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 |
5f5f28c9 |
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 |
5f5f28c9 |
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 |
5f5f28c9 |
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 |
5f5f28c9 |
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 |
5f5f28c9 |
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 |
5f5f28c9 |
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 |
5f5f28c9 |
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 |
5f5f28c9 |
177 | //\r |
178 | // If DebugAssertEnabled is TRUE, we still need to provide the GET size\r |
179 | // function as GetWorker and SetWoker need this function to do ASSERT.\r |
180 | //\r |
181 | if ((!FeaturePcdGet(PcdPeiPcdDatabaseGetSizeEnabled)) &&\r |
182 | (!DebugAssertEnabled ())) {\r |
183 | return 0;\r |
f89f5802 |
184 | }\r |
185 | \r |
1de04b4f |
186 | PeiPcdDb = GetPcdDatabase ();\r |
58f1099f |
187 | //\r |
188 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r |
189 | // We have to decrement TokenNumber by 1 to make it usable\r |
190 | // as the array index.\r |
191 | //\r |
192 | TokenNumber--;\r |
193 | \r |
4f914125 |
194 | // EBC compiler is very choosy. It may report warning about comparison\r |
195 | // between UINTN and 0 . So we add 1 in each size of the \r |
196 | // comparison.\r |
197 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r |
52e1905d |
198 | \r |
1de04b4f |
199 | Size = (PeiPcdDb->Init.LocalTokenNumberTable[TokenNumber] & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r |
200 | \r |
201 | if (Size == 0) {\r |
202 | //\r |
203 | // For pointer type, we need to scan the SIZE_TABLE to get the current size.\r |
204 | //\r |
205 | return GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r |
206 | } else {\r |
207 | return Size;\r |
208 | }\r |
209 | \r |
878ddf1f |
210 | }\r |
211 | \r |
212 | \r |
213 | \r |
214 | UINT8\r |
215 | EFIAPI\r |
216 | PeiPcdGet8Ex (\r |
5f5f28c9 |
217 | IN CONST EFI_GUID *Guid,\r |
218 | IN UINTN ExTokenNumber\r |
878ddf1f |
219 | )\r |
220 | {\r |
52e1905d |
221 | return *((UINT8 *) ExGetWorker (Guid, ExTokenNumber, sizeof (UINT8)));\r |
878ddf1f |
222 | }\r |
223 | \r |
224 | \r |
225 | \r |
226 | UINT16\r |
227 | EFIAPI\r |
228 | PeiPcdGet16Ex (\r |
5f5f28c9 |
229 | IN CONST EFI_GUID *Guid,\r |
230 | IN UINTN ExTokenNumber\r |
878ddf1f |
231 | )\r |
232 | {\r |
52e1905d |
233 | return ReadUnaligned16 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT16)));\r |
878ddf1f |
234 | }\r |
235 | \r |
236 | \r |
237 | \r |
238 | UINT32\r |
239 | EFIAPI\r |
240 | PeiPcdGet32Ex (\r |
5f5f28c9 |
241 | IN CONST EFI_GUID *Guid,\r |
242 | IN UINTN ExTokenNumber\r |
878ddf1f |
243 | )\r |
244 | {\r |
52e1905d |
245 | return ReadUnaligned32 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT32)));\r |
878ddf1f |
246 | }\r |
247 | \r |
248 | \r |
249 | \r |
250 | UINT64\r |
251 | EFIAPI\r |
252 | PeiPcdGet64Ex (\r |
5f5f28c9 |
253 | IN CONST EFI_GUID *Guid,\r |
254 | IN UINTN ExTokenNumber\r |
878ddf1f |
255 | )\r |
256 | {\r |
52e1905d |
257 | return ReadUnaligned64 (ExGetWorker (Guid, ExTokenNumber, sizeof (UINT64)));\r |
878ddf1f |
258 | }\r |
259 | \r |
260 | \r |
261 | \r |
262 | VOID *\r |
263 | EFIAPI\r |
264 | PeiPcdGetPtrEx (\r |
5f5f28c9 |
265 | IN CONST EFI_GUID *Guid,\r |
266 | IN UINTN ExTokenNumber\r |
878ddf1f |
267 | )\r |
268 | {\r |
52e1905d |
269 | return ExGetWorker (Guid, ExTokenNumber, 0);\r |
878ddf1f |
270 | }\r |
271 | \r |
272 | \r |
273 | \r |
274 | BOOLEAN\r |
275 | EFIAPI\r |
276 | PeiPcdGetBoolEx (\r |
5f5f28c9 |
277 | IN CONST EFI_GUID *Guid,\r |
278 | IN UINTN ExTokenNumber\r |
878ddf1f |
279 | )\r |
280 | {\r |
52e1905d |
281 | return *((BOOLEAN *) ExGetWorker (Guid, ExTokenNumber, sizeof (BOOLEAN)));\r |
878ddf1f |
282 | }\r |
283 | \r |
284 | \r |
285 | \r |
286 | UINTN\r |
287 | EFIAPI\r |
288 | PeiPcdGetSizeEx (\r |
5f5f28c9 |
289 | IN CONST EFI_GUID *Guid,\r |
290 | IN UINTN ExTokenNumber\r |
878ddf1f |
291 | )\r |
292 | {\r |
f89f5802 |
293 | if ((!FeaturePcdGet (PcdPeiPcdDatabaseGetSizeEnabled)) || !FeaturePcdGet (PcdPeiPcdDatabaseExEnabled)) {\r |
5f5f28c9 |
294 | return 0;\r |
f89f5802 |
295 | }\r |
296 | \r |
9d6d8b24 |
297 | return PeiPcdGetSize (GetExPcdTokenNumber (Guid, ExTokenNumber));\r |
878ddf1f |
298 | }\r |
299 | \r |
300 | \r |
301 | \r |
302 | EFI_STATUS\r |
303 | EFIAPI\r |
304 | PeiPcdSet8 (\r |
8a43e8dd |
305 | IN UINTN TokenNumber,\r |
1de04b4f |
306 | IN UINT8 Value\r |
878ddf1f |
307 | )\r |
308 | {\r |
1de04b4f |
309 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
310 | }\r |
311 | \r |
312 | \r |
313 | \r |
314 | EFI_STATUS\r |
315 | EFIAPI\r |
316 | PeiPcdSet16 (\r |
5f5f28c9 |
317 | IN UINTN TokenNumber,\r |
318 | IN UINT16 Value\r |
878ddf1f |
319 | )\r |
320 | {\r |
1de04b4f |
321 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
322 | }\r |
323 | \r |
324 | \r |
325 | \r |
326 | EFI_STATUS\r |
327 | EFIAPI\r |
328 | PeiPcdSet32 (\r |
5f5f28c9 |
329 | IN UINTN TokenNumber,\r |
330 | IN UINT32 Value\r |
878ddf1f |
331 | )\r |
332 | {\r |
1de04b4f |
333 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
334 | }\r |
335 | \r |
336 | \r |
337 | \r |
338 | EFI_STATUS\r |
339 | EFIAPI\r |
340 | PeiPcdSet64 (\r |
5f5f28c9 |
341 | IN UINTN TokenNumber,\r |
342 | IN UINT64 Value\r |
878ddf1f |
343 | )\r |
344 | {\r |
1de04b4f |
345 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
346 | }\r |
347 | \r |
348 | \r |
349 | EFI_STATUS\r |
350 | EFIAPI\r |
351 | PeiPcdSetPtr (\r |
5f5f28c9 |
352 | IN UINTN TokenNumber,\r |
353 | IN OUT UINTN *SizeOfBuffer,\r |
354 | IN VOID *Buffer\r |
878ddf1f |
355 | )\r |
356 | {\r |
00b7af13 |
357 | return SetWorker (TokenNumber, Buffer, SizeOfBuffer, TRUE);\r |
878ddf1f |
358 | }\r |
359 | \r |
360 | \r |
361 | \r |
362 | EFI_STATUS\r |
363 | EFIAPI\r |
364 | PeiPcdSetBool (\r |
5f5f28c9 |
365 | IN UINTN TokenNumber,\r |
366 | IN BOOLEAN Value\r |
878ddf1f |
367 | )\r |
368 | {\r |
1de04b4f |
369 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r |
878ddf1f |
370 | }\r |
371 | \r |
372 | \r |
373 | \r |
374 | EFI_STATUS\r |
375 | EFIAPI\r |
376 | PeiPcdSet8Ex (\r |
5f5f28c9 |
377 | IN CONST EFI_GUID *Guid,\r |
378 | IN UINTN ExTokenNumber,\r |
379 | IN UINT8 Value\r |
878ddf1f |
380 | )\r |
381 | {\r |
1de04b4f |
382 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
383 | }\r |
384 | \r |
385 | \r |
386 | \r |
387 | EFI_STATUS\r |
388 | EFIAPI\r |
389 | PeiPcdSet16Ex (\r |
5f5f28c9 |
390 | IN CONST EFI_GUID *Guid,\r |
391 | IN UINTN ExTokenNumber,\r |
392 | IN UINT16 Value\r |
878ddf1f |
393 | )\r |
394 | {\r |
1de04b4f |
395 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
396 | }\r |
397 | \r |
398 | \r |
399 | \r |
400 | EFI_STATUS\r |
401 | EFIAPI\r |
402 | PeiPcdSet32Ex (\r |
5f5f28c9 |
403 | IN CONST EFI_GUID *Guid,\r |
404 | IN UINTN ExTokenNumber,\r |
405 | IN UINT32 Value\r |
878ddf1f |
406 | )\r |
407 | {\r |
1de04b4f |
408 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
409 | }\r |
410 | \r |
411 | \r |
412 | \r |
413 | EFI_STATUS\r |
414 | EFIAPI\r |
415 | PeiPcdSet64Ex (\r |
5f5f28c9 |
416 | IN CONST EFI_GUID *Guid,\r |
417 | IN UINTN ExTokenNumber,\r |
418 | IN UINT64 Value\r |
878ddf1f |
419 | )\r |
420 | {\r |
1de04b4f |
421 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
422 | }\r |
423 | \r |
424 | \r |
425 | \r |
426 | EFI_STATUS\r |
427 | EFIAPI\r |
428 | PeiPcdSetPtrEx (\r |
5f5f28c9 |
429 | IN CONST EFI_GUID *Guid,\r |
430 | IN UINTN ExTokenNumber,\r |
431 | IN UINTN *SizeOfBuffer,\r |
432 | IN VOID *Value\r |
878ddf1f |
433 | )\r |
434 | {\r |
1de04b4f |
435 | return ExSetWorker (ExTokenNumber, Guid, Value, SizeOfBuffer, TRUE);\r |
878ddf1f |
436 | }\r |
437 | \r |
438 | \r |
439 | \r |
440 | EFI_STATUS\r |
441 | EFIAPI\r |
442 | PeiPcdSetBoolEx (\r |
5f5f28c9 |
443 | IN CONST EFI_GUID *Guid,\r |
444 | IN UINTN ExTokenNumber,\r |
445 | IN BOOLEAN Value\r |
878ddf1f |
446 | )\r |
447 | {\r |
1de04b4f |
448 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r |
878ddf1f |
449 | }\r |
450 | \r |
451 | \r |
452 | \r |
453 | \r |
454 | EFI_STATUS\r |
455 | EFIAPI\r |
4c114006 |
456 | PeiRegisterCallBackOnSet (\r |
878ddf1f |
457 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
2a870f53 |
458 | IN UINTN ExTokenNumber,\r |
878ddf1f |
459 | IN PCD_PPI_CALLBACK CallBackFunction\r |
460 | )\r |
461 | {\r |
f89f5802 |
462 | if (!FeaturePcdGet(PcdPeiPcdDatabaseCallbackOnSetEnabled)) {\r |
463 | return EFI_UNSUPPORTED;\r |
464 | }\r |
465 | \r |
4c114006 |
466 | ASSERT (CallBackFunction != NULL);\r |
467 | \r |
52e1905d |
468 | return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, TRUE);\r |
878ddf1f |
469 | }\r |
470 | \r |
471 | \r |
472 | \r |
473 | EFI_STATUS\r |
474 | EFIAPI\r |
475 | PcdUnRegisterCallBackOnSet (\r |
878ddf1f |
476 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
2a870f53 |
477 | IN UINTN ExTokenNumber,\r |
878ddf1f |
478 | IN PCD_PPI_CALLBACK CallBackFunction\r |
479 | )\r |
480 | {\r |
f89f5802 |
481 | if (!FeaturePcdGet(PcdPeiPcdDatabaseCallbackOnSetEnabled)) {\r |
482 | return EFI_UNSUPPORTED;\r |
483 | }\r |
484 | \r |
4c114006 |
485 | ASSERT (CallBackFunction != NULL);\r |
486 | \r |
52e1905d |
487 | return PeiRegisterCallBackWorker (ExTokenNumber, Guid, CallBackFunction, FALSE);\r |
878ddf1f |
488 | }\r |
489 | \r |
490 | \r |
491 | \r |
492 | EFI_STATUS\r |
493 | EFIAPI\r |
494 | PeiPcdGetNextToken (\r |
495 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
8a43e8dd |
496 | IN OUT UINTN *TokenNumber\r |
878ddf1f |
497 | )\r |
498 | {\r |
00b7af13 |
499 | UINTN GuidTableIdx;\r |
500 | PEI_PCD_DATABASE *PeiPcdDb;\r |
501 | EFI_GUID *MatchGuid;\r |
502 | DYNAMICEX_MAPPING *ExMapTable;\r |
503 | UINTN i;\r |
504 | BOOLEAN Found;\r |
1cc8ee78 |
505 | BOOLEAN PeiExMapTableEmpty;\r |
506 | \r |
4f914125 |
507 | if (!FeaturePcdGet (PcdPeiPcdDatabaseTraverseEnabled)) {\r |
508 | return EFI_UNSUPPORTED;\r |
509 | }\r |
1cc8ee78 |
510 | \r |
511 | PeiExMapTableEmpty = PEI_EXMAP_TABLE_EMPTY;\r |
512 | \r |
52e1905d |
513 | if (Guid == NULL) {\r |
2b21a971 |
514 | if (*TokenNumber > PEI_NEX_TOKEN_NUMBER) {\r |
515 | return EFI_NOT_FOUND;\r |
516 | }\r |
b560bb65 |
517 | (*TokenNumber)++;\r |
c24ba2f6 |
518 | if (*TokenNumber > PEI_NEX_TOKEN_NUMBER) {\r |
0653eb89 |
519 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
52e1905d |
520 | }\r |
c24ba2f6 |
521 | return EFI_SUCCESS;\r |
00b7af13 |
522 | } else {\r |
1cc8ee78 |
523 | if (PeiExMapTableEmpty) {\r |
0653eb89 |
524 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
c24ba2f6 |
525 | return EFI_SUCCESS;\r |
00b7af13 |
526 | }\r |
527 | \r |
528 | //\r |
529 | // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order\r |
530 | // 1) ExGuid\r |
531 | // 2) ExTokenNumber\r |
532 | //\r |
533 | PeiPcdDb = GetPcdDatabase ();\r |
534 | \r |
535 | MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), Guid);\r |
536 | \r |
537 | if (MatchGuid == NULL) {\r |
c24ba2f6 |
538 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
00b7af13 |
539 | return EFI_NOT_FOUND;\r |
540 | }\r |
541 | \r |
542 | GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;\r |
543 | \r |
544 | ExMapTable = PeiPcdDb->Init.ExMapTable;\r |
545 | \r |
546 | Found = FALSE;\r |
c24ba2f6 |
547 | //\r |
548 | // Locate the GUID in ExMapTable first.\r |
549 | //\r |
00b7af13 |
550 | for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
551 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
552 | Found = TRUE;\r |
553 | break;\r |
554 | }\r |
555 | }\r |
556 | \r |
557 | if (Found) {\r |
558 | if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
559 | *TokenNumber = ExMapTable[i].ExTokenNumber;\r |
560 | return EFI_SUCCESS;\r |
561 | }\r |
c24ba2f6 |
562 | \r |
563 | for ( ; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
00b7af13 |
564 | if (ExMapTable[i].ExTokenNumber == *TokenNumber) {\r |
565 | i++;\r |
c24ba2f6 |
566 | if (i == PEI_EXMAPPING_TABLE_SIZE) {\r |
567 | //\r |
568 | // Exceed the length of ExMap Table\r |
569 | //\r |
570 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
571 | return EFI_SUCCESS;\r |
572 | }\r |
00b7af13 |
573 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
574 | *TokenNumber = ExMapTable[i].ExTokenNumber;\r |
575 | return EFI_SUCCESS;\r |
576 | } else {\r |
c24ba2f6 |
577 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r |
00b7af13 |
578 | return EFI_SUCCESS;\r |
579 | }\r |
580 | }\r |
581 | }\r |
00b7af13 |
582 | return EFI_NOT_FOUND;\r |
583 | }\r |
00b7af13 |
584 | }\r |
585 | \r |
c24ba2f6 |
586 | return EFI_NOT_FOUND;\r |
00b7af13 |
587 | }\r |
588 | \r |
1de04b4f |
589 | \r |
590 | \r |
58f1099f |
591 | EFI_STATUS\r |
00b7af13 |
592 | EFIAPI\r |
4276d5da |
593 | PeiPcdGetNextTokenSpace (\r |
5f5f28c9 |
594 | IN OUT CONST EFI_GUID **Guid\r |
00b7af13 |
595 | )\r |
596 | {\r |
597 | UINTN GuidTableIdx;\r |
598 | EFI_GUID *MatchGuid;\r |
599 | PEI_PCD_DATABASE *PeiPcdDb;\r |
600 | DYNAMICEX_MAPPING *ExMapTable;\r |
601 | UINTN i;\r |
602 | BOOLEAN Found;\r |
1cc8ee78 |
603 | BOOLEAN PeiExMapTableEmpty;\r |
00b7af13 |
604 | \r |
4f914125 |
605 | if (!FeaturePcdGet (PcdPeiPcdDatabaseTraverseEnabled)) {\r |
606 | return EFI_UNSUPPORTED;\r |
607 | }\r |
608 | \r |
4276d5da |
609 | ASSERT (Guid != NULL);\r |
610 | \r |
1cc8ee78 |
611 | PeiExMapTableEmpty = PEI_EXMAP_TABLE_EMPTY;\r |
612 | \r |
613 | if (PeiExMapTableEmpty) {\r |
4276d5da |
614 | if (*Guid != NULL) {\r |
615 | return EFI_NOT_FOUND;\r |
58f1099f |
616 | } else {\r |
58f1099f |
617 | return EFI_SUCCESS;\r |
618 | }\r |
4276d5da |
619 | }\r |
52e1905d |
620 | \r |
621 | //\r |
00b7af13 |
622 | // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order\r |
623 | // 1) ExGuid\r |
624 | // 2) ExTokenNumber\r |
52e1905d |
625 | //\r |
00b7af13 |
626 | PeiPcdDb = GetPcdDatabase ();\r |
52e1905d |
627 | \r |
4276d5da |
628 | ExMapTable = PeiPcdDb->Init.ExMapTable;\r |
629 | \r |
630 | if (*Guid == NULL) {\r |
631 | //\r |
632 | // return the first Token Space Guid.\r |
633 | //\r |
634 | *Guid = &PeiPcdDb->Init.GuidTable[ExMapTable[0].ExGuidIndex];\r |
635 | return EFI_SUCCESS;\r |
636 | }\r |
637 | \r |
58f1099f |
638 | MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), *Guid);\r |
00b7af13 |
639 | \r |
640 | if (MatchGuid == NULL) {\r |
58f1099f |
641 | return EFI_NOT_FOUND;\r |
00b7af13 |
642 | }\r |
643 | \r |
644 | GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;\r |
878ddf1f |
645 | \r |
00b7af13 |
646 | Found = FALSE;\r |
647 | for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r |
648 | if (ExMapTable[i].ExGuidIndex == GuidTableIdx) {\r |
649 | Found = TRUE;\r |
650 | break;\r |
651 | }\r |
652 | }\r |
653 | \r |
654 | if (Found) {\r |
4276d5da |
655 | i++;\r |
00b7af13 |
656 | for ( ; i < PEI_EXMAPPING_TABLE_SIZE; i++ ) {\r |
657 | if (ExMapTable[i].ExGuidIndex != GuidTableIdx ) {\r |
58f1099f |
658 | *Guid = &PeiPcdDb->Init.GuidTable[ExMapTable[i].ExGuidIndex];\r |
659 | return EFI_SUCCESS;\r |
00b7af13 |
660 | }\r |
661 | }\r |
4276d5da |
662 | *Guid = NULL;\r |
663 | return EFI_SUCCESS;\r |
00b7af13 |
664 | }\r |
665 | \r |
58f1099f |
666 | return EFI_NOT_FOUND;\r |
00b7af13 |
667 | \r |
668 | }\r |
878ddf1f |
669 | \r |