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 #include "SensorServiceUtils.h"
18 
19 #include <hardware/sensors.h>
20 
21 namespace android {
22 namespace SensorServiceUtil {
23 
24 // Keep in sync with sSensorReportingMode in Sensor.java
eventSizeBySensorType(int type)25 size_t eventSizeBySensorType(int type) {
26     if (type >= SENSOR_TYPE_DEVICE_PRIVATE_BASE) {
27         return 16;
28     }
29     switch (type) {
30         case SENSOR_TYPE_POSE_6DOF:
31             return 16;
32 
33         case SENSOR_TYPE_ROTATION_VECTOR:
34         case SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR:
35             return 5;
36 
37         case SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED:
38         case SENSOR_TYPE_GYROSCOPE_UNCALIBRATED:
39             return 6;
40 
41         case SENSOR_TYPE_GAME_ROTATION_VECTOR:
42             return 4;
43 
44         case SENSOR_TYPE_SIGNIFICANT_MOTION:
45         case SENSOR_TYPE_STEP_DETECTOR:
46         case SENSOR_TYPE_STEP_COUNTER:
47         case SENSOR_TYPE_HEART_RATE:
48         case SENSOR_TYPE_TILT_DETECTOR:
49         case SENSOR_TYPE_WAKE_GESTURE:
50         case SENSOR_TYPE_GLANCE_GESTURE:
51         case SENSOR_TYPE_PICK_UP_GESTURE:
52         case SENSOR_TYPE_WRIST_TILT_GESTURE:
53         case SENSOR_TYPE_DEVICE_ORIENTATION:
54         case SENSOR_TYPE_STATIONARY_DETECT:
55         case SENSOR_TYPE_MOTION_DETECT:
56         case SENSOR_TYPE_HEART_BEAT:
57         case SENSOR_TYPE_LOW_LATENCY_OFFBODY_DETECT:
58             return 1;
59 
60         default:
61             return 3;
62     }
63 }
64 
65 } // namespace SensorServiceUtil
66 } // namespace android;
67