source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Inc/Controllers/XTCF.inc @ 567

Last change on this file since 567 was 567, checked in by krille_n_@…, 10 years ago

Changes:

  • Renamed MODULE_FEATURE_SETS to MODULE_POWER_MANAGEMENT.
  • Renamed MODULE_VERY_LATE_INITIALIZATION to MODULE_VERY_LATE_INIT and removed it from the official builds.
  • Removed the code that skips detection of slave drives on XT-CF controllers since slave drives can be used with Lo-tech ISA CompactFlash boards.
  • Added autodetection of the SVC ADP50L controller to XTIDECFG.
  • The autodetection of XT-CF controllers now requires MODULE_8BIT_IDE_ADVANCED in the loaded BIOS.
  • Fixed a bug in XTIDECFG from r502 where the "Base (cmd block) address" menu option would be displayed when a serial device was selected as the IDE controller.
  • XTIDECFG would display the "Enable interrupt" menu option for the XTIDE r1 but not for the XTIDE r2. It's now displayed for both controller types.
  • Disabled the "Internal Write Cache" menu option in the Master/Slave Drive menus for serial device type drives.
  • Optimizations and other fixes.
File size: 3.6 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 AH1E_XTCF.asm).
57;
58XTCF_8BIT_PIO_MODE                  EQU     00h
59XTCF_8BIT_PIO_MODE_WITH_BIU_OFFLOAD EQU     01h
60XTCF_DMA_MODE                       EQU     02h
61
62; Subcommands for AH=1Eh, Lo-tech XT-CF features.
63; Return values common for all subcommands:
64;       AH:     RET_HD_SUCCESS if drive is XT-CF
65;               RET_HD_INVALID if drive is not XT-CF
66;       CF:     0 if successful, 1 if error
67
68;--------------------------------------------------------------------
69; IS_THIS_DRIVE_XTCF
70;   Parameters:
71;       DL:     Drive Number
72;--------------------------------------------------------------------
73IS_THIS_DRIVE_XTCF                  EQU     0
74
75;--------------------------------------------------------------------
76; SET_XTCF_TRANSFER_MODE
77;   Parameters:
78;       DH:     Mode to select, i.e. XTCF_8BIT_PIO_MODE
79;               Note there's no way to know if an XT-CF adapter
80;               supports DMA, so the user should enable DMA
81;               only if a DMA-enabled XT-CFv3 is fitted.
82;       DL:     Drive Number
83;--------------------------------------------------------------------
84SET_XTCF_TRANSFER_MODE              EQU     1
85
86;--------------------------------------------------------------------
87; GET_XTCF_TRANSFER_MODE
88;   Parameters:
89;       DL:     Drive Number
90;   Returns:
91;       DH:     One of the mode values listed above,
92;               i.e. XTCF_8BIT_PIO_MODE
93;       DL:     Block mode sectors per block configured
94;--------------------------------------------------------------------
95GET_XTCF_TRANSFER_MODE              EQU     2
96
97
98%endif ; XTCF_INC
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