mirror of https://github.com/ARMmbed/mbed-os.git
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
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/** \addtogroup hal */
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/** @{*/
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/* mbed Microcontroller Library
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* Copyright (c) 2016 ARM Limited
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_TRNG_API_H
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#define MBED_TRNG_API_H
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#include <stddef.h>
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#include "device.h"
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#if DEVICE_TRNG
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/** TRNG HAL structure. trng_s is declared in the target's HAL
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*/
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typedef struct trng_s trng_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \defgroup hal_trng TRNG hal functions
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* @{
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*/
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/** Initialize the TRNG peripheral
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*
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* @param obj The TRNG object
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*/
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void trng_init(trng_t *obj);
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/** Deinitialize the TRNG peripheral
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*
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* @param obj The TRNG object
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*/
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void trng_free(trng_t *obj);
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/** Get random data from TRNG peripheral
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*
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* @param obj The TRNG object
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* @param output The pointer to an output array
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* @param length The size of output data, to avoid buffer overwrite
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* @param output_length The length of generated data
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* @return 0 success, -1 fail
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*/
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int trng_get_bytes(trng_t *obj, uint8_t *output, size_t length, size_t *output_length);
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/**@}*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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/** @}*/
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