FreeCalypso > hg > fc-usbser-tools
annotate cp2102/write_eeprom_main.c @ 100:29bff463402e
doc/CP2102-EEPROM-format: part number byte confirmed
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 28 Sep 2023 05:39:44 +0000 |
parents | 1cacc1ae56f0 |
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1 /* |
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2 * This program reads a CP2102 EEPROM image from an Intel HEX file |
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3 * and writes it into a physical CP2102 USB device. |
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4 */ |
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5 |
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6 #include <sys/types.h> |
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7 #include <string.h> |
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8 #include <strings.h> |
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9 #include <stdio.h> |
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10 #include <stdlib.h> |
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11 #include <unistd.h> |
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12 #include <usb.h> |
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13 #include "../libuwrap/find_dev.h" |
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14 #include "../libuwrap/open_close.h" |
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15 #include "cp210x_defs.h" |
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16 |
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17 extern struct usb_device *find_cp2102_device(); |
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18 |
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19 u_char eeprom[SIZE_EEPROM]; |
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20 char *device_selector, *input_filename; |
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21 int no_detach; |
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22 |
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23 process_cmdline(argc, argv) |
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24 char **argv; |
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25 { |
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26 int c; |
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27 extern int optind; |
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28 extern char *optarg; |
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29 |
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30 while ((c = getopt(argc, argv, "d:n")) != EOF) { |
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31 switch (c) { |
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32 case 'd': |
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33 device_selector = optarg; |
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34 continue; |
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35 case 'n': |
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36 no_detach = 1; |
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37 continue; |
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38 default: |
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39 usage: |
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40 fprintf(stderr, "usage: %s [hw-options] eeprom-image\n", |
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41 argv[0]); |
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42 exit(1); |
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43 } |
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44 } |
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45 if (argc != optind + 1) |
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46 goto usage; |
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47 input_filename = argv[optind]; |
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48 } |
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49 |
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50 main(argc, argv) |
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51 char **argv; |
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52 { |
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53 struct usb_device *dev; |
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54 usb_dev_handle *usbh; |
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55 |
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56 process_cmdline(argc, argv); |
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57 read_intel_hex(input_filename); |
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58 dev = find_cp2102_device(device_selector); |
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59 usbh = usb_open(dev); |
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60 if (!usbh) { |
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61 fprintf(stderr, "error: usb_open() failed\n"); |
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62 exit(1); |
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63 } |
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64 if (!no_detach) |
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65 usbwrap_claim_all_ifs(usbh); |
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66 write_eeprom(usbh); |
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67 usb_close(usbh); |
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68 exit(0); |
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69 } |