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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 | |
29870c8d | 35 | //\r |
36 | // Only need to initialize the protocol instance once.\r | |
37 | //\r | |
54cf8780 | 38 | return;\r |
39 | }\r | |
40 | \r | |
41 | Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **) &mHiiDatabaseProt);\r | |
7d582d6b | 42 | ASSERT_EFI_ERROR (Status);\r |
7d582d6b | 43 | \r |
54cf8780 | 44 | Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &mHiiStringProt);\r |
7d582d6b | 45 | ASSERT_EFI_ERROR (Status);\r |
7d582d6b | 46 | \r |
54cf8780 | 47 | mHiiProtocolsInitialized = TRUE;\r |
7d582d6b | 48 | }\r |
49 | \r | |
7d582d6b | 50 | \r |
51 | \r | |
ad1b3619 | 52 | /**\r |
53 | This funciton build the package list based on the package number,\r | |
54 | the GUID of the package list and the list of pointer which point to\r | |
55 | package header that defined by UEFI VFR compiler and StringGather\r | |
56 | tool.\r | |
57 | \r | |
29870c8d | 58 | #pragma pack (push, 1)\r |
59 | typedef struct {\r | |
60 | UINT32 BinaryLength;\r | |
61 | EFI_HII_PACKAGE_HEADER PackageHeader;\r | |
62 | } TIANO_AUTOGEN_PACKAGES_HEADER;\r | |
63 | #pragma pack (pop)\r | |
64 | \r | |
ad1b3619 | 65 | If there is not enough resource for the new package list,\r |
66 | the function will ASSERT.\r | |
67 | \r | |
68 | @param NumberOfPackages The number of packages be \r | |
69 | @param GuidId The GUID for the package list to be generated.\r | |
70 | @param Marker The variable argument list. Each entry represent a specific package header that is\r | |
71 | generated by VFR compiler and StrGather tool. The first 4 bytes is a UINT32 value\r | |
72 | that indicate the overall length of the package.\r | |
73 | \r | |
74 | @return The pointer to the package list header.\r | |
75 | \r | |
76 | **/\r | |
7d582d6b | 77 | EFI_HII_PACKAGE_LIST_HEADER *\r |
78 | InternalHiiLibPreparePackages (\r | |
79 | IN UINTN NumberOfPackages,\r | |
ad1b3619 | 80 | IN CONST EFI_GUID *GuidId,\r |
1db1f6ad | 81 | IN VA_LIST Marker\r |
7d582d6b | 82 | )\r |
83 | {\r | |
84 | EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;\r | |
85 | UINT8 *PackageListData;\r | |
86 | UINT32 PackageListLength;\r | |
87 | UINT32 PackageLength;\r | |
88 | EFI_HII_PACKAGE_HEADER PackageHeader;\r | |
89 | UINT8 *PackageArray;\r | |
90 | UINTN Index;\r | |
91 | VA_LIST MarkerBackup;\r | |
92 | \r | |
93 | PackageListLength = sizeof (EFI_HII_PACKAGE_LIST_HEADER);\r | |
94 | \r | |
95 | MarkerBackup = Marker;\r | |
96 | \r | |
97 | for (Index = 0; Index < NumberOfPackages; Index++) {\r | |
98 | CopyMem (&PackageLength, VA_ARG (Marker, VOID *), sizeof (UINT32));\r | |
29870c8d | 99 | //\r |
100 | // Do not count the BinaryLength field.\r | |
101 | //\r | |
7d582d6b | 102 | PackageListLength += (PackageLength - sizeof (UINT32));\r |
103 | }\r | |
104 | \r | |
105 | //\r | |
106 | // Include the lenght of EFI_HII_PACKAGE_END\r | |
107 | //\r | |
108 | PackageListLength += sizeof (EFI_HII_PACKAGE_HEADER);\r | |
109 | PackageListHeader = AllocateZeroPool (PackageListLength);\r | |
110 | ASSERT (PackageListHeader != NULL);\r | |
29870c8d | 111 | \r |
7d582d6b | 112 | CopyMem (&PackageListHeader->PackageListGuid, GuidId, sizeof (EFI_GUID));\r |
113 | PackageListHeader->PackageLength = PackageListLength;\r | |
114 | \r | |
115 | PackageListData = ((UINT8 *) PackageListHeader) + sizeof (EFI_HII_PACKAGE_LIST_HEADER);\r | |
116 | \r | |
117 | Marker = MarkerBackup;\r | |
118 | for (Index = 0; Index < NumberOfPackages; Index++) {\r | |
119 | PackageArray = (UINT8 *) VA_ARG (Marker, VOID *);\r | |
120 | CopyMem (&PackageLength, PackageArray, sizeof (UINT32));\r | |
121 | PackageLength -= sizeof (UINT32);\r | |
122 | PackageArray += sizeof (UINT32);\r | |
123 | CopyMem (PackageListData, PackageArray, PackageLength);\r | |
124 | PackageListData += PackageLength;\r | |
125 | }\r | |
126 | \r | |
127 | //\r | |
128 | // Append EFI_HII_PACKAGE_END\r | |
129 | //\r | |
130 | PackageHeader.Type = EFI_HII_PACKAGE_END;\r | |
131 | PackageHeader.Length = sizeof (EFI_HII_PACKAGE_HEADER);\r | |
132 | CopyMem (PackageListData, &PackageHeader, PackageHeader.Length);\r | |
133 | \r | |
134 | return PackageListHeader;\r | |
135 | }\r | |
136 | \r | |
ad1b3619 | 137 | /**\r |
138 | Assemble EFI_HII_PACKAGE_LIST according to the passed in packages.\r | |
139 | \r | |
140 | If GuidId is NULL, then ASSERT.\r | |
141 | If not enough resource to complete the operation, then ASSERT.\r | |
142 | \r | |
143 | @param NumberOfPackages Number of packages.\r | |
29870c8d | 144 | @param GuidId Package GUID.\r |
145 | @param ... Variable argument list for packages to be assembled.\r | |
ad1b3619 | 146 | \r |
147 | @return EFI_HII_PACKAGE_LIST_HEADER Pointer of EFI_HII_PACKAGE_LIST_HEADER. The function will ASSERT if system has\r | |
29870c8d | 148 | not enough resource to complete the operation.\r |
ad1b3619 | 149 | \r |
150 | **/\r | |
7d582d6b | 151 | EFI_HII_PACKAGE_LIST_HEADER *\r |
152 | EFIAPI\r | |
153 | HiiLibPreparePackageList (\r | |
154 | IN UINTN NumberOfPackages,\r | |
155 | IN CONST EFI_GUID *GuidId,\r | |
156 | ...\r | |
157 | )\r | |
7d582d6b | 158 | {\r |
159 | EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;\r | |
160 | VA_LIST Marker;\r | |
161 | \r | |
e52c5a9f | 162 | ASSERT (GuidId != NULL);\r |
163 | \r | |
7d582d6b | 164 | VA_START (Marker, GuidId);\r |
165 | PackageListHeader = InternalHiiLibPreparePackages (NumberOfPackages, GuidId, Marker);\r | |
166 | VA_END (Marker);\r | |
167 | \r | |
168 | return PackageListHeader;\r | |
169 | }\r | |
170 | \r | |
bad46384 | 171 | \r |
ad1b3619 | 172 | /**\r |
173 | This function allocates pool for an EFI_HII_PACKAGE_LIST structure\r | |
174 | with additional space that is big enough to host all packages described by the variable \r | |
175 | argument list of package pointers. The allocated structure is initialized using NumberOfPackages, \r | |
176 | GuidId, and the variable length argument list of package pointers.\r | |
177 | \r | |
178 | Then, EFI_HII_PACKAGE_LIST will be register to the default System HII Database. The\r | |
179 | Handle to the newly registered Package List is returned throught HiiHandle.\r | |
180 | \r | |
181 | If HiiHandle is NULL, then ASSERT.\r | |
182 | \r | |
183 | @param NumberOfPackages The number of HII packages to register.\r | |
184 | @param GuidId Package List GUID ID.\r | |
185 | @param DriverHandle Optional. If not NULL, the DriverHandle on which an instance of DEVICE_PATH_PROTOCOL is installed.\r | |
186 | This DriverHandle uniquely defines the device that the added packages are associated with.\r | |
187 | @param HiiHandle On output, the HiiHandle is update with the handle which can be used to retrieve the Package \r | |
188 | List later. If the functions failed to add the package to the default HII database, this value will\r | |
189 | be set to NULL.\r | |
190 | @param ... The variable argument list describing all HII Package.\r | |
191 | \r | |
192 | @return EFI_SUCCESS If the packages are successfully added to the default HII database.\r | |
193 | @return EFI_OUT_OF_RESOURCE Not enough resource to complete the operation.\r | |
194 | \r | |
195 | **/\r | |
7d582d6b | 196 | EFI_STATUS\r |
197 | EFIAPI\r | |
e52c5a9f | 198 | HiiLibAddPackages (\r |
7d582d6b | 199 | IN UINTN NumberOfPackages,\r |
200 | IN CONST EFI_GUID *GuidId,\r | |
201 | IN EFI_HANDLE DriverHandle, OPTIONAL\r | |
2a10d874 | 202 | OUT EFI_HII_HANDLE *HiiHandle,\r |
7d582d6b | 203 | ...\r |
204 | )\r | |
205 | {\r | |
206 | VA_LIST Args;\r | |
207 | EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;\r | |
208 | EFI_STATUS Status;\r | |
209 | \r | |
e52c5a9f | 210 | ASSERT (HiiHandle != NULL);\r |
7d582d6b | 211 | \r |
54cf8780 | 212 | LocateHiiProtocols ();\r |
213 | \r | |
7d582d6b | 214 | VA_START (Args, HiiHandle);\r |
215 | PackageListHeader = InternalHiiLibPreparePackages (NumberOfPackages, GuidId, Args);\r | |
216 | \r | |
217 | Status = mHiiDatabaseProt->NewPackageList (mHiiDatabaseProt, PackageListHeader, DriverHandle, HiiHandle);\r | |
218 | if (HiiHandle != NULL) {\r | |
219 | if (EFI_ERROR (Status)) {\r | |
220 | *HiiHandle = NULL;\r | |
221 | }\r | |
222 | }\r | |
223 | \r | |
224 | FreePool (PackageListHeader);\r | |
225 | VA_END (Args);\r | |
226 | \r | |
227 | return Status;\r | |
228 | }\r | |
229 | \r | |
ad1b3619 | 230 | /**\r |
231 | Removes a package list from the default HII database.\r | |
232 | \r | |
233 | If HiiHandle is NULL, then ASSERT.\r | |
234 | If HiiHandle is not a valid EFI_HII_HANDLE in the default HII database, then ASSERT.\r | |
235 | \r | |
236 | @param HiiHandle The handle that was previously registered to the data base that is requested for removal.\r | |
237 | List later.\r | |
238 | \r | |
ad1b3619 | 239 | **/\r |
e52c5a9f | 240 | VOID\r |
7d582d6b | 241 | EFIAPI\r |
e52c5a9f | 242 | HiiLibRemovePackages (\r |
7d582d6b | 243 | IN EFI_HII_HANDLE HiiHandle\r |
244 | )\r | |
245 | {\r | |
e52c5a9f | 246 | EFI_STATUS Status;\r |
29870c8d | 247 | ASSERT (IsHiiHandleRegistered (HiiHandle));\r |
54cf8780 | 248 | \r |
249 | LocateHiiProtocols ();\r | |
250 | \r | |
e52c5a9f | 251 | Status = mHiiDatabaseProt->RemovePackageList (mHiiDatabaseProt, HiiHandle);\r |
252 | ASSERT_EFI_ERROR (Status);\r | |
7d582d6b | 253 | }\r |
254 | \r | |
e52c5a9f | 255 | \r |
ad1b3619 | 256 | /**\r |
257 | Determines the handles that are currently active in the database.\r | |
258 | It's the caller's responsibility to free handle buffer.\r | |
259 | \r | |
260 | If HandleBufferLength is NULL, then ASSERT.\r | |
261 | If HiiHandleBuffer is NULL, then ASSERT.\r | |
262 | \r | |
263 | @param HandleBufferLength On input, a pointer to the length of the handle\r | |
264 | buffer. On output, the length of the handle buffer\r | |
265 | that is required for the handles found.\r | |
266 | @param HiiHandleBuffer Pointer to an array of Hii Handles returned.\r | |
267 | \r | |
268 | @retval EFI_SUCCESS Get an array of Hii Handles successfully.\r | |
269 | \r | |
270 | **/\r | |
7d582d6b | 271 | EFI_STATUS\r |
272 | EFIAPI\r | |
e52c5a9f | 273 | HiiLibGetHiiHandles (\r |
274 | IN OUT UINTN *HandleBufferLength,\r | |
275 | OUT EFI_HII_HANDLE **HiiHandleBuffer\r | |
7d582d6b | 276 | )\r |
277 | {\r | |
e52c5a9f | 278 | UINTN BufferLength;\r |
7d582d6b | 279 | EFI_STATUS Status;\r |
7d582d6b | 280 | \r |
e52c5a9f | 281 | ASSERT (HandleBufferLength != NULL);\r |
282 | ASSERT (HiiHandleBuffer != NULL);\r | |
7d582d6b | 283 | \r |
e52c5a9f | 284 | BufferLength = 0;\r |
7d582d6b | 285 | \r |
54cf8780 | 286 | LocateHiiProtocols ();\r |
287 | \r | |
e52c5a9f | 288 | //\r |
289 | // Try to find the actual buffer size for HiiHandle Buffer.\r | |
290 | //\r | |
291 | Status = mHiiDatabaseProt->ListPackageLists (\r | |
292 | mHiiDatabaseProt,\r | |
293 | EFI_HII_PACKAGE_TYPE_ALL,\r | |
7d582d6b | 294 | NULL,\r |
e52c5a9f | 295 | &BufferLength,\r |
296 | *HiiHandleBuffer\r | |
7d582d6b | 297 | );\r |
7d582d6b | 298 | \r |
e52c5a9f | 299 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
300 | *HiiHandleBuffer = AllocateZeroPool (BufferLength);\r | |
301 | Status = mHiiDatabaseProt->ListPackageLists (\r | |
302 | mHiiDatabaseProt,\r | |
303 | EFI_HII_PACKAGE_TYPE_ALL,\r | |
304 | NULL,\r | |
305 | &BufferLength,\r | |
306 | *HiiHandleBuffer\r | |
307 | );\r | |
308 | //\r | |
309 | // we should not fail here.\r | |
310 | //\r | |
311 | ASSERT_EFI_ERROR (Status);\r | |
7d582d6b | 312 | }\r |
313 | \r | |
e52c5a9f | 314 | *HandleBufferLength = BufferLength;\r |
7d582d6b | 315 | \r |
316 | return Status;\r | |
317 | }\r | |
318 | \r | |
ad1b3619 | 319 | /**\r |
320 | Extract Hii package list GUID for given HII handle.\r | |
321 | \r | |
322 | If HiiHandle could not be found in the default HII database, then ASSERT.\r | |
323 | If Guid is NULL, then ASSERT.\r | |
324 | \r | |
325 | @param Handle Hii handle\r | |
326 | @param Guid Package list GUID\r | |
327 | \r | |
328 | @retval EFI_SUCCESS Successfully extract GUID from Hii database.\r | |
329 | \r | |
330 | **/\r | |
7d582d6b | 331 | EFI_STATUS\r |
dd51a993 | 332 | EFIAPI\r |
e52c5a9f | 333 | HiiLibExtractGuidFromHiiHandle (\r |
334 | IN EFI_HII_HANDLE Handle,\r | |
335 | OUT EFI_GUID *Guid\r | |
7d582d6b | 336 | )\r |
337 | {\r | |
338 | EFI_STATUS Status;\r | |
e52c5a9f | 339 | UINTN BufferSize;\r |
340 | EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;\r | |
7d582d6b | 341 | \r |
e52c5a9f | 342 | ASSERT (Guid != NULL);\r |
29870c8d | 343 | ASSERT (IsHiiHandleRegistered (Handle));\r |
7d582d6b | 344 | \r |
e52c5a9f | 345 | //\r |
346 | // Get HII PackageList\r | |
347 | //\r | |
348 | BufferSize = 0;\r | |
349 | HiiPackageList = NULL;\r | |
54cf8780 | 350 | \r |
351 | LocateHiiProtocols ();\r | |
352 | \r | |
e52c5a9f | 353 | Status = mHiiDatabaseProt->ExportPackageLists (mHiiDatabaseProt, Handle, &BufferSize, HiiPackageList);\r |
354 | ASSERT (Status != EFI_NOT_FOUND);\r | |
355 | \r | |
356 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
357 | HiiPackageList = AllocatePool (BufferSize);\r | |
358 | ASSERT (HiiPackageList != NULL);\r | |
7d582d6b | 359 | \r |
e52c5a9f | 360 | Status = mHiiDatabaseProt->ExportPackageLists (mHiiDatabaseProt, Handle, &BufferSize, HiiPackageList);\r |
7d582d6b | 361 | }\r |
7d582d6b | 362 | if (EFI_ERROR (Status)) {\r |
363 | return Status;\r | |
364 | }\r | |
365 | \r | |
e52c5a9f | 366 | //\r |
367 | // Extract GUID\r | |
368 | //\r | |
369 | CopyMem (Guid, &HiiPackageList->PackageListGuid, sizeof (EFI_GUID));\r | |
7d582d6b | 370 | \r |
29870c8d | 371 | FreePool (HiiPackageList);\r |
7d582d6b | 372 | \r |
373 | return EFI_SUCCESS;\r | |
374 | }\r | |
375 | \r | |
ad1b3619 | 376 | /**\r |
377 | Find HII Handle in the default HII database associated with given Device Path.\r | |
378 | \r | |
379 | If DevicePath is NULL, then ASSERT.\r | |
380 | \r | |
381 | @param DevicePath Device Path associated with the HII package list\r | |
382 | handle.\r | |
383 | \r | |
384 | @retval Handle HII package list Handle associated with the Device\r | |
385 | Path.\r | |
386 | @retval NULL Hii Package list handle is not found.\r | |
387 | \r | |
388 | **/\r | |
e52c5a9f | 389 | EFI_HII_HANDLE\r |
390 | EFIAPI\r | |
391 | HiiLibDevicePathToHiiHandle (\r | |
392 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
7d582d6b | 393 | )\r |
7d582d6b | 394 | {\r |
e52c5a9f | 395 | EFI_STATUS Status;\r |
396 | EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;\r | |
397 | UINTN BufferSize;\r | |
398 | UINTN HandleCount;\r | |
399 | UINTN Index;\r | |
400 | EFI_HANDLE *Handles;\r | |
401 | EFI_HANDLE Handle;\r | |
402 | UINTN Size;\r | |
403 | EFI_HANDLE DriverHandle;\r | |
404 | EFI_HII_HANDLE *HiiHandles;\r | |
405 | EFI_HII_HANDLE HiiHandle;\r | |
7d582d6b | 406 | \r |
e52c5a9f | 407 | ASSERT (DevicePath != NULL);\r |
7d582d6b | 408 | \r |
dd51a993 | 409 | //\r |
e52c5a9f | 410 | // Locate Device Path Protocol handle buffer\r |
7d582d6b | 411 | //\r |
e52c5a9f | 412 | Status = gBS->LocateHandleBuffer (\r |
413 | ByProtocol,\r | |
414 | &gEfiDevicePathProtocolGuid,\r | |
7d582d6b | 415 | NULL,\r |
e52c5a9f | 416 | &HandleCount,\r |
417 | &Handles\r | |
7d582d6b | 418 | );\r |
419 | if (EFI_ERROR (Status)) {\r | |
e52c5a9f | 420 | return NULL;\r |
7d582d6b | 421 | }\r |
422 | \r | |
423 | //\r | |
e52c5a9f | 424 | // Search Driver Handle by Device Path\r |
7d582d6b | 425 | //\r |
e52c5a9f | 426 | DriverHandle = NULL;\r |
427 | BufferSize = GetDevicePathSize (DevicePath);\r | |
428 | for(Index = 0; Index < HandleCount; Index++) {\r | |
429 | Handle = Handles[Index];\r | |
430 | gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, (VOID **) &TmpDevicePath);\r | |
431 | \r | |
432 | //\r | |
433 | // Check whether DevicePath match\r | |
434 | //\r | |
435 | Size = GetDevicePathSize (TmpDevicePath);\r | |
436 | if ((Size == BufferSize) && CompareMem (DevicePath, TmpDevicePath, Size) == 0) {\r | |
437 | DriverHandle = Handle;\r | |
438 | break;\r | |
439 | }\r | |
7d582d6b | 440 | }\r |
29870c8d | 441 | FreePool (Handles);\r |
e52c5a9f | 442 | \r |
443 | if (DriverHandle == NULL) {\r | |
444 | return NULL;\r | |
7d582d6b | 445 | }\r |
446 | \r | |
54cf8780 | 447 | LocateHiiProtocols ();\r |
448 | \r | |
bad46384 | 449 | //\r |
e52c5a9f | 450 | // Retrieve all Hii Handles from HII database\r |
7d582d6b | 451 | //\r |
e52c5a9f | 452 | BufferSize = 0x1000;\r |
453 | HiiHandles = AllocatePool (BufferSize);\r | |
454 | ASSERT (HiiHandles != NULL);\r | |
455 | Status = mHiiDatabaseProt->ListPackageLists (\r | |
456 | mHiiDatabaseProt,\r | |
457 | EFI_HII_PACKAGE_TYPE_ALL,\r | |
458 | NULL,\r | |
459 | &BufferSize,\r | |
460 | HiiHandles\r | |
461 | );\r | |
462 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
29870c8d | 463 | FreePool (HiiHandles);\r |
e52c5a9f | 464 | HiiHandles = AllocatePool (BufferSize);\r |
465 | ASSERT (HiiHandles != NULL);\r | |
466 | \r | |
467 | Status = mHiiDatabaseProt->ListPackageLists (\r | |
468 | mHiiDatabaseProt,\r | |
469 | EFI_HII_PACKAGE_TYPE_ALL,\r | |
470 | NULL,\r | |
471 | &BufferSize,\r | |
472 | HiiHandles\r | |
473 | );\r | |
474 | }\r | |
7d582d6b | 475 | \r |
e52c5a9f | 476 | if (EFI_ERROR (Status)) {\r |
29870c8d | 477 | FreePool (HiiHandles);\r |
e52c5a9f | 478 | return NULL;\r |
479 | }\r | |
7d582d6b | 480 | \r |
e52c5a9f | 481 | //\r |
482 | // Search Hii Handle by Driver Handle\r | |
483 | //\r | |
484 | HiiHandle = NULL;\r | |
485 | HandleCount = BufferSize / sizeof (EFI_HII_HANDLE);\r | |
486 | for (Index = 0; Index < HandleCount; Index++) {\r | |
487 | Status = mHiiDatabaseProt->GetPackageListHandle (\r | |
488 | mHiiDatabaseProt,\r | |
489 | HiiHandles[Index],\r | |
490 | &Handle\r | |
491 | );\r | |
492 | if (!EFI_ERROR (Status) && (Handle == DriverHandle)) {\r | |
493 | HiiHandle = HiiHandles[Index];\r | |
494 | break;\r | |
7d582d6b | 495 | }\r |
7d582d6b | 496 | }\r |
497 | \r | |
29870c8d | 498 | FreePool (HiiHandles);\r |
e52c5a9f | 499 | return HiiHandle;\r |
500 | }\r | |
7d582d6b | 501 | \r |
ad1b3619 | 502 | /**\r |
503 | This function check if the Hii Handle is a valid handle registered\r | |
504 | in the HII database.\r | |
505 | \r | |
506 | @param HiiHandle The HII Handle.\r | |
507 | \r | |
508 | @retval TRUE If it is a valid HII handle.\r | |
509 | @retval FALSE If it is a invalid HII handle.\r | |
510 | **/\r | |
e52c5a9f | 511 | BOOLEAN\r |
512 | IsHiiHandleRegistered (\r | |
513 | EFI_HII_HANDLE HiiHandle\r | |
514 | )\r | |
515 | {\r | |
516 | EFI_STATUS Status;\r | |
517 | UINTN BufferSize;\r | |
518 | EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;\r | |
519 | \r | |
520 | ASSERT (HiiHandle != NULL);\r | |
521 | \r | |
522 | HiiPackageList = NULL;\r | |
523 | BufferSize = 0;\r | |
54cf8780 | 524 | \r |
525 | LocateHiiProtocols ();\r | |
526 | \r | |
e52c5a9f | 527 | Status = mHiiDatabaseProt->ExportPackageLists (\r |
528 | mHiiDatabaseProt,\r | |
529 | HiiHandle,\r | |
530 | &BufferSize,\r | |
531 | HiiPackageList\r | |
532 | );\r | |
533 | \r | |
534 | return (BOOLEAN) (Status == EFI_BUFFER_TOO_SMALL);\r | |
dd51a993 | 535 | }\r |
7d582d6b | 536 | \r |