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reactos/drivers/video/miniport/vga_new/vbemodes.c

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- Add new unified VGA/VBE miniport driver. Based on NT4 DDK Cirrus Miniport Driver Sample with my modifications (marked with // eVb) to change Cirrus parts to VGA parts if needed. Also add VBE suppor which is not in Cirrus driver, but exists in Windows VGA miniport. - Work-in-progress, can boot to GUI with VMWare, but banked modes not yet supported, no VDM, no Mode-X, etc... - Thanks to sir_richard for help with headers, comments and other English stuff. - Driver is only built, not yet used. - NOTE: Some parts of BootVid seem to use functions copied from this sample (VgaInterpretCmdStream) but under "GPL", and also buggy (Chain4 Mode test will not work on most cards and VgaIsPresent == FALSE). Someone should fix. svn path=/trunk/; revision=45873
2010-03-05 17:22:18 +00:00
/*
* PROJECT: ReactOS VGA Miniport Driver
* LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: boot/drivers/video/miniport/vga/vbemodes.c
* PURPOSE: Mode Initialization and Mode Set for VBE-compatible cards
* PROGRAMMERS: ReactOS Portable Systems Group
*/
/* INCLUDES *******************************************************************/
#include "vga.h"
/* FUNCTIONS ******************************************************************/
ULONG
NTAPI
RaiseToPower2Ulong(IN ULONG Value)
{
ULONG SquaredResult = Value;
if ((Value - 1) & Value) for (SquaredResult = 1; (SquaredResult < Value) && (SquaredResult); SquaredResult *= 2);
return SquaredResult;
}
ULONG
NTAPI
RaiseToPower2(IN USHORT Value)
{
ULONG SquaredResult = Value;
if ((Value - 1) & Value) for (SquaredResult = 1; (SquaredResult < Value) && (SquaredResult); SquaredResult *= 2);
return SquaredResult;
}
ULONG
NTAPI
VbeGetVideoMemoryBaseAddress(IN PHW_DEVICE_EXTENSION VgaExtension,
IN PVIDEOMODE VgaMode)
{
ULONG Length = 4 * 1024;
USHORT TrampolineMemorySegment, TrampolineMemoryOffset;
PVOID Context;
INT10_BIOS_ARGUMENTS BiosArguments;
PVBE_MODE_INFO VbeModeInfo;
ULONG BaseAddress;
VP_STATUS Status;
/* Need linear and INT10 interface */
if (!(VgaMode->fbType & VIDEO_MODE_BANKED)) return 0;
if (VgaExtension->Int10Interface.Size) return 0;
/* Allocate scratch area and context */
VbeModeInfo = VideoPortAllocatePool(VgaExtension, 1, sizeof(VBE_MODE_INFO), ' agV');
if (!VbeModeInfo) return 0;
Context = VgaExtension->Int10Interface.Context;
Status = VgaExtension->Int10Interface.Int10AllocateBuffer(Context,
&TrampolineMemorySegment,
&TrampolineMemoryOffset,
&Length);
if (Status != NO_ERROR) return 0;
/* Ask VBE BIOS for mode info */
BiosArguments.Ecx = HIWORD(VgaMode->Mode);
BiosArguments.Edi = TrampolineMemorySegment;
BiosArguments.SegEs = TrampolineMemoryOffset;
BiosArguments.Eax = VBE_GET_MODE_INFORMATION;
Status = VgaExtension->Int10Interface.Int10CallBios(Context, &BiosArguments);
if (Status != NO_ERROR) return 0;
if (BiosArguments.Eax != VBE_SUCCESS) return 0;
Status = VgaExtension->Int10Interface.Int10ReadMemory(Context,
TrampolineMemorySegment,
TrampolineMemoryOffset,
VbeModeInfo,
sizeof(VBE_MODE_INFO));
if (Status != NO_ERROR) return 0;
/* Return phys address and cleanup */
BaseAddress = VbeModeInfo->PhysBasePtr;
VgaExtension->Int10Interface.Int10FreeBuffer(Context,
TrampolineMemorySegment,
TrampolineMemoryOffset);
VideoPortFreePool(VgaExtension, VbeModeInfo);
return BaseAddress;
}
VP_STATUS
NTAPI
VbeSetMode(IN PHW_DEVICE_EXTENSION VgaDeviceExtension,
IN PVIDEOMODE VgaMode,
OUT PULONG PhysPtrChange)
{
VP_STATUS Status;
VIDEO_X86_BIOS_ARGUMENTS BiosArguments;
ULONG ModeIndex;
ULONG BaseAddress;
VideoPortZeroMemory(&BiosArguments, sizeof(BiosArguments));
ModeIndex = VgaMode->Mode;
BiosArguments.Eax = ModeIndex & 0x0000FFFF;
BiosArguments.Ebx = ModeIndex >> 16;
VideoPortDebugPrint(0, "Switching to %lx %lx\n", BiosArguments.Eax, BiosArguments.Ebx);
Status = VideoPortInt10(VgaDeviceExtension, &BiosArguments);
if (Status != NO_ERROR) return Status;
/* Check for VESA mode */
if (ModeIndex >> 16)
{
/* Mode set fail */
if (BiosArguments.Eax != VBE_SUCCESS) return ERROR_INVALID_PARAMETER;
/* Check current mode is desired mode */
BiosArguments.Eax = VBE_GET_CURRENT_VBE_MODE;
Status = VideoPortInt10(VgaDeviceExtension, &BiosArguments);
if ((Status == NO_ERROR) &&
(BiosArguments.Eax == VBE_SUCCESS) &&
((BiosArguments.Ebx ^ (ModeIndex >> 16)) & VBE_MODE_BITS))
{
return ERROR_INVALID_PARAMETER;
}
/* Set logical scanline width if different from physical */
if (VgaMode->LogicalWidth != VgaMode->hres)
{
/* Check setting works after being set */
BiosArguments.Eax = VBE_SET_GET_LOGICAL_SCAN_LINE_LENGTH;
BiosArguments.Ecx = VgaMode->LogicalWidth;
BiosArguments.Ebx = 0;
Status = VideoPortInt10(VgaDeviceExtension, &BiosArguments);
if ((Status != NO_ERROR) ||
(BiosArguments.Eax != VBE_SUCCESS) ||
(BiosArguments.Ecx != VgaMode->LogicalWidth))
{
return ERROR_INVALID_PARAMETER;
}
}
}
/* Get VRAM address to update changes */
BaseAddress = VbeGetVideoMemoryBaseAddress(VgaDeviceExtension, VgaMode);
if ((BaseAddress) && (VgaMode->PhysBase != BaseAddress))
{
*PhysPtrChange = TRUE;
VgaMode->PhysBase = BaseAddress;
}
return NO_ERROR;
}
VOID
NTAPI
InitializeModeTable(IN PHW_DEVICE_EXTENSION VgaExtension)
{
ULONG ModeCount = 0;
ULONG Length = 4 * 1024;
ULONG TotalMemory;
VP_STATUS Status;
INT10_BIOS_ARGUMENTS BiosArguments;
PVBE_INFO VbeInfo;
PVBE_MODE_INFO VbeModeInfo;
PVOID Context;
USHORT TrampolineMemorySegment;
USHORT TrampolineMemoryOffset;
ULONG VbeVersion;
ULONG NewModes = 0;
BOOLEAN FourBppModeFound = FALSE;
USHORT ModeResult;
USHORT Mode;
PUSHORT ThisMode;
BOOLEAN LinearAddressing;
ULONG Size, ScreenSize;
PVIDEOMODE VgaMode;
PVOID BaseAddress;
ULONG ScreenStride = 0;
PHYSICAL_ADDRESS PhysicalAddress;
/* Enable only default vga modes if no vesa */
VgaModeList = ModesVGA;
if (VideoPortIsNoVesa())
{
VgaExtension->Int10Interface.Size = 0;
VgaExtension->Int10Interface.Version = 0;
return;
}
/* Query INT10 interface */
VgaExtension->Int10Interface.Version = VIDEO_PORT_INT10_INTERFACE_VERSION_1;
VgaExtension->Int10Interface.Size = sizeof(VIDEO_PORT_INT10_INTERFACE);
if (VideoPortQueryServices(VgaExtension,
VideoPortServicesInt10,
(PINTERFACE)&VgaExtension->Int10Interface))
{
VgaExtension->Int10Interface.Size = 0;
VgaExtension->Int10Interface.Version = 0;
}
/* Add ref */
//VideoPortDebugPrint(0, "have int10 iface\n");
VgaExtension->Int10Interface.InterfaceReference(VgaExtension->Int10Interface.Context);
Context = VgaExtension->Int10Interface.Context;
/* Allocate scratch area and context */
Status = VgaExtension->Int10Interface.Int10AllocateBuffer(Context,
&TrampolineMemorySegment,
&TrampolineMemoryOffset,
&Length);
if (Status != NO_ERROR) return;
VbeInfo = VideoPortAllocatePool(VgaExtension, 1, sizeof(VBE_INFO), ' agV');
VbeModeInfo = &VbeInfo->Modes;
if (!VbeInfo) return;
/* Init VBE data and write to card buffer */
//VideoPortDebugPrint(0, "have int10 data\n");
VbeInfo->ModeArray[128] = 0xFFFF;
strcpy(VbeInfo->Info.Signature, "VBE2");
Status = VgaExtension->Int10Interface.Int10WriteMemory(Context,
TrampolineMemorySegment,
TrampolineMemoryOffset,
VbeInfo,
512);
if (Status != NO_ERROR) return;
/* Get controller info */
BiosArguments.Edi = TrampolineMemoryOffset;
BiosArguments.SegEs = TrampolineMemorySegment;
BiosArguments.Eax = VBE_GET_CONTROLLER_INFORMATION;
Status = VgaExtension->Int10Interface.Int10CallBios(Context, &BiosArguments);
if (Status != NO_ERROR) return;
if (BiosArguments.Eax != VBE_SUCCESS) return;
Status = VgaExtension->Int10Interface.Int10ReadMemory(Context,
TrampolineMemorySegment,
TrampolineMemoryOffset,
VbeInfo,
512);
if (Status != NO_ERROR) return;
/* Check correct VBE BIOS */
//VideoPortDebugPrint(0, "have vbe data\n");
TotalMemory = VbeInfo->Info.TotalMemory << 16;
VbeVersion = VbeInfo->Info.Version;
VideoPortDebugPrint(0, "vbe version %lx memory %lx\n", VbeVersion, TotalMemory);
if (!ValidateVbeInfo(VgaExtension, VbeInfo)) return;
/* Read modes */
//VideoPortDebugPrint(0, "read modes from %p\n", VbeInfo->Info.VideoModePtr);
Status = VgaExtension->Int10Interface.Int10ReadMemory(Context,
HIWORD(VbeInfo->Info.VideoModePtr),
LOWORD(VbeInfo->Info.VideoModePtr),
VbeInfo->ModeArray,
128 * sizeof(USHORT));
if (Status != NO_ERROR) return;
//VideoPortDebugPrint(0, "Read modes at: %p\n", VbeInfo->ModeArray);
/* Count modes, check for new 4bpp SVGA modes */
ThisMode = VbeInfo->ModeArray;
ModeResult = VbeInfo->ModeArray[0];
while (ModeResult != 0xFFFF)
{
Mode = ModeResult & 0x1FF;
//VideoPortDebugPrint(0, "Mode found: %lx\n", Mode);
if ((Mode == 0x102) || (Mode == 0x6A)) FourBppModeFound = TRUE;
ModeResult = *++ThisMode;
NewModes++;
}
/* Remove the built-in mode if not supported by card and check max modes */
if (!FourBppModeFound) --NumVideoModes;
if ((NewModes >= 128) && (NumVideoModes > 8)) goto Cleanup;
/* Switch to new SVGA mode list, copy VGA modes */
VgaModeList = VideoPortAllocatePool(VgaExtension, 1, (NewModes + NumVideoModes) * sizeof(VIDEOMODE), ' agV');
if (!VgaModeList) goto Cleanup;
VideoPortMoveMemory(VgaModeList, ModesVGA, NumVideoModes * sizeof(VIDEOMODE));
/* Apply fixup for Intel Brookdale */
if (g_bIntelBrookdaleBIOS)
{
VideoPortDebugPrint(0, "Intel Brookdale-G Video BIOS Not Support!\n");
while (TRUE);
}
/* Scan SVGA modes */
// VideoPortDebugPrint(0, "Static modes: %d\n", NumVideoModes);
VgaMode = &VgaModeList[NumVideoModes];
ThisMode = VbeInfo->ModeArray;
//VideoPortDebugPrint(0, "new modes: %d\n", NewModes);
while (NewModes--)
{
/* Get info on mode */
BiosArguments.Eax = VBE_GET_MODE_INFORMATION;
BiosArguments.Ecx = *ThisMode;
BiosArguments.Edi = TrampolineMemoryOffset;
BiosArguments.SegEs = TrampolineMemorySegment;
Status = VgaExtension->Int10Interface.Int10CallBios(Context, &BiosArguments);
if (Status != NO_ERROR) goto Next;
if (BiosArguments.Eax != VBE_SUCCESS) goto Next;
Status = VgaExtension->Int10Interface.Int10ReadMemory(Context,
TrampolineMemorySegment,
TrampolineMemoryOffset,
VbeModeInfo,
256);
if (Status != NO_ERROR) goto Next;
/* Parse graphics modes only if linear framebuffer support */
//VideoPortDebugPrint(0, "attr: %lx\n", VbeModeInfo->ModeAttributes);
if (!(VbeModeInfo->ModeAttributes & (VBE_MODEATTR_VALID |
VBE_MODEATTR_GRAPHICS))) goto Next;
LinearAddressing = ((VbeVersion >= 0x200) &&
(VbeModeInfo->PhysBasePtr) &&
(VbeModeInfo->ModeAttributes & VBE_MODEATTR_LINEAR)) ?
TRUE : FALSE;
/* Check SVGA modes if 8bpp or higher */
//VideoPortDebugPrint(0, "PhysBase: %lx\n", VbeModeInfo->PhysBasePtr);
if ((VbeModeInfo->XResolution >= 640) &&
(VbeModeInfo->YResolution >= 480) &&
(VbeModeInfo->NumberOfPlanes >= 1) &&
(VbeModeInfo->BitsPerPixel >= 8))
{
/* Copy VGA mode info */
VideoPortZeroMemory(VgaMode, sizeof(VIDEOMODE));
VgaMode->numPlanes = VbeModeInfo->NumberOfPlanes;
VgaMode->hres = VbeModeInfo->XResolution;
VgaMode->vres = VbeModeInfo->YResolution;
VgaMode->Frequency = 1;
VgaMode->Mode = (*ThisMode << 16) | VBE_SET_VBE_MODE;
VgaMode->Granularity = VbeModeInfo->WinGranularity << 10;
//VideoPortDebugPrint(0, "Mode %lx (Granularity %d)\n", VgaMode->Mode, VgaMode->Granularity);
/* Set flags */
if (VbeModeInfo->ModeAttributes & VBE_MODEATTR_COLOR) VgaMode->fbType |= VIDEO_MODE_COLOR;
if (VbeModeInfo->ModeAttributes & VBE_MODEATTR_GRAPHICS) VgaMode->fbType |= VIDEO_MODE_GRAPHICS;
if (VbeModeInfo->ModeAttributes & VBE_MODEATTR_NON_VGA) VgaMode->NonVgaMode = TRUE;
/* If no char data, say 80x25 */
VgaMode->col = VbeModeInfo->XCharSize ? VbeModeInfo->XResolution / VbeModeInfo->XCharSize : 80;
VgaMode->row = VbeModeInfo->YCharSize ? VbeModeInfo->YResolution / VbeModeInfo->YCharSize : 25;
//VideoPortDebugPrint(0, "%d by %d rows\n", VgaMode->Columns, VgaMode->Rows);
/* Check RGB555 (15bpp only) */
VgaMode->bitsPerPlane = VbeModeInfo->BitsPerPixel / VbeModeInfo->NumberOfPlanes;
if ((VgaMode->bitsPerPlane == 16) && (VbeModeInfo->GreenMaskSize == 5)) VgaMode->bitsPerPlane = 15;
//VideoPortDebugPrint(0, "BPP: %d\n", VgaMode->BitsPerPlane);
/* Do linear or banked frame buffers */
VgaMode->FrameBufferBase = 0;
if (!LinearAddressing)
{
/* Read the screen stride (scanline size) */
ScreenStride = RaiseToPower2(VbeModeInfo->BytesPerScanLine);
VgaMode->wbytes = ScreenStride;
//VideoPortDebugPrint(0, "ScanLines: %lx Stride: %lx\n", VbeModeInfo->BytesPerScanLine, VgaMode->Stride);
/* Size of frame buffer is Height X ScanLine, align to bank/page size */
ScreenSize = VgaMode->hres * ScreenStride;
//VideoPortDebugPrint(0, "Size: %lx\n", ScreenSize);
Size = (ScreenSize + ((64 * 1024) - 1)) & ((64 * 1024) - 1);
//VideoPortDebugPrint(0, "Size: %lx\n", ScreenSize);
if (Size > TotalMemory) Size = (Size + ((4 * 1024) - 1)) & ((4 * 1024) - 1);
//VideoPortDebugPrint(0, "Size: %lx\n", ScreenSize);
/* Banked VGA at 0xA0000 (64K) */
//VideoPortDebugPrint(0, "Final size: %lx\n", Size);
VgaMode->fbType |= VIDEO_MODE_BANKED;
VgaMode->sbytes = Size;
VgaMode->PhysSize = 64 * 1024;
VgaMode->FrameBufferSize = 64 * 1024;
VgaMode->NoBankSwitch = TRUE;
VgaMode->PhysBase = 0xA0000;
VgaMode->LogicalWidth = RaiseToPower2(VgaMode->hres);
}
else
{
/* VBE 3.00+ has specific field, read legacy field if not */
//VideoPortDebugPrint(0, "LINEAR MODE!!!\n");
ScreenStride = (VbeVersion >= 0x300) ? VbeModeInfo->LinBytesPerScanLine : 0;
if (!ScreenStride) ScreenStride = VbeModeInfo->BytesPerScanLine;
VgaMode->wbytes = ScreenStride;
//VideoPortDebugPrint(0, "ScanLines: %lx Stride: %lx\n", VbeModeInfo->BytesPerScanLine, VgaMode->Stride);
/* Size of frame buffer is Height X ScanLine, align to page size */
ScreenSize = VgaMode->hres * LOWORD(VgaMode->wbytes);
//VideoPortDebugPrint(0, "Size: %lx\n", ScreenSize);
Size = RaiseToPower2Ulong(ScreenSize);
//VideoPortDebugPrint(0, "Size: %lx\n", ScreenSize);
if (Size > TotalMemory) Size = (Size + ((4 * 1024) - 1)) & ((4 * 1024) - 1);
//VideoPortDebugPrint(0, "Size: %lx\n", ScreenSize);
/* Linear VGA must read settings from VBE */
VgaMode->fbType |= VIDEO_MODE_LINEAR;
VgaMode->sbytes = Size;
VgaMode->PhysSize = Size;
VgaMode->FrameBufferSize = Size;
VgaMode->NoBankSwitch = FALSE;
VgaMode->PhysBase = VbeModeInfo->PhysBasePtr;
VgaMode->LogicalWidth = VgaMode->hres;
/* Make VBE_SET_VBE_MODE command use Linear Framebuffer Select */
VgaMode->Mode |= (VBE_MODE_LINEAR_FRAMEBUFFER << 16);
}
/* Override bank switch if not support by card */
if (VbeModeInfo->ModeAttributes & VBE_MODEATTR_NO_BANK_SWITCH) VgaMode->NoBankSwitch = TRUE;
/* Next */
if (ScreenSize <= TotalMemory)
{
VgaMode++;
ModeCount++;
}
}
Next:
/* Next */
ThisMode++;
}
/* Check if last mode was color to do test */
VideoPortDebugPrint(0, "mode scan complete. Total modes: %d\n", ModeCount);
if (--VgaMode->fbType & VIDEO_MODE_COLOR)
{
/* Try map physical buffer and free if worked */
PhysicalAddress.QuadPart = VgaMode->PhysBase;
BaseAddress = VideoPortGetDeviceBase(VgaExtension, PhysicalAddress, 4 * 1024, FALSE);
if (BaseAddress)
{
VideoPortFreeDeviceBase(VgaExtension, BaseAddress);
}
else
{
/* Not work, so throw out VBE data */
ModeCount = 0;
}
}
/* Cleanup sucess path */
VideoPortFreePool(VgaExtension, VbeInfo);
VgaExtension->Int10Interface.Int10FreeBuffer(Context,
TrampolineMemorySegment,
TrampolineMemoryOffset);
NumVideoModes += ModeCount;
return;
Cleanup:
/* Cleanup failure path, reset standard VGA and free memory */
VgaModeList = ModesVGA;
VideoPortFreePool(VgaExtension, VbeInfo);
VgaExtension->Int10Interface.Int10FreeBuffer(Context,
TrampolineMemorySegment,
TrampolineMemoryOffset);
}
/* EOF */
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