| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_SENSOR_SERVICE_H |
| #define ANDROID_SENSOR_SERVICE_H |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <utils/Vector.h> |
| #include <utils/SortedVector.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/threads.h> |
| #include <utils/RefBase.h> |
| |
| #include <binder/BinderService.h> |
| #include <binder/Permission.h> |
| |
| #include <gui/Sensor.h> |
| #include <gui/SensorChannel.h> |
| #include <gui/ISensorServer.h> |
| #include <gui/ISensorEventConnection.h> |
| |
| // --------------------------------------------------------------------------- |
| |
| struct sensors_poll_device_t; |
| struct sensors_module_t; |
| |
| namespace android { |
| // --------------------------------------------------------------------------- |
| |
| class SensorService : |
| public BinderService<SensorService>, |
| public BnSensorServer, |
| protected Thread |
| { |
| friend class BinderService<SensorService>; |
| |
| static const nsecs_t MINIMUM_EVENTS_PERIOD = 10000000; // 10ms |
| static const nsecs_t DEFAULT_EVENTS_PERIOD = 200000000; // 200 ms |
| |
| SensorService(); |
| virtual ~SensorService(); |
| |
| virtual void onFirstRef(); |
| |
| // Thread interface |
| virtual bool threadLoop(); |
| |
| // ISensorServer interface |
| virtual Vector<Sensor> getSensorList(); |
| virtual sp<ISensorEventConnection> createSensorEventConnection(); |
| virtual status_t dump(int fd, const Vector<String16>& args); |
| |
| |
| class SensorEventConnection : public BnSensorEventConnection { |
| virtual ~SensorEventConnection(); |
| virtual void onFirstRef(); |
| virtual sp<SensorChannel> getSensorChannel() const; |
| virtual status_t enableDisable(int handle, bool enabled); |
| virtual status_t setEventRate(int handle, nsecs_t ns); |
| |
| sp<SensorService> const mService; |
| sp<SensorChannel> const mChannel; |
| |
| // protected by SensorService::mLock |
| //SortedVector<int32_t> mSensorList; |
| |
| struct SensorInfo { |
| SensorInfo() : ns(DEFAULT_EVENTS_PERIOD) { } |
| nsecs_t ns; |
| }; |
| DefaultKeyedVector<int32_t, SensorInfo> mSensorInfo; |
| |
| public: |
| SensorEventConnection(const sp<SensorService>& service); |
| |
| status_t sendEvents(sensors_event_t const* buffer, size_t count); |
| bool hasSensor(int32_t handle) const; |
| bool hasAnySensor() const; |
| bool addSensor(int32_t handle); |
| bool removeSensor(int32_t handle); |
| status_t setEventRateLocked(int handle, nsecs_t ns); |
| nsecs_t getEventRateForSensor(int32_t handle) const { |
| return mSensorInfo.valueFor(handle).ns; |
| } |
| }; |
| |
| class SensorRecord { |
| SortedVector< wp<SensorEventConnection> > mConnections; |
| public: |
| SensorRecord(const sp<SensorEventConnection>& connection); |
| bool addConnection(const sp<SensorEventConnection>& connection); |
| bool removeConnection(const wp<SensorEventConnection>& connection); |
| size_t getNumConnections() const { return mConnections.size(); } |
| }; |
| |
| SortedVector< wp<SensorEventConnection> > getActiveConnections() const; |
| String8 getSensorName(int handle) const; |
| status_t recomputeEventsPeriodLocked(int32_t handle); |
| |
| // constants |
| Vector<Sensor> mSensorList; |
| struct sensors_poll_device_t* mSensorDevice; |
| struct sensors_module_t* mSensorModule; |
| Permission mDump; |
| status_t mInitCheck; |
| |
| // protected by mLock |
| mutable Mutex mLock; |
| DefaultKeyedVector<int, SensorRecord*> mActiveSensors; |
| SortedVector< wp<SensorEventConnection> > mActiveConnections; |
| |
| public: |
| static char const* getServiceName() { return "sensorservice"; } |
| |
| void cleanupConnection(const wp<SensorEventConnection>& connection); |
| status_t enable(const sp<SensorEventConnection>& connection, int handle); |
| status_t disable(const sp<SensorEventConnection>& connection, int handle); |
| status_t setEventRate(const sp<SensorEventConnection>& connection, int handle, nsecs_t ns); |
| }; |
| |
| // --------------------------------------------------------------------------- |
| }; // namespace android |
| |
| #endif // ANDROID_SENSOR_SERVICE_H |