1 /*
2  * Copyright (C) 2008 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_AKM_SENSOR_H
18 #define ANDROID_AKM_SENSOR_H
19 
20 #include <stdint.h>
21 #include <errno.h>
22 #include <sys/cdefs.h>
23 #include <sys/types.h>
24 
25 
26 #include "sensors.h"
27 #include "SensorBase.h"
28 #include "InputEventReader.h"
29 
30 /*****************************************************************************/
31 
32 struct input_event;
33 
34 class AkmSensor : public SensorBase {
35 public:
36             AkmSensor();
37     virtual ~AkmSensor();
38 
39     enum {
40 		Accelerometer = 0,
41         MagneticField,
42         Orientation,
43         numSensors
44     };
45 
46     virtual int readEvents(sensors_event_t* data, int count);
47     virtual int setDelay(int32_t handle, int64_t ns);
48     virtual int setEnable(int32_t handle, int enabled);
49     virtual int64_t getDelay(int32_t handle);
50     virtual int getEnable(int32_t handle);
51 	int setAccel(sensors_event_t* data);
52 
53 private:
54     int mEnabled[numSensors];
55 	int64_t mDelay[numSensors];
56     uint32_t mPendingMask;
57     InputEventCircularReader mInputReader;
58     sensors_event_t mPendingEvents[numSensors];
59 	char input_sysfs_path[PATH_MAX];
60 	int input_sysfs_path_len;
61 
62 	int handle2id(int32_t handle);
63     void processEvent(int code, int value);
64 };
65 
66 /*****************************************************************************/
67 
68 #endif  // ANDROID_AKM_SENSOR_H
69