ftdi.c - description
-------------------
begin : Fri Apr 4 2003
- copyright : (C) 2003-2011 by Intra2net AG and the libftdi developers
+ copyright : (C) 2003-2014 by Intra2net AG and the libftdi developers
email : opensource@intra2net.com
***************************************************************************/
#include <stdio.h>
#include <stdlib.h>
+#include "ftdi_i.h"
#include "ftdi.h"
+#include "ftdi_version_i.h"
#define ftdi_error_return(code, str) do { \
- ftdi->error_str = str; \
+ if ( ftdi ) \
+ ftdi->error_str = str; \
+ else \
+ fprintf(stderr, str); \
return code; \
} while(0);
{
libusb_close (ftdi->usb_dev);
ftdi->usb_dev = NULL;
+ if(ftdi->eeprom)
+ ftdi->eeprom->initialized_for_connected_device = 0;
}
}
\retval 0: all fine
\retval -1: couldn't allocate read buffer
\retval -2: couldn't allocate struct buffer
+ \retval -3: libusb_init() failed
\remark This should be called before all functions
*/
ftdi->readbuffer_remaining = 0;
ftdi->writebuffer_chunksize = 4096;
ftdi->max_packet_size = 0;
+ ftdi->error_str = NULL;
+ ftdi->module_detach_mode = AUTO_DETACH_SIO_MODULE;
+
+ if (libusb_init(&ftdi->usb_ctx) < 0)
+ ftdi_error_return(-3, "libusb_init() failed");
ftdi_set_interface(ftdi, INTERFACE_ANY);
ftdi->bitbang_mode = 1; /* when bitbang is enabled this holds the number of the mode */
- ftdi->error_str = NULL;
-
if (eeprom == 0)
ftdi_error_return(-2, "Can't malloc struct ftdi_eeprom");
memset(eeprom, 0, sizeof(struct ftdi_eeprom));
\retval 0: all fine
\retval -1: unknown interface
\retval -2: USB device unavailable
+ \retval -3: Device already open, interface can't be set in that state
*/
int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface)
{
if (ftdi == NULL)
ftdi_error_return(-2, "USB device unavailable");
+ if (ftdi->usb_dev != NULL)
+ {
+ int check_interface = interface;
+ if (check_interface == INTERFACE_ANY)
+ check_interface = INTERFACE_A;
+
+ if (ftdi->index != check_interface)
+ ftdi_error_return(-3, "Interface can not be changed on an already open device");
+ }
+
switch (interface)
{
case INTERFACE_ANY:
free(ftdi->eeprom);
ftdi->eeprom = NULL;
}
- libusb_exit(ftdi->usb_ctx);
+
+ if (ftdi->usb_ctx)
+ {
+ libusb_exit(ftdi->usb_ctx);
+ ftdi->usb_ctx = NULL;
+ }
}
/**
ftdi->usb_dev = usb;
}
+/**
+ * @brief Get libftdi library version
+ *
+ * @return ftdi_version_info Library version information
+ **/
+struct ftdi_version_info ftdi_get_library_version(void)
+{
+ struct ftdi_version_info ver;
+
+ ver.major = FTDI_MAJOR_VERSION;
+ ver.minor = FTDI_MINOR_VERSION;
+ ver.micro = FTDI_MICRO_VERSION;
+ ver.version_str = FTDI_VERSION_STRING;
+ ver.snapshot_str = FTDI_SNAPSHOT_VERSION;
+
+ return ver;
+}
/**
- Finds all ftdi devices on the usb bus. Creates a new ftdi_device_list which
- needs to be deallocated by ftdi_list_free() after use.
+ Finds all ftdi devices with given VID:PID on the usb bus. Creates a new
+ ftdi_device_list which needs to be deallocated by ftdi_list_free() after
+ use. With VID:PID 0:0, search for the default devices
+ (0x403:0x6001, 0x403:0x6010, 0x403:0x6011, 0x403:0x6014, 0x403:0x6015)
\param ftdi pointer to ftdi_context
\param devlist Pointer where to store list of found devices
\retval >0: number of devices found
\retval -3: out of memory
- \retval -4: libusb_init() failed
\retval -5: libusb_get_device_list() failed
\retval -6: libusb_get_device_descriptor() failed
*/
int count = 0;
int i = 0;
- if (libusb_init(&ftdi->usb_ctx) < 0)
- ftdi_error_return(-4, "libusb_init() failed");
-
if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0)
ftdi_error_return(-5, "libusb_get_device_list() failed");
struct libusb_device_descriptor desc;
if (libusb_get_device_descriptor(dev, &desc) < 0)
- ftdi_error_return(-6, "libusb_get_device_descriptor() failed");
-
- if (desc.idVendor == vendor && desc.idProduct == product)
+ ftdi_error_return_free_device_list(-6, "libusb_get_device_descriptor() failed", devs);
+
+ if (((vendor || product) &&
+ desc.idVendor == vendor && desc.idProduct == product) ||
+ (!(vendor || product) &&
+ (desc.idVendor == 0x403) && (desc.idProduct == 0x6001 || desc.idProduct == 0x6010
+ || desc.idProduct == 0x6011 || desc.idProduct == 0x6014
+ || desc.idProduct == 0x6015)))
{
*curdev = (struct ftdi_device_list*)malloc(sizeof(struct ftdi_device_list));
if (!*curdev)
- ftdi_error_return(-3, "out of memory");
+ ftdi_error_return_free_device_list(-3, "out of memory", devs);
(*curdev)->next = NULL;
(*curdev)->dev = dev;
-
+ libusb_ref_device(dev);
curdev = &(*curdev)->next;
count++;
}
}
-
+ libusb_free_device_list(devs,1);
return count;
}
for (curdev = *devlist; curdev != NULL;)
{
next = curdev->next;
+ libusb_unref_device(curdev->dev);
free(curdev);
curdev = next;
}
\retval -9: get serial number failed
\retval -11: libusb_get_device_descriptor() failed
*/
-int ftdi_usb_get_strings(struct ftdi_context * ftdi, struct libusb_device * dev,
- char * manufacturer, int mnf_len, char * description, int desc_len, char * serial, int serial_len)
+int ftdi_usb_get_strings(struct ftdi_context *ftdi,
+ struct libusb_device *dev,
+ char *manufacturer, int mnf_len,
+ char *description, int desc_len,
+ char *serial, int serial_len)
+{
+ int ret;
+
+ if ((ftdi==NULL) || (dev==NULL))
+ return -1;
+
+ if (ftdi->usb_dev == NULL && libusb_open(dev, &ftdi->usb_dev) < 0)
+ ftdi_error_return(-4, "libusb_open() failed");
+
+ // ftdi->usb_dev will not be NULL when entering ftdi_usb_get_strings2(), so
+ // it won't be closed either. This allows us to close it whether we actually
+ // called libusb_open() up above or not. This matches the expected behavior
+ // (and note) for ftdi_usb_get_strings().
+ ret = ftdi_usb_get_strings2(ftdi, dev,
+ manufacturer, mnf_len,
+ description, desc_len,
+ serial, serial_len);
+
+ // only close it if it was successful, as all other return codes close
+ // before returning already.
+ if (ret == 0)
+ ftdi_usb_close_internal(ftdi);
+
+ return ret;
+}
+
+/**
+ Return device ID strings from the usb device.
+
+ The parameters manufacturer, description and serial may be NULL
+ or pointer to buffers to store the fetched strings.
+
+ \note The old function ftdi_usb_get_strings() always closes the device.
+ This version only closes the device if it was opened by it.
+
+ \param ftdi pointer to ftdi_context
+ \param dev libusb usb_dev to use
+ \param manufacturer Store manufacturer string here if not NULL
+ \param mnf_len Buffer size of manufacturer string
+ \param description Store product description string here if not NULL
+ \param desc_len Buffer size of product description string
+ \param serial Store serial string here if not NULL
+ \param serial_len Buffer size of serial string
+
+ \retval 0: all fine
+ \retval -1: wrong arguments
+ \retval -4: unable to open device
+ \retval -7: get product manufacturer failed
+ \retval -8: get product description failed
+ \retval -9: get serial number failed
+ \retval -11: libusb_get_device_descriptor() failed
+*/
+int ftdi_usb_get_strings2(struct ftdi_context *ftdi, struct libusb_device *dev,
+ char *manufacturer, int mnf_len,
+ char *description, int desc_len,
+ char *serial, int serial_len)
{
struct libusb_device_descriptor desc;
+ char need_open;
if ((ftdi==NULL) || (dev==NULL))
return -1;
- if (libusb_open(dev, &ftdi->usb_dev) < 0)
+ need_open = (ftdi->usb_dev == NULL);
+ if (need_open && libusb_open(dev, &ftdi->usb_dev) < 0)
ftdi_error_return(-4, "libusb_open() failed");
if (libusb_get_device_descriptor(dev, &desc) < 0)
}
}
- ftdi_usb_close_internal (ftdi);
+ if (need_open)
+ ftdi_usb_close_internal (ftdi);
return 0;
}
// Determine maximum packet size. Init with default value.
// New hi-speed devices from FTDI use a packet size of 512 bytes
// but could be connected to a normal speed USB hub -> 64 bytes packet size.
- if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H)
+ if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H)
packet_size = 512;
else
packet_size = 64;
\retval -8: ftdi context invalid
\retval -9: libusb_get_device_descriptor() failed
\retval -10: libusb_get_config_descriptor() failed
- \retval -11: libusb_etach_kernel_driver() failed
+ \retval -11: libusb_detach_kernel_driver() failed
\retval -12: libusb_get_configuration() failed
*/
int ftdi_usb_open_dev(struct ftdi_context *ftdi, libusb_device *dev)
// if usb_set_configuration() or usb_claim_interface() fails as the
// detach operation might be denied and everything still works fine.
// Likely scenario is a static ftdi_sio kernel module.
- if (libusb_detach_kernel_driver(ftdi->usb_dev, ftdi->interface) !=0)
- detach_errno = errno;
+ if (ftdi->module_detach_mode == AUTO_DETACH_SIO_MODULE)
+ {
+ if (libusb_detach_kernel_driver(ftdi->usb_dev, ftdi->interface) !=0)
+ detach_errno = errno;
+ }
if (libusb_get_configuration (ftdi->usb_dev, &cfg) < 0)
ftdi_error_return(-12, "libusb_get_configuration () failed");
ftdi->type = TYPE_2232H;
else if (desc.bcdDevice == 0x800)
ftdi->type = TYPE_4232H;
+ else if (desc.bcdDevice == 0x900)
+ ftdi->type = TYPE_232H;
+ else if (desc.bcdDevice == 0x1000)
+ ftdi->type = TYPE_230X;
// Determine maximum packet size
ftdi->max_packet_size = _ftdi_determine_max_packet_size(ftdi, dev);
\retval -7: set baudrate failed
\retval -8: get product description failed
\retval -9: get serial number failed
- \retval -11: libusb_init() failed
\retval -12: libusb_get_device_list() failed
\retval -13: libusb_get_device_descriptor() failed
*/
if (ftdi == NULL)
ftdi_error_return(-11, "ftdi context invalid");
- if (libusb_init(&ftdi->usb_ctx) < 0)
- ftdi_error_return(-11, "libusb_init() failed");
-
if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0)
ftdi_error_return(-12, "libusb_get_device_list() failed");
\note The description format may be extended in later versions.
\retval 0: all fine
- \retval -1: libusb_init() failed
\retval -2: libusb_get_device_list() failed
\retval -3: usb device not found
\retval -4: unable to open device
unsigned int bus_number, device_address;
int i = 0;
- if (libusb_init (&ftdi->usb_ctx) < 0)
- 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");
return rtn;
}
-/**
- ftdi_convert_baudrate returns nearest supported baud rate to that requested.
+/* ftdi_to_clkbits_AM For the AM device, convert a requested baudrate
+ to encoded divisor and the achievable baudrate
Function is only used internally
\internal
+
+ See AN120
+ clk/1 -> 0
+ clk/1.5 -> 1
+ clk/2 -> 2
+ From /2, 0.125/ 0.25 and 0.5 steps may be taken
+ The fractional part has frac_code encoding
*/
-static int ftdi_convert_baudrate(int baudrate, struct ftdi_context *ftdi,
- unsigned short *value, unsigned short *index)
+static int ftdi_to_clkbits_AM(int baudrate, unsigned long *encoded_divisor)
+
{
+ static const char frac_code[8] = {0, 3, 2, 4, 1, 5, 6, 7};
static const char am_adjust_up[8] = {0, 0, 0, 1, 0, 3, 2, 1};
static const char am_adjust_dn[8] = {0, 0, 0, 1, 0, 1, 2, 3};
- static const char frac_code[8] = {0, 3, 2, 4, 1, 5, 6, 7};
int divisor, best_divisor, best_baud, best_baud_diff;
- unsigned long encoded_divisor;
int i;
-
- if (baudrate <= 0)
- {
- // Return error
- return -1;
- }
-
divisor = 24000000 / baudrate;
- if (ftdi->type == TYPE_AM)
- {
- // Round down to supported fraction (AM only)
- divisor -= am_adjust_dn[divisor & 7];
- }
+ // Round down to supported fraction (AM only)
+ divisor -= am_adjust_dn[divisor & 7];
// Try this divisor and the one above it (because division rounds down)
best_divisor = 0;
// Round up to minimum supported divisor
try_divisor = 8;
}
- else if (ftdi->type != TYPE_AM && try_divisor < 12)
- {
- // BM doesn't support divisors 9 through 11 inclusive
- try_divisor = 12;
- }
else if (divisor < 16)
{
// AM doesn't support divisors 9 through 15 inclusive
}
else
{
- if (ftdi->type == TYPE_AM)
- {
- // Round up to supported fraction (AM only)
- try_divisor += am_adjust_up[try_divisor & 7];
- if (try_divisor > 0x1FFF8)
- {
- // Round down to maximum supported divisor value (for AM)
- try_divisor = 0x1FFF8;
- }
- }
- else
+ // Round up to supported fraction (AM only)
+ try_divisor += am_adjust_up[try_divisor & 7];
+ if (try_divisor > 0x1FFF8)
{
- if (try_divisor > 0x1FFFF)
- {
- // Round down to maximum supported divisor value (for BM)
- try_divisor = 0x1FFFF;
- }
+ // Round down to maximum supported divisor value (for AM)
+ try_divisor = 0x1FFF8;
}
}
// Get estimated baud rate (to nearest integer)
}
}
// Encode the best divisor value
- encoded_divisor = (best_divisor >> 3) | (frac_code[best_divisor & 7] << 14);
+ *encoded_divisor = (best_divisor >> 3) | (frac_code[best_divisor & 7] << 14);
// Deal with special cases for encoded value
- if (encoded_divisor == 1)
+ if (*encoded_divisor == 1)
+ {
+ *encoded_divisor = 0; // 3000000 baud
+ }
+ else if (*encoded_divisor == 0x4001)
+ {
+ *encoded_divisor = 1; // 2000000 baud (BM only)
+ }
+ return best_baud;
+}
+
+/* ftdi_to_clkbits Convert a requested baudrate for a given system clock and predivisor
+ to encoded divisor and the achievable baudrate
+ Function is only used internally
+ \internal
+
+ See AN120
+ clk/1 -> 0
+ clk/1.5 -> 1
+ clk/2 -> 2
+ From /2, 0.125 steps may be taken.
+ The fractional part has frac_code encoding
+
+ value[13:0] of value is the divisor
+ index[9] mean 12 MHz Base(120 MHz/10) rate versus 3 MHz (48 MHz/16) else
+
+ H Type have all features above with
+ {index[8],value[15:14]} is the encoded subdivisor
+
+ FT232R, FT2232 and FT232BM have no option for 12 MHz and with
+ {index[0],value[15:14]} is the encoded subdivisor
+
+ AM Type chips have only four fractional subdivisors at value[15:14]
+ for subdivisors 0, 0.5, 0.25, 0.125
+*/
+static int ftdi_to_clkbits(int baudrate, unsigned int clk, int clk_div, unsigned long *encoded_divisor)
+{
+ static const char frac_code[8] = {0, 3, 2, 4, 1, 5, 6, 7};
+ int best_baud = 0;
+ int divisor, best_divisor;
+ if (baudrate >= clk/clk_div)
+ {
+ *encoded_divisor = 0;
+ best_baud = clk/clk_div;
+ }
+ else if (baudrate >= clk/(clk_div + clk_div/2))
{
- encoded_divisor = 0; // 3000000 baud
+ *encoded_divisor = 1;
+ best_baud = clk/(clk_div + clk_div/2);
}
- else if (encoded_divisor == 0x4001)
+ else if (baudrate >= clk/(2*clk_div))
{
- encoded_divisor = 1; // 2000000 baud (BM only)
+ *encoded_divisor = 2;
+ best_baud = clk/(2*clk_div);
+ }
+ else
+ {
+ /* We divide by 16 to have 3 fractional bits and one bit for rounding */
+ divisor = clk*16/clk_div / baudrate;
+ if (divisor & 1) /* Decide if to round up or down*/
+ best_divisor = divisor /2 +1;
+ else
+ best_divisor = divisor/2;
+ if(best_divisor > 0x20000)
+ best_divisor = 0x1ffff;
+ best_baud = clk*16/clk_div/best_divisor;
+ if (best_baud & 1) /* Decide if to round up or down*/
+ best_baud = best_baud /2 +1;
+ else
+ best_baud = best_baud /2;
+ *encoded_divisor = (best_divisor >> 3) | (frac_code[best_divisor & 0x7] << 14);
+ }
+ return best_baud;
+}
+/**
+ ftdi_convert_baudrate returns nearest supported baud rate to that requested.
+ Function is only used internally
+ \internal
+*/
+static int ftdi_convert_baudrate(int baudrate, struct ftdi_context *ftdi,
+ unsigned short *value, unsigned short *index)
+{
+ int best_baud;
+ unsigned long encoded_divisor;
+
+ if (baudrate <= 0)
+ {
+ // Return error
+ return -1;
+ }
+
+#define H_CLK 120000000
+#define C_CLK 48000000
+ if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H) || (ftdi->type == TYPE_232H))
+ {
+ if(baudrate*10 > H_CLK /0x3fff)
+ {
+ /* On H Devices, use 12 000 000 Baudrate when possible
+ We have a 14 bit divisor, a 1 bit divisor switch (10 or 16)
+ three fractional bits and a 120 MHz clock
+ Assume AN_120 "Sub-integer divisors between 0 and 2 are not allowed" holds for
+ DIV/10 CLK too, so /1, /1.5 and /2 can be handled the same*/
+ best_baud = ftdi_to_clkbits(baudrate, H_CLK, 10, &encoded_divisor);
+ encoded_divisor |= 0x20000; /* switch on CLK/10*/
+ }
+ else
+ best_baud = ftdi_to_clkbits(baudrate, C_CLK, 16, &encoded_divisor);
+ }
+ else if ((ftdi->type == TYPE_BM) || (ftdi->type == TYPE_2232C) || (ftdi->type == TYPE_R) || (ftdi->type == TYPE_230X))
+ {
+ best_baud = ftdi_to_clkbits(baudrate, C_CLK, 16, &encoded_divisor);
+ }
+ else
+ {
+ best_baud = ftdi_to_clkbits_AM(baudrate, &encoded_divisor);
}
// Split into "value" and "index" values
*value = (unsigned short)(encoded_divisor & 0xFFFF);
- if (ftdi->type == TYPE_2232C || ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H)
+ if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H)
{
*index = (unsigned short)(encoded_divisor >> 8);
*index &= 0xFF00;
}
/**
+ * @brief Wrapper function to export ftdi_convert_baudrate() to the unit test
+ * Do not use, it's only for the unit test framework
+ **/
+int convert_baudrate_UT_export(int baudrate, struct ftdi_context *ftdi,
+ unsigned short *value, unsigned short *index)
+{
+ return ftdi_convert_baudrate(baudrate, ftdi, value, index);
+}
+
+/**
Sets the chip baud rate
\param ftdi pointer to ftdi_context
\retval <0: error code from usb_bulk_write()
\retval >0: number of bytes written
*/
-int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size)
+int ftdi_write_data(struct ftdi_context *ftdi, const unsigned char *buf, int size)
{
int offset = 0;
int actual_length;
if (offset+write_size > size)
write_size = size-offset;
- if (libusb_bulk_transfer(ftdi->usb_dev, ftdi->in_ep, buf+offset, write_size, &actual_length, ftdi->usb_write_timeout) < 0)
+ if (libusb_bulk_transfer(ftdi->usb_dev, ftdi->in_ep, (unsigned char *)buf+offset, write_size, &actual_length, ftdi->usb_write_timeout) < 0)
ftdi_error_return(-1, "usb bulk write failed");
offset += actual_length;
return offset;
}
-static void ftdi_read_data_cb(struct libusb_transfer *transfer)
+static void LIBUSB_CALL ftdi_read_data_cb(struct libusb_transfer *transfer)
{
struct ftdi_transfer_control *tc = (struct ftdi_transfer_control *) transfer->user_data;
struct ftdi_context *ftdi = tc->ftdi;
}
}
}
- ret = libusb_submit_transfer (transfer);
- if (ret < 0)
- tc->completed = 1;
+
+ if (transfer->status == LIBUSB_TRANSFER_CANCELLED)
+ tc->completed = LIBUSB_TRANSFER_CANCELLED;
+ else
+ {
+ ret = libusb_submit_transfer (transfer);
+ if (ret < 0)
+ tc->completed = 1;
+ }
}
-static void ftdi_write_data_cb(struct libusb_transfer *transfer)
+static void LIBUSB_CALL ftdi_write_data_cb(struct libusb_transfer *transfer)
{
struct ftdi_transfer_control *tc = (struct ftdi_transfer_control *) transfer->user_data;
struct ftdi_context *ftdi = tc->ftdi;
transfer->length = write_size;
transfer->buffer = tc->buf + tc->offset;
- ret = libusb_submit_transfer (transfer);
- if (ret < 0)
- tc->completed = 1;
+
+ if (transfer->status == LIBUSB_TRANSFER_CANCELLED)
+ tc->completed = LIBUSB_TRANSFER_CANCELLED;
+ else
+ {
+ ret = libusb_submit_transfer (transfer);
+ if (ret < 0)
+ tc->completed = 1;
+ }
}
}
tc->size = size;
tc->offset = 0;
- if (size < ftdi->writebuffer_chunksize)
+ if (size < (int)ftdi->writebuffer_chunksize)
write_size = size;
else
write_size = ftdi->writebuffer_chunksize;
tc->buf = buf;
tc->size = size;
- if (size <= ftdi->readbuffer_remaining)
+ if (size <= (int)ftdi->readbuffer_remaining)
{
memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, size);
int ftdi_transfer_data_done(struct ftdi_transfer_control *tc)
{
int ret;
-
+ struct timeval to = { 0, 0 };
while (!tc->completed)
{
- ret = libusb_handle_events(tc->ftdi->usb_ctx);
+ ret = libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx,
+ &to, &tc->completed);
if (ret < 0)
{
if (ret == LIBUSB_ERROR_INTERRUPTED)
continue;
libusb_cancel_transfer(tc->transfer);
while (!tc->completed)
- if (libusb_handle_events(tc->ftdi->usb_ctx) < 0)
+ if (libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx,
+ &to, &tc->completed) < 0)
break;
libusb_free_transfer(tc->transfer);
free (tc);
}
/**
+ Cancel transfer and wait for completion.
+
+ Use libusb 1.0 asynchronous API.
+
+ \param tc pointer to ftdi_transfer_control
+ \param to pointer to timeout value or NULL for infinite
+*/
+
+void ftdi_transfer_data_cancel(struct ftdi_transfer_control *tc,
+ struct timeval * to)
+{
+ struct timeval tv = { 0, 0 };
+
+ if (!tc->completed && tc->transfer != NULL)
+ {
+ if (to == NULL)
+ to = &tv;
+
+ libusb_cancel_transfer(tc->transfer);
+ while (!tc->completed)
+ {
+ if (libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx, to, &tc->completed) < 0)
+ break;
+ }
+ }
+
+ if (tc->transfer)
+ libusb_free_transfer(tc->transfer);
+
+ free (tc);
+}
+
+/**
Configure write buffer chunk size.
Default is 4096.
ftdi_error_return(-1, "max_packet_size is bogus (zero)");
// everything we want is still in the readbuffer?
- if (size <= ftdi->readbuffer_remaining)
+ if (size <= (int)ftdi->readbuffer_remaining)
{
memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, size);
return 0;
}
-
/**
- Enable bitbang mode.
-
- \deprecated use \ref ftdi_set_bitmode with mode BITMODE_BITBANG instead
+ Enable/disable bitbang modes.
\param ftdi pointer to ftdi_context
\param bitmask Bitmask to configure lines.
HIGH/ON value configures a line as output.
+ \param mode Bitbang mode: use the values defined in \ref ftdi_mpsse_mode
\retval 0: all fine
\retval -1: can't enable bitbang mode
\retval -2: USB device unavailable
*/
-int ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask)
+int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode)
{
unsigned short usb_val;
ftdi_error_return(-2, "USB device unavailable");
usb_val = bitmask; // low byte: bitmask
- /* FT2232C: Set bitbang_mode to 2 to enable SPI */
- usb_val |= (ftdi->bitbang_mode << 8);
-
- if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE,
- SIO_SET_BITMODE_REQUEST, usb_val, ftdi->index,
- NULL, 0, ftdi->usb_write_timeout) < 0)
- ftdi_error_return(-1, "unable to enter bitbang mode. Perhaps not a BM type chip?");
+ usb_val |= (mode << 8);
+ if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_BITMODE_REQUEST, usb_val, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0)
+ ftdi_error_return(-1, "unable to configure bitbang mode. Perhaps not a BM/2232C type chip?");
- ftdi->bitbang_enabled = 1;
+ ftdi->bitbang_mode = mode;
+ ftdi->bitbang_enabled = (mode == BITMODE_RESET) ? 0 : 1;
return 0;
}
return 0;
}
-/**
- Enable/disable bitbang modes.
-
- \param ftdi pointer to ftdi_context
- \param bitmask Bitmask to configure lines.
- HIGH/ON value configures a line as output.
- \param mode Bitbang mode: use the values defined in \ref ftdi_mpsse_mode
-
- \retval 0: all fine
- \retval -1: can't enable bitbang mode
- \retval -2: USB device unavailable
-*/
-int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode)
-{
- unsigned short usb_val;
-
- if (ftdi == NULL || ftdi->usb_dev == NULL)
- ftdi_error_return(-2, "USB device unavailable");
-
- usb_val = bitmask; // low byte: bitmask
- usb_val |= (mode << 8);
- if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_BITMODE_REQUEST, usb_val, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0)
- ftdi_error_return(-1, "unable to configure bitbang mode. Perhaps not a 2232C type chip?");
-
- ftdi->bitbang_mode = mode;
- ftdi->bitbang_enabled = (mode == BITMODE_RESET) ? 0 : 1;
- return 0;
-}
/**
Directly read pin state, circumventing the read buffer. Useful for bitbang mode.
if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_POLL_MODEM_STATUS_REQUEST, 0, ftdi->index, (unsigned char *)usb_val, 2, ftdi->usb_read_timeout) != 2)
ftdi_error_return(-1, "getting modem status failed");
- *status = (usb_val[1] << 8) | usb_val[0];
+ *status = (usb_val[1] << 8) | (usb_val[0] & 0xFF);
return 0;
}
}
/**
- Init eeprom with default values.
+ Init eeprom with default values for the connected device
\param ftdi pointer to ftdi_context
\param manufacturer String to use as Manufacturer
\param product String to use as Product description
\retval 0: all fine
\retval -1: No struct ftdi_context
\retval -2: No struct ftdi_eeprom
+ \retval -3: No connected device or device not yet opened
*/
int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer,
char * product, char * serial)
eeprom = ftdi->eeprom;
memset(eeprom, 0, sizeof(struct ftdi_eeprom));
+ if (ftdi->usb_dev == NULL)
+ ftdi_error_return(-3, "No connected device or device not yet opened");
+
eeprom->vendor_id = 0x0403;
- eeprom->use_serial = USE_SERIAL_NUM;
+ eeprom->use_serial = 1;
if ((ftdi->type == TYPE_AM) || (ftdi->type == TYPE_BM) ||
(ftdi->type == TYPE_R))
eeprom->product_id = 0x6001;
+ else if (ftdi->type == TYPE_4232H)
+ eeprom->product_id = 0x6011;
+ else if (ftdi->type == TYPE_232H)
+ eeprom->product_id = 0x6014;
+ else if (ftdi->type == TYPE_230X)
+ eeprom->product_id = 0x6015;
else
eeprom->product_id = 0x6010;
+
if (ftdi->type == TYPE_AM)
eeprom->usb_version = 0x0101;
else
eeprom->manufacturer = NULL;
if (manufacturer)
{
- eeprom->manufacturer = malloc(strlen(manufacturer)+1);
+ eeprom->manufacturer = (char *)malloc(strlen(manufacturer)+1);
if (eeprom->manufacturer)
strcpy(eeprom->manufacturer, manufacturer);
}
if (eeprom->product)
free (eeprom->product);
eeprom->product = NULL;
+ if(product)
{
- eeprom->product = malloc(strlen(product)+1);
+ eeprom->product = (char *)malloc(strlen(product)+1);
if (eeprom->product)
strcpy(eeprom->product, product);
}
+ else
+ {
+ const char* default_product;
+ switch(ftdi->type)
+ {
+ case TYPE_AM: default_product = "AM"; break;
+ case TYPE_BM: default_product = "BM"; break;
+ case TYPE_2232C: default_product = "Dual RS232"; break;
+ case TYPE_R: default_product = "FT232R USB UART"; break;
+ case TYPE_2232H: default_product = "Dual RS232-HS"; break;
+ case TYPE_4232H: default_product = "FT4232H"; break;
+ case TYPE_232H: default_product = "Single-RS232-HS"; break;
+ case TYPE_230X: default_product = "FT230X Basic UART"; break;
+ default:
+ ftdi_error_return(-3, "Unknown chip type");
+ }
+ eeprom->product = (char *)malloc(strlen(default_product) +1);
+ if (eeprom->product)
+ strcpy(eeprom->product, default_product);
+ }
if (eeprom->serial)
free (eeprom->serial);
eeprom->serial = NULL;
if (serial)
{
- eeprom->serial = malloc(strlen(serial)+1);
+ eeprom->serial = (char *)malloc(strlen(serial)+1);
if (eeprom->serial)
strcpy(eeprom->serial, serial);
}
-
if (ftdi->type == TYPE_R)
{
eeprom->max_power = 90;
eeprom->cbus_function[3] = CBUS_PWREN;
eeprom->cbus_function[4] = CBUS_SLEEP;
}
+ else if (ftdi->type == TYPE_230X)
+ {
+ eeprom->max_power = 90;
+ eeprom->size = 0x100;
+ eeprom->cbus_function[0] = CBUSX_TXDEN;
+ eeprom->cbus_function[1] = CBUSX_RXLED;
+ eeprom->cbus_function[2] = CBUSX_TXLED;
+ eeprom->cbus_function[3] = CBUSX_SLEEP;
+ }
else
+ {
+ if(ftdi->type == TYPE_232H)
+ {
+ int i;
+ for (i=0; i<10; i++)
+ eeprom->cbus_function[i] = CBUSH_TRISTATE;
+ }
eeprom->size = -1;
+ }
+ switch (ftdi->type)
+ {
+ case TYPE_AM:
+ eeprom->release_number = 0x0200;
+ break;
+ case TYPE_BM:
+ eeprom->release_number = 0x0400;
+ break;
+ case TYPE_2232C:
+ eeprom->release_number = 0x0500;
+ break;
+ case TYPE_R:
+ eeprom->release_number = 0x0600;
+ break;
+ case TYPE_2232H:
+ eeprom->release_number = 0x0700;
+ break;
+ case TYPE_4232H:
+ eeprom->release_number = 0x0800;
+ break;
+ case TYPE_232H:
+ eeprom->release_number = 0x0900;
+ break;
+ case TYPE_230X:
+ eeprom->release_number = 0x1000;
+ break;
+ default:
+ eeprom->release_number = 0x00;
+ }
+ return 0;
+}
+
+int ftdi_eeprom_set_strings(struct ftdi_context *ftdi, char * manufacturer,
+ char * product, char * serial)
+{
+ struct ftdi_eeprom *eeprom;
+
+ if (ftdi == NULL)
+ ftdi_error_return(-1, "No struct ftdi_context");
+
+ if (ftdi->eeprom == NULL)
+ ftdi_error_return(-2,"No struct ftdi_eeprom");
+
+ eeprom = ftdi->eeprom;
+
+ if (ftdi->usb_dev == NULL)
+ ftdi_error_return(-3, "No connected device or device not yet opened");
+
+ if (manufacturer)
+ {
+ if (eeprom->manufacturer)
+ free (eeprom->manufacturer);
+ eeprom->manufacturer = (char *)malloc(strlen(manufacturer)+1);
+ if (eeprom->manufacturer)
+ strcpy(eeprom->manufacturer, manufacturer);
+ }
+
+ if(product)
+ {
+ if (eeprom->product)
+ free (eeprom->product);
+ eeprom->product = (char *)malloc(strlen(product)+1);
+ if (eeprom->product)
+ strcpy(eeprom->product, product);
+ }
+
+ if (serial)
+ {
+ if (eeprom->serial)
+ free (eeprom->serial);
+ eeprom->serial = (char *)malloc(strlen(serial)+1);
+ if (eeprom->serial)
+ {
+ strcpy(eeprom->serial, serial);
+ eeprom->use_serial = 1;
+ }
+ }
+ return 0;
+}
+
+
+/*FTD2XX doesn't check for values not fitting in the ACBUS Signal options*/
+void set_ft232h_cbus(struct ftdi_eeprom *eeprom, unsigned char * output)
+{
+ int i;
+ for(i=0; i<5; i++)
+ {
+ int mode_low, mode_high;
+ if (eeprom->cbus_function[2*i]> CBUSH_CLK7_5)
+ mode_low = CBUSH_TRISTATE;
+ else
+ mode_low = eeprom->cbus_function[2*i];
+ if (eeprom->cbus_function[2*i+1]> CBUSH_CLK7_5)
+ mode_high = CBUSH_TRISTATE;
+ else
+ mode_high = eeprom->cbus_function[2*i+1];
+
+ output[0x18+i] = (mode_high <<4) | mode_low;
+ }
+}
+/* Return the bits for the encoded EEPROM Structure of a requested Mode
+ *
+ */
+static unsigned char type2bit(unsigned char type, enum ftdi_chip_type chip)
+{
+ switch (chip)
+ {
+ case TYPE_2232H:
+ case TYPE_2232C:
+ {
+ switch (type)
+ {
+ case CHANNEL_IS_UART: return 0;
+ case CHANNEL_IS_FIFO: return 0x01;
+ case CHANNEL_IS_OPTO: return 0x02;
+ case CHANNEL_IS_CPU : return 0x04;
+ default: return 0;
+ }
+ }
+ case TYPE_232H:
+ {
+ switch (type)
+ {
+ case CHANNEL_IS_UART : return 0;
+ case CHANNEL_IS_FIFO : return 0x01;
+ case CHANNEL_IS_OPTO : return 0x02;
+ case CHANNEL_IS_CPU : return 0x04;
+ case CHANNEL_IS_FT1284 : return 0x08;
+ default: return 0;
+ }
+ }
+ case TYPE_R:
+ {
+ switch (type)
+ {
+ case CHANNEL_IS_UART : return 0;
+ case CHANNEL_IS_FIFO : return 0x01;
+ default: return 0;
+ }
+ }
+ case TYPE_230X: /* FT230X is only UART */
+ default: return 0;
+ }
return 0;
}
unsigned char i, j, eeprom_size_mask;
unsigned short checksum, value;
unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0;
- int user_area_size;
+ int user_area_size, free_start, free_end;
struct ftdi_eeprom *eeprom;
unsigned char * output;
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->size == -1)
+ {
+ if ((eeprom->chip == 0x56) || (eeprom->chip == 0x66))
+ eeprom->size = 0x100;
+ else
+ eeprom->size = 0x80;
+ }
if (eeprom->manufacturer != NULL)
manufacturer_size = strlen(eeprom->manufacturer);
{
case TYPE_AM:
case TYPE_BM:
+ case TYPE_R:
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:
+ case TYPE_230X:
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;
+ case TYPE_232H:
+ user_area_size = 80;
+ break;
default:
user_area_size = 0;
break;
ftdi_error_return(-1,"eeprom size exceeded");
// empty eeprom
- memset (ftdi->eeprom->buf, 0, FTDI_MAX_EEPROM_SIZE);
+ if (ftdi->type == TYPE_230X)
+ {
+ /* FT230X have a reserved section in the middle of the MTP,
+ which cannot be written to, but must be included in the checksum */
+ memset(ftdi->eeprom->buf, 0, 0x80);
+ memset((ftdi->eeprom->buf + 0xa0), 0, (FTDI_MAX_EEPROM_SIZE - 0xa0));
+ }
+ else
+ {
+ memset(ftdi->eeprom->buf, 0, FTDI_MAX_EEPROM_SIZE);
+ }
// Bytes and Bits set for all Types
output[0x05] = eeprom->product_id >> 8;
// Addr 06: Device release number (0400h for BM features)
- output[0x06] = 0x00;
- switch (ftdi->type)
- {
- case TYPE_AM:
- output[0x07] = 0x02;
- break;
- case TYPE_BM:
- output[0x07] = 0x04;
- break;
- case TYPE_2232C:
- output[0x07] = 0x05;
- 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;
- }
+ output[0x06] = eeprom->release_number;
+ output[0x07] = eeprom->release_number >> 8;
// Addr 08: Config descriptor
// Bit 7: always 1
// Bit 5: 1 if this device uses remote wakeup
// Bit 4-0: reserved - 0
j = 0x80;
- if (eeprom->self_powered == 1)
+ if (eeprom->self_powered)
j |= 0x40;
- if (eeprom->remote_wakeup == 1)
+ if (eeprom->remote_wakeup)
j |= 0x20;
output[0x08] = j;
// Addr 09: Max power consumption: max power = value * 2 mA
- output[0x09] = eeprom->max_power>>1;
+ output[0x09] = eeprom->max_power / MAX_POWER_MILLIAMP_PER_UNIT;
- if (ftdi->type != TYPE_AM)
+ if ((ftdi->type != TYPE_AM) && (ftdi->type != TYPE_230X))
{
// Addr 0A: Chip configuration
// Bit 7: 0 - reserved
// Bit 0: 1 - In EndPoint is Isochronous
//
j = 0;
- if (eeprom->in_is_isochronous == 1)
+ if (eeprom->in_is_isochronous)
j = j | 1;
- if (eeprom->out_is_isochronous == 1)
+ if (eeprom->out_is_isochronous)
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)
+ // 0xa0 (TYPE_232H)
i = 0;
switch (ftdi->type)
{
case TYPE_AM:
case TYPE_BM:
i += 0x94;
+ break;
+ case TYPE_232H:
+ case TYPE_230X:
+ i = 0xa0;
+ break;
}
/* Wrap around 0x80 for 128 byte EEPROMS (Internale and 93x46) */
eeprom_size_mask = eeprom->size -1;
+ free_end = i & eeprom_size_mask;
// Addr 0E: Offset of the manufacturer string + 0x80, calculated later
// Addr 0F: Length of manufacturer string
if (ftdi->type > TYPE_AM) /* use_serial not used in AM devices */
{
- if (eeprom->use_serial == USE_SERIAL_NUM )
+ if (eeprom->use_serial)
output[0x0A] |= USE_SERIAL_NUM;
else
output[0x0A] &= ~USE_SERIAL_NUM;
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)
+ if (eeprom->use_usb_version)
output[0x0A] |= USE_USB_VERSION_BIT;
else
output[0x0A] &= ~USE_USB_VERSION_BIT;
break;
case TYPE_2232C:
- output[0x00] = (eeprom->channel_a_type);
+ output[0x00] = type2bit(eeprom->channel_a_type, TYPE_2232C);
if ( eeprom->channel_a_driver == DRIVER_VCP)
output[0x00] |= DRIVER_VCP;
else
else
output[0x00] &= ~HIGH_CURRENT_DRIVE;
- output[0x01] = (eeprom->channel_b_type);
+ output[0x01] = type2bit(eeprom->channel_b_type, TYPE_2232C);
if ( eeprom->channel_b_driver == DRIVER_VCP)
output[0x01] |= DRIVER_VCP;
else
else
output[0x01] &= ~HIGH_CURRENT_DRIVE;
- if (eeprom->in_is_isochronous == 1)
+ if (eeprom->in_is_isochronous)
output[0x0A] |= 0x1;
else
output[0x0A] &= ~0x1;
- if (eeprom->out_is_isochronous == 1)
+ if (eeprom->out_is_isochronous)
output[0x0A] |= 0x2;
else
output[0x0A] &= ~0x2;
- if (eeprom->suspend_pull_downs == 1)
+ if (eeprom->suspend_pull_downs)
output[0x0A] |= 0x4;
else
output[0x0A] &= ~0x4;
- if (eeprom->use_usb_version == USE_USB_VERSION_BIT)
+ if (eeprom->use_usb_version)
output[0x0A] |= USE_USB_VERSION_BIT;
else
output[0x0A] &= ~USE_USB_VERSION_BIT;
output[0x14] = eeprom->chip;
break;
case TYPE_R:
+ output[0x00] = type2bit(eeprom->channel_a_type, TYPE_R);
if (eeprom->high_current == HIGH_CURRENT_DRIVE_R)
output[0x00] |= HIGH_CURRENT_DRIVE_R;
+ if (eeprom->external_oscillator)
+ output[0x00] |= 0x02;
output[0x01] = 0x40; /* Hard coded Endpoint Size*/
- if (eeprom->suspend_pull_downs == 1)
+ if (eeprom->suspend_pull_downs)
output[0x0A] |= 0x4;
else
output[0x0A] &= ~0x4;
output[0x0C] = eeprom->usb_version & 0xff;
output[0x0D] = (eeprom->usb_version>>8) & 0xff;
- if (eeprom->cbus_function[0] > CBUS_BB)
+ if (eeprom->cbus_function[0] > CBUS_BB_RD)
output[0x14] = CBUS_TXLED;
else
output[0x14] = eeprom->cbus_function[0];
- if (eeprom->cbus_function[1] > CBUS_BB)
+ if (eeprom->cbus_function[1] > CBUS_BB_RD)
output[0x14] |= CBUS_RXLED<<4;
else
output[0x14] |= eeprom->cbus_function[1]<<4;
- if (eeprom->cbus_function[2] > CBUS_BB)
+ if (eeprom->cbus_function[2] > CBUS_BB_RD)
output[0x15] = CBUS_TXDEN;
else
output[0x15] = eeprom->cbus_function[2];
- if (eeprom->cbus_function[3] > CBUS_BB)
+ if (eeprom->cbus_function[3] > CBUS_BB_RD)
output[0x15] |= CBUS_PWREN<<4;
else
output[0x15] |= eeprom->cbus_function[3]<<4;
output[0x16] = eeprom->cbus_function[4];
break;
case TYPE_2232H:
- output[0x00] = (eeprom->channel_a_type);
+ output[0x00] = type2bit(eeprom->channel_a_type, TYPE_2232H);
if ( eeprom->channel_a_driver == DRIVER_VCP)
output[0x00] |= DRIVER_VCP;
else
output[0x00] &= ~DRIVER_VCP;
- output[0x01] = (eeprom->channel_b_type);
+ output[0x01] = type2bit(eeprom->channel_b_type, TYPE_2232H);
if ( eeprom->channel_b_driver == DRIVER_VCP)
output[0x01] |= DRIVER_VCP;
else
else
output[0x01] &= ~SUSPEND_DBUS7_BIT;
- if (eeprom->suspend_pull_downs == 1)
+ if (eeprom->suspend_pull_downs)
output[0x0A] |= 0x4;
else
output[0x0A] &= ~0x4;
break;
case TYPE_4232H:
- fprintf(stderr,"FIXME: Build FT4232H specific EEPROM settings\n");
+ if (eeprom->channel_a_driver == DRIVER_VCP)
+ output[0x00] |= DRIVER_VCP;
+ else
+ output[0x00] &= ~DRIVER_VCP;
+ if (eeprom->channel_b_driver == DRIVER_VCP)
+ output[0x01] |= DRIVER_VCP;
+ else
+ output[0x01] &= ~DRIVER_VCP;
+ if (eeprom->channel_c_driver == DRIVER_VCP)
+ output[0x00] |= (DRIVER_VCP << 4);
+ else
+ output[0x00] &= ~(DRIVER_VCP << 4);
+ if (eeprom->channel_d_driver == DRIVER_VCP)
+ output[0x01] |= (DRIVER_VCP << 4);
+ else
+ output[0x01] &= ~(DRIVER_VCP << 4);
+
+ if (eeprom->suspend_pull_downs)
+ output[0x0a] |= 0x4;
+ else
+ output[0x0a] &= ~0x4;
+
+ if (eeprom->channel_a_rs485enable)
+ output[0x0b] |= CHANNEL_IS_RS485 << 0;
+ else
+ output[0x0b] &= ~(CHANNEL_IS_RS485 << 0);
+ if (eeprom->channel_b_rs485enable)
+ output[0x0b] |= CHANNEL_IS_RS485 << 1;
+ else
+ output[0x0b] &= ~(CHANNEL_IS_RS485 << 1);
+ if (eeprom->channel_c_rs485enable)
+ output[0x0b] |= CHANNEL_IS_RS485 << 2;
+ else
+ output[0x0b] &= ~(CHANNEL_IS_RS485 << 2);
+ if (eeprom->channel_d_rs485enable)
+ output[0x0b] |= CHANNEL_IS_RS485 << 3;
+ else
+ output[0x0b] &= ~(CHANNEL_IS_RS485 << 3);
+
+ 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_232H:
+ output[0x00] = type2bit(eeprom->channel_a_type, TYPE_232H);
+ if ( eeprom->channel_a_driver == DRIVER_VCP)
+ output[0x00] |= DRIVER_VCPH;
+ else
+ output[0x00] &= ~DRIVER_VCPH;
+ if (eeprom->powersave)
+ output[0x01] |= POWER_SAVE_DISABLE_H;
+ else
+ output[0x01] &= ~POWER_SAVE_DISABLE_H;
+
+ if (eeprom->suspend_pull_downs)
+ output[0x0a] |= 0x4;
+ else
+ output[0x0a] &= ~0x4;
+
+ if (eeprom->clock_polarity)
+ output[0x01] |= FT1284_CLK_IDLE_STATE;
+ else
+ output[0x01] &= ~FT1284_CLK_IDLE_STATE;
+ if (eeprom->data_order)
+ output[0x01] |= FT1284_DATA_LSB;
+ else
+ output[0x01] &= ~FT1284_DATA_LSB;
+ if (eeprom->flow_control)
+ output[0x01] |= FT1284_FLOW_CONTROL;
+ else
+ output[0x01] &= ~FT1284_FLOW_CONTROL;
+ 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[0x0d] |= DRIVE_16MA;
+ else
+ output[0x0d] |= eeprom->group1_drive;
+ if (eeprom->group1_schmitt == IS_SCHMITT)
+ output[0x0d] |= IS_SCHMITT;
+ if (eeprom->group1_slew == SLOW_SLEW)
+ output[0x0d] |= SLOW_SLEW;
+
+ set_ft232h_cbus(eeprom, output);
+
+ output[0x1e] = eeprom->chip;
+ fprintf(stderr,"FIXME: Build FT232H specific EEPROM settings\n");
+ break;
+ case TYPE_230X:
+ output[0x00] = 0x80; /* Actually, leave the default value */
+ output[0x0a] = 0x08; /* Enable USB Serial Number */
+ /*FIXME: Make DBUS & CBUS Control configurable*/
+ output[0x0c] = 0; /* DBUS drive 4mA, CBUS drive 4 mA like factory default */
+ for (j = 0; j <= 6; j++)
+ {
+ output[0x1a + j] = eeprom->cbus_function[j];
+ }
+ output[0x0b] = eeprom->invert;
+ break;
+ }
+
+ /* First address without use */
+ free_start = 0;
+ switch (ftdi->type)
+ {
+ case TYPE_230X:
+ free_start += 2;
+ case TYPE_232H:
+ free_start += 6;
+ case TYPE_2232H:
+ case TYPE_4232H:
+ free_start += 2;
+ case TYPE_R:
+ free_start += 2;
+ case TYPE_2232C:
+ free_start++;
+ case TYPE_AM:
+ case TYPE_BM:
+ free_start += 0x14;
+ }
+
+ /* Arbitrary user data */
+ if (eeprom->user_data && eeprom->user_data_size >= 0)
+ {
+ if (eeprom->user_data_addr < free_start)
+ fprintf(stderr,"Warning, user data starts inside the generated data!\n");
+ if (eeprom->user_data_addr + eeprom->user_data_size >= free_end)
+ fprintf(stderr,"Warning, user data overlaps the strings area!\n");
+ if (eeprom->user_data_addr + eeprom->user_data_size > eeprom->size)
+ ftdi_error_return(-1,"eeprom size exceeded");
+ memcpy(output + eeprom->user_data_addr, eeprom->user_data, eeprom->user_data_size);
}
// calculate checksum
for (i = 0; i < eeprom->size/2-1; i++)
{
- value = output[i*2];
- value += output[(i*2)+1] << 8;
-
+ if ((ftdi->type == TYPE_230X) && (i == 0x12))
+ {
+ /* FT230X has a user section in the MTP which is not part of the checksum */
+ i = 0x40;
+ }
+ if ((ftdi->type == TYPE_230X) && (i >= 0x40) && (i < 0x50)) {
+ uint16_t data;
+ if (ftdi_read_eeprom_location(ftdi, i, &data)) {
+ fprintf(stderr, "Reading Factory Configuration Data failed\n");
+ i = 0x50;
+ }
+ value = data;
+ }
+ else {
+ value = output[i*2];
+ value += output[(i*2)+1] << 8;
+ }
checksum = value^checksum;
checksum = (checksum << 1) | (checksum >> 15);
}
output[eeprom->size-2] = checksum;
output[eeprom->size-1] = checksum >> 8;
+ eeprom->initialized_for_connected_device = 1;
return user_area_size;
}
+/* Decode the encoded EEPROM field for the FTDI Mode into a value for the abstracted
+ * EEPROM structure
+ *
+ * FTD2XX doesn't allow to set multiple bits in the interface mode bitfield, and so do we
+ */
+static unsigned char bit2type(unsigned char bits)
+{
+ switch (bits)
+ {
+ case 0: return CHANNEL_IS_UART;
+ case 1: return CHANNEL_IS_FIFO;
+ case 2: return CHANNEL_IS_OPTO;
+ case 4: return CHANNEL_IS_CPU;
+ case 8: return CHANNEL_IS_FT1284;
+ default:
+ fprintf(stderr," Unexpected value %d for Hardware Interface type\n",
+ bits);
+ }
+ return 0;
+}
+/* Decode 230X / 232R type chips invert bits
+ * Prints directly to stdout.
+*/
+static void print_inverted_bits(int invert)
+{
+ const char *r_bits[] = {"TXD","RXD","RTS","CTS","DTR","DSR","DCD","RI"};
+ int i;
+
+ fprintf(stdout,"Inverted bits:");
+ for (i=0; i<8; i++)
+ if ((invert & (1<<i)) == (1<<i))
+ fprintf(stdout," %s",r_bits[i]);
+ fprintf(stdout,"\n");
+}
/**
Decode binary EEPROM image into an ftdi_eeprom structure.
+ For FT-X devices use AN_201 FT-X MTP memory Configuration to decode.
+
\param ftdi pointer to ftdi_context
\param verbose Decode EEPROM on stdout
*/
int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose)
{
- unsigned char i, j;
+ int i, j;
unsigned short checksum, eeprom_checksum, value;
unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0;
int eeprom_size;
struct ftdi_eeprom *eeprom;
- unsigned char *buf = ftdi->eeprom->buf;
- int release;
+ unsigned char *buf = NULL;
if (ftdi == NULL)
ftdi_error_return(-1,"No context");
eeprom = ftdi->eeprom;
eeprom_size = eeprom->size;
+ buf = ftdi->eeprom->buf;
// Addr 02: Vendor ID
eeprom->vendor_id = buf[0x02] + (buf[0x03] << 8);
// Addr 04: Product ID
eeprom->product_id = buf[0x04] + (buf[0x05] << 8);
- release = buf[0x06] + (buf[0x07]<<8);
+ // Addr 06: Device release number
+ eeprom->release_number = buf[0x06] + (buf[0x07]<<8);
// Addr 08: Config descriptor
// Bit 7: always 1
eeprom->remote_wakeup = buf[0x08] & 0x20;
// Addr 09: Max power consumption: max power = value * 2 mA
- eeprom->max_power = buf[0x09];
+ eeprom->max_power = MAX_POWER_MILLIAMP_PER_UNIT * buf[0x09];
// Addr 0A: Chip configuration
// Bit 7: 0 - reserved
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;
+ eeprom->use_serial = !!(buf[0x0A] & USE_SERIAL_NUM);
+ eeprom->use_usb_version = !!(buf[0x0A] & USE_USB_VERSION_BIT);
// Addr 0C: USB version low byte when 0x0A
// Addr 0D: USB version high byte when 0x0A
free(eeprom->manufacturer);
if (manufacturer_size > 0)
{
- eeprom->manufacturer = malloc(manufacturer_size);
+ eeprom->manufacturer = (char *)malloc(manufacturer_size);
if (eeprom->manufacturer)
{
// Decode manufacturer
i = buf[0x0E] & (eeprom_size -1); // offset
- for (j=0;j<manufacturer_size-1;j++)
+ for (j=0; j<manufacturer_size-1; j++)
{
eeprom->manufacturer[j] = buf[2*j+i+2];
}
product_size = buf[0x11]/2;
if (product_size > 0)
{
- eeprom->product = malloc(product_size);
+ eeprom->product = (char *)malloc(product_size);
if (eeprom->product)
{
// Decode product name
i = buf[0x10] & (eeprom_size -1); // offset
- for (j=0;j<product_size-1;j++)
+ for (j=0; j<product_size-1; j++)
{
eeprom->product[j] = buf[2*j+i+2];
}
serial_size = buf[0x13]/2;
if (serial_size > 0)
{
- eeprom->serial = malloc(serial_size);
+ eeprom->serial = (char *)malloc(serial_size);
if (eeprom->serial)
{
// Decode serial
i = buf[0x12] & (eeprom_size -1); // offset
- for (j=0;j<serial_size-1;j++)
+ for (j=0; j<serial_size-1; j++)
{
eeprom->serial[j] = buf[2*j+i+2];
}
for (i = 0; i < eeprom_size/2-1; i++)
{
+ if ((ftdi->type == TYPE_230X) && (i == 0x12))
+ {
+ /* FT230X has a user section in the MTP which is not part of the checksum */
+ i = 0x40;
+ }
value = buf[i*2];
value += buf[(i*2)+1] << 8;
}
else if (ftdi->type == TYPE_2232C)
{
- eeprom->channel_a_type = buf[0x00] & 0x7;
+ eeprom->channel_a_type = bit2type(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;
else if (ftdi->type == TYPE_R)
{
/* TYPE_R flags D2XX, not VCP as all others*/
- eeprom->channel_a_driver = (~buf[0x00]) & DRIVER_VCP;
+ eeprom->channel_a_driver = ~buf[0x00] & DRIVER_VCP;
eeprom->high_current = buf[0x00] & HIGH_CURRENT_DRIVE_R;
+ eeprom->external_oscillator = buf[0x00] & 0x02;
if ( (buf[0x01]&0x40) != 0x40)
fprintf(stderr,
"TYPE_R EEPROM byte[0x01] Bit 6 unexpected Endpoint size."
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))
+ 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->channel_a_type = bit2type(buf[0x00] & 0x7);
+ eeprom->channel_b_type = bit2type(buf[0x01] & 0x7);
eeprom->suspend_dbus7 = buf[0x01] & SUSPEND_DBUS7_BIT;
+ }
+ else
+ {
+ eeprom->channel_c_driver = (buf[0x00] >> 4) & DRIVER_VCP;
+ eeprom->channel_d_driver = (buf[0x01] >> 4) & DRIVER_VCP;
+ eeprom->channel_a_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 0);
+ eeprom->channel_b_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 1);
+ eeprom->channel_c_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 2);
+ eeprom->channel_d_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 3);
+ }
eeprom->chip = buf[0x18];
eeprom->group0_drive = buf[0x0c] & DRIVE_16MA;
eeprom->group3_schmitt = (buf[0x0d] >> 4) & IS_SCHMITT;
eeprom->group3_slew = (buf[0x0d] >> 4) & SLOW_SLEW;
}
+ else if (ftdi->type == TYPE_232H)
+ {
+ eeprom->channel_a_type = buf[0x00] & 0xf;
+ eeprom->channel_a_driver = (buf[0x00] & DRIVER_VCPH)?DRIVER_VCP:0;
+ eeprom->clock_polarity = buf[0x01] & FT1284_CLK_IDLE_STATE;
+ eeprom->data_order = buf[0x01] & FT1284_DATA_LSB;
+ eeprom->flow_control = buf[0x01] & FT1284_FLOW_CONTROL;
+ eeprom->powersave = buf[0x01] & POWER_SAVE_DISABLE_H;
+ 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[0x0d] & DRIVE_16MA;
+ eeprom->group1_schmitt = buf[0x0d] & IS_SCHMITT;
+ eeprom->group1_slew = buf[0x0d] & SLOW_SLEW;
+
+ for(i=0; i<5; i++)
+ {
+ eeprom->cbus_function[2*i ] = buf[0x18+i] & 0x0f;
+ eeprom->cbus_function[2*i+1] = (buf[0x18+i] >> 4) & 0x0f;
+ }
+ eeprom->chip = buf[0x1e];
+ /*FIXME: Decipher more values*/
+ }
+ else if (ftdi->type == TYPE_230X)
+ {
+ for(i=0; i<4; i++)
+ {
+ eeprom->cbus_function[i] = buf[0x1a + i] & 0xFF;
+ }
+ eeprom->group0_drive = buf[0x0c] & 0x03;
+ eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT;
+ eeprom->group0_slew = buf[0x0c] & SLOW_SLEW;
+ eeprom->group1_drive = (buf[0x0c] >> 4) & 0x03;
+ eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT;
+ eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW;
+
+ eeprom->invert = buf[0xb];
+ }
if (verbose)
{
- char *channel_mode[] = {"UART","245","CPU", "unknown", "OPTO"};
+ const char *channel_mode[] = {"UART", "FIFO", "CPU", "OPTO", "FT1284"};
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);
+ fprintf(stdout, "Release: 0x%04x\n",eeprom->release_number);
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,
+ fprintf(stdout, "Bus Powered: %3d mA%s", eeprom->max_power,
(eeprom->remote_wakeup)?" USB Remote Wake Up\n":"\n");
if (eeprom->manufacturer)
fprintf(stdout, "Manufacturer: %s\n",eeprom->manufacturer);
if (eeprom->serial)
fprintf(stdout, "Serial: %s\n",eeprom->serial);
fprintf(stdout, "Checksum : %04x\n", checksum);
- if (ftdi->type == TYPE_R)
+ if (ftdi->type == TYPE_R) {
fprintf(stdout, "Internal EEPROM\n");
+ fprintf(stdout,"Oscillator: %s\n", eeprom->external_oscillator?"External":"Internal");
+ }
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->powersave)
+ {
+ if(ftdi->type >= TYPE_232H)
+ fprintf(stdout,"Enter low power state on ACBUS7\n");
+ }
if (eeprom->remote_wakeup)
fprintf(stdout, "Enable Remote Wake Up\n");
fprintf(stdout, "PNP: %d\n",(eeprom->is_not_pnp)?0:1);
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))
+ if (ftdi->type == TYPE_232H)
+ {
+ fprintf(stdout,"FT1284 Mode Clock is idle %s, %s first, %sFlow Control\n",
+ (eeprom->clock_polarity)?"HIGH":"LOW",
+ (eeprom->data_order)?"LSB":"MSB",
+ (eeprom->flow_control)?"":"No ");
+ }
+ if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H))
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)
+ eeprom->use_usb_version)
fprintf(stdout,"Use explicit USB Version %04x\n",eeprom->usb_version);
if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H))
(eeprom->group3_schmitt)?" Schmitt Input":"",
(eeprom->group3_slew)?" Slow Slew":"");
}
+ else if (ftdi->type == TYPE_232H)
+ {
+ const char *cbush_mux[] = {"TRISTATE","TXLED","RXLED", "TXRXLED","PWREN",
+ "SLEEP","DRIVE_0","DRIVE_1","IOMODE","TXDEN",
+ "CLK30","CLK15","CLK7_5"
+ };
+ fprintf(stdout,"ACBUS has %d mA drive%s%s\n",
+ (eeprom->group0_drive+1) *4,
+ (eeprom->group0_schmitt)?" Schmitt Input":"",
+ (eeprom->group0_slew)?" Slow Slew":"");
+ fprintf(stdout,"ADBUS has %d mA drive%s%s\n",
+ (eeprom->group1_drive+1) *4,
+ (eeprom->group1_schmitt)?" Schmitt Input":"",
+ (eeprom->group1_slew)?" Slow Slew":"");
+ for (i=0; i<10; i++)
+ {
+ if (eeprom->cbus_function[i]<= CBUSH_CLK7_5 )
+ fprintf(stdout,"C%d Function: %s\n", i,
+ cbush_mux[eeprom->cbus_function[i]]);
+ }
+ }
+ else if (ftdi->type == TYPE_230X)
+ {
+ const char *cbusx_mux[] = {"TRISTATE","TXLED","RXLED", "TXRXLED","PWREN",
+ "SLEEP","DRIVE_0","DRIVE_1","IOMODE","TXDEN",
+ "CLK24","CLK12","CLK6","BAT_DETECT","BAT_DETECT#",
+ "I2C_TXE#", "I2C_RXF#", "VBUS_SENSE", "BB_WR#",
+ "BBRD#", "TIME_STAMP", "AWAKE#",
+ };
+ fprintf(stdout,"DBUS has %d mA drive%s%s\n",
+ (eeprom->group0_drive+1) *4,
+ (eeprom->group0_schmitt)?" Schmitt Input":"",
+ (eeprom->group0_slew)?" Slow Slew":"");
+ fprintf(stdout,"CBUS has %d mA drive%s%s\n",
+ (eeprom->group1_drive+1) *4,
+ (eeprom->group1_schmitt)?" Schmitt Input":"",
+ (eeprom->group1_slew)?" Slow Slew":"");
+ for (i=0; i<4; i++)
+ {
+ if (eeprom->cbus_function[i]<= CBUSX_AWAKE)
+ fprintf(stdout,"CBUS%d Function: %s\n", i, cbusx_mux[eeprom->cbus_function[i]]);
+ }
+
+ if (eeprom->invert)
+ print_inverted_bits(eeprom->invert);
+ }
+
if (ftdi->type == TYPE_R)
{
- char *cbus_mux[] = {"TXDEN","PWREN","RXLED", "TXLED","TX+RXLED",
+ const 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"};
+ const 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");
- }
+ print_inverted_bits(eeprom->invert);
+
for (i=0; i<5; i++)
{
- if (eeprom->cbus_function[i]<CBUS_BB)
+ if (eeprom->cbus_function[i]<=CBUS_BB_RD)
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;
+ if (i < 4)
+ /* Running MPROG show that C0..3 have fixed function Synchronous
+ Bit Bang mode */
+ fprintf(stdout,"C%d BB Function: %s\n", i,
+ cbus_BB[i]);
+ else
+ fprintf(stdout, "Unknown CBUS mode. Might be special mode?\n");
}
}
}
case PRODUCT_ID:
*value = ftdi->eeprom->product_id;
break;
+ case RELEASE_NUMBER:
+ *value = ftdi->eeprom->release_number;
+ break;
case SELF_POWERED:
*value = ftdi->eeprom->self_powered;
break;
case IN_IS_ISOCHRONOUS:
*value = ftdi->eeprom->in_is_isochronous;
break;
+ case OUT_IS_ISOCHRONOUS:
+ *value = ftdi->eeprom->out_is_isochronous;
+ break;
case SUSPEND_PULL_DOWNS:
*value = ftdi->eeprom->suspend_pull_downs;
break;
case USB_VERSION:
*value = ftdi->eeprom->usb_version;
break;
+ case USE_USB_VERSION:
+ *value = ftdi->eeprom->use_usb_version;
+ break;
case MAX_POWER:
*value = ftdi->eeprom->max_power;
break;
case CHANNEL_B_DRIVER:
*value = ftdi->eeprom->channel_b_driver;
break;
+ case CHANNEL_C_DRIVER:
+ *value = ftdi->eeprom->channel_c_driver;
+ break;
+ case CHANNEL_D_DRIVER:
+ *value = ftdi->eeprom->channel_d_driver;
+ break;
+ case CHANNEL_A_RS485:
+ *value = ftdi->eeprom->channel_a_rs485enable;
+ break;
+ case CHANNEL_B_RS485:
+ *value = ftdi->eeprom->channel_b_rs485enable;
+ break;
+ case CHANNEL_C_RS485:
+ *value = ftdi->eeprom->channel_c_rs485enable;
+ break;
+ case CHANNEL_D_RS485:
+ *value = ftdi->eeprom->channel_d_rs485enable;
+ break;
case CBUS_FUNCTION_0:
*value = ftdi->eeprom->cbus_function[0];
break;
case CBUS_FUNCTION_4:
*value = ftdi->eeprom->cbus_function[4];
break;
+ case CBUS_FUNCTION_5:
+ *value = ftdi->eeprom->cbus_function[5];
+ break;
+ case CBUS_FUNCTION_6:
+ *value = ftdi->eeprom->cbus_function[6];
+ break;
+ case CBUS_FUNCTION_7:
+ *value = ftdi->eeprom->cbus_function[7];
+ break;
+ case CBUS_FUNCTION_8:
+ *value = ftdi->eeprom->cbus_function[8];
+ break;
+ case CBUS_FUNCTION_9:
+ *value = ftdi->eeprom->cbus_function[9];
+ break;
case HIGH_CURRENT:
*value = ftdi->eeprom->high_current;
break;
case GROUP3_SLEW:
*value = ftdi->eeprom->group3_slew;
break;
+ case POWER_SAVE:
+ *value = ftdi->eeprom->powersave;
+ break;
+ case CLOCK_POLARITY:
+ *value = ftdi->eeprom->clock_polarity;
+ break;
+ case DATA_ORDER:
+ *value = ftdi->eeprom->data_order;
+ break;
+ case FLOW_CONTROL:
+ *value = ftdi->eeprom->flow_control;
+ break;
case CHIP_TYPE:
*value = ftdi->eeprom->chip;
break;
case CHIP_SIZE:
*value = ftdi->eeprom->size;
break;
+ case EXTERNAL_OSCILLATOR:
+ *value = ftdi->eeprom->external_oscillator;
+ break;
default:
ftdi_error_return(-1, "Request for unknown EEPROM value");
}
case PRODUCT_ID:
ftdi->eeprom->product_id = value;
break;
+ case RELEASE_NUMBER:
+ ftdi->eeprom->release_number = value;
+ break;
case SELF_POWERED:
ftdi->eeprom->self_powered = value;
break;
case IN_IS_ISOCHRONOUS:
ftdi->eeprom->in_is_isochronous = value;
break;
+ case OUT_IS_ISOCHRONOUS:
+ ftdi->eeprom->out_is_isochronous = value;
+ break;
case SUSPEND_PULL_DOWNS:
ftdi->eeprom->suspend_pull_downs = value;
break;
case USB_VERSION:
ftdi->eeprom->usb_version = value;
break;
+ case USE_USB_VERSION:
+ ftdi->eeprom->use_usb_version = value;
+ break;
case MAX_POWER:
ftdi->eeprom->max_power = value;
break;
case CHANNEL_B_DRIVER:
ftdi->eeprom->channel_b_driver = value;
break;
+ case CHANNEL_C_DRIVER:
+ ftdi->eeprom->channel_c_driver = value;
+ break;
+ case CHANNEL_D_DRIVER:
+ ftdi->eeprom->channel_d_driver = value;
+ break;
+ case CHANNEL_A_RS485:
+ ftdi->eeprom->channel_a_rs485enable = value;
+ break;
+ case CHANNEL_B_RS485:
+ ftdi->eeprom->channel_b_rs485enable = value;
+ break;
+ case CHANNEL_C_RS485:
+ ftdi->eeprom->channel_c_rs485enable = value;
+ break;
+ case CHANNEL_D_RS485:
+ ftdi->eeprom->channel_d_rs485enable = value;
+ break;
case CBUS_FUNCTION_0:
ftdi->eeprom->cbus_function[0] = value;
break;
case CBUS_FUNCTION_4:
ftdi->eeprom->cbus_function[4] = value;
break;
+ case CBUS_FUNCTION_5:
+ ftdi->eeprom->cbus_function[5] = value;
+ break;
+ case CBUS_FUNCTION_6:
+ ftdi->eeprom->cbus_function[6] = value;
+ break;
+ case CBUS_FUNCTION_7:
+ ftdi->eeprom->cbus_function[7] = value;
+ break;
+ case CBUS_FUNCTION_8:
+ ftdi->eeprom->cbus_function[8] = value;
+ break;
+ case CBUS_FUNCTION_9:
+ ftdi->eeprom->cbus_function[9] = value;
+ break;
case HIGH_CURRENT:
ftdi->eeprom->high_current = value;
break;
case CHIP_TYPE:
ftdi->eeprom->chip = value;
break;
+ case POWER_SAVE:
+ ftdi->eeprom->powersave = value;
+ break;
+ case CLOCK_POLARITY:
+ ftdi->eeprom->clock_polarity = value;
+ break;
+ case DATA_ORDER:
+ ftdi->eeprom->data_order = value;
+ break;
+ case FLOW_CONTROL:
+ ftdi->eeprom->flow_control = value;
+ break;
case CHIP_SIZE:
ftdi_error_return(-2, "EEPROM Value can't be changed");
+ break;
+ case EXTERNAL_OSCILLATOR:
+ ftdi->eeprom->external_oscillator = value;
+ break;
+ case USER_DATA_ADDR:
+ ftdi->eeprom->user_data_addr = value;
+ break;
+
default :
ftdi_error_return(-1, "Request to unknown EEPROM value");
}
+ ftdi->eeprom->initialized_for_connected_device = 0;
return 0;
}
return 0;
}
+/** Set the EEPROM content from the user-supplied prefilled buffer
+
+ \param ftdi pointer to ftdi_context
+ \param buf buffer to read EEPROM content
+ \param size Size of buffer
+
+ \retval 0: All fine
+ \retval -1: struct ftdi_context or ftdi_eeprom or buf missing
+*/
+int ftdi_set_eeprom_buf(struct ftdi_context *ftdi, const unsigned char * buf, int size)
+{
+ if (!ftdi || !(ftdi->eeprom) || !buf)
+ ftdi_error_return(-1, "No appropriate structure");
+
+ // Only copy up to FTDI_MAX_EEPROM_SIZE bytes
+ if (size > FTDI_MAX_EEPROM_SIZE)
+ size = FTDI_MAX_EEPROM_SIZE;
+
+ memcpy(ftdi->eeprom->buf, buf, size);
+
+ return 0;
+}
+
+/** Set the EEPROM user data content from the user-supplied prefilled buffer
+
+ \param ftdi pointer to ftdi_context
+ \param buf buffer to read EEPROM user data content
+ \param size Size of buffer
+
+ \retval 0: All fine
+ \retval -1: struct ftdi_context or ftdi_eeprom or buf missing
+*/
+int ftdi_set_eeprom_user_data(struct ftdi_context *ftdi, const char * buf, int size)
+{
+ if (!ftdi || !(ftdi->eeprom) || !buf)
+ ftdi_error_return(-1, "No appropriate structure");
+
+ ftdi->eeprom->user_data_size = size;
+ ftdi->eeprom->user_data = buf;
+ return 0;
+}
+
/**
Read eeprom location
*/
int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val)
{
+ unsigned char buf[2];
+
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
- if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_READ_EEPROM_REQUEST, 0, eeprom_addr, (unsigned char *)eeprom_val, 2, ftdi->usb_read_timeout) != 2)
+ if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_READ_EEPROM_REQUEST, 0, eeprom_addr, buf, 2, ftdi->usb_read_timeout) != 2)
ftdi_error_return(-1, "reading eeprom failed");
+ *eeprom_val = (0xff & buf[0]) | (buf[1] << 8);
+
return 0;
}
case TYPE_4232H:
chip_type_location = 0x18;
break;
+ case TYPE_232H:
+ chip_type_location = 0x1e;
+ break;
default:
ftdi_error_return(-4, "Device can't access unprotected area");
}
if (ftdi_read_eeprom_location( ftdi, chip_type_location>>1, &chip_type))
- ftdi_error_return(-5, "Reading failed failed");
+ ftdi_error_return(-5, "Reading failed");
fprintf(stderr," loc 0x%04x val 0x%04x\n", chip_type_location,chip_type);
if ((chip_type & 0xff) != 0x66)
{
\retval 0: all fine
\retval -1: read failed
\retval -2: USB device unavailable
+ \retval -3: EEPROM not initialized for the connected device;
*/
int ftdi_write_eeprom(struct ftdi_context *ftdi)
{
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
+
+ if(ftdi->eeprom->initialized_for_connected_device == 0)
+ ftdi_error_return(-3, "EEPROM not initialized for the connected device");
+
eeprom = ftdi->eeprom->buf;
/* These commands were traced while running MProg */
for (i = 0; i < ftdi->eeprom->size/2; i++)
{
+ /* Do not try to write to reserved area */
+ if ((ftdi->type == TYPE_230X) && (i == 0x40))
+ {
+ i = 0x50;
+ }
usb_val = eeprom[i*2];
usb_val += eeprom[(i*2)+1] << 8;
if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE,
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
- if (ftdi->type == TYPE_R)
+ if ((ftdi->type == TYPE_R) || (ftdi->type == TYPE_230X))
{
ftdi->eeprom->chip = 0;
return 0;
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");
+ ftdi_error_return(-4, "Reading 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");
+ ftdi_error_return(-4, "Reading 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");
+ ftdi_error_return(-4, "Reading failed");
if (eeprom_value == MAGIC)
ftdi->eeprom->chip = 0x66;
else
\retval Pointer to error string
*/
-char *ftdi_get_error_string (struct ftdi_context *ftdi)
+const char *ftdi_get_error_string (struct ftdi_context *ftdi)
{
if (ftdi == NULL)
return "";
git://developer.intra2net.com / libftdi / blobdiff