FreeCalypso > hg > freecalypso-hwlab
annotate ee2232/ee2232-gen.c @ 24:94521a02c33d
lcdtest: the truth about Startek and Crystalfontz LCDs
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 14 Apr 2018 06:43:23 +0000 |
parents | 252e3d37b9e5 |
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rev | line source |
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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 |
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8 u_short vid = 0x0403, pid = 0x6010; |
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9 char *manuf, *product; |
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10 u_char byte00 = 0x08, byte01 = 0x08; |
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11 u_char byte08 = 0x80, byte0A = 0x00; |
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12 unsigned maxpower = 100; |
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13 u_short usb_version = 0x0200; |
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14 |
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15 u_short eeprom[64]; |
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16 unsigned eeprom_string_ptr = 0x0B; |
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17 |
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18 read_config_file(filename) |
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19 char *filename; |
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20 { |
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21 FILE *inf; |
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22 char linebuf[1024]; |
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23 int lineno; |
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24 char *cp, *np; |
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25 |
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26 inf = fopen(filename, "r"); |
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27 if (!inf) { |
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28 perror(filename); |
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29 exit(1); |
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30 } |
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31 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) { |
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32 cp = index(linebuf, '\n'); |
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33 if (!cp) { |
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34 fprintf(stderr, |
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35 "%s line %d: too long or unterminated\n", |
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36 filename, lineno); |
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37 exit(1); |
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38 } |
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39 *cp = '\0'; |
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40 for (cp = linebuf; isspace(*cp); cp++) |
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41 ; |
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42 if (*cp == '\0' || *cp == '#') |
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43 continue; |
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44 for (np = cp; *cp && !isspace(*cp); cp++) |
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45 ; |
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46 if (*cp) |
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47 *cp++ = '\0'; |
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48 while (isspace(*cp)) |
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49 cp++; |
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50 if (*cp == '\0' || *cp == '#') { |
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51 fprintf(stderr, |
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52 "%s line %d: \"%s\" setting without argument\n", |
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53 filename, lineno, np); |
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54 exit(1); |
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55 } |
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56 if (!strcmp(np, "vid")) |
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57 vid = strtoul(cp, 0, 16); |
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58 else if (!strcmp(np, "pid")) |
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59 pid = strtoul(cp, 0, 16); |
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60 else if (!strcmp(np, "manuf")) |
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61 manuf = strdup(cp); |
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62 else if (!strcmp(np, "product")) |
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63 product = strdup(cp); |
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64 else if (!strcmp(np, "byte00")) |
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65 byte00 = strtoul(cp, 0, 16); |
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66 else if (!strcmp(np, "byte01")) |
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67 byte01 = strtoul(cp, 0, 16); |
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68 else if (!strcmp(np, "byte08")) |
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69 byte08 = strtoul(cp, 0, 16); |
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70 else if (!strcmp(np, "byte0A")) |
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71 byte0A = strtoul(cp, 0, 16); |
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72 else if (!strcmp(np, "maxpower")) |
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73 maxpower = strtoul(cp, 0, 10); |
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74 else if (!strcmp(np, "usbver")) |
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75 usb_version = strtoul(cp, 0, 16); |
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76 else { |
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77 fprintf(stderr, "%s line %d: unknown \"%s\" setting\n", |
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78 filename, lineno, np); |
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79 exit(1); |
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80 } |
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81 } |
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82 fclose(inf); |
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83 if (!manuf) { |
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84 fprintf(stderr, "error: manuf not set in %s\n", filename); |
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85 exit(1); |
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86 } |
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87 if (!product) { |
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88 fprintf(stderr, "error: product not set in %s\n", filename); |
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89 exit(1); |
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90 } |
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91 } |
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92 |
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93 write_string(str) |
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94 char *str; |
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95 { |
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96 unsigned longlen, startptr; |
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97 |
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98 longlen = strlen(str) * 2 + 2; |
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99 startptr = eeprom_string_ptr; |
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100 eeprom[eeprom_string_ptr++] = 0x0300 | longlen; |
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101 while (*str) |
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102 eeprom[eeprom_string_ptr++] = *str++; |
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103 return (longlen << 8) | 0x80 | (startptr << 1); |
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104 } |
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105 |
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106 fill_eeprom(serial) |
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107 char *serial; |
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108 { |
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109 u_char byte09; |
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110 |
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111 if (serial) |
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112 byte0A |= 0x08; |
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113 else |
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114 byte0A &= 0xF7; |
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115 byte09 = maxpower / 2; |
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116 eeprom[0] = (byte01 << 8) | byte00; |
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117 eeprom[1] = vid; |
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118 eeprom[2] = pid; |
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119 eeprom[3] = 0x0500; |
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120 eeprom[4] = (byte09 << 8) | byte08; |
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121 eeprom[5] = byte0A; |
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122 eeprom[6] = usb_version; |
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123 eeprom[7] = write_string(manuf); |
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124 eeprom[8] = write_string(product); |
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125 if (serial) |
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126 eeprom[9] = write_string(serial); |
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127 else |
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128 eeprom[9] = 0; |
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129 eeprom[10] = 0x46; |
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130 } |
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131 |
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132 do_checksum() |
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133 { |
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134 u_short chksum = 0xAAAA; |
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135 unsigned n; |
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136 |
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137 for (n = 0; n < 63; n++) { |
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138 chksum ^= eeprom[n]; |
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139 chksum = (chksum << 1) | (chksum >> 15); |
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140 } |
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141 eeprom[63] = chksum; |
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142 } |
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143 |
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144 emit_output() |
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145 { |
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146 unsigned n, col; |
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147 |
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148 for (n = 0; n < 64; n++) { |
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149 col = n & 7; |
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150 if (col == 0) |
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151 printf("%02X:", n * 2); |
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152 printf(" %04X", eeprom[n]); |
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153 if (col == 7) |
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154 putchar('\n'); |
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155 } |
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156 } |
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157 |
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158 main(argc, argv) |
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159 char **argv; |
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160 { |
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161 if (argc < 2 || argc > 3) { |
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162 fprintf(stderr, "usage: %s config-file [serial-num]\n", |
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163 argv[0]); |
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164 exit(1); |
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165 } |
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166 read_config_file(argv[1]); |
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167 fill_eeprom(argv[2]); |
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168 do_checksum(); |
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169 emit_output(); |
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170 exit(0); |
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171 } |