source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Inc/Controllers/XTCF.inc@ 590

Last change on this file since 590 was 589, checked in by Krister Nordvall, 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: 3.8 KB
Line 
1; Project name : XTIDE Universal BIOS
2; Description : Lo-tech XT-CF board specifications.
3;
4; More information at http://www.lo-tech.co.uk/XT-CF
5
6;
7; XTIDE Universal BIOS and Associated Tools
8; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
9;
10; This program is free software; you can redistribute it and/or modify
11; it under the terms of the GNU General Public License as published by
12; the Free Software Foundation; either version 2 of the License, or
13; (at your option) any later version.
14;
15; This program is distributed in the hope that it will be useful,
16; but WITHOUT ANY WARRANTY; without even the implied warranty of
17; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18; GNU General Public License for more details.
19; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
20;
21
22%ifndef XTCF_INC
23%define XTCF_INC
24
25; XT-CF requires that block must be less than 128 sectors (64 kiB) for DMA transfers.
26;
27; Note: XT-CFv3 DMA will not interfere with PC & PC/XT memory refresh,
28; since the XT-CFv3 detaches itself from the bus every 16 bytes transferred.
29;
30XTCF_DMA_MODE_MAX_BLOCK_SIZE EQU 64 ; Sectors
31
32; Possible base addresses. Note that all XT-CF IDE registers are SHL 1 compared
33; to standard IDE registers.
34XTCF_BASE_PORT_1 EQU 200h
35XTCF_BASE_PORT_2 EQU 240h
36XTCF_BASE_PORT_3 EQU 300h ; Default setting
37XTCF_BASE_PORT_4 EQU 340h
38
39
40; XT-CF Control Register (do not SHL 1 these!)
41; Note: XT-CFv3 control register is used *only* to raise DRQ. The register cannot be read.
42;
43XTCF_CONTROL_REGISTER EQU 1Eh
44
45; Transfer Mode Constants
46;
47; Available transfer modes depend on the controller. All XT-CF controllers
48; support 8-bit PIO, either with 8-bit or 16-bit instructions (i.e., data
49; can be fetched from the controller with REP INSW or REP INSB since A0 is
50; not decoded). However, errors in the implementation of the BIU on some
51; machines will prevent 16-bit instructions delivering data correctly.
52;
53; For XT-CFv3 adapter, DMA transfers are also supported via channel 3.
54;
55; XT-CFv3 cannot be distinguished by software, so user must decide and set
56; the mode via a call to Int 13h function 1Eh accordingly (see AH1Eh_XTCF.asm).
57;
58XTCF_8BIT_PIO_MODE EQU 0 ; XT-CF using 8-bit PIO mode
59XTCF_8BIT_PIO_MODE_WITH_BIU_OFFLOAD EQU 1 ; XT-CF using 8-bit PIO mode, but with 16-bit instructions
60XTCF_16BIT_PIO_MODE_WITH_BIU_OFFLOAD EQU 2 ; Lo-tech 8-bit IDE Adapter
61XTCF_DMA_MODE EQU 3 ; XT-CFv3 using DMA
62
63
64; Subcommands for AH=1Eh, Lo-tech XT-CF features.
65; Return values common for all subcommands:
66; AH: RET_HD_SUCCESS if drive is XT-CF
67; RET_HD_INVALID if drive is not XT-CF
68; CF: 0 if successful, 1 if error
69
70;--------------------------------------------------------------------
71; IS_THIS_DRIVE_XTCF
72; Parameters:
73; DL: Drive Number
74;--------------------------------------------------------------------
75IS_THIS_DRIVE_XTCF EQU 0
76
77;--------------------------------------------------------------------
78; SET_XTCF_TRANSFER_MODE
79; Parameters:
80; DH: Mode to select, i.e. XTCF_8BIT_PIO_MODE
81; Note there's no way to know if an XT-CF adapter
82; supports DMA, so the user should enable DMA
83; only if a DMA-enabled XT-CFv3 is fitted.
84; DL: Drive Number
85;--------------------------------------------------------------------
86SET_XTCF_TRANSFER_MODE EQU 1
87
88;--------------------------------------------------------------------
89; GET_XTCF_TRANSFER_MODE
90; Parameters:
91; DL: Drive Number
92; Returns:
93; DH: One of the mode values listed above,
94; i.e. XTCF_8BIT_PIO_MODE
95; DL: Block mode sectors per block configured
96;--------------------------------------------------------------------
97GET_XTCF_TRANSFER_MODE EQU 2
98
99
100%endif ; XTCF_INC
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