FreeCalypso > hg > fc-usbser-tools

annotate duart28/main.c @ 36:3794ad47a97f

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doc: on second thought, let's not get into Unbuffered-FT2232x-JTAG
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 10 Sep 2023 01:31:05 +0000
parents df284688d0c8
children b9ecfa54fe2b
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1 /*
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2 * Main module for fc-duart28-conf utility.
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3 */
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4
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5 #include <ctype.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <usb.h>
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11 #include "../libuwrap/open_close.h"
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12
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13 extern struct usb_device *find_duart28_usbdev();
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14
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15 oper_find()
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16 {
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17 struct usb_device *dev;
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18
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19 dev = find_duart28_usbdev();
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20 if (!dev)
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21 printf("No DUART28 adapter found\n");
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22 return 0;
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23 }
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24
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25 oper_check_eeprom()
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26 {
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27 struct usb_device *dev;
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28 usb_dev_handle *usbh;
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30 dev = find_duart28_usbdev();
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31 if (!dev) {
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32 fprintf(stderr, "error: no DUART28 adapter found\n");
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33 exit(1);
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34 }
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35 usbh = usb_open(dev);
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36 if (!usbh) {
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37 fprintf(stderr, "error: usb_open() failed\n");
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38 exit(1);
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39 }
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40 read_eeprom(usbh);
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41 usb_close(usbh);
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42 analyze_eeprom();
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43 return 0;
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44 }
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45
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46 oper_program(newconf)
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47 {
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48 struct usb_device *dev;
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49 usb_dev_handle *usbh;
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50 int prev;
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51
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52 dev = find_duart28_usbdev();
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53 if (!dev) {
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54 fprintf(stderr, "error: no DUART28 adapter found\n");
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55 exit(1);
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56 }
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57 usbh = usbwrap_open_dev(dev, 1);
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58 read_eeprom(usbh);
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59 prev = analyze_eeprom();
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60 if (prev == newconf) {
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61 printf("EEPROM is already in the right state, nothing to do\n");
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62 usbwrap_close_dev(usbh);
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63 return 0;
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64 }
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65 printf("Reprogramming to DUART28%c configuration\n", newconf);
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66 update_eeprom(usbh, newconf);
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67 usbwrap_close_dev(usbh);
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68 printf("EEPROM changed, replug the USB device to take effect\n");
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69 return 0;
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70 }
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71
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72 main(argc, argv)
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73 char **argv;
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74 {
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75 if (argc < 2)
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76 return oper_find();
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77 if (!strcmp(argv[1], "find")) {
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78 if (argc != 2) {
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79 fprintf(stderr,
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80 "error: %s find command takes no arguments\n",
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81 argv[0]);
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82 exit(1);
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83 }
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84 return oper_find();
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85 }
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86 if (!strcmp(argv[1], "check-eeprom")) {
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87 if (argc != 2) {
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88 fprintf(stderr,
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89 "error: %s check-eeprom command takes no arguments\n",
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90 argv[0]);
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91 exit(1);
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92 }
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93 return oper_check_eeprom();
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94 }
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95 if (!strcmp(argv[1], "set")) {
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96 if (argc != 3) {
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97 fprintf(stderr,
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98 "error: %s set command takes 1 argument\n",
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99 argv[0]);
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100 exit(1);
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101 }
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102 if (!strcmp(argv[2], "C") || !strcmp(argv[2], "S"))
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103 return oper_program(argv[2][0]);
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104 if (!strcmp(argv[2], "c") || !strcmp(argv[2], "s"))
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105 return oper_program(toupper(argv[2][0]));
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106 fprintf(stderr, "error: %s set argument must be C or S\n",
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107 argv[0]);
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108 exit(1);
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109 }
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110 fprintf(stderr, "%s error: non-understood command \"%s\"\n", argv[0],
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111 argv[1]);
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112 exit(1);
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113 }