; Project name	:	XTIDE Universal BIOS
; Description	:	Functions for printing drive configuration
;					information on Boot Menu.
;
; Included by BootMenuPrint.asm, this routine is to be inserted into
; BootMenuPrint_HardDiskRefreshInformation.
;

;
; XTIDE Universal BIOS and Associated Tools
; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
; GNU General Public License for more details.
; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
;

; Section containing code
SECTION .text

;;; fall-into from BootMenuPrint_HardDiskRefreshInformation.

;--------------------------------------------------------------------
; Prints Hard Disk configuration for drive handled by our BIOS.
; Cursor is set to configuration header string position.
;
; BootMenuPrintCfg_ForOurDrive
;	Parameters:
;		DS:DI:		Pointer to DPT
;	Returns:
;		Nothing
;	Corrupts registers:
;		AX, BX, CX, DX
;--------------------------------------------------------------------
.BootMenuPrintCfg_ForOurDrive:
	eMOVZX	ax, [di+DPT.bIdevarsOffset]
	xchg	bx, ax						; CS:BX now points to IDEVARS
	; Fall to .PushAddressingMode

;--------------------------------------------------------------------
; .PushAddressingMode
;	Parameters:
;		DS:DI:	Ptr to DPT
;		CS:BX:	Ptr to IDEVARS
;	Returns:
;		Nothing (jumps to next push below)
;	Corrupts registers:
;		AX, CX, DX
;--------------------------------------------------------------------
.PushAddressingMode:
	ACCESSDPT__GET_UNSHIFTED_TRANSLATE_MODE_TO_AXZF
	;;
	;; This multiply both shifts the addressing mode bits down to low order bits, and
	;; at the same time multiplies by the size of the string displacement.  The result is in AH,
	;; with AL clear, and so we exchange AL and AH after the multiply for the final result.
	;;
	mov		cx, g_szAddressingModes_Displacement << (8-TRANSLATEMODE_FIELD_POSITION)
	mul		cx
	xchg	al, ah		; AL = always zero after above multiplication
	add		ax, g_szAddressingModes
	push	ax
	; Fall to .PushBlockMode

;--------------------------------------------------------------------
; .PushBlockMode
;	Parameters:
;		DS:DI:	Ptr to DPT
;		CS:BX:	Ptr to IDEVARS
;	Returns:
;		Nothing (falls to next push below)
;	Corrupts registers:
;		AX
;--------------------------------------------------------------------
.PushBlockMode:
	mov		ax, 1
	test	BYTE [di+DPT.bFlagsHigh], FLGH_DPT_BLOCK_MODE_SUPPORTED
	jz		SHORT .PushBlockSizeFromAX
	mov		al, [di+DPT_ATA.bBlockSize]
.PushBlockSizeFromAX:
	push	ax

;--------------------------------------------------------------------
; PushBusType
;	Parameters:
;		DS:DI:	Ptr to DPT
;		CS:BX:	Ptr to IDEVARS
;	Returns:
;		Nothing (jumps to next push below)
;	Corrupts registers:
;		AX, DX
;--------------------------------------------------------------------
.PushBusType:
	mov		al,g_szBusTypeValues_Displacement
	mul		BYTE [cs:bx+IDEVARS.bDevice]

	shr		ax,1			; divide by 2 since IDEVARS.bDevice is multiplied by 2

	add		ax,g_szBusTypeValues
	push	ax

;--------------------------------------------------------------------
; PushIRQ
;	Parameters:
;		DS:DI:	Ptr to DPT
;		CS:BX:	Ptr to IDEVARS
;	Returns:
;		Nothing (falls to next push below)
;	Corrupts registers:
;		AX, DX
;--------------------------------------------------------------------
.PushIRQ:
	mov		al, [cs:bx+IDEVARS.bIRQ]
	cbw
	push	ax

;--------------------------------------------------------------------
; PushResetStatus
;	Parameters:
;		DS:DI:	Ptr to DPT
;		CS:BX:	Ptr to IDEVARS
;	Returns:
;		Nothing (falls to next push below)
;	Corrupts registers:
;		AX, BX, DX, ES
;--------------------------------------------------------------------
.PushResetStatus:
	mov		al, [di+DPT.bInitError]
	push	ax

;;; fall-out to BootMenuPrint_HardDiskRefreshInformation.