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ed838d0c | 1 | /** @file\r |
b4e73a63 | 2 | USB Keyboard Driver that manages USB keyboard and produces Simple Text Input\r |
3 | Protocol and Simple Text Input Ex Protocol.\r | |
a7022cec | 4 | \r |
c1fd2767 | 5 | Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>\r |
d4a622c4 | 6 | This program and the accompanying materials\r |
ed838d0c | 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 | |
a7022cec | 14 | **/\r |
ed838d0c | 15 | \r |
a7022cec | 16 | #include "EfiKey.h"\r |
17 | #include "KeyBoard.h"\r | |
ed838d0c | 18 | \r |
ed838d0c | 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 | |
a7022cec | 31 | /**\r |
5899f27e | 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 | |
a7022cec | 36 | \r |
5899f27e | 37 | @param ImageHandle The firmware allocated handle for the EFI image.\r |
38 | @param SystemTable A pointer to the EFI System Table.\r | |
a7022cec | 39 | \r |
5899f27e | 40 | @retval EFI_SUCCESS The entry point is executed successfully.\r |
a7022cec | 41 | \r |
42 | **/\r | |
ed838d0c | 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 | |
ed838d0c | 49 | {\r |
5899f27e | 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 | |
ed838d0c | 63 | }\r |
64 | \r | |
ed838d0c | 65 | /**\r |
5899f27e | 66 | Check whether USB keyboard driver supports this device.\r |
ed838d0c | 67 | \r |
a7022cec | 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 | |
ed838d0c | 71 | \r |
a7022cec | 72 | @retval EFI_SUCCESS The driver supports this controller.\r |
5899f27e | 73 | @retval other This device isn't supported.\r |
74 | \r | |
ed838d0c | 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 | |
ed838d0c | 84 | EFI_STATUS Status;\r |
5899f27e | 85 | EFI_USB_IO_PROTOCOL *UsbIo;\r |
ed838d0c | 86 | \r |
87 | //\r | |
5899f27e | 88 | // Check if USB I/O Protocol is attached on the controller handle.\r |
ed838d0c | 89 | //\r |
5899f27e | 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 | |
ed838d0c | 100 | }\r |
101 | \r | |
102 | //\r | |
b4e73a63 | 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 | |
ed838d0c | 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 | |
5899f27e | 113 | Controller,\r |
114 | &gEfiUsbIoProtocolGuid,\r | |
115 | This->DriverBindingHandle,\r | |
116 | Controller\r | |
117 | );\r | |
ed838d0c | 118 | \r |
119 | return Status;\r | |
120 | }\r | |
121 | \r | |
ed838d0c | 122 | /**\r |
c92e277d | 123 | Starts the keyboard device with this driver.\r |
b4e73a63 | 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 | |
ed838d0c | 128 | \r |
a7022cec | 129 | @param This The USB keyboard driver binding instance.\r |
5899f27e | 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 | |
ed838d0c | 133 | \r |
a7022cec | 134 | @retval EFI_SUCCESS The controller is controlled by the usb keyboard driver.\r |
5899f27e | 135 | @retval EFI_UNSUPPORTED No interrupt endpoint can be found.\r |
b4e73a63 | 136 | @retval Other This controller cannot be started.\r |
ed838d0c | 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 | |
15cc67e6 | 157 | EFI_TPL OldTpl;\r |
ed838d0c | 158 | \r |
15cc67e6 | 159 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
ed838d0c | 160 | //\r |
5899f27e | 161 | // Open USB I/O Protocol\r |
ed838d0c | 162 | //\r |
163 | Status = gBS->OpenProtocol (\r | |
164 | Controller,\r | |
165 | &gEfiUsbIoProtocolGuid,\r | |
c52fa98c | 166 | (VOID **) &UsbIo,\r |
ed838d0c | 167 | This->DriverBindingHandle,\r |
168 | Controller,\r | |
169 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
170 | );\r | |
171 | if (EFI_ERROR (Status)) {\r | |
15cc67e6 | 172 | goto ErrorExit1;\r |
ed838d0c | 173 | }\r |
174 | \r | |
175 | UsbKeyboardDevice = AllocateZeroPool (sizeof (USB_KB_DEV));\r | |
5899f27e | 176 | ASSERT (UsbKeyboardDevice != NULL);\r |
177 | \r | |
ed838d0c | 178 | //\r |
179 | // Get the Device Path Protocol on Controller's handle\r | |
180 | //\r | |
181 | Status = gBS->OpenProtocol (\r | |
182 | Controller,\r | |
183 | &gEfiDevicePathProtocolGuid,\r | |
184 | (VOID **) &UsbKeyboardDevice->DevicePath,\r | |
185 | This->DriverBindingHandle,\r | |
186 | Controller,\r | |
187 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
188 | );\r | |
189 | \r | |
190 | if (EFI_ERROR (Status)) {\r | |
5899f27e | 191 | goto ErrorExit;\r |
ed838d0c | 192 | }\r |
193 | //\r | |
5899f27e | 194 | // Report that the USB keyboard is being enabled\r |
ed838d0c | 195 | //\r |
5899f27e | 196 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
ed838d0c | 197 | EFI_PROGRESS_CODE,\r |
f9876ecf | 198 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_ENABLE),\r |
5899f27e | 199 | UsbKeyboardDevice->DevicePath\r |
ed838d0c | 200 | );\r |
201 | \r | |
202 | //\r | |
203 | // This is pretty close to keyboard detection, so log progress\r | |
204 | //\r | |
5899f27e | 205 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
ed838d0c | 206 | EFI_PROGRESS_CODE,\r |
f9876ecf | 207 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_PRESENCE_DETECT),\r |
5899f27e | 208 | UsbKeyboardDevice->DevicePath\r |
ed838d0c | 209 | );\r |
210 | \r | |
ed838d0c | 211 | UsbKeyboardDevice->UsbIo = UsbIo;\r |
212 | \r | |
213 | //\r | |
214 | // Get interface & endpoint descriptor\r | |
215 | //\r | |
216 | UsbIo->UsbGetInterfaceDescriptor (\r | |
5899f27e | 217 | UsbIo,\r |
218 | &UsbKeyboardDevice->InterfaceDescriptor\r | |
219 | );\r | |
ed838d0c | 220 | \r |
221 | EndpointNumber = UsbKeyboardDevice->InterfaceDescriptor.NumEndpoints;\r | |
222 | \r | |
5899f27e | 223 | //\r |
c92e277d | 224 | // Traverse endpoints to find interrupt endpoint\r |
5899f27e | 225 | //\r |
226 | Found = FALSE;\r | |
ed838d0c | 227 | for (Index = 0; Index < EndpointNumber; Index++) {\r |
228 | \r | |
229 | UsbIo->UsbGetEndpointDescriptor (\r | |
5899f27e | 230 | UsbIo,\r |
231 | Index,\r | |
232 | &EndpointDescriptor\r | |
233 | );\r | |
ed838d0c | 234 | \r |
c92e277d | 235 | if ((EndpointDescriptor.Attributes & (BIT0 | BIT1)) == USB_ENDPOINT_INTERRUPT) {\r |
ed838d0c | 236 | //\r |
237 | // We only care interrupt endpoint here\r | |
238 | //\r | |
84b5c78e | 239 | CopyMem(&UsbKeyboardDevice->IntEndpointDescriptor, &EndpointDescriptor, sizeof(EndpointDescriptor));\r |
ed838d0c | 240 | Found = TRUE;\r |
5899f27e | 241 | break;\r |
ed838d0c | 242 | }\r |
243 | }\r | |
244 | \r | |
245 | if (!Found) {\r | |
246 | //\r | |
247 | // No interrupt endpoint found, then return unsupported.\r | |
248 | //\r | |
5899f27e | 249 | Status = EFI_UNSUPPORTED;\r |
250 | goto ErrorExit;\r | |
ed838d0c | 251 | }\r |
252 | \r | |
253 | UsbKeyboardDevice->Signature = USB_KB_DEV_SIGNATURE;\r | |
254 | UsbKeyboardDevice->SimpleInput.Reset = USBKeyboardReset;\r | |
255 | UsbKeyboardDevice->SimpleInput.ReadKeyStroke = USBKeyboardReadKeyStroke;\r | |
66aa04e4 | 256 | \r |
257 | UsbKeyboardDevice->SimpleInputEx.Reset = USBKeyboardResetEx;\r | |
258 | UsbKeyboardDevice->SimpleInputEx.ReadKeyStrokeEx = USBKeyboardReadKeyStrokeEx;\r | |
259 | UsbKeyboardDevice->SimpleInputEx.SetState = USBKeyboardSetState;\r | |
260 | UsbKeyboardDevice->SimpleInputEx.RegisterKeyNotify = USBKeyboardRegisterKeyNotify;\r | |
c41c3e55 | 261 | UsbKeyboardDevice->SimpleInputEx.UnregisterKeyNotify = USBKeyboardUnregisterKeyNotify;\r |
66aa04e4 | 262 | \r |
263 | InitializeListHead (&UsbKeyboardDevice->NotifyList);\r | |
264 | \r | |
c1fd2767 RN |
265 | Status = gBS->CreateEvent (\r |
266 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
267 | TPL_NOTIFY,\r | |
268 | USBKeyboardTimerHandler,\r | |
269 | UsbKeyboardDevice,\r | |
270 | &UsbKeyboardDevice->TimerEvent\r | |
271 | );\r | |
272 | if (!EFI_ERROR (Status)) {\r | |
273 | Status = gBS->SetTimer (UsbKeyboardDevice->TimerEvent, TimerPeriodic, KEYBOARD_TIMER_INTERVAL);\r | |
274 | }\r | |
275 | if (EFI_ERROR (Status)) {\r | |
276 | goto ErrorExit;\r | |
277 | }\r | |
278 | \r | |
66aa04e4 | 279 | Status = gBS->CreateEvent (\r |
280 | EVT_NOTIFY_WAIT,\r | |
281 | TPL_NOTIFY,\r | |
282 | USBKeyboardWaitForKey,\r | |
283 | UsbKeyboardDevice,\r | |
284 | &(UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx)\r | |
285 | );\r | |
286 | \r | |
287 | if (EFI_ERROR (Status)) {\r | |
288 | goto ErrorExit;\r | |
289 | }\r | |
290 | \r | |
ed838d0c | 291 | Status = gBS->CreateEvent (\r |
292 | EVT_NOTIFY_WAIT,\r | |
293 | TPL_NOTIFY,\r | |
294 | USBKeyboardWaitForKey,\r | |
295 | UsbKeyboardDevice,\r | |
296 | &(UsbKeyboardDevice->SimpleInput.WaitForKey)\r | |
297 | );\r | |
5899f27e | 298 | if (EFI_ERROR (Status)) {\r |
299 | goto ErrorExit;\r | |
ed838d0c | 300 | }\r |
301 | \r | |
302 | //\r | |
5899f27e | 303 | // Install Simple Text Input Protocol and Simple Text Input Ex Protocol\r |
304 | // for the USB keyboard device.\r | |
305 | // USB keyboard is a hot plug device, and expected to work immediately\r | |
aa8f4f55 | 306 | // when plugging into system, other conventional console devices could\r |
307 | // distinguish it by its device path.\r | |
ed838d0c | 308 | //\r |
309 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
310 | &Controller,\r | |
311 | &gEfiSimpleTextInProtocolGuid,\r | |
312 | &UsbKeyboardDevice->SimpleInput,\r | |
66aa04e4 | 313 | &gEfiSimpleTextInputExProtocolGuid,\r |
314 | &UsbKeyboardDevice->SimpleInputEx,\r | |
ed838d0c | 315 | NULL\r |
316 | );\r | |
317 | if (EFI_ERROR (Status)) {\r | |
5899f27e | 318 | goto ErrorExit;\r |
ed838d0c | 319 | }\r |
320 | \r | |
c41c3e55 | 321 | UsbKeyboardDevice->ControllerHandle = Controller;\r |
322 | Status = InitKeyboardLayout (UsbKeyboardDevice);\r | |
323 | if (EFI_ERROR (Status)) {\r | |
324 | gBS->UninstallMultipleProtocolInterfaces (\r | |
325 | Controller,\r | |
326 | &gEfiSimpleTextInProtocolGuid,\r | |
327 | &UsbKeyboardDevice->SimpleInput,\r | |
328 | &gEfiSimpleTextInputExProtocolGuid,\r | |
329 | &UsbKeyboardDevice->SimpleInputEx,\r | |
330 | NULL\r | |
331 | );\r | |
332 | goto ErrorExit;\r | |
333 | }\r | |
334 | \r | |
335 | \r | |
ed838d0c | 336 | //\r |
5899f27e | 337 | // Reset USB Keyboard Device exhaustively.\r |
ed838d0c | 338 | //\r |
d4a622c4 | 339 | Status = UsbKeyboardDevice->SimpleInputEx.Reset (\r |
340 | &UsbKeyboardDevice->SimpleInputEx,\r | |
ed838d0c | 341 | TRUE\r |
342 | );\r | |
343 | if (EFI_ERROR (Status)) {\r | |
344 | gBS->UninstallMultipleProtocolInterfaces (\r | |
66aa04e4 | 345 | Controller,\r |
346 | &gEfiSimpleTextInProtocolGuid,\r | |
347 | &UsbKeyboardDevice->SimpleInput,\r | |
348 | &gEfiSimpleTextInputExProtocolGuid,\r | |
349 | &UsbKeyboardDevice->SimpleInputEx,\r | |
66aa04e4 | 350 | NULL\r |
351 | );\r | |
5899f27e | 352 | goto ErrorExit;\r |
ed838d0c | 353 | }\r |
5899f27e | 354 | \r |
ed838d0c | 355 | //\r |
5899f27e | 356 | // Submit Asynchronous Interrupt Transfer to manage this device.\r |
ed838d0c | 357 | //\r |
358 | EndpointAddr = UsbKeyboardDevice->IntEndpointDescriptor.EndpointAddress;\r | |
359 | PollingInterval = UsbKeyboardDevice->IntEndpointDescriptor.Interval;\r | |
360 | PacketSize = (UINT8) (UsbKeyboardDevice->IntEndpointDescriptor.MaxPacketSize);\r | |
361 | \r | |
362 | Status = UsbIo->UsbAsyncInterruptTransfer (\r | |
363 | UsbIo,\r | |
364 | EndpointAddr,\r | |
365 | TRUE,\r | |
366 | PollingInterval,\r | |
367 | PacketSize,\r | |
368 | KeyboardHandler,\r | |
369 | UsbKeyboardDevice\r | |
370 | );\r | |
371 | \r | |
372 | if (EFI_ERROR (Status)) {\r | |
ed838d0c | 373 | gBS->UninstallMultipleProtocolInterfaces (\r |
66aa04e4 | 374 | Controller,\r |
375 | &gEfiSimpleTextInProtocolGuid,\r | |
376 | &UsbKeyboardDevice->SimpleInput,\r | |
377 | &gEfiSimpleTextInputExProtocolGuid,\r | |
378 | &UsbKeyboardDevice->SimpleInputEx,\r | |
66aa04e4 | 379 | NULL\r |
380 | );\r | |
5899f27e | 381 | goto ErrorExit;\r |
ed838d0c | 382 | }\r |
383 | \r | |
384 | UsbKeyboardDevice->ControllerNameTable = NULL;\r | |
62b9bb55 | 385 | AddUnicodeString2 (\r |
ed838d0c | 386 | "eng",\r |
387 | gUsbKeyboardComponentName.SupportedLanguages,\r | |
388 | &UsbKeyboardDevice->ControllerNameTable,\r | |
62b9bb55 | 389 | L"Generic Usb Keyboard",\r |
390 | TRUE\r | |
ed838d0c | 391 | );\r |
62b9bb55 | 392 | AddUnicodeString2 (\r |
393 | "en",\r | |
394 | gUsbKeyboardComponentName2.SupportedLanguages,\r | |
395 | &UsbKeyboardDevice->ControllerNameTable,\r | |
396 | L"Generic Usb Keyboard",\r | |
397 | FALSE\r | |
398 | );\r | |
399 | \r | |
15cc67e6 | 400 | gBS->RestoreTPL (OldTpl);\r |
ed838d0c | 401 | return EFI_SUCCESS;\r |
66aa04e4 | 402 | \r |
5899f27e | 403 | //\r |
404 | // Error handler\r | |
405 | //\r | |
66aa04e4 | 406 | ErrorExit:\r |
407 | if (UsbKeyboardDevice != NULL) {\r | |
c1fd2767 RN |
408 | if (UsbKeyboardDevice->TimerEvent != NULL) {\r |
409 | gBS->CloseEvent (UsbKeyboardDevice->TimerEvent);\r | |
410 | }\r | |
66aa04e4 | 411 | if (UsbKeyboardDevice->SimpleInput.WaitForKey != NULL) {\r |
412 | gBS->CloseEvent (UsbKeyboardDevice->SimpleInput.WaitForKey);\r | |
413 | }\r | |
414 | if (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx != NULL) {\r | |
415 | gBS->CloseEvent (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx);\r | |
416 | }\r | |
16a97771 | 417 | if (UsbKeyboardDevice->KeyboardLayoutEvent != NULL) {\r |
ea021002 | 418 | ReleaseKeyboardLayoutResources (UsbKeyboardDevice);\r |
16a97771 | 419 | gBS->CloseEvent (UsbKeyboardDevice->KeyboardLayoutEvent);\r |
420 | }\r | |
c92e277d | 421 | FreePool (UsbKeyboardDevice);\r |
66aa04e4 | 422 | UsbKeyboardDevice = NULL;\r |
423 | }\r | |
424 | gBS->CloseProtocol (\r | |
425 | Controller,\r | |
426 | &gEfiUsbIoProtocolGuid,\r | |
427 | This->DriverBindingHandle,\r | |
428 | Controller\r | |
429 | );\r | |
15cc67e6 | 430 | \r |
431 | ErrorExit1:\r | |
432 | gBS->RestoreTPL (OldTpl);\r | |
433 | \r | |
66aa04e4 | 434 | return Status;\r |
435 | \r | |
ed838d0c | 436 | }\r |
437 | \r | |
438 | \r | |
ed838d0c | 439 | /**\r |
b4e73a63 | 440 | Stop the USB keyboard device handled by this driver.\r |
ed838d0c | 441 | \r |
a7022cec | 442 | @param This The USB keyboard driver binding protocol.\r |
443 | @param Controller The controller to release.\r | |
444 | @param NumberOfChildren The number of handles in ChildHandleBuffer.\r | |
445 | @param ChildHandleBuffer The array of child handle.\r | |
ed838d0c | 446 | \r |
b4e73a63 | 447 | @retval EFI_SUCCESS The device was stopped.\r |
5899f27e | 448 | @retval EFI_UNSUPPORTED Simple Text In Protocol or Simple Text In Ex Protocol\r |
449 | is not installed on Controller.\r | |
b4e73a63 | 450 | @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r |
451 | @retval Others Fail to uninstall protocols attached on the device.\r | |
ed838d0c | 452 | \r |
453 | **/\r | |
454 | EFI_STATUS\r | |
455 | EFIAPI\r | |
456 | USBKeyboardDriverBindingStop (\r | |
457 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
458 | IN EFI_HANDLE Controller,\r | |
459 | IN UINTN NumberOfChildren,\r | |
460 | IN EFI_HANDLE *ChildHandleBuffer\r | |
461 | )\r | |
462 | {\r | |
5899f27e | 463 | EFI_STATUS Status;\r |
ed838d0c | 464 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL *SimpleInput;\r |
5899f27e | 465 | USB_KB_DEV *UsbKeyboardDevice;\r |
ed838d0c | 466 | \r |
467 | Status = gBS->OpenProtocol (\r | |
468 | Controller,\r | |
469 | &gEfiSimpleTextInProtocolGuid,\r | |
c52fa98c | 470 | (VOID **) &SimpleInput,\r |
ed838d0c | 471 | This->DriverBindingHandle,\r |
472 | Controller,\r | |
bcb9d421 | 473 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
ed838d0c | 474 | );\r |
475 | if (EFI_ERROR (Status)) {\r | |
476 | return EFI_UNSUPPORTED;\r | |
477 | }\r | |
5899f27e | 478 | \r |
66aa04e4 | 479 | Status = gBS->OpenProtocol (\r |
480 | Controller,\r | |
481 | &gEfiSimpleTextInputExProtocolGuid,\r | |
482 | NULL,\r | |
483 | This->DriverBindingHandle,\r | |
484 | Controller,\r | |
485 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
486 | );\r | |
487 | if (EFI_ERROR (Status)) {\r | |
488 | return EFI_UNSUPPORTED;\r | |
489 | }\r | |
b4e73a63 | 490 | \r |
ed838d0c | 491 | UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (SimpleInput);\r |
492 | \r | |
ed838d0c | 493 | //\r |
5899f27e | 494 | // The key data input from this device will be disabled.\r |
ed838d0c | 495 | //\r |
5899f27e | 496 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
ed838d0c | 497 | EFI_PROGRESS_CODE,\r |
f9876ecf | 498 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_DISABLE),\r |
5899f27e | 499 | UsbKeyboardDevice->DevicePath\r |
ed838d0c | 500 | );\r |
501 | \r | |
502 | //\r | |
5899f27e | 503 | // Delete the Asynchronous Interrupt Transfer from this device\r |
ed838d0c | 504 | //\r |
505 | UsbKeyboardDevice->UsbIo->UsbAsyncInterruptTransfer (\r | |
506 | UsbKeyboardDevice->UsbIo,\r | |
507 | UsbKeyboardDevice->IntEndpointDescriptor.EndpointAddress,\r | |
508 | FALSE,\r | |
509 | UsbKeyboardDevice->IntEndpointDescriptor.Interval,\r | |
510 | 0,\r | |
511 | NULL,\r | |
512 | NULL\r | |
513 | );\r | |
514 | \r | |
515 | gBS->CloseProtocol (\r | |
5899f27e | 516 | Controller,\r |
517 | &gEfiUsbIoProtocolGuid,\r | |
518 | This->DriverBindingHandle,\r | |
519 | Controller\r | |
520 | );\r | |
ed838d0c | 521 | \r |
522 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
523 | Controller,\r | |
524 | &gEfiSimpleTextInProtocolGuid,\r | |
525 | &UsbKeyboardDevice->SimpleInput,\r | |
66aa04e4 | 526 | &gEfiSimpleTextInputExProtocolGuid,\r |
527 | &UsbKeyboardDevice->SimpleInputEx,\r | |
ed838d0c | 528 | NULL\r |
529 | );\r | |
530 | //\r | |
5899f27e | 531 | // Free all resources.\r |
ed838d0c | 532 | //\r |
c1fd2767 | 533 | gBS->CloseEvent (UsbKeyboardDevice->TimerEvent);\r |
ed838d0c | 534 | gBS->CloseEvent (UsbKeyboardDevice->RepeatTimer);\r |
535 | gBS->CloseEvent (UsbKeyboardDevice->DelayedRecoveryEvent);\r | |
c1fd2767 RN |
536 | gBS->CloseEvent (UsbKeyboardDevice->SimpleInput.WaitForKey);\r |
537 | gBS->CloseEvent (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx);\r | |
538 | KbdFreeNotifyList (&UsbKeyboardDevice->NotifyList);\r | |
ed838d0c | 539 | \r |
813acf3a | 540 | ReleaseKeyboardLayoutResources (UsbKeyboardDevice);\r |
541 | gBS->CloseEvent (UsbKeyboardDevice->KeyboardLayoutEvent);\r | |
542 | \r | |
ed838d0c | 543 | if (UsbKeyboardDevice->ControllerNameTable != NULL) {\r |
544 | FreeUnicodeStringTable (UsbKeyboardDevice->ControllerNameTable);\r | |
545 | }\r | |
546 | \r | |
c1fd2767 RN |
547 | DestroyQueue (&UsbKeyboardDevice->UsbKeyQueue);\r |
548 | DestroyQueue (&UsbKeyboardDevice->EfiKeyQueue);\r | |
549 | \r | |
c92e277d | 550 | FreePool (UsbKeyboardDevice);\r |
ed838d0c | 551 | \r |
552 | return Status;\r | |
ed838d0c | 553 | }\r |
554 | \r | |
a7022cec | 555 | /**\r |
b4e73a63 | 556 | Internal function to read the next keystroke from the keyboard buffer.\r |
a7022cec | 557 | \r |
b4e73a63 | 558 | @param UsbKeyboardDevice USB keyboard's private structure.\r |
559 | @param KeyData A pointer to buffer to hold the keystroke\r | |
560 | data for the key that was pressed.\r | |
a7022cec | 561 | \r |
b4e73a63 | 562 | @retval EFI_SUCCESS The keystroke information was returned.\r |
563 | @retval EFI_NOT_READY There was no keystroke data availiable.\r | |
564 | @retval EFI_DEVICE_ERROR The keystroke information was not returned due to\r | |
a7022cec | 565 | hardware errors.\r |
b4e73a63 | 566 | @retval EFI_INVALID_PARAMETER KeyData is NULL.\r |
567 | @retval Others Fail to translate keycode into EFI_INPUT_KEY\r | |
a7022cec | 568 | \r |
569 | **/\r | |
66aa04e4 | 570 | EFI_STATUS\r |
571 | USBKeyboardReadKeyStrokeWorker (\r | |
b4e73a63 | 572 | IN OUT USB_KB_DEV *UsbKeyboardDevice,\r |
573 | OUT EFI_KEY_DATA *KeyData\r | |
66aa04e4 | 574 | )\r |
66aa04e4 | 575 | {\r |
66aa04e4 | 576 | if (KeyData == NULL) {\r |
577 | return EFI_INVALID_PARAMETER;\r | |
578 | }\r | |
579 | \r | |
c1fd2767 RN |
580 | if (IsQueueEmpty (&UsbKeyboardDevice->EfiKeyQueue)) {\r |
581 | return EFI_NOT_READY;\r | |
66aa04e4 | 582 | }\r |
583 | \r | |
c1fd2767 | 584 | Dequeue (&UsbKeyboardDevice->EfiKeyQueue, KeyData, sizeof (*KeyData));\r |
66aa04e4 | 585 | \r |
586 | return EFI_SUCCESS;\r | |
66aa04e4 | 587 | }\r |
a7022cec | 588 | \r |
589 | /**\r | |
e15c65a3 | 590 | Reset the input device and optionally run diagnostics\r |
5899f27e | 591 | \r |
592 | There are 2 types of reset for USB keyboard.\r | |
593 | For non-exhaustive reset, only keyboard buffer is cleared.\r | |
594 | For exhaustive reset, in addition to clearance of keyboard buffer, the hardware status\r | |
595 | is also re-initialized.\r | |
a7022cec | 596 | \r |
b4e73a63 | 597 | @param This Protocol instance pointer.\r |
598 | @param ExtendedVerification Driver may perform diagnostics on reset.\r | |
a7022cec | 599 | \r |
b4e73a63 | 600 | @retval EFI_SUCCESS The device was reset.\r |
601 | @retval EFI_DEVICE_ERROR The device is not functioning properly and could not be reset.\r | |
a7022cec | 602 | \r |
603 | **/\r | |
ed838d0c | 604 | EFI_STATUS\r |
605 | EFIAPI\r | |
606 | USBKeyboardReset (\r | |
607 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
5899f27e | 608 | IN BOOLEAN ExtendedVerification\r |
ed838d0c | 609 | )\r |
610 | {\r | |
611 | EFI_STATUS Status;\r | |
612 | USB_KB_DEV *UsbKeyboardDevice;\r | |
ed838d0c | 613 | \r |
614 | UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (This);\r | |
615 | \r | |
5899f27e | 616 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
ed838d0c | 617 | EFI_PROGRESS_CODE,\r |
f9876ecf | 618 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_RESET),\r |
5899f27e | 619 | UsbKeyboardDevice->DevicePath\r |
ed838d0c | 620 | );\r |
621 | \r | |
622 | //\r | |
5899f27e | 623 | // Non-exhaustive reset:\r |
ed838d0c | 624 | // only reset private data structures.\r |
625 | //\r | |
626 | if (!ExtendedVerification) {\r | |
5899f27e | 627 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
ed838d0c | 628 | EFI_PROGRESS_CODE,\r |
f9876ecf | 629 | (EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_PC_CLEAR_BUFFER),\r |
5899f27e | 630 | UsbKeyboardDevice->DevicePath\r |
ed838d0c | 631 | );\r |
5899f27e | 632 | //\r |
633 | // Clear the key buffer of this USB keyboard\r | |
634 | //\r | |
c1fd2767 RN |
635 | InitQueue (&UsbKeyboardDevice->UsbKeyQueue, sizeof (USB_KEY));\r |
636 | InitQueue (&UsbKeyboardDevice->EfiKeyQueue, sizeof (EFI_KEY_DATA));\r | |
5899f27e | 637 | \r |
ed838d0c | 638 | return EFI_SUCCESS;\r |
639 | }\r | |
640 | \r | |
641 | //\r | |
642 | // Exhaustive reset\r | |
643 | //\r | |
5899f27e | 644 | Status = InitUSBKeyboard (UsbKeyboardDevice);\r |
ed838d0c | 645 | if (EFI_ERROR (Status)) {\r |
646 | return EFI_DEVICE_ERROR;\r | |
647 | }\r | |
648 | \r | |
649 | return EFI_SUCCESS;\r | |
650 | }\r | |
651 | \r | |
652 | \r | |
653 | /**\r | |
b4e73a63 | 654 | Reads the next keystroke from the input device.\r |
ed838d0c | 655 | \r |
a7022cec | 656 | @param This The EFI_SIMPLE_TEXT_INPUT_PROTOCOL instance.\r |
657 | @param Key A pointer to a buffer that is filled in with the keystroke\r | |
658 | information for the key that was pressed.\r | |
ed838d0c | 659 | \r |
b4e73a63 | 660 | @retval EFI_SUCCESS The keystroke information was returned.\r |
661 | @retval EFI_NOT_READY There was no keystroke data availiable.\r | |
e15c65a3 | 662 | @retval EFI_DEVICE_ERROR The keystroke information was not returned due to\r |
b4e73a63 | 663 | hardware errors.\r |
ed838d0c | 664 | \r |
665 | **/\r | |
ed838d0c | 666 | EFI_STATUS\r |
667 | EFIAPI\r | |
668 | USBKeyboardReadKeyStroke (\r | |
669 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
5899f27e | 670 | OUT EFI_INPUT_KEY *Key\r |
ed838d0c | 671 | )\r |
672 | {\r | |
66aa04e4 | 673 | USB_KB_DEV *UsbKeyboardDevice;\r |
674 | EFI_STATUS Status;\r | |
675 | EFI_KEY_DATA KeyData;\r | |
ed838d0c | 676 | \r |
677 | UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (This);\r | |
678 | \r | |
66aa04e4 | 679 | Status = USBKeyboardReadKeyStrokeWorker (UsbKeyboardDevice, &KeyData);\r |
680 | if (EFI_ERROR (Status)) {\r | |
681 | return Status;\r | |
ed838d0c | 682 | }\r |
683 | \r | |
66aa04e4 | 684 | CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));\r |
ed838d0c | 685 | \r |
66aa04e4 | 686 | return EFI_SUCCESS;\r |
ed838d0c | 687 | }\r |
688 | \r | |
689 | \r | |
690 | /**\r | |
b4e73a63 | 691 | Event notification function registered for EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx\r |
692 | and EFI_SIMPLE_TEXT_INPUT_PROTOCOL.WaitForKey.\r | |
ed838d0c | 693 | \r |
a7022cec | 694 | @param Event Event to be signaled when a key is pressed.\r |
695 | @param Context Points to USB_KB_DEV instance.\r | |
ed838d0c | 696 | \r |
697 | **/\r | |
ed838d0c | 698 | VOID\r |
699 | EFIAPI\r | |
700 | USBKeyboardWaitForKey (\r | |
701 | IN EFI_EVENT Event,\r | |
702 | IN VOID *Context\r | |
703 | )\r | |
704 | {\r | |
705 | USB_KB_DEV *UsbKeyboardDevice;\r | |
706 | \r | |
707 | UsbKeyboardDevice = (USB_KB_DEV *) Context;\r | |
708 | \r | |
c1fd2767 RN |
709 | if (!IsQueueEmpty (&UsbKeyboardDevice->EfiKeyQueue)) {\r |
710 | //\r | |
711 | // If there is pending key, signal the event.\r | |
712 | //\r | |
713 | gBS->SignalEvent (Event);\r | |
ed838d0c | 714 | }\r |
ed838d0c | 715 | }\r |
716 | \r | |
ed838d0c | 717 | /**\r |
c1fd2767 | 718 | Timer handler to convert the key from USB.\r |
ed838d0c | 719 | \r |
c1fd2767 RN |
720 | @param Event Indicates the event that invoke this function.\r |
721 | @param Context Indicates the calling context.\r | |
ed838d0c | 722 | **/\r |
c1fd2767 | 723 | VOID\r |
a7022cec | 724 | EFIAPI\r |
c1fd2767 RN |
725 | USBKeyboardTimerHandler (\r |
726 | IN EFI_EVENT Event,\r | |
727 | IN VOID *Context\r | |
ed838d0c | 728 | )\r |
729 | {\r | |
c1fd2767 RN |
730 | EFI_STATUS Status;\r |
731 | USB_KB_DEV *UsbKeyboardDevice;\r | |
732 | UINT8 KeyCode;\r | |
733 | EFI_KEY_DATA KeyData;\r | |
ed838d0c | 734 | \r |
c1fd2767 RN |
735 | UsbKeyboardDevice = (USB_KB_DEV *) Context;\r |
736 | \r | |
ed838d0c | 737 | //\r |
b4e73a63 | 738 | // Fetch raw data from the USB keyboard buffer,\r |
739 | // and translate it into USB keycode.\r | |
ed838d0c | 740 | //\r |
b4e73a63 | 741 | Status = USBParseKey (UsbKeyboardDevice, &KeyCode);\r |
ed838d0c | 742 | if (EFI_ERROR (Status)) {\r |
c1fd2767 | 743 | return ;\r |
ed838d0c | 744 | }\r |
745 | \r | |
c1fd2767 RN |
746 | //\r |
747 | // Translate saved USB keycode into EFI_INPUT_KEY\r | |
748 | //\r | |
749 | Status = UsbKeyCodeToEfiInputKey (UsbKeyboardDevice, KeyCode, &KeyData);\r | |
750 | if (EFI_ERROR (Status)) {\r | |
751 | return ;\r | |
752 | }\r | |
753 | \r | |
754 | //\r | |
755 | // Insert to the EFI Key queue\r | |
756 | //\r | |
757 | Enqueue (&UsbKeyboardDevice->EfiKeyQueue, &KeyData, sizeof (KeyData));\r | |
ed838d0c | 758 | }\r |
759 | \r | |
a7022cec | 760 | /**\r |
761 | Free keyboard notify list.\r | |
66aa04e4 | 762 | \r |
b4e73a63 | 763 | @param NotifyList The keyboard notify list to free.\r |
66aa04e4 | 764 | \r |
a7022cec | 765 | @retval EFI_SUCCESS Free the notify list successfully.\r |
b4e73a63 | 766 | @retval EFI_INVALID_PARAMETER NotifyList is NULL.\r |
66aa04e4 | 767 | \r |
a7022cec | 768 | **/\r |
769 | EFI_STATUS\r | |
a7022cec | 770 | KbdFreeNotifyList (\r |
b4e73a63 | 771 | IN OUT LIST_ENTRY *NotifyList\r |
a7022cec | 772 | )\r |
66aa04e4 | 773 | {\r |
774 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *NotifyNode;\r | |
b4e73a63 | 775 | LIST_ENTRY *Link;\r |
66aa04e4 | 776 | \r |
b4e73a63 | 777 | if (NotifyList == NULL) {\r |
66aa04e4 | 778 | return EFI_INVALID_PARAMETER;\r |
779 | }\r | |
b4e73a63 | 780 | while (!IsListEmpty (NotifyList)) {\r |
781 | Link = GetFirstNode (NotifyList);\r | |
782 | NotifyNode = CR (Link, KEYBOARD_CONSOLE_IN_EX_NOTIFY, NotifyEntry, USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE);\r | |
783 | RemoveEntryList (Link);\r | |
c92e277d | 784 | FreePool (NotifyNode);\r |
66aa04e4 | 785 | }\r |
786 | \r | |
787 | return EFI_SUCCESS;\r | |
788 | }\r | |
789 | \r | |
a7022cec | 790 | /**\r |
b4e73a63 | 791 | Check whether the pressed key matches a registered key or not.\r |
a7022cec | 792 | \r |
b4e73a63 | 793 | @param RegsiteredData A pointer to keystroke data for the key that was registered.\r |
794 | @param InputData A pointer to keystroke data for the key that was pressed.\r | |
a7022cec | 795 | \r |
796 | @retval TRUE Key pressed matches a registered key.\r | |
e15c65a3 | 797 | @retval FLASE Key pressed does not matches a registered key.\r |
a7022cec | 798 | \r |
799 | **/\r | |
66aa04e4 | 800 | BOOLEAN\r |
801 | IsKeyRegistered (\r | |
802 | IN EFI_KEY_DATA *RegsiteredData,\r | |
803 | IN EFI_KEY_DATA *InputData\r | |
804 | )\r | |
66aa04e4 | 805 | {\r |
806 | ASSERT (RegsiteredData != NULL && InputData != NULL);\r | |
807 | \r | |
808 | if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||\r | |
809 | (RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {\r | |
810 | return FALSE; \r | |
811 | } \r | |
812 | \r | |
813 | //\r | |
814 | // Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.\r | |
815 | //\r | |
816 | if (RegsiteredData->KeyState.KeyShiftState != 0 &&\r | |
817 | RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState) {\r | |
818 | return FALSE; \r | |
819 | } \r | |
820 | if (RegsiteredData->KeyState.KeyToggleState != 0 &&\r | |
821 | RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState) {\r | |
822 | return FALSE; \r | |
823 | } \r | |
824 | \r | |
825 | return TRUE;\r | |
66aa04e4 | 826 | }\r |
827 | \r | |
828 | //\r | |
829 | // Simple Text Input Ex protocol functions \r | |
830 | //\r | |
a7022cec | 831 | /**\r |
b4e73a63 | 832 | Resets the input device hardware.\r |
833 | \r | |
834 | The Reset() function resets the input device hardware. As part\r | |
835 | of initialization process, the firmware/device will make a quick\r | |
836 | but reasonable attempt to verify that the device is functioning.\r | |
837 | If the ExtendedVerification flag is TRUE the firmware may take\r | |
838 | an extended amount of time to verify the device is operating on\r | |
839 | reset. Otherwise the reset operation is to occur as quickly as\r | |
840 | possible. The hardware verification process is not defined by\r | |
841 | this specification and is left up to the platform firmware or\r | |
842 | driver to implement.\r | |
a7022cec | 843 | \r |
b4e73a63 | 844 | @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r |
a7022cec | 845 | \r |
b4e73a63 | 846 | @param ExtendedVerification Indicates that the driver may perform a more exhaustive\r |
847 | verification operation of the device during reset.\r | |
848 | \r | |
849 | @retval EFI_SUCCESS The device was reset.\r | |
850 | @retval EFI_DEVICE_ERROR The device is not functioning correctly and could not be reset.\r | |
a7022cec | 851 | \r |
852 | **/\r | |
66aa04e4 | 853 | EFI_STATUS\r |
854 | EFIAPI\r | |
855 | USBKeyboardResetEx (\r | |
856 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
857 | IN BOOLEAN ExtendedVerification\r | |
858 | )\r | |
66aa04e4 | 859 | {\r |
860 | EFI_STATUS Status;\r | |
861 | USB_KB_DEV *UsbKeyboardDevice;\r | |
66aa04e4 | 862 | \r |
863 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
864 | \r | |
865 | Status = UsbKeyboardDevice->SimpleInput.Reset (&UsbKeyboardDevice->SimpleInput, ExtendedVerification);\r | |
866 | if (EFI_ERROR (Status)) {\r | |
867 | return EFI_DEVICE_ERROR;\r | |
868 | }\r | |
869 | \r | |
66aa04e4 | 870 | return EFI_SUCCESS;\r |
871 | \r | |
872 | }\r | |
873 | \r | |
a7022cec | 874 | /**\r |
b4e73a63 | 875 | Reads the next keystroke from the input device.\r |
a7022cec | 876 | \r |
b4e73a63 | 877 | @param This Protocol instance pointer.\r |
878 | @param KeyData A pointer to a buffer that is filled in with the keystroke\r | |
879 | state data for the key that was pressed.\r | |
a7022cec | 880 | \r |
b4e73a63 | 881 | @retval EFI_SUCCESS The keystroke information was returned.\r |
882 | @retval EFI_NOT_READY There was no keystroke data available.\r | |
883 | @retval EFI_DEVICE_ERROR The keystroke information was not returned due to\r | |
884 | hardware errors.\r | |
885 | @retval EFI_INVALID_PARAMETER KeyData is NULL.\r | |
a7022cec | 886 | \r |
887 | **/\r | |
66aa04e4 | 888 | EFI_STATUS\r |
889 | EFIAPI\r | |
890 | USBKeyboardReadKeyStrokeEx (\r | |
891 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
892 | OUT EFI_KEY_DATA *KeyData\r | |
893 | )\r | |
66aa04e4 | 894 | {\r |
895 | USB_KB_DEV *UsbKeyboardDevice;\r | |
896 | \r | |
897 | if (KeyData == NULL) {\r | |
898 | return EFI_INVALID_PARAMETER;\r | |
899 | }\r | |
900 | \r | |
901 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
902 | \r | |
903 | return USBKeyboardReadKeyStrokeWorker (UsbKeyboardDevice, KeyData);\r | |
904 | \r | |
905 | }\r | |
906 | \r | |
a7022cec | 907 | /**\r |
908 | Set certain state for the input device.\r | |
909 | \r | |
910 | @param This Protocol instance pointer.\r | |
911 | @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the\r | |
912 | state for the input device.\r | |
913 | \r | |
b4e73a63 | 914 | @retval EFI_SUCCESS The device state was set appropriately.\r |
915 | @retval EFI_DEVICE_ERROR The device is not functioning correctly and could\r | |
916 | not have the setting adjusted.\r | |
917 | @retval EFI_UNSUPPORTED The device does not support the ability to have its state set.\r | |
a7022cec | 918 | @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.\r |
919 | \r | |
920 | **/\r | |
66aa04e4 | 921 | EFI_STATUS\r |
922 | EFIAPI\r | |
923 | USBKeyboardSetState (\r | |
924 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
925 | IN EFI_KEY_TOGGLE_STATE *KeyToggleState\r | |
926 | )\r | |
66aa04e4 | 927 | {\r |
928 | USB_KB_DEV *UsbKeyboardDevice;\r | |
929 | \r | |
930 | if (KeyToggleState == NULL) {\r | |
931 | return EFI_INVALID_PARAMETER;\r | |
932 | }\r | |
933 | \r | |
934 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
935 | \r | |
c1fd2767 | 936 | if ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) {\r |
66aa04e4 | 937 | return EFI_UNSUPPORTED;\r |
938 | }\r | |
939 | \r | |
940 | //\r | |
941 | // Update the status light\r | |
942 | //\r | |
943 | \r | |
b4e73a63 | 944 | UsbKeyboardDevice->ScrollOn = FALSE;\r |
945 | UsbKeyboardDevice->NumLockOn = FALSE;\r | |
946 | UsbKeyboardDevice->CapsOn = FALSE;\r | |
66aa04e4 | 947 | \r |
948 | if ((*KeyToggleState & EFI_SCROLL_LOCK_ACTIVE) == EFI_SCROLL_LOCK_ACTIVE) {\r | |
b4e73a63 | 949 | UsbKeyboardDevice->ScrollOn = TRUE;\r |
66aa04e4 | 950 | }\r |
951 | if ((*KeyToggleState & EFI_NUM_LOCK_ACTIVE) == EFI_NUM_LOCK_ACTIVE) {\r | |
b4e73a63 | 952 | UsbKeyboardDevice->NumLockOn = TRUE;\r |
66aa04e4 | 953 | }\r |
954 | if ((*KeyToggleState & EFI_CAPS_LOCK_ACTIVE) == EFI_CAPS_LOCK_ACTIVE) {\r | |
b4e73a63 | 955 | UsbKeyboardDevice->CapsOn = TRUE;\r |
66aa04e4 | 956 | }\r |
957 | \r | |
958 | SetKeyLED (UsbKeyboardDevice);\r | |
959 | \r | |
66aa04e4 | 960 | return EFI_SUCCESS;\r |
961 | \r | |
962 | }\r | |
963 | \r | |
a7022cec | 964 | /**\r |
965 | Register a notification function for a particular keystroke for the input device.\r | |
966 | \r | |
967 | @param This Protocol instance pointer.\r | |
968 | @param KeyData A pointer to a buffer that is filled in with the keystroke\r | |
969 | information data for the key that was pressed.\r | |
970 | @param KeyNotificationFunction Points to the function to be called when the key\r | |
971 | sequence is typed specified by KeyData.\r | |
972 | @param NotifyHandle Points to the unique handle assigned to the registered notification.\r | |
973 | \r | |
974 | @retval EFI_SUCCESS The notification function was registered successfully.\r | |
e15c65a3 | 975 | @retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necessary data structures.\r |
b4e73a63 | 976 | @retval EFI_INVALID_PARAMETER KeyData or NotifyHandle or KeyNotificationFunction is NULL.\r |
a7022cec | 977 | \r |
978 | **/\r | |
66aa04e4 | 979 | EFI_STATUS\r |
980 | EFIAPI\r | |
981 | USBKeyboardRegisterKeyNotify (\r | |
982 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
983 | IN EFI_KEY_DATA *KeyData,\r | |
984 | IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,\r | |
a7022cec | 985 | OUT EFI_HANDLE *NotifyHandle\r |
66aa04e4 | 986 | )\r |
66aa04e4 | 987 | {\r |
988 | USB_KB_DEV *UsbKeyboardDevice;\r | |
66aa04e4 | 989 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *NewNotify;\r |
990 | LIST_ENTRY *Link;\r | |
e15c65a3 | 991 | LIST_ENTRY *NotifyList;\r |
66aa04e4 | 992 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify; \r |
993 | \r | |
994 | if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {\r | |
995 | return EFI_INVALID_PARAMETER;\r | |
996 | }\r | |
997 | \r | |
998 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
999 | \r | |
1000 | //\r | |
1001 | // Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.\r | |
1002 | //\r | |
e15c65a3 | 1003 | NotifyList = &UsbKeyboardDevice->NotifyList;\r |
1004 | \r | |
1005 | for (Link = GetFirstNode (NotifyList);\r | |
1006 | !IsNull (NotifyList, Link);\r | |
1007 | Link = GetNextNode (NotifyList, Link)) {\r | |
66aa04e4 | 1008 | CurrentNotify = CR (\r |
1009 | Link, \r | |
1010 | KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r | |
1011 | NotifyEntry, \r | |
1012 | USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r | |
1013 | );\r | |
1014 | if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) { \r | |
1015 | if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {\r | |
1016 | *NotifyHandle = CurrentNotify->NotifyHandle; \r | |
1017 | return EFI_SUCCESS;\r | |
1018 | }\r | |
1019 | }\r | |
1020 | }\r | |
1021 | \r | |
1022 | //\r | |
1023 | // Allocate resource to save the notification function\r | |
1024 | // \r | |
1025 | NewNotify = (KEYBOARD_CONSOLE_IN_EX_NOTIFY *) AllocateZeroPool (sizeof (KEYBOARD_CONSOLE_IN_EX_NOTIFY));\r | |
1026 | if (NewNotify == NULL) {\r | |
1027 | return EFI_OUT_OF_RESOURCES;\r | |
1028 | }\r | |
1029 | \r | |
1030 | NewNotify->Signature = USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE; \r | |
1031 | NewNotify->KeyNotificationFn = KeyNotificationFunction;\r | |
7fc80d44 | 1032 | NewNotify->NotifyHandle = (EFI_HANDLE) NewNotify;\r |
66aa04e4 | 1033 | CopyMem (&NewNotify->KeyData, KeyData, sizeof (EFI_KEY_DATA));\r |
1034 | InsertTailList (&UsbKeyboardDevice->NotifyList, &NewNotify->NotifyEntry);\r | |
1035 | \r | |
7fc80d44 | 1036 | \r |
66aa04e4 | 1037 | *NotifyHandle = NewNotify->NotifyHandle; \r |
1038 | \r | |
1039 | return EFI_SUCCESS;\r | |
1040 | \r | |
1041 | }\r | |
1042 | \r | |
a7022cec | 1043 | /**\r |
1044 | Remove a registered notification function from a particular keystroke.\r | |
1045 | \r | |
1046 | @param This Protocol instance pointer.\r | |
1047 | @param NotificationHandle The handle of the notification function being unregistered.\r | |
1048 | \r | |
1049 | @retval EFI_SUCCESS The notification function was unregistered successfully.\r | |
b4e73a63 | 1050 | @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid\r |
a7022cec | 1051 | \r |
1052 | **/\r | |
66aa04e4 | 1053 | EFI_STATUS\r |
1054 | EFIAPI\r | |
1055 | USBKeyboardUnregisterKeyNotify (\r | |
1056 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
1057 | IN EFI_HANDLE NotificationHandle\r | |
1058 | )\r | |
66aa04e4 | 1059 | {\r |
1060 | USB_KB_DEV *UsbKeyboardDevice;\r | |
66aa04e4 | 1061 | KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;\r |
1062 | LIST_ENTRY *Link;\r | |
e15c65a3 | 1063 | LIST_ENTRY *NotifyList;\r |
66aa04e4 | 1064 | \r |
1065 | if (NotificationHandle == NULL) {\r | |
1066 | return EFI_INVALID_PARAMETER;\r | |
1067 | } \r | |
0dc99784 | 1068 | \r |
1069 | if (((KEYBOARD_CONSOLE_IN_EX_NOTIFY *) NotificationHandle)->Signature != USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE) {\r | |
1070 | return EFI_INVALID_PARAMETER;\r | |
1071 | } \r | |
66aa04e4 | 1072 | \r |
1073 | UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r | |
1074 | \r | |
5899f27e | 1075 | //\r |
1076 | // Traverse notify list of USB keyboard and remove the entry of NotificationHandle.\r | |
1077 | //\r | |
e15c65a3 | 1078 | NotifyList = &UsbKeyboardDevice->NotifyList;\r |
1079 | for (Link = GetFirstNode (NotifyList);\r | |
1080 | !IsNull (NotifyList, Link);\r | |
1081 | Link = GetNextNode (NotifyList, Link)) {\r | |
66aa04e4 | 1082 | CurrentNotify = CR (\r |
1083 | Link, \r | |
1084 | KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r | |
1085 | NotifyEntry, \r | |
1086 | USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r | |
1087 | ); \r | |
1088 | if (CurrentNotify->NotifyHandle == NotificationHandle) {\r | |
1089 | //\r | |
1090 | // Remove the notification function from NotifyList and free resources\r | |
1091 | //\r | |
1092 | RemoveEntryList (&CurrentNotify->NotifyEntry); \r | |
7fc80d44 | 1093 | \r |
c92e277d | 1094 | FreePool (CurrentNotify); \r |
66aa04e4 | 1095 | return EFI_SUCCESS;\r |
1096 | }\r | |
1097 | }\r | |
1098 | \r | |
8a67d804 | 1099 | //\r |
1100 | // Cannot find the matching entry in database.\r | |
1101 | //\r | |
1102 | return EFI_INVALID_PARAMETER; \r | |
66aa04e4 | 1103 | }\r |
1104 | \r |