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e1f414b6 | 1 | /** @file\r |
5c57f3ea | 2 | PCI Library functions that use the 256 MB PCI Express MMIO window to perform PCI\r |
3 | Configuration cycles. Layers on PCI Express Library.\r | |
e1f414b6 | 4 | \r |
94646ec0 | 5 | Copyright (c) 2006 - 2008, Intel Corporation<BR>\r |
e1f414b6 | 6 | All rights reserved. This program and the accompanying materials\r |
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 | |
e1f414b6 | 14 | **/\r |
15 | \r | |
c892d846 | 16 | \r |
c7d265a9 | 17 | #include <Base.h>\r |
c892d846 | 18 | \r |
c7d265a9 | 19 | #include <Library/PciLib.h>\r |
20 | #include <Library/PciExpressLib.h>\r | |
e1f414b6 | 21 | \r |
3e3ae634 | 22 | /**\r |
23 | Register a PCI device so PCI configuration registers may be accessed after \r | |
24 | SetVirtualAddressMap().\r | |
25 | \r | |
26 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
27 | \r | |
28 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
29 | Register.\r | |
30 | \r | |
31 | @retval RETURN_SUCCESS The PCI device was registered for runtime access.\r | |
32 | @retval RETURN_UNSUPPORTED An attempt was made to call this function \r | |
33 | after ExitBootServices().\r | |
34 | @retval RETURN_UNSUPPORTED The resources required to access the PCI device\r | |
35 | at runtime could not be mapped.\r | |
36 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources available to\r | |
37 | complete the registration.\r | |
38 | \r | |
39 | **/\r | |
40 | RETURN_STATUS\r | |
41 | EFIAPI\r | |
42 | PciRegisterForRuntimeAccess (\r | |
43 | IN UINTN Address\r | |
44 | )\r | |
45 | {\r | |
46 | return PciExpressRegisterForRuntimeAccess (Address);\r | |
47 | }\r | |
48 | \r | |
e1f414b6 | 49 | /**\r |
50 | Reads an 8-bit PCI configuration register.\r | |
51 | \r | |
52 | Reads and returns the 8-bit PCI configuration register specified by Address.\r | |
53 | This function must guarantee that all PCI read and write operations are\r | |
54 | serialized.\r | |
55 | \r | |
56 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
57 | \r | |
58 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
59 | Register.\r | |
60 | \r | |
61 | @return The read value from the PCI configuration register.\r | |
62 | \r | |
63 | **/\r | |
64 | UINT8\r | |
65 | EFIAPI\r | |
66 | PciRead8 (\r | |
67 | IN UINTN Address\r | |
68 | )\r | |
69 | {\r | |
70 | return PciExpressRead8 (Address);\r | |
71 | }\r | |
72 | \r | |
73 | /**\r | |
74 | Writes an 8-bit PCI configuration register.\r | |
75 | \r | |
76 | Writes the 8-bit PCI configuration register specified by Address with the\r | |
77 | value specified by Value. Value is returned. This function must guarantee\r | |
78 | that all PCI read and write operations are serialized.\r | |
79 | \r | |
80 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
81 | \r | |
82 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
83 | Register.\r | |
7612cbf0 | 84 | @param Value The value to write.\r |
e1f414b6 | 85 | \r |
86 | @return The value written to the PCI configuration register.\r | |
87 | \r | |
88 | **/\r | |
89 | UINT8\r | |
90 | EFIAPI\r | |
91 | PciWrite8 (\r | |
92 | IN UINTN Address,\r | |
94646ec0 | 93 | IN UINT8 Value\r |
e1f414b6 | 94 | )\r |
95 | {\r | |
94646ec0 | 96 | return PciExpressWrite8 (Address, Value);\r |
e1f414b6 | 97 | }\r |
98 | \r | |
99 | /**\r | |
100 | Performs a bitwise inclusive OR of an 8-bit PCI configuration register with\r | |
101 | an 8-bit value.\r | |
102 | \r | |
103 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
104 | bitwise inclusive OR between the read result and the value specified by\r | |
105 | OrData, and writes the result to the 8-bit PCI configuration register\r | |
106 | specified by Address. The value written to the PCI configuration register is\r | |
107 | returned. This function must guarantee that all PCI read and write operations\r | |
108 | are serialized.\r | |
109 | \r | |
110 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
111 | \r | |
112 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
113 | Register.\r | |
114 | @param OrData The value to OR with the PCI configuration register.\r | |
115 | \r | |
116 | @return The value written back to the PCI configuration register.\r | |
117 | \r | |
118 | **/\r | |
119 | UINT8\r | |
120 | EFIAPI\r | |
121 | PciOr8 (\r | |
122 | IN UINTN Address,\r | |
123 | IN UINT8 OrData\r | |
124 | )\r | |
125 | {\r | |
126 | return PciExpressOr8 (Address, OrData);\r | |
127 | }\r | |
128 | \r | |
129 | /**\r | |
130 | Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit\r | |
131 | value.\r | |
132 | \r | |
133 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
134 | bitwise AND between the read result and the value specified by AndData, and\r | |
135 | writes the result to the 8-bit PCI configuration register specified by\r | |
136 | Address. The value written to the PCI configuration register is returned.\r | |
137 | This function must guarantee that all PCI read and write operations are\r | |
138 | serialized.\r | |
139 | \r | |
140 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
141 | \r | |
142 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
143 | Register.\r | |
144 | @param AndData The value to AND with the PCI configuration register.\r | |
145 | \r | |
146 | @return The value written back to the PCI configuration register.\r | |
147 | \r | |
148 | **/\r | |
149 | UINT8\r | |
150 | EFIAPI\r | |
151 | PciAnd8 (\r | |
152 | IN UINTN Address,\r | |
153 | IN UINT8 AndData\r | |
154 | )\r | |
155 | {\r | |
156 | return PciExpressAnd8 (Address, AndData);\r | |
157 | }\r | |
158 | \r | |
159 | /**\r | |
160 | Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit\r | |
161 | value, followed a bitwise inclusive OR with another 8-bit value.\r | |
162 | \r | |
163 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
164 | bitwise AND between the read result and the value specified by AndData,\r | |
165 | performs a bitwise inclusive OR between the result of the AND operation and\r | |
166 | the value specified by OrData, and writes the result to the 8-bit PCI\r | |
167 | configuration register specified by Address. The value written to the PCI\r | |
168 | configuration register is returned. This function must guarantee that all PCI\r | |
169 | read and write operations are serialized.\r | |
170 | \r | |
171 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
172 | \r | |
173 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
174 | Register.\r | |
175 | @param AndData The value to AND with the PCI configuration register.\r | |
176 | @param OrData The value to OR with the result of the AND operation.\r | |
177 | \r | |
178 | @return The value written back to the PCI configuration register.\r | |
179 | \r | |
180 | **/\r | |
181 | UINT8\r | |
182 | EFIAPI\r | |
183 | PciAndThenOr8 (\r | |
184 | IN UINTN Address,\r | |
185 | IN UINT8 AndData,\r | |
186 | IN UINT8 OrData\r | |
187 | )\r | |
188 | {\r | |
189 | return PciExpressAndThenOr8 (Address, AndData, OrData);\r | |
190 | }\r | |
191 | \r | |
192 | /**\r | |
193 | Reads a bit field of a PCI configuration register.\r | |
194 | \r | |
195 | Reads the bit field in an 8-bit PCI configuration register. The bit field is\r | |
196 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
197 | returned.\r | |
198 | \r | |
199 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
200 | If StartBit is greater than 7, then ASSERT().\r | |
201 | If EndBit is greater than 7, then ASSERT().\r | |
202 | If EndBit is less than StartBit, then ASSERT().\r | |
203 | \r | |
204 | @param Address PCI configuration register to read.\r | |
205 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
206 | Range 0..7.\r | |
207 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
208 | Range 0..7.\r | |
209 | \r | |
210 | @return The value of the bit field read from the PCI configuration register.\r | |
211 | \r | |
212 | **/\r | |
213 | UINT8\r | |
214 | EFIAPI\r | |
215 | PciBitFieldRead8 (\r | |
216 | IN UINTN Address,\r | |
217 | IN UINTN StartBit,\r | |
218 | IN UINTN EndBit\r | |
219 | )\r | |
220 | {\r | |
221 | return PciExpressBitFieldRead8 (Address, StartBit, EndBit);\r | |
222 | }\r | |
223 | \r | |
224 | /**\r | |
225 | Writes a bit field to a PCI configuration register.\r | |
226 | \r | |
227 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
228 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
229 | destination PCI configuration register are preserved. The new value of the\r | |
230 | 8-bit register is returned.\r | |
231 | \r | |
232 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
233 | If StartBit is greater than 7, then ASSERT().\r | |
234 | If EndBit is greater than 7, then ASSERT().\r | |
235 | If EndBit is less than StartBit, then ASSERT().\r | |
236 | \r | |
237 | @param Address PCI configuration register to write.\r | |
238 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
239 | Range 0..7.\r | |
240 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
241 | Range 0..7.\r | |
242 | @param Value New value of the bit field.\r | |
243 | \r | |
244 | @return The value written back to the PCI configuration register.\r | |
245 | \r | |
246 | **/\r | |
247 | UINT8\r | |
248 | EFIAPI\r | |
249 | PciBitFieldWrite8 (\r | |
250 | IN UINTN Address,\r | |
251 | IN UINTN StartBit,\r | |
252 | IN UINTN EndBit,\r | |
253 | IN UINT8 Value\r | |
254 | )\r | |
255 | {\r | |
256 | return PciExpressBitFieldWrite8 (Address, StartBit, EndBit, Value);\r | |
257 | }\r | |
258 | \r | |
259 | /**\r | |
260 | Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR, and\r | |
261 | writes the result back to the bit field in the 8-bit port.\r | |
262 | \r | |
263 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
264 | bitwise inclusive OR between the read result and the value specified by\r | |
265 | OrData, and writes the result to the 8-bit PCI configuration register\r | |
266 | specified by Address. The value written to the PCI configuration register is\r | |
267 | returned. This function must guarantee that all PCI read and write operations\r | |
268 | are serialized. Extra left bits in OrData are stripped.\r | |
269 | \r | |
270 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
271 | If StartBit is greater than 7, then ASSERT().\r | |
272 | If EndBit is greater than 7, then ASSERT().\r | |
273 | If EndBit is less than StartBit, then ASSERT().\r | |
274 | \r | |
275 | @param Address PCI configuration register to write.\r | |
276 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
277 | Range 0..7.\r | |
278 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
279 | Range 0..7.\r | |
280 | @param OrData The value to OR with the PCI configuration register.\r | |
281 | \r | |
282 | @return The value written back to the PCI configuration register.\r | |
283 | \r | |
284 | **/\r | |
285 | UINT8\r | |
286 | EFIAPI\r | |
287 | PciBitFieldOr8 (\r | |
288 | IN UINTN Address,\r | |
289 | IN UINTN StartBit,\r | |
290 | IN UINTN EndBit,\r | |
291 | IN UINT8 OrData\r | |
292 | )\r | |
293 | {\r | |
294 | return PciExpressBitFieldOr8 (Address, StartBit, EndBit, OrData);\r | |
295 | }\r | |
296 | \r | |
297 | /**\r | |
298 | Reads a bit field in an 8-bit PCI configuration register, performs a bitwise\r | |
299 | AND, and writes the result back to the bit field in the 8-bit register.\r | |
300 | \r | |
301 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
302 | bitwise AND between the read result and the value specified by AndData, and\r | |
303 | writes the result to the 8-bit PCI configuration register specified by\r | |
304 | Address. The value written to the PCI configuration register is returned.\r | |
305 | This function must guarantee that all PCI read and write operations are\r | |
306 | serialized. Extra left bits in AndData are stripped.\r | |
307 | \r | |
308 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
309 | If StartBit is greater than 7, then ASSERT().\r | |
310 | If EndBit is greater than 7, then ASSERT().\r | |
311 | If EndBit is less than StartBit, then ASSERT().\r | |
312 | \r | |
313 | @param Address PCI configuration register to write.\r | |
314 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
315 | Range 0..7.\r | |
316 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
317 | Range 0..7.\r | |
318 | @param AndData The value to AND with the PCI configuration register.\r | |
319 | \r | |
320 | @return The value written back to the PCI configuration register.\r | |
321 | \r | |
322 | **/\r | |
323 | UINT8\r | |
324 | EFIAPI\r | |
325 | PciBitFieldAnd8 (\r | |
326 | IN UINTN Address,\r | |
327 | IN UINTN StartBit,\r | |
328 | IN UINTN EndBit,\r | |
329 | IN UINT8 AndData\r | |
330 | )\r | |
331 | {\r | |
332 | return PciExpressBitFieldAnd8 (Address, StartBit, EndBit, AndData);\r | |
333 | }\r | |
334 | \r | |
335 | /**\r | |
336 | Reads a bit field in an 8-bit port, performs a bitwise AND followed by a\r | |
337 | bitwise inclusive OR, and writes the result back to the bit field in the\r | |
338 | 8-bit port.\r | |
339 | \r | |
340 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
341 | bitwise AND followed by a bitwise inclusive OR between the read result and\r | |
342 | the value specified by AndData, and writes the result to the 8-bit PCI\r | |
343 | configuration register specified by Address. The value written to the PCI\r | |
344 | configuration register is returned. This function must guarantee that all PCI\r | |
345 | read and write operations are serialized. Extra left bits in both AndData and\r | |
346 | OrData are stripped.\r | |
347 | \r | |
348 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
349 | If StartBit is greater than 7, then ASSERT().\r | |
350 | If EndBit is greater than 7, then ASSERT().\r | |
351 | If EndBit is less than StartBit, then ASSERT().\r | |
352 | \r | |
353 | @param Address PCI configuration register to write.\r | |
354 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
355 | Range 0..7.\r | |
356 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
357 | Range 0..7.\r | |
358 | @param AndData The value to AND with the PCI configuration register.\r | |
359 | @param OrData The value to OR with the result of the AND operation.\r | |
360 | \r | |
361 | @return The value written back to the PCI configuration register.\r | |
362 | \r | |
363 | **/\r | |
364 | UINT8\r | |
365 | EFIAPI\r | |
366 | PciBitFieldAndThenOr8 (\r | |
367 | IN UINTN Address,\r | |
368 | IN UINTN StartBit,\r | |
369 | IN UINTN EndBit,\r | |
370 | IN UINT8 AndData,\r | |
371 | IN UINT8 OrData\r | |
372 | )\r | |
373 | {\r | |
374 | return PciExpressBitFieldAndThenOr8 (Address, StartBit, EndBit, AndData, OrData);\r | |
375 | }\r | |
376 | \r | |
377 | /**\r | |
378 | Reads a 16-bit PCI configuration register.\r | |
379 | \r | |
380 | Reads and returns the 16-bit PCI configuration register specified by Address.\r | |
381 | This function must guarantee that all PCI read and write operations are\r | |
382 | serialized.\r | |
383 | \r | |
384 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
385 | \r | |
386 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
387 | Register.\r | |
388 | \r | |
389 | @return The read value from the PCI configuration register.\r | |
390 | \r | |
391 | **/\r | |
392 | UINT16\r | |
393 | EFIAPI\r | |
394 | PciRead16 (\r | |
395 | IN UINTN Address\r | |
396 | )\r | |
397 | {\r | |
398 | return PciExpressRead16 (Address);\r | |
399 | }\r | |
400 | \r | |
401 | /**\r | |
402 | Writes a 16-bit PCI configuration register.\r | |
403 | \r | |
404 | Writes the 16-bit PCI configuration register specified by Address with the\r | |
405 | value specified by Value. Value is returned. This function must guarantee\r | |
406 | that all PCI read and write operations are serialized.\r | |
407 | \r | |
408 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
409 | \r | |
410 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
411 | Register.\r | |
7612cbf0 | 412 | @param Value The value to write.\r |
e1f414b6 | 413 | \r |
414 | @return The value written to the PCI configuration register.\r | |
415 | \r | |
416 | **/\r | |
417 | UINT16\r | |
418 | EFIAPI\r | |
419 | PciWrite16 (\r | |
420 | IN UINTN Address,\r | |
94646ec0 | 421 | IN UINT16 Value\r |
e1f414b6 | 422 | )\r |
423 | {\r | |
94646ec0 | 424 | return PciExpressWrite16 (Address, Value);\r |
e1f414b6 | 425 | }\r |
426 | \r | |
427 | /**\r | |
428 | Performs a bitwise inclusive OR of a 16-bit PCI configuration register with\r | |
429 | a 16-bit value.\r | |
430 | \r | |
431 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
432 | bitwise inclusive OR between the read result and the value specified by\r | |
433 | OrData, and writes the result to the 16-bit PCI configuration register\r | |
434 | specified by Address. The value written to the PCI configuration register is\r | |
435 | returned. This function must guarantee that all PCI read and write operations\r | |
436 | are serialized.\r | |
437 | \r | |
438 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
439 | \r | |
440 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
441 | Register.\r | |
442 | @param OrData The value to OR with the PCI configuration register.\r | |
443 | \r | |
444 | @return The value written back to the PCI configuration register.\r | |
445 | \r | |
446 | **/\r | |
447 | UINT16\r | |
448 | EFIAPI\r | |
449 | PciOr16 (\r | |
450 | IN UINTN Address,\r | |
451 | IN UINT16 OrData\r | |
452 | )\r | |
453 | {\r | |
454 | return PciExpressOr16 (Address, OrData);\r | |
455 | }\r | |
456 | \r | |
457 | /**\r | |
458 | Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit\r | |
459 | value.\r | |
460 | \r | |
461 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
462 | bitwise AND between the read result and the value specified by AndData, and\r | |
463 | writes the result to the 16-bit PCI configuration register specified by\r | |
464 | Address. The value written to the PCI configuration register is returned.\r | |
465 | This function must guarantee that all PCI read and write operations are\r | |
466 | serialized.\r | |
467 | \r | |
468 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
469 | \r | |
470 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
471 | Register.\r | |
472 | @param AndData The value to AND with the PCI configuration register.\r | |
473 | \r | |
474 | @return The value written back to the PCI configuration register.\r | |
475 | \r | |
476 | **/\r | |
477 | UINT16\r | |
478 | EFIAPI\r | |
479 | PciAnd16 (\r | |
480 | IN UINTN Address,\r | |
481 | IN UINT16 AndData\r | |
482 | )\r | |
483 | {\r | |
484 | return PciExpressAnd16 (Address, AndData);\r | |
485 | }\r | |
486 | \r | |
487 | /**\r | |
488 | Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit\r | |
489 | value, followed a bitwise inclusive OR with another 16-bit value.\r | |
490 | \r | |
491 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
492 | bitwise AND between the read result and the value specified by AndData,\r | |
493 | performs a bitwise inclusive OR between the result of the AND operation and\r | |
494 | the value specified by OrData, and writes the result to the 16-bit PCI\r | |
495 | configuration register specified by Address. The value written to the PCI\r | |
496 | configuration register is returned. This function must guarantee that all PCI\r | |
497 | read and write operations are serialized.\r | |
498 | \r | |
499 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
500 | \r | |
501 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
502 | Register.\r | |
503 | @param AndData The value to AND with the PCI configuration register.\r | |
504 | @param OrData The value to OR with the result of the AND operation.\r | |
505 | \r | |
506 | @return The value written back to the PCI configuration register.\r | |
507 | \r | |
508 | **/\r | |
509 | UINT16\r | |
510 | EFIAPI\r | |
511 | PciAndThenOr16 (\r | |
512 | IN UINTN Address,\r | |
513 | IN UINT16 AndData,\r | |
514 | IN UINT16 OrData\r | |
515 | )\r | |
516 | {\r | |
517 | return PciExpressAndThenOr16 (Address, AndData, OrData);\r | |
518 | }\r | |
519 | \r | |
520 | /**\r | |
521 | Reads a bit field of a PCI configuration register.\r | |
522 | \r | |
523 | Reads the bit field in a 16-bit PCI configuration register. The bit field is\r | |
524 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
525 | returned.\r | |
526 | \r | |
527 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
528 | If StartBit is greater than 15, then ASSERT().\r | |
529 | If EndBit is greater than 15, then ASSERT().\r | |
530 | If EndBit is less than StartBit, then ASSERT().\r | |
531 | \r | |
532 | @param Address PCI configuration register to read.\r | |
533 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
534 | Range 0..15.\r | |
535 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
536 | Range 0..15.\r | |
537 | \r | |
538 | @return The value of the bit field read from the PCI configuration register.\r | |
539 | \r | |
540 | **/\r | |
541 | UINT16\r | |
542 | EFIAPI\r | |
543 | PciBitFieldRead16 (\r | |
544 | IN UINTN Address,\r | |
545 | IN UINTN StartBit,\r | |
546 | IN UINTN EndBit\r | |
547 | )\r | |
548 | {\r | |
549 | return PciExpressBitFieldRead16 (Address, StartBit, EndBit);\r | |
550 | }\r | |
551 | \r | |
552 | /**\r | |
553 | Writes a bit field to a PCI configuration register.\r | |
554 | \r | |
555 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
556 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
557 | destination PCI configuration register are preserved. The new value of the\r | |
558 | 16-bit register is returned.\r | |
559 | \r | |
560 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
561 | If StartBit is greater than 15, then ASSERT().\r | |
562 | If EndBit is greater than 15, then ASSERT().\r | |
563 | If EndBit is less than StartBit, then ASSERT().\r | |
564 | \r | |
565 | @param Address PCI configuration register to write.\r | |
566 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
567 | Range 0..15.\r | |
568 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
569 | Range 0..15.\r | |
570 | @param Value New value of the bit field.\r | |
571 | \r | |
572 | @return The value written back to the PCI configuration register.\r | |
573 | \r | |
574 | **/\r | |
575 | UINT16\r | |
576 | EFIAPI\r | |
577 | PciBitFieldWrite16 (\r | |
578 | IN UINTN Address,\r | |
579 | IN UINTN StartBit,\r | |
580 | IN UINTN EndBit,\r | |
581 | IN UINT16 Value\r | |
582 | )\r | |
583 | {\r | |
584 | return PciExpressBitFieldWrite16 (Address, StartBit, EndBit, Value);\r | |
585 | }\r | |
586 | \r | |
587 | /**\r | |
588 | Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, and\r | |
589 | writes the result back to the bit field in the 16-bit port.\r | |
590 | \r | |
591 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
592 | bitwise inclusive OR between the read result and the value specified by\r | |
593 | OrData, and writes the result to the 16-bit PCI configuration register\r | |
594 | specified by Address. The value written to the PCI configuration register is\r | |
595 | returned. This function must guarantee that all PCI read and write operations\r | |
596 | are serialized. Extra left bits in OrData are stripped.\r | |
597 | \r | |
598 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
599 | If StartBit is greater than 15, then ASSERT().\r | |
600 | If EndBit is greater than 15, then ASSERT().\r | |
601 | If EndBit is less than StartBit, then ASSERT().\r | |
602 | \r | |
603 | @param Address PCI configuration register to write.\r | |
604 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
605 | Range 0..15.\r | |
606 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
607 | Range 0..15.\r | |
608 | @param OrData The value to OR with the PCI configuration register.\r | |
609 | \r | |
610 | @return The value written back to the PCI configuration register.\r | |
611 | \r | |
612 | **/\r | |
613 | UINT16\r | |
614 | EFIAPI\r | |
615 | PciBitFieldOr16 (\r | |
616 | IN UINTN Address,\r | |
617 | IN UINTN StartBit,\r | |
618 | IN UINTN EndBit,\r | |
619 | IN UINT16 OrData\r | |
620 | )\r | |
621 | {\r | |
622 | return PciExpressBitFieldOr16 (Address, StartBit, EndBit, OrData);\r | |
623 | }\r | |
624 | \r | |
625 | /**\r | |
626 | Reads a bit field in a 16-bit PCI configuration register, performs a bitwise\r | |
627 | AND, and writes the result back to the bit field in the 16-bit register.\r | |
628 | \r | |
629 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
630 | bitwise AND between the read result and the value specified by AndData, and\r | |
631 | writes the result to the 16-bit PCI configuration register specified by\r | |
632 | Address. The value written to the PCI configuration register is returned.\r | |
633 | This function must guarantee that all PCI read and write operations are\r | |
634 | serialized. Extra left bits in AndData are stripped.\r | |
635 | \r | |
636 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
637 | If StartBit is greater than 15, then ASSERT().\r | |
638 | If EndBit is greater than 15, then ASSERT().\r | |
639 | If EndBit is less than StartBit, then ASSERT().\r | |
640 | \r | |
641 | @param Address PCI configuration register to write.\r | |
642 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
643 | Range 0..15.\r | |
644 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
645 | Range 0..15.\r | |
646 | @param AndData The value to AND with the PCI configuration register.\r | |
647 | \r | |
648 | @return The value written back to the PCI configuration register.\r | |
649 | \r | |
650 | **/\r | |
651 | UINT16\r | |
652 | EFIAPI\r | |
653 | PciBitFieldAnd16 (\r | |
654 | IN UINTN Address,\r | |
655 | IN UINTN StartBit,\r | |
656 | IN UINTN EndBit,\r | |
657 | IN UINT16 AndData\r | |
658 | )\r | |
659 | {\r | |
660 | return PciExpressBitFieldAnd16 (Address, StartBit, EndBit, AndData);\r | |
661 | }\r | |
662 | \r | |
663 | /**\r | |
664 | Reads a bit field in a 16-bit port, performs a bitwise AND followed by a\r | |
665 | bitwise inclusive OR, and writes the result back to the bit field in the\r | |
666 | 16-bit port.\r | |
667 | \r | |
668 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
669 | bitwise AND followed by a bitwise inclusive OR between the read result and\r | |
670 | the value specified by AndData, and writes the result to the 16-bit PCI\r | |
671 | configuration register specified by Address. The value written to the PCI\r | |
672 | configuration register is returned. This function must guarantee that all PCI\r | |
673 | read and write operations are serialized. Extra left bits in both AndData and\r | |
674 | OrData are stripped.\r | |
675 | \r | |
676 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
677 | If StartBit is greater than 15, then ASSERT().\r | |
678 | If EndBit is greater than 15, then ASSERT().\r | |
679 | If EndBit is less than StartBit, then ASSERT().\r | |
680 | \r | |
681 | @param Address PCI configuration register to write.\r | |
682 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
683 | Range 0..15.\r | |
684 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
685 | Range 0..15.\r | |
686 | @param AndData The value to AND with the PCI configuration register.\r | |
687 | @param OrData The value to OR with the result of the AND operation.\r | |
688 | \r | |
689 | @return The value written back to the PCI configuration register.\r | |
690 | \r | |
691 | **/\r | |
692 | UINT16\r | |
693 | EFIAPI\r | |
694 | PciBitFieldAndThenOr16 (\r | |
695 | IN UINTN Address,\r | |
696 | IN UINTN StartBit,\r | |
697 | IN UINTN EndBit,\r | |
698 | IN UINT16 AndData,\r | |
699 | IN UINT16 OrData\r | |
700 | )\r | |
701 | {\r | |
702 | return PciExpressBitFieldAndThenOr16 (Address, StartBit, EndBit, AndData, OrData);\r | |
703 | }\r | |
704 | \r | |
705 | /**\r | |
706 | Reads a 32-bit PCI configuration register.\r | |
707 | \r | |
708 | Reads and returns the 32-bit PCI configuration register specified by Address.\r | |
709 | This function must guarantee that all PCI read and write operations are\r | |
710 | serialized.\r | |
711 | \r | |
712 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
713 | \r | |
714 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
715 | Register.\r | |
716 | \r | |
717 | @return The read value from the PCI configuration register.\r | |
718 | \r | |
719 | **/\r | |
720 | UINT32\r | |
721 | EFIAPI\r | |
722 | PciRead32 (\r | |
723 | IN UINTN Address\r | |
724 | )\r | |
725 | {\r | |
726 | return PciExpressRead32 (Address);\r | |
727 | }\r | |
728 | \r | |
729 | /**\r | |
730 | Writes a 32-bit PCI configuration register.\r | |
731 | \r | |
732 | Writes the 32-bit PCI configuration register specified by Address with the\r | |
733 | value specified by Value. Value is returned. This function must guarantee\r | |
734 | that all PCI read and write operations are serialized.\r | |
735 | \r | |
736 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
737 | \r | |
738 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
739 | Register.\r | |
7612cbf0 | 740 | @param Value The value to write.\r |
e1f414b6 | 741 | \r |
742 | @return The value written to the PCI configuration register.\r | |
743 | \r | |
744 | **/\r | |
745 | UINT32\r | |
746 | EFIAPI\r | |
747 | PciWrite32 (\r | |
748 | IN UINTN Address,\r | |
94646ec0 | 749 | IN UINT32 Value\r |
e1f414b6 | 750 | )\r |
751 | {\r | |
94646ec0 | 752 | return PciExpressWrite32 (Address, Value);\r |
e1f414b6 | 753 | }\r |
754 | \r | |
755 | /**\r | |
756 | Performs a bitwise inclusive OR of a 32-bit PCI configuration register with\r | |
757 | a 32-bit value.\r | |
758 | \r | |
759 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
760 | bitwise inclusive OR between the read result and the value specified by\r | |
761 | OrData, and writes the result to the 32-bit PCI configuration register\r | |
762 | specified by Address. The value written to the PCI configuration register is\r | |
763 | returned. This function must guarantee that all PCI read and write operations\r | |
764 | are serialized.\r | |
765 | \r | |
766 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
767 | \r | |
768 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
769 | Register.\r | |
770 | @param OrData The value to OR with the PCI configuration register.\r | |
771 | \r | |
772 | @return The value written back to the PCI configuration register.\r | |
773 | \r | |
774 | **/\r | |
775 | UINT32\r | |
776 | EFIAPI\r | |
777 | PciOr32 (\r | |
778 | IN UINTN Address,\r | |
779 | IN UINT32 OrData\r | |
780 | )\r | |
781 | {\r | |
782 | return PciExpressOr32 (Address, OrData);\r | |
783 | }\r | |
784 | \r | |
785 | /**\r | |
786 | Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit\r | |
787 | value.\r | |
788 | \r | |
789 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
790 | bitwise AND between the read result and the value specified by AndData, and\r | |
791 | writes the result to the 32-bit PCI configuration register specified by\r | |
792 | Address. The value written to the PCI configuration register is returned.\r | |
793 | This function must guarantee that all PCI read and write operations are\r | |
794 | serialized.\r | |
795 | \r | |
796 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
797 | \r | |
798 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
799 | Register.\r | |
800 | @param AndData The value to AND with the PCI configuration register.\r | |
801 | \r | |
802 | @return The value written back to the PCI configuration register.\r | |
803 | \r | |
804 | **/\r | |
805 | UINT32\r | |
806 | EFIAPI\r | |
807 | PciAnd32 (\r | |
808 | IN UINTN Address,\r | |
809 | IN UINT32 AndData\r | |
810 | )\r | |
811 | {\r | |
812 | return PciExpressAnd32 (Address, AndData);\r | |
813 | }\r | |
814 | \r | |
815 | /**\r | |
816 | Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit\r | |
817 | value, followed a bitwise inclusive OR with another 32-bit value.\r | |
818 | \r | |
819 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
820 | bitwise AND between the read result and the value specified by AndData,\r | |
821 | performs a bitwise inclusive OR between the result of the AND operation and\r | |
822 | the value specified by OrData, and writes the result to the 32-bit PCI\r | |
823 | configuration register specified by Address. The value written to the PCI\r | |
824 | configuration register is returned. This function must guarantee that all PCI\r | |
825 | read and write operations are serialized.\r | |
826 | \r | |
827 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
828 | \r | |
829 | @param Address Address that encodes the PCI Bus, Device, Function and\r | |
830 | Register.\r | |
831 | @param AndData The value to AND with the PCI configuration register.\r | |
832 | @param OrData The value to OR with the result of the AND operation.\r | |
833 | \r | |
834 | @return The value written back to the PCI configuration register.\r | |
835 | \r | |
836 | **/\r | |
837 | UINT32\r | |
838 | EFIAPI\r | |
839 | PciAndThenOr32 (\r | |
840 | IN UINTN Address,\r | |
841 | IN UINT32 AndData,\r | |
842 | IN UINT32 OrData\r | |
843 | )\r | |
844 | {\r | |
845 | return PciExpressAndThenOr32 (Address, AndData, OrData);\r | |
846 | }\r | |
847 | \r | |
848 | /**\r | |
849 | Reads a bit field of a PCI configuration register.\r | |
850 | \r | |
851 | Reads the bit field in a 32-bit PCI configuration register. The bit field is\r | |
852 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
853 | returned.\r | |
854 | \r | |
855 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
856 | If StartBit is greater than 31, then ASSERT().\r | |
857 | If EndBit is greater than 31, then ASSERT().\r | |
858 | If EndBit is less than StartBit, then ASSERT().\r | |
859 | \r | |
860 | @param Address PCI configuration register to read.\r | |
861 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
862 | Range 0..31.\r | |
863 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
864 | Range 0..31.\r | |
865 | \r | |
866 | @return The value of the bit field read from the PCI configuration register.\r | |
867 | \r | |
868 | **/\r | |
869 | UINT32\r | |
870 | EFIAPI\r | |
871 | PciBitFieldRead32 (\r | |
872 | IN UINTN Address,\r | |
873 | IN UINTN StartBit,\r | |
874 | IN UINTN EndBit\r | |
875 | )\r | |
876 | {\r | |
877 | return PciExpressBitFieldRead32 (Address, StartBit, EndBit);\r | |
878 | }\r | |
879 | \r | |
880 | /**\r | |
881 | Writes a bit field to a PCI configuration register.\r | |
882 | \r | |
883 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
884 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
885 | destination PCI configuration register are preserved. The new value of the\r | |
886 | 32-bit register is returned.\r | |
887 | \r | |
888 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
889 | If StartBit is greater than 31, then ASSERT().\r | |
890 | If EndBit is greater than 31, then ASSERT().\r | |
891 | If EndBit is less than StartBit, then ASSERT().\r | |
892 | \r | |
893 | @param Address PCI configuration register to write.\r | |
894 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
895 | Range 0..31.\r | |
896 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
897 | Range 0..31.\r | |
898 | @param Value New value of the bit field.\r | |
899 | \r | |
900 | @return The value written back to the PCI configuration register.\r | |
901 | \r | |
902 | **/\r | |
903 | UINT32\r | |
904 | EFIAPI\r | |
905 | PciBitFieldWrite32 (\r | |
906 | IN UINTN Address,\r | |
907 | IN UINTN StartBit,\r | |
908 | IN UINTN EndBit,\r | |
909 | IN UINT32 Value\r | |
910 | )\r | |
911 | {\r | |
912 | return PciExpressBitFieldWrite32 (Address, StartBit, EndBit, Value);\r | |
913 | }\r | |
914 | \r | |
915 | /**\r | |
916 | Reads a bit field in a 32-bit PCI configuration, performs a bitwise OR, and\r | |
917 | writes the result back to the bit field in the 32-bit port.\r | |
918 | \r | |
919 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
920 | bitwise inclusive OR between the read result and the value specified by\r | |
921 | OrData, and writes the result to the 32-bit PCI configuration register\r | |
922 | specified by Address. The value written to the PCI configuration register is\r | |
923 | returned. This function must guarantee that all PCI read and write operations\r | |
924 | are serialized. Extra left bits in OrData are stripped.\r | |
925 | \r | |
926 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
927 | If StartBit is greater than 31, then ASSERT().\r | |
928 | If EndBit is greater than 31, then ASSERT().\r | |
929 | If EndBit is less than StartBit, then ASSERT().\r | |
930 | \r | |
931 | @param Address PCI configuration register to write.\r | |
932 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
933 | Range 0..31.\r | |
934 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
935 | Range 0..31.\r | |
936 | @param OrData The value to OR with the PCI configuration register.\r | |
937 | \r | |
938 | @return The value written back to the PCI configuration register.\r | |
939 | \r | |
940 | **/\r | |
941 | UINT32\r | |
942 | EFIAPI\r | |
943 | PciBitFieldOr32 (\r | |
944 | IN UINTN Address,\r | |
945 | IN UINTN StartBit,\r | |
946 | IN UINTN EndBit,\r | |
947 | IN UINT32 OrData\r | |
948 | )\r | |
949 | {\r | |
950 | return PciExpressBitFieldOr32 (Address, StartBit, EndBit, OrData);\r | |
951 | }\r | |
952 | \r | |
953 | /**\r | |
954 | Reads a bit field in a 32-bit PCI configuration register, performs a bitwise\r | |
955 | AND, and writes the result back to the bit field in the 32-bit register.\r | |
956 | \r | |
957 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
958 | bitwise AND between the read result and the value specified by AndData, and\r | |
959 | writes the result to the 32-bit PCI configuration register specified by\r | |
960 | Address. The value written to the PCI configuration register is returned.\r | |
961 | This function must guarantee that all PCI read and write operations are\r | |
962 | serialized. Extra left bits in AndData are stripped.\r | |
963 | \r | |
964 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
965 | If StartBit is greater than 31, then ASSERT().\r | |
966 | If EndBit is greater than 31, then ASSERT().\r | |
967 | If EndBit is less than StartBit, then ASSERT().\r | |
968 | \r | |
969 | @param Address PCI configuration register to write.\r | |
970 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
971 | Range 0..31.\r | |
972 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
973 | Range 0..31.\r | |
974 | @param AndData The value to AND with the PCI configuration register.\r | |
975 | \r | |
976 | @return The value written back to the PCI configuration register.\r | |
977 | \r | |
978 | **/\r | |
979 | UINT32\r | |
980 | EFIAPI\r | |
981 | PciBitFieldAnd32 (\r | |
982 | IN UINTN Address,\r | |
983 | IN UINTN StartBit,\r | |
984 | IN UINTN EndBit,\r | |
985 | IN UINT32 AndData\r | |
986 | )\r | |
987 | {\r | |
988 | return PciExpressBitFieldAnd32 (Address, StartBit, EndBit, AndData);\r | |
989 | }\r | |
990 | \r | |
991 | /**\r | |
992 | Reads a bit field in a 32-bit port, performs a bitwise AND followed by a\r | |
993 | bitwise inclusive OR, and writes the result back to the bit field in the\r | |
994 | 32-bit port.\r | |
995 | \r | |
996 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
997 | bitwise AND followed by a bitwise inclusive OR between the read result and\r | |
998 | the value specified by AndData, and writes the result to the 32-bit PCI\r | |
999 | configuration register specified by Address. The value written to the PCI\r | |
1000 | configuration register is returned. This function must guarantee that all PCI\r | |
1001 | read and write operations are serialized. Extra left bits in both AndData and\r | |
1002 | OrData are stripped.\r | |
1003 | \r | |
1004 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1005 | If StartBit is greater than 31, then ASSERT().\r | |
1006 | If EndBit is greater than 31, then ASSERT().\r | |
1007 | If EndBit is less than StartBit, then ASSERT().\r | |
1008 | \r | |
1009 | @param Address PCI configuration register to write.\r | |
1010 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1011 | Range 0..31.\r | |
1012 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1013 | Range 0..31.\r | |
1014 | @param AndData The value to AND with the PCI configuration register.\r | |
1015 | @param OrData The value to OR with the result of the AND operation.\r | |
1016 | \r | |
1017 | @return The value written back to the PCI configuration register.\r | |
1018 | \r | |
1019 | **/\r | |
1020 | UINT32\r | |
1021 | EFIAPI\r | |
1022 | PciBitFieldAndThenOr32 (\r | |
1023 | IN UINTN Address,\r | |
1024 | IN UINTN StartBit,\r | |
1025 | IN UINTN EndBit,\r | |
1026 | IN UINT32 AndData,\r | |
1027 | IN UINT32 OrData\r | |
1028 | )\r | |
1029 | {\r | |
1030 | return PciExpressBitFieldAndThenOr32 (Address, StartBit, EndBit, AndData, OrData);\r | |
1031 | }\r | |
1032 | \r | |
1033 | /**\r | |
1034 | Reads a range of PCI configuration registers into a caller supplied buffer.\r | |
1035 | \r | |
1036 | Reads the range of PCI configuration registers specified by StartAddress and\r | |
1037 | Size into the buffer specified by Buffer. This function only allows the PCI\r | |
1038 | configuration registers from a single PCI function to be read. Size is\r | |
1039 | returned. When possible 32-bit PCI configuration read cycles are used to read\r | |
1040 | from StartAdress to StartAddress + Size. Due to alignment restrictions, 8-bit\r | |
1041 | and 16-bit PCI configuration read cycles may be used at the beginning and the\r | |
1042 | end of the range.\r | |
1043 | \r | |
1044 | If StartAddress > 0x0FFFFFFF, then ASSERT().\r | |
1045 | If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().\r | |
1046 | If Size > 0 and Buffer is NULL, then ASSERT().\r | |
1047 | \r | |
1048 | @param StartAddress Starting address that encodes the PCI Bus, Device,\r | |
1049 | Function and Register.\r | |
1050 | @param Size Size in bytes of the transfer.\r | |
1051 | @param Buffer Pointer to a buffer receiving the data read.\r | |
1052 | \r | |
1053 | @return Size\r | |
1054 | \r | |
1055 | **/\r | |
1056 | UINTN\r | |
1057 | EFIAPI\r | |
1058 | PciReadBuffer (\r | |
1059 | IN UINTN StartAddress,\r | |
1060 | IN UINTN Size,\r | |
1061 | OUT VOID *Buffer\r | |
1062 | )\r | |
1063 | {\r | |
1064 | return PciExpressReadBuffer (StartAddress, Size, Buffer);\r | |
1065 | }\r | |
1066 | \r | |
1067 | /**\r | |
1068 | Copies the data in a caller supplied buffer to a specified range of PCI\r | |
1069 | configuration space.\r | |
1070 | \r | |
1071 | Writes the range of PCI configuration registers specified by StartAddress and\r | |
1072 | Size from the buffer specified by Buffer. This function only allows the PCI\r | |
1073 | configuration registers from a single PCI function to be written. Size is\r | |
1074 | returned. When possible 32-bit PCI configuration write cycles are used to\r | |
1075 | write from StartAdress to StartAddress + Size. Due to alignment restrictions,\r | |
1076 | 8-bit and 16-bit PCI configuration write cycles may be used at the beginning\r | |
1077 | and the end of the range.\r | |
1078 | \r | |
1079 | If StartAddress > 0x0FFFFFFF, then ASSERT().\r | |
1080 | If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().\r | |
1081 | If Size > 0 and Buffer is NULL, then ASSERT().\r | |
1082 | \r | |
1083 | @param StartAddress Starting address that encodes the PCI Bus, Device,\r | |
1084 | Function and Register.\r | |
1085 | @param Size Size in bytes of the transfer.\r | |
1086 | @param Buffer Pointer to a buffer containing the data to write.\r | |
1087 | \r | |
1088 | @return Size\r | |
1089 | \r | |
1090 | **/\r | |
1091 | UINTN\r | |
1092 | EFIAPI\r | |
1093 | PciWriteBuffer (\r | |
1094 | IN UINTN StartAddress,\r | |
1095 | IN UINTN Size,\r | |
1096 | IN VOID *Buffer\r | |
1097 | )\r | |
1098 | {\r | |
1099 | return PciExpressWriteBuffer (StartAddress, Size, Buffer);\r | |
1100 | }\r |