mirror of https://github.com/ARMmbed/mbed-os.git
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
/* mbed Microcontroller Library
|
|
* Copyright (c) 2016 ARM Limited
|
|
* 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.
|
|
*/
|
|
|
|
#if defined(DEVICE_TRNG) || defined(FEATURE_PSA)
|
|
|
|
#include "hal/trng_api.h"
|
|
#include "platform/SingletonPtr.h"
|
|
#include "rtos/Mutex.h"
|
|
|
|
SingletonPtr<rtos::Mutex> mbedtls_mutex;
|
|
|
|
extern "C"
|
|
int mbedtls_hardware_poll( void *data, unsigned char *output, size_t len, size_t *olen ) {
|
|
#if defined(DEVICE_TRNG)
|
|
trng_t trng_obj;
|
|
mbedtls_mutex->lock();
|
|
trng_init(&trng_obj);
|
|
int ret = trng_get_bytes(&trng_obj, output, len, olen);
|
|
trng_free(&trng_obj);
|
|
mbedtls_mutex->unlock();
|
|
return ret;
|
|
#else /* defined(FEATURE_PSA) */
|
|
mbedtls_mutex->lock();
|
|
int ret = trng_get_bytes(NULL, output, len, olen);
|
|
mbedtls_mutex->unlock();
|
|
return ret;
|
|
#endif
|
|
}
|
|
|
|
#endif
|