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mbed/hal/trng_api.h@0:c88c3b616c00, 2020-03-16 (annotated)

Committer:
IKobayashi
Date:
Mon Mar 16 23:37:42 2020 +0900
Revision:
0:c88c3b616c00
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
IKobayashi 0:c88c3b616c00 1
IKobayashi 0:c88c3b616c00 2 /** \addtogroup hal */
IKobayashi 0:c88c3b616c00 3 /** @{*/
IKobayashi 0:c88c3b616c00 4 /* mbed Microcontroller Library
IKobayashi 0:c88c3b616c00 5 * Copyright (c) 2016 ARM Limited
IKobayashi 0:c88c3b616c00 6 *
IKobayashi 0:c88c3b616c00 7 * Licensed under the Apache License, Version 2.0 (the "License");
IKobayashi 0:c88c3b616c00 8 * you may not use this file except in compliance with the License.
IKobayashi 0:c88c3b616c00 9 * You may obtain a copy of the License at
IKobayashi 0:c88c3b616c00 10 *
IKobayashi 0:c88c3b616c00 11 * http://www.apache.org/licenses/LICENSE-2.0
IKobayashi 0:c88c3b616c00 12 *
IKobayashi 0:c88c3b616c00 13 * Unless required by applicable law or agreed to in writing, software
IKobayashi 0:c88c3b616c00 14 * distributed under the License is distributed on an "AS IS" BASIS,
IKobayashi 0:c88c3b616c00 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
IKobayashi 0:c88c3b616c00 16 * See the License for the specific language governing permissions and
IKobayashi 0:c88c3b616c00 17 * limitations under the License.
IKobayashi 0:c88c3b616c00 18 */
IKobayashi 0:c88c3b616c00 19 #ifndef MBED_TRNG_API_H
IKobayashi 0:c88c3b616c00 20 #define MBED_TRNG_API_H
IKobayashi 0:c88c3b616c00 21
IKobayashi 0:c88c3b616c00 22 #include <stddef.h>
IKobayashi 0:c88c3b616c00 23 #include "device.h"
IKobayashi 0:c88c3b616c00 24
IKobayashi 0:c88c3b616c00 25 #if DEVICE_TRNG
IKobayashi 0:c88c3b616c00 26
IKobayashi 0:c88c3b616c00 27 /** TRNG HAL structure. trng_s is declared in the target's HAL
IKobayashi 0:c88c3b616c00 28 */
IKobayashi 0:c88c3b616c00 29 typedef struct trng_s trng_t;
IKobayashi 0:c88c3b616c00 30
IKobayashi 0:c88c3b616c00 31 #ifdef __cplusplus
IKobayashi 0:c88c3b616c00 32 extern "C" {
IKobayashi 0:c88c3b616c00 33 #endif
IKobayashi 0:c88c3b616c00 34
IKobayashi 0:c88c3b616c00 35 /**
IKobayashi 0:c88c3b616c00 36 * \defgroup hal_trng TRNG hal functions
IKobayashi 0:c88c3b616c00 37 * @{
IKobayashi 0:c88c3b616c00 38 */
IKobayashi 0:c88c3b616c00 39
IKobayashi 0:c88c3b616c00 40 /** Initialize the TRNG peripheral
IKobayashi 0:c88c3b616c00 41 *
IKobayashi 0:c88c3b616c00 42 * @param obj The TRNG object
IKobayashi 0:c88c3b616c00 43 */
IKobayashi 0:c88c3b616c00 44 void trng_init(trng_t *obj);
IKobayashi 0:c88c3b616c00 45
IKobayashi 0:c88c3b616c00 46 /** Deinitialize the TRNG peripheral
IKobayashi 0:c88c3b616c00 47 *
IKobayashi 0:c88c3b616c00 48 * @param obj The TRNG object
IKobayashi 0:c88c3b616c00 49 */
IKobayashi 0:c88c3b616c00 50 void trng_free(trng_t *obj);
IKobayashi 0:c88c3b616c00 51
IKobayashi 0:c88c3b616c00 52 /** Get random data from TRNG peripheral
IKobayashi 0:c88c3b616c00 53 *
IKobayashi 0:c88c3b616c00 54 * @param obj The TRNG object
IKobayashi 0:c88c3b616c00 55 * @param output The pointer to an output array
IKobayashi 0:c88c3b616c00 56 * @param length The size of output data, to avoid buffer overwrite
IKobayashi 0:c88c3b616c00 57 * @param output_length The length of generated data
IKobayashi 0:c88c3b616c00 58 * @return 0 success, -1 fail
IKobayashi 0:c88c3b616c00 59 */
IKobayashi 0:c88c3b616c00 60 int trng_get_bytes(trng_t *obj, uint8_t *output, size_t length, size_t *output_length);
IKobayashi 0:c88c3b616c00 61
IKobayashi 0:c88c3b616c00 62 /**@}*/
IKobayashi 0:c88c3b616c00 63
IKobayashi 0:c88c3b616c00 64 #ifdef __cplusplus
IKobayashi 0:c88c3b616c00 65 }
IKobayashi 0:c88c3b616c00 66 #endif
IKobayashi 0:c88c3b616c00 67
IKobayashi 0:c88c3b616c00 68 #endif
IKobayashi 0:c88c3b616c00 69
IKobayashi 0:c88c3b616c00 70 #endif
IKobayashi 0:c88c3b616c00 71
IKobayashi 0:c88c3b616c00 72 /** @}*/