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c311f86b 1/** @file\r
5879b875 2 Platform Configuration Database (PCD) PPI\r
3\r
b05ac954 4 Copyright (c) 2006 - 2008, Intel Corporation \r
5879b875 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
5879b875 13**/\r
14\r
15#ifndef __PCD_PPI_H__\r
16#define __PCD_PPI_H__\r
17\r
5879b875 18#define PCD_PPI_GUID \\r
19 { 0x6e81c58, 0x4ad7, 0x44bc, { 0x83, 0x90, 0xf1, 0x2, 0x65, 0xf7, 0x24, 0x80 } }\r
20\r
19fd6450 21#define PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)\r
22\r
5879b875 23\r
24/**\r
25 Sets the SKU value for subsequent calls to set or get PCD token values.\r
26\r
27 SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values. \r
28 SetSku() is normally called only once by the system.\r
29\r
30 For each item (token), the database can hold a single value that applies to all SKUs, \r
31 or multiple values, where each value is associated with a specific SKU Id. Items with multiple, \r
32 SKU-specific values are called SKU enabled. \r
33 \r
34 The SKU Id of zero is reserved as a default. The valid SkuId range is 1 to 255. \r
35 For tokens that are not SKU enabled, the system ignores any set SKU Id and works with the \r
36 single value for that token. For SKU-enabled tokens, the system will use the SKU Id set by the \r
37 last call to SetSku(). If no SKU Id is set or the currently set SKU Id isn't valid for the specified token, \r
38 the system uses the default SKU Id. If the system attempts to use the default SKU Id and no value has been \r
39 set for that Id, the results are unpredictable.\r
40\r
41 @param[in] SkuId The SKU value that will be used when the PCD service will retrieve and \r
42 set values associated with a PCD token.\r
43\r
44 @retval VOID\r
45\r
46**/\r
47typedef \r
48VOID\r
8b13229b 49(EFIAPI *PCD_PPI_SET_SKU)(\r
5879b875 50 IN UINTN SkuId\r
51 );\r
52\r
53\r
54\r
55/**\r
56 Retrieves an 8-bit value for a given PCD token.\r
57\r
58 Retrieves the current byte-sized value for a PCD token number. \r
59 If the TokenNumber is invalid, the results are unpredictable.\r
60 \r
61 @param[in] TokenNumber The PCD token number. \r
62\r
63 @return The UINT8 value.\r
64 \r
65**/\r
66typedef\r
67UINT8\r
8b13229b 68(EFIAPI *PCD_PPI_GET8)(\r
5879b875 69 IN UINTN TokenNumber\r
70 );\r
71\r
72\r
73\r
74/**\r
b05ac954 75 Retrieves a 16-bit value for a given PCD token.\r
5879b875 76\r
77 Retrieves the current 16-bits value for a PCD token number. \r
78 If the TokenNumber is invalid, the results are unpredictable.\r
79 \r
80 @param[in] TokenNumber The PCD token number. \r
81\r
82 @return The UINT16 value.\r
83 \r
84**/\r
85typedef\r
86UINT16\r
8b13229b 87(EFIAPI *PCD_PPI_GET16)(\r
5879b875 88 IN UINTN TokenNumber\r
89 );\r
90\r
91\r
92\r
93/**\r
b05ac954 94 Retrieves a 32-bit value for a given PCD token.\r
5879b875 95\r
96 Retrieves the current 32-bits value for a PCD token number. \r
97 If the TokenNumber is invalid, the results are unpredictable.\r
98 \r
99 @param[in] TokenNumber The PCD token number. \r
100\r
101 @return The UINT32 value.\r
102 \r
103**/\r
104typedef\r
105UINT32\r
8b13229b 106(EFIAPI *PCD_PPI_GET32)(\r
5879b875 107 IN UINTN TokenNumber\r
108 );\r
109\r
110\r
111\r
112/**\r
b05ac954 113 Retrieves a 64-bit value for a given PCD token.\r
5879b875 114\r
115 Retrieves the current 64-bits value for a PCD token number. \r
116 If the TokenNumber is invalid, the results are unpredictable.\r
117 \r
118 @param[in] TokenNumber The PCD token number. \r
119\r
120 @return The UINT64 value.\r
121 \r
122**/\r
123typedef\r
124UINT64\r
8b13229b 125(EFIAPI *PCD_PPI_GET64)(\r
5879b875 126 IN UINTN TokenNumber\r
127 );\r
128\r
129\r
130\r
131/**\r
132 Retrieves a pointer to a value for a given PCD token.\r
133\r
134 Retrieves the current pointer to the buffer for a PCD token number. \r
135 Do not make any assumptions about the alignment of the pointer that \r
136 is returned by this function call. If the TokenNumber is invalid, \r
137 the results are unpredictable.\r
138\r
139 @param[in] TokenNumber The PCD token number. \r
140\r
141 @return The pointer to the buffer to be retrived.\r
142 \r
143**/\r
144typedef\r
145VOID *\r
8b13229b 146(EFIAPI *PCD_PPI_GET_POINTER)(\r
5879b875 147 IN UINTN TokenNumber\r
148 );\r
149\r
150\r
151\r
152/**\r
153 Retrieves a Boolean value for a given PCD token.\r
154\r
155 Retrieves the current boolean value for a PCD token number. \r
156 Do not make any assumptions about the alignment of the pointer that \r
157 is returned by this function call. If the TokenNumber is invalid, \r
158 the results are unpredictable.\r
159\r
160 @param[in] TokenNumber The PCD token number. \r
161\r
162 @return The Boolean value.\r
163 \r
164**/\r
165typedef\r
166BOOLEAN\r
8b13229b 167(EFIAPI *PCD_PPI_GET_BOOLEAN)(\r
5879b875 168 IN UINTN TokenNumber\r
169 );\r
170\r
171\r
172\r
173/**\r
174 Retrieves the size of the value for a given PCD token.\r
175\r
176 Retrieves the current size of a particular PCD token. \r
177 If the TokenNumber is invalid, the results are unpredictable.\r
178\r
179 @param[in] TokenNumber The PCD token number. \r
180\r
181 @return The size of the value for the PCD token.\r
182 \r
183**/\r
184typedef\r
185UINTN\r
8b13229b 186(EFIAPI *PCD_PPI_GET_SIZE)(\r
5879b875 187 IN UINTN TokenNumber\r
188 );\r
189\r
190\r
191\r
192/**\r
4ca9b6c4 193 Retrieves an 8-bit value for a given PCD token and token space.\r
5879b875 194\r
195 Retrieves the 8-bit value of a particular PCD token. \r
196 If the TokenNumber is invalid or the token space\r
197 specified by Guid does not exist, the results are \r
198 unpredictable.\r
199\r
b05ac954 200 @param[in] Guid The token space for the token number.\r
5879b875 201 @param[in] TokenNumber The PCD token number. \r
202\r
203 @return The size 8-bit value for the PCD token.\r
204 \r
205**/\r
206typedef\r
207UINT8\r
8b13229b 208(EFIAPI *PCD_PPI_GET_EX_8)(\r
5879b875 209 IN CONST EFI_GUID *Guid,\r
19fd6450 210 IN UINTN TokenNumber\r
5879b875 211 );\r
212\r
213\r
214\r
215/**\r
b05ac954 216 Retrieves a 16-bit value for a given PCD token and token space.\r
5879b875 217\r
218 Retrieves the 16-bit value of a particular PCD token. \r
219 If the TokenNumber is invalid or the token space\r
220 specified by Guid does not exist, the results are \r
221 unpredictable.\r
222\r
b05ac954 223 @param[in] Guid The token space for the token number.\r
5879b875 224 @param[in] TokenNumber The PCD token number. \r
225\r
226 @return The size 16-bit value for the PCD token.\r
227 \r
228**/\r
229typedef\r
230UINT16\r
8b13229b 231(EFIAPI *PCD_PPI_GET_EX_16)(\r
5879b875 232 IN CONST EFI_GUID *Guid,\r
19fd6450 233 IN UINTN TokenNumber\r
5879b875 234 );\r
235\r
236\r
237\r
238/**\r
b05ac954 239 Retrieves a 32-bit value for a given PCD token and token space.\r
5879b875 240\r
241 Retrieves the 32-bit value of a particular PCD token. \r
242 If the TokenNumber is invalid or the token space\r
243 specified by Guid does not exist, the results are \r
244 unpredictable.\r
245\r
b05ac954 246 @param[in] Guid The token space for the token number.\r
5879b875 247 @param[in] TokenNumber The PCD token number. \r
248\r
249 @return The size 32-bit value for the PCD token.\r
250 \r
251**/\r
252typedef\r
253UINT32\r
8b13229b 254(EFIAPI *PCD_PPI_GET_EX_32)(\r
5879b875 255 IN CONST EFI_GUID *Guid,\r
19fd6450 256 IN UINTN TokenNumber\r
5879b875 257 );\r
258\r
259\r
260\r
261/**\r
b05ac954 262 Retrieves a 64-bit value for a given PCD token and token space.\r
5879b875 263\r
264 Retrieves the 64-bit value of a particular PCD token. \r
265 If the TokenNumber is invalid or the token space\r
266 specified by Guid does not exist, the results are \r
267 unpredictable.\r
268\r
b05ac954 269 @param[in] Guid The token space for the token number.\r
5879b875 270 @param[in] TokenNumber The PCD token number. \r
271\r
272 @return The size 64-bit value for the PCD token.\r
273 \r
274**/\r
275typedef\r
276UINT64\r
8b13229b 277(EFIAPI *PCD_PPI_GET_EX_64)(\r
5879b875 278 IN CONST EFI_GUID *Guid,\r
19fd6450 279 IN UINTN TokenNumber\r
5879b875 280 );\r
281\r
282\r
283\r
284/**\r
4ca9b6c4 285 Retrieves a pointer to a value for a given PCD token and token space.\r
5879b875 286\r
287 Retrieves the current pointer to the buffer for a PCD token number. \r
288 Do not make any assumptions about the alignment of the pointer that \r
289 is returned by this function call. If the TokenNumber is invalid, \r
290 the results are unpredictable.\r
291\r
b05ac954 292 @param[in] Guid The token space for the token number.\r
5879b875 293 @param[in] TokenNumber The PCD token number. \r
294\r
295 @return The pointer to the buffer to be retrived.\r
296 \r
297**/\r
298typedef\r
299VOID *\r
8b13229b 300(EFIAPI *PCD_PPI_GET_EX_POINTER)(\r
5879b875 301 IN CONST EFI_GUID *Guid,\r
19fd6450 302 IN UINTN TokenNumber\r
5879b875 303 );\r
304\r
305\r
306\r
307/**\r
4ca9b6c4 308 Retrieves an Boolean value for a given PCD token and token space.\r
5879b875 309\r
310 Retrieves the Boolean value of a particular PCD token. \r
311 If the TokenNumber is invalid or the token space\r
312 specified by Guid does not exist, the results are \r
313 unpredictable.\r
314\r
315 @param[in] Guid The token space for the token number.\r
316 @param[in] TokenNumber The PCD token number. \r
317\r
318 @return The size Boolean value for the PCD token.\r
319 \r
320**/\r
321typedef\r
322BOOLEAN\r
8b13229b 323(EFIAPI *PCD_PPI_GET_EX_BOOLEAN)(\r
5879b875 324 IN CONST EFI_GUID *Guid,\r
19fd6450 325 IN UINTN TokenNumber\r
5879b875 326 );\r
327\r
328\r
329\r
330/**\r
4ca9b6c4 331 Retrieves the size of the value for a given PCD token and token space.\r
5879b875 332\r
333 Retrieves the current size of a particular PCD token. \r
334 If the TokenNumber is invalid, the results are unpredictable.\r
335\r
b05ac954 336 @param[in] Guid The token space for the token number.\r
5879b875 337 @param[in] TokenNumber The PCD token number. \r
338\r
339 @return The size of the value for the PCD token.\r
340 \r
341**/\r
342typedef\r
343UINTN\r
8b13229b 344(EFIAPI *PCD_PPI_GET_EX_SIZE)(\r
5879b875 345 IN CONST EFI_GUID *Guid,\r
19fd6450 346 IN UINTN TokenNumber\r
5879b875 347 );\r
348\r
349\r
350\r
351/**\r
352 Sets an 8-bit value for a given PCD token.\r
353\r
354 When the PCD service sets a value, it will check to ensure that the \r
355 size of the value being set is compatible with the Token's existing definition. \r
356 If it is not, an error will be returned.\r
357\r
358 @param[in] TokenNumber The PCD token number. \r
b05ac954 359 @param[in] Value The value to set for the PCD token.\r
5879b875 360\r
b05ac954 361 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 362 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 363 being set was incompatible with a call to this function. \r
364 Use GetSize() to retrieve the size of the target data.\r
365 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 366 \r
367**/\r
368typedef\r
369EFI_STATUS\r
8b13229b 370(EFIAPI *PCD_PPI_SET8)(\r
5879b875 371 IN UINTN TokenNumber,\r
372 IN UINT8 Value\r
373 );\r
374\r
375\r
376\r
377/**\r
b05ac954 378 Sets a 16-bit value for a given PCD token.\r
5879b875 379\r
380 When the PCD service sets a value, it will check to ensure that the \r
381 size of the value being set is compatible with the Token's existing definition. \r
382 If it is not, an error will be returned.\r
383\r
384 @param[in] TokenNumber The PCD token number. \r
b05ac954 385 @param[in] Value The value to set for the PCD token.\r
5879b875 386\r
b05ac954 387 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 388 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 389 being set was incompatible with a call to this function. \r
390 Use GetSize() to retrieve the size of the target data.\r
391 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 392 \r
393**/\r
394typedef\r
395EFI_STATUS\r
8b13229b 396(EFIAPI *PCD_PPI_SET16)(\r
5879b875 397 IN UINTN TokenNumber,\r
398 IN UINT16 Value\r
399 );\r
400\r
401\r
402\r
403/**\r
b05ac954 404 Sets a 32-bit value for a given PCD token.\r
5879b875 405\r
406 When the PCD service sets a value, it will check to ensure that the \r
407 size of the value being set is compatible with the Token's existing definition. \r
408 If it is not, an error will be returned.\r
409\r
410 @param[in] TokenNumber The PCD token number. \r
b05ac954 411 @param[in] Value The value to set for the PCD token.\r
5879b875 412\r
b05ac954 413 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 414 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 415 being set was incompatible with a call to this function. \r
416 Use GetSize() to retrieve the size of the target data.\r
417 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 418 \r
419**/\r
420typedef\r
421EFI_STATUS\r
8b13229b 422(EFIAPI *PCD_PPI_SET32)(\r
5879b875 423 IN UINTN TokenNumber,\r
424 IN UINT32 Value\r
425 );\r
426\r
427\r
428\r
429/**\r
b05ac954 430 Sets a 64-bit value for a given PCD token.\r
5879b875 431\r
432 When the PCD service sets a value, it will check to ensure that the \r
433 size of the value being set is compatible with the Token's existing definition. \r
434 If it is not, an error will be returned.\r
435\r
436 @param[in] TokenNumber The PCD token number. \r
b05ac954 437 @param[in] Value The value to set for the PCD token.\r
5879b875 438\r
b05ac954 439 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 440 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 441 being set was incompatible with a call to this function. \r
442 Use GetSize() to retrieve the size of the target data.\r
443 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 444 \r
445**/\r
446typedef\r
447EFI_STATUS\r
8b13229b 448(EFIAPI *PCD_PPI_SET64)(\r
5879b875 449 IN UINTN TokenNumber,\r
450 IN UINT64 Value\r
451 );\r
452\r
5879b875 453/**\r
454 Sets a value of a specified size for a given PCD token.\r
455\r
456 When the PCD service sets a value, it will check to ensure that the \r
457 size of the value being set is compatible with the Token's existing definition. \r
458 If it is not, an error will be returned.\r
459\r
b05ac954 460 @param[in] TokenNumber The PCD token number. \r
19fd6450 461 @param[in, out] SizeOfValue A pointer to the length of the value being set for the PCD token. \r
b05ac954 462 On input, if the SizeOfValue is greater than the maximum size supported \r
463 for this TokenNumber then the output value of SizeOfValue will reflect \r
464 the maximum size supported for this TokenNumber.\r
465 @param[in] Buffer The buffer to set for the PCD token.\r
5879b875 466\r
b05ac954 467 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 468 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 469 being set was incompatible with a call to this function. \r
470 Use GetSize() to retrieve the size of the target data.\r
471 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 472 \r
473**/\r
474typedef\r
475EFI_STATUS\r
8b13229b 476(EFIAPI *PCD_PPI_SET_POINTER)(\r
5879b875 477 IN UINTN TokenNumber,\r
19fd6450 478 IN OUT UINTN *SizeOfValue,\r
5879b875 479 IN VOID *Buffer\r
480 );\r
5879b875 481\r
482/**\r
483 Sets an Boolean value for a given PCD token.\r
484\r
485 When the PCD service sets a value, it will check to ensure that the \r
486 size of the value being set is compatible with the Token's existing definition. \r
487 If it is not, an error will be returned.\r
488\r
489 @param[in] TokenNumber The PCD token number. \r
b05ac954 490 @param[in] Value The value to set for the PCD token.\r
5879b875 491\r
b05ac954 492 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 493 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 494 being set was incompatible with a call to this function. \r
495 Use GetSize() to retrieve the size of the target data.\r
496 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 497 \r
498**/\r
499typedef\r
500EFI_STATUS\r
8b13229b 501(EFIAPI *PCD_PPI_SET_BOOLEAN)(\r
5879b875 502 IN UINTN TokenNumber,\r
503 IN BOOLEAN Value\r
504 );\r
505\r
506\r
507\r
508/**\r
509 Sets an 8-bit value for a given PCD token.\r
510\r
511 When the PCD service sets a value, it will check to ensure that the \r
512 size of the value being set is compatible with the Token's existing definition. \r
513 If it is not, an error will be returned.\r
514\r
b05ac954 515 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
5879b875 516 @param[in] TokenNumber The PCD token number. \r
b05ac954 517 @param[in] Value The value to set for the PCD token.\r
5879b875 518\r
b05ac954 519 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 520 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 521 being set was incompatible with a call to this function. \r
522 Use GetSize() to retrieve the size of the target data.\r
523 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 524 \r
525**/\r
526typedef\r
527EFI_STATUS\r
8b13229b 528(EFIAPI *PCD_PPI_SET_EX_8)(\r
5879b875 529 IN CONST EFI_GUID *Guid,\r
19fd6450 530 IN UINTN TokenNumber,\r
531 IN UINT8 Value\r
5879b875 532 );\r
533\r
534\r
535\r
536/**\r
b05ac954 537 Sets a 16-bit value for a given PCD token.\r
5879b875 538\r
539 When the PCD service sets a value, it will check to ensure that the \r
540 size of the value being set is compatible with the Token's existing definition. \r
541 If it is not, an error will be returned.\r
542\r
b05ac954 543 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
5879b875 544 @param[in] TokenNumber The PCD token number. \r
b05ac954 545 @param[in] Value The value to set for the PCD token.\r
5879b875 546\r
b05ac954 547 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 548 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 549 being set was incompatible with a call to this function. \r
550 Use GetSize() to retrieve the size of the target data.\r
551 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 552 \r
553**/\r
554typedef\r
555EFI_STATUS\r
8b13229b 556(EFIAPI *PCD_PPI_SET_EX_16)(\r
5879b875 557 IN CONST EFI_GUID *Guid,\r
19fd6450 558 IN UINTN TokenNumber,\r
559 IN UINT16 Value\r
5879b875 560 );\r
561\r
562\r
563\r
564/**\r
b05ac954 565 Sets a 32-bit value for a given PCD token.\r
5879b875 566\r
567 When the PCD service sets a value, it will check to ensure that the \r
568 size of the value being set is compatible with the Token's existing definition. \r
569 If it is not, an error will be returned.\r
570\r
b05ac954 571 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
5879b875 572 @param[in] TokenNumber The PCD token number. \r
b05ac954 573 @param[in] Value The value to set for the PCD token.\r
5879b875 574\r
b05ac954 575 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 576 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 577 being set was incompatible with a call to this function. \r
578 Use GetSize() to retrieve the size of the target data.\r
579 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 580 \r
581**/\r
582typedef\r
583EFI_STATUS\r
8b13229b 584(EFIAPI *PCD_PPI_SET_EX_32)(\r
5879b875 585 IN CONST EFI_GUID *Guid,\r
19fd6450 586 IN UINTN TokenNumber,\r
587 IN UINT32 Value\r
5879b875 588 );\r
589\r
590\r
591\r
592/**\r
b05ac954 593 Sets a 64-bit value for a given PCD token.\r
5879b875 594\r
595 When the PCD service sets a value, it will check to ensure that the \r
596 size of the value being set is compatible with the Token's existing definition. \r
597 If it is not, an error will be returned.\r
598\r
b05ac954 599 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
5879b875 600 @param[in] TokenNumber The PCD token number. \r
b05ac954 601 @param[in] Value The value to set for the PCD token.\r
5879b875 602\r
b05ac954 603 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 604 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 605 being set was incompatible with a call to this function. \r
606 Use GetSize() to retrieve the size of the target data.\r
607 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 608 \r
609**/\r
610typedef\r
611EFI_STATUS\r
8b13229b 612(EFIAPI *PCD_PPI_SET_EX_64)(\r
19fd6450 613 IN CONST EFI_GUID *Guid,\r
614 IN UINTN TokenNumber,\r
615 IN UINT64 Value\r
5879b875 616 );\r
617\r
618\r
619\r
620/**\r
621 Sets a value of a specified size for a given PCD token.\r
622\r
623 When the PCD service sets a value, it will check to ensure that the \r
624 size of the value being set is compatible with the Token's existing definition. \r
625 If it is not, an error will be returned.\r
626\r
b05ac954 627 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
628 @param[in] TokenNumber The PCD token number. \r
19fd6450 629 @param[in, out] SizeOfValue A pointer to the length of the value being set for the PCD token. \r
b05ac954 630 On input, if the SizeOfValue is greater than the maximum size supported \r
631 for this TokenNumber then the output value of SizeOfValue will reflect \r
632 the maximum size supported for this TokenNumber.\r
633 @param[in] Buffer The buffer to set for the PCD token.\r
5879b875 634\r
b05ac954 635 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 636 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 637 being set was incompatible with a call to this function. \r
638 Use GetSize() to retrieve the size of the target data.\r
639 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 640 \r
641**/\r
642typedef\r
643EFI_STATUS\r
8b13229b 644(EFIAPI *PCD_PPI_SET_EX_POINTER)(\r
19fd6450 645 IN CONST EFI_GUID *Guid,\r
646 IN UINTN TokenNumber,\r
647 IN OUT UINTN *SizeOfValue,\r
648 IN VOID *Buffer\r
5879b875 649 );\r
5879b875 650\r
651/**\r
652 Sets an Boolean value for a given PCD token.\r
653\r
654 When the PCD service sets a value, it will check to ensure that the \r
655 size of the value being set is compatible with the Token's existing definition. \r
656 If it is not, an error will be returned.\r
657\r
b05ac954 658 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
5879b875 659 @param[in] TokenNumber The PCD token number. \r
b05ac954 660 @param[in] Value The value to set for the PCD token.\r
5879b875 661\r
b05ac954 662 @retval EFI_SUCCESS Procedure returned successfully.\r
5879b875 663 @retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data \r
b05ac954 664 being set was incompatible with a call to this function. \r
665 Use GetSize() to retrieve the size of the target data.\r
666 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
5879b875 667 \r
668**/\r
669typedef\r
670EFI_STATUS\r
8b13229b 671(EFIAPI *PCD_PPI_SET_EX_BOOLEAN)(\r
19fd6450 672 IN CONST EFI_GUID *Guid,\r
673 IN UINTN TokenNumber,\r
674 IN BOOLEAN Value\r
5879b875 675 );\r
676\r
677\r
678\r
679/**\r
680 Callback on SET function prototype definition.\r
681\r
682 This notification function serves two purposes. Firstly, it notifies the module \r
683 which did the registration that the value of this PCD token has been set. Secondly, \r
684 it provides a mechanism for the module which did the registration to intercept the set \r
685 operation and override the value been set if necessary. After the invocation of the \r
686 callback function, TokenData will be used by PCD service PEIM to modify the internal data \r
687 in PCD database.\r
688\r
b05ac954 689 @param[in] CallBackGuid The PCD token GUID being set.\r
690 @param[in] CallBackToken The PCD token number being set.\r
691 @param[in, out] TokenData A pointer to the token data being set.\r
692 @param[in] TokenDataSize The size, in bytes, of the data being set.\r
5879b875 693\r
694 @retval VOID\r
695\r
696**/\r
697typedef\r
698VOID\r
8b13229b 699(EFIAPI *PCD_PPI_CALLBACK)(\r
19fd6450 700 IN CONST EFI_GUID *CallBackGuid, OPTIONAL\r
701 IN UINTN CallBackToken,\r
702 IN OUT VOID *TokenData,\r
703 IN UINTN TokenDataSize\r
5879b875 704 );\r
705\r
706\r
707\r
708/**\r
709 Specifies a function to be called anytime the value of a designated token is changed.\r
710\r
711 @param[in] TokenNumber The PCD token number. \r
712 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
713 @param[in] CallBackFunction The function prototype called when the value associated with the CallBackToken is set. \r
714\r
715 @retval EFI_SUCCESS The PCD service has successfully established a call event \r
716 for the CallBackToken requested.\r
717 @retval EFI_NOT_FOUND The PCD service could not find the referenced token number.\r
718\r
719**/\r
720typedef\r
721EFI_STATUS\r
8b13229b 722(EFIAPI *PCD_PPI_CALLBACK_ONSET)(\r
19fd6450 723 IN CONST EFI_GUID *Guid, OPTIONAL\r
724 IN UINTN TokenNumber,\r
725 IN PCD_PPI_CALLBACK CallBackFunction\r
5879b875 726 );\r
727\r
728\r
729\r
730/**\r
731 Cancels a previously set callback function for a particular PCD token number.\r
732\r
733 @param[in] TokenNumber The PCD token number. \r
734 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
735 @param[in] CallBackFunction The function prototype called when the value associated with the CallBackToken is set. \r
736\r
737 @retval EFI_SUCCESS The PCD service has successfully established a call event \r
738 for the CallBackToken requested.\r
739 @retval EFI_NOT_FOUND The PCD service could not find the referenced token number.\r
740\r
741**/\r
742typedef\r
743EFI_STATUS\r
8b13229b 744(EFIAPI *PCD_PPI_CANCEL_CALLBACK)(\r
19fd6450 745 IN CONST EFI_GUID *Guid, OPTIONAL\r
746 IN UINTN TokenNumber,\r
747 IN PCD_PPI_CALLBACK CallBackFunction\r
5879b875 748 );\r
749\r
750\r
751\r
752/**\r
75070952 753 Retrieves the next valid token number in a given namespace. \r
b05ac954 754 \r
75070952 755 This is useful since the PCD infrastructure contains a sparse list of token numbers, \r
756 and one cannot a priori know what token numbers are valid in the database. \r
757 \r
758 If TokenNumber is 0 and Guid is not NULL, then the first token from the token space specified by Guid is returned. \r
759 If TokenNumber is not 0 and Guid is not NULL, then the next token in the token space specified by Guid is returned. \r
760 If TokenNumber is 0 and Guid is NULL, then the first token in the default token space is returned. \r
761 If TokenNumber is not 0 and Guid is NULL, then the next token in the default token space is returned. \r
762 The token numbers in the default token space may not be related to token numbers in token spaces that are named by Guid. \r
763 If the next token number can be retrieved, then it is returned in TokenNumber, and EFI_SUCCESS is returned. \r
764 If TokenNumber represents the last token number in the token space specified by Guid, then EFI_NOT_FOUND is returned. \r
765 If TokenNumber is not present in the token space specified by Guid, then EFI_NOT_FOUND is returned.\r
5879b875 766\r
b05ac954 767\r
75070952 768 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. \r
769 This is an optional parameter that may be NULL. If this parameter is NULL, then a request \r
770 is being made to retrieve tokens from the default token space.\r
5879b875 771 @param[in, out] TokenNumber A pointer to the PCD token number to use to find the subsequent token number.\r
b05ac954 772 \r
773 @retval EFI_SUCCESS The PCD service has retrieved the next valid token number. \r
5879b875 774 Or the input token number is already the last valid token number in the PCD database. \r
775 In the later case, *TokenNumber is updated with the value of 0.\r
776 @retval EFI_NOT_FOUND If this input token number and token namespace does not exist on the platform.\r
777\r
778**/\r
779typedef \r
780EFI_STATUS\r
8b13229b 781(EFIAPI *PCD_PPI_GET_NEXT_TOKEN)(\r
5879b875 782 IN CONST EFI_GUID *Guid, OPTIONAL\r
19fd6450 783 IN OUT UINTN *TokenNumber\r
5879b875 784 );\r
785\r
786\r
787\r
788/**\r
789 Retrieves the next valid PCD token namespace for a given namespace.\r
790\r
b05ac954 791 If *Guid is NULL, then the GUID of the first token space of the \r
792 current platform is assigned to *Guid the function return EFI_SUCCESS. \r
793 If *Guid is NULL and there is no namespace exist in the platform other than the default \r
794 (NULL) tokennamespace, *Guid is unchanged and the function return EFI_SUCCESS. \r
795 If this input token namespace is the last namespace on the platform, \r
796 *Guid will be assigned to NULL and the function return EFI_SUCCESS.\r
797\r
5879b875 798 @param[in, out] Guid An indirect pointer to EFI_GUID. On input it designates a known \r
b05ac954 799 token namespace from which the search will start. On output, it designates \r
800 the next valid token namespace on the platform. If the input token namespace \r
801 does not exist on the platform, an error is returned and the value of *Guid is \r
802 undefined.\r
5879b875 803\r
804 @retval EFI_SUCCESS The PCD service has retrieved the next valid token namespace. \r
805 Or the input token namespace is already the last valid token \r
806 number in the PCD database. In the later case, *Guid is updated \r
807 with the value of NULL. Or the input token name space is NULL and there \r
808 is no valid token namespace other than the default namespace (NULL).\r
809 @retval EFI_NOT_FOUND If the input token namespace does not exist on the platform.\r
810\r
811**/\r
812typedef\r
813EFI_STATUS\r
8b13229b 814(EFIAPI *PCD_PPI_GET_NEXT_TOKENSPACE)(\r
5879b875 815 IN OUT CONST EFI_GUID **Guid\r
816 );\r
817\r
818\r
819\r
44717a39 820///\r
821/// This service abstracts the ability to set/get Platform Configuration Database (PCD).\r
822///\r
5879b875 823typedef struct {\r
824 PCD_PPI_SET_SKU SetSku;\r
825\r
826 PCD_PPI_GET8 Get8;\r
827 PCD_PPI_GET16 Get16;\r
828 PCD_PPI_GET32 Get32;\r
829 PCD_PPI_GET64 Get64;\r
830 PCD_PPI_GET_POINTER GetPtr;\r
831 PCD_PPI_GET_BOOLEAN GetBool;\r
832 PCD_PPI_GET_SIZE GetSize;\r
833\r
834 PCD_PPI_GET_EX_8 Get8Ex;\r
835 PCD_PPI_GET_EX_16 Get16Ex;\r
836 PCD_PPI_GET_EX_32 Get32Ex;\r
837 PCD_PPI_GET_EX_64 Get64Ex;\r
838 PCD_PPI_GET_EX_POINTER GetPtrEx;\r
839 PCD_PPI_GET_EX_BOOLEAN GetBoolEx;\r
840 PCD_PPI_GET_EX_SIZE GetSizeEx;\r
841\r
842 PCD_PPI_SET8 Set8;\r
843 PCD_PPI_SET16 Set16;\r
844 PCD_PPI_SET32 Set32;\r
845 PCD_PPI_SET64 Set64;\r
846 PCD_PPI_SET_POINTER SetPtr;\r
847 PCD_PPI_SET_BOOLEAN SetBool;\r
848\r
849 PCD_PPI_SET_EX_8 Set8Ex;\r
850 PCD_PPI_SET_EX_16 Set16Ex;\r
851 PCD_PPI_SET_EX_32 Set32Ex;\r
852 PCD_PPI_SET_EX_64 Set64Ex;\r
853 PCD_PPI_SET_EX_POINTER SetPtrEx;\r
854 PCD_PPI_SET_EX_BOOLEAN SetBoolEx;\r
855\r
856 PCD_PPI_CALLBACK_ONSET CallbackOnSet;\r
857 PCD_PPI_CANCEL_CALLBACK CancelCallback;\r
858 PCD_PPI_GET_NEXT_TOKEN GetNextToken;\r
859 PCD_PPI_GET_NEXT_TOKENSPACE GetNextTokenSpace;\r
860} PCD_PPI;\r
861\r
862\r
863extern EFI_GUID gPcdPpiGuid;\r
864\r
865#endif\r