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annotate fteeprom/ftee-gen2232c.c @ 83:d7a1e7a6d6ba

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linux-patch: current best offering of minpatch-*
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 06 Dec 2020 02:55:40 +0000
parents ea0b5aed9a9c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
31
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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
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9 char *configfile, *serial;
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10
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11 u_short vid = 0x0403, pid = 0x6010;
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12 char *manuf, *product;
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13 u_char byte00 = 0x08, byte01 = 0x08;
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14 u_char byte08 = 0x80, byte0A = 0x00;
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15 unsigned maxpower = 100;
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16 u_short usb_version = 0x0200;
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17
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18 u_short eeprom[128];
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19 u_char eeprom_chip = 0x46;
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20 unsigned eeprom_size, eeprom_string_ptr;
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21
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22 process_cmdline(argc, argv)
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23 char **argv;
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24 {
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25 int c;
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26 extern int optind;
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27
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28 while ((c = getopt(argc, argv, "bB")) != EOF) {
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29 switch (c) {
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30 case 'b':
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31 eeprom_chip = 0x56;
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32 continue;
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33 case 'B':
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34 eeprom_chip = 0x66;
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35 continue;
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36 default:
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37 /* error msg already printed */
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38 exit(1);
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39 }
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40 }
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41 if (argc < optind + 1 || argc > optind + 2) {
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42 fprintf(stderr,
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43 "usage: %s [options] config-file [serial-num]\n",
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44 argv[0]);
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45 exit(1);
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46 }
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47 configfile = argv[optind];
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48 serial = argv[optind+1];
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49 }
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50
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51 init_eeprom_size()
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52 {
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53 if (eeprom_chip == 0x46) {
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54 eeprom_size = 64;
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55 eeprom_string_ptr = 0x0B;
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56 } else {
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57 eeprom_size = 128;
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58 eeprom_string_ptr = 0x4B;
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59 }
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60 }
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61
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62 read_config_file()
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63 {
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64 FILE *inf;
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65 char linebuf[1024];
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66 int lineno;
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67 char *cp, *np;
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68
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69 inf = fopen(configfile, "r");
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70 if (!inf) {
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71 perror(configfile);
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72 exit(1);
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73 }
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74 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) {
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75 cp = index(linebuf, '\n');
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76 if (!cp) {
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77 fprintf(stderr,
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78 "%s line %d: too long or unterminated\n",
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79 configfile, lineno);
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80 exit(1);
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81 }
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82 *cp = '\0';
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83 for (cp = linebuf; isspace(*cp); cp++)
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84 ;
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85 if (*cp == '\0' || *cp == '#')
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86 continue;
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87 for (np = cp; *cp && !isspace(*cp); cp++)
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88 ;
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89 if (*cp)
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90 *cp++ = '\0';
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91 while (isspace(*cp))
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92 cp++;
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93 if (*cp == '\0' || *cp == '#') {
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94 fprintf(stderr,
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95 "%s line %d: \"%s\" setting without argument\n",
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96 configfile, lineno, np);
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97 exit(1);
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98 }
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99 if (!strcmp(np, "vid"))
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100 vid = strtoul(cp, 0, 16);
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101 else if (!strcmp(np, "pid"))
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102 pid = strtoul(cp, 0, 16);
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103 else if (!strcmp(np, "manuf"))
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104 manuf = strdup(cp);
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105 else if (!strcmp(np, "product"))
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106 product = strdup(cp);
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107 else if (!strcmp(np, "byte00"))
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108 byte00 = strtoul(cp, 0, 16);
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109 else if (!strcmp(np, "byte01"))
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110 byte01 = strtoul(cp, 0, 16);
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111 else if (!strcmp(np, "byte08"))
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112 byte08 = strtoul(cp, 0, 16);
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113 else if (!strcmp(np, "byte0A"))
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114 byte0A = strtoul(cp, 0, 16);
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115 else if (!strcmp(np, "maxpower"))
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116 maxpower = strtoul(cp, 0, 10);
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117 else if (!strcmp(np, "usbver"))
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118 usb_version = strtoul(cp, 0, 16);
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119 else {
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120 fprintf(stderr, "%s line %d: unknown \"%s\" setting\n",
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121 configfile, lineno, np);
31
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122 exit(1);
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123 }
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124 }
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125 fclose(inf);
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126 if (!manuf) {
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diff changeset
127 fprintf(stderr, "error: manuf not set in %s\n", configfile);
31
16b625911e19 fteeprom: generalization of previous ee2232 tools
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128 exit(1);
16b625911e19 fteeprom: generalization of previous ee2232 tools
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129 }
16b625911e19 fteeprom: generalization of previous ee2232 tools
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130 if (!product) {
43
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
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diff changeset
131 fprintf(stderr, "error: product not set in %s\n", configfile);
31
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132 exit(1);
16b625911e19 fteeprom: generalization of previous ee2232 tools
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133 }
16b625911e19 fteeprom: generalization of previous ee2232 tools
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134 }
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diff changeset
135
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136 write_string(str)
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137 char *str;
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138 {
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139 unsigned longlen, startptr;
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140
43
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
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141 if (eeprom_size - 1 - eeprom_string_ptr < strlen(str) + 1) {
34
ae48b7d69744 ftee-gen2232c: added guard against strings overflowing EEPROM space
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diff changeset
142 fprintf(stderr, "error: strings are too long\n");
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diff changeset
143 exit(1);
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diff changeset
144 }
31
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145 longlen = strlen(str) * 2 + 2;
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146 startptr = eeprom_string_ptr;
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147 eeprom[eeprom_string_ptr++] = 0x0300 | longlen;
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148 while (*str)
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149 eeprom[eeprom_string_ptr++] = *str++;
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150 return (longlen << 8) | 0x80 | (startptr << 1);
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151 }
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diff changeset
152
43
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
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diff changeset
153 fill_eeprom()
31
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154 {
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155 u_char byte09;
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156
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157 if (serial)
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158 byte0A |= 0x08;
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159 else
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diff changeset
160 byte0A &= 0xF7;
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161 byte09 = maxpower / 2;
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162 eeprom[0] = (byte01 << 8) | byte00;
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163 eeprom[1] = vid;
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164 eeprom[2] = pid;
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165 eeprom[3] = 0x0500;
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166 eeprom[4] = (byte09 << 8) | byte08;
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167 eeprom[5] = byte0A;
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diff changeset
168 eeprom[6] = usb_version;
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169 eeprom[7] = write_string(manuf);
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170 eeprom[8] = write_string(product);
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parents:
diff changeset
171 if (serial)
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172 eeprom[9] = write_string(serial);
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parents:
diff changeset
173 else
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diff changeset
174 eeprom[9] = 0;
43
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
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diff changeset
175 eeprom[10] = eeprom_chip;
31
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176 }
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diff changeset
177
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diff changeset
178 do_checksum()
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diff changeset
179 {
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diff changeset
180 u_short chksum = 0xAAAA;
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parents:
diff changeset
181 unsigned n;
16b625911e19 fteeprom: generalization of previous ee2232 tools
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parents:
diff changeset
182
43
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
Mychaela Falconia <falcon@freecalypso.org>
parents: 34
diff changeset
183 for (n = 0; n < eeprom_size - 1; n++) {
31
16b625911e19 fteeprom: generalization of previous ee2232 tools
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parents:
diff changeset
184 chksum ^= eeprom[n];
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
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diff changeset
185 chksum = (chksum << 1) | (chksum >> 15);
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parents:
diff changeset
186 }
43
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
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diff changeset
187 eeprom[n] = chksum;
31
16b625911e19 fteeprom: generalization of previous ee2232 tools
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parents:
diff changeset
188 }
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parents:
diff changeset
189
16b625911e19 fteeprom: generalization of previous ee2232 tools
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diff changeset
190 emit_output()
16b625911e19 fteeprom: generalization of previous ee2232 tools
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parents:
diff changeset
191 {
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 unsigned n, col;
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193
43
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
Mychaela Falconia <falcon@freecalypso.org>
parents: 34
diff changeset
194 for (n = 0; n < eeprom_size; n++) {
31
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 col = n & 7;
16b625911e19 fteeprom: generalization of previous ee2232 tools
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parents:
diff changeset
196 if (col == 0)
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 printf("%02X:", n * 2);
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 printf(" %04X", eeprom[n]);
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 if (col == 7)
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 putchar('\n');
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 }
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 }
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 main(argc, argv)
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 char **argv;
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 {
43
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
Mychaela Falconia <falcon@freecalypso.org>
parents: 34
diff changeset
207 process_cmdline(argc, argv);
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
Mychaela Falconia <falcon@freecalypso.org>
parents: 34
diff changeset
208 read_config_file();
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
Mychaela Falconia <falcon@freecalypso.org>
parents: 34
diff changeset
209 init_eeprom_size();
ea0b5aed9a9c ftee-gen2232c reworked to support larger EEPROMs
Mychaela Falconia <falcon@freecalypso.org>
parents: 34
diff changeset
210 fill_eeprom();
31
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 do_checksum();
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 emit_output();
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 exit(0);
16b625911e19 fteeprom: generalization of previous ee2232 tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 }