diff options
Diffstat (limited to 'drivers/watchdog')
43 files changed, 785 insertions, 628 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 325c10ff6a2..63024145215 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -772,7 +772,7 @@ config TXX9_WDT config GEF_WDT tristate "GE Fanuc Watchdog Timer" - depends on GEF_SBC610 + depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A ---help--- Watchdog timer found in a number of GE Fanuc single board computers. @@ -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 # diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c index 3e57aa4d643..4d18c874d96 100644 --- a/drivers/watchdog/acquirewdt.c +++ b/drivers/watchdog/acquirewdt.c @@ -1,7 +1,7 @@ /* * Acquire Single Board Computer Watchdog Timer driver * - * Based on wdt.c. Original copyright messages: + * Based on wdt.c. Original copyright messages: * * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, * All Rights Reserved. @@ -17,9 +17,9 @@ * * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk> * - * 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com> - * Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT - * Can't add timeout - driver doesn't allow changing value + * 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com> + * Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT + * Can't add timeout - driver doesn't allow changing value */ /* diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c index a1d7856ea6e..824d076a5cd 100644 --- a/drivers/watchdog/advantechwdt.c +++ b/drivers/watchdog/advantechwdt.c @@ -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 diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c index 2a7690ecf97..937a80fb61e 100644 --- a/drivers/watchdog/alim1535_wdt.c +++ b/drivers/watchdog/alim1535_wdt.c @@ -60,7 +60,7 @@ static void ali_start(void) pci_read_config_dword(ali_pci, 0xCC, &val); val &= ~0x3F; /* Mask count */ - val |= (1<<25) | ali_timeout_bits; + val |= (1 << 25) | ali_timeout_bits; pci_write_config_dword(ali_pci, 0xCC, val); spin_unlock(&ali_lock); @@ -79,8 +79,8 @@ static void ali_stop(void) spin_lock(&ali_lock); pci_read_config_dword(ali_pci, 0xCC, &val); - val &= ~0x3F; /* Mask count to zero (disabled) */ - val &= ~(1<<25);/* and for safety mask the reset enable */ + val &= ~0x3F; /* Mask count to zero (disabled) */ + val &= ~(1 << 25); /* and for safety mask the reset enable */ pci_write_config_dword(ali_pci, 0xCC, val); spin_unlock(&ali_lock); @@ -89,7 +89,7 @@ static void ali_stop(void) /* * ali_keepalive - send a keepalive to the watchdog * - * Send a keepalive to the timer (actually we restart the timer). + * Send a keepalive to the timer (actually we restart the timer). */ static void ali_keepalive(void) @@ -109,11 +109,11 @@ static int ali_settimer(int t) if (t < 0) return -EINVAL; else if (t < 60) - ali_timeout_bits = t|(1<<6); + ali_timeout_bits = t|(1 << 6); else if (t < 3600) - ali_timeout_bits = (t/60)|(1<<7); + ali_timeout_bits = (t / 60)|(1 << 7); else if (t < 18000) - ali_timeout_bits = (t/300)|(1<<6)|(1<<7); + ali_timeout_bits = (t / 300)|(1 << 6)|(1 << 7); else return -EINVAL; @@ -138,7 +138,7 @@ static int ali_settimer(int t) */ static ssize_t ali_write(struct file *file, const char __user *data, - size_t len, loff_t *ppos) + size_t len, loff_t *ppos) { /* See if we got the magic character 'V' and reload the timer */ if (len) { @@ -348,9 +348,9 @@ static int __init ali_find_watchdog(void) /* Timer bits */ wdog &= ~0x3F; /* Issued events */ - wdog &= ~((1<<27)|(1<<26)|(1<<25)|(1<<24)); + wdog &= ~((1 << 27)|(1 << 26)|(1 << 25)|(1 << 24)); /* No monitor bits */ - wdog &= ~((1<<16)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)); + wdog &= ~((1 << 16)|(1 << 13)|(1 << 12)|(1 << 11)|(1 << 10)|(1 << 9)); pci_write_config_dword(pdev, 0xCC, wdog); diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c index a045ef86943..90f98df5f10 100644 --- a/drivers/watchdog/alim7101_wdt.c +++ b/drivers/watchdog/alim7101_wdt.c @@ -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; } diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c index a56ac84381b..435b0573fb0 100644 --- a/drivers/watchdog/at91sam9_wdt.c +++ b/drivers/watchdog/at91sam9_wdt.c @@ -201,7 +201,7 @@ static long at91_wdt_ioctl(struct file *file, * Pat the watchdog whenever device is written to. */ static ssize_t at91_wdt_write(struct file *file, const char *data, size_t len, - loff_t *ppos) + loff_t *ppos) { if (!len) return 0; diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c index 084dfe9cecf..41070e4771a 100644 --- a/drivers/watchdog/cpwd.c +++ b/drivers/watchdog/cpwd.c @@ -1,13 +1,13 @@ /* cpwd.c - driver implementation for hardware watchdog * timers found on Sun Microsystems CP1400 and CP1500 boards. * - * This device supports both the generic Linux watchdog + * This device supports both the generic Linux watchdog * interface and Solaris-compatible ioctls as best it is * able. * * NOTE: CP1400 systems appear to have a defective intr_mask * register on the PLD, preventing the disabling of - * timer interrupts. We use a timer to periodically + * timer interrupts. We use a timer to periodically * reset 'stopped' watchdogs on affected platforms. * * Copyright (c) 2000 Eric Brower (ebrower@usa.net) @@ -28,10 +28,9 @@ #include <linux/io.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/uaccess.h> #include <asm/irq.h> -#include <asm/uaccess.h> - #include <asm/watchdog.h> #define DRIVER_NAME "cpwd" @@ -43,8 +42,8 @@ #define WD_BLIMIT 0xFFFF #define WD0_MINOR 212 -#define WD1_MINOR 213 -#define WD2_MINOR 214 +#define WD1_MINOR 213 +#define WD2_MINOR 214 /* Internal driver definitions. */ #define WD0_ID 0 @@ -91,16 +90,16 @@ struct cpwd { static struct cpwd *cpwd_device; -/* Sun uses Altera PLD EPF8820ATC144-4 +/* Sun uses Altera PLD EPF8820ATC144-4 * providing three hardware watchdogs: * - * 1) RIC - sends an interrupt when triggered - * 2) XIR - asserts XIR_B_RESET when triggered, resets CPU - * 3) POR - asserts POR_B_RESET when triggered, resets CPU, backplane, board + * 1) RIC - sends an interrupt when triggered + * 2) XIR - asserts XIR_B_RESET when triggered, resets CPU + * 3) POR - asserts POR_B_RESET when triggered, resets CPU, backplane, board * *** Timer register block definition (struct wd_timer_regblk) * - * dcntr and limit registers (halfword access): + * dcntr and limit registers (halfword access): * ------------------- * | 15 | ...| 1 | 0 | * ------------------- @@ -108,7 +107,8 @@ static struct cpwd *cpwd_device; * ------------------- * dcntr - Current 16-bit downcounter value. * When downcounter reaches '0' watchdog expires. - * Reading this register resets downcounter with 'limit' value. + * Reading this register resets downcounter with + * 'limit' value. * limit - 16-bit countdown value in 1/10th second increments. * Writing this register begins countdown with input value. * Reading from this register does not affect counter. @@ -158,11 +158,11 @@ static int wd0_timeout = 0; static int wd1_timeout = 0; static int wd2_timeout = 0; -module_param (wd0_timeout, int, 0); +module_param(wd0_timeout, int, 0); MODULE_PARM_DESC(wd0_timeout, "Default watchdog0 timeout in 1/10secs"); -module_param (wd1_timeout, int, 0); +module_param(wd1_timeout, int, 0); MODULE_PARM_DESC(wd1_timeout, "Default watchdog1 timeout in 1/10secs"); -module_param (wd2_timeout, int, 0); +module_param(wd2_timeout, int, 0); MODULE_PARM_DESC(wd2_timeout, "Default watchdog2 timeout in 1/10secs"); MODULE_AUTHOR("Eric Brower <ebrower@usa.net>"); @@ -201,9 +201,9 @@ static u8 cpwd_readb(void __iomem *addr) static void cpwd_toggleintr(struct cpwd *p, int index, int enable) { unsigned char curregs = cpwd_readb(p->regs + PLD_IMASK); - unsigned char setregs = - (index == -1) ? - (WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) : + unsigned char setregs = + (index == -1) ? + (WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) : (p->devs[index].intr_mask); if (enable == WD_INTR_ON) @@ -303,24 +303,24 @@ static int cpwd_getstatus(struct cpwd *p, int index) unsigned char ret = WD_STOPPED; /* determine STOPPED */ - if (!stat) + if (!stat) return ret; /* determine EXPIRED vs FREERUN vs RUNNING */ else if (WD_S_EXPIRED & stat) { ret = WD_EXPIRED; - } else if(WD_S_RUNNING & stat) { + } else if (WD_S_RUNNING & stat) { if (intr & p->devs[index].intr_mask) { ret = WD_FREERUN; } else { /* Fudge WD_EXPIRED status for defective CP1400-- - * IF timer is running - * AND brokenstop is set + * IF timer is running + * AND brokenstop is set * AND an interrupt has been serviced * we are WD_EXPIRED. * - * IF timer is running - * AND brokenstop is set + * IF timer is running + * AND brokenstop is set * AND no interrupt has been serviced * we are WD_FREERUN. */ @@ -329,7 +329,8 @@ static int cpwd_getstatus(struct cpwd *p, int index) if (p->devs[index].runstatus & WD_STAT_SVCD) { ret = WD_EXPIRED; } else { - /* we could as well pretend we are expired */ + /* we could as well pretend + * we are expired */ ret = WD_FREERUN; } } else { @@ -342,7 +343,7 @@ static int cpwd_getstatus(struct cpwd *p, int index) if (p->devs[index].runstatus & WD_STAT_SVCD) ret |= WD_SERVICED; - return(ret); + return ret; } static irqreturn_t cpwd_interrupt(int irq, void *dev_id) @@ -367,22 +368,22 @@ static int cpwd_open(struct inode *inode, struct file *f) struct cpwd *p = cpwd_device; lock_kernel(); - switch(iminor(inode)) { - case WD0_MINOR: - case WD1_MINOR: - case WD2_MINOR: - break; + switch (iminor(inode)) { + case WD0_MINOR: + case WD1_MINOR: + case WD2_MINOR: + break; - default: - unlock_kernel(); - return -ENODEV; + default: + unlock_kernel(); + return -ENODEV; } /* Register IRQ on first open of device */ if (!p->initialized) { - if (request_irq(p->irq, &cpwd_interrupt, + if (request_irq(p->irq, &cpwd_interrupt, IRQF_SHARED, DRIVER_NAME, p)) { - printk(KERN_ERR PFX "Cannot register IRQ %d\n", + printk(KERN_ERR PFX "Cannot register IRQ %d\n", p->irq); unlock_kernel(); return -EBUSY; @@ -400,8 +401,7 @@ static int cpwd_release(struct inode *inode, struct file *file) return 0; } -static int cpwd_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { static struct watchdog_info info = { .options = WDIOF_SETTIMEOUT, @@ -409,6 +409,7 @@ static int cpwd_ioctl(struct inode *inode, struct file *file, .identity = DRIVER_NAME, }; void __user *argp = (void __user *)arg; + struct inode *inode = file->f_path.dentry->d_inode; int index = iminor(inode) - WD0_MINOR; struct cpwd *p = cpwd_device; int setopt = 0; @@ -442,7 +443,7 @@ static int cpwd_ioctl(struct inode *inode, struct file *file, cpwd_starttimer(p, index); } else { return -EINVAL; - } + } break; /* Solaris-compatible IOCTLs */ @@ -458,7 +459,7 @@ static int cpwd_ioctl(struct inode *inode, struct file *file, case WIOCSTOP: if (p->enabled) - return(-EINVAL); + return -EINVAL; cpwd_stoptimer(p, index); break; @@ -481,7 +482,7 @@ static long cpwd_compat_ioctl(struct file *file, unsigned int cmd, case WIOCSTOP: case WIOCGSTAT: lock_kernel(); - rval = cpwd_ioctl(file->f_path.dentry->d_inode, file, cmd, arg); + rval = cpwd_ioctl(file, cmd, arg); unlock_kernel(); break; @@ -493,7 +494,7 @@ static long cpwd_compat_ioctl(struct file *file, unsigned int cmd, return rval; } -static ssize_t cpwd_write(struct file *file, const char __user *buf, +static ssize_t cpwd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { struct inode *inode = file->f_path.dentry->d_inode; @@ -508,20 +509,20 @@ static ssize_t cpwd_write(struct file *file, const char __user *buf, return 0; } -static ssize_t cpwd_read(struct file * file, char __user *buffer, +static ssize_t cpwd_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) { return -EINVAL; } static const struct file_operations cpwd_fops = { - .owner = THIS_MODULE, - .ioctl = cpwd_ioctl, - .compat_ioctl = cpwd_compat_ioctl, - .open = cpwd_open, - .write = cpwd_write, - .read = cpwd_read, - .release = cpwd_release, + .owner = THIS_MODULE, + .unlocked_ioctl = cpwd_ioctl, + .compat_ioctl = cpwd_compat_ioctl, + .open = cpwd_open, + .write = cpwd_write, + .read = cpwd_read, + .release = cpwd_release, }; static int __devinit cpwd_probe(struct of_device *op, diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c index 2e136028673..c51d0b0ea0c 100644 --- a/drivers/watchdog/davinci_wdt.c +++ b/drivers/watchdog/davinci_wdt.c @@ -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; } diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c index a171fc6ae1c..9add3541fb4 100644 --- a/drivers/watchdog/eurotechwdt.c +++ b/drivers/watchdog/eurotechwdt.c @@ -8,19 +8,19 @@ * Based on wdt.c. * Original copyright messages: * - * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>, + * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>, * All Rights Reserved. * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. * - * Neither Alan Cox nor CymruNet Ltd. admit liability nor provide - * warranty for any of this software. This material is provided - * "AS-IS" and at no charge. + * Neither Alan Cox nor CymruNet Ltd. admit liability nor provide + * warranty for any of this software. This material is provided + * "AS-IS" and at no charge. * - * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>* + * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>* */ /* Changelog: @@ -37,7 +37,7 @@ * add expect_close support * * 2002.05.30 - Joel Becker <joel.becker@oracle.com> - * Added Matt Domsch's nowayout module option. + * Added Matt Domsch's nowayout module option. */ /* @@ -151,7 +151,7 @@ static void eurwdt_activate_timer(void) if (irq == 0) printk(KERN_INFO ": interrupt disabled\n"); - eurwdt_write_reg(WDT_TIMER_CFG, irq<<4); + eurwdt_write_reg(WDT_TIMER_CFG, irq << 4); eurwdt_write_reg(WDT_UNIT_SEL, WDT_UNIT_SECS); /* we use seconds */ eurwdt_set_timeout(0); /* the default timeout */ diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c index 6799a6de66f..9acf0015a1e 100644 --- a/drivers/watchdog/geodewdt.c +++ b/drivers/watchdog/geodewdt.c @@ -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; diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 763c1ea5dce..3137361ccbf 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -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------------------------------------------------------------ */ @@ -382,7 +380,7 @@ asm(".text \n\t" * This function checks whether or not a SMBIOS/DMI record is * the 64bit CRU info or not */ -static void __devinit dmi_find_cru(const struct dmi_header *dm) +static void __devinit dmi_find_cru(const struct dmi_header *dm, void *dummy) { struct smbios_cru64_info *smbios_cru64_ptr; unsigned long cru_physical_address; @@ -405,7 +403,7 @@ static int __devinit detect_cru_service(void) { cru_rom_addr = NULL; - dmi_walk(dmi_find_cru); + dmi_walk(dmi_find_cru, NULL); /* if cru_rom_addr has been set then we found a CRU service */ return ((cru_rom_addr != NULL) ? 0 : -ENODEV); @@ -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); diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c index 74f951c18b9..2dbe83570d6 100644 --- a/drivers/watchdog/i6300esb.c +++ b/drivers/watchdog/i6300esb.c @@ -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; } @@ -319,19 +324,6 @@ static long esb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } /* - * Notify system - */ - -static int esb_notify_sys(struct notifier_block *this, - unsigned long code, void *unused) -{ - if (code == SYS_DOWN || code == SYS_HALT) - esb_timer_stop(); /* Turn the WDT off */ - - return NOTIFY_DONE; -} - -/* * Kernel Interfaces */ @@ -350,10 +342,6 @@ static struct miscdevice esb_miscdev = { .fops = &esb_fops, }; -static struct notifier_block esb_notifier = { - .notifier_call = esb_notify_sys, -}; - /* * Data for PCI driver interface * @@ -372,7 +360,7 @@ MODULE_DEVICE_TABLE(pci, esb_pci_tbl); * Init & exit routines */ -static unsigned char __init esb_getdevice(void) +static unsigned char __devinit esb_getdevice(void) { u8 val1; unsigned short val2; @@ -443,7 +431,7 @@ err_devput: return 0; } -static int __init watchdog_init(void) +static int __devinit esb_probe(struct platform_device *dev) { int ret; @@ -459,19 +447,13 @@ static int __init watchdog_init(void) "heartbeat value must be 1<heartbeat<2046, using %d\n", heartbeat); } - ret = register_reboot_notifier(&esb_notifier); - if (ret != 0) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); - goto err_unmap; - } ret = misc_register(&esb_miscdev); if (ret != 0) { printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); - goto err_notifier; + goto err_unmap; } esb_timer_stop(); printk(KERN_INFO PFX @@ -479,8 +461,6 @@ static int __init watchdog_init(void) BASEADDR, heartbeat, nowayout); return 0; -err_notifier: - unregister_reboot_notifier(&esb_notifier); err_unmap: iounmap(BASEADDR); /* err_release: */ @@ -492,7 +472,7 @@ err_unmap: return ret; } -static void __exit watchdog_cleanup(void) +static int __devexit esb_remove(struct platform_device *dev) { /* Stop the timer before we leave */ if (!nowayout) @@ -500,11 +480,58 @@ static void __exit watchdog_cleanup(void) /* Deregister */ misc_deregister(&esb_miscdev); - unregister_reboot_notifier(&esb_notifier); iounmap(BASEADDR); pci_release_region(esb_pci, 0); pci_disable_device(esb_pci); pci_dev_put(esb_pci); + return 0; +} + +static void esb_shutdown(struct platform_device *dev) +{ + esb_timer_stop(); +} + +static struct platform_driver esb_platform_driver = { + .probe = esb_probe, + .remove = __devexit_p(esb_remove), + .shutdown = esb_shutdown, + .driver = { + .owner = THIS_MODULE, + .name = ESB_MODULE_NAME, + }, +}; + +static int __init watchdog_init(void) +{ + int err; + + printk(KERN_INFO PFX "Intel 6300ESB WatchDog Timer Driver v%s\n", + ESB_VERSION); + + err = platform_driver_register(&esb_platform_driver); + if (err) + return err; + + esb_platform_device = platform_device_register_simple(ESB_MODULE_NAME, + -1, NULL, 0); + if (IS_ERR(esb_platform_device)) { + err = PTR_ERR(esb_platform_device); + goto unreg_platform_driver; + } + + return 0; + +unreg_platform_driver: + platform_driver_unregister(&esb_platform_driver); + return err; +} + +static void __exit watchdog_cleanup(void) +{ + platform_device_unregister(esb_platform_device); + platform_driver_unregister(&esb_platform_driver); + printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); } module_init(watchdog_init); diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c index d8264ad0be4..d3c0f6de552 100644 --- a/drivers/watchdog/iTCO_vendor_support.c +++ b/drivers/watchdog/iTCO_vendor_support.c @@ -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"); diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c index 352334947ea..648250b998c 100644 --- a/drivers/watchdog/iTCO_wdt.c +++ b/drivers/watchdog/iTCO_wdt.c @@ -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); diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c index afb8af397a9..cc133c531d0 100644 --- a/drivers/watchdog/it87_wdt.c +++ b/drivers/watchdog/it87_wdt.c @@ -188,8 +188,8 @@ static inline int superio_inb(int reg) static inline void superio_outb(int val, int reg) { - outb(reg, REG); - outb(val, VAL); + outb(reg, REG); + outb(val, VAL); } static inline int superio_inw(int reg) @@ -204,10 +204,10 @@ static inline int superio_inw(int reg) static inline void superio_outw(int val, int reg) { - outb(reg++, REG); - outb(val >> 8, VAL); - outb(reg, REG); - outb(val, VAL); + outb(reg++, REG); + outb(val >> 8, VAL); + outb(reg, REG); + outb(val, VAL); } /* watchdog timer handling */ diff --git a/drivers/watchdog/mpc5200_wdt.c b/drivers/watchdog/mpc5200_wdt.c index db91892558f..465fe36adad 100644 --- a/drivers/watchdog/mpc5200_wdt.c +++ b/drivers/watchdog/mpc5200_wdt.c @@ -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) diff --git a/drivers/watchdog/mpcore_wdt.c b/drivers/watchdog/mpcore_wdt.c index 1130ad697ce..1512ab8b175 100644 --- a/drivers/watchdog/mpcore_wdt.c +++ b/drivers/watchdog/mpcore_wdt.c @@ -5,7 +5,7 @@ * * Based on the SoftDog driver: * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, - * All Rights Reserved. + * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c index 3acce623f20..539b6f6ba7f 100644 --- a/drivers/watchdog/mtx-1_wdt.c +++ b/drivers/watchdog/mtx-1_wdt.c @@ -5,7 +5,7 @@ * All Rights Reserved. * http://www.4g-systems.biz * - * (C) Copyright 2007 OpenWrt.org, Florian Fainelli <florian@openwrt.org> + * (C) Copyright 2007 OpenWrt.org, Florian Fainelli <florian@openwrt.org> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c index 2f2ce7429f5..aa5ad6e33f0 100644 --- a/drivers/watchdog/omap_wdt.c +++ b/drivers/watchdog/omap_wdt.c @@ -60,9 +60,8 @@ struct omap_wdt_dev { void __iomem *base; /* physical */ struct device *dev; int omap_wdt_users; - struct clk *armwdt_ck; - struct clk *mpu_wdt_ick; - struct clk *mpu_wdt_fck; + struct clk *ick; + struct clk *fck; struct resource *mem; struct miscdevice omap_wdt_miscdev; }; @@ -146,13 +145,8 @@ static int omap_wdt_open(struct inode *inode, struct file *file) if (test_and_set_bit(1, (unsigned long *)&(wdev->omap_wdt_users))) return -EBUSY; - if (cpu_is_omap16xx()) - clk_enable(wdev->armwdt_ck); /* Enable the clock */ - - if (cpu_is_omap24xx() || cpu_is_omap34xx()) { - clk_enable(wdev->mpu_wdt_ick); /* Enable the interface clock */ - clk_enable(wdev->mpu_wdt_fck); /* Enable the functional clock */ - } + clk_enable(wdev->ick); /* Enable the interface clock */ + clk_enable(wdev->fck); /* Enable the functional clock */ /* initialize prescaler */ while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01) @@ -181,13 +175,8 @@ static int omap_wdt_release(struct inode *inode, struct file *file) omap_wdt_disable(wdev); - if (cpu_is_omap16xx()) - clk_disable(wdev->armwdt_ck); /* Disable the clock */ - - if (cpu_is_omap24xx() || cpu_is_omap34xx()) { - clk_disable(wdev->mpu_wdt_ick); /* Disable the clock */ - clk_disable(wdev->mpu_wdt_fck); /* Disable the clock */ - } + clk_disable(wdev->ick); + clk_disable(wdev->fck); #else printk(KERN_CRIT "omap_wdt: Unexpected close, not stopping!\n"); #endif @@ -303,44 +292,19 @@ static int __init omap_wdt_probe(struct platform_device *pdev) wdev->omap_wdt_users = 0; wdev->mem = mem; - if (cpu_is_omap16xx()) { - wdev->armwdt_ck = clk_get(&pdev->dev, "armwdt_ck"); - if (IS_ERR(wdev->armwdt_ck)) { - ret = PTR_ERR(wdev->armwdt_ck); - wdev->armwdt_ck = NULL; - goto err_clk; - } + wdev->ick = clk_get(&pdev->dev, "ick"); + if (IS_ERR(wdev->ick)) { + ret = PTR_ERR(wdev->ick); + wdev->ick = NULL; + goto err_clk; } - - if (cpu_is_omap24xx()) { - wdev->mpu_wdt_ick = clk_get(&pdev->dev, "mpu_wdt_ick"); - if (IS_ERR(wdev->mpu_wdt_ick)) { - ret = PTR_ERR(wdev->mpu_wdt_ick); - wdev->mpu_wdt_ick = NULL; - goto err_clk; - } - wdev->mpu_wdt_fck = clk_get(&pdev->dev, "mpu_wdt_fck"); - if (IS_ERR(wdev->mpu_wdt_fck)) { - ret = PTR_ERR(wdev->mpu_wdt_fck); - wdev->mpu_wdt_fck = NULL; - goto err_clk; - } + wdev->fck = clk_get(&pdev->dev, "fck"); + if (IS_ERR(wdev->fck)) { + ret = PTR_ERR(wdev->fck); + wdev->fck = NULL; + goto err_clk; } - if (cpu_is_omap34xx()) { - wdev->mpu_wdt_ick = clk_get(&pdev->dev, "wdt2_ick"); - if (IS_ERR(wdev->mpu_wdt_ick)) { - ret = PTR_ERR(wdev->mpu_wdt_ick); - wdev->mpu_wdt_ick = NULL; - goto err_clk; - } - wdev->mpu_wdt_fck = clk_get(&pdev->dev, "wdt2_fck"); - if (IS_ERR(wdev->mpu_wdt_fck)) { - ret = PTR_ERR(wdev->mpu_wdt_fck); - wdev->mpu_wdt_fck = NULL; - goto err_clk; - } - } wdev->base = ioremap(res->start, res->end - res->start + 1); if (!wdev->base) { ret = -ENOMEM; @@ -380,12 +344,10 @@ err_ioremap: wdev->base = NULL; err_clk: - if (wdev->armwdt_ck) - clk_put(wdev->armwdt_ck); - if (wdev->mpu_wdt_ick) - clk_put(wdev->mpu_wdt_ick); - if (wdev->mpu_wdt_fck) - clk_put(wdev->mpu_wdt_fck); + if (wdev->ick) + clk_put(wdev->ick); + if (wdev->fck) + clk_put(wdev->fck); kfree(wdev); err_kzalloc: @@ -417,20 +379,8 @@ static int omap_wdt_remove(struct platform_device *pdev) release_mem_region(res->start, res->end - res->start + 1); platform_set_drvdata(pdev, NULL); - if (wdev->armwdt_ck) { - clk_put(wdev->armwdt_ck); - wdev->armwdt_ck = NULL; - } - - if (wdev->mpu_wdt_ick) { - clk_put(wdev->mpu_wdt_ick); - wdev->mpu_wdt_ick = NULL; - } - - if (wdev->mpu_wdt_fck) { - clk_put(wdev->mpu_wdt_fck); - wdev->mpu_wdt_fck = NULL; - } + clk_put(wdev->ick); + clk_put(wdev->fck); iounmap(wdev->base); kfree(wdev); diff --git a/drivers/watchdog/orion5x_wdt.c b/drivers/watchdog/orion5x_wdt.c index b64ae1a1783..e81441f103d 100644 --- a/drivers/watchdog/orion5x_wdt.c +++ b/drivers/watchdog/orion5x_wdt.c @@ -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"); diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c index 484c215e9f3..1a2b916e3f8 100644 --- a/drivers/watchdog/pc87413_wdt.c +++ b/drivers/watchdog/pc87413_wdt.c @@ -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"); diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c index 9e1331a3b21..aa9512321f3 100644 --- a/drivers/watchdog/pcwd.c +++ b/drivers/watchdog/pcwd.c @@ -24,25 +24,25 @@ * version reporting. Added read routine for temperature. * Removed some extra defines, added an autodetect Revision * routine. - * 961006 Revised some documentation, fixed some cosmetic bugs. Made - * drivers to panic the system if it's overheating at bootup. + * 961006 Revised some documentation, fixed some cosmetic bugs. Made + * drivers to panic the system if it's overheating at bootup. * 961118 Changed some verbiage on some of the output, tidied up * code bits, and added compatibility to 2.1.x. - * 970912 Enabled board on open and disable on close. + * 970912 Enabled board on open and disable on close. * 971107 Took account of recent VFS changes (broke read). - * 971210 Disable board on initialisation in case board already ticking. - * 971222 Changed open/close for temperature handling - * Michael Meskes <meskes@debian.org>. - * 980112 Used minor numbers from include/linux/miscdevice.h - * 990403 Clear reset status after reading control status register in - * pcwd_showprevstate(). [Marc Boucher <marc@mbsi.ca>] + * 971210 Disable board on initialisation in case board already ticking. + * 971222 Changed open/close for temperature handling + * Michael Meskes <meskes@debian.org>. + * 980112 Used minor numbers from include/linux/miscdevice.h + * 990403 Clear reset status after reading control status register in + * pcwd_showprevstate(). [Marc Boucher <marc@mbsi.ca>] * 990605 Made changes to code to support Firmware 1.22a, added * fairly useless proc entry. * 990610 removed said useless proc code for the merge <alan> * 000403 Removed last traces of proc code. <davej> * 011214 Added nowayout module option to override * CONFIG_WATCHDOG_NOWAYOUT <Matt_Domsch@dell.com> - * Added timeout module option to override default + * Added timeout module option to override default */ /* @@ -76,8 +76,7 @@ #define WATCHDOG_DRIVER_NAME "ISA-PC Watchdog" #define WATCHDOG_NAME "pcwd" #define PFX WATCHDOG_NAME ": " -#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION " (" WATCHDOG_DATE ")\n" -#define WD_VER WATCHDOG_VERSION " (" WATCHDOG_DATE ")" +#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION "\n" /* * It should be noted that PCWD_REVISION_B was removed because A and B @@ -200,7 +199,9 @@ MODULE_PARM_DESC(debug, #define WATCHDOG_HEARTBEAT 0 static int heartbeat = WATCHDOG_HEARTBEAT; module_param(heartbeat, int, 0); -MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (2 <= heartbeat <= 7200 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); +MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. " + "(2 <= heartbeat <= 7200 or 0=delay-time from dip-switches, default=" + __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); static int nowayout = WATCHDOG_NOWAYOUT; module_param(nowayout, int, 0); @@ -239,7 +240,8 @@ static int send_isa_command(int cmd) } if (debug >= DEBUG) - printk(KERN_DEBUG PFX "received following data for cmd=0x%02x: port0=0x%02x last_port0=0x%02x\n", + printk(KERN_DEBUG PFX "received following data for " + "cmd=0x%02x: port0=0x%02x last_port0=0x%02x\n", cmd, port0, last_port0); return port0; @@ -339,10 +341,12 @@ static void pcwd_show_card_info(void) pcwd_private.io_addr); else if (pcwd_private.revision == PCWD_REVISION_C) { pcwd_get_firmware(); - printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n", + printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port " + "0x%04x (Firmware version: %s)\n", pcwd_private.io_addr, pcwd_private.fw_ver_str); option_switches = pcwd_get_option_switches(); - printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n", + printk(KERN_INFO PFX "Option switches (0x%02x): " + "Temperature Reset Enable=%s, Power On Delay=%s\n", option_switches, ((option_switches & 0x10) ? "ON" : "OFF"), ((option_switches & 0x08) ? "ON" : "OFF")); @@ -358,7 +362,8 @@ static void pcwd_show_card_info(void) printk(KERN_INFO PFX "Temperature Option Detected\n"); if (pcwd_private.boot_status & WDIOF_CARDRESET) - printk(KERN_INFO PFX "Previous reboot was caused by the card\n"); + printk(KERN_INFO PFX + "Previous reboot was caused by the card\n"); if (pcwd_private.boot_status & WDIOF_OVERHEAT) { printk(KERN_EMERG PFX @@ -871,7 +876,7 @@ static int __devinit pcwd_isa_probe(struct device *dev, unsigned int id) cards_found++; if (cards_found == 1) printk(KERN_INFO PFX "v%s Ken Hollis (kenji@bitgate.com)\n", - WD_VER); + WATCHDOG_VERSION); if (cards_found > 1) { printk(KERN_ERR PFX "This driver only supports 1 device\n"); @@ -1026,7 +1031,8 @@ static void __exit pcwd_cleanup_module(void) module_init(pcwd_init_module); module_exit(pcwd_cleanup_module); -MODULE_AUTHOR("Ken Hollis <kenji@bitgate.com>, Wim Van Sebroeck <wim@iguana.be>"); +MODULE_AUTHOR("Ken Hollis <kenji@bitgate.com>, " + "Wim Van Sebroeck <wim@iguana.be>"); MODULE_DESCRIPTION("Berkshire ISA-PC Watchdog driver"); MODULE_VERSION(WATCHDOG_VERSION); MODULE_LICENSE("GPL"); diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c index 5d76422c402..698f51bff1b 100644 --- a/drivers/watchdog/pcwd_pci.c +++ b/drivers/watchdog/pcwd_pci.c @@ -24,7 +24,8 @@ * A bells and whistles driver is available from: * http://www.kernel.org/pub/linux/kernel/people/wim/pcwd/pcwd_pci/ * - * More info available at http://www.berkprod.com/ or http://www.pcwatchdog.com/ + * More info available at + * http://www.berkprod.com/ or http://www.pcwatchdog.com/ */ /* @@ -51,11 +52,10 @@ /* Module and version information */ #define WATCHDOG_VERSION "1.03" -#define WATCHDOG_DATE "21 Jan 2007" #define WATCHDOG_DRIVER_NAME "PCI-PC Watchdog" #define WATCHDOG_NAME "pcwd_pci" #define PFX WATCHDOG_NAME ": " -#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION " (" WATCHDOG_DATE ")\n" +#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION "\n" /* Stuff for the PCI ID's */ #ifndef PCI_VENDOR_ID_QUICKLOGIC @@ -76,7 +76,8 @@ #define WD_PCI_TTRP 0x04 /* Temperature Trip status */ #define WD_PCI_RL2A 0x08 /* Relay 2 Active */ #define WD_PCI_RL1A 0x10 /* Relay 1 Active */ -#define WD_PCI_R2DS 0x40 /* Relay 2 Disable Temperature-trip/reset */ +#define WD_PCI_R2DS 0x40 /* Relay 2 Disable Temperature-trip / + reset */ #define WD_PCI_RLY2 0x80 /* Activate Relay 2 on the board */ /* Port 2 : Control Status #2 */ #define WD_PCI_WDIS 0x10 /* Watchdog Disable */ @@ -114,12 +115,18 @@ static int cards_found; static int temp_panic; static unsigned long is_active; static char expect_release; -static struct { /* this is private data for each PCI-PC watchdog card */ - int supports_temp; /* Wether or not the card has a temperature device */ - int boot_status; /* The card's boot status */ - unsigned long io_addr; /* The cards I/O address */ - spinlock_t io_lock; /* the lock for io operations */ - struct pci_dev *pdev; /* the PCI-device */ +/* this is private data for each PCI-PC watchdog card */ +static struct { + /* Wether or not the card has a temperature device */ + int supports_temp; + /* The card's boot status */ + int boot_status; + /* The cards I/O address */ + unsigned long io_addr; + /* the lock for io operations */ + spinlock_t io_lock; + /* the PCI-device */ + struct pci_dev *pdev; } pcipcwd_private; /* module parameters */ @@ -130,14 +137,18 @@ static int debug = QUIET; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level: 0=Quiet, 1=Verbose, 2=Debug (default=0)"); -#define WATCHDOG_HEARTBEAT 0 /* default heartbeat = delay-time from dip-switches */ +#define WATCHDOG_HEARTBEAT 0 /* default heartbeat = + delay-time from dip-switches */ static int heartbeat = WATCHDOG_HEARTBEAT; module_param(heartbeat, int, 0); -MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); +MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. " + "(0<heartbeat<65536 or 0=delay-time from dip-switches, default=" + __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); static int nowayout = WATCHDOG_NOWAYOUT; module_param(nowayout, int, 0); -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); /* * Internal functions @@ -148,8 +159,8 @@ static int send_command(int cmd, int *msb, int *lsb) int got_response, count; if (debug >= DEBUG) - printk(KERN_DEBUG PFX "sending following data cmd=0x%02x msb=0x%02x lsb=0x%02x\n", - cmd, *msb, *lsb); + printk(KERN_DEBUG PFX "sending following data " + "cmd=0x%02x msb=0x%02x lsb=0x%02x\n", cmd, *msb, *lsb); spin_lock(&pcipcwd_private.io_lock); /* If a command requires data it should be written first. @@ -166,17 +177,20 @@ static int send_command(int cmd, int *msb, int *lsb) * the WRSP bit in port 2 and give it a max. timeout of * PCI_COMMAND_TIMEOUT to process */ got_response = inb_p(pcipcwd_private.io_addr + 2) & WD_PCI_WRSP; - for (count = 0; (count < PCI_COMMAND_TIMEOUT) && (!got_response); count++) { + for (count = 0; (count < PCI_COMMAND_TIMEOUT) && (!got_response); + count++) { mdelay(1); got_response = inb_p(pcipcwd_private.io_addr + 2) & WD_PCI_WRSP; } if (debug >= DEBUG) { if (got_response) { - printk(KERN_DEBUG PFX "time to process command was: %d ms\n", + printk(KERN_DEBUG PFX + "time to process command was: %d ms\n", count); } else { - printk(KERN_DEBUG PFX "card did not respond on command!\n"); + printk(KERN_DEBUG PFX + "card did not respond on command!\n"); } } @@ -189,7 +203,8 @@ static int send_command(int cmd, int *msb, int *lsb) inb_p(pcipcwd_private.io_addr + 6); if (debug >= DEBUG) - printk(KERN_DEBUG PFX "received following data for cmd=0x%02x: msb=0x%02x lsb=0x%02x\n", + printk(KERN_DEBUG PFX "received following data for " + "cmd=0x%02x: msb=0x%02x lsb=0x%02x\n", cmd, *msb, *lsb); } @@ -218,7 +233,8 @@ static void pcipcwd_show_card_info(void) char fw_ver_str[20]; /* The cards firmware version */ int option_switches; - got_fw_rev = send_command(CMD_GET_FIRMWARE_VERSION, &fw_rev_major, &fw_rev_minor); + got_fw_rev = send_command(CMD_GET_FIRMWARE_VERSION, &fw_rev_major, + &fw_rev_minor); if (got_fw_rev) sprintf(fw_ver_str, "%u.%02u", fw_rev_major, fw_rev_minor); else @@ -227,23 +243,27 @@ static void pcipcwd_show_card_info(void) /* Get switch settings */ option_switches = pcipcwd_get_option_switches(); - printk(KERN_INFO PFX "Found card at port 0x%04x (Firmware: %s) %s temp option\n", + printk(KERN_INFO PFX "Found card at port " + "0x%04x (Firmware: %s) %s temp option\n", (int) pcipcwd_private.io_addr, fw_ver_str, (pcipcwd_private.supports_temp ? "with" : "without")); - printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n", + printk(KERN_INFO PFX "Option switches (0x%02x): " + "Temperature Reset Enable=%s, Power On Delay=%s\n", option_switches, ((option_switches & 0x10) ? "ON" : "OFF"), ((option_switches & 0x08) ? "ON" : "OFF")); if (pcipcwd_private.boot_status & WDIOF_CARDRESET) - printk(KERN_INFO PFX "Previous reset was caused by the Watchdog card\n"); + printk(KERN_INFO PFX + "Previous reset was caused by the Watchdog card\n"); if (pcipcwd_private.boot_status & WDIOF_OVERHEAT) printk(KERN_INFO PFX "Card sensed a CPU Overheat\n"); if (pcipcwd_private.boot_status == 0) - printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n"); + printk(KERN_INFO PFX + "No previous trip detected - Cold boot or reset\n"); } static int pcipcwd_start(void) @@ -283,7 +303,8 @@ static int pcipcwd_stop(void) spin_unlock(&pcipcwd_private.io_lock); if (!(stat_reg & WD_PCI_WDIS)) { - printk(KERN_ERR PFX "Card did not acknowledge disable attempt\n"); + printk(KERN_ERR PFX + "Card did not acknowledge disable attempt\n"); return -1; } @@ -364,7 +385,8 @@ static int pcipcwd_clear_status(void) } /* clear trip status & LED and keep mode of relay 2 */ - outb_p((control_status & WD_PCI_R2DS) | WD_PCI_WTRP, pcipcwd_private.io_addr + 1); + outb_p((control_status & WD_PCI_R2DS) | WD_PCI_WTRP, + pcipcwd_private.io_addr + 1); /* clear reset counter */ msb = 0; @@ -437,7 +459,8 @@ static ssize_t pcipcwd_write(struct file *file, const char __user *data, * five months ago... */ expect_release = 0; - /* scan to see whether or not we got the magic character */ + /* scan to see whether or not we got the + * magic character */ for (i = 0; i != len; i++) { char c; if (get_user(c, data + i)) @@ -531,7 +554,7 @@ static long pcipcwd_ioctl(struct file *file, unsigned int cmd, return -EFAULT; if (pcipcwd_set_heartbeat(new_heartbeat)) - return -EINVAL; + return -EINVAL; pcipcwd_keepalive(); /* Fall */ @@ -560,7 +583,8 @@ static int pcipcwd_open(struct inode *inode, struct file *file) /* /dev/watchdog can only be opened once */ if (test_and_set_bit(0, &is_active)) { if (debug >= VERBOSE) - printk(KERN_ERR PFX "Attempt to open already opened device.\n"); + printk(KERN_ERR PFX + "Attempt to open already opened device.\n"); return -EBUSY; } @@ -578,7 +602,8 @@ static int pcipcwd_release(struct inode *inode, struct file *file) if (expect_release == 42) { pcipcwd_stop(); } else { - printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n"); + printk(KERN_CRIT PFX + "Unexpected close, not stopping watchdog!\n"); pcipcwd_keepalive(); } expect_release = 0; @@ -621,7 +646,8 @@ static int pcipcwd_temp_release(struct inode *inode, struct file *file) * Notify system */ -static int pcipcwd_notify_sys(struct notifier_block *this, unsigned long code, void *unused) +static int pcipcwd_notify_sys(struct notifier_block *this, unsigned long code, + void *unused) { if (code == SYS_DOWN || code == SYS_HALT) pcipcwd_stop(); /* Turn the WDT off */ @@ -722,34 +748,38 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev, /* If heartbeat = 0 then we use the heartbeat from the dip-switches */ if (heartbeat == 0) - heartbeat = heartbeat_tbl[(pcipcwd_get_option_switches() & 0x07)]; + heartbeat = + heartbeat_tbl[(pcipcwd_get_option_switches() & 0x07)]; - /* Check that the heartbeat value is within it's range ; if not reset to the default */ + /* Check that the heartbeat value is within it's range ; + * if not reset to the default */ if (pcipcwd_set_heartbeat(heartbeat)) { pcipcwd_set_heartbeat(WATCHDOG_HEARTBEAT); - printk(KERN_INFO PFX "heartbeat value must be 0<heartbeat<65536, using %d\n", + printk(KERN_INFO PFX + "heartbeat value must be 0<heartbeat<65536, using %d\n", WATCHDOG_HEARTBEAT); } ret = register_reboot_notifier(&pcipcwd_notifier); if (ret != 0) { - printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n", - ret); + printk(KERN_ERR PFX + "cannot register reboot notifier (err=%d)\n", ret); goto err_out_release_region; } if (pcipcwd_private.supports_temp) { ret = misc_register(&pcipcwd_temp_miscdev); if (ret != 0) { - printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", - TEMP_MINOR, ret); + printk(KERN_ERR PFX "cannot register miscdev on " + "minor=%d (err=%d)\n", TEMP_MINOR, ret); goto err_out_unregister_reboot; } } ret = misc_register(&pcipcwd_miscdev); if (ret != 0) { - printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", + printk(KERN_ERR PFX + "cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); goto err_out_misc_deregister; } diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c index afb089695da..052fe451851 100644 --- a/drivers/watchdog/pcwd_usb.c +++ b/drivers/watchdog/pcwd_usb.c @@ -51,12 +51,11 @@ /* Use our own dbg macro */ #undef dbg -#define dbg(format, arg...) do { if (debug) printk(KERN_DEBUG PFX format "\n" , ## arg); } while (0) - +#define dbg(format, arg...) \ + do { if (debug) printk(KERN_DEBUG PFX format "\n" , ## arg); } while (0) /* Module and Version Information */ #define DRIVER_VERSION "1.02" -#define DRIVER_DATE "21 Jan 2007" #define DRIVER_AUTHOR "Wim Van Sebroeck <wim@iguana.be>" #define DRIVER_DESC "Berkshire USB-PC Watchdog driver" #define DRIVER_LICENSE "GPL" @@ -73,14 +72,18 @@ MODULE_ALIAS_MISCDEV(TEMP_MINOR); module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug enabled or not"); -#define WATCHDOG_HEARTBEAT 0 /* default heartbeat = delay-time from dip-switches */ +#define WATCHDOG_HEARTBEAT 0 /* default heartbeat = + delay-time from dip-switches */ static int heartbeat = WATCHDOG_HEARTBEAT; module_param(heartbeat, int, 0); -MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); +MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. " + "(0<heartbeat<65536 or 0=delay-time from dip-switches, default=" + __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); static int nowayout = WATCHDOG_NOWAYOUT; module_param(nowayout, int, 0); -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); /* The vendor and product id's for the USB-PC Watchdog card */ #define USB_PCWD_VENDOR_ID 0x0c98 @@ -91,20 +94,21 @@ static struct usb_device_id usb_pcwd_table[] = { { USB_DEVICE(USB_PCWD_VENDOR_ID, USB_PCWD_PRODUCT_ID) }, { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, usb_pcwd_table); +MODULE_DEVICE_TABLE(usb, usb_pcwd_table); /* according to documentation max. time to process a command for the USB * watchdog card is 100 or 200 ms, so we give it 250 ms to do it's job */ #define USB_COMMAND_TIMEOUT 250 /* Watchdog's internal commands */ -#define CMD_READ_TEMP 0x02 /* Read Temperature; Re-trigger Watchdog */ +#define CMD_READ_TEMP 0x02 /* Read Temperature; + Re-trigger Watchdog */ #define CMD_TRIGGER CMD_READ_TEMP #define CMD_GET_STATUS 0x04 /* Get Status Information */ #define CMD_GET_FIRMWARE_VERSION 0x08 /* Get Firmware Version */ #define CMD_GET_DIP_SWITCH_SETTINGS 0x0c /* Get Dip Switch Settings */ #define CMD_READ_WATCHDOG_TIMEOUT 0x18 /* Read Current Watchdog Time */ -#define CMD_WRITE_WATCHDOG_TIMEOUT 0x19 /* Write Current Watchdog Time */ +#define CMD_WRITE_WATCHDOG_TIMEOUT 0x19 /* Write Current WatchdogTime */ #define CMD_ENABLE_WATCHDOG 0x30 /* Enable / Disable Watchdog */ #define CMD_DISABLE_WATCHDOG CMD_ENABLE_WATCHDOG @@ -129,23 +133,36 @@ static char expect_release; /* Structure to hold all of our device specific stuff */ struct usb_pcwd_private { - struct usb_device *udev; /* save off the usb device pointer */ - struct usb_interface *interface; /* the interface for this device */ - - 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; @@ -153,7 +170,8 @@ static struct usb_pcwd_private *usb_pcwd_device; static DEFINE_MUTEX(disconnect_mutex); /* local function prototypes */ -static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_device_id *id); +static int usb_pcwd_probe(struct usb_interface *interface, + const struct usb_device_id *id); static void usb_pcwd_disconnect(struct usb_interface *interface); /* usb specific object needed to register this driver with the usb subsystem */ @@ -167,7 +185,8 @@ static struct usb_driver usb_pcwd_driver = { static void usb_pcwd_intr_done(struct urb *urb) { - struct usb_pcwd_private *usb_pcwd = (struct usb_pcwd_private *)urb->context; + struct usb_pcwd_private *usb_pcwd = + (struct usb_pcwd_private *)urb->context; unsigned char *data = usb_pcwd->intr_buffer; int retval; @@ -178,11 +197,13 @@ static void usb_pcwd_intr_done(struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __func__, urb->status); + dbg("%s - urb shutting down with status: %d", __func__, + urb->status); return; /* -EPIPE: should clear the halt */ default: /* error */ - dbg("%s - nonzero urb status received: %d", __func__, urb->status); + dbg("%s - nonzero urb status received: %d", __func__, + urb->status); goto resubmit; } @@ -199,22 +220,23 @@ static void usb_pcwd_intr_done(struct urb *urb) resubmit: retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval) - printk(KERN_ERR PFX "can't resubmit intr, usb_submit_urb failed with result %d\n", - retval); + printk(KERN_ERR PFX "can't resubmit intr, " + "usb_submit_urb failed with result %d\n", retval); } -static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, unsigned char cmd, - unsigned char *msb, unsigned char *lsb) +static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, + unsigned char cmd, unsigned char *msb, unsigned char *lsb) { int got_response, count; unsigned char buf[6]; - /* We will not send any commands if the USB PCWD device does not exist */ + /* We will not send any commands if the USB PCWD device does + * not exist */ if ((!usb_pcwd) || (!usb_pcwd->exists)) return -1; - /* The USB PC Watchdog uses a 6 byte report format. The board currently uses - * only 3 of the six bytes of the report. */ + /* The USB PC Watchdog uses a 6 byte report format. + * The board currently uses only 3 of the six bytes of the report. */ buf[0] = cmd; /* Byte 0 = CMD */ buf[1] = *msb; /* Byte 1 = Data MSB */ buf[2] = *lsb; /* Byte 2 = Data LSB */ @@ -229,12 +251,14 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, unsigned cha HID_REQ_SET_REPORT, HID_DT_REPORT, 0x0200, usb_pcwd->interface_number, buf, sizeof(buf), USB_COMMAND_TIMEOUT) != sizeof(buf)) { - dbg("usb_pcwd_send_command: error in usb_control_msg for cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb); + dbg("usb_pcwd_send_command: error in usb_control_msg for " + "cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb); } /* wait till the usb card processed the command, * with a max. timeout of USB_COMMAND_TIMEOUT */ got_response = 0; - for (count = 0; (count < USB_COMMAND_TIMEOUT) && (!got_response); count++) { + for (count = 0; (count < USB_COMMAND_TIMEOUT) && (!got_response); + count++) { mdelay(1); if (atomic_read(&usb_pcwd->cmd_received)) got_response = 1; @@ -256,10 +280,12 @@ static int usb_pcwd_start(struct usb_pcwd_private *usb_pcwd) int retval; /* Enable Watchdog */ - retval = usb_pcwd_send_command(usb_pcwd, CMD_ENABLE_WATCHDOG, &msb, &lsb); + retval = usb_pcwd_send_command(usb_pcwd, CMD_ENABLE_WATCHDOG, + &msb, &lsb); if ((retval == 0) || (lsb == 0)) { - printk(KERN_ERR PFX "Card did not acknowledge enable attempt\n"); + printk(KERN_ERR PFX + "Card did not acknowledge enable attempt\n"); return -1; } @@ -273,10 +299,12 @@ static int usb_pcwd_stop(struct usb_pcwd_private *usb_pcwd) int retval; /* Disable Watchdog */ - retval = usb_pcwd_send_command(usb_pcwd, CMD_DISABLE_WATCHDOG, &msb, &lsb); + retval = usb_pcwd_send_command(usb_pcwd, CMD_DISABLE_WATCHDOG, + &msb, &lsb); if ((retval == 0) || (lsb != 0)) { - printk(KERN_ERR PFX "Card did not acknowledge disable attempt\n"); + printk(KERN_ERR PFX + "Card did not acknowledge disable attempt\n"); return -1; } @@ -308,7 +336,8 @@ static int usb_pcwd_set_heartbeat(struct usb_pcwd_private *usb_pcwd, int t) return 0; } -static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, int *temperature) +static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, + int *temperature) { unsigned char msb, lsb; @@ -323,7 +352,8 @@ static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, int *temp return 0; } -static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd, int *time_left) +static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd, + int *time_left) { unsigned char msb, lsb; @@ -341,7 +371,7 @@ static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd, int *time_le */ static ssize_t usb_pcwd_write(struct file *file, const char __user *data, - size_t len, loff_t *ppos) + size_t len, loff_t *ppos) { /* See if we got the magic character 'V' and reload the timer */ if (len) { @@ -352,7 +382,8 @@ static ssize_t usb_pcwd_write(struct file *file, const char __user *data, * five months ago... */ expect_release = 0; - /* scan to see whether or not we got the magic character */ + /* scan to see whether or not we got the + * magic character */ for (i = 0; i != len; i++) { char c; if (get_user(c, data + i)) @@ -431,7 +462,7 @@ static long usb_pcwd_ioctl(struct file *file, unsigned int cmd, return -EFAULT; if (usb_pcwd_set_heartbeat(usb_pcwd_device, new_heartbeat)) - return -EINVAL; + return -EINVAL; usb_pcwd_keepalive(usb_pcwd_device); /* Fall */ @@ -475,7 +506,8 @@ static int usb_pcwd_release(struct inode *inode, struct file *file) if (expect_release == 42) { usb_pcwd_stop(usb_pcwd_device); } else { - printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n"); + printk(KERN_CRIT PFX + "Unexpected close, not stopping watchdog!\n"); usb_pcwd_keepalive(usb_pcwd_device); } expect_release = 0; @@ -515,7 +547,8 @@ static int usb_pcwd_temperature_release(struct inode *inode, struct file *file) * Notify system */ -static int usb_pcwd_notify_sys(struct notifier_block *this, unsigned long code, void *unused) +static int usb_pcwd_notify_sys(struct notifier_block *this, unsigned long code, + void *unused) { if (code == SYS_DOWN || code == SYS_HALT) usb_pcwd_stop(usb_pcwd_device); /* Turn the WDT off */ @@ -578,7 +611,8 @@ static inline void usb_pcwd_delete(struct usb_pcwd_private *usb_pcwd) * Called by the usb core when a new device is connected that it thinks * this driver might be interested in. */ -static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_device_id *id) +static int usb_pcwd_probe(struct usb_interface *interface, + const struct usb_device_id *id) { struct usb_device *udev = interface_to_usbdev(interface); struct usb_host_interface *iface_desc; @@ -602,16 +636,15 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi /* check out that we have a HID device */ if (!(iface_desc->desc.bInterfaceClass == USB_CLASS_HID)) { - printk(KERN_ERR PFX "The device isn't a Human Interface Device\n"); + printk(KERN_ERR PFX + "The device isn't a Human Interface Device\n"); return -ENODEV; } /* check out the endpoint: it has to be Interrupt & IN */ endpoint = &iface_desc->endpoint[0].desc; - if (!((endpoint->bEndpointAddress & USB_DIR_IN) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - == USB_ENDPOINT_XFER_INT))) { + if (!usb_endpoint_is_int_in(endpoint)) { /* we didn't find a Interrupt endpoint with direction IN */ printk(KERN_ERR PFX "Couldn't find an INTR & IN endpoint\n"); return -ENODEV; @@ -634,10 +667,12 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi usb_pcwd->udev = udev; usb_pcwd->interface = interface; usb_pcwd->interface_number = iface_desc->desc.bInterfaceNumber; - usb_pcwd->intr_size = (le16_to_cpu(endpoint->wMaxPacketSize) > 8 ? le16_to_cpu(endpoint->wMaxPacketSize) : 8); + usb_pcwd->intr_size = (le16_to_cpu(endpoint->wMaxPacketSize) > 8 ? + le16_to_cpu(endpoint->wMaxPacketSize) : 8); /* set up the memory buffer's */ - usb_pcwd->intr_buffer = usb_buffer_alloc(udev, usb_pcwd->intr_size, GFP_ATOMIC, &usb_pcwd->intr_dma); + usb_pcwd->intr_buffer = usb_buffer_alloc(udev, usb_pcwd->intr_size, + GFP_ATOMIC, &usb_pcwd->intr_dma); if (!usb_pcwd->intr_buffer) { printk(KERN_ERR PFX "Out of memory\n"); goto error; @@ -671,7 +706,8 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi usb_pcwd_stop(usb_pcwd); /* Get the Firmware Version */ - got_fw_rev = usb_pcwd_send_command(usb_pcwd, CMD_GET_FIRMWARE_VERSION, &fw_rev_major, &fw_rev_minor); + got_fw_rev = usb_pcwd_send_command(usb_pcwd, CMD_GET_FIRMWARE_VERSION, + &fw_rev_major, &fw_rev_minor); if (got_fw_rev) sprintf(fw_ver_str, "%u.%02u", fw_rev_major, fw_rev_minor); else @@ -681,9 +717,11 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi fw_ver_str); /* Get switch settings */ - usb_pcwd_send_command(usb_pcwd, CMD_GET_DIP_SWITCH_SETTINGS, &dummy, &option_switches); + usb_pcwd_send_command(usb_pcwd, CMD_GET_DIP_SWITCH_SETTINGS, &dummy, + &option_switches); - printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n", + printk(KERN_INFO PFX "Option switches (0x%02x): " + "Temperature Reset Enable=%s, Power On Delay=%s\n", option_switches, ((option_switches & 0x10) ? "ON" : "OFF"), ((option_switches & 0x08) ? "ON" : "OFF")); @@ -692,30 +730,35 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi if (heartbeat == 0) heartbeat = heartbeat_tbl[(option_switches & 0x07)]; - /* Check that the heartbeat value is within it's range ; if not reset to the default */ + /* Check that the heartbeat value is within it's range ; + * if not reset to the default */ if (usb_pcwd_set_heartbeat(usb_pcwd, heartbeat)) { usb_pcwd_set_heartbeat(usb_pcwd, WATCHDOG_HEARTBEAT); - printk(KERN_INFO PFX "heartbeat value must be 0<heartbeat<65536, using %d\n", + printk(KERN_INFO PFX + "heartbeat value must be 0<heartbeat<65536, using %d\n", WATCHDOG_HEARTBEAT); } retval = register_reboot_notifier(&usb_pcwd_notifier); if (retval != 0) { - printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n", + printk(KERN_ERR PFX + "cannot register reboot notifier (err=%d)\n", retval); goto error; } retval = misc_register(&usb_pcwd_temperature_miscdev); if (retval != 0) { - printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", + printk(KERN_ERR PFX + "cannot register miscdev on minor=%d (err=%d)\n", TEMP_MINOR, retval); goto err_out_unregister_reboot; } retval = misc_register(&usb_pcwd_miscdev); if (retval != 0) { - printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", + printk(KERN_ERR PFX + "cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, retval); goto err_out_misc_deregister; } @@ -801,7 +844,7 @@ static int __init usb_pcwd_init(void) return result; } - printk(KERN_INFO PFX DRIVER_DESC " v" DRIVER_VERSION " (" DRIVER_DATE ")\n"); + printk(KERN_INFO PFX DRIVER_DESC " v" DRIVER_VERSION "\n"); return 0; } diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c index 6d9f3d4a998..64135195f82 100644 --- a/drivers/watchdog/pnx4008_wdt.c +++ b/drivers/watchdog/pnx4008_wdt.c @@ -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 */ diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c index f3553fa40b1..f6cccc9df02 100644 --- a/drivers/watchdog/rc32434_wdt.c +++ b/drivers/watchdog/rc32434_wdt.c @@ -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; } @@ -287,22 +318,28 @@ static int __devexit rc32434_wdt_remove(struct platform_device *pdev) return 0; } -static struct platform_driver rc32434_wdt = { - .probe = rc32434_wdt_probe, - .remove = __devexit_p(rc32434_wdt_remove), - .driver = { - .name = "rc32434_wdt", +static void rc32434_wdt_shutdown(struct platform_device *pdev) +{ + rc32434_wdt_stop(); +} + +static struct platform_driver rc32434_wdt_driver = { + .probe = rc32434_wdt_probe, + .remove = __devexit_p(rc32434_wdt_remove), + .shutdown = rc32434_wdt_shutdown, + .driver = { + .name = "rc32434_wdt", } }; static int __init rc32434_wdt_init(void) { - return platform_driver_register(&rc32434_wdt); + return platform_driver_register(&rc32434_wdt_driver); } static void __exit rc32434_wdt_exit(void) { - platform_driver_unregister(&rc32434_wdt); + platform_driver_unregister(&rc32434_wdt_driver); } module_init(rc32434_wdt_init); diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c index bf92802f2bb..36e221beedc 100644 --- a/drivers/watchdog/rdc321x_wdt.c +++ b/drivers/watchdog/rdc321x_wdt.c @@ -37,7 +37,7 @@ #include <linux/io.h> #include <linux/uaccess.h> -#include <asm/mach-rdc321x/rdc321x_defs.h> +#include <asm/rdc321x_defs.h> #define RDC_WDT_MASK 0x80000000 /* Mask */ #define RDC_WDT_EN 0x00800000 /* Enable bit */ diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c index 09cb1833ea2..1e8f02f440e 100644 --- a/drivers/watchdog/riowd.c +++ b/drivers/watchdog/riowd.c @@ -14,9 +14,8 @@ #include <linux/watchdog.h> #include <linux/of.h> #include <linux/of_device.h> - -#include <asm/io.h> -#include <asm/uaccess.h> +#include <linux/io.h> +#include <linux/uaccess.h> /* RIO uses the NatSemi Super I/O power management logical device @@ -86,8 +85,7 @@ static int riowd_release(struct inode *inode, struct file *filp) return 0; } -static int riowd_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +static long riowd_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { static struct watchdog_info info = { .options = WDIOF_SETTIMEOUT, @@ -147,7 +145,8 @@ static int riowd_ioctl(struct inode *inode, struct file *filp, return 0; } -static ssize_t riowd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) +static ssize_t riowd_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) { struct riowd *p = riowd_device; @@ -160,12 +159,12 @@ static ssize_t riowd_write(struct file *file, const char __user *buf, size_t cou } static const struct file_operations riowd_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .ioctl = riowd_ioctl, - .open = riowd_open, - .write = riowd_write, - .release = riowd_release, + .owner = THIS_MODULE, + .llseek = no_llseek, + .unlocked_ioctl = riowd_ioctl, + .open = riowd_open, + .write = riowd_write, + .release = riowd_release, }; static struct miscdevice riowd_miscdev = { diff --git a/drivers/watchdog/rm9k_wdt.c b/drivers/watchdog/rm9k_wdt.c index f1ae3729a19..cce1982a1b5 100644 --- a/drivers/watchdog/rm9k_wdt.c +++ b/drivers/watchdog/rm9k_wdt.c @@ -59,8 +59,8 @@ static long wdt_gpi_ioctl(struct file *, unsigned int, unsigned long); static int wdt_gpi_notify(struct notifier_block *, unsigned long, void *); static const struct resource *wdt_gpi_get_resource(struct platform_device *, const char *, unsigned int); -static int __init wdt_gpi_probe(struct device *); -static int __exit wdt_gpi_remove(struct device *); +static int __init wdt_gpi_probe(struct platform_device *); +static int __exit wdt_gpi_remove(struct platform_device *); static const char wdt_gpi_name[] = "wdt_gpi"; @@ -346,10 +346,9 @@ static const struct resource *wdt_gpi_get_resource(struct platform_device *pdv, } /* No hotplugging on the platform bus - use __init */ -static int __init wdt_gpi_probe(struct device *dev) +static int __init wdt_gpi_probe(struct platform_device *pdv) { int res; - struct platform_device * const pdv = to_platform_device(dev); const struct resource * const rr = wdt_gpi_get_resource(pdv, WDT_RESOURCE_REGS, IORESOURCE_MEM), @@ -374,7 +373,7 @@ static int __init wdt_gpi_probe(struct device *dev) return res; } -static int __exit wdt_gpi_remove(struct device *dev) +static int __exit wdt_gpi_remove(struct platform_device *dev) { int res; @@ -387,15 +386,13 @@ static int __exit wdt_gpi_remove(struct device *dev) /* Device driver init & exit */ -static struct device_driver wdt_gpi_driver = { - .name = (char *) wdt_gpi_name, - .bus = &platform_bus_type, - .owner = THIS_MODULE, +static struct platform_driver wgt_gpi_driver = { + .driver = { + .name = wdt_gpi_name, + .owner = THIS_MODULE, + }, .probe = wdt_gpi_probe, - .remove = __exit_p(wdt_gpi_remove), - .shutdown = NULL, - .suspend = NULL, - .resume = NULL, + .remove = __devexit_p(wdt_gpi_remove), }; static int __init wdt_gpi_init_module(void) @@ -403,12 +400,12 @@ static int __init wdt_gpi_init_module(void) atomic_set(&opencnt, 1); if (timeout > MAX_TIMEOUT_SECONDS) timeout = MAX_TIMEOUT_SECONDS; - return driver_register(&wdt_gpi_driver); + return platform_driver_register(&wdt_gpi_driver); } static void __exit wdt_gpi_cleanup_module(void) { - driver_unregister(&wdt_gpi_driver); + platform_driver_unregister(&wdt_gpi_driver); } module_init(wdt_gpi_init_module); diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c index e19b4579471..ee1caae4d33 100644 --- a/drivers/watchdog/sa1100_wdt.c +++ b/drivers/watchdog/sa1100_wdt.c @@ -1,8 +1,8 @@ /* * Watchdog driver for the SA11x0/PXA2xx * - * (c) Copyright 2000 Oleg Drokin <green@crimea.edu> - * Based on SoftDog driver by Alan Cox <alan@lxorguk.ukuu.org.uk> + * (c) Copyright 2000 Oleg Drokin <green@crimea.edu> + * Based on SoftDog driver by Alan Cox <alan@lxorguk.ukuu.org.uk> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -15,7 +15,7 @@ * * (c) Copyright 2000 Oleg Drokin <green@crimea.edu> * - * 27/11/2000 Initial release + * 27/11/2000 Initial release */ #include <linux/module.h> #include <linux/moduleparam.h> @@ -30,7 +30,7 @@ #include <linux/timex.h> #ifdef CONFIG_ARCH_PXA -#include <mach/pxa-regs.h> +#include <mach/regs-ost.h> #endif #include <mach/reset.h> diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c index 3266daaaecf..d1c390c7155 100644 --- a/drivers/watchdog/sbc60xxwdt.c +++ b/drivers/watchdog/sbc60xxwdt.c @@ -1,7 +1,7 @@ /* * 60xx Single Board Computer Watchdog Timer driver for Linux 2.2.x * - * Based on acquirewdt.c by Alan Cox. + * Based on acquirewdt.c by Alan Cox. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c index ae74f6bcfa2..b6e6799ec45 100644 --- a/drivers/watchdog/sbc8360.c +++ b/drivers/watchdog/sbc8360.c @@ -4,12 +4,12 @@ * (c) Copyright 2005 Webcon, Inc. * * Based on ib700wdt.c, which is based on advantechwdt.c which is based - * on acquirewdt.c which is based on wdt.c. + * on acquirewdt.c which is based on wdt.c. * * (c) Copyright 2001 Charles Howes <chowes@vsol.net> * - * Based on advantechwdt.c which is based on acquirewdt.c which - * is based on wdt.c. + * Based on advantechwdt.c which is based on acquirewdt.c which + * is based on wdt.c. * * (c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl> * @@ -30,9 +30,9 @@ * * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk> * - * 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com> - * Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT - * Added timeout module option to override default + * 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com> + * Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT + * Added timeout module option to override default * */ diff --git a/drivers/watchdog/sbc_epx_c3.c b/drivers/watchdog/sbc_epx_c3.c index 06553debc7b..e467ddcf796 100644 --- a/drivers/watchdog/sbc_epx_c3.c +++ b/drivers/watchdog/sbc_epx_c3.c @@ -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 */ diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c index 23da3ccd832..b5e19c1820a 100644 --- a/drivers/watchdog/sc1200wdt.c +++ b/drivers/watchdog/sc1200wdt.c @@ -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); diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c index a2b6c1067ec..52b63f2f0da 100644 --- a/drivers/watchdog/sc520_wdt.c +++ b/drivers/watchdog/sc520_wdt.c @@ -1,8 +1,8 @@ /* * AMD Elan SC520 processor Watchdog Timer driver * - * Based on acquirewdt.c by Alan Cox, - * and sbc60xxwdt.c by Jakob Oestergaard <jakob@unthought.net> + * Based on acquirewdt.c by Alan Cox, + * and sbc60xxwdt.c by Jakob Oestergaard <jakob@unthought.net> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -11,7 +11,7 @@ * * The authors do NOT admit liability nor provide warranty for * any of this software. This material is provided "AS-IS" in - * the hope that it may be useful for others. + * the hope that it may be useful for others. * * (c) Copyright 2001 Scott Jennings <linuxdrivers@oro.net> * 9/27 - 2001 [Initial release] @@ -438,6 +438,7 @@ module_init(sc520_wdt_init); module_exit(sc520_wdt_unload); MODULE_AUTHOR("Scott and Bill Jennings"); -MODULE_DESCRIPTION("Driver for watchdog timer in AMD \"Elan\" SC520 uProcessor"); +MODULE_DESCRIPTION( + "Driver for watchdog timer in AMD \"Elan\" SC520 uProcessor"); MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c index 2e56cad77d1..8a1f0bc3e27 100644 --- a/drivers/watchdog/smsc37b787_wdt.c +++ b/drivers/watchdog/smsc37b787_wdt.c @@ -2,7 +2,7 @@ * SMsC 37B787 Watchdog Timer driver for Linux 2.6.x.x * * Based on acquirewdt.c by Alan Cox <alan@lxorguk.ukuu.org.uk> - * and some other existing drivers + * and some other existing drivers * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -11,7 +11,7 @@ * * The authors do NOT admit liability nor provide warranty for * any of this software. This material is provided "AS-IS" in - * the hope that it may be useful for others. + * the hope that it may be useful for others. * * (C) Copyright 2003-2006 Sven Anders <anders@anduras.de> * @@ -22,19 +22,19 @@ * * Theory of operation: * - * A Watchdog Timer (WDT) is a hardware circuit that can - * reset the computer system in case of a software fault. - * You probably knew that already. + * A Watchdog Timer (WDT) is a hardware circuit that can + * reset the computer system in case of a software fault. + * You probably knew that already. * - * Usually a userspace daemon will notify the kernel WDT driver - * via the /dev/watchdog special device file that userspace is - * still alive, at regular intervals. When such a notification - * occurs, the driver will usually tell the hardware watchdog - * that everything is in order, and that the watchdog should wait - * for yet another little while to reset the system. - * If userspace fails (RAM error, kernel bug, whatever), the - * notifications cease to occur, and the hardware watchdog will - * reset the system (causing a reboot) after the timeout occurs. + * Usually a userspace daemon will notify the kernel WDT driver + * via the /dev/watchdog special device file that userspace is + * still alive, at regular intervals. When such a notification + * occurs, the driver will usually tell the hardware watchdog + * that everything is in order, and that the watchdog should wait + * for yet another little while to reset the system. + * If userspace fails (RAM error, kernel bug, whatever), the + * notifications cease to occur, and the hardware watchdog will + * reset the system (causing a reboot) after the timeout occurs. * * Create device with: * mknod /dev/watchdog c 10 130 @@ -485,7 +485,7 @@ static long wb_smsc_wdt_ioctl(struct file *file, case WDIOC_GETTIMEOUT: new_timeout = timeout; if (unit == UNIT_MINUTE) - new_timeout *= 60; + new_timeout *= 60; return put_user(new_timeout, uarg.i); default: return -ENOTTY; diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c index 7204f966211..ebcc9cea5e9 100644 --- a/drivers/watchdog/softdog.c +++ b/drivers/watchdog/softdog.c @@ -1,7 +1,8 @@ /* * SoftDog 0.07: A Software Watchdog Device * - * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, All Rights Reserved. + * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, + * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -32,7 +33,7 @@ * Added WDIOC_GETTIMEOUT and WDIOC_SETTIMOUT. * * 20020530 Joel Becker <joel.becker@oracle.com> - * Added Matt Domsch's nowayout module option. + * Added Matt Domsch's nowayout module option. */ #include <linux/module.h> diff --git a/drivers/watchdog/w83697hf_wdt.c b/drivers/watchdog/w83697hf_wdt.c index 3c7aa412b1f..a9c7f352fcb 100644 --- a/drivers/watchdog/w83697hf_wdt.c +++ b/drivers/watchdog/w83697hf_wdt.c @@ -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); diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c index ada8ad82d99..883b5f79673 100644 --- a/drivers/watchdog/w83697ug_wdt.c +++ b/drivers/watchdog/w83697ug_wdt.c @@ -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) { diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c index 2525da5080c..0560182a1d0 100644 --- a/drivers/watchdog/w83977f_wdt.c +++ b/drivers/watchdog/w83977f_wdt.c @@ -426,7 +426,7 @@ static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return -EFAULT; if (wdt_set_timeout(new_timeout)) - return -EINVAL; + return -EINVAL; wdt_keepalive(); /* Fall */ diff --git a/drivers/watchdog/wd501p.h b/drivers/watchdog/wd501p.h index db34853c28a..0e3a497d562 100644 --- a/drivers/watchdog/wd501p.h +++ b/drivers/watchdog/wd501p.h @@ -11,9 +11,9 @@ * * http://www.cymru.net * - * This driver is provided under the GNU General Public License, incorporated - * herein by reference. The driver is provided without warranty or - * support. + * This driver is provided under the GNU General Public License, + * incorporated herein by reference. The driver is provided without + * warranty or support. * * Release 0.04. * @@ -39,13 +39,13 @@ /* programmable outputs: */ #define WDT_PROGOUT (io+15) /* wr=enable, rd=disable */ - /* FAN 501 500 */ -#define WDC_SR_WCCR 1 /* Active low */ /* X X X */ -#define WDC_SR_TGOOD 2 /* X X - */ -#define WDC_SR_ISOI0 4 /* X X X */ -#define WDC_SR_ISII1 8 /* X X X */ -#define WDC_SR_FANGOOD 16 /* X - - */ -#define WDC_SR_PSUOVER 32 /* Active low */ /* X X - */ -#define WDC_SR_PSUUNDR 64 /* Active low */ /* X X - */ -#define WDC_SR_IRQ 128 /* Active low */ /* X X X */ + /* FAN 501 500 */ +#define WDC_SR_WCCR 1 /* Active low */ /* X X X */ +#define WDC_SR_TGOOD 2 /* X X - */ +#define WDC_SR_ISOI0 4 /* X X X */ +#define WDC_SR_ISII1 8 /* X X X */ +#define WDC_SR_FANGOOD 16 /* X - - */ +#define WDC_SR_PSUOVER 32 /* Active low */ /* X X - */ +#define WDC_SR_PSUUNDR 64 /* Active low */ /* X X - */ +#define WDC_SR_IRQ 128 /* Active low */ /* X X X */ diff --git a/drivers/watchdog/wdt.c b/drivers/watchdog/wdt.c index eddb9187e7b..3bbefe9a263 100644 --- a/drivers/watchdog/wdt.c +++ b/drivers/watchdog/wdt.c @@ -1,5 +1,5 @@ /* - * Industrial Computer Source WDT500/501 driver + * Industrial Computer Source WDT501 driver * * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>, * All Rights Reserved. @@ -82,14 +82,16 @@ MODULE_PARM_DESC(io, "WDT io port (default=0x240)"); module_param(irq, int, 0); MODULE_PARM_DESC(irq, "WDT irq (default=11)"); -#ifdef CONFIG_WDT_501 /* Support for the Fan Tachometer on the WDT501-P */ static int tachometer; - module_param(tachometer, int, 0); MODULE_PARM_DESC(tachometer, "WDT501-P Fan Tachometer support (0=disable, default=0)"); -#endif /* CONFIG_WDT_501 */ + +static int type = 500; +module_param(type, int, 0); +MODULE_PARM_DESC(type, + "WDT501-P Card type (500 or 501 , default=500)"); /* * Programming support @@ -158,7 +160,7 @@ static int wdt_stop(void) * reloading the cascade counter. */ -static int wdt_ping(void) +static void wdt_ping(void) { unsigned long flags; spin_lock_irqsave(&wdt_lock, flags); @@ -169,7 +171,6 @@ static int wdt_ping(void) wdt_ctr_load(1, wd_heartbeat); /* Heartbeat */ outb_p(0, WDT_DC); /* Enable watchdog */ spin_unlock_irqrestore(&wdt_lock, flags); - return 0; } /** @@ -193,7 +194,6 @@ static int wdt_set_heartbeat(int t) /** * wdt_get_status: - * @status: the new status. * * Extract the status information from a WDT watchdog device. There are * several board variants so we have to know which bits are valid. Some @@ -202,36 +202,35 @@ static int wdt_set_heartbeat(int t) * we then map the bits onto the status ioctl flags. */ -static int wdt_get_status(int *status) +static int wdt_get_status(void) { unsigned char new_status; + int status = 0; unsigned long flags; spin_lock_irqsave(&wdt_lock, flags); new_status = inb_p(WDT_SR); spin_unlock_irqrestore(&wdt_lock, flags); - *status = 0; if (new_status & WDC_SR_ISOI0) - *status |= WDIOF_EXTERN1; + status |= WDIOF_EXTERN1; if (new_status & WDC_SR_ISII1) - *status |= WDIOF_EXTERN2; -#ifdef CONFIG_WDT_501 - if (!(new_status & WDC_SR_TGOOD)) - *status |= WDIOF_OVERHEAT; - if (!(new_status & WDC_SR_PSUOVER)) - *status |= WDIOF_POWEROVER; - if (!(new_status & WDC_SR_PSUUNDR)) - *status |= WDIOF_POWERUNDER; - if (tachometer) { - if (!(new_status & WDC_SR_FANGOOD)) - *status |= WDIOF_FANFAULT; + status |= WDIOF_EXTERN2; + if (type == 501) { + if (!(new_status & WDC_SR_TGOOD)) + status |= WDIOF_OVERHEAT; + if (!(new_status & WDC_SR_PSUOVER)) + status |= WDIOF_POWEROVER; + if (!(new_status & WDC_SR_PSUUNDR)) + status |= WDIOF_POWERUNDER; + if (tachometer) { + if (!(new_status & WDC_SR_FANGOOD)) + status |= WDIOF_FANFAULT; + } } -#endif /* CONFIG_WDT_501 */ - return 0; + return status; } -#ifdef CONFIG_WDT_501 /** * wdt_get_temperature: * @@ -239,7 +238,7 @@ static int wdt_get_status(int *status) * farenheit. It was designed by an imperial measurement luddite. */ -static int wdt_get_temperature(int *temperature) +static int wdt_get_temperature(void) { unsigned short c; unsigned long flags; @@ -247,10 +246,18 @@ static int wdt_get_temperature(int *temperature) spin_lock_irqsave(&wdt_lock, flags); c = inb_p(WDT_RT); spin_unlock_irqrestore(&wdt_lock, flags); - *temperature = (c * 11 / 15) + 7; - return 0; + return (c * 11 / 15) + 7; +} + +static void wdt_decode_501(int status) +{ + if (!(status & WDC_SR_TGOOD)) + printk(KERN_CRIT "Overheat alarm.(%d)\n", inb_p(WDT_RT)); + if (!(status & WDC_SR_PSUOVER)) + printk(KERN_CRIT "PSU over voltage.\n"); + if (!(status & WDC_SR_PSUUNDR)) + printk(KERN_CRIT "PSU under voltage.\n"); } -#endif /* CONFIG_WDT_501 */ /** * wdt_interrupt: @@ -275,18 +282,13 @@ static irqreturn_t wdt_interrupt(int irq, void *dev_id) printk(KERN_CRIT "WDT status %d\n", status); -#ifdef CONFIG_WDT_501 - if (!(status & WDC_SR_TGOOD)) - printk(KERN_CRIT "Overheat alarm.(%d)\n", inb_p(WDT_RT)); - if (!(status & WDC_SR_PSUOVER)) - printk(KERN_CRIT "PSU over voltage.\n"); - if (!(status & WDC_SR_PSUUNDR)) - printk(KERN_CRIT "PSU under voltage.\n"); - if (tachometer) { - if (!(status & WDC_SR_FANGOOD)) - printk(KERN_CRIT "Possible fan fault.\n"); + if (type == 501) { + wdt_decode_501(status); + if (tachometer) { + if (!(status & WDC_SR_FANGOOD)) + printk(KERN_CRIT "Possible fan fault.\n"); + } } -#endif /* CONFIG_WDT_501 */ if (!(status & WDC_SR_WCCR)) { #ifdef SOFTWARE_REBOOT #ifdef ONLY_TESTING @@ -366,17 +368,18 @@ static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) /* Add options according to the card we have */ ident.options |= (WDIOF_EXTERN1|WDIOF_EXTERN2); -#ifdef CONFIG_WDT_501 - ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER|WDIOF_POWEROVER); - if (tachometer) - ident.options |= WDIOF_FANFAULT; -#endif /* CONFIG_WDT_501 */ + if (type == 501) { + ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER| + WDIOF_POWEROVER); + if (tachometer) + ident.options |= WDIOF_FANFAULT; + } switch (cmd) { case WDIOC_GETSUPPORT: return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0; case WDIOC_GETSTATUS: - wdt_get_status(&status); + status = wdt_get_status(); return put_user(status, p); case WDIOC_GETBOOTSTATUS: return put_user(0, p); @@ -446,7 +449,6 @@ static int wdt_release(struct inode *inode, struct file *file) return 0; } -#ifdef CONFIG_WDT_501 /** * wdt_temp_read: * @file: file handle to the watchdog board @@ -461,10 +463,7 @@ static int wdt_release(struct inode *inode, struct file *file) static ssize_t wdt_temp_read(struct file *file, char __user *buf, size_t count, loff_t *ptr) { - int temperature; - - if (wdt_get_temperature(&temperature)) - return -EFAULT; + int temperature = wdt_get_temperature(); if (copy_to_user(buf, &temperature, 1)) return -EFAULT; @@ -497,7 +496,6 @@ static int wdt_temp_release(struct inode *inode, struct file *file) { return 0; } -#endif /* CONFIG_WDT_501 */ /** * notify_sys: @@ -539,7 +537,6 @@ static struct miscdevice wdt_miscdev = { .fops = &wdt_fops, }; -#ifdef CONFIG_WDT_501 static const struct file_operations wdt_temp_fops = { .owner = THIS_MODULE, .llseek = no_llseek, @@ -553,7 +550,6 @@ static struct miscdevice temp_miscdev = { .name = "temperature", .fops = &wdt_temp_fops, }; -#endif /* CONFIG_WDT_501 */ /* * The WDT card needs to learn about soft shutdowns in order to @@ -577,9 +573,8 @@ static struct notifier_block wdt_notifier = { static void __exit wdt_exit(void) { misc_deregister(&wdt_miscdev); -#ifdef CONFIG_WDT_501 - misc_deregister(&temp_miscdev); -#endif /* CONFIG_WDT_501 */ + if (type == 501) + misc_deregister(&temp_miscdev); unregister_reboot_notifier(&wdt_notifier); free_irq(irq, NULL); release_region(io, 8); @@ -597,12 +592,17 @@ static int __init wdt_init(void) { int ret; + if (type != 500 && type != 501) { + printk(KERN_ERR "wdt: unknown card type '%d'.\n", type); + return -ENODEV; + } + /* Check that the heartbeat value is within it's range; if not reset to the default */ if (wdt_set_heartbeat(heartbeat)) { wdt_set_heartbeat(WD_TIMO); - printk(KERN_INFO "wdt: heartbeat value must be 0 < heartbeat < 65536, using %d\n", - WD_TIMO); + printk(KERN_INFO "wdt: heartbeat value must be " + "0 < heartbeat < 65536, using %d\n", WD_TIMO); } if (!request_region(io, 8, "wdt501p")) { @@ -625,15 +625,14 @@ static int __init wdt_init(void) goto outirq; } -#ifdef CONFIG_WDT_501 - ret = misc_register(&temp_miscdev); - if (ret) { - printk(KERN_ERR - "wdt: cannot register miscdev on minor=%d (err=%d)\n", - TEMP_MINOR, ret); - goto outrbt; + if (type == 501) { + ret = misc_register(&temp_miscdev); + if (ret) { + printk(KERN_ERR "wdt: cannot register miscdev " + "on minor=%d (err=%d)\n", TEMP_MINOR, ret); + goto outrbt; + } } -#endif /* CONFIG_WDT_501 */ ret = misc_register(&wdt_miscdev); if (ret) { @@ -643,28 +642,25 @@ static int __init wdt_init(void) goto outmisc; } - ret = 0; - printk(KERN_INFO "WDT500/501-P driver 0.10 at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n", + printk(KERN_INFO "WDT500/501-P driver 0.10 " + "at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n", io, irq, heartbeat, nowayout); -#ifdef CONFIG_WDT_501 - printk(KERN_INFO "wdt: Fan Tachometer is %s\n", + if (type == 501) + printk(KERN_INFO "wdt: Fan Tachometer is %s\n", (tachometer ? "Enabled" : "Disabled")); -#endif /* CONFIG_WDT_501 */ - -out: - return ret; + return 0; outmisc: -#ifdef CONFIG_WDT_501 - misc_deregister(&temp_miscdev); + if (type == 501) + misc_deregister(&temp_miscdev); outrbt: -#endif /* CONFIG_WDT_501 */ unregister_reboot_notifier(&wdt_notifier); outirq: free_irq(irq, NULL); outreg: release_region(io, 8); - goto out; +out: + return ret; } module_init(wdt_init); diff --git a/drivers/watchdog/wdt977.c b/drivers/watchdog/wdt977.c index 60e28d49ff5..90ef70eb47d 100644 --- a/drivers/watchdog/wdt977.c +++ b/drivers/watchdog/wdt977.c @@ -401,7 +401,7 @@ static long wdt977_ioctl(struct file *file, unsigned int cmd, return -EFAULT; if (wdt977_set_timeout(new_timeout)) - return -EINVAL; + return -EINVAL; wdt977_keepalive(); /* Fall */ |