SensorService.h revision a9e6cc387072e25706a6d847a97b02a6f25a918b
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> 2756ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella#include <utils/AndroidThreads.h> 28fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <utils/RefBase.h> 2956ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella#include <utils/Looper.h> 304949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella#include <utils/String8.h> 31fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 32fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <binder/BinderService.h> 33fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 34fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <gui/Sensor.h> 35b3989276d17f2b083bec67b695d1078fb86c6c53Mathias Agopian#include <gui/BitTube.h> 36fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <gui/ISensorServer.h> 37fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#include <gui/ISensorEventConnection.h> 38fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 39f001c92436b4a66eb7687286325ced7f10c9f917Mathias Agopian#include "SensorInterface.h" 40f001c92436b4a66eb7687286325ced7f10c9f917Mathias Agopian 4172952efe5ce8ee10e3c591cc6d2a3475b7b91690Bernhard Rosenkränzer#if __clang__ 4272952efe5ce8ee10e3c591cc6d2a3475b7b91690Bernhard Rosenkränzer// Clang warns about SensorEventConnection::dump hiding BBinder::dump 4372952efe5ce8ee10e3c591cc6d2a3475b7b91690Bernhard Rosenkränzer// The cause isn't fixable without changing the API, so let's tell clang 4472952efe5ce8ee10e3c591cc6d2a3475b7b91690Bernhard Rosenkränzer// this is indeed intentional. 4572952efe5ce8ee10e3c591cc6d2a3475b7b91690Bernhard Rosenkränzer#pragma clang diagnostic ignored "-Woverloaded-virtual" 4672952efe5ce8ee10e3c591cc6d2a3475b7b91690Bernhard Rosenkränzer#endif 4772952efe5ce8ee10e3c591cc6d2a3475b7b91690Bernhard Rosenkränzer 48fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian// --------------------------------------------------------------------------- 49fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 50a1b7db95b6ccf5be9d8dfaac1b8f45494813edc0Mathias Agopian#define DEBUG_CONNECTIONS false 5156ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella// Max size is 100 KB which is enough to accept a batch of about 1000 events. 5256ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella#define MAX_SOCKET_BUFFER_SIZE_BATCHED 100 * 1024 5356ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella// For older HALs which don't support batching, use a smaller socket buffer size. 544c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella#define SOCKET_BUFFER_SIZE_NON_BATCHED 4 * 1024 55a1b7db95b6ccf5be9d8dfaac1b8f45494813edc0Mathias Agopian 56fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopianstruct sensors_poll_device_t; 57fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopianstruct sensors_module_t; 58fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 59fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopiannamespace android { 60fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian// --------------------------------------------------------------------------- 61fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 62fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopianclass SensorService : 63fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian public BinderService<SensorService>, 64fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian public BnSensorServer, 65fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian protected Thread 66fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian{ 67b6df7d0e4c2117ca476662bd52b6745b3d8a305fMathias Agopian friend class BinderService<SensorService>; 68fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 694949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella enum Mode { 704949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // The regular operating mode where any application can register/unregister/call flush on 714949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // sensors. 724949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella NORMAL = 0, 73a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // This mode is only used for testing purposes. Not all HALs support this mode. In this 74a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // mode, the HAL ignores the sensor data provided by physical sensors and accepts the data 75a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // that is injected from the SensorService as if it were the real sensor data. This mode 76a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // is primarily used for testing various algorithms like vendor provided SensorFusion, 77a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // Step Counter and Step Detector etc. Typically in this mode, there will be a client 78a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // (a SensorEventConnection) which will be injecting sensor data into the HAL. Normal apps 79a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // can unregister and register for any sensor that supports injection. Registering to sensors 80a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // that do not support injection will give an error. 81a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // TODO(aakella) : Allow exactly one client to inject sensor data at a time. 82a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella DATA_INJECTION = 1, 834949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // This mode is used only for testing sensors. Each sensor can be tested in isolation with 844949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // the required sampling_rate and maxReportLatency parameters without having to think about 854949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // the data rates requested by other applications. End user devices are always expected to be 864949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // in NORMAL mode. When this mode is first activated, all active sensors from all connections 874949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // are disabled. Calling flush() will return an error. In this mode, only the requests from 884949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // selected apps whose package names are whitelisted are allowed (typically CTS apps). Only 89a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // these apps can register/unregister/call flush() on sensors. If SensorService switches to 904949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // NORMAL mode again, all sensors that were previously registered to are activated with the 914949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // corresponding paramaters if the application hasn't unregistered for sensors in the mean 924949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // time. 934949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // NOTE: Non whitelisted app whose sensors were previously deactivated may still receive 944949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // events if a whitelisted app requests data from the same sensor. 95a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella RESTRICTED = 2 96a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella 97a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // State Transitions supported. 98a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // RESTRICTED <--- NORMAL ---> DATA_INJECTION 99a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // ---> <--- 1004949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella }; 1014949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella 102b6df7d0e4c2117ca476662bd52b6745b3d8a305fMathias Agopian static const char* WAKE_LOCK_NAME; 1037c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 104b6df7d0e4c2117ca476662bd52b6745b3d8a305fMathias Agopian static char const* getServiceName() ANDROID_API { return "sensorservice"; } 105b6df7d0e4c2117ca476662bd52b6745b3d8a305fMathias Agopian SensorService() ANDROID_API; 106fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual ~SensorService(); 107fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 108fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual void onFirstRef(); 109fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 110fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian // Thread interface 111fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual bool threadLoop(); 112fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 113fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian // ISensorServer interface 114fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual Vector<Sensor> getSensorList(); 115a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName, 116a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella int requestedMode); 117a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella virtual status_t enableDataInjection(int enable); 118fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian virtual status_t dump(int fd, const Vector<String16>& args); 119fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 12056ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella class SensorEventConnection : public BnSensorEventConnection, public LooperCallback { 12156ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella friend class SensorService; 1227c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian virtual ~SensorEventConnection(); 1237c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian virtual void onFirstRef(); 124b3989276d17f2b083bec67b695d1078fb86c6c53Mathias Agopian virtual sp<BitTube> getSensorChannel() const; 125724d91d778e71c8186399f4955de14b54812b3edAravind Akella virtual status_t enableDisable(int handle, bool enabled, nsecs_t samplingPeriodNs, 126724d91d778e71c8186399f4955de14b54812b3edAravind Akella nsecs_t maxBatchReportLatencyNs, int reservedFlags); 127724d91d778e71c8186399f4955de14b54812b3edAravind Akella virtual status_t setEventRate(int handle, nsecs_t samplingPeriodNs); 128701166d9f60a6e1149ff568aec0e03f3f3925292Aravind Akella virtual status_t flush(); 1294c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella // Count the number of flush complete events which are about to be dropped in the buffer. 1304c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella // Increment mPendingFlushEventsToSend in mSensorInfo. These flush complete events will be 1314c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella // sent separately before the next batch of events. 1320ec2066e4774b851c66176b99b0a5aa5abe6ad00Aravind Akella void countFlushCompleteEventsLocked(sensors_event_t const* scratch, int numEventsDropped); 1337c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 1346c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // Check if there are any wake up events in the buffer. If yes, return the index of the 1356c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // first wake_up sensor event in the buffer else return -1. This wake_up sensor event will 1366c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // have the flag WAKE_UP_SENSOR_EVENT_NEEDS_ACK set. Exactly one event per packet will have 1376c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // the wake_up flag set. SOCK_SEQPACKET ensures that either the entire packet is read or 1386c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // dropped. 1396c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella int findWakeUpSensorEventLocked(sensors_event_t const* scratch, int count); 1406c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella 1416c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // Send pending flush_complete events. There may have been flush_complete_events that are 1426c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // dropped which need to be sent separately before other events. On older HALs (1_0) this 1436c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // method emulates the behavior of flush(). 1446c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella void sendPendingFlushEventsLocked(); 14556ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella 14656ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella // Writes events from mEventCache to the socket. 147b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella void writeToSocketFromCache(); 14856ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella 14956ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella // Compute the approximate cache size from the FIFO sizes of various sensors registered for 15056ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella // this connection. Wake up and non-wake up sensors have separate FIFOs but FIFO may be 15156ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella // shared amongst wake-up sensors and non-wake up sensors. 15256ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella int computeMaxCacheSizeLocked() const; 15356ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella 1546c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // When more sensors register, the maximum cache size desired may change. Compute max cache 1556c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // size, reallocate memory and copy over events from the older cache. 1566c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella void reAllocateCacheLocked(sensors_event_t const* scratch, int count); 1576c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella 15856ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella // LooperCallback method. If there is data to read on this fd, it is an ack from the 15956ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella // app that it has read events from a wake up sensor, decrement mWakeLockRefCount. 16056ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella // If this fd is available for writing send the data from the cache. 16156ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella virtual int handleEvent(int fd, int events, void* data); 1629a844cf78f09953145200b4074d47589257a408cAravind Akella 1638a96955c8e14db40b16164236830fc9506a00872Aravind Akella // Increment mPendingFlushEventsToSend for the given sensor handle. 1648a96955c8e14db40b16164236830fc9506a00872Aravind Akella void incrementPendingFlushCount(int32_t handle); 1658a96955c8e14db40b16164236830fc9506a00872Aravind Akella 1668a96955c8e14db40b16164236830fc9506a00872Aravind Akella // Add or remove the file descriptor associated with the BitTube to the looper. If mDead is 1678a96955c8e14db40b16164236830fc9506a00872Aravind Akella // set to true or there are no more sensors for this connection, the file descriptor is 1688a96955c8e14db40b16164236830fc9506a00872Aravind Akella // removed if it has been previously added to the Looper. Depending on the state of the 1698a96955c8e14db40b16164236830fc9506a00872Aravind Akella // connection FD may be added to the Looper. The flags to set are determined by the internal 1708a96955c8e14db40b16164236830fc9506a00872Aravind Akella // state of the connection. FDs are added to the looper when wake-up sensors are registered 1718a96955c8e14db40b16164236830fc9506a00872Aravind Akella // (to poll for acknowledgements) and when write fails on the socket when there are too many 1728a96955c8e14db40b16164236830fc9506a00872Aravind Akella // error and the other end hangs up or when this client unregisters for this connection. 1738a96955c8e14db40b16164236830fc9506a00872Aravind Akella void updateLooperRegistration(const sp<Looper>& looper); 1748a96955c8e14db40b16164236830fc9506a00872Aravind Akella void updateLooperRegistrationLocked(const sp<Looper>& looper); 1758a96955c8e14db40b16164236830fc9506a00872Aravind Akella 176fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian sp<SensorService> const mService; 1774c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella sp<BitTube> mChannel; 1785307d17fe33fc26eeeacd6339a9fbfe96cf56873Mathias Agopian uid_t mUid; 17971d7a5c289c6ef6b5fc86dd4784a075ca6470e38Mathias Agopian mutable Mutex mConnectionLock; 1809a844cf78f09953145200b4074d47589257a408cAravind Akella // Number of events from wake up sensors which are still pending and haven't been delivered 1819a844cf78f09953145200b4074d47589257a408cAravind Akella // to the corresponding application. It is incremented by one unit for each write to the 1829a844cf78f09953145200b4074d47589257a408cAravind Akella // socket. 1838a96955c8e14db40b16164236830fc9506a00872Aravind Akella uint32_t mWakeLockRefCount; 1848a96955c8e14db40b16164236830fc9506a00872Aravind Akella 1858a96955c8e14db40b16164236830fc9506a00872Aravind Akella // If this flag is set to true, it means that the file descriptor associated with the 1868a96955c8e14db40b16164236830fc9506a00872Aravind Akella // BitTube has been added to the Looper in SensorService. This flag is typically set when 1878a96955c8e14db40b16164236830fc9506a00872Aravind Akella // this connection has wake-up sensors associated with it or when write has failed on this 1888a96955c8e14db40b16164236830fc9506a00872Aravind Akella // connection and we're storing some events in the cache. 1898a96955c8e14db40b16164236830fc9506a00872Aravind Akella bool mHasLooperCallbacks; 1908a96955c8e14db40b16164236830fc9506a00872Aravind Akella // If there are any errors associated with the Looper this flag is set to true and 1918a96955c8e14db40b16164236830fc9506a00872Aravind Akella // mWakeLockRefCount is reset to zero. needsWakeLock method will always return false, if 1928a96955c8e14db40b16164236830fc9506a00872Aravind Akella // this flag is set. 1938a96955c8e14db40b16164236830fc9506a00872Aravind Akella bool mDead; 194a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella 195a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella bool mDataInjectionMode; 1964c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella struct FlushInfo { 1974c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella // The number of flush complete events dropped for this sensor is stored here. 1984c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella // They are sent separately before the next batch of events. 1994c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella int mPendingFlushEventsToSend; 2004c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella // Every activate is preceded by a flush. Only after the first flush complete is 2014c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella // received, the events for the sensor are sent on that *connection*. 2024c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella bool mFirstFlushPending; 2036c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella FlushInfo() : mPendingFlushEventsToSend(0), mFirstFlushPending(false) {} 2044c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella }; 2054c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella // protected by SensorService::mLock. Key for this vector is the sensor handle. 2064c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella KeyedVector<int, FlushInfo> mSensorInfo; 20756ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella sensors_event_t *mEventCache; 20856ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella int mCacheSize, mMaxCacheSize; 2094949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella String8 mPackageName; 21056ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella#if DEBUG_CONNECTIONS 21156ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella int mEventsReceived, mEventsSent, mEventsSentFromCache; 212e74baf6ca7d57375f38540b6b7ac5e4af019951bAravind Akella int mTotalAcksNeeded, mTotalAcksReceived; 21356ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella#endif 2147c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 215fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian public: 216a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella SensorEventConnection(const sp<SensorService>& service, uid_t uid, String8 packageName, 217a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella bool isDataInjectionMode); 2187c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian 2190ec2066e4774b851c66176b99b0a5aa5abe6ad00Aravind Akella status_t sendEvents(sensors_event_t const* buffer, size_t count, 2208493b79e1cff92450076ca7450c4bf4e434a6816Aravind Akella sensors_event_t* scratch, 2218493b79e1cff92450076ca7450c4bf4e434a6816Aravind Akella SensorEventConnection const * const * mapFlushEventsToConnections = NULL); 222fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian bool hasSensor(int32_t handle) const; 223fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian bool hasAnySensor() const; 2248493b79e1cff92450076ca7450c4bf4e434a6816Aravind Akella bool hasOneShotSensors() const; 2257c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian bool addSensor(int32_t handle); 2267c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian bool removeSensor(int32_t handle); 2274c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella void setFirstFlushPending(int32_t handle, bool value); 2284c8b951f8d6a121e758bd3905fa8987c77863790Aravind Akella void dump(String8& result); 2299a844cf78f09953145200b4074d47589257a408cAravind Akella bool needsWakeLock(); 230b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella void resetWakeLockRefCount(); 2314949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella String8 getPackageName() const; 2325307d17fe33fc26eeeacd6339a9fbfe96cf56873Mathias Agopian 2335307d17fe33fc26eeeacd6339a9fbfe96cf56873Mathias Agopian uid_t getUid() const { return mUid; } 234fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian }; 235fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 236fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian class SensorRecord { 237fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SortedVector< wp<SensorEventConnection> > mConnections; 2386c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // A queue of all flush() calls made on this sensor. Flush complete events will be 2396c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella // sent in this order. 2406c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella Vector< wp<SensorEventConnection> > mPendingFlushConnections; 241fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian public: 242fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SensorRecord(const sp<SensorEventConnection>& connection); 2437c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian bool addConnection(const sp<SensorEventConnection>& connection); 244fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian bool removeConnection(const wp<SensorEventConnection>& connection); 245fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian size_t getNumConnections() const { return mConnections.size(); } 2466c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella 2476c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella void addPendingFlushConnection(const sp<SensorEventConnection>& connection); 2486c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella void removeFirstPendingFlushConnection(); 2496c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella SensorEventConnection * getFirstPendingFlushConnection(); 2504949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella void clearAllPendingFlushConnections(); 251fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian }; 252fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 25356ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella class SensorEventAckReceiver : public Thread { 25456ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella sp<SensorService> const mService; 25556ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella public: 25656ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella virtual bool threadLoop(); 25756ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella SensorEventAckReceiver(const sp<SensorService>& service): mService(service) {} 25856ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella }; 25956ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella 260f001c92436b4a66eb7687286325ced7f10c9f917Mathias Agopian String8 getSensorName(int handle) const; 261b4099e77ec2bf8e9d4259ff30f0cb1d621deed91Aravind Akella bool isVirtualSensor(int handle) const; 262700180487ffec09d9df1657b018a7caadac24b75Aravind Akella Sensor getSensorFromHandle(int handle) const; 2639a844cf78f09953145200b4074d47589257a408cAravind Akella bool isWakeUpSensor(int type) const; 2640ec2066e4774b851c66176b99b0a5aa5abe6ad00Aravind Akella void recordLastValueLocked(sensors_event_t const* buffer, size_t count); 265f001c92436b4a66eb7687286325ced7f10c9f917Mathias Agopian static void sortEventBuffer(sensors_event_t* buffer, size_t count); 2660319306670b0344da99efa606b6f172dde575a39Mathias Agopian Sensor registerSensor(SensorInterface* sensor); 2670319306670b0344da99efa606b6f172dde575a39Mathias Agopian Sensor registerVirtualSensor(SensorInterface* sensor); 268ac9a96da65f6eae4513654adaad8a457d1c1575cMathias Agopian status_t cleanupWithoutDisable( 269ac9a96da65f6eae4513654adaad8a457d1c1575cMathias Agopian const sp<SensorEventConnection>& connection, int handle); 270ac9a96da65f6eae4513654adaad8a457d1c1575cMathias Agopian status_t cleanupWithoutDisableLocked( 271ac9a96da65f6eae4513654adaad8a457d1c1575cMathias Agopian const sp<SensorEventConnection>& connection, int handle); 2729a844cf78f09953145200b4074d47589257a408cAravind Akella void cleanupAutoDisabledSensorLocked(const sp<SensorEventConnection>& connection, 273b6df7d0e4c2117ca476662bd52b6745b3d8a305fMathias Agopian sensors_event_t const* buffer, const int count); 274700180487ffec09d9df1657b018a7caadac24b75Aravind Akella static bool canAccessSensor(const Sensor& sensor); 275700180487ffec09d9df1657b018a7caadac24b75Aravind Akella static bool verifyCanAccessSensor(const Sensor& sensor, const char* operation); 276a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella static bool hasDataInjectionPermissions(); 2779a844cf78f09953145200b4074d47589257a408cAravind Akella // SensorService acquires a partial wakelock for delivering events from wake up sensors. This 2789a844cf78f09953145200b4074d47589257a408cAravind Akella // method checks whether all the events from these wake up sensors have been delivered to the 2799a844cf78f09953145200b4074d47589257a408cAravind Akella // corresponding applications, if yes the wakelock is released. 2809a844cf78f09953145200b4074d47589257a408cAravind Akella void checkWakeLockState(); 2819a844cf78f09953145200b4074d47589257a408cAravind Akella void checkWakeLockStateLocked(); 282b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella bool isWakeLockAcquired(); 2839a844cf78f09953145200b4074d47589257a408cAravind Akella bool isWakeUpSensorEvent(const sensors_event_t& event) const; 28456ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella 2856c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella SensorRecord * getSensorRecord(int handle); 2866c2664ae34fd582bc174d3c83e2b18e895ca2496Aravind Akella 28756ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella sp<Looper> getLooper() const; 28856ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella 289b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella // Reset mWakeLockRefCounts for all SensorEventConnections to zero. This may happen if 290b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella // SensorService did not receive any acknowledgements from apps which have registered for 291b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella // wake_up sensors. 292b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella void resetAllWakeLockRefCounts(); 293b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella 294b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella // Acquire or release wake_lock. If wake_lock is acquired, set the timeout in the looper to 295b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella // 5 seconds and wake the looper. 296b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella void setWakeLockAcquiredLocked(bool acquire); 297b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella 298b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella // Send events from the event cache for this particular connection. 299b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella void sendEventsFromCache(const sp<SensorEventConnection>& connection); 300b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella 301b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella // Promote all weak referecences in mActiveConnections vector to strong references and add them 302b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella // to the output vector. 303b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella void populateActiveConnections(SortedVector< sp<SensorEventConnection> >* activeConnections); 304b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella 3054949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // If SensorService is operating in RESTRICTED mode, only select whitelisted packages are 3064949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // allowed to register for or call flush on sensors. Typically only cts test packages are 3074949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella // allowed. 3084949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella bool isWhiteListedPackage(const String8& packageName); 3094949c50372de4c7fdb57de1dc0c1f5bb3ac463ebAravind Akella 310a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella // Reset the state of SensorService to NORMAL mode. 311a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella status_t resetToNormalMode(); 312a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella status_t resetToNormalModeLocked(); 313a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella 314fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian // constants 315fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian Vector<Sensor> mSensorList; 31633264868ba0aaccb9d4b5e5a067a79a43633f6ecMathias Agopian Vector<Sensor> mUserSensorListDebug; 317010e42230135815907e76e5d7e5f30edf9e1799dMathias Agopian Vector<Sensor> mUserSensorList; 318f001c92436b4a66eb7687286325ced7f10c9f917Mathias Agopian DefaultKeyedVector<int, SensorInterface*> mSensorMap; 319f001c92436b4a66eb7687286325ced7f10c9f917Mathias Agopian Vector<SensorInterface *> mVirtualSensorList; 32050df2959e58fc7408f98d11d77c8428397dca445Mathias Agopian status_t mInitCheck; 3215466c3d20d03d4ae4b0fd0e0a93175091e3b0bb2Aravind Akella // Socket buffersize used to initialize BitTube. This size depends on whether batching is 3225466c3d20d03d4ae4b0fd0e0a93175091e3b0bb2Aravind Akella // supported or not. 3238a96955c8e14db40b16164236830fc9506a00872Aravind Akella uint32_t mSocketBufferSize; 32456ae42613c91f6a6fb0dc3f626daa24666fd18c2Aravind Akella sp<Looper> mLooper; 325b4373ac9f53e3a6edee915715101d535e1a851a1Aravind Akella sp<SensorEventAckReceiver> mAckReceiver; 326fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 327fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian // protected by mLock 328fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian mutable Mutex mLock; 329fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian DefaultKeyedVector<int, SensorRecord*> mActiveSensors; 330f001c92436b4a66eb7687286325ced7f10c9f917Mathias Agopian DefaultKeyedVector<int, SensorInterface*> mActiveVirtualSensors; 331fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian SortedVector< wp<SensorEventConnection> > mActiveConnections; 3329a844cf78f09953145200b4074d47589257a408cAravind Akella bool mWakeLockAcquired; 3338493b79e1cff92450076ca7450c4bf4e434a6816Aravind Akella sensors_event_t *mSensorEventBuffer, *mSensorEventScratch; 3348493b79e1cff92450076ca7450c4bf4e434a6816Aravind Akella SensorEventConnection const **mMapFlushEventsToConnections; 335a9e6cc387072e25706a6d847a97b02a6f25a918bAravind Akella Mode mCurrentOperatingMode; 3368493b79e1cff92450076ca7450c4bf4e434a6816Aravind Akella 3373560fb24b668675627934356f210d84d19bf4e56Mathias Agopian // The size of this vector is constant, only the items are mutable 3383560fb24b668675627934356f210d84d19bf4e56Mathias Agopian KeyedVector<int32_t, sensors_event_t> mLastEventSeen; 3393560fb24b668675627934356f210d84d19bf4e56Mathias Agopian 340fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopianpublic: 341db5b4bce9e65ec9c2c7762b601297e4abadbc22aMathias Agopian void cleanupConnection(SensorEventConnection* connection); 342724d91d778e71c8186399f4955de14b54812b3edAravind Akella status_t enable(const sp<SensorEventConnection>& connection, int handle, 343724d91d778e71c8186399f4955de14b54812b3edAravind Akella nsecs_t samplingPeriodNs, nsecs_t maxBatchReportLatencyNs, int reservedFlags); 344fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian status_t disable(const sp<SensorEventConnection>& connection, int handle); 3457c1c531872a95051cb11ec829e3daf890d9bb58aMathias Agopian status_t setEventRate(const sp<SensorEventConnection>& connection, int handle, nsecs_t ns); 3469e3adfcebf28c5c76085108dffe98c74df56857dAravind Akella status_t flushSensor(const sp<SensorEventConnection>& connection); 347fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian}; 348fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 349fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian// --------------------------------------------------------------------------- 350fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian}; // namespace android 351fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian 352fc32881fcc68640d008c7515cdd1bcd866f72cd5Mathias Agopian#endif // ANDROID_SENSOR_SERVICE_H 353