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- /**
- * Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form, except as embedded into a Nordic
- * Semiconductor ASA integrated circuit in a product or a software update for
- * such product, must reproduce the above copyright notice, this list of
- * conditions and the following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- *
- * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * 4. This software, with or without modification, must only be used with a
- * Nordic Semiconductor ASA integrated circuit.
- *
- * 5. Any software provided in binary form under this license must not be reverse
- * engineered, decompiled, modified and/or disassembled.
- *
- * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
- #ifndef CC310_BACKEND_MUTEX_H__
- #define CC310_BACKEND_MUTEX_H__
- /** @file
- *
- * @defgroup nrf_crypto_cc310_backend_mutex nrf_crypto CC310 backend mutex.
- * @{
- * @ingroup nrf_crypto_cc310_backend
- *
- * @brief Mutex control for the nrf_crypto CC310 backend.
- */
- #include "sdk_config.h"
- #include "nrf_mtx.h"
- #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310) || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_BL)
- #ifdef __cplusplus
- extern "C" {
- #endif
- extern nrf_mtx_t g_cc310_mutex;
- __STATIC_INLINE void cc310_backend_mutex_init(void);
- __STATIC_INLINE bool cc310_backend_mutex_trylock(void);
- __STATIC_INLINE void cc310_backend_mutex_unlock(void);
- #ifndef SUPPRESS_INLINE_IMPLEMENTATION
- /**@internal @brief Function initializing CC310 mutex.
- *
- * This function _must_ be called before other mutex operations.
- */
- __STATIC_INLINE void cc310_backend_mutex_init(void)
- {
- nrf_mtx_init(&g_cc310_mutex);
- }
- /**@internal @brief Function try to lock a CC310 mutex.
- *
- * @return true if lock was acquired, false if not.
- */
- __STATIC_INLINE bool cc310_backend_mutex_trylock(void)
- {
- return nrf_mtx_trylock(&g_cc310_mutex);
- }
- /**@internal @brief Unlock a CC310 mutex.
- *
- * This function _must_ only be called when holding the lock. Unlocking a mutex which you do not
- * hold will give undefined behavior.
- *
- */
- __STATIC_INLINE void cc310_backend_mutex_unlock(void)
- {
- nrf_mtx_unlock(&g_cc310_mutex);
- }
- #endif // SUPPRESS_INLINE_IMPLEMENTATION
- #ifdef __cplusplus
- }
- #endif
- #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310) || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_BL)
- /** @} */
- #endif // CC310_BACKEND_MUTEX_H__
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