Peng Xu | a295835 | 2016-01-26 18:42:17 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 | package android.hardware; |
| 18 | |
| 19 | import android.annotation.IntDef; |
| 20 | |
| 21 | import java.lang.annotation.Retention; |
| 22 | import java.lang.annotation.RetentionPolicy; |
| 23 | |
| 24 | /** |
| 25 | * This class represents a {@link android.hardware.Sensor Sensor} additional information frame, |
| 26 | * which is reported through listener callback {@link |
| 27 | * android.hardware.SensorEventCallback#onSensorAdditionalInfo onSensorAdditionalInfo}. |
| 28 | * |
| 29 | * @see SensorManager |
Peng Xu | fb1c941 | 2016-03-29 21:50:43 -0700 | [diff] [blame] | 30 | * @see SensorEventCallback |
Peng Xu | a295835 | 2016-01-26 18:42:17 -0800 | [diff] [blame] | 31 | * @see Sensor |
| 32 | * |
| 33 | */ |
| 34 | |
| 35 | public class SensorAdditionalInfo { |
| 36 | |
| 37 | /** |
| 38 | * The sensor that generated this event. See |
| 39 | * {@link android.hardware.SensorManager SensorManager} for details. |
| 40 | */ |
| 41 | public final Sensor sensor; |
| 42 | |
| 43 | /** |
| 44 | * Type of this additional info frame. |
| 45 | */ |
| 46 | public final int type; |
| 47 | |
| 48 | /** |
| 49 | * Sequence number of frame for a certain type. |
| 50 | */ |
| 51 | public final int serial; |
| 52 | |
| 53 | /** |
| 54 | * Additional info payload data represented in float values. Depending on the type of |
| 55 | * information, this may be null. |
| 56 | */ |
| 57 | public final float[] floatValues; |
| 58 | |
| 59 | /** |
| 60 | * Additional info payload data represented in int values. Depending on the type of information, |
| 61 | * this may be null. |
| 62 | */ |
| 63 | public final int[] intValues; |
| 64 | |
| 65 | /** |
| 66 | * Typical values of additional infomation type. The set of values is subject to extension in |
| 67 | * newer versions and vendors have the freedom of define their own custom values. |
| 68 | * |
| 69 | * @hide |
| 70 | */ |
| 71 | @IntDef({TYPE_FRAME_BEGIN, TYPE_FRAME_END, TYPE_UNTRACKED_DELAY, TYPE_INTERNAL_TEMPERATURE, |
| 72 | TYPE_VEC3_CALIBRATION, TYPE_SENSOR_PLACEMENT, TYPE_SAMPLING}) |
| 73 | @Retention(RetentionPolicy.SOURCE) |
| 74 | public @interface AdditionalInfoType {} |
| 75 | |
| 76 | /** |
| 77 | * Mark the beginning of a set of additional info frames. |
| 78 | */ |
| 79 | public static final int TYPE_FRAME_BEGIN = 0; |
| 80 | |
| 81 | /** |
| 82 | * Mark the end of a set of additional info frames. |
| 83 | */ |
| 84 | public static final int TYPE_FRAME_END = 1; |
| 85 | |
| 86 | /** |
| 87 | * Untracked delay. Delays that are introduced by data processing, such as filtering, which is |
| 88 | * not taken into account by sensor timestamps. |
| 89 | * |
| 90 | * Payload: |
| 91 | * floatValues[0]: delay estimation in seconds |
| 92 | * floatValues[1]: delay estimation standard deviation |
| 93 | */ |
| 94 | public static final int TYPE_UNTRACKED_DELAY = 0x10000; |
| 95 | |
| 96 | /** |
| 97 | * Internal temperature. Sensor hardware device internal temperature. |
| 98 | * |
| 99 | * Payload: |
| 100 | * floatValues[0]: internal temperature in Celsius. |
| 101 | */ |
| 102 | public static final int TYPE_INTERNAL_TEMPERATURE = 0x10001; |
| 103 | |
| 104 | /** |
| 105 | * Vector calibration parameter. Calibration applied to a sensor with 3 elements vector output, |
| 106 | * such as accelerometer, gyro, etc. |
| 107 | * |
| 108 | * Payload: |
Peng Xu | fb1c941 | 2016-03-29 21:50:43 -0700 | [diff] [blame] | 109 | * floatValues[0..11]: First 3 rows of a homogeneous matrix in row major order that captures |
Peng Xu | a295835 | 2016-01-26 18:42:17 -0800 | [diff] [blame] | 110 | * any linear transformation, including rotation, scaling, shear, shift. |
| 111 | */ |
| 112 | public static final int TYPE_VEC3_CALIBRATION = 0x10002; |
| 113 | |
| 114 | /** |
| 115 | * Sensor placement. Describes location and installation angle of the sensor device. |
| 116 | * |
| 117 | * Payload: |
| 118 | * floatValues[0..11]: First 3 rows of homogeneous matrix in row major order that describes |
| 119 | * the location and orientation of the sensor. Origin of reference will be the mobile device |
| 120 | * geometric sensor. Reference frame is defined as the same as Android sensor frame. |
| 121 | */ |
| 122 | public static final int TYPE_SENSOR_PLACEMENT = 0x10003; |
| 123 | |
| 124 | /** |
| 125 | * Sampling parameter. Describes the raw sample period and estimated jitter of sample time in |
| 126 | * terms of standard deviation. |
| 127 | * |
| 128 | * Payload: |
| 129 | * floatValues[0]: raw sample period in seconds. |
| 130 | * floatValues[1]: standard deviation of sampling period. |
| 131 | */ |
| 132 | public static final int TYPE_SAMPLING = 0x10004; |
| 133 | |
| 134 | SensorAdditionalInfo( |
| 135 | Sensor aSensor, int aType, int aSerial, int [] aIntValues, float [] aFloatValues) { |
| 136 | sensor = aSensor; |
| 137 | type = aType; |
| 138 | serial = aSerial; |
| 139 | intValues = aIntValues; |
| 140 | floatValues = aFloatValues; |
| 141 | } |
| 142 | } |