#include <Uefi.h>
#include <Protocol/SimpleTextOut.h>
#include <Protocol/GraphicsOutput.h>
#include <Protocol/UgaDraw.h>
#include <Protocol/DevicePath.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/HiiLib.h>
#include <Library/BaseLib.h>
#include <Library/PcdLib.h>
#include <Guid/MdeModuleHii.h>
#include <Protocol/HiiFont.h>
#include <Protocol/HiiDatabase.h>

Data Structures
union	GLYPH_UNION

struct	GRAPHICS_CONSOLE_MODE_DATA

struct	GRAPHICS_CONSOLE_DEV

Macros
#define	GRAPHICS_CONSOLE_DEV_SIGNATURE SIGNATURE_32 ('g', 's', 't', 'o')

#define	GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS(a) CR (a, GRAPHICS_CONSOLE_DEV, SimpleTextOutput, GRAPHICS_CONSOLE_DEV_SIGNATURE)

Functions
EFI_STATUS EFIAPI	GraphicsConsoleComponentNameGetDriverName (IN EFI_COMPONENT_NAME_PROTOCOL This, IN CHAR8 Language, OUT CHAR16 **DriverName)

EFI_STATUS EFIAPI	GraphicsConsoleComponentNameGetControllerName (IN EFI_COMPONENT_NAME_PROTOCOL This, IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE ChildHandle OPTIONAL, IN CHAR8 Language, OUT CHAR16 **ControllerName)

EFI_STATUS EFIAPI	GraphicsConsoleConOutReset (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This, IN BOOLEAN ExtendedVerification)

EFI_STATUS EFIAPI	GraphicsConsoleConOutOutputString (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL This, IN CHAR16 WString)

EFI_STATUS EFIAPI	GraphicsConsoleConOutTestString (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL This, IN CHAR16 WString)

EFI_STATUS EFIAPI	GraphicsConsoleConOutQueryMode (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL This, IN UINTN ModeNumber, OUT UINTN Columns, OUT UINTN *Rows)

EFI_STATUS EFIAPI	GraphicsConsoleConOutSetMode (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This, IN UINTN ModeNumber)

EFI_STATUS EFIAPI	GraphicsConsoleConOutSetAttribute (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This, IN UINTN Attribute)

EFI_STATUS EFIAPI	GraphicsConsoleConOutClearScreen (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This)

EFI_STATUS EFIAPI	GraphicsConsoleConOutSetCursorPosition (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This, IN UINTN Column, IN UINTN Row)

EFI_STATUS EFIAPI	GraphicsConsoleConOutEnableCursor (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This, IN BOOLEAN Visible)

EFI_STATUS EFIAPI	GraphicsConsoleControllerDriverSupported (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath)

EFI_STATUS EFIAPI	GraphicsConsoleControllerDriverStart (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath)

EFI_STATUS EFIAPI	GraphicsConsoleControllerDriverStop (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Controller, IN UINTN NumberOfChildren, IN EFI_HANDLE ChildHandleBuffer)

EFI_STATUS	EfiLocateHiiProtocol (VOID)

EFI_STATUS	GetTextColors (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL This, OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground, OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Background)

EFI_STATUS	DrawUnicodeWeightAtCursorN (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL This, IN CHAR16 UnicodeWeight, IN UINTN Count)

EFI_STATUS	FlushCursor (IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This)

EFI_STATUS	CheckModeSupported (EFI_GRAPHICS_OUTPUT_PROTOCOL GraphicsOutput, IN UINT32 HorizontalResolution, IN UINT32 VerticalResolution, OUT UINT32 CurrentModeNumber)

Variables
EFI_COMPONENT_NAME_PROTOCOL	gGraphicsConsoleComponentName

EFI_COMPONENT_NAME2_PROTOCOL	gGraphicsConsoleComponentName2

EFI_DRIVER_BINDING_PROTOCOL	gGraphicsConsoleDriverBinding

EFI_NARROW_GLYPH	gUsStdNarrowGlyphData []

UINT32	mNarrowFontSize

Detailed Description

Header file for GraphicsConsole driver.

Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file GraphicsConsole.h.

Macro Definition Documentation

◆ GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS

#define GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS ( a ) CR (a, GRAPHICS_CONSOLE_DEV, SimpleTextOutput, GRAPHICS_CONSOLE_DEV_SIGNATURE)

Definition at line 69 of file GraphicsConsole.h.

◆ GRAPHICS_CONSOLE_DEV_SIGNATURE

#define GRAPHICS_CONSOLE_DEV_SIGNATURE SIGNATURE_32 ('g', 's', 't', 'o')

Definition at line 47 of file GraphicsConsole.h.

Function Documentation

◆ CheckModeSupported()

EFI_STATUS CheckModeSupported	(	EFI_GRAPHICS_OUTPUT_PROTOCOL *	GraphicsOutput,
		IN UINT32	HorizontalResolution,
		IN UINT32	VerticalResolution,
		OUT UINT32 *	CurrentModeNumber
	)

Check if the current specific mode supported the user defined resolution for the Graphics Console device based on Graphics Output Protocol.

If yes, set the graphic device's current mode to this specific mode.

Parameters

GraphicsOutput	Graphics Output Protocol instance pointer.
HorizontalResolution	User defined horizontal resolution
VerticalResolution	User defined vertical resolution.
CurrentModeNumber	Current specific mode to be check.

Return values

EFI_SUCCESS	The mode is supported.
EFI_UNSUPPORTED	The specific mode is out of range of graphics device supported.
other	The specific mode does not support user defined resolution or failed to set the current mode to the specific mode on graphics device.

Definition at line 784 of file GraphicsConsole.c.

◆ DrawUnicodeWeightAtCursorN()

EFI_STATUS DrawUnicodeWeightAtCursorN	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN CHAR16 *	UnicodeWeight,
		IN UINTN	Count
	)

Draw Unicode string on the Graphics Console device's screen.

Parameters

This	Protocol instance pointer.
UnicodeWeight	One Unicode string to be displayed.
Count	The count of Unicode string.

Return values

EFI_OUT_OF_RESOURCES	If no memory resource to use.
EFI_UNSUPPORTED	If no Graphics Output protocol and UGA Draw protocol exist.
EFI_SUCCESS	Drawing Unicode string implemented successfully.

Definition at line 1773 of file GraphicsConsole.c.

◆ EfiLocateHiiProtocol()

EFI_STATUS EfiLocateHiiProtocol ( VOID )

Locate HII Database protocol and HII Font protocol.

Return values

EFI_SUCCESS HII Database protocol and HII Font protocol are located successfully.

Returns: other Failed to locate HII Database protocol or HII Font protocol.

Definition at line 850 of file GraphicsConsole.c.

◆ FlushCursor()

EFI_STATUS FlushCursor ( IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL * This )

Flush the cursor on the screen.

If CursorVisible is FALSE, nothing to do and return directly. If CursorVisible is TRUE, i) If the cursor shows on screen, it will be erased. ii) If the cursor does not show on screen, it will be shown.

Parameters

This	Protocol instance pointer.

Return values

EFI_SUCCESS The cursor is erased successfully.

Definition at line 1928 of file GraphicsConsole.c.

◆ GetTextColors()

EFI_STATUS GetTextColors	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *	Foreground,
		OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *	Background
	)

Gets Graphics Console device's foreground color and background color.

Parameters

This	Protocol instance pointer.
Foreground	Returned text foreground color.
Background	Returned text background color.

Return values

EFI_SUCCESS It returned always.

Definition at line 1743 of file GraphicsConsole.c.

◆ GraphicsConsoleComponentNameGetControllerName()

EFI_STATUS EFIAPI GraphicsConsoleComponentNameGetControllerName	(	IN EFI_COMPONENT_NAME_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN EFI_HANDLE ChildHandle	OPTIONAL,
		IN CHAR8 *	Language,
		OUT CHAR16 **	ControllerName
	)

Retrieves a Unicode string that is the user readable name of the controller that is being managed by a driver.

This function retrieves the user readable name of the controller specified by ControllerHandle and ChildHandle in the form of a Unicode string. If the driver specified by This has a user readable name in the language specified by Language, then a pointer to the controller name is returned in ControllerName, and EFI_SUCCESS is returned. If the driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle, then EFI_UNSUPPORTED is returned. If the driver specified by This does not support the language specified by Language, then EFI_UNSUPPORTED is returned.

Parameters

This[in]	A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or EFI_COMPONENT_NAME_PROTOCOL instance.
ControllerHandle[in]	The handle of a controller that the driver specified by This is managing. This handle specifies the controller whose name is to be returned.
ChildHandle[in]	The handle of the child controller to retrieve the name of. This is an optional parameter that may be NULL. It will be NULL for device drivers. It will also be NULL for a bus drivers that wish to retrieve the name of the bus controller. It will not be NULL for a bus driver that wishes to retrieve the name of a child controller.
Language[in]	A pointer to a Null-terminated ASCII string array indicating the language. This is the language of the driver name that the caller is requesting, and it must match one of the languages specified in SupportedLanguages. The number of languages supported by a driver is up to the driver writer. Language is specified in RFC 4646 or ISO 639-2 language code format.
ControllerName[out]	A pointer to the Unicode string to return. This Unicode string is the name of the controller specified by ControllerHandle and ChildHandle in the language specified by Language from the point of view of the driver specified by This.

Return values

EFI_SUCCESS	The Unicode string for the user readable name in the language specified by Language for the driver specified by This was returned in DriverName.
EFI_INVALID_PARAMETER	ControllerHandle is NULL.
EFI_INVALID_PARAMETER	ChildHandle is not NULL and it is not a valid EFI_HANDLE.
EFI_INVALID_PARAMETER	Language is NULL.
EFI_INVALID_PARAMETER	ControllerName is NULL.
EFI_UNSUPPORTED	The driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle.
EFI_UNSUPPORTED	The driver specified by This does not support the language specified by Language.

Definition at line 166 of file ComponentName.c.

◆ GraphicsConsoleComponentNameGetDriverName()

EFI_STATUS EFIAPI GraphicsConsoleComponentNameGetDriverName	(	IN EFI_COMPONENT_NAME_PROTOCOL *	This,
		IN CHAR8 *	Language,
		OUT CHAR16 **	DriverName
	)

Retrieves a Unicode string that is the user readable name of the driver.

This function retrieves the user readable name of a driver in the form of a Unicode string. If the driver specified by This has a user readable name in the language specified by Language, then a pointer to the driver name is returned in DriverName, and EFI_SUCCESS is returned. If the driver specified by This does not support the language specified by Language, then EFI_UNSUPPORTED is returned.

Parameters

This[in]	A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or EFI_COMPONENT_NAME_PROTOCOL instance.
Language[in]	A pointer to a Null-terminated ASCII string array indicating the language. This is the language of the driver name that the caller is requesting, and it must match one of the languages specified in SupportedLanguages. The number of languages supported by a driver is up to the driver writer. Language is specified in RFC 4646 or ISO 639-2 language code format.
DriverName[out]	A pointer to the Unicode string to return. This Unicode string is the name of the driver specified by This in the language specified by Language.

Return values

EFI_SUCCESS	The Unicode string for the Driver specified by This and the language specified by Language was returned in DriverName.
EFI_INVALID_PARAMETER	Language is NULL.
EFI_INVALID_PARAMETER	DriverName is NULL.
EFI_UNSUPPORTED	The driver specified by This does not support the language specified by Language.

Definition at line 81 of file ComponentName.c.

◆ GraphicsConsoleConOutClearScreen()

EFI_STATUS EFIAPI GraphicsConsoleConOutClearScreen ( IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL * This )

Clears the output device(s) display to the currently selected background color.

Implements SIMPLE_TEXT_OUTPUT.ClearScreen().

Parameters

This	Protocol instance pointer.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_DEVICE_ERROR	The device had an error and could not complete the request.
EFI_UNSUPPORTED	The output device is not in a valid text mode.

Definition at line 1553 of file GraphicsConsole.c.

◆ GraphicsConsoleConOutEnableCursor()

EFI_STATUS EFIAPI GraphicsConsoleConOutEnableCursor	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN BOOLEAN	Visible
	)

Makes the cursor visible or invisible.

Implements SIMPLE_TEXT_OUTPUT.EnableCursor().

Parameters

This	Protocol instance pointer.
Visible	If TRUE, the cursor is set to be visible, If FALSE, the cursor is set to be invisible.

Return values

EFI_SUCCESS The operation completed successfully.

Makes the cursor visible or invisible.

Implements SIMPLE_TEXT_OUTPUT.EnableCursor().

Parameters

This	Protocol instance pointer.
Visible	If TRUE, the cursor is set to be visible, If FALSE, the cursor is set to be invisible.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_UNSUPPORTED	The output device's mode is not currently in a defined text mode.

Definition at line 1706 of file GraphicsConsole.c.

◆ GraphicsConsoleConOutOutputString()

EFI_STATUS EFIAPI GraphicsConsoleConOutOutputString	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN CHAR16 *	WString
	)

Write a Unicode string to the output device.

Implements SIMPLE_TEXT_OUTPUT.OutputString(). The Unicode string will be converted to Glyphs and will be sent to the Graphics Console.

Parameters

This	Protocol instance pointer.
WString	The NULL-terminated Unicode string to be displayed on the output device(s). All output devices must also support the Unicode drawing defined in this file.

Return values

EFI_SUCCESS	The string was output to the device.
EFI_DEVICE_ERROR	The device reported an error while attempting to output the text.
EFI_UNSUPPORTED	The output device's mode is not currently in a defined text mode.
EFI_WARN_UNKNOWN_GLYPH	This warning code indicates that some of the characters in the Unicode string could not be rendered and were skipped.

Definition at line 929 of file GraphicsConsole.c.

◆ GraphicsConsoleConOutQueryMode()

EFI_STATUS EFIAPI GraphicsConsoleConOutQueryMode	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN UINTN	ModeNumber,
		OUT UINTN *	Columns,
		OUT UINTN *	Rows
	)

Returns information for an available text mode that the output device(s) supports

Implements SIMPLE_TEXT_OUTPUT.QueryMode(). It returns information for an available text mode that the Graphics Console supports. In this driver,we only support text mode 80x25, which is defined as mode 0.

Parameters

This	Protocol instance pointer.
ModeNumber	The mode number to return information on.
Columns	The returned columns of the requested mode.
Rows	The returned rows of the requested mode.

Return values

EFI_SUCCESS	The requested mode information is returned.
EFI_UNSUPPORTED	The mode number is not valid.

Returns information for an available text mode that the output device(s) supports

Implements SIMPLE_TEXT_OUTPUT.QueryMode(). It returnes information for an available text mode that the Graphics Console supports. In this driver,we only support text mode 80x25, which is defined as mode 0.

Parameters

This	Protocol instance pointer.
ModeNumber	The mode number to return information on.
Columns	The returned columns of the requested mode.
Rows	The returned rows of the requested mode.

Return values

EFI_SUCCESS	The requested mode information is returned.
EFI_UNSUPPORTED	The mode number is not valid.

Definition at line 1264 of file GraphicsConsole.c.

◆ GraphicsConsoleConOutReset()

EFI_STATUS EFIAPI GraphicsConsoleConOutReset	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN BOOLEAN	ExtendedVerification
	)

Reset the text output device hardware and optionally run diagnostics.

Implements SIMPLE_TEXT_OUTPUT.Reset(). If ExtendedVerification is TRUE, then perform dependent Graphics Console device reset, and set display mode to mode 0. If ExtendedVerification is FALSE, only set display mode to mode 0.

Parameters

This	Protocol instance pointer.
ExtendedVerification	Indicates that the driver may perform a more exhaustive verification operation of the device during reset.

Return values

EFI_SUCCESS	The text output device was reset.
EFI_DEVICE_ERROR	The text output device is not functioning correctly and could not be reset.

Definition at line 889 of file GraphicsConsole.c.

◆ GraphicsConsoleConOutSetAttribute()

EFI_STATUS EFIAPI GraphicsConsoleConOutSetAttribute	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN UINTN	Attribute
	)

Sets the background and foreground colors for the OutputString () and ClearScreen () functions.

Implements SIMPLE_TEXT_OUTPUT.SetAttribute().

Parameters

This	Protocol instance pointer.
Attribute	The attribute to set. Bits 0..3 are the foreground color, and bits 4..6 are the background color. All other bits are undefined and must be zero.

Return values

EFI_SUCCESS	The requested attribute is set.
EFI_DEVICE_ERROR	The requested attribute cannot be set due to Graphics Console port error.
EFI_UNSUPPORTED	The attribute requested is not defined.

Definition at line 1510 of file GraphicsConsole.c.

◆ GraphicsConsoleConOutSetCursorPosition()

EFI_STATUS EFIAPI GraphicsConsoleConOutSetCursorPosition	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN UINTN	Column,
		IN UINTN	Row
	)

Sets the current coordinates of the cursor position.

Implements SIMPLE_TEXT_OUTPUT.SetCursorPosition().

Parameters

This	Protocol instance pointer.
Column	The position to set the cursor to. Must be greater than or equal to zero and less than the number of columns and rows by QueryMode ().
Row	The position to set the cursor to. Must be greater than or equal to zero and less than the number of columns and rows by QueryMode ().

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_DEVICE_ERROR	The device had an error and could not complete the request.
EFI_UNSUPPORTED	The output device is not in a valid text mode, or the cursor position is invalid for the current mode.

Definition at line 1642 of file GraphicsConsole.c.

◆ GraphicsConsoleConOutSetMode()

EFI_STATUS EFIAPI GraphicsConsoleConOutSetMode	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN UINTN	ModeNumber
	)

Sets the output device(s) to a specified mode.

Implements SIMPLE_TEXT_OUTPUT.SetMode(). Set the Graphics Console to a specified mode. In this driver, we only support mode 0.

Parameters

This	Protocol instance pointer.
ModeNumber	The text mode to set.

Return values

EFI_SUCCESS	The requested text mode is set.
EFI_DEVICE_ERROR	The requested text mode cannot be set because of Graphics Console device error.
EFI_UNSUPPORTED	The text mode number is not valid.

Definition at line 1314 of file GraphicsConsole.c.

◆ GraphicsConsoleConOutTestString()

EFI_STATUS EFIAPI GraphicsConsoleConOutTestString	(	IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *	This,
		IN CHAR16 *	WString
	)

Verifies that all characters in a Unicode string can be output to the target device.

Implements SIMPLE_TEXT_OUTPUT.TestString(). If one of the characters in the *Wstring is neither valid valid Unicode drawing characters, not ASCII code, then this function will return EFI_UNSUPPORTED

Parameters

This	Protocol instance pointer.
WString	The NULL-terminated Unicode string to be examined for the output device(s).

Return values

EFI_SUCCESS	The device(s) are capable of rendering the output string.
EFI_UNSUPPORTED	Some of the characters in the Unicode string cannot be rendered by one or more of the output devices mapped by the EFI handle.

Definition at line 1209 of file GraphicsConsole.c.

◆ GraphicsConsoleControllerDriverStart()

EFI_STATUS EFIAPI GraphicsConsoleControllerDriverStart	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Controller,
		IN EFI_DEVICE_PATH_PROTOCOL *	RemainingDevicePath
	)

Start this driver on Controller by opening Graphics Output protocol or UGA Draw protocol, and installing Simple Text Out protocol on Controller. (UGA Draw protocol could be skipped if PcdUgaConsumeSupport is set to FALSE.)

Parameters

This	Protocol instance pointer.
Controller	Handle of device to bind driver to
RemainingDevicePath	Optional parameter use to pick a specific child device to start.

Return values

EFI_SUCCESS	This driver is added to Controller.
other	This driver does not support this device.

Definition at line 387 of file GraphicsConsole.c.

◆ GraphicsConsoleControllerDriverStop()

EFI_STATUS EFIAPI GraphicsConsoleControllerDriverStop	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Controller,
		IN UINTN	NumberOfChildren,
		IN EFI_HANDLE *	ChildHandleBuffer
	)

Stop this driver on Controller by removing Simple Text Out protocol and closing the Graphics Output Protocol or UGA Draw protocol on Controller. (UGA Draw protocol could be skipped if PcdUgaConsumeSupport is set to FALSE.)

Parameters

This	Protocol instance pointer.
Controller	Handle of device to stop driver on
NumberOfChildren	Number of Handles in ChildHandleBuffer. If number of children is zero stop the entire bus driver.
ChildHandleBuffer	List of Child Handles to Stop.

Return values

EFI_SUCCESS	This driver is removed Controller.
EFI_NOT_STARTED	Simple Text Out protocol could not be found the Controller.
other	This driver was not removed from this device.

Definition at line 696 of file GraphicsConsole.c.

◆ GraphicsConsoleControllerDriverSupported()

EFI_STATUS EFIAPI GraphicsConsoleControllerDriverSupported	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Controller,
		IN EFI_DEVICE_PATH_PROTOCOL *	RemainingDevicePath
	)

Test to see if Graphics Console could be supported on the Controller.

Graphics Console could be supported if Graphics Output Protocol or UGADraw Protocol exists on the Controller. (UGA Draw Protocol could be skipped if PcdUgaConsumeSupport is set to FALSE.)

Parameters

This	Protocol instance pointer.
Controller	Handle of device to test.
RemainingDevicePath	Optional parameter use to pick a specific child device to start.

Return values

EFI_SUCCESS	This driver supports this device.
other	This driver does not support this device.

Test to see if Graphics Console could be supported on the Controller.

Graphics Console could be supported if Graphics Output Protocol or UGA Draw Protocol exists on the Controller. (UGA Draw Protocol could be skipped if PcdUgaConsumeSupport is set to FALSE.)

Parameters

This	Protocol instance pointer.
Controller	Handle of device to test.
RemainingDevicePath	Optional parameter use to pick a specific child device to start.

Return values

EFI_SUCCESS	This driver supports this device.
other	This driver does not support this device.

Definition at line 122 of file GraphicsConsole.c.

Variable Documentation

◆ gGraphicsConsoleComponentName

EFI_COMPONENT_NAME_PROTOCOL gGraphicsConsoleComponentName

extern

Definition at line 14 of file ComponentName.c.

◆ gGraphicsConsoleComponentName2

EFI_COMPONENT_NAME2_PROTOCOL gGraphicsConsoleComponentName2

extern

Definition at line 23 of file ComponentName.c.

◆ gGraphicsConsoleDriverBinding

EFI_DRIVER_BINDING_PROTOCOL gGraphicsConsoleDriverBinding

extern

Definition at line 95 of file GraphicsConsole.c.

◆ gUsStdNarrowGlyphData

EFI_NARROW_GLYPH gUsStdNarrowGlyphData[]

extern

Definition at line 11 of file LaffStd.c.

◆ mNarrowFontSize

UINT32 mNarrowFontSize

extern

Definition at line 510 of file LaffStd.c.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS

◆ GRAPHICS_CONSOLE_DEV_SIGNATURE

Function Documentation

◆ CheckModeSupported()

◆ DrawUnicodeWeightAtCursorN()

◆ EfiLocateHiiProtocol()

◆ FlushCursor()

◆ GetTextColors()

◆ GraphicsConsoleComponentNameGetControllerName()

◆ GraphicsConsoleComponentNameGetDriverName()

◆ GraphicsConsoleConOutClearScreen()

◆ GraphicsConsoleConOutEnableCursor()

◆ GraphicsConsoleConOutOutputString()

◆ GraphicsConsoleConOutQueryMode()

◆ GraphicsConsoleConOutReset()

◆ GraphicsConsoleConOutSetAttribute()

◆ GraphicsConsoleConOutSetCursorPosition()

◆ GraphicsConsoleConOutSetMode()

◆ GraphicsConsoleConOutTestString()

◆ GraphicsConsoleControllerDriverStart()

◆ GraphicsConsoleControllerDriverStop()

◆ GraphicsConsoleControllerDriverSupported()

Variable Documentation

◆ gGraphicsConsoleComponentName

◆ gGraphicsConsoleComponentName2

◆ gGraphicsConsoleDriverBinding

◆ gUsStdNarrowGlyphData

◆ mNarrowFontSize