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_ROTATION_VECTOR_SENSOR_H
18 #define ANDROID_ROTATION_VECTOR_SENSOR_H
19 
20 #include <stdint.h>
21 #include <sys/types.h>
22 
23 #include <gui/Sensor.h>
24 
25 #include "SensorDevice.h"
26 #include "SensorInterface.h"
27 
28 #include "Fusion.h"
29 #include "SensorFusion.h"
30 
31 // ---------------------------------------------------------------------------
32 namespace android {
33 // ---------------------------------------------------------------------------
34 
35 class RotationVectorSensor : public VirtualSensor {
36 public:
37     RotationVectorSensor(int mode = FUSION_9AXIS);
38     virtual bool process(sensors_event_t* outEvent, const sensors_event_t& event) override;
39     virtual status_t activate(void* ident, bool enabled) override;
40     virtual status_t setDelay(void* ident, int handle, int64_t ns) override;
41 
42 protected:
43     const int mMode;
44     int getSensorType() const;
45     const char* getSensorName() const ;
46     int getSensorToken() const ;
47 };
48 
49 class GameRotationVectorSensor : public RotationVectorSensor {
50 public:
GameRotationVectorSensor()51     GameRotationVectorSensor() : RotationVectorSensor(FUSION_NOMAG) {}
52 };
53 
54 class GeoMagRotationVectorSensor : public RotationVectorSensor {
55 public:
GeoMagRotationVectorSensor()56     GeoMagRotationVectorSensor() : RotationVectorSensor(FUSION_NOGYRO) {}
57 };
58 
59 class GyroDriftSensor : public VirtualSensor {
60 public:
61     GyroDriftSensor();
62     virtual bool process(sensors_event_t* outEvent, const sensors_event_t& event) override;
63     virtual status_t activate(void* ident, bool enabled) override;
64     virtual status_t setDelay(void* ident, int handle, int64_t ns) override;
65 };
66 
67 // ---------------------------------------------------------------------------
68 }; // namespace android
69 
70 #endif // ANDROID_ROTATION_VECTOR_SENSOR_H
71