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1 | /** @file\r | |
2 | USB Mouse Driver that manages USB mouse and produces Simple Pointer Protocol.\r | |
3 | \r | |
4 | Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
6 | \r | |
7 | **/\r | |
8 | \r | |
9 | #include "UsbMouse.h"\r | |
10 | \r | |
11 | EFI_DRIVER_BINDING_PROTOCOL gUsbMouseDriverBinding = {\r | |
12 | USBMouseDriverBindingSupported,\r | |
13 | USBMouseDriverBindingStart,\r | |
14 | USBMouseDriverBindingStop,\r | |
15 | 0xa,\r | |
16 | NULL,\r | |
17 | NULL\r | |
18 | };\r | |
19 | \r | |
20 | /**\r | |
21 | Entrypoint of USB Mouse Driver.\r | |
22 | \r | |
23 | This function is the entrypoint of USB Mouse Driver. It installs Driver Binding\r | |
24 | Protocols together with Component Name Protocols.\r | |
25 | \r | |
26 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
27 | @param SystemTable A pointer to the EFI System Table.\r | |
28 | \r | |
29 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
30 | \r | |
31 | **/\r | |
32 | EFI_STATUS\r | |
33 | EFIAPI\r | |
34 | USBMouseDriverBindingEntryPoint (\r | |
35 | IN EFI_HANDLE ImageHandle,\r | |
36 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
37 | )\r | |
38 | {\r | |
39 | EFI_STATUS Status;\r | |
40 | \r | |
41 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
42 | ImageHandle,\r | |
43 | SystemTable,\r | |
44 | &gUsbMouseDriverBinding,\r | |
45 | ImageHandle,\r | |
46 | &gUsbMouseComponentName,\r | |
47 | &gUsbMouseComponentName2\r | |
48 | );\r | |
49 | ASSERT_EFI_ERROR (Status);\r | |
50 | \r | |
51 | return EFI_SUCCESS;\r | |
52 | }\r | |
53 | \r | |
54 | /**\r | |
55 | Check whether USB mouse driver supports this device.\r | |
56 | \r | |
57 | @param This The USB mouse driver binding protocol.\r | |
58 | @param Controller The controller handle to check.\r | |
59 | @param RemainingDevicePath The remaining device path.\r | |
60 | \r | |
61 | @retval EFI_SUCCESS The driver supports this controller.\r | |
62 | @retval other This device isn't supported.\r | |
63 | \r | |
64 | **/\r | |
65 | EFI_STATUS\r | |
66 | EFIAPI\r | |
67 | USBMouseDriverBindingSupported (\r | |
68 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
69 | IN EFI_HANDLE Controller,\r | |
70 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
71 | )\r | |
72 | {\r | |
73 | EFI_STATUS Status;\r | |
74 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
75 | \r | |
76 | Status = gBS->OpenProtocol (\r | |
77 | Controller,\r | |
78 | &gEfiUsbIoProtocolGuid,\r | |
79 | (VOID **)&UsbIo,\r | |
80 | This->DriverBindingHandle,\r | |
81 | Controller,\r | |
82 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
83 | );\r | |
84 | if (EFI_ERROR (Status)) {\r | |
85 | return Status;\r | |
86 | }\r | |
87 | \r | |
88 | //\r | |
89 | // Use the USB I/O Protocol interface to check whether Controller is\r | |
90 | // a mouse device that can be managed by this driver.\r | |
91 | //\r | |
92 | Status = EFI_SUCCESS;\r | |
93 | if (!IsUsbMouse (UsbIo)) {\r | |
94 | Status = EFI_UNSUPPORTED;\r | |
95 | }\r | |
96 | \r | |
97 | gBS->CloseProtocol (\r | |
98 | Controller,\r | |
99 | &gEfiUsbIoProtocolGuid,\r | |
100 | This->DriverBindingHandle,\r | |
101 | Controller\r | |
102 | );\r | |
103 | \r | |
104 | return Status;\r | |
105 | }\r | |
106 | \r | |
107 | /**\r | |
108 | Starts the mouse device with this driver.\r | |
109 | \r | |
110 | This function consumes USB I/O Protocol, initializes USB mouse device,\r | |
111 | installs Simple Pointer Protocol, and submits Asynchronous Interrupt\r | |
112 | Transfer to manage the USB mouse device.\r | |
113 | \r | |
114 | @param This The USB mouse driver binding instance.\r | |
115 | @param Controller Handle of device to bind driver to.\r | |
116 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
117 | device to start.\r | |
118 | \r | |
119 | @retval EFI_SUCCESS This driver supports this device.\r | |
120 | @retval EFI_UNSUPPORTED This driver does not support this device.\r | |
121 | @retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.\r | |
122 | @retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.\r | |
123 | @retval EFI_ALREADY_STARTED This driver has been started.\r | |
124 | \r | |
125 | **/\r | |
126 | EFI_STATUS\r | |
127 | EFIAPI\r | |
128 | USBMouseDriverBindingStart (\r | |
129 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
130 | IN EFI_HANDLE Controller,\r | |
131 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
132 | )\r | |
133 | {\r | |
134 | EFI_STATUS Status;\r | |
135 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
136 | USB_MOUSE_DEV *UsbMouseDevice;\r | |
137 | UINT8 EndpointNumber;\r | |
138 | EFI_USB_ENDPOINT_DESCRIPTOR EndpointDescriptor;\r | |
139 | UINT8 Index;\r | |
140 | UINT8 EndpointAddr;\r | |
141 | UINT8 PollingInterval;\r | |
142 | UINT8 PacketSize;\r | |
143 | BOOLEAN Found;\r | |
144 | EFI_TPL OldTpl;\r | |
145 | \r | |
146 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
147 | //\r | |
148 | // Open USB I/O Protocol\r | |
149 | //\r | |
150 | Status = gBS->OpenProtocol (\r | |
151 | Controller,\r | |
152 | &gEfiUsbIoProtocolGuid,\r | |
153 | (VOID **)&UsbIo,\r | |
154 | This->DriverBindingHandle,\r | |
155 | Controller,\r | |
156 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
157 | );\r | |
158 | if (EFI_ERROR (Status)) {\r | |
159 | goto ErrorExit1;\r | |
160 | }\r | |
161 | \r | |
162 | UsbMouseDevice = AllocateZeroPool (sizeof (USB_MOUSE_DEV));\r | |
163 | ASSERT (UsbMouseDevice != NULL);\r | |
164 | \r | |
165 | UsbMouseDevice->UsbIo = UsbIo;\r | |
166 | UsbMouseDevice->Signature = USB_MOUSE_DEV_SIGNATURE;\r | |
167 | \r | |
168 | //\r | |
169 | // Get the Device Path Protocol on Controller's handle\r | |
170 | //\r | |
171 | Status = gBS->OpenProtocol (\r | |
172 | Controller,\r | |
173 | &gEfiDevicePathProtocolGuid,\r | |
174 | (VOID **)&UsbMouseDevice->DevicePath,\r | |
175 | This->DriverBindingHandle,\r | |
176 | Controller,\r | |
177 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
178 | );\r | |
179 | \r | |
180 | if (EFI_ERROR (Status)) {\r | |
181 | goto ErrorExit;\r | |
182 | }\r | |
183 | \r | |
184 | //\r | |
185 | // Report Status Code here since USB mouse will be detected next.\r | |
186 | //\r | |
187 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
188 | EFI_PROGRESS_CODE,\r | |
189 | (EFI_PERIPHERAL_MOUSE | EFI_P_PC_PRESENCE_DETECT),\r | |
190 | UsbMouseDevice->DevicePath\r | |
191 | );\r | |
192 | \r | |
193 | //\r | |
194 | // Get interface & endpoint descriptor\r | |
195 | //\r | |
196 | UsbIo->UsbGetInterfaceDescriptor (\r | |
197 | UsbIo,\r | |
198 | &UsbMouseDevice->InterfaceDescriptor\r | |
199 | );\r | |
200 | \r | |
201 | EndpointNumber = UsbMouseDevice->InterfaceDescriptor.NumEndpoints;\r | |
202 | \r | |
203 | //\r | |
204 | // Traverse endpoints to find interrupt endpoint IN\r | |
205 | //\r | |
206 | Found = FALSE;\r | |
207 | for (Index = 0; Index < EndpointNumber; Index++) {\r | |
208 | UsbIo->UsbGetEndpointDescriptor (\r | |
209 | UsbIo,\r | |
210 | Index,\r | |
211 | &EndpointDescriptor\r | |
212 | );\r | |
213 | \r | |
214 | if (((EndpointDescriptor.Attributes & (BIT0 | BIT1)) == USB_ENDPOINT_INTERRUPT) &&\r | |
215 | ((EndpointDescriptor.EndpointAddress & USB_ENDPOINT_DIR_IN) != 0))\r | |
216 | {\r | |
217 | //\r | |
218 | // We only care interrupt endpoint here\r | |
219 | //\r | |
220 | CopyMem (&UsbMouseDevice->IntEndpointDescriptor, &EndpointDescriptor, sizeof (EndpointDescriptor));\r | |
221 | Found = TRUE;\r | |
222 | break;\r | |
223 | }\r | |
224 | }\r | |
225 | \r | |
226 | if (!Found) {\r | |
227 | //\r | |
228 | // Report Status Code to indicate that there is no USB mouse\r | |
229 | //\r | |
230 | REPORT_STATUS_CODE (\r | |
231 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
232 | (EFI_PERIPHERAL_MOUSE | EFI_P_EC_NOT_DETECTED)\r | |
233 | );\r | |
234 | //\r | |
235 | // No interrupt endpoint found, then return unsupported.\r | |
236 | //\r | |
237 | Status = EFI_UNSUPPORTED;\r | |
238 | goto ErrorExit;\r | |
239 | }\r | |
240 | \r | |
241 | //\r | |
242 | // Report Status Code here since USB mouse has be detected.\r | |
243 | //\r | |
244 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
245 | EFI_PROGRESS_CODE,\r | |
246 | (EFI_PERIPHERAL_MOUSE | EFI_P_PC_DETECTED),\r | |
247 | UsbMouseDevice->DevicePath\r | |
248 | );\r | |
249 | \r | |
250 | Status = InitializeUsbMouseDevice (UsbMouseDevice);\r | |
251 | if (EFI_ERROR (Status)) {\r | |
252 | //\r | |
253 | // Fail to initialize USB mouse device.\r | |
254 | //\r | |
255 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
256 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
257 | (EFI_PERIPHERAL_MOUSE | EFI_P_EC_INTERFACE_ERROR),\r | |
258 | UsbMouseDevice->DevicePath\r | |
259 | );\r | |
260 | \r | |
261 | goto ErrorExit;\r | |
262 | }\r | |
263 | \r | |
264 | //\r | |
265 | // Initialize and install EFI Simple Pointer Protocol.\r | |
266 | //\r | |
267 | UsbMouseDevice->SimplePointerProtocol.GetState = GetMouseState;\r | |
268 | UsbMouseDevice->SimplePointerProtocol.Reset = UsbMouseReset;\r | |
269 | UsbMouseDevice->SimplePointerProtocol.Mode = &UsbMouseDevice->Mode;\r | |
270 | \r | |
271 | Status = gBS->CreateEvent (\r | |
272 | EVT_NOTIFY_WAIT,\r | |
273 | TPL_NOTIFY,\r | |
274 | UsbMouseWaitForInput,\r | |
275 | UsbMouseDevice,\r | |
276 | &((UsbMouseDevice->SimplePointerProtocol).WaitForInput)\r | |
277 | );\r | |
278 | if (EFI_ERROR (Status)) {\r | |
279 | goto ErrorExit;\r | |
280 | }\r | |
281 | \r | |
282 | Status = gBS->InstallProtocolInterface (\r | |
283 | &Controller,\r | |
284 | &gEfiSimplePointerProtocolGuid,\r | |
285 | EFI_NATIVE_INTERFACE,\r | |
286 | &UsbMouseDevice->SimplePointerProtocol\r | |
287 | );\r | |
288 | \r | |
289 | if (EFI_ERROR (Status)) {\r | |
290 | goto ErrorExit;\r | |
291 | }\r | |
292 | \r | |
293 | //\r | |
294 | // The next step would be submitting Asynchronous Interrupt Transfer on this mouse device.\r | |
295 | // After that we will be able to get key data from it. Thus this is deemed as\r | |
296 | // the enable action of the mouse, so report status code accordingly.\r | |
297 | //\r | |
298 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
299 | EFI_PROGRESS_CODE,\r | |
300 | (EFI_PERIPHERAL_MOUSE | EFI_P_PC_ENABLE),\r | |
301 | UsbMouseDevice->DevicePath\r | |
302 | );\r | |
303 | \r | |
304 | //\r | |
305 | // Submit Asynchronous Interrupt Transfer to manage this device.\r | |
306 | //\r | |
307 | EndpointAddr = UsbMouseDevice->IntEndpointDescriptor.EndpointAddress;\r | |
308 | PollingInterval = UsbMouseDevice->IntEndpointDescriptor.Interval;\r | |
309 | PacketSize = (UINT8)(UsbMouseDevice->IntEndpointDescriptor.MaxPacketSize);\r | |
310 | \r | |
311 | Status = UsbIo->UsbAsyncInterruptTransfer (\r | |
312 | UsbIo,\r | |
313 | EndpointAddr,\r | |
314 | TRUE,\r | |
315 | PollingInterval,\r | |
316 | PacketSize,\r | |
317 | OnMouseInterruptComplete,\r | |
318 | UsbMouseDevice\r | |
319 | );\r | |
320 | \r | |
321 | if (EFI_ERROR (Status)) {\r | |
322 | //\r | |
323 | // If submit error, uninstall that interface\r | |
324 | //\r | |
325 | gBS->UninstallProtocolInterface (\r | |
326 | Controller,\r | |
327 | &gEfiSimplePointerProtocolGuid,\r | |
328 | &UsbMouseDevice->SimplePointerProtocol\r | |
329 | );\r | |
330 | goto ErrorExit;\r | |
331 | }\r | |
332 | \r | |
333 | UsbMouseDevice->ControllerNameTable = NULL;\r | |
334 | AddUnicodeString2 (\r | |
335 | "eng",\r | |
336 | gUsbMouseComponentName.SupportedLanguages,\r | |
337 | &UsbMouseDevice->ControllerNameTable,\r | |
338 | L"Generic Usb Mouse",\r | |
339 | TRUE\r | |
340 | );\r | |
341 | AddUnicodeString2 (\r | |
342 | "en",\r | |
343 | gUsbMouseComponentName2.SupportedLanguages,\r | |
344 | &UsbMouseDevice->ControllerNameTable,\r | |
345 | L"Generic Usb Mouse",\r | |
346 | FALSE\r | |
347 | );\r | |
348 | \r | |
349 | gBS->RestoreTPL (OldTpl);\r | |
350 | \r | |
351 | return EFI_SUCCESS;\r | |
352 | \r | |
353 | //\r | |
354 | // Error handler\r | |
355 | //\r | |
356 | ErrorExit:\r | |
357 | if (EFI_ERROR (Status)) {\r | |
358 | gBS->CloseProtocol (\r | |
359 | Controller,\r | |
360 | &gEfiUsbIoProtocolGuid,\r | |
361 | This->DriverBindingHandle,\r | |
362 | Controller\r | |
363 | );\r | |
364 | \r | |
365 | if (UsbMouseDevice != NULL) {\r | |
366 | if ((UsbMouseDevice->SimplePointerProtocol).WaitForInput != NULL) {\r | |
367 | gBS->CloseEvent ((UsbMouseDevice->SimplePointerProtocol).WaitForInput);\r | |
368 | }\r | |
369 | \r | |
370 | FreePool (UsbMouseDevice);\r | |
371 | UsbMouseDevice = NULL;\r | |
372 | }\r | |
373 | }\r | |
374 | \r | |
375 | ErrorExit1:\r | |
376 | gBS->RestoreTPL (OldTpl);\r | |
377 | return Status;\r | |
378 | }\r | |
379 | \r | |
380 | /**\r | |
381 | Stop the USB mouse device handled by this driver.\r | |
382 | \r | |
383 | @param This The USB mouse driver binding protocol.\r | |
384 | @param Controller The controller to release.\r | |
385 | @param NumberOfChildren The number of handles in ChildHandleBuffer.\r | |
386 | @param ChildHandleBuffer The array of child handle.\r | |
387 | \r | |
388 | @retval EFI_SUCCESS The device was stopped.\r | |
389 | @retval EFI_UNSUPPORTED Simple Pointer Protocol is not installed on Controller.\r | |
390 | @retval Others Fail to uninstall protocols attached on the device.\r | |
391 | \r | |
392 | **/\r | |
393 | EFI_STATUS\r | |
394 | EFIAPI\r | |
395 | USBMouseDriverBindingStop (\r | |
396 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
397 | IN EFI_HANDLE Controller,\r | |
398 | IN UINTN NumberOfChildren,\r | |
399 | IN EFI_HANDLE *ChildHandleBuffer\r | |
400 | )\r | |
401 | {\r | |
402 | EFI_STATUS Status;\r | |
403 | USB_MOUSE_DEV *UsbMouseDevice;\r | |
404 | EFI_SIMPLE_POINTER_PROTOCOL *SimplePointerProtocol;\r | |
405 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
406 | \r | |
407 | Status = gBS->OpenProtocol (\r | |
408 | Controller,\r | |
409 | &gEfiSimplePointerProtocolGuid,\r | |
410 | (VOID **)&SimplePointerProtocol,\r | |
411 | This->DriverBindingHandle,\r | |
412 | Controller,\r | |
413 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
414 | );\r | |
415 | \r | |
416 | if (EFI_ERROR (Status)) {\r | |
417 | return EFI_UNSUPPORTED;\r | |
418 | }\r | |
419 | \r | |
420 | UsbMouseDevice = USB_MOUSE_DEV_FROM_MOUSE_PROTOCOL (SimplePointerProtocol);\r | |
421 | \r | |
422 | UsbIo = UsbMouseDevice->UsbIo;\r | |
423 | \r | |
424 | //\r | |
425 | // The key data input from this device will be disabled.\r | |
426 | //\r | |
427 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
428 | EFI_PROGRESS_CODE,\r | |
429 | (EFI_PERIPHERAL_MOUSE | EFI_P_PC_DISABLE),\r | |
430 | UsbMouseDevice->DevicePath\r | |
431 | );\r | |
432 | \r | |
433 | //\r | |
434 | // Delete the Asynchronous Interrupt Transfer from this device\r | |
435 | //\r | |
436 | UsbIo->UsbAsyncInterruptTransfer (\r | |
437 | UsbIo,\r | |
438 | UsbMouseDevice->IntEndpointDescriptor.EndpointAddress,\r | |
439 | FALSE,\r | |
440 | UsbMouseDevice->IntEndpointDescriptor.Interval,\r | |
441 | 0,\r | |
442 | NULL,\r | |
443 | NULL\r | |
444 | );\r | |
445 | \r | |
446 | Status = gBS->UninstallProtocolInterface (\r | |
447 | Controller,\r | |
448 | &gEfiSimplePointerProtocolGuid,\r | |
449 | &UsbMouseDevice->SimplePointerProtocol\r | |
450 | );\r | |
451 | if (EFI_ERROR (Status)) {\r | |
452 | return Status;\r | |
453 | }\r | |
454 | \r | |
455 | gBS->CloseProtocol (\r | |
456 | Controller,\r | |
457 | &gEfiUsbIoProtocolGuid,\r | |
458 | This->DriverBindingHandle,\r | |
459 | Controller\r | |
460 | );\r | |
461 | \r | |
462 | //\r | |
463 | // Free all resources.\r | |
464 | //\r | |
465 | gBS->CloseEvent (UsbMouseDevice->SimplePointerProtocol.WaitForInput);\r | |
466 | \r | |
467 | if (UsbMouseDevice->DelayedRecoveryEvent != NULL) {\r | |
468 | gBS->CloseEvent (UsbMouseDevice->DelayedRecoveryEvent);\r | |
469 | UsbMouseDevice->DelayedRecoveryEvent = NULL;\r | |
470 | }\r | |
471 | \r | |
472 | if (UsbMouseDevice->ControllerNameTable != NULL) {\r | |
473 | FreeUnicodeStringTable (UsbMouseDevice->ControllerNameTable);\r | |
474 | }\r | |
475 | \r | |
476 | FreePool (UsbMouseDevice);\r | |
477 | \r | |
478 | return EFI_SUCCESS;\r | |
479 | }\r | |
480 | \r | |
481 | /**\r | |
482 | Uses USB I/O to check whether the device is a USB mouse device.\r | |
483 | \r | |
484 | @param UsbIo Pointer to a USB I/O protocol instance.\r | |
485 | \r | |
486 | @retval TRUE Device is a USB mouse device.\r | |
487 | @retval FALSE Device is a not USB mouse device.\r | |
488 | \r | |
489 | **/\r | |
490 | BOOLEAN\r | |
491 | IsUsbMouse (\r | |
492 | IN EFI_USB_IO_PROTOCOL *UsbIo\r | |
493 | )\r | |
494 | {\r | |
495 | EFI_STATUS Status;\r | |
496 | EFI_USB_INTERFACE_DESCRIPTOR InterfaceDescriptor;\r | |
497 | \r | |
498 | //\r | |
499 | // Get the default interface descriptor\r | |
500 | //\r | |
501 | Status = UsbIo->UsbGetInterfaceDescriptor (\r | |
502 | UsbIo,\r | |
503 | &InterfaceDescriptor\r | |
504 | );\r | |
505 | \r | |
506 | if (EFI_ERROR (Status)) {\r | |
507 | return FALSE;\r | |
508 | }\r | |
509 | \r | |
510 | if ((InterfaceDescriptor.InterfaceClass == CLASS_HID) &&\r | |
511 | (InterfaceDescriptor.InterfaceSubClass == SUBCLASS_BOOT) &&\r | |
512 | (InterfaceDescriptor.InterfaceProtocol == PROTOCOL_MOUSE)\r | |
513 | )\r | |
514 | {\r | |
515 | return TRUE;\r | |
516 | }\r | |
517 | \r | |
518 | return FALSE;\r | |
519 | }\r | |
520 | \r | |
521 | /**\r | |
522 | Initialize the USB mouse device.\r | |
523 | \r | |
524 | This function retrieves and parses HID report descriptor, and\r | |
525 | initializes state of USB_MOUSE_DEV. Then it sets indefinite idle\r | |
526 | rate for the device. Finally it creates event for delayed recovery,\r | |
527 | which deals with device error.\r | |
528 | \r | |
529 | @param UsbMouseDev Device instance to be initialized.\r | |
530 | \r | |
531 | @retval EFI_SUCCESS USB mouse device successfully initialized..\r | |
532 | @retval EFI_UNSUPPORTED HID descriptor type is not report descriptor.\r | |
533 | @retval Other USB mouse device was not initialized successfully.\r | |
534 | \r | |
535 | **/\r | |
536 | EFI_STATUS\r | |
537 | InitializeUsbMouseDevice (\r | |
538 | IN OUT USB_MOUSE_DEV *UsbMouseDev\r | |
539 | )\r | |
540 | {\r | |
541 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
542 | UINT8 Protocol;\r | |
543 | EFI_STATUS Status;\r | |
544 | EFI_USB_HID_DESCRIPTOR *MouseHidDesc;\r | |
545 | UINT8 *ReportDesc;\r | |
546 | EFI_USB_CONFIG_DESCRIPTOR ConfigDesc;\r | |
547 | VOID *Buf;\r | |
548 | UINT32 TransferResult;\r | |
549 | UINT16 Total;\r | |
550 | USB_DESC_HEAD *Head;\r | |
551 | BOOLEAN Start;\r | |
552 | \r | |
553 | UsbIo = UsbMouseDev->UsbIo;\r | |
554 | \r | |
555 | //\r | |
556 | // Get the current configuration descriptor. Note that it doesn't include other descriptors.\r | |
557 | //\r | |
558 | Status = UsbIo->UsbGetConfigDescriptor (\r | |
559 | UsbIo,\r | |
560 | &ConfigDesc\r | |
561 | );\r | |
562 | if (EFI_ERROR (Status)) {\r | |
563 | return Status;\r | |
564 | }\r | |
565 | \r | |
566 | //\r | |
567 | // By issuing Get_Descriptor(Configuration) request with total length, we get the Configuration descriptor,\r | |
568 | // all Interface descriptors, all Endpoint descriptors, and the HID descriptor for each interface.\r | |
569 | //\r | |
570 | Buf = AllocateZeroPool (ConfigDesc.TotalLength);\r | |
571 | if (Buf == NULL) {\r | |
572 | return EFI_OUT_OF_RESOURCES;\r | |
573 | }\r | |
574 | \r | |
575 | Status = UsbGetDescriptor (\r | |
576 | UsbIo,\r | |
577 | (UINT16)((USB_DESC_TYPE_CONFIG << 8) | (ConfigDesc.ConfigurationValue - 1)),\r | |
578 | 0,\r | |
579 | ConfigDesc.TotalLength,\r | |
580 | Buf,\r | |
581 | &TransferResult\r | |
582 | );\r | |
583 | if (EFI_ERROR (Status)) {\r | |
584 | FreePool (Buf);\r | |
585 | return Status;\r | |
586 | }\r | |
587 | \r | |
588 | Total = 0;\r | |
589 | Start = FALSE;\r | |
590 | Head = (USB_DESC_HEAD *)Buf;\r | |
591 | MouseHidDesc = NULL;\r | |
592 | \r | |
593 | //\r | |
594 | // Get HID descriptor from the receipt of Get_Descriptor(Configuration) request.\r | |
595 | // This algorithm is based on the fact that the HID descriptor shall be interleaved\r | |
596 | // between the interface and endpoint descriptors for HID interfaces.\r | |
597 | //\r | |
598 | while (Total < ConfigDesc.TotalLength) {\r | |
599 | if (Head->Type == USB_DESC_TYPE_INTERFACE) {\r | |
600 | if ((((USB_INTERFACE_DESCRIPTOR *)Head)->InterfaceNumber == UsbMouseDev->InterfaceDescriptor.InterfaceNumber) &&\r | |
601 | (((USB_INTERFACE_DESCRIPTOR *)Head)->AlternateSetting == UsbMouseDev->InterfaceDescriptor.AlternateSetting))\r | |
602 | {\r | |
603 | Start = TRUE;\r | |
604 | }\r | |
605 | }\r | |
606 | \r | |
607 | if (Start && (Head->Type == USB_DESC_TYPE_ENDPOINT)) {\r | |
608 | break;\r | |
609 | }\r | |
610 | \r | |
611 | if (Start && (Head->Type == USB_DESC_TYPE_HID)) {\r | |
612 | MouseHidDesc = (EFI_USB_HID_DESCRIPTOR *)Head;\r | |
613 | break;\r | |
614 | }\r | |
615 | \r | |
616 | Total = Total + (UINT16)Head->Len;\r | |
617 | Head = (USB_DESC_HEAD *)((UINT8 *)Buf + Total);\r | |
618 | }\r | |
619 | \r | |
620 | if (MouseHidDesc == NULL) {\r | |
621 | FreePool (Buf);\r | |
622 | return EFI_UNSUPPORTED;\r | |
623 | }\r | |
624 | \r | |
625 | //\r | |
626 | // Get report descriptor\r | |
627 | //\r | |
628 | if (MouseHidDesc->HidClassDesc[0].DescriptorType != USB_DESC_TYPE_REPORT) {\r | |
629 | FreePool (Buf);\r | |
630 | return EFI_UNSUPPORTED;\r | |
631 | }\r | |
632 | \r | |
633 | ReportDesc = AllocateZeroPool (MouseHidDesc->HidClassDesc[0].DescriptorLength);\r | |
634 | ASSERT (ReportDesc != NULL);\r | |
635 | \r | |
636 | Status = UsbGetReportDescriptor (\r | |
637 | UsbIo,\r | |
638 | UsbMouseDev->InterfaceDescriptor.InterfaceNumber,\r | |
639 | MouseHidDesc->HidClassDesc[0].DescriptorLength,\r | |
640 | ReportDesc\r | |
641 | );\r | |
642 | \r | |
643 | if (EFI_ERROR (Status)) {\r | |
644 | FreePool (Buf);\r | |
645 | FreePool (ReportDesc);\r | |
646 | return Status;\r | |
647 | }\r | |
648 | \r | |
649 | //\r | |
650 | // Parse report descriptor\r | |
651 | //\r | |
652 | Status = ParseMouseReportDescriptor (\r | |
653 | UsbMouseDev,\r | |
654 | ReportDesc,\r | |
655 | MouseHidDesc->HidClassDesc[0].DescriptorLength\r | |
656 | );\r | |
657 | \r | |
658 | if (EFI_ERROR (Status)) {\r | |
659 | FreePool (Buf);\r | |
660 | FreePool (ReportDesc);\r | |
661 | return Status;\r | |
662 | }\r | |
663 | \r | |
664 | //\r | |
665 | // Check the presence of left and right buttons,\r | |
666 | // and initialize fields of EFI_SIMPLE_POINTER_MODE.\r | |
667 | //\r | |
668 | if (UsbMouseDev->NumberOfButtons >= 1) {\r | |
669 | UsbMouseDev->Mode.LeftButton = TRUE;\r | |
670 | }\r | |
671 | \r | |
672 | if (UsbMouseDev->NumberOfButtons > 1) {\r | |
673 | UsbMouseDev->Mode.RightButton = TRUE;\r | |
674 | }\r | |
675 | \r | |
676 | UsbMouseDev->Mode.ResolutionX = 8;\r | |
677 | UsbMouseDev->Mode.ResolutionY = 8;\r | |
678 | UsbMouseDev->Mode.ResolutionZ = 0;\r | |
679 | \r | |
680 | //\r | |
681 | // Set boot protocol for the USB mouse.\r | |
682 | // This driver only supports boot protocol.\r | |
683 | //\r | |
684 | UsbGetProtocolRequest (\r | |
685 | UsbIo,\r | |
686 | UsbMouseDev->InterfaceDescriptor.InterfaceNumber,\r | |
687 | &Protocol\r | |
688 | );\r | |
689 | if (Protocol != BOOT_PROTOCOL) {\r | |
690 | Status = UsbSetProtocolRequest (\r | |
691 | UsbIo,\r | |
692 | UsbMouseDev->InterfaceDescriptor.InterfaceNumber,\r | |
693 | BOOT_PROTOCOL\r | |
694 | );\r | |
695 | \r | |
696 | if (EFI_ERROR (Status)) {\r | |
697 | FreePool (Buf);\r | |
698 | FreePool (ReportDesc);\r | |
699 | return Status;\r | |
700 | }\r | |
701 | }\r | |
702 | \r | |
703 | FreePool (Buf);\r | |
704 | FreePool (ReportDesc);\r | |
705 | \r | |
706 | //\r | |
707 | // Create event for delayed recovery, which deals with device error.\r | |
708 | //\r | |
709 | if (UsbMouseDev->DelayedRecoveryEvent != NULL) {\r | |
710 | gBS->CloseEvent (UsbMouseDev->DelayedRecoveryEvent);\r | |
711 | UsbMouseDev->DelayedRecoveryEvent = 0;\r | |
712 | }\r | |
713 | \r | |
714 | gBS->CreateEvent (\r | |
715 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
716 | TPL_NOTIFY,\r | |
717 | USBMouseRecoveryHandler,\r | |
718 | UsbMouseDev,\r | |
719 | &UsbMouseDev->DelayedRecoveryEvent\r | |
720 | );\r | |
721 | \r | |
722 | return EFI_SUCCESS;\r | |
723 | }\r | |
724 | \r | |
725 | /**\r | |
726 | Handler function for USB mouse's asynchronous interrupt transfer.\r | |
727 | \r | |
728 | This function is the handler function for USB mouse's asynchronous interrupt transfer\r | |
729 | to manage the mouse. It parses data returned from asynchronous interrupt transfer, and\r | |
730 | get button and movement state.\r | |
731 | \r | |
732 | @param Data A pointer to a buffer that is filled with key data which is\r | |
733 | retrieved via asynchronous interrupt transfer.\r | |
734 | @param DataLength Indicates the size of the data buffer.\r | |
735 | @param Context Pointing to USB_KB_DEV instance.\r | |
736 | @param Result Indicates the result of the asynchronous interrupt transfer.\r | |
737 | \r | |
738 | @retval EFI_SUCCESS Asynchronous interrupt transfer is handled successfully.\r | |
739 | @retval EFI_DEVICE_ERROR Hardware error occurs.\r | |
740 | \r | |
741 | **/\r | |
742 | EFI_STATUS\r | |
743 | EFIAPI\r | |
744 | OnMouseInterruptComplete (\r | |
745 | IN VOID *Data,\r | |
746 | IN UINTN DataLength,\r | |
747 | IN VOID *Context,\r | |
748 | IN UINT32 Result\r | |
749 | )\r | |
750 | {\r | |
751 | USB_MOUSE_DEV *UsbMouseDevice;\r | |
752 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
753 | UINT8 EndpointAddr;\r | |
754 | UINT32 UsbResult;\r | |
755 | \r | |
756 | UsbMouseDevice = (USB_MOUSE_DEV *)Context;\r | |
757 | UsbIo = UsbMouseDevice->UsbIo;\r | |
758 | \r | |
759 | if (Result != EFI_USB_NOERROR) {\r | |
760 | //\r | |
761 | // Some errors happen during the process\r | |
762 | //\r | |
763 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
764 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
765 | (EFI_PERIPHERAL_MOUSE | EFI_P_EC_INPUT_ERROR),\r | |
766 | UsbMouseDevice->DevicePath\r | |
767 | );\r | |
768 | \r | |
769 | if ((Result & EFI_USB_ERR_STALL) == EFI_USB_ERR_STALL) {\r | |
770 | EndpointAddr = UsbMouseDevice->IntEndpointDescriptor.EndpointAddress;\r | |
771 | \r | |
772 | UsbClearEndpointHalt (\r | |
773 | UsbIo,\r | |
774 | EndpointAddr,\r | |
775 | &UsbResult\r | |
776 | );\r | |
777 | }\r | |
778 | \r | |
779 | //\r | |
780 | // Delete & Submit this interrupt again\r | |
781 | // Handler of DelayedRecoveryEvent triggered by timer will re-submit the interrupt.\r | |
782 | //\r | |
783 | UsbIo->UsbAsyncInterruptTransfer (\r | |
784 | UsbIo,\r | |
785 | UsbMouseDevice->IntEndpointDescriptor.EndpointAddress,\r | |
786 | FALSE,\r | |
787 | 0,\r | |
788 | 0,\r | |
789 | NULL,\r | |
790 | NULL\r | |
791 | );\r | |
792 | //\r | |
793 | // EFI_USB_INTERRUPT_DELAY is defined in USB standard for error handling.\r | |
794 | //\r | |
795 | gBS->SetTimer (\r | |
796 | UsbMouseDevice->DelayedRecoveryEvent,\r | |
797 | TimerRelative,\r | |
798 | EFI_USB_INTERRUPT_DELAY\r | |
799 | );\r | |
800 | return EFI_DEVICE_ERROR;\r | |
801 | }\r | |
802 | \r | |
803 | //\r | |
804 | // If no error and no data, just return EFI_SUCCESS.\r | |
805 | //\r | |
806 | if ((DataLength == 0) || (Data == NULL)) {\r | |
807 | return EFI_SUCCESS;\r | |
808 | }\r | |
809 | \r | |
810 | //\r | |
811 | // Check mouse Data\r | |
812 | // USB HID Specification specifies following data format:\r | |
813 | // Byte Bits Description\r | |
814 | // 0 0 Button 1\r | |
815 | // 1 Button 2\r | |
816 | // 2 Button 3\r | |
817 | // 4 to 7 Device-specific\r | |
818 | // 1 0 to 7 X displacement\r | |
819 | // 2 0 to 7 Y displacement\r | |
820 | // 3 to n 0 to 7 Device specific (optional)\r | |
821 | //\r | |
822 | if (DataLength < 3) {\r | |
823 | return EFI_DEVICE_ERROR;\r | |
824 | }\r | |
825 | \r | |
826 | UsbMouseDevice->StateChanged = TRUE;\r | |
827 | \r | |
828 | UsbMouseDevice->State.LeftButton = (BOOLEAN)((*(UINT8 *)Data & BIT0) != 0);\r | |
829 | UsbMouseDevice->State.RightButton = (BOOLEAN)((*(UINT8 *)Data & BIT1) != 0);\r | |
830 | UsbMouseDevice->State.RelativeMovementX += *((INT8 *)Data + 1);\r | |
831 | UsbMouseDevice->State.RelativeMovementY += *((INT8 *)Data + 2);\r | |
832 | \r | |
833 | if (DataLength > 3) {\r | |
834 | UsbMouseDevice->State.RelativeMovementZ += *((INT8 *)Data + 3);\r | |
835 | }\r | |
836 | \r | |
837 | return EFI_SUCCESS;\r | |
838 | }\r | |
839 | \r | |
840 | /**\r | |
841 | Retrieves the current state of a pointer device.\r | |
842 | \r | |
843 | @param This A pointer to the EFI_SIMPLE_POINTER_PROTOCOL instance.\r | |
844 | @param MouseState A pointer to the state information on the pointer device.\r | |
845 | \r | |
846 | @retval EFI_SUCCESS The state of the pointer device was returned in State.\r | |
847 | @retval EFI_NOT_READY The state of the pointer device has not changed since the last call to\r | |
848 | GetState().\r | |
849 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to retrieve the pointer device's\r | |
850 | current state.\r | |
851 | @retval EFI_INVALID_PARAMETER MouseState is NULL.\r | |
852 | \r | |
853 | **/\r | |
854 | EFI_STATUS\r | |
855 | EFIAPI\r | |
856 | GetMouseState (\r | |
857 | IN EFI_SIMPLE_POINTER_PROTOCOL *This,\r | |
858 | OUT EFI_SIMPLE_POINTER_STATE *MouseState\r | |
859 | )\r | |
860 | {\r | |
861 | USB_MOUSE_DEV *MouseDev;\r | |
862 | \r | |
863 | if (MouseState == NULL) {\r | |
864 | return EFI_INVALID_PARAMETER;\r | |
865 | }\r | |
866 | \r | |
867 | MouseDev = USB_MOUSE_DEV_FROM_MOUSE_PROTOCOL (This);\r | |
868 | \r | |
869 | if (!MouseDev->StateChanged) {\r | |
870 | return EFI_NOT_READY;\r | |
871 | }\r | |
872 | \r | |
873 | //\r | |
874 | // Retrieve mouse state from USB_MOUSE_DEV, which was filled by OnMouseInterruptComplete()\r | |
875 | //\r | |
876 | CopyMem (\r | |
877 | MouseState,\r | |
878 | &MouseDev->State,\r | |
879 | sizeof (EFI_SIMPLE_POINTER_STATE)\r | |
880 | );\r | |
881 | \r | |
882 | //\r | |
883 | // Clear previous move state\r | |
884 | //\r | |
885 | MouseDev->State.RelativeMovementX = 0;\r | |
886 | MouseDev->State.RelativeMovementY = 0;\r | |
887 | MouseDev->State.RelativeMovementZ = 0;\r | |
888 | \r | |
889 | MouseDev->StateChanged = FALSE;\r | |
890 | \r | |
891 | return EFI_SUCCESS;\r | |
892 | }\r | |
893 | \r | |
894 | /**\r | |
895 | Resets the pointer device hardware.\r | |
896 | \r | |
897 | @param This A pointer to the EFI_SIMPLE_POINTER_PROTOCOL instance.\r | |
898 | @param ExtendedVerification Indicates that the driver may perform a more exhaustive\r | |
899 | verification operation of the device during reset.\r | |
900 | \r | |
901 | @retval EFI_SUCCESS The device was reset.\r | |
902 | @retval EFI_DEVICE_ERROR The device is not functioning correctly and could not be reset.\r | |
903 | \r | |
904 | **/\r | |
905 | EFI_STATUS\r | |
906 | EFIAPI\r | |
907 | UsbMouseReset (\r | |
908 | IN EFI_SIMPLE_POINTER_PROTOCOL *This,\r | |
909 | IN BOOLEAN ExtendedVerification\r | |
910 | )\r | |
911 | {\r | |
912 | USB_MOUSE_DEV *UsbMouseDevice;\r | |
913 | \r | |
914 | UsbMouseDevice = USB_MOUSE_DEV_FROM_MOUSE_PROTOCOL (This);\r | |
915 | \r | |
916 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
917 | EFI_PROGRESS_CODE,\r | |
918 | (EFI_PERIPHERAL_MOUSE | EFI_P_PC_RESET),\r | |
919 | UsbMouseDevice->DevicePath\r | |
920 | );\r | |
921 | \r | |
922 | //\r | |
923 | // Clear mouse state.\r | |
924 | //\r | |
925 | ZeroMem (\r | |
926 | &UsbMouseDevice->State,\r | |
927 | sizeof (EFI_SIMPLE_POINTER_STATE)\r | |
928 | );\r | |
929 | UsbMouseDevice->StateChanged = FALSE;\r | |
930 | \r | |
931 | return EFI_SUCCESS;\r | |
932 | }\r | |
933 | \r | |
934 | /**\r | |
935 | Event notification function for EFI_SIMPLE_POINTER_PROTOCOL.WaitForInput event.\r | |
936 | \r | |
937 | @param Event Event to be signaled when there's input from mouse.\r | |
938 | @param Context Points to USB_MOUSE_DEV instance.\r | |
939 | \r | |
940 | **/\r | |
941 | VOID\r | |
942 | EFIAPI\r | |
943 | UsbMouseWaitForInput (\r | |
944 | IN EFI_EVENT Event,\r | |
945 | IN VOID *Context\r | |
946 | )\r | |
947 | {\r | |
948 | USB_MOUSE_DEV *UsbMouseDev;\r | |
949 | \r | |
950 | UsbMouseDev = (USB_MOUSE_DEV *)Context;\r | |
951 | \r | |
952 | //\r | |
953 | // If there's input from mouse, signal the event.\r | |
954 | //\r | |
955 | if (UsbMouseDev->StateChanged) {\r | |
956 | gBS->SignalEvent (Event);\r | |
957 | }\r | |
958 | }\r | |
959 | \r | |
960 | /**\r | |
961 | Handler for Delayed Recovery event.\r | |
962 | \r | |
963 | This function is the handler for Delayed Recovery event triggered\r | |
964 | by timer.\r | |
965 | After a device error occurs, the event would be triggered\r | |
966 | with interval of EFI_USB_INTERRUPT_DELAY. EFI_USB_INTERRUPT_DELAY\r | |
967 | is defined in USB standard for error handling.\r | |
968 | \r | |
969 | @param Event The Delayed Recovery event.\r | |
970 | @param Context Points to the USB_MOUSE_DEV instance.\r | |
971 | \r | |
972 | **/\r | |
973 | VOID\r | |
974 | EFIAPI\r | |
975 | USBMouseRecoveryHandler (\r | |
976 | IN EFI_EVENT Event,\r | |
977 | IN VOID *Context\r | |
978 | )\r | |
979 | {\r | |
980 | USB_MOUSE_DEV *UsbMouseDev;\r | |
981 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
982 | \r | |
983 | UsbMouseDev = (USB_MOUSE_DEV *)Context;\r | |
984 | \r | |
985 | UsbIo = UsbMouseDev->UsbIo;\r | |
986 | \r | |
987 | //\r | |
988 | // Re-submit Asynchronous Interrupt Transfer for recovery.\r | |
989 | //\r | |
990 | UsbIo->UsbAsyncInterruptTransfer (\r | |
991 | UsbIo,\r | |
992 | UsbMouseDev->IntEndpointDescriptor.EndpointAddress,\r | |
993 | TRUE,\r | |
994 | UsbMouseDev->IntEndpointDescriptor.Interval,\r | |
995 | UsbMouseDev->IntEndpointDescriptor.MaxPacketSize,\r | |
996 | OnMouseInterruptComplete,\r | |
997 | UsbMouseDev\r | |
998 | );\r | |
999 | }\r |