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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_GUI_SENSOR_H
18 #define ANDROID_GUI_SENSOR_H
19 
20 #include <stdint.h>
21 #include <sys/types.h>
22 
23 #include <utils/Errors.h>
24 #include <utils/Flattenable.h>
25 #include <utils/String8.h>
26 #include <utils/Timers.h>
27 
28 #include <hardware/sensors.h>
29 
30 #include <android/sensor.h>
31 
32 // ----------------------------------------------------------------------------
33 // Concrete types for the NDK
34 struct ASensor { };
35 
36 // ----------------------------------------------------------------------------
37 namespace android {
38 // ----------------------------------------------------------------------------
39 
40 class Parcel;
41 
42 // ----------------------------------------------------------------------------
43 
44 class Sensor : public ASensor, public Flattenable
45 {
46 public:
47     enum {
48         TYPE_ACCELEROMETER  = ASENSOR_TYPE_ACCELEROMETER,
49         TYPE_MAGNETIC_FIELD = ASENSOR_TYPE_MAGNETIC_FIELD,
50         TYPE_GYROSCOPE      = ASENSOR_TYPE_GYROSCOPE,
51         TYPE_LIGHT          = ASENSOR_TYPE_LIGHT,
52         TYPE_PROXIMITY      = ASENSOR_TYPE_PROXIMITY
53     };
54 
55             Sensor();
56             Sensor(struct sensor_t const* hwSensor);
57     virtual ~Sensor();
58 
59     const String8& getName() const;
60     const String8& getVendor() const;
61     int32_t getHandle() const;
62     int32_t getType() const;
63     float getMinValue() const;
64     float getMaxValue() const;
65     float getResolution() const;
66     float getPowerUsage() const;
67     int32_t getMinDelay() const;
68     nsecs_t getMinDelayNs() const;
69     int32_t getVersion() const;
70 
71     // Flattenable interface
72     virtual size_t getFlattenedSize() const;
73     virtual size_t getFdCount() const;
74     virtual status_t flatten(void* buffer, size_t size,
75             int fds[], size_t count) const;
76     virtual status_t unflatten(void const* buffer, size_t size,
77             int fds[], size_t count);
78 
79 private:
80     String8 mName;
81     String8 mVendor;
82     int32_t mHandle;
83     int32_t mType;
84     float   mMinValue;
85     float   mMaxValue;
86     float   mResolution;
87     float   mPower;
88     int32_t mMinDelay;
89     int32_t mVersion;
90 };
91 
92 // ----------------------------------------------------------------------------
93 }; // namespace android
94 
95 #endif // ANDROID_GUI_SENSOR_H
96