Sensor.h revision 8683fca395d01734ec7946e9f0595ec5d7b754c6 
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
34struct ASensor { };
35
36// ----------------------------------------------------------------------------
37namespace android {
38// ----------------------------------------------------------------------------
39
40class Parcel;
41
42// ----------------------------------------------------------------------------
43
44class Sensor : public ASensor, public LightFlattenable<Sensor>
45{
46public:
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            ~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    // LightFlattenable protocol
72    inline bool isFixedSize() const { return false; }
73    size_t getSize() const;
74    status_t flatten(void* buffer) const;
75    status_t unflatten(void const* buffer, size_t size);
76
77private:
78    String8 mName;
79    String8 mVendor;
80    int32_t mHandle;
81    int32_t mType;
82    float   mMinValue;
83    float   mMaxValue;
84    float   mResolution;
85    float   mPower;
86    int32_t mMinDelay;
87    int32_t mVersion;
88};
89
90// ----------------------------------------------------------------------------
91}; // namespace android
92
93#endif // ANDROID_GUI_SENSOR_H
94