eeprom->usb_version = 0x0101;
else
eeprom->usb_version = 0x0200;
- eeprom->max_power = 50;
+ eeprom->max_power = 100;
if (eeprom->manufacturer)
free (eeprom->manufacturer);
if(ftdi->type == TYPE_R)
{
- eeprom->max_power = 45;
+ eeprom->max_power = 90;
eeprom->size = 0x80;
eeprom->cbus_function[0] = CBUS_TXLED;
eeprom->cbus_function[1] = CBUS_RXLED;
output[0x13] = serial_size*2 + 2;
+ if(ftdi->type > TYPE_AM) /*use_serial not used in AM devices*/
+ {
+ if (eeprom->use_serial == USE_SERIAL_NUM )
+ output[0x0A] |= USE_SERIAL_NUM;
+ else
+ output[0x0A] &= ~USE_SERIAL_NUM;
+ }
/* Fixme: ftd2xx seems to append 0x02, 0x03 and 0x01 for PnP = 0 or 0x00 else */
// calculate checksum
case TYPE_BM:
output[0x0C] = eeprom->usb_version & 0xff;
output[0x0D] = (eeprom->usb_version>>8) & 0xff;
- if (eeprom->use_serial == 1)
- output[0x0A] |= 0x8;
- else
- output[0x0A] &= ~0x8;
output[0x14] = eeprom->chip;
break;
case TYPE_2232C:
output[0x0A] |= 0x4;
else
output[0x0A] &= ~0x4;
- if (eeprom->use_serial == USE_SERIAL_NUM )
- output[0x0A] |= USE_SERIAL_NUM;
- else
- output[0x0A] &= ~0x8;
output[0x0C] = eeprom->usb_version & 0xff;
output[0x0D] = (eeprom->usb_version>>8) & 0xff;
output[0x14] = eeprom->chip;
output[0x0A] |= 0x4;
else
output[0x0A] &= ~0x4;
- if (eeprom->use_serial == USE_SERIAL_NUM)
- output[0x0A] |= USE_SERIAL_NUM;
- else
- output[0x0A] &= ~0x8;
output[0x0B] = eeprom->invert;
output[0x0C] = eeprom->usb_version & 0xff;
output[0x0D] = (eeprom->usb_version>>8) & 0xff;
else
output[0x01] &= ~SUSPEND_DBUS7;
+ if (eeprom->suspend_pull_downs == 1)
+ output[0x0A] |= 0x4;
+ else
+ output[0x0A] &= ~0x4;
+
if(eeprom->group0_drive > DRIVE_16MA)
output[0x0c] |= DRIVE_16MA;
else
}
else if ((ftdi->type == TYPE_2232H) ||(ftdi->type == TYPE_4232H))
{
- eeprom->high_current = buf[0x00] & HIGH_CURRENT_DRIVE_R;
+ 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;
\param eeprom_val Value to be written
\retval 0: all fine
- \retval -1: read failed
+ \retval -1: write failed
\retval -2: USB device unavailable
+ \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_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, unsigned short eeprom_val)
+int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr,
+ unsigned short eeprom_val)
{
+ int chip_type_location;
+ unsigned short chip_type;
+
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
+ if(eeprom_addr <0x80)
+ ftdi_error_return(-2, "Invalid access to checksum protected area below 0x80");
+
+
+ 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");
+ }
+
+ 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)