1 /* Copyright 2023 Unionman Technology Co., Ltd.
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 *
15 */
16
17 #include <cstdio>
18 #include <unistd.h>
19 #include "hdf_base.h"
20 #include "hdf_log.h"
21 #include "hdf_sbuf.h"
22 #include "hdf_io_service_if.h"
23 #include "sensor_if.h"
24 #include "sensor_type.h"
25
26 /* 创建回调函数 */
SensorDataCallback(const struct SensorEvents * event)27 static int32_t SensorDataCallback(const struct SensorEvents *event)
28 {
29 if (event == nullptr) {
30 return HDF_FAILURE;
31 }
32
33 float sensorData = *((float *)event->data);
34 printf("sensor id [%d], data : %.2f\n", event->sensorId, sensorData);
35
36 return HDF_SUCCESS;
37 }
38
SensorEntry(void)39 static void SensorEntry(void)
40 {
41 int ret;
42 struct SensorInformation *sensorInfo = nullptr;
43 int32_t count = 0;
44 int32_t sensorInterval = 200000000; /* 数据采样率设置200毫秒，单位纳秒 */
45 int32_t reportInterval = 400000000; /* 数据上报间隔设置400毫秒，单位纳秒 */
46 int32_t sleepTime = 1000000; /* 1秒，单位毫秒 */
47
48 /* 1.创建传感器接口实例 */
49 const struct SensorInterface *sensorDev = NewSensorInterfaceInstance();
50 if (sensorDev == nullptr) {
51 printf("NewSensorInterfaceInstance fail!\n");
52 return;
53 }
54
55 printf("NewSensorInterfaceInstance success\n");
56
57 /* 2.订阅者注册传感器数据回调处理函数 */
58 ret = sensorDev->Register(TRADITIONAL_SENSOR_TYPE, SensorDataCallback);
59 if (ret != HDF_SUCCESS) {
60 return;
61 }
62
63 printf("Register success\n");
64
65 /* 3.获取设备支持的Sensor列表 */
66 ret = sensorDev->GetAllSensors(&sensorInfo, &count);
67 if (ret != HDF_SUCCESS) {
68 return;
69 }
70
71 printf("GetAllSensors count: %d\n", count);
72
73 for (int i = 0; i < count; i++) {
74 printf("sensor [%d] : sensorName:%s, vendorName:%s, sensorTypeId:%d, sensorId:%d\n", i,
75 sensorInfo[i].sensorName, sensorInfo[i].vendorName, sensorInfo[i].sensorTypeId, sensorInfo[i].sensorId);
76 }
77
78 for (int i = 0; i < count; i++) {
79 /* 4.设置传感器采样率 */
80 ret = sensorDev->SetBatch(sensorInfo[i].sensorId, sensorInterval, reportInterval);
81 if (ret != HDF_SUCCESS) {
82 printf("SetBatch failed,ret: %d\n", ret);
83 continue;
84 }
85
86 printf("SetBatch success\n");
87
88 /* 5.使能传感器 */
89 ret = sensorDev->Enable(sensorInfo[i].sensorId);
90 if (ret != HDF_SUCCESS) {
91 continue;
92 }
93
94 printf("Enable success\n");
95
96 /* 等待1秒钟数据回调 */
97 usleep(sleepTime);
98
99 /* 6.去使能传感器 */
100 ret = sensorDev->Disable(sensorInfo[i].sensorId);
101 if (ret != HDF_SUCCESS) {
102 continue;
103 }
104
105 printf("Disable success\n");
106 }
107
108 /* 7.取消传感器数据订阅函数 */
109 ret = sensorDev->Unregister(TRADITIONAL_SENSOR_TYPE, SensorDataCallback);
110 if (ret != HDF_SUCCESS) {
111 return;
112 }
113
114 printf("Unregister success\n");
115
116 /* 8.释放传感器接口实例 */
117 ret = FreeSensorInterfaceInstance();
118 if (ret != HDF_SUCCESS) {
119 return;
120 }
121
122 printf("FreeSensorInterfaceInstance success\n");
123 }
124
main(int argc,char * argv[])125 int main(int argc, char *argv[])
126 {
127 SensorEntry();
128 return HDF_SUCCESS;
129 }
130