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1 /** @file
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.
5
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.
13
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
17 device situation.
18
19 Copyright (c) 2006 - 2010, 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
24
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.
27
28 **/
29
30 #include "ConSplitter.h"
31
32 //
33 // Text In Splitter Private Data template
34 //
35 GLOBAL_REMOVE_IF_UNREFERENCED TEXT_IN_SPLITTER_PRIVATE_DATA mConIn = {
36 TEXT_IN_SPLITTER_PRIVATE_DATA_SIGNATURE,
37 (EFI_HANDLE) NULL,
38
39 {
40 ConSplitterTextInReset,
41 ConSplitterTextInReadKeyStroke,
42 (EFI_EVENT) NULL
43 },
44 0,
45 (EFI_SIMPLE_TEXT_INPUT_PROTOCOL **) NULL,
46 0,
47
48 {
49 ConSplitterTextInResetEx,
50 ConSplitterTextInReadKeyStrokeEx,
51 (EFI_EVENT) NULL,
52 ConSplitterTextInSetState,
53 ConSplitterTextInRegisterKeyNotify,
54 ConSplitterTextInUnregisterKeyNotify
55 },
56 0,
57 (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL **) NULL,
58 0,
59 {
60 (LIST_ENTRY *) NULL,
61 (LIST_ENTRY *) NULL
62 },
63
64 {
65 ConSplitterSimplePointerReset,
66 ConSplitterSimplePointerGetState,
67 (EFI_EVENT) NULL,
68 (EFI_SIMPLE_POINTER_MODE *) NULL
69 },
70 {
71 0x10000,
72 0x10000,
73 0x10000,
74 TRUE,
75 TRUE
76 },
77 0,
78 (EFI_SIMPLE_POINTER_PROTOCOL **) NULL,
79 0,
80
81 {
82 ConSplitterAbsolutePointerReset,
83 ConSplitterAbsolutePointerGetState,
84 (EFI_EVENT) NULL,
85 (EFI_ABSOLUTE_POINTER_MODE *) NULL
86 },
87 {
88 0, // AbsoluteMinX
89 0, // AbsoluteMinY
90 0, // AbsoluteMinZ
91 0x10000, // AbsoluteMaxX
92 0x10000, // AbsoluteMaxY
93 0x10000, // AbsoluteMaxZ
94 0 // Attributes
95 },
96 0,
97 (EFI_ABSOLUTE_POINTER_PROTOCOL **) NULL,
98 0,
99 FALSE,
100
101 FALSE,
102 FALSE
103 };
104
105
106 //
107 // Uga Draw Protocol Private Data template
108 //
109 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UGA_DRAW_PROTOCOL mUgaDrawProtocolTemplate = {
110 ConSplitterUgaDrawGetMode,
111 ConSplitterUgaDrawSetMode,
112 ConSplitterUgaDrawBlt
113 };
114
115 //
116 // Graphics Output Protocol Private Data template
117 //
118 GLOBAL_REMOVE_IF_UNREFERENCED EFI_GRAPHICS_OUTPUT_PROTOCOL mGraphicsOutputProtocolTemplate = {
119 ConSplitterGraphicsOutputQueryMode,
120 ConSplitterGraphicsOutputSetMode,
121 ConSplitterGraphicsOutputBlt,
122 NULL
123 };
124
125
126 //
127 // Text Out Splitter Private Data template
128 //
129 GLOBAL_REMOVE_IF_UNREFERENCED TEXT_OUT_SPLITTER_PRIVATE_DATA mConOut = {
130 TEXT_OUT_SPLITTER_PRIVATE_DATA_SIGNATURE,
131 (EFI_HANDLE) NULL,
132 {
133 ConSplitterTextOutReset,
134 ConSplitterTextOutOutputString,
135 ConSplitterTextOutTestString,
136 ConSplitterTextOutQueryMode,
137 ConSplitterTextOutSetMode,
138 ConSplitterTextOutSetAttribute,
139 ConSplitterTextOutClearScreen,
140 ConSplitterTextOutSetCursorPosition,
141 ConSplitterTextOutEnableCursor,
142 (EFI_SIMPLE_TEXT_OUTPUT_MODE *) NULL
143 },
144 {
145 1,
146 0,
147 0,
148 0,
149 0,
150 FALSE,
151 },
152
153 {
154 NULL,
155 NULL,
156 NULL
157 },
158 0,
159 0,
160 0,
161 0,
162
163 {
164 NULL,
165 NULL,
166 NULL,
167 NULL
168 },
169 (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *) NULL,
170 0,
171 0,
172 TRUE,
173
174 0,
175 (TEXT_OUT_AND_GOP_DATA *) NULL,
176 0,
177 (TEXT_OUT_SPLITTER_QUERY_DATA *) NULL,
178 0,
179 (INT32 *) NULL
180 };
181
182 //
183 // Standard Error Text Out Splitter Data Template
184 //
185 GLOBAL_REMOVE_IF_UNREFERENCED TEXT_OUT_SPLITTER_PRIVATE_DATA mStdErr = {
186 TEXT_OUT_SPLITTER_PRIVATE_DATA_SIGNATURE,
187 (EFI_HANDLE) NULL,
188 {
189 ConSplitterTextOutReset,
190 ConSplitterTextOutOutputString,
191 ConSplitterTextOutTestString,
192 ConSplitterTextOutQueryMode,
193 ConSplitterTextOutSetMode,
194 ConSplitterTextOutSetAttribute,
195 ConSplitterTextOutClearScreen,
196 ConSplitterTextOutSetCursorPosition,
197 ConSplitterTextOutEnableCursor,
198 (EFI_SIMPLE_TEXT_OUTPUT_MODE *) NULL
199 },
200 {
201 1,
202 0,
203 0,
204 0,
205 0,
206 FALSE,
207 },
208
209 {
210 NULL,
211 NULL,
212 NULL
213 },
214 0,
215 0,
216 0,
217 0,
218
219 {
220 NULL,
221 NULL,
222 NULL,
223 NULL
224 },
225 (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *) NULL,
226 0,
227 0,
228 TRUE,
229
230 0,
231 (TEXT_OUT_AND_GOP_DATA *) NULL,
232 0,
233 (TEXT_OUT_SPLITTER_QUERY_DATA *) NULL,
234 0,
235 (INT32 *) NULL
236 };
237
238 //
239 // Driver binding instance for Console Input Device
240 //
241 EFI_DRIVER_BINDING_PROTOCOL gConSplitterConInDriverBinding = {
242 ConSplitterConInDriverBindingSupported,
243 ConSplitterConInDriverBindingStart,
244 ConSplitterConInDriverBindingStop,
245 0xa,
246 NULL,
247 NULL
248 };
249
250 //
251 // Driver binding instance for Console Out device
252 //
253 EFI_DRIVER_BINDING_PROTOCOL gConSplitterConOutDriverBinding = {
254 ConSplitterConOutDriverBindingSupported,
255 ConSplitterConOutDriverBindingStart,
256 ConSplitterConOutDriverBindingStop,
257 0xa,
258 NULL,
259 NULL
260 };
261
262 //
263 // Driver binding instance for Standard Error device
264 //
265 EFI_DRIVER_BINDING_PROTOCOL gConSplitterStdErrDriverBinding = {
266 ConSplitterStdErrDriverBindingSupported,
267 ConSplitterStdErrDriverBindingStart,
268 ConSplitterStdErrDriverBindingStop,
269 0xa,
270 NULL,
271 NULL
272 };
273
274 //
275 // Driver binding instance for Simple Pointer protocol
276 //
277 EFI_DRIVER_BINDING_PROTOCOL gConSplitterSimplePointerDriverBinding = {
278 ConSplitterSimplePointerDriverBindingSupported,
279 ConSplitterSimplePointerDriverBindingStart,
280 ConSplitterSimplePointerDriverBindingStop,
281 0xa,
282 NULL,
283 NULL
284 };
285
286 //
287 // Driver binding instance for Absolute Pointer protocol
288 //
289 EFI_DRIVER_BINDING_PROTOCOL gConSplitterAbsolutePointerDriverBinding = {
290 ConSplitterAbsolutePointerDriverBindingSupported,
291 ConSplitterAbsolutePointerDriverBindingStart,
292 ConSplitterAbsolutePointerDriverBindingStop,
293 0xa,
294 NULL,
295 NULL
296 };
297
298 /**
299 The Entry Point for module ConSplitter. The user code starts with this function.
300
301 Installs driver module protocols and. Creates virtual device handles for ConIn,
302 ConOut, and StdErr. Installs Simple Text In protocol, Simple Text In Ex protocol,
303 Simple Pointer protocol, Absolute Pointer protocol on those virtual handlers.
304 Installs Graphics Output protocol and/or UGA Draw protocol if needed.
305
306 @param[in] ImageHandle The firmware allocated handle for the EFI image.
307 @param[in] SystemTable A pointer to the EFI System Table.
308
309 @retval EFI_SUCCESS The entry point is executed successfully.
310 @retval other Some error occurs when executing this entry point.
311
312 **/
313 EFI_STATUS
314 EFIAPI
315 ConSplitterDriverEntry(
316 IN EFI_HANDLE ImageHandle,
317 IN EFI_SYSTEM_TABLE *SystemTable
318 )
319 {
320 EFI_STATUS Status;
321
322 //
323 // Install driver model protocol(s).
324 //
325 Status = EfiLibInstallDriverBindingComponentName2 (
326 ImageHandle,
327 SystemTable,
328 &gConSplitterConInDriverBinding,
329 ImageHandle,
330 &gConSplitterConInComponentName,
331 &gConSplitterConInComponentName2
332 );
333 ASSERT_EFI_ERROR (Status);
334
335 Status = EfiLibInstallDriverBindingComponentName2 (
336 ImageHandle,
337 SystemTable,
338 &gConSplitterSimplePointerDriverBinding,
339 NULL,
340 &gConSplitterSimplePointerComponentName,
341 &gConSplitterSimplePointerComponentName2
342 );
343 ASSERT_EFI_ERROR (Status);
344
345 Status = EfiLibInstallDriverBindingComponentName2 (
346 ImageHandle,
347 SystemTable,
348 &gConSplitterAbsolutePointerDriverBinding,
349 NULL,
350 &gConSplitterAbsolutePointerComponentName,
351 &gConSplitterAbsolutePointerComponentName2
352 );
353 ASSERT_EFI_ERROR (Status);
354
355 Status = EfiLibInstallDriverBindingComponentName2 (
356 ImageHandle,
357 SystemTable,
358 &gConSplitterConOutDriverBinding,
359 NULL,
360 &gConSplitterConOutComponentName,
361 &gConSplitterConOutComponentName2
362 );
363 ASSERT_EFI_ERROR (Status);
364
365 Status = EfiLibInstallDriverBindingComponentName2 (
366 ImageHandle,
367 SystemTable,
368 &gConSplitterStdErrDriverBinding,
369 NULL,
370 &gConSplitterStdErrComponentName,
371 &gConSplitterStdErrComponentName2
372 );
373 ASSERT_EFI_ERROR (Status);
374
375 //
376 // Either Graphics Output protocol or UGA Draw protocol must be supported.
377 //
378 ASSERT (FeaturePcdGet (PcdConOutGopSupport) ||
379 FeaturePcdGet (PcdConOutUgaSupport));
380
381 //
382 // The driver creates virtual handles for ConIn, ConOut.
383 // The virtual handles will always exist even if no console exist in the
384 // system. This is need to support hotplug devices like USB.
385 //
386 //
387 // Create virtual device handle for ConIn Splitter
388 //
389 Status = ConSplitterTextInConstructor (&mConIn);
390 if (!EFI_ERROR (Status)) {
391 Status = gBS->InstallMultipleProtocolInterfaces (
392 &mConIn.VirtualHandle,
393 &gEfiSimpleTextInProtocolGuid,
394 &mConIn.TextIn,
395 &gEfiSimpleTextInputExProtocolGuid,
396 &mConIn.TextInEx,
397 &gEfiSimplePointerProtocolGuid,
398 &mConIn.SimplePointer,
399 &gEfiAbsolutePointerProtocolGuid,
400 &mConIn.AbsolutePointer,
401 NULL
402 );
403 if (!EFI_ERROR (Status)) {
404 //
405 // Update the EFI System Table with new virtual console
406 // and update the pointer to Simple Text Input protocol.
407 //
408 gST->ConsoleInHandle = mConIn.VirtualHandle;
409 gST->ConIn = &mConIn.TextIn;
410 }
411 }
412 //
413 // Create virtual device handle for ConOut Splitter
414 //
415 Status = ConSplitterTextOutConstructor (&mConOut);
416 if (!EFI_ERROR (Status)) {
417 if (!FeaturePcdGet (PcdConOutGopSupport)) {
418 //
419 // If Graphics Outpurt protocol not supported, UGA Draw protocol is installed
420 // on the virtual handle.
421 //
422 Status = gBS->InstallMultipleProtocolInterfaces (
423 &mConOut.VirtualHandle,
424 &gEfiSimpleTextOutProtocolGuid,
425 &mConOut.TextOut,
426 &gEfiUgaDrawProtocolGuid,
427 &mConOut.UgaDraw,
428 NULL
429 );
430 } else if (!FeaturePcdGet (PcdConOutUgaSupport)) {
431 //
432 // If UGA Draw protocol not supported, Graphics Output Protocol is installed
433 // on virtual handle.
434 //
435 Status = gBS->InstallMultipleProtocolInterfaces (
436 &mConOut.VirtualHandle,
437 &gEfiSimpleTextOutProtocolGuid,
438 &mConOut.TextOut,
439 &gEfiGraphicsOutputProtocolGuid,
440 &mConOut.GraphicsOutput,
441 NULL
442 );
443 } else {
444 //
445 // Boot Graphics Output protocol and UGA Draw protocol are supported,
446 // both they will be installed on virtual handle.
447 //
448 Status = gBS->InstallMultipleProtocolInterfaces (
449 &mConOut.VirtualHandle,
450 &gEfiSimpleTextOutProtocolGuid,
451 &mConOut.TextOut,
452 &gEfiGraphicsOutputProtocolGuid,
453 &mConOut.GraphicsOutput,
454 &gEfiUgaDrawProtocolGuid,
455 &mConOut.UgaDraw,
456 NULL
457 );
458 }
459
460 if (!EFI_ERROR (Status)) {
461 //
462 // Update the EFI System Table with new virtual console
463 // and Update the pointer to Text Output protocol.
464 //
465 gST->ConsoleOutHandle = mConOut.VirtualHandle;
466 gST->ConOut = &mConOut.TextOut;
467 }
468
469 }
470 //
471 // Update the CRC32 in the EFI System Table header
472 //
473 gST->Hdr.CRC32 = 0;
474 gBS->CalculateCrc32 (
475 (UINT8 *) &gST->Hdr,
476 gST->Hdr.HeaderSize,
477 &gST->Hdr.CRC32
478 );
479
480 return EFI_SUCCESS;
481
482 }
483
484 /**
485 Construct console input devices' private data.
486
487 @param ConInPrivate A pointer to the TEXT_IN_SPLITTER_PRIVATE_DATA
488 structure.
489
490 @retval EFI_OUT_OF_RESOURCES Out of resources.
491 @retval EFI_SUCCESS Text Input Devcie's private data has been constructed.
492 @retval other Failed to construct private data.
493
494 **/
495 EFI_STATUS
496 ConSplitterTextInConstructor (
497 TEXT_IN_SPLITTER_PRIVATE_DATA *ConInPrivate
498 )
499 {
500 EFI_STATUS Status;
501
502 //
503 // Allocate buffer for Simple Text Input device
504 //
505 Status = ConSplitterGrowBuffer (
506 sizeof (EFI_SIMPLE_TEXT_INPUT_PROTOCOL *),
507 &ConInPrivate->TextInListCount,
508 (VOID **) &ConInPrivate->TextInList
509 );
510 if (EFI_ERROR (Status)) {
511 return EFI_OUT_OF_RESOURCES;
512 }
513
514 //
515 // Create Event to wait for a key
516 //
517 Status = gBS->CreateEvent (
518 EVT_NOTIFY_WAIT,
519 TPL_NOTIFY,
520 ConSplitterTextInWaitForKey,
521 ConInPrivate,
522 &ConInPrivate->TextIn.WaitForKey
523 );
524 ASSERT_EFI_ERROR (Status);
525
526 //
527 // Allocate buffer for Simple Text Input Ex device
528 //
529 Status = ConSplitterGrowBuffer (
530 sizeof (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *),
531 &ConInPrivate->TextInExListCount,
532 (VOID **) &ConInPrivate->TextInExList
533 );
534 if (EFI_ERROR (Status)) {
535 return EFI_OUT_OF_RESOURCES;
536 }
537 //
538 // Create Event to wait for a key Ex
539 //
540 Status = gBS->CreateEvent (
541 EVT_NOTIFY_WAIT,
542 TPL_NOTIFY,
543 ConSplitterTextInWaitForKey,
544 ConInPrivate,
545 &ConInPrivate->TextInEx.WaitForKeyEx
546 );
547 ASSERT_EFI_ERROR (Status);
548
549 InitializeListHead (&ConInPrivate->NotifyList);
550
551 ConInPrivate->AbsolutePointer.Mode = &ConInPrivate->AbsolutePointerMode;
552 //
553 // Allocate buffer for Absolute Pointer device
554 //
555 Status = ConSplitterGrowBuffer (
556 sizeof (EFI_ABSOLUTE_POINTER_PROTOCOL *),
557 &ConInPrivate->AbsolutePointerListCount,
558 (VOID **) &ConInPrivate->AbsolutePointerList
559 );
560 if (EFI_ERROR (Status)) {
561 return EFI_OUT_OF_RESOURCES;
562 }
563 //
564 // Create Event to wait for device input for Absolute pointer device
565 //
566 Status = gBS->CreateEvent (
567 EVT_NOTIFY_WAIT,
568 TPL_NOTIFY,
569 ConSplitterAbsolutePointerWaitForInput,
570 ConInPrivate,
571 &ConInPrivate->AbsolutePointer.WaitForInput
572 );
573 ASSERT_EFI_ERROR (Status);
574
575 ConInPrivate->SimplePointer.Mode = &ConInPrivate->SimplePointerMode;
576 //
577 // Allocate buffer for Simple Pointer device
578 //
579 Status = ConSplitterGrowBuffer (
580 sizeof (EFI_SIMPLE_POINTER_PROTOCOL *),
581 &ConInPrivate->PointerListCount,
582 (VOID **) &ConInPrivate->PointerList
583 );
584 if (EFI_ERROR (Status)) {
585 return EFI_OUT_OF_RESOURCES;
586 }
587 //
588 // Create Event to wait for device input for Simple pointer device
589 //
590 Status = gBS->CreateEvent (
591 EVT_NOTIFY_WAIT,
592 TPL_NOTIFY,
593 ConSplitterSimplePointerWaitForInput,
594 ConInPrivate,
595 &ConInPrivate->SimplePointer.WaitForInput
596 );
597
598 return Status;
599 }
600
601 /**
602 Construct console output devices' private data.
603
604 @param ConOutPrivate A pointer to the TEXT_OUT_SPLITTER_PRIVATE_DATA
605 structure.
606
607 @retval EFI_OUT_OF_RESOURCES Out of resources.
608 @retval EFI_SUCCESS Text Input Devcie's private data has been constructed.
609
610 **/
611 EFI_STATUS
612 ConSplitterTextOutConstructor (
613 TEXT_OUT_SPLITTER_PRIVATE_DATA *ConOutPrivate
614 )
615 {
616 EFI_STATUS Status;
617 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
618
619 //
620 // Copy protocols template
621 //
622 if (FeaturePcdGet (PcdConOutUgaSupport)) {
623 CopyMem (&ConOutPrivate->UgaDraw, &mUgaDrawProtocolTemplate, sizeof (EFI_UGA_DRAW_PROTOCOL));
624 }
625 if (FeaturePcdGet (PcdConOutGopSupport)) {
626 CopyMem (&ConOutPrivate->GraphicsOutput, &mGraphicsOutputProtocolTemplate, sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL));
627 }
628
629 //
630 // Initilize console output splitter's private data.
631 //
632 ConOutPrivate->TextOut.Mode = &ConOutPrivate->TextOutMode;
633
634 //
635 // When new console device is added, the new mode will be set later,
636 // so put current mode back to init state.
637 //
638 ConOutPrivate->TextOutMode.Mode = 0xFF;
639 //
640 // Allocate buffer for Console Out device
641 //
642 Status = ConSplitterGrowBuffer (
643 sizeof (TEXT_OUT_AND_GOP_DATA),
644 &ConOutPrivate->TextOutListCount,
645 (VOID **) &ConOutPrivate->TextOutList
646 );
647 if (EFI_ERROR (Status)) {
648 return EFI_OUT_OF_RESOURCES;
649 }
650 //
651 // Allocate buffer for Text Out query data
652 //
653 Status = ConSplitterGrowBuffer (
654 sizeof (TEXT_OUT_SPLITTER_QUERY_DATA),
655 &ConOutPrivate->TextOutQueryDataCount,
656 (VOID **) &ConOutPrivate->TextOutQueryData
657 );
658 if (EFI_ERROR (Status)) {
659 return EFI_OUT_OF_RESOURCES;
660 }
661
662 //
663 // Setup the default console to 80 x 25 and mode to 0
664 //
665 ConOutPrivate->TextOutQueryData[0].Columns = 80;
666 ConOutPrivate->TextOutQueryData[0].Rows = 25;
667 TextOutSetMode (ConOutPrivate, 0);
668
669
670 if (FeaturePcdGet (PcdConOutUgaSupport)) {
671 //
672 // Setup the UgaDraw to 800 x 600 x 32 bits per pixel, 60Hz.
673 //
674 ConSplitterUgaDrawSetMode (&ConOutPrivate->UgaDraw, 800, 600, 32, 60);
675 }
676 if (FeaturePcdGet (PcdConOutGopSupport)) {
677 //
678 // Setup resource for mode information in Graphics Output Protocol interface
679 //
680 if ((ConOutPrivate->GraphicsOutput.Mode = AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE))) == NULL) {
681 return EFI_OUT_OF_RESOURCES;
682 }
683 if ((ConOutPrivate->GraphicsOutput.Mode->Info = AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION))) == NULL) {
684 return EFI_OUT_OF_RESOURCES;
685 }
686 //
687 // Setup the DevNullGraphicsOutput to 800 x 600 x 32 bits per pixel
688 // DevNull will be updated to user-defined mode after driver has started.
689 //
690 if ((ConOutPrivate->GraphicsOutputModeBuffer = AllocateZeroPool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION))) == NULL) {
691 return EFI_OUT_OF_RESOURCES;
692 }
693 Info = &ConOutPrivate->GraphicsOutputModeBuffer[0];
694 Info->Version = 0;
695 Info->HorizontalResolution = 800;
696 Info->VerticalResolution = 600;
697 Info->PixelFormat = PixelBltOnly;
698 Info->PixelsPerScanLine = 800;
699 CopyMem (ConOutPrivate->GraphicsOutput.Mode->Info, Info, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
700 ConOutPrivate->GraphicsOutput.Mode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
701
702 //
703 // Initialize the following items, theset items remain unchanged in GraphicsOutput->SetMode()
704 // GraphicsOutputMode->FrameBufferBase, GraphicsOutputMode->FrameBufferSize
705 //
706 ConOutPrivate->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) NULL;
707 ConOutPrivate->GraphicsOutput.Mode->FrameBufferSize = 0;
708
709 ConOutPrivate->GraphicsOutput.Mode->MaxMode = 1;
710 //
711 // Initial current mode to unknown state, and then set to mode 0
712 //
713 ConOutPrivate->GraphicsOutput.Mode->Mode = 0xffff;
714 ConOutPrivate->GraphicsOutput.SetMode (&ConOutPrivate->GraphicsOutput, 0);
715 }
716
717 return EFI_SUCCESS;
718 }
719
720
721 /**
722 Test to see if the specified protocol could be supported on the specified device.
723
724 @param This Driver Binding protocol pointer.
725 @param ControllerHandle Handle of device to test.
726 @param Guid The specified protocol.
727
728 @retval EFI_SUCCESS The specified protocol is supported on this device.
729 @retval EFI_UNSUPPORTED The specified protocol attempts to be installed on virtul handle.
730 @retval other Failed to open specified protocol on this device.
731
732 **/
733 EFI_STATUS
734 ConSplitterSupported (
735 IN EFI_DRIVER_BINDING_PROTOCOL *This,
736 IN EFI_HANDLE ControllerHandle,
737 IN EFI_GUID *Guid
738 )
739 {
740 EFI_STATUS Status;
741 VOID *Instance;
742
743 //
744 // Make sure the Console Splitter does not attempt to attach to itself
745 //
746 if (ControllerHandle == mConIn.VirtualHandle ||
747 ControllerHandle == mConOut.VirtualHandle ||
748 ControllerHandle == mStdErr.VirtualHandle
749 ) {
750 return EFI_UNSUPPORTED;
751 }
752
753 //
754 // Check to see whether the specific protocol could be opened BY_DRIVER
755 //
756 Status = gBS->OpenProtocol (
757 ControllerHandle,
758 Guid,
759 &Instance,
760 This->DriverBindingHandle,
761 ControllerHandle,
762 EFI_OPEN_PROTOCOL_BY_DRIVER
763 );
764
765 if (EFI_ERROR (Status)) {
766 return Status;
767 }
768
769 gBS->CloseProtocol (
770 ControllerHandle,
771 Guid,
772 This->DriverBindingHandle,
773 ControllerHandle
774 );
775
776 return EFI_SUCCESS;
777 }
778
779 /**
780 Test to see if Console In Device could be supported on the Controller.
781
782 @param This Driver Binding protocol instance pointer.
783 @param ControllerHandle Handle of device to test.
784 @param RemainingDevicePath Optional parameter use to pick a specific child
785 device to start.
786
787 @retval EFI_SUCCESS This driver supports this device.
788 @retval other This driver does not support this device.
789
790 **/
791 EFI_STATUS
792 EFIAPI
793 ConSplitterConInDriverBindingSupported (
794 IN EFI_DRIVER_BINDING_PROTOCOL *This,
795 IN EFI_HANDLE ControllerHandle,
796 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
797 )
798 {
799 return ConSplitterSupported (
800 This,
801 ControllerHandle,
802 &gEfiConsoleInDeviceGuid
803 );
804 }
805
806 /**
807 Test to see if Simple Pointer protocol could be supported on the Controller.
808
809 @param This Driver Binding protocol instance pointer.
810 @param ControllerHandle Handle of device to test.
811 @param RemainingDevicePath Optional parameter use to pick a specific child
812 device to start.
813
814 @retval EFI_SUCCESS This driver supports this device.
815 @retval other This driver does not support this device.
816
817 **/
818 EFI_STATUS
819 EFIAPI
820 ConSplitterSimplePointerDriverBindingSupported (
821 IN EFI_DRIVER_BINDING_PROTOCOL *This,
822 IN EFI_HANDLE ControllerHandle,
823 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
824 )
825 {
826 return ConSplitterSupported (
827 This,
828 ControllerHandle,
829 &gEfiSimplePointerProtocolGuid
830 );
831 }
832
833 /**
834 Test to see if Absolute Pointer protocol could be supported on the Controller.
835
836 @param This Driver Binding protocol instance pointer.
837 @param ControllerHandle Handle of device to test.
838 @param RemainingDevicePath Optional parameter use to pick a specific child
839 device to start.
840
841 @retval EFI_SUCCESS This driver supports this device.
842 @retval other This driver does not support this device.
843
844 **/
845 EFI_STATUS
846 EFIAPI
847 ConSplitterAbsolutePointerDriverBindingSupported (
848 IN EFI_DRIVER_BINDING_PROTOCOL *This,
849 IN EFI_HANDLE ControllerHandle,
850 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
851 )
852 {
853 return ConSplitterSupported (
854 This,
855 ControllerHandle,
856 &gEfiAbsolutePointerProtocolGuid
857 );
858 }
859
860
861 /**
862 Test to see if Console Out Device could be supported on the Controller.
863
864 @param This Driver Binding protocol instance pointer.
865 @param ControllerHandle Handle of device to test.
866 @param RemainingDevicePath Optional parameter use to pick a specific child
867 device to start.
868
869 @retval EFI_SUCCESS This driver supports this device.
870 @retval other This driver does not support this device.
871
872 **/
873 EFI_STATUS
874 EFIAPI
875 ConSplitterConOutDriverBindingSupported (
876 IN EFI_DRIVER_BINDING_PROTOCOL *This,
877 IN EFI_HANDLE ControllerHandle,
878 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
879 )
880 {
881 return ConSplitterSupported (
882 This,
883 ControllerHandle,
884 &gEfiConsoleOutDeviceGuid
885 );
886 }
887
888 /**
889 Test to see if Standard Error Device could be supported on the Controller.
890
891 @param This Driver Binding protocol instance pointer.
892 @param ControllerHandle Handle of device to test.
893 @param RemainingDevicePath Optional parameter use to pick a specific child
894 device to start.
895
896 @retval EFI_SUCCESS This driver supports this device.
897 @retval other This driver does not support this device.
898
899 **/
900 EFI_STATUS
901 EFIAPI
902 ConSplitterStdErrDriverBindingSupported (
903 IN EFI_DRIVER_BINDING_PROTOCOL *This,
904 IN EFI_HANDLE ControllerHandle,
905 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
906 )
907 {
908 return ConSplitterSupported (
909 This,
910 ControllerHandle,
911 &gEfiStandardErrorDeviceGuid
912 );
913 }
914
915
916 /**
917 Start ConSplitter on devcie handle by opening Console Device Guid on device handle
918 and the console virtual handle. And Get the console interface on controller handle.
919
920 @param This Driver Binding protocol instance pointer.
921 @param ControllerHandle Handle of device.
922 @param ConSplitterVirtualHandle Console virtual Handle.
923 @param DeviceGuid The specified Console Device, such as ConInDev,
924 ConOutDev.
925 @param InterfaceGuid The specified protocol to be opened.
926 @param Interface Protocol interface returned.
927
928 @retval EFI_SUCCESS This driver supports this device.
929 @retval other Failed to open the specified Console Device Guid
930 or specified protocol.
931
932 **/
933 EFI_STATUS
934 ConSplitterStart (
935 IN EFI_DRIVER_BINDING_PROTOCOL *This,
936 IN EFI_HANDLE ControllerHandle,
937 IN EFI_HANDLE ConSplitterVirtualHandle,
938 IN EFI_GUID *DeviceGuid,
939 IN EFI_GUID *InterfaceGuid,
940 OUT VOID **Interface
941 )
942 {
943 EFI_STATUS Status;
944 VOID *Instance;
945
946 //
947 // Check to see whether the ControllerHandle has the DeviceGuid on it.
948 //
949 Status = gBS->OpenProtocol (
950 ControllerHandle,
951 DeviceGuid,
952 &Instance,
953 This->DriverBindingHandle,
954 ControllerHandle,
955 EFI_OPEN_PROTOCOL_BY_DRIVER
956 );
957 if (EFI_ERROR (Status)) {
958 return Status;
959 }
960
961 //
962 // Open the Parent Handle for the child.
963 //
964 Status = gBS->OpenProtocol (
965 ControllerHandle,
966 DeviceGuid,
967 &Instance,
968 This->DriverBindingHandle,
969 ConSplitterVirtualHandle,
970 EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
971 );
972 if (EFI_ERROR (Status)) {
973 goto Err;
974 }
975
976 //
977 // Open InterfaceGuid on the virtul handle.
978 //
979 Status = gBS->OpenProtocol (
980 ControllerHandle,
981 InterfaceGuid,
982 Interface,
983 This->DriverBindingHandle,
984 ConSplitterVirtualHandle,
985 EFI_OPEN_PROTOCOL_GET_PROTOCOL
986 );
987
988 if (!EFI_ERROR (Status)) {
989 return EFI_SUCCESS;
990 }
991
992 //
993 // close the DeviceGuid on ConSplitter VirtualHandle.
994 //
995 gBS->CloseProtocol (
996 ControllerHandle,
997 DeviceGuid,
998 This->DriverBindingHandle,
999 ConSplitterVirtualHandle
1000 );
1001
1002 Err:
1003 //
1004 // close the DeviceGuid on ControllerHandle.
1005 //
1006 gBS->CloseProtocol (
1007 ControllerHandle,
1008 DeviceGuid,
1009 This->DriverBindingHandle,
1010 ControllerHandle
1011 );
1012
1013 return Status;
1014 }
1015
1016
1017 /**
1018 Start Console In Consplitter on device handle.
1019
1020 @param This Driver Binding protocol instance pointer.
1021 @param ControllerHandle Handle of device to bind driver to.
1022 @param RemainingDevicePath Optional parameter use to pick a specific child
1023 device to start.
1024
1025 @retval EFI_SUCCESS Console In Consplitter is added to ControllerHandle.
1026 @retval other Console In Consplitter does not support this device.
1027
1028 **/
1029 EFI_STATUS
1030 EFIAPI
1031 ConSplitterConInDriverBindingStart (
1032 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1033 IN EFI_HANDLE ControllerHandle,
1034 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
1035 )
1036 {
1037 EFI_STATUS Status;
1038 EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;
1039 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInEx;
1040
1041 //
1042 // Start ConSplitter on ControllerHandle, and create the virtual
1043 // agrogated console device on first call Start for a SimpleTextIn handle.
1044 //
1045 Status = ConSplitterStart (
1046 This,
1047 ControllerHandle,
1048 mConIn.VirtualHandle,
1049 &gEfiConsoleInDeviceGuid,
1050 &gEfiSimpleTextInProtocolGuid,
1051 (VOID **) &TextIn
1052 );
1053 if (EFI_ERROR (Status)) {
1054 return Status;
1055 }
1056
1057 //
1058 // Add this device into Text In devices list.
1059 //
1060 Status = ConSplitterTextInAddDevice (&mConIn, TextIn);
1061 if (EFI_ERROR (Status)) {
1062 return Status;
1063 }
1064
1065 Status = gBS->OpenProtocol (
1066 ControllerHandle,
1067 &gEfiSimpleTextInputExProtocolGuid,
1068 (VOID **) &TextInEx,
1069 This->DriverBindingHandle,
1070 mConIn.VirtualHandle,
1071 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1072 );
1073 if (!EFI_ERROR (Status)) {
1074 //
1075 // If Simple Text Input Ex protocol exists,
1076 // add this device into Text In Ex devices list.
1077 //
1078 Status = ConSplitterTextInExAddDevice (&mConIn, TextInEx);
1079 }
1080
1081 return Status;
1082 }
1083
1084
1085 /**
1086 Start Simple Pointer Consplitter on device handle.
1087
1088 @param This Driver Binding protocol instance pointer.
1089 @param ControllerHandle Handle of device to bind driver to.
1090 @param RemainingDevicePath Optional parameter use to pick a specific child
1091 device to start.
1092
1093 @retval EFI_SUCCESS Simple Pointer Consplitter is added to ControllerHandle.
1094 @retval other Simple Pointer Consplitter does not support this device.
1095
1096 **/
1097 EFI_STATUS
1098 EFIAPI
1099 ConSplitterSimplePointerDriverBindingStart (
1100 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1101 IN EFI_HANDLE ControllerHandle,
1102 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
1103 )
1104 {
1105 EFI_STATUS Status;
1106 EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer;
1107
1108 //
1109 // Start ConSplitter on ControllerHandle, and create the virtual
1110 // agrogated console device on first call Start for a SimplePointer handle.
1111 //
1112 Status = ConSplitterStart (
1113 This,
1114 ControllerHandle,
1115 mConIn.VirtualHandle,
1116 &gEfiSimplePointerProtocolGuid,
1117 &gEfiSimplePointerProtocolGuid,
1118 (VOID **) &SimplePointer
1119 );
1120 if (EFI_ERROR (Status)) {
1121 return Status;
1122 }
1123
1124 //
1125 // Add this devcie into Simple Pointer devices list.
1126 //
1127 return ConSplitterSimplePointerAddDevice (&mConIn, SimplePointer);
1128 }
1129
1130
1131 /**
1132 Start Absolute Pointer Consplitter on device handle.
1133
1134 @param This Driver Binding protocol instance pointer.
1135 @param ControllerHandle Handle of device to bind driver to.
1136 @param RemainingDevicePath Optional parameter use to pick a specific child
1137 device to start.
1138
1139 @retval EFI_SUCCESS Absolute Pointer Consplitter is added to ControllerHandle.
1140 @retval other Absolute Pointer Consplitter does not support this device.
1141
1142 **/
1143 EFI_STATUS
1144 EFIAPI
1145 ConSplitterAbsolutePointerDriverBindingStart (
1146 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1147 IN EFI_HANDLE ControllerHandle,
1148 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
1149 )
1150 {
1151 EFI_STATUS Status;
1152 EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointer;
1153
1154 //
1155 // Start ConSplitter on ControllerHandle, and create the virtual
1156 // agrogated console device on first call Start for a AbsolutePointer handle.
1157 //
1158 Status = ConSplitterStart (
1159 This,
1160 ControllerHandle,
1161 mConIn.VirtualHandle,
1162 &gEfiAbsolutePointerProtocolGuid,
1163 &gEfiAbsolutePointerProtocolGuid,
1164 (VOID **) &AbsolutePointer
1165 );
1166
1167 if (EFI_ERROR (Status)) {
1168 return Status;
1169 }
1170
1171 //
1172 // Add this devcie into Absolute Pointer devices list.
1173 //
1174 return ConSplitterAbsolutePointerAddDevice (&mConIn, AbsolutePointer);
1175 }
1176
1177
1178 /**
1179 Start Console Out Consplitter on device handle.
1180
1181 @param This Driver Binding protocol instance pointer.
1182 @param ControllerHandle Handle of device to bind driver to.
1183 @param RemainingDevicePath Optional parameter use to pick a specific child
1184 device to start.
1185
1186 @retval EFI_SUCCESS Console Out Consplitter is added to ControllerHandle.
1187 @retval other Console Out Consplitter does not support this device.
1188
1189 **/
1190 EFI_STATUS
1191 EFIAPI
1192 ConSplitterConOutDriverBindingStart (
1193 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1194 IN EFI_HANDLE ControllerHandle,
1195 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
1196 )
1197 {
1198 EFI_STATUS Status;
1199 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
1200 EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
1201 EFI_UGA_DRAW_PROTOCOL *UgaDraw;
1202 UINTN SizeOfInfo;
1203 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
1204
1205 //
1206 // Start ConSplitter on ControllerHandle, and create the virtual
1207 // agrogated console device on first call Start for a ConsoleOut handle.
1208 //
1209 Status = ConSplitterStart (
1210 This,
1211 ControllerHandle,
1212 mConOut.VirtualHandle,
1213 &gEfiConsoleOutDeviceGuid,
1214 &gEfiSimpleTextOutProtocolGuid,
1215 (VOID **) &TextOut
1216 );
1217 if (EFI_ERROR (Status)) {
1218 return Status;
1219 }
1220
1221 GraphicsOutput = NULL;
1222 UgaDraw = NULL;
1223 //
1224 // Try to Open Graphics Output protocol
1225 //
1226 Status = gBS->OpenProtocol (
1227 ControllerHandle,
1228 &gEfiGraphicsOutputProtocolGuid,
1229 (VOID **) &GraphicsOutput,
1230 This->DriverBindingHandle,
1231 mConOut.VirtualHandle,
1232 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1233 );
1234
1235 if (EFI_ERROR (Status) && FeaturePcdGet (PcdUgaConsumeSupport)) {
1236 //
1237 // Open UGA DRAW protocol
1238 //
1239 gBS->OpenProtocol (
1240 ControllerHandle,
1241 &gEfiUgaDrawProtocolGuid,
1242 (VOID **) &UgaDraw,
1243 This->DriverBindingHandle,
1244 mConOut.VirtualHandle,
1245 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1246 );
1247 }
1248
1249 //
1250 // When new console device is added, the new mode will be set later,
1251 // so put current mode back to init state.
1252 //
1253 mConOut.TextOutMode.Mode = 0xFF;
1254
1255 //
1256 // If both ConOut and StdErr incorporate the same Text Out device,
1257 // their MaxMode and QueryData should be the intersection of both.
1258 //
1259 Status = ConSplitterTextOutAddDevice (&mConOut, TextOut, GraphicsOutput, UgaDraw);
1260 ConSplitterTextOutSetAttribute (&mConOut.TextOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
1261
1262 if (FeaturePcdGet (PcdConOutUgaSupport)) {
1263 //
1264 // Get the UGA mode data of ConOut from the current mode
1265 //
1266 if (GraphicsOutput != NULL) {
1267 Status = GraphicsOutput->QueryMode (GraphicsOutput, GraphicsOutput->Mode->Mode, &SizeOfInfo, &Info);
1268 if (EFI_ERROR (Status)) {
1269 return Status;
1270 }
1271 ASSERT ( SizeOfInfo <= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
1272
1273 mConOut.UgaHorizontalResolution = Info->HorizontalResolution;
1274 mConOut.UgaVerticalResolution = Info->VerticalResolution;
1275 mConOut.UgaColorDepth = 32;
1276 mConOut.UgaRefreshRate = 60;
1277
1278 FreePool (Info);
1279
1280 } else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
1281 Status = UgaDraw->GetMode (
1282 UgaDraw,
1283 &mConOut.UgaHorizontalResolution,
1284 &mConOut.UgaVerticalResolution,
1285 &mConOut.UgaColorDepth,
1286 &mConOut.UgaRefreshRate
1287 );
1288 }
1289 }
1290
1291 return Status;
1292 }
1293
1294
1295 /**
1296 Start Standard Error Consplitter on device handle.
1297
1298 @param This Driver Binding protocol instance pointer.
1299 @param ControllerHandle Handle of device to bind driver to.
1300 @param RemainingDevicePath Optional parameter use to pick a specific child
1301 device to start.
1302
1303 @retval EFI_SUCCESS Standard Error Consplitter is added to ControllerHandle.
1304 @retval other Standard Error Consplitter does not support this device.
1305
1306 **/
1307 EFI_STATUS
1308 EFIAPI
1309 ConSplitterStdErrDriverBindingStart (
1310 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1311 IN EFI_HANDLE ControllerHandle,
1312 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
1313 )
1314 {
1315 EFI_STATUS Status;
1316 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
1317
1318 if (mStdErr.CurrentNumberOfConsoles == 0) {
1319 //
1320 // Construct console output devices' private data
1321 //
1322 Status = ConSplitterTextOutConstructor (&mStdErr);
1323 if (!EFI_ERROR (Status)) {
1324 //
1325 // Create virtual device handle for StdErr Splitter
1326 //
1327 Status = gBS->InstallMultipleProtocolInterfaces (
1328 &mStdErr.VirtualHandle,
1329 &gEfiSimpleTextOutProtocolGuid,
1330 &mStdErr.TextOut,
1331 NULL
1332 );
1333 }
1334 if (EFI_ERROR (Status)) {
1335 return Status;
1336 }
1337 }
1338
1339 //
1340 // Start ConSplitter on ControllerHandle, and create the virtual
1341 // agrogated console device on first call Start for a StandardError handle.
1342 //
1343 Status = ConSplitterStart (
1344 This,
1345 ControllerHandle,
1346 mStdErr.VirtualHandle,
1347 &gEfiStandardErrorDeviceGuid,
1348 &gEfiSimpleTextOutProtocolGuid,
1349 (VOID **) &TextOut
1350 );
1351 if (EFI_ERROR (Status)) {
1352 return Status;
1353 }
1354
1355 //
1356 // When new console device is added, the new mode will be set later,
1357 // so put current mode back to init state.
1358 //
1359 mStdErr.TextOutMode.Mode = 0xFF;
1360
1361 //
1362 // If both ConOut and StdErr incorporate the same Text Out device,
1363 // their MaxMode and QueryData should be the intersection of both.
1364 //
1365 Status = ConSplitterTextOutAddDevice (&mStdErr, TextOut, NULL, NULL);
1366 ConSplitterTextOutSetAttribute (&mStdErr.TextOut, EFI_TEXT_ATTR (EFI_MAGENTA, EFI_BLACK));
1367 if (EFI_ERROR (Status)) {
1368 return Status;
1369 }
1370
1371 if (mStdErr.CurrentNumberOfConsoles == 1) {
1372 gST->StandardErrorHandle = mStdErr.VirtualHandle;
1373 gST->StdErr = &mStdErr.TextOut;
1374 //
1375 // Update the CRC32 in the EFI System Table header
1376 //
1377 gST->Hdr.CRC32 = 0;
1378 gBS->CalculateCrc32 (
1379 (UINT8 *) &gST->Hdr,
1380 gST->Hdr.HeaderSize,
1381 &gST->Hdr.CRC32
1382 );
1383 }
1384
1385 return Status;
1386 }
1387
1388
1389 /**
1390 Stop ConSplitter on device handle by closing Console Device Guid on device handle
1391 and the console virtual handle.
1392
1393 @param This Protocol instance pointer.
1394 @param ControllerHandle Handle of device.
1395 @param ConSplitterVirtualHandle Console virtual Handle.
1396 @param DeviceGuid The specified Console Device, such as ConInDev,
1397 ConOutDev.
1398 @param InterfaceGuid The specified protocol to be opened.
1399 @param Interface Protocol interface returned.
1400
1401 @retval EFI_SUCCESS Stop ConSplitter on ControllerHandle successfully.
1402 @retval other Failed to Stop ConSplitter on ControllerHandle.
1403
1404 **/
1405 EFI_STATUS
1406 ConSplitterStop (
1407 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1408 IN EFI_HANDLE ControllerHandle,
1409 IN EFI_HANDLE ConSplitterVirtualHandle,
1410 IN EFI_GUID *DeviceGuid,
1411 IN EFI_GUID *InterfaceGuid,
1412 IN VOID **Interface
1413 )
1414 {
1415 EFI_STATUS Status;
1416
1417 Status = gBS->OpenProtocol (
1418 ControllerHandle,
1419 InterfaceGuid,
1420 Interface,
1421 This->DriverBindingHandle,
1422 ControllerHandle,
1423 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1424 );
1425 if (EFI_ERROR (Status)) {
1426 return Status;
1427 }
1428 //
1429 // close the protocol refered.
1430 //
1431 gBS->CloseProtocol (
1432 ControllerHandle,
1433 DeviceGuid,
1434 This->DriverBindingHandle,
1435 ConSplitterVirtualHandle
1436 );
1437
1438 gBS->CloseProtocol (
1439 ControllerHandle,
1440 DeviceGuid,
1441 This->DriverBindingHandle,
1442 ControllerHandle
1443 );
1444
1445 return EFI_SUCCESS;
1446 }
1447
1448
1449 /**
1450 Stop Console In ConSplitter on ControllerHandle by closing Console In Devcice GUID.
1451
1452 @param This Driver Binding protocol instance pointer.
1453 @param ControllerHandle Handle of device to stop driver on
1454 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1455 children is zero stop the entire bus driver.
1456 @param ChildHandleBuffer List of Child Handles to Stop.
1457
1458 @retval EFI_SUCCESS This driver is removed ControllerHandle
1459 @retval other This driver was not removed from this device
1460
1461 **/
1462 EFI_STATUS
1463 EFIAPI
1464 ConSplitterConInDriverBindingStop (
1465 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1466 IN EFI_HANDLE ControllerHandle,
1467 IN UINTN NumberOfChildren,
1468 IN EFI_HANDLE *ChildHandleBuffer
1469 )
1470 {
1471 EFI_STATUS Status;
1472 EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;
1473 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInEx;
1474
1475 if (NumberOfChildren == 0) {
1476 return EFI_SUCCESS;
1477 }
1478
1479 Status = gBS->OpenProtocol (
1480 ControllerHandle,
1481 &gEfiSimpleTextInputExProtocolGuid,
1482 (VOID **) &TextInEx,
1483 This->DriverBindingHandle,
1484 ControllerHandle,
1485 EFI_OPEN_PROTOCOL_GET_PROTOCOL
1486 );
1487 if (!EFI_ERROR (Status)) {
1488 //
1489 // If Simple Text Input Ex protocol exists,
1490 // remove device from Text Input Ex devices list.
1491 //
1492 Status = ConSplitterTextInExDeleteDevice (&mConIn, TextInEx);
1493 if (EFI_ERROR (Status)) {
1494 return Status;
1495 }
1496 }
1497
1498 //
1499 // Close Simple Text In protocol on controller handle and virtual handle.
1500 //
1501 Status = ConSplitterStop (
1502 This,
1503 ControllerHandle,
1504 mConIn.VirtualHandle,
1505 &gEfiConsoleInDeviceGuid,
1506 &gEfiSimpleTextInProtocolGuid,
1507 (VOID **) &TextIn
1508 );
1509 if (EFI_ERROR (Status)) {
1510 return Status;
1511 }
1512
1513 //
1514 // Remove device from Text Input devices list.
1515 //
1516 return ConSplitterTextInDeleteDevice (&mConIn, TextIn);
1517 }
1518
1519
1520 /**
1521 Stop Simple Pointer protocol ConSplitter on ControllerHandle by closing
1522 Simple Pointer protocol.
1523
1524 @param This Driver Binding protocol instance pointer.
1525 @param ControllerHandle Handle of device to stop driver on
1526 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1527 children is zero stop the entire bus driver.
1528 @param ChildHandleBuffer List of Child Handles to Stop.
1529
1530 @retval EFI_SUCCESS This driver is removed ControllerHandle
1531 @retval other This driver was not removed from this device
1532
1533 **/
1534 EFI_STATUS
1535 EFIAPI
1536 ConSplitterSimplePointerDriverBindingStop (
1537 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1538 IN EFI_HANDLE ControllerHandle,
1539 IN UINTN NumberOfChildren,
1540 IN EFI_HANDLE *ChildHandleBuffer
1541 )
1542 {
1543 EFI_STATUS Status;
1544 EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer;
1545
1546 if (NumberOfChildren == 0) {
1547 return EFI_SUCCESS;
1548 }
1549
1550 //
1551 // Close Simple Pointer protocol on controller handle and virtual handle.
1552 //
1553 Status = ConSplitterStop (
1554 This,
1555 ControllerHandle,
1556 mConIn.VirtualHandle,
1557 &gEfiSimplePointerProtocolGuid,
1558 &gEfiSimplePointerProtocolGuid,
1559 (VOID **) &SimplePointer
1560 );
1561 if (EFI_ERROR (Status)) {
1562 return Status;
1563 }
1564
1565 //
1566 // Remove this device from Simple Pointer device list.
1567 //
1568 return ConSplitterSimplePointerDeleteDevice (&mConIn, SimplePointer);
1569 }
1570
1571
1572 /**
1573 Stop Absolute Pointer protocol ConSplitter on ControllerHandle by closing
1574 Absolute Pointer protocol.
1575
1576 @param This Driver Binding protocol instance pointer.
1577 @param ControllerHandle Handle of device to stop driver on
1578 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1579 children is zero stop the entire bus driver.
1580 @param ChildHandleBuffer List of Child Handles to Stop.
1581
1582 @retval EFI_SUCCESS This driver is removed ControllerHandle
1583 @retval other This driver was not removed from this device
1584
1585 **/
1586 EFI_STATUS
1587 EFIAPI
1588 ConSplitterAbsolutePointerDriverBindingStop (
1589 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1590 IN EFI_HANDLE ControllerHandle,
1591 IN UINTN NumberOfChildren,
1592 IN EFI_HANDLE *ChildHandleBuffer
1593 )
1594 {
1595 EFI_STATUS Status;
1596 EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointer;
1597
1598 if (NumberOfChildren == 0) {
1599 return EFI_SUCCESS;
1600 }
1601
1602 //
1603 // Close Absolute Pointer protocol on controller handle and virtual handle.
1604 //
1605 Status = ConSplitterStop (
1606 This,
1607 ControllerHandle,
1608 mConIn.VirtualHandle,
1609 &gEfiAbsolutePointerProtocolGuid,
1610 &gEfiAbsolutePointerProtocolGuid,
1611 (VOID **) &AbsolutePointer
1612 );
1613 if (EFI_ERROR (Status)) {
1614 return Status;
1615 }
1616
1617 //
1618 // Remove this device from Absolute Pointer device list.
1619 //
1620 return ConSplitterAbsolutePointerDeleteDevice (&mConIn, AbsolutePointer);
1621 }
1622
1623
1624 /**
1625 Stop Console Out ConSplitter on device handle by closing Console Out Devcice GUID.
1626
1627 @param This Driver Binding protocol instance pointer.
1628 @param ControllerHandle Handle of device to stop driver on
1629 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1630 children is zero stop the entire bus driver.
1631 @param ChildHandleBuffer List of Child Handles to Stop.
1632
1633 @retval EFI_SUCCESS This driver is removed ControllerHandle
1634 @retval other This driver was not removed from this device
1635
1636 **/
1637 EFI_STATUS
1638 EFIAPI
1639 ConSplitterConOutDriverBindingStop (
1640 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1641 IN EFI_HANDLE ControllerHandle,
1642 IN UINTN NumberOfChildren,
1643 IN EFI_HANDLE *ChildHandleBuffer
1644 )
1645 {
1646 EFI_STATUS Status;
1647 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
1648
1649 if (NumberOfChildren == 0) {
1650 return EFI_SUCCESS;
1651 }
1652
1653 //
1654 // Close Absolute Pointer protocol on controller handle and virtual handle.
1655 //
1656 Status = ConSplitterStop (
1657 This,
1658 ControllerHandle,
1659 mConOut.VirtualHandle,
1660 &gEfiConsoleOutDeviceGuid,
1661 &gEfiSimpleTextOutProtocolGuid,
1662 (VOID **) &TextOut
1663 );
1664 if (EFI_ERROR (Status)) {
1665 return Status;
1666 }
1667
1668 //
1669 // Remove this device from Text Out device list.
1670 //
1671 return ConSplitterTextOutDeleteDevice (&mConOut, TextOut);
1672 }
1673
1674
1675 /**
1676 Stop Standard Error ConSplitter on ControllerHandle by closing Standard Error GUID.
1677
1678 @param This Driver Binding protocol instance pointer.
1679 @param ControllerHandle Handle of device to stop driver on
1680 @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
1681 children is zero stop the entire bus driver.
1682 @param ChildHandleBuffer List of Child Handles to Stop.
1683
1684 @retval EFI_SUCCESS This driver is removed ControllerHandle
1685 @retval other This driver was not removed from this device
1686
1687 **/
1688 EFI_STATUS
1689 EFIAPI
1690 ConSplitterStdErrDriverBindingStop (
1691 IN EFI_DRIVER_BINDING_PROTOCOL *This,
1692 IN EFI_HANDLE ControllerHandle,
1693 IN UINTN NumberOfChildren,
1694 IN EFI_HANDLE *ChildHandleBuffer
1695 )
1696 {
1697 EFI_STATUS Status;
1698 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
1699
1700 if (NumberOfChildren == 0) {
1701 return EFI_SUCCESS;
1702 }
1703
1704 //
1705 // Close Standard Error Device on controller handle and virtual handle.
1706 //
1707 Status = ConSplitterStop (
1708 This,
1709 ControllerHandle,
1710 mStdErr.VirtualHandle,
1711 &gEfiStandardErrorDeviceGuid,
1712 &gEfiSimpleTextOutProtocolGuid,
1713 (VOID **) &TextOut
1714 );
1715 if (EFI_ERROR (Status)) {
1716 return Status;
1717 }
1718 //
1719 // Delete this console error out device's data structures.
1720 //
1721 Status = ConSplitterTextOutDeleteDevice (&mStdErr, TextOut);
1722 if (EFI_ERROR (Status)) {
1723 return Status;
1724 }
1725
1726 if (mStdErr.CurrentNumberOfConsoles == 0) {
1727 mStdErr.VirtualHandle = NULL;
1728
1729 gST->StandardErrorHandle = NULL;
1730 gST->StdErr = NULL;
1731 //
1732 // Update the CRC32 in the EFI System Table header
1733 //
1734 gST->Hdr.CRC32 = 0;
1735 gBS->CalculateCrc32 (
1736 (UINT8 *) &gST->Hdr,
1737 gST->Hdr.HeaderSize,
1738 &gST->Hdr.CRC32
1739 );
1740
1741 //
1742 // Uninstall Simple Text Output protocol from StdErr Handle.
1743 //
1744 gBS->UninstallMultipleProtocolInterfaces (
1745 mStdErr.VirtualHandle,
1746 &gEfiSimpleTextOutProtocolGuid,
1747 &mStdErr.TextOut,
1748 NULL
1749 );
1750 }
1751
1752 return Status;
1753 }
1754
1755
1756 /**
1757 Take the passed in Buffer of size SizeOfCount and grow the buffer
1758 by MAX (CONSOLE_SPLITTER_CONSOLES_ALLOC_UNIT, MaxGrow) * SizeOfCount
1759 bytes. Copy the current data in Buffer to the new version of Buffer
1760 and free the old version of buffer.
1761
1762 @param SizeOfCount Size of element in array.
1763 @param Count Current number of elements in array.
1764 @param Buffer Bigger version of passed in Buffer with all the
1765 data.
1766
1767 @retval EFI_SUCCESS Buffer size has grown.
1768 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
1769
1770 **/
1771 EFI_STATUS
1772 ConSplitterGrowBuffer (
1773 IN UINTN SizeOfCount,
1774 IN OUT UINTN *Count,
1775 IN OUT VOID **Buffer
1776 )
1777 {
1778 VOID *Ptr;
1779
1780 //
1781 // grow the buffer to new buffer size,
1782 // copy the old buffer's content to the new-size buffer,
1783 // then free the old buffer.
1784 //
1785 *Count += CONSOLE_SPLITTER_CONSOLES_ALLOC_UNIT;
1786 Ptr = ReallocatePool (
1787 SizeOfCount * ((*Count) - CONSOLE_SPLITTER_CONSOLES_ALLOC_UNIT),
1788 SizeOfCount * (*Count),
1789 *Buffer
1790 );
1791 if (Ptr == NULL) {
1792 return EFI_OUT_OF_RESOURCES;
1793 }
1794 *Buffer = Ptr;
1795 return EFI_SUCCESS;
1796 }
1797
1798
1799 /**
1800 Add Text Input Device in Consplitter Text Input list.
1801
1802 @param Private Text In Splitter pointer.
1803 @param TextIn Simple Text Input protocol pointer.
1804
1805 @retval EFI_SUCCESS Text Input Device added successfully.
1806 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
1807
1808 **/
1809 EFI_STATUS
1810 ConSplitterTextInAddDevice (
1811 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
1812 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn
1813 )
1814 {
1815 EFI_STATUS Status;
1816
1817 //
1818 // If the Text In List is full, enlarge it by calling ConSplitterGrowBuffer().
1819 //
1820 if (Private->CurrentNumberOfConsoles >= Private->TextInListCount) {
1821 Status = ConSplitterGrowBuffer (
1822 sizeof (EFI_SIMPLE_TEXT_INPUT_PROTOCOL *),
1823 &Private->TextInListCount,
1824 (VOID **) &Private->TextInList
1825 );
1826 if (EFI_ERROR (Status)) {
1827 return EFI_OUT_OF_RESOURCES;
1828 }
1829 }
1830 //
1831 // Add the new text-in device data structure into the Text In List.
1832 //
1833 Private->TextInList[Private->CurrentNumberOfConsoles] = TextIn;
1834 Private->CurrentNumberOfConsoles++;
1835
1836 //
1837 // Extra CheckEvent added to reduce the double CheckEvent().
1838 //
1839 gBS->CheckEvent (TextIn->WaitForKey);
1840
1841 return EFI_SUCCESS;
1842 }
1843
1844
1845 /**
1846 Remove Text Input Device from Consplitter Text Input list.
1847
1848 @param Private Text In Splitter pointer.
1849 @param TextIn Simple Text protocol pointer.
1850
1851 @retval EFI_SUCCESS Simple Text Device removed successfully.
1852 @retval EFI_NOT_FOUND No Simple Text Device found.
1853
1854 **/
1855 EFI_STATUS
1856 ConSplitterTextInDeleteDevice (
1857 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
1858 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn
1859 )
1860 {
1861 UINTN Index;
1862 //
1863 // Remove the specified text-in device data structure from the Text In List,
1864 // and rearrange the remaining data structures in the Text In List.
1865 //
1866 for (Index = 0; Index < Private->CurrentNumberOfConsoles; Index++) {
1867 if (Private->TextInList[Index] == TextIn) {
1868 for (Index = Index; Index < Private->CurrentNumberOfConsoles - 1; Index++) {
1869 Private->TextInList[Index] = Private->TextInList[Index + 1];
1870 }
1871
1872 Private->CurrentNumberOfConsoles--;
1873 return EFI_SUCCESS;
1874 }
1875 }
1876
1877 return EFI_NOT_FOUND;
1878 }
1879
1880 /**
1881 Add Text Input Ex Device in Consplitter Text Input Ex list.
1882
1883 @param Private Text In Splitter pointer.
1884 @param TextInEx Simple Text Input Ex Input protocol pointer.
1885
1886 @retval EFI_SUCCESS Text Input Ex Device added successfully.
1887 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
1888
1889 **/
1890 EFI_STATUS
1891 ConSplitterTextInExAddDevice (
1892 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
1893 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInEx
1894 )
1895 {
1896 EFI_STATUS Status;
1897
1898 //
1899 // If the Text Input Ex List is full, enlarge it by calling ConSplitterGrowBuffer().
1900 //
1901 if (Private->CurrentNumberOfExConsoles >= Private->TextInExListCount) {
1902 Status = ConSplitterGrowBuffer (
1903 sizeof (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *),
1904 &Private->TextInExListCount,
1905 (VOID **) &Private->TextInExList
1906 );
1907 if (EFI_ERROR (Status)) {
1908 return EFI_OUT_OF_RESOURCES;
1909 }
1910 }
1911 //
1912 // Add the new text-in device data structure into the Text Input Ex List.
1913 //
1914 Private->TextInExList[Private->CurrentNumberOfExConsoles] = TextInEx;
1915 Private->CurrentNumberOfExConsoles++;
1916
1917 //
1918 // Extra CheckEvent added to reduce the double CheckEvent().
1919 //
1920 gBS->CheckEvent (TextInEx->WaitForKeyEx);
1921
1922 return EFI_SUCCESS;
1923 }
1924
1925 /**
1926 Remove Text Ex Device from Consplitter Text Input Ex list.
1927
1928 @param Private Text In Splitter pointer.
1929 @param TextInEx Simple Text Ex protocol pointer.
1930
1931 @retval EFI_SUCCESS Simple Text Input Ex Device removed successfully.
1932 @retval EFI_NOT_FOUND No Simple Text Input Ex Device found.
1933
1934 **/
1935 EFI_STATUS
1936 ConSplitterTextInExDeleteDevice (
1937 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
1938 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInEx
1939 )
1940 {
1941 UINTN Index;
1942 //
1943 // Remove the specified text-in device data structure from the Text Input Ex List,
1944 // and rearrange the remaining data structures in the Text In List.
1945 //
1946 for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
1947 if (Private->TextInExList[Index] == TextInEx) {
1948 for (Index = Index; Index < Private->CurrentNumberOfExConsoles - 1; Index++) {
1949 Private->TextInExList[Index] = Private->TextInExList[Index + 1];
1950 }
1951
1952 Private->CurrentNumberOfExConsoles--;
1953 return EFI_SUCCESS;
1954 }
1955 }
1956
1957 return EFI_NOT_FOUND;
1958 }
1959
1960
1961 /**
1962 Add Simple Pointer Device in Consplitter Simple Pointer list.
1963
1964 @param Private Text In Splitter pointer.
1965 @param SimplePointer Simple Pointer protocol pointer.
1966
1967 @retval EFI_SUCCESS Simple Pointer Device added successfully.
1968 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
1969
1970 **/
1971 EFI_STATUS
1972 ConSplitterSimplePointerAddDevice (
1973 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
1974 IN EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer
1975 )
1976 {
1977 EFI_STATUS Status;
1978
1979 //
1980 // If the Simple Pointer List is full, enlarge it by calling ConSplitterGrowBuffer().
1981 //
1982 if (Private->CurrentNumberOfPointers >= Private->PointerListCount) {
1983 Status = ConSplitterGrowBuffer (
1984 sizeof (EFI_SIMPLE_POINTER_PROTOCOL *),
1985 &Private->PointerListCount,
1986 (VOID **) &Private->PointerList
1987 );
1988 if (EFI_ERROR (Status)) {
1989 return EFI_OUT_OF_RESOURCES;
1990 }
1991 }
1992 //
1993 // Add the new text-in device data structure into the Simple Pointer List.
1994 //
1995 Private->PointerList[Private->CurrentNumberOfPointers] = SimplePointer;
1996 Private->CurrentNumberOfPointers++;
1997
1998 return EFI_SUCCESS;
1999 }
2000
2001
2002 /**
2003 Remove Simple Pointer Device from Consplitter Simple Pointer list.
2004
2005 @param Private Text In Splitter pointer.
2006 @param SimplePointer Simple Pointer protocol pointer.
2007
2008 @retval EFI_SUCCESS Simple Pointer Device removed successfully.
2009 @retval EFI_NOT_FOUND No Simple Pointer Device found.
2010
2011 **/
2012 EFI_STATUS
2013 ConSplitterSimplePointerDeleteDevice (
2014 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
2015 IN EFI_SIMPLE_POINTER_PROTOCOL *SimplePointer
2016 )
2017 {
2018 UINTN Index;
2019 //
2020 // Remove the specified text-in device data structure from the Simple Pointer List,
2021 // and rearrange the remaining data structures in the Text In List.
2022 //
2023 for (Index = 0; Index < Private->CurrentNumberOfPointers; Index++) {
2024 if (Private->PointerList[Index] == SimplePointer) {
2025 for (Index = Index; Index < Private->CurrentNumberOfPointers - 1; Index++) {
2026 Private->PointerList[Index] = Private->PointerList[Index + 1];
2027 }
2028
2029 Private->CurrentNumberOfPointers--;
2030 return EFI_SUCCESS;
2031 }
2032 }
2033
2034 return EFI_NOT_FOUND;
2035 }
2036
2037
2038 /**
2039 Add Absolute Pointer Device in Consplitter Absolute Pointer list.
2040
2041 @param Private Text In Splitter pointer.
2042 @param AbsolutePointer Absolute Pointer protocol pointer.
2043
2044 @retval EFI_SUCCESS Absolute Pointer Device added successfully.
2045 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2046
2047 **/
2048 EFI_STATUS
2049 ConSplitterAbsolutePointerAddDevice (
2050 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
2051 IN EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointer
2052 )
2053 {
2054 EFI_STATUS Status;
2055
2056 //
2057 // If the Absolute Pointer List is full, enlarge it by calling ConSplitterGrowBuffer().
2058 //
2059 if (Private->CurrentNumberOfAbsolutePointers >= Private->AbsolutePointerListCount) {
2060 Status = ConSplitterGrowBuffer (
2061 sizeof (EFI_ABSOLUTE_POINTER_PROTOCOL *),
2062 &Private->AbsolutePointerListCount,
2063 (VOID **) &Private->AbsolutePointerList
2064 );
2065 if (EFI_ERROR (Status)) {
2066 return EFI_OUT_OF_RESOURCES;
2067 }
2068 }
2069 //
2070 // Add the new text-in device data structure into the Absolute Pointer List.
2071 //
2072 Private->AbsolutePointerList[Private->CurrentNumberOfAbsolutePointers] = AbsolutePointer;
2073 Private->CurrentNumberOfAbsolutePointers++;
2074
2075 return EFI_SUCCESS;
2076 }
2077
2078
2079 /**
2080 Remove Absolute Pointer Device from Consplitter Absolute Pointer list.
2081
2082 @param Private Text In Splitter pointer.
2083 @param AbsolutePointer Absolute Pointer protocol pointer.
2084
2085 @retval EFI_SUCCESS Absolute Pointer Device removed successfully.
2086 @retval EFI_NOT_FOUND No Absolute Pointer Device found.
2087
2088 **/
2089 EFI_STATUS
2090 ConSplitterAbsolutePointerDeleteDevice (
2091 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
2092 IN EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointer
2093 )
2094 {
2095 UINTN Index;
2096 //
2097 // Remove the specified text-in device data structure from the Absolute Pointer List,
2098 // and rearrange the remaining data structures from the Absolute Pointer List.
2099 //
2100 for (Index = 0; Index < Private->CurrentNumberOfAbsolutePointers; Index++) {
2101 if (Private->AbsolutePointerList[Index] == AbsolutePointer) {
2102 for (Index = Index; Index < Private->CurrentNumberOfAbsolutePointers - 1; Index++) {
2103 Private->AbsolutePointerList[Index] = Private->AbsolutePointerList[Index + 1];
2104 }
2105
2106 Private->CurrentNumberOfAbsolutePointers--;
2107 return EFI_SUCCESS;
2108 }
2109 }
2110
2111 return EFI_NOT_FOUND;
2112 }
2113
2114 /**
2115 Reallocate Text Out mode map.
2116
2117 Allocate new buffer and copy original buffer into the new buffer.
2118
2119 @param Private Consplitter Text Out pointer.
2120
2121 @retval EFI_SUCCESS Buffer size has grown
2122 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2123
2124 **/
2125 EFI_STATUS
2126 ConSplitterGrowMapTable (
2127 IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private
2128 )
2129 {
2130 UINTN Size;
2131 UINTN NewSize;
2132 UINTN TotalSize;
2133 INT32 *TextOutModeMap;
2134 INT32 *OldTextOutModeMap;
2135 INT32 *SrcAddress;
2136 INT32 Index;
2137
2138 NewSize = Private->TextOutListCount * sizeof (INT32);
2139 OldTextOutModeMap = Private->TextOutModeMap;
2140 TotalSize = NewSize * (Private->TextOutQueryDataCount);
2141
2142 //
2143 // Allocate new buffer for Text Out List.
2144 //
2145 TextOutModeMap = AllocatePool (TotalSize);
2146 if (TextOutModeMap == NULL) {
2147 return EFI_OUT_OF_RESOURCES;
2148 }
2149
2150 SetMem (TextOutModeMap, TotalSize, 0xFF);
2151 Private->TextOutModeMap = TextOutModeMap;
2152
2153 //
2154 // If TextOutList has been enlarged, need to realloc the mode map table
2155 // The mode map table is regarded as a two dimension array.
2156 //
2157 // Old New
2158 // 0 ---------> TextOutListCount ----> TextOutListCount
2159 // | -------------------------------------------
2160 // | | | |
2161 // | | | |
2162 // | | | |
2163 // | | | |
2164 // | | | |
2165 // \/ | | |
2166 // -------------------------------------------
2167 // QueryDataCount
2168 //
2169 if (OldTextOutModeMap != NULL) {
2170
2171 Size = Private->CurrentNumberOfConsoles * sizeof (INT32);
2172 Index = 0;
2173 SrcAddress = OldTextOutModeMap;
2174
2175 //
2176 // Copy the old data to the new one
2177 //
2178 while (Index < Private->TextOutMode.MaxMode) {
2179 CopyMem (TextOutModeMap, SrcAddress, Size);
2180 TextOutModeMap += NewSize;
2181 SrcAddress += Size;
2182 Index++;
2183 }
2184 //
2185 // Free the old buffer
2186 //
2187 FreePool (OldTextOutModeMap);
2188 }
2189
2190 return EFI_SUCCESS;
2191 }
2192
2193
2194 /**
2195 Add new device's output mode to console splitter's mode list.
2196
2197 @param Private Text Out Splitter pointer
2198 @param TextOut Simple Text Output protocol pointer.
2199
2200 @retval EFI_SUCCESS Device added successfully.
2201 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2202
2203 **/
2204 EFI_STATUS
2205 ConSplitterAddOutputMode (
2206 IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
2207 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
2208 )
2209 {
2210 EFI_STATUS Status;
2211 INT32 MaxMode;
2212 INT32 Mode;
2213 UINTN Index;
2214
2215 MaxMode = TextOut->Mode->MaxMode;
2216 Private->TextOutMode.MaxMode = MaxMode;
2217
2218 //
2219 // Grow the buffer if query data buffer is not large enough to
2220 // hold all the mode supported by the first console.
2221 //
2222 while (MaxMode > (INT32) Private->TextOutQueryDataCount) {
2223 Status = ConSplitterGrowBuffer (
2224 sizeof (TEXT_OUT_SPLITTER_QUERY_DATA),
2225 &Private->TextOutQueryDataCount,
2226 (VOID **) &Private->TextOutQueryData
2227 );
2228 if (EFI_ERROR (Status)) {
2229 return EFI_OUT_OF_RESOURCES;
2230 }
2231 }
2232 //
2233 // Allocate buffer for the output mode map
2234 //
2235 Status = ConSplitterGrowMapTable (Private);
2236 if (EFI_ERROR (Status)) {
2237 return EFI_OUT_OF_RESOURCES;
2238 }
2239 //
2240 // As the first textout device, directly add the mode in to QueryData
2241 // and at the same time record the mapping between QueryData and TextOut.
2242 //
2243 Mode = 0;
2244 Index = 0;
2245 while (Mode < MaxMode) {
2246 Status = TextOut->QueryMode (
2247 TextOut,
2248 Mode,
2249 &Private->TextOutQueryData[Mode].Columns,
2250 &Private->TextOutQueryData[Mode].Rows
2251 );
2252 //
2253 // If mode 1 (80x50) is not supported, make sure mode 1 in TextOutQueryData
2254 // is clear to 0x0.
2255 //
2256 if ((EFI_ERROR(Status)) && (Mode == 1)) {
2257 Private->TextOutQueryData[Mode].Columns = 0;
2258 Private->TextOutQueryData[Mode].Rows = 0;
2259 }
2260 Private->TextOutModeMap[Index] = Mode;
2261 Mode++;
2262 Index += Private->TextOutListCount;
2263 }
2264
2265 return EFI_SUCCESS;
2266 }
2267
2268 /**
2269 Reconstruct TextOutModeMap to get intersection of modes.
2270
2271 This routine reconstruct TextOutModeMap to get the intersection
2272 of modes for all console out devices. Because EFI/UEFI spec require
2273 mode 0 is 80x25, mode 1 is 80x50, this routine will not check the
2274 intersection for mode 0 and mode 1.
2275
2276 @param TextOutModeMap Current text out mode map, begin with the mode 80x25
2277 @param NewlyAddedMap New text out mode map, begin with the mode 80x25
2278 @param MapStepSize Mode step size for one console device
2279 @param NewMapStepSize New Mode step size for one console device
2280 @param MaxMode IN: Current max text mode, OUT: Updated max text mode.
2281 @param CurrentMode IN: Current text mode, OUT: Updated current text mode.
2282
2283 **/
2284 VOID
2285 ConSplitterGetIntersection (
2286 IN INT32 *TextOutModeMap,
2287 IN INT32 *NewlyAddedMap,
2288 IN UINTN MapStepSize,
2289 IN UINTN NewMapStepSize,
2290 IN OUT INT32 *MaxMode,
2291 IN OUT INT32 *CurrentMode
2292 )
2293 {
2294 INT32 Index;
2295 INT32 *CurrentMapEntry;
2296 INT32 *NextMapEntry;
2297 INT32 *NewMapEntry;
2298 INT32 CurrentMaxMode;
2299 INT32 Mode;
2300
2301 //
2302 // According to EFI/UEFI spec, mode 0 and mode 1 have been reserved
2303 // for 80x25 and 80x50 in Simple Text Out protocol, so don't make intersection
2304 // for mode 0 and mode 1, mode number starts from 2.
2305 //
2306 Index = 2;
2307 CurrentMapEntry = &TextOutModeMap[MapStepSize * 2];
2308 NextMapEntry = CurrentMapEntry;
2309 NewMapEntry = &NewlyAddedMap[NewMapStepSize * 2];
2310
2311 CurrentMaxMode = *MaxMode;
2312 Mode = *CurrentMode;
2313
2314 while (Index < CurrentMaxMode) {
2315 if (*NewMapEntry == -1) {
2316 //
2317 // This mode is not supported any more. Remove it. Special care
2318 // must be taken as this remove will also affect current mode;
2319 //
2320 if (Index == *CurrentMode) {
2321 Mode = -1;
2322 } else if (Index < *CurrentMode) {
2323 Mode--;
2324 }
2325 (*MaxMode)--;
2326 } else {
2327 if (CurrentMapEntry != NextMapEntry) {
2328 CopyMem (NextMapEntry, CurrentMapEntry, MapStepSize * sizeof (INT32));
2329 }
2330
2331 NextMapEntry += MapStepSize;
2332 }
2333
2334 CurrentMapEntry += MapStepSize;
2335 NewMapEntry += NewMapStepSize;
2336 Index++;
2337 }
2338
2339 *CurrentMode = Mode;
2340
2341 return ;
2342 }
2343
2344 /**
2345 Sync the device's output mode to console splitter's mode list.
2346
2347 @param Private Text Out Splitter pointer.
2348 @param TextOut Simple Text Output protocol pointer.
2349
2350 **/
2351 VOID
2352 ConSplitterSyncOutputMode (
2353 IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
2354 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
2355 )
2356 {
2357 INT32 CurrentMaxMode;
2358 INT32 Mode;
2359 INT32 Index;
2360 INT32 *TextOutModeMap;
2361 INT32 *MapTable;
2362 INT32 QueryMode;
2363 TEXT_OUT_SPLITTER_QUERY_DATA *TextOutQueryData;
2364 UINTN Rows;
2365 UINTN Columns;
2366 UINTN StepSize;
2367 EFI_STATUS Status;
2368
2369 //
2370 // Must make sure that current mode won't change even if mode number changes
2371 //
2372 CurrentMaxMode = Private->TextOutMode.MaxMode;
2373 TextOutModeMap = Private->TextOutModeMap;
2374 StepSize = Private->TextOutListCount;
2375 TextOutQueryData = Private->TextOutQueryData;
2376
2377 //
2378 // Query all the mode that the newly added TextOut supports
2379 //
2380 Mode = 0;
2381 MapTable = TextOutModeMap + Private->CurrentNumberOfConsoles;
2382 while (Mode < TextOut->Mode->MaxMode) {
2383 Status = TextOut->QueryMode (TextOut, Mode, &Columns, &Rows);
2384
2385 if (EFI_ERROR(Status)) {
2386 if (Mode == 1) {
2387 //
2388 // If mode 1 (80x50) is not supported, make sure mode 1 in TextOutQueryData
2389 // is clear to 0x0.
2390 //
2391 MapTable[StepSize] = Mode;
2392 TextOutQueryData[Mode].Columns = 0;
2393 TextOutQueryData[Mode].Rows = 0;
2394 }
2395 Mode++;
2396 continue;
2397 }
2398 //
2399 // Search the intersection map and QueryData database to see if they intersects
2400 //
2401 Index = 0;
2402 while (Index < CurrentMaxMode) {
2403 QueryMode = *(TextOutModeMap + Index * StepSize);
2404 if ((TextOutQueryData[QueryMode].Rows == Rows) && (TextOutQueryData[QueryMode].Columns == Columns)) {
2405 MapTable[Index * StepSize] = Mode;
2406 break;
2407 }
2408 Index++;
2409 }
2410 Mode++;
2411 }
2412 //
2413 // Now search the TextOutModeMap table to find the intersection of supported
2414 // mode between ConSplitter and the newly added device.
2415 //
2416 ConSplitterGetIntersection (
2417 TextOutModeMap,
2418 MapTable,
2419 StepSize,
2420 StepSize,
2421 &Private->TextOutMode.MaxMode,
2422 &Private->TextOutMode.Mode
2423 );
2424
2425 return ;
2426 }
2427
2428
2429 /**
2430 Sync output device between ConOut and StdErr output.
2431
2432 @retval EFI_SUCCESS Sync implemented successfully.
2433 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2434
2435 **/
2436 EFI_STATUS
2437 ConSplitterGetIntersectionBetweenConOutAndStrErr (
2438 VOID
2439 )
2440 {
2441 UINTN ConOutNumOfConsoles;
2442 UINTN StdErrNumOfConsoles;
2443 TEXT_OUT_AND_GOP_DATA *ConOutTextOutList;
2444 TEXT_OUT_AND_GOP_DATA *StdErrTextOutList;
2445 UINTN Indexi;
2446 UINTN Indexj;
2447 UINTN ConOutRows;
2448 UINTN ConOutColumns;
2449 UINTN StdErrRows;
2450 UINTN StdErrColumns;
2451 INT32 ConOutMaxMode;
2452 INT32 StdErrMaxMode;
2453 INT32 ConOutMode;
2454 INT32 StdErrMode;
2455 INT32 Mode;
2456 INT32 Index;
2457 INT32 *ConOutModeMap;
2458 INT32 *StdErrModeMap;
2459 INT32 *ConOutMapTable;
2460 INT32 *StdErrMapTable;
2461 TEXT_OUT_SPLITTER_QUERY_DATA *ConOutQueryData;
2462 TEXT_OUT_SPLITTER_QUERY_DATA *StdErrQueryData;
2463 UINTN ConOutStepSize;
2464 UINTN StdErrStepSize;
2465 BOOLEAN FoundTheSameTextOut;
2466 UINTN ConOutMapTableSize;
2467 UINTN StdErrMapTableSize;
2468
2469 ConOutNumOfConsoles = mConOut.CurrentNumberOfConsoles;
2470 StdErrNumOfConsoles = mStdErr.CurrentNumberOfConsoles;
2471 ConOutTextOutList = mConOut.TextOutList;
2472 StdErrTextOutList = mStdErr.TextOutList;
2473
2474 Indexi = 0;
2475 FoundTheSameTextOut = FALSE;
2476 while ((Indexi < ConOutNumOfConsoles) && (!FoundTheSameTextOut)) {
2477 Indexj = 0;
2478 while (Indexj < StdErrNumOfConsoles) {
2479 if (ConOutTextOutList->TextOut == StdErrTextOutList->TextOut) {
2480 FoundTheSameTextOut = TRUE;
2481 break;
2482 }
2483
2484 Indexj++;
2485 StdErrTextOutList++;
2486 }
2487
2488 Indexi++;
2489 ConOutTextOutList++;
2490 }
2491
2492 if (!FoundTheSameTextOut) {
2493 return EFI_SUCCESS;
2494 }
2495 //
2496 // Must make sure that current mode won't change even if mode number changes
2497 //
2498 ConOutMaxMode = mConOut.TextOutMode.MaxMode;
2499 ConOutModeMap = mConOut.TextOutModeMap;
2500 ConOutStepSize = mConOut.TextOutListCount;
2501 ConOutQueryData = mConOut.TextOutQueryData;
2502
2503 StdErrMaxMode = mStdErr.TextOutMode.MaxMode;
2504 StdErrModeMap = mStdErr.TextOutModeMap;
2505 StdErrStepSize = mStdErr.TextOutListCount;
2506 StdErrQueryData = mStdErr.TextOutQueryData;
2507
2508 //
2509 // Allocate the map table and set the map table's index to -1.
2510 //
2511 ConOutMapTableSize = ConOutMaxMode * sizeof (INT32);
2512 ConOutMapTable = AllocateZeroPool (ConOutMapTableSize);
2513 if (ConOutMapTable == NULL) {
2514 return EFI_OUT_OF_RESOURCES;
2515 }
2516
2517 SetMem (ConOutMapTable, ConOutMapTableSize, 0xFF);
2518
2519 StdErrMapTableSize = StdErrMaxMode * sizeof (INT32);
2520 StdErrMapTable = AllocateZeroPool (StdErrMapTableSize);
2521 if (StdErrMapTable == NULL) {
2522 return EFI_OUT_OF_RESOURCES;
2523 }
2524
2525 SetMem (StdErrMapTable, StdErrMapTableSize, 0xFF);
2526
2527 //
2528 // Find the intersection of the two set of modes. If they actually intersect, the
2529 // correponding entry in the map table is set to 1.
2530 //
2531 Mode = 0;
2532 while (Mode < ConOutMaxMode) {
2533 //
2534 // Search the intersection map and QueryData database to see if they intersect
2535 //
2536 Index = 0;
2537 ConOutMode = *(ConOutModeMap + Mode * ConOutStepSize);
2538 ConOutRows = ConOutQueryData[ConOutMode].Rows;
2539 ConOutColumns = ConOutQueryData[ConOutMode].Columns;
2540 while (Index < StdErrMaxMode) {
2541 StdErrMode = *(StdErrModeMap + Index * StdErrStepSize);
2542 StdErrRows = StdErrQueryData[StdErrMode].Rows;
2543 StdErrColumns = StdErrQueryData[StdErrMode].Columns;
2544 if ((StdErrRows == ConOutRows) && (StdErrColumns == ConOutColumns)) {
2545 ConOutMapTable[Mode] = 1;
2546 StdErrMapTable[Index] = 1;
2547 break;
2548 }
2549
2550 Index++;
2551 }
2552
2553 Mode++;
2554 }
2555 //
2556 // Now search the TextOutModeMap table to find the intersection of supported
2557 // mode between ConSplitter and the newly added device.
2558 //
2559 ConSplitterGetIntersection (
2560 ConOutModeMap,
2561 ConOutMapTable,
2562 mConOut.TextOutListCount,
2563 1,
2564 &(mConOut.TextOutMode.MaxMode),
2565 &(mConOut.TextOutMode.Mode)
2566 );
2567
2568 if (mConOut.TextOutMode.Mode < 0) {
2569 mConOut.TextOut.SetMode (&(mConOut.TextOut), 0);
2570 }
2571
2572 ConSplitterGetIntersection (
2573 StdErrModeMap,
2574 StdErrMapTable,
2575 mStdErr.TextOutListCount,
2576 1,
2577 &(mStdErr.TextOutMode.MaxMode),
2578 &(mStdErr.TextOutMode.Mode)
2579 );
2580
2581 if (mStdErr.TextOutMode.Mode < 0) {
2582 mStdErr.TextOut.SetMode (&(mStdErr.TextOut), 0);
2583 }
2584
2585 FreePool (ConOutMapTable);
2586 FreePool (StdErrMapTable);
2587
2588 return EFI_SUCCESS;
2589 }
2590
2591
2592 /**
2593 Add Grahpics Output modes into Consplitter Text Out list.
2594
2595 @param Private Text Out Splitter pointer.
2596 @param GraphicsOutput Graphics Output protocol pointer.
2597 @param UgaDraw UGA Draw protocol pointer.
2598
2599 @retval EFI_SUCCESS Output mode added successfully.
2600 @retval other Failed to add output mode.
2601
2602 **/
2603 EFI_STATUS
2604 ConSplitterAddGraphicsOutputMode (
2605 IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
2606 IN EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput,
2607 IN EFI_UGA_DRAW_PROTOCOL *UgaDraw
2608 )
2609 {
2610 EFI_STATUS Status;
2611 UINTN Index;
2612 UINTN CurrentIndex;
2613 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Mode;
2614 UINTN SizeOfInfo;
2615 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
2616 EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *CurrentGraphicsOutputMode;
2617 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *ModeBuffer;
2618 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *MatchedMode;
2619 UINTN NumberIndex;
2620 BOOLEAN Match;
2621 BOOLEAN AlreadyExist;
2622 UINT32 UgaHorizontalResolution;
2623 UINT32 UgaVerticalResolution;
2624 UINT32 UgaColorDepth;
2625 UINT32 UgaRefreshRate;
2626
2627 ASSERT (GraphicsOutput != NULL || UgaDraw != NULL);
2628
2629 CurrentGraphicsOutputMode = Private->GraphicsOutput.Mode;
2630
2631 Index = 0;
2632 CurrentIndex = 0;
2633
2634 if (Private->CurrentNumberOfUgaDraw != 0) {
2635 //
2636 // If any UGA device has already been added, then there is no need to
2637 // calculate intersection of display mode of different GOP/UGA device,
2638 // since only one display mode will be exported (i.e. user-defined mode)
2639 //
2640 goto Done;
2641 }
2642
2643 if (GraphicsOutput != NULL) {
2644 if (Private->CurrentNumberOfGraphicsOutput == 0) {
2645 //
2646 // This is the first Graphics Output device added
2647 //
2648 CurrentGraphicsOutputMode->MaxMode = GraphicsOutput->Mode->MaxMode;
2649 CurrentGraphicsOutputMode->Mode = GraphicsOutput->Mode->Mode;
2650 CopyMem (CurrentGraphicsOutputMode->Info, GraphicsOutput->Mode->Info, GraphicsOutput->Mode->SizeOfInfo);
2651 CurrentGraphicsOutputMode->SizeOfInfo = GraphicsOutput->Mode->SizeOfInfo;
2652 CurrentGraphicsOutputMode->FrameBufferBase = GraphicsOutput->Mode->FrameBufferBase;
2653 CurrentGraphicsOutputMode->FrameBufferSize = GraphicsOutput->Mode->FrameBufferSize;
2654
2655 //
2656 // Allocate resource for the private mode buffer
2657 //
2658 ModeBuffer = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION) * GraphicsOutput->Mode->MaxMode);
2659 if (ModeBuffer == NULL) {
2660 return EFI_OUT_OF_RESOURCES;
2661 }
2662 FreePool (Private->GraphicsOutputModeBuffer);
2663 Private->GraphicsOutputModeBuffer = ModeBuffer;
2664
2665 //
2666 // Store all supported display modes to the private mode buffer
2667 //
2668 Mode = ModeBuffer;
2669 for (Index = 0; Index < GraphicsOutput->Mode->MaxMode; Index++) {
2670 //
2671 // The Info buffer would be allocated by callee
2672 //
2673 Status = GraphicsOutput->QueryMode (GraphicsOutput, (UINT32) Index, &SizeOfInfo, &Info);
2674 if (EFI_ERROR (Status)) {
2675 return Status;
2676 }
2677 ASSERT ( SizeOfInfo <= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
2678 CopyMem (Mode, Info, SizeOfInfo);
2679 Mode++;
2680 FreePool (Info);
2681 }
2682 } else {
2683 //
2684 // Check intersection of display mode
2685 //
2686 ModeBuffer = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION) * CurrentGraphicsOutputMode->MaxMode);
2687 if (ModeBuffer == NULL) {
2688 return EFI_OUT_OF_RESOURCES;
2689 }
2690
2691 MatchedMode = ModeBuffer;
2692 Mode = &Private->GraphicsOutputModeBuffer[0];
2693 for (Index = 0; Index < CurrentGraphicsOutputMode->MaxMode; Index++) {
2694 Match = FALSE;
2695
2696 for (NumberIndex = 0; NumberIndex < GraphicsOutput->Mode->MaxMode; NumberIndex++) {
2697 //
2698 // The Info buffer would be allocated by callee
2699 //
2700 Status = GraphicsOutput->QueryMode (GraphicsOutput, (UINT32) NumberIndex, &SizeOfInfo, &Info);
2701 if (EFI_ERROR (Status)) {
2702 return Status;
2703 }
2704 if ((Info->HorizontalResolution == Mode->HorizontalResolution) &&
2705 (Info->VerticalResolution == Mode->VerticalResolution)) {
2706 //
2707 // If GOP device supports one mode in current mode buffer,
2708 // it will be added into matched mode buffer
2709 //
2710 Match = TRUE;
2711 FreePool (Info);
2712 break;
2713 }
2714 FreePool (Info);
2715 }
2716
2717 if (Match) {
2718 AlreadyExist = FALSE;
2719
2720 //
2721 // Check if GOP mode has been in the mode buffer, ModeBuffer = MatchedMode at begin.
2722 //
2723 for (Info = ModeBuffer; Info < MatchedMode; Info++) {
2724 if ((Info->HorizontalResolution == Mode->HorizontalResolution) &&
2725 (Info->VerticalResolution == Mode->VerticalResolution)) {
2726 AlreadyExist = TRUE;
2727 break;
2728 }
2729 }
2730
2731 if (!AlreadyExist) {
2732 CopyMem (MatchedMode, Mode, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
2733
2734 //
2735 // Physical frame buffer is no longer available, change PixelFormat to PixelBltOnly
2736 //
2737 MatchedMode->Version = 0;
2738 MatchedMode->PixelFormat = PixelBltOnly;
2739 ZeroMem (&MatchedMode->PixelInformation, sizeof (EFI_PIXEL_BITMASK));
2740
2741 MatchedMode++;
2742 }
2743 }
2744
2745 Mode++;
2746 }
2747
2748 //
2749 // Drop the old mode buffer, assign it to a new one
2750 //
2751 FreePool (Private->GraphicsOutputModeBuffer);
2752 Private->GraphicsOutputModeBuffer = ModeBuffer;
2753
2754 //
2755 // Physical frame buffer is no longer available when there are more than one physical GOP devices
2756 //
2757 CurrentGraphicsOutputMode->MaxMode = (UINT32) (((UINTN) MatchedMode - (UINTN) ModeBuffer) / sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
2758 CurrentGraphicsOutputMode->Info->PixelFormat = PixelBltOnly;
2759 ZeroMem (&CurrentGraphicsOutputMode->Info->PixelInformation, sizeof (EFI_PIXEL_BITMASK));
2760 CurrentGraphicsOutputMode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
2761 CurrentGraphicsOutputMode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) NULL;
2762 CurrentGraphicsOutputMode->FrameBufferSize = 0;
2763 }
2764
2765 //
2766 // Graphics console driver can ensure the same mode for all GOP devices
2767 //
2768 for (Index = 0; Index < CurrentGraphicsOutputMode->MaxMode; Index++) {
2769 Mode = &Private->GraphicsOutputModeBuffer[Index];
2770 if ((Mode->HorizontalResolution == GraphicsOutput->Mode->Info->HorizontalResolution) &&
2771 (Mode->VerticalResolution == GraphicsOutput->Mode->Info->VerticalResolution)) {
2772 CurrentIndex = Index;
2773 break;
2774 }
2775 }
2776 if (Index >= CurrentGraphicsOutputMode->MaxMode) {
2777 //
2778 // if user defined mode is not found, set to default mode 800x600
2779 //
2780 for (Index = 0; Index < CurrentGraphicsOutputMode->MaxMode; Index++) {
2781 Mode = &Private->GraphicsOutputModeBuffer[Index];
2782 if ((Mode->HorizontalResolution == 800) && (Mode->VerticalResolution == 600)) {
2783 CurrentIndex = Index;
2784 break;
2785 }
2786 }
2787 }
2788 } else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
2789 //
2790 // Graphics console driver can ensure the same mode for all GOP devices
2791 // so we can get the current mode from this video device
2792 //
2793 UgaDraw->GetMode (
2794 UgaDraw,
2795 &UgaHorizontalResolution,
2796 &UgaVerticalResolution,
2797 &UgaColorDepth,
2798 &UgaRefreshRate
2799 );
2800
2801 CurrentGraphicsOutputMode->MaxMode = 1;
2802 Info = CurrentGraphicsOutputMode->Info;
2803 Info->Version = 0;
2804 Info->HorizontalResolution = UgaHorizontalResolution;
2805 Info->VerticalResolution = UgaVerticalResolution;
2806 Info->PixelFormat = PixelBltOnly;
2807 Info->PixelsPerScanLine = UgaHorizontalResolution;
2808 CurrentGraphicsOutputMode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
2809 CurrentGraphicsOutputMode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) NULL;
2810 CurrentGraphicsOutputMode->FrameBufferSize = 0;
2811
2812 //
2813 // Update the private mode buffer
2814 //
2815 CopyMem (&Private->GraphicsOutputModeBuffer[0], Info, sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
2816
2817 //
2818 // Only mode 0 is available to be set
2819 //
2820 CurrentIndex = 0;
2821 }
2822
2823 Done:
2824
2825 if (GraphicsOutput != NULL) {
2826 Private->CurrentNumberOfGraphicsOutput++;
2827 }
2828 if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
2829 Private->CurrentNumberOfUgaDraw++;
2830 }
2831
2832 //
2833 // Force GraphicsOutput mode to be set,
2834 // regardless whether the console is in EfiConsoleControlScreenGraphics or EfiConsoleControlScreenText mode
2835 //
2836 Private->HardwareNeedsStarting = TRUE;
2837 //
2838 // Current mode number may need update now, so set it to an invalid mode number
2839 //
2840 CurrentGraphicsOutputMode->Mode = 0xffff;
2841 //
2842 // Graphics console can ensure all GOP devices have the same mode which can be taken as current mode.
2843 //
2844 Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, (UINT32) CurrentIndex);
2845 if (EFI_ERROR(Status)) {
2846 //
2847 // If user defined mode is not valid for display device, set to the default mode 800x600.
2848 //
2849 (Private->GraphicsOutputModeBuffer[0]).HorizontalResolution = 800;
2850 (Private->GraphicsOutputModeBuffer[0]).VerticalResolution = 600;
2851 Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, 0);
2852 }
2853
2854 return Status;
2855 }
2856
2857 /**
2858 Set the current console out mode.
2859
2860 This routine will get the current console mode information (column, row)
2861 from ConsoleOutMode variable and set it; if the variable does not exist,
2862 set to user defined console mode.
2863
2864 @param Private Consplitter Text Out pointer.
2865
2866 **/
2867 VOID
2868 ConsplitterSetConsoleOutMode (
2869 IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private
2870 )
2871 {
2872 UINTN Col;
2873 UINTN Row;
2874 UINTN Mode;
2875 UINTN PreferMode;
2876 UINTN BaseMode;
2877 UINTN MaxMode;
2878 EFI_STATUS Status;
2879 CONSOLE_OUT_MODE ModeInfo;
2880 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;
2881
2882 PreferMode = 0xFF;
2883 BaseMode = 0xFF;
2884 TextOut = &Private->TextOut;
2885 MaxMode = (UINTN) (TextOut->Mode->MaxMode);
2886
2887 ModeInfo.Column = PcdGet32 (PcdConOutColumn);
2888 ModeInfo.Row = PcdGet32 (PcdConOutRow);
2889
2890 //
2891 // To find the prefer mode and basic mode from Text Out mode list
2892 //
2893 for (Mode = 0; Mode < MaxMode; Mode++) {
2894 Status = TextOut->QueryMode (TextOut, Mode, &Col, &Row);
2895 if (!EFI_ERROR(Status)) {
2896 if (Col == ModeInfo.Column && Row == ModeInfo.Row) {
2897 PreferMode = Mode;
2898 }
2899 if (Col == 80 && Row == 25) {
2900 BaseMode = Mode;
2901 }
2902 }
2903 }
2904
2905 //
2906 // Set prefer mode to Text Out devices.
2907 //
2908 Status = TextOut->SetMode (TextOut, PreferMode);
2909 if (EFI_ERROR(Status)) {
2910 //
2911 // if current mode setting is failed, default 80x25 mode will be set.
2912 //
2913 Status = TextOut->SetMode (TextOut, BaseMode);
2914 ASSERT(!EFI_ERROR(Status));
2915
2916 PcdSet32 (PcdConOutColumn, 80);
2917 PcdSet32 (PcdConOutRow, 25);
2918 }
2919
2920 return ;
2921 }
2922
2923
2924 /**
2925 Add Text Output Device in Consplitter Text Output list.
2926
2927 @param Private Text Out Splitter pointer.
2928 @param TextOut Simple Text Output protocol pointer.
2929 @param GraphicsOutput Graphics Output protocol pointer.
2930 @param UgaDraw UGA Draw protocol pointer.
2931
2932 @retval EFI_SUCCESS Text Output Device added successfully.
2933 @retval EFI_OUT_OF_RESOURCES Could not grow the buffer size.
2934
2935 **/
2936 EFI_STATUS
2937 ConSplitterTextOutAddDevice (
2938 IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
2939 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut,
2940 IN EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput,
2941 IN EFI_UGA_DRAW_PROTOCOL *UgaDraw
2942 )
2943 {
2944 EFI_STATUS Status;
2945 UINTN CurrentNumOfConsoles;
2946 INT32 MaxMode;
2947 UINT32 UgaHorizontalResolution;
2948 UINT32 UgaVerticalResolution;
2949 UINT32 UgaColorDepth;
2950 UINT32 UgaRefreshRate;
2951 TEXT_OUT_AND_GOP_DATA *TextAndGop;
2952 UINTN SizeOfInfo;
2953 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
2954 EFI_STATUS DeviceStatus;
2955
2956 Status = EFI_SUCCESS;
2957 CurrentNumOfConsoles = Private->CurrentNumberOfConsoles;
2958
2959 //
2960 // If the Text Out List is full, enlarge it by calling ConSplitterGrowBuffer().
2961 //
2962 while (CurrentNumOfConsoles >= Private->TextOutListCount) {
2963 Status = ConSplitterGrowBuffer (
2964 sizeof (TEXT_OUT_AND_GOP_DATA),
2965 &Private->TextOutListCount,
2966 (VOID **) &Private->TextOutList
2967 );
2968 if (EFI_ERROR (Status)) {
2969 return EFI_OUT_OF_RESOURCES;
2970 }
2971 //
2972 // Also need to reallocate the TextOutModeMap table
2973 //
2974 Status = ConSplitterGrowMapTable (Private);
2975 if (EFI_ERROR (Status)) {
2976 return EFI_OUT_OF_RESOURCES;
2977 }
2978 }
2979
2980 TextAndGop = &Private->TextOutList[CurrentNumOfConsoles];
2981
2982 TextAndGop->TextOut = TextOut;
2983 TextAndGop->GraphicsOutput = GraphicsOutput;
2984 TextAndGop->UgaDraw = UgaDraw;
2985
2986 if (CurrentNumOfConsoles == 0) {
2987 //
2988 // Add the first device's output mode to console splitter's mode list
2989 //
2990 Status = ConSplitterAddOutputMode (Private, TextOut);
2991 } else {
2992 ConSplitterSyncOutputMode (Private, TextOut);
2993 }
2994
2995 Private->CurrentNumberOfConsoles++;
2996
2997 //
2998 // Scan both TextOutList, for the intersection TextOut device
2999 // maybe both ConOut and StdErr incorporate the same Text Out
3000 // device in them, thus the output of both should be synced.
3001 //
3002 ConSplitterGetIntersectionBetweenConOutAndStrErr ();
3003
3004 MaxMode = Private->TextOutMode.MaxMode;
3005 ASSERT (MaxMode >= 1);
3006
3007 DeviceStatus = EFI_DEVICE_ERROR;
3008 if (FeaturePcdGet (PcdConOutGopSupport)) {
3009 //
3010 // If GOP is produced by Consplitter, this device display mode will be added into Graphics Ouput modes.
3011 //
3012 if ((GraphicsOutput != NULL) || (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport))) {
3013 DeviceStatus = ConSplitterAddGraphicsOutputMode (Private, GraphicsOutput, UgaDraw);
3014 }
3015 }
3016
3017 if (FeaturePcdGet (PcdConOutUgaSupport)) {
3018
3019 Status = EFI_DEVICE_ERROR;
3020 //
3021 // If UGA is produced by Consplitter
3022 //
3023 if (GraphicsOutput != NULL) {
3024 Status = GraphicsOutput->QueryMode (GraphicsOutput, GraphicsOutput->Mode->Mode, &SizeOfInfo, &Info);
3025 if (EFI_ERROR (Status)) {
3026 return Status;
3027 }
3028 ASSERT ( SizeOfInfo <= sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
3029
3030 UgaHorizontalResolution = Info->HorizontalResolution;
3031 UgaVerticalResolution = Info->VerticalResolution;
3032
3033 FreePool (Info);
3034
3035 } else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
3036 Status = UgaDraw->GetMode (
3037 UgaDraw,
3038 &UgaHorizontalResolution,
3039 &UgaVerticalResolution,
3040 &UgaColorDepth,
3041 &UgaRefreshRate
3042 );
3043 if (!EFI_ERROR (Status) && EFI_ERROR (DeviceStatus)) {
3044 //
3045 // if GetMode is successfully and UGA device hasn't been set, set it
3046 //
3047 Status = ConSplitterUgaDrawSetMode (
3048 &Private->UgaDraw,
3049 UgaHorizontalResolution,
3050 UgaVerticalResolution,
3051 UgaColorDepth,
3052 UgaRefreshRate
3053 );
3054 }
3055 //
3056 // If GetMode/SetMode is failed, set to 800x600 mode
3057 //
3058 if(EFI_ERROR (Status)) {
3059 Status = ConSplitterUgaDrawSetMode (
3060 &Private->UgaDraw,
3061 800,
3062 600,
3063 32,
3064 60
3065 );
3066 }
3067 }
3068 }
3069
3070 //
3071 // If ConOut, then set the mode to Mode #0 which us 80 x 25
3072 //
3073 Private->TextOut.SetMode (&Private->TextOut, 0);
3074
3075 //
3076 // After adding new console device, all existing console devices should be
3077 // synced to the current shared mode.
3078 //
3079 ConsplitterSetConsoleOutMode (Private);
3080
3081 return Status;
3082 }
3083
3084
3085 /**
3086 Remove Text Out Device in Consplitter Text Out list.
3087
3088 @param Private Text Out Splitter pointer.
3089 @param TextOut Simple Text Output Pointer protocol pointer.
3090
3091 @retval EFI_SUCCESS Text Out Device removed successfully.
3092 @retval EFI_NOT_FOUND No Text Out Device found.
3093
3094 **/
3095 EFI_STATUS
3096 ConSplitterTextOutDeleteDevice (
3097 IN TEXT_OUT_SPLITTER_PRIVATE_DATA *Private,
3098 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut
3099 )
3100 {
3101 INT32 Index;
3102 UINTN CurrentNumOfConsoles;
3103 TEXT_OUT_AND_GOP_DATA *TextOutList;
3104 EFI_STATUS Status;
3105
3106 //
3107 // Remove the specified text-out device data structure from the Text out List,
3108 // and rearrange the remaining data structures in the Text out List.
3109 //
3110 CurrentNumOfConsoles = Private->CurrentNumberOfConsoles;
3111 Index = (INT32) CurrentNumOfConsoles - 1;
3112 TextOutList = Private->TextOutList;
3113 while (Index >= 0) {
3114 if (TextOutList->TextOut == TextOut) {
3115 CopyMem (TextOutList, TextOutList + 1, sizeof (TEXT_OUT_AND_GOP_DATA) * Index);
3116 CurrentNumOfConsoles--;
3117 if (TextOutList->UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
3118 Private->CurrentNumberOfUgaDraw--;
3119 }
3120 if (TextOutList->GraphicsOutput != NULL) {
3121 Private->CurrentNumberOfGraphicsOutput--;
3122 }
3123 break;
3124 }
3125
3126 Index--;
3127 TextOutList++;
3128 }
3129 //
3130 // The specified TextOut is not managed by the ConSplitter driver
3131 //
3132 if (Index < 0) {
3133 return EFI_NOT_FOUND;
3134 }
3135
3136 if (CurrentNumOfConsoles == 0) {
3137 //
3138 // If the number of consoles is zero, reset all parameters
3139 //
3140 Private->CurrentNumberOfConsoles = 0;
3141 Private->TextOutMode.MaxMode = 1;
3142 Private->TextOutQueryData[0].Columns = 80;
3143 Private->TextOutQueryData[0].Rows = 25;
3144 TextOutSetMode (Private, 0);
3145
3146 return EFI_SUCCESS;
3147 }
3148 //
3149 // Max Mode is realy an intersection of the QueryMode command to all
3150 // devices. So we must copy the QueryMode of the first device to
3151 // QueryData.
3152 //
3153 ZeroMem (
3154 Private->TextOutQueryData,
3155 Private->TextOutQueryDataCount * sizeof (TEXT_OUT_SPLITTER_QUERY_DATA)
3156 );
3157
3158 FreePool (Private->TextOutModeMap);
3159 Private->TextOutModeMap = NULL;
3160 TextOutList = Private->TextOutList;
3161
3162 //
3163 // Add the first TextOut to the QueryData array and ModeMap table
3164 //
3165 Status = ConSplitterAddOutputMode (Private, TextOutList->TextOut);
3166
3167 //
3168 // Now add one by one
3169 //
3170 Index = 1;
3171 Private->CurrentNumberOfConsoles = 1;
3172 TextOutList++;
3173 while ((UINTN) Index < CurrentNumOfConsoles) {
3174 ConSplitterSyncOutputMode (Private, TextOutList->TextOut);
3175 Index++;
3176 Private->CurrentNumberOfConsoles++;
3177 TextOutList++;
3178 }
3179
3180 ConSplitterGetIntersectionBetweenConOutAndStrErr ();
3181
3182 return Status;
3183 }
3184
3185
3186 /**
3187 Reset the input device and optionaly run diagnostics
3188
3189 @param This Protocol instance pointer.
3190 @param ExtendedVerification Driver may perform diagnostics on reset.
3191
3192 @retval EFI_SUCCESS The device was reset.
3193 @retval EFI_DEVICE_ERROR The device is not functioning properly and could
3194 not be reset.
3195
3196 **/
3197 EFI_STATUS
3198 EFIAPI
3199 ConSplitterTextInReset (
3200 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
3201 IN BOOLEAN ExtendedVerification
3202 )
3203 {
3204 EFI_STATUS Status;
3205 EFI_STATUS ReturnStatus;
3206 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3207 UINTN Index;
3208
3209 Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
3210
3211 Private->KeyEventSignalState = FALSE;
3212
3213 //
3214 // return the worst status met
3215 //
3216 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
3217 Status = Private->TextInList[Index]->Reset (
3218 Private->TextInList[Index],
3219 ExtendedVerification
3220 );
3221 if (EFI_ERROR (Status)) {
3222 ReturnStatus = Status;
3223 }
3224 }
3225
3226 return ReturnStatus;
3227 }
3228
3229
3230 /**
3231 Reads the next keystroke from the input device. The WaitForKey Event can
3232 be used to test for existance of a keystroke via WaitForEvent () call.
3233
3234 @param Private Protocol instance pointer.
3235 @param Key Driver may perform diagnostics on reset.
3236
3237 @retval EFI_SUCCESS The keystroke information was returned.
3238 @retval EFI_NOT_READY There was no keystroke data availiable.
3239 @retval EFI_DEVICE_ERROR The keydtroke information was not returned due
3240 to hardware errors.
3241
3242 **/
3243 EFI_STATUS
3244 EFIAPI
3245 ConSplitterTextInPrivateReadKeyStroke (
3246 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
3247 OUT EFI_INPUT_KEY *Key
3248 )
3249 {
3250 EFI_STATUS Status;
3251 UINTN Index;
3252 EFI_INPUT_KEY CurrentKey;
3253
3254 Key->UnicodeChar = 0;
3255 Key->ScanCode = SCAN_NULL;
3256
3257 //
3258 // if no physical console input device exists, return EFI_NOT_READY;
3259 // if any physical console input device has key input,
3260 // return the key and EFI_SUCCESS.
3261 //
3262 for (Index = 0; Index < Private->CurrentNumberOfConsoles; Index++) {
3263 Status = Private->TextInList[Index]->ReadKeyStroke (
3264 Private->TextInList[Index],
3265 &CurrentKey
3266 );
3267 if (!EFI_ERROR (Status)) {
3268 *Key = CurrentKey;
3269 return Status;
3270 }
3271 }
3272
3273 return EFI_NOT_READY;
3274 }
3275
3276
3277 /**
3278 Reads the next keystroke from the input device. The WaitForKey Event can
3279 be used to test for existance of a keystroke via WaitForEvent () call.
3280
3281 @param This Protocol instance pointer.
3282 @param Key Driver may perform diagnostics on reset.
3283
3284 @retval EFI_SUCCESS The keystroke information was returned.
3285 @retval EFI_NOT_READY There was no keystroke data availiable.
3286 @retval EFI_DEVICE_ERROR The keydtroke information was not returned due
3287 to hardware errors.
3288
3289 **/
3290 EFI_STATUS
3291 EFIAPI
3292 ConSplitterTextInReadKeyStroke (
3293 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
3294 OUT EFI_INPUT_KEY *Key
3295 )
3296 {
3297 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3298
3299 Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
3300
3301 Private->KeyEventSignalState = FALSE;
3302
3303 return ConSplitterTextInPrivateReadKeyStroke (Private, Key);
3304 }
3305
3306
3307 /**
3308 This event aggregates all the events of the ConIn devices in the spliter.
3309
3310 If any events of physical ConIn devices are signaled, signal the ConIn
3311 spliter event. This will cause the calling code to call
3312 ConSplitterTextInReadKeyStroke ().
3313
3314 @param Event The Event assoicated with callback.
3315 @param Context Context registered when Event was created.
3316
3317 **/
3318 VOID
3319 EFIAPI
3320 ConSplitterTextInWaitForKey (
3321 IN EFI_EVENT Event,
3322 IN VOID *Context
3323 )
3324 {
3325 EFI_STATUS Status;
3326 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3327 UINTN Index;
3328
3329 Private = (TEXT_IN_SPLITTER_PRIVATE_DATA *) Context;
3330
3331 if (Private->KeyEventSignalState) {
3332 //
3333 // If KeyEventSignalState is flagged before, and not cleared by Reset() or ReadKeyStroke()
3334 //
3335 gBS->SignalEvent (Event);
3336 return ;
3337 }
3338
3339 //
3340 // If any physical console input device has key input, signal the event.
3341 //
3342 for (Index = 0; Index < Private->CurrentNumberOfConsoles; Index++) {
3343 Status = gBS->CheckEvent (Private->TextInList[Index]->WaitForKey);
3344 if (!EFI_ERROR (Status)) {
3345 gBS->SignalEvent (Event);
3346 Private->KeyEventSignalState = TRUE;
3347 }
3348 }
3349 }
3350
3351
3352
3353 /**
3354 Test if the key has been registered on input device.
3355
3356 @param RegsiteredData A pointer to a buffer that is filled in with the
3357 keystroke state data for the key that was
3358 registered.
3359 @param InputData A pointer to a buffer that is filled in with the
3360 keystroke state data for the key that was
3361 pressed.
3362
3363 @retval TRUE Key be pressed matches a registered key.
3364 @retval FLASE Match failed.
3365
3366 **/
3367 BOOLEAN
3368 IsKeyRegistered (
3369 IN EFI_KEY_DATA *RegsiteredData,
3370 IN EFI_KEY_DATA *InputData
3371 )
3372 {
3373 ASSERT (RegsiteredData != NULL && InputData != NULL);
3374
3375 if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||
3376 (RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {
3377 return FALSE;
3378 }
3379
3380 //
3381 // Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.
3382 //
3383 if (RegsiteredData->KeyState.KeyShiftState != 0 &&
3384 RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState) {
3385 return FALSE;
3386 }
3387 if (RegsiteredData->KeyState.KeyToggleState != 0 &&
3388 RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState) {
3389 return FALSE;
3390 }
3391
3392 return TRUE;
3393
3394 }
3395
3396
3397 /**
3398 Reset the input device and optionaly run diagnostics
3399
3400 @param This Protocol instance pointer.
3401 @param ExtendedVerification Driver may perform diagnostics on reset.
3402
3403 @retval EFI_SUCCESS The device was reset.
3404 @retval EFI_DEVICE_ERROR The device is not functioning properly and could
3405 not be reset.
3406
3407 **/
3408 EFI_STATUS
3409 EFIAPI
3410 ConSplitterTextInResetEx (
3411 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
3412 IN BOOLEAN ExtendedVerification
3413 )
3414 {
3415 EFI_STATUS Status;
3416 EFI_STATUS ReturnStatus;
3417 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3418 UINTN Index;
3419
3420 Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
3421
3422 Private->KeyEventSignalState = FALSE;
3423
3424 //
3425 // return the worst status met
3426 //
3427 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfExConsoles; Index++) {
3428 Status = Private->TextInExList[Index]->Reset (
3429 Private->TextInExList[Index],
3430 ExtendedVerification
3431 );
3432 if (EFI_ERROR (Status)) {
3433 ReturnStatus = Status;
3434 }
3435 }
3436
3437 return ReturnStatus;
3438
3439 }
3440
3441
3442 /**
3443 Reads the next keystroke from the input device. The WaitForKey Event can
3444 be used to test for existance of a keystroke via WaitForEvent () call.
3445
3446 @param This Protocol instance pointer.
3447 @param KeyData A pointer to a buffer that is filled in with the
3448 keystroke state data for the key that was
3449 pressed.
3450
3451 @retval EFI_SUCCESS The keystroke information was returned.
3452 @retval EFI_NOT_READY There was no keystroke data availiable.
3453 @retval EFI_DEVICE_ERROR The keystroke information was not returned due
3454 to hardware errors.
3455 @retval EFI_INVALID_PARAMETER KeyData is NULL.
3456
3457 **/
3458 EFI_STATUS
3459 EFIAPI
3460 ConSplitterTextInReadKeyStrokeEx (
3461 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
3462 OUT EFI_KEY_DATA *KeyData
3463 )
3464 {
3465 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3466 EFI_STATUS Status;
3467 UINTN Index;
3468 EFI_KEY_DATA CurrentKeyData;
3469
3470
3471 if (KeyData == NULL) {
3472 return EFI_INVALID_PARAMETER;
3473 }
3474
3475 Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
3476
3477 Private->KeyEventSignalState = FALSE;
3478
3479 KeyData->Key.UnicodeChar = 0;
3480 KeyData->Key.ScanCode = SCAN_NULL;
3481
3482 //
3483 // if no physical console input device exists, return EFI_NOT_READY;
3484 // if any physical console input device has key input,
3485 // return the key and EFI_SUCCESS.
3486 //
3487 for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
3488 Status = Private->TextInExList[Index]->ReadKeyStrokeEx (
3489 Private->TextInExList[Index],
3490 &CurrentKeyData
3491 );
3492 if (!EFI_ERROR (Status)) {
3493 CopyMem (KeyData, &CurrentKeyData, sizeof (CurrentKeyData));
3494 return Status;
3495 }
3496 }
3497
3498 return EFI_NOT_READY;
3499 }
3500
3501
3502 /**
3503 Set certain state for the input device.
3504
3505 @param This Protocol instance pointer.
3506 @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
3507 state for the input device.
3508
3509 @retval EFI_SUCCESS The device state was set successfully.
3510 @retval EFI_DEVICE_ERROR The device is not functioning correctly and
3511 could not have the setting adjusted.
3512 @retval EFI_UNSUPPORTED The device does not have the ability to set its
3513 state.
3514 @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
3515
3516 **/
3517 EFI_STATUS
3518 EFIAPI
3519 ConSplitterTextInSetState (
3520 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
3521 IN EFI_KEY_TOGGLE_STATE *KeyToggleState
3522 )
3523 {
3524 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3525 EFI_STATUS Status;
3526 UINTN Index;
3527
3528 if (KeyToggleState == NULL) {
3529 return EFI_INVALID_PARAMETER;
3530 }
3531
3532 Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
3533
3534 //
3535 // if no physical console input device exists, return EFI_SUCCESS;
3536 // otherwise return the status of setting state of physical console input device
3537 //
3538 for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
3539 Status = Private->TextInExList[Index]->SetState (
3540 Private->TextInExList[Index],
3541 KeyToggleState
3542 );
3543 if (EFI_ERROR (Status)) {
3544 return Status;
3545 }
3546 }
3547
3548 return EFI_SUCCESS;
3549
3550 }
3551
3552
3553 /**
3554 Register a notification function for a particular keystroke for the input device.
3555
3556 @param This Protocol instance pointer.
3557 @param KeyData A pointer to a buffer that is filled in with the
3558 keystroke information data for the key that was
3559 pressed.
3560 @param KeyNotificationFunction Points to the function to be called when the key
3561 sequence is typed specified by KeyData.
3562 @param NotifyHandle Points to the unique handle assigned to the
3563 registered notification.
3564
3565 @retval EFI_SUCCESS The notification function was registered
3566 successfully.
3567 @retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data
3568 structures.
3569 @retval EFI_INVALID_PARAMETER KeyData or KeyNotificationFunction or NotifyHandle is NULL.
3570
3571 **/
3572 EFI_STATUS
3573 EFIAPI
3574 ConSplitterTextInRegisterKeyNotify (
3575 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
3576 IN EFI_KEY_DATA *KeyData,
3577 IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
3578 OUT EFI_HANDLE *NotifyHandle
3579 )
3580 {
3581 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3582 EFI_STATUS Status;
3583 UINTN Index;
3584 TEXT_IN_EX_SPLITTER_NOTIFY *NewNotify;
3585 LIST_ENTRY *Link;
3586 TEXT_IN_EX_SPLITTER_NOTIFY *CurrentNotify;
3587
3588
3589 if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {
3590 return EFI_INVALID_PARAMETER;
3591 }
3592
3593 Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
3594
3595 //
3596 // If no physical console input device exists,
3597 // return EFI_SUCCESS directly.
3598 //
3599 if (Private->CurrentNumberOfExConsoles <= 0) {
3600 return EFI_SUCCESS;
3601 }
3602
3603 //
3604 // Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.
3605 //
3606 for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
3607 CurrentNotify = TEXT_IN_EX_SPLITTER_NOTIFY_FROM_THIS (Link);
3608 if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
3609 if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {
3610 *NotifyHandle = CurrentNotify->NotifyHandle;
3611 return EFI_SUCCESS;
3612 }
3613 }
3614 }
3615
3616 //
3617 // Allocate resource to save the notification function
3618 //
3619 NewNotify = (TEXT_IN_EX_SPLITTER_NOTIFY *) AllocateZeroPool (sizeof (TEXT_IN_EX_SPLITTER_NOTIFY));
3620 if (NewNotify == NULL) {
3621 return EFI_OUT_OF_RESOURCES;
3622 }
3623 NewNotify->NotifyHandleList = (EFI_HANDLE *) AllocateZeroPool (sizeof (EFI_HANDLE) * Private->CurrentNumberOfExConsoles);
3624 if (NewNotify->NotifyHandleList == NULL) {
3625 gBS->FreePool (NewNotify);
3626 return EFI_OUT_OF_RESOURCES;
3627 }
3628 NewNotify->Signature = TEXT_IN_EX_SPLITTER_NOTIFY_SIGNATURE;
3629 NewNotify->KeyNotificationFn = KeyNotificationFunction;
3630 NewNotify->NotifyHandle = (EFI_HANDLE) NewNotify;
3631 CopyMem (&NewNotify->KeyData, KeyData, sizeof (KeyData));
3632
3633 //
3634 // Return the wrong status of registering key notify of
3635 // physical console input device if meet problems
3636 //
3637 for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
3638 Status = Private->TextInExList[Index]->RegisterKeyNotify (
3639 Private->TextInExList[Index],
3640 KeyData,
3641 KeyNotificationFunction,
3642 &NewNotify->NotifyHandleList[Index]
3643 );
3644 if (EFI_ERROR (Status)) {
3645 gBS->FreePool (NewNotify->NotifyHandleList);
3646 gBS->FreePool (NewNotify);
3647 return Status;
3648 }
3649 }
3650
3651 InsertTailList (&mConIn.NotifyList, &NewNotify->NotifyEntry);
3652
3653 *NotifyHandle = NewNotify->NotifyHandle;
3654
3655 return EFI_SUCCESS;
3656
3657 }
3658
3659
3660 /**
3661 Remove a registered notification function from a particular keystroke.
3662
3663 @param This Protocol instance pointer.
3664 @param NotificationHandle The handle of the notification function being
3665 unregistered.
3666
3667 @retval EFI_SUCCESS The notification function was unregistered
3668 successfully.
3669 @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.
3670
3671 **/
3672 EFI_STATUS
3673 EFIAPI
3674 ConSplitterTextInUnregisterKeyNotify (
3675 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
3676 IN EFI_HANDLE NotificationHandle
3677 )
3678 {
3679 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3680 EFI_STATUS Status;
3681 UINTN Index;
3682 TEXT_IN_EX_SPLITTER_NOTIFY *CurrentNotify;
3683 LIST_ENTRY *Link;
3684
3685 if (NotificationHandle == NULL) {
3686 return EFI_INVALID_PARAMETER;
3687 }
3688
3689 if (((TEXT_IN_EX_SPLITTER_NOTIFY *) NotificationHandle)->Signature != TEXT_IN_EX_SPLITTER_NOTIFY_SIGNATURE) {
3690 return EFI_INVALID_PARAMETER;
3691 }
3692
3693 Private = TEXT_IN_EX_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
3694
3695 //
3696 // if no physical console input device exists,
3697 // return EFI_SUCCESS directly.
3698 //
3699 if (Private->CurrentNumberOfExConsoles <= 0) {
3700 return EFI_SUCCESS;
3701 }
3702
3703 for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
3704 CurrentNotify = TEXT_IN_EX_SPLITTER_NOTIFY_FROM_THIS (Link);
3705 if (CurrentNotify->NotifyHandle == NotificationHandle) {
3706 for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {
3707 Status = Private->TextInExList[Index]->UnregisterKeyNotify (
3708 Private->TextInExList[Index],
3709 CurrentNotify->NotifyHandleList[Index]
3710 );
3711 if (EFI_ERROR (Status)) {
3712 return Status;
3713 }
3714 }
3715 RemoveEntryList (&CurrentNotify->NotifyEntry);
3716
3717 gBS->FreePool (CurrentNotify->NotifyHandleList);
3718 gBS->FreePool (CurrentNotify);
3719 return EFI_SUCCESS;
3720 }
3721 }
3722
3723 //
3724 // NotificationHandle is not found in database
3725 //
3726 return EFI_INVALID_PARAMETER;
3727 }
3728
3729
3730 /**
3731 Reset the input device and optionaly run diagnostics
3732
3733 @param This Protocol instance pointer.
3734 @param ExtendedVerification Driver may perform diagnostics on reset.
3735
3736 @retval EFI_SUCCESS The device was reset.
3737 @retval EFI_DEVICE_ERROR The device is not functioning properly and could
3738 not be reset.
3739
3740 **/
3741 EFI_STATUS
3742 EFIAPI
3743 ConSplitterSimplePointerReset (
3744 IN EFI_SIMPLE_POINTER_PROTOCOL *This,
3745 IN BOOLEAN ExtendedVerification
3746 )
3747 {
3748 EFI_STATUS Status;
3749 EFI_STATUS ReturnStatus;
3750 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3751 UINTN Index;
3752
3753 Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_SIMPLE_POINTER_THIS (This);
3754
3755 Private->InputEventSignalState = FALSE;
3756
3757 if (Private->CurrentNumberOfPointers == 0) {
3758 return EFI_SUCCESS;
3759 }
3760 //
3761 // return the worst status met
3762 //
3763 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfPointers; Index++) {
3764 Status = Private->PointerList[Index]->Reset (
3765 Private->PointerList[Index],
3766 ExtendedVerification
3767 );
3768 if (EFI_ERROR (Status)) {
3769 ReturnStatus = Status;
3770 }
3771 }
3772
3773 return ReturnStatus;
3774 }
3775
3776
3777 /**
3778 Reads the next keystroke from the input device. The WaitForKey Event can
3779 be used to test for existance of a keystroke via WaitForEvent () call.
3780
3781 @param Private Protocol instance pointer.
3782 @param State The state information of simple pointer device.
3783
3784 @retval EFI_SUCCESS The keystroke information was returned.
3785 @retval EFI_NOT_READY There was no keystroke data availiable.
3786 @retval EFI_DEVICE_ERROR The keydtroke information was not returned due
3787 to hardware errors.
3788
3789 **/
3790 EFI_STATUS
3791 EFIAPI
3792 ConSplitterSimplePointerPrivateGetState (
3793 IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,
3794 IN OUT EFI_SIMPLE_POINTER_STATE *State
3795 )
3796 {
3797 EFI_STATUS Status;
3798 EFI_STATUS ReturnStatus;
3799 UINTN Index;
3800 EFI_SIMPLE_POINTER_STATE CurrentState;
3801
3802 State->RelativeMovementX = 0;
3803 State->RelativeMovementY = 0;
3804 State->RelativeMovementZ = 0;
3805 State->LeftButton = FALSE;
3806 State->RightButton = FALSE;
3807
3808 //
3809 // if no physical console input device exists, return EFI_NOT_READY;
3810 // if any physical console input device has key input,
3811 // return the key and EFI_SUCCESS.
3812 //
3813 ReturnStatus = EFI_NOT_READY;
3814 for (Index = 0; Index < Private->CurrentNumberOfPointers; Index++) {
3815
3816 Status = Private->PointerList[Index]->GetState (
3817 Private->PointerList[Index],
3818 &CurrentState
3819 );
3820 if (!EFI_ERROR (Status)) {
3821 if (ReturnStatus == EFI_NOT_READY) {
3822 ReturnStatus = EFI_SUCCESS;
3823 }
3824
3825 if (CurrentState.LeftButton) {
3826 State->LeftButton = TRUE;
3827 }
3828
3829 if (CurrentState.RightButton) {
3830 State->RightButton = TRUE;
3831 }
3832
3833 if (CurrentState.RelativeMovementX != 0 && Private->PointerList[Index]->Mode->ResolutionX != 0) {
3834 State->RelativeMovementX += (CurrentState.RelativeMovementX * (INT32) Private->SimplePointerMode.ResolutionX) / (INT32) Private->PointerList[Index]->Mode->ResolutionX;
3835 }
3836
3837 if (CurrentState.RelativeMovementY != 0 && Private->PointerList[Index]->Mode->ResolutionY != 0) {
3838 State->RelativeMovementY += (CurrentState.RelativeMovementY * (INT32) Private->SimplePointerMode.ResolutionY) / (INT32) Private->PointerList[Index]->Mode->ResolutionY;
3839 }
3840
3841 if (CurrentState.RelativeMovementZ != 0 && Private->PointerList[Index]->Mode->ResolutionZ != 0) {
3842 State->RelativeMovementZ += (CurrentState.RelativeMovementZ * (INT32) Private->SimplePointerMode.ResolutionZ) / (INT32) Private->PointerList[Index]->Mode->ResolutionZ;
3843 }
3844 } else if (Status == EFI_DEVICE_ERROR) {
3845 ReturnStatus = EFI_DEVICE_ERROR;
3846 }
3847 }
3848
3849 return ReturnStatus;
3850 }
3851
3852
3853 /**
3854 Reads the next keystroke from the input device. The WaitForKey Event can
3855 be used to test for existance of a keystroke via WaitForEvent () call.
3856
3857 @param This A pointer to protocol instance.
3858 @param State A pointer to state information on the pointer device
3859
3860 @retval EFI_SUCCESS The keystroke information was returned in State.
3861 @retval EFI_NOT_READY There was no keystroke data availiable.
3862 @retval EFI_DEVICE_ERROR The keydtroke information was not returned due
3863 to hardware errors.
3864
3865 **/
3866 EFI_STATUS
3867 EFIAPI
3868 ConSplitterSimplePointerGetState (
3869 IN EFI_SIMPLE_POINTER_PROTOCOL *This,
3870 IN OUT EFI_SIMPLE_POINTER_STATE *State
3871 )
3872 {
3873 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3874
3875 Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_SIMPLE_POINTER_THIS (This);
3876
3877 Private->InputEventSignalState = FALSE;
3878
3879 return ConSplitterSimplePointerPrivateGetState (Private, State);
3880 }
3881
3882
3883 /**
3884 This event agregates all the events of the ConIn devices in the spliter.
3885 If any events of physical ConIn devices are signaled, signal the ConIn
3886 spliter event. This will cause the calling code to call
3887 ConSplitterTextInReadKeyStroke ().
3888
3889 @param Event The Event assoicated with callback.
3890 @param Context Context registered when Event was created.
3891
3892 **/
3893 VOID
3894 EFIAPI
3895 ConSplitterSimplePointerWaitForInput (
3896 IN EFI_EVENT Event,
3897 IN VOID *Context
3898 )
3899 {
3900 EFI_STATUS Status;
3901 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3902 UINTN Index;
3903
3904 Private = (TEXT_IN_SPLITTER_PRIVATE_DATA *) Context;
3905
3906 //
3907 // if InputEventSignalState is flagged before, and not cleared by Reset() or ReadKeyStroke()
3908 //
3909 if (Private->InputEventSignalState) {
3910 gBS->SignalEvent (Event);
3911 return ;
3912 }
3913 //
3914 // if any physical console input device has key input, signal the event.
3915 //
3916 for (Index = 0; Index < Private->CurrentNumberOfPointers; Index++) {
3917 Status = gBS->CheckEvent (Private->PointerList[Index]->WaitForInput);
3918 if (!EFI_ERROR (Status)) {
3919 gBS->SignalEvent (Event);
3920 Private->InputEventSignalState = TRUE;
3921 }
3922 }
3923 }
3924
3925 /**
3926 Resets the pointer device hardware.
3927
3928 @param This Protocol instance pointer.
3929 @param ExtendedVerification Driver may perform diagnostics on reset.
3930
3931 @retval EFI_SUCCESS The device was reset.
3932 @retval EFI_DEVICE_ERROR The device is not functioning correctly and
3933 could not be reset.
3934
3935 **/
3936 EFI_STATUS
3937 EFIAPI
3938 ConSplitterAbsolutePointerReset (
3939 IN EFI_ABSOLUTE_POINTER_PROTOCOL *This,
3940 IN BOOLEAN ExtendedVerification
3941 )
3942 {
3943 EFI_STATUS Status;
3944 EFI_STATUS ReturnStatus;
3945 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3946 UINTN Index;
3947
3948 Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_ABSOLUTE_POINTER_THIS (This);
3949
3950 Private->AbsoluteInputEventSignalState = FALSE;
3951
3952 if (Private->CurrentNumberOfAbsolutePointers == 0) {
3953 return EFI_SUCCESS;
3954 }
3955 //
3956 // return the worst status met
3957 //
3958 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfAbsolutePointers; Index++) {
3959 Status = Private->AbsolutePointerList[Index]->Reset (
3960 Private->AbsolutePointerList[Index],
3961 ExtendedVerification
3962 );
3963 if (EFI_ERROR (Status)) {
3964 ReturnStatus = Status;
3965 }
3966 }
3967
3968 return ReturnStatus;
3969 }
3970
3971
3972 /**
3973 Retrieves the current state of a pointer device.
3974
3975 @param This Protocol instance pointer.
3976 @param State A pointer to the state information on the
3977 pointer device.
3978
3979 @retval EFI_SUCCESS The state of the pointer device was returned in
3980 State..
3981 @retval EFI_NOT_READY The state of the pointer device has not changed
3982 since the last call to GetState().
3983 @retval EFI_DEVICE_ERROR A device error occurred while attempting to
3984 retrieve the pointer device's current state.
3985
3986 **/
3987 EFI_STATUS
3988 EFIAPI
3989 ConSplitterAbsolutePointerGetState (
3990 IN EFI_ABSOLUTE_POINTER_PROTOCOL *This,
3991 IN OUT EFI_ABSOLUTE_POINTER_STATE *State
3992 )
3993 {
3994 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
3995 EFI_STATUS Status;
3996 EFI_STATUS ReturnStatus;
3997 UINTN Index;
3998 EFI_ABSOLUTE_POINTER_STATE CurrentState;
3999
4000
4001 Private = TEXT_IN_SPLITTER_PRIVATE_DATA_FROM_ABSOLUTE_POINTER_THIS (This);
4002
4003 Private->AbsoluteInputEventSignalState = FALSE;
4004
4005 State->CurrentX = 0;
4006 State->CurrentY = 0;
4007 State->CurrentZ = 0;
4008 State->ActiveButtons = 0;
4009
4010 //
4011 // if no physical pointer device exists, return EFI_NOT_READY;
4012 // if any physical pointer device has changed state,
4013 // return the state and EFI_SUCCESS.
4014 //
4015 ReturnStatus = EFI_NOT_READY;
4016 for (Index = 0; Index < Private->CurrentNumberOfAbsolutePointers; Index++) {
4017
4018 Status = Private->AbsolutePointerList[Index]->GetState (
4019 Private->AbsolutePointerList[Index],
4020 &CurrentState
4021 );
4022 if (!EFI_ERROR (Status)) {
4023 if (ReturnStatus == EFI_NOT_READY) {
4024 ReturnStatus = EFI_SUCCESS;
4025 }
4026
4027 State->ActiveButtons = CurrentState.ActiveButtons;
4028
4029 if (!(Private->AbsolutePointerMode.AbsoluteMinX == 0 && Private->AbsolutePointerMode.AbsoluteMaxX == 0)) {
4030 State->CurrentX = CurrentState.CurrentX;
4031 }
4032 if (!(Private->AbsolutePointerMode.AbsoluteMinY == 0 && Private->AbsolutePointerMode.AbsoluteMaxY == 0)) {
4033 State->CurrentY = CurrentState.CurrentY;
4034 }
4035 if (!(Private->AbsolutePointerMode.AbsoluteMinZ == 0 && Private->AbsolutePointerMode.AbsoluteMaxZ == 0)) {
4036 State->CurrentZ = CurrentState.CurrentZ;
4037 }
4038
4039 } else if (Status == EFI_DEVICE_ERROR) {
4040 ReturnStatus = EFI_DEVICE_ERROR;
4041 }
4042 }
4043
4044 return ReturnStatus;
4045 }
4046
4047
4048 /**
4049 This event agregates all the events of the pointer devices in the splitter.
4050 If any events of physical pointer devices are signaled, signal the pointer
4051 splitter event. This will cause the calling code to call
4052 ConSplitterAbsolutePointerGetState ().
4053
4054 @param Event The Event assoicated with callback.
4055 @param Context Context registered when Event was created.
4056
4057 **/
4058 VOID
4059 EFIAPI
4060 ConSplitterAbsolutePointerWaitForInput (
4061 IN EFI_EVENT Event,
4062 IN VOID *Context
4063 )
4064 {
4065 EFI_STATUS Status;
4066 TEXT_IN_SPLITTER_PRIVATE_DATA *Private;
4067 UINTN Index;
4068
4069 Private = (TEXT_IN_SPLITTER_PRIVATE_DATA *) Context;
4070
4071 //
4072 // if AbsoluteInputEventSignalState is flagged before,
4073 // and not cleared by Reset() or GetState(), signal it
4074 //
4075 if (Private->AbsoluteInputEventSignalState) {
4076 gBS->SignalEvent (Event);
4077 return ;
4078 }
4079 //
4080 // if any physical console input device has key input, signal the event.
4081 //
4082 for (Index = 0; Index < Private->CurrentNumberOfAbsolutePointers; Index++) {
4083 Status = gBS->CheckEvent (Private->AbsolutePointerList[Index]->WaitForInput);
4084 if (!EFI_ERROR (Status)) {
4085 gBS->SignalEvent (Event);
4086 Private->AbsoluteInputEventSignalState = TRUE;
4087 }
4088 }
4089 }
4090
4091
4092 /**
4093 Reset the text output device hardware and optionaly run diagnostics
4094
4095 @param This Protocol instance pointer.
4096 @param ExtendedVerification Driver may perform more exhaustive verfication
4097 operation of the device during reset.
4098
4099 @retval EFI_SUCCESS The text output device was reset.
4100 @retval EFI_DEVICE_ERROR The text output device is not functioning
4101 correctly and could not be reset.
4102
4103 **/
4104 EFI_STATUS
4105 EFIAPI
4106 ConSplitterTextOutReset (
4107 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
4108 IN BOOLEAN ExtendedVerification
4109 )
4110 {
4111 EFI_STATUS Status;
4112 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4113 UINTN Index;
4114 EFI_STATUS ReturnStatus;
4115
4116 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4117
4118 //
4119 // return the worst status met
4120 //
4121 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
4122 Status = Private->TextOutList[Index].TextOut->Reset (
4123 Private->TextOutList[Index].TextOut,
4124 ExtendedVerification
4125 );
4126 if (EFI_ERROR (Status)) {
4127 ReturnStatus = Status;
4128 }
4129 }
4130
4131 This->SetAttribute (This, EFI_TEXT_ATTR (This->Mode->Attribute & 0x0F, EFI_BLACK));
4132
4133 //
4134 // reset all mode parameters
4135 //
4136 TextOutSetMode (Private, 0);
4137
4138 return ReturnStatus;
4139 }
4140
4141
4142 /**
4143 Write a Unicode string to the output device.
4144
4145 @param This Protocol instance pointer.
4146 @param WString The NULL-terminated Unicode string to be
4147 displayed on the output device(s). All output
4148 devices must also support the Unicode drawing
4149 defined in this file.
4150
4151 @retval EFI_SUCCESS The string was output to the device.
4152 @retval EFI_DEVICE_ERROR The device reported an error while attempting to
4153 output the text.
4154 @retval EFI_UNSUPPORTED The output device's mode is not currently in a
4155 defined text mode.
4156 @retval EFI_WARN_UNKNOWN_GLYPH This warning code indicates that some of the
4157 characters in the Unicode string could not be
4158 rendered and were skipped.
4159
4160 **/
4161 EFI_STATUS
4162 EFIAPI
4163 ConSplitterTextOutOutputString (
4164 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
4165 IN CHAR16 *WString
4166 )
4167 {
4168 EFI_STATUS Status;
4169 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4170 UINTN Index;
4171 UINTN BackSpaceCount;
4172 EFI_STATUS ReturnStatus;
4173 CHAR16 *TargetString;
4174
4175 This->SetAttribute (This, This->Mode->Attribute);
4176
4177 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4178
4179 BackSpaceCount = 0;
4180
4181 for (TargetString = WString; *TargetString != L'\0'; TargetString++) {
4182 if (*TargetString == CHAR_BACKSPACE) {
4183 BackSpaceCount++;
4184 }
4185 }
4186
4187 if (BackSpaceCount == 0) {
4188 TargetString = WString;
4189 } else {
4190 TargetString = AllocatePool (sizeof (CHAR16) * (StrLen (WString) + BackSpaceCount + 1));
4191 ASSERT (TargetString != NULL);
4192
4193 StrCpy (TargetString, WString);
4194 }
4195 //
4196 // return the worst status met
4197 //
4198 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
4199 Status = Private->TextOutList[Index].TextOut->OutputString (
4200 Private->TextOutList[Index].TextOut,
4201 TargetString
4202 );
4203 if (EFI_ERROR (Status)) {
4204 ReturnStatus = Status;
4205 }
4206 }
4207
4208 if (Private->CurrentNumberOfConsoles > 0) {
4209 Private->TextOutMode.CursorColumn = Private->TextOutList[0].TextOut->Mode->CursorColumn;
4210 Private->TextOutMode.CursorRow = Private->TextOutList[0].TextOut->Mode->CursorRow;
4211 }
4212
4213 if (BackSpaceCount > 0) {
4214 FreePool (TargetString);
4215 }
4216
4217 return ReturnStatus;
4218 }
4219
4220
4221 /**
4222 Verifies that all characters in a Unicode string can be output to the
4223 target device.
4224
4225 @param This Protocol instance pointer.
4226 @param WString The NULL-terminated Unicode string to be
4227 examined for the output device(s).
4228
4229 @retval EFI_SUCCESS The device(s) are capable of rendering the
4230 output string.
4231 @retval EFI_UNSUPPORTED Some of the characters in the Unicode string
4232 cannot be rendered by one or more of the output
4233 devices mapped by the EFI handle.
4234
4235 **/
4236 EFI_STATUS
4237 EFIAPI
4238 ConSplitterTextOutTestString (
4239 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
4240 IN CHAR16 *WString
4241 )
4242 {
4243 EFI_STATUS Status;
4244 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4245 UINTN Index;
4246 EFI_STATUS ReturnStatus;
4247
4248 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4249
4250 //
4251 // return the worst status met
4252 //
4253 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
4254 Status = Private->TextOutList[Index].TextOut->TestString (
4255 Private->TextOutList[Index].TextOut,
4256 WString
4257 );
4258 if (EFI_ERROR (Status)) {
4259 ReturnStatus = Status;
4260 }
4261 }
4262 //
4263 // There is no DevNullTextOutTestString () since a Unicode buffer would
4264 // always return EFI_SUCCESS.
4265 // ReturnStatus will be EFI_SUCCESS if no consoles are present
4266 //
4267 return ReturnStatus;
4268 }
4269
4270
4271 /**
4272 Returns information for an available text mode that the output device(s)
4273 supports.
4274
4275 @param This Protocol instance pointer.
4276 @param ModeNumber The mode number to return information on.
4277 @param Columns Returns the columns of the text output device
4278 for the requested ModeNumber.
4279 @param Rows Returns the rows of the text output device
4280 for the requested ModeNumber.
4281
4282 @retval EFI_SUCCESS The requested mode information was returned.
4283 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4284 the request.
4285 @retval EFI_UNSUPPORTED The mode number was not valid.
4286
4287 **/
4288 EFI_STATUS
4289 EFIAPI
4290 ConSplitterTextOutQueryMode (
4291 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
4292 IN UINTN ModeNumber,
4293 OUT UINTN *Columns,
4294 OUT UINTN *Rows
4295 )
4296 {
4297 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4298 UINTN CurrentMode;
4299 INT32 *TextOutModeMap;
4300
4301 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4302
4303 //
4304 // Check whether param ModeNumber is valid.
4305 // ModeNumber should be within range 0 ~ MaxMode - 1.
4306 //
4307 if ( (ModeNumber > (UINTN)(((UINT32)-1)>>1)) ) {
4308 return EFI_UNSUPPORTED;
4309 }
4310
4311 if ((INT32) ModeNumber >= This->Mode->MaxMode) {
4312 return EFI_UNSUPPORTED;
4313 }
4314
4315 //
4316 // We get the available mode from mode intersection map if it's available
4317 //
4318 if (Private->TextOutModeMap != NULL) {
4319 TextOutModeMap = Private->TextOutModeMap + Private->TextOutListCount * ModeNumber;
4320 CurrentMode = (UINTN)(*TextOutModeMap);
4321 *Columns = Private->TextOutQueryData[CurrentMode].Columns;
4322 *Rows = Private->TextOutQueryData[CurrentMode].Rows;
4323 } else {
4324 *Columns = Private->TextOutQueryData[ModeNumber].Columns;
4325 *Rows = Private->TextOutQueryData[ModeNumber].Rows;
4326 }
4327
4328 if (*Columns <= 0 && *Rows <= 0) {
4329 return EFI_UNSUPPORTED;
4330
4331 }
4332
4333 return EFI_SUCCESS;
4334 }
4335
4336
4337 /**
4338 Sets the output device(s) to a specified mode.
4339
4340 @param This Protocol instance pointer.
4341 @param ModeNumber The mode number to set.
4342
4343 @retval EFI_SUCCESS The requested text mode was set.
4344 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4345 the request.
4346 @retval EFI_UNSUPPORTED The mode number was not valid.
4347
4348 **/
4349 EFI_STATUS
4350 EFIAPI
4351 ConSplitterTextOutSetMode (
4352 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
4353 IN UINTN ModeNumber
4354 )
4355 {
4356 EFI_STATUS Status;
4357 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4358 UINTN Index;
4359 INT32 *TextOutModeMap;
4360 EFI_STATUS ReturnStatus;
4361
4362 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4363
4364 //
4365 // Check whether param ModeNumber is valid.
4366 // ModeNumber should be within range 0 ~ MaxMode - 1.
4367 //
4368 if ( (ModeNumber > (UINTN)(((UINT32)-1)>>1)) ) {
4369 return EFI_UNSUPPORTED;
4370 }
4371
4372 if ((INT32) ModeNumber >= This->Mode->MaxMode) {
4373 return EFI_UNSUPPORTED;
4374 }
4375 //
4376 // If the mode is being set to the curent mode, then just clear the screen and return.
4377 //
4378 if (Private->TextOutMode.Mode == (INT32) ModeNumber) {
4379 return ConSplitterTextOutClearScreen (This);
4380 }
4381 //
4382 // return the worst status met
4383 //
4384 TextOutModeMap = Private->TextOutModeMap + Private->TextOutListCount * ModeNumber;
4385 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
4386 Status = Private->TextOutList[Index].TextOut->SetMode (
4387 Private->TextOutList[Index].TextOut,
4388 TextOutModeMap[Index]
4389 );
4390 //
4391 // If this console device is based on a GOP or UGA device, then sync up the bitmap from
4392 // the GOP/UGA splitter and reclear the text portion of the display in the new mode.
4393 //
4394 if ((Private->TextOutList[Index].GraphicsOutput != NULL) || (Private->TextOutList[Index].UgaDraw != NULL)) {
4395 Private->TextOutList[Index].TextOut->ClearScreen (Private->TextOutList[Index].TextOut);
4396 }
4397
4398 if (EFI_ERROR (Status)) {
4399 ReturnStatus = Status;
4400 }
4401 }
4402
4403 //
4404 // Set mode parameter to specified mode number
4405 //
4406 TextOutSetMode (Private, ModeNumber);
4407
4408 return ReturnStatus;
4409 }
4410
4411
4412 /**
4413 Sets the background and foreground colors for the OutputString () and
4414 ClearScreen () functions.
4415
4416 @param This Protocol instance pointer.
4417 @param Attribute The attribute to set. Bits 0..3 are the
4418 foreground color, and bits 4..6 are the
4419 background color. All other bits are undefined
4420 and must be zero. The valid Attributes are
4421 defined in this file.
4422
4423 @retval EFI_SUCCESS The attribute was set.
4424 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4425 the request.
4426 @retval EFI_UNSUPPORTED The attribute requested is not defined.
4427
4428 **/
4429 EFI_STATUS
4430 EFIAPI
4431 ConSplitterTextOutSetAttribute (
4432 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
4433 IN UINTN Attribute
4434 )
4435 {
4436 EFI_STATUS Status;
4437 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4438 UINTN Index;
4439 EFI_STATUS ReturnStatus;
4440
4441 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4442
4443 //
4444 // Check whether param Attribute is valid.
4445 //
4446 if ( (Attribute > (UINTN)(((UINT32)-1)>>1)) ) {
4447 return EFI_UNSUPPORTED;
4448 }
4449
4450 //
4451 // return the worst status met
4452 //
4453 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
4454 Status = Private->TextOutList[Index].TextOut->SetAttribute (
4455 Private->TextOutList[Index].TextOut,
4456 Attribute
4457 );
4458 if (EFI_ERROR (Status)) {
4459 ReturnStatus = Status;
4460 }
4461 }
4462
4463 Private->TextOutMode.Attribute = (INT32) Attribute;
4464
4465 return ReturnStatus;
4466 }
4467
4468
4469 /**
4470 Clears the output device(s) display to the currently selected background
4471 color.
4472
4473 @param This Protocol instance pointer.
4474
4475 @retval EFI_SUCCESS The operation completed successfully.
4476 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4477 the request.
4478 @retval EFI_UNSUPPORTED The output device is not in a valid text mode.
4479
4480 **/
4481 EFI_STATUS
4482 EFIAPI
4483 ConSplitterTextOutClearScreen (
4484 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
4485 )
4486 {
4487 EFI_STATUS Status;
4488 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4489 UINTN Index;
4490 EFI_STATUS ReturnStatus;
4491
4492 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4493
4494 //
4495 // return the worst status met
4496 //
4497 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
4498 Status = Private->TextOutList[Index].TextOut->ClearScreen (Private->TextOutList[Index].TextOut);
4499 if (EFI_ERROR (Status)) {
4500 ReturnStatus = Status;
4501 }
4502 }
4503
4504 //
4505 // No need to do extra check here as whether (Column, Row) is valid has
4506 // been checked in ConSplitterTextOutSetCursorPosition. And (0, 0) should
4507 // always be supported.
4508 //
4509 Private->TextOutMode.CursorColumn = 0;
4510 Private->TextOutMode.CursorRow = 0;
4511 Private->TextOutMode.CursorVisible = TRUE;
4512
4513 return ReturnStatus;
4514 }
4515
4516
4517 /**
4518 Sets the current coordinates of the cursor position
4519
4520 @param This Protocol instance pointer.
4521 @param Column The column position to set the cursor to. Must be
4522 greater than or equal to zero and less than the
4523 number of columns by QueryMode ().
4524 @param Row The row position to set the cursor to. Must be
4525 greater than or equal to zero and less than the
4526 number of rows by QueryMode ().
4527
4528 @retval EFI_SUCCESS The operation completed successfully.
4529 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4530 the request.
4531 @retval EFI_UNSUPPORTED The output device is not in a valid text mode,
4532 or the cursor position is invalid for the
4533 current mode.
4534
4535 **/
4536 EFI_STATUS
4537 EFIAPI
4538 ConSplitterTextOutSetCursorPosition (
4539 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
4540 IN UINTN Column,
4541 IN UINTN Row
4542 )
4543 {
4544 EFI_STATUS Status;
4545 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4546 UINTN Index;
4547 EFI_STATUS ReturnStatus;
4548 UINTN MaxColumn;
4549 UINTN MaxRow;
4550 INT32 *TextOutModeMap;
4551 INT32 ModeNumber;
4552 INT32 CurrentMode;
4553
4554 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4555 TextOutModeMap = NULL;
4556 ModeNumber = Private->TextOutMode.Mode;
4557
4558 //
4559 // Get current MaxColumn and MaxRow from intersection map
4560 //
4561 if (Private->TextOutModeMap != NULL) {
4562 TextOutModeMap = Private->TextOutModeMap + Private->TextOutListCount * ModeNumber;
4563 CurrentMode = *TextOutModeMap;
4564 } else {
4565 CurrentMode = ModeNumber;
4566 }
4567
4568 MaxColumn = Private->TextOutQueryData[CurrentMode].Columns;
4569 MaxRow = Private->TextOutQueryData[CurrentMode].Rows;
4570
4571 if (Column >= MaxColumn || Row >= MaxRow) {
4572 return EFI_UNSUPPORTED;
4573 }
4574 //
4575 // return the worst status met
4576 //
4577 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
4578 Status = Private->TextOutList[Index].TextOut->SetCursorPosition (
4579 Private->TextOutList[Index].TextOut,
4580 Column,
4581 Row
4582 );
4583 if (EFI_ERROR (Status)) {
4584 ReturnStatus = Status;
4585 }
4586 }
4587
4588 //
4589 // No need to do extra check here as whether (Column, Row) is valid has
4590 // been checked in ConSplitterTextOutSetCursorPosition. And (0, 0) should
4591 // always be supported.
4592 //
4593 Private->TextOutMode.CursorColumn = (INT32) Column;
4594 Private->TextOutMode.CursorRow = (INT32) Row;
4595
4596 return ReturnStatus;
4597 }
4598
4599
4600 /**
4601 Makes the cursor visible or invisible
4602
4603 @param This Protocol instance pointer.
4604 @param Visible If TRUE, the cursor is set to be visible. If
4605 FALSE, the cursor is set to be invisible.
4606
4607 @retval EFI_SUCCESS The operation completed successfully.
4608 @retval EFI_DEVICE_ERROR The device had an error and could not complete
4609 the request, or the device does not support
4610 changing the cursor mode.
4611 @retval EFI_UNSUPPORTED The output device is not in a valid text mode.
4612
4613 **/
4614 EFI_STATUS
4615 EFIAPI
4616 ConSplitterTextOutEnableCursor (
4617 IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
4618 IN BOOLEAN Visible
4619 )
4620 {
4621 EFI_STATUS Status;
4622 TEXT_OUT_SPLITTER_PRIVATE_DATA *Private;
4623 UINTN Index;
4624 EFI_STATUS ReturnStatus;
4625
4626 Private = TEXT_OUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);
4627
4628 //
4629 // return the worst status met
4630 //
4631 for (Index = 0, ReturnStatus = EFI_SUCCESS; Index < Private->CurrentNumberOfConsoles; Index++) {
4632 Status = Private->TextOutList[Index].TextOut->EnableCursor (
4633 Private->TextOutList[Index].TextOut,
4634 Visible
4635 );
4636 if (EFI_ERROR (Status)) {
4637 ReturnStatus = Status;
4638 }
4639 }
4640
4641 Private->TextOutMode.CursorVisible = Visible;
4642
4643 return ReturnStatus;
4644 }
4645
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