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_GRAVITY_SENSOR_H
18 #define ANDROID_GRAVITY_SENSOR_H
19 
20 #include <stdint.h>
21 #include <sys/types.h>
22 
23 #include <gui/Sensor.h>
24 
25 #include "SensorInterface.h"
26 
27 // ---------------------------------------------------------------------------
28 namespace android {
29 // ---------------------------------------------------------------------------
30 
31 class SensorDevice;
32 class SensorFusion;
33 
34 class GravitySensor : public SensorInterface {
35     SensorDevice& mSensorDevice;
36     SensorFusion& mSensorFusion;
37     Sensor mAccelerometer;
38 
39 public:
40     GravitySensor(sensor_t const* list, size_t count);
41     virtual bool process(sensors_event_t* outEvent,
42             const sensors_event_t& event);
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;
isVirtual()46     virtual bool isVirtual() const { return true; }
47 };
48 
49 // ---------------------------------------------------------------------------
50 }; // namespace android
51 
52 #endif // ANDROID_GRAVITY_SENSOR_H
53