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