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e237e7ae | 1 | /** @file\r |
2 | \r | |
8616fc4c | 3 | Usb Bus Driver Binding and Bus IO Protocol.\r |
4 | \r | |
3d0a2385 | 5 | Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>\r |
cd5ebaa0 | 6 | This program and the accompanying materials\r |
e237e7ae | 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 | |
e237e7ae | 14 | **/\r |
15 | \r | |
16 | #include "UsbBus.h"\r | |
17 | \r | |
18 | //\r | |
19 | // USB_BUS_PROTOCOL is only used to locate USB_BUS\r | |
20 | //\r | |
21 | EFI_GUID mUsbBusProtocolGuid = EFI_USB_BUS_PROTOCOL_GUID;\r | |
22 | \r | |
aa79b0b3 | 23 | EFI_USB_IO_PROTOCOL mUsbIoProtocol = {\r |
24 | UsbIoControlTransfer,\r | |
25 | UsbIoBulkTransfer,\r | |
26 | UsbIoAsyncInterruptTransfer,\r | |
27 | UsbIoSyncInterruptTransfer,\r | |
28 | UsbIoIsochronousTransfer,\r | |
29 | UsbIoAsyncIsochronousTransfer,\r | |
30 | UsbIoGetDeviceDescriptor,\r | |
31 | UsbIoGetActiveConfigDescriptor,\r | |
32 | UsbIoGetInterfaceDescriptor,\r | |
33 | UsbIoGetEndpointDescriptor,\r | |
34 | UsbIoGetStringDescriptor,\r | |
35 | UsbIoGetSupportedLanguages,\r | |
36 | UsbIoPortReset\r | |
37 | };\r | |
38 | \r | |
39 | EFI_DRIVER_BINDING_PROTOCOL mUsbBusDriverBinding = {\r | |
40 | UsbBusControllerDriverSupported,\r | |
41 | UsbBusControllerDriverStart,\r | |
42 | UsbBusControllerDriverStop,\r | |
43 | 0xa,\r | |
44 | NULL,\r | |
45 | NULL\r | |
46 | };\r | |
47 | \r | |
92870c98 | 48 | UINT16 mMaxUsbDeviceNum = USB_MAX_DEVICES;\r |
e237e7ae | 49 | \r |
50 | /**\r | |
51 | USB_IO function to execute a control transfer. This\r | |
52 | function will execute the USB transfer. If transfer\r | |
53 | successes, it will sync the internal state of USB bus\r | |
54 | with device state.\r | |
55 | \r | |
56 | @param This The USB_IO instance\r | |
57 | @param Request The control transfer request\r | |
58 | @param Direction Direction for data stage\r | |
59 | @param Timeout The time to wait before timeout\r | |
60 | @param Data The buffer holding the data\r | |
61 | @param DataLength Then length of the data\r | |
62 | @param UsbStatus USB result\r | |
63 | \r | |
64 | @retval EFI_INVALID_PARAMETER The parameters are invalid\r | |
d17371e8 | 65 | @retval EFI_SUCCESS The control transfer succeeded.\r |
e237e7ae | 66 | @retval Others Failed to execute the transfer\r |
67 | \r | |
68 | **/\r | |
e237e7ae | 69 | EFI_STATUS\r |
70 | EFIAPI\r | |
71 | UsbIoControlTransfer (\r | |
72 | IN EFI_USB_IO_PROTOCOL *This,\r | |
73 | IN EFI_USB_DEVICE_REQUEST *Request,\r | |
74 | IN EFI_USB_DATA_DIRECTION Direction,\r | |
75 | IN UINT32 Timeout,\r | |
76 | IN OUT VOID *Data, OPTIONAL\r | |
77 | IN UINTN DataLength, OPTIONAL\r | |
78 | OUT UINT32 *UsbStatus\r | |
79 | )\r | |
80 | {\r | |
81 | USB_DEVICE *Dev;\r | |
82 | USB_INTERFACE *UsbIf;\r | |
83 | USB_ENDPOINT_DESC *EpDesc;\r | |
84 | EFI_TPL OldTpl;\r | |
85 | EFI_STATUS Status;\r | |
86 | \r | |
87 | if (UsbStatus == NULL) {\r | |
88 | return EFI_INVALID_PARAMETER;\r | |
89 | }\r | |
90 | \r | |
91 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
92 | \r | |
93 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
94 | Dev = UsbIf->Device;\r | |
95 | \r | |
96 | Status = UsbHcControlTransfer (\r | |
97 | Dev->Bus,\r | |
98 | Dev->Address,\r | |
99 | Dev->Speed,\r | |
100 | Dev->MaxPacket0,\r | |
101 | Request,\r | |
102 | Direction,\r | |
103 | Data,\r | |
104 | &DataLength,\r | |
105 | (UINTN) Timeout,\r | |
106 | &Dev->Translator,\r | |
107 | UsbStatus\r | |
108 | );\r | |
109 | \r | |
110 | if (EFI_ERROR (Status) || (*UsbStatus != EFI_USB_NOERROR)) {\r | |
111 | //\r | |
112 | // Clear TT buffer when CTRL/BULK split transaction failes\r | |
113 | // Clear the TRANSLATOR TT buffer, not parent's buffer\r | |
114 | //\r | |
92870c98 | 115 | ASSERT (Dev->Translator.TranslatorHubAddress < mMaxUsbDeviceNum);\r |
e237e7ae | 116 | if (Dev->Translator.TranslatorHubAddress != 0) {\r |
117 | UsbHubCtrlClearTTBuffer (\r | |
118 | Dev->Bus->Devices[Dev->Translator.TranslatorHubAddress],\r | |
119 | Dev->Translator.TranslatorPortNumber,\r | |
120 | Dev->Address,\r | |
121 | 0,\r | |
122 | USB_ENDPOINT_CONTROL\r | |
123 | );\r | |
124 | }\r | |
125 | \r | |
126 | goto ON_EXIT;\r | |
127 | }\r | |
128 | \r | |
129 | //\r | |
130 | // Some control transfer will change the device's internal\r | |
131 | // status, such as Set_Configuration and Set_Interface.\r | |
132 | // We must synchronize the bus driver's status with that in\r | |
133 | // device. We ignore the Set_Descriptor request because it's\r | |
134 | // hardly used by any device, especially in pre-boot environment\r | |
135 | //\r | |
136 | \r | |
137 | //\r | |
138 | // Reset the endpoint toggle when endpoint stall is cleared\r | |
139 | //\r | |
140 | if ((Request->Request == USB_REQ_CLEAR_FEATURE) &&\r | |
141 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
142 | USB_TARGET_ENDPOINT)) &&\r | |
143 | (Request->Value == USB_FEATURE_ENDPOINT_HALT)) {\r | |
144 | \r | |
145 | EpDesc = UsbGetEndpointDesc (UsbIf, (UINT8) Request->Index);\r | |
146 | \r | |
147 | if (EpDesc != NULL) {\r | |
148 | EpDesc->Toggle = 0;\r | |
149 | }\r | |
150 | }\r | |
151 | \r | |
152 | //\r | |
153 | // Select a new configuration. This is a dangerous action. Upper driver\r | |
154 | // should stop use its current UsbIo after calling this driver. The old\r | |
155 | // UsbIo will be uninstalled and new UsbIo be installed. We can't use\r | |
156 | // ReinstallProtocol since interfaces in different configuration may be\r | |
d17371e8 | 157 | // completely irrelevant.\r |
e237e7ae | 158 | //\r |
159 | if ((Request->Request == USB_REQ_SET_CONFIG) &&\r | |
160 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
161 | USB_TARGET_DEVICE))) {\r | |
162 | //\r | |
163 | // Don't re-create the USB interfaces if configuration isn't changed.\r | |
164 | //\r | |
165 | if ((Dev->ActiveConfig != NULL) &&\r | |
166 | (Request->Value == Dev->ActiveConfig->Desc.ConfigurationValue)) {\r | |
167 | \r | |
168 | goto ON_EXIT;\r | |
169 | }\r | |
d2577026 | 170 | DEBUG ((EFI_D_INFO, "UsbIoControlTransfer: configure changed!!! Do NOT use old UsbIo!!!\n"));\r |
e237e7ae | 171 | \r |
172 | if (Dev->ActiveConfig != NULL) {\r | |
173 | UsbRemoveConfig (Dev);\r | |
174 | }\r | |
175 | \r | |
176 | if (Request->Value != 0) {\r | |
177 | Status = UsbSelectConfig (Dev, (UINT8) Request->Value);\r | |
178 | }\r | |
179 | \r | |
180 | //\r | |
181 | // Exit now, Old USB_IO is invalid now\r | |
182 | //\r | |
183 | goto ON_EXIT;\r | |
184 | }\r | |
185 | \r | |
186 | //\r | |
187 | // A new alternative setting is selected for the interface.\r | |
188 | // No need to reinstall UsbIo in this case because only\r | |
189 | // underlying communication endpoints are changed. Functionality\r | |
190 | // should remains the same.\r | |
191 | //\r | |
192 | if ((Request->Request == USB_REQ_SET_INTERFACE) &&\r | |
193 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
194 | USB_TARGET_INTERFACE)) &&\r | |
195 | (Request->Index == UsbIf->IfSetting->Desc.InterfaceNumber)) {\r | |
196 | \r | |
197 | Status = UsbSelectSetting (UsbIf->IfDesc, (UINT8) Request->Value);\r | |
198 | \r | |
199 | if (!EFI_ERROR (Status)) {\r | |
a1b749d0 | 200 | ASSERT (UsbIf->IfDesc->ActiveIndex < USB_MAX_INTERFACE_SETTING);\r |
e237e7ae | 201 | UsbIf->IfSetting = UsbIf->IfDesc->Settings[UsbIf->IfDesc->ActiveIndex];\r |
202 | }\r | |
203 | }\r | |
204 | \r | |
205 | ON_EXIT:\r | |
206 | gBS->RestoreTPL (OldTpl);\r | |
207 | return Status;\r | |
208 | }\r | |
209 | \r | |
210 | \r | |
211 | /**\r | |
8616fc4c | 212 | Execute a bulk transfer to the device endpoint.\r |
e237e7ae | 213 | \r |
8616fc4c | 214 | @param This The USB IO instance.\r |
215 | @param Endpoint The device endpoint.\r | |
216 | @param Data The data to transfer.\r | |
217 | @param DataLength The length of the data to transfer.\r | |
218 | @param Timeout Time to wait before timeout.\r | |
219 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 220 | \r |
8616fc4c | 221 | @retval EFI_SUCCESS The bulk transfer is OK.\r |
222 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 223 | @retval Others Failed to execute transfer, reason returned in\r |
8616fc4c | 224 | UsbStatus.\r |
e237e7ae | 225 | \r |
226 | **/\r | |
e237e7ae | 227 | EFI_STATUS\r |
228 | EFIAPI\r | |
229 | UsbIoBulkTransfer (\r | |
230 | IN EFI_USB_IO_PROTOCOL *This,\r | |
231 | IN UINT8 Endpoint,\r | |
232 | IN OUT VOID *Data,\r | |
233 | IN OUT UINTN *DataLength,\r | |
234 | IN UINTN Timeout,\r | |
235 | OUT UINT32 *UsbStatus\r | |
236 | )\r | |
237 | {\r | |
238 | USB_DEVICE *Dev;\r | |
239 | USB_INTERFACE *UsbIf;\r | |
240 | USB_ENDPOINT_DESC *EpDesc;\r | |
241 | UINT8 BufNum;\r | |
242 | UINT8 Toggle;\r | |
243 | EFI_TPL OldTpl;\r | |
244 | EFI_STATUS Status;\r | |
245 | \r | |
246 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR(Endpoint) > 15) ||\r | |
247 | (UsbStatus == NULL)) {\r | |
248 | \r | |
249 | return EFI_INVALID_PARAMETER;\r | |
250 | }\r | |
251 | \r | |
252 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
253 | \r | |
254 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
255 | Dev = UsbIf->Device;\r | |
256 | \r | |
257 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
258 | \r | |
259 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_BULK)) {\r | |
260 | Status = EFI_INVALID_PARAMETER;\r | |
261 | goto ON_EXIT;\r | |
262 | }\r | |
263 | \r | |
264 | BufNum = 1;\r | |
265 | Toggle = EpDesc->Toggle;\r | |
266 | Status = UsbHcBulkTransfer (\r | |
267 | Dev->Bus,\r | |
268 | Dev->Address,\r | |
269 | Endpoint,\r | |
270 | Dev->Speed,\r | |
271 | EpDesc->Desc.MaxPacketSize,\r | |
272 | BufNum,\r | |
273 | &Data,\r | |
274 | DataLength,\r | |
275 | &Toggle,\r | |
276 | Timeout,\r | |
277 | &Dev->Translator,\r | |
278 | UsbStatus\r | |
279 | );\r | |
280 | \r | |
281 | EpDesc->Toggle = Toggle;\r | |
282 | \r | |
283 | if (EFI_ERROR (Status) || (*UsbStatus != EFI_USB_NOERROR)) {\r | |
284 | //\r | |
285 | // Clear TT buffer when CTRL/BULK split transaction failes.\r | |
286 | // Clear the TRANSLATOR TT buffer, not parent's buffer\r | |
287 | //\r | |
92870c98 | 288 | ASSERT (Dev->Translator.TranslatorHubAddress < mMaxUsbDeviceNum);\r |
e237e7ae | 289 | if (Dev->Translator.TranslatorHubAddress != 0) {\r |
290 | UsbHubCtrlClearTTBuffer (\r | |
291 | Dev->Bus->Devices[Dev->Translator.TranslatorHubAddress],\r | |
292 | Dev->Translator.TranslatorPortNumber,\r | |
293 | Dev->Address,\r | |
294 | 0,\r | |
295 | USB_ENDPOINT_BULK\r | |
296 | );\r | |
297 | }\r | |
298 | }\r | |
299 | \r | |
300 | ON_EXIT:\r | |
301 | gBS->RestoreTPL (OldTpl);\r | |
302 | return Status;\r | |
303 | }\r | |
304 | \r | |
305 | \r | |
306 | /**\r | |
8616fc4c | 307 | Execute a synchronous interrupt transfer.\r |
e237e7ae | 308 | \r |
8616fc4c | 309 | @param This The USB IO instance.\r |
310 | @param Endpoint The device endpoint.\r | |
311 | @param Data The data to transfer.\r | |
312 | @param DataLength The length of the data to transfer.\r | |
313 | @param Timeout Time to wait before timeout.\r | |
314 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 315 | \r |
8616fc4c | 316 | @retval EFI_SUCCESS The synchronous interrupt transfer is OK.\r |
317 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 318 | @retval Others Failed to execute transfer, reason returned in\r |
8616fc4c | 319 | UsbStatus.\r |
e237e7ae | 320 | \r |
321 | **/\r | |
e237e7ae | 322 | EFI_STATUS\r |
323 | EFIAPI\r | |
324 | UsbIoSyncInterruptTransfer (\r | |
325 | IN EFI_USB_IO_PROTOCOL *This,\r | |
326 | IN UINT8 Endpoint,\r | |
327 | IN OUT VOID *Data,\r | |
328 | IN OUT UINTN *DataLength,\r | |
329 | IN UINTN Timeout,\r | |
330 | OUT UINT32 *UsbStatus\r | |
331 | )\r | |
332 | {\r | |
333 | USB_DEVICE *Dev;\r | |
334 | USB_INTERFACE *UsbIf;\r | |
335 | USB_ENDPOINT_DESC *EpDesc;\r | |
336 | EFI_TPL OldTpl;\r | |
337 | UINT8 Toggle;\r | |
338 | EFI_STATUS Status;\r | |
339 | \r | |
340 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR(Endpoint) > 15) ||\r | |
341 | (UsbStatus == NULL)) {\r | |
342 | \r | |
343 | return EFI_INVALID_PARAMETER;\r | |
344 | }\r | |
345 | \r | |
346 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
347 | \r | |
348 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
349 | Dev = UsbIf->Device;\r | |
350 | \r | |
351 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
352 | \r | |
353 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_INTERRUPT)) {\r | |
354 | Status = EFI_INVALID_PARAMETER;\r | |
355 | goto ON_EXIT;\r | |
356 | }\r | |
357 | \r | |
358 | Toggle = EpDesc->Toggle;\r | |
359 | Status = UsbHcSyncInterruptTransfer (\r | |
360 | Dev->Bus,\r | |
361 | Dev->Address,\r | |
362 | Endpoint,\r | |
363 | Dev->Speed,\r | |
364 | EpDesc->Desc.MaxPacketSize,\r | |
365 | Data,\r | |
366 | DataLength,\r | |
367 | &Toggle,\r | |
368 | Timeout,\r | |
369 | &Dev->Translator,\r | |
370 | UsbStatus\r | |
371 | );\r | |
372 | \r | |
373 | EpDesc->Toggle = Toggle;\r | |
374 | \r | |
375 | ON_EXIT:\r | |
376 | gBS->RestoreTPL (OldTpl);\r | |
377 | return Status;\r | |
378 | }\r | |
379 | \r | |
380 | \r | |
381 | /**\r | |
382 | Queue a new asynchronous interrupt transfer, or remove the old\r | |
8616fc4c | 383 | request if (IsNewTransfer == FALSE).\r |
e237e7ae | 384 | \r |
8616fc4c | 385 | @param This The USB_IO instance.\r |
386 | @param Endpoint The device endpoint.\r | |
e237e7ae | 387 | @param IsNewTransfer Whether this is a new request, if it's old, remove\r |
8616fc4c | 388 | the request.\r |
389 | @param PollInterval The interval to poll the transfer result, (in ms).\r | |
390 | @param DataLength The length of perodic data transfer.\r | |
e237e7ae | 391 | @param Callback The function to call periodicaly when transfer is\r |
8616fc4c | 392 | ready.\r |
393 | @param Context The context to the callback.\r | |
e237e7ae | 394 | \r |
8616fc4c | 395 | @retval EFI_SUCCESS New transfer is queued or old request is removed.\r |
396 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 397 | @retval Others Failed to queue the new request or remove the old\r |
8616fc4c | 398 | request.\r |
e237e7ae | 399 | \r |
400 | **/\r | |
e237e7ae | 401 | EFI_STATUS\r |
402 | EFIAPI\r | |
403 | UsbIoAsyncInterruptTransfer (\r | |
404 | IN EFI_USB_IO_PROTOCOL *This,\r | |
405 | IN UINT8 Endpoint,\r | |
406 | IN BOOLEAN IsNewTransfer,\r | |
407 | IN UINTN PollInterval, OPTIONAL\r | |
408 | IN UINTN DataLength, OPTIONAL\r | |
409 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback, OPTIONAL\r | |
410 | IN VOID *Context OPTIONAL\r | |
411 | )\r | |
412 | {\r | |
413 | USB_DEVICE *Dev;\r | |
414 | USB_INTERFACE *UsbIf;\r | |
415 | USB_ENDPOINT_DESC *EpDesc;\r | |
416 | EFI_TPL OldTpl;\r | |
417 | UINT8 Toggle;\r | |
418 | EFI_STATUS Status;\r | |
419 | \r | |
420 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR (Endpoint) > 15)) {\r | |
421 | return EFI_INVALID_PARAMETER;\r | |
422 | }\r | |
423 | \r | |
424 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
425 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
426 | Dev = UsbIf->Device;\r | |
427 | \r | |
428 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
429 | \r | |
430 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_INTERRUPT)) {\r | |
431 | Status = EFI_INVALID_PARAMETER;\r | |
432 | goto ON_EXIT;\r | |
433 | }\r | |
434 | \r | |
435 | Toggle = EpDesc->Toggle;\r | |
436 | Status = UsbHcAsyncInterruptTransfer (\r | |
437 | Dev->Bus,\r | |
438 | Dev->Address,\r | |
439 | Endpoint,\r | |
440 | Dev->Speed,\r | |
441 | EpDesc->Desc.MaxPacketSize,\r | |
442 | IsNewTransfer,\r | |
443 | &Toggle,\r | |
444 | PollInterval,\r | |
445 | DataLength,\r | |
446 | &Dev->Translator,\r | |
447 | Callback,\r | |
448 | Context\r | |
449 | );\r | |
450 | \r | |
451 | EpDesc->Toggle = Toggle;\r | |
452 | \r | |
453 | ON_EXIT:\r | |
454 | gBS->RestoreTPL (OldTpl);\r | |
455 | return Status;\r | |
456 | }\r | |
457 | \r | |
458 | \r | |
459 | /**\r | |
8616fc4c | 460 | Execute a synchronous isochronous transfer.\r |
e237e7ae | 461 | \r |
8616fc4c | 462 | @param This The USB IO instance.\r |
463 | @param DeviceEndpoint The device endpoint.\r | |
464 | @param Data The data to transfer.\r | |
465 | @param DataLength The length of the data to transfer.\r | |
466 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 467 | \r |
8616fc4c | 468 | @retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.\r |
e237e7ae | 469 | \r |
470 | **/\r | |
e237e7ae | 471 | EFI_STATUS\r |
472 | EFIAPI\r | |
473 | UsbIoIsochronousTransfer (\r | |
474 | IN EFI_USB_IO_PROTOCOL *This,\r | |
475 | IN UINT8 DeviceEndpoint,\r | |
476 | IN OUT VOID *Data,\r | |
477 | IN UINTN DataLength,\r | |
478 | OUT UINT32 *Status\r | |
479 | )\r | |
480 | {\r | |
481 | return EFI_UNSUPPORTED;\r | |
482 | }\r | |
483 | \r | |
484 | \r | |
485 | /**\r | |
8616fc4c | 486 | Queue an asynchronous isochronous transfer.\r |
e237e7ae | 487 | \r |
8616fc4c | 488 | @param This The USB_IO instance.\r |
489 | @param DeviceEndpoint The device endpoint.\r | |
490 | @param Data The data to transfer.\r | |
491 | @param DataLength The length of perodic data transfer.\r | |
e237e7ae | 492 | @param IsochronousCallBack The function to call periodicaly when transfer is\r |
8616fc4c | 493 | ready.\r |
494 | @param Context The context to the callback.\r | |
e237e7ae | 495 | \r |
8616fc4c | 496 | @retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.\r |
e237e7ae | 497 | \r |
498 | **/\r | |
e237e7ae | 499 | EFI_STATUS\r |
500 | EFIAPI\r | |
501 | UsbIoAsyncIsochronousTransfer (\r | |
502 | IN EFI_USB_IO_PROTOCOL *This,\r | |
503 | IN UINT8 DeviceEndpoint,\r | |
504 | IN OUT VOID *Data,\r | |
505 | IN UINTN DataLength,\r | |
506 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,\r | |
507 | IN VOID *Context OPTIONAL\r | |
508 | )\r | |
509 | {\r | |
510 | return EFI_UNSUPPORTED;\r | |
511 | }\r | |
512 | \r | |
513 | \r | |
514 | /**\r | |
8616fc4c | 515 | Retrieve the device descriptor of the device.\r |
e237e7ae | 516 | \r |
8616fc4c | 517 | @param This The USB IO instance.\r |
518 | @param Descriptor The variable to receive the device descriptor.\r | |
e237e7ae | 519 | \r |
8616fc4c | 520 | @retval EFI_SUCCESS The device descriptor is returned.\r |
521 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
e237e7ae | 522 | \r |
523 | **/\r | |
e237e7ae | 524 | EFI_STATUS\r |
525 | EFIAPI\r | |
526 | UsbIoGetDeviceDescriptor (\r | |
527 | IN EFI_USB_IO_PROTOCOL *This,\r | |
528 | OUT EFI_USB_DEVICE_DESCRIPTOR *Descriptor\r | |
529 | )\r | |
530 | {\r | |
531 | USB_DEVICE *Dev;\r | |
532 | USB_INTERFACE *UsbIf;\r | |
533 | EFI_TPL OldTpl;\r | |
534 | \r | |
535 | if (Descriptor == NULL) {\r | |
536 | return EFI_INVALID_PARAMETER;\r | |
537 | }\r | |
538 | \r | |
539 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
540 | \r | |
541 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
542 | Dev = UsbIf->Device;\r | |
543 | \r | |
544 | CopyMem (Descriptor, &Dev->DevDesc->Desc, sizeof (EFI_USB_DEVICE_DESCRIPTOR));\r | |
545 | \r | |
546 | gBS->RestoreTPL (OldTpl);\r | |
547 | return EFI_SUCCESS;\r | |
548 | }\r | |
549 | \r | |
550 | \r | |
551 | /**\r | |
8616fc4c | 552 | Return the configuration descriptor of the current active configuration.\r |
e237e7ae | 553 | \r |
8616fc4c | 554 | @param This The USB IO instance.\r |
555 | @param Descriptor The USB configuration descriptor.\r | |
e237e7ae | 556 | \r |
8616fc4c | 557 | @retval EFI_SUCCESS The active configuration descriptor is returned.\r |
558 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 559 | @retval EFI_NOT_FOUND Currently no active configuration is selected.\r |
560 | \r | |
561 | **/\r | |
e237e7ae | 562 | EFI_STATUS\r |
563 | EFIAPI\r | |
564 | UsbIoGetActiveConfigDescriptor (\r | |
565 | IN EFI_USB_IO_PROTOCOL *This,\r | |
566 | OUT EFI_USB_CONFIG_DESCRIPTOR *Descriptor\r | |
567 | )\r | |
568 | {\r | |
569 | USB_DEVICE *Dev;\r | |
570 | USB_INTERFACE *UsbIf;\r | |
571 | EFI_STATUS Status;\r | |
572 | EFI_TPL OldTpl;\r | |
573 | \r | |
574 | if (Descriptor == NULL) {\r | |
575 | return EFI_INVALID_PARAMETER;\r | |
576 | }\r | |
577 | \r | |
578 | Status = EFI_SUCCESS;\r | |
579 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
580 | \r | |
581 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
582 | Dev = UsbIf->Device;\r | |
583 | \r | |
584 | if (Dev->ActiveConfig == NULL) {\r | |
585 | Status = EFI_NOT_FOUND;\r | |
586 | goto ON_EXIT;\r | |
587 | }\r | |
588 | \r | |
589 | CopyMem (Descriptor, &(Dev->ActiveConfig->Desc), sizeof (EFI_USB_CONFIG_DESCRIPTOR));\r | |
590 | \r | |
591 | ON_EXIT:\r | |
592 | gBS->RestoreTPL (OldTpl);\r | |
593 | return Status;\r | |
594 | }\r | |
595 | \r | |
596 | \r | |
597 | /**\r | |
8616fc4c | 598 | Retrieve the active interface setting descriptor for this USB IO instance.\r |
e237e7ae | 599 | \r |
8616fc4c | 600 | @param This The USB IO instance.\r |
601 | @param Descriptor The variable to receive active interface setting.\r | |
e237e7ae | 602 | \r |
8616fc4c | 603 | @retval EFI_SUCCESS The active interface setting is returned.\r |
604 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 605 | \r |
606 | **/\r | |
e237e7ae | 607 | EFI_STATUS\r |
608 | EFIAPI\r | |
609 | UsbIoGetInterfaceDescriptor (\r | |
610 | IN EFI_USB_IO_PROTOCOL *This,\r | |
611 | OUT EFI_USB_INTERFACE_DESCRIPTOR *Descriptor\r | |
612 | )\r | |
613 | {\r | |
614 | USB_INTERFACE *UsbIf;\r | |
615 | EFI_TPL OldTpl;\r | |
616 | \r | |
617 | if (Descriptor == NULL) {\r | |
618 | return EFI_INVALID_PARAMETER;\r | |
619 | }\r | |
620 | \r | |
621 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
622 | \r | |
623 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
624 | CopyMem (Descriptor, &(UsbIf->IfSetting->Desc), sizeof (EFI_USB_INTERFACE_DESCRIPTOR));\r | |
625 | \r | |
626 | gBS->RestoreTPL (OldTpl);\r | |
627 | return EFI_SUCCESS;\r | |
628 | }\r | |
629 | \r | |
630 | \r | |
631 | /**\r | |
8616fc4c | 632 | Retrieve the endpoint descriptor from this interface setting.\r |
e237e7ae | 633 | \r |
8616fc4c | 634 | @param This The USB IO instance.\r |
e237e7ae | 635 | @param Index The index (start from zero) of the endpoint to\r |
8616fc4c | 636 | retrieve.\r |
637 | @param Descriptor The variable to receive the descriptor.\r | |
e237e7ae | 638 | \r |
8616fc4c | 639 | @retval EFI_SUCCESS The endpoint descriptor is returned.\r |
640 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 641 | \r |
642 | **/\r | |
e237e7ae | 643 | EFI_STATUS\r |
644 | EFIAPI\r | |
645 | UsbIoGetEndpointDescriptor (\r | |
646 | IN EFI_USB_IO_PROTOCOL *This,\r | |
647 | IN UINT8 Index,\r | |
648 | OUT EFI_USB_ENDPOINT_DESCRIPTOR *Descriptor\r | |
649 | )\r | |
650 | {\r | |
651 | USB_INTERFACE *UsbIf;\r | |
652 | EFI_TPL OldTpl;\r | |
653 | \r | |
654 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
655 | \r | |
656 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
657 | \r | |
50fa1b3a | 658 | if ((Descriptor == NULL) || (Index > 15)) {\r |
e237e7ae | 659 | gBS->RestoreTPL (OldTpl);\r |
660 | return EFI_INVALID_PARAMETER;\r | |
661 | }\r | |
662 | \r | |
50fa1b3a | 663 | if (Index >= UsbIf->IfSetting->Desc.NumEndpoints) {\r |
664 | gBS->RestoreTPL (OldTpl);\r | |
665 | return EFI_NOT_FOUND;\r | |
666 | }\r | |
667 | \r | |
e237e7ae | 668 | CopyMem (\r |
669 | Descriptor,\r | |
670 | &(UsbIf->IfSetting->Endpoints[Index]->Desc),\r | |
671 | sizeof (EFI_USB_ENDPOINT_DESCRIPTOR)\r | |
672 | );\r | |
673 | \r | |
674 | gBS->RestoreTPL (OldTpl);\r | |
675 | return EFI_SUCCESS;\r | |
676 | }\r | |
677 | \r | |
678 | \r | |
679 | /**\r | |
8616fc4c | 680 | Retrieve the supported language ID table from the device.\r |
e237e7ae | 681 | \r |
8616fc4c | 682 | @param This The USB IO instance.\r |
683 | @param LangIDTable The table to return the language IDs.\r | |
84909ad4 | 684 | @param TableSize The size, in bytes, of the table LangIDTable.\r |
e237e7ae | 685 | \r |
8616fc4c | 686 | @retval EFI_SUCCESS The language ID is return.\r |
e237e7ae | 687 | \r |
688 | **/\r | |
e237e7ae | 689 | EFI_STATUS\r |
690 | EFIAPI\r | |
691 | UsbIoGetSupportedLanguages (\r | |
692 | IN EFI_USB_IO_PROTOCOL *This,\r | |
693 | OUT UINT16 **LangIDTable,\r | |
694 | OUT UINT16 *TableSize\r | |
695 | )\r | |
696 | {\r | |
697 | USB_DEVICE *Dev;\r | |
698 | USB_INTERFACE *UsbIf;\r | |
699 | EFI_TPL OldTpl;\r | |
700 | \r | |
701 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
702 | \r | |
703 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
704 | Dev = UsbIf->Device;\r | |
705 | \r | |
706 | *LangIDTable = Dev->LangId;\r | |
84909ad4 | 707 | *TableSize = (UINT16) (Dev->TotalLangId * sizeof (UINT16));\r |
e237e7ae | 708 | \r |
709 | gBS->RestoreTPL (OldTpl);\r | |
710 | return EFI_SUCCESS;\r | |
711 | }\r | |
712 | \r | |
713 | \r | |
714 | /**\r | |
8616fc4c | 715 | Retrieve an indexed string in the language of LangID.\r |
e237e7ae | 716 | \r |
8616fc4c | 717 | @param This The USB IO instance.\r |
718 | @param LangID The language ID of the string to retrieve.\r | |
719 | @param StringIndex The index of the string.\r | |
720 | @param String The variable to receive the string.\r | |
e237e7ae | 721 | \r |
8616fc4c | 722 | @retval EFI_SUCCESS The string is returned.\r |
723 | @retval EFI_NOT_FOUND No such string existed.\r | |
e237e7ae | 724 | \r |
725 | **/\r | |
e237e7ae | 726 | EFI_STATUS\r |
727 | EFIAPI\r | |
728 | UsbIoGetStringDescriptor (\r | |
729 | IN EFI_USB_IO_PROTOCOL *This,\r | |
730 | IN UINT16 LangID,\r | |
731 | IN UINT8 StringIndex,\r | |
732 | OUT CHAR16 **String\r | |
733 | )\r | |
734 | {\r | |
735 | USB_DEVICE *Dev;\r | |
736 | USB_INTERFACE *UsbIf;\r | |
737 | EFI_USB_STRING_DESCRIPTOR *StrDesc;\r | |
738 | EFI_TPL OldTpl;\r | |
739 | UINT8 *Buf;\r | |
740 | UINT8 Index;\r | |
741 | EFI_STATUS Status;\r | |
742 | \r | |
743 | if ((StringIndex == 0) || (LangID == 0)) {\r | |
744 | return EFI_NOT_FOUND;\r | |
745 | }\r | |
746 | \r | |
747 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
748 | \r | |
749 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
750 | Dev = UsbIf->Device;\r | |
751 | \r | |
752 | //\r | |
753 | // Check whether language ID is supported\r | |
754 | //\r | |
755 | Status = EFI_NOT_FOUND;\r | |
756 | \r | |
757 | for (Index = 0; Index < Dev->TotalLangId; Index++) {\r | |
a1b749d0 | 758 | ASSERT (Index < USB_MAX_LANG_ID);\r |
e237e7ae | 759 | if (Dev->LangId[Index] == LangID) {\r |
760 | break;\r | |
761 | }\r | |
762 | }\r | |
763 | \r | |
764 | if (Index == Dev->TotalLangId) {\r | |
765 | goto ON_EXIT;\r | |
766 | }\r | |
767 | \r | |
768 | //\r | |
769 | // Retrieve the string descriptor then allocate a buffer\r | |
770 | // to hold the string itself.\r | |
771 | //\r | |
772 | StrDesc = UsbGetOneString (Dev, StringIndex, LangID);\r | |
773 | \r | |
774 | if (StrDesc == NULL) {\r | |
775 | goto ON_EXIT;\r | |
776 | }\r | |
777 | \r | |
778 | if (StrDesc->Length <= 2) {\r | |
779 | goto FREE_STR;\r | |
780 | }\r | |
781 | \r | |
782 | Buf = AllocateZeroPool (StrDesc->Length);\r | |
783 | \r | |
784 | if (Buf == NULL) {\r | |
785 | Status = EFI_OUT_OF_RESOURCES;\r | |
786 | goto FREE_STR;\r | |
787 | }\r | |
788 | \r | |
789 | CopyMem (Buf, StrDesc->String, StrDesc->Length - 2);\r | |
790 | *String = (CHAR16 *) Buf;\r | |
791 | Status = EFI_SUCCESS;\r | |
792 | \r | |
793 | FREE_STR:\r | |
794 | gBS->FreePool (StrDesc);\r | |
795 | \r | |
796 | ON_EXIT:\r | |
797 | gBS->RestoreTPL (OldTpl);\r | |
798 | return Status;\r | |
799 | }\r | |
800 | \r | |
801 | \r | |
802 | /**\r | |
803 | Reset the device, then if that succeeds, reconfigure the\r | |
804 | device with its address and current active configuration.\r | |
805 | \r | |
8616fc4c | 806 | @param This The USB IO instance.\r |
e237e7ae | 807 | \r |
8616fc4c | 808 | @retval EFI_SUCCESS The device is reset and configured.\r |
809 | @retval Others Failed to reset the device.\r | |
e237e7ae | 810 | \r |
811 | **/\r | |
812 | EFI_STATUS\r | |
813 | EFIAPI\r | |
814 | UsbIoPortReset (\r | |
815 | IN EFI_USB_IO_PROTOCOL *This\r | |
816 | )\r | |
817 | {\r | |
818 | USB_INTERFACE *UsbIf;\r | |
819 | USB_INTERFACE *HubIf;\r | |
820 | USB_DEVICE *Dev;\r | |
821 | UINT8 Address;\r | |
822 | EFI_TPL OldTpl;\r | |
823 | EFI_STATUS Status;\r | |
824 | \r | |
825 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
826 | \r | |
827 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
828 | Dev = UsbIf->Device;\r | |
829 | \r | |
a92d4e8a | 830 | if (UsbIf->IsHub) {\r |
50fa1b3a | 831 | Status = EFI_INVALID_PARAMETER;\r |
832 | goto ON_EXIT;\r | |
833 | }\r | |
834 | \r | |
e237e7ae | 835 | HubIf = Dev->ParentIf;\r |
836 | Status = HubIf->HubApi->ResetPort (HubIf, Dev->ParentPort);\r | |
837 | \r | |
838 | if (EFI_ERROR (Status)) {\r | |
d2577026 | 839 | DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to reset hub port %d@hub %d, %r \n",\r |
e237e7ae | 840 | Dev->ParentPort, Dev->ParentAddr, Status));\r |
841 | \r | |
842 | goto ON_EXIT;\r | |
843 | }\r | |
844 | \r | |
845 | //\r | |
846 | // Reset the device to its current address. The device now has a\r | |
847 | // address of ZERO, so need to set Dev->Address to zero first for\r | |
848 | // host to communicate with the device\r | |
849 | //\r | |
850 | Address = Dev->Address;\r | |
851 | Dev->Address = 0;\r | |
852 | Status = UsbSetAddress (Dev, Address);\r | |
efe9186f | 853 | \r |
854 | gBS->Stall (USB_SET_DEVICE_ADDRESS_STALL);\r | |
7e388f85 | 855 | \r |
e237e7ae | 856 | if (EFI_ERROR (Status)) {\r |
d2577026 | 857 | DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to set address for device %d - %r\n",\r |
e237e7ae | 858 | Address, Status));\r |
859 | \r | |
860 | goto ON_EXIT;\r | |
861 | }\r | |
862 | \r | |
efe9186f | 863 | Dev->Address = Address;\r |
e237e7ae | 864 | \r |
7e388f85 | 865 | DEBUG (( EFI_D_INFO, "UsbIoPortReset: device is now ADDRESSED at %d\n", Address));\r |
866 | \r | |
e237e7ae | 867 | //\r |
868 | // Reset the current active configure, after this device\r | |
869 | // is in CONFIGURED state.\r | |
870 | //\r | |
871 | if (Dev->ActiveConfig != NULL) {\r | |
872 | Status = UsbSetConfig (Dev, Dev->ActiveConfig->Desc.ConfigurationValue);\r | |
873 | \r | |
874 | if (EFI_ERROR (Status)) {\r | |
d2577026 | 875 | DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to set configure for device %d - %r\n",\r |
e237e7ae | 876 | Address, Status));\r |
877 | }\r | |
878 | }\r | |
879 | \r | |
880 | ON_EXIT:\r | |
881 | gBS->RestoreTPL (OldTpl);\r | |
882 | return Status;\r | |
883 | }\r | |
884 | \r | |
ecb575d9 | 885 | \r |
886 | /**\r | |
8616fc4c | 887 | Install Usb Bus Protocol on host controller, and start the Usb bus.\r |
ecb575d9 | 888 | \r |
8616fc4c | 889 | @param This The USB bus driver binding instance.\r |
890 | @param Controller The controller to check.\r | |
891 | @param RemainingDevicePath The remaining device patch.\r | |
ecb575d9 | 892 | \r |
8616fc4c | 893 | @retval EFI_SUCCESS The controller is controlled by the usb bus.\r |
894 | @retval EFI_ALREADY_STARTED The controller is already controlled by the usb bus.\r | |
895 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
ecb575d9 | 896 | \r |
897 | **/\r | |
898 | EFI_STATUS\r | |
899 | EFIAPI\r | |
900 | UsbBusBuildProtocol (\r | |
901 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
902 | IN EFI_HANDLE Controller,\r | |
903 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
904 | )\r | |
905 | {\r | |
906 | USB_BUS *UsbBus;\r | |
907 | USB_DEVICE *RootHub;\r | |
908 | USB_INTERFACE *RootIf;\r | |
909 | EFI_STATUS Status;\r | |
910 | EFI_STATUS Status2;\r | |
911 | \r | |
912 | UsbBus = AllocateZeroPool (sizeof (USB_BUS));\r | |
913 | \r | |
914 | if (UsbBus == NULL) {\r | |
915 | return EFI_OUT_OF_RESOURCES;\r | |
916 | }\r | |
917 | \r | |
918 | UsbBus->Signature = USB_BUS_SIGNATURE;\r | |
919 | UsbBus->HostHandle = Controller;\r | |
920 | \r | |
921 | Status = gBS->OpenProtocol (\r | |
922 | Controller,\r | |
923 | &gEfiDevicePathProtocolGuid,\r | |
924 | (VOID **) &UsbBus->DevicePath,\r | |
925 | This->DriverBindingHandle,\r | |
926 | Controller,\r | |
927 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
928 | );\r | |
929 | \r | |
930 | if (EFI_ERROR (Status)) {\r | |
931 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to open device path %r\n", Status));\r | |
932 | \r | |
d17371e8 | 933 | FreePool (UsbBus);\r |
ecb575d9 | 934 | return Status;\r |
935 | }\r | |
936 | \r | |
937 | //\r | |
938 | // Get USB_HC2/USB_HC host controller protocol (EHCI/UHCI).\r | |
d17371e8 | 939 | // This is for backward compatibility with EFI 1.x. In UEFI\r |
ecb575d9 | 940 | // 2.x, USB_HC2 replaces USB_HC. We will open both USB_HC2\r |
941 | // and USB_HC because EHCI driver will install both protocols\r | |
942 | // (for the same reason). If we don't consume both of them,\r | |
943 | // the unconsumed one may be opened by others.\r | |
944 | //\r | |
945 | Status = gBS->OpenProtocol (\r | |
946 | Controller,\r | |
947 | &gEfiUsb2HcProtocolGuid,\r | |
948 | (VOID **) &(UsbBus->Usb2Hc),\r | |
949 | This->DriverBindingHandle,\r | |
950 | Controller,\r | |
951 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
952 | );\r | |
953 | \r | |
954 | Status2 = gBS->OpenProtocol (\r | |
955 | Controller,\r | |
956 | &gEfiUsbHcProtocolGuid,\r | |
957 | (VOID **) &(UsbBus->UsbHc),\r | |
958 | This->DriverBindingHandle,\r | |
959 | Controller,\r | |
960 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
961 | );\r | |
962 | \r | |
963 | if (EFI_ERROR (Status) && EFI_ERROR (Status2)) {\r | |
964 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to open USB_HC/USB2_HC %r\n", Status));\r | |
965 | \r | |
966 | Status = EFI_DEVICE_ERROR;\r | |
967 | goto CLOSE_HC;\r | |
968 | }\r | |
969 | \r | |
92870c98 | 970 | if (!EFI_ERROR (Status)) {\r |
971 | if (UsbBus->Usb2Hc->MajorRevision == 0x3) {\r | |
972 | //\r | |
973 | // The EFI_USB2_HC_PROTOCOL is produced for XHCI support.\r | |
974 | // Then its max supported devices are 256.\r | |
975 | //\r | |
976 | mMaxUsbDeviceNum = 256;\r | |
977 | }\r | |
978 | }\r | |
979 | \r | |
ecb575d9 | 980 | UsbHcReset (UsbBus, EFI_USB_HC_RESET_GLOBAL);\r |
981 | UsbHcSetState (UsbBus, EfiUsbHcStateOperational);\r | |
982 | \r | |
983 | //\r | |
d17371e8 | 984 | // Install an EFI_USB_BUS_PROTOCOL to host controller to identify it.\r |
ecb575d9 | 985 | //\r |
986 | Status = gBS->InstallProtocolInterface (\r | |
987 | &Controller,\r | |
988 | &mUsbBusProtocolGuid,\r | |
989 | EFI_NATIVE_INTERFACE,\r | |
990 | &UsbBus->BusId\r | |
991 | );\r | |
992 | \r | |
993 | if (EFI_ERROR (Status)) {\r | |
994 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to install bus protocol %r\n", Status));\r | |
995 | goto CLOSE_HC;\r | |
996 | }\r | |
997 | \r | |
998 | //\r | |
999 | // Initial the wanted child device path list, and add first RemainingDevicePath\r | |
1000 | //\r | |
1001 | InitializeListHead (&UsbBus->WantedUsbIoDPList);\r | |
1002 | Status = UsbBusAddWantedUsbIoDP (&UsbBus->BusId, RemainingDevicePath);\r | |
1003 | ASSERT (!EFI_ERROR (Status));\r | |
1004 | //\r | |
1005 | // Create a fake usb device for root hub\r | |
1006 | //\r | |
1007 | RootHub = AllocateZeroPool (sizeof (USB_DEVICE));\r | |
1008 | \r | |
1009 | if (RootHub == NULL) {\r | |
1010 | Status = EFI_OUT_OF_RESOURCES;\r | |
1011 | goto UNINSTALL_USBBUS;\r | |
1012 | }\r | |
1013 | \r | |
1014 | RootIf = AllocateZeroPool (sizeof (USB_INTERFACE));\r | |
1015 | \r | |
1016 | if (RootIf == NULL) {\r | |
d17371e8 | 1017 | FreePool (RootHub);\r |
ecb575d9 | 1018 | Status = EFI_OUT_OF_RESOURCES;\r |
1019 | goto FREE_ROOTHUB;\r | |
1020 | }\r | |
1021 | \r | |
1022 | RootHub->Bus = UsbBus;\r | |
1023 | RootHub->NumOfInterface = 1;\r | |
1024 | RootHub->Interfaces[0] = RootIf;\r | |
92870c98 | 1025 | RootHub->Tier = 0;\r |
ecb575d9 | 1026 | RootIf->Signature = USB_INTERFACE_SIGNATURE;\r |
1027 | RootIf->Device = RootHub;\r | |
1028 | RootIf->DevicePath = UsbBus->DevicePath;\r | |
1029 | \r | |
1030 | Status = mUsbRootHubApi.Init (RootIf);\r | |
1031 | \r | |
1032 | if (EFI_ERROR (Status)) {\r | |
1033 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to init root hub %r\n", Status));\r | |
1034 | goto FREE_ROOTHUB;\r | |
1035 | }\r | |
1036 | \r | |
1037 | UsbBus->Devices[0] = RootHub;\r | |
1038 | \r | |
0e549d5b | 1039 | DEBUG ((EFI_D_INFO, "UsbBusStart: usb bus started on %p, root hub %p\n", Controller, RootIf));\r |
ecb575d9 | 1040 | return EFI_SUCCESS;\r |
1041 | \r | |
1042 | FREE_ROOTHUB:\r | |
1043 | if (RootIf != NULL) {\r | |
d17371e8 | 1044 | FreePool (RootIf);\r |
ecb575d9 | 1045 | }\r |
1046 | if (RootHub != NULL) {\r | |
d17371e8 | 1047 | FreePool (RootHub);\r |
ecb575d9 | 1048 | }\r |
1049 | \r | |
1050 | UNINSTALL_USBBUS:\r | |
1051 | gBS->UninstallProtocolInterface (Controller, &mUsbBusProtocolGuid, &UsbBus->BusId);\r | |
1052 | \r | |
1053 | CLOSE_HC:\r | |
1054 | if (UsbBus->Usb2Hc != NULL) {\r | |
1055 | gBS->CloseProtocol (\r | |
1056 | Controller,\r | |
1057 | &gEfiUsb2HcProtocolGuid,\r | |
1058 | This->DriverBindingHandle,\r | |
1059 | Controller\r | |
1060 | );\r | |
1061 | }\r | |
1062 | if (UsbBus->UsbHc != NULL) {\r | |
1063 | gBS->CloseProtocol (\r | |
1064 | Controller,\r | |
1065 | &gEfiUsbHcProtocolGuid,\r | |
1066 | This->DriverBindingHandle,\r | |
1067 | Controller\r | |
1068 | );\r | |
1069 | }\r | |
1070 | gBS->CloseProtocol (\r | |
1071 | Controller,\r | |
1072 | &gEfiDevicePathProtocolGuid,\r | |
1073 | This->DriverBindingHandle,\r | |
1074 | Controller\r | |
1075 | );\r | |
d17371e8 | 1076 | FreePool (UsbBus);\r |
ecb575d9 | 1077 | \r |
1078 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to start bus driver %r\n", Status));\r | |
1079 | return Status;\r | |
1080 | }\r | |
1081 | \r | |
e237e7ae | 1082 | \r |
8616fc4c | 1083 | /**\r |
1084 | The USB bus driver entry pointer.\r | |
1085 | \r | |
1086 | @param ImageHandle The driver image handle.\r | |
1087 | @param SystemTable The system table.\r | |
1088 | \r | |
1089 | @return EFI_SUCCESS The component name protocol is installed.\r | |
1090 | @return Others Failed to init the usb driver.\r | |
1091 | \r | |
1092 | **/\r | |
e237e7ae | 1093 | EFI_STATUS\r |
1094 | EFIAPI\r | |
1095 | UsbBusDriverEntryPoint (\r | |
1096 | IN EFI_HANDLE ImageHandle,\r | |
1097 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1098 | )\r | |
e237e7ae | 1099 | {\r |
62b9bb55 | 1100 | return EfiLibInstallDriverBindingComponentName2 (\r |
e237e7ae | 1101 | ImageHandle,\r |
1102 | SystemTable,\r | |
1103 | &mUsbBusDriverBinding,\r | |
1104 | ImageHandle,\r | |
1105 | &mUsbBusComponentName,\r | |
62b9bb55 | 1106 | &mUsbBusComponentName2\r |
e237e7ae | 1107 | );\r |
1108 | }\r | |
1109 | \r | |
1110 | \r | |
1111 | /**\r | |
8616fc4c | 1112 | Check whether USB bus driver support this device.\r |
e237e7ae | 1113 | \r |
8616fc4c | 1114 | @param This The USB bus driver binding protocol.\r |
34a0bac4 | 1115 | @param Controller The controller handle to check.\r |
8616fc4c | 1116 | @param RemainingDevicePath The remaining device path.\r |
e237e7ae | 1117 | \r |
1118 | @retval EFI_SUCCESS The bus supports this controller.\r | |
8616fc4c | 1119 | @retval EFI_UNSUPPORTED This device isn't supported.\r |
e237e7ae | 1120 | \r |
1121 | **/\r | |
1122 | EFI_STATUS\r | |
1123 | EFIAPI\r | |
1124 | UsbBusControllerDriverSupported (\r | |
1125 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1126 | IN EFI_HANDLE Controller,\r | |
1127 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
1128 | )\r | |
1129 | {\r | |
1130 | EFI_DEV_PATH_PTR DevicePathNode;\r | |
1131 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
1132 | EFI_USB2_HC_PROTOCOL *Usb2Hc;\r | |
1133 | EFI_USB_HC_PROTOCOL *UsbHc;\r | |
1134 | EFI_STATUS Status;\r | |
1135 | \r | |
1136 | //\r | |
1137 | // Check whether device path is valid\r | |
1138 | //\r | |
1139 | if (RemainingDevicePath != NULL) {\r | |
af4a6385 | 1140 | //\r |
1141 | // Check if RemainingDevicePath is the End of Device Path Node, \r | |
1142 | // if yes, go on checking other conditions\r | |
1143 | //\r | |
1144 | if (!IsDevicePathEnd (RemainingDevicePath)) {\r | |
1145 | //\r | |
1146 | // If RemainingDevicePath isn't the End of Device Path Node,\r | |
1147 | // check its validation\r | |
1148 | //\r | |
1149 | DevicePathNode.DevPath = RemainingDevicePath;\r | |
1150 | \r | |
1151 | if ((DevicePathNode.DevPath->Type != MESSAGING_DEVICE_PATH) ||\r | |
1152 | (DevicePathNode.DevPath->SubType != MSG_USB_DP &&\r | |
1153 | DevicePathNode.DevPath->SubType != MSG_USB_CLASS_DP\r | |
1154 | && DevicePathNode.DevPath->SubType != MSG_USB_WWID_DP\r | |
1155 | )) {\r | |
1156 | \r | |
1157 | return EFI_UNSUPPORTED;\r | |
1158 | }\r | |
e237e7ae | 1159 | }\r |
1160 | }\r | |
1161 | \r | |
e237e7ae | 1162 | //\r |
1163 | // Check whether USB_HC2 protocol is installed\r | |
1164 | //\r | |
1165 | Status = gBS->OpenProtocol (\r | |
1166 | Controller,\r | |
1167 | &gEfiUsb2HcProtocolGuid,\r | |
1168 | (VOID **) &Usb2Hc,\r | |
1169 | This->DriverBindingHandle,\r | |
1170 | Controller,\r | |
1171 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1172 | );\r | |
e237e7ae | 1173 | if (Status == EFI_ALREADY_STARTED) {\r |
1174 | return EFI_SUCCESS;\r | |
1175 | }\r | |
1176 | \r | |
af4a6385 | 1177 | if (EFI_ERROR (Status)) {\r |
1178 | //\r | |
1179 | // If failed to open USB_HC2, fall back to USB_HC\r | |
1180 | //\r | |
1181 | Status = gBS->OpenProtocol (\r | |
1182 | Controller,\r | |
1183 | &gEfiUsbHcProtocolGuid,\r | |
1184 | (VOID **) &UsbHc,\r | |
1185 | This->DriverBindingHandle,\r | |
1186 | Controller,\r | |
1187 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1188 | );\r | |
1189 | if (Status == EFI_ALREADY_STARTED) {\r | |
1190 | return EFI_SUCCESS;\r | |
1191 | }\r | |
1192 | \r | |
1193 | if (EFI_ERROR (Status)) {\r | |
1194 | return Status;\r | |
1195 | }\r | |
1196 | \r | |
1197 | //\r | |
1198 | // Close the USB_HC used to perform the supported test\r | |
1199 | //\r | |
e237e7ae | 1200 | gBS->CloseProtocol (\r |
1201 | Controller,\r | |
af4a6385 | 1202 | &gEfiUsbHcProtocolGuid,\r |
e237e7ae | 1203 | This->DriverBindingHandle,\r |
1204 | Controller\r | |
1205 | );\r | |
1206 | \r | |
af4a6385 | 1207 | } else {\r |
e237e7ae | 1208 | \r |
af4a6385 | 1209 | //\r |
1210 | // Close the USB_HC2 used to perform the supported test\r | |
1211 | //\r | |
1212 | gBS->CloseProtocol (\r | |
1213 | Controller,\r | |
1214 | &gEfiUsb2HcProtocolGuid,\r | |
1215 | This->DriverBindingHandle,\r | |
1216 | Controller\r | |
1217 | );\r | |
1218 | }\r | |
1219 | \r | |
e237e7ae | 1220 | //\r |
af4a6385 | 1221 | // Open the EFI Device Path protocol needed to perform the supported test\r |
e237e7ae | 1222 | //\r |
1223 | Status = gBS->OpenProtocol (\r | |
1224 | Controller,\r | |
af4a6385 | 1225 | &gEfiDevicePathProtocolGuid,\r |
1226 | (VOID **) &ParentDevicePath,\r | |
e237e7ae | 1227 | This->DriverBindingHandle,\r |
1228 | Controller,\r | |
1229 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1230 | );\r | |
e237e7ae | 1231 | if (Status == EFI_ALREADY_STARTED) {\r |
1232 | return EFI_SUCCESS;\r | |
1233 | }\r | |
1234 | \r | |
1235 | if (!EFI_ERROR (Status)) {\r | |
af4a6385 | 1236 | //\r |
1237 | // Close protocol, don't use device path protocol in the Support() function\r | |
1238 | //\r | |
e237e7ae | 1239 | gBS->CloseProtocol (\r |
1240 | Controller,\r | |
af4a6385 | 1241 | &gEfiDevicePathProtocolGuid,\r |
e237e7ae | 1242 | This->DriverBindingHandle,\r |
1243 | Controller\r | |
1244 | );\r | |
af4a6385 | 1245 | \r |
1246 | return EFI_SUCCESS;\r | |
e237e7ae | 1247 | }\r |
1248 | \r | |
1249 | return Status;\r | |
1250 | }\r | |
1251 | \r | |
1252 | \r | |
1253 | /**\r | |
8616fc4c | 1254 | Start to process the controller.\r |
e237e7ae | 1255 | \r |
8616fc4c | 1256 | @param This The USB bus driver binding instance.\r |
1257 | @param Controller The controller to check.\r | |
1258 | @param RemainingDevicePath The remaining device patch.\r | |
e237e7ae | 1259 | \r |
8616fc4c | 1260 | @retval EFI_SUCCESS The controller is controlled by the usb bus.\r |
e237e7ae | 1261 | @retval EFI_ALREADY_STARTED The controller is already controlled by the usb\r |
8616fc4c | 1262 | bus.\r |
1263 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
e237e7ae | 1264 | \r |
1265 | **/\r | |
1266 | EFI_STATUS\r | |
1267 | EFIAPI\r | |
1268 | UsbBusControllerDriverStart (\r | |
1269 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1270 | IN EFI_HANDLE Controller,\r | |
1271 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
1272 | )\r | |
1273 | {\r | |
ecb575d9 | 1274 | EFI_USB_BUS_PROTOCOL *UsbBusId;\r |
1275 | EFI_STATUS Status;\r | |
e237e7ae | 1276 | \r |
1277 | //\r | |
1278 | // Locate the USB bus protocol, if it is found, USB bus\r | |
1279 | // is already started on this controller.\r | |
1280 | //\r | |
1281 | Status = gBS->OpenProtocol (\r | |
1282 | Controller,\r | |
1283 | &mUsbBusProtocolGuid,\r | |
1284 | (VOID **) &UsbBusId,\r | |
1285 | This->DriverBindingHandle,\r | |
1286 | Controller,\r | |
1287 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1288 | );\r | |
1289 | \r | |
e237e7ae | 1290 | if (EFI_ERROR (Status)) {\r |
ecb575d9 | 1291 | //\r |
d17371e8 | 1292 | // If first start, build the bus execute environment and install bus protocol\r |
ecb575d9 | 1293 | //\r |
3d0a2385 | 1294 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_IO_BUS_USB | EFI_P_PC_ENABLE));\r |
ecb575d9 | 1295 | Status = UsbBusBuildProtocol (This, Controller, RemainingDevicePath);\r |
1296 | if (EFI_ERROR (Status)) {\r | |
1297 | return Status;\r | |
1298 | }\r | |
1299 | //\r | |
1300 | // Try get the Usb Bus protocol interface again\r | |
1301 | //\r | |
1302 | Status = gBS->OpenProtocol (\r | |
1303 | Controller,\r | |
1304 | &mUsbBusProtocolGuid,\r | |
1305 | (VOID **) &UsbBusId,\r | |
1306 | This->DriverBindingHandle,\r | |
1307 | Controller,\r | |
1308 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1309 | );\r | |
1310 | ASSERT (!EFI_ERROR (Status));\r | |
1311 | } else {\r | |
1312 | //\r | |
1313 | // USB Bus driver need to control the recursive connect policy of the bus, only those wanted\r | |
1314 | // usb child device will be recursively connected.\r | |
1315 | // The RemainingDevicePath indicate the child usb device which user want to fully recursively connecte this time.\r | |
1316 | // All wanted usb child devices will be remembered by the usb bus driver itself.\r | |
1317 | // If RemainingDevicePath == NULL, all the usb child devices in the usb bus are wanted devices.\r | |
1318 | //\r | |
1319 | // Save the passed in RemainingDevicePath this time\r | |
1320 | //\r | |
af4a6385 | 1321 | if (RemainingDevicePath != NULL) {\r |
1322 | if (IsDevicePathEnd (RemainingDevicePath)) {\r | |
1323 | //\r | |
1324 | // If RemainingDevicePath is the End of Device Path Node,\r | |
1325 | // skip enumerate any device and return EFI_SUCESSS\r | |
1326 | // \r | |
1327 | return EFI_SUCCESS;\r | |
1328 | }\r | |
1329 | }\r | |
1330 | \r | |
ecb575d9 | 1331 | Status = UsbBusAddWantedUsbIoDP (UsbBusId, RemainingDevicePath);\r |
1332 | ASSERT (!EFI_ERROR (Status));\r | |
1333 | //\r | |
1334 | // Ensure all wanted child usb devices are fully recursively connected\r | |
1335 | //\r | |
1336 | Status = UsbBusRecursivelyConnectWantedUsbIo (UsbBusId);\r | |
1337 | ASSERT (!EFI_ERROR (Status));\r | |
e237e7ae | 1338 | }\r |
1339 | \r | |
e237e7ae | 1340 | \r |
e237e7ae | 1341 | return EFI_SUCCESS;\r |
e237e7ae | 1342 | }\r |
1343 | \r | |
1344 | \r | |
1345 | /**\r | |
8616fc4c | 1346 | Stop handle the controller by this USB bus driver.\r |
e237e7ae | 1347 | \r |
8616fc4c | 1348 | @param This The USB bus driver binding protocol.\r |
1349 | @param Controller The controller to release.\r | |
e237e7ae | 1350 | @param NumberOfChildren The child of USB bus that opened controller\r |
8616fc4c | 1351 | BY_CHILD.\r |
1352 | @param ChildHandleBuffer The array of child handle.\r | |
e237e7ae | 1353 | \r |
8616fc4c | 1354 | @retval EFI_SUCCESS The controller or children are stopped.\r |
1355 | @retval EFI_DEVICE_ERROR Failed to stop the driver.\r | |
e237e7ae | 1356 | \r |
1357 | **/\r | |
1358 | EFI_STATUS\r | |
1359 | EFIAPI\r | |
1360 | UsbBusControllerDriverStop (\r | |
1361 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1362 | IN EFI_HANDLE Controller,\r | |
1363 | IN UINTN NumberOfChildren,\r | |
1364 | IN EFI_HANDLE *ChildHandleBuffer\r | |
1365 | )\r | |
1366 | {\r | |
1367 | USB_BUS *Bus;\r | |
1368 | USB_DEVICE *RootHub;\r | |
1369 | USB_DEVICE *UsbDev;\r | |
1370 | USB_INTERFACE *RootIf;\r | |
1371 | USB_INTERFACE *UsbIf;\r | |
1372 | EFI_USB_BUS_PROTOCOL *BusId;\r | |
1373 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
1374 | EFI_TPL OldTpl;\r | |
1375 | UINTN Index;\r | |
1376 | EFI_STATUS Status;\r | |
1377 | \r | |
1378 | Status = EFI_SUCCESS;\r | |
1379 | \r | |
1380 | if (NumberOfChildren > 0) {\r | |
ecb575d9 | 1381 | //\r |
1382 | // BugBug: Raise TPL to callback level instead of USB_BUS_TPL to avoid TPL conflict\r | |
1383 | //\r | |
1384 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
e237e7ae | 1385 | \r |
1386 | for (Index = 0; Index < NumberOfChildren; Index++) {\r | |
1387 | Status = gBS->OpenProtocol (\r | |
1388 | ChildHandleBuffer[Index],\r | |
1389 | &gEfiUsbIoProtocolGuid,\r | |
1390 | (VOID **) &UsbIo,\r | |
1391 | This->DriverBindingHandle,\r | |
1392 | Controller,\r | |
1393 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1394 | );\r | |
1395 | \r | |
1396 | if (EFI_ERROR (Status)) {\r | |
1397 | //\r | |
1398 | // It is possible that the child has already been released:\r | |
1399 | // 1. For combo device, free one device will release others.\r | |
1400 | // 2. If a hub is released, all devices on its down facing\r | |
1401 | // ports are released also.\r | |
1402 | //\r | |
1403 | continue;\r | |
1404 | }\r | |
1405 | \r | |
1406 | UsbIf = USB_INTERFACE_FROM_USBIO (UsbIo);\r | |
1407 | UsbDev = UsbIf->Device;\r | |
1408 | \r | |
1409 | UsbRemoveDevice (UsbDev);\r | |
1410 | }\r | |
1411 | \r | |
1412 | gBS->RestoreTPL (OldTpl);\r | |
1413 | return EFI_SUCCESS;\r | |
1414 | }\r | |
1415 | \r | |
0e549d5b | 1416 | DEBUG (( EFI_D_INFO, "UsbBusStop: usb bus stopped on %p\n", Controller));\r |
e237e7ae | 1417 | \r |
1418 | //\r | |
1419 | // Locate USB_BUS for the current host controller\r | |
1420 | //\r | |
1421 | Status = gBS->OpenProtocol (\r | |
1422 | Controller,\r | |
1423 | &mUsbBusProtocolGuid,\r | |
1424 | (VOID **) &BusId,\r | |
1425 | This->DriverBindingHandle,\r | |
1426 | Controller,\r | |
1427 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1428 | );\r | |
1429 | \r | |
1430 | if (EFI_ERROR (Status)) {\r | |
1431 | return Status;\r | |
1432 | }\r | |
1433 | \r | |
1434 | Bus = USB_BUS_FROM_THIS (BusId);\r | |
1435 | \r | |
1436 | //\r | |
1437 | // Stop the root hub, then free all the devices\r | |
1438 | //\r | |
ecb575d9 | 1439 | // BugBug: Raise TPL to callback level instead of USB_BUS_TPL to avoid TPL conflict\r |
1440 | //\r | |
1441 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
e237e7ae | 1442 | UsbHcSetState (Bus, EfiUsbHcStateHalt);\r |
1443 | \r | |
1444 | RootHub = Bus->Devices[0];\r | |
1445 | RootIf = RootHub->Interfaces[0];\r | |
1446 | \r | |
1447 | mUsbRootHubApi.Release (RootIf);\r | |
1448 | \r | |
92870c98 | 1449 | for (Index = 1; Index < mMaxUsbDeviceNum; Index++) {\r |
e237e7ae | 1450 | if (Bus->Devices[Index] != NULL) {\r |
1451 | UsbRemoveDevice (Bus->Devices[Index]);\r | |
1452 | }\r | |
1453 | }\r | |
1454 | \r | |
1455 | gBS->RestoreTPL (OldTpl);\r | |
1456 | \r | |
1457 | gBS->FreePool (RootIf);\r | |
1458 | gBS->FreePool (RootHub);\r | |
ecb575d9 | 1459 | Status = UsbBusFreeUsbDPList (&Bus->WantedUsbIoDPList);\r |
1460 | ASSERT (!EFI_ERROR (Status));\r | |
e237e7ae | 1461 | \r |
1462 | //\r | |
1463 | // Uninstall the bus identifier and close USB_HC/USB2_HC protocols\r | |
1464 | //\r | |
1465 | gBS->UninstallProtocolInterface (Controller, &mUsbBusProtocolGuid, &Bus->BusId);\r | |
1466 | \r | |
1467 | if (Bus->Usb2Hc != NULL) {\r | |
1468 | gBS->CloseProtocol (\r | |
1469 | Controller,\r | |
1470 | &gEfiUsb2HcProtocolGuid,\r | |
1471 | This->DriverBindingHandle,\r | |
1472 | Controller\r | |
1473 | );\r | |
1474 | }\r | |
1475 | \r | |
1476 | if (Bus->UsbHc != NULL) {\r | |
1477 | gBS->CloseProtocol (\r | |
1478 | Controller,\r | |
1479 | &gEfiUsbHcProtocolGuid,\r | |
1480 | This->DriverBindingHandle,\r | |
1481 | Controller\r | |
1482 | );\r | |
1483 | }\r | |
1484 | \r | |
1485 | gBS->CloseProtocol (\r | |
1486 | Controller,\r | |
1487 | &gEfiDevicePathProtocolGuid,\r | |
1488 | This->DriverBindingHandle,\r | |
1489 | Controller\r | |
1490 | );\r | |
1491 | \r | |
1492 | gBS->FreePool (Bus);\r | |
1493 | \r | |
1494 | return Status;\r | |
1495 | }\r |