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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"
- #include "sdk_config.h"
- #if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OPTIGA)
- #include "nrf_crypto_init.h"
- #include "nrf_crypto_rng.h"
- #include "nrf_log.h"
- /*lint -save -e????*/
- #include "optiga/optiga_util.h"
- #include "optiga/ifx_i2c/ifx_i2c.h"
- /*lint -restore*/
- optiga_comms_t optiga_comms = {(void*)&ifx_i2c_context_0, NULL, NULL};
- // need to forward declare these, because they are not exported through the PAL API
- void pal_gpio_init(void);
- void pal_os_event_init(void);
- /*************************************************************************
- * functions
- *************************************************************************/
- static int32_t optiga_init(void)
- {
- int32_t status = (int32_t) OPTIGA_LIB_ERROR;
- // Initialize PAL
- pal_gpio_init();
- pal_os_event_init();
- status = optiga_util_open_application(&optiga_comms);
- if (OPTIGA_LIB_SUCCESS != status)
- {
- NRF_LOG_INFO("Failure: CmdLib_OpenApplication(): 0x%04X", status);
- return status;
- }
- NRF_LOG_INFO("Success: CmdLib_OpenApplication(): 0x%04X", status);
- return OPTIGA_LIB_SUCCESS;
- }
- /** @internal @brief Function to initialize OPTIGA backend - open the application.
- */
- static ret_code_t optiga_backend_init(void)
- {
- if(optiga_init() != OPTIGA_LIB_SUCCESS)
- {
- return NRF_ERROR_INTERNAL;
- }
- #if defined(NRF_CRYPTO_RNG_AUTO_INIT_ENABLED) && (NRF_CRYPTO_RNG_AUTO_INIT_ENABLED == 1)
- ret_code_t ret_val;
- ret_val = nrf_crypto_rng_init(NULL, NULL);
- return ret_val;
- #elif defined(NRF_CRYPTO_RNG_AUTO_INIT_ENABLED) && (NRF_CRYPTO_RNG_AUTO_INIT_ENABLED == 0)
- return NRF_SUCCESS;
- #else
- #warning NRF_CRYPTO_RNG_AUTO_INIT_ENABLED define not found in sdk_config.h (Is the sdk_config.h valid?).
- #endif // NRF_CRYPTO_RNG_AUTO_INIT_ENABLED
- }
- /** @internal @brief Function to uninitialize OPTIGA backend - currently no implementation is required.
- */
- static ret_code_t optiga_backend_uninit(void)
- {
- // Empty implementation
- return NRF_SUCCESS;
- }
- CRYPTO_BACKEND_REGISTER(nrf_crypto_backend_info_t const optiga_backend) =
- {
- .init_fn = optiga_backend_init,
- .uninit_fn = optiga_backend_uninit,
- };
- #endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OPTIGA)
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