Changeset 520 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH0h_HReset.asm

Timestamp:

Mar 9, 2013, 3:36:37 PM (11 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• Slave drives are again initialized properly
• Delay for Hotkeybar now works properly

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH0h_HReset.asm (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH0h_HReset.asm

@@ -122 +122 @@
 
     mov     si, ControllerResetForDPTinDSDI
-    call    .CallSIforEveryDrive                        ; Reset all drives to power on settings
-    mov     si, AH9h_InitializeDriveForUse
-    ; Fall to .CallSIforEveryDrive                      ; Initialize all drives
-
-.CallSIforEveryDrive:                                   ; BH will be garbage on exit if this entry point is used,
+    call    .CallSIforEveryController                   ; Reset all drives to power on settings
+    mov     si, ControllerInitForMasterOrSingleDPTinDSDI
+    ; Fall to .CallSIforEveryController                 ; Initialize all controllers (Master and Slave drives)
+
+.CallSIforEveryController:                              ; BH will be garbage on exit if this entry point is used,
                                                         ; but reset of all drives will still happen
 
@@ -166 +166 @@
 ;   Returns:
 ;       AH:     Int 13h return status
-;       CF:     0 if successful, 1 if error
 ;   Corrupts registers:
 ;       AL, BX, CX, DX
@@ -180 +179 @@
     jmp     Device_ResetMasterAndSlaveController
 %endif
+
+
+;--------------------------------------------------------------------
+; ControllerInitForMasterOrSingleDPTinDSDI
+;   Parameters:
+;       DS:DI:  Ptr to DPT for Master or Single Drive (initializes both Master and Slave drive)
+;       SS:BP:  Ptr to IDEPACK
+;   Returns:
+;       AH:     Int 13h return status
+;   Corrupts registers:
+;       AL, BX, CX, DX
+;--------------------------------------------------------------------
+ControllerInitForMasterOrSingleDPTinDSDI:
+    call    AH9h_InitializeDriveForUse          ; Init Master or Single drive
+    push    ax                                  ; Store error code
+
+    eMOVZX  ax, BYTE [di+DPT.bIdevarsOffset]    ; Clear AH
+    add     di, BYTE LARGEST_DPT_SIZE           ; Slave drive or next controller
+    cmp     [di+DPT.bIdevarsOffset], al
+    jne     SHORT .NoSlaveDrivePresent
+
+    call    AH9h_InitializeDriveForUse          ; Init Slave drive
+.NoSlaveDrivePresent:
+    pop     bx
+    MAX_U   ah, bh                              ; Return error code from either drive
+    ret