1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_HARDWARE_SENSORS_V2_0_SENSOR_H 18 #define ANDROID_HARDWARE_SENSORS_V2_0_SENSOR_H 19 20 #include <android/hardware/sensors/1.0/types.h> 21 22 #include <condition_variable> 23 #include <memory> 24 #include <mutex> 25 #include <thread> 26 #include <vector> 27 28 using ::android::hardware::sensors::V1_0::Event; 29 using ::android::hardware::sensors::V1_0::OperationMode; 30 using ::android::hardware::sensors::V1_0::Result; 31 using ::android::hardware::sensors::V1_0::SensorInfo; 32 using ::android::hardware::sensors::V1_0::SensorType; 33 34 namespace android { 35 namespace hardware { 36 namespace sensors { 37 namespace V2_0 { 38 namespace implementation { 39 40 class ISensorsEventCallback { 41 public: ~ISensorsEventCallback()42 virtual ~ISensorsEventCallback(){}; 43 virtual void postEvents(const std::vector<Event>& events, bool wakeup) = 0; 44 }; 45 46 class Sensor { 47 public: 48 Sensor(ISensorsEventCallback* callback); 49 virtual ~Sensor(); 50 51 const SensorInfo& getSensorInfo() const; 52 void batch(int32_t samplingPeriodNs); 53 virtual void activate(bool enable); 54 Result flush(); 55 56 void setOperationMode(OperationMode mode); 57 bool supportsDataInjection() const; 58 Result injectEvent(const Event& event); 59 60 protected: 61 void run(); 62 virtual std::vector<Event> readEvents(); 63 static void startThread(Sensor* sensor); 64 65 bool isWakeUpSensor(); 66 67 bool mIsEnabled; 68 int64_t mSamplingPeriodNs; 69 int64_t mLastSampleTimeNs; 70 SensorInfo mSensorInfo; 71 72 std::atomic_bool mStopThread; 73 std::condition_variable mWaitCV; 74 std::mutex mRunMutex; 75 std::thread mRunThread; 76 77 ISensorsEventCallback* mCallback; 78 79 OperationMode mMode; 80 }; 81 82 class OnChangeSensor : public Sensor { 83 public: 84 OnChangeSensor(ISensorsEventCallback* callback); 85 86 virtual void activate(bool enable) override; 87 88 protected: 89 virtual std::vector<Event> readEvents() override; 90 91 protected: 92 Event mPreviousEvent; 93 bool mPreviousEventSet; 94 }; 95 96 class AccelSensor : public Sensor { 97 public: 98 AccelSensor(int32_t sensorHandle, ISensorsEventCallback* callback); 99 }; 100 101 class GyroSensor : public Sensor { 102 public: 103 GyroSensor(int32_t sensorHandle, ISensorsEventCallback* callback); 104 }; 105 106 class AmbientTempSensor : public OnChangeSensor { 107 public: 108 AmbientTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback); 109 }; 110 111 class DeviceTempSensor : public OnChangeSensor { 112 public: 113 DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback); 114 }; 115 116 class PressureSensor : public Sensor { 117 public: 118 PressureSensor(int32_t sensorHandle, ISensorsEventCallback* callback); 119 }; 120 121 class MagnetometerSensor : public Sensor { 122 public: 123 MagnetometerSensor(int32_t sensorHandle, ISensorsEventCallback* callback); 124 }; 125 126 class LightSensor : public OnChangeSensor { 127 public: 128 LightSensor(int32_t sensorHandle, ISensorsEventCallback* callback); 129 }; 130 131 class ProximitySensor : public OnChangeSensor { 132 public: 133 ProximitySensor(int32_t sensorHandle, ISensorsEventCallback* callback); 134 }; 135 136 class RelativeHumiditySensor : public OnChangeSensor { 137 public: 138 RelativeHumiditySensor(int32_t sensorHandle, ISensorsEventCallback* callback); 139 }; 140 141 } // namespace implementation 142 } // namespace V2_0 143 } // namespace sensors 144 } // namespace hardware 145 } // namespace android 146 147 #endif // ANDROID_HARDWARE_SENSORS_V2_0_SENSOR_H 148