diff options
Diffstat (limited to 'drivers/watchdog')
101 files changed, 1765 insertions, 2810 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 0e7366d..3709624 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -55,6 +55,7 @@ comment "Watchdog Device Drivers" config SOFT_WATCHDOG tristate "Software watchdog" + select WATCHDOG_CORE help A software monitoring watchdog. This will fail to reboot your system from some situations that the hardware watchdog will recover @@ -74,6 +75,7 @@ config WM831X_WATCHDOG config WM8350_WATCHDOG tristate "WM8350 watchdog" depends on MFD_WM8350 + select WATCHDOG_CORE help Support for the watchdog in the WM8350 AudioPlus PMIC. When the watchdog triggers the system will be reset. @@ -217,6 +219,7 @@ config MPCORE_WATCHDOG config EP93XX_WATCHDOG tristate "EP93xx Watchdog" depends on ARCH_EP93XX + select WATCHDOG_CORE help Say Y here if to include support for the watchdog timer embedded in the Cirrus Logic EP93xx family of devices. @@ -234,6 +237,7 @@ config OMAP_WATCHDOG config PNX4008_WATCHDOG tristate "PNX4008 and LPC32XX Watchdog" depends on ARCH_PNX4008 || ARCH_LPC32XX + select WATCHDOG_CORE help Say Y here if to include support for the watchdog timer in the PNX4008 or LPC32XX processor. @@ -283,6 +287,7 @@ config COH901327_WATCHDOG bool "ST-Ericsson COH 901 327 watchdog" depends on ARCH_U300 default y if MACH_U300 + select WATCHDOG_CORE help Say Y here to include Watchdog timer support for the watchdog embedded into the ST-Ericsson U300 series platforms. @@ -328,6 +333,7 @@ config TS72XX_WATCHDOG config MAX63XX_WATCHDOG tristate "Max63xx watchdog" depends on ARM && HAS_IOMEM + select WATCHDOG_CORE help Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. @@ -955,6 +961,7 @@ config INDYDOG config JZ4740_WDT tristate "Ingenic jz4740 SoC hardware watchdog" depends on MACH_JZ4740 + select WATCHDOG_CORE help Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. @@ -996,6 +1003,7 @@ config AR7_WDT config TXX9_WDT tristate "Toshiba TXx9 Watchdog Timer" depends on CPU_TX39XX || CPU_TX49XX + select WATCHDOG_CORE help Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c index b6a2b58..4397881 100644 --- a/drivers/watchdog/acquirewdt.c +++ b/drivers/watchdog/acquirewdt.c @@ -52,6 +52,8 @@ * Includes, defines, variables, module parameters, ... */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + /* Includes */ #include <linux/module.h> /* For module specific items */ #include <linux/moduleparam.h> /* For new moduleparam's */ @@ -70,7 +72,6 @@ /* Module information */ #define DRV_NAME "acquirewdt" -#define PFX DRV_NAME ": " #define WATCHDOG_NAME "Acquire WDT" /* There is no way to see what the correct time-out period is */ #define WATCHDOG_HEARTBEAT 0 @@ -92,8 +93,8 @@ static int wdt_start = 0x443; module_param(wdt_start, int, 0); MODULE_PARM_DESC(wdt_start, "Acquire WDT 'start' io port (default 0x443)"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -208,8 +209,7 @@ static int acq_close(struct inode *inode, struct file *file) if (expect_close == 42) { acq_stop(); } else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); acq_keepalive(); } clear_bit(0, &acq_is_open); @@ -246,27 +246,24 @@ static int __devinit acq_probe(struct platform_device *dev) if (wdt_stop != wdt_start) { if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) { - printk(KERN_ERR PFX - "I/O address 0x%04x already in use\n", wdt_stop); + pr_err("I/O address 0x%04x already in use\n", wdt_stop); ret = -EIO; goto out; } } if (!request_region(wdt_start, 1, WATCHDOG_NAME)) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - wdt_start); + pr_err("I/O address 0x%04x already in use\n", wdt_start); ret = -EIO; goto unreg_stop; } ret = misc_register(&acq_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto unreg_regions; } - printk(KERN_INFO PFX "initialized. (nowayout=%d)\n", nowayout); + pr_info("initialized. (nowayout=%d)\n", nowayout); return 0; unreg_regions: @@ -308,8 +305,7 @@ static int __init acq_init(void) { int err; - printk(KERN_INFO - "WDT driver for Acquire single board computer initialising.\n"); + pr_info("WDT driver for Acquire single board computer initialising\n"); err = platform_driver_register(&acquirewdt_driver); if (err) @@ -332,7 +328,7 @@ static void __exit acq_exit(void) { platform_device_unregister(acq_platform_device); platform_driver_unregister(&acquirewdt_driver); - printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); + pr_info("Watchdog Module Unloaded\n"); } module_init(acq_init); diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c index 4d40965..72e8105 100644 --- a/drivers/watchdog/advantechwdt.c +++ b/drivers/watchdog/advantechwdt.c @@ -28,6 +28,8 @@ * add wdt_start and wdt_stop as parameters. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -43,7 +45,6 @@ #include <asm/system.h> #define DRV_NAME "advantechwdt" -#define PFX DRV_NAME ": " #define WATCHDOG_NAME "Advantech WDT" #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ @@ -77,8 +78,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1<= timeout <=63, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) "."); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -207,8 +208,7 @@ static int advwdt_close(struct inode *inode, struct file *file) if (adv_expect_close == 42) { advwdt_disable(); } else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); advwdt_ping(); } clear_bit(0, &advwdt_is_open); @@ -245,18 +245,15 @@ static int __devinit advwdt_probe(struct platform_device *dev) if (wdt_stop != wdt_start) { if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) { - printk(KERN_ERR PFX - "I/O address 0x%04x already in use\n", - wdt_stop); + pr_err("I/O address 0x%04x already in use\n", + wdt_stop); ret = -EIO; goto out; } } if (!request_region(wdt_start, 1, WATCHDOG_NAME)) { - printk(KERN_ERR PFX - "I/O address 0x%04x already in use\n", - wdt_start); + pr_err("I/O address 0x%04x already in use\n", wdt_start); ret = -EIO; goto unreg_stop; } @@ -265,18 +262,16 @@ static int __devinit advwdt_probe(struct platform_device *dev) * if not reset to the default */ if (advwdt_set_heartbeat(timeout)) { advwdt_set_heartbeat(WATCHDOG_TIMEOUT); - printk(KERN_INFO PFX - "timeout value must be 1<=x<=63, using %d\n", timeout); + pr_info("timeout value must be 1<=x<=63, using %d\n", timeout); } ret = misc_register(&advwdt_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto unreg_regions; } - printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n", + pr_info("initialized. timeout=%d sec (nowayout=%d)\n", timeout, nowayout); out: return ret; @@ -318,8 +313,7 @@ static int __init advwdt_init(void) { int err; - printk(KERN_INFO - "WDT driver for Advantech single board computer initialising.\n"); + pr_info("WDT driver for Advantech single board computer initialising\n"); err = platform_driver_register(&advwdt_driver); if (err) @@ -343,7 +337,7 @@ static void __exit advwdt_exit(void) { platform_device_unregister(advwdt_platform_device); platform_driver_unregister(&advwdt_driver); - printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); + pr_info("Watchdog Module Unloaded\n"); } module_init(advwdt_init); diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c index f16dcbd..41b8493 100644 --- a/drivers/watchdog/alim1535_wdt.c +++ b/drivers/watchdog/alim1535_wdt.c @@ -7,6 +7,8 @@ * 2 of the License, or (at your option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -22,7 +24,6 @@ #include <linux/io.h> #define WATCHDOG_NAME "ALi_M1535" -#define PFX WATCHDOG_NAME ": " #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ /* internal variables */ @@ -39,8 +40,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. (0 < timeout < 18000, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -268,8 +269,7 @@ static int ali_release(struct inode *inode, struct file *file) if (ali_expect_release == 42) ali_stop(); else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); ali_keepalive(); } clear_bit(0, &ali_is_open); @@ -399,9 +399,8 @@ static int __init watchdog_init(void) if not reset to the default */ if (timeout < 1 || timeout >= 18000) { timeout = WATCHDOG_TIMEOUT; - printk(KERN_INFO PFX - "timeout value must be 0 < timeout < 18000, using %d\n", - timeout); + pr_info("timeout value must be 0 < timeout < 18000, using %d\n", + timeout); } /* Calculate the watchdog's timeout */ @@ -409,20 +408,18 @@ static int __init watchdog_init(void) ret = register_reboot_notifier(&ali_notifier); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); goto out; } ret = misc_register(&ali_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto unreg_reboot; } - printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n", + pr_info("initialized. timeout=%d sec (nowayout=%d)\n", timeout, nowayout); out: diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c index 46f4b85..b9e9558 100644 --- a/drivers/watchdog/alim7101_wdt.c +++ b/drivers/watchdog/alim7101_wdt.c @@ -19,6 +19,8 @@ * -- Mike Waychison <michael.waychison@sun.com> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -36,9 +38,6 @@ #include <asm/system.h> -#define OUR_NAME "alim7101_wdt" -#define PFX OUR_NAME ": " - #define WDT_ENABLE 0x9C #define WDT_DISABLE 0x8C @@ -79,8 +78,8 @@ static unsigned long wdt_is_open; static char wdt_expect_close; static struct pci_dev *alim7101_pmu; -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -112,8 +111,7 @@ static void wdt_timer_ping(unsigned long data) ALI_7101_GPIO_O, tmp & ~0x20); } } else { - printk(KERN_WARNING PFX - "Heartbeat lost! Will not ping the watchdog\n"); + pr_warn("Heartbeat lost! Will not ping the watchdog\n"); } /* Re-set the timer interval */ mod_timer(&timer, jiffies + WDT_INTERVAL); @@ -162,7 +160,7 @@ static void wdt_startup(void) /* Start the timer */ mod_timer(&timer, jiffies + WDT_INTERVAL); - printk(KERN_INFO PFX "Watchdog timer is now enabled.\n"); + pr_info("Watchdog timer is now enabled\n"); } static void wdt_turnoff(void) @@ -170,7 +168,7 @@ static void wdt_turnoff(void) /* Stop the timer */ del_timer_sync(&timer); wdt_change(WDT_DISABLE); - printk(KERN_INFO PFX "Watchdog timer is now disabled...\n"); + pr_info("Watchdog timer is now disabled...\n"); } static void wdt_keepalive(void) @@ -226,8 +224,7 @@ static int fop_close(struct inode *inode, struct file *file) wdt_turnoff(); else { /* wim: shouldn't there be a: del_timer(&timer); */ - printk(KERN_CRIT PFX - "device file closed unexpectedly. Will not stop the WDT!\n"); + pr_crit("device file closed unexpectedly. Will not stop the WDT!\n"); } clear_bit(0, &wdt_is_open); wdt_expect_close = 0; @@ -322,8 +319,7 @@ static int wdt_notify_sys(struct notifier_block *this, * watchdog on reboot with no heartbeat */ wdt_change(WDT_ENABLE); - printk(KERN_INFO PFX "Watchdog timer is now enabled " - "with no heartbeat - should reboot in ~1 second.\n"); + pr_info("Watchdog timer is now enabled with no heartbeat - should reboot in ~1 second\n"); } return NOTIFY_DONE; } @@ -352,12 +348,11 @@ static int __init alim7101_wdt_init(void) struct pci_dev *ali1543_south; char tmp; - printk(KERN_INFO PFX "Steve Hill <steve@navaho.co.uk>.\n"); + pr_info("Steve Hill <steve@navaho.co.uk>\n"); 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"); + pr_info("ALi M7101 PMU not present - WDT not set\n"); return -EBUSY; } @@ -367,56 +362,46 @@ static int __init alim7101_wdt_init(void) ali1543_south = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); if (!ali1543_south) { - printk(KERN_INFO PFX - "ALi 1543 South-Bridge not present - WDT not set\n"); + pr_info("ALi 1543 South-Bridge not present - WDT not set\n"); goto err_out; } pci_read_config_byte(ali1543_south, 0x5e, &tmp); pci_dev_put(ali1543_south); if ((tmp & 0x1e) == 0x00) { if (!use_gpio) { - printk(KERN_INFO PFX - "Detected old alim7101 revision 'a1d'. " - "If this is a cobalt board, set the 'use_gpio' " - "module parameter.\n"); + pr_info("Detected old alim7101 revision 'a1d'. If this is a cobalt board, set the 'use_gpio' module parameter.\n"); goto err_out; } nowayout = 1; } else if ((tmp & 0x1e) != 0x12 && (tmp & 0x1e) != 0x00) { - printk(KERN_INFO PFX - "ALi 1543 South-Bridge does not have the correct " - "revision number (???1001?) - WDT not set\n"); + pr_info("ALi 1543 South-Bridge does not have the correct revision number (???1001?) - WDT not set\n"); goto err_out; } if (timeout < 1 || timeout > 3600) { /* arbitrary upper limit */ timeout = WATCHDOG_TIMEOUT; - printk(KERN_INFO PFX - "timeout value must be 1 <= x <= 3600, using %d\n", - timeout); + pr_info("timeout value must be 1 <= x <= 3600, using %d\n", + timeout); } rc = register_reboot_notifier(&wdt_notifier); if (rc) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", rc); + pr_err("cannot register reboot notifier (err=%d)\n", rc); goto err_out; } rc = misc_register(&wdt_miscdev); if (rc) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - wdt_miscdev.minor, rc); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + wdt_miscdev.minor, rc); goto err_out_reboot; } if (nowayout) __module_get(THIS_MODULE); - printk(KERN_INFO PFX "WDT driver for ALi M7101 initialised. " - "timeout=%d sec (nowayout=%d)\n", + pr_info("WDT driver for ALi M7101 initialised. timeout=%d sec (nowayout=%d)\n", timeout, nowayout); return 0; diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c index 502773a..639ae9a 100644 --- a/drivers/watchdog/ar7_wdt.c +++ b/drivers/watchdog/ar7_wdt.c @@ -23,6 +23,8 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/errno.h> @@ -39,7 +41,6 @@ #include <asm/addrspace.h> #include <asm/mach-ar7/ar7.h> -#define DRVNAME "ar7_wdt" #define LONGNAME "TI AR7 Watchdog Timer" MODULE_AUTHOR("Nicolas Thill <nico@openwrt.org>"); @@ -51,8 +52,8 @@ static int margin = 60; module_param(margin, int, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close"); #define READ_REG(x) readl((void __iomem *)&(x)) @@ -93,7 +94,7 @@ static void ar7_wdt_kick(u32 value) return; } } - printk(KERN_ERR DRVNAME ": failed to unlock WDT kick reg\n"); + pr_err("failed to unlock WDT kick reg\n"); } static void ar7_wdt_prescale(u32 value) @@ -106,7 +107,7 @@ static void ar7_wdt_prescale(u32 value) return; } } - printk(KERN_ERR DRVNAME ": failed to unlock WDT prescale reg\n"); + pr_err("failed to unlock WDT prescale reg\n"); } static void ar7_wdt_change(u32 value) @@ -119,7 +120,7 @@ static void ar7_wdt_change(u32 value) return; } } - printk(KERN_ERR DRVNAME ": failed to unlock WDT change reg\n"); + pr_err("failed to unlock WDT change reg\n"); } static void ar7_wdt_disable(u32 value) @@ -135,7 +136,7 @@ static void ar7_wdt_disable(u32 value) } } } - printk(KERN_ERR DRVNAME ": failed to unlock WDT disable reg\n"); + pr_err("failed to unlock WDT disable reg\n"); } static void ar7_wdt_update_margin(int new_margin) @@ -151,21 +152,20 @@ static void ar7_wdt_update_margin(int new_margin) change = 0xffff; ar7_wdt_change(change); margin = change * prescale_value / vbus_rate; - printk(KERN_INFO DRVNAME - ": timer margin %d seconds (prescale %d, change %d, freq %d)\n", - margin, prescale_value, change, vbus_rate); + pr_info("timer margin %d seconds (prescale %d, change %d, freq %d)\n", + margin, prescale_value, change, vbus_rate); } static void ar7_wdt_enable_wdt(void) { - printk(KERN_DEBUG DRVNAME ": enabling watchdog timer\n"); + pr_debug("enabling watchdog timer\n"); ar7_wdt_disable(1); ar7_wdt_kick(1); } static void ar7_wdt_disable_wdt(void) { - printk(KERN_DEBUG DRVNAME ": disabling watchdog timer\n"); + pr_debug("disabling watchdog timer\n"); ar7_wdt_disable(0); } @@ -183,9 +183,7 @@ static int ar7_wdt_open(struct inode *inode, struct file *file) static int ar7_wdt_release(struct inode *inode, struct file *file) { if (!expect_close) - printk(KERN_WARNING DRVNAME - ": watchdog device closed unexpectedly," - "will not disable the watchdog timer\n"); + pr_warn("watchdog device closed unexpectedly, will not disable the watchdog timer\n"); else if (!nowayout) ar7_wdt_disable_wdt(); clear_bit(0, &wdt_is_open); @@ -283,28 +281,28 @@ static int __devinit ar7_wdt_probe(struct platform_device *pdev) ar7_regs_wdt = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); if (!ar7_regs_wdt) { - printk(KERN_ERR DRVNAME ": could not get registers resource\n"); + pr_err("could not get registers resource\n"); rc = -ENODEV; goto out; } if (!request_mem_region(ar7_regs_wdt->start, resource_size(ar7_regs_wdt), LONGNAME)) { - printk(KERN_WARNING DRVNAME ": watchdog I/O region busy\n"); + pr_warn("watchdog I/O region busy\n"); rc = -EBUSY; goto out; } ar7_wdt = ioremap(ar7_regs_wdt->start, resource_size(ar7_regs_wdt)); if (!ar7_wdt) { - printk(KERN_ERR DRVNAME ": could not ioremap registers\n"); + pr_err("could not ioremap registers\n"); rc = -ENXIO; goto out_mem_region; } vbus_clk = clk_get(NULL, "vbus"); if (IS_ERR(vbus_clk)) { - printk(KERN_ERR DRVNAME ": could not get vbus clock\n"); + pr_err("could not get vbus clock\n"); rc = PTR_ERR(vbus_clk); goto out_mem_region; } @@ -315,7 +313,7 @@ static int __devinit ar7_wdt_probe(struct platform_device *pdev) rc = misc_register(&ar7_wdt_miscdev); if (rc) { - printk(KERN_ERR DRVNAME ": unable to register misc device\n"); + pr_err("unable to register misc device\n"); goto out_alloc; } goto out; diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c index 4ca5d40..2896430 100644 --- a/drivers/watchdog/at32ap700x_wdt.c +++ b/drivers/watchdog/at32ap700x_wdt.c @@ -45,8 +45,8 @@ MODULE_PARM_DESC(timeout, "Timeout value. Limited to be 1 or 2 seconds. (default=" __MODULE_STRING(TIMEOUT_DEFAULT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c index 7ceefd2..7ef99a1 100644 --- a/drivers/watchdog/at91rm9200_wdt.c +++ b/drivers/watchdog/at91rm9200_wdt.c @@ -9,6 +9,8 @@ * 2 of the License, or (at your option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/bitops.h> #include <linux/errno.h> #include <linux/fs.h> @@ -28,14 +30,14 @@ #define WDT_MAX_TIME 256 /* seconds */ static int wdt_time = WDT_DEFAULT_TIME; -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; module_param(wdt_time, int, 0); MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default=" __MODULE_STRING(WDT_DEFAULT_TIME) ")"); #ifdef CONFIG_WATCHDOG_NOWAYOUT -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -209,8 +211,8 @@ static int __devinit at91wdt_probe(struct platform_device *pdev) if (res) return res; - printk(KERN_INFO "AT91 Watchdog Timer enabled (%d seconds%s)\n", - wdt_time, nowayout ? ", nowayout" : ""); + pr_info("AT91 Watchdog Timer enabled (%d seconds%s)\n", + wdt_time, nowayout ? ", nowayout" : ""); return 0; } @@ -268,8 +270,8 @@ static int __init at91_wdt_init(void) if not reset to the default */ if (at91_wdt_settimeout(wdt_time)) { at91_wdt_settimeout(WDT_DEFAULT_TIME); - pr_info("at91_wdt: wdt_time value must be 1 <= wdt_time <= 256" - ", using %d\n", wdt_time); + pr_info("wdt_time value must be 1 <= wdt_time <= 256, using %d\n", + wdt_time); } return platform_driver_register(&at91wdt_driver); diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c index 0056256..05e1be8 100644 --- a/drivers/watchdog/at91sam9_wdt.c +++ b/drivers/watchdog/at91sam9_wdt.c @@ -15,6 +15,8 @@ * bootloader doesn't write to this register. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/errno.h> #include <linux/fs.h> #include <linux/init.h> @@ -60,8 +62,8 @@ module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. " "(default = " __MODULE_STRING(WDT_HEARTBEAT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -96,7 +98,7 @@ static void at91_ping(unsigned long data) at91_wdt_reset(); mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT); } else - printk(KERN_CRIT DRV_NAME": I will reset your machine !\n"); + pr_crit("I will reset your machine !\n"); } /* @@ -140,7 +142,7 @@ static int at91_wdt_settimeout(unsigned int timeout) /* Check if disabled */ mr = wdt_read(AT91_WDT_MR); if (mr & AT91_WDT_WDDIS) { - printk(KERN_ERR DRV_NAME": sorry, watchdog is disabled\n"); + pr_err("sorry, watchdog is disabled\n"); return -EIO; } @@ -283,7 +285,7 @@ static int __init at91wdt_probe(struct platform_device *pdev) setup_timer(&at91wdt_private.timer, at91_ping, 0); mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT); - printk(KERN_INFO DRV_NAME " enabled (heartbeat=%d sec, nowayout=%d)\n", + pr_info("enabled (heartbeat=%d sec, nowayout=%d)\n", heartbeat, nowayout); return 0; diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c index 9db8083..1f9371f 100644 --- a/drivers/watchdog/ath79_wdt.c +++ b/drivers/watchdog/ath79_wdt.c @@ -17,6 +17,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/bitops.h> #include <linux/errno.h> #include <linux/fs.h> @@ -45,8 +47,8 @@ #define WDOG_CTRL_ACTION_NMI 2 /* NMI */ #define WDOG_CTRL_ACTION_FCR 3 /* full chip reset */ -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -114,8 +116,7 @@ static int ath79_wdt_release(struct inode *inode, struct file *file) if (test_bit(WDT_FLAGS_EXPECT_CLOSE, &wdt_flags)) ath79_wdt_disable(); else { - pr_crit(DRIVER_NAME ": device closed unexpectedly, " - "watchdog timer will not stop!\n"); + pr_crit("device closed unexpectedly, watchdog timer will not stop!\n"); ath79_wdt_keepalive(); } diff --git a/drivers/watchdog/bcm47xx_wdt.c b/drivers/watchdog/bcm47xx_wdt.c index 5c5f4b1..bc0e91e 100644 --- a/drivers/watchdog/bcm47xx_wdt.c +++ b/drivers/watchdog/bcm47xx_wdt.c @@ -10,6 +10,8 @@ * 2 of the License, or (at your option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/bitops.h> #include <linux/errno.h> #include <linux/fs.h> @@ -33,14 +35,14 @@ #define WDT_MAX_TIME 255 /* seconds */ static int wdt_time = WDT_DEFAULT_TIME; -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; module_param(wdt_time, int, 0); MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default=" __MODULE_STRING(WDT_DEFAULT_TIME) ")"); #ifdef CONFIG_WATCHDOG_NOWAYOUT -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -91,7 +93,7 @@ static void bcm47xx_timer_tick(unsigned long unused) bcm47xx_wdt_hw_start(); mod_timer(&wdt_timer, jiffies + HZ); } else { - printk(KERN_CRIT DRV_NAME "Watchdog will fire soon!!!\n"); + pr_crit("Watchdog will fire soon!!!\n"); } } @@ -140,8 +142,7 @@ static int bcm47xx_wdt_release(struct inode *inode, struct file *file) if (expect_release == 42) { bcm47xx_wdt_stop(); } else { - printk(KERN_CRIT DRV_NAME - ": Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); bcm47xx_wdt_start(); } @@ -270,8 +271,7 @@ static int __init bcm47xx_wdt_init(void) if (bcm47xx_wdt_settimeout(wdt_time)) { bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME); - printk(KERN_INFO DRV_NAME ": " - "wdt_time value must be 0 < wdt_time < %d, using %d\n", + pr_info("wdt_time value must be 0 < wdt_time < %d, using %d\n", (WDT_MAX_TIME + 1), wdt_time); } @@ -285,8 +285,8 @@ static int __init bcm47xx_wdt_init(void) return ret; } - printk(KERN_INFO "BCM47xx Watchdog Timer enabled (%d seconds%s)\n", - wdt_time, nowayout ? ", nowayout" : ""); + pr_info("BCM47xx Watchdog Timer enabled (%d seconds%s)\n", + wdt_time, nowayout ? ", nowayout" : ""); return 0; } diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c index 8dc7de6..8379dc3 100644 --- a/drivers/watchdog/bcm63xx_wdt.c +++ b/drivers/watchdog/bcm63xx_wdt.c @@ -10,6 +10,8 @@ * 2 of the License, or (at your option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/bitops.h> #include <linux/errno.h> #include <linux/fs.h> @@ -50,8 +52,8 @@ static struct { static int expect_close; static int wdt_time = WDT_DEFAULT_TIME; -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -82,7 +84,7 @@ static void bcm63xx_timer_tick(unsigned long unused) bcm63xx_wdt_hw_start(); mod_timer(&bcm63xx_wdt_device.timer, jiffies + HZ); } else - printk(KERN_CRIT PFX ": watchdog will restart system\n"); + pr_crit("watchdog will restart system\n"); } static void bcm63xx_wdt_pet(void) @@ -126,8 +128,7 @@ static int bcm63xx_wdt_release(struct inode *inode, struct file *file) if (expect_close == 42) bcm63xx_wdt_pause(); else { - printk(KERN_CRIT PFX - ": Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); bcm63xx_wdt_start(); } clear_bit(0, &bcm63xx_wdt_device.inuse); diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c index b9fa9b7..38bc383 100644 --- a/drivers/watchdog/bfin_wdt.c +++ b/drivers/watchdog/bfin_wdt.c @@ -11,6 +11,8 @@ * Licensed under the GPL-2 or later. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/platform_device.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -28,15 +30,8 @@ #define stamp(fmt, args...) \ pr_debug("%s:%i: " fmt "\n", __func__, __LINE__, ## args) #define stampit() stamp("here i am") -#define pr_devinit(fmt, args...) \ - ({ static const __devinitconst char __fmt[] = fmt; \ - printk(__fmt, ## args); }) -#define pr_init(fmt, args...) \ - ({ static const __initconst char __fmt[] = fmt; \ - printk(__fmt, ## args); }) #define WATCHDOG_NAME "bfin-wdt" -#define PFX WATCHDOG_NAME ": " /* The BF561 has two watchdogs (one per core), but since Linux * only runs on core A, we'll just work with that one. @@ -54,7 +49,7 @@ #define WATCHDOG_TIMEOUT 20 static unsigned int timeout = WATCHDOG_TIMEOUT; -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static const struct watchdog_info bfin_wdt_info; static unsigned long open_check; static char expect_close; @@ -126,7 +121,7 @@ static int bfin_wdt_set_timeout(unsigned long t) stamp("maxtimeout=%us newtimeout=%lus (cnt=%#x)", max_t, t, cnt); if (t > max_t) { - printk(KERN_WARNING PFX "timeout value is too large\n"); + pr_warn("timeout value is too large\n"); return -EINVAL; } @@ -182,8 +177,7 @@ static int bfin_wdt_release(struct inode *inode, struct file *file) if (expect_close == 42) bfin_wdt_stop(); else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); bfin_wdt_keepalive(); } expect_close = 0; @@ -368,14 +362,13 @@ static int __devinit bfin_wdt_probe(struct platform_device *pdev) ret = misc_register(&bfin_wdt_miscdev); if (ret) { - pr_devinit(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); return ret; } - pr_devinit(KERN_INFO PFX "initialized: timeout=%d sec (nowayout=%d)\n", - timeout, nowayout); + pr_info("initialized: timeout=%d sec (nowayout=%d)\n", + timeout, nowayout); return 0; } @@ -439,14 +432,14 @@ static int __init bfin_wdt_init(void) */ ret = platform_driver_register(&bfin_wdt_driver); if (ret) { - pr_init(KERN_ERR PFX "unable to register driver\n"); + pr_err("unable to register driver\n"); return ret; } bfin_wdt_device = platform_device_register_simple(WATCHDOG_NAME, -1, NULL, 0); if (IS_ERR(bfin_wdt_device)) { - pr_init(KERN_ERR PFX "unable to register device\n"); + pr_err("unable to register device\n"); platform_driver_unregister(&bfin_wdt_driver); return PTR_ERR(bfin_wdt_device); } @@ -479,7 +472,7 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c index 7c0fdfc..3990d82 100644 --- a/drivers/watchdog/booke_wdt.c +++ b/drivers/watchdog/booke_wdt.c @@ -12,6 +12,8 @@ * option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/fs.h> #include <linux/smp.h> @@ -225,8 +227,8 @@ static int booke_wdt_open(struct inode *inode, struct file *file) if (booke_wdt_enabled == 0) { booke_wdt_enabled = 1; on_each_cpu(__booke_wdt_enable, NULL, 0); - pr_debug("booke_wdt: watchdog enabled (timeout = %llu sec)\n", - period_to_sec(booke_wdt_period)); + pr_debug("watchdog enabled (timeout = %llu sec)\n", + period_to_sec(booke_wdt_period)); } spin_unlock(&booke_wdt_lock); @@ -243,7 +245,7 @@ static int booke_wdt_release(struct inode *inode, struct file *file) */ on_each_cpu(__booke_wdt_disable, NULL, 0); booke_wdt_enabled = 0; - pr_debug("booke_wdt: watchdog disabled\n"); + pr_debug("watchdog disabled\n"); #endif clear_bit(0, &wdt_is_active); @@ -275,19 +277,19 @@ static int __init booke_wdt_init(void) { int ret = 0; - pr_info("booke_wdt: powerpc book-e watchdog driver loaded\n"); + pr_info("powerpc book-e watchdog driver loaded\n"); ident.firmware_version = cur_cpu_spec->pvr_value; ret = misc_register(&booke_wdt_miscdev); if (ret) { - pr_err("booke_wdt: cannot register device (minor=%u, ret=%i)\n", + pr_err("cannot register device (minor=%u, ret=%i)\n", WATCHDOG_MINOR, ret); return ret; } spin_lock(&booke_wdt_lock); if (booke_wdt_enabled == 1) { - pr_info("booke_wdt: watchdog enabled (timeout = %llu sec)\n", + pr_info("watchdog enabled (timeout = %llu sec)\n", period_to_sec(booke_wdt_period)); on_each_cpu(__booke_wdt_enable, NULL, 0); } diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c index 5b89f7d..6876430 100644 --- a/drivers/watchdog/coh901327_wdt.c +++ b/drivers/watchdog/coh901327_wdt.c @@ -8,17 +8,15 @@ */ #include <linux/module.h> #include <linux/types.h> -#include <linux/fs.h> -#include <linux/miscdevice.h> #include <linux/watchdog.h> #include <linux/interrupt.h> #include <linux/pm.h> #include <linux/platform_device.h> #include <linux/io.h> #include <linux/bitops.h> -#include <linux/uaccess.h> #include <linux/clk.h> #include <linux/delay.h> +#include <linux/err.h> #define DRV_NAME "WDOG COH 901 327" @@ -69,13 +67,11 @@ #define U300_WDOG_IFR_WILL_BARK_IRQ_FORCE_ENABLE 0x0001U /* Default timeout in seconds = 1 minute */ -static int margin = 60; +static unsigned int margin = 60; static resource_size_t phybase; static resource_size_t physize; static int irq; static void __iomem *virtbase; -static unsigned long coh901327_users; -static unsigned long boot_status; static struct device *parent; /* @@ -155,34 +151,35 @@ static void coh901327_disable(void) __func__, val); } -static void coh901327_start(void) +static int coh901327_start(struct watchdog_device *wdt_dev) { - coh901327_enable(margin * 100); + coh901327_enable(wdt_dev->timeout * 100); + return 0; +} + +static int coh901327_stop(struct watchdog_device *wdt_dev) +{ + coh901327_disable(); + return 0; } -static void coh901327_keepalive(void) +static int coh901327_ping(struct watchdog_device *wdd) { clk_enable(clk); /* Feed the watchdog */ writew(U300_WDOG_FR_FEED_RESTART_TIMER, virtbase + U300_WDOG_FR); clk_disable(clk); + return 0; } -static int coh901327_settimeout(int time) +static int coh901327_settimeout(struct watchdog_device *wdt_dev, + unsigned int time) { - /* - * Max margin is 327 since the 10ms - * timeout register is max - * 0x7FFF = 327670ms ~= 327s. - */ - if (time <= 0 || time > 327) - return -EINVAL; - - margin = time; + wdt_dev->timeout = time; clk_enable(clk); /* Set new timeout value */ - writew(margin * 100, virtbase + U300_WDOG_TR); + writew(time * 100, virtbase + U300_WDOG_TR); /* Feed the dog */ writew(U300_WDOG_FR_FEED_RESTART_TIMER, virtbase + U300_WDOG_FR); @@ -190,6 +187,23 @@ static int coh901327_settimeout(int time) return 0; } +static unsigned int coh901327_gettimeleft(struct watchdog_device *wdt_dev) +{ + u16 val; + + clk_enable(clk); + /* Read repeatedly until the value is stable! */ + val = readw(virtbase + U300_WDOG_CR); + while (val & U300_WDOG_CR_VALID_IND) + val = readw(virtbase + U300_WDOG_CR); + val &= U300_WDOG_CR_COUNT_VALUE_MASK; + clk_disable(clk); + if (val != 0) + val /= 100; + + return val; +} + /* * This interrupt occurs 10 ms before the watchdog WILL bark. */ @@ -218,130 +232,35 @@ static irqreturn_t coh901327_interrupt(int irq, void *data) return IRQ_HANDLED; } -/* - * Allow only one user (daemon) to open the watchdog - */ -static int coh901327_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(1, &coh901327_users)) - return -EBUSY; - coh901327_start(); - return nonseekable_open(inode, file); -} - -static int coh901327_release(struct inode *inode, struct file *file) -{ - clear_bit(1, &coh901327_users); - coh901327_disable(); - return 0; -} - -static ssize_t coh901327_write(struct file *file, const char __user *data, - size_t len, loff_t *ppos) -{ - if (len) - coh901327_keepalive(); - return len; -} - -static long coh901327_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - int ret = -ENOTTY; - u16 val; - int time; - int new_options; - union { - struct watchdog_info __user *ident; - int __user *i; - } uarg; - static const struct watchdog_info ident = { - .options = WDIOF_CARDRESET | - WDIOF_SETTIMEOUT | - WDIOF_KEEPALIVEPING, - .identity = "COH 901 327 Watchdog", - .firmware_version = 1, - }; - uarg.i = (int __user *)arg; - - switch (cmd) { - case WDIOC_GETSUPPORT: - ret = copy_to_user(uarg.ident, &ident, - sizeof(ident)) ? -EFAULT : 0; - break; - - case WDIOC_GETSTATUS: - ret = put_user(0, uarg.i); - break; - - case WDIOC_GETBOOTSTATUS: - ret = put_user(boot_status, uarg.i); - break; - - case WDIOC_SETOPTIONS: - ret = get_user(new_options, uarg.i); - if (ret) - break; - if (new_options & WDIOS_DISABLECARD) - coh901327_disable(); - if (new_options & WDIOS_ENABLECARD) - coh901327_start(); - ret = 0; - break; - - case WDIOC_KEEPALIVE: - coh901327_keepalive(); - ret = 0; - break; - - case WDIOC_SETTIMEOUT: - ret = get_user(time, uarg.i); - if (ret) - break; - - ret = coh901327_settimeout(time); - if (ret) - break; - /* Then fall through to return set value */ - - case WDIOC_GETTIMEOUT: - ret = put_user(margin, uarg.i); - break; - - case WDIOC_GETTIMELEFT: - clk_enable(clk); - /* Read repeatedly until the value is stable! */ - val = readw(virtbase + U300_WDOG_CR); - while (val & U300_WDOG_CR_VALID_IND) - val = readw(virtbase + U300_WDOG_CR); - val &= U300_WDOG_CR_COUNT_VALUE_MASK; - clk_disable(clk); - if (val != 0) - val /= 100; - ret = put_user(val, uarg.i); - break; - } - return ret; -} +static const struct watchdog_info coh901327_ident = { + .options = WDIOF_CARDRESET | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, + .identity = DRV_NAME, +}; -static const struct file_operations coh901327_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = coh901327_write, - .unlocked_ioctl = coh901327_ioctl, - .open = coh901327_open, - .release = coh901327_release, +static struct watchdog_ops coh901327_ops = { + .owner = THIS_MODULE, + .start = coh901327_start, + .stop = coh901327_stop, + .ping = coh901327_ping, + .set_timeout = coh901327_settimeout, + .get_timeleft = coh901327_gettimeleft, }; -static struct miscdevice coh901327_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &coh901327_fops, +static struct watchdog_device coh901327_wdt = { + .info = &coh901327_ident, + .ops = &coh901327_ops, + /* + * Max timeout is 327 since the 10ms + * timeout register is max + * 0x7FFF = 327670ms ~= 327s. + */ + .min_timeout = 0, + .max_timeout = 327, }; static int __exit coh901327_remove(struct platform_device *pdev) { - misc_deregister(&coh901327_miscdev); + watchdog_unregister_device(&coh901327_wdt); coh901327_disable(); free_irq(irq, pdev); clk_put(clk); @@ -350,7 +269,6 @@ static int __exit coh901327_remove(struct platform_device *pdev) return 0; } - static int __init coh901327_probe(struct platform_device *pdev) { int ret; @@ -393,7 +311,7 @@ static int __init coh901327_probe(struct platform_device *pdev) case U300_WDOG_SR_STATUS_TIMED_OUT: dev_info(&pdev->dev, "watchdog timed out since last chip reset!\n"); - boot_status = WDIOF_CARDRESET; + coh901327_wdt.bootstatus |= WDIOF_CARDRESET; /* Status will be cleared below */ break; case U300_WDOG_SR_STATUS_NORMAL: @@ -435,7 +353,11 @@ static int __init coh901327_probe(struct platform_device *pdev) clk_disable(clk); - ret = misc_register(&coh901327_miscdev); + if (margin < 1 || margin > 327) + margin = 60; + coh901327_wdt.timeout = margin; + + ret = watchdog_register_device(&coh901327_wdt); if (ret == 0) dev_info(&pdev->dev, "initialized. timer margin=%d sec\n", margin); @@ -543,8 +465,8 @@ module_exit(coh901327_exit); MODULE_AUTHOR("Linus Walleij <linus.walleij@stericsson.com>"); MODULE_DESCRIPTION("COH 901 327 Watchdog"); -module_param(margin, int, 0); +module_param(margin, uint, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); +MODULE_ALIAS("platform:coh901327-watchdog"); diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c index 251c863..7e88839 100644 --- a/drivers/watchdog/cpu5wdt.c +++ b/drivers/watchdog/cpu5wdt.c @@ -19,6 +19,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -71,7 +73,7 @@ static struct { static void cpu5wdt_trigger(unsigned long unused) { if (verbose > 2) - printk(KERN_DEBUG PFX "trigger at %i ticks\n", ticks); + pr_debug("trigger at %i ticks\n", ticks); if (cpu5wdt_device.running) ticks--; @@ -96,7 +98,7 @@ static void cpu5wdt_reset(void) ticks = cpu5wdt_device.default_ticks; if (verbose) - printk(KERN_DEBUG PFX "reset (%i ticks)\n", (int) ticks); + pr_debug("reset (%i ticks)\n", (int) ticks); } @@ -129,7 +131,7 @@ static int cpu5wdt_stop(void) ticks = cpu5wdt_device.default_ticks; spin_unlock_irqrestore(&cpu5wdt_lock, flags); if (verbose) - printk(KERN_CRIT PFX "stop not possible\n"); + pr_crit("stop not possible\n"); return -EIO; } @@ -219,8 +221,7 @@ static int __devinit cpu5wdt_init(void) int err; if (verbose) - printk(KERN_DEBUG PFX - "port=0x%x, verbose=%i\n", port, verbose); + pr_debug("port=0x%x, verbose=%i\n", port, verbose); init_completion(&cpu5wdt_device.stop); cpu5wdt_device.queue = 0; @@ -228,7 +229,7 @@ static int __devinit cpu5wdt_init(void) cpu5wdt_device.default_ticks = ticks; if (!request_region(port, CPU5WDT_EXTENT, PFX)) { - printk(KERN_ERR PFX "request_region failed\n"); + pr_err("request_region failed\n"); err = -EBUSY; goto no_port; } @@ -237,16 +238,16 @@ static int __devinit cpu5wdt_init(void) val = inb(port + CPU5WDT_STATUS_REG); val = (val >> 2) & 1; if (!val) - printk(KERN_INFO PFX "sorry, was my fault\n"); + pr_info("sorry, was my fault\n"); err = misc_register(&cpu5wdt_misc); if (err < 0) { - printk(KERN_ERR PFX "misc_register failed\n"); + pr_err("misc_register failed\n"); goto no_misc; } - printk(KERN_INFO PFX "init success\n"); + pr_info("init success\n"); return 0; no_misc: diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c index 1b793df..95b1b95 100644 --- a/drivers/watchdog/cpwd.c +++ b/drivers/watchdog/cpwd.c @@ -14,6 +14,8 @@ * Copyright (C) 2008 David S. Miller <davem@davemloft.net> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/fs.h> @@ -35,7 +37,6 @@ #include <asm/watchdog.h> #define DRIVER_NAME "cpwd" -#define PFX DRIVER_NAME ": " #define WD_OBPNAME "watchdog" #define WD_BADMODEL "SUNW,501-5336" @@ -385,8 +386,7 @@ static int cpwd_open(struct inode *inode, struct file *f) if (!p->initialized) { if (request_irq(p->irq, &cpwd_interrupt, IRQF_SHARED, DRIVER_NAME, p)) { - printk(KERN_ERR PFX "Cannot register IRQ %d\n", - p->irq); + pr_err("Cannot register IRQ %d\n", p->irq); mutex_unlock(&cpwd_mutex); return -EBUSY; } @@ -542,7 +542,7 @@ static int __devinit cpwd_probe(struct platform_device *op) p = kzalloc(sizeof(*p), GFP_KERNEL); err = -ENOMEM; if (!p) { - printk(KERN_ERR PFX "Unable to allocate struct cpwd.\n"); + pr_err("Unable to allocate struct cpwd\n"); goto out; } @@ -553,14 +553,14 @@ static int __devinit cpwd_probe(struct platform_device *op) p->regs = of_ioremap(&op->resource[0], 0, 4 * WD_TIMER_REGSZ, DRIVER_NAME); if (!p->regs) { - printk(KERN_ERR PFX "Unable to map registers.\n"); + pr_err("Unable to map registers\n"); goto out_free; } options = of_find_node_by_path("/options"); err = -ENODEV; if (!options) { - printk(KERN_ERR PFX "Unable to find /options node.\n"); + pr_err("Unable to find /options node\n"); goto out_iounmap; } @@ -605,8 +605,8 @@ static int __devinit cpwd_probe(struct platform_device *op) err = misc_register(&p->devs[i].misc); if (err) { - printk(KERN_ERR "Could not register misc device for " - "dev %d\n", i); + pr_err("Could not register misc device for dev %d\n", + i); goto out_unregister; } } @@ -617,8 +617,8 @@ static int __devinit cpwd_probe(struct platform_device *op) cpwd_timer.data = (unsigned long) p; cpwd_timer.expires = WD_BTIMEOUT; - printk(KERN_INFO PFX "PLD defect workaround enabled for " - "model " WD_BADMODEL ".\n"); + pr_info("PLD defect workaround enabled for model %s\n", + WD_BADMODEL); } dev_set_drvdata(&op->dev, p); diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c index 63d7b58..06de121 100644 --- a/drivers/watchdog/dw_wdt.c +++ b/drivers/watchdog/dw_wdt.c @@ -16,7 +16,8 @@ * If we receive an expected close for the watchdog then we keep the timer * running, otherwise the timer is stopped and the watchdog will expire. */ -#define pr_fmt(fmt) "dw_wdt: " fmt + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/bitops.h> #include <linux/clk.h> @@ -45,8 +46,8 @@ /* The maximum TOP (timeout period) value that can be set in the watchdog. */ #define DW_WDT_MAX_TOP 15 -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c index 09cd888..7705003 100644 --- a/drivers/watchdog/ep93xx_wdt.c +++ b/drivers/watchdog/ep93xx_wdt.c @@ -8,6 +8,9 @@ * Authors: Ray Lehtiniemi <rayl@mail.com>, * Alessandro Zummo <a.zummo@towertech.it> * + * Copyright (c) 2012 H Hartley Sweeten <hsweeten@visionengravers.com> + * Convert to a platform device and use the watchdog framework API + * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. @@ -25,187 +28,90 @@ #include <linux/platform_device.h> #include <linux/module.h> -#include <linux/fs.h> #include <linux/miscdevice.h> #include <linux/watchdog.h> #include <linux/timer.h> -#include <linux/uaccess.h> #include <linux/io.h> -#define WDT_VERSION "0.3" -#define PFX "ep93xx_wdt: " +#define WDT_VERSION "0.4" /* default timeout (secs) */ #define WDT_TIMEOUT 30 -static int nowayout = WATCHDOG_NOWAYOUT; -static int timeout = WDT_TIMEOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); + +static unsigned int timeout = WDT_TIMEOUT; +module_param(timeout, uint, 0); +MODULE_PARM_DESC(timeout, + "Watchdog timeout in seconds. (1<=timeout<=3600, default=" + __MODULE_STRING(WDT_TIMEOUT) ")"); static void __iomem *mmio_base; static struct timer_list timer; static unsigned long next_heartbeat; -static unsigned long wdt_status; -static unsigned long boot_status; - -#define WDT_IN_USE 0 -#define WDT_OK_TO_CLOSE 1 #define EP93XX_WATCHDOG 0x00 #define EP93XX_WDSTATUS 0x04 -/* reset the wdt every ~200ms */ +/* reset the wdt every ~200ms - the heartbeat of the device is 0.250 seconds*/ #define WDT_INTERVAL (HZ/5) -static void wdt_enable(void) +static void ep93xx_wdt_timer_ping(unsigned long data) { - writel(0xaaaa, mmio_base + EP93XX_WATCHDOG); -} - -static void wdt_disable(void) -{ - writel(0xaa55, mmio_base + EP93XX_WATCHDOG); -} + if (time_before(jiffies, next_heartbeat)) + writel(0x5555, mmio_base + EP93XX_WATCHDOG); -static inline void wdt_ping(void) -{ - writel(0x5555, mmio_base + EP93XX_WATCHDOG); + /* Re-set the timer interval */ + mod_timer(&timer, jiffies + WDT_INTERVAL); } -static void wdt_startup(void) +static int ep93xx_wdt_start(struct watchdog_device *wdd) { next_heartbeat = jiffies + (timeout * HZ); - wdt_enable(); + writel(0xaaaa, mmio_base + EP93XX_WATCHDOG); mod_timer(&timer, jiffies + WDT_INTERVAL); + + return 0; } -static void wdt_shutdown(void) +static int ep93xx_wdt_stop(struct watchdog_device *wdd) { del_timer_sync(&timer); - wdt_disable(); + writel(0xaa55, mmio_base + EP93XX_WATCHDOG); + + return 0; } -static void wdt_keepalive(void) +static int ep93xx_wdt_keepalive(struct watchdog_device *wdd) { /* user land ping */ next_heartbeat = jiffies + (timeout * HZ); -} - -static int ep93xx_wdt_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(WDT_IN_USE, &wdt_status)) - return -EBUSY; - - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - - wdt_startup(); - - return nonseekable_open(inode, file); -} - -static ssize_t -ep93xx_wdt_write(struct file *file, const char __user *data, size_t len, - loff_t *ppos) -{ - if (len) { - if (!nowayout) { - size_t i; - - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - - for (i = 0; i != len; i++) { - char c; - - if (get_user(c, data + i)) - return -EFAULT; - - if (c == 'V') - set_bit(WDT_OK_TO_CLOSE, &wdt_status); - else - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - } - } - wdt_keepalive(); - } - return len; + return 0; } -static const struct watchdog_info ident = { - .options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE, - .identity = "EP93xx Watchdog", +static const struct watchdog_info ep93xx_wdt_ident = { + .options = WDIOF_CARDRESET | + WDIOF_MAGICCLOSE | + WDIOF_KEEPALIVEPING, + .identity = "EP93xx Watchdog", }; -static long ep93xx_wdt_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - int ret = -ENOTTY; - - switch (cmd) { - case WDIOC_GETSUPPORT: - ret = copy_to_user((struct watchdog_info __user *)arg, &ident, - sizeof(ident)) ? -EFAULT : 0; - break; - - case WDIOC_GETSTATUS: - ret = put_user(0, (int __user *)arg); - break; - - case WDIOC_GETBOOTSTATUS: - ret = put_user(boot_status, (int __user *)arg); - break; - - case WDIOC_KEEPALIVE: - wdt_keepalive(); - ret = 0; - break; - - case WDIOC_GETTIMEOUT: - /* actually, it is 0.250 seconds.... */ - ret = put_user(1, (int __user *)arg); - break; - } - return ret; -} - -static int ep93xx_wdt_release(struct inode *inode, struct file *file) -{ - if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) - wdt_shutdown(); - else - printk(KERN_CRIT PFX - "Device closed unexpectedly - timer will not stop\n"); - - clear_bit(WDT_IN_USE, &wdt_status); - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - - return 0; -} - -static const struct file_operations ep93xx_wdt_fops = { +static struct watchdog_ops ep93xx_wdt_ops = { .owner = THIS_MODULE, - .write = ep93xx_wdt_write, - .unlocked_ioctl = ep93xx_wdt_ioctl, - .open = ep93xx_wdt_open, - .release = ep93xx_wdt_release, - .llseek = no_llseek, + .start = ep93xx_wdt_start, + .stop = ep93xx_wdt_stop, + .ping = ep93xx_wdt_keepalive, }; -static struct miscdevice ep93xx_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &ep93xx_wdt_fops, +static struct watchdog_device ep93xx_wdt_wdd = { + .info = &ep93xx_wdt_ident, + .ops = &ep93xx_wdt_ops, }; -static void ep93xx_timer_ping(unsigned long data) -{ - if (time_before(jiffies, next_heartbeat)) - wdt_ping(); - - /* Re-set the timer interval */ - mod_timer(&timer, jiffies + WDT_INTERVAL); -} - static int __devinit ep93xx_wdt_probe(struct platform_device *pdev) { struct resource *res; @@ -224,30 +130,35 @@ static int __devinit ep93xx_wdt_probe(struct platform_device *pdev) if (!mmio_base) return -ENXIO; - err = misc_register(&ep93xx_wdt_miscdev); - - val = readl(mmio_base + EP93XX_WATCHDOG); - boot_status = val & 0x01 ? 1 : 0; - - printk(KERN_INFO PFX "EP93XX watchdog, driver version " - WDT_VERSION "%s\n", - (val & 0x08) ? " (nCS1 disable detected)" : ""); - if (timeout < 1 || timeout > 3600) { timeout = WDT_TIMEOUT; - printk(KERN_INFO PFX + dev_warn(&pdev->dev, "timeout value must be 1<=x<=3600, using %d\n", timeout); } - setup_timer(&timer, ep93xx_timer_ping, 1); - return err; + val = readl(mmio_base + EP93XX_WATCHDOG); + ep93xx_wdt_wdd.bootstatus = (val & 0x01) ? WDIOF_CARDRESET : 0; + ep93xx_wdt_wdd.timeout = timeout; + + watchdog_set_nowayout(&ep93xx_wdt_wdd, nowayout); + + setup_timer(&timer, ep93xx_wdt_timer_ping, 1); + + err = watchdog_register_device(&ep93xx_wdt_wdd); + if (err) + return err; + + dev_info(&pdev->dev, + "EP93XX watchdog, driver version " WDT_VERSION "%s\n", + (val & 0x08) ? " (nCS1 disable detected)" : ""); + + return 0; } static int __devexit ep93xx_wdt_remove(struct platform_device *pdev) { - wdt_shutdown(); - misc_deregister(&ep93xx_wdt_miscdev); + watchdog_unregister_device(&ep93xx_wdt_wdd); return 0; } @@ -262,16 +173,9 @@ static struct platform_driver ep93xx_wdt_driver = { module_platform_driver(ep93xx_wdt_driver); -module_param(nowayout, int, 0); -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); - -module_param(timeout, int, 0); -MODULE_PARM_DESC(timeout, - "Watchdog timeout in seconds. (1<=timeout<=3600, default=" - __MODULE_STRING(WDT_TIMEOUT) ")"); - MODULE_AUTHOR("Ray Lehtiniemi <rayl@mail.com>," - "Alessandro Zummo <a.zummo@towertech.it>"); + "Alessandro Zummo <a.zummo@towertech.it>," + "H Hartley Sweeten <hsweeten@visionengravers.com>"); MODULE_DESCRIPTION("EP93xx Watchdog"); MODULE_LICENSE("GPL"); MODULE_VERSION(WDT_VERSION); diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c index 3946c51..0c60af1 100644 --- a/drivers/watchdog/eurotechwdt.c +++ b/drivers/watchdog/eurotechwdt.c @@ -45,6 +45,8 @@ * of the on-board SUPER I/O device SMSC FDC 37B782. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/interrupt.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -76,8 +78,8 @@ static char *ev = "int"; #define WDT_TIMEOUT 60 /* 1 minute */ -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -144,11 +146,11 @@ static void eurwdt_activate_timer(void) /* Setting interrupt line */ if (irq == 2 || irq > 15 || irq < 0) { - printk(KERN_ERR ": invalid irq number\n"); + pr_err("invalid irq number\n"); irq = 0; /* if invalid we disable interrupt */ } if (irq == 0) - printk(KERN_INFO ": interrupt disabled\n"); + pr_info("interrupt disabled\n"); eurwdt_write_reg(WDT_TIMER_CFG, irq << 4); @@ -163,12 +165,12 @@ static void eurwdt_activate_timer(void) static irqreturn_t eurwdt_interrupt(int irq, void *dev_id) { - printk(KERN_CRIT "timeout WDT timeout\n"); + pr_crit("timeout WDT timeout\n"); #ifdef ONLY_TESTING - printk(KERN_CRIT "Would Reboot.\n"); + pr_crit("Would Reboot\n"); #else - printk(KERN_CRIT "Initiating system reboot.\n"); + pr_crit("Initiating system reboot\n"); emergency_restart(); #endif return IRQ_HANDLED; @@ -335,8 +337,7 @@ static int eurwdt_release(struct inode *inode, struct file *file) if (eur_expect_close == 42) eurwdt_disable_timer(); else { - printk(KERN_CRIT - "eurwdt: Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); eurwdt_ping(); } clear_bit(0, &eurwdt_is_open); @@ -429,35 +430,32 @@ static int __init eurwdt_init(void) ret = request_irq(irq, eurwdt_interrupt, 0, "eurwdt", NULL); if (ret) { - printk(KERN_ERR "eurwdt: IRQ %d is not free.\n", irq); + pr_err("IRQ %d is not free\n", irq); goto out; } if (!request_region(io, 2, "eurwdt")) { - printk(KERN_ERR "eurwdt: IO %X is not free.\n", io); + pr_err("IO %X is not free\n", io); ret = -EBUSY; goto outirq; } ret = register_reboot_notifier(&eurwdt_notifier); if (ret) { - printk(KERN_ERR - "eurwdt: can't register reboot notifier (err=%d)\n", ret); + pr_err("can't register reboot notifier (err=%d)\n", ret); goto outreg; } ret = misc_register(&eurwdt_miscdev); if (ret) { - printk(KERN_ERR "eurwdt: can't misc_register on minor=%d\n", - WATCHDOG_MINOR); + pr_err("can't misc_register on minor=%d\n", WATCHDOG_MINOR); goto outreboot; } eurwdt_unlock_chip(); ret = 0; - printk(KERN_INFO "Eurotech WDT driver 0.01 at %X (Interrupt %d)" - " - timeout event: %s\n", + pr_info("Eurotech WDT driver 0.01 at %X (Interrupt %d) - timeout event: %s\n", io, irq, (!strcmp("int", ev) ? "int" : "reboot")); out: diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c index e45ca2b..c65b0a5 100644 --- a/drivers/watchdog/f71808e_wdt.c +++ b/drivers/watchdog/f71808e_wdt.c @@ -19,6 +19,8 @@ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * ***************************************************************************/ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/err.h> #include <linux/fs.h> #include <linux/init.h> @@ -189,8 +191,7 @@ static inline int superio_enter(int base) { /* Don't step on other drivers' I/O space by accident */ if (!request_muxed_region(base, 2, DRVNAME)) { - printk(KERN_ERR DRVNAME ": I/O address 0x%04x already in use\n", - (int)base); + pr_err("I/O address 0x%04x already in use\n", (int)base); return -EBUSY; } @@ -217,7 +218,7 @@ static int watchdog_set_timeout(int timeout) { if (timeout <= 0 || timeout > max_timeout) { - printk(KERN_ERR DRVNAME ": watchdog timeout out of range\n"); + pr_err("watchdog timeout out of range\n"); return -EINVAL; } @@ -252,7 +253,7 @@ static int watchdog_set_pulse_width(unsigned int pw) } else if (pw <= 5000) { watchdog.pulse_val = 3; } else { - printk(KERN_ERR DRVNAME ": pulse width out of range\n"); + pr_err("pulse width out of range\n"); err = -EINVAL; goto exit_unlock; } @@ -309,8 +310,7 @@ static int f71862fg_pin_configure(unsigned short ioaddr) if (ioaddr) superio_set_bit(ioaddr, SIO_REG_MFUNCT1, 1); } else { - printk(KERN_ERR DRVNAME ": Invalid argument f71862fg_pin=%d\n", - f71862fg_pin); + pr_err("Invalid argument f71862fg_pin=%d\n", f71862fg_pin); return -EINVAL; } return 0; @@ -487,8 +487,7 @@ static int watchdog_release(struct inode *inode, struct file *file) if (!watchdog.expect_close) { watchdog_keepalive(); - printk(KERN_CRIT DRVNAME - ": Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); } else if (!nowayout) { watchdog_stop(); } @@ -672,25 +671,22 @@ static int __init watchdog_init(int sioaddr) err = misc_register(&watchdog_miscdev); if (err) { - printk(KERN_ERR DRVNAME - ": cannot register miscdev on minor=%d\n", - watchdog_miscdev.minor); + pr_err("cannot register miscdev on minor=%d\n", + watchdog_miscdev.minor); goto exit_reboot; } if (start_withtimeout) { if (start_withtimeout <= 0 || start_withtimeout > max_timeout) { - printk(KERN_ERR DRVNAME - ": starting timeout out of range\n"); + pr_err("starting timeout out of range\n"); err = -EINVAL; goto exit_miscdev; } err = watchdog_start(); if (err) { - printk(KERN_ERR DRVNAME - ": cannot start watchdog timer\n"); + pr_err("cannot start watchdog timer\n"); goto exit_miscdev; } @@ -720,8 +716,7 @@ static int __init watchdog_init(int sioaddr) if (nowayout) __module_get(THIS_MODULE); - printk(KERN_INFO DRVNAME - ": watchdog started with initial timeout of %u sec\n", + pr_info("watchdog started with initial timeout of %u sec\n", start_withtimeout); } @@ -746,7 +741,7 @@ static int __init f71808e_find(int sioaddr) devid = superio_inw(sioaddr, SIO_REG_MANID); if (devid != SIO_FINTEK_ID) { - pr_debug(DRVNAME ": Not a Fintek device\n"); + pr_debug("Not a Fintek device\n"); err = -ENODEV; goto exit; } @@ -774,13 +769,13 @@ static int __init f71808e_find(int sioaddr) err = -ENODEV; goto exit; default: - printk(KERN_INFO DRVNAME ": Unrecognized Fintek device: %04x\n", - (unsigned int)devid); + pr_info("Unrecognized Fintek device: %04x\n", + (unsigned int)devid); err = -ENODEV; goto exit; } - printk(KERN_INFO DRVNAME ": Found %s watchdog chip, revision %d\n", + pr_info("Found %s watchdog chip, revision %d\n", f71808e_names[watchdog.type], (int)superio_inb(sioaddr, SIO_REG_DEVREV)); exit: @@ -808,8 +803,7 @@ static int __init f71808e_init(void) static void __exit f71808e_exit(void) { if (watchdog_is_running()) { - printk(KERN_WARNING DRVNAME - ": Watchdog timer still running, stopping it\n"); + pr_warn("Watchdog timer still running, stopping it\n"); watchdog_stop(); } misc_deregister(&watchdog_miscdev); diff --git a/drivers/watchdog/gef_wdt.c b/drivers/watchdog/gef_wdt.c index b146082..17f4cae 100644 --- a/drivers/watchdog/gef_wdt.c +++ b/drivers/watchdog/gef_wdt.c @@ -24,6 +24,8 @@ * capabilities) a kernel-based watchdog. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/compiler.h> #include <linux/init.h> @@ -68,8 +70,8 @@ static unsigned int bus_clk; static char expect_close; static DEFINE_SPINLOCK(gef_wdt_spinlock); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -110,7 +112,7 @@ static void gef_wdt_handler_enable(void) if (gef_wdt_toggle_wdc(GEF_WDC_ENABLED_FALSE, GEF_WDC_ENABLE_SHIFT)) { gef_wdt_service(); - printk(KERN_NOTICE "gef_wdt: watchdog activated\n"); + pr_notice("watchdog activated\n"); } } @@ -118,7 +120,7 @@ static void gef_wdt_handler_disable(void) { if (gef_wdt_toggle_wdc(GEF_WDC_ENABLED_TRUE, GEF_WDC_ENABLE_SHIFT)) - printk(KERN_NOTICE "gef_wdt: watchdog deactivated\n"); + pr_notice("watchdog deactivated\n"); } static void gef_wdt_set_timeout(unsigned int timeout) @@ -234,8 +236,7 @@ static int gef_wdt_release(struct inode *inode, struct file *file) if (expect_close == 42) gef_wdt_handler_disable(); else { - printk(KERN_CRIT - "gef_wdt: unexpected close, not stopping timer!\n"); + pr_crit("unexpected close, not stopping timer!\n"); gef_wdt_service(); } expect_close = 0; @@ -313,7 +314,7 @@ static struct platform_driver gef_wdt_driver = { static int __init gef_wdt_init(void) { - printk(KERN_INFO "GE watchdog driver\n"); + pr_info("GE watchdog driver\n"); return platform_driver_register(&gef_wdt_driver); } diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c index 9b49b12..dc563b6 100644 --- a/drivers/watchdog/geodewdt.c +++ b/drivers/watchdog/geodewdt.c @@ -9,6 +9,7 @@ * 2 of the License, or (at your option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/module.h> #include <linux/moduleparam.h> @@ -39,8 +40,8 @@ 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); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -100,7 +101,7 @@ static int geodewdt_release(struct inode *inode, struct file *file) geodewdt_disable(); module_put(THIS_MODULE); } else { - printk(KERN_CRIT "Unexpected close - watchdog is not stopping.\n"); + pr_crit("Unexpected close - watchdog is not stopping\n"); geodewdt_ping(); set_bit(WDT_FLAGS_ORPHAN, &wdt_flags); @@ -220,7 +221,7 @@ static int __devinit geodewdt_probe(struct platform_device *dev) wdt_timer = cs5535_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING); if (!wdt_timer) { - printk(KERN_ERR "geodewdt: No timers were available\n"); + pr_err("No timers were available\n"); return -ENODEV; } diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 3c166d3..cbc7cee 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -13,6 +13,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/device.h> #include <linux/fs.h> #include <linux/init.h> @@ -45,7 +47,7 @@ static unsigned int soft_margin = DEFAULT_MARGIN; /* in seconds */ static unsigned int reload; /* the computed soft_margin */ -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static char expect_release; static unsigned long hpwdt_is_open; @@ -235,8 +237,7 @@ static int __devinit cru_detect(unsigned long map_entry, asminline_call(&cmn_regs, bios32_entrypoint); if (cmn_regs.u1.ral != 0) { - printk(KERN_WARNING - "hpwdt: Call succeeded but with an error: 0x%x\n", + pr_warn("Call succeeded but with an error: 0x%x\n", cmn_regs.u1.ral); } else { physical_bios_base = cmn_regs.u2.rebx; @@ -256,14 +257,10 @@ static int __devinit cru_detect(unsigned long map_entry, } } - printk(KERN_DEBUG "hpwdt: CRU Base Address: 0x%lx\n", - physical_bios_base); - printk(KERN_DEBUG "hpwdt: CRU Offset Address: 0x%lx\n", - physical_bios_offset); - printk(KERN_DEBUG "hpwdt: CRU Length: 0x%lx\n", - cru_length); - printk(KERN_DEBUG "hpwdt: CRU Mapped Address: %p\n", - &cru_rom_addr); + pr_debug("CRU Base Address: 0x%lx\n", physical_bios_base); + pr_debug("CRU Offset Address: 0x%lx\n", physical_bios_offset); + pr_debug("CRU Length: 0x%lx\n", cru_length); + pr_debug("CRU Mapped Address: %p\n", &cru_rom_addr); } iounmap(bios32_map); return retval; @@ -458,16 +455,13 @@ static void hpwdt_ping(void) static int hpwdt_change_timer(int new_margin) { if (new_margin < 1 || new_margin > HPWDT_MAX_TIMER) { - printk(KERN_WARNING - "hpwdt: New value passed in is invalid: %d seconds.\n", + pr_warn("New value passed in is invalid: %d seconds\n", new_margin); return -EINVAL; } soft_margin = new_margin; - printk(KERN_DEBUG - "hpwdt: New timer passed in is %d seconds.\n", - new_margin); + pr_debug("New timer passed in is %d seconds\n", new_margin); reload = SECS_TO_TICKS(soft_margin); return 0; @@ -535,8 +529,7 @@ static int hpwdt_release(struct inode *inode, struct file *file) if (expect_release == 42) { hpwdt_stop(); } else { - printk(KERN_CRIT - "hpwdt: Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); hpwdt_ping(); } @@ -881,7 +874,7 @@ MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(soft_margin, int, 0); MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c index db45091..738032a 100644 --- a/drivers/watchdog/i6300esb.c +++ b/drivers/watchdog/i6300esb.c @@ -27,6 +27,8 @@ * Includes, defines, variables, module parameters, ... */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> @@ -44,7 +46,6 @@ #define ESB_VERSION "0.05" #define ESB_MODULE_NAME "i6300ESB timer" #define ESB_DRIVER_NAME ESB_MODULE_NAME ", v" ESB_VERSION -#define PFX ESB_MODULE_NAME ": " /* PCI configuration registers */ #define ESB_CONFIG_REG 0x60 /* Config register */ @@ -94,8 +95,8 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (1<heartbeat<2046, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -213,8 +214,7 @@ static int esb_release(struct inode *inode, struct file *file) if (esb_expect_close == 42) esb_timer_stop(); else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); esb_timer_keepalive(); } clear_bit(0, &timer_alive); @@ -347,19 +347,19 @@ MODULE_DEVICE_TABLE(pci, esb_pci_tbl); static unsigned char __devinit esb_getdevice(struct pci_dev *pdev) { if (pci_enable_device(pdev)) { - printk(KERN_ERR PFX "failed to enable device\n"); + pr_err("failed to enable device\n"); goto err_devput; } if (pci_request_region(pdev, 0, ESB_MODULE_NAME)) { - printk(KERN_ERR PFX "failed to request region\n"); + pr_err("failed to request region\n"); goto err_disable; } BASEADDR = pci_ioremap_bar(pdev, 0); if (BASEADDR == NULL) { /* Something's wrong here, BASEADDR has to be set */ - printk(KERN_ERR PFX "failed to get BASEADDR\n"); + pr_err("failed to get BASEADDR\n"); goto err_release; } @@ -397,7 +397,7 @@ static void __devinit esb_initdevice(void) /* Check that the WDT isn't already locked */ pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val1); if (val1 & ESB_WDT_LOCK) - printk(KERN_WARNING PFX "nowayout already set\n"); + pr_warn("nowayout already set\n"); /* Set the timer to watchdog mode and disable it for now */ pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x00); @@ -423,11 +423,11 @@ static int __devinit esb_probe(struct pci_dev *pdev, cards_found++; if (cards_found == 1) - printk(KERN_INFO PFX "Intel 6300ESB WatchDog Timer Driver v%s\n", + pr_info("Intel 6300ESB WatchDog Timer Driver v%s\n", ESB_VERSION); if (cards_found > 1) { - printk(KERN_ERR PFX "This driver only supports 1 device\n"); + pr_err("This driver only supports 1 device\n"); return -ENODEV; } @@ -439,9 +439,8 @@ static int __devinit esb_probe(struct pci_dev *pdev, if not reset to the default */ if (heartbeat < 0x1 || heartbeat > 2 * 0x03ff) { heartbeat = WATCHDOG_HEARTBEAT; - printk(KERN_INFO PFX - "heartbeat value must be 1<heartbeat<2046, using %d\n", - heartbeat); + pr_info("heartbeat value must be 1<heartbeat<2046, using %d\n", + heartbeat); } /* Initialize the watchdog and make sure it does not run */ @@ -450,14 +449,12 @@ static int __devinit esb_probe(struct pci_dev *pdev, /* Register the watchdog so that userspace has access to it */ ret = misc_register(&esb_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto err_unmap; } - printk(KERN_INFO PFX - "initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n", - BASEADDR, heartbeat, nowayout); + pr_info("initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n", + BASEADDR, heartbeat, nowayout); return 0; err_unmap: @@ -503,7 +500,7 @@ static int __init watchdog_init(void) static void __exit watchdog_cleanup(void) { pci_unregister_driver(&esb_driver); - printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); + pr_info("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 481d1ad..2721d29 100644 --- a/drivers/watchdog/iTCO_vendor_support.c +++ b/drivers/watchdog/iTCO_vendor_support.c @@ -17,10 +17,11 @@ * Includes, defines, variables, module parameters, ... */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + /* Module and version information */ #define DRV_NAME "iTCO_vendor_support" #define DRV_VERSION "1.04" -#define PFX DRV_NAME ": " /* Includes */ #include <linux/module.h> /* For module specific items */ @@ -355,13 +356,13 @@ EXPORT_SYMBOL(iTCO_vendor_check_noreboot_on); static int __init iTCO_vendor_init_module(void) { - printk(KERN_INFO PFX "vendor-support=%d\n", vendorsupport); + pr_info("vendor-support=%d\n", vendorsupport); return 0; } static void __exit iTCO_vendor_exit_module(void) { - printk(KERN_INFO PFX "Module Unloaded\n"); + pr_info("Module Unloaded\n"); } module_init(iTCO_vendor_init_module); diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c index bdf401b..9fecb95 100644 --- a/drivers/watchdog/iTCO_wdt.c +++ b/drivers/watchdog/iTCO_wdt.c @@ -43,10 +43,11 @@ * Includes, defines, variables, module parameters, ... */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + /* Module and version information */ #define DRV_NAME "iTCO_wdt" #define DRV_VERSION "1.07" -#define PFX DRV_NAME ": " /* Includes */ #include <linux/module.h> /* For module specific items */ @@ -413,8 +414,8 @@ MODULE_PARM_DESC(heartbeat, "Watchdog timeout in seconds. " "5..76 (TCO v1) or 3..614 (TCO v2), default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -489,8 +490,7 @@ 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/BIOS\n"); + pr_err("failed to reset NO_REBOOT flag, reboot disabled by hardware/BIOS\n"); return -EIO; } @@ -661,8 +661,7 @@ static int iTCO_wdt_release(struct inode *inode, struct file *file) if (expect_release == 42) { iTCO_wdt_stop(); } else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); iTCO_wdt_keepalive(); } clear_bit(0, &is_active); @@ -804,8 +803,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev, base_address &= 0x0000ff80; if (base_address == 0x00000000) { /* Something's wrong here, ACPIBASE has to be set */ - printk(KERN_ERR PFX "failed to get TCOBASE address, " - "device disabled by hardware/BIOS\n"); + pr_err("failed to get TCOBASE address, device disabled by hardware/BIOS\n"); return -ENODEV; } iTCO_wdt_private.iTCO_version = @@ -820,8 +818,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev, if (iTCO_wdt_private.iTCO_version == 2) { pci_read_config_dword(pdev, 0xf0, &base_address); if ((base_address & 1) == 0) { - printk(KERN_ERR PFX "RCBA is disabled by hardware" - "/BIOS, device disabled\n"); + pr_err("RCBA is disabled by hardware/BIOS, device disabled\n"); ret = -ENODEV; goto out; } @@ -831,8 +828,7 @@ 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_INFO PFX "unable to reset NO_REBOOT flag, " - "device disabled by hardware/BIOS\n"); + pr_info("unable to reset NO_REBOOT flag, device disabled by hardware/BIOS\n"); ret = -ENODEV; /* Cannot reset NO_REBOOT bit */ goto out_unmap; } @@ -842,9 +838,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev, /* The TCO logic uses the TCO_EN bit in the SMI_EN register */ if (!request_region(SMI_EN, 4, "iTCO_wdt")) { - printk(KERN_ERR PFX - "I/O address 0x%04lx already in use, " - "device disabled\n", SMI_EN); + pr_err("I/O address 0x%04lx already in use, device disabled\n", + SMI_EN); ret = -EIO; goto out_unmap; } @@ -858,17 +853,16 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev, /* The TCO I/O registers reside in a 32-byte range pointed to by the TCOBASE value */ if (!request_region(TCOBASE, 0x20, "iTCO_wdt")) { - printk(KERN_ERR PFX "I/O address 0x%04lx already in use " - "device disabled\n", TCOBASE); + pr_err("I/O address 0x%04lx already in use, device disabled\n", + TCOBASE); ret = -EIO; goto unreg_smi_en; } - printk(KERN_INFO PFX - "Found a %s TCO device (Version=%d, TCOBASE=0x%04lx)\n", - iTCO_chipset_info[ent->driver_data].name, - iTCO_chipset_info[ent->driver_data].iTCO_version, - TCOBASE); + pr_info("Found a %s TCO device (Version=%d, TCOBASE=0x%04lx)\n", + iTCO_chipset_info[ent->driver_data].name, + iTCO_chipset_info[ent->driver_data].iTCO_version, + TCOBASE); /* Clear out the (probably old) status */ outw(0x0008, TCO1_STS); /* Clear the Time Out Status bit */ @@ -882,20 +876,18 @@ 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 - "timeout value out of range, using %d\n", heartbeat); + pr_info("timeout value out of range, using %d\n", heartbeat); } ret = misc_register(&iTCO_wdt_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto unreg_region; } - printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n", - heartbeat, nowayout); + pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n", + heartbeat, nowayout); return 0; @@ -947,7 +939,7 @@ static int __devinit iTCO_wdt_probe(struct platform_device *dev) } if (!found) - printk(KERN_INFO PFX "No device detected.\n"); + pr_info("No device detected\n"); return ret; } @@ -979,8 +971,7 @@ static int __init iTCO_wdt_init_module(void) { int err; - printk(KERN_INFO PFX "Intel TCO WatchDog Timer Driver v%s\n", - DRV_VERSION); + pr_info("Intel TCO WatchDog Timer Driver v%s\n", DRV_VERSION); err = platform_driver_register(&iTCO_wdt_driver); if (err) @@ -1004,7 +995,7 @@ static void __exit iTCO_wdt_cleanup_module(void) { platform_device_unregister(iTCO_wdt_platform_device); platform_driver_unregister(&iTCO_wdt_driver); - printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); + pr_info("Watchdog Module Unloaded\n"); } module_init(iTCO_wdt_init_module); diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c index 0149d8d..e187664 100644 --- a/drivers/watchdog/ib700wdt.c +++ b/drivers/watchdog/ib700wdt.c @@ -31,6 +31,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/types.h> #include <linux/miscdevice.h> @@ -53,7 +55,6 @@ static char expect_close; /* Module information */ #define DRV_NAME "ib700wdt" -#define PFX DRV_NAME ": " /* * @@ -102,8 +103,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 0<= timeout <=30, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) "."); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -246,8 +247,7 @@ static int ibwdt_close(struct inode *inode, struct file *file) if (expect_close == 42) { ibwdt_disable(); } else { - printk(KERN_CRIT PFX - "WDT device closed unexpectedly. WDT will not stop!\n"); + pr_crit("WDT device closed unexpectedly. WDT will not stop!\n"); ibwdt_ping(); } clear_bit(0, &ibwdt_is_open); @@ -284,16 +284,14 @@ static int __devinit ibwdt_probe(struct platform_device *dev) #if WDT_START != WDT_STOP if (!request_region(WDT_STOP, 1, "IB700 WDT")) { - printk(KERN_ERR PFX "STOP method I/O %X is not available.\n", - WDT_STOP); + pr_err("STOP method I/O %X is not available\n", WDT_STOP); res = -EIO; goto out_nostopreg; } #endif if (!request_region(WDT_START, 1, "IB700 WDT")) { - printk(KERN_ERR PFX "START method I/O %X is not available.\n", - WDT_START); + pr_err("START method I/O %X is not available\n", WDT_START); res = -EIO; goto out_nostartreg; } @@ -302,13 +300,12 @@ static int __devinit ibwdt_probe(struct platform_device *dev) * if not reset to the default */ if (ibwdt_set_heartbeat(timeout)) { ibwdt_set_heartbeat(WATCHDOG_TIMEOUT); - printk(KERN_INFO PFX - "timeout value must be 0<=x<=30, using %d\n", timeout); + pr_info("timeout value must be 0<=x<=30, using %d\n", timeout); } res = misc_register(&ibwdt_miscdev); if (res) { - printk(KERN_ERR PFX "failed to register misc device\n"); + pr_err("failed to register misc device\n"); goto out_nomisc; } return 0; @@ -353,8 +350,7 @@ static int __init ibwdt_init(void) { int err; - printk(KERN_INFO PFX - "WDT driver for IB700 single board computer initialising.\n"); + pr_info("WDT driver for IB700 single board computer initialising\n"); err = platform_driver_register(&ibwdt_driver); if (err) @@ -378,7 +374,7 @@ static void __exit ibwdt_exit(void) { platform_device_unregister(ibwdt_platform_device); platform_driver_unregister(&ibwdt_driver); - printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); + pr_info("Watchdog Module Unloaded\n"); } module_init(ibwdt_init); diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c index c7481ad..bc3fb8f 100644 --- a/drivers/watchdog/ibmasr.c +++ b/drivers/watchdog/ibmasr.c @@ -10,6 +10,8 @@ * of the GNU Public License, incorporated herein by reference. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/fs.h> #include <linux/kernel.h> #include <linux/module.h> @@ -31,8 +33,6 @@ enum { ASMTYPE_SPRUCE, }; -#define PFX "ibmasr: " - #define TOPAZ_ASR_REG_OFFSET 4 #define TOPAZ_ASR_TOGGLE 0x40 #define TOPAZ_ASR_DISABLE 0x80 @@ -60,7 +60,7 @@ enum { #define SPRUCE_ASR_TOGGLE_MASK 0x02 /* bit 0: 0, then 1, then 0 */ -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static unsigned long asr_is_open; static char asr_expect_close; @@ -234,12 +234,11 @@ static int __init asr_get_base_address(void) } if (!request_region(asr_base, asr_length, "ibmasr")) { - printk(KERN_ERR PFX "address %#x already in use\n", - asr_base); + pr_err("address %#x already in use\n", asr_base); return -EBUSY; } - printk(KERN_INFO PFX "found %sASR @ addr %#x\n", type, asr_base); + pr_info("found %sASR @ addr %#x\n", type, asr_base); return 0; } @@ -332,8 +331,7 @@ static int asr_release(struct inode *inode, struct file *file) if (asr_expect_close == 42) asr_disable(); else { - printk(KERN_CRIT PFX - "unexpected close, not stopping watchdog!\n"); + pr_crit("unexpected close, not stopping watchdog!\n"); asr_toggle(); } clear_bit(0, &asr_is_open); @@ -393,7 +391,7 @@ static int __init ibmasr_init(void) rc = misc_register(&asr_miscdev); if (rc < 0) { release_region(asr_base, asr_length); - printk(KERN_ERR PFX "failed to register misc device\n"); + pr_err("failed to register misc device\n"); return rc; } @@ -413,7 +411,7 @@ static void __exit ibmasr_exit(void) module_init(ibmasr_init); module_exit(ibmasr_exit); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c index c44c333..7a2b734 100644 --- a/drivers/watchdog/imx2_wdt.c +++ b/drivers/watchdog/imx2_wdt.c @@ -46,6 +46,9 @@ #define IMX2_WDT_SEQ1 0x5555 /* -> service sequence 1 */ #define IMX2_WDT_SEQ2 0xAAAA /* -> service sequence 2 */ +#define IMX2_WDT_WRSR 0x04 /* Reset Status Register */ +#define IMX2_WDT_WRSR_TOUT (1 << 1) /* -> Reset due to Timeout */ + #define IMX2_WDT_MAX_TIME 128 #define IMX2_WDT_DEFAULT_TIME 60 /* in seconds */ @@ -65,8 +68,8 @@ static struct { static struct miscdevice imx2_wdt_miscdev; -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -175,6 +178,7 @@ static long imx2_wdt_ioctl(struct file *file, unsigned int cmd, void __user *argp = (void __user *)arg; int __user *p = argp; int new_value; + u16 val; switch (cmd) { case WDIOC_GETSUPPORT: @@ -182,9 +186,13 @@ static long imx2_wdt_ioctl(struct file *file, unsigned int cmd, sizeof(struct watchdog_info)) ? -EFAULT : 0; case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: return put_user(0, p); + case WDIOC_GETBOOTSTATUS: + val = __raw_readw(imx2_wdt.base + IMX2_WDT_WRSR); + new_value = val & IMX2_WDT_WRSR_TOUT ? WDIOF_CARDRESET : 0; + return put_user(new_value, p); + case WDIOC_KEEPALIVE: imx2_wdt_ping(); return 0; diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c index 1475e09..6d90f7a 100644 --- a/drivers/watchdog/indydog.c +++ b/drivers/watchdog/indydog.c @@ -12,6 +12,8 @@ * based on softdog.c by Alan Cox <alan@lxorguk.ukuu.org.uk> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -26,14 +28,13 @@ #include <linux/uaccess.h> #include <asm/sgi/mc.h> -#define PFX "indydog: " static unsigned long indydog_alive; static DEFINE_SPINLOCK(indydog_lock); #define WATCHDOG_TIMEOUT 30 /* 30 sec default timeout */ -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -60,7 +61,7 @@ static void indydog_stop(void) sgimc->cpuctrl0 = mc_ctrl0; spin_unlock(&indydog_lock); - printk(KERN_INFO PFX "Stopped watchdog timer.\n"); + pr_info("Stopped watchdog timer\n"); } static void indydog_ping(void) @@ -83,7 +84,7 @@ static int indydog_open(struct inode *inode, struct file *file) indydog_start(); indydog_ping(); - printk(KERN_INFO "Started watchdog timer.\n"); + pr_info("Started watchdog timer\n"); return nonseekable_open(inode, file); } @@ -178,30 +179,25 @@ static struct notifier_block indydog_notifier = { .notifier_call = indydog_notify_sys, }; -static char banner[] __initdata = - KERN_INFO PFX "Hardware Watchdog Timer for SGI IP22: 0.3\n"; - static int __init watchdog_init(void) { int ret; ret = register_reboot_notifier(&indydog_notifier); if (ret) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); return ret; } ret = misc_register(&indydog_miscdev); if (ret) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); unregister_reboot_notifier(&indydog_notifier); return ret; } - printk(banner); + pr_info("Hardware Watchdog Timer for SGI IP22: 0.3\n"); return 0; } diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c index 1abdc04..9dda2d0 100644 --- a/drivers/watchdog/intel_scu_watchdog.c +++ b/drivers/watchdog/intel_scu_watchdog.c @@ -22,6 +22,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/compiler.h> #include <linux/module.h> #include <linux/kernel.h> @@ -96,15 +98,14 @@ static struct intel_scu_watchdog_dev watchdog_device; static void watchdog_fire(void) { if (force_boot) { - printk(KERN_CRIT PFX "Initiating system reboot.\n"); + pr_crit("Initiating system reboot\n"); emergency_restart(); - printk(KERN_CRIT PFX "Reboot didn't ?????\n"); + pr_crit("Reboot didn't ?????\n"); } else { - printk(KERN_CRIT PFX "Immediate Reboot Disabled\n"); - printk(KERN_CRIT PFX - "System will reset when watchdog timer times out!\n"); + pr_crit("Immediate Reboot Disabled\n"); + pr_crit("System will reset when watchdog timer times out!\n"); } } @@ -112,8 +113,8 @@ static int check_timer_margin(int new_margin) { if ((new_margin < MIN_TIME_CYCLE) || (new_margin > MAX_TIME - timer_set)) { - pr_debug("Watchdog timer: value of new_margin %d is out of the range %d to %d\n", - new_margin, MIN_TIME_CYCLE, MAX_TIME - timer_set); + pr_debug("value of new_margin %d is out of the range %d to %d\n", + new_margin, MIN_TIME_CYCLE, MAX_TIME - timer_set); return -EINVAL; } return 0; @@ -156,14 +157,14 @@ static irqreturn_t watchdog_timer_interrupt(int irq, void *dev_id) int int_status; int_status = ioread32(watchdog_device.timer_interrupt_status_addr); - pr_debug("Watchdog timer: irq, int_status: %x\n", int_status); + pr_debug("irq, int_status: %x\n", int_status); if (int_status != 0) return IRQ_NONE; /* has the timer been started? If not, then this is spurious */ if (watchdog_device.timer_started == 0) { - pr_debug("Watchdog timer: spurious interrupt received\n"); + pr_debug("spurious interrupt received\n"); return IRQ_HANDLED; } @@ -220,16 +221,15 @@ static int intel_scu_set_heartbeat(u32 t) (watchdog_device.timer_set - timer_margin) * watchdog_device.timer_tbl_ptr->freq_hz; - pr_debug("Watchdog timer: set_heartbeat: timer freq is %d\n", - watchdog_device.timer_tbl_ptr->freq_hz); - pr_debug("Watchdog timer: set_heartbeat: timer_set is %x (hex)\n", - watchdog_device.timer_set); - pr_debug("Watchdog timer: set_hearbeat: timer_margin is %x (hex)\n", - timer_margin); - pr_debug("Watchdog timer: set_heartbeat: threshold is %x (hex)\n", - watchdog_device.threshold); - pr_debug("Watchdog timer: set_heartbeat: soft_threshold is %x (hex)\n", - watchdog_device.soft_threshold); + pr_debug("set_heartbeat: timer freq is %d\n", + watchdog_device.timer_tbl_ptr->freq_hz); + pr_debug("set_heartbeat: timer_set is %x (hex)\n", + watchdog_device.timer_set); + pr_debug("set_hearbeat: timer_margin is %x (hex)\n", timer_margin); + pr_debug("set_heartbeat: threshold is %x (hex)\n", + watchdog_device.threshold); + pr_debug("set_heartbeat: soft_threshold is %x (hex)\n", + watchdog_device.soft_threshold); /* Adjust thresholds by FREQ_ADJUSTMENT factor, to make the */ /* watchdog timing come out right. */ @@ -264,7 +264,7 @@ static int intel_scu_set_heartbeat(u32 t) if (MAX_RETRY < retry_count++) { /* Unable to set timer value */ - pr_err("Watchdog timer: Unable to set timer\n"); + pr_err("Unable to set timer\n"); return -ENODEV; } @@ -321,18 +321,17 @@ static int intel_scu_release(struct inode *inode, struct file *file) */ if (!test_and_clear_bit(0, &watchdog_device.driver_open)) { - pr_debug("Watchdog timer: intel_scu_release, without open\n"); + pr_debug("intel_scu_release, without open\n"); return -ENOTTY; } if (!watchdog_device.timer_started) { /* Just close, since timer has not been started */ - pr_debug("Watchdog timer: closed, without starting timer\n"); + pr_debug("closed, without starting timer\n"); return 0; } - printk(KERN_CRIT PFX - "Unexpected close of /dev/watchdog!\n"); + pr_crit("Unexpected close of /dev/watchdog!\n"); /* Since the timer was started, prevent future reopens */ watchdog_device.driver_closed = 1; @@ -454,9 +453,8 @@ static int __init intel_scu_watchdog_init(void) /* Check value of timer_set boot parameter */ if ((timer_set < MIN_TIME_CYCLE) || (timer_set > MAX_TIME - MIN_TIME_CYCLE)) { - pr_err("Watchdog timer: value of timer_set %x (hex) " - "is out of range from %x to %x (hex)\n", - timer_set, MIN_TIME_CYCLE, MAX_TIME - MIN_TIME_CYCLE); + pr_err("value of timer_set %x (hex) is out of range from %x to %x (hex)\n", + timer_set, MIN_TIME_CYCLE, MAX_TIME - MIN_TIME_CYCLE); return -EINVAL; } @@ -467,19 +465,18 @@ static int __init intel_scu_watchdog_init(void) watchdog_device.timer_tbl_ptr = sfi_get_mtmr(sfi_mtimer_num-1); if (watchdog_device.timer_tbl_ptr == NULL) { - pr_debug("Watchdog timer - Intel SCU watchdog: timer is not available\n"); + pr_debug("timer is not available\n"); return -ENODEV; } /* make sure the timer exists */ if (watchdog_device.timer_tbl_ptr->phys_addr == 0) { - pr_debug("Watchdog timer - Intel SCU watchdog - timer %d does not have valid physical memory\n", - sfi_mtimer_num); + pr_debug("timer %d does not have valid physical memory\n", + sfi_mtimer_num); return -ENODEV; } if (watchdog_device.timer_tbl_ptr->irq == 0) { - pr_debug("Watchdog timer: timer %d invalid irq\n", - sfi_mtimer_num); + pr_debug("timer %d invalid irq\n", sfi_mtimer_num); return -ENODEV; } @@ -487,7 +484,7 @@ static int __init intel_scu_watchdog_init(void) 20); if (tmp_addr == NULL) { - pr_debug("Watchdog timer: timer unable to ioremap\n"); + pr_debug("timer unable to ioremap\n"); return -ENOMEM; } @@ -512,7 +509,7 @@ static int __init intel_scu_watchdog_init(void) ret = register_reboot_notifier(&watchdog_device.intel_scu_notifier); if (ret) { - pr_err("Watchdog timer: cannot register notifier %d)\n", ret); + pr_err("cannot register notifier %d)\n", ret); goto register_reboot_error; } @@ -522,8 +519,8 @@ static int __init intel_scu_watchdog_init(void) ret = misc_register(&watchdog_device.miscdev); if (ret) { - pr_err("Watchdog timer: cannot register miscdev %d err =%d\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev %d err =%d\n", + WATCHDOG_MINOR, ret); goto misc_register_error; } @@ -532,7 +529,7 @@ static int __init intel_scu_watchdog_init(void) IRQF_SHARED, "watchdog", &watchdog_device.timer_load_count_addr); if (ret) { - pr_err("Watchdog timer: error requesting irq %d\n", ret); + pr_err("error requesting irq %d\n", ret); goto request_irq_error; } /* Make sure timer is disabled before returning */ diff --git a/drivers/watchdog/intel_scu_watchdog.h b/drivers/watchdog/intel_scu_watchdog.h index d2b074a..f3ac608 100644 --- a/drivers/watchdog/intel_scu_watchdog.h +++ b/drivers/watchdog/intel_scu_watchdog.h @@ -25,7 +25,6 @@ #ifndef __INTEL_SCU_WATCHDOG_H #define __INTEL_SCU_WATCHDOG_H -#define PFX "Intel_SCU: " #define WDT_VER "0.3" /* minimum time between interrupts */ diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c index 82fa7a9..d964faf 100644 --- a/drivers/watchdog/iop_wdt.c +++ b/drivers/watchdog/iop_wdt.c @@ -24,6 +24,8 @@ * Dan Williams <dan.j.williams@intel.com> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/kernel.h> #include <linux/fs.h> @@ -34,7 +36,7 @@ #include <linux/uaccess.h> #include <mach/hardware.h> -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static unsigned long wdt_status; static unsigned long boot_status; static DEFINE_SPINLOCK(wdt_lock); @@ -85,7 +87,7 @@ static int wdt_disable(void) write_wdtcr(IOP_WDTCR_DIS); clear_bit(WDT_ENABLED, &wdt_status); spin_unlock(&wdt_lock); - printk(KERN_INFO "WATCHDOG: Disabled\n"); + pr_info("Disabled\n"); return 0; } else return 1; @@ -197,8 +199,8 @@ static int iop_wdt_release(struct inode *inode, struct file *file) */ if (state != 0) { wdt_enable(); - printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - " - "reset in %lu seconds\n", iop_watchdog_timeout()); + pr_crit("Device closed unexpectedly - reset in %lu seconds\n", + iop_watchdog_timeout()); } clear_bit(WDT_IN_USE, &wdt_status); @@ -238,8 +240,7 @@ static int __init iop_wdt_init(void) with an open */ ret = misc_register(&iop_wdt_miscdev); if (ret == 0) - printk(KERN_INFO "iop watchdog timer: timeout %lu sec\n", - iop_watchdog_timeout()); + pr_info("timeout %lu sec\n", iop_watchdog_timeout()); return ret; } @@ -252,7 +253,7 @@ static void __exit iop_wdt_exit(void) module_init(iop_wdt_init); module_exit(iop_wdt_exit); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_AUTHOR("Curt E Bruns <curt.e.bruns@intel.com>"); diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c index 8d2d850..f4cce6d 100644 --- a/drivers/watchdog/it8712f_wdt.c +++ b/drivers/watchdog/it8712f_wdt.c @@ -20,6 +20,8 @@ * software is provided AS-IS with no warranties. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> @@ -33,6 +35,7 @@ #include <linux/io.h> #include <linux/ioport.h> +#define DEBUG #define NAME "it8712f_wdt" MODULE_AUTHOR("Jorge Boncompte - DTI2 <jorge@dti2.net>"); @@ -45,8 +48,8 @@ static int margin = 60; /* in seconds */ module_param(margin, int, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close"); static unsigned long wdt_open; @@ -158,10 +161,10 @@ static void it8712f_wdt_update_margin(void) */ if (units <= max_units) { config |= WDT_UNIT_SEC; /* else UNIT is MINUTES */ - printk(KERN_INFO NAME ": timer margin %d seconds\n", units); + pr_info("timer margin %d seconds\n", units); } else { units /= 60; - printk(KERN_INFO NAME ": timer margin %d minutes\n", units); + pr_info("timer margin %d minutes\n", units); } superio_outb(config, WDT_CONFIG); @@ -184,7 +187,7 @@ static int it8712f_wdt_enable(void) if (ret) return ret; - printk(KERN_DEBUG NAME ": enabling watchdog timer\n"); + pr_debug("enabling watchdog timer\n"); superio_select(LDN_GPIO); superio_outb(wdt_control_reg, WDT_CONTROL); @@ -204,7 +207,7 @@ static int it8712f_wdt_disable(void) if (ret) return ret; - printk(KERN_DEBUG NAME ": disabling watchdog timer\n"); + pr_debug("disabling watchdog timer\n"); superio_select(LDN_GPIO); superio_outb(0, WDT_CONFIG); @@ -331,12 +334,10 @@ static int it8712f_wdt_open(struct inode *inode, struct file *file) static int it8712f_wdt_release(struct inode *inode, struct file *file) { if (expect_close != 42) { - printk(KERN_WARNING NAME - ": watchdog device closed unexpectedly, will not" - " disable the watchdog timer\n"); + pr_warn("watchdog device closed unexpectedly, will not disable the watchdog timer\n"); } else if (!nowayout) { if (it8712f_wdt_disable()) - printk(KERN_WARNING NAME "Watchdog disable failed\n"); + pr_warn("Watchdog disable failed\n"); } expect_close = 0; clear_bit(0, &wdt_open); @@ -374,13 +375,13 @@ static int __init it8712f_wdt_find(unsigned short *address) superio_select(LDN_GAME); superio_outb(1, ACT_REG); if (!(superio_inb(ACT_REG) & 0x01)) { - printk(KERN_ERR NAME ": Device not activated, skipping\n"); + pr_err("Device not activated, skipping\n"); goto exit; } *address = superio_inw(BASE_REG); if (*address == 0) { - printk(KERN_ERR NAME ": Base address not set, skipping\n"); + pr_err("Base address not set, skipping\n"); goto exit; } @@ -394,8 +395,7 @@ static int __init it8712f_wdt_find(unsigned short *address) if (margin > (max_units * 60)) margin = (max_units * 60); - printk(KERN_INFO NAME ": Found IT%04xF chip revision %d - " - "using DogFood address 0x%x\n", + pr_info("Found IT%04xF chip revision %d - using DogFood address 0x%x\n", chip_type, revision, *address); exit: @@ -411,27 +411,26 @@ static int __init it8712f_wdt_init(void) return -ENODEV; if (!request_region(address, 1, "IT8712F Watchdog")) { - printk(KERN_WARNING NAME ": watchdog I/O region busy\n"); + pr_warn("watchdog I/O region busy\n"); return -EBUSY; } err = it8712f_wdt_disable(); if (err) { - printk(KERN_ERR NAME ": unable to disable watchdog timer.\n"); + pr_err("unable to disable watchdog timer\n"); goto out; } err = register_reboot_notifier(&it8712f_wdt_notifier); if (err) { - printk(KERN_ERR NAME ": unable to register reboot notifier\n"); + pr_err("unable to register reboot notifier\n"); goto out; } err = misc_register(&it8712f_wdt_miscdev); if (err) { - printk(KERN_ERR NAME - ": cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, err); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, err); goto reboot_out; } diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c index a2d9a12..405ae7b 100644 --- a/drivers/watchdog/it87_wdt.c +++ b/drivers/watchdog/it87_wdt.c @@ -29,6 +29,8 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -47,7 +49,6 @@ #define WATCHDOG_VERSION "1.14" #define WATCHDOG_NAME "IT87 WDT" -#define PFX WATCHDOG_NAME ": " #define DRIVER_VERSION WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n" #define WD_MAGIC 'V' @@ -142,7 +143,7 @@ static int nogameport = DEFAULT_NOGAMEPORT; static int exclusive = DEFAULT_EXCLUSIVE; static int timeout = DEFAULT_TIMEOUT; static int testmode = DEFAULT_TESTMODE; -static int nowayout = DEFAULT_NOWAYOUT; +static bool nowayout = DEFAULT_NOWAYOUT; module_param(nogameport, int, 0); MODULE_PARM_DESC(nogameport, "Forbid the activation of game port, default=" @@ -156,7 +157,7 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds, default=" module_param(testmode, int, 0); MODULE_PARM_DESC(testmode, "Watchdog test mode (1 = no reboot), default=" __MODULE_STRING(DEFAULT_TESTMODE)); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started, default=" __MODULE_STRING(WATCHDOG_NOWAYOUT)); @@ -428,8 +429,7 @@ static int wdt_release(struct inode *inode, struct file *file) clear_bit(WDTS_TIMER_RUN, &wdt_status); } else { wdt_keepalive(); - printk(KERN_CRIT PFX - "unexpected close, not stopping watchdog!\n"); + pr_crit("unexpected close, not stopping watchdog!\n"); } } clear_bit(WDTS_DEV_OPEN, &wdt_status); @@ -621,16 +621,14 @@ static int __init it87_wdt_init(void) try_gameport = 0; break; case IT8705_ID: - printk(KERN_ERR PFX - "Unsupported Chip found, Chip %04x Revision %02x\n", + pr_err("Unsupported Chip found, Chip %04x Revision %02x\n", chip_type, chip_rev); return -ENODEV; case NO_DEV_ID: - printk(KERN_ERR PFX "no device\n"); + pr_err("no device\n"); return -ENODEV; default: - printk(KERN_ERR PFX - "Unknown Chip found, Chip %04x Revision %04x\n", + pr_err("Unknown Chip found, Chip %04x Revision %04x\n", chip_type, chip_rev); return -ENODEV; } @@ -663,13 +661,11 @@ static int __init it87_wdt_init(void) if (!test_bit(WDTS_USE_GP, &wdt_status)) { if (!request_region(CIR_BASE, 8, WATCHDOG_NAME)) { if (gp_rreq_fail) - printk(KERN_ERR PFX - "I/O Address 0x%04x and 0x%04x" - " already in use\n", base, CIR_BASE); + pr_err("I/O Address 0x%04x and 0x%04x already in use\n", + base, CIR_BASE); else - printk(KERN_ERR PFX - "I/O Address 0x%04x already in use\n", - CIR_BASE); + pr_err("I/O Address 0x%04x already in use\n", + CIR_BASE); rc = -EIO; goto err_out; } @@ -688,9 +684,8 @@ static int __init it87_wdt_init(void) if (timeout < 1 || timeout > max_units * 60) { timeout = DEFAULT_TIMEOUT; - printk(KERN_WARNING PFX - "Timeout value out of range, use default %d sec\n", - DEFAULT_TIMEOUT); + pr_warn("Timeout value out of range, use default %d sec\n", + DEFAULT_TIMEOUT); } if (timeout > max_units) @@ -698,16 +693,14 @@ static int __init it87_wdt_init(void) rc = register_reboot_notifier(&wdt_notifier); if (rc) { - printk(KERN_ERR PFX - "Cannot register reboot notifier (err=%d)\n", rc); + pr_err("Cannot register reboot notifier (err=%d)\n", rc); goto err_out_region; } rc = misc_register(&wdt_miscdev); if (rc) { - printk(KERN_ERR PFX - "Cannot register miscdev on minor=%d (err=%d)\n", - wdt_miscdev.minor, rc); + pr_err("Cannot register miscdev on minor=%d (err=%d)\n", + wdt_miscdev.minor, rc); goto err_out_reboot; } @@ -722,9 +715,8 @@ static int __init it87_wdt_init(void) outb(0x09, CIR_IER(base)); } - printk(KERN_INFO PFX "Chip IT%04x revision %d initialized. " - "timeout=%d sec (nowayout=%d testmode=%d exclusive=%d " - "nogameport=%d)\n", chip_type, chip_rev, timeout, + pr_info("Chip IT%04x revision %d initialized. timeout=%d sec (nowayout=%d testmode=%d exclusive=%d nogameport=%d)\n", + chip_type, chip_rev, timeout, nowayout, testmode, exclusive, nogameport); superio_exit(); diff --git a/drivers/watchdog/ixp2000_wdt.c b/drivers/watchdog/ixp2000_wdt.c index 084f71aa..3f047a5 100644 --- a/drivers/watchdog/ixp2000_wdt.c +++ b/drivers/watchdog/ixp2000_wdt.c @@ -16,6 +16,8 @@ * warranty of any kind, whether express or implied. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -29,7 +31,7 @@ #include <linux/uaccess.h> #include <mach/hardware.h> -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static unsigned int heartbeat = 60; /* (secs) Default is 1 minute */ static unsigned long wdt_status; static DEFINE_SPINLOCK(wdt_lock); @@ -158,8 +160,7 @@ static int ixp2000_wdt_release(struct inode *inode, struct file *file) if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) wdt_disable(); else - printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - " - "timer will not stop\n"); + pr_crit("Device closed unexpectedly - timer will not stop\n"); clear_bit(WDT_IN_USE, &wdt_status); clear_bit(WDT_OK_TO_CLOSE, &wdt_status); @@ -185,7 +186,7 @@ static struct miscdevice ixp2000_wdt_miscdev = { static int __init ixp2000_wdt_init(void) { if ((*IXP2000_PRODUCT_ID & 0x001ffef0) == 0x00000000) { - printk(KERN_INFO "Unable to use IXP2000 watchdog due to IXP2800 erratum #25.\n"); + pr_info("Unable to use IXP2000 watchdog due to IXP2800 erratum #25\n"); return -EIO; } wdt_tick_rate = (*IXP2000_T1_CLD * HZ) / 256; @@ -206,7 +207,7 @@ MODULE_DESCRIPTION("IXP2000 Network Processor Watchdog"); module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 60s)"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c index 4fc2e9a..5580b4f 100644 --- a/drivers/watchdog/ixp4xx_wdt.c +++ b/drivers/watchdog/ixp4xx_wdt.c @@ -13,6 +13,8 @@ * warranty of any kind, whether express or implied. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -25,7 +27,7 @@ #include <linux/uaccess.h> #include <mach/hardware.h> -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static int heartbeat = 60; /* (secs) Default is 1 minute */ static unsigned long wdt_status; static unsigned long boot_status; @@ -147,8 +149,7 @@ static int ixp4xx_wdt_release(struct inode *inode, struct file *file) if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) wdt_disable(); else - printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - " - "timer will not stop\n"); + pr_crit("Device closed unexpectedly - timer will not stop\n"); clear_bit(WDT_IN_USE, &wdt_status); clear_bit(WDT_OK_TO_CLOSE, &wdt_status); @@ -176,8 +177,7 @@ static int __init ixp4xx_wdt_init(void) int ret; if (!(read_cpuid_id() & 0xf) && !cpu_is_ixp46x()) { - printk(KERN_ERR "IXP4XXX Watchdog: Rev. A0 IXP42x CPU detected" - " - watchdog disabled\n"); + pr_err("Rev. A0 IXP42x CPU detected - watchdog disabled\n"); return -ENODEV; } @@ -185,8 +185,7 @@ static int __init ixp4xx_wdt_init(void) WDIOF_CARDRESET : 0; ret = misc_register(&ixp4xx_wdt_miscdev); if (ret == 0) - printk(KERN_INFO "IXP4xx Watchdog Timer: heartbeat %d sec\n", - heartbeat); + pr_info("timer heartbeat %d sec\n", heartbeat); return ret; } @@ -205,7 +204,7 @@ MODULE_DESCRIPTION("IXP4xx Network Processor Watchdog"); module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 60s)"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c index 17ef300..978615e 100644 --- a/drivers/watchdog/jz4740_wdt.c +++ b/drivers/watchdog/jz4740_wdt.c @@ -17,18 +17,15 @@ #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/kernel.h> -#include <linux/fs.h> #include <linux/miscdevice.h> #include <linux/watchdog.h> #include <linux/init.h> -#include <linux/bitops.h> #include <linux/platform_device.h> -#include <linux/spinlock.h> -#include <linux/uaccess.h> #include <linux/io.h> #include <linux/device.h> #include <linux/clk.h> #include <linux/slab.h> +#include <linux/err.h> #include <asm/mach-jz4740/timer.h> @@ -41,9 +38,6 @@ #define JZ_WDT_CLOCK_RTC 0x2 #define JZ_WDT_CLOCK_EXT 0x4 -#define WDT_IN_USE 0 -#define WDT_OK_TO_CLOSE 1 - #define JZ_WDT_CLOCK_DIV_SHIFT 3 #define JZ_WDT_CLOCK_DIV_1 (0 << JZ_WDT_CLOCK_DIV_SHIFT) @@ -56,32 +50,44 @@ #define DEFAULT_HEARTBEAT 5 #define MAX_HEARTBEAT 2048 -static struct { - void __iomem *base; - struct resource *mem; - struct clk *rtc_clk; - unsigned long status; -} jz4740_wdt; +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, + "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); -static int heartbeat = DEFAULT_HEARTBEAT; +static unsigned int heartbeat = DEFAULT_HEARTBEAT; +module_param(heartbeat, uint, 0); +MODULE_PARM_DESC(heartbeat, + "Watchdog heartbeat period in seconds from 1 to " + __MODULE_STRING(MAX_HEARTBEAT) ", default " + __MODULE_STRING(DEFAULT_HEARTBEAT)); +struct jz4740_wdt_drvdata { + struct watchdog_device wdt; + void __iomem *base; + struct clk *rtc_clk; +}; -static void jz4740_wdt_service(void) +static int jz4740_wdt_ping(struct watchdog_device *wdt_dev) { - writew(0x0, jz4740_wdt.base + JZ_REG_WDT_TIMER_COUNTER); + struct jz4740_wdt_drvdata *drvdata = watchdog_get_drvdata(wdt_dev); + + writew(0x0, drvdata->base + JZ_REG_WDT_TIMER_COUNTER); + return 0; } -static void jz4740_wdt_set_heartbeat(int new_heartbeat) +static int jz4740_wdt_set_timeout(struct watchdog_device *wdt_dev, + unsigned int new_timeout) { + struct jz4740_wdt_drvdata *drvdata = watchdog_get_drvdata(wdt_dev); unsigned int rtc_clk_rate; unsigned int timeout_value; unsigned short clock_div = JZ_WDT_CLOCK_DIV_1; - heartbeat = new_heartbeat; - - rtc_clk_rate = clk_get_rate(jz4740_wdt.rtc_clk); + rtc_clk_rate = clk_get_rate(drvdata->rtc_clk); - timeout_value = rtc_clk_rate * heartbeat; + timeout_value = rtc_clk_rate * new_timeout; while (timeout_value > 0xffff) { if (clock_div == JZ_WDT_CLOCK_DIV_1024) { /* Requested timeout too high; @@ -93,199 +99,115 @@ static void jz4740_wdt_set_heartbeat(int new_heartbeat) clock_div += (1 << JZ_WDT_CLOCK_DIV_SHIFT); } - writeb(0x0, jz4740_wdt.base + JZ_REG_WDT_COUNTER_ENABLE); - writew(clock_div, jz4740_wdt.base + JZ_REG_WDT_TIMER_CONTROL); + writeb(0x0, drvdata->base + JZ_REG_WDT_COUNTER_ENABLE); + writew(clock_div, drvdata->base + JZ_REG_WDT_TIMER_CONTROL); - writew((u16)timeout_value, jz4740_wdt.base + JZ_REG_WDT_TIMER_DATA); - writew(0x0, jz4740_wdt.base + JZ_REG_WDT_TIMER_COUNTER); + writew((u16)timeout_value, drvdata->base + JZ_REG_WDT_TIMER_DATA); + writew(0x0, drvdata->base + JZ_REG_WDT_TIMER_COUNTER); writew(clock_div | JZ_WDT_CLOCK_RTC, - jz4740_wdt.base + JZ_REG_WDT_TIMER_CONTROL); + drvdata->base + JZ_REG_WDT_TIMER_CONTROL); - writeb(0x1, jz4740_wdt.base + JZ_REG_WDT_COUNTER_ENABLE); -} + writeb(0x1, drvdata->base + JZ_REG_WDT_COUNTER_ENABLE); -static void jz4740_wdt_enable(void) -{ - jz4740_timer_enable_watchdog(); - jz4740_wdt_set_heartbeat(heartbeat); -} - -static void jz4740_wdt_disable(void) -{ - jz4740_timer_disable_watchdog(); - writeb(0x0, jz4740_wdt.base + JZ_REG_WDT_COUNTER_ENABLE); + wdt_dev->timeout = new_timeout; + return 0; } -static int jz4740_wdt_open(struct inode *inode, struct file *file) +static int jz4740_wdt_start(struct watchdog_device *wdt_dev) { - if (test_and_set_bit(WDT_IN_USE, &jz4740_wdt.status)) - return -EBUSY; - - jz4740_wdt_enable(); + jz4740_timer_enable_watchdog(); + jz4740_wdt_set_timeout(wdt_dev, wdt_dev->timeout); - return nonseekable_open(inode, file); + return 0; } -static ssize_t jz4740_wdt_write(struct file *file, const char *data, - size_t len, loff_t *ppos) +static int jz4740_wdt_stop(struct watchdog_device *wdt_dev) { - if (len) { - size_t i; - - clear_bit(WDT_OK_TO_CLOSE, &jz4740_wdt.status); - for (i = 0; i != len; i++) { - char c; + struct jz4740_wdt_drvdata *drvdata = watchdog_get_drvdata(wdt_dev); - if (get_user(c, data + i)) - return -EFAULT; - - if (c == 'V') - set_bit(WDT_OK_TO_CLOSE, &jz4740_wdt.status); - } - jz4740_wdt_service(); - } + jz4740_timer_disable_watchdog(); + writeb(0x0, drvdata->base + JZ_REG_WDT_COUNTER_ENABLE); - return len; + return 0; } -static const struct watchdog_info ident = { - .options = WDIOF_KEEPALIVEPING, +static const struct watchdog_info jz4740_wdt_info = { + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, .identity = "jz4740 Watchdog", }; -static long jz4740_wdt_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - int ret = -ENOTTY; - int heartbeat_seconds; - - switch (cmd) { - case WDIOC_GETSUPPORT: - ret = copy_to_user((struct watchdog_info *)arg, &ident, - sizeof(ident)) ? -EFAULT : 0; - break; - - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - ret = put_user(0, (int *)arg); - break; - - case WDIOC_KEEPALIVE: - jz4740_wdt_service(); - return 0; - - case WDIOC_SETTIMEOUT: - if (get_user(heartbeat_seconds, (int __user *)arg)) - return -EFAULT; - - jz4740_wdt_set_heartbeat(heartbeat_seconds); - return 0; - - case WDIOC_GETTIMEOUT: - return put_user(heartbeat, (int *)arg); - - default: - break; - } - - return ret; -} - -static int jz4740_wdt_release(struct inode *inode, struct file *file) -{ - jz4740_wdt_service(); - - if (test_and_clear_bit(WDT_OK_TO_CLOSE, &jz4740_wdt.status)) - jz4740_wdt_disable(); - - clear_bit(WDT_IN_USE, &jz4740_wdt.status); - return 0; -} - -static const struct file_operations jz4740_wdt_fops = { +static const struct watchdog_ops jz4740_wdt_ops = { .owner = THIS_MODULE, - .llseek = no_llseek, - .write = jz4740_wdt_write, - .unlocked_ioctl = jz4740_wdt_ioctl, - .open = jz4740_wdt_open, - .release = jz4740_wdt_release, -}; - -static struct miscdevice jz4740_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &jz4740_wdt_fops, + .start = jz4740_wdt_start, + .stop = jz4740_wdt_stop, + .ping = jz4740_wdt_ping, + .set_timeout = jz4740_wdt_set_timeout, }; static int __devinit jz4740_wdt_probe(struct platform_device *pdev) { - int ret = 0, size; - struct resource *res; - struct device *dev = &pdev->dev; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { - dev_err(dev, "failed to get memory region resource\n"); - return -ENXIO; + struct jz4740_wdt_drvdata *drvdata; + struct watchdog_device *jz4740_wdt; + struct resource *res; + int ret; + + drvdata = devm_kzalloc(&pdev->dev, sizeof(struct jz4740_wdt_drvdata), + GFP_KERNEL); + if (!drvdata) { + dev_err(&pdev->dev, "Unable to alloacate watchdog device\n"); + return -ENOMEM; } - size = resource_size(res); - jz4740_wdt.mem = request_mem_region(res->start, size, pdev->name); - if (jz4740_wdt.mem == NULL) { - dev_err(dev, "failed to get memory region\n"); - return -EBUSY; - } + if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT) + heartbeat = DEFAULT_HEARTBEAT; - jz4740_wdt.base = ioremap_nocache(res->start, size); - if (jz4740_wdt.base == NULL) { - dev_err(dev, "failed to map memory region\n"); + jz4740_wdt = &drvdata->wdt; + jz4740_wdt->info = &jz4740_wdt_info; + jz4740_wdt->ops = &jz4740_wdt_ops; + jz4740_wdt->timeout = heartbeat; + jz4740_wdt->min_timeout = 1; + jz4740_wdt->max_timeout = MAX_HEARTBEAT; + watchdog_set_nowayout(jz4740_wdt, nowayout); + watchdog_set_drvdata(jz4740_wdt, drvdata); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + drvdata->base = devm_request_and_ioremap(&pdev->dev, res); + if (drvdata->base == NULL) { ret = -EBUSY; - goto err_release_region; + goto err_out; } - jz4740_wdt.rtc_clk = clk_get(NULL, "rtc"); - if (IS_ERR(jz4740_wdt.rtc_clk)) { - dev_err(dev, "cannot find RTC clock\n"); - ret = PTR_ERR(jz4740_wdt.rtc_clk); - goto err_iounmap; + drvdata->rtc_clk = clk_get(NULL, "rtc"); + if (IS_ERR(drvdata->rtc_clk)) { + dev_err(&pdev->dev, "cannot find RTC clock\n"); + ret = PTR_ERR(drvdata->rtc_clk); + goto err_out; } - ret = misc_register(&jz4740_wdt_miscdev); - if (ret < 0) { - dev_err(dev, "cannot register misc device\n"); + ret = watchdog_register_device(&drvdata->wdt); + if (ret < 0) goto err_disable_clk; - } + platform_set_drvdata(pdev, drvdata); return 0; err_disable_clk: - clk_put(jz4740_wdt.rtc_clk); -err_iounmap: - iounmap(jz4740_wdt.base); -err_release_region: - release_mem_region(jz4740_wdt.mem->start, - resource_size(jz4740_wdt.mem)); + clk_put(drvdata->rtc_clk); +err_out: return ret; } - static int __devexit jz4740_wdt_remove(struct platform_device *pdev) { - jz4740_wdt_disable(); - misc_deregister(&jz4740_wdt_miscdev); - clk_put(jz4740_wdt.rtc_clk); + struct jz4740_wdt_drvdata *drvdata = platform_get_drvdata(pdev); - iounmap(jz4740_wdt.base); - jz4740_wdt.base = NULL; - - release_mem_region(jz4740_wdt.mem->start, - resource_size(jz4740_wdt.mem)); - jz4740_wdt.mem = NULL; + jz4740_wdt_stop(&drvdata->wdt); + watchdog_unregister_device(&drvdata->wdt); + clk_put(drvdata->rtc_clk); return 0; } - static struct platform_driver jz4740_wdt_driver = { .probe = jz4740_wdt_probe, .remove = __devexit_p(jz4740_wdt_remove), @@ -299,13 +221,6 @@ module_platform_driver(jz4740_wdt_driver); MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); MODULE_DESCRIPTION("jz4740 Watchdog Driver"); - -module_param(heartbeat, int, 0); -MODULE_PARM_DESC(heartbeat, - "Watchdog heartbeat period in seconds from 1 to " - __MODULE_STRING(MAX_HEARTBEAT) ", default " - __MODULE_STRING(DEFAULT_HEARTBEAT)); - MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:jz4740-wdt"); diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c index 51757a5..59e75d9 100644 --- a/drivers/watchdog/ks8695_wdt.c +++ b/drivers/watchdog/ks8695_wdt.c @@ -8,6 +8,8 @@ * published by the Free Software Foundation. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/bitops.h> #include <linux/errno.h> #include <linux/fs.h> @@ -28,14 +30,14 @@ #define WDT_MAX_TIME 171 /* seconds */ static int wdt_time = WDT_DEFAULT_TIME; -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; module_param(wdt_time, int, 0); MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default=" __MODULE_STRING(WDT_DEFAULT_TIME) ")"); #ifdef CONFIG_WATCHDOG_NOWAYOUT -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); #endif @@ -233,8 +235,8 @@ static int __devinit ks8695wdt_probe(struct platform_device *pdev) if (res) return res; - printk(KERN_INFO "KS8695 Watchdog Timer enabled (%d seconds%s)\n", - wdt_time, nowayout ? ", nowayout" : ""); + pr_info("KS8695 Watchdog Timer enabled (%d seconds%s)\n", + wdt_time, nowayout ? ", nowayout" : ""); return 0; } diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c index d3a63be..a9593a3 100644 --- a/drivers/watchdog/lantiq_wdt.c +++ b/drivers/watchdog/lantiq_wdt.c @@ -7,6 +7,8 @@ * Based on EP93xx wdt driver */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/fs.h> #include <linux/miscdevice.h> @@ -38,7 +40,7 @@ #define LTQ_WDT_DIVIDER 0x40000 #define LTQ_MAX_TIMEOUT ((1 << 16) - 1) /* the reload field is 16 bit */ -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static void __iomem *ltq_wdt_membase; static unsigned long ltq_io_region_clk_rate; @@ -160,7 +162,7 @@ ltq_wdt_release(struct inode *inode, struct file *file) if (ltq_wdt_ok_to_close) ltq_wdt_disable(); else - pr_err("ltq_wdt: watchdog closed without warning\n"); + pr_err("watchdog closed without warning\n"); ltq_wdt_ok_to_close = 0; clear_bit(0, <q_wdt_in_use); @@ -249,7 +251,7 @@ exit_ltq_wdt(void) module_init(init_ltq_wdt); module_exit(exit_ltq_wdt); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); diff --git a/drivers/watchdog/m54xx_wdt.c b/drivers/watchdog/m54xx_wdt.c index 4d43286..663cad8 100644 --- a/drivers/watchdog/m54xx_wdt.c +++ b/drivers/watchdog/m54xx_wdt.c @@ -16,6 +16,8 @@ * warranty of any kind, whether express or implied. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -32,7 +34,7 @@ #include <asm/m54xxsim.h> #include <asm/m54xxgpt.h> -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static unsigned int heartbeat = 30; /* (secs) Default is 0.5 minute */ static unsigned long wdt_status; @@ -166,8 +168,7 @@ static int m54xx_wdt_release(struct inode *inode, struct file *file) if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) wdt_disable(); else { - printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - " - "timer will not stop\n"); + pr_crit("Device closed unexpectedly - timer will not stop\n"); wdt_keepalive(); } clear_bit(WDT_IN_USE, &wdt_status); @@ -196,11 +197,10 @@ static int __init m54xx_wdt_init(void) { if (!request_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4, "Coldfire M54xx Watchdog")) { - printk(KERN_WARNING - "Coldfire M54xx Watchdog : I/O region busy\n"); + pr_warn("I/O region busy\n"); return -EBUSY; } - printk(KERN_INFO "ColdFire watchdog driver is loaded.\n"); + pr_info("driver is loaded\n"); return misc_register(&m54xx_wdt_miscdev); } @@ -220,7 +220,7 @@ MODULE_DESCRIPTION("Coldfire M54xx Watchdog"); module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 30s)"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c index 1332b83..52ed883 100644 --- a/drivers/watchdog/machzwd.c +++ b/drivers/watchdog/machzwd.c @@ -28,6 +28,8 @@ * Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -93,8 +95,8 @@ MODULE_DESCRIPTION("MachZ ZF-Logic Watchdog driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -141,10 +143,10 @@ static unsigned long next_heartbeat; #define ZF_CTIMEOUT 0xffff #ifndef ZF_DEBUG -# define dprintk(format, args...) +#define dprintk(format, args...) #else -# define dprintk(format, args...) printk(KERN_DEBUG PFX \ - ":%s:%d: " format, __func__, __LINE__ , ## args) +#define dprintk(format, args...) \ + pr_debug(":%s:%d: " format, __func__, __LINE__ , ## args) #endif @@ -203,7 +205,7 @@ static void zf_timer_off(void) zf_set_control(ctrl_reg); spin_unlock_irqrestore(&zf_port_lock, flags); - printk(KERN_INFO PFX ": Watchdog timer is now disabled\n"); + pr_info("Watchdog timer is now disabled\n"); } @@ -233,7 +235,7 @@ static void zf_timer_on(void) zf_set_control(ctrl_reg); spin_unlock_irqrestore(&zf_port_lock, flags); - printk(KERN_INFO PFX ": Watchdog timer is now enabled\n"); + pr_info("Watchdog timer is now enabled\n"); } @@ -263,7 +265,7 @@ static void zf_ping(unsigned long data) mod_timer(&zf_timer, jiffies + ZF_HW_TIMEO); } else - printk(KERN_CRIT PFX ": I will reset your machine\n"); + pr_crit("I will reset your machine\n"); } static ssize_t zf_write(struct file *file, const char __user *buf, size_t count, @@ -342,8 +344,7 @@ static int zf_close(struct inode *inode, struct file *file) zf_timer_off(); else { del_timer(&zf_timer); - printk(KERN_ERR PFX ": device file closed unexpectedly. " - "Will not stop the WDT!\n"); + pr_err("device file closed unexpectedly. Will not stop the WDT!\n"); } clear_bit(0, &zf_is_open); zf_expect_close = 0; @@ -390,19 +391,18 @@ static void __init zf_show_action(int act) { static const char * const str[] = { "RESET", "SMI", "NMI", "SCI" }; - printk(KERN_INFO PFX ": Watchdog using action = %s\n", str[act]); + pr_info("Watchdog using action = %s\n", str[act]); } static int __init zf_init(void) { int ret; - printk(KERN_INFO PFX - ": MachZ ZF-Logic Watchdog driver initializing.\n"); + pr_info("MachZ ZF-Logic Watchdog driver initializing\n"); ret = zf_get_ZFL_version(); if (!ret || ret == 0xffff) { - printk(KERN_WARNING PFX ": no ZF-Logic found\n"); + pr_warn("no ZF-Logic found\n"); return -ENODEV; } @@ -414,23 +414,20 @@ static int __init zf_init(void) zf_show_action(action); if (!request_region(ZF_IOBASE, 3, "MachZ ZFL WDT")) { - printk(KERN_ERR "cannot reserve I/O ports at %d\n", - ZF_IOBASE); + pr_err("cannot reserve I/O ports at %d\n", ZF_IOBASE); ret = -EBUSY; goto no_region; } ret = register_reboot_notifier(&zf_notifier); if (ret) { - printk(KERN_ERR "can't register reboot notifier (err=%d)\n", - ret); + pr_err("can't register reboot notifier (err=%d)\n", ret); goto no_reboot; } ret = misc_register(&zf_miscdev); if (ret) { - printk(KERN_ERR "can't misc_register on minor=%d\n", - WATCHDOG_MINOR); + pr_err("can't misc_register on minor=%d\n", WATCHDOG_MINOR); goto no_misc; } diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c index af63ecf..8f4a74e 100644 --- a/drivers/watchdog/max63xx_wdt.c +++ b/drivers/watchdog/max63xx_wdt.c @@ -18,23 +18,20 @@ #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/kernel.h> -#include <linux/fs.h> #include <linux/miscdevice.h> #include <linux/watchdog.h> #include <linux/init.h> #include <linux/bitops.h> #include <linux/platform_device.h> #include <linux/spinlock.h> -#include <linux/uaccess.h> #include <linux/io.h> -#include <linux/device.h> #include <linux/slab.h> #define DEFAULT_HEARTBEAT 60 #define MAX_HEARTBEAT 60 -static int heartbeat = DEFAULT_HEARTBEAT; -static int nowayout = WATCHDOG_NOWAYOUT; +static unsigned int heartbeat = DEFAULT_HEARTBEAT; +static bool nowayout = WATCHDOG_NOWAYOUT; /* * Memory mapping: a single byte, 3 first lower bits to select bit 3 @@ -45,15 +42,8 @@ static int nowayout = WATCHDOG_NOWAYOUT; static DEFINE_SPINLOCK(io_lock); -static unsigned long wdt_status; -#define WDT_IN_USE 0 -#define WDT_RUNNING 1 -#define WDT_OK_TO_CLOSE 2 - static int nodelay; -static struct resource *wdt_mem; static void __iomem *wdt_base; -static struct platform_device *max63xx_pdev; /* * The timeout values used are actually the absolute minimum the chip @@ -117,7 +107,7 @@ max63xx_select_timeout(struct max63xx_timeout *table, int value) return NULL; } -static void max63xx_wdt_ping(void) +static int max63xx_wdt_ping(struct watchdog_device *wdd) { u8 val; @@ -129,15 +119,14 @@ static void max63xx_wdt_ping(void) __raw_writeb(val & ~MAX6369_WDI, wdt_base); spin_unlock(&io_lock); + return 0; } -static void max63xx_wdt_enable(struct max63xx_timeout *entry) +static int max63xx_wdt_start(struct watchdog_device *wdd) { + struct max63xx_timeout *entry = watchdog_get_drvdata(wdd); u8 val; - if (test_and_set_bit(WDT_RUNNING, &wdt_status)) - return; - spin_lock(&io_lock); val = __raw_readb(wdt_base); @@ -149,10 +138,11 @@ static void max63xx_wdt_enable(struct max63xx_timeout *entry) /* check for a edge triggered startup */ if (entry->tdelay == 0) - max63xx_wdt_ping(); + max63xx_wdt_ping(wdd); + return 0; } -static void max63xx_wdt_disable(void) +static int max63xx_wdt_stop(struct watchdog_device *wdd) { u8 val; @@ -164,113 +154,29 @@ static void max63xx_wdt_disable(void) __raw_writeb(val, wdt_base); spin_unlock(&io_lock); - - clear_bit(WDT_RUNNING, &wdt_status); -} - -static int max63xx_wdt_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(WDT_IN_USE, &wdt_status)) - return -EBUSY; - - max63xx_wdt_enable(current_timeout); - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - - return nonseekable_open(inode, file); -} - -static ssize_t max63xx_wdt_write(struct file *file, const char *data, - size_t len, loff_t *ppos) -{ - if (len) { - if (!nowayout) { - size_t i; - - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - for (i = 0; i != len; i++) { - char c; - - if (get_user(c, data + i)) - return -EFAULT; - - if (c == 'V') - set_bit(WDT_OK_TO_CLOSE, &wdt_status); - } - } - - max63xx_wdt_ping(); - } - - return len; + return 0; } -static const struct watchdog_info ident = { - .options = WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING, +static const struct watchdog_info max63xx_wdt_info = { + .options = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, .identity = "max63xx Watchdog", }; -static long max63xx_wdt_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - int ret = -ENOTTY; - - switch (cmd) { - case WDIOC_GETSUPPORT: - ret = copy_to_user((struct watchdog_info *)arg, &ident, - sizeof(ident)) ? -EFAULT : 0; - break; - - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - ret = put_user(0, (int *)arg); - break; - - case WDIOC_KEEPALIVE: - max63xx_wdt_ping(); - ret = 0; - break; - - case WDIOC_GETTIMEOUT: - ret = put_user(heartbeat, (int *)arg); - break; - } - return ret; -} - -static int max63xx_wdt_release(struct inode *inode, struct file *file) -{ - if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) - max63xx_wdt_disable(); - else - dev_crit(&max63xx_pdev->dev, - "device closed unexpectedly - timer will not stop\n"); - - clear_bit(WDT_IN_USE, &wdt_status); - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - - return 0; -} - -static const struct file_operations max63xx_wdt_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = max63xx_wdt_write, - .unlocked_ioctl = max63xx_wdt_ioctl, - .open = max63xx_wdt_open, - .release = max63xx_wdt_release, +static const struct watchdog_ops max63xx_wdt_ops = { + .owner = THIS_MODULE, + .start = max63xx_wdt_start, + .stop = max63xx_wdt_stop, + .ping = max63xx_wdt_ping, }; -static struct miscdevice max63xx_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &max63xx_wdt_fops, +static struct watchdog_device max63xx_wdt_dev = { + .info = &max63xx_wdt_info, + .ops = &max63xx_wdt_ops, }; static int __devinit max63xx_wdt_probe(struct platform_device *pdev) { - int ret = 0; - int size; - struct device *dev = &pdev->dev; + struct resource *wdt_mem; struct max63xx_timeout *table; table = (struct max63xx_timeout *)pdev->id_entry->driver_data; @@ -278,68 +184,34 @@ static int __devinit max63xx_wdt_probe(struct platform_device *pdev) if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT) heartbeat = DEFAULT_HEARTBEAT; - dev_info(dev, "requesting %ds heartbeat\n", heartbeat); + dev_info(&pdev->dev, "requesting %ds heartbeat\n", heartbeat); current_timeout = max63xx_select_timeout(table, heartbeat); if (!current_timeout) { - dev_err(dev, "unable to satisfy heartbeat request\n"); + dev_err(&pdev->dev, "unable to satisfy heartbeat request\n"); return -EINVAL; } - dev_info(dev, "using %ds heartbeat with %ds initial delay\n", + dev_info(&pdev->dev, "using %ds heartbeat with %ds initial delay\n", current_timeout->twd, current_timeout->tdelay); heartbeat = current_timeout->twd; - max63xx_pdev = pdev; - wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (wdt_mem == NULL) { - dev_err(dev, "failed to get memory region resource\n"); - return -ENOENT; - } + wdt_base = devm_request_and_ioremap(&pdev->dev, wdt_mem); + if (!wdt_base) + return -ENOMEM; - size = resource_size(wdt_mem); - if (!request_mem_region(wdt_mem->start, size, pdev->name)) { - dev_err(dev, "failed to get memory region\n"); - return -ENOENT; - } - - wdt_base = ioremap(wdt_mem->start, size); - if (!wdt_base) { - dev_err(dev, "failed to map memory region\n"); - ret = -ENOMEM; - goto out_request; - } + max63xx_wdt_dev.timeout = heartbeat; + watchdog_set_nowayout(&max63xx_wdt_dev, nowayout); + watchdog_set_drvdata(&max63xx_wdt_dev, current_timeout); - ret = misc_register(&max63xx_wdt_miscdev); - if (ret < 0) { - dev_err(dev, "cannot register misc device\n"); - goto out_unmap; - } - - return 0; - -out_unmap: - iounmap(wdt_base); -out_request: - release_mem_region(wdt_mem->start, size); - wdt_mem = NULL; - - return ret; + return watchdog_register_device(&max63xx_wdt_dev); } static int __devexit max63xx_wdt_remove(struct platform_device *pdev) { - misc_deregister(&max63xx_wdt_miscdev); - if (wdt_mem) { - release_mem_region(wdt_mem->start, resource_size(wdt_mem)); - wdt_mem = NULL; - } - - if (wdt_base) - iounmap(wdt_base); - + watchdog_unregister_device(&max63xx_wdt_dev); return 0; } @@ -375,7 +247,7 @@ MODULE_PARM_DESC(heartbeat, __MODULE_STRING(MAX_HEARTBEAT) ", default " __MODULE_STRING(DEFAULT_HEARTBEAT)); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/mixcomwd.c b/drivers/watchdog/mixcomwd.c index bc820d1..37e4b52 100644 --- a/drivers/watchdog/mixcomwd.c +++ b/drivers/watchdog/mixcomwd.c @@ -39,9 +39,10 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #define VERSION "0.6" #define WATCHDOG_NAME "mixcomwd" -#define PFX WATCHDOG_NAME ": " #include <linux/module.h> #include <linux/moduleparam.h> @@ -107,8 +108,8 @@ static int mixcomwd_timer_alive; static DEFINE_TIMER(mixcomwd_timer, mixcomwd_timerfun, 0, 0); static char expect_close; -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -156,15 +157,13 @@ static int mixcomwd_release(struct inode *inode, struct file *file) { if (expect_close == 42) { if (mixcomwd_timer_alive) { - printk(KERN_ERR PFX - "release called while internal timer alive"); + pr_err("release called while internal timer alive\n"); return -EBUSY; } mixcomwd_timer_alive = 1; mod_timer(&mixcomwd_timer, jiffies + 5 * HZ); } else - printk(KERN_CRIT PFX - "WDT device closed unexpectedly. WDT will not stop!\n"); + pr_crit("WDT device closed unexpectedly. WDT will not stop!\n"); clear_bit(0, &mixcomwd_opened); expect_close = 0; @@ -274,22 +273,19 @@ static int __init mixcomwd_init(void) } if (!found) { - printk(KERN_ERR PFX - "No card detected, or port not available.\n"); + pr_err("No card detected, or port not available\n"); return -ENODEV; } ret = misc_register(&mixcomwd_miscdev); if (ret) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto error_misc_register_watchdog; } - printk(KERN_INFO - "MixCOM watchdog driver v%s, watchdog port at 0x%3x\n", - VERSION, watchdog_port); + pr_info("MixCOM watchdog driver v%s, watchdog port at 0x%3x\n", + VERSION, watchdog_port); return 0; @@ -303,8 +299,7 @@ static void __exit mixcomwd_exit(void) { if (!nowayout) { if (mixcomwd_timer_alive) { - printk(KERN_WARNING PFX "I quit now, hardware will" - " probably reboot!\n"); + pr_warn("I quit now, hardware will probably reboot!\n"); del_timer_sync(&mixcomwd_timer); mixcomwd_timer_alive = 0; } diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index 20feb4d..40f7bf1 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -17,6 +17,8 @@ * option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/fs.h> #include <linux/init.h> #include <linux/kernel.h> @@ -60,8 +62,8 @@ module_param(reset, bool, 0); MODULE_PARM_DESC(reset, "Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -96,7 +98,7 @@ static void mpc8xxx_wdt_timer_ping(unsigned long arg) static void mpc8xxx_wdt_pr_warn(const char *msg) { - pr_crit("mpc8xxx_wdt: %s, expect the %s soon!\n", msg, + pr_crit("%s, expect the %s soon!\n", msg, reset ? "reset" : "machine check exception"); } @@ -209,7 +211,7 @@ static int __devinit mpc8xxx_wdt_probe(struct platform_device *ofdev) enabled = in_be32(&wd_base->swcrr) & SWCRR_SWEN; if (!enabled && wdt_type->hw_enabled) { - pr_info("mpc8xxx_wdt: could not be enabled in software\n"); + pr_info("could not be enabled in software\n"); ret = -ENOSYS; goto err_unmap; } @@ -226,9 +228,8 @@ static int __devinit mpc8xxx_wdt_probe(struct platform_device *ofdev) goto err_unmap; #endif - pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d " - "(%d seconds)\n", reset ? "reset" : "interrupt", timeout, - timeout_sec); + pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d (%d seconds)\n", + reset ? "reset" : "interrupt", timeout, timeout_sec); /* * If the watchdog was previously enabled or we're running on @@ -303,7 +304,7 @@ static int mpc8xxx_wdt_init_late(void) ret = misc_register(&mpc8xxx_wdt_miscdev); if (ret) { pr_err("cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + WATCHDOG_MINOR, ret); return ret; } return 0; diff --git a/drivers/watchdog/mpcore_wdt.c b/drivers/watchdog/mpcore_wdt.c index 82ccd36..7c741dc 100644 --- a/drivers/watchdog/mpcore_wdt.c +++ b/drivers/watchdog/mpcore_wdt.c @@ -19,6 +19,9 @@ * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk> * */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -44,7 +47,7 @@ struct mpcore_wdt { char expect_close; }; -static struct platform_device *mpcore_wdt_dev; +static struct platform_device *mpcore_wdt_pdev; static DEFINE_SPINLOCK(wdt_lock); #define TIMER_MARGIN 60 @@ -54,8 +57,8 @@ MODULE_PARM_DESC(mpcore_margin, "MPcore timer margin in seconds. (0 < mpcore_margin < 65536, default=" __MODULE_STRING(TIMER_MARGIN) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -148,7 +151,7 @@ static int mpcore_wdt_set_heartbeat(int t) */ static int mpcore_wdt_open(struct inode *inode, struct file *file) { - struct mpcore_wdt *wdt = platform_get_drvdata(mpcore_wdt_dev); + struct mpcore_wdt *wdt = platform_get_drvdata(mpcore_wdt_pdev); if (test_and_set_bit(0, &wdt->timer_alive)) return -EBUSY; @@ -298,9 +301,9 @@ static long mpcore_wdt_ioctl(struct file *file, unsigned int cmd, * System shutdown handler. Turn off the watchdog if we're * restarting or halting the system. */ -static void mpcore_wdt_shutdown(struct platform_device *dev) +static void mpcore_wdt_shutdown(struct platform_device *pdev) { - struct mpcore_wdt *wdt = platform_get_drvdata(dev); + struct mpcore_wdt *wdt = platform_get_drvdata(pdev); if (system_state == SYSTEM_RESTART || system_state == SYSTEM_HALT) mpcore_wdt_stop(wdt); @@ -324,99 +327,79 @@ static struct miscdevice mpcore_wdt_miscdev = { .fops = &mpcore_wdt_fops, }; -static int __devinit mpcore_wdt_probe(struct platform_device *dev) +static int __devinit mpcore_wdt_probe(struct platform_device *pdev) { struct mpcore_wdt *wdt; struct resource *res; int ret; /* We only accept one device, and it must have an id of -1 */ - if (dev->id != -1) + if (pdev->id != -1) return -ENODEV; - res = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!res) { - ret = -ENODEV; - goto err_out; - } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENODEV; - wdt = kzalloc(sizeof(struct mpcore_wdt), GFP_KERNEL); - if (!wdt) { - ret = -ENOMEM; - goto err_out; + wdt = devm_kzalloc(&pdev->dev, sizeof(struct mpcore_wdt), GFP_KERNEL); + if (!wdt) + return -ENOMEM; + + wdt->dev = &pdev->dev; + wdt->irq = platform_get_irq(pdev, 0); + if (wdt->irq >= 0) { + ret = devm_request_irq(wdt->dev, wdt->irq, mpcore_wdt_fire, 0, + "mpcore_wdt", wdt); + if (ret) { + dev_printk(KERN_ERR, wdt->dev, + "cannot register IRQ%d for watchdog\n", + wdt->irq); + return ret; + } } - wdt->dev = &dev->dev; - wdt->irq = platform_get_irq(dev, 0); - if (wdt->irq < 0) { - ret = -ENXIO; - goto err_free; - } - wdt->base = ioremap(res->start, resource_size(res)); - if (!wdt->base) { - ret = -ENOMEM; - goto err_free; - } + wdt->base = devm_ioremap(wdt->dev, res->start, resource_size(res)); + if (!wdt->base) + return -ENOMEM; - mpcore_wdt_miscdev.parent = &dev->dev; + mpcore_wdt_miscdev.parent = &pdev->dev; ret = misc_register(&mpcore_wdt_miscdev); if (ret) { dev_printk(KERN_ERR, wdt->dev, "cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); - goto err_misc; - } - - ret = request_irq(wdt->irq, mpcore_wdt_fire, 0, "mpcore_wdt", wdt); - if (ret) { - dev_printk(KERN_ERR, wdt->dev, - "cannot register IRQ%d for watchdog\n", wdt->irq); - goto err_irq; + return ret; } mpcore_wdt_stop(wdt); - platform_set_drvdata(dev, wdt); - mpcore_wdt_dev = dev; + platform_set_drvdata(pdev, wdt); + mpcore_wdt_pdev = pdev; return 0; - -err_irq: - misc_deregister(&mpcore_wdt_miscdev); -err_misc: - iounmap(wdt->base); -err_free: - kfree(wdt); -err_out: - return ret; } -static int __devexit mpcore_wdt_remove(struct platform_device *dev) +static int __devexit mpcore_wdt_remove(struct platform_device *pdev) { - struct mpcore_wdt *wdt = platform_get_drvdata(dev); - - platform_set_drvdata(dev, NULL); + platform_set_drvdata(pdev, NULL); misc_deregister(&mpcore_wdt_miscdev); - mpcore_wdt_dev = NULL; + mpcore_wdt_pdev = NULL; - free_irq(wdt->irq, wdt); - iounmap(wdt->base); - kfree(wdt); return 0; } #ifdef CONFIG_PM -static int mpcore_wdt_suspend(struct platform_device *dev, pm_message_t msg) +static int mpcore_wdt_suspend(struct platform_device *pdev, pm_message_t msg) { - struct mpcore_wdt *wdt = platform_get_drvdata(dev); + struct mpcore_wdt *wdt = platform_get_drvdata(pdev); mpcore_wdt_stop(wdt); /* Turn the WDT off */ return 0; } -static int mpcore_wdt_resume(struct platform_device *dev) +static int mpcore_wdt_resume(struct platform_device *pdev) { - struct mpcore_wdt *wdt = platform_get_drvdata(dev); + struct mpcore_wdt *wdt = platform_get_drvdata(pdev); /* re-activate timer */ if (test_bit(0, &wdt->timer_alive)) mpcore_wdt_start(wdt); @@ -442,9 +425,6 @@ static struct platform_driver mpcore_wdt_driver = { }, }; -static char banner[] __initdata = KERN_INFO "MPcore Watchdog Timer: 0.1. " - "mpcore_noboot=%d mpcore_margin=%d sec (nowayout= %d)\n"; - static int __init mpcore_wdt_init(void) { /* @@ -453,11 +433,12 @@ static int __init mpcore_wdt_init(void) */ if (mpcore_wdt_set_heartbeat(mpcore_margin)) { mpcore_wdt_set_heartbeat(TIMER_MARGIN); - printk(KERN_INFO "mpcore_margin value must be 0 < mpcore_margin < 65536, using %d\n", + pr_info("mpcore_margin value must be 0 < mpcore_margin < 65536, using %d\n", TIMER_MARGIN); } - printk(banner, mpcore_noboot, mpcore_margin, nowayout); + pr_info("MPcore Watchdog Timer: 0.1. mpcore_noboot=%d mpcore_margin=%d sec (nowayout= %d)\n", + mpcore_noboot, mpcore_margin, nowayout); return platform_driver_register(&mpcore_wdt_driver); } diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c index 97f8a48..c53d025 100644 --- a/drivers/watchdog/mv64x60_wdt.c +++ b/drivers/watchdog/mv64x60_wdt.c @@ -15,6 +15,8 @@ * or implied. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/fs.h> #include <linux/init.h> #include <linux/kernel.h> @@ -58,8 +60,8 @@ static unsigned int bus_clk; static char expect_close; static DEFINE_SPINLOCK(mv64x60_wdt_spinlock); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -100,7 +102,7 @@ static void mv64x60_wdt_handler_enable(void) if (mv64x60_wdt_toggle_wdc(MV64x60_WDC_ENABLED_FALSE, MV64x60_WDC_ENABLE_SHIFT)) { mv64x60_wdt_service(); - printk(KERN_NOTICE "mv64x60_wdt: watchdog activated\n"); + pr_notice("watchdog activated\n"); } } @@ -108,7 +110,7 @@ static void mv64x60_wdt_handler_disable(void) { if (mv64x60_wdt_toggle_wdc(MV64x60_WDC_ENABLED_TRUE, MV64x60_WDC_ENABLE_SHIFT)) - printk(KERN_NOTICE "mv64x60_wdt: watchdog deactivated\n"); + pr_notice("watchdog deactivated\n"); } static void mv64x60_wdt_set_timeout(unsigned int timeout) @@ -139,8 +141,7 @@ static int mv64x60_wdt_release(struct inode *inode, struct file *file) if (expect_close == 42) mv64x60_wdt_handler_disable(); else { - printk(KERN_CRIT - "mv64x60_wdt: unexpected close, not stopping timer!\n"); + pr_crit("unexpected close, not stopping timer!\n"); mv64x60_wdt_service(); } expect_close = 0; @@ -308,7 +309,7 @@ static struct platform_driver mv64x60_wdt_driver = { static int __init mv64x60_wdt_init(void) { - printk(KERN_INFO "MV64x60 watchdog driver\n"); + pr_info("MV64x60 watchdog driver\n"); return platform_driver_register(&mv64x60_wdt_driver); } diff --git a/drivers/watchdog/nuc900_wdt.c b/drivers/watchdog/nuc900_wdt.c index 529085b..ea4c744 100644 --- a/drivers/watchdog/nuc900_wdt.c +++ b/drivers/watchdog/nuc900_wdt.c @@ -55,8 +55,8 @@ module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. " "(default = " __MODULE_STRING(WDT_HEARTBEAT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/nv_tco.c b/drivers/watchdog/nv_tco.c index 809f41c..6bbb9ef 100644 --- a/drivers/watchdog/nv_tco.c +++ b/drivers/watchdog/nv_tco.c @@ -21,6 +21,8 @@ * Includes, defines, variables, module parameters, ... */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -41,7 +43,6 @@ #define TCO_VERSION "0.01" #define TCO_MODULE_NAME "NV_TCO" #define TCO_DRIVER_NAME TCO_MODULE_NAME ", v" TCO_VERSION -#define PFX TCO_MODULE_NAME ": " /* internal variables */ static unsigned int tcobase; @@ -60,8 +61,8 @@ module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (2<heartbeat<39, " "default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started" " (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -169,8 +170,7 @@ static int nv_tco_release(struct inode *inode, struct file *file) if (tco_expect_close == 42) { tco_timer_stop(); } else { - printk(KERN_CRIT PFX "Unexpected close, not stopping " - "watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); tco_timer_keepalive(); } clear_bit(0, &timer_alive); @@ -323,15 +323,14 @@ static unsigned char __devinit nv_tco_getdevice(void) val &= 0xffff; if (val == 0x0001 || val == 0x0000) { /* Something is wrong here, bar isn't setup */ - printk(KERN_ERR PFX "failed to get tcobase address\n"); + pr_err("failed to get tcobase address\n"); return 0; } val &= 0xff00; tcobase = val + 0x40; if (!request_region(tcobase, 0x10, "NV TCO")) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - tcobase); + pr_err("I/O address 0x%04x already in use\n", tcobase); return 0; } @@ -347,7 +346,7 @@ static unsigned char __devinit nv_tco_getdevice(void) /* Disable SMI caused by TCO */ if (!request_region(MCP51_SMI_EN(tcobase), 4, "NV TCO")) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", + pr_err("I/O address 0x%04x already in use\n", MCP51_SMI_EN(tcobase)); goto out; } @@ -357,7 +356,7 @@ static unsigned char __devinit nv_tco_getdevice(void) val = inl(MCP51_SMI_EN(tcobase)); release_region(MCP51_SMI_EN(tcobase), 4); if (val & MCP51_SMI_EN_TCO) { - printk(KERN_ERR PFX "Could not disable SMI caused by TCO\n"); + pr_err("Could not disable SMI caused by TCO\n"); goto out; } @@ -367,8 +366,7 @@ static unsigned char __devinit nv_tco_getdevice(void) pci_write_config_dword(tco_pci, MCP51_SMBUS_SETUP_B, val); pci_read_config_dword(tco_pci, MCP51_SMBUS_SETUP_B, &val); if (!(val & MCP51_SMBUS_SETUP_B_TCO_REBOOT)) { - printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot " - "disabled by hardware\n"); + pr_err("failed to reset NO_REBOOT flag, reboot disabled by hardware\n"); goto out; } @@ -387,8 +385,8 @@ static int __devinit nv_tco_init(struct platform_device *dev) return -ENODEV; /* Check to see if last reboot was due to watchdog timeout */ - printk(KERN_INFO PFX "Watchdog reboot %sdetected.\n", - inl(TCO_STS(tcobase)) & TCO_STS_TCO2TO_STS ? "" : "not "); + pr_info("Watchdog reboot %sdetected\n", + inl(TCO_STS(tcobase)) & TCO_STS_TCO2TO_STS ? "" : "not "); /* Clear out the old status */ outl(TCO_STS_RESET, TCO_STS(tcobase)); @@ -400,14 +398,14 @@ static int __devinit nv_tco_init(struct platform_device *dev) if (tco_timer_set_heartbeat(heartbeat)) { heartbeat = WATCHDOG_HEARTBEAT; tco_timer_set_heartbeat(heartbeat); - printk(KERN_INFO PFX "heartbeat value must be 2<heartbeat<39, " - "using %d\n", heartbeat); + pr_info("heartbeat value must be 2<heartbeat<39, using %d\n", + heartbeat); } ret = misc_register(&nv_tco_miscdev); if (ret != 0) { - printk(KERN_ERR PFX "cannot register miscdev on minor=%d " - "(err=%d)\n", WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto unreg_region; } @@ -415,8 +413,8 @@ static int __devinit nv_tco_init(struct platform_device *dev) tco_timer_stop(); - printk(KERN_INFO PFX "initialized (0x%04x). heartbeat=%d sec " - "(nowayout=%d)\n", tcobase, heartbeat, nowayout); + pr_info("initialized (0x%04x). heartbeat=%d sec (nowayout=%d)\n", + tcobase, heartbeat, nowayout); return 0; @@ -439,8 +437,7 @@ static void __devexit nv_tco_cleanup(void) pci_write_config_dword(tco_pci, MCP51_SMBUS_SETUP_B, val); pci_read_config_dword(tco_pci, MCP51_SMBUS_SETUP_B, &val); if (val & MCP51_SMBUS_SETUP_B_TCO_REBOOT) { - printk(KERN_CRIT PFX "Couldn't unset REBOOT bit. Machine may " - "soon reset\n"); + pr_crit("Couldn't unset REBOOT bit. Machine may soon reset\n"); } /* Deregister */ @@ -483,8 +480,7 @@ static int __init nv_tco_init_module(void) { int err; - printk(KERN_INFO PFX "NV TCO WatchDog Timer Driver v%s\n", - TCO_VERSION); + pr_info("NV TCO WatchDog Timer Driver v%s\n", TCO_VERSION); err = platform_driver_register(&nv_tco_driver); if (err) @@ -508,7 +504,7 @@ static void __exit nv_tco_cleanup_module(void) { platform_device_unregister(nv_tco_platform_device); platform_driver_unregister(&nv_tco_driver); - printk(KERN_INFO PFX "NV TCO Watchdog Module Unloaded.\n"); + pr_info("NV TCO Watchdog Module Unloaded\n"); } module_init(nv_tco_init_module); diff --git a/drivers/watchdog/octeon-wdt-main.c b/drivers/watchdog/octeon-wdt-main.c index 7c0d863..4612088 100644 --- a/drivers/watchdog/octeon-wdt-main.c +++ b/drivers/watchdog/octeon-wdt-main.c @@ -52,6 +52,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/miscdevice.h> #include <linux/interrupt.h> #include <linux/watchdog.h> @@ -95,8 +97,8 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0 < heartbeat, default=" __MODULE_STRING(WD_TIMO) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, S_IRUGO); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, S_IRUGO); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -201,7 +203,7 @@ static void __init octeon_wdt_build_stage1(void) uasm_resolve_relocs(relocs, labels); len = (int)(p - nmi_stage1_insns); - pr_debug("Synthesized NMI stage 1 handler (%d instructions).\n", len); + pr_debug("Synthesized NMI stage 1 handler (%d instructions)\n", len); pr_debug("\t.set push\n"); pr_debug("\t.set noreorder\n"); @@ -627,7 +629,7 @@ static int octeon_wdt_release(struct inode *inode, struct file *file) do_coundown = 0; octeon_wdt_ping(); } else { - pr_crit("octeon_wdt: WDT device closed unexpectedly. WDT will not stop!\n"); + pr_crit("WDT device closed unexpectedly. WDT will not stop!\n"); } clear_bit(0, &octeon_wdt_is_open); expect_close = 0; @@ -684,12 +686,12 @@ static int __init octeon_wdt_init(void) octeon_wdt_calc_parameters(heartbeat); - pr_info("octeon_wdt: Initial granularity %d Sec.\n", timeout_sec); + pr_info("Initial granularity %d Sec\n", timeout_sec); ret = misc_register(&octeon_wdt_miscdev); if (ret) { - pr_err("octeon_wdt: cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto out; } diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c index f359ab8..55d2f66 100644 --- a/drivers/watchdog/of_xilinx_wdt.c +++ b/drivers/watchdog/of_xilinx_wdt.c @@ -19,6 +19,8 @@ * know the wdt reset interval */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> @@ -99,7 +101,7 @@ static void xwdt_stop(void) iowrite32(0, xdev.base + XWT_TWCSR1_OFFSET); spin_unlock(&spinlock); - printk(KERN_INFO PFX "Stopped!\n"); + pr_info("Stopped!\n"); } static void xwdt_keepalive(void) @@ -165,7 +167,7 @@ static int xwdt_open(struct inode *inode, struct file *file) __module_get(THIS_MODULE); xwdt_start(); - printk(KERN_INFO PFX "Started...\n"); + pr_info("Started...\n"); return nonseekable_open(inode, file); } @@ -175,8 +177,7 @@ static int xwdt_release(struct inode *inode, struct file *file) if (expect_close == 42) { xwdt_stop(); } else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); xwdt_keepalive(); } @@ -300,22 +301,20 @@ static int __devinit xwdt_probe(struct platform_device *pdev) "clock-frequency", NULL); if (pfreq == NULL) { - printk(KERN_WARNING PFX - "The watchdog clock frequency cannot be obtained!\n"); + pr_warn("The watchdog clock frequency cannot be obtained!\n"); no_timeout = 1; } rc = of_address_to_resource(pdev->dev.of_node, 0, &xdev.res); if (rc) { - printk(KERN_WARNING PFX "invalid address!\n"); + pr_warn("invalid address!\n"); return rc; } tmptr = (u32 *)of_get_property(pdev->dev.of_node, "xlnx,wdt-interval", NULL); if (tmptr == NULL) { - printk(KERN_WARNING PFX "Parameter \"xlnx,wdt-interval\"" - " not found in device tree!\n"); + pr_warn("Parameter \"xlnx,wdt-interval\" not found in device tree!\n"); no_timeout = 1; } else { xdev.wdt_interval = *tmptr; @@ -324,8 +323,7 @@ static int __devinit xwdt_probe(struct platform_device *pdev) tmptr = (u32 *)of_get_property(pdev->dev.of_node, "xlnx,wdt-enable-once", NULL); if (tmptr == NULL) { - printk(KERN_WARNING PFX "Parameter \"xlnx,wdt-enable-once\"" - " not found in device tree!\n"); + pr_warn("Parameter \"xlnx,wdt-enable-once\" not found in device tree!\n"); xdev.nowayout = WATCHDOG_NOWAYOUT; } @@ -339,20 +337,20 @@ static int __devinit xwdt_probe(struct platform_device *pdev) if (!request_mem_region(xdev.res.start, xdev.res.end - xdev.res.start + 1, WATCHDOG_NAME)) { rc = -ENXIO; - printk(KERN_ERR PFX "memory request failure!\n"); + pr_err("memory request failure!\n"); goto err_out; } xdev.base = ioremap(xdev.res.start, xdev.res.end - xdev.res.start + 1); if (xdev.base == NULL) { rc = -ENOMEM; - printk(KERN_ERR PFX "ioremap failure!\n"); + pr_err("ioremap failure!\n"); goto release_mem; } rc = xwdt_selftest(); if (rc == XWT_TIMER_FAILED) { - printk(KERN_ERR PFX "SelfTest routine error!\n"); + pr_err("SelfTest routine error!\n"); goto unmap_io; } @@ -360,20 +358,17 @@ static int __devinit xwdt_probe(struct platform_device *pdev) rc = misc_register(&xwdt_miscdev); if (rc) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - xwdt_miscdev.minor, rc); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + xwdt_miscdev.minor, rc); goto unmap_io; } if (no_timeout) - printk(KERN_INFO PFX - "driver loaded (timeout=? sec, nowayout=%d)\n", - xdev.nowayout); + pr_info("driver loaded (timeout=? sec, nowayout=%d)\n", + xdev.nowayout); else - printk(KERN_INFO PFX - "driver loaded (timeout=%d sec, nowayout=%d)\n", - timeout, xdev.nowayout); + pr_info("driver loaded (timeout=%d sec, nowayout=%d)\n", + timeout, xdev.nowayout); expect_close = 0; clear_bit(0, &driver_open); diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c index d19ff51..8285d65 100644 --- a/drivers/watchdog/omap_wdt.c +++ b/drivers/watchdog/omap_wdt.c @@ -26,6 +26,8 @@ * Use the driver model and standard identifiers; handle bigger timeouts. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> @@ -183,7 +185,7 @@ static int omap_wdt_release(struct inode *inode, struct file *file) pm_runtime_put_sync(wdev->dev); #else - printk(KERN_CRIT "omap_wdt: Unexpected close, not stopping!\n"); + pr_crit("Unexpected close, not stopping!\n"); #endif wdev->omap_wdt_users = 0; diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 1368e4c..788aa15 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -10,6 +10,8 @@ * warranty of any kind, whether express or implied. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -36,7 +38,7 @@ #define WDT_IN_USE 0 #define WDT_OK_TO_CLOSE 1 -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static int heartbeat = -1; /* module parameter (seconds) */ static unsigned int wdt_max_duration; /* (seconds) */ static unsigned int wdt_tclk; @@ -210,8 +212,7 @@ static int orion_wdt_release(struct inode *inode, struct file *file) if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) orion_wdt_disable(); else - printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - " - "timer will not stop\n"); + pr_crit("Device closed unexpectedly - timer will not stop\n"); clear_bit(WDT_IN_USE, &wdt_status); clear_bit(WDT_OK_TO_CLOSE, &wdt_status); @@ -243,7 +244,7 @@ static int __devinit orion_wdt_probe(struct platform_device *pdev) if (pdata) { wdt_tclk = pdata->tclk; } else { - printk(KERN_ERR "Orion Watchdog misses platform data\n"); + pr_err("misses platform data\n"); return -ENODEV; } @@ -263,8 +264,8 @@ static int __devinit orion_wdt_probe(struct platform_device *pdev) if (ret) return ret; - printk(KERN_INFO "Orion Watchdog Timer: Initial timeout %d sec%s\n", - heartbeat, nowayout ? ", nowayout" : ""); + pr_info("Initial timeout %d sec%s\n", + heartbeat, nowayout ? ", nowayout" : ""); return 0; } @@ -308,7 +309,7 @@ MODULE_DESCRIPTION("Orion Processor Watchdog"); module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Initial watchdog heartbeat in seconds"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c index e78d899..d5bf112 100644 --- a/drivers/watchdog/pc87413_wdt.c +++ b/drivers/watchdog/pc87413_wdt.c @@ -18,6 +18,8 @@ * Release 1.1 */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/types.h> #include <linux/miscdevice.h> @@ -42,7 +44,6 @@ #define VERSION "1.1" #define MODNAME "pc87413 WDT" -#define PFX MODNAME ": " #define DPFX MODNAME " - DEBUG: " #define WDT_INDEX_IO_PORT (io+0) /* I/O port base (index register) */ @@ -65,7 +66,7 @@ static char expect_close; /* is the close expected? */ static DEFINE_SPINLOCK(io_lock); /* to guard us from io races */ -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; /* -- Low level function ----------------------------------------*/ @@ -87,7 +88,7 @@ static inline void pc87413_select_wdt_out(void) outb_p(cr_data, WDT_DATA_IO_PORT); #ifdef DEBUG - printk(KERN_INFO DPFX + pr_info(DPFX "Select multiple pin,pin55,as WDT output: Bit7 to 1: %d\n", cr_data); #endif @@ -111,7 +112,7 @@ static inline void pc87413_enable_swc(void) outb_p(cr_data, WDT_DATA_IO_PORT); /* Index0x30_bit0P1 */ #ifdef DEBUG - printk(KERN_INFO DPFX "pc87413 - Enable SWC functions\n"); + pr_info(DPFX "pc87413 - Enable SWC functions\n"); #endif } @@ -132,7 +133,7 @@ static void pc87413_get_swc_base_addr(void) swc_base_addr = (addr_h << 8) + addr_l; #ifdef DEBUG - printk(KERN_INFO DPFX + pr_info(DPFX "Read SWC I/O Base Address: low %d, high %d, res %d\n", addr_l, addr_h, swc_base_addr); #endif @@ -145,7 +146,7 @@ static inline void pc87413_swc_bank3(void) /* Step 4: Select Bank3 of SWC */ outb_p(inb(swc_base_addr + 0x0f) | 0x03, swc_base_addr + 0x0f); #ifdef DEBUG - printk(KERN_INFO DPFX "Select Bank3 of SWC\n"); + pr_info(DPFX "Select Bank3 of SWC\n"); #endif } @@ -156,7 +157,7 @@ static inline void pc87413_programm_wdto(char pc87413_time) /* Step 5: Programm WDTO, Twd. */ outb_p(pc87413_time, swc_base_addr + WDTO); #ifdef DEBUG - printk(KERN_INFO DPFX "Set WDTO to %d minutes\n", pc87413_time); + pr_info(DPFX "Set WDTO to %d minutes\n", pc87413_time); #endif } @@ -167,7 +168,7 @@ static inline void pc87413_enable_wden(void) /* Step 6: Enable WDEN */ outb_p(inb(swc_base_addr + WDCTL) | 0x01, swc_base_addr + WDCTL); #ifdef DEBUG - printk(KERN_INFO DPFX "Enable WDEN\n"); + pr_info(DPFX "Enable WDEN\n"); #endif } @@ -177,7 +178,7 @@ static inline void pc87413_enable_sw_wd_tren(void) /* Enable SW_WD_TREN */ outb_p(inb(swc_base_addr + WDCFG) | 0x80, swc_base_addr + WDCFG); #ifdef DEBUG - printk(KERN_INFO DPFX "Enable SW_WD_TREN\n"); + pr_info(DPFX "Enable SW_WD_TREN\n"); #endif } @@ -188,7 +189,7 @@ static inline void pc87413_disable_sw_wd_tren(void) /* Disable SW_WD_TREN */ outb_p(inb(swc_base_addr + WDCFG) & 0x7f, swc_base_addr + WDCFG); #ifdef DEBUG - printk(KERN_INFO DPFX "pc87413 - Disable SW_WD_TREN\n"); + pr_info(DPFX "pc87413 - Disable SW_WD_TREN\n"); #endif } @@ -199,7 +200,7 @@ static inline void pc87413_enable_sw_wd_trg(void) /* Enable SW_WD_TRG */ outb_p(inb(swc_base_addr + WDCTL) | 0x80, swc_base_addr + WDCTL); #ifdef DEBUG - printk(KERN_INFO DPFX "pc87413 - Enable SW_WD_TRG\n"); + pr_info(DPFX "pc87413 - Enable SW_WD_TRG\n"); #endif } @@ -210,7 +211,7 @@ static inline void pc87413_disable_sw_wd_trg(void) /* Disable SW_WD_TRG */ outb_p(inb(swc_base_addr + WDCTL) & 0x7f, swc_base_addr + WDCTL); #ifdef DEBUG - printk(KERN_INFO DPFX "Disable SW_WD_TRG\n"); + pr_info(DPFX "Disable SW_WD_TRG\n"); #endif } @@ -284,8 +285,7 @@ static int pc87413_open(struct inode *inode, struct file *file) /* Reload and activate timer */ pc87413_refresh(); - printk(KERN_INFO MODNAME - "Watchdog enabled. Timeout set to %d minute(s).\n", timeout); + pr_info("Watchdog enabled. Timeout set to %d minute(s).\n", timeout); return nonseekable_open(inode, file); } @@ -308,11 +308,9 @@ static int pc87413_release(struct inode *inode, struct file *file) if (expect_close == 42) { pc87413_disable(); - printk(KERN_INFO MODNAME - "Watchdog disabled, sleeping again...\n"); + pr_info("Watchdog disabled, sleeping again...\n"); } else { - printk(KERN_CRIT MODNAME - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); pc87413_refresh(); } clear_bit(0, &timer_enabled); @@ -428,7 +426,7 @@ static long pc87413_ioctl(struct file *file, unsigned int cmd, case WDIOC_KEEPALIVE: pc87413_refresh(); #ifdef DEBUG - printk(KERN_INFO DPFX "keepalive\n"); + pr_info(DPFX "keepalive\n"); #endif return 0; case WDIOC_SETTIMEOUT: @@ -508,7 +506,7 @@ static int __init pc87413_init(void) { int ret; - printk(KERN_INFO PFX "Version " VERSION " at io 0x%X\n", + pr_info("Version " VERSION " at io 0x%X\n", WDT_INDEX_IO_PORT); if (!request_muxed_region(io, 2, MODNAME)) @@ -516,26 +514,23 @@ static int __init pc87413_init(void) ret = register_reboot_notifier(&pc87413_notifier); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); } ret = misc_register(&pc87413_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto reboot_unreg; } - printk(KERN_INFO PFX "initialized. timeout=%d min \n", timeout); + pr_info("initialized. timeout=%d min\n", timeout); pc87413_select_wdt_out(); pc87413_enable_swc(); pc87413_get_swc_base_addr(); if (!request_region(swc_base_addr, 0x20, MODNAME)) { - printk(KERN_ERR PFX - "cannot request SWC region at 0x%x\n", swc_base_addr); + pr_err("cannot request SWC region at 0x%x\n", swc_base_addr); ret = -EBUSY; goto misc_unreg; } @@ -568,14 +563,14 @@ static void __exit pc87413_exit(void) /* Stop the timer before we leave */ if (!nowayout) { pc87413_disable(); - printk(KERN_INFO MODNAME "Watchdog disabled.\n"); + pr_info("Watchdog disabled\n"); } misc_deregister(&pc87413_miscdev); unregister_reboot_notifier(&pc87413_notifier); release_region(swc_base_addr, 0x20); - printk(KERN_INFO MODNAME " watchdog component driver removed.\n"); + pr_info("watchdog component driver removed\n"); } module_init(pc87413_init); @@ -597,7 +592,7 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in minutes (default=" __MODULE_STRING(DEFAULT_TIMEOUT) ")."); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c index 06f7922..75694cf 100644 --- a/drivers/watchdog/pcwd.c +++ b/drivers/watchdog/pcwd.c @@ -51,6 +51,8 @@ * http://www.pcwatchdog.com/ */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #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) */ @@ -75,7 +77,6 @@ #define WATCHDOG_DATE "18 Feb 2007" #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 "\n" /* @@ -203,8 +204,8 @@ 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); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -220,8 +221,7 @@ static int send_isa_command(int cmd) int port0, last_port0; /* Double read for stabilising */ if (debug >= DEBUG) - printk(KERN_DEBUG PFX "sending following data cmd=0x%02x\n", - cmd); + pr_debug("sending following data cmd=0x%02x\n", cmd); /* The WCMD bit must be 1 and the command is only 4 bits in size */ control_status = (cmd & 0x0F) | WD_WCMD; @@ -240,9 +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", - cmd, port0, last_port0); + pr_debug("received following data for cmd=0x%02x: port0=0x%02x last_port0=0x%02x\n", + cmd, port0, last_port0); return port0; } @@ -271,8 +270,7 @@ static int set_command_mode(void) pcwd_private.command_mode = found; if (debug >= DEBUG) - printk(KERN_DEBUG PFX "command_mode=%d\n", - pcwd_private.command_mode); + pr_debug("command_mode=%d\n", pcwd_private.command_mode); return found; } @@ -288,8 +286,7 @@ static void unset_command_mode(void) pcwd_private.command_mode = 0; if (debug >= DEBUG) - printk(KERN_DEBUG PFX "command_mode=%d\n", - pcwd_private.command_mode); + pr_debug("command_mode=%d\n", pcwd_private.command_mode); } static inline void pcwd_check_temperature_support(void) @@ -336,17 +333,14 @@ static void pcwd_show_card_info(void) /* Get some extra info from the hardware (in command/debug/diag mode) */ if (pcwd_private.revision == PCWD_REVISION_A) - printk(KERN_INFO PFX - "ISA-PC Watchdog (REV.A) detected at port 0x%04x\n", - pcwd_private.io_addr); + pr_info("ISA-PC Watchdog (REV.A) detected at port 0x%04x\n", + 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", + pr_info("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", + pr_info("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")); @@ -359,22 +353,18 @@ static void pcwd_show_card_info(void) } if (pcwd_private.supports_temp) - printk(KERN_INFO PFX "Temperature Option Detected\n"); + pr_info("Temperature Option Detected\n"); if (pcwd_private.boot_status & WDIOF_CARDRESET) - printk(KERN_INFO PFX - "Previous reboot was caused by the card\n"); + pr_info("Previous reboot was caused by the card\n"); if (pcwd_private.boot_status & WDIOF_OVERHEAT) { - printk(KERN_EMERG PFX - "Card senses a CPU Overheat. Panicking!\n"); - printk(KERN_EMERG PFX - "CPU Overheat\n"); + pr_emerg("Card senses a CPU Overheat. Panicking!\n"); + pr_emerg("CPU Overheat\n"); } if (pcwd_private.boot_status == 0) - printk(KERN_INFO PFX - "No previous trip detected - Cold boot or reset\n"); + pr_info("No previous trip detected - Cold boot or reset\n"); } static void pcwd_timer_ping(unsigned long data) @@ -404,8 +394,7 @@ static void pcwd_timer_ping(unsigned long data) spin_unlock(&pcwd_private.io_lock); } else { - printk(KERN_WARNING PFX - "Heartbeat lost! Will not ping the watchdog\n"); + pr_warn("Heartbeat lost! Will not ping the watchdog\n"); } } @@ -426,13 +415,13 @@ static int pcwd_start(void) stat_reg = inb_p(pcwd_private.io_addr + 2); spin_unlock(&pcwd_private.io_lock); if (stat_reg & WD_WDIS) { - printk(KERN_INFO PFX "Could not start watchdog\n"); + pr_info("Could not start watchdog\n"); return -EIO; } } if (debug >= VERBOSE) - printk(KERN_DEBUG PFX "Watchdog started\n"); + pr_debug("Watchdog started\n"); return 0; } @@ -454,13 +443,13 @@ static int pcwd_stop(void) stat_reg = inb_p(pcwd_private.io_addr + 2); spin_unlock(&pcwd_private.io_lock); if ((stat_reg & WD_WDIS) == 0) { - printk(KERN_INFO PFX "Could not stop watchdog\n"); + pr_info("Could not stop watchdog\n"); return -EIO; } } if (debug >= VERBOSE) - printk(KERN_DEBUG PFX "Watchdog stopped\n"); + pr_debug("Watchdog stopped\n"); return 0; } @@ -471,7 +460,7 @@ static int pcwd_keepalive(void) pcwd_private.next_heartbeat = jiffies + (heartbeat * HZ); if (debug >= DEBUG) - printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n"); + pr_debug("Watchdog keepalive signal send\n"); return 0; } @@ -484,8 +473,7 @@ static int pcwd_set_heartbeat(int t) heartbeat = t; if (debug >= VERBOSE) - printk(KERN_DEBUG PFX "New heartbeat: %d\n", - heartbeat); + pr_debug("New heartbeat: %d\n", heartbeat); return 0; } @@ -518,8 +506,7 @@ static int pcwd_get_status(int *status) if (control_status & WD_T110) { *status |= WDIOF_OVERHEAT; if (temp_panic) { - printk(KERN_INFO PFX - "Temperature overheat trip!\n"); + pr_info("Temperature overheat trip!\n"); kernel_power_off(); } } @@ -530,8 +517,7 @@ static int pcwd_get_status(int *status) if (control_status & WD_REVC_TTRP) { *status |= WDIOF_OVERHEAT; if (temp_panic) { - printk(KERN_INFO PFX - "Temperature overheat trip!\n"); + pr_info("Temperature overheat trip!\n"); kernel_power_off(); } } @@ -548,16 +534,14 @@ static int pcwd_clear_status(void) spin_lock(&pcwd_private.io_lock); if (debug >= VERBOSE) - printk(KERN_INFO PFX - "clearing watchdog trip status\n"); + pr_info("clearing watchdog trip status\n"); control_status = inb_p(pcwd_private.io_addr + 1); if (debug >= DEBUG) { - printk(KERN_DEBUG PFX "status was: 0x%02x\n", - control_status); - printk(KERN_DEBUG PFX "sending: 0x%02x\n", - (control_status & WD_REVC_R2DS)); + pr_debug("status was: 0x%02x\n", control_status); + pr_debug("sending: 0x%02x\n", + (control_status & WD_REVC_R2DS)); } /* clear reset status & Keep Relay 2 disable state as it is */ @@ -588,8 +572,7 @@ static int pcwd_get_temperature(int *temperature) spin_unlock(&pcwd_private.io_lock); if (debug >= DEBUG) { - printk(KERN_DEBUG PFX "temperature is: %d F\n", - *temperature); + pr_debug("temperature is: %d F\n", *temperature); } return 0; @@ -720,8 +703,7 @@ static int pcwd_close(struct inode *inode, struct file *file) if (expect_close == 42) pcwd_stop(); else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); pcwd_keepalive(); } expect_close = 0; @@ -828,11 +810,10 @@ static int __devinit pcwd_isa_match(struct device *dev, unsigned int id) int retval; if (debug >= DEBUG) - printk(KERN_DEBUG PFX "pcwd_isa_match id=%d\n", - id); + pr_debug("pcwd_isa_match id=%d\n", id); if (!request_region(base_addr, 4, "PCWD")) { - printk(KERN_INFO PFX "Port 0x%04x unavailable\n", base_addr); + pr_info("Port 0x%04x unavailable\n", base_addr); return 0; } @@ -870,21 +851,20 @@ static int __devinit pcwd_isa_probe(struct device *dev, unsigned int id) int ret; if (debug >= DEBUG) - printk(KERN_DEBUG PFX "pcwd_isa_probe id=%d\n", - id); + pr_debug("pcwd_isa_probe id=%d\n", id); cards_found++; if (cards_found == 1) - printk(KERN_INFO PFX "v%s Ken Hollis (kenji@bitgate.com)\n", + pr_info("v%s Ken Hollis (kenji@bitgate.com)\n", WATCHDOG_VERSION); if (cards_found > 1) { - printk(KERN_ERR PFX "This driver only supports 1 device\n"); + pr_err("This driver only supports 1 device\n"); return -ENODEV; } if (pcwd_ioports[id] == 0x0000) { - printk(KERN_ERR PFX "No I/O-Address for card detected\n"); + pr_err("No I/O-Address for card detected\n"); return -ENODEV; } pcwd_private.io_addr = pcwd_ioports[id]; @@ -896,8 +876,8 @@ static int __devinit pcwd_isa_probe(struct device *dev, unsigned int id) if (!request_region(pcwd_private.io_addr, (pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4, "PCWD")) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - pcwd_private.io_addr); + pr_err("I/O address 0x%04x already in use\n", + pcwd_private.io_addr); ret = -EIO; goto error_request_region; } @@ -932,30 +912,27 @@ static int __devinit pcwd_isa_probe(struct device *dev, unsigned int id) if not reset to the default */ if (pcwd_set_heartbeat(heartbeat)) { pcwd_set_heartbeat(WATCHDOG_HEARTBEAT); - printk(KERN_INFO PFX - "heartbeat value must be 2 <= heartbeat <= 7200, using %d\n", - WATCHDOG_HEARTBEAT); + pr_info("heartbeat value must be 2 <= heartbeat <= 7200, using %d\n", + WATCHDOG_HEARTBEAT); } if (pcwd_private.supports_temp) { ret = misc_register(&temp_miscdev); if (ret) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - TEMP_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + TEMP_MINOR, ret); goto error_misc_register_temp; } } ret = misc_register(&pcwd_miscdev); if (ret) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto error_misc_register_watchdog; } - printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n", + pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n", heartbeat, nowayout); return 0; @@ -975,8 +952,7 @@ error_request_region: static int __devexit pcwd_isa_remove(struct device *dev, unsigned int id) { if (debug >= DEBUG) - printk(KERN_DEBUG PFX "pcwd_isa_remove id=%d\n", - id); + pr_debug("pcwd_isa_remove id=%d\n", id); if (!pcwd_private.io_addr) return 1; @@ -1000,8 +976,7 @@ static int __devexit pcwd_isa_remove(struct device *dev, unsigned int id) static void pcwd_isa_shutdown(struct device *dev, unsigned int id) { if (debug >= DEBUG) - printk(KERN_DEBUG PFX "pcwd_isa_shutdown id=%d\n", - id); + pr_debug("pcwd_isa_shutdown id=%d\n", id); pcwd_stop(); } @@ -1025,7 +1000,7 @@ static int __init pcwd_init_module(void) static void __exit pcwd_cleanup_module(void) { isa_unregister_driver(&pcwd_isa_driver); - printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); + pr_info("Watchdog Module Unloaded\n"); } module_init(pcwd_init_module); diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c index b8d14f8..c891399 100644 --- a/drivers/watchdog/pcwd_pci.c +++ b/drivers/watchdog/pcwd_pci.c @@ -32,6 +32,8 @@ * Includes, defines, variables, module parameters, ... */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #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) */ @@ -54,8 +56,7 @@ #define WATCHDOG_VERSION "1.03" #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 "\n" +#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION /* Stuff for the PCI ID's */ #ifndef PCI_VENDOR_ID_QUICKLOGIC @@ -145,8 +146,8 @@ 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); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -159,8 +160,8 @@ 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); + pr_debug("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. @@ -185,12 +186,10 @@ static int send_command(int cmd, int *msb, int *lsb) if (debug >= DEBUG) { if (got_response) { - printk(KERN_DEBUG PFX - "time to process command was: %d ms\n", - count); + pr_debug("time to process command was: %d ms\n", + count); } else { - printk(KERN_DEBUG PFX - "card did not respond on command!\n"); + pr_debug("card did not respond on command!\n"); } } @@ -203,9 +202,8 @@ 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", - cmd, *msb, *lsb); + pr_debug("received following data for cmd=0x%02x: msb=0x%02x lsb=0x%02x\n", + cmd, *msb, *lsb); } spin_unlock(&pcipcwd_private.io_lock); @@ -243,27 +241,23 @@ 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", + pr_info("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", + pr_info("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"); + pr_info("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"); + pr_info("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"); + pr_info("No previous trip detected - Cold boot or reset\n"); } static int pcipcwd_start(void) @@ -278,12 +272,12 @@ static int pcipcwd_start(void) spin_unlock(&pcipcwd_private.io_lock); if (stat_reg & WD_PCI_WDIS) { - printk(KERN_ERR PFX "Card timer not enabled\n"); + pr_err("Card timer not enabled\n"); return -1; } if (debug >= VERBOSE) - printk(KERN_DEBUG PFX "Watchdog started\n"); + pr_debug("Watchdog started\n"); return 0; } @@ -303,13 +297,12 @@ 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"); + pr_err("Card did not acknowledge disable attempt\n"); return -1; } if (debug >= VERBOSE) - printk(KERN_DEBUG PFX "Watchdog stopped\n"); + pr_debug("Watchdog stopped\n"); return 0; } @@ -322,7 +315,7 @@ static int pcipcwd_keepalive(void) spin_unlock(&pcipcwd_private.io_lock); if (debug >= DEBUG) - printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n"); + pr_debug("Watchdog keepalive signal send\n"); return 0; } @@ -340,8 +333,7 @@ static int pcipcwd_set_heartbeat(int t) heartbeat = t; if (debug >= VERBOSE) - printk(KERN_DEBUG PFX "New heartbeat: %d\n", - heartbeat); + pr_debug("New heartbeat: %d\n", heartbeat); return 0; } @@ -357,12 +349,11 @@ static int pcipcwd_get_status(int *status) if (control_status & WD_PCI_TTRP) { *status |= WDIOF_OVERHEAT; if (temp_panic) - panic(PFX "Temperature overheat trip!\n"); + panic(KBUILD_MODNAME ": Temperature overheat trip!\n"); } if (debug >= DEBUG) - printk(KERN_DEBUG PFX "Control Status #1: 0x%02x\n", - control_status); + pr_debug("Control Status #1: 0x%02x\n", control_status); return 0; } @@ -374,14 +365,14 @@ static int pcipcwd_clear_status(void) int reset_counter; if (debug >= VERBOSE) - printk(KERN_INFO PFX "clearing watchdog trip status & LED\n"); + pr_info("clearing watchdog trip status & LED\n"); control_status = inb_p(pcipcwd_private.io_addr + 1); if (debug >= DEBUG) { - printk(KERN_DEBUG PFX "status was: 0x%02x\n", control_status); - printk(KERN_DEBUG PFX "sending: 0x%02x\n", - (control_status & WD_PCI_R2DS) | WD_PCI_WTRP); + pr_debug("status was: 0x%02x\n", control_status); + pr_debug("sending: 0x%02x\n", + (control_status & WD_PCI_R2DS) | WD_PCI_WTRP); } /* clear trip status & LED and keep mode of relay 2 */ @@ -394,8 +385,7 @@ static int pcipcwd_clear_status(void) send_command(CMD_GET_CLEAR_RESET_COUNT, &msb, &reset_counter); if (debug >= DEBUG) { - printk(KERN_DEBUG PFX "reset count was: 0x%02x\n", - reset_counter); + pr_debug("reset count was: 0x%02x\n", reset_counter); } return 0; @@ -418,8 +408,7 @@ static int pcipcwd_get_temperature(int *temperature) *temperature = (*temperature * 9 / 5) + 32; if (debug >= DEBUG) { - printk(KERN_DEBUG PFX "temperature is: %d F\n", - *temperature); + pr_debug("temperature is: %d F\n", *temperature); } return 0; @@ -437,8 +426,7 @@ static int pcipcwd_get_timeleft(int *time_left) *time_left = (msb << 8) + lsb; if (debug >= VERBOSE) - printk(KERN_DEBUG PFX "Time left before next reboot: %d\n", - *time_left); + pr_debug("Time left before next reboot: %d\n", *time_left); return 0; } @@ -583,8 +571,7 @@ 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"); + pr_err("Attempt to open already opened device\n"); return -EBUSY; } @@ -602,8 +589,7 @@ 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"); + pr_crit("Unexpected close, not stopping watchdog!\n"); pcipcwd_keepalive(); } expect_release = 0; @@ -703,20 +689,20 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev, cards_found++; if (cards_found == 1) - printk(KERN_INFO PFX DRIVER_VERSION); + pr_info("%s\n", DRIVER_VERSION); if (cards_found > 1) { - printk(KERN_ERR PFX "This driver only supports 1 device\n"); + pr_err("This driver only supports 1 device\n"); return -ENODEV; } if (pci_enable_device(pdev)) { - printk(KERN_ERR PFX "Not possible to enable PCI Device\n"); + pr_err("Not possible to enable PCI Device\n"); return -ENODEV; } if (pci_resource_start(pdev, 0) == 0x0000) { - printk(KERN_ERR PFX "No I/O-Address for card detected\n"); + pr_err("No I/O-Address for card detected\n"); ret = -ENODEV; goto err_out_disable_device; } @@ -725,8 +711,8 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev, pcipcwd_private.io_addr = pci_resource_start(pdev, 0); if (pci_request_regions(pdev, WATCHDOG_NAME)) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - (int) pcipcwd_private.io_addr); + pr_err("I/O address 0x%04x already in use\n", + (int) pcipcwd_private.io_addr); ret = -EIO; goto err_out_disable_device; } @@ -755,36 +741,33 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev, * 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", + pr_info("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); + pr_err("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); + pr_err("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", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto err_out_misc_deregister; } - printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n", + pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n", heartbeat, nowayout); return 0; @@ -842,7 +825,7 @@ static void __exit pcipcwd_cleanup_module(void) { pci_unregister_driver(&pcipcwd_driver); - printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); + pr_info("Watchdog Module Unloaded\n"); } module_init(pcipcwd_init_module); diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c index d8de1dd..7b14d18 100644 --- a/drivers/watchdog/pcwd_usb.c +++ b/drivers/watchdog/pcwd_usb.c @@ -24,6 +24,8 @@ * http://www.berkprod.com/ or http://www.pcwatchdog.com/ */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #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) */ @@ -42,17 +44,23 @@ #include <linux/hid.h> /* For HID_REQ_SET_REPORT & HID_DT_REPORT */ #include <linux/uaccess.h> /* For copy_to_user/put_user/... */ - #ifdef CONFIG_USB_DEBUG - static int debug = 1; +static int debug = 1; #else - static int debug; +static int debug; #endif /* Use our own dbg macro */ + #undef dbg -#define dbg(format, arg...) \ - do { if (debug) printk(KERN_DEBUG PFX format "\n" , ## arg); } while (0) +#ifndef DEBUG +#define DEBUG +#endif +#define dbg(format, ...) \ +do { \ + if (debug) \ + pr_debug(format "\n", ##__VA_ARGS__); \ +} while (0) /* Module and Version Information */ #define DRIVER_VERSION "1.02" @@ -60,7 +68,6 @@ #define DRIVER_DESC "Berkshire USB-PC Watchdog driver" #define DRIVER_LICENSE "GPL" #define DRIVER_NAME "pcwd_usb" -#define PFX DRIVER_NAME ": " MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); @@ -80,8 +87,8 @@ 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); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -220,8 +227,8 @@ 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); + pr_err("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, @@ -284,8 +291,7 @@ static int usb_pcwd_start(struct usb_pcwd_private *usb_pcwd) &msb, &lsb); if ((retval == 0) || (lsb == 0)) { - printk(KERN_ERR PFX - "Card did not acknowledge enable attempt\n"); + pr_err("Card did not acknowledge enable attempt\n"); return -1; } @@ -303,8 +309,7 @@ static int usb_pcwd_stop(struct usb_pcwd_private *usb_pcwd) &msb, &lsb); if ((retval == 0) || (lsb != 0)) { - printk(KERN_ERR PFX - "Card did not acknowledge disable attempt\n"); + pr_err("Card did not acknowledge disable attempt\n"); return -1; } @@ -506,8 +511,7 @@ 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"); + pr_crit("Unexpected close, not stopping watchdog!\n"); usb_pcwd_keepalive(usb_pcwd_device); } expect_release = 0; @@ -627,7 +631,7 @@ static int usb_pcwd_probe(struct usb_interface *interface, cards_found++; if (cards_found > 1) { - printk(KERN_ERR PFX "This driver only supports 1 device\n"); + pr_err("This driver only supports 1 device\n"); return -ENODEV; } @@ -636,8 +640,7 @@ static int usb_pcwd_probe(struct usb_interface *interface, /* 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"); + pr_err("The device isn't a Human Interface Device\n"); return -ENODEV; } @@ -646,7 +649,7 @@ static int usb_pcwd_probe(struct usb_interface *interface, 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"); + pr_err("Couldn't find an INTR & IN endpoint\n"); return -ENODEV; } @@ -657,7 +660,7 @@ static int usb_pcwd_probe(struct usb_interface *interface, /* allocate memory for our device and initialize it */ usb_pcwd = kzalloc(sizeof(struct usb_pcwd_private), GFP_KERNEL); if (usb_pcwd == NULL) { - printk(KERN_ERR PFX "Out of memory\n"); + pr_err("Out of memory\n"); goto error; } @@ -674,14 +677,14 @@ static int usb_pcwd_probe(struct usb_interface *interface, usb_pcwd->intr_buffer = usb_alloc_coherent(udev, usb_pcwd->intr_size, GFP_ATOMIC, &usb_pcwd->intr_dma); if (!usb_pcwd->intr_buffer) { - printk(KERN_ERR PFX "Out of memory\n"); + pr_err("Out of memory\n"); goto error; } /* allocate the urb's */ usb_pcwd->intr_urb = usb_alloc_urb(0, GFP_KERNEL); if (!usb_pcwd->intr_urb) { - printk(KERN_ERR PFX "Out of memory\n"); + pr_err("Out of memory\n"); goto error; } @@ -694,7 +697,7 @@ static int usb_pcwd_probe(struct usb_interface *interface, /* register our interrupt URB with the USB system */ if (usb_submit_urb(usb_pcwd->intr_urb, GFP_KERNEL)) { - printk(KERN_ERR PFX "Problem registering interrupt URB\n"); + pr_err("Problem registering interrupt URB\n"); retval = -EIO; /* failure */ goto error; } @@ -713,15 +716,13 @@ static int usb_pcwd_probe(struct usb_interface *interface, else sprintf(fw_ver_str, "<card no answer>"); - printk(KERN_INFO PFX "Found card (Firmware: %s) with temp option\n", - fw_ver_str); + pr_info("Found card (Firmware: %s) with temp option\n", fw_ver_str); /* Get switch settings */ 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", + pr_info("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")); @@ -734,39 +735,34 @@ static int usb_pcwd_probe(struct usb_interface *interface, * 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", + pr_info("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", - retval); + pr_err("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", - TEMP_MINOR, retval); + pr_err("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", - WATCHDOG_MINOR, retval); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, retval); goto err_out_misc_deregister; } /* we can register the device now, as it is ready */ usb_set_intfdata(interface, usb_pcwd); - printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n", + pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n", heartbeat, nowayout); return 0; @@ -824,7 +820,7 @@ static void usb_pcwd_disconnect(struct usb_interface *interface) mutex_unlock(&disconnect_mutex); - printk(KERN_INFO PFX "USB PC Watchdog disconnected\n"); + pr_info("USB PC Watchdog disconnected\n"); } module_usb_driver(usb_pcwd_driver); diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c index 2d22e99..7d3d471 100644 --- a/drivers/watchdog/pika_wdt.c +++ b/drivers/watchdog/pika_wdt.c @@ -5,6 +5,8 @@ * Sean MacLennan <smaclennan@pikatech.com> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/init.h> #include <linux/errno.h> #include <linux/module.h> @@ -23,7 +25,6 @@ #include <linux/of_platform.h> #define DRV_NAME "PIKA-WDT" -#define PFX DRV_NAME ": " /* Hardware timeout in seconds */ #define WDT_HW_TIMEOUT 2 @@ -38,8 +39,8 @@ module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. " "(default = " __MODULE_STRING(WDT_HEARTBEAT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -90,7 +91,7 @@ static void pikawdt_ping(unsigned long data) pikawdt_reset(); mod_timer(&pikawdt_private.timer, jiffies + WDT_TIMEOUT); } else - printk(KERN_CRIT PFX "I will reset your machine !\n"); + pr_crit("I will reset your machine !\n"); } @@ -228,14 +229,14 @@ static int __init pikawdt_init(void) np = of_find_compatible_node(NULL, NULL, "pika,fpga"); if (np == NULL) { - printk(KERN_ERR PFX "Unable to find fpga.\n"); + pr_err("Unable to find fpga\n"); return -ENOENT; } pikawdt_private.fpga = of_iomap(np, 0); of_node_put(np); if (pikawdt_private.fpga == NULL) { - printk(KERN_ERR PFX "Unable to map fpga.\n"); + pr_err("Unable to map fpga\n"); return -ENOMEM; } @@ -244,7 +245,7 @@ static int __init pikawdt_init(void) /* POST information is in the sd area. */ np = of_find_compatible_node(NULL, NULL, "pika,fpga-sd"); if (np == NULL) { - printk(KERN_ERR PFX "Unable to find fpga-sd.\n"); + pr_err("Unable to find fpga-sd\n"); ret = -ENOENT; goto out; } @@ -252,7 +253,7 @@ static int __init pikawdt_init(void) fpga = of_iomap(np, 0); of_node_put(np); if (fpga == NULL) { - printk(KERN_ERR PFX "Unable to map fpga-sd.\n"); + pr_err("Unable to map fpga-sd\n"); ret = -ENOMEM; goto out; } @@ -271,12 +272,12 @@ static int __init pikawdt_init(void) ret = misc_register(&pikawdt_miscdev); if (ret) { - printk(KERN_ERR PFX "Unable to register miscdev.\n"); + pr_err("Unable to register miscdev\n"); goto out; } - printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n", - heartbeat, nowayout); + pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n", + heartbeat, nowayout); return 0; out: diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c index dfae030..6b8432f 100644 --- a/drivers/watchdog/pnx4008_wdt.c +++ b/drivers/watchdog/pnx4008_wdt.c @@ -8,33 +8,32 @@ * Based on sa1100 driver, * Copyright (C) 2000 Oleg Drokin <green@crimea.edu> * - * 2005-2006 (c) MontaVista Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. + * 2005-2006 (c) MontaVista Software, Inc. + * + * (C) 2012 Wolfram Sang, Pengutronix + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/kernel.h> -#include <linux/fs.h> #include <linux/miscdevice.h> #include <linux/watchdog.h> #include <linux/init.h> -#include <linux/bitops.h> -#include <linux/ioport.h> -#include <linux/device.h> #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/spinlock.h> -#include <linux/uaccess.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/err.h> #include <mach/hardware.h> -#define MODULE_NAME "PNX4008-WDT: " - /* WatchDog Timer - Chapter 23 Page 207 */ #define DEFAULT_HEARTBEAT 19 @@ -77,251 +76,128 @@ #define WDOG_COUNTER_RATE 13000000 /*the counter clock is 13 MHz fixed */ -static int nowayout = WATCHDOG_NOWAYOUT; -static int heartbeat = DEFAULT_HEARTBEAT; +static bool nowayout = WATCHDOG_NOWAYOUT; +static unsigned int heartbeat = DEFAULT_HEARTBEAT; static DEFINE_SPINLOCK(io_lock); -static unsigned long wdt_status; -#define WDT_IN_USE 0 -#define WDT_OK_TO_CLOSE 1 -#define WDT_REGION_INITED 2 -#define WDT_DEVICE_INITED 3 - -static unsigned long boot_status; - -static struct resource *wdt_mem; static void __iomem *wdt_base; struct clk *wdt_clk; -static void wdt_enable(void) +static int pnx4008_wdt_start(struct watchdog_device *wdd) { spin_lock(&io_lock); /* stop counter, initiate counter reset */ - __raw_writel(RESET_COUNT, WDTIM_CTRL(wdt_base)); + writel(RESET_COUNT, WDTIM_CTRL(wdt_base)); /*wait for reset to complete. 100% guarantee event */ - while (__raw_readl(WDTIM_COUNTER(wdt_base))) + while (readl(WDTIM_COUNTER(wdt_base))) cpu_relax(); /* internal and external reset, stop after that */ - __raw_writel(M_RES2 | STOP_COUNT0 | RESET_COUNT0, - WDTIM_MCTRL(wdt_base)); + writel(M_RES2 | STOP_COUNT0 | RESET_COUNT0, WDTIM_MCTRL(wdt_base)); /* configure match output */ - __raw_writel(MATCH_OUTPUT_HIGH, WDTIM_EMR(wdt_base)); + writel(MATCH_OUTPUT_HIGH, WDTIM_EMR(wdt_base)); /* clear interrupt, just in case */ - __raw_writel(MATCH_INT, WDTIM_INT(wdt_base)); + writel(MATCH_INT, WDTIM_INT(wdt_base)); /* the longest pulse period 65541/(13*10^6) seconds ~ 5 ms. */ - __raw_writel(0xFFFF, WDTIM_PULSE(wdt_base)); - __raw_writel(heartbeat * WDOG_COUNTER_RATE, WDTIM_MATCH0(wdt_base)); + writel(0xFFFF, WDTIM_PULSE(wdt_base)); + writel(wdd->timeout * WDOG_COUNTER_RATE, WDTIM_MATCH0(wdt_base)); /*enable counter, stop when debugger active */ - __raw_writel(COUNT_ENAB | DEBUG_EN, WDTIM_CTRL(wdt_base)); + writel(COUNT_ENAB | DEBUG_EN, WDTIM_CTRL(wdt_base)); spin_unlock(&io_lock); + return 0; } -static void wdt_disable(void) +static int pnx4008_wdt_stop(struct watchdog_device *wdd) { spin_lock(&io_lock); - __raw_writel(0, WDTIM_CTRL(wdt_base)); /*stop counter */ + writel(0, WDTIM_CTRL(wdt_base)); /*stop counter */ spin_unlock(&io_lock); + return 0; } -static int pnx4008_wdt_open(struct inode *inode, struct file *file) -{ - int ret; - - if (test_and_set_bit(WDT_IN_USE, &wdt_status)) - return -EBUSY; - - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - - ret = clk_enable(wdt_clk); - if (ret) { - clear_bit(WDT_IN_USE, &wdt_status); - return ret; - } - - wdt_enable(); - - return nonseekable_open(inode, file); -} - -static ssize_t pnx4008_wdt_write(struct file *file, const char *data, - size_t len, loff_t *ppos) +static int pnx4008_wdt_set_timeout(struct watchdog_device *wdd, + unsigned int new_timeout) { - if (len) { - if (!nowayout) { - size_t i; - - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - - for (i = 0; i != len; i++) { - char c; - - if (get_user(c, data + i)) - return -EFAULT; - if (c == 'V') - set_bit(WDT_OK_TO_CLOSE, &wdt_status); - } - } - wdt_enable(); - } - - return len; + wdd->timeout = new_timeout; + return 0; } -static const struct watchdog_info ident = { +static const struct watchdog_info pnx4008_wdt_ident = { .options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, .identity = "PNX4008 Watchdog", }; -static long pnx4008_wdt_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - int ret = -ENOTTY; - int time; - - switch (cmd) { - case WDIOC_GETSUPPORT: - ret = copy_to_user((struct watchdog_info *)arg, &ident, - sizeof(ident)) ? -EFAULT : 0; - break; - - case WDIOC_GETSTATUS: - ret = put_user(0, (int *)arg); - break; - - case WDIOC_GETBOOTSTATUS: - ret = put_user(boot_status, (int *)arg); - break; - - case WDIOC_KEEPALIVE: - wdt_enable(); - ret = 0; - break; - - case WDIOC_SETTIMEOUT: - ret = get_user(time, (int *)arg); - if (ret) - break; - - if (time <= 0 || time > MAX_HEARTBEAT) { - ret = -EINVAL; - break; - } - - heartbeat = time; - wdt_enable(); - /* Fall through */ - - case WDIOC_GETTIMEOUT: - ret = put_user(heartbeat, (int *)arg); - break; - } - return ret; -} - -static int pnx4008_wdt_release(struct inode *inode, struct file *file) -{ - if (!test_bit(WDT_OK_TO_CLOSE, &wdt_status)) - printk(KERN_WARNING "WATCHDOG: Device closed unexpectedly\n"); - - wdt_disable(); - clk_disable(wdt_clk); - clear_bit(WDT_IN_USE, &wdt_status); - clear_bit(WDT_OK_TO_CLOSE, &wdt_status); - - return 0; -} - -static const struct file_operations pnx4008_wdt_fops = { +static const struct watchdog_ops pnx4008_wdt_ops = { .owner = THIS_MODULE, - .llseek = no_llseek, - .write = pnx4008_wdt_write, - .unlocked_ioctl = pnx4008_wdt_ioctl, - .open = pnx4008_wdt_open, - .release = pnx4008_wdt_release, + .start = pnx4008_wdt_start, + .stop = pnx4008_wdt_stop, + .set_timeout = pnx4008_wdt_set_timeout, }; -static struct miscdevice pnx4008_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &pnx4008_wdt_fops, +static struct watchdog_device pnx4008_wdd = { + .info = &pnx4008_wdt_ident, + .ops = &pnx4008_wdt_ops, + .min_timeout = 1, + .max_timeout = MAX_HEARTBEAT, }; static int __devinit pnx4008_wdt_probe(struct platform_device *pdev) { - int ret = 0, size; + struct resource *r; + int ret = 0; if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT) heartbeat = DEFAULT_HEARTBEAT; - printk(KERN_INFO MODULE_NAME - "PNX4008 Watchdog Timer: heartbeat %d sec\n", heartbeat); - - wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (wdt_mem == NULL) { - printk(KERN_INFO MODULE_NAME - "failed to get memory region resource\n"); - return -ENOENT; - } - - size = resource_size(wdt_mem); - - if (!request_mem_region(wdt_mem->start, size, pdev->name)) { - printk(KERN_INFO MODULE_NAME "failed to get memory region\n"); - return -ENOENT; - } - wdt_base = (void __iomem *)IO_ADDRESS(wdt_mem->start); + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + wdt_base = devm_request_and_ioremap(&pdev->dev, r); + if (!wdt_base) + return -EADDRINUSE; wdt_clk = clk_get(&pdev->dev, NULL); - if (IS_ERR(wdt_clk)) { - ret = PTR_ERR(wdt_clk); - release_mem_region(wdt_mem->start, size); - wdt_mem = NULL; - goto out; - } + if (IS_ERR(wdt_clk)) + return PTR_ERR(wdt_clk); ret = clk_enable(wdt_clk); - if (ret) { - release_mem_region(wdt_mem->start, size); - wdt_mem = NULL; - clk_put(wdt_clk); + if (ret) goto out; - } - ret = misc_register(&pnx4008_wdt_miscdev); + pnx4008_wdd.timeout = heartbeat; + pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ? + WDIOF_CARDRESET : 0; + watchdog_set_nowayout(&pnx4008_wdd, nowayout); + + pnx4008_wdt_stop(&pnx4008_wdd); /* disable for now */ + + ret = watchdog_register_device(&pnx4008_wdd); if (ret < 0) { - printk(KERN_ERR MODULE_NAME "cannot register misc device\n"); - release_mem_region(wdt_mem->start, size); - wdt_mem = NULL; - clk_disable(wdt_clk); - clk_put(wdt_clk); - } else { - boot_status = (__raw_readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ? - WDIOF_CARDRESET : 0; - wdt_disable(); /*disable for now */ - clk_disable(wdt_clk); - set_bit(WDT_DEVICE_INITED, &wdt_status); + dev_err(&pdev->dev, "cannot register watchdog device\n"); + goto disable_clk; } + dev_info(&pdev->dev, "PNX4008 Watchdog Timer: heartbeat %d sec\n", + heartbeat); + + return 0; + +disable_clk: + clk_disable(wdt_clk); out: + clk_put(wdt_clk); return ret; } static int __devexit pnx4008_wdt_remove(struct platform_device *pdev) { - misc_deregister(&pnx4008_wdt_miscdev); + watchdog_unregister_device(&pnx4008_wdd); clk_disable(wdt_clk); clk_put(wdt_clk); - if (wdt_mem) { - release_mem_region(wdt_mem->start, resource_size(wdt_mem)); - wdt_mem = NULL; - } return 0; } @@ -337,15 +213,16 @@ static struct platform_driver platform_wdt_driver = { module_platform_driver(platform_wdt_driver); MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>"); +MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>"); MODULE_DESCRIPTION("PNX4008 Watchdog Driver"); -module_param(heartbeat, int, 0); +module_param(heartbeat, uint, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat period in seconds from 1 to " __MODULE_STRING(MAX_HEARTBEAT) ", default " __MODULE_STRING(DEFAULT_HEARTBEAT)); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Set to 1 to keep watchdog running after device release"); diff --git a/drivers/watchdog/pnx833x_wdt.c b/drivers/watchdog/pnx833x_wdt.c index a7b5ad2..1b62a7d 100644 --- a/drivers/watchdog/pnx833x_wdt.c +++ b/drivers/watchdog/pnx833x_wdt.c @@ -17,6 +17,8 @@ * based on softdog.c by Alan Cox <alan@redhat.com> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -30,7 +32,6 @@ #include <linux/init.h> #include <asm/mach-pnx833x/pnx833x.h> -#define PFX "pnx833x: " #define WATCHDOG_TIMEOUT 30 /* 30 sec Maximum timeout */ #define WATCHDOG_COUNT_FREQUENCY 68000000U /* Watchdog counts at 68MHZ. */ #define PNX_WATCHDOG_TIMEOUT (WATCHDOG_TIMEOUT * WATCHDOG_COUNT_FREQUENCY) @@ -54,8 +55,8 @@ module_param(pnx833x_wdt_timeout, int, 0); MODULE_PARM_DESC(timeout, "Watchdog timeout in Mhz. (68Mhz clock), default=" __MODULE_STRING(PNX_TIMEOUT_VALUE) "(30 seconds)."); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -76,7 +77,7 @@ static void pnx833x_wdt_start(void) PNX833X_REG(PNX833X_CONFIG + PNX833X_CONFIG_CPU_COUNTERS_CONTROL) |= 0x1; - printk(KERN_INFO PFX "Started watchdog timer.\n"); + pr_info("Started watchdog timer\n"); } static void pnx833x_wdt_stop(void) @@ -87,7 +88,7 @@ static void pnx833x_wdt_stop(void) PNX833X_REG(PNX833X_CONFIG + PNX833X_CONFIG_CPU_COUNTERS_CONTROL) &= 0xFFFFFFFE; - printk(KERN_INFO PFX "Stopped watchdog timer.\n"); + pr_info("Stopped watchdog timer\n"); } static void pnx833x_wdt_ping(void) @@ -113,7 +114,7 @@ static int pnx833x_wdt_open(struct inode *inode, struct file *file) pnx833x_wdt_ping(); - printk(KERN_INFO "Started watchdog timer.\n"); + pr_info("Started watchdog timer\n"); return nonseekable_open(inode, file); } @@ -232,9 +233,6 @@ static struct notifier_block pnx833x_wdt_notifier = { .notifier_call = pnx833x_wdt_notify_sys, }; -static char banner[] __initdata = - KERN_INFO PFX "Hardware Watchdog Timer for PNX833x: Version 0.1\n"; - static int __init watchdog_init(void) { int ret, cause; @@ -243,27 +241,25 @@ static int __init watchdog_init(void) cause = PNX833X_REG(PNX833X_RESET); /*If bit 31 is set then watchdog was cause of reset.*/ if (cause & 0x80000000) { - printk(KERN_INFO PFX "The system was previously reset due to " - "the watchdog firing - please investigate...\n"); + pr_info("The system was previously reset due to the watchdog firing - please investigate...\n"); } ret = register_reboot_notifier(&pnx833x_wdt_notifier); if (ret) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); return ret; } ret = misc_register(&pnx833x_wdt_miscdev); if (ret) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); unregister_reboot_notifier(&pnx833x_wdt_notifier); return ret; } - printk(banner); + pr_info("Hardware Watchdog Timer for PNX833x: Version 0.1\n"); + if (start_enabled) pnx833x_wdt_start(); diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c index bf7bc8a..547353a 100644 --- a/drivers/watchdog/rc32434_wdt.c +++ b/drivers/watchdog/rc32434_wdt.c @@ -17,6 +17,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #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) */ @@ -33,8 +35,6 @@ #include <asm/mach-rc32434/integ.h> /* For the Watchdog registers */ -#define PFX KBUILD_MODNAME ": " - #define VERSION "1.0" static struct { @@ -64,8 +64,8 @@ module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "Watchdog timeout value, in seconds (default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -78,8 +78,7 @@ 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); + pr_err("timeout value must be between 0 and %d\n", max_to); return -EINVAL; } timeout = new_timeout; @@ -119,7 +118,7 @@ static void rc32434_wdt_start(void) SET_BITS(wdt_reg->wtc, or, nand); spin_unlock(&rc32434_wdt_device.io_lock); - printk(KERN_INFO PFX "Started watchdog timer.\n"); + pr_info("Started watchdog timer\n"); } static void rc32434_wdt_stop(void) @@ -130,7 +129,7 @@ static void rc32434_wdt_stop(void) SET_BITS(wdt_reg->wtc, 0, 1 << RC32434_WTC_EN); spin_unlock(&rc32434_wdt_device.io_lock); - printk(KERN_INFO PFX "Stopped watchdog timer.\n"); + pr_info("Stopped watchdog timer\n"); } static void rc32434_wdt_ping(void) @@ -160,8 +159,7 @@ static int rc32434_wdt_release(struct inode *inode, struct file *file) rc32434_wdt_stop(); module_put(THIS_MODULE); } else { - printk(KERN_CRIT PFX - "device closed unexpectedly. WDT will not stop!\n"); + pr_crit("device closed unexpectedly. WDT will not stop!\n"); rc32434_wdt_ping(); } clear_bit(0, &rc32434_wdt_device.inuse); @@ -262,9 +260,6 @@ static struct miscdevice rc32434_wdt_miscdev = { .fops = &rc32434_wdt_fops, }; -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) { int ret; @@ -272,13 +267,13 @@ 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 PFX "failed to retrieve resources\n"); + pr_err("failed to retrieve resources\n"); return -ENODEV; } wdt_reg = ioremap_nocache(r->start, resource_size(r)); if (!wdt_reg) { - printk(KERN_ERR PFX "failed to remap I/O resources\n"); + pr_err("failed to remap I/O resources\n"); return -ENXIO; } @@ -291,18 +286,18 @@ static int __devinit rc32434_wdt_probe(struct platform_device *pdev) * 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", + pr_info("timeout value must be between 0 and %d\n", WTCOMP2SEC((u32)-1)); } ret = misc_register(&rc32434_wdt_miscdev); if (ret < 0) { - printk(KERN_ERR PFX "failed to register watchdog device\n"); + pr_err("failed to register watchdog device\n"); goto unmap; } - printk(banner, timeout); + pr_info("Watchdog Timer version " VERSION ", timer margin: %d sec\n", + timeout); return 0; diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c index c7e17ce..49e1b1c 100644 --- a/drivers/watchdog/riowd.c +++ b/drivers/watchdog/riowd.c @@ -3,6 +3,8 @@ * Copyright (C) 2001, 2008 David S. Miller (davem@davemloft.net) */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/types.h> @@ -189,7 +191,7 @@ static int __devinit riowd_probe(struct platform_device *op) p->regs = of_ioremap(&op->resource[0], 0, 2, DRIVER_NAME); if (!p->regs) { - printk(KERN_ERR PFX "Cannot map registers.\n"); + pr_err("Cannot map registers\n"); goto out_free; } /* Make miscdev useable right away */ @@ -197,12 +199,12 @@ static int __devinit riowd_probe(struct platform_device *op) err = misc_register(&riowd_miscdev); if (err) { - printk(KERN_ERR PFX "Cannot register watchdog misc device.\n"); + pr_err("Cannot register watchdog misc device\n"); goto out_iounmap; } - printk(KERN_INFO PFX "Hardware watchdog [%i minutes], " - "regs at %p\n", riowd_timeout, p->regs); + pr_info("Hardware watchdog [%i minutes], regs at %p\n", + riowd_timeout, p->regs); dev_set_drvdata(&op->dev, p); return 0; diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 404172f..04e5a6d 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -23,6 +23,8 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -46,12 +48,10 @@ #include <plat/regs-watchdog.h> -#define PFX "s3c2410-wdt: " - #define CONFIG_S3C2410_WATCHDOG_ATBOOT (0) #define CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME (15) -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static int tmr_margin = CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME; static int tmr_atboot = CONFIG_S3C2410_WATCHDOG_ATBOOT; static int soft_noboot; @@ -59,7 +59,7 @@ static int debug; module_param(tmr_margin, int, 0); module_param(tmr_atboot, int, 0); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); module_param(soft_noboot, int, 0); module_param(debug, int, 0); @@ -84,10 +84,11 @@ static DEFINE_SPINLOCK(wdt_lock); /* watchdog control routines */ -#define DBG(msg...) do { \ - if (debug) \ - printk(KERN_INFO msg); \ - } while (0) +#define DBG(fmt, ...) \ +do { \ + if (debug) \ + pr_info(fmt, ##__VA_ARGS__); \ +} while (0) /* functions */ @@ -200,6 +201,8 @@ static int s3c2410wdt_set_heartbeat(struct watchdog_device *wdd, unsigned timeou writel(count, wdt_base + S3C2410_WTDAT); writel(wtcon, wdt_base + S3C2410_WTCON); + wdd->timeout = timeout; + return 0; } @@ -354,7 +357,7 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) ret = s3c2410wdt_cpufreq_register(); if (ret < 0) { - printk(KERN_ERR PFX "failed to register cpufreq\n"); + pr_err("failed to register cpufreq\n"); goto err_clk; } @@ -483,8 +486,8 @@ static int s3c2410wdt_resume(struct platform_device *dev) writel(wtdat_save, wdt_base + S3C2410_WTCNT); /* Reset count */ writel(wtcon_save, wdt_base + S3C2410_WTCON); - printk(KERN_INFO PFX "watchdog %sabled\n", - (wtcon_save & S3C2410_WTCON_ENABLE) ? "en" : "dis"); + pr_info("watchdog %sabled\n", + (wtcon_save & S3C2410_WTCON_ENABLE) ? "en" : "dis"); return 0; } @@ -518,12 +521,10 @@ static struct platform_driver s3c2410wdt_driver = { }; -static char banner[] __initdata = - KERN_INFO "S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics\n"; - static int __init watchdog_init(void) { - printk(banner); + pr_info("S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics\n"); + return platform_driver_register(&s3c2410wdt_driver); } diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c index 0162454..d54e04d 100644 --- a/drivers/watchdog/sa1100_wdt.c +++ b/drivers/watchdog/sa1100_wdt.c @@ -17,6 +17,9 @@ * * 27/11/2000 Initial release */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -66,7 +69,7 @@ static int sa1100dog_open(struct inode *inode, struct file *file) */ static int sa1100dog_release(struct inode *inode, struct file *file) { - printk(KERN_CRIT "WATCHDOG: Device closed - timer will not stop\n"); + pr_crit("Device closed - timer will not stop\n"); clear_bit(1, &sa1100wdt_users); return 0; } @@ -169,9 +172,8 @@ static int __init sa1100dog_init(void) ret = misc_register(&sa1100dog_miscdev); if (ret == 0) - printk(KERN_INFO - "SA1100/PXA2xx Watchdog Timer: timer margin %d sec\n", - margin); + pr_info("SA1100/PXA2xx Watchdog Timer: timer margin %d sec\n", + margin); return ret; } diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c index b01a30e..25c7a3f 100644 --- a/drivers/watchdog/sb_wdog.c +++ b/drivers/watchdog/sb_wdog.c @@ -43,6 +43,9 @@ * version 1 or 2 as published by the Free Software Foundation. * */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/io.h> #include <linux/uaccess.h> @@ -125,9 +128,8 @@ static int sbwdog_release(struct inode *inode, struct file *file) __raw_writeb(0, user_dog); module_put(THIS_MODULE); } else { - printk(KERN_CRIT - "%s: Unexpected close, not stopping watchdog!\n", - ident.identity); + pr_crit("%s: Unexpected close, not stopping watchdog!\n", + ident.identity); sbwdog_pet(user_dog); } clear_bit(0, &sbwdog_gate); @@ -269,7 +271,7 @@ irqreturn_t sbwdog_interrupt(int irq, void *addr) * if it's the second watchdog timer, it's for those users */ if (wd_cfg_reg == user_dog) - printk(KERN_CRIT "%s in danger of initiating system reset " + pr_crit("%s in danger of initiating system reset " "in %ld.%01ld seconds\n", ident.identity, wd_init / 1000000, (wd_init / 100000) % 10); @@ -290,9 +292,8 @@ static int __init sbwdog_init(void) */ ret = register_reboot_notifier(&sbwdog_notifier); if (ret) { - printk(KERN_ERR - "%s: cannot register reboot notifier (err=%d)\n", - ident.identity, ret); + pr_err("%s: cannot register reboot notifier (err=%d)\n", + ident.identity, ret); return ret; } @@ -303,16 +304,16 @@ static int __init sbwdog_init(void) ret = request_irq(1, sbwdog_interrupt, IRQF_SHARED, ident.identity, (void *)user_dog); if (ret) { - printk(KERN_ERR "%s: failed to request irq 1 - %d\n", - ident.identity, ret); + pr_err("%s: failed to request irq 1 - %d\n", + ident.identity, ret); goto out; } ret = misc_register(&sbwdog_miscdev); if (ret == 0) { - printk(KERN_INFO "%s: timeout is %ld.%ld secs\n", - ident.identity, - timeout / 1000000, (timeout / 100000) % 10); + pr_info("%s: timeout is %ld.%ld secs\n", + ident.identity, + timeout / 1000000, (timeout / 100000) % 10); return 0; } free_irq(1, (void *)user_dog); @@ -353,8 +354,7 @@ void platform_wd_setup(void) ret = request_irq(1, sbwdog_interrupt, IRQF_SHARED, "Kernel Watchdog", IOADDR(A_SCD_WDOG_CFG_0)); if (ret) { - printk(KERN_CRIT - "Watchdog IRQ zero(0) failed to be requested - %d\n", ret); + pr_crit("Watchdog IRQ zero(0) failed to be requested - %d\n", ret); } } diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c index 626d0e8..6b412767 100644 --- a/drivers/watchdog/sbc60xxwdt.c +++ b/drivers/watchdog/sbc60xxwdt.c @@ -48,6 +48,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -105,8 +107,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. (1<=timeout<=3600, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -132,8 +134,7 @@ static void wdt_timer_ping(unsigned long data) /* Re-set the timer interval */ mod_timer(&timer, jiffies + WDT_INTERVAL); } else - printk(KERN_WARNING PFX - "Heartbeat lost! Will not ping the watchdog\n"); + pr_warn("Heartbeat lost! Will not ping the watchdog\n"); } /* @@ -146,7 +147,7 @@ static void wdt_startup(void) /* Start the timer */ mod_timer(&timer, jiffies + WDT_INTERVAL); - printk(KERN_INFO PFX "Watchdog timer is now enabled.\n"); + pr_info("Watchdog timer is now enabled\n"); } static void wdt_turnoff(void) @@ -154,7 +155,7 @@ static void wdt_turnoff(void) /* Stop the timer */ del_timer(&timer); inb_p(wdt_stop); - printk(KERN_INFO PFX "Watchdog timer is now disabled...\n"); + pr_info("Watchdog timer is now disabled...\n"); } static void wdt_keepalive(void) @@ -217,8 +218,7 @@ static int fop_close(struct inode *inode, struct file *file) wdt_turnoff(); else { del_timer(&timer); - printk(KERN_CRIT PFX - "device file closed unexpectedly. Will not stop the WDT!\n"); + pr_crit("device file closed unexpectedly. Will not stop the WDT!\n"); } clear_bit(0, &wdt_is_open); wdt_expect_close = 0; @@ -335,14 +335,12 @@ static int __init sbc60xxwdt_init(void) if (timeout < 1 || timeout > 3600) { /* arbitrary upper limit */ timeout = WATCHDOG_TIMEOUT; - printk(KERN_INFO PFX - "timeout value must be 1 <= x <= 3600, using %d\n", - timeout); + pr_info("timeout value must be 1 <= x <= 3600, using %d\n", + timeout); } if (!request_region(wdt_start, 1, "SBC 60XX WDT")) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - wdt_start); + pr_err("I/O address 0x%04x already in use\n", wdt_start); rc = -EIO; goto err_out; } @@ -350,9 +348,7 @@ static int __init sbc60xxwdt_init(void) /* We cannot reserve 0x45 - the kernel already has! */ if (wdt_stop != 0x45 && wdt_stop != wdt_start) { if (!request_region(wdt_stop, 1, "SBC 60XX WDT")) { - printk(KERN_ERR PFX - "I/O address 0x%04x already in use\n", - wdt_stop); + pr_err("I/O address 0x%04x already in use\n", wdt_stop); rc = -EIO; goto err_out_region1; } @@ -360,21 +356,18 @@ static int __init sbc60xxwdt_init(void) rc = register_reboot_notifier(&wdt_notifier); if (rc) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", rc); + pr_err("cannot register reboot notifier (err=%d)\n", rc); goto err_out_region2; } rc = misc_register(&wdt_miscdev); if (rc) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - wdt_miscdev.minor, rc); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + wdt_miscdev.minor, rc); goto err_out_reboot; } - printk(KERN_INFO PFX - "WDT driver for 60XX single board computer initialised. " - "timeout=%d sec (nowayout=%d)\n", timeout, nowayout); + pr_info("WDT driver for 60XX single board computer initialised. timeout=%d sec (nowayout=%d)\n", + timeout, nowayout); return 0; diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c index 93ac589..8ab757d 100644 --- a/drivers/watchdog/sbc7240_wdt.c +++ b/drivers/watchdog/sbc7240_wdt.c @@ -16,6 +16,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/fs.h> #include <linux/init.h> #include <linux/ioport.h> @@ -32,8 +34,6 @@ #include <linux/atomic.h> #include <asm/system.h> -#define SBC7240_PREFIX "sbc7240_wdt: " - #define SBC7240_ENABLE_PORT 0x443 #define SBC7240_DISABLE_PORT 0x043 #define SBC7240_SET_TIMEOUT_PORT SBC7240_ENABLE_PORT @@ -47,8 +47,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. (1<=timeout<=" __MODULE_STRING(SBC7240_MAX_TIMEOUT) ", default=" __MODULE_STRING(SBC7240_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Disable watchdog when closing device file"); #define SBC7240_OPEN_STATUS_BIT 0 @@ -65,8 +65,7 @@ static void wdt_disable(void) /* disable the watchdog */ if (test_and_clear_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status)) { inb_p(SBC7240_DISABLE_PORT); - printk(KERN_INFO SBC7240_PREFIX - "Watchdog timer is now disabled.\n"); + pr_info("Watchdog timer is now disabled\n"); } } @@ -75,23 +74,20 @@ static void wdt_enable(void) /* enable the watchdog */ if (!test_and_set_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status)) { inb_p(SBC7240_ENABLE_PORT); - printk(KERN_INFO SBC7240_PREFIX - "Watchdog timer is now enabled.\n"); + pr_info("Watchdog timer is now enabled\n"); } } static int wdt_set_timeout(int t) { if (t < 1 || t > SBC7240_MAX_TIMEOUT) { - printk(KERN_ERR SBC7240_PREFIX - "timeout value must be 1<=x<=%d\n", - SBC7240_MAX_TIMEOUT); + pr_err("timeout value must be 1<=x<=%d\n", SBC7240_MAX_TIMEOUT); return -1; } /* set the timeout */ outb_p((unsigned)t, SBC7240_SET_TIMEOUT_PORT); timeout = t; - printk(KERN_INFO SBC7240_PREFIX "timeout set to %d seconds\n", t); + pr_info("timeout set to %d seconds\n", t); return 0; } @@ -150,8 +146,7 @@ static int fop_close(struct inode *inode, struct file *file) || !nowayout) { wdt_disable(); } else { - printk(KERN_CRIT SBC7240_PREFIX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); wdt_keepalive(); } @@ -252,7 +247,7 @@ static struct notifier_block wdt_notifier = { static void __exit sbc7240_wdt_unload(void) { - printk(KERN_INFO SBC7240_PREFIX "Removing watchdog\n"); + pr_info("Removing watchdog\n"); misc_deregister(&wdt_miscdev); unregister_reboot_notifier(&wdt_notifier); @@ -264,8 +259,7 @@ static int __init sbc7240_wdt_init(void) int rc = -EBUSY; if (!request_region(SBC7240_ENABLE_PORT, 1, "SBC7240 WDT")) { - printk(KERN_ERR SBC7240_PREFIX - "I/O address 0x%04x already in use\n", + pr_err("I/O address 0x%04x already in use\n", SBC7240_ENABLE_PORT); rc = -EIO; goto err_out; @@ -277,31 +271,27 @@ static int __init sbc7240_wdt_init(void) if (timeout < 1 || timeout > SBC7240_MAX_TIMEOUT) { timeout = SBC7240_TIMEOUT; - printk(KERN_INFO SBC7240_PREFIX - "timeout value must be 1<=x<=%d, using %d\n", - SBC7240_MAX_TIMEOUT, timeout); + pr_info("timeout value must be 1<=x<=%d, using %d\n", + SBC7240_MAX_TIMEOUT, timeout); } wdt_set_timeout(timeout); wdt_disable(); rc = register_reboot_notifier(&wdt_notifier); if (rc) { - printk(KERN_ERR SBC7240_PREFIX - "cannot register reboot notifier (err=%d)\n", rc); + pr_err("cannot register reboot notifier (err=%d)\n", rc); goto err_out_region; } rc = misc_register(&wdt_miscdev); if (rc) { - printk(KERN_ERR SBC7240_PREFIX - "cannot register miscdev on minor=%d (err=%d)\n", + pr_err("cannot register miscdev on minor=%d (err=%d)\n", wdt_miscdev.minor, rc); goto err_out_reboot_notifier; } - printk(KERN_INFO SBC7240_PREFIX - "Watchdog driver for SBC7240 initialised (nowayout=%d)\n", - nowayout); + pr_info("Watchdog driver for SBC7240 initialised (nowayout=%d)\n", + nowayout); return 0; diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c index 514ec23..a9ea385 100644 --- a/drivers/watchdog/sbc8360.c +++ b/drivers/watchdog/sbc8360.c @@ -36,6 +36,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/types.h> #include <linux/miscdevice.h> @@ -56,8 +58,6 @@ static unsigned long sbc8360_is_open; static char expect_close; -#define PFX "sbc8360: " - /* * * Watchdog Timer Configuration @@ -197,11 +197,11 @@ static int wd_times[64][2] = { static int timeout = 27; static int wd_margin = 0xB; static int wd_multiplier = 2; -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "Index into timeout table (0-63) (default=27 (60s))"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -280,8 +280,7 @@ static int sbc8360_close(struct inode *inode, struct file *file) if (expect_close == 42) sbc8360_stop(); else - printk(KERN_CRIT PFX "SBC8360 device closed unexpectedly. " - "SBC8360 will not stop!\n"); + pr_crit("SBC8360 device closed unexpectedly. SBC8360 will not stop!\n"); clear_bit(0, &sbc8360_is_open); expect_close = 0; @@ -334,20 +333,19 @@ static int __init sbc8360_init(void) unsigned long int mseconds = 60000; if (timeout < 0 || timeout > 63) { - printk(KERN_ERR PFX "Invalid timeout index (must be 0-63).\n"); + pr_err("Invalid timeout index (must be 0-63)\n"); res = -EINVAL; goto out; } if (!request_region(SBC8360_ENABLE, 1, "SBC8360")) { - printk(KERN_ERR PFX "ENABLE method I/O %X is not available.\n", + pr_err("ENABLE method I/O %X is not available\n", SBC8360_ENABLE); res = -EIO; goto out; } if (!request_region(SBC8360_BASETIME, 1, "SBC8360")) { - printk(KERN_ERR PFX - "BASETIME method I/O %X is not available.\n", + pr_err("BASETIME method I/O %X is not available\n", SBC8360_BASETIME); res = -EIO; goto out_nobasetimereg; @@ -355,13 +353,13 @@ static int __init sbc8360_init(void) res = register_reboot_notifier(&sbc8360_notifier); if (res) { - printk(KERN_ERR PFX "Failed to register reboot notifier.\n"); + pr_err("Failed to register reboot notifier\n"); goto out_noreboot; } res = misc_register(&sbc8360_miscdev); if (res) { - printk(KERN_ERR PFX "failed to register misc device\n"); + pr_err("failed to register misc device\n"); goto out_nomisc; } @@ -378,7 +376,7 @@ static int __init sbc8360_init(void) mseconds = (wd_margin + 1) * 100000; /* My kingdom for the ability to print "0.5 seconds" in the kernel! */ - printk(KERN_INFO PFX "Timeout set at %ld ms.\n", mseconds); + pr_info("Timeout set at %ld ms\n", mseconds); return 0; diff --git a/drivers/watchdog/sbc_epx_c3.c b/drivers/watchdog/sbc_epx_c3.c index eaca366..0c3e9f6 100644 --- a/drivers/watchdog/sbc_epx_c3.c +++ b/drivers/watchdog/sbc_epx_c3.c @@ -13,6 +13,8 @@ * based on softdog.c by Alan Cox <alan@lxorguk.ukuu.org.uk> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -28,13 +30,12 @@ #include <linux/uaccess.h> #include <linux/io.h> -#define PFX "epx_c3: " static int epx_c3_alive; #define WATCHDOG_TIMEOUT 1 /* 1 sec default timeout */ -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -51,7 +52,7 @@ static void epx_c3_stop(void) outb(0, EPXC3_WATCHDOG_CTL_REG); - printk(KERN_INFO PFX "Stopped watchdog timer.\n"); + pr_info("Stopped watchdog timer\n"); } static void epx_c3_pet(void) @@ -75,7 +76,7 @@ static int epx_c3_open(struct inode *inode, struct file *file) epx_c3_pet(); epx_c3_alive = 1; - printk(KERN_INFO "Started watchdog timer.\n"); + pr_info("Started watchdog timer\n"); return nonseekable_open(inode, file); } @@ -173,9 +174,6 @@ static struct notifier_block epx_c3_notifier = { .notifier_call = epx_c3_notify_sys, }; -static const char banner[] __initconst = KERN_INFO PFX - "Hardware Watchdog Timer for Winsystems EPX-C3 SBC: 0.1\n"; - static int __init watchdog_init(void) { int ret; @@ -185,20 +183,19 @@ static int __init watchdog_init(void) ret = register_reboot_notifier(&epx_c3_notifier); if (ret) { - printk(KERN_ERR PFX "cannot register reboot notifier " - "(err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); goto out; } ret = misc_register(&epx_c3_miscdev); if (ret) { - printk(KERN_ERR PFX "cannot register miscdev on minor=%d " - "(err=%d)\n", WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); unregister_reboot_notifier(&epx_c3_notifier); goto out; } - printk(banner); + pr_info("Hardware Watchdog Timer for Winsystems EPX-C3 SBC: 0.1\n"); return 0; diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c index d5d3994..8404285 100644 --- a/drivers/watchdog/sbc_fitpc2_wdt.c +++ b/drivers/watchdog/sbc_fitpc2_wdt.c @@ -27,7 +27,7 @@ #include <asm/system.h> -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static unsigned int margin = 60; /* (secs) Default is 1 minute */ static unsigned long wdt_status; static DEFINE_MUTEX(wdt_lock); @@ -171,8 +171,7 @@ static int fitpc2_wdt_release(struct inode *inode, struct file *file) wdt_disable(); pr_info("Device disabled\n"); } else { - pr_warning("Device closed unexpectedly -" - " timer will not stop\n"); + pr_warn("Device closed unexpectedly - timer will not stop\n"); wdt_enable(); } @@ -222,8 +221,8 @@ static int __init fitpc2_wdt_init(void) } if (margin < 31 || margin > 255) { - pr_err("margin must be in range 31 - 255" - " seconds, you tried to set %d\n", margin); + pr_err("margin must be in range 31 - 255 seconds, you tried to set %d\n", + margin); err = -EINVAL; goto err_margin; } @@ -231,7 +230,7 @@ static int __init fitpc2_wdt_init(void) err = misc_register(&fitpc2_wdt_miscdev); if (err) { pr_err("cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, err); + WATCHDOG_MINOR, err); goto err_margin; } @@ -261,7 +260,7 @@ MODULE_DESCRIPTION("SBC-FITPC2 Watchdog"); module_param(margin, int, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c index c01daca..3fb83b0 100644 --- a/drivers/watchdog/sc1200wdt.c +++ b/drivers/watchdog/sc1200wdt.c @@ -31,6 +31,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/miscdevice.h> @@ -48,7 +50,6 @@ #define SC1200_MODULE_VER "build 20020303" #define SC1200_MODULE_NAME "sc1200wdt" -#define PFX SC1200_MODULE_NAME ": " #define MAX_TIMEOUT 255 /* 255 minutes */ #define PMIR (io) /* Power Management Index Register */ @@ -71,7 +72,6 @@ #define UART2_IRQ 0x04 /* Serial1 */ /* 5 -7 are reserved */ -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 */ @@ -93,8 +93,8 @@ MODULE_PARM_DESC(io, "io port"); module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "range is 0-255 minutes, default is 1"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -176,7 +176,7 @@ static int sc1200wdt_open(struct inode *inode, struct file *file) timeout = MAX_TIMEOUT; sc1200wdt_start(); - printk(KERN_INFO PFX "Watchdog enabled, timeout = %d min(s)", timeout); + pr_info("Watchdog enabled, timeout = %d min(s)", timeout); return nonseekable_open(inode, file); } @@ -254,11 +254,10 @@ static int sc1200wdt_release(struct inode *inode, struct file *file) { if (expect_close == 42) { sc1200wdt_stop(); - printk(KERN_INFO PFX "Watchdog disabled\n"); + pr_info("Watchdog disabled\n"); } else { sc1200wdt_write_data(WDTO, timeout); - printk(KERN_CRIT PFX - "Unexpected close!, timeout = %d min(s)\n", timeout); + pr_crit("Unexpected close!, timeout = %d min(s)\n", timeout); } clear_bit(0, &open_flag); expect_close = 0; @@ -361,12 +360,11 @@ static int scl200wdt_pnp_probe(struct pnp_dev *dev, io_len = pnp_port_len(wdt_dev, 0); if (!request_region(io, io_len, SC1200_MODULE_NAME)) { - printk(KERN_ERR PFX "Unable to register IO port %#x\n", io); + pr_err("Unable to register IO port %#x\n", io); return -EBUSY; } - printk(KERN_INFO "scl200wdt: PnP device found at io port %#x/%d\n", - io, io_len); + pr_info("PnP device found at io port %#x/%d\n", io, io_len); return 0; } @@ -392,7 +390,7 @@ static int __init sc1200wdt_init(void) { int ret; - printk(KERN_INFO "%s\n", banner); + pr_info("%s\n", SC1200_MODULE_VER); #if defined CONFIG_PNP if (isapnp) { @@ -403,7 +401,7 @@ static int __init sc1200wdt_init(void) #endif if (io == -1) { - printk(KERN_ERR PFX "io parameter must be specified\n"); + pr_err("io parameter must be specified\n"); ret = -EINVAL; goto out_pnp; } @@ -416,7 +414,7 @@ static int __init sc1200wdt_init(void) #endif if (!request_region(io, io_len, SC1200_MODULE_NAME)) { - printk(KERN_ERR PFX "Unable to register IO port %#x\n", io); + pr_err("Unable to register IO port %#x\n", io); ret = -EBUSY; goto out_pnp; } @@ -427,16 +425,14 @@ static int __init sc1200wdt_init(void) ret = register_reboot_notifier(&sc1200wdt_notifier); if (ret) { - printk(KERN_ERR PFX - "Unable to register reboot notifier err = %d\n", ret); + pr_err("Unable to register reboot notifier err = %d\n", ret); goto out_io; } ret = misc_register(&sc1200wdt_miscdev); if (ret) { - printk(KERN_ERR PFX - "Unable to register miscdev on minor %d\n", - WATCHDOG_MINOR); + pr_err("Unable to register miscdev on minor %d\n", + WATCHDOG_MINOR); goto out_rbt; } diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c index b284040..d1ef585 100644 --- a/drivers/watchdog/sc520_wdt.c +++ b/drivers/watchdog/sc520_wdt.c @@ -52,6 +52,8 @@ * This driver uses memory mapped IO, and spinlock. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -69,9 +71,6 @@ #include <asm/system.h> -#define OUR_NAME "sc520_wdt" -#define PFX OUR_NAME ": " - /* * The AMD Elan SC520 timeout value is 492us times a power of 2 (0-7) * @@ -98,8 +97,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. (1 <= timeout <= 3600, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -151,8 +150,7 @@ static void wdt_timer_ping(unsigned long data) /* Re-set the timer interval */ mod_timer(&timer, jiffies + WDT_INTERVAL); } else - printk(KERN_WARNING PFX - "Heartbeat lost! Will not ping the watchdog\n"); + pr_warn("Heartbeat lost! Will not ping the watchdog\n"); } /* @@ -187,7 +185,7 @@ static int wdt_startup(void) /* Start the watchdog */ wdt_config(WDT_ENB | WDT_WRST_ENB | WDT_EXP_SEL_04); - printk(KERN_INFO PFX "Watchdog timer is now enabled.\n"); + pr_info("Watchdog timer is now enabled\n"); return 0; } @@ -199,7 +197,7 @@ static int wdt_turnoff(void) /* Stop the watchdog */ wdt_config(0); - printk(KERN_INFO PFX "Watchdog timer is now disabled...\n"); + pr_info("Watchdog timer is now disabled...\n"); return 0; } @@ -270,8 +268,7 @@ static int fop_close(struct inode *inode, struct file *file) if (wdt_expect_close == 42) wdt_turnoff(); else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); wdt_keepalive(); } clear_bit(0, &wdt_is_open); @@ -393,36 +390,32 @@ static int __init sc520_wdt_init(void) if not reset to the default */ if (wdt_set_heartbeat(timeout)) { wdt_set_heartbeat(WATCHDOG_TIMEOUT); - printk(KERN_INFO PFX - "timeout value must be 1 <= timeout <= 3600, using %d\n", - WATCHDOG_TIMEOUT); + pr_info("timeout value must be 1 <= timeout <= 3600, using %d\n", + WATCHDOG_TIMEOUT); } wdtmrctl = ioremap(MMCR_BASE + OFFS_WDTMRCTL, 2); if (!wdtmrctl) { - printk(KERN_ERR PFX "Unable to remap memory\n"); + pr_err("Unable to remap memory\n"); rc = -ENOMEM; goto err_out_region2; } rc = register_reboot_notifier(&wdt_notifier); if (rc) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", rc); + pr_err("cannot register reboot notifier (err=%d)\n", rc); goto err_out_ioremap; } rc = misc_register(&wdt_miscdev); if (rc) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, rc); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, rc); goto err_out_notifier; } - printk(KERN_INFO PFX - "WDT driver for SC520 initialised. timeout=%d sec (nowayout=%d)\n", - timeout, nowayout); + pr_info("WDT driver for SC520 initialised. timeout=%d sec (nowayout=%d)\n", + timeout, nowayout); return 0; diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c index 029467e..bd86f32 100644 --- a/drivers/watchdog/sch311x_wdt.c +++ b/drivers/watchdog/sch311x_wdt.c @@ -18,6 +18,8 @@ * Includes, defines, variables, module parameters, ... */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + /* Includes */ #include <linux/module.h> /* For module specific items */ #include <linux/moduleparam.h> /* For new moduleparam's */ @@ -37,7 +39,6 @@ /* Module and version information */ #define DRV_NAME "sch311x_wdt" -#define PFX DRV_NAME ": " /* Runtime registers */ #define RESGEN 0x1d @@ -79,8 +80,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1<= timeout <=15300, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) "."); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -323,8 +324,7 @@ static int sch311x_wdt_close(struct inode *inode, struct file *file) if (sch311x_wdt_expect_close == 42) { sch311x_wdt_stop(); } else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); sch311x_wdt_keepalive(); } clear_bit(0, &sch311x_wdt_is_open); @@ -504,20 +504,19 @@ static int __init sch311x_detect(int sio_config_port, unsigned short *addr) /* Check if Logical Device Register is currently active */ if ((sch311x_sio_inb(sio_config_port, 0x30) & 0x01) == 0) - printk(KERN_INFO PFX "Seems that LDN 0x0a is not active...\n"); + pr_info("Seems that LDN 0x0a is not active...\n"); /* Get the base address of the runtime registers */ base_addr = (sch311x_sio_inb(sio_config_port, 0x60) << 8) | sch311x_sio_inb(sio_config_port, 0x61); if (!base_addr) { - printk(KERN_ERR PFX "Base address not set.\n"); + pr_err("Base address not set\n"); err = -ENODEV; goto exit; } *addr = base_addr; - printk(KERN_INFO PFX "Found an SMSC SCH311%d chip at 0x%04x\n", - dev_id, base_addr); + pr_info("Found an SMSC SCH311%d chip at 0x%04x\n", dev_id, base_addr); exit: sch311x_sio_exit(sio_config_port); diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c index e67b76c..8ae7c28 100644 --- a/drivers/watchdog/scx200_wdt.c +++ b/drivers/watchdog/scx200_wdt.c @@ -17,6 +17,8 @@ of any nature resulting due to the use of this software. This software is provided AS-IS with no warranties. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> @@ -30,7 +32,7 @@ #include <linux/uaccess.h> #include <linux/io.h> -#define NAME "scx200_wdt" +#define DEBUG MODULE_AUTHOR("Christer Weinigel <wingel@nano-system.com>"); MODULE_DESCRIPTION("NatSemi SCx200 Watchdog Driver"); @@ -41,8 +43,8 @@ static int margin = 60; /* in seconds */ module_param(margin, int, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close"); static u16 wdto_restart; @@ -66,14 +68,13 @@ static void scx200_wdt_ping(void) static void scx200_wdt_update_margin(void) { - printk(KERN_INFO NAME ": timer margin %d seconds\n", margin); + pr_info("timer margin %d seconds\n", margin); wdto_restart = margin * W_SCALE; } static void scx200_wdt_enable(void) { - printk(KERN_DEBUG NAME ": enabling watchdog timer, wdto_restart = %d\n", - wdto_restart); + pr_debug("enabling watchdog timer, wdto_restart = %d\n", wdto_restart); spin_lock(&scx_lock); outw(0, scx200_cb_base + SCx200_WDT_WDTO); @@ -86,7 +87,7 @@ static void scx200_wdt_enable(void) static void scx200_wdt_disable(void) { - printk(KERN_DEBUG NAME ": disabling watchdog timer\n"); + pr_debug("disabling watchdog timer\n"); spin_lock(&scx_lock); outw(0, scx200_cb_base + SCx200_WDT_WDTO); @@ -108,9 +109,7 @@ static int scx200_wdt_open(struct inode *inode, struct file *file) static int scx200_wdt_release(struct inode *inode, struct file *file) { if (expect_close != 42) - printk(KERN_WARNING NAME - ": watchdog device closed unexpectedly, " - "will not disable the watchdog timer\n"); + pr_warn("watchdog device closed unexpectedly, will not disable the watchdog timer\n"); else if (!nowayout) scx200_wdt_disable(); expect_close = 0; @@ -219,7 +218,7 @@ static int __init scx200_wdt_init(void) { int r; - printk(KERN_DEBUG NAME ": NatSemi SCx200 Watchdog Driver\n"); + pr_debug("NatSemi SCx200 Watchdog Driver\n"); /* check that we have found the configuration block */ if (!scx200_cb_present()) @@ -228,7 +227,7 @@ static int __init scx200_wdt_init(void) if (!request_region(scx200_cb_base + SCx200_WDT_OFFSET, SCx200_WDT_SIZE, "NatSemi SCx200 Watchdog")) { - printk(KERN_WARNING NAME ": watchdog I/O region busy\n"); + pr_warn("watchdog I/O region busy\n"); return -EBUSY; } @@ -237,7 +236,7 @@ static int __init scx200_wdt_init(void) r = register_reboot_notifier(&scx200_wdt_notifier); if (r) { - printk(KERN_ERR NAME ": unable to register reboot notifier"); + pr_err("unable to register reboot notifier\n"); release_region(scx200_cb_base + SCx200_WDT_OFFSET, SCx200_WDT_SIZE); return r; diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c index a267dc0..93958a7 100644 --- a/drivers/watchdog/shwdt.c +++ b/drivers/watchdog/shwdt.c @@ -17,6 +17,9 @@ * Added expect close support, made emulated timeout runtime changeable * general cleanups, add some ioctls */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/platform_device.h> @@ -72,7 +75,7 @@ static DEFINE_SPINLOCK(shwdt_lock); #define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */ static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */ -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; static unsigned long next_heartbeat; struct sh_wdt { @@ -440,20 +443,20 @@ static int __init sh_wdt_init(void) clock_division_ratio > 0x7)) { clock_division_ratio = WTCSR_CKS_4096; - pr_info("%s: divisor must be 0x5<=x<=0x7, using %d\n", - DRV_NAME, clock_division_ratio); + pr_info("divisor must be 0x5<=x<=0x7, using %d\n", + clock_division_ratio); } rc = sh_wdt_set_heartbeat(heartbeat); if (unlikely(rc)) { heartbeat = WATCHDOG_HEARTBEAT; - pr_info("%s: heartbeat value must be 1<=x<=3600, using %d\n", - DRV_NAME, heartbeat); + pr_info("heartbeat value must be 1<=x<=3600, using %d\n", + heartbeat); } - pr_info("%s: configured with heartbeat=%d sec (nowayout=%d)\n", - DRV_NAME, heartbeat, nowayout); + pr_info("configured with heartbeat=%d sec (nowayout=%d)\n", + heartbeat, nowayout); return platform_driver_register(&sh_wdt_driver); } @@ -481,7 +484,7 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c index 97b8184..4c34005 100644 --- a/drivers/watchdog/smsc37b787_wdt.c +++ b/drivers/watchdog/smsc37b787_wdt.c @@ -43,6 +43,8 @@ * Documentation/watchdog/wdt.txt */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -70,7 +72,6 @@ #define UNIT_SECOND 0 #define UNIT_MINUTE 1 -#define MODNAME "smsc37b787_wdt: " #define VERSION "1.1" #define IOPORT 0x3F0 @@ -85,7 +86,7 @@ static char expect_close; /* is the close expected? */ static DEFINE_SPINLOCK(io_lock);/* to guard the watchdog from io races */ -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; /* -- Low level function ----------------------------------------*/ @@ -363,8 +364,7 @@ static int wb_smsc_wdt_open(struct inode *inode, struct file *file) /* Reload and activate timer */ wb_smsc_wdt_enable(); - printk(KERN_INFO MODNAME - "Watchdog enabled. Timeout set to %d %s.\n", + pr_info("Watchdog enabled. Timeout set to %d %s\n", timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)"); return nonseekable_open(inode, file); @@ -378,11 +378,9 @@ static int wb_smsc_wdt_release(struct inode *inode, struct file *file) if (expect_close == 42) { wb_smsc_wdt_disable(); - printk(KERN_INFO MODNAME - "Watchdog disabled, sleeping again...\n"); + pr_info("Watchdog disabled, sleeping again...\n"); } else { - printk(KERN_CRIT MODNAME - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); wb_smsc_wdt_reset_timer(); } @@ -534,12 +532,11 @@ static int __init wb_smsc_wdt_init(void) { int ret; - printk(KERN_INFO "SMsC 37B787 watchdog component driver " - VERSION " initialising...\n"); + pr_info("SMsC 37B787 watchdog component driver " + VERSION " initialising...\n"); if (!request_region(IOPORT, IOPORT_SIZE, "SMsC 37B787 watchdog")) { - printk(KERN_ERR MODNAME "Unable to register IO port %#x\n", - IOPORT); + pr_err("Unable to register IO port %#x\n", IOPORT); ret = -EBUSY; goto out_pnp; } @@ -553,25 +550,22 @@ static int __init wb_smsc_wdt_init(void) ret = register_reboot_notifier(&wb_smsc_wdt_notifier); if (ret) { - printk(KERN_ERR MODNAME - "Unable to register reboot notifier err = %d\n", ret); + pr_err("Unable to register reboot notifier err = %d\n", ret); goto out_io; } ret = misc_register(&wb_smsc_wdt_miscdev); if (ret) { - printk(KERN_ERR MODNAME - "Unable to register miscdev on minor %d\n", - WATCHDOG_MINOR); + pr_err("Unable to register miscdev on minor %d\n", + WATCHDOG_MINOR); goto out_rbt; } /* output info */ - printk(KERN_INFO MODNAME "Timeout set to %d %s.\n", + pr_info("Timeout set to %d %s\n", timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)"); - printk(KERN_INFO MODNAME - "Watchdog initialized and sleeping (nowayout=%d)...\n", - nowayout); + pr_info("Watchdog initialized and sleeping (nowayout=%d)...\n", + nowayout); out_clean: return ret; @@ -592,14 +586,14 @@ static void __exit wb_smsc_wdt_exit(void) /* Stop the timer before we leave */ if (!nowayout) { wb_smsc_wdt_shutdown(); - printk(KERN_INFO MODNAME "Watchdog disabled.\n"); + pr_info("Watchdog disabled\n"); } misc_deregister(&wb_smsc_wdt_miscdev); unregister_reboot_notifier(&wb_smsc_wdt_notifier); release_region(IOPORT, IOPORT_SIZE); - printk(KERN_INFO "SMsC 37B787 watchdog component driver removed.\n"); + pr_info("SMsC 37B787 watchdog component driver removed\n"); } module_init(wb_smsc_wdt_init); @@ -621,7 +615,7 @@ MODULE_PARM_DESC(unit, module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "range is 1-255 units, default is 60"); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c index bf16ffb..fe83beb8 100644 --- a/drivers/watchdog/softdog.c +++ b/drivers/watchdog/softdog.c @@ -1,5 +1,5 @@ /* - * SoftDog 0.07: A Software Watchdog Device + * SoftDog: A Software Watchdog Device * * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, * All Rights Reserved. @@ -36,45 +36,37 @@ * Added Matt Domsch's nowayout module option. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/timer.h> #include <linux/miscdevice.h> #include <linux/watchdog.h> -#include <linux/fs.h> #include <linux/notifier.h> #include <linux/reboot.h> #include <linux/init.h> #include <linux/jiffies.h> -#include <linux/uaccess.h> #include <linux/kernel.h> -#define PFX "SoftDog: " - #define TIMER_MARGIN 60 /* Default is 60 seconds */ -static int soft_margin = TIMER_MARGIN; /* in seconds */ -module_param(soft_margin, int, 0); +static unsigned int soft_margin = TIMER_MARGIN; /* in seconds */ +module_param(soft_margin, uint, 0); MODULE_PARM_DESC(soft_margin, "Watchdog soft_margin in seconds. (0 < soft_margin < 65536, default=" __MODULE_STRING(TIMER_MARGIN) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); -#ifdef ONLY_TESTING -static int soft_noboot = 1; -#else static int soft_noboot = 0; -#endif /* ONLY_TESTING */ - module_param(soft_noboot, int, 0); MODULE_PARM_DESC(soft_noboot, - "Softdog action, set to 1 to ignore reboots, 0 to reboot " - "(default depends on ONLY_TESTING)"); + "Softdog action, set to 1 to ignore reboots, 0 to reboot (default=0)"); static int soft_panic; module_param(soft_panic, int, 0); @@ -89,9 +81,6 @@ static void watchdog_fire(unsigned long); static struct timer_list watchdog_ticktock = TIMER_INITIALIZER(watchdog_fire, 0, 0); -static unsigned long driver_open, orphan_timer; -static char expect_close; - /* * If the timer expires.. @@ -99,18 +88,15 @@ static char expect_close; static void watchdog_fire(unsigned long data) { - if (test_and_clear_bit(0, &orphan_timer)) - module_put(THIS_MODULE); - if (soft_noboot) - printk(KERN_CRIT PFX "Triggered - Reboot ignored.\n"); + pr_crit("Triggered - Reboot ignored\n"); else if (soft_panic) { - printk(KERN_CRIT PFX "Initiating panic.\n"); - panic("Software Watchdog Timer expired."); + pr_crit("Initiating panic\n"); + panic("Software Watchdog Timer expired"); } else { - printk(KERN_CRIT PFX "Initiating system reboot.\n"); + pr_crit("Initiating system reboot\n"); emergency_restart(); - printk(KERN_CRIT PFX "Reboot didn't ?????\n"); + pr_crit("Reboot didn't ?????\n"); } } @@ -118,127 +104,24 @@ static void watchdog_fire(unsigned long data) * Softdog operations */ -static int softdog_keepalive(void) +static int softdog_ping(struct watchdog_device *w) { - mod_timer(&watchdog_ticktock, jiffies+(soft_margin*HZ)); + mod_timer(&watchdog_ticktock, jiffies+(w->timeout*HZ)); return 0; } -static int softdog_stop(void) +static int softdog_stop(struct watchdog_device *w) { del_timer(&watchdog_ticktock); return 0; } -static int softdog_set_heartbeat(int t) -{ - if ((t < 0x0001) || (t > 0xFFFF)) - return -EINVAL; - - soft_margin = t; - return 0; -} - -/* - * /dev/watchdog handling - */ - -static int softdog_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(0, &driver_open)) - return -EBUSY; - if (!test_and_clear_bit(0, &orphan_timer)) - __module_get(THIS_MODULE); - /* - * Activate timer - */ - softdog_keepalive(); - return nonseekable_open(inode, file); -} - -static int softdog_release(struct inode *inode, struct file *file) +static int softdog_set_timeout(struct watchdog_device *w, unsigned int t) { - /* - * Shut off the timer. - * Lock it in if it's a module and we set nowayout - */ - if (expect_close == 42) { - softdog_stop(); - module_put(THIS_MODULE); - } else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); - set_bit(0, &orphan_timer); - softdog_keepalive(); - } - clear_bit(0, &driver_open); - expect_close = 0; + w->timeout = t; return 0; } -static ssize_t softdog_write(struct file *file, const char __user *data, - size_t len, loff_t *ppos) -{ - /* - * Refresh the timer. - */ - if (len) { - if (!nowayout) { - size_t i; - - /* In case it was set long ago */ - expect_close = 0; - - for (i = 0; i != len; i++) { - char c; - - if (get_user(c, data + i)) - return -EFAULT; - if (c == 'V') - expect_close = 42; - } - } - softdog_keepalive(); - } - return len; -} - -static long softdog_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - void __user *argp = (void __user *)arg; - int __user *p = argp; - int new_margin; - static const struct watchdog_info ident = { - .options = WDIOF_SETTIMEOUT | - WDIOF_KEEPALIVEPING | - WDIOF_MAGICCLOSE, - .firmware_version = 0, - .identity = "Software Watchdog", - }; - switch (cmd) { - case WDIOC_GETSUPPORT: - return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0; - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - return put_user(0, p); - case WDIOC_KEEPALIVE: - softdog_keepalive(); - return 0; - case WDIOC_SETTIMEOUT: - if (get_user(new_margin, p)) - return -EFAULT; - if (softdog_set_heartbeat(new_margin)) - return -EINVAL; - softdog_keepalive(); - /* Fall */ - case WDIOC_GETTIMEOUT: - return put_user(soft_margin, p); - default: - return -ENOTTY; - } -} - /* * Notifier for system down */ @@ -248,7 +131,7 @@ static int softdog_notify_sys(struct notifier_block *this, unsigned long code, { if (code == SYS_DOWN || code == SYS_HALT) /* Turn the WDT off */ - softdog_stop(); + softdog_stop(NULL); return NOTIFY_DONE; } @@ -256,28 +139,29 @@ static int softdog_notify_sys(struct notifier_block *this, unsigned long code, * Kernel Interfaces */ -static const struct file_operations softdog_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = softdog_write, - .unlocked_ioctl = softdog_ioctl, - .open = softdog_open, - .release = softdog_release, +static struct notifier_block softdog_notifier = { + .notifier_call = softdog_notify_sys, }; -static struct miscdevice softdog_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &softdog_fops, +static struct watchdog_info softdog_info = { + .identity = "Software Watchdog", + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, }; -static struct notifier_block softdog_notifier = { - .notifier_call = softdog_notify_sys, +static struct watchdog_ops softdog_ops = { + .owner = THIS_MODULE, + .start = softdog_ping, + .stop = softdog_stop, + .ping = softdog_ping, + .set_timeout = softdog_set_timeout, }; -static char banner[] __initdata = KERN_INFO "Software Watchdog Timer: 0.07 " - "initialized. soft_noboot=%d soft_margin=%d sec soft_panic=%d " - "(nowayout= %d)\n"; +static struct watchdog_device softdog_dev = { + .info = &softdog_info, + .ops = &softdog_ops, + .min_timeout = 1, + .max_timeout = 0xFFFF +}; static int __init watchdog_init(void) { @@ -285,37 +169,36 @@ static int __init watchdog_init(void) /* Check that the soft_margin value is within it's range; if not reset to the default */ - if (softdog_set_heartbeat(soft_margin)) { - softdog_set_heartbeat(TIMER_MARGIN); - printk(KERN_INFO PFX - "soft_margin must be 0 < soft_margin < 65536, using %d\n", + if (soft_margin < 1 || soft_margin > 65535) { + pr_info("soft_margin must be 0 < soft_margin < 65536, using %d\n", TIMER_MARGIN); + return -EINVAL; } + softdog_dev.timeout = soft_margin; + + watchdog_set_nowayout(&softdog_dev, nowayout); ret = register_reboot_notifier(&softdog_notifier); if (ret) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); return ret; } - ret = misc_register(&softdog_miscdev); + ret = watchdog_register_device(&softdog_dev); if (ret) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); unregister_reboot_notifier(&softdog_notifier); return ret; } - printk(banner, soft_noboot, soft_margin, soft_panic, nowayout); + pr_info("Software Watchdog Timer: 0.08 initialized. soft_noboot=%d soft_margin=%d sec soft_panic=%d (nowayout=%d)\n", + soft_noboot, soft_margin, soft_panic, nowayout); return 0; } static void __exit watchdog_exit(void) { - misc_deregister(&softdog_miscdev); + watchdog_unregister_device(&softdog_dev); unregister_reboot_notifier(&softdog_notifier); } diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c index 87e0527..59108e4 100644 --- a/drivers/watchdog/sp5100_tco.c +++ b/drivers/watchdog/sp5100_tco.c @@ -20,6 +20,8 @@ * Includes, defines, variables, module parameters, ... */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -39,7 +41,6 @@ #define TCO_VERSION "0.01" #define TCO_MODULE_NAME "SP5100 TCO timer" #define TCO_DRIVER_NAME TCO_MODULE_NAME ", v" TCO_VERSION -#define PFX TCO_MODULE_NAME ": " /* internal variables */ static u32 tcobase_phys; @@ -61,8 +62,8 @@ module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started" " (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -143,8 +144,7 @@ static int sp5100_tco_release(struct inode *inode, struct file *file) if (tco_expect_close == 42) { tco_timer_stop(); } else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); tco_timer_keepalive(); } clear_bit(0, &timer_alive); @@ -290,8 +290,7 @@ static unsigned char __devinit sp5100_tco_setupdevice(void) /* Request the IO ports used by this driver */ pm_iobase = SP5100_IO_PM_INDEX_REG; if (!request_region(pm_iobase, SP5100_PM_IOPORTS_SIZE, "SP5100 TCO")) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - pm_iobase); + pr_err("I/O address 0x%04x already in use\n", pm_iobase); goto exit; } @@ -308,15 +307,14 @@ static unsigned char __devinit sp5100_tco_setupdevice(void) if (!request_mem_region_exclusive(val, SP5100_WDT_MEM_MAP_SIZE, "SP5100 TCO")) { - printk(KERN_ERR PFX "mmio address 0x%04x already in use\n", - val); + pr_err("mmio address 0x%04x already in use\n", val); goto unreg_region; } tcobase_phys = val; tcobase = ioremap(val, SP5100_WDT_MEM_MAP_SIZE); if (tcobase == 0) { - printk(KERN_ERR PFX "failed to get tcobase address\n"); + pr_err("failed to get tcobase address\n"); goto unreg_mem_region; } @@ -375,9 +373,9 @@ static int __devinit sp5100_tco_init(struct platform_device *dev) return -ENODEV; /* Check to see if last reboot was due to watchdog timeout */ - printk(KERN_INFO PFX "Watchdog reboot %sdetected.\n", - readl(SP5100_WDT_CONTROL(tcobase)) & SP5100_PM_WATCHDOG_FIRED ? - "" : "not "); + pr_info("Watchdog reboot %sdetected\n", + readl(SP5100_WDT_CONTROL(tcobase)) & SP5100_PM_WATCHDOG_FIRED ? + "" : "not "); /* Clear out the old status */ val = readl(SP5100_WDT_CONTROL(tcobase)); @@ -395,16 +393,14 @@ static int __devinit sp5100_tco_init(struct platform_device *dev) ret = misc_register(&sp5100_tco_miscdev); if (ret != 0) { - printk(KERN_ERR PFX "cannot register miscdev on minor=" - "%d (err=%d)\n", + pr_err("cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); goto exit; } clear_bit(0, &timer_alive); - printk(KERN_INFO PFX "initialized (0x%p). heartbeat=%d sec" - " (nowayout=%d)\n", + pr_info("initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n", tcobase, heartbeat, nowayout); return 0; @@ -455,8 +451,7 @@ static int __init sp5100_tco_init_module(void) { int err; - printk(KERN_INFO PFX "SP5100 TCO WatchDog Timer Driver v%s\n", - TCO_VERSION); + pr_info("SP5100 TCO WatchDog Timer Driver v%s\n", TCO_VERSION); err = platform_driver_register(&sp5100_tco_driver); if (err) @@ -480,7 +475,7 @@ static void __exit sp5100_tco_cleanup_module(void) { platform_device_unregister(sp5100_tco_platform_device); platform_driver_unregister(&sp5100_tco_driver); - printk(KERN_INFO PFX "SP5100 TCO Watchdog Module Unloaded.\n"); + pr_info("SP5100 TCO Watchdog Module Unloaded\n"); } module_init(sp5100_tco_init_module); diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c index 3ff9e47..bbb170e 100644 --- a/drivers/watchdog/sp805_wdt.c +++ b/drivers/watchdog/sp805_wdt.c @@ -25,6 +25,7 @@ #include <linux/miscdevice.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/pm.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/types.h> @@ -55,14 +56,13 @@ /** * struct sp805_wdt: sp805 wdt device structure - * - * lock: spin lock protecting dev structure and io access - * base: base address of wdt - * clk: clock structure of wdt - * dev: amba device structure of wdt - * status: current status of wdt - * load_val: load value to be set for current timeout - * timeout: current programmed timeout + * @lock: spin lock protecting dev structure and io access + * @base: base address of wdt + * @clk: clock structure of wdt + * @adev: amba device structure of wdt + * @status: current status of wdt + * @load_val: load value to be set for current timeout + * @timeout: current programmed timeout */ struct sp805_wdt { spinlock_t lock; @@ -78,7 +78,7 @@ struct sp805_wdt { /* local variables */ static struct sp805_wdt *wdt; -static int nowayout = WATCHDOG_NOWAYOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; /* This routine finds load value that will reset system in required timout */ static void wdt_setload(unsigned int timeout) @@ -113,10 +113,10 @@ static u32 wdt_timeleft(void) rate = clk_get_rate(wdt->clk); spin_lock(&wdt->lock); - load = readl(wdt->base + WDTVALUE); + load = readl_relaxed(wdt->base + WDTVALUE); /*If the interrupt is inactive then time left is WDTValue + WDTLoad. */ - if (!(readl(wdt->base + WDTRIS) & INT_MASK)) + if (!(readl_relaxed(wdt->base + WDTRIS) & INT_MASK)) load += wdt->load_val + 1; spin_unlock(&wdt->lock); @@ -128,14 +128,14 @@ static void wdt_enable(void) { spin_lock(&wdt->lock); - writel(UNLOCK, wdt->base + WDTLOCK); - writel(wdt->load_val, wdt->base + WDTLOAD); - writel(INT_MASK, wdt->base + WDTINTCLR); - writel(INT_ENABLE | RESET_ENABLE, wdt->base + WDTCONTROL); - writel(LOCK, wdt->base + WDTLOCK); + writel_relaxed(UNLOCK, wdt->base + WDTLOCK); + writel_relaxed(wdt->load_val, wdt->base + WDTLOAD); + writel_relaxed(INT_MASK, wdt->base + WDTINTCLR); + writel_relaxed(INT_ENABLE | RESET_ENABLE, wdt->base + WDTCONTROL); + writel_relaxed(LOCK, wdt->base + WDTLOCK); /* Flush posted writes. */ - readl(wdt->base + WDTLOCK); + readl_relaxed(wdt->base + WDTLOCK); spin_unlock(&wdt->lock); } @@ -144,12 +144,12 @@ static void wdt_disable(void) { spin_lock(&wdt->lock); - writel(UNLOCK, wdt->base + WDTLOCK); - writel(0, wdt->base + WDTCONTROL); - writel(LOCK, wdt->base + WDTLOCK); + writel_relaxed(UNLOCK, wdt->base + WDTLOCK); + writel_relaxed(0, wdt->base + WDTCONTROL); + writel_relaxed(LOCK, wdt->base + WDTLOCK); /* Flush posted writes. */ - readl(wdt->base + WDTLOCK); + readl_relaxed(wdt->base + WDTLOCK); spin_unlock(&wdt->lock); } @@ -285,32 +285,33 @@ sp805_wdt_probe(struct amba_device *adev, const struct amba_id *id) { int ret = 0; - if (!request_mem_region(adev->res.start, resource_size(&adev->res), - "sp805_wdt")) { + if (!devm_request_mem_region(&adev->dev, adev->res.start, + resource_size(&adev->res), "sp805_wdt")) { dev_warn(&adev->dev, "Failed to get memory region resource\n"); ret = -ENOENT; goto err; } - wdt = kzalloc(sizeof(*wdt), GFP_KERNEL); + wdt = devm_kzalloc(&adev->dev, sizeof(*wdt), GFP_KERNEL); if (!wdt) { dev_warn(&adev->dev, "Kzalloc failed\n"); ret = -ENOMEM; - goto err_kzalloc; + goto err; + } + + wdt->base = devm_ioremap(&adev->dev, adev->res.start, + resource_size(&adev->res)); + if (!wdt->base) { + ret = -ENOMEM; + dev_warn(&adev->dev, "ioremap fail\n"); + goto err; } wdt->clk = clk_get(&adev->dev, NULL); if (IS_ERR(wdt->clk)) { dev_warn(&adev->dev, "Clock not found\n"); ret = PTR_ERR(wdt->clk); - goto err_clk_get; - } - - wdt->base = ioremap(adev->res.start, resource_size(&adev->res)); - if (!wdt->base) { - ret = -ENOMEM; - dev_warn(&adev->dev, "ioremap fail\n"); - goto err_ioremap; + goto err; } wdt->adev = adev; @@ -327,14 +328,7 @@ sp805_wdt_probe(struct amba_device *adev, const struct amba_id *id) return 0; err_misc_register: - iounmap(wdt->base); -err_ioremap: clk_put(wdt->clk); -err_clk_get: - kfree(wdt); - wdt = NULL; -err_kzalloc: - release_mem_region(adev->res.start, resource_size(&adev->res)); err: dev_err(&adev->dev, "Probe Failed!!!\n"); return ret; @@ -343,14 +337,42 @@ err: static int __devexit sp805_wdt_remove(struct amba_device *adev) { misc_deregister(&sp805_wdt_miscdev); - iounmap(wdt->base); clk_put(wdt->clk); - kfree(wdt); - release_mem_region(adev->res.start, resource_size(&adev->res)); return 0; } +#ifdef CONFIG_PM +static int sp805_wdt_suspend(struct device *dev) +{ + if (test_bit(WDT_BUSY, &wdt->status)) { + wdt_disable(); + clk_disable(wdt->clk); + } + + return 0; +} + +static int sp805_wdt_resume(struct device *dev) +{ + int ret = 0; + + if (test_bit(WDT_BUSY, &wdt->status)) { + ret = clk_enable(wdt->clk); + if (ret) { + dev_err(dev, "clock enable fail"); + return ret; + } + wdt_enable(); + } + + return ret; +} +#endif /* CONFIG_PM */ + +static SIMPLE_DEV_PM_OPS(sp805_wdt_dev_pm_ops, sp805_wdt_suspend, + sp805_wdt_resume); + static struct amba_id sp805_wdt_ids[] = { { .id = 0x00141805, @@ -364,6 +386,7 @@ MODULE_DEVICE_TABLE(amba, sp805_wdt_ids); static struct amba_driver sp805_wdt_driver = { .drv = { .name = MODULE_NAME, + .pm = &sp805_wdt_dev_pm_ops, }, .id_table = sp805_wdt_ids, .probe = sp805_wdt_probe, @@ -372,7 +395,7 @@ static struct amba_driver sp805_wdt_driver = { module_amba_driver(sp805_wdt_driver); -module_param(nowayout, int, 0); +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Set to 1 to keep watchdog running after device release"); diff --git a/drivers/watchdog/stmp3xxx_wdt.c b/drivers/watchdog/stmp3xxx_wdt.c index e37d811..21d96b9 100644 --- a/drivers/watchdog/stmp3xxx_wdt.c +++ b/drivers/watchdog/stmp3xxx_wdt.c @@ -6,6 +6,9 @@ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/init.h> #include <linux/kernel.h> #include <linux/fs.h> @@ -32,7 +35,7 @@ static DEFINE_SPINLOCK(stmp3xxx_wdt_io_lock); static unsigned long wdt_status; -static const int nowayout = WATCHDOG_NOWAYOUT; +static const bool nowayout = WATCHDOG_NOWAYOUT; static int heartbeat = DEFAULT_HEARTBEAT; static unsigned long boot_status; @@ -221,8 +224,7 @@ static int __devinit stmp3xxx_wdt_probe(struct platform_device *pdev) return ret; } - printk(KERN_INFO "stmp3xxx watchdog: initialized, heartbeat %d sec\n", - heartbeat); + pr_info("initialized, heartbeat %d sec\n", heartbeat); return ret; } diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c index 1490293..8df050d 100644 --- a/drivers/watchdog/ts72xx_wdt.c +++ b/drivers/watchdog/ts72xx_wdt.c @@ -34,8 +34,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. " __MODULE_STRING(TS72XX_WDT_DEFAULT_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close"); /** diff --git a/drivers/watchdog/twl4030_wdt.c b/drivers/watchdog/twl4030_wdt.c index 0764c62..249f113 100644 --- a/drivers/watchdog/twl4030_wdt.c +++ b/drivers/watchdog/twl4030_wdt.c @@ -42,8 +42,8 @@ struct twl4030_wdt { unsigned long state; }; -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c index 9e9ed7b..98e1637 100644 --- a/drivers/watchdog/txx9wdt.c +++ b/drivers/watchdog/txx9wdt.c @@ -7,177 +7,99 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/miscdevice.h> #include <linux/watchdog.h> -#include <linux/fs.h> #include <linux/init.h> -#include <linux/uaccess.h> #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/err.h> #include <linux/io.h> #include <asm/txx9tmr.h> +#define WD_TIMER_CCD 7 /* 1/256 */ +#define WD_TIMER_CLK (clk_get_rate(txx9_imclk) / (2 << WD_TIMER_CCD)) +#define WD_MAX_TIMEOUT ((0xffffffff >> (32 - TXX9_TIMER_BITS)) / WD_TIMER_CLK) #define TIMER_MARGIN 60 /* Default is 60 seconds */ -static int timeout = TIMER_MARGIN; /* in seconds */ -module_param(timeout, int, 0); +static unsigned int timeout = TIMER_MARGIN; /* in seconds */ +module_param(timeout, uint, 0); MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. " "(0<timeout<((2^" __MODULE_STRING(TXX9_TIMER_BITS) ")/(IMCLK/256)), " "default=" __MODULE_STRING(TIMER_MARGIN) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); -#define WD_TIMER_CCD 7 /* 1/256 */ -#define WD_TIMER_CLK (clk_get_rate(txx9_imclk) / (2 << WD_TIMER_CCD)) -#define WD_MAX_TIMEOUT ((0xffffffff >> (32 - TXX9_TIMER_BITS)) / WD_TIMER_CLK) - -static unsigned long txx9wdt_alive; -static int expect_close; static struct txx9_tmr_reg __iomem *txx9wdt_reg; static struct clk *txx9_imclk; static DEFINE_SPINLOCK(txx9_lock); -static void txx9wdt_ping(void) +static int txx9wdt_ping(struct watchdog_device *wdt_dev) { spin_lock(&txx9_lock); __raw_writel(TXx9_TMWTMR_TWIE | TXx9_TMWTMR_TWC, &txx9wdt_reg->wtmr); spin_unlock(&txx9_lock); + return 0; } -static void txx9wdt_start(void) +static int txx9wdt_start(struct watchdog_device *wdt_dev) { spin_lock(&txx9_lock); - __raw_writel(WD_TIMER_CLK * timeout, &txx9wdt_reg->cpra); + __raw_writel(WD_TIMER_CLK * wdt_dev->timeout, &txx9wdt_reg->cpra); __raw_writel(WD_TIMER_CCD, &txx9wdt_reg->ccdr); __raw_writel(0, &txx9wdt_reg->tisr); /* clear pending interrupt */ __raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG, &txx9wdt_reg->tcr); __raw_writel(TXx9_TMWTMR_TWIE | TXx9_TMWTMR_TWC, &txx9wdt_reg->wtmr); spin_unlock(&txx9_lock); + return 0; } -static void txx9wdt_stop(void) +static int txx9wdt_stop(struct watchdog_device *wdt_dev) { spin_lock(&txx9_lock); __raw_writel(TXx9_TMWTMR_WDIS, &txx9wdt_reg->wtmr); __raw_writel(__raw_readl(&txx9wdt_reg->tcr) & ~TXx9_TMTCR_TCE, &txx9wdt_reg->tcr); spin_unlock(&txx9_lock); -} - -static int txx9wdt_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(0, &txx9wdt_alive)) - return -EBUSY; - - if (__raw_readl(&txx9wdt_reg->tcr) & TXx9_TMTCR_TCE) { - clear_bit(0, &txx9wdt_alive); - return -EBUSY; - } - - if (nowayout) - __module_get(THIS_MODULE); - - txx9wdt_start(); - return nonseekable_open(inode, file); -} - -static int txx9wdt_release(struct inode *inode, struct file *file) -{ - if (expect_close) - txx9wdt_stop(); - else { - printk(KERN_CRIT "txx9wdt: " - "Unexpected close, not stopping watchdog!\n"); - txx9wdt_ping(); - } - clear_bit(0, &txx9wdt_alive); - expect_close = 0; return 0; } -static ssize_t txx9wdt_write(struct file *file, const char __user *data, - size_t len, loff_t *ppos) +static int txx9wdt_set_timeout(struct watchdog_device *wdt_dev, + unsigned int new_timeout) { - if (len) { - if (!nowayout) { - size_t i; - - expect_close = 0; - for (i = 0; i != len; i++) { - char c; - if (get_user(c, data + i)) - return -EFAULT; - if (c == 'V') - expect_close = 1; - } - } - txx9wdt_ping(); - } - return len; + wdt_dev->timeout = new_timeout; + txx9wdt_stop(wdt_dev); + txx9wdt_start(wdt_dev); + return 0; } -static long txx9wdt_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - void __user *argp = (void __user *)arg; - int __user *p = argp; - int new_timeout; - static const struct watchdog_info ident = { - .options = WDIOF_SETTIMEOUT | - WDIOF_KEEPALIVEPING | - WDIOF_MAGICCLOSE, - .firmware_version = 0, - .identity = "Hardware Watchdog for TXx9", - }; - - switch (cmd) { - case WDIOC_GETSUPPORT: - return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0; - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - return put_user(0, p); - case WDIOC_KEEPALIVE: - txx9wdt_ping(); - return 0; - case WDIOC_SETTIMEOUT: - if (get_user(new_timeout, p)) - return -EFAULT; - if (new_timeout < 1 || new_timeout > WD_MAX_TIMEOUT) - return -EINVAL; - timeout = new_timeout; - txx9wdt_stop(); - txx9wdt_start(); - /* Fall */ - case WDIOC_GETTIMEOUT: - return put_user(timeout, p); - default: - return -ENOTTY; - } -} +static const struct watchdog_info txx9wdt_info = { + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, + .identity = "Hardware Watchdog for TXx9", +}; -static const struct file_operations txx9wdt_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = txx9wdt_write, - .unlocked_ioctl = txx9wdt_ioctl, - .open = txx9wdt_open, - .release = txx9wdt_release, +static const struct watchdog_ops txx9wdt_ops = { + .owner = THIS_MODULE, + .start = txx9wdt_start, + .stop = txx9wdt_stop, + .ping = txx9wdt_ping, + .set_timeout = txx9wdt_set_timeout, }; -static struct miscdevice txx9wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &txx9wdt_fops, +static struct watchdog_device txx9wdt = { + .info = &txx9wdt_info, + .ops = &txx9wdt_ops, }; static int __init txx9wdt_probe(struct platform_device *dev) @@ -199,27 +121,27 @@ static int __init txx9wdt_probe(struct platform_device *dev) } res = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!res) - goto exit_busy; - if (!devm_request_mem_region(&dev->dev, res->start, resource_size(res), - "txx9wdt")) - goto exit_busy; - txx9wdt_reg = devm_ioremap(&dev->dev, res->start, resource_size(res)); - if (!txx9wdt_reg) - goto exit_busy; - - ret = misc_register(&txx9wdt_miscdev); - if (ret) { + txx9wdt_reg = devm_request_and_ioremap(&dev->dev, res); + if (!txx9wdt_reg) { + ret = -EBUSY; goto exit; } - printk(KERN_INFO "Hardware Watchdog Timer for TXx9: " - "timeout=%d sec (max %ld) (nowayout= %d)\n", - timeout, WD_MAX_TIMEOUT, nowayout); + if (timeout < 1 || timeout > WD_MAX_TIMEOUT) + timeout = TIMER_MARGIN; + txx9wdt.timeout = timeout; + txx9wdt.min_timeout = 1; + txx9wdt.max_timeout = WD_MAX_TIMEOUT; + watchdog_set_nowayout(&txx9wdt, nowayout); + + ret = watchdog_register_device(&txx9wdt); + if (ret) + goto exit; + + pr_info("Hardware Watchdog Timer: timeout=%d sec (max %ld) (nowayout= %d)\n", + timeout, WD_MAX_TIMEOUT, nowayout); return 0; -exit_busy: - ret = -EBUSY; exit: if (txx9_imclk) { clk_disable(txx9_imclk); @@ -230,7 +152,7 @@ exit: static int __exit txx9wdt_remove(struct platform_device *dev) { - misc_deregister(&txx9wdt_miscdev); + watchdog_unregister_device(&txx9wdt); clk_disable(txx9_imclk); clk_put(txx9_imclk); return 0; @@ -238,7 +160,7 @@ static int __exit txx9wdt_remove(struct platform_device *dev) static void txx9wdt_shutdown(struct platform_device *dev) { - txx9wdt_stop(); + txx9wdt_stop(&txx9wdt); } static struct platform_driver txx9wdt_driver = { diff --git a/drivers/watchdog/via_wdt.c b/drivers/watchdog/via_wdt.c index 8f07dd4..465e082 100644 --- a/drivers/watchdog/via_wdt.c +++ b/drivers/watchdog/via_wdt.c @@ -10,6 +10,9 @@ * Caveat: PnP must be enabled in BIOS to allow full access to watchdog * control registers. If not, the watchdog must be configured in BIOS manually. */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/device.h> #include <linux/io.h> #include <linux/jiffies.h> @@ -55,8 +58,8 @@ module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds, between 1 and 1023 " "(default = " __MODULE_STRING(WDT_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started " "(default = " __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -98,7 +101,7 @@ static void wdt_timer_tick(unsigned long data) static int wdt_ping(struct watchdog_device *wdd) { /* calculate when the next userspace timeout will be */ - next_heartbeat = jiffies + timeout * HZ; + next_heartbeat = jiffies + wdd->timeout * HZ; return 0; } @@ -106,7 +109,7 @@ static int wdt_start(struct watchdog_device *wdd) { unsigned int ctl = readl(wdt_mem); - writel(timeout, wdt_mem + VIA_WDT_COUNT); + writel(wdd->timeout, wdt_mem + VIA_WDT_COUNT); writel(ctl | VIA_WDT_RUNNING | VIA_WDT_TRIGGER, wdt_mem); wdt_ping(wdd); mod_timer(&timer, jiffies + WDT_HEARTBEAT); @@ -125,7 +128,7 @@ static int wdt_set_timeout(struct watchdog_device *wdd, unsigned int new_timeout) { writel(new_timeout, wdt_mem + VIA_WDT_COUNT); - timeout = new_timeout; + wdd->timeout = new_timeout; return 0; } diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c index 576a388..4529803 100644 --- a/drivers/watchdog/w83627hf_wdt.c +++ b/drivers/watchdog/w83627hf_wdt.c @@ -26,6 +26,8 @@ * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -43,7 +45,6 @@ #include <asm/system.h> #define WATCHDOG_NAME "w83627hf/thf/hg/dhg WDT" -#define PFX WATCHDOG_NAME ": " #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ static unsigned long wdt_is_open; @@ -61,8 +62,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1 <= timeout <= 255, default=" __MODULE_STRING(WATCHDOG_TIMEOUT) "."); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -119,9 +120,8 @@ static void w83627hf_init(void) outb_p(0xF6, WDT_EFER); /* Select CRF6 */ t = inb_p(WDT_EFDR); /* read CRF6 */ if (t != 0) { - printk(KERN_INFO PFX - "Watchdog already running. Resetting timeout to %d sec\n", - timeout); + pr_info("Watchdog already running. Resetting timeout to %d sec\n", + timeout); outb_p(timeout, WDT_EFDR); /* Write back to CRF6 */ } @@ -290,8 +290,7 @@ static int wdt_close(struct inode *inode, struct file *file) if (expect_close == 42) wdt_disable(); else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); wdt_ping(); } expect_close = 0; @@ -344,18 +343,16 @@ static int __init wdt_init(void) { int ret; - printk(KERN_INFO "WDT driver for the Winbond(TM) W83627HF/THF/HG/DHG Super I/O chip initialising.\n"); + pr_info("WDT driver for the Winbond(TM) W83627HF/THF/HG/DHG Super I/O chip initialising\n"); if (wdt_set_heartbeat(timeout)) { wdt_set_heartbeat(WATCHDOG_TIMEOUT); - printk(KERN_INFO PFX - "timeout value must be 1 <= timeout <= 255, using %d\n", - WATCHDOG_TIMEOUT); + pr_info("timeout value must be 1 <= timeout <= 255, using %d\n", + WATCHDOG_TIMEOUT); } if (!request_region(wdt_io, 1, WATCHDOG_NAME)) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - wdt_io); + pr_err("I/O address 0x%04x already in use\n", wdt_io); ret = -EIO; goto out; } @@ -364,22 +361,19 @@ static int __init wdt_init(void) ret = register_reboot_notifier(&wdt_notifier); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); goto unreg_regions; } ret = misc_register(&wdt_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto unreg_reboot; } - printk(KERN_INFO PFX - "initialized. timeout=%d sec (nowayout=%d)\n", - timeout, nowayout); + pr_info("initialized. timeout=%d sec (nowayout=%d)\n", + timeout, nowayout); out: return ret; diff --git a/drivers/watchdog/w83697hf_wdt.c b/drivers/watchdog/w83697hf_wdt.c index af08972..f5c9d99 100644 --- a/drivers/watchdog/w83697hf_wdt.c +++ b/drivers/watchdog/w83697hf_wdt.c @@ -25,6 +25,8 @@ * "AS-IS" and at no charge. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -42,7 +44,6 @@ #include <asm/system.h> #define WATCHDOG_NAME "w83697hf/hg WDT" -#define PFX WATCHDOG_NAME ": " #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ #define WATCHDOG_EARLY_DISABLE 1 /* Disable until userland kicks in */ @@ -62,8 +63,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1<= timeout <=255 (default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -309,8 +310,7 @@ static int wdt_close(struct inode *inode, struct file *file) if (expect_close == 42) wdt_disable(); else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); wdt_ping(); } expect_close = 0; @@ -362,24 +362,21 @@ static struct notifier_block wdt_notifier = { static int w83697hf_check_wdt(void) { if (!request_region(wdt_io, 2, WATCHDOG_NAME)) { - printk(KERN_ERR PFX - "I/O address 0x%x already in use\n", wdt_io); + pr_err("I/O address 0x%x already in use\n", wdt_io); return -EIO; } - printk(KERN_DEBUG PFX - "Looking for watchdog at address 0x%x\n", wdt_io); + pr_debug("Looking for watchdog at address 0x%x\n", wdt_io); w83697hf_unlock(); if (w83697hf_get_reg(0x20) == 0x60) { - printk(KERN_INFO PFX - "watchdog found at address 0x%x\n", wdt_io); + pr_info("watchdog found at address 0x%x\n", wdt_io); w83697hf_lock(); return 0; } /* Reprotect in case it was a compatible device */ w83697hf_lock(); - printk(KERN_INFO PFX "watchdog not found at address 0x%x\n", wdt_io); + pr_info("watchdog not found at address 0x%x\n", wdt_io); release_region(wdt_io, 2); return -EIO; } @@ -390,7 +387,7 @@ static int __init wdt_init(void) { int ret, i, found = 0; - printk(KERN_INFO PFX "WDT driver for W83697HF/HG initializing\n"); + pr_info("WDT driver for W83697HF/HG initializing\n"); if (wdt_io == 0) { /* we will autodetect the W83697HF/HG watchdog */ @@ -405,7 +402,7 @@ static int __init wdt_init(void) } if (!found) { - printk(KERN_ERR PFX "No W83697HF/HG could be found\n"); + pr_err("No W83697HF/HG could be found\n"); ret = -EIO; goto out; } @@ -413,34 +410,30 @@ static int __init wdt_init(void) w83697hf_init(); if (early_disable) { if (wdt_running()) - printk(KERN_WARNING PFX "Stopping previously enabled " - "watchdog until userland kicks in\n"); + pr_warn("Stopping previously enabled watchdog until userland kicks in\n"); wdt_disable(); } if (wdt_set_heartbeat(timeout)) { wdt_set_heartbeat(WATCHDOG_TIMEOUT); - printk(KERN_INFO PFX - "timeout value must be 1 <= timeout <= 255, using %d\n", - WATCHDOG_TIMEOUT); + pr_info("timeout value must be 1 <= timeout <= 255, using %d\n", + WATCHDOG_TIMEOUT); } ret = register_reboot_notifier(&wdt_notifier); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); goto unreg_regions; } ret = misc_register(&wdt_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto unreg_reboot; } - printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n", + pr_info("initialized. timeout=%d sec (nowayout=%d)\n", timeout, nowayout); out: diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c index be9c4d8..ab45bfd 100644 --- a/drivers/watchdog/w83697ug_wdt.c +++ b/drivers/watchdog/w83697ug_wdt.c @@ -30,6 +30,8 @@ * (c) Copyright 1995 Alan Cox <alan@redhat.com> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -47,7 +49,6 @@ #include <asm/system.h> #define WATCHDOG_NAME "w83697ug/uf WDT" -#define PFX WATCHDOG_NAME ": " #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ static unsigned long wdt_is_open; @@ -64,8 +65,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1<= timeout <=255 (default=" __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -91,8 +92,8 @@ static int w83697ug_select_wd_register(void) version = inb(WDT_EFDR); if (version == 0x68) { /* W83697UG */ - printk(KERN_INFO PFX "Watchdog chip version 0x%02x = " - "W83697UG/UF found at 0x%04x\n", version, wdt_io); + pr_info("Watchdog chip version 0x%02x = W83697UG/UF found at 0x%04x\n", + version, wdt_io); outb_p(0x2b, WDT_EFER); c = inb_p(WDT_EFDR); /* select WDT0 */ @@ -101,7 +102,7 @@ static int w83697ug_select_wd_register(void) outb_p(c, WDT_EFDR); /* set pin118 to WDT0 */ } else { - printk(KERN_ERR PFX "No W83697UG/UF could be found\n"); + pr_err("No W83697UG/UF could be found\n"); return -ENODEV; } @@ -131,8 +132,8 @@ static int w83697ug_init(void) outb_p(0xF6, WDT_EFER); /* Select CRF6 */ t = inb_p(WDT_EFDR); /* read CRF6 */ if (t != 0) { - printk(KERN_INFO PFX "Watchdog already running." - " Resetting timeout to %d sec\n", timeout); + pr_info("Watchdog already running. Resetting timeout to %d sec\n", + timeout); outb_p(timeout, WDT_EFDR); /* Write back to CRF6 */ } outb_p(0xF5, WDT_EFER); /* Select CRF5 */ @@ -286,8 +287,7 @@ static int wdt_close(struct inode *inode, struct file *file) if (expect_close == 42) wdt_disable(); else { - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); wdt_ping(); } expect_close = 0; @@ -340,18 +340,16 @@ static int __init wdt_init(void) { int ret; - printk(KERN_INFO "WDT driver for the Winbond(TM) W83697UG/UF Super I/O chip initialising.\n"); + pr_info("WDT driver for the Winbond(TM) W83697UG/UF Super I/O chip initialising\n"); if (wdt_set_heartbeat(timeout)) { wdt_set_heartbeat(WATCHDOG_TIMEOUT); - printk(KERN_INFO PFX - "timeout value must be 1<=timeout<=255, using %d\n", + pr_info("timeout value must be 1<=timeout<=255, using %d\n", WATCHDOG_TIMEOUT); } if (!request_region(wdt_io, 1, WATCHDOG_NAME)) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - wdt_io); + pr_err("I/O address 0x%04x already in use\n", wdt_io); ret = -EIO; goto out; } @@ -362,20 +360,18 @@ static int __init wdt_init(void) ret = register_reboot_notifier(&wdt_notifier); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); goto unreg_regions; } ret = misc_register(&wdt_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto unreg_reboot; } - printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n", + pr_info("initialized. timeout=%d sec (nowayout=%d)\n", timeout, nowayout); out: diff --git a/drivers/watchdog/w83877f_wdt.c b/drivers/watchdog/w83877f_wdt.c index 24587d2..e76e7e3 100644 --- a/drivers/watchdog/w83877f_wdt.c +++ b/drivers/watchdog/w83877f_wdt.c @@ -42,6 +42,8 @@ * daemon always getting scheduled within that time frame. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -59,7 +61,6 @@ #include <asm/system.h> #define OUR_NAME "w83877f_wdt" -#define PFX OUR_NAME ": " #define ENABLE_W83877F_PORT 0x3F0 #define ENABLE_W83877F 0x87 @@ -91,8 +92,8 @@ MODULE_PARM_DESC(timeout, __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -126,8 +127,7 @@ static void wdt_timer_ping(unsigned long data) spin_unlock(&wdt_spinlock); } else - printk(KERN_WARNING PFX - "Heartbeat lost! Will not ping the watchdog\n"); + pr_warn("Heartbeat lost! Will not ping the watchdog\n"); } /* @@ -165,7 +165,7 @@ static void wdt_startup(void) wdt_change(WDT_ENABLE); - printk(KERN_INFO PFX "Watchdog timer is now enabled.\n"); + pr_info("Watchdog timer is now enabled\n"); } static void wdt_turnoff(void) @@ -175,7 +175,7 @@ static void wdt_turnoff(void) wdt_change(WDT_DISABLE); - printk(KERN_INFO PFX "Watchdog timer is now disabled...\n"); + pr_info("Watchdog timer is now disabled...\n"); } static void wdt_keepalive(void) @@ -234,8 +234,7 @@ static int fop_close(struct inode *inode, struct file *file) wdt_turnoff(); else { del_timer(&timer); - printk(KERN_CRIT PFX - "device file closed unexpectedly. Will not stop the WDT!\n"); + pr_crit("device file closed unexpectedly. Will not stop the WDT!\n"); } clear_bit(0, &wdt_is_open); wdt_expect_close = 0; @@ -357,42 +356,37 @@ static int __init w83877f_wdt_init(void) if (timeout < 1 || timeout > 3600) { /* arbitrary upper limit */ timeout = WATCHDOG_TIMEOUT; - printk(KERN_INFO PFX - "timeout value must be 1 <= x <= 3600, using %d\n", - timeout); + pr_info("timeout value must be 1 <= x <= 3600, using %d\n", + timeout); } if (!request_region(ENABLE_W83877F_PORT, 2, "W83877F WDT")) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - ENABLE_W83877F_PORT); + pr_err("I/O address 0x%04x already in use\n", + ENABLE_W83877F_PORT); rc = -EIO; goto err_out; } if (!request_region(WDT_PING, 1, "W8387FF WDT")) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - WDT_PING); + pr_err("I/O address 0x%04x already in use\n", WDT_PING); rc = -EIO; goto err_out_region1; } rc = register_reboot_notifier(&wdt_notifier); if (rc) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", rc); + pr_err("cannot register reboot notifier (err=%d)\n", rc); goto err_out_region2; } rc = misc_register(&wdt_miscdev); if (rc) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - wdt_miscdev.minor, rc); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + wdt_miscdev.minor, rc); goto err_out_reboot; } - printk(KERN_INFO PFX - "WDT driver for W83877F initialised. timeout=%d sec (nowayout=%d)\n", + pr_info("WDT driver for W83877F initialised. timeout=%d sec (nowayout=%d)\n", timeout, nowayout); return 0; diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c index 6e6743d..56bfded 100644 --- a/drivers/watchdog/w83977f_wdt.c +++ b/drivers/watchdog/w83977f_wdt.c @@ -15,6 +15,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -33,8 +35,6 @@ #define WATCHDOG_VERSION "1.00" #define WATCHDOG_NAME "W83977F WDT" -#define PFX WATCHDOG_NAME ": " -#define DRIVER_VERSION WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n" #define IO_INDEX_PORT 0x3F0 #define IO_DATA_PORT (IO_INDEX_PORT+1) @@ -59,8 +59,8 @@ MODULE_PARM_DESC(timeout, module_param(testmode, int, 0); MODULE_PARM_DESC(testmode, "Watchdog testmode (1 = no reboot), default=0"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -131,7 +131,7 @@ static int wdt_start(void) spin_unlock_irqrestore(&spinlock, flags); - printk(KERN_INFO PFX "activated.\n"); + pr_info("activated\n"); return 0; } @@ -185,7 +185,7 @@ static int wdt_stop(void) spin_unlock_irqrestore(&spinlock, flags); - printk(KERN_INFO PFX "shutdown.\n"); + pr_info("shutdown\n"); return 0; } @@ -313,8 +313,7 @@ static int wdt_release(struct inode *inode, struct file *file) clear_bit(0, &timer_alive); } else { wdt_keepalive(); - printk(KERN_CRIT PFX - "unexpected close, not stopping watchdog!\n"); + pr_crit("unexpected close, not stopping watchdog!\n"); } expect_close = 0; return 0; @@ -471,7 +470,7 @@ static int __init w83977f_wdt_init(void) { int rc; - printk(KERN_INFO PFX DRIVER_VERSION); + pr_info("driver v%s\n", WATCHDOG_VERSION); /* * Check that the timeout value is within it's range; @@ -479,36 +478,31 @@ static int __init w83977f_wdt_init(void) */ if (wdt_set_timeout(timeout)) { wdt_set_timeout(DEFAULT_TIMEOUT); - printk(KERN_INFO PFX - "timeout value must be 15 <= timeout <= 7635, using %d\n", - DEFAULT_TIMEOUT); + pr_info("timeout value must be 15 <= timeout <= 7635, using %d\n", + DEFAULT_TIMEOUT); } if (!request_region(IO_INDEX_PORT, 2, WATCHDOG_NAME)) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - IO_INDEX_PORT); + pr_err("I/O address 0x%04x already in use\n", IO_INDEX_PORT); rc = -EIO; goto err_out; } rc = register_reboot_notifier(&wdt_notifier); if (rc) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", rc); + pr_err("cannot register reboot notifier (err=%d)\n", rc); goto err_out_region; } rc = misc_register(&wdt_miscdev); if (rc) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - wdt_miscdev.minor, rc); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + wdt_miscdev.minor, rc); goto err_out_reboot; } - printk(KERN_INFO PFX - "initialized. timeout=%d sec (nowayout=%d testmode=%d)\n", - timeout, nowayout, testmode); + pr_info("initialized. timeout=%d sec (nowayout=%d testmode=%d)\n", + timeout, nowayout, testmode); return 0; diff --git a/drivers/watchdog/wafer5823wdt.c b/drivers/watchdog/wafer5823wdt.c index c3c3188..25aba6e 100644 --- a/drivers/watchdog/wafer5823wdt.c +++ b/drivers/watchdog/wafer5823wdt.c @@ -26,6 +26,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/miscdevice.h> @@ -65,8 +67,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1 <= timeout <= 255, default=" __MODULE_STRING(WD_TIMO) "."); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -203,8 +205,7 @@ static int wafwdt_close(struct inode *inode, struct file *file) if (expect_close == 42) wafwdt_stop(); else { - printk(KERN_CRIT PFX - "WDT device closed unexpectedly. WDT will not stop!\n"); + pr_crit("WDT device closed unexpectedly. WDT will not stop!\n"); wafwdt_ping(); } clear_bit(0, &wafwdt_is_open); @@ -256,49 +257,42 @@ static int __init wafwdt_init(void) { int ret; - printk(KERN_INFO - "WDT driver for Wafer 5823 single board computer initialising.\n"); + pr_info("WDT driver for Wafer 5823 single board computer initialising\n"); if (timeout < 1 || timeout > 255) { timeout = WD_TIMO; - printk(KERN_INFO PFX - "timeout value must be 1 <= x <= 255, using %d\n", - timeout); + pr_info("timeout value must be 1 <= x <= 255, using %d\n", + timeout); } if (wdt_stop != wdt_start) { if (!request_region(wdt_stop, 1, "Wafer 5823 WDT")) { - printk(KERN_ERR PFX - "I/O address 0x%04x already in use\n", - wdt_stop); + pr_err("I/O address 0x%04x already in use\n", wdt_stop); ret = -EIO; goto error; } } if (!request_region(wdt_start, 1, "Wafer 5823 WDT")) { - printk(KERN_ERR PFX "I/O address 0x%04x already in use\n", - wdt_start); + pr_err("I/O address 0x%04x already in use\n", wdt_start); ret = -EIO; goto error2; } ret = register_reboot_notifier(&wafwdt_notifier); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); goto error3; } ret = misc_register(&wafwdt_miscdev); if (ret != 0) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto error4; } - printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n", + pr_info("initialized. timeout=%d sec (nowayout=%d)\n", timeout, nowayout); return ret; diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c index cfa1a15..14d768b 100644 --- a/drivers/watchdog/watchdog_core.c +++ b/drivers/watchdog/watchdog_core.c @@ -77,7 +77,7 @@ int watchdog_register_device(struct watchdog_device *wdd) /* We only support 1 watchdog device via the /dev/watchdog interface */ ret = watchdog_dev_register(wdd); if (ret) { - pr_err("error registering /dev/watchdog (err=%d).\n", ret); + pr_err("error registering /dev/watchdog (err=%d)\n", ret); return ret; } @@ -101,7 +101,7 @@ void watchdog_unregister_device(struct watchdog_device *wdd) ret = watchdog_dev_unregister(wdd); if (ret) - pr_err("error unregistering /dev/watchdog (err=%d).\n", ret); + pr_err("error unregistering /dev/watchdog (err=%d)\n", ret); } EXPORT_SYMBOL_GPL(watchdog_unregister_device); diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index 1199da0..8558da9 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -226,7 +226,6 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd, err = wdd->ops->set_timeout(wdd, val); if (err < 0) return err; - wdd->timeout = val; /* If the watchdog is active then we send a keepalive ping * to make sure that the watchdog keep's running (and if * possible that it takes the new timeout) */ @@ -237,6 +236,11 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd, if (wdd->timeout == 0) return -EOPNOTSUPP; return put_user(wdd->timeout, p); + case WDIOC_GETTIMELEFT: + if (!wdd->ops->get_timeleft) + return -EOPNOTSUPP; + + return put_user(wdd->ops->get_timeleft(wdd), p); default: return -ENOTTY; } @@ -347,7 +351,7 @@ int watchdog_dev_register(struct watchdog_device *watchdog) /* Only one device can register for /dev/watchdog */ if (test_and_set_bit(0, &watchdog_dev_busy)) { - pr_err("only one watchdog can use /dev/watchdog.\n"); + pr_err("only one watchdog can use /dev/watchdog\n"); return -EBUSY; } @@ -355,8 +359,8 @@ int watchdog_dev_register(struct watchdog_device *watchdog) err = misc_register(&watchdog_miscdev); if (err != 0) { - pr_err("%s: cannot register miscdev on minor=%d (err=%d).\n", - watchdog->info->identity, WATCHDOG_MINOR, err); + pr_err("%s: cannot register miscdev on minor=%d (err=%d)\n", + watchdog->info->identity, WATCHDOG_MINOR, err); goto out; } @@ -383,8 +387,8 @@ int watchdog_dev_unregister(struct watchdog_device *watchdog) /* We can only unregister the watchdog device that was registered */ if (watchdog != wdd) { - pr_err("%s: watchdog was not registered as /dev/watchdog.\n", - watchdog->info->identity); + pr_err("%s: watchdog was not registered as /dev/watchdog\n", + watchdog->info->identity); return -ENODEV; } diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c index 94ec22b..0a77655 100644 --- a/drivers/watchdog/wdrtas.c +++ b/drivers/watchdog/wdrtas.c @@ -26,6 +26,8 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/fs.h> #include <linux/init.h> #include <linux/kernel.h> @@ -49,7 +51,7 @@ MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS_MISCDEV(TEMP_MINOR); -static int wdrtas_nowayout = WATCHDOG_NOWAYOUT; +static bool wdrtas_nowayout = WATCHDOG_NOWAYOUT; static atomic_t wdrtas_miscdev_open = ATOMIC_INIT(0); static char wdrtas_expect_close; @@ -93,8 +95,8 @@ static int wdrtas_set_interval(int interval) result = rtas_call(wdrtas_token_set_indicator, 3, 1, NULL, WDRTAS_SURVEILLANCE_IND, 0, interval); if (result < 0 && print_msg) { - printk(KERN_ERR "wdrtas: setting the watchdog to %i " - "timeout failed: %li\n", interval, result); + pr_err("setting the watchdog to %i timeout failed: %li\n", + interval, result); print_msg--; } @@ -128,8 +130,8 @@ static int wdrtas_get_interval(int fallback_value) spin_unlock(&rtas_data_buf_lock); if (value[0] != 0 || value[1] != 2 || value[3] != 0 || result < 0) { - printk(KERN_WARNING "wdrtas: could not get sp_spi watchdog " - "timeout (%li). Continuing\n", result); + pr_warn("could not get sp_spi watchdog timeout (%li). Continuing\n", + result); return fallback_value; } @@ -170,18 +172,18 @@ static void wdrtas_log_scanned_event(void) int i; for (i = 0; i < WDRTAS_LOGBUFFER_LEN; i += 16) - printk(KERN_INFO "wdrtas: dumping event (line %i/%i), data = " - "%02x %02x %02x %02x %02x %02x %02x %02x " - "%02x %02x %02x %02x %02x %02x %02x %02x\n", - (i / 16) + 1, (WDRTAS_LOGBUFFER_LEN / 16), - wdrtas_logbuffer[i + 0], wdrtas_logbuffer[i + 1], - wdrtas_logbuffer[i + 2], wdrtas_logbuffer[i + 3], - wdrtas_logbuffer[i + 4], wdrtas_logbuffer[i + 5], - wdrtas_logbuffer[i + 6], wdrtas_logbuffer[i + 7], - wdrtas_logbuffer[i + 8], wdrtas_logbuffer[i + 9], - wdrtas_logbuffer[i + 10], wdrtas_logbuffer[i + 11], - wdrtas_logbuffer[i + 12], wdrtas_logbuffer[i + 13], - wdrtas_logbuffer[i + 14], wdrtas_logbuffer[i + 15]); + pr_info("dumping event (line %i/%i), data = " + "%02x %02x %02x %02x %02x %02x %02x %02x " + "%02x %02x %02x %02x %02x %02x %02x %02x\n", + (i / 16) + 1, (WDRTAS_LOGBUFFER_LEN / 16), + wdrtas_logbuffer[i + 0], wdrtas_logbuffer[i + 1], + wdrtas_logbuffer[i + 2], wdrtas_logbuffer[i + 3], + wdrtas_logbuffer[i + 4], wdrtas_logbuffer[i + 5], + wdrtas_logbuffer[i + 6], wdrtas_logbuffer[i + 7], + wdrtas_logbuffer[i + 8], wdrtas_logbuffer[i + 9], + wdrtas_logbuffer[i + 10], wdrtas_logbuffer[i + 11], + wdrtas_logbuffer[i + 12], wdrtas_logbuffer[i + 13], + wdrtas_logbuffer[i + 14], wdrtas_logbuffer[i + 15]); } /** @@ -201,8 +203,7 @@ static void wdrtas_timer_keepalive(void) (void *)__pa(wdrtas_logbuffer), WDRTAS_LOGBUFFER_LEN); if (result < 0) - printk(KERN_ERR "wdrtas: event-scan failed: %li\n", - result); + pr_err("event-scan failed: %li\n", result); if (result == 0) wdrtas_log_scanned_event(); } while (result == 0); @@ -224,8 +225,7 @@ static int wdrtas_get_temperature(void) result = rtas_get_sensor(WDRTAS_THERMAL_SENSOR, 0, &temperature); if (result < 0) - printk(KERN_WARNING "wdrtas: reading the thermal sensor " - "failed: %i\n", result); + pr_warn("reading the thermal sensor failed: %i\n", result); else temperature = ((temperature * 9) / 5) + 32; /* fahrenheit */ @@ -419,8 +419,7 @@ static int wdrtas_close(struct inode *inode, struct file *file) if (wdrtas_expect_close == WDRTAS_MAGIC_CHAR) wdrtas_timer_stop(); else { - printk(KERN_WARNING "wdrtas: got unexpected close. Watchdog " - "not stopped.\n"); + pr_warn("got unexpected close. Watchdog not stopped.\n"); wdrtas_timer_keepalive(); } @@ -552,30 +551,24 @@ static int wdrtas_get_tokens(void) { wdrtas_token_get_sensor_state = rtas_token("get-sensor-state"); if (wdrtas_token_get_sensor_state == RTAS_UNKNOWN_SERVICE) { - printk(KERN_WARNING "wdrtas: couldn't get token for " - "get-sensor-state. Trying to continue without " - "temperature support.\n"); + pr_warn("couldn't get token for get-sensor-state. Trying to continue without temperature support.\n"); } wdrtas_token_get_sp = rtas_token("ibm,get-system-parameter"); if (wdrtas_token_get_sp == RTAS_UNKNOWN_SERVICE) { - printk(KERN_WARNING "wdrtas: couldn't get token for " - "ibm,get-system-parameter. Trying to continue with " - "a default timeout value of %i seconds.\n", - WDRTAS_DEFAULT_INTERVAL); + pr_warn("couldn't get token for ibm,get-system-parameter. Trying to continue with a default timeout value of %i seconds.\n", + WDRTAS_DEFAULT_INTERVAL); } wdrtas_token_set_indicator = rtas_token("set-indicator"); if (wdrtas_token_set_indicator == RTAS_UNKNOWN_SERVICE) { - printk(KERN_ERR "wdrtas: couldn't get token for " - "set-indicator. Terminating watchdog code.\n"); + pr_err("couldn't get token for set-indicator. Terminating watchdog code.\n"); return -EIO; } wdrtas_token_event_scan = rtas_token("event-scan"); if (wdrtas_token_event_scan == RTAS_UNKNOWN_SERVICE) { - printk(KERN_ERR "wdrtas: couldn't get token for event-scan. " - "Terminating watchdog code.\n"); + pr_err("couldn't get token for event-scan. Terminating watchdog code.\n"); return -EIO; } @@ -609,17 +602,14 @@ static int wdrtas_register_devs(void) result = misc_register(&wdrtas_miscdev); if (result) { - printk(KERN_ERR "wdrtas: couldn't register watchdog misc " - "device. Terminating watchdog code.\n"); + pr_err("couldn't register watchdog misc device. Terminating watchdog code.\n"); return result; } if (wdrtas_token_get_sensor_state != RTAS_UNKNOWN_SERVICE) { result = misc_register(&wdrtas_tempdev); if (result) { - printk(KERN_WARNING "wdrtas: couldn't register " - "watchdog temperature misc device. Continuing " - "without temperature support.\n"); + pr_warn("couldn't register watchdog temperature misc device. Continuing without temperature support.\n"); wdrtas_token_get_sensor_state = RTAS_UNKNOWN_SERVICE; } } @@ -643,8 +633,7 @@ static int __init wdrtas_init(void) return -ENODEV; if (register_reboot_notifier(&wdrtas_notifier)) { - printk(KERN_ERR "wdrtas: could not register reboot notifier. " - "Terminating watchdog code.\n"); + pr_err("could not register reboot notifier. Terminating watchdog code.\n"); wdrtas_unregister_devs(); return -ENODEV; } diff --git a/drivers/watchdog/wdt.c b/drivers/watchdog/wdt.c index d2ef002..64079d9 100644 --- a/drivers/watchdog/wdt.c +++ b/drivers/watchdog/wdt.c @@ -32,6 +32,8 @@ * Matt Domsch : Added nowayout module option */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/interrupt.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -65,8 +67,8 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0 < heartbeat < 65536, default=" __MODULE_STRING(WD_TIMO) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -252,11 +254,11 @@ static int wdt_get_temperature(void) static void wdt_decode_501(int status) { if (!(status & WDC_SR_TGOOD)) - printk(KERN_CRIT "Overheat alarm.(%d)\n", inb_p(WDT_RT)); + pr_crit("Overheat alarm (%d)\n", inb_p(WDT_RT)); if (!(status & WDC_SR_PSUOVER)) - printk(KERN_CRIT "PSU over voltage.\n"); + pr_crit("PSU over voltage\n"); if (!(status & WDC_SR_PSUUNDR)) - printk(KERN_CRIT "PSU under voltage.\n"); + pr_crit("PSU under voltage\n"); } /** @@ -280,25 +282,25 @@ static irqreturn_t wdt_interrupt(int irq, void *dev_id) spin_lock(&wdt_lock); status = inb_p(WDT_SR); - printk(KERN_CRIT "WDT status %d\n", status); + pr_crit("WDT status %d\n", status); if (type == 501) { wdt_decode_501(status); if (tachometer) { if (!(status & WDC_SR_FANGOOD)) - printk(KERN_CRIT "Possible fan fault.\n"); + pr_crit("Possible fan fault\n"); } } if (!(status & WDC_SR_WCCR)) { #ifdef SOFTWARE_REBOOT #ifdef ONLY_TESTING - printk(KERN_CRIT "Would Reboot.\n"); + pr_crit("Would Reboot\n"); #else - printk(KERN_CRIT "Initiating system reboot.\n"); + pr_crit("Initiating system reboot\n"); emergency_restart(); #endif #else - printk(KERN_CRIT "Reset in 5ms.\n"); + pr_crit("Reset in 5ms\n"); #endif } spin_unlock(&wdt_lock); @@ -441,8 +443,7 @@ static int wdt_release(struct inode *inode, struct file *file) wdt_stop(); clear_bit(0, &wdt_is_open); } else { - printk(KERN_CRIT - "wdt: WDT device closed unexpectedly. WDT will not stop!\n"); + pr_crit("WDT device closed unexpectedly. WDT will not stop!\n"); wdt_ping(); } expect_close = 0; @@ -593,7 +594,7 @@ static int __init wdt_init(void) int ret; if (type != 500 && type != 501) { - printk(KERN_ERR "wdt: unknown card type '%d'.\n", type); + pr_err("unknown card type '%d'\n", type); return -ENODEV; } @@ -601,53 +602,49 @@ static int __init wdt_init(void) 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); + pr_info("heartbeat value must be 0 < heartbeat < 65536, using %d\n", + WD_TIMO); } if (!request_region(io, 8, "wdt501p")) { - printk(KERN_ERR - "wdt: I/O address 0x%04x already in use\n", io); + pr_err("I/O address 0x%04x already in use\n", io); ret = -EBUSY; goto out; } ret = request_irq(irq, wdt_interrupt, 0, "wdt501p", NULL); if (ret) { - printk(KERN_ERR "wdt: IRQ %d is not free.\n", irq); + pr_err("IRQ %d is not free\n", irq); goto outreg; } ret = register_reboot_notifier(&wdt_notifier); if (ret) { - printk(KERN_ERR - "wdt: cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); goto outirq; } 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); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + TEMP_MINOR, ret); goto outrbt; } } ret = misc_register(&wdt_miscdev); if (ret) { - printk(KERN_ERR - "wdt: cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto outmisc; } - printk(KERN_INFO "WDT500/501-P driver 0.10 " - "at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n", + pr_info("WDT500/501-P driver 0.10 at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n", io, irq, heartbeat, nowayout); if (type == 501) - printk(KERN_INFO "wdt: Fan Tachometer is %s\n", - (tachometer ? "Enabled" : "Disabled")); + pr_info("Fan Tachometer is %s\n", + tachometer ? "Enabled" : "Disabled"); return 0; outmisc: diff --git a/drivers/watchdog/wdt285.c b/drivers/watchdog/wdt285.c index f551356..3daa330 100644 --- a/drivers/watchdog/wdt285.c +++ b/drivers/watchdog/wdt285.c @@ -16,6 +16,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -49,7 +51,7 @@ static unsigned long timer_alive; */ static void watchdog_fire(int irq, void *dev_id) { - printk(KERN_CRIT "Watchdog: Would Reboot.\n"); + pr_crit("Would Reboot\n"); *CSR_TIMER4_CNTL = 0; *CSR_TIMER4_CLR = 0; } @@ -205,13 +207,11 @@ static int __init footbridge_watchdog_init(void) if (retval < 0) return retval; - printk(KERN_INFO - "Footbridge Watchdog Timer: 0.01, timer margin: %d sec\n", - soft_margin); + pr_info("Footbridge Watchdog Timer: 0.01, timer margin: %d sec\n", + soft_margin); if (machine_is_cats()) - printk(KERN_WARNING - "Warning: Watchdog reset may not work on this machine.\n"); + pr_warn("Warning: Watchdog reset may not work on this machine\n"); return 0; } diff --git a/drivers/watchdog/wdt977.c b/drivers/watchdog/wdt977.c index a2f01c9..2de1632 100644 --- a/drivers/watchdog/wdt977.c +++ b/drivers/watchdog/wdt977.c @@ -23,6 +23,8 @@ * Netwinders only */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> @@ -42,8 +44,6 @@ #define WATCHDOG_VERSION "0.04" #define WATCHDOG_NAME "Wdt977" -#define PFX WATCHDOG_NAME ": " -#define DRIVER_VERSION WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n" #define IO_INDEX_PORT 0x370 /* on some systems it can be 0x3F0 */ #define IO_DATA_PORT (IO_INDEX_PORT + 1) @@ -68,8 +68,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds (60..15300, default=" module_param(testmode, int, 0); MODULE_PARM_DESC(testmode, "Watchdog testmode (1 = no reboot), default=0"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -119,7 +119,7 @@ static int wdt977_start(void) outb_p(LOCK_DATA, IO_INDEX_PORT); spin_unlock_irqrestore(&spinlock, flags); - printk(KERN_INFO PFX "activated.\n"); + pr_info("activated\n"); return 0; } @@ -164,7 +164,7 @@ static int wdt977_stop(void) outb_p(LOCK_DATA, IO_INDEX_PORT); spin_unlock_irqrestore(&spinlock, flags); - printk(KERN_INFO PFX "shutdown.\n"); + pr_info("shutdown\n"); return 0; } @@ -288,8 +288,7 @@ static int wdt977_release(struct inode *inode, struct file *file) clear_bit(0, &timer_alive); } else { wdt977_keepalive(); - printk(KERN_CRIT PFX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); } expect_close = 0; return 0; @@ -446,15 +445,14 @@ static int __init wd977_init(void) { int rc; - printk(KERN_INFO PFX DRIVER_VERSION); + pr_info("driver v%s\n", WATCHDOG_VERSION); /* Check that the timeout value is within its range; if not reset to the default */ if (wdt977_set_timeout(timeout)) { wdt977_set_timeout(DEFAULT_TIMEOUT); - printk(KERN_INFO PFX - "timeout value must be 60 < timeout < 15300, using %d\n", - DEFAULT_TIMEOUT); + pr_info("timeout value must be 60 < timeout < 15300, using %d\n", + DEFAULT_TIMEOUT); } /* on Netwinder the IOports are already reserved by @@ -462,9 +460,8 @@ static int __init wd977_init(void) */ if (!machine_is_netwinder()) { if (!request_region(IO_INDEX_PORT, 2, WATCHDOG_NAME)) { - printk(KERN_ERR PFX - "I/O address 0x%04x already in use\n", - IO_INDEX_PORT); + pr_err("I/O address 0x%04x already in use\n", + IO_INDEX_PORT); rc = -EIO; goto err_out; } @@ -472,22 +469,19 @@ static int __init wd977_init(void) rc = register_reboot_notifier(&wdt977_notifier); if (rc) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", rc); + pr_err("cannot register reboot notifier (err=%d)\n", rc); goto err_out_region; } rc = misc_register(&wdt977_miscdev); if (rc) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - wdt977_miscdev.minor, rc); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + wdt977_miscdev.minor, rc); goto err_out_reboot; } - printk(KERN_INFO PFX - "initialized. timeout=%d sec (nowayout=%d, testmode=%i)\n", - timeout, nowayout, testmode); + pr_info("initialized. timeout=%d sec (nowayout=%d, testmode=%i)\n", + timeout, nowayout, testmode); return 0; diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c index e0fc3baa..a3cea59 100644 --- a/drivers/watchdog/wdt_pci.c +++ b/drivers/watchdog/wdt_pci.c @@ -37,6 +37,8 @@ * Matt Domsch : nowayout module option */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/interrupt.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -58,8 +60,6 @@ #define WDT_IS_PCI #include "wd501p.h" -#define PFX "wdt_pci: " - /* We can only use 1 card due to the /dev/watchdog restriction */ static int dev_count; @@ -80,8 +80,8 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536, default=" __MODULE_STRING(WD_TIMO) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -312,33 +312,32 @@ static irqreturn_t wdtpci_interrupt(int irq, void *dev_id) status = inb(WDT_SR); udelay(8); - printk(KERN_CRIT PFX "status %d\n", status); + pr_crit("status %d\n", status); if (type == 501) { if (!(status & WDC_SR_TGOOD)) { - printk(KERN_CRIT PFX "Overheat alarm.(%d)\n", - inb(WDT_RT)); + pr_crit("Overheat alarm (%d)\n", inb(WDT_RT)); udelay(8); } if (!(status & WDC_SR_PSUOVER)) - printk(KERN_CRIT PFX "PSU over voltage.\n"); + pr_crit("PSU over voltage\n"); if (!(status & WDC_SR_PSUUNDR)) - printk(KERN_CRIT PFX "PSU under voltage.\n"); + pr_crit("PSU under voltage\n"); if (tachometer) { if (!(status & WDC_SR_FANGOOD)) - printk(KERN_CRIT PFX "Possible fan fault.\n"); + pr_crit("Possible fan fault\n"); } } if (!(status & WDC_SR_WCCR)) { #ifdef SOFTWARE_REBOOT #ifdef ONLY_TESTING - printk(KERN_CRIT PFX "Would Reboot.\n"); + pr_crit("Would Reboot\n"); #else - printk(KERN_CRIT PFX "Initiating system reboot.\n"); + pr_crit("Initiating system reboot\n"); emergency_restart(NULL); #endif #else - printk(KERN_CRIT PFX "Reset in 5ms.\n"); + pr_crit("Reset in 5ms\n"); #endif } spin_unlock(&wdtpci_lock); @@ -484,7 +483,7 @@ static int wdtpci_release(struct inode *inode, struct file *file) if (expect_close == 42) { wdtpci_stop(); } else { - printk(KERN_CRIT PFX "Unexpected close, not stopping timer!"); + pr_crit("Unexpected close, not stopping timer!\n"); wdtpci_ping(); } expect_close = 0; @@ -614,29 +613,29 @@ static int __devinit wdtpci_init_one(struct pci_dev *dev, dev_count++; if (dev_count > 1) { - printk(KERN_ERR PFX "This driver only supports one device\n"); + pr_err("This driver only supports one device\n"); return -ENODEV; } if (type != 500 && type != 501) { - printk(KERN_ERR PFX "unknown card type '%d'.\n", type); + pr_err("unknown card type '%d'\n", type); return -ENODEV; } if (pci_enable_device(dev)) { - printk(KERN_ERR PFX "Not possible to enable PCI Device\n"); + pr_err("Not possible to enable PCI Device\n"); return -ENODEV; } if (pci_resource_start(dev, 2) == 0x0000) { - printk(KERN_ERR PFX "No I/O-Address for card detected\n"); + pr_err("No I/O-Address for card detected\n"); ret = -ENODEV; goto out_pci; } if (pci_request_region(dev, 2, "wdt_pci")) { - printk(KERN_ERR PFX "I/O address 0x%llx already in use\n", - (unsigned long long)pci_resource_start(dev, 2)); + pr_err("I/O address 0x%llx already in use\n", + (unsigned long long)pci_resource_start(dev, 2)); goto out_pci; } @@ -645,53 +644,48 @@ static int __devinit wdtpci_init_one(struct pci_dev *dev, if (request_irq(irq, wdtpci_interrupt, IRQF_SHARED, "wdt_pci", &wdtpci_miscdev)) { - printk(KERN_ERR PFX "IRQ %d is not free\n", irq); + pr_err("IRQ %d is not free\n", irq); goto out_reg; } - printk(KERN_INFO - "PCI-WDT500/501 (PCI-WDG-CSM) driver 0.10 at 0x%llx (Interrupt %d)\n", - (unsigned long long)io, irq); + pr_info("PCI-WDT500/501 (PCI-WDG-CSM) driver 0.10 at 0x%llx (Interrupt %d)\n", + (unsigned long long)io, irq); /* Check that the heartbeat value is within its range; if not reset to the default */ if (wdtpci_set_heartbeat(heartbeat)) { wdtpci_set_heartbeat(WD_TIMO); - printk(KERN_INFO PFX - "heartbeat value must be 0 < heartbeat < 65536, using %d\n", - WD_TIMO); + pr_info("heartbeat value must be 0 < heartbeat < 65536, using %d\n", + WD_TIMO); } ret = register_reboot_notifier(&wdtpci_notifier); if (ret) { - printk(KERN_ERR PFX - "cannot register reboot notifier (err=%d)\n", ret); + pr_err("cannot register reboot notifier (err=%d)\n", ret); goto out_irq; } 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); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + TEMP_MINOR, ret); goto out_rbt; } } ret = misc_register(&wdtpci_miscdev); if (ret) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + pr_err("cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); goto out_misc; } - printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n", + pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n", heartbeat, nowayout); if (type == 501) - printk(KERN_INFO "wdt: Fan Tachometer is %s\n", - (tachometer ? "Enabled" : "Disabled")); + pr_info("Fan Tachometer is %s\n", + tachometer ? "Enabled" : "Disabled"); ret = 0; out: diff --git a/drivers/watchdog/wm831x_wdt.c b/drivers/watchdog/wm831x_wdt.c index 263c883..b1815c5 100644 --- a/drivers/watchdog/wm831x_wdt.c +++ b/drivers/watchdog/wm831x_wdt.c @@ -22,8 +22,8 @@ #include <linux/mfd/wm831x/pdata.h> #include <linux/mfd/wm831x/watchdog.h> -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); @@ -163,6 +163,8 @@ static int wm831x_wdt_set_timeout(struct watchdog_device *wdt_dev, ret); } + wdt_dev->timeout = timeout; + return ret; } diff --git a/drivers/watchdog/wm8350_wdt.c b/drivers/watchdog/wm8350_wdt.c index 5d7113c..3c76693 100644 --- a/drivers/watchdog/wm8350_wdt.c +++ b/drivers/watchdog/wm8350_wdt.c @@ -8,63 +8,65 @@ * as published by the Free Software Foundation */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/kernel.h> -#include <linux/fs.h> -#include <linux/miscdevice.h> #include <linux/platform_device.h> #include <linux/watchdog.h> #include <linux/uaccess.h> #include <linux/mfd/wm8350/core.h> -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); -static unsigned long wm8350_wdt_users; -static struct miscdevice wm8350_wdt_miscdev; -static int wm8350_wdt_expect_close; static DEFINE_MUTEX(wdt_mutex); static struct { - int time; /* Seconds */ - u16 val; /* To be set in WM8350_SYSTEM_CONTROL_2 */ + unsigned int time; /* Seconds */ + u16 val; /* To be set in WM8350_SYSTEM_CONTROL_2 */ } wm8350_wdt_cfgs[] = { { 1, 0x02 }, { 2, 0x04 }, { 4, 0x05 }, }; -static struct wm8350 *get_wm8350(void) -{ - return dev_get_drvdata(wm8350_wdt_miscdev.parent); -} - -static int wm8350_wdt_set_timeout(struct wm8350 *wm8350, u16 value) +static int wm8350_wdt_set_timeout(struct watchdog_device *wdt_dev, + unsigned int timeout) { - int ret; + struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev); + int ret, i; u16 reg; + for (i = 0; i < ARRAY_SIZE(wm8350_wdt_cfgs); i++) + if (wm8350_wdt_cfgs[i].time == timeout) + break; + if (i == ARRAY_SIZE(wm8350_wdt_cfgs)) + return -EINVAL; + mutex_lock(&wdt_mutex); wm8350_reg_unlock(wm8350); reg = wm8350_reg_read(wm8350, WM8350_SYSTEM_CONTROL_2); reg &= ~WM8350_WDOG_TO_MASK; - reg |= value; + reg |= wm8350_wdt_cfgs[i].val; ret = wm8350_reg_write(wm8350, WM8350_SYSTEM_CONTROL_2, reg); wm8350_reg_lock(wm8350); mutex_unlock(&wdt_mutex); + wdt_dev->timeout = timeout; return ret; } -static int wm8350_wdt_start(struct wm8350 *wm8350) +static int wm8350_wdt_start(struct watchdog_device *wdt_dev) { + struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev); int ret; u16 reg; @@ -82,8 +84,9 @@ static int wm8350_wdt_start(struct wm8350 *wm8350) return ret; } -static int wm8350_wdt_stop(struct wm8350 *wm8350) +static int wm8350_wdt_stop(struct watchdog_device *wdt_dev) { + struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev); int ret; u16 reg; @@ -100,8 +103,9 @@ static int wm8350_wdt_stop(struct wm8350 *wm8350) return ret; } -static int wm8350_wdt_kick(struct wm8350 *wm8350) +static int wm8350_wdt_ping(struct watchdog_device *wdt_dev) { + struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev); int ret; u16 reg; @@ -115,168 +119,25 @@ static int wm8350_wdt_kick(struct wm8350 *wm8350) return ret; } -static int wm8350_wdt_open(struct inode *inode, struct file *file) -{ - struct wm8350 *wm8350 = get_wm8350(); - int ret; - - if (!wm8350) - return -ENODEV; - - if (test_and_set_bit(0, &wm8350_wdt_users)) - return -EBUSY; - - ret = wm8350_wdt_start(wm8350); - if (ret != 0) - return ret; - - return nonseekable_open(inode, file); -} - -static int wm8350_wdt_release(struct inode *inode, struct file *file) -{ - struct wm8350 *wm8350 = get_wm8350(); - - if (wm8350_wdt_expect_close) - wm8350_wdt_stop(wm8350); - else { - dev_warn(wm8350->dev, "Watchdog device closed uncleanly\n"); - wm8350_wdt_kick(wm8350); - } - - clear_bit(0, &wm8350_wdt_users); - - return 0; -} - -static ssize_t wm8350_wdt_write(struct file *file, - const char __user *data, size_t count, - loff_t *ppos) -{ - struct wm8350 *wm8350 = get_wm8350(); - size_t i; - - if (count) { - wm8350_wdt_kick(wm8350); - - if (!nowayout) { - /* In case it was set long ago */ - wm8350_wdt_expect_close = 0; - - /* scan to see whether or not we got the magic - character */ - for (i = 0; i != count; i++) { - char c; - if (get_user(c, data + i)) - return -EFAULT; - if (c == 'V') - wm8350_wdt_expect_close = 42; - } - } - } - return count; -} - -static const struct watchdog_info ident = { +static const struct watchdog_info wm8350_wdt_info = { .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, .identity = "WM8350 Watchdog", }; -static long wm8350_wdt_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - struct wm8350 *wm8350 = get_wm8350(); - int ret = -ENOTTY, time, i; - void __user *argp = (void __user *)arg; - int __user *p = argp; - u16 reg; - - switch (cmd) { - case WDIOC_GETSUPPORT: - ret = copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0; - break; - - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - ret = put_user(0, p); - break; - - case WDIOC_SETOPTIONS: - { - int options; - - if (get_user(options, p)) - return -EFAULT; - - ret = -EINVAL; - - /* Setting both simultaneously means at least one must fail */ - if (options == WDIOS_DISABLECARD) - ret = wm8350_wdt_stop(wm8350); - - if (options == WDIOS_ENABLECARD) - ret = wm8350_wdt_start(wm8350); - break; - } - - case WDIOC_KEEPALIVE: - ret = wm8350_wdt_kick(wm8350); - break; - - case WDIOC_SETTIMEOUT: - ret = get_user(time, p); - if (ret) - break; - - if (time == 0) { - if (nowayout) - ret = -EINVAL; - else - wm8350_wdt_stop(wm8350); - break; - } - - for (i = 0; i < ARRAY_SIZE(wm8350_wdt_cfgs); i++) - if (wm8350_wdt_cfgs[i].time == time) - break; - if (i == ARRAY_SIZE(wm8350_wdt_cfgs)) - ret = -EINVAL; - else - ret = wm8350_wdt_set_timeout(wm8350, - wm8350_wdt_cfgs[i].val); - break; - - case WDIOC_GETTIMEOUT: - reg = wm8350_reg_read(wm8350, WM8350_SYSTEM_CONTROL_2); - reg &= WM8350_WDOG_TO_MASK; - for (i = 0; i < ARRAY_SIZE(wm8350_wdt_cfgs); i++) - if (wm8350_wdt_cfgs[i].val == reg) - break; - if (i == ARRAY_SIZE(wm8350_wdt_cfgs)) { - dev_warn(wm8350->dev, - "Unknown watchdog configuration: %x\n", reg); - ret = -EINVAL; - } else - ret = put_user(wm8350_wdt_cfgs[i].time, p); - - } - - return ret; -} - -static const struct file_operations wm8350_wdt_fops = { +static const struct watchdog_ops wm8350_wdt_ops = { .owner = THIS_MODULE, - .llseek = no_llseek, - .write = wm8350_wdt_write, - .unlocked_ioctl = wm8350_wdt_ioctl, - .open = wm8350_wdt_open, - .release = wm8350_wdt_release, + .start = wm8350_wdt_start, + .stop = wm8350_wdt_stop, + .ping = wm8350_wdt_ping, + .set_timeout = wm8350_wdt_set_timeout, }; -static struct miscdevice wm8350_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &wm8350_wdt_fops, +static struct watchdog_device wm8350_wdt = { + .info = &wm8350_wdt_info, + .ops = &wm8350_wdt_ops, + .timeout = 4, + .min_timeout = 1, + .max_timeout = 4, }; static int __devinit wm8350_wdt_probe(struct platform_device *pdev) @@ -288,18 +149,18 @@ static int __devinit wm8350_wdt_probe(struct platform_device *pdev) return -ENODEV; } - /* Default to 4s timeout */ - wm8350_wdt_set_timeout(wm8350, 0x05); + watchdog_set_nowayout(&wm8350_wdt, nowayout); + watchdog_set_drvdata(&wm8350_wdt, wm8350); - wm8350_wdt_miscdev.parent = &pdev->dev; + /* Default to 4s timeout */ + wm8350_wdt_set_timeout(&wm8350_wdt, 4); - return misc_register(&wm8350_wdt_miscdev); + return watchdog_register_device(&wm8350_wdt); } static int __devexit wm8350_wdt_remove(struct platform_device *pdev) { - misc_deregister(&wm8350_wdt_miscdev); - + watchdog_unregister_device(&wm8350_wdt); return 0; } diff --git a/drivers/watchdog/xen_wdt.c b/drivers/watchdog/xen_wdt.c index 49bd9d3..e4a25b5 100644 --- a/drivers/watchdog/xen_wdt.c +++ b/drivers/watchdog/xen_wdt.c @@ -9,9 +9,10 @@ * 2 of the License, or (at your option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #define DRV_NAME "wdt" #define DRV_VERSION "0.01" -#define PFX DRV_NAME ": " #include <linux/bug.h> #include <linux/errno.h> @@ -131,16 +132,17 @@ static int xen_wdt_open(struct inode *inode, struct file *file) static int xen_wdt_release(struct inode *inode, struct file *file) { + int err = 0; + if (expect_release) - xen_wdt_stop(); + err = xen_wdt_stop(); else { - printk(KERN_CRIT PFX - "unexpected close, not stopping watchdog!\n"); + pr_crit("unexpected close, not stopping watchdog!\n"); xen_wdt_kick(); } - is_active = false; + is_active = err; expect_release = false; - return 0; + return err; } static ssize_t xen_wdt_write(struct file *file, const char __user *data, @@ -251,30 +253,27 @@ static int __devinit xen_wdt_probe(struct platform_device *dev) case -EINVAL: if (!timeout) { timeout = WATCHDOG_TIMEOUT; - printk(KERN_INFO PFX - "timeout value invalid, using %d\n", timeout); + pr_info("timeout value invalid, using %d\n", timeout); } ret = misc_register(&xen_wdt_miscdev); if (ret) { - printk(KERN_ERR PFX - "cannot register miscdev on minor=%d (%d)\n", + pr_err("cannot register miscdev on minor=%d (%d)\n", WATCHDOG_MINOR, ret); break; } - printk(KERN_INFO PFX - "initialized (timeout=%ds, nowayout=%d)\n", - timeout, nowayout); + pr_info("initialized (timeout=%ds, nowayout=%d)\n", + timeout, nowayout); break; case -ENOSYS: - printk(KERN_INFO PFX "not supported\n"); + pr_info("not supported\n"); ret = -ENODEV; break; default: - printk(KERN_INFO PFX "bogus return value %d\n", ret); + pr_info("bogus return value %d\n", ret); break; } @@ -299,11 +298,18 @@ static void xen_wdt_shutdown(struct platform_device *dev) static int xen_wdt_suspend(struct platform_device *dev, pm_message_t state) { - return xen_wdt_stop(); + typeof(wdt.id) id = wdt.id; + int rc = xen_wdt_stop(); + + wdt.id = id; + return rc; } static int xen_wdt_resume(struct platform_device *dev) { + if (!wdt.id) + return 0; + wdt.id = 0; return xen_wdt_start(); } @@ -326,7 +332,7 @@ static int __init xen_wdt_init_module(void) if (!xen_domain()) return -ENODEV; - printk(KERN_INFO PFX "Xen WatchDog Timer Driver v%s\n", DRV_VERSION); + pr_info("Xen WatchDog Timer Driver v%s\n", DRV_VERSION); err = platform_driver_register(&xen_wdt_driver); if (err) @@ -346,7 +352,7 @@ static void __exit xen_wdt_cleanup_module(void) { platform_device_unregister(platform_device); platform_driver_unregister(&xen_wdt_driver); - printk(KERN_INFO PFX "module unloaded\n"); + pr_info("module unloaded\n"); } module_init(xen_wdt_init_module); |
