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fb3df220 1/** @file\r
50a64e5b 2 Provides library services to get and set Platform Configuration Database entries.\r
3\r
4 PCD Library Class provides PCD usage macro interface for all PCD types.\r
5 It should be included at any module who use PCD. If module use dynamic/dynamicex\r
6 PCD, module should be linked to PEIM/DXE library instance to access that PCD.\r
7 If module uses PatchableInModule type PCD, also need library instance produce\r
8 LibPatchPcdSetPtr() interface. For FeatureFlag/Fixed PCD, macro interface is\r
9 translated to an variable or macro which is auto-generated by build tool in\r
10 module's autogen.h/autogen.c.\r
64735d24 11 The PcdGetXX(), PcdSetXX(), PcdToken(), and PcdGetNextTokenSpace() operations are \r
12 only available prior to ExitBootServices(). If access to PCD values are required \r
13 at runtime, then their values must be collected prior to ExitBootServices().\r
14 There are no restrictions on the use of FeaturePcd(), FixedPcdGetXX(),\r
15 PatchPcdGetXX(), and PatchPcdSetXX().\r
50a64e5b 16\r
17Copyright (c) 2006 - 2008, Intel Corporation\r
18All rights reserved. This program and the accompanying materials\r
19are licensed and made available under the terms and conditions of the BSD License\r
20which accompanies this distribution. The full text of the license may be found at\r
21http://opensource.org/licenses/bsd-license.php\r
22\r
23THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
24WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
fb3df220 25\r
fb3df220 26**/\r
27\r
28#ifndef __PCD_LIB_H__\r
29#define __PCD_LIB_H__\r
30\r
c3665990 31#define PCD_MAX_SKU_ID 0x100\r
fb3df220 32\r
64735d24 33\r
34/**\r
35 Retrieves a token number based on a token name.\r
36\r
37 Returns the token number associated with the PCD token specified by TokenName.\r
38 If TokenName is not a valid token in the token space, then the module will not build.\r
39 If TokenName is not a feature flag, then the module will not build.\r
40\r
41 @param TokenName The name of the PCD token to retrieve the token number for.\r
42\r
43 @return The token number associated with the PCD.\r
44\r
45**/\r
fb3df220 46#define PcdToken(TokenName) _PCD_TOKEN_##TokenName\r
47\r
48\r
64735d24 49/**\r
50 Retrieves a Boolean PCD feature flag based on a token name.\r
51\r
52 Returns the Boolean value for the PCD feature flag specified by TokenName.\r
53 If TokenName is not a valid token in the token space, then the module will not build.\r
54 If TokenName is not a feature flag, then the module will not build.\r
55\r
56 @param TokenName The name of the PCD token to retrieve a current value for.\r
57\r
58 @return Boolean value for the PCD feature flag.\r
59\r
60**/\r
fb3df220 61#define FeaturePcdGet(TokenName) _PCD_GET_MODE_BOOL_##TokenName\r
62\r
63\r
64735d24 64/**\r
65 Retrieves an 8-bit fixed PCD token value based on a token name.\r
66\r
67 Returns the 8-bit value for the token specified by TokenName.\r
68 If TokenName is not a valid token in the token space, then the module will not build.\r
69 If TokenName is not a feature flag, then the module will not build.\r
70\r
71 @param TokenName The name of the PCD token to retrieve a current value for.\r
72\r
73 @return 8-bit value for the token specified by TokenName.\r
74\r
75**/\r
fb3df220 76#define FixedPcdGet8(TokenName) _PCD_VALUE_##TokenName\r
64735d24 77\r
78\r
79/**\r
80 Retrieves a 16-bit fixed PCD token value based on a token name.\r
81\r
82 Returns the 16-bit value for the token specified by TokenName.\r
83 If TokenName is not a valid token in the token space, then the module will not build.\r
84 If TokenName is not a feature flag, then the module will not build.\r
85\r
86 @param TokenName The name of the PCD token to retrieve a current value for.\r
87\r
88 @return 16-bit value for the token specified by TokenName.\r
89\r
90**/\r
fb3df220 91#define FixedPcdGet16(TokenName) _PCD_VALUE_##TokenName\r
64735d24 92\r
93\r
94/**\r
95 Retrieves a 32-bit fixed PCD token value based on a token name.\r
96\r
97 Returns the 32-bit value for the token specified by TokenName.\r
98 If TokenName is not a valid token in the token space, then the module will not build.\r
99 If TokenName is not a feature flag, then the module will not build.\r
100\r
101 @param TokenName The name of the PCD token to retrieve a current value for.\r
102\r
103 @return 32-bit value for the token specified by TokenName.\r
104\r
105**/\r
fb3df220 106#define FixedPcdGet32(TokenName) _PCD_VALUE_##TokenName\r
64735d24 107\r
108\r
109/**\r
110 Retrieves a 64-bit fixed PCD token value based on a token name.\r
111\r
112 Returns the 64-bit value for the token specified by TokenName.\r
113 If TokenName is not a valid token in the token space, then the module will not build.\r
114 If TokenName is not a feature flag, then the module will not build.\r
115\r
116 @param TokenName The name of the PCD token to retrieve a current value for.\r
117\r
118 @return 64-bit value for the token specified by TokenName.\r
119\r
120**/\r
fb3df220 121#define FixedPcdGet64(TokenName) _PCD_VALUE_##TokenName\r
64735d24 122\r
123\r
124/**\r
125 Retrieves a Boolean fixed PCD token value based on a token name.\r
126\r
127 Returns the Boolean value for the token specified by TokenName.\r
128 If TokenName is not a valid token in the token space, then the module will not build.\r
129 If TokenName is not a feature flag, then the module will not build.\r
130\r
131 @param TokenName The name of the PCD token to retrieve a current value for.\r
132\r
133 @return The Boolean value for the token. \r
134\r
135**/\r
fb3df220 136#define FixedPcdGetBool(TokenName) _PCD_VALUE_##TokenName\r
137\r
138\r
64735d24 139/**\r
140 Retrieves a pointer to a fixed PCD token buffer based on a token name.\r
141\r
142 Returns a pointer to the buffer for the token specified by TokenName.\r
143 If TokenName is not a valid token in the token space, then the module will not build.\r
144 If TokenName is not a feature flag, then the module will not build.\r
145\r
146 @param TokenName The name of the PCD token to retrieve a current value for.\r
147\r
148 @return A pointer to the buffer. \r
149\r
150**/\r
fb3df220 151#define FixedPcdGetPtr(TokenName) ((VOID *)_PCD_VALUE_##TokenName)\r
152\r
153\r
64735d24 154/**\r
155 Retrieves an 8-bit binary patchable PCD token value based on a token name.\r
156\r
157 Returns the 8-bit value for the token specified by TokenName.\r
158 If TokenName is not a valid token in the token space, then the module will not build.\r
159 If TokenName is not a feature flag, then the module will not build.\r
160\r
161 @param TokenName The name of the PCD token to retrieve a current value for.\r
162\r
163 @return An 8-bit binary patchable PCD token value.\r
164\r
165**/\r
fb3df220 166#define PatchPcdGet8(TokenName) _gPcd_BinaryPatch_##TokenName\r
64735d24 167\r
168/**\r
169 Retrieves a 16-bit binary patchable PCD token value based on a token name.\r
170\r
171 Returns the 16-bit value for the token specified by TokenName.\r
172 If TokenName is not a valid token in the token space, then the module will not build.\r
173 If TokenName is not a feature flag, then the module will not build.\r
174\r
175 @param TokenName The name of the PCD token to retrieve a current value for.\r
176\r
177 @return A 16-bit binary patchable PCD token value.\r
178\r
179**/\r
fb3df220 180#define PatchPcdGet16(TokenName) _gPcd_BinaryPatch_##TokenName\r
64735d24 181\r
182\r
183/**\r
184 Retrieves a 32-bit binary patchable PCD token value based on a token name.\r
185\r
186 Returns the 32-bit value for the token specified by TokenName.\r
187 If TokenName is not a valid token in the token space, then the module will not build.\r
188 If TokenName is not a feature flag, then the module will not build.\r
189\r
190 @param TokenName The name of the PCD token to retrieve a current value for.\r
191\r
192 @return A 32-bit binary patchable PCD token value.\r
193\r
194**/\r
fb3df220 195#define PatchPcdGet32(TokenName) _gPcd_BinaryPatch_##TokenName\r
64735d24 196\r
197\r
198/**\r
199 Retrieves a 64-bit binary patchable PCD token value based on a token name.\r
200\r
201 Returns the 64-bit value for the token specified by TokenName.\r
202 If TokenName is not a valid token in the token space, then the module will not build.\r
203 If TokenName is not a feature flag, then the module will not build.\r
204\r
205 @param TokenName The name of the PCD token to retrieve a current value for.\r
206\r
207 @return A 64-bit binary patchable PCD token value.\r
208\r
209**/\r
fb3df220 210#define PatchPcdGet64(TokenName) _gPcd_BinaryPatch_##TokenName\r
64735d24 211\r
212\r
213/**\r
214 Retrieves a Boolean binary patchable PCD token value based on a token name.\r
215\r
216 Returns the Boolean value for the token specified by TokenName.\r
217 If TokenName is not a valid token in the token space, then the module will not build.\r
218 If TokenName is not a feature flag, then the module will not build.\r
219\r
220 @param TokenName The name of the PCD token to retrieve a current value for.\r
221\r
222 @return The Boolean value for the token.\r
223\r
224**/\r
fb3df220 225#define PatchPcdGetBool(TokenName) _gPcd_BinaryPatch_##TokenName\r
64735d24 226\r
227\r
228/**\r
229 Retrieves a pointer to a binary patchable PCD token buffer based on a token name.\r
230\r
231 Returns a pointer to the buffer for the token specified by TokenName.\r
232 If TokenName is not a valid token in the token space, then the module will not build.\r
233 If TokenName is not a feature flag, then the module will not build.\r
234\r
235 @param TokenName The name of the PCD token to retrieve a current value for.\r
236\r
237 @return A pointer to the buffer for the token.\r
238\r
239**/\r
fb3df220 240#define PatchPcdGetPtr(TokenName) ((VOID *)_gPcd_BinaryPatch_##TokenName)\r
241\r
64735d24 242\r
243/**\r
244 Sets an 8-bit binary patchable PCD token value based on a token name.\r
245\r
246 Sets the 8-bit value for the token specified by TokenName. Value is returned.\r
247 If TokenName is not a valid token in the token space, then the module will not build.\r
248 If TokenName is not a feature flag, then the module will not build.\r
249\r
250 @param TokenName The name of the binary patchable PCD token to set the current value for.\r
251 @param Value The 8-bit value to set.\r
252 \r
253 @return Value.\r
254\r
255**/\r
fb3df220 256#define PatchPcdSet8(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))\r
64735d24 257\r
258\r
259/**\r
260 Sets a 16-bit binary patchable PCD token value based on a token name.\r
261\r
262 Sets the 16-bit value for the token specified by TokenName. Value is returned.\r
263 If TokenName is not a valid token in the token space, then the module will not build.\r
264 If TokenName is not a feature flag, then the module will not build.\r
265\r
266 @param TokenName The name of the binary patchable PCD token to set the current value for.\r
267 @param Value The 16-bit value to set.\r
268\r
269 @return Value.\r
270\r
271**/\r
fb3df220 272#define PatchPcdSet16(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))\r
64735d24 273\r
274\r
275/**\r
276 Sets a 32-bit binary patchable PCD token value based on a token name.\r
277\r
278 Sets the 32-bit value for the token specified by TokenName. Value is returned.\r
279 If TokenName is not a valid token in the token space, then the module will not build.\r
280 If TokenName is not a feature flag, then the module will not build.\r
281\r
282 @param TokenName The name of the binary patchable PCD token to set the current value for.\r
283 @param Value The 32-bit value to set.\r
284\r
285 @return Value.\r
286\r
287**/\r
fb3df220 288#define PatchPcdSet32(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))\r
64735d24 289\r
290\r
291/**\r
292 Sets a 64-bit binary patchable PCD token value based on a token name.\r
293\r
294 Sets the 64-bit value for the token specified by TokenName. Value is returned.\r
295 If TokenName is not a valid token in the token space, then the module will not build.\r
296 If TokenName is not a feature flag, then the module will not build.\r
297\r
298 @param TokenName The name of the binary patchable PCD token to set the current value for.\r
299 @param Value The 64-bit value to set.\r
300\r
301 @return Value.\r
302\r
303**/\r
fb3df220 304#define PatchPcdSet64(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))\r
64735d24 305\r
306\r
307/**\r
308 Sets a Boolean binary patchable PCD token value based on a token name.\r
309\r
310 Sets the Boolean value for the token specified by TokenName. Value is returned.\r
311 If TokenName is not a valid token in the token space, then the module will not build.\r
312 If TokenName is not a feature flag, then the module will not build.\r
313\r
314 @param TokenName The name of the binary patchable PCD token to set the current value for.\r
315 @param Value The boolean value to set.\r
316\r
317 @return Value.\r
318\r
319**/\r
fb3df220 320#define PatchPcdSetBool(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))\r
64735d24 321\r
322\r
323/**\r
324 Sets a pointer to a binary patchable PCD token buffer based on a token name.\r
325\r
326 Sets the buffer for the token specified by TokenName. Buffer is returned. \r
327 If SizeOfBuffer is greater than the maximum size supported by TokenName, then set SizeOfBuffer\r
328 to the maximum size supported by TokenName and return NULL to indicate that the set operation \r
329 was not actually performed. If SizeOfBuffer is set to MAX_ADDRESS, then SizeOfBuffer must be \r
330 set to the maximum size supported by TokenName and NULL must be returned.\r
331 If TokenName is not a valid token in the token space, then the module will not build.\r
332 If TokenName is not a feature flag, then the module will not build.\r
333 \r
334 If SizeOfBuffer is NULL, then ASSERT().\r
335 If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r
336 \r
337 @param TokenName The name of the binary patchable PCD token to set the current value for.\r
338 @param SizeOfBuffer A pointer to the size, in bytes, of Buffer.\r
339 @param Buffer Pointer to the value to set.\r
340\r
341 @return Value.\r
342\r
343**/\r
fb3df220 344#define PatchPcdSetPtr(TokenName, Size, Buffer) \\r
345 LibPatchPcdSetPtr ( \\r
346 _gPcd_BinaryPatch_##TokenName, \\r
347 (UINTN)_PCD_PATCHABLE_##TokenName##_SIZE, \\r
348 (Size), \\r
349 (Buffer) \\r
350 )\r
351\r
64735d24 352/**\r
353 Retrieves an 8-bit PCD token value based on a token name.\r
354 \r
355 Returns the 8-bit value for the token specified by TokenName.\r
356 If TokenName is not a valid token in the token space, then the module will not build.\r
357 \r
358 @param TokenName The name of the PCD token to retrieve a current value for.\r
359\r
360 @return 8-bit value for the token specified by TokenName.\r
361\r
362**/\r
fb3df220 363#define PcdGet8(TokenName) _PCD_GET_MODE_8_##TokenName\r
64735d24 364\r
365\r
366/**\r
367 Retrieves a 16-bit PCD token value based on a token name.\r
368\r
369 Returns the 16-bit value for the token specified by TokenName.\r
370 If TokenName is not a valid token in the token space, then the module will not build.\r
371\r
372 @param TokenName The name of the PCD token to retrieve a current value for.\r
373\r
374 @return 16-bit value for the token specified by TokenName.\r
375\r
376**/\r
fb3df220 377#define PcdGet16(TokenName) _PCD_GET_MODE_16_##TokenName\r
64735d24 378\r
379\r
380/**\r
381 Retrieves a 32-bit PCD token value based on a token name.\r
382\r
383 Returns the 32-bit value for the token specified by TokenName.\r
384 If TokenName is not a valid token in the token space, then the module will not build.\r
385\r
386 @param TokenName The name of the PCD token to retrieve a current value for.\r
387\r
388 @return 32-bit value for the token specified by TokenName.\r
389\r
390**/\r
fb3df220 391#define PcdGet32(TokenName) _PCD_GET_MODE_32_##TokenName\r
64735d24 392\r
393\r
394/**\r
395 Retrieves a 64-bit PCD token value based on a token name.\r
396\r
397 Returns the 64-bit value for the token specified by TokenName.\r
398 If TokenName is not a valid token in the token space, then the module will not build.\r
399\r
400 @param TokenName The name of the PCD token to retrieve a current value for.\r
401\r
402 @return 64-bit value for the token specified by TokenName.\r
403\r
404**/\r
fb3df220 405#define PcdGet64(TokenName) _PCD_GET_MODE_64_##TokenName\r
64735d24 406\r
407\r
408/**\r
409 Retrieves a pointer to a PCD token buffer based on a token name.\r
410\r
411 Returns a pointer to the buffer for the token specified by TokenName.\r
412 If TokenName is not a valid token in the token space, then the module will not build.\r
413\r
414 @param TokenName The name of the PCD token to retrieve a current value for.\r
415\r
416 @return A pointer to the buffer.\r
417\r
418**/\r
fb3df220 419#define PcdGetPtr(TokenName) _PCD_GET_MODE_PTR_##TokenName\r
64735d24 420\r
421\r
422/**\r
423 Retrieves a Boolean PCD token value based on a token name.\r
424\r
425 Returns the Boolean value for the token specified by TokenName.\r
426 If TokenName is not a valid token in the token space, then the module will not build.\r
427\r
428 @param TokenName The name of the PCD token to retrieve a current value for.\r
429\r
430 @return A Boolean PCD token value.\r
431\r
432**/\r
fb3df220 433#define PcdGetBool(TokenName) _PCD_GET_MODE_BOOL_##TokenName\r
434\r
64735d24 435\r
436/**\r
437 Sets an 8-bit PCD token value based on a token name.\r
438\r
439 Sets the 8-bit value for the token specified by TokenName. Value is returned.\r
440 If TokenName is not a valid token in the token space, then the module will not build.\r
441\r
442 @param TokenName The name of the PCD token to retrieve a current value for.\r
443 @param Value The 8-bit value to set.\r
444 \r
445 @return Value.\r
446\r
447**/\r
fb3df220 448#define PcdSet8(TokenName, Value) _PCD_SET_MODE_8_##TokenName ((Value))\r
64735d24 449\r
450\r
451/**\r
452 Sets a 16-bit PCD token value based on a token name.\r
453\r
454 Sets the 16-bit value for the token specified by TokenName. Value is returned.\r
455 If TokenName is not a valid token in the token space, then the module will not build.\r
456\r
457 @param TokenName The name of the PCD token to retrieve a current value for.\r
458 @param Value The 16-bit value to set.\r
459\r
460 @return Value.\r
461\r
462**/\r
fb3df220 463#define PcdSet16(TokenName, Value) _PCD_SET_MODE_16_##TokenName ((Value))\r
64735d24 464\r
465\r
466/**\r
467 Sets a 32-bit PCD token value based on a token name.\r
468\r
469 Sets the 32-bit value for the token specified by TokenName. Value is returned.\r
470 If TokenName is not a valid token in the token space, then the module will not build.\r
471\r
472 @param TokenName The name of the PCD token to retrieve a current value for.\r
473 @param Value The 32-bit value to set.\r
474\r
475 @return Value.\r
476\r
477**/\r
fb3df220 478#define PcdSet32(TokenName, Value) _PCD_SET_MODE_32_##TokenName ((Value))\r
64735d24 479\r
480\r
481/**\r
482 Sets a 64-bit PCD token value based on a token name.\r
483\r
484 Sets the 64-bit value for the token specified by TokenName. Value is returned.\r
485 If TokenName is not a valid token in the token space, then the module will not build.\r
486\r
487 @param TokenName The name of the PCD token to retrieve a current value for.\r
488 @param Value The 64-bit value to set.\r
489\r
490 @return Value.\r
491\r
492**/\r
fb3df220 493#define PcdSet64(TokenName, Value) _PCD_SET_MODE_64_##TokenName ((Value))\r
64735d24 494\r
495\r
496/**\r
497 Sets a pointer to a PCD token buffer based on a token name.\r
498\r
499 Sets the buffer for the token specified by TokenName. Buffer is returned. \r
500 If SizeOfBuffer is greater than the maximum size supported by TokenName, \r
501 then set SizeOfBuffer to the maximum size supported by TokenName and return NULL \r
502 to indicate that the set operation was not actually performed. If SizeOfBuffer \r
503 is set to MAX_ADDRESS, then SizeOfBuffer must be set to the maximum size supported \r
504 by TokenName and NULL must be returned.\r
505 If TokenName is not a valid token in the token space, then the module will not build.\r
506 \r
507 If SizeOfBuffer is NULL, then ASSERT().\r
508 If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r
509 \r
510 @param TokenName The name of the PCD token to set the current value for.\r
511 @param SizeOfBuffer A pointer to the size, in bytes, of Buffer.\r
512 @param Buffer A pointer to the buffer to set.\r
513\r
514 @return Buffer.\r
515\r
516**/\r
fb3df220 517#define PcdSetPtr(TokenName, SizeOfBuffer, Buffer) \\r
518 _PCD_SET_MODE_PTR_##TokenName ((SizeOfBuffer), (Buffer))\r
64735d24 519 \r
520/**\r
521 Sets a Boolean PCD token value based on a token name.\r
522\r
523 Sets the Boolean value for the token specified by TokenName. Value is returned. \r
524 If TokenName is not a valid token in the token space, then the module will not build.\r
525\r
526 @param TokenName The name of the PCD token to set the current value for.\r
527 @param Buffer The Boolean value to set.\r
528\r
529 @return Value. \r
530\r
531**/\r
fb3df220 532#define PcdSetBool(TokenName, Value) _PCD_SET_MODE_BOOL_##TokenName ((Value))\r
533\r
64735d24 534\r
535/**\r
536 Retrieves an 8-bit PCD token value based on a GUID and a token name.\r
537\r
538 Returns the 8-bit value for the token specified by Guid and TokenName.\r
539 If TokenName is not a valid token in the token space specified by Guid, \r
540 then the module will not build.\r
541 \r
542 If Guid is NULL, then ASSERT().\r
543\r
544 @param Guid Pointer to a 128-bit unique value that designates \r
545 which namespace to retrieve a value from.\r
546 @param TokenName The name of the PCD token to retrieve a current value for. \r
547\r
548 @return An 8-bit PCD token value.\r
549\r
550**/\r
fb3df220 551#define PcdGetEx8(Guid, TokenName) LibPcdGetEx8 ((Guid), _PCD_TOKEN_##TokenName)\r
64735d24 552\r
553\r
554/**\r
555 Retrieves a 16-bit PCD token value based on a GUID and a token name.\r
556\r
557 Returns the 16-bit value for the token specified by Guid and TokenName.\r
558 If TokenName is not a valid token in the token space specified by Guid, \r
559 then the module will not build.\r
560\r
561 If Guid is NULL, then ASSERT().\r
562\r
563 @param Guid Pointer to a 128-bit unique value that designates \r
564 which namespace to retrieve a value from.\r
565 @param TokenName The name of the PCD token to retrieve a current value for. \r
566\r
567 @return A 16-bit PCD token value.\r
568\r
569**/\r
fb3df220 570#define PcdGetEx16(Guid, TokenName) LibPcdGetEx16 ((Guid), _PCD_TOKEN_##TokenName)\r
64735d24 571\r
572\r
573/**\r
574 Retrieves a 32-bit PCD token value based on a GUID and a token name.\r
575\r
576 Returns the 32-bit value for the token specified by Guid and TokenName.\r
577 If TokenName is not a valid token in the token space specified by Guid, \r
578 then the module will not build.\r
579\r
580 If Guid is NULL, then ASSERT().\r
581\r
582 @param Guid Pointer to a 128-bit unique value that designates \r
583 which namespace to retrieve a value from.\r
584 @param TokenName The name of the PCD token to retrieve a current value for. \r
585\r
586 @return A 32-bit PCD token value.\r
587\r
588**/\r
fb3df220 589#define PcdGetEx32(Guid, TokenName) LibPcdGetEx32 ((Guid), _PCD_TOKEN_##TokenName)\r
64735d24 590\r
591\r
592/**\r
593 Retrieves a 64-bit PCD token value based on a GUID and a token name.\r
594\r
595 Returns the 64-bit value for the token specified by Guid and TokenName.\r
596 If TokenName is not a valid token in the token space specified by Guid, \r
597 then the module will not build.\r
598\r
599 If Guid is NULL, then ASSERT().\r
600\r
601 @param Guid Pointer to a 128-bit unique value that designates \r
602 which namespace to retrieve a value from.\r
603 @param TokenName The name of the PCD token to retrieve a current value for. \r
604\r
605 @return A 64-bit PCD token value.\r
606\r
607**/\r
fb3df220 608#define PcdGetEx64(Guid, TokenName) LibPcdGetEx64 ((Guid), _PCD_TOKEN_##TokenName)\r
64735d24 609\r
610\r
611/**\r
612 Retrieves a pointer to a PCD token buffer based on a GUID and a token name.\r
613\r
614 Returns a pointer to the buffer for the token specified by Guid and TokenName.\r
615 If TokenName is not a valid token in the token space specified by Guid, \r
616 then the module will not build.\r
617\r
618 If Guid is NULL, then ASSERT().\r
619\r
620 @param Guid Pointer to a 128-bit unique value that designates \r
621 which namespace to retrieve a value from.\r
622 @param TokenName The name of the PCD token to retrieve a current value for. \r
623\r
624 @return A pointer to a PCD token buffer.\r
625\r
626**/\r
fb3df220 627#define PcdGetExPtr(Guid, TokenName) LibPcdGetExPtr ((Guid), _PCD_TOKEN_##TokenName)\r
64735d24 628\r
629\r
630/**\r
631 Retrieves a Boolean PCD token value based on a GUID and a token name.\r
632\r
633 Returns the Boolean value for the token specified by Guid and TokenName.\r
634 If TokenName is not a valid token in the token space specified by Guid, \r
635 then the module will not build.\r
636\r
637 If Guid is NULL, then ASSERT().\r
638\r
639 @param Guid Pointer to a 128-bit unique value that designates \r
640 which namespace to retrieve a value from.\r
641 @param TokenName The name of the PCD token to retrieve a current value for. \r
642\r
643 @return A Boolean PCD token value.\r
644\r
645**/\r
fb3df220 646#define PcdGetExBool(Guid, TokenName) LibPcdGetExBool ((Guid), _PCD_TOKEN_##TokenName)\r
647\r
64735d24 648\r
649/**\r
650 Sets an 8-bit PCD token value based on a GUID and a token name.\r
651\r
652 Sets the 8-bit value for the token specified by Guid and TokenName. Value is returned.\r
653 If TokenName is not a valid token in the token space specified by Guid, \r
654 then the module will not build.\r
655\r
656 If Guid is NULL, then ASSERT().\r
657\r
658 @param Guid Pointer to a 128-bit unique value that designates \r
659 which namespace to retrieve a value from.\r
660 @param TokenName The name of the PCD token to set the current value for.\r
661 @param Value The 8-bit value to set. \r
662\r
663 @return Value. \r
664\r
665**/\r
fb3df220 666#define PcdSetEx8(Guid, TokenName, Value) LibPcdSetEx8 ((Guid), _PCD_TOKEN_##TokenName, (Value))\r
64735d24 667\r
668\r
669/**\r
670 Sets a 16-bit PCD token value based on a GUID and a token name.\r
671\r
672 Sets the 16-bit value for the token specified by Guid and TokenName. Value is returned.\r
673 If TokenName is not a valid token in the token space specified by Guid, \r
674 then the module will not build.\r
675\r
676 If Guid is NULL, then ASSERT().\r
677\r
678 @param Guid Pointer to a 128-bit unique value that designates \r
679 which namespace to retrieve a value from.\r
680 @param TokenName The name of the PCD token to set the current value for.\r
681 @param Value The 16-bit value to set. \r
682\r
683 @return Value. \r
684\r
685**/\r
fb3df220 686#define PcdSetEx16(Guid, TokenName, Value) LibPcdSetEx16 ((Guid), _PCD_TOKEN_##TokenName, (Value))\r
64735d24 687\r
688\r
689/**\r
690 Sets a 32-bit PCD token value based on a GUID and a token name.\r
691\r
692 Sets the 32-bit value for the token specified by Guid and TokenName. Value is returned.\r
693 If TokenName is not a valid token in the token space specified by Guid, \r
694 then the module will not build.\r
695\r
696 If Guid is NULL, then ASSERT().\r
697\r
698 @param Guid Pointer to a 128-bit unique value that designates \r
699 which namespace to retrieve a value from.\r
700 @param TokenName The name of the PCD token to set the current value for.\r
701 @param Value The 32-bit value to set. \r
702\r
703 @return Value. \r
704\r
705**/\r
fb3df220 706#define PcdSetEx32(Guid, TokenName, Value) LibPcdSetEx32 ((Guid), _PCD_TOKEN_##TokenName, (Value))\r
64735d24 707\r
708\r
709/**\r
710 Sets a 64-bit PCD token value based on a GUID and a token name.\r
711\r
712 Sets the 64-bit value for the token specified by Guid and TokenName. Value is returned.\r
713 If TokenName is not a valid token in the token space specified by Guid, \r
714 then the module will not build.\r
715\r
716 If Guid is NULL, then ASSERT().\r
717\r
718 @param Guid Pointer to a 128-bit unique value that designates \r
719 which namespace to retrieve a value from.\r
720 @param TokenName The name of the PCD token to set the current value for.\r
721 @param Value The 64-bit value to set. \r
722\r
723 @return Value. \r
724\r
725**/\r
fb3df220 726#define PcdSetEx64(Guid, TokenName, Value) LibPcdSetEx64 ((Guid), _PCD_TOKEN_##TokenName, (Value))\r
64735d24 727\r
728\r
729/**\r
730 Sets a pointer to a PCD token buffer based on a GUID and a token name.\r
731\r
732 Sets the buffer for the token specified by Guid and TokenName. Buffer is returned. \r
733 If SizeOfBuffer is greater than the maximum size supported by Guid and TokenName, \r
734 then set SizeOfBuffer to the maximum size supported by Guid and TokenName and return \r
735 NULL to indicate that the set operation was not actually performed. If SizeOfBuffer \r
736 is set to MAX_ADDRESS, then SizeOfBuffer must be set to the maximum size supported by\r
737 Guid and TokenName and NULL must be returned.\r
738 If TokenName is not a valid token in the token space specified by Guid, \r
739 then the module will not build.\r
740 \r
741 If Guid is NULL, then ASSERT().\r
742 If SizeOfBuffer is NULL, then ASSERT().\r
743 If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r
744\r
745 @param Guid Pointer to a 128-bit unique value that designates \r
746 which namespace to retrieve a value from.\r
747 @param TokenName The name of the PCD token to set the current value for.\r
748 @param SizeOfBuffer A pointer to the size, in bytes, of Buffer. \r
749 @param Value Pointer to the buffer to set.\r
750 \r
751 @return Buffer. \r
752\r
753**/\r
fb3df220 754#define PcdSetExPtr(Guid, TokenName, SizeOfBuffer, Buffer) \\r
755 LibPcdSetExPtr ((Guid), _PCD_TOKEN_##TokenName, (SizeOfBuffer), (Buffer))\r
64735d24 756\r
757\r
758/**\r
759 Sets a Boolean PCD token value based on a GUID and a token name.\r
760\r
761 Sets the Boolean value for the token specified by Guid and TokenName. Value is returned. \r
762 If TokenName is not a valid token in the token space specified by Guid, \r
763 then the module will not build.\r
764\r
765 If Guid is NULL, then ASSERT().\r
766\r
767 @param Guid Pointer to a 128-bit unique value that designates \r
768 which namespace to retrieve a value from.\r
769 @param TokenName The name of the PCD token to set the current value for. \r
770 @param Value The Boolean value to set.\r
771\r
772 @return Value. \r
773\r
774**/ \r
fb3df220 775#define PcdSetExBool(Guid, TokenName, Value) \\r
776 LibPcdSetExBool((Guid), _PCD_TOKEN_##TokenName, (Value))\r
777\r
778\r
779/**\r
64735d24 780 This function provides a means by which SKU support can be established in the PCD infrastructure.\r
781\r
fb3df220 782 Sets the current SKU in the PCD database to the value specified by SkuId. SkuId is returned.\r
783\r
784 @param[in] SkuId The SKU value that will be used when the PCD service will retrieve and \r
fb287b56 785 set values associated with a PCD token.\r
64735d24 786 \r
787 If SkuId >= 0x100, then ASSERT(). \r
fb3df220 788\r
f73e0ad2 789 @return Return the SKU ID that just be set.\r
fb3df220 790\r
791**/\r
792UINTN\r
793EFIAPI\r
794LibPcdSetSku (\r
795 IN UINTN SkuId\r
796 );\r
797\r
798\r
799/**\r
64735d24 800 This function provides a means by which to retrieve a value for a given PCD token.\r
801 \r
fb3df220 802 Returns the 8-bit value for the token specified by TokenNumber. \r
803\r
2a254b90 804 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
fb3df220 805\r
f73e0ad2 806 @return Returns the 8-bit value for the token specified by TokenNumber. \r
fb3df220 807\r
808**/\r
809UINT8\r
810EFIAPI\r
811LibPcdGet8 (\r
812 IN UINTN TokenNumber\r
813 );\r
814\r
815\r
816/**\r
64735d24 817 This function provides a means by which to retrieve a value for a given PCD token.\r
818 \r
fb3df220 819 Returns the 16-bit value for the token specified by TokenNumber. \r
820\r
2a254b90 821 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
fb3df220 822\r
f73e0ad2 823 @return Returns the 16-bit value for the token specified by TokenNumber. \r
fb3df220 824\r
825**/\r
826UINT16\r
827EFIAPI\r
828LibPcdGet16 (\r
829 IN UINTN TokenNumber\r
830 );\r
831\r
832\r
833/**\r
64735d24 834 This function provides a means by which to retrieve a value for a given PCD token.\r
835 \r
fb3df220 836 Returns the 32-bit value for the token specified by TokenNumber. \r
837\r
838 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
839\r
f73e0ad2 840 @return Returns the 32-bit value for the token specified by TokenNumber.\r
fb3df220 841\r
842**/\r
843UINT32\r
844EFIAPI\r
845LibPcdGet32 (\r
846 IN UINTN TokenNumber\r
847 );\r
848\r
849\r
850/**\r
64735d24 851 This function provides a means by which to retrieve a value for a given PCD token.\r
852 \r
fb3df220 853 Returns the 64-bit value for the token specified by TokenNumber.\r
854\r
855 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
856\r
f73e0ad2 857 @return Returns the 64-bit value for the token specified by TokenNumber.\r
fb3df220 858\r
859**/\r
860UINT64\r
861EFIAPI\r
862LibPcdGet64 (\r
863 IN UINTN TokenNumber\r
864 );\r
865\r
866\r
867/**\r
64735d24 868 This function provides a means by which to retrieve a value for a given PCD token.\r
869 \r
fb3df220 870 Returns the pointer to the buffer of the token specified by TokenNumber.\r
871\r
872 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
873\r
f73e0ad2 874 @return Returns the pointer to the token specified by TokenNumber.\r
fb3df220 875\r
876**/\r
877VOID *\r
878EFIAPI\r
879LibPcdGetPtr (\r
880 IN UINTN TokenNumber\r
881 );\r
882\r
883\r
884/**\r
64735d24 885 This function provides a means by which to retrieve a value for a given PCD token.\r
886 \r
fb3df220 887 Returns the Boolean value of the token specified by TokenNumber. \r
888\r
889 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
890\r
f73e0ad2 891 @return Returns the Boolean value of the token specified by TokenNumber. \r
fb3df220 892\r
893**/\r
894BOOLEAN \r
895EFIAPI\r
896LibPcdGetBool (\r
897 IN UINTN TokenNumber\r
898 );\r
899\r
900\r
901/**\r
64735d24 902 This function provides a means by which to retrieve the size of a given PCD token.\r
fb3df220 903\r
904 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
905\r
f73e0ad2 906 @return Returns the size of the token specified by TokenNumber. \r
fb3df220 907\r
908**/\r
909UINTN\r
910EFIAPI\r
911LibPcdGetSize (\r
912 IN UINTN TokenNumber\r
913 );\r
914\r
915\r
916/**\r
64735d24 917 This function provides a means by which to retrieve a value for a given PCD token.\r
918 \r
fb3df220 919 Returns the 8-bit value for the token specified by TokenNumber and Guid.\r
64735d24 920 \r
fb3df220 921 If Guid is NULL, then ASSERT(). \r
922\r
923 @param[in] Guid Pointer to a 128-bit unique value that designates \r
924 which namespace to retrieve a value from.\r
925 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
926\r
f73e0ad2 927 @return Return the UINT8.\r
fb3df220 928\r
929**/\r
930UINT8\r
931EFIAPI\r
932LibPcdGetEx8 (\r
933 IN CONST GUID *Guid,\r
934 IN UINTN TokenNumber\r
935 );\r
936\r
937\r
938/**\r
64735d24 939 This function provides a means by which to retrieve a value for a given PCD token.\r
940\r
fb3df220 941 Returns the 16-bit value for the token specified by TokenNumber and Guid.\r
64735d24 942 \r
fb3df220 943 If Guid is NULL, then ASSERT(). \r
944\r
945 @param[in] Guid Pointer to a 128-bit unique value that designates \r
946 which namespace to retrieve a value from.\r
947 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
948\r
f73e0ad2 949 @return Return the UINT16.\r
fb3df220 950\r
951**/\r
952UINT16\r
953EFIAPI\r
954LibPcdGetEx16 (\r
955 IN CONST GUID *Guid,\r
956 IN UINTN TokenNumber\r
957 );\r
958\r
959\r
960/**\r
961 Returns the 32-bit value for the token specified by TokenNumber and Guid.\r
962 If Guid is NULL, then ASSERT(). \r
963\r
964 @param[in] Guid Pointer to a 128-bit unique value that designates \r
965 which namespace to retrieve a value from.\r
966 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
967\r
f73e0ad2 968 @return Return the UINT32.\r
fb3df220 969\r
970**/\r
971UINT32\r
972EFIAPI\r
973LibPcdGetEx32 (\r
974 IN CONST GUID *Guid,\r
975 IN UINTN TokenNumber\r
976 );\r
977\r
978\r
979/**\r
64735d24 980 This function provides a means by which to retrieve a value for a given PCD token.\r
981 \r
fb3df220 982 Returns the 64-bit value for the token specified by TokenNumber and Guid.\r
64735d24 983 \r
fb3df220 984 If Guid is NULL, then ASSERT(). \r
985\r
fb287b56 986 @param[in] Guid Pointer to a 128-bit unique value that designates \r
987 which namespace to retrieve a value from.\r
988 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
fb3df220 989\r
f73e0ad2 990 @return Return the UINT64.\r
fb3df220 991\r
992**/\r
993UINT64\r
994EFIAPI\r
995LibPcdGetEx64 (\r
996 IN CONST GUID *Guid,\r
997 IN UINTN TokenNumber\r
998 );\r
999\r
1000\r
1001/**\r
64735d24 1002 This function provides a means by which to retrieve a value for a given PCD token.\r
1003 \r
fb3df220 1004 Returns the pointer to the buffer of token specified by TokenNumber and Guid.\r
64735d24 1005 \r
fb3df220 1006 If Guid is NULL, then ASSERT(). \r
1007\r
fb287b56 1008 @param[in] Guid Pointer to a 128-bit unique value that designates \r
1009 which namespace to retrieve a value from.\r
1010 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
fb3df220 1011\r
f73e0ad2 1012 @return Return the VOID* pointer.\r
fb3df220 1013\r
1014**/\r
1015VOID *\r
1016EFIAPI\r
1017LibPcdGetExPtr (\r
1018 IN CONST GUID *Guid,\r
1019 IN UINTN TokenNumber\r
1020 );\r
1021\r
1022\r
1023/**\r
64735d24 1024 This function provides a means by which to retrieve a value for a given PCD token.\r
1025 \r
fb3df220 1026 Returns the Boolean value of the token specified by TokenNumber and Guid. \r
64735d24 1027 \r
fb3df220 1028 If Guid is NULL, then ASSERT(). \r
1029\r
fb287b56 1030 @param[in] Guid Pointer to a 128-bit unique value that designates \r
1031 which namespace to retrieve a value from.\r
1032 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
fb3df220 1033\r
f73e0ad2 1034 @return Return the BOOLEAN.\r
fb3df220 1035\r
1036**/\r
1037BOOLEAN\r
1038EFIAPI\r
1039LibPcdGetExBool (\r
1040 IN CONST GUID *Guid,\r
1041 IN UINTN TokenNumber\r
1042 );\r
1043\r
1044\r
1045/**\r
64735d24 1046 This function provides a means by which to retrieve the size of a given PCD token.\r
1047 \r
fb3df220 1048 Returns the size of the token specified by TokenNumber and Guid. \r
64735d24 1049 \r
fb3df220 1050 If Guid is NULL, then ASSERT(). \r
1051\r
fb287b56 1052 @param[in] Guid Pointer to a 128-bit unique value that designates \r
1053 which namespace to retrieve a value from.\r
1054 @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
fb3df220 1055\r
f73e0ad2 1056 @return Return the size.\r
fb3df220 1057\r
1058**/\r
1059UINTN\r
1060EFIAPI\r
1061LibPcdGetExSize (\r
1062 IN CONST GUID *Guid,\r
1063 IN UINTN TokenNumber\r
1064 );\r
1065\r
1066\r
1067/**\r
64735d24 1068 This function provides a means by which to set a value for a given PCD token.\r
1069 \r
fb3df220 1070 Sets the 8-bit value for the token specified by TokenNumber \r
1071 to the value specified by Value. Value is returned.\r
1072 \r
fb287b56 1073 @param[in] TokenNumber The PCD token number to set a current value for.\r
1074 @param[in] Value The 8-bit value to set.\r
fb3df220 1075\r
f73e0ad2 1076 @return Return the value been set.\r
fb3df220 1077\r
1078**/\r
1079UINT8\r
1080EFIAPI\r
1081LibPcdSet8 (\r
1082 IN UINTN TokenNumber,\r
1083 IN UINT8 Value\r
1084 );\r
1085\r
1086\r
1087/**\r
64735d24 1088 This function provides a means by which to set a value for a given PCD token.\r
1089 \r
fb3df220 1090 Sets the 16-bit value for the token specified by TokenNumber \r
1091 to the value specified by Value. Value is returned.\r
1092 \r
fb287b56 1093 @param[in] TokenNumber The PCD token number to set a current value for.\r
1094 @param[in] Value The 16-bit value to set.\r
fb3df220 1095\r
f73e0ad2 1096 @return Return the value been set.\r
fb3df220 1097\r
1098**/\r
1099UINT16\r
1100EFIAPI\r
1101LibPcdSet16 (\r
1102 IN UINTN TokenNumber,\r
1103 IN UINT16 Value\r
1104 );\r
1105\r
1106\r
1107/**\r
64735d24 1108 This function provides a means by which to set a value for a given PCD token.\r
1109 \r
fb3df220 1110 Sets the 32-bit value for the token specified by TokenNumber \r
1111 to the value specified by Value. Value is returned.\r
1112 \r
fb287b56 1113 @param[in] TokenNumber The PCD token number to set a current value for.\r
1114 @param[in] Value The 32-bit value to set.\r
fb3df220 1115\r
f73e0ad2 1116 @return Return the value been set.\r
fb3df220 1117\r
1118**/\r
1119UINT32\r
1120EFIAPI\r
1121LibPcdSet32 (\r
1122 IN UINTN TokenNumber,\r
1123 IN UINT32 Value\r
1124 );\r
1125\r
1126\r
1127/**\r
64735d24 1128 This function provides a means by which to set a value for a given PCD token.\r
1129 \r
fb3df220 1130 Sets the 64-bit value for the token specified by TokenNumber \r
1131 to the value specified by Value. Value is returned.\r
1132 \r
fb287b56 1133 @param[in] TokenNumber The PCD token number to set a current value for.\r
1134 @param[in] Value The 64-bit value to set.\r
fb3df220 1135\r
f73e0ad2 1136 @return Return the value been set.\r
fb3df220 1137\r
1138**/\r
1139UINT64\r
1140EFIAPI\r
1141LibPcdSet64 (\r
1142 IN UINTN TokenNumber,\r
1143 IN UINT64 Value\r
1144 );\r
1145\r
1146\r
1147/**\r
64735d24 1148 This function provides a means by which to set a value for a given PCD token.\r
1149 \r
fb3df220 1150 Sets a buffer for the token specified by TokenNumber to the value \r
d3057543 1151 specified by Buffer and SizeOfBuffer. Buffer is returned. \r
1152 If SizeOfBuffer is greater than the maximum size support by TokenNumber, \r
1153 then set SizeOfBuffer to the maximum size supported by TokenNumber and \r
fb3df220 1154 return NULL to indicate that the set operation was not actually performed. \r
1155\r
d3057543 1156 If SizeOfBuffer is set to MAX_ADDRESS, then SizeOfBuffer must be set to the \r
fb3df220 1157 maximum size supported by TokenName and NULL must be returned.\r
1158 \r
d3057543 1159 If SizeOfBuffer is NULL, then ASSERT().\r
1160 If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r
fb3df220 1161 \r
2a254b90 1162 @param[in] TokenNumber The PCD token number to set a current value for.\r
2616448e 1163 @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r
64735d24 1164 @param[in] Buffer A pointer to the buffer to set.\r
fb3df220 1165\r
f73e0ad2 1166 @return Return the pointer for the buffer been set.\r
fb3df220 1167\r
1168**/\r
64735d24 1169VOID *\r
fb3df220 1170EFIAPI\r
1171LibPcdSetPtr (\r
64735d24 1172 IN UINTN TokenNumber,\r
1173 IN OUT UINTN *SizeOfBuffer,\r
b52f6a1a 1174 IN CONST VOID *Buffer\r
fb3df220 1175 );\r
1176\r
1177\r
1178/**\r
64735d24 1179 This function provides a means by which to set a value for a given PCD token.\r
1180 \r
fb3df220 1181 Sets the Boolean value for the token specified by TokenNumber \r
1182 to the value specified by Value. Value is returned.\r
1183 \r
fb287b56 1184 @param[in] TokenNumber The PCD token number to set a current value for.\r
1185 @param[in] Value The boolean value to set.\r
fb3df220 1186\r
f73e0ad2 1187 @return Return the value been set.\r
fb3df220 1188\r
1189**/\r
1190BOOLEAN\r
1191EFIAPI\r
1192LibPcdSetBool (\r
1193 IN UINTN TokenNumber,\r
1194 IN BOOLEAN Value\r
1195 );\r
1196\r
1197\r
1198/**\r
64735d24 1199 This function provides a means by which to set a value for a given PCD token.\r
1200 \r
fb3df220 1201 Sets the 8-bit value for the token specified by TokenNumber and \r
1202 Guid to the value specified by Value. Value is returned.\r
64735d24 1203 \r
fb3df220 1204 If Guid is NULL, then ASSERT().\r
1205 \r
fb287b56 1206 @param[in] Guid Pointer to a 128-bit unique value that \r
1207 designates which namespace to set a value from.\r
1208 @param[in] TokenNumber The PCD token number to set a current value for.\r
1209 @param[in] Value The 8-bit value to set.\r
fb3df220 1210\r
f73e0ad2 1211 @return Return the value been set.\r
fb3df220 1212\r
1213**/\r
1214UINT8\r
1215EFIAPI\r
1216LibPcdSetEx8 (\r
1217 IN CONST GUID *Guid,\r
1218 IN UINTN TokenNumber,\r
1219 IN UINT8 Value\r
1220 );\r
1221\r
1222\r
1223/**\r
64735d24 1224 This function provides a means by which to set a value for a given PCD token.\r
1225 \r
fb3df220 1226 Sets the 16-bit value for the token specified by TokenNumber and \r
1227 Guid to the value specified by Value. Value is returned.\r
64735d24 1228 \r
fb3df220 1229 If Guid is NULL, then ASSERT().\r
1230 \r
fb287b56 1231 @param[in] Guid Pointer to a 128-bit unique value that \r
1232 designates which namespace to set a value from.\r
1233 @param[in] TokenNumber The PCD token number to set a current value for.\r
1234 @param[in] Value The 16-bit value to set.\r
fb3df220 1235\r
f73e0ad2 1236 @return Return the value been set.\r
fb3df220 1237\r
1238**/\r
1239UINT16\r
1240EFIAPI\r
1241LibPcdSetEx16 (\r
1242 IN CONST GUID *Guid,\r
1243 IN UINTN TokenNumber,\r
1244 IN UINT16 Value\r
1245 );\r
1246\r
1247\r
1248/**\r
64735d24 1249 This function provides a means by which to set a value for a given PCD token.\r
1250 \r
fb3df220 1251 Sets the 32-bit value for the token specified by TokenNumber and \r
1252 Guid to the value specified by Value. Value is returned.\r
64735d24 1253 \r
fb3df220 1254 If Guid is NULL, then ASSERT().\r
1255 \r
fb287b56 1256 @param[in] Guid Pointer to a 128-bit unique value that \r
1257 designates which namespace to set a value from.\r
1258 @param[in] TokenNumber The PCD token number to set a current value for.\r
1259 @param[in] Value The 32-bit value to set.\r
fb3df220 1260\r
f73e0ad2 1261 @return Return the value been set.\r
fb3df220 1262\r
1263**/\r
1264UINT32\r
1265EFIAPI\r
1266LibPcdSetEx32 (\r
1267 IN CONST GUID *Guid,\r
1268 IN UINTN TokenNumber,\r
1269 IN UINT32 Value\r
1270 );\r
1271\r
1272\r
1273/**\r
64735d24 1274 This function provides a means by which to set a value for a given PCD token.\r
1275 \r
fb3df220 1276 Sets the 64-bit value for the token specified by TokenNumber and \r
1277 Guid to the value specified by Value. Value is returned.\r
1278 If Guid is NULL, then ASSERT().\r
1279 \r
fb287b56 1280 @param[in] Guid Pointer to a 128-bit unique value that \r
1281 designates which namespace to set a value from.\r
1282 @param[in] TokenNumber The PCD token number to set a current value for.\r
1283 @param[in] Value The 64-bit value to set.\r
fb3df220 1284\r
f73e0ad2 1285 @return Return the value been set.\r
fb3df220 1286\r
1287**/\r
1288UINT64\r
1289EFIAPI\r
1290LibPcdSetEx64 (\r
1291 IN CONST GUID *Guid,\r
1292 IN UINTN TokenNumber,\r
1293 IN UINT64 Value\r
1294 );\r
1295\r
1296\r
1297/**\r
64735d24 1298 This function provides a means by which to set a value for a given PCD token.\r
1299 \r
fb3df220 1300 Sets a buffer for the token specified by TokenNumber to the value specified by \r
d3057543 1301 Buffer and SizeOfBuffer. Buffer is returned. If SizeOfBuffer is greater than \r
1302 the maximum size support by TokenNumber, then set SizeOfBuffer to the maximum size \r
fb3df220 1303 supported by TokenNumber and return NULL to indicate that the set operation \r
1304 was not actually performed. \r
1305 \r
1306 If Guid is NULL, then ASSERT().\r
d3057543 1307 If SizeOfBuffer is NULL, then ASSERT().\r
1308 If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r
fb3df220 1309 \r
fb287b56 1310 @param[in] Guid Pointer to a 128-bit unique value that \r
1311 designates which namespace to set a value from.\r
1312 @param[in] TokenNumber The PCD token number to set a current value for.\r
1313 @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r
1314 @param[in] Buffer A pointer to the buffer to set.\r
fb3df220 1315\r
f73e0ad2 1316 @return Return the pinter to the buffer been set.\r
fb3df220 1317\r
1318**/\r
1319VOID *\r
1320EFIAPI\r
1321LibPcdSetExPtr (\r
1322 IN CONST GUID *Guid,\r
1323 IN UINTN TokenNumber,\r
1324 IN OUT UINTN *SizeOfBuffer,\r
1325 IN VOID *Buffer\r
1326 );\r
1327\r
1328\r
1329/**\r
64735d24 1330 This function provides a means by which to set a value for a given PCD token.\r
1331 \r
fb3df220 1332 Sets the Boolean value for the token specified by TokenNumber and \r
1333 Guid to the value specified by Value. Value is returned.\r
64735d24 1334 \r
fb3df220 1335 If Guid is NULL, then ASSERT().\r
1336 \r
fb287b56 1337 @param[in] Guid Pointer to a 128-bit unique value that \r
1338 designates which namespace to set a value from.\r
1339 @param[in] TokenNumber The PCD token number to set a current value for.\r
1340 @param[in] Value The Boolean value to set.\r
fb3df220 1341\r
f73e0ad2 1342 @return Return the value been set.\r
fb3df220 1343\r
1344**/\r
1345BOOLEAN\r
1346EFIAPI\r
1347LibPcdSetExBool (\r
1348 IN CONST GUID *Guid,\r
1349 IN UINTN TokenNumber,\r
1350 IN BOOLEAN Value\r
1351 );\r
1352\r
1353\r
1354/**\r
1355 When the token specified by TokenNumber and Guid is set, \r
1356 then notification function specified by NotificationFunction is called. \r
1357 If Guid is NULL, then the default token space is used. \r
1358 If NotificationFunction is NULL, then ASSERT().\r
1359\r
1360 This notification function serves two purposes. Firstly, it notifies the module which \r
1361 did the registration that the value of this PCD token has been set. Secondly, \r
1362 it provides a mechanism for the module which did the registration to intercept \r
1363 the set operation and override the value been set if necessary. After the invocation \r
1364 of the callback function, TokenData will be used by PCD service PEIM or driver to \r
1365 modify the internal data in PCD database. \r
1366\r
1367\r
2a254b90 1368 @param[in] CallBackGuid The PCD token GUID being set.\r
1369 @param[in] CallBackToken The PCD token number being set.\r
1370 @param[in, out] TokenData A pointer to the token data being set.\r
1371 @param[in] TokenDataSize The size, in bytes, of the data being set.\r
fb3df220 1372\r
fb3df220 1373**/\r
1374typedef\r
1375VOID\r
78bf8f2d 1376(EFIAPI *PCD_CALLBACK)(\r
fb3df220 1377 IN CONST GUID *CallBackGuid, OPTIONAL\r
1378 IN UINTN CallBackToken,\r
1379 IN OUT VOID *TokenData,\r
1380 IN UINTN TokenDataSize\r
1381 );\r
1382\r
1383\r
1384/**\r
64735d24 1385 Set up a notification function that is called when a specified token is set.\r
1386 \r
fb3df220 1387 When the token specified by TokenNumber and Guid is set, \r
1388 then notification function specified by NotificationFunction is called. \r
1389 If Guid is NULL, then the default token space is used. \r
64735d24 1390 \r
fb3df220 1391 If NotificationFunction is NULL, then ASSERT().\r
1392\r
fb287b56 1393 @param[in] Guid Pointer to a 128-bit unique value that designates which \r
1394 namespace to set a value from. If NULL, then the default \r
1395 token space is used.\r
1396 @param[in] TokenNumber The PCD token number to monitor.\r
1397 @param[in] NotificationFunction The function to call when the token \r
1398 specified by Guid and TokenNumber is set.\r
fb3df220 1399\r
1400**/\r
1401VOID\r
1402EFIAPI\r
1403LibPcdCallbackOnSet (\r
1404 IN CONST GUID *Guid, OPTIONAL\r
1405 IN UINTN TokenNumber,\r
1406 IN PCD_CALLBACK NotificationFunction\r
1407 );\r
1408\r
1409\r
1410/**\r
1411 Disable a notification function that was established with LibPcdCallbackonSet().\r
64735d24 1412 \r
1413 Disable a notification function that was previously established with LibPcdCallbackOnSet(). \r
1414 \r
1415 If NotificationFunction is NULL, then ASSERT().\r
1416 If LibPcdCallbackOnSet() was not previously called with Guid, TokenNumber, \r
1417 and NotificationFunction, then ASSERT().\r
1418 \r
fb287b56 1419 @param[in] Guid Specify the GUID token space.\r
1420 @param[in] TokenNumber Specify the token number.\r
fb3df220 1421 @param[in] NotificationFunction The callback function to be unregistered.\r
1422\r
fb3df220 1423**/\r
1424VOID\r
1425EFIAPI\r
1426LibPcdCancelCallback (\r
1427 IN CONST GUID *Guid, OPTIONAL\r
1428 IN UINTN TokenNumber,\r
1429 IN PCD_CALLBACK NotificationFunction\r
1430 );\r
1431\r
1432\r
1433/**\r
64735d24 1434 Retrieves the next token in a token space.\r
1435 \r
fb3df220 1436 Retrieves the next PCD token number from the token space specified by Guid. \r
1437 If Guid is NULL, then the default token space is used. If TokenNumber is 0, \r
1438 then the first token number is returned. Otherwise, the token number that \r
1439 follows TokenNumber in the token space is returned. If TokenNumber is the last \r
64735d24 1440 token number in the token space, then 0 is returned. \r
1441 \r
1442 If TokenNumber is not 0 and is not in the token space specified by Guid, then ASSERT().\r
fb3df220 1443\r
2a254b90 1444 @param[in] Guid Pointer to a 128-bit unique value that designates which namespace \r
1445 to set a value from. If NULL, then the default token space is used.\r
1446 @param[in] TokenNumber The previous PCD token number. If 0, then retrieves the first PCD \r
1447 token number.\r
fb3df220 1448\r
f73e0ad2 1449 @return The next valid token number.\r
fb3df220 1450\r
1451**/\r
1452UINTN \r
1453EFIAPI\r
1454LibPcdGetNextToken (\r
1455 IN CONST GUID *Guid, OPTIONAL\r
1456 IN UINTN TokenNumber\r
1457 );\r
1458\r
1459\r
1460\r
1461/**\r
64735d24 1462 Used to retrieve the list of available PCD token space GUIDs.\r
1463 \r
fb3df220 1464 Retrieves the next PCD token space from a token space specified by Guid.\r
1465 Guid of NULL is reserved to mark the default local token namespace on the current\r
1466 platform. If Guid is NULL, then the GUID of the first non-local token space of the \r
1467 current platform is returned. If Guid is the last non-local token space, \r
1468 then NULL is returned. \r
1469\r
1470 If Guid is not NULL and is not a valid token space in the current platform, then ASSERT().\r
1471\r
1472\r
1473 \r
fb287b56 1474 @param[in] Guid Pointer to a 128-bit unique value that designates from which namespace \r
1475 to start the search.\r
fb3df220 1476\r
f73e0ad2 1477 @return The next valid token namespace.\r
fb3df220 1478\r
1479**/\r
1480GUID * \r
1481EFIAPI\r
1482LibPcdGetNextTokenSpace (\r
64735d24 1483 IN CONST GUID *TokenSpaceGuid\r
fb3df220 1484 );\r
1485\r
1486\r
1487/**\r
64735d24 1488 Sets a value of a patchable PCD entry that is type pointer.\r
1489 \r
fb3df220 1490 Sets the PCD entry specified by PatchVariable to the value specified by Buffer \r
d3057543 1491 and SizeOfBuffer. Buffer is returned. If SizeOfBuffer is greater than \r
1492 MaximumDatumSize, then set SizeOfBuffer to MaximumDatumSize and return \r
fb3df220 1493 NULL to indicate that the set operation was not actually performed. \r
d3057543 1494 If SizeOfBuffer is set to MAX_ADDRESS, then SizeOfBuffer must be set to \r
fb3df220 1495 MaximumDatumSize and NULL must be returned.\r
1496 \r
1497 If PatchVariable is NULL, then ASSERT().\r
d3057543 1498 If SizeOfBuffer is NULL, then ASSERT().\r
1499 If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r
fb3df220 1500\r
1501 @param[in] PatchVariable A pointer to the global variable in a module that is \r
1502 the target of the set operation.\r
1503 @param[in] MaximumDatumSize The maximum size allowed for the PCD entry specified by PatchVariable.\r
1504 @param[in, out] SizeOfBuffer A pointer to the size, in bytes, of Buffer.\r
1505 @param[in] Buffer A pointer to the buffer to used to set the target variable.\r
f73e0ad2 1506 \r
9638ba6d 1507 @return Return the pointer to the buffer been set.\r
fb3df220 1508\r
1509**/\r
1510VOID *\r
1511EFIAPI\r
1512LibPatchPcdSetPtr (\r
1513 IN VOID *PatchVariable,\r
1514 IN UINTN MaximumDatumSize,\r
1515 IN OUT UINTN *SizeOfBuffer,\r
1516 IN CONST VOID *Buffer\r
1517 );\r
1518\r
1519#endif\r