From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/watchdog/watchdog_pretimeout.h | 61 ++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 drivers/watchdog/watchdog_pretimeout.h (limited to 'drivers/watchdog/watchdog_pretimeout.h') diff --git a/drivers/watchdog/watchdog_pretimeout.h b/drivers/watchdog/watchdog_pretimeout.h new file mode 100644 index 000000000..a3f1abc68 --- /dev/null +++ b/drivers/watchdog/watchdog_pretimeout.h @@ -0,0 +1,61 @@ +/* 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 -- cgit v1.2.3