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e237e7ae | 1 | /** @file\r |
2 | \r | |
8616fc4c | 3 | Usb Bus Driver Binding and Bus IO Protocol.\r |
4 | \r | |
d1102dba | 5 | Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
e237e7ae | 7 | \r |
e237e7ae | 8 | **/\r |
9 | \r | |
10 | #include "UsbBus.h"\r | |
11 | \r | |
aa79b0b3 | 12 | EFI_USB_IO_PROTOCOL mUsbIoProtocol = {\r |
13 | UsbIoControlTransfer,\r | |
14 | UsbIoBulkTransfer,\r | |
15 | UsbIoAsyncInterruptTransfer,\r | |
16 | UsbIoSyncInterruptTransfer,\r | |
17 | UsbIoIsochronousTransfer,\r | |
18 | UsbIoAsyncIsochronousTransfer,\r | |
19 | UsbIoGetDeviceDescriptor,\r | |
20 | UsbIoGetActiveConfigDescriptor,\r | |
21 | UsbIoGetInterfaceDescriptor,\r | |
22 | UsbIoGetEndpointDescriptor,\r | |
23 | UsbIoGetStringDescriptor,\r | |
24 | UsbIoGetSupportedLanguages,\r | |
25 | UsbIoPortReset\r | |
26 | };\r | |
27 | \r | |
28 | EFI_DRIVER_BINDING_PROTOCOL mUsbBusDriverBinding = {\r | |
29 | UsbBusControllerDriverSupported,\r | |
30 | UsbBusControllerDriverStart,\r | |
31 | UsbBusControllerDriverStop,\r | |
32 | 0xa,\r | |
33 | NULL,\r | |
34 | NULL\r | |
35 | };\r | |
36 | \r | |
e237e7ae | 37 | /**\r |
38 | USB_IO function to execute a control transfer. This\r | |
39 | function will execute the USB transfer. If transfer\r | |
40 | successes, it will sync the internal state of USB bus\r | |
41 | with device state.\r | |
42 | \r | |
43 | @param This The USB_IO instance\r | |
44 | @param Request The control transfer request\r | |
45 | @param Direction Direction for data stage\r | |
46 | @param Timeout The time to wait before timeout\r | |
47 | @param Data The buffer holding the data\r | |
48 | @param DataLength Then length of the data\r | |
49 | @param UsbStatus USB result\r | |
50 | \r | |
51 | @retval EFI_INVALID_PARAMETER The parameters are invalid\r | |
d17371e8 | 52 | @retval EFI_SUCCESS The control transfer succeeded.\r |
e237e7ae | 53 | @retval Others Failed to execute the transfer\r |
54 | \r | |
55 | **/\r | |
e237e7ae | 56 | EFI_STATUS\r |
57 | EFIAPI\r | |
58 | UsbIoControlTransfer (\r | |
59 | IN EFI_USB_IO_PROTOCOL *This,\r | |
60 | IN EFI_USB_DEVICE_REQUEST *Request,\r | |
61 | IN EFI_USB_DATA_DIRECTION Direction,\r | |
62 | IN UINT32 Timeout,\r | |
63 | IN OUT VOID *Data, OPTIONAL\r | |
64 | IN UINTN DataLength, OPTIONAL\r | |
65 | OUT UINT32 *UsbStatus\r | |
66 | )\r | |
67 | {\r | |
68 | USB_DEVICE *Dev;\r | |
69 | USB_INTERFACE *UsbIf;\r | |
70 | USB_ENDPOINT_DESC *EpDesc;\r | |
71 | EFI_TPL OldTpl;\r | |
72 | EFI_STATUS Status;\r | |
b4e96b82 | 73 | UINTN RequestedDataLength;\r |
e237e7ae | 74 | \r |
75 | if (UsbStatus == NULL) {\r | |
76 | return EFI_INVALID_PARAMETER;\r | |
77 | }\r | |
78 | \r | |
79 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
80 | \r | |
81 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
82 | Dev = UsbIf->Device;\r | |
83 | \r | |
b4e96b82 | 84 | RequestedDataLength = DataLength;\r |
e237e7ae | 85 | Status = UsbHcControlTransfer (\r |
86 | Dev->Bus,\r | |
87 | Dev->Address,\r | |
88 | Dev->Speed,\r | |
89 | Dev->MaxPacket0,\r | |
90 | Request,\r | |
91 | Direction,\r | |
92 | Data,\r | |
93 | &DataLength,\r | |
94 | (UINTN) Timeout,\r | |
95 | &Dev->Translator,\r | |
96 | UsbStatus\r | |
97 | );\r | |
b4e96b82 | 98 | //\r |
13a623cf | 99 | // If the request completed successfully and the Direction of the request is\r |
b4e96b82 | 100 | // EfiUsbDataIn or EfiUsbDataOut, then make sure the actual number of bytes\r |
13a623cf AC |
101 | // transferred is the same as the number of bytes requested. If a different\r |
102 | // number of bytes were transferred, then return EFI_DEVICE_ERROR.\r | |
b4e96b82 MK |
103 | //\r |
104 | if (!EFI_ERROR (Status)) {\r | |
105 | if (Direction != EfiUsbNoData && DataLength != RequestedDataLength) {\r | |
106 | Status = EFI_DEVICE_ERROR;\r | |
107 | goto ON_EXIT;\r | |
108 | }\r | |
109 | }\r | |
e237e7ae | 110 | \r |
111 | if (EFI_ERROR (Status) || (*UsbStatus != EFI_USB_NOERROR)) {\r | |
112 | //\r | |
113 | // Clear TT buffer when CTRL/BULK split transaction failes\r | |
114 | // Clear the TRANSLATOR TT buffer, not parent's buffer\r | |
115 | //\r | |
a9292c13 | 116 | ASSERT (Dev->Translator.TranslatorHubAddress < Dev->Bus->MaxDevices);\r |
e237e7ae | 117 | if (Dev->Translator.TranslatorHubAddress != 0) {\r |
118 | UsbHubCtrlClearTTBuffer (\r | |
119 | Dev->Bus->Devices[Dev->Translator.TranslatorHubAddress],\r | |
120 | Dev->Translator.TranslatorPortNumber,\r | |
121 | Dev->Address,\r | |
122 | 0,\r | |
123 | USB_ENDPOINT_CONTROL\r | |
124 | );\r | |
125 | }\r | |
126 | \r | |
127 | goto ON_EXIT;\r | |
128 | }\r | |
129 | \r | |
130 | //\r | |
131 | // Some control transfer will change the device's internal\r | |
132 | // status, such as Set_Configuration and Set_Interface.\r | |
133 | // We must synchronize the bus driver's status with that in\r | |
134 | // device. We ignore the Set_Descriptor request because it's\r | |
135 | // hardly used by any device, especially in pre-boot environment\r | |
136 | //\r | |
137 | \r | |
138 | //\r | |
139 | // Reset the endpoint toggle when endpoint stall is cleared\r | |
140 | //\r | |
141 | if ((Request->Request == USB_REQ_CLEAR_FEATURE) &&\r | |
142 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
143 | USB_TARGET_ENDPOINT)) &&\r | |
144 | (Request->Value == USB_FEATURE_ENDPOINT_HALT)) {\r | |
145 | \r | |
146 | EpDesc = UsbGetEndpointDesc (UsbIf, (UINT8) Request->Index);\r | |
147 | \r | |
148 | if (EpDesc != NULL) {\r | |
149 | EpDesc->Toggle = 0;\r | |
150 | }\r | |
151 | }\r | |
152 | \r | |
153 | //\r | |
154 | // Select a new configuration. This is a dangerous action. Upper driver\r | |
155 | // should stop use its current UsbIo after calling this driver. The old\r | |
156 | // UsbIo will be uninstalled and new UsbIo be installed. We can't use\r | |
157 | // ReinstallProtocol since interfaces in different configuration may be\r | |
d17371e8 | 158 | // completely irrelevant.\r |
e237e7ae | 159 | //\r |
160 | if ((Request->Request == USB_REQ_SET_CONFIG) &&\r | |
161 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
162 | USB_TARGET_DEVICE))) {\r | |
163 | //\r | |
164 | // Don't re-create the USB interfaces if configuration isn't changed.\r | |
165 | //\r | |
166 | if ((Dev->ActiveConfig != NULL) &&\r | |
167 | (Request->Value == Dev->ActiveConfig->Desc.ConfigurationValue)) {\r | |
168 | \r | |
169 | goto ON_EXIT;\r | |
170 | }\r | |
87000d77 | 171 | DEBUG ((DEBUG_INFO, "UsbIoControlTransfer: configure changed!!! Do NOT use old UsbIo!!!\n"));\r |
e237e7ae | 172 | \r |
173 | if (Dev->ActiveConfig != NULL) {\r | |
174 | UsbRemoveConfig (Dev);\r | |
175 | }\r | |
176 | \r | |
177 | if (Request->Value != 0) {\r | |
178 | Status = UsbSelectConfig (Dev, (UINT8) Request->Value);\r | |
179 | }\r | |
180 | \r | |
181 | //\r | |
182 | // Exit now, Old USB_IO is invalid now\r | |
183 | //\r | |
184 | goto ON_EXIT;\r | |
185 | }\r | |
186 | \r | |
187 | //\r | |
188 | // A new alternative setting is selected for the interface.\r | |
189 | // No need to reinstall UsbIo in this case because only\r | |
190 | // underlying communication endpoints are changed. Functionality\r | |
191 | // should remains the same.\r | |
192 | //\r | |
193 | if ((Request->Request == USB_REQ_SET_INTERFACE) &&\r | |
194 | (Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,\r | |
195 | USB_TARGET_INTERFACE)) &&\r | |
196 | (Request->Index == UsbIf->IfSetting->Desc.InterfaceNumber)) {\r | |
197 | \r | |
198 | Status = UsbSelectSetting (UsbIf->IfDesc, (UINT8) Request->Value);\r | |
199 | \r | |
200 | if (!EFI_ERROR (Status)) {\r | |
a1b749d0 | 201 | ASSERT (UsbIf->IfDesc->ActiveIndex < USB_MAX_INTERFACE_SETTING);\r |
e237e7ae | 202 | UsbIf->IfSetting = UsbIf->IfDesc->Settings[UsbIf->IfDesc->ActiveIndex];\r |
203 | }\r | |
204 | }\r | |
205 | \r | |
206 | ON_EXIT:\r | |
207 | gBS->RestoreTPL (OldTpl);\r | |
208 | return Status;\r | |
209 | }\r | |
210 | \r | |
211 | \r | |
212 | /**\r | |
8616fc4c | 213 | Execute a bulk transfer to the device endpoint.\r |
e237e7ae | 214 | \r |
8616fc4c | 215 | @param This The USB IO instance.\r |
216 | @param Endpoint The device endpoint.\r | |
217 | @param Data The data to transfer.\r | |
218 | @param DataLength The length of the data to transfer.\r | |
219 | @param Timeout Time to wait before timeout.\r | |
220 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 221 | \r |
8616fc4c | 222 | @retval EFI_SUCCESS The bulk transfer is OK.\r |
223 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 224 | @retval Others Failed to execute transfer, reason returned in\r |
8616fc4c | 225 | UsbStatus.\r |
e237e7ae | 226 | \r |
227 | **/\r | |
e237e7ae | 228 | EFI_STATUS\r |
229 | EFIAPI\r | |
230 | UsbIoBulkTransfer (\r | |
231 | IN EFI_USB_IO_PROTOCOL *This,\r | |
232 | IN UINT8 Endpoint,\r | |
233 | IN OUT VOID *Data,\r | |
234 | IN OUT UINTN *DataLength,\r | |
235 | IN UINTN Timeout,\r | |
236 | OUT UINT32 *UsbStatus\r | |
237 | )\r | |
238 | {\r | |
239 | USB_DEVICE *Dev;\r | |
240 | USB_INTERFACE *UsbIf;\r | |
241 | USB_ENDPOINT_DESC *EpDesc;\r | |
242 | UINT8 BufNum;\r | |
243 | UINT8 Toggle;\r | |
244 | EFI_TPL OldTpl;\r | |
245 | EFI_STATUS Status;\r | |
246 | \r | |
247 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR(Endpoint) > 15) ||\r | |
248 | (UsbStatus == NULL)) {\r | |
249 | \r | |
250 | return EFI_INVALID_PARAMETER;\r | |
251 | }\r | |
252 | \r | |
253 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
254 | \r | |
255 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
256 | Dev = UsbIf->Device;\r | |
257 | \r | |
258 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
259 | \r | |
260 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_BULK)) {\r | |
261 | Status = EFI_INVALID_PARAMETER;\r | |
262 | goto ON_EXIT;\r | |
263 | }\r | |
264 | \r | |
265 | BufNum = 1;\r | |
266 | Toggle = EpDesc->Toggle;\r | |
267 | Status = UsbHcBulkTransfer (\r | |
268 | Dev->Bus,\r | |
269 | Dev->Address,\r | |
270 | Endpoint,\r | |
271 | Dev->Speed,\r | |
272 | EpDesc->Desc.MaxPacketSize,\r | |
273 | BufNum,\r | |
274 | &Data,\r | |
275 | DataLength,\r | |
276 | &Toggle,\r | |
277 | Timeout,\r | |
278 | &Dev->Translator,\r | |
279 | UsbStatus\r | |
280 | );\r | |
281 | \r | |
282 | EpDesc->Toggle = Toggle;\r | |
283 | \r | |
284 | if (EFI_ERROR (Status) || (*UsbStatus != EFI_USB_NOERROR)) {\r | |
285 | //\r | |
286 | // Clear TT buffer when CTRL/BULK split transaction failes.\r | |
287 | // Clear the TRANSLATOR TT buffer, not parent's buffer\r | |
288 | //\r | |
a9292c13 | 289 | ASSERT (Dev->Translator.TranslatorHubAddress < Dev->Bus->MaxDevices);\r |
e237e7ae | 290 | if (Dev->Translator.TranslatorHubAddress != 0) {\r |
291 | UsbHubCtrlClearTTBuffer (\r | |
292 | Dev->Bus->Devices[Dev->Translator.TranslatorHubAddress],\r | |
293 | Dev->Translator.TranslatorPortNumber,\r | |
294 | Dev->Address,\r | |
295 | 0,\r | |
296 | USB_ENDPOINT_BULK\r | |
297 | );\r | |
298 | }\r | |
299 | }\r | |
300 | \r | |
301 | ON_EXIT:\r | |
302 | gBS->RestoreTPL (OldTpl);\r | |
303 | return Status;\r | |
304 | }\r | |
305 | \r | |
306 | \r | |
307 | /**\r | |
8616fc4c | 308 | Execute a synchronous interrupt transfer.\r |
e237e7ae | 309 | \r |
8616fc4c | 310 | @param This The USB IO instance.\r |
311 | @param Endpoint The device endpoint.\r | |
312 | @param Data The data to transfer.\r | |
313 | @param DataLength The length of the data to transfer.\r | |
314 | @param Timeout Time to wait before timeout.\r | |
315 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 316 | \r |
8616fc4c | 317 | @retval EFI_SUCCESS The synchronous interrupt transfer is OK.\r |
318 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 319 | @retval Others Failed to execute transfer, reason returned in\r |
8616fc4c | 320 | UsbStatus.\r |
e237e7ae | 321 | \r |
322 | **/\r | |
e237e7ae | 323 | EFI_STATUS\r |
324 | EFIAPI\r | |
325 | UsbIoSyncInterruptTransfer (\r | |
326 | IN EFI_USB_IO_PROTOCOL *This,\r | |
327 | IN UINT8 Endpoint,\r | |
328 | IN OUT VOID *Data,\r | |
329 | IN OUT UINTN *DataLength,\r | |
330 | IN UINTN Timeout,\r | |
331 | OUT UINT32 *UsbStatus\r | |
332 | )\r | |
333 | {\r | |
334 | USB_DEVICE *Dev;\r | |
335 | USB_INTERFACE *UsbIf;\r | |
336 | USB_ENDPOINT_DESC *EpDesc;\r | |
337 | EFI_TPL OldTpl;\r | |
338 | UINT8 Toggle;\r | |
339 | EFI_STATUS Status;\r | |
340 | \r | |
341 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR(Endpoint) > 15) ||\r | |
342 | (UsbStatus == NULL)) {\r | |
343 | \r | |
344 | return EFI_INVALID_PARAMETER;\r | |
345 | }\r | |
346 | \r | |
347 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
348 | \r | |
349 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
350 | Dev = UsbIf->Device;\r | |
351 | \r | |
352 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
353 | \r | |
354 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_INTERRUPT)) {\r | |
355 | Status = EFI_INVALID_PARAMETER;\r | |
356 | goto ON_EXIT;\r | |
357 | }\r | |
358 | \r | |
359 | Toggle = EpDesc->Toggle;\r | |
360 | Status = UsbHcSyncInterruptTransfer (\r | |
361 | Dev->Bus,\r | |
362 | Dev->Address,\r | |
363 | Endpoint,\r | |
364 | Dev->Speed,\r | |
365 | EpDesc->Desc.MaxPacketSize,\r | |
366 | Data,\r | |
367 | DataLength,\r | |
368 | &Toggle,\r | |
369 | Timeout,\r | |
370 | &Dev->Translator,\r | |
371 | UsbStatus\r | |
372 | );\r | |
373 | \r | |
374 | EpDesc->Toggle = Toggle;\r | |
375 | \r | |
376 | ON_EXIT:\r | |
377 | gBS->RestoreTPL (OldTpl);\r | |
378 | return Status;\r | |
379 | }\r | |
380 | \r | |
381 | \r | |
382 | /**\r | |
383 | Queue a new asynchronous interrupt transfer, or remove the old\r | |
8616fc4c | 384 | request if (IsNewTransfer == FALSE).\r |
e237e7ae | 385 | \r |
8616fc4c | 386 | @param This The USB_IO instance.\r |
387 | @param Endpoint The device endpoint.\r | |
e237e7ae | 388 | @param IsNewTransfer Whether this is a new request, if it's old, remove\r |
8616fc4c | 389 | the request.\r |
390 | @param PollInterval The interval to poll the transfer result, (in ms).\r | |
391 | @param DataLength The length of perodic data transfer.\r | |
13a623cf | 392 | @param Callback The function to call periodically when transfer is\r |
8616fc4c | 393 | ready.\r |
394 | @param Context The context to the callback.\r | |
e237e7ae | 395 | \r |
8616fc4c | 396 | @retval EFI_SUCCESS New transfer is queued or old request is removed.\r |
397 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
e237e7ae | 398 | @retval Others Failed to queue the new request or remove the old\r |
8616fc4c | 399 | request.\r |
e237e7ae | 400 | \r |
401 | **/\r | |
e237e7ae | 402 | EFI_STATUS\r |
403 | EFIAPI\r | |
404 | UsbIoAsyncInterruptTransfer (\r | |
405 | IN EFI_USB_IO_PROTOCOL *This,\r | |
406 | IN UINT8 Endpoint,\r | |
407 | IN BOOLEAN IsNewTransfer,\r | |
408 | IN UINTN PollInterval, OPTIONAL\r | |
409 | IN UINTN DataLength, OPTIONAL\r | |
410 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback, OPTIONAL\r | |
411 | IN VOID *Context OPTIONAL\r | |
412 | )\r | |
413 | {\r | |
414 | USB_DEVICE *Dev;\r | |
415 | USB_INTERFACE *UsbIf;\r | |
416 | USB_ENDPOINT_DESC *EpDesc;\r | |
417 | EFI_TPL OldTpl;\r | |
418 | UINT8 Toggle;\r | |
419 | EFI_STATUS Status;\r | |
420 | \r | |
421 | if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR (Endpoint) > 15)) {\r | |
422 | return EFI_INVALID_PARAMETER;\r | |
423 | }\r | |
424 | \r | |
425 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
426 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
427 | Dev = UsbIf->Device;\r | |
428 | \r | |
429 | EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);\r | |
430 | \r | |
431 | if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_INTERRUPT)) {\r | |
432 | Status = EFI_INVALID_PARAMETER;\r | |
433 | goto ON_EXIT;\r | |
434 | }\r | |
435 | \r | |
436 | Toggle = EpDesc->Toggle;\r | |
437 | Status = UsbHcAsyncInterruptTransfer (\r | |
438 | Dev->Bus,\r | |
439 | Dev->Address,\r | |
440 | Endpoint,\r | |
441 | Dev->Speed,\r | |
442 | EpDesc->Desc.MaxPacketSize,\r | |
443 | IsNewTransfer,\r | |
444 | &Toggle,\r | |
445 | PollInterval,\r | |
446 | DataLength,\r | |
447 | &Dev->Translator,\r | |
448 | Callback,\r | |
449 | Context\r | |
450 | );\r | |
451 | \r | |
452 | EpDesc->Toggle = Toggle;\r | |
453 | \r | |
454 | ON_EXIT:\r | |
455 | gBS->RestoreTPL (OldTpl);\r | |
456 | return Status;\r | |
457 | }\r | |
458 | \r | |
459 | \r | |
460 | /**\r | |
8616fc4c | 461 | Execute a synchronous isochronous transfer.\r |
e237e7ae | 462 | \r |
8616fc4c | 463 | @param This The USB IO instance.\r |
464 | @param DeviceEndpoint The device endpoint.\r | |
465 | @param Data The data to transfer.\r | |
466 | @param DataLength The length of the data to transfer.\r | |
467 | @param UsbStatus The result of USB transfer.\r | |
e237e7ae | 468 | \r |
8616fc4c | 469 | @retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.\r |
e237e7ae | 470 | \r |
471 | **/\r | |
e237e7ae | 472 | EFI_STATUS\r |
473 | EFIAPI\r | |
474 | UsbIoIsochronousTransfer (\r | |
475 | IN EFI_USB_IO_PROTOCOL *This,\r | |
476 | IN UINT8 DeviceEndpoint,\r | |
477 | IN OUT VOID *Data,\r | |
478 | IN UINTN DataLength,\r | |
479 | OUT UINT32 *Status\r | |
480 | )\r | |
481 | {\r | |
482 | return EFI_UNSUPPORTED;\r | |
483 | }\r | |
484 | \r | |
485 | \r | |
486 | /**\r | |
8616fc4c | 487 | Queue an asynchronous isochronous transfer.\r |
e237e7ae | 488 | \r |
8616fc4c | 489 | @param This The USB_IO instance.\r |
490 | @param DeviceEndpoint The device endpoint.\r | |
491 | @param Data The data to transfer.\r | |
492 | @param DataLength The length of perodic data transfer.\r | |
13a623cf | 493 | @param IsochronousCallBack The function to call periodically when transfer is\r |
8616fc4c | 494 | ready.\r |
495 | @param Context The context to the callback.\r | |
e237e7ae | 496 | \r |
8616fc4c | 497 | @retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.\r |
e237e7ae | 498 | \r |
499 | **/\r | |
e237e7ae | 500 | EFI_STATUS\r |
501 | EFIAPI\r | |
502 | UsbIoAsyncIsochronousTransfer (\r | |
503 | IN EFI_USB_IO_PROTOCOL *This,\r | |
504 | IN UINT8 DeviceEndpoint,\r | |
505 | IN OUT VOID *Data,\r | |
506 | IN UINTN DataLength,\r | |
507 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,\r | |
508 | IN VOID *Context OPTIONAL\r | |
509 | )\r | |
510 | {\r | |
511 | return EFI_UNSUPPORTED;\r | |
512 | }\r | |
513 | \r | |
514 | \r | |
515 | /**\r | |
8616fc4c | 516 | Retrieve the device descriptor of the device.\r |
e237e7ae | 517 | \r |
8616fc4c | 518 | @param This The USB IO instance.\r |
519 | @param Descriptor The variable to receive the device descriptor.\r | |
e237e7ae | 520 | \r |
8616fc4c | 521 | @retval EFI_SUCCESS The device descriptor is returned.\r |
522 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
e237e7ae | 523 | \r |
524 | **/\r | |
e237e7ae | 525 | EFI_STATUS\r |
526 | EFIAPI\r | |
527 | UsbIoGetDeviceDescriptor (\r | |
528 | IN EFI_USB_IO_PROTOCOL *This,\r | |
529 | OUT EFI_USB_DEVICE_DESCRIPTOR *Descriptor\r | |
530 | )\r | |
531 | {\r | |
532 | USB_DEVICE *Dev;\r | |
533 | USB_INTERFACE *UsbIf;\r | |
534 | EFI_TPL OldTpl;\r | |
535 | \r | |
536 | if (Descriptor == NULL) {\r | |
537 | return EFI_INVALID_PARAMETER;\r | |
538 | }\r | |
539 | \r | |
540 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
541 | \r | |
542 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
543 | Dev = UsbIf->Device;\r | |
544 | \r | |
545 | CopyMem (Descriptor, &Dev->DevDesc->Desc, sizeof (EFI_USB_DEVICE_DESCRIPTOR));\r | |
546 | \r | |
547 | gBS->RestoreTPL (OldTpl);\r | |
548 | return EFI_SUCCESS;\r | |
549 | }\r | |
550 | \r | |
551 | \r | |
552 | /**\r | |
8616fc4c | 553 | Return the configuration descriptor of the current active configuration.\r |
e237e7ae | 554 | \r |
8616fc4c | 555 | @param This The USB IO instance.\r |
556 | @param Descriptor The USB configuration descriptor.\r | |
e237e7ae | 557 | \r |
8616fc4c | 558 | @retval EFI_SUCCESS The active configuration descriptor is returned.\r |
559 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 560 | @retval EFI_NOT_FOUND Currently no active configuration is selected.\r |
561 | \r | |
562 | **/\r | |
e237e7ae | 563 | EFI_STATUS\r |
564 | EFIAPI\r | |
565 | UsbIoGetActiveConfigDescriptor (\r | |
566 | IN EFI_USB_IO_PROTOCOL *This,\r | |
567 | OUT EFI_USB_CONFIG_DESCRIPTOR *Descriptor\r | |
568 | )\r | |
569 | {\r | |
570 | USB_DEVICE *Dev;\r | |
571 | USB_INTERFACE *UsbIf;\r | |
572 | EFI_STATUS Status;\r | |
573 | EFI_TPL OldTpl;\r | |
574 | \r | |
575 | if (Descriptor == NULL) {\r | |
576 | return EFI_INVALID_PARAMETER;\r | |
577 | }\r | |
578 | \r | |
579 | Status = EFI_SUCCESS;\r | |
580 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
581 | \r | |
582 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
583 | Dev = UsbIf->Device;\r | |
584 | \r | |
585 | if (Dev->ActiveConfig == NULL) {\r | |
586 | Status = EFI_NOT_FOUND;\r | |
587 | goto ON_EXIT;\r | |
588 | }\r | |
589 | \r | |
590 | CopyMem (Descriptor, &(Dev->ActiveConfig->Desc), sizeof (EFI_USB_CONFIG_DESCRIPTOR));\r | |
591 | \r | |
592 | ON_EXIT:\r | |
593 | gBS->RestoreTPL (OldTpl);\r | |
594 | return Status;\r | |
595 | }\r | |
596 | \r | |
597 | \r | |
598 | /**\r | |
8616fc4c | 599 | Retrieve the active interface setting descriptor for this USB IO instance.\r |
e237e7ae | 600 | \r |
8616fc4c | 601 | @param This The USB IO instance.\r |
602 | @param Descriptor The variable to receive active interface setting.\r | |
e237e7ae | 603 | \r |
8616fc4c | 604 | @retval EFI_SUCCESS The active interface setting is returned.\r |
605 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 606 | \r |
607 | **/\r | |
e237e7ae | 608 | EFI_STATUS\r |
609 | EFIAPI\r | |
610 | UsbIoGetInterfaceDescriptor (\r | |
611 | IN EFI_USB_IO_PROTOCOL *This,\r | |
612 | OUT EFI_USB_INTERFACE_DESCRIPTOR *Descriptor\r | |
613 | )\r | |
614 | {\r | |
615 | USB_INTERFACE *UsbIf;\r | |
616 | EFI_TPL OldTpl;\r | |
617 | \r | |
618 | if (Descriptor == NULL) {\r | |
619 | return EFI_INVALID_PARAMETER;\r | |
620 | }\r | |
621 | \r | |
622 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
623 | \r | |
624 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
625 | CopyMem (Descriptor, &(UsbIf->IfSetting->Desc), sizeof (EFI_USB_INTERFACE_DESCRIPTOR));\r | |
626 | \r | |
627 | gBS->RestoreTPL (OldTpl);\r | |
628 | return EFI_SUCCESS;\r | |
629 | }\r | |
630 | \r | |
631 | \r | |
632 | /**\r | |
8616fc4c | 633 | Retrieve the endpoint descriptor from this interface setting.\r |
e237e7ae | 634 | \r |
8616fc4c | 635 | @param This The USB IO instance.\r |
e237e7ae | 636 | @param Index The index (start from zero) of the endpoint to\r |
8616fc4c | 637 | retrieve.\r |
638 | @param Descriptor The variable to receive the descriptor.\r | |
e237e7ae | 639 | \r |
8616fc4c | 640 | @retval EFI_SUCCESS The endpoint descriptor is returned.\r |
641 | @retval EFI_INVALID_PARAMETER Some parameter is invalid.\r | |
e237e7ae | 642 | \r |
643 | **/\r | |
e237e7ae | 644 | EFI_STATUS\r |
645 | EFIAPI\r | |
646 | UsbIoGetEndpointDescriptor (\r | |
647 | IN EFI_USB_IO_PROTOCOL *This,\r | |
648 | IN UINT8 Index,\r | |
649 | OUT EFI_USB_ENDPOINT_DESCRIPTOR *Descriptor\r | |
650 | )\r | |
651 | {\r | |
652 | USB_INTERFACE *UsbIf;\r | |
653 | EFI_TPL OldTpl;\r | |
654 | \r | |
655 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
656 | \r | |
657 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
658 | \r | |
50fa1b3a | 659 | if ((Descriptor == NULL) || (Index > 15)) {\r |
e237e7ae | 660 | gBS->RestoreTPL (OldTpl);\r |
661 | return EFI_INVALID_PARAMETER;\r | |
662 | }\r | |
663 | \r | |
50fa1b3a | 664 | if (Index >= UsbIf->IfSetting->Desc.NumEndpoints) {\r |
665 | gBS->RestoreTPL (OldTpl);\r | |
666 | return EFI_NOT_FOUND;\r | |
667 | }\r | |
668 | \r | |
e237e7ae | 669 | CopyMem (\r |
670 | Descriptor,\r | |
671 | &(UsbIf->IfSetting->Endpoints[Index]->Desc),\r | |
672 | sizeof (EFI_USB_ENDPOINT_DESCRIPTOR)\r | |
673 | );\r | |
674 | \r | |
675 | gBS->RestoreTPL (OldTpl);\r | |
676 | return EFI_SUCCESS;\r | |
677 | }\r | |
678 | \r | |
679 | \r | |
680 | /**\r | |
8616fc4c | 681 | Retrieve the supported language ID table from the device.\r |
e237e7ae | 682 | \r |
8616fc4c | 683 | @param This The USB IO instance.\r |
684 | @param LangIDTable The table to return the language IDs.\r | |
84909ad4 | 685 | @param TableSize The size, in bytes, of the table LangIDTable.\r |
e237e7ae | 686 | \r |
8616fc4c | 687 | @retval EFI_SUCCESS The language ID is return.\r |
e237e7ae | 688 | \r |
689 | **/\r | |
e237e7ae | 690 | EFI_STATUS\r |
691 | EFIAPI\r | |
692 | UsbIoGetSupportedLanguages (\r | |
693 | IN EFI_USB_IO_PROTOCOL *This,\r | |
694 | OUT UINT16 **LangIDTable,\r | |
695 | OUT UINT16 *TableSize\r | |
696 | )\r | |
697 | {\r | |
698 | USB_DEVICE *Dev;\r | |
699 | USB_INTERFACE *UsbIf;\r | |
700 | EFI_TPL OldTpl;\r | |
701 | \r | |
702 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
703 | \r | |
704 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
705 | Dev = UsbIf->Device;\r | |
706 | \r | |
707 | *LangIDTable = Dev->LangId;\r | |
84909ad4 | 708 | *TableSize = (UINT16) (Dev->TotalLangId * sizeof (UINT16));\r |
e237e7ae | 709 | \r |
710 | gBS->RestoreTPL (OldTpl);\r | |
711 | return EFI_SUCCESS;\r | |
712 | }\r | |
713 | \r | |
714 | \r | |
715 | /**\r | |
8616fc4c | 716 | Retrieve an indexed string in the language of LangID.\r |
e237e7ae | 717 | \r |
8616fc4c | 718 | @param This The USB IO instance.\r |
719 | @param LangID The language ID of the string to retrieve.\r | |
720 | @param StringIndex The index of the string.\r | |
721 | @param String The variable to receive the string.\r | |
e237e7ae | 722 | \r |
8616fc4c | 723 | @retval EFI_SUCCESS The string is returned.\r |
724 | @retval EFI_NOT_FOUND No such string existed.\r | |
e237e7ae | 725 | \r |
726 | **/\r | |
e237e7ae | 727 | EFI_STATUS\r |
728 | EFIAPI\r | |
729 | UsbIoGetStringDescriptor (\r | |
730 | IN EFI_USB_IO_PROTOCOL *This,\r | |
731 | IN UINT16 LangID,\r | |
732 | IN UINT8 StringIndex,\r | |
733 | OUT CHAR16 **String\r | |
734 | )\r | |
735 | {\r | |
736 | USB_DEVICE *Dev;\r | |
737 | USB_INTERFACE *UsbIf;\r | |
738 | EFI_USB_STRING_DESCRIPTOR *StrDesc;\r | |
739 | EFI_TPL OldTpl;\r | |
740 | UINT8 *Buf;\r | |
741 | UINT8 Index;\r | |
742 | EFI_STATUS Status;\r | |
743 | \r | |
744 | if ((StringIndex == 0) || (LangID == 0)) {\r | |
745 | return EFI_NOT_FOUND;\r | |
746 | }\r | |
747 | \r | |
748 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
749 | \r | |
750 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
751 | Dev = UsbIf->Device;\r | |
752 | \r | |
753 | //\r | |
754 | // Check whether language ID is supported\r | |
755 | //\r | |
756 | Status = EFI_NOT_FOUND;\r | |
757 | \r | |
758 | for (Index = 0; Index < Dev->TotalLangId; Index++) {\r | |
a1b749d0 | 759 | ASSERT (Index < USB_MAX_LANG_ID);\r |
e237e7ae | 760 | if (Dev->LangId[Index] == LangID) {\r |
761 | break;\r | |
762 | }\r | |
763 | }\r | |
764 | \r | |
765 | if (Index == Dev->TotalLangId) {\r | |
766 | goto ON_EXIT;\r | |
767 | }\r | |
768 | \r | |
769 | //\r | |
770 | // Retrieve the string descriptor then allocate a buffer\r | |
771 | // to hold the string itself.\r | |
772 | //\r | |
773 | StrDesc = UsbGetOneString (Dev, StringIndex, LangID);\r | |
774 | \r | |
775 | if (StrDesc == NULL) {\r | |
776 | goto ON_EXIT;\r | |
777 | }\r | |
778 | \r | |
779 | if (StrDesc->Length <= 2) {\r | |
780 | goto FREE_STR;\r | |
781 | }\r | |
782 | \r | |
783 | Buf = AllocateZeroPool (StrDesc->Length);\r | |
784 | \r | |
785 | if (Buf == NULL) {\r | |
786 | Status = EFI_OUT_OF_RESOURCES;\r | |
787 | goto FREE_STR;\r | |
788 | }\r | |
789 | \r | |
790 | CopyMem (Buf, StrDesc->String, StrDesc->Length - 2);\r | |
791 | *String = (CHAR16 *) Buf;\r | |
792 | Status = EFI_SUCCESS;\r | |
793 | \r | |
794 | FREE_STR:\r | |
795 | gBS->FreePool (StrDesc);\r | |
796 | \r | |
797 | ON_EXIT:\r | |
798 | gBS->RestoreTPL (OldTpl);\r | |
799 | return Status;\r | |
800 | }\r | |
801 | \r | |
802 | \r | |
803 | /**\r | |
804 | Reset the device, then if that succeeds, reconfigure the\r | |
805 | device with its address and current active configuration.\r | |
806 | \r | |
8616fc4c | 807 | @param This The USB IO instance.\r |
e237e7ae | 808 | \r |
8616fc4c | 809 | @retval EFI_SUCCESS The device is reset and configured.\r |
810 | @retval Others Failed to reset the device.\r | |
e237e7ae | 811 | \r |
812 | **/\r | |
813 | EFI_STATUS\r | |
814 | EFIAPI\r | |
815 | UsbIoPortReset (\r | |
816 | IN EFI_USB_IO_PROTOCOL *This\r | |
817 | )\r | |
818 | {\r | |
819 | USB_INTERFACE *UsbIf;\r | |
820 | USB_INTERFACE *HubIf;\r | |
821 | USB_DEVICE *Dev;\r | |
e237e7ae | 822 | EFI_TPL OldTpl;\r |
823 | EFI_STATUS Status;\r | |
71619ac2 | 824 | UINT8 DevAddress;\r |
e237e7ae | 825 | \r |
826 | OldTpl = gBS->RaiseTPL (USB_BUS_TPL);\r | |
827 | \r | |
828 | UsbIf = USB_INTERFACE_FROM_USBIO (This);\r | |
829 | Dev = UsbIf->Device;\r | |
830 | \r | |
a92d4e8a | 831 | if (UsbIf->IsHub) {\r |
50fa1b3a | 832 | Status = EFI_INVALID_PARAMETER;\r |
833 | goto ON_EXIT;\r | |
834 | }\r | |
835 | \r | |
e237e7ae | 836 | HubIf = Dev->ParentIf;\r |
837 | Status = HubIf->HubApi->ResetPort (HubIf, Dev->ParentPort);\r | |
838 | \r | |
839 | if (EFI_ERROR (Status)) {\r | |
87000d77 | 840 | DEBUG (( DEBUG_ERROR, "UsbIoPortReset: failed to reset hub port %d@hub %d, %r \n",\r |
e237e7ae | 841 | Dev->ParentPort, Dev->ParentAddr, Status));\r |
842 | \r | |
843 | goto ON_EXIT;\r | |
844 | }\r | |
845 | \r | |
71619ac2 | 846 | HubIf->HubApi->ClearPortChange (HubIf, Dev->ParentPort);\r |
847 | \r | |
e237e7ae | 848 | //\r |
c4b8c2d8 | 849 | // Reset the device to its current address. The device now has an address\r |
850 | // of ZERO after port reset, so need to set Dev->Address to the device again for\r | |
851 | // host to communicate with it.\r | |
e237e7ae | 852 | //\r |
71619ac2 | 853 | DevAddress = Dev->Address;\r |
854 | Dev->Address = 0;\r | |
855 | Status = UsbSetAddress (Dev, DevAddress);\r | |
856 | Dev->Address = DevAddress;\r | |
efe9186f | 857 | \r |
858 | gBS->Stall (USB_SET_DEVICE_ADDRESS_STALL);\r | |
d1102dba | 859 | \r |
e237e7ae | 860 | if (EFI_ERROR (Status)) {\r |
c4b8c2d8 | 861 | //\r |
862 | // It may fail due to device disconnection or other reasons.\r | |
863 | //\r | |
87000d77 | 864 | DEBUG (( DEBUG_ERROR, "UsbIoPortReset: failed to set address for device %d - %r\n",\r |
c4b8c2d8 | 865 | Dev->Address, Status));\r |
e237e7ae | 866 | \r |
867 | goto ON_EXIT;\r | |
868 | }\r | |
869 | \r | |
87000d77 | 870 | DEBUG (( DEBUG_INFO, "UsbIoPortReset: device is now ADDRESSED at %d\n", Dev->Address));\r |
e237e7ae | 871 | \r |
872 | //\r | |
873 | // Reset the current active configure, after this device\r | |
874 | // is in CONFIGURED state.\r | |
875 | //\r | |
876 | if (Dev->ActiveConfig != NULL) {\r | |
877 | Status = UsbSetConfig (Dev, Dev->ActiveConfig->Desc.ConfigurationValue);\r | |
878 | \r | |
879 | if (EFI_ERROR (Status)) {\r | |
87000d77 | 880 | DEBUG (( DEBUG_ERROR, "UsbIoPortReset: failed to set configure for device %d - %r\n",\r |
c4b8c2d8 | 881 | Dev->Address, Status));\r |
e237e7ae | 882 | }\r |
883 | }\r | |
884 | \r | |
885 | ON_EXIT:\r | |
886 | gBS->RestoreTPL (OldTpl);\r | |
887 | return Status;\r | |
888 | }\r | |
889 | \r | |
ecb575d9 | 890 | \r |
891 | /**\r | |
8616fc4c | 892 | Install Usb Bus Protocol on host controller, and start the Usb bus.\r |
ecb575d9 | 893 | \r |
8616fc4c | 894 | @param This The USB bus driver binding instance.\r |
895 | @param Controller The controller to check.\r | |
896 | @param RemainingDevicePath The remaining device patch.\r | |
ecb575d9 | 897 | \r |
8616fc4c | 898 | @retval EFI_SUCCESS The controller is controlled by the usb bus.\r |
899 | @retval EFI_ALREADY_STARTED The controller is already controlled by the usb bus.\r | |
900 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
ecb575d9 | 901 | \r |
902 | **/\r | |
903 | EFI_STATUS\r | |
904 | EFIAPI\r | |
905 | UsbBusBuildProtocol (\r | |
906 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
907 | IN EFI_HANDLE Controller,\r | |
908 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
909 | )\r | |
910 | {\r | |
911 | USB_BUS *UsbBus;\r | |
912 | USB_DEVICE *RootHub;\r | |
913 | USB_INTERFACE *RootIf;\r | |
914 | EFI_STATUS Status;\r | |
915 | EFI_STATUS Status2;\r | |
916 | \r | |
917 | UsbBus = AllocateZeroPool (sizeof (USB_BUS));\r | |
918 | \r | |
919 | if (UsbBus == NULL) {\r | |
920 | return EFI_OUT_OF_RESOURCES;\r | |
921 | }\r | |
922 | \r | |
a9292c13 | 923 | UsbBus->Signature = USB_BUS_SIGNATURE;\r |
924 | UsbBus->HostHandle = Controller;\r | |
925 | UsbBus->MaxDevices = USB_MAX_DEVICES;\r | |
ecb575d9 | 926 | \r |
927 | Status = gBS->OpenProtocol (\r | |
928 | Controller,\r | |
929 | &gEfiDevicePathProtocolGuid,\r | |
930 | (VOID **) &UsbBus->DevicePath,\r | |
931 | This->DriverBindingHandle,\r | |
932 | Controller,\r | |
933 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
934 | );\r | |
935 | \r | |
936 | if (EFI_ERROR (Status)) {\r | |
87000d77 | 937 | DEBUG ((DEBUG_ERROR, "UsbBusStart: Failed to open device path %r\n", Status));\r |
ecb575d9 | 938 | \r |
d17371e8 | 939 | FreePool (UsbBus);\r |
ecb575d9 | 940 | return Status;\r |
941 | }\r | |
942 | \r | |
943 | //\r | |
944 | // Get USB_HC2/USB_HC host controller protocol (EHCI/UHCI).\r | |
d17371e8 | 945 | // This is for backward compatibility with EFI 1.x. In UEFI\r |
ecb575d9 | 946 | // 2.x, USB_HC2 replaces USB_HC. We will open both USB_HC2\r |
947 | // and USB_HC because EHCI driver will install both protocols\r | |
948 | // (for the same reason). If we don't consume both of them,\r | |
949 | // the unconsumed one may be opened by others.\r | |
950 | //\r | |
951 | Status = gBS->OpenProtocol (\r | |
952 | Controller,\r | |
953 | &gEfiUsb2HcProtocolGuid,\r | |
954 | (VOID **) &(UsbBus->Usb2Hc),\r | |
955 | This->DriverBindingHandle,\r | |
956 | Controller,\r | |
957 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
958 | );\r | |
959 | \r | |
960 | Status2 = gBS->OpenProtocol (\r | |
961 | Controller,\r | |
962 | &gEfiUsbHcProtocolGuid,\r | |
963 | (VOID **) &(UsbBus->UsbHc),\r | |
964 | This->DriverBindingHandle,\r | |
965 | Controller,\r | |
966 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
967 | );\r | |
968 | \r | |
969 | if (EFI_ERROR (Status) && EFI_ERROR (Status2)) {\r | |
87000d77 | 970 | DEBUG ((DEBUG_ERROR, "UsbBusStart: Failed to open USB_HC/USB2_HC %r\n", Status));\r |
ecb575d9 | 971 | \r |
972 | Status = EFI_DEVICE_ERROR;\r | |
973 | goto CLOSE_HC;\r | |
974 | }\r | |
975 | \r | |
92870c98 | 976 | if (!EFI_ERROR (Status)) {\r |
a9292c13 | 977 | //\r |
978 | // The EFI_USB2_HC_PROTOCOL is produced for XHCI support.\r | |
979 | // Then its max supported devices are 256. Otherwise it's 128.\r | |
980 | //\r | |
9bdcf582 | 981 | ASSERT (UsbBus->Usb2Hc != NULL);\r |
92870c98 | 982 | if (UsbBus->Usb2Hc->MajorRevision == 0x3) {\r |
a9292c13 | 983 | UsbBus->MaxDevices = 256;\r |
92870c98 | 984 | }\r |
985 | }\r | |
986 | \r | |
ecb575d9 | 987 | //\r |
d17371e8 | 988 | // Install an EFI_USB_BUS_PROTOCOL to host controller to identify it.\r |
ecb575d9 | 989 | //\r |
990 | Status = gBS->InstallProtocolInterface (\r | |
991 | &Controller,\r | |
c8ad2d7a | 992 | &gEfiCallerIdGuid,\r |
ecb575d9 | 993 | EFI_NATIVE_INTERFACE,\r |
994 | &UsbBus->BusId\r | |
995 | );\r | |
996 | \r | |
997 | if (EFI_ERROR (Status)) {\r | |
87000d77 | 998 | DEBUG ((DEBUG_ERROR, "UsbBusStart: Failed to install bus protocol %r\n", Status));\r |
ecb575d9 | 999 | goto CLOSE_HC;\r |
1000 | }\r | |
1001 | \r | |
1002 | //\r | |
1003 | // Initial the wanted child device path list, and add first RemainingDevicePath\r | |
1004 | //\r | |
1005 | InitializeListHead (&UsbBus->WantedUsbIoDPList);\r | |
1006 | Status = UsbBusAddWantedUsbIoDP (&UsbBus->BusId, RemainingDevicePath);\r | |
1007 | ASSERT (!EFI_ERROR (Status));\r | |
1008 | //\r | |
1009 | // Create a fake usb device for root hub\r | |
1010 | //\r | |
1011 | RootHub = AllocateZeroPool (sizeof (USB_DEVICE));\r | |
1012 | \r | |
1013 | if (RootHub == NULL) {\r | |
1014 | Status = EFI_OUT_OF_RESOURCES;\r | |
1015 | goto UNINSTALL_USBBUS;\r | |
1016 | }\r | |
1017 | \r | |
1018 | RootIf = AllocateZeroPool (sizeof (USB_INTERFACE));\r | |
1019 | \r | |
1020 | if (RootIf == NULL) {\r | |
d17371e8 | 1021 | FreePool (RootHub);\r |
ecb575d9 | 1022 | Status = EFI_OUT_OF_RESOURCES;\r |
1023 | goto FREE_ROOTHUB;\r | |
1024 | }\r | |
1025 | \r | |
1026 | RootHub->Bus = UsbBus;\r | |
1027 | RootHub->NumOfInterface = 1;\r | |
1028 | RootHub->Interfaces[0] = RootIf;\r | |
92870c98 | 1029 | RootHub->Tier = 0;\r |
ecb575d9 | 1030 | RootIf->Signature = USB_INTERFACE_SIGNATURE;\r |
1031 | RootIf->Device = RootHub;\r | |
1032 | RootIf->DevicePath = UsbBus->DevicePath;\r | |
d1102dba | 1033 | \r |
37623a5c | 1034 | //\r |
1035 | // Report Status Code here since we will enumerate the USB devices\r | |
1036 | //\r | |
1037 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
1038 | EFI_PROGRESS_CODE,\r | |
1039 | (EFI_IO_BUS_USB | EFI_IOB_PC_DETECT),\r | |
1040 | UsbBus->DevicePath\r | |
1041 | );\r | |
d1102dba | 1042 | \r |
ecb575d9 | 1043 | Status = mUsbRootHubApi.Init (RootIf);\r |
1044 | \r | |
1045 | if (EFI_ERROR (Status)) {\r | |
87000d77 | 1046 | DEBUG ((DEBUG_ERROR, "UsbBusStart: Failed to init root hub %r\n", Status));\r |
ecb575d9 | 1047 | goto FREE_ROOTHUB;\r |
1048 | }\r | |
1049 | \r | |
1050 | UsbBus->Devices[0] = RootHub;\r | |
1051 | \r | |
87000d77 | 1052 | DEBUG ((DEBUG_INFO, "UsbBusStart: usb bus started on %p, root hub %p\n", Controller, RootIf));\r |
ecb575d9 | 1053 | return EFI_SUCCESS;\r |
1054 | \r | |
1055 | FREE_ROOTHUB:\r | |
1056 | if (RootIf != NULL) {\r | |
d17371e8 | 1057 | FreePool (RootIf);\r |
ecb575d9 | 1058 | }\r |
1059 | if (RootHub != NULL) {\r | |
d17371e8 | 1060 | FreePool (RootHub);\r |
ecb575d9 | 1061 | }\r |
1062 | \r | |
1063 | UNINSTALL_USBBUS:\r | |
c8ad2d7a | 1064 | gBS->UninstallProtocolInterface (Controller, &gEfiCallerIdGuid, &UsbBus->BusId);\r |
ecb575d9 | 1065 | \r |
1066 | CLOSE_HC:\r | |
1067 | if (UsbBus->Usb2Hc != NULL) {\r | |
1068 | gBS->CloseProtocol (\r | |
1069 | Controller,\r | |
1070 | &gEfiUsb2HcProtocolGuid,\r | |
1071 | This->DriverBindingHandle,\r | |
1072 | Controller\r | |
1073 | );\r | |
1074 | }\r | |
1075 | if (UsbBus->UsbHc != NULL) {\r | |
1076 | gBS->CloseProtocol (\r | |
1077 | Controller,\r | |
1078 | &gEfiUsbHcProtocolGuid,\r | |
1079 | This->DriverBindingHandle,\r | |
1080 | Controller\r | |
1081 | );\r | |
1082 | }\r | |
1083 | gBS->CloseProtocol (\r | |
1084 | Controller,\r | |
1085 | &gEfiDevicePathProtocolGuid,\r | |
1086 | This->DriverBindingHandle,\r | |
1087 | Controller\r | |
1088 | );\r | |
d17371e8 | 1089 | FreePool (UsbBus);\r |
ecb575d9 | 1090 | \r |
87000d77 | 1091 | DEBUG ((DEBUG_ERROR, "UsbBusStart: Failed to start bus driver %r\n", Status));\r |
ecb575d9 | 1092 | return Status;\r |
1093 | }\r | |
1094 | \r | |
e237e7ae | 1095 | \r |
8616fc4c | 1096 | /**\r |
1097 | The USB bus driver entry pointer.\r | |
1098 | \r | |
1099 | @param ImageHandle The driver image handle.\r | |
1100 | @param SystemTable The system table.\r | |
1101 | \r | |
1102 | @return EFI_SUCCESS The component name protocol is installed.\r | |
1103 | @return Others Failed to init the usb driver.\r | |
1104 | \r | |
1105 | **/\r | |
e237e7ae | 1106 | EFI_STATUS\r |
1107 | EFIAPI\r | |
1108 | UsbBusDriverEntryPoint (\r | |
1109 | IN EFI_HANDLE ImageHandle,\r | |
1110 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1111 | )\r | |
e237e7ae | 1112 | {\r |
62b9bb55 | 1113 | return EfiLibInstallDriverBindingComponentName2 (\r |
e237e7ae | 1114 | ImageHandle,\r |
1115 | SystemTable,\r | |
1116 | &mUsbBusDriverBinding,\r | |
1117 | ImageHandle,\r | |
1118 | &mUsbBusComponentName,\r | |
62b9bb55 | 1119 | &mUsbBusComponentName2\r |
e237e7ae | 1120 | );\r |
1121 | }\r | |
1122 | \r | |
1123 | \r | |
1124 | /**\r | |
8616fc4c | 1125 | Check whether USB bus driver support this device.\r |
e237e7ae | 1126 | \r |
8616fc4c | 1127 | @param This The USB bus driver binding protocol.\r |
34a0bac4 | 1128 | @param Controller The controller handle to check.\r |
8616fc4c | 1129 | @param RemainingDevicePath The remaining device path.\r |
e237e7ae | 1130 | \r |
1131 | @retval EFI_SUCCESS The bus supports this controller.\r | |
8616fc4c | 1132 | @retval EFI_UNSUPPORTED This device isn't supported.\r |
e237e7ae | 1133 | \r |
1134 | **/\r | |
1135 | EFI_STATUS\r | |
1136 | EFIAPI\r | |
1137 | UsbBusControllerDriverSupported (\r | |
1138 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1139 | IN EFI_HANDLE Controller,\r | |
1140 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
1141 | )\r | |
1142 | {\r | |
1143 | EFI_DEV_PATH_PTR DevicePathNode;\r | |
1144 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
1145 | EFI_USB2_HC_PROTOCOL *Usb2Hc;\r | |
1146 | EFI_USB_HC_PROTOCOL *UsbHc;\r | |
1147 | EFI_STATUS Status;\r | |
1148 | \r | |
1149 | //\r | |
1150 | // Check whether device path is valid\r | |
1151 | //\r | |
1152 | if (RemainingDevicePath != NULL) {\r | |
af4a6385 | 1153 | //\r |
d1102dba | 1154 | // Check if RemainingDevicePath is the End of Device Path Node,\r |
af4a6385 | 1155 | // if yes, go on checking other conditions\r |
1156 | //\r | |
1157 | if (!IsDevicePathEnd (RemainingDevicePath)) {\r | |
1158 | //\r | |
1159 | // If RemainingDevicePath isn't the End of Device Path Node,\r | |
1160 | // check its validation\r | |
1161 | //\r | |
1162 | DevicePathNode.DevPath = RemainingDevicePath;\r | |
d1102dba | 1163 | \r |
af4a6385 | 1164 | if ((DevicePathNode.DevPath->Type != MESSAGING_DEVICE_PATH) ||\r |
1165 | (DevicePathNode.DevPath->SubType != MSG_USB_DP &&\r | |
1166 | DevicePathNode.DevPath->SubType != MSG_USB_CLASS_DP\r | |
1167 | && DevicePathNode.DevPath->SubType != MSG_USB_WWID_DP\r | |
1168 | )) {\r | |
d1102dba | 1169 | \r |
af4a6385 | 1170 | return EFI_UNSUPPORTED;\r |
1171 | }\r | |
e237e7ae | 1172 | }\r |
1173 | }\r | |
1174 | \r | |
e237e7ae | 1175 | //\r |
1176 | // Check whether USB_HC2 protocol is installed\r | |
1177 | //\r | |
1178 | Status = gBS->OpenProtocol (\r | |
1179 | Controller,\r | |
1180 | &gEfiUsb2HcProtocolGuid,\r | |
1181 | (VOID **) &Usb2Hc,\r | |
1182 | This->DriverBindingHandle,\r | |
1183 | Controller,\r | |
1184 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1185 | );\r | |
e237e7ae | 1186 | if (Status == EFI_ALREADY_STARTED) {\r |
1187 | return EFI_SUCCESS;\r | |
1188 | }\r | |
1189 | \r | |
af4a6385 | 1190 | if (EFI_ERROR (Status)) {\r |
1191 | //\r | |
1192 | // If failed to open USB_HC2, fall back to USB_HC\r | |
1193 | //\r | |
1194 | Status = gBS->OpenProtocol (\r | |
1195 | Controller,\r | |
1196 | &gEfiUsbHcProtocolGuid,\r | |
1197 | (VOID **) &UsbHc,\r | |
1198 | This->DriverBindingHandle,\r | |
1199 | Controller,\r | |
1200 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1201 | );\r | |
1202 | if (Status == EFI_ALREADY_STARTED) {\r | |
1203 | return EFI_SUCCESS;\r | |
1204 | }\r | |
d1102dba | 1205 | \r |
af4a6385 | 1206 | if (EFI_ERROR (Status)) {\r |
1207 | return Status;\r | |
1208 | }\r | |
1209 | \r | |
1210 | //\r | |
1211 | // Close the USB_HC used to perform the supported test\r | |
1212 | //\r | |
e237e7ae | 1213 | gBS->CloseProtocol (\r |
1214 | Controller,\r | |
af4a6385 | 1215 | &gEfiUsbHcProtocolGuid,\r |
e237e7ae | 1216 | This->DriverBindingHandle,\r |
1217 | Controller\r | |
1218 | );\r | |
1219 | \r | |
af4a6385 | 1220 | } else {\r |
e237e7ae | 1221 | \r |
af4a6385 | 1222 | //\r |
1223 | // Close the USB_HC2 used to perform the supported test\r | |
1224 | //\r | |
1225 | gBS->CloseProtocol (\r | |
1226 | Controller,\r | |
1227 | &gEfiUsb2HcProtocolGuid,\r | |
1228 | This->DriverBindingHandle,\r | |
1229 | Controller\r | |
1230 | );\r | |
1231 | }\r | |
d1102dba | 1232 | \r |
e237e7ae | 1233 | //\r |
af4a6385 | 1234 | // Open the EFI Device Path protocol needed to perform the supported test\r |
e237e7ae | 1235 | //\r |
1236 | Status = gBS->OpenProtocol (\r | |
1237 | Controller,\r | |
af4a6385 | 1238 | &gEfiDevicePathProtocolGuid,\r |
1239 | (VOID **) &ParentDevicePath,\r | |
e237e7ae | 1240 | This->DriverBindingHandle,\r |
1241 | Controller,\r | |
1242 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1243 | );\r | |
e237e7ae | 1244 | if (Status == EFI_ALREADY_STARTED) {\r |
1245 | return EFI_SUCCESS;\r | |
1246 | }\r | |
1247 | \r | |
1248 | if (!EFI_ERROR (Status)) {\r | |
af4a6385 | 1249 | //\r |
1250 | // Close protocol, don't use device path protocol in the Support() function\r | |
1251 | //\r | |
e237e7ae | 1252 | gBS->CloseProtocol (\r |
1253 | Controller,\r | |
af4a6385 | 1254 | &gEfiDevicePathProtocolGuid,\r |
e237e7ae | 1255 | This->DriverBindingHandle,\r |
1256 | Controller\r | |
1257 | );\r | |
af4a6385 | 1258 | \r |
1259 | return EFI_SUCCESS;\r | |
e237e7ae | 1260 | }\r |
1261 | \r | |
1262 | return Status;\r | |
1263 | }\r | |
1264 | \r | |
1265 | \r | |
1266 | /**\r | |
8616fc4c | 1267 | Start to process the controller.\r |
e237e7ae | 1268 | \r |
8616fc4c | 1269 | @param This The USB bus driver binding instance.\r |
1270 | @param Controller The controller to check.\r | |
1271 | @param RemainingDevicePath The remaining device patch.\r | |
e237e7ae | 1272 | \r |
8616fc4c | 1273 | @retval EFI_SUCCESS The controller is controlled by the usb bus.\r |
e237e7ae | 1274 | @retval EFI_ALREADY_STARTED The controller is already controlled by the usb\r |
8616fc4c | 1275 | bus.\r |
1276 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
e237e7ae | 1277 | \r |
1278 | **/\r | |
1279 | EFI_STATUS\r | |
1280 | EFIAPI\r | |
1281 | UsbBusControllerDriverStart (\r | |
1282 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1283 | IN EFI_HANDLE Controller,\r | |
1284 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
1285 | )\r | |
1286 | {\r | |
ecb575d9 | 1287 | EFI_USB_BUS_PROTOCOL *UsbBusId;\r |
1288 | EFI_STATUS Status;\r | |
37623a5c | 1289 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r |
1290 | \r | |
1291 | Status = gBS->OpenProtocol (\r | |
1292 | Controller,\r | |
1293 | &gEfiDevicePathProtocolGuid,\r | |
1294 | (VOID **) &ParentDevicePath,\r | |
1295 | This->DriverBindingHandle,\r | |
1296 | Controller,\r | |
1297 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1298 | );\r | |
1299 | ASSERT_EFI_ERROR (Status);\r | |
1300 | \r | |
1301 | //\r | |
1302 | // Report Status Code here since we will initialize the host controller\r | |
1303 | //\r | |
1304 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
1305 | EFI_PROGRESS_CODE,\r | |
1306 | (EFI_IO_BUS_USB | EFI_IOB_PC_INIT),\r | |
1307 | ParentDevicePath\r | |
1308 | );\r | |
e237e7ae | 1309 | \r |
1310 | //\r | |
1311 | // Locate the USB bus protocol, if it is found, USB bus\r | |
1312 | // is already started on this controller.\r | |
1313 | //\r | |
1314 | Status = gBS->OpenProtocol (\r | |
1315 | Controller,\r | |
c8ad2d7a | 1316 | &gEfiCallerIdGuid,\r |
e237e7ae | 1317 | (VOID **) &UsbBusId,\r |
1318 | This->DriverBindingHandle,\r | |
1319 | Controller,\r | |
1320 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1321 | );\r | |
1322 | \r | |
e237e7ae | 1323 | if (EFI_ERROR (Status)) {\r |
ecb575d9 | 1324 | //\r |
d17371e8 | 1325 | // If first start, build the bus execute environment and install bus protocol\r |
ecb575d9 | 1326 | //\r |
3d0a2385 | 1327 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_IO_BUS_USB | EFI_P_PC_ENABLE));\r |
ecb575d9 | 1328 | Status = UsbBusBuildProtocol (This, Controller, RemainingDevicePath);\r |
1329 | if (EFI_ERROR (Status)) {\r | |
1330 | return Status;\r | |
1331 | }\r | |
1332 | //\r | |
1333 | // Try get the Usb Bus protocol interface again\r | |
1334 | //\r | |
1335 | Status = gBS->OpenProtocol (\r | |
1336 | Controller,\r | |
c8ad2d7a | 1337 | &gEfiCallerIdGuid,\r |
ecb575d9 | 1338 | (VOID **) &UsbBusId,\r |
1339 | This->DriverBindingHandle,\r | |
1340 | Controller,\r | |
1341 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1342 | );\r | |
1343 | ASSERT (!EFI_ERROR (Status));\r | |
1344 | } else {\r | |
1345 | //\r | |
1346 | // USB Bus driver need to control the recursive connect policy of the bus, only those wanted\r | |
1347 | // usb child device will be recursively connected.\r | |
1348 | // The RemainingDevicePath indicate the child usb device which user want to fully recursively connecte this time.\r | |
1349 | // All wanted usb child devices will be remembered by the usb bus driver itself.\r | |
1350 | // If RemainingDevicePath == NULL, all the usb child devices in the usb bus are wanted devices.\r | |
1351 | //\r | |
1352 | // Save the passed in RemainingDevicePath this time\r | |
1353 | //\r | |
af4a6385 | 1354 | if (RemainingDevicePath != NULL) {\r |
1355 | if (IsDevicePathEnd (RemainingDevicePath)) {\r | |
1356 | //\r | |
1357 | // If RemainingDevicePath is the End of Device Path Node,\r | |
13a623cf | 1358 | // skip enumerate any device and return EFI_SUCCESS\r |
d1102dba | 1359 | //\r |
af4a6385 | 1360 | return EFI_SUCCESS;\r |
1361 | }\r | |
1362 | }\r | |
1363 | \r | |
ecb575d9 | 1364 | Status = UsbBusAddWantedUsbIoDP (UsbBusId, RemainingDevicePath);\r |
1365 | ASSERT (!EFI_ERROR (Status));\r | |
1366 | //\r | |
1367 | // Ensure all wanted child usb devices are fully recursively connected\r | |
1368 | //\r | |
1369 | Status = UsbBusRecursivelyConnectWantedUsbIo (UsbBusId);\r | |
1370 | ASSERT (!EFI_ERROR (Status));\r | |
e237e7ae | 1371 | }\r |
1372 | \r | |
e237e7ae | 1373 | \r |
e237e7ae | 1374 | return EFI_SUCCESS;\r |
e237e7ae | 1375 | }\r |
1376 | \r | |
1377 | \r | |
1378 | /**\r | |
8616fc4c | 1379 | Stop handle the controller by this USB bus driver.\r |
e237e7ae | 1380 | \r |
8616fc4c | 1381 | @param This The USB bus driver binding protocol.\r |
1382 | @param Controller The controller to release.\r | |
e237e7ae | 1383 | @param NumberOfChildren The child of USB bus that opened controller\r |
8616fc4c | 1384 | BY_CHILD.\r |
1385 | @param ChildHandleBuffer The array of child handle.\r | |
e237e7ae | 1386 | \r |
8616fc4c | 1387 | @retval EFI_SUCCESS The controller or children are stopped.\r |
1388 | @retval EFI_DEVICE_ERROR Failed to stop the driver.\r | |
e237e7ae | 1389 | \r |
1390 | **/\r | |
1391 | EFI_STATUS\r | |
1392 | EFIAPI\r | |
1393 | UsbBusControllerDriverStop (\r | |
1394 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1395 | IN EFI_HANDLE Controller,\r | |
1396 | IN UINTN NumberOfChildren,\r | |
1397 | IN EFI_HANDLE *ChildHandleBuffer\r | |
1398 | )\r | |
1399 | {\r | |
1400 | USB_BUS *Bus;\r | |
1401 | USB_DEVICE *RootHub;\r | |
1402 | USB_DEVICE *UsbDev;\r | |
1403 | USB_INTERFACE *RootIf;\r | |
1404 | USB_INTERFACE *UsbIf;\r | |
1405 | EFI_USB_BUS_PROTOCOL *BusId;\r | |
1406 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
1407 | EFI_TPL OldTpl;\r | |
1408 | UINTN Index;\r | |
1409 | EFI_STATUS Status;\r | |
0f58371b | 1410 | EFI_STATUS ReturnStatus;\r |
e237e7ae | 1411 | \r |
1412 | Status = EFI_SUCCESS;\r | |
1413 | \r | |
1414 | if (NumberOfChildren > 0) {\r | |
ecb575d9 | 1415 | //\r |
1416 | // BugBug: Raise TPL to callback level instead of USB_BUS_TPL to avoid TPL conflict\r | |
1417 | //\r | |
1418 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
e237e7ae | 1419 | \r |
0f58371b | 1420 | ReturnStatus = EFI_SUCCESS;\r |
e237e7ae | 1421 | for (Index = 0; Index < NumberOfChildren; Index++) {\r |
1422 | Status = gBS->OpenProtocol (\r | |
1423 | ChildHandleBuffer[Index],\r | |
1424 | &gEfiUsbIoProtocolGuid,\r | |
1425 | (VOID **) &UsbIo,\r | |
1426 | This->DriverBindingHandle,\r | |
1427 | Controller,\r | |
1428 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1429 | );\r | |
1430 | \r | |
1431 | if (EFI_ERROR (Status)) {\r | |
1432 | //\r | |
1433 | // It is possible that the child has already been released:\r | |
1434 | // 1. For combo device, free one device will release others.\r | |
1435 | // 2. If a hub is released, all devices on its down facing\r | |
1436 | // ports are released also.\r | |
1437 | //\r | |
1438 | continue;\r | |
1439 | }\r | |
1440 | \r | |
1441 | UsbIf = USB_INTERFACE_FROM_USBIO (UsbIo);\r | |
1442 | UsbDev = UsbIf->Device;\r | |
1443 | \r | |
0f58371b | 1444 | ReturnStatus = UsbRemoveDevice (UsbDev);\r |
e237e7ae | 1445 | }\r |
1446 | \r | |
1447 | gBS->RestoreTPL (OldTpl);\r | |
0f58371b | 1448 | return ReturnStatus;\r |
e237e7ae | 1449 | }\r |
1450 | \r | |
87000d77 | 1451 | DEBUG (( DEBUG_INFO, "UsbBusStop: usb bus stopped on %p\n", Controller));\r |
e237e7ae | 1452 | \r |
1453 | //\r | |
1454 | // Locate USB_BUS for the current host controller\r | |
1455 | //\r | |
1456 | Status = gBS->OpenProtocol (\r | |
1457 | Controller,\r | |
c8ad2d7a | 1458 | &gEfiCallerIdGuid,\r |
e237e7ae | 1459 | (VOID **) &BusId,\r |
1460 | This->DriverBindingHandle,\r | |
1461 | Controller,\r | |
1462 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1463 | );\r | |
1464 | \r | |
1465 | if (EFI_ERROR (Status)) {\r | |
1466 | return Status;\r | |
1467 | }\r | |
1468 | \r | |
1469 | Bus = USB_BUS_FROM_THIS (BusId);\r | |
1470 | \r | |
1471 | //\r | |
1472 | // Stop the root hub, then free all the devices\r | |
1473 | //\r | |
ecb575d9 | 1474 | // BugBug: Raise TPL to callback level instead of USB_BUS_TPL to avoid TPL conflict\r |
1475 | //\r | |
1476 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
e237e7ae | 1477 | \r |
1478 | RootHub = Bus->Devices[0];\r | |
1479 | RootIf = RootHub->Interfaces[0];\r | |
1480 | \r | |
a9292c13 | 1481 | ASSERT (Bus->MaxDevices <= 256);\r |
0f58371b | 1482 | ReturnStatus = EFI_SUCCESS;\r |
a9292c13 | 1483 | for (Index = 1; Index < Bus->MaxDevices; Index++) {\r |
e237e7ae | 1484 | if (Bus->Devices[Index] != NULL) {\r |
0f58371b FT |
1485 | Status = UsbRemoveDevice (Bus->Devices[Index]);\r |
1486 | if (EFI_ERROR (Status)) {\r | |
1487 | ReturnStatus = Status;\r | |
1488 | }\r | |
e237e7ae | 1489 | }\r |
1490 | }\r | |
1491 | \r | |
1492 | gBS->RestoreTPL (OldTpl);\r | |
1493 | \r | |
0f58371b FT |
1494 | if (!EFI_ERROR (ReturnStatus)) {\r |
1495 | mUsbRootHubApi.Release (RootIf);\r | |
1496 | gBS->FreePool (RootIf);\r | |
1497 | gBS->FreePool (RootHub);\r | |
e237e7ae | 1498 | \r |
0f58371b FT |
1499 | Status = UsbBusFreeUsbDPList (&Bus->WantedUsbIoDPList);\r |
1500 | ASSERT (!EFI_ERROR (Status));\r | |
e237e7ae | 1501 | \r |
0f58371b FT |
1502 | //\r |
1503 | // Uninstall the bus identifier and close USB_HC/USB2_HC protocols\r | |
1504 | //\r | |
1505 | gBS->UninstallProtocolInterface (Controller, &gEfiCallerIdGuid, &Bus->BusId);\r | |
e237e7ae | 1506 | \r |
0f58371b FT |
1507 | if (Bus->Usb2Hc != NULL) {\r |
1508 | Status = gBS->CloseProtocol (\r | |
1509 | Controller,\r | |
1510 | &gEfiUsb2HcProtocolGuid,\r | |
1511 | This->DriverBindingHandle,\r | |
1512 | Controller\r | |
1513 | );\r | |
1514 | }\r | |
e237e7ae | 1515 | \r |
0f58371b FT |
1516 | if (Bus->UsbHc != NULL) {\r |
1517 | Status = gBS->CloseProtocol (\r | |
1518 | Controller,\r | |
1519 | &gEfiUsbHcProtocolGuid,\r | |
1520 | This->DriverBindingHandle,\r | |
1521 | Controller\r | |
1522 | );\r | |
1523 | }\r | |
e237e7ae | 1524 | \r |
0f58371b FT |
1525 | if (!EFI_ERROR (Status)) {\r |
1526 | gBS->CloseProtocol (\r | |
1527 | Controller,\r | |
1528 | &gEfiDevicePathProtocolGuid,\r | |
1529 | This->DriverBindingHandle,\r | |
1530 | Controller\r | |
1531 | );\r | |
e237e7ae | 1532 | \r |
0f58371b FT |
1533 | gBS->FreePool (Bus);\r |
1534 | }\r | |
1535 | }\r | |
e237e7ae | 1536 | return Status;\r |
1537 | }\r |