FreeCalypso > hg > freecalypso-hwlab
annotate fteeprom/fteeprom-prog.c @ 46:e5d89313bc00
ftee-mkblank written to replace fteeprom-prog -e
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 22 Apr 2019 19:44:57 +0000 |
parents | c4b9026c8875 |
children | 2c092eb1621b |
rev | line source |
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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 char *device_selector; |
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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 int optind; |
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20 |
42
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21 while ((c = getopt(argc, argv, "bBe")) != EOF) { |
31
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22 switch (c) { |
42
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23 case 'b': |
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24 eeprom_size = 128; |
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25 continue; |
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26 case 'B': |
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27 eeprom_size = 256; |
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28 continue; |
31
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29 case 'e': |
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30 erase = 1; |
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31 continue; |
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32 default: |
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33 /* error msg already printed */ |
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34 exit(1); |
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35 } |
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36 } |
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37 if (argc != optind + 1) { |
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38 fprintf(stderr, "usage: %s [options] device-selector\n", |
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39 argv[0]); |
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40 exit(1); |
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41 } |
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42 device_selector = argv[optind]; |
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43 } |
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44 |
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45 read_eeprom_from_stdin() |
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46 { |
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47 unsigned n, off; |
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48 int rc; |
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49 |
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50 for (n = 0; n < eeprom_size; n += 8) { |
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51 rc = scanf("%x: %hx %hx %hx %hx %hx %hx %hx %hx", &off, |
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52 eeprom + n, eeprom + n + 1, eeprom + n + 2, |
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53 eeprom + n + 3, eeprom + n + 4, eeprom + n + 5, |
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54 eeprom + n + 6, eeprom + n + 7); |
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55 if (rc != 9 || off != n * 2) { |
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56 fprintf(stderr, |
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57 "ee2232-prog error: invalid input on stdin\n"); |
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58 exit(1); |
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59 } |
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60 } |
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61 } |
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62 |
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63 main(argc, argv) |
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64 char **argv; |
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65 { |
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66 struct ftdi_context ftdi; |
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67 unsigned n; |
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68 |
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69 process_cmdline(argc, argv); |
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70 if (erase) |
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71 memset(eeprom, 0xFF, eeprom_size * 2); |
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72 else |
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73 read_eeprom_from_stdin(); |
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74 ftdi_init(&ftdi); |
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75 if (ftdi_usb_open_string(&ftdi, device_selector) < 0) { |
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76 fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str); |
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77 exit(1); |
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78 } |
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79 for (n = 0; n < eeprom_size; n++) { |
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80 if (ftdi_write_eeprom_location(&ftdi, n, eeprom[n]) < 0) { |
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81 fprintf(stderr, "EEPROM write error: %s\n", |
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82 ftdi.error_str); |
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83 exit(1); |
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84 } |
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85 } |
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86 ftdi_usb_close(&ftdi); |
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87 exit(0); |
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88 } |