2 Console Splitter Driver. Any Handle that attatched console I/O protocols
3 (Console In device, Console Out device, Console Error device, Simple Pointer
4 protocol, Absolute Pointer protocol) can be bound by this driver.
6 So far it works like any other driver by opening a SimpleTextIn and/or
7 SimpleTextOut protocol with EFI_OPEN_PROTOCOL_BY_DRIVER attributes. The big
8 difference is this driver does not layer a protocol on the passed in
9 handle, or construct a child handle like a standard device or bus driver.
10 This driver produces three virtual handles as children, one for console input
11 splitter, one for console output splitter and one for error output splitter.
12 These 3 virtual handles would be installed on gST.
14 Each virtual handle, that supports the Console I/O protocol, will be produced
15 in the driver entry point. The virtual handle are added on driver entry and
16 never removed. Such design ensures sytem function well during none console
19 Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
20 This program and the accompanying materials
21 are licensed and made available under the terms and conditions of the BSD License
22 which accompanies this distribution. The full text of the license may be found at
23 http://opensource.org/licenses/bsd-license.php
25 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
26 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
30 #include "ConSplitter.h"
33 // Identify if ConIn is connected in PcdConInConnectOnDemand enabled mode.
34 // default not connect
36 BOOLEAN mConInIsConnect
= FALSE
;
39 // Text In Splitter Private Data template
41 GLOBAL_REMOVE_IF_UNREFERENCED TEXT_IN_SPLITTER_PRIVATE_DATA mConIn
= {
42 TEXT_IN_SPLITTER_PRIVATE_DATA_SIGNATURE
,
46 ConSplitterTextInReset
,
47 ConSplitterTextInReadKeyStroke
,
51 (EFI_SIMPLE_TEXT_INPUT_PROTOCOL
**) NULL
,
55 ConSplitterTextInResetEx
,
56 ConSplitterTextInReadKeyStrokeEx
,
58 ConSplitterTextInSetState
,
59 ConSplitterTextInRegisterKeyNotify
,
60 ConSplitterTextInUnregisterKeyNotify
63 (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
**) NULL
,
71 ConSplitterSimplePointerReset
,
72 ConSplitterSimplePointerGetState
,
74 (EFI_SIMPLE_POINTER_MODE
*) NULL
84 (EFI_SIMPLE_POINTER_PROTOCOL
**) NULL
,
88 ConSplitterAbsolutePointerReset
,
89 ConSplitterAbsolutePointerGetState
,
91 (EFI_ABSOLUTE_POINTER_MODE
*) NULL
97 0x10000, // AbsoluteMaxX
98 0x10000, // AbsoluteMaxY
99 0x10000, // AbsoluteMaxZ
103 (EFI_ABSOLUTE_POINTER_PROTOCOL
**) NULL
,
113 // Uga Draw Protocol Private Data template
115 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UGA_DRAW_PROTOCOL mUgaDrawProtocolTemplate
= {
116 ConSplitterUgaDrawGetMode
,
117 ConSplitterUgaDrawSetMode
,
118 ConSplitterUgaDrawBlt
122 // Graphics Output Protocol Private Data template
124 GLOBAL_REMOVE_IF_UNREFERENCED EFI_GRAPHICS_OUTPUT_PROTOCOL mGraphicsOutputProtocolTemplate
= {
125 ConSplitterGraphicsOutputQueryMode
,
126 ConSplitterGraphicsOutputSetMode
,
127 ConSplitterGraphicsOutputBlt
,
133 // Text Out Splitter Private Data template
135 GLOBAL_REMOVE_IF_UNREFERENCED TEXT_OUT_SPLITTER_PRIVATE_DATA mConOut
= {
136 TEXT_OUT_SPLITTER_PRIVATE_DATA_SIGNATURE
,
139 ConSplitterTextOutReset
,
140 ConSplitterTextOutOutputString
,
141 ConSplitterTextOutTestString
,
142 ConSplitterTextOutQueryMode
,
143 ConSplitterTextOutSetMode
,
144 ConSplitterTextOutSetAttribute
,
145 ConSplitterTextOutClearScreen
,
146 ConSplitterTextOutSetCursorPosition
,
147 ConSplitterTextOutEnableCursor
,
148 (EFI_SIMPLE_TEXT_OUTPUT_MODE
*) NULL
175 (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*) NULL
,
180 (TEXT_OUT_AND_GOP_DATA
*) NULL
,
182 (TEXT_OUT_SPLITTER_QUERY_DATA
*) NULL
,
188 // Standard Error Text Out Splitter Data Template
190 GLOBAL_REMOVE_IF_UNREFERENCED TEXT_OUT_SPLITTER_PRIVATE_DATA mStdErr
= {
191 TEXT_OUT_SPLITTER_PRIVATE_DATA_SIGNATURE
,
194 ConSplitterTextOutReset
,
195 ConSplitterTextOutOutputString
,
196 ConSplitterTextOutTestString
,
197 ConSplitterTextOutQueryMode
,
198 ConSplitterTextOutSetMode
,
199 ConSplitterTextOutSetAttribute
,
200 ConSplitterTextOutClearScreen
,
201 ConSplitterTextOutSetCursorPosition
,
202 ConSplitterTextOutEnableCursor
,
203 (EFI_SIMPLE_TEXT_OUTPUT_MODE
*) NULL
230 (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*) NULL
,
235 (TEXT_OUT_AND_GOP_DATA
*) NULL
,
237 (TEXT_OUT_SPLITTER_QUERY_DATA
*) NULL
,
243 // Driver binding instance for Console Input Device
245 EFI_DRIVER_BINDING_PROTOCOL gConSplitterConInDriverBinding
= {
246 ConSplitterConInDriverBindingSupported
,
247 ConSplitterConInDriverBindingStart
,
248 ConSplitterConInDriverBindingStop
,
255 // Driver binding instance for Console Out device
257 EFI_DRIVER_BINDING_PROTOCOL gConSplitterConOutDriverBinding
= {
258 ConSplitterConOutDriverBindingSupported
,
259 ConSplitterConOutDriverBindingStart
,
260 ConSplitterConOutDriverBindingStop
,
267 // Driver binding instance for Standard Error device
269 EFI_DRIVER_BINDING_PROTOCOL gConSplitterStdErrDriverBinding
= {
270 ConSplitterStdErrDriverBindingSupported
,
271 ConSplitterStdErrDriverBindingStart
,
272 ConSplitterStdErrDriverBindingStop
,
279 // Driver binding instance for Simple Pointer protocol
281 EFI_DRIVER_BINDING_PROTOCOL gConSplitterSimplePointerDriverBinding
= {
282 ConSplitterSimplePointerDriverBindingSupported
,
283 ConSplitterSimplePointerDriverBindingStart
,
284 ConSplitterSimplePointerDriverBindingStop
,
291 // Driver binding instance for Absolute Pointer protocol
293 EFI_DRIVER_BINDING_PROTOCOL gConSplitterAbsolutePointerDriverBinding
= {
294 ConSplitterAbsolutePointerDriverBindingSupported
,
295 ConSplitterAbsolutePointerDriverBindingStart
,
296 ConSplitterAbsolutePointerDriverBindingStop
,
303 The Entry Point for module ConSplitter. The user code starts with this function.
305 Installs driver module protocols and. Creates virtual device handles for ConIn,
306 ConOut, and StdErr. Installs Simple Text In protocol, Simple Text In Ex protocol,
307 Simple Pointer protocol, Absolute Pointer protocol on those virtual handlers.
308 Installs Graphics Output protocol and/or UGA Draw protocol if needed.
310 @param[in] ImageHandle The firmware allocated handle for the EFI image.
311 @param[in] SystemTable A pointer to the EFI System Table.
313 @retval EFI_SUCCESS The entry point is executed successfully.
314 @retval other Some error occurs when executing this entry point.
319 ConSplitterDriverEntry(
320 IN EFI_HANDLE ImageHandle
,
321 IN EFI_SYSTEM_TABLE
*SystemTable
327 // Install driver model protocol(s).
329 Status
= EfiLibInstallDriverBindingComponentName2 (
332 &gConSplitterConInDriverBinding
,
334 &gConSplitterConInComponentName
,
335 &gConSplitterConInComponentName2
337 ASSERT_EFI_ERROR (Status
);
339 Status
= EfiLibInstallDriverBindingComponentName2 (
342 &gConSplitterSimplePointerDriverBinding
,
344 &gConSplitterSimplePointerComponentName
,
345 &gConSplitterSimplePointerComponentName2
347 ASSERT_EFI_ERROR (Status
);
349 Status
= EfiLibInstallDriverBindingComponentName2 (
352 &gConSplitterAbsolutePointerDriverBinding
,
354 &gConSplitterAbsolutePointerComponentName
,
355 &gConSplitterAbsolutePointerComponentName2
357 ASSERT_EFI_ERROR (Status
);
359 Status
= EfiLibInstallDriverBindingComponentName2 (
362 &gConSplitterConOutDriverBinding
,
364 &gConSplitterConOutComponentName
,
365 &gConSplitterConOutComponentName2
367 ASSERT_EFI_ERROR (Status
);
369 Status
= EfiLibInstallDriverBindingComponentName2 (
372 &gConSplitterStdErrDriverBinding
,
374 &gConSplitterStdErrComponentName
,
375 &gConSplitterStdErrComponentName2
377 ASSERT_EFI_ERROR (Status
);
380 // Either Graphics Output protocol or UGA Draw protocol must be supported.
382 ASSERT (FeaturePcdGet (PcdConOutGopSupport
) ||
383 FeaturePcdGet (PcdConOutUgaSupport
));
386 // The driver creates virtual handles for ConIn, ConOut, StdErr.
387 // The virtual handles will always exist even if no console exist in the
388 // system. This is need to support hotplug devices like USB.
391 // Create virtual device handle for ConIn Splitter
393 Status
= ConSplitterTextInConstructor (&mConIn
);
394 if (!EFI_ERROR (Status
)) {
395 Status
= gBS
->InstallMultipleProtocolInterfaces (
396 &mConIn
.VirtualHandle
,
397 &gEfiSimpleTextInProtocolGuid
,
399 &gEfiSimpleTextInputExProtocolGuid
,
401 &gEfiSimplePointerProtocolGuid
,
402 &mConIn
.SimplePointer
,
403 &gEfiAbsolutePointerProtocolGuid
,
404 &mConIn
.AbsolutePointer
,
407 if (!EFI_ERROR (Status
)) {
409 // Update the EFI System Table with new virtual console
410 // and update the pointer to Simple Text Input protocol.
412 gST
->ConsoleInHandle
= mConIn
.VirtualHandle
;
413 gST
->ConIn
= &mConIn
.TextIn
;
417 // Create virtual device handle for ConOut Splitter
419 Status
= ConSplitterTextOutConstructor (&mConOut
);
420 if (!EFI_ERROR (Status
)) {
421 Status
= gBS
->InstallMultipleProtocolInterfaces (
422 &mConOut
.VirtualHandle
,
423 &gEfiSimpleTextOutProtocolGuid
,
427 if (!EFI_ERROR (Status
)) {
429 // Update the EFI System Table with new virtual console
430 // and Update the pointer to Text Output protocol.
432 gST
->ConsoleOutHandle
= mConOut
.VirtualHandle
;
433 gST
->ConOut
= &mConOut
.TextOut
;
439 // Create virtual device handle for StdErr Splitter
441 Status
= ConSplitterTextOutConstructor (&mStdErr
);
442 if (!EFI_ERROR (Status
)) {
443 Status
= gBS
->InstallMultipleProtocolInterfaces (
444 &mStdErr
.VirtualHandle
,
445 &gEfiSimpleTextOutProtocolGuid
,
449 if (!EFI_ERROR (Status
)) {
451 // Update the EFI System Table with new virtual console
452 // and update the pointer to Text Output protocol.
454 gST
->StandardErrorHandle
= mStdErr
.VirtualHandle
;
455 gST
->StdErr
= &mStdErr
.TextOut
;
460 // Update the CRC32 in the EFI System Table header
463 gBS
->CalculateCrc32 (
474 Construct console input devices' private data.
476 @param ConInPrivate A pointer to the TEXT_IN_SPLITTER_PRIVATE_DATA
479 @retval EFI_OUT_OF_RESOURCES Out of resources.
480 @retval EFI_SUCCESS Text Input Devcie's private data has been constructed.
481 @retval other Failed to construct private data.
485 ConSplitterTextInConstructor (
486 TEXT_IN_SPLITTER_PRIVATE_DATA
*ConInPrivate
492 // Allocate buffer for Simple Text Input device
494 Status
= ConSplitterGrowBuffer (
495 sizeof (EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*),
496 &ConInPrivate
->TextInListCount
,
497 (VOID
**) &ConInPrivate
->TextInList
499 if (EFI_ERROR (Status
)) {
500 return EFI_OUT_OF_RESOURCES
;
504 // Create Event to wait for a key
506 Status
= gBS
->CreateEvent (
509 ConSplitterTextInWaitForKey
,
511 &ConInPrivate
->TextIn
.WaitForKey
513 ASSERT_EFI_ERROR (Status
);
516 // Allocate buffer for Simple Text Input Ex device
518 Status
= ConSplitterGrowBuffer (
519 sizeof (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*),
520 &ConInPrivate
->TextInExListCount
,
521 (VOID
**) &ConInPrivate
->TextInExList
523 if (EFI_ERROR (Status
)) {
524 return EFI_OUT_OF_RESOURCES
;
527 // Create Event to wait for a key Ex
529 Status
= gBS
->CreateEvent (
532 ConSplitterTextInWaitForKey
,
534 &ConInPrivate
->TextInEx
.WaitForKeyEx
536 ASSERT_EFI_ERROR (Status
);
538 InitializeListHead (&ConInPrivate
->NotifyList
);
540 ConInPrivate
->AbsolutePointer
.Mode
= &ConInPrivate
->AbsolutePointerMode
;
542 // Allocate buffer for Absolute Pointer device
544 Status
= ConSplitterGrowBuffer (
545 sizeof (EFI_ABSOLUTE_POINTER_PROTOCOL
*),
546 &ConInPrivate
->AbsolutePointerListCount
,
547 (VOID
**) &ConInPrivate
->AbsolutePointerList
549 if (EFI_ERROR (Status
)) {
550 return EFI_OUT_OF_RESOURCES
;
553 // Create Event to wait for device input for Absolute pointer device
555 Status
= gBS
->CreateEvent (
558 ConSplitterAbsolutePointerWaitForInput
,
560 &ConInPrivate
->AbsolutePointer
.WaitForInput
562 ASSERT_EFI_ERROR (Status
);
564 ConInPrivate
->SimplePointer
.Mode
= &ConInPrivate
->SimplePointerMode
;
566 // Allocate buffer for Simple Pointer device
568 Status
= ConSplitterGrowBuffer (
569 sizeof (EFI_SIMPLE_POINTER_PROTOCOL
*),
570 &ConInPrivate
->PointerListCount
,
571 (VOID
**) &ConInPrivate
->PointerList
573 if (EFI_ERROR (Status
)) {
574 return EFI_OUT_OF_RESOURCES
;
577 // Create Event to wait for device input for Simple pointer device
579 Status
= gBS
->CreateEvent (
582 ConSplitterSimplePointerWaitForInput
,
584 &ConInPrivate
->SimplePointer
.WaitForInput
586 ASSERT_EFI_ERROR (Status
);
588 // Create Event to signal ConIn connection request
590 Status
= gBS
->CreateEventEx (
593 ConSplitterEmptyCallbackFunction
,
595 &gConnectConInEventGuid
,
596 &ConInPrivate
->ConnectConInEvent
603 Construct console output devices' private data.
605 @param ConOutPrivate A pointer to the TEXT_OUT_SPLITTER_PRIVATE_DATA
608 @retval EFI_OUT_OF_RESOURCES Out of resources.
609 @retval EFI_SUCCESS Text Input Devcie's private data has been constructed.
613 ConSplitterTextOutConstructor (
614 TEXT_OUT_SPLITTER_PRIVATE_DATA
*ConOutPrivate
618 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Info
;
621 // Copy protocols template
623 if (FeaturePcdGet (PcdConOutUgaSupport
)) {
624 CopyMem (&ConOutPrivate
->UgaDraw
, &mUgaDrawProtocolTemplate
, sizeof (EFI_UGA_DRAW_PROTOCOL
));
626 if (FeaturePcdGet (PcdConOutGopSupport
)) {
627 CopyMem (&ConOutPrivate
->GraphicsOutput
, &mGraphicsOutputProtocolTemplate
, sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL
));
631 // Initilize console output splitter's private data.
633 ConOutPrivate
->TextOut
.Mode
= &ConOutPrivate
->TextOutMode
;
636 // When new console device is added, the new mode will be set later,
637 // so put current mode back to init state.
639 ConOutPrivate
->TextOutMode
.Mode
= 0xFF;
641 // Allocate buffer for Console Out device
643 Status
= ConSplitterGrowBuffer (
644 sizeof (TEXT_OUT_AND_GOP_DATA
),
645 &ConOutPrivate
->TextOutListCount
,
646 (VOID
**) &ConOutPrivate
->TextOutList
648 if (EFI_ERROR (Status
)) {
649 return EFI_OUT_OF_RESOURCES
;
652 // Allocate buffer for Text Out query data
654 Status
= ConSplitterGrowBuffer (
655 sizeof (TEXT_OUT_SPLITTER_QUERY_DATA
),
656 &ConOutPrivate
->TextOutQueryDataCount
,
657 (VOID
**) &ConOutPrivate
->TextOutQueryData
659 if (EFI_ERROR (Status
)) {
660 return EFI_OUT_OF_RESOURCES
;
664 // Setup the default console to 80 x 25 and mode to 0
666 ConOutPrivate
->TextOutQueryData
[0].Columns
= 80;
667 ConOutPrivate
->TextOutQueryData
[0].Rows
= 25;
668 TextOutSetMode (ConOutPrivate
, 0);
671 if (FeaturePcdGet (PcdConOutUgaSupport
)) {
673 // Setup the UgaDraw to 800 x 600 x 32 bits per pixel, 60Hz.
675 ConSplitterUgaDrawSetMode (&ConOutPrivate
->UgaDraw
, 800, 600, 32, 60);
677 if (FeaturePcdGet (PcdConOutGopSupport
)) {
679 // Setup resource for mode information in Graphics Output Protocol interface
681 if ((ConOutPrivate
->GraphicsOutput
.Mode
= AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE
))) == NULL
) {
682 return EFI_OUT_OF_RESOURCES
;
684 if ((ConOutPrivate
->GraphicsOutput
.Mode
->Info
= AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
))) == NULL
) {
685 return EFI_OUT_OF_RESOURCES
;
688 // Setup the DevNullGraphicsOutput to 800 x 600 x 32 bits per pixel
689 // DevNull will be updated to user-defined mode after driver has started.
691 if ((ConOutPrivate
->GraphicsOutputModeBuffer
= AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
))) == NULL
) {
692 return EFI_OUT_OF_RESOURCES
;
694 Info
= &ConOutPrivate
->GraphicsOutputModeBuffer
[0];
696 Info
->HorizontalResolution
= 800;
697 Info
->VerticalResolution
= 600;
698 Info
->PixelFormat
= PixelBltOnly
;
699 Info
->PixelsPerScanLine
= 800;
700 CopyMem (ConOutPrivate
->GraphicsOutput
.Mode
->Info
, Info
, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
));
701 ConOutPrivate
->GraphicsOutput
.Mode
->SizeOfInfo
= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
);
704 // Initialize the following items, theset items remain unchanged in GraphicsOutput->SetMode()
705 // GraphicsOutputMode->FrameBufferBase, GraphicsOutputMode->FrameBufferSize
707 ConOutPrivate
->GraphicsOutput
.Mode
->FrameBufferBase
= (EFI_PHYSICAL_ADDRESS
) (UINTN
) NULL
;
708 ConOutPrivate
->GraphicsOutput
.Mode
->FrameBufferSize
= 0;
710 ConOutPrivate
->GraphicsOutput
.Mode
->MaxMode
= 1;
712 // Initial current mode to unknown state, and then set to mode 0
714 ConOutPrivate
->GraphicsOutput
.Mode
->Mode
= 0xffff;
715 ConOutPrivate
->GraphicsOutput
.SetMode (&ConOutPrivate
->GraphicsOutput
, 0);
723 Test to see if the specified protocol could be supported on the specified device.
725 @param This Driver Binding protocol pointer.
726 @param ControllerHandle Handle of device to test.
727 @param Guid The specified protocol.
729 @retval EFI_SUCCESS The specified protocol is supported on this device.
730 @retval EFI_UNSUPPORTED The specified protocol attempts to be installed on virtul handle.
731 @retval other Failed to open specified protocol on this device.
735 ConSplitterSupported (
736 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
737 IN EFI_HANDLE ControllerHandle
,
745 // Make sure the Console Splitter does not attempt to attach to itself
747 if (ControllerHandle
== mConIn
.VirtualHandle
||
748 ControllerHandle
== mConOut
.VirtualHandle
||
749 ControllerHandle
== mStdErr
.VirtualHandle
751 return EFI_UNSUPPORTED
;
755 // Check to see whether the specific protocol could be opened BY_DRIVER
757 Status
= gBS
->OpenProtocol (
761 This
->DriverBindingHandle
,
763 EFI_OPEN_PROTOCOL_BY_DRIVER
766 if (EFI_ERROR (Status
)) {
773 This
->DriverBindingHandle
,
781 Test to see if Console In Device could be supported on the Controller.
783 @param This Driver Binding protocol instance pointer.
784 @param ControllerHandle Handle of device to test.
785 @param RemainingDevicePath Optional parameter use to pick a specific child
788 @retval EFI_SUCCESS This driver supports this device.
789 @retval other This driver does not support this device.
794 ConSplitterConInDriverBindingSupported (
795 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
796 IN EFI_HANDLE ControllerHandle
,
797 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
800 return ConSplitterSupported (
803 &gEfiConsoleInDeviceGuid
808 Test to see if Simple Pointer protocol could be supported on the Controller.
810 @param This Driver Binding protocol instance pointer.
811 @param ControllerHandle Handle of device to test.
812 @param RemainingDevicePath Optional parameter use to pick a specific child
815 @retval EFI_SUCCESS This driver supports this device.
816 @retval other This driver does not support this device.
821 ConSplitterSimplePointerDriverBindingSupported (
822 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
823 IN EFI_HANDLE ControllerHandle
,
824 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
827 return ConSplitterSupported (
830 &gEfiSimplePointerProtocolGuid
835 Test to see if Absolute Pointer protocol could be supported on the Controller.
837 @param This Driver Binding protocol instance pointer.
838 @param ControllerHandle Handle of device to test.
839 @param RemainingDevicePath Optional parameter use to pick a specific child
842 @retval EFI_SUCCESS This driver supports this device.
843 @retval other This driver does not support this device.
848 ConSplitterAbsolutePointerDriverBindingSupported (
849 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
850 IN EFI_HANDLE ControllerHandle
,
851 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
854 return ConSplitterSupported (
857 &gEfiAbsolutePointerProtocolGuid
863 Test to see if Console Out Device could be supported on the Controller.
865 @param This Driver Binding protocol instance pointer.
866 @param ControllerHandle Handle of device to test.
867 @param RemainingDevicePath Optional parameter use to pick a specific child
870 @retval EFI_SUCCESS This driver supports this device.
871 @retval other This driver does not support this device.
876 ConSplitterConOutDriverBindingSupported (
877 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
878 IN EFI_HANDLE ControllerHandle
,
879 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
882 return ConSplitterSupported (
885 &gEfiConsoleOutDeviceGuid
890 Test to see if Standard Error Device could be supported on the Controller.
892 @param This Driver Binding protocol instance pointer.
893 @param ControllerHandle Handle of device to test.
894 @param RemainingDevicePath Optional parameter use to pick a specific child
897 @retval EFI_SUCCESS This driver supports this device.
898 @retval other This driver does not support this device.
903 ConSplitterStdErrDriverBindingSupported (
904 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
905 IN EFI_HANDLE ControllerHandle
,
906 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
909 return ConSplitterSupported (
912 &gEfiStandardErrorDeviceGuid
918 Start ConSplitter on devcie handle by opening Console Device Guid on device handle
919 and the console virtual handle. And Get the console interface on controller handle.
921 @param This Driver Binding protocol instance pointer.
922 @param ControllerHandle Handle of device.
923 @param ConSplitterVirtualHandle Console virtual Handle.
924 @param DeviceGuid The specified Console Device, such as ConInDev,
926 @param InterfaceGuid The specified protocol to be opened.
927 @param Interface Protocol interface returned.
929 @retval EFI_SUCCESS This driver supports this device.
930 @retval other Failed to open the specified Console Device Guid
931 or specified protocol.
936 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
937 IN EFI_HANDLE ControllerHandle
,
938 IN EFI_HANDLE ConSplitterVirtualHandle
,
939 IN EFI_GUID
*DeviceGuid
,
940 IN EFI_GUID
*InterfaceGuid
,
948 // Check to see whether the ControllerHandle has the DeviceGuid on it.
950 Status
= gBS
->OpenProtocol (
954 This
->DriverBindingHandle
,
956 EFI_OPEN_PROTOCOL_BY_DRIVER
958 if (EFI_ERROR (Status
)) {
963 // Open the Parent Handle for the child.
965 Status
= gBS
->OpenProtocol (
969 This
->DriverBindingHandle
,
970 ConSplitterVirtualHandle
,
971 EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
973 if (EFI_ERROR (Status
)) {
978 // Open InterfaceGuid on the virtul handle.
980 Status
= gBS
->OpenProtocol (
984 This
->DriverBindingHandle
,
985 ConSplitterVirtualHandle
,
986 EFI_OPEN_PROTOCOL_GET_PROTOCOL
989 if (!EFI_ERROR (Status
)) {
994 // close the DeviceGuid on ConSplitter VirtualHandle.
999 This
->DriverBindingHandle
,
1000 ConSplitterVirtualHandle
1005 // close the DeviceGuid on ControllerHandle.
1007 gBS
->CloseProtocol (
1010 This
->DriverBindingHandle
,
1019 Start Console In Consplitter on device handle.
1021 @param This Driver Binding protocol instance pointer.
1022 @param ControllerHandle Handle of device to bind driver to.
1023 @param RemainingDevicePath Optional parameter use to pick a specific child
1026 @retval EFI_SUCCESS Console In Consplitter is added to ControllerHandle.
1027 @retval other Console In Consplitter does not support this device.
1032 ConSplitterConInDriverBindingStart (
1033 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1034 IN EFI_HANDLE ControllerHandle
,
1035 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
1039 EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*TextIn
;
1040 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*TextInEx
;
1043 // Start ConSplitter on ControllerHandle, and create the virtual
1044 // agrogated console device on first call Start for a SimpleTextIn handle.
1046 Status
= ConSplitterStart (
1049 mConIn
.VirtualHandle
,
1050 &gEfiConsoleInDeviceGuid
,
1051 &gEfiSimpleTextInProtocolGuid
,
1054 if (EFI_ERROR (Status
)) {
1059 // Add this device into Text In devices list.
1061 Status
= ConSplitterTextInAddDevice (&mConIn
, TextIn
);
1062 if (EFI_ERROR (Status
)) {
1066 Status
= gBS
->OpenProtocol (
1068 &gEfiSimpleTextInputExProtocolGuid
,
1069 (VOID
**) &TextInEx
,
1070 This
->DriverBindingHandle
,
1071 mConIn
.VirtualHandle
,
1072 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1074 if (!EFI_ERROR (Status
)) {
1076 // If Simple Text Input Ex protocol exists,
1077 // add this device into Text In Ex devices list.
1079 Status
= ConSplitterTextInExAddDevice (&mConIn
, TextInEx
);
1087 Start Simple Pointer Consplitter on device handle.
1089 @param This Driver Binding protocol instance pointer.
1090 @param ControllerHandle Handle of device to bind driver to.
1091 @param RemainingDevicePath Optional parameter use to pick a specific child
1094 @retval EFI_SUCCESS Simple Pointer Consplitter is added to ControllerHandle.
1095 @retval other Simple Pointer Consplitter does not support this device.
1100 ConSplitterSimplePointerDriverBindingStart (
1101 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1102 IN EFI_HANDLE ControllerHandle
,
1103 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
1107 EFI_SIMPLE_POINTER_PROTOCOL
*SimplePointer
;
1110 // Start ConSplitter on ControllerHandle, and create the virtual
1111 // agrogated console device on first call Start for a SimplePointer handle.
1113 Status
= ConSplitterStart (
1116 mConIn
.VirtualHandle
,
1117 &gEfiSimplePointerProtocolGuid
,
1118 &gEfiSimplePointerProtocolGuid
,
1119 (VOID
**) &SimplePointer
1121 if (EFI_ERROR (Status
)) {
1126 // Add this devcie into Simple Pointer devices list.
1128 return ConSplitterSimplePointerAddDevice (&mConIn
, SimplePointer
);
1133 Start Absolute Pointer Consplitter on device handle.
1135 @param This Driver Binding protocol instance pointer.
1136 @param ControllerHandle Handle of device to bind driver to.
1137 @param RemainingDevicePath Optional parameter use to pick a specific child
1140 @retval EFI_SUCCESS Absolute Pointer Consplitter is added to ControllerHandle.
1141 @retval other Absolute Pointer Consplitter does not support this device.
1146 ConSplitterAbsolutePointerDriverBindingStart (
1147 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1148 IN EFI_HANDLE ControllerHandle
,
1149 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
1153 EFI_ABSOLUTE_POINTER_PROTOCOL
*AbsolutePointer
;
1156 // Start ConSplitter on ControllerHandle, and create the virtual
1157 // agrogated console device on first call Start for a AbsolutePointer handle.
1159 Status
= ConSplitterStart (
1162 mConIn
.VirtualHandle
,
1163 &gEfiAbsolutePointerProtocolGuid
,
1164 &gEfiAbsolutePointerProtocolGuid
,
1165 (VOID
**) &AbsolutePointer
1168 if (EFI_ERROR (Status
)) {
1173 // Add this devcie into Absolute Pointer devices list.
1175 return ConSplitterAbsolutePointerAddDevice (&mConIn
, AbsolutePointer
);
1180 Start Console Out Consplitter on device handle.
1182 @param This Driver Binding protocol instance pointer.
1183 @param ControllerHandle Handle of device to bind driver to.
1184 @param RemainingDevicePath Optional parameter use to pick a specific child
1187 @retval EFI_SUCCESS Console Out Consplitter is added to ControllerHandle.
1188 @retval other Console Out Consplitter does not support this device.
1193 ConSplitterConOutDriverBindingStart (
1194 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1195 IN EFI_HANDLE ControllerHandle
,
1196 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
1200 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
;
1201 EFI_GRAPHICS_OUTPUT_PROTOCOL
*GraphicsOutput
;
1202 EFI_UGA_DRAW_PROTOCOL
*UgaDraw
;
1204 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Info
;
1207 // Start ConSplitter on ControllerHandle, and create the virtual
1208 // agrogated console device on first call Start for a ConsoleOut handle.
1210 Status
= ConSplitterStart (
1213 mConOut
.VirtualHandle
,
1214 &gEfiConsoleOutDeviceGuid
,
1215 &gEfiSimpleTextOutProtocolGuid
,
1218 if (EFI_ERROR (Status
)) {
1222 GraphicsOutput
= NULL
;
1225 // Try to Open Graphics Output protocol
1227 Status
= gBS
->OpenProtocol (
1229 &gEfiGraphicsOutputProtocolGuid
,
1230 (VOID
**) &GraphicsOutput
,
1231 This
->DriverBindingHandle
,
1232 mConOut
.VirtualHandle
,
1233 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1236 if (EFI_ERROR (Status
) && FeaturePcdGet (PcdUgaConsumeSupport
)) {
1238 // Open UGA DRAW protocol
1242 &gEfiUgaDrawProtocolGuid
,
1244 This
->DriverBindingHandle
,
1245 mConOut
.VirtualHandle
,
1246 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1251 // When new console device is added, the new mode will be set later,
1252 // so put current mode back to init state.
1254 mConOut
.TextOutMode
.Mode
= 0xFF;
1257 // If both ConOut and StdErr incorporate the same Text Out device,
1258 // their MaxMode and QueryData should be the intersection of both.
1260 Status
= ConSplitterTextOutAddDevice (&mConOut
, TextOut
, GraphicsOutput
, UgaDraw
);
1261 ConSplitterTextOutSetAttribute (&mConOut
.TextOut
, EFI_TEXT_ATTR (EFI_LIGHTGRAY
, EFI_BLACK
));
1263 if (FeaturePcdGet (PcdConOutUgaSupport
)) {
1265 // Get the UGA mode data of ConOut from the current mode
1267 if (GraphicsOutput
!= NULL
) {
1268 Status
= GraphicsOutput
->QueryMode (GraphicsOutput
, GraphicsOutput
->Mode
->Mode
, &SizeOfInfo
, &Info
);
1269 if (EFI_ERROR (Status
)) {
1272 ASSERT ( SizeOfInfo
<= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
));
1274 mConOut
.UgaHorizontalResolution
= Info
->HorizontalResolution
;
1275 mConOut
.UgaVerticalResolution
= Info
->VerticalResolution
;
1276 mConOut
.UgaColorDepth
= 32;
1277 mConOut
.UgaRefreshRate
= 60;
1281 } else if (UgaDraw
!= NULL
) {
1282 Status
= UgaDraw
->GetMode (
1284 &mConOut
.UgaHorizontalResolution
,
1285 &mConOut
.UgaVerticalResolution
,
1286 &mConOut
.UgaColorDepth
,
1287 &mConOut
.UgaRefreshRate
1297 Start Standard Error Consplitter on device handle.
1299 @param This Driver Binding protocol instance pointer.
1300 @param ControllerHandle Handle of device to bind driver to.
1301 @param RemainingDevicePath Optional parameter use to pick a specific child
1304 @retval EFI_SUCCESS Standard Error Consplitter is added to ControllerHandle.
1305 @retval other Standard Error Consplitter does not support this device.
1310 ConSplitterStdErrDriverBindingStart (
1311 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1312 IN EFI_HANDLE ControllerHandle
,
1313 IN EFI_DEVICE_PATH_PROTOCOL
*RemainingDevicePath
1317 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
;
1320 // Start ConSplitter on ControllerHandle, and create the virtual
1321 // agrogated console device on first call Start for a StandardError handle.
1323 Status
= ConSplitterStart (
1326 mStdErr
.VirtualHandle
,
1327 &gEfiStandardErrorDeviceGuid
,
1328 &gEfiSimpleTextOutProtocolGuid
,
1331 if (EFI_ERROR (Status
)) {
1336 // When new console device is added, the new mode will be set later,
1337 // so put current mode back to init state.
1339 mStdErr
.TextOutMode
.Mode
= 0xFF;
1342 // If both ConOut and StdErr incorporate the same Text Out device,
1343 // their MaxMode and QueryData should be the intersection of both.
1345 Status
= ConSplitterTextOutAddDevice (&mStdErr
, TextOut
, NULL
, NULL
);
1346 ConSplitterTextOutSetAttribute (&mStdErr
.TextOut
, EFI_TEXT_ATTR (EFI_MAGENTA
, EFI_BLACK
));
1347 if (EFI_ERROR (Status
)) {
1356 Stop ConSplitter on device handle by closing Console Device Guid on device handle
1357 and the console virtual handle.
1359 @param This Protocol instance pointer.
1360 @param ControllerHandle Handle of device.
1361 @param ConSplitterVirtualHandle Console virtual Handle.
1362 @param DeviceGuid The specified Console Device, such as ConInDev,
1364 @param InterfaceGuid The specified protocol to be opened.
1365 @param Interface Protocol interface returned.
1367 @retval EFI_SUCCESS Stop ConSplitter on ControllerHandle successfully.
1368 @retval other Failed to Stop ConSplitter on ControllerHandle.
1373 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1374 IN EFI_HANDLE ControllerHandle
,
1375 IN EFI_HANDLE ConSplitterVirtualHandle
,
1376 IN EFI_GUID
*DeviceGuid
,
1377 IN EFI_GUID
*InterfaceGuid
,
1383 Status
= gBS
->OpenProtocol (
1387 This
->DriverBindingHandle
,
1389 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1391 if (EFI_ERROR (Status
)) {
1395 // close the protocol refered.
1397 gBS
->CloseProtocol (
1400 This
->DriverBindingHandle
,
1401 ConSplitterVirtualHandle
1404 gBS
->CloseProtocol (
1407 This
->DriverBindingHandle
,
1416 Stop Console In ConSplitter on ControllerHandle by closing Console In Devcice GUID.
1418 @param This Driver Binding protocol instance pointer.
1419 @param ControllerHandle Handle of device to stop driver on
1420 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1421 children is zero stop the entire bus driver.
1422 @param ChildHandleBuffer List of Child Handles to Stop.
1424 @retval EFI_SUCCESS This driver is removed ControllerHandle
1425 @retval other This driver was not removed from this device
1430 ConSplitterConInDriverBindingStop (
1431 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1432 IN EFI_HANDLE ControllerHandle
,
1433 IN UINTN NumberOfChildren
,
1434 IN EFI_HANDLE
*ChildHandleBuffer
1438 EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*TextIn
;
1439 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*TextInEx
;
1441 if (NumberOfChildren
== 0) {
1445 Status
= gBS
->OpenProtocol (
1447 &gEfiSimpleTextInputExProtocolGuid
,
1448 (VOID
**) &TextInEx
,
1449 This
->DriverBindingHandle
,
1451 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1453 if (!EFI_ERROR (Status
)) {
1455 // If Simple Text Input Ex protocol exists,
1456 // remove device from Text Input Ex devices list.
1458 Status
= ConSplitterTextInExDeleteDevice (&mConIn
, TextInEx
);
1459 if (EFI_ERROR (Status
)) {
1465 // Close Simple Text In protocol on controller handle and virtual handle.
1467 Status
= ConSplitterStop (
1470 mConIn
.VirtualHandle
,
1471 &gEfiConsoleInDeviceGuid
,
1472 &gEfiSimpleTextInProtocolGuid
,
1475 if (EFI_ERROR (Status
)) {
1480 // Remove device from Text Input devices list.
1482 return ConSplitterTextInDeleteDevice (&mConIn
, TextIn
);
1487 Stop Simple Pointer protocol ConSplitter on ControllerHandle by closing
1488 Simple Pointer protocol.
1490 @param This Driver Binding protocol instance pointer.
1491 @param ControllerHandle Handle of device to stop driver on
1492 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1493 children is zero stop the entire bus driver.
1494 @param ChildHandleBuffer List of Child Handles to Stop.
1496 @retval EFI_SUCCESS This driver is removed ControllerHandle
1497 @retval other This driver was not removed from this device
1502 ConSplitterSimplePointerDriverBindingStop (
1503 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1504 IN EFI_HANDLE ControllerHandle
,
1505 IN UINTN NumberOfChildren
,
1506 IN EFI_HANDLE
*ChildHandleBuffer
1510 EFI_SIMPLE_POINTER_PROTOCOL
*SimplePointer
;
1512 if (NumberOfChildren
== 0) {
1517 // Close Simple Pointer protocol on controller handle and virtual handle.
1519 Status
= ConSplitterStop (
1522 mConIn
.VirtualHandle
,
1523 &gEfiSimplePointerProtocolGuid
,
1524 &gEfiSimplePointerProtocolGuid
,
1525 (VOID
**) &SimplePointer
1527 if (EFI_ERROR (Status
)) {
1532 // Remove this device from Simple Pointer device list.
1534 return ConSplitterSimplePointerDeleteDevice (&mConIn
, SimplePointer
);
1539 Stop Absolute Pointer protocol ConSplitter on ControllerHandle by closing
1540 Absolute Pointer protocol.
1542 @param This Driver Binding protocol instance pointer.
1543 @param ControllerHandle Handle of device to stop driver on
1544 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1545 children is zero stop the entire bus driver.
1546 @param ChildHandleBuffer List of Child Handles to Stop.
1548 @retval EFI_SUCCESS This driver is removed ControllerHandle
1549 @retval other This driver was not removed from this device
1554 ConSplitterAbsolutePointerDriverBindingStop (
1555 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1556 IN EFI_HANDLE ControllerHandle
,
1557 IN UINTN NumberOfChildren
,
1558 IN EFI_HANDLE
*ChildHandleBuffer
1562 EFI_ABSOLUTE_POINTER_PROTOCOL
*AbsolutePointer
;
1564 if (NumberOfChildren
== 0) {
1569 // Close Absolute Pointer protocol on controller handle and virtual handle.
1571 Status
= ConSplitterStop (
1574 mConIn
.VirtualHandle
,
1575 &gEfiAbsolutePointerProtocolGuid
,
1576 &gEfiAbsolutePointerProtocolGuid
,
1577 (VOID
**) &AbsolutePointer
1579 if (EFI_ERROR (Status
)) {
1584 // Remove this device from Absolute Pointer device list.
1586 return ConSplitterAbsolutePointerDeleteDevice (&mConIn
, AbsolutePointer
);
1591 Stop Console Out ConSplitter on device handle by closing Console Out Devcice GUID.
1593 @param This Driver Binding protocol instance pointer.
1594 @param ControllerHandle Handle of device to stop driver on
1595 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1596 children is zero stop the entire bus driver.
1597 @param ChildHandleBuffer List of Child Handles to Stop.
1599 @retval EFI_SUCCESS This driver is removed ControllerHandle
1600 @retval other This driver was not removed from this device
1605 ConSplitterConOutDriverBindingStop (
1606 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1607 IN EFI_HANDLE ControllerHandle
,
1608 IN UINTN NumberOfChildren
,
1609 IN EFI_HANDLE
*ChildHandleBuffer
1613 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
;
1615 if (NumberOfChildren
== 0) {
1620 // Close Absolute Pointer protocol on controller handle and virtual handle.
1622 Status
= ConSplitterStop (
1625 mConOut
.VirtualHandle
,
1626 &gEfiConsoleOutDeviceGuid
,
1627 &gEfiSimpleTextOutProtocolGuid
,
1630 if (EFI_ERROR (Status
)) {
1635 // Remove this device from Text Out device list.
1637 return ConSplitterTextOutDeleteDevice (&mConOut
, TextOut
);
1642 Stop Standard Error ConSplitter on ControllerHandle by closing Standard Error GUID.
1644 @param This Driver Binding protocol instance pointer.
1645 @param ControllerHandle Handle of device to stop driver on
1646 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1647 children is zero stop the entire bus driver.
1648 @param ChildHandleBuffer List of Child Handles to Stop.
1650 @retval EFI_SUCCESS This driver is removed ControllerHandle
1651 @retval other This driver was not removed from this device
1656 ConSplitterStdErrDriverBindingStop (
1657 IN EFI_DRIVER_BINDING_PROTOCOL
*This
,
1658 IN EFI_HANDLE ControllerHandle
,
1659 IN UINTN NumberOfChildren
,
1660 IN EFI_HANDLE
*ChildHandleBuffer
1664 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
;
1666 if (NumberOfChildren
== 0) {
1671 // Close Standard Error Device on controller handle and virtual handle.
1673 Status
= ConSplitterStop (
1676 mStdErr
.VirtualHandle
,
1677 &gEfiStandardErrorDeviceGuid
,
1678 &gEfiSimpleTextOutProtocolGuid
,
1681 if (EFI_ERROR (Status
)) {
1685 // Delete this console error out device's data structures.
1687 return ConSplitterTextOutDeleteDevice (&mStdErr
, TextOut
);
1692 Take the passed in Buffer of size ElementSize and grow the buffer
1693 by CONSOLE_SPLITTER_ALLOC_UNIT * ElementSize bytes.
1694 Copy the current data in Buffer to the new version of Buffer and
1695 free the old version of buffer.
1697 @param ElementSize Size of element in array.
1698 @param Count Current number of elements in array.
1699 @param Buffer Bigger version of passed in Buffer with all the
1702 @retval EFI_SUCCESS Buffer size has grown.
1703 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
1707 ConSplitterGrowBuffer (
1708 IN UINTN ElementSize
,
1709 IN OUT UINTN
*Count
,
1710 IN OUT VOID
**Buffer
1716 // grow the buffer to new buffer size,
1717 // copy the old buffer's content to the new-size buffer,
1718 // then free the old buffer.
1720 Ptr
= ReallocatePool (
1721 ElementSize
* (*Count
),
1722 ElementSize
* ((*Count
) + CONSOLE_SPLITTER_ALLOC_UNIT
),
1726 return EFI_OUT_OF_RESOURCES
;
1728 *Count
+= CONSOLE_SPLITTER_ALLOC_UNIT
;
1735 Add Text Input Device in Consplitter Text Input list.
1737 @param Private Text In Splitter pointer.
1738 @param TextIn Simple Text Input protocol pointer.
1740 @retval EFI_SUCCESS Text Input Device added successfully.
1741 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
1745 ConSplitterTextInAddDevice (
1746 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
1747 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*TextIn
1753 // If the Text In List is full, enlarge it by calling ConSplitterGrowBuffer().
1755 if (Private
->CurrentNumberOfConsoles
>= Private
->TextInListCount
) {
1756 Status
= ConSplitterGrowBuffer (
1757 sizeof (EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*),
1758 &Private
->TextInListCount
,
1759 (VOID
**) &Private
->TextInList
1761 if (EFI_ERROR (Status
)) {
1762 return EFI_OUT_OF_RESOURCES
;
1766 // Add the new text-in device data structure into the Text In List.
1768 Private
->TextInList
[Private
->CurrentNumberOfConsoles
] = TextIn
;
1769 Private
->CurrentNumberOfConsoles
++;
1772 // Extra CheckEvent added to reduce the double CheckEvent().
1774 gBS
->CheckEvent (TextIn
->WaitForKey
);
1781 Remove Text Input Device from Consplitter Text Input list.
1783 @param Private Text In Splitter pointer.
1784 @param TextIn Simple Text protocol pointer.
1786 @retval EFI_SUCCESS Simple Text Device removed successfully.
1787 @retval EFI_NOT_FOUND No Simple Text Device found.
1791 ConSplitterTextInDeleteDevice (
1792 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
1793 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*TextIn
1798 // Remove the specified text-in device data structure from the Text In List,
1799 // and rearrange the remaining data structures in the Text In List.
1801 for (Index
= 0; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
1802 if (Private
->TextInList
[Index
] == TextIn
) {
1803 for (; Index
< Private
->CurrentNumberOfConsoles
- 1; Index
++) {
1804 Private
->TextInList
[Index
] = Private
->TextInList
[Index
+ 1];
1807 Private
->CurrentNumberOfConsoles
--;
1812 return EFI_NOT_FOUND
;
1816 Add Text Input Ex Device in Consplitter Text Input Ex list.
1818 @param Private Text In Splitter pointer.
1819 @param TextInEx Simple Text Input Ex Input protocol pointer.
1821 @retval EFI_SUCCESS Text Input Ex Device added successfully.
1822 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
1826 ConSplitterTextInExAddDevice (
1827 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
1828 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*TextInEx
1833 TEXT_IN_EX_SPLITTER_NOTIFY
*CurrentNotify
;
1834 UINTN TextInExListCount
;
1837 // Enlarge the NotifyHandleList and the TextInExList
1839 if (Private
->CurrentNumberOfExConsoles
>= Private
->TextInExListCount
) {
1840 for (Link
= Private
->NotifyList
.ForwardLink
; Link
!= &Private
->NotifyList
; Link
= Link
->ForwardLink
) {
1841 CurrentNotify
= TEXT_IN_EX_SPLITTER_NOTIFY_FROM_THIS (Link
);
1842 TextInExListCount
= Private
->TextInExListCount
;
1844 Status
= ConSplitterGrowBuffer (
1845 sizeof (EFI_HANDLE
),
1847 (VOID
**) &CurrentNotify
->NotifyHandleList
1849 if (EFI_ERROR (Status
)) {
1850 return EFI_OUT_OF_RESOURCES
;
1853 Status
= ConSplitterGrowBuffer (
1854 sizeof (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*),
1855 &Private
->TextInExListCount
,
1856 (VOID
**) &Private
->TextInExList
1858 if (EFI_ERROR (Status
)) {
1859 return EFI_OUT_OF_RESOURCES
;
1864 // Register the key notify in the new text-in device
1866 for (Link
= Private
->NotifyList
.ForwardLink
; Link
!= &Private
->NotifyList
; Link
= Link
->ForwardLink
) {
1867 CurrentNotify
= TEXT_IN_EX_SPLITTER_NOTIFY_FROM_THIS (Link
);
1868 Status
= TextInEx
->RegisterKeyNotify (
1870 &CurrentNotify
->KeyData
,
1871 CurrentNotify
->KeyNotificationFn
,
1872 &CurrentNotify
->NotifyHandleList
[Private
->CurrentNumberOfExConsoles
]
1874 if (EFI_ERROR (Status
)) {
1875 for (Link
= Link
->BackLink
; Link
!= &Private
->NotifyList
; Link
= Link
->BackLink
) {
1876 CurrentNotify
= TEXT_IN_EX_SPLITTER_NOTIFY_FROM_THIS (Link
);
1877 TextInEx
->UnregisterKeyNotify (
1879 CurrentNotify
->NotifyHandleList
[Private
->CurrentNumberOfExConsoles
]
1887 // Add the new text-in device data structure into the Text Input Ex List.
1889 Private
->TextInExList
[Private
->CurrentNumberOfExConsoles
] = TextInEx
;
1890 Private
->CurrentNumberOfExConsoles
++;
1893 // Extra CheckEvent added to reduce the double CheckEvent().
1895 gBS
->CheckEvent (TextInEx
->WaitForKeyEx
);
1901 Remove Text Ex Device from Consplitter Text Input Ex list.
1903 @param Private Text In Splitter pointer.
1904 @param TextInEx Simple Text Ex protocol pointer.
1906 @retval EFI_SUCCESS Simple Text Input Ex Device removed successfully.
1907 @retval EFI_NOT_FOUND No Simple Text Input Ex Device found.
1911 ConSplitterTextInExDeleteDevice (
1912 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
1913 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*TextInEx
1918 // Remove the specified text-in device data structure from the Text Input Ex List,
1919 // and rearrange the remaining data structures in the Text In List.
1921 for (Index
= 0; Index
< Private
->CurrentNumberOfExConsoles
; Index
++) {
1922 if (Private
->TextInExList
[Index
] == TextInEx
) {
1923 for (; Index
< Private
->CurrentNumberOfExConsoles
- 1; Index
++) {
1924 Private
->TextInExList
[Index
] = Private
->TextInExList
[Index
+ 1];
1927 Private
->CurrentNumberOfExConsoles
--;
1932 return EFI_NOT_FOUND
;
1937 Add Simple Pointer Device in Consplitter Simple Pointer list.
1939 @param Private Text In Splitter pointer.
1940 @param SimplePointer Simple Pointer protocol pointer.
1942 @retval EFI_SUCCESS Simple Pointer Device added successfully.
1943 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
1947 ConSplitterSimplePointerAddDevice (
1948 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
1949 IN EFI_SIMPLE_POINTER_PROTOCOL
*SimplePointer
1955 // If the Simple Pointer List is full, enlarge it by calling ConSplitterGrowBuffer().
1957 if (Private
->CurrentNumberOfPointers
>= Private
->PointerListCount
) {
1958 Status
= ConSplitterGrowBuffer (
1959 sizeof (EFI_SIMPLE_POINTER_PROTOCOL
*),
1960 &Private
->PointerListCount
,
1961 (VOID
**) &Private
->PointerList
1963 if (EFI_ERROR (Status
)) {
1964 return EFI_OUT_OF_RESOURCES
;
1968 // Add the new text-in device data structure into the Simple Pointer List.
1970 Private
->PointerList
[Private
->CurrentNumberOfPointers
] = SimplePointer
;
1971 Private
->CurrentNumberOfPointers
++;
1978 Remove Simple Pointer Device from Consplitter Simple Pointer list.
1980 @param Private Text In Splitter pointer.
1981 @param SimplePointer Simple Pointer protocol pointer.
1983 @retval EFI_SUCCESS Simple Pointer Device removed successfully.
1984 @retval EFI_NOT_FOUND No Simple Pointer Device found.
1988 ConSplitterSimplePointerDeleteDevice (
1989 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
1990 IN EFI_SIMPLE_POINTER_PROTOCOL
*SimplePointer
1995 // Remove the specified text-in device data structure from the Simple Pointer List,
1996 // and rearrange the remaining data structures in the Text In List.
1998 for (Index
= 0; Index
< Private
->CurrentNumberOfPointers
; Index
++) {
1999 if (Private
->PointerList
[Index
] == SimplePointer
) {
2000 for (; Index
< Private
->CurrentNumberOfPointers
- 1; Index
++) {
2001 Private
->PointerList
[Index
] = Private
->PointerList
[Index
+ 1];
2004 Private
->CurrentNumberOfPointers
--;
2009 return EFI_NOT_FOUND
;
2014 Add Absolute Pointer Device in Consplitter Absolute Pointer list.
2016 @param Private Text In Splitter pointer.
2017 @param AbsolutePointer Absolute Pointer protocol pointer.
2019 @retval EFI_SUCCESS Absolute Pointer Device added successfully.
2020 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2024 ConSplitterAbsolutePointerAddDevice (
2025 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
2026 IN EFI_ABSOLUTE_POINTER_PROTOCOL
*AbsolutePointer
2032 // If the Absolute Pointer List is full, enlarge it by calling ConSplitterGrowBuffer().
2034 if (Private
->CurrentNumberOfAbsolutePointers
>= Private
->AbsolutePointerListCount
) {
2035 Status
= ConSplitterGrowBuffer (
2036 sizeof (EFI_ABSOLUTE_POINTER_PROTOCOL
*),
2037 &Private
->AbsolutePointerListCount
,
2038 (VOID
**) &Private
->AbsolutePointerList
2040 if (EFI_ERROR (Status
)) {
2041 return EFI_OUT_OF_RESOURCES
;
2045 // Add the new text-in device data structure into the Absolute Pointer List.
2047 Private
->AbsolutePointerList
[Private
->CurrentNumberOfAbsolutePointers
] = AbsolutePointer
;
2048 Private
->CurrentNumberOfAbsolutePointers
++;
2055 Remove Absolute Pointer Device from Consplitter Absolute Pointer list.
2057 @param Private Text In Splitter pointer.
2058 @param AbsolutePointer Absolute Pointer protocol pointer.
2060 @retval EFI_SUCCESS Absolute Pointer Device removed successfully.
2061 @retval EFI_NOT_FOUND No Absolute Pointer Device found.
2065 ConSplitterAbsolutePointerDeleteDevice (
2066 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
2067 IN EFI_ABSOLUTE_POINTER_PROTOCOL
*AbsolutePointer
2072 // Remove the specified text-in device data structure from the Absolute Pointer List,
2073 // and rearrange the remaining data structures from the Absolute Pointer List.
2075 for (Index
= 0; Index
< Private
->CurrentNumberOfAbsolutePointers
; Index
++) {
2076 if (Private
->AbsolutePointerList
[Index
] == AbsolutePointer
) {
2077 for (; Index
< Private
->CurrentNumberOfAbsolutePointers
- 1; Index
++) {
2078 Private
->AbsolutePointerList
[Index
] = Private
->AbsolutePointerList
[Index
+ 1];
2081 Private
->CurrentNumberOfAbsolutePointers
--;
2086 return EFI_NOT_FOUND
;
2090 Reallocate Text Out mode map.
2092 Allocate new buffer and copy original buffer into the new buffer.
2094 @param Private Consplitter Text Out pointer.
2096 @retval EFI_SUCCESS Buffer size has grown
2097 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2101 ConSplitterGrowMapTable (
2102 IN TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
2108 INT32
*TextOutModeMap
;
2109 INT32
*OldTextOutModeMap
;
2115 NewSize
= Private
->TextOutListCount
* sizeof (INT32
);
2116 OldTextOutModeMap
= Private
->TextOutModeMap
;
2117 TotalSize
= NewSize
* (Private
->TextOutQueryDataCount
);
2120 // Allocate new buffer for Text Out List.
2122 TextOutModeMap
= AllocatePool (TotalSize
);
2123 if (TextOutModeMap
== NULL
) {
2124 return EFI_OUT_OF_RESOURCES
;
2127 SetMem (TextOutModeMap
, TotalSize
, 0xFF);
2128 Private
->TextOutModeMap
= TextOutModeMap
;
2131 // If TextOutList has been enlarged, need to realloc the mode map table
2132 // The mode map table is regarded as a two dimension array.
2135 // 0 ---------> TextOutListCount ----> TextOutListCount
2136 // | -------------------------------------------
2143 // -------------------------------------------
2146 if (OldTextOutModeMap
!= NULL
) {
2148 Size
= Private
->CurrentNumberOfConsoles
* sizeof (INT32
);
2150 SrcAddress
= OldTextOutModeMap
;
2151 NewStepSize
= NewSize
/ sizeof(INT32
);
2152 // If Private->CurrentNumberOfConsoles is not zero and OldTextOutModeMap
2153 // is not NULL, it indicates that the original TextOutModeMap is not enough
2154 // for the new console devices and has been enlarged by CONSOLE_SPLITTER_ALLOC_UNIT columns.
2156 OldStepSize
= NewStepSize
- CONSOLE_SPLITTER_ALLOC_UNIT
;
2159 // Copy the old data to the new one
2161 while (Index
< Private
->TextOutMode
.MaxMode
) {
2162 CopyMem (TextOutModeMap
, SrcAddress
, Size
);
2164 // Go to next row of new TextOutModeMap.
2166 TextOutModeMap
+= NewStepSize
;
2168 // Go to next row of old TextOutModeMap.
2170 SrcAddress
+= OldStepSize
;
2174 // Free the old buffer
2176 FreePool (OldTextOutModeMap
);
2184 Add new device's output mode to console splitter's mode list.
2186 @param Private Text Out Splitter pointer
2187 @param TextOut Simple Text Output protocol pointer.
2189 @retval EFI_SUCCESS Device added successfully.
2190 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2194 ConSplitterAddOutputMode (
2195 IN TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
,
2196 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
2204 MaxMode
= TextOut
->Mode
->MaxMode
;
2205 Private
->TextOutMode
.MaxMode
= MaxMode
;
2208 // Grow the buffer if query data buffer is not large enough to
2209 // hold all the mode supported by the first console.
2211 while (MaxMode
> (INT32
) Private
->TextOutQueryDataCount
) {
2212 Status
= ConSplitterGrowBuffer (
2213 sizeof (TEXT_OUT_SPLITTER_QUERY_DATA
),
2214 &Private
->TextOutQueryDataCount
,
2215 (VOID
**) &Private
->TextOutQueryData
2217 if (EFI_ERROR (Status
)) {
2218 return EFI_OUT_OF_RESOURCES
;
2222 // Allocate buffer for the output mode map
2224 Status
= ConSplitterGrowMapTable (Private
);
2225 if (EFI_ERROR (Status
)) {
2226 return EFI_OUT_OF_RESOURCES
;
2229 // As the first textout device, directly add the mode in to QueryData
2230 // and at the same time record the mapping between QueryData and TextOut.
2234 while (Mode
< MaxMode
) {
2235 Status
= TextOut
->QueryMode (
2238 &Private
->TextOutQueryData
[Mode
].Columns
,
2239 &Private
->TextOutQueryData
[Mode
].Rows
2242 // If mode 1 (80x50) is not supported, make sure mode 1 in TextOutQueryData
2245 if ((EFI_ERROR(Status
)) && (Mode
== 1)) {
2246 Private
->TextOutQueryData
[Mode
].Columns
= 0;
2247 Private
->TextOutQueryData
[Mode
].Rows
= 0;
2249 Private
->TextOutModeMap
[Index
] = Mode
;
2251 Index
+= Private
->TextOutListCount
;
2258 Reconstruct TextOutModeMap to get intersection of modes.
2260 This routine reconstruct TextOutModeMap to get the intersection
2261 of modes for all console out devices. Because EFI/UEFI spec require
2262 mode 0 is 80x25, mode 1 is 80x50, this routine will not check the
2263 intersection for mode 0 and mode 1.
2265 @param TextOutModeMap Current text out mode map, begin with the mode 80x25
2266 @param NewlyAddedMap New text out mode map, begin with the mode 80x25
2267 @param MapStepSize Mode step size for one console device
2268 @param NewMapStepSize New Mode step size for one console device
2269 @param MaxMode IN: Current max text mode, OUT: Updated max text mode.
2270 @param CurrentMode IN: Current text mode, OUT: Updated current text mode.
2274 ConSplitterGetIntersection (
2275 IN INT32
*TextOutModeMap
,
2276 IN INT32
*NewlyAddedMap
,
2277 IN UINTN MapStepSize
,
2278 IN UINTN NewMapStepSize
,
2279 IN OUT INT32
*MaxMode
,
2280 IN OUT INT32
*CurrentMode
2284 INT32
*CurrentMapEntry
;
2285 INT32
*NextMapEntry
;
2287 INT32 CurrentMaxMode
;
2291 // According to EFI/UEFI spec, mode 0 and mode 1 have been reserved
2292 // for 80x25 and 80x50 in Simple Text Out protocol, so don't make intersection
2293 // for mode 0 and mode 1, mode number starts from 2.
2296 CurrentMapEntry
= &TextOutModeMap
[MapStepSize
* 2];
2297 NextMapEntry
= CurrentMapEntry
;
2298 NewMapEntry
= &NewlyAddedMap
[NewMapStepSize
* 2];
2300 CurrentMaxMode
= *MaxMode
;
2301 Mode
= *CurrentMode
;
2303 while (Index
< CurrentMaxMode
) {
2304 if (*NewMapEntry
== -1) {
2306 // This mode is not supported any more. Remove it. Special care
2307 // must be taken as this remove will also affect current mode;
2309 if (Index
== *CurrentMode
) {
2311 } else if (Index
< *CurrentMode
) {
2316 if (CurrentMapEntry
!= NextMapEntry
) {
2317 CopyMem (NextMapEntry
, CurrentMapEntry
, MapStepSize
* sizeof (INT32
));
2320 NextMapEntry
+= MapStepSize
;
2323 CurrentMapEntry
+= MapStepSize
;
2324 NewMapEntry
+= NewMapStepSize
;
2328 *CurrentMode
= Mode
;
2334 Sync the device's output mode to console splitter's mode list.
2336 @param Private Text Out Splitter pointer.
2337 @param TextOut Simple Text Output protocol pointer.
2341 ConSplitterSyncOutputMode (
2342 IN TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
,
2343 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
2346 INT32 CurrentMaxMode
;
2349 INT32
*TextOutModeMap
;
2352 TEXT_OUT_SPLITTER_QUERY_DATA
*TextOutQueryData
;
2359 // Must make sure that current mode won't change even if mode number changes
2361 CurrentMaxMode
= Private
->TextOutMode
.MaxMode
;
2362 TextOutModeMap
= Private
->TextOutModeMap
;
2363 StepSize
= Private
->TextOutListCount
;
2364 TextOutQueryData
= Private
->TextOutQueryData
;
2367 // Query all the mode that the newly added TextOut supports
2370 MapTable
= TextOutModeMap
+ Private
->CurrentNumberOfConsoles
;
2371 while (Mode
< TextOut
->Mode
->MaxMode
) {
2372 Status
= TextOut
->QueryMode (TextOut
, Mode
, &Columns
, &Rows
);
2374 if (EFI_ERROR(Status
)) {
2377 // If mode 1 (80x50) is not supported, make sure mode 1 in TextOutQueryData
2380 MapTable
[StepSize
] = Mode
;
2381 TextOutQueryData
[Mode
].Columns
= 0;
2382 TextOutQueryData
[Mode
].Rows
= 0;
2388 // Search the intersection map and QueryData database to see if they intersects
2391 while (Index
< CurrentMaxMode
) {
2392 QueryMode
= *(TextOutModeMap
+ Index
* StepSize
);
2393 if ((TextOutQueryData
[QueryMode
].Rows
== Rows
) && (TextOutQueryData
[QueryMode
].Columns
== Columns
)) {
2394 MapTable
[Index
* StepSize
] = Mode
;
2402 // Now search the TextOutModeMap table to find the intersection of supported
2403 // mode between ConSplitter and the newly added device.
2405 ConSplitterGetIntersection (
2410 &Private
->TextOutMode
.MaxMode
,
2411 &Private
->TextOutMode
.Mode
2419 Sync output device between ConOut and StdErr output.
2421 @retval EFI_SUCCESS Sync implemented successfully.
2422 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2426 ConSplitterGetIntersectionBetweenConOutAndStrErr (
2430 UINTN ConOutNumOfConsoles
;
2431 UINTN StdErrNumOfConsoles
;
2432 TEXT_OUT_AND_GOP_DATA
*ConOutTextOutList
;
2433 TEXT_OUT_AND_GOP_DATA
*StdErrTextOutList
;
2437 UINTN ConOutColumns
;
2439 UINTN StdErrColumns
;
2440 INT32 ConOutMaxMode
;
2441 INT32 StdErrMaxMode
;
2446 INT32
*ConOutModeMap
;
2447 INT32
*StdErrModeMap
;
2448 INT32
*ConOutMapTable
;
2449 INT32
*StdErrMapTable
;
2450 TEXT_OUT_SPLITTER_QUERY_DATA
*ConOutQueryData
;
2451 TEXT_OUT_SPLITTER_QUERY_DATA
*StdErrQueryData
;
2452 UINTN ConOutStepSize
;
2453 UINTN StdErrStepSize
;
2454 BOOLEAN FoundTheSameTextOut
;
2455 UINTN ConOutMapTableSize
;
2456 UINTN StdErrMapTableSize
;
2458 ConOutNumOfConsoles
= mConOut
.CurrentNumberOfConsoles
;
2459 StdErrNumOfConsoles
= mStdErr
.CurrentNumberOfConsoles
;
2460 ConOutTextOutList
= mConOut
.TextOutList
;
2461 StdErrTextOutList
= mStdErr
.TextOutList
;
2464 FoundTheSameTextOut
= FALSE
;
2465 while ((Indexi
< ConOutNumOfConsoles
) && (!FoundTheSameTextOut
)) {
2467 while (Indexj
< StdErrNumOfConsoles
) {
2468 if (ConOutTextOutList
->TextOut
== StdErrTextOutList
->TextOut
) {
2469 FoundTheSameTextOut
= TRUE
;
2474 StdErrTextOutList
++;
2478 ConOutTextOutList
++;
2481 if (!FoundTheSameTextOut
) {
2485 // Must make sure that current mode won't change even if mode number changes
2487 ConOutMaxMode
= mConOut
.TextOutMode
.MaxMode
;
2488 ConOutModeMap
= mConOut
.TextOutModeMap
;
2489 ConOutStepSize
= mConOut
.TextOutListCount
;
2490 ConOutQueryData
= mConOut
.TextOutQueryData
;
2492 StdErrMaxMode
= mStdErr
.TextOutMode
.MaxMode
;
2493 StdErrModeMap
= mStdErr
.TextOutModeMap
;
2494 StdErrStepSize
= mStdErr
.TextOutListCount
;
2495 StdErrQueryData
= mStdErr
.TextOutQueryData
;
2498 // Allocate the map table and set the map table's index to -1.
2500 ConOutMapTableSize
= ConOutMaxMode
* sizeof (INT32
);
2501 ConOutMapTable
= AllocateZeroPool (ConOutMapTableSize
);
2502 if (ConOutMapTable
== NULL
) {
2503 return EFI_OUT_OF_RESOURCES
;
2506 SetMem (ConOutMapTable
, ConOutMapTableSize
, 0xFF);
2508 StdErrMapTableSize
= StdErrMaxMode
* sizeof (INT32
);
2509 StdErrMapTable
= AllocateZeroPool (StdErrMapTableSize
);
2510 if (StdErrMapTable
== NULL
) {
2511 return EFI_OUT_OF_RESOURCES
;
2514 SetMem (StdErrMapTable
, StdErrMapTableSize
, 0xFF);
2517 // Find the intersection of the two set of modes. If they actually intersect, the
2518 // correponding entry in the map table is set to 1.
2521 while (Mode
< ConOutMaxMode
) {
2523 // Search the intersection map and QueryData database to see if they intersect
2526 ConOutMode
= *(ConOutModeMap
+ Mode
* ConOutStepSize
);
2527 ConOutRows
= ConOutQueryData
[ConOutMode
].Rows
;
2528 ConOutColumns
= ConOutQueryData
[ConOutMode
].Columns
;
2529 while (Index
< StdErrMaxMode
) {
2530 StdErrMode
= *(StdErrModeMap
+ Index
* StdErrStepSize
);
2531 StdErrRows
= StdErrQueryData
[StdErrMode
].Rows
;
2532 StdErrColumns
= StdErrQueryData
[StdErrMode
].Columns
;
2533 if ((StdErrRows
== ConOutRows
) && (StdErrColumns
== ConOutColumns
)) {
2534 ConOutMapTable
[Mode
] = 1;
2535 StdErrMapTable
[Index
] = 1;
2545 // Now search the TextOutModeMap table to find the intersection of supported
2546 // mode between ConSplitter and the newly added device.
2548 ConSplitterGetIntersection (
2551 mConOut
.TextOutListCount
,
2553 &(mConOut
.TextOutMode
.MaxMode
),
2554 &(mConOut
.TextOutMode
.Mode
)
2557 if (mConOut
.TextOutMode
.Mode
< 0) {
2558 mConOut
.TextOut
.SetMode (&(mConOut
.TextOut
), 0);
2561 ConSplitterGetIntersection (
2564 mStdErr
.TextOutListCount
,
2566 &(mStdErr
.TextOutMode
.MaxMode
),
2567 &(mStdErr
.TextOutMode
.Mode
)
2570 if (mStdErr
.TextOutMode
.Mode
< 0) {
2571 mStdErr
.TextOut
.SetMode (&(mStdErr
.TextOut
), 0);
2574 FreePool (ConOutMapTable
);
2575 FreePool (StdErrMapTable
);
2582 Add Grahpics Output modes into Consplitter Text Out list.
2584 @param Private Text Out Splitter pointer.
2585 @param GraphicsOutput Graphics Output protocol pointer.
2586 @param UgaDraw UGA Draw protocol pointer.
2588 @retval EFI_SUCCESS Output mode added successfully.
2589 @retval other Failed to add output mode.
2593 ConSplitterAddGraphicsOutputMode (
2594 IN TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
,
2595 IN EFI_GRAPHICS_OUTPUT_PROTOCOL
*GraphicsOutput
,
2596 IN EFI_UGA_DRAW_PROTOCOL
*UgaDraw
2602 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Mode
;
2604 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Info
;
2605 EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE
*CurrentGraphicsOutputMode
;
2606 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*ModeBuffer
;
2607 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*MatchedMode
;
2610 BOOLEAN AlreadyExist
;
2611 UINT32 UgaHorizontalResolution
;
2612 UINT32 UgaVerticalResolution
;
2613 UINT32 UgaColorDepth
;
2614 UINT32 UgaRefreshRate
;
2616 ASSERT (GraphicsOutput
!= NULL
|| UgaDraw
!= NULL
);
2618 CurrentGraphicsOutputMode
= Private
->GraphicsOutput
.Mode
;
2622 Status
= EFI_SUCCESS
;
2624 if (Private
->CurrentNumberOfUgaDraw
!= 0) {
2626 // If any UGA device has already been added, then there is no need to
2627 // calculate intersection of display mode of different GOP/UGA device,
2628 // since only one display mode will be exported (i.e. user-defined mode)
2633 if (GraphicsOutput
!= NULL
) {
2634 if (Private
->CurrentNumberOfGraphicsOutput
== 0) {
2636 // This is the first Graphics Output device added
2638 CurrentGraphicsOutputMode
->MaxMode
= GraphicsOutput
->Mode
->MaxMode
;
2639 CurrentGraphicsOutputMode
->Mode
= GraphicsOutput
->Mode
->Mode
;
2640 CopyMem (CurrentGraphicsOutputMode
->Info
, GraphicsOutput
->Mode
->Info
, GraphicsOutput
->Mode
->SizeOfInfo
);
2641 CurrentGraphicsOutputMode
->SizeOfInfo
= GraphicsOutput
->Mode
->SizeOfInfo
;
2642 CurrentGraphicsOutputMode
->FrameBufferBase
= GraphicsOutput
->Mode
->FrameBufferBase
;
2643 CurrentGraphicsOutputMode
->FrameBufferSize
= GraphicsOutput
->Mode
->FrameBufferSize
;
2646 // Allocate resource for the private mode buffer
2648 ModeBuffer
= AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
) * GraphicsOutput
->Mode
->MaxMode
);
2649 if (ModeBuffer
== NULL
) {
2650 return EFI_OUT_OF_RESOURCES
;
2652 FreePool (Private
->GraphicsOutputModeBuffer
);
2653 Private
->GraphicsOutputModeBuffer
= ModeBuffer
;
2656 // Store all supported display modes to the private mode buffer
2659 for (Index
= 0; Index
< GraphicsOutput
->Mode
->MaxMode
; Index
++) {
2661 // The Info buffer would be allocated by callee
2663 Status
= GraphicsOutput
->QueryMode (GraphicsOutput
, (UINT32
) Index
, &SizeOfInfo
, &Info
);
2664 if (EFI_ERROR (Status
)) {
2667 ASSERT ( SizeOfInfo
<= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
));
2668 CopyMem (Mode
, Info
, SizeOfInfo
);
2674 // Check intersection of display mode
2676 ModeBuffer
= AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
) * CurrentGraphicsOutputMode
->MaxMode
);
2677 if (ModeBuffer
== NULL
) {
2678 return EFI_OUT_OF_RESOURCES
;
2681 MatchedMode
= ModeBuffer
;
2682 Mode
= &Private
->GraphicsOutputModeBuffer
[0];
2683 for (Index
= 0; Index
< CurrentGraphicsOutputMode
->MaxMode
; Index
++) {
2686 for (NumberIndex
= 0; NumberIndex
< GraphicsOutput
->Mode
->MaxMode
; NumberIndex
++) {
2688 // The Info buffer would be allocated by callee
2690 Status
= GraphicsOutput
->QueryMode (GraphicsOutput
, (UINT32
) NumberIndex
, &SizeOfInfo
, &Info
);
2691 if (EFI_ERROR (Status
)) {
2694 if ((Info
->HorizontalResolution
== Mode
->HorizontalResolution
) &&
2695 (Info
->VerticalResolution
== Mode
->VerticalResolution
)) {
2697 // If GOP device supports one mode in current mode buffer,
2698 // it will be added into matched mode buffer
2708 AlreadyExist
= FALSE
;
2711 // Check if GOP mode has been in the mode buffer, ModeBuffer = MatchedMode at begin.
2713 for (Info
= ModeBuffer
; Info
< MatchedMode
; Info
++) {
2714 if ((Info
->HorizontalResolution
== Mode
->HorizontalResolution
) &&
2715 (Info
->VerticalResolution
== Mode
->VerticalResolution
)) {
2716 AlreadyExist
= TRUE
;
2721 if (!AlreadyExist
) {
2722 CopyMem (MatchedMode
, Mode
, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
));
2725 // Physical frame buffer is no longer available, change PixelFormat to PixelBltOnly
2727 MatchedMode
->Version
= 0;
2728 MatchedMode
->PixelFormat
= PixelBltOnly
;
2729 ZeroMem (&MatchedMode
->PixelInformation
, sizeof (EFI_PIXEL_BITMASK
));
2739 // Drop the old mode buffer, assign it to a new one
2741 FreePool (Private
->GraphicsOutputModeBuffer
);
2742 Private
->GraphicsOutputModeBuffer
= ModeBuffer
;
2745 // Physical frame buffer is no longer available when there are more than one physical GOP devices
2747 CurrentGraphicsOutputMode
->MaxMode
= (UINT32
) (((UINTN
) MatchedMode
- (UINTN
) ModeBuffer
) / sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
));
2748 CurrentGraphicsOutputMode
->Info
->PixelFormat
= PixelBltOnly
;
2749 ZeroMem (&CurrentGraphicsOutputMode
->Info
->PixelInformation
, sizeof (EFI_PIXEL_BITMASK
));
2750 CurrentGraphicsOutputMode
->SizeOfInfo
= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
);
2751 CurrentGraphicsOutputMode
->FrameBufferBase
= (EFI_PHYSICAL_ADDRESS
) (UINTN
) NULL
;
2752 CurrentGraphicsOutputMode
->FrameBufferSize
= 0;
2756 // Graphics console driver can ensure the same mode for all GOP devices
2758 for (Index
= 0; Index
< CurrentGraphicsOutputMode
->MaxMode
; Index
++) {
2759 Mode
= &Private
->GraphicsOutputModeBuffer
[Index
];
2760 if ((Mode
->HorizontalResolution
== GraphicsOutput
->Mode
->Info
->HorizontalResolution
) &&
2761 (Mode
->VerticalResolution
== GraphicsOutput
->Mode
->Info
->VerticalResolution
)) {
2762 CurrentIndex
= Index
;
2766 if (Index
>= CurrentGraphicsOutputMode
->MaxMode
) {
2768 // if user defined mode is not found, set to default mode 800x600
2770 for (Index
= 0; Index
< CurrentGraphicsOutputMode
->MaxMode
; Index
++) {
2771 Mode
= &Private
->GraphicsOutputModeBuffer
[Index
];
2772 if ((Mode
->HorizontalResolution
== 800) && (Mode
->VerticalResolution
== 600)) {
2773 CurrentIndex
= Index
;
2778 } else if (UgaDraw
!= NULL
) {
2780 // Graphics console driver can ensure the same mode for all GOP devices
2781 // so we can get the current mode from this video device
2785 &UgaHorizontalResolution
,
2786 &UgaVerticalResolution
,
2791 CurrentGraphicsOutputMode
->MaxMode
= 1;
2792 Info
= CurrentGraphicsOutputMode
->Info
;
2794 Info
->HorizontalResolution
= UgaHorizontalResolution
;
2795 Info
->VerticalResolution
= UgaVerticalResolution
;
2796 Info
->PixelFormat
= PixelBltOnly
;
2797 Info
->PixelsPerScanLine
= UgaHorizontalResolution
;
2798 CurrentGraphicsOutputMode
->SizeOfInfo
= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
);
2799 CurrentGraphicsOutputMode
->FrameBufferBase
= (EFI_PHYSICAL_ADDRESS
) (UINTN
) NULL
;
2800 CurrentGraphicsOutputMode
->FrameBufferSize
= 0;
2803 // Update the private mode buffer
2805 CopyMem (&Private
->GraphicsOutputModeBuffer
[0], Info
, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
));
2808 // Only mode 0 is available to be set
2815 if (GraphicsOutput
!= NULL
) {
2816 Private
->CurrentNumberOfGraphicsOutput
++;
2818 if (UgaDraw
!= NULL
) {
2819 Private
->CurrentNumberOfUgaDraw
++;
2823 // Force GraphicsOutput mode to be set,
2826 Mode
= &Private
->GraphicsOutputModeBuffer
[CurrentIndex
];
2827 if ((GraphicsOutput
!= NULL
) &&
2828 (Mode
->HorizontalResolution
== CurrentGraphicsOutputMode
->Info
->HorizontalResolution
) &&
2829 (Mode
->VerticalResolution
== CurrentGraphicsOutputMode
->Info
->VerticalResolution
)) {
2830 CurrentGraphicsOutputMode
->Mode
= (UINT32
) CurrentIndex
;
2831 if ((Mode
->HorizontalResolution
!= GraphicsOutput
->Mode
->Info
->HorizontalResolution
) ||
2832 (Mode
->VerticalResolution
!= GraphicsOutput
->Mode
->Info
->VerticalResolution
)) {
2834 // If all existing video device has been set to common mode, only set new GOP device to
2837 for (NumberIndex
= 0; NumberIndex
< GraphicsOutput
->Mode
->MaxMode
; NumberIndex
++) {
2838 Status
= GraphicsOutput
->QueryMode (GraphicsOutput
, (UINT32
) NumberIndex
, &SizeOfInfo
, &Info
);
2839 if (EFI_ERROR (Status
)) {
2842 if ((Info
->HorizontalResolution
== Mode
->HorizontalResolution
) && (Info
->VerticalResolution
== Mode
->VerticalResolution
)) {
2848 Status
= GraphicsOutput
->SetMode (GraphicsOutput
, (UINT32
) NumberIndex
);
2852 // Current mode number may need update now, so set it to an invalid mode number
2854 CurrentGraphicsOutputMode
->Mode
= 0xffff;
2856 // Graphics console can ensure all GOP devices have the same mode which can be taken as current mode.
2858 Status
= Private
->GraphicsOutput
.SetMode (&Private
->GraphicsOutput
, (UINT32
) CurrentIndex
);
2859 if (EFI_ERROR(Status
)) {
2861 // If user defined mode is not valid for display device, set to the default mode 800x600.
2863 (Private
->GraphicsOutputModeBuffer
[0]).HorizontalResolution
= 800;
2864 (Private
->GraphicsOutputModeBuffer
[0]).VerticalResolution
= 600;
2865 Status
= Private
->GraphicsOutput
.SetMode (&Private
->GraphicsOutput
, 0);
2873 Set the current console out mode.
2875 This routine will get the current console mode information (column, row)
2876 from ConsoleOutMode variable and set it; if the variable does not exist,
2877 set to user defined console mode.
2879 @param Private Consplitter Text Out pointer.
2883 ConsplitterSetConsoleOutMode (
2884 IN TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
2894 CONSOLE_OUT_MODE ModeInfo
;
2895 CONSOLE_OUT_MODE MaxModeInfo
;
2896 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
;
2900 TextOut
= &Private
->TextOut
;
2901 MaxMode
= (UINTN
) (TextOut
->Mode
->MaxMode
);
2903 MaxModeInfo
.Column
= 0;
2904 MaxModeInfo
.Row
= 0;
2905 ModeInfo
.Column
= PcdGet32 (PcdConOutColumn
);
2906 ModeInfo
.Row
= PcdGet32 (PcdConOutRow
);
2909 // To find the prefer mode and basic mode from Text Out mode list
2911 for (Mode
= 0; Mode
< MaxMode
; Mode
++) {
2912 Status
= TextOut
->QueryMode (TextOut
, Mode
, &Col
, &Row
);
2913 if (!EFI_ERROR(Status
)) {
2914 if ((ModeInfo
.Column
!= 0) && (ModeInfo
.Row
!= 0)) {
2916 // Use user defined column and row
2918 if (Col
== ModeInfo
.Column
&& Row
== ModeInfo
.Row
) {
2923 // If user sets PcdConOutColumn or PcdConOutRow to 0,
2924 // find and set the highest text mode.
2926 if ((Col
>= MaxModeInfo
.Column
) && (Row
>= MaxModeInfo
.Row
)) {
2927 MaxModeInfo
.Column
= Col
;
2928 MaxModeInfo
.Row
= Row
;
2932 if (Col
== 80 && Row
== 25) {
2939 // Set prefer mode to Text Out devices.
2941 Status
= TextOut
->SetMode (TextOut
, PreferMode
);
2942 if (EFI_ERROR(Status
)) {
2944 // if current mode setting is failed, default 80x25 mode will be set.
2946 Status
= TextOut
->SetMode (TextOut
, BaseMode
);
2947 ASSERT(!EFI_ERROR(Status
));
2949 PcdSet32 (PcdConOutColumn
, 80);
2950 PcdSet32 (PcdConOutRow
, 25);
2958 Add Text Output Device in Consplitter Text Output list.
2960 @param Private Text Out Splitter pointer.
2961 @param TextOut Simple Text Output protocol pointer.
2962 @param GraphicsOutput Graphics Output protocol pointer.
2963 @param UgaDraw UGA Draw protocol pointer.
2965 @retval EFI_SUCCESS Text Output Device added successfully.
2966 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2970 ConSplitterTextOutAddDevice (
2971 IN TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
,
2972 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
,
2973 IN EFI_GRAPHICS_OUTPUT_PROTOCOL
*GraphicsOutput
,
2974 IN EFI_UGA_DRAW_PROTOCOL
*UgaDraw
2978 UINTN CurrentNumOfConsoles
;
2980 UINT32 UgaHorizontalResolution
;
2981 UINT32 UgaVerticalResolution
;
2982 UINT32 UgaColorDepth
;
2983 UINT32 UgaRefreshRate
;
2984 TEXT_OUT_AND_GOP_DATA
*TextAndGop
;
2986 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Info
;
2987 EFI_STATUS DeviceStatus
;
2989 Status
= EFI_SUCCESS
;
2990 CurrentNumOfConsoles
= Private
->CurrentNumberOfConsoles
;
2993 // If the Text Out List is full, enlarge it by calling ConSplitterGrowBuffer().
2995 while (CurrentNumOfConsoles
>= Private
->TextOutListCount
) {
2996 Status
= ConSplitterGrowBuffer (
2997 sizeof (TEXT_OUT_AND_GOP_DATA
),
2998 &Private
->TextOutListCount
,
2999 (VOID
**) &Private
->TextOutList
3001 if (EFI_ERROR (Status
)) {
3002 return EFI_OUT_OF_RESOURCES
;
3005 // Also need to reallocate the TextOutModeMap table
3007 Status
= ConSplitterGrowMapTable (Private
);
3008 if (EFI_ERROR (Status
)) {
3009 return EFI_OUT_OF_RESOURCES
;
3013 TextAndGop
= &Private
->TextOutList
[CurrentNumOfConsoles
];
3015 TextAndGop
->TextOut
= TextOut
;
3016 TextAndGop
->GraphicsOutput
= GraphicsOutput
;
3017 TextAndGop
->UgaDraw
= UgaDraw
;
3019 if (CurrentNumOfConsoles
== 0) {
3021 // Add the first device's output mode to console splitter's mode list
3023 Status
= ConSplitterAddOutputMode (Private
, TextOut
);
3025 ConSplitterSyncOutputMode (Private
, TextOut
);
3028 Private
->CurrentNumberOfConsoles
++;
3031 // Scan both TextOutList, for the intersection TextOut device
3032 // maybe both ConOut and StdErr incorporate the same Text Out
3033 // device in them, thus the output of both should be synced.
3035 ConSplitterGetIntersectionBetweenConOutAndStrErr ();
3037 MaxMode
= Private
->TextOutMode
.MaxMode
;
3038 ASSERT (MaxMode
>= 1);
3040 DeviceStatus
= EFI_DEVICE_ERROR
;
3041 Status
= EFI_DEVICE_ERROR
;
3044 // This device display mode will be added into Graphics Ouput modes.
3046 if ((GraphicsOutput
!= NULL
) || (UgaDraw
!= NULL
)) {
3047 DeviceStatus
= ConSplitterAddGraphicsOutputMode (Private
, GraphicsOutput
, UgaDraw
);
3050 if (FeaturePcdGet (PcdConOutUgaSupport
)) {
3052 // If UGA is produced by Consplitter
3054 if (GraphicsOutput
!= NULL
) {
3055 Status
= GraphicsOutput
->QueryMode (GraphicsOutput
, GraphicsOutput
->Mode
->Mode
, &SizeOfInfo
, &Info
);
3056 if (EFI_ERROR (Status
)) {
3059 ASSERT ( SizeOfInfo
<= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
));
3061 UgaHorizontalResolution
= Info
->HorizontalResolution
;
3062 UgaVerticalResolution
= Info
->VerticalResolution
;
3066 } else if (UgaDraw
!= NULL
) {
3067 Status
= UgaDraw
->GetMode (
3069 &UgaHorizontalResolution
,
3070 &UgaVerticalResolution
,
3074 if (!EFI_ERROR (Status
) && EFI_ERROR (DeviceStatus
)) {
3076 // if GetMode is successfully and UGA device hasn't been set, set it
3078 Status
= ConSplitterUgaDrawSetMode (
3080 UgaHorizontalResolution
,
3081 UgaVerticalResolution
,
3087 // If GetMode/SetMode is failed, set to 800x600 mode
3089 if(EFI_ERROR (Status
)) {
3090 Status
= ConSplitterUgaDrawSetMode (
3101 if (((!EFI_ERROR (DeviceStatus
)) || (!EFI_ERROR (Status
))) &&
3102 ((Private
->CurrentNumberOfGraphicsOutput
+ Private
->CurrentNumberOfUgaDraw
) == 1)) {
3103 if (!FeaturePcdGet (PcdConOutGopSupport
)) {
3105 // If Graphics Outpurt protocol not supported, UGA Draw protocol is installed
3106 // on the virtual handle.
3108 Status
= gBS
->InstallMultipleProtocolInterfaces (
3109 &mConOut
.VirtualHandle
,
3110 &gEfiUgaDrawProtocolGuid
,
3114 } else if (!FeaturePcdGet (PcdConOutUgaSupport
)) {
3116 // If UGA Draw protocol not supported, Graphics Output Protocol is installed
3117 // on virtual handle.
3119 Status
= gBS
->InstallMultipleProtocolInterfaces (
3120 &mConOut
.VirtualHandle
,
3121 &gEfiGraphicsOutputProtocolGuid
,
3122 &mConOut
.GraphicsOutput
,
3127 // Boot Graphics Output protocol and UGA Draw protocol are supported,
3128 // both they will be installed on virtual handle.
3130 Status
= gBS
->InstallMultipleProtocolInterfaces (
3131 &mConOut
.VirtualHandle
,
3132 &gEfiGraphicsOutputProtocolGuid
,
3133 &mConOut
.GraphicsOutput
,
3134 &gEfiUgaDrawProtocolGuid
,
3142 // After adding new console device, all existing console devices should be
3143 // synced to the current shared mode.
3145 ConsplitterSetConsoleOutMode (Private
);
3152 Remove Text Out Device in Consplitter Text Out list.
3154 @param Private Text Out Splitter pointer.
3155 @param TextOut Simple Text Output Pointer protocol pointer.
3157 @retval EFI_SUCCESS Text Out Device removed successfully.
3158 @retval EFI_NOT_FOUND No Text Out Device found.
3162 ConSplitterTextOutDeleteDevice (
3163 IN TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
,
3164 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*TextOut
3168 UINTN CurrentNumOfConsoles
;
3169 TEXT_OUT_AND_GOP_DATA
*TextOutList
;
3173 // Remove the specified text-out device data structure from the Text out List,
3174 // and rearrange the remaining data structures in the Text out List.
3176 CurrentNumOfConsoles
= Private
->CurrentNumberOfConsoles
;
3177 Index
= (INT32
) CurrentNumOfConsoles
- 1;
3178 TextOutList
= Private
->TextOutList
;
3179 while (Index
>= 0) {
3180 if (TextOutList
->TextOut
== TextOut
) {
3181 if (TextOutList
->UgaDraw
!= NULL
) {
3182 Private
->CurrentNumberOfUgaDraw
--;
3184 if (TextOutList
->GraphicsOutput
!= NULL
) {
3185 Private
->CurrentNumberOfGraphicsOutput
--;
3187 CopyMem (TextOutList
, TextOutList
+ 1, sizeof (TEXT_OUT_AND_GOP_DATA
) * Index
);
3188 CurrentNumOfConsoles
--;
3196 // The specified TextOut is not managed by the ConSplitter driver
3199 return EFI_NOT_FOUND
;
3202 if (CurrentNumOfConsoles
== 0) {
3204 // If the number of consoles is zero, reset all parameters
3206 Private
->CurrentNumberOfConsoles
= 0;
3207 Private
->TextOutMode
.MaxMode
= 1;
3208 Private
->TextOutQueryData
[0].Columns
= 80;
3209 Private
->TextOutQueryData
[0].Rows
= 25;
3210 TextOutSetMode (Private
, 0);
3215 // Max Mode is realy an intersection of the QueryMode command to all
3216 // devices. So we must copy the QueryMode of the first device to
3220 Private
->TextOutQueryData
,
3221 Private
->TextOutQueryDataCount
* sizeof (TEXT_OUT_SPLITTER_QUERY_DATA
)
3224 FreePool (Private
->TextOutModeMap
);
3225 Private
->TextOutModeMap
= NULL
;
3226 TextOutList
= Private
->TextOutList
;
3229 // Add the first TextOut to the QueryData array and ModeMap table
3231 Status
= ConSplitterAddOutputMode (Private
, TextOutList
->TextOut
);
3234 // Now add one by one
3237 Private
->CurrentNumberOfConsoles
= 1;
3239 while ((UINTN
) Index
< CurrentNumOfConsoles
) {
3240 ConSplitterSyncOutputMode (Private
, TextOutList
->TextOut
);
3242 Private
->CurrentNumberOfConsoles
++;
3246 ConSplitterGetIntersectionBetweenConOutAndStrErr ();
3253 Reset the input device and optionaly run diagnostics
3255 @param This Protocol instance pointer.
3256 @param ExtendedVerification Driver may perform diagnostics on reset.
3258 @retval EFI_SUCCESS The device was reset.
3259 @retval EFI_DEVICE_ERROR The device is not functioning properly and could
3265 ConSplitterTextInReset (
3266 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*This
,
3267 IN BOOLEAN ExtendedVerification
3271 EFI_STATUS ReturnStatus
;
3272 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3275 Private
= TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
3277 Private
->KeyEventSignalState
= FALSE
;
3280 // return the worst status met
3282 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
3283 Status
= Private
->TextInList
[Index
]->Reset (
3284 Private
->TextInList
[Index
],
3285 ExtendedVerification
3287 if (EFI_ERROR (Status
)) {
3288 ReturnStatus
= Status
;
3292 return ReturnStatus
;
3297 Reads the next keystroke from the input device. The WaitForKey Event can
3298 be used to test for existance of a keystroke via WaitForEvent () call.
3300 @param Private Protocol instance pointer.
3301 @param Key Driver may perform diagnostics on reset.
3303 @retval EFI_SUCCESS The keystroke information was returned.
3304 @retval EFI_NOT_READY There was no keystroke data availiable.
3305 @retval EFI_DEVICE_ERROR The keydtroke information was not returned due
3311 ConSplitterTextInPrivateReadKeyStroke (
3312 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
3313 OUT EFI_INPUT_KEY
*Key
3318 EFI_INPUT_KEY CurrentKey
;
3320 Key
->UnicodeChar
= 0;
3321 Key
->ScanCode
= SCAN_NULL
;
3324 // if no physical console input device exists, return EFI_NOT_READY;
3325 // if any physical console input device has key input,
3326 // return the key and EFI_SUCCESS.
3328 for (Index
= 0; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
3329 Status
= Private
->TextInList
[Index
]->ReadKeyStroke (
3330 Private
->TextInList
[Index
],
3333 if (!EFI_ERROR (Status
)) {
3339 return EFI_NOT_READY
;
3345 Reads the next keystroke from the input device. The WaitForKey Event can
3346 be used to test for existance of a keystroke via WaitForEvent () call.
3348 @param This Protocol instance pointer.
3349 @param Key Driver may perform diagnostics on reset.
3351 @retval EFI_SUCCESS The keystroke information was returned.
3352 @retval EFI_NOT_READY There was no keystroke data availiable.
3353 @retval EFI_DEVICE_ERROR The keydtroke information was not returned due
3359 ConSplitterTextInReadKeyStroke (
3360 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*This
,
3361 OUT EFI_INPUT_KEY
*Key
3364 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3366 Private
= TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
3368 Private
->KeyEventSignalState
= FALSE
;
3371 // Signal ConnectConIn event on first call in Lazy ConIn mode
3373 if (!mConInIsConnect
&& PcdGetBool (PcdConInConnectOnDemand
)) {
3374 DEBUG ((EFI_D_INFO
, "Connect ConIn in first ReadKeyStoke in Lazy ConIn mode.\n"));
3375 gBS
->SignalEvent (Private
->ConnectConInEvent
);
3376 mConInIsConnect
= TRUE
;
3379 return ConSplitterTextInPrivateReadKeyStroke (Private
, Key
);
3384 This event aggregates all the events of the ConIn devices in the spliter.
3386 If any events of physical ConIn devices are signaled, signal the ConIn
3387 spliter event. This will cause the calling code to call
3388 ConSplitterTextInReadKeyStroke ().
3390 @param Event The Event assoicated with callback.
3391 @param Context Context registered when Event was created.
3396 ConSplitterTextInWaitForKey (
3402 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3405 Private
= (TEXT_IN_SPLITTER_PRIVATE_DATA
*) Context
;
3407 if (Private
->KeyEventSignalState
) {
3409 // If KeyEventSignalState is flagged before, and not cleared by Reset() or ReadKeyStroke()
3411 gBS
->SignalEvent (Event
);
3416 // If any physical console input device has key input, signal the event.
3418 for (Index
= 0; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
3419 Status
= gBS
->CheckEvent (Private
->TextInList
[Index
]->WaitForKey
);
3420 if (!EFI_ERROR (Status
)) {
3421 gBS
->SignalEvent (Event
);
3422 Private
->KeyEventSignalState
= TRUE
;
3430 Test if the key has been registered on input device.
3432 @param RegsiteredData A pointer to a buffer that is filled in with the
3433 keystroke state data for the key that was
3435 @param InputData A pointer to a buffer that is filled in with the
3436 keystroke state data for the key that was
3439 @retval TRUE Key be pressed matches a registered key.
3440 @retval FLASE Match failed.
3445 IN EFI_KEY_DATA
*RegsiteredData
,
3446 IN EFI_KEY_DATA
*InputData
3449 ASSERT (RegsiteredData
!= NULL
&& InputData
!= NULL
);
3451 if ((RegsiteredData
->Key
.ScanCode
!= InputData
->Key
.ScanCode
) ||
3452 (RegsiteredData
->Key
.UnicodeChar
!= InputData
->Key
.UnicodeChar
)) {
3457 // Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.
3459 if (RegsiteredData
->KeyState
.KeyShiftState
!= 0 &&
3460 RegsiteredData
->KeyState
.KeyShiftState
!= InputData
->KeyState
.KeyShiftState
) {
3463 if (RegsiteredData
->KeyState
.KeyToggleState
!= 0 &&
3464 RegsiteredData
->KeyState
.KeyToggleState
!= InputData
->KeyState
.KeyToggleState
) {
3474 Reset the input device and optionaly run diagnostics
3476 @param This Protocol instance pointer.
3477 @param ExtendedVerification Driver may perform diagnostics on reset.
3479 @retval EFI_SUCCESS The device was reset.
3480 @retval EFI_DEVICE_ERROR The device is not functioning properly and could
3486 ConSplitterTextInResetEx (
3487 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*This
,
3488 IN BOOLEAN ExtendedVerification
3492 EFI_STATUS ReturnStatus
;
3493 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3496 Private
= TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
3498 Private
->KeyEventSignalState
= FALSE
;
3501 // return the worst status met
3503 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfExConsoles
; Index
++) {
3504 Status
= Private
->TextInExList
[Index
]->Reset (
3505 Private
->TextInExList
[Index
],
3506 ExtendedVerification
3508 if (EFI_ERROR (Status
)) {
3509 ReturnStatus
= Status
;
3513 return ReturnStatus
;
3519 Reads the next keystroke from the input device. The WaitForKey Event can
3520 be used to test for existance of a keystroke via WaitForEvent () call.
3522 @param This Protocol instance pointer.
3523 @param KeyData A pointer to a buffer that is filled in with the
3524 keystroke state data for the key that was
3527 @retval EFI_SUCCESS The keystroke information was returned.
3528 @retval EFI_NOT_READY There was no keystroke data availiable.
3529 @retval EFI_DEVICE_ERROR The keystroke information was not returned due
3531 @retval EFI_INVALID_PARAMETER KeyData is NULL.
3536 ConSplitterTextInReadKeyStrokeEx (
3537 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*This
,
3538 OUT EFI_KEY_DATA
*KeyData
3541 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3544 EFI_KEY_DATA CurrentKeyData
;
3547 if (KeyData
== NULL
) {
3548 return EFI_INVALID_PARAMETER
;
3551 Private
= TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
3553 Private
->KeyEventSignalState
= FALSE
;
3555 KeyData
->Key
.UnicodeChar
= 0;
3556 KeyData
->Key
.ScanCode
= SCAN_NULL
;
3559 // Signal ConnectConIn event on first call in Lazy ConIn mode
3561 if (!mConInIsConnect
&& PcdGetBool (PcdConInConnectOnDemand
)) {
3562 DEBUG ((EFI_D_INFO
, "Connect ConIn in first ReadKeyStoke in Lazy ConIn mode.\n"));
3563 gBS
->SignalEvent (Private
->ConnectConInEvent
);
3564 mConInIsConnect
= TRUE
;
3568 // if no physical console input device exists, return EFI_NOT_READY;
3569 // if any physical console input device has key input,
3570 // return the key and EFI_SUCCESS.
3572 for (Index
= 0; Index
< Private
->CurrentNumberOfExConsoles
; Index
++) {
3573 Status
= Private
->TextInExList
[Index
]->ReadKeyStrokeEx (
3574 Private
->TextInExList
[Index
],
3577 if (!EFI_ERROR (Status
)) {
3578 CopyMem (KeyData
, &CurrentKeyData
, sizeof (CurrentKeyData
));
3583 return EFI_NOT_READY
;
3588 Set certain state for the input device.
3590 @param This Protocol instance pointer.
3591 @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
3592 state for the input device.
3594 @retval EFI_SUCCESS The device state was set successfully.
3595 @retval EFI_DEVICE_ERROR The device is not functioning correctly and
3596 could not have the setting adjusted.
3597 @retval EFI_UNSUPPORTED The device does not have the ability to set its
3599 @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
3604 ConSplitterTextInSetState (
3605 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*This
,
3606 IN EFI_KEY_TOGGLE_STATE
*KeyToggleState
3609 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3613 if (KeyToggleState
== NULL
) {
3614 return EFI_INVALID_PARAMETER
;
3617 Private
= TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
3620 // if no physical console input device exists, return EFI_SUCCESS;
3621 // otherwise return the status of setting state of physical console input device
3623 for (Index
= 0; Index
< Private
->CurrentNumberOfExConsoles
; Index
++) {
3624 Status
= Private
->TextInExList
[Index
]->SetState (
3625 Private
->TextInExList
[Index
],
3628 if (EFI_ERROR (Status
)) {
3639 Register a notification function for a particular keystroke for the input device.
3641 @param This Protocol instance pointer.
3642 @param KeyData A pointer to a buffer that is filled in with the
3643 keystroke information data for the key that was
3645 @param KeyNotificationFunction Points to the function to be called when the key
3646 sequence is typed specified by KeyData.
3647 @param NotifyHandle Points to the unique handle assigned to the
3648 registered notification.
3650 @retval EFI_SUCCESS The notification function was registered
3652 @retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data
3654 @retval EFI_INVALID_PARAMETER KeyData or KeyNotificationFunction or NotifyHandle is NULL.
3659 ConSplitterTextInRegisterKeyNotify (
3660 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*This
,
3661 IN EFI_KEY_DATA
*KeyData
,
3662 IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction
,
3663 OUT VOID
**NotifyHandle
3666 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3669 TEXT_IN_EX_SPLITTER_NOTIFY
*NewNotify
;
3671 TEXT_IN_EX_SPLITTER_NOTIFY
*CurrentNotify
;
3674 if (KeyData
== NULL
|| NotifyHandle
== NULL
|| KeyNotificationFunction
== NULL
) {
3675 return EFI_INVALID_PARAMETER
;
3678 Private
= TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
3681 // Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.
3683 for (Link
= Private
->NotifyList
.ForwardLink
; Link
!= &Private
->NotifyList
; Link
= Link
->ForwardLink
) {
3684 CurrentNotify
= TEXT_IN_EX_SPLITTER_NOTIFY_FROM_THIS (Link
);
3685 if (IsKeyRegistered (&CurrentNotify
->KeyData
, KeyData
)) {
3686 if (CurrentNotify
->KeyNotificationFn
== KeyNotificationFunction
) {
3687 *NotifyHandle
= CurrentNotify
;
3694 // Allocate resource to save the notification function
3696 NewNotify
= (TEXT_IN_EX_SPLITTER_NOTIFY
*) AllocateZeroPool (sizeof (TEXT_IN_EX_SPLITTER_NOTIFY
));
3697 if (NewNotify
== NULL
) {
3698 return EFI_OUT_OF_RESOURCES
;
3700 NewNotify
->NotifyHandleList
= (EFI_HANDLE
*) AllocateZeroPool (sizeof (EFI_HANDLE
) * Private
->TextInExListCount
);
3701 if (NewNotify
->NotifyHandleList
== NULL
) {
3702 gBS
->FreePool (NewNotify
);
3703 return EFI_OUT_OF_RESOURCES
;
3705 NewNotify
->Signature
= TEXT_IN_EX_SPLITTER_NOTIFY_SIGNATURE
;
3706 NewNotify
->KeyNotificationFn
= KeyNotificationFunction
;
3707 CopyMem (&NewNotify
->KeyData
, KeyData
, sizeof (EFI_KEY_DATA
));
3710 // Return the wrong status of registering key notify of
3711 // physical console input device if meet problems
3713 for (Index
= 0; Index
< Private
->CurrentNumberOfExConsoles
; Index
++) {
3714 Status
= Private
->TextInExList
[Index
]->RegisterKeyNotify (
3715 Private
->TextInExList
[Index
],
3717 KeyNotificationFunction
,
3718 &NewNotify
->NotifyHandleList
[Index
]
3720 if (EFI_ERROR (Status
)) {
3722 // Un-register the key notify on all physical console input devices
3724 while (Index
-- != 0) {
3725 Private
->TextInExList
[Index
]->UnregisterKeyNotify (
3726 Private
->TextInExList
[Index
],
3727 NewNotify
->NotifyHandleList
[Index
]
3730 gBS
->FreePool (NewNotify
->NotifyHandleList
);
3731 gBS
->FreePool (NewNotify
);
3736 InsertTailList (&mConIn
.NotifyList
, &NewNotify
->NotifyEntry
);
3738 *NotifyHandle
= NewNotify
;
3746 Remove a registered notification function from a particular keystroke.
3748 @param This Protocol instance pointer.
3749 @param NotificationHandle The handle of the notification function being
3752 @retval EFI_SUCCESS The notification function was unregistered
3754 @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.
3759 ConSplitterTextInUnregisterKeyNotify (
3760 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*This
,
3761 IN VOID
*NotificationHandle
3764 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3766 TEXT_IN_EX_SPLITTER_NOTIFY
*CurrentNotify
;
3769 if (NotificationHandle
== NULL
) {
3770 return EFI_INVALID_PARAMETER
;
3773 Private
= TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
3775 for (Link
= Private
->NotifyList
.ForwardLink
; Link
!= &Private
->NotifyList
; Link
= Link
->ForwardLink
) {
3776 CurrentNotify
= TEXT_IN_EX_SPLITTER_NOTIFY_FROM_THIS (Link
);
3777 if (CurrentNotify
== NotificationHandle
) {
3778 for (Index
= 0; Index
< Private
->CurrentNumberOfExConsoles
; Index
++) {
3779 Private
->TextInExList
[Index
]->UnregisterKeyNotify (
3780 Private
->TextInExList
[Index
],
3781 CurrentNotify
->NotifyHandleList
[Index
]
3784 RemoveEntryList (&CurrentNotify
->NotifyEntry
);
3786 gBS
->FreePool (CurrentNotify
->NotifyHandleList
);
3787 gBS
->FreePool (CurrentNotify
);
3793 // NotificationHandle is not found in database
3795 return EFI_INVALID_PARAMETER
;
3800 Reset the input device and optionaly run diagnostics
3802 @param This Protocol instance pointer.
3803 @param ExtendedVerification Driver may perform diagnostics on reset.
3805 @retval EFI_SUCCESS The device was reset.
3806 @retval EFI_DEVICE_ERROR The device is not functioning properly and could
3812 ConSplitterSimplePointerReset (
3813 IN EFI_SIMPLE_POINTER_PROTOCOL
*This
,
3814 IN BOOLEAN ExtendedVerification
3818 EFI_STATUS ReturnStatus
;
3819 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3822 Private
= TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_SIMPLE_POINTER_THIS (This
);
3824 Private
->InputEventSignalState
= FALSE
;
3826 if (Private
->CurrentNumberOfPointers
== 0) {
3830 // return the worst status met
3832 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfPointers
; Index
++) {
3833 Status
= Private
->PointerList
[Index
]->Reset (
3834 Private
->PointerList
[Index
],
3835 ExtendedVerification
3837 if (EFI_ERROR (Status
)) {
3838 ReturnStatus
= Status
;
3842 return ReturnStatus
;
3847 Reads the next keystroke from the input device. The WaitForKey Event can
3848 be used to test for existance of a keystroke via WaitForEvent () call.
3850 @param Private Protocol instance pointer.
3851 @param State The state information of simple pointer device.
3853 @retval EFI_SUCCESS The keystroke information was returned.
3854 @retval EFI_NOT_READY There was no keystroke data availiable.
3855 @retval EFI_DEVICE_ERROR The keydtroke information was not returned due
3861 ConSplitterSimplePointerPrivateGetState (
3862 IN TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
,
3863 IN OUT EFI_SIMPLE_POINTER_STATE
*State
3867 EFI_STATUS ReturnStatus
;
3869 EFI_SIMPLE_POINTER_STATE CurrentState
;
3871 State
->RelativeMovementX
= 0;
3872 State
->RelativeMovementY
= 0;
3873 State
->RelativeMovementZ
= 0;
3874 State
->LeftButton
= FALSE
;
3875 State
->RightButton
= FALSE
;
3878 // if no physical console input device exists, return EFI_NOT_READY;
3879 // if any physical console input device has key input,
3880 // return the key and EFI_SUCCESS.
3882 ReturnStatus
= EFI_NOT_READY
;
3883 for (Index
= 0; Index
< Private
->CurrentNumberOfPointers
; Index
++) {
3885 Status
= Private
->PointerList
[Index
]->GetState (
3886 Private
->PointerList
[Index
],
3889 if (!EFI_ERROR (Status
)) {
3890 if (ReturnStatus
== EFI_NOT_READY
) {
3891 ReturnStatus
= EFI_SUCCESS
;
3894 if (CurrentState
.LeftButton
) {
3895 State
->LeftButton
= TRUE
;
3898 if (CurrentState
.RightButton
) {
3899 State
->RightButton
= TRUE
;
3902 if (CurrentState
.RelativeMovementX
!= 0 && Private
->PointerList
[Index
]->Mode
->ResolutionX
!= 0) {
3903 State
->RelativeMovementX
+= (CurrentState
.RelativeMovementX
* (INT32
) Private
->SimplePointerMode
.ResolutionX
) / (INT32
) Private
->PointerList
[Index
]->Mode
->ResolutionX
;
3906 if (CurrentState
.RelativeMovementY
!= 0 && Private
->PointerList
[Index
]->Mode
->ResolutionY
!= 0) {
3907 State
->RelativeMovementY
+= (CurrentState
.RelativeMovementY
* (INT32
) Private
->SimplePointerMode
.ResolutionY
) / (INT32
) Private
->PointerList
[Index
]->Mode
->ResolutionY
;
3910 if (CurrentState
.RelativeMovementZ
!= 0 && Private
->PointerList
[Index
]->Mode
->ResolutionZ
!= 0) {
3911 State
->RelativeMovementZ
+= (CurrentState
.RelativeMovementZ
* (INT32
) Private
->SimplePointerMode
.ResolutionZ
) / (INT32
) Private
->PointerList
[Index
]->Mode
->ResolutionZ
;
3913 } else if (Status
== EFI_DEVICE_ERROR
) {
3914 ReturnStatus
= EFI_DEVICE_ERROR
;
3918 return ReturnStatus
;
3923 Reads the next keystroke from the input device. The WaitForKey Event can
3924 be used to test for existance of a keystroke via WaitForEvent () call.
3926 @param This A pointer to protocol instance.
3927 @param State A pointer to state information on the pointer device
3929 @retval EFI_SUCCESS The keystroke information was returned in State.
3930 @retval EFI_NOT_READY There was no keystroke data availiable.
3931 @retval EFI_DEVICE_ERROR The keydtroke information was not returned due
3937 ConSplitterSimplePointerGetState (
3938 IN EFI_SIMPLE_POINTER_PROTOCOL
*This
,
3939 IN OUT EFI_SIMPLE_POINTER_STATE
*State
3942 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3944 Private
= TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_SIMPLE_POINTER_THIS (This
);
3946 Private
->InputEventSignalState
= FALSE
;
3948 return ConSplitterSimplePointerPrivateGetState (Private
, State
);
3953 This event agregates all the events of the ConIn devices in the spliter.
3954 If any events of physical ConIn devices are signaled, signal the ConIn
3955 spliter event. This will cause the calling code to call
3956 ConSplitterTextInReadKeyStroke ().
3958 @param Event The Event assoicated with callback.
3959 @param Context Context registered when Event was created.
3964 ConSplitterSimplePointerWaitForInput (
3970 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
3973 Private
= (TEXT_IN_SPLITTER_PRIVATE_DATA
*) Context
;
3976 // if InputEventSignalState is flagged before, and not cleared by Reset() or ReadKeyStroke()
3978 if (Private
->InputEventSignalState
) {
3979 gBS
->SignalEvent (Event
);
3983 // if any physical console input device has key input, signal the event.
3985 for (Index
= 0; Index
< Private
->CurrentNumberOfPointers
; Index
++) {
3986 Status
= gBS
->CheckEvent (Private
->PointerList
[Index
]->WaitForInput
);
3987 if (!EFI_ERROR (Status
)) {
3988 gBS
->SignalEvent (Event
);
3989 Private
->InputEventSignalState
= TRUE
;
3995 Resets the pointer device hardware.
3997 @param This Protocol instance pointer.
3998 @param ExtendedVerification Driver may perform diagnostics on reset.
4000 @retval EFI_SUCCESS The device was reset.
4001 @retval EFI_DEVICE_ERROR The device is not functioning correctly and
4007 ConSplitterAbsolutePointerReset (
4008 IN EFI_ABSOLUTE_POINTER_PROTOCOL
*This
,
4009 IN BOOLEAN ExtendedVerification
4013 EFI_STATUS ReturnStatus
;
4014 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
4017 Private
= TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_ABSOLUTE_POINTER_THIS (This
);
4019 Private
->AbsoluteInputEventSignalState
= FALSE
;
4021 if (Private
->CurrentNumberOfAbsolutePointers
== 0) {
4025 // return the worst status met
4027 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfAbsolutePointers
; Index
++) {
4028 Status
= Private
->AbsolutePointerList
[Index
]->Reset (
4029 Private
->AbsolutePointerList
[Index
],
4030 ExtendedVerification
4032 if (EFI_ERROR (Status
)) {
4033 ReturnStatus
= Status
;
4037 return ReturnStatus
;
4042 Retrieves the current state of a pointer device.
4044 @param This Protocol instance pointer.
4045 @param State A pointer to the state information on the
4048 @retval EFI_SUCCESS The state of the pointer device was returned in
4050 @retval EFI_NOT_READY The state of the pointer device has not changed
4051 since the last call to GetState().
4052 @retval EFI_DEVICE_ERROR A device error occurred while attempting to
4053 retrieve the pointer device's current state.
4058 ConSplitterAbsolutePointerGetState (
4059 IN EFI_ABSOLUTE_POINTER_PROTOCOL
*This
,
4060 IN OUT EFI_ABSOLUTE_POINTER_STATE
*State
4063 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
4065 EFI_STATUS ReturnStatus
;
4067 EFI_ABSOLUTE_POINTER_STATE CurrentState
;
4070 Private
= TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_ABSOLUTE_POINTER_THIS (This
);
4072 Private
->AbsoluteInputEventSignalState
= FALSE
;
4074 State
->CurrentX
= 0;
4075 State
->CurrentY
= 0;
4076 State
->CurrentZ
= 0;
4077 State
->ActiveButtons
= 0;
4080 // if no physical pointer device exists, return EFI_NOT_READY;
4081 // if any physical pointer device has changed state,
4082 // return the state and EFI_SUCCESS.
4084 ReturnStatus
= EFI_NOT_READY
;
4085 for (Index
= 0; Index
< Private
->CurrentNumberOfAbsolutePointers
; Index
++) {
4087 Status
= Private
->AbsolutePointerList
[Index
]->GetState (
4088 Private
->AbsolutePointerList
[Index
],
4091 if (!EFI_ERROR (Status
)) {
4092 if (ReturnStatus
== EFI_NOT_READY
) {
4093 ReturnStatus
= EFI_SUCCESS
;
4096 State
->ActiveButtons
= CurrentState
.ActiveButtons
;
4098 if (!(Private
->AbsolutePointerMode
.AbsoluteMinX
== 0 && Private
->AbsolutePointerMode
.AbsoluteMaxX
== 0)) {
4099 State
->CurrentX
= CurrentState
.CurrentX
;
4101 if (!(Private
->AbsolutePointerMode
.AbsoluteMinY
== 0 && Private
->AbsolutePointerMode
.AbsoluteMaxY
== 0)) {
4102 State
->CurrentY
= CurrentState
.CurrentY
;
4104 if (!(Private
->AbsolutePointerMode
.AbsoluteMinZ
== 0 && Private
->AbsolutePointerMode
.AbsoluteMaxZ
== 0)) {
4105 State
->CurrentZ
= CurrentState
.CurrentZ
;
4108 } else if (Status
== EFI_DEVICE_ERROR
) {
4109 ReturnStatus
= EFI_DEVICE_ERROR
;
4113 return ReturnStatus
;
4118 This event agregates all the events of the pointer devices in the splitter.
4119 If any events of physical pointer devices are signaled, signal the pointer
4120 splitter event. This will cause the calling code to call
4121 ConSplitterAbsolutePointerGetState ().
4123 @param Event The Event assoicated with callback.
4124 @param Context Context registered when Event was created.
4129 ConSplitterAbsolutePointerWaitForInput (
4135 TEXT_IN_SPLITTER_PRIVATE_DATA
*Private
;
4138 Private
= (TEXT_IN_SPLITTER_PRIVATE_DATA
*) Context
;
4141 // if AbsoluteInputEventSignalState is flagged before,
4142 // and not cleared by Reset() or GetState(), signal it
4144 if (Private
->AbsoluteInputEventSignalState
) {
4145 gBS
->SignalEvent (Event
);
4149 // if any physical console input device has key input, signal the event.
4151 for (Index
= 0; Index
< Private
->CurrentNumberOfAbsolutePointers
; Index
++) {
4152 Status
= gBS
->CheckEvent (Private
->AbsolutePointerList
[Index
]->WaitForInput
);
4153 if (!EFI_ERROR (Status
)) {
4154 gBS
->SignalEvent (Event
);
4155 Private
->AbsoluteInputEventSignalState
= TRUE
;
4162 Reset the text output device hardware and optionaly run diagnostics
4164 @param This Protocol instance pointer.
4165 @param ExtendedVerification Driver may perform more exhaustive verfication
4166 operation of the device during reset.
4168 @retval EFI_SUCCESS The text output device was reset.
4169 @retval EFI_DEVICE_ERROR The text output device is not functioning
4170 correctly and could not be reset.
4175 ConSplitterTextOutReset (
4176 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
,
4177 IN BOOLEAN ExtendedVerification
4181 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4183 EFI_STATUS ReturnStatus
;
4185 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4188 // return the worst status met
4190 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
4191 Status
= Private
->TextOutList
[Index
].TextOut
->Reset (
4192 Private
->TextOutList
[Index
].TextOut
,
4193 ExtendedVerification
4195 if (EFI_ERROR (Status
)) {
4196 ReturnStatus
= Status
;
4200 This
->SetAttribute (This
, EFI_TEXT_ATTR (This
->Mode
->Attribute
& 0x0F, EFI_BLACK
));
4203 // reset all mode parameters
4205 TextOutSetMode (Private
, 0);
4207 return ReturnStatus
;
4212 Write a Unicode string to the output device.
4214 @param This Protocol instance pointer.
4215 @param WString The NULL-terminated Unicode string to be
4216 displayed on the output device(s). All output
4217 devices must also support the Unicode drawing
4218 defined in this file.
4220 @retval EFI_SUCCESS The string was output to the device.
4221 @retval EFI_DEVICE_ERROR The device reported an error while attempting to
4223 @retval EFI_UNSUPPORTED The output device's mode is not currently in a
4225 @retval EFI_WARN_UNKNOWN_GLYPH This warning code indicates that some of the
4226 characters in the Unicode string could not be
4227 rendered and were skipped.
4232 ConSplitterTextOutOutputString (
4233 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
,
4238 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4240 EFI_STATUS ReturnStatus
;
4244 This
->SetAttribute (This
, This
->Mode
->Attribute
);
4246 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4249 // return the worst status met
4251 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
4252 Status
= Private
->TextOutList
[Index
].TextOut
->OutputString (
4253 Private
->TextOutList
[Index
].TextOut
,
4256 if (EFI_ERROR (Status
)) {
4257 ReturnStatus
= Status
;
4261 if (Private
->CurrentNumberOfConsoles
> 0) {
4262 Private
->TextOutMode
.CursorColumn
= Private
->TextOutList
[0].TextOut
->Mode
->CursorColumn
;
4263 Private
->TextOutMode
.CursorRow
= Private
->TextOutList
[0].TextOut
->Mode
->CursorRow
;
4266 // When there is no real console devices in system,
4267 // update cursor position for the virtual device in consplitter.
4269 Private
->TextOut
.QueryMode (
4271 Private
->TextOutMode
.Mode
,
4275 for (; *WString
!= CHAR_NULL
; WString
++) {
4277 case CHAR_BACKSPACE
:
4278 if (Private
->TextOutMode
.CursorColumn
== 0 && Private
->TextOutMode
.CursorRow
> 0) {
4279 Private
->TextOutMode
.CursorRow
--;
4280 Private
->TextOutMode
.CursorColumn
= (INT32
) (MaxColumn
- 1);
4281 } else if (Private
->TextOutMode
.CursorColumn
> 0) {
4282 Private
->TextOutMode
.CursorColumn
--;
4287 if (Private
->TextOutMode
.CursorRow
< (INT32
) (MaxRow
- 1)) {
4288 Private
->TextOutMode
.CursorRow
++;
4292 case CHAR_CARRIAGE_RETURN
:
4293 Private
->TextOutMode
.CursorColumn
= 0;
4297 if (Private
->TextOutMode
.CursorColumn
< (INT32
) (MaxColumn
- 1)) {
4298 Private
->TextOutMode
.CursorColumn
++;
4300 Private
->TextOutMode
.CursorColumn
= 0;
4301 if (Private
->TextOutMode
.CursorRow
< (INT32
) (MaxRow
- 1)) {
4302 Private
->TextOutMode
.CursorRow
++;
4310 return ReturnStatus
;
4315 Verifies that all characters in a Unicode string can be output to the
4318 @param This Protocol instance pointer.
4319 @param WString The NULL-terminated Unicode string to be
4320 examined for the output device(s).
4322 @retval EFI_SUCCESS The device(s) are capable of rendering the
4324 @retval EFI_UNSUPPORTED Some of the characters in the Unicode string
4325 cannot be rendered by one or more of the output
4326 devices mapped by the EFI handle.
4331 ConSplitterTextOutTestString (
4332 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
,
4337 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4339 EFI_STATUS ReturnStatus
;
4341 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4344 // return the worst status met
4346 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
4347 Status
= Private
->TextOutList
[Index
].TextOut
->TestString (
4348 Private
->TextOutList
[Index
].TextOut
,
4351 if (EFI_ERROR (Status
)) {
4352 ReturnStatus
= Status
;
4356 // There is no DevNullTextOutTestString () since a Unicode buffer would
4357 // always return EFI_SUCCESS.
4358 // ReturnStatus will be EFI_SUCCESS if no consoles are present
4360 return ReturnStatus
;
4365 Returns information for an available text mode that the output device(s)
4368 @param This Protocol instance pointer.
4369 @param ModeNumber The mode number to return information on.
4370 @param Columns Returns the columns of the text output device
4371 for the requested ModeNumber.
4372 @param Rows Returns the rows of the text output device
4373 for the requested ModeNumber.
4375 @retval EFI_SUCCESS The requested mode information was returned.
4376 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4378 @retval EFI_UNSUPPORTED The mode number was not valid.
4383 ConSplitterTextOutQueryMode (
4384 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
,
4385 IN UINTN ModeNumber
,
4390 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4392 INT32
*TextOutModeMap
;
4394 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4397 // Check whether param ModeNumber is valid.
4398 // ModeNumber should be within range 0 ~ MaxMode - 1.
4400 if ( (ModeNumber
> (UINTN
)(((UINT32
)-1)>>1)) ) {
4401 return EFI_UNSUPPORTED
;
4404 if ((INT32
) ModeNumber
>= This
->Mode
->MaxMode
) {
4405 return EFI_UNSUPPORTED
;
4409 // We get the available mode from mode intersection map if it's available
4411 if (Private
->TextOutModeMap
!= NULL
) {
4412 TextOutModeMap
= Private
->TextOutModeMap
+ Private
->TextOutListCount
* ModeNumber
;
4413 CurrentMode
= (UINTN
)(*TextOutModeMap
);
4414 *Columns
= Private
->TextOutQueryData
[CurrentMode
].Columns
;
4415 *Rows
= Private
->TextOutQueryData
[CurrentMode
].Rows
;
4417 *Columns
= Private
->TextOutQueryData
[ModeNumber
].Columns
;
4418 *Rows
= Private
->TextOutQueryData
[ModeNumber
].Rows
;
4421 if (*Columns
<= 0 && *Rows
<= 0) {
4422 return EFI_UNSUPPORTED
;
4431 Sets the output device(s) to a specified mode.
4433 @param This Protocol instance pointer.
4434 @param ModeNumber The mode number to set.
4436 @retval EFI_SUCCESS The requested text mode was set.
4437 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4439 @retval EFI_UNSUPPORTED The mode number was not valid.
4444 ConSplitterTextOutSetMode (
4445 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
,
4450 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4452 INT32
*TextOutModeMap
;
4453 EFI_STATUS ReturnStatus
;
4455 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4458 // Check whether param ModeNumber is valid.
4459 // ModeNumber should be within range 0 ~ MaxMode - 1.
4461 if ( (ModeNumber
> (UINTN
)(((UINT32
)-1)>>1)) ) {
4462 return EFI_UNSUPPORTED
;
4465 if ((INT32
) ModeNumber
>= This
->Mode
->MaxMode
) {
4466 return EFI_UNSUPPORTED
;
4469 // If the mode is being set to the curent mode, then just clear the screen and return.
4471 if (Private
->TextOutMode
.Mode
== (INT32
) ModeNumber
) {
4472 return ConSplitterTextOutClearScreen (This
);
4475 // return the worst status met
4477 TextOutModeMap
= Private
->TextOutModeMap
+ Private
->TextOutListCount
* ModeNumber
;
4478 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
4479 Status
= Private
->TextOutList
[Index
].TextOut
->SetMode (
4480 Private
->TextOutList
[Index
].TextOut
,
4481 TextOutModeMap
[Index
]
4483 if (EFI_ERROR (Status
)) {
4484 ReturnStatus
= Status
;
4489 // Set mode parameter to specified mode number
4491 TextOutSetMode (Private
, ModeNumber
);
4493 return ReturnStatus
;
4498 Sets the background and foreground colors for the OutputString () and
4499 ClearScreen () functions.
4501 @param This Protocol instance pointer.
4502 @param Attribute The attribute to set. Bits 0..3 are the
4503 foreground color, and bits 4..6 are the
4504 background color. All other bits are undefined
4505 and must be zero. The valid Attributes are
4506 defined in this file.
4508 @retval EFI_SUCCESS The attribute was set.
4509 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4511 @retval EFI_UNSUPPORTED The attribute requested is not defined.
4516 ConSplitterTextOutSetAttribute (
4517 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
,
4522 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4524 EFI_STATUS ReturnStatus
;
4526 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4529 // Check whether param Attribute is valid.
4531 if ( (Attribute
> (UINTN
)(((UINT32
)-1)>>1)) ) {
4532 return EFI_UNSUPPORTED
;
4536 // return the worst status met
4538 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
4539 Status
= Private
->TextOutList
[Index
].TextOut
->SetAttribute (
4540 Private
->TextOutList
[Index
].TextOut
,
4543 if (EFI_ERROR (Status
)) {
4544 ReturnStatus
= Status
;
4548 Private
->TextOutMode
.Attribute
= (INT32
) Attribute
;
4550 return ReturnStatus
;
4555 Clears the output device(s) display to the currently selected background
4558 @param This Protocol instance pointer.
4560 @retval EFI_SUCCESS The operation completed successfully.
4561 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4563 @retval EFI_UNSUPPORTED The output device is not in a valid text mode.
4568 ConSplitterTextOutClearScreen (
4569 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
4573 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4575 EFI_STATUS ReturnStatus
;
4577 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4580 // return the worst status met
4582 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
4583 Status
= Private
->TextOutList
[Index
].TextOut
->ClearScreen (Private
->TextOutList
[Index
].TextOut
);
4584 if (EFI_ERROR (Status
)) {
4585 ReturnStatus
= Status
;
4590 // No need to do extra check here as whether (Column, Row) is valid has
4591 // been checked in ConSplitterTextOutSetCursorPosition. And (0, 0) should
4592 // always be supported.
4594 Private
->TextOutMode
.CursorColumn
= 0;
4595 Private
->TextOutMode
.CursorRow
= 0;
4596 Private
->TextOutMode
.CursorVisible
= TRUE
;
4598 return ReturnStatus
;
4603 Sets the current coordinates of the cursor position
4605 @param This Protocol instance pointer.
4606 @param Column The column position to set the cursor to. Must be
4607 greater than or equal to zero and less than the
4608 number of columns by QueryMode ().
4609 @param Row The row position to set the cursor to. Must be
4610 greater than or equal to zero and less than the
4611 number of rows by QueryMode ().
4613 @retval EFI_SUCCESS The operation completed successfully.
4614 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4616 @retval EFI_UNSUPPORTED The output device is not in a valid text mode,
4617 or the cursor position is invalid for the
4623 ConSplitterTextOutSetCursorPosition (
4624 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
,
4630 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4632 EFI_STATUS ReturnStatus
;
4635 INT32
*TextOutModeMap
;
4639 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4640 TextOutModeMap
= NULL
;
4641 ModeNumber
= Private
->TextOutMode
.Mode
;
4644 // Get current MaxColumn and MaxRow from intersection map
4646 if (Private
->TextOutModeMap
!= NULL
) {
4647 TextOutModeMap
= Private
->TextOutModeMap
+ Private
->TextOutListCount
* ModeNumber
;
4648 CurrentMode
= *TextOutModeMap
;
4650 CurrentMode
= ModeNumber
;
4653 MaxColumn
= Private
->TextOutQueryData
[CurrentMode
].Columns
;
4654 MaxRow
= Private
->TextOutQueryData
[CurrentMode
].Rows
;
4656 if (Column
>= MaxColumn
|| Row
>= MaxRow
) {
4657 return EFI_UNSUPPORTED
;
4660 // return the worst status met
4662 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
4663 Status
= Private
->TextOutList
[Index
].TextOut
->SetCursorPosition (
4664 Private
->TextOutList
[Index
].TextOut
,
4668 if (EFI_ERROR (Status
)) {
4669 ReturnStatus
= Status
;
4674 // No need to do extra check here as whether (Column, Row) is valid has
4675 // been checked in ConSplitterTextOutSetCursorPosition. And (0, 0) should
4676 // always be supported.
4678 Private
->TextOutMode
.CursorColumn
= (INT32
) Column
;
4679 Private
->TextOutMode
.CursorRow
= (INT32
) Row
;
4681 return ReturnStatus
;
4686 Makes the cursor visible or invisible
4688 @param This Protocol instance pointer.
4689 @param Visible If TRUE, the cursor is set to be visible. If
4690 FALSE, the cursor is set to be invisible.
4692 @retval EFI_SUCCESS The operation completed successfully.
4693 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4694 the request, or the device does not support
4695 changing the cursor mode.
4696 @retval EFI_UNSUPPORTED The output device is not in a valid text mode.
4701 ConSplitterTextOutEnableCursor (
4702 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
*This
,
4707 TEXT_OUT_SPLITTER_PRIVATE_DATA
*Private
;
4709 EFI_STATUS ReturnStatus
;
4711 Private
= TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This
);
4714 // return the worst status met
4716 for (Index
= 0, ReturnStatus
= EFI_SUCCESS
; Index
< Private
->CurrentNumberOfConsoles
; Index
++) {
4717 Status
= Private
->TextOutList
[Index
].TextOut
->EnableCursor (
4718 Private
->TextOutList
[Index
].TextOut
,
4721 if (EFI_ERROR (Status
)) {
4722 ReturnStatus
= Status
;
4726 Private
->TextOutMode
.CursorVisible
= Visible
;
4728 return ReturnStatus
;
4733 An empty function to pass error checking of CreateEventEx ().
4735 @param Event Event whose notification function is being invoked.
4736 @param Context Pointer to the notification function's context,
4737 which is implementation-dependent.
4742 ConSplitterEmptyCallbackFunction (