1 /* 2 * Copyright (C) 2008 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_AKM_SENSOR_H 18 #define ANDROID_AKM_SENSOR_H 19 20 #include <stdint.h> 21 #include <errno.h> 22 #include <sys/cdefs.h> 23 #include <sys/types.h> 24 25 26 #include "nusensors.h" 27 #include "SensorBase.h" 28 #include "InputEventReader.h" 29 30 /*****************************************************************************/ 31 32 struct input_event; 33 34 class AkmSensor : public SensorBase { 35 public: 36 AkmSensor(); 37 virtual ~AkmSensor(); 38 39 enum { 40 Accelerometer = 0, 41 MagneticField = 1, 42 Orientation = 2, 43 numSensors 44 }; 45 46 virtual int setDelay(int32_t handle, int64_t ns); 47 virtual int enable(int32_t handle, int enabled); 48 virtual int readEvents(sensors_event_t* data, int count); 49 void processEvent(int code, int value); 50 51 private: 52 int update_delay(); 53 uint32_t mEnabled; 54 uint32_t mPendingMask; 55 InputEventCircularReader mInputReader; 56 sensors_event_t mPendingEvents[numSensors]; 57 uint64_t mDelays[numSensors]; 58 }; 59 60 /*****************************************************************************/ 61 62 #endif // ANDROID_AKM_SENSOR_H 63