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1 | /** @file\r |
2 | ConsoleOut Routines that speak VGA.\r | |
3 | \r | |
4 | Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>\r | |
5 | \r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions\r | |
8 | of the BSD License which accompanies this distribution. The\r | |
9 | full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #include "FbGop.h"\r | |
18 | \r | |
19 | EFI_PIXEL_BITMASK mPixelBitMask = {0x0000FF, 0x00FF00, 0xFF0000, 0x000000};\r | |
20 | \r | |
21 | //\r | |
22 | // Save controller attributes during first start\r | |
23 | //\r | |
24 | UINT64 mOriginalPciAttributes;\r | |
25 | BOOLEAN mPciAttributesSaved = FALSE;\r | |
26 | \r | |
27 | \r | |
28 | //\r | |
29 | // EFI Driver Binding Protocol Instance\r | |
30 | //\r | |
31 | EFI_DRIVER_BINDING_PROTOCOL gFbGopDriverBinding = {\r | |
32 | FbGopDriverBindingSupported,\r | |
33 | FbGopDriverBindingStart,\r | |
34 | FbGopDriverBindingStop,\r | |
35 | 0x3,\r | |
36 | NULL,\r | |
37 | NULL\r | |
38 | };\r | |
39 | \r | |
40 | //\r | |
41 | // Native resolution in EDID DetailedTiming[0]\r | |
42 | //\r | |
43 | UINT32 mNativeModeHorizontal;\r | |
44 | UINT32 mNativeModeVertical;\r | |
45 | \r | |
46 | /**\r | |
47 | Supported.\r | |
48 | \r | |
49 | @param This Pointer to driver binding protocol\r | |
50 | @param Controller Controller handle to connect\r | |
51 | @param RemainingDevicePath A pointer to the remaining portion of a device\r | |
52 | path\r | |
53 | \r | |
54 | @retval EFI_STATUS EFI_SUCCESS:This controller can be managed by this\r | |
55 | driver, Otherwise, this controller cannot be\r | |
56 | managed by this driver\r | |
57 | \r | |
58 | **/\r | |
59 | EFI_STATUS\r | |
60 | EFIAPI\r | |
61 | FbGopDriverBindingSupported (\r | |
62 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
63 | IN EFI_HANDLE Controller,\r | |
64 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
65 | )\r | |
66 | {\r | |
67 | EFI_STATUS Status;\r | |
68 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
69 | PCI_TYPE00 Pci;\r | |
70 | EFI_DEV_PATH *Node;\r | |
71 | \r | |
72 | //\r | |
73 | // Open the IO Abstraction(s) needed to perform the supported test\r | |
74 | //\r | |
75 | Status = gBS->OpenProtocol (\r | |
76 | Controller,\r | |
77 | &gEfiPciIoProtocolGuid,\r | |
78 | (VOID **) &PciIo,\r | |
79 | This->DriverBindingHandle,\r | |
80 | Controller,\r | |
81 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
82 | );\r | |
83 | if (EFI_ERROR (Status)) {\r | |
84 | return Status;\r | |
85 | }\r | |
86 | \r | |
87 | //\r | |
88 | // See if this is a PCI Graphics Controller by looking at the Command register and\r | |
89 | // Class Code Register\r | |
90 | //\r | |
91 | Status = PciIo->Pci.Read (\r | |
92 | PciIo,\r | |
93 | EfiPciIoWidthUint32,\r | |
94 | 0,\r | |
95 | sizeof (Pci) / sizeof (UINT32),\r | |
96 | &Pci\r | |
97 | );\r | |
98 | if (EFI_ERROR (Status)) {\r | |
99 | Status = EFI_UNSUPPORTED;\r | |
100 | goto Done;\r | |
101 | }\r | |
102 | \r | |
103 | Status = EFI_UNSUPPORTED;\r | |
104 | if (Pci.Hdr.ClassCode[2] == 0x03 || (Pci.Hdr.ClassCode[2] == 0x00 && Pci.Hdr.ClassCode[1] == 0x01)) {\r | |
105 | \r | |
106 | Status = EFI_SUCCESS;\r | |
107 | //\r | |
108 | // If this is a graphics controller,\r | |
109 | // go further check RemainingDevicePath validation\r | |
110 | //\r | |
111 | if (RemainingDevicePath != NULL) {\r | |
112 | Node = (EFI_DEV_PATH *) RemainingDevicePath;\r | |
113 | //\r | |
114 | // Check if RemainingDevicePath is the End of Device Path Node, \r | |
115 | // if yes, return EFI_SUCCESS\r | |
116 | //\r | |
117 | if (!IsDevicePathEnd (Node)) {\r | |
118 | //\r | |
119 | // If RemainingDevicePath isn't the End of Device Path Node,\r | |
120 | // check its validation\r | |
121 | //\r | |
122 | if (Node->DevPath.Type != ACPI_DEVICE_PATH ||\r | |
123 | Node->DevPath.SubType != ACPI_ADR_DP ||\r | |
124 | DevicePathNodeLength(&Node->DevPath) < sizeof(ACPI_ADR_DEVICE_PATH)) {\r | |
125 | Status = EFI_UNSUPPORTED;\r | |
126 | }\r | |
127 | }\r | |
128 | }\r | |
129 | }\r | |
130 | \r | |
131 | Done:\r | |
132 | gBS->CloseProtocol (\r | |
133 | Controller,\r | |
134 | &gEfiPciIoProtocolGuid,\r | |
135 | This->DriverBindingHandle,\r | |
136 | Controller\r | |
137 | );\r | |
138 | \r | |
139 | return Status;\r | |
140 | }\r | |
141 | \r | |
142 | \r | |
143 | /**\r | |
144 | Install Graphics Output Protocol onto VGA device handles.\r | |
145 | \r | |
146 | @param This Pointer to driver binding protocol\r | |
147 | @param Controller Controller handle to connect\r | |
148 | @param RemainingDevicePath A pointer to the remaining portion of a device\r | |
149 | path\r | |
150 | \r | |
151 | @return EFI_STATUS\r | |
152 | \r | |
153 | **/\r | |
154 | EFI_STATUS\r | |
155 | EFIAPI\r | |
156 | FbGopDriverBindingStart (\r | |
157 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
158 | IN EFI_HANDLE Controller,\r | |
159 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
160 | )\r | |
161 | {\r | |
162 | EFI_STATUS Status;\r | |
163 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
164 | EFI_PCI_IO_PROTOCOL *PciIo; \r | |
165 | UINT64 Supports;\r | |
166 | \r | |
167 | DEBUG ((EFI_D_INFO, "GOP START\n"));\r | |
168 | \r | |
169 | //\r | |
170 | // Initialize local variables\r | |
171 | //\r | |
172 | PciIo = NULL;\r | |
173 | ParentDevicePath = NULL;\r | |
174 | \r | |
175 | //\r | |
176 | // Prepare for status code\r | |
177 | //\r | |
178 | Status = gBS->HandleProtocol (\r | |
179 | Controller,\r | |
180 | &gEfiDevicePathProtocolGuid,\r | |
181 | (VOID **) &ParentDevicePath\r | |
182 | );\r | |
183 | if (EFI_ERROR (Status)) {\r | |
184 | return Status;\r | |
185 | }\r | |
186 | \r | |
187 | //\r | |
188 | // Open the IO Abstraction(s) needed\r | |
189 | //\r | |
190 | Status = gBS->OpenProtocol (\r | |
191 | Controller,\r | |
192 | &gEfiPciIoProtocolGuid,\r | |
193 | (VOID **) &PciIo,\r | |
194 | This->DriverBindingHandle,\r | |
195 | Controller,\r | |
196 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
197 | );\r | |
198 | if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {\r | |
199 | return Status;\r | |
200 | }\r | |
201 | \r | |
202 | //\r | |
203 | // Save original PCI attributes\r | |
204 | //\r | |
205 | if (!mPciAttributesSaved) {\r | |
206 | Status = PciIo->Attributes (\r | |
207 | PciIo,\r | |
208 | EfiPciIoAttributeOperationGet,\r | |
209 | 0,\r | |
210 | &mOriginalPciAttributes\r | |
211 | );\r | |
212 | \r | |
213 | if (EFI_ERROR (Status)) {\r | |
214 | goto Done;\r | |
215 | }\r | |
216 | mPciAttributesSaved = TRUE;\r | |
217 | }\r | |
218 | \r | |
219 | //\r | |
220 | // Get supported PCI attributes\r | |
221 | //\r | |
222 | Status = PciIo->Attributes (\r | |
223 | PciIo,\r | |
224 | EfiPciIoAttributeOperationSupported,\r | |
225 | 0,\r | |
226 | &Supports\r | |
227 | );\r | |
228 | if (EFI_ERROR (Status)) {\r | |
229 | goto Done;\r | |
230 | }\r | |
231 | \r | |
232 | Supports &= (EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16);\r | |
233 | if (Supports == 0 || Supports == (EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) {\r | |
234 | Status = EFI_UNSUPPORTED;\r | |
235 | goto Done;\r | |
236 | } \r | |
237 | \r | |
238 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
239 | EFI_PROGRESS_CODE,\r | |
240 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_ENABLE,\r | |
241 | ParentDevicePath\r | |
242 | );\r | |
243 | //\r | |
244 | // Enable the device and make sure VGA cycles are being forwarded to this VGA device\r | |
245 | //\r | |
246 | Status = PciIo->Attributes (\r | |
247 | PciIo,\r | |
248 | EfiPciIoAttributeOperationEnable,\r | |
249 | EFI_PCI_DEVICE_ENABLE,\r | |
250 | NULL\r | |
251 | );\r | |
252 | if (EFI_ERROR (Status)) {\r | |
253 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
254 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
255 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_RESOURCE_CONFLICT,\r | |
256 | ParentDevicePath\r | |
257 | );\r | |
258 | goto Done;\r | |
259 | }\r | |
260 | \r | |
261 | if (RemainingDevicePath != NULL) {\r | |
262 | if (IsDevicePathEnd (RemainingDevicePath)) {\r | |
263 | //\r | |
264 | // If RemainingDevicePath is the End of Device Path Node,\r | |
265 | // don't create any child device and return EFI_SUCESS\r | |
266 | Status = EFI_SUCCESS;\r | |
267 | goto Done;\r | |
268 | }\r | |
269 | }\r | |
270 | \r | |
271 | //\r | |
272 | // Create child handle and install GraphicsOutputProtocol on it\r | |
273 | //\r | |
274 | Status = FbGopChildHandleInstall (\r | |
275 | This,\r | |
276 | Controller,\r | |
277 | PciIo,\r | |
278 | NULL,\r | |
279 | ParentDevicePath,\r | |
280 | RemainingDevicePath\r | |
281 | );\r | |
282 | \r | |
283 | Done:\r | |
284 | if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) {\r | |
285 | \r | |
286 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
287 | EFI_PROGRESS_CODE,\r | |
288 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_DISABLE,\r | |
289 | ParentDevicePath\r | |
290 | );\r | |
291 | \r | |
292 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
293 | EFI_PROGRESS_CODE,\r | |
294 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_NOT_DETECTED,\r | |
295 | ParentDevicePath\r | |
296 | );\r | |
297 | if (!HasChildHandle (Controller)) {\r | |
298 | if (mPciAttributesSaved) {\r | |
299 | //\r | |
300 | // Restore original PCI attributes\r | |
301 | //\r | |
302 | PciIo->Attributes (\r | |
303 | PciIo,\r | |
304 | EfiPciIoAttributeOperationSet,\r | |
305 | mOriginalPciAttributes,\r | |
306 | NULL\r | |
307 | );\r | |
308 | }\r | |
309 | }\r | |
310 | //\r | |
311 | // Release PCI I/O Protocols on the controller handle.\r | |
312 | //\r | |
313 | gBS->CloseProtocol (\r | |
314 | Controller,\r | |
315 | &gEfiPciIoProtocolGuid,\r | |
316 | This->DriverBindingHandle,\r | |
317 | Controller\r | |
318 | );\r | |
319 | }\r | |
320 | \r | |
321 | return Status;\r | |
322 | }\r | |
323 | \r | |
324 | \r | |
325 | /**\r | |
326 | Stop.\r | |
327 | \r | |
328 | @param This Pointer to driver binding protocol\r | |
329 | @param Controller Controller handle to connect\r | |
330 | @param NumberOfChildren Number of children handle created by this driver\r | |
331 | @param ChildHandleBuffer Buffer containing child handle created\r | |
332 | \r | |
333 | @retval EFI_SUCCESS Driver disconnected successfully from controller\r | |
334 | @retval EFI_UNSUPPORTED Cannot find FB_VIDEO_DEV structure\r | |
335 | \r | |
336 | **/\r | |
337 | EFI_STATUS\r | |
338 | EFIAPI\r | |
339 | FbGopDriverBindingStop (\r | |
340 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
341 | IN EFI_HANDLE Controller,\r | |
342 | IN UINTN NumberOfChildren,\r | |
343 | IN EFI_HANDLE *ChildHandleBuffer\r | |
344 | )\r | |
345 | {\r | |
346 | EFI_STATUS Status;\r | |
347 | BOOLEAN AllChildrenStopped;\r | |
348 | UINTN Index;\r | |
349 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
350 | \r | |
351 | AllChildrenStopped = TRUE;\r | |
352 | \r | |
353 | if (NumberOfChildren == 0) {\r | |
354 | //\r | |
355 | // Close PCI I/O protocol on the controller handle\r | |
356 | //\r | |
357 | gBS->CloseProtocol (\r | |
358 | Controller,\r | |
359 | &gEfiPciIoProtocolGuid,\r | |
360 | This->DriverBindingHandle,\r | |
361 | Controller\r | |
362 | );\r | |
363 | \r | |
364 | return EFI_SUCCESS;\r | |
365 | }\r | |
366 | \r | |
367 | for (Index = 0; Index < NumberOfChildren; Index++) {\r | |
368 | \r | |
369 | Status = EFI_SUCCESS;\r | |
370 | \r | |
371 | FbGopChildHandleUninstall (This, Controller, ChildHandleBuffer[Index]);\r | |
372 | \r | |
373 | if (EFI_ERROR (Status)) {\r | |
374 | AllChildrenStopped = FALSE;\r | |
375 | }\r | |
376 | }\r | |
377 | \r | |
378 | if (!AllChildrenStopped) {\r | |
379 | return EFI_DEVICE_ERROR;\r | |
380 | }\r | |
381 | \r | |
382 | if (!HasChildHandle (Controller)) {\r | |
383 | if (mPciAttributesSaved) {\r | |
384 | Status = gBS->HandleProtocol (\r | |
385 | Controller,\r | |
386 | &gEfiPciIoProtocolGuid,\r | |
387 | (VOID **) &PciIo\r | |
388 | );\r | |
389 | ASSERT_EFI_ERROR (Status);\r | |
390 | \r | |
391 | //\r | |
392 | // Restore original PCI attributes\r | |
393 | //\r | |
394 | Status = PciIo->Attributes (\r | |
395 | PciIo,\r | |
396 | EfiPciIoAttributeOperationSet,\r | |
397 | mOriginalPciAttributes,\r | |
398 | NULL\r | |
399 | );\r | |
400 | ASSERT_EFI_ERROR (Status);\r | |
401 | }\r | |
402 | }\r | |
403 | \r | |
404 | \r | |
405 | return EFI_SUCCESS;\r | |
406 | }\r | |
407 | \r | |
408 | \r | |
409 | /**\r | |
410 | Install child handles if the Handle supports MBR format.\r | |
411 | \r | |
412 | @param This Calling context.\r | |
413 | @param ParentHandle Parent Handle\r | |
414 | @param ParentPciIo Parent PciIo interface\r | |
415 | @param ParentLegacyBios Parent LegacyBios interface\r | |
416 | @param ParentDevicePath Parent Device Path\r | |
417 | @param RemainingDevicePath Remaining Device Path\r | |
418 | \r | |
419 | @retval EFI_SUCCESS If a child handle was added\r | |
420 | @retval other A child handle was not added\r | |
421 | \r | |
422 | **/\r | |
423 | EFI_STATUS\r | |
424 | FbGopChildHandleInstall (\r | |
425 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
426 | IN EFI_HANDLE ParentHandle,\r | |
427 | IN EFI_PCI_IO_PROTOCOL *ParentPciIo,\r | |
428 | IN VOID *ParentLegacyBios,\r | |
429 | IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,\r | |
430 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
431 | )\r | |
432 | {\r | |
433 | EFI_STATUS Status;\r | |
434 | FB_VIDEO_DEV *FbGopPrivate;\r | |
435 | PCI_TYPE00 Pci;\r | |
436 | ACPI_ADR_DEVICE_PATH AcpiDeviceNode;\r | |
437 | BOOLEAN ProtocolInstalled;\r | |
438 | \r | |
439 | //\r | |
440 | // Allocate the private device structure for video device\r | |
441 | //\r | |
442 | FbGopPrivate = (FB_VIDEO_DEV *) AllocateZeroPool (\r | |
443 | sizeof (FB_VIDEO_DEV)\r | |
444 | );\r | |
445 | if (NULL == FbGopPrivate) {\r | |
446 | Status = EFI_OUT_OF_RESOURCES;\r | |
447 | goto Done;\r | |
448 | }\r | |
449 | \r | |
450 | //\r | |
451 | // See if this is a VGA compatible controller or not\r | |
452 | //\r | |
453 | Status = ParentPciIo->Pci.Read (\r | |
454 | ParentPciIo,\r | |
455 | EfiPciIoWidthUint32,\r | |
456 | 0,\r | |
457 | sizeof (Pci) / sizeof (UINT32),\r | |
458 | &Pci\r | |
459 | );\r | |
460 | if (EFI_ERROR (Status)) {\r | |
461 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
462 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
463 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_CONTROLLER_ERROR,\r | |
464 | ParentDevicePath\r | |
465 | );\r | |
466 | goto Done;\r | |
467 | }\r | |
468 | \r | |
469 | //\r | |
470 | // Initialize the child private structure\r | |
471 | //\r | |
472 | FbGopPrivate->Signature = FB_VIDEO_DEV_SIGNATURE;\r | |
473 | \r | |
474 | //\r | |
475 | // Fill in Graphics Output specific mode structures\r | |
476 | // \r | |
477 | FbGopPrivate->ModeData = NULL;\r | |
478 | \r | |
479 | FbGopPrivate->VbeFrameBuffer = NULL;\r | |
480 | \r | |
481 | FbGopPrivate->EdidDiscovered.SizeOfEdid = 0;\r | |
482 | FbGopPrivate->EdidDiscovered.Edid = NULL;\r | |
483 | FbGopPrivate->EdidActive.SizeOfEdid = 0;\r | |
484 | FbGopPrivate->EdidActive.Edid = NULL;\r | |
485 | \r | |
486 | //\r | |
487 | // Fill in the Graphics Output Protocol\r | |
488 | //\r | |
489 | FbGopPrivate->GraphicsOutput.QueryMode = FbGopGraphicsOutputQueryMode;\r | |
490 | FbGopPrivate->GraphicsOutput.SetMode = FbGopGraphicsOutputSetMode;\r | |
491 | \r | |
492 | \r | |
493 | //\r | |
494 | // Allocate buffer for Graphics Output Protocol mode information\r | |
495 | //\r | |
496 | FbGopPrivate->GraphicsOutput.Mode = (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *) AllocatePool (\r | |
497 | sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE)\r | |
498 | );\r | |
499 | if (NULL == FbGopPrivate->GraphicsOutput.Mode) {\r | |
500 | Status = EFI_OUT_OF_RESOURCES;\r | |
501 | goto Done;\r | |
502 | }\r | |
503 | \r | |
504 | FbGopPrivate->GraphicsOutput.Mode->Info = (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *) AllocatePool (\r | |
505 | sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION)\r | |
506 | );\r | |
507 | if (NULL == FbGopPrivate->GraphicsOutput.Mode->Info) {\r | |
508 | Status = EFI_OUT_OF_RESOURCES;\r | |
509 | goto Done;\r | |
510 | }\r | |
511 | \r | |
512 | //\r | |
513 | // Set Gop Device Path, here RemainingDevicePath will not be one End of Device Path Node.\r | |
514 | //\r | |
515 | if ((RemainingDevicePath == NULL) || (!IsDevicePathEnd (RemainingDevicePath))) {\r | |
516 | if (RemainingDevicePath == NULL) {\r | |
517 | ZeroMem (&AcpiDeviceNode, sizeof (ACPI_ADR_DEVICE_PATH));\r | |
518 | AcpiDeviceNode.Header.Type = ACPI_DEVICE_PATH;\r | |
519 | AcpiDeviceNode.Header.SubType = ACPI_ADR_DP;\r | |
520 | AcpiDeviceNode.ADR = ACPI_DISPLAY_ADR (1, 0, 0, 1, 0, ACPI_ADR_DISPLAY_TYPE_VGA, 0, 0);\r | |
521 | SetDevicePathNodeLength (&AcpiDeviceNode.Header, sizeof (ACPI_ADR_DEVICE_PATH));\r | |
522 | \r | |
523 | FbGopPrivate->GopDevicePath = AppendDevicePathNode (\r | |
524 | ParentDevicePath,\r | |
525 | (EFI_DEVICE_PATH_PROTOCOL *) &AcpiDeviceNode\r | |
526 | );\r | |
527 | } else {\r | |
528 | FbGopPrivate->GopDevicePath = AppendDevicePathNode (ParentDevicePath, RemainingDevicePath);\r | |
529 | }\r | |
530 | \r | |
531 | //\r | |
532 | // Creat child handle and device path protocol firstly\r | |
533 | //\r | |
534 | FbGopPrivate->Handle = NULL;\r | |
535 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
536 | &FbGopPrivate->Handle,\r | |
537 | &gEfiDevicePathProtocolGuid,\r | |
538 | FbGopPrivate->GopDevicePath,\r | |
539 | NULL\r | |
540 | );\r | |
541 | if (EFI_ERROR (Status)) {\r | |
542 | goto Done;\r | |
543 | }\r | |
544 | }\r | |
545 | \r | |
546 | //\r | |
547 | // When check for VBE, PCI I/O protocol is needed, so use parent's protocol interface temporally\r | |
548 | //\r | |
549 | FbGopPrivate->PciIo = ParentPciIo;\r | |
550 | \r | |
551 | //\r | |
552 | // Check for VESA BIOS Extensions for modes that are compatible with Graphics Output\r | |
553 | //\r | |
554 | Status = FbGopCheckForVbe (FbGopPrivate);\r | |
555 | DEBUG ((EFI_D_INFO, "FbGopCheckForVbe - %r\n", Status));\r | |
556 | \r | |
557 | if (EFI_ERROR (Status)) {\r | |
558 | Status = EFI_UNSUPPORTED;\r | |
559 | //goto Done; \r | |
560 | }\r | |
561 | \r | |
562 | ProtocolInstalled = FALSE;\r | |
563 | \r | |
564 | //\r | |
565 | // Creat child handle and install Graphics Output Protocol,EDID Discovered/Active Protocol\r | |
566 | //\r | |
567 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
568 | &FbGopPrivate->Handle,\r | |
569 | &gEfiGraphicsOutputProtocolGuid,\r | |
570 | &FbGopPrivate->GraphicsOutput, \r | |
571 | &gEfiEdidDiscoveredProtocolGuid,\r | |
572 | &FbGopPrivate->EdidDiscovered, \r | |
573 | &gEfiEdidActiveProtocolGuid,\r | |
574 | &FbGopPrivate->EdidActive, \r | |
575 | NULL\r | |
576 | );\r | |
577 | \r | |
578 | if (!EFI_ERROR (Status)) {\r | |
579 | //\r | |
580 | // Open the Parent Handle for the child\r | |
581 | //\r | |
582 | Status = gBS->OpenProtocol (\r | |
583 | ParentHandle,\r | |
584 | &gEfiPciIoProtocolGuid,\r | |
585 | (VOID **) &FbGopPrivate->PciIo,\r | |
586 | This->DriverBindingHandle,\r | |
587 | FbGopPrivate->Handle,\r | |
588 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
589 | );\r | |
590 | if (EFI_ERROR (Status)) {\r | |
591 | goto Done;\r | |
592 | }\r | |
593 | ProtocolInstalled = TRUE;\r | |
594 | }\r | |
595 | \r | |
596 | Done:\r | |
597 | if (EFI_ERROR (Status)) {\r | |
598 | //\r | |
599 | // Free private data structure\r | |
600 | //\r | |
601 | FbGopDeviceReleaseResource (FbGopPrivate);\r | |
602 | }\r | |
603 | \r | |
604 | return Status;\r | |
605 | }\r | |
606 | \r | |
607 | \r | |
608 | /**\r | |
609 | Deregister an video child handle and free resources.\r | |
610 | \r | |
611 | @param This Protocol instance pointer.\r | |
612 | @param Controller Video controller handle\r | |
613 | @param Handle Video child handle\r | |
614 | \r | |
615 | @return EFI_STATUS\r | |
616 | \r | |
617 | **/\r | |
618 | EFI_STATUS\r | |
619 | FbGopChildHandleUninstall (\r | |
620 | EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
621 | EFI_HANDLE Controller,\r | |
622 | EFI_HANDLE Handle\r | |
623 | )\r | |
624 | {\r | |
625 | EFI_STATUS Status;\r | |
626 | EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput; \r | |
627 | FB_VIDEO_DEV *FbGopPrivate;\r | |
628 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
629 | \r | |
630 | FbGopPrivate = NULL;\r | |
631 | GraphicsOutput = NULL;\r | |
632 | PciIo = NULL;\r | |
633 | Status = EFI_UNSUPPORTED;\r | |
634 | \r | |
635 | Status = gBS->OpenProtocol (\r | |
636 | Handle,\r | |
637 | &gEfiGraphicsOutputProtocolGuid,\r | |
638 | (VOID **) &GraphicsOutput,\r | |
639 | This->DriverBindingHandle,\r | |
640 | Handle,\r | |
641 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
642 | );\r | |
643 | if (!EFI_ERROR (Status)) {\r | |
644 | FbGopPrivate = FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (GraphicsOutput);\r | |
645 | }\r | |
646 | \r | |
647 | if (FbGopPrivate == NULL) {\r | |
648 | return EFI_UNSUPPORTED;\r | |
649 | }\r | |
650 | \r | |
651 | //\r | |
652 | // Close PCI I/O protocol that opened by child handle\r | |
653 | //\r | |
654 | Status = gBS->CloseProtocol (\r | |
655 | Controller,\r | |
656 | &gEfiPciIoProtocolGuid,\r | |
657 | This->DriverBindingHandle,\r | |
658 | Handle\r | |
659 | );\r | |
660 | \r | |
661 | //\r | |
662 | // Uninstall protocols on child handle\r | |
663 | //\r | |
664 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
665 | FbGopPrivate->Handle,\r | |
666 | &gEfiDevicePathProtocolGuid,\r | |
667 | FbGopPrivate->GopDevicePath,\r | |
668 | &gEfiGraphicsOutputProtocolGuid,\r | |
669 | &FbGopPrivate->GraphicsOutput,\r | |
670 | NULL\r | |
671 | );\r | |
672 | \r | |
673 | if (EFI_ERROR (Status)) {\r | |
674 | gBS->OpenProtocol (\r | |
675 | Controller,\r | |
676 | &gEfiPciIoProtocolGuid,\r | |
677 | (VOID **) &PciIo,\r | |
678 | This->DriverBindingHandle,\r | |
679 | Handle,\r | |
680 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
681 | );\r | |
682 | return Status;\r | |
683 | }\r | |
684 | \r | |
685 | //\r | |
686 | // Release all allocated resources\r | |
687 | //\r | |
688 | FbGopDeviceReleaseResource (FbGopPrivate);\r | |
689 | \r | |
690 | return EFI_SUCCESS;\r | |
691 | }\r | |
692 | \r | |
693 | \r | |
694 | /**\r | |
695 | Release resource for biso video instance.\r | |
696 | \r | |
697 | @param FbGopPrivate Video child device private data structure\r | |
698 | \r | |
699 | **/\r | |
700 | VOID\r | |
701 | FbGopDeviceReleaseResource (\r | |
702 | FB_VIDEO_DEV *FbGopPrivate\r | |
703 | )\r | |
704 | {\r | |
705 | if (FbGopPrivate == NULL) {\r | |
706 | return ;\r | |
707 | }\r | |
708 | \r | |
709 | //\r | |
710 | // Release all the resourses occupied by the FB_VIDEO_DEV\r | |
711 | //\r | |
712 | \r | |
713 | //\r | |
714 | // Free VBE Frame Buffer\r | |
715 | //\r | |
716 | if (FbGopPrivate->VbeFrameBuffer != NULL) {\r | |
717 | FreePool (FbGopPrivate->VbeFrameBuffer);\r | |
718 | }\r | |
719 | \r | |
720 | //\r | |
721 | // Free mode data\r | |
722 | //\r | |
723 | if (FbGopPrivate->ModeData != NULL) {\r | |
724 | FreePool (FbGopPrivate->ModeData);\r | |
725 | } \r | |
726 | \r | |
727 | //\r | |
728 | // Free graphics output protocol occupied resource\r | |
729 | //\r | |
730 | if (FbGopPrivate->GraphicsOutput.Mode != NULL) {\r | |
731 | if (FbGopPrivate->GraphicsOutput.Mode->Info != NULL) {\r | |
732 | FreePool (FbGopPrivate->GraphicsOutput.Mode->Info);\r | |
733 | FbGopPrivate->GraphicsOutput.Mode->Info = NULL;\r | |
734 | }\r | |
735 | FreePool (FbGopPrivate->GraphicsOutput.Mode);\r | |
736 | FbGopPrivate->GraphicsOutput.Mode = NULL;\r | |
737 | } \r | |
738 | \r | |
739 | if (FbGopPrivate->GopDevicePath!= NULL) {\r | |
740 | FreePool (FbGopPrivate->GopDevicePath);\r | |
741 | }\r | |
742 | \r | |
743 | FreePool (FbGopPrivate);\r | |
744 | \r | |
745 | return ;\r | |
746 | }\r | |
747 | \r | |
748 | \r | |
749 | \r | |
750 | /**\r | |
751 | Check if all video child handles have been uninstalled.\r | |
752 | \r | |
753 | @param Controller Video controller handle\r | |
754 | \r | |
755 | @return TRUE Child handles exist.\r | |
756 | @return FALSE All video child handles have been uninstalled.\r | |
757 | \r | |
758 | **/\r | |
759 | BOOLEAN\r | |
760 | HasChildHandle (\r | |
761 | IN EFI_HANDLE Controller\r | |
762 | )\r | |
763 | {\r | |
764 | UINTN Index;\r | |
765 | EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;\r | |
766 | UINTN EntryCount;\r | |
767 | BOOLEAN HasChild;\r | |
768 | EFI_STATUS Status;\r | |
769 | \r | |
770 | EntryCount = 0;\r | |
771 | HasChild = FALSE;\r | |
772 | Status = gBS->OpenProtocolInformation (\r | |
773 | Controller,\r | |
774 | &gEfiPciIoProtocolGuid,\r | |
775 | &OpenInfoBuffer,\r | |
776 | &EntryCount\r | |
777 | );\r | |
778 | for (Index = 0; Index < EntryCount; Index++) {\r | |
779 | if ((OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {\r | |
780 | HasChild = TRUE;\r | |
781 | }\r | |
782 | }\r | |
783 | \r | |
784 | return HasChild;\r | |
785 | }\r | |
786 | \r | |
787 | /**\r | |
788 | Check for VBE device.\r | |
789 | \r | |
790 | @param FbGopPrivate Pointer to FB_VIDEO_DEV structure\r | |
791 | \r | |
792 | @retval EFI_SUCCESS VBE device found\r | |
793 | \r | |
794 | **/\r | |
795 | EFI_STATUS\r | |
796 | FbGopCheckForVbe (\r | |
797 | IN OUT FB_VIDEO_DEV *FbGopPrivate\r | |
798 | )\r | |
799 | {\r | |
800 | EFI_STATUS Status; \r | |
801 | FB_VIDEO_MODE_DATA *ModeBuffer;\r | |
802 | FB_VIDEO_MODE_DATA *CurrentModeData; \r | |
803 | UINTN ModeNumber; \r | |
804 | UINTN BitsPerPixel; \r | |
805 | UINTN BytesPerScanLine;\r | |
806 | UINT32 HorizontalResolution;\r | |
807 | UINT32 VerticalResolution;\r | |
808 | EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer; \r | |
809 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
810 | FRAME_BUFFER_INFO *pFbInfo;\r | |
811 | \r | |
812 | Status = EFI_SUCCESS;\r | |
813 | //\r | |
814 | // Find the frame buffer information guid hob\r | |
815 | //\r | |
816 | GuidHob = GetFirstGuidHob (&gUefiFrameBufferInfoGuid);\r | |
817 | ASSERT (GuidHob != NULL);\r | |
818 | pFbInfo = (FRAME_BUFFER_INFO *)GET_GUID_HOB_DATA (GuidHob);\r | |
819 | \r | |
820 | //\r | |
821 | // Add mode to the list of available modes\r | |
822 | //\r | |
823 | VbeFrameBuffer = NULL;\r | |
824 | ModeBuffer = NULL;\r | |
825 | \r | |
826 | ModeNumber = 1; \r | |
827 | BitsPerPixel = pFbInfo->BitsPerPixel;\r | |
828 | HorizontalResolution = pFbInfo->HorizontalResolution;\r | |
829 | VerticalResolution = pFbInfo->VerticalResolution;\r | |
830 | BytesPerScanLine = HorizontalResolution * (BitsPerPixel / 8);\r | |
831 | \r | |
832 | ModeBuffer = (FB_VIDEO_MODE_DATA *) AllocatePool (\r | |
833 | ModeNumber * sizeof (FB_VIDEO_MODE_DATA)\r | |
834 | );\r | |
835 | if (NULL == ModeBuffer) {\r | |
836 | Status = EFI_OUT_OF_RESOURCES;\r | |
837 | goto Done;\r | |
838 | }\r | |
839 | \r | |
840 | VbeFrameBuffer =\r | |
841 | (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) AllocatePool (\r | |
842 | BytesPerScanLine * VerticalResolution\r | |
843 | );\r | |
844 | if (NULL == VbeFrameBuffer) {\r | |
845 | Status = EFI_OUT_OF_RESOURCES;\r | |
846 | goto Done;\r | |
847 | }\r | |
848 | \r | |
849 | if (FbGopPrivate->ModeData != NULL) {\r | |
850 | FreePool (FbGopPrivate->ModeData);\r | |
851 | }\r | |
852 | \r | |
853 | if (FbGopPrivate->VbeFrameBuffer != NULL) {\r | |
854 | FreePool (FbGopPrivate->VbeFrameBuffer);\r | |
855 | } \r | |
856 | \r | |
857 | CurrentModeData = &ModeBuffer[ModeNumber - 1];\r | |
858 | CurrentModeData->BytesPerScanLine = (UINT16)BytesPerScanLine;\r | |
859 | \r | |
860 | CurrentModeData->Red = *(FB_VIDEO_COLOR_PLACEMENT *)&(pFbInfo->Red); \r | |
861 | CurrentModeData->Blue = *(FB_VIDEO_COLOR_PLACEMENT *)&(pFbInfo->Blue); \r | |
862 | CurrentModeData->Green = *(FB_VIDEO_COLOR_PLACEMENT *)&(pFbInfo->Green); \r | |
863 | CurrentModeData->Reserved = *(FB_VIDEO_COLOR_PLACEMENT *)&(pFbInfo->Reserved); \r | |
864 | \r | |
865 | CurrentModeData->BitsPerPixel = (UINT32)BitsPerPixel;\r | |
866 | CurrentModeData->HorizontalResolution = HorizontalResolution;\r | |
867 | CurrentModeData->VerticalResolution = VerticalResolution; \r | |
868 | CurrentModeData->FrameBufferSize = CurrentModeData->BytesPerScanLine * CurrentModeData->VerticalResolution; \r | |
869 | CurrentModeData->LinearFrameBuffer = (VOID *) (UINTN) pFbInfo->LinearFrameBuffer;\r | |
870 | CurrentModeData->VbeModeNumber = 0;\r | |
871 | CurrentModeData->ColorDepth = 32;\r | |
872 | CurrentModeData->RefreshRate = 60;\r | |
873 | \r | |
874 | CurrentModeData->PixelFormat = PixelBitMask;\r | |
875 | if ((CurrentModeData->BitsPerPixel == 32) &&\r | |
876 | (CurrentModeData->Red.Mask == 0xff) && (CurrentModeData->Green.Mask == 0xff) && (CurrentModeData->Blue.Mask == 0xff)) {\r | |
877 | if ((CurrentModeData->Red.Position == 0) && (CurrentModeData->Green.Position == 8) && (CurrentModeData->Blue.Position == 16)) {\r | |
878 | CurrentModeData->PixelFormat = PixelRedGreenBlueReserved8BitPerColor;\r | |
879 | } else if ((CurrentModeData->Blue.Position == 0) && (CurrentModeData->Green.Position == 8) && (CurrentModeData->Red.Position == 16)) {\r | |
880 | CurrentModeData->PixelFormat = PixelBlueGreenRedReserved8BitPerColor;\r | |
881 | }\r | |
882 | } \r | |
883 | \r | |
884 | CopyMem (&(CurrentModeData->PixelBitMask), &mPixelBitMask, sizeof (EFI_PIXEL_BITMASK)); \r | |
885 | \r | |
886 | FbGopPrivate->ModeData = ModeBuffer;\r | |
887 | FbGopPrivate->VbeFrameBuffer = VbeFrameBuffer;\r | |
888 | \r | |
889 | //\r | |
890 | // Assign Gop's Blt function\r | |
891 | //\r | |
892 | FbGopPrivate->GraphicsOutput.Blt = FbGopGraphicsOutputVbeBlt;\r | |
893 | \r | |
894 | FbGopPrivate->GraphicsOutput.Mode->MaxMode = 1;\r | |
895 | FbGopPrivate->GraphicsOutput.Mode->Mode = 0; \r | |
896 | FbGopPrivate->GraphicsOutput.Mode->Info->Version = 0;\r | |
897 | FbGopPrivate->GraphicsOutput.Mode->Info->HorizontalResolution = HorizontalResolution;\r | |
898 | FbGopPrivate->GraphicsOutput.Mode->Info->VerticalResolution = VerticalResolution; \r | |
899 | FbGopPrivate->GraphicsOutput.Mode->Info->PixelFormat = CurrentModeData->PixelFormat;\r | |
900 | CopyMem (&(FbGopPrivate->GraphicsOutput.Mode->Info->PixelInformation), &mPixelBitMask, sizeof (EFI_PIXEL_BITMASK)); \r | |
901 | FbGopPrivate->GraphicsOutput.Mode->Info->PixelsPerScanLine = HorizontalResolution; \r | |
902 | FbGopPrivate->GraphicsOutput.Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);\r | |
903 | FbGopPrivate->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) CurrentModeData->LinearFrameBuffer;\r | |
904 | FbGopPrivate->GraphicsOutput.Mode->FrameBufferSize = CurrentModeData->FrameBufferSize;\r | |
905 | \r | |
906 | //\r | |
907 | // Find the best mode to initialize\r | |
908 | // \r | |
909 | \r | |
910 | Done:\r | |
911 | //\r | |
912 | // If there was an error, then free the mode structure\r | |
913 | //\r | |
914 | if (EFI_ERROR (Status)) {\r | |
915 | \r | |
916 | if (VbeFrameBuffer != NULL) {\r | |
917 | FreePool (VbeFrameBuffer);\r | |
918 | } \r | |
919 | \r | |
920 | if (ModeBuffer != NULL) {\r | |
921 | FreePool (ModeBuffer);\r | |
922 | } \r | |
923 | }\r | |
924 | \r | |
925 | return Status;\r | |
926 | }\r | |
927 | \r | |
928 | \r | |
929 | //\r | |
930 | // Graphics Output Protocol Member Functions for VESA BIOS Extensions\r | |
931 | //\r | |
932 | \r | |
933 | /**\r | |
934 | Graphics Output protocol interface to get video mode.\r | |
935 | \r | |
936 | @param This Protocol instance pointer.\r | |
937 | @param ModeNumber The mode number to return information on.\r | |
938 | @param SizeOfInfo A pointer to the size, in bytes, of the Info\r | |
939 | buffer.\r | |
940 | @param Info Caller allocated buffer that returns information\r | |
941 | about ModeNumber.\r | |
942 | \r | |
943 | @retval EFI_SUCCESS Mode information returned.\r | |
944 | @retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the\r | |
945 | video mode.\r | |
946 | @retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()\r | |
947 | @retval EFI_INVALID_PARAMETER One of the input args was NULL.\r | |
948 | \r | |
949 | **/\r | |
950 | EFI_STATUS\r | |
951 | EFIAPI\r | |
952 | FbGopGraphicsOutputQueryMode (\r | |
953 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,\r | |
954 | IN UINT32 ModeNumber,\r | |
955 | OUT UINTN *SizeOfInfo,\r | |
956 | OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info\r | |
957 | )\r | |
958 | {\r | |
959 | FB_VIDEO_DEV *FbGopPrivate;\r | |
960 | FB_VIDEO_MODE_DATA *ModeData;\r | |
961 | \r | |
962 | FbGopPrivate = FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);\r | |
963 | \r | |
964 | if (This == NULL || Info == NULL || SizeOfInfo == NULL || ModeNumber >= This->Mode->MaxMode) {\r | |
965 | return EFI_INVALID_PARAMETER;\r | |
966 | }\r | |
967 | \r | |
968 | *Info = (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *) AllocatePool (\r | |
969 | sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION)\r | |
970 | );\r | |
971 | if (NULL == *Info) {\r | |
972 | return EFI_OUT_OF_RESOURCES;\r | |
973 | }\r | |
974 | \r | |
975 | *SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);\r | |
976 | \r | |
977 | ModeData = &FbGopPrivate->ModeData[ModeNumber];\r | |
978 | (*Info)->Version = 0;\r | |
979 | (*Info)->HorizontalResolution = ModeData->HorizontalResolution;\r | |
980 | (*Info)->VerticalResolution = ModeData->VerticalResolution;\r | |
981 | (*Info)->PixelFormat = ModeData->PixelFormat;\r | |
982 | CopyMem (&((*Info)->PixelInformation), &(ModeData->PixelBitMask), sizeof(ModeData->PixelBitMask));\r | |
983 | \r | |
984 | (*Info)->PixelsPerScanLine = (ModeData->BytesPerScanLine * 8) / ModeData->BitsPerPixel;\r | |
985 | \r | |
986 | return EFI_SUCCESS;\r | |
987 | }\r | |
988 | \r | |
989 | /**\r | |
990 | Graphics Output protocol interface to set video mode.\r | |
991 | \r | |
992 | @param This Protocol instance pointer.\r | |
993 | @param ModeNumber The mode number to be set.\r | |
994 | \r | |
995 | @retval EFI_SUCCESS Graphics mode was changed.\r | |
996 | @retval EFI_DEVICE_ERROR The device had an error and could not complete the\r | |
997 | request.\r | |
998 | @retval EFI_UNSUPPORTED ModeNumber is not supported by this device.\r | |
999 | \r | |
1000 | **/\r | |
1001 | EFI_STATUS\r | |
1002 | EFIAPI\r | |
1003 | FbGopGraphicsOutputSetMode (\r | |
1004 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,\r | |
1005 | IN UINT32 ModeNumber\r | |
1006 | )\r | |
1007 | { \r | |
1008 | FB_VIDEO_DEV *FbGopPrivate;\r | |
1009 | FB_VIDEO_MODE_DATA *ModeData;\r | |
1010 | EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;\r | |
1011 | \r | |
1012 | if (This == NULL) {\r | |
1013 | return EFI_INVALID_PARAMETER;\r | |
1014 | }\r | |
1015 | \r | |
1016 | FbGopPrivate = FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);\r | |
1017 | \r | |
1018 | ModeData = &FbGopPrivate->ModeData[ModeNumber];\r | |
1019 | \r | |
1020 | if (ModeNumber >= This->Mode->MaxMode) {\r | |
1021 | return EFI_UNSUPPORTED;\r | |
1022 | }\r | |
1023 | \r | |
1024 | if (ModeNumber == This->Mode->Mode) {\r | |
1025 | //\r | |
1026 | // Clear screen to black\r | |
1027 | // \r | |
1028 | ZeroMem (&Background, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r | |
1029 | FbGopGraphicsOutputVbeBlt (\r | |
1030 | This,\r | |
1031 | &Background,\r | |
1032 | EfiBltVideoFill,\r | |
1033 | 0,\r | |
1034 | 0,\r | |
1035 | 0,\r | |
1036 | 0,\r | |
1037 | ModeData->HorizontalResolution,\r | |
1038 | ModeData->VerticalResolution,\r | |
1039 | 0\r | |
1040 | );\r | |
1041 | return EFI_SUCCESS;\r | |
1042 | } else {\r | |
1043 | return EFI_UNSUPPORTED;\r | |
1044 | }\r | |
1045 | \r | |
1046 | }\r | |
1047 | \r | |
1048 | /**\r | |
1049 | Update physical frame buffer, copy 4 bytes block, then copy remaining bytes.\r | |
1050 | \r | |
1051 | @param PciIo The pointer of EFI_PCI_IO_PROTOCOL\r | |
1052 | @param VbeBuffer The data to transfer to screen\r | |
1053 | @param MemAddress Physical frame buffer base address\r | |
1054 | @param DestinationX The X coordinate of the destination for BltOperation\r | |
1055 | @param DestinationY The Y coordinate of the destination for BltOperation\r | |
1056 | @param TotalBytes The total bytes of copy\r | |
1057 | @param VbePixelWidth Bytes per pixel\r | |
1058 | @param BytesPerScanLine Bytes per scan line\r | |
1059 | \r | |
1060 | **/\r | |
1061 | VOID\r | |
1062 | CopyVideoBuffer (\r | |
1063 | IN EFI_PCI_IO_PROTOCOL *PciIo,\r | |
1064 | IN UINT8 *VbeBuffer,\r | |
1065 | IN VOID *MemAddress,\r | |
1066 | IN UINTN DestinationX,\r | |
1067 | IN UINTN DestinationY,\r | |
1068 | IN UINTN TotalBytes,\r | |
1069 | IN UINT32 VbePixelWidth,\r | |
1070 | IN UINTN BytesPerScanLine\r | |
1071 | )\r | |
1072 | {\r | |
1073 | UINTN FrameBufferAddr;\r | |
1074 | UINTN CopyBlockNum;\r | |
1075 | UINTN RemainingBytes;\r | |
1076 | UINTN UnalignedBytes;\r | |
1077 | EFI_STATUS Status;\r | |
1078 | \r | |
1079 | FrameBufferAddr = (UINTN) MemAddress + (DestinationY * BytesPerScanLine) + DestinationX * VbePixelWidth;\r | |
1080 | \r | |
1081 | //\r | |
1082 | // If TotalBytes is less than 4 bytes, only start byte copy.\r | |
1083 | //\r | |
1084 | if (TotalBytes < 4) {\r | |
1085 | Status = PciIo->Mem.Write (\r | |
1086 | PciIo,\r | |
1087 | EfiPciIoWidthUint8,\r | |
1088 | EFI_PCI_IO_PASS_THROUGH_BAR,\r | |
1089 | (UINT64) FrameBufferAddr,\r | |
1090 | TotalBytes,\r | |
1091 | VbeBuffer\r | |
1092 | );\r | |
1093 | ASSERT_EFI_ERROR (Status);\r | |
1094 | return;\r | |
1095 | }\r | |
1096 | \r | |
1097 | //\r | |
1098 | // If VbeBuffer is not 4-byte aligned, start byte copy.\r | |
1099 | //\r | |
1100 | UnalignedBytes = (4 - ((UINTN) VbeBuffer & 0x3)) & 0x3;\r | |
1101 | \r | |
1102 | if (UnalignedBytes != 0) {\r | |
1103 | Status = PciIo->Mem.Write (\r | |
1104 | PciIo,\r | |
1105 | EfiPciIoWidthUint8,\r | |
1106 | EFI_PCI_IO_PASS_THROUGH_BAR,\r | |
1107 | (UINT64) FrameBufferAddr,\r | |
1108 | UnalignedBytes,\r | |
1109 | VbeBuffer\r | |
1110 | );\r | |
1111 | ASSERT_EFI_ERROR (Status);\r | |
1112 | FrameBufferAddr += UnalignedBytes;\r | |
1113 | VbeBuffer += UnalignedBytes;\r | |
1114 | }\r | |
1115 | \r | |
1116 | //\r | |
1117 | // Calculate 4-byte block count and remaining bytes.\r | |
1118 | //\r | |
1119 | CopyBlockNum = (TotalBytes - UnalignedBytes) >> 2;\r | |
1120 | RemainingBytes = (TotalBytes - UnalignedBytes) & 3;\r | |
1121 | \r | |
1122 | //\r | |
1123 | // Copy 4-byte block and remaining bytes to physical frame buffer.\r | |
1124 | //\r | |
1125 | if (CopyBlockNum != 0) {\r | |
1126 | Status = PciIo->Mem.Write (\r | |
1127 | PciIo,\r | |
1128 | EfiPciIoWidthUint32,\r | |
1129 | EFI_PCI_IO_PASS_THROUGH_BAR,\r | |
1130 | (UINT64) FrameBufferAddr,\r | |
1131 | CopyBlockNum,\r | |
1132 | VbeBuffer\r | |
1133 | );\r | |
1134 | ASSERT_EFI_ERROR (Status);\r | |
1135 | }\r | |
1136 | \r | |
1137 | if (RemainingBytes != 0) {\r | |
1138 | FrameBufferAddr += (CopyBlockNum << 2);\r | |
1139 | VbeBuffer += (CopyBlockNum << 2);\r | |
1140 | Status = PciIo->Mem.Write (\r | |
1141 | PciIo,\r | |
1142 | EfiPciIoWidthUint8,\r | |
1143 | EFI_PCI_IO_PASS_THROUGH_BAR,\r | |
1144 | (UINT64) FrameBufferAddr,\r | |
1145 | RemainingBytes,\r | |
1146 | VbeBuffer\r | |
1147 | );\r | |
1148 | ASSERT_EFI_ERROR (Status);\r | |
1149 | }\r | |
1150 | }\r | |
1151 | \r | |
1152 | /**\r | |
1153 | Worker function to block transfer for VBE device.\r | |
1154 | \r | |
1155 | @param FbGopPrivate Instance of FB_VIDEO_DEV\r | |
1156 | @param BltBuffer The data to transfer to screen\r | |
1157 | @param BltOperation The operation to perform\r | |
1158 | @param SourceX The X coordinate of the source for BltOperation\r | |
1159 | @param SourceY The Y coordinate of the source for BltOperation\r | |
1160 | @param DestinationX The X coordinate of the destination for\r | |
1161 | BltOperation\r | |
1162 | @param DestinationY The Y coordinate of the destination for\r | |
1163 | BltOperation\r | |
1164 | @param Width The width of a rectangle in the blt rectangle in\r | |
1165 | pixels\r | |
1166 | @param Height The height of a rectangle in the blt rectangle in\r | |
1167 | pixels\r | |
1168 | @param Delta Not used for EfiBltVideoFill and\r | |
1169 | EfiBltVideoToVideo operation. If a Delta of 0 is\r | |
1170 | used, the entire BltBuffer will be operated on. If\r | |
1171 | a subrectangle of the BltBuffer is used, then\r | |
1172 | Delta represents the number of bytes in a row of\r | |
1173 | the BltBuffer.\r | |
1174 | @param Mode Mode data.\r | |
1175 | \r | |
1176 | @retval EFI_INVALID_PARAMETER Invalid parameter passed in\r | |
1177 | @retval EFI_SUCCESS Blt operation success\r | |
1178 | \r | |
1179 | **/\r | |
1180 | EFI_STATUS\r | |
1181 | FbGopVbeBltWorker (\r | |
1182 | IN FB_VIDEO_DEV *FbGopPrivate,\r | |
1183 | IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL\r | |
1184 | IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,\r | |
1185 | IN UINTN SourceX,\r | |
1186 | IN UINTN SourceY,\r | |
1187 | IN UINTN DestinationX,\r | |
1188 | IN UINTN DestinationY,\r | |
1189 | IN UINTN Width,\r | |
1190 | IN UINTN Height,\r | |
1191 | IN UINTN Delta,\r | |
1192 | IN FB_VIDEO_MODE_DATA *Mode\r | |
1193 | )\r | |
1194 | {\r | |
1195 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
1196 | EFI_TPL OriginalTPL;\r | |
1197 | UINTN DstY;\r | |
1198 | UINTN SrcY;\r | |
1199 | UINTN DstX;\r | |
1200 | EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Blt;\r | |
1201 | VOID *MemAddress;\r | |
1202 | EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer;\r | |
1203 | UINTN BytesPerScanLine;\r | |
1204 | UINTN Index;\r | |
1205 | UINT8 *VbeBuffer;\r | |
1206 | UINT8 *VbeBuffer1;\r | |
1207 | UINT8 *BltUint8;\r | |
1208 | UINT32 VbePixelWidth;\r | |
1209 | UINT32 Pixel;\r | |
1210 | UINTN TotalBytes;\r | |
1211 | \r | |
1212 | PciIo = FbGopPrivate->PciIo;\r | |
1213 | \r | |
1214 | VbeFrameBuffer = FbGopPrivate->VbeFrameBuffer;\r | |
1215 | MemAddress = Mode->LinearFrameBuffer;\r | |
1216 | BytesPerScanLine = Mode->BytesPerScanLine;\r | |
1217 | VbePixelWidth = Mode->BitsPerPixel / 8;\r | |
1218 | BltUint8 = (UINT8 *) BltBuffer;\r | |
1219 | TotalBytes = Width * VbePixelWidth;\r | |
1220 | \r | |
1221 | if (((UINTN) BltOperation) >= EfiGraphicsOutputBltOperationMax) {\r | |
1222 | return EFI_INVALID_PARAMETER;\r | |
1223 | }\r | |
1224 | \r | |
1225 | if (Width == 0 || Height == 0) {\r | |
1226 | return EFI_INVALID_PARAMETER;\r | |
1227 | }\r | |
1228 | //\r | |
1229 | // We need to fill the Virtual Screen buffer with the blt data.\r | |
1230 | // The virtual screen is upside down, as the first row is the bootom row of\r | |
1231 | // the image.\r | |
1232 | //\r | |
1233 | if (BltOperation == EfiBltVideoToBltBuffer) {\r | |
1234 | //\r | |
1235 | // Video to BltBuffer: Source is Video, destination is BltBuffer\r | |
1236 | //\r | |
1237 | if (SourceY + Height > Mode->VerticalResolution) {\r | |
1238 | return EFI_INVALID_PARAMETER;\r | |
1239 | }\r | |
1240 | \r | |
1241 | if (SourceX + Width > Mode->HorizontalResolution) {\r | |
1242 | return EFI_INVALID_PARAMETER;\r | |
1243 | }\r | |
1244 | } else {\r | |
1245 | //\r | |
1246 | // BltBuffer to Video: Source is BltBuffer, destination is Video\r | |
1247 | //\r | |
1248 | if (DestinationY + Height > Mode->VerticalResolution) {\r | |
1249 | return EFI_INVALID_PARAMETER;\r | |
1250 | }\r | |
1251 | \r | |
1252 | if (DestinationX + Width > Mode->HorizontalResolution) {\r | |
1253 | return EFI_INVALID_PARAMETER;\r | |
1254 | }\r | |
1255 | }\r | |
1256 | //\r | |
1257 | // If Delta is zero, then the entire BltBuffer is being used, so Delta\r | |
1258 | // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,\r | |
1259 | // the number of bytes in each row can be computed.\r | |
1260 | //\r | |
1261 | if (Delta == 0) {\r | |
1262 | Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);\r | |
1263 | }\r | |
1264 | //\r | |
1265 | // We have to raise to TPL Notify, so we make an atomic write the frame buffer.\r | |
1266 | // We would not want a timer based event (Cursor, ...) to come in while we are\r | |
1267 | // doing this operation.\r | |
1268 | //\r | |
1269 | OriginalTPL = gBS->RaiseTPL (TPL_NOTIFY);\r | |
1270 | \r | |
1271 | switch (BltOperation) {\r | |
1272 | case EfiBltVideoToBltBuffer:\r | |
1273 | for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY); SrcY++, DstY++) {\r | |
1274 | Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) (BltUint8 + DstY * Delta + DestinationX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r | |
1275 | //\r | |
1276 | // Shuffle the packed bytes in the hardware buffer to match EFI_GRAPHICS_OUTPUT_BLT_PIXEL\r | |
1277 | //\r | |
1278 | VbeBuffer = ((UINT8 *) VbeFrameBuffer + (SrcY * BytesPerScanLine + SourceX * VbePixelWidth));\r | |
1279 | for (DstX = DestinationX; DstX < (Width + DestinationX); DstX++) {\r | |
1280 | Pixel = VbeBuffer[0] | VbeBuffer[1] << 8 | VbeBuffer[2] << 16 | VbeBuffer[3] << 24;\r | |
1281 | Blt->Red = (UINT8) ((Pixel >> Mode->Red.Position) & Mode->Red.Mask);\r | |
1282 | Blt->Blue = (UINT8) ((Pixel >> Mode->Blue.Position) & Mode->Blue.Mask);\r | |
1283 | Blt->Green = (UINT8) ((Pixel >> Mode->Green.Position) & Mode->Green.Mask);\r | |
1284 | Blt->Reserved = 0;\r | |
1285 | Blt++;\r | |
1286 | VbeBuffer += VbePixelWidth;\r | |
1287 | }\r | |
1288 | \r | |
1289 | }\r | |
1290 | break;\r | |
1291 | \r | |
1292 | case EfiBltVideoToVideo:\r | |
1293 | for (Index = 0; Index < Height; Index++) {\r | |
1294 | if (DestinationY <= SourceY) {\r | |
1295 | SrcY = SourceY + Index;\r | |
1296 | DstY = DestinationY + Index;\r | |
1297 | } else {\r | |
1298 | SrcY = SourceY + Height - Index - 1;\r | |
1299 | DstY = DestinationY + Height - Index - 1;\r | |
1300 | }\r | |
1301 | \r | |
1302 | VbeBuffer = ((UINT8 *) VbeFrameBuffer + DstY * BytesPerScanLine + DestinationX * VbePixelWidth);\r | |
1303 | VbeBuffer1 = ((UINT8 *) VbeFrameBuffer + SrcY * BytesPerScanLine + SourceX * VbePixelWidth);\r | |
1304 | \r | |
1305 | gBS->CopyMem (\r | |
1306 | VbeBuffer,\r | |
1307 | VbeBuffer1,\r | |
1308 | TotalBytes\r | |
1309 | );\r | |
1310 | \r | |
1311 | //\r | |
1312 | // Update physical frame buffer.\r | |
1313 | //\r | |
1314 | CopyVideoBuffer (\r | |
1315 | PciIo,\r | |
1316 | VbeBuffer,\r | |
1317 | MemAddress,\r | |
1318 | DestinationX,\r | |
1319 | DstY,\r | |
1320 | TotalBytes,\r | |
1321 | VbePixelWidth,\r | |
1322 | BytesPerScanLine\r | |
1323 | );\r | |
1324 | }\r | |
1325 | break;\r | |
1326 | \r | |
1327 | case EfiBltVideoFill:\r | |
1328 | VbeBuffer = (UINT8 *) ((UINTN) VbeFrameBuffer + (DestinationY * BytesPerScanLine) + DestinationX * VbePixelWidth);\r | |
1329 | Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) BltUint8;\r | |
1330 | //\r | |
1331 | // Shuffle the RGB fields in EFI_GRAPHICS_OUTPUT_BLT_PIXEL to match the hardware buffer\r | |
1332 | //\r | |
1333 | Pixel = ((Blt->Red & Mode->Red.Mask) << Mode->Red.Position) |\r | |
1334 | (\r | |
1335 | (Blt->Green & Mode->Green.Mask) <<\r | |
1336 | Mode->Green.Position\r | |
1337 | ) |\r | |
1338 | ((Blt->Blue & Mode->Blue.Mask) << Mode->Blue.Position);\r | |
1339 | \r | |
1340 | for (Index = 0; Index < Width; Index++) {\r | |
1341 | gBS->CopyMem (\r | |
1342 | VbeBuffer,\r | |
1343 | &Pixel,\r | |
1344 | VbePixelWidth\r | |
1345 | );\r | |
1346 | VbeBuffer += VbePixelWidth;\r | |
1347 | }\r | |
1348 | \r | |
1349 | VbeBuffer = (UINT8 *) ((UINTN) VbeFrameBuffer + (DestinationY * BytesPerScanLine) + DestinationX * VbePixelWidth);\r | |
1350 | for (DstY = DestinationY + 1; DstY < (Height + DestinationY); DstY++) {\r | |
1351 | gBS->CopyMem (\r | |
1352 | (VOID *) ((UINTN) VbeFrameBuffer + (DstY * BytesPerScanLine) + DestinationX * VbePixelWidth),\r | |
1353 | VbeBuffer,\r | |
1354 | TotalBytes\r | |
1355 | );\r | |
1356 | }\r | |
1357 | \r | |
1358 | for (DstY = DestinationY; DstY < (Height + DestinationY); DstY++) {\r | |
1359 | //\r | |
1360 | // Update physical frame buffer.\r | |
1361 | //\r | |
1362 | CopyVideoBuffer (\r | |
1363 | PciIo,\r | |
1364 | VbeBuffer,\r | |
1365 | MemAddress,\r | |
1366 | DestinationX,\r | |
1367 | DstY,\r | |
1368 | TotalBytes,\r | |
1369 | VbePixelWidth,\r | |
1370 | BytesPerScanLine\r | |
1371 | );\r | |
1372 | }\r | |
1373 | break;\r | |
1374 | \r | |
1375 | case EfiBltBufferToVideo:\r | |
1376 | for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {\r | |
1377 | Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) (BltUint8 + (SrcY * Delta) + (SourceX) * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r | |
1378 | VbeBuffer = ((UINT8 *) VbeFrameBuffer + (DstY * BytesPerScanLine + DestinationX * VbePixelWidth));\r | |
1379 | for (DstX = DestinationX; DstX < (Width + DestinationX); DstX++) {\r | |
1380 | //\r | |
1381 | // Shuffle the RGB fields in EFI_GRAPHICS_OUTPUT_BLT_PIXEL to match the hardware buffer\r | |
1382 | //\r | |
1383 | Pixel = ((Blt->Red & Mode->Red.Mask) << Mode->Red.Position) |\r | |
1384 | ((Blt->Green & Mode->Green.Mask) << Mode->Green.Position) |\r | |
1385 | ((Blt->Blue & Mode->Blue.Mask) << Mode->Blue.Position);\r | |
1386 | gBS->CopyMem (\r | |
1387 | VbeBuffer,\r | |
1388 | &Pixel,\r | |
1389 | VbePixelWidth\r | |
1390 | );\r | |
1391 | Blt++;\r | |
1392 | VbeBuffer += VbePixelWidth;\r | |
1393 | }\r | |
1394 | \r | |
1395 | VbeBuffer = ((UINT8 *) VbeFrameBuffer + (DstY * BytesPerScanLine + DestinationX * VbePixelWidth));\r | |
1396 | \r | |
1397 | //\r | |
1398 | // Update physical frame buffer.\r | |
1399 | //\r | |
1400 | CopyVideoBuffer (\r | |
1401 | PciIo,\r | |
1402 | VbeBuffer,\r | |
1403 | MemAddress,\r | |
1404 | DestinationX,\r | |
1405 | DstY,\r | |
1406 | TotalBytes,\r | |
1407 | VbePixelWidth,\r | |
1408 | BytesPerScanLine\r | |
1409 | );\r | |
1410 | }\r | |
1411 | break;\r | |
1412 | \r | |
1413 | default: ;\r | |
1414 | }\r | |
1415 | \r | |
1416 | gBS->RestoreTPL (OriginalTPL);\r | |
1417 | \r | |
1418 | return EFI_SUCCESS;\r | |
1419 | }\r | |
1420 | \r | |
1421 | /**\r | |
1422 | Graphics Output protocol instance to block transfer for VBE device.\r | |
1423 | \r | |
1424 | @param This Pointer to Graphics Output protocol instance\r | |
1425 | @param BltBuffer The data to transfer to screen\r | |
1426 | @param BltOperation The operation to perform\r | |
1427 | @param SourceX The X coordinate of the source for BltOperation\r | |
1428 | @param SourceY The Y coordinate of the source for BltOperation\r | |
1429 | @param DestinationX The X coordinate of the destination for\r | |
1430 | BltOperation\r | |
1431 | @param DestinationY The Y coordinate of the destination for\r | |
1432 | BltOperation\r | |
1433 | @param Width The width of a rectangle in the blt rectangle in\r | |
1434 | pixels\r | |
1435 | @param Height The height of a rectangle in the blt rectangle in\r | |
1436 | pixels\r | |
1437 | @param Delta Not used for EfiBltVideoFill and\r | |
1438 | EfiBltVideoToVideo operation. If a Delta of 0 is\r | |
1439 | used, the entire BltBuffer will be operated on. If\r | |
1440 | a subrectangle of the BltBuffer is used, then\r | |
1441 | Delta represents the number of bytes in a row of\r | |
1442 | the BltBuffer.\r | |
1443 | \r | |
1444 | @retval EFI_INVALID_PARAMETER Invalid parameter passed in\r | |
1445 | @retval EFI_SUCCESS Blt operation success\r | |
1446 | \r | |
1447 | **/\r | |
1448 | EFI_STATUS\r | |
1449 | EFIAPI\r | |
1450 | FbGopGraphicsOutputVbeBlt (\r | |
1451 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,\r | |
1452 | IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL\r | |
1453 | IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,\r | |
1454 | IN UINTN SourceX,\r | |
1455 | IN UINTN SourceY,\r | |
1456 | IN UINTN DestinationX,\r | |
1457 | IN UINTN DestinationY,\r | |
1458 | IN UINTN Width,\r | |
1459 | IN UINTN Height,\r | |
1460 | IN UINTN Delta\r | |
1461 | )\r | |
1462 | {\r | |
1463 | FB_VIDEO_DEV *FbGopPrivate;\r | |
1464 | FB_VIDEO_MODE_DATA *Mode;\r | |
1465 | \r | |
1466 | if (This == NULL) {\r | |
1467 | return EFI_INVALID_PARAMETER;\r | |
1468 | }\r | |
1469 | \r | |
1470 | FbGopPrivate = FB_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);\r | |
1471 | Mode = &FbGopPrivate->ModeData[This->Mode->Mode];\r | |
1472 | \r | |
1473 | return FbGopVbeBltWorker (\r | |
1474 | FbGopPrivate,\r | |
1475 | BltBuffer,\r | |
1476 | BltOperation,\r | |
1477 | SourceX,\r | |
1478 | SourceY,\r | |
1479 | DestinationX,\r | |
1480 | DestinationY,\r | |
1481 | Width,\r | |
1482 | Height,\r | |
1483 | Delta,\r | |
1484 | Mode\r | |
1485 | );\r | |
1486 | }\r | |
1487 | \r | |
1488 | \r | |
1489 | /**\r | |
1490 | The user Entry Point for module UefiFbGop. The user code starts with this function.\r | |
1491 | \r | |
1492 | @param[in] ImageHandle The firmware allocated handle for the EFI image.\r | |
1493 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
1494 | \r | |
1495 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
1496 | @retval other Some error occurs when executing this entry point.\r | |
1497 | \r | |
1498 | **/\r | |
1499 | EFI_STATUS\r | |
1500 | EFIAPI\r | |
1501 | FbGopEntryPoint(\r | |
1502 | IN EFI_HANDLE ImageHandle,\r | |
1503 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1504 | )\r | |
1505 | {\r | |
1506 | EFI_STATUS Status;\r | |
1507 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
1508 | \r | |
1509 | //\r | |
1510 | // Find the frame buffer information guid hob\r | |
1511 | //\r | |
1512 | GuidHob = GetFirstGuidHob (&gUefiFrameBufferInfoGuid);\r | |
1513 | if (GuidHob != NULL) { \r | |
1514 | //\r | |
1515 | // Install driver model protocol(s).\r | |
1516 | //\r | |
1517 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
1518 | ImageHandle,\r | |
1519 | SystemTable,\r | |
1520 | &gFbGopDriverBinding,\r | |
1521 | ImageHandle,\r | |
1522 | &gFbGopComponentName,\r | |
1523 | &gFbGopComponentName2\r | |
1524 | );\r | |
1525 | ASSERT_EFI_ERROR (Status);\r | |
1526 | } else {\r | |
1527 | DEBUG ((EFI_D_ERROR, "No FrameBuffer information from coreboot. NO GOP driver !!!\n"));\r | |
1528 | Status = EFI_ABORTED;\r | |
1529 | }\r | |
1530 | return Status; \r | |
1531 | }\r | |
1532 | \r |