| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115 | /** * 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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