blob: cc7637d0f1ca540c1d546861f1a0d5775f913141 [file] [log] [blame]
/*
*
* Copyright (c) 2022 Project CHIP Authors
* 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 the implementation of the Device Layer Platform Manager class
* for Open IOT SDK platform.
*/
#pragma once
#include "cmsis_os2.h"
#include "mbedtls/platform.h"
#include <atomic>
#include <platform/CHIPDeviceConfig.h>
#include <platform/PlatformManager.h>
#include <platform/internal/GenericPlatformManagerImpl.h>
namespace chip {
namespace DeviceLayer {
/**
* Concrete implementation of the PlatformManager singleton object for the nRF Connect SDK platforms.
*/
class PlatformManagerImpl final : public PlatformManager, public Internal::GenericPlatformManagerImpl<PlatformManagerImpl>
{
// Allow the PlatformManager interface class to delegate method calls to
// the implementation methods provided by this class.
friend PlatformManager;
// Allow the generic implementation base class to call helper methods on
// this class.
#ifndef DOXYGEN_SHOULD_SKIP_THIS
friend Internal::GenericPlatformManagerImpl<PlatformManagerImpl>;
#endif
public:
// ===== Platform-specific members that may be accessed directly by the application.
/* none so far */
private:
static constexpr uint32_t kTaskHasEventLoopRunFlag = 1 << 0;
static constexpr uint32_t kTaskHasEventLoopStopFlag = 1 << 1;
static constexpr uint32_t kPostEventFlag = 1 << 2;
static constexpr uint32_t kTimerEventFlag = 1 << 3;
// ===== Methods that implement the PlatformManager abstract interface.
CHIP_ERROR _InitChipStack(void);
void _LockChipStack();
bool _TryLockChipStack();
void _UnlockChipStack();
CHIP_ERROR _PostEvent(const ChipDeviceEvent * event);
void _RunEventLoop();
CHIP_ERROR _StartEventLoopTask();
CHIP_ERROR _StopEventLoopTask();
CHIP_ERROR PlatformTimerInit(void);
CHIP_ERROR PlatformTimerDeinit(void);
CHIP_ERROR _StartChipTimer(System::Clock::Timeout duration);
void _Shutdown();
void SetEventFlags(uint32_t flags);
void HandleTimerEvent(void);
void HandlePostEvent(void);
static void EventLoopTask(void * arg);
static void TimerCallback(void * arg);
// ===== Members for internal use by the following friends.
friend PlatformManager & PlatformMgr(void);
friend PlatformManagerImpl & PlatformMgrImpl(void);
friend class ConnectivityManagerImpl;
friend class GapEventHandler;
friend class CHIPService;
using PlatformManager::PostEvent;
using PlatformManager::PostEventOrDie;
static PlatformManagerImpl sInstance;
osEventFlagsId_t mPlatformFlags = nullptr;
osMutexId_t mChipStackMutex = nullptr;
osMutexId_t mEventTaskMutex = nullptr;
osMessageQueueId_t mQueue = nullptr;
osTimerId_t mTimer = nullptr;
bool mInitialized = false;
std::atomic<bool> mRunEventLoop;
osThreadId_t mEventTask = nullptr;
};
/**
* Returns the public interface of the PlatformManager singleton object.
*
* chip applications should use this to access features of the PlatformManager object
* that are common to all platforms.
*/
inline PlatformManager & PlatformMgr(void)
{
return PlatformManagerImpl::sInstance;
}
/**
* Returns the platform-specific implementation of the PlatformManager singleton object.
*
* chip applications can use this to gain access to features of the PlatformManager
* that are specific to the Mbed platform.
*/
inline PlatformManagerImpl & PlatformMgrImpl()
{
return PlatformManagerImpl::sInstance;
}
} // namespace DeviceLayer
} // namespace chip