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1 | /** @file\r |
2 | The implementation of PCI incompatible device support libary.\r |
3 | \r |
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4 | Copyright (c) 2006 - 2007, Intel Corporation \r |
5 | All rights reserved. This program and the accompanying materials \r |
6 | are licensed and made available under the terms and conditions of the BSD License \r |
7 | which accompanies this distribution. The full text of the license may be found at \r |
8 | http://opensource.org/licenses/bsd-license.php \r |
9 | \r |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
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12 | \r |
13 | **/\r |
14 | \r |
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15 | #include "IncompatiblePciDeviceList.h"\r |
16 | \r |
17 | /**\r |
18 | Check whether two PCI devices matched\r |
19 | \r |
20 | @param PciDeviceInfo A pointer to EFI_PCI_DEVICE_INFO.\r |
21 | @param Header A pointer to EFI_PCI_DEVICE_INFO.\r |
22 | \r |
23 | @retval returns EFI_SUCCESS if two PCI device matched.\r |
24 | **/\r |
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25 | EFI_STATUS\r |
26 | DeviceCheck (\r |
27 | IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,\r |
28 | IN EFI_PCI_DEVICE_INFO *Header\r |
29 | )\r |
30 | {\r |
31 | //\r |
32 | // See if the Header matches the parameters passed in\r |
33 | //\r |
34 | if (Header->VendorID != DEVICE_ID_NOCARE) {\r |
35 | if (PciDeviceInfo->VendorID != Header->VendorID) {\r |
36 | return EFI_UNSUPPORTED;\r |
37 | }\r |
38 | }\r |
39 | \r |
40 | if (Header->DeviceID != DEVICE_ID_NOCARE) {\r |
41 | if (PciDeviceInfo->DeviceID != Header->DeviceID) {\r |
42 | return EFI_UNSUPPORTED;\r |
43 | }\r |
44 | }\r |
45 | \r |
46 | if (Header->RevisionID != DEVICE_ID_NOCARE) {\r |
47 | if (PciDeviceInfo->RevisionID != Header->RevisionID) {\r |
48 | return EFI_UNSUPPORTED;\r |
49 | }\r |
50 | }\r |
51 | \r |
52 | if (Header->SubsystemVendorID != DEVICE_ID_NOCARE) {\r |
53 | if (PciDeviceInfo->SubsystemVendorID != Header->SubsystemVendorID) {\r |
54 | return EFI_UNSUPPORTED;\r |
55 | }\r |
56 | }\r |
57 | \r |
58 | if (Header->SubsystemID != DEVICE_ID_NOCARE) {\r |
59 | if (PciDeviceInfo->SubsystemID != Header->SubsystemID) {\r |
60 | return EFI_UNSUPPORTED;\r |
61 | }\r |
62 | }\r |
63 | \r |
64 | return EFI_SUCCESS;\r |
65 | }\r |
66 | \r |
67 | \r |
68 | /**\r |
69 | Check the incompatible device list for ACPI resource update and return\r |
70 | the configuration\r |
71 | \r |
72 | This function searches the incompatible device list according to request\r |
73 | information. If the PCI device belongs to the devices list, corresponding\r |
74 | configuration informtion will be returned, in the meantime return EFI_SUCCESS.\r |
75 | \r |
76 | @param PciDeviceInfo A pointer to PCI device information.\r |
77 | @param Configuration Returned information.\r |
78 | \r |
79 | @retval returns EFI_SUCCESS if check incompatible device ok.\r |
80 | Otherwise return EFI_UNSUPPORTED.\r |
81 | **/\r |
82 | RETURN_STATUS\r |
83 | EFIAPI\r |
84 | PciResourceUpdateCheck (\r |
85 | IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,\r |
86 | OUT VOID *Configuration\r |
87 | )\r |
88 | {\r |
89 | UINT64 Tag;\r |
90 | UINT64 *ListPtr;\r |
91 | UINT64 *TempListPtr;\r |
92 | EFI_PCI_DEVICE_INFO *Header;\r |
93 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *AcpiPtr;\r |
94 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *OldAcpiPtr;\r |
95 | EFI_PCI_RESOUCE_DESCRIPTOR *Dsc;\r |
96 | EFI_ACPI_END_TAG_DESCRIPTOR *PtrEnd;\r |
97 | UINTN Index;\r |
98 | \r |
99 | ASSERT (PciDeviceInfo != NULL);\r |
100 | \r |
101 | //\r |
102 | // Initialize the return value to NULL\r |
103 | //\r |
104 | * (VOID **) Configuration = NULL;\r |
105 | \r |
106 | ListPtr = IncompatiblePciDeviceListForResource;\r |
107 | while (*ListPtr != LIST_END_TAG) {\r |
108 | \r |
109 | Tag = *ListPtr;\r |
110 | \r |
111 | switch (Tag) {\r |
112 | case DEVICE_INF_TAG:\r |
113 | Header = (EFI_PCI_DEVICE_INFO *) (ListPtr + 1);\r |
114 | ListPtr = ListPtr + 1 + sizeof (EFI_PCI_DEVICE_INFO) / sizeof (UINT64);\r |
115 | \r |
116 | if (DeviceCheck (PciDeviceInfo, Header) != EFI_SUCCESS) {\r |
117 | continue;\r |
118 | }\r |
119 | \r |
120 | //\r |
121 | // Matched an item, so construct the ACPI descriptor for the resource.\r |
122 | //\r |
123 | //\r |
124 | // Count the resource items so that to allocate space\r |
125 | //\r |
126 | for (Index = 0, TempListPtr = ListPtr; *TempListPtr == DEVICE_RES_TAG; Index++) {\r |
127 | TempListPtr = TempListPtr + 1 + ((sizeof (EFI_PCI_RESOUCE_DESCRIPTOR)) / sizeof (UINT64));\r |
128 | }\r |
129 | //\r |
130 | // If there is at least one type of resource request,\r |
131 | // allocate a acpi resource node\r |
132 | //\r |
133 | if (Index == 0) {\r |
134 | return EFI_ABORTED;\r |
135 | }\r |
136 | \r |
137 | AcpiPtr = AllocateZeroPool (\r |
138 | sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) * Index + sizeof (EFI_ACPI_END_TAG_DESCRIPTOR)\r |
139 | );\r |
140 | \r |
141 | OldAcpiPtr = AcpiPtr;\r |
142 | \r |
143 | //\r |
144 | // Fill the EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR structure\r |
145 | // according to the EFI_PCI_RESOUCE_DESCRIPTOR structure\r |
146 | //\r |
147 | for (; *ListPtr == DEVICE_RES_TAG;) {\r |
148 | \r |
149 | Dsc = (EFI_PCI_RESOUCE_DESCRIPTOR *) (ListPtr + 1);\r |
150 | \r |
151 | AcpiPtr->Desc = ACPI_ADDRESS_SPACE_DESCRIPTOR;\r |
152 | AcpiPtr->Len = sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR);\r |
153 | AcpiPtr->ResType = (UINT8) Dsc->ResType;\r |
154 | AcpiPtr->GenFlag = (UINT8) Dsc->GenFlag;\r |
155 | AcpiPtr->SpecificFlag = (UINT8) Dsc->SpecificFlag;\r |
156 | AcpiPtr->AddrSpaceGranularity = Dsc->AddrSpaceGranularity;;\r |
157 | AcpiPtr->AddrRangeMin = Dsc->AddrRangeMin;\r |
158 | AcpiPtr->AddrRangeMax = Dsc->AddrRangeMax;\r |
159 | AcpiPtr->AddrTranslationOffset = Dsc->AddrTranslationOffset;\r |
160 | AcpiPtr->AddrLen = Dsc->AddrLen;\r |
161 | \r |
162 | ListPtr = ListPtr + 1 + ((sizeof (EFI_PCI_RESOUCE_DESCRIPTOR)) / sizeof (UINT64));\r |
163 | AcpiPtr++;\r |
164 | }\r |
165 | //\r |
166 | // put the checksum\r |
167 | //\r |
168 | PtrEnd = (EFI_ACPI_END_TAG_DESCRIPTOR *) (AcpiPtr);\r |
169 | PtrEnd->Desc = ACPI_END_TAG_DESCRIPTOR;\r |
170 | PtrEnd->Checksum = 0;\r |
171 | \r |
172 | *(VOID **) Configuration = OldAcpiPtr;\r |
173 | \r |
174 | return EFI_SUCCESS;\r |
175 | \r |
176 | case DEVICE_RES_TAG:\r |
177 | //\r |
178 | // Adjust the pointer to the next PCI resource descriptor item\r |
179 | //\r |
180 | ListPtr = ListPtr + 1 + ((sizeof (EFI_PCI_RESOUCE_DESCRIPTOR)) / sizeof (UINT64));\r |
181 | break;\r |
182 | \r |
183 | default:\r |
184 | return EFI_UNSUPPORTED;\r |
185 | }\r |
186 | }\r |
187 | \r |
188 | return EFI_UNSUPPORTED;\r |
189 | \r |
190 | }\r |
191 | \r |
192 | /**\r |
193 | Check the incompatible device list and return configuraton register mask values.\r |
194 | \r |
195 | This function searches the incompatible device list according to request\r |
196 | information. If the PCI device belongs to the devices list, corresponding\r |
197 | configuration informtion will be returned, in the meantime return EFI_SUCCESS.\r |
198 | \r |
199 | @param PciDeviceInfo A pointer to EFI_PCI_DEVICE_INFO.\r |
200 | @param AccessType Access Type, READ or WRITE.\r |
201 | @param Offset The address within the PCI configuration space.\r |
202 | @param Configuration Returned information.\r |
203 | \r |
204 | @retval returns EFI_SUCCESS if check incompatible device ok.\r |
205 | Otherwise return EFI_UNSUPPORTED.\r |
206 | **/\r |
207 | RETURN_STATUS\r |
208 | EFIAPI\r |
209 | PciRegisterUpdateCheck (\r |
210 | IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,\r |
211 | IN UINT64 AccessType,\r |
212 | IN UINT64 Offset,\r |
213 | OUT VOID *Configuration\r |
214 | )\r |
215 | {\r |
216 | EFI_PCI_DEVICE_INFO *Header;\r |
217 | UINT64 Tag;\r |
218 | UINT64 *ListPtr;\r |
219 | EFI_PCI_REGISTER_VALUE_DATA *RegisterPtr;\r |
220 | EFI_PCI_REGISTER_VALUE_DATA *Dsc;\r |
221 | \r |
222 | ASSERT (PciDeviceInfo != NULL);\r |
223 | \r |
224 | ListPtr = IncompatiblePciDeviceListForRegister;\r |
225 | \r |
226 | //\r |
227 | // Initialize the return value to NULL\r |
228 | //\r |
229 | * (VOID **) Configuration = NULL;\r |
230 | \r |
231 | while (*ListPtr != LIST_END_TAG) {\r |
232 | \r |
233 | Tag = *ListPtr;\r |
234 | \r |
235 | switch (Tag) {\r |
236 | case DEVICE_INF_TAG:\r |
237 | Header = (EFI_PCI_DEVICE_INFO *) (ListPtr + 1);\r |
238 | ListPtr = ListPtr + 1 + sizeof (EFI_PCI_DEVICE_INFO) / sizeof (UINT64);\r |
239 | \r |
240 | //\r |
241 | // Check whether the PCI device matches the device in the incompatible devices list?\r |
242 | // If not, ship next\r |
243 | //\r |
244 | if (DeviceCheck (PciDeviceInfo, Header) != EFI_SUCCESS) {\r |
245 | continue;\r |
246 | }\r |
247 | \r |
248 | //\r |
249 | // Matched an item, check whether access matches?\r |
250 | //\r |
251 | for (; *ListPtr == DEVICE_RES_TAG;) {\r |
252 | ListPtr ++;\r |
253 | if (((EFI_PCI_REGISTER_VALUE_DESCRIPTOR *)ListPtr)->Offset == (Offset & 0xfc)) {\r |
254 | if (((EFI_PCI_REGISTER_VALUE_DESCRIPTOR *)ListPtr)->AccessType == AccessType) {\r |
255 | \r |
256 | Dsc = (EFI_PCI_REGISTER_VALUE_DATA *) (ListPtr + 2);\r |
257 | RegisterPtr = AllocateZeroPool (sizeof (EFI_PCI_REGISTER_VALUE_DATA));\r |
258 | \r |
259 | RegisterPtr->AndValue = Dsc->AndValue;\r |
260 | RegisterPtr->OrValue = Dsc->OrValue;\r |
261 | \r |
262 | *(VOID **) Configuration = RegisterPtr;\r |
263 | \r |
264 | return EFI_SUCCESS;\r |
265 | }\r |
266 | }\r |
267 | ListPtr += sizeof (EFI_PCI_REGISTER_VALUE_DESCRIPTOR) / (sizeof (UINT64));\r |
268 | }\r |
269 | return EFI_UNSUPPORTED;\r |
270 | \r |
271 | case DEVICE_RES_TAG:\r |
272 | //\r |
273 | // Adjust the pointer to the next item\r |
274 | //\r |
275 | ListPtr = ListPtr + 1 + ((sizeof (EFI_PCI_REGISTER_VALUE_DESCRIPTOR)) / sizeof (UINT64));\r |
276 | break;\r |
277 | \r |
278 | default:\r |
279 | return EFI_UNSUPPORTED;\r |
280 | }\r |
281 | }\r |
282 | \r |
283 | return EFI_UNSUPPORTED;\r |
284 | }\r |
285 | \r |
286 | /**\r |
287 | Check the incompatible device list for access width incompatibility and\r |
288 | return the configuration\r |
289 | \r |
290 | This function searches the incompatible device list for access width\r |
291 | incompatibility according to request information. If the PCI device\r |
292 | belongs to the devices list, corresponding configuration informtion\r |
293 | will be returned, in the meantime return EFI_SUCCESS.\r |
294 | \r |
295 | @param PciDeviceInfo A pointer to PCI device information.\r |
296 | @param AccessType Access type, READ or WRITE.\r |
297 | @param Offset The address within the PCI configuration space.\r |
298 | @param AccessWidth Access width needs to check incompatibility.\r |
299 | @param Configuration Returned information.\r |
300 | \r |
301 | @retval returns EFI_SUCCESS if check incompatible device ok.\r |
302 | Otherwise return EFI_UNSUPPORTED.\r |
303 | **/\r |
304 | RETURN_STATUS\r |
305 | EFIAPI\r |
306 | PciRegisterAccessCheck (\r |
307 | IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,\r |
308 | IN UINT64 AccessType,\r |
309 | IN UINT64 Offset,\r |
310 | IN UINT64 AccessWidth,\r |
311 | OUT VOID *Configuration\r |
312 | )\r |
313 | {\r |
314 | EFI_PCI_DEVICE_INFO *Header;\r |
315 | UINT64 Tag;\r |
316 | UINT64 *ListPtr;\r |
317 | EFI_PCI_REGISTER_ACCESS_DATA *RegisterPtr;\r |
318 | EFI_PCI_REGISTER_ACCESS_DATA *Dsc;\r |
319 | \r |
320 | ASSERT (PciDeviceInfo != NULL);\r |
321 | \r |
322 | ListPtr = DeviceListForAccessWidth;\r |
323 | \r |
324 | //\r |
325 | // Initialize the return value to NULL\r |
326 | //\r |
327 | * (VOID **) Configuration = NULL;\r |
328 | \r |
329 | while (*ListPtr != LIST_END_TAG) {\r |
330 | \r |
331 | Tag = *ListPtr;\r |
332 | \r |
333 | switch (Tag) {\r |
334 | case DEVICE_INF_TAG:\r |
335 | Header = (EFI_PCI_DEVICE_INFO *) (ListPtr + 1);\r |
336 | ListPtr = ListPtr + 1 + sizeof (EFI_PCI_DEVICE_INFO) / sizeof (UINT64);\r |
337 | \r |
338 | //\r |
339 | // Check whether the PCI device matches the device in the incompatible devices list?\r |
340 | // If not, ship next\r |
341 | //\r |
342 | if (DeviceCheck (PciDeviceInfo, Header) != EFI_SUCCESS) {\r |
343 | continue;\r |
344 | }\r |
345 | \r |
346 | //\r |
347 | // Matched an item, check whether access matches?\r |
348 | //\r |
349 | for (; *ListPtr == DEVICE_RES_TAG;) {\r |
350 | ListPtr ++;\r |
351 | if (((EFI_PCI_REGISTER_ACCESS_DESCRIPTOR *) ListPtr)->AccessType == AccessType &&\r |
352 | ((EFI_PCI_REGISTER_ACCESS_DESCRIPTOR *) ListPtr)->AccessWidth == AccessWidth ) {\r |
353 | \r |
354 | Dsc = (EFI_PCI_REGISTER_ACCESS_DATA *) (ListPtr + 2);\r |
355 | \r |
356 | if((Dsc->StartOffset <= Offset) && (Dsc->EndOffset > Offset)) {\r |
357 | \r |
358 | RegisterPtr = AllocateZeroPool (sizeof (EFI_PCI_REGISTER_ACCESS_DATA));\r |
359 | \r |
360 | RegisterPtr->StartOffset = Dsc->StartOffset;\r |
361 | RegisterPtr->EndOffset = Dsc->EndOffset;\r |
362 | RegisterPtr->Width = Dsc->Width;\r |
363 | \r |
364 | *(VOID **) Configuration = RegisterPtr;\r |
365 | \r |
366 | return EFI_SUCCESS;\r |
367 | }\r |
368 | }\r |
369 | ListPtr += sizeof (EFI_PCI_REGISTER_ACCESS_DESCRIPTOR) / (sizeof (UINT64));\r |
370 | }\r |
371 | return EFI_UNSUPPORTED;\r |
372 | \r |
373 | case DEVICE_RES_TAG:\r |
374 | //\r |
375 | // Adjust the pointer to the next item\r |
376 | //\r |
377 | ListPtr = ListPtr + 1 + ((sizeof (EFI_PCI_REGISTER_ACCESS_DESCRIPTOR)) / sizeof (UINT64));\r |
378 | break;\r |
379 | \r |
380 | default:\r |
381 | return EFI_UNSUPPORTED;\r |
382 | }\r |
383 | }\r |
384 | \r |
385 | return EFI_UNSUPPORTED;\r |
386 | }\r |
387 | \r |