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      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_GUI_SENSOR_MANAGER_H
     18 #define ANDROID_GUI_SENSOR_MANAGER_H
     19 
     20 #include <map>
     21 
     22 #include <stdint.h>
     23 #include <sys/types.h>
     24 
     25 #include <binder/IBinder.h>
     26 #include <binder/IPCThreadState.h>
     27 #include <binder/IServiceManager.h>
     28 
     29 #include <utils/Errors.h>
     30 #include <utils/RefBase.h>
     31 #include <utils/Singleton.h>
     32 #include <utils/Vector.h>
     33 #include <utils/String8.h>
     34 
     35 #include <gui/SensorEventQueue.h>
     36 
     37 // ----------------------------------------------------------------------------
     38 // Concrete types for the NDK
     39 struct ASensorManager { };
     40 
     41 // ----------------------------------------------------------------------------
     42 namespace android {
     43 // ----------------------------------------------------------------------------
     44 
     45 class ISensorServer;
     46 class Sensor;
     47 class SensorEventQueue;
     48 // ----------------------------------------------------------------------------
     49 
     50 class SensorManager :
     51     public ASensorManager
     52 {
     53 public:
     54     static SensorManager& getInstanceForPackage(const String16& packageName);
     55     ~SensorManager();
     56 
     57     ssize_t getSensorList(Sensor const* const** list);
     58     ssize_t getDynamicSensorList(Vector<Sensor>& list);
     59     Sensor const* getDefaultSensor(int type);
     60     sp<SensorEventQueue> createEventQueue(String8 packageName = String8(""), int mode = 0);
     61     bool isDataInjectionEnabled();
     62 
     63 private:
     64     // DeathRecipient interface
     65     void sensorManagerDied();
     66 
     67     SensorManager(const String16& opPackageName);
     68     status_t assertStateLocked();
     69 
     70 private:
     71     static Mutex sLock;
     72     static std::map<String16, SensorManager*> sPackageInstances;
     73 
     74     Mutex mLock;
     75     sp<ISensorServer> mSensorServer;
     76     Sensor const** mSensorList;
     77     Vector<Sensor> mSensors;
     78     sp<IBinder::DeathRecipient> mDeathObserver;
     79     const String16 mOpPackageName;
     80 };
     81 
     82 // ----------------------------------------------------------------------------
     83 }; // namespace android
     84 
     85 #endif // ANDROID_GUI_SENSOR_MANAGER_H
     86