ft230x: Include Factory Configuration Data when building new eeprom data.

[libftdi] / src / ftdi.c

diff --git a/src/ftdi.c b/src/ftdi.c
index 0f1a918..8546319 100644 (file)
--- a/src/ftdi.c
+++ b/src/ftdi.c
@@ -2,7 +2,7 @@
                           ftdi.c  -  description
                              -------------------
     begin                : Fri Apr 4 2003
-    copyright            : (C) 2003-2013 by Intra2net AG and the libftdi developers
+    copyright            : (C) 2003-2014 by Intra2net AG and the libftdi developers
     email                : opensource@intra2net.com
  ***************************************************************************/
 
@@ -470,7 +470,7 @@ static unsigned int _ftdi_determine_max_packet_size(struct ftdi_context *ftdi, l
     // 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 || ftdi->type == TYPE_232H || ftdi->type == TYPE_230X)
+    if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H)
         packet_size = 512;
     else
         packet_size = 64;
@@ -1175,7 +1175,7 @@ static int ftdi_convert_baudrate(int baudrate, struct ftdi_context *ftdi,
 
 #define H_CLK 120000000
 #define C_CLK  48000000
-    if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H) || (ftdi->type == TYPE_232H) || (ftdi->type == TYPE_230X))
+    if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H) || (ftdi->type == TYPE_232H))
     {
         if(baudrate*10 > H_CLK /0x3fff)
         {
@@ -1200,7 +1200,7 @@ static int ftdi_convert_baudrate(int baudrate, struct ftdi_context *ftdi,
     }
     // Split into "value" and "index" values
     *value = (unsigned short)(encoded_divisor & 0xFFFF);
-    if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H || ftdi->type == TYPE_230X)
+    if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H)
     {
         *index = (unsigned short)(encoded_divisor >> 8);
         *index &= 0xFF00;
@@ -3077,9 +3077,18 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi)
             /* FT230X has a user section in the MTP which is not part of the checksum */
             i = 0x40;
         }
-        value = output[i*2];
-        value += output[(i*2)+1] << 8;
-
+        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);
     }
@@ -4217,7 +4226,7 @@ int ftdi_erase_eeprom(struct ftdi_context *ftdi)
     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;