src/adaptations/device-layer/EFR32/ThreadStackManagerImpl.cpp

/*
 *
 *    Copyright (c) 2019 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 ThreadStackManager object for
 *          EFR32 platforms using the Silicon Labs SDK and the OpenThread
 *          stack.
 *
 */

#include <Weave/DeviceLayer/internal/WeaveDeviceLayerInternal.h>
#include <Weave/DeviceLayer/ThreadStackManager.h>
#include <Weave/DeviceLayer/OpenThread/OpenThreadUtils.h>

#include <Weave/DeviceLayer/FreeRTOS/GenericThreadStackManagerImpl_FreeRTOS.ipp>
#include <Weave/DeviceLayer/OpenThread/GenericThreadStackManagerImpl_OpenThread_LwIP.ipp>

namespace nl {
namespace Weave {
namespace DeviceLayer {

using namespace ::nl::Weave::DeviceLayer::Internal;

ThreadStackManagerImpl ThreadStackManagerImpl::sInstance;

WEAVE_ERROR ThreadStackManagerImpl::_InitThreadStack(void)
{
    return InitThreadStack(NULL);
}

WEAVE_ERROR ThreadStackManagerImpl::InitThreadStack(otInstance *otInst)
{
    WEAVE_ERROR err = WEAVE_NO_ERROR;

    // Initialize the generic implementation base classes.
    err = GenericThreadStackManagerImpl_FreeRTOS<ThreadStackManagerImpl>::DoInit();
    SuccessOrExit(err);
    err = GenericThreadStackManagerImpl_OpenThread_LwIP<ThreadStackManagerImpl>::DoInit(otInst);
    SuccessOrExit(err);

exit:
    return err;
}

bool ThreadStackManagerImpl::IsInitialized()
{
    return sInstance.mThreadStackLock != NULL;
}

} // namespace DeviceLayer
} // namespace Weave
} // namespace nl

using namespace ::nl::Weave::DeviceLayer;

/**
 * Glue function called directly by the OpenThread stack when tasklet processing work
 * is pending.
 */
extern "C" void otTaskletsSignalPending(otInstance *p_instance)
{
    ThreadStackMgrImpl().SignalThreadActivityPending();
}

/**
 * Glue function called directly by the OpenThread stack when system event processing work
 * is pending.
 */
extern "C" void otSysEventSignalPending(void)
{
    BaseType_t yieldRequired = ThreadStackMgrImpl().SignalThreadActivityPendingFromISR();
    portYIELD_FROM_ISR(yieldRequired);
}