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dd51a993 | 1 | /** @file\r |
2 | HII Library implementation that uses DXE protocols and services.\r | |
3 | \r | |
4 | Copyright (c) 2006, Intel Corporation<BR>\r | |
bad46384 | 5 | All rights reserved. This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
dd51a993 | 9 | \r |
bad46384 | 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
dd51a993 | 12 | \r |
dd51a993 | 13 | **/\r |
14 | \r | |
7d582d6b | 15 | #include "InternalHiiLib.h"\r |
16 | \r | |
c344685c | 17 | CONST EFI_HII_DATABASE_PROTOCOL *mHiiDatabaseProt;\r |
18 | CONST EFI_HII_STRING_PROTOCOL *mHiiStringProt;\r | |
54cf8780 | 19 | BOOLEAN mHiiProtocolsInitialized = FALSE;\r |
20 | \r | |
7d582d6b | 21 | \r |
e52c5a9f | 22 | /**\r |
7d582d6b | 23 | \r |
54cf8780 | 24 | This function locate Hii relative protocols for later usage.\r |
25 | \r | |
e52c5a9f | 26 | **/\r |
54cf8780 | 27 | VOID\r |
28 | LocateHiiProtocols (\r | |
29 | VOID\r | |
7d582d6b | 30 | )\r |
31 | {\r | |
54cf8780 | 32 | EFI_STATUS Status;\r |
33 | \r | |
34 | if (mHiiProtocolsInitialized) {\r | |
35 | return;\r | |
36 | }\r | |
37 | \r | |
38 | Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **) &mHiiDatabaseProt);\r | |
7d582d6b | 39 | ASSERT_EFI_ERROR (Status);\r |
7d582d6b | 40 | \r |
54cf8780 | 41 | Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &mHiiStringProt);\r |
7d582d6b | 42 | ASSERT_EFI_ERROR (Status);\r |
7d582d6b | 43 | \r |
54cf8780 | 44 | mHiiProtocolsInitialized = TRUE;\r |
7d582d6b | 45 | }\r |
46 | \r | |
7d582d6b | 47 | \r |
48 | \r | |
ad1b3619 | 49 | /**\r |
50 | This funciton build the package list based on the package number,\r | |
51 | the GUID of the package list and the list of pointer which point to\r | |
52 | package header that defined by UEFI VFR compiler and StringGather\r | |
53 | tool.\r | |
54 | \r | |
55 | If there is not enough resource for the new package list,\r | |
56 | the function will ASSERT.\r | |
57 | \r | |
58 | @param NumberOfPackages The number of packages be \r | |
59 | @param GuidId The GUID for the package list to be generated.\r | |
60 | @param Marker The variable argument list. Each entry represent a specific package header that is\r | |
61 | generated by VFR compiler and StrGather tool. The first 4 bytes is a UINT32 value\r | |
62 | that indicate the overall length of the package.\r | |
63 | \r | |
64 | @return The pointer to the package list header.\r | |
65 | \r | |
66 | **/\r | |
7d582d6b | 67 | EFI_HII_PACKAGE_LIST_HEADER *\r |
68 | InternalHiiLibPreparePackages (\r | |
69 | IN UINTN NumberOfPackages,\r | |
ad1b3619 | 70 | IN CONST EFI_GUID *GuidId,\r |
7d582d6b | 71 | VA_LIST Marker\r |
72 | )\r | |
73 | {\r | |
74 | EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;\r | |
75 | UINT8 *PackageListData;\r | |
76 | UINT32 PackageListLength;\r | |
77 | UINT32 PackageLength;\r | |
78 | EFI_HII_PACKAGE_HEADER PackageHeader;\r | |
79 | UINT8 *PackageArray;\r | |
80 | UINTN Index;\r | |
81 | VA_LIST MarkerBackup;\r | |
82 | \r | |
83 | PackageListLength = sizeof (EFI_HII_PACKAGE_LIST_HEADER);\r | |
84 | \r | |
85 | MarkerBackup = Marker;\r | |
86 | \r | |
87 | for (Index = 0; Index < NumberOfPackages; Index++) {\r | |
88 | CopyMem (&PackageLength, VA_ARG (Marker, VOID *), sizeof (UINT32));\r | |
89 | PackageListLength += (PackageLength - sizeof (UINT32));\r | |
90 | }\r | |
91 | \r | |
92 | //\r | |
93 | // Include the lenght of EFI_HII_PACKAGE_END\r | |
94 | //\r | |
95 | PackageListLength += sizeof (EFI_HII_PACKAGE_HEADER);\r | |
96 | PackageListHeader = AllocateZeroPool (PackageListLength);\r | |
97 | ASSERT (PackageListHeader != NULL);\r | |
98 | CopyMem (&PackageListHeader->PackageListGuid, GuidId, sizeof (EFI_GUID));\r | |
99 | PackageListHeader->PackageLength = PackageListLength;\r | |
100 | \r | |
101 | PackageListData = ((UINT8 *) PackageListHeader) + sizeof (EFI_HII_PACKAGE_LIST_HEADER);\r | |
102 | \r | |
103 | Marker = MarkerBackup;\r | |
104 | for (Index = 0; Index < NumberOfPackages; Index++) {\r | |
105 | PackageArray = (UINT8 *) VA_ARG (Marker, VOID *);\r | |
106 | CopyMem (&PackageLength, PackageArray, sizeof (UINT32));\r | |
107 | PackageLength -= sizeof (UINT32);\r | |
108 | PackageArray += sizeof (UINT32);\r | |
109 | CopyMem (PackageListData, PackageArray, PackageLength);\r | |
110 | PackageListData += PackageLength;\r | |
111 | }\r | |
112 | \r | |
113 | //\r | |
114 | // Append EFI_HII_PACKAGE_END\r | |
115 | //\r | |
116 | PackageHeader.Type = EFI_HII_PACKAGE_END;\r | |
117 | PackageHeader.Length = sizeof (EFI_HII_PACKAGE_HEADER);\r | |
118 | CopyMem (PackageListData, &PackageHeader, PackageHeader.Length);\r | |
119 | \r | |
120 | return PackageListHeader;\r | |
121 | }\r | |
122 | \r | |
ad1b3619 | 123 | /**\r |
124 | Assemble EFI_HII_PACKAGE_LIST according to the passed in packages.\r | |
125 | \r | |
126 | If GuidId is NULL, then ASSERT.\r | |
127 | If not enough resource to complete the operation, then ASSERT.\r | |
128 | \r | |
129 | @param NumberOfPackages Number of packages.\r | |
130 | @param GuidId Package GUID.\r | |
131 | @param ... Variable argument list for packages to be assembled.\r | |
132 | \r | |
133 | @return EFI_HII_PACKAGE_LIST_HEADER Pointer of EFI_HII_PACKAGE_LIST_HEADER. The function will ASSERT if system has\r | |
134 | not enough resource to complete the operation.\r | |
135 | \r | |
136 | **/\r | |
7d582d6b | 137 | EFI_HII_PACKAGE_LIST_HEADER *\r |
138 | EFIAPI\r | |
139 | HiiLibPreparePackageList (\r | |
140 | IN UINTN NumberOfPackages,\r | |
141 | IN CONST EFI_GUID *GuidId,\r | |
142 | ...\r | |
143 | )\r | |
7d582d6b | 144 | {\r |
145 | EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;\r | |
146 | VA_LIST Marker;\r | |
147 | \r | |
e52c5a9f | 148 | ASSERT (GuidId != NULL);\r |
149 | \r | |
7d582d6b | 150 | VA_START (Marker, GuidId);\r |
151 | PackageListHeader = InternalHiiLibPreparePackages (NumberOfPackages, GuidId, Marker);\r | |
152 | VA_END (Marker);\r | |
153 | \r | |
154 | return PackageListHeader;\r | |
155 | }\r | |
156 | \r | |
bad46384 | 157 | \r |
ad1b3619 | 158 | /**\r |
159 | This function allocates pool for an EFI_HII_PACKAGE_LIST structure\r | |
160 | with additional space that is big enough to host all packages described by the variable \r | |
161 | argument list of package pointers. The allocated structure is initialized using NumberOfPackages, \r | |
162 | GuidId, and the variable length argument list of package pointers.\r | |
163 | \r | |
164 | Then, EFI_HII_PACKAGE_LIST will be register to the default System HII Database. The\r | |
165 | Handle to the newly registered Package List is returned throught HiiHandle.\r | |
166 | \r | |
167 | If HiiHandle is NULL, then ASSERT.\r | |
168 | \r | |
169 | @param NumberOfPackages The number of HII packages to register.\r | |
170 | @param GuidId Package List GUID ID.\r | |
171 | @param DriverHandle Optional. If not NULL, the DriverHandle on which an instance of DEVICE_PATH_PROTOCOL is installed.\r | |
172 | This DriverHandle uniquely defines the device that the added packages are associated with.\r | |
173 | @param HiiHandle On output, the HiiHandle is update with the handle which can be used to retrieve the Package \r | |
174 | List later. If the functions failed to add the package to the default HII database, this value will\r | |
175 | be set to NULL.\r | |
176 | @param ... The variable argument list describing all HII Package.\r | |
177 | \r | |
178 | @return EFI_SUCCESS If the packages are successfully added to the default HII database.\r | |
179 | @return EFI_OUT_OF_RESOURCE Not enough resource to complete the operation.\r | |
180 | \r | |
181 | **/\r | |
7d582d6b | 182 | EFI_STATUS\r |
183 | EFIAPI\r | |
e52c5a9f | 184 | HiiLibAddPackages (\r |
7d582d6b | 185 | IN UINTN NumberOfPackages,\r |
186 | IN CONST EFI_GUID *GuidId,\r | |
187 | IN EFI_HANDLE DriverHandle, OPTIONAL\r | |
2a10d874 | 188 | OUT EFI_HII_HANDLE *HiiHandle,\r |
7d582d6b | 189 | ...\r |
190 | )\r | |
191 | {\r | |
192 | VA_LIST Args;\r | |
193 | EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;\r | |
194 | EFI_STATUS Status;\r | |
195 | \r | |
e52c5a9f | 196 | ASSERT (HiiHandle != NULL);\r |
7d582d6b | 197 | \r |
54cf8780 | 198 | LocateHiiProtocols ();\r |
199 | \r | |
7d582d6b | 200 | VA_START (Args, HiiHandle);\r |
201 | PackageListHeader = InternalHiiLibPreparePackages (NumberOfPackages, GuidId, Args);\r | |
202 | \r | |
203 | Status = mHiiDatabaseProt->NewPackageList (mHiiDatabaseProt, PackageListHeader, DriverHandle, HiiHandle);\r | |
204 | if (HiiHandle != NULL) {\r | |
205 | if (EFI_ERROR (Status)) {\r | |
206 | *HiiHandle = NULL;\r | |
207 | }\r | |
208 | }\r | |
209 | \r | |
210 | FreePool (PackageListHeader);\r | |
211 | VA_END (Args);\r | |
212 | \r | |
213 | return Status;\r | |
214 | }\r | |
215 | \r | |
ad1b3619 | 216 | /**\r |
217 | Removes a package list from the default HII database.\r | |
218 | \r | |
219 | If HiiHandle is NULL, then ASSERT.\r | |
220 | If HiiHandle is not a valid EFI_HII_HANDLE in the default HII database, then ASSERT.\r | |
221 | \r | |
222 | @param HiiHandle The handle that was previously registered to the data base that is requested for removal.\r | |
223 | List later.\r | |
224 | \r | |
225 | @return VOID\r | |
226 | \r | |
227 | **/\r | |
e52c5a9f | 228 | VOID\r |
7d582d6b | 229 | EFIAPI\r |
e52c5a9f | 230 | HiiLibRemovePackages (\r |
7d582d6b | 231 | IN EFI_HII_HANDLE HiiHandle\r |
232 | )\r | |
233 | {\r | |
e52c5a9f | 234 | EFI_STATUS Status;\r |
e52c5a9f | 235 | ASSERT (HiiHandle != NULL);\r |
54cf8780 | 236 | \r |
237 | LocateHiiProtocols ();\r | |
238 | \r | |
e52c5a9f | 239 | Status = mHiiDatabaseProt->RemovePackageList (mHiiDatabaseProt, HiiHandle);\r |
240 | ASSERT_EFI_ERROR (Status);\r | |
7d582d6b | 241 | }\r |
242 | \r | |
e52c5a9f | 243 | \r |
ad1b3619 | 244 | /**\r |
245 | Determines the handles that are currently active in the database.\r | |
246 | It's the caller's responsibility to free handle buffer.\r | |
247 | \r | |
248 | If HandleBufferLength is NULL, then ASSERT.\r | |
249 | If HiiHandleBuffer is NULL, then ASSERT.\r | |
250 | \r | |
251 | @param HandleBufferLength On input, a pointer to the length of the handle\r | |
252 | buffer. On output, the length of the handle buffer\r | |
253 | that is required for the handles found.\r | |
254 | @param HiiHandleBuffer Pointer to an array of Hii Handles returned.\r | |
255 | \r | |
256 | @retval EFI_SUCCESS Get an array of Hii Handles successfully.\r | |
257 | \r | |
258 | **/\r | |
7d582d6b | 259 | EFI_STATUS\r |
260 | EFIAPI\r | |
e52c5a9f | 261 | HiiLibGetHiiHandles (\r |
262 | IN OUT UINTN *HandleBufferLength,\r | |
263 | OUT EFI_HII_HANDLE **HiiHandleBuffer\r | |
7d582d6b | 264 | )\r |
265 | {\r | |
e52c5a9f | 266 | UINTN BufferLength;\r |
7d582d6b | 267 | EFI_STATUS Status;\r |
7d582d6b | 268 | \r |
e52c5a9f | 269 | ASSERT (HandleBufferLength != NULL);\r |
270 | ASSERT (HiiHandleBuffer != NULL);\r | |
7d582d6b | 271 | \r |
e52c5a9f | 272 | BufferLength = 0;\r |
7d582d6b | 273 | \r |
54cf8780 | 274 | LocateHiiProtocols ();\r |
275 | \r | |
e52c5a9f | 276 | //\r |
277 | // Try to find the actual buffer size for HiiHandle Buffer.\r | |
278 | //\r | |
279 | Status = mHiiDatabaseProt->ListPackageLists (\r | |
280 | mHiiDatabaseProt,\r | |
281 | EFI_HII_PACKAGE_TYPE_ALL,\r | |
7d582d6b | 282 | NULL,\r |
e52c5a9f | 283 | &BufferLength,\r |
284 | *HiiHandleBuffer\r | |
7d582d6b | 285 | );\r |
7d582d6b | 286 | \r |
e52c5a9f | 287 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
288 | *HiiHandleBuffer = AllocateZeroPool (BufferLength);\r | |
289 | Status = mHiiDatabaseProt->ListPackageLists (\r | |
290 | mHiiDatabaseProt,\r | |
291 | EFI_HII_PACKAGE_TYPE_ALL,\r | |
292 | NULL,\r | |
293 | &BufferLength,\r | |
294 | *HiiHandleBuffer\r | |
295 | );\r | |
296 | //\r | |
297 | // we should not fail here.\r | |
298 | //\r | |
299 | ASSERT_EFI_ERROR (Status);\r | |
7d582d6b | 300 | }\r |
301 | \r | |
e52c5a9f | 302 | *HandleBufferLength = BufferLength;\r |
7d582d6b | 303 | \r |
304 | return Status;\r | |
305 | }\r | |
306 | \r | |
ad1b3619 | 307 | /**\r |
308 | Extract Hii package list GUID for given HII handle.\r | |
309 | \r | |
310 | If HiiHandle could not be found in the default HII database, then ASSERT.\r | |
311 | If Guid is NULL, then ASSERT.\r | |
312 | \r | |
313 | @param Handle Hii handle\r | |
314 | @param Guid Package list GUID\r | |
315 | \r | |
316 | @retval EFI_SUCCESS Successfully extract GUID from Hii database.\r | |
317 | \r | |
318 | **/\r | |
7d582d6b | 319 | EFI_STATUS\r |
dd51a993 | 320 | EFIAPI\r |
e52c5a9f | 321 | HiiLibExtractGuidFromHiiHandle (\r |
322 | IN EFI_HII_HANDLE Handle,\r | |
323 | OUT EFI_GUID *Guid\r | |
7d582d6b | 324 | )\r |
325 | {\r | |
326 | EFI_STATUS Status;\r | |
e52c5a9f | 327 | UINTN BufferSize;\r |
328 | EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;\r | |
7d582d6b | 329 | \r |
e52c5a9f | 330 | ASSERT (Guid != NULL);\r |
7d582d6b | 331 | \r |
e52c5a9f | 332 | //\r |
333 | // Get HII PackageList\r | |
334 | //\r | |
335 | BufferSize = 0;\r | |
336 | HiiPackageList = NULL;\r | |
54cf8780 | 337 | \r |
338 | LocateHiiProtocols ();\r | |
339 | \r | |
e52c5a9f | 340 | Status = mHiiDatabaseProt->ExportPackageLists (mHiiDatabaseProt, Handle, &BufferSize, HiiPackageList);\r |
341 | ASSERT (Status != EFI_NOT_FOUND);\r | |
342 | \r | |
343 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
344 | HiiPackageList = AllocatePool (BufferSize);\r | |
345 | ASSERT (HiiPackageList != NULL);\r | |
7d582d6b | 346 | \r |
e52c5a9f | 347 | Status = mHiiDatabaseProt->ExportPackageLists (mHiiDatabaseProt, Handle, &BufferSize, HiiPackageList);\r |
7d582d6b | 348 | }\r |
7d582d6b | 349 | if (EFI_ERROR (Status)) {\r |
350 | return Status;\r | |
351 | }\r | |
352 | \r | |
e52c5a9f | 353 | //\r |
354 | // Extract GUID\r | |
355 | //\r | |
356 | CopyMem (Guid, &HiiPackageList->PackageListGuid, sizeof (EFI_GUID));\r | |
7d582d6b | 357 | \r |
e52c5a9f | 358 | gBS->FreePool (HiiPackageList);\r |
7d582d6b | 359 | \r |
360 | return EFI_SUCCESS;\r | |
361 | }\r | |
362 | \r | |
ad1b3619 | 363 | /**\r |
364 | Find HII Handle in the default HII database associated with given Device Path.\r | |
365 | \r | |
366 | If DevicePath is NULL, then ASSERT.\r | |
367 | \r | |
368 | @param DevicePath Device Path associated with the HII package list\r | |
369 | handle.\r | |
370 | \r | |
371 | @retval Handle HII package list Handle associated with the Device\r | |
372 | Path.\r | |
373 | @retval NULL Hii Package list handle is not found.\r | |
374 | \r | |
375 | **/\r | |
e52c5a9f | 376 | EFI_HII_HANDLE\r |
377 | EFIAPI\r | |
378 | HiiLibDevicePathToHiiHandle (\r | |
379 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
7d582d6b | 380 | )\r |
7d582d6b | 381 | {\r |
e52c5a9f | 382 | EFI_STATUS Status;\r |
383 | EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;\r | |
384 | UINTN BufferSize;\r | |
385 | UINTN HandleCount;\r | |
386 | UINTN Index;\r | |
387 | EFI_HANDLE *Handles;\r | |
388 | EFI_HANDLE Handle;\r | |
389 | UINTN Size;\r | |
390 | EFI_HANDLE DriverHandle;\r | |
391 | EFI_HII_HANDLE *HiiHandles;\r | |
392 | EFI_HII_HANDLE HiiHandle;\r | |
7d582d6b | 393 | \r |
e52c5a9f | 394 | ASSERT (DevicePath != NULL);\r |
7d582d6b | 395 | \r |
dd51a993 | 396 | //\r |
e52c5a9f | 397 | // Locate Device Path Protocol handle buffer\r |
7d582d6b | 398 | //\r |
e52c5a9f | 399 | Status = gBS->LocateHandleBuffer (\r |
400 | ByProtocol,\r | |
401 | &gEfiDevicePathProtocolGuid,\r | |
7d582d6b | 402 | NULL,\r |
e52c5a9f | 403 | &HandleCount,\r |
404 | &Handles\r | |
7d582d6b | 405 | );\r |
406 | if (EFI_ERROR (Status)) {\r | |
e52c5a9f | 407 | return NULL;\r |
7d582d6b | 408 | }\r |
409 | \r | |
410 | //\r | |
e52c5a9f | 411 | // Search Driver Handle by Device Path\r |
7d582d6b | 412 | //\r |
e52c5a9f | 413 | DriverHandle = NULL;\r |
414 | BufferSize = GetDevicePathSize (DevicePath);\r | |
415 | for(Index = 0; Index < HandleCount; Index++) {\r | |
416 | Handle = Handles[Index];\r | |
417 | gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, (VOID **) &TmpDevicePath);\r | |
418 | \r | |
419 | //\r | |
420 | // Check whether DevicePath match\r | |
421 | //\r | |
422 | Size = GetDevicePathSize (TmpDevicePath);\r | |
423 | if ((Size == BufferSize) && CompareMem (DevicePath, TmpDevicePath, Size) == 0) {\r | |
424 | DriverHandle = Handle;\r | |
425 | break;\r | |
426 | }\r | |
7d582d6b | 427 | }\r |
e52c5a9f | 428 | gBS->FreePool (Handles);\r |
429 | \r | |
430 | if (DriverHandle == NULL) {\r | |
431 | return NULL;\r | |
7d582d6b | 432 | }\r |
433 | \r | |
54cf8780 | 434 | LocateHiiProtocols ();\r |
435 | \r | |
bad46384 | 436 | //\r |
e52c5a9f | 437 | // Retrieve all Hii Handles from HII database\r |
7d582d6b | 438 | //\r |
e52c5a9f | 439 | BufferSize = 0x1000;\r |
440 | HiiHandles = AllocatePool (BufferSize);\r | |
441 | ASSERT (HiiHandles != NULL);\r | |
442 | Status = mHiiDatabaseProt->ListPackageLists (\r | |
443 | mHiiDatabaseProt,\r | |
444 | EFI_HII_PACKAGE_TYPE_ALL,\r | |
445 | NULL,\r | |
446 | &BufferSize,\r | |
447 | HiiHandles\r | |
448 | );\r | |
449 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
450 | gBS->FreePool (HiiHandles);\r | |
451 | HiiHandles = AllocatePool (BufferSize);\r | |
452 | ASSERT (HiiHandles != NULL);\r | |
453 | \r | |
454 | Status = mHiiDatabaseProt->ListPackageLists (\r | |
455 | mHiiDatabaseProt,\r | |
456 | EFI_HII_PACKAGE_TYPE_ALL,\r | |
457 | NULL,\r | |
458 | &BufferSize,\r | |
459 | HiiHandles\r | |
460 | );\r | |
461 | }\r | |
7d582d6b | 462 | \r |
e52c5a9f | 463 | if (EFI_ERROR (Status)) {\r |
464 | gBS->FreePool (HiiHandles);\r | |
465 | return NULL;\r | |
466 | }\r | |
7d582d6b | 467 | \r |
e52c5a9f | 468 | //\r |
469 | // Search Hii Handle by Driver Handle\r | |
470 | //\r | |
471 | HiiHandle = NULL;\r | |
472 | HandleCount = BufferSize / sizeof (EFI_HII_HANDLE);\r | |
473 | for (Index = 0; Index < HandleCount; Index++) {\r | |
474 | Status = mHiiDatabaseProt->GetPackageListHandle (\r | |
475 | mHiiDatabaseProt,\r | |
476 | HiiHandles[Index],\r | |
477 | &Handle\r | |
478 | );\r | |
479 | if (!EFI_ERROR (Status) && (Handle == DriverHandle)) {\r | |
480 | HiiHandle = HiiHandles[Index];\r | |
481 | break;\r | |
7d582d6b | 482 | }\r |
7d582d6b | 483 | }\r |
484 | \r | |
e52c5a9f | 485 | gBS->FreePool (HiiHandles);\r |
486 | return HiiHandle;\r | |
487 | }\r | |
7d582d6b | 488 | \r |
ad1b3619 | 489 | /**\r |
490 | This function check if the Hii Handle is a valid handle registered\r | |
491 | in the HII database.\r | |
492 | \r | |
493 | @param HiiHandle The HII Handle.\r | |
494 | \r | |
495 | @retval TRUE If it is a valid HII handle.\r | |
496 | @retval FALSE If it is a invalid HII handle.\r | |
497 | **/\r | |
e52c5a9f | 498 | BOOLEAN\r |
499 | IsHiiHandleRegistered (\r | |
500 | EFI_HII_HANDLE HiiHandle\r | |
501 | )\r | |
502 | {\r | |
503 | EFI_STATUS Status;\r | |
504 | UINTN BufferSize;\r | |
505 | EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;\r | |
506 | \r | |
507 | ASSERT (HiiHandle != NULL);\r | |
508 | \r | |
509 | HiiPackageList = NULL;\r | |
510 | BufferSize = 0;\r | |
54cf8780 | 511 | \r |
512 | LocateHiiProtocols ();\r | |
513 | \r | |
e52c5a9f | 514 | Status = mHiiDatabaseProt->ExportPackageLists (\r |
515 | mHiiDatabaseProt,\r | |
516 | HiiHandle,\r | |
517 | &BufferSize,\r | |
518 | HiiPackageList\r | |
519 | );\r | |
520 | \r | |
521 | return (BOOLEAN) (Status == EFI_BUFFER_TOO_SMALL);\r | |
dd51a993 | 522 | }\r |
7d582d6b | 523 | \r |