diff options
Diffstat (limited to 'include/watchdog.h')
| -rw-r--r-- | include/watchdog.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/watchdog.h b/include/watchdog.h index 105b7ca810..5790205a48 100644 --- a/include/watchdog.h +++ b/include/watchdog.h @@ -16,6 +16,10 @@ #include <poller.h> #include <driver.h> +enum wdog_hw_runnning { + WDOG_HW_RUNNING_UNSUPPORTED, WDOG_HW_RUNNING, WDOG_HW_NOT_RUNNING +}; + struct watchdog { int (*set_timeout)(struct watchdog *, unsigned); const char *name; @@ -27,8 +31,21 @@ 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 *); |