83 lines
3.2 KiB
C
83 lines
3.2 KiB
C
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/**
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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_ATOMIC_H_INCLUDED
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#define HAL_ATOMIC_H_INCLUDED
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#include <stdint.h>
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/** @file
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* This file contains declarations of the Atomic section routines and necessary types.
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*
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* @defgroup hal_atomic HAL Atomic API
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* @ingroup hal_15_4
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* @{
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* @brief Module to declare HAL Atomic API
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* @details The Atomic module implements atomic section interface. This is made by disabling the global interrupts,
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* which is a hardware dependent feature. The user may call hal_atomic_start() to open an atomic section
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* (disable interrupts) and hal_atomic_end() to exit from the section (restore interrupts). The algorithm
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* supports nesting sections.
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*/
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typedef volatile uint32_t atomic_t;
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/**@brief Enters atomic section.
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*
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* @details Disables global interrupts.
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*
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* @param[in] p_atomic pointer to buffer to store current value of the status register.
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*/
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void hal_atomic_start(atomic_t * p_atomic);
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/**
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* @brief Exits atomic section
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*
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* @details Restores status register
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*
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* @param[in] p_atomic pointer to buffer to restore current value of the status register from.
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*/
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void hal_atomic_end(atomic_t * p_atomic);
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/** @} */
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#endif // HAL_ATOMIC_H_INCLUDED
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