source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeDPT.asm@ 399

Last change on this file since 399 was 399, checked in by krille_n_@…, 13 years ago

Changes:

  • Added Power Management (Standby Timer) support to the BIOS and made it part of an optional module (MODULE_FEATURE_SETS). The total amount of ROM space used by this feature is 37 bytes. UNTESTED
  • Size optimizations (mostly inlining of procedures) and fixed a few bugs in AH9h_HInit.asm:
    1. DPT_ATA.bInitError would be cleared only if MODULE_SERIAL was not defined.
    2. The FLG_INITERROR_FAILED_TO_SET_BLOCK_MODE flag could never be set.
    3. InitializeBlockMode could potentially loop forever if there was an error.
  • Removed some odd looking code in .PushResetStatus in BootMenuPrintCfg.asm
  • Made some changes to XTIDECFG so it can be built.
File size: 5.7 KB
Line 
1; Project name : XTIDE Universal BIOS
2; Description : Sets IDE Device specific parameters to DPT.
3
4;
5; XTIDE Universal BIOS and Associated Tools
6; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 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; Section containing code
21SECTION .text
22
23;--------------------------------------------------------------------
24; IdeDPT_Finalize
25; Parameters:
26; DS:DI: Ptr to Disk Parameter Table
27; ES:SI: Ptr to 512-byte ATA information read from the drive
28; CS:BP: Ptr to IDEVARS for the controller
29; Returns:
30; CF: Clear, IDE interface only supports hard disks
31; Corrupts registers:
32; AX, BX, CX, DX
33;--------------------------------------------------------------------
34IdeDPT_Finalize:
35
36%ifdef MODULE_FEATURE_SETS
37;--------------------------------------------------------------------
38; .DetectPowerManagementSupport
39; Parameters:
40; DS:DI: Ptr to Disk Parameter Table
41; ES:SI: Ptr to 512-byte ATA information read from the drive
42; Returns:
43; Nothing
44; Corrupts registers:
45; Nothing
46;--------------------------------------------------------------------
47.DetectPowerManagementSupport:
48 test BYTE [es:si+ATA6.wSetSup82], A6_wSetSup82_POWERMAN
49 jz .NoPowerManagementSupport
50 or BYTE [di+DPT.bFlagsHigh], FLGH_DPT_POWER_MANAGEMENT_SUPPORTED
51.NoPowerManagementSupport:
52%endif ; MODULE_FEATURE_SETS
53
54;--------------------------------------------------------------------
55; .StoreBlockMode
56; Parameters:
57; DS:DI: Ptr to Disk Parameter Table
58; Returns:
59; Nothing
60; Corrupts registers:
61; Nothing
62;--------------------------------------------------------------------
63.StoreBlockMode:
64 mov BYTE [di+DPT_ATA.bBlockSize], 1
65
66%ifdef MODULE_ADVANCED_ATA
67;--------------------------------------------------------------------
68; .StoreDeviceType
69; Parameters:
70; DS:DI: Ptr to Disk Parameter Table
71; ES:SI: Ptr to 512-byte ATA information read from the drive
72; CS:BP: Ptr to IDEVARS for the controller
73; Returns:
74; Nothing
75; Corrupts registers:
76; Nothing
77;--------------------------------------------------------------------
78.StoreDeviceType:
79 call IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI
80
81;--------------------------------------------------------------------
82; .StorePioModeAndTimings
83; Parameters:
84; DS:DI: Ptr to Disk Parameter Table
85; ES:SI: Ptr to 512-byte ATA information read from the drive
86; CS:BP: Ptr to IDEVARS for the controller
87; Returns:
88; Nothing
89; Corrupts registers:
90; AX, BX, CX
91;--------------------------------------------------------------------
92.StorePioMode:
93 call AtaID_GetMaxPioModeToAXandMinCycleTimeToCX
94 mov [di+DPT_ADVANCED_ATA.wMinPioCycleTime], cx
95 mov [di+DPT_ADVANCED_ATA.bPioMode], al
96 or [di+DPT.bFlagsHigh], ah
97
98;--------------------------------------------------------------------
99; .DetectAdvancedIdeController
100; Parameters:
101; DS:DI: Ptr to Disk Parameter Table
102; ES:SI: Ptr to 512-byte ATA information read from the drive
103; CS:BP: Ptr to IDEVARS for the controller
104; Returns:
105; Nothing
106; Corrupts registers:
107; AX, BX, CX, DX
108;--------------------------------------------------------------------
109.DetectAdvancedIdeController:
110 call AccessDPT_GetIdeBasePortToBX
111 call AdvAtaInit_DetectControllerForIdeBaseInBX
112 mov [di+DPT_ADVANCED_ATA.wControllerID], ax ; Store zero if none detected
113 mov [di+DPT_ADVANCED_ATA.wControllerBasePort], dx
114 jnc SHORT .NoAdvancedControllerDetected
115
116 ; Use highest common PIO mode from controller and drive.
117 ; Many VLB controllers support PIO modes up to 2.
118 call AdvAtaInit_GetControllerMaxPioModeToAL
119 jnc SHORT .ChangeTo32bitDevice
120 and BYTE [di+DPT.bFlagsHigh], ~FLGH_DPT_IORDY ; No IORDY supported if need to limit
121 MIN_U [di+DPT_ADVANCED_ATA.bPioMode], al
122
123 ; We have detected 32-bit controller so change Device Type since
124 ; it might have been set to 16-bit on IDEVARS
125.ChangeTo32bitDevice:
126 mov BYTE [di+DPT_ADVANCED_ATA.bDevice], DEVICE_32BIT_ATA
127
128.NoAdvancedControllerDetected:
129
130%endif ; MODULE_ADVANCED_ATA
131
132;--------------------------------------------------------------------
133; IdeDPT_StoreReversedAddressLinesFlagIfNecessary
134; Parameters:
135; DS:DI: Ptr to Disk Parameter Table
136; CS:BP: Ptr to IDEVARS for the controller
137; Returns:
138; CF: Always clear
139; Corrupts registers:
140; Nothing
141;--------------------------------------------------------------------
142IdeDPT_StoreReversedAddressLinesFlagIfNecessary:
143 cmp BYTE [cs:bp+IDEVARS.bDevice], DEVICE_XTIDE_REV2
144 je SHORT .SetFlagForSwappedA0andA3
145 cmp BYTE [cs:bp+IDEVARS.bDevice], DEVICE_FAST_XTIDE
146 jne SHORT .EndDPT
147.SetFlagForSwappedA0andA3:
148 or BYTE [di+DPT.bFlagsHigh], FLGH_DPT_REVERSED_A0_AND_A3
149.EndDPT:
150 clc
151 ret
152
153
154%ifdef MODULE_ADVANCED_ATA
155;--------------------------------------------------------------------
156; IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI
157; Parameters:
158; DS:DI: Ptr to Disk Parameter Table
159; CS:BP: Ptr to IDEVARS for the controller
160; Returns:
161; Nothing
162; Corrupts registers:
163; AL
164;--------------------------------------------------------------------
165IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI:
166 mov al, [cs:bp+IDEVARS.bDevice]
167 mov [di+DPT_ADVANCED_ATA.bDevice], al
168 ret
169
170%endif
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