#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"
}
+/*****************************************************************************
+ * 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
****************************************************************************/
printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
disable_hlt();
}
+
+ /*
+ * Register watchdog driver
+ */
+ orion5x_wdt_init();
}
/*
--- /dev/null
+/*
+ * 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
+
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
#
/*
* 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.
*
* (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
*/
/*
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,
};
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
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);
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);
/*
* 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)
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;
*/
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) {
/* 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);
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;
}
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;
}
* 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;
/* 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)
#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"
#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
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 |
* -------------------
* -------------------
* 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.
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>");
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)
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.
*/
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 {
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)
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;
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,
.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;
cpwd_starttimer(p, index);
} else {
return -EINVAL;
- }
+ }
break;
/* Solaris-compatible IOCTLs */
case WIOCSTOP:
if (p->enabled)
- return(-EINVAL);
+ return -EINVAL;
cpwd_stoptimer(p, index);
break;
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;
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;
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,
#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: "
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);
}
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);
}
{
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;
}
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;
}
* 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:
* 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.
*/
/*
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 */
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;
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;
#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;
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------------------------------------------------------------ */
/*
* Kernel interfaces
*/
-static struct file_operations hpwdt_fops = {
+static const struct file_operations hpwdt_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = hpwdt_write,
}
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;
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);
*
* 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
#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>
#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 ": "
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) */
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)
return -EBUSY;
/* Reload and activate timer */
- esb_timer_keepalive();
esb_timer_start();
return nonseekable_open(inode, file);
* 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))
}
if (new_options & WDIOS_ENABLECARD) {
- esb_timer_keepalive();
esb_timer_start();
retval = 0;
}
}
}
-/*
- * 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
*/
.fops = &esb_fops,
};
-static struct notifier_block esb_notifier = {
- .notifier_call = esb_notify_sys,
-};
-
/*
* Data for PCI driver interface
*
* Init & exit routines
*/
-static unsigned char __init esb_getdevice(void)
+static unsigned char __devinit esb_getdevice(void)
{
u8 val1;
unsigned short val2;
return 0;
}
-static int __init watchdog_init(void)
+static int __devinit esb_probe(struct platform_device *dev)
{
int ret;
"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
BASEADDR, heartbeat, nowayout);
return 0;
-err_notifier:
- unregister_reboot_notifier(&esb_notifier);
err_unmap:
iounmap(BASEADDR);
/* err_release: */
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)
/* 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);
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
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");
#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);
/* 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;
}
/* 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;
}
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);
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)
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 */
#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)
*
* 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
* 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
#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.
#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;
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);
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;
}
if (ret)
break;
- if (time <= 0 || time > WDT_MAX_DURATION) {
+ if (time <= 0 || time > wdt_max_duration) {
ret = -EINVAL;
break;
}
.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);
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");
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;
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");
* 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
*/
/*
#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
#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);
}
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;
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"));
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
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");
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");
* 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/
*/
/*
/* 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
#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 */
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 */
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
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.
* 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");
}
}
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);
}
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
/* 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)
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;
}
}
/* 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;
* 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))
return -EFAULT;
if (pcipcwd_set_heartbeat(new_heartbeat))
- return -EINVAL;
+ return -EINVAL;
pcipcwd_keepalive();
/* Fall */
/* /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;
}
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;
* 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 */
/* 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;
}
/* 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"
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
{ 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
/* 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 */
-
- unsigned int interface_number; /* the interface number used for cmd's */
-
- 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 */
-
- 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 */
-
- int exists; /* Wether or not the device exists */
- struct mutex mtx; /* locks this structure */
+ /* save off the usb device pointer */
+ struct usb_device *udev;
+ /* the interface for this device */
+ struct usb_interface *interface;
+
+ /* the interface number used for cmd's */
+ unsigned int interface_number;
+
+ /* 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;
+
+ /* 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;
+
+ /* Wether or not the device exists */
+ int exists;
+ /* locks this structure */
+ struct mutex mtx;
};
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 */
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;
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;
}
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 */
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;
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;
}
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;
}
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;
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;
*/
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) {
* 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))
return -EFAULT;
if (usb_pcwd_set_heartbeat(usb_pcwd_device, new_heartbeat))
- return -EINVAL;
+ return -EINVAL;
usb_pcwd_keepalive(usb_pcwd_device);
/* Fall */
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;
* 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 */
* 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;
/* 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;
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;
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
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"));
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;
}
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;
}
/* 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 */
*
*/
-#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;
#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);
#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);
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)
{
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);
.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:
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;
return -EINVAL;
}
break;
+ case WDIOC_KEEPALIVE:
+ rc32434_wdt_ping();
+ break;
case WDIOC_SETTIMEOUT:
if (copy_from_user(&new_timeout, argp, sizeof(int)))
return -EFAULT;
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,
.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)
{
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;
}
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);
#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
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,
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;
}
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 = {
/*
* 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
*
* (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>
/*
* 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
* (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>
*
*
* (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
*
*/
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 */
#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 */
{
int ret;
- printk("%s\n", banner);
+ printk(KERN_INFO "%s\n", banner);
#if defined CONFIG_PNP
if (isapnp) {
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);
/*
* 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
*
* 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]
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);
* 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
*
* 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>
*
*
* 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
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;
/*
* 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
* 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>
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);
* 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.
(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;
} 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 */
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)
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 */
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 */
goto out;
}
- w83697ug_init();
+ ret = w83697ug_init();
+ if (ret != 0)
+ goto unreg_regions;
ret = register_reboot_notifier(&wdt_notifier);
if (ret != 0) {
return -EFAULT;
if (wdt_set_timeout(new_timeout))
- return -EINVAL;
+ return -EINVAL;
wdt_keepalive();
/* Fall */
*
* 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.
*
/* 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 */
/*
- * 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.
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
* reloading the cascade counter.
*/
-static int wdt_ping(void)
+static void wdt_ping(void)
{
unsigned long flags;
spin_lock_irqsave(&wdt_lock, flags);
wdt_ctr_load(1, wd_heartbeat); /* Heartbeat */
outb_p(0, WDT_DC); /* Enable watchdog */
spin_unlock_irqrestore(&wdt_lock, flags);
- return 0;
}
/**
/**
* 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
* 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:
*
* 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;
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:
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
/* 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);
return 0;
}
-#ifdef CONFIG_WDT_501
/**
* wdt_temp_read:
* @file: file handle to the watchdog board
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;
{
return 0;
}
-#endif /* CONFIG_WDT_501 */
/**
* notify_sys:
.fops = &wdt_fops,
};
-#ifdef CONFIG_WDT_501
static const struct file_operations wdt_temp_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.name = "temperature",
.fops = &wdt_temp_fops,
};
-#endif /* CONFIG_WDT_501 */
/*
* The WDT card needs to learn about soft shutdowns in order to
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);
{
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")) {
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) {
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);
return -EFAULT;
if (wdt977_set_timeout(new_timeout))
- return -EINVAL;
+ return -EINVAL;
wdt977_keepalive();
/* Fall */
projects / linux-2.6-omap-h63xx.git / commitdiff