| | 1 | /** @file\r |
| | 2 | Implementation of PcdLib class library for DXE phase.\r |
| | 3 | \r |
| | 4 | Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r |
| | 5 | 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 | \r |
| | 14 | **/\r |
| | 15 | \r |
| | 16 | \r |
| | 17 | #include <PiDxe.h>\r |
| | 18 | \r |
| | 19 | #include <Protocol/Pcd.h>\r |
| | 20 | #include <Protocol/PiPcd.h>\r |
| | 21 | \r |
| | 22 | #include <Library/PcdLib.h>\r |
| | 23 | #include <Library/DebugLib.h>\r |
| | 24 | #include <Library/UefiBootServicesTableLib.h>\r |
| | 25 | #include <Library/BaseMemoryLib.h>\r |
| | 26 | \r |
| | 27 | PCD_PROTOCOL *mPcd = NULL;\r |
| | 28 | EFI_PCD_PROTOCOL *mPiPcd = NULL;\r |
| | 29 | \r |
| | 30 | /**\r |
| | 31 | Retrieves the PI PCD protocol from the handle database.\r |
| | 32 | **/\r |
| | 33 | EFI_PCD_PROTOCOL *\r |
| | 34 | EFIAPI\r |
| | 35 | GetPiPcdProtocol (\r |
| | 36 | VOID\r |
| | 37 | )\r |
| | 38 | {\r |
| | 39 | EFI_STATUS Status;\r |
| | 40 | \r |
| | 41 | if (mPiPcd == NULL) {\r |
| | 42 | //\r |
| | 43 | // PI Pcd protocol defined in PI 1.2 vol3 should be installed before the module \r |
| | 44 | // access DynamicEx type PCD.\r |
| | 45 | //\r |
| | 46 | Status = gBS->LocateProtocol (&gEfiPcdProtocolGuid, NULL, (VOID **) &mPiPcd);\r |
| | 47 | ASSERT_EFI_ERROR (Status);\r |
| | 48 | ASSERT (mPiPcd != NULL);\r |
| | 49 | }\r |
| | 50 | return mPiPcd;\r |
| | 51 | }\r |
| | 52 | \r |
| | 53 | /**\r |
| | 54 | Retrieves the PCD protocol from the handle database.\r |
| | 55 | **/\r |
| | 56 | PCD_PROTOCOL *\r |
| | 57 | EFIAPI\r |
| | 58 | GetPcdProtocol (\r |
| | 59 | VOID\r |
| | 60 | )\r |
| | 61 | {\r |
| | 62 | EFI_STATUS Status;\r |
| | 63 | \r |
| | 64 | if (mPcd == NULL) {\r |
| | 65 | //\r |
| | 66 | // PCD protocol need to be installed before the module access Dynamic type PCD.\r |
| | 67 | // But dynamic type PCD is not required in PI 1.2 specification.\r |
| | 68 | // \r |
| | 69 | Status = gBS->LocateProtocol (&gPcdProtocolGuid, NULL, (VOID **)&mPcd);\r |
| | 70 | ASSERT_EFI_ERROR (Status);\r |
| | 71 | ASSERT (mPcd != NULL);\r |
| | 72 | }\r |
| | 73 | return mPcd;\r |
| | 74 | }\r |
| | 75 | \r |
| | 76 | \r |
| | 77 | /**\r |
| | 78 | This function provides a means by which SKU support can be established in the PCD infrastructure.\r |
| | 79 | \r |
| | 80 | Sets the current SKU in the PCD database to the value specified by SkuId. SkuId is returned.\r |
| | 81 | If SkuId >= PCD_MAX_SKU_ID, then ASSERT(). \r |
| | 82 | \r |
| | 83 | @param SkuId The SKU value that will be used when the PCD service retrieves and sets values\r |
| | 84 | associated with a PCD token.\r |
| | 85 | \r |
| | 86 | @return Return the SKU ID that just be set.\r |
| | 87 | \r |
| | 88 | **/\r |
| | 89 | UINTN\r |
| | 90 | EFIAPI\r |
| | 91 | LibPcdSetSku (\r |
| | 92 | IN UINTN SkuId\r |
| | 93 | )\r |
| | 94 | {\r |
| | 95 | ASSERT (SkuId < PCD_MAX_SKU_ID);\r |
| | 96 | \r |
| | 97 | GetPcdProtocol()->SetSku (SkuId);\r |
| | 98 | \r |
| | 99 | return SkuId;\r |
| | 100 | }\r |
| | 101 | \r |
| | 102 | \r |
| | 103 | \r |
| | 104 | /**\r |
| | 105 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 106 | \r |
| | 107 | Returns the 8-bit value for the token specified by TokenNumber. \r |
| | 108 | \r |
| | 109 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 110 | \r |
| | 111 | @return Returns the 8-bit value for the token specified by TokenNumber. \r |
| | 112 | \r |
| | 113 | **/\r |
| | 114 | UINT8\r |
| | 115 | EFIAPI\r |
| | 116 | LibPcdGet8 (\r |
| | 117 | IN UINTN TokenNumber\r |
| | 118 | )\r |
| | 119 | {\r |
| | 120 | return GetPcdProtocol()->Get8 (TokenNumber);\r |
| | 121 | }\r |
| | 122 | \r |
| | 123 | \r |
| | 124 | \r |
| | 125 | /**\r |
| | 126 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 127 | \r |
| | 128 | Returns the 16-bit value for the token specified by TokenNumber. \r |
| | 129 | \r |
| | 130 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 131 | \r |
| | 132 | @return Returns the 16-bit value for the token specified by TokenNumber. \r |
| | 133 | \r |
| | 134 | **/\r |
| | 135 | UINT16\r |
| | 136 | EFIAPI\r |
| | 137 | LibPcdGet16 (\r |
| | 138 | IN UINTN TokenNumber\r |
| | 139 | )\r |
| | 140 | {\r |
| | 141 | return GetPcdProtocol()->Get16 (TokenNumber);\r |
| | 142 | }\r |
| | 143 | \r |
| | 144 | \r |
| | 145 | \r |
| | 146 | /**\r |
| | 147 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 148 | \r |
| | 149 | Returns the 32-bit value for the token specified by TokenNumber. \r |
| | 150 | \r |
| | 151 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 152 | \r |
| | 153 | @return Returns the 32-bit value for the token specified by TokenNumber.\r |
| | 154 | \r |
| | 155 | **/\r |
| | 156 | UINT32\r |
| | 157 | EFIAPI\r |
| | 158 | LibPcdGet32 (\r |
| | 159 | IN UINTN TokenNumber\r |
| | 160 | )\r |
| | 161 | {\r |
| | 162 | return GetPcdProtocol()->Get32 (TokenNumber);\r |
| | 163 | }\r |
| | 164 | \r |
| | 165 | \r |
| | 166 | \r |
| | 167 | /**\r |
| | 168 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 169 | \r |
| | 170 | Returns the 64-bit value for the token specified by TokenNumber.\r |
| | 171 | \r |
| | 172 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 173 | \r |
| | 174 | @return Returns the 64-bit value for the token specified by TokenNumber.\r |
| | 175 | \r |
| | 176 | **/\r |
| | 177 | UINT64\r |
| | 178 | EFIAPI\r |
| | 179 | LibPcdGet64 (\r |
| | 180 | IN UINTN TokenNumber\r |
| | 181 | )\r |
| | 182 | {\r |
| | 183 | return GetPcdProtocol()->Get64 (TokenNumber);\r |
| | 184 | }\r |
| | 185 | \r |
| | 186 | \r |
| | 187 | \r |
| | 188 | /**\r |
| | 189 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 190 | \r |
| | 191 | Returns the pointer to the buffer of the token specified by TokenNumber.\r |
| | 192 | \r |
| | 193 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 194 | \r |
| | 195 | @return Returns the pointer to the token specified by TokenNumber.\r |
| | 196 | \r |
| | 197 | **/\r |
| | 198 | VOID *\r |
| | 199 | EFIAPI\r |
| | 200 | LibPcdGetPtr (\r |
| | 201 | IN UINTN TokenNumber\r |
| | 202 | )\r |
| | 203 | {\r |
| | 204 | return GetPcdProtocol()->GetPtr (TokenNumber);\r |
| | 205 | }\r |
| | 206 | \r |
| | 207 | \r |
| | 208 | \r |
| | 209 | /**\r |
| | 210 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 211 | \r |
| | 212 | Returns the Boolean value of the token specified by TokenNumber. \r |
| | 213 | \r |
| | 214 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 215 | \r |
| | 216 | @return Returns the Boolean value of the token specified by TokenNumber. \r |
| | 217 | \r |
| | 218 | **/\r |
| | 219 | BOOLEAN \r |
| | 220 | EFIAPI\r |
| | 221 | LibPcdGetBool (\r |
| | 222 | IN UINTN TokenNumber\r |
| | 223 | )\r |
| | 224 | {\r |
| | 225 | return GetPcdProtocol()->GetBool (TokenNumber);\r |
| | 226 | }\r |
| | 227 | \r |
| | 228 | \r |
| | 229 | \r |
| | 230 | /**\r |
| | 231 | This function provides a means by which to retrieve the size of a given PCD token.\r |
| | 232 | \r |
| | 233 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 234 | \r |
| | 235 | @return Returns the size of the token specified by TokenNumber. \r |
| | 236 | \r |
| | 237 | **/\r |
| | 238 | UINTN\r |
| | 239 | EFIAPI\r |
| | 240 | LibPcdGetSize (\r |
| | 241 | IN UINTN TokenNumber\r |
| | 242 | )\r |
| | 243 | {\r |
| | 244 | return GetPcdProtocol()->GetSize (TokenNumber);\r |
| | 245 | }\r |
| | 246 | \r |
| | 247 | \r |
| | 248 | \r |
| | 249 | /**\r |
| | 250 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 251 | \r |
| | 252 | Returns the 8-bit value for the token specified by TokenNumber and Guid.\r |
| | 253 | \r |
| | 254 | If Guid is NULL, then ASSERT(). \r |
| | 255 | \r |
| | 256 | @param[in] Guid The pointer to a 128-bit unique value that designates \r |
| | 257 | which namespace to retrieve a value from.\r |
| | 258 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 259 | \r |
| | 260 | @return Return the UINT8.\r |
| | 261 | \r |
| | 262 | **/\r |
| | 263 | UINT8\r |
| | 264 | EFIAPI\r |
| | 265 | LibPcdGetEx8 (\r |
| | 266 | IN CONST GUID *Guid,\r |
| | 267 | IN UINTN TokenNumber\r |
| | 268 | )\r |
| | 269 | {\r |
| | 270 | ASSERT (Guid != NULL);\r |
| | 271 | \r |
| | 272 | return GetPiPcdProtocol()->Get8 (Guid, TokenNumber);\r |
| | 273 | }\r |
| | 274 | \r |
| | 275 | \r |
| | 276 | /**\r |
| | 277 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 278 | \r |
| | 279 | Returns the 16-bit value for the token specified by TokenNumber and Guid.\r |
| | 280 | \r |
| | 281 | If Guid is NULL, then ASSERT(). \r |
| | 282 | \r |
| | 283 | @param[in] Guid The pointer to a 128-bit unique value that designates \r |
| | 284 | which namespace to retrieve a value from.\r |
| | 285 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 286 | \r |
| | 287 | @return Return the UINT16.\r |
| | 288 | \r |
| | 289 | **/\r |
| | 290 | UINT16\r |
| | 291 | EFIAPI\r |
| | 292 | LibPcdGetEx16 (\r |
| | 293 | IN CONST GUID *Guid,\r |
| | 294 | IN UINTN TokenNumber\r |
| | 295 | )\r |
| | 296 | {\r |
| | 297 | ASSERT (Guid != NULL);\r |
| | 298 | \r |
| | 299 | return GetPiPcdProtocol()->Get16 (Guid, TokenNumber);\r |
| | 300 | }\r |
| | 301 | \r |
| | 302 | \r |
| | 303 | /**\r |
| | 304 | Returns the 32-bit value for the token specified by TokenNumber and Guid.\r |
| | 305 | If Guid is NULL, then ASSERT(). \r |
| | 306 | \r |
| | 307 | @param[in] Guid The pointer to a 128-bit unique value that designates \r |
| | 308 | which namespace to retrieve a value from.\r |
| | 309 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 310 | \r |
| | 311 | @return Return the UINT32.\r |
| | 312 | \r |
| | 313 | **/\r |
| | 314 | UINT32\r |
| | 315 | EFIAPI\r |
| | 316 | LibPcdGetEx32 (\r |
| | 317 | IN CONST GUID *Guid,\r |
| | 318 | IN UINTN TokenNumber\r |
| | 319 | )\r |
| | 320 | {\r |
| | 321 | ASSERT (Guid != NULL);\r |
| | 322 | \r |
| | 323 | return GetPiPcdProtocol()->Get32 (Guid, TokenNumber);\r |
| | 324 | }\r |
| | 325 | \r |
| | 326 | \r |
| | 327 | \r |
| | 328 | /**\r |
| | 329 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 330 | \r |
| | 331 | Returns the 64-bit value for the token specified by TokenNumber and Guid.\r |
| | 332 | \r |
| | 333 | If Guid is NULL, then ASSERT(). \r |
| | 334 | \r |
| | 335 | @param[in] Guid The pointer to a 128-bit unique value that designates \r |
| | 336 | which namespace to retrieve a value from.\r |
| | 337 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 338 | \r |
| | 339 | @return Return the UINT64.\r |
| | 340 | \r |
| | 341 | **/\r |
| | 342 | UINT64\r |
| | 343 | EFIAPI\r |
| | 344 | LibPcdGetEx64 (\r |
| | 345 | IN CONST GUID *Guid,\r |
| | 346 | IN UINTN TokenNumber\r |
| | 347 | )\r |
| | 348 | {\r |
| | 349 | ASSERT (Guid != NULL);\r |
| | 350 | \r |
| | 351 | return GetPiPcdProtocol()->Get64 (Guid, TokenNumber);\r |
| | 352 | }\r |
| | 353 | \r |
| | 354 | \r |
| | 355 | \r |
| | 356 | /**\r |
| | 357 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 358 | \r |
| | 359 | Returns the pointer to the buffer of token specified by TokenNumber and Guid.\r |
| | 360 | \r |
| | 361 | If Guid is NULL, then ASSERT(). \r |
| | 362 | \r |
| | 363 | @param[in] Guid The pointer to a 128-bit unique value that designates \r |
| | 364 | which namespace to retrieve a value from.\r |
| | 365 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 366 | \r |
| | 367 | @return Return the VOID* pointer.\r |
| | 368 | \r |
| | 369 | **/\r |
| | 370 | VOID *\r |
| | 371 | EFIAPI\r |
| | 372 | LibPcdGetExPtr (\r |
| | 373 | IN CONST GUID *Guid,\r |
| | 374 | IN UINTN TokenNumber\r |
| | 375 | )\r |
| | 376 | {\r |
| | 377 | ASSERT (Guid != NULL);\r |
| | 378 | \r |
| | 379 | return GetPiPcdProtocol()->GetPtr (Guid, TokenNumber);\r |
| | 380 | }\r |
| | 381 | \r |
| | 382 | \r |
| | 383 | \r |
| | 384 | /**\r |
| | 385 | This function provides a means by which to retrieve a value for a given PCD token.\r |
| | 386 | \r |
| | 387 | Returns the Boolean value of the token specified by TokenNumber and Guid. \r |
| | 388 | \r |
| | 389 | If Guid is NULL, then ASSERT(). \r |
| | 390 | \r |
| | 391 | @param[in] Guid The pointer to a 128-bit unique value that designates \r |
| | 392 | which namespace to retrieve a value from.\r |
| | 393 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 394 | \r |
| | 395 | @return Return the BOOLEAN.\r |
| | 396 | \r |
| | 397 | **/\r |
| | 398 | BOOLEAN\r |
| | 399 | EFIAPI\r |
| | 400 | LibPcdGetExBool (\r |
| | 401 | IN CONST GUID *Guid,\r |
| | 402 | IN UINTN TokenNumber\r |
| | 403 | )\r |
| | 404 | {\r |
| | 405 | ASSERT (Guid != NULL);\r |
| | 406 | \r |
| | 407 | return GetPiPcdProtocol()->GetBool (Guid, TokenNumber);\r |
| | 408 | }\r |
| | 409 | \r |
| | 410 | \r |
| | 411 | \r |
| | 412 | /**\r |
| | 413 | This function provides a means by which to retrieve the size of a given PCD token.\r |
| | 414 | \r |
| | 415 | Returns the size of the token specified by TokenNumber and Guid. \r |
| | 416 | \r |
| | 417 | If Guid is NULL, then ASSERT(). \r |
| | 418 | \r |
| | 419 | @param[in] Guid The pointer to a 128-bit unique value that designates \r |
| | 420 | which namespace to retrieve a value from.\r |
| | 421 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r |
| | 422 | \r |
| | 423 | @return Return the size.\r |
| | 424 | \r |
| | 425 | **/\r |
| | 426 | UINTN\r |
| | 427 | EFIAPI\r |
| | 428 | LibPcdGetExSize (\r |
| | 429 | IN CONST GUID *Guid,\r |
| | 430 | IN UINTN TokenNumber\r |
| | 431 | )\r |
| | 432 | {\r |
| | 433 | ASSERT (Guid != NULL);\r |
| | 434 | \r |
| | 435 | return GetPiPcdProtocol()->GetSize (Guid, TokenNumber);\r |
| | 436 | }\r |
| | 437 | \r |
| | 438 | \r |
| | 439 | \r |
| | 440 | /**\r |
| | 441 | This function provides a means by which to set a value for a given PCD token.\r |
| | 442 | \r |
| | 443 | Sets the 8-bit value for the token specified by TokenNumber \r |
| | 444 | to the value specified by Value. Value is returned.\r |
| | 445 | \r |
| | 446 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 447 | @param[in] Value The 8-bit value to set.\r |
| | 448 | \r |
| | 449 | @return Return the value that was set.\r |
| | 450 | \r |
| | 451 | **/\r |
| | 452 | UINT8\r |
| | 453 | EFIAPI\r |
| | 454 | LibPcdSet8 (\r |
| | 455 | IN UINTN TokenNumber,\r |
| | 456 | IN UINT8 Value\r |
| | 457 | )\r |
| | 458 | {\r |
| | 459 | EFI_STATUS Status;\r |
| | 460 | \r |
| | 461 | Status = GetPcdProtocol()->Set8 (TokenNumber, Value);\r |
| | 462 | ASSERT_EFI_ERROR (Status);\r |
| | 463 | \r |
| | 464 | return Value;\r |
| | 465 | }\r |
| | 466 | \r |
| | 467 | \r |
| | 468 | \r |
| | 469 | /**\r |
| | 470 | This function provides a means by which to set a value for a given PCD token.\r |
| | 471 | \r |
| | 472 | Sets the 16-bit value for the token specified by TokenNumber \r |
| | 473 | to the value specified by Value. Value is returned.\r |
| | 474 | \r |
| | 475 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 476 | @param[in] Value The 16-bit value to set.\r |
| | 477 | \r |
| | 478 | @return Return the value that was set.\r |
| | 479 | \r |
| | 480 | **/\r |
| | 481 | UINT16\r |
| | 482 | EFIAPI\r |
| | 483 | LibPcdSet16 (\r |
| | 484 | IN UINTN TokenNumber,\r |
| | 485 | IN UINT16 Value\r |
| | 486 | )\r |
| | 487 | {\r |
| | 488 | EFI_STATUS Status;\r |
| | 489 | \r |
| | 490 | Status = GetPcdProtocol()->Set16 (TokenNumber, Value);\r |
| | 491 | ASSERT_EFI_ERROR (Status);\r |
| | 492 | \r |
| | 493 | return Value;\r |
| | 494 | }\r |
| | 495 | \r |
| | 496 | \r |
| | 497 | \r |
| | 498 | /**\r |
| | 499 | This function provides a means by which to set a value for a given PCD token.\r |
| | 500 | \r |
| | 501 | Sets the 32-bit value for the token specified by TokenNumber \r |
| | 502 | to the value specified by Value. Value is returned.\r |
| | 503 | \r |
| | 504 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 505 | @param[in] Value The 32-bit value to set.\r |
| | 506 | \r |
| | 507 | @return Return the value that was set.\r |
| | 508 | \r |
| | 509 | **/\r |
| | 510 | UINT32\r |
| | 511 | EFIAPI\r |
| | 512 | LibPcdSet32 (\r |
| | 513 | IN UINTN TokenNumber,\r |
| | 514 | IN UINT32 Value\r |
| | 515 | )\r |
| | 516 | {\r |
| | 517 | EFI_STATUS Status;\r |
| | 518 | \r |
| | 519 | Status = GetPcdProtocol()->Set32 (TokenNumber, Value);\r |
| | 520 | ASSERT_EFI_ERROR (Status);\r |
| | 521 | \r |
| | 522 | return Value;\r |
| | 523 | }\r |
| | 524 | \r |
| | 525 | \r |
| | 526 | \r |
| | 527 | /**\r |
| | 528 | This function provides a means by which to set a value for a given PCD token.\r |
| | 529 | \r |
| | 530 | Sets the 64-bit value for the token specified by TokenNumber \r |
| | 531 | to the value specified by Value. Value is returned.\r |
| | 532 | \r |
| | 533 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 534 | @param[in] Value The 64-bit value to set.\r |
| | 535 | \r |
| | 536 | @return Return the value that was set.\r |
| | 537 | \r |
| | 538 | **/\r |
| | 539 | UINT64\r |
| | 540 | EFIAPI\r |
| | 541 | LibPcdSet64 (\r |
| | 542 | IN UINTN TokenNumber,\r |
| | 543 | IN UINT64 Value\r |
| | 544 | )\r |
| | 545 | {\r |
| | 546 | EFI_STATUS Status;\r |
| | 547 | \r |
| | 548 | Status = GetPcdProtocol()->Set64 (TokenNumber, Value);\r |
| | 549 | ASSERT_EFI_ERROR (Status);\r |
| | 550 | \r |
| | 551 | return Value;\r |
| | 552 | }\r |
| | 553 | \r |
| | 554 | \r |
| | 555 | \r |
| | 556 | /**\r |
| | 557 | This function provides a means by which to set a value for a given PCD token.\r |
| | 558 | \r |
| | 559 | Sets a buffer for the token specified by TokenNumber to the value \r |
| | 560 | specified by Buffer and SizeOfBuffer. Buffer is returned. \r |
| | 561 | If SizeOfBuffer is greater than the maximum size support by TokenNumber, \r |
| | 562 | then set SizeOfBuffer to the maximum size supported by TokenNumber and \r |
| | 563 | return NULL to indicate that the set operation was not actually performed. \r |
| | 564 | \r |
| | 565 | If SizeOfBuffer is set to MAX_ADDRESS, then SizeOfBuffer must be set to the \r |
| | 566 | maximum size supported by TokenName and NULL must be returned.\r |
| | 567 | \r |
| | 568 | If SizeOfBuffer is NULL, then ASSERT().\r |
| | 569 | If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r |
| | 570 | \r |
| | 571 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 572 | @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r |
| | 573 | @param[in] Buffer A pointer to the buffer to set.\r |
| | 574 | \r |
| | 575 | @return Return the pointer for the buffer been set.\r |
| | 576 | \r |
| | 577 | **/\r |
| | 578 | VOID *\r |
| | 579 | EFIAPI\r |
| | 580 | LibPcdSetPtr (\r |
| | 581 | IN UINTN TokenNumber,\r |
| | 582 | IN OUT UINTN *SizeOfBuffer,\r |
| | 583 | IN CONST VOID *Buffer\r |
| | 584 | )\r |
| | 585 | {\r |
| | 586 | EFI_STATUS Status;\r |
| | 587 | \r |
| | 588 | ASSERT (SizeOfBuffer != NULL);\r |
| | 589 | \r |
| | 590 | if (*SizeOfBuffer > 0) {\r |
| | 591 | ASSERT (Buffer != NULL);\r |
| | 592 | }\r |
| | 593 | \r |
| | 594 | Status = GetPcdProtocol()->SetPtr (TokenNumber, SizeOfBuffer, (VOID *) Buffer);\r |
| | 595 | if (EFI_ERROR (Status)) {\r |
| | 596 | return NULL;\r |
| | 597 | }\r |
| | 598 | \r |
| | 599 | return (VOID *)Buffer;\r |
| | 600 | }\r |
| | 601 | \r |
| | 602 | \r |
| | 603 | \r |
| | 604 | /**\r |
| | 605 | This function provides a means by which to set a value for a given PCD token.\r |
| | 606 | \r |
| | 607 | Sets the Boolean value for the token specified by TokenNumber \r |
| | 608 | to the value specified by Value. Value is returned.\r |
| | 609 | \r |
| | 610 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 611 | @param[in] Value The boolean value to set.\r |
| | 612 | \r |
| | 613 | @return Return the value that was set.\r |
| | 614 | \r |
| | 615 | **/\r |
| | 616 | BOOLEAN\r |
| | 617 | EFIAPI\r |
| | 618 | LibPcdSetBool (\r |
| | 619 | IN UINTN TokenNumber,\r |
| | 620 | IN BOOLEAN Value\r |
| | 621 | )\r |
| | 622 | {\r |
| | 623 | EFI_STATUS Status;\r |
| | 624 | \r |
| | 625 | Status = GetPcdProtocol()->SetBool (TokenNumber, Value);\r |
| | 626 | ASSERT_EFI_ERROR (Status);\r |
| | 627 | \r |
| | 628 | return Value;\r |
| | 629 | }\r |
| | 630 | \r |
| | 631 | \r |
| | 632 | \r |
| | 633 | /**\r |
| | 634 | This function provides a means by which to set a value for a given PCD token.\r |
| | 635 | \r |
| | 636 | Sets the 8-bit value for the token specified by TokenNumber and \r |
| | 637 | Guid to the value specified by Value. Value is returned.\r |
| | 638 | \r |
| | 639 | If Guid is NULL, then ASSERT().\r |
| | 640 | \r |
| | 641 | @param[in] Guid The pointer to a 128-bit unique value that \r |
| | 642 | designates which namespace to set a value from.\r |
| | 643 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 644 | @param[in] Value The 8-bit value to set.\r |
| | 645 | \r |
| | 646 | @return Return the value that was set.\r |
| | 647 | \r |
| | 648 | **/\r |
| | 649 | UINT8\r |
| | 650 | EFIAPI\r |
| | 651 | LibPcdSetEx8 (\r |
| | 652 | IN CONST GUID *Guid,\r |
| | 653 | IN UINTN TokenNumber,\r |
| | 654 | IN UINT8 Value\r |
| | 655 | )\r |
| | 656 | {\r |
| | 657 | EFI_STATUS Status;\r |
| | 658 | \r |
| | 659 | ASSERT (Guid != NULL);\r |
| | 660 | \r |
| | 661 | Status = GetPiPcdProtocol()->Set8 (Guid, TokenNumber, Value);\r |
| | 662 | ASSERT_EFI_ERROR (Status);\r |
| | 663 | \r |
| | 664 | return Value;\r |
| | 665 | }\r |
| | 666 | \r |
| | 667 | \r |
| | 668 | \r |
| | 669 | /**\r |
| | 670 | This function provides a means by which to set a value for a given PCD token.\r |
| | 671 | \r |
| | 672 | Sets the 16-bit value for the token specified by TokenNumber and \r |
| | 673 | Guid to the value specified by Value. Value is returned.\r |
| | 674 | \r |
| | 675 | If Guid is NULL, then ASSERT().\r |
| | 676 | \r |
| | 677 | @param[in] Guid The pointer to a 128-bit unique value that \r |
| | 678 | designates which namespace to set a value from.\r |
| | 679 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 680 | @param[in] Value The 16-bit value to set.\r |
| | 681 | \r |
| | 682 | @return Return the value that was set.\r |
| | 683 | \r |
| | 684 | **/\r |
| | 685 | UINT16\r |
| | 686 | EFIAPI\r |
| | 687 | LibPcdSetEx16 (\r |
| | 688 | IN CONST GUID *Guid,\r |
| | 689 | IN UINTN TokenNumber,\r |
| | 690 | IN UINT16 Value\r |
| | 691 | )\r |
| | 692 | {\r |
| | 693 | EFI_STATUS Status;\r |
| | 694 | \r |
| | 695 | ASSERT (Guid != NULL);\r |
| | 696 | \r |
| | 697 | Status = GetPiPcdProtocol()->Set16 (Guid, TokenNumber, Value);\r |
| | 698 | ASSERT_EFI_ERROR (Status);\r |
| | 699 | \r |
| | 700 | return Value;\r |
| | 701 | }\r |
| | 702 | \r |
| | 703 | \r |
| | 704 | \r |
| | 705 | /**\r |
| | 706 | This function provides a means by which to set a value for a given PCD token.\r |
| | 707 | \r |
| | 708 | Sets the 32-bit value for the token specified by TokenNumber and \r |
| | 709 | Guid to the value specified by Value. Value is returned.\r |
| | 710 | \r |
| | 711 | If Guid is NULL, then ASSERT().\r |
| | 712 | \r |
| | 713 | @param[in] Guid The pointer to a 128-bit unique value that \r |
| | 714 | designates which namespace to set a value from.\r |
| | 715 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 716 | @param[in] Value The 32-bit value to set.\r |
| | 717 | \r |
| | 718 | @return Return the value that was set.\r |
| | 719 | \r |
| | 720 | **/\r |
| | 721 | UINT32\r |
| | 722 | EFIAPI\r |
| | 723 | LibPcdSetEx32 (\r |
| | 724 | IN CONST GUID *Guid,\r |
| | 725 | IN UINTN TokenNumber,\r |
| | 726 | IN UINT32 Value\r |
| | 727 | )\r |
| | 728 | {\r |
| | 729 | EFI_STATUS Status;\r |
| | 730 | \r |
| | 731 | ASSERT (Guid != NULL);\r |
| | 732 | \r |
| | 733 | Status = GetPiPcdProtocol()->Set32 (Guid, TokenNumber, Value);\r |
| | 734 | ASSERT_EFI_ERROR (Status);\r |
| | 735 | \r |
| | 736 | return Value;\r |
| | 737 | }\r |
| | 738 | \r |
| | 739 | \r |
| | 740 | \r |
| | 741 | /**\r |
| | 742 | This function provides a means by which to set a value for a given PCD token.\r |
| | 743 | \r |
| | 744 | Sets the 64-bit value for the token specified by TokenNumber and \r |
| | 745 | Guid to the value specified by Value. Value is returned.\r |
| | 746 | If Guid is NULL, then ASSERT().\r |
| | 747 | \r |
| | 748 | @param[in] Guid The pointer to a 128-bit unique value that \r |
| | 749 | designates which namespace to set a value from.\r |
| | 750 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 751 | @param[in] Value The 64-bit value to set.\r |
| | 752 | \r |
| | 753 | @return Return the value that was set.\r |
| | 754 | \r |
| | 755 | **/\r |
| | 756 | UINT64\r |
| | 757 | EFIAPI\r |
| | 758 | LibPcdSetEx64 (\r |
| | 759 | IN CONST GUID *Guid,\r |
| | 760 | IN UINTN TokenNumber,\r |
| | 761 | IN UINT64 Value\r |
| | 762 | )\r |
| | 763 | {\r |
| | 764 | EFI_STATUS Status;\r |
| | 765 | \r |
| | 766 | ASSERT (Guid != NULL);\r |
| | 767 | \r |
| | 768 | Status = GetPiPcdProtocol()->Set64 (Guid, TokenNumber, Value);\r |
| | 769 | ASSERT_EFI_ERROR (Status);\r |
| | 770 | \r |
| | 771 | return Value;\r |
| | 772 | }\r |
| | 773 | \r |
| | 774 | \r |
| | 775 | \r |
| | 776 | /**\r |
| | 777 | This function provides a means by which to set a value for a given PCD token.\r |
| | 778 | \r |
| | 779 | Sets a buffer for the token specified by TokenNumber to the value specified by \r |
| | 780 | Buffer and SizeOfBuffer. Buffer is returned. If SizeOfBuffer is greater than \r |
| | 781 | the maximum size support by TokenNumber, then set SizeOfBuffer to the maximum size \r |
| | 782 | supported by TokenNumber and return NULL to indicate that the set operation \r |
| | 783 | was not actually performed. \r |
| | 784 | \r |
| | 785 | If Guid is NULL, then ASSERT().\r |
| | 786 | If SizeOfBuffer is NULL, then ASSERT().\r |
| | 787 | If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r |
| | 788 | \r |
| | 789 | @param[in] Guid The pointer to a 128-bit unique value that \r |
| | 790 | designates which namespace to set a value from.\r |
| | 791 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 792 | @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r |
| | 793 | @param[in] Buffer A pointer to the buffer to set.\r |
| | 794 | \r |
| | 795 | @return Return the pointer to the buffer been set.\r |
| | 796 | \r |
| | 797 | **/\r |
| | 798 | VOID *\r |
| | 799 | EFIAPI\r |
| | 800 | LibPcdSetExPtr (\r |
| | 801 | IN CONST GUID *Guid,\r |
| | 802 | IN UINTN TokenNumber,\r |
| | 803 | IN OUT UINTN *SizeOfBuffer,\r |
| | 804 | IN VOID *Buffer\r |
| | 805 | )\r |
| | 806 | {\r |
| | 807 | EFI_STATUS Status;\r |
| | 808 | \r |
| | 809 | ASSERT (Guid != NULL);\r |
| | 810 | \r |
| | 811 | ASSERT (SizeOfBuffer != NULL);\r |
| | 812 | \r |
| | 813 | if (*SizeOfBuffer > 0) {\r |
| | 814 | ASSERT (Buffer != NULL);\r |
| | 815 | }\r |
| | 816 | \r |
| | 817 | Status = GetPiPcdProtocol()->SetPtr (Guid, TokenNumber, SizeOfBuffer, Buffer);\r |
| | 818 | if (EFI_ERROR (Status)) {\r |
| | 819 | return NULL;\r |
| | 820 | }\r |
| | 821 | \r |
| | 822 | return Buffer;\r |
| | 823 | }\r |
| | 824 | \r |
| | 825 | \r |
| | 826 | \r |
| | 827 | /**\r |
| | 828 | This function provides a means by which to set a value for a given PCD token.\r |
| | 829 | \r |
| | 830 | Sets the Boolean value for the token specified by TokenNumber and \r |
| | 831 | Guid to the value specified by Value. Value is returned.\r |
| | 832 | \r |
| | 833 | If Guid is NULL, then ASSERT().\r |
| | 834 | \r |
| | 835 | @param[in] Guid The pointer to a 128-bit unique value that \r |
| | 836 | designates which namespace to set a value from.\r |
| | 837 | @param[in] TokenNumber The PCD token number to set a current value for.\r |
| | 838 | @param[in] Value The Boolean value to set.\r |
| | 839 | \r |
| | 840 | @return Return the value that was set.\r |
| | 841 | \r |
| | 842 | **/\r |
| | 843 | BOOLEAN\r |
| | 844 | EFIAPI\r |
| | 845 | LibPcdSetExBool (\r |
| | 846 | IN CONST GUID *Guid,\r |
| | 847 | IN UINTN TokenNumber,\r |
| | 848 | IN BOOLEAN Value\r |
| | 849 | )\r |
| | 850 | {\r |
| | 851 | EFI_STATUS Status;\r |
| | 852 | \r |
| | 853 | ASSERT (Guid != NULL);\r |
| | 854 | \r |
| | 855 | Status = GetPiPcdProtocol()->SetBool (Guid, TokenNumber, Value);\r |
| | 856 | ASSERT_EFI_ERROR (Status);\r |
| | 857 | \r |
| | 858 | return Value;\r |
| | 859 | }\r |
| | 860 | \r |
| | 861 | \r |
| | 862 | \r |
| | 863 | /**\r |
| | 864 | Set up a notification function that is called when a specified token is set.\r |
| | 865 | \r |
| | 866 | When the token specified by TokenNumber and Guid is set, \r |
| | 867 | then notification function specified by NotificationFunction is called. \r |
| | 868 | If Guid is NULL, then the default token space is used.\r |
| | 869 | If NotificationFunction is NULL, then ASSERT().\r |
| | 870 | \r |
| | 871 | @param[in] Guid The pointer to a 128-bit unique value that designates which \r |
| | 872 | namespace to set a value from. If NULL, then the default \r |
| | 873 | token space is used.\r |
| | 874 | @param[in] TokenNumber The PCD token number to monitor.\r |
| | 875 | @param[in] NotificationFunction The function to call when the token \r |
| | 876 | specified by Guid and TokenNumber is set.\r |
| | 877 | \r |
| | 878 | **/\r |
| | 879 | VOID\r |
| | 880 | EFIAPI\r |
| | 881 | LibPcdCallbackOnSet (\r |
| | 882 | IN CONST GUID *Guid, OPTIONAL\r |
| | 883 | IN UINTN TokenNumber,\r |
| | 884 | IN PCD_CALLBACK NotificationFunction\r |
| | 885 | )\r |
| | 886 | {\r |
| | 887 | EFI_STATUS Status;\r |
| | 888 | \r |
| | 889 | ASSERT (NotificationFunction != NULL);\r |
| | 890 | \r |
| | 891 | Status = GetPiPcdProtocol()->CallbackOnSet (Guid, TokenNumber, (EFI_PCD_PROTOCOL_CALLBACK) NotificationFunction);\r |
| | 892 | ASSERT_EFI_ERROR (Status);\r |
| | 893 | \r |
| | 894 | return;\r |
| | 895 | }\r |
| | 896 | \r |
| | 897 | \r |
| | 898 | \r |
| | 899 | /**\r |
| | 900 | Disable a notification function that was established with LibPcdCallbackonSet().\r |
| | 901 | \r |
| | 902 | Disable a notification function that was previously established with LibPcdCallbackOnSet().\r |
| | 903 | If NotificationFunction is NULL, then ASSERT().\r |
| | 904 | If LibPcdCallbackOnSet() was not previously called with Guid, TokenNumber, \r |
| | 905 | and NotificationFunction, then ASSERT().\r |
| | 906 | \r |
| | 907 | @param[in] Guid Specify the GUID token space.\r |
| | 908 | @param[in] TokenNumber Specify the token number.\r |
| | 909 | @param[in] NotificationFunction The callback function to be unregistered.\r |
| | 910 | \r |
| | 911 | **/\r |
| | 912 | VOID\r |
| | 913 | EFIAPI\r |
| | 914 | LibPcdCancelCallback (\r |
| | 915 | IN CONST GUID *Guid, OPTIONAL\r |
| | 916 | IN UINTN TokenNumber,\r |
| | 917 | IN PCD_CALLBACK NotificationFunction\r |
| | 918 | )\r |
| | 919 | {\r |
| | 920 | EFI_STATUS Status;\r |
| | 921 | \r |
| | 922 | ASSERT (NotificationFunction != NULL);\r |
| | 923 | \r |
| | 924 | Status = GetPiPcdProtocol()->CancelCallback (Guid, TokenNumber, (EFI_PCD_PROTOCOL_CALLBACK) NotificationFunction);\r |
| | 925 | ASSERT_EFI_ERROR (Status);\r |
| | 926 | \r |
| | 927 | return;\r |
| | 928 | }\r |
| | 929 | \r |
| | 930 | \r |
| | 931 | \r |
| | 932 | /**\r |
| | 933 | Retrieves the next token in a token space.\r |
| | 934 | \r |
| | 935 | Retrieves the next PCD token number from the token space specified by Guid. \r |
| | 936 | If Guid is NULL, then the default token space is used. If TokenNumber is 0, \r |
| | 937 | then the first token number is returned. Otherwise, the token number that \r |
| | 938 | follows TokenNumber in the token space is returned. If TokenNumber is the last \r |
| | 939 | token number in the token space, then 0 is returned. \r |
| | 940 | \r |
| | 941 | If TokenNumber is not 0 and is not in the token space specified by Guid, then ASSERT().\r |
| | 942 | \r |
| | 943 | @param[in] Guid The pointer to a 128-bit unique value that designates which namespace \r |
| | 944 | to set a value from. If NULL, then the default token space is used.\r |
| | 945 | @param[in] TokenNumber The previous PCD token number. If 0, then retrieves the first PCD \r |
| | 946 | token number.\r |
| | 947 | \r |
| | 948 | @return The next valid token number.\r |
| | 949 | \r |
| | 950 | **/\r |
| | 951 | UINTN \r |
| | 952 | EFIAPI\r |
| | 953 | LibPcdGetNextToken (\r |
| | 954 | IN CONST GUID *Guid, OPTIONAL\r |
| | 955 | IN UINTN TokenNumber\r |
| | 956 | )\r |
| | 957 | {\r |
| | 958 | GetPiPcdProtocol()->GetNextToken (Guid, &TokenNumber);\r |
| | 959 | \r |
| | 960 | return TokenNumber;\r |
| | 961 | }\r |
| | 962 | \r |
| | 963 | \r |
| | 964 | \r |
| | 965 | /**\r |
| | 966 | Used to retrieve the list of available PCD token space GUIDs.\r |
| | 967 | \r |
| | 968 | Returns the PCD token space GUID that follows TokenSpaceGuid in the list of token spaces\r |
| | 969 | in the platform.\r |
| | 970 | If TokenSpaceGuid is NULL, then a pointer to the first PCD token spaces returned.\r |
| | 971 | If TokenSpaceGuid is the last PCD token space GUID in the list, then NULL is returned.\r |
| | 972 | \r |
| | 973 | @param TokenSpaceGuid The pointer to the a PCD token space GUID.\r |
| | 974 | \r |
| | 975 | @return The next valid token namespace.\r |
| | 976 | \r |
| | 977 | **/\r |
| | 978 | GUID *\r |
| | 979 | EFIAPI\r |
| | 980 | LibPcdGetNextTokenSpace (\r |
| | 981 | IN CONST GUID *TokenSpaceGuid\r |
| | 982 | )\r |
| | 983 | {\r |
| | 984 | GetPiPcdProtocol()->GetNextTokenSpace (&TokenSpaceGuid);\r |
| | 985 | \r |
| | 986 | return (GUID *)TokenSpaceGuid;\r |
| | 987 | }\r |
| | 988 | \r |
| | 989 | \r |
| | 990 | /**\r |
| | 991 | Sets a value of a patchable PCD entry that is type pointer.\r |
| | 992 | \r |
| | 993 | Sets the PCD entry specified by PatchVariable to the value specified by Buffer \r |
| | 994 | and SizeOfBuffer. Buffer is returned. If SizeOfBuffer is greater than \r |
| | 995 | MaximumDatumSize, then set SizeOfBuffer to MaximumDatumSize and return \r |
| | 996 | NULL to indicate that the set operation was not actually performed. \r |
| | 997 | If SizeOfBuffer is set to MAX_ADDRESS, then SizeOfBuffer must be set to \r |
| | 998 | MaximumDatumSize and NULL must be returned.\r |
| | 999 | \r |
| | 1000 | If PatchVariable is NULL, then ASSERT().\r |
| | 1001 | If SizeOfBuffer is NULL, then ASSERT().\r |
| | 1002 | If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r |
| | 1003 | \r |
| | 1004 | @param[in] PatchVariable A pointer to the global variable in a module that is \r |
| | 1005 | the target of the set operation.\r |
| | 1006 | @param[in] MaximumDatumSize The maximum size allowed for the PCD entry specified by PatchVariable.\r |
| | 1007 | @param[in, out] SizeOfBuffer A pointer to the size, in bytes, of Buffer.\r |
| | 1008 | @param[in] Buffer A pointer to the buffer to used to set the target variable.\r |
| | 1009 | \r |
| | 1010 | @return Return the pointer to the buffer been set.\r |
| | 1011 | \r |
| | 1012 | **/\r |
| | 1013 | VOID *\r |
| | 1014 | EFIAPI\r |
| | 1015 | LibPatchPcdSetPtr (\r |
| | 1016 | IN VOID *PatchVariable,\r |
| | 1017 | IN UINTN MaximumDatumSize,\r |
| | 1018 | IN OUT UINTN *SizeOfBuffer,\r |
| | 1019 | IN CONST VOID *Buffer\r |
| | 1020 | )\r |
| | 1021 | {\r |
| | 1022 | ASSERT (PatchVariable != NULL);\r |
| | 1023 | ASSERT (SizeOfBuffer != NULL);\r |
| | 1024 | \r |
| | 1025 | if (*SizeOfBuffer > 0) {\r |
| | 1026 | ASSERT (Buffer != NULL);\r |
| | 1027 | }\r |
| | 1028 | \r |
| | 1029 | if ((*SizeOfBuffer > MaximumDatumSize) ||\r |
| | 1030 | (*SizeOfBuffer == MAX_ADDRESS)) {\r |
| | 1031 | *SizeOfBuffer = MaximumDatumSize;\r |
| | 1032 | return NULL;\r |
| | 1033 | }\r |
| | 1034 | \r |
| | 1035 | CopyMem (PatchVariable, Buffer, *SizeOfBuffer);\r |
| | 1036 | \r |
| | 1037 | return (VOID *) Buffer;\r |
| | 1038 | }\r |
| | 1039 | \r |
| | 1040 | \r |
| | 1041 | \r |
projects / mirror_edk2.git / blame_incremental