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/*
* Copyright (C) 2019 The Android Open Source Project
*
* 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.
*/
#pragma once
#include <android/hardware/sensors/2.1/types.h>
#include <fcntl.h>
#include <poll.h>
#include <unistd.h>
#include <condition_variable>
#include <memory>
#include <mutex>
#include <thread>
#include <vector>
using ::android::hardware::sensors::V1_0::OperationMode;
using ::android::hardware::sensors::V1_0::Result;
using ::android::hardware::sensors::V2_1::Event;
using ::android::hardware::sensors::V2_1::SensorInfo;
using ::android::hardware::sensors::V2_1::SensorType;
namespace android {
namespace hardware {
namespace sensors {
namespace V2_1 {
namespace subhal {
namespace implementation {
class ISensorsEventCallback {
public:
virtual ~ISensorsEventCallback(){};
virtual void postEvents(const std::vector<Event>& events, bool wakeup) = 0;
};
class Sensor {
public:
Sensor(int32_t sensorHandle, ISensorsEventCallback* callback);
virtual ~Sensor();
const SensorInfo& getSensorInfo() const;
virtual void batch(int32_t samplingPeriodNs);
virtual void activate(bool enable);
virtual Result flush();
virtual void setOperationMode(OperationMode mode);
bool supportsDataInjection() const;
Result injectEvent(const Event& event);
protected:
virtual void run();
virtual std::vector<Event> readEvents();
static void startThread(Sensor* sensor);
bool isWakeUpSensor();
bool mIsEnabled;
int64_t mSamplingPeriodNs;
int64_t mLastSampleTimeNs;
SensorInfo mSensorInfo;
std::atomic_bool mStopThread;
std::condition_variable mWaitCV;
std::mutex mRunMutex;
std::thread mRunThread;
ISensorsEventCallback* mCallback;
OperationMode mMode;
};
class OneShotSensor : public Sensor {
public:
OneShotSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
virtual void batch(int32_t /* samplingPeriodNs */) override {}
virtual Result flush() override { return Result::BAD_VALUE; }
};
class UdfpsSensor : public OneShotSensor {
public:
UdfpsSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
virtual ~UdfpsSensor() override;
virtual void activate(bool enable) override;
virtual void setOperationMode(OperationMode mode) override;
protected:
virtual void run() override;
virtual std::vector<Event> readEvents();
private:
void interruptPoll();
struct pollfd mPolls[2];
int mWaitPipeFd[2];
int mPollFd;
int mScreenX;
int mScreenY;
};
} // namespace implementation
} // namespace subhal
} // namespace V2_1
} // namespace sensors
} // namespace hardware
} // namespace android