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3db51098 | 1 | /**@file\r |
2 | This driver produces a VGA console.\r | |
3 | \r | |
4 | Copyright (c) 2006, 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 | |
12 | \r | |
13 | **/\r | |
e081218d | 14 | \r |
15 | #include "VgaClass.h"\r | |
16 | \r | |
17 | //\r | |
18 | // EFI Driver Binding Protocol for the VGA Class Driver\r | |
19 | //\r | |
20 | EFI_DRIVER_BINDING_PROTOCOL gVgaClassDriverBinding = {\r | |
21 | VgaClassDriverBindingSupported,\r | |
22 | VgaClassDriverBindingStart,\r | |
23 | VgaClassDriverBindingStop,\r | |
24 | 0xa,\r | |
25 | NULL,\r | |
26 | NULL\r | |
27 | };\r | |
28 | \r | |
29 | /**\r | |
30 | The user Entry Point for module VgaClass. The user code starts with this function.\r | |
31 | \r | |
32 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r | |
33 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
34 | \r | |
35 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
36 | @retval other Some error occurs when executing this entry point.\r | |
37 | \r | |
38 | **/\r | |
39 | EFI_STATUS\r | |
40 | EFIAPI\r | |
41 | InitializeVgaClass(\r | |
42 | IN EFI_HANDLE ImageHandle,\r | |
43 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
44 | )\r | |
45 | {\r | |
46 | EFI_STATUS Status;\r | |
47 | \r | |
48 | //\r | |
49 | // Install driver model protocol(s).\r | |
50 | //\r | |
9d64ff86 | 51 | Status = EfiLibInstallDriverBindingComponentName2 (\r |
e081218d | 52 | ImageHandle,\r |
53 | SystemTable,\r | |
54 | &gVgaClassDriverBinding,\r | |
55 | ImageHandle,\r | |
56 | &gVgaClassComponentName,\r | |
9d64ff86 | 57 | &gVgaClassComponentName2\r |
e081218d | 58 | );\r |
59 | ASSERT_EFI_ERROR (Status);\r | |
60 | \r | |
61 | \r | |
62 | return Status;\r | |
63 | }\r | |
64 | \r | |
65 | //\r | |
66 | // Local variables\r | |
67 | //\r | |
68 | static CHAR16 CrLfString[3] = { CHAR_CARRIAGE_RETURN, CHAR_LINEFEED, CHAR_NULL };\r | |
69 | \r | |
70 | typedef struct {\r | |
71 | CHAR16 Unicode;\r | |
72 | CHAR8 PcAnsi;\r | |
73 | CHAR8 Ascii;\r | |
74 | } UNICODE_TO_CHAR;\r | |
75 | \r | |
76 | //\r | |
77 | // This list is used to define the valid extend chars.\r | |
78 | // It also provides a mapping from Unicode to PCANSI or\r | |
79 | // ASCII. The ASCII mapping we just made up.\r | |
80 | //\r | |
81 | //\r | |
82 | STATIC UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = {\r | |
83 | {\r | |
84 | BOXDRAW_HORIZONTAL,\r | |
85 | 0xc4,\r | |
86 | L'-'\r | |
87 | },\r | |
88 | {\r | |
89 | BOXDRAW_VERTICAL,\r | |
90 | 0xb3,\r | |
91 | L'|'\r | |
92 | },\r | |
93 | {\r | |
94 | BOXDRAW_DOWN_RIGHT,\r | |
95 | 0xda,\r | |
96 | L'/'\r | |
97 | },\r | |
98 | {\r | |
99 | BOXDRAW_DOWN_LEFT,\r | |
100 | 0xbf,\r | |
101 | L'\\'\r | |
102 | },\r | |
103 | {\r | |
104 | BOXDRAW_UP_RIGHT,\r | |
105 | 0xc0,\r | |
106 | L'\\'\r | |
107 | },\r | |
108 | {\r | |
109 | BOXDRAW_UP_LEFT,\r | |
110 | 0xd9,\r | |
111 | L'/'\r | |
112 | },\r | |
113 | {\r | |
114 | BOXDRAW_VERTICAL_RIGHT,\r | |
115 | 0xc3,\r | |
116 | L'|'\r | |
117 | },\r | |
118 | {\r | |
119 | BOXDRAW_VERTICAL_LEFT,\r | |
120 | 0xb4,\r | |
121 | L'|'\r | |
122 | },\r | |
123 | {\r | |
124 | BOXDRAW_DOWN_HORIZONTAL,\r | |
125 | 0xc2,\r | |
126 | L'+'\r | |
127 | },\r | |
128 | {\r | |
129 | BOXDRAW_UP_HORIZONTAL,\r | |
130 | 0xc1,\r | |
131 | L'+'\r | |
132 | },\r | |
133 | {\r | |
134 | BOXDRAW_VERTICAL_HORIZONTAL,\r | |
135 | 0xc5,\r | |
136 | L'+'\r | |
137 | },\r | |
138 | {\r | |
139 | BOXDRAW_DOUBLE_HORIZONTAL,\r | |
140 | 0xcd,\r | |
141 | L'-'\r | |
142 | },\r | |
143 | {\r | |
144 | BOXDRAW_DOUBLE_VERTICAL,\r | |
145 | 0xba,\r | |
146 | L'|'\r | |
147 | },\r | |
148 | {\r | |
149 | BOXDRAW_DOWN_RIGHT_DOUBLE,\r | |
150 | 0xd5,\r | |
151 | L'/'\r | |
152 | },\r | |
153 | {\r | |
154 | BOXDRAW_DOWN_DOUBLE_RIGHT,\r | |
155 | 0xd6,\r | |
156 | L'/'\r | |
157 | },\r | |
158 | {\r | |
159 | BOXDRAW_DOUBLE_DOWN_RIGHT,\r | |
160 | 0xc9,\r | |
161 | L'/'\r | |
162 | },\r | |
163 | {\r | |
164 | BOXDRAW_DOWN_LEFT_DOUBLE,\r | |
165 | 0xb8,\r | |
166 | L'\\'\r | |
167 | },\r | |
168 | {\r | |
169 | BOXDRAW_DOWN_DOUBLE_LEFT,\r | |
170 | 0xb7,\r | |
171 | L'\\'\r | |
172 | },\r | |
173 | {\r | |
174 | BOXDRAW_DOUBLE_DOWN_LEFT,\r | |
175 | 0xbb,\r | |
176 | L'\\'\r | |
177 | },\r | |
178 | {\r | |
179 | BOXDRAW_UP_RIGHT_DOUBLE,\r | |
180 | 0xd4,\r | |
181 | L'\\'\r | |
182 | },\r | |
183 | {\r | |
184 | BOXDRAW_UP_DOUBLE_RIGHT,\r | |
185 | 0xd3,\r | |
186 | L'\\'\r | |
187 | },\r | |
188 | {\r | |
189 | BOXDRAW_DOUBLE_UP_RIGHT,\r | |
190 | 0xc8,\r | |
191 | L'\\'\r | |
192 | },\r | |
193 | {\r | |
194 | BOXDRAW_UP_LEFT_DOUBLE,\r | |
195 | 0xbe,\r | |
196 | L'/'\r | |
197 | },\r | |
198 | {\r | |
199 | BOXDRAW_UP_DOUBLE_LEFT,\r | |
200 | 0xbd,\r | |
201 | L'/'\r | |
202 | },\r | |
203 | {\r | |
204 | BOXDRAW_DOUBLE_UP_LEFT,\r | |
205 | 0xbc,\r | |
206 | L'/'\r | |
207 | },\r | |
208 | {\r | |
209 | BOXDRAW_VERTICAL_RIGHT_DOUBLE,\r | |
210 | 0xc6,\r | |
211 | L'|'\r | |
212 | },\r | |
213 | {\r | |
214 | BOXDRAW_VERTICAL_DOUBLE_RIGHT,\r | |
215 | 0xc7,\r | |
216 | L'|'\r | |
217 | },\r | |
218 | {\r | |
219 | BOXDRAW_DOUBLE_VERTICAL_RIGHT,\r | |
220 | 0xcc,\r | |
221 | L'|'\r | |
222 | },\r | |
223 | {\r | |
224 | BOXDRAW_VERTICAL_LEFT_DOUBLE,\r | |
225 | 0xb5,\r | |
226 | L'|'\r | |
227 | },\r | |
228 | {\r | |
229 | BOXDRAW_VERTICAL_DOUBLE_LEFT,\r | |
230 | 0xb6,\r | |
231 | L'|'\r | |
232 | },\r | |
233 | {\r | |
234 | BOXDRAW_DOUBLE_VERTICAL_LEFT,\r | |
235 | 0xb9,\r | |
236 | L'|'\r | |
237 | },\r | |
238 | {\r | |
239 | BOXDRAW_DOWN_HORIZONTAL_DOUBLE,\r | |
240 | 0xd1,\r | |
241 | L'+'\r | |
242 | },\r | |
243 | {\r | |
244 | BOXDRAW_DOWN_DOUBLE_HORIZONTAL,\r | |
245 | 0xd2,\r | |
246 | L'+'\r | |
247 | },\r | |
248 | {\r | |
249 | BOXDRAW_DOUBLE_DOWN_HORIZONTAL,\r | |
250 | 0xcb,\r | |
251 | L'+'\r | |
252 | },\r | |
253 | {\r | |
254 | BOXDRAW_UP_HORIZONTAL_DOUBLE,\r | |
255 | 0xcf,\r | |
256 | L'+'\r | |
257 | },\r | |
258 | {\r | |
259 | BOXDRAW_UP_DOUBLE_HORIZONTAL,\r | |
260 | 0xd0,\r | |
261 | L'+'\r | |
262 | },\r | |
263 | {\r | |
264 | BOXDRAW_DOUBLE_UP_HORIZONTAL,\r | |
265 | 0xca,\r | |
266 | L'+'\r | |
267 | },\r | |
268 | {\r | |
269 | BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE,\r | |
270 | 0xd8,\r | |
271 | L'+'\r | |
272 | },\r | |
273 | {\r | |
274 | BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL,\r | |
275 | 0xd7,\r | |
276 | L'+'\r | |
277 | },\r | |
278 | {\r | |
279 | BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL,\r | |
280 | 0xce,\r | |
281 | L'+'\r | |
282 | },\r | |
283 | \r | |
284 | {\r | |
285 | BLOCKELEMENT_FULL_BLOCK,\r | |
286 | 0xdb,\r | |
287 | L'*'\r | |
288 | },\r | |
289 | {\r | |
290 | BLOCKELEMENT_LIGHT_SHADE,\r | |
291 | 0xb0,\r | |
292 | L'+'\r | |
293 | },\r | |
294 | \r | |
295 | {\r | |
296 | GEOMETRICSHAPE_UP_TRIANGLE,\r | |
297 | 0x1e,\r | |
298 | L'^'\r | |
299 | },\r | |
300 | {\r | |
301 | GEOMETRICSHAPE_RIGHT_TRIANGLE,\r | |
302 | 0x10,\r | |
303 | L'>'\r | |
304 | },\r | |
305 | {\r | |
306 | GEOMETRICSHAPE_DOWN_TRIANGLE,\r | |
307 | 0x1f,\r | |
308 | L'v'\r | |
309 | },\r | |
310 | {\r | |
311 | GEOMETRICSHAPE_LEFT_TRIANGLE,\r | |
312 | 0x11,\r | |
313 | L'<'\r | |
314 | },\r | |
315 | \r | |
316 | {\r | |
317 | ARROW_LEFT,\r | |
318 | 0x3c,\r | |
319 | L'<'\r | |
320 | },\r | |
321 | \r | |
322 | {\r | |
323 | ARROW_UP,\r | |
324 | 0x18,\r | |
325 | L'^'\r | |
326 | },\r | |
327 | \r | |
328 | {\r | |
329 | ARROW_RIGHT,\r | |
330 | 0x3e,\r | |
331 | L'>'\r | |
332 | },\r | |
333 | \r | |
334 | {\r | |
335 | ARROW_DOWN,\r | |
336 | 0x19,\r | |
337 | L'v'\r | |
338 | },\r | |
339 | \r | |
340 | {\r | |
341 | 0x0000,\r | |
342 | 0x00,\r | |
343 | 0x00\r | |
344 | }\r | |
345 | };\r | |
346 | \r | |
347 | //\r | |
348 | // Private worker functions\r | |
349 | //\r | |
350 | STATIC\r | |
351 | VOID\r | |
352 | SetVideoCursorPosition (\r | |
353 | IN VGA_CLASS_DEV *VgaClassDev,\r | |
354 | IN UINTN Column,\r | |
355 | IN UINTN Row,\r | |
356 | IN UINTN MaxColumn\r | |
357 | );\r | |
358 | \r | |
359 | STATIC\r | |
360 | VOID\r | |
361 | WriteCrtc (\r | |
362 | IN VGA_CLASS_DEV *VgaClassDev,\r | |
363 | IN UINT16 Address,\r | |
364 | IN UINT8 Data\r | |
365 | );\r | |
366 | \r | |
367 | STATIC\r | |
368 | BOOLEAN\r | |
369 | LibIsValidTextGraphics (\r | |
370 | IN CHAR16 Graphic,\r | |
371 | OUT CHAR8 *PcAnsi, OPTIONAL\r | |
372 | OUT CHAR8 *Ascii OPTIONAL\r | |
373 | );\r | |
374 | \r | |
375 | STATIC\r | |
376 | BOOLEAN\r | |
377 | IsValidAscii (\r | |
378 | IN CHAR16 Ascii\r | |
379 | );\r | |
380 | \r | |
381 | STATIC\r | |
382 | BOOLEAN\r | |
383 | IsValidEfiCntlChar (\r | |
384 | IN CHAR16 c\r | |
385 | );\r | |
386 | \r | |
387 | EFI_STATUS\r | |
388 | EFIAPI\r | |
389 | VgaClassDriverBindingSupported (\r | |
390 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
391 | IN EFI_HANDLE Controller,\r | |
392 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
393 | )\r | |
394 | /*++\r | |
395 | \r | |
396 | Routine Description:\r | |
397 | \r | |
398 | Supported.\r | |
399 | \r | |
400 | Arguments:\r | |
401 | \r | |
402 | (Standard DriverBinding Protocol Supported() function)\r | |
403 | \r | |
404 | Returns:\r | |
405 | \r | |
406 | EFI_STATUS\r | |
407 | \r | |
408 | --*/\r | |
409 | // GC_TODO: This - add argument and description to function comment\r | |
410 | // GC_TODO: Controller - add argument and description to function comment\r | |
411 | // GC_TODO: RemainingDevicePath - add argument and description to function comment\r | |
412 | {\r | |
413 | EFI_STATUS Status;\r | |
414 | EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;\r | |
415 | \r | |
416 | //\r | |
417 | // Open the IO Abstraction(s) needed to perform the supported test\r | |
418 | //\r | |
419 | Status = gBS->OpenProtocol (\r | |
420 | Controller,\r | |
421 | &gEfiVgaMiniPortProtocolGuid,\r | |
422 | (VOID **) &VgaMiniPort,\r | |
423 | This->DriverBindingHandle,\r | |
424 | Controller,\r | |
425 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
426 | );\r | |
427 | if (EFI_ERROR (Status)) {\r | |
428 | return Status;\r | |
429 | }\r | |
430 | //\r | |
431 | // Open the IO Abstraction(s) needed to perform the supported test\r | |
432 | //\r | |
433 | Status = gBS->OpenProtocol (\r | |
434 | Controller,\r | |
435 | &gEfiPciIoProtocolGuid,\r | |
436 | NULL,\r | |
437 | This->DriverBindingHandle,\r | |
438 | Controller,\r | |
439 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
440 | );\r | |
441 | if (EFI_ERROR (Status)) {\r | |
442 | return Status;\r | |
443 | }\r | |
444 | \r | |
445 | return Status;\r | |
446 | }\r | |
447 | \r | |
448 | EFI_STATUS\r | |
449 | EFIAPI\r | |
450 | VgaClassDriverBindingStart (\r | |
451 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
452 | IN EFI_HANDLE Controller,\r | |
453 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
454 | )\r | |
455 | /*++\r | |
456 | \r | |
457 | Routine Description:\r | |
458 | \r | |
459 | Layers the Simple Text Output Protocol on top of the \r | |
460 | VGA Mini Port Protocol\r | |
461 | \r | |
462 | Arguments:\r | |
463 | \r | |
464 | (Standard DriverBinding Protocol Start() function)\r | |
465 | \r | |
466 | Returns:\r | |
467 | \r | |
468 | EFI_STATUS\r | |
469 | \r | |
470 | --*/\r | |
471 | // GC_TODO: This - add argument and description to function comment\r | |
472 | // GC_TODO: Controller - add argument and description to function comment\r | |
473 | // GC_TODO: RemainingDevicePath - add argument and description to function comment\r | |
474 | // GC_TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r | |
475 | {\r | |
476 | EFI_STATUS Status;\r | |
477 | EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;\r | |
478 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
479 | VGA_CLASS_DEV *VgaClassPrivate;\r | |
480 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
481 | \r | |
482 | Status = gBS->HandleProtocol (\r | |
483 | Controller,\r | |
484 | &gEfiDevicePathProtocolGuid,\r | |
485 | (VOID **) &DevicePath\r | |
486 | );\r | |
487 | if (EFI_ERROR (Status)) {\r | |
488 | return Status;\r | |
489 | }\r | |
490 | //\r | |
491 | // Report that VGA Class driver is being enabled\r | |
492 | //\r | |
493 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
494 | EFI_PROGRESS_CODE,\r | |
495 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_ENABLE,\r | |
496 | DevicePath\r | |
497 | );\r | |
498 | \r | |
499 | //\r | |
500 | // Open the IO Abstraction(s) needed\r | |
501 | //\r | |
502 | Status = gBS->OpenProtocol (\r | |
503 | Controller,\r | |
504 | &gEfiPciIoProtocolGuid,\r | |
505 | (VOID **) &PciIo,\r | |
506 | This->DriverBindingHandle,\r | |
507 | Controller,\r | |
508 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
509 | );\r | |
510 | if (EFI_ERROR (Status)) {\r | |
511 | return Status;\r | |
512 | }\r | |
513 | \r | |
514 | Status = gBS->OpenProtocol (\r | |
515 | Controller,\r | |
516 | &gEfiVgaMiniPortProtocolGuid,\r | |
517 | (VOID **) &VgaMiniPort,\r | |
518 | This->DriverBindingHandle,\r | |
519 | Controller,\r | |
520 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
521 | );\r | |
522 | if (EFI_ERROR (Status)) {\r | |
523 | return Status;\r | |
524 | }\r | |
525 | //\r | |
526 | // Allocate the private device structure\r | |
527 | //\r | |
528 | Status = gBS->AllocatePool (\r | |
529 | EfiBootServicesData,\r | |
530 | sizeof (VGA_CLASS_DEV),\r | |
531 | (VOID **) &VgaClassPrivate\r | |
532 | );\r | |
533 | if (EFI_ERROR (Status)) {\r | |
534 | gBS->CloseProtocol (\r | |
535 | Controller,\r | |
536 | &gEfiVgaMiniPortProtocolGuid,\r | |
537 | This->DriverBindingHandle,\r | |
538 | Controller\r | |
539 | );\r | |
540 | return EFI_OUT_OF_RESOURCES;\r | |
541 | }\r | |
542 | \r | |
543 | ZeroMem (VgaClassPrivate, sizeof (VGA_CLASS_DEV));\r | |
544 | \r | |
545 | //\r | |
546 | // Initialize the private device structure\r | |
547 | //\r | |
548 | VgaClassPrivate->Signature = VGA_CLASS_DEV_SIGNATURE;\r | |
549 | VgaClassPrivate->Handle = Controller;\r | |
550 | VgaClassPrivate->VgaMiniPort = VgaMiniPort;\r | |
551 | VgaClassPrivate->PciIo = PciIo;\r | |
552 | \r | |
553 | VgaClassPrivate->SimpleTextOut.Reset = VgaClassReset;\r | |
554 | VgaClassPrivate->SimpleTextOut.OutputString = VgaClassOutputString;\r | |
555 | VgaClassPrivate->SimpleTextOut.TestString = VgaClassTestString;\r | |
556 | VgaClassPrivate->SimpleTextOut.ClearScreen = VgaClassClearScreen;\r | |
557 | VgaClassPrivate->SimpleTextOut.SetAttribute = VgaClassSetAttribute;\r | |
558 | VgaClassPrivate->SimpleTextOut.SetCursorPosition = VgaClassSetCursorPosition;\r | |
559 | VgaClassPrivate->SimpleTextOut.EnableCursor = VgaClassEnableCursor;\r | |
560 | VgaClassPrivate->SimpleTextOut.QueryMode = VgaClassQueryMode;\r | |
561 | VgaClassPrivate->SimpleTextOut.SetMode = VgaClassSetMode;\r | |
562 | \r | |
563 | VgaClassPrivate->SimpleTextOut.Mode = &VgaClassPrivate->SimpleTextOutputMode;\r | |
564 | VgaClassPrivate->SimpleTextOutputMode.MaxMode = VgaMiniPort->MaxMode;\r | |
565 | VgaClassPrivate->DevicePath = DevicePath;\r | |
566 | \r | |
567 | Status = VgaClassPrivate->SimpleTextOut.SetAttribute (\r | |
568 | &VgaClassPrivate->SimpleTextOut,\r | |
569 | EFI_TEXT_ATTR (EFI_WHITE,\r | |
570 | EFI_BLACK)\r | |
571 | );\r | |
572 | if (EFI_ERROR (Status)) {\r | |
573 | goto ErrorExit;\r | |
574 | }\r | |
575 | \r | |
576 | Status = VgaClassPrivate->SimpleTextOut.Reset (\r | |
577 | &VgaClassPrivate->SimpleTextOut,\r | |
578 | FALSE\r | |
579 | );\r | |
580 | if (EFI_ERROR (Status)) {\r | |
581 | goto ErrorExit;\r | |
582 | }\r | |
583 | \r | |
584 | Status = VgaClassPrivate->SimpleTextOut.EnableCursor (\r | |
585 | &VgaClassPrivate->SimpleTextOut,\r | |
586 | TRUE\r | |
587 | );\r | |
588 | if (EFI_ERROR (Status)) {\r | |
589 | goto ErrorExit;\r | |
590 | }\r | |
591 | \r | |
592 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
593 | &Controller,\r | |
594 | &gEfiSimpleTextOutProtocolGuid,\r | |
595 | &VgaClassPrivate->SimpleTextOut,\r | |
596 | NULL\r | |
597 | );\r | |
598 | \r | |
599 | return Status;\r | |
600 | \r | |
601 | ErrorExit:\r | |
602 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
603 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
604 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_CONTROLLER_ERROR,\r | |
605 | DevicePath\r | |
606 | );\r | |
607 | \r | |
608 | return Status;\r | |
609 | \r | |
610 | }\r | |
611 | \r | |
612 | EFI_STATUS\r | |
613 | EFIAPI\r | |
614 | VgaClassDriverBindingStop (\r | |
615 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
616 | IN EFI_HANDLE Controller,\r | |
617 | IN UINTN NumberOfChildren,\r | |
618 | IN EFI_HANDLE *ChildHandleBuffer\r | |
619 | )\r | |
620 | /*++\r | |
621 | \r | |
622 | Routine Description:\r | |
623 | \r | |
624 | Stop.\r | |
625 | \r | |
626 | Arguments:\r | |
627 | \r | |
628 | (Standard DriverBinding Protocol Stop() function)\r | |
629 | \r | |
630 | Returns:\r | |
631 | \r | |
632 | EFI_STATUS\r | |
633 | \r | |
634 | --*/\r | |
635 | // GC_TODO: This - add argument and description to function comment\r | |
636 | // GC_TODO: Controller - add argument and description to function comment\r | |
637 | // GC_TODO: NumberOfChildren - add argument and description to function comment\r | |
638 | // GC_TODO: ChildHandleBuffer - add argument and description to function comment\r | |
639 | // GC_TODO: EFI_SUCCESS - add return value to function comment\r | |
640 | {\r | |
641 | EFI_STATUS Status;\r | |
642 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOut;\r | |
643 | VGA_CLASS_DEV *VgaClassPrivate;\r | |
644 | \r | |
645 | Status = gBS->OpenProtocol (\r | |
646 | Controller,\r | |
647 | &gEfiSimpleTextOutProtocolGuid,\r | |
648 | (VOID **) &SimpleTextOut,\r | |
649 | This->DriverBindingHandle,\r | |
650 | Controller,\r | |
651 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
652 | );\r | |
653 | if (EFI_ERROR (Status)) {\r | |
654 | return Status;\r | |
655 | }\r | |
656 | \r | |
657 | VgaClassPrivate = VGA_CLASS_DEV_FROM_THIS (SimpleTextOut);\r | |
658 | \r | |
659 | //\r | |
660 | // Report that VGA Class driver is being disabled\r | |
661 | //\r | |
662 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
663 | EFI_PROGRESS_CODE,\r | |
664 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_DISABLE,\r | |
665 | VgaClassPrivate->DevicePath\r | |
666 | );\r | |
667 | \r | |
668 | Status = gBS->UninstallProtocolInterface (\r | |
669 | Controller,\r | |
670 | &gEfiSimpleTextOutProtocolGuid,\r | |
671 | &VgaClassPrivate->SimpleTextOut\r | |
672 | );\r | |
673 | if (EFI_ERROR (Status)) {\r | |
674 | return Status;\r | |
675 | }\r | |
676 | //\r | |
677 | // Release PCI I/O and VGA Mini Port Protocols on the controller handle.\r | |
678 | //\r | |
679 | gBS->CloseProtocol (\r | |
680 | Controller,\r | |
681 | &gEfiPciIoProtocolGuid,\r | |
682 | This->DriverBindingHandle,\r | |
683 | Controller\r | |
684 | );\r | |
685 | \r | |
686 | gBS->CloseProtocol (\r | |
687 | Controller,\r | |
688 | &gEfiVgaMiniPortProtocolGuid,\r | |
689 | This->DriverBindingHandle,\r | |
690 | Controller\r | |
691 | );\r | |
692 | \r | |
693 | gBS->FreePool (VgaClassPrivate);\r | |
694 | \r | |
695 | return EFI_SUCCESS;\r | |
696 | }\r | |
697 | //\r | |
698 | // Simple Text Output Protocol Functions\r | |
699 | //\r | |
700 | EFI_STATUS\r | |
701 | EFIAPI\r | |
702 | VgaClassReset (\r | |
703 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
704 | IN BOOLEAN ExtendedVerification\r | |
705 | )\r | |
706 | /*++\r | |
707 | \r | |
708 | Routine Description:\r | |
709 | \r | |
710 | GC_TODO: Add function description\r | |
711 | \r | |
712 | Arguments:\r | |
713 | \r | |
714 | This - GC_TODO: add argument description\r | |
715 | ExtendedVerification - GC_TODO: add argument description\r | |
716 | \r | |
717 | Returns:\r | |
718 | \r | |
719 | GC_TODO: add return values\r | |
720 | \r | |
721 | --*/\r | |
722 | {\r | |
723 | EFI_STATUS Status;\r | |
724 | VGA_CLASS_DEV *VgaClassPrivate;\r | |
725 | \r | |
726 | VgaClassPrivate = VGA_CLASS_DEV_FROM_THIS (This);\r | |
727 | \r | |
728 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
729 | EFI_PROGRESS_CODE,\r | |
730 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_RESET,\r | |
731 | VgaClassPrivate->DevicePath\r | |
732 | );\r | |
733 | \r | |
734 | This->SetAttribute (This, EFI_TEXT_ATTR (This->Mode->Attribute & 0x0F, EFI_BACKGROUND_BLACK));\r | |
735 | \r | |
736 | Status = This->SetMode (This, 0);\r | |
737 | if (EFI_ERROR (Status)) {\r | |
738 | return Status;\r | |
739 | }\r | |
740 | \r | |
741 | return This->ClearScreen (This);\r | |
742 | }\r | |
743 | \r | |
744 | EFI_STATUS\r | |
745 | EFIAPI\r | |
746 | VgaClassOutputString (\r | |
747 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
748 | IN CHAR16 *WString\r | |
749 | )\r | |
750 | /*++\r | |
751 | \r | |
752 | Routine Description:\r | |
753 | \r | |
754 | GC_TODO: Add function description\r | |
755 | \r | |
756 | Arguments:\r | |
757 | \r | |
758 | This - GC_TODO: add argument description\r | |
759 | WString - GC_TODO: add argument description\r | |
760 | \r | |
761 | Returns:\r | |
762 | \r | |
763 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
764 | \r | |
765 | --*/\r | |
766 | {\r | |
767 | EFI_STATUS Status;\r | |
768 | VGA_CLASS_DEV *VgaClassDev;\r | |
769 | EFI_SIMPLE_TEXT_OUTPUT_MODE *Mode;\r | |
770 | UINTN MaxColumn;\r | |
771 | UINTN MaxRow;\r | |
772 | UINT32 VideoChar;\r | |
773 | CHAR8 GraphicChar;\r | |
774 | \r | |
775 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r | |
776 | \r | |
777 | Mode = This->Mode;\r | |
778 | \r | |
779 | Status = This->QueryMode (\r | |
780 | This,\r | |
781 | Mode->Mode,\r | |
782 | &MaxColumn,\r | |
783 | &MaxRow\r | |
784 | );\r | |
785 | if (EFI_ERROR (Status)) {\r | |
786 | return Status;\r | |
787 | }\r | |
788 | \r | |
789 | for (; *WString != CHAR_NULL; WString++) {\r | |
790 | \r | |
791 | switch (*WString) {\r | |
792 | case CHAR_BACKSPACE:\r | |
793 | if (Mode->CursorColumn > 0) {\r | |
794 | Mode->CursorColumn--;\r | |
795 | }\r | |
796 | break;\r | |
797 | \r | |
798 | case CHAR_LINEFEED:\r | |
799 | if (Mode->CursorRow == (INT32) (MaxRow - 1)) {\r | |
800 | //\r | |
801 | // Scroll the screen by copying the contents\r | |
802 | // of the VGA display up one line\r | |
803 | //\r | |
804 | VgaClassDev->PciIo->CopyMem (\r | |
805 | VgaClassDev->PciIo,\r | |
806 | EfiPciIoWidthUint32,\r | |
807 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r | |
808 | VgaClassDev->VgaMiniPort->VgaMemoryOffset,\r | |
809 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r | |
810 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + MaxColumn * 2,\r | |
811 | ((MaxRow - 1) * MaxColumn) >> 1\r | |
812 | );\r | |
813 | \r | |
814 | //\r | |
815 | // Print Blank Line of spaces with the current color attributes\r | |
816 | //\r | |
817 | VideoChar = (Mode->Attribute << 8) | ' ';\r | |
818 | VideoChar = (VideoChar << 16) | VideoChar;\r | |
819 | VgaClassDev->PciIo->Mem.Write (\r | |
820 | VgaClassDev->PciIo,\r | |
821 | EfiPciIoWidthFillUint32,\r | |
822 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r | |
823 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + (MaxRow - 1) * MaxColumn * 2,\r | |
824 | MaxColumn >> 1,\r | |
825 | &VideoChar\r | |
826 | );\r | |
827 | }\r | |
828 | \r | |
829 | if (Mode->CursorRow < (INT32) (MaxRow - 1)) {\r | |
830 | Mode->CursorRow++;\r | |
831 | }\r | |
832 | break;\r | |
833 | \r | |
834 | case CHAR_CARRIAGE_RETURN:\r | |
835 | Mode->CursorColumn = 0;\r | |
836 | break;\r | |
837 | \r | |
838 | default:\r | |
839 | if (!LibIsValidTextGraphics (*WString, &GraphicChar, NULL)) {\r | |
840 | //\r | |
841 | // Just convert to ASCII\r | |
842 | //\r | |
843 | GraphicChar = (CHAR8) *WString;\r | |
844 | if (!IsValidAscii (GraphicChar)) {\r | |
845 | //\r | |
846 | // Keep the API from supporting PCANSI Graphics chars\r | |
847 | //\r | |
848 | GraphicChar = '?';\r | |
849 | }\r | |
850 | }\r | |
851 | \r | |
852 | VideoChar = (Mode->Attribute << 8) | GraphicChar;\r | |
853 | VgaClassDev->PciIo->Mem.Write (\r | |
854 | VgaClassDev->PciIo,\r | |
855 | EfiPciIoWidthUint16,\r | |
856 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r | |
857 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + ((Mode->CursorRow * MaxColumn + Mode->CursorColumn) * 2),\r | |
858 | 1,\r | |
859 | &VideoChar\r | |
860 | );\r | |
861 | \r | |
862 | if (Mode->CursorColumn >= (INT32) (MaxColumn - 1)) {\r | |
863 | This->OutputString (This, CrLfString);\r | |
864 | } else {\r | |
865 | Mode->CursorColumn++;\r | |
866 | }\r | |
867 | break;\r | |
868 | }\r | |
869 | }\r | |
870 | \r | |
871 | SetVideoCursorPosition (\r | |
872 | VgaClassDev,\r | |
873 | (UINTN) Mode->CursorColumn,\r | |
874 | (UINTN) Mode->CursorRow,\r | |
875 | MaxColumn\r | |
876 | );\r | |
877 | \r | |
878 | return EFI_SUCCESS;\r | |
879 | }\r | |
880 | \r | |
881 | EFI_STATUS\r | |
882 | EFIAPI\r | |
883 | VgaClassTestString (\r | |
884 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
885 | IN CHAR16 *WString\r | |
886 | )\r | |
887 | /*++\r | |
888 | \r | |
889 | Routine Description:\r | |
890 | \r | |
891 | GC_TODO: Add function description\r | |
892 | \r | |
893 | Arguments:\r | |
894 | \r | |
895 | This - GC_TODO: add argument description\r | |
896 | WString - GC_TODO: add argument description\r | |
897 | \r | |
898 | Returns:\r | |
899 | \r | |
900 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r | |
901 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
902 | \r | |
903 | --*/\r | |
904 | {\r | |
905 | while (*WString != 0x0000) {\r | |
906 | if (!(IsValidAscii (*WString) || IsValidEfiCntlChar (*WString) || LibIsValidTextGraphics (*WString, NULL, NULL))) {\r | |
907 | return EFI_UNSUPPORTED;\r | |
908 | }\r | |
909 | \r | |
910 | WString++;\r | |
911 | }\r | |
912 | \r | |
913 | return EFI_SUCCESS;\r | |
914 | }\r | |
915 | \r | |
916 | EFI_STATUS\r | |
917 | EFIAPI\r | |
918 | VgaClassClearScreen (\r | |
919 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This\r | |
920 | )\r | |
921 | /*++\r | |
922 | \r | |
923 | Routine Description:\r | |
924 | \r | |
925 | GC_TODO: Add function description\r | |
926 | \r | |
927 | Arguments:\r | |
928 | \r | |
929 | This - GC_TODO: add argument description\r | |
930 | \r | |
931 | Returns:\r | |
932 | \r | |
933 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
934 | \r | |
935 | --*/\r | |
936 | {\r | |
937 | EFI_STATUS Status;\r | |
938 | VGA_CLASS_DEV *VgaClassDev;\r | |
939 | UINTN MaxRow;\r | |
940 | UINTN MaxColumn;\r | |
941 | UINT32 VideoChar;\r | |
942 | \r | |
943 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r | |
944 | \r | |
945 | Status = This->QueryMode (\r | |
946 | This,\r | |
947 | This->Mode->Mode,\r | |
948 | &MaxColumn,\r | |
949 | &MaxRow\r | |
950 | );\r | |
951 | if (EFI_ERROR (Status)) {\r | |
952 | return Status;\r | |
953 | }\r | |
954 | \r | |
955 | VideoChar = (This->Mode->Attribute << 8) | ' ';\r | |
956 | VideoChar = (VideoChar << 16) | VideoChar;\r | |
957 | VgaClassDev->PciIo->Mem.Write (\r | |
958 | VgaClassDev->PciIo,\r | |
959 | EfiPciIoWidthFillUint32,\r | |
960 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r | |
961 | VgaClassDev->VgaMiniPort->VgaMemoryOffset,\r | |
962 | (MaxRow * MaxColumn) >> 1,\r | |
963 | &VideoChar\r | |
964 | );\r | |
965 | \r | |
966 | This->SetCursorPosition (This, 0, 0);\r | |
967 | \r | |
968 | return EFI_SUCCESS;\r | |
969 | }\r | |
970 | \r | |
971 | EFI_STATUS\r | |
972 | EFIAPI\r | |
973 | VgaClassSetAttribute (\r | |
974 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
975 | IN UINTN Attribute\r | |
976 | )\r | |
977 | /*++\r | |
978 | \r | |
979 | Routine Description:\r | |
980 | \r | |
981 | GC_TODO: Add function description\r | |
982 | \r | |
983 | Arguments:\r | |
984 | \r | |
985 | This - GC_TODO: add argument description\r | |
986 | Attribute - GC_TODO: add argument description\r | |
987 | \r | |
988 | Returns:\r | |
989 | \r | |
990 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
991 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r | |
992 | \r | |
993 | --*/\r | |
994 | {\r | |
995 | if (Attribute <= EFI_MAX_ATTRIBUTE) {\r | |
996 | This->Mode->Attribute = (INT32) Attribute;\r | |
997 | return EFI_SUCCESS;\r | |
998 | }\r | |
999 | \r | |
1000 | return EFI_UNSUPPORTED;\r | |
1001 | }\r | |
1002 | \r | |
1003 | EFI_STATUS\r | |
1004 | EFIAPI\r | |
1005 | VgaClassSetCursorPosition (\r | |
1006 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
1007 | IN UINTN Column,\r | |
1008 | IN UINTN Row\r | |
1009 | )\r | |
1010 | /*++\r | |
1011 | \r | |
1012 | Routine Description:\r | |
1013 | \r | |
1014 | GC_TODO: Add function description\r | |
1015 | \r | |
1016 | Arguments:\r | |
1017 | \r | |
1018 | This - GC_TODO: add argument description\r | |
1019 | Column - GC_TODO: add argument description\r | |
1020 | Row - GC_TODO: add argument description\r | |
1021 | \r | |
1022 | Returns:\r | |
1023 | \r | |
1024 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r | |
1025 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1026 | \r | |
1027 | --*/\r | |
1028 | {\r | |
1029 | EFI_STATUS Status;\r | |
1030 | VGA_CLASS_DEV *VgaClassDev;\r | |
1031 | UINTN MaxColumn;\r | |
1032 | UINTN MaxRow;\r | |
1033 | \r | |
1034 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r | |
1035 | \r | |
1036 | Status = This->QueryMode (\r | |
1037 | This,\r | |
1038 | This->Mode->Mode,\r | |
1039 | &MaxColumn,\r | |
1040 | &MaxRow\r | |
1041 | );\r | |
1042 | if (EFI_ERROR (Status)) {\r | |
1043 | return Status;\r | |
1044 | }\r | |
1045 | \r | |
1046 | if (Column >= MaxColumn || Row >= MaxRow) {\r | |
1047 | return EFI_UNSUPPORTED;\r | |
1048 | }\r | |
1049 | \r | |
1050 | SetVideoCursorPosition (VgaClassDev, Column, Row, MaxColumn);\r | |
1051 | \r | |
1052 | This->Mode->CursorColumn = (INT32) Column;\r | |
1053 | This->Mode->CursorRow = (INT32) Row;\r | |
1054 | \r | |
1055 | return EFI_SUCCESS;\r | |
1056 | }\r | |
1057 | \r | |
1058 | EFI_STATUS\r | |
1059 | EFIAPI\r | |
1060 | VgaClassEnableCursor (\r | |
1061 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
1062 | IN BOOLEAN Visible\r | |
1063 | )\r | |
1064 | /*++\r | |
1065 | \r | |
1066 | Routine Description:\r | |
1067 | \r | |
1068 | GC_TODO: Add function description\r | |
1069 | \r | |
1070 | Arguments:\r | |
1071 | \r | |
1072 | This - GC_TODO: add argument description\r | |
1073 | Visible - GC_TODO: add argument description\r | |
1074 | \r | |
1075 | Returns:\r | |
1076 | \r | |
1077 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1078 | \r | |
1079 | --*/\r | |
1080 | {\r | |
1081 | VGA_CLASS_DEV *VgaClassDev;\r | |
1082 | \r | |
1083 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r | |
1084 | if (Visible) {\r | |
1085 | switch (This->Mode->Mode) {\r | |
1086 | case 1:\r | |
1087 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x06);\r | |
1088 | WriteCrtc (VgaClassDev, CRTC_CURSOR_END, 0x07);\r | |
1089 | break;\r | |
1090 | \r | |
1091 | default:\r | |
1092 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x0e);\r | |
1093 | WriteCrtc (VgaClassDev, CRTC_CURSOR_END, 0x0f);\r | |
1094 | break;\r | |
1095 | }\r | |
1096 | } else {\r | |
1097 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x20);\r | |
1098 | }\r | |
1099 | \r | |
1100 | This->Mode->CursorVisible = Visible;\r | |
1101 | return EFI_SUCCESS;\r | |
1102 | }\r | |
1103 | \r | |
1104 | EFI_STATUS\r | |
1105 | EFIAPI\r | |
1106 | VgaClassQueryMode (\r | |
1107 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
1108 | IN UINTN ModeNumber,\r | |
1109 | OUT UINTN *Columns,\r | |
1110 | OUT UINTN *Rows\r | |
1111 | )\r | |
1112 | /*++\r | |
1113 | \r | |
1114 | Routine Description:\r | |
1115 | \r | |
1116 | GC_TODO: Add function description\r | |
1117 | \r | |
1118 | Arguments:\r | |
1119 | \r | |
1120 | This - GC_TODO: add argument description\r | |
1121 | ModeNumber - GC_TODO: add argument description\r | |
1122 | Columns - GC_TODO: add argument description\r | |
1123 | Rows - GC_TODO: add argument description\r | |
1124 | \r | |
1125 | Returns:\r | |
1126 | \r | |
1127 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r | |
1128 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r | |
1129 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1130 | \r | |
1131 | --*/\r | |
1132 | {\r | |
1133 | if ((INT32) ModeNumber >= This->Mode->MaxMode) {\r | |
1134 | *Columns = 0;\r | |
1135 | *Rows = 0;\r | |
1136 | return EFI_UNSUPPORTED;\r | |
1137 | }\r | |
1138 | \r | |
1139 | switch (ModeNumber) {\r | |
1140 | case 0:\r | |
1141 | *Columns = 80;\r | |
1142 | *Rows = 25;\r | |
1143 | break;\r | |
1144 | \r | |
1145 | case 1:\r | |
1146 | *Columns = 80;\r | |
1147 | *Rows = 50;\r | |
1148 | break;\r | |
1149 | \r | |
1150 | default:\r | |
1151 | *Columns = 0;\r | |
1152 | *Rows = 0;\r | |
1153 | return EFI_UNSUPPORTED;\r | |
1154 | }\r | |
1155 | \r | |
1156 | return EFI_SUCCESS;\r | |
1157 | }\r | |
1158 | \r | |
1159 | EFI_STATUS\r | |
1160 | EFIAPI\r | |
1161 | VgaClassSetMode (\r | |
1162 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
1163 | IN UINTN ModeNumber\r | |
1164 | )\r | |
1165 | /*++\r | |
1166 | \r | |
1167 | Routine Description:\r | |
1168 | \r | |
1169 | GC_TODO: Add function description\r | |
1170 | \r | |
1171 | Arguments:\r | |
1172 | \r | |
1173 | This - GC_TODO: add argument description\r | |
1174 | ModeNumber - GC_TODO: add argument description\r | |
1175 | \r | |
1176 | Returns:\r | |
1177 | \r | |
1178 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r | |
1179 | \r | |
1180 | --*/\r | |
1181 | {\r | |
1182 | EFI_STATUS Status;\r | |
1183 | VGA_CLASS_DEV *VgaClassDev;\r | |
1184 | \r | |
1185 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r | |
1186 | \r | |
1187 | if ((INT32) ModeNumber >= This->Mode->MaxMode) {\r | |
1188 | return EFI_UNSUPPORTED;\r | |
1189 | }\r | |
1190 | \r | |
1191 | This->ClearScreen (This);\r | |
1192 | \r | |
1193 | This->Mode->Mode = (INT32) ModeNumber;\r | |
1194 | \r | |
1195 | Status = VgaClassDev->VgaMiniPort->SetMode (VgaClassDev->VgaMiniPort, ModeNumber);\r | |
1196 | \r | |
1197 | return Status;\r | |
1198 | }\r | |
1199 | //\r | |
1200 | // Private Worker Functions\r | |
1201 | //\r | |
1202 | STATIC\r | |
1203 | VOID\r | |
1204 | SetVideoCursorPosition (\r | |
1205 | IN VGA_CLASS_DEV *VgaClassDev,\r | |
1206 | IN UINTN Column,\r | |
1207 | IN UINTN Row,\r | |
1208 | IN UINTN MaxColumn\r | |
1209 | )\r | |
1210 | /*++\r | |
1211 | \r | |
1212 | Routine Description:\r | |
1213 | \r | |
1214 | GC_TODO: Add function description\r | |
1215 | \r | |
1216 | Arguments:\r | |
1217 | \r | |
1218 | VgaClassDev - GC_TODO: add argument description\r | |
1219 | Column - GC_TODO: add argument description\r | |
1220 | Row - GC_TODO: add argument description\r | |
1221 | MaxColumn - GC_TODO: add argument description\r | |
1222 | \r | |
1223 | Returns:\r | |
1224 | \r | |
1225 | GC_TODO: add return values\r | |
1226 | \r | |
1227 | --*/\r | |
1228 | {\r | |
1229 | Column = Column & 0xff;\r | |
1230 | Row = Row & 0xff;\r | |
1231 | MaxColumn = MaxColumn & 0xff;\r | |
1232 | WriteCrtc (\r | |
1233 | VgaClassDev,\r | |
1234 | CRTC_CURSOR_LOCATION_HIGH,\r | |
1235 | (UINT8) ((Row * MaxColumn + Column) >> 8)\r | |
1236 | );\r | |
1237 | WriteCrtc (\r | |
1238 | VgaClassDev,\r | |
1239 | CRTC_CURSOR_LOCATION_LOW,\r | |
1240 | (UINT8) ((Row * MaxColumn + Column) & 0xff)\r | |
1241 | );\r | |
1242 | }\r | |
1243 | \r | |
1244 | STATIC\r | |
1245 | VOID\r | |
1246 | WriteCrtc (\r | |
1247 | IN VGA_CLASS_DEV *VgaClassDev,\r | |
1248 | IN UINT16 Address,\r | |
1249 | IN UINT8 Data\r | |
1250 | )\r | |
1251 | /*++\r | |
1252 | \r | |
1253 | Routine Description:\r | |
1254 | \r | |
1255 | GC_TODO: Add function description\r | |
1256 | \r | |
1257 | Arguments:\r | |
1258 | \r | |
1259 | VgaClassDev - GC_TODO: add argument description\r | |
1260 | Address - GC_TODO: add argument description\r | |
1261 | Data - GC_TODO: add argument description\r | |
1262 | \r | |
1263 | Returns:\r | |
1264 | \r | |
1265 | GC_TODO: add return values\r | |
1266 | \r | |
1267 | --*/\r | |
1268 | {\r | |
1269 | VgaClassDev->PciIo->Io.Write (\r | |
1270 | VgaClassDev->PciIo,\r | |
1271 | EfiPciIoWidthUint8,\r | |
1272 | VgaClassDev->VgaMiniPort->CrtcAddressRegisterBar,\r | |
1273 | VgaClassDev->VgaMiniPort->CrtcAddressRegisterOffset,\r | |
1274 | 1,\r | |
1275 | &Address\r | |
1276 | );\r | |
1277 | \r | |
1278 | VgaClassDev->PciIo->Io.Write (\r | |
1279 | VgaClassDev->PciIo,\r | |
1280 | EfiPciIoWidthUint8,\r | |
1281 | VgaClassDev->VgaMiniPort->CrtcDataRegisterBar,\r | |
1282 | VgaClassDev->VgaMiniPort->CrtcDataRegisterOffset,\r | |
1283 | 1,\r | |
1284 | &Data\r | |
1285 | );\r | |
1286 | }\r | |
1287 | \r | |
1288 | STATIC\r | |
1289 | BOOLEAN\r | |
1290 | LibIsValidTextGraphics (\r | |
1291 | IN CHAR16 Graphic,\r | |
1292 | OUT CHAR8 *PcAnsi, OPTIONAL\r | |
1293 | OUT CHAR8 *Ascii OPTIONAL\r | |
1294 | )\r | |
1295 | /*++\r | |
1296 | \r | |
1297 | Routine Description:\r | |
1298 | \r | |
1299 | Detects if a Unicode char is for Box Drawing text graphics.\r | |
1300 | \r | |
1301 | Arguments:\r | |
1302 | \r | |
1303 | Grphic - Unicode char to test.\r | |
1304 | \r | |
1305 | PcAnsi - Optional pointer to return PCANSI equivalent of Graphic.\r | |
1306 | \r | |
1307 | Asci - Optional pointer to return Ascii equivalent of Graphic.\r | |
1308 | \r | |
1309 | Returns:\r | |
1310 | \r | |
1311 | TRUE if Gpaphic is a supported Unicode Box Drawing character.\r | |
1312 | \r | |
1313 | --*/\r | |
1314 | // GC_TODO: Graphic - add argument and description to function comment\r | |
1315 | {\r | |
1316 | UNICODE_TO_CHAR *Table;\r | |
1317 | \r | |
1318 | if ((((Graphic & 0xff00) != 0x2500) && ((Graphic & 0xff00) != 0x2100))) {\r | |
1319 | //\r | |
1320 | // Unicode drawing code charts are all in the 0x25xx range,\r | |
1321 | // arrows are 0x21xx\r | |
1322 | //\r | |
1323 | return FALSE;\r | |
1324 | }\r | |
1325 | \r | |
1326 | for (Table = UnicodeToPcAnsiOrAscii; Table->Unicode != 0x0000; Table++) {\r | |
1327 | if (Graphic == Table->Unicode) {\r | |
1328 | if (PcAnsi) {\r | |
1329 | *PcAnsi = Table->PcAnsi;\r | |
1330 | }\r | |
1331 | \r | |
1332 | if (Ascii) {\r | |
1333 | *Ascii = Table->Ascii;\r | |
1334 | }\r | |
1335 | \r | |
1336 | return TRUE;\r | |
1337 | }\r | |
1338 | }\r | |
1339 | \r | |
1340 | return FALSE;\r | |
1341 | }\r | |
1342 | \r | |
1343 | STATIC\r | |
1344 | BOOLEAN\r | |
1345 | IsValidAscii (\r | |
1346 | IN CHAR16 Ascii\r | |
1347 | )\r | |
1348 | /*++\r | |
1349 | \r | |
1350 | Routine Description:\r | |
1351 | \r | |
1352 | GC_TODO: Add function description\r | |
1353 | \r | |
1354 | Arguments:\r | |
1355 | \r | |
1356 | Ascii - GC_TODO: add argument description\r | |
1357 | \r | |
1358 | Returns:\r | |
1359 | \r | |
1360 | GC_TODO: add return values\r | |
1361 | \r | |
1362 | --*/\r | |
1363 | {\r | |
1364 | if ((Ascii >= 0x20) && (Ascii <= 0x7f)) {\r | |
1365 | return TRUE;\r | |
1366 | }\r | |
1367 | \r | |
1368 | return FALSE;\r | |
1369 | }\r | |
1370 | \r | |
1371 | STATIC\r | |
1372 | BOOLEAN\r | |
1373 | IsValidEfiCntlChar (\r | |
1374 | IN CHAR16 c\r | |
1375 | )\r | |
1376 | /*++\r | |
1377 | \r | |
1378 | Routine Description:\r | |
1379 | \r | |
1380 | GC_TODO: Add function description\r | |
1381 | \r | |
1382 | Arguments:\r | |
1383 | \r | |
1384 | c - GC_TODO: add argument description\r | |
1385 | \r | |
1386 | Returns:\r | |
1387 | \r | |
1388 | GC_TODO: add return values\r | |
1389 | \r | |
1390 | --*/\r | |
1391 | {\r | |
1392 | if (c == CHAR_NULL || c == CHAR_BACKSPACE || c == CHAR_LINEFEED || c == CHAR_CARRIAGE_RETURN) {\r | |
1393 | return TRUE;\r | |
1394 | }\r | |
1395 | \r | |
1396 | return FALSE;\r | |
1397 | }\r |