| /* |
| * Copyright (C) 2017 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. |
| */ |
| |
| #ifndef ANDROID_SENSORHAL_BASE_SENSOR_OBJECT_H |
| #define ANDROID_SENSORHAL_BASE_SENSOR_OBJECT_H |
| |
| #include "Utils.h" |
| #include <cstdint> |
| |
| struct sensor_t; |
| struct sensors_event_t; |
| |
| namespace android { |
| namespace SensorHalExt { |
| |
| class SensorEventCallback; |
| |
| class BaseSensorObject : virtual public REF_BASE(BaseSensorObject) { |
| public: |
| BaseSensorObject(); |
| virtual ~BaseSensorObject() = default; |
| |
| // always called by DynamicSensorManager, callback must point to |
| // valid object throughout life cycle of BaseSensorObject |
| bool setEventCallback(SensorEventCallback* callback); |
| |
| // virtual functions to get sensor information and operate sensor |
| virtual const sensor_t* getSensor() const = 0; |
| |
| // get uuid of sensor, default implementation set it to all zero, means does not have a uuid. |
| virtual void getUuid(uint8_t* uuid) const; |
| |
| // enable sensor |
| virtual int enable(bool enable) = 0; |
| |
| // set sample period and batching period of sensor. |
| // both sample period and batch period are in nano-seconds. |
| virtual int batch(int64_t samplePeriod, int64_t batchPeriod) = 0; |
| |
| // flush sensor, default implementation will send a flush complete event back. |
| virtual int flush(); |
| |
| protected: |
| // utility function for sub-class |
| void generateEvent(const sensors_event_t &e); |
| private: |
| SensorEventCallback* mCallback; |
| }; |
| |
| } // namespace SensorHalExt |
| } // namespace android |
| |
| #endif // ANDROID_SENSORHAL_BASE_SENSOR_OBJECT_H |
| |