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56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @addtogroup HAL
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* @{
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* @defgroup HALWatchdog HAL Watchdog
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* @{
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*/
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#ifndef _HAL_WATCHDOG_H_
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#define _HAL_WATCHDOG_H_
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Set a recurring watchdog timer to fire no sooner than in 'expire_secs'
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* seconds. Watchdog should be tickled periodically with a frequency
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* smaller than 'expire_secs'. Watchdog needs to be then started with
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* a call to :c:func:`hal_watchdog_enable()`.
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*
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* @param expire_msecs Watchdog timer expiration time in msecs
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*
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* @return < 0 on failure; on success return the actual
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* expiration time as positive value
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*/
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int hal_watchdog_init(uint32_t expire_msecs);
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/**
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* Starts the watchdog.
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*/
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void hal_watchdog_enable(void);
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/**
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* Tickles the watchdog. This needs to be done periodically, before
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* the value configured in :c:func:`hal_watchdog_init()` expires.
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*/
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void hal_watchdog_tickle(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _HAL_WATCHDOG_H_ */
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/**
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* @} HALWatchdog
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* @} HAL
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*/
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