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1 | /** @file\r |
2 | Functions in this library instance make use of MMIO functions in IoLib to\r | |
3 | access memory mapped PCI configuration space.\r | |
4 | \r | |
5 | All assertions for I/O operations are handled in MMIO functions in the IoLib\r | |
6 | Library.\r | |
7 | \r | |
8 | Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.\r | |
9 | Portions copyright (c) 2016, American Megatrends, Inc. All rights reserved.\r | |
10 | This program and the accompanying materials\r | |
11 | are licensed and made available under the terms and conditions of the BSD License\r | |
12 | which accompanies this distribution. The full text of the license may be found at\r | |
13 | http://opensource.org/licenses/bsd-license.php.\r | |
14 | \r | |
15 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
16 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
17 | \r | |
18 | **/\r | |
19 | \r | |
20 | #include <PiDxe.h>\r | |
21 | \r | |
22 | #include <Library/BaseLib.h>\r | |
23 | #include <Library/PciExpressLib.h>\r | |
24 | #include <Library/IoLib.h>\r | |
25 | #include <Library/DebugLib.h>\r | |
26 | #include <Library/PcdLib.h>\r | |
27 | \r | |
28 | ///\r | |
29 | /// Module global that contains the base physical address of the PCI Express MMIO range.\r | |
30 | ///\r | |
31 | UINTN mSmmPciExpressLibPciExpressBaseAddress = 0;\r | |
32 | \r | |
33 | /**\r | |
34 | The constructor function caches the PCI Express Base Address\r | |
35 | \r | |
36 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
37 | @param SystemTable A pointer to the EFI System Table.\r | |
38 | \r | |
39 | @retval EFI_SUCCESS The constructor completed successfully.\r | |
40 | **/\r | |
41 | EFI_STATUS\r | |
42 | EFIAPI\r | |
43 | SmmPciExpressLibConstructor (\r | |
44 | IN EFI_HANDLE ImageHandle,\r | |
45 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
46 | )\r | |
47 | {\r | |
48 | //\r | |
49 | // Cache the physical address of the PCI Express MMIO range into a module global variable\r | |
50 | //\r | |
51 | mSmmPciExpressLibPciExpressBaseAddress = (UINTN) PcdGet64 (PcdPciExpressBaseAddress);\r | |
52 | \r | |
53 | return EFI_SUCCESS;\r | |
54 | }\r | |
55 | \r | |
56 | /**\r | |
57 | Assert the validity of a PCI address. A valid PCI address should contain 1's\r | |
58 | only in the low 28 bits.\r | |
59 | \r | |
60 | @param A The address to validate.\r | |
61 | \r | |
62 | **/\r | |
63 | #define ASSERT_INVALID_PCI_ADDRESS(A) \\r | |
64 | ASSERT (((A) & ~0xfffffff) == 0)\r | |
65 | \r | |
66 | /**\r | |
67 | Registers a PCI device so PCI configuration registers may be accessed after\r | |
68 | SetVirtualAddressMap().\r | |
69 | \r | |
70 | Registers the PCI device specified by Address so all the PCI configuration\r | |
71 | registers associated with that PCI device may be accessed after SetVirtualAddressMap()\r | |
72 | is called.\r | |
73 | \r | |
74 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
75 | \r | |
76 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
77 | Register.\r | |
78 | \r | |
79 | @retval RETURN_SUCCESS The PCI device was registered for runtime access.\r | |
80 | @retval RETURN_UNSUPPORTED An attempt was made to call this function\r | |
81 | after ExitBootServices().\r | |
82 | @retval RETURN_UNSUPPORTED The resources required to access the PCI device\r | |
83 | at runtime could not be mapped.\r | |
84 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources available to\r | |
85 | complete the registration.\r | |
86 | \r | |
87 | **/\r | |
88 | RETURN_STATUS\r | |
89 | EFIAPI\r | |
90 | PciExpressRegisterForRuntimeAccess (\r | |
91 | IN UINTN Address\r | |
92 | )\r | |
93 | {\r | |
94 | ASSERT_INVALID_PCI_ADDRESS (Address);\r | |
95 | return RETURN_UNSUPPORTED;\r | |
96 | }\r | |
97 | \r | |
98 | /**\r | |
99 | Gets MMIO address that can be used to access PCI Express location defined by Address.\r | |
100 | \r | |
101 | This internal functions converts PCI Express address to a CPU MMIO address by adding\r | |
102 | PCI Express Base Address stored in a global variable mSmmPciExpressLibPciExpressBaseAddress.\r | |
103 | mSmmPciExpressLibPciExpressBaseAddress is initialized in the library constructor from PCD entry\r | |
104 | PcdPciExpressBaseAddress.\r | |
105 | \r | |
106 | @param Address The address that encodes the PCI Bus, Device, Function and Register.\r | |
107 | @return MMIO address corresponding to Address.\r | |
108 | \r | |
109 | **/\r | |
110 | UINTN\r | |
111 | GetPciExpressAddress (\r | |
112 | IN UINTN Address\r | |
113 | )\r | |
114 | {\r | |
115 | //\r | |
116 | // Make sure Address is valid\r | |
117 | //\r | |
118 | ASSERT_INVALID_PCI_ADDRESS (Address);\r | |
119 | return mSmmPciExpressLibPciExpressBaseAddress + Address;\r | |
120 | }\r | |
121 | \r | |
122 | /**\r | |
123 | Reads an 8-bit PCI configuration register.\r | |
124 | \r | |
125 | Reads and returns the 8-bit PCI configuration register specified by Address.\r | |
126 | This function must guarantee that all PCI read and write operations are\r | |
127 | serialized.\r | |
128 | \r | |
129 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
130 | \r | |
131 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
132 | Register.\r | |
133 | \r | |
134 | @return The read value from the PCI configuration register.\r | |
135 | \r | |
136 | **/\r | |
137 | UINT8\r | |
138 | EFIAPI\r | |
139 | PciExpressRead8 (\r | |
140 | IN UINTN Address\r | |
141 | )\r | |
142 | {\r | |
143 | return MmioRead8 (GetPciExpressAddress (Address));\r | |
144 | }\r | |
145 | \r | |
146 | /**\r | |
147 | Writes an 8-bit PCI configuration register.\r | |
148 | \r | |
149 | Writes the 8-bit PCI configuration register specified by Address with the\r | |
150 | value specified by Value. Value is returned. This function must guarantee\r | |
151 | that all PCI read and write operations are serialized.\r | |
152 | \r | |
153 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
154 | \r | |
155 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
156 | Register.\r | |
157 | @param Value The value to write.\r | |
158 | \r | |
159 | @return The value written to the PCI configuration register.\r | |
160 | \r | |
161 | **/\r | |
162 | UINT8\r | |
163 | EFIAPI\r | |
164 | PciExpressWrite8 (\r | |
165 | IN UINTN Address,\r | |
166 | IN UINT8 Value\r | |
167 | )\r | |
168 | {\r | |
169 | return MmioWrite8 (GetPciExpressAddress (Address), Value);\r | |
170 | }\r | |
171 | \r | |
172 | /**\r | |
173 | Performs a bitwise OR of an 8-bit PCI configuration register with\r | |
174 | an 8-bit value.\r | |
175 | \r | |
176 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
177 | bitwise OR between the read result and the value specified by\r | |
178 | OrData, and writes the result to the 8-bit PCI configuration register\r | |
179 | specified by Address. The value written to the PCI configuration register is\r | |
180 | returned. This function must guarantee that all PCI read and write operations\r | |
181 | are serialized.\r | |
182 | \r | |
183 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
184 | \r | |
185 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
186 | Register.\r | |
187 | @param OrData The value to OR with the PCI configuration register.\r | |
188 | \r | |
189 | @return The value written back to the PCI configuration register.\r | |
190 | \r | |
191 | **/\r | |
192 | UINT8\r | |
193 | EFIAPI\r | |
194 | PciExpressOr8 (\r | |
195 | IN UINTN Address,\r | |
196 | IN UINT8 OrData\r | |
197 | )\r | |
198 | {\r | |
199 | return MmioOr8 (GetPciExpressAddress (Address), OrData);\r | |
200 | }\r | |
201 | \r | |
202 | /**\r | |
203 | Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit\r | |
204 | value.\r | |
205 | \r | |
206 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
207 | bitwise AND between the read result and the value specified by AndData, and\r | |
208 | writes the result to the 8-bit PCI configuration register specified by\r | |
209 | Address. The value written to the PCI configuration register is returned.\r | |
210 | This function must guarantee that all PCI read and write operations are\r | |
211 | serialized.\r | |
212 | \r | |
213 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
214 | \r | |
215 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
216 | Register.\r | |
217 | @param AndData The value to AND with the PCI configuration register.\r | |
218 | \r | |
219 | @return The value written back to the PCI configuration register.\r | |
220 | \r | |
221 | **/\r | |
222 | UINT8\r | |
223 | EFIAPI\r | |
224 | PciExpressAnd8 (\r | |
225 | IN UINTN Address,\r | |
226 | IN UINT8 AndData\r | |
227 | )\r | |
228 | {\r | |
229 | return MmioAnd8 (GetPciExpressAddress (Address), AndData);\r | |
230 | }\r | |
231 | \r | |
232 | /**\r | |
233 | Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit\r | |
234 | value, followed a bitwise OR with another 8-bit value.\r | |
235 | \r | |
236 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
237 | bitwise AND between the read result and the value specified by AndData,\r | |
238 | performs a bitwise OR between the result of the AND operation and\r | |
239 | the value specified by OrData, and writes the result to the 8-bit PCI\r | |
240 | configuration register specified by Address. The value written to the PCI\r | |
241 | configuration register is returned. This function must guarantee that all PCI\r | |
242 | read and write operations are serialized.\r | |
243 | \r | |
244 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
245 | \r | |
246 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
247 | Register.\r | |
248 | @param AndData The value to AND with the PCI configuration register.\r | |
249 | @param OrData The value to OR with the result of the AND operation.\r | |
250 | \r | |
251 | @return The value written back to the PCI configuration register.\r | |
252 | \r | |
253 | **/\r | |
254 | UINT8\r | |
255 | EFIAPI\r | |
256 | PciExpressAndThenOr8 (\r | |
257 | IN UINTN Address,\r | |
258 | IN UINT8 AndData,\r | |
259 | IN UINT8 OrData\r | |
260 | )\r | |
261 | {\r | |
262 | return MmioAndThenOr8 (\r | |
263 | GetPciExpressAddress (Address),\r | |
264 | AndData,\r | |
265 | OrData\r | |
266 | );\r | |
267 | }\r | |
268 | \r | |
269 | /**\r | |
270 | Reads a bit field of a PCI configuration register.\r | |
271 | \r | |
272 | Reads the bit field in an 8-bit PCI configuration register. The bit field is\r | |
273 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
274 | returned.\r | |
275 | \r | |
276 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
277 | If StartBit is greater than 7, then ASSERT().\r | |
278 | If EndBit is greater than 7, then ASSERT().\r | |
279 | If EndBit is less than StartBit, then ASSERT().\r | |
280 | \r | |
281 | @param Address The PCI configuration register to read.\r | |
282 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
283 | Range 0..7.\r | |
284 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
285 | Range 0..7.\r | |
286 | \r | |
287 | @return The value of the bit field read from the PCI configuration register.\r | |
288 | \r | |
289 | **/\r | |
290 | UINT8\r | |
291 | EFIAPI\r | |
292 | PciExpressBitFieldRead8 (\r | |
293 | IN UINTN Address,\r | |
294 | IN UINTN StartBit,\r | |
295 | IN UINTN EndBit\r | |
296 | )\r | |
297 | {\r | |
298 | return MmioBitFieldRead8 (\r | |
299 | GetPciExpressAddress (Address),\r | |
300 | StartBit,\r | |
301 | EndBit\r | |
302 | );\r | |
303 | }\r | |
304 | \r | |
305 | /**\r | |
306 | Writes a bit field to a PCI configuration register.\r | |
307 | \r | |
308 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
309 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
310 | destination PCI configuration register are preserved. The new value of the\r | |
311 | 8-bit register is returned.\r | |
312 | \r | |
313 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
314 | If StartBit is greater than 7, then ASSERT().\r | |
315 | If EndBit is greater than 7, then ASSERT().\r | |
316 | If EndBit is less than StartBit, then ASSERT().\r | |
317 | If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
318 | \r | |
319 | @param Address The PCI configuration register to write.\r | |
320 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
321 | Range 0..7.\r | |
322 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
323 | Range 0..7.\r | |
324 | @param Value The new value of the bit field.\r | |
325 | \r | |
326 | @return The value written back to the PCI configuration register.\r | |
327 | \r | |
328 | **/\r | |
329 | UINT8\r | |
330 | EFIAPI\r | |
331 | PciExpressBitFieldWrite8 (\r | |
332 | IN UINTN Address,\r | |
333 | IN UINTN StartBit,\r | |
334 | IN UINTN EndBit,\r | |
335 | IN UINT8 Value\r | |
336 | )\r | |
337 | {\r | |
338 | return MmioBitFieldWrite8 (\r | |
339 | GetPciExpressAddress (Address),\r | |
340 | StartBit,\r | |
341 | EndBit,\r | |
342 | Value\r | |
343 | );\r | |
344 | }\r | |
345 | \r | |
346 | /**\r | |
347 | Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR, and\r | |
348 | writes the result back to the bit field in the 8-bit port.\r | |
349 | \r | |
350 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
351 | bitwise OR between the read result and the value specified by\r | |
352 | OrData, and writes the result to the 8-bit PCI configuration register\r | |
353 | specified by Address. The value written to the PCI configuration register is\r | |
354 | returned. This function must guarantee that all PCI read and write operations\r | |
355 | are serialized. Extra left bits in OrData are stripped.\r | |
356 | \r | |
357 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
358 | If StartBit is greater than 7, then ASSERT().\r | |
359 | If EndBit is greater than 7, then ASSERT().\r | |
360 | If EndBit is less than StartBit, then ASSERT().\r | |
361 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
362 | \r | |
363 | @param Address The PCI configuration register to write.\r | |
364 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
365 | Range 0..7.\r | |
366 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
367 | Range 0..7.\r | |
368 | @param OrData The value to OR with the PCI configuration register.\r | |
369 | \r | |
370 | @return The value written back to the PCI configuration register.\r | |
371 | \r | |
372 | **/\r | |
373 | UINT8\r | |
374 | EFIAPI\r | |
375 | PciExpressBitFieldOr8 (\r | |
376 | IN UINTN Address,\r | |
377 | IN UINTN StartBit,\r | |
378 | IN UINTN EndBit,\r | |
379 | IN UINT8 OrData\r | |
380 | )\r | |
381 | {\r | |
382 | return MmioBitFieldOr8 (\r | |
383 | GetPciExpressAddress (Address),\r | |
384 | StartBit,\r | |
385 | EndBit,\r | |
386 | OrData\r | |
387 | );\r | |
388 | }\r | |
389 | \r | |
390 | /**\r | |
391 | Reads a bit field in an 8-bit PCI configuration register, performs a bitwise\r | |
392 | AND, and writes the result back to the bit field in the 8-bit register.\r | |
393 | \r | |
394 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
395 | bitwise AND between the read result and the value specified by AndData, and\r | |
396 | writes the result to the 8-bit PCI configuration register specified by\r | |
397 | Address. The value written to the PCI configuration register is returned.\r | |
398 | This function must guarantee that all PCI read and write operations are\r | |
399 | serialized. Extra left bits in AndData are stripped.\r | |
400 | \r | |
401 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
402 | If StartBit is greater than 7, then ASSERT().\r | |
403 | If EndBit is greater than 7, then ASSERT().\r | |
404 | If EndBit is less than StartBit, then ASSERT().\r | |
405 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
406 | \r | |
407 | @param Address The PCI configuration register to write.\r | |
408 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
409 | Range 0..7.\r | |
410 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
411 | Range 0..7.\r | |
412 | @param AndData The value to AND with the PCI configuration register.\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 | PciExpressBitFieldAnd8 (\r | |
420 | IN UINTN Address,\r | |
421 | IN UINTN StartBit,\r | |
422 | IN UINTN EndBit,\r | |
423 | IN UINT8 AndData\r | |
424 | )\r | |
425 | {\r | |
426 | return MmioBitFieldAnd8 (\r | |
427 | GetPciExpressAddress (Address),\r | |
428 | StartBit,\r | |
429 | EndBit,\r | |
430 | AndData\r | |
431 | );\r | |
432 | }\r | |
433 | \r | |
434 | /**\r | |
435 | Reads a bit field in an 8-bit port, performs a bitwise AND followed by a\r | |
436 | bitwise OR, and writes the result back to the bit field in the\r | |
437 | 8-bit port.\r | |
438 | \r | |
439 | Reads the 8-bit PCI configuration register specified by Address, performs a\r | |
440 | bitwise AND followed by a bitwise OR between the read result and\r | |
441 | the value specified by AndData, and writes the result to the 8-bit PCI\r | |
442 | configuration register specified by Address. The value written to the PCI\r | |
443 | configuration register is returned. This function must guarantee that all PCI\r | |
444 | read and write operations are serialized. Extra left bits in both AndData and\r | |
445 | OrData are stripped.\r | |
446 | \r | |
447 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
448 | If StartBit is greater than 7, then ASSERT().\r | |
449 | If EndBit is greater than 7, then ASSERT().\r | |
450 | If EndBit is less than StartBit, then ASSERT().\r | |
451 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
452 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
453 | \r | |
454 | @param Address The PCI configuration register to write.\r | |
455 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
456 | Range 0..7.\r | |
457 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
458 | Range 0..7.\r | |
459 | @param AndData The value to AND with the PCI configuration register.\r | |
460 | @param OrData The value to OR with the result of the AND operation.\r | |
461 | \r | |
462 | @return The value written back to the PCI configuration register.\r | |
463 | \r | |
464 | **/\r | |
465 | UINT8\r | |
466 | EFIAPI\r | |
467 | PciExpressBitFieldAndThenOr8 (\r | |
468 | IN UINTN Address,\r | |
469 | IN UINTN StartBit,\r | |
470 | IN UINTN EndBit,\r | |
471 | IN UINT8 AndData,\r | |
472 | IN UINT8 OrData\r | |
473 | )\r | |
474 | {\r | |
475 | return MmioBitFieldAndThenOr8 (\r | |
476 | GetPciExpressAddress (Address),\r | |
477 | StartBit,\r | |
478 | EndBit,\r | |
479 | AndData,\r | |
480 | OrData\r | |
481 | );\r | |
482 | }\r | |
483 | \r | |
484 | /**\r | |
485 | Reads a 16-bit PCI configuration register.\r | |
486 | \r | |
487 | Reads and returns the 16-bit PCI configuration register specified by Address.\r | |
488 | This function must guarantee that all PCI read and write operations are\r | |
489 | serialized.\r | |
490 | \r | |
491 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
492 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
493 | \r | |
494 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
495 | Register.\r | |
496 | \r | |
497 | @return The read value from the PCI configuration register.\r | |
498 | \r | |
499 | **/\r | |
500 | UINT16\r | |
501 | EFIAPI\r | |
502 | PciExpressRead16 (\r | |
503 | IN UINTN Address\r | |
504 | )\r | |
505 | {\r | |
506 | return MmioRead16 (GetPciExpressAddress (Address));\r | |
507 | }\r | |
508 | \r | |
509 | /**\r | |
510 | Writes a 16-bit PCI configuration register.\r | |
511 | \r | |
512 | Writes the 16-bit PCI configuration register specified by Address with the\r | |
513 | value specified by Value. Value is returned. This function must guarantee\r | |
514 | that all PCI read and write operations are serialized.\r | |
515 | \r | |
516 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
517 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
518 | \r | |
519 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
520 | Register.\r | |
521 | @param Value The value to write.\r | |
522 | \r | |
523 | @return The value written to the PCI configuration register.\r | |
524 | \r | |
525 | **/\r | |
526 | UINT16\r | |
527 | EFIAPI\r | |
528 | PciExpressWrite16 (\r | |
529 | IN UINTN Address,\r | |
530 | IN UINT16 Value\r | |
531 | )\r | |
532 | {\r | |
533 | return MmioWrite16 (GetPciExpressAddress (Address), Value);\r | |
534 | }\r | |
535 | \r | |
536 | /**\r | |
537 | Performs a bitwise OR of a 16-bit PCI configuration register with\r | |
538 | a 16-bit value.\r | |
539 | \r | |
540 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
541 | bitwise OR between the read result and the value specified by\r | |
542 | OrData, and writes the result to the 16-bit PCI configuration register\r | |
543 | specified by Address. The value written to the PCI configuration register is\r | |
544 | returned. This function must guarantee that all PCI read and write operations\r | |
545 | are serialized.\r | |
546 | \r | |
547 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
548 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
549 | \r | |
550 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
551 | Register.\r | |
552 | @param OrData The value to OR with the PCI configuration register.\r | |
553 | \r | |
554 | @return The value written back to the PCI configuration register.\r | |
555 | \r | |
556 | **/\r | |
557 | UINT16\r | |
558 | EFIAPI\r | |
559 | PciExpressOr16 (\r | |
560 | IN UINTN Address,\r | |
561 | IN UINT16 OrData\r | |
562 | )\r | |
563 | {\r | |
564 | return MmioOr16 (GetPciExpressAddress (Address), OrData);\r | |
565 | }\r | |
566 | \r | |
567 | /**\r | |
568 | Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit\r | |
569 | value.\r | |
570 | \r | |
571 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
572 | bitwise AND between the read result and the value specified by AndData, and\r | |
573 | writes the result to the 16-bit PCI configuration register specified by\r | |
574 | Address. The value written to the PCI configuration register is returned.\r | |
575 | This function must guarantee that all PCI read and write operations are\r | |
576 | serialized.\r | |
577 | \r | |
578 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
579 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
580 | \r | |
581 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
582 | Register.\r | |
583 | @param AndData The value to AND with the PCI configuration register.\r | |
584 | \r | |
585 | @return The value written back to the PCI configuration register.\r | |
586 | \r | |
587 | **/\r | |
588 | UINT16\r | |
589 | EFIAPI\r | |
590 | PciExpressAnd16 (\r | |
591 | IN UINTN Address,\r | |
592 | IN UINT16 AndData\r | |
593 | )\r | |
594 | {\r | |
595 | return MmioAnd16 (GetPciExpressAddress (Address), AndData);\r | |
596 | }\r | |
597 | \r | |
598 | /**\r | |
599 | Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit\r | |
600 | value, followed a bitwise OR with another 16-bit value.\r | |
601 | \r | |
602 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
603 | bitwise AND between the read result and the value specified by AndData,\r | |
604 | performs a bitwise OR between the result of the AND operation and\r | |
605 | the value specified by OrData, and writes the result to the 16-bit PCI\r | |
606 | configuration register specified by Address. The value written to the PCI\r | |
607 | configuration register is returned. This function must guarantee that all PCI\r | |
608 | read and write operations are serialized.\r | |
609 | \r | |
610 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
611 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
612 | \r | |
613 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
614 | Register.\r | |
615 | @param AndData The value to AND with the PCI configuration register.\r | |
616 | @param OrData The value to OR with the result of the AND operation.\r | |
617 | \r | |
618 | @return The value written back to the PCI configuration register.\r | |
619 | \r | |
620 | **/\r | |
621 | UINT16\r | |
622 | EFIAPI\r | |
623 | PciExpressAndThenOr16 (\r | |
624 | IN UINTN Address,\r | |
625 | IN UINT16 AndData,\r | |
626 | IN UINT16 OrData\r | |
627 | )\r | |
628 | {\r | |
629 | return MmioAndThenOr16 (\r | |
630 | GetPciExpressAddress (Address),\r | |
631 | AndData,\r | |
632 | OrData\r | |
633 | );\r | |
634 | }\r | |
635 | \r | |
636 | /**\r | |
637 | Reads a bit field of a PCI configuration register.\r | |
638 | \r | |
639 | Reads the bit field in a 16-bit PCI configuration register. The bit field is\r | |
640 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
641 | returned.\r | |
642 | \r | |
643 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
644 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
645 | If StartBit is greater than 15, then ASSERT().\r | |
646 | If EndBit is greater than 15, then ASSERT().\r | |
647 | If EndBit is less than StartBit, then ASSERT().\r | |
648 | \r | |
649 | @param Address The PCI configuration register to read.\r | |
650 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
651 | Range 0..15.\r | |
652 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
653 | Range 0..15.\r | |
654 | \r | |
655 | @return The value of the bit field read from the PCI configuration register.\r | |
656 | \r | |
657 | **/\r | |
658 | UINT16\r | |
659 | EFIAPI\r | |
660 | PciExpressBitFieldRead16 (\r | |
661 | IN UINTN Address,\r | |
662 | IN UINTN StartBit,\r | |
663 | IN UINTN EndBit\r | |
664 | )\r | |
665 | {\r | |
666 | return MmioBitFieldRead16 (\r | |
667 | GetPciExpressAddress (Address),\r | |
668 | StartBit,\r | |
669 | EndBit\r | |
670 | );\r | |
671 | }\r | |
672 | \r | |
673 | /**\r | |
674 | Writes a bit field to a PCI configuration register.\r | |
675 | \r | |
676 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
677 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
678 | destination PCI configuration register are preserved. The new value of the\r | |
679 | 16-bit register is returned.\r | |
680 | \r | |
681 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
682 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
683 | If StartBit is greater than 15, then ASSERT().\r | |
684 | If EndBit is greater than 15, then ASSERT().\r | |
685 | If EndBit is less than StartBit, then ASSERT().\r | |
686 | If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
687 | \r | |
688 | @param Address The PCI configuration register to write.\r | |
689 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
690 | Range 0..15.\r | |
691 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
692 | Range 0..15.\r | |
693 | @param Value The new value of the bit field.\r | |
694 | \r | |
695 | @return The value written back to the PCI configuration register.\r | |
696 | \r | |
697 | **/\r | |
698 | UINT16\r | |
699 | EFIAPI\r | |
700 | PciExpressBitFieldWrite16 (\r | |
701 | IN UINTN Address,\r | |
702 | IN UINTN StartBit,\r | |
703 | IN UINTN EndBit,\r | |
704 | IN UINT16 Value\r | |
705 | )\r | |
706 | {\r | |
707 | return MmioBitFieldWrite16 (\r | |
708 | GetPciExpressAddress (Address),\r | |
709 | StartBit,\r | |
710 | EndBit,\r | |
711 | Value\r | |
712 | );\r | |
713 | }\r | |
714 | \r | |
715 | /**\r | |
716 | Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, and\r | |
717 | writes the result back to the bit field in the 16-bit port.\r | |
718 | \r | |
719 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
720 | bitwise OR between the read result and the value specified by\r | |
721 | OrData, and writes the result to the 16-bit PCI configuration register\r | |
722 | specified by Address. The value written to the PCI configuration register is\r | |
723 | returned. This function must guarantee that all PCI read and write operations\r | |
724 | are serialized. Extra left bits in OrData are stripped.\r | |
725 | \r | |
726 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
727 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
728 | If StartBit is greater than 15, then ASSERT().\r | |
729 | If EndBit is greater than 15, then ASSERT().\r | |
730 | If EndBit is less than StartBit, then ASSERT().\r | |
731 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
732 | \r | |
733 | @param Address The PCI configuration register to write.\r | |
734 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
735 | Range 0..15.\r | |
736 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
737 | Range 0..15.\r | |
738 | @param OrData The value to OR with the PCI configuration register.\r | |
739 | \r | |
740 | @return The value written back to the PCI configuration register.\r | |
741 | \r | |
742 | **/\r | |
743 | UINT16\r | |
744 | EFIAPI\r | |
745 | PciExpressBitFieldOr16 (\r | |
746 | IN UINTN Address,\r | |
747 | IN UINTN StartBit,\r | |
748 | IN UINTN EndBit,\r | |
749 | IN UINT16 OrData\r | |
750 | )\r | |
751 | {\r | |
752 | return MmioBitFieldOr16 (\r | |
753 | GetPciExpressAddress (Address),\r | |
754 | StartBit,\r | |
755 | EndBit,\r | |
756 | OrData\r | |
757 | );\r | |
758 | }\r | |
759 | \r | |
760 | /**\r | |
761 | Reads a bit field in a 16-bit PCI configuration register, performs a bitwise\r | |
762 | AND, and writes the result back to the bit field in the 16-bit register.\r | |
763 | \r | |
764 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
765 | bitwise AND between the read result and the value specified by AndData, and\r | |
766 | writes the result to the 16-bit PCI configuration register specified by\r | |
767 | Address. The value written to the PCI configuration register is returned.\r | |
768 | This function must guarantee that all PCI read and write operations are\r | |
769 | serialized. Extra left bits in AndData are stripped.\r | |
770 | \r | |
771 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
772 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
773 | If StartBit is greater than 15, then ASSERT().\r | |
774 | If EndBit is greater than 15, then ASSERT().\r | |
775 | If EndBit is less than StartBit, then ASSERT().\r | |
776 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
777 | \r | |
778 | @param Address The PCI configuration register to write.\r | |
779 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
780 | Range 0..15.\r | |
781 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
782 | Range 0..15.\r | |
783 | @param AndData The value to AND with the PCI configuration register.\r | |
784 | \r | |
785 | @return The value written back to the PCI configuration register.\r | |
786 | \r | |
787 | **/\r | |
788 | UINT16\r | |
789 | EFIAPI\r | |
790 | PciExpressBitFieldAnd16 (\r | |
791 | IN UINTN Address,\r | |
792 | IN UINTN StartBit,\r | |
793 | IN UINTN EndBit,\r | |
794 | IN UINT16 AndData\r | |
795 | )\r | |
796 | {\r | |
797 | return MmioBitFieldAnd16 (\r | |
798 | GetPciExpressAddress (Address),\r | |
799 | StartBit,\r | |
800 | EndBit,\r | |
801 | AndData\r | |
802 | );\r | |
803 | }\r | |
804 | \r | |
805 | /**\r | |
806 | Reads a bit field in a 16-bit port, performs a bitwise AND followed by a\r | |
807 | bitwise OR, and writes the result back to the bit field in the\r | |
808 | 16-bit port.\r | |
809 | \r | |
810 | Reads the 16-bit PCI configuration register specified by Address, performs a\r | |
811 | bitwise AND followed by a bitwise OR between the read result and\r | |
812 | the value specified by AndData, and writes the result to the 16-bit PCI\r | |
813 | configuration register specified by Address. The value written to the PCI\r | |
814 | configuration register is returned. This function must guarantee that all PCI\r | |
815 | read and write operations are serialized. Extra left bits in both AndData and\r | |
816 | OrData are stripped.\r | |
817 | \r | |
818 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
819 | If Address is not aligned on a 16-bit boundary, then ASSERT().\r | |
820 | If StartBit is greater than 15, then ASSERT().\r | |
821 | If EndBit is greater than 15, then ASSERT().\r | |
822 | If EndBit is less than StartBit, then ASSERT().\r | |
823 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
824 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
825 | \r | |
826 | @param Address The PCI configuration register to write.\r | |
827 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
828 | Range 0..15.\r | |
829 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
830 | Range 0..15.\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 | UINT16\r | |
838 | EFIAPI\r | |
839 | PciExpressBitFieldAndThenOr16 (\r | |
840 | IN UINTN Address,\r | |
841 | IN UINTN StartBit,\r | |
842 | IN UINTN EndBit,\r | |
843 | IN UINT16 AndData,\r | |
844 | IN UINT16 OrData\r | |
845 | )\r | |
846 | {\r | |
847 | return MmioBitFieldAndThenOr16 (\r | |
848 | GetPciExpressAddress (Address),\r | |
849 | StartBit,\r | |
850 | EndBit,\r | |
851 | AndData,\r | |
852 | OrData\r | |
853 | );\r | |
854 | }\r | |
855 | \r | |
856 | /**\r | |
857 | Reads a 32-bit PCI configuration register.\r | |
858 | \r | |
859 | Reads and returns the 32-bit PCI configuration register specified by Address.\r | |
860 | This function must guarantee that all PCI read and write operations are\r | |
861 | serialized.\r | |
862 | \r | |
863 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
864 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
865 | \r | |
866 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
867 | Register.\r | |
868 | \r | |
869 | @return The read value from the PCI configuration register.\r | |
870 | \r | |
871 | **/\r | |
872 | UINT32\r | |
873 | EFIAPI\r | |
874 | PciExpressRead32 (\r | |
875 | IN UINTN Address\r | |
876 | )\r | |
877 | {\r | |
878 | return MmioRead32 (GetPciExpressAddress (Address));\r | |
879 | }\r | |
880 | \r | |
881 | /**\r | |
882 | Writes a 32-bit PCI configuration register.\r | |
883 | \r | |
884 | Writes the 32-bit PCI configuration register specified by Address with the\r | |
885 | value specified by Value. Value is returned. This function must guarantee\r | |
886 | that all PCI read and write operations are serialized.\r | |
887 | \r | |
888 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
889 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
890 | \r | |
891 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
892 | Register.\r | |
893 | @param Value The value to write.\r | |
894 | \r | |
895 | @return The value written to the PCI configuration register.\r | |
896 | \r | |
897 | **/\r | |
898 | UINT32\r | |
899 | EFIAPI\r | |
900 | PciExpressWrite32 (\r | |
901 | IN UINTN Address,\r | |
902 | IN UINT32 Value\r | |
903 | )\r | |
904 | {\r | |
905 | return MmioWrite32 (GetPciExpressAddress (Address), Value);\r | |
906 | }\r | |
907 | \r | |
908 | /**\r | |
909 | Performs a bitwise OR of a 32-bit PCI configuration register with\r | |
910 | a 32-bit value.\r | |
911 | \r | |
912 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
913 | bitwise OR between the read result and the value specified by\r | |
914 | OrData, and writes the result to the 32-bit PCI configuration register\r | |
915 | specified by Address. The value written to the PCI configuration register is\r | |
916 | returned. This function must guarantee that all PCI read and write operations\r | |
917 | are serialized.\r | |
918 | \r | |
919 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
920 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
921 | \r | |
922 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
923 | Register.\r | |
924 | @param OrData The value to OR with the PCI configuration register.\r | |
925 | \r | |
926 | @return The value written back to the PCI configuration register.\r | |
927 | \r | |
928 | **/\r | |
929 | UINT32\r | |
930 | EFIAPI\r | |
931 | PciExpressOr32 (\r | |
932 | IN UINTN Address,\r | |
933 | IN UINT32 OrData\r | |
934 | )\r | |
935 | {\r | |
936 | return MmioOr32 (GetPciExpressAddress (Address), OrData);\r | |
937 | }\r | |
938 | \r | |
939 | /**\r | |
940 | Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit\r | |
941 | value.\r | |
942 | \r | |
943 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
944 | bitwise AND between the read result and the value specified by AndData, and\r | |
945 | writes the result to the 32-bit PCI configuration register specified by\r | |
946 | Address. The value written to the PCI configuration register is returned.\r | |
947 | This function must guarantee that all PCI read and write operations are\r | |
948 | serialized.\r | |
949 | \r | |
950 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
951 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
952 | \r | |
953 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
954 | Register.\r | |
955 | @param AndData The value to AND with the PCI configuration register.\r | |
956 | \r | |
957 | @return The value written back to the PCI configuration register.\r | |
958 | \r | |
959 | **/\r | |
960 | UINT32\r | |
961 | EFIAPI\r | |
962 | PciExpressAnd32 (\r | |
963 | IN UINTN Address,\r | |
964 | IN UINT32 AndData\r | |
965 | )\r | |
966 | {\r | |
967 | return MmioAnd32 (GetPciExpressAddress (Address), AndData);\r | |
968 | }\r | |
969 | \r | |
970 | /**\r | |
971 | Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit\r | |
972 | value, followed a bitwise OR with another 32-bit value.\r | |
973 | \r | |
974 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
975 | bitwise AND between the read result and the value specified by AndData,\r | |
976 | performs a bitwise OR between the result of the AND operation and\r | |
977 | the value specified by OrData, and writes the result to the 32-bit PCI\r | |
978 | configuration register specified by Address. The value written to the PCI\r | |
979 | configuration register is returned. This function must guarantee that all PCI\r | |
980 | read and write operations are serialized.\r | |
981 | \r | |
982 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
983 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
984 | \r | |
985 | @param Address The address that encodes the PCI Bus, Device, Function and\r | |
986 | Register.\r | |
987 | @param AndData The value to AND with the PCI configuration register.\r | |
988 | @param OrData The value to OR with the result of the AND operation.\r | |
989 | \r | |
990 | @return The value written back to the PCI configuration register.\r | |
991 | \r | |
992 | **/\r | |
993 | UINT32\r | |
994 | EFIAPI\r | |
995 | PciExpressAndThenOr32 (\r | |
996 | IN UINTN Address,\r | |
997 | IN UINT32 AndData,\r | |
998 | IN UINT32 OrData\r | |
999 | )\r | |
1000 | {\r | |
1001 | return MmioAndThenOr32 (\r | |
1002 | GetPciExpressAddress (Address),\r | |
1003 | AndData,\r | |
1004 | OrData\r | |
1005 | );\r | |
1006 | }\r | |
1007 | \r | |
1008 | /**\r | |
1009 | Reads a bit field of a PCI configuration register.\r | |
1010 | \r | |
1011 | Reads the bit field in a 32-bit PCI configuration register. The bit field is\r | |
1012 | specified by the StartBit and the EndBit. The value of the bit field is\r | |
1013 | returned.\r | |
1014 | \r | |
1015 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1016 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
1017 | If StartBit is greater than 31, then ASSERT().\r | |
1018 | If EndBit is greater than 31, then ASSERT().\r | |
1019 | If EndBit is less than StartBit, then ASSERT().\r | |
1020 | \r | |
1021 | @param Address The PCI configuration register to read.\r | |
1022 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1023 | Range 0..31.\r | |
1024 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1025 | Range 0..31.\r | |
1026 | \r | |
1027 | @return The value of the bit field read from the PCI configuration register.\r | |
1028 | \r | |
1029 | **/\r | |
1030 | UINT32\r | |
1031 | EFIAPI\r | |
1032 | PciExpressBitFieldRead32 (\r | |
1033 | IN UINTN Address,\r | |
1034 | IN UINTN StartBit,\r | |
1035 | IN UINTN EndBit\r | |
1036 | )\r | |
1037 | {\r | |
1038 | return MmioBitFieldRead32 (\r | |
1039 | GetPciExpressAddress (Address),\r | |
1040 | StartBit,\r | |
1041 | EndBit\r | |
1042 | );\r | |
1043 | }\r | |
1044 | \r | |
1045 | /**\r | |
1046 | Writes a bit field to a PCI configuration register.\r | |
1047 | \r | |
1048 | Writes Value to the bit field of the PCI configuration register. The bit\r | |
1049 | field is specified by the StartBit and the EndBit. All other bits in the\r | |
1050 | destination PCI configuration register are preserved. The new value of the\r | |
1051 | 32-bit register is returned.\r | |
1052 | \r | |
1053 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1054 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
1055 | If StartBit is greater than 31, then ASSERT().\r | |
1056 | If EndBit is greater than 31, then ASSERT().\r | |
1057 | If EndBit is less than StartBit, then ASSERT().\r | |
1058 | If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1059 | \r | |
1060 | @param Address The PCI configuration register to write.\r | |
1061 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1062 | Range 0..31.\r | |
1063 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1064 | Range 0..31.\r | |
1065 | @param Value The new value of the bit field.\r | |
1066 | \r | |
1067 | @return The value written back to the PCI configuration register.\r | |
1068 | \r | |
1069 | **/\r | |
1070 | UINT32\r | |
1071 | EFIAPI\r | |
1072 | PciExpressBitFieldWrite32 (\r | |
1073 | IN UINTN Address,\r | |
1074 | IN UINTN StartBit,\r | |
1075 | IN UINTN EndBit,\r | |
1076 | IN UINT32 Value\r | |
1077 | )\r | |
1078 | {\r | |
1079 | return MmioBitFieldWrite32 (\r | |
1080 | GetPciExpressAddress (Address),\r | |
1081 | StartBit,\r | |
1082 | EndBit,\r | |
1083 | Value\r | |
1084 | );\r | |
1085 | }\r | |
1086 | \r | |
1087 | /**\r | |
1088 | Reads a bit field in a 32-bit PCI configuration, performs a bitwise OR, and\r | |
1089 | writes the result back to the bit field in the 32-bit port.\r | |
1090 | \r | |
1091 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
1092 | bitwise OR between the read result and the value specified by\r | |
1093 | OrData, and writes the result to the 32-bit PCI configuration register\r | |
1094 | specified by Address. The value written to the PCI configuration register is\r | |
1095 | returned. This function must guarantee that all PCI read and write operations\r | |
1096 | are serialized. Extra left bits in OrData are stripped.\r | |
1097 | \r | |
1098 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1099 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
1100 | If StartBit is greater than 31, then ASSERT().\r | |
1101 | If EndBit is greater than 31, then ASSERT().\r | |
1102 | If EndBit is less than StartBit, then ASSERT().\r | |
1103 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1104 | \r | |
1105 | @param Address The PCI configuration register to write.\r | |
1106 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1107 | Range 0..31.\r | |
1108 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1109 | Range 0..31.\r | |
1110 | @param OrData The value to OR with the PCI configuration register.\r | |
1111 | \r | |
1112 | @return The value written back to the PCI configuration register.\r | |
1113 | \r | |
1114 | **/\r | |
1115 | UINT32\r | |
1116 | EFIAPI\r | |
1117 | PciExpressBitFieldOr32 (\r | |
1118 | IN UINTN Address,\r | |
1119 | IN UINTN StartBit,\r | |
1120 | IN UINTN EndBit,\r | |
1121 | IN UINT32 OrData\r | |
1122 | )\r | |
1123 | {\r | |
1124 | return MmioBitFieldOr32 (\r | |
1125 | GetPciExpressAddress (Address),\r | |
1126 | StartBit,\r | |
1127 | EndBit,\r | |
1128 | OrData\r | |
1129 | );\r | |
1130 | }\r | |
1131 | \r | |
1132 | /**\r | |
1133 | Reads a bit field in a 32-bit PCI configuration register, performs a bitwise\r | |
1134 | AND, and writes the result back to the bit field in the 32-bit register.\r | |
1135 | \r | |
1136 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
1137 | bitwise AND between the read result and the value specified by AndData, and\r | |
1138 | writes the result to the 32-bit PCI configuration register specified by\r | |
1139 | Address. The value written to the PCI configuration register is returned.\r | |
1140 | This function must guarantee that all PCI read and write operations are\r | |
1141 | serialized. Extra left bits in AndData are stripped.\r | |
1142 | \r | |
1143 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1144 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
1145 | If StartBit is greater than 31, then ASSERT().\r | |
1146 | If EndBit is greater than 31, then ASSERT().\r | |
1147 | If EndBit is less than StartBit, then ASSERT().\r | |
1148 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1149 | \r | |
1150 | @param Address The PCI configuration register to write.\r | |
1151 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1152 | Range 0..31.\r | |
1153 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1154 | Range 0..31.\r | |
1155 | @param AndData The value to AND with the PCI configuration register.\r | |
1156 | \r | |
1157 | @return The value written back to the PCI configuration register.\r | |
1158 | \r | |
1159 | **/\r | |
1160 | UINT32\r | |
1161 | EFIAPI\r | |
1162 | PciExpressBitFieldAnd32 (\r | |
1163 | IN UINTN Address,\r | |
1164 | IN UINTN StartBit,\r | |
1165 | IN UINTN EndBit,\r | |
1166 | IN UINT32 AndData\r | |
1167 | )\r | |
1168 | {\r | |
1169 | return MmioBitFieldAnd32 (\r | |
1170 | GetPciExpressAddress (Address),\r | |
1171 | StartBit,\r | |
1172 | EndBit,\r | |
1173 | AndData\r | |
1174 | );\r | |
1175 | }\r | |
1176 | \r | |
1177 | /**\r | |
1178 | Reads a bit field in a 32-bit port, performs a bitwise AND followed by a\r | |
1179 | bitwise OR, and writes the result back to the bit field in the\r | |
1180 | 32-bit port.\r | |
1181 | \r | |
1182 | Reads the 32-bit PCI configuration register specified by Address, performs a\r | |
1183 | bitwise AND followed by a bitwise OR between the read result and\r | |
1184 | the value specified by AndData, and writes the result to the 32-bit PCI\r | |
1185 | configuration register specified by Address. The value written to the PCI\r | |
1186 | configuration register is returned. This function must guarantee that all PCI\r | |
1187 | read and write operations are serialized. Extra left bits in both AndData and\r | |
1188 | OrData are stripped.\r | |
1189 | \r | |
1190 | If Address > 0x0FFFFFFF, then ASSERT().\r | |
1191 | If Address is not aligned on a 32-bit boundary, then ASSERT().\r | |
1192 | If StartBit is greater than 31, then ASSERT().\r | |
1193 | If EndBit is greater than 31, then ASSERT().\r | |
1194 | If EndBit is less than StartBit, then ASSERT().\r | |
1195 | If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1196 | If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r | |
1197 | \r | |
1198 | @param Address The PCI configuration register to write.\r | |
1199 | @param StartBit The ordinal of the least significant bit in the bit field.\r | |
1200 | Range 0..31.\r | |
1201 | @param EndBit The ordinal of the most significant bit in the bit field.\r | |
1202 | Range 0..31.\r | |
1203 | @param AndData The value to AND with the PCI configuration register.\r | |
1204 | @param OrData The value to OR with the result of the AND operation.\r | |
1205 | \r | |
1206 | @return The value written back to the PCI configuration register.\r | |
1207 | \r | |
1208 | **/\r | |
1209 | UINT32\r | |
1210 | EFIAPI\r | |
1211 | PciExpressBitFieldAndThenOr32 (\r | |
1212 | IN UINTN Address,\r | |
1213 | IN UINTN StartBit,\r | |
1214 | IN UINTN EndBit,\r | |
1215 | IN UINT32 AndData,\r | |
1216 | IN UINT32 OrData\r | |
1217 | )\r | |
1218 | {\r | |
1219 | return MmioBitFieldAndThenOr32 (\r | |
1220 | GetPciExpressAddress (Address),\r | |
1221 | StartBit,\r | |
1222 | EndBit,\r | |
1223 | AndData,\r | |
1224 | OrData\r | |
1225 | );\r | |
1226 | }\r | |
1227 | \r | |
1228 | /**\r | |
1229 | Reads a range of PCI configuration registers into a caller supplied buffer.\r | |
1230 | \r | |
1231 | Reads the range of PCI configuration registers specified by StartAddress and\r | |
1232 | Size into the buffer specified by Buffer. This function only allows the PCI\r | |
1233 | configuration registers from a single PCI function to be read. Size is\r | |
1234 | returned. When possible 32-bit PCI configuration read cycles are used to read\r | |
1235 | from StartAdress to StartAddress + Size. Due to alignment restrictions, 8-bit\r | |
1236 | and 16-bit PCI configuration read cycles may be used at the beginning and the\r | |
1237 | end of the range.\r | |
1238 | \r | |
1239 | If StartAddress > 0x0FFFFFFF, then ASSERT().\r | |
1240 | If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().\r | |
1241 | If Size > 0 and Buffer is NULL, then ASSERT().\r | |
1242 | \r | |
1243 | @param StartAddress The starting address that encodes the PCI Bus, Device,\r | |
1244 | Function and Register.\r | |
1245 | @param Size The size in bytes of the transfer.\r | |
1246 | @param Buffer The pointer to a buffer receiving the data read.\r | |
1247 | \r | |
1248 | @return Size read data from StartAddress.\r | |
1249 | \r | |
1250 | **/\r | |
1251 | UINTN\r | |
1252 | EFIAPI\r | |
1253 | PciExpressReadBuffer (\r | |
1254 | IN UINTN StartAddress,\r | |
1255 | IN UINTN Size,\r | |
1256 | OUT VOID *Buffer\r | |
1257 | )\r | |
1258 | {\r | |
1259 | UINTN ReturnValue;\r | |
1260 | \r | |
1261 | //\r | |
1262 | // Make sure Address is valid\r | |
1263 | //\r | |
1264 | ASSERT_INVALID_PCI_ADDRESS (StartAddress);\r | |
1265 | ASSERT (((StartAddress & 0xFFF) + Size) <= 0x1000);\r | |
1266 | \r | |
1267 | if (Size == 0) {\r | |
1268 | return Size;\r | |
1269 | }\r | |
1270 | \r | |
1271 | ASSERT (Buffer != NULL);\r | |
1272 | \r | |
1273 | //\r | |
1274 | // Save Size for return\r | |
1275 | //\r | |
1276 | ReturnValue = Size;\r | |
1277 | \r | |
1278 | if ((StartAddress & 1) != 0) {\r | |
1279 | //\r | |
1280 | // Read a byte if StartAddress is byte aligned\r | |
1281 | //\r | |
1282 | *(volatile UINT8 *)Buffer = PciExpressRead8 (StartAddress);\r | |
1283 | StartAddress += sizeof (UINT8);\r | |
1284 | Size -= sizeof (UINT8);\r | |
1285 | Buffer = (UINT8*)Buffer + 1;\r | |
1286 | }\r | |
1287 | \r | |
1288 | if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {\r | |
1289 | //\r | |
1290 | // Read a word if StartAddress is word aligned\r | |
1291 | //\r | |
1292 | WriteUnaligned16 ((UINT16 *) Buffer, (UINT16) PciExpressRead16 (StartAddress));\r | |
1293 | \r | |
1294 | StartAddress += sizeof (UINT16);\r | |
1295 | Size -= sizeof (UINT16);\r | |
1296 | Buffer = (UINT16*)Buffer + 1;\r | |
1297 | }\r | |
1298 | \r | |
1299 | while (Size >= sizeof (UINT32)) {\r | |
1300 | //\r | |
1301 | // Read as many double words as possible\r | |
1302 | //\r | |
1303 | WriteUnaligned32 ((UINT32 *) Buffer, (UINT32) PciExpressRead32 (StartAddress));\r | |
1304 | \r | |
1305 | StartAddress += sizeof (UINT32);\r | |
1306 | Size -= sizeof (UINT32);\r | |
1307 | Buffer = (UINT32*)Buffer + 1;\r | |
1308 | }\r | |
1309 | \r | |
1310 | if (Size >= sizeof (UINT16)) {\r | |
1311 | //\r | |
1312 | // Read the last remaining word if exist\r | |
1313 | //\r | |
1314 | WriteUnaligned16 ((UINT16 *) Buffer, (UINT16) PciExpressRead16 (StartAddress));\r | |
1315 | StartAddress += sizeof (UINT16);\r | |
1316 | Size -= sizeof (UINT16);\r | |
1317 | Buffer = (UINT16*)Buffer + 1;\r | |
1318 | }\r | |
1319 | \r | |
1320 | if (Size >= sizeof (UINT8)) {\r | |
1321 | //\r | |
1322 | // Read the last remaining byte if exist\r | |
1323 | //\r | |
1324 | *(volatile UINT8 *)Buffer = PciExpressRead8 (StartAddress);\r | |
1325 | }\r | |
1326 | \r | |
1327 | return ReturnValue;\r | |
1328 | }\r | |
1329 | \r | |
1330 | /**\r | |
1331 | Copies the data in a caller supplied buffer to a specified range of PCI\r | |
1332 | configuration space.\r | |
1333 | \r | |
1334 | Writes the range of PCI configuration registers specified by StartAddress and\r | |
1335 | Size from the buffer specified by Buffer. This function only allows the PCI\r | |
1336 | configuration registers from a single PCI function to be written. Size is\r | |
1337 | returned. When possible 32-bit PCI configuration write cycles are used to\r | |
1338 | write from StartAdress to StartAddress + Size. Due to alignment restrictions,\r | |
1339 | 8-bit and 16-bit PCI configuration write cycles may be used at the beginning\r | |
1340 | and the end of the range.\r | |
1341 | \r | |
1342 | If StartAddress > 0x0FFFFFFF, then ASSERT().\r | |
1343 | If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().\r | |
1344 | If Size > 0 and Buffer is NULL, then ASSERT().\r | |
1345 | \r | |
1346 | @param StartAddress The starting address that encodes the PCI Bus, Device,\r | |
1347 | Function and Register.\r | |
1348 | @param Size The size in bytes of the transfer.\r | |
1349 | @param Buffer The pointer to a buffer containing the data to write.\r | |
1350 | \r | |
1351 | @return Size written to StartAddress.\r | |
1352 | \r | |
1353 | **/\r | |
1354 | UINTN\r | |
1355 | EFIAPI\r | |
1356 | PciExpressWriteBuffer (\r | |
1357 | IN UINTN StartAddress,\r | |
1358 | IN UINTN Size,\r | |
1359 | IN VOID *Buffer\r | |
1360 | )\r | |
1361 | {\r | |
1362 | UINTN ReturnValue;\r | |
1363 | \r | |
1364 | //\r | |
1365 | // Make sure Address is valid\r | |
1366 | //\r | |
1367 | ASSERT_INVALID_PCI_ADDRESS (StartAddress);\r | |
1368 | ASSERT (((StartAddress & 0xFFF) + Size) <= 0x1000);\r | |
1369 | \r | |
1370 | \r | |
1371 | if (Size == 0) {\r | |
1372 | return 0;\r | |
1373 | }\r | |
1374 | \r | |
1375 | ASSERT (Buffer != NULL);\r | |
1376 | \r | |
1377 | //\r | |
1378 | // Save Size for return\r | |
1379 | //\r | |
1380 | ReturnValue = Size;\r | |
1381 | \r | |
1382 | if ((StartAddress & 1) != 0) {\r | |
1383 | //\r | |
1384 | // Write a byte if StartAddress is byte aligned\r | |
1385 | //\r | |
1386 | PciExpressWrite8 (StartAddress, *(UINT8*)Buffer);\r | |
1387 | StartAddress += sizeof (UINT8);\r | |
1388 | Size -= sizeof (UINT8);\r | |
1389 | Buffer = (UINT8*)Buffer + 1;\r | |
1390 | }\r | |
1391 | \r | |
1392 | if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {\r | |
1393 | //\r | |
1394 | // Write a word if StartAddress is word aligned\r | |
1395 | //\r | |
1396 | PciExpressWrite16 (StartAddress, ReadUnaligned16 ((UINT16*)Buffer));\r | |
1397 | StartAddress += sizeof (UINT16);\r | |
1398 | Size -= sizeof (UINT16);\r | |
1399 | Buffer = (UINT16*)Buffer + 1;\r | |
1400 | }\r | |
1401 | \r | |
1402 | while (Size >= sizeof (UINT32)) {\r | |
1403 | //\r | |
1404 | // Write as many double words as possible\r | |
1405 | //\r | |
1406 | PciExpressWrite32 (StartAddress, ReadUnaligned32 ((UINT32*)Buffer));\r | |
1407 | StartAddress += sizeof (UINT32);\r | |
1408 | Size -= sizeof (UINT32);\r | |
1409 | Buffer = (UINT32*)Buffer + 1;\r | |
1410 | }\r | |
1411 | \r | |
1412 | if (Size >= sizeof (UINT16)) {\r | |
1413 | //\r | |
1414 | // Write the last remaining word if exist\r | |
1415 | //\r | |
1416 | PciExpressWrite16 (StartAddress, ReadUnaligned16 ((UINT16*)Buffer));\r | |
1417 | StartAddress += sizeof (UINT16);\r | |
1418 | Size -= sizeof (UINT16);\r | |
1419 | Buffer = (UINT16*)Buffer + 1;\r | |
1420 | }\r | |
1421 | \r | |
1422 | if (Size >= sizeof (UINT8)) {\r | |
1423 | //\r | |
1424 | // Write the last remaining byte if exist\r | |
1425 | //\r | |
1426 | PciExpressWrite8 (StartAddress, *(UINT8*)Buffer);\r | |
1427 | }\r | |
1428 | \r | |
1429 | return ReturnValue;\r | |
1430 | }\r |