/******************************************************************************* * File Name: cyhal_trng.c * * Description: * Provides a high level interface for interacting with the Infineon True Random * Number Generator. This is a wrapper around the lower level PDL API. * ******************************************************************************** * \copyright * Copyright 2018-2022 Cypress Semiconductor Corporation (an Infineon company) or * an affiliate of Cypress Semiconductor Corporation * * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/ #include "cyhal_hwmgr.h" #include "cyhal_crypto_common.h" #include "cyhal_trng_impl.h" #if (CYHAL_DRIVER_AVAILABLE_TRNG) #if defined(__cplusplus) extern "C" { #endif /******************************************************************************* * Functions *******************************************************************************/ cy_rslt_t cyhal_trng_init(cyhal_trng_t *obj) { CY_ASSERT(NULL != obj); return cyhal_crypto_reserve(&(obj->base), &(obj->resource), CYHAL_CRYPTO_TRNG); } void cyhal_trng_free(cyhal_trng_t *obj) { CY_ASSERT(NULL != obj || obj->resource.type != CYHAL_RSC_CRYPTO); if (obj->resource.type != CYHAL_RSC_INVALID) { cyhal_crypto_free(obj->base, &(obj->resource), CYHAL_CRYPTO_TRNG); } } #if defined(__cplusplus) } #endif #endif /* CYHAL_DRIVER_AVAILABLE_TRNG */