annotate rvinterf/lowlevel/rvtdump.c @ 248:cb1ba53a1106

beginning of factored-out libserial
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 21 Sep 2017 21:43:34 +0000
parents 7168f63fc3b8
children 6f078c4a5506
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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2 * This program reads bytes from a serial port, parses them assuming
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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3 * TI's RVT MUX format, and prints every decoded packet.
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Mychaela Falconia <falcon@freecalypso.org>
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4 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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5
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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6 #include <sys/types.h>
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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7 #include <sys/errno.h>
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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8 #include <stdio.h>
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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9 #include <stdlib.h>
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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10 #include <unistd.h>
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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11 #include <time.h>
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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12 #include "../include/pktmux.h"
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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13
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 extern int target_fd;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 extern char *baudrate_name;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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16
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 extern u_char rxpkt[];
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 extern size_t rxpkt_len;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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19
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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20 char *logfname;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 FILE *logF;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 time_t logtime;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 int background;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 int no_output; /* for output.c */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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25
222
7168f63fc3b8 rvinterf: implemented keepalive mechanism
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
26 static char keepalive_msg[] =
7168f63fc3b8 rvinterf: implemented keepalive mechanism
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
27 "Received keepalive query, unable to respond, please run rvinterf";
7168f63fc3b8 rvinterf: implemented keepalive mechanism
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
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28
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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29 main(argc, argv)
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parents:
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30 char **argv;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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31 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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32 extern char *optarg;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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33 extern int optind;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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34 int c;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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35 fd_set fds;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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36
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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37 while ((c = getopt(argc, argv, "bB:d:l:")) != EOF)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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38 switch (c) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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39 case 'b':
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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40 background++;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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41 no_output++; /* for output.c */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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42 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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43 case 'B':
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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44 baudrate_name = optarg;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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45 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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46 case 'd':
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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47 target_fd = atoi(optarg);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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48 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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49 case 'l':
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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50 logfname = optarg;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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51 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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52 case '?':
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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53 default:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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54 usage: fprintf(stderr,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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55 "usage: %s [options] ttyport\n", argv[0]);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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56 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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57 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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58 if (background && !logfname) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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59 fprintf(stderr, "%s: -b is meaningless without -l\n", argv[0]);
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parents:
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60 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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61 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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62 if (target_fd <= 0) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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63 if (argc - optind != 1)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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64 goto usage;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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65 open_target_serial(argv[optind]);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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66 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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67
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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68 set_serial_nonblock(0);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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69 setlinebuf(stdout);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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70 if (logfname) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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71 logF = fopen(logfname, "w");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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72 if (!logF) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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73 perror(logfname);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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75 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 setlinebuf(logF);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 fprintf(logF, "*** Log of decoded RVT output ***\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 if (background) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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80 c = fork();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 if (c < 0) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 perror("fork");
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 exit(1);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 if (c) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86 printf("rvtdump forked into background (pid %d)\n", c);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 exit(0);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 for (;;) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 FD_ZERO(&fds);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 FD_SET(target_fd, &fds);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 c = select(target_fd+1, &fds, 0, 0, 0);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 time(&logtime);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 if (c < 0) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 if (errno == EINTR)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 continue;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 perror("select");
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 exit(1);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101 if (FD_ISSET(target_fd, &fds))
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 process_serial_rx();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 handle_rx_packet()
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107 {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108 switch (rxpkt[0]) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 case RVT_RV_HEADER:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 if (rxpkt_len < 6)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 goto unknown;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
112 print_rv_trace();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114 case RVT_L1_HEADER:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 print_l1_trace();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 case RVT_L23_HEADER:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 print_g23_trace();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 case RVT_TM_HEADER:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 print_tm_output_raw();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 case RVT_AT_HEADER:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 print_ati_output();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 case RVT_EXTUI_HEADER:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 if (rxpkt_len < 5 || !(rxpkt_len & 1))
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 goto unknown;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 report_extui_packet();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 case RVT_TCH_HEADER:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 print_tch_output_raw();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 return;
222
7168f63fc3b8 rvinterf: implemented keepalive mechanism
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
134 case RVT_KEEPALIVE_HEADER:
7168f63fc3b8 rvinterf: implemented keepalive mechanism
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
135 if (rxpkt_len != 2 || rxpkt[1] != 'Q')
7168f63fc3b8 rvinterf: implemented keepalive mechanism
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
136 goto unknown;
7168f63fc3b8 rvinterf: implemented keepalive mechanism
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
137 output_line(keepalive_msg);
7168f63fc3b8 rvinterf: implemented keepalive mechanism
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
138 return;
0
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 case '*':
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 print_fc_lld_msg();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 return;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 default:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 unknown:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 print_unknown_packet();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 }