mirror of https://github.com/ARMmbed/mbed-os.git
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/*
|
|
* platform_alt.c
|
|
*
|
|
* Copyright (C) 2018, Arm Limited, All Rights Reserved
|
|
* 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 "mbedtls/platform.h"
|
|
#if defined(MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT)
|
|
#include "platform/SingletonPtr.h"
|
|
#include "platform/PlatformMutex.h"
|
|
|
|
mbedtls_platform_context plat_ctx = { { 0 } };
|
|
extern SingletonPtr<PlatformMutex> mbedtls_mutex;
|
|
|
|
int mbedtls_platform_setup( mbedtls_platform_context *unused_ctx )
|
|
{
|
|
int ret = 0;
|
|
mbedtls_mutex->lock();
|
|
++plat_ctx.reference_count;
|
|
|
|
if( plat_ctx.reference_count == 1 )
|
|
{
|
|
/* call platform specific code to setup crypto driver */
|
|
ret = crypto_platform_setup( &plat_ctx.platform_impl_ctx );
|
|
}
|
|
mbedtls_mutex->unlock();
|
|
return ( ret );
|
|
}
|
|
|
|
void mbedtls_platform_teardown( mbedtls_platform_context *unused_ctx )
|
|
{
|
|
mbedtls_mutex->lock();
|
|
--plat_ctx.reference_count;
|
|
if( plat_ctx.reference_count < 1 )
|
|
{
|
|
/* call platform specific code to terminate crypto driver */
|
|
crypto_platform_terminate( &plat_ctx.platform_impl_ctx );
|
|
plat_ctx.reference_count = 0;
|
|
}
|
|
mbedtls_mutex->unlock();
|
|
}
|
|
|
|
#endif /* MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT*/
|