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123 lines
3.4 KiB
123 lines
3.4 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <android/hardware/sensors/2.1/types.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <unistd.h>
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#include <condition_variable>
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#include <memory>
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#include <mutex>
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#include <thread>
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#include <vector>
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using ::android::hardware::sensors::V1_0::OperationMode;
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using ::android::hardware::sensors::V1_0::Result;
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using ::android::hardware::sensors::V2_1::Event;
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using ::android::hardware::sensors::V2_1::SensorInfo;
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using ::android::hardware::sensors::V2_1::SensorType;
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namespace android {
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namespace hardware {
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namespace sensors {
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namespace V2_1 {
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namespace subhal {
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namespace implementation {
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class ISensorsEventCallback {
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public:
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virtual ~ISensorsEventCallback(){};
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virtual void postEvents(const std::vector<Event>& events, bool wakeup) = 0;
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};
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class Sensor {
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public:
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Sensor(int32_t sensorHandle, ISensorsEventCallback* callback);
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virtual ~Sensor();
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const SensorInfo& getSensorInfo() const;
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virtual void batch(int32_t samplingPeriodNs);
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virtual void activate(bool enable);
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virtual Result flush();
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virtual void setOperationMode(OperationMode mode);
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bool supportsDataInjection() const;
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Result injectEvent(const Event& event);
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protected:
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virtual void run();
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virtual std::vector<Event> readEvents();
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static void startThread(Sensor* sensor);
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bool isWakeUpSensor();
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bool mIsEnabled;
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int64_t mSamplingPeriodNs;
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int64_t mLastSampleTimeNs;
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SensorInfo mSensorInfo;
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std::atomic_bool mStopThread;
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std::condition_variable mWaitCV;
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std::mutex mRunMutex;
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std::thread mRunThread;
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ISensorsEventCallback* mCallback;
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OperationMode mMode;
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};
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class OneShotSensor : public Sensor {
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public:
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OneShotSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
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virtual void batch(int32_t /* samplingPeriodNs */) override {}
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virtual Result flush() override { return Result::BAD_VALUE; }
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};
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class SysfsPollingOneShotSensor : public OneShotSensor {
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public:
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SysfsPollingOneShotSensor(int32_t sensorHandle, ISensorsEventCallback* callback,
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const std::string& pollPath, const std::string& name,
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const std::string& typeAsString, SensorType type);
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virtual ~SysfsPollingOneShotSensor() override;
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virtual void activate(bool enable) override;
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virtual void activate(bool enable, bool notify, bool lock);
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virtual void setOperationMode(OperationMode mode) override;
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virtual std::vector<Event> readEvents() override;
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virtual void fillEventData(Event& event);
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protected:
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virtual void run() override;
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private:
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void interruptPoll();
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struct pollfd mPolls[2];
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int mWaitPipeFd[2];
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int mPollFd;
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};
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} // namespace implementation
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} // namespace subhal
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} // namespace V2_1
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} // namespace sensors
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} // namespace hardware
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} // namespace android
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