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779ae357 1/** @file\r
2 HII Config Access protocol implementation of VLAN configuration module.\r
3\r
083f7c69 4Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>\r
e5eed7d3 5This program and the accompanying materials\r
779ae357 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
18EFI_GUID mVlanFormSetGuid = VLAN_CONFIG_PRIVATE_GUID;\r
19CHAR16 mVlanStorageName[] = L"VlanNvData";\r
20EFI_HII_CONFIG_ROUTING_PROTOCOL *mHiiConfigRouting = NULL;\r
21\r
22VLAN_CONFIG_PRIVATE_DATA mVlanConfigPrivateDateTemplate = {\r
23 VLAN_CONFIG_PRIVATE_DATA_SIGNATURE,\r
24 {\r
25 VlanExtractConfig,\r
26 VlanRouteConfig,\r
27 VlanCallback\r
28 }\r
29};\r
30\r
31VENDOR_DEVICE_PATH mHiiVendorDevicePathNode = {\r
32 {\r
33 HARDWARE_DEVICE_PATH,\r
34 HW_VENDOR_DP,\r
35 {\r
36 (UINT8) (sizeof (VENDOR_DEVICE_PATH)),\r
37 (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)\r
38 }\r
39 },\r
40 VLAN_CONFIG_PRIVATE_GUID\r
41};\r
42\r
43/**\r
44 This function allows a caller to extract the current configuration for one\r
45 or more named elements from the target driver.\r
46\r
47 @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
48 @param[in] Request A null-terminated Unicode string in\r
49 <ConfigRequest> format.\r
50 @param[out] Progress On return, points to a character in the Request\r
51 string. Points to the string's null terminator if\r
52 request was successful. Points to the most recent\r
53 '&' before the first failing name/value pair (or\r
54 the beginning of the string if the failure is in\r
55 the first name/value pair) if the request was not\r
56 successful.\r
57 @param[out] Results A null-terminated Unicode string in\r
58 <ConfigAltResp> format which has all values filled\r
59 in for the names in the Request string. String to\r
60 be allocated by the called function.\r
61\r
62 @retval EFI_SUCCESS The Results is filled with the requested values.\r
63 @retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.\r
5a157365 64 @retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.\r
779ae357 65 @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r
66 driver.\r
67\r
68**/\r
69EFI_STATUS\r
70EFIAPI\r
71VlanExtractConfig (\r
72 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
73 IN CONST EFI_STRING Request,\r
74 OUT EFI_STRING *Progress,\r
75 OUT EFI_STRING *Results\r
76 )\r
77{\r
59aefb7e
LG		 78 EFI_STATUS Status;\r
79 UINTN BufferSize;\r
80 VLAN_CONFIGURATION Configuration;\r
81 VLAN_CONFIG_PRIVATE_DATA *PrivateData;\r
82 EFI_STRING ConfigRequestHdr;\r
83 EFI_STRING ConfigRequest;\r
84 BOOLEAN AllocatedRequest;\r
85 UINTN Size;\r
86\r
87 if (Progress == NULL || Results == NULL) {\r
779ae357 88 return EFI_INVALID_PARAMETER;\r
89 }\r
90\r
59aefb7e
LG		 91 *Progress = Request;\r
92 if ((Request != NULL) && !HiiIsConfigHdrMatch (Request, &mVlanFormSetGuid, mVlanStorageName)) {\r
93 return EFI_NOT_FOUND;\r
94 }\r
95\r
96 ConfigRequestHdr = NULL;\r
97 ConfigRequest = NULL;\r
98 AllocatedRequest = FALSE;\r
99 Size = 0;\r
100\r
779ae357 101 //\r
102 // Retrieve the pointer to the UEFI HII Config Routing Protocol\r
103 //\r
104 if (mHiiConfigRouting == NULL) {\r
105 gBS->LocateProtocol (&gEfiHiiConfigRoutingProtocolGuid, NULL, (VOID **) &mHiiConfigRouting);\r
106 }\r
107 ASSERT (mHiiConfigRouting != NULL);\r
108\r
109 //\r
110 // Convert buffer data to <ConfigResp> by helper function BlockToConfig()\r
111 //\r
59aefb7e 112 PrivateData = VLAN_CONFIG_PRIVATE_DATA_FROM_THIS (This);\r
779ae357 113 ZeroMem (&Configuration, sizeof (VLAN_CONFIGURATION));\r
5a157365 114 BufferSize = sizeof (Configuration);\r
59aefb7e
LG		 115 ConfigRequest = Request;\r
116 if ((Request == NULL) || (StrStr (Request, L"OFFSET") == NULL)) {\r
117 //\r
118 // Request has no request element, construct full request string.\r
119 // Allocate and fill a buffer large enough to hold the <ConfigHdr> template\r
120 // followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator\r
121 //\r
122 ConfigRequestHdr = HiiConstructConfigHdr (&mVlanFormSetGuid, mVlanStorageName, PrivateData->DriverHandle);\r
123 Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);\r
124 ConfigRequest = AllocateZeroPool (Size);\r
125 ASSERT (ConfigRequest != NULL);\r
126 AllocatedRequest = TRUE;\r
127 UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64)BufferSize);\r
128 FreePool (ConfigRequestHdr);\r
129 }\r
130\r
779ae357 131 Status = mHiiConfigRouting->BlockToConfig (\r
132 mHiiConfigRouting,\r
59aefb7e 133 ConfigRequest,\r
779ae357 134 (UINT8 *) &Configuration,\r
135 BufferSize,\r
136 Results,\r
137 Progress\r
138 );\r
59aefb7e
LG		 139 //\r
140 // Free the allocated config request string.\r
141 //\r
142 if (AllocatedRequest) {\r
143 FreePool (ConfigRequest);\r
144 ConfigRequest = NULL;\r
145 }\r
146 //\r
147 // Set Progress string to the original request string.\r
148 //\r
149 if (Request == NULL) {\r
150 *Progress = NULL;\r
151 } else if (StrStr (Request, L"OFFSET") == NULL) {\r
152 *Progress = Request + StrLen (Request);\r
153 }\r
154\r
779ae357 155 return Status;\r
156}\r
157\r
158\r
159/**\r
160 This function processes the results of changes in configuration.\r
161\r
162 @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
163 @param[in] Configuration A null-terminated Unicode string in <ConfigResp>\r
164 format.\r
165 @param[out] Progress A pointer to a string filled in with the offset of\r
166 the most recent '&' before the first failing\r
167 name/value pair (or the beginning of the string if\r
168 the failure is in the first name/value pair) or\r
169 the terminating NULL if all was successful.\r
170\r
171 @retval EFI_SUCCESS The Results is processed successfully.\r
172 @retval EFI_INVALID_PARAMETER Configuration is NULL.\r
173 @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r
174 driver.\r
175\r
176**/\r
177EFI_STATUS\r
178EFIAPI\r
179VlanRouteConfig (\r
180 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
181 IN CONST EFI_STRING Configuration,\r
182 OUT EFI_STRING *Progress\r
183 )\r
184{\r
185 if (Configuration == NULL || Progress == NULL) {\r
186 return EFI_INVALID_PARAMETER;\r
187 }\r
188\r
189 *Progress = Configuration;\r
190 if (!HiiIsConfigHdrMatch (Configuration, &mVlanFormSetGuid, mVlanStorageName)) {\r
191 return EFI_NOT_FOUND;\r
192 }\r
193\r
194 *Progress = Configuration + StrLen (Configuration);\r
195 return EFI_SUCCESS;\r
196}\r
197\r
198/**\r
199 This function processes the results of changes in configuration.\r
200\r
201 @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
202 @param[in] Action Specifies the type of action taken by the browser.\r
203 @param[in] QuestionId A unique value which is sent to the original\r
204 exporting driver so that it can identify the type\r
205 of data to expect.\r
206 @param[in] Type The type of value for the question.\r
207 @param[in] Value A pointer to the data being sent to the original\r
208 exporting driver.\r
209 @param[out] ActionRequest On return, points to the action requested by the\r
210 callback function.\r
211\r
212 @retval EFI_SUCCESS The callback successfully handled the action.\r
213 @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the\r
214 variable and its data.\r
215 @retval EFI_DEVICE_ERROR The variable could not be saved.\r
216 @retval EFI_UNSUPPORTED The specified Action is not supported by the\r
217 callback.\r
218\r
219**/\r
220EFI_STATUS\r
221EFIAPI\r
222VlanCallback (\r
223 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
224 IN EFI_BROWSER_ACTION Action,\r
225 IN EFI_QUESTION_ID QuestionId,\r
226 IN UINT8 Type,\r
227 IN EFI_IFR_TYPE_VALUE *Value,\r
228 OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest\r
229 )\r
230{\r
231 VLAN_CONFIG_PRIVATE_DATA *PrivateData;\r
232 VLAN_CONFIGURATION *Configuration;\r
233 EFI_VLAN_CONFIG_PROTOCOL *VlanConfig;\r
234 UINTN Index;\r
235 EFI_HANDLE VlanHandle;\r
236\r
237 PrivateData = VLAN_CONFIG_PRIVATE_DATA_FROM_THIS (This);\r
238\r
239 if (Action == EFI_BROWSER_ACTION_FORM_OPEN) {\r
5adb8db7
LG		 240 if (QuestionId == VLAN_ADD_QUESTION_ID) {\r
241 //\r
242 // Update current VLAN list into Form when Form is opened.\r
243 // This will be done only in FORM_OPEN CallBack of question with VLAN_ADD_QUESTION_ID.\r
244 //\r
245 VlanUpdateForm (PrivateData);\r
246 }\r
247 return EFI_SUCCESS;\r
248 }\r
249\r
250 if (Action == EFI_BROWSER_ACTION_FORM_CLOSE) {\r
779ae357 251 //\r
5adb8db7 252 // Do nothing for UEFI FORM_CLOSE action\r
779ae357 253 //\r
779ae357 254 return EFI_SUCCESS;\r
255 }\r
256\r
083f7c69 257 if (Action == EFI_BROWSER_ACTION_CHANGING) {\r
779ae357 258 //\r
083f7c69 259 // Get Browser data\r
779ae357 260 //\r
083f7c69
ED		 261 Configuration = AllocateZeroPool (sizeof (VLAN_CONFIGURATION));\r
262 ASSERT (Configuration != NULL);\r
263 HiiGetBrowserData (&mVlanFormSetGuid, mVlanStorageName, sizeof (VLAN_CONFIGURATION), (UINT8 *) Configuration);\r
779ae357 264\r
083f7c69
ED		 265 VlanConfig = PrivateData->VlanConfig;\r
266\r
267 switch (QuestionId) {\r
268 case VLAN_ADD_QUESTION_ID:\r
779ae357 269 //\r
083f7c69 270 // Add a VLAN\r
779ae357 271 //\r
083f7c69
ED		 272 VlanConfig->Set (VlanConfig, Configuration->VlanId, Configuration->Priority);\r
273 VlanUpdateForm (PrivateData);\r
779ae357 274\r
083f7c69
ED		 275 //\r
276 // Connect the newly created VLAN device\r
277 //\r
278 VlanHandle = NetLibGetVlanHandle (PrivateData->ControllerHandle, Configuration->VlanId);\r
279 if (VlanHandle == NULL) {\r
779ae357 280 //\r
083f7c69 281 // There may be no child handle created for VLAN ID 0, connect the parent handle\r
779ae357 282 //\r
083f7c69 283 VlanHandle = PrivateData->ControllerHandle;\r
779ae357 284 }\r
083f7c69 285 gBS->ConnectController (VlanHandle, NULL, NULL, TRUE);\r
779ae357 286\r
779ae357 287 //\r
083f7c69 288 // Clear UI data\r
779ae357 289 //\r
083f7c69
ED		 290 *ActionRequest = EFI_BROWSER_ACTION_REQUEST_SUBMIT;\r
291 Configuration->VlanId = 0;\r
292 Configuration->Priority = 0;\r
293 break;\r
779ae357 294\r
083f7c69
ED		 295 case VLAN_REMOVE_QUESTION_ID:\r
296 //\r
297 // Remove VLAN\r
298 //\r
299 ASSERT (PrivateData->NumberOfVlan <= MAX_VLAN_NUMBER);\r
300 for (Index = 0; Index < PrivateData->NumberOfVlan; Index++) {\r
301 if (Configuration->VlanList[Index] != 0) {\r
302 //\r
303 // Checkbox is selected, need remove this VLAN\r
304 //\r
305 VlanConfig->Remove (VlanConfig, PrivateData->VlanId[Index]);\r
306 }\r
307 }\r
779ae357 308\r
083f7c69
ED		 309 VlanUpdateForm (PrivateData);\r
310 if (PrivateData->NumberOfVlan == 0) {\r
311 //\r
312 // No VLAN device now, connect the physical NIC handle.\r
313 // Note: PrivateData->NumberOfVlan has been updated by VlanUpdateForm()\r
314 //\r
315 gBS->ConnectController (PrivateData->ControllerHandle, NULL, NULL, TRUE);\r
316 }\r
317\r
318 *ActionRequest = EFI_BROWSER_ACTION_REQUEST_SUBMIT;\r
319 ZeroMem (Configuration->VlanList, MAX_VLAN_NUMBER);\r
320 break;\r
321\r
322 default:\r
323 break;\r
324 }\r
325\r
326 HiiSetBrowserData (&mVlanFormSetGuid, mVlanStorageName, sizeof (VLAN_CONFIGURATION), (UINT8 *) Configuration, NULL);\r
327 FreePool (Configuration);\r
328 return EFI_SUCCESS;\r
779ae357 329 }\r
330\r
083f7c69
ED		 331 //\r
332 // All other action return unsupported.\r
333 //\r
334 return EFI_UNSUPPORTED;\r
779ae357 335}\r
336\r
337\r
338/**\r
339 This function update VLAN list in the VLAN configuration Form.\r
340\r
341 @param[in, out] PrivateData Points to VLAN configuration private data.\r
342\r
343**/\r
344VOID\r
345VlanUpdateForm (\r
346 IN OUT VLAN_CONFIG_PRIVATE_DATA *PrivateData\r
347 )\r
348{\r
349 EFI_VLAN_CONFIG_PROTOCOL *VlanConfig;\r
350 UINT16 NumberOfVlan;\r
351 UINTN Index;\r
352 EFI_VLAN_FIND_DATA *VlanData;\r
353 VOID *StartOpCodeHandle;\r
354 EFI_IFR_GUID_LABEL *StartLabel;\r
355 VOID *EndOpCodeHandle;\r
356 EFI_IFR_GUID_LABEL *EndLabel;\r
357 CHAR16 *String;\r
358 CHAR16 VlanStr[30];\r
359 CHAR16 VlanIdStr[6];\r
360 UINTN DigitalCount;\r
361 EFI_STRING_ID StringId;\r
362\r
363 //\r
364 // Find current VLAN configuration\r
365 //\r
366 VlanData = NULL;\r
367 NumberOfVlan = 0;\r
368 VlanConfig = PrivateData->VlanConfig;\r
369 VlanConfig->Find (VlanConfig, NULL, &NumberOfVlan, &VlanData);\r
370\r
371 //\r
372 // Update VLAN configuration in PrivateData\r
373 //\r
374 if (NumberOfVlan > MAX_VLAN_NUMBER) {\r
375 NumberOfVlan = MAX_VLAN_NUMBER;\r
376 }\r
377 PrivateData->NumberOfVlan = NumberOfVlan;\r
378\r
379 //\r
380 // Init OpCode Handle\r
381 //\r
382 StartOpCodeHandle = HiiAllocateOpCodeHandle ();\r
383 ASSERT (StartOpCodeHandle != NULL);\r
384\r
385 EndOpCodeHandle = HiiAllocateOpCodeHandle ();\r
386 ASSERT (EndOpCodeHandle != NULL);\r
387\r
388 //\r
389 // Create Hii Extend Label OpCode as the start opcode\r
390 //\r
391 StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r
392 StartOpCodeHandle,\r
393 &gEfiIfrTianoGuid,\r
394 NULL,\r
395 sizeof (EFI_IFR_GUID_LABEL)\r
396 );\r
397 StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r
398 StartLabel->Number = LABEL_VLAN_LIST;\r
399\r
400 //\r
401 // Create Hii Extend Label OpCode as the end opcode\r
402 //\r
403 EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r
404 EndOpCodeHandle,\r
405 &gEfiIfrTianoGuid,\r
406 NULL,\r
407 sizeof (EFI_IFR_GUID_LABEL)\r
408 );\r
409 EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r
410 EndLabel->Number = LABEL_END;\r
411\r
412 ZeroMem (PrivateData->VlanId, MAX_VLAN_NUMBER);\r
413 for (Index = 0; Index < NumberOfVlan; Index++) {\r
414 String = VlanStr;\r
415\r
416 StrCpy (String, L" VLAN ID:");\r
417 String += 10;\r
418 //\r
419 // Pad VlanId string up to 4 characters with space\r
420 //\r
421 DigitalCount = UnicodeValueToString (VlanIdStr, 0, VlanData[Index].VlanId, 5);\r
422 SetMem16 (String, (4 - DigitalCount) * sizeof (CHAR16), L' ');\r
423 StrCpy (String + 4 - DigitalCount, VlanIdStr);\r
424 String += 4;\r
425\r
426 StrCpy (String, L", Priority:");\r
427 String += 11;\r
428 String += UnicodeValueToString (String, 0, VlanData[Index].Priority, 4);\r
429 *String = 0;\r
430\r
431 StringId = HiiSetString (PrivateData->HiiHandle, 0, VlanStr, NULL);\r
432 ASSERT (StringId != 0);\r
433\r
434 HiiCreateCheckBoxOpCode (\r
435 StartOpCodeHandle,\r
436 (EFI_QUESTION_ID) (VLAN_LIST_VAR_OFFSET + Index),\r
437 VLAN_CONFIGURATION_VARSTORE_ID,\r
438 (UINT16) (VLAN_LIST_VAR_OFFSET + Index),\r
439 StringId,\r
440 STRING_TOKEN (STR_VLAN_VLAN_LIST_HELP),\r
441 0,\r
442 0,\r
443 NULL\r
444 );\r
445\r
446 //\r
447 // Save VLAN id to private data\r
448 //\r
449 PrivateData->VlanId[Index] = VlanData[Index].VlanId;\r
450 }\r
451\r
452 HiiUpdateForm (\r
453 PrivateData->HiiHandle, // HII handle\r
454 &mVlanFormSetGuid, // Formset GUID\r
455 VLAN_CONFIGURATION_FORM_ID, // Form ID\r
456 StartOpCodeHandle, // Label for where to insert opcodes\r
457 EndOpCodeHandle // Replace data\r
458 );\r
459\r
460 HiiFreeOpCodeHandle (StartOpCodeHandle);\r
461 HiiFreeOpCodeHandle (EndOpCodeHandle);\r
462\r
463 if (VlanData != NULL) {\r
464 FreePool (VlanData);\r
465 }\r
466}\r
467\r
468\r
469/**\r
470 This function publish the VLAN configuration Form for a network device. The\r
471 HII Config Access protocol will be installed on a child handle of the network\r
472 device.\r
473\r
474 @param[in, out] PrivateData Points to VLAN configuration private data.\r
475\r
476 @retval EFI_SUCCESS HII Form is installed for this network device.\r
477 @retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.\r
478 @retval Others Other errors as indicated.\r
479\r
480**/\r
481EFI_STATUS\r
482InstallVlanConfigForm (\r
483 IN OUT VLAN_CONFIG_PRIVATE_DATA *PrivateData\r
484 )\r
485{\r
486 EFI_STATUS Status;\r
487 EFI_HII_HANDLE HiiHandle;\r
488 EFI_HANDLE DriverHandle;\r
e2851998 489 CHAR16 Str[26 + sizeof (EFI_MAC_ADDRESS) * 2 + 1];\r
779ae357 490 CHAR16 *MacString;\r
491 EFI_DEVICE_PATH_PROTOCOL *ChildDevicePath;\r
492 EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r
493\r
494 //\r
495 // Create child handle and install HII Config Access Protocol\r
496 //\r
497 ChildDevicePath = AppendDevicePathNode (\r
498 PrivateData->ParentDevicePath,\r
499 (CONST EFI_DEVICE_PATH_PROTOCOL *) &mHiiVendorDevicePathNode\r
500 );\r
501 if (ChildDevicePath == NULL) {\r
502 return EFI_OUT_OF_RESOURCES;\r
503 }\r
504 PrivateData->ChildDevicePath = ChildDevicePath;\r
505\r
506 DriverHandle = NULL;\r
507 ConfigAccess = &PrivateData->ConfigAccess;\r
508 Status = gBS->InstallMultipleProtocolInterfaces (\r
509 &DriverHandle,\r
510 &gEfiDevicePathProtocolGuid,\r
511 ChildDevicePath,\r
512 &gEfiHiiConfigAccessProtocolGuid,\r
513 ConfigAccess,\r
514 NULL\r
515 );\r
516 if (EFI_ERROR (Status)) {\r
517 return Status;\r
518 }\r
519 PrivateData->DriverHandle = DriverHandle;\r
520\r
521 //\r
522 // Publish the HII package list\r
523 //\r
524 HiiHandle = HiiAddPackages (\r
525 &mVlanFormSetGuid,\r
526 DriverHandle,\r
527 VlanConfigDxeStrings,\r
528 VlanConfigBin,\r
529 NULL\r
530 );\r
531 if (HiiHandle == NULL) {\r
532 return EFI_OUT_OF_RESOURCES;\r
533 }\r
534 PrivateData->HiiHandle = HiiHandle;\r
535\r
536 //\r
3ddc4cf2 537 // Update formset title help string.\r
779ae357 538 //\r
539 MacString = NULL;\r
540 Status = NetLibGetMacString (PrivateData->ControllerHandle, PrivateData->ImageHandle, &MacString);\r
541 if (EFI_ERROR (Status)) {\r
542 return Status;\r
543 }\r
544 PrivateData->MacString = MacString;\r
545\r
546 StrCpy (Str, L"VLAN Configuration (MAC:");\r
1b2bf3ca 547 StrnCat (Str, MacString, sizeof (EFI_MAC_ADDRESS) * 2);\r
779ae357 548 StrCat (Str, L")");\r
549 HiiSetString (\r
550 HiiHandle,\r
c7f204db 551 STRING_TOKEN (STR_VLAN_FORM_SET_TITLE_HELP),\r
779ae357 552 Str,\r
553 NULL\r
554 );\r
555\r
556 //\r
3ddc4cf2 557 // Update form title help string.\r
779ae357 558 //\r
559 HiiSetString (\r
560 HiiHandle,\r
c7f204db 561 STRING_TOKEN (STR_VLAN_FORM_HELP),\r
779ae357 562 Str,\r
563 NULL\r
564 );\r
565\r
566 return EFI_SUCCESS;\r
567}\r
568\r
569/**\r
570 This function remove the VLAN configuration Form for a network device. The\r
571 child handle for HII Config Access protocol will be destroyed.\r
572\r
573 @param[in, out] PrivateData Points to VLAN configuration private data.\r
574\r
575**/\r
576VOID\r
577UninstallVlanConfigForm (\r
578 IN OUT VLAN_CONFIG_PRIVATE_DATA *PrivateData\r
579 )\r
580{\r
581 //\r
582 // Free MAC string\r
583 //\r
584 if (PrivateData->MacString != NULL) {\r
585 FreePool (PrivateData->MacString);\r
586 PrivateData->MacString = NULL;\r
587 }\r
588\r
589 //\r
590 // Uninstall HII package list\r
591 //\r
592 if (PrivateData->HiiHandle != NULL) {\r
593 HiiRemovePackages (PrivateData->HiiHandle);\r
594 PrivateData->HiiHandle = NULL;\r
595 }\r
596\r
597 //\r
598 // Uninstall HII Config Access Protocol\r
599 //\r
600 if (PrivateData->DriverHandle != NULL) {\r
601 gBS->UninstallMultipleProtocolInterfaces (\r
602 PrivateData->DriverHandle,\r
603 &gEfiDevicePathProtocolGuid,\r
604 PrivateData->ChildDevicePath,\r
605 &gEfiHiiConfigAccessProtocolGuid,\r
606 &PrivateData->ConfigAccess,\r
607 NULL\r
608 );\r
609 PrivateData->DriverHandle = NULL;\r
610\r
611 if (PrivateData->ChildDevicePath != NULL) {\r
612 FreePool (PrivateData->ChildDevicePath);\r
613 PrivateData->ChildDevicePath = NULL;\r
614 }\r
615 }\r
616}\r
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