112 lines
3.6 KiB
C
112 lines
3.6 KiB
C
/**
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* Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
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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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* 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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* 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 CC310_BACKEND_MUTEX_H__
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#define CC310_BACKEND_MUTEX_H__
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/** @file
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*
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* @defgroup nrf_crypto_cc310_backend_mutex nrf_crypto CC310 backend mutex.
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* @{
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* @ingroup nrf_crypto_cc310_backend
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*
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* @brief Mutex control for the nrf_crypto CC310 backend.
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*/
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#include "sdk_config.h"
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#include "nrf_mtx.h"
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310) || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_BL)
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern nrf_mtx_t g_cc310_mutex;
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__STATIC_INLINE void cc310_backend_mutex_init(void);
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__STATIC_INLINE bool cc310_backend_mutex_trylock(void);
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__STATIC_INLINE void cc310_backend_mutex_unlock(void);
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#ifndef SUPPRESS_INLINE_IMPLEMENTATION
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/**@internal @brief Function initializing CC310 mutex.
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*
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* This function _must_ be called before other mutex operations.
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*/
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__STATIC_INLINE void cc310_backend_mutex_init(void)
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{
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nrf_mtx_init(&g_cc310_mutex);
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}
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/**@internal @brief Function try to lock a CC310 mutex.
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*
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* @return true if lock was acquired, false if not.
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*/
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__STATIC_INLINE bool cc310_backend_mutex_trylock(void)
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{
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return nrf_mtx_trylock(&g_cc310_mutex);
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}
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/**@internal @brief Unlock a CC310 mutex.
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*
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* This function _must_ only be called when holding the lock. Unlocking a mutex which you do not
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* hold will give undefined behavior.
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*
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*/
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__STATIC_INLINE void cc310_backend_mutex_unlock(void)
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{
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nrf_mtx_unlock(&g_cc310_mutex);
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}
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#endif // SUPPRESS_INLINE_IMPLEMENTATION
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#ifdef __cplusplus
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}
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#endif
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310) || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_BL)
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/** @} */
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#endif // CC310_BACKEND_MUTEX_H__
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