Changeset 625 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/IDE

Timestamp:

Feb 19, 2023, 9:26:52 PM (21 months ago)

Author:

Krister Nordvall

Message:

Changes:

• Added a configuration option to let the BIOS store RamVars to an UMB when Full operating mode is enabled. This is primarily for XT class machines with RAM in the UMA (which apparently is a common thing these days).
• Added two new builds specifically for IBM PS/2 machines. This is for support of the new McIDE adapter from the guys at zzxio.com. Note that the additional hardware specific code (under the USE_PS2 define) is for the PS/2 machines themselves and not for the McIDE adapters, so any controller in an IBM PS/2 machine can be used with the USE_PS2 define.
• Moved pColorTheme out of the range of ROMVARS being copied over when doing "Load old settings from EEPROM" in XTIDECFG. This fixed a serious bug from r592 where loading a BIOS from file and then loading the old settings from ROM would corrupt 7 bytes of code somewhere in the loaded BIOS.
• Optimizations (speed and size) to the library. Browsing the menus in XTIDECFG should now feel a little less sluggish.
• Hopefully fixed a problem with the PostCommitHook script where it sometimes wouldn't find the CommitInProgress file. I say hopefully because testing this is a nightmare.

Location:

trunk/XTIDE_Universal_BIOS/Src/Device/IDE

Files:

• IdeCommand.asm (modified) (2 diffs)
• IdeTransfer.asm (modified) (4 diffs)

trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeCommand.asm

@@ -4 +4 @@
 ;
 ; XTIDE Universal BIOS and Associated Tools
-; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
+; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2023 by XTIDE Universal BIOS Team.
 ;
 ; This program is free software; you can redistribute it and/or modify
@@ -303 +303 @@
 ;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
-IdeCommand_ReadLBAlowRegisterToAL:
+IdeCommand_ReadLBAlowRegisterToAL:  ; Unused entrypoint OK
     ; HOB bit (defined in 48-bit address feature set) should be zero by default
     ; so we get the correct value for CHS, LBA28 and LBA48 drives and commands

trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeTransfer.asm

@@ -4 +4 @@
 ;
 ; XTIDE Universal BIOS and Associated Tools
-; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
+; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2023 by XTIDE Universal BIOS Team.
 ;
 ; This program is free software; you can redistribute it and/or modify
@@ -50 +50 @@
 ALIGN JUMP_ALIGN
 IdeTransfer_StartWithCommandInAL:
+%ifdef USE_PS2
+    ; Turn on the software controlled HDD LED on IBM PS/2 machines
+    xchg    bx, ax  ; Save AX
+    in      al, 92h ; Read System Control Port A
+    or      al, 80h ; Set bit 7 to turn on LED (bit 6 would also work)
+    out     92h, al ; Write it back
+    xchg    bx, ax  ; Restore AX
+%endif
     ; Are we reading or writing?
     test    al, 16  ; Bit 4 is cleared on all the read commands but set on 3 of the 4 write commands
@@ -124 +132 @@
     ; All sectors successfully transferred
     add     cx, [bp+PIOVARS.bSectorsDone]       ; Never sets CF
+%ifdef USE_PS2
+    ; Turn off the software controlled HDD LED on IBM PS/2 machines
+    in      al, 92h ; Read System Control Port A
+    and     al, 3Fh ; Clear bits 7 and 6 to turn off LED
+    out     92h, al ; Write it back
+%endif
     ret
 
@@ -133 +147 @@
     mov     cl, [bp+PIOVARS.bSectorsDone]
     mov     ch, 0                               ; Preserve CF
+%endif
+%ifdef USE_PS2
+    ; Turn off the software controlled HDD LED on IBM PS/2 machines
+    in      al, 92h ; Read System Control Port A
+    and     al, 3Fh ; Clear bits 7 and 6 to turn off LED (Clears CF)
+    out     92h, al ; Write it back
+    stc             ; Restore the CF
 %endif
     ret