diff options
Diffstat (limited to 'include/watchdog.h')
| -rw-r--r-- | include/watchdog.h | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/include/watchdog.h b/include/watchdog.h index 184a218916..9741570ce2 100644 --- a/include/watchdog.h +++ b/include/watchdog.h @@ -15,6 +15,13 @@ #include <poller.h> #include <driver.h> +#include <param.h> + +enum wdog_hw_runnning { + WDOG_HW_RUNNING_UNSUPPORTED = PARAM_TRISTATE_UNKNOWN, + WDOG_HW_RUNNING = PARAM_TRISTATE_TRUE, + WDOG_HW_NOT_RUNNING = PARAM_TRISTATE_FALSE +}; struct watchdog { int (*set_timeout)(struct watchdog *, unsigned); @@ -27,15 +34,27 @@ struct watchdog { unsigned int poller_enable; struct poller_async poller; struct list_head list; + int running; /* enum wdog_hw_running */ }; +/* + * Use the following function to check whether or not the hardware watchdog + * is running + */ +static inline int watchdog_hw_running(struct watchdog *w) +{ + if (w->running == WDOG_HW_RUNNING_UNSUPPORTED) + return -ENOSYS; + + return w->running == WDOG_HW_RUNNING; +} + #ifdef CONFIG_WATCHDOG int watchdog_register(struct watchdog *); int watchdog_deregister(struct watchdog *); struct watchdog *watchdog_get_default(void); struct watchdog *watchdog_get_by_name(const char *name); int watchdog_set_timeout(struct watchdog*, unsigned); -unsigned int of_get_watchdog_priority(struct device_node *node); #else static inline int watchdog_register(struct watchdog *w) { @@ -61,12 +80,6 @@ static inline int watchdog_set_timeout(struct watchdog*w, unsigned t) { return 0; } - - -static inline unsigned int of_get_watchdog_priority(struct device_node *node) -{ - return 0; -} #endif #define WATCHDOG_DEFAULT_PRIORITY 100 |