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1. code scrub for ConSplitterDxe. 

2. fixed some bugs when thunking UGA based on GOP.


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7107 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff 2008-12-24 00:15:20 +00:00
parent bcb85cda9d
commit 2da292f637
4 changed files with 411 additions and 369 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

267
MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.c
View File

@ -410,7 +410,7 @@ ConSplitterDriverEntry(
ASSERT_EFI_ERROR (Status);
//
// One of Either Graphics Output protocol and UGA Draw protocol must be supported.
// Either Graphics Output protocol or UGA Draw protocol must be supported.
//
ASSERT (FeaturePcdGet (PcdConOutGopSupport) ||
FeaturePcdGet (PcdConOutUgaSupport));
@ -1269,10 +1269,12 @@ ConSplitterConOutDriverBindingStart (
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
EFI_STATUS Status;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
UINTN SizeOfInfo;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
//
// Start ConSplitter on ControllerHandle, and create the virtual
@ -1308,14 +1310,14 @@ ConSplitterConOutDriverBindingStart (
//
// Open UGA DRAW protocol
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiUgaDrawProtocolGuid,
(VOID **) &UgaDraw,
This->DriverBindingHandle,
mConOut.VirtualHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
gBS->OpenProtocol (
ControllerHandle,
&gEfiUgaDrawProtocolGuid,
(VOID **) &UgaDraw,
This->DriverBindingHandle,
mConOut.VirtualHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
}
//
@ -1331,12 +1333,26 @@ ConSplitterConOutDriverBindingStart (
Status = ConSplitterTextOutAddDevice (&mConOut, TextOut, GraphicsOutput, UgaDraw);
ConSplitterTextOutSetAttribute (&mConOut.TextOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
if (FeaturePcdGet (PcdConOutUgaSupport) && FeaturePcdGet (PcdUgaConsumeSupport)) {
if (FeaturePcdGet (PcdConOutUgaSupport)) {
//
// Match the UGA mode data of ConOut with the current mode
// Get the UGA mode data of ConOut from the current mode
//
if (UgaDraw != NULL) {
UgaDraw->GetMode (
if (GraphicsOutput != NULL) {
Status = GraphicsOutput->QueryMode (GraphicsOutput, GraphicsOutput->Mode->Mode, &SizeOfInfo, &Info);
if (EFI_ERROR (Status)) {
return Status;
}
ASSERT ( SizeOfInfo <= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
mConOut.UgaHorizontalResolution = Info->HorizontalResolution;
mConOut.UgaVerticalResolution = Info->VerticalResolution;
mConOut.UgaColorDepth = 32;
mConOut.UgaRefreshRate = 60;
FreePool (Info);
} else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
Status = UgaDraw->GetMode (
UgaDraw,
&mConOut.UgaHorizontalResolution,
&mConOut.UgaVerticalResolution,
@ -1345,6 +1361,7 @@ ConSplitterConOutDriverBindingStart (
);
}
}
return Status;
}
@ -2366,7 +2383,7 @@ ConSplitterGetIntersection (
}
/**
Add the device's output mode to console splitter's mode list.
Sync the device's output mode to console splitter's mode list.
@param Private Text Out Splitter pointer.
@param TextOut Simple Text Output protocol pointer.
@ -2614,7 +2631,7 @@ ConSplitterGetIntersectionBetweenConOutAndStrErr (
/**
Add display (GOP or UGA) output modes into Consplitter Text Out list.
Add Grahpics Output modes into Consplitter Text Out list.
@param Private Text Out Splitter pointer.
@param GraphicsOutput Graphics Output protocol pointer.
@ -2625,7 +2642,7 @@ ConSplitterGetIntersectionBetweenConOutAndStrErr (
**/
EFI_STATUS
ConSplitterAddDisplayOutputMode (
ConSplitterAddGraphicsOutputMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput,
IN EFI_UGA_DRAW_PROTOCOL *UgaDraw
@ -2648,9 +2665,7 @@ ConSplitterAddDisplayOutputMode (
UINT32 UgaColorDepth;
UINT32 UgaRefreshRate;
if ((GraphicsOutput == NULL) && (UgaDraw == NULL)) {
return EFI_UNSUPPORTED;
}
ASSERT (GraphicsOutput != NULL || UgaDraw != NULL);
CurrentGraphicsOutputMode = Private->GraphicsOutput.Mode;
@ -2671,12 +2686,8 @@ ConSplitterAddDisplayOutputMode (
//
// This is the first Graphics Output device added
//
CurrentGraphicsOutputMode->MaxMode = GraphicsOutput->Mode->MaxMode;
CurrentGraphicsOutputMode->Mode = GraphicsOutput->Mode->Mode;
CopyMem (CurrentGraphicsOutputMode, GraphicsOutput->Mode, sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE));
CopyMem (CurrentGraphicsOutputMode->Info, GraphicsOutput->Mode->Info, GraphicsOutput->Mode->SizeOfInfo);
CurrentGraphicsOutputMode->SizeOfInfo = GraphicsOutput->Mode->SizeOfInfo;
CurrentGraphicsOutputMode->FrameBufferBase = GraphicsOutput->Mode->FrameBufferBase;
CurrentGraphicsOutputMode->FrameBufferSize = GraphicsOutput->Mode->FrameBufferSize;
//
// Allocate resource for the private mode buffer
@ -2811,8 +2822,7 @@ ConSplitterAddDisplayOutputMode (
}
}
}
}
if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
} else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// Graphics console driver can ensure the same mode for all GOP devices
// so we can get the current mode from this video device
@ -2828,11 +2838,11 @@ ConSplitterAddDisplayOutputMode (
CurrentGraphicsOutputMode->MaxMode = 1;
Info = CurrentGraphicsOutputMode->Info;
Info->Version = 0;
Info->HorizontalResolution = UgaHorizontalResolution;
Info->VerticalResolution = UgaVerticalResolution;
Info->PixelFormat = PixelBltOnly;
Info->PixelsPerScanLine = UgaHorizontalResolution;
CurrentGraphicsOutputMode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
Info->HorizontalResolution = UgaHorizontalResolution;
Info->VerticalResolution = UgaVerticalResolution;
Info->PixelFormat = PixelBltOnly;
Info->PixelsPerScanLine = UgaHorizontalResolution;
CurrentGraphicsOutputMode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
CurrentGraphicsOutputMode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) NULL;
CurrentGraphicsOutputMode->FrameBufferSize = 0;
@ -2881,8 +2891,9 @@ Done:
return Status;
}
/**
Set the current console out mode.
This routine will get the current console mode information (column, row)
from ConsoleOutMode variable and set it; if the variable does not exist,
set to user defined console mode.
@ -2895,54 +2906,55 @@ ConsplitterSetConsoleOutMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private
)
{
UINTN Col;
UINTN Row;
UINTN Mode;
UINTN PreferMode;
UINTN BaseMode;
UINTN ModeInfoSize;
UINTN MaxMode;
EFI_STATUS Status;
CONSOLE_OUT_MODE *ModeInfo;
UINTN Col;
UINTN Row;
UINTN Mode;
UINTN PreferMode;
UINTN BaseMode;
UINTN MaxMode;
EFI_STATUS Status;
CONSOLE_OUT_MODE ModeInfo;
UINTN ModeInfoSize;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
PreferMode = 0xFF;
BaseMode = 0xFF;
TextOut = &Private->TextOut;
MaxMode = (UINTN) (TextOut->Mode->MaxMode);
ModeInfoSize = sizeof (CONSOLE_OUT_MODE);
ModeInfo = AllocateZeroPool (sizeof(CONSOLE_OUT_MODE));
ASSERT(ModeInfo != NULL);
Status = gRT->GetVariable (
VARCONOUTMODE,
&gEfiGenericPlatformVariableGuid,
NULL,
&ModeInfoSize,
ModeInfo
&ModeInfo
);
//
// Set to the default mode 80 x 25 required by EFI/UEFI spec;
// user can also define other valid default console mode here.
//
if (EFI_ERROR(Status)) {
ModeInfo->Column = 80;
ModeInfo->Row = 25;
Status = gRT->SetVariable (
VARCONOUTMODE,
&gEfiGenericPlatformVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,
sizeof (CONSOLE_OUT_MODE),
ModeInfo
);
//
// If fail to get variable, set variable to the default mode 80 x 25
// required by UEFI spec;
//
ModeInfo.Column = 80;
ModeInfo.Row = 25;
gRT->SetVariable (
VARCONOUTMODE,
&gEfiGenericPlatformVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,
sizeof (CONSOLE_OUT_MODE),
&ModeInfo
);
}
//
// To find the prefer mode and basic mode from Text Out mode list
//
for (Mode = 0; Mode < MaxMode; Mode++) {
Status = TextOut->QueryMode (TextOut, Mode, &Col, &Row);
if (!EFI_ERROR(Status)) {
if (Col == ModeInfo->Column && Row == ModeInfo->Row) {
if (Col == ModeInfo.Column && Row == ModeInfo.Row) {
PreferMode = Mode;
}
if (Col == 80 && Row == 25) {
@ -2951,31 +2963,33 @@ ConsplitterSetConsoleOutMode (
}
}
//
// Set perfer mode to Text Out devices.
//
Status = TextOut->SetMode (TextOut, PreferMode);
//
// if current mode setting is failed, default 80x25 mode will be set.
//
if (EFI_ERROR(Status)) {
//
// if current mode setting is failed, default 80x25 mode will be set.
//
Status = TextOut->SetMode (TextOut, BaseMode);
ASSERT(!EFI_ERROR(Status));
ModeInfo->Column = 80;
ModeInfo->Row = 25;
ModeInfo.Column = 80;
ModeInfo.Row = 25;
//
// Update ConOutMode variable
//
Status = gRT->SetVariable (
VARCONOUTMODE,
&gEfiGenericPlatformVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,
sizeof (CONSOLE_OUT_MODE),
ModeInfo
);
gRT->SetVariable (
VARCONOUTMODE,
&gEfiGenericPlatformVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,
sizeof (CONSOLE_OUT_MODE),
&ModeInfo
);
}
gBS->FreePool (ModeInfo);
return ;
}
@ -2999,15 +3013,17 @@ ConSplitterTextOutAddDevice (
IN EFI_UGA_DRAW_PROTOCOL *UgaDraw
)
{
EFI_STATUS Status;
UINTN CurrentNumOfConsoles;
INT32 CurrentMode;
INT32 MaxMode;
UINT32 UgaHorizontalResolution;
UINT32 UgaVerticalResolution;
UINT32 UgaColorDepth;
UINT32 UgaRefreshRate;
TEXT_OUT_AND_GOP_DATA *TextAndGop;
EFI_STATUS Status;
UINTN CurrentNumOfConsoles;
INT32 CurrentMode;
INT32 MaxMode;
UINT32 UgaHorizontalResolution;
UINT32 UgaVerticalResolution;
UINT32 UgaColorDepth;
UINT32 UgaRefreshRate;
TEXT_OUT_AND_GOP_DATA *TextAndGop;
UINTN SizeOfInfo;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
Status = EFI_SUCCESS;
CurrentNumOfConsoles = Private->CurrentNumberOfConsoles;
@ -3035,9 +3051,9 @@ ConSplitterTextOutAddDevice (
TextAndGop = &Private->TextOutList[CurrentNumOfConsoles];
TextAndGop->TextOut = TextOut;
TextAndGop->TextOut = TextOut;
TextAndGop->GraphicsOutput = GraphicsOutput;
TextAndGop->UgaDraw = UgaDraw;
TextAndGop->UgaDraw = UgaDraw;
if ((GraphicsOutput == NULL) && (UgaDraw == NULL)) {
//
@ -3073,16 +3089,38 @@ ConSplitterTextOutAddDevice (
MaxMode = Private->TextOutMode.MaxMode;
ASSERT (MaxMode >= 1);
//
// Update DevNull mode according to current video device
//
if (FeaturePcdGet (PcdConOutGopSupport)) {
if ((GraphicsOutput != NULL) || (UgaDraw != NULL)) {
ConSplitterAddDisplayOutputMode (Private, GraphicsOutput, UgaDraw);
//
// If GOP is produced by Consplitter, this device display mode will be added into Graphics Ouput modes.
//
if ((GraphicsOutput != NULL) || (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport))) {
ConSplitterAddGraphicsOutputMode (Private, GraphicsOutput, UgaDraw);
}
}
if (FeaturePcdGet (PcdConOutUgaSupport)) {
if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
UgaHorizontalResolution = 800;
UgaVerticalResolution = 600;
UgaColorDepth = 32;
UgaRefreshRate = 60;
Status = EFI_DEVICE_ERROR;
//
// If UGA is produced by Consplitter
//
if (GraphicsOutput != NULL) {
Status = GraphicsOutput->QueryMode (GraphicsOutput, GraphicsOutput->Mode->Mode, &SizeOfInfo, &Info);
if (EFI_ERROR (Status)) {
return Status;
}
ASSERT ( SizeOfInfo <= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
UgaHorizontalResolution = Info->HorizontalResolution;
UgaVerticalResolution = Info->VerticalResolution;
FreePool (Info);
} else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
Status = UgaDraw->GetMode (
UgaDraw,
&UgaHorizontalResolution,
@ -3090,28 +3128,19 @@ ConSplitterTextOutAddDevice (
&UgaColorDepth,
&UgaRefreshRate
);
if (!EFI_ERROR (Status)) {
Status = ConSpliterUgaDrawSetMode (
&Private->UgaDraw,
UgaHorizontalResolution,
UgaVerticalResolution,
UgaColorDepth,
UgaRefreshRate
);
}
//
// If GetMode/SetMode is failed, set to 800x600 mode
//
if(EFI_ERROR (Status)) {
Status = ConSpliterUgaDrawSetMode (
&Private->UgaDraw,
800,
600,
32,
60
);
}
}
//
// Set UGA Draw mode,
// if GetMode is failed, set to 800x600 mode
//
Status = ConSpliterUgaDrawSetMode (
&Private->UgaDraw,
UgaHorizontalResolution,
UgaVerticalResolution,
UgaColorDepth,
UgaRefreshRate
);
}
if (Private->ConsoleOutputMode == EfiConsoleControlScreenGraphics && GraphicsOutput != NULL) {
@ -3119,8 +3148,14 @@ ConSplitterTextOutAddDevice (
// We just added a new GOP or UGA device in graphics mode
//
if (FeaturePcdGet (PcdConOutGopSupport)) {
//
// Sync display output on new device based on GOP settings.
//
DevNullGopSync (Private, TextAndGop->GraphicsOutput, TextAndGop->UgaDraw);
} else if (FeaturePcdGet (PcdConOutUgaSupport)) {
//
// Sync display output on new device based on UGA settings.
//
DevNullUgaSync (Private, TextAndGop->GraphicsOutput, TextAndGop->UgaDraw);
}
} else if ((CurrentMode >= 0) && ((GraphicsOutput != NULL) || (UgaDraw != NULL)) && (CurrentMode < Private->TextOutMode.MaxMode)) {

178
MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.h
View File

@ -92,8 +92,8 @@ typedef struct {
} CONSOLE_OUT_MODE;
typedef struct {
UINTN Columns;
UINTN Rows;
UINTN Columns;
UINTN Rows;
} TEXT_OUT_SPLITTER_QUERY_DATA;
@ -1861,8 +1861,8 @@ ConSpliterConsoleControlGetMode (
Set the current mode to either text or graphics. Graphics is
for Quiet Boot.
@param This Protocol instance pointer.
@param Mode Mode to set the
@param This Console Control Protocol instance pointer.
@param Mode Mode to set.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@ -1877,21 +1877,20 @@ ConSpliterConsoleControlSetMode (
);
/**
Return the current video mode information.
Returns information for an available graphics mode that the graphics device
and the set of active video output devices supports.
@param This Protocol instance pointer.
@param ModeNumber The mode number to return information on.
@param SizeOfInfo A pointer to the size, in bytes, of the Info
buffer.
@param Info Caller allocated buffer that returns information
about ModeNumber.
@param This The EFI_GRAPHICS_OUTPUT_PROTOCOL instance.
@param ModeNumber The mode number to return information on.
@param SizeOfInfo A pointer to the size, in bytes, of the Info buffer.
@param Info A pointer to callee allocated buffer that returns information about ModeNumber.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_BUFFER_TOO_SMALL The Info buffer was too small.
@retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the
video mode.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_BUFFER_TOO_SMALL The Info buffer was too small.
@retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the video mode.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
@retval EFI_OUT_OF_RESOURCES No resource available.
**/
EFI_STATUS
@ -1904,15 +1903,16 @@ ConSpliterGraphicsOutputQueryMode (
);
/**
Graphics output protocol interface to set video mode.
Set the video device into the specified mode and clears the visible portions of
the output display to black.
@param This Protocol instance pointer.
@param ModeNumber The mode number to be set.
@param This The EFI_GRAPHICS_OUTPUT_PROTOCOL instance.
@param ModeNumber Abstraction that defines the current video mode.
@retval EFI_SUCCESS Graphics mode was changed.
@retval EFI_DEVICE_ERROR The device had an error and could not complete
the request.
@retval EFI_UNSUPPORTED ModeNumber is not supported by this device.
@retval EFI_SUCCESS The graphics mode specified by ModeNumber was selected.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
@retval EFI_UNSUPPORTED ModeNumber is not supported by this device.
@retval EFI_OUT_OF_RESOURCES No resource available.
**/
EFI_STATUS
@ -2007,15 +2007,15 @@ DevNullGopSync (
/**
Return the current video mode information.
@param This Protocol instance pointer.
@param HorizontalResolution Current video horizontal resolution in pixels
@param VerticalResolution Current video vertical resolution in pixels
@param ColorDepth Current video color depth in bits per pixel
@param RefreshRate Current video refresh rate in Hz.
@param This The EFI_UGA_DRAW_PROTOCOL instance.
@param HorizontalResolution The size of video screen in pixels in the X dimension.
@param VerticalResolution The size of video screen in pixels in the Y dimension.
@param ColorDepth Number of bits per pixel, currently defined to be 32.
@param RefreshRate The refresh rate of the monitor in Hertz.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
**/
EFI_STATUS
@ -2029,17 +2029,17 @@ ConSpliterUgaDrawGetMode (
);
/**
Return the current video mode information.
Set the current video mode information.
@param This Protocol instance pointer.
@param HorizontalResolution Current video horizontal resolution in pixels
@param VerticalResolution Current video vertical resolution in pixels
@param ColorDepth Current video color depth in bits per pixel
@param RefreshRate Current video refresh rate in Hz.
@param This The EFI_UGA_DRAW_PROTOCOL instance.
@param HorizontalResolution The size of video screen in pixels in the X dimension.
@param VerticalResolution The size of video screen in pixels in the Y dimension.
@param ColorDepth Number of bits per pixel, currently defined to be 32.
@param RefreshRate The refresh rate of the monitor in Hertz.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_OUT_OF_RESOURCES Out of resources.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS
@ -2053,49 +2053,52 @@ ConSpliterUgaDrawSetMode (
);
/**
Blt a rectangle of pixels on the graphics screen.
The following table defines actions for BltOperations.
EfiUgaVideoFill - Write data from the BltBuffer pixel (SourceX, SourceY)
directly to every pixel of the video display rectangle
(DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
Only one pixel will be used from the BltBuffer. Delta is NOT used.
EfiUgaVideoToBltBuffer - Read data from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
the BltBuffer rectangle (DestinationX, DestinationY )
(DestinationX + Width, DestinationY + Height). If DestinationX or
DestinationY is not zero then Delta must be set to the length in bytes
of a row in the BltBuffer.
EfiUgaBltBufferToVideo - Write data from the BltBuffer rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
not zero then Delta must be set to the length in bytes of a row in the
BltBuffer.
EfiUgaVideoToVideo - Copy from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) .
to the video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
The BltBuffer and Delta are not used in this mode.
EfiUgaVideoFill:
Write data from the BltBuffer pixel (SourceX, SourceY)
directly to every pixel of the video display rectangle
(DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
Only one pixel will be used from the BltBuffer. Delta is NOT used.
EfiUgaVideoToBltBuffer:
Read data from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
the BltBuffer rectangle (DestinationX, DestinationY )
(DestinationX + Width, DestinationY + Height). If DestinationX or
DestinationY is not zero then Delta must be set to the length in bytes
of a row in the BltBuffer.
EfiUgaBltBufferToVideo:
Write data from the BltBuffer rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
not zero then Delta must be set to the length in bytes of a row in the
BltBuffer.
EfiUgaVideoToVideo:
Copy from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) .
to the video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
The BltBuffer and Delta are not used in this mode.
@param This Protocol instance pointer.
@param BltBuffer Buffer containing data to blit into video buffer.
This buffer has a size of
Width*Height*sizeof(EFI_UGA_PIXEL)
@param BltOperation Operation to perform on BlitBuffer and video
memory
@param SourceX X coordinate of source for the BltBuffer.
@param SourceY Y coordinate of source for the BltBuffer.
@param DestinationX X coordinate of destination for the BltBuffer.
@param DestinationY Y coordinate of destination for the BltBuffer.
@param Width Width of rectangle in BltBuffer in pixels.
@param Height Hight of rectangle in BltBuffer in pixels.
@param Delta OPTIONAL.
@param This Protocol instance pointer.
@param BltBuffer Buffer containing data to blit into video buffer. This
buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL)
@param BltOperation Operation to perform on BlitBuffer and video memory
@param SourceX X coordinate of source for the BltBuffer.
@param SourceY Y coordinate of source for the BltBuffer.
@param DestinationX X coordinate of destination for the BltBuffer.
@param DestinationY Y coordinate of destination for the BltBuffer.
@param Width Width of rectangle in BltBuffer in pixels.
@param Height Hight of rectangle in BltBuffer in pixels.
@param Delta OPTIONAL
@retval EFI_SUCCESS The Blt operation completed.
@retval EFI_INVALID_PARAMETER BltOperation is not valid.
@retval EFI_DEVICE_ERROR A hardware error occured writting to the video
buffer.
@retval EFI_SUCCESS The Blt operation completed.
@retval EFI_INVALID_PARAMETER BltOperation is not valid.
@retval EFI_DEVICE_ERROR A hardware error occured writting to the video buffer.
**/
EFI_STATUS
@ -2162,7 +2165,7 @@ DevNullTextOutOutputString (
/**
Sets the output device(s) to a specified mode.
@param Private Private data structure pointer.
@param Private Text Out Splitter pointer.
@param ModeNumber The mode number to set.
@retval EFI_SUCCESS The requested text mode was set.
@ -2182,7 +2185,7 @@ DevNullTextOutSetMode (
Clears the output device(s) display to the currently selected background
color.
@param Private Protocol instance pointer.
@param Private Text Out Splitter pointer.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete
@ -2198,7 +2201,7 @@ DevNullTextOutClearScreen (
/**
Sets the current coordinates of the cursor position.
@param Private Protocol instance pointer.
@param Private Text Out Splitter pointer.
@param Column
@param Row the position to set the cursor to. Must be
greater than or equal to zero and less than the
@ -2220,14 +2223,13 @@ DevNullTextOutSetCursorPosition (
);
/**
Implements SIMPLE_TEXT_OUTPUT.EnableCursor().
In this driver, the cursor cannot be hidden.
Set cursor visibility property.
@param Private Indicates the calling context.
@param Private Text Out Splitter pointer.
@param Visible If TRUE, the cursor is set to be visible, If
FALSE, the cursor is set to be invisible.
@retval EFI_SUCCESS The request is valid.
@retval EFI_SUCCESS Returns always.
**/
EFI_STATUS
@ -2240,7 +2242,7 @@ DevNullTextOutEnableCursor (
Take the DevNull TextOut device and update the Simple Text Out on every
UGA device.
@param Private Indicates the calling context.
@param Private Text Out Splitter pointer.
@retval EFI_SUCCESS The request is valid.
@retval other Return status of TextOut->OutputString ()

7
MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe.inf
View File

@ -3,6 +3,13 @@
#
# This driver acts as a virtual console, takes over the console I/O control from selected
# standard console devices, and transmits console I/O to related console device drivers.
# Consplitter could install Graphics Output protocol and/or UGA Draw protocol in system
# table according PCD settings(PcdConOutGopSupport, and PcdConOutUgaSupport). It always
# consumes Graphics Output protocol which is produced by display device, and consumes UGA Draw
# protocol which is produced by display device according to PcdUgaConsumeSupport value.
# Note: If only UGA Draw protocol is installed in system table, PcdUgaConsumeSupport
# should be set to TRUE.
#
# Copyright (c) 2006 - 2008, Intel Corporation
#
# All rights reserved. This program and the accompanying materials

328
MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterGraphics.c
View File

@ -16,7 +16,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "ConSplitter.h"
@ -80,8 +79,8 @@ ConSpliterConsoleControlGetMode (
Set the current mode to either text or graphics. Graphics is
for Quiet Boot.
@param This Protocol instance pointer.
@param Mode Mode to set the
@param This Console Control Protocol instance pointer.
@param Mode Mode to set.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@ -152,21 +151,20 @@ ConSpliterConsoleControlSetMode (
/**
Return the current video mode information.
Returns information for an available graphics mode that the graphics device
and the set of active video output devices supports.
@param This Protocol instance pointer.
@param ModeNumber The mode number to return information on.
@param SizeOfInfo A pointer to the size, in bytes, of the Info
buffer.
@param Info Caller allocated buffer that returns information
about ModeNumber.
@param This The EFI_GRAPHICS_OUTPUT_PROTOCOL instance.
@param ModeNumber The mode number to return information on.
@param SizeOfInfo A pointer to the size, in bytes, of the Info buffer.
@param Info A pointer to callee allocated buffer that returns information about ModeNumber.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_BUFFER_TOO_SMALL The Info buffer was too small.
@retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the
video mode.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_BUFFER_TOO_SMALL The Info buffer was too small.
@retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the video mode.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
@retval EFI_OUT_OF_RESOURCES No resource available.
**/
EFI_STATUS
@ -194,7 +192,6 @@ ConSpliterGraphicsOutputQueryMode (
}
*Info = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
if (*Info == NULL) {
return EFI_OUT_OF_RESOURCES;
}
@ -208,15 +205,16 @@ ConSpliterGraphicsOutputQueryMode (
/**
Graphics output protocol interface to set video mode.
Set the video device into the specified mode and clears the visible portions of
the output display to black.
@param This Protocol instance pointer.
@param ModeNumber The mode number to be set.
@param This The EFI_GRAPHICS_OUTPUT_PROTOCOL instance.
@param ModeNumber Abstraction that defines the current video mode.
@retval EFI_SUCCESS Graphics mode was changed.
@retval EFI_DEVICE_ERROR The device had an error and could not complete
the request.
@retval EFI_UNSUPPORTED ModeNumber is not supported by this device.
@retval EFI_SUCCESS The graphics mode specified by ModeNumber was selected.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
@retval EFI_UNSUPPORTED ModeNumber is not supported by this device.
@retval EFI_OUT_OF_RESOURCES No resource available.
**/
EFI_STATUS
@ -293,9 +291,7 @@ ConSpliterGraphicsOutputSetMode (
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
if (EFI_ERROR (ReturnStatus) && FeaturePcdGet (PcdUgaConsumeSupport)) {
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
UgaDraw = Private->TextOutList[Index].UgaDraw;
if (UgaDraw != NULL) {
Status = UgaDraw->SetMode (
@ -671,7 +667,7 @@ DevNullGopSync (
Private->GraphicsOutput.Mode->Info->VerticalResolution,
0
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
} else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
return UgaDraw->Blt (
UgaDraw,
(EFI_UGA_PIXEL *) Private->GraphicsOutputBlt,
@ -689,19 +685,18 @@ DevNullGopSync (
}
}
/**
Return the current video mode information.
@param This Protocol instance pointer.
@param HorizontalResolution Current video horizontal resolution in pixels
@param VerticalResolution Current video vertical resolution in pixels
@param ColorDepth Current video color depth in bits per pixel
@param RefreshRate Current video refresh rate in Hz.
@param This The EFI_UGA_DRAW_PROTOCOL instance.
@param HorizontalResolution The size of video screen in pixels in the X dimension.
@param VerticalResolution The size of video screen in pixels in the Y dimension.
@param ColorDepth Number of bits per pixel, currently defined to be 32.
@param RefreshRate The refresh rate of the monitor in Hertz.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
**/
EFI_STATUS
@ -717,9 +712,9 @@ ConSpliterUgaDrawGetMode (
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
if ((HorizontalResolution == NULL) ||
(VerticalResolution == NULL) ||
(RefreshRate == NULL) ||
(ColorDepth == NULL)) {
(VerticalResolution == NULL) ||
(RefreshRate == NULL) ||
(ColorDepth == NULL)) {
return EFI_INVALID_PARAMETER;
}
//
@ -737,17 +732,17 @@ ConSpliterUgaDrawGetMode (
/**
Return the current video mode information.
Set the current video mode information.
@param This Protocol instance pointer.
@param HorizontalResolution Current video horizontal resolution in pixels
@param VerticalResolution Current video vertical resolution in pixels
@param ColorDepth Current video color depth in bits per pixel
@param RefreshRate Current video refresh rate in Hz.
@param This The EFI_UGA_DRAW_PROTOCOL instance.
@param HorizontalResolution The size of video screen in pixels in the X dimension.
@param VerticalResolution The size of video screen in pixels in the Y dimension.
@param ColorDepth Number of bits per pixel, currently defined to be 32.
@param RefreshRate The refresh rate of the monitor in Hertz.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_OUT_OF_RESOURCES Out of resources.
@retval EFI_SUCCESS Mode information returned.
@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS
@ -812,78 +807,80 @@ ConSpliterUgaDrawSetMode (
ReturnStatus = EFI_UNSUPPORTED;
if (FeaturePcdGet (PcdUgaConsumeSupport)) {
UgaDraw = Private->TextOutList[Index].UgaDraw;
if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
Status = UgaDraw->SetMode (
UgaDraw,
HorizontalResolution,
VerticalResolution,
ColorDepth,
RefreshRate
);
GraphicsOutput = Private->TextOutList[Index].GraphicsOutput;
if (GraphicsOutput != NULL) {
//
// Find corresponding ModeNumber of this GraphicsOutput instance
//
for (NumberIndex = 0; NumberIndex < GraphicsOutput->Mode->MaxMode; NumberIndex ++) {
Status = GraphicsOutput->QueryMode (GraphicsOutput, (UINT32) NumberIndex, &SizeOfInfo, &Info);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
return Status;
}
}
}
if (EFI_ERROR (ReturnStatus)) {
GraphicsOutput = Private->TextOutList[Index].GraphicsOutput;
if (GraphicsOutput != NULL) {
//
// Find corresponding ModeNumber of this GraphicsOutput instance
//
for (NumberIndex = 0; NumberIndex < GraphicsOutput->Mode->MaxMode; NumberIndex ++) {
Status = GraphicsOutput->QueryMode (GraphicsOutput, (UINT32) NumberIndex, &SizeOfInfo, &Info);
if (EFI_ERROR (Status)) {
return Status;
}
if ((Info->HorizontalResolution == HorizontalResolution) && (Info->VerticalResolution == VerticalResolution)) {
FreePool (Info);
break;
}
if ((Info->HorizontalResolution == HorizontalResolution) && (Info->VerticalResolution == VerticalResolution)) {
FreePool (Info);
break;
}
FreePool (Info);
}
Status = GraphicsOutput->SetMode (GraphicsOutput, (UINT32) NumberIndex);
Status = GraphicsOutput->SetMode (GraphicsOutput, (UINT32) NumberIndex);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
} else if (FeaturePcdGet (PcdUgaConsumeSupport)){
UgaDraw = Private->TextOutList[Index].UgaDraw;
if (UgaDraw != NULL) {
Status = UgaDraw->SetMode (
UgaDraw,
HorizontalResolution,
VerticalResolution,
ColorDepth,
RefreshRate
);
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}
}
}
}
}
return ReturnStatus;
}
/**
Blt a rectangle of pixels on the graphics screen.
The following table defines actions for BltOperations.
EfiBltVideoFill - Write data from the BltBuffer pixel (SourceX, SourceY)
directly to every pixel of the video display rectangle
(DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
Only one pixel will be used from the BltBuffer. Delta is NOT used.
EfiBltVideoToBltBuffer - Read data from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
the BltBuffer rectangle (DestinationX, DestinationY )
(DestinationX + Width, DestinationY + Height). If DestinationX or
DestinationY is not zero then Delta must be set to the length in bytes
of a row in the BltBuffer.
EfiBltBufferToVideo - Write data from the BltBuffer rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
not zero then Delta must be set to the length in bytes of a row in the
BltBuffer.
EfiBltVideoToVideo - Copy from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) .
to the video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
The BltBuffer and Delta are not used in this mode.
EfiUgaVideoFill:
Write data from the BltBuffer pixel (SourceX, SourceY)
directly to every pixel of the video display rectangle
(DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
Only one pixel will be used from the BltBuffer. Delta is NOT used.
EfiUgaVideoToBltBuffer:
Read data from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
the BltBuffer rectangle (DestinationX, DestinationY )
(DestinationX + Width, DestinationY + Height). If DestinationX or
DestinationY is not zero then Delta must be set to the length in bytes
of a row in the BltBuffer.
EfiUgaBltBufferToVideo:
Write data from the BltBuffer rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
not zero then Delta must be set to the length in bytes of a row in the
BltBuffer.
EfiUgaVideoToVideo:
Copy from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) .
to the video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
The BltBuffer and Delta are not used in this mode.
@param Private Protocol instance pointer.
@param Private Text Out Splitter pointer.
@param BltBuffer Buffer containing data to blit into video buffer.
This buffer has a size of
Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
@ -1020,51 +1017,53 @@ DevNullUgaBlt (
return EFI_SUCCESS;
}
/**
Blt a rectangle of pixels on the graphics screen.
The following table defines actions for BltOperations.
EfiUgaVideoFill - Write data from the BltBuffer pixel (SourceX, SourceY)
directly to every pixel of the video display rectangle
(DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
Only one pixel will be used from the BltBuffer. Delta is NOT used.
EfiUgaVideoToBltBuffer - Read data from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
the BltBuffer rectangle (DestinationX, DestinationY )
(DestinationX + Width, DestinationY + Height). If DestinationX or
DestinationY is not zero then Delta must be set to the length in bytes
of a row in the BltBuffer.
EfiUgaBltBufferToVideo - Write data from the BltBuffer rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
not zero then Delta must be set to the length in bytes of a row in the
BltBuffer.
EfiUgaVideoToVideo - Copy from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) .
to the video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
The BltBuffer and Delta are not used in this mode.
EfiUgaVideoFill:
Write data from the BltBuffer pixel (SourceX, SourceY)
directly to every pixel of the video display rectangle
(DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
Only one pixel will be used from the BltBuffer. Delta is NOT used.
EfiUgaVideoToBltBuffer:
Read data from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
the BltBuffer rectangle (DestinationX, DestinationY )
(DestinationX + Width, DestinationY + Height). If DestinationX or
DestinationY is not zero then Delta must be set to the length in bytes
of a row in the BltBuffer.
EfiUgaBltBufferToVideo:
Write data from the BltBuffer rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
not zero then Delta must be set to the length in bytes of a row in the
BltBuffer.
EfiUgaVideoToVideo:
Copy from the video display rectangle
(SourceX, SourceY) (SourceX + Width, SourceY + Height) .
to the video display rectangle (DestinationX, DestinationY)
(DestinationX + Width, DestinationY + Height).
The BltBuffer and Delta are not used in this mode.
@param This Protocol instance pointer.
@param BltBuffer Buffer containing data to blit into video buffer.
This buffer has a size of
Width*Height*sizeof(EFI_UGA_PIXEL)
@param BltOperation Operation to perform on BlitBuffer and video
memory
@param SourceX X coordinate of source for the BltBuffer.
@param SourceY Y coordinate of source for the BltBuffer.
@param DestinationX X coordinate of destination for the BltBuffer.
@param DestinationY Y coordinate of destination for the BltBuffer.
@param Width Width of rectangle in BltBuffer in pixels.
@param Height Hight of rectangle in BltBuffer in pixels.
@param Delta OPTIONAL.
@param This Protocol instance pointer.
@param BltBuffer Buffer containing data to blit into video buffer. This
buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL)
@param BltOperation Operation to perform on BlitBuffer and video memory
@param SourceX X coordinate of source for the BltBuffer.
@param SourceY Y coordinate of source for the BltBuffer.
@param DestinationX X coordinate of destination for the BltBuffer.
@param DestinationY Y coordinate of destination for the BltBuffer.
@param Width Width of rectangle in BltBuffer in pixels.
@param Height Hight of rectangle in BltBuffer in pixels.
@param Delta OPTIONAL
@retval EFI_SUCCESS The Blt operation completed.
@retval EFI_INVALID_PARAMETER BltOperation is not valid.
@retval EFI_DEVICE_ERROR A hardware error occured writting to the video
buffer.
@retval EFI_SUCCESS The Blt operation completed.
@retval EFI_INVALID_PARAMETER BltOperation is not valid.
@retval EFI_DEVICE_ERROR A hardware error occured writting to the video buffer.
**/
EFI_STATUS
@ -1183,20 +1182,7 @@ DevNullUgaSync (
IN EFI_UGA_DRAW_PROTOCOL *UgaDraw
)
{
if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
return UgaDraw->Blt (
UgaDraw,
Private->UgaBlt,
EfiUgaBltBufferToVideo,
0,
0,
0,
0,
Private->UgaHorizontalResolution,
Private->UgaVerticalResolution,
Private->UgaHorizontalResolution * sizeof (EFI_UGA_PIXEL)
);
} else if (GraphicsOutput != NULL) {
if (GraphicsOutput != NULL) {
return GraphicsOutput->Blt (
GraphicsOutput,
(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) Private->UgaBlt,
@ -1209,6 +1195,19 @@ DevNullUgaSync (
Private->UgaVerticalResolution,
0
);
} else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
return UgaDraw->Blt (
UgaDraw,
Private->UgaBlt,
EfiUgaBltBufferToVideo,
0,
0,
0,
0,
Private->UgaHorizontalResolution,
Private->UgaVerticalResolution,
Private->UgaHorizontalResolution * sizeof (EFI_UGA_PIXEL)
);
} else {
return EFI_UNSUPPORTED;
}
@ -1436,7 +1435,7 @@ DevNullTextOutOutputString (
/**
Sets the output device(s) to a specified mode.
@param Private Private data structure pointer.
@param Private Text Out Splitter pointer.
@param ModeNumber The mode number to set.
@retval EFI_SUCCESS The requested text mode was set.
@ -1513,7 +1512,7 @@ DevNullTextOutSetMode (
Clears the output device(s) display to the currently selected background
color.
@param Private Protocol instance pointer.
@param Private Text Out Splitter pointer.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete
@ -1561,7 +1560,7 @@ DevNullTextOutClearScreen (
/**
Sets the current coordinates of the cursor position.
@param Private Protocol instance pointer.
@param Private Text Out Splitter pointer.
@param Column
@param Row the position to set the cursor to. Must be
greater than or equal to zero and less than the
@ -1595,14 +1594,13 @@ DevNullTextOutSetCursorPosition (
/**
Implements SIMPLE_TEXT_OUTPUT.EnableCursor().
In this driver, the cursor cannot be hidden.
Set cursor visibility property.
@param Private Indicates the calling context.
@param Private Text Out Splitter pointer.
@param Visible If TRUE, the cursor is set to be visible, If
FALSE, the cursor is set to be invisible.
@retval EFI_SUCCESS The request is valid.
@retval EFI_SUCCESS Returns always.
**/
EFI_STATUS
@ -1621,7 +1619,7 @@ DevNullTextOutEnableCursor (
Take the DevNull TextOut device and update the Simple Text Out on every
UGA device.
@param Private Indicates the calling context.
@param Private Text Out Splitter pointer.
@retval EFI_SUCCESS The request is valid.
@retval other Return status of TextOut->OutputString ()