]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | USB Keyboard Driver that manages USB keyboard and produces Simple Text Input\r | |
3 | Protocol and Simple Text Input Ex Protocol.\r | |
4 | \r | |
5 | Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>\r | |
6 | 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 | #include "EfiKey.h"\r | |
17 | #include "KeyBoard.h"\r | |
18 | \r | |
19 | //\r | |
20 | // USB Keyboard Driver Global Variables\r | |
21 | //\r | |
22 | EFI_DRIVER_BINDING_PROTOCOL gUsbKeyboardDriverBinding = {\r | |
23 | USBKeyboardDriverBindingSupported,\r | |
24 | USBKeyboardDriverBindingStart,\r | |
25 | USBKeyboardDriverBindingStop,\r | |
26 | 0xa,\r | |
27 | NULL,\r | |
28 | NULL\r | |
29 | };\r | |
30 | \r | |
31 | /**\r | |
32 | Entrypoint of USB Keyboard Driver.\r | |
33 | \r | |
34 | This function is the entrypoint of USB Keyboard Driver. It installs Driver Binding\r | |
35 | Protocols together with Component Name Protocols.\r | |
36 | \r | |
37 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
38 | @param SystemTable A pointer to the EFI System Table.\r | |
39 | \r | |
40 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
41 | \r | |
42 | **/\r | |
43 | EFI_STATUS\r | |
44 | EFIAPI\r | |
45 | USBKeyboardDriverBindingEntryPoint (\r | |
46 | IN EFI_HANDLE ImageHandle,\r | |
47 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
48 | )\r | |
49 | {\r | |
50 | EFI_STATUS Status;\r | |
51 | \r | |
52 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
53 | ImageHandle,\r | |
54 | SystemTable,\r | |
55 | &gUsbKeyboardDriverBinding,\r | |
56 | ImageHandle,\r | |
57 | &gUsbKeyboardComponentName,\r | |
58 | &gUsbKeyboardComponentName2\r | |
59 | );\r | |
60 | ASSERT_EFI_ERROR (Status);\r | |
61 | \r | |
62 | return EFI_SUCCESS;\r | |
63 | }\r | |
64 | \r | |
65 | /**\r | |
66 | Check whether USB keyboard driver supports this device.\r | |
67 | \r | |
68 | @param This The USB keyboard driver binding protocol.\r | |
69 | @param Controller The controller handle to check.\r | |
70 | @param RemainingDevicePath The remaining device path.\r | |
71 | \r | |
72 | @retval EFI_SUCCESS The driver supports this controller.\r | |
73 | @retval other This device isn't supported.\r | |
74 | \r | |
75 | **/\r | |
76 | EFI_STATUS\r | |
77 | EFIAPI\r | |
78 | USBKeyboardDriverBindingSupported (\r | |
79 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
80 | IN EFI_HANDLE Controller,\r | |
81 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
82 | )\r | |
83 | {\r | |
84 | EFI_STATUS Status;\r | |
85 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
86 | \r | |
87 | //\r | |
88 | // Check if USB I/O Protocol is attached on the controller handle.\r | |
89 | //\r | |
90 | Status = gBS->OpenProtocol (\r | |
91 | Controller,\r | |
92 | &gEfiUsbIoProtocolGuid,\r | |
93 | (VOID **) &UsbIo,\r | |
94 | This->DriverBindingHandle,\r | |
95 | Controller,\r | |
96 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
97 | );\r | |
98 | if (EFI_ERROR (Status)) {\r | |
99 | return Status;\r | |
100 | }\r | |
101 | \r | |
102 | //\r | |
103 | // Use the USB I/O Protocol interface to check whether Controller is\r | |
104 | // a keyboard device that can be managed by this driver.\r | |
105 | //\r | |
106 | Status = EFI_SUCCESS;\r | |
107 | \r | |
108 | if (!IsUSBKeyboard (UsbIo)) {\r | |
109 | Status = EFI_UNSUPPORTED;\r | |
110 | }\r | |
111 | \r | |
112 | gBS->CloseProtocol (\r | |
113 | Controller,\r | |
114 | &gEfiUsbIoProtocolGuid,\r | |
115 | This->DriverBindingHandle,\r | |
116 | Controller\r | |
117 | );\r | |
118 | \r | |
119 | return Status;\r | |
120 | }\r | |
121 | \r | |
122 | /**\r | |
123 | Starts the keyboard device with this driver.\r | |
124 | \r | |
125 | This function produces Simple Text Input Protocol and Simple Text Input Ex Protocol,\r | |
126 | initializes the keyboard device, and submit Asynchronous Interrupt Transfer to manage\r | |
127 | this keyboard device.\r | |
128 | \r | |
129 | @param This The USB keyboard driver binding instance.\r | |
130 | @param Controller Handle of device to bind driver to.\r | |
131 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
132 | device to start.\r | |
133 | \r | |
134 | @retval EFI_SUCCESS The controller is controlled by the usb keyboard driver.\r | |
135 | @retval EFI_UNSUPPORTED No interrupt endpoint can be found.\r | |
136 | @retval Other This controller cannot be started.\r | |
137 | \r | |
138 | **/\r | |
139 | EFI_STATUS\r | |
140 | EFIAPI\r | |
141 | USBKeyboardDriverBindingStart (\r | |
142 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
143 | IN EFI_HANDLE Controller,\r | |
144 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
145 | )\r | |
146 | {\r | |
147 | EFI_STATUS Status;\r | |
148 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
149 | USB_KB_DEV *UsbKeyboardDevice;\r | |
150 | UINT8 EndpointNumber;\r | |
151 | EFI_USB_ENDPOINT_DESCRIPTOR EndpointDescriptor;\r | |
152 | UINT8 Index;\r | |
153 | UINT8 EndpointAddr;\r | |
154 | UINT8 PollingInterval;\r | |
155 | UINT8 PacketSize;\r | |
156 | BOOLEAN Found;\r | |
157 | \r | |
158 | //\r | |
159 | // Open USB I/O Protocol\r | |
160 | //\r | |
161 | Status = gBS->OpenProtocol (\r | |
162 | Controller,\r | |
163 | &gEfiUsbIoProtocolGuid,\r | |
164 | (VOID **) &UsbIo,\r | |
165 | This->DriverBindingHandle,\r | |
166 | Controller,\r | |
167 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
168 | );\r | |
169 | if (EFI_ERROR (Status)) {\r | |
170 | return Status;\r | |
171 | }\r | |
172 | \r | |
173 | UsbKeyboardDevice = AllocateZeroPool (sizeof (USB_KB_DEV));\r | |
174 | ASSERT (UsbKeyboardDevice != NULL);\r | |
175 | \r | |
176 | //\r | |
177 | // Get the Device Path Protocol on Controller's handle\r | |
178 | //\r | |
179 | Status = gBS->OpenProtocol (\r | |
180 | Controller,\r | |
181 | &gEfiDevicePathProtocolGuid,\r | |
182 | (VOID **) &UsbKeyboardDevice->DevicePath,\r | |
183 | This->DriverBindingHandle,\r | |
184 | Controller,\r | |
185 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
186 | );\r | |
187 | \r | |
188 | if (EFI_ERROR (Status)) {\r | |
189 | goto ErrorExit;\r | |
190 | }\r | |
191 | //\r | |
192 | // Report that the USB keyboard is being enabled\r | |
193 | //\r | |
194 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
195 | EFI_PROGRESS_CODE,\r | |
196 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_ENABLE),\r | |
197 | UsbKeyboardDevice->DevicePath\r | |
198 | );\r | |
199 | \r | |
200 | //\r | |
201 | // This is pretty close to keyboard detection, so log progress\r | |
202 | //\r | |
203 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
204 | EFI_PROGRESS_CODE,\r | |
205 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_PRESENCE_DETECT),\r | |
206 | UsbKeyboardDevice->DevicePath\r | |
207 | );\r | |
208 | \r | |
209 | UsbKeyboardDevice->UsbIo = UsbIo;\r | |
210 | \r | |
211 | //\r | |
212 | // Get interface & endpoint descriptor\r | |
213 | //\r | |
214 | UsbIo->UsbGetInterfaceDescriptor (\r | |
215 | UsbIo,\r | |
216 | &UsbKeyboardDevice->InterfaceDescriptor\r | |
217 | );\r | |
218 | \r | |
219 | EndpointNumber = UsbKeyboardDevice->InterfaceDescriptor.NumEndpoints;\r | |
220 | \r | |
221 | //\r | |
222 | // Traverse endpoints to find interrupt endpoint\r | |
223 | //\r | |
224 | Found = FALSE;\r | |
225 | for (Index = 0; Index < EndpointNumber; Index++) {\r | |
226 | \r | |
227 | UsbIo->UsbGetEndpointDescriptor (\r | |
228 | UsbIo,\r | |
229 | Index,\r | |
230 | &EndpointDescriptor\r | |
231 | );\r | |
232 | \r | |
233 | if ((EndpointDescriptor.Attributes & (BIT0 | BIT1)) == USB_ENDPOINT_INTERRUPT) {\r | |
234 | //\r | |
235 | // We only care interrupt endpoint here\r | |
236 | //\r | |
237 | CopyMem(&UsbKeyboardDevice->IntEndpointDescriptor, &EndpointDescriptor, sizeof(EndpointDescriptor));\r | |
238 | Found = TRUE;\r | |
239 | break;\r | |
240 | }\r | |
241 | }\r | |
242 | \r | |
243 | if (!Found) {\r | |
244 | //\r | |
245 | // No interrupt endpoint found, then return unsupported.\r | |
246 | //\r | |
247 | Status = EFI_UNSUPPORTED;\r | |
248 | goto ErrorExit;\r | |
249 | }\r | |
250 | \r | |
251 | UsbKeyboardDevice->Signature = USB_KB_DEV_SIGNATURE;\r | |
252 | UsbKeyboardDevice->SimpleInput.Reset = USBKeyboardReset;\r | |
253 | UsbKeyboardDevice->SimpleInput.ReadKeyStroke = USBKeyboardReadKeyStroke;\r | |
254 | \r | |
255 | UsbKeyboardDevice->SimpleInputEx.Reset = USBKeyboardResetEx;\r | |
256 | UsbKeyboardDevice->SimpleInputEx.ReadKeyStrokeEx = USBKeyboardReadKeyStrokeEx;\r | |
257 | UsbKeyboardDevice->SimpleInputEx.SetState = USBKeyboardSetState;\r | |
258 | UsbKeyboardDevice->SimpleInputEx.RegisterKeyNotify = USBKeyboardRegisterKeyNotify;\r | |
259 | UsbKeyboardDevice->SimpleInputEx.UnregisterKeyNotify = USBKeyboardUnregisterKeyNotify;\r | |
260 | \r | |
261 | InitializeListHead (&UsbKeyboardDevice->NotifyList);\r | |
262 | \r | |
263 | Status = gBS->CreateEvent (\r | |
264 | EVT_NOTIFY_WAIT,\r | |
265 | TPL_NOTIFY,\r | |
266 | USBKeyboardWaitForKey,\r | |
267 | UsbKeyboardDevice,\r | |
268 | &(UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx)\r | |
269 | );\r | |
270 | \r | |
271 | if (EFI_ERROR (Status)) {\r | |
272 | goto ErrorExit;\r | |
273 | }\r | |
274 | \r | |
275 | Status = gBS->CreateEvent (\r | |
276 | EVT_NOTIFY_WAIT,\r | |
277 | TPL_NOTIFY,\r | |
278 | USBKeyboardWaitForKey,\r | |
279 | UsbKeyboardDevice,\r | |
280 | &(UsbKeyboardDevice->SimpleInput.WaitForKey)\r | |
281 | );\r | |
282 | if (EFI_ERROR (Status)) {\r | |
283 | goto ErrorExit;\r | |
284 | }\r | |
285 | \r | |
286 | //\r | |
287 | // Install Simple Text Input Protocol and Simple Text Input Ex Protocol\r | |
288 | // for the USB keyboard device.\r | |
289 | // USB keyboard is a hot plug device, and expected to work immediately\r | |
290 | // when plugging into system, other conventional console devices could\r | |
291 | // distinguish it by its device path.\r | |
292 | //\r | |
293 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
294 | &Controller,\r | |
295 | &gEfiSimpleTextInProtocolGuid,\r | |
296 | &UsbKeyboardDevice->SimpleInput,\r | |
297 | &gEfiSimpleTextInputExProtocolGuid,\r | |
298 | &UsbKeyboardDevice->SimpleInputEx,\r | |
299 | NULL\r | |
300 | );\r | |
301 | if (EFI_ERROR (Status)) {\r | |
302 | goto ErrorExit;\r | |
303 | }\r | |
304 | \r | |
305 | UsbKeyboardDevice->ControllerHandle = Controller;\r | |
306 | Status = InitKeyboardLayout (UsbKeyboardDevice);\r | |
307 | if (EFI_ERROR (Status)) {\r | |
308 | gBS->UninstallMultipleProtocolInterfaces (\r | |
309 | Controller,\r | |
310 | &gEfiSimpleTextInProtocolGuid,\r | |
311 | &UsbKeyboardDevice->SimpleInput,\r | |
312 | &gEfiSimpleTextInputExProtocolGuid,\r | |
313 | &UsbKeyboardDevice->SimpleInputEx,\r | |
314 | NULL\r | |
315 | );\r | |
316 | goto ErrorExit;\r | |
317 | }\r | |
318 | \r | |
319 | \r | |
320 | //\r | |
321 | // Reset USB Keyboard Device exhaustively.\r | |
322 | //\r | |
323 | Status = UsbKeyboardDevice->SimpleInputEx.Reset (\r | |
324 | &UsbKeyboardDevice->SimpleInputEx,\r | |
325 | TRUE\r | |
326 | );\r | |
327 | if (EFI_ERROR (Status)) {\r | |
328 | gBS->UninstallMultipleProtocolInterfaces (\r | |
329 | Controller,\r | |
330 | &gEfiSimpleTextInProtocolGuid,\r | |
331 | &UsbKeyboardDevice->SimpleInput,\r | |
332 | &gEfiSimpleTextInputExProtocolGuid,\r | |
333 | &UsbKeyboardDevice->SimpleInputEx,\r | |
334 | NULL\r | |
335 | );\r | |
336 | goto ErrorExit;\r | |
337 | }\r | |
338 | \r | |
339 | //\r | |
340 | // Submit Asynchronous Interrupt Transfer to manage this device.\r | |
341 | //\r | |
342 | EndpointAddr = UsbKeyboardDevice->IntEndpointDescriptor.EndpointAddress;\r | |
343 | PollingInterval = UsbKeyboardDevice->IntEndpointDescriptor.Interval;\r | |
344 | PacketSize = (UINT8) (UsbKeyboardDevice->IntEndpointDescriptor.MaxPacketSize);\r | |
345 | \r | |
346 | Status = UsbIo->UsbAsyncInterruptTransfer (\r | |
347 | UsbIo,\r | |
348 | EndpointAddr,\r | |
349 | TRUE,\r | |
350 | PollingInterval,\r | |
351 | PacketSize,\r | |
352 | KeyboardHandler,\r | |
353 | UsbKeyboardDevice\r | |
354 | );\r | |
355 | \r | |
356 | if (EFI_ERROR (Status)) {\r | |
357 | gBS->UninstallMultipleProtocolInterfaces (\r | |
358 | Controller,\r | |
359 | &gEfiSimpleTextInProtocolGuid,\r | |
360 | &UsbKeyboardDevice->SimpleInput,\r | |
361 | &gEfiSimpleTextInputExProtocolGuid,\r | |
362 | &UsbKeyboardDevice->SimpleInputEx,\r | |
363 | NULL\r | |
364 | );\r | |
365 | goto ErrorExit;\r | |
366 | }\r | |
367 | \r | |
368 | UsbKeyboardDevice->ControllerNameTable = NULL;\r | |
369 | AddUnicodeString2 (\r | |
370 | "eng",\r | |
371 | gUsbKeyboardComponentName.SupportedLanguages,\r | |
372 | &UsbKeyboardDevice->ControllerNameTable,\r | |
373 | L"Generic Usb Keyboard",\r | |
374 | TRUE\r | |
375 | );\r | |
376 | AddUnicodeString2 (\r | |
377 | "en",\r | |
378 | gUsbKeyboardComponentName2.SupportedLanguages,\r | |
379 | &UsbKeyboardDevice->ControllerNameTable,\r | |
380 | L"Generic Usb Keyboard",\r | |
381 | FALSE\r | |
382 | );\r | |
383 | \r | |
384 | return EFI_SUCCESS;\r | |
385 | \r | |
386 | //\r | |
387 | // Error handler\r | |
388 | //\r | |
389 | ErrorExit:\r | |
390 | if (UsbKeyboardDevice != NULL) {\r | |
391 | if (UsbKeyboardDevice->SimpleInput.WaitForKey != NULL) {\r | |
392 | gBS->CloseEvent (UsbKeyboardDevice->SimpleInput.WaitForKey);\r | |
393 | }\r | |
394 | if (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx != NULL) {\r | |
395 | gBS->CloseEvent (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx);\r | |
396 | }\r | |
397 | if (UsbKeyboardDevice->KeyboardLayoutEvent != NULL) {\r | |
398 | ReleaseKeyboardLayoutResources (UsbKeyboardDevice);\r | |
399 | gBS->CloseEvent (UsbKeyboardDevice->KeyboardLayoutEvent);\r | |
400 | }\r | |
401 | FreePool (UsbKeyboardDevice);\r | |
402 | UsbKeyboardDevice = NULL;\r | |
403 | }\r | |
404 | gBS->CloseProtocol (\r | |
405 | Controller,\r | |
406 | &gEfiUsbIoProtocolGuid,\r | |
407 | This->DriverBindingHandle,\r | |
408 | Controller\r | |
409 | );\r | |
410 | return Status;\r | |
411 | \r | |
412 | }\r | |
413 | \r | |
414 | \r | |
415 | /**\r | |
416 | Stop the USB keyboard device handled by this driver.\r | |
417 | \r | |
418 | @param This The USB keyboard driver binding protocol.\r | |
419 | @param Controller The controller to release.\r | |
420 | @param NumberOfChildren The number of handles in ChildHandleBuffer.\r | |
421 | @param ChildHandleBuffer The array of child handle.\r | |
422 | \r | |
423 | @retval EFI_SUCCESS The device was stopped.\r | |
424 | @retval EFI_UNSUPPORTED Simple Text In Protocol or Simple Text In Ex Protocol\r | |
425 | is not installed on Controller.\r | |
426 | @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r | |
427 | @retval Others Fail to uninstall protocols attached on the device.\r | |
428 | \r | |
429 | **/\r | |
430 | EFI_STATUS\r | |
431 | EFIAPI\r | |
432 | USBKeyboardDriverBindingStop (\r | |
433 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
434 | IN EFI_HANDLE Controller,\r | |
435 | IN UINTN NumberOfChildren,\r | |
436 | IN EFI_HANDLE *ChildHandleBuffer\r | |
437 | )\r | |
438 | {\r | |
439 | EFI_STATUS Status;\r | |
440 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL *SimpleInput;\r | |
441 | USB_KB_DEV *UsbKeyboardDevice;\r | |
442 | \r | |
443 | Status = gBS->OpenProtocol (\r | |
444 | Controller,\r | |
445 | &gEfiSimpleTextInProtocolGuid,\r | |
446 | (VOID **) &SimpleInput,\r | |
447 | This->DriverBindingHandle,\r | |
448 | Controller,\r | |
449 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
450 | );\r | |
451 | if (EFI_ERROR (Status)) {\r | |
452 | return EFI_UNSUPPORTED;\r | |
453 | }\r | |
454 | \r | |
455 | Status = gBS->OpenProtocol (\r | |
456 | Controller,\r | |
457 | &gEfiSimpleTextInputExProtocolGuid,\r | |
458 | NULL,\r | |
459 | This->DriverBindingHandle,\r | |
460 | Controller,\r | |
461 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
462 | );\r | |
463 | if (EFI_ERROR (Status)) {\r | |
464 | return EFI_UNSUPPORTED;\r | |
465 | }\r | |
466 | \r | |
467 | UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (SimpleInput);\r | |
468 | \r | |
469 | //\r | |
470 | // The key data input from this device will be disabled.\r | |
471 | //\r | |
472 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
473 | EFI_PROGRESS_CODE,\r | |
474 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_DISABLE),\r | |
475 | UsbKeyboardDevice->DevicePath\r | |
476 | );\r | |
477 | \r | |
478 | //\r | |
479 | // Delete the Asynchronous Interrupt Transfer from this device\r | |
480 | //\r | |
481 | UsbKeyboardDevice->UsbIo->UsbAsyncInterruptTransfer (\r | |
482 | UsbKeyboardDevice->UsbIo,\r | |
483 | UsbKeyboardDevice->IntEndpointDescriptor.EndpointAddress,\r | |
484 | FALSE,\r | |
485 | UsbKeyboardDevice->IntEndpointDescriptor.Interval,\r | |
486 | 0,\r | |
487 | NULL,\r | |
488 | NULL\r | |
489 | );\r | |
490 | \r | |
491 | gBS->CloseProtocol (\r | |
492 | Controller,\r | |
493 | &gEfiUsbIoProtocolGuid,\r | |
494 | This->DriverBindingHandle,\r | |
495 | Controller\r | |
496 | );\r | |
497 | \r | |
498 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
499 | Controller,\r | |
500 | &gEfiSimpleTextInProtocolGuid,\r | |
501 | &UsbKeyboardDevice->SimpleInput,\r | |
502 | &gEfiSimpleTextInputExProtocolGuid,\r | |
503 | &UsbKeyboardDevice->SimpleInputEx,\r | |
504 | NULL\r | |
505 | );\r | |
506 | //\r | |
507 | // Free all resources.\r | |
508 | //\r | |
509 | gBS->CloseEvent (UsbKeyboardDevice->RepeatTimer);\r | |
510 | gBS->CloseEvent (UsbKeyboardDevice->DelayedRecoveryEvent);\r | |
511 | gBS->CloseEvent ((UsbKeyboardDevice->SimpleInput).WaitForKey);\r | |
512 | gBS->CloseEvent (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx); \r | |
513 | KbdFreeNotifyList (&UsbKeyboardDevice->NotifyList); \r | |
514 | \r | |
515 | ReleaseKeyboardLayoutResources (UsbKeyboardDevice);\r | |
516 | gBS->CloseEvent (UsbKeyboardDevice->KeyboardLayoutEvent);\r | |
517 | \r | |
518 | if (UsbKeyboardDevice->ControllerNameTable != NULL) {\r | |
519 | FreeUnicodeStringTable (UsbKeyboardDevice->ControllerNameTable);\r | |
520 | }\r | |
521 | \r | |
522 | FreePool (UsbKeyboardDevice);\r | |
523 | \r | |
524 | return Status;\r | |
525 | }\r | |
526 | \r | |
527 | /**\r | |
528 | Internal function to read the next keystroke from the keyboard buffer.\r | |
529 | \r | |
530 | @param UsbKeyboardDevice USB keyboard's private structure.\r | |
531 | @param KeyData A pointer to buffer to hold the keystroke\r | |
532 | data for the key that was pressed.\r | |
533 | \r | |
534 | @retval EFI_SUCCESS The keystroke information was returned.\r | |
535 | @retval EFI_NOT_READY There was no keystroke data availiable.\r | |
536 | @retval EFI_DEVICE_ERROR The keystroke information was not returned due to\r | |
537 | hardware errors.\r | |
538 | @retval EFI_INVALID_PARAMETER KeyData is NULL.\r | |
539 | @retval Others Fail to translate keycode into EFI_INPUT_KEY\r | |
540 | \r | |
541 | **/\r | |
542 | EFI_STATUS\r | |
543 | EFIAPI\r | |
544 | USBKeyboardReadKeyStrokeWorker (\r | |
545 | IN OUT USB_KB_DEV *UsbKeyboardDevice,\r | |
546 | OUT EFI_KEY_DATA *KeyData\r | |
547 | )\r | |
548 | {\r | |
549 | EFI_STATUS Status;\r | |
550 | UINT8 KeyCode; \r | |
551 | LIST_ENTRY *Link;\r | |
552 | LIST_ENTRY *NotifyList;\r | |
553 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify; \r | |
554 | EFI_KEY_DATA OriginalKeyData;\r | |
555 | \r | |
556 | if (KeyData == NULL) {\r | |
557 | return EFI_INVALID_PARAMETER;\r | |
558 | }\r | |
559 | \r | |
560 | //\r | |
561 | // If there is no saved USB keycode, fetch it\r | |
562 | // by calling USBKeyboardCheckForKey().\r | |
563 | //\r | |
564 | if (UsbKeyboardDevice->CurKeyCode == 0) {\r | |
565 | Status = USBKeyboardCheckForKey (UsbKeyboardDevice);\r | |
566 | if (EFI_ERROR (Status)) {\r | |
567 | return EFI_NOT_READY;\r | |
568 | }\r | |
569 | }\r | |
570 | \r | |
571 | KeyData->Key.UnicodeChar = 0;\r | |
572 | KeyData->Key.ScanCode = SCAN_NULL;\r | |
573 | \r | |
574 | //\r | |
575 | // Store the current keycode and clear it.\r | |
576 | //\r | |
577 | KeyCode = UsbKeyboardDevice->CurKeyCode;\r | |
578 | UsbKeyboardDevice->CurKeyCode = 0;\r | |
579 | \r | |
580 | //\r | |
581 | // Translate saved USB keycode into EFI_INPUT_KEY\r | |
582 | //\r | |
583 | Status = UsbKeyCodeToEfiInputKey (UsbKeyboardDevice, KeyCode, &KeyData->Key);\r | |
584 | if (EFI_ERROR (Status)) {\r | |
585 | return Status;\r | |
586 | }\r | |
587 | \r | |
588 | //\r | |
589 | // Get current state of various toggled attributes as well as input modifier values,\r | |
590 | // and set them as valid.\r | |
591 | //\r | |
592 | CopyMem (&KeyData->KeyState, &UsbKeyboardDevice->KeyState, sizeof (KeyData->KeyState));\r | |
593 | \r | |
594 | UsbKeyboardDevice->KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID;\r | |
595 | UsbKeyboardDevice->KeyState.KeyToggleState = EFI_TOGGLE_STATE_VALID;\r | |
596 | \r | |
597 | //\r | |
598 | // Switch the control value to their original characters.\r | |
599 | // In UsbKeyCodeToEfiInputKey() the CTRL-Alpha characters have been switched to \r | |
600 | // their corresponding control value (ctrl-a = 0x0001 through ctrl-Z = 0x001A),\r | |
601 | // here switch them back for notification function.\r | |
602 | //\r | |
603 | CopyMem (&OriginalKeyData, KeyData, sizeof (EFI_KEY_DATA));\r | |
604 | if (UsbKeyboardDevice->CtrlOn) {\r | |
605 | if (OriginalKeyData.Key.UnicodeChar >= 0x01 && OriginalKeyData.Key.UnicodeChar <= 0x1A) {\r | |
606 | if (UsbKeyboardDevice->CapsOn) {\r | |
607 | OriginalKeyData.Key.UnicodeChar = (CHAR16)(OriginalKeyData.Key.UnicodeChar + 'A' - 1);\r | |
608 | } else {\r | |
609 | OriginalKeyData.Key.UnicodeChar = (CHAR16)(OriginalKeyData.Key.UnicodeChar + 'a' - 1);\r | |
610 | } \r | |
611 | }\r | |
612 | }\r | |
613 | \r | |
614 | //\r | |
615 | // Invoke notification functions if the key is registered.\r | |
616 | //\r | |
617 | NotifyList = &UsbKeyboardDevice->NotifyList;\r | |
618 | for (Link = GetFirstNode (NotifyList);\r | |
619 | !IsNull (NotifyList, Link);\r | |
620 | Link = GetNextNode (NotifyList, Link)) {\r | |
621 | CurrentNotify = CR (Link, KEYBOARD_CONSOLE_IN_EX_NOTIFY, NotifyEntry, USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE);\r | |
622 | if (IsKeyRegistered (&CurrentNotify->KeyData, &OriginalKeyData)) { \r | |
623 | CurrentNotify->KeyNotificationFn (&OriginalKeyData);\r | |
624 | }\r | |
625 | }\r | |
626 | \r | |
627 | return EFI_SUCCESS;\r | |
628 | }\r | |
629 | \r | |
630 | /**\r | |
631 | Reset the input device and optionally run diagnostics\r | |
632 | \r | |
633 | There are 2 types of reset for USB keyboard.\r | |
634 | For non-exhaustive reset, only keyboard buffer is cleared.\r | |
635 | For exhaustive reset, in addition to clearance of keyboard buffer, the hardware status\r | |
636 | is also re-initialized.\r | |
637 | \r | |
638 | @param This Protocol instance pointer.\r | |
639 | @param ExtendedVerification Driver may perform diagnostics on reset.\r | |
640 | \r | |
641 | @retval EFI_SUCCESS The device was reset.\r | |
642 | @retval EFI_DEVICE_ERROR The device is not functioning properly and could not be reset.\r | |
643 | \r | |
644 | **/\r | |
645 | EFI_STATUS\r | |
646 | EFIAPI\r | |
647 | USBKeyboardReset (\r | |
648 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
649 | IN BOOLEAN ExtendedVerification\r | |
650 | )\r | |
651 | {\r | |
652 | EFI_STATUS Status;\r | |
653 | USB_KB_DEV *UsbKeyboardDevice;\r | |
654 | \r | |
655 | UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (This);\r | |
656 | \r | |
657 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
658 | EFI_PROGRESS_CODE,\r | |
659 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_RESET),\r | |
660 | UsbKeyboardDevice->DevicePath\r | |
661 | );\r | |
662 | \r | |
663 | //\r | |
664 | // Non-exhaustive reset:\r | |
665 | // only reset private data structures.\r | |
666 | //\r | |
667 | if (!ExtendedVerification) {\r | |
668 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
669 | EFI_PROGRESS_CODE,\r | |
670 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_PC_CLEAR_BUFFER),\r | |
671 | UsbKeyboardDevice->DevicePath\r | |
672 | );\r | |
673 | //\r | |
674 | // Clear the key buffer of this USB keyboard\r | |
675 | //\r | |
676 | InitUSBKeyBuffer (&(UsbKeyboardDevice->KeyboardBuffer));\r | |
677 | UsbKeyboardDevice->CurKeyCode = 0;\r | |
678 | \r | |
679 | return EFI_SUCCESS;\r | |
680 | }\r | |
681 | \r | |
682 | //\r | |
683 | // Exhaustive reset\r | |
684 | //\r | |
685 | Status = InitUSBKeyboard (UsbKeyboardDevice);\r | |
686 | UsbKeyboardDevice->CurKeyCode = 0;\r | |
687 | if (EFI_ERROR (Status)) {\r | |
688 | return EFI_DEVICE_ERROR;\r | |
689 | }\r | |
690 | \r | |
691 | return EFI_SUCCESS;\r | |
692 | }\r | |
693 | \r | |
694 | \r | |
695 | /**\r | |
696 | Reads the next keystroke from the input device.\r | |
697 | \r | |
698 | @param This The EFI_SIMPLE_TEXT_INPUT_PROTOCOL instance.\r | |
699 | @param Key A pointer to a buffer that is filled in with the keystroke\r | |
700 | information for the key that was pressed.\r | |
701 | \r | |
702 | @retval EFI_SUCCESS The keystroke information was returned.\r | |
703 | @retval EFI_NOT_READY There was no keystroke data availiable.\r | |
704 | @retval EFI_DEVICE_ERROR The keystroke information was not returned due to\r | |
705 | hardware errors.\r | |
706 | \r | |
707 | **/\r | |
708 | EFI_STATUS\r | |
709 | EFIAPI\r | |
710 | USBKeyboardReadKeyStroke (\r | |
711 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
712 | OUT EFI_INPUT_KEY *Key\r | |
713 | )\r | |
714 | {\r | |
715 | USB_KB_DEV *UsbKeyboardDevice;\r | |
716 | EFI_STATUS Status;\r | |
717 | EFI_KEY_DATA KeyData;\r | |
718 | \r | |
719 | UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (This);\r | |
720 | \r | |
721 | Status = USBKeyboardReadKeyStrokeWorker (UsbKeyboardDevice, &KeyData);\r | |
722 | if (EFI_ERROR (Status)) {\r | |
723 | return Status;\r | |
724 | }\r | |
725 | \r | |
726 | CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));\r | |
727 | \r | |
728 | return EFI_SUCCESS;\r | |
729 | }\r | |
730 | \r | |
731 | \r | |
732 | /**\r | |
733 | Event notification function registered for EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx\r | |
734 | and EFI_SIMPLE_TEXT_INPUT_PROTOCOL.WaitForKey.\r | |
735 | \r | |
736 | @param Event Event to be signaled when a key is pressed.\r | |
737 | @param Context Points to USB_KB_DEV instance.\r | |
738 | \r | |
739 | **/\r | |
740 | VOID\r | |
741 | EFIAPI\r | |
742 | USBKeyboardWaitForKey (\r | |
743 | IN EFI_EVENT Event,\r | |
744 | IN VOID *Context\r | |
745 | )\r | |
746 | {\r | |
747 | USB_KB_DEV *UsbKeyboardDevice;\r | |
748 | \r | |
749 | UsbKeyboardDevice = (USB_KB_DEV *) Context;\r | |
750 | \r | |
751 | if (UsbKeyboardDevice->CurKeyCode == 0) {\r | |
752 | if (EFI_ERROR (USBKeyboardCheckForKey (UsbKeyboardDevice))) {\r | |
753 | //\r | |
754 | // If no pending key, simply return.\r | |
755 | //\r | |
756 | return ;\r | |
757 | }\r | |
758 | }\r | |
759 | //\r | |
760 | // If there is pending key, signal the event.\r | |
761 | //\r | |
762 | gBS->SignalEvent (Event);\r | |
763 | }\r | |
764 | \r | |
765 | \r | |
766 | /**\r | |
767 | Check whether there is key pending in the keyboard buffer.\r | |
768 | \r | |
769 | @param UsbKeyboardDevice The USB_KB_DEV instance.\r | |
770 | \r | |
771 | @retval EFI_SUCCESS There is pending key to read.\r | |
772 | @retval EFI_NOT_READY No pending key to read.\r | |
773 | \r | |
774 | **/\r | |
775 | EFI_STATUS\r | |
776 | EFIAPI\r | |
777 | USBKeyboardCheckForKey (\r | |
778 | IN OUT USB_KB_DEV *UsbKeyboardDevice\r | |
779 | )\r | |
780 | {\r | |
781 | EFI_STATUS Status;\r | |
782 | UINT8 KeyCode;\r | |
783 | \r | |
784 | //\r | |
785 | // Fetch raw data from the USB keyboard buffer,\r | |
786 | // and translate it into USB keycode.\r | |
787 | //\r | |
788 | Status = USBParseKey (UsbKeyboardDevice, &KeyCode);\r | |
789 | if (EFI_ERROR (Status)) {\r | |
790 | return EFI_NOT_READY;\r | |
791 | }\r | |
792 | \r | |
793 | UsbKeyboardDevice->CurKeyCode = KeyCode;\r | |
794 | return EFI_SUCCESS;\r | |
795 | }\r | |
796 | \r | |
797 | /**\r | |
798 | Free keyboard notify list.\r | |
799 | \r | |
800 | @param NotifyList The keyboard notify list to free.\r | |
801 | \r | |
802 | @retval EFI_SUCCESS Free the notify list successfully.\r | |
803 | @retval EFI_INVALID_PARAMETER NotifyList is NULL.\r | |
804 | \r | |
805 | **/\r | |
806 | EFI_STATUS\r | |
807 | EFIAPI\r | |
808 | KbdFreeNotifyList (\r | |
809 | IN OUT LIST_ENTRY *NotifyList\r | |
810 | )\r | |
811 | {\r | |
812 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *NotifyNode;\r | |
813 | LIST_ENTRY *Link;\r | |
814 | \r | |
815 | if (NotifyList == NULL) {\r | |
816 | return EFI_INVALID_PARAMETER;\r | |
817 | }\r | |
818 | while (!IsListEmpty (NotifyList)) {\r | |
819 | Link = GetFirstNode (NotifyList);\r | |
820 | NotifyNode = CR (Link, KEYBOARD_CONSOLE_IN_EX_NOTIFY, NotifyEntry, USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE);\r | |
821 | RemoveEntryList (Link);\r | |
822 | FreePool (NotifyNode);\r | |
823 | }\r | |
824 | \r | |
825 | return EFI_SUCCESS;\r | |
826 | }\r | |
827 | \r | |
828 | /**\r | |
829 | Check whether the pressed key matches a registered key or not.\r | |
830 | \r | |
831 | @param RegsiteredData A pointer to keystroke data for the key that was registered.\r | |
832 | @param InputData A pointer to keystroke data for the key that was pressed.\r | |
833 | \r | |
834 | @retval TRUE Key pressed matches a registered key.\r | |
835 | @retval FLASE Key pressed does not matches a registered key.\r | |
836 | \r | |
837 | **/\r | |
838 | BOOLEAN\r | |
839 | EFIAPI\r | |
840 | IsKeyRegistered (\r | |
841 | IN EFI_KEY_DATA *RegsiteredData,\r | |
842 | IN EFI_KEY_DATA *InputData\r | |
843 | )\r | |
844 | {\r | |
845 | ASSERT (RegsiteredData != NULL && InputData != NULL);\r | |
846 | \r | |
847 | if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||\r | |
848 | (RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {\r | |
849 | return FALSE; \r | |
850 | } \r | |
851 | \r | |
852 | //\r | |
853 | // Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.\r | |
854 | //\r | |
855 | if (RegsiteredData->KeyState.KeyShiftState != 0 &&\r | |
856 | RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState) {\r | |
857 | return FALSE; \r | |
858 | } \r | |
859 | if (RegsiteredData->KeyState.KeyToggleState != 0 &&\r | |
860 | RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState) {\r | |
861 | return FALSE; \r | |
862 | } \r | |
863 | \r | |
864 | return TRUE;\r | |
865 | }\r | |
866 | \r | |
867 | //\r | |
868 | // Simple Text Input Ex protocol functions \r | |
869 | //\r | |
870 | /**\r | |
871 | Resets the input device hardware.\r | |
872 | \r | |
873 | The Reset() function resets the input device hardware. As part\r | |
874 | of initialization process, the firmware/device will make a quick\r | |
875 | but reasonable attempt to verify that the device is functioning.\r | |
876 | If the ExtendedVerification flag is TRUE the firmware may take\r | |
877 | an extended amount of time to verify the device is operating on\r | |
878 | reset. Otherwise the reset operation is to occur as quickly as\r | |
879 | possible. The hardware verification process is not defined by\r | |
880 | this specification and is left up to the platform firmware or\r | |
881 | driver to implement.\r | |
882 | \r | |
883 | @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r | |
884 | \r | |
885 | @param ExtendedVerification Indicates that the driver may perform a more exhaustive\r | |
886 | verification operation of the device during reset.\r | |
887 | \r | |
888 | @retval EFI_SUCCESS The device was reset.\r | |
889 | @retval EFI_DEVICE_ERROR The device is not functioning correctly and could not be reset.\r | |
890 | \r | |
891 | **/\r | |
892 | EFI_STATUS\r | |
893 | EFIAPI\r | |
894 | USBKeyboardResetEx (\r | |
895 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
896 | IN BOOLEAN ExtendedVerification\r | |
897 | )\r | |
898 | {\r | |
899 | EFI_STATUS Status;\r | |
900 | USB_KB_DEV *UsbKeyboardDevice;\r | |
901 | EFI_TPL OldTpl;\r | |
902 | \r | |
903 | \r | |
904 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
905 | \r | |
906 | Status = UsbKeyboardDevice->SimpleInput.Reset (&UsbKeyboardDevice->SimpleInput, ExtendedVerification);\r | |
907 | if (EFI_ERROR (Status)) {\r | |
908 | return EFI_DEVICE_ERROR;\r | |
909 | }\r | |
910 | \r | |
911 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
912 | UsbKeyboardDevice->KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID;\r | |
913 | UsbKeyboardDevice->KeyState.KeyToggleState = EFI_TOGGLE_STATE_VALID;\r | |
914 | gBS->RestoreTPL (OldTpl);\r | |
915 | \r | |
916 | return EFI_SUCCESS;\r | |
917 | \r | |
918 | }\r | |
919 | \r | |
920 | /**\r | |
921 | Reads the next keystroke from the input device.\r | |
922 | \r | |
923 | @param This Protocol instance pointer.\r | |
924 | @param KeyData A pointer to a buffer that is filled in with the keystroke\r | |
925 | state data for the key that was pressed.\r | |
926 | \r | |
927 | @retval EFI_SUCCESS The keystroke information was returned.\r | |
928 | @retval EFI_NOT_READY There was no keystroke data available.\r | |
929 | @retval EFI_DEVICE_ERROR The keystroke information was not returned due to\r | |
930 | hardware errors.\r | |
931 | @retval EFI_INVALID_PARAMETER KeyData is NULL.\r | |
932 | \r | |
933 | **/\r | |
934 | EFI_STATUS\r | |
935 | EFIAPI\r | |
936 | USBKeyboardReadKeyStrokeEx (\r | |
937 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
938 | OUT EFI_KEY_DATA *KeyData\r | |
939 | )\r | |
940 | {\r | |
941 | USB_KB_DEV *UsbKeyboardDevice;\r | |
942 | \r | |
943 | if (KeyData == NULL) {\r | |
944 | return EFI_INVALID_PARAMETER;\r | |
945 | }\r | |
946 | \r | |
947 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
948 | \r | |
949 | return USBKeyboardReadKeyStrokeWorker (UsbKeyboardDevice, KeyData);\r | |
950 | \r | |
951 | }\r | |
952 | \r | |
953 | /**\r | |
954 | Set certain state for the input device.\r | |
955 | \r | |
956 | @param This Protocol instance pointer.\r | |
957 | @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the\r | |
958 | state for the input device.\r | |
959 | \r | |
960 | @retval EFI_SUCCESS The device state was set appropriately.\r | |
961 | @retval EFI_DEVICE_ERROR The device is not functioning correctly and could\r | |
962 | not have the setting adjusted.\r | |
963 | @retval EFI_UNSUPPORTED The device does not support the ability to have its state set.\r | |
964 | @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.\r | |
965 | \r | |
966 | **/\r | |
967 | EFI_STATUS\r | |
968 | EFIAPI\r | |
969 | USBKeyboardSetState (\r | |
970 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
971 | IN EFI_KEY_TOGGLE_STATE *KeyToggleState\r | |
972 | )\r | |
973 | {\r | |
974 | USB_KB_DEV *UsbKeyboardDevice;\r | |
975 | \r | |
976 | if (KeyToggleState == NULL) {\r | |
977 | return EFI_INVALID_PARAMETER;\r | |
978 | }\r | |
979 | \r | |
980 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
981 | \r | |
982 | if (((UsbKeyboardDevice->KeyState.KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) ||\r | |
983 | ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID)) {\r | |
984 | return EFI_UNSUPPORTED;\r | |
985 | }\r | |
986 | \r | |
987 | //\r | |
988 | // Update the status light\r | |
989 | //\r | |
990 | \r | |
991 | UsbKeyboardDevice->ScrollOn = FALSE;\r | |
992 | UsbKeyboardDevice->NumLockOn = FALSE;\r | |
993 | UsbKeyboardDevice->CapsOn = FALSE;\r | |
994 | \r | |
995 | if ((*KeyToggleState & EFI_SCROLL_LOCK_ACTIVE) == EFI_SCROLL_LOCK_ACTIVE) {\r | |
996 | UsbKeyboardDevice->ScrollOn = TRUE;\r | |
997 | }\r | |
998 | if ((*KeyToggleState & EFI_NUM_LOCK_ACTIVE) == EFI_NUM_LOCK_ACTIVE) {\r | |
999 | UsbKeyboardDevice->NumLockOn = TRUE;\r | |
1000 | }\r | |
1001 | if ((*KeyToggleState & EFI_CAPS_LOCK_ACTIVE) == EFI_CAPS_LOCK_ACTIVE) {\r | |
1002 | UsbKeyboardDevice->CapsOn = TRUE;\r | |
1003 | }\r | |
1004 | \r | |
1005 | SetKeyLED (UsbKeyboardDevice);\r | |
1006 | \r | |
1007 | UsbKeyboardDevice->KeyState.KeyToggleState = *KeyToggleState;\r | |
1008 | \r | |
1009 | return EFI_SUCCESS;\r | |
1010 | \r | |
1011 | }\r | |
1012 | \r | |
1013 | /**\r | |
1014 | Register a notification function for a particular keystroke for the input device.\r | |
1015 | \r | |
1016 | @param This Protocol instance pointer.\r | |
1017 | @param KeyData A pointer to a buffer that is filled in with the keystroke\r | |
1018 | information data for the key that was pressed.\r | |
1019 | @param KeyNotificationFunction Points to the function to be called when the key\r | |
1020 | sequence is typed specified by KeyData.\r | |
1021 | @param NotifyHandle Points to the unique handle assigned to the registered notification.\r | |
1022 | \r | |
1023 | @retval EFI_SUCCESS The notification function was registered successfully.\r | |
1024 | @retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necessary data structures.\r | |
1025 | @retval EFI_INVALID_PARAMETER KeyData or NotifyHandle or KeyNotificationFunction is NULL.\r | |
1026 | \r | |
1027 | **/\r | |
1028 | EFI_STATUS\r | |
1029 | EFIAPI\r | |
1030 | USBKeyboardRegisterKeyNotify (\r | |
1031 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
1032 | IN EFI_KEY_DATA *KeyData,\r | |
1033 | IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,\r | |
1034 | OUT EFI_HANDLE *NotifyHandle\r | |
1035 | )\r | |
1036 | {\r | |
1037 | USB_KB_DEV *UsbKeyboardDevice;\r | |
1038 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *NewNotify;\r | |
1039 | LIST_ENTRY *Link;\r | |
1040 | LIST_ENTRY *NotifyList;\r | |
1041 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify; \r | |
1042 | \r | |
1043 | if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {\r | |
1044 | return EFI_INVALID_PARAMETER;\r | |
1045 | }\r | |
1046 | \r | |
1047 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
1048 | \r | |
1049 | //\r | |
1050 | // Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.\r | |
1051 | //\r | |
1052 | NotifyList = &UsbKeyboardDevice->NotifyList;\r | |
1053 | \r | |
1054 | for (Link = GetFirstNode (NotifyList);\r | |
1055 | !IsNull (NotifyList, Link);\r | |
1056 | Link = GetNextNode (NotifyList, Link)) {\r | |
1057 | CurrentNotify = CR (\r | |
1058 | Link, \r | |
1059 | KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r | |
1060 | NotifyEntry, \r | |
1061 | USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r | |
1062 | );\r | |
1063 | if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) { \r | |
1064 | if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {\r | |
1065 | *NotifyHandle = CurrentNotify->NotifyHandle; \r | |
1066 | return EFI_SUCCESS;\r | |
1067 | }\r | |
1068 | }\r | |
1069 | }\r | |
1070 | \r | |
1071 | //\r | |
1072 | // Allocate resource to save the notification function\r | |
1073 | // \r | |
1074 | NewNotify = (KEYBOARD_CONSOLE_IN_EX_NOTIFY *) AllocateZeroPool (sizeof (KEYBOARD_CONSOLE_IN_EX_NOTIFY));\r | |
1075 | if (NewNotify == NULL) {\r | |
1076 | return EFI_OUT_OF_RESOURCES;\r | |
1077 | }\r | |
1078 | \r | |
1079 | NewNotify->Signature = USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE; \r | |
1080 | NewNotify->KeyNotificationFn = KeyNotificationFunction;\r | |
1081 | NewNotify->NotifyHandle = (EFI_HANDLE) NewNotify;\r | |
1082 | CopyMem (&NewNotify->KeyData, KeyData, sizeof (EFI_KEY_DATA));\r | |
1083 | InsertTailList (&UsbKeyboardDevice->NotifyList, &NewNotify->NotifyEntry);\r | |
1084 | \r | |
1085 | \r | |
1086 | *NotifyHandle = NewNotify->NotifyHandle; \r | |
1087 | \r | |
1088 | return EFI_SUCCESS;\r | |
1089 | \r | |
1090 | }\r | |
1091 | \r | |
1092 | /**\r | |
1093 | Remove a registered notification function from a particular keystroke.\r | |
1094 | \r | |
1095 | @param This Protocol instance pointer.\r | |
1096 | @param NotificationHandle The handle of the notification function being unregistered.\r | |
1097 | \r | |
1098 | @retval EFI_SUCCESS The notification function was unregistered successfully.\r | |
1099 | @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid\r | |
1100 | \r | |
1101 | **/\r | |
1102 | EFI_STATUS\r | |
1103 | EFIAPI\r | |
1104 | USBKeyboardUnregisterKeyNotify (\r | |
1105 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
1106 | IN EFI_HANDLE NotificationHandle\r | |
1107 | )\r | |
1108 | {\r | |
1109 | USB_KB_DEV *UsbKeyboardDevice;\r | |
1110 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;\r | |
1111 | LIST_ENTRY *Link;\r | |
1112 | LIST_ENTRY *NotifyList;\r | |
1113 | \r | |
1114 | if (NotificationHandle == NULL) {\r | |
1115 | return EFI_INVALID_PARAMETER;\r | |
1116 | } \r | |
1117 | \r | |
1118 | if (((KEYBOARD_CONSOLE_IN_EX_NOTIFY *) NotificationHandle)->Signature != USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE) {\r | |
1119 | return EFI_INVALID_PARAMETER;\r | |
1120 | } \r | |
1121 | \r | |
1122 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
1123 | \r | |
1124 | //\r | |
1125 | // Traverse notify list of USB keyboard and remove the entry of NotificationHandle.\r | |
1126 | //\r | |
1127 | NotifyList = &UsbKeyboardDevice->NotifyList;\r | |
1128 | for (Link = GetFirstNode (NotifyList);\r | |
1129 | !IsNull (NotifyList, Link);\r | |
1130 | Link = GetNextNode (NotifyList, Link)) {\r | |
1131 | CurrentNotify = CR (\r | |
1132 | Link, \r | |
1133 | KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r | |
1134 | NotifyEntry, \r | |
1135 | USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r | |
1136 | ); \r | |
1137 | if (CurrentNotify->NotifyHandle == NotificationHandle) {\r | |
1138 | //\r | |
1139 | // Remove the notification function from NotifyList and free resources\r | |
1140 | //\r | |
1141 | RemoveEntryList (&CurrentNotify->NotifyEntry); \r | |
1142 | \r | |
1143 | FreePool (CurrentNotify); \r | |
1144 | return EFI_SUCCESS;\r | |
1145 | }\r | |
1146 | }\r | |
1147 | \r | |
1148 | //\r | |
1149 | // Cannot find the matching entry in database.\r | |
1150 | //\r | |
1151 | return EFI_INVALID_PARAMETER; \r | |
1152 | }\r | |
1153 | \r |