audk/EdkModulePkg/Bus/Pci/CirrusLogic/Dxe/CirrusLogic5430UgaDraw.c

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/** @file
This file produces the graphics abstration of UGA Draw. It is called by
CirrusLogic5430.c file which deals with the EFI 1.1 driver model.
This file just does graphics.
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "CirrusLogic5430.h"
STATIC
VOID
ClearScreen (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private
);
///
/// Generic Attribute Controller Register Settings
///
static UINT8 AttributeController[21] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00
};
///
/// Generic Graphics Controller Register Settings
///
static UINT8 GraphicsController[9] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF
};
//
// 640 x 480 x 256 color @ 60 Hertz
//
static UINT8 Crtc_640_480_256_60[28] = {
0x5d, 0x4f, 0x50, 0x82, 0x53, 0x9f, 0x00, 0x3e,
0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xe1, 0x83, 0xdf, 0x50, 0x00, 0xe7, 0x04, 0xe3,
0xff, 0x00, 0x00, 0x22
};
static UINT16 Seq_640_480_256_60[15] = {
0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b,
0x5b0c, 0x450d, 0x7e0e, 0x2b1b, 0x2f1c, 0x301d, 0x331e
};
//
// 800 x 600 x 256 color @ 60 Hertz
//
static UINT8 Crtc_800_600_256_60[28] = {
0x7F, 0x63, 0x64, 0x80, 0x6B, 0x1B, 0x72, 0xF0,
0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x58, 0x8C, 0x57, 0x64, 0x00, 0x5F, 0x91, 0xE3,
0xFF, 0x00, 0x00, 0x22
};
static UINT16 Seq_800_600_256_60[15] = {
0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b,
0x5b0c, 0x450d, 0x510e, 0x2b1b, 0x2f1c, 0x301d, 0x3a1e
};
//
// 1024 x 768 x 256 color @ 60 Hertz
//
static UINT8 Crtc_1024_768_256_60[28] = {
0xA3, 0x7F, 0x80, 0x86, 0x85, 0x96, 0x24, 0xFD,
0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x88, 0xFF, 0x80, 0x00, 0x00, 0x24, 0xE3,
0xFF, 0x4A, 0x00, 0x22
};
static UINT16 Seq_1024_768_256_60[15] = {
0x0100, 0x0101, 0x0f02, 0x0003, 0x0e04, 0x1107, 0x0008, 0x4a0b,
0x5b0c, 0x450d, 0x760e, 0x2b1b, 0x2f1c, 0x301d, 0x341e
};
///
/// Table of supported video modes
///
static CIRRUS_LOGIC_5430_VIDEO_MODES CirrusLogic5430VideoModes[] = {
{ 640, 480, 8, 60, Crtc_640_480_256_60, Seq_640_480_256_60, 0xe3 },
{ 800, 600, 8, 60, Crtc_800_600_256_60, Seq_800_600_256_60, 0xef },
{ 1024, 768, 8, 60, Crtc_1024_768_256_60, Seq_1024_768_256_60, 0xef }
};
//
// UGA Draw Protocol Member Functions
//
/**
TODO: Add function description
@param This TODO: add argument description
@param HorizontalResolution TODO: add argument description
@param VerticalResolution TODO: add argument description
@param ColorDepth TODO: add argument description
@param RefreshRate TODO: add argument description
@retval EFI_NOT_STARTED TODO: Add description for return value
@retval EFI_INVALID_PARAMETER TODO: Add description for return value
@retval EFI_SUCCESS TODO: Add description for return value
**/
STATIC
EFI_STATUS
EFIAPI
CirrusLogic5430UgaDrawGetMode (
IN EFI_UGA_DRAW_PROTOCOL *This,
OUT UINT32 *HorizontalResolution,
OUT UINT32 *VerticalResolution,
OUT UINT32 *ColorDepth,
OUT UINT32 *RefreshRate
)
{
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private;
Private = CIRRUS_LOGIC_5430_PRIVATE_DATA_FROM_UGA_DRAW_THIS (This);
if (Private->HardwareNeedsStarting) {
return EFI_NOT_STARTED;
}
if ((HorizontalResolution == NULL) ||
(VerticalResolution == NULL) ||
(ColorDepth == NULL) ||
(RefreshRate == NULL)) {
return EFI_INVALID_PARAMETER;
}
*HorizontalResolution = Private->ModeData[Private->CurrentMode].HorizontalResolution;
*VerticalResolution = Private->ModeData[Private->CurrentMode].VerticalResolution;
*ColorDepth = Private->ModeData[Private->CurrentMode].ColorDepth;
*RefreshRate = Private->ModeData[Private->CurrentMode].RefreshRate;
return EFI_SUCCESS;
}
/**
TODO: Add function description
@param This TODO: add argument description
@param HorizontalResolution TODO: add argument description
@param VerticalResolution TODO: add argument description
@param ColorDepth TODO: add argument description
@param RefreshRate TODO: add argument description
@retval EFI_OUT_OF_RESOURCES TODO: Add description for return value
@retval EFI_SUCCESS TODO: Add description for return value
@retval EFI_NOT_FOUND TODO: Add description for return value
**/
STATIC
EFI_STATUS
EFIAPI
CirrusLogic5430UgaDrawSetMode (
IN EFI_UGA_DRAW_PROTOCOL *This,
IN UINT32 HorizontalResolution,
IN UINT32 VerticalResolution,
IN UINT32 ColorDepth,
IN UINT32 RefreshRate
)
{
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private;
UINTN Index;
Private = CIRRUS_LOGIC_5430_PRIVATE_DATA_FROM_UGA_DRAW_THIS (This);
for (Index = 0; Index < Private->MaxMode; Index++) {
if (HorizontalResolution != Private->ModeData[Index].HorizontalResolution) {
continue;
}
if (VerticalResolution != Private->ModeData[Index].VerticalResolution) {
continue;
}
if (ColorDepth != Private->ModeData[Index].ColorDepth) {
continue;
}
if (RefreshRate != Private->ModeData[Index].RefreshRate) {
continue;
}
if (Private->LineBuffer) {
gBS->FreePool (Private->LineBuffer);
}
Private->LineBuffer = NULL;
Private->LineBuffer = AllocatePool (HorizontalResolution);
if (Private->LineBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
InitializeGraphicsMode (Private, &CirrusLogic5430VideoModes[Index]);
Private->CurrentMode = Index;
Private->HardwareNeedsStarting = FALSE;
return EFI_SUCCESS;
}
return EFI_NOT_FOUND;
}
/**
TODO: Add function description
@param This TODO: add argument description
@param BltBuffer TODO: add argument description
@param BltOperation TODO: add argument description
@param SourceX TODO: add argument description
@param SourceY TODO: add argument description
@param DestinationX TODO: add argument description
@param DestinationY TODO: add argument description
@param Width TODO: add argument description
@param Height TODO: add argument description
@param Delta TODO: add argument description
@retval EFI_INVALID_PARAMETER TODO: Add description for return value
@retval EFI_INVALID_PARAMETER TODO: Add description for return value
@retval EFI_INVALID_PARAMETER TODO: Add description for return value
@retval EFI_INVALID_PARAMETER TODO: Add description for return value
@retval EFI_INVALID_PARAMETER TODO: Add description for return value
@retval EFI_INVALID_PARAMETER TODO: Add description for return value
@retval EFI_SUCCESS TODO: Add description for return value
**/
STATIC
EFI_STATUS
EFIAPI
CirrusLogic5430UgaDrawBlt (
IN EFI_UGA_DRAW_PROTOCOL *This,
IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL
IN EFI_UGA_BLT_OPERATION BltOperation,
IN UINTN SourceX,
IN UINTN SourceY,
IN UINTN DestinationX,
IN UINTN DestinationY,
IN UINTN Width,
IN UINTN Height,
IN UINTN Delta
)
{
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private;
EFI_TPL OriginalTPL;
UINTN DstY;
UINTN SrcY;
EFI_UGA_PIXEL *Blt;
UINTN X;
UINT8 Pixel;
UINT32 WidePixel;
UINTN ScreenWidth;
UINTN Offset;
UINTN SourceOffset;
Private = CIRRUS_LOGIC_5430_PRIVATE_DATA_FROM_UGA_DRAW_THIS (This);
if ((BltOperation < 0) || (BltOperation >= EfiUgaBltMax)) {
return EFI_INVALID_PARAMETER;
}
if (Width == 0 || Height == 0) {
return EFI_INVALID_PARAMETER;
}
//
// If Delta is zero, then the entire BltBuffer is being used, so Delta
// is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,
// the number of bytes in each row can be computed.
//
if (Delta == 0) {
Delta = Width * sizeof (EFI_UGA_PIXEL);
}
//
// We need to fill the Virtual Screen buffer with the blt data.
// The virtual screen is upside down, as the first row is the bootom row of
// the image.
//
//
// Make sure the SourceX, SourceY, DestinationX, DestinationY, Width, and Height parameters
// are valid for the operation and the current screen geometry.
//
if (BltOperation == EfiUgaVideoToBltBuffer) {
//
// Video to BltBuffer: Source is Video, destination is BltBuffer
//
if (SourceY + Height > Private->ModeData[Private->CurrentMode].VerticalResolution) {
return EFI_INVALID_PARAMETER;
}
if (SourceX + Width > Private->ModeData[Private->CurrentMode].HorizontalResolution) {
return EFI_INVALID_PARAMETER;
}
} else {
//
// BltBuffer to Video: Source is BltBuffer, destination is Video
//
if (DestinationY + Height > Private->ModeData[Private->CurrentMode].VerticalResolution) {
return EFI_INVALID_PARAMETER;
}
if (DestinationX + Width > Private->ModeData[Private->CurrentMode].HorizontalResolution) {
return EFI_INVALID_PARAMETER;
}
}
//
// We have to raise to TPL Notify, so we make an atomic write the frame buffer.
// We would not want a timer based event (Cursor, ...) to come in while we are
// doing this operation.
//
OriginalTPL = gBS->RaiseTPL (EFI_TPL_NOTIFY);
switch (BltOperation) {
case EfiUgaVideoToBltBuffer:
//
// Video to BltBuffer: Source is Video, destination is BltBuffer
//
for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY); SrcY++, DstY++) {
Offset = (SrcY * Private->ModeData[Private->CurrentMode].HorizontalResolution) + SourceX;
if (((Offset & 0x03) == 0) && ((Width & 0x03) == 0)) {
Private->PciIo->Mem.Read (
Private->PciIo,
EfiPciIoWidthUint32,
0,
Offset,
Width >> 2,
Private->LineBuffer
);
} else {
Private->PciIo->Mem.Read (
Private->PciIo,
EfiPciIoWidthUint8,
0,
Offset,
Width,
Private->LineBuffer
);
}
for (X = 0; X < Width; X++) {
Blt = (EFI_UGA_PIXEL *) ((UINT8 *) BltBuffer + (DstY * Delta) + (DestinationX + X) * sizeof (EFI_UGA_PIXEL));
Blt->Red = (UINT8) (Private->LineBuffer[X] & 0xe0);
Blt->Green = (UINT8) ((Private->LineBuffer[X] & 0x1c) << 3);
Blt->Blue = (UINT8) ((Private->LineBuffer[X] & 0x03) << 6);
}
}
break;
case EfiUgaVideoToVideo:
//
// Perform hardware acceleration for Video to Video operations
//
ScreenWidth = Private->ModeData[Private->CurrentMode].HorizontalResolution;
SourceOffset = (SourceY * Private->ModeData[Private->CurrentMode].HorizontalResolution) + (SourceX);
Offset = (DestinationY * Private->ModeData[Private->CurrentMode].HorizontalResolution) + (DestinationX);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0000);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0010);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0012);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0014);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0001);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0011);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0013);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0015);
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) (((Width << 8) & 0xff00) | 0x20));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((Width & 0xff00) | 0x21));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) (((Height << 8) & 0xff00) | 0x22));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((Height & 0xff00) | 0x23));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) (((ScreenWidth << 8) & 0xff00) | 0x24));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((ScreenWidth & 0xff00) | 0x25));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) (((ScreenWidth << 8) & 0xff00) | 0x26));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((ScreenWidth & 0xff00) | 0x27));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((((Offset) << 8) & 0xff00) | 0x28));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((((Offset) >> 0) & 0xff00) | 0x29));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((((Offset) >> 8) & 0xff00) | 0x2a));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((((SourceOffset) << 8) & 0xff00) | 0x2c));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((((SourceOffset) >> 0) & 0xff00) | 0x2d));
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((((SourceOffset) >> 8) & 0xff00) | 0x2e));
outw (Private, GRAPH_ADDRESS_REGISTER, 0x002f);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0030);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0d32);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0033);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0034);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0035);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0231);
outb (Private, GRAPH_ADDRESS_REGISTER, 0x31);
while ((inb (Private, GRAPH_DATA_REGISTER) & 0x01) == 0x01)
;
break;
case EfiUgaVideoFill:
Blt = BltBuffer;
Pixel = (UINT8) ((Blt->Red & 0xe0) | ((Blt->Green >> 3) & 0x1c) | ((Blt->Blue >> 6) & 0x03));
WidePixel = (Pixel << 8) | Pixel;
WidePixel = (WidePixel << 16) | WidePixel;
if (DestinationX == 0 && Width == Private->ModeData[Private->CurrentMode].HorizontalResolution) {
Offset = DestinationY * Private->ModeData[Private->CurrentMode].HorizontalResolution;
if (((Offset & 0x03) == 0) && (((Width * Height) & 0x03) == 0)) {
Private->PciIo->Mem.Write (
Private->PciIo,
EfiPciIoWidthFillUint32,
0,
Offset,
(Width * Height) >> 2,
&WidePixel
);
} else {
Private->PciIo->Mem.Write (
Private->PciIo,
EfiPciIoWidthFillUint8,
0,
Offset,
Width * Height,
&Pixel
);
}
} else {
for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {
Offset = (DstY * Private->ModeData[Private->CurrentMode].HorizontalResolution) + DestinationX;
if (((Offset & 0x03) == 0) && ((Width & 0x03) == 0)) {
Private->PciIo->Mem.Write (
Private->PciIo,
EfiPciIoWidthFillUint32,
0,
Offset,
Width >> 2,
&WidePixel
);
} else {
Private->PciIo->Mem.Write (
Private->PciIo,
EfiPciIoWidthFillUint8,
0,
Offset,
Width,
&Pixel
);
}
}
}
break;
case EfiUgaBltBufferToVideo:
for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {
for (X = 0; X < Width; X++) {
Blt = (EFI_UGA_PIXEL *) ((UINT8 *) BltBuffer + (SrcY * Delta) + (SourceX + X) * sizeof (EFI_UGA_PIXEL));
Private->LineBuffer[X] = (UINT8) ((Blt->Red & 0xe0) | ((Blt->Green >> 3) & 0x1c) | ((Blt->Blue >> 6) & 0x03));
}
Offset = (DstY * Private->ModeData[Private->CurrentMode].HorizontalResolution) + DestinationX;
if (((Offset & 0x03) == 0) && ((Width & 0x03) == 0)) {
Private->PciIo->Mem.Write (
Private->PciIo,
EfiPciIoWidthUint32,
0,
Offset,
Width >> 2,
Private->LineBuffer
);
} else {
Private->PciIo->Mem.Write (
Private->PciIo,
EfiPciIoWidthUint8,
0,
Offset,
Width,
Private->LineBuffer
);
}
}
break;
default:
break;
}
gBS->RestoreTPL (OriginalTPL);
return EFI_SUCCESS;
}
//
// Construction and Destruction functions
//
/**
CirrusLogic5430UgaDrawConstructor
TODO: Private - add argument and description to function comment
TODO: EFI_SUCCESS - add return value to function comment
**/
EFI_STATUS
CirrusLogic5430UgaDrawConstructor (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private
)
{
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
UINTN Index;
//
// Fill in Private->UgaDraw protocol
//
UgaDraw = &Private->UgaDraw;
UgaDraw->GetMode = CirrusLogic5430UgaDrawGetMode;
UgaDraw->SetMode = CirrusLogic5430UgaDrawSetMode;
UgaDraw->Blt = CirrusLogic5430UgaDrawBlt;
//
// Initialize the private data
//
Private->MaxMode = CIRRUS_LOGIC_5430_UGA_DRAW_MODE_COUNT;
Private->CurrentMode = 0;
for (Index = 0; Index < Private->MaxMode; Index++) {
Private->ModeData[Index].HorizontalResolution = CirrusLogic5430VideoModes[Index].Width;
Private->ModeData[Index].VerticalResolution = CirrusLogic5430VideoModes[Index].Height;
Private->ModeData[Index].ColorDepth = 32;
Private->ModeData[Index].RefreshRate = CirrusLogic5430VideoModes[Index].RefreshRate;
}
Private->HardwareNeedsStarting = TRUE;
Private->LineBuffer = NULL;
//
// Initialize the hardware
//
UgaDraw->SetMode (
UgaDraw,
Private->ModeData[Private->CurrentMode].HorizontalResolution,
Private->ModeData[Private->CurrentMode].VerticalResolution,
Private->ModeData[Private->CurrentMode].ColorDepth,
Private->ModeData[Private->CurrentMode].RefreshRate
);
DrawLogo (Private);
return EFI_SUCCESS;
}
/**
CirrusLogic5430UgaDrawDestructor
TODO: Private - add argument and description to function comment
TODO: EFI_SUCCESS - add return value to function comment
**/
EFI_STATUS
CirrusLogic5430UgaDrawDestructor (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private
)
{
return EFI_SUCCESS;
}
/**
TODO: Add function description
@param Private TODO: add argument description
@param Address TODO: add argument description
@param Data TODO: add argument description
TODO: add return values
**/
VOID
outb (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private,
UINTN Address,
UINT8 Data
)
{
Private->PciIo->Io.Write (
Private->PciIo,
EfiPciIoWidthUint8,
EFI_PCI_IO_PASS_THROUGH_BAR,
Address,
1,
&Data
);
}
/**
TODO: Add function description
@param Private TODO: add argument description
@param Address TODO: add argument description
@param Data TODO: add argument description
TODO: add return values
**/
VOID
outw (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private,
UINTN Address,
UINT16 Data
)
{
Private->PciIo->Io.Write (
Private->PciIo,
EfiPciIoWidthUint16,
EFI_PCI_IO_PASS_THROUGH_BAR,
Address,
1,
&Data
);
}
/**
TODO: Add function description
@param Private TODO: add argument description
@param Address TODO: add argument description
TODO: add return values
**/
UINT8
inb (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private,
UINTN Address
)
{
UINT8 Data;
Private->PciIo->Io.Read (
Private->PciIo,
EfiPciIoWidthUint8,
EFI_PCI_IO_PASS_THROUGH_BAR,
Address,
1,
&Data
);
return Data;
}
/**
TODO: Add function description
@param Private TODO: add argument description
@param Address TODO: add argument description
TODO: add return values
**/
UINT16
inw (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private,
UINTN Address
)
{
UINT16 Data;
Private->PciIo->Io.Read (
Private->PciIo,
EfiPciIoWidthUint16,
EFI_PCI_IO_PASS_THROUGH_BAR,
Address,
1,
&Data
);
return Data;
}
/**
TODO: Add function description
@param Private TODO: add argument description
@param Index TODO: add argument description
@param Red TODO: add argument description
@param Green TODO: add argument description
@param Blue TODO: add argument description
TODO: add return values
**/
VOID
SetPaletteColor (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private,
UINTN Index,
UINT8 Red,
UINT8 Green,
UINT8 Blue
)
{
outb (Private, PALETTE_INDEX_REGISTER, (UINT8) Index);
outb (Private, PALETTE_DATA_REGISTER, (UINT8) (Red >> 2));
outb (Private, PALETTE_DATA_REGISTER, (UINT8) (Green >> 2));
outb (Private, PALETTE_DATA_REGISTER, (UINT8) (Blue >> 2));
}
/**
TODO: Add function description
@param Private TODO: add argument description
TODO: add return values
**/
VOID
SetDefaultPalette (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private
)
{
UINTN Index;
UINTN RedIndex;
UINTN GreenIndex;
UINTN BlueIndex;
Index = 0;
for (RedIndex = 0; RedIndex < 8; RedIndex++) {
for (GreenIndex = 0; GreenIndex < 8; GreenIndex++) {
for (BlueIndex = 0; BlueIndex < 4; BlueIndex++) {
SetPaletteColor (Private, Index, (UINT8) (RedIndex << 5), (UINT8) (GreenIndex << 5), (UINT8) (BlueIndex << 6));
Index++;
}
}
}
}
/**
TODO: Add function description
@param Private TODO: add argument description
TODO: add return values
**/
STATIC
VOID
ClearScreen (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private
)
{
UINT32 Color;
Color = 0;
Private->PciIo->Mem.Write (
Private->PciIo,
EfiPciIoWidthFillUint32,
0,
0,
0x100000 >> 2,
&Color
);
}
/**
TODO: Add function description
@param Private TODO: add argument description
TODO: add return values
**/
VOID
DrawLogo (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private
)
{
UINTN Offset;
UINTN X;
UINTN Y;
UINTN ScreenWidth;
UINTN ScreenHeight;
UINT8 Color;
ScreenWidth = Private->ModeData[Private->CurrentMode].HorizontalResolution;
ScreenHeight = Private->ModeData[Private->CurrentMode].VerticalResolution;
Offset = 0;
for (Y = 0; Y < ScreenHeight; Y++) {
for (X = 0; X < ScreenWidth; X++) {
Color = (UINT8) (256 * (X + Y) / (ScreenWidth + ScreenHeight));
Private->LineBuffer[X] = Color;
}
Private->PciIo->Mem.Write (
Private->PciIo,
EfiPciIoWidthUint32,
0,
Offset + (Y * ScreenWidth),
ScreenWidth >> 2,
Private->LineBuffer
);
}
}
/**
TODO: Add function description
@param Private TODO: add argument description
@param ModeData TODO: add argument description
TODO: add return values
**/
VOID
InitializeGraphicsMode (
CIRRUS_LOGIC_5430_PRIVATE_DATA *Private,
CIRRUS_LOGIC_5430_VIDEO_MODES *ModeData
)
{
UINT8 Byte;
UINTN Index;
outw (Private, SEQ_ADDRESS_REGISTER, 0x1206);
outw (Private, SEQ_ADDRESS_REGISTER, 0x0012);
for (Index = 0; Index < 15; Index++) {
outw (Private, SEQ_ADDRESS_REGISTER, ModeData->SeqSettings[Index]);
}
outb (Private, SEQ_ADDRESS_REGISTER, 0x0f);
Byte = (UINT8) ((inb (Private, SEQ_DATA_REGISTER) & 0xc7) ^ 0x30);
outb (Private, SEQ_DATA_REGISTER, Byte);
outb (Private, MISC_OUTPUT_REGISTER, ModeData->MiscSetting);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0506);
outw (Private, SEQ_ADDRESS_REGISTER, 0x0300);
outw (Private, CRTC_ADDRESS_REGISTER, 0x2011);
for (Index = 0; Index < 28; Index++) {
outw (Private, CRTC_ADDRESS_REGISTER, (UINT16) ((ModeData->CrtcSettings[Index] << 8) | Index));
}
for (Index = 0; Index < 9; Index++) {
outw (Private, GRAPH_ADDRESS_REGISTER, (UINT16) ((GraphicsController[Index] << 8) | Index));
}
inb (Private, INPUT_STATUS_1_REGISTER);
for (Index = 0; Index < 21; Index++) {
outb (Private, ATT_ADDRESS_REGISTER, (UINT8) Index);
outb (Private, ATT_ADDRESS_REGISTER, AttributeController[Index]);
}
outb (Private, ATT_ADDRESS_REGISTER, 0x20);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x0009);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x000a);
outw (Private, GRAPH_ADDRESS_REGISTER, 0x000b);
outb (Private, DAC_PIXEL_MASK_REGISTER, 0xff);
SetDefaultPalette (Private);
ClearScreen (Private);
}