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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_LINEAR_ACCELERATION_SENSOR_H
     18 #define ANDROID_LINEAR_ACCELERATION_SENSOR_H
     19 
     20 #include <stdint.h>
     21 #include <sys/types.h>
     22 
     23 #include <gui/Sensor.h>
     24 
     25 #include "SensorInterface.h"
     26 #include "GravitySensor.h"
     27 
     28 // ---------------------------------------------------------------------------
     29 namespace android {
     30 // ---------------------------------------------------------------------------
     31 
     32 class SensorDevice;
     33 class SensorFusion;
     34 
     35 class LinearAccelerationSensor : public SensorInterface {
     36     SensorDevice& mSensorDevice;
     37     GravitySensor mGravitySensor;
     38 
     39     virtual bool process(sensors_event_t* outEvent,
     40             const sensors_event_t& event);
     41 public:
     42     LinearAccelerationSensor(sensor_t const* list, size_t count);
     43     virtual status_t activate(void* ident, bool enabled);
     44     virtual status_t setDelay(void* ident, int handle, int64_t ns);
     45     virtual Sensor getSensor() const;
     46     virtual bool isVirtual() const { return true; }
     47 };
     48 
     49 // ---------------------------------------------------------------------------
     50 }; // namespace android
     51 
     52 #endif // ANDROID_LINEAR_ACCELERATION_SENSOR_H
     53