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1 | /** @file\r | |
2 | Private functions used by PCD PEIM.\r | |
3 | \r | |
4 | Copyright (c) 2006, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | \r | |
14 | Module Name: Service.c\r | |
15 | \r | |
16 | **/\r | |
17 | #include "Service.h"\r | |
18 | \r | |
19 | /**\r | |
20 | The function registers the CallBackOnSet fucntion\r | |
21 | according to TokenNumber and EFI_GUID space.\r | |
22 | \r | |
23 | @param TokenNumber The token number.\r | |
24 | @param Guid The GUID space.\r | |
25 | @param CallBackFunction The Callback function to be registered.\r | |
26 | @param Register To register or unregister the callback function.\r | |
27 | \r | |
28 | @retval EFI_SUCCESS If the Callback function is registered.\r | |
29 | @retval EFI_NOT_FOUND If the PCD Entry is not found according to Token Number and GUID space.\r | |
30 | @retval EFI_OUT_OF_RESOURCES If the callback function can't be registered because there is not free\r | |
31 | slot left in the CallbackFnTable.\r | |
32 | --*/\r | |
33 | EFI_STATUS\r | |
34 | PeiRegisterCallBackWorker (\r | |
35 | IN UINTN ExTokenNumber,\r | |
36 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
37 | IN PCD_PPI_CALLBACK CallBackFunction,\r | |
38 | IN BOOLEAN Register\r | |
39 | )\r | |
40 | {\r | |
41 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
42 | PCD_PPI_CALLBACK *CallbackTable;\r | |
43 | PCD_PPI_CALLBACK Compare;\r | |
44 | PCD_PPI_CALLBACK Assign;\r | |
45 | UINT32 LocalTokenNumber;\r | |
46 | UINTN TokenNumber;\r | |
47 | UINTN Idx;\r | |
48 | \r | |
49 | if (Guid == NULL) {\r | |
50 | TokenNumber = ExTokenNumber;\r | |
51 | \r | |
52 | //\r | |
53 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
54 | // We have to decrement TokenNumber by 1 to make it usable\r | |
55 | // as the array index.\r | |
56 | //\r | |
57 | TokenNumber--;\r | |
58 | ASSERT (TokenNumber + 1 < PEI_NEX_TOKEN_NUMBER + 1);\r | |
59 | } else {\r | |
60 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
61 | \r | |
62 | //\r | |
63 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
64 | // We have to decrement TokenNumber by 1 to make it usable\r | |
65 | // as the array index.\r | |
66 | //\r | |
67 | TokenNumber--;\r | |
68 | // EBC compiler is very choosy. It may report warning about comparison\r | |
69 | // between UINTN and 0 . So we add 1 in each size of the \r | |
70 | // comparison.\r | |
71 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
72 | }\r | |
73 | \r | |
74 | \r | |
75 | LocalTokenNumber = GetPcdDatabase()->Init.LocalTokenNumberTable[TokenNumber];\r | |
76 | \r | |
77 | //\r | |
78 | // We don't support SET for HII and VPD type PCD entry in PEI phase.\r | |
79 | // So we will assert if any register callback for such PCD entry.\r | |
80 | //\r | |
81 | ASSERT ((LocalTokenNumber & PCD_TYPE_HII) == 0);\r | |
82 | ASSERT ((LocalTokenNumber & PCD_TYPE_VPD) == 0);\r | |
83 | \r | |
84 | GuidHob = GetFirstGuidHob (&gPcdPeiCallbackFnTableHobGuid);\r | |
85 | ASSERT (GuidHob != NULL);\r | |
86 | \r | |
87 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r | |
88 | CallbackTable = CallbackTable + (TokenNumber * FixedPcdGet32(PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r | |
89 | \r | |
90 | Compare = Register? NULL: CallBackFunction;\r | |
91 | Assign = Register? CallBackFunction: NULL;\r | |
92 | \r | |
93 | \r | |
94 | for (Idx = 0; Idx < FixedPcdGet32(PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r | |
95 | if (CallbackTable[Idx] == Compare) {\r | |
96 | CallbackTable[Idx] = Assign;\r | |
97 | return EFI_SUCCESS;\r | |
98 | }\r | |
99 | }\r | |
100 | \r | |
101 | return Register? EFI_OUT_OF_RESOURCES : EFI_NOT_FOUND;\r | |
102 | \r | |
103 | }\r | |
104 | \r | |
105 | \r | |
106 | \r | |
107 | \r | |
108 | /**\r | |
109 | The function builds the PCD database.\r | |
110 | \r | |
111 | @param VOID\r | |
112 | \r | |
113 | @retval VOID\r | |
114 | --*/\r | |
115 | VOID\r | |
116 | BuildPcdDatabase (\r | |
117 | VOID\r | |
118 | )\r | |
119 | {\r | |
120 | PEI_PCD_DATABASE *Database;\r | |
121 | VOID *CallbackFnTable;\r | |
122 | UINTN SizeOfCallbackFnTable;\r | |
123 | \r | |
124 | Database = BuildGuidHob (&gPcdDataBaseHobGuid, sizeof (PEI_PCD_DATABASE));\r | |
125 | \r | |
126 | ZeroMem (Database, sizeof (PEI_PCD_DATABASE));\r | |
127 | \r | |
128 | //\r | |
129 | // gPEIPcdDbInit is smaller than PEI_PCD_DATABASE\r | |
130 | //\r | |
131 | \r | |
132 | CopyMem (&Database->Init, &gPEIPcdDbInit, sizeof (gPEIPcdDbInit));\r | |
133 | \r | |
134 | SizeOfCallbackFnTable = PEI_LOCAL_TOKEN_NUMBER * sizeof (PCD_PPI_CALLBACK) * FixedPcdGet32(PcdMaxPeiPcdCallBackNumberPerPcdEntry);\r | |
135 | \r | |
136 | CallbackFnTable = BuildGuidHob (&gPcdPeiCallbackFnTableHobGuid, SizeOfCallbackFnTable);\r | |
137 | \r | |
138 | ZeroMem (CallbackFnTable, SizeOfCallbackFnTable);\r | |
139 | \r | |
140 | return;\r | |
141 | }\r | |
142 | \r | |
143 | \r | |
144 | \r | |
145 | /**\r | |
146 | The function is provided by PCD PEIM and PCD DXE driver to\r | |
147 | do the work of reading a HII variable from variable service.\r | |
148 | \r | |
149 | @param VariableGuid The Variable GUID.\r | |
150 | @param VariableName The Variable Name.\r | |
151 | @param VariableData The output data.\r | |
152 | @param VariableSize The size of the variable.\r | |
153 | \r | |
154 | @retval EFI_SUCCESS Operation successful.\r | |
155 | @retval EFI_NOT_FOUND Variablel not found.\r | |
156 | --*/\r | |
157 | STATIC\r | |
158 | EFI_STATUS\r | |
159 | GetHiiVariable (\r | |
160 | IN CONST EFI_GUID *VariableGuid,\r | |
161 | IN UINT16 *VariableName,\r | |
162 | OUT VOID **VariableData,\r | |
163 | OUT UINTN *VariableSize\r | |
164 | )\r | |
165 | {\r | |
166 | UINTN Size;\r | |
167 | EFI_STATUS Status;\r | |
168 | VOID *Buffer;\r | |
169 | EFI_PEI_READ_ONLY_VARIABLE_PPI *VariablePpi;\r | |
170 | \r | |
171 | Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariablePpiGuid, 0, NULL, (VOID **) &VariablePpi);\r | |
172 | ASSERT_EFI_ERROR (Status);\r | |
173 | \r | |
174 | Size = 0;\r | |
175 | Status = VariablePpi->PeiGetVariable (\r | |
176 | GetPeiServicesTablePointer (),\r | |
177 | VariableName,\r | |
178 | (EFI_GUID *) VariableGuid,\r | |
179 | NULL,\r | |
180 | &Size,\r | |
181 | NULL\r | |
182 | );\r | |
183 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
184 | \r | |
185 | \r | |
186 | Status = PeiServicesAllocatePool (Size, &Buffer);\r | |
187 | ASSERT_EFI_ERROR (Status);\r | |
188 | \r | |
189 | Status = VariablePpi->PeiGetVariable (\r | |
190 | GetPeiServicesTablePointer (),\r | |
191 | (UINT16 *) VariableName,\r | |
192 | (EFI_GUID *) VariableGuid,\r | |
193 | NULL,\r | |
194 | &Size,\r | |
195 | Buffer\r | |
196 | );\r | |
197 | ASSERT_EFI_ERROR (Status);\r | |
198 | \r | |
199 | *VariableSize = Size;\r | |
200 | *VariableData = Buffer;\r | |
201 | \r | |
202 | return EFI_SUCCESS;\r | |
203 | } else {\r | |
204 | return EFI_NOT_FOUND;\r | |
205 | }\r | |
206 | \r | |
207 | }\r | |
208 | \r | |
209 | STATIC\r | |
210 | UINT32\r | |
211 | GetSkuEnabledTokenNumber (\r | |
212 | UINT32 LocalTokenNumber,\r | |
213 | UINTN Size\r | |
214 | ) \r | |
215 | {\r | |
216 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
217 | SKU_HEAD *SkuHead;\r | |
218 | SKU_ID *SkuIdTable;\r | |
219 | INTN i;\r | |
220 | UINT8 *Value;\r | |
221 | \r | |
222 | PeiPcdDb = GetPcdDatabase ();\r | |
223 | \r | |
224 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);\r | |
225 | \r | |
226 | SkuHead = (SKU_HEAD *) ((UINT8 *)PeiPcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
227 | Value = (UINT8 *) ((UINT8 *)PeiPcdDb + (SkuHead->SkuDataStartOffset));\r | |
228 | SkuIdTable = (SKU_ID *) ((UINT8 *)PeiPcdDb + (SkuHead->SkuIdTableOffset));\r | |
229 | \r | |
230 | for (i = 0; i < SkuIdTable[0]; i++) {\r | |
231 | if (PeiPcdDb->Init.SystemSkuId == SkuIdTable[i + 1]) {\r | |
232 | break;\r | |
233 | }\r | |
234 | }\r | |
235 | \r | |
236 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
237 | case PCD_TYPE_VPD:\r | |
238 | Value = (UINT8 *) &(((VPD_HEAD *) Value)[i]);\r | |
239 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_VPD);\r | |
240 | \r | |
241 | case PCD_TYPE_HII:\r | |
242 | Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[i]);\r | |
243 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_HII);\r | |
244 | \r | |
245 | case PCD_TYPE_STRING:\r | |
246 | Value = (UINT8 *) &(((STRING_HEAD *) Value)[i]);\r | |
247 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_STRING);\r | |
248 | \r | |
249 | case PCD_TYPE_DATA:\r | |
250 | Value += Size * i;\r | |
251 | return (UINT32) (Value - (UINT8 *) PeiPcdDb);\r | |
252 | \r | |
253 | default:\r | |
254 | ASSERT (FALSE);\r | |
255 | }\r | |
256 | \r | |
257 | ASSERT (FALSE);\r | |
258 | \r | |
259 | return 0;\r | |
260 | \r | |
261 | }\r | |
262 | \r | |
263 | \r | |
264 | \r | |
265 | STATIC\r | |
266 | VOID\r | |
267 | InvokeCallbackOnSet (\r | |
268 | UINTN ExTokenNumber,\r | |
269 | CONST EFI_GUID *Guid, OPTIONAL\r | |
270 | UINTN TokenNumber,\r | |
271 | VOID *Data,\r | |
272 | UINTN Size\r | |
273 | )\r | |
274 | {\r | |
275 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
276 | PCD_PPI_CALLBACK *CallbackTable;\r | |
277 | UINTN Idx;\r | |
278 | \r | |
279 | //\r | |
280 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
281 | // We have to decrement TokenNumber by 1 to make it usable\r | |
282 | // as the array index.\r | |
283 | //\r | |
284 | TokenNumber--;\r | |
285 | \r | |
286 | if (Guid == NULL) {\r | |
287 | // EBC compiler is very choosy. It may report warning about comparison\r | |
288 | // between UINTN and 0 . So we add 1 in each size of the \r | |
289 | // comparison.\r | |
290 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
291 | }\r | |
292 | \r | |
293 | GuidHob = GetFirstGuidHob (&gPcdPeiCallbackFnTableHobGuid);\r | |
294 | ASSERT (GuidHob != NULL);\r | |
295 | \r | |
296 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r | |
297 | \r | |
298 | CallbackTable += (TokenNumber * FixedPcdGet32(PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r | |
299 | \r | |
300 | for (Idx = 0; Idx < FixedPcdGet32(PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r | |
301 | if (CallbackTable[Idx] != NULL) {\r | |
302 | CallbackTable[Idx] (Guid,\r | |
303 | (Guid == NULL)? TokenNumber: ExTokenNumber,\r | |
304 | Data,\r | |
305 | Size\r | |
306 | );\r | |
307 | }\r | |
308 | }\r | |
309 | \r | |
310 | }\r | |
311 | \r | |
312 | \r | |
313 | \r | |
314 | EFI_STATUS\r | |
315 | SetValueWorker (\r | |
316 | IN UINTN TokenNumber,\r | |
317 | IN VOID *Data,\r | |
318 | IN UINTN Size\r | |
319 | )\r | |
320 | {\r | |
321 | return SetWorker (TokenNumber, Data, &Size, FALSE);\r | |
322 | }\r | |
323 | \r | |
324 | \r | |
325 | \r | |
326 | EFI_STATUS\r | |
327 | SetWorker (\r | |
328 | IN UINTN TokenNumber,\r | |
329 | IN OUT VOID *Data,\r | |
330 | IN OUT UINTN *Size,\r | |
331 | IN BOOLEAN PtrType\r | |
332 | )\r | |
333 | {\r | |
334 | UINT32 LocalTokenNumber;\r | |
335 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
336 | UINT16 StringTableIdx;\r | |
337 | UINTN Offset;\r | |
338 | VOID *InternalData;\r | |
339 | UINTN MaxSize;\r | |
340 | \r | |
341 | if (!FeaturePcdGet(PcdPeiPcdDatabaseSetEnabled)) {\r | |
342 | return EFI_UNSUPPORTED;\r | |
343 | }\r | |
344 | \r | |
345 | //\r | |
346 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
347 | // We have to decrement TokenNumber by 1 to make it usable\r | |
348 | // as the array index.\r | |
349 | //\r | |
350 | TokenNumber--;\r | |
351 | \r | |
352 | // EBC compiler is very choosy. It may report warning about comparison\r | |
353 | // between UINTN and 0 . So we add 1 in each size of the \r | |
354 | // comparison.\r | |
355 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
356 | \r | |
357 | PeiPcdDb = GetPcdDatabase ();\r | |
358 | \r | |
359 | LocalTokenNumber = PeiPcdDb->Init.LocalTokenNumberTable[TokenNumber];\r | |
360 | \r | |
361 | if (!PtrType) {\r | |
362 | ASSERT (PeiPcdGetSize(TokenNumber + 1) == *Size);\r | |
363 | }\r | |
364 | \r | |
365 | //\r | |
366 | // We only invoke the callback function for Dynamic Type PCD Entry.\r | |
367 | // For Dynamic EX PCD entry, we have invoked the callback function for Dynamic EX\r | |
368 | // type PCD entry in ExSetWorker.\r | |
369 | //\r | |
370 | if (TokenNumber + 1 < PEI_NEX_TOKEN_NUMBER + 1) {\r | |
371 | InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r | |
372 | }\r | |
373 | \r | |
374 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r | |
375 | if (PtrType) {\r | |
376 | MaxSize = GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r | |
377 | } else {\r | |
378 | MaxSize = *Size;\r | |
379 | }\r | |
380 | LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize);\r | |
381 | }\r | |
382 | \r | |
383 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
384 | InternalData = (VOID *) ((UINT8 *) PeiPcdDb + Offset);\r | |
385 | \r | |
386 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
387 | case PCD_TYPE_VPD:\r | |
388 | case PCD_TYPE_HII:\r | |
389 | {\r | |
390 | ASSERT (FALSE);\r | |
391 | return EFI_INVALID_PARAMETER;\r | |
392 | }\r | |
393 | \r | |
394 | case PCD_TYPE_STRING:\r | |
395 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
396 | StringTableIdx = *((UINT16 *)InternalData);\r | |
397 | CopyMem (&PeiPcdDb->Init.StringTable[StringTableIdx], Data, *Size);\r | |
398 | return EFI_SUCCESS;\r | |
399 | } else {\r | |
400 | return EFI_INVALID_PARAMETER;\r | |
401 | }\r | |
402 | \r | |
403 | case PCD_TYPE_DATA:\r | |
404 | {\r | |
405 | if (PtrType) {\r | |
406 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
407 | CopyMem (InternalData, Data, *Size);\r | |
408 | return EFI_SUCCESS;\r | |
409 | } else {\r | |
410 | return EFI_INVALID_PARAMETER;\r | |
411 | }\r | |
412 | }\r | |
413 | \r | |
414 | switch (*Size) {\r | |
415 | case sizeof(UINT8):\r | |
416 | *((UINT8 *) InternalData) = *((UINT8 *) Data);\r | |
417 | return EFI_SUCCESS;\r | |
418 | \r | |
419 | case sizeof(UINT16):\r | |
420 | *((UINT16 *) InternalData) = *((UINT16 *) Data);\r | |
421 | return EFI_SUCCESS;\r | |
422 | \r | |
423 | case sizeof(UINT32):\r | |
424 | *((UINT32 *) InternalData) = *((UINT32 *) Data);\r | |
425 | return EFI_SUCCESS;\r | |
426 | \r | |
427 | case sizeof(UINT64):\r | |
428 | *((UINT64 *) InternalData) = *((UINT64 *) Data);\r | |
429 | return EFI_SUCCESS;\r | |
430 | \r | |
431 | default:\r | |
432 | ASSERT (FALSE);\r | |
433 | return EFI_NOT_FOUND;\r | |
434 | }\r | |
435 | }\r | |
436 | \r | |
437 | }\r | |
438 | \r | |
439 | ASSERT (FALSE);\r | |
440 | return EFI_NOT_FOUND;\r | |
441 | \r | |
442 | }\r | |
443 | \r | |
444 | \r | |
445 | \r | |
446 | EFI_STATUS\r | |
447 | ExSetValueWorker (\r | |
448 | IN UINTN ExTokenNumber,\r | |
449 | IN CONST EFI_GUID *Guid,\r | |
450 | IN VOID *Data,\r | |
451 | IN UINTN Size\r | |
452 | )\r | |
453 | {\r | |
454 | return ExSetWorker (ExTokenNumber, Guid, Data, &Size, FALSE);\r | |
455 | }\r | |
456 | \r | |
457 | \r | |
458 | \r | |
459 | EFI_STATUS\r | |
460 | ExSetWorker (\r | |
461 | IN UINTN ExTokenNumber,\r | |
462 | IN CONST EFI_GUID *Guid,\r | |
463 | IN VOID *Data,\r | |
464 | IN OUT UINTN *Size,\r | |
465 | IN BOOLEAN PtrType\r | |
466 | )\r | |
467 | {\r | |
468 | UINTN TokenNumber;\r | |
469 | \r | |
470 | if (!FeaturePcdGet(PcdPeiPcdDatabaseSetEnabled)) {\r | |
471 | return EFI_UNSUPPORTED;\r | |
472 | }\r | |
473 | \r | |
474 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
475 | \r | |
476 | InvokeCallbackOnSet (ExTokenNumber, Guid, TokenNumber, Data, *Size);\r | |
477 | \r | |
478 | return SetWorker (TokenNumber, Data, Size, PtrType);\r | |
479 | \r | |
480 | }\r | |
481 | \r | |
482 | \r | |
483 | \r | |
484 | \r | |
485 | VOID *\r | |
486 | ExGetWorker (\r | |
487 | IN CONST EFI_GUID *Guid,\r | |
488 | IN UINTN ExTokenNumber,\r | |
489 | IN UINTN GetSize\r | |
490 | )\r | |
491 | {\r | |
492 | if (!FeaturePcdGet (PcdPeiPcdDatabaseExEnabled)) {\r | |
493 | ASSERT (FALSE);\r | |
494 | return 0;\r | |
495 | }\r | |
496 | \r | |
497 | return GetWorker (GetExPcdTokenNumber (Guid, ExTokenNumber), GetSize);\r | |
498 | }\r | |
499 | \r | |
500 | \r | |
501 | \r | |
502 | \r | |
503 | VOID *\r | |
504 | GetWorker (\r | |
505 | UINTN TokenNumber,\r | |
506 | UINTN GetSize\r | |
507 | )\r | |
508 | {\r | |
509 | UINT32 Offset;\r | |
510 | EFI_GUID *Guid;\r | |
511 | UINT16 *Name;\r | |
512 | VARIABLE_HEAD *VariableHead;\r | |
513 | EFI_STATUS Status;\r | |
514 | UINTN DataSize;\r | |
515 | VOID *Data;\r | |
516 | UINT16 *StringTable;\r | |
517 | UINT16 StringTableIdx;\r | |
518 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
519 | UINT32 LocalTokenNumber;\r | |
520 | UINTN MaxSize;\r | |
521 | \r | |
522 | //\r | |
523 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
524 | // We have to decrement TokenNumber by 1 to make it usable\r | |
525 | // as the array index.\r | |
526 | //\r | |
527 | TokenNumber--;\r | |
528 | \r | |
529 | // EBC compiler is very choosy. It may report warning about comparison\r | |
530 | // between UINTN and 0 . So we add 1 in each size of the \r | |
531 | // comparison.\r | |
532 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
533 | \r | |
534 | ASSERT ((GetSize == PeiPcdGetSize(TokenNumber + 1)) || (GetSize == 0));\r | |
535 | \r | |
536 | PeiPcdDb = GetPcdDatabase ();\r | |
537 | \r | |
538 | LocalTokenNumber = PeiPcdDb->Init.LocalTokenNumberTable[TokenNumber];\r | |
539 | \r | |
540 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r | |
541 | if (GetSize == 0) {\r | |
542 | MaxSize = GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r | |
543 | } else {\r | |
544 | MaxSize = GetSize;\r | |
545 | }\r | |
546 | LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize);\r | |
547 | }\r | |
548 | \r | |
549 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
550 | StringTable = PeiPcdDb->Init.StringTable;\r | |
551 | \r | |
552 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
553 | case PCD_TYPE_VPD:\r | |
554 | {\r | |
555 | VPD_HEAD *VpdHead;\r | |
556 | VpdHead = (VPD_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
557 | return (VOID *) (UINTN) (FixedPcdGet32(PcdVpdBaseAddress) + VpdHead->Offset);\r | |
558 | }\r | |
559 | \r | |
560 | case PCD_TYPE_HII:\r | |
561 | {\r | |
562 | VariableHead = (VARIABLE_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
563 | \r | |
564 | Guid = &(PeiPcdDb->Init.GuidTable[VariableHead->GuidTableIndex]);\r | |
565 | Name = &StringTable[VariableHead->StringIndex];\r | |
566 | \r | |
567 | Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r | |
568 | \r | |
569 | if (Status == EFI_SUCCESS) {\r | |
570 | return (VOID *) ((UINT8 *) Data + VariableHead->Offset);\r | |
571 | } else {\r | |
572 | //\r | |
573 | // Return the default value specified by Platform Integrator \r | |
574 | //\r | |
575 | return (VOID *) ((UINT8 *) PeiPcdDb + VariableHead->DefaultValueOffset);\r | |
576 | }\r | |
577 | }\r | |
578 | \r | |
579 | case PCD_TYPE_DATA:\r | |
580 | return (VOID *) ((UINT8 *)PeiPcdDb + Offset);\r | |
581 | \r | |
582 | case PCD_TYPE_STRING:\r | |
583 | StringTableIdx = (UINT16) *((UINT8 *) PeiPcdDb + Offset);\r | |
584 | return (VOID *) (&StringTable[StringTableIdx]);\r | |
585 | \r | |
586 | default:\r | |
587 | ASSERT (FALSE);\r | |
588 | break;\r | |
589 | \r | |
590 | }\r | |
591 | \r | |
592 | ASSERT (FALSE);\r | |
593 | \r | |
594 | return NULL;\r | |
595 | \r | |
596 | }\r | |
597 | \r | |
598 | \r | |
599 | \r | |
600 | UINTN \r | |
601 | GetExPcdTokenNumber (\r | |
602 | IN CONST EFI_GUID *Guid,\r | |
603 | IN UINTN ExTokenNumber\r | |
604 | )\r | |
605 | {\r | |
606 | UINT32 i;\r | |
607 | DYNAMICEX_MAPPING *ExMap;\r | |
608 | EFI_GUID *GuidTable;\r | |
609 | EFI_GUID *MatchGuid;\r | |
610 | UINTN MatchGuidIdx;\r | |
611 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
612 | \r | |
613 | PeiPcdDb = GetPcdDatabase();\r | |
614 | \r | |
615 | ExMap = PeiPcdDb->Init.ExMapTable;\r | |
616 | GuidTable = PeiPcdDb->Init.GuidTable;\r | |
617 | \r | |
618 | MatchGuid = ScanGuid (GuidTable, sizeof(PeiPcdDb->Init.GuidTable), Guid);\r | |
619 | //\r | |
620 | // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r | |
621 | // error in the BUILD system.\r | |
622 | //\r | |
623 | ASSERT (MatchGuid != NULL);\r | |
624 | \r | |
625 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
626 | \r | |
627 | for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {\r | |
628 | if ((ExTokenNumber == ExMap[i].ExTokenNumber) && \r | |
629 | (MatchGuidIdx == ExMap[i].ExGuidIndex)) {\r | |
630 | return ExMap[i].LocalTokenNumber;\r | |
631 | }\r | |
632 | }\r | |
633 | \r | |
634 | ASSERT (FALSE);\r | |
635 | \r | |
636 | return 0;\r | |
637 | }\r | |
638 | \r | |
639 | \r | |
640 | \r | |
641 | PEI_PCD_DATABASE *\r | |
642 | GetPcdDatabase (\r | |
643 | VOID\r | |
644 | )\r | |
645 | {\r | |
646 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
647 | \r | |
648 | GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r | |
649 | ASSERT (GuidHob != NULL);\r | |
650 | \r | |
651 | return (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r | |
652 | }\r | |
653 | \r | |
654 | \r | |
655 | \r | |
656 | SKU_ID *\r | |
657 | GetSkuIdArray (\r | |
658 | IN UINTN LocalTokenNumberTableIdx,\r | |
659 | IN PEI_PCD_DATABASE *Database\r | |
660 | )\r | |
661 | {\r | |
662 | SKU_HEAD *SkuHead;\r | |
663 | UINTN LocalTokenNumber;\r | |
664 | \r | |
665 | LocalTokenNumber = Database->Init.LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
666 | \r | |
667 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0);\r | |
668 | \r | |
669 | SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
670 | \r | |
671 | return (SKU_ID *) ((UINT8 *)Database + SkuHead->SkuIdTableOffset);\r | |
672 | \r | |
673 | }\r | |
674 | \r | |
675 | \r | |
676 | \r | |
677 | UINTN\r | |
678 | GetSizeTableIndex (\r | |
679 | IN UINTN LocalTokenNumberTableIdx,\r | |
680 | IN PEI_PCD_DATABASE *Database\r | |
681 | )\r | |
682 | {\r | |
683 | UINTN i;\r | |
684 | UINTN SizeTableIdx;\r | |
685 | UINTN LocalTokenNumber;\r | |
686 | SKU_ID *SkuIdTable;\r | |
687 | \r | |
688 | SizeTableIdx = 0;\r | |
689 | \r | |
690 | for (i=0; i<LocalTokenNumberTableIdx; i++) {\r | |
691 | LocalTokenNumber = Database->Init.LocalTokenNumberTable[i];\r | |
692 | \r | |
693 | if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r | |
694 | //\r | |
695 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
696 | // PCD entry.\r | |
697 | //\r | |
698 | if (LocalTokenNumber & PCD_TYPE_VPD) {\r | |
699 | //\r | |
700 | // We have only one entry for VPD enabled PCD entry:\r | |
701 | // 1) MAX Size.\r | |
702 | // We consider current size is equal to MAX size.\r | |
703 | //\r | |
704 | SizeTableIdx++;\r | |
705 | } else {\r | |
706 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
707 | //\r | |
708 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
709 | // 1) MAX SIZE\r | |
710 | // 2) Current Size\r | |
711 | //\r | |
712 | SizeTableIdx += 2;\r | |
713 | } else {\r | |
714 | //\r | |
715 | // We have these entry for SKU enabled PCD entry\r | |
716 | // 1) MAX SIZE\r | |
717 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
718 | //\r | |
719 | SkuIdTable = GetSkuIdArray (i, Database);\r | |
720 | SizeTableIdx += (UINTN)*SkuIdTable + 1;\r | |
721 | }\r | |
722 | }\r | |
723 | }\r | |
724 | \r | |
725 | }\r | |
726 | \r | |
727 | return SizeTableIdx;\r | |
728 | }\r |