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1 | /** @file\r |
2 | This file include all platform action which can be customized by IBV/OEM.\r | |
3 | \r | |
4 | Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
6 | \r | |
7 | **/\r | |
8 | \r | |
9 | #include "PlatformBootManager.h"\r | |
10 | #include "PlatformConsole.h"\r | |
11 | \r | |
12 | #define PCI_DEVICE_PATH_NODE(Func, Dev) \\r | |
13 | { \\r | |
14 | { \\r | |
15 | HARDWARE_DEVICE_PATH, \\r | |
16 | HW_PCI_DP, \\r | |
17 | { \\r | |
18 | (UINT8) (sizeof (PCI_DEVICE_PATH)), \\r | |
19 | (UINT8) ((sizeof (PCI_DEVICE_PATH)) >> 8) \\r | |
20 | } \\r | |
21 | }, \\r | |
22 | (Func), \\r | |
23 | (Dev) \\r | |
24 | }\r | |
25 | \r | |
26 | #define PNPID_DEVICE_PATH_NODE(PnpId) \\r | |
27 | { \\r | |
28 | { \\r | |
29 | ACPI_DEVICE_PATH, \\r | |
30 | ACPI_DP, \\r | |
31 | { \\r | |
32 | (UINT8) (sizeof (ACPI_HID_DEVICE_PATH)), \\r | |
33 | (UINT8) ((sizeof (ACPI_HID_DEVICE_PATH)) >> 8) \\r | |
34 | }, \\r | |
35 | }, \\r | |
36 | EISA_PNP_ID((PnpId)), \\r | |
37 | 0 \\r | |
38 | }\r | |
39 | \r | |
40 | #define gPciRootBridge \\r | |
41 | PNPID_DEVICE_PATH_NODE(0x0A03)\r | |
42 | \r | |
43 | #define gPnp16550ComPort \\r | |
44 | PNPID_DEVICE_PATH_NODE(0x0501)\r | |
45 | \r | |
46 | #define gUartVendor \\r | |
47 | { \\r | |
48 | { \\r | |
49 | HARDWARE_DEVICE_PATH, \\r | |
50 | HW_VENDOR_DP, \\r | |
51 | { \\r | |
52 | (UINT8) (sizeof (VENDOR_DEVICE_PATH)), \\r | |
53 | (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8) \\r | |
54 | } \\r | |
55 | }, \\r | |
56 | {0xD3987D4B, 0x971A, 0x435F, {0x8C, 0xAF, 0x49, 0x67, 0xEB, 0x62, 0x72, 0x41}} \\r | |
57 | }\r | |
58 | \r | |
59 | #define gUart \\r | |
60 | { \\r | |
61 | { \\r | |
62 | MESSAGING_DEVICE_PATH, \\r | |
63 | MSG_UART_DP, \\r | |
64 | { \\r | |
65 | (UINT8) (sizeof (UART_DEVICE_PATH)), \\r | |
66 | (UINT8) ((sizeof (UART_DEVICE_PATH)) >> 8) \\r | |
67 | } \\r | |
68 | }, \\r | |
69 | 0, \\r | |
70 | 115200, \\r | |
71 | 8, \\r | |
72 | 1, \\r | |
73 | 1 \\r | |
74 | }\r | |
75 | \r | |
76 | #define gPcAnsiTerminal \\r | |
77 | { \\r | |
78 | { \\r | |
79 | MESSAGING_DEVICE_PATH, \\r | |
80 | MSG_VENDOR_DP, \\r | |
81 | { \\r | |
82 | (UINT8) (sizeof (VENDOR_DEVICE_PATH)), \\r | |
83 | (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8) \\r | |
84 | } \\r | |
85 | }, \\r | |
86 | DEVICE_PATH_MESSAGING_PC_ANSI \\r | |
87 | }\r | |
88 | \r | |
89 | \r | |
90 | ACPI_HID_DEVICE_PATH gPnp16550ComPortDeviceNode = gPnp16550ComPort;\r | |
91 | UART_DEVICE_PATH gUartDeviceNode = gUart;\r | |
92 | VENDOR_DEVICE_PATH gTerminalTypeDeviceNode = gPcAnsiTerminal;\r | |
93 | VENDOR_DEVICE_PATH gUartDeviceVendorNode = gUartVendor;\r | |
94 | \r | |
95 | //\r | |
96 | // Predefined platform root bridge\r | |
97 | //\r | |
98 | PLATFORM_ROOT_BRIDGE_DEVICE_PATH gPlatformRootBridge0 = {\r | |
99 | gPciRootBridge,\r | |
100 | gEndEntire\r | |
101 | };\r | |
102 | \r | |
103 | EFI_DEVICE_PATH_PROTOCOL *gPlatformRootBridges[] = {\r | |
104 | (EFI_DEVICE_PATH_PROTOCOL *) &gPlatformRootBridge0,\r | |
105 | NULL\r | |
106 | };\r | |
107 | \r | |
108 | BOOLEAN mDetectVgaOnly;\r | |
109 | \r | |
110 | /**\r | |
111 | Add UART to ConOut, ConIn, ErrOut.\r | |
112 | \r | |
113 | @param[in] DeviceHandle - LPC device path.\r | |
114 | \r | |
115 | @retval EFI_SUCCESS - Serial console is added to ConOut, ConIn, and ErrOut.\r | |
116 | @retval EFI_STATUS - No serial console is added.\r | |
117 | **/\r | |
118 | EFI_STATUS\r | |
119 | PrepareLpcBridgeDevicePath (\r | |
120 | IN EFI_HANDLE DeviceHandle\r | |
121 | )\r | |
122 | {\r | |
123 | EFI_STATUS Status;\r | |
124 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
125 | \r | |
126 | DevicePath = NULL;\r | |
127 | Status = gBS->HandleProtocol (\r | |
128 | DeviceHandle,\r | |
129 | &gEfiDevicePathProtocolGuid,\r | |
130 | (VOID*)&DevicePath\r | |
131 | );\r | |
132 | if (EFI_ERROR (Status)) {\r | |
133 | return Status;\r | |
134 | }\r | |
135 | \r | |
136 | //\r | |
137 | // Register COM1\r | |
138 | //\r | |
139 | DevicePath = AppendDevicePathNode ((EFI_DEVICE_PATH_PROTOCOL *)NULL, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceVendorNode);\r | |
140 | DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);\r | |
141 | DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);\r | |
142 | \r | |
143 | EfiBootManagerUpdateConsoleVariable (ConOut, DevicePath, NULL);\r | |
144 | EfiBootManagerUpdateConsoleVariable (ConIn, DevicePath, NULL);\r | |
145 | EfiBootManagerUpdateConsoleVariable (ErrOut, DevicePath, NULL);\r | |
146 | \r | |
147 | return EFI_SUCCESS;\r | |
148 | }\r | |
149 | \r | |
150 | /**\r | |
151 | Return the GOP device path in the platform.\r | |
152 | \r | |
153 | @param[in] PciDevicePath - Device path for the PCI graphics device.\r | |
154 | @param[out] GopDevicePath - Return the device path with GOP installed.\r | |
155 | \r | |
156 | @retval EFI_SUCCESS - PCI VGA is added to ConOut.\r | |
157 | @retval EFI_INVALID_PARAMETER - The device path parameter is invalid.\r | |
158 | @retval EFI_STATUS - No GOP device found.\r | |
159 | **/\r | |
160 | EFI_STATUS\r | |
161 | GetGopDevicePath (\r | |
162 | IN EFI_DEVICE_PATH_PROTOCOL *PciDevicePath,\r | |
163 | OUT EFI_DEVICE_PATH_PROTOCOL **GopDevicePath\r | |
164 | )\r | |
165 | {\r | |
166 | UINTN Index;\r | |
167 | EFI_STATUS Status;\r | |
168 | EFI_HANDLE PciDeviceHandle;\r | |
169 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
170 | EFI_DEVICE_PATH_PROTOCOL *TempPciDevicePath;\r | |
171 | UINTN GopHandleCount;\r | |
172 | EFI_HANDLE *GopHandleBuffer;\r | |
173 | \r | |
174 | if (PciDevicePath == NULL || GopDevicePath == NULL) {\r | |
175 | return EFI_INVALID_PARAMETER;\r | |
176 | }\r | |
177 | \r | |
178 | //\r | |
179 | // Initialize the GopDevicePath to be PciDevicePath\r | |
180 | //\r | |
181 | *GopDevicePath = PciDevicePath;\r | |
182 | TempPciDevicePath = PciDevicePath;\r | |
183 | \r | |
184 | Status = gBS->LocateDevicePath (\r | |
185 | &gEfiDevicePathProtocolGuid,\r | |
186 | &TempPciDevicePath,\r | |
187 | &PciDeviceHandle\r | |
188 | );\r | |
189 | if (EFI_ERROR (Status)) {\r | |
190 | return Status;\r | |
191 | }\r | |
192 | \r | |
193 | gBS->ConnectController (PciDeviceHandle, NULL, NULL, FALSE);\r | |
194 | \r | |
195 | Status = gBS->LocateHandleBuffer (\r | |
196 | ByProtocol,\r | |
197 | &gEfiGraphicsOutputProtocolGuid,\r | |
198 | NULL,\r | |
199 | &GopHandleCount,\r | |
200 | &GopHandleBuffer\r | |
201 | );\r | |
202 | if (!EFI_ERROR (Status)) {\r | |
203 | //\r | |
204 | // Add all the child handles as possible Console Device\r | |
205 | //\r | |
206 | for (Index = 0; Index < GopHandleCount; Index++) {\r | |
207 | Status = gBS->HandleProtocol (GopHandleBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID*)&TempDevicePath);\r | |
208 | if (EFI_ERROR (Status)) {\r | |
209 | continue;\r | |
210 | }\r | |
211 | if (CompareMem (\r | |
212 | PciDevicePath,\r | |
213 | TempDevicePath,\r | |
214 | GetDevicePathSize (PciDevicePath) - END_DEVICE_PATH_LENGTH\r | |
215 | ) == 0) {\r | |
216 | //\r | |
217 | // In current implementation, we only enable one of the child handles\r | |
218 | // as console device, i.e. sotre one of the child handle's device\r | |
219 | // path to variable "ConOut"\r | |
220 | // In future, we could select all child handles to be console device\r | |
221 | //\r | |
222 | *GopDevicePath = TempDevicePath;\r | |
223 | \r | |
224 | //\r | |
225 | // Delete the PCI device's path that added by GetPlugInPciVgaDevicePath()\r | |
226 | // Add the integrity GOP device path.\r | |
227 | //\r | |
228 | EfiBootManagerUpdateConsoleVariable (ConOut, NULL, PciDevicePath);\r | |
229 | EfiBootManagerUpdateConsoleVariable (ConOut, TempDevicePath, NULL);\r | |
230 | }\r | |
231 | }\r | |
232 | gBS->FreePool (GopHandleBuffer);\r | |
233 | }\r | |
234 | \r | |
235 | return EFI_SUCCESS;\r | |
236 | }\r | |
237 | \r | |
238 | /**\r | |
239 | Add PCI VGA to ConOut, ConIn, ErrOut.\r | |
240 | \r | |
241 | @param[in] DeviceHandle - Handle of PciIo protocol.\r | |
242 | \r | |
243 | @retval EFI_SUCCESS - PCI VGA is added to ConOut.\r | |
244 | @retval EFI_STATUS - No PCI VGA device is added.\r | |
245 | \r | |
246 | **/\r | |
247 | EFI_STATUS\r | |
248 | PreparePciVgaDevicePath (\r | |
249 | IN EFI_HANDLE DeviceHandle\r | |
250 | )\r | |
251 | {\r | |
252 | EFI_STATUS Status;\r | |
253 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
254 | EFI_DEVICE_PATH_PROTOCOL *GopDevicePath;\r | |
255 | \r | |
256 | DevicePath = NULL;\r | |
257 | Status = gBS->HandleProtocol (\r | |
258 | DeviceHandle,\r | |
259 | &gEfiDevicePathProtocolGuid,\r | |
260 | (VOID*)&DevicePath\r | |
261 | );\r | |
262 | if (EFI_ERROR (Status)) {\r | |
263 | return Status;\r | |
264 | }\r | |
265 | \r | |
266 | GetGopDevicePath (DevicePath, &GopDevicePath);\r | |
267 | DevicePath = GopDevicePath;\r | |
268 | \r | |
269 | EfiBootManagerUpdateConsoleVariable (ConOut, DevicePath, NULL);\r | |
270 | \r | |
271 | return EFI_SUCCESS;\r | |
272 | }\r | |
273 | \r | |
274 | /**\r | |
275 | Add PCI Serial to ConOut, ConIn, ErrOut.\r | |
276 | \r | |
277 | @param[in] DeviceHandle - Handle of PciIo protocol.\r | |
278 | \r | |
279 | @retval EFI_SUCCESS - PCI Serial is added to ConOut, ConIn, and ErrOut.\r | |
280 | @retval EFI_STATUS - No PCI Serial device is added.\r | |
281 | \r | |
282 | **/\r | |
283 | EFI_STATUS\r | |
284 | PreparePciSerialDevicePath (\r | |
285 | IN EFI_HANDLE DeviceHandle\r | |
286 | )\r | |
287 | {\r | |
288 | EFI_STATUS Status;\r | |
289 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
290 | \r | |
291 | DevicePath = NULL;\r | |
292 | Status = gBS->HandleProtocol (\r | |
293 | DeviceHandle,\r | |
294 | &gEfiDevicePathProtocolGuid,\r | |
295 | (VOID*)&DevicePath\r | |
296 | );\r | |
297 | if (EFI_ERROR (Status)) {\r | |
298 | return Status;\r | |
299 | }\r | |
300 | \r | |
301 | DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);\r | |
302 | DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);\r | |
303 | \r | |
304 | EfiBootManagerUpdateConsoleVariable (ConOut, DevicePath, NULL);\r | |
305 | EfiBootManagerUpdateConsoleVariable (ConIn, DevicePath, NULL);\r | |
306 | EfiBootManagerUpdateConsoleVariable (ErrOut, DevicePath, NULL);\r | |
307 | \r | |
308 | return EFI_SUCCESS;\r | |
309 | }\r | |
310 | \r | |
311 | \r | |
312 | /**\r | |
313 | For every PCI instance execute a callback function.\r | |
314 | \r | |
315 | @param[in] Id - The protocol GUID for callback\r | |
316 | @param[in] CallBackFunction - The callback function\r | |
317 | @param[in] Context - The context of the callback\r | |
318 | \r | |
319 | @retval EFI_STATUS - Callback function failed.\r | |
320 | \r | |
321 | **/\r | |
322 | EFI_STATUS\r | |
323 | EFIAPI\r | |
324 | VisitAllInstancesOfProtocol (\r | |
325 | IN EFI_GUID *Id,\r | |
326 | IN PROTOCOL_INSTANCE_CALLBACK CallBackFunction,\r | |
327 | IN VOID *Context\r | |
328 | )\r | |
329 | {\r | |
330 | EFI_STATUS Status;\r | |
331 | UINTN HandleCount;\r | |
332 | EFI_HANDLE *HandleBuffer;\r | |
333 | UINTN Index;\r | |
334 | VOID *Instance;\r | |
335 | \r | |
336 | //\r | |
337 | // Start to check all the PciIo to find all possible device\r | |
338 | //\r | |
339 | HandleCount = 0;\r | |
340 | HandleBuffer = NULL;\r | |
341 | Status = gBS->LocateHandleBuffer (\r | |
342 | ByProtocol,\r | |
343 | Id,\r | |
344 | NULL,\r | |
345 | &HandleCount,\r | |
346 | &HandleBuffer\r | |
347 | );\r | |
348 | if (EFI_ERROR (Status)) {\r | |
349 | return Status;\r | |
350 | }\r | |
351 | \r | |
352 | for (Index = 0; Index < HandleCount; Index++) {\r | |
353 | Status = gBS->HandleProtocol (HandleBuffer[Index], Id, &Instance);\r | |
354 | if (EFI_ERROR (Status)) {\r | |
355 | continue;\r | |
356 | }\r | |
357 | \r | |
358 | Status = (*CallBackFunction) (\r | |
359 | HandleBuffer[Index],\r | |
360 | Instance,\r | |
361 | Context\r | |
362 | );\r | |
363 | }\r | |
364 | \r | |
365 | gBS->FreePool (HandleBuffer);\r | |
366 | \r | |
367 | return EFI_SUCCESS;\r | |
368 | }\r | |
369 | \r | |
370 | \r | |
371 | /**\r | |
372 | For every PCI instance execute a callback function.\r | |
373 | \r | |
374 | @param[in] Handle - The PCI device handle\r | |
375 | @param[in] Instance - The instance of the PciIo protocol\r | |
376 | @param[in] Context - The context of the callback\r | |
377 | \r | |
378 | @retval EFI_STATUS - Callback function failed.\r | |
379 | \r | |
380 | **/\r | |
381 | EFI_STATUS\r | |
382 | EFIAPI\r | |
383 | VisitingAPciInstance (\r | |
384 | IN EFI_HANDLE Handle,\r | |
385 | IN VOID *Instance,\r | |
386 | IN VOID *Context\r | |
387 | )\r | |
388 | {\r | |
389 | EFI_STATUS Status;\r | |
390 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
391 | PCI_TYPE00 Pci;\r | |
392 | \r | |
393 | PciIo = (EFI_PCI_IO_PROTOCOL*) Instance;\r | |
394 | \r | |
395 | //\r | |
396 | // Check for all PCI device\r | |
397 | //\r | |
398 | Status = PciIo->Pci.Read (\r | |
399 | PciIo,\r | |
400 | EfiPciIoWidthUint32,\r | |
401 | 0,\r | |
402 | sizeof (Pci) / sizeof (UINT32),\r | |
403 | &Pci\r | |
404 | );\r | |
405 | if (EFI_ERROR (Status)) {\r | |
406 | return Status;\r | |
407 | }\r | |
408 | \r | |
409 | return (*(VISIT_PCI_INSTANCE_CALLBACK)(UINTN) Context) (\r | |
410 | Handle,\r | |
411 | PciIo,\r | |
412 | &Pci\r | |
413 | );\r | |
414 | \r | |
415 | }\r | |
416 | \r | |
417 | \r | |
418 | /**\r | |
419 | For every PCI instance execute a callback function.\r | |
420 | \r | |
421 | @param[in] CallBackFunction - Callback function pointer\r | |
422 | \r | |
423 | @retval EFI_STATUS - Callback function failed.\r | |
424 | \r | |
425 | **/\r | |
426 | EFI_STATUS\r | |
427 | EFIAPI\r | |
428 | VisitAllPciInstances (\r | |
429 | IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction\r | |
430 | )\r | |
431 | {\r | |
432 | return VisitAllInstancesOfProtocol (\r | |
433 | &gEfiPciIoProtocolGuid,\r | |
434 | VisitingAPciInstance,\r | |
435 | (VOID*)(UINTN) CallBackFunction\r | |
436 | );\r | |
437 | }\r | |
438 | \r | |
439 | \r | |
440 | /**\r | |
441 | Do platform specific PCI Device check and add them to\r | |
442 | ConOut, ConIn, ErrOut.\r | |
443 | \r | |
444 | @param[in] Handle - Handle of PCI device instance\r | |
445 | @param[in] PciIo - PCI IO protocol instance\r | |
446 | @param[in] Pci - PCI Header register block\r | |
447 | \r | |
448 | @retval EFI_SUCCESS - PCI Device check and Console variable update successfully.\r | |
449 | @retval EFI_STATUS - PCI Device check or Console variable update fail.\r | |
450 | \r | |
451 | **/\r | |
452 | EFI_STATUS\r | |
453 | EFIAPI\r | |
454 | DetectAndPreparePlatformPciDevicePath (\r | |
455 | IN EFI_HANDLE Handle,\r | |
456 | IN EFI_PCI_IO_PROTOCOL *PciIo,\r | |
457 | IN PCI_TYPE00 *Pci\r | |
458 | )\r | |
459 | {\r | |
460 | EFI_STATUS Status;\r | |
461 | \r | |
462 | Status = PciIo->Attributes (\r | |
463 | PciIo,\r | |
464 | EfiPciIoAttributeOperationEnable,\r | |
465 | EFI_PCI_DEVICE_ENABLE,\r | |
466 | NULL\r | |
467 | );\r | |
468 | ASSERT_EFI_ERROR (Status);\r | |
469 | \r | |
470 | if (!mDetectVgaOnly) {\r | |
471 | //\r | |
472 | // Here we decide whether it is LPC Bridge\r | |
473 | //\r | |
474 | if ((IS_PCI_LPC (Pci)) ||\r | |
475 | ((IS_PCI_ISA_PDECODE (Pci)) &&\r | |
476 | (Pci->Hdr.VendorId == 0x8086)\r | |
477 | )\r | |
478 | ) {\r | |
479 | //\r | |
480 | // Add IsaKeyboard to ConIn,\r | |
481 | // add IsaSerial to ConOut, ConIn, ErrOut\r | |
482 | //\r | |
483 | DEBUG ((DEBUG_INFO, "Found LPC Bridge device\n"));\r | |
484 | PrepareLpcBridgeDevicePath (Handle);\r | |
485 | return EFI_SUCCESS;\r | |
486 | }\r | |
487 | //\r | |
488 | // Here we decide which Serial device to enable in PCI bus\r | |
489 | //\r | |
490 | if (IS_PCI_16550SERIAL (Pci)) {\r | |
491 | //\r | |
492 | // Add them to ConOut, ConIn, ErrOut.\r | |
493 | //\r | |
494 | DEBUG ((DEBUG_INFO, "Found PCI 16550 SERIAL device\n"));\r | |
495 | PreparePciSerialDevicePath (Handle);\r | |
496 | return EFI_SUCCESS;\r | |
497 | }\r | |
498 | }\r | |
499 | \r | |
500 | //\r | |
501 | // Here we decide which VGA device to enable in PCI bus\r | |
502 | //\r | |
503 | if (IS_PCI_VGA (Pci)) {\r | |
504 | //\r | |
505 | // Add them to ConOut.\r | |
506 | //\r | |
507 | DEBUG ((DEBUG_INFO, "Found PCI VGA device\n"));\r | |
508 | PreparePciVgaDevicePath (Handle);\r | |
509 | return EFI_SUCCESS;\r | |
510 | }\r | |
511 | \r | |
512 | return Status;\r | |
513 | }\r | |
514 | \r | |
515 | \r | |
516 | /**\r | |
517 | Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut\r | |
518 | \r | |
519 | @param[in] DetectVgaOnly - Only detect VGA device if it's TRUE.\r | |
520 | \r | |
521 | @retval EFI_SUCCESS - PCI Device check and Console variable update successfully.\r | |
522 | @retval EFI_STATUS - PCI Device check or Console variable update fail.\r | |
523 | \r | |
524 | **/\r | |
525 | EFI_STATUS\r | |
526 | DetectAndPreparePlatformPciDevicePaths (\r | |
527 | BOOLEAN DetectVgaOnly\r | |
528 | )\r | |
529 | {\r | |
530 | mDetectVgaOnly = DetectVgaOnly;\r | |
531 | \r | |
532 | EfiBootManagerUpdateConsoleVariable (\r | |
533 | ConIn,\r | |
534 | (EFI_DEVICE_PATH_PROTOCOL *) &gUsbClassKeyboardDevicePath,\r | |
535 | NULL\r | |
536 | );\r | |
537 | \r | |
538 | return VisitAllPciInstances (DetectAndPreparePlatformPciDevicePath);\r | |
539 | }\r | |
540 | \r | |
541 | \r | |
542 | /**\r | |
543 | The function will connect root bridge\r | |
544 | \r | |
545 | @return EFI_SUCCESS Connect RootBridge successfully.\r | |
546 | \r | |
547 | **/\r | |
548 | EFI_STATUS\r | |
549 | ConnectRootBridge (\r | |
550 | VOID\r | |
551 | )\r | |
552 | {\r | |
553 | EFI_STATUS Status;\r | |
554 | EFI_HANDLE RootHandle;\r | |
555 | \r | |
556 | //\r | |
557 | // Make all the PCI_IO protocols on PCI Seg 0 show up\r | |
558 | //\r | |
559 | Status = gBS->LocateDevicePath (\r | |
560 | &gEfiDevicePathProtocolGuid,\r | |
561 | &gPlatformRootBridges[0],\r | |
562 | &RootHandle\r | |
563 | );\r | |
564 | if (EFI_ERROR (Status)) {\r | |
565 | return Status;\r | |
566 | }\r | |
567 | \r | |
568 | Status = gBS->ConnectController (RootHandle, NULL, NULL, FALSE);\r | |
569 | if (EFI_ERROR (Status)) {\r | |
570 | return Status;\r | |
571 | }\r | |
572 | \r | |
573 | return EFI_SUCCESS;\r | |
574 | }\r | |
575 | \r | |
576 | /**\r | |
577 | Platform console init. Include the platform firmware vendor, revision\r | |
578 | and so crc check.\r | |
579 | \r | |
580 | **/\r | |
581 | VOID\r | |
582 | EFIAPI\r | |
583 | PlatformConsoleInit (\r | |
584 | VOID\r | |
585 | )\r | |
586 | {\r | |
587 | gUartDeviceNode.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);\r | |
588 | gUartDeviceNode.DataBits = PcdGet8 (PcdUartDefaultDataBits);\r | |
589 | gUartDeviceNode.Parity = PcdGet8 (PcdUartDefaultParity);\r | |
590 | gUartDeviceNode.StopBits = PcdGet8 (PcdUartDefaultStopBits);\r | |
591 | \r | |
592 | ConnectRootBridge ();\r | |
593 | \r | |
594 | //\r | |
595 | // Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut\r | |
596 | //\r | |
597 | DetectAndPreparePlatformPciDevicePaths (FALSE);\r | |
598 | \r | |
599 | }\r |