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Mathias Agopianfc328812010-07-14 23:41:37 -07001/*
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>
Aravind Akella56ae4262014-07-10 16:01:10 -070027#include <utils/AndroidThreads.h>
Mathias Agopianfc328812010-07-14 23:41:37 -070028#include <utils/RefBase.h>
Aravind Akella56ae4262014-07-10 16:01:10 -070029#include <utils/Looper.h>
Aravind Akella4949c502015-02-11 15:54:35 -080030#include <utils/String8.h>
Mathias Agopianfc328812010-07-14 23:41:37 -070031
32#include <binder/BinderService.h>
Mathias Agopianfc328812010-07-14 23:41:37 -070033
34#include <gui/Sensor.h>
Mathias Agopianb3989272011-10-20 18:42:02 -070035#include <gui/BitTube.h>
Mathias Agopianfc328812010-07-14 23:41:37 -070036#include <gui/ISensorServer.h>
37#include <gui/ISensorEventConnection.h>
38
Mathias Agopianf001c922010-11-11 17:58:51 -080039#include "SensorInterface.h"
40
Bernhard Rosenkränzer72952ef2014-11-17 21:03:39 +010041#if __clang__
42// Clang warns about SensorEventConnection::dump hiding BBinder::dump
43// The cause isn't fixable without changing the API, so let's tell clang
44// this is indeed intentional.
45#pragma clang diagnostic ignored "-Woverloaded-virtual"
46#endif
47
Mathias Agopianfc328812010-07-14 23:41:37 -070048// ---------------------------------------------------------------------------
49
Mathias Agopiana1b7db92011-05-27 16:23:58 -070050#define DEBUG_CONNECTIONS false
Aravind Akella56ae4262014-07-10 16:01:10 -070051// Max size is 100 KB which is enough to accept a batch of about 1000 events.
52#define MAX_SOCKET_BUFFER_SIZE_BATCHED 100 * 1024
53// For older HALs which don't support batching, use a smaller socket buffer size.
Aravind Akella4c8b9512013-09-05 17:03:38 -070054#define SOCKET_BUFFER_SIZE_NON_BATCHED 4 * 1024
Mathias Agopiana1b7db92011-05-27 16:23:58 -070055
Mathias Agopianfc328812010-07-14 23:41:37 -070056struct sensors_poll_device_t;
57struct sensors_module_t;
58
59namespace android {
60// ---------------------------------------------------------------------------
61
62class SensorService :
63 public BinderService<SensorService>,
64 public BnSensorServer,
65 protected Thread
66{
Mathias Agopianb6df7d02013-05-09 14:53:35 -070067 friend class BinderService<SensorService>;
Mathias Agopianfc328812010-07-14 23:41:37 -070068
Aravind Akella4949c502015-02-11 15:54:35 -080069 enum Mode {
70 // The regular operating mode where any application can register/unregister/call flush on
71 // sensors.
72 NORMAL = 0,
Aravind Akellaa9e6cc32015-04-16 18:57:31 -070073 // This mode is only used for testing purposes. Not all HALs support this mode. In this
74 // mode, the HAL ignores the sensor data provided by physical sensors and accepts the data
75 // that is injected from the SensorService as if it were the real sensor data. This mode
76 // is primarily used for testing various algorithms like vendor provided SensorFusion,
77 // Step Counter and Step Detector etc. Typically in this mode, there will be a client
78 // (a SensorEventConnection) which will be injecting sensor data into the HAL. Normal apps
79 // can unregister and register for any sensor that supports injection. Registering to sensors
80 // that do not support injection will give an error.
81 // TODO(aakella) : Allow exactly one client to inject sensor data at a time.
82 DATA_INJECTION = 1,
Aravind Akella4949c502015-02-11 15:54:35 -080083 // This mode is used only for testing sensors. Each sensor can be tested in isolation with
84 // the required sampling_rate and maxReportLatency parameters without having to think about
85 // the data rates requested by other applications. End user devices are always expected to be
86 // in NORMAL mode. When this mode is first activated, all active sensors from all connections
87 // are disabled. Calling flush() will return an error. In this mode, only the requests from
88 // selected apps whose package names are whitelisted are allowed (typically CTS apps). Only
Aravind Akellaa9e6cc32015-04-16 18:57:31 -070089 // these apps can register/unregister/call flush() on sensors. If SensorService switches to
Aravind Akella4949c502015-02-11 15:54:35 -080090 // NORMAL mode again, all sensors that were previously registered to are activated with the
91 // corresponding paramaters if the application hasn't unregistered for sensors in the mean
92 // time.
93 // NOTE: Non whitelisted app whose sensors were previously deactivated may still receive
94 // events if a whitelisted app requests data from the same sensor.
Aravind Akellaa9e6cc32015-04-16 18:57:31 -070095 RESTRICTED = 2
96
97 // State Transitions supported.
98 // RESTRICTED <--- NORMAL ---> DATA_INJECTION
99 // ---> <---
Aravind Akella4949c502015-02-11 15:54:35 -0800100 };
101
Mathias Agopianb6df7d02013-05-09 14:53:35 -0700102 static const char* WAKE_LOCK_NAME;
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700103
Mathias Agopianb6df7d02013-05-09 14:53:35 -0700104 static char const* getServiceName() ANDROID_API { return "sensorservice"; }
105 SensorService() ANDROID_API;
Mathias Agopianfc328812010-07-14 23:41:37 -0700106 virtual ~SensorService();
107
108 virtual void onFirstRef();
109
110 // Thread interface
111 virtual bool threadLoop();
112
113 // ISensorServer interface
114 virtual Vector<Sensor> getSensorList();
Aravind Akellaa9e6cc32015-04-16 18:57:31 -0700115 virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName,
116 int requestedMode);
117 virtual status_t enableDataInjection(int enable);
Mathias Agopianfc328812010-07-14 23:41:37 -0700118 virtual status_t dump(int fd, const Vector<String16>& args);
119
Aravind Akella56ae4262014-07-10 16:01:10 -0700120 class SensorEventConnection : public BnSensorEventConnection, public LooperCallback {
121 friend class SensorService;
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700122 virtual ~SensorEventConnection();
123 virtual void onFirstRef();
Mathias Agopianb3989272011-10-20 18:42:02 -0700124 virtual sp<BitTube> getSensorChannel() const;
Aravind Akella724d91d2013-06-27 12:04:23 -0700125 virtual status_t enableDisable(int handle, bool enabled, nsecs_t samplingPeriodNs,
126 nsecs_t maxBatchReportLatencyNs, int reservedFlags);
127 virtual status_t setEventRate(int handle, nsecs_t samplingPeriodNs);
Aravind Akella701166d2013-10-08 14:59:26 -0700128 virtual status_t flush();
Aravind Akella4c8b9512013-09-05 17:03:38 -0700129 // Count the number of flush complete events which are about to be dropped in the buffer.
130 // Increment mPendingFlushEventsToSend in mSensorInfo. These flush complete events will be
131 // sent separately before the next batch of events.
Aravind Akella0ec20662014-09-14 17:29:48 -0700132 void countFlushCompleteEventsLocked(sensors_event_t const* scratch, int numEventsDropped);
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700133
Aravind Akella6c2664a2014-08-13 12:24:50 -0700134 // Check if there are any wake up events in the buffer. If yes, return the index of the
135 // first wake_up sensor event in the buffer else return -1. This wake_up sensor event will
136 // have the flag WAKE_UP_SENSOR_EVENT_NEEDS_ACK set. Exactly one event per packet will have
137 // the wake_up flag set. SOCK_SEQPACKET ensures that either the entire packet is read or
138 // dropped.
139 int findWakeUpSensorEventLocked(sensors_event_t const* scratch, int count);
140
141 // Send pending flush_complete events. There may have been flush_complete_events that are
142 // dropped which need to be sent separately before other events. On older HALs (1_0) this
143 // method emulates the behavior of flush().
144 void sendPendingFlushEventsLocked();
Aravind Akella56ae4262014-07-10 16:01:10 -0700145
146 // Writes events from mEventCache to the socket.
Aravind Akellab4373ac2014-10-29 17:55:20 -0700147 void writeToSocketFromCache();
Aravind Akella56ae4262014-07-10 16:01:10 -0700148
149 // Compute the approximate cache size from the FIFO sizes of various sensors registered for
150 // this connection. Wake up and non-wake up sensors have separate FIFOs but FIFO may be
151 // shared amongst wake-up sensors and non-wake up sensors.
152 int computeMaxCacheSizeLocked() const;
153
Aravind Akella6c2664a2014-08-13 12:24:50 -0700154 // When more sensors register, the maximum cache size desired may change. Compute max cache
155 // size, reallocate memory and copy over events from the older cache.
156 void reAllocateCacheLocked(sensors_event_t const* scratch, int count);
157
Aravind Akella56ae4262014-07-10 16:01:10 -0700158 // LooperCallback method. If there is data to read on this fd, it is an ack from the
159 // app that it has read events from a wake up sensor, decrement mWakeLockRefCount.
160 // If this fd is available for writing send the data from the cache.
161 virtual int handleEvent(int fd, int events, void* data);
Aravind Akella9a844cf2014-02-11 18:58:52 -0800162
Aravind Akella8a969552014-09-28 17:52:41 -0700163 // Increment mPendingFlushEventsToSend for the given sensor handle.
164 void incrementPendingFlushCount(int32_t handle);
165
166 // Add or remove the file descriptor associated with the BitTube to the looper. If mDead is
167 // set to true or there are no more sensors for this connection, the file descriptor is
168 // removed if it has been previously added to the Looper. Depending on the state of the
169 // connection FD may be added to the Looper. The flags to set are determined by the internal
170 // state of the connection. FDs are added to the looper when wake-up sensors are registered
171 // (to poll for acknowledgements) and when write fails on the socket when there are too many
Aravind Akella8a969552014-09-28 17:52:41 -0700172 // error and the other end hangs up or when this client unregisters for this connection.
173 void updateLooperRegistration(const sp<Looper>& looper);
174 void updateLooperRegistrationLocked(const sp<Looper>& looper);
175
Mathias Agopianfc328812010-07-14 23:41:37 -0700176 sp<SensorService> const mService;
Aravind Akella4c8b9512013-09-05 17:03:38 -0700177 sp<BitTube> mChannel;
Mathias Agopian5307d172012-09-18 17:02:43 -0700178 uid_t mUid;
Mathias Agopian71d7a5c2010-11-14 20:55:25 -0800179 mutable Mutex mConnectionLock;
Aravind Akella9a844cf2014-02-11 18:58:52 -0800180 // Number of events from wake up sensors which are still pending and haven't been delivered
181 // to the corresponding application. It is incremented by one unit for each write to the
182 // socket.
Aravind Akella8a969552014-09-28 17:52:41 -0700183 uint32_t mWakeLockRefCount;
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700184
Aravind Akella8a969552014-09-28 17:52:41 -0700185 // If this flag is set to true, it means that the file descriptor associated with the
186 // BitTube has been added to the Looper in SensorService. This flag is typically set when
187 // this connection has wake-up sensors associated with it or when write has failed on this
188 // connection and we're storing some events in the cache.
189 bool mHasLooperCallbacks;
190 // If there are any errors associated with the Looper this flag is set to true and
191 // mWakeLockRefCount is reset to zero. needsWakeLock method will always return false, if
192 // this flag is set.
193 bool mDead;
Aravind Akellaa9e6cc32015-04-16 18:57:31 -0700194
195 bool mDataInjectionMode;
Aravind Akella4c8b9512013-09-05 17:03:38 -0700196 struct FlushInfo {
197 // The number of flush complete events dropped for this sensor is stored here.
198 // They are sent separately before the next batch of events.
199 int mPendingFlushEventsToSend;
200 // Every activate is preceded by a flush. Only after the first flush complete is
201 // received, the events for the sensor are sent on that *connection*.
202 bool mFirstFlushPending;
Aravind Akella6c2664a2014-08-13 12:24:50 -0700203 FlushInfo() : mPendingFlushEventsToSend(0), mFirstFlushPending(false) {}
Aravind Akella4c8b9512013-09-05 17:03:38 -0700204 };
205 // protected by SensorService::mLock. Key for this vector is the sensor handle.
206 KeyedVector<int, FlushInfo> mSensorInfo;
Aravind Akella56ae4262014-07-10 16:01:10 -0700207 sensors_event_t *mEventCache;
208 int mCacheSize, mMaxCacheSize;
Aravind Akella4949c502015-02-11 15:54:35 -0800209 String8 mPackageName;
Aravind Akella56ae4262014-07-10 16:01:10 -0700210#if DEBUG_CONNECTIONS
211 int mEventsReceived, mEventsSent, mEventsSentFromCache;
Aravind Akellae74baf62014-08-21 12:28:35 -0700212 int mTotalAcksNeeded, mTotalAcksReceived;
Aravind Akella56ae4262014-07-10 16:01:10 -0700213#endif
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700214
Mathias Agopianfc328812010-07-14 23:41:37 -0700215 public:
Aravind Akellaa9e6cc32015-04-16 18:57:31 -0700216 SensorEventConnection(const sp<SensorService>& service, uid_t uid, String8 packageName,
217 bool isDataInjectionMode);
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700218
Aravind Akella0ec20662014-09-14 17:29:48 -0700219 status_t sendEvents(sensors_event_t const* buffer, size_t count,
Aravind Akella8493b792014-09-08 15:45:47 -0700220 sensors_event_t* scratch,
221 SensorEventConnection const * const * mapFlushEventsToConnections = NULL);
Mathias Agopianfc328812010-07-14 23:41:37 -0700222 bool hasSensor(int32_t handle) const;
223 bool hasAnySensor() const;
Aravind Akella8493b792014-09-08 15:45:47 -0700224 bool hasOneShotSensors() const;
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700225 bool addSensor(int32_t handle);
226 bool removeSensor(int32_t handle);
Aravind Akella4c8b9512013-09-05 17:03:38 -0700227 void setFirstFlushPending(int32_t handle, bool value);
Aravind Akella4c8b9512013-09-05 17:03:38 -0700228 void dump(String8& result);
Aravind Akella9a844cf2014-02-11 18:58:52 -0800229 bool needsWakeLock();
Aravind Akellab4373ac2014-10-29 17:55:20 -0700230 void resetWakeLockRefCount();
Aravind Akella4949c502015-02-11 15:54:35 -0800231 String8 getPackageName() const;
Mathias Agopian5307d172012-09-18 17:02:43 -0700232
233 uid_t getUid() const { return mUid; }
Mathias Agopianfc328812010-07-14 23:41:37 -0700234 };
235
236 class SensorRecord {
237 SortedVector< wp<SensorEventConnection> > mConnections;
Aravind Akella6c2664a2014-08-13 12:24:50 -0700238 // A queue of all flush() calls made on this sensor. Flush complete events will be
239 // sent in this order.
240 Vector< wp<SensorEventConnection> > mPendingFlushConnections;
Mathias Agopianfc328812010-07-14 23:41:37 -0700241 public:
242 SensorRecord(const sp<SensorEventConnection>& connection);
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700243 bool addConnection(const sp<SensorEventConnection>& connection);
Mathias Agopianfc328812010-07-14 23:41:37 -0700244 bool removeConnection(const wp<SensorEventConnection>& connection);
245 size_t getNumConnections() const { return mConnections.size(); }
Aravind Akella6c2664a2014-08-13 12:24:50 -0700246
247 void addPendingFlushConnection(const sp<SensorEventConnection>& connection);
248 void removeFirstPendingFlushConnection();
249 SensorEventConnection * getFirstPendingFlushConnection();
Aravind Akella4949c502015-02-11 15:54:35 -0800250 void clearAllPendingFlushConnections();
Mathias Agopianfc328812010-07-14 23:41:37 -0700251 };
252
Aravind Akella56ae4262014-07-10 16:01:10 -0700253 class SensorEventAckReceiver : public Thread {
254 sp<SensorService> const mService;
255 public:
256 virtual bool threadLoop();
257 SensorEventAckReceiver(const sp<SensorService>& service): mService(service) {}
258 };
259
Mathias Agopianf001c922010-11-11 17:58:51 -0800260 String8 getSensorName(int handle) const;
Aravind Akellab4099e72013-10-15 15:43:10 -0700261 bool isVirtualSensor(int handle) const;
Aravind Akella70018042014-04-07 22:52:37 +0000262 Sensor getSensorFromHandle(int handle) const;
Aravind Akella9a844cf2014-02-11 18:58:52 -0800263 bool isWakeUpSensor(int type) const;
Aravind Akella0ec20662014-09-14 17:29:48 -0700264 void recordLastValueLocked(sensors_event_t const* buffer, size_t count);
Mathias Agopianf001c922010-11-11 17:58:51 -0800265 static void sortEventBuffer(sensors_event_t* buffer, size_t count);
Mathias Agopian03193062013-05-10 19:32:39 -0700266 Sensor registerSensor(SensorInterface* sensor);
267 Sensor registerVirtualSensor(SensorInterface* sensor);
Mathias Agopianac9a96d2013-07-12 02:01:16 -0700268 status_t cleanupWithoutDisable(
269 const sp<SensorEventConnection>& connection, int handle);
270 status_t cleanupWithoutDisableLocked(
271 const sp<SensorEventConnection>& connection, int handle);
Aravind Akella9a844cf2014-02-11 18:58:52 -0800272 void cleanupAutoDisabledSensorLocked(const sp<SensorEventConnection>& connection,
Mathias Agopianb6df7d02013-05-09 14:53:35 -0700273 sensors_event_t const* buffer, const int count);
Aravind Akella70018042014-04-07 22:52:37 +0000274 static bool canAccessSensor(const Sensor& sensor);
275 static bool verifyCanAccessSensor(const Sensor& sensor, const char* operation);
Aravind Akellaa9e6cc32015-04-16 18:57:31 -0700276 static bool hasDataInjectionPermissions();
Aravind Akella9a844cf2014-02-11 18:58:52 -0800277 // SensorService acquires a partial wakelock for delivering events from wake up sensors. This
278 // method checks whether all the events from these wake up sensors have been delivered to the
279 // corresponding applications, if yes the wakelock is released.
280 void checkWakeLockState();
281 void checkWakeLockStateLocked();
Aravind Akellab4373ac2014-10-29 17:55:20 -0700282 bool isWakeLockAcquired();
Aravind Akella9a844cf2014-02-11 18:58:52 -0800283 bool isWakeUpSensorEvent(const sensors_event_t& event) const;
Aravind Akella56ae4262014-07-10 16:01:10 -0700284
Aravind Akella6c2664a2014-08-13 12:24:50 -0700285 SensorRecord * getSensorRecord(int handle);
286
Aravind Akella56ae4262014-07-10 16:01:10 -0700287 sp<Looper> getLooper() const;
288
Aravind Akellab4373ac2014-10-29 17:55:20 -0700289 // Reset mWakeLockRefCounts for all SensorEventConnections to zero. This may happen if
290 // SensorService did not receive any acknowledgements from apps which have registered for
291 // wake_up sensors.
292 void resetAllWakeLockRefCounts();
293
294 // Acquire or release wake_lock. If wake_lock is acquired, set the timeout in the looper to
295 // 5 seconds and wake the looper.
296 void setWakeLockAcquiredLocked(bool acquire);
297
298 // Send events from the event cache for this particular connection.
299 void sendEventsFromCache(const sp<SensorEventConnection>& connection);
300
301 // Promote all weak referecences in mActiveConnections vector to strong references and add them
302 // to the output vector.
303 void populateActiveConnections(SortedVector< sp<SensorEventConnection> >* activeConnections);
304
Aravind Akella4949c502015-02-11 15:54:35 -0800305 // If SensorService is operating in RESTRICTED mode, only select whitelisted packages are
306 // allowed to register for or call flush on sensors. Typically only cts test packages are
307 // allowed.
308 bool isWhiteListedPackage(const String8& packageName);
309
Aravind Akellaa9e6cc32015-04-16 18:57:31 -0700310 // Reset the state of SensorService to NORMAL mode.
311 status_t resetToNormalMode();
312 status_t resetToNormalModeLocked();
313
Mathias Agopianfc328812010-07-14 23:41:37 -0700314 // constants
315 Vector<Sensor> mSensorList;
Mathias Agopian33264862012-06-28 19:46:54 -0700316 Vector<Sensor> mUserSensorListDebug;
Mathias Agopian010e4222011-06-08 20:06:50 -0700317 Vector<Sensor> mUserSensorList;
Mathias Agopianf001c922010-11-11 17:58:51 -0800318 DefaultKeyedVector<int, SensorInterface*> mSensorMap;
319 Vector<SensorInterface *> mVirtualSensorList;
Mathias Agopian50df2952010-07-19 19:09:10 -0700320 status_t mInitCheck;
Aravind Akella5466c3d2014-08-22 16:11:10 -0700321 // Socket buffersize used to initialize BitTube. This size depends on whether batching is
322 // supported or not.
Aravind Akella8a969552014-09-28 17:52:41 -0700323 uint32_t mSocketBufferSize;
Aravind Akella56ae4262014-07-10 16:01:10 -0700324 sp<Looper> mLooper;
Aravind Akellab4373ac2014-10-29 17:55:20 -0700325 sp<SensorEventAckReceiver> mAckReceiver;
Mathias Agopianfc328812010-07-14 23:41:37 -0700326
327 // protected by mLock
328 mutable Mutex mLock;
Mathias Agopianfc328812010-07-14 23:41:37 -0700329 DefaultKeyedVector<int, SensorRecord*> mActiveSensors;
Mathias Agopianf001c922010-11-11 17:58:51 -0800330 DefaultKeyedVector<int, SensorInterface*> mActiveVirtualSensors;
Mathias Agopianfc328812010-07-14 23:41:37 -0700331 SortedVector< wp<SensorEventConnection> > mActiveConnections;
Aravind Akella9a844cf2014-02-11 18:58:52 -0800332 bool mWakeLockAcquired;
Aravind Akella8493b792014-09-08 15:45:47 -0700333 sensors_event_t *mSensorEventBuffer, *mSensorEventScratch;
334 SensorEventConnection const **mMapFlushEventsToConnections;
Aravind Akellaa9e6cc32015-04-16 18:57:31 -0700335 Mode mCurrentOperatingMode;
Aravind Akella8493b792014-09-08 15:45:47 -0700336
Mathias Agopian3560fb22010-07-22 21:24:39 -0700337 // The size of this vector is constant, only the items are mutable
338 KeyedVector<int32_t, sensors_event_t> mLastEventSeen;
339
Mathias Agopianfc328812010-07-14 23:41:37 -0700340public:
Mathias Agopiandb5b4bc2011-02-03 14:52:47 -0800341 void cleanupConnection(SensorEventConnection* connection);
Aravind Akella724d91d2013-06-27 12:04:23 -0700342 status_t enable(const sp<SensorEventConnection>& connection, int handle,
343 nsecs_t samplingPeriodNs, nsecs_t maxBatchReportLatencyNs, int reservedFlags);
Mathias Agopianfc328812010-07-14 23:41:37 -0700344 status_t disable(const sp<SensorEventConnection>& connection, int handle);
Mathias Agopian7c1c5312010-07-21 15:59:50 -0700345 status_t setEventRate(const sp<SensorEventConnection>& connection, int handle, nsecs_t ns);
Aravind Akella9e3adfc2014-09-03 15:48:05 -0700346 status_t flushSensor(const sp<SensorEventConnection>& connection);
Mathias Agopianfc328812010-07-14 23:41:37 -0700347};
348
349// ---------------------------------------------------------------------------
350}; // namespace android
351
352#endif // ANDROID_SENSOR_SERVICE_H