1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/*
* This file is Copyright (c) 2019 by the GPSD project
* SPDX-License-Identifier: BSD-2-clause
*/
#include <stdlib.h>
#include <time.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include "gps.h"
int main (int argc, char **argv) {
struct gps_data_t gps_data;
int gpsopen = -2;
/* debug
* FILE *fp = fopen("/data/bin/gpslog", "a+");
* gps_enable_debug(3, fp);
*/
printf("Usage: gpsdtest [host]\n\n");
memset(&gps_data, 0, sizeof(gps_data));
while (1) {
if (gpsopen < 0) {
gpsopen = gps_open((argc == 1 ? "localhost" : argv[1]),
"2947", &gps_data);
if (0 == gpsopen) {
printf("gps_open returned 0 (success)\n");
gps_stream(&gps_data, WATCH_ENABLE, NULL);
} else {
printf("gps_open failed, returned: %d\n", gpsopen);
gpsopen = -1;
sleep(5);
continue;
}
}
if (gps_waiting (&gps_data, 2000000)) {
errno = 0;
if (gps_read (&gps_data, NULL, 0) != -1) {
if (gps_data.status >= 1 && gps_data.fix.mode >= 2){
printf("\nHave a fix: ");
if (gps_data.fix.mode == 2)
printf("2D\n");
else
printf("3D\n");
printf("Latitude: %f\n", gps_data.fix.latitude);
printf("Longitude: %f\n", gps_data.fix.longitude);
printf("Speed: %f\n", gps_data.fix.speed);
printf("Bearing: %f\n", gps_data.fix.track);
printf("H Accuracy: %f\n", gps_data.fix.eph);
printf("S Accuracy: %f\n", gps_data.fix.eps);
printf("B Accuracy: %f\n", gps_data.fix.epd);
printf("Time: %ld\n", (long) gps_data.fix.time);
printf("Altitude: %f\n", gps_data.fix.altitude);
printf("V Accuracy: %f\n\n", gps_data.fix.epv);
}
printf("Satellites visible: %d\n",
gps_data.satellites_visible);
for (int i = 0; i < gps_data.satellites_visible; i++) {
printf("SV type: ");
switch (gps_data.skyview[i].gnssid) {
case 0:
printf("GPS, ");
break;
case 1:
printf("SBAS, ");
break;
case 2:
printf("Galileo, ");
break;
case 3:
printf("Beidou, ");
break;
case 4:
printf("Unknown, ");
break;
case 5:
printf("QZSS, ");
break;
case 6:
printf("Glonass, ");
break;
}
printf("SVID: %d, SNR: %d, Elevation: %d, "
"Azimuth: %d, Used: %d\n",
gps_data.skyview[i].svid,
(int)gps_data.skyview[i].ss,
gps_data.skyview[i].elevation,
gps_data.skyview[i].azimuth,
gps_data.skyview[i].used);
}
}
}
}
}
|
