diff options
Diffstat (limited to 'include/linux/watchdog.h')
| -rw-r--r-- | include/linux/watchdog.h | 62 |
1 files changed, 12 insertions, 50 deletions
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index da70f0facd2..2a3038ee17a 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -5,59 +5,14 @@ * by Ken Hollis <khollis@bitgate.com> * */ - #ifndef _LINUX_WATCHDOG_H #define _LINUX_WATCHDOG_H -#include <linux/ioctl.h> -#include <linux/types.h> - -#define WATCHDOG_IOCTL_BASE 'W' - -struct watchdog_info { - __u32 options; /* Options the card/driver supports */ - __u32 firmware_version; /* Firmware version of the card */ - __u8 identity[32]; /* Identity of the board */ -}; - -#define WDIOC_GETSUPPORT _IOR(WATCHDOG_IOCTL_BASE, 0, struct watchdog_info) -#define WDIOC_GETSTATUS _IOR(WATCHDOG_IOCTL_BASE, 1, int) -#define WDIOC_GETBOOTSTATUS _IOR(WATCHDOG_IOCTL_BASE, 2, int) -#define WDIOC_GETTEMP _IOR(WATCHDOG_IOCTL_BASE, 3, int) -#define WDIOC_SETOPTIONS _IOR(WATCHDOG_IOCTL_BASE, 4, int) -#define WDIOC_KEEPALIVE _IOR(WATCHDOG_IOCTL_BASE, 5, int) -#define WDIOC_SETTIMEOUT _IOWR(WATCHDOG_IOCTL_BASE, 6, int) -#define WDIOC_GETTIMEOUT _IOR(WATCHDOG_IOCTL_BASE, 7, int) -#define WDIOC_SETPRETIMEOUT _IOWR(WATCHDOG_IOCTL_BASE, 8, int) -#define WDIOC_GETPRETIMEOUT _IOR(WATCHDOG_IOCTL_BASE, 9, int) -#define WDIOC_GETTIMELEFT _IOR(WATCHDOG_IOCTL_BASE, 10, int) - -#define WDIOF_UNKNOWN -1 /* Unknown flag error */ -#define WDIOS_UNKNOWN -1 /* Unknown status error */ - -#define WDIOF_OVERHEAT 0x0001 /* Reset due to CPU overheat */ -#define WDIOF_FANFAULT 0x0002 /* Fan failed */ -#define WDIOF_EXTERN1 0x0004 /* External relay 1 */ -#define WDIOF_EXTERN2 0x0008 /* External relay 2 */ -#define WDIOF_POWERUNDER 0x0010 /* Power bad/power fault */ -#define WDIOF_CARDRESET 0x0020 /* Card previously reset the CPU */ -#define WDIOF_POWEROVER 0x0040 /* Power over voltage */ -#define WDIOF_SETTIMEOUT 0x0080 /* Set timeout (in seconds) */ -#define WDIOF_MAGICCLOSE 0x0100 /* Supports magic close char */ -#define WDIOF_PRETIMEOUT 0x0200 /* Pretimeout (in seconds), get/set */ -#define WDIOF_ALARMONLY 0x0400 /* Watchdog triggers a management or - other external alarm not a reboot */ -#define WDIOF_KEEPALIVEPING 0x8000 /* Keep alive ping reply */ - -#define WDIOS_DISABLECARD 0x0001 /* Turn off the watchdog timer */ -#define WDIOS_ENABLECARD 0x0002 /* Turn on the watchdog timer */ -#define WDIOS_TEMPPANIC 0x0004 /* Kernel panic on temperature trip */ - -#ifdef __KERNEL__ #include <linux/bitops.h> #include <linux/device.h> #include <linux/cdev.h> +#include <uapi/linux/watchdog.h> struct watchdog_ops; struct watchdog_device; @@ -150,7 +105,7 @@ struct watchdog_device { #define WATCHDOG_NOWAYOUT_INIT_STATUS 0 #endif -/* Use the following function to check wether or not the watchdog is active */ +/* Use the following function to check whether or not the watchdog is active */ static inline bool watchdog_active(struct watchdog_device *wdd) { return test_bit(WDOG_ACTIVE, &wdd->status); @@ -163,6 +118,13 @@ static inline void watchdog_set_nowayout(struct watchdog_device *wdd, bool noway set_bit(WDOG_NO_WAY_OUT, &wdd->status); } +/* Use the following function to check if a timeout value is invalid */ +static inline bool watchdog_timeout_invalid(struct watchdog_device *wdd, unsigned int t) +{ + return ((wdd->max_timeout != 0) && + (t < wdd->min_timeout || t > wdd->max_timeout)); +} + /* Use the following functions to manipulate watchdog driver specific data */ static inline void watchdog_set_drvdata(struct watchdog_device *wdd, void *data) { @@ -174,10 +136,10 @@ static inline void *watchdog_get_drvdata(struct watchdog_device *wdd) return wdd->driver_data; } -/* drivers/watchdog/core/watchdog_core.c */ +/* drivers/watchdog/watchdog_core.c */ +extern int watchdog_init_timeout(struct watchdog_device *wdd, + unsigned int timeout_parm, struct device *dev); extern int watchdog_register_device(struct watchdog_device *); extern void watchdog_unregister_device(struct watchdog_device *); -#endif /* __KERNEL__ */ - #endif /* ifndef _LINUX_WATCHDOG_H */ |