/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __WATCHDOG_PRETIMEOUT_H #define __WATCHDOG_PRETIMEOUT_H #define WATCHDOG_GOV_NAME_MAXLEN 20 struct watchdog_device; struct watchdog_governor { const char name[WATCHDOG_GOV_NAME_MAXLEN]; void (*pretimeout)(struct watchdog_device *wdd); }; #if IS_ENABLED(CONFIG_WATCHDOG_PRETIMEOUT_GOV) /* Interfaces to watchdog pretimeout governors */ int watchdog_register_governor(struct watchdog_governor *gov); void watchdog_unregister_governor(struct watchdog_governor *gov); /* Interfaces to watchdog_dev.c */ int watchdog_register_pretimeout(struct watchdog_device *wdd); void watchdog_unregister_pretimeout(struct watchdog_device *wdd); int watchdog_pretimeout_available_governors_get(char *buf); int watchdog_pretimeout_governor_get(struct watchdog_device *wdd, char *buf); int watchdog_pretimeout_governor_set(struct watchdog_device *wdd, const char *buf); #if IS_ENABLED(CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP) #define WATCHDOG_PRETIMEOUT_DEFAULT_GOV "noop" #elif IS_ENABLED(CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC) #define WATCHDOG_PRETIMEOUT_DEFAULT_GOV "panic" #endif #else static inline int watchdog_register_pretimeout(struct watchdog_device *wdd) { return 0; } static inline void watchdog_unregister_pretimeout(struct watchdog_device *wdd) { } static inline int watchdog_pretimeout_available_governors_get(char *buf) { return -EINVAL; } static inline int watchdog_pretimeout_governor_get(struct watchdog_device *wdd, char *buf) { return -EINVAL; } static inline int watchdog_pretimeout_governor_set(struct watchdog_device *wdd, const char *buf) { return -EINVAL; } #endif #endif