source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeDPT.asm@ 465

Last change on this file since 465 was 410, checked in by aitotat@…, 13 years ago

Changes to XTIDE Universal BIOS:

  • Hotkey Bar now support color attributes even when not including MODULE_BOOT_MENU.
  • Cleaned AH=09h code a bit.
  • MODULE_ADVANCED_ATA now properly changes the device type to 32-bit.
  • BSY and RDY timeouts are now 2500 ms.
File size: 4.9 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 SHORT .NoPowerManagementSupport
50 or BYTE [di+DPT.bFlagsHigh], FLGH_DPT_POWER_MANAGEMENT_SUPPORTED
51.NoPowerManagementSupport:
52%endif ; MODULE_FEATURE_SETS
53
54
55;--------------------------------------------------------------------
56; .StoreDeviceType
57; Parameters:
58; DS:DI: Ptr to Disk Parameter Table
59; CS:BP: Ptr to IDEVARS for the controller
60; Returns:
61; Nothing
62; Corrupts registers:
63; AL
64;--------------------------------------------------------------------
65.StoreDeviceType:
66 call IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI
67
68
69;--------------------------------------------------------------------
70; .StoreBlockMode
71; Parameters:
72; DS:DI: Ptr to Disk Parameter Table
73; Returns:
74; Nothing
75; Corrupts registers:
76; Nothing
77;--------------------------------------------------------------------
78.StoreBlockMode:
79 mov BYTE [di+DPT_ATA.bBlockSize], 1
80
81
82%ifdef MODULE_ADVANCED_ATA
83;--------------------------------------------------------------------
84; .StorePioModeAndTimings
85; Parameters:
86; DS:DI: Ptr to Disk Parameter Table
87; ES:SI: Ptr to 512-byte ATA information read from the drive
88; CS:BP: Ptr to IDEVARS for the controller
89; Returns:
90; Nothing
91; Corrupts registers:
92; AX, BX, CX
93;--------------------------------------------------------------------
94.StorePioMode:
95 call AtaID_GetMaxPioModeToAXandMinCycleTimeToCX
96 mov [di+DPT_ADVANCED_ATA.wMinPioCycleTime], cx
97 mov [di+DPT_ADVANCED_ATA.bPioMode], al
98 or [di+DPT.bFlagsHigh], ah
99
100
101;--------------------------------------------------------------------
102; .DetectAdvancedIdeController
103; Parameters:
104; DS:DI: Ptr to Disk Parameter Table
105; ES:SI: Ptr to 512-byte ATA information read from the drive
106; CS:BP: Ptr to IDEVARS for the controller
107; Returns:
108; Nothing
109; Corrupts registers:
110; AX, BX, CX, DX
111;--------------------------------------------------------------------
112.DetectAdvancedIdeController:
113 call AccessDPT_GetIdeBasePortToBX
114 call AdvAtaInit_DetectControllerForIdeBaseInBX
115 mov [di+DPT_ADVANCED_ATA.wControllerID], ax ; Store zero if none detected
116 mov [di+DPT_ADVANCED_ATA.wControllerBasePort], dx
117 jnc SHORT .NoAdvancedControllerDetected
118
119 ; Use highest common PIO mode from controller and drive.
120 ; Many VLB controllers support PIO modes up to 2.
121 call AdvAtaInit_GetControllerMaxPioModeToAL
122 jnc SHORT .ChangeTo32bitDevice
123 and BYTE [di+DPT.bFlagsHigh], ~FLGH_DPT_IORDY ; No IORDY supported if need to limit
124 MIN_U [di+DPT_ADVANCED_ATA.bPioMode], al
125
126 ; We have detected 32-bit controller so change Device Type since
127 ; it might have been set to 16-bit on IDEVARS
128.ChangeTo32bitDevice:
129 mov BYTE [di+DPT_ATA.bDevice], DEVICE_32BIT_ATA
130.NoAdvancedControllerDetected:
131%endif ; MODULE_ADVANCED_ATA
132
133
134; End DPT
135 clc
136 ret
137
138
139;--------------------------------------------------------------------
140; IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI
141; Parameters:
142; DS:DI: Ptr to Disk Parameter Table
143; CS:BP: Ptr to IDEVARS for the controller
144; Returns:
145; Nothing
146; Corrupts registers:
147; AL
148;--------------------------------------------------------------------
149IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI:
150 mov al, [cs:bp+IDEVARS.bDevice]
151 mov [di+DPT_ATA.bDevice], al
152 ret
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