ftdi_eeprom/main.c

   1 /***************************************************************************
   2                              main.c  -  description
   3                            -------------------
   4     begin                : Mon Apr  7 12:05:22 CEST 2003
   5     copyright            : (C) 2003-2020 by Intra2net AG and the libftdi developers
   6     email                : opensource@intra2net.com
   7     SPDX-License-Identifier: GPL-2.0-only
   8  ***************************************************************************/
   9
  10 /***************************************************************************
  11  *                                                                         *
  12  *   This program is free software; you can redistribute it and/or modify  *
  13  *   it under the terms of the GNU General Public License version 2 as     *
  14  *   published by the Free Software Foundation.                            *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18 /*
  19  TODO:
  20     - Merge Uwe's eeprom tool. Current features:
  21         - Init eeprom defaults based upon eeprom type
  22         - Read -> Already there
  23         - Write -> Already there
  24         - Erase -> Already there
  25         - Decode on stdout
  26         - Ability to find device by PID/VID, product name or serial
  27
  28  TODO nice-to-have:
  29     - Out-of-the-box compatibility with FTDI's eeprom tool configuration files
  30  */
  31
  32 #ifdef HAVE_CONFIG_H
  33 #include <config.h>
  34 #endif
  35
  36 #include <stdlib.h>
  37 #include <stdio.h>
  38 #include <string.h>
  39 #include <errno.h>
  40 #include <sys/stat.h>
  41
  42 #include <confuse.h>
  43 #include <libusb.h>
  44 #include <ftdi.h>
  45 #include <ftdi_eeprom_version.h>
  46
  47 static int parse_cbus(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
  48 {
  49     static const char* options[] =
  50     {
  51         "TXDEN", "PWREN", "RXLED", "TXLED", "TXRXLED", "SLEEP", "CLK48",
  52         "CLK24", "CLK12", "CLK6", "IOMODE", "BB_WR", "BB_RD"
  53     };
  54
  55     int i;
  56     for (i=0; i<sizeof(options)/sizeof(*options); i++)
  57     {
  58         if (!(strcmp(options[i], value)))
  59         {
  60             *(int *)result = i;
  61             return 0;
  62         }
  63     }
  64
  65     cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
  66     return -1;
  67 }
  68
  69 static int parse_group0_drive(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
  70 {
  71     static const char* options[] =
  72     {
  73         "4MA", "8MA", "12MA", "16MA"
  74     };
  75
  76     int i;
  77     for (i=0; i<sizeof(options)/sizeof(*options); i++)
  78     {
  79         if (!(strcasecmp(options[i], value)))
  80         {
  81             *(int *)result = i;
  82             return 0;
  83         }
  84     }
  85
  86     cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
  87     return -1;
  88 }
  89
  90 static int parse_cbush(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
  91 {
  92     static const char* options[] =
  93     {
  94         "TRISTATE", "TXLED", "RXLED", "TXRXLED", "PWREN", "SLEEP",
  95         "DRIVE_0", "DRIVE1", "IOMODE", "TXDEN", "CLK30", "CLK15", "CLK7_5"
  96     };
  97
  98     int i;
  99     for (i=0; i<sizeof(options)/sizeof(*options); i++)
 100     {
 101         if (!(strcmp(options[i], value)))
 102         {
 103             *(int *)result = i;
 104             return 0;
 105         }
 106     }
 107
 108     cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
 109     return -1;
 110 }
 111
 112 static int parse_cbusx(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
 113 {
 114     static const char* options[] =
 115     {
 116         "TRISTATE", "TXLED", "RXLED", "TXRXLED", "PWREN", "SLEEP",
 117         "DRIVE_0", "DRIVE1", "IOMODE", "TXDEN", "CLK24", "CLK12",
 118         "CLK6", "BAT_DETECT", "BAT_DETECT_NEG", "I2C_TXE", "I2C_RXF", "VBUS_SENSE",
 119         "BB_WR", "BB_RD", "TIME_STAMP", "AWAKE"
 120     };
 121
 122     int i;
 123     for (i=0; i<sizeof(options)/sizeof(*options); i++)
 124     {
 125         if (!(strcmp(options[i], value)))
 126         {
 127             *(int *)result = i;
 128             return 0;
 129         }
 130     }
 131
 132     cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
 133     return -1;
 134 }
 135
 136 static int parse_chtype(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
 137 {
 138     static const struct
 139     {
 140         char* key;
 141         int   opt;
 142     } options[] =
 143     {
 144         { "UART",   CHANNEL_IS_UART },
 145         { "FIFO",   CHANNEL_IS_FIFO },
 146         { "OPTO",   CHANNEL_IS_OPTO },
 147         { "CPU",    CHANNEL_IS_CPU },
 148         { "FT1284", CHANNEL_IS_FT1284}
 149     };
 150
 151     int i;
 152     for (i=0; i<sizeof(options)/sizeof(*options); i++)
 153     {
 154         if (!(strcmp(options[i].key, value)))
 155         {
 156             *(int *)result = options[i].opt;
 157             return 0;
 158         }
 159     }
 160
 161     cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
 162     return -1;
 163 }
 164
 165 /**
 166  * @brief Set eeprom value
 167  *
 168  * \param ftdi pointer to ftdi_context
 169  * \param value_name Enum of the value to set
 170  * \param value Value to set
 171  *
 172  * Function will abort the program on error
 173  **/
 174 static void eeprom_set_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int value)
 175 {
 176     if (ftdi_set_eeprom_value(ftdi, value_name, value) < 0)
 177     {
 178         printf("Unable to set eeprom value %d: %s. Aborting\n", value_name, ftdi_get_error_string(ftdi));
 179         exit (-1);
 180     }
 181 }
 182
 183 /**
 184  * @brief Get eeprom value
 185  *
 186  * \param ftdi pointer to ftdi_context
 187  * \param value_name Enum of the value to get
 188  * \param value Value to get
 189  *
 190  * Function will abort the program on error
 191  **/
 192 static void eeprom_get_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int *value)
 193 {
 194     if (ftdi_get_eeprom_value(ftdi, value_name, value) < 0)
 195     {
 196         printf("Unable to get eeprom value %d: %s. Aborting\n", value_name, ftdi_get_error_string(ftdi));
 197         exit (-1);
 198     }
 199 }
 200
 201 static void usage(const char *program)
 202 {
 203     fprintf(stderr, "Syntax: %s [...options...] <config-file>\n", program);
 204     fprintf(stderr, "Valid Options:\n");
 205     fprintf(stderr, "--device <description>  Specify device to open by description string. One of:\n");
 206     fprintf(stderr, "         d:<device node>\n");
 207     fprintf(stderr, "         i:<vendor>:<product>\n");
 208     fprintf(stderr, "         i:<vendor>:<product>:<index>\n");
 209     fprintf(stderr, "         s:<vendor>:<product>:<serial>\n");
 210     fprintf(stderr, "--read-eeprom           Read eeprom and write to -filename- from config-file\n");
 211     fprintf(stderr, "--build-eeprom          Build eeprom image\n");
 212     fprintf(stderr, "--erase-eeprom          Erase eeprom\n");
 213     fprintf(stderr, "--flash-eeprom          Flash eeprom\n");
 214     fprintf(stderr, "--verbose               Print more information\n");
 215 }
 216
 217 int main(int argc, char *argv[])
 218 {
 219     /*
 220     configuration options
 221     */
 222     cfg_opt_t opts[] =
 223     {
 224         CFG_INT("vendor_id", 0, 0),
 225         CFG_INT("product_id", 0, 0),
 226         CFG_INT("release_number", -1, 0),
 227         CFG_BOOL("self_powered", cfg_true, 0),
 228         CFG_BOOL("remote_wakeup", cfg_true, 0),
 229         CFG_BOOL("in_is_isochronous", cfg_false, 0),
 230         CFG_BOOL("out_is_isochronous", cfg_false, 0),
 231         CFG_BOOL("suspend_pull_downs", cfg_false, 0),
 232         CFG_BOOL("use_serial", cfg_false, 0),
 233         CFG_BOOL("change_usb_version", cfg_false, 0),
 234         CFG_INT("usb_version", 0, 0),
 235         CFG_INT("default_pid", 0x6001, 0),
 236         CFG_INT("max_power", 0, 0),
 237         CFG_STR("manufacturer", "Acme Inc.", 0),
 238         CFG_STR("product", "USB Serial Converter", 0),
 239         CFG_STR("serial", "08-15", 0),
 240         CFG_INT("eeprom_type", 0x00, 0),
 241         CFG_STR("filename", "", 0),
 242         CFG_BOOL("flash_raw", cfg_false, 0),
 243         CFG_BOOL("high_current", cfg_false, 0),
 244         CFG_INT_CB("cbus0", -1, 0, parse_cbus),
 245         CFG_INT_CB("cbus1", -1, 0, parse_cbus),
 246         CFG_INT_CB("cbus2", -1, 0, parse_cbus),
 247         CFG_INT_CB("cbus3", -1, 0, parse_cbus),
 248         CFG_INT_CB("cbus4", -1, 0, parse_cbus),
 249         CFG_INT_CB("cbush0", -1, 0, parse_cbush),
 250         CFG_INT_CB("cbush1", -1, 0, parse_cbush),
 251         CFG_INT_CB("cbush2", -1, 0, parse_cbush),
 252         CFG_INT_CB("cbush3", -1, 0, parse_cbush),
 253         CFG_INT_CB("cbush4", -1, 0, parse_cbush),
 254         CFG_INT_CB("cbush5", -1, 0, parse_cbush),
 255         CFG_INT_CB("cbush6", -1, 0, parse_cbush),
 256         CFG_INT_CB("cbush7", -1, 0, parse_cbush),
 257         CFG_INT_CB("cbush8", -1, 0, parse_cbush),
 258         CFG_INT_CB("cbush9", -1, 0, parse_cbush),
 259         CFG_INT_CB("cbusx0", -1, 0, parse_cbusx),
 260         CFG_INT_CB("cbusx1", -1, 0, parse_cbusx),
 261         CFG_INT_CB("cbusx2", -1, 0, parse_cbusx),
 262         CFG_INT_CB("cbusx3", -1, 0, parse_cbusx),
 263         CFG_INT_CB("group0_drive", -1, 0, parse_group0_drive),
 264         CFG_BOOL("invert_txd", cfg_false, 0),
 265         CFG_BOOL("invert_rxd", cfg_false, 0),
 266         CFG_BOOL("invert_rts", cfg_false, 0),
 267         CFG_BOOL("invert_cts", cfg_false, 0),
 268         CFG_BOOL("invert_dtr", cfg_false, 0),
 269         CFG_BOOL("invert_dsr", cfg_false, 0),
 270         CFG_BOOL("invert_dcd", cfg_false, 0),
 271         CFG_BOOL("invert_ri", cfg_false, 0),
 272         CFG_INT_CB("cha_type", -1, 0, parse_chtype),
 273         CFG_INT_CB("chb_type", -1, 0, parse_chtype),
 274         CFG_BOOL("cha_vcp", cfg_true, 0),
 275         CFG_BOOL("chb_vcp", cfg_true, 0),
 276         CFG_BOOL("chc_vcp", cfg_true, 0),
 277         CFG_BOOL("chd_vcp", cfg_true, 0),
 278         CFG_BOOL("cha_rs485", cfg_false, 0),
 279         CFG_BOOL("chb_rs485", cfg_false, 0),
 280         CFG_BOOL("chc_rs485", cfg_false, 0),
 281         CFG_BOOL("chd_rs485", cfg_false, 0),
 282         CFG_FUNC("include", &cfg_include),
 283         CFG_INT("user_data_addr", 0x18, 0),
 284         CFG_STR("user_data_file", "", 0),
 285         CFG_END()
 286     };
 287     cfg_t *cfg;
 288
 289     /*
 290     normal variables
 291     */
 292     enum {
 293         COMMAND_READ = 1,
 294         COMMAND_ERASE,
 295         COMMAND_FLASH,
 296         COMMAND_BUILD
 297     } command = 0;
 298     const char *cfg_filename = NULL;
 299     const char *device_description = NULL;
 300     const char *user_data_file = NULL;
 301     char *user_data_buffer = NULL;
 302
 303     const int max_eeprom_size = 256;
 304     int my_eeprom_size = 0;
 305     unsigned char *eeprom_buf = NULL;
 306     char *filename;
 307     int size_check;
 308     int i;
 309     FILE *fp;
 310
 311     int verbose=0;
 312
 313     struct ftdi_context *ftdi = NULL;
 314
 315     printf("\nFTDI eeprom generator v%s\n", EEPROM_VERSION_STRING);
 316     printf ("(c) Intra2net AG and the libftdi developers <opensource@intra2net.com>\n");
 317
 318     for (i = 1; i < argc; i++) {
 319         if (*argv[i] != '-')
 320         {
 321             cfg_filename = argv[i];
 322         }
 323         else if (!strcmp(argv[i], "--device"))
 324         {
 325             if (i+1 >= argc)
 326             {
 327                 usage(argv[0]);
 328                 exit(-1);
 329             }
 330             device_description = argv[++i];
 331         }
 332         else if (!strcmp(argv[i], "--read-eeprom"))
 333         {
 334             command = COMMAND_READ;
 335         }
 336         else if (!strcmp(argv[i], "--erase-eeprom"))
 337         {
 338             command = COMMAND_ERASE;
 339         }
 340         else if (!strcmp(argv[i], "--flash-eeprom"))
 341         {
 342             command = COMMAND_FLASH;
 343         }
 344         else if (!strcmp(argv[i], "--build-eeprom"))
 345         {
 346             command = COMMAND_BUILD;
 347         }
 348         else if (!strcmp(argv[i], "--verbose"))
 349         {
 350             verbose = 1;
 351         }
 352         else
 353         {
 354             usage(argv[0]);
 355             exit(-1);
 356         }
 357     }
 358
 359     if (!cfg_filename)
 360     {
 361         usage(argv[0]);
 362         exit(-1);
 363     }
 364
 365     if ((fp = fopen(cfg_filename, "r")) == NULL)
 366     {
 367         printf ("Can't open configuration file\n");
 368         exit (-1);
 369     }
 370     fclose (fp);
 371
 372     cfg = cfg_init(opts, 0);
 373     cfg_parse(cfg, cfg_filename);
 374     filename = cfg_getstr(cfg, "filename");
 375
 376     if (cfg_getbool(cfg, "self_powered") && cfg_getint(cfg, "max_power") > 0)
 377         printf("Hint: Self powered devices should have a max_power setting of 0.\n");
 378
 379     if ((ftdi = ftdi_new()) == 0)
 380     {
 381         fprintf(stderr, "Failed to allocate ftdi structure :%s \n",
 382                 ftdi_get_error_string(ftdi));
 383         return EXIT_FAILURE;
 384     }
 385
 386     if (device_description != NULL)
 387     {
 388         i = ftdi_usb_open_string(ftdi, device_description);
 389
 390         if (i != 0)
 391         {
 392             printf("Unable to find FTDI device with description: %s\n",
 393                    device_description);
 394             printf("Error code: %d (%s)\n", i, ftdi_get_error_string(ftdi));
 395             exit (-1);
 396         }
 397     }
 398     else if (command > 0)
 399     {
 400         int vendor_id = cfg_getint(cfg, "vendor_id");
 401         int product_id = cfg_getint(cfg, "product_id");
 402
 403         i = ftdi_usb_open(ftdi, vendor_id, product_id);
 404
 405         if (i != 0)
 406         {
 407             int default_pid = cfg_getint(cfg, "default_pid");
 408             printf("Unable to find FTDI devices under given vendor/product id: 0x%X/0x%X\n", vendor_id, product_id);
 409             printf("Error code: %d (%s)\n", i, ftdi_get_error_string(ftdi));
 410             printf("Retrying with default FTDI pid=%#04x.\n", default_pid);
 411
 412             i = ftdi_usb_open(ftdi, 0x0403, default_pid);
 413             if (i != 0)
 414             {
 415                 printf("Error: %s\n", ftdi->error_str);
 416                 exit (-1);
 417             }
 418         }
 419     }
 420     ftdi_eeprom_initdefaults (ftdi, cfg_getstr(cfg, "manufacturer"),
 421                               cfg_getstr(cfg, "product"),
 422                               cfg_getstr(cfg, "serial"));
 423
 424     printf("FTDI read eeprom: %d\n", ftdi_read_eeprom(ftdi));
 425     eeprom_get_value(ftdi, CHIP_SIZE, &my_eeprom_size);
 426     printf("EEPROM size: %d\n", my_eeprom_size);
 427
 428     if (command == COMMAND_READ)
 429     {
 430         ftdi_eeprom_decode(ftdi, verbose);
 431
 432         eeprom_buf = malloc(my_eeprom_size);
 433         ftdi_get_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
 434
 435         if (eeprom_buf == NULL)
 436         {
 437             fprintf(stderr, "Malloc failed, aborting\n");
 438             goto cleanup;
 439         }
 440         if (filename != NULL && strlen(filename) > 0)
 441         {
 442             FILE *fp = fopen (filename, "wb");
 443
 444             if(fp)
 445             {
 446                 fwrite(eeprom_buf, 1, my_eeprom_size, fp);
 447                 fclose(fp);
 448             }
 449             else
 450                 fprintf(stderr, "Could not open output file %s: %s\n", filename, strerror(errno));
 451         }
 452         else
 453         {
 454             printf("Warning: Not writing eeprom, you must supply a valid filename\n");
 455         }
 456
 457         goto cleanup;
 458     }
 459
 460     eeprom_set_value(ftdi, VENDOR_ID, cfg_getint(cfg, "vendor_id"));
 461     eeprom_set_value(ftdi, PRODUCT_ID, cfg_getint(cfg, "product_id"));
 462
 463     if (cfg_getint(cfg, "release_number") != -1) {
 464         eeprom_set_value(ftdi, RELEASE_NUMBER, cfg_getint(cfg, "release_number"));
 465     }
 466
 467     eeprom_set_value(ftdi, SELF_POWERED, cfg_getbool(cfg, "self_powered"));
 468     eeprom_set_value(ftdi, REMOTE_WAKEUP, cfg_getbool(cfg, "remote_wakeup"));
 469     eeprom_set_value(ftdi, MAX_POWER, cfg_getint(cfg, "max_power"));
 470
 471     eeprom_set_value(ftdi, IN_IS_ISOCHRONOUS, cfg_getbool(cfg, "in_is_isochronous"));
 472     eeprom_set_value(ftdi, OUT_IS_ISOCHRONOUS, cfg_getbool(cfg, "out_is_isochronous"));
 473     eeprom_set_value(ftdi, SUSPEND_PULL_DOWNS, cfg_getbool(cfg, "suspend_pull_downs"));
 474
 475     eeprom_set_value(ftdi, USE_SERIAL, cfg_getbool(cfg, "use_serial"));
 476     eeprom_set_value(ftdi, USE_USB_VERSION, cfg_getbool(cfg, "change_usb_version"));
 477     eeprom_set_value(ftdi, USB_VERSION, cfg_getint(cfg, "usb_version"));
 478     eeprom_set_value(ftdi, CHIP_TYPE, cfg_getint(cfg, "eeprom_type"));
 479
 480     eeprom_set_value(ftdi, HIGH_CURRENT, cfg_getbool(cfg, "high_current"));
 481
 482     if (ftdi->type == TYPE_R)
 483     {
 484         if (cfg_getint(cfg, "cbus0") != -1)
 485             eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbus0"));
 486         if (cfg_getint(cfg, "cbus1") != -1)
 487             eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbus1"));
 488         if (cfg_getint(cfg, "cbus2") != -1)
 489             eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbus2"));
 490         if (cfg_getint(cfg, "cbus3") != -1)
 491             eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbus3"));
 492         if (cfg_getint(cfg, "cbus4") != -1)
 493             eeprom_set_value(ftdi, CBUS_FUNCTION_4, cfg_getint(cfg, "cbus4"));
 494     }
 495     else if (ftdi->type == TYPE_232H)
 496     {
 497         if (cfg_getint(cfg, "cbush0") != -1)
 498             eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbush0"));
 499         if (cfg_getint(cfg, "cbush1") != -1)
 500             eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbush1"));
 501         if (cfg_getint(cfg, "cbush2") != -1)
 502             eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbush2"));
 503         if (cfg_getint(cfg, "cbush3") != -1)
 504             eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbush3"));
 505         if (cfg_getint(cfg, "cbush4") != -1)
 506             eeprom_set_value(ftdi, CBUS_FUNCTION_4, cfg_getint(cfg, "cbush4"));
 507         if (cfg_getint(cfg, "cbush5") != -1)
 508             eeprom_set_value(ftdi, CBUS_FUNCTION_5, cfg_getint(cfg, "cbush5"));
 509         if (cfg_getint(cfg, "cbush6") != -1)
 510             eeprom_set_value(ftdi, CBUS_FUNCTION_6, cfg_getint(cfg, "cbush6"));
 511         if (cfg_getint(cfg, "cbush7") != -1)
 512             eeprom_set_value(ftdi, CBUS_FUNCTION_7, cfg_getint(cfg, "cbush7"));
 513         if (cfg_getint(cfg, "cbush8") != -1)
 514             eeprom_set_value(ftdi, CBUS_FUNCTION_8, cfg_getint(cfg, "cbush8"));
 515         if (cfg_getint(cfg, "cbush9") != -1)
 516             eeprom_set_value(ftdi, CBUS_FUNCTION_9, cfg_getint(cfg, "cbush9"));
 517         if (cfg_getint(cfg, "group0_drive") != -1)
 518             eeprom_set_value(ftdi, GROUP0_DRIVE, cfg_getint(cfg, "group0_drive"));
 519     }
 520     else if (ftdi->type == TYPE_230X)
 521     {
 522         if (cfg_getint(cfg, "cbusx0") != -1)
 523             eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbusx0"));
 524         if (cfg_getint(cfg, "cbusx1") != -1)
 525             eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbusx1"));
 526         if (cfg_getint(cfg, "cbusx2") != -1)
 527             eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbusx2"));
 528         if (cfg_getint(cfg, "cbusx3") != -1)
 529             eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbusx3"));
 530     }
 531
 532     int invert = 0;
 533     if (cfg_getbool(cfg, "invert_rxd")) invert |= INVERT_RXD;
 534     if (cfg_getbool(cfg, "invert_txd")) invert |= INVERT_TXD;
 535     if (cfg_getbool(cfg, "invert_rts")) invert |= INVERT_RTS;
 536     if (cfg_getbool(cfg, "invert_cts")) invert |= INVERT_CTS;
 537     if (cfg_getbool(cfg, "invert_dtr")) invert |= INVERT_DTR;
 538     if (cfg_getbool(cfg, "invert_dsr")) invert |= INVERT_DSR;
 539     if (cfg_getbool(cfg, "invert_dcd")) invert |= INVERT_DCD;
 540     if (cfg_getbool(cfg, "invert_ri")) invert |= INVERT_RI;
 541     eeprom_set_value(ftdi, INVERT, invert);
 542
 543     if (cfg_getint(cfg, "cha_type") != -1)
 544         eeprom_set_value(ftdi, CHANNEL_A_TYPE, cfg_getint(cfg, "cha_type"));
 545     if (cfg_getint(cfg, "chb_type") != -1)
 546         eeprom_set_value(ftdi, CHANNEL_B_TYPE, cfg_getint(cfg, "chb_type"));
 547
 548     eeprom_set_value(ftdi, CHANNEL_A_DRIVER,
 549                      cfg_getbool(cfg, "cha_vcp") ? DRIVER_VCP : 0);
 550     eeprom_set_value(ftdi, CHANNEL_B_DRIVER,
 551                      cfg_getbool(cfg, "chb_vcp") ? DRIVER_VCP : 0);
 552     eeprom_set_value(ftdi, CHANNEL_C_DRIVER,
 553                      cfg_getbool(cfg, "chc_vcp") ? DRIVER_VCP : 0);
 554     eeprom_set_value(ftdi, CHANNEL_D_DRIVER,
 555                      cfg_getbool(cfg, "chd_vcp") ? DRIVER_VCP : 0);
 556
 557     eeprom_set_value(ftdi, CHANNEL_A_RS485, cfg_getbool(cfg, "cha_rs485"));
 558     eeprom_set_value(ftdi, CHANNEL_B_RS485, cfg_getbool(cfg, "chb_rs485"));
 559     eeprom_set_value(ftdi, CHANNEL_C_RS485, cfg_getbool(cfg, "chc_rs485"));
 560     eeprom_set_value(ftdi, CHANNEL_D_RS485, cfg_getbool(cfg, "chd_rs485"));
 561
 562     /* Arbitrary user data */
 563     eeprom_set_value(ftdi, USER_DATA_ADDR, cfg_getint(cfg, "user_data_addr"));
 564     user_data_file = cfg_getstr(cfg, "user_data_file");
 565     if (user_data_file && strlen(user_data_file) > 0)
 566     {
 567         int data_size;
 568         struct stat st;
 569
 570         printf("User data file: %s\n", user_data_file);
 571         /* Allocate a buffer for the user data */
 572         user_data_buffer = (char *)malloc(max_eeprom_size);
 573         if (user_data_buffer == NULL)
 574         {
 575             fprintf(stderr, "Malloc failed, aborting\n");
 576             goto cleanup;
 577         }
 578
 579         if (stat(user_data_file, &st))
 580         {
 581             printf ("Can't stat user data file %s.\n", user_data_file);
 582             exit (-1);
 583         }
 584         if (st.st_size > max_eeprom_size)
 585             printf("Warning: %s is too big, only reading %d bytes\n",
 586                    user_data_file, max_eeprom_size);
 587         /* Read the user data file, no more than max_eeprom_size bytes */
 588         FILE *fp = fopen(user_data_file, "rb");
 589         if (fp == NULL)
 590         {
 591             printf ("Can't open user data file %s.\n", user_data_file);
 592             exit (-1);
 593         }
 594         data_size = fread(user_data_buffer, 1, max_eeprom_size, fp);
 595         fclose(fp);
 596         if (data_size < 1)
 597         {
 598             printf ("Can't read user data file %s.\n", user_data_file);
 599             exit (-1);
 600         }
 601         printf("User data size: %d\n", data_size);
 602
 603         ftdi_set_eeprom_user_data(ftdi, user_data_buffer, data_size);
 604     }
 605
 606
 607     if (command == COMMAND_ERASE)
 608     {
 609         printf("FTDI erase eeprom: %d\n", ftdi_erase_eeprom(ftdi));
 610     }
 611
 612     size_check = ftdi_eeprom_build(ftdi);
 613     eeprom_get_value(ftdi, CHIP_SIZE, &my_eeprom_size);
 614
 615     if (size_check == -1)
 616     {
 617         printf ("Sorry, the eeprom can only contain %d bytes.\n", my_eeprom_size);
 618         goto cleanup;
 619     }
 620     else if (size_check < 0)
 621     {
 622         printf ("ftdi_eeprom_build(): error: %d\n", size_check);
 623         goto cleanup;
 624     }
 625     else
 626     {
 627         printf ("Used eeprom space: %d bytes\n", my_eeprom_size-size_check);
 628     }
 629
 630     if (command == COMMAND_FLASH)
 631     {
 632         if (cfg_getbool(cfg, "flash_raw"))
 633         {
 634             if (filename != NULL && strlen(filename) > 0)
 635             {
 636                 eeprom_buf = malloc(max_eeprom_size);
 637                 FILE *fp = fopen(filename, "rb");
 638                 if (fp == NULL)
 639                 {
 640                     printf ("Can't open eeprom file %s.\n", filename);
 641                     exit (-1);
 642                 }
 643                 my_eeprom_size = fread(eeprom_buf, 1, max_eeprom_size, fp);
 644                 fclose(fp);
 645                 if (my_eeprom_size < 128)
 646                 {
 647                     printf ("Can't read eeprom file %s.\n", filename);
 648                     exit (-1);
 649                 }
 650
 651                 printf("Flashing raw eeprom from file %s (%d bytes)\n",
 652                        filename, my_eeprom_size);
 653
 654                 ftdi_set_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
 655             } else
 656             {
 657                 printf ("ERROR: flash_raw mode enabled, but no eeprom filename "
 658                         "given in config file.\n");
 659                 exit (-1);
 660             }
 661         }
 662         printf ("FTDI write eeprom: %d\n", ftdi_write_eeprom(ftdi));
 663         libusb_reset_device(ftdi->usb_dev);
 664     }
 665
 666     // Write to file?
 667     if (filename != NULL && strlen(filename) > 0 && !cfg_getbool(cfg, "flash_raw"))
 668     {
 669         fp = fopen(filename, "w");
 670         if (fp == NULL)
 671         {
 672             printf ("Can't write eeprom file.\n");
 673             exit (-1);
 674         }
 675         else
 676             printf ("Writing to file: %s\n", filename);
 677
 678         if (eeprom_buf == NULL)
 679             eeprom_buf = malloc(my_eeprom_size);
 680         ftdi_get_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
 681
 682         fwrite(eeprom_buf, my_eeprom_size, 1, fp);
 683         fclose(fp);
 684     }
 685
 686 cleanup:
 687     if (eeprom_buf)
 688         free(eeprom_buf);
 689     if (user_data_buffer)
 690         free(user_data_buffer);
 691     if (command > 0)
 692     {
 693         printf("FTDI close: %d\n", ftdi_usb_close(ftdi));
 694     }
 695
 696     ftdi_deinit (ftdi);
 697     ftdi_free (ftdi);
 698
 699     cfg_free(cfg);
 700
 701     printf("\n");
 702     return 0;
 703 }