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150 lines
4.2 KiB
150 lines
4.2 KiB
/*
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* Copyright (C) 2021 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 <thread>
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#include <aidl/android/hardware/sensors/BnSensors.h>
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#include "InputEventReader.h"
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace sensors {
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static constexpr int32_t kDefaultMaxDelayUs = 10 * 1000 * 1000;
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class ISensorsEventCallback {
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public:
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using Event = ::aidl::android::hardware::sensors::Event;
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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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using OperationMode = ::aidl::android::hardware::sensors::ISensors::OperationMode;
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using Event = ::aidl::android::hardware::sensors::Event;
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using EventPayload = ::aidl::android::hardware::sensors::Event::EventPayload;
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using SensorInfo = ::aidl::android::hardware::sensors::SensorInfo;
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using SensorType = ::aidl::android::hardware::sensors::SensorType;
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using MetaDataEventType =
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::aidl::android::hardware::sensors::Event::EventPayload::MetaData::MetaDataEventType;
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Sensor(ISensorsEventCallback* callback);
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virtual ~Sensor();
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const SensorInfo& getSensorInfo() const;
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void batch(int64_t samplingPeriodNs);
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virtual void activate(bool enable);
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ndk::ScopedAStatus flush();
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void setOperationMode(OperationMode mode);
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bool supportsDataInjection() const;
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ndk::ScopedAStatus injectEvent(const Event& event);
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protected:
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void run();
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virtual std::vector<Event> readEvents();
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virtual void readEventPayload(EventPayload&) = 0;
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virtual void driverActivate(bool enable) = 0;
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virtual void driverSetDelay(int64_t samplingPeriodNs) = 0;
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static void startThread(Sensor* sensor);
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bool isWakeUpSensor();
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void openDevInput();
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int openInput(const char *name);
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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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std::string mSensorName;
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InputEventCircularReader mInputReader;
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int mInputFd = -1;
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};
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class OnChangeSensor : public Sensor {
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public:
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OnChangeSensor(ISensorsEventCallback* callback);
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virtual void activate(bool enable) override;
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protected:
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virtual std::vector<Event> readEvents() override;
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protected:
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Event mPreviousEvent;
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bool mPreviousEventSet;
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};
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class AmbientTempSensor : public OnChangeSensor {
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public:
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AmbientTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
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protected:
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virtual void readEventPayload(EventPayload& payload) override;
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};
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class PressureSensor : public Sensor {
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public:
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PressureSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
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protected:
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virtual void readEventPayload(EventPayload& payload) override;
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};
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class MagnetometerSensor : public Sensor {
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public:
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MagnetometerSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
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protected:
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virtual void readEventPayload(EventPayload& payload) override;
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};
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class RelativeHumiditySensor : public OnChangeSensor {
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public:
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RelativeHumiditySensor(int32_t sensorHandle, ISensorsEventCallback* callback);
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protected:
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virtual void readEventPayload(EventPayload& payload) override;
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};
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class HingeAngleSensor : public OnChangeSensor {
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public:
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HingeAngleSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
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protected:
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virtual void readEventPayload(EventPayload& payload) override;
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};
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} // namespace sensors
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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