source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Inc/CustomDPT.inc @ 589

Last change on this file since 589 was 589, checked in by krille_n_, 8 years ago

Changes:

  • BIOS: Fixed a purely cosmetic bug from r542 where, in builds containing MODULE_EBIOS, the boot menu would display an incorrect drive size (0.4 kB with MODULE_STRINGS_COMPRESSED or 0.5 kB without) for old drives with no support for LBA.
  • Fixed a bug from r392 where Vision_DetectAndReturnIDinAXandPortInDXifControllerPresent would return the ID in AL instead of AH (if DANGEROUS_DETECTION had been defined).
  • Fixed a bug from r587 in AdvAtaInit.asm that would prevent detection of QDI Vision controllers.
  • Also changed how the QDI Vision IDs are defined (removed the need for shifting) to avoid confusion. This fixed a potential bug from r587 in AdvAtaInit.asm where some IDs were not being shifted.
  • Fixed a bug in PDC20x30.asm from r587 where GetPdcIDtoAX would not return with the IDE base port in DX so DisablePdcProgrammingMode would fail.
  • Made some changes to ModuleDependency.inc and other files so that MODULE_ADVANCED_ATA now requires USE_386. Consequently it is no longer included in the regular AT-builds, only in the 386_8k-build.
  • Moved the UNROLL_SECTORS_IN_CX_TO_xWORDS macros from IDE_8bit.inc to IdeIO.inc which means it's now possible to build a BIOS without MODULE_8BIT_IDE.
  • XTIDECFG: Added a minimum DOS version check (since it needs DOS version 2+) to allow the program to quit gracefully in the unlikely scenario where someone tries to run it under DOS version 1.
  • Made some changes to Drive.asm to improve drive enumeration. The old method using GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE worked well in Windows XP but not in Windows 98 SE (in Windows or in DOS mode). The two problems were; 1) The function call would access the drives which on single floppy drive systems would cause Windows to swap between A: and B: (throwing a blue screen asking the user to insert a disk etc). 2) Only floppy drives and FAT16 drives would be available in the list of drives, no FAT32/optical/network drives.
  • Improved code in IdeControllerMenu.asm so that the default port addresses for all IDE interfaces are now restored when (re-)selecting the (same) type of IDE device.
  • Also made it impossible to select a device type unless the required module is included in the loaded BIOS.
  • The version check done when loading a BIOS now uses the FLASH_SIGNATURE definition from Version.inc. Any changes affecting RomVars now only requires updating that definition. This means that changes to RomVars must be implemented in both the BIOS and XTIDECFG before being committed to the repository.
  • Added a compatibility fix for 3Com 3C503 cards to the ROM checksumming code in Buffers.asm (Buffers_GenerateChecksum).
  • SerDrive: Made some minor changes to file names and paths to improve compatibility with case sensitive environments.
  • BIOSDRVS: Made a minor size optimization which as a side effect also makes it compatible with all DOS versions including DOS version 1.
  • Library: Renamed the WAIT_RETRACE_IF_NECESSARY_THEN macro to CALL_WAIT_FOR_RETRACE_IF_NECESSARY_THEN and made a tail-call-optimized version of it (JMP_WAIT_FOR_RETRACE_IF_NECESSARY_THEN).
  • A speed optimization to the eRCL_IM macro for 386 and higher. This change breaks emulation in the sense that the macro will fail when given a memory operand as the first parameter.
  • Other minor optimizations and fixes.
File size: 5.6 KB
Line 
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
25struc 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
51endstruc
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%endif
75%ifdef MODULE_ADVANCED_ATA
76    FLGH_DPT_IORDY                      EQU (1<<7)              ; Bit 7, Controller and Drive supports IORDY
77%endif
78
79    ; Serial device only
80%ifdef MODULE_SERIAL_FLOPPY
81    FLGH_DPT_SERIAL_FLOPPY                      EQU (1<<4)      ; Bit 4, Drive is a serial floppy drive
82    FLGH_DPT_SERIAL_FLOPPY_TYPE_FIELD_POSITION  EQU 5           ; Bits 7...5, Serial floppy drive type
83%endif
84
85
86    ; Flags for DPT.bInitError
87    FLG_INITERROR_FAILED_TO_SELECT_DRIVE                EQU (1<<0)
88    FLG_INITERROR_FAILED_TO_INITIALIZE_CHS_PARAMETERS   EQU (1<<1)
89    FLG_INITERROR_FAILED_TO_SET_WRITE_CACHE             EQU (1<<2)
90    FLG_INITERROR_FAILED_TO_RECALIBRATE_DRIVE           EQU (1<<3)
91    FLG_INITERROR_FAILED_TO_SET_BLOCK_MODE              EQU (1<<4)
92    FLG_INITERROR_FAILED_TO_SET_PIO_MODE                EQU (1<<5)
93    FLG_INITERROR_FAILED_TO_INITIALIZE_STANDBY_TIMER    EQU (1<<6)
94    FLG_INITERROR_FAILED_TO_SET_XTCF_MODE               EQU (1<<7)
95    FLG_INITERROR_FAILED_TO_SET_8BIT_MODE               EQU FLG_INITERROR_FAILED_TO_SET_XTCF_MODE
96
97
98
99; DPT for ATA devices
100struc DPT_ATA
101    .dpt                    resb    DPT_size
102    .bDevice                resb    1   ; Device Type from IDEVARS (overrided when 32-bit controller detected or XT-CF mode is changed)
103    .bBlockSize             resb    1   ; Current block size in sectors (do not set to zero!)
104endstruc
105
106
107
108; Additional variables needed to initialize and reset Advanced IDE Controllers.
109; EBDA must be reserved for DPTs when using these!
110%ifdef MODULE_ADVANCED_ATA
111struc DPT_ADVANCED_ATA
112    .dpt_ata                resb    DPT_ATA_size
113    .wControllerID          resb    2   ; Controller specific ID WORD (from Advanced Controller detection)
114    .wControllerBasePort    resb    2   ; Advanced Controller port (not IDE port)
115    .wMinPioCycleTime       resb    2   ; Minimum PIO Cycle Time in ns
116    .bPioMode               resb    1   ; Best supported PIO mode
117                            alignb  2
118endstruc
119%endif
120
121
122; DPT for Serial devices
123%ifdef MODULE_SERIAL
124struc DPT_SERIAL
125    .dpt                    resb    DPT_size
126    .wSerialPortAndBaud:
127    .bSerialPort            resb    1   ; Serial connection I/O port address, divided by 4
128    .bSerialBaud            resb    1   ; Serial connection baud rate divisor
129endstruc
130
131; On performance critical situations we compare DPT_ATA.bDevice without checking FLGH_DPT_SERIAL_DEVICE
132; first! DPT_ATA.bDevice uses small values so there will be no problems.
133%ifndef CHECK_FOR_UNUSED_ENTRYPOINTS
134    %if DPT_SERIAL.bSerialPort <> DPT_ATA.bDevice
135        %error "DPT_ATA.bDevice and DPT_SERIAL.bSerialPort must be in same offsets!"
136    %endif
137%endif
138%endif ; MODULE_SERIAL
139
140
141; This is the common size for all DPTs. All DPTs must be equal size.
142%ifdef MODULE_ADVANCED_ATA
143    LARGEST_DPT_SIZE            EQU     DPT_ADVANCED_ATA_size
144%else
145    LARGEST_DPT_SIZE            EQU     DPT_ATA_size
146%endif
147
148
149    ; Number of Sectors per Track is fixed to 63 for LBA assist calculation.
150    ; 1024 cylinders, 256 heads, 63 sectors = 8.4 GB limit (but DOS does not support more than 255 heads)
151    MAX_LCHS_CYLINDERS          EQU     1024
152    LBA_ASSIST_SPT              EQU     63
153
154
155%endif ; CUSTOMDPT_INC
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