Fix VS 2005 compatibility issue
[mirror_edk2.git] / EdkNt32Pkg / Dxe / WinNtThunk / Bus / WinNtBusDriver / WinNtBusDriver.c
CommitLineData
878ddf1f 1/*+++\r
2\r
3Copyright (c) 2006, Intel Corporation \r
4All rights reserved. This program and the accompanying materials \r
5are licensed and made available under the terms and conditions of the BSD License \r
6which accompanies this distribution. The full text of the license may be found at \r
7http://opensource.org/licenses/bsd-license.php \r
8 \r
9THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
10WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
11\r
12Module Name:\r
13\r
14 WinNtBusDriver.c\r
15\r
16Abstract:\r
17\r
18This following section documents the envirnoment variables for the Win NT \r
19build. These variables are used to define the (virtual) hardware \r
20configuration of the NT environment\r
21\r
22A ! can be used to seperate multiple instances in a variable. Each \r
23instance represents a seperate hardware device. \r
24\r
25EFI_WIN_NT_PHYSICAL_DISKS - maps to drives on your system\r
26EFI_WIN_NT_VIRTUAL_DISKS - maps to a device emulated by a file\r
27EFI_WIN_NT_FILE_SYSTEM - mouts a directory as a file system\r
28EFI_WIN_NT_CONSOLE - make a logical comand line window (only one!)\r
29EFI_WIN_NT_UGA - Builds UGA Windows of Width and Height\r
30EFI_WIN_NT_SERIAL_PORT - maps physical serial ports\r
31\r
32 <F>ixed - Fixed disk like a hard drive.\r
33 <R>emovable - Removable media like a floppy or CD-ROM.\r
34 Read <O>nly - Write protected device.\r
35 Read <W>rite - Read write device.\r
36 <block count> - Decimal number of blocks a device supports.\r
37 <block size> - Decimal number of bytes per block.\r
38\r
39 NT envirnonment variable contents. '<' and '>' are not part of the variable, \r
40 they are just used to make this help more readable. There should be no \r
41 spaces between the ';'. Extra spaces will break the variable. A '!' is \r
42 used to seperate multiple devices in a variable.\r
43\r
44 EFI_WIN_NT_VIRTUAL_DISKS = \r
45 <F | R><O | W>;<block count>;<block size>[!...]\r
46\r
47 EFI_WIN_NT_PHYSICAL_DISKS =\r
48 <drive letter>:<F | R><O | W>;<block count>;<block size>[!...]\r
49\r
50 Virtual Disks: These devices use a file to emulate a hard disk or removable\r
51 media device. \r
52 \r
53 Thus a 20 MB emulated hard drive would look like:\r
54 EFI_WIN_NT_VIRTUAL_DISKS=FW;40960;512\r
55\r
56 A 1.44MB emulated floppy with a block size of 1024 would look like:\r
57 EFI_WIN_NT_VIRTUAL_DISKS=RW;1440;1024\r
58\r
59 Physical Disks: These devices use NT to open a real device in your system\r
60\r
61 Thus a 120 MB floppy would look like:\r
62 EFI_WIN_NT_PHYSICAL_DISKS=B:RW;245760;512\r
63\r
64 Thus a standard CD-ROM floppy would look like:\r
65 EFI_WIN_NT_PHYSICAL_DISKS=Z:RO;307200;2048\r
66\r
67 EFI_WIN_NT_FILE_SYSTEM = \r
68 <directory path>[!...]\r
69\r
70 Mounting the two directories C:\FOO and C:\BAR would look like:\r
71 EFI_WIN_NT_FILE_SYSTEM=c:\foo!c:\bar\r
72\r
73 EFI_WIN_NT_CONSOLE = \r
74 <window title>\r
75\r
76 Declaring a text console window with the title "My EFI Console" woild look like:\r
77 EFI_WIN_NT_CONSOLE=My EFI Console\r
78\r
79 EFI_WIN_NT_UGA = \r
80 <width> <height>[!...]\r
81\r
82 Declaring a two UGA windows with resolutions of 800x600 and 1024x768 would look like:\r
83 Example : EFI_WIN_NT_UGA=800 600!1024 768\r
84\r
85 EFI_WIN_NT_SERIAL_PORT = \r
86 <port name>[!...]\r
87\r
88 Declaring two serial ports on COM1 and COM2 would look like:\r
89 Example : EFI_WIN_NT_SERIAL_PORT=COM1!COM2\r
90\r
91 EFI_WIN_NT_PASS_THROUGH =\r
92 <BaseAddress>;<Bus#>;<Device#>;<Function#>\r
93\r
94 Declaring a base address of 0xE0000000 (used for PCI Express devices)\r
95 and having NT32 talk to a device located at bus 0, device 1, function 0:\r
96 Example : EFI_WIN_NT_PASS_THROUGH=E000000;0;1;0\r
97\r
98---*/\r
99\r
100#include "WinNtBusDriver.h"\r
101//#include "PciHostBridge.h"\r
102\r
103//\r
104// Define GUID for the WinNt Bus Driver\r
105//\r
106static EFI_GUID gWinNtBusDriverGuid = {\r
107 0x419f582, 0x625, 0x4531, 0x8a, 0x33, 0x85, 0xa9, 0x96, 0x5c, 0x95, 0xbc\r
108};\r
109\r
110//\r
111// DriverBinding protocol global\r
112//\r
113EFI_DRIVER_BINDING_PROTOCOL gWinNtBusDriverBinding = {\r
114 WinNtBusDriverBindingSupported,\r
115 WinNtBusDriverBindingStart,\r
116 WinNtBusDriverBindingStop,\r
117 0x10,\r
118 NULL,\r
119 NULL\r
120};\r
121\r
122#define NT_PCD_ARRAY_SIZE (sizeof(mPcdEnvironment)/sizeof(NT_PCD_ENTRY))\r
123\r
124//\r
125// Table to map NT Environment variable to the GUID that should be in\r
126// device path.\r
127//\r
128static NT_PCD_ENTRY mPcdEnvironment[] = {\r
129 PcdToken(PcdWinNtConsole), &gEfiWinNtConsoleGuid,\r
130 PcdToken(PcdWinNtUga), &gEfiWinNtUgaGuid,\r
131 PcdToken(PcdWinNtSerialPort), &gEfiWinNtSerialPortGuid,\r
132 PcdToken(PcdWinNtFileSystem), &gEfiWinNtFileSystemGuid,\r
133 PcdToken(PcdWinNtVirtualDisk), &gEfiWinNtVirtualDisksGuid,\r
134 PcdToken(PcdWinNtPhysicalDisk), &gEfiWinNtPhysicalDisksGuid,\r
135 PcdToken(PcdWinNtCpuModel), &gEfiWinNtCPUModelGuid,\r
136 PcdToken(PcdWinNtCpuSpeed), &gEfiWinNtCPUSpeedGuid,\r
137 PcdToken(PcdWinNtMemorySize), &gEfiWinNtMemoryGuid\r
138};\r
139\r
140VOID *\r
141AllocateMemory (\r
142 IN UINTN Size\r
143 )\r
144{\r
145 EFI_STATUS Status;\r
146 VOID *Buffer;\r
147\r
148 Status = gBS->AllocatePool (\r
149 EfiBootServicesData,\r
150 Size,\r
151 (VOID *)&Buffer\r
152 );\r
153 if (EFI_ERROR (Status)) {\r
154 ASSERT (FALSE);\r
155 return NULL;\r
156 }\r
157 return Buffer;\r
158}\r
159\r
160\r
161EFI_STATUS\r
162EFIAPI\r
163WinNtBusDriverBindingSupported (\r
164 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
165 IN EFI_HANDLE ControllerHandle,\r
166 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
167 )\r
168/*++\r
169\r
170Routine Description:\r
171\r
172Arguments:\r
173\r
174Returns:\r
175\r
176 None\r
177\r
178--*/\r
179// TODO: This - add argument and description to function comment\r
180// TODO: ControllerHandle - add argument and description to function comment\r
181// TODO: RemainingDevicePath - add argument and description to function comment\r
182// TODO: EFI_UNSUPPORTED - add return value to function comment\r
183// TODO: EFI_UNSUPPORTED - add return value to function comment\r
184// TODO: EFI_SUCCESS - add return value to function comment\r
185// TODO: EFI_SUCCESS - add return value to function comment\r
186{\r
187 EFI_STATUS Status;\r
188 EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
189 EFI_WIN_NT_THUNK_PROTOCOL *WinNtThunk;\r
190 UINTN Index;\r
191\r
192 //\r
193 // Check the contents of the first Device Path Node of RemainingDevicePath to make sure\r
194 // it is a legal Device Path Node for this bus driver's children.\r
195 //\r
196 if (RemainingDevicePath != NULL) {\r
197 if (RemainingDevicePath->Type != HARDWARE_DEVICE_PATH ||\r
198 RemainingDevicePath->SubType != HW_VENDOR_DP ||\r
199 DevicePathNodeLength(RemainingDevicePath) != sizeof(WIN_NT_VENDOR_DEVICE_PATH_NODE)) {\r
200 return EFI_UNSUPPORTED;\r
201 }\r
202\r
203 for (Index = 0; Index < NT_PCD_ARRAY_SIZE; Index++) {\r
204 if (CompareGuid (&((VENDOR_DEVICE_PATH *) RemainingDevicePath)->Guid, mPcdEnvironment[Index].DevicePathGuid)) {\r
205 break;\r
206 }\r
207 }\r
208\r
209 if (Index >= NT_PCD_ARRAY_SIZE) {\r
210 return EFI_UNSUPPORTED;\r
211 }\r
212 }\r
213 \r
214 //\r
215 // Open the IO Abstraction(s) needed to perform the supported test\r
216 //\r
217 Status = gBS->OpenProtocol (\r
218 ControllerHandle,\r
219 &gEfiDevicePathProtocolGuid,\r
220 &ParentDevicePath,\r
221 This->DriverBindingHandle,\r
222 ControllerHandle,\r
223 EFI_OPEN_PROTOCOL_BY_DRIVER\r
224 );\r
225 if (Status == EFI_ALREADY_STARTED) {\r
226 return EFI_SUCCESS;\r
227 }\r
228\r
229 if (EFI_ERROR (Status)) {\r
230 return Status;\r
231 }\r
232\r
233 gBS->CloseProtocol (\r
234 ControllerHandle,\r
235 &gEfiDevicePathProtocolGuid,\r
236 This->DriverBindingHandle,\r
237 ControllerHandle\r
238 );\r
239\r
240 Status = gBS->OpenProtocol (\r
241 ControllerHandle,\r
242 &gEfiWinNtThunkProtocolGuid,\r
243 &WinNtThunk,\r
244 This->DriverBindingHandle,\r
245 ControllerHandle,\r
246 EFI_OPEN_PROTOCOL_BY_DRIVER\r
247 );\r
248 if (Status == EFI_ALREADY_STARTED) {\r
249 return EFI_SUCCESS;\r
250 }\r
251\r
252 if (EFI_ERROR (Status)) {\r
253 return Status;\r
254 }\r
255\r
256 //\r
257 // Since we call through WinNtThunk we need to make sure it's valid\r
258 //\r
259 Status = EFI_SUCCESS;\r
260 if (WinNtThunk->Signature != EFI_WIN_NT_THUNK_PROTOCOL_SIGNATURE) {\r
261 Status = EFI_UNSUPPORTED;\r
262 }\r
263\r
264 //\r
265 // Close the I/O Abstraction(s) used to perform the supported test\r
266 //\r
267 gBS->CloseProtocol (\r
268 ControllerHandle,\r
269 &gEfiWinNtThunkProtocolGuid,\r
270 This->DriverBindingHandle,\r
271 ControllerHandle\r
272 );\r
273\r
274 return Status;\r
275}\r
276\r
277EFI_STATUS\r
278EFIAPI\r
279WinNtBusDriverBindingStart (\r
280 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
281 IN EFI_HANDLE ControllerHandle,\r
282 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
283 )\r
284/*++\r
285\r
286Routine Description:\r
287\r
288Arguments:\r
289\r
290Returns:\r
291\r
292 None\r
293\r
294--*/\r
295// TODO: This - add argument and description to function comment\r
296// TODO: ControllerHandle - add argument and description to function comment\r
297// TODO: RemainingDevicePath - add argument and description to function comment\r
298// TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r
299// TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r
300// TODO: EFI_SUCCESS - add return value to function comment\r
301{\r
302 EFI_STATUS Status;\r
303 EFI_STATUS InstallStatus;\r
304 EFI_WIN_NT_THUNK_PROTOCOL *WinNtThunk;\r
305 EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
306 WIN_NT_BUS_DEVICE *WinNtBusDevice;\r
307 WIN_NT_IO_DEVICE *WinNtDevice;\r
308 UINTN Index;\r
309 CHAR16 *StartString;\r
310 CHAR16 *SubString;\r
311 UINT16 Count;\r
312 UINTN StringSize;\r
313 UINT16 ComponentName[MAX_NT_ENVIRNMENT_VARIABLE_LENGTH];\r
314 WIN_NT_VENDOR_DEVICE_PATH_NODE *Node;\r
315 BOOLEAN CreateDevice;\r
316 CHAR16 *TempStr;\r
317 CHAR16 *PcdTempStr;\r
318 UINTN TempStrSize;\r
319\r
878ddf1f 320 Status = EFI_UNSUPPORTED;\r
321\r
322 //\r
323 // Grab the protocols we need\r
324 //\r
325 Status = gBS->OpenProtocol (\r
326 ControllerHandle,\r
327 &gEfiDevicePathProtocolGuid,\r
328 &ParentDevicePath,\r
329 This->DriverBindingHandle,\r
330 ControllerHandle,\r
331 EFI_OPEN_PROTOCOL_BY_DRIVER\r
332 );\r
333 if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r
334 return Status;\r
335 }\r
336\r
337 Status = gBS->OpenProtocol (\r
338 ControllerHandle,\r
339 &gEfiWinNtThunkProtocolGuid,\r
340 &WinNtThunk,\r
341 This->DriverBindingHandle,\r
342 ControllerHandle,\r
343 EFI_OPEN_PROTOCOL_BY_DRIVER\r
344 );\r
345 if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r
346 return Status;\r
347 }\r
348\r
349 if (Status != EFI_ALREADY_STARTED) {\r
350 Status = gBS->AllocatePool (\r
351 EfiBootServicesData,\r
352 sizeof (WIN_NT_BUS_DEVICE),\r
353 (VOID *) &WinNtBusDevice\r
354 );\r
355 if (EFI_ERROR (Status)) {\r
356 return Status;\r
357 }\r
358\r
359 WinNtBusDevice->Signature = WIN_NT_BUS_DEVICE_SIGNATURE;\r
360 WinNtBusDevice->ControllerNameTable = NULL;\r
361\r
362 AddUnicodeString (\r
363 "eng",\r
364 gWinNtBusDriverComponentName.SupportedLanguages,\r
365 &WinNtBusDevice->ControllerNameTable,\r
366 L"Windows Bus Controller"\r
367 );\r
368\r
369 Status = gBS->InstallMultipleProtocolInterfaces (\r
370 &ControllerHandle,\r
371 &gWinNtBusDriverGuid,\r
372 WinNtBusDevice,\r
373 NULL\r
374 );\r
375 if (EFI_ERROR (Status)) {\r
376 FreeUnicodeStringTable (WinNtBusDevice->ControllerNameTable);\r
377 gBS->FreePool (WinNtBusDevice);\r
378 return Status;\r
379 }\r
380 }\r
381\r
382 //\r
383 // Loop on the Variable list. Parse each variable to produce a set of handles that\r
384 // represent virtual hardware devices.\r
385 //\r
386 InstallStatus = EFI_NOT_FOUND;\r
387 for (Index = 0; Index < NT_PCD_ARRAY_SIZE; Index++) {\r
388 PcdTempStr = (VOID *)LibPcdGetPtr (mPcdEnvironment[Index].Token);\r
389 ASSERT (PcdTempStr != NULL);\r
390\r
391 TempStrSize = StrLen (PcdTempStr);\r
392 TempStr = AllocateMemory ((TempStrSize * sizeof (CHAR16)) + 1);\r
393 StrCpy (TempStr, PcdTempStr);\r
394\r
395 StartString = TempStr;\r
396\r
397 //\r
398 // Parse the envirnment variable into sub strings using '!' as a delimator.\r
399 // Each substring needs it's own handle to be added to the system. This code\r
400 // does not understand the sub string. Thats the device drivers job.\r
401 //\r
402 Count = 0;\r
403 while (*StartString != '\0') {\r
404\r
405 //\r
406 // Find the end of the sub string\r
407 //\r
408 SubString = StartString;\r
409 while (*SubString != '\0' && *SubString != '!') {\r
410 SubString++;\r
411 }\r
412\r
413 if (*SubString == '!') {\r
414 //\r
415 // Replace token with '\0' to make sub strings. If this is the end\r
416 // of the string SubString will already point to NULL.\r
417 //\r
418 *SubString = '\0';\r
419 SubString++;\r
420 }\r
421\r
422 CreateDevice = TRUE;\r
423 if (RemainingDevicePath != NULL) {\r
424 CreateDevice = FALSE;\r
425 Node = (WIN_NT_VENDOR_DEVICE_PATH_NODE *) RemainingDevicePath;\r
426 if (Node->VendorDevicePath.Header.Type == HARDWARE_DEVICE_PATH &&\r
427 Node->VendorDevicePath.Header.SubType == HW_VENDOR_DP &&\r
428 DevicePathNodeLength (&Node->VendorDevicePath.Header) == sizeof (WIN_NT_VENDOR_DEVICE_PATH_NODE)\r
429 ) {\r
430 if (CompareGuid (&Node->VendorDevicePath.Guid, mPcdEnvironment[Index].DevicePathGuid) &&\r
431 Node->Instance == Count\r
432 ) {\r
433 CreateDevice = TRUE;\r
434 }\r
435 }\r
436 }\r
437\r
438 if (CreateDevice) {\r
439\r
440 //\r
441 // Allocate instance structure, and fill in parent information.\r
442 //\r
443 WinNtDevice = AllocateMemory (sizeof (WIN_NT_IO_DEVICE));\r
444 if (WinNtDevice == NULL) {\r
445 return EFI_OUT_OF_RESOURCES;\r
446 }\r
447\r
448 WinNtDevice->Handle = NULL;\r
449 WinNtDevice->ControllerHandle = ControllerHandle;\r
450 WinNtDevice->ParentDevicePath = ParentDevicePath;\r
451\r
452 WinNtDevice->WinNtIo.WinNtThunk = WinNtThunk;\r
453\r
454 //\r
455 // Plus 2 to account for the NULL at the end of the Unicode string\r
456 //\r
457 StringSize = (UINTN) ((UINT8 *) SubString - (UINT8 *) StartString) + sizeof (CHAR16);\r
458 WinNtDevice->WinNtIo.EnvString = AllocateMemory (StringSize);\r
459 if (WinNtDevice->WinNtIo.EnvString != NULL) {\r
460 CopyMem (WinNtDevice->WinNtIo.EnvString, StartString, StringSize);\r
461 }\r
462\r
463 WinNtDevice->ControllerNameTable = NULL;\r
464\r
c4bbb32b 465 WinNtThunk->SPrintf (ComponentName, sizeof (ComponentName), L"%s", WinNtDevice->WinNtIo.EnvString);\r
878ddf1f 466\r
467 WinNtDevice->DevicePath = WinNtBusCreateDevicePath (\r
468 ParentDevicePath,\r
469 mPcdEnvironment[Index].DevicePathGuid,\r
470 Count\r
471 );\r
472 if (WinNtDevice->DevicePath == NULL) {\r
473 gBS->FreePool (WinNtDevice);\r
474 return EFI_OUT_OF_RESOURCES;\r
475 }\r
476\r
477 AddUnicodeString (\r
478 "eng",\r
479 gWinNtBusDriverComponentName.SupportedLanguages,\r
480 &WinNtDevice->ControllerNameTable,\r
481 ComponentName\r
482 );\r
483\r
484 WinNtDevice->WinNtIo.TypeGuid = mPcdEnvironment[Index].DevicePathGuid;\r
485 WinNtDevice->WinNtIo.InstanceNumber = Count;\r
486\r
487 WinNtDevice->Signature = WIN_NT_IO_DEVICE_SIGNATURE;\r
488\r
489 Status = gBS->InstallMultipleProtocolInterfaces (\r
490 &WinNtDevice->Handle,\r
491 &gEfiDevicePathProtocolGuid,\r
492 WinNtDevice->DevicePath,\r
493 &gEfiWinNtIoProtocolGuid,\r
494 &WinNtDevice->WinNtIo,\r
495 NULL\r
496 );\r
497 if (EFI_ERROR (Status)) {\r
498 FreeUnicodeStringTable (WinNtDevice->ControllerNameTable);\r
499 gBS->FreePool (WinNtDevice);\r
500 } else {\r
501 //\r
502 // Open For Child Device\r
503 //\r
504 Status = gBS->OpenProtocol (\r
505 ControllerHandle,\r
506 &gEfiWinNtThunkProtocolGuid,\r
507 &WinNtThunk,\r
508 This->DriverBindingHandle,\r
509 WinNtDevice->Handle,\r
510 EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
511 );\r
512 if (!EFI_ERROR (Status)) {\r
513 InstallStatus = EFI_SUCCESS;\r
514 }\r
515 }\r
516 }\r
517\r
518 //\r
519 // Parse Next sub string. This will point to '\0' if we are at the end.\r
520 //\r
521 Count++;\r
522 StartString = SubString;\r
523 }\r
524\r
525 gBS->FreePool (TempStr);\r
526 }\r
527\r
528 return EFI_SUCCESS;\r
529}\r
530\r
531\r
532EFI_STATUS\r
533EFIAPI\r
534WinNtBusDriverBindingStop (\r
535 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
536 IN EFI_HANDLE ControllerHandle,\r
537 IN UINTN NumberOfChildren,\r
538 IN EFI_HANDLE *ChildHandleBuffer\r
539 )\r
540/*++\r
541\r
542Routine Description:\r
543\r
544Arguments:\r
545\r
546Returns:\r
547\r
548 None\r
549\r
550--*/\r
551// TODO: This - add argument and description to function comment\r
552// TODO: ControllerHandle - add argument and description to function comment\r
553// TODO: NumberOfChildren - add argument and description to function comment\r
554// TODO: ChildHandleBuffer - add argument and description to function comment\r
555// TODO: EFI_SUCCESS - add return value to function comment\r
556// TODO: EFI_DEVICE_ERROR - add return value to function comment\r
557// TODO: EFI_SUCCESS - add return value to function comment\r
558{\r
559 EFI_STATUS Status;\r
560 UINTN Index;\r
561 BOOLEAN AllChildrenStopped;\r
562 EFI_WIN_NT_IO_PROTOCOL *WinNtIo;\r
563 WIN_NT_BUS_DEVICE *WinNtBusDevice;\r
564 WIN_NT_IO_DEVICE *WinNtDevice;\r
565 EFI_WIN_NT_THUNK_PROTOCOL *WinNtThunk;\r
566\r
567 //\r
568 // Complete all outstanding transactions to Controller.\r
569 // Don't allow any new transaction to Controller to be started.\r
570 //\r
571\r
572 if (NumberOfChildren == 0) {\r
573 //\r
574 // Close the bus driver\r
575 //\r
576 Status = gBS->OpenProtocol (\r
577 ControllerHandle,\r
578 &gWinNtBusDriverGuid,\r
579 &WinNtBusDevice,\r
580 This->DriverBindingHandle,\r
581 ControllerHandle,\r
582 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
583 );\r
584 if (EFI_ERROR (Status)) {\r
585 return Status;\r
586 }\r
587\r
588 gBS->UninstallMultipleProtocolInterfaces (\r
589 ControllerHandle,\r
590 &gWinNtBusDriverGuid,\r
591 WinNtBusDevice,\r
592 NULL\r
593 );\r
594\r
595 FreeUnicodeStringTable (WinNtBusDevice->ControllerNameTable);\r
596\r
597 gBS->FreePool (WinNtBusDevice);\r
598\r
599 gBS->CloseProtocol (\r
600 ControllerHandle,\r
601 &gEfiWinNtThunkProtocolGuid,\r
602 This->DriverBindingHandle,\r
603 ControllerHandle\r
604 );\r
605\r
606 gBS->CloseProtocol (\r
607 ControllerHandle,\r
608 &gEfiDevicePathProtocolGuid,\r
609 This->DriverBindingHandle,\r
610 ControllerHandle\r
611 );\r
612 return EFI_SUCCESS;\r
613 }\r
614\r
615 AllChildrenStopped = TRUE;\r
616\r
617 for (Index = 0; Index < NumberOfChildren; Index++) {\r
618\r
619 Status = gBS->OpenProtocol (\r
620 ChildHandleBuffer[Index],\r
621 &gEfiWinNtIoProtocolGuid,\r
622 &WinNtIo,\r
623 This->DriverBindingHandle,\r
624 ControllerHandle,\r
625 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
626 );\r
627 if (!EFI_ERROR (Status)) {\r
628\r
629 WinNtDevice = WIN_NT_IO_DEVICE_FROM_THIS (WinNtIo);\r
630\r
631 Status = gBS->CloseProtocol (\r
632 ControllerHandle,\r
633 &gEfiWinNtThunkProtocolGuid,\r
634 This->DriverBindingHandle,\r
635 WinNtDevice->Handle\r
636 );\r
637\r
638 Status = gBS->UninstallMultipleProtocolInterfaces (\r
639 WinNtDevice->Handle,\r
640 &gEfiDevicePathProtocolGuid,\r
641 WinNtDevice->DevicePath,\r
642 &gEfiWinNtIoProtocolGuid,\r
643 &WinNtDevice->WinNtIo,\r
644 NULL\r
645 );\r
646\r
647 if (EFI_ERROR (Status)) {\r
648 gBS->OpenProtocol (\r
649 ControllerHandle,\r
650 &gEfiWinNtThunkProtocolGuid,\r
651 (VOID **) &WinNtThunk,\r
652 This->DriverBindingHandle,\r
653 WinNtDevice->Handle,\r
654 EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
655 );\r
656 } else {\r
657 //\r
658 // Close the child handle\r
659 //\r
660 FreeUnicodeStringTable (WinNtDevice->ControllerNameTable);\r
661 gBS->FreePool (WinNtDevice);\r
662 }\r
663 }\r
664\r
665 if (EFI_ERROR (Status)) {\r
666 AllChildrenStopped = FALSE;\r
667 }\r
668 }\r
669\r
670 if (!AllChildrenStopped) {\r
671 return EFI_DEVICE_ERROR;\r
672 }\r
673\r
674 return EFI_SUCCESS;\r
675}\r
676\r
677EFI_DEVICE_PATH_PROTOCOL *\r
678WinNtBusCreateDevicePath (\r
679 IN EFI_DEVICE_PATH_PROTOCOL *RootDevicePath,\r
680 IN EFI_GUID *Guid,\r
681 IN UINT16 InstanceNumber\r
682 )\r
683/*++\r
684\r
685Routine Description:\r
686 Create a device path node using Guid and InstanceNumber and append it to\r
687 the passed in RootDevicePath\r
688\r
689Arguments:\r
690 RootDevicePath - Root of the device path to return.\r
691\r
692 Guid - GUID to use in vendor device path node.\r
693\r
694 InstanceNumber - Instance number to use in the vendor device path. This\r
695 argument is needed to make sure each device path is unique.\r
696\r
697Returns:\r
698\r
699 EFI_DEVICE_PATH_PROTOCOL \r
700\r
701--*/\r
702{\r
703 WIN_NT_VENDOR_DEVICE_PATH_NODE DevicePath;\r
704\r
705 DevicePath.VendorDevicePath.Header.Type = HARDWARE_DEVICE_PATH;\r
706 DevicePath.VendorDevicePath.Header.SubType = HW_VENDOR_DP;\r
707 SetDevicePathNodeLength (&DevicePath.VendorDevicePath.Header, sizeof (WIN_NT_VENDOR_DEVICE_PATH_NODE));\r
708\r
709 //\r
710 // The GUID defines the Class\r
711 //\r
712 CopyMem (&DevicePath.VendorDevicePath.Guid, Guid, sizeof (EFI_GUID));\r
713\r
714 //\r
715 // Add an instance number so we can make sure there are no Device Path\r
716 // duplication.\r
717 //\r
718 DevicePath.Instance = InstanceNumber;\r
719\r
720 return AppendDevicePathNode (\r
721 RootDevicePath,\r
722 (EFI_DEVICE_PATH_PROTOCOL *) &DevicePath\r
723 );\r
724}\r