FreeCalypso > hg > freecalypso-hwlab
annotate ee2232/ee2232-read.c @ 54:47dbfd66bd58
fteeprom-prog: added magic sequence from libftdi
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 09 May 2019 22:15:20 +0000 |
parents | ef43bbfa8d16 |
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rev | line source |
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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 = "i:0x0403:0x6010"; |
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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 char *optarg; |
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17 |
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18 while ((c = getopt(argc, argv, "d:t:")) != EOF) { |
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19 switch (c) { |
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20 case 'd': |
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21 device_selector = optarg; |
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22 continue; |
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23 case 't': |
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24 if (!strcmp(optarg, "46")) |
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25 eeprom_size = 64; |
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26 else if (!strcmp(optarg, "56")) |
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27 eeprom_size = 128; |
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28 else if (!strcmp(optarg, "66")) |
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29 eeprom_size = 256; |
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30 else { |
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31 fprintf(stderr, |
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32 "error: -t option invalid value \"%s\"\n", |
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33 optarg); |
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34 exit(1); |
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35 } |
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36 continue; |
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37 default: |
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38 /* error msg already printed */ |
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39 exit(1); |
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40 } |
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41 } |
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42 } |
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43 |
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44 main(argc, argv) |
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45 char **argv; |
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46 { |
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47 struct ftdi_context ftdi; |
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48 u_short word; |
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49 unsigned n, col; |
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50 |
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51 process_cmdline(argc, argv); |
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52 ftdi_init(&ftdi); |
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53 if (ftdi_usb_open_string(&ftdi, device_selector) < 0) { |
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54 fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str); |
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55 exit(1); |
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56 } |
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57 for (n = 0; n < eeprom_size; n++) { |
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58 if (ftdi_read_eeprom_location(&ftdi, n, &word) < 0) { |
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59 fprintf(stderr, "EEPROM read error: %s\n", |
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60 ftdi.error_str); |
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61 exit(1); |
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62 } |
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63 col = n & 7; |
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64 if (col == 0) |
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65 printf("%02X:", n * 2); |
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66 printf(" %04X", word); |
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67 if (col == 7) |
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68 putchar('\n'); |
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69 } |
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70 ftdi_usb_close(&ftdi); |
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71 exit(0); |
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72 } |