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Sync up Pcd Library Instances and PCD Driver/PEIM with Pcd spec 0.51 and Mde 0.51
[mirror_edk2.git] / EdkModulePkg / Universal / PCD / Pei / Pcd.c
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52e1905d 1/** @file PCD PEIM\r
878ddf1f 2\r
3Copyright (c) 2006, Intel Corporation \r
4All rights reserved. This program and the accompanying materials \r
5are licensed and made available under the terms and conditions of the BSD License \r
6which accompanies this distribution. The full text of the license may be found at \r
7http://opensource.org/licenses/bsd-license.php \r
8 \r
9THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
10WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
11\r
12\r
13Module Name: Pcd.c\r
14\r
15**/\r
16\r
878ddf1f 17#include "Service.h"\r
18\r
19\r
20PCD_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 PcdRegisterCallBackOnSet,\r
54 PcdUnRegisterCallBackOnSet,\r
55 PeiPcdGetNextToken\r
56};\r
57\r
58\r
59\r
60STATIC EFI_PEI_PPI_DESCRIPTOR mPpiPCD = {\r
61 (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
62 &gPcdPpiGuid,\r
63 &mPcdPpiInstance\r
64};\r
65\r
66\r
67\r
68EFI_STATUS\r
69EFIAPI\r
70PcdPeimInit (\r
71 IN EFI_FFS_FILE_HEADER *FfsHeader,\r
72 IN EFI_PEI_SERVICES **PeiServices\r
73 )\r
74{\r
75 EFI_STATUS Status;\r
878ddf1f 76\r
52e1905d 77 BuildPcdDatabase ();\r
78 \r
878ddf1f 79 Status = PeiCoreInstallPpi (&mPpiPCD);\r
80\r
81 ASSERT_EFI_ERROR (Status);\r
82 \r
83 return EFI_SUCCESS;\r
84}\r
85\r
00b7af13 86VOID\r
878ddf1f 87EFIAPI\r
88PeiPcdSetSku (\r
00b7af13 89 IN SKU_ID SkuId\r
878ddf1f 90 )\r
91{\r
878ddf1f 92\r
00b7af13 93 GetPcdDatabase()->Init.SystemSkuId = SkuId;\r
878ddf1f 94\r
00b7af13 95 return;\r
878ddf1f 96}\r
97\r
98\r
99\r
100UINT8\r
101EFIAPI\r
102PeiPcdGet8 (\r
00b7af13 103 IN PCD_TOKEN_NUMBER TokenNumber\r
878ddf1f 104 )\r
105{\r
52e1905d 106 return *((UINT8 *) GetWorker (TokenNumber, sizeof (UINT8)));\r
878ddf1f 107}\r
108\r
109\r
110\r
111UINT16\r
112EFIAPI\r
113PeiPcdGet16 (\r
00b7af13 114 IN PCD_TOKEN_NUMBER TokenNumber\r
878ddf1f 115 )\r
116{\r
52e1905d 117 return ReadUnaligned16 (GetWorker (TokenNumber, sizeof (UINT16)));\r
878ddf1f 118}\r
119\r
120\r
121\r
122UINT32\r
123EFIAPI\r
124PeiPcdGet32 (\r
00b7af13 125 IN PCD_TOKEN_NUMBER TokenNumber\r
878ddf1f 126 )\r
127{\r
52e1905d 128 return ReadUnaligned32 (GetWorker (TokenNumber, sizeof (UINT32)));\r
878ddf1f 129}\r
130\r
131\r
132\r
133UINT64\r
134EFIAPI\r
135PeiPcdGet64 (\r
00b7af13 136 IN PCD_TOKEN_NUMBER TokenNumber\r
878ddf1f 137 )\r
138{\r
52e1905d 139 return ReadUnaligned64 (GetWorker (TokenNumber, sizeof (UINT64)));\r
878ddf1f 140}\r
141\r
142\r
143\r
144VOID *\r
145EFIAPI\r
146PeiPcdGetPtr (\r
00b7af13 147 IN PCD_TOKEN_NUMBER TokenNumber\r
878ddf1f 148 )\r
149{\r
52e1905d 150 return GetWorker (TokenNumber, 0);\r
878ddf1f 151}\r
152\r
153\r
154\r
155BOOLEAN\r
156EFIAPI\r
157PeiPcdGetBool (\r
00b7af13 158 IN PCD_TOKEN_NUMBER TokenNumber\r
878ddf1f 159 )\r
160{\r
52e1905d 161 return *((BOOLEAN *) GetWorker (TokenNumber, sizeof (BOOLEAN)));\r
878ddf1f 162}\r
163\r
164\r
165\r
166UINTN\r
167EFIAPI\r
168PeiPcdGetSize (\r
00b7af13 169 IN PCD_TOKEN_NUMBER TokenNumber\r
878ddf1f 170 )\r
171{\r
52e1905d 172 ASSERT (TokenNumber < PEI_LOCAL_TOKEN_NUMBER);\r
173\r
174 return GetPcdDatabase()->Init.SizeTable[TokenNumber];\r
878ddf1f 175}\r
176\r
177\r
178\r
179UINT8\r
180EFIAPI\r
181PeiPcdGet8Ex (\r
182 IN CONST EFI_GUID *Guid,\r
00b7af13 183 IN PCD_TOKEN_NUMBER ExTokenNumber\r
878ddf1f 184 )\r
185{\r
52e1905d 186 return *((UINT8 *) ExGetWorker (Guid, ExTokenNumber, sizeof (UINT8)));\r
878ddf1f 187}\r
188\r
189\r
190\r
191UINT16\r
192EFIAPI\r
193PeiPcdGet16Ex (\r
194 IN CONST EFI_GUID *Guid,\r
00b7af13 195 IN PCD_TOKEN_NUMBER ExTokenNumber\r
878ddf1f 196 )\r
197{\r
52e1905d 198 return ReadUnaligned16 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT16)));\r
878ddf1f 199}\r
200\r
201\r
202\r
203UINT32\r
204EFIAPI\r
205PeiPcdGet32Ex (\r
206 IN CONST EFI_GUID *Guid,\r
00b7af13 207 IN PCD_TOKEN_NUMBER ExTokenNumber\r
878ddf1f 208 )\r
209{\r
52e1905d 210 return ReadUnaligned32 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT32)));\r
878ddf1f 211}\r
212\r
213\r
214\r
215UINT64\r
216EFIAPI\r
217PeiPcdGet64Ex (\r
218 IN CONST EFI_GUID *Guid,\r
00b7af13 219 IN PCD_TOKEN_NUMBER ExTokenNumber\r
878ddf1f 220 )\r
221{\r
52e1905d 222 return ReadUnaligned64 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT64)));\r
878ddf1f 223}\r
224\r
225\r
226\r
227VOID *\r
228EFIAPI\r
229PeiPcdGetPtrEx (\r
230 IN CONST EFI_GUID *Guid,\r
00b7af13 231 IN PCD_TOKEN_NUMBER ExTokenNumber\r
878ddf1f 232 )\r
233{\r
52e1905d 234 return ExGetWorker (Guid, ExTokenNumber, 0);\r
878ddf1f 235}\r
236\r
237\r
238\r
239BOOLEAN\r
240EFIAPI\r
241PeiPcdGetBoolEx (\r
242 IN CONST EFI_GUID *Guid,\r
00b7af13 243 IN PCD_TOKEN_NUMBER ExTokenNumber\r
878ddf1f 244 )\r
245{\r
52e1905d 246 return *((BOOLEAN *) ExGetWorker (Guid, ExTokenNumber, sizeof (BOOLEAN)));\r
878ddf1f 247}\r
248\r
249\r
250\r
251UINTN\r
252EFIAPI\r
253PeiPcdGetSizeEx (\r
254 IN CONST EFI_GUID *Guid,\r
00b7af13 255 IN PCD_TOKEN_NUMBER ExTokenNumber\r
878ddf1f 256 )\r
257{\r
52e1905d 258 EX_PCD_ENTRY_ATTRIBUTE Attr;\r
259\r
260 GetExPcdTokenAttributes (Guid, ExTokenNumber, &Attr);\r
261 \r
262 return Attr.Size;\r
878ddf1f 263}\r
264\r
265\r
266\r
267EFI_STATUS\r
268EFIAPI\r
269PeiPcdSet8 (\r
00b7af13 270 IN PCD_TOKEN_NUMBER TokenNumber,\r
878ddf1f 271 IN UINT8 Value\r
272 )\r
273{\r
52e1905d 274 return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
878ddf1f 275}\r
276\r
277\r
278\r
279EFI_STATUS\r
280EFIAPI\r
281PeiPcdSet16 (\r
00b7af13 282 IN PCD_TOKEN_NUMBER TokenNumber,\r
878ddf1f 283 IN UINT16 Value\r
284 )\r
285{\r
52e1905d 286 return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
878ddf1f 287}\r
288\r
289\r
290\r
291EFI_STATUS\r
292EFIAPI\r
293PeiPcdSet32 (\r
00b7af13 294 IN PCD_TOKEN_NUMBER TokenNumber,\r
878ddf1f 295 IN UINT32 Value\r
296 )\r
297{\r
52e1905d 298 return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
878ddf1f 299}\r
300\r
301\r
302\r
303EFI_STATUS\r
304EFIAPI\r
305PeiPcdSet64 (\r
00b7af13 306 IN PCD_TOKEN_NUMBER TokenNumber,\r
878ddf1f 307 IN UINT64 Value\r
308 )\r
309{\r
52e1905d 310 return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
878ddf1f 311}\r
312\r
313\r
314EFI_STATUS\r
315EFIAPI\r
316PeiPcdSetPtr (\r
00b7af13 317 IN PCD_TOKEN_NUMBER TokenNumber,\r
318 IN UINTN SizeOfBuffer,\r
319 IN VOID *Buffer\r
878ddf1f 320 )\r
321{\r
00b7af13 322 return SetWorker (TokenNumber, Buffer, SizeOfBuffer, TRUE);\r
878ddf1f 323}\r
324\r
325\r
326\r
327EFI_STATUS\r
328EFIAPI\r
329PeiPcdSetBool (\r
00b7af13 330 IN PCD_TOKEN_NUMBER TokenNumber,\r
878ddf1f 331 IN BOOLEAN Value\r
332 )\r
333{\r
52e1905d 334 return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
878ddf1f 335}\r
336\r
337\r
338\r
339EFI_STATUS\r
340EFIAPI\r
341PeiPcdSet8Ex (\r
342 IN CONST EFI_GUID *Guid,\r
00b7af13 343 IN PCD_TOKEN_NUMBER ExTokenNumber,\r
878ddf1f 344 IN UINT8 Value\r
345 )\r
346{\r
52e1905d 347 return ExSetWorker(\r
348 ExTokenNumber, \r
349 Guid,\r
350 &Value, \r
351 sizeof (Value), \r
352 FALSE\r
353 );\r
878ddf1f 354}\r
355\r
356\r
357\r
358EFI_STATUS\r
359EFIAPI\r
360PeiPcdSet16Ex (\r
361 IN CONST EFI_GUID *Guid,\r
00b7af13 362 IN PCD_TOKEN_NUMBER ExTokenNumber,\r
878ddf1f 363 IN UINT16 Value\r
364 )\r
365{\r
52e1905d 366 return ExSetWorker(\r
367 ExTokenNumber, \r
368 Guid,\r
369 &Value, \r
370 sizeof (Value), \r
371 FALSE\r
372 );\r
878ddf1f 373}\r
374\r
375\r
376\r
377EFI_STATUS\r
378EFIAPI\r
379PeiPcdSet32Ex (\r
380 IN CONST EFI_GUID *Guid,\r
00b7af13 381 IN PCD_TOKEN_NUMBER ExTokenNumber,\r
878ddf1f 382 IN UINT32 Value\r
383 )\r
384{\r
52e1905d 385 return ExSetWorker(\r
386 ExTokenNumber, \r
387 Guid,\r
388 &Value, \r
389 sizeof (Value), \r
390 FALSE\r
391 );\r
878ddf1f 392}\r
393\r
394\r
395\r
396EFI_STATUS\r
397EFIAPI\r
398PeiPcdSet64Ex (\r
399 IN CONST EFI_GUID *Guid,\r
00b7af13 400 IN PCD_TOKEN_NUMBER ExTokenNumber,\r
878ddf1f 401 IN UINT64 Value\r
402 )\r
403{\r
52e1905d 404 return ExSetWorker(\r
405 ExTokenNumber, \r
406 Guid,\r
407 &Value, \r
408 sizeof (Value), \r
409 FALSE\r
410 );\r
878ddf1f 411}\r
412\r
413\r
414\r
415EFI_STATUS\r
416EFIAPI\r
417PeiPcdSetPtrEx (\r
418 IN CONST EFI_GUID *Guid,\r
00b7af13 419 IN PCD_TOKEN_NUMBER ExTokenNumber,\r
420 IN UINTN SizeOfBuffer,\r
421 IN VOID *Value\r
878ddf1f 422 )\r
423{\r
52e1905d 424 return ExSetWorker(\r
425 ExTokenNumber, \r
426 Guid,\r
00b7af13 427 Value, \r
428 SizeOfBuffer, \r
52e1905d 429 TRUE\r
430 );\r
878ddf1f 431}\r
432\r
433\r
434\r
435EFI_STATUS\r
436EFIAPI\r
437PeiPcdSetBoolEx (\r
438 IN CONST EFI_GUID *Guid,\r
00b7af13 439 IN PCD_TOKEN_NUMBER ExTokenNumber,\r
878ddf1f 440 IN BOOLEAN Value\r
441 )\r
442{\r
52e1905d 443 return ExSetWorker(\r
444 ExTokenNumber, \r
445 Guid,\r
446 &Value, \r
447 sizeof (Value), \r
448 FALSE\r
449 );\r
878ddf1f 450}\r
451\r
452\r
453\r
454\r
455EFI_STATUS\r
456EFIAPI\r
457PcdRegisterCallBackOnSet (\r
00b7af13 458 IN PCD_TOKEN_NUMBER ExTokenNumber,\r
878ddf1f 459 IN CONST EFI_GUID *Guid, OPTIONAL\r
460 IN PCD_PPI_CALLBACK CallBackFunction\r
461 )\r
462{\r
52e1905d 463 return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, TRUE);\r
878ddf1f 464}\r
465\r
466\r
467\r
468EFI_STATUS\r
469EFIAPI\r
470PcdUnRegisterCallBackOnSet (\r
00b7af13 471 IN PCD_TOKEN_NUMBER ExTokenNumber,\r
878ddf1f 472 IN CONST EFI_GUID *Guid, OPTIONAL\r
473 IN PCD_PPI_CALLBACK CallBackFunction\r
474 )\r
475{\r
52e1905d 476 return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, FALSE);\r
878ddf1f 477}\r
478\r
479\r
480\r
481EFI_STATUS\r
482EFIAPI\r
483PeiPcdGetNextToken (\r
484 IN CONST EFI_GUID *Guid, OPTIONAL\r
00b7af13 485 IN OUT PCD_TOKEN_NUMBER *TokenNumber\r
878ddf1f 486 )\r
487{\r
00b7af13 488 UINTN GuidTableIdx;\r
489 PEI_PCD_DATABASE *PeiPcdDb;\r
490 EFI_GUID *MatchGuid;\r
491 DYNAMICEX_MAPPING *ExMapTable;\r
492 UINTN i;\r
493 BOOLEAN Found;\r
494 \r
52e1905d 495 if (Guid == NULL) {\r
496 *TokenNumber++;\r
497\r
00b7af13 498 if (*TokenNumber >= PEI_NEX_TOKEN_NUMBER) {\r
52e1905d 499 *TokenNumber = 0;\r
500 }\r
00b7af13 501 \r
502 } else {\r
503\r
504 if (PEI_EXMAP_TABLE_EMPTY) {\r
505 *TokenNumber = (UINTN) PCD_INVALID_TOKEN_NUMBER;\r
506 return EFI_NOT_FOUND;\r
507 }\r
508 \r
509 //\r
510 // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order\r
511 // 1) ExGuid\r
512 // 2) ExTokenNumber\r
513 //\r
514 PeiPcdDb = GetPcdDatabase ();\r
515 \r
516 MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), Guid);\r
517\r
518 if (MatchGuid == NULL) {\r
519 *TokenNumber = (UINTN) PCD_INVALID_TOKEN_NUMBER;\r
520 return EFI_NOT_FOUND;\r
521 }\r
522\r
523 GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;\r
524\r
525 ExMapTable = PeiPcdDb->Init.ExMapTable;\r
526\r
527 Found = FALSE;\r
528 for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r
529 if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r
530 Found = TRUE;\r
531 break;\r
532 }\r
533 }\r
534\r
535 if (Found) {\r
536 if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r
537 *TokenNumber = ExMapTable[i].ExTokenNumber;\r
538 return EFI_SUCCESS;\r
539 }\r
540 \r
541 for ( ; ExMapTable[i].ExGuidIndex == GuidTableIdx; i++) {\r
542 if (ExMapTable[i].ExTokenNumber == *TokenNumber) {\r
543 i++;\r
544 if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r
545 *TokenNumber = ExMapTable[i].ExTokenNumber;\r
546 return EFI_SUCCESS;\r
547 } else {\r
548 *TokenNumber = (UINTN) PCD_INVALID_TOKEN_NUMBER;\r
549 return EFI_SUCCESS;\r
550 }\r
551 }\r
552 }\r
553\r
554 return EFI_NOT_FOUND;\r
555 }\r
556 \r
557 }\r
558\r
559 return EFI_SUCCESS;\r
560}\r
561\r
562EFI_GUID *\r
563EFIAPI\r
564PeiPcdGetNextTokenSpaceGuid (\r
565 IN CONST EFI_GUID *Guid\r
566 )\r
567{\r
568 UINTN GuidTableIdx;\r
569 EFI_GUID *MatchGuid;\r
570 PEI_PCD_DATABASE *PeiPcdDb;\r
571 DYNAMICEX_MAPPING *ExMapTable;\r
572 UINTN i;\r
573 BOOLEAN Found;\r
574\r
575 if (PEI_EXMAP_TABLE_EMPTY) {\r
576 return NULL;\r
52e1905d 577 }\r
578\r
579 //\r
00b7af13 580 // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order\r
581 // 1) ExGuid\r
582 // 2) ExTokenNumber\r
52e1905d 583 //\r
00b7af13 584 PeiPcdDb = GetPcdDatabase ();\r
52e1905d 585\r
00b7af13 586 MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), Guid);\r
587\r
588 if (MatchGuid == NULL) {\r
589 return NULL;\r
590 }\r
591 \r
592 GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;\r
878ddf1f 593\r
00b7af13 594 ExMapTable = PeiPcdDb->Init.ExMapTable;\r
595\r
596 Found = FALSE;\r
597 for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r
598 if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r
599 Found = TRUE;\r
600 break;\r
601 }\r
602 }\r
603\r
604 if (Found) {\r
605 for ( ; i < PEI_EXMAPPING_TABLE_SIZE; i++ ) {\r
606 if (ExMapTable[i].ExGuidIndex != GuidTableIdx ) {\r
607 if (i < PEI_EXMAPPING_TABLE_SIZE) {\r
608 return &PeiPcdDb->Init.GuidTable[ExMapTable[i].ExGuidIndex];\r
609 } else {\r
610 return NULL;\r
611 }\r
612 }\r
613 }\r
614 }\r
615\r
616 return NULL;\r
617\r
618}\r
878ddf1f 619\r
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