SensorService.h revision 71d7a5c289c6ef6b5fc86dd4784a075ca6470e38
1fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian/* 2fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * Copyright (C) 2010 The Android Open Source Project 3fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * 4fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 5fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * you may not use this file except in compliance with the License. 6fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * You may obtain a copy of the License at 7fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * 8fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 9fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * 10fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * Unless required by applicable law or agreed to in writing, software 11fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * distributed under the License is distributed on an "AS IS" BASIS, 12fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * See the License for the specific language governing permissions and 14fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian * limitations under the License. 15fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian */ 16fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 17fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#ifndef ANDROID_SENSOR_SERVICE_H 18fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#define ANDROID_SENSOR_SERVICE_H 19fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 20fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <stdint.h> 21fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <sys/types.h> 22fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 23fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <utils/Vector.h> 24fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <utils/SortedVector.h> 25fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <utils/KeyedVector.h> 26fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <utils/threads.h> 27fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <utils/RefBase.h> 28fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 29fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <binder/BinderService.h> 30fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <binder/Permission.h> 31fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 32fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <gui/Sensor.h> 33fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <gui/SensorChannel.h> 34fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <gui/ISensorServer.h> 35fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <gui/ISensorEventConnection.h> 36fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 37fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian// --------------------------------------------------------------------------- 38fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 39fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopianstruct sensors_poll_device_t; 40fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopianstruct sensors_module_t; 41fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 42fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopiannamespace android { 43fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian// --------------------------------------------------------------------------- 44fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 45fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopianclass SensorService : 46fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian public BinderService<SensorService>, 47fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian public BnSensorServer, 48fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian protected Thread 49fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian{ 50fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian friend class BinderService<SensorService>; 51fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 5224d72350f321c17b0bfe1ef3fd52d4070a1c02c3Mathias Agopian static const nsecs_t MINIMUM_EVENTS_PERIOD = 1000000; // 1000 Hz 5324d72350f321c17b0bfe1ef3fd52d4070a1c02c3Mathias Agopian static const nsecs_t DEFAULT_EVENTS_PERIOD = 200000000; // 5 Hz 547c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 55fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SensorService(); 56fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual ~SensorService(); 57fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 58fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual void onFirstRef(); 59fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 60fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian // Thread interface 61fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual bool threadLoop(); 62fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 63fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian // ISensorServer interface 64fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual Vector<Sensor> getSensorList(); 65fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual sp<ISensorEventConnection> createSensorEventConnection(); 66fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual status_t dump(int fd, const Vector<String16>& args); 67fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 68fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 69fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian class SensorEventConnection : public BnSensorEventConnection { 707c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian virtual ~SensorEventConnection(); 717c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian virtual void onFirstRef(); 72fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual sp<SensorChannel> getSensorChannel() const; 73fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual status_t enableDisable(int handle, bool enabled); 74fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual status_t setEventRate(int handle, nsecs_t ns); 757c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 76fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian sp<SensorService> const mService; 77fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian sp<SensorChannel> const mChannel; 7871d7a5c289c6ef6b5fc86dd4784a075ca6470e38Mathias Agopian mutable Mutex mConnectionLock; 797c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 8071d7a5c289c6ef6b5fc86dd4784a075ca6470e38Mathias Agopian // protected mConnectionLock 817c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian struct SensorInfo { 827c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian SensorInfo() : ns(DEFAULT_EVENTS_PERIOD) { } 837c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian nsecs_t ns; 847c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian }; 857c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian DefaultKeyedVector<int32_t, SensorInfo> mSensorInfo; 867c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 87fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian public: 88fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SensorEventConnection(const sp<SensorService>& service); 897c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 90cf51001dbf28e9885fcacd4048902f1c75768fe9Mathias Agopian status_t sendEvents(sensors_event_t const* buffer, size_t count, 913560fb24b668675627934356f210d84d19bf4e56Mathias Agopian sensors_event_t* scratch = NULL); 92fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian bool hasSensor(int32_t handle) const; 93fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian bool hasAnySensor() const; 947c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian bool addSensor(int32_t handle); 957c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian bool removeSensor(int32_t handle); 967c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian status_t setEventRateLocked(int handle, nsecs_t ns); 977c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian nsecs_t getEventRateForSensor(int32_t handle) const { 987c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian return mSensorInfo.valueFor(handle).ns; 997c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian } 100fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian }; 101fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 102fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian class SensorRecord { 103fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SortedVector< wp<SensorEventConnection> > mConnections; 104fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian public: 105fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SensorRecord(const sp<SensorEventConnection>& connection); 1067c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian bool addConnection(const sp<SensorEventConnection>& connection); 107fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian bool removeConnection(const wp<SensorEventConnection>& connection); 108fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian size_t getNumConnections() const { return mConnections.size(); } 109fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian }; 110fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 111fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SortedVector< wp<SensorEventConnection> > getActiveConnections() const; 1125d2707214dfb97bd8dfcc6620be36841d3c82420Mathias Agopian String8 getSensorName(int handle) const; 1137c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian status_t recomputeEventsPeriodLocked(int32_t handle); 114fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 11594e8f6813f3fb2beaa9bcbfb1ad9b4ae2eb46949Mathias Agopian void recordLastValue(sensors_event_t const * buffer, size_t count); 11694e8f6813f3fb2beaa9bcbfb1ad9b4ae2eb46949Mathias Agopian 117fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian // constants 118fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian Vector<Sensor> mSensorList; 119fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian struct sensors_poll_device_t* mSensorDevice; 120fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian struct sensors_module_t* mSensorModule; 121fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian Permission mDump; 12250df2959e58fc7408f98d11d77c8428397dca445Mathias Agopian status_t mInitCheck; 123fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 124fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian // protected by mLock 125fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian mutable Mutex mLock; 126fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian DefaultKeyedVector<int, SensorRecord*> mActiveSensors; 127fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SortedVector< wp<SensorEventConnection> > mActiveConnections; 128fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 1293560fb24b668675627934356f210d84d19bf4e56Mathias Agopian // The size of this vector is constant, only the items are mutable 1303560fb24b668675627934356f210d84d19bf4e56Mathias Agopian KeyedVector<int32_t, sensors_event_t> mLastEventSeen; 1313560fb24b668675627934356f210d84d19bf4e56Mathias Agopian 132fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopianpublic: 133fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian static char const* getServiceName() { return "sensorservice"; } 134fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 135fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian void cleanupConnection(const wp<SensorEventConnection>& connection); 136fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian status_t enable(const sp<SensorEventConnection>& connection, int handle); 137fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian status_t disable(const sp<SensorEventConnection>& connection, int handle); 1387c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian status_t setEventRate(const sp<SensorEventConnection>& connection, int handle, nsecs_t ns); 139fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian}; 140fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 141fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian// --------------------------------------------------------------------------- 142fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian}; // namespace android 143fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 144fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#endif // ANDROID_SENSOR_SERVICE_H 145