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1 | /** @file\r |
2 | PCI Library functions that use\r | |
3 | (a) I/O ports 0xCF8 and 0xCFC to perform PCI Configuration cycles, layering\r | |
4 | on top of one PCI CF8 Library instance; or\r | |
5 | (b) PCI Library functions that use the 256 MB PCI Express MMIO window to\r | |
6 | perform PCI Configuration cycles, layering on PCI Express Library.\r | |
7 | \r | |
8 | The decision is made in the entry point function, based on the OVMF platform\r | |
9 | type, and then adhered to during the lifetime of the client module.\r | |
10 | \r | |
11 | Copyright (C) 2016, Red Hat, Inc.\r | |
12 | \r | |
13 | Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r | |
14 | This program and the accompanying materials\r | |
15 | are licensed and made available under the terms and conditions of the BSD License\r | |
16 | which accompanies this distribution. The full text of the license may be found at\r | |
17 | http://opensource.org/licenses/bsd-license.php.\r | |
18 | \r | |
19 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
20 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
21 | \r | |
22 | **/\r | |
23 | \r | |
24 | \r | |
25 | #include <Base.h>\r | |
26 | \r | |
27 | #include <IndustryStandard/Q35MchIch9.h>\r | |
28 | \r | |
29 | #include <Library/PciLib.h>\r | |
30 | #include <Library/PciCf8Lib.h>\r | |
31 | #include <Library/PciExpressLib.h>\r | |
32 | #include <Library/PcdLib.h>\r | |
33 | \r | |
34 | STATIC BOOLEAN mRunningOnQ35;\r | |
35 | \r | |
36 | RETURN_STATUS\r | |
37 | EFIAPI\r | |
38 | InitializeConfigAccessMethod (\r | |
39 | VOID\r | |
40 | )\r | |
41 | {\r | |
42 | mRunningOnQ35 = (PcdGet16 (PcdOvmfHostBridgePciDevId) ==\r | |
43 | INTEL_Q35_MCH_DEVICE_ID);\r | |
44 | return RETURN_SUCCESS;\r | |
45 | }\r | |
46 | \r | |
47 | /**\r | |
48 | Registers a PCI device so PCI configuration registers may be accessed after \r | |
49 | SetVirtualAddressMap().\r | |
50 | \r | |
51 | Registers the PCI device specified by Address so all the PCI configuration registers \r | |
52 | associated with that PCI device may be accessed after SetVirtualAddressMap() is called.\r | |
53 | \r | |
54 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
55 | \r | |
56 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
57 | Register.\r | |
58 | \r | |
59 | @retval RETURN_SUCCESS The PCI device was registered for runtime access.\r | |
60 | @retval RETURN_UNSUPPORTED An attempt was made to call this function \r | |
61 | after ExitBootServices().\r | |
62 | @retval RETURN_UNSUPPORTED The resources required to access the PCI device\r | |
63 | at runtime could not be mapped.\r | |
64 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources available to\r | |
65 | complete the registration.\r | |
66 | \r | |
67 | **/\r | |
68 | RETURN_STATUS\r | |
69 | EFIAPI\r | |
70 | PciRegisterForRuntimeAccess (\r | |
71 | IN UINTN Address\r | |
72 | )\r | |
73 | {\r | |
74 | return mRunningOnQ35 ?\r | |
75 | PciExpressRegisterForRuntimeAccess (Address) :\r | |
76 | PciCf8RegisterForRuntimeAccess (Address);\r | |
77 | }\r | |
78 | \r | |
79 | /**\r | |
80 | Reads an 8-bit PCI configuration register.\r | |
81 | \r | |
82 | Reads and returns the 8-bit PCI configuration register specified by Address.\r | |
83 | This function must guarantee that all PCI read and write operations are\r | |
84 | serialized.\r | |
85 | \r | |
86 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
87 | \r | |
88 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
89 | Register.\r | |
90 | \r | |
91 | @return The read value from the PCI configuration register.\r | |
92 | \r | |
93 | **/\r | |
94 | UINT8\r | |
95 | EFIAPI\r | |
96 | PciRead8 (\r | |
97 | IN UINTN Address\r | |
98 | )\r | |
99 | {\r | |
100 | return mRunningOnQ35 ?\r | |
101 | PciExpressRead8 (Address) :\r | |
102 | PciCf8Read8 (Address);\r | |
103 | }\r | |
104 | \r | |
105 | /**\r | |
106 | Writes an 8-bit PCI configuration register.\r | |
107 | \r | |
108 | Writes the 8-bit PCI configuration register specified by Address with the\r | |
109 | value specified by Value. Value is returned. This function must guarantee\r | |
110 | that all PCI read and write operations are serialized.\r | |
111 | \r | |
112 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
113 | \r | |
114 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
115 | Register.\r | |
116 | @param Value The value to write.\r | |
117 | \r | |
118 | @return The value written to the PCI configuration register.\r | |
119 | \r | |
120 | **/\r | |
121 | UINT8\r | |
122 | EFIAPI\r | |
123 | PciWrite8 (\r | |
124 | IN UINTN Address,\r | |
125 | IN UINT8 Value\r | |
126 | )\r | |
127 | {\r | |
128 | return mRunningOnQ35 ?\r | |
129 | PciExpressWrite8 (Address, Value) :\r | |
130 | PciCf8Write8 (Address, Value);\r | |
131 | }\r | |
132 | \r | |
133 | /**\r | |
134 | Performs a bitwise OR of an 8-bit PCI configuration register with\r | |
135 | an 8-bit value.\r | |
136 | \r | |
137 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
138 | bitwise OR between the read result and the value specified by\r | |
139 | OrData, and writes the result to the 8-bit PCI configuration register\r | |
140 | specified by Address. The value written to the PCI configuration register is\r | |
141 | returned. This function must guarantee that all PCI read and write operations\r | |
142 | are serialized.\r | |
143 | \r | |
144 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
145 | \r | |
146 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
147 | Register.\r | |
148 | @param OrData The value to OR with the PCI configuration register.\r | |
149 | \r | |
150 | @return The value written back to the PCI configuration register.\r | |
151 | \r | |
152 | **/\r | |
153 | UINT8\r | |
154 | EFIAPI\r | |
155 | PciOr8 (\r | |
156 | IN UINTN Address,\r | |
157 | IN UINT8 OrData\r | |
158 | )\r | |
159 | {\r | |
160 | return mRunningOnQ35 ?\r | |
161 | PciExpressOr8 (Address, OrData) :\r | |
162 | PciCf8Or8 (Address, OrData);\r | |
163 | }\r | |
164 | \r | |
165 | /**\r | |
166 | Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit\r | |
167 | value.\r | |
168 | \r | |
169 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
170 | bitwise AND between the read result and the value specified by AndData, and\r | |
171 | writes the result to the 8-bit PCI configuration register specified by\r | |
172 | Address. The value written to the PCI configuration register is returned.\r | |
173 | This function must guarantee that all PCI read and write operations are\r | |
174 | serialized.\r | |
175 | \r | |
176 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
177 | \r | |
178 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
179 | Register.\r | |
180 | @param AndData The value to AND with the PCI configuration register.\r | |
181 | \r | |
182 | @return The value written back to the PCI configuration register.\r | |
183 | \r | |
184 | **/\r | |
185 | UINT8\r | |
186 | EFIAPI\r | |
187 | PciAnd8 (\r | |
188 | IN UINTN Address,\r | |
189 | IN UINT8 AndData\r | |
190 | )\r | |
191 | {\r | |
192 | return mRunningOnQ35 ?\r | |
193 | PciExpressAnd8 (Address, AndData) :\r | |
194 | PciCf8And8 (Address, AndData);\r | |
195 | }\r | |
196 | \r | |
197 | /**\r | |
198 | Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit\r | |
199 | value, followed a bitwise OR with another 8-bit value.\r | |
200 | \r | |
201 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
202 | bitwise AND between the read result and the value specified by AndData,\r | |
203 | performs a bitwise OR between the result of the AND operation and\r | |
204 | the value specified by OrData, and writes the result to the 8-bit PCI\r | |
205 | configuration register specified by Address. The value written to the PCI\r | |
206 | configuration register is returned. This function must guarantee that all PCI\r | |
207 | read and write operations are serialized.\r | |
208 | \r | |
209 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
210 | \r | |
211 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
212 | Register.\r | |
213 | @param AndData The value to AND with the PCI configuration register.\r | |
214 | @param OrData The value to OR with the result of the AND operation.\r | |
215 | \r | |
216 | @return The value written back to the PCI configuration register.\r | |
217 | \r | |
218 | **/\r | |
219 | UINT8\r | |
220 | EFIAPI\r | |
221 | PciAndThenOr8 (\r | |
222 | IN UINTN Address,\r | |
223 | IN UINT8 AndData,\r | |
224 | IN UINT8 OrData\r | |
225 | )\r | |
226 | {\r | |
227 | return mRunningOnQ35 ?\r | |
228 | PciExpressAndThenOr8 (Address, AndData, OrData) :\r | |
229 | PciCf8AndThenOr8 (Address, AndData, OrData);\r | |
230 | }\r | |
231 | \r | |
232 | /**\r | |
233 | Reads a bit field of a PCI configuration register.\r | |
234 | \r | |
235 | Reads the bit field in an 8-bit PCI configuration register. The bit field is\r | |
236 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
237 | returned.\r | |
238 | \r | |
239 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
240 | If StartBit is greater than 7, then ASSERT().\r | |
241 | If EndBit is greater than 7, then ASSERT().\r | |
242 | If EndBit is less than StartBit, then ASSERT().\r | |
243 | \r | |
244 | @param Address The PCI configuration register to read.\r | |
245 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
246 | Range 0..7.\r | |
247 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
248 | Range 0..7.\r | |
249 | \r | |
250 | @return The value of the bit field read from the PCI configuration register.\r | |
251 | \r | |
252 | **/\r | |
253 | UINT8\r | |
254 | EFIAPI\r | |
255 | PciBitFieldRead8 (\r | |
256 | IN UINTN Address,\r | |
257 | IN UINTN StartBit,\r | |
258 | IN UINTN EndBit\r | |
259 | )\r | |
260 | {\r | |
261 | return mRunningOnQ35 ?\r | |
262 | PciExpressBitFieldRead8 (Address, StartBit, EndBit) :\r | |
263 | PciCf8BitFieldRead8 (Address, StartBit, EndBit);\r | |
264 | }\r | |
265 | \r | |
266 | /**\r | |
267 | Writes a bit field to a PCI configuration register.\r | |
268 | \r | |
269 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
270 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
271 | destination PCI configuration register are preserved. The new value of the\r | |
272 | 8-bit register is returned.\r | |
273 | \r | |
274 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
275 | If StartBit is greater than 7, then ASSERT().\r | |
276 | If EndBit is greater than 7, then ASSERT().\r | |
277 | If EndBit is less than StartBit, then ASSERT().\r | |
278 | If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
279 | \r | |
280 | @param Address The PCI configuration register to write.\r | |
281 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
282 | Range 0..7.\r | |
283 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
284 | Range 0..7.\r | |
285 | @param Value The new value of the bit field.\r | |
286 | \r | |
287 | @return The value written back to the PCI configuration register.\r | |
288 | \r | |
289 | **/\r | |
290 | UINT8\r | |
291 | EFIAPI\r | |
292 | PciBitFieldWrite8 (\r | |
293 | IN UINTN Address,\r | |
294 | IN UINTN StartBit,\r | |
295 | IN UINTN EndBit,\r | |
296 | IN UINT8 Value\r | |
297 | )\r | |
298 | {\r | |
299 | return mRunningOnQ35 ?\r | |
300 | PciExpressBitFieldWrite8 (Address, StartBit, EndBit, Value) :\r | |
301 | PciCf8BitFieldWrite8 (Address, StartBit, EndBit, Value);\r | |
302 | }\r | |
303 | \r | |
304 | /**\r | |
305 | Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR, and\r | |
306 | writes the result back to the bit field in the 8-bit port.\r | |
307 | \r | |
308 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
309 | bitwise OR between the read result and the value specified by\r | |
310 | OrData, and writes the result to the 8-bit PCI configuration register\r | |
311 | specified by Address. The value written to the PCI configuration register is\r | |
312 | returned. This function must guarantee that all PCI read and write operations\r | |
313 | are serialized. Extra left bits in OrData are stripped.\r | |
314 | \r | |
315 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
316 | If StartBit is greater than 7, then ASSERT().\r | |
317 | If EndBit is greater than 7, then ASSERT().\r | |
318 | If EndBit is less than StartBit, then ASSERT().\r | |
319 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
320 | \r | |
321 | @param Address The PCI configuration register to write.\r | |
322 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
323 | Range 0..7.\r | |
324 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
325 | Range 0..7.\r | |
326 | @param OrData The value to OR with the PCI configuration register.\r | |
327 | \r | |
328 | @return The value written back to the PCI configuration register.\r | |
329 | \r | |
330 | **/\r | |
331 | UINT8\r | |
332 | EFIAPI\r | |
333 | PciBitFieldOr8 (\r | |
334 | IN UINTN Address,\r | |
335 | IN UINTN StartBit,\r | |
336 | IN UINTN EndBit,\r | |
337 | IN UINT8 OrData\r | |
338 | )\r | |
339 | {\r | |
340 | return mRunningOnQ35 ?\r | |
341 | PciExpressBitFieldOr8 (Address, StartBit, EndBit, OrData) :\r | |
342 | PciCf8BitFieldOr8 (Address, StartBit, EndBit, OrData);\r | |
343 | }\r | |
344 | \r | |
345 | /**\r | |
346 | Reads a bit field in an 8-bit PCI configuration register, performs a bitwise\r | |
347 | AND, and writes the result back to the bit field in the 8-bit register.\r | |
348 | \r | |
349 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
350 | bitwise AND between the read result and the value specified by AndData, and\r | |
351 | writes the result to the 8-bit PCI configuration register specified by\r | |
352 | Address. The value written to the PCI configuration register is returned.\r | |
353 | This function must guarantee that all PCI read and write operations are\r | |
354 | serialized. Extra left bits in AndData are stripped.\r | |
355 | \r | |
356 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
357 | If StartBit is greater than 7, then ASSERT().\r | |
358 | If EndBit is greater than 7, then ASSERT().\r | |
359 | If EndBit is less than StartBit, then ASSERT().\r | |
360 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
361 | \r | |
362 | @param Address The PCI configuration register to write.\r | |
363 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
364 | Range 0..7.\r | |
365 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
366 | Range 0..7.\r | |
367 | @param AndData The value to AND with the PCI configuration register.\r | |
368 | \r | |
369 | @return The value written back to the PCI configuration register.\r | |
370 | \r | |
371 | **/\r | |
372 | UINT8\r | |
373 | EFIAPI\r | |
374 | PciBitFieldAnd8 (\r | |
375 | IN UINTN Address,\r | |
376 | IN UINTN StartBit,\r | |
377 | IN UINTN EndBit,\r | |
378 | IN UINT8 AndData\r | |
379 | )\r | |
380 | {\r | |
381 | return mRunningOnQ35 ?\r | |
382 | PciExpressBitFieldAnd8 (Address, StartBit, EndBit, AndData) :\r | |
383 | PciCf8BitFieldAnd8 (Address, StartBit, EndBit, AndData);\r | |
384 | }\r | |
385 | \r | |
386 | /**\r | |
387 | Reads a bit field in an 8-bit port, performs a bitwise AND followed by a\r | |
388 | bitwise OR, and writes the result back to the bit field in the\r | |
389 | 8-bit port.\r | |
390 | \r | |
391 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
392 | bitwise AND followed by a bitwise OR between the read result and\r | |
393 | the value specified by AndData, and writes the result to the 8-bit PCI\r | |
394 | configuration register specified by Address. The value written to the PCI\r | |
395 | configuration register is returned. This function must guarantee that all PCI\r | |
396 | read and write operations are serialized. Extra left bits in both AndData and\r | |
397 | OrData are stripped.\r | |
398 | \r | |
399 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
400 | If StartBit is greater than 7, then ASSERT().\r | |
401 | If EndBit is greater than 7, then ASSERT().\r | |
402 | If EndBit is less than StartBit, then ASSERT().\r | |
403 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
404 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
405 | \r | |
406 | @param Address The PCI configuration register to write.\r | |
407 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
408 | Range 0..7.\r | |
409 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
410 | Range 0..7.\r | |
411 | @param AndData The value to AND with the PCI configuration register.\r | |
412 | @param OrData The value to OR with the result of the AND operation.\r | |
413 | \r | |
414 | @return The value written back to the PCI configuration register.\r | |
415 | \r | |
416 | **/\r | |
417 | UINT8\r | |
418 | EFIAPI\r | |
419 | PciBitFieldAndThenOr8 (\r | |
420 | IN UINTN Address,\r | |
421 | IN UINTN StartBit,\r | |
422 | IN UINTN EndBit,\r | |
423 | IN UINT8 AndData,\r | |
424 | IN UINT8 OrData\r | |
425 | )\r | |
426 | {\r | |
427 | return mRunningOnQ35 ?\r | |
428 | PciExpressBitFieldAndThenOr8 (Address, StartBit, EndBit, AndData, OrData) :\r | |
429 | PciCf8BitFieldAndThenOr8 (Address, StartBit, EndBit, AndData, OrData);\r | |
430 | }\r | |
431 | \r | |
432 | /**\r | |
433 | Reads a 16-bit PCI configuration register.\r | |
434 | \r | |
435 | Reads and returns the 16-bit PCI configuration register specified by Address.\r | |
436 | This function must guarantee that all PCI read and write operations are\r | |
437 | serialized.\r | |
438 | \r | |
439 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
440 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
441 | \r | |
442 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
443 | Register.\r | |
444 | \r | |
445 | @return The read value from the PCI configuration register.\r | |
446 | \r | |
447 | **/\r | |
448 | UINT16\r | |
449 | EFIAPI\r | |
450 | PciRead16 (\r | |
451 | IN UINTN Address\r | |
452 | )\r | |
453 | {\r | |
454 | return mRunningOnQ35 ?\r | |
455 | PciExpressRead16 (Address) :\r | |
456 | PciCf8Read16 (Address);\r | |
457 | }\r | |
458 | \r | |
459 | /**\r | |
460 | Writes a 16-bit PCI configuration register.\r | |
461 | \r | |
462 | Writes the 16-bit PCI configuration register specified by Address with the\r | |
463 | value specified by Value. Value is returned. This function must guarantee\r | |
464 | that all PCI read and write operations are serialized.\r | |
465 | \r | |
466 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
467 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
468 | \r | |
469 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
470 | Register.\r | |
471 | @param Value The value to write.\r | |
472 | \r | |
473 | @return The value written to the PCI configuration register.\r | |
474 | \r | |
475 | **/\r | |
476 | UINT16\r | |
477 | EFIAPI\r | |
478 | PciWrite16 (\r | |
479 | IN UINTN Address,\r | |
480 | IN UINT16 Value\r | |
481 | )\r | |
482 | {\r | |
483 | return mRunningOnQ35 ?\r | |
484 | PciExpressWrite16 (Address, Value) :\r | |
485 | PciCf8Write16 (Address, Value);\r | |
486 | }\r | |
487 | \r | |
488 | /**\r | |
489 | Performs a bitwise OR of a 16-bit PCI configuration register with\r | |
490 | a 16-bit value.\r | |
491 | \r | |
492 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
493 | bitwise OR between the read result and the value specified by\r | |
494 | OrData, and writes the result to the 16-bit PCI configuration register\r | |
495 | specified by Address. The value written to the PCI configuration register is\r | |
496 | returned. This function must guarantee that all PCI read and write operations\r | |
497 | are serialized.\r | |
498 | \r | |
499 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
500 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
501 | \r | |
502 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
503 | Register.\r | |
504 | @param OrData The value to OR with the PCI configuration register.\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 | PciOr16 (\r | |
512 | IN UINTN Address,\r | |
513 | IN UINT16 OrData\r | |
514 | )\r | |
515 | {\r | |
516 | return mRunningOnQ35 ?\r | |
517 | PciExpressOr16 (Address, OrData) :\r | |
518 | PciCf8Or16 (Address, OrData);\r | |
519 | }\r | |
520 | \r | |
521 | /**\r | |
522 | Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit\r | |
523 | value.\r | |
524 | \r | |
525 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
526 | bitwise AND between the read result and the value specified by AndData, and\r | |
527 | writes the result to the 16-bit PCI configuration register specified by\r | |
528 | Address. The value written to the PCI configuration register is returned.\r | |
529 | This function must guarantee that all PCI read and write operations are\r | |
530 | serialized.\r | |
531 | \r | |
532 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
533 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
534 | \r | |
535 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
536 | Register.\r | |
537 | @param AndData The value to AND with the PCI configuration register.\r | |
538 | \r | |
539 | @return The value written back to the PCI configuration register.\r | |
540 | \r | |
541 | **/\r | |
542 | UINT16\r | |
543 | EFIAPI\r | |
544 | PciAnd16 (\r | |
545 | IN UINTN Address,\r | |
546 | IN UINT16 AndData\r | |
547 | )\r | |
548 | {\r | |
549 | return mRunningOnQ35 ?\r | |
550 | PciExpressAnd16 (Address, AndData) :\r | |
551 | PciCf8And16 (Address, AndData);\r | |
552 | }\r | |
553 | \r | |
554 | /**\r | |
555 | Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit\r | |
556 | value, followed a bitwise OR with another 16-bit value.\r | |
557 | \r | |
558 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
559 | bitwise AND between the read result and the value specified by AndData,\r | |
560 | performs a bitwise OR between the result of the AND operation and\r | |
561 | the value specified by OrData, and writes the result to the 16-bit PCI\r | |
562 | configuration register specified by Address. The value written to the PCI\r | |
563 | configuration register is returned. This function must guarantee that all PCI\r | |
564 | read and write operations are serialized.\r | |
565 | \r | |
566 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
567 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
568 | \r | |
569 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
570 | Register.\r | |
571 | @param AndData The value to AND with the PCI configuration register.\r | |
572 | @param OrData The value to OR with the result of the AND operation.\r | |
573 | \r | |
574 | @return The value written back to the PCI configuration register.\r | |
575 | \r | |
576 | **/\r | |
577 | UINT16\r | |
578 | EFIAPI\r | |
579 | PciAndThenOr16 (\r | |
580 | IN UINTN Address,\r | |
581 | IN UINT16 AndData,\r | |
582 | IN UINT16 OrData\r | |
583 | )\r | |
584 | {\r | |
585 | return mRunningOnQ35 ?\r | |
586 | PciExpressAndThenOr16 (Address, AndData, OrData) :\r | |
587 | PciCf8AndThenOr16 (Address, AndData, OrData);\r | |
588 | }\r | |
589 | \r | |
590 | /**\r | |
591 | Reads a bit field of a PCI configuration register.\r | |
592 | \r | |
593 | Reads the bit field in a 16-bit PCI configuration register. The bit field is\r | |
594 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
595 | returned.\r | |
596 | \r | |
597 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
598 | If Address is not aligned on a 16-bit boundary, 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 The PCI configuration register to read.\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 | \r | |
609 | @return The value of the bit field read from the PCI configuration register.\r | |
610 | \r | |
611 | **/\r | |
612 | UINT16\r | |
613 | EFIAPI\r | |
614 | PciBitFieldRead16 (\r | |
615 | IN UINTN Address,\r | |
616 | IN UINTN StartBit,\r | |
617 | IN UINTN EndBit\r | |
618 | )\r | |
619 | {\r | |
620 | return mRunningOnQ35 ?\r | |
621 | PciExpressBitFieldRead16 (Address, StartBit, EndBit) :\r | |
622 | PciCf8BitFieldRead16 (Address, StartBit, EndBit);\r | |
623 | }\r | |
624 | \r | |
625 | /**\r | |
626 | Writes a bit field to a PCI configuration register.\r | |
627 | \r | |
628 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
629 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
630 | destination PCI configuration register are preserved. The new value of the\r | |
631 | 16-bit register is returned.\r | |
632 | \r | |
633 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
634 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
635 | If StartBit is greater than 15, then ASSERT().\r | |
636 | If EndBit is greater than 15, then ASSERT().\r | |
637 | If EndBit is less than StartBit, then ASSERT().\r | |
638 | If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
639 | \r | |
640 | @param Address The PCI configuration register to write.\r | |
641 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
642 | Range 0..15.\r | |
643 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
644 | Range 0..15.\r | |
645 | @param Value The new value of the bit field.\r | |
646 | \r | |
647 | @return The value written back to the PCI configuration register.\r | |
648 | \r | |
649 | **/\r | |
650 | UINT16\r | |
651 | EFIAPI\r | |
652 | PciBitFieldWrite16 (\r | |
653 | IN UINTN Address,\r | |
654 | IN UINTN StartBit,\r | |
655 | IN UINTN EndBit,\r | |
656 | IN UINT16 Value\r | |
657 | )\r | |
658 | {\r | |
659 | return mRunningOnQ35 ?\r | |
660 | PciExpressBitFieldWrite16 (Address, StartBit, EndBit, Value) :\r | |
661 | PciCf8BitFieldWrite16 (Address, StartBit, EndBit, Value);\r | |
662 | }\r | |
663 | \r | |
664 | /**\r | |
665 | Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, and\r | |
666 | writes the result back to the bit field in the 16-bit port.\r | |
667 | \r | |
668 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
669 | bitwise OR between the read result and the value specified by\r | |
670 | OrData, and writes the result to the 16-bit PCI configuration register\r | |
671 | specified by Address. The value written to the PCI configuration register is\r | |
672 | returned. This function must guarantee that all PCI read and write operations\r | |
673 | are serialized. Extra left bits in OrData are stripped.\r | |
674 | \r | |
675 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
676 | If Address is not aligned on a 16-bit boundary, 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 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
681 | \r | |
682 | @param Address The PCI configuration register to write.\r | |
683 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
684 | Range 0..15.\r | |
685 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
686 | Range 0..15.\r | |
687 | @param OrData The value to OR with the PCI configuration register.\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 | PciBitFieldOr16 (\r | |
695 | IN UINTN Address,\r | |
696 | IN UINTN StartBit,\r | |
697 | IN UINTN EndBit,\r | |
698 | IN UINT16 OrData\r | |
699 | )\r | |
700 | {\r | |
701 | return mRunningOnQ35 ?\r | |
702 | PciExpressBitFieldOr16 (Address, StartBit, EndBit, OrData) :\r | |
703 | PciCf8BitFieldOr16 (Address, StartBit, EndBit, OrData);\r | |
704 | }\r | |
705 | \r | |
706 | /**\r | |
707 | Reads a bit field in a 16-bit PCI configuration register, performs a bitwise\r | |
708 | AND, and writes the result back to the bit field in the 16-bit register.\r | |
709 | \r | |
710 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
711 | bitwise AND between the read result and the value specified by AndData, and\r | |
712 | writes the result to the 16-bit PCI configuration register specified by\r | |
713 | Address. The value written to the PCI configuration register is returned.\r | |
714 | This function must guarantee that all PCI read and write operations are\r | |
715 | serialized. Extra left bits in AndData are stripped.\r | |
716 | \r | |
717 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
718 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
719 | If StartBit is greater than 15, then ASSERT().\r | |
720 | If EndBit is greater than 15, then ASSERT().\r | |
721 | If EndBit is less than StartBit, then ASSERT().\r | |
722 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
723 | \r | |
724 | @param Address The PCI configuration register to write.\r | |
725 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
726 | Range 0..15.\r | |
727 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
728 | Range 0..15.\r | |
729 | @param AndData The value to AND with the PCI configuration register.\r | |
730 | \r | |
731 | @return The value written back to the PCI configuration register.\r | |
732 | \r | |
733 | **/\r | |
734 | UINT16\r | |
735 | EFIAPI\r | |
736 | PciBitFieldAnd16 (\r | |
737 | IN UINTN Address,\r | |
738 | IN UINTN StartBit,\r | |
739 | IN UINTN EndBit,\r | |
740 | IN UINT16 AndData\r | |
741 | )\r | |
742 | {\r | |
743 | return mRunningOnQ35 ?\r | |
744 | PciExpressBitFieldAnd16 (Address, StartBit, EndBit, AndData) :\r | |
745 | PciCf8BitFieldAnd16 (Address, StartBit, EndBit, AndData);\r | |
746 | }\r | |
747 | \r | |
748 | /**\r | |
749 | Reads a bit field in a 16-bit port, performs a bitwise AND followed by a\r | |
750 | bitwise OR, and writes the result back to the bit field in the\r | |
751 | 16-bit port.\r | |
752 | \r | |
753 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
754 | bitwise AND followed by a bitwise OR between the read result and\r | |
755 | the value specified by AndData, and writes the result to the 16-bit PCI\r | |
756 | configuration register specified by Address. The value written to the PCI\r | |
757 | configuration register is returned. This function must guarantee that all PCI\r | |
758 | read and write operations are serialized. Extra left bits in both AndData and\r | |
759 | OrData are stripped.\r | |
760 | \r | |
761 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
762 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
763 | If StartBit is greater than 15, then ASSERT().\r | |
764 | If EndBit is greater than 15, then ASSERT().\r | |
765 | If EndBit is less than StartBit, then ASSERT().\r | |
766 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
767 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
768 | \r | |
769 | @param Address The PCI configuration register to write.\r | |
770 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
771 | Range 0..15.\r | |
772 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
773 | Range 0..15.\r | |
774 | @param AndData The value to AND with the PCI configuration register.\r | |
775 | @param OrData The value to OR with the result of the AND operation.\r | |
776 | \r | |
777 | @return The value written back to the PCI configuration register.\r | |
778 | \r | |
779 | **/\r | |
780 | UINT16\r | |
781 | EFIAPI\r | |
782 | PciBitFieldAndThenOr16 (\r | |
783 | IN UINTN Address,\r | |
784 | IN UINTN StartBit,\r | |
785 | IN UINTN EndBit,\r | |
786 | IN UINT16 AndData,\r | |
787 | IN UINT16 OrData\r | |
788 | )\r | |
789 | {\r | |
790 | return mRunningOnQ35 ?\r | |
791 | PciExpressBitFieldAndThenOr16 (Address, StartBit, EndBit, AndData, OrData) :\r | |
792 | PciCf8BitFieldAndThenOr16 (Address, StartBit, EndBit, AndData, OrData);\r | |
793 | }\r | |
794 | \r | |
795 | /**\r | |
796 | Reads a 32-bit PCI configuration register.\r | |
797 | \r | |
798 | Reads and returns the 32-bit PCI configuration register specified by Address.\r | |
799 | This function must guarantee that all PCI read and write operations are\r | |
800 | serialized.\r | |
801 | \r | |
802 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
803 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
804 | \r | |
805 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
806 | Register.\r | |
807 | \r | |
808 | @return The read value from the PCI configuration register.\r | |
809 | \r | |
810 | **/\r | |
811 | UINT32\r | |
812 | EFIAPI\r | |
813 | PciRead32 (\r | |
814 | IN UINTN Address\r | |
815 | )\r | |
816 | {\r | |
817 | return mRunningOnQ35 ?\r | |
818 | PciExpressRead32 (Address) :\r | |
819 | PciCf8Read32 (Address);\r | |
820 | }\r | |
821 | \r | |
822 | /**\r | |
823 | Writes a 32-bit PCI configuration register.\r | |
824 | \r | |
825 | Writes the 32-bit PCI configuration register specified by Address with the\r | |
826 | value specified by Value. Value is returned. This function must guarantee\r | |
827 | that all PCI read and write operations are serialized.\r | |
828 | \r | |
829 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
830 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
831 | \r | |
832 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
833 | Register.\r | |
834 | @param Value The value to write.\r | |
835 | \r | |
836 | @return The value written to the PCI configuration register.\r | |
837 | \r | |
838 | **/\r | |
839 | UINT32\r | |
840 | EFIAPI\r | |
841 | PciWrite32 (\r | |
842 | IN UINTN Address,\r | |
843 | IN UINT32 Value\r | |
844 | )\r | |
845 | {\r | |
846 | return mRunningOnQ35 ?\r | |
847 | PciExpressWrite32 (Address, Value) :\r | |
848 | PciCf8Write32 (Address, Value);\r | |
849 | }\r | |
850 | \r | |
851 | /**\r | |
852 | Performs a bitwise OR of a 32-bit PCI configuration register with\r | |
853 | a 32-bit value.\r | |
854 | \r | |
855 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
856 | bitwise OR between the read result and the value specified by\r | |
857 | OrData, and writes the result to the 32-bit PCI configuration register\r | |
858 | specified by Address. The value written to the PCI configuration register is\r | |
859 | returned. This function must guarantee that all PCI read and write operations\r | |
860 | are serialized.\r | |
861 | \r | |
862 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
863 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
864 | \r | |
865 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
866 | Register.\r | |
867 | @param OrData The value to OR with the PCI configuration register.\r | |
868 | \r | |
869 | @return The value written back to the PCI configuration register.\r | |
870 | \r | |
871 | **/\r | |
872 | UINT32\r | |
873 | EFIAPI\r | |
874 | PciOr32 (\r | |
875 | IN UINTN Address,\r | |
876 | IN UINT32 OrData\r | |
877 | )\r | |
878 | {\r | |
879 | return mRunningOnQ35 ?\r | |
880 | PciExpressOr32 (Address, OrData) :\r | |
881 | PciCf8Or32 (Address, OrData);\r | |
882 | }\r | |
883 | \r | |
884 | /**\r | |
885 | Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit\r | |
886 | value.\r | |
887 | \r | |
888 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
889 | bitwise AND between the read result and the value specified by AndData, and\r | |
890 | writes the result to the 32-bit PCI configuration register specified by\r | |
891 | Address. The value written to the PCI configuration register is returned.\r | |
892 | This function must guarantee that all PCI read and write operations are\r | |
893 | serialized.\r | |
894 | \r | |
895 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
896 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
897 | \r | |
898 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
899 | Register.\r | |
900 | @param AndData The value to AND with the PCI configuration register.\r | |
901 | \r | |
902 | @return The value written back to the PCI configuration register.\r | |
903 | \r | |
904 | **/\r | |
905 | UINT32\r | |
906 | EFIAPI\r | |
907 | PciAnd32 (\r | |
908 | IN UINTN Address,\r | |
909 | IN UINT32 AndData\r | |
910 | )\r | |
911 | {\r | |
912 | return mRunningOnQ35 ?\r | |
913 | PciExpressAnd32 (Address, AndData) :\r | |
914 | PciCf8And32 (Address, AndData);\r | |
915 | }\r | |
916 | \r | |
917 | /**\r | |
918 | Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit\r | |
919 | value, followed a bitwise OR with another 32-bit value.\r | |
920 | \r | |
921 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
922 | bitwise AND between the read result and the value specified by AndData,\r | |
923 | performs a bitwise OR between the result of the AND operation and\r | |
924 | the value specified by OrData, and writes the result to the 32-bit PCI\r | |
925 | configuration register specified by Address. The value written to the PCI\r | |
926 | configuration register is returned. This function must guarantee that all PCI\r | |
927 | read and write operations are serialized.\r | |
928 | \r | |
929 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
930 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
931 | \r | |
932 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
933 | Register.\r | |
934 | @param AndData The value to AND with the PCI configuration register.\r | |
935 | @param OrData The value to OR with the result of the AND operation.\r | |
936 | \r | |
937 | @return The value written back to the PCI configuration register.\r | |
938 | \r | |
939 | **/\r | |
940 | UINT32\r | |
941 | EFIAPI\r | |
942 | PciAndThenOr32 (\r | |
943 | IN UINTN Address,\r | |
944 | IN UINT32 AndData,\r | |
945 | IN UINT32 OrData\r | |
946 | )\r | |
947 | {\r | |
948 | return mRunningOnQ35 ?\r | |
949 | PciExpressAndThenOr32 (Address, AndData, OrData) :\r | |
950 | PciCf8AndThenOr32 (Address, AndData, OrData);\r | |
951 | }\r | |
952 | \r | |
953 | /**\r | |
954 | Reads a bit field of a PCI configuration register.\r | |
955 | \r | |
956 | Reads the bit field in a 32-bit PCI configuration register. The bit field is\r | |
957 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
958 | returned.\r | |
959 | \r | |
960 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
961 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
962 | If StartBit is greater than 31, then ASSERT().\r | |
963 | If EndBit is greater than 31, then ASSERT().\r | |
964 | If EndBit is less than StartBit, then ASSERT().\r | |
965 | \r | |
966 | @param Address The PCI configuration register to read.\r | |
967 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
968 | Range 0..31.\r | |
969 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
970 | Range 0..31.\r | |
971 | \r | |
972 | @return The value of the bit field read from the PCI configuration register.\r | |
973 | \r | |
974 | **/\r | |
975 | UINT32\r | |
976 | EFIAPI\r | |
977 | PciBitFieldRead32 (\r | |
978 | IN UINTN Address,\r | |
979 | IN UINTN StartBit,\r | |
980 | IN UINTN EndBit\r | |
981 | )\r | |
982 | {\r | |
983 | return mRunningOnQ35 ?\r | |
984 | PciExpressBitFieldRead32 (Address, StartBit, EndBit) :\r | |
985 | PciCf8BitFieldRead32 (Address, StartBit, EndBit);\r | |
986 | }\r | |
987 | \r | |
988 | /**\r | |
989 | Writes a bit field to a PCI configuration register.\r | |
990 | \r | |
991 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
992 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
993 | destination PCI configuration register are preserved. The new value of the\r | |
994 | 32-bit register is returned.\r | |
995 | \r | |
996 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
997 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
998 | If StartBit is greater than 31, then ASSERT().\r | |
999 | If EndBit is greater than 31, then ASSERT().\r | |
1000 | If EndBit is less than StartBit, then ASSERT().\r | |
1001 | If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1002 | \r | |
1003 | @param Address The PCI configuration register to write.\r | |
1004 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1005 | Range 0..31.\r | |
1006 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1007 | Range 0..31.\r | |
1008 | @param Value The new value of the bit field.\r | |
1009 | \r | |
1010 | @return The value written back to the PCI configuration register.\r | |
1011 | \r | |
1012 | **/\r | |
1013 | UINT32\r | |
1014 | EFIAPI\r | |
1015 | PciBitFieldWrite32 (\r | |
1016 | IN UINTN Address,\r | |
1017 | IN UINTN StartBit,\r | |
1018 | IN UINTN EndBit,\r | |
1019 | IN UINT32 Value\r | |
1020 | )\r | |
1021 | {\r | |
1022 | return mRunningOnQ35 ?\r | |
1023 | PciExpressBitFieldWrite32 (Address, StartBit, EndBit, Value) :\r | |
1024 | PciCf8BitFieldWrite32 (Address, StartBit, EndBit, Value);\r | |
1025 | }\r | |
1026 | \r | |
1027 | /**\r | |
1028 | Reads a bit field in a 32-bit PCI configuration, performs a bitwise OR, and\r | |
1029 | writes the result back to the bit field in the 32-bit port.\r | |
1030 | \r | |
1031 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
1032 | bitwise OR between the read result and the value specified by\r | |
1033 | OrData, and writes the result to the 32-bit PCI configuration register\r | |
1034 | specified by Address. The value written to the PCI configuration register is\r | |
1035 | returned. This function must guarantee that all PCI read and write operations\r | |
1036 | are serialized. Extra left bits in OrData are stripped.\r | |
1037 | \r | |
1038 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1039 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
1040 | If StartBit is greater than 31, then ASSERT().\r | |
1041 | If EndBit is greater than 31, then ASSERT().\r | |
1042 | If EndBit is less than StartBit, then ASSERT().\r | |
1043 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1044 | \r | |
1045 | @param Address The PCI configuration register to write.\r | |
1046 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1047 | Range 0..31.\r | |
1048 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1049 | Range 0..31.\r | |
1050 | @param OrData The value to OR with the PCI configuration register.\r | |
1051 | \r | |
1052 | @return The value written back to the PCI configuration register.\r | |
1053 | \r | |
1054 | **/\r | |
1055 | UINT32\r | |
1056 | EFIAPI\r | |
1057 | PciBitFieldOr32 (\r | |
1058 | IN UINTN Address,\r | |
1059 | IN UINTN StartBit,\r | |
1060 | IN UINTN EndBit,\r | |
1061 | IN UINT32 OrData\r | |
1062 | )\r | |
1063 | {\r | |
1064 | return mRunningOnQ35 ?\r | |
1065 | PciExpressBitFieldOr32 (Address, StartBit, EndBit, OrData) :\r | |
1066 | PciCf8BitFieldOr32 (Address, StartBit, EndBit, OrData);\r | |
1067 | }\r | |
1068 | \r | |
1069 | /**\r | |
1070 | Reads a bit field in a 32-bit PCI configuration register, performs a bitwise\r | |
1071 | AND, and writes the result back to the bit field in the 32-bit register.\r | |
1072 | \r | |
1073 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
1074 | bitwise AND between the read result and the value specified by AndData, and\r | |
1075 | writes the result to the 32-bit PCI configuration register specified by\r | |
1076 | Address. The value written to the PCI configuration register is returned.\r | |
1077 | This function must guarantee that all PCI read and write operations are\r | |
1078 | serialized. Extra left bits in AndData are stripped.\r | |
1079 | \r | |
1080 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1081 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
1082 | If StartBit is greater than 31, then ASSERT().\r | |
1083 | If EndBit is greater than 31, then ASSERT().\r | |
1084 | If EndBit is less than StartBit, then ASSERT().\r | |
1085 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1086 | \r | |
1087 | @param Address The PCI configuration register to write.\r | |
1088 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1089 | Range 0..31.\r | |
1090 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1091 | Range 0..31.\r | |
1092 | @param AndData The value to AND with the PCI configuration register.\r | |
1093 | \r | |
1094 | @return The value written back to the PCI configuration register.\r | |
1095 | \r | |
1096 | **/\r | |
1097 | UINT32\r | |
1098 | EFIAPI\r | |
1099 | PciBitFieldAnd32 (\r | |
1100 | IN UINTN Address,\r | |
1101 | IN UINTN StartBit,\r | |
1102 | IN UINTN EndBit,\r | |
1103 | IN UINT32 AndData\r | |
1104 | )\r | |
1105 | {\r | |
1106 | return mRunningOnQ35 ?\r | |
1107 | PciExpressBitFieldAnd32 (Address, StartBit, EndBit, AndData) :\r | |
1108 | PciCf8BitFieldAnd32 (Address, StartBit, EndBit, AndData);\r | |
1109 | }\r | |
1110 | \r | |
1111 | /**\r | |
1112 | Reads a bit field in a 32-bit port, performs a bitwise AND followed by a\r | |
1113 | bitwise OR, and writes the result back to the bit field in the\r | |
1114 | 32-bit port.\r | |
1115 | \r | |
1116 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
1117 | bitwise AND followed by a bitwise OR between the read result and\r | |
1118 | the value specified by AndData, and writes the result to the 32-bit PCI\r | |
1119 | configuration register specified by Address. The value written to the PCI\r | |
1120 | configuration register is returned. This function must guarantee that all PCI\r | |
1121 | read and write operations are serialized. Extra left bits in both AndData and\r | |
1122 | OrData are stripped.\r | |
1123 | \r | |
1124 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1125 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
1126 | If StartBit is greater than 31, then ASSERT().\r | |
1127 | If EndBit is greater than 31, then ASSERT().\r | |
1128 | If EndBit is less than StartBit, then ASSERT().\r | |
1129 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1130 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1131 | \r | |
1132 | @param Address The PCI configuration register to write.\r | |
1133 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1134 | Range 0..31.\r | |
1135 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1136 | Range 0..31.\r | |
1137 | @param AndData The value to AND with the PCI configuration register.\r | |
1138 | @param OrData The value to OR with the result of the AND operation.\r | |
1139 | \r | |
1140 | @return The value written back to the PCI configuration register.\r | |
1141 | \r | |
1142 | **/\r | |
1143 | UINT32\r | |
1144 | EFIAPI\r | |
1145 | PciBitFieldAndThenOr32 (\r | |
1146 | IN UINTN Address,\r | |
1147 | IN UINTN StartBit,\r | |
1148 | IN UINTN EndBit,\r | |
1149 | IN UINT32 AndData,\r | |
1150 | IN UINT32 OrData\r | |
1151 | )\r | |
1152 | {\r | |
1153 | return mRunningOnQ35 ?\r | |
1154 | PciExpressBitFieldAndThenOr32 (Address, StartBit, EndBit, AndData, OrData) :\r | |
1155 | PciCf8BitFieldAndThenOr32 (Address, StartBit, EndBit, AndData, OrData);\r | |
1156 | }\r | |
1157 | \r | |
1158 | /**\r | |
1159 | Reads a range of PCI configuration registers into a caller supplied buffer.\r | |
1160 | \r | |
1161 | Reads the range of PCI configuration registers specified by StartAddress and\r | |
1162 | Size into the buffer specified by Buffer. This function only allows the PCI\r | |
1163 | configuration registers from a single PCI function to be read. Size is\r | |
1164 | returned. When possible 32-bit PCI configuration read cycles are used to read\r | |
1165 | from StartAdress to StartAddress + Size. Due to alignment restrictions, 8-bit\r | |
1166 | and 16-bit PCI configuration read cycles may be used at the beginning and the\r | |
1167 | end of the range.\r | |
1168 | \r | |
1169 | If StartAddress > 0x0FFFFFFF, then ASSERT().\r | |
1170 | If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().\r | |
1171 | If Size > 0 and Buffer is NULL, then ASSERT().\r | |
1172 | \r | |
1173 | @param StartAddress The starting address that encodes the PCI Bus, Device,\r | |
1174 | Function and Register.\r | |
1175 | @param Size The size in bytes of the transfer.\r | |
1176 | @param Buffer The pointer to a buffer receiving the data read.\r | |
1177 | \r | |
1178 | @return Size\r | |
1179 | \r | |
1180 | **/\r | |
1181 | UINTN\r | |
1182 | EFIAPI\r | |
1183 | PciReadBuffer (\r | |
1184 | IN UINTN StartAddress,\r | |
1185 | IN UINTN Size,\r | |
1186 | OUT VOID *Buffer\r | |
1187 | )\r | |
1188 | {\r | |
1189 | return mRunningOnQ35 ?\r | |
1190 | PciExpressReadBuffer (StartAddress, Size, Buffer) :\r | |
1191 | PciCf8ReadBuffer (StartAddress, Size, Buffer);\r | |
1192 | }\r | |
1193 | \r | |
1194 | /**\r | |
1195 | Copies the data in a caller supplied buffer to a specified range of PCI\r | |
1196 | configuration space.\r | |
1197 | \r | |
1198 | Writes the range of PCI configuration registers specified by StartAddress and\r | |
1199 | Size from the buffer specified by Buffer. This function only allows the PCI\r | |
1200 | configuration registers from a single PCI function to be written. Size is\r | |
1201 | returned. When possible 32-bit PCI configuration write cycles are used to\r | |
1202 | write from StartAdress to StartAddress + Size. Due to alignment restrictions,\r | |
1203 | 8-bit and 16-bit PCI configuration write cycles may be used at the beginning\r | |
1204 | and the end of the range.\r | |
1205 | \r | |
1206 | If StartAddress > 0x0FFFFFFF, then ASSERT().\r | |
1207 | If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().\r | |
1208 | If Size > 0 and Buffer is NULL, then ASSERT().\r | |
1209 | \r | |
1210 | @param StartAddress The starting address that encodes the PCI Bus, Device,\r | |
1211 | Function and Register.\r | |
1212 | @param Size The size in bytes of the transfer.\r | |
1213 | @param Buffer The pointer to a buffer containing the data to write.\r | |
1214 | \r | |
1215 | @return Size written to StartAddress.\r | |
1216 | \r | |
1217 | **/\r | |
1218 | UINTN\r | |
1219 | EFIAPI\r | |
1220 | PciWriteBuffer (\r | |
1221 | IN UINTN StartAddress,\r | |
1222 | IN UINTN Size,\r | |
1223 | IN VOID *Buffer\r | |
1224 | )\r | |
1225 | {\r | |
1226 | return mRunningOnQ35 ?\r | |
1227 | PciExpressWriteBuffer (StartAddress, Size, Buffer) :\r | |
1228 | PciCf8WriteBuffer (StartAddress, Size, Buffer);\r | |
1229 | }\r |