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[NTVDM]

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Start implementing VESA BIOS Extensions (VBE) for our emulated
Cirrus Logic CL-GD5434.


svn path=/trunk/; revision=68508
This commit is contained in:
Aleksandar Andrejevic 2015-07-21 00:46:12 +00:00
parent 0e5cec0429
commit 6c06ac0ea8
4 changed files with 320 additions and 1 deletions
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189
reactos/subsystems/mvdm/ntvdm/bios/bios32/vbe.c Normal file
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@ -0,0 +1,189 @@
/*
* COPYRIGHT: GPLv2+ - See COPYING in the top level directory
* PROJECT: ReactOS Virtual DOS Machine
* FILE: vbe.c
* PURPOSE: VDM VESA BIOS Extensions (for the Cirrus CL-GD5434 emulated card)
* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
*/
/* INCLUDES *******************************************************************/
#define NDEBUG
#include "ntvdm.h"
#include "emulator.h"
#include "cpu/cpu.h"
#include "vbe.h"
#include "io.h"
/* PRIVATE VARIABLES **********************************************************/
static const VBE_MODE Modes[VBE_MODE_COUNT] = {
{ 0x00, 0x00, NULL /* TODO */, NULL /* VGA */ },
{ 0x01, 0x01, NULL /* TODO */, NULL /* VGA */ },
{ 0x02, 0x02, NULL /* TODO */, NULL /* VGA */ },
{ 0x03, 0x03, NULL /* TODO */, NULL /* VGA */ },
{ 0x04, 0x04, NULL /* TODO */, NULL /* VGA */ },
{ 0x05, 0x05, NULL /* TODO */, NULL /* VGA */ },
{ 0x06, 0x06, NULL /* TODO */, NULL /* VGA */ },
{ 0x07, 0x07, NULL /* TODO */, NULL /* VGA */ },
{ 0x0D, 0x0D, NULL /* TODO */, NULL /* VGA */ },
{ 0x0E, 0x0E, NULL /* TODO */, NULL /* VGA */ },
{ 0x0F, 0x0F, NULL /* TODO */, NULL /* VGA */ },
{ 0x10, 0x10, NULL /* TODO */, NULL /* VGA */ },
{ 0x11, 0x11, NULL /* TODO */, NULL /* VGA */ },
{ 0x12, 0x12, NULL /* TODO */, NULL /* VGA */ },
{ 0x13, 0x13, NULL /* TODO */, NULL /* VGA */ },
{ 0x14, 0xFFFF, NULL /* TODO */, NULL /* TODO */ },
{ 0x54, 0x10A, NULL /* TODO */, NULL /* TODO */ },
{ 0x55, 0x109, NULL /* TODO */, NULL /* TODO */ },
{ 0x58, 0x102, NULL /* TODO */, NULL /* TODO */ },
{ 0x5C, 0x103, NULL /* TODO */, NULL /* TODO */ },
{ 0x5D, 0x104, NULL /* TODO */, NULL /* TODO */ },
{ 0x5E, 0x100, NULL /* TODO */, NULL /* TODO */ },
{ 0x5F, 0x101, NULL /* TODO */, NULL /* TODO */ },
{ 0x60, 0x105, NULL /* TODO */, NULL /* TODO */ },
{ 0x64, 0x111, NULL /* TODO */, NULL /* TODO */ },
{ 0x65, 0x114, NULL /* TODO */, NULL /* TODO */ },
{ 0x66, 0x110, NULL /* TODO */, NULL /* TODO */ },
{ 0x67, 0x113, NULL /* TODO */, NULL /* TODO */ },
{ 0x68, 0x116, NULL /* TODO */, NULL /* TODO */ },
{ 0x69, 0x119, NULL /* TODO */, NULL /* TODO */ },
{ 0x6C, 0x106, NULL /* TODO */, NULL /* TODO */ },
{ 0x6D, 0x107, NULL /* TODO */, NULL /* TODO */ },
{ 0x71, 0x112, NULL /* TODO */, NULL /* TODO */ },
{ 0x72, 0xFFFF, NULL /* TODO */, NULL /* TODO */ },
{ 0x73, 0xFFFF, NULL /* TODO */, NULL /* TODO */ },
{ 0x74, 0x117, NULL /* TODO */, NULL /* TODO */ },
{ 0x75, 0x11A, NULL /* TODO */, NULL /* TODO */ },
{ 0x76, 0xFFFF, NULL /* TODO */, NULL /* TODO */ },
{ 0x78, 0x115, NULL /* TODO */, NULL /* TODO */ },
{ 0x79, 0x118, NULL /* TODO */, NULL /* TODO */ },
};
/* PUBLIC FUNCTIONS ***********************************************************/
VOID WINAPI VbeService(LPWORD Stack)
{
INT i;
switch (getAL())
{
/* Get VBE Information */
case 0x00:
{
VBE_INFORMATION Info;
PWORD Data = (PWORD)&Info;
/* Function recognized */
setAL(0x4F);
ZeroMemory(&Info, sizeof(VBE_INFORMATION));
Info.Signature = 'ASEV';
Info.Version = 0x0102;
Info.OemName = OEM_NAME_PTR;
Info.Capabilities = 0;
Info.ModeList = MAKELONG(LOWORD(getDI()
+ FIELD_OFFSET(VBE_INFORMATION, ModeListBuffer)),
getES());
Info.VideoMemory = HIWORD(SVGA_BANK_SIZE * VGA_NUM_BANKS);
/* Fill the mode list */
for (i = 0; i < VBE_MODE_COUNT; i++)
{
/* Some modes don't have VESA numbers */
if (Modes[i].VesaNumber != 0xFFFF)
{
Info.ModeListBuffer[i] = Modes[i].VesaNumber;
}
}
Info.ModeListBuffer[VBE_MODE_COUNT] = 0xFFFF;
/* Copy the data to the caller */
for (i = 0; i < sizeof(VBE_INFORMATION) / sizeof(WORD); i++)
{
*(PWORD)SEG_OFF_TO_PTR(getES(), LOWORD(getDI() + i * 2)) = Data[i];
}
setAH(0);
break;
}
/* Get VBE Mode Information */
case 0x01:
{
WORD ModeNumber = getCX() & 0x1FF;
PWORD Data = NULL;
/* Function recognized */
setAL(0x4F);
/* Find the mode */
for (i = 0; i < VBE_MODE_COUNT; i++)
{
if ((!(ModeNumber & 0x100) && (ModeNumber == Modes[i].Number))
|| ((ModeNumber & 0x100) && (ModeNumber == Modes[i].VesaNumber)))
{
Data = (PWORD)Modes[i].Info;
if (Data == NULL)
{
DPRINT1("WARNING: The mode information for mode %02X (%03X) is missing!\n",
Modes[i].Number,
Modes[i].VesaNumber);
}
}
}
if (Data == NULL)
{
/* Mode not found */
setAH(1);
break;
}
/* Clear the buffer */
for (i = 0; i < 128; i++)
{
*(PWORD)SEG_OFF_TO_PTR(getES(), LOWORD(getDI() + i * 2)) = 0;
}
/* Copy the data to the caller */
for (i = 0; i < sizeof(VBE_MODE_INFO) / sizeof(WORD); i++)
{
*(PWORD)SEG_OFF_TO_PTR(getES(), LOWORD(getDI() + i * 2)) = Data[i];
}
setAH(0);
break;
}
default:
{
DPRINT1("VESA BIOS Extensions function %02Xh NOT IMPLEMENTED!\n", getAL());
break;
}
}
}
BOOLEAN VbeInitialize(VOID)
{
BOOLEAN Success;
BYTE SeqIndex = IOReadB(VGA_SEQ_INDEX);
/* Store the OEM name */
strcpy(FAR_POINTER(OEM_NAME_PTR), OEM_NAME);
/* Unlock SVGA extensions on the card */
IOWriteB(VGA_SEQ_INDEX, SVGA_SEQ_UNLOCK_REG);
IOWriteB(VGA_SEQ_DATA, SVGA_SEQ_UNLOCKED);
/* Check if it worked */
Success = IOReadB(VGA_SEQ_DATA) == SVGA_SEQ_UNLOCKED;
IOWriteB(VGA_SEQ_INDEX, SeqIndex);
return Success;
}

108
reactos/subsystems/mvdm/ntvdm/bios/bios32/vbe.h Normal file
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@ -0,0 +1,108 @@
/*
* COPYRIGHT: GPLv2+ - See COPYING in the top level directory
* PROJECT: ReactOS Virtual DOS Machine
* FILE: vbe.h
* PURPOSE: VDM VESA BIOS Extensions (for the Cirrus CL-GD5434 emulated card)
* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
*/
#ifndef _VBE_H_
#define _VBE_H_
#include "hardware/video/svga.h"
/* DEFINITIONS ****************************************************************/
#define OEM_NAME "Cirrus Logic GD-5434 VGA"
#define OEM_NAME_PTR 0xF01D5091
#define VBE_MODE_COUNT 40
/* VBE Mode Attribute Flags */
#define VBE_MODE_SUPPORTED (1 << 0)
#define VBE_MODE_OPTIONAL_INFO (1 << 1)
#define VBE_MODE_BIOS_SUPPORT (1 << 2)
#define VBE_MODE_COLOR (1 << 3)
#define VBE_MODE_GRAPHICS (1 << 4)
/* VBE Window Attribute Flags */
#define VBE_WINDOW_EXISTS (1 << 0)
#define VBE_WINDOW_READABLE (1 << 1)
#define VBE_WINDOW_WRITABLE (1 << 2)
/* VBE Memory Models */
#define VBE_MODEL_TEXT 0
#define VBE_MODEL_CGA 1
#define VBE_MODEL_HGC 2
#define VBE_MODEL_EGA 3
#define VBE_MODEL_PACKED 4
#define VBE_MODEL_UNCHAINED 5
#define VBE_MODEL_DIRECT 6
#define VBE_MODEL_YUV 7
#pragma pack(push, 1)
typedef struct _VBE_INFORMATION
{
DWORD Signature;
WORD Version;
DWORD OemName;
DWORD Capabilities;
DWORD ModeList;
WORD VideoMemory;
WORD ModeListBuffer[118];
} VBE_INFORMATION, *PVBE_INFORMATION;
C_ASSERT(sizeof(VBE_INFORMATION) == 256);
typedef struct _VBE_MODE_INFO
{
WORD Attributes;
BYTE WindowAttrA;
BYTE WindowAttrB;
WORD WindowGranularity;
WORD WindowSize;
WORD WindowSegmentA;
WORD WindowSegmentB;
DWORD WindowPosFunc;
WORD BytesPerScanline;
WORD Width;
WORD Height;
BYTE CellWidth;
BYTE CellHeight;
BYTE NumPlanes;
BYTE BitsPerPixel;
BYTE NumBanks;
BYTE MemoryModel;
BYTE BankSize;
BYTE ImagePages;
BYTE Reserved;
BYTE RedMaskSize;
BYTE RedFieldPosition;
BYTE GreenMaskSize;
BYTE GreenFieldPosition;
BYTE BlueMaskSize;
BYTE BlueFieldPosition;
BYTE ReservedMaskSize;
BYTE ReservedFieldPosition;
BYTE DirectColorInfo;
} VBE_MODE_INFO, *PVBE_MODE_INFO;
C_ASSERT(sizeof(VBE_MODE_INFO) % sizeof(WORD) == 0);
#pragma pack(pop)
typedef struct _VBE_MODE
{
BYTE Number;
WORD VesaNumber;
PVBE_MODE_INFO Info;
PSVGA_REGISTERS Registers; // NULL means "forward to VGABIOS"
} VBE_MODE, *PVBE_MODE;
/* FUNCTIONS ******************************************************************/
VOID WINAPI VbeService(LPWORD Stack);
BOOLEAN VbeInitialize(VOID);
#endif // _VBE_H_

13
reactos/subsystems/mvdm/ntvdm/bios/vidbios.c
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@ -18,6 +18,7 @@
#include "memory.h"
#include "bios.h"
#include "bios32/vbe.h"
// #include "vidbios.h"
#include "io.h"
@ -1953,6 +1954,7 @@ static CONST VGA_MODE VideoModes[BIOS_MAX_VIDEO_MODE + 1] =
(((ModeNumber) >= 0x00 && (ModeNumber) <= 0x03) || ((ModeNumber) == 0x07))
static PVGA_STATIC_FUNC_TABLE VgaStaticFuncTable;
static BOOLEAN VbeInitialized = FALSE;
/* PRIVATE FUNCTIONS **********************************************************/
@ -3816,6 +3818,13 @@ VOID WINAPI VidBiosVideoService(LPWORD Stack)
break;
}
/* VESA BIOS Extensions */
case 0x4F:
{
if (VbeInitialized) VbeService(Stack);
break;
}
default:
{
DPRINT1("BIOS Function INT 10h, AH = 0x%02X, AL = 0x%02X, BH = 0x%02X NOT IMPLEMENTED\n",
@ -3909,6 +3918,10 @@ BOOLEAN VidBiosInitialize(VOID)
/* Register the BIOS support BOPs */
RegisterBop(BOP_VIDEO_INT, VidBiosVideoService);
/* Initialize VBE */
VbeInitialized = VbeInitialize();
if (!VbeInitialized) DPRINT1("Couldn't initialize VBE!\n");
return TRUE;
}

11
reactos/subsystems/mvdm/ntvdm/hardware/video/svga.h
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@ -30,7 +30,7 @@
#define SVGA_IS_UNLOCKED (VgaSeqRegisters[SVGA_SEQ_UNLOCK_REG] == SVGA_SEQ_UNLOCKED)
#define SVGA_BANK_SIZE 0x100000
#define SVGA_SEQ_MAX_UNLOCKED_REG (SVGA_IS_UNLOCKED ? SVGA_SEQ_MAX_REG : VGA_SEQ_MAX_REG)
#define SVGA_SEQ_MAX_UNLOCKED_REG (SVGA_IS_UNLOCKED ? SVGA_SEQ_MAX_REG : SVGA_SEQ_EXT_MODE_REG)
#define SVGA_CRTC_MAX_UNLOCKED_REG (SVGA_IS_UNLOCKED ? SVGA_CRTC_MAX_REG : VGA_CRTC_MAX_REG)
#define SVGA_GC_MAX_UNLOCKED_REG (SVGA_IS_UNLOCKED ? SVGA_GC_MAX_REG : VGA_GC_MAX_REG)
@ -358,6 +358,15 @@ typedef struct _VGA_REGISTERS
UCHAR Attribute[VGA_AC_MAX_REG];
} VGA_REGISTERS, *PVGA_REGISTERS;
typedef struct _SVGA_REGISTERS
{
UCHAR Misc;
UCHAR Hidden;
UCHAR Sequencer[SVGA_SEQ_MAX_REG];
UCHAR CRT[SVGA_CRTC_MAX_REG];
UCHAR Graphics[SVGA_GC_MAX_REG];
UCHAR Attribute[VGA_AC_MAX_REG];
} SVGA_REGISTERS, *PSVGA_REGISTERS;
/* FUNCTIONS ******************************************************************/