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878ddf1f 1/** @file\r
2Implementation of PcdLib class library for DXE phase.\r
3\r
4Copyright (c) 2006, Intel Corporation<BR>\r
5All rights reserved. This program and the accompanying materials \r
6are licensed and made available under the terms and conditions of the BSD License \r
7which accompanies this distribution. The full text of the license may be found at \r
8http://opensource.org/licenses/bsd-license.php \r
9 \r
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
12\r
13\r
14Module Name: DxePcdLib.c\r
15\r
16**/\r
17\r
18static PCD_PROTOCOL *mPcd;\r
19\r
20/**\r
21 The constructor function caches the PCD_PROTOCOL pointer.\r
22\r
24e25d11 23 @param[in] ImageHandle The firmware allocated handle for the EFI image. \r
878ddf1f 24 @param[in] SystemTable A pointer to the EFI System Table.\r
25 \r
26 @retval EFI_SUCCESS The constructor always return EFI_SUCCESS.\r
27\r
28**/\r
29EFI_STATUS\r
30EFIAPI\r
31PcdLibConstructor (\r
32 IN EFI_HANDLE ImageHandle,\r
33 IN EFI_SYSTEM_TABLE *SystemTable\r
34 )\r
35{\r
36 EFI_STATUS Status;\r
37\r
38 Status = gBS->LocateProtocol (&gPcdProtocolGuid, NULL, (VOID **)&mPcd);\r
39 ASSERT_EFI_ERROR (Status);\r
40\r
41 return EFI_SUCCESS;\r
42}\r
43\r
44\r
45/**\r
46 Sets the current SKU in the PCD database to the value specified by SkuId. SkuId is returned.\r
47\r
48 @param[in] SkuId The SKU value that will be used when the PCD service will retrieve and \r
49 set values associated with a PCD token.\r
50\r
b16ef805 51 @retval SKU_ID Return the SKU ID that just be set.\r
878ddf1f 52\r
53**/\r
8a43e8dd 54UINTN\r
878ddf1f 55EFIAPI\r
56LibPcdSetSku (\r
8a43e8dd 57 IN UINTN SkuId\r
878ddf1f 58 )\r
59{\r
bb5545b6 60 ASSERT (SkuId < 0x100);\r
61\r
b16ef805 62 mPcd->SetSku (SkuId);\r
878ddf1f 63\r
64 return SkuId;\r
65}\r
66\r
67\r
68\r
69/**\r
70 Returns the 8-bit value for the token specified by TokenNumber. \r
71\r
72 @param[in] The PCD token number to retrieve a current value for.\r
73\r
74 @retval UINT8 Returns the 8-bit value for the token specified by TokenNumber. \r
75\r
76**/\r
77UINT8\r
78EFIAPI\r
79LibPcdGet8 (\r
8a43e8dd 80 IN UINTN TokenNumber\r
878ddf1f 81 )\r
82{\r
83 return mPcd->Get8 (TokenNumber);\r
84}\r
85\r
86\r
87\r
88/**\r
89 Returns the 16-bit value for the token specified by TokenNumber. \r
90\r
91 @param[in] The PCD token number to retrieve a current value for.\r
92\r
93 @retval UINT16 Returns the 16-bit value for the token specified by TokenNumber. \r
94\r
95**/\r
96UINT16\r
97EFIAPI\r
98LibPcdGet16 (\r
8a43e8dd 99 IN UINTN TokenNumber\r
878ddf1f 100 )\r
101{\r
102 return mPcd->Get16 (TokenNumber);\r
103}\r
104\r
105\r
106\r
107/**\r
108 Returns the 32-bit value for the token specified by TokenNumber. \r
109\r
110 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
111\r
112 @retval UINT32 Returns the 32-bit value for the token specified by TokenNumber.\r
113\r
114**/\r
115UINT32\r
116EFIAPI\r
117LibPcdGet32 (\r
8a43e8dd 118 IN UINTN TokenNumber\r
878ddf1f 119 )\r
120{\r
121 return mPcd->Get32 (TokenNumber);\r
122}\r
123\r
124\r
125\r
126/**\r
127 Returns the 64-bit value for the token specified by TokenNumber.\r
128\r
129 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
130\r
131 @retval UINT64 Returns the 64-bit value for the token specified by TokenNumber.\r
132\r
133**/\r
134UINT64\r
135EFIAPI\r
136LibPcdGet64 (\r
8a43e8dd 137 IN UINTN TokenNumber\r
878ddf1f 138 )\r
139{\r
140 return mPcd->Get64 (TokenNumber);\r
141}\r
142\r
143\r
144\r
145/**\r
146 Returns the pointer to the buffer of the token specified by TokenNumber.\r
147\r
148 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
149\r
150 @retval VOID* Returns the pointer to the token specified by TokenNumber.\r
151\r
152**/\r
153VOID *\r
154EFIAPI\r
155LibPcdGetPtr (\r
8a43e8dd 156 IN UINTN TokenNumber\r
878ddf1f 157 )\r
158{\r
159 return mPcd->GetPtr (TokenNumber);\r
160}\r
161\r
162\r
163\r
164/**\r
165 Returns the Boolean value of the token specified by TokenNumber. \r
166\r
167 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
168\r
169 @retval BOOLEAN Returns the Boolean value of the token specified by TokenNumber. \r
170\r
171**/\r
172BOOLEAN \r
173EFIAPI\r
174LibPcdGetBool (\r
8a43e8dd 175 IN UINTN TokenNumber\r
878ddf1f 176 )\r
177{\r
178 return mPcd->GetBool (TokenNumber);\r
179}\r
180\r
181\r
182\r
183/**\r
184 Returns the size of the token specified by TokenNumber. \r
185\r
186 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
187\r
188 @retval UINTN Returns the size of the token specified by TokenNumber. \r
189\r
190**/\r
191UINTN\r
192EFIAPI\r
193LibPcdGetSize (\r
8a43e8dd 194 IN UINTN TokenNumber\r
878ddf1f 195 )\r
196{\r
197 return mPcd->GetSize (TokenNumber);\r
198}\r
199\r
200\r
201\r
202/**\r
203 Returns the 8-bit value for the token specified by TokenNumber and Guid.\r
204 If Guid is NULL, then ASSERT(). \r
205\r
206 @param[in] Guid Pointer to a 128-bit unique value that designates \r
207 which namespace to retrieve a value from.\r
208 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
209\r
210 @retval UINT8 Return the UINT8.\r
211\r
212**/\r
213UINT8\r
214EFIAPI\r
215LibPcdGetEx8 (\r
216 IN CONST GUID *Guid,\r
8a43e8dd 217 IN UINTN TokenNumber\r
878ddf1f 218 )\r
219{\r
220 ASSERT (Guid != NULL);\r
221 \r
222 return mPcd->Get8Ex (Guid, TokenNumber);\r
223}\r
224\r
225\r
226/**\r
227 Returns the 16-bit value for the token specified by TokenNumber and Guid.\r
228 If Guid is NULL, then ASSERT(). \r
229\r
230 @param[in] Guid Pointer to a 128-bit unique value that designates \r
231 which namespace to retrieve a value from.\r
232 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
233\r
234 @retval UINT16 Return the UINT16.\r
235\r
236**/\r
237UINT16\r
238EFIAPI\r
239LibPcdGetEx16 (\r
240 IN CONST GUID *Guid,\r
8a43e8dd 241 IN UINTN TokenNumber\r
878ddf1f 242 )\r
243{\r
244 ASSERT (Guid != NULL);\r
245\r
246 return mPcd->Get16Ex (Guid, TokenNumber);\r
247}\r
248\r
249\r
250/**\r
251 Returns the 32-bit value for the token specified by TokenNumber and Guid.\r
252 If Guid is NULL, then ASSERT(). \r
253\r
254 @param[in] Guid Pointer to a 128-bit unique value that designates \r
255 which namespace to retrieve a value from.\r
256 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
257\r
258 @retval UINT32 Return the UINT32.\r
259\r
260**/\r
261UINT32\r
262EFIAPI\r
263LibPcdGetEx32 (\r
264 IN CONST GUID *Guid,\r
8a43e8dd 265 IN UINTN TokenNumber\r
878ddf1f 266 )\r
267{\r
268 ASSERT (Guid != NULL);\r
269\r
270 return mPcd->Get32Ex (Guid, TokenNumber);\r
271}\r
272\r
273\r
274\r
275/**\r
276 Returns the 64-bit value for the token specified by TokenNumber and Guid.\r
277 If Guid is NULL, then ASSERT(). \r
278\r
279 @param[in] Guid Pointer to a 128-bit unique value that designates \r
280 which namespace to retrieve a value from.\r
281 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
282\r
283 @retval UINT64 Return the UINT64.\r
284\r
285**/\r
286UINT64\r
287EFIAPI\r
288LibPcdGetEx64 (\r
289 IN CONST GUID *Guid,\r
8a43e8dd 290 IN UINTN TokenNumber\r
878ddf1f 291 )\r
292{\r
293 ASSERT (Guid != NULL);\r
294 \r
295 return mPcd->Get64Ex (Guid, TokenNumber);\r
296}\r
297\r
298\r
299\r
300/**\r
301 Returns the pointer to the token specified by TokenNumber and Guid.\r
302 If Guid is NULL, then ASSERT(). \r
303\r
304 @param[in] Guid Pointer to a 128-bit unique value that designates \r
305 which namespace to retrieve a value from.\r
306 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
307\r
308 @retval VOID* Return the VOID* pointer.\r
309\r
310**/\r
311VOID *\r
312EFIAPI\r
313LibPcdGetExPtr (\r
314 IN CONST GUID *Guid,\r
8a43e8dd 315 IN UINTN TokenNumber\r
878ddf1f 316 )\r
317{\r
318 ASSERT (Guid != NULL);\r
319\r
320 return mPcd->GetPtrEx (Guid, TokenNumber);\r
321}\r
322\r
323\r
324\r
325/**\r
326 Returns the Boolean value of the token specified by TokenNumber and Guid. \r
327 If Guid is NULL, then ASSERT(). \r
328\r
329 @param[in] Guid Pointer to a 128-bit unique value that designates \r
330 which namespace to retrieve a value from.\r
331 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
332\r
333 @retval BOOLEAN Return the BOOLEAN.\r
334\r
335**/\r
336BOOLEAN\r
337EFIAPI\r
338LibPcdGetExBool (\r
339 IN CONST GUID *Guid,\r
8a43e8dd 340 IN UINTN TokenNumber\r
878ddf1f 341 )\r
342{\r
343 ASSERT (Guid != NULL);\r
344\r
345 return mPcd->GetBoolEx (Guid, TokenNumber);\r
346}\r
347\r
348\r
349\r
350/**\r
351 Returns the size of the token specified by TokenNumber and Guid. \r
352 If Guid is NULL, then ASSERT(). \r
353\r
354 @param[in] Guid Pointer to a 128-bit unique value that designates \r
355 which namespace to retrieve a value from.\r
356 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
357\r
358 @retval UINTN Return the size.\r
359\r
360**/\r
361UINTN\r
362EFIAPI\r
363LibPcdGetExSize (\r
364 IN CONST GUID *Guid,\r
8a43e8dd 365 IN UINTN TokenNumber\r
878ddf1f 366 )\r
367{\r
368 ASSERT (Guid != NULL);\r
369\r
370 return mPcd->GetSizeEx (Guid, TokenNumber);\r
371}\r
372\r
373\r
374\r
375/**\r
376 Sets the 8-bit value for the token specified by TokenNumber \r
377 to the value specified by Value. Value is returned.\r
378 \r
379 @param[in] TokenNumber The PCD token number to set a current value for.\r
380 @param[in] Value The 8-bit value to set.\r
381\r
382 @retval UINT8 Return the value been set.\r
383\r
384**/\r
385UINT8\r
386EFIAPI\r
387LibPcdSet8 (\r
8a43e8dd 388 IN UINTN TokenNumber,\r
878ddf1f 389 IN UINT8 Value\r
390 )\r
391{\r
392 EFI_STATUS Status;\r
393\r
394 Status = mPcd->Set8 (TokenNumber, Value);\r
395\r
396 ASSERT_EFI_ERROR (Status);\r
397 \r
398 return Value;\r
399}\r
400\r
401\r
402\r
403/**\r
404 Sets the 16-bit value for the token specified by TokenNumber \r
405 to the value specified by Value. Value is returned.\r
406 \r
407 @param[in] TokenNumber The PCD token number to set a current value for.\r
408 @param[in] Value The 16-bit value to set.\r
409\r
410 @retval UINT16 Return the value been set.\r
411\r
412**/\r
413UINT16\r
414EFIAPI\r
415LibPcdSet16 (\r
8a43e8dd 416 IN UINTN TokenNumber,\r
878ddf1f 417 IN UINT16 Value\r
418 )\r
419{\r
420 EFI_STATUS Status;\r
421\r
422 Status = mPcd->Set16 (TokenNumber, Value);\r
423\r
424 ASSERT_EFI_ERROR (Status);\r
425 \r
426 return Value;\r
427}\r
428\r
429\r
430\r
431/**\r
432 Sets the 32-bit value for the token specified by TokenNumber \r
433 to the value specified by Value. Value is returned.\r
434 \r
435 @param[in] TokenNumber The PCD token number to set a current value for.\r
436 @param[in] Value The 32-bit value to set.\r
437\r
438 @retval UINT32 Return the value been set.\r
439\r
440**/\r
441UINT32\r
442EFIAPI\r
443LibPcdSet32 (\r
8a43e8dd 444 IN UINTN TokenNumber,\r
878ddf1f 445 IN UINT32 Value\r
446 )\r
447{\r
448 EFI_STATUS Status;\r
449 Status = mPcd->Set32 (TokenNumber, Value);\r
450\r
451 ASSERT_EFI_ERROR (Status);\r
452\r
453 return Value;\r
454}\r
455\r
456\r
457\r
458/**\r
459 Sets the 64-bit value for the token specified by TokenNumber \r
460 to the value specified by Value. Value is returned.\r
461 \r
462 @param[in] TokenNumber The PCD token number to set a current value for.\r
463 @param[in] Value The 64-bit value to set.\r
464\r
465 @retval UINT64 Return the value been set.\r
466\r
467**/\r
468UINT64\r
469EFIAPI\r
470LibPcdSet64 (\r
8a43e8dd 471 IN UINTN TokenNumber,\r
878ddf1f 472 IN UINT64 Value\r
473 )\r
474{\r
475 EFI_STATUS Status;\r
476\r
477 Status = mPcd->Set64 (TokenNumber, Value);\r
478\r
479 ASSERT_EFI_ERROR (Status);\r
480\r
481 return Value;\r
482}\r
483\r
484\r
485\r
486/**\r
487 Sets a buffer for the token specified by TokenNumber to \r
4276d5da 488 the value specified by Buffer and SizeOfValue. Buffer to\r
489 be set is returned. The content of the buffer could be \r
490 overwritten if a Callback on SET is registered with this\r
491 TokenNumber.\r
492 \r
493 If SizeOfValue is greater than the maximum \r
494 size support by TokenNumber, then set SizeOfValue to the \r
495 maximum size supported by TokenNumber and return NULL to \r
496 indicate that the set operation was not actually performed. \r
497 \r
498 If SizeOfValue > 0 and Buffer is NULL, then ASSERT().\r
878ddf1f 499 \r
500 @param[in] TokenNumber The PCD token number to set a current value for.\r
4276d5da 501 @param[in,out] SizeOfBuffer The size, in bytes, of Buffer.\r
878ddf1f 502 @param[in] Value A pointer to the buffer to set.\r
503\r
504 @retval VOID* Return the pointer for the buffer been set.\r
505\r
506**/\r
4276d5da 507\r
878ddf1f 508VOID *\r
509EFIAPI\r
510LibPcdSetPtr (\r
4276d5da 511 IN UINTN TokenNumber,\r
512 IN OUT UINTN *SizeOfBuffer,\r
513 IN VOID *Buffer\r
878ddf1f 514 )\r
515{\r
516 EFI_STATUS Status;\r
4276d5da 517 UINTN Size;\r
3534cbb7 518\r
519 if (*SizeOfBuffer > 0) {\r
520 ASSERT (Buffer != NULL);\r
521 }\r
878ddf1f 522\r
4276d5da 523 Size = LibPcdGetSize (TokenNumber);\r
524 \r
525 if (*SizeOfBuffer > Size) {\r
526 *SizeOfBuffer = Size;\r
527 return NULL;\r
528 }\r
529\r
530 Status = mPcd->SetPtr (TokenNumber, *SizeOfBuffer, Buffer);\r
878ddf1f 531\r
532 ASSERT_EFI_ERROR (Status);\r
533\r
b16ef805 534 return Buffer;\r
878ddf1f 535}\r
536\r
537\r
538\r
539/**\r
540 Sets the Boolean value for the token specified by TokenNumber \r
541 to the value specified by Value. Value is returned.\r
542 \r
543 @param[in] TokenNumber The PCD token number to set a current value for.\r
544 @param[in] Value The boolean value to set.\r
545\r
546 @retval BOOLEAN Return the value been set.\r
547\r
548**/\r
549BOOLEAN\r
550EFIAPI\r
551LibPcdSetBool (\r
8a43e8dd 552 IN UINTN TokenNumber,\r
878ddf1f 553 IN BOOLEAN Value\r
554 )\r
555{\r
556 EFI_STATUS Status;\r
557\r
558 Status = mPcd->SetBool (TokenNumber, Value);\r
559\r
560 ASSERT_EFI_ERROR (Status);\r
561\r
562 return Value;\r
563}\r
564\r
565\r
566\r
567/**\r
568 Sets the 8-bit value for the token specified by TokenNumber and \r
569 Guid to the value specified by Value. Value is returned.\r
570 If Guid is NULL, then ASSERT().\r
571 \r
572 @param[in] Guid Pointer to a 128-bit unique value that \r
573 designates which namespace to set a value from.\r
574 @param[in] TokenNumber The PCD token number to set a current value for.\r
575 @param[in] Value The 8-bit value to set.\r
576\r
577 @retval UINT8 Return the value been set.\r
578\r
579**/\r
580UINT8\r
581EFIAPI\r
582LibPcdSetEx8 (\r
583 IN CONST GUID *Guid,\r
8a43e8dd 584 IN UINTN TokenNumber,\r
878ddf1f 585 IN UINT8 Value\r
586 )\r
587{\r
588 EFI_STATUS Status;\r
589\r
590 ASSERT (Guid != NULL);\r
591\r
592 Status = mPcd->Set8Ex (Guid, TokenNumber, Value);\r
593\r
594 ASSERT_EFI_ERROR (Status);\r
595\r
596 return Value;\r
597}\r
598\r
599\r
600\r
601/**\r
602 Sets the 16-bit value for the token specified by TokenNumber and \r
603 Guid to the value specified by Value. Value is returned.\r
604 If Guid is NULL, then ASSERT().\r
605 \r
606 @param[in] Guid Pointer to a 128-bit unique value that \r
607 designates which namespace to set a value from.\r
608 @param[in] TokenNumber The PCD token number to set a current value for.\r
609 @param[in] Value The 16-bit value to set.\r
610\r
611 @retval UINT8 Return the value been set.\r
612\r
613**/\r
614UINT16\r
615EFIAPI\r
616LibPcdSetEx16 (\r
617 IN CONST GUID *Guid,\r
8a43e8dd 618 IN UINTN TokenNumber,\r
878ddf1f 619 IN UINT16 Value\r
620 )\r
621{\r
622 EFI_STATUS Status;\r
623\r
624 ASSERT (Guid != NULL);\r
625\r
626 Status = mPcd->Set16Ex (Guid, TokenNumber, Value);\r
627\r
628 ASSERT_EFI_ERROR (Status);\r
629\r
630 return Value;\r
631}\r
632\r
633\r
634\r
635/**\r
636 Sets the 32-bit value for the token specified by TokenNumber and \r
637 Guid to the value specified by Value. Value is returned.\r
638 If Guid is NULL, then ASSERT().\r
639 \r
640 @param[in] Guid Pointer to a 128-bit unique value that \r
641 designates which namespace to set a value from.\r
642 @param[in] TokenNumber The PCD token number to set a current value for.\r
643 @param[in] Value The 32-bit value to set.\r
644\r
645 @retval UINT32 Return the value been set.\r
646\r
647**/\r
648UINT32\r
649EFIAPI\r
650LibPcdSetEx32 (\r
651 IN CONST GUID *Guid,\r
8a43e8dd 652 IN UINTN TokenNumber,\r
878ddf1f 653 IN UINT32 Value\r
654 )\r
655{\r
656 EFI_STATUS Status;\r
657\r
658 ASSERT (Guid != NULL);\r
659\r
660 Status = mPcd->Set32Ex (Guid, TokenNumber, Value);\r
661\r
662 ASSERT_EFI_ERROR (Status);\r
663\r
664 return Value;\r
665}\r
666\r
667\r
668\r
669/**\r
670 Sets the 64-bit value for the token specified by TokenNumber and \r
671 Guid to the value specified by Value. Value is returned.\r
672 If Guid is NULL, then ASSERT().\r
673 \r
674 @param[in] Guid Pointer to a 128-bit unique value that \r
675 designates which namespace to set a value from.\r
676 @param[in] TokenNumber The PCD token number to set a current value for.\r
677 @param[in] Value The 64-bit value to set.\r
678\r
679 @retval UINT64 Return the value been set.\r
680\r
681**/\r
682UINT64\r
683EFIAPI\r
684LibPcdSetEx64 (\r
685 IN CONST GUID *Guid,\r
8a43e8dd 686 IN UINTN TokenNumber,\r
878ddf1f 687 IN UINT64 Value\r
688 )\r
689{\r
690 EFI_STATUS Status;\r
691\r
692 ASSERT (Guid != NULL);\r
693\r
694 Status = mPcd->Set64Ex (Guid, TokenNumber, Value);\r
695\r
696 ASSERT_EFI_ERROR (Status);\r
697\r
698 return Value;\r
699}\r
700\r
701\r
702\r
703/**\r
4276d5da 704 Sets a buffer for the token specified by TokenNumber to the value specified by \r
705 Buffer and SizeOfValue. Buffer is returned. If SizeOfValue is greater than \r
706 the maximum size support by TokenNumber, then set SizeOfValue to the maximum size \r
707 supported by TokenNumber and return NULL to indicate that the set operation \r
708 was not actually performed. \r
709 \r
710 If SizeOfValue > 0 and Buffer is NULL, then ASSERT().\r
878ddf1f 711 \r
712 @param[in] Guid Pointer to a 128-bit unique value that \r
713 designates which namespace to set a value from.\r
714 @param[in] TokenNumber The PCD token number to set a current value for.\r
4276d5da 715 @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r
716 @param[in] Buffer A pointer to the buffer to set.\r
878ddf1f 717\r
4276d5da 718 @retval VOID * Return the pinter to the buffer been set.\r
878ddf1f 719\r
720**/\r
721VOID *\r
722EFIAPI\r
723LibPcdSetExPtr (\r
4276d5da 724 IN CONST GUID *Guid,\r
725 IN UINTN TokenNumber,\r
726 IN OUT UINTN *SizeOfBuffer,\r
727 IN VOID *Buffer\r
878ddf1f 728 )\r
729{\r
4276d5da 730 EFI_STATUS Status;\r
731 UINTN Size;\r
878ddf1f 732\r
bb5545b6 733 ASSERT (Guid != NULL);\r
734\r
735 ASSERT (SizeOfBuffer != NULL);\r
736\r
3534cbb7 737 if (*SizeOfBuffer > 0) {\r
738 ASSERT (Buffer != NULL);\r
739 }\r
878ddf1f 740\r
bb5545b6 741\r
4276d5da 742 Size = LibPcdGetExSize (Guid, TokenNumber);\r
743 if (*SizeOfBuffer > Size) {\r
744 *SizeOfBuffer = Size;\r
745 return NULL;\r
746 }\r
747\r
748 Status = mPcd->SetPtrEx (Guid, TokenNumber, *SizeOfBuffer, Buffer);\r
878ddf1f 749\r
750 ASSERT_EFI_ERROR (Status);\r
751\r
b16ef805 752 return Buffer;\r
878ddf1f 753}\r
754\r
755\r
756\r
757/**\r
758 Sets the Boolean value for the token specified by TokenNumber and \r
759 Guid to the value specified by Value. Value is returned.\r
760 If Guid is NULL, then ASSERT().\r
761 \r
762 @param[in] Guid Pointer to a 128-bit unique value that \r
763 designates which namespace to set a value from.\r
764 @param[in] TokenNumber The PCD token number to set a current value for.\r
765 @param[in] Value The Boolean value to set.\r
766\r
767 @retval Boolean Return the value been set.\r
768\r
769**/\r
770BOOLEAN\r
771EFIAPI\r
772LibPcdSetExBool (\r
773 IN CONST GUID *Guid,\r
8a43e8dd 774 IN UINTN TokenNumber,\r
878ddf1f 775 IN BOOLEAN Value\r
776 )\r
777{\r
778 EFI_STATUS Status;\r
779\r
780 ASSERT (Guid != NULL);\r
781\r
782 Status = mPcd->SetBoolEx (Guid, TokenNumber, Value);\r
783\r
784 ASSERT_EFI_ERROR (Status);\r
785\r
786 return Value;\r
787}\r
788\r
789\r
790\r
791/**\r
792 When the token specified by TokenNumber and Guid is set, \r
793 then notification function specified by NotificationFunction is called. \r
794 If Guid is NULL, then the default token space is used. \r
795 If NotificationFunction is NULL, then ASSERT().\r
796\r
797 @param[in] Guid Pointer to a 128-bit unique value that designates which \r
798 namespace to set a value from. If NULL, then the default \r
799 token space is used.\r
800 @param[in] TokenNumber The PCD token number to monitor.\r
801 @param[in] NotificationFunction The function to call when the token \r
802 specified by Guid and TokenNumber is set.\r
803\r
804 @retval VOID\r
805\r
806**/\r
807VOID\r
808EFIAPI\r
809LibPcdCallbackOnSet (\r
810 IN CONST GUID *Guid, OPTIONAL\r
8a43e8dd 811 IN UINTN TokenNumber,\r
878ddf1f 812 IN PCD_CALLBACK NotificationFunction\r
813 )\r
814{\r
815 EFI_STATUS Status;\r
816\r
817 ASSERT (NotificationFunction != NULL);\r
818\r
819 Status = mPcd->CallbackOnSet (TokenNumber, Guid, NotificationFunction);\r
820\r
821 ASSERT_EFI_ERROR (Status);\r
822\r
823 return;\r
824}\r
825\r
826\r
827\r
828/**\r
829 Disable a notification function that was established with LibPcdCallbackonSet().\r
830 If NotificationFunction is NULL, then ASSERT().\r
831\r
832 @param[in] Guid Specify the GUID token space.\r
833 @param[in] TokenNumber Specify the token number.\r
834 @param[in] NotificationFunction The callback function to be unregistered.\r
835\r
836 @retval VOID\r
837\r
838**/\r
839VOID\r
840EFIAPI\r
841LibPcdCancelCallback (\r
842 IN CONST GUID *Guid, OPTIONAL\r
8a43e8dd 843 IN UINTN TokenNumber,\r
878ddf1f 844 IN PCD_CALLBACK NotificationFunction\r
845 )\r
846{\r
847 EFI_STATUS Status;\r
848\r
849 ASSERT (NotificationFunction != NULL);\r
850 \r
851 Status = mPcd->CancelCallback (TokenNumber, Guid, NotificationFunction);\r
852\r
853 ASSERT_EFI_ERROR (Status);\r
854\r
855 return;\r
856}\r
857\r
858\r
859\r
860/**\r
861 Retrieves the next PCD token number from the token space specified by Guid. \r
862 If Guid is NULL, then the default token space is used. If TokenNumber is 0, \r
863 then the first token number is returned. Otherwise, the token number that \r
864 follows TokenNumber in the token space is returned. If TokenNumber is the last \r
865 token number in the token space, then 0 is returned. If TokenNumber is not 0 and \r
866 is not in the token space specified by Guid, then ASSERT().\r
867\r
868 @param[in] Pointer to a 128-bit unique value that designates which namespace \r
869 to set a value from. If NULL, then the default token space is used.\r
870 @param[in] The previous PCD token number. If 0, then retrieves the first PCD \r
871 token number.\r
872\r
8a43e8dd 873 @retval UINTN The next valid token number.\r
878ddf1f 874\r
875**/\r
8a43e8dd 876UINTN \r
878ddf1f 877EFIAPI\r
878LibPcdGetNextToken (\r
879 IN CONST GUID *Guid, OPTIONAL\r
8a43e8dd 880 IN UINTN TokenNumber\r
878ddf1f 881 )\r
882{\r
883 EFI_STATUS Status;\r
884\r
b16ef805 885 Status = mPcd->GetNextToken (Guid, &TokenNumber);\r
878ddf1f 886\r
887 ASSERT_EFI_ERROR (Status);\r
888\r
b16ef805 889 return TokenNumber;\r
878ddf1f 890}\r
891\r
4276d5da 892\r
893\r
894/**\r
895 Retrieves the next PCD token space from a token space specified by Guid.\r
896 Guid of NULL is reserved to mark the default local token namespace on the current\r
897 platform. If Guid is NULL, then the GUID of the first non-local token space of the \r
898 current platform is returned. If Guid is the last non-local token space, \r
899 then NULL is returned. \r
900\r
901 If Guid is not NULL and is not a valid token space in the current platform, then ASSERT().\r
902\r
903\r
904 \r
905 @param[in] Pointer to a 128-bit unique value that designates from which namespace \r
906 to start the search.\r
907\r
908 @retval CONST GUID * The next valid token namespace.\r
909\r
910**/\r
bb5545b6 911GUID * \r
4276d5da 912EFIAPI\r
913LibPcdGetNextTokenSpace (\r
914 IN CONST GUID *Guid\r
915 )\r
916{\r
917 EFI_STATUS Status;\r
918\r
919 Status = mPcd->GetNextTokenSpace (&Guid);\r
920\r
921 ASSERT_EFI_ERROR (Status);\r
922\r
bb5545b6 923 return (GUID *) Guid;\r
4276d5da 924}\r
925\r