From 9b901ee0cb007eb4e2ee056e5b1c5c2837d53bdb Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 19 Jun 2009 09:32:57 +0000 Subject: [PATCH] [WATCHDOG] wdt_pci.c: remove #ifdef CONFIG_WDT_501_PCI Change the wdt_pci.c watchdog driver so that the code is the same for both the PCI-WDT500 as the PCI-WDT501 card. The selection of the card is now being done via the module parameter: 'type' instead of the config option CONFIG_WDT_501_PCI. Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/Kconfig | 18 ++---- drivers/watchdog/wdt_pci.c | 122 ++++++++++++++++++------------------- 2 files changed, 66 insertions(+), 74 deletions(-) diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index e8d45b6ccef8..b1ccc04f3c9a 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -1007,24 +1007,16 @@ config WDTPCI ---help--- If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. - To compile this driver as a module, choose M here: the - module will be called wdt_pci. - -config WDT_501_PCI - bool "PCI-WDT501 features" - depends on WDTPCI - 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 PCI-WDT501 watchdog board - installed. + If you have a PCI-WDT501 watchdog board then you can enable the + temperature sensor by setting the type parameter to 501. If you want to enable the Fan Tachometer on the PCI-WDT501, then you can do this via the tachometer parameter. Only do this if you have a fan tachometer actually set up. + To compile this driver as a module, choose M here: the + module will be called wdt_pci. + # # USB-based Watchdog Cards # diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c index c45839a4a34d..7a1bdc7c95a9 100644 --- a/drivers/watchdog/wdt_pci.c +++ b/drivers/watchdog/wdt_pci.c @@ -2,7 +2,7 @@ * Industrial Computer Source PCI-WDT500/501 driver * * (c) Copyright 1996-1997 Alan Cox , - * 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 @@ -99,14 +99,16 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); -#ifdef CONFIG_WDT_501_PCI /* Support for the Fan Tachometer on the PCI-WDT501 */ static int tachometer; - module_param(tachometer, int, 0); MODULE_PARM_DESC(tachometer, - "PCI-WDT501 Fan Tachometer support (0=disable, default=0)"); -#endif /* CONFIG_WDT_501_PCI */ + "PCI-WDT501 Fan Tachometer support (0=disable, default=0)"); + +static int type = 500; +module_param(type, int, 0); +MODULE_PARM_DESC(type, + "PCI-WDT501 Card type (500 or 501 , default=500)"); /* * Programming support @@ -266,22 +268,21 @@ static int wdtpci_get_status(int *status) *status |= WDIOF_EXTERN1; if (new_status & WDC_SR_ISII1) *status |= WDIOF_EXTERN2; -#ifdef CONFIG_WDT_501_PCI - 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; + 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_PCI */ return 0; } -#ifdef CONFIG_WDT_501_PCI /** * wdtpci_get_temperature: * @@ -300,7 +301,6 @@ static int wdtpci_get_temperature(int *temperature) *temperature = (c * 11 / 15) + 7; return 0; } -#endif /* CONFIG_WDT_501_PCI */ /** * wdtpci_interrupt: @@ -327,22 +327,22 @@ static irqreturn_t wdtpci_interrupt(int irq, void *dev_id) printk(KERN_CRIT PFX "status %d\n", status); -#ifdef CONFIG_WDT_501_PCI - if (!(status & WDC_SR_TGOOD)) { - u8 alarm = inb(WDT_RT); - printk(KERN_CRIT PFX "Overheat alarm.(%d)\n", alarm); - udelay(8); + if (type == 501) { + if (!(status & WDC_SR_TGOOD)) { + printk(KERN_CRIT PFX "Overheat alarm.(%d)\n", + inb(WDT_RT)); + udelay(8); + } + if (!(status & WDC_SR_PSUOVER)) + printk(KERN_CRIT PFX "PSU over voltage.\n"); + if (!(status & WDC_SR_PSUUNDR)) + printk(KERN_CRIT PFX "PSU under voltage.\n"); + if (tachometer) { + if (!(status & WDC_SR_FANGOOD)) + printk(KERN_CRIT PFX "Possible fan fault.\n"); + } } - if (!(status & WDC_SR_PSUOVER)) - printk(KERN_CRIT PFX "PSU over voltage.\n"); - if (!(status & WDC_SR_PSUUNDR)) - printk(KERN_CRIT PFX "PSU under voltage.\n"); - if (tachometer) { - if (!(status & WDC_SR_FANGOOD)) - printk(KERN_CRIT PFX "Possible fan fault.\n"); - } -#endif /* CONFIG_WDT_501_PCI */ - if (!(status&WDC_SR_WCCR)) { + if (!(status & WDC_SR_WCCR)) { #ifdef SOFTWARE_REBOOT #ifdef ONLY_TESTING printk(KERN_CRIT PFX "Would Reboot.\n"); @@ -371,12 +371,13 @@ static irqreturn_t wdtpci_interrupt(int irq, void *dev_id) */ static ssize_t wdtpci_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) + size_t count, loff_t *ppos) { if (count) { if (!nowayout) { size_t i; + /* In case it was set long ago */ expect_close = 0; for (i = 0; i != count; i++) { @@ -406,10 +407,10 @@ static ssize_t wdtpci_write(struct file *file, const char __user *buf, static long wdtpci_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - int new_heartbeat; - int status; void __user *argp = (void __user *)arg; int __user *p = argp; + int new_heartbeat; + int status; static struct watchdog_info ident = { .options = WDIOF_SETTIMEOUT| @@ -421,11 +422,12 @@ static long wdtpci_ioctl(struct file *file, unsigned int cmd, /* Add options according to the card we have */ ident.options |= (WDIOF_EXTERN1|WDIOF_EXTERN2); -#ifdef CONFIG_WDT_501_PCI - ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER|WDIOF_POWEROVER); - if (tachometer) - ident.options |= WDIOF_FANFAULT; -#endif /* CONFIG_WDT_501_PCI */ + if (type == 501) { + ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER| + WDIOF_POWEROVER); + if (tachometer) + ident.options |= WDIOF_FANFAULT; + } switch (cmd) { case WDIOC_GETSUPPORT: @@ -503,7 +505,6 @@ static int wdtpci_release(struct inode *inode, struct file *file) return 0; } -#ifdef CONFIG_WDT_501_PCI /** * wdtpci_temp_read: * @file: file handle to the watchdog board @@ -554,7 +555,6 @@ static int wdtpci_temp_release(struct inode *inode, struct file *file) { return 0; } -#endif /* CONFIG_WDT_501_PCI */ /** * notify_sys: @@ -596,7 +596,6 @@ static struct miscdevice wdtpci_miscdev = { .fops = &wdtpci_fops, }; -#ifdef CONFIG_WDT_501_PCI static const struct file_operations wdtpci_temp_fops = { .owner = THIS_MODULE, .llseek = no_llseek, @@ -610,7 +609,6 @@ static struct miscdevice temp_miscdev = { .name = "temperature", .fops = &wdtpci_temp_fops, }; -#endif /* CONFIG_WDT_501_PCI */ /* * The WDT card needs to learn about soft shutdowns in order to @@ -633,6 +631,11 @@ static int __devinit wdtpci_init_one(struct pci_dev *dev, return -ENODEV; } + if (type != 500 && type != 501) { + printk(KERN_ERR PFX "unknown card type '%d'.\n", type); + return -ENODEV; + } + if (pci_enable_device(dev)) { printk(KERN_ERR PFX "Not possible to enable PCI Device\n"); return -ENODEV; @@ -678,15 +681,15 @@ static int __devinit wdtpci_init_one(struct pci_dev *dev, goto out_irq; } -#ifdef CONFIG_WDT_501_PCI - ret = misc_register(&temp_miscdev); - if (ret) { - printk(KERN_ERR PFX + if (type == 501) { + ret = misc_register(&temp_miscdev); + if (ret) { + printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", - TEMP_MINOR, ret); - goto out_rbt; + TEMP_MINOR, ret); + goto out_rbt; + } } -#endif /* CONFIG_WDT_501_PCI */ ret = misc_register(&wdtpci_miscdev); if (ret) { @@ -698,20 +701,18 @@ static int __devinit wdtpci_init_one(struct pci_dev *dev, printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n", heartbeat, nowayout); -#ifdef CONFIG_WDT_501_PCI - 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_PCI */ ret = 0; out: return ret; out_misc: -#ifdef CONFIG_WDT_501_PCI - misc_deregister(&temp_miscdev); + if (type == 501) + misc_deregister(&temp_miscdev); out_rbt: -#endif /* CONFIG_WDT_501_PCI */ unregister_reboot_notifier(&wdtpci_notifier); out_irq: free_irq(irq, &wdtpci_miscdev); @@ -728,9 +729,8 @@ static void __devexit wdtpci_remove_one(struct pci_dev *pdev) /* here we assume only one device will ever have * been picked up and registered by probe function */ misc_deregister(&wdtpci_miscdev); -#ifdef CONFIG_WDT_501_PCI - misc_deregister(&temp_miscdev); -#endif /* CONFIG_WDT_501_PCI */ + if (type == 501) + misc_deregister(&temp_miscdev); unregister_reboot_notifier(&wdtpci_notifier); free_irq(irq, &wdtpci_miscdev); release_region(io, 16);