52e1905d |
1 | /** @file PCD PEIM\r |
878ddf1f |
2 | \r |
3 | Copyright (c) 2006, Intel Corporation \r |
4 | All rights reserved. This program and the accompanying materials \r |
5 | are licensed and made available under the terms and conditions of the BSD License \r |
6 | which accompanies this distribution. The full text of the license may be found at \r |
7 | http://opensource.org/licenses/bsd-license.php \r |
8 | \r |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
11 | \r |
12 | \r |
13 | Module Name: Pcd.c\r |
14 | \r |
15 | **/\r |
16 | \r |
878ddf1f |
17 | #include "Service.h"\r |
18 | \r |
19 | \r |
20 | PCD_PPI mPcdPpiInstance = {\r |
21 | PeiPcdSetSku,\r |
22 | \r |
23 | PeiPcdGet8,\r |
24 | PeiPcdGet16, \r |
25 | PeiPcdGet32, \r |
26 | PeiPcdGet64, \r |
27 | PeiPcdGetPtr, \r |
28 | PeiPcdGetBool, \r |
29 | PeiPcdGetSize,\r |
30 | \r |
31 | PeiPcdGet8Ex,\r |
32 | PeiPcdGet16Ex, \r |
33 | PeiPcdGet32Ex, \r |
34 | PeiPcdGet64Ex, \r |
35 | PeiPcdGetPtrEx, \r |
36 | PeiPcdGetBoolEx, \r |
37 | PeiPcdGetSizeEx,\r |
38 | \r |
39 | PeiPcdSet8,\r |
40 | PeiPcdSet16, \r |
41 | PeiPcdSet32, \r |
42 | PeiPcdSet64, \r |
43 | PeiPcdSetPtr, \r |
44 | PeiPcdSetBool, \r |
45 | \r |
46 | PeiPcdSet8Ex,\r |
47 | PeiPcdSet16Ex, \r |
48 | PeiPcdSet32Ex, \r |
49 | PeiPcdSet64Ex, \r |
50 | PeiPcdSetPtrEx, \r |
51 | PeiPcdSetBoolEx,\r |
52 | \r |
4c114006 |
53 | PeiRegisterCallBackOnSet,\r |
878ddf1f |
54 | PcdUnRegisterCallBackOnSet,\r |
4276d5da |
55 | PeiPcdGetNextToken,\r |
56 | PeiPcdGetNextTokenSpace\r |
878ddf1f |
57 | };\r |
58 | \r |
59 | \r |
60 | \r |
61 | STATIC EFI_PEI_PPI_DESCRIPTOR mPpiPCD = {\r |
62 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r |
63 | &gPcdPpiGuid,\r |
64 | &mPcdPpiInstance\r |
65 | };\r |
66 | \r |
67 | \r |
68 | \r |
69 | EFI_STATUS\r |
70 | EFIAPI\r |
71 | PcdPeimInit (\r |
72 | IN EFI_FFS_FILE_HEADER *FfsHeader,\r |
73 | IN EFI_PEI_SERVICES **PeiServices\r |
74 | )\r |
75 | {\r |
76 | EFI_STATUS Status;\r |
878ddf1f |
77 | \r |
52e1905d |
78 | BuildPcdDatabase ();\r |
79 | \r |
84a99d48 |
80 | Status = PeiServicesInstallPpi (&mPpiPCD);\r |
878ddf1f |
81 | \r |
82 | ASSERT_EFI_ERROR (Status);\r |
83 | \r |
84 | return EFI_SUCCESS;\r |
85 | }\r |
86 | \r |
00b7af13 |
87 | VOID\r |
878ddf1f |
88 | EFIAPI\r |
89 | PeiPcdSetSku (\r |
8a43e8dd |
90 | IN UINTN SkuId\r |
878ddf1f |
91 | )\r |
92 | {\r |
878ddf1f |
93 | \r |
8a43e8dd |
94 | GetPcdDatabase()->Init.SystemSkuId = (SKU_ID) SkuId;\r |
878ddf1f |
95 | \r |
00b7af13 |
96 | return;\r |
878ddf1f |
97 | }\r |
98 | \r |
99 | \r |
100 | \r |
101 | UINT8\r |
102 | EFIAPI\r |
103 | PeiPcdGet8 (\r |
8a43e8dd |
104 | IN UINTN TokenNumber\r |
878ddf1f |
105 | )\r |
106 | {\r |
52e1905d |
107 | return *((UINT8 *) GetWorker (TokenNumber, sizeof (UINT8)));\r |
878ddf1f |
108 | }\r |
109 | \r |
110 | \r |
111 | \r |
112 | UINT16\r |
113 | EFIAPI\r |
114 | PeiPcdGet16 (\r |
8a43e8dd |
115 | IN UINTN TokenNumber\r |
878ddf1f |
116 | )\r |
117 | {\r |
52e1905d |
118 | return ReadUnaligned16 (GetWorker (TokenNumber, sizeof (UINT16)));\r |
878ddf1f |
119 | }\r |
120 | \r |
121 | \r |
122 | \r |
123 | UINT32\r |
124 | EFIAPI\r |
125 | PeiPcdGet32 (\r |
8a43e8dd |
126 | IN UINTN TokenNumber\r |
878ddf1f |
127 | )\r |
128 | {\r |
52e1905d |
129 | return ReadUnaligned32 (GetWorker (TokenNumber, sizeof (UINT32)));\r |
878ddf1f |
130 | }\r |
131 | \r |
132 | \r |
133 | \r |
134 | UINT64\r |
135 | EFIAPI\r |
136 | PeiPcdGet64 (\r |
8a43e8dd |
137 | IN UINTN TokenNumber\r |
878ddf1f |
138 | )\r |
139 | {\r |
52e1905d |
140 | return ReadUnaligned64 (GetWorker (TokenNumber, sizeof (UINT64)));\r |
878ddf1f |
141 | }\r |
142 | \r |
143 | \r |
144 | \r |
145 | VOID *\r |
146 | EFIAPI\r |
147 | PeiPcdGetPtr (\r |
8a43e8dd |
148 | IN UINTN TokenNumber\r |
878ddf1f |
149 | )\r |
150 | {\r |
52e1905d |
151 | return GetWorker (TokenNumber, 0);\r |
878ddf1f |
152 | }\r |
153 | \r |
154 | \r |
155 | \r |
156 | BOOLEAN\r |
157 | EFIAPI\r |
158 | PeiPcdGetBool (\r |
8a43e8dd |
159 | IN UINTN TokenNumber\r |
878ddf1f |
160 | )\r |
161 | {\r |
52e1905d |
162 | return *((BOOLEAN *) GetWorker (TokenNumber, sizeof (BOOLEAN)));\r |
878ddf1f |
163 | }\r |
164 | \r |
165 | \r |
166 | \r |
167 | UINTN\r |
168 | EFIAPI\r |
169 | PeiPcdGetSize (\r |
8a43e8dd |
170 | IN UINTN TokenNumber\r |
878ddf1f |
171 | )\r |
172 | {\r |
1de04b4f |
173 | PEI_PCD_DATABASE *PeiPcdDb;\r |
174 | UINTN Size;\r |
175 | UINTN MaxSize;\r |
176 | \r |
177 | PeiPcdDb = GetPcdDatabase ();\r |
58f1099f |
178 | //\r |
179 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r |
180 | // We have to decrement TokenNumber by 1 to make it usable\r |
181 | // as the array index.\r |
182 | //\r |
183 | TokenNumber--;\r |
184 | \r |
52e1905d |
185 | ASSERT (TokenNumber < PEI_LOCAL_TOKEN_NUMBER);\r |
186 | \r |
1de04b4f |
187 | Size = (PeiPcdDb->Init.LocalTokenNumberTable[TokenNumber] & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r |
188 | \r |
189 | if (Size == 0) {\r |
190 | //\r |
191 | // For pointer type, we need to scan the SIZE_TABLE to get the current size.\r |
192 | //\r |
193 | return GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r |
194 | } else {\r |
195 | return Size;\r |
196 | }\r |
197 | \r |
878ddf1f |
198 | }\r |
199 | \r |
200 | \r |
201 | \r |
202 | UINT8\r |
203 | EFIAPI\r |
204 | PeiPcdGet8Ex (\r |
205 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
206 | IN UINTN ExTokenNumber\r |
878ddf1f |
207 | )\r |
208 | {\r |
52e1905d |
209 | return *((UINT8 *) ExGetWorker (Guid, ExTokenNumber, sizeof (UINT8)));\r |
878ddf1f |
210 | }\r |
211 | \r |
212 | \r |
213 | \r |
214 | UINT16\r |
215 | EFIAPI\r |
216 | PeiPcdGet16Ex (\r |
217 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
218 | IN UINTN ExTokenNumber\r |
878ddf1f |
219 | )\r |
220 | {\r |
52e1905d |
221 | return ReadUnaligned16 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT16)));\r |
878ddf1f |
222 | }\r |
223 | \r |
224 | \r |
225 | \r |
226 | UINT32\r |
227 | EFIAPI\r |
228 | PeiPcdGet32Ex (\r |
229 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
230 | IN UINTN ExTokenNumber\r |
878ddf1f |
231 | )\r |
232 | {\r |
52e1905d |
233 | return ReadUnaligned32 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT32)));\r |
878ddf1f |
234 | }\r |
235 | \r |
236 | \r |
237 | \r |
238 | UINT64\r |
239 | EFIAPI\r |
240 | PeiPcdGet64Ex (\r |
241 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
242 | IN UINTN ExTokenNumber\r |
878ddf1f |
243 | )\r |
244 | {\r |
52e1905d |
245 | return ReadUnaligned64 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT64)));\r |
878ddf1f |
246 | }\r |
247 | \r |
248 | \r |
249 | \r |
250 | VOID *\r |
251 | EFIAPI\r |
252 | PeiPcdGetPtrEx (\r |
253 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
254 | IN UINTN ExTokenNumber\r |
878ddf1f |
255 | )\r |
256 | {\r |
52e1905d |
257 | return ExGetWorker (Guid, ExTokenNumber, 0);\r |
878ddf1f |
258 | }\r |
259 | \r |
260 | \r |
261 | \r |
262 | BOOLEAN\r |
263 | EFIAPI\r |
264 | PeiPcdGetBoolEx (\r |
265 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
266 | IN UINTN ExTokenNumber\r |
878ddf1f |
267 | )\r |
268 | {\r |
52e1905d |
269 | return *((BOOLEAN *) ExGetWorker (Guid, ExTokenNumber, sizeof (BOOLEAN)));\r |
878ddf1f |
270 | }\r |
271 | \r |
272 | \r |
273 | \r |
274 | UINTN\r |
275 | EFIAPI\r |
276 | PeiPcdGetSizeEx (\r |
277 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
278 | IN UINTN ExTokenNumber\r |
878ddf1f |
279 | )\r |
280 | {\r |
9d6d8b24 |
281 | return PeiPcdGetSize (GetExPcdTokenNumber (Guid, ExTokenNumber));\r |
878ddf1f |
282 | }\r |
283 | \r |
284 | \r |
285 | \r |
286 | EFI_STATUS\r |
287 | EFIAPI\r |
288 | PeiPcdSet8 (\r |
8a43e8dd |
289 | IN UINTN TokenNumber,\r |
1de04b4f |
290 | IN UINT8 Value\r |
878ddf1f |
291 | )\r |
292 | {\r |
1de04b4f |
293 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
294 | }\r |
295 | \r |
296 | \r |
297 | \r |
298 | EFI_STATUS\r |
299 | EFIAPI\r |
300 | PeiPcdSet16 (\r |
1de04b4f |
301 | IN UINTN TokenNumber,\r |
302 | IN UINT16 Value\r |
878ddf1f |
303 | )\r |
304 | {\r |
1de04b4f |
305 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
306 | }\r |
307 | \r |
308 | \r |
309 | \r |
310 | EFI_STATUS\r |
311 | EFIAPI\r |
312 | PeiPcdSet32 (\r |
1de04b4f |
313 | IN UINTN TokenNumber,\r |
314 | IN UINT32 Value\r |
878ddf1f |
315 | )\r |
316 | {\r |
1de04b4f |
317 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
318 | }\r |
319 | \r |
320 | \r |
321 | \r |
322 | EFI_STATUS\r |
323 | EFIAPI\r |
324 | PeiPcdSet64 (\r |
1de04b4f |
325 | IN UINTN TokenNumber,\r |
326 | IN UINT64 Value\r |
878ddf1f |
327 | )\r |
328 | {\r |
1de04b4f |
329 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
330 | }\r |
331 | \r |
332 | \r |
333 | EFI_STATUS\r |
334 | EFIAPI\r |
335 | PeiPcdSetPtr (\r |
1de04b4f |
336 | IN UINTN TokenNumber,\r |
337 | IN OUT UINTN *SizeOfBuffer,\r |
338 | IN VOID *Buffer\r |
878ddf1f |
339 | )\r |
340 | {\r |
00b7af13 |
341 | return SetWorker (TokenNumber, Buffer, SizeOfBuffer, TRUE);\r |
878ddf1f |
342 | }\r |
343 | \r |
344 | \r |
345 | \r |
346 | EFI_STATUS\r |
347 | EFIAPI\r |
348 | PeiPcdSetBool (\r |
1de04b4f |
349 | IN UINTN TokenNumber,\r |
350 | IN BOOLEAN Value\r |
878ddf1f |
351 | )\r |
352 | {\r |
1de04b4f |
353 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
354 | }\r |
355 | \r |
356 | \r |
357 | \r |
358 | EFI_STATUS\r |
359 | EFIAPI\r |
360 | PeiPcdSet8Ex (\r |
361 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
362 | IN UINTN ExTokenNumber,\r |
878ddf1f |
363 | IN UINT8 Value\r |
364 | )\r |
365 | {\r |
1de04b4f |
366 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
367 | }\r |
368 | \r |
369 | \r |
370 | \r |
371 | EFI_STATUS\r |
372 | EFIAPI\r |
373 | PeiPcdSet16Ex (\r |
374 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
375 | IN UINTN ExTokenNumber,\r |
878ddf1f |
376 | IN UINT16 Value\r |
377 | )\r |
378 | {\r |
1de04b4f |
379 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
380 | }\r |
381 | \r |
382 | \r |
383 | \r |
384 | EFI_STATUS\r |
385 | EFIAPI\r |
386 | PeiPcdSet32Ex (\r |
387 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
388 | IN UINTN ExTokenNumber,\r |
878ddf1f |
389 | IN UINT32 Value\r |
390 | )\r |
391 | {\r |
1de04b4f |
392 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
393 | }\r |
394 | \r |
395 | \r |
396 | \r |
397 | EFI_STATUS\r |
398 | EFIAPI\r |
399 | PeiPcdSet64Ex (\r |
400 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
401 | IN UINTN ExTokenNumber,\r |
878ddf1f |
402 | IN UINT64 Value\r |
403 | )\r |
404 | {\r |
1de04b4f |
405 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
406 | }\r |
407 | \r |
408 | \r |
409 | \r |
410 | EFI_STATUS\r |
411 | EFIAPI\r |
412 | PeiPcdSetPtrEx (\r |
413 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
414 | IN UINTN ExTokenNumber,\r |
1de04b4f |
415 | IN UINTN *SizeOfBuffer,\r |
00b7af13 |
416 | IN VOID *Value\r |
878ddf1f |
417 | )\r |
418 | {\r |
1de04b4f |
419 | return ExSetWorker (ExTokenNumber, Guid, Value, SizeOfBuffer, TRUE);\r |
878ddf1f |
420 | }\r |
421 | \r |
422 | \r |
423 | \r |
424 | EFI_STATUS\r |
425 | EFIAPI\r |
426 | PeiPcdSetBoolEx (\r |
427 | IN CONST EFI_GUID *Guid,\r |
8a43e8dd |
428 | IN UINTN ExTokenNumber,\r |
878ddf1f |
429 | IN BOOLEAN Value\r |
430 | )\r |
431 | {\r |
1de04b4f |
432 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
433 | }\r |
434 | \r |
435 | \r |
436 | \r |
437 | \r |
438 | EFI_STATUS\r |
439 | EFIAPI\r |
4c114006 |
440 | PeiRegisterCallBackOnSet (\r |
8a43e8dd |
441 | IN UINTN ExTokenNumber,\r |
878ddf1f |
442 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
443 | IN PCD_PPI_CALLBACK CallBackFunction\r |
444 | )\r |
445 | {\r |
4c114006 |
446 | ASSERT (CallBackFunction != NULL);\r |
447 | \r |
52e1905d |
448 | return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, TRUE);\r |
878ddf1f |
449 | }\r |
450 | \r |
451 | \r |
452 | \r |
453 | EFI_STATUS\r |
454 | EFIAPI\r |
455 | PcdUnRegisterCallBackOnSet (\r |
8a43e8dd |
456 | IN UINTN ExTokenNumber,\r |
878ddf1f |
457 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
458 | IN PCD_PPI_CALLBACK CallBackFunction\r |
459 | )\r |
460 | {\r |
4c114006 |
461 | ASSERT (CallBackFunction != NULL);\r |
462 | \r |
52e1905d |
463 | return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, FALSE);\r |
878ddf1f |
464 | }\r |
465 | \r |
466 | \r |
467 | \r |
468 | EFI_STATUS\r |
469 | EFIAPI\r |
470 | PeiPcdGetNextToken (\r |
471 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
8a43e8dd |
472 | IN OUT UINTN *TokenNumber\r |
878ddf1f |
473 | )\r |
474 | {\r |
00b7af13 |
475 | UINTN GuidTableIdx;\r |
476 | PEI_PCD_DATABASE *PeiPcdDb;\r |
477 | EFI_GUID *MatchGuid;\r |
478 | DYNAMICEX_MAPPING *ExMapTable;\r |
479 | UINTN i;\r |
480 | BOOLEAN Found;\r |
481 | \r |
52e1905d |
482 | if (Guid == NULL) {\r |
2b21a971 |
483 | if (*TokenNumber > PEI_NEX_TOKEN_NUMBER) {\r |
484 | return EFI_NOT_FOUND;\r |
485 | }\r |
b560bb65 |
486 | (*TokenNumber)++;\r |
c24ba2f6 |
487 | if (*TokenNumber > PEI_NEX_TOKEN_NUMBER) {\r |
0653eb89 |
488 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
52e1905d |
489 | }\r |
c24ba2f6 |
490 | return EFI_SUCCESS;\r |
00b7af13 |
491 | } else {\r |
00b7af13 |
492 | if (PEI_EXMAP_TABLE_EMPTY) {\r |
0653eb89 |
493 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
c24ba2f6 |
494 | return EFI_SUCCESS;\r |
00b7af13 |
495 | }\r |
496 | \r |
497 | //\r |
498 | // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order\r |
499 | // 1) ExGuid\r |
500 | // 2) ExTokenNumber\r |
501 | //\r |
502 | PeiPcdDb = GetPcdDatabase ();\r |
503 | \r |
504 | MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), Guid);\r |
505 | \r |
506 | if (MatchGuid == NULL) {\r |
c24ba2f6 |
507 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
00b7af13 |
508 | return EFI_NOT_FOUND;\r |
509 | }\r |
510 | \r |
511 | GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;\r |
512 | \r |
513 | ExMapTable = PeiPcdDb->Init.ExMapTable;\r |
514 | \r |
515 | Found = FALSE;\r |
c24ba2f6 |
516 | //\r |
517 | // Locate the GUID in ExMapTable first.\r |
518 | //\r |
00b7af13 |
519 | for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
520 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
521 | Found = TRUE;\r |
522 | break;\r |
523 | }\r |
524 | }\r |
525 | \r |
526 | if (Found) {\r |
527 | if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
528 | *TokenNumber = ExMapTable[i].ExTokenNumber;\r |
529 | return EFI_SUCCESS;\r |
530 | }\r |
c24ba2f6 |
531 | \r |
532 | for ( ; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
00b7af13 |
533 | if (ExMapTable[i].ExTokenNumber == *TokenNumber) {\r |
534 | i++;\r |
c24ba2f6 |
535 | if (i == PEI_EXMAPPING_TABLE_SIZE) {\r |
536 | //\r |
537 | // Exceed the length of ExMap Table\r |
538 | //\r |
539 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
540 | return EFI_SUCCESS;\r |
541 | }\r |
00b7af13 |
542 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
543 | *TokenNumber = ExMapTable[i].ExTokenNumber;\r |
544 | return EFI_SUCCESS;\r |
545 | } else {\r |
c24ba2f6 |
546 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
00b7af13 |
547 | return EFI_SUCCESS;\r |
548 | }\r |
549 | }\r |
550 | }\r |
00b7af13 |
551 | return EFI_NOT_FOUND;\r |
552 | }\r |
00b7af13 |
553 | }\r |
554 | \r |
c24ba2f6 |
555 | return EFI_NOT_FOUND;\r |
00b7af13 |
556 | }\r |
557 | \r |
1de04b4f |
558 | \r |
559 | \r |
58f1099f |
560 | EFI_STATUS\r |
00b7af13 |
561 | EFIAPI\r |
4276d5da |
562 | PeiPcdGetNextTokenSpace (\r |
58f1099f |
563 | IN OUT CONST EFI_GUID **Guid\r |
00b7af13 |
564 | )\r |
565 | {\r |
566 | UINTN GuidTableIdx;\r |
567 | EFI_GUID *MatchGuid;\r |
568 | PEI_PCD_DATABASE *PeiPcdDb;\r |
569 | DYNAMICEX_MAPPING *ExMapTable;\r |
570 | UINTN i;\r |
571 | BOOLEAN Found;\r |
572 | \r |
4276d5da |
573 | ASSERT (Guid != NULL);\r |
574 | \r |
575 | if (PEI_EXMAP_TABLE_EMPTY) {\r |
576 | if (*Guid != NULL) {\r |
577 | return EFI_NOT_FOUND;\r |
58f1099f |
578 | } else {\r |
58f1099f |
579 | return EFI_SUCCESS;\r |
580 | }\r |
4276d5da |
581 | }\r |
52e1905d |
582 | \r |
583 | //\r |
00b7af13 |
584 | // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order\r |
585 | // 1) ExGuid\r |
586 | // 2) ExTokenNumber\r |
52e1905d |
587 | //\r |
00b7af13 |
588 | PeiPcdDb = GetPcdDatabase ();\r |
52e1905d |
589 | \r |
4276d5da |
590 | ExMapTable = PeiPcdDb->Init.ExMapTable;\r |
591 | \r |
592 | if (*Guid == NULL) {\r |
593 | //\r |
594 | // return the first Token Space Guid.\r |
595 | //\r |
596 | *Guid = &PeiPcdDb->Init.GuidTable[ExMapTable[0].ExGuidIndex];\r |
597 | return EFI_SUCCESS;\r |
598 | }\r |
599 | \r |
58f1099f |
600 | MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), *Guid);\r |
00b7af13 |
601 | \r |
602 | if (MatchGuid == NULL) {\r |
58f1099f |
603 | return EFI_NOT_FOUND;\r |
00b7af13 |
604 | }\r |
605 | \r |
606 | GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;\r |
878ddf1f |
607 | \r |
00b7af13 |
608 | Found = FALSE;\r |
609 | for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
610 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
611 | Found = TRUE;\r |
612 | break;\r |
613 | }\r |
614 | }\r |
615 | \r |
616 | if (Found) {\r |
4276d5da |
617 | i++;\r |
00b7af13 |
618 | for ( ; i < PEI_EXMAPPING_TABLE_SIZE; i++ ) {\r |
619 | if (ExMapTable[i].ExGuidIndex != GuidTableIdx ) {\r |
58f1099f |
620 | *Guid = &PeiPcdDb->Init.GuidTable[ExMapTable[i].ExGuidIndex];\r |
621 | return EFI_SUCCESS;\r |
00b7af13 |
622 | }\r |
623 | }\r |
4276d5da |
624 | *Guid = NULL;\r |
625 | return EFI_SUCCESS;\r |
00b7af13 |
626 | }\r |
627 | \r |
58f1099f |
628 | return EFI_NOT_FOUND;\r |
00b7af13 |
629 | \r |
630 | }\r |
878ddf1f |
631 | \r |