source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Inc/CustomDPT.inc

Last change on this file was 616, checked in by Tomi Tilli, 3 years ago
  • Added check for APM
File size: 5.7 KB
RevLine 
[99]1; Project name : XTIDE Universal BIOS
[3]2; Description : Defines for DPT structs containing custom
3; Disk Parameter Table used by this BIOS.
[376]4
5;
[399]6; XTIDE Universal BIOS and Associated Tools
[526]7; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
[376]8;
9; This program is free software; you can redistribute it and/or modify
10; it under the terms of the GNU General Public License as published by
11; the Free Software Foundation; either version 2 of the License, or
12; (at your option) any later version.
[399]13;
[376]14; This program is distributed in the hope that it will be useful,
15; but WITHOUT ANY WARRANTY; without even the implied warranty of
16; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
[399]17; GNU General Public License for more details.
[376]18; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
19;
20
[3]21%ifndef CUSTOMDPT_INC
22%define CUSTOMDPT_INC
23
[150]24; Base DPT for all device types
[472]25struc DPT
[473]26 ; General Disk Parameter Table related
[158]27 .wFlags:
[399]28 .bFlagsLow resb 1
29 .bFlagsHigh resb 1
30 .bIdevarsOffset resb 1 ; Offset to IDEVARS for this drive
[422]31 .bInitError resb 1 ; Flags for AH=09h initialization errors
[536]32 .wBasePort resb 2 ; Segment for JR-IDE/ISA and ADP50L
[3]33
[473]34 ; CHS variables
[421]35 .wLchsCylinders resb 2 ; (1...1027, yes 1027)
36 .wLchsHeadsAndSectors:
37 .bLchsHeads resb 1 ; (1...255)
38 .bLchsSectorsPerTrack resb 1 ; (1...63)
[542]39 .wPchsHeadsAndSectors:
[422]40 .bPchsHeads resb 1 ; (1...16)
[542]41 .bPchsSectorsPerTrack resb 1 ; (1...63)
[550]42%ifdef MODULE_COMPATIBLE_TABLES OR MODULE_EBIOS
43 .wPchsCylinders resb 2
44%endif
[238]45
[550]46 ; Total LBA sector count
[421]47%ifdef MODULE_EBIOS
48 .twLbaSectors resb 6 ; 48-bit sector count for LBA addressing
49%endif
[491]50 alignb 2 ; WORD alignment for DPT_SERIAL or DPT_ATA
[150]51endstruc
[3]52
[399]53 ; Bit definitions for DPT.bFlagsLow
[421]54 MASKL_DPT_CHS_SHIFT_COUNT EQU (3<<0) ; Bits 0...1, P-CHS to L-CHS bit shift count (0...3)
[422]55 MASKL_DPT_TRANSLATEMODE EQU MASK_DRVPARAMS_TRANSLATEMODE ; Bits 2...3, NORMAL, LARGE or Assisted LBA addressing mode
56 FLGL_DPT_ASSISTED_LBA EQU (1<<(TRANSLATEMODE_FIELD_POSITION+1))
[421]57 FLGL_DPT_SLAVE EQU FLG_DRVNHEAD_DRV ; Bit 4, Drive is a Slave Drive
[411]58%ifdef MODULE_IRQ
[421]59 FLGL_DPT_ENABLE_IRQ EQU (1<<5) ; Bit 5, Enable IRQ
[411]60%endif
[542]61 FLGL_DPT_LBA EQU FLG_DRVNHEAD_LBA ; Bit 6, Drive supports LBA and so EBIOS functions can be supported
[421]62%ifdef MODULE_EBIOS
[567]63 FLGL_DPT_LBA48 EQU (1<<7) ; Bit 7, Drive supports 48-bit LBA (must be bit 7!)
[421]64%endif
[3]65
[421]66
[399]67 ; Bit definitions for DPT.bFlagsHigh
[567]68 FLGH_DPT_USE_BLOCK_MODE_COMMANDS EQU (1<<1) ; Bit 1, Use block transfer commands (must be bit 1!)
[411]69%ifdef MODULE_SERIAL
[567]70 FLGH_DPT_SERIAL_DEVICE EQU (1<<2) ; Bit 2, Serial Port Device
[411]71%endif
[567]72%ifdef MODULE_POWER_MANAGEMENT
73 FLGH_DPT_POWER_MANAGEMENT_SUPPORTED EQU (1<<3) ; Bit 3, Drive supports power management (must be bit 3!)
[616]74 FLGH_DPT_APM_SUPPORTED EQU (1<<4) ; Bit 4, Drive supports advanced power management (must be bit 4!)
[411]75%endif
76%ifdef MODULE_ADVANCED_ATA
[567]77 FLGH_DPT_IORDY EQU (1<<7) ; Bit 7, Controller and Drive supports IORDY
[411]78%endif
[363]79
[399]80 ; Serial device only
[411]81%ifdef MODULE_SERIAL_FLOPPY
[567]82 FLGH_DPT_SERIAL_FLOPPY EQU (1<<4) ; Bit 4, Drive is a serial floppy drive
83 FLGH_DPT_SERIAL_FLOPPY_TYPE_FIELD_POSITION EQU 5 ; Bits 7...5, Serial floppy drive type
[411]84%endif
[258]85
[3]86
[589]87 ; Flags for DPT.bInitError
[422]88 FLG_INITERROR_FAILED_TO_SELECT_DRIVE EQU (1<<0)
89 FLG_INITERROR_FAILED_TO_INITIALIZE_CHS_PARAMETERS EQU (1<<1)
90 FLG_INITERROR_FAILED_TO_SET_WRITE_CACHE EQU (1<<2)
91 FLG_INITERROR_FAILED_TO_RECALIBRATE_DRIVE EQU (1<<3)
92 FLG_INITERROR_FAILED_TO_SET_BLOCK_MODE EQU (1<<4)
93 FLG_INITERROR_FAILED_TO_SET_PIO_MODE EQU (1<<5)
94 FLG_INITERROR_FAILED_TO_INITIALIZE_STANDBY_TIMER EQU (1<<6)
[473]95 FLG_INITERROR_FAILED_TO_SET_XTCF_MODE EQU (1<<7)
[480]96 FLG_INITERROR_FAILED_TO_SET_8BIT_MODE EQU FLG_INITERROR_FAILED_TO_SET_XTCF_MODE
[363]97
[422]98
99
[363]100; DPT for ATA devices
[473]101struc DPT_ATA
[399]102 .dpt resb DPT_size
[584]103 .bDevice resb 1 ; Device Type from IDEVARS (overrided when 32-bit controller detected or XT-CF mode is changed)
[399]104 .bBlockSize resb 1 ; Current block size in sectors (do not set to zero!)
[363]105endstruc
106
107
[421]108
[364]109; Additional variables needed to initialize and reset Advanced IDE Controllers.
110; EBDA must be reserved for DPTs when using these!
[363]111%ifdef MODULE_ADVANCED_ATA
[473]112struc DPT_ADVANCED_ATA
[363]113 .dpt_ata resb DPT_ATA_size
[364]114 .wControllerID resb 2 ; Controller specific ID WORD (from Advanced Controller detection)
[363]115 .wControllerBasePort resb 2 ; Advanced Controller port (not IDE port)
[364]116 .wMinPioCycleTime resb 2 ; Minimum PIO Cycle Time in ns
117 .bPioMode resb 1 ; Best supported PIO mode
[472]118 alignb 2
[363]119endstruc
[411]120%endif
[363]121
[400]122
[364]123; DPT for Serial devices
[363]124%ifdef MODULE_SERIAL
[473]125struc DPT_SERIAL
[399]126 .dpt resb DPT_size
[363]127 .wSerialPortAndBaud:
[399]128 .bSerialPort resb 1 ; Serial connection I/O port address, divided by 4
129 .bSerialBaud resb 1 ; Serial connection baud rate divisor
[363]130endstruc
[474]131
132; On performance critical situations we compare DPT_ATA.bDevice without checking FLGH_DPT_SERIAL_DEVICE
133; first! DPT_ATA.bDevice uses small values so there will be no problems.
[488]134%ifndef CHECK_FOR_UNUSED_ENTRYPOINTS
[491]135 %if DPT_SERIAL.bSerialPort <> DPT_ATA.bDevice
136 %error "DPT_ATA.bDevice and DPT_SERIAL.bSerialPort must be in same offsets!"
137 %endif
[363]138%endif
[491]139%endif ; MODULE_SERIAL
[363]140
141
142; This is the common size for all DPTs. All DPTs must be equal size.
[364]143%ifdef MODULE_ADVANCED_ATA
[399]144 LARGEST_DPT_SIZE EQU DPT_ADVANCED_ATA_size
[364]145%else
[399]146 LARGEST_DPT_SIZE EQU DPT_ATA_size
[364]147%endif
[363]148
149
[399]150 ; Number of Sectors per Track is fixed to 63 for LBA assist calculation.
151 ; 1024 cylinders, 256 heads, 63 sectors = 8.4 GB limit (but DOS does not support more than 255 heads)
152 MAX_LCHS_CYLINDERS EQU 1024
153 LBA_ASSIST_SPT EQU 63
[3]154
[173]155
[3]156%endif ; CUSTOMDPT_INC
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