| e386b444 |
1 | /** @file\r |
| 2 | Mde UEFI library functions.\r |
| 3 | \r |
| 4 | Copyright (c) 2006 - 2007, Intel Corporation<BR>\r |
| 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 |
| 9 | \r |
| 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 |
| 12 | \r |
| 13 | Module Name: UefiLib.c\r |
| 14 | \r |
| 15 | **/\r |
| 16 | \r |
| 17 | //\r |
| 18 | // Include common header file for this module.\r |
| 19 | //\r |
| f734a10a |
20 | #include "UefiLibInternal.h"\r |
| e386b444 |
21 | \r |
| 22 | /**\r |
| 23 | Compare whether two names of languages are identical.\r |
| 24 | \r |
| 25 | @param Language1 Name of language 1.\r |
| 26 | @param Language2 Name of language 2.\r |
| 27 | \r |
| 28 | @retval TRUE Language 1 and language 2 are the same.\r |
| 29 | @retval FALSE Language 1 and language 2 are not the same.\r |
| 30 | \r |
| 31 | **/\r |
| 32 | STATIC\r |
| 33 | BOOLEAN\r |
| 34 | CompareIso639LanguageCode (\r |
| 35 | IN CONST CHAR8 *Language1,\r |
| 36 | IN CONST CHAR8 *Language2\r |
| 37 | )\r |
| 38 | {\r |
| 39 | UINT32 Name1;\r |
| 40 | UINT32 Name2;\r |
| 41 | \r |
| 42 | Name1 = ReadUnaligned24 ((CONST UINT32 *) Language1);\r |
| 43 | Name2 = ReadUnaligned24 ((CONST UINT32 *) Language2);\r |
| 44 | \r |
| 45 | return (BOOLEAN) (Name1 == Name2);\r |
| 46 | }\r |
| 47 | \r |
| 48 | /**\r |
| 49 | This function searches the list of configuration tables stored in the EFI System\r |
| 50 | Table for a table with a GUID that matches TableGuid. If a match is found,\r |
| 51 | then a pointer to the configuration table is returned in Table, and EFI_SUCCESS\r |
| 52 | is returned. If a matching GUID is not found, then EFI_NOT_FOUND is returned.\r |
| 53 | \r |
| 54 | @param TableGuid Pointer to table's GUID type..\r |
| 55 | @param Table Pointer to the table associated with TableGuid in the EFI System Table.\r |
| 56 | \r |
| 57 | @retval EFI_SUCCESS A configuration table matching TableGuid was found.\r |
| 58 | @retval EFI_NOT_FOUND A configuration table matching TableGuid could not be found.\r |
| 59 | \r |
| 60 | **/\r |
| 61 | EFI_STATUS\r |
| 62 | EFIAPI\r |
| 63 | EfiGetSystemConfigurationTable (\r |
| 64 | IN EFI_GUID *TableGuid,\r |
| 65 | OUT VOID **Table\r |
| 66 | )\r |
| 67 | {\r |
| 68 | EFI_SYSTEM_TABLE *SystemTable;\r |
| 69 | UINTN Index;\r |
| 70 | \r |
| 71 | ASSERT (TableGuid != NULL);\r |
| 72 | ASSERT (Table != NULL);\r |
| 73 | \r |
| 74 | SystemTable = gST;\r |
| 75 | *Table = NULL;\r |
| 76 | for (Index = 0; Index < SystemTable->NumberOfTableEntries; Index++) {\r |
| 77 | if (CompareGuid (TableGuid, &(SystemTable->ConfigurationTable[Index].VendorGuid))) {\r |
| 78 | *Table = SystemTable->ConfigurationTable[Index].VendorTable;\r |
| 79 | return EFI_SUCCESS;\r |
| 80 | }\r |
| 81 | }\r |
| 82 | \r |
| 83 | return EFI_NOT_FOUND;\r |
| 84 | }\r |
| 85 | \r |
| 86 | /**\r |
| 87 | This function causes the notification function to be executed for every protocol\r |
| 88 | of type ProtocolGuid instance that exists in the system when this function is\r |
| 89 | invoked. In addition, every time a protocol of type ProtocolGuid instance is\r |
| 90 | installed or reinstalled, the notification function is also executed.\r |
| 91 | \r |
| 92 | @param ProtocolGuid Supplies GUID of the protocol upon whose installation the event is fired.\r |
| 93 | @param NotifyTpl Supplies the task priority level of the event notifications.\r |
| 94 | @param NotifyFunction Supplies the function to notify when the event is signaled.\r |
| 95 | @param NotifyContext The context parameter to pass to NotifyFunction.\r |
| 96 | @param Registration A pointer to a memory location to receive the registration value.\r |
| 97 | \r |
| 98 | @return The notification event that was created.\r |
| 99 | \r |
| 100 | **/\r |
| 101 | EFI_EVENT\r |
| 102 | EFIAPI\r |
| 103 | EfiCreateProtocolNotifyEvent(\r |
| 104 | IN EFI_GUID *ProtocolGuid,\r |
| 105 | IN EFI_TPL NotifyTpl,\r |
| 106 | IN EFI_EVENT_NOTIFY NotifyFunction,\r |
| 107 | IN VOID *NotifyContext, OPTIONAL\r |
| 108 | OUT VOID **Registration\r |
| 109 | )\r |
| 110 | {\r |
| 111 | EFI_STATUS Status;\r |
| 112 | EFI_EVENT Event;\r |
| 113 | \r |
| 114 | //\r |
| 115 | // Create the event\r |
| 116 | //\r |
| 117 | \r |
| 118 | Status = gBS->CreateEvent (\r |
| 119 | EVT_NOTIFY_SIGNAL,\r |
| 120 | NotifyTpl,\r |
| 121 | NotifyFunction,\r |
| 122 | NotifyContext,\r |
| 123 | &Event\r |
| 124 | );\r |
| 125 | ASSERT_EFI_ERROR (Status);\r |
| 126 | \r |
| 127 | //\r |
| 128 | // Register for protocol notifactions on this event\r |
| 129 | //\r |
| 130 | \r |
| 131 | Status = gBS->RegisterProtocolNotify (\r |
| 132 | ProtocolGuid,\r |
| 133 | Event,\r |
| 134 | Registration\r |
| 135 | );\r |
| 136 | \r |
| 137 | ASSERT_EFI_ERROR (Status);\r |
| 138 | \r |
| 139 | //\r |
| 140 | // Kick the event so we will perform an initial pass of\r |
| 141 | // current installed drivers\r |
| 142 | //\r |
| 143 | \r |
| 144 | gBS->SignalEvent (Event);\r |
| 145 | return Event;\r |
| 146 | }\r |
| 147 | \r |
| 148 | /**\r |
| 149 | This function creates an event using NotifyTpl, NoifyFunction, and NotifyContext.\r |
| 150 | This event is signaled with EfiNamedEventSignal(). This provide the ability for\r |
| 151 | one or more listeners on the same event named by the GUID specified by Name.\r |
| 152 | \r |
| 153 | @param Name Supplies GUID name of the event.\r |
| 154 | @param NotifyTpl Supplies the task priority level of the event notifications.\r |
| 155 | @param NotifyFunction Supplies the function to notify when the event is signaled.\r |
| 156 | @param NotifyContext The context parameter to pass to NotifyFunction.\r |
| 157 | @param Registration A pointer to a memory location to receive the registration value.\r |
| 158 | \r |
| 159 | @retval EFI_SUCCESS A named event was created.\r |
| 160 | @retval EFI_OUT_OF_RESOURCES There are not enough resource to create the named event.\r |
| 161 | \r |
| 162 | **/\r |
| 163 | EFI_STATUS\r |
| 164 | EFIAPI\r |
| 165 | EfiNamedEventListen (\r |
| 166 | IN CONST EFI_GUID *Name,\r |
| 167 | IN EFI_TPL NotifyTpl,\r |
| 168 | IN EFI_EVENT_NOTIFY NotifyFunction,\r |
| 169 | IN CONST VOID *NotifyContext, OPTIONAL\r |
| 170 | OUT VOID *Registration OPTIONAL\r |
| 171 | )\r |
| 172 | {\r |
| 173 | EFI_STATUS Status;\r |
| 174 | EFI_EVENT Event;\r |
| 175 | VOID *RegistrationLocal;\r |
| 176 | \r |
| 177 | //\r |
| 178 | // Create event\r |
| 179 | //\r |
| 180 | Status = gBS->CreateEvent (\r |
| 181 | EVT_NOTIFY_SIGNAL,\r |
| 182 | NotifyTpl,\r |
| 183 | NotifyFunction,\r |
| 184 | (VOID *) NotifyContext,\r |
| 185 | &Event\r |
| 186 | );\r |
| 187 | ASSERT_EFI_ERROR (Status);\r |
| 188 | \r |
| 189 | //\r |
| 190 | // The Registration is not optional to RegisterProtocolNotify().\r |
| 191 | // To make it optional to EfiNamedEventListen(), may need to substitute with a local.\r |
| 192 | //\r |
| 193 | if (Registration != NULL) {\r |
| 194 | RegistrationLocal = Registration;\r |
| 195 | } else {\r |
| 196 | RegistrationLocal = &RegistrationLocal;\r |
| 197 | }\r |
| 198 | \r |
| 199 | //\r |
| 200 | // Register for an installation of protocol interface\r |
| 201 | //\r |
| 202 | \r |
| 203 | Status = gBS->RegisterProtocolNotify (\r |
| 204 | (EFI_GUID *) Name,\r |
| 205 | Event,\r |
| 206 | RegistrationLocal\r |
| 207 | );\r |
| 208 | ASSERT_EFI_ERROR (Status);\r |
| 209 | \r |
| 210 | return EFI_SUCCESS;\r |
| 211 | }\r |
| 212 | \r |
| 213 | /**\r |
| 214 | This function signals the named event specified by Name. The named event must\r |
| 215 | have been created with EfiNamedEventListen().\r |
| 216 | \r |
| 217 | @param Name Supplies GUID name of the event.\r |
| 218 | \r |
| 219 | @retval EFI_SUCCESS A named event was signaled.\r |
| 220 | @retval EFI_OUT_OF_RESOURCES There are not enough resource to signal the named event.\r |
| 221 | \r |
| 222 | **/\r |
| 223 | EFI_STATUS\r |
| 224 | EFIAPI\r |
| 225 | EfiNamedEventSignal (\r |
| 226 | IN CONST EFI_GUID *Name\r |
| 227 | )\r |
| 228 | {\r |
| 229 | EFI_STATUS Status;\r |
| 230 | EFI_HANDLE Handle;\r |
| 231 | \r |
| 232 | Handle = NULL;\r |
| 233 | Status = gBS->InstallProtocolInterface (\r |
| 234 | &Handle,\r |
| 235 | (EFI_GUID *) Name,\r |
| 236 | EFI_NATIVE_INTERFACE,\r |
| 237 | NULL\r |
| 238 | );\r |
| 239 | ASSERT_EFI_ERROR (Status);\r |
| 240 | \r |
| 241 | Status = gBS->UninstallProtocolInterface (\r |
| 242 | Handle,\r |
| 243 | (EFI_GUID *) Name,\r |
| 244 | NULL\r |
| 245 | );\r |
| 246 | ASSERT_EFI_ERROR (Status);\r |
| 247 | \r |
| 248 | return EFI_SUCCESS;\r |
| 249 | }\r |
| 250 | \r |
| 251 | /**\r |
| 252 | Returns the current TPL.\r |
| 253 | \r |
| 254 | This function returns the current TPL. There is no EFI service to directly\r |
| 255 | retrieve the current TPL. Instead, the RaiseTPL() function is used to raise\r |
| 256 | the TPL to TPL_HIGH_LEVEL. This will return the current TPL. The TPL level\r |
| 257 | can then immediately be restored back to the current TPL level with a call\r |
| 258 | to RestoreTPL().\r |
| 259 | \r |
| 260 | @param VOID\r |
| 261 | \r |
| 262 | @retvale EFI_TPL The current TPL.\r |
| 263 | \r |
| 264 | **/\r |
| 265 | EFI_TPL\r |
| 266 | EFIAPI\r |
| 267 | EfiGetCurrentTpl (\r |
| 268 | VOID\r |
| 269 | )\r |
| 270 | {\r |
| 271 | EFI_TPL Tpl;\r |
| 272 | \r |
| 273 | Tpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r |
| 274 | gBS->RestoreTPL (Tpl);\r |
| 275 | \r |
| 276 | return Tpl;\r |
| 277 | }\r |
| 278 | \r |
| 279 | \r |
| 280 | /**\r |
| 281 | This function initializes a basic mutual exclusion lock to the released state\r |
| 282 | and returns the lock. Each lock provides mutual exclusion access at its task\r |
| 283 | priority level. Since there is no preemption or multiprocessor support in EFI,\r |
| 284 | acquiring the lock only consists of raising to the locks TPL.\r |
| 285 | \r |
| 286 | @param Lock A pointer to the lock data structure to initialize.\r |
| 287 | @param Priority EFI TPL associated with the lock.\r |
| 288 | \r |
| 289 | @return The lock.\r |
| 290 | \r |
| 291 | **/\r |
| 292 | EFI_LOCK *\r |
| 293 | EFIAPI\r |
| 294 | EfiInitializeLock (\r |
| 295 | IN OUT EFI_LOCK *Lock,\r |
| 296 | IN EFI_TPL Priority\r |
| 297 | )\r |
| 298 | {\r |
| 299 | ASSERT (Lock != NULL);\r |
| 300 | ASSERT (Priority <= TPL_HIGH_LEVEL);\r |
| 301 | \r |
| 302 | Lock->Tpl = Priority;\r |
| 303 | Lock->OwnerTpl = TPL_APPLICATION;\r |
| 304 | Lock->Lock = EfiLockReleased ;\r |
| 305 | return Lock;\r |
| 306 | }\r |
| 307 | \r |
| 308 | /**\r |
| 309 | This function raises the system's current task priority level to the task\r |
| 310 | priority level of the mutual exclusion lock. Then, it places the lock in the\r |
| 311 | acquired state.\r |
| 312 | \r |
| 313 | @param Priority The task priority level of the lock.\r |
| 314 | \r |
| 315 | **/\r |
| 316 | VOID\r |
| 317 | EFIAPI\r |
| 318 | EfiAcquireLock (\r |
| 319 | IN EFI_LOCK *Lock\r |
| 320 | )\r |
| 321 | {\r |
| 322 | ASSERT (Lock != NULL);\r |
| 323 | ASSERT (Lock->Lock == EfiLockReleased);\r |
| 324 | \r |
| 325 | Lock->OwnerTpl = gBS->RaiseTPL (Lock->Tpl);\r |
| 326 | Lock->Lock = EfiLockAcquired;\r |
| 327 | }\r |
| 328 | \r |
| 329 | /**\r |
| 330 | This function raises the system's current task priority level to the task\r |
| 331 | priority level of the mutual exclusion lock. Then, it attempts to place the\r |
| 332 | lock in the acquired state.\r |
| 333 | \r |
| 334 | @param Lock A pointer to the lock to acquire.\r |
| 335 | \r |
| 336 | @retval EFI_SUCCESS The lock was acquired.\r |
| 337 | @retval EFI_ACCESS_DENIED The lock could not be acquired because it is already owned.\r |
| 338 | \r |
| 339 | **/\r |
| 340 | EFI_STATUS\r |
| 341 | EFIAPI\r |
| 342 | EfiAcquireLockOrFail (\r |
| 343 | IN EFI_LOCK *Lock\r |
| 344 | )\r |
| 345 | {\r |
| 346 | \r |
| 347 | ASSERT (Lock != NULL);\r |
| 348 | ASSERT (Lock->Lock != EfiLockUninitialized);\r |
| 349 | \r |
| 350 | if (Lock->Lock == EfiLockAcquired) {\r |
| 351 | //\r |
| 352 | // Lock is already owned, so bail out\r |
| 353 | //\r |
| 354 | return EFI_ACCESS_DENIED;\r |
| 355 | }\r |
| 356 | \r |
| 357 | Lock->OwnerTpl = gBS->RaiseTPL (Lock->Tpl);\r |
| 358 | \r |
| 359 | Lock->Lock = EfiLockAcquired;\r |
| 360 | \r |
| 361 | return EFI_SUCCESS;\r |
| 362 | }\r |
| 363 | \r |
| 364 | /**\r |
| 365 | This function transitions a mutual exclusion lock from the acquired state to\r |
| 366 | the released state, and restores the system's task priority level to its\r |
| 367 | previous level.\r |
| 368 | \r |
| 369 | @param Lock A pointer to the lock to release.\r |
| 370 | \r |
| 371 | **/\r |
| 372 | VOID\r |
| 373 | EFIAPI\r |
| 374 | EfiReleaseLock (\r |
| 375 | IN EFI_LOCK *Lock\r |
| 376 | )\r |
| 377 | {\r |
| 378 | EFI_TPL Tpl;\r |
| 379 | \r |
| 380 | ASSERT (Lock != NULL);\r |
| 381 | ASSERT (Lock->Lock == EfiLockAcquired);\r |
| 382 | \r |
| 383 | Tpl = Lock->OwnerTpl;\r |
| 384 | \r |
| 385 | Lock->Lock = EfiLockReleased;\r |
| 386 | \r |
| 387 | gBS->RestoreTPL (Tpl);\r |
| 388 | }\r |
| 389 | \r |
| 390 | /**\r |
| 391 | Tests whether a controller handle is being managed by a specific driver.\r |
| 392 | \r |
| 393 | This function tests whether the driver specified by DriverBindingHandle is\r |
| 394 | currently managing the controller specified by ControllerHandle. This test\r |
| 395 | is performed by evaluating if the the protocol specified by ProtocolGuid is\r |
| 396 | present on ControllerHandle and is was opened by DriverBindingHandle with an\r |
| 397 | attribute of EFI_OPEN_PROTOCOL_BY_DRIVER.\r |
| 398 | If ProtocolGuid is NULL, then ASSERT().\r |
| 399 | \r |
| 400 | @param ControllerHandle A handle for a controller to test.\r |
| 401 | @param DriverBindingHandle Specifies the driver binding handle for the\r |
| 402 | driver.\r |
| 403 | @param ProtocolGuid Specifies the protocol that the driver specified\r |
| 404 | by DriverBindingHandle opens in its Start()\r |
| 405 | function.\r |
| 406 | \r |
| 407 | @retval EFI_SUCCESS ControllerHandle is managed by the driver\r |
| 408 | specifed by DriverBindingHandle.\r |
| 409 | @retval EFI_UNSUPPORTED ControllerHandle is not managed by the driver\r |
| 410 | specifed by DriverBindingHandle.\r |
| 411 | \r |
| 412 | **/\r |
| 413 | EFI_STATUS\r |
| 414 | EFIAPI\r |
| 415 | EfiTestManagedDevice (\r |
| 416 | IN CONST EFI_HANDLE ControllerHandle,\r |
| 417 | IN CONST EFI_HANDLE DriverBindingHandle,\r |
| 418 | IN CONST EFI_GUID *ProtocolGuid\r |
| 419 | )\r |
| 420 | {\r |
| 421 | EFI_STATUS Status;\r |
| 422 | VOID *ManagedInterface;\r |
| 423 | \r |
| 424 | ASSERT (ProtocolGuid != NULL);\r |
| 425 | \r |
| 426 | Status = gBS->OpenProtocol (\r |
| 427 | ControllerHandle,\r |
| 428 | (EFI_GUID *) ProtocolGuid,\r |
| 429 | &ManagedInterface,\r |
| 430 | DriverBindingHandle,\r |
| 431 | ControllerHandle,\r |
| 432 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 433 | );\r |
| 434 | if (!EFI_ERROR (Status)) {\r |
| 435 | gBS->CloseProtocol (\r |
| 436 | ControllerHandle,\r |
| 437 | (EFI_GUID *) ProtocolGuid,\r |
| 438 | DriverBindingHandle,\r |
| 439 | ControllerHandle\r |
| 440 | );\r |
| 441 | return EFI_UNSUPPORTED;\r |
| 442 | }\r |
| 443 | \r |
| 444 | if (Status != EFI_ALREADY_STARTED) {\r |
| 445 | return EFI_UNSUPPORTED;\r |
| 446 | }\r |
| 447 | \r |
| 448 | return EFI_SUCCESS;\r |
| 449 | }\r |
| 450 | \r |
| 451 | /**\r |
| 452 | Tests whether a child handle is a child device of the controller.\r |
| 453 | \r |
| 454 | This function tests whether ChildHandle is one of the children of\r |
| 455 | ControllerHandle. This test is performed by checking to see if the protocol\r |
| 456 | specified by ProtocolGuid is present on ControllerHandle and opened by\r |
| 457 | ChildHandle with an attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r |
| 458 | If ProtocolGuid is NULL, then ASSERT().\r |
| 459 | \r |
| 460 | @param ControllerHandle A handle for a (parent) controller to test.\r |
| 461 | @param ChildHandle A child handle to test.\r |
| 462 | @param ConsumsedGuid Supplies the protocol that the child controller\r |
| 463 | opens on its parent controller.\r |
| 464 | \r |
| 465 | @retval EFI_SUCCESS ChildHandle is a child of the ControllerHandle.\r |
| 466 | @retval EFI_UNSUPPORTED ChildHandle is not a child of the\r |
| 467 | ControllerHandle.\r |
| 468 | \r |
| 469 | **/\r |
| 470 | EFI_STATUS\r |
| 471 | EFIAPI\r |
| 472 | EfiTestChildHandle (\r |
| 473 | IN CONST EFI_HANDLE ControllerHandle,\r |
| 474 | IN CONST EFI_HANDLE ChildHandle,\r |
| 475 | IN CONST EFI_GUID *ProtocolGuid\r |
| 476 | )\r |
| 477 | {\r |
| 478 | EFI_STATUS Status;\r |
| 479 | EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;\r |
| 480 | UINTN EntryCount;\r |
| 481 | UINTN Index;\r |
| 482 | \r |
| 483 | ASSERT (ProtocolGuid != NULL);\r |
| 484 | \r |
| 485 | //\r |
| 486 | // Retrieve the list of agents that are consuming the specific protocol\r |
| 487 | // on ControllerHandle.\r |
| 488 | //\r |
| 489 | Status = gBS->OpenProtocolInformation (\r |
| 490 | ControllerHandle,\r |
| 491 | (EFI_GUID *) ProtocolGuid,\r |
| 492 | &OpenInfoBuffer,\r |
| 493 | &EntryCount\r |
| 494 | );\r |
| 495 | if (EFI_ERROR (Status)) {\r |
| 496 | return EFI_UNSUPPORTED;\r |
| 497 | }\r |
| 498 | \r |
| 499 | //\r |
| 500 | // Inspect if ChildHandle is one of the agents.\r |
| 501 | //\r |
| 502 | Status = EFI_UNSUPPORTED;\r |
| 503 | for (Index = 0; Index < EntryCount; Index++) {\r |
| 504 | if ((OpenInfoBuffer[Index].ControllerHandle == ChildHandle) &&\r |
| 505 | (OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {\r |
| 506 | Status = EFI_SUCCESS;\r |
| 507 | break;\r |
| 508 | }\r |
| 509 | }\r |
| 510 | \r |
| 511 | FreePool (OpenInfoBuffer);\r |
| 512 | return Status;\r |
| 513 | }\r |
| 514 | \r |
| 515 | /**\r |
| dd51a993 |
516 | This function looks up a Unicode string in UnicodeStringTable.\r |
| 517 | If Language is a member of SupportedLanguages and a Unicode\r |
| 518 | string is found in UnicodeStringTable that matches the\r |
| 519 | language code specified by Language, then it is returned in\r |
| e386b444 |
520 | UnicodeString.\r |
| 521 | \r |
| dd51a993 |
522 | @param Language A pointer to the ISO 639-2\r |
| 523 | language code for the Unicode\r |
| 524 | string to look up and return.\r |
| 525 | \r |
| 526 | @param SupportedLanguages A pointer to the set of ISO\r |
| 527 | 639-2language\r |
| 528 | codes that the Unicode string\r |
| 529 | table supports. Language must\r |
| 530 | be a member of this set.\r |
| 531 | \r |
| 532 | @param UnicodeStringTable A pointer to the table of\r |
| 533 | Unicode strings.\r |
| 534 | \r |
| 535 | @param UnicodeString A pointer to the Unicode\r |
| 536 | string from UnicodeStringTable\r |
| 537 | that matches the language\r |
| 538 | specified by Language.\r |
| 539 | \r |
| 540 | @retval EFI_SUCCESS The Unicode string that\r |
| 541 | matches the language specified\r |
| 542 | by Language was found in the\r |
| 543 | table of Unicoide strings\r |
| 544 | UnicodeStringTable, and it was\r |
| 545 | returned in UnicodeString.\r |
| 546 | \r |
| e386b444 |
547 | @retval EFI_INVALID_PARAMETER Language is NULL.\r |
| dd51a993 |
548 | \r |
| e386b444 |
549 | @retval EFI_INVALID_PARAMETER UnicodeString is NULL.\r |
| 550 | @retval EFI_UNSUPPORTED SupportedLanguages is NULL.\r |
| dd51a993 |
551 | \r |
| e386b444 |
552 | @retval EFI_UNSUPPORTED UnicodeStringTable is NULL.\r |
| dd51a993 |
553 | \r |
| 554 | @retval EFI_UNSUPPORTED The language specified by\r |
| 555 | Language is not a member\r |
| 556 | ofSupportedLanguages.\r |
| 557 | \r |
| 558 | @retval EFI_UNSUPPORTED The language specified by\r |
| 559 | Language is not supported by\r |
| 560 | UnicodeStringTable.\r |
| e386b444 |
561 | \r |
| 562 | **/\r |
| 563 | EFI_STATUS\r |
| 564 | EFIAPI\r |
| 565 | LookupUnicodeString (\r |
| 566 | IN CONST CHAR8 *Language,\r |
| 567 | IN CONST CHAR8 *SupportedLanguages,\r |
| 568 | IN CONST EFI_UNICODE_STRING_TABLE *UnicodeStringTable,\r |
| 569 | OUT CHAR16 **UnicodeString\r |
| 570 | )\r |
| 571 | {\r |
| 572 | //\r |
| 573 | // Make sure the parameters are valid\r |
| 574 | //\r |
| 575 | if (Language == NULL || UnicodeString == NULL) {\r |
| 576 | return EFI_INVALID_PARAMETER;\r |
| 577 | }\r |
| 578 | \r |
| 579 | //\r |
| 580 | // If there are no supported languages, or the Unicode String Table is empty, then the\r |
| 581 | // Unicode String specified by Language is not supported by this Unicode String Table\r |
| 582 | //\r |
| 583 | if (SupportedLanguages == NULL || UnicodeStringTable == NULL) {\r |
| 584 | return EFI_UNSUPPORTED;\r |
| 585 | }\r |
| 586 | \r |
| 587 | //\r |
| 588 | // Make sure Language is in the set of Supported Languages\r |
| 589 | //\r |
| 590 | while (*SupportedLanguages != 0) {\r |
| 591 | if (CompareIso639LanguageCode (Language, SupportedLanguages)) {\r |
| 592 | \r |
| 593 | //\r |
| 594 | // Search the Unicode String Table for the matching Language specifier\r |
| 595 | //\r |
| 596 | while (UnicodeStringTable->Language != NULL) {\r |
| 597 | if (CompareIso639LanguageCode (Language, UnicodeStringTable->Language)) {\r |
| 598 | \r |
| 599 | //\r |
| 600 | // A matching string was found, so return it\r |
| 601 | //\r |
| 602 | *UnicodeString = UnicodeStringTable->UnicodeString;\r |
| 603 | return EFI_SUCCESS;\r |
| 604 | }\r |
| 605 | \r |
| 606 | UnicodeStringTable++;\r |
| 607 | }\r |
| 608 | \r |
| 609 | return EFI_UNSUPPORTED;\r |
| 610 | }\r |
| 611 | \r |
| 612 | SupportedLanguages += 3;\r |
| 613 | }\r |
| 614 | \r |
| 615 | return EFI_UNSUPPORTED;\r |
| 616 | }\r |
| 617 | \r |
| dd51a993 |
618 | \r |
| 619 | \r |
| e386b444 |
620 | /**\r |
| dd51a993 |
621 | This function looks up a Unicode string in UnicodeStringTable.\r |
| 622 | If Language is a member of SupportedLanguages and a Unicode\r |
| 623 | string is found in UnicodeStringTable that matches the\r |
| 624 | language code specified by Language, then it is returned in\r |
| 625 | UnicodeString.\r |
| 626 | \r |
| 627 | @param Language A pointer to the ISO 639-2 or\r |
| 628 | RFC 3066 language code for the\r |
| 629 | Unicode string to look up and\r |
| 630 | return.\r |
| 631 | \r |
| 632 | @param SupportedLanguages A pointer to the set of ISO\r |
| 633 | 639-2 or RFC 3066 language\r |
| 634 | codes that the Unicode string\r |
| 635 | table supports. Language must\r |
| 636 | be a member of this set.\r |
| 637 | \r |
| 638 | @param UnicodeStringTable A pointer to the table of\r |
| 639 | Unicode strings.\r |
| 640 | \r |
| 641 | @param UnicodeString A pointer to the Unicode\r |
| 642 | string from UnicodeStringTable\r |
| 643 | that matches the language\r |
| 644 | specified by Language.\r |
| 645 | \r |
| 646 | @param Iso639Language Specify the language code\r |
| 647 | format supported. If true,\r |
| 648 | then the format follow ISO\r |
| 649 | 639-2. If false, then it\r |
| 650 | follows RFC3066.\r |
| 651 | \r |
| 652 | @retval EFI_SUCCESS The Unicode string that\r |
| 653 | matches the language specified\r |
| 654 | by Language was found in the\r |
| 655 | table of Unicoide strings\r |
| 656 | UnicodeStringTable, and it was\r |
| 657 | returned in UnicodeString.\r |
| 658 | \r |
| 659 | @retval EFI_INVALID_PARAMETER Language is NULL.\r |
| 660 | \r |
| 661 | @retval EFI_INVALID_PARAMETER UnicodeString is NULL.\r |
| 662 | \r |
| 663 | @retval EFI_UNSUPPORTED SupportedLanguages is NULL.\r |
| 664 | \r |
| 665 | @retval EFI_UNSUPPORTED UnicodeStringTable is NULL.\r |
| 666 | \r |
| 667 | @retval EFI_UNSUPPORTED The language specified by\r |
| 668 | Language is not a member\r |
| 669 | ofSupportedLanguages.\r |
| 670 | \r |
| 671 | @retval EFI_UNSUPPORTED The language specified by\r |
| 672 | Language is not supported by\r |
| 673 | UnicodeStringTable.\r |
| 674 | \r |
| 675 | **/\r |
| 676 | EFI_STATUS\r |
| 677 | EFIAPI\r |
| 678 | LookupUnicodeString2 (\r |
| 679 | IN CONST CHAR8 *Language,\r |
| 680 | IN CONST CHAR8 *SupportedLanguages,\r |
| 681 | IN CONST EFI_UNICODE_STRING_TABLE *UnicodeStringTable,\r |
| 682 | OUT CHAR16 **UnicodeString,\r |
| 683 | IN BOOLEAN Iso639Language\r |
| 684 | )\r |
| 685 | {\r |
| 686 | BOOLEAN Found;\r |
| 687 | UINTN Index;\r |
| 688 | CHAR8 *LanguageString;\r |
| 689 | \r |
| 690 | //\r |
| 691 | // Make sure the parameters are valid\r |
| 692 | //\r |
| 693 | if (Language == NULL || UnicodeString == NULL) {\r |
| 694 | return EFI_INVALID_PARAMETER;\r |
| 695 | }\r |
| 696 | \r |
| 697 | //\r |
| 698 | // If there are no supported languages, or the Unicode String Table is empty, then the\r |
| 699 | // Unicode String specified by Language is not supported by this Unicode String Table\r |
| 700 | //\r |
| 701 | if (SupportedLanguages == NULL || UnicodeStringTable == NULL) {\r |
| 702 | return EFI_UNSUPPORTED;\r |
| 703 | }\r |
| 704 | \r |
| 705 | //\r |
| 706 | // Make sure Language is in the set of Supported Languages\r |
| 707 | //\r |
| 708 | Found = FALSE;\r |
| 709 | while (*SupportedLanguages != 0) {\r |
| 710 | if (Iso639Language) {\r |
| 711 | if (CompareIso639LanguageCode (Language, SupportedLanguages)) {\r |
| 712 | Found = TRUE;\r |
| 713 | break;\r |
| 714 | }\r |
| 715 | SupportedLanguages += 3;\r |
| 716 | } else {\r |
| 717 | for (Index = 0; SupportedLanguages[Index] != 0 && SupportedLanguages[Index] != ';'; Index++);\r |
| 718 | if (AsciiStrnCmp(SupportedLanguages, Language, Index) == 0) {\r |
| 719 | Found = TRUE;\r |
| 720 | break;\r |
| 721 | }\r |
| 722 | SupportedLanguages += Index;\r |
| 723 | for (; *SupportedLanguages != 0 && *SupportedLanguages == ';'; SupportedLanguages++);\r |
| 724 | }\r |
| 725 | }\r |
| 726 | \r |
| 727 | //\r |
| 728 | // If Language is not a member of SupportedLanguages, then return EFI_UNSUPPORTED\r |
| 729 | //\r |
| 730 | if (!Found) {\r |
| 731 | return EFI_UNSUPPORTED;\r |
| 732 | }\r |
| 733 | \r |
| 734 | //\r |
| 735 | // Search the Unicode String Table for the matching Language specifier\r |
| 736 | //\r |
| 737 | while (UnicodeStringTable->Language != NULL) {\r |
| 738 | LanguageString = UnicodeStringTable->Language;\r |
| 739 | while (0 != *LanguageString) {\r |
| 740 | for (Index = 0 ;LanguageString[Index] != 0 && LanguageString[Index] != ';'; Index++);\r |
| 741 | if (AsciiStrnCmp(LanguageString, Language, Index) == 0) {\r |
| 742 | *UnicodeString = UnicodeStringTable->UnicodeString;\r |
| 743 | return EFI_SUCCESS;\r |
| 744 | }\r |
| 745 | LanguageString += Index;\r |
| 746 | for (Index = 0 ;LanguageString[Index] != 0 && LanguageString[Index] == ';'; Index++);\r |
| 747 | }\r |
| 748 | UnicodeStringTable++;\r |
| 749 | }\r |
| 750 | \r |
| 751 | return EFI_UNSUPPORTED;\r |
| 752 | }\r |
| 753 | \r |
| 754 | \r |
| 755 | /**\r |
| 756 | \r |
| e386b444 |
757 | This function adds a Unicode string to UnicodeStringTable.\r |
| dd51a993 |
758 | If Language is a member of SupportedLanguages then\r |
| 759 | UnicodeString is added to UnicodeStringTable. New buffers are\r |
| 760 | allocated for both Language and UnicodeString. The contents\r |
| 761 | of Language and UnicodeString are copied into these new\r |
| 762 | buffers. These buffers are automatically freed when\r |
| e386b444 |
763 | FreeUnicodeStringTable() is called.\r |
| 764 | \r |
| dd51a993 |
765 | @param Language A pointer to the ISO 639-2\r |
| 766 | language code for the Unicode\r |
| e386b444 |
767 | string to add.\r |
| dd51a993 |
768 | \r |
| 769 | @param SupportedLanguages A pointer to the set of ISO\r |
| 770 | 639-2 language codes that the\r |
| 771 | Unicode string table supports.\r |
| 772 | Language must be a member of\r |
| 773 | this set.\r |
| 774 | \r |
| 775 | @param UnicodeStringTable A pointer to the table of\r |
| 776 | Unicode strings.\r |
| 777 | \r |
| 778 | @param UnicodeString A pointer to the Unicode\r |
| 779 | string to add.\r |
| 780 | \r |
| 781 | @retval EFI_SUCCESS The Unicode string that\r |
| 782 | matches the language specified\r |
| 783 | by Language was found in the\r |
| 784 | table of Unicode strings\r |
| 785 | UnicodeStringTable, and it was\r |
| e386b444 |
786 | returned in UnicodeString.\r |
| dd51a993 |
787 | \r |
| e386b444 |
788 | @retval EFI_INVALID_PARAMETER Language is NULL.\r |
| dd51a993 |
789 | \r |
| e386b444 |
790 | @retval EFI_INVALID_PARAMETER UnicodeString is NULL.\r |
| dd51a993 |
791 | \r |
| e386b444 |
792 | @retval EFI_INVALID_PARAMETER UnicodeString is an empty string.\r |
| dd51a993 |
793 | \r |
| e386b444 |
794 | @retval EFI_UNSUPPORTED SupportedLanguages is NULL.\r |
| dd51a993 |
795 | \r |
| 796 | @retval EFI_ALREADY_STARTED A Unicode string with language\r |
| 797 | Language is already present in\r |
| 798 | UnicodeStringTable.\r |
| 799 | \r |
| 800 | @retval EFI_OUT_OF_RESOURCES There is not enough memory to\r |
| 801 | add another Unicode string to\r |
| 802 | UnicodeStringTable.\r |
| 803 | \r |
| 804 | @retval EFI_UNSUPPORTED The language specified by\r |
| 805 | Language is not a member of\r |
| 806 | SupportedLanguages.\r |
| e386b444 |
807 | \r |
| 808 | **/\r |
| 809 | EFI_STATUS\r |
| 810 | EFIAPI\r |
| 811 | AddUnicodeString (\r |
| 812 | IN CONST CHAR8 *Language,\r |
| 813 | IN CONST CHAR8 *SupportedLanguages,\r |
| 814 | IN EFI_UNICODE_STRING_TABLE **UnicodeStringTable,\r |
| 815 | IN CONST CHAR16 *UnicodeString\r |
| 816 | )\r |
| 817 | {\r |
| 818 | UINTN NumberOfEntries;\r |
| 819 | EFI_UNICODE_STRING_TABLE *OldUnicodeStringTable;\r |
| 820 | EFI_UNICODE_STRING_TABLE *NewUnicodeStringTable;\r |
| 821 | UINTN UnicodeStringLength;\r |
| 822 | \r |
| 823 | //\r |
| 824 | // Make sure the parameter are valid\r |
| 825 | //\r |
| 826 | if (Language == NULL || UnicodeString == NULL || UnicodeStringTable == NULL) {\r |
| 827 | return EFI_INVALID_PARAMETER;\r |
| 828 | }\r |
| 829 | \r |
| 830 | //\r |
| 831 | // If there are no supported languages, then a Unicode String can not be added\r |
| 832 | //\r |
| 833 | if (SupportedLanguages == NULL) {\r |
| 834 | return EFI_UNSUPPORTED;\r |
| 835 | }\r |
| 836 | \r |
| 837 | //\r |
| 838 | // If the Unicode String is empty, then a Unicode String can not be added\r |
| 839 | //\r |
| 840 | if (UnicodeString[0] == 0) {\r |
| 841 | return EFI_INVALID_PARAMETER;\r |
| 842 | }\r |
| 843 | \r |
| 844 | //\r |
| 845 | // Make sure Language is a member of SupportedLanguages\r |
| 846 | //\r |
| 847 | while (*SupportedLanguages != 0) {\r |
| 848 | if (CompareIso639LanguageCode (Language, SupportedLanguages)) {\r |
| 849 | \r |
| 850 | //\r |
| 851 | // Determine the size of the Unicode String Table by looking for a NULL Language entry\r |
| 852 | //\r |
| 853 | NumberOfEntries = 0;\r |
| 854 | if (*UnicodeStringTable != NULL) {\r |
| 855 | OldUnicodeStringTable = *UnicodeStringTable;\r |
| 856 | while (OldUnicodeStringTable->Language != NULL) {\r |
| 857 | if (CompareIso639LanguageCode (Language, OldUnicodeStringTable->Language)) {\r |
| 858 | return EFI_ALREADY_STARTED;\r |
| 859 | }\r |
| 860 | \r |
| 861 | OldUnicodeStringTable++;\r |
| 862 | NumberOfEntries++;\r |
| 863 | }\r |
| 864 | }\r |
| 865 | \r |
| 866 | //\r |
| 867 | // Allocate space for a new Unicode String Table. It must hold the current number of\r |
| 868 | // entries, plus 1 entry for the new Unicode String, plus 1 entry for the end of table\r |
| 869 | // marker\r |
| 870 | //\r |
| 871 | NewUnicodeStringTable = AllocatePool ((NumberOfEntries + 2) * sizeof (EFI_UNICODE_STRING_TABLE));\r |
| 872 | if (NewUnicodeStringTable == NULL) {\r |
| 873 | return EFI_OUT_OF_RESOURCES;\r |
| 874 | }\r |
| 875 | \r |
| 876 | //\r |
| 877 | // If the current Unicode String Table contains any entries, then copy them to the\r |
| 878 | // newly allocated Unicode String Table.\r |
| 879 | //\r |
| 880 | if (*UnicodeStringTable != NULL) {\r |
| 881 | CopyMem (\r |
| 882 | NewUnicodeStringTable,\r |
| 883 | *UnicodeStringTable,\r |
| 884 | NumberOfEntries * sizeof (EFI_UNICODE_STRING_TABLE)\r |
| 885 | );\r |
| 886 | }\r |
| 887 | \r |
| 888 | //\r |
| 889 | // Allocate space for a copy of the Language specifier\r |
| 890 | //\r |
| 891 | NewUnicodeStringTable[NumberOfEntries].Language = AllocateCopyPool (3, Language);\r |
| 892 | if (NewUnicodeStringTable[NumberOfEntries].Language == NULL) {\r |
| 893 | gBS->FreePool (NewUnicodeStringTable);\r |
| 894 | return EFI_OUT_OF_RESOURCES;\r |
| 895 | }\r |
| 896 | \r |
| 897 | //\r |
| 898 | // Compute the length of the Unicode String\r |
| 899 | //\r |
| 900 | for (UnicodeStringLength = 0; UnicodeString[UnicodeStringLength] != 0; UnicodeStringLength++)\r |
| 901 | ;\r |
| 902 | \r |
| 903 | //\r |
| 904 | // Allocate space for a copy of the Unicode String\r |
| 905 | //\r |
| 906 | NewUnicodeStringTable[NumberOfEntries].UnicodeString = AllocateCopyPool (\r |
| 907 | (UnicodeStringLength + 1) * sizeof (CHAR16),\r |
| 908 | UnicodeString\r |
| 909 | );\r |
| 910 | if (NewUnicodeStringTable[NumberOfEntries].UnicodeString == NULL) {\r |
| 911 | gBS->FreePool (NewUnicodeStringTable[NumberOfEntries].Language);\r |
| 912 | gBS->FreePool (NewUnicodeStringTable);\r |
| 913 | return EFI_OUT_OF_RESOURCES;\r |
| 914 | }\r |
| 915 | \r |
| 916 | //\r |
| 917 | // Mark the end of the Unicode String Table\r |
| 918 | //\r |
| 919 | NewUnicodeStringTable[NumberOfEntries + 1].Language = NULL;\r |
| 920 | NewUnicodeStringTable[NumberOfEntries + 1].UnicodeString = NULL;\r |
| 921 | \r |
| 922 | //\r |
| 923 | // Free the old Unicode String Table\r |
| 924 | //\r |
| 925 | if (*UnicodeStringTable != NULL) {\r |
| 926 | gBS->FreePool (*UnicodeStringTable);\r |
| 927 | }\r |
| 928 | \r |
| 929 | //\r |
| 930 | // Point UnicodeStringTable at the newly allocated Unicode String Table\r |
| 931 | //\r |
| 932 | *UnicodeStringTable = NewUnicodeStringTable;\r |
| 933 | \r |
| 934 | return EFI_SUCCESS;\r |
| 935 | }\r |
| 936 | \r |
| 937 | SupportedLanguages += 3;\r |
| 938 | }\r |
| 939 | \r |
| 940 | return EFI_UNSUPPORTED;\r |
| 941 | }\r |
| 942 | \r |
| dd51a993 |
943 | \r |
| 944 | /**\r |
| 945 | \r |
| 946 | This function adds a Unicode string to UnicodeStringTable.\r |
| 947 | If Language is a member of SupportedLanguages then\r |
| 948 | UnicodeString is added to UnicodeStringTable. New buffers are\r |
| 949 | allocated for both Language and UnicodeString. The contents\r |
| 950 | of Language and UnicodeString are copied into these new\r |
| 951 | buffers. These buffers are automatically freed when\r |
| 952 | FreeUnicodeStringTable() is called.\r |
| 953 | \r |
| 954 | @param Language A pointer to the ISO 639-2 or\r |
| 955 | RFC 3066 language code for the\r |
| 956 | Unicode string to add.\r |
| 957 | \r |
| 958 | @param SupportedLanguages A pointer to the set of ISO\r |
| 959 | 639-2 or RFC 3.66 language\r |
| 960 | codes that the Unicode string\r |
| 961 | table supports. Language must\r |
| 962 | be a member of this set.\r |
| 963 | \r |
| 964 | @param UnicodeStringTable A pointer to the table of\r |
| 965 | Unicode strings.\r |
| 966 | \r |
| 967 | @param UnicodeString A pointer to the Unicode\r |
| 968 | string to add.\r |
| 969 | \r |
| 970 | @param Iso639Language Specify the language code\r |
| 971 | format supported. If true,\r |
| 972 | then the format follow ISO\r |
| 973 | 639-2. If false, then it\r |
| 974 | follows RFC3066.\r |
| 975 | \r |
| 976 | @retval EFI_SUCCESS The Unicode string that\r |
| 977 | matches the language specified\r |
| 978 | by Language was found in the\r |
| 979 | table of Unicode strings\r |
| 980 | UnicodeStringTable, and it was\r |
| 981 | returned in UnicodeString.\r |
| 982 | \r |
| 983 | @retval EFI_INVALID_PARAMETER Language is NULL.\r |
| 984 | \r |
| 985 | @retval EFI_INVALID_PARAMETER UnicodeString is NULL.\r |
| 986 | \r |
| 987 | @retval EFI_INVALID_PARAMETER UnicodeString is an empty string.\r |
| 988 | \r |
| 989 | @retval EFI_UNSUPPORTED SupportedLanguages is NULL.\r |
| 990 | \r |
| 991 | @retval EFI_ALREADY_STARTED A Unicode string with language\r |
| 992 | Language is already present in\r |
| 993 | UnicodeStringTable.\r |
| 994 | \r |
| 995 | @retval EFI_OUT_OF_RESOURCES There is not enough memory to\r |
| 996 | add another Unicode string to\r |
| 997 | UnicodeStringTable.\r |
| 998 | \r |
| 999 | @retval EFI_UNSUPPORTED The language specified by\r |
| 1000 | Language is not a member of\r |
| 1001 | SupportedLanguages.\r |
| 1002 | \r |
| 1003 | **/\r |
| 1004 | EFI_STATUS\r |
| 1005 | EFIAPI\r |
| 1006 | AddUnicodeString2 (\r |
| 1007 | IN CONST CHAR8 *Language,\r |
| 1008 | IN CONST CHAR8 *SupportedLanguages,\r |
| 1009 | IN EFI_UNICODE_STRING_TABLE **UnicodeStringTable,\r |
| 1010 | IN CONST CHAR16 *UnicodeString,\r |
| 1011 | IN BOOLEAN Iso639Language\r |
| 1012 | )\r |
| 1013 | {\r |
| 1014 | UINTN NumberOfEntries;\r |
| 1015 | EFI_UNICODE_STRING_TABLE *OldUnicodeStringTable;\r |
| 1016 | EFI_UNICODE_STRING_TABLE *NewUnicodeStringTable;\r |
| 1017 | UINTN UnicodeStringLength;\r |
| 1018 | BOOLEAN Found;\r |
| 1019 | UINTN Index;\r |
| 1020 | CHAR8 *LanguageString;\r |
| 1021 | \r |
| 1022 | //\r |
| 1023 | // Make sure the parameter are valid\r |
| 1024 | //\r |
| 1025 | if (Language == NULL || UnicodeString == NULL || UnicodeStringTable == NULL) {\r |
| 1026 | return EFI_INVALID_PARAMETER;\r |
| 1027 | }\r |
| 1028 | \r |
| 1029 | //\r |
| 1030 | // If there are no supported languages, then a Unicode String can not be added\r |
| 1031 | //\r |
| 1032 | if (SupportedLanguages == NULL) {\r |
| 1033 | return EFI_UNSUPPORTED;\r |
| 1034 | }\r |
| 1035 | \r |
| 1036 | //\r |
| 1037 | // If the Unicode String is empty, then a Unicode String can not be added\r |
| 1038 | //\r |
| 1039 | if (UnicodeString[0] == 0) {\r |
| 1040 | return EFI_INVALID_PARAMETER;\r |
| 1041 | }\r |
| 1042 | \r |
| 1043 | //\r |
| 1044 | // Make sure Language is a member of SupportedLanguages\r |
| 1045 | //\r |
| 1046 | Found = FALSE;\r |
| 1047 | while (*SupportedLanguages != 0) {\r |
| 1048 | if (Iso639Language) {\r |
| 1049 | if (CompareIso639LanguageCode (Language, SupportedLanguages)) {\r |
| 1050 | Found = TRUE;\r |
| 1051 | break;\r |
| 1052 | }\r |
| 1053 | SupportedLanguages += 3;\r |
| 1054 | } else {\r |
| 1055 | for (Index = 0; SupportedLanguages[Index] != 0 && SupportedLanguages[Index] != ';'; Index++);\r |
| 1056 | if (AsciiStrnCmp(SupportedLanguages, Language, Index) == 0) {\r |
| 1057 | Found = TRUE;\r |
| 1058 | break;\r |
| 1059 | }\r |
| 1060 | SupportedLanguages += Index;\r |
| 1061 | for (; *SupportedLanguages != 0 && *SupportedLanguages == ';'; SupportedLanguages++);\r |
| 1062 | }\r |
| 1063 | }\r |
| 1064 | \r |
| 1065 | //\r |
| 1066 | // If Language is not a member of SupportedLanguages, then return EFI_UNSUPPORTED\r |
| 1067 | //\r |
| 1068 | if (!Found) {\r |
| 1069 | return EFI_UNSUPPORTED;\r |
| 1070 | }\r |
| 1071 | \r |
| 1072 | //\r |
| 1073 | // Determine the size of the Unicode String Table by looking for a NULL Language entry\r |
| 1074 | //\r |
| 1075 | NumberOfEntries = 0;\r |
| 1076 | if (*UnicodeStringTable != NULL) {\r |
| 1077 | OldUnicodeStringTable = *UnicodeStringTable;\r |
| 1078 | while (OldUnicodeStringTable->Language != NULL) {\r |
| 1079 | LanguageString = OldUnicodeStringTable->Language;\r |
| 1080 | \r |
| 1081 | while (*LanguageString) {\r |
| 1082 | for (Index = 0; LanguageString[Index] != 0 && LanguageString[Index] != ';'; Index++);\r |
| 1083 | \r |
| 1084 | if (AsciiStrnCmp (Language, LanguageString, Index) == 0) { \r |
| 1085 | return EFI_ALREADY_STARTED;\r |
| 1086 | }\r |
| 1087 | LanguageString += Index;\r |
| 1088 | for (; *LanguageString != 0 && *LanguageString == ';'; LanguageString++);\r |
| 1089 | }\r |
| 1090 | OldUnicodeStringTable++;\r |
| 1091 | NumberOfEntries++;\r |
| 1092 | }\r |
| 1093 | }\r |
| 1094 | \r |
| 1095 | //\r |
| 1096 | // Allocate space for a new Unicode String Table. It must hold the current number of\r |
| 1097 | // entries, plus 1 entry for the new Unicode String, plus 1 entry for the end of table\r |
| 1098 | // marker\r |
| 1099 | //\r |
| 1100 | NewUnicodeStringTable = AllocatePool ((NumberOfEntries + 2) * sizeof (EFI_UNICODE_STRING_TABLE));\r |
| 1101 | if (NewUnicodeStringTable == NULL) {\r |
| 1102 | return EFI_OUT_OF_RESOURCES;\r |
| 1103 | }\r |
| 1104 | \r |
| 1105 | //\r |
| 1106 | // If the current Unicode String Table contains any entries, then copy them to the\r |
| 1107 | // newly allocated Unicode String Table.\r |
| 1108 | //\r |
| 1109 | if (*UnicodeStringTable != NULL) {\r |
| 1110 | CopyMem (\r |
| 1111 | NewUnicodeStringTable,\r |
| 1112 | *UnicodeStringTable,\r |
| 1113 | NumberOfEntries * sizeof (EFI_UNICODE_STRING_TABLE)\r |
| 1114 | );\r |
| 1115 | }\r |
| 1116 | \r |
| 1117 | //\r |
| 1118 | // Allocate space for a copy of the Language specifier\r |
| 1119 | //\r |
| 1120 | NewUnicodeStringTable[NumberOfEntries].Language = AllocateCopyPool (AsciiStrSize(Language), Language);\r |
| 1121 | if (NewUnicodeStringTable[NumberOfEntries].Language == NULL) {\r |
| 1122 | gBS->FreePool (NewUnicodeStringTable);\r |
| 1123 | return EFI_OUT_OF_RESOURCES;\r |
| 1124 | }\r |
| 1125 | \r |
| 1126 | //\r |
| 1127 | // Compute the length of the Unicode String\r |
| 1128 | //\r |
| 1129 | for (UnicodeStringLength = 0; UnicodeString[UnicodeStringLength] != 0; UnicodeStringLength++);\r |
| 1130 | \r |
| 1131 | //\r |
| 1132 | // Allocate space for a copy of the Unicode String\r |
| 1133 | //\r |
| 1134 | NewUnicodeStringTable[NumberOfEntries].UnicodeString = AllocateCopyPool (StrSize (UnicodeString), UnicodeString);\r |
| 1135 | if (NewUnicodeStringTable[NumberOfEntries].UnicodeString == NULL) {\r |
| 1136 | gBS->FreePool (NewUnicodeStringTable[NumberOfEntries].Language);\r |
| 1137 | gBS->FreePool (NewUnicodeStringTable);\r |
| 1138 | return EFI_OUT_OF_RESOURCES;\r |
| 1139 | }\r |
| 1140 | \r |
| 1141 | //\r |
| 1142 | // Mark the end of the Unicode String Table\r |
| 1143 | //\r |
| 1144 | NewUnicodeStringTable[NumberOfEntries + 1].Language = NULL;\r |
| 1145 | NewUnicodeStringTable[NumberOfEntries + 1].UnicodeString = NULL;\r |
| 1146 | \r |
| 1147 | //\r |
| 1148 | // Free the old Unicode String Table\r |
| 1149 | //\r |
| 1150 | if (*UnicodeStringTable != NULL) {\r |
| 1151 | gBS->FreePool (*UnicodeStringTable);\r |
| 1152 | }\r |
| 1153 | \r |
| 1154 | //\r |
| 1155 | // Point UnicodeStringTable at the newly allocated Unicode String Table\r |
| 1156 | //\r |
| 1157 | *UnicodeStringTable = NewUnicodeStringTable;\r |
| 1158 | \r |
| 1159 | return EFI_SUCCESS;\r |
| 1160 | }\r |
| 1161 | \r |
| e386b444 |
1162 | /**\r |
| 1163 | This function frees the table of Unicode strings in UnicodeStringTable.\r |
| 1164 | If UnicodeStringTable is NULL, then EFI_SUCCESS is returned.\r |
| dd51a993 |
1165 | Otherwise, each language code, and each Unicode string in the Unicode string \r |
| e386b444 |
1166 | table are freed, and EFI_SUCCESS is returned.\r |
| 1167 | \r |
| 1168 | @param UnicodeStringTable A pointer to the table of Unicode strings.\r |
| 1169 | \r |
| 1170 | @retval EFI_SUCCESS The Unicode string table was freed.\r |
| 1171 | \r |
| 1172 | **/\r |
| 1173 | EFI_STATUS\r |
| 1174 | EFIAPI\r |
| 1175 | FreeUnicodeStringTable (\r |
| 1176 | IN EFI_UNICODE_STRING_TABLE *UnicodeStringTable\r |
| 1177 | )\r |
| 1178 | {\r |
| 1179 | UINTN Index;\r |
| 1180 | \r |
| 1181 | //\r |
| 1182 | // If the Unicode String Table is NULL, then it is already freed\r |
| 1183 | //\r |
| 1184 | if (UnicodeStringTable == NULL) {\r |
| 1185 | return EFI_SUCCESS;\r |
| 1186 | }\r |
| 1187 | \r |
| 1188 | //\r |
| 1189 | // Loop through the Unicode String Table until we reach the end of table marker\r |
| 1190 | //\r |
| 1191 | for (Index = 0; UnicodeStringTable[Index].Language != NULL; Index++) {\r |
| 1192 | \r |
| 1193 | //\r |
| 1194 | // Free the Language string from the Unicode String Table\r |
| 1195 | //\r |
| 1196 | gBS->FreePool (UnicodeStringTable[Index].Language);\r |
| 1197 | \r |
| 1198 | //\r |
| 1199 | // Free the Unicode String from the Unicode String Table\r |
| 1200 | //\r |
| 1201 | if (UnicodeStringTable[Index].UnicodeString != NULL) {\r |
| 1202 | gBS->FreePool (UnicodeStringTable[Index].UnicodeString);\r |
| 1203 | }\r |
| 1204 | }\r |
| 1205 | \r |
| 1206 | //\r |
| 1207 | // Free the Unicode String Table itself\r |
| 1208 | //\r |
| 1209 | gBS->FreePool (UnicodeStringTable);\r |
| 1210 | \r |
| 1211 | return EFI_SUCCESS;\r |
| 1212 | }\r |
| 1213 | \r |
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