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1 | /**@file\r | |
2 | PS/2 Keyboard driver\r | |
3 | Routines that support SIMPLE_TEXT_IN protocol\r | |
4 | \r | |
5 | Copyright (c) 2006 - 2007, Intel Corporation\r | |
6 | All rights reserved. This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | \r | |
17 | #include "Ps2Keyboard.h"\r | |
18 | \r | |
19 | //\r | |
20 | // function declarations\r | |
21 | //\r | |
22 | EFI_STATUS\r | |
23 | EFIAPI\r | |
24 | KeyboardEfiReset (\r | |
25 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
26 | IN BOOLEAN ExtendedVerification\r | |
27 | );\r | |
28 | \r | |
29 | EFI_STATUS\r | |
30 | EFIAPI\r | |
31 | KeyboardReadKeyStroke (\r | |
32 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
33 | OUT EFI_INPUT_KEY *Key\r | |
34 | );\r | |
35 | \r | |
36 | VOID\r | |
37 | EFIAPI\r | |
38 | KeyboardWaitForKey (\r | |
39 | IN EFI_EVENT Event,\r | |
40 | IN VOID *Context\r | |
41 | );\r | |
42 | \r | |
43 | EFI_STATUS\r | |
44 | KeyboardCheckForKey (\r | |
45 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This\r | |
46 | );\r | |
47 | \r | |
48 | /**\r | |
49 | @param RegsiteredData - A pointer to a buffer that is filled in with the keystroke \r | |
50 | state data for the key that was registered.\r | |
51 | @param InputData - A pointer to a buffer that is filled in with the keystroke \r | |
52 | state data for the key that was pressed.\r | |
53 | \r | |
54 | @retval TRUE - Key be pressed matches a registered key.\r | |
55 | @retval FALSE - Match failed. \r | |
56 | \r | |
57 | **/\r | |
58 | BOOLEAN\r | |
59 | IsKeyRegistered (\r | |
60 | IN EFI_KEY_DATA *RegsiteredData,\r | |
61 | IN EFI_KEY_DATA *InputData\r | |
62 | );\r | |
63 | \r | |
64 | /**\r | |
65 | Reads the next keystroke from the input device. The WaitForKey Event can \r | |
66 | be used to test for existance of a keystroke via WaitForEvent () call.\r | |
67 | \r | |
68 | \r | |
69 | @param ConsoleInDev - Ps2 Keyboard private structure\r | |
70 | @param KeyData - A pointer to a buffer that is filled in with the keystroke \r | |
71 | state data for the key that was pressed.\r | |
72 | \r | |
73 | \r | |
74 | @retval EFI_SUCCESS - The keystroke information was returned.\r | |
75 | @retval EFI_NOT_READY - There was no keystroke data availiable.\r | |
76 | @retval EFI_DEVICE_ERROR - The keystroke information was not returned due to \r | |
77 | hardware errors.\r | |
78 | @retval EFI_INVALID_PARAMETER - KeyData is NULL. \r | |
79 | \r | |
80 | **/\r | |
81 | EFI_STATUS\r | |
82 | KeyboardReadKeyStrokeWorker (\r | |
83 | IN KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev,\r | |
84 | OUT EFI_KEY_DATA *KeyData\r | |
85 | )\r | |
86 | \r | |
87 | {\r | |
88 | EFI_STATUS Status;\r | |
89 | EFI_TPL OldTpl;\r | |
90 | LIST_ENTRY *Link;\r | |
91 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;\r | |
92 | EFI_KEY_DATA OriginalKeyData;\r | |
93 | if (KeyData == NULL) {\r | |
94 | return EFI_INVALID_PARAMETER;\r | |
95 | }\r | |
96 | \r | |
97 | //\r | |
98 | // Enter critical section\r | |
99 | //\r | |
100 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
101 | \r | |
102 | if (ConsoleInDev->KeyboardErr) {\r | |
103 | gBS->RestoreTPL (OldTpl);\r | |
104 | return EFI_DEVICE_ERROR;\r | |
105 | }\r | |
106 | //\r | |
107 | // If there's no key, just return\r | |
108 | //\r | |
109 | Status = KeyboardCheckForKey (&ConsoleInDev->ConIn);\r | |
110 | if (EFI_ERROR (Status)) {\r | |
111 | gBS->RestoreTPL (OldTpl);\r | |
112 | return EFI_NOT_READY;\r | |
113 | }\r | |
114 | CopyMem (&KeyData->Key, &ConsoleInDev->Key, sizeof (EFI_INPUT_KEY));\r | |
115 | \r | |
116 | ConsoleInDev->Key.ScanCode = SCAN_NULL; \r | |
117 | ConsoleInDev->Key.UnicodeChar = 0x0000; \r | |
118 | CopyMem (&KeyData->KeyState, &ConsoleInDev->KeyState, sizeof (EFI_KEY_STATE));\r | |
119 | \r | |
120 | ConsoleInDev->KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID;\r | |
121 | ConsoleInDev->KeyState.KeyToggleState = EFI_TOGGLE_STATE_VALID;\r | |
122 | gBS->RestoreTPL (OldTpl);\r | |
123 | //\r | |
124 | //Switch the control value to their original characters. In KeyGetchar() the CTRL-Alpha characters have been switched to \r | |
125 | // their corresponding control value (ctrl-a = 0x0001 through ctrl-Z = 0x001A), here switch them back for notification function.\r | |
126 | //\r | |
127 | CopyMem (&OriginalKeyData, KeyData, sizeof (EFI_KEY_DATA));\r | |
128 | if (ConsoleInDev->Ctrled) {\r | |
129 | if (OriginalKeyData.Key.UnicodeChar >= 0x01 && OriginalKeyData.Key.UnicodeChar <= 0x1A) {\r | |
130 | if (ConsoleInDev->CapsLock) {\r | |
131 | OriginalKeyData.Key.UnicodeChar = (CHAR16)(OriginalKeyData.Key.UnicodeChar + 'A' - 1);\r | |
132 | } else {\r | |
133 | OriginalKeyData.Key.UnicodeChar = (CHAR16)(OriginalKeyData.Key.UnicodeChar + 'a' - 1);\r | |
134 | } \r | |
135 | }\r | |
136 | }\r | |
137 | //\r | |
138 | // Invoke notification functions if exist\r | |
139 | //\r | |
140 | for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {\r | |
141 | CurrentNotify = CR (\r | |
142 | Link, \r | |
143 | KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r | |
144 | NotifyEntry, \r | |
145 | KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r | |
146 | );\r | |
147 | if (IsKeyRegistered (&CurrentNotify->KeyData, &OriginalKeyData)) { \r | |
148 | CurrentNotify->KeyNotificationFn (&OriginalKeyData);\r | |
149 | }\r | |
150 | }\r | |
151 | \r | |
152 | return EFI_SUCCESS;\r | |
153 | }\r | |
154 | \r | |
155 | /**\r | |
156 | logic reset keyboard\r | |
157 | Implement SIMPLE_TEXT_IN.Reset()\r | |
158 | Perform 8042 controller and keyboard initialization\r | |
159 | \r | |
160 | @param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r | |
161 | @param ExtendedVerification Indicate that the driver may perform a more \r | |
162 | exhaustive verification operation of the device during \r | |
163 | reset, now this par is ignored in this driver \r | |
164 | \r | |
165 | **/\r | |
166 | EFI_STATUS\r | |
167 | EFIAPI\r | |
168 | KeyboardEfiReset (\r | |
169 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
170 | IN BOOLEAN ExtendedVerification\r | |
171 | )\r | |
172 | {\r | |
173 | EFI_STATUS Status;\r | |
174 | KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r | |
175 | EFI_TPL OldTpl;\r | |
176 | \r | |
177 | ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r | |
178 | if (ConsoleIn->KeyboardErr) {\r | |
179 | return EFI_DEVICE_ERROR;\r | |
180 | }\r | |
181 | \r | |
182 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
183 | EFI_PROGRESS_CODE,\r | |
184 | EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_RESET,\r | |
185 | ConsoleIn->DevicePath\r | |
186 | );\r | |
187 | \r | |
188 | //\r | |
189 | // Enter critical section\r | |
190 | //\r | |
191 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
192 | \r | |
193 | //\r | |
194 | // Call InitKeyboard to initialize the keyboard\r | |
195 | //\r | |
196 | Status = InitKeyboard (ConsoleIn, ExtendedVerification);\r | |
197 | if (EFI_ERROR (Status)) {\r | |
198 | //\r | |
199 | // Leave critical section and return\r | |
200 | //\r | |
201 | gBS->RestoreTPL (OldTpl);\r | |
202 | return EFI_DEVICE_ERROR;\r | |
203 | }\r | |
204 | //\r | |
205 | // Clear the status of ConsoleIn.Key\r | |
206 | //\r | |
207 | ConsoleIn->Key.ScanCode = SCAN_NULL;\r | |
208 | ConsoleIn->Key.UnicodeChar = 0x0000;\r | |
209 | \r | |
210 | //\r | |
211 | // Leave critical section and return\r | |
212 | //\r | |
213 | gBS->RestoreTPL (OldTpl);\r | |
214 | \r | |
215 | //\r | |
216 | // Report the status If a stuck key was detected\r | |
217 | //\r | |
218 | if (KeyReadStatusRegister (ConsoleIn) & 0x01) {\r | |
219 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
220 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
221 | EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_EC_STUCK_KEY,\r | |
222 | ConsoleIn->DevicePath\r | |
223 | );\r | |
224 | }\r | |
225 | //\r | |
226 | // Report the status If keyboard is locked\r | |
227 | //\r | |
228 | if (!(KeyReadStatusRegister (ConsoleIn) & 0x10)) {\r | |
229 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
230 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
231 | EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_EC_LOCKED,\r | |
232 | ConsoleIn->DevicePath\r | |
233 | );\r | |
234 | }\r | |
235 | \r | |
236 | return EFI_SUCCESS;\r | |
237 | }\r | |
238 | \r | |
239 | /**\r | |
240 | Implement SIMPLE_TEXT_IN.ReadKeyStroke().\r | |
241 | Retrieve key values for driver user.\r | |
242 | \r | |
243 | @param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r | |
244 | @param Key The output buffer for key value \r | |
245 | \r | |
246 | @retval EFI_SUCCESS success to read key stroke\r | |
247 | **/\r | |
248 | EFI_STATUS\r | |
249 | EFIAPI\r | |
250 | KeyboardReadKeyStroke (\r | |
251 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
252 | OUT EFI_INPUT_KEY *Key\r | |
253 | )\r | |
254 | {\r | |
255 | EFI_STATUS Status;\r | |
256 | KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r | |
257 | EFI_KEY_DATA KeyData;\r | |
258 | \r | |
259 | ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r | |
260 | Status = KeyboardReadKeyStrokeWorker (ConsoleIn, &KeyData);\r | |
261 | if (EFI_ERROR (Status)) {\r | |
262 | return Status;\r | |
263 | }\r | |
264 | \r | |
265 | CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));\r | |
266 | return EFI_SUCCESS;\r | |
267 | \r | |
268 | }\r | |
269 | \r | |
270 | /**\r | |
271 | Event notification function for SIMPLE_TEXT_IN.WaitForKey event\r | |
272 | Signal the event if there is key available\r | |
273 | \r | |
274 | @param Event the event object\r | |
275 | @param Context waitting context\r | |
276 | \r | |
277 | **/\r | |
278 | VOID\r | |
279 | EFIAPI\r | |
280 | KeyboardWaitForKey (\r | |
281 | IN EFI_EVENT Event,\r | |
282 | IN VOID *Context\r | |
283 | )\r | |
284 | {\r | |
285 | EFI_TPL OldTpl;\r | |
286 | KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r | |
287 | \r | |
288 | ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (Context);\r | |
289 | \r | |
290 | //\r | |
291 | // Enter critical section\r | |
292 | //\r | |
293 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
294 | \r | |
295 | if (ConsoleIn->KeyboardErr) {\r | |
296 | //\r | |
297 | // Leave critical section and return\r | |
298 | //\r | |
299 | gBS->RestoreTPL (OldTpl);\r | |
300 | return ;\r | |
301 | }\r | |
302 | //\r | |
303 | // Someone is waiting on the keyboard event, if there's\r | |
304 | // a key pending, signal the event\r | |
305 | //\r | |
306 | if (!EFI_ERROR (KeyboardCheckForKey (Context))) {\r | |
307 | gBS->SignalEvent (Event);\r | |
308 | }\r | |
309 | //\r | |
310 | // Leave critical section and return\r | |
311 | //\r | |
312 | gBS->RestoreTPL (OldTpl);\r | |
313 | \r | |
314 | return ;\r | |
315 | }\r | |
316 | \r | |
317 | /**\r | |
318 | Check keyboard for given key value\r | |
319 | \r | |
320 | @param This Point to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r | |
321 | \r | |
322 | @retval EFI_SUCCESS success check keyboard value\r | |
323 | **/\r | |
324 | EFI_STATUS\r | |
325 | KeyboardCheckForKey (\r | |
326 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This\r | |
327 | )\r | |
328 | {\r | |
329 | KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r | |
330 | \r | |
331 | ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r | |
332 | \r | |
333 | //\r | |
334 | // If ready to read next key, check it\r | |
335 | //\r | |
336 | if (ConsoleIn->Key.ScanCode == SCAN_NULL && ConsoleIn->Key.UnicodeChar == 0x00) {\r | |
337 | return KeyGetchar (ConsoleIn);\r | |
338 | }\r | |
339 | \r | |
340 | return EFI_SUCCESS;\r | |
341 | }\r | |
342 | \r | |
343 | /**\r | |
344 | Judge whether is a registed key\r | |
345 | \r | |
346 | @param RegsiteredData - A pointer to a buffer that is filled in with the keystroke \r | |
347 | state data for the key that was registered.\r | |
348 | @param InputData - A pointer to a buffer that is filled in with the keystroke \r | |
349 | state data for the key that was pressed.\r | |
350 | \r | |
351 | @retval TRUE - Key be pressed matches a registered key.\r | |
352 | @retval FLASE - Match failed. \r | |
353 | \r | |
354 | **/\r | |
355 | BOOLEAN\r | |
356 | IsKeyRegistered (\r | |
357 | IN EFI_KEY_DATA *RegsiteredData,\r | |
358 | IN EFI_KEY_DATA *InputData\r | |
359 | )\r | |
360 | \r | |
361 | {\r | |
362 | ASSERT (RegsiteredData != NULL && InputData != NULL);\r | |
363 | \r | |
364 | if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||\r | |
365 | (RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {\r | |
366 | return FALSE; \r | |
367 | } \r | |
368 | \r | |
369 | //\r | |
370 | // Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.\r | |
371 | //\r | |
372 | if (RegsiteredData->KeyState.KeyShiftState != 0 &&\r | |
373 | RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState) {\r | |
374 | return FALSE; \r | |
375 | } \r | |
376 | if (RegsiteredData->KeyState.KeyToggleState != 0 &&\r | |
377 | RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState) {\r | |
378 | return FALSE; \r | |
379 | } \r | |
380 | \r | |
381 | return TRUE;\r | |
382 | \r | |
383 | }\r | |
384 | \r | |
385 | /**\r | |
386 | Event notification function for SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event\r | |
387 | Signal the event if there is key available\r | |
388 | \r | |
389 | @param Event event object\r | |
390 | @param Context waiting context\r | |
391 | \r | |
392 | **/\r | |
393 | VOID\r | |
394 | EFIAPI\r | |
395 | KeyboardWaitForKeyEx (\r | |
396 | IN EFI_EVENT Event,\r | |
397 | IN VOID *Context\r | |
398 | )\r | |
399 | \r | |
400 | {\r | |
401 | KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r | |
402 | \r | |
403 | ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (Context); \r | |
404 | KeyboardWaitForKey (Event, &ConsoleInDev->ConIn);\r | |
405 | \r | |
406 | }\r | |
407 | \r | |
408 | /**\r | |
409 | Reset the input device and optionaly run diagnostics\r | |
410 | \r | |
411 | @param This - Protocol instance pointer.\r | |
412 | @param ExtendedVerification - Driver may perform diagnostics on reset.\r | |
413 | \r | |
414 | @retval EFI_SUCCESS - The device was reset.\r | |
415 | @retval EFI_DEVICE_ERROR - The device is not functioning properly and could \r | |
416 | not be reset.\r | |
417 | \r | |
418 | **/\r | |
419 | EFI_STATUS\r | |
420 | EFIAPI\r | |
421 | KeyboardEfiResetEx (\r | |
422 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
423 | IN BOOLEAN ExtendedVerification\r | |
424 | )\r | |
425 | \r | |
426 | {\r | |
427 | EFI_STATUS Status;\r | |
428 | KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r | |
429 | EFI_TPL OldTpl;\r | |
430 | \r | |
431 | ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This); \r | |
432 | if (ConsoleInDev->KeyboardErr) {\r | |
433 | return EFI_DEVICE_ERROR;\r | |
434 | }\r | |
435 | \r | |
436 | Status = ConsoleInDev->ConIn.Reset (\r | |
437 | &ConsoleInDev->ConIn, \r | |
438 | ExtendedVerification\r | |
439 | );\r | |
440 | if (EFI_ERROR (Status)) {\r | |
441 | return EFI_DEVICE_ERROR;\r | |
442 | }\r | |
443 | \r | |
444 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
445 | \r | |
446 | ConsoleInDev->KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID;\r | |
447 | ConsoleInDev->KeyState.KeyToggleState = EFI_TOGGLE_STATE_VALID;\r | |
448 | \r | |
449 | gBS->RestoreTPL (OldTpl); \r | |
450 | \r | |
451 | return EFI_SUCCESS;\r | |
452 | }\r | |
453 | \r | |
454 | /**\r | |
455 | Reads the next keystroke from the input device. The WaitForKey Event can \r | |
456 | be used to test for existance of a keystroke via WaitForEvent () call.\r | |
457 | \r | |
458 | \r | |
459 | @param This - Protocol instance pointer.\r | |
460 | @param KeyData - A pointer to a buffer that is filled in with the keystroke \r | |
461 | state data for the key that was pressed.\r | |
462 | \r | |
463 | @retval EFI_SUCCESS - The keystroke information was returned.\r | |
464 | @retval EFI_NOT_READY - There was no keystroke data availiable.\r | |
465 | @retval EFI_DEVICE_ERROR - The keystroke information was not returned due to \r | |
466 | hardware errors.\r | |
467 | @retval EFI_INVALID_PARAMETER - KeyData is NULL. \r | |
468 | \r | |
469 | **/\r | |
470 | EFI_STATUS\r | |
471 | EFIAPI\r | |
472 | KeyboardReadKeyStrokeEx (\r | |
473 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
474 | OUT EFI_KEY_DATA *KeyData\r | |
475 | )\r | |
476 | \r | |
477 | {\r | |
478 | KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r | |
479 | \r | |
480 | if (KeyData == NULL) {\r | |
481 | return EFI_INVALID_PARAMETER;\r | |
482 | }\r | |
483 | \r | |
484 | ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r | |
485 | return KeyboardReadKeyStrokeWorker (ConsoleInDev, KeyData);\r | |
486 | \r | |
487 | }\r | |
488 | \r | |
489 | /**\r | |
490 | Set certain state for the input device.\r | |
491 | \r | |
492 | @param This - Protocol instance pointer.\r | |
493 | @param KeyToggleState - A pointer to the EFI_KEY_TOGGLE_STATE to set the \r | |
494 | state for the input device.\r | |
495 | \r | |
496 | @retval EFI_SUCCESS - The device state was set successfully.\r | |
497 | @retval EFI_DEVICE_ERROR - The device is not functioning correctly and could \r | |
498 | not have the setting adjusted.\r | |
499 | @retval EFI_UNSUPPORTED - The device does not have the ability to set its state.\r | |
500 | @retval EFI_INVALID_PARAMETER - KeyToggleState is NULL. \r | |
501 | \r | |
502 | **/ \r | |
503 | EFI_STATUS\r | |
504 | EFIAPI\r | |
505 | KeyboardSetState (\r | |
506 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
507 | IN EFI_KEY_TOGGLE_STATE *KeyToggleState\r | |
508 | )\r | |
509 | \r | |
510 | {\r | |
511 | EFI_STATUS Status;\r | |
512 | KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r | |
513 | EFI_TPL OldTpl;\r | |
514 | \r | |
515 | if (KeyToggleState == NULL) {\r | |
516 | return EFI_INVALID_PARAMETER;\r | |
517 | }\r | |
518 | \r | |
519 | ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r | |
520 | \r | |
521 | //\r | |
522 | // Enter critical section\r | |
523 | //\r | |
524 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
525 | \r | |
526 | if (ConsoleInDev->KeyboardErr) {\r | |
527 | Status = EFI_DEVICE_ERROR;\r | |
528 | goto Exit;\r | |
529 | }\r | |
530 | \r | |
531 | if (((ConsoleInDev->KeyState.KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) ||\r | |
532 | ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID)) {\r | |
533 | Status = EFI_UNSUPPORTED;\r | |
534 | goto Exit;\r | |
535 | }\r | |
536 | \r | |
537 | //\r | |
538 | // Update the status light\r | |
539 | //\r | |
540 | ConsoleInDev->ScrollLock = FALSE;\r | |
541 | ConsoleInDev->NumLock = FALSE;\r | |
542 | ConsoleInDev->CapsLock = FALSE;\r | |
543 | \r | |
544 | if ((*KeyToggleState & EFI_SCROLL_LOCK_ACTIVE) == EFI_SCROLL_LOCK_ACTIVE) {\r | |
545 | ConsoleInDev->ScrollLock = TRUE;\r | |
546 | } \r | |
547 | if ((*KeyToggleState & EFI_NUM_LOCK_ACTIVE) == EFI_NUM_LOCK_ACTIVE) {\r | |
548 | ConsoleInDev->NumLock = TRUE;\r | |
549 | }\r | |
550 | if ((*KeyToggleState & EFI_CAPS_LOCK_ACTIVE) == EFI_CAPS_LOCK_ACTIVE) {\r | |
551 | ConsoleInDev->CapsLock = TRUE;\r | |
552 | }\r | |
553 | \r | |
554 | Status = UpdateStatusLights (ConsoleInDev);\r | |
555 | if (EFI_ERROR (Status)) {\r | |
556 | Status = EFI_DEVICE_ERROR; \r | |
557 | }\r | |
558 | \r | |
559 | ConsoleInDev->KeyState.KeyToggleState = *KeyToggleState;\r | |
560 | \r | |
561 | Exit: \r | |
562 | //\r | |
563 | // Leave critical section and return\r | |
564 | //\r | |
565 | gBS->RestoreTPL (OldTpl);\r | |
566 | \r | |
567 | return Status;\r | |
568 | \r | |
569 | }\r | |
570 | \r | |
571 | /**\r | |
572 | Register a notification function for a particular keystroke for the input device.\r | |
573 | \r | |
574 | @param This - Protocol instance pointer.\r | |
575 | @param KeyData - A pointer to a buffer that is filled in with the keystroke \r | |
576 | information data for the key that was pressed.\r | |
577 | @param KeyNotificationFunction - Points to the function to be called when the key \r | |
578 | sequence is typed specified by KeyData. \r | |
579 | @param NotifyHandle - Points to the unique handle assigned to the registered notification. \r | |
580 | \r | |
581 | @retval EFI_SUCCESS - The notification function was registered successfully.\r | |
582 | @retval EFI_OUT_OF_RESOURCES - Unable to allocate resources for necesssary data structures.\r | |
583 | @retval EFI_INVALID_PARAMETER - KeyData or NotifyHandle is NULL. \r | |
584 | \r | |
585 | **/ \r | |
586 | EFI_STATUS\r | |
587 | EFIAPI\r | |
588 | KeyboardRegisterKeyNotify (\r | |
589 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
590 | IN EFI_KEY_DATA *KeyData,\r | |
591 | IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,\r | |
592 | OUT EFI_HANDLE *NotifyHandle\r | |
593 | )\r | |
594 | {\r | |
595 | EFI_STATUS Status;\r | |
596 | KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r | |
597 | EFI_TPL OldTpl;\r | |
598 | LIST_ENTRY *Link;\r | |
599 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify; \r | |
600 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *NewNotify;\r | |
601 | \r | |
602 | if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {\r | |
603 | return EFI_INVALID_PARAMETER;\r | |
604 | }\r | |
605 | \r | |
606 | ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r | |
607 | \r | |
608 | //\r | |
609 | // Enter critical section\r | |
610 | //\r | |
611 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
612 | \r | |
613 | //\r | |
614 | // Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.\r | |
615 | //\r | |
616 | for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {\r | |
617 | CurrentNotify = CR (\r | |
618 | Link, \r | |
619 | KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r | |
620 | NotifyEntry, \r | |
621 | KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r | |
622 | );\r | |
623 | if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) { \r | |
624 | if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {\r | |
625 | *NotifyHandle = CurrentNotify->NotifyHandle; \r | |
626 | Status = EFI_SUCCESS;\r | |
627 | goto Exit;\r | |
628 | }\r | |
629 | }\r | |
630 | } \r | |
631 | \r | |
632 | //\r | |
633 | // Allocate resource to save the notification function\r | |
634 | // \r | |
635 | NewNotify = (KEYBOARD_CONSOLE_IN_EX_NOTIFY *) AllocateZeroPool (sizeof (KEYBOARD_CONSOLE_IN_EX_NOTIFY));\r | |
636 | if (NewNotify == NULL) {\r | |
637 | Status = EFI_OUT_OF_RESOURCES;\r | |
638 | goto Exit;\r | |
639 | }\r | |
640 | \r | |
641 | NewNotify->Signature = KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE; \r | |
642 | NewNotify->KeyNotificationFn = KeyNotificationFunction;\r | |
643 | NewNotify->NotifyHandle = (EFI_HANDLE) NewNotify;\r | |
644 | CopyMem (&NewNotify->KeyData, KeyData, sizeof (EFI_KEY_DATA));\r | |
645 | InsertTailList (&ConsoleInDev->NotifyList, &NewNotify->NotifyEntry);\r | |
646 | \r | |
647 | *NotifyHandle = NewNotify->NotifyHandle; \r | |
648 | Status = EFI_SUCCESS;\r | |
649 | \r | |
650 | Exit:\r | |
651 | //\r | |
652 | // Leave critical section and return\r | |
653 | //\r | |
654 | gBS->RestoreTPL (OldTpl);\r | |
655 | return Status; \r | |
656 | \r | |
657 | }\r | |
658 | \r | |
659 | /**\r | |
660 | Remove a registered notification function from a particular keystroke.\r | |
661 | \r | |
662 | @param This - Protocol instance pointer. \r | |
663 | @param NotificationHandle - The handle of the notification function being unregistered.\r | |
664 | \r | |
665 | \r | |
666 | @retval EFI_SUCCESS - The notification function was unregistered successfully.\r | |
667 | @retval EFI_INVALID_PARAMETER - The NotificationHandle is invalid.\r | |
668 | @retval EFI_NOT_FOUND - Can not find the matching entry in database. \r | |
669 | \r | |
670 | **/ \r | |
671 | EFI_STATUS\r | |
672 | EFIAPI\r | |
673 | KeyboardUnregisterKeyNotify (\r | |
674 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
675 | IN EFI_HANDLE NotificationHandle\r | |
676 | )\r | |
677 | {\r | |
678 | EFI_STATUS Status;\r | |
679 | KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r | |
680 | EFI_TPL OldTpl;\r | |
681 | LIST_ENTRY *Link;\r | |
682 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify; \r | |
683 | \r | |
684 | if (NotificationHandle == NULL) {\r | |
685 | return EFI_INVALID_PARAMETER;\r | |
686 | } \r | |
687 | \r | |
688 | ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r | |
689 | \r | |
690 | //\r | |
691 | // Enter critical section\r | |
692 | //\r | |
693 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY); \r | |
694 | \r | |
695 | for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {\r | |
696 | CurrentNotify = CR (\r | |
697 | Link, \r | |
698 | KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r | |
699 | NotifyEntry, \r | |
700 | KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r | |
701 | ); \r | |
702 | if (CurrentNotify->NotifyHandle == NotificationHandle) {\r | |
703 | //\r | |
704 | // Remove the notification function from NotifyList and free resources\r | |
705 | //\r | |
706 | RemoveEntryList (&CurrentNotify->NotifyEntry); \r | |
707 | \r | |
708 | gBS->FreePool (CurrentNotify); \r | |
709 | Status = EFI_SUCCESS;\r | |
710 | goto Exit;\r | |
711 | }\r | |
712 | }\r | |
713 | \r | |
714 | //\r | |
715 | // Can not find the specified Notification Handle\r | |
716 | //\r | |
717 | Status = EFI_NOT_FOUND;\r | |
718 | Exit:\r | |
719 | //\r | |
720 | // Leave critical section and return\r | |
721 | //\r | |
722 | gBS->RestoreTPL (OldTpl);\r | |
723 | return Status;\r | |
724 | }\r | |
725 | \r |