FreeCalypso > hg > freecalypso-hwlab

annotate fteeprom/fteeprom-prog.c @ 137:c331560c15a4

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fc-uicc-tool: dir command implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Feb 2021 04:27:09 +0000
parents 47dbfd66bd58
children
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31
16b625911e19 fteeprom: generalization of previous ee2232 tools
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1 #include <sys/types.h>
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2 #include <ctype.h>
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3 #include <string.h>
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4 #include <strings.h>
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5 #include <stdio.h>
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6 #include <stdlib.h>
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7 #include <unistd.h>
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8 #include <ftdi.h>
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9
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10 unsigned eeprom_size;
31
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11 u_short eeprom[256];
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12
47
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13 read_eeprom_common(inf, filename_for_errs)
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14 FILE *inf;
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15 char *filename_for_errs;
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16 {
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17 char linebuf[1024], *cp;
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18 int lineno, rc;
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19 unsigned ptr = 0, input_off;
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20
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21 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) {
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22 for (cp = linebuf; isspace(*cp); cp++)
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23 ;
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24 if (*cp == '\0' || *cp == '#')
42
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25 continue;
47
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26 if (ptr >= 256) {
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27 fprintf(stderr,
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28 "%s line %d: maximum EEPROM size exceeded\n",
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29 filename_for_errs, lineno);
31
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30 exit(1);
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31 }
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32 rc = sscanf(linebuf, "%x: %hx %hx %hx %hx %hx %hx %hx %hx",
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33 &input_off, eeprom + ptr, eeprom + ptr + 1,
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34 eeprom + ptr + 2, eeprom + ptr + 3,
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35 eeprom + ptr + 4, eeprom + ptr + 5,
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36 eeprom + ptr + 6, eeprom + ptr + 7);
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37 if (rc != 9 || input_off != ptr * 2) {
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38 fprintf(stderr, "%s line %d: invalid input\n",
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39 filename_for_errs, lineno);
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40 exit(1);
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41 }
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42 ptr += 8;
31
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43 }
47
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44 if (ptr != 64 && ptr != 128 && ptr != 256) {
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45 fprintf(stderr, "%s: not an EEPROM image of recognized size\n",
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46 filename_for_errs);
31
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47 exit(1);
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48 }
47
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49 eeprom_size = ptr;
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50 }
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51
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52 read_eeprom_from_file(filename)
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53 char *filename;
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54 {
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55 FILE *inf;
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56
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57 inf = fopen(filename, "r");
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58 if (!inf) {
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59 perror(filename);
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60 exit(1);
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61 }
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62 read_eeprom_common(inf, filename);
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63 fclose(inf);
31
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64 }
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65
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66 read_eeprom_from_stdin()
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67 {
47
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68 read_eeprom_common(stdin, "stdin");
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69 }
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70
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71 main(argc, argv)
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72 char **argv;
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73 {
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74 struct ftdi_context ftdi;
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75 u_short modem_status;
31
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76 unsigned n;
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77
47
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78 if (argc < 2 || argc > 3) {
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79 fprintf(stderr, "usage: %s device-selector [eeprom-image]\n",
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80 argv[0]);
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81 exit(1);
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82 }
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83 if (argv[2])
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84 read_eeprom_from_file(argv[2]);
31
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85 else
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86 read_eeprom_from_stdin();
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87 ftdi_init(&ftdi);
47
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88 if (ftdi_usb_open_string(&ftdi, argv[1]) < 0) {
31
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89 fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str);
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90 exit(1);
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91 }
54
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92 /* magic sequence apparently required for FT232R */
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93 if (ftdi_usb_reset(&ftdi) < 0) {
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94 fprintf(stderr, "ftdi_usb_reset() failed: %s\n",
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95 ftdi.error_str);
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96 exit(1);
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97 }
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98 if (ftdi_poll_modem_status(&ftdi, &modem_status) < 0) {
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99 fprintf(stderr, "ftdi_poll_modem_status() failed: %s\n",
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100 ftdi.error_str);
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101 exit(1);
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102 }
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103 if (ftdi_set_latency_timer(&ftdi, 0x77) < 0) {
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104 fprintf(stderr, "ftdi_set_latency_timer() failed: %s\n",
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105 ftdi.error_str);
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106 exit(1);
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107 }
31
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108 for (n = 0; n < eeprom_size; n++) {
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109 if (ftdi_write_eeprom_location(&ftdi, n, eeprom[n]) < 0) {
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110 fprintf(stderr, "EEPROM write error: %s\n",
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111 ftdi.error_str);
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112 exit(1);
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113 }
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114 }
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115 ftdi_usb_close(&ftdi);
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116 exit(0);
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117 }