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annotate fteeprom/fteeprom-read.c @ 109:4aaf722ab933

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fc-simtool: update-bin-imm command implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 26 Jan 2021 01:27:58 +0000
parents c4b9026c8875
children
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1 #include <sys/types.h>
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2 #include <string.h>
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3 #include <strings.h>
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4 #include <stdio.h>
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5 #include <stdlib.h>
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6 #include <unistd.h>
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7 #include <ftdi.h>
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8
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9 char *device_selector;
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10 unsigned eeprom_size = 64;
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11
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12 process_cmdline(argc, argv)
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13 char **argv;
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14 {
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15 int c;
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16 extern int optind;
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17
42
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18 while ((c = getopt(argc, argv, "bB")) != EOF) {
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19 switch (c) {
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20 case 'b':
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21 eeprom_size = 128;
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22 continue;
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23 case 'B':
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24 eeprom_size = 256;
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25 continue;
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26 default:
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27 /* error msg already printed */
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28 exit(1);
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29 }
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30 }
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31 if (argc != optind + 1) {
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32 fprintf(stderr, "usage: %s [options] device-selector\n",
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33 argv[0]);
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34 exit(1);
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35 }
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36 device_selector = argv[optind];
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37 }
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38
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39 main(argc, argv)
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40 char **argv;
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41 {
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42 struct ftdi_context ftdi;
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43 u_short word;
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44 unsigned n, col;
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45
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46 process_cmdline(argc, argv);
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47 ftdi_init(&ftdi);
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48 if (ftdi_usb_open_string(&ftdi, device_selector) < 0) {
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49 fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str);
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50 exit(1);
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51 }
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52 for (n = 0; n < eeprom_size; n++) {
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53 if (ftdi_read_eeprom_location(&ftdi, n, &word) < 0) {
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54 fprintf(stderr, "EEPROM read error: %s\n",
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55 ftdi.error_str);
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56 exit(1);
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57 }
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58 col = n & 7;
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59 if (col == 0)
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60 printf("%02X:", n * 2);
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61 printf(" %04X", word);
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62 if (col == 7)
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63 putchar('\n');
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64 }
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65 ftdi_usb_close(&ftdi);
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66 exit(0);
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67 }