FreeCalypso > hg > freecalypso-sw

annotate rvinterf/lowlevel/rvtdump.c @ 701:615fb8847d3f

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top level README: typo fix
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Thu, 02 Oct 2014 18:48:12 +0000
parents 1171c32a637b
children d527ac304ad5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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811b138f1bed rvtdump utility written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 /*
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2 * This program reads bytes from a serial port, parses them assuming
811b138f1bed rvtdump utility written, compiles
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3 * TI's RVT MUX format, and prints every decoded packet.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <sys/errno.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <unistd.h>
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11 #include <time.h>
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12 #include "../include/pktmux.h"
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13
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14 extern int target_fd;
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15 extern char *baudrate_name;
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16
174
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17 extern u_char rxpkt[];
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18 extern size_t rxpkt_len;
133
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19
134
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20 char *logfname;
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21 FILE *logF;
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22 time_t logtime;
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23 int background;
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24 int no_output; /* for output.c */
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25
126
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26 main(argc, argv)
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27 char **argv;
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28 {
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29 extern char *optarg;
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30 extern int optind;
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31 int c;
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32 fd_set fds;
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33
174
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34 while ((c = getopt(argc, argv, "bB:d:l:")) != EOF)
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35 switch (c) {
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36 case 'b':
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37 background++;
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38 no_output++; /* for output.c */
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39 continue;
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40 case 'B':
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41 baudrate_name = optarg;
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42 continue;
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43 case 'd':
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44 target_fd = atoi(optarg);
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45 continue;
134
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46 case 'l':
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47 logfname = optarg;
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48 continue;
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49 case '?':
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50 default:
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51 usage: fprintf(stderr,
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52 "usage: %s [options] ttyport\n", argv[0]);
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53 exit(1);
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54 }
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55 if (background && !logfname) {
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56 fprintf(stderr, "%s: -b is meaningless without -l\n", argv[0]);
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57 exit(1);
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58 }
126
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59 if (target_fd <= 0) {
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60 if (argc - optind != 1)
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61 goto usage;
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62 open_target_serial(argv[optind]);
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63 }
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64
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65 set_serial_nonblock(0);
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66 setlinebuf(stdout);
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67 if (logfname) {
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68 logF = fopen(logfname, "w");
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69 if (!logF) {
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70 perror(logfname);
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71 exit(1);
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72 }
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73 setlinebuf(logF);
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74 fprintf(logF, "*** Log of decoded RVT output ***\n");
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75 }
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76 if (background) {
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77 c = fork();
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78 if (c < 0) {
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79 perror("fork");
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80 exit(1);
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81 }
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82 if (c) {
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83 printf("rvtdump forked into background (pid %d)\n", c);
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84 exit(0);
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85 }
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86 }
126
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87 for (;;) {
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88 FD_ZERO(&fds);
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89 FD_SET(target_fd, &fds);
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90 c = select(target_fd+1, &fds, 0, 0, 0);
134
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91 time(&logtime);
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92 if (c < 0) {
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93 if (errno == EINTR)
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94 continue;
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95 perror("select");
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96 exit(1);
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97 }
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98 if (FD_ISSET(target_fd, &fds))
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99 process_serial_rx();
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100 }
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101 }
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102
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103 handle_rx_packet()
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104 {
174
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105 switch (rxpkt[0]) {
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106 case RVT_RV_HEADER:
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107 if (rxpkt_len < 6)
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108 goto unknown;
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109 print_rv_trace();
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110 return;
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111 case RVT_L1_HEADER:
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112 print_l1_trace();
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113 return;
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114 case RVT_L23_HEADER:
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115 print_g23_trace();
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116 return;
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117 case RVT_TM_HEADER:
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118 print_etm_output_raw();
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119 return;
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120 default:
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121 unknown:
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122 print_unknown_packet();
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123 }
126
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124 }