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_PROXIMITY_SENSOR_H 18 #define ANDROID_PROXIMITY_SENSOR_H 19 20 #include <stdint.h> 21 #include <errno.h> 22 #include <sys/cdefs.h> 23 #include <sys/types.h> 24 25 #include "sensors.h" 26 #include "SensorBase.h" 27 #include "InputEventReader.h" 28 29 /*****************************************************************************/ 30 31 struct input_event; 32 33 class ProximitySensor : public SensorBase { 34 int mEnabled; 35 InputEventCircularReader mInputReader; 36 sensors_event_t mPendingEvent; 37 bool mHasPendingEvent; 38 char input_sysfs_path[PATH_MAX]; 39 int input_sysfs_path_len; 40 41 int setInitialState(); 42 float indexToValue(size_t index) const; 43 44 public: 45 ProximitySensor(); 46 virtual ~ProximitySensor(); 47 virtual int readEvents(sensors_event_t* data, int count); 48 virtual bool hasPendingEvents() const; 49 virtual int enable(int32_t handle, int enabled); 50 }; 51 52 /*****************************************************************************/ 53 54 #endif // ANDROID_PROXIMITY_SENSOR_H 55
