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e237e7ae | 1 | /** @file\r |
2 | \r | |
8616fc4c | 3 | Usb Bus Driver Binding and Bus IO Protocol.\r |
4 | \r | |
9bdcf582 | 5 | Copyright (c) 2004 - 2013, 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 | |
aa79b0b3 | 18 | EFI_USB_IO_PROTOCOL mUsbIoProtocol = {\r |
19 | UsbIoControlTransfer,\r | |
20 | UsbIoBulkTransfer,\r | |
21 | UsbIoAsyncInterruptTransfer,\r | |
22 | UsbIoSyncInterruptTransfer,\r | |
23 | UsbIoIsochronousTransfer,\r | |
24 | UsbIoAsyncIsochronousTransfer,\r | |
25 | UsbIoGetDeviceDescriptor,\r | |
26 | UsbIoGetActiveConfigDescriptor,\r | |
27 | UsbIoGetInterfaceDescriptor,\r | |
28 | UsbIoGetEndpointDescriptor,\r | |
29 | UsbIoGetStringDescriptor,\r | |
30 | UsbIoGetSupportedLanguages,\r | |
31 | UsbIoPortReset\r | |
32 | };\r | |
33 | \r | |
34 | EFI_DRIVER_BINDING_PROTOCOL mUsbBusDriverBinding = {\r | |
35 | UsbBusControllerDriverSupported,\r | |
36 | UsbBusControllerDriverStart,\r | |
37 | UsbBusControllerDriverStop,\r | |
38 | 0xa,\r | |
39 | NULL,\r | |
40 | NULL\r | |
41 | };\r | |
42 | \r | |
e237e7ae | 43 | /**\r |
44 | USB_IO function to execute a control transfer. This\r | |
45 | function will execute the USB transfer. If transfer\r | |
46 | successes, it will sync the internal state of USB bus\r | |
47 | with device state.\r | |
48 | \r | |
49 | @param This The USB_IO instance\r | |
50 | @param Request The control transfer request\r | |
51 | @param Direction Direction for data stage\r | |
52 | @param Timeout The time to wait before timeout\r | |
53 | @param Data The buffer holding the data\r | |
54 | @param DataLength Then length of the data\r | |
55 | @param UsbStatus USB result\r | |
56 | \r | |
57 | @retval EFI_INVALID_PARAMETER The parameters are invalid\r | |
d17371e8 | 58 | @retval EFI_SUCCESS The control transfer succeeded.\r |
e237e7ae | 59 | @retval Others Failed to execute the transfer\r |
60 | \r | |
61 | **/\r | |
e237e7ae | 62 | EFI_STATUS\r |
63 | EFIAPI\r | |
64 | UsbIoControlTransfer (\r | |
65 | IN EFI_USB_IO_PROTOCOL *This,\r | |
66 | IN EFI_USB_DEVICE_REQUEST *Request,\r | |
67 | IN EFI_USB_DATA_DIRECTION Direction,\r | |
68 | IN UINT32 Timeout,\r | |
69 | IN OUT VOID *Data, OPTIONAL\r | |
70 | IN UINTN DataLength, OPTIONAL\r | |
71 | OUT UINT32 *UsbStatus\r | |
72 | )\r | |
73 | {\r | |
74 | USB_DEVICE *Dev;\r | |
75 | USB_INTERFACE *UsbIf;\r | |
76 | USB_ENDPOINT_DESC *EpDesc;\r | |
77 | EFI_TPL OldTpl;\r | |
78 | EFI_STATUS Status;\r | |
79 | \r | |
80 | if (UsbStatus == NULL) {\r | |
81 | return EFI_INVALID_PARAMETER;\r | |
82 | }\r | |
83 | \r | |
84 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
85 | \r | |
86 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
87 | Dev = UsbIf->Device;\r | |
88 | \r | |
89 | Status = UsbHcControlTransfer (\r | |
90 | Dev->Bus,\r | |
91 | Dev->Address,\r | |
92 | Dev->Speed,\r | |
93 | Dev->MaxPacket0,\r | |
94 | Request,\r | |
95 | Direction,\r | |
96 | Data,\r | |
97 | &DataLength,\r | |
98 | (UINTN) Timeout,\r | |
99 | &Dev->Translator,\r | |
100 | UsbStatus\r | |
101 | );\r | |
102 | \r | |
103 | if (EFI_ERROR (Status) || (*UsbStatus != EFI_USB_NOERROR)) {\r | |
104 | //\r | |
105 | // Clear TT buffer when CTRL/BULK split transaction failes\r | |
106 | // Clear the TRANSLATOR TT buffer, not parent's buffer\r | |
107 | //\r | |
a9292c13 | 108 | ASSERT (Dev->Translator.TranslatorHubAddress < Dev->Bus->MaxDevices);\r |
e237e7ae | 109 | if (Dev->Translator.TranslatorHubAddress != 0) {\r |
110 | UsbHubCtrlClearTTBuffer (\r | |
111 | Dev->Bus->Devices[Dev->Translator.TranslatorHubAddress],\r | |
112 | Dev->Translator.TranslatorPortNumber,\r | |
113 | Dev->Address,\r | |
114 | 0,\r | |
115 | USB_ENDPOINT_CONTROL\r | |
116 | );\r | |
117 | }\r | |
118 | \r | |
119 | goto ON_EXIT;\r | |
120 | }\r | |
121 | \r | |
122 | //\r | |
123 | // Some control transfer will change the device's internal\r | |
124 | // status, such as Set_Configuration and Set_Interface.\r | |
125 | // We must synchronize the bus driver's status with that in\r | |
126 | // device. We ignore the Set_Descriptor request because it's\r | |
127 | // hardly used by any device, especially in pre-boot environment\r | |
128 | //\r | |
129 | \r | |
130 | //\r | |
131 | // Reset the endpoint toggle when endpoint stall is cleared\r | |
132 | //\r | |
133 | if ((Request->Request == USB_REQ_CLEAR_FEATURE) &&\r | |
134 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
135 | USB_TARGET_ENDPOINT)) &&\r | |
136 | (Request->Value == USB_FEATURE_ENDPOINT_HALT)) {\r | |
137 | \r | |
138 | EpDesc = UsbGetEndpointDesc (UsbIf, (UINT8) Request->Index);\r | |
139 | \r | |
140 | if (EpDesc != NULL) {\r | |
141 | EpDesc->Toggle = 0;\r | |
142 | }\r | |
143 | }\r | |
144 | \r | |
145 | //\r | |
146 | // Select a new configuration. This is a dangerous action. Upper driver\r | |
147 | // should stop use its current UsbIo after calling this driver. The old\r | |
148 | // UsbIo will be uninstalled and new UsbIo be installed. We can't use\r | |
149 | // ReinstallProtocol since interfaces in different configuration may be\r | |
d17371e8 | 150 | // completely irrelevant.\r |
e237e7ae | 151 | //\r |
152 | if ((Request->Request == USB_REQ_SET_CONFIG) &&\r | |
153 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
154 | USB_TARGET_DEVICE))) {\r | |
155 | //\r | |
156 | // Don't re-create the USB interfaces if configuration isn't changed.\r | |
157 | //\r | |
158 | if ((Dev->ActiveConfig != NULL) &&\r | |
159 | (Request->Value == Dev->ActiveConfig->Desc.ConfigurationValue)) {\r | |
160 | \r | |
161 | goto ON_EXIT;\r | |
162 | }\r | |
d2577026 | 163 | DEBUG ((EFI_D_INFO, "UsbIoControlTransfer: configure changed!!! Do NOT use old UsbIo!!!\n"));\r |
e237e7ae | 164 | \r |
165 | if (Dev->ActiveConfig != NULL) {\r | |
166 | UsbRemoveConfig (Dev);\r | |
167 | }\r | |
168 | \r | |
169 | if (Request->Value != 0) {\r | |
170 | Status = UsbSelectConfig (Dev, (UINT8) Request->Value);\r | |
171 | }\r | |
172 | \r | |
173 | //\r | |
174 | // Exit now, Old USB_IO is invalid now\r | |
175 | //\r | |
176 | goto ON_EXIT;\r | |
177 | }\r | |
178 | \r | |
179 | //\r | |
180 | // A new alternative setting is selected for the interface.\r | |
181 | // No need to reinstall UsbIo in this case because only\r | |
182 | // underlying communication endpoints are changed. Functionality\r | |
183 | // should remains the same.\r | |
184 | //\r | |
185 | if ((Request->Request == USB_REQ_SET_INTERFACE) &&\r | |
186 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
187 | USB_TARGET_INTERFACE)) &&\r | |
188 | (Request->Index == UsbIf->IfSetting->Desc.InterfaceNumber)) {\r | |
189 | \r | |
190 | Status = UsbSelectSetting (UsbIf->IfDesc, (UINT8) Request->Value);\r | |
191 | \r | |
192 | if (!EFI_ERROR (Status)) {\r | |
a1b749d0 | 193 | ASSERT (UsbIf->IfDesc->ActiveIndex < USB_MAX_INTERFACE_SETTING);\r |
e237e7ae | 194 | UsbIf->IfSetting = UsbIf->IfDesc->Settings[UsbIf->IfDesc->ActiveIndex];\r |
195 | }\r | |
196 | }\r | |
197 | \r | |
198 | ON_EXIT:\r | |
199 | gBS->RestoreTPL (OldTpl);\r | |
200 | return Status;\r | |
201 | }\r | |
202 | \r | |
203 | \r | |
204 | /**\r | |
8616fc4c | 205 | Execute a bulk transfer to the device endpoint.\r |
e237e7ae | 206 | \r |
8616fc4c | 207 | @param This The USB IO instance.\r |
208 | @param Endpoint The device endpoint.\r | |
209 | @param Data The data to transfer.\r | |
210 | @param DataLength The length of the data to transfer.\r | |
211 | @param Timeout Time to wait before timeout.\r | |
212 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 213 | \r |
8616fc4c | 214 | @retval EFI_SUCCESS The bulk transfer is OK.\r |
215 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 216 | @retval Others Failed to execute transfer, reason returned in\r |
8616fc4c | 217 | UsbStatus.\r |
e237e7ae | 218 | \r |
219 | **/\r | |
e237e7ae | 220 | EFI_STATUS\r |
221 | EFIAPI\r | |
222 | UsbIoBulkTransfer (\r | |
223 | IN EFI_USB_IO_PROTOCOL *This,\r | |
224 | IN UINT8 Endpoint,\r | |
225 | IN OUT VOID *Data,\r | |
226 | IN OUT UINTN *DataLength,\r | |
227 | IN UINTN Timeout,\r | |
228 | OUT UINT32 *UsbStatus\r | |
229 | )\r | |
230 | {\r | |
231 | USB_DEVICE *Dev;\r | |
232 | USB_INTERFACE *UsbIf;\r | |
233 | USB_ENDPOINT_DESC *EpDesc;\r | |
234 | UINT8 BufNum;\r | |
235 | UINT8 Toggle;\r | |
236 | EFI_TPL OldTpl;\r | |
237 | EFI_STATUS Status;\r | |
238 | \r | |
239 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR(Endpoint) > 15) ||\r | |
240 | (UsbStatus == NULL)) {\r | |
241 | \r | |
242 | return EFI_INVALID_PARAMETER;\r | |
243 | }\r | |
244 | \r | |
245 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
246 | \r | |
247 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
248 | Dev = UsbIf->Device;\r | |
249 | \r | |
250 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
251 | \r | |
252 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_BULK)) {\r | |
253 | Status = EFI_INVALID_PARAMETER;\r | |
254 | goto ON_EXIT;\r | |
255 | }\r | |
256 | \r | |
257 | BufNum = 1;\r | |
258 | Toggle = EpDesc->Toggle;\r | |
259 | Status = UsbHcBulkTransfer (\r | |
260 | Dev->Bus,\r | |
261 | Dev->Address,\r | |
262 | Endpoint,\r | |
263 | Dev->Speed,\r | |
264 | EpDesc->Desc.MaxPacketSize,\r | |
265 | BufNum,\r | |
266 | &Data,\r | |
267 | DataLength,\r | |
268 | &Toggle,\r | |
269 | Timeout,\r | |
270 | &Dev->Translator,\r | |
271 | UsbStatus\r | |
272 | );\r | |
273 | \r | |
274 | EpDesc->Toggle = Toggle;\r | |
275 | \r | |
276 | if (EFI_ERROR (Status) || (*UsbStatus != EFI_USB_NOERROR)) {\r | |
277 | //\r | |
278 | // Clear TT buffer when CTRL/BULK split transaction failes.\r | |
279 | // Clear the TRANSLATOR TT buffer, not parent's buffer\r | |
280 | //\r | |
a9292c13 | 281 | ASSERT (Dev->Translator.TranslatorHubAddress < Dev->Bus->MaxDevices);\r |
e237e7ae | 282 | if (Dev->Translator.TranslatorHubAddress != 0) {\r |
283 | UsbHubCtrlClearTTBuffer (\r | |
284 | Dev->Bus->Devices[Dev->Translator.TranslatorHubAddress],\r | |
285 | Dev->Translator.TranslatorPortNumber,\r | |
286 | Dev->Address,\r | |
287 | 0,\r | |
288 | USB_ENDPOINT_BULK\r | |
289 | );\r | |
290 | }\r | |
291 | }\r | |
292 | \r | |
293 | ON_EXIT:\r | |
294 | gBS->RestoreTPL (OldTpl);\r | |
295 | return Status;\r | |
296 | }\r | |
297 | \r | |
298 | \r | |
299 | /**\r | |
8616fc4c | 300 | Execute a synchronous interrupt transfer.\r |
e237e7ae | 301 | \r |
8616fc4c | 302 | @param This The USB IO instance.\r |
303 | @param Endpoint The device endpoint.\r | |
304 | @param Data The data to transfer.\r | |
305 | @param DataLength The length of the data to transfer.\r | |
306 | @param Timeout Time to wait before timeout.\r | |
307 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 308 | \r |
8616fc4c | 309 | @retval EFI_SUCCESS The synchronous interrupt transfer is OK.\r |
310 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 311 | @retval Others Failed to execute transfer, reason returned in\r |
8616fc4c | 312 | UsbStatus.\r |
e237e7ae | 313 | \r |
314 | **/\r | |
e237e7ae | 315 | EFI_STATUS\r |
316 | EFIAPI\r | |
317 | UsbIoSyncInterruptTransfer (\r | |
318 | IN EFI_USB_IO_PROTOCOL *This,\r | |
319 | IN UINT8 Endpoint,\r | |
320 | IN OUT VOID *Data,\r | |
321 | IN OUT UINTN *DataLength,\r | |
322 | IN UINTN Timeout,\r | |
323 | OUT UINT32 *UsbStatus\r | |
324 | )\r | |
325 | {\r | |
326 | USB_DEVICE *Dev;\r | |
327 | USB_INTERFACE *UsbIf;\r | |
328 | USB_ENDPOINT_DESC *EpDesc;\r | |
329 | EFI_TPL OldTpl;\r | |
330 | UINT8 Toggle;\r | |
331 | EFI_STATUS Status;\r | |
332 | \r | |
333 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR(Endpoint) > 15) ||\r | |
334 | (UsbStatus == NULL)) {\r | |
335 | \r | |
336 | return EFI_INVALID_PARAMETER;\r | |
337 | }\r | |
338 | \r | |
339 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
340 | \r | |
341 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
342 | Dev = UsbIf->Device;\r | |
343 | \r | |
344 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
345 | \r | |
346 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_INTERRUPT)) {\r | |
347 | Status = EFI_INVALID_PARAMETER;\r | |
348 | goto ON_EXIT;\r | |
349 | }\r | |
350 | \r | |
351 | Toggle = EpDesc->Toggle;\r | |
352 | Status = UsbHcSyncInterruptTransfer (\r | |
353 | Dev->Bus,\r | |
354 | Dev->Address,\r | |
355 | Endpoint,\r | |
356 | Dev->Speed,\r | |
357 | EpDesc->Desc.MaxPacketSize,\r | |
358 | Data,\r | |
359 | DataLength,\r | |
360 | &Toggle,\r | |
361 | Timeout,\r | |
362 | &Dev->Translator,\r | |
363 | UsbStatus\r | |
364 | );\r | |
365 | \r | |
366 | EpDesc->Toggle = Toggle;\r | |
367 | \r | |
368 | ON_EXIT:\r | |
369 | gBS->RestoreTPL (OldTpl);\r | |
370 | return Status;\r | |
371 | }\r | |
372 | \r | |
373 | \r | |
374 | /**\r | |
375 | Queue a new asynchronous interrupt transfer, or remove the old\r | |
8616fc4c | 376 | request if (IsNewTransfer == FALSE).\r |
e237e7ae | 377 | \r |
8616fc4c | 378 | @param This The USB_IO instance.\r |
379 | @param Endpoint The device endpoint.\r | |
e237e7ae | 380 | @param IsNewTransfer Whether this is a new request, if it's old, remove\r |
8616fc4c | 381 | the request.\r |
382 | @param PollInterval The interval to poll the transfer result, (in ms).\r | |
383 | @param DataLength The length of perodic data transfer.\r | |
e237e7ae | 384 | @param Callback The function to call periodicaly when transfer is\r |
8616fc4c | 385 | ready.\r |
386 | @param Context The context to the callback.\r | |
e237e7ae | 387 | \r |
8616fc4c | 388 | @retval EFI_SUCCESS New transfer is queued or old request is removed.\r |
389 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 390 | @retval Others Failed to queue the new request or remove the old\r |
8616fc4c | 391 | request.\r |
e237e7ae | 392 | \r |
393 | **/\r | |
e237e7ae | 394 | EFI_STATUS\r |
395 | EFIAPI\r | |
396 | UsbIoAsyncInterruptTransfer (\r | |
397 | IN EFI_USB_IO_PROTOCOL *This,\r | |
398 | IN UINT8 Endpoint,\r | |
399 | IN BOOLEAN IsNewTransfer,\r | |
400 | IN UINTN PollInterval, OPTIONAL\r | |
401 | IN UINTN DataLength, OPTIONAL\r | |
402 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback, OPTIONAL\r | |
403 | IN VOID *Context OPTIONAL\r | |
404 | )\r | |
405 | {\r | |
406 | USB_DEVICE *Dev;\r | |
407 | USB_INTERFACE *UsbIf;\r | |
408 | USB_ENDPOINT_DESC *EpDesc;\r | |
409 | EFI_TPL OldTpl;\r | |
410 | UINT8 Toggle;\r | |
411 | EFI_STATUS Status;\r | |
412 | \r | |
413 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR (Endpoint) > 15)) {\r | |
414 | return EFI_INVALID_PARAMETER;\r | |
415 | }\r | |
416 | \r | |
417 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
418 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
419 | Dev = UsbIf->Device;\r | |
420 | \r | |
421 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
422 | \r | |
423 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_INTERRUPT)) {\r | |
424 | Status = EFI_INVALID_PARAMETER;\r | |
425 | goto ON_EXIT;\r | |
426 | }\r | |
427 | \r | |
428 | Toggle = EpDesc->Toggle;\r | |
429 | Status = UsbHcAsyncInterruptTransfer (\r | |
430 | Dev->Bus,\r | |
431 | Dev->Address,\r | |
432 | Endpoint,\r | |
433 | Dev->Speed,\r | |
434 | EpDesc->Desc.MaxPacketSize,\r | |
435 | IsNewTransfer,\r | |
436 | &Toggle,\r | |
437 | PollInterval,\r | |
438 | DataLength,\r | |
439 | &Dev->Translator,\r | |
440 | Callback,\r | |
441 | Context\r | |
442 | );\r | |
443 | \r | |
444 | EpDesc->Toggle = Toggle;\r | |
445 | \r | |
446 | ON_EXIT:\r | |
447 | gBS->RestoreTPL (OldTpl);\r | |
448 | return Status;\r | |
449 | }\r | |
450 | \r | |
451 | \r | |
452 | /**\r | |
8616fc4c | 453 | Execute a synchronous isochronous transfer.\r |
e237e7ae | 454 | \r |
8616fc4c | 455 | @param This The USB IO instance.\r |
456 | @param DeviceEndpoint The device endpoint.\r | |
457 | @param Data The data to transfer.\r | |
458 | @param DataLength The length of the data to transfer.\r | |
459 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 460 | \r |
8616fc4c | 461 | @retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.\r |
e237e7ae | 462 | \r |
463 | **/\r | |
e237e7ae | 464 | EFI_STATUS\r |
465 | EFIAPI\r | |
466 | UsbIoIsochronousTransfer (\r | |
467 | IN EFI_USB_IO_PROTOCOL *This,\r | |
468 | IN UINT8 DeviceEndpoint,\r | |
469 | IN OUT VOID *Data,\r | |
470 | IN UINTN DataLength,\r | |
471 | OUT UINT32 *Status\r | |
472 | )\r | |
473 | {\r | |
474 | return EFI_UNSUPPORTED;\r | |
475 | }\r | |
476 | \r | |
477 | \r | |
478 | /**\r | |
8616fc4c | 479 | Queue an asynchronous isochronous transfer.\r |
e237e7ae | 480 | \r |
8616fc4c | 481 | @param This The USB_IO instance.\r |
482 | @param DeviceEndpoint The device endpoint.\r | |
483 | @param Data The data to transfer.\r | |
484 | @param DataLength The length of perodic data transfer.\r | |
e237e7ae | 485 | @param IsochronousCallBack The function to call periodicaly when transfer is\r |
8616fc4c | 486 | ready.\r |
487 | @param Context The context to the callback.\r | |
e237e7ae | 488 | \r |
8616fc4c | 489 | @retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.\r |
e237e7ae | 490 | \r |
491 | **/\r | |
e237e7ae | 492 | EFI_STATUS\r |
493 | EFIAPI\r | |
494 | UsbIoAsyncIsochronousTransfer (\r | |
495 | IN EFI_USB_IO_PROTOCOL *This,\r | |
496 | IN UINT8 DeviceEndpoint,\r | |
497 | IN OUT VOID *Data,\r | |
498 | IN UINTN DataLength,\r | |
499 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,\r | |
500 | IN VOID *Context OPTIONAL\r | |
501 | )\r | |
502 | {\r | |
503 | return EFI_UNSUPPORTED;\r | |
504 | }\r | |
505 | \r | |
506 | \r | |
507 | /**\r | |
8616fc4c | 508 | Retrieve the device descriptor of the device.\r |
e237e7ae | 509 | \r |
8616fc4c | 510 | @param This The USB IO instance.\r |
511 | @param Descriptor The variable to receive the device descriptor.\r | |
e237e7ae | 512 | \r |
8616fc4c | 513 | @retval EFI_SUCCESS The device descriptor is returned.\r |
514 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
e237e7ae | 515 | \r |
516 | **/\r | |
e237e7ae | 517 | EFI_STATUS\r |
518 | EFIAPI\r | |
519 | UsbIoGetDeviceDescriptor (\r | |
520 | IN EFI_USB_IO_PROTOCOL *This,\r | |
521 | OUT EFI_USB_DEVICE_DESCRIPTOR *Descriptor\r | |
522 | )\r | |
523 | {\r | |
524 | USB_DEVICE *Dev;\r | |
525 | USB_INTERFACE *UsbIf;\r | |
526 | EFI_TPL OldTpl;\r | |
527 | \r | |
528 | if (Descriptor == NULL) {\r | |
529 | return EFI_INVALID_PARAMETER;\r | |
530 | }\r | |
531 | \r | |
532 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
533 | \r | |
534 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
535 | Dev = UsbIf->Device;\r | |
536 | \r | |
537 | CopyMem (Descriptor, &Dev->DevDesc->Desc, sizeof (EFI_USB_DEVICE_DESCRIPTOR));\r | |
538 | \r | |
539 | gBS->RestoreTPL (OldTpl);\r | |
540 | return EFI_SUCCESS;\r | |
541 | }\r | |
542 | \r | |
543 | \r | |
544 | /**\r | |
8616fc4c | 545 | Return the configuration descriptor of the current active configuration.\r |
e237e7ae | 546 | \r |
8616fc4c | 547 | @param This The USB IO instance.\r |
548 | @param Descriptor The USB configuration descriptor.\r | |
e237e7ae | 549 | \r |
8616fc4c | 550 | @retval EFI_SUCCESS The active configuration descriptor is returned.\r |
551 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 552 | @retval EFI_NOT_FOUND Currently no active configuration is selected.\r |
553 | \r | |
554 | **/\r | |
e237e7ae | 555 | EFI_STATUS\r |
556 | EFIAPI\r | |
557 | UsbIoGetActiveConfigDescriptor (\r | |
558 | IN EFI_USB_IO_PROTOCOL *This,\r | |
559 | OUT EFI_USB_CONFIG_DESCRIPTOR *Descriptor\r | |
560 | )\r | |
561 | {\r | |
562 | USB_DEVICE *Dev;\r | |
563 | USB_INTERFACE *UsbIf;\r | |
564 | EFI_STATUS Status;\r | |
565 | EFI_TPL OldTpl;\r | |
566 | \r | |
567 | if (Descriptor == NULL) {\r | |
568 | return EFI_INVALID_PARAMETER;\r | |
569 | }\r | |
570 | \r | |
571 | Status = EFI_SUCCESS;\r | |
572 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
573 | \r | |
574 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
575 | Dev = UsbIf->Device;\r | |
576 | \r | |
577 | if (Dev->ActiveConfig == NULL) {\r | |
578 | Status = EFI_NOT_FOUND;\r | |
579 | goto ON_EXIT;\r | |
580 | }\r | |
581 | \r | |
582 | CopyMem (Descriptor, &(Dev->ActiveConfig->Desc), sizeof (EFI_USB_CONFIG_DESCRIPTOR));\r | |
583 | \r | |
584 | ON_EXIT:\r | |
585 | gBS->RestoreTPL (OldTpl);\r | |
586 | return Status;\r | |
587 | }\r | |
588 | \r | |
589 | \r | |
590 | /**\r | |
8616fc4c | 591 | Retrieve the active interface setting descriptor for this USB IO instance.\r |
e237e7ae | 592 | \r |
8616fc4c | 593 | @param This The USB IO instance.\r |
594 | @param Descriptor The variable to receive active interface setting.\r | |
e237e7ae | 595 | \r |
8616fc4c | 596 | @retval EFI_SUCCESS The active interface setting is returned.\r |
597 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 598 | \r |
599 | **/\r | |
e237e7ae | 600 | EFI_STATUS\r |
601 | EFIAPI\r | |
602 | UsbIoGetInterfaceDescriptor (\r | |
603 | IN EFI_USB_IO_PROTOCOL *This,\r | |
604 | OUT EFI_USB_INTERFACE_DESCRIPTOR *Descriptor\r | |
605 | )\r | |
606 | {\r | |
607 | USB_INTERFACE *UsbIf;\r | |
608 | EFI_TPL OldTpl;\r | |
609 | \r | |
610 | if (Descriptor == NULL) {\r | |
611 | return EFI_INVALID_PARAMETER;\r | |
612 | }\r | |
613 | \r | |
614 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
615 | \r | |
616 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
617 | CopyMem (Descriptor, &(UsbIf->IfSetting->Desc), sizeof (EFI_USB_INTERFACE_DESCRIPTOR));\r | |
618 | \r | |
619 | gBS->RestoreTPL (OldTpl);\r | |
620 | return EFI_SUCCESS;\r | |
621 | }\r | |
622 | \r | |
623 | \r | |
624 | /**\r | |
8616fc4c | 625 | Retrieve the endpoint descriptor from this interface setting.\r |
e237e7ae | 626 | \r |
8616fc4c | 627 | @param This The USB IO instance.\r |
e237e7ae | 628 | @param Index The index (start from zero) of the endpoint to\r |
8616fc4c | 629 | retrieve.\r |
630 | @param Descriptor The variable to receive the descriptor.\r | |
e237e7ae | 631 | \r |
8616fc4c | 632 | @retval EFI_SUCCESS The endpoint descriptor is returned.\r |
633 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 634 | \r |
635 | **/\r | |
e237e7ae | 636 | EFI_STATUS\r |
637 | EFIAPI\r | |
638 | UsbIoGetEndpointDescriptor (\r | |
639 | IN EFI_USB_IO_PROTOCOL *This,\r | |
640 | IN UINT8 Index,\r | |
641 | OUT EFI_USB_ENDPOINT_DESCRIPTOR *Descriptor\r | |
642 | )\r | |
643 | {\r | |
644 | USB_INTERFACE *UsbIf;\r | |
645 | EFI_TPL OldTpl;\r | |
646 | \r | |
647 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
648 | \r | |
649 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
650 | \r | |
50fa1b3a | 651 | if ((Descriptor == NULL) || (Index > 15)) {\r |
e237e7ae | 652 | gBS->RestoreTPL (OldTpl);\r |
653 | return EFI_INVALID_PARAMETER;\r | |
654 | }\r | |
655 | \r | |
50fa1b3a | 656 | if (Index >= UsbIf->IfSetting->Desc.NumEndpoints) {\r |
657 | gBS->RestoreTPL (OldTpl);\r | |
658 | return EFI_NOT_FOUND;\r | |
659 | }\r | |
660 | \r | |
e237e7ae | 661 | CopyMem (\r |
662 | Descriptor,\r | |
663 | &(UsbIf->IfSetting->Endpoints[Index]->Desc),\r | |
664 | sizeof (EFI_USB_ENDPOINT_DESCRIPTOR)\r | |
665 | );\r | |
666 | \r | |
667 | gBS->RestoreTPL (OldTpl);\r | |
668 | return EFI_SUCCESS;\r | |
669 | }\r | |
670 | \r | |
671 | \r | |
672 | /**\r | |
8616fc4c | 673 | Retrieve the supported language ID table from the device.\r |
e237e7ae | 674 | \r |
8616fc4c | 675 | @param This The USB IO instance.\r |
676 | @param LangIDTable The table to return the language IDs.\r | |
84909ad4 | 677 | @param TableSize The size, in bytes, of the table LangIDTable.\r |
e237e7ae | 678 | \r |
8616fc4c | 679 | @retval EFI_SUCCESS The language ID is return.\r |
e237e7ae | 680 | \r |
681 | **/\r | |
e237e7ae | 682 | EFI_STATUS\r |
683 | EFIAPI\r | |
684 | UsbIoGetSupportedLanguages (\r | |
685 | IN EFI_USB_IO_PROTOCOL *This,\r | |
686 | OUT UINT16 **LangIDTable,\r | |
687 | OUT UINT16 *TableSize\r | |
688 | )\r | |
689 | {\r | |
690 | USB_DEVICE *Dev;\r | |
691 | USB_INTERFACE *UsbIf;\r | |
692 | EFI_TPL OldTpl;\r | |
693 | \r | |
694 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
695 | \r | |
696 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
697 | Dev = UsbIf->Device;\r | |
698 | \r | |
699 | *LangIDTable = Dev->LangId;\r | |
84909ad4 | 700 | *TableSize = (UINT16) (Dev->TotalLangId * sizeof (UINT16));\r |
e237e7ae | 701 | \r |
702 | gBS->RestoreTPL (OldTpl);\r | |
703 | return EFI_SUCCESS;\r | |
704 | }\r | |
705 | \r | |
706 | \r | |
707 | /**\r | |
8616fc4c | 708 | Retrieve an indexed string in the language of LangID.\r |
e237e7ae | 709 | \r |
8616fc4c | 710 | @param This The USB IO instance.\r |
711 | @param LangID The language ID of the string to retrieve.\r | |
712 | @param StringIndex The index of the string.\r | |
713 | @param String The variable to receive the string.\r | |
e237e7ae | 714 | \r |
8616fc4c | 715 | @retval EFI_SUCCESS The string is returned.\r |
716 | @retval EFI_NOT_FOUND No such string existed.\r | |
e237e7ae | 717 | \r |
718 | **/\r | |
e237e7ae | 719 | EFI_STATUS\r |
720 | EFIAPI\r | |
721 | UsbIoGetStringDescriptor (\r | |
722 | IN EFI_USB_IO_PROTOCOL *This,\r | |
723 | IN UINT16 LangID,\r | |
724 | IN UINT8 StringIndex,\r | |
725 | OUT CHAR16 **String\r | |
726 | )\r | |
727 | {\r | |
728 | USB_DEVICE *Dev;\r | |
729 | USB_INTERFACE *UsbIf;\r | |
730 | EFI_USB_STRING_DESCRIPTOR *StrDesc;\r | |
731 | EFI_TPL OldTpl;\r | |
732 | UINT8 *Buf;\r | |
733 | UINT8 Index;\r | |
734 | EFI_STATUS Status;\r | |
735 | \r | |
736 | if ((StringIndex == 0) || (LangID == 0)) {\r | |
737 | return EFI_NOT_FOUND;\r | |
738 | }\r | |
739 | \r | |
740 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
741 | \r | |
742 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
743 | Dev = UsbIf->Device;\r | |
744 | \r | |
745 | //\r | |
746 | // Check whether language ID is supported\r | |
747 | //\r | |
748 | Status = EFI_NOT_FOUND;\r | |
749 | \r | |
750 | for (Index = 0; Index < Dev->TotalLangId; Index++) {\r | |
a1b749d0 | 751 | ASSERT (Index < USB_MAX_LANG_ID);\r |
e237e7ae | 752 | if (Dev->LangId[Index] == LangID) {\r |
753 | break;\r | |
754 | }\r | |
755 | }\r | |
756 | \r | |
757 | if (Index == Dev->TotalLangId) {\r | |
758 | goto ON_EXIT;\r | |
759 | }\r | |
760 | \r | |
761 | //\r | |
762 | // Retrieve the string descriptor then allocate a buffer\r | |
763 | // to hold the string itself.\r | |
764 | //\r | |
765 | StrDesc = UsbGetOneString (Dev, StringIndex, LangID);\r | |
766 | \r | |
767 | if (StrDesc == NULL) {\r | |
768 | goto ON_EXIT;\r | |
769 | }\r | |
770 | \r | |
771 | if (StrDesc->Length <= 2) {\r | |
772 | goto FREE_STR;\r | |
773 | }\r | |
774 | \r | |
775 | Buf = AllocateZeroPool (StrDesc->Length);\r | |
776 | \r | |
777 | if (Buf == NULL) {\r | |
778 | Status = EFI_OUT_OF_RESOURCES;\r | |
779 | goto FREE_STR;\r | |
780 | }\r | |
781 | \r | |
782 | CopyMem (Buf, StrDesc->String, StrDesc->Length - 2);\r | |
783 | *String = (CHAR16 *) Buf;\r | |
784 | Status = EFI_SUCCESS;\r | |
785 | \r | |
786 | FREE_STR:\r | |
787 | gBS->FreePool (StrDesc);\r | |
788 | \r | |
789 | ON_EXIT:\r | |
790 | gBS->RestoreTPL (OldTpl);\r | |
791 | return Status;\r | |
792 | }\r | |
793 | \r | |
794 | \r | |
795 | /**\r | |
796 | Reset the device, then if that succeeds, reconfigure the\r | |
797 | device with its address and current active configuration.\r | |
798 | \r | |
8616fc4c | 799 | @param This The USB IO instance.\r |
e237e7ae | 800 | \r |
8616fc4c | 801 | @retval EFI_SUCCESS The device is reset and configured.\r |
802 | @retval Others Failed to reset the device.\r | |
e237e7ae | 803 | \r |
804 | **/\r | |
805 | EFI_STATUS\r | |
806 | EFIAPI\r | |
807 | UsbIoPortReset (\r | |
808 | IN EFI_USB_IO_PROTOCOL *This\r | |
809 | )\r | |
810 | {\r | |
811 | USB_INTERFACE *UsbIf;\r | |
812 | USB_INTERFACE *HubIf;\r | |
813 | USB_DEVICE *Dev;\r | |
e237e7ae | 814 | EFI_TPL OldTpl;\r |
815 | EFI_STATUS Status;\r | |
71619ac2 | 816 | UINT8 DevAddress;\r |
e237e7ae | 817 | \r |
818 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
819 | \r | |
820 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
821 | Dev = UsbIf->Device;\r | |
822 | \r | |
a92d4e8a | 823 | if (UsbIf->IsHub) {\r |
50fa1b3a | 824 | Status = EFI_INVALID_PARAMETER;\r |
825 | goto ON_EXIT;\r | |
826 | }\r | |
827 | \r | |
e237e7ae | 828 | HubIf = Dev->ParentIf;\r |
829 | Status = HubIf->HubApi->ResetPort (HubIf, Dev->ParentPort);\r | |
830 | \r | |
831 | if (EFI_ERROR (Status)) {\r | |
d2577026 | 832 | DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to reset hub port %d@hub %d, %r \n",\r |
e237e7ae | 833 | Dev->ParentPort, Dev->ParentAddr, Status));\r |
834 | \r | |
835 | goto ON_EXIT;\r | |
836 | }\r | |
837 | \r | |
71619ac2 | 838 | HubIf->HubApi->ClearPortChange (HubIf, Dev->ParentPort);\r |
839 | \r | |
e237e7ae | 840 | //\r |
c4b8c2d8 | 841 | // Reset the device to its current address. The device now has an address\r |
842 | // of ZERO after port reset, so need to set Dev->Address to the device again for\r | |
843 | // host to communicate with it.\r | |
e237e7ae | 844 | //\r |
71619ac2 | 845 | DevAddress = Dev->Address;\r |
846 | Dev->Address = 0;\r | |
847 | Status = UsbSetAddress (Dev, DevAddress);\r | |
848 | Dev->Address = DevAddress;\r | |
efe9186f | 849 | \r |
850 | gBS->Stall (USB_SET_DEVICE_ADDRESS_STALL);\r | |
7e388f85 | 851 | \r |
e237e7ae | 852 | if (EFI_ERROR (Status)) {\r |
c4b8c2d8 | 853 | //\r |
854 | // It may fail due to device disconnection or other reasons.\r | |
855 | //\r | |
d2577026 | 856 | DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to set address for device %d - %r\n",\r |
c4b8c2d8 | 857 | Dev->Address, Status));\r |
e237e7ae | 858 | \r |
859 | goto ON_EXIT;\r | |
860 | }\r | |
861 | \r | |
c4b8c2d8 | 862 | DEBUG (( EFI_D_INFO, "UsbIoPortReset: device is now ADDRESSED at %d\n", Dev->Address));\r |
e237e7ae | 863 | \r |
864 | //\r | |
865 | // Reset the current active configure, after this device\r | |
866 | // is in CONFIGURED state.\r | |
867 | //\r | |
868 | if (Dev->ActiveConfig != NULL) {\r | |
869 | Status = UsbSetConfig (Dev, Dev->ActiveConfig->Desc.ConfigurationValue);\r | |
870 | \r | |
871 | if (EFI_ERROR (Status)) {\r | |
d2577026 | 872 | DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to set configure for device %d - %r\n",\r |
c4b8c2d8 | 873 | Dev->Address, Status));\r |
e237e7ae | 874 | }\r |
875 | }\r | |
876 | \r | |
877 | ON_EXIT:\r | |
878 | gBS->RestoreTPL (OldTpl);\r | |
879 | return Status;\r | |
880 | }\r | |
881 | \r | |
ecb575d9 | 882 | \r |
883 | /**\r | |
8616fc4c | 884 | Install Usb Bus Protocol on host controller, and start the Usb bus.\r |
ecb575d9 | 885 | \r |
8616fc4c | 886 | @param This The USB bus driver binding instance.\r |
887 | @param Controller The controller to check.\r | |
888 | @param RemainingDevicePath The remaining device patch.\r | |
ecb575d9 | 889 | \r |
8616fc4c | 890 | @retval EFI_SUCCESS The controller is controlled by the usb bus.\r |
891 | @retval EFI_ALREADY_STARTED The controller is already controlled by the usb bus.\r | |
892 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
ecb575d9 | 893 | \r |
894 | **/\r | |
895 | EFI_STATUS\r | |
896 | EFIAPI\r | |
897 | UsbBusBuildProtocol (\r | |
898 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
899 | IN EFI_HANDLE Controller,\r | |
900 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
901 | )\r | |
902 | {\r | |
903 | USB_BUS *UsbBus;\r | |
904 | USB_DEVICE *RootHub;\r | |
905 | USB_INTERFACE *RootIf;\r | |
906 | EFI_STATUS Status;\r | |
907 | EFI_STATUS Status2;\r | |
908 | \r | |
909 | UsbBus = AllocateZeroPool (sizeof (USB_BUS));\r | |
910 | \r | |
911 | if (UsbBus == NULL) {\r | |
912 | return EFI_OUT_OF_RESOURCES;\r | |
913 | }\r | |
914 | \r | |
a9292c13 | 915 | UsbBus->Signature = USB_BUS_SIGNATURE;\r |
916 | UsbBus->HostHandle = Controller;\r | |
917 | UsbBus->MaxDevices = USB_MAX_DEVICES;\r | |
ecb575d9 | 918 | \r |
919 | Status = gBS->OpenProtocol (\r | |
920 | Controller,\r | |
921 | &gEfiDevicePathProtocolGuid,\r | |
922 | (VOID **) &UsbBus->DevicePath,\r | |
923 | This->DriverBindingHandle,\r | |
924 | Controller,\r | |
925 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
926 | );\r | |
927 | \r | |
928 | if (EFI_ERROR (Status)) {\r | |
929 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to open device path %r\n", Status));\r | |
930 | \r | |
d17371e8 | 931 | FreePool (UsbBus);\r |
ecb575d9 | 932 | return Status;\r |
933 | }\r | |
934 | \r | |
935 | //\r | |
936 | // Get USB_HC2/USB_HC host controller protocol (EHCI/UHCI).\r | |
d17371e8 | 937 | // This is for backward compatibility with EFI 1.x. In UEFI\r |
ecb575d9 | 938 | // 2.x, USB_HC2 replaces USB_HC. We will open both USB_HC2\r |
939 | // and USB_HC because EHCI driver will install both protocols\r | |
940 | // (for the same reason). If we don't consume both of them,\r | |
941 | // the unconsumed one may be opened by others.\r | |
942 | //\r | |
943 | Status = gBS->OpenProtocol (\r | |
944 | Controller,\r | |
945 | &gEfiUsb2HcProtocolGuid,\r | |
946 | (VOID **) &(UsbBus->Usb2Hc),\r | |
947 | This->DriverBindingHandle,\r | |
948 | Controller,\r | |
949 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
950 | );\r | |
951 | \r | |
952 | Status2 = gBS->OpenProtocol (\r | |
953 | Controller,\r | |
954 | &gEfiUsbHcProtocolGuid,\r | |
955 | (VOID **) &(UsbBus->UsbHc),\r | |
956 | This->DriverBindingHandle,\r | |
957 | Controller,\r | |
958 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
959 | );\r | |
960 | \r | |
961 | if (EFI_ERROR (Status) && EFI_ERROR (Status2)) {\r | |
962 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to open USB_HC/USB2_HC %r\n", Status));\r | |
963 | \r | |
964 | Status = EFI_DEVICE_ERROR;\r | |
965 | goto CLOSE_HC;\r | |
966 | }\r | |
967 | \r | |
92870c98 | 968 | if (!EFI_ERROR (Status)) {\r |
a9292c13 | 969 | //\r |
970 | // The EFI_USB2_HC_PROTOCOL is produced for XHCI support.\r | |
971 | // Then its max supported devices are 256. Otherwise it's 128.\r | |
972 | //\r | |
9bdcf582 | 973 | ASSERT (UsbBus->Usb2Hc != NULL);\r |
92870c98 | 974 | if (UsbBus->Usb2Hc->MajorRevision == 0x3) {\r |
a9292c13 | 975 | UsbBus->MaxDevices = 256;\r |
92870c98 | 976 | }\r |
977 | }\r | |
978 | \r | |
ecb575d9 | 979 | UsbHcReset (UsbBus, EFI_USB_HC_RESET_GLOBAL);\r |
980 | UsbHcSetState (UsbBus, EfiUsbHcStateOperational);\r | |
981 | \r | |
982 | //\r | |
d17371e8 | 983 | // Install an EFI_USB_BUS_PROTOCOL to host controller to identify it.\r |
ecb575d9 | 984 | //\r |
985 | Status = gBS->InstallProtocolInterface (\r | |
986 | &Controller,\r | |
c8ad2d7a | 987 | &gEfiCallerIdGuid,\r |
ecb575d9 | 988 | EFI_NATIVE_INTERFACE,\r |
989 | &UsbBus->BusId\r | |
990 | );\r | |
991 | \r | |
992 | if (EFI_ERROR (Status)) {\r | |
993 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to install bus protocol %r\n", Status));\r | |
994 | goto CLOSE_HC;\r | |
995 | }\r | |
996 | \r | |
997 | //\r | |
998 | // Initial the wanted child device path list, and add first RemainingDevicePath\r | |
999 | //\r | |
1000 | InitializeListHead (&UsbBus->WantedUsbIoDPList);\r | |
1001 | Status = UsbBusAddWantedUsbIoDP (&UsbBus->BusId, RemainingDevicePath);\r | |
1002 | ASSERT (!EFI_ERROR (Status));\r | |
1003 | //\r | |
1004 | // Create a fake usb device for root hub\r | |
1005 | //\r | |
1006 | RootHub = AllocateZeroPool (sizeof (USB_DEVICE));\r | |
1007 | \r | |
1008 | if (RootHub == NULL) {\r | |
1009 | Status = EFI_OUT_OF_RESOURCES;\r | |
1010 | goto UNINSTALL_USBBUS;\r | |
1011 | }\r | |
1012 | \r | |
1013 | RootIf = AllocateZeroPool (sizeof (USB_INTERFACE));\r | |
1014 | \r | |
1015 | if (RootIf == NULL) {\r | |
d17371e8 | 1016 | FreePool (RootHub);\r |
ecb575d9 | 1017 | Status = EFI_OUT_OF_RESOURCES;\r |
1018 | goto FREE_ROOTHUB;\r | |
1019 | }\r | |
1020 | \r | |
1021 | RootHub->Bus = UsbBus;\r | |
1022 | RootHub->NumOfInterface = 1;\r | |
1023 | RootHub->Interfaces[0] = RootIf;\r | |
92870c98 | 1024 | RootHub->Tier = 0;\r |
ecb575d9 | 1025 | RootIf->Signature = USB_INTERFACE_SIGNATURE;\r |
1026 | RootIf->Device = RootHub;\r | |
1027 | RootIf->DevicePath = UsbBus->DevicePath;\r | |
37623a5c | 1028 | \r |
1029 | //\r | |
1030 | // Report Status Code here since we will enumerate the USB devices\r | |
1031 | //\r | |
1032 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
1033 | EFI_PROGRESS_CODE,\r | |
1034 | (EFI_IO_BUS_USB | EFI_IOB_PC_DETECT),\r | |
1035 | UsbBus->DevicePath\r | |
1036 | );\r | |
1037 | \r | |
ecb575d9 | 1038 | Status = mUsbRootHubApi.Init (RootIf);\r |
1039 | \r | |
1040 | if (EFI_ERROR (Status)) {\r | |
1041 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to init root hub %r\n", Status));\r | |
1042 | goto FREE_ROOTHUB;\r | |
1043 | }\r | |
1044 | \r | |
1045 | UsbBus->Devices[0] = RootHub;\r | |
1046 | \r | |
0e549d5b | 1047 | DEBUG ((EFI_D_INFO, "UsbBusStart: usb bus started on %p, root hub %p\n", Controller, RootIf));\r |
ecb575d9 | 1048 | return EFI_SUCCESS;\r |
1049 | \r | |
1050 | FREE_ROOTHUB:\r | |
1051 | if (RootIf != NULL) {\r | |
d17371e8 | 1052 | FreePool (RootIf);\r |
ecb575d9 | 1053 | }\r |
1054 | if (RootHub != NULL) {\r | |
d17371e8 | 1055 | FreePool (RootHub);\r |
ecb575d9 | 1056 | }\r |
1057 | \r | |
1058 | UNINSTALL_USBBUS:\r | |
c8ad2d7a | 1059 | gBS->UninstallProtocolInterface (Controller, &gEfiCallerIdGuid, &UsbBus->BusId);\r |
ecb575d9 | 1060 | \r |
1061 | CLOSE_HC:\r | |
1062 | if (UsbBus->Usb2Hc != NULL) {\r | |
1063 | gBS->CloseProtocol (\r | |
1064 | Controller,\r | |
1065 | &gEfiUsb2HcProtocolGuid,\r | |
1066 | This->DriverBindingHandle,\r | |
1067 | Controller\r | |
1068 | );\r | |
1069 | }\r | |
1070 | if (UsbBus->UsbHc != NULL) {\r | |
1071 | gBS->CloseProtocol (\r | |
1072 | Controller,\r | |
1073 | &gEfiUsbHcProtocolGuid,\r | |
1074 | This->DriverBindingHandle,\r | |
1075 | Controller\r | |
1076 | );\r | |
1077 | }\r | |
1078 | gBS->CloseProtocol (\r | |
1079 | Controller,\r | |
1080 | &gEfiDevicePathProtocolGuid,\r | |
1081 | This->DriverBindingHandle,\r | |
1082 | Controller\r | |
1083 | );\r | |
d17371e8 | 1084 | FreePool (UsbBus);\r |
ecb575d9 | 1085 | \r |
1086 | DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to start bus driver %r\n", Status));\r | |
1087 | return Status;\r | |
1088 | }\r | |
1089 | \r | |
e237e7ae | 1090 | \r |
8616fc4c | 1091 | /**\r |
1092 | The USB bus driver entry pointer.\r | |
1093 | \r | |
1094 | @param ImageHandle The driver image handle.\r | |
1095 | @param SystemTable The system table.\r | |
1096 | \r | |
1097 | @return EFI_SUCCESS The component name protocol is installed.\r | |
1098 | @return Others Failed to init the usb driver.\r | |
1099 | \r | |
1100 | **/\r | |
e237e7ae | 1101 | EFI_STATUS\r |
1102 | EFIAPI\r | |
1103 | UsbBusDriverEntryPoint (\r | |
1104 | IN EFI_HANDLE ImageHandle,\r | |
1105 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1106 | )\r | |
e237e7ae | 1107 | {\r |
62b9bb55 | 1108 | return EfiLibInstallDriverBindingComponentName2 (\r |
e237e7ae | 1109 | ImageHandle,\r |
1110 | SystemTable,\r | |
1111 | &mUsbBusDriverBinding,\r | |
1112 | ImageHandle,\r | |
1113 | &mUsbBusComponentName,\r | |
62b9bb55 | 1114 | &mUsbBusComponentName2\r |
e237e7ae | 1115 | );\r |
1116 | }\r | |
1117 | \r | |
1118 | \r | |
1119 | /**\r | |
8616fc4c | 1120 | Check whether USB bus driver support this device.\r |
e237e7ae | 1121 | \r |
8616fc4c | 1122 | @param This The USB bus driver binding protocol.\r |
34a0bac4 | 1123 | @param Controller The controller handle to check.\r |
8616fc4c | 1124 | @param RemainingDevicePath The remaining device path.\r |
e237e7ae | 1125 | \r |
1126 | @retval EFI_SUCCESS The bus supports this controller.\r | |
8616fc4c | 1127 | @retval EFI_UNSUPPORTED This device isn't supported.\r |
e237e7ae | 1128 | \r |
1129 | **/\r | |
1130 | EFI_STATUS\r | |
1131 | EFIAPI\r | |
1132 | UsbBusControllerDriverSupported (\r | |
1133 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1134 | IN EFI_HANDLE Controller,\r | |
1135 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
1136 | )\r | |
1137 | {\r | |
1138 | EFI_DEV_PATH_PTR DevicePathNode;\r | |
1139 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
1140 | EFI_USB2_HC_PROTOCOL *Usb2Hc;\r | |
1141 | EFI_USB_HC_PROTOCOL *UsbHc;\r | |
1142 | EFI_STATUS Status;\r | |
1143 | \r | |
1144 | //\r | |
1145 | // Check whether device path is valid\r | |
1146 | //\r | |
1147 | if (RemainingDevicePath != NULL) {\r | |
af4a6385 | 1148 | //\r |
1149 | // Check if RemainingDevicePath is the End of Device Path Node, \r | |
1150 | // if yes, go on checking other conditions\r | |
1151 | //\r | |
1152 | if (!IsDevicePathEnd (RemainingDevicePath)) {\r | |
1153 | //\r | |
1154 | // If RemainingDevicePath isn't the End of Device Path Node,\r | |
1155 | // check its validation\r | |
1156 | //\r | |
1157 | DevicePathNode.DevPath = RemainingDevicePath;\r | |
1158 | \r | |
1159 | if ((DevicePathNode.DevPath->Type != MESSAGING_DEVICE_PATH) ||\r | |
1160 | (DevicePathNode.DevPath->SubType != MSG_USB_DP &&\r | |
1161 | DevicePathNode.DevPath->SubType != MSG_USB_CLASS_DP\r | |
1162 | && DevicePathNode.DevPath->SubType != MSG_USB_WWID_DP\r | |
1163 | )) {\r | |
1164 | \r | |
1165 | return EFI_UNSUPPORTED;\r | |
1166 | }\r | |
e237e7ae | 1167 | }\r |
1168 | }\r | |
1169 | \r | |
e237e7ae | 1170 | //\r |
1171 | // Check whether USB_HC2 protocol is installed\r | |
1172 | //\r | |
1173 | Status = gBS->OpenProtocol (\r | |
1174 | Controller,\r | |
1175 | &gEfiUsb2HcProtocolGuid,\r | |
1176 | (VOID **) &Usb2Hc,\r | |
1177 | This->DriverBindingHandle,\r | |
1178 | Controller,\r | |
1179 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1180 | );\r | |
e237e7ae | 1181 | if (Status == EFI_ALREADY_STARTED) {\r |
1182 | return EFI_SUCCESS;\r | |
1183 | }\r | |
1184 | \r | |
af4a6385 | 1185 | if (EFI_ERROR (Status)) {\r |
1186 | //\r | |
1187 | // If failed to open USB_HC2, fall back to USB_HC\r | |
1188 | //\r | |
1189 | Status = gBS->OpenProtocol (\r | |
1190 | Controller,\r | |
1191 | &gEfiUsbHcProtocolGuid,\r | |
1192 | (VOID **) &UsbHc,\r | |
1193 | This->DriverBindingHandle,\r | |
1194 | Controller,\r | |
1195 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1196 | );\r | |
1197 | if (Status == EFI_ALREADY_STARTED) {\r | |
1198 | return EFI_SUCCESS;\r | |
1199 | }\r | |
1200 | \r | |
1201 | if (EFI_ERROR (Status)) {\r | |
1202 | return Status;\r | |
1203 | }\r | |
1204 | \r | |
1205 | //\r | |
1206 | // Close the USB_HC used to perform the supported test\r | |
1207 | //\r | |
e237e7ae | 1208 | gBS->CloseProtocol (\r |
1209 | Controller,\r | |
af4a6385 | 1210 | &gEfiUsbHcProtocolGuid,\r |
e237e7ae | 1211 | This->DriverBindingHandle,\r |
1212 | Controller\r | |
1213 | );\r | |
1214 | \r | |
af4a6385 | 1215 | } else {\r |
e237e7ae | 1216 | \r |
af4a6385 | 1217 | //\r |
1218 | // Close the USB_HC2 used to perform the supported test\r | |
1219 | //\r | |
1220 | gBS->CloseProtocol (\r | |
1221 | Controller,\r | |
1222 | &gEfiUsb2HcProtocolGuid,\r | |
1223 | This->DriverBindingHandle,\r | |
1224 | Controller\r | |
1225 | );\r | |
1226 | }\r | |
1227 | \r | |
e237e7ae | 1228 | //\r |
af4a6385 | 1229 | // Open the EFI Device Path protocol needed to perform the supported test\r |
e237e7ae | 1230 | //\r |
1231 | Status = gBS->OpenProtocol (\r | |
1232 | Controller,\r | |
af4a6385 | 1233 | &gEfiDevicePathProtocolGuid,\r |
1234 | (VOID **) &ParentDevicePath,\r | |
e237e7ae | 1235 | This->DriverBindingHandle,\r |
1236 | Controller,\r | |
1237 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1238 | );\r | |
e237e7ae | 1239 | if (Status == EFI_ALREADY_STARTED) {\r |
1240 | return EFI_SUCCESS;\r | |
1241 | }\r | |
1242 | \r | |
1243 | if (!EFI_ERROR (Status)) {\r | |
af4a6385 | 1244 | //\r |
1245 | // Close protocol, don't use device path protocol in the Support() function\r | |
1246 | //\r | |
e237e7ae | 1247 | gBS->CloseProtocol (\r |
1248 | Controller,\r | |
af4a6385 | 1249 | &gEfiDevicePathProtocolGuid,\r |
e237e7ae | 1250 | This->DriverBindingHandle,\r |
1251 | Controller\r | |
1252 | );\r | |
af4a6385 | 1253 | \r |
1254 | return EFI_SUCCESS;\r | |
e237e7ae | 1255 | }\r |
1256 | \r | |
1257 | return Status;\r | |
1258 | }\r | |
1259 | \r | |
1260 | \r | |
1261 | /**\r | |
8616fc4c | 1262 | Start to process the controller.\r |
e237e7ae | 1263 | \r |
8616fc4c | 1264 | @param This The USB bus driver binding instance.\r |
1265 | @param Controller The controller to check.\r | |
1266 | @param RemainingDevicePath The remaining device patch.\r | |
e237e7ae | 1267 | \r |
8616fc4c | 1268 | @retval EFI_SUCCESS The controller is controlled by the usb bus.\r |
e237e7ae | 1269 | @retval EFI_ALREADY_STARTED The controller is already controlled by the usb\r |
8616fc4c | 1270 | bus.\r |
1271 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
e237e7ae | 1272 | \r |
1273 | **/\r | |
1274 | EFI_STATUS\r | |
1275 | EFIAPI\r | |
1276 | UsbBusControllerDriverStart (\r | |
1277 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1278 | IN EFI_HANDLE Controller,\r | |
1279 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
1280 | )\r | |
1281 | {\r | |
ecb575d9 | 1282 | EFI_USB_BUS_PROTOCOL *UsbBusId;\r |
1283 | EFI_STATUS Status;\r | |
37623a5c | 1284 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r |
1285 | \r | |
1286 | Status = gBS->OpenProtocol (\r | |
1287 | Controller,\r | |
1288 | &gEfiDevicePathProtocolGuid,\r | |
1289 | (VOID **) &ParentDevicePath,\r | |
1290 | This->DriverBindingHandle,\r | |
1291 | Controller,\r | |
1292 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1293 | );\r | |
1294 | ASSERT_EFI_ERROR (Status);\r | |
1295 | \r | |
1296 | //\r | |
1297 | // Report Status Code here since we will initialize the host controller\r | |
1298 | //\r | |
1299 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
1300 | EFI_PROGRESS_CODE,\r | |
1301 | (EFI_IO_BUS_USB | EFI_IOB_PC_INIT),\r | |
1302 | ParentDevicePath\r | |
1303 | );\r | |
e237e7ae | 1304 | \r |
1305 | //\r | |
1306 | // Locate the USB bus protocol, if it is found, USB bus\r | |
1307 | // is already started on this controller.\r | |
1308 | //\r | |
1309 | Status = gBS->OpenProtocol (\r | |
1310 | Controller,\r | |
c8ad2d7a | 1311 | &gEfiCallerIdGuid,\r |
e237e7ae | 1312 | (VOID **) &UsbBusId,\r |
1313 | This->DriverBindingHandle,\r | |
1314 | Controller,\r | |
1315 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1316 | );\r | |
1317 | \r | |
e237e7ae | 1318 | if (EFI_ERROR (Status)) {\r |
ecb575d9 | 1319 | //\r |
d17371e8 | 1320 | // If first start, build the bus execute environment and install bus protocol\r |
ecb575d9 | 1321 | //\r |
3d0a2385 | 1322 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_IO_BUS_USB | EFI_P_PC_ENABLE));\r |
ecb575d9 | 1323 | Status = UsbBusBuildProtocol (This, Controller, RemainingDevicePath);\r |
1324 | if (EFI_ERROR (Status)) {\r | |
1325 | return Status;\r | |
1326 | }\r | |
1327 | //\r | |
1328 | // Try get the Usb Bus protocol interface again\r | |
1329 | //\r | |
1330 | Status = gBS->OpenProtocol (\r | |
1331 | Controller,\r | |
c8ad2d7a | 1332 | &gEfiCallerIdGuid,\r |
ecb575d9 | 1333 | (VOID **) &UsbBusId,\r |
1334 | This->DriverBindingHandle,\r | |
1335 | Controller,\r | |
1336 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1337 | );\r | |
1338 | ASSERT (!EFI_ERROR (Status));\r | |
1339 | } else {\r | |
1340 | //\r | |
1341 | // USB Bus driver need to control the recursive connect policy of the bus, only those wanted\r | |
1342 | // usb child device will be recursively connected.\r | |
1343 | // The RemainingDevicePath indicate the child usb device which user want to fully recursively connecte this time.\r | |
1344 | // All wanted usb child devices will be remembered by the usb bus driver itself.\r | |
1345 | // If RemainingDevicePath == NULL, all the usb child devices in the usb bus are wanted devices.\r | |
1346 | //\r | |
1347 | // Save the passed in RemainingDevicePath this time\r | |
1348 | //\r | |
af4a6385 | 1349 | if (RemainingDevicePath != NULL) {\r |
1350 | if (IsDevicePathEnd (RemainingDevicePath)) {\r | |
1351 | //\r | |
1352 | // If RemainingDevicePath is the End of Device Path Node,\r | |
1353 | // skip enumerate any device and return EFI_SUCESSS\r | |
1354 | // \r | |
1355 | return EFI_SUCCESS;\r | |
1356 | }\r | |
1357 | }\r | |
1358 | \r | |
ecb575d9 | 1359 | Status = UsbBusAddWantedUsbIoDP (UsbBusId, RemainingDevicePath);\r |
1360 | ASSERT (!EFI_ERROR (Status));\r | |
1361 | //\r | |
1362 | // Ensure all wanted child usb devices are fully recursively connected\r | |
1363 | //\r | |
1364 | Status = UsbBusRecursivelyConnectWantedUsbIo (UsbBusId);\r | |
1365 | ASSERT (!EFI_ERROR (Status));\r | |
e237e7ae | 1366 | }\r |
1367 | \r | |
e237e7ae | 1368 | \r |
e237e7ae | 1369 | return EFI_SUCCESS;\r |
e237e7ae | 1370 | }\r |
1371 | \r | |
1372 | \r | |
1373 | /**\r | |
8616fc4c | 1374 | Stop handle the controller by this USB bus driver.\r |
e237e7ae | 1375 | \r |
8616fc4c | 1376 | @param This The USB bus driver binding protocol.\r |
1377 | @param Controller The controller to release.\r | |
e237e7ae | 1378 | @param NumberOfChildren The child of USB bus that opened controller\r |
8616fc4c | 1379 | BY_CHILD.\r |
1380 | @param ChildHandleBuffer The array of child handle.\r | |
e237e7ae | 1381 | \r |
8616fc4c | 1382 | @retval EFI_SUCCESS The controller or children are stopped.\r |
1383 | @retval EFI_DEVICE_ERROR Failed to stop the driver.\r | |
e237e7ae | 1384 | \r |
1385 | **/\r | |
1386 | EFI_STATUS\r | |
1387 | EFIAPI\r | |
1388 | UsbBusControllerDriverStop (\r | |
1389 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1390 | IN EFI_HANDLE Controller,\r | |
1391 | IN UINTN NumberOfChildren,\r | |
1392 | IN EFI_HANDLE *ChildHandleBuffer\r | |
1393 | )\r | |
1394 | {\r | |
1395 | USB_BUS *Bus;\r | |
1396 | USB_DEVICE *RootHub;\r | |
1397 | USB_DEVICE *UsbDev;\r | |
1398 | USB_INTERFACE *RootIf;\r | |
1399 | USB_INTERFACE *UsbIf;\r | |
1400 | EFI_USB_BUS_PROTOCOL *BusId;\r | |
1401 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
1402 | EFI_TPL OldTpl;\r | |
1403 | UINTN Index;\r | |
1404 | EFI_STATUS Status;\r | |
1405 | \r | |
1406 | Status = EFI_SUCCESS;\r | |
1407 | \r | |
1408 | if (NumberOfChildren > 0) {\r | |
ecb575d9 | 1409 | //\r |
1410 | // BugBug: Raise TPL to callback level instead of USB_BUS_TPL to avoid TPL conflict\r | |
1411 | //\r | |
1412 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
e237e7ae | 1413 | \r |
1414 | for (Index = 0; Index < NumberOfChildren; Index++) {\r | |
1415 | Status = gBS->OpenProtocol (\r | |
1416 | ChildHandleBuffer[Index],\r | |
1417 | &gEfiUsbIoProtocolGuid,\r | |
1418 | (VOID **) &UsbIo,\r | |
1419 | This->DriverBindingHandle,\r | |
1420 | Controller,\r | |
1421 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1422 | );\r | |
1423 | \r | |
1424 | if (EFI_ERROR (Status)) {\r | |
1425 | //\r | |
1426 | // It is possible that the child has already been released:\r | |
1427 | // 1. For combo device, free one device will release others.\r | |
1428 | // 2. If a hub is released, all devices on its down facing\r | |
1429 | // ports are released also.\r | |
1430 | //\r | |
1431 | continue;\r | |
1432 | }\r | |
1433 | \r | |
1434 | UsbIf = USB_INTERFACE_FROM_USBIO (UsbIo);\r | |
1435 | UsbDev = UsbIf->Device;\r | |
1436 | \r | |
1437 | UsbRemoveDevice (UsbDev);\r | |
1438 | }\r | |
1439 | \r | |
1440 | gBS->RestoreTPL (OldTpl);\r | |
1441 | return EFI_SUCCESS;\r | |
1442 | }\r | |
1443 | \r | |
0e549d5b | 1444 | DEBUG (( EFI_D_INFO, "UsbBusStop: usb bus stopped on %p\n", Controller));\r |
e237e7ae | 1445 | \r |
1446 | //\r | |
1447 | // Locate USB_BUS for the current host controller\r | |
1448 | //\r | |
1449 | Status = gBS->OpenProtocol (\r | |
1450 | Controller,\r | |
c8ad2d7a | 1451 | &gEfiCallerIdGuid,\r |
e237e7ae | 1452 | (VOID **) &BusId,\r |
1453 | This->DriverBindingHandle,\r | |
1454 | Controller,\r | |
1455 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1456 | );\r | |
1457 | \r | |
1458 | if (EFI_ERROR (Status)) {\r | |
1459 | return Status;\r | |
1460 | }\r | |
1461 | \r | |
1462 | Bus = USB_BUS_FROM_THIS (BusId);\r | |
1463 | \r | |
1464 | //\r | |
1465 | // Stop the root hub, then free all the devices\r | |
1466 | //\r | |
ecb575d9 | 1467 | // BugBug: Raise TPL to callback level instead of USB_BUS_TPL to avoid TPL conflict\r |
1468 | //\r | |
1469 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
e237e7ae | 1470 | \r |
1471 | RootHub = Bus->Devices[0];\r | |
1472 | RootIf = RootHub->Interfaces[0];\r | |
1473 | \r | |
1474 | mUsbRootHubApi.Release (RootIf);\r | |
1475 | \r | |
a9292c13 | 1476 | ASSERT (Bus->MaxDevices <= 256);\r |
1477 | for (Index = 1; Index < Bus->MaxDevices; Index++) {\r | |
e237e7ae | 1478 | if (Bus->Devices[Index] != NULL) {\r |
1479 | UsbRemoveDevice (Bus->Devices[Index]);\r | |
1480 | }\r | |
1481 | }\r | |
1482 | \r | |
1483 | gBS->RestoreTPL (OldTpl);\r | |
1484 | \r | |
1485 | gBS->FreePool (RootIf);\r | |
1486 | gBS->FreePool (RootHub);\r | |
ecb575d9 | 1487 | Status = UsbBusFreeUsbDPList (&Bus->WantedUsbIoDPList);\r |
1488 | ASSERT (!EFI_ERROR (Status));\r | |
e237e7ae | 1489 | \r |
1490 | //\r | |
1491 | // Uninstall the bus identifier and close USB_HC/USB2_HC protocols\r | |
1492 | //\r | |
c8ad2d7a | 1493 | gBS->UninstallProtocolInterface (Controller, &gEfiCallerIdGuid, &Bus->BusId);\r |
e237e7ae | 1494 | \r |
1495 | if (Bus->Usb2Hc != NULL) {\r | |
1496 | gBS->CloseProtocol (\r | |
1497 | Controller,\r | |
1498 | &gEfiUsb2HcProtocolGuid,\r | |
1499 | This->DriverBindingHandle,\r | |
1500 | Controller\r | |
1501 | );\r | |
1502 | }\r | |
1503 | \r | |
1504 | if (Bus->UsbHc != NULL) {\r | |
1505 | gBS->CloseProtocol (\r | |
1506 | Controller,\r | |
1507 | &gEfiUsbHcProtocolGuid,\r | |
1508 | This->DriverBindingHandle,\r | |
1509 | Controller\r | |
1510 | );\r | |
1511 | }\r | |
1512 | \r | |
1513 | gBS->CloseProtocol (\r | |
1514 | Controller,\r | |
1515 | &gEfiDevicePathProtocolGuid,\r | |
1516 | This->DriverBindingHandle,\r | |
1517 | Controller\r | |
1518 | );\r | |
1519 | \r | |
1520 | gBS->FreePool (Bus);\r | |
1521 | \r | |
1522 | return Status;\r | |
1523 | }\r |