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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.
- *
- */
- #include "sdk_common.h"
- #if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_BL)
- #include "nrf.h"
- #include "nrf_crypto_init.h"
- #include "nrf_crypto_error.h"
- #include "cc310_bl_backend_shared.h"
- #include "cc310_backend_mutex.h"
- #include "sns_silib.h"
- #include "nrf_cc310_bl_init.h"
- /**@brief Mutex to ensure single access to nrf_cc310_bl resources */
- nrf_mtx_t g_cc310_mutex;
- static uint32_t init_result_get(uint32_t crys_error)
- {
- uint32_t ret_val = NRF_ERROR_INTERNAL;
- switch (crys_error)
- {
- case SA_SILIB_RET_OK:
- ret_val = NRF_SUCCESS;
- break;
- case SA_SILIB_RET_EINVAL_HW_VERSION:
- ret_val = NRF_ERROR_CRYPTO_FEATURE_UNAVAILABLE;
- break;
- default:
- ret_val = NRF_ERROR_INTERNAL;
- break;
- }
- return ret_val;
- }
- static ret_code_t cc310_bl_backend_init(void)
- {
- uint32_t ret_val;
- CRYSError_t crys_error;
- cc310_backend_mutex_init();
- // Enable the CC310 HW.
- NRF_CRYPTOCELL->ENABLE = 1;
- // Initialize the CC310_BL run-time library
- crys_error = nrf_cc310_bl_init();
- // Disable the CC310 HW after initialization.
- NRF_CRYPTOCELL->ENABLE = 0;
- ret_val = init_result_get(crys_error);
- return ret_val;
- }
- static ret_code_t cc310_bl_backend_uninit(void)
- {
- // Disable the CC310 HW.
- NRF_CRYPTOCELL->ENABLE = 0;
- return NRF_SUCCESS;
- }
- CRYPTO_BACKEND_REGISTER(nrf_crypto_backend_info_t const cc310_bl_backend) =
- {
- .init_fn = cc310_bl_backend_init,
- .uninit_fn = cc310_bl_backend_uninit
- };
- #endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_BL)
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