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1 | /** @file\r | |
2 | Implementation of PcdLib class library for DXE phase.\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2008, Intel Corporation<BR>\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 | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | \r | |
17 | #include <PiDxe.h>\r | |
18 | \r | |
19 | #include <Protocol/Pcd.h>\r | |
20 | \r | |
21 | #include <Library/PcdLib.h>\r | |
22 | #include <Library/DebugLib.h>\r | |
23 | #include <Library/UefiBootServicesTableLib.h>\r | |
24 | #include <Library/BaseMemoryLib.h>\r | |
25 | \r | |
26 | PCD_PROTOCOL *mPcd = NULL;\r | |
27 | \r | |
28 | \r | |
29 | /**\r | |
30 | The constructor function caches the PCD_PROTOCOL pointer.\r | |
31 | \r | |
32 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r | |
33 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
34 | \r | |
35 | @retval EFI_SUCCESS The constructor always return EFI_SUCCESS.\r | |
36 | \r | |
37 | **/\r | |
38 | EFI_STATUS\r | |
39 | EFIAPI\r | |
40 | PcdLibConstructor (\r | |
41 | IN EFI_HANDLE ImageHandle,\r | |
42 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
43 | )\r | |
44 | {\r | |
45 | EFI_STATUS Status;\r | |
46 | \r | |
47 | //\r | |
48 | // PCD protocol has not been installed, but a module needs to access a\r | |
49 | // dynamic PCD entry.\r | |
50 | // \r | |
51 | Status = gBS->LocateProtocol (&gPcdProtocolGuid, NULL, (VOID **)&mPcd);\r | |
52 | ASSERT_EFI_ERROR (Status);\r | |
53 | ASSERT (mPcd!= NULL);\r | |
54 | \r | |
55 | return Status;\r | |
56 | }\r | |
57 | \r | |
58 | \r | |
59 | /**\r | |
60 | This function provides a means by which SKU support can be established in the PCD infrastructure.\r | |
61 | \r | |
62 | Sets the current SKU in the PCD database to the value specified by SkuId. SkuId is returned.\r | |
63 | If SkuId >= PCD_MAX_SKU_ID, then ASSERT(). \r | |
64 | \r | |
65 | @param SkuId The SKU value that will be used when the PCD service retrieves and sets values\r | |
66 | associated with a PCD token.\r | |
67 | \r | |
68 | @return Return the SKU ID that just be set.\r | |
69 | \r | |
70 | **/\r | |
71 | UINTN\r | |
72 | EFIAPI\r | |
73 | LibPcdSetSku (\r | |
74 | IN UINTN SkuId\r | |
75 | )\r | |
76 | {\r | |
77 | ASSERT (SkuId < PCD_MAX_SKU_ID);\r | |
78 | \r | |
79 | mPcd->SetSku (SkuId);\r | |
80 | \r | |
81 | return SkuId;\r | |
82 | }\r | |
83 | \r | |
84 | \r | |
85 | \r | |
86 | /**\r | |
87 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
88 | \r | |
89 | Returns the 8-bit value for the token specified by TokenNumber. \r | |
90 | \r | |
91 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
92 | \r | |
93 | @return Returns the 8-bit value for the token specified by TokenNumber. \r | |
94 | \r | |
95 | **/\r | |
96 | UINT8\r | |
97 | EFIAPI\r | |
98 | LibPcdGet8 (\r | |
99 | IN UINTN TokenNumber\r | |
100 | )\r | |
101 | {\r | |
102 | return mPcd->Get8 (TokenNumber);\r | |
103 | }\r | |
104 | \r | |
105 | \r | |
106 | \r | |
107 | /**\r | |
108 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
109 | \r | |
110 | Returns the 16-bit value for the token specified by TokenNumber. \r | |
111 | \r | |
112 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
113 | \r | |
114 | @return Returns the 16-bit value for the token specified by TokenNumber. \r | |
115 | \r | |
116 | **/\r | |
117 | UINT16\r | |
118 | EFIAPI\r | |
119 | LibPcdGet16 (\r | |
120 | IN UINTN TokenNumber\r | |
121 | )\r | |
122 | {\r | |
123 | return mPcd->Get16 (TokenNumber);\r | |
124 | }\r | |
125 | \r | |
126 | \r | |
127 | \r | |
128 | /**\r | |
129 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
130 | \r | |
131 | Returns the 32-bit value for the token specified by TokenNumber. \r | |
132 | \r | |
133 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
134 | \r | |
135 | @return Returns the 32-bit value for the token specified by TokenNumber.\r | |
136 | \r | |
137 | **/\r | |
138 | UINT32\r | |
139 | EFIAPI\r | |
140 | LibPcdGet32 (\r | |
141 | IN UINTN TokenNumber\r | |
142 | )\r | |
143 | {\r | |
144 | return mPcd->Get32 (TokenNumber);\r | |
145 | }\r | |
146 | \r | |
147 | \r | |
148 | \r | |
149 | /**\r | |
150 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
151 | \r | |
152 | Returns the 64-bit value for the token specified by TokenNumber.\r | |
153 | \r | |
154 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
155 | \r | |
156 | @return Returns the 64-bit value for the token specified by TokenNumber.\r | |
157 | \r | |
158 | **/\r | |
159 | UINT64\r | |
160 | EFIAPI\r | |
161 | LibPcdGet64 (\r | |
162 | IN UINTN TokenNumber\r | |
163 | )\r | |
164 | {\r | |
165 | return mPcd->Get64 (TokenNumber);\r | |
166 | }\r | |
167 | \r | |
168 | \r | |
169 | \r | |
170 | /**\r | |
171 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
172 | \r | |
173 | Returns the pointer to the buffer of the token specified by TokenNumber.\r | |
174 | \r | |
175 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
176 | \r | |
177 | @return Returns the pointer to the token specified by TokenNumber.\r | |
178 | \r | |
179 | **/\r | |
180 | VOID *\r | |
181 | EFIAPI\r | |
182 | LibPcdGetPtr (\r | |
183 | IN UINTN TokenNumber\r | |
184 | )\r | |
185 | {\r | |
186 | return mPcd->GetPtr (TokenNumber);\r | |
187 | }\r | |
188 | \r | |
189 | \r | |
190 | \r | |
191 | /**\r | |
192 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
193 | \r | |
194 | Returns the Boolean value of the token specified by TokenNumber. \r | |
195 | \r | |
196 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
197 | \r | |
198 | @return Returns the Boolean value of the token specified by TokenNumber. \r | |
199 | \r | |
200 | **/\r | |
201 | BOOLEAN \r | |
202 | EFIAPI\r | |
203 | LibPcdGetBool (\r | |
204 | IN UINTN TokenNumber\r | |
205 | )\r | |
206 | {\r | |
207 | return mPcd->GetBool (TokenNumber);\r | |
208 | }\r | |
209 | \r | |
210 | \r | |
211 | \r | |
212 | /**\r | |
213 | This function provides a means by which to retrieve the size of a given PCD token.\r | |
214 | \r | |
215 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
216 | \r | |
217 | @return Returns the size of the token specified by TokenNumber. \r | |
218 | \r | |
219 | **/\r | |
220 | UINTN\r | |
221 | EFIAPI\r | |
222 | LibPcdGetSize (\r | |
223 | IN UINTN TokenNumber\r | |
224 | )\r | |
225 | {\r | |
226 | return mPcd->GetSize (TokenNumber);\r | |
227 | }\r | |
228 | \r | |
229 | \r | |
230 | \r | |
231 | /**\r | |
232 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
233 | \r | |
234 | Returns the 8-bit value for the token specified by TokenNumber and Guid.\r | |
235 | \r | |
236 | If Guid is NULL, then ASSERT(). \r | |
237 | \r | |
238 | @param[in] Guid Pointer to a 128-bit unique value that designates \r | |
239 | which namespace to retrieve a value from.\r | |
240 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
241 | \r | |
242 | @return Return the UINT8.\r | |
243 | \r | |
244 | **/\r | |
245 | UINT8\r | |
246 | EFIAPI\r | |
247 | LibPcdGetEx8 (\r | |
248 | IN CONST GUID *Guid,\r | |
249 | IN UINTN TokenNumber\r | |
250 | )\r | |
251 | {\r | |
252 | ASSERT (Guid != NULL);\r | |
253 | \r | |
254 | return mPcd->Get8Ex (Guid, TokenNumber);\r | |
255 | }\r | |
256 | \r | |
257 | \r | |
258 | /**\r | |
259 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
260 | \r | |
261 | Returns the 16-bit value for the token specified by TokenNumber and Guid.\r | |
262 | \r | |
263 | If Guid is NULL, then ASSERT(). \r | |
264 | \r | |
265 | @param[in] Guid Pointer to a 128-bit unique value that designates \r | |
266 | which namespace to retrieve a value from.\r | |
267 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
268 | \r | |
269 | @return Return the UINT16.\r | |
270 | \r | |
271 | **/\r | |
272 | UINT16\r | |
273 | EFIAPI\r | |
274 | LibPcdGetEx16 (\r | |
275 | IN CONST GUID *Guid,\r | |
276 | IN UINTN TokenNumber\r | |
277 | )\r | |
278 | {\r | |
279 | ASSERT (Guid != NULL);\r | |
280 | \r | |
281 | return mPcd->Get16Ex (Guid, TokenNumber);\r | |
282 | }\r | |
283 | \r | |
284 | \r | |
285 | /**\r | |
286 | Returns the 32-bit value for the token specified by TokenNumber and Guid.\r | |
287 | If Guid is NULL, then ASSERT(). \r | |
288 | \r | |
289 | @param[in] Guid Pointer to a 128-bit unique value that designates \r | |
290 | which namespace to retrieve a value from.\r | |
291 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
292 | \r | |
293 | @return Return the UINT32.\r | |
294 | \r | |
295 | **/\r | |
296 | UINT32\r | |
297 | EFIAPI\r | |
298 | LibPcdGetEx32 (\r | |
299 | IN CONST GUID *Guid,\r | |
300 | IN UINTN TokenNumber\r | |
301 | )\r | |
302 | {\r | |
303 | ASSERT (Guid != NULL);\r | |
304 | \r | |
305 | return mPcd->Get32Ex (Guid, TokenNumber);\r | |
306 | }\r | |
307 | \r | |
308 | \r | |
309 | \r | |
310 | /**\r | |
311 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
312 | \r | |
313 | Returns the 64-bit value for the token specified by TokenNumber and Guid.\r | |
314 | \r | |
315 | If Guid is NULL, then ASSERT(). \r | |
316 | \r | |
317 | @param[in] Guid Pointer to a 128-bit unique value that designates \r | |
318 | which namespace to retrieve a value from.\r | |
319 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
320 | \r | |
321 | @return Return the UINT64.\r | |
322 | \r | |
323 | **/\r | |
324 | UINT64\r | |
325 | EFIAPI\r | |
326 | LibPcdGetEx64 (\r | |
327 | IN CONST GUID *Guid,\r | |
328 | IN UINTN TokenNumber\r | |
329 | )\r | |
330 | {\r | |
331 | ASSERT (Guid != NULL);\r | |
332 | \r | |
333 | return mPcd->Get64Ex (Guid, TokenNumber);\r | |
334 | }\r | |
335 | \r | |
336 | \r | |
337 | \r | |
338 | /**\r | |
339 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
340 | \r | |
341 | Returns the pointer to the buffer of token specified by TokenNumber and Guid.\r | |
342 | \r | |
343 | If Guid is NULL, then ASSERT(). \r | |
344 | \r | |
345 | @param[in] Guid Pointer to a 128-bit unique value that designates \r | |
346 | which namespace to retrieve a value from.\r | |
347 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
348 | \r | |
349 | @return Return the VOID* pointer.\r | |
350 | \r | |
351 | **/\r | |
352 | VOID *\r | |
353 | EFIAPI\r | |
354 | LibPcdGetExPtr (\r | |
355 | IN CONST GUID *Guid,\r | |
356 | IN UINTN TokenNumber\r | |
357 | )\r | |
358 | {\r | |
359 | ASSERT (Guid != NULL);\r | |
360 | \r | |
361 | return mPcd->GetPtrEx (Guid, TokenNumber);\r | |
362 | }\r | |
363 | \r | |
364 | \r | |
365 | \r | |
366 | /**\r | |
367 | This function provides a means by which to retrieve a value for a given PCD token.\r | |
368 | \r | |
369 | Returns the Boolean value of the token specified by TokenNumber and Guid. \r | |
370 | \r | |
371 | If Guid is NULL, then ASSERT(). \r | |
372 | \r | |
373 | @param[in] Guid Pointer to a 128-bit unique value that designates \r | |
374 | which namespace to retrieve a value from.\r | |
375 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
376 | \r | |
377 | @return Return the BOOLEAN.\r | |
378 | \r | |
379 | **/\r | |
380 | BOOLEAN\r | |
381 | EFIAPI\r | |
382 | LibPcdGetExBool (\r | |
383 | IN CONST GUID *Guid,\r | |
384 | IN UINTN TokenNumber\r | |
385 | )\r | |
386 | {\r | |
387 | ASSERT (Guid != NULL);\r | |
388 | \r | |
389 | return mPcd->GetBoolEx (Guid, TokenNumber);\r | |
390 | }\r | |
391 | \r | |
392 | \r | |
393 | \r | |
394 | /**\r | |
395 | This function provides a means by which to retrieve the size of a given PCD token.\r | |
396 | \r | |
397 | Returns the size of the token specified by TokenNumber and Guid. \r | |
398 | \r | |
399 | If Guid is NULL, then ASSERT(). \r | |
400 | \r | |
401 | @param[in] Guid Pointer to a 128-bit unique value that designates \r | |
402 | which namespace to retrieve a value from.\r | |
403 | @param[in] TokenNumber The PCD token number to retrieve a current value for.\r | |
404 | \r | |
405 | @return Return the size.\r | |
406 | \r | |
407 | **/\r | |
408 | UINTN\r | |
409 | EFIAPI\r | |
410 | LibPcdGetExSize (\r | |
411 | IN CONST GUID *Guid,\r | |
412 | IN UINTN TokenNumber\r | |
413 | )\r | |
414 | {\r | |
415 | ASSERT (Guid != NULL);\r | |
416 | \r | |
417 | return mPcd->GetSizeEx (Guid, TokenNumber);\r | |
418 | }\r | |
419 | \r | |
420 | \r | |
421 | \r | |
422 | /**\r | |
423 | This function provides a means by which to set a value for a given PCD token.\r | |
424 | \r | |
425 | Sets the 8-bit value for the token specified by TokenNumber \r | |
426 | to the value specified by Value. Value is returned.\r | |
427 | \r | |
428 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
429 | @param[in] Value The 8-bit value to set.\r | |
430 | \r | |
431 | @return Return the value been set.\r | |
432 | \r | |
433 | **/\r | |
434 | UINT8\r | |
435 | EFIAPI\r | |
436 | LibPcdSet8 (\r | |
437 | IN UINTN TokenNumber,\r | |
438 | IN UINT8 Value\r | |
439 | )\r | |
440 | {\r | |
441 | EFI_STATUS Status;\r | |
442 | \r | |
443 | Status = mPcd->Set8 (TokenNumber, Value);\r | |
444 | \r | |
445 | ASSERT_EFI_ERROR (Status);\r | |
446 | \r | |
447 | return Value;\r | |
448 | }\r | |
449 | \r | |
450 | \r | |
451 | \r | |
452 | /**\r | |
453 | This function provides a means by which to set a value for a given PCD token.\r | |
454 | \r | |
455 | Sets the 16-bit value for the token specified by TokenNumber \r | |
456 | to the value specified by Value. Value is returned.\r | |
457 | \r | |
458 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
459 | @param[in] Value The 16-bit value to set.\r | |
460 | \r | |
461 | @return Return the value been set.\r | |
462 | \r | |
463 | **/\r | |
464 | UINT16\r | |
465 | EFIAPI\r | |
466 | LibPcdSet16 (\r | |
467 | IN UINTN TokenNumber,\r | |
468 | IN UINT16 Value\r | |
469 | )\r | |
470 | {\r | |
471 | EFI_STATUS Status;\r | |
472 | \r | |
473 | Status = mPcd->Set16 (TokenNumber, Value);\r | |
474 | \r | |
475 | ASSERT_EFI_ERROR (Status);\r | |
476 | \r | |
477 | return Value;\r | |
478 | }\r | |
479 | \r | |
480 | \r | |
481 | \r | |
482 | /**\r | |
483 | This function provides a means by which to set a value for a given PCD token.\r | |
484 | \r | |
485 | Sets the 32-bit value for the token specified by TokenNumber \r | |
486 | to the value specified by Value. Value is returned.\r | |
487 | \r | |
488 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
489 | @param[in] Value The 32-bit value to set.\r | |
490 | \r | |
491 | @return Return the value been set.\r | |
492 | \r | |
493 | **/\r | |
494 | UINT32\r | |
495 | EFIAPI\r | |
496 | LibPcdSet32 (\r | |
497 | IN UINTN TokenNumber,\r | |
498 | IN UINT32 Value\r | |
499 | )\r | |
500 | {\r | |
501 | EFI_STATUS Status;\r | |
502 | Status = mPcd->Set32 (TokenNumber, Value);\r | |
503 | \r | |
504 | ASSERT_EFI_ERROR (Status);\r | |
505 | \r | |
506 | return Value;\r | |
507 | }\r | |
508 | \r | |
509 | \r | |
510 | \r | |
511 | /**\r | |
512 | This function provides a means by which to set a value for a given PCD token.\r | |
513 | \r | |
514 | Sets the 64-bit value for the token specified by TokenNumber \r | |
515 | to the value specified by Value. Value is returned.\r | |
516 | \r | |
517 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
518 | @param[in] Value The 64-bit value to set.\r | |
519 | \r | |
520 | @return Return the value been set.\r | |
521 | \r | |
522 | **/\r | |
523 | UINT64\r | |
524 | EFIAPI\r | |
525 | LibPcdSet64 (\r | |
526 | IN UINTN TokenNumber,\r | |
527 | IN UINT64 Value\r | |
528 | )\r | |
529 | {\r | |
530 | EFI_STATUS Status;\r | |
531 | \r | |
532 | Status = mPcd->Set64 (TokenNumber, Value);\r | |
533 | \r | |
534 | ASSERT_EFI_ERROR (Status);\r | |
535 | \r | |
536 | return Value;\r | |
537 | }\r | |
538 | \r | |
539 | \r | |
540 | \r | |
541 | /**\r | |
542 | This function provides a means by which to set a value for a given PCD token.\r | |
543 | \r | |
544 | Sets a buffer for the token specified by TokenNumber to the value \r | |
545 | specified by Buffer and SizeOfBuffer. Buffer is returned. \r | |
546 | If SizeOfBuffer is greater than the maximum size support by TokenNumber, \r | |
547 | then set SizeOfBuffer to the maximum size supported by TokenNumber and \r | |
548 | return NULL to indicate that the set operation was not actually performed. \r | |
549 | \r | |
550 | If SizeOfBuffer is set to MAX_ADDRESS, then SizeOfBuffer must be set to the \r | |
551 | maximum size supported by TokenName and NULL must be returned.\r | |
552 | \r | |
553 | If SizeOfBuffer is NULL, then ASSERT().\r | |
554 | If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r | |
555 | \r | |
556 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
557 | @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r | |
558 | @param[in] Buffer A pointer to the buffer to set.\r | |
559 | \r | |
560 | @return Return the pointer for the buffer been set.\r | |
561 | \r | |
562 | **/\r | |
563 | VOID *\r | |
564 | EFIAPI\r | |
565 | LibPcdSetPtr (\r | |
566 | IN UINTN TokenNumber,\r | |
567 | IN OUT UINTN *SizeOfBuffer,\r | |
568 | IN CONST VOID *Buffer\r | |
569 | )\r | |
570 | {\r | |
571 | EFI_STATUS Status;\r | |
572 | \r | |
573 | ASSERT (SizeOfBuffer != NULL);\r | |
574 | \r | |
575 | if (*SizeOfBuffer > 0) {\r | |
576 | ASSERT (Buffer != NULL);\r | |
577 | }\r | |
578 | \r | |
579 | Status = mPcd->SetPtr (TokenNumber, SizeOfBuffer, (VOID *) Buffer);\r | |
580 | \r | |
581 | if (EFI_ERROR (Status)) {\r | |
582 | return NULL;\r | |
583 | }\r | |
584 | \r | |
585 | return (VOID *) Buffer;\r | |
586 | }\r | |
587 | \r | |
588 | \r | |
589 | \r | |
590 | /**\r | |
591 | This function provides a means by which to set a value for a given PCD token.\r | |
592 | \r | |
593 | Sets the Boolean value for the token specified by TokenNumber \r | |
594 | to the value specified by Value. Value is returned.\r | |
595 | \r | |
596 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
597 | @param[in] Value The boolean value to set.\r | |
598 | \r | |
599 | @return Return the value been set.\r | |
600 | \r | |
601 | **/\r | |
602 | BOOLEAN\r | |
603 | EFIAPI\r | |
604 | LibPcdSetBool (\r | |
605 | IN UINTN TokenNumber,\r | |
606 | IN BOOLEAN Value\r | |
607 | )\r | |
608 | {\r | |
609 | EFI_STATUS Status;\r | |
610 | \r | |
611 | Status = mPcd->SetBool (TokenNumber, Value);\r | |
612 | \r | |
613 | ASSERT_EFI_ERROR (Status);\r | |
614 | \r | |
615 | return Value;\r | |
616 | }\r | |
617 | \r | |
618 | \r | |
619 | \r | |
620 | /**\r | |
621 | This function provides a means by which to set a value for a given PCD token.\r | |
622 | \r | |
623 | Sets the 8-bit value for the token specified by TokenNumber and \r | |
624 | Guid to the value specified by Value. Value is returned.\r | |
625 | \r | |
626 | If Guid is NULL, then ASSERT().\r | |
627 | \r | |
628 | @param[in] Guid Pointer to a 128-bit unique value that \r | |
629 | designates which namespace to set a value from.\r | |
630 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
631 | @param[in] Value The 8-bit value to set.\r | |
632 | \r | |
633 | @return Return the value been set.\r | |
634 | \r | |
635 | **/\r | |
636 | UINT8\r | |
637 | EFIAPI\r | |
638 | LibPcdSetEx8 (\r | |
639 | IN CONST GUID *Guid,\r | |
640 | IN UINTN TokenNumber,\r | |
641 | IN UINT8 Value\r | |
642 | )\r | |
643 | {\r | |
644 | EFI_STATUS Status;\r | |
645 | \r | |
646 | ASSERT (Guid != NULL);\r | |
647 | \r | |
648 | Status = mPcd->Set8Ex (Guid, TokenNumber, Value);\r | |
649 | \r | |
650 | ASSERT_EFI_ERROR (Status);\r | |
651 | \r | |
652 | return Value;\r | |
653 | }\r | |
654 | \r | |
655 | \r | |
656 | \r | |
657 | /**\r | |
658 | This function provides a means by which to set a value for a given PCD token.\r | |
659 | \r | |
660 | Sets the 16-bit value for the token specified by TokenNumber and \r | |
661 | Guid to the value specified by Value. Value is returned.\r | |
662 | \r | |
663 | If Guid is NULL, then ASSERT().\r | |
664 | \r | |
665 | @param[in] Guid Pointer to a 128-bit unique value that \r | |
666 | designates which namespace to set a value from.\r | |
667 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
668 | @param[in] Value The 16-bit value to set.\r | |
669 | \r | |
670 | @return Return the value been set.\r | |
671 | \r | |
672 | **/\r | |
673 | UINT16\r | |
674 | EFIAPI\r | |
675 | LibPcdSetEx16 (\r | |
676 | IN CONST GUID *Guid,\r | |
677 | IN UINTN TokenNumber,\r | |
678 | IN UINT16 Value\r | |
679 | )\r | |
680 | {\r | |
681 | EFI_STATUS Status;\r | |
682 | \r | |
683 | ASSERT (Guid != NULL);\r | |
684 | \r | |
685 | Status = mPcd->Set16Ex (Guid, TokenNumber, Value);\r | |
686 | \r | |
687 | ASSERT_EFI_ERROR (Status);\r | |
688 | \r | |
689 | return Value;\r | |
690 | }\r | |
691 | \r | |
692 | \r | |
693 | \r | |
694 | /**\r | |
695 | This function provides a means by which to set a value for a given PCD token.\r | |
696 | \r | |
697 | Sets the 32-bit value for the token specified by TokenNumber and \r | |
698 | Guid to the value specified by Value. Value is returned.\r | |
699 | \r | |
700 | If Guid is NULL, then ASSERT().\r | |
701 | \r | |
702 | @param[in] Guid Pointer to a 128-bit unique value that \r | |
703 | designates which namespace to set a value from.\r | |
704 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
705 | @param[in] Value The 32-bit value to set.\r | |
706 | \r | |
707 | @return Return the value been set.\r | |
708 | \r | |
709 | **/\r | |
710 | UINT32\r | |
711 | EFIAPI\r | |
712 | LibPcdSetEx32 (\r | |
713 | IN CONST GUID *Guid,\r | |
714 | IN UINTN TokenNumber,\r | |
715 | IN UINT32 Value\r | |
716 | )\r | |
717 | {\r | |
718 | EFI_STATUS Status;\r | |
719 | \r | |
720 | ASSERT (Guid != NULL);\r | |
721 | \r | |
722 | Status = mPcd->Set32Ex (Guid, TokenNumber, Value);\r | |
723 | \r | |
724 | ASSERT_EFI_ERROR (Status);\r | |
725 | \r | |
726 | return Value;\r | |
727 | }\r | |
728 | \r | |
729 | \r | |
730 | \r | |
731 | /**\r | |
732 | This function provides a means by which to set a value for a given PCD token.\r | |
733 | \r | |
734 | Sets the 64-bit value for the token specified by TokenNumber and \r | |
735 | Guid to the value specified by Value. Value is returned.\r | |
736 | If Guid is NULL, then ASSERT().\r | |
737 | \r | |
738 | @param[in] Guid Pointer to a 128-bit unique value that \r | |
739 | designates which namespace to set a value from.\r | |
740 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
741 | @param[in] Value The 64-bit value to set.\r | |
742 | \r | |
743 | @return Return the value been set.\r | |
744 | \r | |
745 | **/\r | |
746 | UINT64\r | |
747 | EFIAPI\r | |
748 | LibPcdSetEx64 (\r | |
749 | IN CONST GUID *Guid,\r | |
750 | IN UINTN TokenNumber,\r | |
751 | IN UINT64 Value\r | |
752 | )\r | |
753 | {\r | |
754 | EFI_STATUS Status;\r | |
755 | \r | |
756 | ASSERT (Guid != NULL);\r | |
757 | \r | |
758 | Status = mPcd->Set64Ex (Guid, TokenNumber, Value);\r | |
759 | \r | |
760 | ASSERT_EFI_ERROR (Status);\r | |
761 | \r | |
762 | return Value;\r | |
763 | }\r | |
764 | \r | |
765 | \r | |
766 | \r | |
767 | /**\r | |
768 | This function provides a means by which to set a value for a given PCD token.\r | |
769 | \r | |
770 | Sets a buffer for the token specified by TokenNumber to the value specified by \r | |
771 | Buffer and SizeOfBuffer. Buffer is returned. If SizeOfBuffer is greater than \r | |
772 | the maximum size support by TokenNumber, then set SizeOfBuffer to the maximum size \r | |
773 | supported by TokenNumber and return NULL to indicate that the set operation \r | |
774 | was not actually performed. \r | |
775 | \r | |
776 | If Guid is NULL, then ASSERT().\r | |
777 | If SizeOfBuffer is NULL, then ASSERT().\r | |
778 | If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r | |
779 | \r | |
780 | @param[in] Guid Pointer to a 128-bit unique value that \r | |
781 | designates which namespace to set a value from.\r | |
782 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
783 | @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r | |
784 | @param[in] Buffer A pointer to the buffer to set.\r | |
785 | \r | |
786 | @return Return the pinter to the buffer been set.\r | |
787 | \r | |
788 | **/\r | |
789 | VOID *\r | |
790 | EFIAPI\r | |
791 | LibPcdSetExPtr (\r | |
792 | IN CONST GUID *Guid,\r | |
793 | IN UINTN TokenNumber,\r | |
794 | IN OUT UINTN *SizeOfBuffer,\r | |
795 | IN VOID *Buffer\r | |
796 | )\r | |
797 | {\r | |
798 | EFI_STATUS Status;\r | |
799 | \r | |
800 | ASSERT (Guid != NULL);\r | |
801 | \r | |
802 | ASSERT (SizeOfBuffer != NULL);\r | |
803 | \r | |
804 | if (*SizeOfBuffer > 0) {\r | |
805 | ASSERT (Buffer != NULL);\r | |
806 | }\r | |
807 | \r | |
808 | Status = mPcd->SetPtrEx (Guid, TokenNumber, SizeOfBuffer, Buffer);\r | |
809 | \r | |
810 | if (EFI_ERROR (Status)) {\r | |
811 | return NULL;\r | |
812 | }\r | |
813 | \r | |
814 | return Buffer;\r | |
815 | }\r | |
816 | \r | |
817 | \r | |
818 | \r | |
819 | /**\r | |
820 | This function provides a means by which to set a value for a given PCD token.\r | |
821 | \r | |
822 | Sets the Boolean value for the token specified by TokenNumber and \r | |
823 | Guid to the value specified by Value. Value is returned.\r | |
824 | \r | |
825 | If Guid is NULL, then ASSERT().\r | |
826 | \r | |
827 | @param[in] Guid Pointer to a 128-bit unique value that \r | |
828 | designates which namespace to set a value from.\r | |
829 | @param[in] TokenNumber The PCD token number to set a current value for.\r | |
830 | @param[in] Value The Boolean value to set.\r | |
831 | \r | |
832 | @return Return the value been set.\r | |
833 | \r | |
834 | **/\r | |
835 | BOOLEAN\r | |
836 | EFIAPI\r | |
837 | LibPcdSetExBool (\r | |
838 | IN CONST GUID *Guid,\r | |
839 | IN UINTN TokenNumber,\r | |
840 | IN BOOLEAN Value\r | |
841 | )\r | |
842 | {\r | |
843 | EFI_STATUS Status;\r | |
844 | \r | |
845 | ASSERT (Guid != NULL);\r | |
846 | \r | |
847 | Status = mPcd->SetBoolEx (Guid, TokenNumber, Value);\r | |
848 | \r | |
849 | ASSERT_EFI_ERROR (Status);\r | |
850 | \r | |
851 | return Value;\r | |
852 | }\r | |
853 | \r | |
854 | \r | |
855 | \r | |
856 | /**\r | |
857 | Set up a notification function that is called when a specified token is set.\r | |
858 | \r | |
859 | When the token specified by TokenNumber and Guid is set, \r | |
860 | then notification function specified by NotificationFunction is called. \r | |
861 | If Guid is NULL, then the default token space is used.\r | |
862 | If NotificationFunction is NULL, then ASSERT().\r | |
863 | \r | |
864 | @param[in] Guid Pointer to a 128-bit unique value that designates which \r | |
865 | namespace to set a value from. If NULL, then the default \r | |
866 | token space is used.\r | |
867 | @param[in] TokenNumber The PCD token number to monitor.\r | |
868 | @param[in] NotificationFunction The function to call when the token \r | |
869 | specified by Guid and TokenNumber is set.\r | |
870 | \r | |
871 | **/\r | |
872 | VOID\r | |
873 | EFIAPI\r | |
874 | LibPcdCallbackOnSet (\r | |
875 | IN CONST GUID *Guid, OPTIONAL\r | |
876 | IN UINTN TokenNumber,\r | |
877 | IN PCD_CALLBACK NotificationFunction\r | |
878 | )\r | |
879 | {\r | |
880 | EFI_STATUS Status;\r | |
881 | \r | |
882 | ASSERT (NotificationFunction != NULL);\r | |
883 | \r | |
884 | Status = mPcd->CallbackOnSet (Guid, TokenNumber, NotificationFunction);\r | |
885 | \r | |
886 | ASSERT_EFI_ERROR (Status);\r | |
887 | \r | |
888 | return;\r | |
889 | }\r | |
890 | \r | |
891 | \r | |
892 | \r | |
893 | /**\r | |
894 | Disable a notification function that was established with LibPcdCallbackonSet().\r | |
895 | \r | |
896 | Disable a notification function that was previously established with LibPcdCallbackOnSet().\r | |
897 | If NotificationFunction is NULL, then ASSERT().\r | |
898 | If LibPcdCallbackOnSet() was not previously called with Guid, TokenNumber, \r | |
899 | and NotificationFunction, then ASSERT().\r | |
900 | \r | |
901 | @param[in] Guid Specify the GUID token space.\r | |
902 | @param[in] TokenNumber Specify the token number.\r | |
903 | @param[in] NotificationFunction The callback function to be unregistered.\r | |
904 | \r | |
905 | **/\r | |
906 | VOID\r | |
907 | EFIAPI\r | |
908 | LibPcdCancelCallback (\r | |
909 | IN CONST GUID *Guid, OPTIONAL\r | |
910 | IN UINTN TokenNumber,\r | |
911 | IN PCD_CALLBACK NotificationFunction\r | |
912 | )\r | |
913 | {\r | |
914 | EFI_STATUS Status;\r | |
915 | \r | |
916 | ASSERT (NotificationFunction != NULL);\r | |
917 | \r | |
918 | Status = mPcd->CancelCallback (Guid, TokenNumber, NotificationFunction);\r | |
919 | \r | |
920 | ASSERT_EFI_ERROR (Status);\r | |
921 | \r | |
922 | return;\r | |
923 | }\r | |
924 | \r | |
925 | \r | |
926 | \r | |
927 | /**\r | |
928 | Retrieves the next token in a token space.\r | |
929 | \r | |
930 | Retrieves the next PCD token number from the token space specified by Guid. \r | |
931 | If Guid is NULL, then the default token space is used. If TokenNumber is 0, \r | |
932 | then the first token number is returned. Otherwise, the token number that \r | |
933 | follows TokenNumber in the token space is returned. If TokenNumber is the last \r | |
934 | token number in the token space, then 0 is returned. \r | |
935 | \r | |
936 | If TokenNumber is not 0 and is not in the token space specified by Guid, then ASSERT().\r | |
937 | \r | |
938 | @param[in] Guid Pointer to a 128-bit unique value that designates which namespace \r | |
939 | to set a value from. If NULL, then the default token space is used.\r | |
940 | @param[in] TokenNumber The previous PCD token number. If 0, then retrieves the first PCD \r | |
941 | token number.\r | |
942 | \r | |
943 | @return The next valid token number.\r | |
944 | \r | |
945 | **/\r | |
946 | UINTN \r | |
947 | EFIAPI\r | |
948 | LibPcdGetNextToken (\r | |
949 | IN CONST GUID *Guid, OPTIONAL\r | |
950 | IN UINTN TokenNumber\r | |
951 | )\r | |
952 | {\r | |
953 | EFI_STATUS Status;\r | |
954 | \r | |
955 | Status = mPcd->GetNextToken (Guid, &TokenNumber);\r | |
956 | \r | |
957 | ASSERT_EFI_ERROR (Status);\r | |
958 | \r | |
959 | return TokenNumber;\r | |
960 | }\r | |
961 | \r | |
962 | \r | |
963 | \r | |
964 | /**\r | |
965 | Used to retrieve the list of available PCD token space GUIDs.\r | |
966 | \r | |
967 | Returns the PCD token space GUID that follows TokenSpaceGuid in the list of token spaces\r | |
968 | in the platform.\r | |
969 | If TokenSpaceGuid is NULL, then a pointer to the first PCD token spaces returned.\r | |
970 | If TokenSpaceGuid is the last PCD token space GUID in the list, then NULL is returned.\r | |
971 | \r | |
972 | @param TokenSpaceGuid Pointer to the a PCD token space GUID\r | |
973 | \r | |
974 | @return The next valid token namespace.\r | |
975 | \r | |
976 | **/\r | |
977 | GUID *\r | |
978 | EFIAPI\r | |
979 | LibPcdGetNextTokenSpace (\r | |
980 | IN CONST GUID *TokenSpaceGuid\r | |
981 | )\r | |
982 | {\r | |
983 | EFI_STATUS Status;\r | |
984 | \r | |
985 | Status = mPcd->GetNextTokenSpace (&TokenSpaceGuid);\r | |
986 | \r | |
987 | ASSERT_EFI_ERROR (Status);\r | |
988 | \r | |
989 | return (GUID *) TokenSpaceGuid;\r | |
990 | }\r | |
991 | \r | |
992 | \r | |
993 | /**\r | |
994 | Sets a value of a patchable PCD entry that is type pointer.\r | |
995 | \r | |
996 | Sets the PCD entry specified by PatchVariable to the value specified by Buffer \r | |
997 | and SizeOfBuffer. Buffer is returned. If SizeOfBuffer is greater than \r | |
998 | MaximumDatumSize, then set SizeOfBuffer to MaximumDatumSize and return \r | |
999 | NULL to indicate that the set operation was not actually performed. \r | |
1000 | If SizeOfBuffer is set to MAX_ADDRESS, then SizeOfBuffer must be set to \r | |
1001 | MaximumDatumSize and NULL must be returned.\r | |
1002 | \r | |
1003 | If PatchVariable is NULL, then ASSERT().\r | |
1004 | If SizeOfBuffer is NULL, then ASSERT().\r | |
1005 | If SizeOfBuffer > 0 and Buffer is NULL, then ASSERT().\r | |
1006 | \r | |
1007 | @param[in] PatchVariable A pointer to the global variable in a module that is \r | |
1008 | the target of the set operation.\r | |
1009 | @param[in] MaximumDatumSize The maximum size allowed for the PCD entry specified by PatchVariable.\r | |
1010 | @param[in, out] SizeOfBuffer A pointer to the size, in bytes, of Buffer.\r | |
1011 | @param[in] Buffer A pointer to the buffer to used to set the target variable.\r | |
1012 | \r | |
1013 | @return Return the pointer to the buffer been set.\r | |
1014 | \r | |
1015 | **/\r | |
1016 | VOID *\r | |
1017 | EFIAPI\r | |
1018 | LibPatchPcdSetPtr (\r | |
1019 | IN VOID *PatchVariable,\r | |
1020 | IN UINTN MaximumDatumSize,\r | |
1021 | IN OUT UINTN *SizeOfBuffer,\r | |
1022 | IN CONST VOID *Buffer\r | |
1023 | )\r | |
1024 | {\r | |
1025 | ASSERT (PatchVariable != NULL);\r | |
1026 | ASSERT (SizeOfBuffer != NULL);\r | |
1027 | \r | |
1028 | if (*SizeOfBuffer > 0) {\r | |
1029 | ASSERT (Buffer != NULL);\r | |
1030 | }\r | |
1031 | \r | |
1032 | if ((*SizeOfBuffer > MaximumDatumSize) ||\r | |
1033 | (*SizeOfBuffer == MAX_ADDRESS)) {\r | |
1034 | *SizeOfBuffer = MaximumDatumSize;\r | |
1035 | return NULL;\r | |
1036 | }\r | |
1037 | \r | |
1038 | CopyMem (PatchVariable, Buffer, *SizeOfBuffer);\r | |
1039 | \r | |
1040 | return (VOID *) Buffer;\r | |
1041 | }\r | |
1042 | \r | |
1043 | \r | |
1044 | \r |