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d1f95000 1/** @file\r
2 Platform Configuration Database (PCD) Protocol\r
3\r
4 Copyright (c) 2006, Intel Corporation \r
5 All rights reserved. This program and the accompanying materials \r
6 are licensed and made available under the terms and conditions of the BSD License \r
7 which accompanies this distribution. The full text of the license may be found at \r
8 http://opensource.org/licenses/bsd-license.php \r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
12\r
d1f95000 13**/\r
14\r
15#ifndef __PCD_H__\r
16#define __PCD_H__\r
17\r
18extern EFI_GUID gPcdProtocolGuid;\r
19\r
20#define PCD_PROTOCOL_GUID \\r
21 { 0x11b34006, 0xd85b, 0x4d0a, { 0xa2, 0x90, 0xd5, 0xa5, 0x71, 0x31, 0xe, 0xf7 } }\r
22\r
23#define PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)\r
24\r
25\r
26/**\r
27 Sets the SKU value for subsequent calls to set or get PCD token values.\r
28\r
29 SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values. \r
30 SetSku() is normally called only once by the system.\r
31\r
32 For each item (token), the database can hold a single value that applies to all SKUs, \r
33 or multiple values, where each value is associated with a specific SKU Id. Items with multiple, \r
34 SKU-specific values are called SKU enabled. \r
35 \r
36 The SKU Id of zero is reserved as a default. The valid SkuId range is 1 to 255. \r
37 For tokens that are not SKU enabled, the system ignores any set SKU Id and works with the \r
38 single value for that token. For SKU-enabled tokens, the system will use the SKU Id set by the \r
39 last call to SetSku(). If no SKU Id is set or the currently set SKU Id isn't valid for the specified token, \r
40 the system uses the default SKU Id. If the system attempts to use the default SKU Id and no value has been \r
41 set for that Id, the results are unpredictable.\r
42\r
43 @param[in] SkuId The SKU value that will be used when the PCD service will retrieve and \r
44 set values associated with a PCD token.\r
45\r
46 @retval VOID\r
47\r
48**/\r
49typedef \r
50VOID\r
51(EFIAPI *PCD_PROTOCOL_SET_SKU) (\r
52 IN UINTN SkuId\r
53 );\r
54\r
55\r
56\r
57/**\r
58 Retrieves an 8-bit value for a given PCD token.\r
59\r
60 Retrieves the current byte-sized value for a PCD token number. \r
61 If the TokenNumber is invalid, the results are unpredictable.\r
62 \r
63 @param[in] TokenNumber The PCD token number. \r
64\r
65 @return The UINT8 value.\r
66 \r
67**/\r
68typedef\r
69UINT8\r
70(EFIAPI *PCD_PROTOCOL_GET8) (\r
71 IN UINTN TokenNumber\r
72 );\r
73\r
74\r
75\r
76/**\r
77 Retrieves an 16-bit value for a given PCD token.\r
78\r
79 Retrieves the current 16-bits value for a PCD token number. \r
80 If the TokenNumber is invalid, the results are unpredictable.\r
81 \r
82 @param[in] TokenNumber The PCD token number. \r
83\r
84 @return The UINT16 value.\r
85 \r
86**/\r
87typedef\r
88UINT16\r
89(EFIAPI *PCD_PROTOCOL_GET16) (\r
90 IN UINTN TokenNumber\r
91 );\r
92\r
93\r
94\r
95/**\r
96 Retrieves an 32-bit value for a given PCD token.\r
97\r
98 Retrieves the current 32-bits value for a PCD token number. \r
99 If the TokenNumber is invalid, the results are unpredictable.\r
100 \r
101 @param[in] TokenNumber The PCD token number. \r
102\r
103 @return The UINT32 value.\r
104 \r
105**/\r
106typedef\r
107UINT32\r
108(EFIAPI *PCD_PROTOCOL_GET32) (\r
109 IN UINTN TokenNumber\r
110 );\r
111\r
112\r
113\r
114/**\r
115 Retrieves an 64-bit value for a given PCD token.\r
116\r
117 Retrieves the current 64-bits value for a PCD token number. \r
118 If the TokenNumber is invalid, the results are unpredictable.\r
119 \r
120 @param[in] TokenNumber The PCD token number. \r
121\r
122 @return The UINT64 value.\r
123 \r
124**/\r
125typedef\r
126UINT64\r
127(EFIAPI *PCD_PROTOCOL_GET64) (\r
128 IN UINTN TokenNumber\r
129 );\r
130\r
131\r
132\r
133/**\r
134 Retrieves a pointer to a value for a given PCD token.\r
135\r
136 Retrieves the current pointer to the buffer for a PCD token number. \r
137 Do not make any assumptions about the alignment of the pointer that \r
138 is returned by this function call. If the TokenNumber is invalid, \r
139 the results are unpredictable.\r
140\r
141 @param[in] TokenNumber The PCD token number. \r
142\r
143 @return The pointer to the buffer to be retrived.\r
144 \r
145**/\r
146typedef\r
147VOID *\r
148(EFIAPI *PCD_PROTOCOL_GET_POINTER) (\r
149 IN UINTN TokenNumber\r
150 );\r
151\r
152\r
153\r
154/**\r
155 Retrieves a Boolean value for a given PCD token.\r
156\r
157 Retrieves the current boolean value for a PCD token number. \r
158 Do not make any assumptions about the alignment of the pointer that \r
159 is returned by this function call. If the TokenNumber is invalid, \r
160 the results are unpredictable.\r
161\r
162 @param[in] TokenNumber The PCD token number. \r
163\r
164 @return The Boolean value.\r
165 \r
166**/\r
167typedef\r
168BOOLEAN\r
169(EFIAPI *PCD_PROTOCOL_GET_BOOLEAN) (\r
170 IN UINTN TokenNumber\r
171 );\r
172\r
173\r
174\r
175/**\r
176 Retrieves the size of the value for a given PCD token.\r
177\r
178 Retrieves the current size of a particular PCD token. \r
179 If the TokenNumber is invalid, the results are unpredictable.\r
180\r
181 @param[in] TokenNumber The PCD token number. \r
182\r
183 @return The size of the value for the PCD token.\r
184 \r
185**/\r
186typedef\r
187UINTN\r
188(EFIAPI *PCD_PROTOCOL_GET_SIZE) (\r
189 IN UINTN TokenNumber\r
190 );\r
191\r
192\r
193\r
194/**\r
195 Retrieves an 8-bit value for a given PCD token.\r
196\r
197 Retrieves the 8-bit value of a particular PCD token. \r
198 If the TokenNumber is invalid or the token space\r
199 specified by Guid does not exist, the results are \r
200 unpredictable.\r
201\r
202 @param[in] Guid The token space for the token number.\r
203 @param[in] TokenNumber The PCD token number. \r
204\r
205 @return The size 8-bit value for the PCD token.\r
206 \r
207**/\r
208typedef\r
209UINT8\r
210(EFIAPI *PCD_PROTOCOL_GET_EX_8) (\r
211 IN CONST EFI_GUID *Guid,\r
212 IN UINTN TokenNumber\r
213 );\r
214\r
215\r
216\r
217/**\r
218 Retrieves an 16-bit value for a given PCD token.\r
219\r
220 Retrieves the 16-bit value of a particular PCD token. \r
221 If the TokenNumber is invalid or the token space\r
222 specified by Guid does not exist, the results are \r
223 unpredictable.\r
224\r
225 @param[in] Guid The token space for the token number.\r
226 @param[in] TokenNumber The PCD token number. \r
227\r
228 @return The size 16-bit value for the PCD token.\r
229 \r
230**/\r
231typedef\r
232UINT16\r
233(EFIAPI *PCD_PROTOCOL_GET_EX_16) (\r
234 IN CONST EFI_GUID *Guid,\r
235 IN UINTN TokenNumber\r
236 );\r
237\r
238\r
239\r
240/**\r
241 Retrieves an 32-bit value for a given PCD token.\r
242\r
243 Retrieves the 32-bit value of a particular PCD token. \r
244 If the TokenNumber is invalid or the token space\r
245 specified by Guid does not exist, the results are \r
246 unpredictable.\r
247\r
248 @param[in] Guid The token space for the token number.\r
249 @param[in] TokenNumber The PCD token number. \r
250\r
251 @return The size 32-bit value for the PCD token.\r
252 \r
253**/typedef\r
254UINT32\r
255(EFIAPI *PCD_PROTOCOL_GET_EX_32) (\r
256 IN CONST EFI_GUID *Guid,\r
257 IN UINTN TokenNumber\r
258 );\r
259\r
260\r
261\r
262/**\r
263 Retrieves an 64-bit value for a given PCD token.\r
264\r
265 Retrieves the 64-bit value of a particular PCD token. \r
266 If the TokenNumber is invalid or the token space\r
267 specified by Guid does not exist, the results are \r
268 unpredictable.\r
269\r
270 @param[in] Guid The token space for the token number.\r
271 @param[in] TokenNumber The PCD token number. \r
272\r
273 @return The size 64-bit value for the PCD token.\r
274 \r
275**/\r
276typedef\r
277UINT64\r
278(EFIAPI *PCD_PROTOCOL_GET_EX_64) (\r
279 IN CONST EFI_GUID *Guid,\r
280 IN UINTN TokenNumber\r
281 );\r
282\r
283\r
284\r
285/**\r
286 Retrieves a pointer to a value for a given PCD token.\r
287\r
288 Retrieves the current pointer to the buffer for a PCD token number. \r
289 Do not make any assumptions about the alignment of the pointer that \r
290 is returned by this function call. If the TokenNumber is invalid, \r
291 the results are unpredictable.\r
292\r
293 @param[in] Guid The token space for the token number.\r
294 @param[in] TokenNumber The PCD token number. \r
295\r
296 @return The pointer to the buffer to be retrived.\r
297 \r
298**/\r
299typedef\r
300VOID *\r
301(EFIAPI *PCD_PROTOCOL_GET_EX_POINTER) (\r
302 IN CONST EFI_GUID *Guid,\r
303 IN UINTN TokenNumber\r
304 );\r
305\r
306\r
307\r
308/**\r
309 Retrieves an Boolean value for a given PCD token.\r
310\r
311 Retrieves the Boolean value of a particular PCD token. \r
312 If the TokenNumber is invalid or the token space\r
313 specified by Guid does not exist, the results are \r
314 unpredictable.\r
315\r
316 @param[in] Guid The token space for the token number.\r
317 @param[in] TokenNumber The PCD token number. \r
318\r
319 @return The size Boolean value for the PCD token.\r
320 \r
321**/\r
322typedef\r
323BOOLEAN\r
324(EFIAPI *PCD_PROTOCOL_GET_EX_BOOLEAN) (\r
325 IN CONST EFI_GUID *Guid,\r
326 IN UINTN TokenNumber\r
327 );\r
328\r
329\r
330\r
331/**\r
332 Retrieves the size of the value for a given PCD token.\r
333\r
334 Retrieves the current size of a particular PCD token. \r
335 If the TokenNumber is invalid, the results are unpredictable.\r
336\r
337 @param[in] Guid The token space for the token number.\r
338 @param[in] TokenNumber The PCD token number. \r
339\r
340 @return The size of the value for the PCD token.\r
341 \r
342**/\r
343typedef\r
344UINTN\r
345(EFIAPI *PCD_PROTOCOL_GET_EX_SIZE) (\r
346 IN CONST EFI_GUID *Guid,\r
347 IN UINTN TokenNumber\r
348 );\r
349\r
350\r
351\r
352/**\r
353 Sets an 8-bit value for a given PCD token.\r
354\r
355 When the PCD service sets a value, it will check to ensure that the \r
356 size of the value being set is compatible with the Token's existing definition. \r
357 If it is not, an error will be returned.\r
358\r
359 @param[in] TokenNumber The PCD token number. \r
360 @param[in] Value The value to set for the PCD token.\r
361\r
362 @retval EFI_SUCCESS Procedure returned successfully.\r
363 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
364 being set was incompatible with a call to this function. \r
365 Use GetSize() to retrieve the size of the target data.\r
366 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
367 \r
368**/\r
369typedef\r
370EFI_STATUS\r
371(EFIAPI *PCD_PROTOCOL_SET8) (\r
372 IN UINTN TokenNumber,\r
373 IN UINT8 Value\r
374 );\r
375\r
376\r
377\r
378/**\r
379 Sets an 16-bit value for a given PCD token.\r
380\r
381 When the PCD service sets a value, it will check to ensure that the \r
382 size of the value being set is compatible with the Token's existing definition. \r
383 If it is not, an error will be returned.\r
384\r
385 @param[in] TokenNumber The PCD token number. \r
386 @param[in] Value The value to set for the PCD token.\r
387\r
388 @retval EFI_SUCCESS Procedure returned successfully.\r
389 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
390 being set was incompatible with a call to this function. \r
391 Use GetSize() to retrieve the size of the target data.\r
392 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
393 \r
394**/\r
395typedef\r
396EFI_STATUS\r
397(EFIAPI *PCD_PROTOCOL_SET16) (\r
398 IN UINTN TokenNumber,\r
399 IN UINT16 Value\r
400 );\r
401\r
402\r
403\r
404/**\r
405 Sets an 32-bit value for a given PCD token.\r
406\r
407 When the PCD service sets a value, it will check to ensure that the \r
408 size of the value being set is compatible with the Token's existing definition. \r
409 If it is not, an error will be returned.\r
410\r
411 @param[in] TokenNumber The PCD token number. \r
412 @param[in] Value The value to set for the PCD token.\r
413\r
414 @retval EFI_SUCCESS Procedure returned successfully.\r
415 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
416 being set was incompatible with a call to this function. \r
417 Use GetSize() to retrieve the size of the target data.\r
418 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
419 \r
420**/\r
421typedef\r
422EFI_STATUS\r
423(EFIAPI *PCD_PROTOCOL_SET32) (\r
424 IN UINTN TokenNumber,\r
425 IN UINT32 Value\r
426 );\r
427\r
428\r
429\r
430/**\r
431 Sets an 64-bit value for a given PCD token.\r
432\r
433 When the PCD service sets a value, it will check to ensure that the \r
434 size of the value being set is compatible with the Token's existing definition. \r
435 If it is not, an error will be returned.\r
436\r
437 @param[in] TokenNumber The PCD token number. \r
438 @param[in] Value The value to set for the PCD token.\r
439\r
440 @retval EFI_SUCCESS Procedure returned successfully.\r
441 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
442 being set was incompatible with a call to this function. \r
443 Use GetSize() to retrieve the size of the target data.\r
444 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
445 \r
446**/\r
447typedef\r
448EFI_STATUS\r
449(EFIAPI *PCD_PROTOCOL_SET64) (\r
450 IN UINTN TokenNumber,\r
451 IN UINT64 Value\r
452 );\r
453\r
454\r
455\r
456/**\r
457 Sets a value of a specified size for a given PCD token.\r
458\r
459 When the PCD service sets a value, it will check to ensure that the \r
460 size of the value being set is compatible with the Token's existing definition. \r
461 If it is not, an error will be returned.\r
462\r
463 @param[in] TokenNumber The PCD token number. \r
464 @param[in, out] SizeOfBuffer A pointer to the length of the value being set for the PCD token. \r
465 On input, if the SizeOfValue is greater than the maximum size supported \r
466 for this TokenNumber then the output value of SizeOfValue will reflect \r
467 the maximum size supported for this TokenNumber.\r
468 @param[in] Buffer The buffer to set for the PCD token.\r
469\r
470 @retval EFI_SUCCESS Procedure returned successfully.\r
471 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
472 being set was incompatible with a call to this function. \r
473 Use GetSize() to retrieve the size of the target data.\r
474 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
475 \r
476**/\r
477typedef\r
478EFI_STATUS\r
479(EFIAPI *PCD_PROTOCOL_SET_POINTER) (\r
480 IN UINTN TokenNumber,\r
481 IN OUT UINTN *SizeOfBuffer,\r
482 IN VOID *Buffer\r
483 );\r
484\r
485\r
486\r
487/**\r
488 Sets an Boolean value for a given PCD token.\r
489\r
490 When the PCD service sets a value, it will check to ensure that the \r
491 size of the value being set is compatible with the Token's existing definition. \r
492 If it is not, an error will be returned.\r
493\r
494 @param[in] TokenNumber The PCD token number. \r
495 @param[in] Value The value to set for the PCD token.\r
496\r
497 @retval EFI_SUCCESS Procedure returned successfully.\r
498 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
499 being set was incompatible with a call to this function. \r
500 Use GetSize() to retrieve the size of the target data.\r
501 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
502 \r
503**/\r
504typedef\r
505EFI_STATUS\r
506(EFIAPI *PCD_PROTOCOL_SET_BOOLEAN) (\r
507 IN UINTN TokenNumber,\r
508 IN BOOLEAN Value\r
509 );\r
510\r
511\r
512\r
513/**\r
514 Sets an 8-bit value for a given PCD token.\r
515\r
516 When the PCD service sets a value, it will check to ensure that the \r
517 size of the value being set is compatible with the Token's existing definition. \r
518 If it is not, an error will be returned.\r
519\r
520 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
521 @param[in] TokenNumber The PCD token number. \r
522 @param[in] Value The value to set for the PCD token.\r
523\r
524 @retval EFI_SUCCESS Procedure returned successfully.\r
525 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
526 being set was incompatible with a call to this function. \r
527 Use GetSize() to retrieve the size of the target data.\r
528 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
529 \r
530**/\r
531typedef\r
532EFI_STATUS\r
533(EFIAPI *PCD_PROTOCOL_SET_EX_8) (\r
534 IN CONST EFI_GUID *Guid,\r
535 IN UINTN TokenNumber,\r
536 IN UINT8 Value\r
537 );\r
538\r
539\r
540\r
541/**\r
542 Sets an 16-bit value for a given PCD token.\r
543\r
544 When the PCD service sets a value, it will check to ensure that the \r
545 size of the value being set is compatible with the Token's existing definition. \r
546 If it is not, an error will be returned.\r
547\r
548 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
549 @param[in] TokenNumber The PCD token number. \r
550 @param[in] Value The value to set for the PCD token.\r
551\r
552 @retval EFI_SUCCESS Procedure returned successfully.\r
553 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
554 being set was incompatible with a call to this function. \r
555 Use GetSize() to retrieve the size of the target data.\r
556 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
557 \r
558**/\r
559typedef\r
560EFI_STATUS\r
561(EFIAPI *PCD_PROTOCOL_SET_EX_16) (\r
562 IN CONST EFI_GUID *Guid,\r
563 IN UINTN TokenNumber,\r
564 IN UINT16 Value\r
565 );\r
566\r
567\r
568\r
569/**\r
570 Sets an 32-bit value for a given PCD token.\r
571\r
572 When the PCD service sets a value, it will check to ensure that the \r
573 size of the value being set is compatible with the Token's existing definition. \r
574 If it is not, an error will be returned.\r
575\r
576 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
577 @param[in] TokenNumber The PCD token number. \r
578 @param[in] Value The value to set for the PCD token.\r
579\r
580 @retval EFI_SUCCESS Procedure returned successfully.\r
581 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
582 being set was incompatible with a call to this function. \r
583 Use GetSize() to retrieve the size of the target data.\r
584 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
585 \r
586**/\r
587typedef\r
588EFI_STATUS\r
589(EFIAPI *PCD_PROTOCOL_SET_EX_32) (\r
590 IN CONST EFI_GUID *Guid,\r
591 IN UINTN TokenNumber,\r
592 IN UINT32 Value\r
593 );\r
594\r
595\r
596\r
597/**\r
598 Sets an 64-bit value for a given PCD token.\r
599\r
600 When the PCD service sets a value, it will check to ensure that the \r
601 size of the value being set is compatible with the Token's existing definition. \r
602 If it is not, an error will be returned.\r
603\r
604 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
605 @param[in] TokenNumber The PCD token number. \r
606 @param[in] Value The value to set for the PCD token.\r
607\r
608 @retval EFI_SUCCESS Procedure returned successfully.\r
609 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
610 being set was incompatible with a call to this function. \r
611 Use GetSize() to retrieve the size of the target data.\r
612 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
613 \r
614**/\r
615typedef\r
616EFI_STATUS\r
617(EFIAPI *PCD_PROTOCOL_SET_EX_64) (\r
618 IN CONST EFI_GUID *Guid,\r
619 IN UINTN TokenNumber,\r
620 IN UINT64 Value\r
621 );\r
622\r
623\r
624\r
625/**\r
626 Sets a value of a specified size for a given PCD token.\r
627\r
628 When the PCD service sets a value, it will check to ensure that the \r
629 size of the value being set is compatible with the Token's existing definition. \r
630 If it is not, an error will be returned.\r
631\r
632 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
633 @param[in] TokenNumber The PCD token number. \r
634 @param[in, out] SizeOfBuffer A pointer to the length of the value being set for the PCD token. \r
635 On input, if the SizeOfValue is greater than the maximum size supported \r
636 for this TokenNumber then the output value of SizeOfValue will reflect \r
637 the maximum size supported for this TokenNumber.\r
638 @param[in] Buffer The buffer to set for the PCD token.\r
639\r
640 @retval EFI_SUCCESS Procedure returned successfully.\r
641 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
642 being set was incompatible with a call to this function. \r
643 Use GetSize() to retrieve the size of the target data.\r
644 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
645 \r
646**/\r
647typedef\r
648EFI_STATUS\r
649(EFIAPI *PCD_PROTOCOL_SET_EX_POINTER) (\r
650 IN CONST EFI_GUID *Guid,\r
651 IN UINTN TokenNumber,\r
652 IN OUT UINTN *SizeOfBuffer,\r
653 IN VOID *Buffer\r
654 );\r
655\r
656\r
657\r
658/**\r
659 Sets an Boolean value for a given PCD token.\r
660\r
661 When the PCD service sets a value, it will check to ensure that the \r
662 size of the value being set is compatible with the Token's existing definition. \r
663 If it is not, an error will be returned.\r
664\r
665 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
666 @param[in] TokenNumber The PCD token number. \r
667 @param[in] Value The value to set for the PCD token.\r
668\r
669 @retval EFI_SUCCESS Procedure returned successfully.\r
670 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
671 being set was incompatible with a call to this function. \r
672 Use GetSize() to retrieve the size of the target data.\r
673 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
674 \r
675**/\r
676typedef\r
677EFI_STATUS\r
678(EFIAPI *PCD_PROTOCOL_SET_EX_BOOLEAN) (\r
679 IN CONST EFI_GUID *Guid,\r
680 IN UINTN TokenNumber,\r
681 IN BOOLEAN Value\r
682 );\r
683 \r
684\r
685\r
686/**\r
687 Callback on SET function prototype definition.\r
688\r
689 This notification function serves two purposes. \r
690 Firstly, it notifies the module which did the registration that the value \r
691 of this PCD token has been set. Secondly, it provides a mechanism for the \r
692 module which did the registration to intercept the set operation and override \r
693 the value been set if necessary. After the invocation of the callback function, \r
694 TokenData will be used by PCD service DXE driver to modify the internal data in \r
695 PCD database.\r
696\r
697 @param[in] CallBackGuid The PCD token GUID being set.\r
698 @param[in] CallBackToken The PCD token number being set.\r
699 @param[in, out] TokenData A pointer to the token data being set.\r
700 @param[in] TokenDataSize The size, in bytes, of the data being set.\r
701\r
702 @retval VOID\r
703\r
704**/\r
705typedef\r
706VOID\r
707(EFIAPI *PCD_PROTOCOL_CALLBACK) (\r
708 IN CONST EFI_GUID *CallBackGuid, OPTIONAL\r
709 IN UINTN CallBackToken,\r
710 IN OUT VOID *TokenData,\r
711 IN UINTN TokenDataSize\r
712 );\r
713\r
714\r
715\r
716/**\r
717 Specifies a function to be called anytime the value of a designated token is changed.\r
718\r
719 @param[in] TokenNumber The PCD token number. \r
720 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
721 @param[in] CallBackFunction The function prototype called when the value associated with the CallBackToken is set. \r
722\r
723 @retval EFI_SUCCESS The PCD service has successfully established a call event \r
724 for the CallBackToken requested.\r
725 @retval EFI_NOT_FOUND The PCD service could not find the referenced token number.\r
726\r
727**/\r
728typedef\r
729EFI_STATUS\r
730(EFIAPI *PCD_PROTOCOL_CALLBACK_ONSET) (\r
731 IN CONST EFI_GUID *Guid, OPTIONAL\r
732 IN UINTN TokenNumber,\r
733 IN PCD_PROTOCOL_CALLBACK CallBackFunction\r
734 );\r
735\r
736\r
737\r
738/**\r
739 Cancels a previously set callback function for a particular PCD token number.\r
740\r
741 @param[in] TokenNumber The PCD token number. \r
742 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
743 @param[in] CallBackFunction The function prototype called when the value associated with the CallBackToken is set. \r
744\r
745 @retval EFI_SUCCESS The PCD service has successfully established a call event \r
746 for the CallBackToken requested.\r
747 @retval EFI_NOT_FOUND The PCD service could not find the referenced token number.\r
748\r
749**/\r
750typedef\r
751EFI_STATUS\r
752(EFIAPI *PCD_PROTOCOL_CANCEL_CALLBACK) (\r
753 IN CONST EFI_GUID *Guid, OPTIONAL\r
754 IN UINTN TokenNumber,\r
755 IN PCD_PROTOCOL_CALLBACK CallBackFunction\r
756 );\r
757\r
758\r
759\r
760/**\r
761 Retrieves the next valid PCD token for a given namespace.\r
762\r
763 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
764 @param[in,out] TokenNumber A pointer to the PCD token number to use to find the subsequent token number. \r
765 If the input token namespace or token number does not exist on the platform, \r
766 an error is returned and the value of *TokenNumber is undefined. To retrieve the "first" token, \r
767 have the pointer reference a TokenNumber value of 0. If the input token number is 0 and \r
768 there is no valid token number for this token namespace, *TokenNumber will be assigned to \r
769 0 and the function return EFI_SUCCESS. If the token number is the last valid token number, \r
770 *TokenNumber will be assigned to 0 and the function return EFI_SUCCESS.\r
771\r
772 @retval EFI_SUCCESS The PCD service retrieved the next valid token number. Or the input token number \r
773 is already the last valid token number in the PCD database. \r
774 In the later case, *TokenNumber is updated with the value of 0.\r
775 @retval EFI_NOT_FOUND If this input token number and token namespace does not exist on the platform.\r
776\r
777**/\r
778typedef \r
779EFI_STATUS\r
780(EFIAPI *PCD_PROTOCOL_GET_NEXT_TOKEN) (\r
781 IN CONST EFI_GUID *Guid, OPTIONAL\r
782 IN OUT UINTN *TokenNumber\r
783 );\r
784\r
785\r
786\r
787/**\r
788 Retrieves the next valid PCD token namespace for a given namespace.\r
789\r
790 @param[in, out] Guid An indirect pointer to EFI_GUID. On input it designates \r
791 a known token namespace from which the search will start. On output, \r
792 it designates the next valid token namespace on the platform. If the input \r
793 token namespace does not exist on the platform, an error is returned and \r
794 the value of *Guid is undefined. If *Guid is NULL, then the GUID of the \r
795 first token space of the current platform is assigned to *Guid the function \r
796 return EFI_SUCCESS. If *Guid is NULL and there is no namespace exist in \r
797 the platform other than the default (NULL) tokennamespace, *Guid is unchanged \r
798 and the function return EFI_SUCCESS. If this input token namespace is the last \r
799 namespace on the platform, *Guid will be assigned to NULL and the function return \r
800 EFI_SUCCESS. \r
801\r
802 @retval EFI_SUCCESS The PCD service retrieved the next valid token space Guid. \r
803 Or the input token space Guid is already the last valid token space Guid \r
804 in the PCD database. In the later case, *Guid is updated with the value of NULL.\r
805 @retval EFI_NOT_FOUND If the input token namespace does not exist on the platform.\r
806\r
807**/\r
808typedef \r
809EFI_STATUS\r
810(EFIAPI *PCD_PROTOCOL_GET_NEXT_TOKENSPACE) (\r
811 IN OUT CONST EFI_GUID **Guid\r
812 );\r
813\r
814\r
815\r
816//\r
817// Interface structure for the PCD Protocol\r
818//\r
819typedef struct {\r
820 PCD_PROTOCOL_SET_SKU SetSku;\r
821\r
822 PCD_PROTOCOL_GET8 Get8;\r
823 PCD_PROTOCOL_GET16 Get16;\r
824 PCD_PROTOCOL_GET32 Get32;\r
825 PCD_PROTOCOL_GET64 Get64;\r
826 PCD_PROTOCOL_GET_POINTER GetPtr;\r
827 PCD_PROTOCOL_GET_BOOLEAN GetBool;\r
828 PCD_PROTOCOL_GET_SIZE GetSize;\r
829\r
830 PCD_PROTOCOL_GET_EX_8 Get8Ex;\r
831 PCD_PROTOCOL_GET_EX_16 Get16Ex;\r
832 PCD_PROTOCOL_GET_EX_32 Get32Ex;\r
833 PCD_PROTOCOL_GET_EX_64 Get64Ex;\r
834 PCD_PROTOCOL_GET_EX_POINTER GetPtrEx;\r
835 PCD_PROTOCOL_GET_EX_BOOLEAN GetBoolEx;\r
836 PCD_PROTOCOL_GET_EX_SIZE GetSizeEx;\r
837\r
838 PCD_PROTOCOL_SET8 Set8;\r
839 PCD_PROTOCOL_SET16 Set16;\r
840 PCD_PROTOCOL_SET32 Set32;\r
841 PCD_PROTOCOL_SET64 Set64;\r
842 PCD_PROTOCOL_SET_POINTER SetPtr;\r
843 PCD_PROTOCOL_SET_BOOLEAN SetBool;\r
844\r
845 PCD_PROTOCOL_SET_EX_8 Set8Ex;\r
846 PCD_PROTOCOL_SET_EX_16 Set16Ex;\r
847 PCD_PROTOCOL_SET_EX_32 Set32Ex;\r
848 PCD_PROTOCOL_SET_EX_64 Set64Ex;\r
849 PCD_PROTOCOL_SET_EX_POINTER SetPtrEx;\r
850 PCD_PROTOCOL_SET_EX_BOOLEAN SetBoolEx;\r
851\r
852 PCD_PROTOCOL_CALLBACK_ONSET CallbackOnSet;\r
853 PCD_PROTOCOL_CANCEL_CALLBACK CancelCallback;\r
854 PCD_PROTOCOL_GET_NEXT_TOKEN GetNextToken;\r
855 PCD_PROTOCOL_GET_NEXT_TOKENSPACE GetNextTokenSpace;\r
856} PCD_PROTOCOL;\r
857\r
858#endif\r