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annotate ee2232/ee2232-prog.c @ 4:02ea5dbdf84b

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ee2232-prog: input parsing implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 05 Apr 2018 22:30:38 +0000
parents
children a85b6b7398bc
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4
02ea5dbdf84b ee2232-prog: input parsing implemented
Mychaela Falconia <falcon@freecalypso.org>
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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 char *device_selector = "i:0x0403:0x6010";
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11 unsigned eeprom_size = 64;
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12 u_short eeprom[256];
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13 int erase;
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14
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15 process_cmdline(argc, argv)
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16 char **argv;
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17 {
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18 int c;
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19 extern char *optarg;
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20
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21 while ((c = getopt(argc, argv, "d:et:")) != EOF) {
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22 switch (c) {
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23 case 'd':
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24 device_selector = optarg;
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25 continue;
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26 case 'e':
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27 erase = 1;
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28 continue;
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29 case 't':
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30 if (!strcmp(optarg, "46"))
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31 eeprom_size = 64;
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32 else if (!strcmp(optarg, "56"))
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33 eeprom_size = 128;
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34 else if (!strcmp(optarg, "66"))
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35 eeprom_size = 256;
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36 else {
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37 fprintf(stderr,
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38 "error: -t option invalid value \"%s\"\n",
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39 optarg);
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40 exit(1);
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41 }
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42 continue;
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43 default:
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44 /* error msg already printed */
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45 exit(1);
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46 }
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47 }
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48 }
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49
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50 read_eeprom_from_stdin()
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51 {
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52 unsigned n, off;
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53 int rc;
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54
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55 for (n = 0; n < eeprom_size; n += 8) {
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56 rc = scanf("%x: %hx %hx %hx %hx %hx %hx %hx %hx", &off,
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57 eeprom + n, eeprom + n + 1, eeprom + n + 2,
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58 eeprom + n + 3, eeprom + n + 4, eeprom + n + 5,
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59 eeprom + n + 6, eeprom + n + 7);
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60 if (rc != 9 || off != n * 2) {
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61 fprintf(stderr,
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62 "ee2232-prog error: invalid input on stdin\n");
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63 exit(1);
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64 }
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65 }
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66 }
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67
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68 test_output()
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69 {
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70 unsigned n, col;
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71
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72 for (n = 0; n < eeprom_size; n++) {
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73 col = n & 7;
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74 if (col == 0)
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75 printf("%02X:", n * 2);
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76 printf(" %04X", eeprom[n]);
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77 if (col == 7)
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78 putchar('\n');
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79 }
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80 }
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81
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82 main(argc, argv)
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83 char **argv;
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84 {
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85 struct ftdi_context ftdi;
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86
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87 process_cmdline(argc, argv);
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88 if (erase)
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89 memset(eeprom, 0xFF, eeprom_size * 2);
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90 else
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91 read_eeprom_from_stdin();
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92 test_output();
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93 exit(0);
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94
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95 }