[libftdi] / ftdi_eeprom / main.c

/***************************************************************************
                             main.c  -  description
                           -------------------
    begin                : Mon Apr  7 12:05:22 CEST 2003
    copyright            : (C) 2003-2014 by Intra2net AG and the libftdi developers
    email                : opensource@intra2net.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License version 2 as     *
 *   published by the Free Software Foundation.                            *
 *                                                                         *
 ***************************************************************************/

/*
 TODO:
    - Merge Uwe's eeprom tool. Current features:
        - Init eeprom defaults based upon eeprom type
        - Read -> Already there
        - Write -> Already there
        - Erase -> Already there
        - Decode on stdout
        - Ability to find device by PID/VID, product name or serial

 TODO nice-to-have:
    - Out-of-the-box compatibility with FTDI's eeprom tool configuration files
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/stat.h>

#include <confuse.h>
#include <libusb.h>
#include <ftdi.h>
#include <ftdi_eeprom_version.h>

static int parse_cbus(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
{
    static const char* options[] =
    {
        "TXDEN", "PWREN", "RXLED", "TXLED", "TXRXLED", "SLEEP", "CLK48",
        "CLK24", "CLK12", "CLK6", "IOMODE", "BB_WR", "BB_RD"
    };

    int i;
    for (i=0; i<sizeof(options)/sizeof(*options); i++)
    {
        if (!(strcmp(options[i], value)))
        {
            *(int *)result = i;
            return 0;
        }
    }

    cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
    return -1;
}

static int parse_cbush(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
{
    static const char* options[] =
    {
        "TRISTATE", "TXLED", "RXLED", "TXRXLED", "PWREN", "SLEEP",
        "DRIVE_0", "DRIVE1", "IOMODE", "TXDEN", "CLK30", "CLK15", "CLK7_5"
    };

    int i;
    for (i=0; i<sizeof(options)/sizeof(*options); i++)
    {
        if (!(strcmp(options[i], value)))
        {
            *(int *)result = i;
            return 0;
        }
    }

    cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
    return -1;
}

static int parse_cbusx(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
{
    static const char* options[] =
    {
        "TRISTATE", "TXLED", "RXLED", "TXRXLED", "PWREN", "SLEEP",
        "DRIVE_0", "DRIVE1", "IOMODE", "TXDEN", "CLK24", "CLK12",
        "CLK6", "BAT_DETECT", "BAT_DETECT_NEG", "I2C_TXE", "I2C_RXF", "VBUS_SENSE",
        "BB_WR", "BB_RD", "TIME_STAMP", "AWAKE"
    };

    int i;
    for (i=0; i<sizeof(options)/sizeof(*options); i++)
    {
        if (!(strcmp(options[i], value)))
        {
            *(int *)result = i;
            return 0;
        }
    }

    cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
    return -1;
}

static int parse_chtype(cfg_t *cfg, cfg_opt_t *opt, const char *value, void *result)
{
    static const struct
    {
        char* key;
	int   opt;
    } options[] =
    {
        { "UART",   CHANNEL_IS_UART },
        { "FIFO",   CHANNEL_IS_FIFO },
        { "OPTO",   CHANNEL_IS_OPTO },
        { "CPU",    CHANNEL_IS_CPU },
        { "FT1284", CHANNEL_IS_FT1284}
    };

    int i;
    for (i=0; i<sizeof(options)/sizeof(*options); i++)
    {
        if (!(strcmp(options[i].key, value)))
        {
            *(int *)result = options[i].opt;
            return 0;
        }
    }

    cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
    return -1;
}

/**
 * @brief Set eeprom value
 *
 * \param ftdi pointer to ftdi_context
 * \param value_name Enum of the value to set
 * \param value Value to set
 *
 * Function will abort the program on error
 **/
static void eeprom_set_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int value)
{
    if (ftdi_set_eeprom_value(ftdi, value_name, value) < 0)
    {
        printf("Unable to set eeprom value %d: %s. Aborting\n", value_name, ftdi_get_error_string(ftdi));
        exit (-1);
    }
}

/**
 * @brief Get eeprom value
 *
 * \param ftdi pointer to ftdi_context
 * \param value_name Enum of the value to get
 * \param value Value to get
 *
 * Function will abort the program on error
 **/
static void eeprom_get_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int *value)
{
    if (ftdi_get_eeprom_value(ftdi, value_name, value) < 0)
    {
        printf("Unable to get eeprom value %d: %s. Aborting\n", value_name, ftdi_get_error_string(ftdi));
        exit (-1);
    }
}

static void usage(const char *program)
{
    fprintf(stderr, "Syntax: %s [...options...] <config-file>\n", program);
    fprintf(stderr, "Valid Options:\n");
    fprintf(stderr, "--device <description>  Specify device to open by description string. One of:\n");
    fprintf(stderr, "         d:<devicenode>\n");
    fprintf(stderr, "         i:<vendor>:<product>\n");
    fprintf(stderr, "         i:<vendor>:<product>:<index>\n");
    fprintf(stderr, "         s:<vendor>:<product>:<serial>\n");
    fprintf(stderr, "--read-eeprom           Read eeprom and write to -filename- from config-file\n");
    fprintf(stderr, "--build-eeprom          Build eeprom image\n");
    fprintf(stderr, "--erase-eeprom          Erase eeprom\n");
    fprintf(stderr, "--flash-eeprom          Flash eeprom\n");
}

int main(int argc, char *argv[])
{
    /*
    configuration options
    */
    cfg_opt_t opts[] =
    {
        CFG_INT("vendor_id", 0, 0),
        CFG_INT("product_id", 0, 0),
        CFG_BOOL("self_powered", cfg_true, 0),
        CFG_BOOL("remote_wakeup", cfg_true, 0),
        CFG_BOOL("in_is_isochronous", cfg_false, 0),
        CFG_BOOL("out_is_isochronous", cfg_false, 0),
        CFG_BOOL("suspend_pull_downs", cfg_false, 0),
        CFG_BOOL("use_serial", cfg_false, 0),
        CFG_BOOL("change_usb_version", cfg_false, 0),
        CFG_INT("usb_version", 0, 0),
        CFG_INT("default_pid", 0x6001, 0),
        CFG_INT("max_power", 0, 0),
        CFG_STR("manufacturer", "Acme Inc.", 0),
        CFG_STR("product", "USB Serial Converter", 0),
        CFG_STR("serial", "08-15", 0),
        CFG_INT("eeprom_type", 0x00, 0),
        CFG_STR("filename", "", 0),
        CFG_BOOL("flash_raw", cfg_false, 0),
        CFG_BOOL("high_current", cfg_false, 0),
        CFG_INT_CB("cbus0", -1, 0, parse_cbus),
        CFG_INT_CB("cbus1", -1, 0, parse_cbus),
        CFG_INT_CB("cbus2", -1, 0, parse_cbus),
        CFG_INT_CB("cbus3", -1, 0, parse_cbus),
        CFG_INT_CB("cbus4", -1, 0, parse_cbus),
        CFG_INT_CB("cbush0", -1, 0, parse_cbush),
        CFG_INT_CB("cbush1", -1, 0, parse_cbush),
        CFG_INT_CB("cbush2", -1, 0, parse_cbush),
        CFG_INT_CB("cbush3", -1, 0, parse_cbush),
        CFG_INT_CB("cbush4", -1, 0, parse_cbush),
        CFG_INT_CB("cbush5", -1, 0, parse_cbush),
        CFG_INT_CB("cbush6", -1, 0, parse_cbush),
        CFG_INT_CB("cbush7", -1, 0, parse_cbush),
        CFG_INT_CB("cbush8", -1, 0, parse_cbush),
        CFG_INT_CB("cbush9", -1, 0, parse_cbush),
        CFG_INT_CB("cbusx0", -1, 0, parse_cbusx),
        CFG_INT_CB("cbusx1", -1, 0, parse_cbusx),
        CFG_INT_CB("cbusx2", -1, 0, parse_cbusx),
        CFG_INT_CB("cbusx3", -1, 0, parse_cbusx),
        CFG_BOOL("invert_txd", cfg_false, 0),
        CFG_BOOL("invert_rxd", cfg_false, 0),
        CFG_BOOL("invert_rts", cfg_false, 0),
        CFG_BOOL("invert_cts", cfg_false, 0),
        CFG_BOOL("invert_dtr", cfg_false, 0),
        CFG_BOOL("invert_dsr", cfg_false, 0),
        CFG_BOOL("invert_dcd", cfg_false, 0),
        CFG_BOOL("invert_ri", cfg_false, 0),
        CFG_INT_CB("cha_type", -1, 0, parse_chtype),
        CFG_INT_CB("chb_type", -1, 0, parse_chtype),
        CFG_BOOL("cha_vcp", cfg_true, 0),
        CFG_BOOL("chb_vcp", cfg_true, 0),
        CFG_BOOL("chc_vcp", cfg_true, 0),
        CFG_BOOL("chd_vcp", cfg_true, 0),
        CFG_BOOL("cha_rs485", cfg_false, 0),
        CFG_BOOL("chb_rs485", cfg_false, 0),
        CFG_BOOL("chc_rs485", cfg_false, 0),
        CFG_BOOL("chd_rs485", cfg_false, 0),
        CFG_FUNC("include", &cfg_include),
        CFG_INT("user_data_addr", 0x18, 0),
        CFG_STR("user_data_file", "", 0),
        CFG_END()
    };
    cfg_t *cfg;

    /*
    normal variables
    */
    enum {
        COMMAND_READ = 1,
        COMMAND_ERASE,
        COMMAND_FLASH,
        COMMAND_BUILD
    } command = 0;
    const char *cfg_filename = NULL;
    const char *device_description = NULL;
    const char *user_data_file = NULL;
    char *user_data_buffer = NULL;

    const int max_eeprom_size = 256;
    int my_eeprom_size = 0;
    unsigned char *eeprom_buf = NULL;
    char *filename;
    int size_check;
    int i;
    FILE *fp;

    struct ftdi_context *ftdi = NULL;

    printf("\nFTDI eeprom generator v%s\n", EEPROM_VERSION_STRING);
    printf ("(c) Intra2net AG and the libftdi developers <opensource@intra2net.com>\n");

    for (i = 1; i < argc; i++) {
        if (*argv[i] != '-')
        {
            cfg_filename = argv[i];
        }
        else if (!strcmp(argv[i], "--device"))
        {
            if (i+1 >= argc)
            {
                usage(argv[0]);
                exit(-1);
            }
            device_description = argv[++i];
        }
        else if (!strcmp(argv[i], "--read-eeprom"))
        {
            command = COMMAND_READ;
        }
        else if (!strcmp(argv[i], "--erase-eeprom"))
        {
            command = COMMAND_ERASE;
        }
        else if (!strcmp(argv[i], "--flash-eeprom"))
        {
            command = COMMAND_FLASH;
        }
        else if (!strcmp(argv[i], "--build-eeprom"))
        {
            command = COMMAND_BUILD;
        }
        else
        {
            usage(argv[0]);
            exit(-1);
        }
    }

    if (!cfg_filename)
    {
        usage(argv[0]);
        exit(-1);
    }

    if ((fp = fopen(cfg_filename, "r")) == NULL)
    {
        printf ("Can't open configuration file\n");
        exit (-1);
    }
    fclose (fp);

    cfg = cfg_init(opts, 0);
    cfg_parse(cfg, cfg_filename);
    filename = cfg_getstr(cfg, "filename");

    if (cfg_getbool(cfg, "self_powered") && cfg_getint(cfg, "max_power") > 0)
        printf("Hint: Self powered devices should have a max_power setting of 0.\n");

    if ((ftdi = ftdi_new()) == 0)
    {
        fprintf(stderr, "Failed to allocate ftdi structure :%s \n",
                ftdi_get_error_string(ftdi));
        return EXIT_FAILURE;
    }

    if (device_description != NULL)
    {
        i = ftdi_usb_open_string(ftdi, device_description);

        if (i != 0)
        {
            printf("Unable to find FTDI device with description: %s\n",
                   device_description);
            printf("Error code: %d (%s)\n", i, ftdi_get_error_string(ftdi));
            exit (-1);
        }
    }
    else if (command > 0)
    {
        int vendor_id = cfg_getint(cfg, "vendor_id");
        int product_id = cfg_getint(cfg, "product_id");

        i = ftdi_usb_open(ftdi, vendor_id, product_id);

        if (i != 0)
        {
            int default_pid = cfg_getint(cfg, "default_pid");
            printf("Unable to find FTDI devices under given vendor/product id: 0x%X/0x%X\n", vendor_id, product_id);
            printf("Error code: %d (%s)\n", i, ftdi_get_error_string(ftdi));
            printf("Retrying with default FTDI pid=%#04x.\n", default_pid);

            i = ftdi_usb_open(ftdi, 0x0403, default_pid);
            if (i != 0)
            {
                printf("Error: %s\n", ftdi->error_str);
                exit (-1);
            }
        }
    }
    ftdi_eeprom_initdefaults (ftdi, cfg_getstr(cfg, "manufacturer"),
                              cfg_getstr(cfg, "product"),
                              cfg_getstr(cfg, "serial"));

    printf("FTDI read eeprom: %d\n", ftdi_read_eeprom(ftdi));
    eeprom_get_value(ftdi, CHIP_SIZE, &my_eeprom_size);
    printf("EEPROM size: %d\n", my_eeprom_size);

    if (command == COMMAND_READ)
    {
        ftdi_eeprom_decode(ftdi, 0 /* debug: 1 */);

        eeprom_buf = malloc(my_eeprom_size);
        ftdi_get_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);

        if (eeprom_buf == NULL)
        {
            fprintf(stderr, "Malloc failed, aborting\n");
            goto cleanup;
        }
        if (filename != NULL && strlen(filename) > 0)
        {
            FILE *fp = fopen (filename, "wb");
            
            if(fp)
            {
                fwrite(eeprom_buf, 1, my_eeprom_size, fp);
                fclose(fp);
            }
            else
                fprintf(stderr, "Could not open output file %s: %s\n", filename, strerror(errno));
        }
        else
        {
            printf("Warning: Not writing eeprom, you must supply a valid filename\n");
        }

        goto cleanup;
    }

    eeprom_set_value(ftdi, VENDOR_ID, cfg_getint(cfg, "vendor_id"));
    eeprom_set_value(ftdi, PRODUCT_ID, cfg_getint(cfg, "product_id"));

    eeprom_set_value(ftdi, SELF_POWERED, cfg_getbool(cfg, "self_powered"));
    eeprom_set_value(ftdi, REMOTE_WAKEUP, cfg_getbool(cfg, "remote_wakeup"));
    eeprom_set_value(ftdi, MAX_POWER, cfg_getint(cfg, "max_power"));

    eeprom_set_value(ftdi, IN_IS_ISOCHRONOUS, cfg_getbool(cfg, "in_is_isochronous"));
    eeprom_set_value(ftdi, OUT_IS_ISOCHRONOUS, cfg_getbool(cfg, "out_is_isochronous"));
    eeprom_set_value(ftdi, SUSPEND_PULL_DOWNS, cfg_getbool(cfg, "suspend_pull_downs"));

    eeprom_set_value(ftdi, USE_SERIAL, cfg_getbool(cfg, "use_serial"));
    eeprom_set_value(ftdi, USE_USB_VERSION, cfg_getbool(cfg, "change_usb_version"));
    eeprom_set_value(ftdi, USB_VERSION, cfg_getint(cfg, "usb_version"));
    eeprom_set_value(ftdi, CHIP_TYPE, cfg_getint(cfg, "eeprom_type"));

    eeprom_set_value(ftdi, HIGH_CURRENT, cfg_getbool(cfg, "high_current"));

    if (ftdi->type == TYPE_R)
    {
        if (cfg_getint(cfg, "cbus0") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbus0"));
        if (cfg_getint(cfg, "cbus1") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbus1"));
        if (cfg_getint(cfg, "cbus2") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbus2"));
        if (cfg_getint(cfg, "cbus3") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbus3"));
        if (cfg_getint(cfg, "cbus4") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_4, cfg_getint(cfg, "cbus4"));
    }
    else if (ftdi->type == TYPE_232H)
    {
        if (cfg_getint(cfg, "cbush0") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbush0"));
        if (cfg_getint(cfg, "cbush1") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbush1"));
        if (cfg_getint(cfg, "cbush2") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbush2"));
        if (cfg_getint(cfg, "cbush3") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbush3"));
        if (cfg_getint(cfg, "cbush4") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_4, cfg_getint(cfg, "cbush4"));
        if (cfg_getint(cfg, "cbush5") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_5, cfg_getint(cfg, "cbush5"));
        if (cfg_getint(cfg, "cbush6") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_6, cfg_getint(cfg, "cbush6"));
        if (cfg_getint(cfg, "cbush7") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_7, cfg_getint(cfg, "cbush7"));
        if (cfg_getint(cfg, "cbush8") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_8, cfg_getint(cfg, "cbush8"));
        if (cfg_getint(cfg, "cbush9") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_9, cfg_getint(cfg, "cbush9"));
    }
    else if (ftdi->type == TYPE_230X)
    {
        if (cfg_getint(cfg, "cbusx0") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbusx0"));
        if (cfg_getint(cfg, "cbusx1") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbusx1"));
        if (cfg_getint(cfg, "cbusx2") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbusx2"));
        if (cfg_getint(cfg, "cbusx3") != -1)
            eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbusx3"));
    }

    int invert = 0;
    if (cfg_getbool(cfg, "invert_rxd")) invert |= INVERT_RXD;
    if (cfg_getbool(cfg, "invert_txd")) invert |= INVERT_TXD;
    if (cfg_getbool(cfg, "invert_rts")) invert |= INVERT_RTS;
    if (cfg_getbool(cfg, "invert_cts")) invert |= INVERT_CTS;
    if (cfg_getbool(cfg, "invert_dtr")) invert |= INVERT_DTR;
    if (cfg_getbool(cfg, "invert_dsr")) invert |= INVERT_DSR;
    if (cfg_getbool(cfg, "invert_dcd")) invert |= INVERT_DCD;
    if (cfg_getbool(cfg, "invert_ri")) invert |= INVERT_RI;
    eeprom_set_value(ftdi, INVERT, invert);

    if (cfg_getint(cfg, "cha_type") != -1)
        eeprom_set_value(ftdi, CHANNEL_A_TYPE, cfg_getint(cfg, "cha_type"));
    if (cfg_getint(cfg, "chb_type") != -1)
        eeprom_set_value(ftdi, CHANNEL_B_TYPE, cfg_getint(cfg, "chb_type"));

    eeprom_set_value(ftdi, CHANNEL_A_DRIVER,
                     cfg_getbool(cfg, "cha_vcp") ? DRIVER_VCP : 0);
    eeprom_set_value(ftdi, CHANNEL_B_DRIVER,
                     cfg_getbool(cfg, "chb_vcp") ? DRIVER_VCP : 0);
    eeprom_set_value(ftdi, CHANNEL_C_DRIVER,
                     cfg_getbool(cfg, "chc_vcp") ? DRIVER_VCP : 0);
    eeprom_set_value(ftdi, CHANNEL_D_DRIVER,
                     cfg_getbool(cfg, "chd_vcp") ? DRIVER_VCP : 0);

    eeprom_set_value(ftdi, CHANNEL_A_RS485, cfg_getbool(cfg, "cha_rs485"));
    eeprom_set_value(ftdi, CHANNEL_B_RS485, cfg_getbool(cfg, "chb_rs485"));
    eeprom_set_value(ftdi, CHANNEL_C_RS485, cfg_getbool(cfg, "chc_rs485"));
    eeprom_set_value(ftdi, CHANNEL_D_RS485, cfg_getbool(cfg, "chd_rs485"));

    /* Arbitrary user data */
    eeprom_set_value(ftdi, USER_DATA_ADDR, cfg_getint(cfg, "user_data_addr"));
    user_data_file = cfg_getstr(cfg, "user_data_file");
    if (user_data_file && strlen(user_data_file) > 0)
    {
        int data_size;
        struct stat st;

        printf("User data file: %s\n", user_data_file);
        /* Allocate a buffer for the user data */
        user_data_buffer = (char *)malloc(max_eeprom_size);
        if (user_data_buffer == NULL)
        {
            fprintf(stderr, "Malloc failed, aborting\n");
            goto cleanup;
        }

        if (stat(user_data_file, &st))
        {
            printf ("Can't stat user data file %s.\n", user_data_file);
            exit (-1);
        }
        if (st.st_size > max_eeprom_size)
            printf("Warning: %s is too big, only reading %d bytes\n",
                   user_data_file, max_eeprom_size);
        /* Read the user data file, no more than max_eeprom_size bytes */
        FILE *fp = fopen(user_data_file, "rb");
        if (fp == NULL)
        {
            printf ("Can't open user data file %s.\n", user_data_file);
            exit (-1);
        }
        data_size = fread(user_data_buffer, 1, max_eeprom_size, fp);
        fclose(fp);
        if (data_size < 1)
        {
            printf ("Can't read user data file %s.\n", user_data_file);
            exit (-1);
        }
        printf("User data size: %d\n", data_size);

        ftdi_set_eeprom_user_data(ftdi, user_data_buffer, data_size);
    }


    if (command == COMMAND_ERASE)
    {
        printf("FTDI erase eeprom: %d\n", ftdi_erase_eeprom(ftdi));
    }

    size_check = ftdi_eeprom_build(ftdi);
    eeprom_get_value(ftdi, CHIP_SIZE, &my_eeprom_size);

    if (size_check == -1)
    {
        printf ("Sorry, the eeprom can only contain %d bytes.\n", my_eeprom_size);
        goto cleanup;
    }
    else if (size_check < 0)
    {
        printf ("ftdi_eeprom_build(): error: %d\n", size_check);
        goto cleanup;
    }
    else
    {
        printf ("Used eeprom space: %d bytes\n", my_eeprom_size-size_check);
    }

    if (command == COMMAND_FLASH)
    {
        if (cfg_getbool(cfg, "flash_raw"))
        {
            if (filename != NULL && strlen(filename) > 0)
            {
                eeprom_buf = malloc(max_eeprom_size);
                FILE *fp = fopen(filename, "rb");
                if (fp == NULL)
                {
                    printf ("Can't open eeprom file %s.\n", filename);
                    exit (-1);
                }
                my_eeprom_size = fread(eeprom_buf, 1, max_eeprom_size, fp);
                fclose(fp);
                if (my_eeprom_size < 128)
                {
                    printf ("Can't read eeprom file %s.\n", filename);
                    exit (-1);
                }

                ftdi_set_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
            }
        }
        printf ("FTDI write eeprom: %d\n", ftdi_write_eeprom(ftdi));
        libusb_reset_device(ftdi->usb_dev);
    }

    // Write to file?
    if (filename != NULL && strlen(filename) > 0 && !cfg_getbool(cfg, "flash_raw"))
    {
        fp = fopen(filename, "w");
        if (fp == NULL)
        {
            printf ("Can't write eeprom file.\n");
            exit (-1);
        }
        else
            printf ("Writing to file: %s\n", filename);

        if (eeprom_buf == NULL)
            eeprom_buf = malloc(my_eeprom_size);
        ftdi_get_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);

        fwrite(eeprom_buf, my_eeprom_size, 1, fp);
        fclose(fp);
    }

cleanup:
    if (eeprom_buf)
        free(eeprom_buf);
    if (user_data_buffer)
        free(user_data_buffer);
    if (command > 0)
    {
        printf("FTDI close: %d\n", ftdi_usb_close(ftdi));
    }

    ftdi_deinit (ftdi);
    ftdi_free (ftdi);

    cfg_free(cfg);

    printf("\n");
    return 0;
}
Commit	Line	Data
	1	/***************************************************************************
	2	main.c - description
	3	-------------------
	4	begin : Mon Apr 7 12:05:22 CEST 2003
	5	copyright : (C) 2003-2014 by Intra2net AG and the libftdi developers
	6	email : opensource@intra2net.com
	7	***************************************************************************/
	8
	9	/***************************************************************************
	10	* *
	11	* This program is free software; you can redistribute it and/or modify *
	12	* it under the terms of the GNU General Public License version 2 as *
	13	* published by the Free Software Foundation. *
	14	* *
	15	***************************************************************************/
	16
	17	/*
	18	TODO:
	19	- Merge Uwe's eeprom tool. Current features:
	20	- Init eeprom defaults based upon eeprom type
	21	- Read -> Already there
	22	- Write -> Already there
	23	- Erase -> Already there
	24	- Decode on stdout
	25	- Ability to find device by PID/VID, product name or serial
	26
	27	TODO nice-to-have:
	28	- Out-of-the-box compatibility with FTDI's eeprom tool configuration files
	29	*/
	30
	31	#ifdef HAVE_CONFIG_H
	32	#include <config.h>
	33	#endif
	34
	35	#include <stdlib.h>
	36	#include <stdio.h>
	37	#include <string.h>
	38	#include <errno.h>
	39	#include <sys/stat.h>
	40
	41	#include <confuse.h>
	42	#include <libusb.h>
	43	#include <ftdi.h>
	44	#include <ftdi_eeprom_version.h>
	45
	46	static int parse_cbus(cfg_t cfg, cfg_opt_t opt, const char value, void result)
	47	{
	48	static const char* options[] =
	49	{
	50	"TXDEN", "PWREN", "RXLED", "TXLED", "TXRXLED", "SLEEP", "CLK48",
	51	"CLK24", "CLK12", "CLK6", "IOMODE", "BB_WR", "BB_RD"
	52	};
	53
	54	int i;
	55	for (i=0; i<sizeof(options)/sizeof(*options); i++)
	56	{
	57	if (!(strcmp(options[i], value)))
	58	{
	59	(int )result = i;
	60	return 0;
	61	}
	62	}
	63
	64	cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
	65	return -1;
	66	}
	67
	68	static int parse_cbush(cfg_t cfg, cfg_opt_t opt, const char value, void result)
	69	{
	70	static const char* options[] =
	71	{
	72	"TRISTATE", "TXLED", "RXLED", "TXRXLED", "PWREN", "SLEEP",
	73	"DRIVE_0", "DRIVE1", "IOMODE", "TXDEN", "CLK30", "CLK15", "CLK7_5"
	74	};
	75
	76	int i;
	77	for (i=0; i<sizeof(options)/sizeof(*options); i++)
	78	{
	79	if (!(strcmp(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_cbusx(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", "CLK24", "CLK12",
	96	"CLK6", "BAT_DETECT", "BAT_DETECT_NEG", "I2C_TXE", "I2C_RXF", "VBUS_SENSE",
	97	"BB_WR", "BB_RD", "TIME_STAMP", "AWAKE"
	98	};
	99
	100	int i;
	101	for (i=0; i<sizeof(options)/sizeof(*options); i++)
	102	{
	103	if (!(strcmp(options[i], value)))
	104	{
	105	(int )result = i;
	106	return 0;
	107	}
	108	}
	109
	110	cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
	111	return -1;
	112	}
	113
	114	static int parse_chtype(cfg_t cfg, cfg_opt_t opt, const char value, void result)
	115	{
	116	static const struct
	117	{
	118	char* key;
	119	int opt;
	120	} options[] =
	121	{
	122	{ "UART", CHANNEL_IS_UART },
	123	{ "FIFO", CHANNEL_IS_FIFO },
	124	{ "OPTO", CHANNEL_IS_OPTO },
	125	{ "CPU", CHANNEL_IS_CPU },
	126	{ "FT1284", CHANNEL_IS_FT1284}
	127	};
	128
	129	int i;
	130	for (i=0; i<sizeof(options)/sizeof(*options); i++)
	131	{
	132	if (!(strcmp(options[i].key, value)))
	133	{
	134	(int )result = options[i].opt;
	135	return 0;
	136	}
	137	}
	138
	139	cfg_error(cfg, "Invalid %s option '%s'", cfg_opt_name(opt), value);
	140	return -1;
	141	}
	142
	143	/**
	144	* @brief Set eeprom value
	145	*
	146	* \param ftdi pointer to ftdi_context
	147	* \param value_name Enum of the value to set
	148	* \param value Value to set
	149	*
	150	* Function will abort the program on error
	151	**/
	152	static void eeprom_set_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int value)
	153	{
	154	if (ftdi_set_eeprom_value(ftdi, value_name, value) < 0)
	155	{
	156	printf("Unable to set eeprom value %d: %s. Aborting\n", value_name, ftdi_get_error_string(ftdi));
	157	exit (-1);
	158	}
	159	}
	160
	161	/**
	162	* @brief Get eeprom value
	163	*
	164	* \param ftdi pointer to ftdi_context
	165	* \param value_name Enum of the value to get
	166	* \param value Value to get
	167	*
	168	* Function will abort the program on error
	169	**/
	170	static void eeprom_get_value(struct ftdi_context ftdi, enum ftdi_eeprom_value value_name, int value)
	171	{
	172	if (ftdi_get_eeprom_value(ftdi, value_name, value) < 0)
	173	{
	174	printf("Unable to get eeprom value %d: %s. Aborting\n", value_name, ftdi_get_error_string(ftdi));
	175	exit (-1);
	176	}
	177	}
	178
	179	static void usage(const char *program)
	180	{
	181	fprintf(stderr, "Syntax: %s [...options...] <config-file>\n", program);
	182	fprintf(stderr, "Valid Options:\n");
	183	fprintf(stderr, "--device <description> Specify device to open by description string. One of:\n");
	184	fprintf(stderr, " d:<devicenode>\n");
	185	fprintf(stderr, " i:<vendor>:<product>\n");
	186	fprintf(stderr, " i:<vendor>:<product>:<index>\n");
	187	fprintf(stderr, " s:<vendor>:<product>:<serial>\n");
	188	fprintf(stderr, "--read-eeprom Read eeprom and write to -filename- from config-file\n");
	189	fprintf(stderr, "--build-eeprom Build eeprom image\n");
	190	fprintf(stderr, "--erase-eeprom Erase eeprom\n");
	191	fprintf(stderr, "--flash-eeprom Flash eeprom\n");
	192	}
	193
	194	int main(int argc, char *argv[])
	195	{
	196	/*
	197	configuration options
	198	*/
	199	cfg_opt_t opts[] =
	200	{
	201	CFG_INT("vendor_id", 0, 0),
	202	CFG_INT("product_id", 0, 0),
	203	CFG_BOOL("self_powered", cfg_true, 0),
	204	CFG_BOOL("remote_wakeup", cfg_true, 0),
	205	CFG_BOOL("in_is_isochronous", cfg_false, 0),
	206	CFG_BOOL("out_is_isochronous", cfg_false, 0),
	207	CFG_BOOL("suspend_pull_downs", cfg_false, 0),
	208	CFG_BOOL("use_serial", cfg_false, 0),
	209	CFG_BOOL("change_usb_version", cfg_false, 0),
	210	CFG_INT("usb_version", 0, 0),
	211	CFG_INT("default_pid", 0x6001, 0),
	212	CFG_INT("max_power", 0, 0),
	213	CFG_STR("manufacturer", "Acme Inc.", 0),
	214	CFG_STR("product", "USB Serial Converter", 0),
	215	CFG_STR("serial", "08-15", 0),
	216	CFG_INT("eeprom_type", 0x00, 0),
	217	CFG_STR("filename", "", 0),
	218	CFG_BOOL("flash_raw", cfg_false, 0),
	219	CFG_BOOL("high_current", cfg_false, 0),
	220	CFG_INT_CB("cbus0", -1, 0, parse_cbus),
	221	CFG_INT_CB("cbus1", -1, 0, parse_cbus),
	222	CFG_INT_CB("cbus2", -1, 0, parse_cbus),
	223	CFG_INT_CB("cbus3", -1, 0, parse_cbus),
	224	CFG_INT_CB("cbus4", -1, 0, parse_cbus),
	225	CFG_INT_CB("cbush0", -1, 0, parse_cbush),
	226	CFG_INT_CB("cbush1", -1, 0, parse_cbush),
	227	CFG_INT_CB("cbush2", -1, 0, parse_cbush),
	228	CFG_INT_CB("cbush3", -1, 0, parse_cbush),
	229	CFG_INT_CB("cbush4", -1, 0, parse_cbush),
	230	CFG_INT_CB("cbush5", -1, 0, parse_cbush),
	231	CFG_INT_CB("cbush6", -1, 0, parse_cbush),
	232	CFG_INT_CB("cbush7", -1, 0, parse_cbush),
	233	CFG_INT_CB("cbush8", -1, 0, parse_cbush),
	234	CFG_INT_CB("cbush9", -1, 0, parse_cbush),
	235	CFG_INT_CB("cbusx0", -1, 0, parse_cbusx),
	236	CFG_INT_CB("cbusx1", -1, 0, parse_cbusx),
	237	CFG_INT_CB("cbusx2", -1, 0, parse_cbusx),
	238	CFG_INT_CB("cbusx3", -1, 0, parse_cbusx),
	239	CFG_BOOL("invert_txd", cfg_false, 0),
	240	CFG_BOOL("invert_rxd", cfg_false, 0),
	241	CFG_BOOL("invert_rts", cfg_false, 0),
	242	CFG_BOOL("invert_cts", cfg_false, 0),
	243	CFG_BOOL("invert_dtr", cfg_false, 0),
	244	CFG_BOOL("invert_dsr", cfg_false, 0),
	245	CFG_BOOL("invert_dcd", cfg_false, 0),
	246	CFG_BOOL("invert_ri", cfg_false, 0),
	247	CFG_INT_CB("cha_type", -1, 0, parse_chtype),
	248	CFG_INT_CB("chb_type", -1, 0, parse_chtype),
	249	CFG_BOOL("cha_vcp", cfg_true, 0),
	250	CFG_BOOL("chb_vcp", cfg_true, 0),
	251	CFG_BOOL("chc_vcp", cfg_true, 0),
	252	CFG_BOOL("chd_vcp", cfg_true, 0),
	253	CFG_BOOL("cha_rs485", cfg_false, 0),
	254	CFG_BOOL("chb_rs485", cfg_false, 0),
	255	CFG_BOOL("chc_rs485", cfg_false, 0),
	256	CFG_BOOL("chd_rs485", cfg_false, 0),
	257	CFG_FUNC("include", &cfg_include),
	258	CFG_INT("user_data_addr", 0x18, 0),
	259	CFG_STR("user_data_file", "", 0),
	260	CFG_END()
	261	};
	262	cfg_t *cfg;
	263
	264	/*
	265	normal variables
	266	*/
	267	enum {
	268	COMMAND_READ = 1,
	269	COMMAND_ERASE,
	270	COMMAND_FLASH,
	271	COMMAND_BUILD
	272	} command = 0;
	273	const char *cfg_filename = NULL;
	274	const char *device_description = NULL;
	275	const char *user_data_file = NULL;
	276	char *user_data_buffer = NULL;
	277
	278	const int max_eeprom_size = 256;
	279	int my_eeprom_size = 0;
	280	unsigned char *eeprom_buf = NULL;
	281	char *filename;
	282	int size_check;
	283	int i;
	284	FILE *fp;
	285
	286	struct ftdi_context *ftdi = NULL;
	287
	288	printf("\nFTDI eeprom generator v%s\n", EEPROM_VERSION_STRING);
	289	printf ("(c) Intra2net AG and the libftdi developers <opensource@intra2net.com>\n");
	290
	291	for (i = 1; i < argc; i++) {
	292	if (*argv[i] != '-')
	293	{
	294	cfg_filename = argv[i];
	295	}
	296	else if (!strcmp(argv[i], "--device"))
	297	{
	298	if (i+1 >= argc)
	299	{
	300	usage(argv[0]);
	301	exit(-1);
	302	}
	303	device_description = argv[++i];
	304	}
	305	else if (!strcmp(argv[i], "--read-eeprom"))
	306	{
	307	command = COMMAND_READ;
	308	}
	309	else if (!strcmp(argv[i], "--erase-eeprom"))
	310	{
	311	command = COMMAND_ERASE;
	312	}
	313	else if (!strcmp(argv[i], "--flash-eeprom"))
	314	{
	315	command = COMMAND_FLASH;
	316	}
	317	else if (!strcmp(argv[i], "--build-eeprom"))
	318	{
	319	command = COMMAND_BUILD;
	320	}
	321	else
	322	{
	323	usage(argv[0]);
	324	exit(-1);
	325	}
	326	}
	327
	328	if (!cfg_filename)
	329	{
	330	usage(argv[0]);
	331	exit(-1);
	332	}
	333
	334	if ((fp = fopen(cfg_filename, "r")) == NULL)
	335	{
	336	printf ("Can't open configuration file\n");
	337	exit (-1);
	338	}
	339	fclose (fp);
	340
	341	cfg = cfg_init(opts, 0);
	342	cfg_parse(cfg, cfg_filename);
	343	filename = cfg_getstr(cfg, "filename");
	344
	345	if (cfg_getbool(cfg, "self_powered") && cfg_getint(cfg, "max_power") > 0)
	346	printf("Hint: Self powered devices should have a max_power setting of 0.\n");
	347
	348	if ((ftdi = ftdi_new()) == 0)
	349	{
	350	fprintf(stderr, "Failed to allocate ftdi structure :%s \n",
	351	ftdi_get_error_string(ftdi));
	352	return EXIT_FAILURE;
	353	}
	354
	355	if (device_description != NULL)
	356	{
	357	i = ftdi_usb_open_string(ftdi, device_description);
	358
	359	if (i != 0)
	360	{
	361	printf("Unable to find FTDI device with description: %s\n",
	362	device_description);
	363	printf("Error code: %d (%s)\n", i, ftdi_get_error_string(ftdi));
	364	exit (-1);
	365	}
	366	}
	367	else if (command > 0)
	368	{
	369	int vendor_id = cfg_getint(cfg, "vendor_id");
	370	int product_id = cfg_getint(cfg, "product_id");
	371
	372	i = ftdi_usb_open(ftdi, vendor_id, product_id);
	373
	374	if (i != 0)
	375	{
	376	int default_pid = cfg_getint(cfg, "default_pid");
	377	printf("Unable to find FTDI devices under given vendor/product id: 0x%X/0x%X\n", vendor_id, product_id);
	378	printf("Error code: %d (%s)\n", i, ftdi_get_error_string(ftdi));
	379	printf("Retrying with default FTDI pid=%#04x.\n", default_pid);
	380
	381	i = ftdi_usb_open(ftdi, 0x0403, default_pid);
	382	if (i != 0)
	383	{
	384	printf("Error: %s\n", ftdi->error_str);
	385	exit (-1);
	386	}
	387	}
	388	}
	389	ftdi_eeprom_initdefaults (ftdi, cfg_getstr(cfg, "manufacturer"),
	390	cfg_getstr(cfg, "product"),
	391	cfg_getstr(cfg, "serial"));
	392
	393	printf("FTDI read eeprom: %d\n", ftdi_read_eeprom(ftdi));
	394	eeprom_get_value(ftdi, CHIP_SIZE, &my_eeprom_size);
	395	printf("EEPROM size: %d\n", my_eeprom_size);
	396
	397	if (command == COMMAND_READ)
	398	{
	399	ftdi_eeprom_decode(ftdi, 0 /* debug: 1 */);
	400
	401	eeprom_buf = malloc(my_eeprom_size);
	402	ftdi_get_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
	403
	404	if (eeprom_buf == NULL)
	405	{
	406	fprintf(stderr, "Malloc failed, aborting\n");
	407	goto cleanup;
	408	}
	409	if (filename != NULL && strlen(filename) > 0)
	410	{
	411	FILE *fp = fopen (filename, "wb");
	412
	413	if(fp)
	414	{
	415	fwrite(eeprom_buf, 1, my_eeprom_size, fp);
	416	fclose(fp);
	417	}
	418	else
	419	fprintf(stderr, "Could not open output file %s: %s\n", filename, strerror(errno));
	420	}
	421	else
	422	{
	423	printf("Warning: Not writing eeprom, you must supply a valid filename\n");
	424	}
	425
	426	goto cleanup;
	427	}
	428
	429	eeprom_set_value(ftdi, VENDOR_ID, cfg_getint(cfg, "vendor_id"));
	430	eeprom_set_value(ftdi, PRODUCT_ID, cfg_getint(cfg, "product_id"));
	431
	432	eeprom_set_value(ftdi, SELF_POWERED, cfg_getbool(cfg, "self_powered"));
	433	eeprom_set_value(ftdi, REMOTE_WAKEUP, cfg_getbool(cfg, "remote_wakeup"));
	434	eeprom_set_value(ftdi, MAX_POWER, cfg_getint(cfg, "max_power"));
	435
	436	eeprom_set_value(ftdi, IN_IS_ISOCHRONOUS, cfg_getbool(cfg, "in_is_isochronous"));
	437	eeprom_set_value(ftdi, OUT_IS_ISOCHRONOUS, cfg_getbool(cfg, "out_is_isochronous"));
	438	eeprom_set_value(ftdi, SUSPEND_PULL_DOWNS, cfg_getbool(cfg, "suspend_pull_downs"));
	439
	440	eeprom_set_value(ftdi, USE_SERIAL, cfg_getbool(cfg, "use_serial"));
	441	eeprom_set_value(ftdi, USE_USB_VERSION, cfg_getbool(cfg, "change_usb_version"));
	442	eeprom_set_value(ftdi, USB_VERSION, cfg_getint(cfg, "usb_version"));
	443	eeprom_set_value(ftdi, CHIP_TYPE, cfg_getint(cfg, "eeprom_type"));
	444
	445	eeprom_set_value(ftdi, HIGH_CURRENT, cfg_getbool(cfg, "high_current"));
	446
	447	if (ftdi->type == TYPE_R)
	448	{
	449	if (cfg_getint(cfg, "cbus0") != -1)
	450	eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbus0"));
	451	if (cfg_getint(cfg, "cbus1") != -1)
	452	eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbus1"));
	453	if (cfg_getint(cfg, "cbus2") != -1)
	454	eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbus2"));
	455	if (cfg_getint(cfg, "cbus3") != -1)
	456	eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbus3"));
	457	if (cfg_getint(cfg, "cbus4") != -1)
	458	eeprom_set_value(ftdi, CBUS_FUNCTION_4, cfg_getint(cfg, "cbus4"));
	459	}
	460	else if (ftdi->type == TYPE_232H)
	461	{
	462	if (cfg_getint(cfg, "cbush0") != -1)
	463	eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbush0"));
	464	if (cfg_getint(cfg, "cbush1") != -1)
	465	eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbush1"));
	466	if (cfg_getint(cfg, "cbush2") != -1)
	467	eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbush2"));
	468	if (cfg_getint(cfg, "cbush3") != -1)
	469	eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbush3"));
	470	if (cfg_getint(cfg, "cbush4") != -1)
	471	eeprom_set_value(ftdi, CBUS_FUNCTION_4, cfg_getint(cfg, "cbush4"));
	472	if (cfg_getint(cfg, "cbush5") != -1)
	473	eeprom_set_value(ftdi, CBUS_FUNCTION_5, cfg_getint(cfg, "cbush5"));
	474	if (cfg_getint(cfg, "cbush6") != -1)
	475	eeprom_set_value(ftdi, CBUS_FUNCTION_6, cfg_getint(cfg, "cbush6"));
	476	if (cfg_getint(cfg, "cbush7") != -1)
	477	eeprom_set_value(ftdi, CBUS_FUNCTION_7, cfg_getint(cfg, "cbush7"));
	478	if (cfg_getint(cfg, "cbush8") != -1)
	479	eeprom_set_value(ftdi, CBUS_FUNCTION_8, cfg_getint(cfg, "cbush8"));
	480	if (cfg_getint(cfg, "cbush9") != -1)
	481	eeprom_set_value(ftdi, CBUS_FUNCTION_9, cfg_getint(cfg, "cbush9"));
	482	}
	483	else if (ftdi->type == TYPE_230X)
	484	{
	485	if (cfg_getint(cfg, "cbusx0") != -1)
	486	eeprom_set_value(ftdi, CBUS_FUNCTION_0, cfg_getint(cfg, "cbusx0"));
	487	if (cfg_getint(cfg, "cbusx1") != -1)
	488	eeprom_set_value(ftdi, CBUS_FUNCTION_1, cfg_getint(cfg, "cbusx1"));
	489	if (cfg_getint(cfg, "cbusx2") != -1)
	490	eeprom_set_value(ftdi, CBUS_FUNCTION_2, cfg_getint(cfg, "cbusx2"));
	491	if (cfg_getint(cfg, "cbusx3") != -1)
	492	eeprom_set_value(ftdi, CBUS_FUNCTION_3, cfg_getint(cfg, "cbusx3"));
	493	}
	494
	495	int invert = 0;
	496	if (cfg_getbool(cfg, "invert_rxd")) invert \|= INVERT_RXD;
	497	if (cfg_getbool(cfg, "invert_txd")) invert \|= INVERT_TXD;
	498	if (cfg_getbool(cfg, "invert_rts")) invert \|= INVERT_RTS;
	499	if (cfg_getbool(cfg, "invert_cts")) invert \|= INVERT_CTS;
	500	if (cfg_getbool(cfg, "invert_dtr")) invert \|= INVERT_DTR;
	501	if (cfg_getbool(cfg, "invert_dsr")) invert \|= INVERT_DSR;
	502	if (cfg_getbool(cfg, "invert_dcd")) invert \|= INVERT_DCD;
	503	if (cfg_getbool(cfg, "invert_ri")) invert \|= INVERT_RI;
	504	eeprom_set_value(ftdi, INVERT, invert);
	505
	506	if (cfg_getint(cfg, "cha_type") != -1)
	507	eeprom_set_value(ftdi, CHANNEL_A_TYPE, cfg_getint(cfg, "cha_type"));
	508	if (cfg_getint(cfg, "chb_type") != -1)
	509	eeprom_set_value(ftdi, CHANNEL_B_TYPE, cfg_getint(cfg, "chb_type"));
	510
	511	eeprom_set_value(ftdi, CHANNEL_A_DRIVER,
	512	cfg_getbool(cfg, "cha_vcp") ? DRIVER_VCP : 0);
	513	eeprom_set_value(ftdi, CHANNEL_B_DRIVER,
	514	cfg_getbool(cfg, "chb_vcp") ? DRIVER_VCP : 0);
	515	eeprom_set_value(ftdi, CHANNEL_C_DRIVER,
	516	cfg_getbool(cfg, "chc_vcp") ? DRIVER_VCP : 0);
	517	eeprom_set_value(ftdi, CHANNEL_D_DRIVER,
	518	cfg_getbool(cfg, "chd_vcp") ? DRIVER_VCP : 0);
	519
	520	eeprom_set_value(ftdi, CHANNEL_A_RS485, cfg_getbool(cfg, "cha_rs485"));
	521	eeprom_set_value(ftdi, CHANNEL_B_RS485, cfg_getbool(cfg, "chb_rs485"));
	522	eeprom_set_value(ftdi, CHANNEL_C_RS485, cfg_getbool(cfg, "chc_rs485"));
	523	eeprom_set_value(ftdi, CHANNEL_D_RS485, cfg_getbool(cfg, "chd_rs485"));
	524
	525	/* Arbitrary user data */
	526	eeprom_set_value(ftdi, USER_DATA_ADDR, cfg_getint(cfg, "user_data_addr"));
	527	user_data_file = cfg_getstr(cfg, "user_data_file");
	528	if (user_data_file && strlen(user_data_file) > 0)
	529	{
	530	int data_size;
	531	struct stat st;
	532
	533	printf("User data file: %s\n", user_data_file);
	534	/* Allocate a buffer for the user data */
	535	user_data_buffer = (char *)malloc(max_eeprom_size);
	536	if (user_data_buffer == NULL)
	537	{
	538	fprintf(stderr, "Malloc failed, aborting\n");
	539	goto cleanup;
	540	}
	541
	542	if (stat(user_data_file, &st))
	543	{
	544	printf ("Can't stat user data file %s.\n", user_data_file);
	545	exit (-1);
	546	}
	547	if (st.st_size > max_eeprom_size)
	548	printf("Warning: %s is too big, only reading %d bytes\n",
	549	user_data_file, max_eeprom_size);
	550	/* Read the user data file, no more than max_eeprom_size bytes */
	551	FILE *fp = fopen(user_data_file, "rb");
	552	if (fp == NULL)
	553	{
	554	printf ("Can't open user data file %s.\n", user_data_file);
	555	exit (-1);
	556	}
	557	data_size = fread(user_data_buffer, 1, max_eeprom_size, fp);
	558	fclose(fp);
	559	if (data_size < 1)
	560	{
	561	printf ("Can't read user data file %s.\n", user_data_file);
	562	exit (-1);
	563	}
	564	printf("User data size: %d\n", data_size);
	565
	566	ftdi_set_eeprom_user_data(ftdi, user_data_buffer, data_size);
	567	}
	568
	569
	570	if (command == COMMAND_ERASE)
	571	{
	572	printf("FTDI erase eeprom: %d\n", ftdi_erase_eeprom(ftdi));
	573	}
	574
	575	size_check = ftdi_eeprom_build(ftdi);
	576	eeprom_get_value(ftdi, CHIP_SIZE, &my_eeprom_size);
	577
	578	if (size_check == -1)
	579	{
	580	printf ("Sorry, the eeprom can only contain %d bytes.\n", my_eeprom_size);
	581	goto cleanup;
	582	}
	583	else if (size_check < 0)
	584	{
	585	printf ("ftdi_eeprom_build(): error: %d\n", size_check);
	586	goto cleanup;
	587	}
	588	else
	589	{
	590	printf ("Used eeprom space: %d bytes\n", my_eeprom_size-size_check);
	591	}
	592
	593	if (command == COMMAND_FLASH)
	594	{
	595	if (cfg_getbool(cfg, "flash_raw"))
	596	{
	597	if (filename != NULL && strlen(filename) > 0)
	598	{
	599	eeprom_buf = malloc(max_eeprom_size);
	600	FILE *fp = fopen(filename, "rb");
	601	if (fp == NULL)
	602	{
	603	printf ("Can't open eeprom file %s.\n", filename);
	604	exit (-1);
	605	}
	606	my_eeprom_size = fread(eeprom_buf, 1, max_eeprom_size, fp);
	607	fclose(fp);
	608	if (my_eeprom_size < 128)
	609	{
	610	printf ("Can't read eeprom file %s.\n", filename);
	611	exit (-1);
	612	}
	613
	614	ftdi_set_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
	615	}
	616	}
	617	printf ("FTDI write eeprom: %d\n", ftdi_write_eeprom(ftdi));
	618	libusb_reset_device(ftdi->usb_dev);
	619	}
	620
	621	// Write to file?
	622	if (filename != NULL && strlen(filename) > 0 && !cfg_getbool(cfg, "flash_raw"))
	623	{
	624	fp = fopen(filename, "w");
	625	if (fp == NULL)
	626	{
	627	printf ("Can't write eeprom file.\n");
	628	exit (-1);
	629	}
	630	else
	631	printf ("Writing to file: %s\n", filename);
	632
	633	if (eeprom_buf == NULL)
	634	eeprom_buf = malloc(my_eeprom_size);
	635	ftdi_get_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
	636
	637	fwrite(eeprom_buf, my_eeprom_size, 1, fp);
	638	fclose(fp);
	639	}
	640
	641	cleanup:
	642	if (eeprom_buf)
	643	free(eeprom_buf);
	644	if (user_data_buffer)
	645	free(user_data_buffer);
	646	if (command > 0)
	647	{
	648	printf("FTDI close: %d\n", ftdi_usb_close(ftdi));
	649	}
	650
	651	ftdi_deinit (ftdi);
	652	ftdi_free (ftdi);
	653
	654	cfg_free(cfg);
	655
	656	printf("\n");
	657	return 0;
	658	}