| 1 | ; Project name : XTIDE Universal BIOS
|
|---|
| 2 | ; Description : Defines for DPT structs containing custom
|
|---|
| 3 | ; Disk Parameter Table used by this BIOS.
|
|---|
| 4 |
|
|---|
| 5 | ;
|
|---|
| 6 | ; XTIDE Universal BIOS and Associated Tools
|
|---|
| 7 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
|
|---|
| 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.
|
|---|
| 13 | ;
|
|---|
| 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
|
|---|
| 17 | ; GNU General Public License for more details.
|
|---|
| 18 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
|
|---|
| 19 | ;
|
|---|
| 20 |
|
|---|
| 21 | %ifndef CUSTOMDPT_INC
|
|---|
| 22 | %define CUSTOMDPT_INC
|
|---|
| 23 |
|
|---|
| 24 | ; Base DPT for all device types
|
|---|
| 25 | struc DPT
|
|---|
| 26 | ; General Disk Parameter Table related
|
|---|
| 27 | .wFlags:
|
|---|
| 28 | .bFlagsLow resb 1
|
|---|
| 29 | .bFlagsHigh resb 1
|
|---|
| 30 | .bIdevarsOffset resb 1 ; Offset to IDEVARS for this drive
|
|---|
| 31 | .bInitError resb 1 ; Flags for AH=09h initialization errors
|
|---|
| 32 | .wBasePort resb 2 ; Segment for JR-IDE/ISA and ADP50L
|
|---|
| 33 |
|
|---|
| 34 | ; CHS variables
|
|---|
| 35 | .wLchsCylinders resb 2 ; (1...1027, yes 1027)
|
|---|
| 36 | .wLchsHeadsAndSectors:
|
|---|
| 37 | .bLchsHeads resb 1 ; (1...255)
|
|---|
| 38 | .bLchsSectorsPerTrack resb 1 ; (1...63)
|
|---|
| 39 | .wPchsHeadsAndSectors:
|
|---|
| 40 | .bPchsHeads resb 1 ; (1...16)
|
|---|
| 41 | .bPchsSectorsPerTrack resb 1 ; (1...63)
|
|---|
| 42 | %ifdef MODULE_COMPATIBLE_TABLES OR MODULE_EBIOS
|
|---|
| 43 | .wPchsCylinders resb 2
|
|---|
| 44 | %endif
|
|---|
| 45 |
|
|---|
| 46 | ; Total LBA sector count
|
|---|
| 47 | %ifdef MODULE_EBIOS
|
|---|
| 48 | .twLbaSectors resb 6 ; 48-bit sector count for LBA addressing
|
|---|
| 49 | %endif
|
|---|
| 50 | alignb 2 ; WORD alignment for DPT_SERIAL or DPT_ATA
|
|---|
| 51 | endstruc
|
|---|
| 52 |
|
|---|
| 53 | ; Bit definitions for DPT.bFlagsLow
|
|---|
| 54 | MASKL_DPT_CHS_SHIFT_COUNT EQU (3<<0) ; Bits 0...1, P-CHS to L-CHS bit shift count (0...3)
|
|---|
| 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))
|
|---|
| 57 | FLGL_DPT_SLAVE EQU FLG_DRVNHEAD_DRV ; Bit 4, Drive is a Slave Drive
|
|---|
| 58 | %ifdef MODULE_IRQ
|
|---|
| 59 | FLGL_DPT_ENABLE_IRQ EQU (1<<5) ; Bit 5, Enable IRQ
|
|---|
| 60 | %endif
|
|---|
| 61 | FLGL_DPT_LBA EQU FLG_DRVNHEAD_LBA ; Bit 6, Drive supports LBA and so EBIOS functions can be supported
|
|---|
| 62 | %ifdef MODULE_EBIOS
|
|---|
| 63 | FLGL_DPT_LBA48 EQU (1<<7) ; Bit 7, Drive supports 48-bit LBA (must be bit 7!)
|
|---|
| 64 | %endif
|
|---|
| 65 |
|
|---|
| 66 |
|
|---|
| 67 | ; Bit definitions for DPT.bFlagsHigh
|
|---|
| 68 | FLGH_DPT_USE_BLOCK_MODE_COMMANDS EQU (1<<1) ; Bit 1, Use block transfer commands (must be bit 1!)
|
|---|
| 69 | %ifdef MODULE_SERIAL
|
|---|
| 70 | FLGH_DPT_SERIAL_DEVICE EQU (1<<2) ; Bit 2, Serial Port Device
|
|---|
| 71 | %endif
|
|---|
| 72 | %ifdef MODULE_POWER_MANAGEMENT
|
|---|
| 73 | FLGH_DPT_POWER_MANAGEMENT_SUPPORTED EQU (1<<3) ; Bit 3, Drive supports power management (must be bit 3!)
|
|---|
| 74 | FLGH_DPT_APM_SUPPORTED EQU (1<<4) ; Bit 4, Drive supports advanced power management (must be bit 4!)
|
|---|
| 75 | %endif
|
|---|
| 76 | %ifdef MODULE_ADVANCED_ATA
|
|---|
| 77 | FLGH_DPT_IORDY EQU (1<<7) ; Bit 7, Controller and Drive supports IORDY
|
|---|
| 78 | %endif
|
|---|
| 79 |
|
|---|
| 80 | ; Serial device only
|
|---|
| 81 | %ifdef MODULE_SERIAL_FLOPPY
|
|---|
| 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
|
|---|
| 84 | %endif
|
|---|
| 85 |
|
|---|
| 86 |
|
|---|
| 87 | ; Flags for DPT.bInitError
|
|---|
| 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)
|
|---|
| 95 | FLG_INITERROR_FAILED_TO_SET_XTCF_MODE EQU (1<<7)
|
|---|
| 96 | FLG_INITERROR_FAILED_TO_SET_8BIT_MODE EQU FLG_INITERROR_FAILED_TO_SET_XTCF_MODE
|
|---|
| 97 |
|
|---|
| 98 |
|
|---|
| 99 |
|
|---|
| 100 | ; DPT for ATA devices
|
|---|
| 101 | struc DPT_ATA
|
|---|
| 102 | .dpt resb DPT_size
|
|---|
| 103 | .bDevice resb 1 ; Device Type from IDEVARS (overrided when 32-bit controller detected or XT-CF mode is changed)
|
|---|
| 104 | .bBlockSize resb 1 ; Current block size in sectors (do not set to zero!)
|
|---|
| 105 | endstruc
|
|---|
| 106 |
|
|---|
| 107 |
|
|---|
| 108 |
|
|---|
| 109 | ; Additional variables needed to initialize and reset Advanced IDE Controllers.
|
|---|
| 110 | ; EBDA must be reserved for DPTs when using these!
|
|---|
| 111 | %ifdef MODULE_ADVANCED_ATA
|
|---|
| 112 | struc DPT_ADVANCED_ATA
|
|---|
| 113 | .dpt_ata resb DPT_ATA_size
|
|---|
| 114 | .wControllerID resb 2 ; Controller specific ID WORD (from Advanced Controller detection)
|
|---|
| 115 | .wControllerBasePort resb 2 ; Advanced Controller port (not IDE port)
|
|---|
| 116 | .wMinPioCycleTime resb 2 ; Minimum PIO Cycle Time in ns
|
|---|
| 117 | .bPioMode resb 1 ; Best supported PIO mode
|
|---|
| 118 | alignb 2
|
|---|
| 119 | endstruc
|
|---|
| 120 | %endif
|
|---|
| 121 |
|
|---|
| 122 |
|
|---|
| 123 | ; DPT for Serial devices
|
|---|
| 124 | %ifdef MODULE_SERIAL
|
|---|
| 125 | struc DPT_SERIAL
|
|---|
| 126 | .dpt resb DPT_size
|
|---|
| 127 | .wSerialPortAndBaud:
|
|---|
| 128 | .bSerialPort resb 1 ; Serial connection I/O port address, divided by 4
|
|---|
| 129 | .bSerialBaud resb 1 ; Serial connection baud rate divisor
|
|---|
| 130 | endstruc
|
|---|
| 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.
|
|---|
| 134 | %ifndef CHECK_FOR_UNUSED_ENTRYPOINTS
|
|---|
| 135 | %if DPT_SERIAL.bSerialPort <> DPT_ATA.bDevice
|
|---|
| 136 | %error "DPT_ATA.bDevice and DPT_SERIAL.bSerialPort must be in same offsets!"
|
|---|
| 137 | %endif
|
|---|
| 138 | %endif
|
|---|
| 139 | %endif ; MODULE_SERIAL
|
|---|
| 140 |
|
|---|
| 141 |
|
|---|
| 142 | ; This is the common size for all DPTs. All DPTs must be equal size.
|
|---|
| 143 | %ifdef MODULE_ADVANCED_ATA
|
|---|
| 144 | LARGEST_DPT_SIZE EQU DPT_ADVANCED_ATA_size
|
|---|
| 145 | %else
|
|---|
| 146 | LARGEST_DPT_SIZE EQU DPT_ATA_size
|
|---|
| 147 | %endif
|
|---|
| 148 |
|
|---|
| 149 |
|
|---|
| 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
|
|---|
| 154 |
|
|---|
| 155 |
|
|---|
| 156 | %endif ; CUSTOMDPT_INC
|
|---|
