FreeCalypso > hg > freecalypso-tools

annotate loadtools/bpmain.c @ 407:19e5a3e2f9c0

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fcup-settime: moved time() retrieval a little closer to the output A fundamental problem with all simple time transfer tools is that there is always some delay between the time retrieval on the source system and that transmitted time being set on the destination, and the resulting time on the destination system is off by that delay amount. This delay cannot be fully eliminated when working in a simple environment like ours, but we should make our best effort to minimize it. In the present case, moving the atinterf_init() call before the time() retrieval should make a teensy-tiny improvement.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Aug 2018 21:52:17 +0000
parents 8c011177adb9
children aba969153d20
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1 /*
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2 * This module contains the main() function for fc-buzplay
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdint.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <unistd.h>
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10 #include "srecreader.h"
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11
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12 char *target_ttydev;
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13
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14 extern struct srecreader iramimage;
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15 extern char default_buzplayer_image[];
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16 extern void (*default_exit)();
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17 extern int gta_modem_poweron;
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19 extern struct baudrate *find_baudrate_by_name();
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21 static struct baudrate *reattach;
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23 main(argc, argv)
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24 char **argv;
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25 {
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26 extern char *optarg;
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27 extern int optind;
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28 int c;
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29 char command[512];
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31 while ((c = getopt(argc, argv, "a:b:c:C:h:H:i:nr:")) != EOF)
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32 switch (c) {
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33 case 'a':
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34 iramimage.filename = optarg;
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35 continue;
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36 case 'b':
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37 set_romload_baudrate(optarg);
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38 continue;
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39 case 'c':
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40 set_compalstage_short(optarg);
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41 continue;
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42 case 'C':
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43 set_compalstage_fullpath(optarg);
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44 continue;
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45 case 'h':
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46 read_hwparam_file_shortname(optarg);
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47 continue;
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48 case 'H':
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49 read_hwparam_file_fullpath(optarg);
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50 continue;
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51 case 'i':
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52 set_beacon_interval(optarg);
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53 continue;
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54 case 'n':
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55 gta_modem_poweron = 0;
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56 continue;
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57 case 'r':
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58 reattach = find_baudrate_by_name(optarg);
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59 if (!reattach)
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60 exit(1); /* error msg already printed */
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61 continue;
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62 case '?':
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63 default:
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64 usage: fprintf(stderr,
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65 "usage: fc-buzplay [options] ttyport\n");
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66 exit(1);
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67 }
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68 if (argc - optind != 1)
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69 goto usage;
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70 target_ttydev = argv[optind];
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71 if (!iramimage.filename)
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72 iramimage.filename = default_buzplayer_image;
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73
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74 open_serial_port(target_ttydev);
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75 if (reattach)
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76 set_serial_baudrate(reattach);
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77 else {
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78 perform_compal_stage();
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79 perform_romload();
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80 putchar('\n');
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81 if (tpinterf_pass_output(1) < 0)
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82 exit(1);
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83 putchar('\n');
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84 }
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85 for (;;) {
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86 if (isatty(0)) {
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87 fputs("buzplay> ", stdout);
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88 fflush(stdout);
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89 }
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90 if (!fgets(command, sizeof command, stdin))
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91 default_exit(0);
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92 buzplay_dispatch_cmd(command);
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93 }
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94 }