FreeCalypso > hg > freecalypso-tools

comparison rvinterf/lowlevel/rvtdump.c @ 0:e7502631a0f9

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initial import from freecalypso-sw rev 1033:5ab737ac3ad7
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Jun 2016 00:13:35 +0000
parents
children 7168f63fc3b8
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-1:000000000000 0:e7502631a0f9
1 /*
2 * This program reads bytes from a serial port, parses them assuming
3 * TI's RVT MUX format, and prints every decoded packet.
4 */
5
6 #include <sys/types.h>
7 #include <sys/errno.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <unistd.h>
11 #include <time.h>
12 #include "../include/pktmux.h"
13
14 extern int target_fd;
15 extern char *baudrate_name;
16
17 extern u_char rxpkt[];
18 extern size_t rxpkt_len;
19
20 char *logfname;
21 FILE *logF;
22 time_t logtime;
23 int background;
24 int no_output; /* for output.c */
25
26 main(argc, argv)
27 char **argv;
28 {
29 extern char *optarg;
30 extern int optind;
31 int c;
32 fd_set fds;
33
34 while ((c = getopt(argc, argv, "bB:d:l:")) != EOF)
35 switch (c) {
36 case 'b':
37 background++;
38 no_output++; /* for output.c */
39 continue;
40 case 'B':
41 baudrate_name = optarg;
42 continue;
43 case 'd':
44 target_fd = atoi(optarg);
45 continue;
46 case 'l':
47 logfname = optarg;
48 continue;
49 case '?':
50 default:
51 usage: fprintf(stderr,
52 "usage: %s [options] ttyport\n", argv[0]);
53 exit(1);
54 }
55 if (background && !logfname) {
56 fprintf(stderr, "%s: -b is meaningless without -l\n", argv[0]);
57 exit(1);
58 }
59 if (target_fd <= 0) {
60 if (argc - optind != 1)
61 goto usage;
62 open_target_serial(argv[optind]);
63 }
64
65 set_serial_nonblock(0);
66 setlinebuf(stdout);
67 if (logfname) {
68 logF = fopen(logfname, "w");
69 if (!logF) {
70 perror(logfname);
71 exit(1);
72 }
73 setlinebuf(logF);
74 fprintf(logF, "*** Log of decoded RVT output ***\n");
75 }
76 if (background) {
77 c = fork();
78 if (c < 0) {
79 perror("fork");
80 exit(1);
81 }
82 if (c) {
83 printf("rvtdump forked into background (pid %d)\n", c);
84 exit(0);
85 }
86 }
87 for (;;) {
88 FD_ZERO(&fds);
89 FD_SET(target_fd, &fds);
90 c = select(target_fd+1, &fds, 0, 0, 0);
91 time(&logtime);
92 if (c < 0) {
93 if (errno == EINTR)
94 continue;
95 perror("select");
96 exit(1);
97 }
98 if (FD_ISSET(target_fd, &fds))
99 process_serial_rx();
100 }
101 }
102
103 handle_rx_packet()
104 {
105 switch (rxpkt[0]) {
106 case RVT_RV_HEADER:
107 if (rxpkt_len < 6)
108 goto unknown;
109 print_rv_trace();
110 return;
111 case RVT_L1_HEADER:
112 print_l1_trace();
113 return;
114 case RVT_L23_HEADER:
115 print_g23_trace();
116 return;
117 case RVT_TM_HEADER:
118 print_tm_output_raw();
119 return;
120 case RVT_AT_HEADER:
121 print_ati_output();
122 return;
123 case RVT_EXTUI_HEADER:
124 if (rxpkt_len < 5 || !(rxpkt_len & 1))
125 goto unknown;
126 report_extui_packet();
127 return;
128 case RVT_TCH_HEADER:
129 print_tch_output_raw();
130 return;
131 case '*':
132 print_fc_lld_msg();
133 return;
134 default:
135 unknown:
136 print_unknown_packet();
137 }
138 }