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878ddf1f | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
5 | are licensed and made available under the terms and conditions of the BSD License \r | |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | PciRomTable.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Option Rom Support for PCI Bus Driver\r | |
19 | \r | |
20 | Revision History\r | |
21 | \r | |
22 | --*/\r | |
23 | \r | |
24 | #include "pcibus.h"\r | |
25 | #include "PciRomTable.h"\r | |
26 | \r | |
27 | typedef struct {\r | |
28 | EFI_HANDLE ImageHandle;\r | |
29 | UINTN Seg;\r | |
30 | UINT8 Bus;\r | |
31 | UINT8 Dev;\r | |
32 | UINT8 Func;\r | |
33 | UINT64 RomAddress;\r | |
34 | UINT64 RomLength;\r | |
35 | } EFI_PCI_ROM_IMAGE_MAPPING;\r | |
36 | \r | |
37 | static UINTN mNumberOfPciRomImages = 0;\r | |
38 | static UINTN mMaxNumberOfPciRomImages = 0;\r | |
39 | static EFI_PCI_ROM_IMAGE_MAPPING *mRomImageTable = NULL;\r | |
40 | \r | |
41 | VOID\r | |
42 | PciRomAddImageMapping (\r | |
43 | IN EFI_HANDLE ImageHandle,\r | |
44 | IN UINTN Seg,\r | |
45 | IN UINT8 Bus,\r | |
46 | IN UINT8 Dev,\r | |
47 | IN UINT8 Func,\r | |
48 | IN UINT64 RomAddress,\r | |
49 | IN UINT64 RomLength\r | |
50 | )\r | |
51 | /*++\r | |
52 | \r | |
53 | Routine Description:\r | |
54 | \r | |
55 | TODO: Add function description\r | |
56 | \r | |
57 | Arguments:\r | |
58 | \r | |
59 | ImageHandle - TODO: add argument description\r | |
60 | Seg - TODO: add argument description\r | |
61 | Bus - TODO: add argument description\r | |
62 | Dev - TODO: add argument description\r | |
63 | Func - TODO: add argument description\r | |
64 | RomAddress - TODO: add argument description\r | |
65 | RomLength - TODO: add argument description\r | |
66 | \r | |
67 | Returns:\r | |
68 | \r | |
69 | TODO: add return values\r | |
70 | \r | |
71 | --*/\r | |
72 | {\r | |
73 | EFI_PCI_ROM_IMAGE_MAPPING *TempMapping;\r | |
74 | \r | |
75 | if (mNumberOfPciRomImages >= mMaxNumberOfPciRomImages) {\r | |
76 | \r | |
77 | mMaxNumberOfPciRomImages += 0x20;\r | |
78 | \r | |
79 | TempMapping = NULL;\r | |
80 | TempMapping = AllocatePool (mMaxNumberOfPciRomImages * sizeof (EFI_PCI_ROM_IMAGE_MAPPING));\r | |
81 | if (TempMapping == NULL) {\r | |
82 | return ;\r | |
83 | }\r | |
84 | \r | |
85 | CopyMem (TempMapping, mRomImageTable, mNumberOfPciRomImages * sizeof (EFI_PCI_ROM_IMAGE_MAPPING));\r | |
86 | \r | |
87 | if (mRomImageTable != NULL) {\r | |
88 | gBS->FreePool (mRomImageTable);\r | |
89 | }\r | |
90 | \r | |
91 | mRomImageTable = TempMapping;\r | |
92 | }\r | |
93 | \r | |
94 | mRomImageTable[mNumberOfPciRomImages].ImageHandle = ImageHandle;\r | |
95 | mRomImageTable[mNumberOfPciRomImages].Seg = Seg;\r | |
96 | mRomImageTable[mNumberOfPciRomImages].Bus = Bus;\r | |
97 | mRomImageTable[mNumberOfPciRomImages].Dev = Dev;\r | |
98 | mRomImageTable[mNumberOfPciRomImages].Func = Func;\r | |
99 | mRomImageTable[mNumberOfPciRomImages].RomAddress = RomAddress;\r | |
100 | mRomImageTable[mNumberOfPciRomImages].RomLength = RomLength;\r | |
101 | mNumberOfPciRomImages++;\r | |
102 | }\r | |
103 | \r | |
104 | VOID\r | |
105 | HexToString (\r | |
106 | CHAR16 *String,\r | |
107 | UINTN Value,\r | |
108 | UINTN Digits\r | |
109 | )\r | |
110 | /*++\r | |
111 | \r | |
112 | Routine Description:\r | |
113 | \r | |
114 | TODO: Add function description\r | |
115 | \r | |
116 | Arguments:\r | |
117 | \r | |
118 | String - TODO: add argument description\r | |
119 | Value - TODO: add argument description\r | |
120 | Digits - TODO: add argument description\r | |
121 | \r | |
122 | Returns:\r | |
123 | \r | |
124 | TODO: add return values\r | |
125 | \r | |
126 | --*/\r | |
127 | {\r | |
128 | for (; Digits > 0; Digits--, String++) {\r | |
129 | *String = (CHAR16) ((Value >> (4 * (Digits - 1))) & 0x0f);\r | |
130 | if (*String > 9) {\r | |
131 | (*String) += ('A' - 10);\r | |
132 | } else {\r | |
133 | (*String) += '0';\r | |
134 | }\r | |
135 | }\r | |
136 | }\r | |
137 | EFI_STATUS\r | |
138 | PciRomLoadEfiDriversFromRomImage (\r | |
139 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
140 | IN EFI_PCI_OPTION_ROM_DESCRIPTOR *PciOptionRomDescriptor\r | |
141 | )\r | |
142 | /*++\r | |
143 | \r | |
144 | Routine Description:\r | |
145 | \r | |
146 | Arguments:\r | |
147 | \r | |
148 | Returns:\r | |
149 | \r | |
150 | --*/\r | |
151 | // TODO: This - add argument and description to function comment\r | |
152 | // TODO: PciOptionRomDescriptor - add argument and description to function comment\r | |
153 | {\r | |
154 | VOID *RomBar;\r | |
155 | UINTN RomSize;\r | |
156 | CHAR16 *FileName;\r | |
157 | EFI_PCI_EXPANSION_ROM_HEADER *EfiRomHeader;\r | |
158 | PCI_DATA_STRUCTURE *Pcir;\r | |
159 | UINTN ImageIndex;\r | |
160 | UINTN RomBarOffset;\r | |
161 | UINT32 ImageSize;\r | |
162 | UINT16 ImageOffset;\r | |
163 | EFI_HANDLE ImageHandle;\r | |
164 | EFI_STATUS Status;\r | |
165 | EFI_STATUS retStatus;\r | |
166 | EFI_DEVICE_PATH_PROTOCOL *FilePath;\r | |
167 | BOOLEAN SkipImage;\r | |
168 | UINT32 DestinationSize;\r | |
169 | UINT32 ScratchSize;\r | |
170 | UINT8 *Scratch;\r | |
171 | VOID *ImageBuffer;\r | |
172 | VOID *DecompressedImageBuffer;\r | |
173 | UINT32 ImageLength;\r | |
174 | EFI_DECOMPRESS_PROTOCOL *Decompress;\r | |
175 | \r | |
176 | RomBar = (VOID *) (UINTN) PciOptionRomDescriptor->RomAddress;\r | |
177 | RomSize = (UINTN) PciOptionRomDescriptor->RomLength;\r | |
178 | FileName = L"PciRom Seg=00000000 Bus=00 Dev=00 Func=00 Image=0000";\r | |
179 | \r | |
180 | HexToString (&FileName[11], PciOptionRomDescriptor->Seg, 8);\r | |
181 | HexToString (&FileName[24], PciOptionRomDescriptor->Bus, 2);\r | |
182 | HexToString (&FileName[31], PciOptionRomDescriptor->Dev, 2);\r | |
183 | HexToString (&FileName[39], PciOptionRomDescriptor->Func, 2);\r | |
184 | \r | |
185 | ImageIndex = 0;\r | |
186 | retStatus = EFI_NOT_FOUND;\r | |
187 | RomBarOffset = (UINTN) RomBar;\r | |
188 | \r | |
189 | do {\r | |
190 | \r | |
191 | EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) (UINTN) RomBarOffset;\r | |
192 | \r | |
193 | if (EfiRomHeader->Signature != 0xaa55) {\r | |
194 | return retStatus;\r | |
195 | }\r | |
196 | \r | |
197 | Pcir = (PCI_DATA_STRUCTURE *) (UINTN) (RomBarOffset + EfiRomHeader->PcirOffset);\r | |
198 | ImageSize = Pcir->ImageLength * 512;\r | |
199 | \r | |
200 | if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&\r | |
201 | (EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) ) {\r | |
202 | \r | |
203 | if ((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||\r | |
204 | (EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) ) {\r | |
205 | \r | |
206 | ImageOffset = EfiRomHeader->EfiImageHeaderOffset;\r | |
207 | ImageSize = EfiRomHeader->InitializationSize * 512;\r | |
208 | \r | |
209 | ImageBuffer = (VOID *) (UINTN) (RomBarOffset + ImageOffset);\r | |
210 | ImageLength = ImageSize - ImageOffset;\r | |
211 | DecompressedImageBuffer = NULL;\r | |
212 | \r | |
213 | //\r | |
214 | // decompress here if needed\r | |
215 | //\r | |
216 | SkipImage = FALSE;\r | |
217 | if (EfiRomHeader->CompressionType > EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {\r | |
218 | SkipImage = TRUE;\r | |
219 | }\r | |
220 | \r | |
221 | if (EfiRomHeader->CompressionType == EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {\r | |
222 | Status = gBS->LocateProtocol (&gEfiDecompressProtocolGuid, NULL, (VOID **) &Decompress);\r | |
223 | if (EFI_ERROR (Status)) {\r | |
224 | SkipImage = TRUE;\r | |
225 | } else {\r | |
226 | SkipImage = TRUE;\r | |
227 | Status = Decompress->GetInfo (\r | |
228 | Decompress,\r | |
229 | ImageBuffer,\r | |
230 | ImageLength,\r | |
231 | &DestinationSize,\r | |
232 | &ScratchSize\r | |
233 | );\r | |
234 | if (!EFI_ERROR (Status)) {\r | |
235 | DecompressedImageBuffer = NULL;\r | |
236 | DecompressedImageBuffer = AllocatePool (DestinationSize);\r | |
237 | if (DecompressedImageBuffer != NULL) {\r | |
238 | Scratch = AllocatePool (ScratchSize);\r | |
239 | if (Scratch != NULL) {\r | |
240 | Status = Decompress->Decompress (\r | |
241 | Decompress,\r | |
242 | ImageBuffer,\r | |
243 | ImageLength,\r | |
244 | DecompressedImageBuffer,\r | |
245 | DestinationSize,\r | |
246 | Scratch,\r | |
247 | ScratchSize\r | |
248 | );\r | |
249 | if (!EFI_ERROR (Status)) {\r | |
250 | ImageBuffer = DecompressedImageBuffer;\r | |
251 | ImageLength = DestinationSize;\r | |
252 | SkipImage = FALSE;\r | |
253 | }\r | |
254 | \r | |
255 | gBS->FreePool (Scratch);\r | |
256 | }\r | |
257 | }\r | |
258 | }\r | |
259 | }\r | |
260 | }\r | |
261 | \r | |
262 | if (!SkipImage) {\r | |
263 | \r | |
264 | //\r | |
265 | // load image and start image\r | |
266 | //\r | |
267 | \r | |
268 | HexToString (&FileName[48], ImageIndex, 4);\r | |
269 | FilePath = FileDevicePath (NULL, FileName);\r | |
270 | \r | |
271 | Status = gBS->LoadImage (\r | |
272 | FALSE,\r | |
273 | This->ImageHandle,\r | |
274 | FilePath,\r | |
275 | ImageBuffer,\r | |
276 | ImageLength,\r | |
277 | &ImageHandle\r | |
278 | );\r | |
279 | if (!EFI_ERROR (Status)) {\r | |
280 | Status = gBS->StartImage (ImageHandle, NULL, NULL);\r | |
281 | if (!EFI_ERROR (Status)) {\r | |
282 | PciRomAddImageMapping (\r | |
283 | ImageHandle,\r | |
284 | PciOptionRomDescriptor->Seg,\r | |
285 | PciOptionRomDescriptor->Bus,\r | |
286 | PciOptionRomDescriptor->Dev,\r | |
287 | PciOptionRomDescriptor->Func,\r | |
288 | PciOptionRomDescriptor->RomAddress,\r | |
289 | PciOptionRomDescriptor->RomLength\r | |
290 | );\r | |
291 | retStatus = Status;\r | |
292 | }\r | |
293 | }\r | |
294 | }\r | |
295 | \r | |
296 | if (DecompressedImageBuffer != NULL) {\r | |
297 | gBS->FreePool (DecompressedImageBuffer);\r | |
298 | }\r | |
299 | \r | |
300 | }\r | |
301 | }\r | |
302 | \r | |
303 | RomBarOffset = RomBarOffset + ImageSize;\r | |
304 | ImageIndex++;\r | |
305 | } while (((Pcir->Indicator & 0x80) == 0x00) && ((RomBarOffset - (UINTN) RomBar) < RomSize));\r | |
306 | \r | |
307 | return retStatus;\r | |
308 | }\r | |
309 | \r | |
310 | EFI_STATUS\r | |
311 | PciRomLoadEfiDriversFromOptionRomTable (\r | |
312 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
313 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo\r | |
314 | )\r | |
315 | /*++\r | |
316 | \r | |
317 | Routine Description:\r | |
318 | \r | |
319 | Arguments:\r | |
320 | \r | |
321 | Returns:\r | |
322 | \r | |
323 | --*/\r | |
324 | // TODO: This - add argument and description to function comment\r | |
325 | // TODO: PciRootBridgeIo - add argument and description to function comment\r | |
326 | // TODO: EFI_NOT_FOUND - add return value to function comment\r | |
327 | {\r | |
328 | EFI_STATUS Status;\r | |
329 | EFI_PCI_OPTION_ROM_TABLE *PciOptionRomTable;\r | |
330 | EFI_PCI_OPTION_ROM_DESCRIPTOR *PciOptionRomDescriptor;\r | |
331 | UINTN Index;\r | |
332 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;\r | |
333 | UINT16 MinBus;\r | |
334 | UINT16 MaxBus;\r | |
335 | \r | |
336 | Status = EfiGetSystemConfigurationTable (&gEfiPciOptionRomTableGuid, (VOID **) &PciOptionRomTable);\r | |
337 | if (EFI_ERROR (Status)) {\r | |
338 | return EFI_NOT_FOUND;\r | |
339 | }\r | |
340 | \r | |
341 | Status = EFI_NOT_FOUND;\r | |
342 | \r | |
343 | for (Index = 0; Index < PciOptionRomTable->PciOptionRomCount; Index++) {\r | |
344 | PciOptionRomDescriptor = &PciOptionRomTable->PciOptionRomDescriptors[Index];\r | |
345 | if (!PciOptionRomDescriptor->DontLoadEfiRom) {\r | |
346 | if (PciOptionRomDescriptor->Seg == PciRootBridgeIo->SegmentNumber) {\r | |
347 | Status = PciRootBridgeIo->Configuration (PciRootBridgeIo, (VOID **) &Descriptors);\r | |
348 | if (EFI_ERROR (Status)) {\r | |
349 | return Status;\r | |
350 | }\r | |
351 | \r | |
352 | PciGetBusRange (&Descriptors, &MinBus, &MaxBus, NULL);\r | |
353 | if ((MinBus <= PciOptionRomDescriptor->Bus) && (PciOptionRomDescriptor->Bus <= MaxBus)) {\r | |
354 | Status = PciRomLoadEfiDriversFromRomImage (This, PciOptionRomDescriptor);\r | |
355 | PciOptionRomDescriptor->DontLoadEfiRom |= 2;\r | |
356 | }\r | |
357 | }\r | |
358 | }\r | |
359 | }\r | |
360 | \r | |
361 | return Status;\r | |
362 | }\r | |
363 | \r | |
364 | EFI_STATUS\r | |
365 | PciRomGetRomResourceFromPciOptionRomTable (\r | |
366 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
367 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,\r | |
368 | PCI_IO_DEVICE *PciIoDevice\r | |
369 | )\r | |
370 | /*++\r | |
371 | \r | |
372 | Routine Description:\r | |
373 | \r | |
374 | Arguments:\r | |
375 | \r | |
376 | Returns:\r | |
377 | \r | |
378 | --*/\r | |
379 | // TODO: This - add argument and description to function comment\r | |
380 | // TODO: PciRootBridgeIo - add argument and description to function comment\r | |
381 | // TODO: PciIoDevice - add argument and description to function comment\r | |
382 | // TODO: EFI_NOT_FOUND - add return value to function comment\r | |
383 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
384 | {\r | |
385 | EFI_STATUS Status;\r | |
386 | EFI_PCI_OPTION_ROM_TABLE *PciOptionRomTable;\r | |
387 | EFI_PCI_OPTION_ROM_DESCRIPTOR *PciOptionRomDescriptor;\r | |
388 | UINTN Index;\r | |
389 | \r | |
390 | Status = EfiGetSystemConfigurationTable (&gEfiPciOptionRomTableGuid, (VOID **) &PciOptionRomTable);\r | |
391 | if (EFI_ERROR (Status)) {\r | |
392 | return EFI_NOT_FOUND;\r | |
393 | }\r | |
394 | \r | |
395 | for (Index = 0; Index < PciOptionRomTable->PciOptionRomCount; Index++) {\r | |
396 | PciOptionRomDescriptor = &PciOptionRomTable->PciOptionRomDescriptors[Index];\r | |
397 | if (PciOptionRomDescriptor->Seg == PciRootBridgeIo->SegmentNumber &&\r | |
398 | PciOptionRomDescriptor->Bus == PciIoDevice->BusNumber &&\r | |
399 | PciOptionRomDescriptor->Dev == PciIoDevice->DeviceNumber &&\r | |
400 | PciOptionRomDescriptor->Func == PciIoDevice->FunctionNumber ) {\r | |
401 | \r | |
402 | PciIoDevice->PciIo.RomImage = (VOID *) (UINTN) PciOptionRomDescriptor->RomAddress;\r | |
403 | PciIoDevice->PciIo.RomSize = (UINTN) PciOptionRomDescriptor->RomLength;\r | |
404 | }\r | |
405 | }\r | |
406 | \r | |
407 | for (Index = 0; Index < mNumberOfPciRomImages; Index++) {\r | |
408 | if (mRomImageTable[Index].Seg == PciRootBridgeIo->SegmentNumber &&\r | |
409 | mRomImageTable[Index].Bus == PciIoDevice->BusNumber &&\r | |
410 | mRomImageTable[Index].Dev == PciIoDevice->DeviceNumber &&\r | |
411 | mRomImageTable[Index].Func == PciIoDevice->FunctionNumber ) {\r | |
412 | \r | |
413 | AddDriver (PciIoDevice, mRomImageTable[Index].ImageHandle);\r | |
414 | }\r | |
415 | }\r | |
416 | \r | |
417 | return EFI_SUCCESS;\r | |
418 | }\r | |
419 | \r | |
420 | EFI_STATUS\r | |
421 | PciRomGetImageMapping (\r | |
422 | PCI_IO_DEVICE *PciIoDevice\r | |
423 | )\r | |
424 | /*++\r | |
425 | \r | |
426 | Routine Description:\r | |
427 | \r | |
428 | Arguments:\r | |
429 | \r | |
430 | Returns:\r | |
431 | \r | |
432 | --*/\r | |
433 | // TODO: PciIoDevice - add argument and description to function comment\r | |
434 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
435 | {\r | |
436 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;\r | |
437 | UINTN Index;\r | |
438 | \r | |
439 | PciRootBridgeIo = PciIoDevice->PciRootBridgeIo;\r | |
440 | \r | |
441 | for (Index = 0; Index < mNumberOfPciRomImages; Index++) {\r | |
442 | if (mRomImageTable[Index].Seg == PciRootBridgeIo->SegmentNumber &&\r | |
443 | mRomImageTable[Index].Bus == PciIoDevice->BusNumber &&\r | |
444 | mRomImageTable[Index].Dev == PciIoDevice->DeviceNumber &&\r | |
445 | mRomImageTable[Index].Func == PciIoDevice->FunctionNumber ) {\r | |
446 | \r | |
447 | if (mRomImageTable[Index].ImageHandle != NULL) {\r | |
448 | AddDriver (PciIoDevice, mRomImageTable[Index].ImageHandle);\r | |
449 | } else {\r | |
450 | PciIoDevice->PciIo.RomImage = (VOID *) (UINTN) mRomImageTable[Index].RomAddress;\r | |
451 | PciIoDevice->PciIo.RomSize = (UINTN) mRomImageTable[Index].RomLength;\r | |
452 | }\r | |
453 | }\r | |
454 | }\r | |
455 | \r | |
456 | return EFI_SUCCESS;\r | |
457 | }\r |