--- /dev/null
+/***************************************************************************
+ main.c - description
+ -------------------
+ begin : Mon Apr 7 12:05:22 CEST 2003
+ copyright : (C) 2003-2011 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:
+ - Remove 128 bytes limit
+ - 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 <confuse.h>
+#include <ftdi.h>
+#include <ftdi_eeprom_version.h>
+
+static int str_to_cbus(char *str, int max_allowed)
+{
+ #define MAX_OPTION 14
+ const char* options[MAX_OPTION] = {
+ "TXDEN", "PWREN", "RXLED", "TXLED", "TXRXLED", "SLEEP",
+ "CLK48", "CLK24", "CLK12", "CLK6",
+ "IO_MODE", "BITBANG_WR", "BITBANG_RD", "SPECIAL"};
+ int i;
+ max_allowed += 1;
+ if (max_allowed > MAX_OPTION) max_allowed = MAX_OPTION;
+ for (i=0; i<max_allowed; i++) {
+ if (!(strcmp(options[i], str))) {
+ return i;
+ }
+ }
+ printf("WARNING: Invalid cbus option '%s'\n", str);
+ return 0;
+}
+
+/**
+ * @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);
+ }
+}
+
+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_STR_LIST("chip_type", "{BM,R,other}", 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_STR("filename", "", 0),
+ CFG_BOOL("flash_raw", cfg_false, 0),
+ CFG_BOOL("high_current", cfg_false, 0),
+ CFG_STR_LIST("cbus0", "{TXDEN,PWREN,RXLED,TXLED,TXRXLED,SLEEP,CLK48,CLK24,CLK12,CLK6,IO_MODE,BITBANG_WR,BITBANG_RD,SPECIAL}", 0),
+ CFG_STR_LIST("cbus1", "{TXDEN,PWREN,RXLED,TXLED,TXRXLED,SLEEP,CLK48,CLK24,CLK12,CLK6,IO_MODE,BITBANG_WR,BITBANG_RD,SPECIAL}", 0),
+ CFG_STR_LIST("cbus2", "{TXDEN,PWREN,RXLED,TXLED,TXRXLED,SLEEP,CLK48,CLK24,CLK12,CLK6,IO_MODE,BITBANG_WR,BITBANG_RD,SPECIAL}", 0),
+ CFG_STR_LIST("cbus3", "{TXDEN,PWREN,RXLED,TXLED,TXRXLED,SLEEP,CLK48,CLK24,CLK12,CLK6,IO_MODE,BITBANG_WR,BITBANG_RD,SPECIAL}", 0),
+ CFG_STR_LIST("cbus4", "{TXDEN,PWRON,RXLED,TXLED,TX_RX_LED,SLEEP,CLK48,CLK24,CLK12,CLK6}", 0),
+ 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_END()
+ };
+ cfg_t *cfg;
+
+ /*
+ normal variables
+ */
+ int _read = 0, _erase = 0, _flash = 0;
+
+ const int my_eeprom_size = 128; /* TODO: Kill this. Check with Uwe how we can determine the eeprom size properly
+ because it's initialized with -1. Maybe assume 128 bytes per default? */
+ unsigned char eeprom_buf[my_eeprom_size];
+ char *filename;
+ int size_check;
+ int i, argc_filename;
+ 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");
+
+ if (argc != 2 && argc != 3)
+ {
+ printf("Syntax: %s [commands] config-file\n", argv[0]);
+ printf("Valid commands:\n");
+ printf("--read-eeprom Read eeprom and write to -filename- from config-file\n");
+ printf("--erase-eeprom Erase eeprom\n");
+ printf("--flash-eeprom Flash eeprom\n");
+ exit (-1);
+ }
+
+ if (argc == 3)
+ {
+ if (strcmp(argv[1], "--read-eeprom") == 0)
+ _read = 1;
+ if (strcmp(argv[1], "--erase-eeprom") == 0)
+ _erase = 1;
+ if (strcmp(argv[1], "--flash-eeprom") == 0)
+ _flash = 1;
+
+ argc_filename = 2;
+ }
+ else
+ {
+ argc_filename = 1;
+ }
+
+ if ((fp = fopen(argv[argc_filename], "r")) == NULL)
+ {
+ printf ("Can't open configuration file\n");
+ exit (-1);
+ }
+ fclose (fp);
+
+ cfg = cfg_init(opts, 0);
+ cfg_parse(cfg, argv[argc_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;
+ }
+
+ ftdi_eeprom_initdefaults (ftdi, "Acme Inc.", "FTDI Chip", NULL);
+
+ eeprom_set_value(ftdi, VENDOR_ID, cfg_getint(cfg, "vendor_id"));
+ eeprom_set_value(ftdi, PRODUCT_ID, cfg_getint(cfg, "product_id"));
+
+ // TODO: Support all chip types
+ char *type = cfg_getstr(cfg, "chip_type");
+ if (!strcmp(type, "BM")) {
+ ftdi->type = TYPE_BM;
+ } else if (!strcmp(type, "R")) {
+ ftdi->type = TYPE_R;
+ } else {
+ ftdi->type = TYPE_AM;
+ }
+
+ 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"));
+
+
+ ftdi->eeprom->manufacturer = cfg_getstr(cfg, "manufacturer");
+ ftdi->eeprom->product = cfg_getstr(cfg, "product");
+ ftdi->eeprom->serial = cfg_getstr(cfg, "serial");
+ eeprom_set_value(ftdi, HIGH_CURRENT, cfg_getbool(cfg, "high_current"));
+ eeprom_set_value(ftdi, CBUS_FUNCTION_0, str_to_cbus(cfg_getstr(cfg, "cbus0"), 13));
+ eeprom_set_value(ftdi, CBUS_FUNCTION_1, str_to_cbus(cfg_getstr(cfg, "cbus1"), 13));
+ eeprom_set_value(ftdi, CBUS_FUNCTION_2, str_to_cbus(cfg_getstr(cfg, "cbus2"), 13));
+ eeprom_set_value(ftdi, CBUS_FUNCTION_3, str_to_cbus(cfg_getstr(cfg, "cbus3"), 13));
+ eeprom_set_value(ftdi, CBUS_FUNCTION_4, str_to_cbus(cfg_getstr(cfg, "cbus4"), 9));
+ 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 (_read > 0 || _erase > 0 || _flash > 0)
+ {
+ int vendor_id = 0, product_id = 0;
+ eeprom_get_value(ftdi, VENDOR_ID, &vendor_id);
+ eeprom_get_value(ftdi, PRODUCT_ID, &product_id);
+
+ i = ftdi_usb_open(ftdi, vendor_id, product_id);
+
+ if (i == 0)
+ {
+ // TODO: Do we know the eeprom size already?
+ printf("EEPROM size: %d\n", ftdi->eeprom->size);
+ }
+ else
+ {
+ 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);
+ }
+ }
+ }
+
+ if (_read > 0)
+ {
+ printf("FTDI read eeprom: %d\n", ftdi_read_eeprom(ftdi));
+
+ ftdi_eeprom_decode(ftdi, 0);
+ /* Debug output */
+ /*
+ const char* chip_types[] = {"other", "BM", "R"};
+ printf("vendor_id = \"%04x\"\n", eeprom->vendor_id);
+ printf("product_id = \"%04x\"\n", eeprom->product_id);
+ printf("chip_type = \"%s\"\n",
+ (eeprom->chip_type > 0x06) || (eeprom->chip_type & 0x01) ? "unknown":
+ chip_types[eeprom->chip_type>>1]);
+ printf("self_powered = \"%s\"\n", eeprom->self_powered?"true":"false");
+ printf("remote_wakeup = \"%s\"\n", eeprom->remote_wakeup?"true":"false");
+ printf("max_power = \"%d\"\n", eeprom->max_power);
+ printf("in_is_isochronous = \"%s\"\n", eeprom->in_is_isochronous?"true":"false");
+ printf("out_is_isochronous = \"%s\"\n", eeprom->out_is_isochronous?"true":"false");
+ printf("suspend_pull_downs = \"%s\"\n", eeprom->suspend_pull_downs?"true":"false");
+ printf("use_serial = \"%s\"\n", eeprom->use_serial?"true":"false");
+ printf("change_usb_version = \"%s\"\n", eeprom->change_usb_version?"true":"false");
+ printf("usb_version = \"%d\"\n", eeprom->usb_version);
+ printf("manufacturer = \"%s\"\n", eeprom->manufacturer);
+ printf("product = \"%s\"\n", eeprom->product);
+ printf("serial = \"%s\"\n", eeprom->serial);
+ */
+
+ if (filename != NULL && strlen(filename) > 0)
+ {
+ ftdi_get_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
+
+ FILE *fp = fopen (filename, "wb");
+ fwrite (eeprom_buf, 1, my_eeprom_size, fp);
+ fclose (fp);
+ }
+ else
+ {
+ printf("Warning: Not writing eeprom, you must supply a valid filename\n");
+ }
+
+ goto cleanup;
+ }
+
+ if (_erase > 0)
+ {
+ printf("FTDI erase eeprom: %d\n", ftdi_erase_eeprom(ftdi));
+ }
+
+ size_check = ftdi_eeprom_build(ftdi);
+
+ if (size_check == -1)
+ {
+ printf ("Sorry, the eeprom can only contain 128 bytes (100 bytes for your strings).\n");
+ printf ("You need to short your string by: %d bytes\n", size_check);
+ goto cleanup;
+ } else if (size_check < 0) {
+ printf ("ftdi_eeprom_build(): error: %d\n", size_check);
+ }
+ else
+ {
+ printf ("Used eeprom space: %d bytes\n", my_eeprom_size-size_check);
+ }
+
+ if (_flash > 0)
+ {
+ if (cfg_getbool(cfg, "flash_raw"))
+ {
+ if (filename != NULL && strlen(filename) > 0)
+ {
+ FILE *fp = fopen(filename, "rb");
+ fread(eeprom_buf, 1, my_eeprom_size, fp);
+ fclose(fp);
+
+ /* TODO: Dirty hack. Create an API for this. How about ftdi_set_eeprom_buf()? */
+ memcpy(ftdi->eeprom->buf, eeprom_buf, my_eeprom_size);
+ }
+ }
+ printf ("FTDI write eeprom: %d\n", ftdi_write_eeprom(ftdi));
+ }
+
+ // 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);
+
+ ftdi_get_eeprom_buf(ftdi, eeprom_buf, my_eeprom_size);
+
+ fwrite(eeprom_buf, my_eeprom_size, 1, fp);
+ fclose(fp);
+ }
+
+cleanup:
+ if (_read > 0 || _erase > 0 || _flash > 0)
+ {
+ printf("FTDI close: %d\n", ftdi_usb_close(ftdi));
+ }
+
+ ftdi_deinit (ftdi);
+
+ cfg_free(cfg);
+
+ printf("\n");
+ return 0;
+}
ftdi.c - description
-------------------
begin : Fri Apr 4 2003
- copyright : (C) 2003-2010 by Intra2net AG
+ copyright : (C) 2003-2011 by Intra2net AG and the libftdi developers
email : opensource@intra2net.com
***************************************************************************/
{
if (ftdi && ftdi->usb_dev)
{
- libusb_close (ftdi->usb_dev);
- ftdi->usb_dev = NULL;
+ libusb_close (ftdi->usb_dev);
+ ftdi->usb_dev = NULL;
}
}
\retval 0: all fine
\retval -1: couldn't allocate read buffer
+ \retval -2: couldn't allocate struct buffer
\remark This should be called before all functions
*/
int ftdi_init(struct ftdi_context *ftdi)
{
+ struct ftdi_eeprom* eeprom = (struct ftdi_eeprom *)malloc(sizeof(struct ftdi_eeprom));
ftdi->usb_ctx = NULL;
ftdi->usb_dev = NULL;
ftdi->usb_read_timeout = 5000;
ftdi->error_str = NULL;
- ftdi->eeprom_size = FTDI_DEFAULT_EEPROM_SIZE;
+ if (eeprom == 0)
+ ftdi_error_return(-2, "Can't malloc struct ftdi_eeprom");
+ memset(eeprom, 0, sizeof(struct ftdi_eeprom));
+ ftdi->eeprom = eeprom;
/* All fine. Now allocate the readbuffer */
return ftdi_read_data_set_chunksize(ftdi, 4096);
free(ftdi->readbuffer);
ftdi->readbuffer = NULL;
}
+
+ if (ftdi->eeprom != NULL)
+ {
+ if (ftdi->eeprom->manufacturer != 0)
+ {
+ free(ftdi->eeprom->manufacturer);
+ ftdi->eeprom->manufacturer = 0;
+ }
+ if (ftdi->eeprom->product != 0)
+ {
+ free(ftdi->eeprom->product);
+ ftdi->eeprom->product = 0;
+ }
+ if (ftdi->eeprom->serial != 0)
+ {
+ free(ftdi->eeprom->serial);
+ ftdi->eeprom->serial = 0;
+ }
+ free(ftdi->eeprom);
+ ftdi->eeprom = NULL;
+ }
libusb_exit(ftdi->usb_ctx);
}
*curdev = (struct ftdi_device_list*)malloc(sizeof(struct ftdi_device_list));
if (!*curdev)
ftdi_error_return(-3, "out of memory");
-
+
(*curdev)->next = NULL;
(*curdev)->dev = dev;
if (libusb_set_configuration(ftdi->usb_dev, cfg0) < 0)
{
ftdi_usb_close_internal (ftdi);
- if(detach_errno == EPERM)
+ if (detach_errno == EPERM)
{
ftdi_error_return(-8, "inappropriate permissions on device!");
}
if (libusb_claim_interface(ftdi->usb_dev, ftdi->interface) < 0)
{
ftdi_usb_close_internal (ftdi);
- if(detach_errno == EPERM)
+ if (detach_errno == EPERM)
{
ftdi_error_return(-8, "inappropriate permissions on device!");
}
// Try to guess chip type
// Bug in the BM type chips: bcdDevice is 0x200 for serial == 0
if (desc.bcdDevice == 0x400 || (desc.bcdDevice == 0x200
- && desc.iSerialNumber == 0))
+ && desc.iSerialNumber == 0))
ftdi->type = TYPE_BM;
else if (desc.bcdDevice == 0x200)
ftdi->type = TYPE_AM;
\retval -11: ftdi context invalid
*/
int ftdi_usb_open_desc_index(struct ftdi_context *ftdi, int vendor, int product,
- const char* description, const char* serial, unsigned int index)
+ const char* description, const char* serial, unsigned int index)
{
libusb_device *dev;
libusb_device **devs;
ftdi_usb_close_internal (ftdi);
- if (index > 0)
- {
- index--;
- continue;
- }
+ if (index > 0)
+ {
+ index--;
+ continue;
+ }
res = ftdi_usb_open_dev(ftdi, dev);
libusb_free_device_list(devs,1);
{
libusb_device *dev;
libusb_device **devs;
- unsigned int bus_number, device_address;
- int i = 0;
+ unsigned int bus_number, device_address;
+ int i = 0;
if (libusb_init (&ftdi->usb_ctx) < 0)
- ftdi_error_return(-1, "libusb_init() failed");
+ ftdi_error_return(-1, "libusb_init() failed");
- if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0)
- ftdi_error_return(-2, "libusb_get_device_list() failed");
+ if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0)
+ ftdi_error_return(-2, "libusb_get_device_list() failed");
/* XXX: This doesn't handle symlinks/odd paths/etc... */
if (sscanf (description + 2, "%u/%u", &bus_number, &device_address) != 2)
- ftdi_error_return_free_device_list(-11, "illegal description format", devs);
+ ftdi_error_return_free_device_list(-11, "illegal description format", devs);
- while ((dev = devs[i++]) != NULL)
+ while ((dev = devs[i++]) != NULL)
{
int ret;
- if (bus_number == libusb_get_bus_number (dev)
- && device_address == libusb_get_device_address (dev))
+ if (bus_number == libusb_get_bus_number (dev)
+ && device_address == libusb_get_device_address (dev))
{
ret = ftdi_usb_open_dev(ftdi, dev);
libusb_free_device_list(devs,1);
if (actual_length > packet_size - 2)
{
for (i = 1; i < num_of_chunks; i++)
- memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i,
- ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i,
- packet_size - 2);
+ memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i,
+ ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i,
+ packet_size - 2);
if (chunk_remains > 2)
{
memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i,
actual_length -= 2*num_of_chunks;
}
else
- actual_length -= 2*(num_of_chunks-1)+chunk_remains;
+ actual_length -= 2*(num_of_chunks-1)+chunk_remains;
}
if (actual_length > 0)
{
struct ftdi_transfer_control *tc = (struct ftdi_transfer_control *) transfer->user_data;
struct ftdi_context *ftdi = tc->ftdi;
-
+
tc->offset += transfer->actual_length;
-
+
if (tc->offset == tc->size)
{
tc->completed = 1;
struct ftdi_transfer_control *ftdi_write_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size)
{
struct ftdi_transfer_control *tc;
- struct libusb_transfer *transfer = libusb_alloc_transfer(0);
+ struct libusb_transfer *transfer;
int write_size, ret;
if (ftdi == NULL || ftdi->usb_dev == NULL)
- {
- libusb_free_transfer(transfer);
return NULL;
- }
tc = (struct ftdi_transfer_control *) malloc (sizeof (*tc));
+ if (!tc)
+ return NULL;
- if (!tc || !transfer)
+ transfer = libusb_alloc_transfer(0);
+ if (!transfer)
+ {
+ free(tc);
return NULL;
+ }
tc->ftdi = ftdi;
tc->completed = 0;
tc->offset = 0;
if (size < ftdi->writebuffer_chunksize)
- write_size = size;
+ write_size = size;
else
- write_size = ftdi->writebuffer_chunksize;
+ write_size = ftdi->writebuffer_chunksize;
libusb_fill_bulk_transfer(transfer, ftdi->usb_dev, ftdi->in_ep, buf,
write_size, ftdi_write_data_cb, tc,
if (ret < 0)
{
libusb_free_transfer(transfer);
- tc->completed = 1;
- tc->transfer = NULL;
+ free(tc);
return NULL;
}
tc->transfer = transfer;
}
/**
- Set the eeprom size
-
- \param ftdi pointer to ftdi_context
- \param eeprom Pointer to ftdi_eeprom
- \param size
-
-*/
-void ftdi_eeprom_setsize(struct ftdi_context *ftdi, struct ftdi_eeprom *eeprom, int size)
-{
- if (ftdi == NULL)
- return;
-
- ftdi->eeprom_size=size;
- eeprom->size=size;
-}
-
-/**
Init eeprom with default values.
+ \param ftdi pointer to ftdi_context
+ \param manufacturer String to use as Manufacturer
+ \param product String to use as Product description
+ \param serial String to use as Serial number description
- \param eeprom Pointer to ftdi_eeprom
+ \retval 0: all fine
+ \retval -1: No struct ftdi_context
+ \retval -2: No struct ftdi_eeprom
*/
-void ftdi_eeprom_initdefaults(struct ftdi_eeprom *eeprom)
+int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer,
+ char * product, char * serial)
{
- int i;
-
- if (eeprom == NULL)
- return;
+ struct ftdi_eeprom *eeprom;
- eeprom->vendor_id = 0x0403;
- eeprom->product_id = 0x6001;
+ if (ftdi == NULL)
+ ftdi_error_return(-1, "No struct ftdi_context");
- eeprom->self_powered = 1;
- eeprom->remote_wakeup = 1;
- eeprom->chip_type = TYPE_BM;
+ if (ftdi->eeprom == NULL)
+ ftdi_error_return(-2,"No struct ftdi_eeprom");
- eeprom->in_is_isochronous = 0;
- eeprom->out_is_isochronous = 0;
- eeprom->suspend_pull_downs = 0;
+ eeprom = ftdi->eeprom;
+ memset(eeprom, 0, sizeof(struct ftdi_eeprom));
- eeprom->use_serial = 0;
- eeprom->change_usb_version = 0;
- eeprom->usb_version = 0x0200;
- eeprom->max_power = 0;
+ eeprom->vendor_id = 0x0403;
+ eeprom->use_serial = USE_SERIAL_NUM;
+ if ((ftdi->type == TYPE_AM) || (ftdi->type == TYPE_BM) ||
+ (ftdi->type == TYPE_R))
+ eeprom->product_id = 0x6001;
+ else
+ eeprom->product_id = 0x6010;
+ if (ftdi->type == TYPE_AM)
+ eeprom->usb_version = 0x0101;
+ else
+ eeprom->usb_version = 0x0200;
+ eeprom->max_power = 100;
+ if (eeprom->manufacturer)
+ free (eeprom->manufacturer);
eeprom->manufacturer = NULL;
+ if (manufacturer)
+ {
+ eeprom->manufacturer = malloc(strlen(manufacturer)+1);
+ if (eeprom->manufacturer)
+ strcpy(eeprom->manufacturer, manufacturer);
+ }
+
+ if (eeprom->product)
+ free (eeprom->product);
eeprom->product = NULL;
- eeprom->serial = NULL;
- for (i=0; i < 5; i++)
{
- eeprom->cbus_function[i] = 0;
+ eeprom->product = malloc(strlen(product)+1);
+ if (eeprom->product)
+ strcpy(eeprom->product, product);
}
- eeprom->high_current = 0;
- eeprom->invert = 0;
- eeprom->size = FTDI_DEFAULT_EEPROM_SIZE;
-}
+ if (eeprom->serial)
+ free (eeprom->serial);
+ eeprom->serial = NULL;
+ if (serial)
+ {
+ eeprom->serial = malloc(strlen(serial)+1);
+ if (eeprom->serial)
+ strcpy(eeprom->serial, serial);
+ }
-/**
- Frees allocated memory in eeprom.
- \param eeprom Pointer to ftdi_eeprom
-*/
-void ftdi_eeprom_free(struct ftdi_eeprom *eeprom)
-{
- if (eeprom->manufacturer != 0) {
- free(eeprom->manufacturer);
- eeprom->manufacturer = 0;
- }
- if (eeprom->product != 0) {
- free(eeprom->product);
- eeprom->product = 0;
- }
- if (eeprom->serial != 0) {
- free(eeprom->serial);
- eeprom->serial = 0;
+ if (ftdi->type == TYPE_R)
+ {
+ eeprom->max_power = 90;
+ eeprom->size = 0x80;
+ eeprom->cbus_function[0] = CBUS_TXLED;
+ eeprom->cbus_function[1] = CBUS_RXLED;
+ eeprom->cbus_function[2] = CBUS_TXDEN;
+ eeprom->cbus_function[3] = CBUS_PWREN;
+ eeprom->cbus_function[4] = CBUS_SLEEP;
}
+ else
+ eeprom->size = -1;
+ return 0;
}
/**
- Build binary output from ftdi_eeprom structure.
+ Build binary buffer from ftdi_eeprom structure.
Output is suitable for ftdi_write_eeprom().
- \note This function doesn't handle FT2232x devices. Only FT232x.
- \param eeprom Pointer to ftdi_eeprom
- \param output Buffer of 128 bytes to store eeprom image to
+ \param ftdi pointer to ftdi_context
- \retval >0: free eeprom size
+ \retval >=0: size of eeprom user area in bytes
\retval -1: eeprom size (128 bytes) exceeded by custom strings
- \retval -2: Invalid eeprom pointer
- \retval -3: Invalid cbus function setting
- \retval -4: Chip doesn't support invert
- \retval -5: Chip doesn't support high current drive
+ \retval -2: Invalid eeprom or ftdi pointer
+ \retval -3: Invalid cbus function setting (FIXME: Not in the code?)
+ \retval -4: Chip doesn't support invert (FIXME: Not in the code?)
+ \retval -5: Chip doesn't support high current drive (FIXME: Not in the code?)
+ \retval -6: No connected EEPROM or EEPROM Type unknown
*/
-int ftdi_eeprom_build(struct ftdi_eeprom *eeprom, unsigned char *output)
+int ftdi_eeprom_build(struct ftdi_context *ftdi)
{
- unsigned char i, j;
+ unsigned char i, j, eeprom_size_mask;
unsigned short checksum, value;
unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0;
- int size_check;
- const int cbus_max[5] = {13, 13, 13, 13, 9};
+ int user_area_size;
+ struct ftdi_eeprom *eeprom;
+ unsigned char * output;
- if (eeprom == NULL)
- return -2;
+ if (ftdi == NULL)
+ ftdi_error_return(-2,"No context");
+ if (ftdi->eeprom == NULL)
+ ftdi_error_return(-2,"No eeprom structure");
+
+ eeprom= ftdi->eeprom;
+ output = eeprom->buf;
+
+ if (eeprom->chip == -1)
+ ftdi_error_return(-6,"No connected EEPROM or EEPROM type unknown");
+
+ if ((eeprom->chip == 0x56) || (eeprom->chip == 0x66))
+ eeprom->size = 0x100;
+ else
+ eeprom->size = 0x80;
if (eeprom->manufacturer != NULL)
manufacturer_size = strlen(eeprom->manufacturer);
if (eeprom->serial != NULL)
serial_size = strlen(eeprom->serial);
- // highest allowed cbus value
- for (i = 0; i < 5; i++)
- {
- if ((eeprom->cbus_function[i] > cbus_max[i]) ||
- (eeprom->cbus_function[i] && eeprom->chip_type != TYPE_R)) return -3;
- }
- if (eeprom->chip_type != TYPE_R)
+ // eeprom size check
+ switch (ftdi->type)
{
- if (eeprom->invert) return -4;
- if (eeprom->high_current) return -5;
+ case TYPE_AM:
+ case TYPE_BM:
+ user_area_size = 96; // base size for strings (total of 48 characters)
+ break;
+ case TYPE_2232C:
+ user_area_size = 90; // two extra config bytes and 4 bytes PnP stuff
+ break;
+ case TYPE_R:
+ user_area_size = 88; // four extra config bytes + 4 bytes PnP stuff
+ break;
+ case TYPE_2232H: // six extra config bytes + 4 bytes PnP stuff
+ case TYPE_4232H:
+ user_area_size = 86;
+ break;
+ default:
+ user_area_size = 0;
+ break;
}
+ user_area_size -= (manufacturer_size + product_size + serial_size) * 2;
- size_check = eeprom->size;
- size_check -= 28; // 28 are always in use (fixed)
-
- // Top half of a 256byte eeprom is used just for strings and checksum
- // it seems that the FTDI chip will not read these strings from the lower half
- // Each string starts with two bytes; offset and type (0x03 for string)
- // the checksum needs two bytes, so without the string data that 8 bytes from the top half
- if (eeprom->size>=256) size_check = 120;
- size_check -= manufacturer_size*2;
- size_check -= product_size*2;
- size_check -= serial_size*2;
-
- // eeprom size exceeded?
- if (size_check < 0)
- return (-1);
+ if (user_area_size < 0)
+ ftdi_error_return(-1,"eeprom size exceeded");
// empty eeprom
- memset (output, 0, eeprom->size);
+ memset (ftdi->eeprom->buf, 0, FTDI_MAX_EEPROM_SIZE);
+
+ // Bytes and Bits set for all Types
- // Addr 00: High current IO
- output[0x00] = eeprom->high_current ? HIGH_CURRENT_DRIVE : 0;
- // Addr 01: IN endpoint size (for R type devices, different for FT2232)
- if (eeprom->chip_type == TYPE_R) {
- output[0x01] = 0x40;
- }
// Addr 02: Vendor ID
output[0x02] = eeprom->vendor_id;
output[0x03] = eeprom->vendor_id >> 8;
// Addr 06: Device release number (0400h for BM features)
output[0x06] = 0x00;
- switch (eeprom->chip_type) {
+ switch (ftdi->type)
+ {
case TYPE_AM:
output[0x07] = 0x02;
break;
case TYPE_R:
output[0x07] = 0x06;
break;
+ case TYPE_2232H:
+ output[0x07] = 0x07;
+ break;
+ case TYPE_4232H:
+ output[0x07] = 0x08;
+ break;
default:
output[0x07] = 0x00;
}
// Bit 7: always 1
// Bit 6: 1 if this device is self powered, 0 if bus powered
// Bit 5: 1 if this device uses remote wakeup
- // Bit 4: 1 if this device is battery powered
+ // Bit 4-0: reserved - 0
j = 0x80;
if (eeprom->self_powered == 1)
j |= 0x40;
output[0x08] = j;
// Addr 09: Max power consumption: max power = value * 2 mA
- output[0x09] = eeprom->max_power;
+ output[0x09] = eeprom->max_power>>1;
- // Addr 0A: Chip configuration
- // Bit 7: 0 - reserved
- // Bit 6: 0 - reserved
- // Bit 5: 0 - reserved
- // Bit 4: 1 - Change USB version
- // Bit 3: 1 - Use the serial number string
- // Bit 2: 1 - Enable suspend pull downs for lower power
- // Bit 1: 1 - Out EndPoint is Isochronous
- // Bit 0: 1 - In EndPoint is Isochronous
- //
- j = 0;
- if (eeprom->in_is_isochronous == 1)
- j = j | 1;
- if (eeprom->out_is_isochronous == 1)
- j = j | 2;
- if (eeprom->suspend_pull_downs == 1)
- j = j | 4;
- if (eeprom->use_serial == 1)
- j = j | 8;
- if (eeprom->change_usb_version == 1)
- j = j | 16;
- output[0x0A] = j;
-
- // Addr 0B: Invert data lines
- output[0x0B] = eeprom->invert & 0xff;
-
- // Addr 0C: USB version low byte when 0x0A bit 4 is set
- // Addr 0D: USB version high byte when 0x0A bit 4 is set
- if (eeprom->change_usb_version == 1)
+ if (ftdi->type != TYPE_AM)
{
- output[0x0C] = eeprom->usb_version;
- output[0x0D] = eeprom->usb_version >> 8;
+ // Addr 0A: Chip configuration
+ // Bit 7: 0 - reserved
+ // Bit 6: 0 - reserved
+ // Bit 5: 0 - reserved
+ // Bit 4: 1 - Change USB version
+ // Bit 3: 1 - Use the serial number string
+ // Bit 2: 1 - Enable suspend pull downs for lower power
+ // Bit 1: 1 - Out EndPoint is Isochronous
+ // Bit 0: 1 - In EndPoint is Isochronous
+ //
+ j = 0;
+ if (eeprom->in_is_isochronous == 1)
+ j = j | 1;
+ if (eeprom->out_is_isochronous == 1)
+ j = j | 2;
+ output[0x0A] = j;
}
+ // Dynamic content
+ // Strings start at 0x94 (TYPE_AM, TYPE_BM)
+ // 0x96 (TYPE_2232C), 0x98 (TYPE_R) and 0x9a (TYPE_x232H)
+ i = 0;
+ switch (ftdi->type)
+ {
+ case TYPE_2232H:
+ case TYPE_4232H:
+ i += 2;
+ case TYPE_R:
+ i += 2;
+ case TYPE_2232C:
+ i += 2;
+ case TYPE_AM:
+ case TYPE_BM:
+ i += 0x94;
+ }
+ /* Wrap around 0x80 for 128 byte EEPROMS (Internale and 93x46) */
+ eeprom_size_mask = eeprom->size -1;
// Addr 0E: Offset of the manufacturer string + 0x80, calculated later
// Addr 0F: Length of manufacturer string
+ // Output manufacturer
+ output[0x0E] = i; // calculate offset
+ output[i & eeprom_size_mask] = manufacturer_size*2 + 2, i++;
+ output[i & eeprom_size_mask] = 0x03, i++; // type: string
+ for (j = 0; j < manufacturer_size; j++)
+ {
+ output[i & eeprom_size_mask] = eeprom->manufacturer[j], i++;
+ output[i & eeprom_size_mask] = 0x00, i++;
+ }
output[0x0F] = manufacturer_size*2 + 2;
// Addr 10: Offset of the product string + 0x80, calculated later
// Addr 11: Length of product string
+ output[0x10] = i | 0x80; // calculate offset
+ output[i & eeprom_size_mask] = product_size*2 + 2, i++;
+ output[i & eeprom_size_mask] = 0x03, i++;
+ for (j = 0; j < product_size; j++)
+ {
+ output[i & eeprom_size_mask] = eeprom->product[j], i++;
+ output[i & eeprom_size_mask] = 0x00, i++;
+ }
output[0x11] = product_size*2 + 2;
// Addr 12: Offset of the serial string + 0x80, calculated later
// Addr 13: Length of serial string
- output[0x13] = serial_size*2 + 2;
-
- // Addr 14: CBUS function: CBUS0, CBUS1
- // Addr 15: CBUS function: CBUS2, CBUS3
- // Addr 16: CBUS function: CBUS5
- output[0x14] = eeprom->cbus_function[0] | (eeprom->cbus_function[1] << 4);
- output[0x15] = eeprom->cbus_function[2] | (eeprom->cbus_function[3] << 4);
- output[0x16] = eeprom->cbus_function[4];
- // Addr 17: Unknown
-
- // Dynamic content
- // In images produced by FTDI's FT_Prog for FT232R strings start at 0x18
- // Space till 0x18 should be considered as reserved.
- if (eeprom->chip_type >= TYPE_R) {
- i = 0x18;
- } else {
- i = 0x14;
+ output[0x12] = i | 0x80; // calculate offset
+ output[i & eeprom_size_mask] = serial_size*2 + 2, i++;
+ output[i & eeprom_size_mask] = 0x03, i++;
+ for (j = 0; j < serial_size; j++)
+ {
+ output[i & eeprom_size_mask] = eeprom->serial[j], i++;
+ output[i & eeprom_size_mask] = 0x00, i++;
}
- if (eeprom->size >= 256) i = 0x80;
-
- // Output manufacturer
- output[0x0E] = i | 0x80; // calculate offset
- output[i++] = manufacturer_size*2 + 2;
- output[i++] = 0x03; // type: string
- for (j = 0; j < manufacturer_size; j++)
+ // Legacy port name and PnP fields for FT2232 and newer chips
+ if (ftdi->type > TYPE_BM)
{
- output[i] = eeprom->manufacturer[j], i++;
- output[i] = 0x00, i++;
+ output[i & eeprom_size_mask] = 0x02; /* as seen when written with FTD2XX */
+ i++;
+ output[i & eeprom_size_mask] = 0x03; /* as seen when written with FTD2XX */
+ i++;
+ output[i & eeprom_size_mask] = eeprom->is_not_pnp; /* as seen when written with FTD2XX */
+ i++;
}
- // Output product name
- output[0x10] = i | 0x80; // calculate offset
- output[i] = product_size*2 + 2, i++;
- output[i] = 0x03, i++;
- for (j = 0; j < product_size; j++)
+ output[0x13] = serial_size*2 + 2;
+
+ if (ftdi->type > TYPE_AM) /* use_serial not used in AM devices */
{
- output[i] = eeprom->product[j], i++;
- output[i] = 0x00, i++;
+ if (eeprom->use_serial == USE_SERIAL_NUM )
+ output[0x0A] |= USE_SERIAL_NUM;
+ else
+ output[0x0A] &= ~USE_SERIAL_NUM;
}
- // Output serial
- output[0x12] = i | 0x80; // calculate offset
- output[i] = serial_size*2 + 2, i++;
- output[i] = 0x03, i++;
- for (j = 0; j < serial_size; j++)
+ /* Bytes and Bits specific to (some) types
+ Write linear, as this allows easier fixing*/
+ switch (ftdi->type)
{
- output[i] = eeprom->serial[j], i++;
- output[i] = 0x00, i++;
+ case TYPE_AM:
+ break;
+ case TYPE_BM:
+ output[0x0C] = eeprom->usb_version & 0xff;
+ output[0x0D] = (eeprom->usb_version>>8) & 0xff;
+ if (eeprom->use_usb_version == USE_USB_VERSION_BIT)
+ output[0x0A] |= USE_USB_VERSION_BIT;
+ else
+ output[0x0A] &= ~USE_USB_VERSION_BIT;
+
+ break;
+ case TYPE_2232C:
+
+ output[0x00] = (eeprom->channel_a_type);
+ if ( eeprom->channel_a_driver == DRIVER_VCP)
+ output[0x00] |= DRIVER_VCP;
+ else
+ output[0x00] &= ~DRIVER_VCP;
+
+ if ( eeprom->high_current_a == HIGH_CURRENT_DRIVE)
+ output[0x00] |= HIGH_CURRENT_DRIVE;
+ else
+ output[0x00] &= ~HIGH_CURRENT_DRIVE;
+
+ output[0x01] = (eeprom->channel_b_type);
+ if ( eeprom->channel_b_driver == DRIVER_VCP)
+ output[0x01] |= DRIVER_VCP;
+ else
+ output[0x01] &= ~DRIVER_VCP;
+
+ if ( eeprom->high_current_b == HIGH_CURRENT_DRIVE)
+ output[0x01] |= HIGH_CURRENT_DRIVE;
+ else
+ output[0x01] &= ~HIGH_CURRENT_DRIVE;
+
+ if (eeprom->in_is_isochronous == 1)
+ output[0x0A] |= 0x1;
+ else
+ output[0x0A] &= ~0x1;
+ if (eeprom->out_is_isochronous == 1)
+ output[0x0A] |= 0x2;
+ else
+ output[0x0A] &= ~0x2;
+ if (eeprom->suspend_pull_downs == 1)
+ output[0x0A] |= 0x4;
+ else
+ output[0x0A] &= ~0x4;
+ if (eeprom->use_usb_version == USE_USB_VERSION_BIT)
+ output[0x0A] |= USE_USB_VERSION_BIT;
+ else
+ output[0x0A] &= ~USE_USB_VERSION_BIT;
+
+ output[0x0C] = eeprom->usb_version & 0xff;
+ output[0x0D] = (eeprom->usb_version>>8) & 0xff;
+ output[0x14] = eeprom->chip;
+ break;
+ case TYPE_R:
+ if (eeprom->high_current == HIGH_CURRENT_DRIVE_R)
+ output[0x00] |= HIGH_CURRENT_DRIVE_R;
+ output[0x01] = 0x40; /* Hard coded Endpoint Size*/
+
+ if (eeprom->suspend_pull_downs == 1)
+ output[0x0A] |= 0x4;
+ else
+ output[0x0A] &= ~0x4;
+ output[0x0B] = eeprom->invert;
+ output[0x0C] = eeprom->usb_version & 0xff;
+ output[0x0D] = (eeprom->usb_version>>8) & 0xff;
+
+ if (eeprom->cbus_function[0] > CBUS_BB)
+ output[0x14] = CBUS_TXLED;
+ else
+ output[0x14] = eeprom->cbus_function[0];
+
+ if (eeprom->cbus_function[1] > CBUS_BB)
+ output[0x14] |= CBUS_RXLED<<4;
+ else
+ output[0x14] |= eeprom->cbus_function[1]<<4;
+
+ if (eeprom->cbus_function[2] > CBUS_BB)
+ output[0x15] = CBUS_TXDEN;
+ else
+ output[0x15] = eeprom->cbus_function[2];
+
+ if (eeprom->cbus_function[3] > CBUS_BB)
+ output[0x15] |= CBUS_PWREN<<4;
+ else
+ output[0x15] |= eeprom->cbus_function[3]<<4;
+
+ if (eeprom->cbus_function[4] > CBUS_CLK6)
+ output[0x16] = CBUS_SLEEP;
+ else
+ output[0x16] = eeprom->cbus_function[4];
+ break;
+ case TYPE_2232H:
+ output[0x00] = (eeprom->channel_a_type);
+ if ( eeprom->channel_a_driver == DRIVER_VCP)
+ output[0x00] |= DRIVER_VCP;
+ else
+ output[0x00] &= ~DRIVER_VCP;
+
+ output[0x01] = (eeprom->channel_b_type);
+ if ( eeprom->channel_b_driver == DRIVER_VCP)
+ output[0x01] |= DRIVER_VCP;
+ else
+ output[0x01] &= ~DRIVER_VCP;
+ if (eeprom->suspend_dbus7 == SUSPEND_DBUS7_BIT)
+ output[0x01] |= SUSPEND_DBUS7_BIT;
+ else
+ output[0x01] &= ~SUSPEND_DBUS7_BIT;
+
+ if (eeprom->suspend_pull_downs == 1)
+ output[0x0A] |= 0x4;
+ else
+ output[0x0A] &= ~0x4;
+
+ if (eeprom->group0_drive > DRIVE_16MA)
+ output[0x0c] |= DRIVE_16MA;
+ else
+ output[0x0c] |= eeprom->group0_drive;
+ if (eeprom->group0_schmitt == IS_SCHMITT)
+ output[0x0c] |= IS_SCHMITT;
+ if (eeprom->group0_slew == SLOW_SLEW)
+ output[0x0c] |= SLOW_SLEW;
+
+ if (eeprom->group1_drive > DRIVE_16MA)
+ output[0x0c] |= DRIVE_16MA<<4;
+ else
+ output[0x0c] |= eeprom->group1_drive<<4;
+ if (eeprom->group1_schmitt == IS_SCHMITT)
+ output[0x0c] |= IS_SCHMITT<<4;
+ if (eeprom->group1_slew == SLOW_SLEW)
+ output[0x0c] |= SLOW_SLEW<<4;
+
+ if (eeprom->group2_drive > DRIVE_16MA)
+ output[0x0d] |= DRIVE_16MA;
+ else
+ output[0x0d] |= eeprom->group2_drive;
+ if (eeprom->group2_schmitt == IS_SCHMITT)
+ output[0x0d] |= IS_SCHMITT;
+ if (eeprom->group2_slew == SLOW_SLEW)
+ output[0x0d] |= SLOW_SLEW;
+
+ if (eeprom->group3_drive > DRIVE_16MA)
+ output[0x0d] |= DRIVE_16MA<<4;
+ else
+ output[0x0d] |= eeprom->group3_drive<<4;
+ if (eeprom->group3_schmitt == IS_SCHMITT)
+ output[0x0d] |= IS_SCHMITT<<4;
+ if (eeprom->group3_slew == SLOW_SLEW)
+ output[0x0d] |= SLOW_SLEW<<4;
+
+ output[0x18] = eeprom->chip;
+
+ break;
+ case TYPE_4232H:
+ fprintf(stderr,"FIXME: Build FT4232H specific EEPROM settings\n");
}
// calculate checksum
output[eeprom->size-2] = checksum;
output[eeprom->size-1] = checksum >> 8;
- return size_check;
+ return user_area_size;
}
/**
Decode binary EEPROM image into an ftdi_eeprom structure.
- \param eeprom Pointer to ftdi_eeprom which will be filled in.
- \param buf Buffer of \a size bytes of raw eeprom data
- \param size size size of eeprom data in bytes
+ \param ftdi pointer to ftdi_context
+ \param verbose Decode EEPROM on stdout
\retval 0: all fine
\retval -1: something went wrong
FIXME: How to pass size? How to handle size field in ftdi_eeprom?
FIXME: Strings are malloc'ed here and should be freed somewhere
*/
-int ftdi_eeprom_decode(struct ftdi_eeprom *eeprom, unsigned char *buf, int size)
+int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose)
{
unsigned char i, j;
unsigned short checksum, eeprom_checksum, value;
unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0;
- int eeprom_size = 128;
-
- if (eeprom == NULL)
- return -1;
-#if 0
- size_check = eeprom->size;
- size_check -= 28; // 28 are always in use (fixed)
-
- // Top half of a 256byte eeprom is used just for strings and checksum
- // it seems that the FTDI chip will not read these strings from the lower half
- // Each string starts with two bytes; offset and type (0x03 for string)
- // the checksum needs two bytes, so without the string data that 8 bytes from the top half
- if (eeprom->size>=256)size_check = 120;
- size_check -= manufacturer_size*2;
- size_check -= product_size*2;
- size_check -= serial_size*2;
-
- // eeprom size exceeded?
- if (size_check < 0)
- return (-1);
-#endif
+ int eeprom_size;
+ struct ftdi_eeprom *eeprom;
+ unsigned char *buf = ftdi->eeprom->buf;
+ int release;
- // empty eeprom struct
- memset(eeprom, 0, sizeof(struct ftdi_eeprom));
+ if (ftdi == NULL)
+ ftdi_error_return(-1,"No context");
+ if (ftdi->eeprom == NULL)
+ ftdi_error_return(-1,"No eeprom structure");
- // Addr 00: High current IO
- eeprom->high_current = (buf[0x02] & HIGH_CURRENT_DRIVE);
+ eeprom = ftdi->eeprom;
+ eeprom_size = eeprom->size;
// Addr 02: Vendor ID
eeprom->vendor_id = buf[0x02] + (buf[0x03] << 8);
// Addr 04: Product ID
eeprom->product_id = buf[0x04] + (buf[0x05] << 8);
- value = buf[0x06] + (buf[0x07]<<8);
- switch (value)
- {
- case 0x0600:
- eeprom->chip_type = TYPE_R;
- break;
- case 0x0400:
- eeprom->chip_type = TYPE_BM;
- break;
- case 0x0200:
- eeprom->chip_type = TYPE_AM;
- break;
- default: // Unknown device
- eeprom->chip_type = 0;
- break;
- }
+ release = buf[0x06] + (buf[0x07]<<8);
// Addr 08: Config descriptor
// Bit 7: always 1
// Bit 6: 1 if this device is self powered, 0 if bus powered
// Bit 5: 1 if this device uses remote wakeup
- // Bit 4: 1 if this device is battery powered
- j = buf[0x08];
- if (j&0x40) eeprom->self_powered = 1;
- if (j&0x20) eeprom->remote_wakeup = 1;
+ eeprom->self_powered = buf[0x08] & 0x40;
+ eeprom->remote_wakeup = buf[0x08] & 0x20;
// Addr 09: Max power consumption: max power = value * 2 mA
eeprom->max_power = buf[0x09];
// Bit 7: 0 - reserved
// Bit 6: 0 - reserved
// Bit 5: 0 - reserved
- // Bit 4: 1 - Change USB version
+ // Bit 4: 1 - Change USB version on BM and 2232C
// Bit 3: 1 - Use the serial number string
// Bit 2: 1 - Enable suspend pull downs for lower power
// Bit 1: 1 - Out EndPoint is Isochronous
// Bit 0: 1 - In EndPoint is Isochronous
//
- j = buf[0x0A];
- if (j&0x01) eeprom->in_is_isochronous = 1;
- if (j&0x02) eeprom->out_is_isochronous = 1;
- if (j&0x04) eeprom->suspend_pull_downs = 1;
- if (j&0x08) eeprom->use_serial = 1;
- if (j&0x10) eeprom->change_usb_version = 1;
+ eeprom->in_is_isochronous = buf[0x0A]&0x01;
+ eeprom->out_is_isochronous = buf[0x0A]&0x02;
+ eeprom->suspend_pull_downs = buf[0x0A]&0x04;
+ eeprom->use_serial = buf[0x0A] & USE_SERIAL_NUM;
+ eeprom->use_usb_version = buf[0x0A] & USE_USB_VERSION_BIT;
- // Addr 0B: Invert data lines
- eeprom->invert = buf[0x0B];
-
- // Addr 0C: USB version low byte when 0x0A bit 4 is set
- // Addr 0D: USB version high byte when 0x0A bit 4 is set
- if (eeprom->change_usb_version == 1)
- {
- eeprom->usb_version = buf[0x0C] + (buf[0x0D] << 8);
- }
+ // Addr 0C: USB version low byte when 0x0A
+ // Addr 0D: USB version high byte when 0x0A
+ eeprom->usb_version = buf[0x0C] + (buf[0x0D] << 8);
// Addr 0E: Offset of the manufacturer string + 0x80, calculated later
// Addr 0F: Length of manufacturer string
manufacturer_size = buf[0x0F]/2;
- if (manufacturer_size > 0) eeprom->manufacturer = malloc(manufacturer_size);
+ if (eeprom->manufacturer)
+ free(eeprom->manufacturer);
+ if (manufacturer_size > 0)
+ {
+ eeprom->manufacturer = malloc(manufacturer_size);
+ if (eeprom->manufacturer)
+ {
+ // Decode manufacturer
+ i = buf[0x0E] & (eeprom_size -1); // offset
+ for (j=0;j<manufacturer_size-1;j++)
+ {
+ eeprom->manufacturer[j] = buf[2*j+i+2];
+ }
+ eeprom->manufacturer[j] = '\0';
+ }
+ }
else eeprom->manufacturer = NULL;
// Addr 10: Offset of the product string + 0x80, calculated later
// Addr 11: Length of product string
+ if (eeprom->product)
+ free(eeprom->product);
product_size = buf[0x11]/2;
- if (product_size > 0) eeprom->product = malloc(product_size);
+ if (product_size > 0)
+ {
+ eeprom->product = malloc(product_size);
+ if (eeprom->product)
+ {
+ // Decode product name
+ i = buf[0x10] & (eeprom_size -1); // offset
+ for (j=0;j<product_size-1;j++)
+ {
+ eeprom->product[j] = buf[2*j+i+2];
+ }
+ eeprom->product[j] = '\0';
+ }
+ }
else eeprom->product = NULL;
// Addr 12: Offset of the serial string + 0x80, calculated later
// Addr 13: Length of serial string
+ if (eeprom->serial)
+ free(eeprom->serial);
serial_size = buf[0x13]/2;
- if (serial_size > 0) eeprom->serial = malloc(serial_size);
- else eeprom->serial = NULL;
-
- // Addr 14: CBUS function: CBUS0, CBUS1
- // Addr 15: CBUS function: CBUS2, CBUS3
- // Addr 16: CBUS function: CBUS5
- if (eeprom->chip_type == TYPE_R) {
- eeprom->cbus_function[0] = buf[0x14] & 0x0f;
- eeprom->cbus_function[1] = (buf[0x14] >> 4) & 0x0f;
- eeprom->cbus_function[2] = buf[0x15] & 0x0f;
- eeprom->cbus_function[3] = (buf[0x15] >> 4) & 0x0f;
- eeprom->cbus_function[4] = buf[0x16] & 0x0f;
- } else {
- for (j=0; j<5; j++) eeprom->cbus_function[j] = 0;
- }
-
- // Decode manufacturer
- i = buf[0x0E] & 0x7f; // offset
- for (j=0;j<manufacturer_size-1;j++)
+ if (serial_size > 0)
{
- eeprom->manufacturer[j] = buf[2*j+i+2];
- }
- eeprom->manufacturer[j] = '\0';
-
- // Decode product name
- i = buf[0x10] & 0x7f; // offset
- for (j=0;j<product_size-1;j++)
- {
- eeprom->product[j] = buf[2*j+i+2];
- }
- eeprom->product[j] = '\0';
-
- // Decode serial
- i = buf[0x12] & 0x7f; // offset
- for (j=0;j<serial_size-1;j++)
- {
- eeprom->serial[j] = buf[2*j+i+2];
+ eeprom->serial = malloc(serial_size);
+ if (eeprom->serial)
+ {
+ // Decode serial
+ i = buf[0x12] & (eeprom_size -1); // offset
+ for (j=0;j<serial_size-1;j++)
+ {
+ eeprom->serial[j] = buf[2*j+i+2];
+ }
+ eeprom->serial[j] = '\0';
+ }
}
- eeprom->serial[j] = '\0';
+ else eeprom->serial = NULL;
// verify checksum
checksum = 0xAAAA;
if (eeprom_checksum != checksum)
{
fprintf(stderr, "Checksum Error: %04x %04x\n", checksum, eeprom_checksum);
- return -1;
+ ftdi_error_return(-1,"EEPROM checksum error");
+ }
+
+ eeprom->channel_a_type = 0;
+ if ((ftdi->type == TYPE_AM) || (ftdi->type == TYPE_BM))
+ {
+ eeprom->chip = -1;
+ }
+ else if (ftdi->type == TYPE_2232C)
+ {
+ eeprom->channel_a_type = buf[0x00] & 0x7;
+ eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP;
+ eeprom->high_current_a = buf[0x00] & HIGH_CURRENT_DRIVE;
+ eeprom->channel_b_type = buf[0x01] & 0x7;
+ eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP;
+ eeprom->high_current_b = buf[0x01] & HIGH_CURRENT_DRIVE;
+ eeprom->chip = buf[0x14];
+ }
+ else if (ftdi->type == TYPE_R)
+ {
+ /* TYPE_R flags D2XX, not VCP as all others*/
+ eeprom->channel_a_driver = (~buf[0x00]) & DRIVER_VCP;
+ eeprom->high_current = buf[0x00] & HIGH_CURRENT_DRIVE_R;
+ if ( (buf[0x01]&0x40) != 0x40)
+ fprintf(stderr,
+ "TYPE_R EEPROM byte[0x01] Bit 6 unexpected Endpoint size."
+ " If this happened with the\n"
+ " EEPROM programmed by FTDI tools, please report "
+ "to libftdi@developer.intra2net.com\n");
+
+ eeprom->chip = buf[0x16];
+ // Addr 0B: Invert data lines
+ // Works only on FT232R, not FT245R, but no way to distinguish
+ eeprom->invert = buf[0x0B];
+ // Addr 14: CBUS function: CBUS0, CBUS1
+ // Addr 15: CBUS function: CBUS2, CBUS3
+ // Addr 16: CBUS function: CBUS5
+ eeprom->cbus_function[0] = buf[0x14] & 0x0f;
+ eeprom->cbus_function[1] = (buf[0x14] >> 4) & 0x0f;
+ eeprom->cbus_function[2] = buf[0x15] & 0x0f;
+ eeprom->cbus_function[3] = (buf[0x15] >> 4) & 0x0f;
+ eeprom->cbus_function[4] = buf[0x16] & 0x0f;
+ }
+ else if ((ftdi->type == TYPE_2232H) ||(ftdi->type == TYPE_4232H))
+ {
+ eeprom->channel_a_type = buf[0x00] & 0x7;
+ eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP;
+ eeprom->channel_b_type = buf[0x01] & 0x7;
+ eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP;
+
+ if (ftdi->type == TYPE_2232H)
+ eeprom->suspend_dbus7 = buf[0x01] & SUSPEND_DBUS7_BIT;
+
+ eeprom->chip = buf[0x18];
+ eeprom->group0_drive = buf[0x0c] & DRIVE_16MA;
+ eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT;
+ eeprom->group0_slew = buf[0x0c] & SLOW_SLEW;
+ eeprom->group1_drive = (buf[0x0c] >> 4) & 0x3;
+ eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT;
+ eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW;
+ eeprom->group2_drive = buf[0x0d] & DRIVE_16MA;
+ eeprom->group2_schmitt = buf[0x0d] & IS_SCHMITT;
+ eeprom->group2_slew = buf[0x0d] & SLOW_SLEW;
+ eeprom->group3_drive = (buf[0x0d] >> 4) & DRIVE_16MA;
+ eeprom->group3_schmitt = (buf[0x0d] >> 4) & IS_SCHMITT;
+ eeprom->group3_slew = (buf[0x0d] >> 4) & SLOW_SLEW;
+ }
+
+ if (verbose)
+ {
+ char *channel_mode[] = {"UART","245","CPU", "unknown", "OPTO"};
+ fprintf(stdout, "VID: 0x%04x\n",eeprom->vendor_id);
+ fprintf(stdout, "PID: 0x%04x\n",eeprom->product_id);
+ fprintf(stdout, "Release: 0x%04x\n",release);
+
+ if (eeprom->self_powered)
+ fprintf(stdout, "Self-Powered%s", (eeprom->remote_wakeup)?", USB Remote Wake Up\n":"\n");
+ else
+ fprintf(stdout, "Bus Powered: %3d mA%s", eeprom->max_power * 2,
+ (eeprom->remote_wakeup)?" USB Remote Wake Up\n":"\n");
+ if (eeprom->manufacturer)
+ fprintf(stdout, "Manufacturer: %s\n",eeprom->manufacturer);
+ if (eeprom->product)
+ fprintf(stdout, "Product: %s\n",eeprom->product);
+ if (eeprom->serial)
+ fprintf(stdout, "Serial: %s\n",eeprom->serial);
+ fprintf(stdout, "Checksum : %04x\n", checksum);
+ if (ftdi->type == TYPE_R)
+ fprintf(stdout, "Internal EEPROM\n");
+ else if (eeprom->chip >= 0x46)
+ fprintf(stdout, "Attached EEPROM: 93x%02x\n", eeprom->chip);
+ if (eeprom->suspend_dbus7)
+ fprintf(stdout, "Suspend on DBUS7\n");
+ if (eeprom->suspend_pull_downs)
+ fprintf(stdout, "Pull IO pins low during suspend\n");
+ if (eeprom->remote_wakeup)
+ fprintf(stdout, "Enable Remote Wake Up\n");
+ fprintf(stdout, "PNP: %d\n",(eeprom->is_not_pnp)?0:1);
+ if (ftdi->type >= TYPE_2232C)
+ fprintf(stdout,"Channel A has Mode %s%s%s\n",
+ channel_mode[eeprom->channel_a_type],
+ (eeprom->channel_a_driver)?" VCP":"",
+ (eeprom->high_current_a)?" High Current IO":"");
+ if ((ftdi->type >= TYPE_2232C) && (ftdi->type != TYPE_R))
+ fprintf(stdout,"Channel B has Mode %s%s%s\n",
+ channel_mode[eeprom->channel_b_type],
+ (eeprom->channel_b_driver)?" VCP":"",
+ (eeprom->high_current_b)?" High Current IO":"");
+ if (((ftdi->type == TYPE_BM) || (ftdi->type == TYPE_2232C)) &&
+ eeprom->use_usb_version == USE_USB_VERSION_BIT)
+ fprintf(stdout,"Use explicit USB Version %04x\n",eeprom->usb_version);
+
+ if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H))
+ {
+ fprintf(stdout,"%s has %d mA drive%s%s\n",
+ (ftdi->type == TYPE_2232H)?"AL":"A",
+ (eeprom->group0_drive+1) *4,
+ (eeprom->group0_schmitt)?" Schmitt Input":"",
+ (eeprom->group0_slew)?" Slow Slew":"");
+ fprintf(stdout,"%s has %d mA drive%s%s\n",
+ (ftdi->type == TYPE_2232H)?"AH":"B",
+ (eeprom->group1_drive+1) *4,
+ (eeprom->group1_schmitt)?" Schmitt Input":"",
+ (eeprom->group1_slew)?" Slow Slew":"");
+ fprintf(stdout,"%s has %d mA drive%s%s\n",
+ (ftdi->type == TYPE_2232H)?"BL":"C",
+ (eeprom->group2_drive+1) *4,
+ (eeprom->group2_schmitt)?" Schmitt Input":"",
+ (eeprom->group2_slew)?" Slow Slew":"");
+ fprintf(stdout,"%s has %d mA drive%s%s\n",
+ (ftdi->type == TYPE_2232H)?"BH":"D",
+ (eeprom->group3_drive+1) *4,
+ (eeprom->group3_schmitt)?" Schmitt Input":"",
+ (eeprom->group3_slew)?" Slow Slew":"");
+ }
+ if (ftdi->type == TYPE_R)
+ {
+ char *cbus_mux[] = {"TXDEN","PWREN","RXLED", "TXLED","TX+RXLED",
+ "SLEEP","CLK48","CLK24","CLK12","CLK6",
+ "IOMODE","BB_WR","BB_RD"
+ };
+ char *cbus_BB[] = {"RXF","TXE","RD", "WR"};
+
+ if (eeprom->invert)
+ {
+ char *r_bits[] = {"TXD","RXD","RTS", "CTS","DTR","DSR","DCD","RI"};
+ fprintf(stdout,"Inverted bits:");
+ for (i=0; i<8; i++)
+ if ((eeprom->invert & (1<<i)) == (1<<i))
+ fprintf(stdout," %s",r_bits[i]);
+ fprintf(stdout,"\n");
+ }
+ for (i=0; i<5; i++)
+ {
+ if (eeprom->cbus_function[i]<CBUS_BB)
+ fprintf(stdout,"C%d Function: %s\n", i,
+ cbus_mux[eeprom->cbus_function[i]]);
+ else
+ {
+ /* FIXME for Uwe: This results in an access above array bounds.
+ Also I couldn't find documentation about this mode.
+ fprintf(stdout,"C%d BB Function: %s\n", i,
+ cbus_BB[i]);
+ */
+ fprintf(stdout, "Unknown CBUS mode. Might be special mode?\n");
+ (void)cbus_BB;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/**
+ Get a value from the decoded EEPROM structure
+
+ \param ftdi pointer to ftdi_context
+ \param value_name Enum of the value to query
+ \param value Pointer to store read value
+
+ \retval 0: all fine
+ \retval -1: Value doesn't exist
+*/
+int ftdi_get_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int* value)
+{
+ switch (value_name)
+ {
+ case VENDOR_ID:
+ *value = ftdi->eeprom->vendor_id;
+ break;
+ case PRODUCT_ID:
+ *value = ftdi->eeprom->product_id;
+ break;
+ case SELF_POWERED:
+ *value = ftdi->eeprom->self_powered;
+ break;
+ case REMOTE_WAKEUP:
+ *value = ftdi->eeprom->remote_wakeup;
+ break;
+ case IS_NOT_PNP:
+ *value = ftdi->eeprom->is_not_pnp;
+ break;
+ case SUSPEND_DBUS7:
+ *value = ftdi->eeprom->suspend_dbus7;
+ break;
+ case IN_IS_ISOCHRONOUS:
+ *value = ftdi->eeprom->in_is_isochronous;
+ break;
+ case SUSPEND_PULL_DOWNS:
+ *value = ftdi->eeprom->suspend_pull_downs;
+ break;
+ case USE_SERIAL:
+ *value = ftdi->eeprom->use_serial;
+ break;
+ case USB_VERSION:
+ *value = ftdi->eeprom->usb_version;
+ break;
+ case MAX_POWER:
+ *value = ftdi->eeprom->max_power;
+ break;
+ case CHANNEL_A_TYPE:
+ *value = ftdi->eeprom->channel_a_type;
+ break;
+ case CHANNEL_B_TYPE:
+ *value = ftdi->eeprom->channel_b_type;
+ break;
+ case CHANNEL_A_DRIVER:
+ *value = ftdi->eeprom->channel_a_driver;
+ break;
+ case CHANNEL_B_DRIVER:
+ *value = ftdi->eeprom->channel_b_driver;
+ break;
+ case CBUS_FUNCTION_0:
+ *value = ftdi->eeprom->cbus_function[0];
+ break;
+ case CBUS_FUNCTION_1:
+ *value = ftdi->eeprom->cbus_function[1];
+ break;
+ case CBUS_FUNCTION_2:
+ *value = ftdi->eeprom->cbus_function[2];
+ break;
+ case CBUS_FUNCTION_3:
+ *value = ftdi->eeprom->cbus_function[3];
+ break;
+ case CBUS_FUNCTION_4:
+ *value = ftdi->eeprom->cbus_function[4];
+ break;
+ case HIGH_CURRENT:
+ *value = ftdi->eeprom->high_current;
+ break;
+ case HIGH_CURRENT_A:
+ *value = ftdi->eeprom->high_current_a;
+ break;
+ case HIGH_CURRENT_B:
+ *value = ftdi->eeprom->high_current_b;
+ break;
+ case INVERT:
+ *value = ftdi->eeprom->invert;
+ break;
+ case GROUP0_DRIVE:
+ *value = ftdi->eeprom->group0_drive;
+ break;
+ case GROUP0_SCHMITT:
+ *value = ftdi->eeprom->group0_schmitt;
+ break;
+ case GROUP0_SLEW:
+ *value = ftdi->eeprom->group0_slew;
+ break;
+ case GROUP1_DRIVE:
+ *value = ftdi->eeprom->group1_drive;
+ break;
+ case GROUP1_SCHMITT:
+ *value = ftdi->eeprom->group1_schmitt;
+ break;
+ case GROUP1_SLEW:
+ *value = ftdi->eeprom->group1_slew;
+ break;
+ case GROUP2_DRIVE:
+ *value = ftdi->eeprom->group2_drive;
+ break;
+ case GROUP2_SCHMITT:
+ *value = ftdi->eeprom->group2_schmitt;
+ break;
+ case GROUP2_SLEW:
+ *value = ftdi->eeprom->group2_slew;
+ break;
+ case GROUP3_DRIVE:
+ *value = ftdi->eeprom->group3_drive;
+ break;
+ case GROUP3_SCHMITT:
+ *value = ftdi->eeprom->group3_schmitt;
+ break;
+ case GROUP3_SLEW:
+ *value = ftdi->eeprom->group3_slew;
+ break;
+ case CHIP_TYPE:
+ *value = ftdi->eeprom->chip;
+ break;
+ case CHIP_SIZE:
+ *value = ftdi->eeprom->size;
+ break;
+ default:
+ ftdi_error_return(-1, "Request for unknown EEPROM value");
}
+ return 0;
+}
+
+/**
+ Set a value in the decoded EEPROM Structure
+ No parameter checking is performed
+
+ \param ftdi pointer to ftdi_context
+ \param value_name Enum of the value to set
+ \param value to set
+
+ \retval 0: all fine
+ \retval -1: Value doesn't exist
+ \retval -2: Value not user settable
+*/
+int ftdi_set_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int value)
+{
+ switch (value_name)
+ {
+ case VENDOR_ID:
+ ftdi->eeprom->vendor_id = value;
+ break;
+ case PRODUCT_ID:
+ ftdi->eeprom->product_id = value;
+ break;
+ case SELF_POWERED:
+ ftdi->eeprom->self_powered = value;
+ break;
+ case REMOTE_WAKEUP:
+ ftdi->eeprom->remote_wakeup = value;
+ break;
+ case IS_NOT_PNP:
+ ftdi->eeprom->is_not_pnp = value;
+ break;
+ case SUSPEND_DBUS7:
+ ftdi->eeprom->suspend_dbus7 = value;
+ break;
+ case IN_IS_ISOCHRONOUS:
+ ftdi->eeprom->in_is_isochronous = value;
+ break;
+ case SUSPEND_PULL_DOWNS:
+ ftdi->eeprom->suspend_pull_downs = value;
+ break;
+ case USE_SERIAL:
+ ftdi->eeprom->use_serial = value;
+ break;
+ case USB_VERSION:
+ ftdi->eeprom->usb_version = value;
+ break;
+ case MAX_POWER:
+ ftdi->eeprom->max_power = value;
+ break;
+ case CHANNEL_A_TYPE:
+ ftdi->eeprom->channel_a_type = value;
+ break;
+ case CHANNEL_B_TYPE:
+ ftdi->eeprom->channel_b_type = value;
+ break;
+ case CHANNEL_A_DRIVER:
+ ftdi->eeprom->channel_a_driver = value;
+ break;
+ case CHANNEL_B_DRIVER:
+ ftdi->eeprom->channel_b_driver = value;
+ break;
+ case CBUS_FUNCTION_0:
+ ftdi->eeprom->cbus_function[0] = value;
+ break;
+ case CBUS_FUNCTION_1:
+ ftdi->eeprom->cbus_function[1] = value;
+ break;
+ case CBUS_FUNCTION_2:
+ ftdi->eeprom->cbus_function[2] = value;
+ break;
+ case CBUS_FUNCTION_3:
+ ftdi->eeprom->cbus_function[3] = value;
+ break;
+ case CBUS_FUNCTION_4:
+ ftdi->eeprom->cbus_function[4] = value;
+ break;
+ case HIGH_CURRENT:
+ ftdi->eeprom->high_current = value;
+ break;
+ case HIGH_CURRENT_A:
+ ftdi->eeprom->high_current_a = value;
+ break;
+ case HIGH_CURRENT_B:
+ ftdi->eeprom->high_current_b = value;
+ break;
+ case INVERT:
+ ftdi->eeprom->invert = value;
+ break;
+ case GROUP0_DRIVE:
+ ftdi->eeprom->group0_drive = value;
+ break;
+ case GROUP0_SCHMITT:
+ ftdi->eeprom->group0_schmitt = value;
+ break;
+ case GROUP0_SLEW:
+ ftdi->eeprom->group0_slew = value;
+ break;
+ case GROUP1_DRIVE:
+ ftdi->eeprom->group1_drive = value;
+ break;
+ case GROUP1_SCHMITT:
+ ftdi->eeprom->group1_schmitt = value;
+ break;
+ case GROUP1_SLEW:
+ ftdi->eeprom->group1_slew = value;
+ break;
+ case GROUP2_DRIVE:
+ ftdi->eeprom->group2_drive = value;
+ break;
+ case GROUP2_SCHMITT:
+ ftdi->eeprom->group2_schmitt = value;
+ break;
+ case GROUP2_SLEW:
+ ftdi->eeprom->group2_slew = value;
+ break;
+ case GROUP3_DRIVE:
+ ftdi->eeprom->group3_drive = value;
+ break;
+ case GROUP3_SCHMITT:
+ ftdi->eeprom->group3_schmitt = value;
+ break;
+ case GROUP3_SLEW:
+ ftdi->eeprom->group3_slew = value;
+ break;
+ case CHIP_TYPE:
+ ftdi->eeprom->chip = value;
+ break;
+ case CHIP_SIZE:
+ ftdi_error_return(-2, "EEPROM Value can't be changed");
+ default :
+ ftdi_error_return(-1, "Request to unknown EEPROM value");
+ }
+ return 0;
+}
+
+/** Get the read-only buffer to the binary EEPROM content
+
+ \param ftdi pointer to ftdi_context
+ \param buf buffer to receive EEPROM content
+ \param size Size of receiving buffer
+
+ \retval 0: All fine
+ \retval -1: struct ftdi_contxt or ftdi_eeprom missing
+ \retval -2: Not enough room to store eeprom
+*/
+int ftdi_get_eeprom_buf(struct ftdi_context *ftdi, unsigned char * buf, int size)
+{
+ if (!ftdi || !(ftdi->eeprom))
+ ftdi_error_return(-1, "No appropriate structure");
+
+ if (!buf || size < ftdi->eeprom->size)
+ ftdi_error_return(-1, "Not enough room to store eeprom");
+
+ // Only copy up to FTDI_MAX_EEPROM_SIZE bytes
+ if (size > FTDI_MAX_EEPROM_SIZE)
+ size = FTDI_MAX_EEPROM_SIZE;
+
+ memcpy(buf, ftdi->eeprom->buf, size);
return 0;
}
Read eeprom
\param ftdi pointer to ftdi_context
- \param eeprom Pointer to store eeprom into
\retval 0: all fine
\retval -1: read failed
\retval -2: USB device unavailable
*/
-int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom)
+int ftdi_read_eeprom(struct ftdi_context *ftdi)
{
int i;
+ unsigned char *buf;
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
+ buf = ftdi->eeprom->buf;
- for (i = 0; i < ftdi->eeprom_size/2; i++)
+ for (i = 0; i < FTDI_MAX_EEPROM_SIZE/2; i++)
{
- if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_READ_EEPROM_REQUEST, 0, i, eeprom+(i*2), 2, ftdi->usb_read_timeout) != 2)
+ if (libusb_control_transfer(
+ ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE,SIO_READ_EEPROM_REQUEST, 0, i,
+ buf+(i*2), 2, ftdi->usb_read_timeout) != 2)
ftdi_error_return(-1, "reading eeprom failed");
}
+ if (ftdi->type == TYPE_R)
+ ftdi->eeprom->size = 0x80;
+ /* Guesses size of eeprom by comparing halves
+ - will not work with blank eeprom */
+ else if (strrchr((const char *)buf, 0xff) == ((const char *)buf +FTDI_MAX_EEPROM_SIZE -1))
+ ftdi->eeprom->size = -1;
+ else if (memcmp(buf,&buf[0x80],0x80) == 0)
+ ftdi->eeprom->size = 0x80;
+ else if (memcmp(buf,&buf[0x40],0x40) == 0)
+ ftdi->eeprom->size = 0x40;
+ else
+ ftdi->eeprom->size = 0x100;
return 0;
}
}
/**
- Guesses size of eeprom by reading eeprom and comparing halves - will not work with blank eeprom
- Call this function then do a write then call again to see if size changes, if so write again.
+ Write eeprom location
\param ftdi pointer to ftdi_context
- \param eeprom Pointer to store eeprom into
- \param maxsize the size of the buffer to read into
+ \param eeprom_addr Address of eeprom location to be written
+ \param eeprom_val Value to be written
- \retval -1: eeprom read failed
+ \retval 0: all fine
+ \retval -1: write failed
\retval -2: USB device unavailable
- \retval >=0: size of eeprom
+ \retval -3: Invalid access to checksum protected area below 0x80
+ \retval -4: Device can't access unprotected area
+ \retval -5: Reading chip type failed
*/
-int ftdi_read_eeprom_getsize(struct ftdi_context *ftdi, unsigned char *eeprom, int maxsize)
+int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr,
+ unsigned short eeprom_val)
{
- int i=0,j,minsize=32;
- int size=minsize;
+ int chip_type_location;
+ unsigned short chip_type;
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
- do
- {
- for (j = 0; i < maxsize/2 && j<size; j++)
- {
- if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE,
- SIO_READ_EEPROM_REQUEST, 0, i,
- eeprom+(i*2), 2, ftdi->usb_read_timeout) != 2)
- ftdi_error_return(-1, "eeprom read failed");
- i++;
- }
- size*=2;
- }
- while (size<=maxsize && memcmp(eeprom,&eeprom[size/2],size/2)!=0);
+ if (eeprom_addr <0x80)
+ ftdi_error_return(-2, "Invalid access to checksum protected area below 0x80");
- return size/2;
-}
-/**
- Write eeprom location
-
- \param ftdi pointer to ftdi_context
- \param eeprom_addr Address of eeprom location to be written
- \param eeprom_val Value to be written
+ switch (ftdi->type)
+ {
+ case TYPE_BM:
+ case TYPE_2232C:
+ chip_type_location = 0x14;
+ break;
+ case TYPE_2232H:
+ case TYPE_4232H:
+ chip_type_location = 0x18;
+ break;
+ default:
+ ftdi_error_return(-4, "Device can't access unprotected area");
+ }
- \retval 0: all fine
- \retval -1: read failed
- \retval -2: USB device unavailable
-*/
-int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, unsigned short eeprom_val)
-{
- if (ftdi == NULL || ftdi->usb_dev == NULL)
- ftdi_error_return(-2, "USB device unavailable");
+ if (ftdi_read_eeprom_location( ftdi, chip_type_location>>1, &chip_type))
+ ftdi_error_return(-5, "Reading failed failed");
+ fprintf(stderr," loc 0x%04x val 0x%04x\n", chip_type_location,chip_type);
+ if ((chip_type & 0xff) != 0x66)
+ {
+ ftdi_error_return(-6, "EEPROM is not of 93x66");
+ }
if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE,
- SIO_WRITE_EEPROM_REQUEST, eeprom_val, eeprom_addr,
- NULL, 0, ftdi->usb_write_timeout) != 0)
+ SIO_WRITE_EEPROM_REQUEST, eeprom_val, eeprom_addr,
+ NULL, 0, ftdi->usb_write_timeout) != 0)
ftdi_error_return(-1, "unable to write eeprom");
return 0;
Write eeprom
\param ftdi pointer to ftdi_context
- \param eeprom Pointer to read eeprom from
\retval 0: all fine
\retval -1: read failed
\retval -2: USB device unavailable
*/
-int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom)
+int ftdi_write_eeprom(struct ftdi_context *ftdi)
{
unsigned short usb_val, status;
int i, ret;
+ unsigned char *eeprom;
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
+ eeprom = ftdi->eeprom->buf;
/* These commands were traced while running MProg */
if ((ret = ftdi_usb_reset(ftdi)) != 0)
if ((ret = ftdi_set_latency_timer(ftdi, 0x77)) != 0)
return ret;
- for (i = 0; i < ftdi->eeprom_size/2; i++)
+ for (i = 0; i < ftdi->eeprom->size/2; i++)
{
usb_val = eeprom[i*2];
usb_val += eeprom[(i*2)+1] << 8;
\retval 0: all fine
\retval -1: erase failed
\retval -2: USB device unavailable
+ \retval -3: Writing magic failed
+ \retval -4: Read EEPROM failed
+ \retval -5: Unexpected EEPROM value
*/
+#define MAGIC 0x55aa
int ftdi_erase_eeprom(struct ftdi_context *ftdi)
{
+ unsigned short eeprom_value;
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
- if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_ERASE_EEPROM_REQUEST, 0, 0, NULL, 0, ftdi->usb_write_timeout) < 0)
+ if (ftdi->type == TYPE_R)
+ {
+ ftdi->eeprom->chip = 0;
+ return 0;
+ }
+
+ if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_ERASE_EEPROM_REQUEST,
+ 0, 0, NULL, 0, ftdi->usb_write_timeout) < 0)
ftdi_error_return(-1, "unable to erase eeprom");
+
+ /* detect chip type by writing 0x55AA as magic at word position 0xc0
+ Chip is 93x46 if magic is read at word position 0x00, as wraparound happens around 0x40
+ Chip is 93x56 if magic is read at word position 0x40, as wraparound happens around 0x80
+ Chip is 93x66 if magic is only read at word position 0xc0*/
+ if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE,
+ SIO_WRITE_EEPROM_REQUEST, MAGIC, 0xc0,
+ NULL, 0, ftdi->usb_write_timeout) != 0)
+ ftdi_error_return(-3, "Writing magic failed");
+ if (ftdi_read_eeprom_location( ftdi, 0x00, &eeprom_value))
+ ftdi_error_return(-4, "Reading failed failed");
+ if (eeprom_value == MAGIC)
+ {
+ ftdi->eeprom->chip = 0x46;
+ }
+ else
+ {
+ if (ftdi_read_eeprom_location( ftdi, 0x40, &eeprom_value))
+ ftdi_error_return(-4, "Reading failed failed");
+ if (eeprom_value == MAGIC)
+ ftdi->eeprom->chip = 0x56;
+ else
+ {
+ if (ftdi_read_eeprom_location( ftdi, 0xc0, &eeprom_value))
+ ftdi_error_return(-4, "Reading failed failed");
+ if (eeprom_value == MAGIC)
+ ftdi->eeprom->chip = 0x66;
+ else
+ {
+ ftdi->eeprom->chip = -1;
+ }
+ }
+ }
+ if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_ERASE_EEPROM_REQUEST,
+ 0, 0, NULL, 0, ftdi->usb_write_timeout) < 0)
+ ftdi_error_return(-1, "unable to erase eeprom");
return 0;
}
git://developer.intra2net.com / libftdi / commitdiff