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80408db0 | 1 | /** @file\r |
5944a83b LG |
2 | The driver internal functions are implmented here.\r |
3 | They build Pei PCD database, and provide access service to PCD database.\r | |
80408db0 | 4 | \r |
64894410 | 5 | Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 6 | This program and the accompanying materials\r |
80408db0 | 7 | are licensed and made available under the terms and conditions of the BSD License\r |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
80408db0 | 14 | **/\r |
80408db0 | 15 | \r |
16 | #include "Service.h"\r | |
17 | \r | |
18 | /**\r | |
19 | The function registers the CallBackOnSet fucntion\r | |
20 | according to TokenNumber and EFI_GUID space.\r | |
21 | \r | |
fc547e08 | 22 | @param ExTokenNumber The token number.\r |
80408db0 | 23 | @param Guid The GUID space.\r |
24 | @param CallBackFunction The Callback function to be registered.\r | |
25 | @param Register To register or unregister the callback function.\r | |
26 | \r | |
27 | @retval EFI_SUCCESS If the Callback function is registered.\r | |
28 | @retval EFI_NOT_FOUND If the PCD Entry is not found according to Token Number and GUID space.\r | |
29 | @retval EFI_OUT_OF_RESOURCES If the callback function can't be registered because there is not free\r | |
30 | slot left in the CallbackFnTable.\r | |
8ec8bed4 | 31 | @retval EFI_INVALID_PARAMETER If the callback function want to be de-registered can not be found.\r |
fc547e08 | 32 | **/\r |
80408db0 | 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 | |
86714ccd | 61 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
62 | return EFI_NOT_FOUND;\r | |
63 | }\r | |
64 | \r | |
80408db0 | 65 | //\r |
66 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
67 | // We have to decrement TokenNumber by 1 to make it usable\r | |
68 | // as the array index.\r | |
69 | //\r | |
70 | TokenNumber--;\r | |
71 | // EBC compiler is very choosy. It may report warning about comparison\r | |
72 | // between UINTN and 0 . So we add 1 in each size of the \r | |
73 | // comparison.\r | |
74 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
75 | }\r | |
76 | \r | |
77 | \r | |
78 | LocalTokenNumber = GetPcdDatabase()->Init.LocalTokenNumberTable[TokenNumber];\r | |
79 | \r | |
80 | //\r | |
81 | // We don't support SET for HII and VPD type PCD entry in PEI phase.\r | |
82 | // So we will assert if any register callback for such PCD entry.\r | |
83 | //\r | |
84 | ASSERT ((LocalTokenNumber & PCD_TYPE_HII) == 0);\r | |
85 | ASSERT ((LocalTokenNumber & PCD_TYPE_VPD) == 0);\r | |
86 | \r | |
96cb78a1 | 87 | GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r |
80408db0 | 88 | ASSERT (GuidHob != NULL);\r |
89 | \r | |
90 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r | |
188e4e84 | 91 | CallbackTable = CallbackTable + (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r |
80408db0 | 92 | \r |
93 | Compare = Register? NULL: CallBackFunction;\r | |
94 | Assign = Register? CallBackFunction: NULL;\r | |
95 | \r | |
96 | \r | |
188e4e84 | 97 | for (Idx = 0; Idx < PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r |
80408db0 | 98 | if (CallbackTable[Idx] == Compare) {\r |
99 | CallbackTable[Idx] = Assign;\r | |
100 | return EFI_SUCCESS;\r | |
101 | }\r | |
102 | }\r | |
103 | \r | |
8ec8bed4 | 104 | return Register? EFI_OUT_OF_RESOURCES : EFI_INVALID_PARAMETER;\r |
80408db0 | 105 | \r |
106 | }\r | |
107 | \r | |
80408db0 | 108 | /**\r |
109 | The function builds the PCD database.\r | |
fc547e08 | 110 | **/\r |
80408db0 | 111 | VOID\r |
112 | BuildPcdDatabase (\r | |
113 | VOID\r | |
114 | )\r | |
115 | {\r | |
116 | PEI_PCD_DATABASE *Database;\r | |
117 | VOID *CallbackFnTable;\r | |
118 | UINTN SizeOfCallbackFnTable;\r | |
119 | \r | |
120 | Database = BuildGuidHob (&gPcdDataBaseHobGuid, sizeof (PEI_PCD_DATABASE));\r | |
121 | \r | |
122 | ZeroMem (Database, sizeof (PEI_PCD_DATABASE));\r | |
123 | \r | |
124 | //\r | |
125 | // gPEIPcdDbInit is smaller than PEI_PCD_DATABASE\r | |
126 | //\r | |
127 | \r | |
128 | CopyMem (&Database->Init, &gPEIPcdDbInit, sizeof (gPEIPcdDbInit));\r | |
129 | \r | |
188e4e84 | 130 | SizeOfCallbackFnTable = PEI_LOCAL_TOKEN_NUMBER * sizeof (PCD_PPI_CALLBACK) * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry);\r |
80408db0 | 131 | \r |
96cb78a1 | 132 | CallbackFnTable = BuildGuidHob (&gEfiCallerIdGuid, SizeOfCallbackFnTable);\r |
80408db0 | 133 | \r |
134 | ZeroMem (CallbackFnTable, SizeOfCallbackFnTable);\r | |
80408db0 | 135 | }\r |
136 | \r | |
80408db0 | 137 | /**\r |
138 | The function is provided by PCD PEIM and PCD DXE driver to\r | |
139 | do the work of reading a HII variable from variable service.\r | |
140 | \r | |
141 | @param VariableGuid The Variable GUID.\r | |
142 | @param VariableName The Variable Name.\r | |
143 | @param VariableData The output data.\r | |
144 | @param VariableSize The size of the variable.\r | |
145 | \r | |
146 | @retval EFI_SUCCESS Operation successful.\r | |
147 | @retval EFI_NOT_FOUND Variablel not found.\r | |
fc547e08 | 148 | **/\r |
80408db0 | 149 | EFI_STATUS\r |
150 | GetHiiVariable (\r | |
151 | IN CONST EFI_GUID *VariableGuid,\r | |
152 | IN UINT16 *VariableName,\r | |
153 | OUT VOID **VariableData,\r | |
154 | OUT UINTN *VariableSize\r | |
155 | )\r | |
156 | {\r | |
157 | UINTN Size;\r | |
158 | EFI_STATUS Status;\r | |
159 | VOID *Buffer;\r | |
97a079ed | 160 | EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariablePpi;\r |
80408db0 | 161 | \r |
97a079ed | 162 | Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariable2PpiGuid, 0, NULL, (VOID **) &VariablePpi);\r |
80408db0 | 163 | ASSERT_EFI_ERROR (Status);\r |
164 | \r | |
165 | Size = 0;\r | |
97a079ed A |
166 | Status = VariablePpi->GetVariable (\r |
167 | VariablePpi,\r | |
80408db0 | 168 | VariableName,\r |
169 | (EFI_GUID *) VariableGuid,\r | |
170 | NULL,\r | |
171 | &Size,\r | |
172 | NULL\r | |
97a079ed | 173 | );\r |
80408db0 | 174 | \r |
e5618791 | 175 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
80408db0 | 176 | Status = PeiServicesAllocatePool (Size, &Buffer);\r |
177 | ASSERT_EFI_ERROR (Status);\r | |
178 | \r | |
97a079ed A |
179 | Status = VariablePpi->GetVariable (\r |
180 | VariablePpi,\r | |
80408db0 | 181 | (UINT16 *) VariableName,\r |
182 | (EFI_GUID *) VariableGuid,\r | |
183 | NULL,\r | |
184 | &Size,\r | |
185 | Buffer\r | |
186 | );\r | |
187 | ASSERT_EFI_ERROR (Status);\r | |
188 | \r | |
189 | *VariableSize = Size;\r | |
190 | *VariableData = Buffer;\r | |
191 | \r | |
192 | return EFI_SUCCESS;\r | |
e5618791 | 193 | }\r |
80408db0 | 194 | \r |
fc547e08 | 195 | return EFI_NOT_FOUND;\r |
80408db0 | 196 | }\r |
197 | \r | |
fc547e08 | 198 | /**\r |
199 | Find the local token number according to system SKU ID.\r | |
200 | \r | |
201 | @param LocalTokenNumber PCD token number\r | |
202 | @param Size The size of PCD entry.\r | |
203 | \r | |
204 | @return Token number according to system SKU ID.\r | |
205 | \r | |
206 | **/\r | |
80408db0 | 207 | UINT32\r |
208 | GetSkuEnabledTokenNumber (\r | |
209 | UINT32 LocalTokenNumber,\r | |
210 | UINTN Size\r | |
211 | ) \r | |
212 | {\r | |
213 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
214 | SKU_HEAD *SkuHead;\r | |
215 | SKU_ID *SkuIdTable;\r | |
fc547e08 | 216 | INTN Index;\r |
80408db0 | 217 | UINT8 *Value;\r |
218 | \r | |
219 | PeiPcdDb = GetPcdDatabase ();\r | |
220 | \r | |
221 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);\r | |
222 | \r | |
223 | SkuHead = (SKU_HEAD *) ((UINT8 *)PeiPcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
224 | Value = (UINT8 *) ((UINT8 *)PeiPcdDb + (SkuHead->SkuDataStartOffset));\r | |
225 | SkuIdTable = (SKU_ID *) ((UINT8 *)PeiPcdDb + (SkuHead->SkuIdTableOffset));\r | |
226 | \r | |
fc547e08 | 227 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r |
228 | if (PeiPcdDb->Init.SystemSkuId == SkuIdTable[Index + 1]) {\r | |
80408db0 | 229 | break;\r |
230 | }\r | |
231 | }\r | |
232 | \r | |
233 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
234 | case PCD_TYPE_VPD:\r | |
fc547e08 | 235 | Value = (UINT8 *) &(((VPD_HEAD *) Value)[Index]);\r |
80408db0 | 236 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_VPD);\r |
237 | \r | |
238 | case PCD_TYPE_HII:\r | |
fc547e08 | 239 | Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r |
80408db0 | 240 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_HII);\r |
241 | \r | |
242 | case PCD_TYPE_STRING:\r | |
fc547e08 | 243 | Value = (UINT8 *) &(((STRING_HEAD *) Value)[Index]);\r |
80408db0 | 244 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_STRING);\r |
245 | \r | |
246 | case PCD_TYPE_DATA:\r | |
fc547e08 | 247 | Value += Size * Index;\r |
80408db0 | 248 | return (UINT32) (Value - (UINT8 *) PeiPcdDb);\r |
249 | \r | |
250 | default:\r | |
251 | ASSERT (FALSE);\r | |
252 | }\r | |
253 | \r | |
254 | ASSERT (FALSE);\r | |
255 | \r | |
256 | return 0;\r | |
80408db0 | 257 | }\r |
258 | \r | |
fc547e08 | 259 | /**\r |
260 | Invoke the callback function when dynamic PCD entry was set, if this PCD entry \r | |
261 | has registered callback function.\r | |
80408db0 | 262 | \r |
fc547e08 | 263 | @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r |
264 | type PCD.\r | |
265 | @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type\r | |
266 | PCD.\r | |
267 | @param TokenNumber PCD token number generated by build tools.\r | |
268 | @param Data Value want to be set for this PCD entry\r | |
269 | @param Size The size of value\r | |
80408db0 | 270 | \r |
fc547e08 | 271 | **/\r |
80408db0 | 272 | VOID\r |
273 | InvokeCallbackOnSet (\r | |
274 | UINTN ExTokenNumber,\r | |
275 | CONST EFI_GUID *Guid, OPTIONAL\r | |
276 | UINTN TokenNumber,\r | |
277 | VOID *Data,\r | |
278 | UINTN Size\r | |
279 | )\r | |
280 | {\r | |
281 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
282 | PCD_PPI_CALLBACK *CallbackTable;\r | |
283 | UINTN Idx;\r | |
284 | \r | |
285 | //\r | |
286 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
287 | // We have to decrement TokenNumber by 1 to make it usable\r | |
288 | // as the array index.\r | |
289 | //\r | |
290 | TokenNumber--;\r | |
291 | \r | |
292 | if (Guid == NULL) {\r | |
293 | // EBC compiler is very choosy. It may report warning about comparison\r | |
294 | // between UINTN and 0 . So we add 1 in each size of the \r | |
295 | // comparison.\r | |
296 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
297 | }\r | |
298 | \r | |
96cb78a1 | 299 | GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r |
80408db0 | 300 | ASSERT (GuidHob != NULL);\r |
301 | \r | |
302 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r | |
303 | \r | |
188e4e84 | 304 | CallbackTable += (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r |
80408db0 | 305 | \r |
188e4e84 | 306 | for (Idx = 0; Idx < PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r |
80408db0 | 307 | if (CallbackTable[Idx] != NULL) {\r |
308 | CallbackTable[Idx] (Guid,\r | |
736c5dd5 | 309 | (Guid == NULL) ? (TokenNumber + 1) : ExTokenNumber,\r |
80408db0 | 310 | Data,\r |
311 | Size\r | |
312 | );\r | |
313 | }\r | |
314 | }\r | |
80408db0 | 315 | }\r |
316 | \r | |
fc547e08 | 317 | /**\r |
318 | Wrapper function for setting non-pointer type value for a PCD entry.\r | |
319 | \r | |
320 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
321 | @param Data Value want to be set for PCD entry\r | |
322 | @param Size Size of value.\r | |
80408db0 | 323 | \r |
fc547e08 | 324 | @return status of SetWorker.\r |
80408db0 | 325 | \r |
fc547e08 | 326 | **/\r |
80408db0 | 327 | EFI_STATUS\r |
328 | SetValueWorker (\r | |
329 | IN UINTN TokenNumber,\r | |
330 | IN VOID *Data,\r | |
331 | IN UINTN Size\r | |
332 | )\r | |
333 | {\r | |
334 | return SetWorker (TokenNumber, Data, &Size, FALSE);\r | |
335 | }\r | |
336 | \r | |
fc547e08 | 337 | /**\r |
338 | Set value for an PCD entry\r | |
339 | \r | |
340 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
341 | @param Data Value want to be set for PCD entry\r | |
342 | @param Size Size of value.\r | |
343 | @param PtrType If TRUE, the type of PCD entry's value is Pointer.\r | |
344 | If False, the type of PCD entry's value is not Pointer.\r | |
345 | \r | |
346 | @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.\r | |
347 | @retval EFI_INVALID_PARAMETER If Size can not be set to size table.\r | |
149fb6d6 | 348 | @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database.\r |
fc547e08 | 349 | @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r |
350 | range of UINT8, UINT16, UINT32, UINT64\r | |
351 | @retval EFI_NOT_FOUND Can not find the PCD type according to token number. \r | |
352 | **/\r | |
80408db0 | 353 | EFI_STATUS\r |
354 | SetWorker (\r | |
355 | IN UINTN TokenNumber,\r | |
fc547e08 | 356 | IN VOID *Data,\r |
80408db0 | 357 | IN OUT UINTN *Size,\r |
358 | IN BOOLEAN PtrType\r | |
359 | )\r | |
360 | {\r | |
361 | UINT32 LocalTokenNumber;\r | |
362 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
363 | UINT16 StringTableIdx;\r | |
364 | UINTN Offset;\r | |
365 | VOID *InternalData;\r | |
366 | UINTN MaxSize;\r | |
367 | \r | |
f806dd27 | 368 | if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r |
80408db0 | 369 | return EFI_UNSUPPORTED;\r |
370 | }\r | |
371 | \r | |
372 | //\r | |
373 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
374 | // We have to decrement TokenNumber by 1 to make it usable\r | |
375 | // as the array index.\r | |
376 | //\r | |
377 | TokenNumber--;\r | |
378 | \r | |
379 | // EBC compiler is very choosy. It may report warning about comparison\r | |
380 | // between UINTN and 0 . So we add 1 in each size of the \r | |
381 | // comparison.\r | |
382 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
383 | \r | |
384 | PeiPcdDb = GetPcdDatabase ();\r | |
385 | \r | |
386 | LocalTokenNumber = PeiPcdDb->Init.LocalTokenNumberTable[TokenNumber];\r | |
387 | \r | |
8ec8bed4 | 388 | if (PtrType) {\r |
64894410 LG |
389 | //\r |
390 | // Get MaxSize first, then check new size with max buffer size.\r | |
391 | //\r | |
392 | GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r | |
393 | if (*Size > MaxSize) {\r | |
cb40609c | 394 | *Size = MaxSize;\r |
8ec8bed4 | 395 | return EFI_INVALID_PARAMETER;\r |
396 | }\r | |
397 | } else {\r | |
398 | if (*Size != PeiPcdGetSize (TokenNumber + 1)) {\r | |
399 | return EFI_INVALID_PARAMETER;\r | |
400 | }\r | |
80408db0 | 401 | }\r |
402 | \r | |
403 | //\r | |
404 | // We only invoke the callback function for Dynamic Type PCD Entry.\r | |
405 | // For Dynamic EX PCD entry, we have invoked the callback function for Dynamic EX\r | |
406 | // type PCD entry in ExSetWorker.\r | |
407 | //\r | |
408 | if (TokenNumber + 1 < PEI_NEX_TOKEN_NUMBER + 1) {\r | |
409 | InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r | |
410 | }\r | |
411 | \r | |
412 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r | |
413 | if (PtrType) {\r | |
64894410 | 414 | GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r |
80408db0 | 415 | } else {\r |
416 | MaxSize = *Size;\r | |
417 | }\r | |
418 | LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize);\r | |
419 | }\r | |
420 | \r | |
421 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
422 | InternalData = (VOID *) ((UINT8 *) PeiPcdDb + Offset);\r | |
423 | \r | |
424 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
425 | case PCD_TYPE_VPD:\r | |
426 | case PCD_TYPE_HII:\r | |
6ac15f7c | 427 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r |
80408db0 | 428 | {\r |
429 | ASSERT (FALSE);\r | |
430 | return EFI_INVALID_PARAMETER;\r | |
431 | }\r | |
432 | \r | |
433 | case PCD_TYPE_STRING:\r | |
434 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
435 | StringTableIdx = *((UINT16 *)InternalData);\r | |
436 | CopyMem (&PeiPcdDb->Init.StringTable[StringTableIdx], Data, *Size);\r | |
437 | return EFI_SUCCESS;\r | |
438 | } else {\r | |
439 | return EFI_INVALID_PARAMETER;\r | |
440 | }\r | |
441 | \r | |
442 | case PCD_TYPE_DATA:\r | |
443 | {\r | |
444 | if (PtrType) {\r | |
445 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
446 | CopyMem (InternalData, Data, *Size);\r | |
447 | return EFI_SUCCESS;\r | |
448 | } else {\r | |
449 | return EFI_INVALID_PARAMETER;\r | |
450 | }\r | |
451 | }\r | |
452 | \r | |
453 | switch (*Size) {\r | |
454 | case sizeof(UINT8):\r | |
455 | *((UINT8 *) InternalData) = *((UINT8 *) Data);\r | |
456 | return EFI_SUCCESS;\r | |
457 | \r | |
458 | case sizeof(UINT16):\r | |
459 | *((UINT16 *) InternalData) = *((UINT16 *) Data);\r | |
460 | return EFI_SUCCESS;\r | |
461 | \r | |
462 | case sizeof(UINT32):\r | |
463 | *((UINT32 *) InternalData) = *((UINT32 *) Data);\r | |
464 | return EFI_SUCCESS;\r | |
465 | \r | |
466 | case sizeof(UINT64):\r | |
467 | *((UINT64 *) InternalData) = *((UINT64 *) Data);\r | |
468 | return EFI_SUCCESS;\r | |
469 | \r | |
470 | default:\r | |
471 | ASSERT (FALSE);\r | |
472 | return EFI_NOT_FOUND;\r | |
473 | }\r | |
474 | }\r | |
475 | \r | |
476 | }\r | |
477 | \r | |
478 | ASSERT (FALSE);\r | |
479 | return EFI_NOT_FOUND;\r | |
480 | \r | |
481 | }\r | |
482 | \r | |
fc547e08 | 483 | /**\r |
484 | Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.\r | |
80408db0 | 485 | \r |
fc547e08 | 486 | @param ExTokenNumber Token number for dynamic-ex PCD.\r |
487 | @param Guid Token space guid for dynamic-ex PCD.\r | |
488 | @param Data Value want to be set.\r | |
489 | @param SetSize The size of value.\r | |
80408db0 | 490 | \r |
fc547e08 | 491 | @return status of ExSetWorker().\r |
492 | \r | |
493 | **/\r | |
80408db0 | 494 | EFI_STATUS\r |
495 | ExSetValueWorker (\r | |
496 | IN UINTN ExTokenNumber,\r | |
497 | IN CONST EFI_GUID *Guid,\r | |
498 | IN VOID *Data,\r | |
499 | IN UINTN Size\r | |
500 | )\r | |
501 | {\r | |
502 | return ExSetWorker (ExTokenNumber, Guid, Data, &Size, FALSE);\r | |
503 | }\r | |
504 | \r | |
fc547e08 | 505 | /**\r |
506 | Set value for a dynamic PCD entry.\r | |
507 | \r | |
508 | This routine find the local token number according to dynamic-ex PCD's token \r | |
509 | space guid and token number firstly, and invoke callback function if this PCD\r | |
510 | entry registered callback function. Finally, invoken general SetWorker to set\r | |
511 | PCD value.\r | |
512 | \r | |
513 | @param ExTokenNumber Dynamic-ex PCD token number.\r | |
514 | @param Guid Token space guid for dynamic-ex PCD.\r | |
515 | @param Data PCD value want to be set\r | |
516 | @param SetSize Size of value.\r | |
517 | @param PtrType If TRUE, this PCD entry is pointer type.\r | |
518 | If FALSE, this PCD entry is not pointer type.\r | |
80408db0 | 519 | \r |
fc547e08 | 520 | @return status of SetWorker().\r |
80408db0 | 521 | \r |
fc547e08 | 522 | **/\r |
80408db0 | 523 | EFI_STATUS\r |
524 | ExSetWorker (\r | |
525 | IN UINTN ExTokenNumber,\r | |
526 | IN CONST EFI_GUID *Guid,\r | |
527 | IN VOID *Data,\r | |
528 | IN OUT UINTN *Size,\r | |
529 | IN BOOLEAN PtrType\r | |
530 | )\r | |
531 | {\r | |
532 | UINTN TokenNumber;\r | |
533 | \r | |
f806dd27 | 534 | if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r |
80408db0 | 535 | return EFI_UNSUPPORTED;\r |
536 | }\r | |
537 | \r | |
538 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
86714ccd | 539 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
540 | return EFI_NOT_FOUND;\r | |
541 | }\r | |
542 | \r | |
80408db0 | 543 | InvokeCallbackOnSet (ExTokenNumber, Guid, TokenNumber, Data, *Size);\r |
544 | \r | |
545 | return SetWorker (TokenNumber, Data, Size, PtrType);\r | |
546 | \r | |
547 | }\r | |
548 | \r | |
fc547e08 | 549 | /**\r |
550 | Wrapper function for get PCD value for dynamic-ex PCD.\r | |
80408db0 | 551 | \r |
fc547e08 | 552 | @param Guid Token space guid for dynamic-ex PCD.\r |
553 | @param ExTokenNumber Token number for dyanmic-ex PCD.\r | |
554 | @param GetSize The size of dynamic-ex PCD value.\r | |
80408db0 | 555 | \r |
fc547e08 | 556 | @return PCD entry in PCD database.\r |
80408db0 | 557 | \r |
fc547e08 | 558 | **/\r |
80408db0 | 559 | VOID *\r |
560 | ExGetWorker (\r | |
561 | IN CONST EFI_GUID *Guid,\r | |
562 | IN UINTN ExTokenNumber,\r | |
563 | IN UINTN GetSize\r | |
564 | )\r | |
f806dd27 | 565 | { \r |
80408db0 | 566 | return GetWorker (GetExPcdTokenNumber (Guid, ExTokenNumber), GetSize);\r |
567 | }\r | |
568 | \r | |
fc547e08 | 569 | /**\r |
570 | Get the PCD entry pointer in PCD database.\r | |
571 | \r | |
572 | This routine will visit PCD database to find the PCD entry according to given\r | |
573 | token number. The given token number is autogened by build tools and it will be \r | |
574 | translated to local token number. Local token number contains PCD's type and \r | |
575 | offset of PCD entry in PCD database.\r | |
80408db0 | 576 | \r |
fc547e08 | 577 | @param TokenNumber Token's number, it is autogened by build tools\r |
578 | @param GetSize The size of token's value\r | |
80408db0 | 579 | \r |
fc547e08 | 580 | @return PCD entry pointer in PCD database\r |
80408db0 | 581 | \r |
fc547e08 | 582 | **/\r |
80408db0 | 583 | VOID *\r |
584 | GetWorker (\r | |
fc547e08 | 585 | IN UINTN TokenNumber,\r |
586 | IN UINTN GetSize\r | |
80408db0 | 587 | )\r |
588 | {\r | |
589 | UINT32 Offset;\r | |
590 | EFI_GUID *Guid;\r | |
591 | UINT16 *Name;\r | |
592 | VARIABLE_HEAD *VariableHead;\r | |
593 | EFI_STATUS Status;\r | |
594 | UINTN DataSize;\r | |
595 | VOID *Data;\r | |
d0965169 | 596 | UINT8 *StringTable;\r |
80408db0 | 597 | UINT16 StringTableIdx;\r |
598 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
599 | UINT32 LocalTokenNumber;\r | |
600 | UINTN MaxSize;\r | |
601 | \r | |
602 | //\r | |
603 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
604 | // We have to decrement TokenNumber by 1 to make it usable\r | |
605 | // as the array index.\r | |
606 | //\r | |
607 | TokenNumber--;\r | |
608 | \r | |
609 | // EBC compiler is very choosy. It may report warning about comparison\r | |
610 | // between UINTN and 0 . So we add 1 in each size of the \r | |
611 | // comparison.\r | |
612 | ASSERT (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
613 | \r | |
614 | ASSERT ((GetSize == PeiPcdGetSize(TokenNumber + 1)) || (GetSize == 0));\r | |
615 | \r | |
616 | PeiPcdDb = GetPcdDatabase ();\r | |
617 | \r | |
618 | LocalTokenNumber = PeiPcdDb->Init.LocalTokenNumberTable[TokenNumber];\r | |
619 | \r | |
620 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r | |
621 | if (GetSize == 0) {\r | |
573e0a48 | 622 | GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r |
80408db0 | 623 | } else {\r |
624 | MaxSize = GetSize;\r | |
625 | }\r | |
626 | LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize);\r | |
627 | }\r | |
628 | \r | |
629 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
630 | StringTable = PeiPcdDb->Init.StringTable;\r | |
631 | \r | |
632 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
633 | case PCD_TYPE_VPD:\r | |
634 | {\r | |
635 | VPD_HEAD *VpdHead;\r | |
636 | VpdHead = (VPD_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
188e4e84 | 637 | return (VOID *) (UINTN) (PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset);\r |
80408db0 | 638 | }\r |
639 | \r | |
6ac15f7c | 640 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r |
80408db0 | 641 | case PCD_TYPE_HII:\r |
642 | {\r | |
643 | VariableHead = (VARIABLE_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
644 | \r | |
645 | Guid = &(PeiPcdDb->Init.GuidTable[VariableHead->GuidTableIndex]);\r | |
d0965169 | 646 | Name = (UINT16*)&StringTable[VariableHead->StringIndex];\r |
80408db0 | 647 | \r |
648 | Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r | |
649 | \r | |
650 | if (Status == EFI_SUCCESS) {\r | |
651 | return (VOID *) ((UINT8 *) Data + VariableHead->Offset);\r | |
652 | } else {\r | |
653 | //\r | |
654 | // Return the default value specified by Platform Integrator \r | |
655 | //\r | |
6ac15f7c | 656 | if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r |
657 | return (VOID*)&StringTable[*(UINT16*)((UINT8*)PeiPcdDb + VariableHead->DefaultValueOffset)];\r | |
658 | } else {\r | |
659 | return (VOID *) ((UINT8 *) PeiPcdDb + VariableHead->DefaultValueOffset);\r | |
660 | }\r | |
80408db0 | 661 | }\r |
662 | }\r | |
663 | \r | |
664 | case PCD_TYPE_DATA:\r | |
665 | return (VOID *) ((UINT8 *)PeiPcdDb + Offset);\r | |
666 | \r | |
667 | case PCD_TYPE_STRING:\r | |
2ef9435a | 668 | StringTableIdx = * (UINT16*) ((UINT8 *) PeiPcdDb + Offset);\r |
80408db0 | 669 | return (VOID *) (&StringTable[StringTableIdx]);\r |
670 | \r | |
671 | default:\r | |
672 | ASSERT (FALSE);\r | |
673 | break;\r | |
674 | \r | |
675 | }\r | |
676 | \r | |
677 | ASSERT (FALSE);\r | |
678 | \r | |
679 | return NULL;\r | |
680 | \r | |
681 | }\r | |
682 | \r | |
fc547e08 | 683 | /**\r |
684 | Get local token number according to dynamic-ex PCD's {token space guid:token number}\r | |
685 | \r | |
686 | A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r | |
687 | in DEC file. PCD database maintain a mapping table that translate pair of {token\r | |
688 | space guid: token number} to local token number.\r | |
689 | \r | |
690 | @param Guid Token space guid for dynamic-ex PCD entry.\r | |
691 | @param ExTokenNumber EDES_TODO: Add parameter description\r | |
80408db0 | 692 | \r |
fc547e08 | 693 | @return local token number for dynamic-ex PCD.\r |
80408db0 | 694 | \r |
fc547e08 | 695 | **/\r |
80408db0 | 696 | UINTN \r |
697 | GetExPcdTokenNumber (\r | |
698 | IN CONST EFI_GUID *Guid,\r | |
699 | IN UINTN ExTokenNumber\r | |
700 | )\r | |
701 | {\r | |
fc547e08 | 702 | UINT32 Index;\r |
80408db0 | 703 | DYNAMICEX_MAPPING *ExMap;\r |
704 | EFI_GUID *GuidTable;\r | |
705 | EFI_GUID *MatchGuid;\r | |
706 | UINTN MatchGuidIdx;\r | |
707 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
708 | \r | |
709 | PeiPcdDb = GetPcdDatabase();\r | |
710 | \r | |
711 | ExMap = PeiPcdDb->Init.ExMapTable;\r | |
712 | GuidTable = PeiPcdDb->Init.GuidTable;\r | |
713 | \r | |
714 | MatchGuid = ScanGuid (GuidTable, sizeof(PeiPcdDb->Init.GuidTable), Guid);\r | |
715 | //\r | |
716 | // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r | |
717 | // error in the BUILD system.\r | |
718 | //\r | |
719 | ASSERT (MatchGuid != NULL);\r | |
720 | \r | |
721 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
722 | \r | |
fc547e08 | 723 | for (Index = 0; Index < PEI_EXMAPPING_TABLE_SIZE; Index++) {\r |
724 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) && \r | |
725 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
726 | return ExMap[Index].LocalTokenNumber;\r | |
80408db0 | 727 | }\r |
728 | }\r | |
729 | \r | |
86714ccd | 730 | return PCD_INVALID_TOKEN_NUMBER;\r |
80408db0 | 731 | }\r |
732 | \r | |
fc547e08 | 733 | /**\r |
734 | Get PCD database from GUID HOB in PEI phase.\r | |
80408db0 | 735 | \r |
fc547e08 | 736 | @return Pointer to PCD database.\r |
80408db0 | 737 | \r |
fc547e08 | 738 | **/\r |
80408db0 | 739 | PEI_PCD_DATABASE *\r |
740 | GetPcdDatabase (\r | |
741 | VOID\r | |
742 | )\r | |
743 | {\r | |
744 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
745 | \r | |
746 | GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r | |
747 | ASSERT (GuidHob != NULL);\r | |
748 | \r | |
749 | return (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r | |
750 | }\r | |
751 | \r | |
fc547e08 | 752 | /**\r |
753 | Get SKU ID tabble from PCD database.\r | |
754 | \r | |
755 | @param LocalTokenNumberTableIdx Index of local token number in token number table.\r | |
756 | @param Database PCD database.\r | |
80408db0 | 757 | \r |
fc547e08 | 758 | @return Pointer to SKU ID array table\r |
80408db0 | 759 | \r |
fc547e08 | 760 | **/\r |
80408db0 | 761 | SKU_ID *\r |
762 | GetSkuIdArray (\r | |
763 | IN UINTN LocalTokenNumberTableIdx,\r | |
764 | IN PEI_PCD_DATABASE *Database\r | |
765 | )\r | |
766 | {\r | |
767 | SKU_HEAD *SkuHead;\r | |
768 | UINTN LocalTokenNumber;\r | |
769 | \r | |
770 | LocalTokenNumber = Database->Init.LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
771 | \r | |
772 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0);\r | |
773 | \r | |
774 | SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
775 | \r | |
776 | return (SKU_ID *) ((UINT8 *)Database + SkuHead->SkuIdTableOffset);\r | |
777 | \r | |
778 | }\r | |
779 | \r | |
fc547e08 | 780 | /**\r |
781 | Get index of PCD entry in size table.\r | |
782 | \r | |
783 | @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r | |
784 | @param Database Pointer to PCD database in PEI phase.\r | |
80408db0 | 785 | \r |
fc547e08 | 786 | @return index of PCD entry in size table.\r |
80408db0 | 787 | \r |
fc547e08 | 788 | **/\r |
80408db0 | 789 | UINTN\r |
790 | GetSizeTableIndex (\r | |
791 | IN UINTN LocalTokenNumberTableIdx,\r | |
792 | IN PEI_PCD_DATABASE *Database\r | |
793 | )\r | |
794 | {\r | |
fc547e08 | 795 | UINTN Index;\r |
80408db0 | 796 | UINTN SizeTableIdx;\r |
797 | UINTN LocalTokenNumber;\r | |
798 | SKU_ID *SkuIdTable;\r | |
799 | \r | |
800 | SizeTableIdx = 0;\r | |
801 | \r | |
fc547e08 | 802 | for (Index=0; Index<LocalTokenNumberTableIdx; Index++) {\r |
803 | LocalTokenNumber = Database->Init.LocalTokenNumberTable[Index];\r | |
80408db0 | 804 | \r |
805 | if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r | |
806 | //\r | |
807 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
808 | // PCD entry.\r | |
809 | //\r | |
fc547e08 | 810 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r |
80408db0 | 811 | //\r |
812 | // We have only one entry for VPD enabled PCD entry:\r | |
813 | // 1) MAX Size.\r | |
814 | // We consider current size is equal to MAX size.\r | |
815 | //\r | |
816 | SizeTableIdx++;\r | |
817 | } else {\r | |
818 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
819 | //\r | |
820 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
821 | // 1) MAX SIZE\r | |
822 | // 2) Current Size\r | |
823 | //\r | |
824 | SizeTableIdx += 2;\r | |
825 | } else {\r | |
826 | //\r | |
827 | // We have these entry for SKU enabled PCD entry\r | |
828 | // 1) MAX SIZE\r | |
829 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
830 | //\r | |
fc547e08 | 831 | SkuIdTable = GetSkuIdArray (Index, Database);\r |
80408db0 | 832 | SizeTableIdx += (UINTN)*SkuIdTable + 1;\r |
833 | }\r | |
834 | }\r | |
835 | }\r | |
836 | \r | |
837 | }\r | |
838 | \r | |
839 | return SizeTableIdx;\r | |
840 | }\r |