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1 /*
2  * Copyright (C) 2011 Samsung
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_PROXIMITY_SENSOR_H
18 #define ANDROID_PROXIMITY_SENSOR_H
19 
20 #include <stdint.h>
21 #include <errno.h>
22 #include <sys/cdefs.h>
23 #include <sys/types.h>
24 
25 #include "sensors.h"
26 #include "SamsungSensorBase.h"
27 #include "InputEventReader.h"
28 
29 /* the GP2A is a binary proximity sensor that triggers around 5 cm on
30  * this hardware */
31 #define PROXIMITY_THRESHOLD_GP2A  5.0f
32 
33 /*****************************************************************************/
34 
35 struct input_event;
36 
37 class ProximitySensor:public SamsungSensorBase {
38 
39     virtual int handleEnable(int en);
40     virtual bool handleEvent(input_event const * event);
41 
42     float indexToValue(size_t index) const;
43 public:
44     ProximitySensor();
45     virtual int setDelay(int32_t handle, int64_t ns);
46     virtual bool hasPendingEvents() const;
47 };
48 
49 /*****************************************************************************/
50 
51 #endif  /* ANDROID_PROXIMITY_SENSOR_H */
52