| | 1 | /** @file PCD PEIM\r |
| | 2 | \r |
| | 3 | Copyright (c) 2006, Intel Corporation \r |
| | 4 | All rights reserved. This program and the accompanying materials \r |
| | 5 | are licensed and made available under the terms and conditions of the BSD License \r |
| | 6 | which accompanies this distribution. The full text of the license may be found at \r |
| | 7 | http://opensource.org/licenses/bsd-license.php \r |
| | 8 | \r |
| | 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
| | 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
| | 11 | \r |
| | 12 | \r |
| | 13 | Module Name: Pcd.c\r |
| | 14 | \r |
| | 15 | **/\r |
| | 16 | \r |
| | 17 | #include "Service.h"\r |
| | 18 | \r |
| | 19 | \r |
| | 20 | PCD_PPI mPcdPpiInstance = {\r |
| | 21 | PeiPcdSetSku,\r |
| | 22 | \r |
| | 23 | PeiPcdGet8,\r |
| | 24 | PeiPcdGet16, \r |
| | 25 | PeiPcdGet32, \r |
| | 26 | PeiPcdGet64, \r |
| | 27 | PeiPcdGetPtr, \r |
| | 28 | PeiPcdGetBool, \r |
| | 29 | PeiPcdGetSize,\r |
| | 30 | \r |
| | 31 | PeiPcdGet8Ex,\r |
| | 32 | PeiPcdGet16Ex, \r |
| | 33 | PeiPcdGet32Ex, \r |
| | 34 | PeiPcdGet64Ex, \r |
| | 35 | PeiPcdGetPtrEx, \r |
| | 36 | PeiPcdGetBoolEx, \r |
| | 37 | PeiPcdGetSizeEx,\r |
| | 38 | \r |
| | 39 | PeiPcdSet8,\r |
| | 40 | PeiPcdSet16, \r |
| | 41 | PeiPcdSet32, \r |
| | 42 | PeiPcdSet64, \r |
| | 43 | PeiPcdSetPtr, \r |
| | 44 | PeiPcdSetBool, \r |
| | 45 | \r |
| | 46 | PeiPcdSet8Ex,\r |
| | 47 | PeiPcdSet16Ex, \r |
| | 48 | PeiPcdSet32Ex, \r |
| | 49 | PeiPcdSet64Ex, \r |
| | 50 | PeiPcdSetPtrEx, \r |
| | 51 | PeiPcdSetBoolEx,\r |
| | 52 | \r |
| | 53 | PeiRegisterCallBackOnSet,\r |
| | 54 | PcdUnRegisterCallBackOnSet,\r |
| | 55 | PeiPcdGetNextToken,\r |
| | 56 | PeiPcdGetNextTokenSpace\r |
| | 57 | };\r |
| | 58 | \r |
| | 59 | \r |
| | 60 | \r |
| | 61 | STATIC EFI_PEI_PPI_DESCRIPTOR mPpiPCD = {\r |
| | 62 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r |
| | 63 | &gPcdPpiGuid,\r |
| | 64 | &mPcdPpiInstance\r |
| | 65 | };\r |
| | 66 | \r |
| | 67 | \r |
| | 68 | \r |
| | 69 | EFI_STATUS\r |
| | 70 | EFIAPI\r |
| | 71 | PcdPeimInit (\r |
| | 72 | IN EFI_FFS_FILE_HEADER *FfsHeader,\r |
| | 73 | IN EFI_PEI_SERVICES **PeiServices\r |
| | 74 | )\r |
| | 75 | {\r |
| | 76 | EFI_STATUS Status;\r |
| | 77 | \r |
| | 78 | BuildPcdDatabase ();\r |
| | 79 | \r |
| | 80 | Status = PeiServicesInstallPpi (&mPpiPCD);\r |
| | 81 | \r |
| | 82 | ASSERT_EFI_ERROR (Status);\r |
| | 83 | \r |
| | 84 | return EFI_SUCCESS;\r |
| | 85 | }\r |
| | 86 | \r |
| | 87 | VOID\r |
| | 88 | EFIAPI\r |
| | 89 | PeiPcdSetSku (\r |
| | 90 | IN UINTN SkuId\r |
| | 91 | )\r |
| | 92 | {\r |
| | 93 | \r |
| | 94 | GetPcdDatabase()->Init.SystemSkuId = (SKU_ID) SkuId;\r |
| | 95 | \r |
| | 96 | return;\r |
| | 97 | }\r |
| | 98 | \r |
| | 99 | \r |
| | 100 | \r |
| | 101 | UINT8\r |
| | 102 | EFIAPI\r |
| | 103 | PeiPcdGet8 (\r |
| | 104 | IN UINTN TokenNumber\r |
| | 105 | )\r |
| | 106 | {\r |
| | 107 | return *((UINT8 *) GetWorker (TokenNumber, sizeof (UINT8)));\r |
| | 108 | }\r |
| | 109 | \r |
| | 110 | \r |
| | 111 | \r |
| | 112 | UINT16\r |
| | 113 | EFIAPI\r |
| | 114 | PeiPcdGet16 (\r |
| | 115 | IN UINTN TokenNumber\r |
| | 116 | )\r |
| | 117 | {\r |
| | 118 | return ReadUnaligned16 (GetWorker (TokenNumber, sizeof (UINT16)));\r |
| | 119 | }\r |
| | 120 | \r |
| | 121 | \r |
| | 122 | \r |
| | 123 | UINT32\r |
| | 124 | EFIAPI\r |
| | 125 | PeiPcdGet32 (\r |
| | 126 | IN UINTN TokenNumber\r |
| | 127 | )\r |
| | 128 | {\r |
| | 129 | return ReadUnaligned32 (GetWorker (TokenNumber, sizeof (UINT32)));\r |
| | 130 | }\r |
| | 131 | \r |
| | 132 | \r |
| | 133 | \r |
| | 134 | UINT64\r |
| | 135 | EFIAPI\r |
| | 136 | PeiPcdGet64 (\r |
| | 137 | IN UINTN TokenNumber\r |
| | 138 | )\r |
| | 139 | {\r |
| | 140 | return ReadUnaligned64 (GetWorker (TokenNumber, sizeof (UINT64)));\r |
| | 141 | }\r |
| | 142 | \r |
| | 143 | \r |
| | 144 | \r |
| | 145 | VOID *\r |
| | 146 | EFIAPI\r |
| | 147 | PeiPcdGetPtr (\r |
| | 148 | IN UINTN TokenNumber\r |
| | 149 | )\r |
| | 150 | {\r |
| | 151 | return GetWorker (TokenNumber, 0);\r |
| | 152 | }\r |
| | 153 | \r |
| | 154 | \r |
| | 155 | \r |
| | 156 | BOOLEAN\r |
| | 157 | EFIAPI\r |
| | 158 | PeiPcdGetBool (\r |
| | 159 | IN UINTN TokenNumber\r |
| | 160 | )\r |
| | 161 | {\r |
| | 162 | return *((BOOLEAN *) GetWorker (TokenNumber, sizeof (BOOLEAN)));\r |
| | 163 | }\r |
| | 164 | \r |
| | 165 | \r |
| | 166 | \r |
| | 167 | UINTN\r |
| | 168 | EFIAPI\r |
| | 169 | PeiPcdGetSize (\r |
| | 170 | IN UINTN TokenNumber\r |
| | 171 | )\r |
| | 172 | {\r |
| | 173 | PEI_PCD_DATABASE *PeiPcdDb;\r |
| | 174 | UINTN Size;\r |
| | 175 | UINTN MaxSize;\r |
| | 176 | \r |
| | 177 | if (!FeaturePcdGet(PcdPeiPcdDatabaseGetSizeEnabled)) {\r |
| | 178 | return EFI_UNSUPPORTED;\r |
| | 179 | }\r |
| | 180 | \r |
| | 181 | PeiPcdDb = GetPcdDatabase ();\r |
| | 182 | //\r |
| | 183 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r |
| | 184 | // We have to decrement TokenNumber by 1 to make it usable\r |
| | 185 | // as the array index.\r |
| | 186 | //\r |
| | 187 | TokenNumber--;\r |
| | 188 | \r |
| | 189 | // EBC compiler is very choosy. It may report warning about comparison\r |
| | 190 | // between UINTN and 0 . So we add 1 in each size of the \r |
| | 191 | // comparison.\r |
| | 192 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r |
| | 193 | \r |
| | 194 | Size = (PeiPcdDb->Init.LocalTokenNumberTable[TokenNumber] & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r |
| | 195 | \r |
| | 196 | if (Size == 0) {\r |
| | 197 | //\r |
| | 198 | // For pointer type, we need to scan the SIZE_TABLE to get the current size.\r |
| | 199 | //\r |
| | 200 | return GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r |
| | 201 | } else {\r |
| | 202 | return Size;\r |
| | 203 | }\r |
| | 204 | \r |
| | 205 | }\r |
| | 206 | \r |
| | 207 | \r |
| | 208 | \r |
| | 209 | UINT8\r |
| | 210 | EFIAPI\r |
| | 211 | PeiPcdGet8Ex (\r |
| | 212 | IN CONST EFI_GUID *Guid,\r |
| | 213 | IN UINTN ExTokenNumber\r |
| | 214 | )\r |
| | 215 | {\r |
| | 216 | return *((UINT8 *) ExGetWorker (Guid, ExTokenNumber, sizeof (UINT8)));\r |
| | 217 | }\r |
| | 218 | \r |
| | 219 | \r |
| | 220 | \r |
| | 221 | UINT16\r |
| | 222 | EFIAPI\r |
| | 223 | PeiPcdGet16Ex (\r |
| | 224 | IN CONST EFI_GUID *Guid,\r |
| | 225 | IN UINTN ExTokenNumber\r |
| | 226 | )\r |
| | 227 | {\r |
| | 228 | return ReadUnaligned16 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT16)));\r |
| | 229 | }\r |
| | 230 | \r |
| | 231 | \r |
| | 232 | \r |
| | 233 | UINT32\r |
| | 234 | EFIAPI\r |
| | 235 | PeiPcdGet32Ex (\r |
| | 236 | IN CONST EFI_GUID *Guid,\r |
| | 237 | IN UINTN ExTokenNumber\r |
| | 238 | )\r |
| | 239 | {\r |
| | 240 | return ReadUnaligned32 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT32)));\r |
| | 241 | }\r |
| | 242 | \r |
| | 243 | \r |
| | 244 | \r |
| | 245 | UINT64\r |
| | 246 | EFIAPI\r |
| | 247 | PeiPcdGet64Ex (\r |
| | 248 | IN CONST EFI_GUID *Guid,\r |
| | 249 | IN UINTN ExTokenNumber\r |
| | 250 | )\r |
| | 251 | {\r |
| | 252 | return ReadUnaligned64 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT64)));\r |
| | 253 | }\r |
| | 254 | \r |
| | 255 | \r |
| | 256 | \r |
| | 257 | VOID *\r |
| | 258 | EFIAPI\r |
| | 259 | PeiPcdGetPtrEx (\r |
| | 260 | IN CONST EFI_GUID *Guid,\r |
| | 261 | IN UINTN ExTokenNumber\r |
| | 262 | )\r |
| | 263 | {\r |
| | 264 | return ExGetWorker (Guid, ExTokenNumber, 0);\r |
| | 265 | }\r |
| | 266 | \r |
| | 267 | \r |
| | 268 | \r |
| | 269 | BOOLEAN\r |
| | 270 | EFIAPI\r |
| | 271 | PeiPcdGetBoolEx (\r |
| | 272 | IN CONST EFI_GUID *Guid,\r |
| | 273 | IN UINTN ExTokenNumber\r |
| | 274 | )\r |
| | 275 | {\r |
| | 276 | return *((BOOLEAN *) ExGetWorker (Guid, ExTokenNumber, sizeof (BOOLEAN)));\r |
| | 277 | }\r |
| | 278 | \r |
| | 279 | \r |
| | 280 | \r |
| | 281 | UINTN\r |
| | 282 | EFIAPI\r |
| | 283 | PeiPcdGetSizeEx (\r |
| | 284 | IN CONST EFI_GUID *Guid,\r |
| | 285 | IN UINTN ExTokenNumber\r |
| | 286 | )\r |
| | 287 | {\r |
| | 288 | if ((!FeaturePcdGet (PcdPeiPcdDatabaseGetSizeEnabled)) || !FeaturePcdGet (PcdPeiPcdDatabaseExEnabled)) {\r |
| | 289 | return EFI_UNSUPPORTED;\r |
| | 290 | }\r |
| | 291 | \r |
| | 292 | return PeiPcdGetSize (GetExPcdTokenNumber (Guid, ExTokenNumber));\r |
| | 293 | }\r |
| | 294 | \r |
| | 295 | \r |
| | 296 | \r |
| | 297 | EFI_STATUS\r |
| | 298 | EFIAPI\r |
| | 299 | PeiPcdSet8 (\r |
| | 300 | IN UINTN TokenNumber,\r |
| | 301 | IN UINT8 Value\r |
| | 302 | )\r |
| | 303 | {\r |
| | 304 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
| | 305 | }\r |
| | 306 | \r |
| | 307 | \r |
| | 308 | \r |
| | 309 | EFI_STATUS\r |
| | 310 | EFIAPI\r |
| | 311 | PeiPcdSet16 (\r |
| | 312 | IN UINTN TokenNumber,\r |
| | 313 | IN UINT16 Value\r |
| | 314 | )\r |
| | 315 | {\r |
| | 316 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
| | 317 | }\r |
| | 318 | \r |
| | 319 | \r |
| | 320 | \r |
| | 321 | EFI_STATUS\r |
| | 322 | EFIAPI\r |
| | 323 | PeiPcdSet32 (\r |
| | 324 | IN UINTN TokenNumber,\r |
| | 325 | IN UINT32 Value\r |
| | 326 | )\r |
| | 327 | {\r |
| | 328 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
| | 329 | }\r |
| | 330 | \r |
| | 331 | \r |
| | 332 | \r |
| | 333 | EFI_STATUS\r |
| | 334 | EFIAPI\r |
| | 335 | PeiPcdSet64 (\r |
| | 336 | IN UINTN TokenNumber,\r |
| | 337 | IN UINT64 Value\r |
| | 338 | )\r |
| | 339 | {\r |
| | 340 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
| | 341 | }\r |
| | 342 | \r |
| | 343 | \r |
| | 344 | EFI_STATUS\r |
| | 345 | EFIAPI\r |
| | 346 | PeiPcdSetPtr (\r |
| | 347 | IN UINTN TokenNumber,\r |
| | 348 | IN OUT UINTN *SizeOfBuffer,\r |
| | 349 | IN VOID *Buffer\r |
| | 350 | )\r |
| | 351 | {\r |
| | 352 | return SetWorker (TokenNumber, Buffer, SizeOfBuffer, TRUE);\r |
| | 353 | }\r |
| | 354 | \r |
| | 355 | \r |
| | 356 | \r |
| | 357 | EFI_STATUS\r |
| | 358 | EFIAPI\r |
| | 359 | PeiPcdSetBool (\r |
| | 360 | IN UINTN TokenNumber,\r |
| | 361 | IN BOOLEAN Value\r |
| | 362 | )\r |
| | 363 | {\r |
| | 364 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
| | 365 | }\r |
| | 366 | \r |
| | 367 | \r |
| | 368 | \r |
| | 369 | EFI_STATUS\r |
| | 370 | EFIAPI\r |
| | 371 | PeiPcdSet8Ex (\r |
| | 372 | IN CONST EFI_GUID *Guid,\r |
| | 373 | IN UINTN ExTokenNumber,\r |
| | 374 | IN UINT8 Value\r |
| | 375 | )\r |
| | 376 | {\r |
| | 377 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
| | 378 | }\r |
| | 379 | \r |
| | 380 | \r |
| | 381 | \r |
| | 382 | EFI_STATUS\r |
| | 383 | EFIAPI\r |
| | 384 | PeiPcdSet16Ex (\r |
| | 385 | IN CONST EFI_GUID *Guid,\r |
| | 386 | IN UINTN ExTokenNumber,\r |
| | 387 | IN UINT16 Value\r |
| | 388 | )\r |
| | 389 | {\r |
| | 390 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
| | 391 | }\r |
| | 392 | \r |
| | 393 | \r |
| | 394 | \r |
| | 395 | EFI_STATUS\r |
| | 396 | EFIAPI\r |
| | 397 | PeiPcdSet32Ex (\r |
| | 398 | IN CONST EFI_GUID *Guid,\r |
| | 399 | IN UINTN ExTokenNumber,\r |
| | 400 | IN UINT32 Value\r |
| | 401 | )\r |
| | 402 | {\r |
| | 403 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
| | 404 | }\r |
| | 405 | \r |
| | 406 | \r |
| | 407 | \r |
| | 408 | EFI_STATUS\r |
| | 409 | EFIAPI\r |
| | 410 | PeiPcdSet64Ex (\r |
| | 411 | IN CONST EFI_GUID *Guid,\r |
| | 412 | IN UINTN ExTokenNumber,\r |
| | 413 | IN UINT64 Value\r |
| | 414 | )\r |
| | 415 | {\r |
| | 416 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
| | 417 | }\r |
| | 418 | \r |
| | 419 | \r |
| | 420 | \r |
| | 421 | EFI_STATUS\r |
| | 422 | EFIAPI\r |
| | 423 | PeiPcdSetPtrEx (\r |
| | 424 | IN CONST EFI_GUID *Guid,\r |
| | 425 | IN UINTN ExTokenNumber,\r |
| | 426 | IN UINTN *SizeOfBuffer,\r |
| | 427 | IN VOID *Value\r |
| | 428 | )\r |
| | 429 | {\r |
| | 430 | return ExSetWorker (ExTokenNumber, Guid, Value, SizeOfBuffer, TRUE);\r |
| | 431 | }\r |
| | 432 | \r |
| | 433 | \r |
| | 434 | \r |
| | 435 | EFI_STATUS\r |
| | 436 | EFIAPI\r |
| | 437 | PeiPcdSetBoolEx (\r |
| | 438 | IN CONST EFI_GUID *Guid,\r |
| | 439 | IN UINTN ExTokenNumber,\r |
| | 440 | IN BOOLEAN Value\r |
| | 441 | )\r |
| | 442 | {\r |
| | 443 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
| | 444 | }\r |
| | 445 | \r |
| | 446 | \r |
| | 447 | \r |
| | 448 | \r |
| | 449 | EFI_STATUS\r |
| | 450 | EFIAPI\r |
| | 451 | PeiRegisterCallBackOnSet (\r |
| | 452 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
| | 453 | IN UINTN ExTokenNumber,\r |
| | 454 | IN PCD_PPI_CALLBACK CallBackFunction\r |
| | 455 | )\r |
| | 456 | {\r |
| | 457 | if (!FeaturePcdGet(PcdPeiPcdDatabaseCallbackOnSetEnabled)) {\r |
| | 458 | return EFI_UNSUPPORTED;\r |
| | 459 | }\r |
| | 460 | \r |
| | 461 | ASSERT (CallBackFunction != NULL);\r |
| | 462 | \r |
| | 463 | return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, TRUE);\r |
| | 464 | }\r |
| | 465 | \r |
| | 466 | \r |
| | 467 | \r |
| | 468 | EFI_STATUS\r |
| | 469 | EFIAPI\r |
| | 470 | PcdUnRegisterCallBackOnSet (\r |
| | 471 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
| | 472 | IN UINTN ExTokenNumber,\r |
| | 473 | IN PCD_PPI_CALLBACK CallBackFunction\r |
| | 474 | )\r |
| | 475 | {\r |
| | 476 | if (!FeaturePcdGet(PcdPeiPcdDatabaseCallbackOnSetEnabled)) {\r |
| | 477 | return EFI_UNSUPPORTED;\r |
| | 478 | }\r |
| | 479 | \r |
| | 480 | ASSERT (CallBackFunction != NULL);\r |
| | 481 | \r |
| | 482 | return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, FALSE);\r |
| | 483 | }\r |
| | 484 | \r |
| | 485 | \r |
| | 486 | \r |
| | 487 | EFI_STATUS\r |
| | 488 | EFIAPI\r |
| | 489 | PeiPcdGetNextToken (\r |
| | 490 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
| | 491 | IN OUT UINTN *TokenNumber\r |
| | 492 | )\r |
| | 493 | {\r |
| | 494 | UINTN GuidTableIdx;\r |
| | 495 | PEI_PCD_DATABASE *PeiPcdDb;\r |
| | 496 | EFI_GUID *MatchGuid;\r |
| | 497 | DYNAMICEX_MAPPING *ExMapTable;\r |
| | 498 | UINTN i;\r |
| | 499 | BOOLEAN Found;\r |
| | 500 | \r |
| | 501 | if (!FeaturePcdGet (PcdPeiPcdDatabaseTraverseEnabled)) {\r |
| | 502 | return EFI_UNSUPPORTED;\r |
| | 503 | }\r |
| | 504 | \r |
| | 505 | if (Guid == NULL) {\r |
| | 506 | if (*TokenNumber > PEI_NEX_TOKEN_NUMBER) {\r |
| | 507 | return EFI_NOT_FOUND;\r |
| | 508 | }\r |
| | 509 | (*TokenNumber)++;\r |
| | 510 | if (*TokenNumber > PEI_NEX_TOKEN_NUMBER) {\r |
| | 511 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
| | 512 | }\r |
| | 513 | return EFI_SUCCESS;\r |
| | 514 | } else {\r |
| | 515 | if (PEI_EXMAP_TABLE_EMPTY) {\r |
| | 516 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
| | 517 | return EFI_SUCCESS;\r |
| | 518 | }\r |
| | 519 | \r |
| | 520 | //\r |
| | 521 | // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order\r |
| | 522 | // 1) ExGuid\r |
| | 523 | // 2) ExTokenNumber\r |
| | 524 | //\r |
| | 525 | PeiPcdDb = GetPcdDatabase ();\r |
| | 526 | \r |
| | 527 | MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), Guid);\r |
| | 528 | \r |
| | 529 | if (MatchGuid == NULL) {\r |
| | 530 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
| | 531 | return EFI_NOT_FOUND;\r |
| | 532 | }\r |
| | 533 | \r |
| | 534 | GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;\r |
| | 535 | \r |
| | 536 | ExMapTable = PeiPcdDb->Init.ExMapTable;\r |
| | 537 | \r |
| | 538 | Found = FALSE;\r |
| | 539 | //\r |
| | 540 | // Locate the GUID in ExMapTable first.\r |
| | 541 | //\r |
| | 542 | for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
| | 543 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
| | 544 | Found = TRUE;\r |
| | 545 | break;\r |
| | 546 | }\r |
| | 547 | }\r |
| | 548 | \r |
| | 549 | if (Found) {\r |
| | 550 | if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
| | 551 | *TokenNumber = ExMapTable[i].ExTokenNumber;\r |
| | 552 | return EFI_SUCCESS;\r |
| | 553 | }\r |
| | 554 | \r |
| | 555 | for ( ; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
| | 556 | if (ExMapTable[i].ExTokenNumber == *TokenNumber) {\r |
| | 557 | i++;\r |
| | 558 | if (i == PEI_EXMAPPING_TABLE_SIZE) {\r |
| | 559 | //\r |
| | 560 | // Exceed the length of ExMap Table\r |
| | 561 | //\r |
| | 562 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
| | 563 | return EFI_SUCCESS;\r |
| | 564 | }\r |
| | 565 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
| | 566 | *TokenNumber = ExMapTable[i].ExTokenNumber;\r |
| | 567 | return EFI_SUCCESS;\r |
| | 568 | } else {\r |
| | 569 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
| | 570 | return EFI_SUCCESS;\r |
| | 571 | }\r |
| | 572 | }\r |
| | 573 | }\r |
| | 574 | return EFI_NOT_FOUND;\r |
| | 575 | }\r |
| | 576 | }\r |
| | 577 | \r |
| | 578 | return EFI_NOT_FOUND;\r |
| | 579 | }\r |
| | 580 | \r |
| | 581 | \r |
| | 582 | \r |
| | 583 | EFI_STATUS\r |
| | 584 | EFIAPI\r |
| | 585 | PeiPcdGetNextTokenSpace (\r |
| | 586 | IN OUT CONST EFI_GUID **Guid\r |
| | 587 | )\r |
| | 588 | {\r |
| | 589 | UINTN GuidTableIdx;\r |
| | 590 | EFI_GUID *MatchGuid;\r |
| | 591 | PEI_PCD_DATABASE *PeiPcdDb;\r |
| | 592 | DYNAMICEX_MAPPING *ExMapTable;\r |
| | 593 | UINTN i;\r |
| | 594 | BOOLEAN Found;\r |
| | 595 | \r |
| | 596 | if (!FeaturePcdGet (PcdPeiPcdDatabaseTraverseEnabled)) {\r |
| | 597 | return EFI_UNSUPPORTED;\r |
| | 598 | }\r |
| | 599 | \r |
| | 600 | ASSERT (Guid != NULL);\r |
| | 601 | \r |
| | 602 | if (PEI_EXMAP_TABLE_EMPTY) {\r |
| | 603 | if (*Guid != NULL) {\r |
| | 604 | return EFI_NOT_FOUND;\r |
| | 605 | } else {\r |
| | 606 | return EFI_SUCCESS;\r |
| | 607 | }\r |
| | 608 | }\r |
| | 609 | \r |
| | 610 | //\r |
| | 611 | // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order\r |
| | 612 | // 1) ExGuid\r |
| | 613 | // 2) ExTokenNumber\r |
| | 614 | //\r |
| | 615 | PeiPcdDb = GetPcdDatabase ();\r |
| | 616 | \r |
| | 617 | ExMapTable = PeiPcdDb->Init.ExMapTable;\r |
| | 618 | \r |
| | 619 | if (*Guid == NULL) {\r |
| | 620 | //\r |
| | 621 | // return the first Token Space Guid.\r |
| | 622 | //\r |
| | 623 | *Guid = &PeiPcdDb->Init.GuidTable[ExMapTable[0].ExGuidIndex];\r |
| | 624 | return EFI_SUCCESS;\r |
| | 625 | }\r |
| | 626 | \r |
| | 627 | MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), *Guid);\r |
| | 628 | \r |
| | 629 | if (MatchGuid == NULL) {\r |
| | 630 | return EFI_NOT_FOUND;\r |
| | 631 | }\r |
| | 632 | \r |
| | 633 | GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;\r |
| | 634 | \r |
| | 635 | Found = FALSE;\r |
| | 636 | for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
| | 637 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
| | 638 | Found = TRUE;\r |
| | 639 | break;\r |
| | 640 | }\r |
| | 641 | }\r |
| | 642 | \r |
| | 643 | if (Found) {\r |
| | 644 | i++;\r |
| | 645 | for ( ; i < PEI_EXMAPPING_TABLE_SIZE; i++ ) {\r |
| | 646 | if (ExMapTable[i].ExGuidIndex != GuidTableIdx ) {\r |
| | 647 | *Guid = &PeiPcdDb->Init.GuidTable[ExMapTable[i].ExGuidIndex];\r |
| | 648 | return EFI_SUCCESS;\r |
| | 649 | }\r |
| | 650 | }\r |
| | 651 | *Guid = NULL;\r |
| | 652 | return EFI_SUCCESS;\r |
| | 653 | }\r |
| | 654 | \r |
| | 655 | return EFI_NOT_FOUND;\r |
| | 656 | \r |
| | 657 | }\r |
| | 658 | \r |
projects / mirror_edk2.git / blame_incremental