blob: d6751849c7a8998e66e0ba44266ae4c07f0f01ec [file] [log] [blame]
/*
*
* Copyright (c) 2020 Project CHIP Authors
* Copyright (c) 2020 Nest Labs, Inc.
* All rights reserved.
*
* 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.
*/
/**
* @file
* Provides an implementation of the PlatformManager object
* for MW320 platforms using the NXP MW320 SDK.
*/
/* this file behaves like a config.h, comes first */
#include <platform/internal/CHIPDeviceLayerInternal.h>
#include <crypto/CHIPCryptoPAL.h>
#include <lib/support/TimeUtils.h>
#include <lwip/tcpip.h>
#include <platform/PlatformManager.h>
#include <platform/internal/GenericPlatformManagerImpl_FreeRTOS.ipp>
#include <platform/nxp/mw320/DeviceInfoProviderImpl.h>
#include <platform/nxp/mw320/DiagnosticDataProviderImpl.h>
#if defined(MBEDTLS_USE_TINYCRYPT)
#include "ecc.h"
#endif
namespace chip {
namespace DeviceLayer {
PlatformManagerImpl PlatformManagerImpl::sInstance;
#if defined(MBEDTLS_USE_TINYCRYPT)
sys_mutex_t PlatformManagerImpl::rngMutexHandle = NULL;
#endif
static int app_entropy_source(void * data, unsigned char * output, size_t len, size_t * olen)
{
*olen = len;
return 0;
}
CHIP_ERROR InitClock_RealTime()
{
System::Clock::Microseconds64 curTime =
System::Clock::Microseconds64((static_cast<uint64_t>(CHIP_SYSTEM_CONFIG_VALID_REAL_TIME_THRESHOLD) * UINT64_C(1000000)));
// Use CHIP_SYSTEM_CONFIG_VALID_REAL_TIME_THRESHOLD as the initial value of RealTime.
// Then the RealTime obtained from GetClock_RealTime will be always valid.
return System::SystemClock().SetClock_RealTime(curTime);
}
#if defined(MBEDTLS_USE_TINYCRYPT)
int PlatformManagerImpl::uECC_RNG_Function(uint8_t * dest, unsigned int size)
{
int res;
sys_mutex_lock(&rngMutexHandle);
res = (chip::Crypto::DRBG_get_bytes(dest, size) == CHIP_NO_ERROR) ? size : 0;
sys_mutex_unlock(&rngMutexHandle);
return res;
}
#endif
CHIP_ERROR PlatformManagerImpl::_InitChipStack(void)
{
CHIP_ERROR err;
// Initialize the configuration system.
err = Internal::MW320Config::Init();
SuccessOrExit(err);
SetDiagnosticDataProvider(&DiagnosticDataProviderImpl::GetDefaultInstance());
SetDeviceInfoProvider(&DeviceInfoProviderImpl::GetDefaultInstance());
// Initialize LwIP.
// tcpip_init(NULL, NULL);
err = chip::Crypto::add_entropy_source(app_entropy_source, NULL, 16);
SuccessOrExit(err);
#if defined(MBEDTLS_USE_TINYCRYPT)
/* Set RNG function for tinycrypt operations. */
err_t ret;
ret = sys_mutex_new(&rngMutexHandle);
VerifyOrExit((ERR_OK == ret), err = CHIP_ERROR_NO_MEMORY);
uECC_set_rng(PlatformManagerImpl::uECC_RNG_Function);
#endif
// Call _InitChipStack() on the generic implementation base class
// to finish the initialization process.
// err = Internal::GenericPlatformManagerImpl_FreeRTOS<PlatformManagerImpl>::_InitChipStack();
// SuccessOrExit(err);
ReturnErrorOnFailure(Internal::GenericPlatformManagerImpl_FreeRTOS<PlatformManagerImpl>::_InitChipStack());
ReturnErrorOnFailure(InitClock_RealTime());
exit:
return err;
}
void PlatformManagerImpl::_Shutdown()
{
uint64_t upTime = 0;
if (GetDiagnosticDataProvider().GetUpTime(upTime) == CHIP_NO_ERROR)
{
uint32_t totalOperationalHours = 0;
if (ConfigurationMgr().GetTotalOperationalHours(totalOperationalHours) == CHIP_NO_ERROR)
{
ConfigurationMgr().StoreTotalOperationalHours(totalOperationalHours + static_cast<uint32_t>(upTime / 3600));
}
else
{
ChipLogError(DeviceLayer, "Failed to get total operational hours of the Node");
}
}
else
{
ChipLogError(DeviceLayer, "Failed to get current uptime since the Node’s last reboot");
}
Internal::GenericPlatformManagerImpl_FreeRTOS<PlatformManagerImpl>::_Shutdown();
}
} // namespace DeviceLayer
} // namespace chip