source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Inc/IdeIO.inc@ 591

Last change on this file since 591 was 589, checked in by Krister Nordvall, 9 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: 3.6 KB
Line 
1; Project name : XTIDE Universal BIOS
2; Description : Macros for normal I/O mapped ATA controllers.
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 IDE_IO_INC
21%define IDE_IO_INC
22
23;--------------------------------------------------------------------
24; OUTPUT_AL_TO_IDE_REGISTER
25; OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER
26; Parameters:
27; AL: Byte to output
28; %1: IDE Register (OUTPUT_AL_TO_IDE_REGISTER)
29; IDE Control Block Register (OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER)
30; DS:DI: Ptr to DPT (in RAMVARS segment)
31; Returns:
32; Nothing
33; Corrupts registers:
34; BX, DX
35;--------------------------------------------------------------------
36%macro OUTPUT_AL_TO_IDE_REGISTER 1
37%ifndef MODULE_8BIT_IDE ; Standard IDE controllers only
38
39 %ifnidni %1, dx
40 mov dx, %1
41 %endif
42 add dx, [di+DPT.wBasePort]
43 out dx, al
44
45%else ; Register translations required
46
47 %ifnidni %1, dl
48 mov dl, %1
49 %endif
50 call IdeIO_OutputALtoIdeRegisterInDL
51
52%endif
53%endmacro
54
55
56%macro OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER 1
57%ifndef MODULE_8BIT_IDE ; Standard IDE controllers only
58
59 %ifnidni %1, dx
60 mov dx, %1
61 %endif
62 eMOVZX bx, BYTE [di+DPT.bIdevarsOffset]
63 add dx, [cs:bx+IDEVARS.wControlBlockPort]
64 out dx, al
65
66%else ; Register translations required
67
68 %ifnidni %1, dl
69 mov dl, %1
70 %endif
71 call IdeIO_OutputALtoIdeControlBlockRegisterInDL
72
73%endif
74%endmacro
75
76
77;--------------------------------------------------------------------
78; INPUT_TO_AL_FROM_IDE_REGISTER
79; Parameters:
80; %1: IDE Register
81; DS:DI: Ptr to DPT (in RAMVARS segment)
82; Returns:
83; AL: Inputted byte
84; Corrupts registers:
85; BX, DX
86;--------------------------------------------------------------------
87%macro INPUT_TO_AL_FROM_IDE_REGISTER 1
88%ifndef MODULE_8BIT_IDE ; Standard IDE controllers only
89
90 %ifnidni %1, dx
91 mov dx, %1
92 %endif
93 add dx, [di+DPT.wBasePort]
94 in al, dx
95
96%else ; Register translations required
97
98 %ifnidni %1, dl
99 mov dl, %1
100 %endif
101 call IdeIO_InputToALfromIdeRegisterInDL
102
103%endif
104%endmacro
105
106
107;--------------------------------------------------------------------
108; UNROLL_SECTORS_IN_CX_TO_DWORDS
109; UNROLL_SECTORS_IN_CX_TO_QWORDS
110; UNROLL_SECTORS_IN_CX_TO_OWORDS
111; Parameters:
112; CX: Number of sectors in block
113; Returns:
114; CX: Number of DWORDs, QWORDs or OWORDs in block
115; Corrupts registers:
116; Nothing
117;--------------------------------------------------------------------
118%macro UNROLL_SECTORS_IN_CX_TO_DWORDS 0
119%ifdef USE_186
120 shl cx, 7
121%else
122 xchg cl, ch ; Sectors to WORDs (SHL CX, 8)
123 shr cx, 1
124%endif
125%endmacro
126
127%macro UNROLL_SECTORS_IN_CX_TO_QWORDS 0
128%ifdef USE_186
129 shl cx, 6
130%else
131 UNROLL_SECTORS_IN_CX_TO_DWORDS
132 shr cx, 1
133%endif
134%endmacro
135
136%macro UNROLL_SECTORS_IN_CX_TO_OWORDS 0
137%ifdef USE_186
138 shl cx, 5
139%else
140; UNROLL_SECTORS_IN_CX_TO_QWORDS
141; shr cx, 1
142 mov ch, cl ; 2 bytes shorter but possibly slower
143 mov cl, 3
144 shr cx, cl
145%endif
146%endmacro
147
148
149%endif ; IDE_IO_INC
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