windows-nt/Source/XPSP1/NT/base/boot/detect/i386/video.inc

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2020-09-26 03:20:57 -05:00
;++
;
; Copyright (c) 1989 Microsoft Corporation
;
; Module Name:
;
; video.inc
;
; Abstract:
;
; This module implements the assembley definitions necessary to determine
; display adapter type.
;
; Author:
;
; Shie-Lin Tzong (shielint) 15-July-1991.
; Most of the stuff is extracted from win31 setup code.
;
; Environment:
;
; 80x86 Real Mode.
;
; Revision History:
;
;
;--
;
; Display type definitions.
; BIT 16-31 Defines video adapter type
; bit 0 0 - color; 1 - mono
; bit 1-7 Reserved
; bit 8-15 Adapter specific information.
;
VD_UNKNOWN EQU 0
VD_COLOR EQU 0
VD_MONO EQU 1
VD_VGA EQU 10000h
VD_COMPAQ_AVGA EQU 20000H
VD_COMPAQ_QVIS EQU 30000H
VD_8514 EQU 40000H
VD_GENOA_VGA EQU 50000H
VD_VIDEO7_VGA EQU 60000H
VD_TRIDENT_VGA EQU 70000H
VD_PARADISE_VGA EQU 80000H
VD_ATI_VGA EQU 90000H
VD_TSENGLAB_VGA EQU 0A0000H
VD_CIRRUS_VGA EQU 0B0000H
VD_DELL_DGX EQU 0C0000H
VD_S3 EQU 0D0000H
VD_NCR_77C22 EQU 0E0000H
VD_WD_90C EQU 0F0000H
VD_XGA EQU 100000H
IFDEF NEC_98
VD_PC9801 EQU 010000h
ENDIF ; NEC_98
;
; Monitor type for 8514
; NOte, 0 is not used.
;
VF_MONITOR_VGA EQU 100h ; Stand VGA
VF_MONITOR_MONO_8503 EQU 200h ; mono 8503
VF_MONITOR_GAD_8514 EQU 300h ; 8514 type monitor
;
; Video 7 VGA specific flags
;
VF_V7_VRAM EQU 100H
VF_V7_DRAM EQU 200H
;
; NCR 77C2x specific flags
;
VF_NCR_77C22E EQU 100H
;
; WD90Cxx specific flags
;
VF_WD_00 EQU 100H
VF_WD_30 EQU 200H
VF_WD_31 EQU 300H
;
; Trident VGA specific flags
;
VF_TVGA_9100 EQU 100h
;
; Paradise VGA specific flags
;
VF_PVGA_PROM EQU 100h ; with Paradise ROM
VF_PVGA_CHIP_1F EQU 200h ; with 1F chip
;
; ATI VGA specific flags
;
VF_ATIVGA_WONDDER3 EQU 100h
;
; Tseng Lab VGA specific flags
;
VF_TLVGA_ET3000 EQU 0
VF_TLVGA_ET4000 EQU 100h
;
; Cirrus Logic VGA specific definitions
;
VF_CLVGA_REVC EQU 100h ; 610/620 rev C
;
; 070193 - adrianc
; Added the Cirrus chip detection for COMPAQ servers.
;
VF_CLVGA_5420r0 EQU 200h ; COMPAQ Cirrus implementations
VF_CLVGA_5420r1 EQU 300h
VF_CLVGA_5428 EQU 400h
VF_CLVGA_542x EQU 500h
;
; Equates for 8514 register ports.
;
ERR_TERM equ 92e8h ; 8514 error term register.
SUBSYS_STAT equ 42e8h ; 8514 Subsystem status register.
;
; Video display register equates
; ...Colr are for CGA and EGA color modes
; ...Mono are for EGA/VGA monochrome modes
;
;NAMING CONVENTIONS
; pXXXXX is a I/O port definition
; fXXXXX is a bit mask
; bXXXXX is a bit number
; mXXXXX is a bit mask (multiple fXXXX)
; vXXXXX is a value to output/input to/from a port
; xXXXXX is a specific index
;
; CRT registers
;
pCRTCIndxColr EQU 3D4h ; CRTC index register
pCRTCIndxMono EQU 3B4h
pCRTCDataColr EQU 3D5h ; CRTC data register
pCRTCDataMono EQU 3B5h
; Status register
;
pStatColr EQU 3DAh ; Status register
pStatMono EQU 3BAh
fStatEna EQU 00000001b ; Video RAM access OK for processor
fStatLPTr EQU 00000010b ; Light pen triggered
fStatLPSw EQU 00000100b ; Light pen switch is "on"
fStatVRTC EQU 00001000b ; Vertical retrace in progress
mStat_IVal EQU fStatEna+fStatVRTC ; Initial value for pseudo status
;
; Feature control
;
pFeatColr EQU pStatColr ; Feature control
pFeatMono EQU pStatMono
pFeatVGAIn EQU 3CAh ; VGA feature control read
fFeatFC0 EQU 00000001b ; FC0
fFeatFC1 EQU 00000010b ; FC1
;
; Light pen
;
pLPen1Colr EQU 3DBh ; Light pen latch clear
pLPen1Mono EQU 3BBh
pLPen2Colr EQU 3DCh ; Light pen latch set
pLPen2Mono EQU 3BCh
;
; Misc input/output
;
pMisc EQU 3C2h ; Miscellaneous output
pMiscIn EQU 3CCh ; VGA read Misc. output
fMiscPNum EQU 00000001b ; 3Dx port numbers(vs. 3Bx)
fMiscREna EQU 00000010b ; Ram enable
fMiscDot EQU 00001100b ; Dot clock select
fMiscOSrc EQU 00010000b ; Output source
fMiscPage EQU 00100000b ; Page bit for odd/even mode
fMiscHPol EQU 01000000b ; Horizontal retrace polarity
fMiscVPol EQU 10000000b ; Vertical retrace polarity
mMiscCRTC EQU fMiscREna+fMiscPage ; Mask for CRTC bits
mMiscMemC EQU 0FFh - mMiscCRTC ; Mask for MemC bits
;
; Misc. status
;
pStt0EGA EQU pMisc ; Miscellaneous status
fStt0Swit EQU 00010000b ; Switch sense(addr'd by dot clk sel)
fStt0FCI0 EQU 00100000b ; Feature card input 0
fStt0FCI1 EQU 01000000b ; Feature card input 1
fStt0VRTC EQU 10000000b ; VRTC
;
; Attribute control
;
pAttr EQU 3C0h ; Attribute(palette) address/data
fVAI_Indx EQU 10000000b ; sign bit of Attribute index is
bVAI_Indx EQU 7 ; flag indicating port is index
fVAI_ScOn EQU 00100000b ; Indicates screen is on
bVAI_ScOn EQU 5
;
; Sequencer
;
pSeqIndx EQU 3C4h ; Sequencer address
pSeqData EQU 3C5h ; Sequencer data
fSeq0ARst EQU 00000001b ; 0:Async reset
fSeq0SRst EQU 00000010b ; 0:Sync reset
fSeq1DPCh EQU 00000001b ; 1:Dots per character
fSeq1BWid EQU 00000010b ; 1:Band Width
fSeq1ShLd EQU 00000100b ; 1:Shift load(0=every char, 1=skip)
fSeq1DClk EQU 00001000b ; 1:Dot clock(=1 if halved)
mSeq2WMsk EQU 00001111b ; 2:Write mask
mSeq3ChrB EQU 00000011b ; 3:Char map B select(attr bit 3 = 0)
mSeq3ChrA EQU 00001100b ; 3:Char map A select(attr bit 3 = 1)
fSeq4Alph EQU 00000001b ; 4:Alpha mode(char gen enabled)
fSeq4ExtM EQU 00000010b ; 4:Extended memory installed
fSeq4SqAd EQU 00000100b ; 4:Seq'l mem addr'ing(vs. odd/even)
fSeq4Chain4 EQU 00001000b ; 4:Chain 4 (double odd/even) for
; 256 color (mode 13)
fSeqF9extpgsel EQU 00000001b ;V7F9:Extended page select
fSeqFCext256m EQU 00000010b ;V7FC:Extended 256 color mode
fSeqFCext256e EQU 00000100b ;V7FC:Extended 256 color enable
fSeqFCseqChain4 EQU 00100000b ;V7FC:Sequential Chain 4
;
; Graphic controller
;
pGrp1Pos EQU 3CCh ; Graphics posn 1(=0)
pGrp2Pos EQU 3CAh ; Graphics posn 2(=1)
pGrpIndx EQU 3CEh ; Graphics controller address
pGrpData EQU 3CFh ; Graphics controller data
fGrp0StV0 EQU 00000001b ; 0:Value for plane 0 if enabled
fGrp0StV1 EQU 00000010b ; 0:Value for plane 1 if enabled
fGrp0StV2 EQU 00000100b ; 0:Value for plane 2 if enabled
fGrp0StV3 EQU 00001000b ; 0:Value for plane 3 if enabled
fGrp1Ena0 EQU 00000001b ; 1:Enable for plane 0
fGrp1Ena1 EQU 00000010b ; 1:Enable for plane 1
fGrp1Ena2 EQU 00000100b ; 1:Enable for plane 2
fGrp1Ena3 EQU 00001000b ; 1:Enable for plane 3
mGrp2Colr EQU 00001111b ; 2:Color compare value
mGrp3RCnt EQU 00000111b ; 3:Rotate left count for mode 0
mGrp3Func EQU 00011000b ; 3:Function for modes 0 and 2
mGrp4RMsk EQU 00000111b ; 4:Read map select
mGrp5WMod EQU 00000011b ; 5:Write mode
fGrp5Test EQU 00000100b ; 5:Test condition
fGrp5RMod EQU 00001000b ; 5:Read mode(0=plane,1=compare)
fGrp5SqAd EQU 00010000b ; 5:Seq'l mem addr'ing(vs. odd/even)
fGrp5CGA EQU 00100000b ; 5:CGA 4 color mode addressing
fGrp6Char EQU 00000001b ; 6:Char or graphics
fGrp6Chain EQU 00000010b ; 6:Chain odd maps after even
mGrp6Addr EQU 00001100b ; 6:Processor view of VRAM start addr
; 00=A000 for 128kb
; 01=A000 for 64kb
; 10=B000 for 32kb
; 11=B800 for 32kb
bGrp6Addr EQU 2 ; First of 2 bits for start addr
mGrp7Colr EQU 00001111b ; 7:Color don't care for read compare
; 8:Mask: use latch value vs. data
;
; VGA subsystem enable
;
pVGAEna EQU 3C3h ; VGA enable register
fVGAEna EQU 00000001b ; Enable access to VGA
;
; VGA DAC
;
pDACWindx EQU 3C8h ; DAC Write index(R/W)
pDACRindx EQU 3C7h ; DAC Read index(RO)
pDACState EQU pDACRindx ; DAC state
pDACData EQU 3C9h ; DAC data(3 successive accesses)
pDACMask EQU 3CAh ; DAC mask
;
; VGA read access to write only registers
;
pMiscRead EQU 3CCh ; Port to read Misc output register
pFeatRead EQU 3CAh ; Port to read Feature output register
;
; 8514 DAC
;
p8514DACWindx EQU 2ECh ; DAC Write index(R/W)
p8514DACRindx EQU 2EBh ; DAC Read index(RO)
p8514DACState EQU pDACRindx ; DAC state
p8514DACData EQU 2EDh ; DAC data(3 successive accesses)
;
; values returned from reads of port pDACState:
;
vDAC_Read_Mode EQU 0
vDAC_Write_Mode EQU 3
xC_CTMiscRead EQU 0Fh ; CHIPS Misc output read index
xC_CTFeatRead EQU 0Eh ; CHIPS Feat output read index
xC_CT400 EQU 0F9h ; CHIPS 400 line reg index
xC_CTTempFE EQU 0FEh ; CHIPS CRTC temp reg FEh
xG_CTCtl EQU 0F7h ; CHIPS control reg index
;
pCMode EQU 3C6h ; Control mode(Compaq specific)
ATiVGA_extended_reg EQU 01ceh
TVGA_3C5_B_WrMode equ 0
TVGA_3C5_B_RdMode equ 1
;
; Definition for IBM XGA video adapter Id.
;
IBM_XGA_ID_LOW EQU 8FD8h
IBM_XGA_ID_HIGH EQU 8FDBh
MCA_POS_DATA_SIZE EQU 6
;
; Misc. V7 VRAM definitions
;
VRAM2_ROM_ID_1 EQU 108h
VRAM2_ROM_ID_2 EQU 208h
VRAM2ERGO_ROM_ID EQU 308h
V7_ID_OFFSET EQU 86h ; The offset to V7VGA ROM id
;
; WD extended registers
;
WD_EXT_IO_PORT EQU 23C0h
;
; Misc. definitions
;
FONT_POINTERS EQU 700h ; physical addr to store font pointers
; This is also the DOS loaded area
VIDEO_SEG EQU 0C000h ; Video memory segment