source: xtideuniversalbios/trunk/BIOS_Drive_Information_Tool/Src/Main.asm@ 512

; Project name  :   BIOS Drive Information Tool
; Description   :   BIOS Drive Information Tool reads and displays
;                   drive information from BIOS.

;
; 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
;       

; Include .inc files
%define INCLUDE_DISPLAY_LIBRARY
%define INCLUDE_KEYBOARD_LIBRARY
%include "AssemblyLibrary.inc"  ; Assembly Library. Must be included first!
%include "Version.inc"          ; From XTIDE Universal BIOS
%include "ATA_ID.inc"           ; From XTIDE Universal BIOS
%include "Int13h.inc"           ; From XTIDE Universal BIOS
%include "EBIOS.inc"            ; From XTIDE Universal BIOS
FLG_DRVNHEAD_DRV    EQU (1<<4)  ; Required by CustomDPT.inc
%include "Romvars.inc"          ; From XTIDE Universal BIOS
%include "CustomDPT.inc"        ; From XTIDE Universal BIOS


; Section containing code
SECTION .text

; Program first instruction.
ORG 100h                        ; Code starts at offset 100h (DOS .COM)
Start:
    jmp     StartBiosDriveInformationTool

; Include library and other sources
%include "AssemblyLibrary.asm"
%include "AtaGeometry.asm"      ; From XTIDE Universal BIOS
%include "Strings.asm"
%include "AtaInfo.asm"
%include "Bios.asm"
%include "Print.asm"


;--------------------------------------------------------------------
; Program start
;--------------------------------------------------------------------
ALIGN JUMP_ALIGN
StartBiosDriveInformationTool:
    CALL_DISPLAY_LIBRARY    InitializeDisplayContext
    call    Print_SetCharacterOutputToSTDOUT

    ; Display program name and version
    mov     si, g_szProgramName
    call    Print_NullTerminatedStringFromSI

    call    ReadAndDisplayAllHardDrives

    ; Exit to DOS
    mov     ax, 4C00h           ; Exit to DOS
    int     21h


;--------------------------------------------------------------------
; ReadAndDisplayAllHardDrives
;   Parameters:
;       Nothing
;   Returns:
;       Nothing
;   Corrupts registers:
;       All, except segments
;--------------------------------------------------------------------
ReadAndDisplayAllHardDrives:
    call    Bios_GetNumberOfHardDrivesToDX
    jc      SHORT .NoDrivesAvailable
    mov     cx, dx
    mov     dl, 80h             ; First hard drive
    jmp     SHORT .DisplayFirstDrive

.DisplayNextDriveFromDL:
    mov     si, g_szPressAnyKey
    call    Print_NullTerminatedStringFromSI
    call    Keyboard_GetKeystrokeToAXandWaitIfNecessary

.DisplayFirstDrive:
    ; Display drive number
    mov     si, g_szHeaderDrive
    call    Print_DriveNumberFromDLusingFormatStringInSI

    ; Display ATA information read from drive
    mov     si, g_szAtaInfoHeader
    call    Print_NullTerminatedStringFromSI
    call    AtaInfo_DisplayAtaInformationForDriveDL

    ; Display INT 13h AH=08h and AH=15h information
    mov     si, g_szOldInfoHeader
    call    Print_NullTerminatedStringFromSI
    call    DisplayOldInt13hInformationForDriveDL

    ; Display EBIOS information
    mov     si, g_szNewInfoHeader
    call    Print_NullTerminatedStringFromSI
    call    DisplayNewInt13hInformationFromDriveDL

    inc     dx
    loop    .DisplayNextDriveFromDL
.NoDrivesAvailable:
    ret


;--------------------------------------------------------------------
; DisplayOldInt13hInformationForDriveDL
;   Parameters:
;       DL:     Drive Number
;   Returns:
;       Nothing
;   Corrupts registers:
;       All, except CX and DX
;--------------------------------------------------------------------
DisplayOldInt13hInformationForDriveDL:
    push    cx
    push    dx

    ; Print L-CHS from AH=08h
    call    Bios_ReadOldInt13hParametersFromDriveDL
    call    Print_ErrorMessageFromAHifError
    jc      SHORT .SkipOldInt13hSinceError
    call    Print_CHSfromCXDXAX

    ; Print total sector count from AH=15h
    mov     si, g_szSectors
    call    Print_NullTerminatedStringFromSI
    pop     dx
    push    dx
    call    Bios_ReadOldInt13hCapacityFromDriveDL
    call    Print_ErrorMessageFromAHifError
    jc      SHORT .SkipOldInt13hSinceError

    xchg    ax, dx
    mov     dx, cx
    xor     bx, bx
    call    Print_TotalSectorsFromBXDXAX
.SkipOldInt13hSinceError:
    pop     dx
    pop     cx
    ret


;--------------------------------------------------------------------
; DisplayNewInt13hInformationFromDriveDL
;   Parameters:
;       DL:     Drive Number
;   Returns:
;       Nothing
;   Corrupts registers:
;       All, except CX and DX
;--------------------------------------------------------------------
DisplayNewInt13hInformationFromDriveDL:
    push    cx
    push    dx

    ; Display EBIOS version
    call    Bios_ReadEbiosVersionFromDriveDL
    call    Print_ErrorMessageFromAHifError
    jc      SHORT .SkipNewInt13hSinceError
    call    Print_EbiosVersionFromBXandExtensionsFromCX

    ; Display drive info from AH=48h
    call    Bios_ReadEbiosInfoFromDriveDLtoDSSI
    call    Print_ErrorMessageFromAHifError
    jc      SHORT .SkipNewInt13hSinceError

    ; Display CHS
    test    WORD [si+EDRIVE_INFO.wFlags], FLG_CHS_INFORMATION_IS_VALID
    jz      SHORT .SkipEbiosCHS
    mov     cx, [si+EDRIVE_INFO.dwCylinders]
    mov     dx, [si+EDRIVE_INFO.dwHeads]
    mov     ax, [si+EDRIVE_INFO.dwSectorsPerTrack]
    call    Print_CHSfromCXDXAX
.SkipEbiosCHS:

    ; Display total sector count
    push    si
    mov     si, g_szSectors
    call    Print_NullTerminatedStringFromSI
    pop     si
    mov     ax, [si+EDRIVE_INFO.qwTotalSectors]
    mov     dx, [si+EDRIVE_INFO.qwTotalSectors+2]
    mov     bx, [si+EDRIVE_INFO.qwTotalSectors+4]
    call    Print_TotalSectorsFromBXDXAX

    ; Display sector size
    mov     ax, [si+EDRIVE_INFO.wSectorSize]
    mov     si, g_szNewSectorSize
    call    Print_FormatStringFromSIwithParameterInAX

.SkipNewInt13hSinceError:
    pop     dx
    pop     cx
    ret