FreeCalypso > hg > freecalypso-sw

annotate rvinterf/old/before-rvinterf/rvtdump.c @ 992:a7b0b426f9ca

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target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents 373af5f74e39
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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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
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13 extern int target_fd;
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14 extern char *baudrate_name;
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15
133
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16 extern char pr_item[];
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17 extern int sendsock_fd;
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18
134
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19 char *logfname;
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20 FILE *logF;
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21 time_t logtime;
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22 int background, sendsock_enable;
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23
126
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24 main(argc, argv)
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25 char **argv;
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26 {
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27 extern char *optarg;
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28 extern int optind;
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29 int c, maxfd;
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30 fd_set fds;
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31
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32 while ((c = getopt(argc, argv, "bB:d:l:s")) != EOF)
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33 switch (c) {
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34 case 'b':
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35 background++;
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36 continue;
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37 case 'B':
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38 baudrate_name = optarg;
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39 continue;
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40 case 'd':
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41 target_fd = atoi(optarg);
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42 continue;
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43 case 'l':
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44 logfname = optarg;
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45 continue;
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46 case 's':
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47 sendsock_enable++;
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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 }
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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 fprintf(logF, "*** Log of decoded RVT output ***\n");
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74 setlinebuf(logF);
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75 }
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76 if (sendsock_enable)
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77 create_send_socket();
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78 if (background) {
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79 c = fork();
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80 if (c < 0) {
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81 perror("fork");
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82 exit(1);
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83 }
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84 if (c) {
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85 printf("rvtdump forked into background (pid %d)\n", c);
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86 exit(0);
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87 }
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88 }
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89 maxfd = target_fd;
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90 if (sendsock_fd > maxfd)
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91 maxfd = sendsock_fd;
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92 for (;;) {
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93 FD_ZERO(&fds);
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94 FD_SET(target_fd, &fds);
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95 if (sendsock_enable)
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96 FD_SET(sendsock_fd, &fds);
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97 c = select(maxfd+1, &fds, 0, 0, 0);
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98 time(&logtime);
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99 if (c < 0) {
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100 if (errno == EINTR)
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101 continue;
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102 perror("select");
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103 exit(1);
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104 }
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105 if (FD_ISSET(target_fd, &fds))
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106 process_serial_rx();
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107 if (FD_ISSET(sendsock_fd, &fds))
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108 handle_sendsock();
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109 }
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110 }
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111
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112 handle_rx_packet()
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113 {
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114 print_rx_packet();
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115 }
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116
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117 print_item()
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118 {
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119 if (!background)
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120 printf("%s\n", pr_item);
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121 if (logF)
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122 log_item();
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123 }