| 1 | ; Project name : XTIDE Universal BIOS
|
|---|
| 2 | ; Description : Equates used in Enhanced INT 13h functions (EBIOS).
|
|---|
| 3 |
|
|---|
| 4 | ;
|
|---|
| 5 | ; XTIDE Universal BIOS and Associated Tools
|
|---|
| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
|
|---|
| 7 | ;
|
|---|
| 8 | ; This program is free software; you can redistribute it and/or modify
|
|---|
| 9 | ; it under the terms of the GNU General Public License as published by
|
|---|
| 10 | ; the Free Software Foundation; either version 2 of the License, or
|
|---|
| 11 | ; (at your option) any later version.
|
|---|
| 12 | ;
|
|---|
| 13 | ; This program is distributed in the hope that it will be useful,
|
|---|
| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 16 | ; GNU General Public License for more details.
|
|---|
| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
|
|---|
| 18 | ;
|
|---|
| 19 |
|
|---|
| 20 | %ifndef EBIOS_INC
|
|---|
| 21 | %define EBIOS_INC
|
|---|
| 22 |
|
|---|
| 23 | ; EBIOS specification returned by INT 13h, AH=41h
|
|---|
| 24 |
|
|---|
| 25 | EDD_V1_1 EQU 21h ; 21h = EDD version 1.1
|
|---|
| 26 | EBIOS_VERSION EQU EDD_V1_1
|
|---|
| 27 |
|
|---|
| 28 | ; Support bits returned by INT 13h, AH=41h
|
|---|
| 29 | ENHANCED_DRIVE_ACCESS_SUPPORT EQU (1<<0) ; 41h, 42h, 43h 44h, 47h and 48h are available
|
|---|
| 30 | DRIVE_LOCKING_AND_EJECTING_SUPPORT EQU (1<<1) ; 41h, 45h, 46h, 48h, 49h are available and INT 15h, AH=52h
|
|---|
| 31 | ENHANCED_DISK_DRIVE_SUPPORT EQU (1<<2) ; 41h, 48h, 4Eh are available (EDD)
|
|---|
| 32 |
|
|---|
| 33 |
|
|---|
| 34 | ; Extended Drive Information returned by AH=48h
|
|---|
| 35 | struc EDRIVE_INFO
|
|---|
| 36 | .wSize resb 2 ; 0, Size of this buffer, at least 26
|
|---|
| 37 | .wFlags resb 2 ; 2, Information flags
|
|---|
| 38 | .dwCylinders resb 4 ; 4, Total number of addressable cylinders
|
|---|
| 39 | .dwHeads resb 4 ; 8, Total number of addressable heads
|
|---|
| 40 | .dwSectorsPerTrack resb 4 ; 12, Number of sectors per track
|
|---|
| 41 | .qwTotalSectors resb 8 ; 16, Total number of addressable sectors
|
|---|
| 42 | .wSectorSize resb 2 ; 24, Number of bytes per sector
|
|---|
| 43 | .fpDPTE resb 4 ; 26, Optional pointer to Device Parameter Table Extension
|
|---|
| 44 | endstruc
|
|---|
| 45 |
|
|---|
| 46 | MINIMUM_EDRIVEINFO_SIZE EQU 26 ; 26 bytes does not include EDD pointer
|
|---|
| 47 | EDRIVEINFO_SIZE_WITH_DPTE EQU EDRIVE_INFO_size
|
|---|
| 48 |
|
|---|
| 49 | ; Flags for EDRIVE_INFO.wFlags
|
|---|
| 50 | FLG_DMA_BOUNDARY_ERRORS_HANDLED_BY_BIOS EQU (1<<0)
|
|---|
| 51 | FLG_CHS_INFORMATION_IS_VALID EQU (1<<1)
|
|---|
| 52 | FLG_REMOVABLE_DRIVE EQU (1<<2)
|
|---|
| 53 | FLG_WRITE_WITH_VERIFY_SUPPORTED EQU (1<<3)
|
|---|
| 54 | FLG_CHANGE_LINE_SUPPORT EQU (1<<4) ; Removable media only
|
|---|
| 55 | FLG_LOCKABLE EQU (1<<5) ; Removable media only
|
|---|
| 56 | FLG_NO_MEDIA_PRESENT_AND_CHS_SET_TO_MAX EQU (1<<6) ; Removable media only
|
|---|
| 57 |
|
|---|
| 58 |
|
|---|
| 59 | ; Device Parameter Table Extension
|
|---|
| 60 | struc DPTE
|
|---|
| 61 | .wBasePort resb 2 ; 0, Command Block Base Port Address
|
|---|
| 62 | .wControlBlockPort resb 2 ; 2, Control Block Base Port Address
|
|---|
| 63 | .bDrvnhead resb 1 ; 4, Drive and Head Select Register upper nibble
|
|---|
| 64 | .bBiosVendor resb 1 ; 5, BIOS Vendor Specific
|
|---|
| 65 | .bIRQ resb 1 ; 6, IRQ for this device
|
|---|
| 66 | .bBlockSize resb 1 ; 7, Current block size in sectors
|
|---|
| 67 | .bDmaChannelAndType resb 1 ; 8, DMA information
|
|---|
| 68 | .bPioMode resb 1 ; 9, PIO mode
|
|---|
| 69 | .wFlags resb 2 ; 10, BIOS selected hardware specific option flags
|
|---|
| 70 | .wReserved resb 2 ; 12, Reserved. Must be zero.
|
|---|
| 71 | .bRevision resb 1 ; 14, Revision level of this table (11h)
|
|---|
| 72 | .bChecksum resb 1 ; 15, Checksum, 2's complement of the sum of bytes 0-14
|
|---|
| 73 | endstruc
|
|---|
| 74 |
|
|---|
| 75 | ; Flags for DPTE.wFlags
|
|---|
| 76 | FLG_FAST_PIO_ENABLED EQU (1<<0) ; Set if using PIO mode 1 or above (DPTE.bPioMode is valid when set)
|
|---|
| 77 | FLG_DMA_ENABLED EQU (1<<1) ; Set if DMA enabled (DPTE.bDmaChannelAndType is valid when set)
|
|---|
| 78 | FLG_BLOCK_MODE_ENABLED EQU (1<<2) ; Set if Block Mode transfers are enabled (DPTE.bBlockSize is valid when set)
|
|---|
| 79 | FLG_CHS_TRANSLATION_ENABLED EQU (1<<3) ; Set for drives with more than 1024 cylinders
|
|---|
| 80 | FLG_LBA_TRANSLATION_ENABLED EQU (1<<4) ; Set when LBA addresses from DAP are passed directly to the drive
|
|---|
| 81 | FLG_REMOVABLE_MEDIA EQU (1<<5)
|
|---|
| 82 | FLG_ATAPI_DEVICE EQU (1<<6)
|
|---|
| 83 | FLG_32BIT_XFER_MODE EQU (1<<7) ; Set when using 32-bit data transfers
|
|---|
| 84 | FLG_ATAPI_USES_IRQ EQU (1<<8) ; ATAPI Device uses IRQ for data transfers
|
|---|
| 85 | ; L-CHS translation type for old INT 13h (when FLG_CHS_TRANSLATION_ENABLED is set)
|
|---|
| 86 | MASK_CHS_TRANSLATION_TYPE EQU (3<<TRANSLATION_TYPE_FIELD_POSITION)
|
|---|
| 87 | TRANSLATION_TYPE_FIELD_POSITION EQU 9
|
|---|
| 88 | BIT_SHIFT_TRANSLATION EQU 0 ; LARGE
|
|---|
| 89 | LBA_ASSISTED_TRANSLATION EQU 1 ; Assisted LBA
|
|---|
| 90 | ; 2 = reserved
|
|---|
| 91 | VENDOR_SPECIFIC_TRANSLATION EQU 3
|
|---|
| 92 |
|
|---|
| 93 |
|
|---|
| 94 | DPTE_REVISION EQU 11h
|
|---|
| 95 |
|
|---|
| 96 |
|
|---|
| 97 | ; Disk Address Packet for read, write and verify functions
|
|---|
| 98 | struc DAP
|
|---|
| 99 | .bSize resb 1 ; 0, Size of this packet in bytes
|
|---|
| 100 | .bReservedAt1 resb 1 ; 1, Currently unused, must be zero
|
|---|
| 101 | .wSectorCount resb 2 ; 2, Number of sectors to process (0...127)
|
|---|
| 102 | .dwMemoryAddress:
|
|---|
| 103 | .wOffset resb 2 ; 4, Memory offset for transfer
|
|---|
| 104 | .wSegment resb 2 ; 6, Memory segment for transfer
|
|---|
| 105 | .qwLBA resb 8 ; 8, Starting sector for transfer
|
|---|
| 106 | endstruc
|
|---|
| 107 |
|
|---|
| 108 | MINIMUM_DAP_SIZE EQU 16
|
|---|
| 109 |
|
|---|
| 110 |
|
|---|
| 111 | %endif ; EBIOS_INC
|
|---|
