]>
Commit | Line | Data |
---|---|---|
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 |
419db80b | 5 | Copyright (c) 2006 - 2013, 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 | |
96d6d004 SZ |
18 | /**\r |
19 | Get Local Token Number by Token Number.\r | |
20 | \r | |
21 | @param[in] Database PCD database.\r | |
22 | @param[in] TokenNumber The PCD token number.\r | |
23 | \r | |
24 | @return Local Token Number.\r | |
25 | **/\r | |
26 | UINT32\r | |
27 | GetLocalTokenNumber (\r | |
28 | IN PEI_PCD_DATABASE *Database,\r | |
29 | IN UINTN TokenNumber\r | |
30 | )\r | |
31 | {\r | |
32 | UINT32 LocalTokenNumber;\r | |
33 | UINTN Size;\r | |
34 | UINTN MaxSize;\r | |
35 | \r | |
36 | //\r | |
37 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
38 | // We have to decrement TokenNumber by 1 to make it usable\r | |
39 | // as the array index.\r | |
40 | //\r | |
41 | TokenNumber--;\r | |
42 | \r | |
43 | LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + TokenNumber);\r | |
44 | \r | |
45 | Size = (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r | |
46 | \r | |
47 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r | |
48 | if (Size == 0) {\r | |
49 | GetPtrTypeSize (TokenNumber, &MaxSize, Database);\r | |
50 | } else {\r | |
51 | MaxSize = Size;\r | |
52 | }\r | |
53 | LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize);\r | |
54 | }\r | |
55 | \r | |
56 | return LocalTokenNumber;\r | |
57 | }\r | |
58 | \r | |
59 | /**\r | |
60 | Get PCD type by Local Token Number.\r | |
61 | \r | |
62 | @param[in] LocalTokenNumber The PCD local token number.\r | |
63 | \r | |
64 | @return PCD type.\r | |
65 | **/\r | |
66 | EFI_PCD_TYPE\r | |
67 | GetPcdType (\r | |
68 | IN UINT32 LocalTokenNumber\r | |
69 | )\r | |
70 | {\r | |
71 | switch (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) {\r | |
72 | case PCD_DATUM_TYPE_POINTER:\r | |
73 | return EFI_PCD_TYPE_PTR;\r | |
74 | case PCD_DATUM_TYPE_UINT8:\r | |
75 | if (LocalTokenNumber & PCD_DATUM_TYPE_UINT8_BOOLEAN) {\r | |
76 | return EFI_PCD_TYPE_BOOL;\r | |
77 | } else {\r | |
78 | return EFI_PCD_TYPE_8;\r | |
79 | }\r | |
80 | case PCD_DATUM_TYPE_UINT16:\r | |
81 | return EFI_PCD_TYPE_16;\r | |
82 | case PCD_DATUM_TYPE_UINT32:\r | |
83 | return EFI_PCD_TYPE_32;\r | |
84 | case PCD_DATUM_TYPE_UINT64:\r | |
85 | return EFI_PCD_TYPE_64;\r | |
86 | default:\r | |
87 | ASSERT (FALSE);\r | |
88 | return EFI_PCD_TYPE_8;\r | |
89 | }\r | |
90 | }\r | |
91 | \r | |
92 | /**\r | |
93 | Get PCD name.\r | |
94 | \r | |
95 | @param[in] OnlyTokenSpaceName If TRUE, only need to get the TokenSpaceCName.\r | |
96 | If FALSE, need to get the full PCD name.\r | |
97 | @param[in] Database PCD database.\r | |
98 | @param[in] TokenNumber The PCD token number.\r | |
99 | \r | |
100 | @return The TokenSpaceCName or full PCD name.\r | |
101 | **/\r | |
102 | CHAR8 *\r | |
103 | GetPcdName (\r | |
104 | IN BOOLEAN OnlyTokenSpaceName,\r | |
105 | IN PEI_PCD_DATABASE *Database,\r | |
106 | IN UINTN TokenNumber\r | |
107 | )\r | |
108 | {\r | |
109 | UINT8 *StringTable;\r | |
110 | PCD_NAME_INDEX *PcdNameIndex;\r | |
111 | CHAR8 *TokenSpaceName;\r | |
112 | CHAR8 *PcdName;\r | |
113 | CHAR8 *Name;\r | |
114 | \r | |
115 | //\r | |
116 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
117 | // We have to decrement TokenNumber by 1 to make it usable\r | |
118 | // as the array index.\r | |
119 | //\r | |
120 | TokenNumber--;\r | |
121 | \r | |
122 | StringTable = (UINT8 *) Database + Database->StringTableOffset;\r | |
123 | \r | |
124 | //\r | |
125 | // Get the PCD name index.\r | |
126 | //\r | |
127 | PcdNameIndex = (PCD_NAME_INDEX *)((UINT8 *) Database + Database->PcdNameTableOffset) + TokenNumber;\r | |
128 | TokenSpaceName = (CHAR8 *)&StringTable[PcdNameIndex->TokenSpaceCNameIndex];\r | |
129 | PcdName = (CHAR8 *)&StringTable[PcdNameIndex->PcdCNameIndex];\r | |
130 | \r | |
131 | if (OnlyTokenSpaceName) {\r | |
132 | //\r | |
133 | // Only need to get the TokenSpaceCName.\r | |
134 | //\r | |
135 | Name = AllocateCopyPool (AsciiStrSize (TokenSpaceName), TokenSpaceName);\r | |
136 | } else {\r | |
137 | //\r | |
138 | // Need to get the full PCD name.\r | |
139 | //\r | |
140 | Name = AllocateZeroPool (AsciiStrSize (TokenSpaceName) + AsciiStrSize (PcdName));\r | |
141 | //\r | |
142 | // Catenate TokenSpaceCName and PcdCName with a '.' to form the full PCD name.\r | |
143 | //\r | |
144 | AsciiStrCat (Name, TokenSpaceName);\r | |
145 | Name[AsciiStrSize (TokenSpaceName) - sizeof (CHAR8)] = '.';\r | |
146 | AsciiStrCat (Name, PcdName); \r | |
147 | }\r | |
148 | \r | |
149 | return Name;\r | |
150 | }\r | |
151 | \r | |
152 | /**\r | |
153 | Retrieve additional information associated with a PCD token.\r | |
154 | \r | |
155 | This includes information such as the type of value the TokenNumber is associated with as well as possible\r | |
156 | human readable name that is associated with the token.\r | |
157 | \r | |
158 | @param[in] Database PCD database.\r | |
159 | @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r | |
160 | @param[in] TokenNumber The PCD token number.\r | |
161 | @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r | |
162 | The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName. \r | |
163 | \r | |
164 | @retval EFI_SUCCESS The PCD information was returned successfully\r | |
165 | @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r | |
166 | **/\r | |
167 | EFI_STATUS\r | |
168 | ExGetPcdInfo (\r | |
169 | IN PEI_PCD_DATABASE *Database,\r | |
170 | IN CONST EFI_GUID *Guid,\r | |
171 | IN UINTN TokenNumber,\r | |
172 | OUT EFI_PCD_INFO *PcdInfo\r | |
173 | )\r | |
174 | {\r | |
175 | UINTN GuidTableIdx;\r | |
176 | EFI_GUID *MatchGuid;\r | |
177 | EFI_GUID *GuidTable;\r | |
178 | DYNAMICEX_MAPPING *ExMapTable;\r | |
179 | UINTN Index;\r | |
180 | UINT32 LocalTokenNumber;\r | |
181 | \r | |
182 | GuidTable = (EFI_GUID *)((UINT8 *)Database + Database->GuidTableOffset);\r | |
183 | MatchGuid = ScanGuid (GuidTable, Database->GuidTableCount * sizeof(EFI_GUID), Guid);\r | |
184 | \r | |
185 | if (MatchGuid == NULL) {\r | |
186 | return EFI_NOT_FOUND;\r | |
187 | }\r | |
188 | \r | |
189 | GuidTableIdx = MatchGuid - GuidTable;\r | |
190 | \r | |
191 | ExMapTable = (DYNAMICEX_MAPPING *)((UINT8 *)Database + Database->ExMapTableOffset);\r | |
192 | \r | |
193 | //\r | |
194 | // Find the PCD by GuidTableIdx and ExTokenNumber in ExMapTable.\r | |
195 | //\r | |
196 | for (Index = 0; Index < Database->ExTokenCount; Index++) {\r | |
197 | if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
198 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
199 | //\r | |
200 | // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r | |
201 | // PcdSize to 0 and PcdName to the null-terminated ASCII string\r | |
202 | // associated with the token's namespace Guid.\r | |
203 | //\r | |
204 | PcdInfo->PcdType = EFI_PCD_TYPE_8;\r | |
205 | PcdInfo->PcdSize = 0;\r | |
206 | //\r | |
207 | // Here use one representative in the token space to get the TokenSpaceCName.\r | |
208 | // \r | |
209 | PcdInfo->PcdName = GetPcdName (TRUE, Database, ExMapTable[Index].TokenNumber);\r | |
210 | return EFI_SUCCESS;\r | |
211 | } else if (ExMapTable[Index].ExTokenNumber == TokenNumber) {\r | |
212 | PcdInfo->PcdSize = PeiPcdGetSize (ExMapTable[Index].TokenNumber);\r | |
213 | LocalTokenNumber = GetLocalTokenNumber (Database, ExMapTable[Index].TokenNumber);\r | |
214 | PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r | |
215 | PcdInfo->PcdName = GetPcdName (FALSE, Database, ExMapTable[Index].TokenNumber);\r | |
216 | return EFI_SUCCESS;\r | |
217 | }\r | |
218 | }\r | |
219 | }\r | |
220 | \r | |
221 | return EFI_NOT_FOUND;\r | |
222 | }\r | |
223 | \r | |
224 | /**\r | |
225 | Retrieve additional information associated with a PCD token.\r | |
226 | \r | |
227 | This includes information such as the type of value the TokenNumber is associated with as well as possible\r | |
228 | human readable name that is associated with the token.\r | |
229 | \r | |
230 | @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r | |
231 | @param[in] TokenNumber The PCD token number.\r | |
232 | @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r | |
233 | The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.\r | |
234 | \r | |
235 | @retval EFI_SUCCESS The PCD information was returned successfully.\r | |
236 | @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r | |
237 | **/\r | |
238 | EFI_STATUS\r | |
239 | PeiGetPcdInfo (\r | |
240 | IN CONST EFI_GUID *Guid,\r | |
241 | IN UINTN TokenNumber,\r | |
242 | OUT EFI_PCD_INFO *PcdInfo\r | |
243 | )\r | |
244 | {\r | |
245 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
246 | BOOLEAN PeiExMapTableEmpty;\r | |
247 | UINTN PeiNexTokenNumber;\r | |
248 | UINT32 LocalTokenNumber;\r | |
249 | \r | |
250 | if (!FeaturePcdGet (PcdPcdInfoGeneration)) {\r | |
251 | return EFI_UNSUPPORTED;\r | |
252 | }\r | |
253 | \r | |
254 | ASSERT (PcdInfo != NULL);\r | |
255 | \r | |
256 | PeiPcdDb = GetPcdDatabase ();\r | |
257 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r | |
258 | \r | |
259 | if (PeiPcdDb->ExTokenCount == 0) {\r | |
260 | PeiExMapTableEmpty = TRUE;\r | |
261 | } else {\r | |
262 | PeiExMapTableEmpty = FALSE;\r | |
263 | }\r | |
264 | \r | |
265 | if (Guid == NULL) {\r | |
266 | if (TokenNumber > PeiNexTokenNumber) {\r | |
267 | return EFI_NOT_FOUND;\r | |
268 | } else if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
269 | //\r | |
270 | // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r | |
271 | // PcdSize to 0 and PcdName to NULL for default Token Space.\r | |
272 | //\r | |
273 | PcdInfo->PcdType = EFI_PCD_TYPE_8;\r | |
274 | PcdInfo->PcdSize = 0;\r | |
275 | PcdInfo->PcdName = NULL;\r | |
276 | } else {\r | |
277 | PcdInfo->PcdSize = PeiPcdGetSize (TokenNumber);\r | |
278 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber);\r | |
279 | PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r | |
280 | PcdInfo->PcdName = GetPcdName (FALSE, PeiPcdDb, TokenNumber);\r | |
281 | }\r | |
282 | return EFI_SUCCESS;\r | |
283 | } else {\r | |
284 | if (PeiExMapTableEmpty) {\r | |
285 | return EFI_NOT_FOUND;\r | |
286 | }\r | |
287 | return ExGetPcdInfo (\r | |
288 | PeiPcdDb,\r | |
289 | Guid,\r | |
290 | TokenNumber,\r | |
291 | PcdInfo\r | |
292 | );\r | |
293 | }\r | |
294 | }\r | |
295 | \r | |
80408db0 | 296 | /**\r |
297 | The function registers the CallBackOnSet fucntion\r | |
298 | according to TokenNumber and EFI_GUID space.\r | |
299 | \r | |
fc547e08 | 300 | @param ExTokenNumber The token number.\r |
80408db0 | 301 | @param Guid The GUID space.\r |
302 | @param CallBackFunction The Callback function to be registered.\r | |
303 | @param Register To register or unregister the callback function.\r | |
304 | \r | |
305 | @retval EFI_SUCCESS If the Callback function is registered.\r | |
306 | @retval EFI_NOT_FOUND If the PCD Entry is not found according to Token Number and GUID space.\r | |
307 | @retval EFI_OUT_OF_RESOURCES If the callback function can't be registered because there is not free\r | |
308 | slot left in the CallbackFnTable.\r | |
8ec8bed4 | 309 | @retval EFI_INVALID_PARAMETER If the callback function want to be de-registered can not be found.\r |
fc547e08 | 310 | **/\r |
80408db0 | 311 | EFI_STATUS\r |
312 | PeiRegisterCallBackWorker (\r | |
313 | IN UINTN ExTokenNumber,\r | |
314 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
315 | IN PCD_PPI_CALLBACK CallBackFunction,\r | |
316 | IN BOOLEAN Register\r | |
317 | )\r | |
318 | {\r | |
319 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
320 | PCD_PPI_CALLBACK *CallbackTable;\r | |
321 | PCD_PPI_CALLBACK Compare;\r | |
322 | PCD_PPI_CALLBACK Assign;\r | |
323 | UINT32 LocalTokenNumber;\r | |
419db80b BF |
324 | UINT32 LocalTokenCount;\r |
325 | UINTN PeiNexTokenNumber;\r | |
80408db0 | 326 | UINTN TokenNumber;\r |
327 | UINTN Idx;\r | |
419db80b BF |
328 | PEI_PCD_DATABASE *PeiPcdDb;\r |
329 | \r | |
330 | PeiPcdDb = GetPcdDatabase();\r | |
331 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
332 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r | |
80408db0 | 333 | \r |
334 | if (Guid == NULL) {\r | |
335 | TokenNumber = ExTokenNumber;\r | |
80408db0 | 336 | //\r |
337 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
338 | // We have to decrement TokenNumber by 1 to make it usable\r | |
339 | // as the array index.\r | |
340 | //\r | |
341 | TokenNumber--;\r | |
419db80b | 342 | ASSERT (TokenNumber + 1 < (PeiNexTokenNumber + 1));\r |
80408db0 | 343 | } else {\r |
344 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
86714ccd | 345 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
346 | return EFI_NOT_FOUND;\r | |
347 | }\r | |
80408db0 | 348 | //\r |
349 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
350 | // We have to decrement TokenNumber by 1 to make it usable\r | |
351 | // as the array index.\r | |
352 | //\r | |
353 | TokenNumber--;\r | |
354 | // EBC compiler is very choosy. It may report warning about comparison\r | |
355 | // between UINTN and 0 . So we add 1 in each size of the \r | |
356 | // comparison.\r | |
419db80b | 357 | ASSERT ((TokenNumber + 1) < (LocalTokenCount + 1));\r |
80408db0 | 358 | }\r |
359 | \r | |
360 | \r | |
419db80b | 361 | LocalTokenNumber = *((UINT32 *)((UINT8 *)PeiPcdDb + PeiPcdDb->LocalTokenNumberTableOffset) + TokenNumber);\r |
80408db0 | 362 | \r |
363 | //\r | |
364 | // We don't support SET for HII and VPD type PCD entry in PEI phase.\r | |
365 | // So we will assert if any register callback for such PCD entry.\r | |
366 | //\r | |
367 | ASSERT ((LocalTokenNumber & PCD_TYPE_HII) == 0);\r | |
368 | ASSERT ((LocalTokenNumber & PCD_TYPE_VPD) == 0);\r | |
369 | \r | |
96cb78a1 | 370 | GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r |
80408db0 | 371 | ASSERT (GuidHob != NULL);\r |
372 | \r | |
373 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r | |
188e4e84 | 374 | CallbackTable = CallbackTable + (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r |
80408db0 | 375 | \r |
376 | Compare = Register? NULL: CallBackFunction;\r | |
377 | Assign = Register? CallBackFunction: NULL;\r | |
378 | \r | |
379 | \r | |
188e4e84 | 380 | for (Idx = 0; Idx < PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r |
80408db0 | 381 | if (CallbackTable[Idx] == Compare) {\r |
382 | CallbackTable[Idx] = Assign;\r | |
383 | return EFI_SUCCESS;\r | |
384 | }\r | |
385 | }\r | |
386 | \r | |
8ec8bed4 | 387 | return Register? EFI_OUT_OF_RESOURCES : EFI_INVALID_PARAMETER;\r |
80408db0 | 388 | \r |
389 | }\r | |
390 | \r | |
419db80b BF |
391 | \r |
392 | /**\r | |
393 | Find the Pcd database. \r | |
394 | \r | |
395 | @param FileHandle Handle of the file the external PCD database binary located.\r | |
396 | \r | |
397 | @retval The base address of external PCD database binary.\r | |
398 | @retval NULL Return NULL if not find.\r | |
399 | **/\r | |
400 | VOID *\r | |
401 | LocateExPcdBinary (\r | |
402 | IN EFI_PEI_FILE_HANDLE FileHandle\r | |
403 | )\r | |
404 | {\r | |
405 | EFI_STATUS Status;\r | |
406 | VOID *PcdDb;\r | |
407 | \r | |
408 | PcdDb = NULL;\r | |
409 | \r | |
410 | ASSERT (FileHandle != NULL);\r | |
411 | \r | |
412 | Status = PeiServicesFfsFindSectionData (EFI_SECTION_RAW, FileHandle, &PcdDb);\r | |
413 | ASSERT_EFI_ERROR (Status);\r | |
414 | \r | |
415 | //\r | |
416 | // Check the first bytes (Header Signature Guid) and build version.\r | |
417 | //\r | |
418 | if (!CompareGuid (PcdDb, &gPcdDataBaseSignatureGuid) ||\r | |
419 | (((PEI_PCD_DATABASE *) PcdDb)->BuildVersion != PCD_SERVICE_PEIM_VERSION)) {\r | |
420 | ASSERT (FALSE);\r | |
421 | }\r | |
422 | return PcdDb;\r | |
423 | }\r | |
424 | \r | |
425 | \r | |
80408db0 | 426 | /**\r |
427 | The function builds the PCD database.\r | |
419db80b BF |
428 | \r |
429 | @param FileHandle Handle of the file the external PCD database binary located.\r | |
430 | \r | |
96d6d004 | 431 | @return Pointer to PCD database.\r |
fc547e08 | 432 | **/\r |
96d6d004 | 433 | PEI_PCD_DATABASE *\r |
80408db0 | 434 | BuildPcdDatabase (\r |
419db80b | 435 | IN EFI_PEI_FILE_HANDLE FileHandle\r |
80408db0 | 436 | )\r |
437 | {\r | |
419db80b BF |
438 | PEI_PCD_DATABASE *Database;\r |
439 | PEI_PCD_DATABASE *PeiPcdDbBinary;\r | |
440 | VOID *CallbackFnTable;\r | |
441 | UINTN SizeOfCallbackFnTable;\r | |
442 | \r | |
443 | //\r | |
444 | // Locate the external PCD database binary for one section of current FFS\r | |
445 | //\r | |
446 | PeiPcdDbBinary = LocateExPcdBinary (FileHandle);\r | |
80408db0 | 447 | \r |
419db80b BF |
448 | ASSERT(PeiPcdDbBinary != NULL);\r |
449 | \r | |
450 | Database = BuildGuidHob (&gPcdDataBaseHobGuid, PeiPcdDbBinary->Length + PeiPcdDbBinary->UninitDataBaseSize);\r | |
451 | \r | |
452 | ZeroMem (Database, PeiPcdDbBinary->Length + PeiPcdDbBinary->UninitDataBaseSize);\r | |
80408db0 | 453 | \r |
454 | //\r | |
419db80b | 455 | // PeiPcdDbBinary is smaller than Database\r |
80408db0 | 456 | //\r |
419db80b | 457 | CopyMem (Database, PeiPcdDbBinary, PeiPcdDbBinary->Length);\r |
80408db0 | 458 | \r |
419db80b | 459 | SizeOfCallbackFnTable = Database->LocalTokenCount * sizeof (PCD_PPI_CALLBACK) * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry);\r |
80408db0 | 460 | \r |
96cb78a1 | 461 | CallbackFnTable = BuildGuidHob (&gEfiCallerIdGuid, SizeOfCallbackFnTable);\r |
80408db0 | 462 | \r |
463 | ZeroMem (CallbackFnTable, SizeOfCallbackFnTable);\r | |
96d6d004 SZ |
464 | \r |
465 | return Database;\r | |
80408db0 | 466 | }\r |
467 | \r | |
80408db0 | 468 | /**\r |
469 | The function is provided by PCD PEIM and PCD DXE driver to\r | |
470 | do the work of reading a HII variable from variable service.\r | |
471 | \r | |
472 | @param VariableGuid The Variable GUID.\r | |
473 | @param VariableName The Variable Name.\r | |
474 | @param VariableData The output data.\r | |
475 | @param VariableSize The size of the variable.\r | |
476 | \r | |
477 | @retval EFI_SUCCESS Operation successful.\r | |
478 | @retval EFI_NOT_FOUND Variablel not found.\r | |
fc547e08 | 479 | **/\r |
80408db0 | 480 | EFI_STATUS\r |
481 | GetHiiVariable (\r | |
482 | IN CONST EFI_GUID *VariableGuid,\r | |
483 | IN UINT16 *VariableName,\r | |
484 | OUT VOID **VariableData,\r | |
485 | OUT UINTN *VariableSize\r | |
486 | )\r | |
487 | {\r | |
488 | UINTN Size;\r | |
489 | EFI_STATUS Status;\r | |
490 | VOID *Buffer;\r | |
97a079ed | 491 | EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariablePpi;\r |
80408db0 | 492 | \r |
97a079ed | 493 | Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariable2PpiGuid, 0, NULL, (VOID **) &VariablePpi);\r |
80408db0 | 494 | ASSERT_EFI_ERROR (Status);\r |
495 | \r | |
496 | Size = 0;\r | |
97a079ed A |
497 | Status = VariablePpi->GetVariable (\r |
498 | VariablePpi,\r | |
80408db0 | 499 | VariableName,\r |
500 | (EFI_GUID *) VariableGuid,\r | |
501 | NULL,\r | |
502 | &Size,\r | |
503 | NULL\r | |
97a079ed | 504 | );\r |
80408db0 | 505 | \r |
e5618791 | 506 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
80408db0 | 507 | Status = PeiServicesAllocatePool (Size, &Buffer);\r |
508 | ASSERT_EFI_ERROR (Status);\r | |
509 | \r | |
97a079ed A |
510 | Status = VariablePpi->GetVariable (\r |
511 | VariablePpi,\r | |
80408db0 | 512 | (UINT16 *) VariableName,\r |
513 | (EFI_GUID *) VariableGuid,\r | |
514 | NULL,\r | |
515 | &Size,\r | |
516 | Buffer\r | |
517 | );\r | |
518 | ASSERT_EFI_ERROR (Status);\r | |
519 | \r | |
520 | *VariableSize = Size;\r | |
521 | *VariableData = Buffer;\r | |
522 | \r | |
523 | return EFI_SUCCESS;\r | |
e5618791 | 524 | }\r |
80408db0 | 525 | \r |
fc547e08 | 526 | return EFI_NOT_FOUND;\r |
80408db0 | 527 | }\r |
528 | \r | |
fc547e08 | 529 | /**\r |
530 | Find the local token number according to system SKU ID.\r | |
531 | \r | |
532 | @param LocalTokenNumber PCD token number\r | |
533 | @param Size The size of PCD entry.\r | |
534 | \r | |
535 | @return Token number according to system SKU ID.\r | |
536 | \r | |
537 | **/\r | |
80408db0 | 538 | UINT32\r |
539 | GetSkuEnabledTokenNumber (\r | |
540 | UINT32 LocalTokenNumber,\r | |
541 | UINTN Size\r | |
542 | ) \r | |
543 | {\r | |
544 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
545 | SKU_HEAD *SkuHead;\r | |
546 | SKU_ID *SkuIdTable;\r | |
fc547e08 | 547 | INTN Index;\r |
80408db0 | 548 | UINT8 *Value;\r |
419db80b | 549 | BOOLEAN FoundSku;\r |
80408db0 | 550 | \r |
551 | PeiPcdDb = GetPcdDatabase ();\r | |
552 | \r | |
553 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);\r | |
554 | \r | |
555 | SkuHead = (SKU_HEAD *) ((UINT8 *)PeiPcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
556 | Value = (UINT8 *) ((UINT8 *)PeiPcdDb + (SkuHead->SkuDataStartOffset));\r | |
557 | SkuIdTable = (SKU_ID *) ((UINT8 *)PeiPcdDb + (SkuHead->SkuIdTableOffset));\r | |
419db80b BF |
558 | \r |
559 | //\r | |
560 | // Find the current system's SKU ID entry in SKU ID table.\r | |
561 | //\r | |
562 | FoundSku = FALSE;\r | |
fc547e08 | 563 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r |
419db80b BF |
564 | if (PeiPcdDb->SystemSkuId == SkuIdTable[Index + 1]) {\r |
565 | FoundSku = TRUE;\r | |
80408db0 | 566 | break;\r |
567 | }\r | |
568 | }\r | |
569 | \r | |
419db80b BF |
570 | //\r |
571 | // Find the default SKU ID entry in SKU ID table.\r | |
572 | //\r | |
573 | if(!FoundSku) {\r | |
574 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r | |
575 | if (0 == SkuIdTable[Index + 1]) {\r | |
576 | break;\r | |
577 | }\r | |
578 | }\r | |
579 | }\r | |
580 | ASSERT (Index < SkuIdTable[0]);\r | |
581 | \r | |
80408db0 | 582 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r |
583 | case PCD_TYPE_VPD:\r | |
fc547e08 | 584 | Value = (UINT8 *) &(((VPD_HEAD *) Value)[Index]);\r |
80408db0 | 585 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_VPD);\r |
586 | \r | |
587 | case PCD_TYPE_HII:\r | |
fc547e08 | 588 | Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r |
80408db0 | 589 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_HII);\r |
419db80b BF |
590 | \r |
591 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r | |
592 | Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r | |
593 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_HII | PCD_TYPE_STRING);\r | |
594 | \r | |
80408db0 | 595 | case PCD_TYPE_STRING:\r |
fc547e08 | 596 | Value = (UINT8 *) &(((STRING_HEAD *) Value)[Index]);\r |
80408db0 | 597 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_STRING);\r |
598 | \r | |
599 | case PCD_TYPE_DATA:\r | |
fc547e08 | 600 | Value += Size * Index;\r |
419db80b | 601 | return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_DATA);\r |
80408db0 | 602 | \r |
603 | default:\r | |
604 | ASSERT (FALSE);\r | |
605 | }\r | |
606 | \r | |
607 | ASSERT (FALSE);\r | |
608 | \r | |
609 | return 0;\r | |
80408db0 | 610 | }\r |
611 | \r | |
fc547e08 | 612 | /**\r |
613 | Invoke the callback function when dynamic PCD entry was set, if this PCD entry \r | |
614 | has registered callback function.\r | |
80408db0 | 615 | \r |
fc547e08 | 616 | @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r |
617 | type PCD.\r | |
618 | @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type\r | |
619 | PCD.\r | |
620 | @param TokenNumber PCD token number generated by build tools.\r | |
621 | @param Data Value want to be set for this PCD entry\r | |
622 | @param Size The size of value\r | |
80408db0 | 623 | \r |
fc547e08 | 624 | **/\r |
80408db0 | 625 | VOID\r |
626 | InvokeCallbackOnSet (\r | |
627 | UINTN ExTokenNumber,\r | |
628 | CONST EFI_GUID *Guid, OPTIONAL\r | |
629 | UINTN TokenNumber,\r | |
630 | VOID *Data,\r | |
631 | UINTN Size\r | |
632 | )\r | |
633 | {\r | |
634 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
635 | PCD_PPI_CALLBACK *CallbackTable;\r | |
636 | UINTN Idx;\r | |
419db80b BF |
637 | PEI_PCD_DATABASE *PeiPcdDb;\r |
638 | UINT32 LocalTokenCount;\r | |
80408db0 | 639 | \r |
640 | //\r | |
641 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
642 | // We have to decrement TokenNumber by 1 to make it usable\r | |
643 | // as the array index.\r | |
644 | //\r | |
645 | TokenNumber--;\r | |
419db80b BF |
646 | \r |
647 | PeiPcdDb = GetPcdDatabase ();\r | |
648 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
649 | \r | |
80408db0 | 650 | if (Guid == NULL) {\r |
651 | // EBC compiler is very choosy. It may report warning about comparison\r | |
652 | // between UINTN and 0 . So we add 1 in each size of the \r | |
653 | // comparison.\r | |
419db80b | 654 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 655 | }\r |
656 | \r | |
96cb78a1 | 657 | GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r |
80408db0 | 658 | ASSERT (GuidHob != NULL);\r |
659 | \r | |
660 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r | |
661 | \r | |
188e4e84 | 662 | CallbackTable += (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r |
80408db0 | 663 | \r |
188e4e84 | 664 | for (Idx = 0; Idx < PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r |
80408db0 | 665 | if (CallbackTable[Idx] != NULL) {\r |
666 | CallbackTable[Idx] (Guid,\r | |
736c5dd5 | 667 | (Guid == NULL) ? (TokenNumber + 1) : ExTokenNumber,\r |
80408db0 | 668 | Data,\r |
669 | Size\r | |
670 | );\r | |
671 | }\r | |
672 | }\r | |
80408db0 | 673 | }\r |
674 | \r | |
fc547e08 | 675 | /**\r |
676 | Wrapper function for setting non-pointer type value for a PCD entry.\r | |
677 | \r | |
678 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
679 | @param Data Value want to be set for PCD entry\r | |
680 | @param Size Size of value.\r | |
80408db0 | 681 | \r |
fc547e08 | 682 | @return status of SetWorker.\r |
80408db0 | 683 | \r |
fc547e08 | 684 | **/\r |
80408db0 | 685 | EFI_STATUS\r |
686 | SetValueWorker (\r | |
687 | IN UINTN TokenNumber,\r | |
688 | IN VOID *Data,\r | |
689 | IN UINTN Size\r | |
690 | )\r | |
691 | {\r | |
692 | return SetWorker (TokenNumber, Data, &Size, FALSE);\r | |
693 | }\r | |
694 | \r | |
fc547e08 | 695 | /**\r |
696 | Set value for an PCD entry\r | |
697 | \r | |
698 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
699 | @param Data Value want to be set for PCD entry\r | |
700 | @param Size Size of value.\r | |
701 | @param PtrType If TRUE, the type of PCD entry's value is Pointer.\r | |
702 | If False, the type of PCD entry's value is not Pointer.\r | |
703 | \r | |
704 | @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.\r | |
705 | @retval EFI_INVALID_PARAMETER If Size can not be set to size table.\r | |
149fb6d6 | 706 | @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database.\r |
fc547e08 | 707 | @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r |
708 | range of UINT8, UINT16, UINT32, UINT64\r | |
709 | @retval EFI_NOT_FOUND Can not find the PCD type according to token number. \r | |
710 | **/\r | |
80408db0 | 711 | EFI_STATUS\r |
712 | SetWorker (\r | |
713 | IN UINTN TokenNumber,\r | |
fc547e08 | 714 | IN VOID *Data,\r |
80408db0 | 715 | IN OUT UINTN *Size,\r |
716 | IN BOOLEAN PtrType\r | |
717 | )\r | |
718 | {\r | |
719 | UINT32 LocalTokenNumber;\r | |
419db80b | 720 | UINTN PeiNexTokenNumber;\r |
80408db0 | 721 | PEI_PCD_DATABASE *PeiPcdDb;\r |
6cfc7292 | 722 | STRING_HEAD StringTableIdx;\r |
80408db0 | 723 | UINTN Offset;\r |
724 | VOID *InternalData;\r | |
725 | UINTN MaxSize;\r | |
419db80b | 726 | UINT32 LocalTokenCount;\r |
80408db0 | 727 | \r |
f806dd27 | 728 | if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r |
80408db0 | 729 | return EFI_UNSUPPORTED;\r |
730 | }\r | |
731 | \r | |
732 | //\r | |
733 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
734 | // We have to decrement TokenNumber by 1 to make it usable\r | |
735 | // as the array index.\r | |
736 | //\r | |
737 | TokenNumber--;\r | |
419db80b BF |
738 | PeiPcdDb = GetPcdDatabase ();\r |
739 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
80408db0 | 740 | \r |
741 | // EBC compiler is very choosy. It may report warning about comparison\r | |
742 | // between UINTN and 0 . So we add 1 in each size of the \r | |
743 | // comparison.\r | |
419db80b | 744 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 745 | \r |
8ec8bed4 | 746 | if (PtrType) {\r |
64894410 LG |
747 | //\r |
748 | // Get MaxSize first, then check new size with max buffer size.\r | |
749 | //\r | |
750 | GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r | |
751 | if (*Size > MaxSize) {\r | |
cb40609c | 752 | *Size = MaxSize;\r |
8ec8bed4 | 753 | return EFI_INVALID_PARAMETER;\r |
754 | }\r | |
755 | } else {\r | |
756 | if (*Size != PeiPcdGetSize (TokenNumber + 1)) {\r | |
757 | return EFI_INVALID_PARAMETER;\r | |
758 | }\r | |
80408db0 | 759 | }\r |
760 | \r | |
761 | //\r | |
762 | // We only invoke the callback function for Dynamic Type PCD Entry.\r | |
763 | // For Dynamic EX PCD entry, we have invoked the callback function for Dynamic EX\r | |
764 | // type PCD entry in ExSetWorker.\r | |
765 | //\r | |
419db80b BF |
766 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r |
767 | if (TokenNumber + 1 < PeiNexTokenNumber + 1) {\r | |
80408db0 | 768 | InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r |
769 | }\r | |
770 | \r | |
96d6d004 | 771 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber + 1);\r |
80408db0 | 772 | \r |
773 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
774 | InternalData = (VOID *) ((UINT8 *) PeiPcdDb + Offset);\r | |
775 | \r | |
776 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
777 | case PCD_TYPE_VPD:\r | |
778 | case PCD_TYPE_HII:\r | |
6ac15f7c | 779 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r |
80408db0 | 780 | {\r |
781 | ASSERT (FALSE);\r | |
782 | return EFI_INVALID_PARAMETER;\r | |
783 | }\r | |
784 | \r | |
785 | case PCD_TYPE_STRING:\r | |
786 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
6cfc7292 | 787 | StringTableIdx = *((STRING_HEAD *)InternalData);\r |
419db80b | 788 | CopyMem ((UINT8 *)PeiPcdDb + PeiPcdDb->StringTableOffset + StringTableIdx, Data, *Size);\r |
80408db0 | 789 | return EFI_SUCCESS;\r |
790 | } else {\r | |
791 | return EFI_INVALID_PARAMETER;\r | |
792 | }\r | |
793 | \r | |
794 | case PCD_TYPE_DATA:\r | |
795 | {\r | |
796 | if (PtrType) {\r | |
797 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
798 | CopyMem (InternalData, Data, *Size);\r | |
799 | return EFI_SUCCESS;\r | |
800 | } else {\r | |
801 | return EFI_INVALID_PARAMETER;\r | |
802 | }\r | |
803 | }\r | |
804 | \r | |
805 | switch (*Size) {\r | |
806 | case sizeof(UINT8):\r | |
807 | *((UINT8 *) InternalData) = *((UINT8 *) Data);\r | |
808 | return EFI_SUCCESS;\r | |
809 | \r | |
810 | case sizeof(UINT16):\r | |
811 | *((UINT16 *) InternalData) = *((UINT16 *) Data);\r | |
812 | return EFI_SUCCESS;\r | |
813 | \r | |
814 | case sizeof(UINT32):\r | |
815 | *((UINT32 *) InternalData) = *((UINT32 *) Data);\r | |
816 | return EFI_SUCCESS;\r | |
817 | \r | |
818 | case sizeof(UINT64):\r | |
819 | *((UINT64 *) InternalData) = *((UINT64 *) Data);\r | |
820 | return EFI_SUCCESS;\r | |
821 | \r | |
822 | default:\r | |
823 | ASSERT (FALSE);\r | |
824 | return EFI_NOT_FOUND;\r | |
825 | }\r | |
826 | }\r | |
827 | \r | |
828 | }\r | |
829 | \r | |
830 | ASSERT (FALSE);\r | |
831 | return EFI_NOT_FOUND;\r | |
832 | \r | |
833 | }\r | |
834 | \r | |
fc547e08 | 835 | /**\r |
836 | Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.\r | |
80408db0 | 837 | \r |
fc547e08 | 838 | @param ExTokenNumber Token number for dynamic-ex PCD.\r |
839 | @param Guid Token space guid for dynamic-ex PCD.\r | |
840 | @param Data Value want to be set.\r | |
841 | @param SetSize The size of value.\r | |
80408db0 | 842 | \r |
fc547e08 | 843 | @return status of ExSetWorker().\r |
844 | \r | |
845 | **/\r | |
80408db0 | 846 | EFI_STATUS\r |
847 | ExSetValueWorker (\r | |
848 | IN UINTN ExTokenNumber,\r | |
849 | IN CONST EFI_GUID *Guid,\r | |
850 | IN VOID *Data,\r | |
851 | IN UINTN Size\r | |
852 | )\r | |
853 | {\r | |
854 | return ExSetWorker (ExTokenNumber, Guid, Data, &Size, FALSE);\r | |
855 | }\r | |
856 | \r | |
fc547e08 | 857 | /**\r |
419db80b | 858 | Set value for a dynamic-ex PCD entry.\r |
fc547e08 | 859 | \r |
860 | This routine find the local token number according to dynamic-ex PCD's token \r | |
861 | space guid and token number firstly, and invoke callback function if this PCD\r | |
862 | entry registered callback function. Finally, invoken general SetWorker to set\r | |
863 | PCD value.\r | |
864 | \r | |
865 | @param ExTokenNumber Dynamic-ex PCD token number.\r | |
866 | @param Guid Token space guid for dynamic-ex PCD.\r | |
867 | @param Data PCD value want to be set\r | |
868 | @param SetSize Size of value.\r | |
869 | @param PtrType If TRUE, this PCD entry is pointer type.\r | |
870 | If FALSE, this PCD entry is not pointer type.\r | |
80408db0 | 871 | \r |
fc547e08 | 872 | @return status of SetWorker().\r |
80408db0 | 873 | \r |
fc547e08 | 874 | **/\r |
80408db0 | 875 | EFI_STATUS\r |
876 | ExSetWorker (\r | |
877 | IN UINTN ExTokenNumber,\r | |
878 | IN CONST EFI_GUID *Guid,\r | |
879 | IN VOID *Data,\r | |
880 | IN OUT UINTN *Size,\r | |
881 | IN BOOLEAN PtrType\r | |
882 | )\r | |
883 | {\r | |
884 | UINTN TokenNumber;\r | |
885 | \r | |
f806dd27 | 886 | if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r |
80408db0 | 887 | return EFI_UNSUPPORTED;\r |
888 | }\r | |
889 | \r | |
890 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
86714ccd | 891 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
892 | return EFI_NOT_FOUND;\r | |
893 | }\r | |
894 | \r | |
80408db0 | 895 | InvokeCallbackOnSet (ExTokenNumber, Guid, TokenNumber, Data, *Size);\r |
896 | \r | |
897 | return SetWorker (TokenNumber, Data, Size, PtrType);\r | |
898 | \r | |
899 | }\r | |
900 | \r | |
fc547e08 | 901 | /**\r |
902 | Wrapper function for get PCD value for dynamic-ex PCD.\r | |
80408db0 | 903 | \r |
fc547e08 | 904 | @param Guid Token space guid for dynamic-ex PCD.\r |
905 | @param ExTokenNumber Token number for dyanmic-ex PCD.\r | |
906 | @param GetSize The size of dynamic-ex PCD value.\r | |
80408db0 | 907 | \r |
fc547e08 | 908 | @return PCD entry in PCD database.\r |
80408db0 | 909 | \r |
fc547e08 | 910 | **/\r |
80408db0 | 911 | VOID *\r |
912 | ExGetWorker (\r | |
913 | IN CONST EFI_GUID *Guid,\r | |
914 | IN UINTN ExTokenNumber,\r | |
915 | IN UINTN GetSize\r | |
916 | )\r | |
f806dd27 | 917 | { \r |
80408db0 | 918 | return GetWorker (GetExPcdTokenNumber (Guid, ExTokenNumber), GetSize);\r |
919 | }\r | |
920 | \r | |
fc547e08 | 921 | /**\r |
922 | Get the PCD entry pointer in PCD database.\r | |
923 | \r | |
924 | This routine will visit PCD database to find the PCD entry according to given\r | |
925 | token number. The given token number is autogened by build tools and it will be \r | |
926 | translated to local token number. Local token number contains PCD's type and \r | |
927 | offset of PCD entry in PCD database.\r | |
80408db0 | 928 | \r |
fc547e08 | 929 | @param TokenNumber Token's number, it is autogened by build tools\r |
930 | @param GetSize The size of token's value\r | |
80408db0 | 931 | \r |
fc547e08 | 932 | @return PCD entry pointer in PCD database\r |
80408db0 | 933 | \r |
fc547e08 | 934 | **/\r |
80408db0 | 935 | VOID *\r |
936 | GetWorker (\r | |
fc547e08 | 937 | IN UINTN TokenNumber,\r |
938 | IN UINTN GetSize\r | |
80408db0 | 939 | )\r |
940 | {\r | |
941 | UINT32 Offset;\r | |
942 | EFI_GUID *Guid;\r | |
943 | UINT16 *Name;\r | |
944 | VARIABLE_HEAD *VariableHead;\r | |
945 | EFI_STATUS Status;\r | |
946 | UINTN DataSize;\r | |
947 | VOID *Data;\r | |
d0965169 | 948 | UINT8 *StringTable;\r |
6cfc7292 | 949 | STRING_HEAD StringTableIdx;\r |
80408db0 | 950 | PEI_PCD_DATABASE *PeiPcdDb;\r |
951 | UINT32 LocalTokenNumber;\r | |
419db80b | 952 | UINT32 LocalTokenCount;\r |
80408db0 | 953 | \r |
954 | //\r | |
955 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
956 | // We have to decrement TokenNumber by 1 to make it usable\r | |
957 | // as the array index.\r | |
958 | //\r | |
959 | TokenNumber--;\r | |
960 | \r | |
419db80b BF |
961 | PeiPcdDb = GetPcdDatabase ();\r |
962 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
963 | \r | |
80408db0 | 964 | // EBC compiler is very choosy. It may report warning about comparison\r |
965 | // between UINTN and 0 . So we add 1 in each size of the \r | |
966 | // comparison.\r | |
419db80b | 967 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 968 | \r |
969 | ASSERT ((GetSize == PeiPcdGetSize(TokenNumber + 1)) || (GetSize == 0));\r | |
970 | \r | |
96d6d004 | 971 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber + 1);\r |
80408db0 | 972 | \r |
973 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
419db80b BF |
974 | StringTable = (UINT8 *)PeiPcdDb + PeiPcdDb->StringTableOffset;\r |
975 | \r | |
80408db0 | 976 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r |
977 | case PCD_TYPE_VPD:\r | |
978 | {\r | |
979 | VPD_HEAD *VpdHead;\r | |
980 | VpdHead = (VPD_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
188e4e84 | 981 | return (VOID *) (UINTN) (PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset);\r |
80408db0 | 982 | }\r |
983 | \r | |
6ac15f7c | 984 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r |
80408db0 | 985 | case PCD_TYPE_HII:\r |
986 | {\r | |
987 | VariableHead = (VARIABLE_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
988 | \r | |
419db80b | 989 | Guid = (EFI_GUID *) ((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset) + VariableHead->GuidTableIndex;\r |
d0965169 | 990 | Name = (UINT16*)&StringTable[VariableHead->StringIndex];\r |
80408db0 | 991 | \r |
992 | Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r | |
993 | \r | |
994 | if (Status == EFI_SUCCESS) {\r | |
995 | return (VOID *) ((UINT8 *) Data + VariableHead->Offset);\r | |
996 | } else {\r | |
997 | //\r | |
998 | // Return the default value specified by Platform Integrator \r | |
999 | //\r | |
6ac15f7c | 1000 | if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r |
6cfc7292 | 1001 | return (VOID*)&StringTable[*(STRING_HEAD*)((UINT8*)PeiPcdDb + VariableHead->DefaultValueOffset)];\r |
6ac15f7c | 1002 | } else {\r |
1003 | return (VOID *) ((UINT8 *) PeiPcdDb + VariableHead->DefaultValueOffset);\r | |
1004 | }\r | |
80408db0 | 1005 | }\r |
1006 | }\r | |
1007 | \r | |
1008 | case PCD_TYPE_DATA:\r | |
1009 | return (VOID *) ((UINT8 *)PeiPcdDb + Offset);\r | |
1010 | \r | |
1011 | case PCD_TYPE_STRING:\r | |
6cfc7292 | 1012 | StringTableIdx = * (STRING_HEAD*) ((UINT8 *) PeiPcdDb + Offset);\r |
80408db0 | 1013 | return (VOID *) (&StringTable[StringTableIdx]);\r |
1014 | \r | |
1015 | default:\r | |
1016 | ASSERT (FALSE);\r | |
1017 | break;\r | |
1018 | \r | |
1019 | }\r | |
1020 | \r | |
1021 | ASSERT (FALSE);\r | |
1022 | \r | |
1023 | return NULL;\r | |
1024 | \r | |
1025 | }\r | |
1026 | \r | |
fc547e08 | 1027 | /**\r |
419db80b | 1028 | Get Token Number according to dynamic-ex PCD's {token space guid:token number}\r |
fc547e08 | 1029 | \r |
1030 | A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r | |
1031 | in DEC file. PCD database maintain a mapping table that translate pair of {token\r | |
419db80b | 1032 | space guid: token number} to Token Number.\r |
fc547e08 | 1033 | \r |
1034 | @param Guid Token space guid for dynamic-ex PCD entry.\r | |
419db80b | 1035 | @param ExTokenNumber Dynamic-ex PCD token number.\r |
80408db0 | 1036 | \r |
419db80b | 1037 | @return Token Number for dynamic-ex PCD.\r |
80408db0 | 1038 | \r |
fc547e08 | 1039 | **/\r |
80408db0 | 1040 | UINTN \r |
1041 | GetExPcdTokenNumber (\r | |
1042 | IN CONST EFI_GUID *Guid,\r | |
1043 | IN UINTN ExTokenNumber\r | |
1044 | )\r | |
1045 | {\r | |
fc547e08 | 1046 | UINT32 Index;\r |
80408db0 | 1047 | DYNAMICEX_MAPPING *ExMap;\r |
1048 | EFI_GUID *GuidTable;\r | |
1049 | EFI_GUID *MatchGuid;\r | |
1050 | UINTN MatchGuidIdx;\r | |
1051 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
1052 | \r | |
1053 | PeiPcdDb = GetPcdDatabase();\r | |
80408db0 | 1054 | \r |
419db80b BF |
1055 | ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)PeiPcdDb + PeiPcdDb->ExMapTableOffset);\r |
1056 | GuidTable = (EFI_GUID *)((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset);\r | |
1057 | \r | |
1058 | MatchGuid = ScanGuid (GuidTable, PeiPcdDb->GuidTableCount * sizeof(EFI_GUID), Guid);\r | |
80408db0 | 1059 | //\r |
1060 | // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r | |
1061 | // error in the BUILD system.\r | |
1062 | //\r | |
1063 | ASSERT (MatchGuid != NULL);\r | |
1064 | \r | |
1065 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
1066 | \r | |
419db80b | 1067 | for (Index = 0; Index < PeiPcdDb->ExTokenCount; Index++) {\r |
fc547e08 | 1068 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) && \r |
1069 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
419db80b | 1070 | return ExMap[Index].TokenNumber;\r |
80408db0 | 1071 | }\r |
1072 | }\r | |
1073 | \r | |
86714ccd | 1074 | return PCD_INVALID_TOKEN_NUMBER;\r |
80408db0 | 1075 | }\r |
1076 | \r | |
fc547e08 | 1077 | /**\r |
1078 | Get PCD database from GUID HOB in PEI phase.\r | |
80408db0 | 1079 | \r |
fc547e08 | 1080 | @return Pointer to PCD database.\r |
80408db0 | 1081 | \r |
fc547e08 | 1082 | **/\r |
80408db0 | 1083 | PEI_PCD_DATABASE *\r |
1084 | GetPcdDatabase (\r | |
1085 | VOID\r | |
1086 | )\r | |
1087 | {\r | |
1088 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
1089 | \r | |
1090 | GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r | |
1091 | ASSERT (GuidHob != NULL);\r | |
1092 | \r | |
1093 | return (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r | |
1094 | }\r | |
1095 | \r | |
fc547e08 | 1096 | /**\r |
419db80b | 1097 | Get SKU ID table from PCD database.\r |
fc547e08 | 1098 | \r |
1099 | @param LocalTokenNumberTableIdx Index of local token number in token number table.\r | |
1100 | @param Database PCD database.\r | |
80408db0 | 1101 | \r |
fc547e08 | 1102 | @return Pointer to SKU ID array table\r |
80408db0 | 1103 | \r |
fc547e08 | 1104 | **/\r |
80408db0 | 1105 | SKU_ID *\r |
1106 | GetSkuIdArray (\r | |
1107 | IN UINTN LocalTokenNumberTableIdx,\r | |
1108 | IN PEI_PCD_DATABASE *Database\r | |
1109 | )\r | |
1110 | {\r | |
1111 | SKU_HEAD *SkuHead;\r | |
1112 | UINTN LocalTokenNumber;\r | |
1113 | \r | |
419db80b | 1114 | LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx);\r |
80408db0 | 1115 | \r |
1116 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0);\r | |
1117 | \r | |
1118 | SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
1119 | \r | |
1120 | return (SKU_ID *) ((UINT8 *)Database + SkuHead->SkuIdTableOffset);\r | |
1121 | \r | |
1122 | }\r | |
1123 | \r | |
fc547e08 | 1124 | /**\r |
1125 | Get index of PCD entry in size table.\r | |
1126 | \r | |
1127 | @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r | |
1128 | @param Database Pointer to PCD database in PEI phase.\r | |
80408db0 | 1129 | \r |
fc547e08 | 1130 | @return index of PCD entry in size table.\r |
80408db0 | 1131 | \r |
fc547e08 | 1132 | **/\r |
80408db0 | 1133 | UINTN\r |
1134 | GetSizeTableIndex (\r | |
1135 | IN UINTN LocalTokenNumberTableIdx,\r | |
1136 | IN PEI_PCD_DATABASE *Database\r | |
1137 | )\r | |
1138 | {\r | |
fc547e08 | 1139 | UINTN Index;\r |
419db80b | 1140 | UINTN SizeTableIdx;\r |
80408db0 | 1141 | UINTN LocalTokenNumber;\r |
1142 | SKU_ID *SkuIdTable;\r | |
1143 | \r | |
1144 | SizeTableIdx = 0;\r | |
1145 | \r | |
419db80b BF |
1146 | for (Index = 0; Index < LocalTokenNumberTableIdx; Index++) {\r |
1147 | LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + Index);\r | |
80408db0 | 1148 | \r |
1149 | if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r | |
1150 | //\r | |
1151 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
1152 | // PCD entry.\r | |
1153 | //\r | |
fc547e08 | 1154 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r |
80408db0 | 1155 | //\r |
419db80b | 1156 | // We have only two entry for VPD enabled PCD entry:\r |
80408db0 | 1157 | // 1) MAX Size.\r |
419db80b BF |
1158 | // 2) Current Size\r |
1159 | // Current size is equal to MAX size.\r | |
80408db0 | 1160 | //\r |
419db80b | 1161 | SizeTableIdx += 2;\r |
80408db0 | 1162 | } else {\r |
1163 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
1164 | //\r | |
1165 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1166 | // 1) MAX SIZE\r | |
1167 | // 2) Current Size\r | |
1168 | //\r | |
1169 | SizeTableIdx += 2;\r | |
1170 | } else {\r | |
1171 | //\r | |
1172 | // We have these entry for SKU enabled PCD entry\r | |
1173 | // 1) MAX SIZE\r | |
1174 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
1175 | //\r | |
fc547e08 | 1176 | SkuIdTable = GetSkuIdArray (Index, Database);\r |
80408db0 | 1177 | SizeTableIdx += (UINTN)*SkuIdTable + 1;\r |
1178 | }\r | |
1179 | }\r | |
1180 | }\r | |
1181 | \r | |
1182 | }\r | |
1183 | \r | |
1184 | return SizeTableIdx;\r | |
1185 | }\r |