95276127 |
1 | /**@file\r |
2 | Implementation for EFI_SIMPLE_TEXT_INPUT_PROTOCOL protocol.\r |
3 | \r |
4 | Copyright (c) 2006 - 2007 Intel Corporation. <BR>\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 |
14 | \r |
95276127 |
15 | #include "Terminal.h"\r |
16 | \r |
95276127 |
17 | \r |
18 | EFI_STATUS\r |
19 | EFIAPI\r |
20 | TerminalConInReset (\r |
21 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r |
22 | IN BOOLEAN ExtendedVerification\r |
23 | )\r |
24 | /*++\r |
25 | Routine Description:\r |
26 | \r |
27 | Implements EFI_SIMPLE_TEXT_INPUT_PROTOCOL.Reset().\r |
28 | This driver only perform dependent serial device reset regardless of \r |
29 | the value of ExtendeVerification\r |
30 | \r |
31 | Arguments:\r |
32 | \r |
33 | This - Indicates the calling context.\r |
34 | \r |
35 | ExtendedVerification - Skip by this driver.\r |
36 | \r |
37 | Returns:\r |
38 | \r |
39 | EFI_SUCCESS\r |
40 | The reset operation succeeds. \r |
41 | \r |
42 | EFI_DEVICE_ERROR\r |
43 | The dependent serial port reset fails.\r |
44 | \r |
45 | --*/\r |
46 | {\r |
47 | EFI_STATUS Status;\r |
48 | TERMINAL_DEV *TerminalDevice;\r |
49 | \r |
50 | TerminalDevice = TERMINAL_CON_IN_DEV_FROM_THIS (This);\r |
51 | \r |
52 | //\r |
53 | // Report progress code here\r |
54 | //\r |
55 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
56 | EFI_PROGRESS_CODE,\r |
97a079ed |
57 | PcdGet32 (PcdStatusCodeValueRemoteConsoleReset),\r |
95276127 |
58 | TerminalDevice->DevicePath\r |
59 | );\r |
60 | \r |
61 | Status = TerminalDevice->SerialIo->Reset (TerminalDevice->SerialIo);\r |
62 | \r |
63 | //\r |
64 | // clear all the internal buffer for keys\r |
65 | //\r |
66 | InitializeRawFiFo (TerminalDevice);\r |
67 | InitializeUnicodeFiFo (TerminalDevice);\r |
68 | InitializeEfiKeyFiFo (TerminalDevice);\r |
69 | \r |
70 | if (EFI_ERROR (Status)) {\r |
71 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
72 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r |
97a079ed |
73 | PcdGet32 (PcdStatusCodeValueRemoteConsoleError),\r |
95276127 |
74 | TerminalDevice->DevicePath\r |
75 | );\r |
76 | }\r |
77 | \r |
78 | return Status;\r |
79 | }\r |
80 | \r |
81 | EFI_STATUS\r |
82 | EFIAPI\r |
83 | TerminalConInReadKeyStroke (\r |
84 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r |
85 | OUT EFI_INPUT_KEY *Key\r |
86 | )\r |
87 | /*++\r |
88 | Routine Description:\r |
89 | \r |
90 | Implements EFI_SIMPLE_TEXT_INPUT_PROTOCOL.ReadKeyStroke().\r |
91 | \r |
92 | Arguments:\r |
93 | \r |
94 | This - Indicates the calling context.\r |
95 | \r |
96 | Key - A pointer to a buffer that is filled in with the keystroke\r |
97 | information for the key that was sent from terminal. \r |
98 | \r |
99 | Returns:\r |
100 | \r |
101 | EFI_SUCCESS\r |
102 | The keystroke information is returned successfully.\r |
103 | \r |
104 | EFI_NOT_READY\r |
105 | There is no keystroke data available.\r |
106 | \r |
107 | EFI_DEVICE_ERROR\r |
108 | The dependent serial device encounters error.\r |
109 | \r |
110 | --*/\r |
111 | {\r |
112 | TERMINAL_DEV *TerminalDevice;\r |
113 | EFI_STATUS Status;\r |
114 | \r |
115 | //\r |
116 | // Initialize *Key to nonsense value.\r |
117 | //\r |
118 | Key->ScanCode = SCAN_NULL;\r |
119 | Key->UnicodeChar = 0;\r |
120 | //\r |
121 | // get TERMINAL_DEV from "This" parameter.\r |
122 | //\r |
123 | TerminalDevice = TERMINAL_CON_IN_DEV_FROM_THIS (This);\r |
124 | \r |
125 | Status = TerminalConInCheckForKey (This);\r |
126 | if (EFI_ERROR (Status)) {\r |
127 | return EFI_NOT_READY;\r |
128 | }\r |
129 | \r |
130 | EfiKeyFiFoRemoveOneKey (TerminalDevice, Key);\r |
131 | \r |
132 | return EFI_SUCCESS;\r |
133 | \r |
134 | }\r |
135 | \r |
136 | VOID\r |
137 | TranslateRawDataToEfiKey (\r |
138 | IN TERMINAL_DEV *TerminalDevice\r |
139 | )\r |
140 | /*++\r |
141 | Step1: Turn raw data into Unicode (according to different encode).\r |
142 | Step2: Translate Unicode into key information. \r |
143 | (according to different terminal standard).\r |
144 | --*/\r |
145 | {\r |
146 | switch (TerminalDevice->TerminalType) {\r |
147 | \r |
148 | case PcAnsiType:\r |
149 | case VT100Type:\r |
150 | case VT100PlusType:\r |
151 | AnsiRawDataToUnicode (TerminalDevice);\r |
152 | UnicodeToEfiKey (TerminalDevice);\r |
153 | break;\r |
154 | \r |
155 | case VTUTF8Type:\r |
156 | //\r |
157 | // Process all the raw data in the RawFIFO,\r |
158 | // put the processed key into UnicodeFIFO.\r |
159 | //\r |
160 | VTUTF8RawDataToUnicode (TerminalDevice);\r |
161 | \r |
162 | //\r |
163 | // Translate all the Unicode data in the UnicodeFIFO to Efi key,\r |
164 | // then put into EfiKeyFIFO.\r |
165 | //\r |
166 | UnicodeToEfiKey (TerminalDevice);\r |
167 | \r |
168 | break;\r |
169 | }\r |
170 | }\r |
171 | \r |
172 | VOID\r |
173 | EFIAPI\r |
174 | TerminalConInWaitForKey (\r |
175 | IN EFI_EVENT Event,\r |
176 | IN VOID *Context\r |
177 | )\r |
178 | /*++\r |
179 | Routine Description:\r |
180 | \r |
181 | Event notification function for EFI_SIMPLE_TEXT_INPUT_PROTOCOL.WaitForKey event\r |
182 | Signal the event if there is key available \r |
183 | \r |
184 | Arguments:\r |
185 | \r |
186 | Event - Indicates the event that invoke this function.\r |
187 | \r |
188 | Context - Indicates the calling context.\r |
189 | \r |
190 | Returns:\r |
191 | \r |
192 | N/A\r |
193 | \r |
194 | --*/\r |
195 | {\r |
196 | //\r |
197 | // Someone is waiting on the keystroke event, if there's\r |
198 | // a key pending, signal the event\r |
199 | //\r |
200 | // Context is the pointer to EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r |
201 | //\r |
202 | if (!EFI_ERROR (TerminalConInCheckForKey (Context))) {\r |
203 | \r |
204 | gBS->SignalEvent (Event);\r |
205 | }\r |
206 | }\r |
207 | \r |
208 | EFI_STATUS\r |
209 | TerminalConInCheckForKey (\r |
210 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This\r |
211 | )\r |
212 | /*++\r |
213 | Routine Description:\r |
214 | \r |
215 | Check for a pending key in the Efi Key FIFO or Serial device buffer.\r |
216 | \r |
217 | Arguments:\r |
218 | \r |
219 | This - Indicates the calling context.\r |
220 | \r |
221 | Returns:\r |
222 | \r |
223 | EFI_SUCCESS\r |
224 | There is key pending. \r |
225 | \r |
226 | EFI_NOT_READY\r |
227 | There is no key pending.\r |
228 | \r |
229 | EFI_DEVICE_ERROR\r |
230 | \r |
231 | --*/\r |
232 | {\r |
233 | EFI_STATUS Status;\r |
234 | TERMINAL_DEV *TerminalDevice;\r |
235 | UINT32 Control;\r |
236 | UINT8 Input;\r |
237 | EFI_SERIAL_IO_MODE *Mode;\r |
238 | EFI_SERIAL_IO_PROTOCOL *SerialIo;\r |
239 | UINTN SerialInTimeOut;\r |
240 | \r |
241 | TerminalDevice = TERMINAL_CON_IN_DEV_FROM_THIS (This);\r |
242 | \r |
243 | SerialIo = TerminalDevice->SerialIo;\r |
244 | if (SerialIo == NULL) {\r |
245 | return EFI_DEVICE_ERROR;\r |
246 | }\r |
247 | //\r |
248 | // if current timeout value for serial device is not identical with\r |
249 | // the value saved in TERMINAL_DEV structure, then recalculate the\r |
250 | // timeout value again and set serial attribute according to this value.\r |
251 | //\r |
252 | Mode = SerialIo->Mode;\r |
253 | if (Mode->Timeout != TerminalDevice->SerialInTimeOut) {\r |
254 | \r |
255 | SerialInTimeOut = 0;\r |
256 | if (Mode->BaudRate != 0) {\r |
257 | SerialInTimeOut = (1 + Mode->DataBits + Mode->StopBits) * 2 * 1000000 / (UINTN) Mode->BaudRate;\r |
258 | }\r |
259 | \r |
260 | Status = SerialIo->SetAttributes (\r |
261 | SerialIo,\r |
262 | Mode->BaudRate,\r |
263 | Mode->ReceiveFifoDepth,\r |
264 | (UINT32) SerialInTimeOut,\r |
265 | (EFI_PARITY_TYPE) (Mode->Parity),\r |
266 | (UINT8) Mode->DataBits,\r |
267 | (EFI_STOP_BITS_TYPE) (Mode->StopBits)\r |
268 | );\r |
269 | \r |
270 | if (EFI_ERROR (Status)) {\r |
271 | TerminalDevice->SerialInTimeOut = 0;\r |
272 | } else {\r |
273 | TerminalDevice->SerialInTimeOut = SerialInTimeOut;\r |
274 | }\r |
275 | }\r |
276 | //\r |
277 | // check whether serial buffer is empty\r |
278 | //\r |
279 | Status = SerialIo->GetControl (SerialIo, &Control);\r |
280 | \r |
281 | if (Control & EFI_SERIAL_INPUT_BUFFER_EMPTY) {\r |
282 | //\r |
283 | // Translate all the raw data in RawFIFO into EFI Key,\r |
284 | // according to different terminal type supported.\r |
285 | //\r |
286 | TranslateRawDataToEfiKey (TerminalDevice);\r |
287 | \r |
288 | //\r |
289 | // if there is pre-fetched Efi Key in EfiKeyFIFO buffer,\r |
290 | // return directly.\r |
291 | //\r |
292 | if (!IsEfiKeyFiFoEmpty (TerminalDevice)) {\r |
293 | return EFI_SUCCESS;\r |
294 | } else {\r |
295 | return EFI_NOT_READY;\r |
296 | }\r |
297 | }\r |
298 | //\r |
299 | // Fetch all the keys in the serial buffer,\r |
300 | // and insert the byte stream into RawFIFO.\r |
301 | //\r |
302 | do {\r |
303 | \r |
304 | Status = GetOneKeyFromSerial (TerminalDevice->SerialIo, &Input);\r |
305 | \r |
306 | if (EFI_ERROR (Status)) {\r |
307 | if (Status == EFI_DEVICE_ERROR) {\r |
308 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
309 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r |
97a079ed |
310 | PcdGet32 (PcdStatusCodeValueRemoteConsoleInputError),\r |
95276127 |
311 | TerminalDevice->DevicePath\r |
312 | );\r |
313 | }\r |
314 | break;\r |
315 | }\r |
316 | \r |
317 | RawFiFoInsertOneKey (TerminalDevice, Input);\r |
318 | } while (TRUE);\r |
319 | \r |
320 | //\r |
321 | // Translate all the raw data in RawFIFO into EFI Key,\r |
322 | // according to different terminal type supported.\r |
323 | //\r |
324 | TranslateRawDataToEfiKey (TerminalDevice);\r |
325 | \r |
326 | if (IsEfiKeyFiFoEmpty (TerminalDevice)) {\r |
327 | return EFI_NOT_READY;\r |
328 | }\r |
329 | \r |
330 | return EFI_SUCCESS;\r |
331 | }\r |
332 | \r |
333 | EFI_STATUS\r |
334 | GetOneKeyFromSerial (\r |
335 | EFI_SERIAL_IO_PROTOCOL *SerialIo,\r |
336 | UINT8 *Input\r |
337 | )\r |
338 | /*++\r |
339 | Get one key out of serial buffer.\r |
340 | If serial buffer is empty, return EFI_NOT_READY;\r |
341 | if reading serial buffer encounter error, returns EFI_DEVICE_ERROR;\r |
342 | if reading serial buffer successfully, put the fetched key to \r |
343 | the parameter "Input", and return EFI_SUCCESS.\r |
344 | --*/\r |
345 | {\r |
346 | EFI_STATUS Status;\r |
347 | UINTN Size;\r |
348 | \r |
349 | Size = 1;\r |
350 | *Input = 0;\r |
351 | \r |
352 | Status = SerialIo->Read (SerialIo, &Size, Input);\r |
353 | \r |
354 | if (EFI_ERROR (Status)) {\r |
355 | \r |
356 | if (Status == EFI_TIMEOUT) {\r |
357 | return EFI_NOT_READY;\r |
358 | }\r |
359 | \r |
360 | return EFI_DEVICE_ERROR;\r |
361 | \r |
362 | }\r |
363 | \r |
364 | if (*Input == 0) {\r |
365 | return EFI_NOT_READY;\r |
366 | }\r |
367 | \r |
368 | return EFI_SUCCESS;\r |
369 | }\r |
370 | \r |
371 | BOOLEAN\r |
372 | RawFiFoInsertOneKey (\r |
373 | TERMINAL_DEV *TerminalDevice,\r |
374 | UINT8 Input\r |
375 | )\r |
376 | /*++\r |
377 | Insert one byte raw data into the Raw Data FIFO.\r |
378 | If FIFO is FULL before data insertion,\r |
379 | return FALSE, and the key is lost.\r |
380 | --*/\r |
381 | {\r |
382 | UINT8 Tail;\r |
383 | \r |
384 | Tail = TerminalDevice->RawFiFo.Tail;\r |
385 | \r |
386 | if (IsRawFiFoFull (TerminalDevice)) {\r |
387 | //\r |
388 | // Raw FIFO is full\r |
389 | //\r |
390 | return FALSE;\r |
391 | }\r |
392 | \r |
393 | TerminalDevice->RawFiFo.Data[Tail] = Input;\r |
394 | \r |
395 | TerminalDevice->RawFiFo.Tail = (UINT8) ((Tail + 1) % (RAW_FIFO_MAX_NUMBER + 1));\r |
396 | \r |
397 | return TRUE;\r |
398 | }\r |
399 | \r |
400 | BOOLEAN\r |
401 | RawFiFoRemoveOneKey (\r |
402 | TERMINAL_DEV *TerminalDevice,\r |
403 | UINT8 *Output\r |
404 | )\r |
405 | /*++\r |
406 | Remove one byte raw data out of the Raw Data FIFO.\r |
407 | If FIFO buffer is empty before remove operation,\r |
408 | return FALSE.\r |
409 | --*/\r |
410 | {\r |
411 | UINT8 Head;\r |
412 | \r |
413 | Head = TerminalDevice->RawFiFo.Head;\r |
414 | \r |
415 | if (IsRawFiFoEmpty (TerminalDevice)) {\r |
416 | //\r |
417 | // FIFO is empty\r |
418 | //\r |
419 | *Output = 0;\r |
420 | return FALSE;\r |
421 | }\r |
422 | \r |
423 | *Output = TerminalDevice->RawFiFo.Data[Head];\r |
424 | \r |
425 | TerminalDevice->RawFiFo.Head = (UINT8) ((Head + 1) % (RAW_FIFO_MAX_NUMBER + 1));\r |
426 | \r |
427 | return TRUE;\r |
428 | }\r |
429 | \r |
430 | BOOLEAN\r |
431 | IsRawFiFoEmpty (\r |
432 | TERMINAL_DEV *TerminalDevice\r |
433 | )\r |
434 | /*++\r |
435 | Clarify whether FIFO buffer is empty.\r |
436 | --*/\r |
437 | {\r |
438 | if (TerminalDevice->RawFiFo.Head == TerminalDevice->RawFiFo.Tail) {\r |
439 | return TRUE;\r |
440 | } else {\r |
441 | return FALSE;\r |
442 | }\r |
443 | }\r |
444 | \r |
445 | BOOLEAN\r |
446 | IsRawFiFoFull (\r |
447 | TERMINAL_DEV *TerminalDevice\r |
448 | )\r |
449 | /*++\r |
450 | Clarify whether FIFO buffer is full.\r |
451 | --*/\r |
452 | {\r |
453 | UINT8 Tail;\r |
454 | UINT8 Head;\r |
455 | \r |
456 | Tail = TerminalDevice->RawFiFo.Tail;\r |
457 | Head = TerminalDevice->RawFiFo.Head;\r |
458 | \r |
459 | if (((Tail + 1) % (RAW_FIFO_MAX_NUMBER + 1)) == Head) {\r |
460 | \r |
461 | return TRUE;\r |
462 | }\r |
463 | \r |
464 | return FALSE;\r |
465 | }\r |
466 | \r |
467 | BOOLEAN\r |
468 | EfiKeyFiFoInsertOneKey (\r |
469 | TERMINAL_DEV *TerminalDevice,\r |
470 | EFI_INPUT_KEY Key\r |
471 | )\r |
472 | /*++\r |
473 | Insert one pre-fetched key into the FIFO buffer.\r |
474 | If FIFO buffer is FULL before key insertion,\r |
475 | return FALSE, and the key is lost.\r |
476 | --*/\r |
477 | {\r |
478 | UINT8 Tail;\r |
479 | \r |
480 | Tail = TerminalDevice->EfiKeyFiFo.Tail;\r |
481 | \r |
482 | if (IsEfiKeyFiFoFull (TerminalDevice)) {\r |
483 | //\r |
484 | // Efi Key FIFO is full\r |
485 | //\r |
486 | return FALSE;\r |
487 | }\r |
488 | \r |
489 | TerminalDevice->EfiKeyFiFo.Data[Tail] = Key;\r |
490 | \r |
491 | TerminalDevice->EfiKeyFiFo.Tail = (UINT8) ((Tail + 1) % (FIFO_MAX_NUMBER + 1));\r |
492 | \r |
493 | return TRUE;\r |
494 | }\r |
495 | \r |
496 | BOOLEAN\r |
497 | EfiKeyFiFoRemoveOneKey (\r |
498 | TERMINAL_DEV *TerminalDevice,\r |
499 | EFI_INPUT_KEY *Output\r |
500 | )\r |
501 | /*++\r |
502 | Remove one pre-fetched key out of the FIFO buffer.\r |
503 | If FIFO buffer is empty before remove operation,\r |
504 | return FALSE.\r |
505 | --*/\r |
506 | {\r |
507 | UINT8 Head;\r |
508 | \r |
509 | Head = TerminalDevice->EfiKeyFiFo.Head;\r |
510 | \r |
511 | if (IsEfiKeyFiFoEmpty (TerminalDevice)) {\r |
512 | //\r |
513 | // FIFO is empty\r |
514 | //\r |
515 | Output->ScanCode = SCAN_NULL;\r |
516 | Output->UnicodeChar = 0;\r |
517 | return FALSE;\r |
518 | }\r |
519 | \r |
520 | *Output = TerminalDevice->EfiKeyFiFo.Data[Head];\r |
521 | \r |
522 | TerminalDevice->EfiKeyFiFo.Head = (UINT8) ((Head + 1) % (FIFO_MAX_NUMBER + 1));\r |
523 | \r |
524 | return TRUE;\r |
525 | }\r |
526 | \r |
527 | BOOLEAN\r |
528 | IsEfiKeyFiFoEmpty (\r |
529 | TERMINAL_DEV *TerminalDevice\r |
530 | )\r |
531 | /*++\r |
532 | Clarify whether FIFO buffer is empty.\r |
533 | --*/\r |
534 | {\r |
535 | if (TerminalDevice->EfiKeyFiFo.Head == TerminalDevice->EfiKeyFiFo.Tail) {\r |
536 | return TRUE;\r |
537 | } else {\r |
538 | return FALSE;\r |
539 | }\r |
540 | }\r |
541 | \r |
542 | BOOLEAN\r |
543 | IsEfiKeyFiFoFull (\r |
544 | TERMINAL_DEV *TerminalDevice\r |
545 | )\r |
546 | /*++\r |
547 | Clarify whether FIFO buffer is full.\r |
548 | --*/\r |
549 | {\r |
550 | UINT8 Tail;\r |
551 | UINT8 Head;\r |
552 | \r |
553 | Tail = TerminalDevice->EfiKeyFiFo.Tail;\r |
554 | Head = TerminalDevice->EfiKeyFiFo.Head;\r |
555 | \r |
556 | if (((Tail + 1) % (FIFO_MAX_NUMBER + 1)) == Head) {\r |
557 | \r |
558 | return TRUE;\r |
559 | }\r |
560 | \r |
561 | return FALSE;\r |
562 | }\r |
563 | \r |
564 | BOOLEAN\r |
565 | UnicodeFiFoInsertOneKey (\r |
566 | TERMINAL_DEV *TerminalDevice,\r |
567 | UINT16 Input\r |
568 | )\r |
569 | /*++\r |
570 | Insert one pre-fetched key into the FIFO buffer.\r |
571 | If FIFO buffer is FULL before key insertion,\r |
572 | return FALSE, and the key is lost.\r |
573 | --*/\r |
574 | {\r |
575 | UINT8 Tail;\r |
576 | \r |
577 | Tail = TerminalDevice->UnicodeFiFo.Tail;\r |
578 | \r |
579 | if (IsUnicodeFiFoFull (TerminalDevice)) {\r |
580 | //\r |
581 | // Unicode FIFO is full\r |
582 | //\r |
583 | return FALSE;\r |
584 | }\r |
585 | \r |
586 | TerminalDevice->UnicodeFiFo.Data[Tail] = Input;\r |
587 | \r |
588 | TerminalDevice->UnicodeFiFo.Tail = (UINT8) ((Tail + 1) % (FIFO_MAX_NUMBER + 1));\r |
589 | \r |
590 | return TRUE;\r |
591 | }\r |
592 | \r |
593 | BOOLEAN\r |
594 | UnicodeFiFoRemoveOneKey (\r |
595 | TERMINAL_DEV *TerminalDevice,\r |
596 | UINT16 *Output\r |
597 | )\r |
598 | /*++\r |
599 | Remove one pre-fetched key out of the FIFO buffer.\r |
600 | If FIFO buffer is empty before remove operation,\r |
601 | return FALSE.\r |
602 | --*/\r |
603 | {\r |
604 | UINT8 Head;\r |
605 | \r |
606 | Head = TerminalDevice->UnicodeFiFo.Head;\r |
607 | \r |
608 | if (IsUnicodeFiFoEmpty (TerminalDevice)) {\r |
609 | //\r |
610 | // FIFO is empty\r |
611 | //\r |
612 | Output = NULL;\r |
613 | return FALSE;\r |
614 | }\r |
615 | \r |
616 | *Output = TerminalDevice->UnicodeFiFo.Data[Head];\r |
617 | \r |
618 | TerminalDevice->UnicodeFiFo.Head = (UINT8) ((Head + 1) % (FIFO_MAX_NUMBER + 1));\r |
619 | \r |
620 | return TRUE;\r |
621 | }\r |
622 | \r |
623 | BOOLEAN\r |
624 | IsUnicodeFiFoEmpty (\r |
625 | TERMINAL_DEV *TerminalDevice\r |
626 | )\r |
627 | /*++\r |
628 | Clarify whether FIFO buffer is empty.\r |
629 | --*/\r |
630 | {\r |
631 | if (TerminalDevice->UnicodeFiFo.Head == TerminalDevice->UnicodeFiFo.Tail) {\r |
632 | return TRUE;\r |
633 | } else {\r |
634 | return FALSE;\r |
635 | }\r |
636 | }\r |
637 | \r |
638 | BOOLEAN\r |
639 | IsUnicodeFiFoFull (\r |
640 | TERMINAL_DEV *TerminalDevice\r |
641 | )\r |
642 | /*++\r |
643 | Clarify whether FIFO buffer is full.\r |
644 | --*/\r |
645 | {\r |
646 | UINT8 Tail;\r |
647 | UINT8 Head;\r |
648 | \r |
649 | Tail = TerminalDevice->UnicodeFiFo.Tail;\r |
650 | Head = TerminalDevice->UnicodeFiFo.Head;\r |
651 | \r |
652 | if (((Tail + 1) % (FIFO_MAX_NUMBER + 1)) == Head) {\r |
653 | \r |
654 | return TRUE;\r |
655 | }\r |
656 | \r |
657 | return FALSE;\r |
658 | }\r |
659 | \r |
660 | UINT8\r |
661 | UnicodeFiFoGetKeyCount (\r |
662 | TERMINAL_DEV *TerminalDevice\r |
663 | )\r |
664 | {\r |
665 | UINT8 Tail;\r |
666 | UINT8 Head;\r |
667 | \r |
668 | Tail = TerminalDevice->UnicodeFiFo.Tail;\r |
669 | Head = TerminalDevice->UnicodeFiFo.Head;\r |
670 | \r |
671 | if (Tail >= Head) {\r |
672 | return (UINT8) (Tail - Head);\r |
673 | } else {\r |
674 | return (UINT8) (Tail + FIFO_MAX_NUMBER + 1 - Head);\r |
675 | }\r |
676 | }\r |
677 | \r |
678 | STATIC\r |
679 | VOID\r |
680 | UnicodeToEfiKeyFlushState (\r |
681 | IN TERMINAL_DEV *TerminalDevice\r |
682 | )\r |
683 | {\r |
684 | EFI_INPUT_KEY Key;\r |
685 | \r |
686 | if (TerminalDevice->InputState & INPUT_STATE_ESC) {\r |
687 | Key.ScanCode = SCAN_ESC;\r |
688 | Key.UnicodeChar = 0;\r |
689 | EfiKeyFiFoInsertOneKey (TerminalDevice, Key);\r |
690 | }\r |
691 | \r |
692 | if (TerminalDevice->InputState & INPUT_STATE_CSI) {\r |
693 | Key.ScanCode = SCAN_NULL;\r |
694 | Key.UnicodeChar = CSI;\r |
695 | EfiKeyFiFoInsertOneKey (TerminalDevice, Key);\r |
696 | }\r |
697 | \r |
698 | if (TerminalDevice->InputState & INPUT_STATE_LEFTOPENBRACKET) {\r |
699 | Key.ScanCode = SCAN_NULL;\r |
700 | Key.UnicodeChar = LEFTOPENBRACKET;\r |
701 | EfiKeyFiFoInsertOneKey (TerminalDevice, Key);\r |
702 | }\r |
703 | \r |
704 | if (TerminalDevice->InputState & INPUT_STATE_O) {\r |
705 | Key.ScanCode = SCAN_NULL;\r |
706 | Key.UnicodeChar = 'O';\r |
707 | EfiKeyFiFoInsertOneKey (TerminalDevice, Key);\r |
708 | }\r |
709 | \r |
710 | if (TerminalDevice->InputState & INPUT_STATE_2) {\r |
711 | Key.ScanCode = SCAN_NULL;\r |
712 | Key.UnicodeChar = '2';\r |
713 | EfiKeyFiFoInsertOneKey (TerminalDevice, Key);\r |
714 | }\r |
715 | \r |
716 | gBS->SetTimer (\r |
717 | TerminalDevice->TwoSecondTimeOut,\r |
718 | TimerCancel,\r |
719 | 0\r |
720 | );\r |
721 | \r |
722 | TerminalDevice->InputState = INPUT_STATE_DEFAULT;\r |
723 | }\r |
724 | \r |
725 | VOID\r |
726 | UnicodeToEfiKey (\r |
727 | IN TERMINAL_DEV *TerminalDevice\r |
728 | )\r |
729 | /*++\r |
730 | Routine Description:\r |
731 | \r |
732 | Converts a stream of Unicode characters from a terminal input device into EFI Keys that\r |
733 | can be read through the Simple Input Protocol. The table below shows the keyboard\r |
734 | input mappings that this function supports. If the ESC sequence listed in one of the \r |
735 | columns is presented, then it is translated into the coorespoding EFI Scan Code. If a\r |
736 | matching sequence is not found, then the raw key strokes are converted into EFI Keys.\r |
737 | \r |
738 | 2 seconds are allowed for an ESC sequence to be completed. If the ESC sequence is not \r |
739 | completed in 2 seconds, then the raw key strokes of the partial ESC sequence are \r |
740 | converted into EFI Keys.\r |
741 | \r |
742 | There is one special input sequence that will force the system to reset. \r |
743 | This is ESC R ESC r ESC R.\r |
744 | \r |
745 | Arguments:\r |
746 | \r |
747 | TerminaDevice : The terminal device to use to translate raw input into EFI Keys\r |
748 | \r |
749 | Returns:\r |
750 | \r |
751 | None\r |
752 | \r |
753 | Symbols used in table below\r |
754 | ===========================\r |
755 | ESC = 0x1B \r |
756 | CSI = 0x9B \r |
757 | DEL = 0x7f \r |
758 | ^ = CTRL\r |
759 | \r |
760 | +=========+======+===========+==========+==========+\r |
761 | | | EFI | EFI 1.10 | | |\r |
762 | | | Scan | | VT100+ | |\r |
763 | | KEY | Code | PC ANSI | VTUTF8 | VT100 |\r |
764 | +=========+======+===========+==========+==========+\r |
765 | | NULL | 0x00 | | | |\r |
766 | | UP | 0x01 | ESC [ A | ESC [ A | ESC [ A |\r |
767 | | DOWN | 0x02 | ESC [ B | ESC [ B | ESC [ B |\r |
768 | | RIGHT | 0x03 | ESC [ C | ESC [ C | ESC [ C | \r |
769 | | LEFT | 0x04 | ESC [ D | ESC [ D | ESC [ D |\r |
770 | | HOME | 0x05 | ESC [ H | ESC h | ESC [ H |\r |
771 | | END | 0x06 | ESC [ F | ESC k | ESC [ K |\r |
772 | | INSERT | 0x07 | ESC [ @ | ESC + | ESC [ @ |\r |
773 | | | | ESC [ L | | ESC [ L |\r |
774 | | DELETE | 0x08 | ESC [ X | ESC - | ESC [ P |\r |
775 | | PG UP | 0x09 | ESC [ I | ESC ? | ESC [ V |\r |
776 | | | | | | ESC [ ? |\r |
777 | | PG DOWN | 0x0A | ESC [ G | ESC / | ESC [ U |\r |
778 | | | | | | ESC [ / |\r |
779 | | F1 | 0x0B | ESC [ M | ESC 1 | ESC O P |\r |
780 | | F2 | 0x0C | ESC [ N | ESC 2 | ESC O Q |\r |
781 | | F3 | 0x0D | ESC [ O | ESC 3 | ESC O w |\r |
782 | | F4 | 0x0E | ESC [ P | ESC 4 | ESC O x |\r |
783 | | F5 | 0x0F | ESC [ Q | ESC 5 | ESC O t |\r |
784 | | F6 | 0x10 | ESC [ R | ESC 6 | ESC O u |\r |
785 | | F7 | 0x11 | ESC [ S | ESC 7 | ESC O q |\r |
786 | | F8 | 0x12 | ESC [ T | ESC 8 | ESC O r |\r |
787 | | F9 | 0x13 | ESC [ U | ESC 9 | ESC O p |\r |
788 | | F10 | 0x14 | ESC [ V | ESC 0 | ESC O M |\r |
789 | | Escape | 0x17 | ESC | ESC | ESC |\r |
790 | +=========+======+===========+==========+=========+\r |
791 | \r |
792 | Special Mappings\r |
793 | ================\r |
794 | ESC R ESC r ESC R = Reset System\r |
795 | \r |
796 | --*/\r |
797 | {\r |
798 | EFI_STATUS Status;\r |
799 | EFI_STATUS TimerStatus;\r |
800 | UINT16 UnicodeChar;\r |
801 | EFI_INPUT_KEY Key;\r |
802 | BOOLEAN SetDefaultResetState;\r |
803 | \r |
804 | TimerStatus = gBS->CheckEvent (TerminalDevice->TwoSecondTimeOut);\r |
805 | \r |
806 | if (!EFI_ERROR (TimerStatus)) {\r |
807 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
808 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r |
809 | }\r |
810 | \r |
811 | while (!IsUnicodeFiFoEmpty(TerminalDevice)) {\r |
812 | \r |
813 | if (TerminalDevice->InputState != INPUT_STATE_DEFAULT) {\r |
814 | //\r |
815 | // Check to see if the 2 second timer has expired\r |
816 | //\r |
817 | TimerStatus = gBS->CheckEvent (TerminalDevice->TwoSecondTimeOut);\r |
818 | if (!EFI_ERROR (TimerStatus)) {\r |
819 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
820 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r |
821 | }\r |
822 | }\r |
823 | \r |
824 | //\r |
825 | // Fetch one Unicode character from the Unicode FIFO\r |
826 | //\r |
827 | UnicodeFiFoRemoveOneKey (TerminalDevice,&UnicodeChar);\r |
828 | \r |
829 | SetDefaultResetState = TRUE;\r |
830 | \r |
831 | switch (TerminalDevice->InputState) {\r |
832 | case INPUT_STATE_DEFAULT:\r |
833 | \r |
834 | break;\r |
835 | \r |
836 | case INPUT_STATE_ESC:\r |
837 | \r |
838 | if (UnicodeChar == LEFTOPENBRACKET) {\r |
839 | TerminalDevice->InputState |= INPUT_STATE_LEFTOPENBRACKET;\r |
840 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r |
841 | continue;\r |
842 | }\r |
843 | \r |
844 | if (UnicodeChar == 'O' && TerminalDevice->TerminalType == VT100Type) {\r |
845 | TerminalDevice->InputState |= INPUT_STATE_O;\r |
846 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r |
847 | continue;\r |
848 | }\r |
849 | \r |
850 | Key.ScanCode = SCAN_NULL;\r |
851 | \r |
852 | if (TerminalDevice->TerminalType == VT100PlusType || \r |
853 | TerminalDevice->TerminalType == VTUTF8Type) {\r |
854 | switch (UnicodeChar) {\r |
855 | case '1': \r |
856 | Key.ScanCode = SCAN_F1; \r |
857 | break;\r |
858 | case '2': \r |
859 | Key.ScanCode = SCAN_F2; \r |
860 | break;\r |
861 | case '3': \r |
862 | Key.ScanCode = SCAN_F3; \r |
863 | break;\r |
864 | case '4': \r |
865 | Key.ScanCode = SCAN_F4; \r |
866 | break;\r |
867 | case '5': \r |
868 | Key.ScanCode = SCAN_F5; \r |
869 | break;\r |
870 | case '6': \r |
871 | Key.ScanCode = SCAN_F6; \r |
872 | break;\r |
873 | case '7': \r |
874 | Key.ScanCode = SCAN_F7; \r |
875 | break;\r |
876 | case '8': \r |
877 | Key.ScanCode = SCAN_F8; \r |
878 | break;\r |
879 | case '9': \r |
880 | Key.ScanCode = SCAN_F9; \r |
881 | break;\r |
882 | case '0': \r |
883 | Key.ScanCode = SCAN_F10; \r |
884 | break;\r |
885 | case 'h': \r |
886 | Key.ScanCode = SCAN_HOME; \r |
887 | break;\r |
888 | case 'k': \r |
889 | Key.ScanCode = SCAN_END; \r |
890 | break;\r |
891 | case '+': \r |
892 | Key.ScanCode = SCAN_INSERT; \r |
893 | break;\r |
894 | case '-': \r |
895 | Key.ScanCode = SCAN_DELETE; \r |
896 | break;\r |
897 | case '/': \r |
898 | Key.ScanCode = SCAN_PAGE_DOWN; \r |
899 | break;\r |
900 | case '?': \r |
901 | Key.ScanCode = SCAN_PAGE_UP; \r |
902 | break; \r |
903 | default : \r |
904 | break;\r |
905 | }\r |
906 | }\r |
907 | \r |
908 | switch (UnicodeChar) {\r |
909 | case 'R': \r |
910 | if (TerminalDevice->ResetState == RESET_STATE_DEFAULT) {\r |
911 | TerminalDevice->ResetState = RESET_STATE_ESC_R;\r |
912 | SetDefaultResetState = FALSE;\r |
913 | } else if (TerminalDevice->ResetState == RESET_STATE_ESC_R_ESC_r) {\r |
914 | gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);\r |
915 | }\r |
916 | Key.ScanCode = SCAN_NULL;\r |
917 | break;\r |
918 | case 'r': \r |
919 | if (TerminalDevice->ResetState == RESET_STATE_ESC_R) {\r |
920 | TerminalDevice->ResetState = RESET_STATE_ESC_R_ESC_r;\r |
921 | SetDefaultResetState = FALSE;\r |
922 | }\r |
923 | Key.ScanCode = SCAN_NULL;\r |
924 | break;\r |
925 | default : \r |
926 | break;\r |
927 | }\r |
928 | \r |
929 | if (SetDefaultResetState) {\r |
930 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r |
931 | }\r |
932 | \r |
933 | if (Key.ScanCode != SCAN_NULL) {\r |
934 | Key.UnicodeChar = 0;\r |
935 | EfiKeyFiFoInsertOneKey (TerminalDevice,Key);\r |
936 | TerminalDevice->InputState = INPUT_STATE_DEFAULT;\r |
937 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
938 | continue;\r |
939 | }\r |
940 | \r |
941 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
942 | \r |
943 | break;\r |
944 | \r |
945 | case INPUT_STATE_ESC | INPUT_STATE_O:\r |
946 | \r |
947 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r |
948 | \r |
949 | Key.ScanCode = SCAN_NULL;\r |
950 | \r |
951 | if (TerminalDevice->TerminalType == VT100Type) {\r |
952 | switch (UnicodeChar) {\r |
953 | case 'P': \r |
954 | Key.ScanCode = SCAN_F1; \r |
955 | break;\r |
956 | case 'Q': \r |
957 | Key.ScanCode = SCAN_F2; \r |
958 | break;\r |
959 | case 'w': \r |
960 | Key.ScanCode = SCAN_F3; \r |
961 | break;\r |
962 | case 'x': \r |
963 | Key.ScanCode = SCAN_F4; \r |
964 | break;\r |
965 | case 't': \r |
966 | Key.ScanCode = SCAN_F5; \r |
967 | break;\r |
968 | case 'u': \r |
969 | Key.ScanCode = SCAN_F6; \r |
970 | break;\r |
971 | case 'q': \r |
972 | Key.ScanCode = SCAN_F7; \r |
973 | break;\r |
974 | case 'r': \r |
975 | Key.ScanCode = SCAN_F8; \r |
976 | break;\r |
977 | case 'p': \r |
978 | Key.ScanCode = SCAN_F9; \r |
979 | break;\r |
980 | case 'M': \r |
981 | Key.ScanCode = SCAN_F10; \r |
982 | break;\r |
983 | default : \r |
984 | break;\r |
985 | }\r |
986 | }\r |
987 | \r |
988 | if (Key.ScanCode != SCAN_NULL) {\r |
989 | Key.UnicodeChar = 0;\r |
990 | EfiKeyFiFoInsertOneKey (TerminalDevice,Key);\r |
991 | TerminalDevice->InputState = INPUT_STATE_DEFAULT;\r |
992 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
993 | continue;\r |
994 | }\r |
995 | \r |
996 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
997 | \r |
998 | break;\r |
999 | \r |
1000 | case INPUT_STATE_ESC | INPUT_STATE_LEFTOPENBRACKET:\r |
1001 | \r |
1002 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r |
1003 | \r |
1004 | Key.ScanCode = SCAN_NULL;\r |
1005 | \r |
1006 | if (TerminalDevice->TerminalType == PcAnsiType ||\r |
1007 | TerminalDevice->TerminalType == VT100Type ||\r |
1008 | TerminalDevice->TerminalType == VT100PlusType || \r |
1009 | TerminalDevice->TerminalType == VTUTF8Type) {\r |
1010 | switch (UnicodeChar) {\r |
1011 | case 'A': \r |
1012 | Key.ScanCode = SCAN_UP; \r |
1013 | break;\r |
1014 | case 'B': \r |
1015 | Key.ScanCode = SCAN_DOWN; \r |
1016 | break;\r |
1017 | case 'C': \r |
1018 | Key.ScanCode = SCAN_RIGHT; \r |
1019 | break;\r |
1020 | case 'D': \r |
1021 | Key.ScanCode = SCAN_LEFT; \r |
1022 | break;\r |
1023 | case 'H': \r |
1024 | if (TerminalDevice->TerminalType == PcAnsiType ||\r |
1025 | TerminalDevice->TerminalType == VT100Type) {\r |
1026 | Key.ScanCode = SCAN_HOME; \r |
1027 | }\r |
1028 | break;\r |
1029 | case 'F': \r |
1030 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1031 | Key.ScanCode = SCAN_END;\r |
1032 | }\r |
1033 | break;\r |
1034 | case 'K': \r |
1035 | if (TerminalDevice->TerminalType == VT100Type) {\r |
1036 | Key.ScanCode = SCAN_END; \r |
1037 | }\r |
1038 | break;\r |
1039 | case 'L': \r |
1040 | case '@': \r |
1041 | if (TerminalDevice->TerminalType == PcAnsiType ||\r |
1042 | TerminalDevice->TerminalType == VT100Type) {\r |
1043 | Key.ScanCode = SCAN_INSERT; \r |
1044 | }\r |
1045 | break;\r |
1046 | case 'X': \r |
1047 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1048 | Key.ScanCode = SCAN_DELETE;\r |
1049 | }\r |
1050 | break;\r |
1051 | case 'P': \r |
1052 | if (TerminalDevice->TerminalType == VT100Type) {\r |
1053 | Key.ScanCode = SCAN_DELETE; \r |
1054 | } else if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1055 | Key.ScanCode = SCAN_F4;\r |
1056 | }\r |
1057 | break;\r |
1058 | case 'I': \r |
1059 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1060 | Key.ScanCode = SCAN_PAGE_UP;\r |
1061 | }\r |
1062 | break; \r |
1063 | case 'V': \r |
1064 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1065 | Key.ScanCode = SCAN_F10;\r |
1066 | } \r |
1067 | case '?': \r |
1068 | if (TerminalDevice->TerminalType == VT100Type) {\r |
1069 | Key.ScanCode = SCAN_PAGE_UP; \r |
1070 | }\r |
1071 | break;\r |
1072 | case 'G': \r |
1073 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1074 | Key.ScanCode = SCAN_PAGE_DOWN;\r |
1075 | }\r |
1076 | break; \r |
1077 | case 'U': \r |
1078 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1079 | Key.ScanCode = SCAN_F9;\r |
1080 | }\r |
1081 | case '/': \r |
1082 | if (TerminalDevice->TerminalType == VT100Type) {\r |
1083 | Key.ScanCode = SCAN_PAGE_DOWN; \r |
1084 | }\r |
1085 | break;\r |
1086 | case 'M': \r |
1087 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1088 | Key.ScanCode = SCAN_F1;\r |
1089 | }\r |
1090 | break; \r |
1091 | case 'N': \r |
1092 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1093 | Key.ScanCode = SCAN_F2;\r |
1094 | }\r |
1095 | break; \r |
1096 | case 'O': \r |
1097 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1098 | Key.ScanCode = SCAN_F3;\r |
1099 | }\r |
1100 | break; \r |
1101 | case 'Q': \r |
1102 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1103 | Key.ScanCode = SCAN_F5;\r |
1104 | }\r |
1105 | break; \r |
1106 | case 'R': \r |
1107 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1108 | Key.ScanCode = SCAN_F6;\r |
1109 | }\r |
1110 | break; \r |
1111 | case 'S': \r |
1112 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1113 | Key.ScanCode = SCAN_F7;\r |
1114 | }\r |
1115 | break; \r |
1116 | case 'T': \r |
1117 | if (TerminalDevice->TerminalType == PcAnsiType) {\r |
1118 | Key.ScanCode = SCAN_F8;\r |
1119 | }\r |
1120 | break; \r |
1121 | default : \r |
1122 | break;\r |
1123 | }\r |
1124 | }\r |
1125 | \r |
1126 | if (Key.ScanCode != SCAN_NULL) {\r |
1127 | Key.UnicodeChar = 0;\r |
1128 | EfiKeyFiFoInsertOneKey (TerminalDevice,Key);\r |
1129 | TerminalDevice->InputState = INPUT_STATE_DEFAULT;\r |
1130 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
1131 | continue;\r |
1132 | }\r |
1133 | \r |
1134 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
1135 | \r |
1136 | break;\r |
1137 | \r |
1138 | \r |
1139 | default:\r |
1140 | //\r |
1141 | // Invalid state. This should never happen.\r |
1142 | //\r |
1143 | ASSERT (FALSE);\r |
1144 | \r |
1145 | UnicodeToEfiKeyFlushState (TerminalDevice);\r |
1146 | \r |
1147 | break;\r |
1148 | }\r |
1149 | \r |
1150 | if (UnicodeChar == ESC) {\r |
1151 | TerminalDevice->InputState = INPUT_STATE_ESC;\r |
1152 | }\r |
1153 | \r |
1154 | if (TerminalDevice->InputState != INPUT_STATE_DEFAULT) {\r |
1155 | Status = gBS->SetTimer(\r |
1156 | TerminalDevice->TwoSecondTimeOut,\r |
1157 | TimerRelative,\r |
1158 | (UINT64)20000000\r |
1159 | );\r |
1160 | ASSERT_EFI_ERROR (Status);\r |
1161 | continue;\r |
1162 | }\r |
1163 | \r |
1164 | if (SetDefaultResetState) {\r |
1165 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r |
1166 | }\r |
1167 | \r |
1168 | if (UnicodeChar == DEL) {\r |
1169 | Key.ScanCode = SCAN_DELETE;\r |
1170 | Key.UnicodeChar = 0;\r |
1171 | } else {\r |
1172 | Key.ScanCode = SCAN_NULL;\r |
1173 | Key.UnicodeChar = UnicodeChar;\r |
1174 | }\r |
1175 | \r |
1176 | EfiKeyFiFoInsertOneKey (TerminalDevice,Key);\r |
1177 | }\r |
1178 | }\r |