diff options
Diffstat (limited to 'include/watchdog.h')
| -rw-r--r-- | include/watchdog.h | 52 |
1 files changed, 36 insertions, 16 deletions
diff --git a/include/watchdog.h b/include/watchdog.h index 184a218916..2a0e9d1b41 100644 --- a/include/watchdog.h +++ b/include/watchdog.h @@ -1,41 +1,57 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef INCLUDE_WATCHDOG_H # define INCLUDE_WATCHDOG_H #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 device_node; struct watchdog { int (*set_timeout)(struct watchdog *, unsigned); const char *name; - struct device_d *hwdev; - struct device_d dev; + struct device *hwdev; + struct device dev; unsigned int priority; unsigned int timeout_max; + unsigned int timeout_cur; unsigned int poller_timeout_cur; unsigned int poller_enable; + uint64_t last_ping; + int seconds_to_expire; 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_get_alias_id_from(struct watchdog *, struct device_node *); int watchdog_set_timeout(struct watchdog*, unsigned); -unsigned int of_get_watchdog_priority(struct device_node *node); +int watchdog_inhibit_all(void); #else static inline int watchdog_register(struct watchdog *w) { @@ -62,10 +78,14 @@ static inline int watchdog_set_timeout(struct watchdog*w, unsigned t) return 0; } +static inline int watchdog_inhibit_all(void) +{ + return -ENOSYS; +} -static inline unsigned int of_get_watchdog_priority(struct device_node *node) +static inline int watchdog_get_alias_id_from(struct watchdog *wd, struct device_node *np) { - return 0; + return -ENOSYS; } #endif |