600)
ali_timeout_bits = (t/60)|(1<<7);
ali_timeout_bits = (t / 60)|(1 << 7);
else if (t < 18000)
ali_timeout_bits = (t/300)|(1<<6)|(1<<7);
ali_timeout_bits = (t / 300)|(1 << 6)|(1 << 7);
else
return -EINVAL;
@ -138,7 +138,7 @@ static int ali_settimer(int t)
*/
static ssize_t ali_write(struct file *file, const char __user *data,
size_t len, loff_t *ppos)
size_t len, loff_t *ppos)
{
/* See if we got the magic character 'V' and reload the timer */
if (len) {
@ -348,9 +348,9 @@ static int __init ali_find_watchdog(void)
/* Timer bits */
wdog &= ~0x3F;
/* Issued events */
wdog &= ~((1<<27)|(1<<26)|(1<<25)|(1<<24));
wdog &= ~((1 << 27)|(1 << 26)|(1 << 25)|(1 << 24));
/* No monitor bits */
wdog &= ~((1<<16)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9));
wdog &= ~((1 << 16)|(1 << 13)|(1 << 12)|(1 << 11)|(1 << 10)|(1 << 9));
pci_write_config_dword(pdev, 0xCC, wdog);

6
drivers/watchdog/alim7101_wdt.c
View File

@ -355,7 +355,8 @@ static int __init alim7101_wdt_init(void)
alim7101_pmu = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
NULL);
if (!alim7101_pmu) {
printk(KERN_INFO PFX "ALi M7101 PMU not present - WDT not set\n");
printk(KERN_INFO PFX
"ALi M7101 PMU not present - WDT not set\n");
return -EBUSY;
}
@ -399,7 +400,8 @@ static int __init alim7101_wdt_init(void)
rc = misc_register(&wdt_miscdev);
if (rc) {
printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
printk(KERN_ERR PFX
"cannot register miscdev on minor=%d (err=%d)\n",
wdt_miscdev.minor, rc);
goto err_out_reboot;
}

2
drivers/watchdog/at91sam9_wdt.c
View File

@ -201,7 +201,7 @@ static long at91_wdt_ioctl(struct file *file,
* Pat the watchdog whenever device is written to.
*/
static ssize_t at91_wdt_write(struct file *file, const char *data, size_t len,
loff_t *ppos)
loff_t *ppos)
{
if (!len)
return 0;

101
drivers/watchdog/cpwd.c
View File

@ -1,13 +1,13 @@
/* cpwd.c - driver implementation for hardware watchdog
* timers found on Sun Microsystems CP1400 and CP1500 boards.
*
* This device supports both the generic Linux watchdog
* This device supports both the generic Linux watchdog
* interface and Solaris-compatible ioctls as best it is
* able.
*
* NOTE: CP1400 systems appear to have a defective intr_mask
* register on the PLD, preventing the disabling of
* timer interrupts. We use a timer to periodically
* timer interrupts. We use a timer to periodically
* reset 'stopped' watchdogs on affected platforms.
*
* Copyright (c) 2000 Eric Brower (ebrower@usa.net)
@ -28,10 +28,9 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/uaccess.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/watchdog.h>
#define DRIVER_NAME "cpwd"
@ -43,8 +42,8 @@
#define WD_BLIMIT 0xFFFF
#define WD0_MINOR 212
#define WD1_MINOR 213
#define WD2_MINOR 214
#define WD1_MINOR 213
#define WD2_MINOR 214
/* Internal driver definitions. */
#define WD0_ID 0
@ -91,16 +90,16 @@ struct cpwd {
static struct cpwd *cpwd_device;
/* Sun uses Altera PLD EPF8820ATC144-4
/* Sun uses Altera PLD EPF8820ATC144-4
* providing three hardware watchdogs:
*
* 1) RIC - sends an interrupt when triggered
* 2) XIR - asserts XIR_B_RESET when triggered, resets CPU
* 3) POR - asserts POR_B_RESET when triggered, resets CPU, backplane, board
* 1) RIC - sends an interrupt when triggered
* 2) XIR - asserts XIR_B_RESET when triggered, resets CPU
* 3) POR - asserts POR_B_RESET when triggered, resets CPU, backplane, board
*
*** Timer register block definition (struct wd_timer_regblk)
*
* dcntr and limit registers (halfword access):
* dcntr and limit registers (halfword access):
* -------------------
* | 15 | ...| 1 | 0 |
* -------------------
@ -108,7 +107,8 @@ static struct cpwd *cpwd_device;
* -------------------
* dcntr - Current 16-bit downcounter value.
* When downcounter reaches '0' watchdog expires.
* Reading this register resets downcounter with 'limit' value.
* Reading this register resets downcounter with
* 'limit' value.
* limit - 16-bit countdown value in 1/10th second increments.
* Writing this register begins countdown with input value.
* Reading from this register does not affect counter.
@ -158,11 +158,11 @@ static int wd0_timeout = 0;
static int wd1_timeout = 0;
static int wd2_timeout = 0;
module_param (wd0_timeout, int, 0);
module_param(wd0_timeout, int, 0);
MODULE_PARM_DESC(wd0_timeout, "Default watchdog0 timeout in 1/10secs");
module_param (wd1_timeout, int, 0);
module_param(wd1_timeout, int, 0);
MODULE_PARM_DESC(wd1_timeout, "Default watchdog1 timeout in 1/10secs");
module_param (wd2_timeout, int, 0);
module_param(wd2_timeout, int, 0);
MODULE_PARM_DESC(wd2_timeout, "Default watchdog2 timeout in 1/10secs");
MODULE_AUTHOR("Eric Brower <ebrower@usa.net>");
@ -201,9 +201,9 @@ static u8 cpwd_readb(void __iomem *addr)
static void cpwd_toggleintr(struct cpwd *p, int index, int enable)
{
unsigned char curregs = cpwd_readb(p->regs + PLD_IMASK);
unsigned char setregs =
(index == -1) ?
(WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) :
unsigned char setregs =
(index == -1) ?
(WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) :
(p->devs[index].intr_mask);
if (enable == WD_INTR_ON)
@ -303,24 +303,24 @@ static int cpwd_getstatus(struct cpwd *p, int index)
unsigned char ret = WD_STOPPED;
/* determine STOPPED */
if (!stat)
if (!stat)
return ret;
/* determine EXPIRED vs FREERUN vs RUNNING */
else if (WD_S_EXPIRED & stat) {
ret = WD_EXPIRED;
} else if(WD_S_RUNNING & stat) {
} else if (WD_S_RUNNING & stat) {
if (intr & p->devs[index].intr_mask) {
ret = WD_FREERUN;
} else {
/* Fudge WD_EXPIRED status for defective CP1400--
* IF timer is running
* AND brokenstop is set
* IF timer is running
* AND brokenstop is set
* AND an interrupt has been serviced
* we are WD_EXPIRED.
*
* IF timer is running
* AND brokenstop is set
* IF timer is running
* AND brokenstop is set
* AND no interrupt has been serviced
* we are WD_FREERUN.
*/
@ -329,7 +329,8 @@ static int cpwd_getstatus(struct cpwd *p, int index)
if (p->devs[index].runstatus & WD_STAT_SVCD) {
ret = WD_EXPIRED;
} else {
/* we could as well pretend we are expired */
/* we could as well pretend
* we are expired */
ret = WD_FREERUN;
}
} else {
@ -342,7 +343,7 @@ static int cpwd_getstatus(struct cpwd *p, int index)
if (p->devs[index].runstatus & WD_STAT_SVCD)
ret |= WD_SERVICED;
return(ret);
return ret;
}
static irqreturn_t cpwd_interrupt(int irq, void *dev_id)
@ -367,22 +368,22 @@ static int cpwd_open(struct inode *inode, struct file *f)
struct cpwd *p = cpwd_device;
lock_kernel();
switch(iminor(inode)) {
case WD0_MINOR:
case WD1_MINOR:
case WD2_MINOR:
break;
switch (iminor(inode)) {
case WD0_MINOR:
case WD1_MINOR:
case WD2_MINOR:
break;
default:
unlock_kernel();
return -ENODEV;
default:
unlock_kernel();
return -ENODEV;
}
/* Register IRQ on first open of device */
if (!p->initialized) {
if (request_irq(p->irq, &cpwd_interrupt,
if (request_irq(p->irq, &cpwd_interrupt,
IRQF_SHARED, DRIVER_NAME, p)) {
printk(KERN_ERR PFX "Cannot register IRQ %d\n",
printk(KERN_ERR PFX "Cannot register IRQ %d\n",
p->irq);
unlock_kernel();
return -EBUSY;
@ -400,8 +401,7 @@ static int cpwd_release(struct inode *inode, struct file *file)
return 0;
}
static int cpwd_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
static struct watchdog_info info = {
.options = WDIOF_SETTIMEOUT,
@ -409,6 +409,7 @@ static int cpwd_ioctl(struct inode *inode, struct file *file,
.identity = DRIVER_NAME,
};
void __user *argp = (void __user *)arg;
struct inode *inode = file->f_path.dentry->d_inode;
int index = iminor(inode) - WD0_MINOR;
struct cpwd *p = cpwd_device;
int setopt = 0;
@ -442,7 +443,7 @@ static int cpwd_ioctl(struct inode *inode, struct file *file,
cpwd_starttimer(p, index);
} else {
return -EINVAL;
}
}
break;
/* Solaris-compatible IOCTLs */
@ -458,7 +459,7 @@ static int cpwd_ioctl(struct inode *inode, struct file *file,
case WIOCSTOP:
if (p->enabled)
return(-EINVAL);
return -EINVAL;
cpwd_stoptimer(p, index);
break;
@ -481,7 +482,7 @@ static long cpwd_compat_ioctl(struct file *file, unsigned int cmd,
case WIOCSTOP:
case WIOCGSTAT:
lock_kernel();
rval = cpwd_ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
rval = cpwd_ioctl(file, cmd, arg);
unlock_kernel();
break;
@ -493,7 +494,7 @@ static long cpwd_compat_ioctl(struct file *file, unsigned int cmd,
return rval;
}
static ssize_t cpwd_write(struct file *file, const char __user *buf,
static ssize_t cpwd_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
struct inode *inode = file->f_path.dentry->d_inode;
@ -508,20 +509,20 @@ static ssize_t cpwd_write(struct file *file, const char __user *buf,
return 0;
}
static ssize_t cpwd_read(struct file * file, char __user *buffer,
static ssize_t cpwd_read(struct file *file, char __user *buffer,
size_t count, loff_t *ppos)
{
return -EINVAL;
}
static const struct file_operations cpwd_fops = {
.owner = THIS_MODULE,
.ioctl = cpwd_ioctl,
.compat_ioctl = cpwd_compat_ioctl,
.open = cpwd_open,
.write = cpwd_write,
.read = cpwd_read,
.release = cpwd_release,
.owner = THIS_MODULE,
.unlocked_ioctl = cpwd_ioctl,
.compat_ioctl = cpwd_compat_ioctl,
.open = cpwd_open,
.write = cpwd_write,
.read = cpwd_read,
.release = cpwd_release,
};
static int __devinit cpwd_probe(struct of_device *op,

45
drivers/watchdog/davinci_wdt.c
View File

@ -24,7 +24,7 @@
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <linux/device.h>
#define MODULE_NAME "DAVINCI-WDT: "
@ -75,9 +75,9 @@ static void wdt_service(void)
spin_lock(&io_lock);
/* put watchdog in service state */
davinci_writel(WDKEY_SEQ0, wdt_base + WDTCR);
iowrite32(WDKEY_SEQ0, wdt_base + WDTCR);
/* put watchdog in active state */
davinci_writel(WDKEY_SEQ1, wdt_base + WDTCR);
iowrite32(WDKEY_SEQ1, wdt_base + WDTCR);
spin_unlock(&io_lock);
}
@ -90,29 +90,29 @@ static void wdt_enable(void)
spin_lock(&io_lock);
/* disable, internal clock source */
davinci_writel(0, wdt_base + TCR);
iowrite32(0, wdt_base + TCR);
/* reset timer, set mode to 64-bit watchdog, and unreset */
davinci_writel(0, wdt_base + TGCR);
iowrite32(0, wdt_base + TGCR);
tgcr = TIMMODE_64BIT_WDOG | TIM12RS_UNRESET | TIM34RS_UNRESET;
davinci_writel(tgcr, wdt_base + TGCR);
iowrite32(tgcr, wdt_base + TGCR);
/* clear counter regs */
davinci_writel(0, wdt_base + TIM12);
davinci_writel(0, wdt_base + TIM34);
iowrite32(0, wdt_base + TIM12);
iowrite32(0, wdt_base + TIM34);
/* set timeout period */
timer_margin = (((u64)heartbeat * CLOCK_TICK_RATE) & 0xffffffff);
davinci_writel(timer_margin, wdt_base + PRD12);
iowrite32(timer_margin, wdt_base + PRD12);
timer_margin = (((u64)heartbeat * CLOCK_TICK_RATE) >> 32);
davinci_writel(timer_margin, wdt_base + PRD34);
iowrite32(timer_margin, wdt_base + PRD34);
/* enable run continuously */
davinci_writel(ENAMODE12_PERIODIC, wdt_base + TCR);
iowrite32(ENAMODE12_PERIODIC, wdt_base + TCR);
/* Once the WDT is in pre-active state write to
* TIM12, TIM34, PRD12, PRD34, TCR, TGCR, WDTCR are
* write protected (except for the WDKEY field)
*/
/* put watchdog in pre-active state */
davinci_writel(WDKEY_SEQ0 | WDEN, wdt_base + WDTCR);
iowrite32(WDKEY_SEQ0 | WDEN, wdt_base + WDTCR);
/* put watchdog in active state */
davinci_writel(WDKEY_SEQ1 | WDEN, wdt_base + WDTCR);
iowrite32(WDKEY_SEQ1 | WDEN, wdt_base + WDTCR);
spin_unlock(&io_lock);
}
@ -197,17 +197,16 @@ static int davinci_wdt_probe(struct platform_device *pdev)
{
int ret = 0, size;
struct resource *res;
struct device *dev = &pdev->dev;
if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
heartbeat = DEFAULT_HEARTBEAT;
printk(KERN_INFO MODULE_NAME
"DaVinci Watchdog Timer: heartbeat %d sec\n", heartbeat);
dev_info(dev, "heartbeat %d sec\n", heartbeat);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
printk(KERN_INFO MODULE_NAME
"failed to get memory region resource\n");
dev_err(dev, "failed to get memory region resource\n");
return -ENOENT;
}
@ -215,20 +214,26 @@ static int davinci_wdt_probe(struct platform_device *pdev)
wdt_mem = request_mem_region(res->start, size, pdev->name);
if (wdt_mem == NULL) {
printk(KERN_INFO MODULE_NAME "failed to get memory region\n");
dev_err(dev, "failed to get memory region\n");
return -ENOENT;
}
wdt_base = (void __iomem *)(res->start);
wdt_base = ioremap(res->start, size);
if (!wdt_base) {
dev_err(dev, "failed to map memory region\n");
return -ENOMEM;
}
ret = misc_register(&davinci_wdt_miscdev);
if (ret < 0) {
printk(KERN_ERR MODULE_NAME "cannot register misc device\n");
dev_err(dev, "cannot register misc device\n");
release_resource(wdt_mem);
kfree(wdt_mem);
} else {
set_bit(WDT_DEVICE_INITED, &wdt_status);
}
iounmap(wdt_base);
return ret;
}

22
drivers/watchdog/eurotechwdt.c
View File

@ -8,19 +8,19 @@
* Based on wdt.c.
* Original copyright messages:
*
* (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
* (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
* All Rights Reserved.
*
* 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 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.
*
* Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
* warranty for any of this software. This material is provided
* "AS-IS" and at no charge.
* Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
* warranty for any of this software. This material is provided
* "AS-IS" and at no charge.
*
* (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>*
* (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>*
*/
/* Changelog:
@ -37,7 +37,7 @@
* add expect_close support
*
* 2002.05.30 - Joel Becker <joel.becker@oracle.com>
* Added Matt Domsch's nowayout module option.
* Added Matt Domsch's nowayout module option.
*/
/*
@ -151,7 +151,7 @@ static void eurwdt_activate_timer(void)
if (irq == 0)
printk(KERN_INFO ": interrupt disabled\n");
eurwdt_write_reg(WDT_TIMER_CFG, irq<<4);
eurwdt_write_reg(WDT_TIMER_CFG, irq << 4);
eurwdt_write_reg(WDT_UNIT_SEL, WDT_UNIT_SECS); /* we use seconds */
eurwdt_set_timeout(0); /* the default timeout */

11
drivers/watchdog/geodewdt.c
View File

@ -34,11 +34,15 @@
static int timeout = WATCHDOG_TIMEOUT;
module_param(timeout, int, 0);
MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1<= timeout <=131, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ".");
MODULE_PARM_DESC(timeout,
"Watchdog timeout in seconds. 1<= timeout <=131, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
static struct platform_device *geodewdt_platform_device;
static unsigned long wdt_flags;
@ -269,7 +273,8 @@ static int __init geodewdt_init(void)
if (ret)
return ret;
geodewdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);
geodewdt_platform_device = platform_device_register_simple(DRV_NAME,
-1, NULL, 0);
if (IS_ERR(geodewdt_platform_device)) {
ret = PTR_ERR(geodewdt_platform_device);
goto err;

20
drivers/watchdog/hpwdt.c
View File

@ -47,6 +47,7 @@
#define PCI_BIOS32_PARAGRAPH_LEN 16
#define PCI_ROM_BASE1 0x000F0000
#define ROM_SIZE 0x10000
#define HPWDT_VERSION "1.01"
struct bios32_service_dir {
u32 signature;
@ -130,17 +131,14 @@ static void *cru_rom_addr;
static struct cmn_registers cmn_regs;
static struct pci_device_id hpwdt_devices[] = {
{
.vendor = PCI_VENDOR_ID_COMPAQ,
.device = 0xB203,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
{ PCI_DEVICE(PCI_VENDOR_ID_COMPAQ, 0xB203) },
{ PCI_DEVICE(PCI_VENDOR_ID_HP, 0x3306) },
{0}, /* terminate list */
};
MODULE_DEVICE_TABLE(pci, hpwdt_devices);
extern asmlinkage void asminline_call(struct cmn_registers *pi86Regs, unsigned long *pRomEntry);
extern asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
unsigned long *pRomEntry);
#ifndef CONFIG_X86_64
/* --32 Bit Bios------------------------------------------------------------ */
@ -605,7 +603,7 @@ static long hpwdt_ioctl(struct file *file, unsigned int cmd,
/*
* Kernel interfaces
*/
static struct file_operations hpwdt_fops = {
static const struct file_operations hpwdt_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = hpwdt_write,
@ -704,10 +702,11 @@ static int __devinit hpwdt_init_one(struct pci_dev *dev,
}
printk(KERN_INFO
"hp Watchdog Timer Driver: 1.00"
"hp Watchdog Timer Driver: %s"
", timer margin: %d seconds (nowayout=%d)"
", allow kernel dump: %s (default = 0/OFF).\n",
soft_margin, nowayout, (allow_kdump == 0) ? "OFF" : "ON");
HPWDT_VERSION, soft_margin, nowayout,
(allow_kdump == 0) ? "OFF" : "ON");
return 0;
@ -757,6 +756,7 @@ static int __init hpwdt_init(void)
MODULE_AUTHOR("Tom Mingarelli");
MODULE_DESCRIPTION("hp watchdog driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(HPWDT_VERSION);
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
module_param(soft_margin, int, 0);

101
drivers/watchdog/i6300esb.c
View File

@ -13,7 +13,7 @@
*
* The timer is implemented in the following I/O controller hubs:
* (See the intel documentation on http://developer.intel.com.)
* 6300ESB chip : document number 300641-003
* 6300ESB chip : document number 300641-004
*
* 2004YYZZ Ross Biro
* Initial version 0.01
@ -34,7 +34,7 @@
#include <linux/mm.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/reboot.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/ioport.h>
@ -42,7 +42,7 @@
#include <linux/io.h>
/* Module and version information */
#define ESB_VERSION "0.03"
#define ESB_VERSION "0.04"
#define ESB_MODULE_NAME "i6300ESB timer"
#define ESB_DRIVER_NAME ESB_MODULE_NAME ", v" ESB_VERSION
#define PFX ESB_MODULE_NAME ": "
@ -81,6 +81,7 @@ static unsigned long timer_alive;
static struct pci_dev *esb_pci;
static unsigned short triggered; /* The status of the watchdog upon boot */
static char esb_expect_close;
static struct platform_device *esb_platform_device;
/* module parameters */
/* 30 sec default heartbeat (1 < heartbeat < 2*1023) */
@ -114,13 +115,18 @@ static inline void esb_unlock_registers(void)
writeb(ESB_UNLOCK2, ESB_RELOAD_REG);
}
static void esb_timer_start(void)
static int esb_timer_start(void)
{
u8 val;
spin_lock(&esb_lock);
esb_unlock_registers();
writew(ESB_WDT_RELOAD, ESB_RELOAD_REG);
/* Enable or Enable + Lock? */
val = 0x02 | (nowayout ? 0x01 : 0x00);
pci_write_config_byte(esb_pci, ESB_LOCK_REG, val);
spin_unlock(&esb_lock);
return 0;
}
static int esb_timer_stop(void)
@ -207,7 +213,6 @@ static int esb_open(struct inode *inode, struct file *file)
return -EBUSY;
/* Reload and activate timer */
esb_timer_keepalive();
esb_timer_start();
return nonseekable_open(inode, file);
@ -240,7 +245,8 @@ static ssize_t esb_write(struct file *file, const char __user *data,
* five months ago... */
esb_expect_close = 0;
/* scan to see whether or not we got the magic character */
/* scan to see whether or not we got the
* magic character */
for (i = 0; i != len; i++) {
char c;
if (get_user(c, data + i))
@ -292,7 +298,6 @@ static long esb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
}
if (new_options & WDIOS_ENABLECARD) {
esb_timer_keepalive();
esb_timer_start();
retval = 0;
}
@ -318,19 +323,6 @@ static long esb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
}
}
/*
* Notify system
*/
static int esb_notify_sys(struct notifier_block *this,
unsigned long code, void *unused)
{
if (code == SYS_DOWN || code == SYS_HALT)
esb_timer_stop(); /* Turn the WDT off */
return NOTIFY_DONE;
}
/*
* Kernel Interfaces
*/
@ -350,10 +342,6 @@ static struct miscdevice esb_miscdev = {
.fops = &esb_fops,
};
static struct notifier_block esb_notifier = {
.notifier_call = esb_notify_sys,
};
/*
* Data for PCI driver interface
*
@ -372,7 +360,7 @@ MODULE_DEVICE_TABLE(pci, esb_pci_tbl);
* Init & exit routines
*/
static unsigned char __init esb_getdevice(void)
static unsigned char __devinit esb_getdevice(void)
{
u8 val1;
unsigned short val2;
@ -443,7 +431,7 @@ err_devput:
return 0;
}
static int __init watchdog_init(void)
static int __devinit esb_probe(struct platform_device *dev)
{
int ret;
@ -459,19 +447,13 @@ static int __init watchdog_init(void)
"heartbeat value must be 1<heartbeat<2046, using %d\n",
heartbeat);
}
ret = register_reboot_notifier(&esb_notifier);
if (ret != 0) {
printk(KERN_ERR PFX
"cannot register reboot notifier (err=%d)\n", ret);
goto err_unmap;
}
ret = misc_register(&esb_miscdev);
if (ret != 0) {
printk(KERN_ERR PFX
"cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, ret);
goto err_notifier;
goto err_unmap;
}
esb_timer_stop();
printk(KERN_INFO PFX
@ -479,8 +461,6 @@ static int __init watchdog_init(void)
BASEADDR, heartbeat, nowayout);
return 0;
err_notifier:
unregister_reboot_notifier(&esb_notifier);
err_unmap:
iounmap(BASEADDR);
/* err_release: */
@ -492,7 +472,7 @@ err_unmap:
return ret;
}
static void __exit watchdog_cleanup(void)
static int __devexit esb_remove(struct platform_device *dev)
{
/* Stop the timer before we leave */
if (!nowayout)
@ -500,11 +480,58 @@ static void __exit watchdog_cleanup(void)
/* Deregister */
misc_deregister(&esb_miscdev);
unregister_reboot_notifier(&esb_notifier);
iounmap(BASEADDR);
pci_release_region(esb_pci, 0);
pci_disable_device(esb_pci);
pci_dev_put(esb_pci);
return 0;
}
static void esb_shutdown(struct platform_device *dev)
{
esb_timer_stop();
}
static struct platform_driver esb_platform_driver = {
.probe = esb_probe,
.remove = __devexit_p(esb_remove),
.shutdown = esb_shutdown,
.driver = {
.owner = THIS_MODULE,
.name = ESB_MODULE_NAME,
},
};
static int __init watchdog_init(void)
{
int err;
printk(KERN_INFO PFX "Intel 6300ESB WatchDog Timer Driver v%s\n",
ESB_VERSION);
err = platform_driver_register(&esb_platform_driver);
if (err)
return err;
esb_platform_device = platform_device_register_simple(ESB_MODULE_NAME,
-1, NULL, 0);
if (IS_ERR(esb_platform_device)) {
err = PTR_ERR(esb_platform_device);
goto unreg_platform_driver;
}
return 0;
unreg_platform_driver:
platform_driver_unregister(&esb_platform_driver);
return err;
}
static void __exit watchdog_cleanup(void)
{
platform_device_unregister(esb_platform_device);
platform_driver_unregister(&esb_platform_driver);
printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
}
module_init(watchdog_init);

6
drivers/watchdog/iTCO_vendor_support.c
View File

@ -47,7 +47,8 @@
static int vendorsupport;
module_param(vendorsupport, int, 0);
MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default=0 (none), 1=SuperMicro Pent3, 2=SuperMicro Pent4+");
MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default="
"0 (none), 1=SuperMicro Pent3, 2=SuperMicro Pent4+");
/*
* Vendor Specific Support
@ -305,7 +306,8 @@ static void __exit iTCO_vendor_exit_module(void)
module_init(iTCO_vendor_init_module);
module_exit(iTCO_vendor_exit_module);
MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>, R. Seretny <lkpatches@paypc.com>");
MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>, "
"R. Seretny <lkpatches@paypc.com>");
MODULE_DESCRIPTION("Intel TCO Vendor Specific WatchDog Timer Driver Support");
MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE("GPL");

15
drivers/watchdog/iTCO_wdt.c
View File

@ -273,7 +273,9 @@ static struct platform_device *iTCO_wdt_platform_device;
#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */
static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. "
"(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
@ -346,7 +348,8 @@ static int iTCO_wdt_start(void)
/* disable chipset's NO_REBOOT bit */
if (iTCO_wdt_unset_NO_REBOOT_bit()) {
spin_unlock(&iTCO_wdt_private.io_lock);
printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot disabled by hardware\n");
printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, "
"reboot disabled by hardware\n");
return -EIO;
}
@ -669,7 +672,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
/* Check chipset's NO_REBOOT bit */
if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) {
printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot disabled by hardware\n");
printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, "
"reboot disabled by hardware\n");
ret = -ENODEV; /* Cannot reset NO_REBOOT bit */
goto out;
}
@ -716,8 +720,9 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
if not reset to the default */
if (iTCO_wdt_set_heartbeat(heartbeat)) {
iTCO_wdt_set_heartbeat(WATCHDOG_HEARTBEAT);
printk(KERN_INFO PFX "heartbeat value must be 2 < heartbeat < 39 (TCO v1) or 613 (TCO v2), using %d\n",
heartbeat);
printk(KERN_INFO PFX
"heartbeat value must be 2 < heartbeat < 39 (TCO v1) "
"or 613 (TCO v2), using %d\n", heartbeat);
}
ret = misc_register(&iTCO_wdt_miscdev);

12
drivers/watchdog/it87_wdt.c
View File

@ -188,8 +188,8 @@ static inline int superio_inb(int reg)
static inline void superio_outb(int val, int reg)
{
outb(reg, REG);
outb(val, VAL);
outb(reg, REG);
outb(val, VAL);
}
static inline int superio_inw(int reg)
@ -204,10 +204,10 @@ static inline int superio_inw(int reg)
static inline void superio_outw(int val, int reg)
{
outb(reg++, REG);
outb(val >> 8, VAL);
outb(reg, REG);
outb(val, VAL);
outb(reg++, REG);
outb(val >> 8, VAL);
outb(reg, REG);
outb(val, VAL);
}
/* watchdog timer handling */

4
drivers/watchdog/mpc5200_wdt.c
View File

@ -9,8 +9,8 @@
#include <asm/mpc52xx.h>
#define GPT_MODE_WDT (1<<15)
#define GPT_MODE_CE (1<<12)
#define GPT_MODE_WDT (1 << 15)
#define GPT_MODE_CE (1 << 12)
#define GPT_MODE_MS_TIMER (0x4)

2
drivers/watchdog/mpcore_wdt.c
View File

@ -5,7 +5,7 @@
*
* Based on the SoftDog driver:
* (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
* All Rights Reserved.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License

2
drivers/watchdog/mtx-1_wdt.c
View File

@ -5,7 +5,7 @@
* All Rights Reserved.
* http://www.4g-systems.biz
*
* (C) Copyright 2007 OpenWrt.org, Florian Fainelli <florian@openwrt.org>
* (C) Copyright 2007 OpenWrt.org, Florian Fainelli <florian@openwrt.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License

78
drivers/watchdog/orion5x_wdt.c
View File

@ -16,11 +16,13 @@
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/platform_device.h>
#include <linux/watchdog.h>
#include <linux/init.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <plat/orion5x_wdt.h>
/*
* Watchdog timer block registers.
@ -29,13 +31,14 @@
#define WDT_EN 0x0010
#define WDT_VAL (TIMER_VIRT_BASE + 0x0024)
#define ORION5X_TCLK 166666667
#define WDT_MAX_DURATION (0xffffffff / ORION5X_TCLK)
#define WDT_MAX_CYCLE_COUNT 0xffffffff
#define WDT_IN_USE 0
#define WDT_OK_TO_CLOSE 1
static int nowayout = WATCHDOG_NOWAYOUT;
static int heartbeat = WDT_MAX_DURATION; /* (seconds) */
static int heartbeat = -1; /* module parameter (seconds) */
static unsigned int wdt_max_duration; /* (seconds) */
static unsigned int wdt_tclk;
static unsigned long wdt_status;
static spinlock_t wdt_lock;
@ -46,7 +49,7 @@ static void wdt_enable(void)
spin_lock(&wdt_lock);
/* Set watchdog duration */
writel(ORION5X_TCLK * heartbeat, WDT_VAL);
writel(wdt_tclk * heartbeat, WDT_VAL);
/* Clear watchdog timer interrupt */
reg = readl(BRIDGE_CAUSE);
@ -88,7 +91,7 @@ static void wdt_disable(void)
static int orion5x_wdt_get_timeleft(int *time_left)
{
spin_lock(&wdt_lock);
*time_left = readl(WDT_VAL) / ORION5X_TCLK;
*time_left = readl(WDT_VAL) / wdt_tclk;
spin_unlock(&wdt_lock);
return 0;
}
@ -158,7 +161,7 @@ static long orion5x_wdt_ioctl(struct file *file, unsigned int cmd,
if (ret)
break;
if (time <= 0 || time > WDT_MAX_DURATION) {
if (time <= 0 || time > wdt_max_duration) {
ret = -EINVAL;
break;
}
@ -210,23 +213,69 @@ static struct miscdevice orion5x_wdt_miscdev = {
.fops = &orion5x_wdt_fops,
};
static int __init orion5x_wdt_init(void)
static int __devinit orion5x_wdt_probe(struct platform_device *pdev)
{
struct orion5x_wdt_platform_data *pdata = pdev->dev.platform_data;
int ret;
if (pdata) {
wdt_tclk = pdata->tclk;
} else {
printk(KERN_ERR "Orion5x Watchdog misses platform data\n");
return -ENODEV;
}
if (orion5x_wdt_miscdev.parent)
return -EBUSY;
orion5x_wdt_miscdev.parent = &pdev->dev;
wdt_max_duration = WDT_MAX_CYCLE_COUNT / wdt_tclk;
if (heartbeat <= 0 || heartbeat > wdt_max_duration)
heartbeat = wdt_max_duration;
ret = misc_register(&orion5x_wdt_miscdev);
if (ret)
return ret;
printk(KERN_INFO "Orion5x Watchdog Timer: Initial timeout %d sec%s\n",
heartbeat, nowayout ? ", nowayout" : "");
return 0;
}
static int __devexit orion5x_wdt_remove(struct platform_device *pdev)
{
int ret;
spin_lock_init(&wdt_lock);
if (test_bit(WDT_IN_USE, &wdt_status)) {
wdt_disable();
clear_bit(WDT_IN_USE, &wdt_status);
}
ret = misc_register(&orion5x_wdt_miscdev);
if (ret == 0)
printk("Orion5x Watchdog Timer: heartbeat %d sec\n",
heartbeat);
ret = misc_deregister(&orion5x_wdt_miscdev);
if (!ret)
orion5x_wdt_miscdev.parent = NULL;
return ret;
}
static struct platform_driver orion5x_wdt_driver = {
.probe = orion5x_wdt_probe,
.remove = __devexit_p(orion5x_wdt_remove),
.driver = {
.owner = THIS_MODULE,
.name = "orion5x_wdt",
},
};
static int __init orion5x_wdt_init(void)
{
spin_lock_init(&wdt_lock);
return platform_driver_register(&orion5x_wdt_driver);
}
static void __exit orion5x_wdt_exit(void)
{
misc_deregister(&orion5x_wdt_miscdev);
platform_driver_unregister(&orion5x_wdt_driver);
}
module_init(orion5x_wdt_init);
@ -236,8 +285,7 @@ MODULE_AUTHOR("Sylver Bruneau <sylver.bruneau@googlemail.com>");
MODULE_DESCRIPTION("Orion5x Processor Watchdog");
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default is "
__MODULE_STRING(WDT_MAX_DURATION) ")");
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds");
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");

6
drivers/watchdog/pc87413_wdt.c
View File

@ -536,7 +536,8 @@ static int __init pc87413_init(void)
ret = misc_register(&pc87413_miscdev);
if (ret != 0) {
printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
printk(KERN_ERR PFX
"cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, ret);
unregister_reboot_notifier(&pc87413_notifier);
return ret;
@ -574,7 +575,8 @@ static void __exit pc87413_exit(void)
module_init(pc87413_init);
module_exit(pc87413_exit);
MODULE_AUTHOR("Sven Anders <anders@anduras.de>, Marcus Junker <junker@anduras.de>,");
MODULE_AUTHOR("Sven Anders <anders@anduras.de>, "
"Marcus Junker <junker@anduras.de>,");
MODULE_DESCRIPTION("PC87413 WDT driver");
MODULE_LICENSE("GPL");

44
drivers/watchdog/pcwd.c
View File

@ -24,25 +24,25 @@
* version reporting. Added read routine for temperature.
* Removed some extra defines, added an autodetect Revision
* routine.
* 961006 Revised some documentation, fixed some cosmetic bugs. Made
* drivers to panic the system if it's overheating at bootup.
* 961006 Revised some documentation, fixed some cosmetic bugs. Made
* drivers to panic the system if it's overheating at bootup.
* 961118 Changed some verbiage on some of the output, tidied up
* code bits, and added compatibility to 2.1.x.
* 970912 Enabled board on open and disable on close.
* 970912 Enabled board on open and disable on close.
* 971107 Took account of recent VFS changes (broke read).
* 971210 Disable board on initialisation in case board already ticking.
* 971222 Changed open/close for temperature handling
* Michael Meskes <meskes@debian.org>.
* 980112 Used minor numbers from include/linux/miscdevice.h
* 990403 Clear reset status after reading control status register in
* pcwd_showprevstate(). [Marc Boucher <marc@mbsi.ca>]
* 971210 Disable board on initialisation in case board already ticking.
* 971222 Changed open/close for temperature handling
* Michael Meskes <meskes@debian.org>.
* 980112 Used minor numbers from include/linux/miscdevice.h
* 990403 Clear reset status after reading control status register in
* pcwd_showprevstate(). [Marc Boucher <marc@mbsi.ca>]
* 990605 Made changes to code to support Firmware 1.22a, added
* fairly useless proc entry.
* 990610 removed said useless proc code for the merge <alan>
* 000403 Removed last traces of proc code. <davej>
* 011214 Added nowayout module option to override
* CONFIG_WATCHDOG_NOWAYOUT <Matt_Domsch@dell.com>
* Added timeout module option to override default
* Added timeout module option to override default
*/
/*
@ -76,8 +76,7 @@
#define WATCHDOG_DRIVER_NAME "ISA-PC Watchdog"
#define WATCHDOG_NAME "pcwd"
#define PFX WATCHDOG_NAME ": "
#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION " (" WATCHDOG_DATE ")\n"
#define WD_VER WATCHDOG_VERSION " (" WATCHDOG_DATE ")"
#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION "\n"
/*
* It should be noted that PCWD_REVISION_B was removed because A and B
@ -200,7 +199,9 @@ MODULE_PARM_DESC(debug,
#define WATCHDOG_HEARTBEAT 0
static int heartbeat = WATCHDOG_HEARTBEAT;
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (2 <= heartbeat <= 7200 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. "
"(2 <= heartbeat <= 7200 or 0=delay-time from dip-switches, default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
@ -239,7 +240,8 @@ static int send_isa_command(int cmd)
}
if (debug >= DEBUG)
printk(KERN_DEBUG PFX "received following data for cmd=0x%02x: port0=0x%02x last_port0=0x%02x\n",
printk(KERN_DEBUG PFX "received following data for "
"cmd=0x%02x: port0=0x%02x last_port0=0x%02x\n",
cmd, port0, last_port0);
return port0;
@ -339,10 +341,12 @@ static void pcwd_show_card_info(void)
pcwd_private.io_addr);
else if (pcwd_private.revision == PCWD_REVISION_C) {
pcwd_get_firmware();
printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n",
printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port "
"0x%04x (Firmware version: %s)\n",
pcwd_private.io_addr, pcwd_private.fw_ver_str);
option_switches = pcwd_get_option_switches();
printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
printk(KERN_INFO PFX "Option switches (0x%02x): "
"Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));
@ -358,7 +362,8 @@ static void pcwd_show_card_info(void)
printk(KERN_INFO PFX "Temperature Option Detected\n");
if (pcwd_private.boot_status & WDIOF_CARDRESET)
printk(KERN_INFO PFX "Previous reboot was caused by the card\n");
printk(KERN_INFO PFX
"Previous reboot was caused by the card\n");
if (pcwd_private.boot_status & WDIOF_OVERHEAT) {
printk(KERN_EMERG PFX
@ -871,7 +876,7 @@ static int __devinit pcwd_isa_probe(struct device *dev, unsigned int id)
cards_found++;
if (cards_found == 1)
printk(KERN_INFO PFX "v%s Ken Hollis (kenji@bitgate.com)\n",
WD_VER);
WATCHDOG_VERSION);
if (cards_found > 1) {
printk(KERN_ERR PFX "This driver only supports 1 device\n");
@ -1026,7 +1031,8 @@ static void __exit pcwd_cleanup_module(void)
module_init(pcwd_init_module);
module_exit(pcwd_cleanup_module);
MODULE_AUTHOR("Ken Hollis <kenji@bitgate.com>, Wim Van Sebroeck <wim@iguana.be>");
MODULE_AUTHOR("Ken Hollis <kenji@bitgate.com>, "
"Wim Van Sebroeck <wim@iguana.be>");
MODULE_DESCRIPTION("Berkshire ISA-PC Watchdog driver");
MODULE_VERSION(WATCHDOG_VERSION);
MODULE_LICENSE("GPL");

108
drivers/watchdog/pcwd_pci.c
View File

@ -24,7 +24,8 @@
* A bells and whistles driver is available from:
* http://www.kernel.org/pub/linux/kernel/people/wim/pcwd/pcwd_pci/
*
* More info available at http://www.berkprod.com/ or http://www.pcwatchdog.com/
* More info available at
* http://www.berkprod.com/ or http://www.pcwatchdog.com/
*/
/*
@ -51,11 +52,10 @@
/* Module and version information */
#define WATCHDOG_VERSION "1.03"
#define WATCHDOG_DATE "21 Jan 2007"
#define WATCHDOG_DRIVER_NAME "PCI-PC Watchdog"
#define WATCHDOG_NAME "pcwd_pci"
#define PFX WATCHDOG_NAME ": "
#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION " (" WATCHDOG_DATE ")\n"
#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION "\n"
/* Stuff for the PCI ID's */
#ifndef PCI_VENDOR_ID_QUICKLOGIC
@ -76,7 +76,8 @@
#define WD_PCI_TTRP 0x04 /* Temperature Trip status */
#define WD_PCI_RL2A 0x08 /* Relay 2 Active */
#define WD_PCI_RL1A 0x10 /* Relay 1 Active */
#define WD_PCI_R2DS 0x40 /* Relay 2 Disable Temperature-trip/reset */
#define WD_PCI_R2DS 0x40 /* Relay 2 Disable Temperature-trip /
reset */
#define WD_PCI_RLY2 0x80 /* Activate Relay 2 on the board */
/* Port 2 : Control Status #2 */
#define WD_PCI_WDIS 0x10 /* Watchdog Disable */
@ -114,12 +115,18 @@ static int cards_found;
static int temp_panic;
static unsigned long is_active;
static char expect_release;
static struct { /* this is private data for each PCI-PC watchdog card */
int supports_temp; /* Wether or not the card has a temperature device */
int boot_status; /* The card's boot status */
unsigned long io_addr; /* The cards I/O address */
spinlock_t io_lock; /* the lock for io operations */
struct pci_dev *pdev; /* the PCI-device */
/* this is private data for each PCI-PC watchdog card */
static struct {
/* Wether or not the card has a temperature device */
int supports_temp;
/* The card's boot status */
int boot_status;
/* The cards I/O address */
unsigned long io_addr;
/* the lock for io operations */
spinlock_t io_lock;
/* the PCI-device */
struct pci_dev *pdev;
} pcipcwd_private;
/* module parameters */
@ -130,14 +137,18 @@ static int debug = QUIET;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level: 0=Quiet, 1=Verbose, 2=Debug (default=0)");
#define WATCHDOG_HEARTBEAT 0 /* default heartbeat = delay-time from dip-switches */
#define WATCHDOG_HEARTBEAT 0 /* default heartbeat =
delay-time from dip-switches */
static int heartbeat = WATCHDOG_HEARTBEAT;
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. "
"(0<heartbeat<65536 or 0=delay-time from dip-switches, default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
/*
* Internal functions
@ -148,8 +159,8 @@ static int send_command(int cmd, int *msb, int *lsb)
int got_response, count;
if (debug >= DEBUG)
printk(KERN_DEBUG PFX "sending following data cmd=0x%02x msb=0x%02x lsb=0x%02x\n",
cmd, *msb, *lsb);
printk(KERN_DEBUG PFX "sending following data "
"cmd=0x%02x msb=0x%02x lsb=0x%02x\n", cmd, *msb, *lsb);
spin_lock(&pcipcwd_private.io_lock);
/* If a command requires data it should be written first.
@ -166,17 +177,20 @@ static int send_command(int cmd, int *msb, int *lsb)
* the WRSP bit in port 2 and give it a max. timeout of
* PCI_COMMAND_TIMEOUT to process */
got_response = inb_p(pcipcwd_private.io_addr + 2) & WD_PCI_WRSP;
for (count = 0; (count < PCI_COMMAND_TIMEOUT) && (!got_response); count++) {
for (count = 0; (count < PCI_COMMAND_TIMEOUT) && (!got_response);
count++) {
mdelay(1);
got_response = inb_p(pcipcwd_private.io_addr + 2) & WD_PCI_WRSP;
}
if (debug >= DEBUG) {
if (got_response) {
printk(KERN_DEBUG PFX "time to process command was: %d ms\n",
printk(KERN_DEBUG PFX
"time to process command was: %d ms\n",
count);
} else {
printk(KERN_DEBUG PFX "card did not respond on command!\n");
printk(KERN_DEBUG PFX
"card did not respond on command!\n");
}
}
@ -189,7 +203,8 @@ static int send_command(int cmd, int *msb, int *lsb)
inb_p(pcipcwd_private.io_addr + 6);
if (debug >= DEBUG)
printk(KERN_DEBUG PFX "received following data for cmd=0x%02x: msb=0x%02x lsb=0x%02x\n",
printk(KERN_DEBUG PFX "received following data for "
"cmd=0x%02x: msb=0x%02x lsb=0x%02x\n",
cmd, *msb, *lsb);
}
@ -218,7 +233,8 @@ static void pcipcwd_show_card_info(void)
char fw_ver_str[20]; /* The cards firmware version */
int option_switches;
got_fw_rev = send_command(CMD_GET_FIRMWARE_VERSION, &fw_rev_major, &fw_rev_minor);
got_fw_rev = send_command(CMD_GET_FIRMWARE_VERSION, &fw_rev_major,
&fw_rev_minor);
if (got_fw_rev)
sprintf(fw_ver_str, "%u.%02u", fw_rev_major, fw_rev_minor);
else
@ -227,23 +243,27 @@ static void pcipcwd_show_card_info(void)
/* Get switch settings */
option_switches = pcipcwd_get_option_switches();
printk(KERN_INFO PFX "Found card at port 0x%04x (Firmware: %s) %s temp option\n",
printk(KERN_INFO PFX "Found card at port "
"0x%04x (Firmware: %s) %s temp option\n",
(int) pcipcwd_private.io_addr, fw_ver_str,
(pcipcwd_private.supports_temp ? "with" : "without"));
printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
printk(KERN_INFO PFX "Option switches (0x%02x): "
"Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));
if (pcipcwd_private.boot_status & WDIOF_CARDRESET)
printk(KERN_INFO PFX "Previous reset was caused by the Watchdog card\n");
printk(KERN_INFO PFX
"Previous reset was caused by the Watchdog card\n");
if (pcipcwd_private.boot_status & WDIOF_OVERHEAT)
printk(KERN_INFO PFX "Card sensed a CPU Overheat\n");
if (pcipcwd_private.boot_status == 0)
printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n");
printk(KERN_INFO PFX
"No previous trip detected - Cold boot or reset\n");
}
static int pcipcwd_start(void)
@ -283,7 +303,8 @@ static int pcipcwd_stop(void)
spin_unlock(&pcipcwd_private.io_lock);
if (!(stat_reg & WD_PCI_WDIS)) {
printk(KERN_ERR PFX "Card did not acknowledge disable attempt\n");
printk(KERN_ERR PFX
"Card did not acknowledge disable attempt\n");
return -1;
}
@ -364,7 +385,8 @@ static int pcipcwd_clear_status(void)
}
/* clear trip status & LED and keep mode of relay 2 */
outb_p((control_status & WD_PCI_R2DS) | WD_PCI_WTRP, pcipcwd_private.io_addr + 1);
outb_p((control_status & WD_PCI_R2DS) | WD_PCI_WTRP,
pcipcwd_private.io_addr + 1);
/* clear reset counter */
msb = 0;
@ -437,7 +459,8 @@ static ssize_t pcipcwd_write(struct file *file, const char __user *data,
* five months ago... */
expect_release = 0;
/* scan to see whether or not we got the magic character */
/* scan to see whether or not we got the
* magic character */
for (i = 0; i != len; i++) {
char c;
if (get_user(c, data + i))
@ -531,7 +554,7 @@ static long pcipcwd_ioctl(struct file *file, unsigned int cmd,
return -EFAULT;
if (pcipcwd_set_heartbeat(new_heartbeat))
return -EINVAL;
return -EINVAL;
pcipcwd_keepalive();
/* Fall */
@ -560,7 +583,8 @@ static int pcipcwd_open(struct inode *inode, struct file *file)
/* /dev/watchdog can only be opened once */
if (test_and_set_bit(0, &is_active)) {
if (debug >= VERBOSE)
printk(KERN_ERR PFX "Attempt to open already opened device.\n");
printk(KERN_ERR PFX
"Attempt to open already opened device.\n");
return -EBUSY;
}
@ -578,7 +602,8 @@ static int pcipcwd_release(struct inode *inode, struct file *file)
if (expect_release == 42) {
pcipcwd_stop();
} else {
printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n");
printk(KERN_CRIT PFX
"Unexpected close, not stopping watchdog!\n");
pcipcwd_keepalive();
}
expect_release = 0;
@ -621,7 +646,8 @@ static int pcipcwd_temp_release(struct inode *inode, struct file *file)
* Notify system
*/
static int pcipcwd_notify_sys(struct notifier_block *this, unsigned long code, void *unused)
static int pcipcwd_notify_sys(struct notifier_block *this, unsigned long code,
void *unused)
{
if (code == SYS_DOWN || code == SYS_HALT)
pcipcwd_stop(); /* Turn the WDT off */
@ -722,34 +748,38 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev,
/* If heartbeat = 0 then we use the heartbeat from the dip-switches */
if (heartbeat == 0)
heartbeat = heartbeat_tbl[(pcipcwd_get_option_switches() & 0x07)];
heartbeat =
heartbeat_tbl[(pcipcwd_get_option_switches() & 0x07)];
/* Check that the heartbeat value is within it's range ; if not reset to the default */
/* Check that the heartbeat value is within it's range ;
* if not reset to the default */
if (pcipcwd_set_heartbeat(heartbeat)) {
pcipcwd_set_heartbeat(WATCHDOG_HEARTBEAT);
printk(KERN_INFO PFX "heartbeat value must be 0<heartbeat<65536, using %d\n",
printk(KERN_INFO PFX
"heartbeat value must be 0<heartbeat<65536, using %d\n",
WATCHDOG_HEARTBEAT);
}
ret = register_reboot_notifier(&pcipcwd_notifier);
if (ret != 0) {
printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
ret);
printk(KERN_ERR PFX
"cannot register reboot notifier (err=%d)\n", ret);
goto err_out_release_region;
}
if (pcipcwd_private.supports_temp) {
ret = misc_register(&pcipcwd_temp_miscdev);
if (ret != 0) {
printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
TEMP_MINOR, ret);
printk(KERN_ERR PFX "cannot register miscdev on "
"minor=%d (err=%d)\n", TEMP_MINOR, ret);
goto err_out_unregister_reboot;
}
}
ret = misc_register(&pcipcwd_miscdev);
if (ret != 0) {
printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
printk(KERN_ERR PFX
"cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, ret);
goto err_out_misc_deregister;
}

167
drivers/watchdog/pcwd_usb.c
View File

@ -51,12 +51,11 @@
/* Use our own dbg macro */
#undef dbg
#define dbg(format, arg...) do { if (debug) printk(KERN_DEBUG PFX format "\n" , ## arg); } while (0)
#define dbg(format, arg...) \
do { if (debug) printk(KERN_DEBUG PFX format "\n" , ## arg); } while (0)
/* Module and Version Information */
#define DRIVER_VERSION "1.02"
#define DRIVER_DATE "21 Jan 2007"
#define DRIVER_AUTHOR "Wim Van Sebroeck <wim@iguana.be>"
#define DRIVER_DESC "Berkshire USB-PC Watchdog driver"
#define DRIVER_LICENSE "GPL"
@ -73,14 +72,18 @@ MODULE_ALIAS_MISCDEV(TEMP_MINOR);
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug enabled or not");
#define WATCHDOG_HEARTBEAT 0 /* default heartbeat = delay-time from dip-switches */
#define WATCHDOG_HEARTBEAT 0 /* default heartbeat =
delay-time from dip-switches */
static int heartbeat = WATCHDOG_HEARTBEAT;
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. "
"(0<heartbeat<65536 or 0=delay-time from dip-switches, default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
/* The vendor and product id's for the USB-PC Watchdog card */
#define USB_PCWD_VENDOR_ID 0x0c98
@ -91,20 +94,21 @@ static struct usb_device_id usb_pcwd_table[] = {
{ USB_DEVICE(USB_PCWD_VENDOR_ID, USB_PCWD_PRODUCT_ID) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, usb_pcwd_table);
MODULE_DEVICE_TABLE(usb, usb_pcwd_table);
/* according to documentation max. time to process a command for the USB
* watchdog card is 100 or 200 ms, so we give it 250 ms to do it's job */
#define USB_COMMAND_TIMEOUT 250
/* Watchdog's internal commands */
#define CMD_READ_TEMP 0x02 /* Read Temperature; Re-trigger Watchdog */
#define CMD_READ_TEMP 0x02 /* Read Temperature;
Re-trigger Watchdog */
#define CMD_TRIGGER CMD_READ_TEMP
#define CMD_GET_STATUS 0x04 /* Get Status Information */
#define CMD_GET_FIRMWARE_VERSION 0x08 /* Get Firmware Version */
#define CMD_GET_DIP_SWITCH_SETTINGS 0x0c /* Get Dip Switch Settings */
#define CMD_READ_WATCHDOG_TIMEOUT 0x18 /* Read Current Watchdog Time */
#define CMD_WRITE_WATCHDOG_TIMEOUT 0x19 /* Write Current Watchdog Time */
#define CMD_WRITE_WATCHDOG_TIMEOUT 0x19 /* Write Current WatchdogTime */
#define CMD_ENABLE_WATCHDOG 0x30 /* Enable / Disable Watchdog */
#define CMD_DISABLE_WATCHDOG CMD_ENABLE_WATCHDOG
@ -129,23 +133,36 @@ static char expect_release;
/* Structure to hold all of our device specific stuff */
struct usb_pcwd_private {
struct usb_device *udev; /* save off the usb device pointer */
struct usb_interface *interface; /* the interface for this device */
/* save off the usb device pointer */
struct usb_device *udev;
/* the interface for this device */
struct usb_interface *interface;
unsigned int interface_number; /* the interface number used for cmd's */
/* the interface number used for cmd's */
unsigned int interface_number;
unsigned char *intr_buffer; /* the buffer to intr data */
dma_addr_t intr_dma; /* the dma address for the intr buffer */
size_t intr_size; /* the size of the intr buffer */
struct urb *intr_urb; /* the urb used for the intr pipe */
/* the buffer to intr data */
unsigned char *intr_buffer;
/* the dma address for the intr buffer */
dma_addr_t intr_dma;
/* the size of the intr buffer */
size_t intr_size;
/* the urb used for the intr pipe */
struct urb *intr_urb;
unsigned char cmd_command; /* The command that is reported back */
unsigned char cmd_data_msb; /* The data MSB that is reported back */
unsigned char cmd_data_lsb; /* The data LSB that is reported back */
atomic_t cmd_received; /* true if we received a report after a command */
/* The command that is reported back */
unsigned char cmd_command;
/* The data MSB that is reported back */
unsigned char cmd_data_msb;
/* The data LSB that is reported back */
unsigned char cmd_data_lsb;
/* true if we received a report after a command */
atomic_t cmd_received;
int exists; /* Wether or not the device exists */
struct mutex mtx; /* locks this structure */
/* Wether or not the device exists */
int exists;
/* locks this structure */
struct mutex mtx;
};
static struct usb_pcwd_private *usb_pcwd_device;
@ -153,7 +170,8 @@ static struct usb_pcwd_private *usb_pcwd_device;
static DEFINE_MUTEX(disconnect_mutex);
/* local function prototypes */
static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_device_id *id);
static int usb_pcwd_probe(struct usb_interface *interface,
const struct usb_device_id *id);
static void usb_pcwd_disconnect(struct usb_interface *interface);
/* usb specific object needed to register this driver with the usb subsystem */
@ -167,7 +185,8 @@ static struct usb_driver usb_pcwd_driver = {
static void usb_pcwd_intr_done(struct urb *urb)
{
struct usb_pcwd_private *usb_pcwd = (struct usb_pcwd_private *)urb->context;
struct usb_pcwd_private *usb_pcwd =
(struct usb_pcwd_private *)urb->context;
unsigned char *data = usb_pcwd->intr_buffer;
int retval;
@ -178,11 +197,13 @@ static void usb_pcwd_intr_done(struct urb *urb)
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d", __func__, urb->status);
dbg("%s - urb shutting down with status: %d", __func__,
urb->status);
return;
/* -EPIPE: should clear the halt */
default: /* error */
dbg("%s - nonzero urb status received: %d", __func__, urb->status);
dbg("%s - nonzero urb status received: %d", __func__,
urb->status);
goto resubmit;
}
@ -199,22 +220,23 @@ static void usb_pcwd_intr_done(struct urb *urb)
resubmit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
printk(KERN_ERR PFX "can't resubmit intr, usb_submit_urb failed with result %d\n",
retval);
printk(KERN_ERR PFX "can't resubmit intr, "
"usb_submit_urb failed with result %d\n", retval);
}
static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, unsigned char cmd,
unsigned char *msb, unsigned char *lsb)
static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd,
unsigned char cmd, unsigned char *msb, unsigned char *lsb)
{
int got_response, count;
unsigned char buf[6];
/* We will not send any commands if the USB PCWD device does not exist */
/* We will not send any commands if the USB PCWD device does
* not exist */
if ((!usb_pcwd) || (!usb_pcwd->exists))
return -1;
/* The USB PC Watchdog uses a 6 byte report format. The board currently uses
* only 3 of the six bytes of the report. */
/* The USB PC Watchdog uses a 6 byte report format.
* The board currently uses only 3 of the six bytes of the report. */
buf[0] = cmd; /* Byte 0 = CMD */
buf[1] = *msb; /* Byte 1 = Data MSB */
buf[2] = *lsb; /* Byte 2 = Data LSB */
@ -229,12 +251,14 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, unsigned cha
HID_REQ_SET_REPORT, HID_DT_REPORT,
0x0200, usb_pcwd->interface_number, buf, sizeof(buf),
USB_COMMAND_TIMEOUT) != sizeof(buf)) {
dbg("usb_pcwd_send_command: error in usb_control_msg for cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb);
dbg("usb_pcwd_send_command: error in usb_control_msg for "
"cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb);
}
/* wait till the usb card processed the command,
* with a max. timeout of USB_COMMAND_TIMEOUT */
got_response = 0;
for (count = 0; (count < USB_COMMAND_TIMEOUT) && (!got_response); count++) {
for (count = 0; (count < USB_COMMAND_TIMEOUT) && (!got_response);
count++) {
mdelay(1);
if (atomic_read(&usb_pcwd->cmd_received))
got_response = 1;
@ -256,10 +280,12 @@ static int usb_pcwd_start(struct usb_pcwd_private *usb_pcwd)
int retval;
/* Enable Watchdog */
retval = usb_pcwd_send_command(usb_pcwd, CMD_ENABLE_WATCHDOG, &msb, &lsb);
retval = usb_pcwd_send_command(usb_pcwd, CMD_ENABLE_WATCHDOG,
&msb, &lsb);
if ((retval == 0) || (lsb == 0)) {
printk(KERN_ERR PFX "Card did not acknowledge enable attempt\n");
printk(KERN_ERR PFX
"Card did not acknowledge enable attempt\n");
return -1;
}
@ -273,10 +299,12 @@ static int usb_pcwd_stop(struct usb_pcwd_private *usb_pcwd)
int retval;
/* Disable Watchdog */
retval = usb_pcwd_send_command(usb_pcwd, CMD_DISABLE_WATCHDOG, &msb, &lsb);
retval = usb_pcwd_send_command(usb_pcwd, CMD_DISABLE_WATCHDOG,
&msb, &lsb);
if ((retval == 0) || (lsb != 0)) {
printk(KERN_ERR PFX "Card did not acknowledge disable attempt\n");
printk(KERN_ERR PFX
"Card did not acknowledge disable attempt\n");
return -1;
}
@ -308,7 +336,8 @@ static int usb_pcwd_set_heartbeat(struct usb_pcwd_private *usb_pcwd, int t)
return 0;
}
static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, int *temperature)
static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd,
int *temperature)
{
unsigned char msb, lsb;
@ -323,7 +352,8 @@ static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, int *temp
return 0;
}
static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd, int *time_left)
static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd,
int *time_left)
{
unsigned char msb, lsb;
@ -341,7 +371,7 @@ static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd, int *time_le
*/
static ssize_t usb_pcwd_write(struct file *file, const char __user *data,
size_t len, loff_t *ppos)
size_t len, loff_t *ppos)
{
/* See if we got the magic character 'V' and reload the timer */
if (len) {
@ -352,7 +382,8 @@ static ssize_t usb_pcwd_write(struct file *file, const char __user *data,
* five months ago... */
expect_release = 0;
/* scan to see whether or not we got the magic character */
/* scan to see whether or not we got the
* magic character */
for (i = 0; i != len; i++) {
char c;
if (get_user(c, data + i))
@ -431,7 +462,7 @@ static long usb_pcwd_ioctl(struct file *file, unsigned int cmd,
return -EFAULT;
if (usb_pcwd_set_heartbeat(usb_pcwd_device, new_heartbeat))
return -EINVAL;
return -EINVAL;
usb_pcwd_keepalive(usb_pcwd_device);
/* Fall */
@ -475,7 +506,8 @@ static int usb_pcwd_release(struct inode *inode, struct file *file)
if (expect_release == 42) {
usb_pcwd_stop(usb_pcwd_device);
} else {
printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n");
printk(KERN_CRIT PFX
"Unexpected close, not stopping watchdog!\n");
usb_pcwd_keepalive(usb_pcwd_device);
}
expect_release = 0;
@ -515,7 +547,8 @@ static int usb_pcwd_temperature_release(struct inode *inode, struct file *file)
* Notify system
*/
static int usb_pcwd_notify_sys(struct notifier_block *this, unsigned long code, void *unused)
static int usb_pcwd_notify_sys(struct notifier_block *this, unsigned long code,
void *unused)
{
if (code == SYS_DOWN || code == SYS_HALT)
usb_pcwd_stop(usb_pcwd_device); /* Turn the WDT off */
@ -578,7 +611,8 @@ static inline void usb_pcwd_delete(struct usb_pcwd_private *usb_pcwd)
* Called by the usb core when a new device is connected that it thinks
* this driver might be interested in.
*/
static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_device_id *id)
static int usb_pcwd_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(interface);
struct usb_host_interface *iface_desc;
@ -602,16 +636,15 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi
/* check out that we have a HID device */
if (!(iface_desc->desc.bInterfaceClass == USB_CLASS_HID)) {
printk(KERN_ERR PFX "The device isn't a Human Interface Device\n");
printk(KERN_ERR PFX
"The device isn't a Human Interface Device\n");
return -ENODEV;
}
/* check out the endpoint: it has to be Interrupt & IN */
endpoint = &iface_desc->endpoint[0].desc;
if (!((endpoint->bEndpointAddress & USB_DIR_IN) &&
((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
== USB_ENDPOINT_XFER_INT))) {
if (!usb_endpoint_is_int_in(endpoint)) {
/* we didn't find a Interrupt endpoint with direction IN */
printk(KERN_ERR PFX "Couldn't find an INTR & IN endpoint\n");
return -ENODEV;
@ -634,10 +667,12 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi
usb_pcwd->udev = udev;
usb_pcwd->interface = interface;
usb_pcwd->interface_number = iface_desc->desc.bInterfaceNumber;
usb_pcwd->intr_size = (le16_to_cpu(endpoint->wMaxPacketSize) > 8 ? le16_to_cpu(endpoint->wMaxPacketSize) : 8);
usb_pcwd->intr_size = (le16_to_cpu(endpoint->wMaxPacketSize) > 8 ?
le16_to_cpu(endpoint->wMaxPacketSize) : 8);
/* set up the memory buffer's */
usb_pcwd->intr_buffer = usb_buffer_alloc(udev, usb_pcwd->intr_size, GFP_ATOMIC, &usb_pcwd->intr_dma);
usb_pcwd->intr_buffer = usb_buffer_alloc(udev, usb_pcwd->intr_size,
GFP_ATOMIC, &usb_pcwd->intr_dma);
if (!usb_pcwd->intr_buffer) {
printk(KERN_ERR PFX "Out of memory\n");
goto error;
@ -671,7 +706,8 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi
usb_pcwd_stop(usb_pcwd);
/* Get the Firmware Version */
got_fw_rev = usb_pcwd_send_command(usb_pcwd, CMD_GET_FIRMWARE_VERSION, &fw_rev_major, &fw_rev_minor);
got_fw_rev = usb_pcwd_send_command(usb_pcwd, CMD_GET_FIRMWARE_VERSION,
&fw_rev_major, &fw_rev_minor);
if (got_fw_rev)
sprintf(fw_ver_str, "%u.%02u", fw_rev_major, fw_rev_minor);
else
@ -681,9 +717,11 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi
fw_ver_str);
/* Get switch settings */
usb_pcwd_send_command(usb_pcwd, CMD_GET_DIP_SWITCH_SETTINGS, &dummy, &option_switches);
usb_pcwd_send_command(usb_pcwd, CMD_GET_DIP_SWITCH_SETTINGS, &dummy,
&option_switches);
printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
printk(KERN_INFO PFX "Option switches (0x%02x): "
"Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));
@ -692,30 +730,35 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi
if (heartbeat == 0)
heartbeat = heartbeat_tbl[(option_switches & 0x07)];
/* Check that the heartbeat value is within it's range ; if not reset to the default */
/* Check that the heartbeat value is within it's range ;
* if not reset to the default */
if (usb_pcwd_set_heartbeat(usb_pcwd, heartbeat)) {
usb_pcwd_set_heartbeat(usb_pcwd, WATCHDOG_HEARTBEAT);
printk(KERN_INFO PFX "heartbeat value must be 0<heartbeat<65536, using %d\n",
printk(KERN_INFO PFX
"heartbeat value must be 0<heartbeat<65536, using %d\n",
WATCHDOG_HEARTBEAT);
}
retval = register_reboot_notifier(&usb_pcwd_notifier);
if (retval != 0) {
printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
printk(KERN_ERR PFX
"cannot register reboot notifier (err=%d)\n",
retval);
goto error;
}
retval = misc_register(&usb_pcwd_temperature_miscdev);
if (retval != 0) {
printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
printk(KERN_ERR PFX
"cannot register miscdev on minor=%d (err=%d)\n",
TEMP_MINOR, retval);
goto err_out_unregister_reboot;
}
retval = misc_register(&usb_pcwd_miscdev);
if (retval != 0) {
printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
printk(KERN_ERR PFX
"cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, retval);
goto err_out_misc_deregister;
}
@ -801,7 +844,7 @@ static int __init usb_pcwd_init(void)
return result;
}
printk(KERN_INFO PFX DRIVER_DESC " v" DRIVER_VERSION " (" DRIVER_DATE ")\n");
printk(KERN_INFO PFX DRIVER_DESC " v" DRIVER_VERSION "\n");
return 0;
}

18
drivers/watchdog/pnx4008_wdt.c
View File

@ -54,22 +54,22 @@
/* WDTIM_CTRL bit definitions */
#define COUNT_ENAB 1
#define RESET_COUNT (1<<1)
#define DEBUG_EN (1<<2)
#define RESET_COUNT (1 << 1)
#define DEBUG_EN (1 << 2)
/* WDTIM_MCTRL bit definitions */
#define MR0_INT 1
#undef RESET_COUNT0
#define RESET_COUNT0 (1<<2)
#define STOP_COUNT0 (1<<2)
#define M_RES1 (1<<3)
#define M_RES2 (1<<4)
#define RESFRC1 (1<<5)
#define RESFRC2 (1<<6)
#define RESET_COUNT0 (1 << 2)
#define STOP_COUNT0 (1 << 2)
#define M_RES1 (1 << 3)
#define M_RES2 (1 << 4)
#define RESFRC1 (1 << 5)
#define RESFRC2 (1 << 6)
/* WDTIM_EMR bit definitions */
#define EXT_MATCH0 1
#define MATCH_OUTPUT_HIGH (2<<4) /*a MATCH_CTRL setting */
#define MATCH_OUTPUT_HIGH (2 << 4) /*a MATCH_CTRL setting */
/* WDTIM_RES bit definitions */
#define WDOG_RESET 1 /* read only */

149
drivers/watchdog/rc32434_wdt.c
View File

@ -17,27 +17,29 @@
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/reboot.h>
#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/uaccess.h>
#include <linux/module.h> /* For module specific items */
#include <linux/moduleparam.h> /* For new moduleparam's */
#include <linux/types.h> /* For standard types (like size_t) */
#include <linux/errno.h> /* For the -ENODEV/... values */
#include <linux/kernel.h> /* For printk/panic/... */
#include <linux/fs.h> /* For file operations */
#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV
(WATCHDOG_MINOR) */
#include <linux/watchdog.h> /* For the watchdog specific items */
#include <linux/init.h> /* For __init/__exit/... */
#include <linux/platform_device.h> /* For platform_driver framework */
#include <linux/spinlock.h> /* For spin_lock/spin_unlock/... */
#include <linux/uaccess.h> /* For copy_to_user/put_user/... */
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/mach-rc32434/integ.h>
#include <asm/mach-rc32434/integ.h> /* For the Watchdog registers */
#define VERSION "0.4"
#define PFX KBUILD_MODNAME ": "
#define VERSION "1.0"
static struct {
unsigned long inuse;
spinlock_t io_lock;
} rc32434_wdt_device;
static struct integ __iomem *wdt_reg;
@ -58,6 +60,9 @@ extern unsigned int idt_cpu_freq;
#define WATCHDOG_TIMEOUT 20
static int timeout = WATCHDOG_TIMEOUT;
module_param(timeout, int, 0);
MODULE_PARM_DESC(timeout, "Watchdog timeout value, in seconds (default="
WATCHDOG_TIMEOUT ")");
static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
@ -68,10 +73,29 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
#define SET_BITS(addr, or, nand) \
writel((readl(&addr) | or) & ~nand, &addr)
static int rc32434_wdt_set(int new_timeout)
{
int max_to = WTCOMP2SEC((u32)-1);
if (new_timeout < 0 || new_timeout > max_to) {
printk(KERN_ERR PFX "timeout value must be between 0 and %d",
max_to);
return -EINVAL;
}
timeout = new_timeout;
spin_lock(&rc32434_wdt_device.io_lock);
writel(SEC2WTCOMP(timeout), &wdt_reg->wtcompare);
spin_unlock(&rc32434_wdt_device.io_lock);
return 0;
}
static void rc32434_wdt_start(void)
{
u32 or, nand;
spin_lock(&rc32434_wdt_device.io_lock);
/* zero the counter before enabling */
writel(0, &wdt_reg->wtcount);
@ -85,38 +109,35 @@ static void rc32434_wdt_start(void)
SET_BITS(wdt_reg->errcs, or, nand);
/* set the timeout (either default or based on module param) */
rc32434_wdt_set(timeout);
/* reset WTC timeout bit and enable WDT */
nand = 1 << RC32434_WTC_TO;
or = 1 << RC32434_WTC_EN;
SET_BITS(wdt_reg->wtc, or, nand);
spin_unlock(&rc32434_wdt_device.io_lock);
printk(KERN_INFO PFX "Started watchdog timer.\n");
}
static void rc32434_wdt_stop(void)
{
spin_lock(&rc32434_wdt_device.io_lock);
/* Disable WDT */
SET_BITS(wdt_reg->wtc, 0, 1 << RC32434_WTC_EN);
}
static int rc32434_wdt_set(int new_timeout)
{
int max_to = WTCOMP2SEC((u32)-1);
if (new_timeout < 0 || new_timeout > max_to) {
printk(KERN_ERR KBUILD_MODNAME
": timeout value must be between 0 and %d",
max_to);
return -EINVAL;
}
timeout = new_timeout;
writel(SEC2WTCOMP(timeout), &wdt_reg->wtcompare);
return 0;
spin_unlock(&rc32434_wdt_device.io_lock);
printk(KERN_INFO PFX "Stopped watchdog timer.\n");
}
static void rc32434_wdt_ping(void)
{
spin_lock(&rc32434_wdt_device.io_lock);
writel(0, &wdt_reg->wtcount);
spin_unlock(&rc32434_wdt_device.io_lock);
}
static int rc32434_wdt_open(struct inode *inode, struct file *file)
@ -137,11 +158,10 @@ static int rc32434_wdt_release(struct inode *inode, struct file *file)
{
if (expect_close == 42) {
rc32434_wdt_stop();
printk(KERN_INFO KBUILD_MODNAME ": disabling watchdog timer\n");
module_put(THIS_MODULE);
} else {
printk(KERN_CRIT KBUILD_MODNAME
": device closed unexpectedly. WDT will not stop !\n");
printk(KERN_CRIT PFX
"device closed unexpectedly. WDT will not stop!\n");
rc32434_wdt_ping();
}
clear_bit(0, &rc32434_wdt_device.inuse);
@ -185,8 +205,9 @@ static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
.identity = "RC32434_WDT Watchdog",
};
switch (cmd) {
case WDIOC_KEEPALIVE:
rc32434_wdt_ping();
case WDIOC_GETSUPPORT:
if (copy_to_user(argp, &ident, sizeof(ident)))
return -EFAULT;
break;
case WDIOC_GETSTATUS:
case WDIOC_GETBOOTSTATUS:
@ -194,10 +215,6 @@ static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
if (copy_to_user(argp, &value, sizeof(int)))
return -EFAULT;
break;
case WDIOC_GETSUPPORT:
if (copy_to_user(argp, &ident, sizeof(ident)))
return -EFAULT;
break;
case WDIOC_SETOPTIONS:
if (copy_from_user(&value, argp, sizeof(int)))
return -EFAULT;
@ -212,6 +229,9 @@ static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
return -EINVAL;
}
break;
case WDIOC_KEEPALIVE:
rc32434_wdt_ping();
break;
case WDIOC_SETTIMEOUT:
if (copy_from_user(&new_timeout, argp, sizeof(int)))
return -EFAULT;
@ -227,7 +247,7 @@ static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
return 0;
}
static struct file_operations rc32434_wdt_fops = {
static const struct file_operations rc32434_wdt_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = rc32434_wdt_write,
@ -242,8 +262,8 @@ static struct miscdevice rc32434_wdt_miscdev = {
.fops = &rc32434_wdt_fops,
};
static char banner[] __devinitdata = KERN_INFO KBUILD_MODNAME
": Watchdog Timer version " VERSION ", timer margin: %d sec\n";
static char banner[] __devinitdata = KERN_INFO PFX
"Watchdog Timer version " VERSION ", timer margin: %d sec\n";
static int __devinit rc32434_wdt_probe(struct platform_device *pdev)
{
@ -252,22 +272,33 @@ static int __devinit rc32434_wdt_probe(struct platform_device *pdev)
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rb532_wdt_res");
if (!r) {
printk(KERN_ERR KBUILD_MODNAME
"failed to retrieve resources\n");
printk(KERN_ERR PFX "failed to retrieve resources\n");
return -ENODEV;
}
wdt_reg = ioremap_nocache(r->start, r->end - r->start);
if (!wdt_reg) {
printk(KERN_ERR KBUILD_MODNAME
"failed to remap I/O resources\n");
printk(KERN_ERR PFX "failed to remap I/O resources\n");
return -ENXIO;
}
spin_lock_init(&rc32434_wdt_device.io_lock);
/* Make sure the watchdog is not running */
rc32434_wdt_stop();
/* Check that the heartbeat value is within it's range;
* if not reset to the default */
if (rc32434_wdt_set(timeout)) {
rc32434_wdt_set(WATCHDOG_TIMEOUT);
printk(KERN_INFO PFX
"timeout value must be between 0 and %d\n",
WTCOMP2SEC((u32)-1));
}
ret = misc_register(&rc32434_wdt_miscdev);
if (ret < 0) {
printk(KERN_ERR KBUILD_MODNAME
"failed to register watchdog device\n");
printk(KERN_ERR PFX "failed to register watchdog device\n");
goto unmap;
}
@ -287,22 +318,28 @@ static int __devexit rc32434_wdt_remove(struct platform_device *pdev)
return 0;
}
static struct platform_driver rc32434_wdt = {
.probe = rc32434_wdt_probe,
.remove = __devexit_p(rc32434_wdt_remove),
.driver = {
.name = "rc32434_wdt",
static void rc32434_wdt_shutdown(struct platform_device *pdev)
{
rc32434_wdt_stop();
}
static struct platform_driver rc32434_wdt_driver = {
.probe = rc32434_wdt_probe,
.remove = __devexit_p(rc32434_wdt_remove),
.shutdown = rc32434_wdt_shutdown,
.driver = {
.name = "rc32434_wdt",
}
};
static int __init rc32434_wdt_init(void)
{
return platform_driver_register(&rc32434_wdt);
return platform_driver_register(&rc32434_wdt_driver);
}
static void __exit rc32434_wdt_exit(void)
{
platform_driver_unregister(&rc32434_wdt);
platform_driver_unregister(&rc32434_wdt_driver);
}
module_init(rc32434_wdt_init);

23
drivers/watchdog/riowd.c
View File

@ -14,9 +14,8 @@
#include <linux/watchdog.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <linux/io.h>
#include <linux/uaccess.h>
/* RIO uses the NatSemi Super I/O power management logical device
@ -86,8 +85,7 @@ static int riowd_release(struct inode *inode, struct file *filp)
return 0;
}
static int riowd_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
static long riowd_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
static struct watchdog_info info = {
.options = WDIOF_SETTIMEOUT,
@ -147,7 +145,8 @@ static int riowd_ioctl(struct inode *inode, struct file *filp,
return 0;
}
static ssize_t riowd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
static ssize_t riowd_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
struct riowd *p = riowd_device;
@ -160,12 +159,12 @@ static ssize_t riowd_write(struct file *file, const char __user *buf, size_t cou
}
static const struct file_operations riowd_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = riowd_ioctl,
.open = riowd_open,
.write = riowd_write,
.release = riowd_release,
.owner = THIS_MODULE,
.llseek = no_llseek,
.unlocked_ioctl = riowd_ioctl,
.open = riowd_open,
.write = riowd_write,
.release = riowd_release,
};
static struct miscdevice riowd_miscdev = {

6
drivers/watchdog/sa1100_wdt.c
View File

@ -1,8 +1,8 @@
/*
* Watchdog driver for the SA11x0/PXA2xx
*
* (c) Copyright 2000 Oleg Drokin <green@crimea.edu>
* Based on SoftDog driver by Alan Cox <alan@lxorguk.ukuu.org.uk>
* (c) Copyright 2000 Oleg Drokin <green@crimea.edu>
* Based on SoftDog driver by Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -15,7 +15,7 @@
*
* (c) Copyright 2000 Oleg Drokin <green@crimea.edu>
*
* 27/11/2000 Initial release
* 27/11/2000 Initial release
*/
#include <linux/module.h>
#include <linux/moduleparam.h>

2
drivers/watchdog/sbc60xxwdt.c
View File

@ -1,7 +1,7 @@
/*
* 60xx Single Board Computer Watchdog Timer driver for Linux 2.2.x
*
* Based on acquirewdt.c by Alan Cox.
* Based on acquirewdt.c by Alan Cox.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License

12
drivers/watchdog/sbc8360.c
View File

@ -4,12 +4,12 @@
* (c) Copyright 2005 Webcon, Inc.
*
* Based on ib700wdt.c, which is based on advantechwdt.c which is based
* on acquirewdt.c which is based on wdt.c.
* on acquirewdt.c which is based on wdt.c.
*
* (c) Copyright 2001 Charles Howes <chowes@vsol.net>
*
* Based on advantechwdt.c which is based on acquirewdt.c which
* is based on wdt.c.
* Based on advantechwdt.c which is based on acquirewdt.c which
* is based on wdt.c.
*
* (c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
*
@ -30,9 +30,9 @@
*
* (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* Added timeout module option to override default
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* Added timeout module option to override default
*
*/

3
drivers/watchdog/sbc_epx_c3.c
View File

@ -35,7 +35,8 @@ static int epx_c3_alive;
static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
#define EPXC3_WATCHDOG_CTL_REG 0x1ee /* write 1 to enable, 0 to disable */
#define EPXC3_WATCHDOG_PET_REG 0x1ef /* write anything to pet once enabled */

7
drivers/watchdog/sc1200wdt.c
View File

@ -71,7 +71,7 @@
#define UART2_IRQ 0x04 /* Serial1 */
/* 5 -7 are reserved */
static char banner[] __initdata = KERN_INFO PFX SC1200_MODULE_VER;
static char banner[] __initdata = PFX SC1200_MODULE_VER;
static int timeout = 1;
static int io = -1;
static int io_len = 2; /* for non plug and play */
@ -392,7 +392,7 @@ static int __init sc1200wdt_init(void)
{
int ret;
printk("%s\n", banner);
printk(KERN_INFO "%s\n", banner);
#if defined CONFIG_PNP
if (isapnp) {
@ -477,6 +477,7 @@ module_init(sc1200wdt_init);
module_exit(sc1200wdt_exit);
MODULE_AUTHOR("Zwane Mwaikambo <zwane@commfireservices.com>");
MODULE_DESCRIPTION("Driver for National Semiconductor PC87307/PC97307 watchdog component");
MODULE_DESCRIPTION(
"Driver for National Semiconductor PC87307/PC97307 watchdog component");
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);

9
drivers/watchdog/sc520_wdt.c
View File

@ -1,8 +1,8 @@
/*
* AMD Elan SC520 processor Watchdog Timer driver
*
* Based on acquirewdt.c by Alan Cox,
* and sbc60xxwdt.c by Jakob Oestergaard <jakob@unthought.net>
* Based on acquirewdt.c by Alan Cox,
* and sbc60xxwdt.c by Jakob Oestergaard <jakob@unthought.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -11,7 +11,7 @@
*
* The authors do NOT admit liability nor provide warranty for
* any of this software. This material is provided "AS-IS" in
* the hope that it may be useful for others.
* the hope that it may be useful for others.
*
* (c) Copyright 2001 Scott Jennings <linuxdrivers@oro.net>
* 9/27 - 2001 [Initial release]
@ -438,6 +438,7 @@ module_init(sc520_wdt_init);
module_exit(sc520_wdt_unload);
MODULE_AUTHOR("Scott and Bill Jennings");
MODULE_DESCRIPTION("Driver for watchdog timer in AMD \"Elan\" SC520 uProcessor");
MODULE_DESCRIPTION(
"Driver for watchdog timer in AMD \"Elan\" SC520 uProcessor");
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);

30
drivers/watchdog/smsc37b787_wdt.c
View File

@ -2,7 +2,7 @@
* SMsC 37B787 Watchdog Timer driver for Linux 2.6.x.x
*
* Based on acquirewdt.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
* and some other existing drivers
* and some other existing drivers
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -11,7 +11,7 @@
*
* The authors do NOT admit liability nor provide warranty for
* any of this software. This material is provided "AS-IS" in
* the hope that it may be useful for others.
* the hope that it may be useful for others.
*
* (C) Copyright 2003-2006 Sven Anders <anders@anduras.de>
*
@ -22,19 +22,19 @@
*
* Theory of operation:
*
* A Watchdog Timer (WDT) is a hardware circuit that can
* reset the computer system in case of a software fault.
* You probably knew that already.
* A Watchdog Timer (WDT) is a hardware circuit that can
* reset the computer system in case of a software fault.
* You probably knew that already.
*
* Usually a userspace daemon will notify the kernel WDT driver
* via the /dev/watchdog special device file that userspace is
* still alive, at regular intervals. When such a notification
* occurs, the driver will usually tell the hardware watchdog
* that everything is in order, and that the watchdog should wait
* for yet another little while to reset the system.
* If userspace fails (RAM error, kernel bug, whatever), the
* notifications cease to occur, and the hardware watchdog will
* reset the system (causing a reboot) after the timeout occurs.
* Usually a userspace daemon will notify the kernel WDT driver
* via the /dev/watchdog special device file that userspace is
* still alive, at regular intervals. When such a notification
* occurs, the driver will usually tell the hardware watchdog
* that everything is in order, and that the watchdog should wait
* for yet another little while to reset the system.
* If userspace fails (RAM error, kernel bug, whatever), the
* notifications cease to occur, and the hardware watchdog will
* reset the system (causing a reboot) after the timeout occurs.
*
* Create device with:
* mknod /dev/watchdog c 10 130
@ -485,7 +485,7 @@ static long wb_smsc_wdt_ioctl(struct file *file,
case WDIOC_GETTIMEOUT:
new_timeout = timeout;
if (unit == UNIT_MINUTE)
new_timeout *= 60;
new_timeout *= 60;
return put_user(new_timeout, uarg.i);
default:
return -ENOTTY;

5
drivers/watchdog/softdog.c
View File

@ -1,7 +1,8 @@
/*
* SoftDog 0.07: A Software Watchdog Device
*
* (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, All Rights Reserved.
* (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -32,7 +33,7 @@
* Added WDIOC_GETTIMEOUT and WDIOC_SETTIMOUT.
*
* 20020530 Joel Becker <joel.becker@oracle.com>
* Added Matt Domsch's nowayout module option.
* Added Matt Domsch's nowayout module option.
*/
#include <linux/module.h>

3
drivers/watchdog/w83697hf_wdt.c
View File

@ -462,6 +462,7 @@ module_init(wdt_init);
module_exit(wdt_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Marcus Junker <junker@anduras.de>, Samuel Tardieu <sam@rfc1149.net>");
MODULE_AUTHOR("Marcus Junker <junker@anduras.de>, "
"Samuel Tardieu <sam@rfc1149.net>");
MODULE_DESCRIPTION("w83697hf/hg WDT driver");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);

23
drivers/watchdog/w83697ug_wdt.c
View File

@ -2,7 +2,7 @@
* w83697ug/uf WDT driver
*
* (c) Copyright 2008 Flemming Fransen <ff@nrvissing.net>
* reused original code to supoprt w83697ug/uf.
* reused original code to support w83697ug/uf.
*
* Based on w83627hf_wdt.c which is based on advantechwdt.c
* which is based on wdt.c.
@ -79,7 +79,7 @@ MODULE_PARM_DESC(nowayout,
(same as EFER) */
#define WDT_EFDR (WDT_EFIR+1) /* Extended Function Data Register */
static void w83697ug_select_wd_register(void)
static int w83697ug_select_wd_register(void)
{
unsigned char c;
unsigned char version;
@ -102,7 +102,7 @@ static void w83697ug_select_wd_register(void)
} else {
printk(KERN_ERR PFX "No W83697UG/UF could be found\n");
return;
return -ENODEV;
}
outb_p(0x07, WDT_EFER); /* point to logical device number reg */
@ -110,6 +110,8 @@ static void w83697ug_select_wd_register(void)
outb_p(0x30, WDT_EFER); /* select CR30 */
c = inb_p(WDT_EFDR);
outb_p(c || 0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
return 0;
}
static void w83697ug_unselect_wd_register(void)
@ -117,11 +119,14 @@ static void w83697ug_unselect_wd_register(void)
outb_p(0xAA, WDT_EFER); /* Leave extended function mode */
}
static void w83697ug_init(void)
static int w83697ug_init(void)
{
int ret;
unsigned char t;
w83697ug_select_wd_register();
ret = w83697ug_select_wd_register();
if (ret != 0)
return ret;
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
t = inb_p(WDT_EFDR); /* read CRF6 */
@ -137,13 +142,15 @@ static void w83697ug_init(void)
outb_p(t, WDT_EFDR); /* Write back to CRF5 */
w83697ug_unselect_wd_register();
return 0;
}
static void wdt_ctrl(int timeout)
{
spin_lock(&io_lock);
w83697ug_select_wd_register();
if (w83697ug_select_wd_register() < 0)
return;
outb_p(0xF4, WDT_EFER); /* Select CRF4 */
outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF4 */
@ -347,7 +354,9 @@ static int __init wdt_init(void)
goto out;
}
w83697ug_init();
ret = w83697ug_init();
if (ret != 0)
goto unreg_regions;
ret = register_reboot_notifier(&wdt_notifier);
if (ret != 0) {

2
drivers/watchdog/w83977f_wdt.c
View File

@ -426,7 +426,7 @@ static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return -EFAULT;
if (wdt_set_timeout(new_timeout))
return -EINVAL;
return -EINVAL;
wdt_keepalive();
/* Fall */

24
drivers/watchdog/wd501p.h
View File

@ -11,9 +11,9 @@
*
* http://www.cymru.net
*
* This driver is provided under the GNU General Public License, incorporated
* herein by reference. The driver is provided without warranty or
* support.
* This driver is provided under the GNU General Public License,
* incorporated herein by reference. The driver is provided without
* warranty or support.
*
* Release 0.04.
*
@ -39,13 +39,13 @@
/* programmable outputs: */
#define WDT_PROGOUT (io+15) /* wr=enable, rd=disable */
/* FAN 501 500 */
#define WDC_SR_WCCR 1 /* Active low */ /* X X X */
#define WDC_SR_TGOOD 2 /* X X - */
#define WDC_SR_ISOI0 4 /* X X X */
#define WDC_SR_ISII1 8 /* X X X */
#define WDC_SR_FANGOOD 16 /* X - - */
#define WDC_SR_PSUOVER 32 /* Active low */ /* X X - */
#define WDC_SR_PSUUNDR 64 /* Active low */ /* X X - */
#define WDC_SR_IRQ 128 /* Active low */ /* X X X */
/* FAN 501 500 */
#define WDC_SR_WCCR 1 /* Active low */ /* X X X */
#define WDC_SR_TGOOD 2 /* X X - */
#define WDC_SR_ISOI0 4 /* X X X */
#define WDC_SR_ISII1 8 /* X X X */
#define WDC_SR_FANGOOD 16 /* X - - */
#define WDC_SR_PSUOVER 32 /* Active low */ /* X X - */
#define WDC_SR_PSUUNDR 64 /* Active low */ /* X X - */
#define WDC_SR_IRQ 128 /* Active low */ /* X X X */

152
drivers/watchdog/wdt.c
View File

@ -1,5 +1,5 @@
/*
* Industrial Computer Source WDT500/501 driver
* Industrial Computer Source WDT501 driver
*
* (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
* All Rights Reserved.
@ -82,14 +82,16 @@ MODULE_PARM_DESC(io, "WDT io port (default=0x240)");
module_param(irq, int, 0);
MODULE_PARM_DESC(irq, "WDT irq (default=11)");
#ifdef CONFIG_WDT_501
/* Support for the Fan Tachometer on the WDT501-P */
static int tachometer;
module_param(tachometer, int, 0);
MODULE_PARM_DESC(tachometer,
"WDT501-P Fan Tachometer support (0=disable, default=0)");
#endif /* CONFIG_WDT_501 */
static int type = 500;
module_param(type, int, 0);
MODULE_PARM_DESC(type,
"WDT501-P Card type (500 or 501 , default=500)");
/*
* Programming support
@ -158,7 +160,7 @@ static int wdt_stop(void)
* reloading the cascade counter.
*/
static int wdt_ping(void)
static void wdt_ping(void)
{
unsigned long flags;
spin_lock_irqsave(&wdt_lock, flags);
@ -169,7 +171,6 @@ static int wdt_ping(void)
wdt_ctr_load(1, wd_heartbeat); /* Heartbeat */
outb_p(0, WDT_DC); /* Enable watchdog */
spin_unlock_irqrestore(&wdt_lock, flags);
return 0;
}
/**
@ -193,7 +194,6 @@ static int wdt_set_heartbeat(int t)
/**
* wdt_get_status:
* @status: the new status.
*
* Extract the status information from a WDT watchdog device. There are
* several board variants so we have to know which bits are valid. Some
@ -202,36 +202,35 @@ static int wdt_set_heartbeat(int t)
* we then map the bits onto the status ioctl flags.
*/
static int wdt_get_status(int *status)
static int wdt_get_status(void)
{
unsigned char new_status;
int status = 0;
unsigned long flags;
spin_lock_irqsave(&wdt_lock, flags);
new_status = inb_p(WDT_SR);
spin_unlock_irqrestore(&wdt_lock, flags);
*status = 0;
if (new_status & WDC_SR_ISOI0)
*status |= WDIOF_EXTERN1;
status |= WDIOF_EXTERN1;
if (new_status & WDC_SR_ISII1)
*status |= WDIOF_EXTERN2;
#ifdef CONFIG_WDT_501
if (!(new_status & WDC_SR_TGOOD))
*status |= WDIOF_OVERHEAT;
if (!(new_status & WDC_SR_PSUOVER))
*status |= WDIOF_POWEROVER;
if (!(new_status & WDC_SR_PSUUNDR))
*status |= WDIOF_POWERUNDER;
if (tachometer) {
if (!(new_status & WDC_SR_FANGOOD))
*status |= WDIOF_FANFAULT;
status |= WDIOF_EXTERN2;
if (type == 501) {
if (!(new_status & WDC_SR_TGOOD))
status |= WDIOF_OVERHEAT;
if (!(new_status & WDC_SR_PSUOVER))
status |= WDIOF_POWEROVER;
if (!(new_status & WDC_SR_PSUUNDR))
status |= WDIOF_POWERUNDER;
if (tachometer) {
if (!(new_status & WDC_SR_FANGOOD))
status |= WDIOF_FANFAULT;
}
}
#endif /* CONFIG_WDT_501 */
return 0;
return status;
}
#ifdef CONFIG_WDT_501
/**
* wdt_get_temperature:
*
@ -239,7 +238,7 @@ static int wdt_get_status(int *status)
* farenheit. It was designed by an imperial measurement luddite.
*/
static int wdt_get_temperature(int *temperature)
static int wdt_get_temperature(void)
{
unsigned short c;
unsigned long flags;
@ -247,10 +246,18 @@ static int wdt_get_temperature(int *temperature)
spin_lock_irqsave(&wdt_lock, flags);
c = inb_p(WDT_RT);
spin_unlock_irqrestore(&wdt_lock, flags);
*temperature = (c * 11 / 15) + 7;
return 0;
return (c * 11 / 15) + 7;
}
static void wdt_decode_501(int status)
{
if (!(status & WDC_SR_TGOOD))
printk(KERN_CRIT "Overheat alarm.(%d)\n", inb_p(WDT_RT));
if (!(status & WDC_SR_PSUOVER))
printk(KERN_CRIT "PSU over voltage.\n");
if (!(status & WDC_SR_PSUUNDR))
printk(KERN_CRIT "PSU under voltage.\n");
}
#endif /* CONFIG_WDT_501 */
/**
* wdt_interrupt:
@ -275,18 +282,13 @@ static irqreturn_t wdt_interrupt(int irq, void *dev_id)
printk(KERN_CRIT "WDT status %d\n", status);
#ifdef CONFIG_WDT_501
if (!(status & WDC_SR_TGOOD))
printk(KERN_CRIT "Overheat alarm.(%d)\n", inb_p(WDT_RT));
if (!(status & WDC_SR_PSUOVER))
printk(KERN_CRIT "PSU over voltage.\n");
if (!(status & WDC_SR_PSUUNDR))
printk(KERN_CRIT "PSU under voltage.\n");
if (tachometer) {
if (!(status & WDC_SR_FANGOOD))
printk(KERN_CRIT "Possible fan fault.\n");
if (type == 501) {
wdt_decode_501(status);
if (tachometer) {
if (!(status & WDC_SR_FANGOOD))
printk(KERN_CRIT "Possible fan fault.\n");
}
}
#endif /* CONFIG_WDT_501 */
if (!(status & WDC_SR_WCCR)) {
#ifdef SOFTWARE_REBOOT
#ifdef ONLY_TESTING
@ -366,17 +368,18 @@ static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
/* Add options according to the card we have */
ident.options |= (WDIOF_EXTERN1|WDIOF_EXTERN2);
#ifdef CONFIG_WDT_501
ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER|WDIOF_POWEROVER);
if (tachometer)
ident.options |= WDIOF_FANFAULT;
#endif /* CONFIG_WDT_501 */
if (type == 501) {
ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER|
WDIOF_POWEROVER);
if (tachometer)
ident.options |= WDIOF_FANFAULT;
}
switch (cmd) {
case WDIOC_GETSUPPORT:
return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
case WDIOC_GETSTATUS:
wdt_get_status(&status);
status = wdt_get_status();
return put_user(status, p);
case WDIOC_GETBOOTSTATUS:
return put_user(0, p);
@ -446,7 +449,6 @@ static int wdt_release(struct inode *inode, struct file *file)
return 0;
}
#ifdef CONFIG_WDT_501
/**
* wdt_temp_read:
* @file: file handle to the watchdog board
@ -461,10 +463,7 @@ static int wdt_release(struct inode *inode, struct file *file)
static ssize_t wdt_temp_read(struct file *file, char __user *buf,
size_t count, loff_t *ptr)
{
int temperature;
if (wdt_get_temperature(&temperature))
return -EFAULT;
int temperature = wdt_get_temperature();
if (copy_to_user(buf, &temperature, 1))
return -EFAULT;
@ -497,7 +496,6 @@ static int wdt_temp_release(struct inode *inode, struct file *file)
{
return 0;
}
#endif /* CONFIG_WDT_501 */
/**
* notify_sys:
@ -539,7 +537,6 @@ static struct miscdevice wdt_miscdev = {
.fops = &wdt_fops,
};
#ifdef CONFIG_WDT_501
static const struct file_operations wdt_temp_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
@ -553,7 +550,6 @@ static struct miscdevice temp_miscdev = {
.name = "temperature",
.fops = &wdt_temp_fops,
};
#endif /* CONFIG_WDT_501 */
/*
* The WDT card needs to learn about soft shutdowns in order to
@ -577,9 +573,8 @@ static struct notifier_block wdt_notifier = {
static void __exit wdt_exit(void)
{
misc_deregister(&wdt_miscdev);
#ifdef CONFIG_WDT_501
misc_deregister(&temp_miscdev);
#endif /* CONFIG_WDT_501 */
if (type == 501)
misc_deregister(&temp_miscdev);
unregister_reboot_notifier(&wdt_notifier);
free_irq(irq, NULL);
release_region(io, 8);
@ -597,12 +592,17 @@ static int __init wdt_init(void)
{
int ret;
if (type != 500 && type != 501) {
printk(KERN_ERR "wdt: unknown card type '%d'.\n", type);
return -ENODEV;
}
/* Check that the heartbeat value is within it's range;
if not reset to the default */
if (wdt_set_heartbeat(heartbeat)) {
wdt_set_heartbeat(WD_TIMO);
printk(KERN_INFO "wdt: heartbeat value must be 0 < heartbeat < 65536, using %d\n",
WD_TIMO);
printk(KERN_INFO "wdt: heartbeat value must be "
"0 < heartbeat < 65536, using %d\n", WD_TIMO);
}
if (!request_region(io, 8, "wdt501p")) {
@ -625,15 +625,14 @@ static int __init wdt_init(void)
goto outirq;
}
#ifdef CONFIG_WDT_501
ret = misc_register(&temp_miscdev);
if (ret) {
printk(KERN_ERR
"wdt: cannot register miscdev on minor=%d (err=%d)\n",
TEMP_MINOR, ret);
goto outrbt;
if (type == 501) {
ret = misc_register(&temp_miscdev);
if (ret) {
printk(KERN_ERR "wdt: cannot register miscdev "
"on minor=%d (err=%d)\n", TEMP_MINOR, ret);
goto outrbt;
}
}
#endif /* CONFIG_WDT_501 */
ret = misc_register(&wdt_miscdev);
if (ret) {
@ -643,28 +642,25 @@ static int __init wdt_init(void)
goto outmisc;
}
ret = 0;
printk(KERN_INFO "WDT500/501-P driver 0.10 at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n",
printk(KERN_INFO "WDT500/501-P driver 0.10 "
"at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n",
io, irq, heartbeat, nowayout);
#ifdef CONFIG_WDT_501
printk(KERN_INFO "wdt: Fan Tachometer is %s\n",
if (type == 501)
printk(KERN_INFO "wdt: Fan Tachometer is %s\n",
(tachometer ? "Enabled" : "Disabled"));
#endif /* CONFIG_WDT_501 */
out:
return ret;
return 0;
outmisc:
#ifdef CONFIG_WDT_501
misc_deregister(&temp_miscdev);
if (type == 501)
misc_deregister(&temp_miscdev);
outrbt:
#endif /* CONFIG_WDT_501 */
unregister_reboot_notifier(&wdt_notifier);
outirq:
free_irq(irq, NULL);
outreg:
release_region(io, 8);
goto out;
out:
return ret;
}
module_init(wdt_init);

2
drivers/watchdog/wdt977.c
View File

@ -401,7 +401,7 @@ static long wdt977_ioctl(struct file *file, unsigned int cmd,
return -EFAULT;
if (wdt977_set_timeout(new_timeout))
return -EINVAL;
return -EINVAL;
wdt977_keepalive();
/* Fall */