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Clean up the private GUID definition in module Level.
[mirror_edk2.git] / MdeModulePkg / Universal / Network / VlanConfigDxe / VlanConfigImpl.c
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1/** @file\r
2 HII Config Access protocol implementation of VLAN configuration module.\r
3\r
4Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>\r
5This program and the accompanying materials\r
6are licensed and made available under the terms and conditions\r
7of the BSD License which accompanies this distribution. The full\r
8text of the license may be found at<BR>\r
9http://opensource.org/licenses/bsd-license.php\r
10\r
11THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
12WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
13\r
14**/\r
15\r
16#include "VlanConfigImpl.h"\r
17\r
18CHAR16 mVlanStorageName[] = L"VlanNvData";\r
19EFI_HII_CONFIG_ROUTING_PROTOCOL *mHiiConfigRouting = NULL;\r
20\r
21VLAN_CONFIG_PRIVATE_DATA mVlanConfigPrivateDateTemplate = {\r
22 VLAN_CONFIG_PRIVATE_DATA_SIGNATURE,\r
23 {\r
24 VlanExtractConfig,\r
25 VlanRouteConfig,\r
26 VlanCallback\r
27 }\r
28};\r
29\r
30VENDOR_DEVICE_PATH mHiiVendorDevicePathNode = {\r
31 {\r
32 HARDWARE_DEVICE_PATH,\r
33 HW_VENDOR_DP,\r
34 {\r
35 (UINT8) (sizeof (VENDOR_DEVICE_PATH)),\r
36 (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)\r
37 }\r
38 },\r
39 VLAN_CONFIG_FORM_SET_GUID\r
40};\r
41\r
42/**\r
43 This function allows a caller to extract the current configuration for one\r
44 or more named elements from the target driver.\r
45\r
46 @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
47 @param[in] Request A null-terminated Unicode string in\r
48 <ConfigRequest> format.\r
49 @param[out] Progress On return, points to a character in the Request\r
50 string. Points to the string's null terminator if\r
51 request was successful. Points to the most recent\r
52 '&' before the first failing name/value pair (or\r
53 the beginning of the string if the failure is in\r
54 the first name/value pair) if the request was not\r
55 successful.\r
56 @param[out] Results A null-terminated Unicode string in\r
57 <ConfigAltResp> format which has all values filled\r
58 in for the names in the Request string. String to\r
59 be allocated by the called function.\r
60\r
61 @retval EFI_SUCCESS The Results is filled with the requested values.\r
62 @retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.\r
63 @retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.\r
64 @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r
65 driver.\r
66\r
67**/\r
68EFI_STATUS\r
69EFIAPI\r
70VlanExtractConfig (\r
71 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
72 IN CONST EFI_STRING Request,\r
73 OUT EFI_STRING *Progress,\r
74 OUT EFI_STRING *Results\r
75 )\r
76{\r
77 EFI_STATUS Status;\r
78 UINTN BufferSize;\r
79 VLAN_CONFIGURATION Configuration;\r
80 VLAN_CONFIG_PRIVATE_DATA *PrivateData;\r
81 EFI_STRING ConfigRequestHdr;\r
82 EFI_STRING ConfigRequest;\r
83 BOOLEAN AllocatedRequest;\r
84 UINTN Size;\r
85\r
86 if (Progress == NULL || Results == NULL) {\r
87 return EFI_INVALID_PARAMETER;\r
88 }\r
89\r
90 *Progress = Request;\r
91 if ((Request != NULL) && !HiiIsConfigHdrMatch (Request, &gVlanConfigFormSetGuid, mVlanStorageName)) {\r
92 return EFI_NOT_FOUND;\r
93 }\r
94\r
95 ConfigRequestHdr = NULL;\r
96 ConfigRequest = NULL;\r
97 AllocatedRequest = FALSE;\r
98 Size = 0;\r
99\r
100 //\r
101 // Retrieve the pointer to the UEFI HII Config Routing Protocol\r
102 //\r
103 if (mHiiConfigRouting == NULL) {\r
104 gBS->LocateProtocol (&gEfiHiiConfigRoutingProtocolGuid, NULL, (VOID **) &mHiiConfigRouting);\r
105 }\r
106 ASSERT (mHiiConfigRouting != NULL);\r
107\r
108 //\r
109 // Convert buffer data to <ConfigResp> by helper function BlockToConfig()\r
110 //\r
111 PrivateData = VLAN_CONFIG_PRIVATE_DATA_FROM_THIS (This);\r
112 ZeroMem (&Configuration, sizeof (VLAN_CONFIGURATION));\r
113 BufferSize = sizeof (Configuration);\r
114 ConfigRequest = Request;\r
115 if ((Request == NULL) || (StrStr (Request, L"OFFSET") == NULL)) {\r
116 //\r
117 // Request has no request element, construct full request string.\r
118 // Allocate and fill a buffer large enough to hold the <ConfigHdr> template\r
119 // followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator\r
120 //\r
121 ConfigRequestHdr = HiiConstructConfigHdr (&gVlanConfigFormSetGuid, mVlanStorageName, PrivateData->DriverHandle);\r
122 Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);\r
123 ConfigRequest = AllocateZeroPool (Size);\r
124 ASSERT (ConfigRequest != NULL);\r
125 AllocatedRequest = TRUE;\r
126 UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64)BufferSize);\r
127 FreePool (ConfigRequestHdr);\r
128 }\r
129\r
130 Status = mHiiConfigRouting->BlockToConfig (\r
131 mHiiConfigRouting,\r
132 ConfigRequest,\r
133 (UINT8 *) &Configuration,\r
134 BufferSize,\r
135 Results,\r
136 Progress\r
137 );\r
138 //\r
139 // Free the allocated config request string.\r
140 //\r
141 if (AllocatedRequest) {\r
142 FreePool (ConfigRequest);\r
143 ConfigRequest = NULL;\r
144 }\r
145 //\r
146 // Set Progress string to the original request string.\r
147 //\r
148 if (Request == NULL) {\r
149 *Progress = NULL;\r
150 } else if (StrStr (Request, L"OFFSET") == NULL) {\r
151 *Progress = Request + StrLen (Request);\r
152 }\r
153\r
154 return Status;\r
155}\r
156\r
157\r
158/**\r
159 This function processes the results of changes in configuration.\r
160\r
161 @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
162 @param[in] Configuration A null-terminated Unicode string in <ConfigResp>\r
163 format.\r
164 @param[out] Progress A pointer to a string filled in with the offset of\r
165 the most recent '&' before the first failing\r
166 name/value pair (or the beginning of the string if\r
167 the failure is in the first name/value pair) or\r
168 the terminating NULL if all was successful.\r
169\r
170 @retval EFI_SUCCESS The Results is processed successfully.\r
171 @retval EFI_INVALID_PARAMETER Configuration is NULL.\r
172 @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r
173 driver.\r
174\r
175**/\r
176EFI_STATUS\r
177EFIAPI\r
178VlanRouteConfig (\r
179 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
180 IN CONST EFI_STRING Configuration,\r
181 OUT EFI_STRING *Progress\r
182 )\r
183{\r
184 if (Configuration == NULL || Progress == NULL) {\r
185 return EFI_INVALID_PARAMETER;\r
186 }\r
187\r
188 *Progress = Configuration;\r
189 if (!HiiIsConfigHdrMatch (Configuration, &gVlanConfigFormSetGuid, mVlanStorageName)) {\r
190 return EFI_NOT_FOUND;\r
191 }\r
192\r
193 *Progress = Configuration + StrLen (Configuration);\r
194 return EFI_SUCCESS;\r
195}\r
196\r
197/**\r
198 This function processes the results of changes in configuration.\r
199\r
200 @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
201 @param[in] Action Specifies the type of action taken by the browser.\r
202 @param[in] QuestionId A unique value which is sent to the original\r
203 exporting driver so that it can identify the type\r
204 of data to expect.\r
205 @param[in] Type The type of value for the question.\r
206 @param[in] Value A pointer to the data being sent to the original\r
207 exporting driver.\r
208 @param[out] ActionRequest On return, points to the action requested by the\r
209 callback function.\r
210\r
211 @retval EFI_SUCCESS The callback successfully handled the action.\r
212 @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the\r
213 variable and its data.\r
214 @retval EFI_DEVICE_ERROR The variable could not be saved.\r
215 @retval EFI_UNSUPPORTED The specified Action is not supported by the\r
216 callback.\r
217\r
218**/\r
219EFI_STATUS\r
220EFIAPI\r
221VlanCallback (\r
222 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
223 IN EFI_BROWSER_ACTION Action,\r
224 IN EFI_QUESTION_ID QuestionId,\r
225 IN UINT8 Type,\r
226 IN EFI_IFR_TYPE_VALUE *Value,\r
227 OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest\r
228 )\r
229{\r
230 VLAN_CONFIG_PRIVATE_DATA *PrivateData;\r
231 VLAN_CONFIGURATION *Configuration;\r
232 EFI_VLAN_CONFIG_PROTOCOL *VlanConfig;\r
233 UINTN Index;\r
234 EFI_HANDLE VlanHandle;\r
235\r
236 PrivateData = VLAN_CONFIG_PRIVATE_DATA_FROM_THIS (This);\r
237\r
238 if ((Action == EFI_BROWSER_ACTION_FORM_OPEN) || (Action == EFI_BROWSER_ACTION_FORM_CLOSE)) {\r
239 return EFI_SUCCESS;\r
240 }\r
241\r
242 if (Action == EFI_BROWSER_ACTION_CHANGING) {\r
243 //\r
244 // Get Browser data\r
245 //\r
246 Configuration = AllocateZeroPool (sizeof (VLAN_CONFIGURATION));\r
247 ASSERT (Configuration != NULL);\r
248 HiiGetBrowserData (&gVlanConfigFormSetGuid, mVlanStorageName, sizeof (VLAN_CONFIGURATION), (UINT8 *) Configuration);\r
249\r
250 VlanConfig = PrivateData->VlanConfig;\r
251\r
252 switch (QuestionId) {\r
253 case VLAN_ADD_QUESTION_ID:\r
254 //\r
255 // Add a VLAN\r
256 //\r
257 VlanConfig->Set (VlanConfig, Configuration->VlanId, Configuration->Priority);\r
258 VlanUpdateForm (PrivateData);\r
259\r
260 //\r
261 // Connect the newly created VLAN device\r
262 //\r
263 VlanHandle = NetLibGetVlanHandle (PrivateData->ControllerHandle, Configuration->VlanId);\r
264 if (VlanHandle == NULL) {\r
265 //\r
266 // There may be no child handle created for VLAN ID 0, connect the parent handle\r
267 //\r
268 VlanHandle = PrivateData->ControllerHandle;\r
269 }\r
270 gBS->ConnectController (VlanHandle, NULL, NULL, TRUE);\r
271\r
272 //\r
273 // Clear UI data\r
274 //\r
275 *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;\r
276 Configuration->VlanId = 0;\r
277 Configuration->Priority = 0;\r
278 break;\r
279\r
280 case VLAN_REMOVE_QUESTION_ID:\r
281 //\r
282 // Remove VLAN\r
283 //\r
284 ASSERT (PrivateData->NumberOfVlan <= MAX_VLAN_NUMBER);\r
285 for (Index = 0; Index < PrivateData->NumberOfVlan; Index++) {\r
286 if (Configuration->VlanList[Index] != 0) {\r
287 //\r
288 // Checkbox is selected, need remove this VLAN\r
289 //\r
290 VlanConfig->Remove (VlanConfig, PrivateData->VlanId[Index]);\r
291 }\r
292 }\r
293\r
294 VlanUpdateForm (PrivateData);\r
295 if (PrivateData->NumberOfVlan == 0) {\r
296 //\r
297 // No VLAN device now, connect the physical NIC handle.\r
298 // Note: PrivateData->NumberOfVlan has been updated by VlanUpdateForm()\r
299 //\r
300 gBS->ConnectController (PrivateData->ControllerHandle, NULL, NULL, TRUE);\r
301 }\r
302\r
303 *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;\r
304 ZeroMem (Configuration->VlanList, MAX_VLAN_NUMBER);\r
305 break;\r
306\r
307 case VLAN_UPDATE_QUESTION_ID:\r
308 //\r
309 // Update current VLAN list into Form.\r
310 //\r
311 VlanUpdateForm (PrivateData);\r
312 break;\r
313\r
314 default:\r
315 break;\r
316 }\r
317\r
318 HiiSetBrowserData (&gVlanConfigFormSetGuid, mVlanStorageName, sizeof (VLAN_CONFIGURATION), (UINT8 *) Configuration, NULL);\r
319 FreePool (Configuration);\r
320 return EFI_SUCCESS;\r
321 }\r
322\r
323 //\r
324 // All other action return unsupported.\r
325 //\r
326 return EFI_UNSUPPORTED;\r
327}\r
328\r
329\r
330/**\r
331 This function update VLAN list in the VLAN configuration Form.\r
332\r
333 @param[in, out] PrivateData Points to VLAN configuration private data.\r
334\r
335**/\r
336VOID\r
337VlanUpdateForm (\r
338 IN OUT VLAN_CONFIG_PRIVATE_DATA *PrivateData\r
339 )\r
340{\r
341 EFI_VLAN_CONFIG_PROTOCOL *VlanConfig;\r
342 UINT16 NumberOfVlan;\r
343 UINTN Index;\r
344 EFI_VLAN_FIND_DATA *VlanData;\r
345 VOID *StartOpCodeHandle;\r
346 EFI_IFR_GUID_LABEL *StartLabel;\r
347 VOID *EndOpCodeHandle;\r
348 EFI_IFR_GUID_LABEL *EndLabel;\r
349 CHAR16 *String;\r
350 CHAR16 VlanStr[30];\r
351 CHAR16 VlanIdStr[6];\r
352 UINTN DigitalCount;\r
353 EFI_STRING_ID StringId;\r
354\r
355 //\r
356 // Find current VLAN configuration\r
357 //\r
358 VlanData = NULL;\r
359 NumberOfVlan = 0;\r
360 VlanConfig = PrivateData->VlanConfig;\r
361 VlanConfig->Find (VlanConfig, NULL, &NumberOfVlan, &VlanData);\r
362\r
363 //\r
364 // Update VLAN configuration in PrivateData\r
365 //\r
366 if (NumberOfVlan > MAX_VLAN_NUMBER) {\r
367 NumberOfVlan = MAX_VLAN_NUMBER;\r
368 }\r
369 PrivateData->NumberOfVlan = NumberOfVlan;\r
370\r
371 //\r
372 // Init OpCode Handle\r
373 //\r
374 StartOpCodeHandle = HiiAllocateOpCodeHandle ();\r
375 ASSERT (StartOpCodeHandle != NULL);\r
376\r
377 EndOpCodeHandle = HiiAllocateOpCodeHandle ();\r
378 ASSERT (EndOpCodeHandle != NULL);\r
379\r
380 //\r
381 // Create Hii Extend Label OpCode as the start opcode\r
382 //\r
383 StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r
384 StartOpCodeHandle,\r
385 &gEfiIfrTianoGuid,\r
386 NULL,\r
387 sizeof (EFI_IFR_GUID_LABEL)\r
388 );\r
389 StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r
390 StartLabel->Number = LABEL_VLAN_LIST;\r
391\r
392 //\r
393 // Create Hii Extend Label OpCode as the end opcode\r
394 //\r
395 EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r
396 EndOpCodeHandle,\r
397 &gEfiIfrTianoGuid,\r
398 NULL,\r
399 sizeof (EFI_IFR_GUID_LABEL)\r
400 );\r
401 EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r
402 EndLabel->Number = LABEL_END;\r
403\r
404 ZeroMem (PrivateData->VlanId, MAX_VLAN_NUMBER);\r
405 for (Index = 0; Index < NumberOfVlan; Index++) {\r
406 String = VlanStr;\r
407\r
408 StrCpy (String, L" VLAN ID:");\r
409 String += 10;\r
410 //\r
411 // Pad VlanId string up to 4 characters with space\r
412 //\r
413 DigitalCount = UnicodeValueToString (VlanIdStr, 0, VlanData[Index].VlanId, 5);\r
414 SetMem16 (String, (4 - DigitalCount) * sizeof (CHAR16), L' ');\r
415 StrCpy (String + 4 - DigitalCount, VlanIdStr);\r
416 String += 4;\r
417\r
418 StrCpy (String, L", Priority:");\r
419 String += 11;\r
420 String += UnicodeValueToString (String, 0, VlanData[Index].Priority, 4);\r
421 *String = 0;\r
422\r
423 StringId = HiiSetString (PrivateData->HiiHandle, 0, VlanStr, NULL);\r
424 ASSERT (StringId != 0);\r
425\r
426 HiiCreateCheckBoxOpCode (\r
427 StartOpCodeHandle,\r
428 (EFI_QUESTION_ID) (VLAN_LIST_VAR_OFFSET + Index),\r
429 VLAN_CONFIGURATION_VARSTORE_ID,\r
430 (UINT16) (VLAN_LIST_VAR_OFFSET + Index),\r
431 StringId,\r
432 STRING_TOKEN (STR_VLAN_VLAN_LIST_HELP),\r
433 0,\r
434 0,\r
435 NULL\r
436 );\r
437\r
438 //\r
439 // Save VLAN id to private data\r
440 //\r
441 PrivateData->VlanId[Index] = VlanData[Index].VlanId;\r
442 }\r
443\r
444 HiiUpdateForm (\r
445 PrivateData->HiiHandle, // HII handle\r
446 &gVlanConfigFormSetGuid, // Formset GUID\r
447 VLAN_CONFIGURATION_FORM_ID, // Form ID\r
448 StartOpCodeHandle, // Label for where to insert opcodes\r
449 EndOpCodeHandle // Replace data\r
450 );\r
451\r
452 HiiFreeOpCodeHandle (StartOpCodeHandle);\r
453 HiiFreeOpCodeHandle (EndOpCodeHandle);\r
454\r
455 if (VlanData != NULL) {\r
456 FreePool (VlanData);\r
457 }\r
458}\r
459\r
460\r
461/**\r
462 This function publish the VLAN configuration Form for a network device. The\r
463 HII Config Access protocol will be installed on a child handle of the network\r
464 device.\r
465\r
466 @param[in, out] PrivateData Points to VLAN configuration private data.\r
467\r
468 @retval EFI_SUCCESS HII Form is installed for this network device.\r
469 @retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.\r
470 @retval Others Other errors as indicated.\r
471\r
472**/\r
473EFI_STATUS\r
474InstallVlanConfigForm (\r
475 IN OUT VLAN_CONFIG_PRIVATE_DATA *PrivateData\r
476 )\r
477{\r
478 EFI_STATUS Status;\r
479 EFI_HII_HANDLE HiiHandle;\r
480 EFI_HANDLE DriverHandle;\r
481 CHAR16 Str[26 + sizeof (EFI_MAC_ADDRESS) * 2 + 1];\r
482 CHAR16 *MacString;\r
483 EFI_DEVICE_PATH_PROTOCOL *ChildDevicePath;\r
484 EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r
485\r
486 //\r
487 // Create child handle and install HII Config Access Protocol\r
488 //\r
489 ChildDevicePath = AppendDevicePathNode (\r
490 PrivateData->ParentDevicePath,\r
491 (CONST EFI_DEVICE_PATH_PROTOCOL *) &mHiiVendorDevicePathNode\r
492 );\r
493 if (ChildDevicePath == NULL) {\r
494 return EFI_OUT_OF_RESOURCES;\r
495 }\r
496 PrivateData->ChildDevicePath = ChildDevicePath;\r
497\r
498 DriverHandle = NULL;\r
499 ConfigAccess = &PrivateData->ConfigAccess;\r
500 Status = gBS->InstallMultipleProtocolInterfaces (\r
501 &DriverHandle,\r
502 &gEfiDevicePathProtocolGuid,\r
503 ChildDevicePath,\r
504 &gEfiHiiConfigAccessProtocolGuid,\r
505 ConfigAccess,\r
506 NULL\r
507 );\r
508 if (EFI_ERROR (Status)) {\r
509 return Status;\r
510 }\r
511 PrivateData->DriverHandle = DriverHandle;\r
512\r
513 //\r
514 // Publish the HII package list\r
515 //\r
516 HiiHandle = HiiAddPackages (\r
517 &gVlanConfigFormSetGuid,\r
518 DriverHandle,\r
519 VlanConfigDxeStrings,\r
520 VlanConfigBin,\r
521 NULL\r
522 );\r
523 if (HiiHandle == NULL) {\r
524 return EFI_OUT_OF_RESOURCES;\r
525 }\r
526 PrivateData->HiiHandle = HiiHandle;\r
527\r
528 //\r
529 // Update formset title help string.\r
530 //\r
531 MacString = NULL;\r
532 Status = NetLibGetMacString (PrivateData->ControllerHandle, PrivateData->ImageHandle, &MacString);\r
533 if (EFI_ERROR (Status)) {\r
534 return Status;\r
535 }\r
536 PrivateData->MacString = MacString;\r
537\r
538 StrCpy (Str, L"VLAN Configuration (MAC:");\r
539 StrnCat (Str, MacString, sizeof (EFI_MAC_ADDRESS) * 2);\r
540 StrCat (Str, L")");\r
541 HiiSetString (\r
542 HiiHandle,\r
543 STRING_TOKEN (STR_VLAN_FORM_SET_TITLE_HELP),\r
544 Str,\r
545 NULL\r
546 );\r
547\r
548 //\r
549 // Update form title help string.\r
550 //\r
551 HiiSetString (\r
552 HiiHandle,\r
553 STRING_TOKEN (STR_VLAN_FORM_HELP),\r
554 Str,\r
555 NULL\r
556 );\r
557\r
558 return EFI_SUCCESS;\r
559}\r
560\r
561/**\r
562 This function remove the VLAN configuration Form for a network device. The\r
563 child handle for HII Config Access protocol will be destroyed.\r
564\r
565 @param[in, out] PrivateData Points to VLAN configuration private data.\r
566\r
567**/\r
568VOID\r
569UninstallVlanConfigForm (\r
570 IN OUT VLAN_CONFIG_PRIVATE_DATA *PrivateData\r
571 )\r
572{\r
573 //\r
574 // Free MAC string\r
575 //\r
576 if (PrivateData->MacString != NULL) {\r
577 FreePool (PrivateData->MacString);\r
578 PrivateData->MacString = NULL;\r
579 }\r
580\r
581 //\r
582 // Uninstall HII package list\r
583 //\r
584 if (PrivateData->HiiHandle != NULL) {\r
585 HiiRemovePackages (PrivateData->HiiHandle);\r
586 PrivateData->HiiHandle = NULL;\r
587 }\r
588\r
589 //\r
590 // Uninstall HII Config Access Protocol\r
591 //\r
592 if (PrivateData->DriverHandle != NULL) {\r
593 gBS->UninstallMultipleProtocolInterfaces (\r
594 PrivateData->DriverHandle,\r
595 &gEfiDevicePathProtocolGuid,\r
596 PrivateData->ChildDevicePath,\r
597 &gEfiHiiConfigAccessProtocolGuid,\r
598 &PrivateData->ConfigAccess,\r
599 NULL\r
600 );\r
601 PrivateData->DriverHandle = NULL;\r
602\r
603 if (PrivateData->ChildDevicePath != NULL) {\r
604 FreePool (PrivateData->ChildDevicePath);\r
605 PrivateData->ChildDevicePath = NULL;\r
606 }\r
607 }\r
608}\r
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