Commit 8690d8a9 authored by Linus Torvalds's avatar Linus Torvalds

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

* 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
parents d3f12d36 3b9d49ee
......@@ -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();
}
/*
......
/*
* 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
......@@ -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
#
......
......@@ -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
......
......@@ -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);
......@@ -80,7 +80,7 @@ static void ali_stop(void)
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 &= ~(1 << 25); /* and for safety mask the reset enable */
pci_write_config_dword(ali_pci, 0xCC, val);
spin_unlock(&ali_lock);
......@@ -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;
......@@ -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);
......
......@@ -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;
}
......
......@@ -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"
......@@ -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>");
......@@ -309,7 +309,7 @@ static int cpwd_getstatus(struct cpwd *p, int index)
/* 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 {
......@@ -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)
......@@ -367,7 +368,7 @@ static int cpwd_open(struct inode *inode, struct file *f)
struct cpwd *p = cpwd_device;
lock_kernel();
switch(iminor(inode)) {
switch (iminor(inode)) {
case WD0_MINOR:
case WD1_MINOR:
case WD2_MINOR:
......@@ -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;
......@@ -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;
......@@ -508,7 +509,7 @@ 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;
......@@ -516,7 +517,7 @@ static ssize_t cpwd_read(struct file * file, char __user *buffer,
static const struct file_operations cpwd_fops = {
.owner = THIS_MODULE,
.ioctl = cpwd_ioctl,
.unlocked_ioctl = cpwd_ioctl,
.compat_ioctl = cpwd_compat_ioctl,
.open = cpwd_open,
.write = cpwd_write,
......
......@@ -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;
}
......
......@@ -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 */
......
......@@ -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;
......
......@@ -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);
......
......@@ -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 @@ static unsigned char __init esb_getdevice(void)
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 @@ static int __init watchdog_init(void)
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);
......
......@@ -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");
......
......@@ -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);
......
......@@ -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)
......
......@@ -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;
spin_lock_init(&wdt_lock);
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 == 0)
printk("Orion5x Watchdog Timer: heartbeat %d sec\n",
heartbeat);
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;
if (test_bit(WDT_IN_USE, &wdt_status)) {
wdt_disable();
clear_bit(WDT_IN_USE, &wdt_status);
}
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");
......
......@@ -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");
......
......@@ -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");
......
This diff is collapsed.
This diff is collapsed.
......@@ -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 */
......
......@@ -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 <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/mach-rc32434/integ.h>
#define VERSION "0.4"
#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/mach-rc32434/integ.h> /* For the Watchdog registers */
#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;
}
......@@ -287,9 +318,15 @@ static int __devexit rc32434_wdt_remove(struct platform_device *pdev)
return 0;
}
static struct platform_driver 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",
}
......@@ -297,12 +334,12 @@ static struct platform_driver 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);
......
......@@ -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;
......@@ -162,7 +161,7 @@ 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,
.unlocked_ioctl = riowd_ioctl,
.open = riowd_open,
.write = riowd_write,
.release = riowd_release,
......
......@@ -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 */
......
......@@ -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);
......@@ -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);
/*
* 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
......
......@@ -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);
......@@ -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) {
......
......@@ -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.
*
......
/*
* 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
status |= WDIOF_EXTERN2;
if (type == 501) {
if (!(new_status & WDC_SR_TGOOD))
*status |= WDIOF_OVERHEAT;
status |= WDIOF_OVERHEAT;
if (!(new_status & WDC_SR_PSUOVER))
*status |= WDIOF_POWEROVER;
status |= WDIOF_POWEROVER;
if (!(new_status & WDC_SR_PSUUNDR))
*status |= WDIOF_POWERUNDER;
status |= WDIOF_POWERUNDER;
if (tachometer) {
if (!(new_status & WDC_SR_FANGOOD))
*status |= WDIOF_FANFAULT;
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 (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 (type == 501) {
ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER|
WDIOF_POWEROVER);
if (tachometer)
ident.options |= WDIOF_FANFAULT;
#endif /* CONFIG_WDT_501 */
}
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
if (type == 501)
misc_deregister(&temp_miscdev);
#endif /* CONFIG_WDT_501 */
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
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);
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
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
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);
......
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