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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_mutex.h')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_mutex.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_mutex.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_mutex.h new file mode 100644 index 0000000..3cd6241 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_mutex.h @@ -0,0 +1,111 @@ +/** + * Copyright (c) 2018 - 2018, 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__ + |