SensorService.h revision 5d2707214dfb97bd8dfcc6620be36841d3c82420
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_SENSOR_SERVICE_H 18#define ANDROID_SENSOR_SERVICE_H 19 20#include <stdint.h> 21#include <sys/types.h> 22 23#include <utils/Vector.h> 24#include <utils/SortedVector.h> 25#include <utils/KeyedVector.h> 26#include <utils/threads.h> 27#include <utils/RefBase.h> 28 29#include <binder/BinderService.h> 30#include <binder/Permission.h> 31 32#include <gui/Sensor.h> 33#include <gui/SensorChannel.h> 34#include <gui/ISensorServer.h> 35#include <gui/ISensorEventConnection.h> 36 37// --------------------------------------------------------------------------- 38 39struct sensors_poll_device_t; 40struct sensors_module_t; 41 42namespace android { 43// --------------------------------------------------------------------------- 44 45class SensorService : 46 public BinderService<SensorService>, 47 public BnSensorServer, 48 protected Thread 49{ 50 friend class BinderService<SensorService>; 51 52 SensorService(); 53 virtual ~SensorService(); 54 55 virtual void onFirstRef(); 56 57 // Thread interface 58 virtual bool threadLoop(); 59 60 // ISensorServer interface 61 virtual Vector<Sensor> getSensorList(); 62 virtual sp<ISensorEventConnection> createSensorEventConnection(); 63 virtual status_t dump(int fd, const Vector<String16>& args); 64 65 66 class SensorEventConnection : public BnSensorEventConnection { 67 virtual sp<SensorChannel> getSensorChannel() const; 68 virtual status_t enableDisable(int handle, bool enabled); 69 virtual status_t setEventRate(int handle, nsecs_t ns); 70 sp<SensorService> const mService; 71 sp<SensorChannel> const mChannel; 72 SortedVector<int32_t> mSensorList; 73 public: 74 SensorEventConnection(const sp<SensorService>& service); 75 virtual ~SensorEventConnection(); 76 virtual void onFirstRef(); 77 status_t sendEvents(sensors_event_t const* buffer, size_t count); 78 bool hasSensor(int32_t handle) const; 79 bool hasAnySensor() const; 80 void addSensor(int32_t handle); 81 void removeSensor(int32_t handle); 82 }; 83 84 class SensorRecord { 85 SortedVector< wp<SensorEventConnection> > mConnections; 86 public: 87 SensorRecord(const sp<SensorEventConnection>& connection); 88 status_t addConnection(const sp<SensorEventConnection>& connection); 89 bool removeConnection(const wp<SensorEventConnection>& connection); 90 size_t getNumConnections() const { return mConnections.size(); } 91 }; 92 93 SortedVector< wp<SensorEventConnection> > getActiveConnections() const; 94 String8 getSensorName(int handle) const; 95 96 // constants 97 Vector<Sensor> mSensorList; 98 struct sensors_poll_device_t* mSensorDevice; 99 struct sensors_module_t* mSensorModule; 100 Permission mDump; 101 102 // protected by mLock 103 mutable Mutex mLock; 104 SortedVector< wp<SensorEventConnection> > mConnections; 105 DefaultKeyedVector<int, SensorRecord*> mActiveSensors; 106 SortedVector< wp<SensorEventConnection> > mActiveConnections; 107 108public: 109 static char const* getServiceName() { return "sensorservice"; } 110 111 void cleanupConnection(const wp<SensorEventConnection>& connection); 112 status_t enable(const sp<SensorEventConnection>& connection, int handle); 113 status_t disable(const sp<SensorEventConnection>& connection, int handle); 114 status_t setRate(const sp<SensorEventConnection>& connection, int handle, nsecs_t ns); 115}; 116 117// --------------------------------------------------------------------------- 118}; // namespace android 119 120#endif // ANDROID_SENSOR_SERVICE_H 121