Changeset 200 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc

Timestamp:

Nov 22, 2011, 8:38:36 AM (12 years ago)

Author:

gregli@…

google:author:

gregli@hotmail.com

Message:

Added logic to skip scanning COM ports if a COM port was already found during the normal detection process, to avoid finding the same serial drive twice and preseting the OS with two drives which in reality point to the same physical file on the server. Also added logic to skip scanning for the slave serial drive if the master was not found. And various small optimizations.

File:

• trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc

@@ -100 +100 @@
 ;   baud rate = b, where 00 = 2400, 01 = 9600, 10 = 38.4K, 11 = 115.2K
 ;
-DEVICE_SERIAL_PACKEDPORTANDBAUD_PORTMASK        EQU     0fch
-DEVICE_SERIAL_PACKEDPORTANDBAUD_PORTBITS        EQU     03fh
-DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT    EQU     240h
-DEVICE_SERIAL_PACKEDPORTANDBAUD_BAUDMASK        EQU     3h
-DEVICE_SERIAL_PACKEDPORTANDBAUD_BAUDBITS        EQU     3h
+; 240h/2400baud corresponds to 0 for a PackedPortAndBaud value, which is reserved (in case we need
+; it to know if a value has been set).  Which is why ..._MINPORT is 248h.
+;
+DEVICE_SERIAL_PACKEDPORTANDBAUD_PORTMASK            EQU     0fch
+DEVICE_SERIAL_PACKEDPORTANDBAUD_PORTBITS            EQU     03fh
+DEVICE_SERIAL_PACKEDPORTANDBAUD_PORT_FIELD_POSITION EQU     2
+DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT        EQU     240h
+DEVICE_SERIAL_PACKEDPORTANDBAUD_MINPORT             EQU     248h        ; minimum port value that the user can set
+DEVICE_SERIAL_PACKEDPORTANDBAUD_MAXPORT             EQU     438h        ; or (..._PORTMASK << 1) + ..._STARTINGPORT
+
+DEVICE_SERIAL_PACKEDPORTANDBAUD_BAUDMASK            EQU     3h
+DEVICE_SERIAL_PACKEDPORTANDBAUD_BAUDBITS            EQU     3h
+DEVICE_SERIAL_PACKEDPORTANDBAUD_BAUD_FIELD_POSITION EQU     0
 
 ; Defines for IDEVARS.wSerialPrintBaud