RotationVectorSensor.h revision 2cf098846c83bab82272f107ba110f7c47df1763
1/* 2 * Copyright (C) 2010 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_ROTATION_VECTOR_SENSOR_H 18#define ANDROID_ROTATION_VECTOR_SENSOR_H 19 20#include <stdint.h> 21#include <sys/types.h> 22 23#include <gui/Sensor.h> 24 25#include "SensorDevice.h" 26#include "SensorInterface.h" 27#include "SecondOrderLowPassFilter.h" 28 29// --------------------------------------------------------------------------- 30namespace android { 31// --------------------------------------------------------------------------- 32 33class RotationVectorSensor : public SensorInterface { 34 SensorDevice& mSensorDevice; 35 Sensor mAcc; 36 Sensor mMag; 37 float mMagData[3]; 38 double mAccTime; 39 double mMagTime; 40 SecondOrderLowPassFilter mALowPass; 41 CascadedBiquadFilter mAX, mAY, mAZ; 42 SecondOrderLowPassFilter mMLowPass; 43 CascadedBiquadFilter mMX, mMY, mMZ; 44 45public: 46 RotationVectorSensor(sensor_t const* list, size_t count); 47 virtual bool process(sensors_event_t* outEvent, 48 const sensors_event_t& event); 49 virtual status_t activate(void* ident, bool enabled); 50 virtual status_t setDelay(void* ident, int handle, int64_t ns); 51 virtual Sensor getSensor() const; 52 virtual bool isVirtual() const { return true; } 53}; 54 55// --------------------------------------------------------------------------- 56}; // namespace android 57 58#endif // ANDROID_ROTATION_VECTOR_SENSOR_H 59