FreeCalypso > hg > fc-usbser-tools

annotate fteeprom/ftee-gen232r.c @ 69:065f68a94b6b

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doc/FTDI-EEPROM-format: beginning of article
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 14 Sep 2023 23:56:25 +0000
parents b2c891299e83
children 957fb6e08577
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
7
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8 extern FILE *open_eeprom_config_file();
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9
0
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10 u_short vid = 0x0403, pid = 0x6001;
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11 char *manuf, *product;
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12 u_char byte00 = 0x00, byte01 = 0x40;
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13 u_char byte08 = 0x80, byte0A = 0x00, byte0B = 0x00;
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14 unsigned maxpower = 90;
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15 u_short usb_version = 0x0200;
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16 u_char cbusconf[5] = {3, 2, 0, 1, 5};
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17
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18 u_short eeprom[64];
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19 unsigned eeprom_string_ptr = 0x0C;
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20
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21 read_config_file(filename)
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22 char *filename;
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23 {
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24 FILE *inf;
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25 char linebuf[1024];
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26 int lineno;
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27 char *cp, *np;
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28
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29 inf = open_eeprom_config_file(filename);
0
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30 if (!inf) {
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31 perror(filename);
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32 exit(1);
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33 }
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34 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) {
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35 cp = index(linebuf, '\n');
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36 if (!cp) {
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37 fprintf(stderr,
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38 "%s line %d: too long or unterminated\n",
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39 filename, lineno);
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40 exit(1);
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41 }
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42 *cp = '\0';
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43 for (cp = linebuf; isspace(*cp); cp++)
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44 ;
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45 if (*cp == '\0' || *cp == '#')
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46 continue;
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47 for (np = cp; *cp && !isspace(*cp); cp++)
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48 ;
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49 if (*cp)
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50 *cp++ = '\0';
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51 while (isspace(*cp))
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52 cp++;
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53 if (*cp == '\0' || *cp == '#') {
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54 fprintf(stderr,
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55 "%s line %d: \"%s\" setting without argument\n",
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56 filename, lineno, np);
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57 exit(1);
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58 }
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59 if (!strcmp(np, "vid"))
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60 vid = strtoul(cp, 0, 16);
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61 else if (!strcmp(np, "pid"))
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62 pid = strtoul(cp, 0, 16);
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63 else if (!strcmp(np, "manuf"))
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64 manuf = strdup(cp);
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65 else if (!strcmp(np, "product"))
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66 product = strdup(cp);
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67 else if (!strcmp(np, "byte00"))
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68 byte00 = strtoul(cp, 0, 16);
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69 else if (!strcmp(np, "byte01"))
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70 byte01 = strtoul(cp, 0, 16);
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71 else if (!strcmp(np, "byte08"))
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72 byte08 = strtoul(cp, 0, 16);
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73 else if (!strcmp(np, "byte0A"))
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74 byte0A = strtoul(cp, 0, 16);
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75 else if (!strcmp(np, "byte0B"))
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76 byte0B = strtoul(cp, 0, 16);
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77 else if (!strcmp(np, "maxpower"))
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78 maxpower = strtoul(cp, 0, 10);
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79 else if (!strcmp(np, "usbver"))
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80 usb_version = strtoul(cp, 0, 16);
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81 else if (!strcmp(np, "cbus0"))
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82 cbusconf[0] = strtoul(cp, 0, 16);
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83 else if (!strcmp(np, "cbus1"))
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84 cbusconf[1] = strtoul(cp, 0, 16);
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85 else if (!strcmp(np, "cbus2"))
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86 cbusconf[2] = strtoul(cp, 0, 16);
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87 else if (!strcmp(np, "cbus3"))
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88 cbusconf[3] = strtoul(cp, 0, 16);
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89 else if (!strcmp(np, "cbus4"))
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90 cbusconf[4] = strtoul(cp, 0, 16);
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91 else {
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92 fprintf(stderr, "%s line %d: unknown \"%s\" setting\n",
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93 filename, lineno, np);
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94 exit(1);
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95 }
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96 }
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97 fclose(inf);
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98 if (!manuf) {
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99 fprintf(stderr, "error: manuf not set in %s\n", filename);
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100 exit(1);
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101 }
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102 if (!product) {
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103 fprintf(stderr, "error: product not set in %s\n", filename);
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104 exit(1);
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105 }
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106 }
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107
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108 write_string(str)
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109 char *str;
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110 {
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111 unsigned longlen, startptr;
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112
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113 if (63 - eeprom_string_ptr < strlen(str) + 1) {
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114 fprintf(stderr, "error: strings are too long\n");
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115 exit(1);
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116 }
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117 longlen = strlen(str) * 2 + 2;
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118 startptr = eeprom_string_ptr;
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119 eeprom[eeprom_string_ptr++] = 0x0300 | longlen;
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120 while (*str)
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121 eeprom[eeprom_string_ptr++] = *str++;
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122 return (longlen << 8) | 0x80 | (startptr << 1);
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diff changeset
123 }
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 fill_eeprom(serial)
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 char *serial;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 {
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 u_char byte09;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 if (serial)
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 byte0A |= 0x08;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 else
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 byte0A &= 0xF7;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 byte09 = maxpower / 2;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 eeprom[0] = (byte01 << 8) | byte00;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 eeprom[1] = vid;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 eeprom[2] = pid;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 eeprom[3] = 0x0600;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 eeprom[4] = (byte09 << 8) | byte08;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 eeprom[5] = (byte0B << 8) | byte0A;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 eeprom[6] = usb_version;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 eeprom[7] = write_string(manuf);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 eeprom[8] = write_string(product);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 if (serial)
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 eeprom[9] = write_string(serial);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 else
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 eeprom[9] = 0;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 eeprom[10] = (cbusconf[3] << 12) | (cbusconf[2] << 8) |
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 (cbusconf[1] << 4) | cbusconf[0];
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 eeprom[11] = cbusconf[4];
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 }
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 do_checksum()
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 {
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 u_short chksum = 0xAAAA;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 unsigned n;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 for (n = 0; n < 63; n++) {
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 chksum ^= eeprom[n];
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 chksum = (chksum << 1) | (chksum >> 15);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 }
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 eeprom[63] = chksum;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 }
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 emit_output()
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 {
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 unsigned n, col;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 for (n = 0; n < 64; n++) {
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 col = n & 7;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 if (col == 0)
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 printf("%02X:", n * 2);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 printf(" %04X", eeprom[n]);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 if (col == 7)
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 putchar('\n');
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 }
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 }
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 main(argc, argv)
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 char **argv;
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 {
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 if (argc < 2 || argc > 3) {
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 fprintf(stderr, "usage: %s config-file [serial-num]\n",
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 argv[0]);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 exit(1);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 }
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 read_config_file(argv[1]);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 fill_eeprom(argv[2]);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 do_checksum();
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 emit_output();
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 exit(0);
11b8a30333b3 fteeprom: initial import from freecalypso-hwlab
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 }