90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/**
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* Copyright (c) 2016 - 2020 Nordic Semiconductor ASA and Luxoft Global Operations Gmbh.
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*
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* All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef HAL_MUTEX_H_INCLUDED
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#define HAL_MUTEX_H_INCLUDED
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#include "hal_atomic.h"
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/** @file
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* This is a simple mutex interface to be used in System Memory Manager
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* to make it thread aware.
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*
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* @defgroup hal_mutex HAL Mutex API
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* @ingroup hal_15_4
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* @{
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* @details NRF52 implementation is void and PC implementation is identical to atomic.
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*/
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#if defined ( __GNUC__ )
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#include <signal.h>
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typedef volatile sig_atomic_t mutex_t;
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#else
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#include <stdint.h>
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typedef volatile uint32_t mutex_t;
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#endif
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/**@brief Configures mutex lock before first usage.
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*
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* @param[inout] p_mutex pointer to mutex variable.
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*/
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void hal_mutex_init(mutex_t * p_mutex);
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/**@brief Atomically sets mutex. If set is failed, enters spin lock loop.
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*
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* @param[in] p_mutex pointer to mutex variable.
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*/
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void hal_mutex_lock(mutex_t * p_mutex);
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/**
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* @brief Atomically clears mutex. Every other thread, spinning at this lock may
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* try to lock it afterwards.
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*
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* @param[in] p_mutex pointer to mutex variable.
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*/
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void hal_mutex_unlock(mutex_t * p_mutex);
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/** @} */
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#endif /* HAL_MUTEX_H_INCLUDED */
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