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comparison testugen2.c @ 27:d5a265299a4b

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Test programs to talk to the hardware from a PC
author darius
date Mon, 10 Apr 2006 17:22:17 +0930
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26:350e8655cbb7 27:d5a265299a4b
1 #include <sys/types.h>
2 #include <sys/ioctl.h>
3 #include <dev/usb/usb.h>
4 #include <sys/errno.h>
5 #include <sys/uio.h>
6 #include <unistd.h>
7 #include <fcntl.h>
8 #include <stdio.h>
9 #include <string.h>
10 #include <stdlib.h>
11
12 /* Return codes for OWFirst()/OWNext() */
13 #define OW_BADWIRE -3
14 #define OW_BADCRC -2
15 #define OW_NOPRESENCE -1
16 #define OW_NOMODULES 0
17 #define OW_FOUND 1
18
19 void docmd(int fd, uint8_t *buffer, int rlen, int wlen);
20
21 int
22 main(int argc, char **argv) {
23 int endptfd, i;
24 char *endptname = "/dev/ugen0.2";
25 uint8_t buffer[9];
26
27 if (argc < 2) {
28 fprintf(stderr,
29 "Bad usage:\n"
30 "\t%s cmd\n", argv[0]);
31 exit(1);
32 }
33
34 if ((endptfd = open(endptname, O_RDWR)) == -1) {
35 fprintf(stderr, "Unable to open %s: %s\n", endptname, strerror(errno));
36 exit(1);
37 }
38
39 i = 1;
40 if (ioctl(endptfd, USB_SET_SHORT_XFER, &i) == -1) {
41 fprintf(stderr, "Unable to set short xfer on end point 1: %s\n", strerror(errno));
42 exit(1);
43 }
44
45 bzero(buffer, 9);
46
47 if (!strcmp(argv[1], "reset")) {
48 buffer[0] = 0x00;
49 docmd(endptfd, buffer, 1, 1);
50 printf("OWTouchReset() reported %d\n", buffer[0]);
51 } else if (!strcmp(argv[1], "first")) {
52 buffer[0] = 0x01;
53 docmd(endptfd, buffer, 1, 9);
54 printf("OWFirst() = %d\n", buffer[0]);
55 if (buffer[0] == OW_FOUND)
56 printf("Found module %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
57 buffer[1], buffer[2], buffer[3], buffer[4],
58 buffer[5], buffer[6], buffer[7], buffer[8]);
59 } else if (!strcmp(argv[1], "next")) {
60 if (scanf(argv[2], "%hh:%hh:%hh:%hh:%hh:%hh:%hh:%hh", &buffer[1], &buffer[2], &buffer[3],
61 &buffer[4], &buffer[5], &buffer[6], &buffer[7], &buffer[8]) != 8) {
62 fprintf(stderr, "Unable to parse ROM ID\n");
63 exit(1);
64 }
65 buffer[0] = 0x02;
66 fprintf(stderr, "About to OWNext()\n");
67 docmd(endptfd, buffer, 9, 9);
68 fprintf(stderr, "OWNext() = %d\n", buffer[0]);
69 if (buffer[0] == OW_FOUND)
70 printf("Found module %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
71 buffer[1], buffer[2], buffer[3], buffer[4],
72 buffer[5], buffer[6], buffer[7], buffer[8]);
73
74 } else if (!strcmp(argv[1], "scan")) {
75 buffer[0] = 0x00;
76 fprintf(stderr, "About to reset\n");
77 docmd(endptfd, buffer, 1, 1);
78 printf("OWReset() reported %d\n", buffer[0]);
79 if (buffer[0] != 0)
80 exit(1);
81
82 bzero(buffer, 9);
83 buffer[0] = 0x01;
84 fprintf(stderr, "About to OWFirst()\n");
85 docmd(endptfd, buffer, 1, 9);
86 printf("OWFirst() = %d\n", buffer[0]);
87
88 do {
89 switch (buffer[0]) {
90 case OW_BADWIRE:
91 printf("Bad wiring, either bus is held low, or a presence pulse was detected but no module found\n");
92 break;
93
94 case OW_NOPRESENCE:
95 printf("No presence pulse detected\n");
96 break;
97
98 case OW_BADCRC:
99 printf("Bad CRC\n");
100 break;
101
102 case OW_NOMODULES:
103 case OW_FOUND:
104 break;
105
106 default:
107 printf("Unknown return code %d\n", buffer[0]);
108 break;
109 }
110
111 if (buffer[0] != OW_FOUND) {
112 printf("No more modules\n");
113 break;
114 } else {
115 printf("Found module %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
116 buffer[1], buffer[2], buffer[3], buffer[4],
117 buffer[5], buffer[6], buffer[7], buffer[8]);
118 }
119
120 buffer[0] = 0x02;
121 fprintf(stderr, "About to OWNext()\n");
122 docmd(endptfd, buffer, 9, 9);
123 } while(1);
124 } else {
125 printf("Unknown command: %s\n", argv[1]);
126 exit(1);
127 }
128
129
130 exit(0);
131 }
132
133 void
134 docmd(int fd, uint8_t *buffer, int wlen, int rlen) {
135 char blah[20];
136 int i;
137
138 fprintf(stderr, "About to write\n");
139 gets(blah);
140
141 if ((i = write(fd, buffer, wlen)) == -1) {
142 fprintf(stderr, "Unable to write end point: %s\n", strerror(errno));
143 exit(1);
144 }
145 if (i != wlen)
146 printf("Warning, only wrote %d of %d bytes\n", i, wlen);
147
148 fprintf(stderr, "About to read\n");
149 gets(blah);
150
151 if ((i = read(fd, buffer, rlen)) == -1) {
152 fprintf(stderr, "Unable to read from end point: %s\n", strerror(errno));
153 exit(1);
154 }
155 if (i != rlen)
156 printf("Warning, only read %d of %d bytes\n", i, wlen);
157 }
158
159