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Clean codes per ECC for ConSplitterDxe module. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5391 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff 2008-07-01 06:56:37 +00:00
parent 6dcf9abc6a
commit a4d608d1f7
4 changed files with 1259 additions and 1454 deletions
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92
MdeModulePkg/Universal/Console/ConSplitterDxe/ComponentName.c
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@ -1,7 +1,7 @@
/** @file /** @file
UEFI Component Name(2) protocol implementation for ConSplitter driver. UEFI Component Name(2) protocol implementation for ConSplitter driver.
Copyright (c) 2006, Intel Corporation. <BR> Copyright (c) 2006 - 2008, Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License 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 which accompanies this distribution. The full text of the license may be found at
@ -492,6 +492,51 @@ ConSplitterSimplePointerComponentNameGetControllerName (
); );
} }
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by an EFI Driver.
@param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL
instance.
@param ControllerHandle The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle 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.
@param Language A pointer to RFC3066 language identifier. This is
the language of the controller name that 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.
@param ControllerName 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.
@retval 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.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the
language specified by Language.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterAbsolutePointerComponentNameGetControllerName ( ConSplitterAbsolutePointerComponentNameGetControllerName (
@ -501,51 +546,6 @@ ConSplitterAbsolutePointerComponentNameGetControllerName (
IN CHAR8 *Language, IN CHAR8 *Language,
OUT CHAR16 **ControllerName OUT CHAR16 **ControllerName
) )
/*++
Routine Description:
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by an EFI Driver.
Arguments:
This - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
ControllerHandle - 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 - 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 - A pointer to RFC3066 language identifier.
This is the language of the controller name
that 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.
ControllerName - 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.
Returns:
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 not a valid EFI_HANDLE.
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.
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;

1726
MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.c
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File diff suppressed because it is too large Load Diff

291
MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.h
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@ -1,7 +1,7 @@
/** @file /** @file
Private data structures for the Console Splitter driver Private data structures for the Console Splitter driver
Copyright (c) 2006 - 2007 Intel Corporation. <BR> Copyright (c) 2006 - 2008 Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License 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 which accompanies this distribution. The full text of the license may be found at
@ -76,7 +76,7 @@ extern EFI_GUID gSimpleTextInExNotifyGuid;
#define CONSOLE_SPLITTER_MODES_ALLOC_UNIT 32 #define CONSOLE_SPLITTER_MODES_ALLOC_UNIT 32
#define MAX_STD_IN_PASSWORD 80 #define MAX_STD_IN_PASSWORD 80
#define VarConOutMode L"ConOutMode" #define VARCONOUTMODE L"ConOutMode"
typedef struct { typedef struct {
UINTN Column; UINTN Column;
@ -259,6 +259,15 @@ ConSplitterDriverEntry (
) )
; ;
/**
Construct the ConSplitter.
@param ConInPrivate A pointer to the TEXT_IN_SPLITTER_PRIVATE_DATA
structure.
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS EFI_STATUS
ConSplitterTextInConstructor ( ConSplitterTextInConstructor (
TEXT_IN_SPLITTER_PRIVATE_DATA *Private TEXT_IN_SPLITTER_PRIVATE_DATA *Private
@ -274,6 +283,17 @@ ConSplitterTextOutConstructor (
// //
// Driver Binding Functions // Driver Binding Functions
// //
/**
Console In Supported Check
@param This Pointer to protocol.
@param ControllerHandle Controller handle.
@param RemainingDevicePath Remaining device path.
@return EFI_STATUS
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterConInDriverBindingSupported ( ConSplitterConInDriverBindingSupported (
@ -283,6 +303,16 @@ ConSplitterConInDriverBindingSupported (
) )
; ;
/**
Standard Error Supported Check
@param This Pointer to protocol.
@param ControllerHandle Controller handle.
@param RemainingDevicePath Remaining device path.
@return EFI_STATUS
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterSimplePointerDriverBindingSupported ( ConSplitterSimplePointerDriverBindingSupported (
@ -292,6 +322,16 @@ ConSplitterSimplePointerDriverBindingSupported (
) )
; ;
/**
Console Out Supported Check
@param This Pointer to protocol.
@param ControllerHandle Controller handle.
@param RemainingDevicePath Remaining device path.
@return EFI_STATUS
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterConOutDriverBindingSupported ( ConSplitterConOutDriverBindingSupported (
@ -301,6 +341,16 @@ ConSplitterConOutDriverBindingSupported (
) )
; ;
/**
Standard Error Supported Check
@param This Pointer to protocol.
@param ControllerHandle Controller handle.
@param RemainingDevicePath Remaining device path.
@return EFI_STATUS
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterStdErrDriverBindingSupported ( ConSplitterStdErrDriverBindingSupported (
@ -436,51 +486,48 @@ ConSplitterAbsolutePointerDeleteDevice (
// Absolute Pointer protocol interfaces // Absolute Pointer protocol interfaces
// //
/**
Resets the pointer device hardware.
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning correctly and
could not be reset.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterAbsolutePointerReset ( ConSplitterAbsolutePointerReset (
IN EFI_ABSOLUTE_POINTER_PROTOCOL *This, IN EFI_ABSOLUTE_POINTER_PROTOCOL *This,
IN BOOLEAN ExtendedVerification IN BOOLEAN ExtendedVerification
) )
/*++
Routine Description:
Resets the pointer device hardware.
Arguments:
This - Protocol instance pointer.
ExtendedVerification - Driver may perform diagnostics on reset.
Returns:
EFI_SUCCESS - The device was reset.
EFI_DEVICE_ERROR - The device is not functioning correctly and could
not be reset.
--*/
; ;
/**
Retrieves the current state of a pointer device.
@param This Protocol instance pointer.
@param State A pointer to the state information on the
pointer device.
@retval EFI_SUCCESS The state of the pointer device was returned in
State..
@retval EFI_NOT_READY The state of the pointer device has not changed
since the last call to GetState().
@retval EFI_DEVICE_ERROR A device error occurred while attempting to
retrieve the pointer device's current state.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterAbsolutePointerGetState ( ConSplitterAbsolutePointerGetState (
IN EFI_ABSOLUTE_POINTER_PROTOCOL *This, IN EFI_ABSOLUTE_POINTER_PROTOCOL *This,
IN OUT EFI_ABSOLUTE_POINTER_STATE *State IN OUT EFI_ABSOLUTE_POINTER_STATE *State
) )
/*++
Routine Description:
Retrieves the current state of a pointer device.
Arguments:
This - Protocol instance pointer.
State - A pointer to the state information on the pointer device.
Returns:
EFI_SUCCESS - The state of the pointer device was returned in State..
EFI_NOT_READY - The state of the pointer device has not changed since the last call to
GetState().
EFI_DEVICE_ERROR - A device error occurred while attempting to retrieve the pointer
device's current state.
--*/
; ;
VOID VOID
@ -954,82 +1001,95 @@ ConSplitterTextInExDeleteDevice (
// Simple Text Input Ex protocol function prototypes // Simple Text Input Ex protocol function prototypes
// //
/**
Reset the input device and optionaly run diagnostics
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning properly and could
not be reset.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterTextInResetEx ( ConSplitterTextInResetEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN BOOLEAN ExtendedVerification IN BOOLEAN ExtendedVerification
) )
/*++
Routine Description:
Reset the input device and optionaly run diagnostics
Arguments:
This - Protocol instance pointer.
ExtendedVerification - Driver may perform diagnostics on reset.
Returns:
EFI_SUCCESS - The device was reset.
EFI_DEVICE_ERROR - The device is not functioning properly and could
not be reset.
--*/
; ;
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
@param This Protocol instance pointer.
@param KeyData A pointer to a buffer that is filled in with the
keystroke state data for the key that was
pressed.
@retval EFI_SUCCESS The keystroke information was returned.
@retval EFI_NOT_READY There was no keystroke data availiable.
@retval EFI_DEVICE_ERROR The keystroke information was not returned due
to hardware errors.
@retval EFI_INVALID_PARAMETER KeyData is NULL.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterTextInReadKeyStrokeEx ( ConSplitterTextInReadKeyStrokeEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
OUT EFI_KEY_DATA *KeyData OUT EFI_KEY_DATA *KeyData
) )
/*++
Routine Description:
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
Arguments:
This - Protocol instance pointer.
KeyData - A pointer to a buffer that is filled in with the keystroke
state data for the key that was pressed.
Returns:
EFI_SUCCESS - The keystroke information was returned.
EFI_NOT_READY - There was no keystroke data availiable.
EFI_DEVICE_ERROR - The keystroke information was not returned due to
hardware errors.
EFI_INVALID_PARAMETER - KeyData is NULL.
--*/
; ;
/**
Set certain state for the input device.
@param This Protocol instance pointer.
@param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
state for the input device.
@retval EFI_SUCCESS The device state was set successfully.
@retval EFI_DEVICE_ERROR The device is not functioning correctly and
could not have the setting adjusted.
@retval EFI_UNSUPPORTED The device does not have the ability to set its
state.
@retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterTextInSetState ( ConSplitterTextInSetState (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_KEY_TOGGLE_STATE *KeyToggleState IN EFI_KEY_TOGGLE_STATE *KeyToggleState
) )
/*++
Routine Description:
Set certain state for the input device.
Arguments:
This - Protocol instance pointer.
KeyToggleState - A pointer to the EFI_KEY_TOGGLE_STATE to set the
state for the input device.
Returns:
EFI_SUCCESS - The device state was set successfully.
EFI_DEVICE_ERROR - The device is not functioning correctly and could
not have the setting adjusted.
EFI_UNSUPPORTED - The device does not have the ability to set its state.
EFI_INVALID_PARAMETER - KeyToggleState is NULL.
--*/
; ;
/**
Register a notification function for a particular keystroke for the input device.
@param This Protocol instance pointer.
@param KeyData A pointer to a buffer that is filled in with the
keystroke information data for the key that was
pressed.
@param KeyNotificationFunction Points to the function to be called when the key
sequence is typed specified by KeyData.
@param NotifyHandle Points to the unique handle assigned to the
registered notification.
@retval EFI_SUCCESS The notification function was registered
successfully.
@retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data
structures.
@retval EFI_INVALID_PARAMETER KeyData or NotifyHandle is NULL.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterTextInRegisterKeyNotify ( ConSplitterTextInRegisterKeyNotify (
@ -1038,48 +1098,28 @@ ConSplitterTextInRegisterKeyNotify (
IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction, IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
OUT EFI_HANDLE *NotifyHandle OUT EFI_HANDLE *NotifyHandle
) )
/*++
Routine Description:
Register a notification function for a particular keystroke for the input device.
Arguments:
This - Protocol instance pointer.
KeyData - A pointer to a buffer that is filled in with the keystroke
information data for the key that was pressed.
KeyNotificationFunction - Points to the function to be called when the key
sequence is typed specified by KeyData.
NotifyHandle - Points to the unique handle assigned to the registered notification.
Returns:
EFI_SUCCESS - The notification function was registered successfully.
EFI_OUT_OF_RESOURCES - Unable to allocate resources for necesssary data structures.
EFI_INVALID_PARAMETER - KeyData or NotifyHandle is NULL.
--*/
; ;
/**
Remove a registered notification function from a particular keystroke.
@param This Protocol instance pointer.
@param NotificationHandle The handle of the notification function being
unregistered.
@retval EFI_SUCCESS The notification function was unregistered
successfully.
@retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.
@retval EFI_NOT_FOUND Can not find the matching entry in database.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSplitterTextInUnregisterKeyNotify ( ConSplitterTextInUnregisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_HANDLE NotificationHandle IN EFI_HANDLE NotificationHandle
) )
/*++
Routine Description:
Remove a registered notification function from a particular keystroke.
Arguments:
This - Protocol instance pointer.
NotificationHandle - The handle of the notification function being unregistered.
Returns:
EFI_SUCCESS - The notification function was unregistered successfully.
EFI_INVALID_PARAMETER - The NotificationHandle is invalid.
EFI_NOT_FOUND - Can not find the matching entry in database.
--*/
; ;
VOID VOID
EFIAPI EFIAPI
@ -1135,6 +1175,19 @@ ConSplitterSimplePointerGetState (
) )
; ;
/**
This event agregates all the events of the ConIn devices in the spliter.
If the ConIn is password locked then return.
If any events of physical ConIn devices are signaled, signal the ConIn
spliter event. This will cause the calling code to call
ConSplitterTextInReadKeyStroke ().
@param Event The Event assoicated with callback.
@param Context Context registered when Event was created.
@return None
**/
VOID VOID
EFIAPI EFIAPI
ConSplitterSimplePointerWaitForInput ( ConSplitterSimplePointerWaitForInput (

548
MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterGraphics.c
View File

@ -13,14 +13,30 @@ http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/ **/
#include "ConSplitter.h" #include "ConSplitter.h"
static CHAR16 mCrLfString[3] = { CHAR_CARRIAGE_RETURN, CHAR_LINEFEED, CHAR_NULL }; STATIC CHAR16 mCrLfString[3] = { CHAR_CARRIAGE_RETURN, CHAR_LINEFEED, CHAR_NULL };
/**
Return the current video mode information. Also returns info about existence
of Graphics Output devices or UGA Draw devices in system, and if the Std In device is locked. All the
arguments are optional and only returned if a non NULL pointer is passed in.
@param This Protocol instance pointer.
@param Mode Are we in text of grahics mode.
@param GopExists TRUE if GOP Spliter has found a GOP/UGA device
@param StdInLocked TRUE if StdIn device is keyboard locked
@retval EFI_SUCCESS Mode information returned.
@retval EFI_INVALID_PARAMETER Invalid parameters.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSpliterConsoleControlGetMode ( ConSpliterConsoleControlGetMode (
@ -29,24 +45,6 @@ ConSpliterConsoleControlGetMode (
OUT BOOLEAN *GopExists, OUT BOOLEAN *GopExists,
OUT BOOLEAN *StdInLocked OUT BOOLEAN *StdInLocked
) )
/*++
Routine Description:
Return the current video mode information. Also returns info about existence
of Graphics Output devices or UGA Draw devices in system, and if the Std In device is locked. All the
arguments are optional and only returned if a non NULL pointer is passed in.
Arguments:
This - Protocol instance pointer.
Mode - Are we in text of grahics mode.
GopExists - TRUE if GOP Spliter has found a GOP/UGA device
StdInLocked - TRUE if StdIn device is keyboard locked
Returns:
EFI_SUCCESS - Mode information returned.
EFI_INVALID_PARAMETER - Invalid parameters.
--*/
{ {
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private; TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index; UINTN Index;
@ -76,28 +74,25 @@ ConSpliterConsoleControlGetMode (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
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
@retval EFI_SUCCESS Mode information returned.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_UNSUPPORTED Operation unsupported.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSpliterConsoleControlSetMode ( ConSpliterConsoleControlSetMode (
IN EFI_CONSOLE_CONTROL_PROTOCOL *This, IN EFI_CONSOLE_CONTROL_PROTOCOL *This,
IN EFI_CONSOLE_CONTROL_SCREEN_MODE Mode IN EFI_CONSOLE_CONTROL_SCREEN_MODE Mode
) )
/*++
Routine Description:
Set the current mode to either text or graphics. Graphics is
for Quiet Boot.
Arguments:
This - Protocol instance pointer.
Mode - Mode to set the
Returns:
EFI_SUCCESS - Mode information returned.
EFI_INVALID_PARAMETER - Invalid parameter.
EFI_UNSUPPORTED - Operation unsupported.
--*/
{ {
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private; TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
UINTN Index; UINTN Index;
@ -154,6 +149,25 @@ ConSpliterConsoleControlSetMode (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Return the current video mode information.
@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.
@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.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSpliterGraphicsOutputQueryMode ( ConSpliterGraphicsOutputQueryMode (
@ -162,25 +176,6 @@ ConSpliterGraphicsOutputQueryMode (
OUT UINTN *SizeOfInfo, OUT UINTN *SizeOfInfo,
OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info
) )
/*++
Routine Description:
Return the current video mode information.
Arguments:
This - Protocol instance pointer.
ModeNumber - The mode number to return information on.
Info - Caller allocated buffer that returns information about ModeNumber.
SizeOfInfo - A pointer to the size, in bytes, of the Info buffer.
Returns:
EFI_SUCCESS - Mode information returned.
EFI_BUFFER_TOO_SMALL - The Info buffer was too small.
EFI_DEVICE_ERROR - A hardware error occurred trying to retrieve the video mode.
EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
EFI_INVALID_PARAMETER - One of the input args was NULL.
--*/
{ {
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private; TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
@ -210,28 +205,25 @@ ConSpliterGraphicsOutputQueryMode (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Graphics output protocol interface to set video mode
@param This Protocol instance pointer.
@param ModeNumber The mode number to be set.
@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.
**/
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
ConSpliterGraphicsOutputSetMode ( ConSpliterGraphicsOutputSetMode (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This, IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,
IN UINT32 ModeNumber IN UINT32 ModeNumber
) )
/*++
Routine Description:
Graphics output protocol interface to set video mode
Arguments:
This - Protocol instance pointer.
ModeNumber - The mode number to be set.
Returns:
EFI_SUCCESS - Graphics mode was changed.
EFI_DEVICE_ERROR - The device had an error and could not complete the request.
EFI_UNSUPPORTED - ModeNumber is not supported by this device.
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private; TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
@ -338,7 +330,6 @@ Routine Description:
return ReturnStatus; return ReturnStatus;
} }
STATIC
EFI_STATUS EFI_STATUS
DevNullGraphicsOutputBlt ( DevNullGraphicsOutputBlt (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private, IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
@ -393,7 +384,7 @@ DevNullGraphicsOutputBlt (
BltPtr = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) ((UINT8 *) BltBuffer + DestinationY * Delta + DestinationX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); BltPtr = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) ((UINT8 *) BltBuffer + DestinationY * Delta + DestinationX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
ScreenPtr = &Private->GraphicsOutputBlt[SourceY * HorizontalResolution + SourceX]; ScreenPtr = &Private->GraphicsOutputBlt[SourceY * HorizontalResolution + SourceX];
while (Height) { while (Height > 0) {
CopyMem (BltPtr, ScreenPtr, Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); CopyMem (BltPtr, ScreenPtr, Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
BltPtr = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) ((UINT8 *) BltPtr + Delta); BltPtr = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) ((UINT8 *) BltPtr + Delta);
ScreenPtr += HorizontalResolution; ScreenPtr += HorizontalResolution;
@ -456,24 +447,10 @@ DevNullGraphicsOutputBlt (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
EFI_STATUS
EFIAPI
ConSpliterGraphicsOutputBlt (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
IN UINTN SourceX,
IN UINTN SourceY,
IN UINTN DestinationX,
IN UINTN DestinationY,
IN UINTN Width,
IN UINTN Height,
IN UINTN Delta OPTIONAL
)
/*++
Routine Description: /**
The following table defines actions for BltOperations: The following table defines actions for BltOperations.
EfiBltVideoFill - Write data from the BltBuffer pixel (SourceX, SourceY) EfiBltVideoFill - Write data from the BltBuffer pixel (SourceX, SourceY)
directly to every pixel of the video display rectangle directly to every pixel of the video display rectangle
(DestinationX, DestinationY) (DestinationX, DestinationY)
@ -497,26 +474,40 @@ ConSpliterGraphicsOutputBlt (
(DestinationX + Width, DestinationY + Height). (DestinationX + Width, DestinationY + Height).
The BltBuffer and Delta are not used in this mode. The BltBuffer and Delta are not used in this mode.
Arguments: @param This Protocol instance pointer.
This - Protocol instance pointer. @param BltBuffer Buffer containing data to blit into video buffer.
BltBuffer - Buffer containing data to blit into video buffer. This This buffer has a size of
buffer has a size of Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL) Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
BltOperation - Operation to perform on BlitBuffer and video memory @param BltOperation Operation to perform on BlitBuffer and video
SourceX - X coordinate of source for the BltBuffer. memory
SourceY - Y coordinate of source for the BltBuffer. @param SourceX X coordinate of source for the BltBuffer.
DestinationX - X coordinate of destination for the BltBuffer. @param SourceY Y coordinate of source for the BltBuffer.
DestinationY - Y coordinate of destination for the BltBuffer. @param DestinationX X coordinate of destination for the BltBuffer.
Width - Width of rectangle in BltBuffer in pixels. @param DestinationY Y coordinate of destination for the BltBuffer.
Height - Hight of rectangle in BltBuffer in pixels. @param Width Width of rectangle in BltBuffer in pixels.
Delta - @param Height Hight of rectangle in BltBuffer in pixels. Delta
-
Returns: @retval EFI_SUCCESS The Blt operation completed.
EFI_SUCCESS - The Blt operation completed. @retval EFI_INVALID_PARAMETER BltOperation is not valid.
EFI_INVALID_PARAMETER - BltOperation is not valid. @retval EFI_DEVICE_ERROR A hardware error occured writting to the video
EFI_DEVICE_ERROR - A hardware error occured writting to the video
buffer. buffer.
--*/ **/
EFI_STATUS
EFIAPI
ConSpliterGraphicsOutputBlt (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
IN UINTN SourceX,
IN UINTN SourceY,
IN UINTN DestinationX,
IN UINTN DestinationY,
IN UINTN Width,
IN UINTN Height,
IN UINTN Delta OPTIONAL
)
{ {
EFI_STATUS Status; EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private; TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
@ -640,6 +631,21 @@ 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.
@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 EFI_STATUS
EFIAPI EFIAPI
ConSpliterUgaDrawGetMode ( ConSpliterUgaDrawGetMode (
@ -649,28 +655,13 @@ ConSpliterUgaDrawGetMode (
OUT UINT32 *ColorDepth, OUT UINT32 *ColorDepth,
OUT UINT32 *RefreshRate OUT UINT32 *RefreshRate
) )
/*++
Routine Description:
Return the current video mode information.
Arguments:
This - Protocol instance pointer.
HorizontalResolution - Current video horizontal resolution in pixels
VerticalResolution - Current video vertical resolution in pixels
ColorDepth - Current video color depth in bits per pixel
RefreshRate - Current video refresh rate in Hz.
Returns:
EFI_SUCCESS - Mode information returned.
EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
EFI_INVALID_PARAMETER - One of the input args was NULL.
--*/
{ {
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private; TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
if (!(HorizontalResolution && VerticalResolution && RefreshRate && ColorDepth)) { if ((HorizontalResolution == NULL) ||
(VerticalResolution == NULL) ||
(RefreshRate == NULL) ||
(ColorDepth == NULL)) {
return EFI_INVALID_PARAMETER; return EFI_INVALID_PARAMETER;
} }
// //
@ -686,6 +677,21 @@ ConSpliterUgaDrawGetMode (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
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.
@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 EFI_STATUS
EFIAPI EFIAPI
ConSpliterUgaDrawSetMode ( ConSpliterUgaDrawSetMode (
@ -695,24 +701,6 @@ ConSpliterUgaDrawSetMode (
IN UINT32 ColorDepth, IN UINT32 ColorDepth,
IN UINT32 RefreshRate IN UINT32 RefreshRate
) )
/*++
Routine Description:
Return the current video mode information.
Arguments:
This - Protocol instance pointer.
HorizontalResolution - Current video horizontal resolution in pixels
VerticalResolution - Current video vertical resolution in pixels
ColorDepth - Current video color depth in bits per pixel
RefreshRate - Current video refresh rate in Hz.
Returns:
EFI_SUCCESS - Mode information returned.
EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
EFI_OUT_OF_RESOURCES - Out of resources.
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private; TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
@ -865,7 +853,7 @@ DevNullUgaBlt (
BltPtr = (EFI_UGA_PIXEL *) ((UINT8 *) BltBuffer + DestinationY * Delta + DestinationX * sizeof (EFI_UGA_PIXEL)); BltPtr = (EFI_UGA_PIXEL *) ((UINT8 *) BltBuffer + DestinationY * Delta + DestinationX * sizeof (EFI_UGA_PIXEL));
ScreenPtr = &Private->UgaBlt[SourceY * HorizontalResolution + SourceX]; ScreenPtr = &Private->UgaBlt[SourceY * HorizontalResolution + SourceX];
while (Height) { while (Height > 0) {
CopyMem (BltPtr, ScreenPtr, Width * sizeof (EFI_UGA_PIXEL)); CopyMem (BltPtr, ScreenPtr, Width * sizeof (EFI_UGA_PIXEL));
BltPtr = (EFI_UGA_PIXEL *) ((UINT8 *) BltPtr + Delta); BltPtr = (EFI_UGA_PIXEL *) ((UINT8 *) BltPtr + Delta);
ScreenPtr += HorizontalResolution; ScreenPtr += HorizontalResolution;
@ -928,24 +916,10 @@ DevNullUgaBlt (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
EFI_STATUS
EFIAPI
ConSpliterUgaDrawBlt (
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 OPTIONAL
)
/*++
Routine Description: /**
The following table defines actions for BltOperations: The following table defines actions for BltOperations.
EfiUgaVideoFill - Write data from the BltBuffer pixel (SourceX, SourceY) EfiUgaVideoFill - Write data from the BltBuffer pixel (SourceX, SourceY)
directly to every pixel of the video display rectangle directly to every pixel of the video display rectangle
(DestinationX, DestinationY) (DestinationX, DestinationY)
@ -969,26 +943,40 @@ ConSpliterUgaDrawBlt (
(DestinationX + Width, DestinationY + Height). (DestinationX + Width, DestinationY + Height).
The BltBuffer and Delta are not used in this mode. The BltBuffer and Delta are not used in this mode.
Arguments: @param This Protocol instance pointer.
This - Protocol instance pointer. @param BltBuffer Buffer containing data to blit into video buffer.
BltBuffer - Buffer containing data to blit into video buffer. This This buffer has a size of
buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL) Width*Height*sizeof(EFI_UGA_PIXEL)
BltOperation - Operation to perform on BlitBuffer and video memory @param BltOperation Operation to perform on BlitBuffer and video
SourceX - X coordinate of source for the BltBuffer. memory
SourceY - Y coordinate of source for the BltBuffer. @param SourceX X coordinate of source for the BltBuffer.
DestinationX - X coordinate of destination for the BltBuffer. @param SourceY Y coordinate of source for the BltBuffer.
DestinationY - Y coordinate of destination for the BltBuffer. @param DestinationX X coordinate of destination for the BltBuffer.
Width - Width of rectangle in BltBuffer in pixels. @param DestinationY Y coordinate of destination for the BltBuffer.
Height - Hight of rectangle in BltBuffer in pixels. @param Width Width of rectangle in BltBuffer in pixels.
Delta - @param Height Hight of rectangle in BltBuffer in pixels. Delta
-
Returns: @retval EFI_SUCCESS The Blt operation completed.
EFI_SUCCESS - The Blt operation completed. @retval EFI_INVALID_PARAMETER BltOperation is not valid.
EFI_INVALID_PARAMETER - BltOperation is not valid. @retval EFI_DEVICE_ERROR A hardware error occured writting to the video
EFI_DEVICE_ERROR - A hardware error occured writting to the video
buffer. buffer.
--*/ **/
EFI_STATUS
EFIAPI
ConSpliterUgaDrawBlt (
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 OPTIONAL
)
{ {
EFI_STATUS Status; EFI_STATUS Status;
TEXT_OUT_SPLITTER_PRIVATE_DATA *Private; TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
@ -1109,34 +1097,32 @@ DevNullUgaSync (
} }
} }
/**
Write a Unicode string to the output device.
@param Private Pointer to the console output splitter's private
data. It indicates the calling context.
@param 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.
@retval EFI_SUCCESS The string was output to the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to
output the text.
@retval EFI_UNSUPPORTED The output device's mode is not currently in a
defined text mode.
@retval EFI_WARN_UNKNOWN_GLYPH This warning code indicates that some of the
characters in the Unicode string could not be
rendered and were skipped.
**/
EFI_STATUS EFI_STATUS
DevNullTextOutOutputString ( DevNullTextOutOutputString (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private, IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN CHAR16 *WString IN CHAR16 *WString
) )
/*++
Routine Description:
Write a Unicode string to the output device.
Arguments:
Private - Pointer to the console output splitter's private data. It
indicates the calling context.
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.
Returns:
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.
--*/
{ {
UINTN SizeScreen; UINTN SizeScreen;
UINTN SizeAttribute; UINTN SizeAttribute;
@ -1165,7 +1151,7 @@ DevNullTextOutOutputString (
CurrentWidth = 1; CurrentWidth = 1;
} }
while (*WString) { while (*WString != L'\0') {
if (*WString == CHAR_BACKSPACE) { if (*WString == CHAR_BACKSPACE) {
// //
@ -1193,7 +1179,7 @@ DevNullTextOutOutputString (
// //
InsertChar = CHAR_BACKSPACE; InsertChar = CHAR_BACKSPACE;
PStr = WString + 1; PStr = WString + 1;
while (*PStr) { while (*PStr != L'\0') {
TempChar = *PStr; TempChar = *PStr;
*PStr = InsertChar; *PStr = InsertChar;
InsertChar = TempChar; InsertChar = TempChar;
@ -1329,28 +1315,25 @@ DevNullTextOutOutputString (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Sets the output device(s) to a specified mode.
@param Private Private data structure pointer.
@param ModeNumber The mode number to set.
@retval EFI_SUCCESS The requested text mode was set.
@retval EFI_DEVICE_ERROR The device had an error and could not complete
the request.
@retval EFI_UNSUPPORTED The mode number was not valid.
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS EFI_STATUS
DevNullTextOutSetMode ( DevNullTextOutSetMode (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private, IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN UINTN ModeNumber IN UINTN ModeNumber
) )
/*++
Routine Description:
Sets the output device(s) to a specified mode.
Arguments:
Private - Private data structure pointer.
ModeNumber - The mode number to set.
Returns:
EFI_SUCCESS - The requested text mode was set.
EFI_DEVICE_ERROR - The device had an error and
could not complete the request.
EFI_UNSUPPORTED - The mode number was not valid.
EFI_OUT_OF_RESOURCES - Out of resources.
--*/
{ {
UINTN Size; UINTN Size;
INT32 CurrentMode; INT32 CurrentMode;
@ -1408,26 +1391,23 @@ DevNullTextOutSetMode (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Clears the output device(s) display to the currently selected background
color.
@param Private Protocol instance pointer.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete
the request.
@retval EFI_UNSUPPORTED The output device is not in a valid text mode.
**/
EFI_STATUS EFI_STATUS
DevNullTextOutClearScreen ( DevNullTextOutClearScreen (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private
) )
/*++
Routine Description:
Clears the output device(s) display to the currently selected background
color.
Arguments:
Private - Protocol instance pointer.
Returns:
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.
--*/
{ {
UINTN Row; UINTN Row;
UINTN Column; UINTN Column;
@ -1460,31 +1440,30 @@ DevNullTextOutClearScreen (
return DevNullTextOutEnableCursor (Private, TRUE); return DevNullTextOutEnableCursor (Private, TRUE);
} }
/**
Sets the current coordinates of the cursor position.
@param Private Protocol instance pointer.
@param Column
@param 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 ().
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete
the request.
@retval EFI_UNSUPPORTED The output device is not in a valid text mode, or
the cursor position is invalid for the current
mode.
**/
EFI_STATUS EFI_STATUS
DevNullTextOutSetCursorPosition ( DevNullTextOutSetCursorPosition (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private, IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN UINTN Column, IN UINTN Column,
IN UINTN Row IN UINTN Row
) )
/*++
Routine Description:
Sets the current coordinates of the cursor position
Arguments:
Private - Protocol instance pointer.
Column, 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 ().
Returns:
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.
--*/
{ {
// //
// No need to do extra check here as whether (Column, Row) is valid has // No need to do extra check here as whether (Column, Row) is valid has
@ -1497,53 +1476,44 @@ DevNullTextOutSetCursorPosition (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Implements SIMPLE_TEXT_OUTPUT.EnableCursor().
In this driver, the cursor cannot be hidden.
@param Private Indicates the calling context.
@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.
**/
EFI_STATUS EFI_STATUS
DevNullTextOutEnableCursor ( DevNullTextOutEnableCursor (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private, IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
IN BOOLEAN Visible IN BOOLEAN Visible
) )
/*++
Routine Description:
Implements SIMPLE_TEXT_OUTPUT.EnableCursor().
In this driver, the cursor cannot be hidden.
Arguments:
Private - Indicates the calling context.
Visible - If TRUE, the cursor is set to be visible, If FALSE, the cursor
is set to be invisible.
Returns:
EFI_SUCCESS - The request is valid.
--*/
{ {
Private->TextOutMode.CursorVisible = Visible; Private->TextOutMode.CursorVisible = Visible;
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Take the DevNull TextOut device and update the Simple Text Out on every
UGA device.
@param Private Indicates the calling context.
@retval EFI_SUCCESS The request is valid.
@retval other Return status of TextOut->OutputString ()
**/
EFI_STATUS EFI_STATUS
DevNullSyncStdOut ( DevNullSyncStdOut (
IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private
) )
/*++
Routine Description:
Take the DevNull TextOut device and update the Simple Text Out on every
UGA device.
Arguments:
Private - Indicates the calling context.
Returns:
EFI_SUCCESS - The request is valid.
other - Return status of TextOut->OutputString ()
--*/
{ {
EFI_STATUS Status; EFI_STATUS Status;
EFI_STATUS ReturnStatus; EFI_STATUS ReturnStatus;
@ -1607,7 +1577,7 @@ DevNullSyncStdOut (
Column = 0; Column = 0;
while (Column < MaxColumn) { while (Column < MaxColumn) {
if (Screen[Column]) { if (Screen[Column] > 0) {
CurrentAttribute = Attributes[Column]; CurrentAttribute = Attributes[Column];
CurrentColumn = Column; CurrentColumn = Column;
ScreenStart = &Screen[Column]; ScreenStart = &Screen[Column];
@ -1625,7 +1595,7 @@ DevNullSyncStdOut (
*BufferTail = *Str; *BufferTail = *Str;
BufferTail++; BufferTail++;
if (Attributes[Column] & EFI_WIDE_ATTRIBUTE) { if ((Attributes[Column] & EFI_WIDE_ATTRIBUTE) != 0) {
Str++; Str++;
Column++; Column++;
} }