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ed838d0c | 1 | /** @file\r |
7bc232b2 | 2 | \r |
ed838d0c | 3 | Copyright (c) 2004 - 2007, Intel Corporation\r |
4 | All rights reserved. This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
7bc232b2 | 11 | \r |
7bc232b2 LG |
12 | Common Dxe Libarary for USB\r |
13 | \r | |
ed838d0c | 14 | **/\r |
7bc232b2 | 15 | \r |
dad203ec A |
16 | #include <UefiUsbLibInternal.h>\r |
17 | \r | |
ed838d0c | 18 | \r |
19 | /**\r | |
20 | Usb Get Descriptor\r | |
21 | \r | |
22 | @param UsbIo EFI_USB_IO_PROTOCOL\r | |
23 | @param Value Device Request Value\r | |
24 | @param Index Device Request Index\r | |
25 | @param DescriptorLength Descriptor Length\r | |
26 | @param Descriptor Descriptor buffer to contain result\r | |
27 | @param Status Transfer Status\r | |
28 | \r | |
29 | @retval EFI_INVALID_PARAMETER Parameter is error\r | |
30 | @retval EFI_SUCCESS Success\r | |
31 | @retval EFI_TIMEOUT Device has no response\r | |
32 | \r | |
33 | **/\r | |
7bc232b2 | 34 | EFI_STATUS\r |
f1787349 | 35 | EFIAPI\r |
7bc232b2 LG |
36 | UsbGetDescriptor (\r |
37 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
38 | IN UINT16 Value,\r | |
39 | IN UINT16 Index,\r | |
40 | IN UINT16 DescriptorLength,\r | |
41 | OUT VOID *Descriptor,\r | |
42 | OUT UINT32 *Status\r | |
43 | )\r | |
7bc232b2 LG |
44 | {\r |
45 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
46 | \r | |
47 | if (UsbIo == NULL) {\r | |
48 | return EFI_INVALID_PARAMETER;\r | |
49 | }\r | |
50 | \r | |
51 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
52 | \r | |
53 | DevReq.RequestType = USB_DEV_GET_DESCRIPTOR_REQ_TYPE;\r | |
ed838d0c | 54 | DevReq.Request = USB_REQ_GET_DESCRIPTOR;\r |
7bc232b2 LG |
55 | DevReq.Value = Value;\r |
56 | DevReq.Index = Index;\r | |
57 | DevReq.Length = DescriptorLength;\r | |
58 | \r | |
59 | return UsbIo->UsbControlTransfer (\r | |
60 | UsbIo,\r | |
61 | &DevReq,\r | |
62 | EfiUsbDataIn,\r | |
63 | TIMEOUT_VALUE,\r | |
64 | Descriptor,\r | |
65 | DescriptorLength,\r | |
66 | Status\r | |
67 | );\r | |
68 | }\r | |
ed838d0c | 69 | \r |
70 | \r | |
71 | /**\r | |
72 | Usb Set Descriptor\r | |
73 | \r | |
74 | @param UsbIo EFI_USB_IO_PROTOCOL\r | |
75 | @param Value Device Request Value\r | |
76 | @param Index Device Request Index\r | |
77 | @param DescriptorLength Descriptor Length\r | |
78 | @param Descriptor Descriptor buffer to set\r | |
79 | @param Status Transfer Status\r | |
80 | \r | |
81 | @retval EFI_INVALID_PARAMETER Parameter is error\r | |
82 | @retval EFI_SUCCESS Success\r | |
83 | @retval EFI_TIMEOUT Device has no response\r | |
84 | \r | |
85 | **/\r | |
7bc232b2 | 86 | EFI_STATUS\r |
f1787349 | 87 | EFIAPI\r |
7bc232b2 LG |
88 | UsbSetDescriptor (\r |
89 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
90 | IN UINT16 Value,\r | |
91 | IN UINT16 Index,\r | |
92 | IN UINT16 DescriptorLength,\r | |
93 | IN VOID *Descriptor,\r | |
94 | OUT UINT32 *Status\r | |
95 | )\r | |
7bc232b2 LG |
96 | {\r |
97 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
98 | \r | |
99 | if (UsbIo == NULL) {\r | |
100 | return EFI_INVALID_PARAMETER;\r | |
101 | }\r | |
102 | \r | |
103 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
104 | \r | |
105 | DevReq.RequestType = USB_DEV_SET_DESCRIPTOR_REQ_TYPE;\r | |
ed838d0c | 106 | DevReq.Request = USB_REQ_SET_DESCRIPTOR;\r |
7bc232b2 LG |
107 | DevReq.Value = Value;\r |
108 | DevReq.Index = Index;\r | |
109 | DevReq.Length = DescriptorLength;\r | |
110 | \r | |
111 | return UsbIo->UsbControlTransfer (\r | |
112 | UsbIo,\r | |
113 | &DevReq,\r | |
114 | EfiUsbDataOut,\r | |
115 | TIMEOUT_VALUE,\r | |
116 | Descriptor,\r | |
117 | DescriptorLength,\r | |
118 | Status\r | |
119 | );\r | |
120 | }\r | |
121 | \r | |
ed838d0c | 122 | \r |
123 | /**\r | |
124 | Usb Get Device Interface\r | |
125 | \r | |
126 | @param UsbIo EFI_USB_IO_PROTOCOL\r | |
127 | @param Index Interface index value\r | |
128 | @param AltSetting Alternate setting\r | |
129 | @param Status Trasnsfer status\r | |
130 | \r | |
131 | @retval EFI_INVALID_PARAMETER Parameter is error\r | |
132 | @retval EFI_SUCCESS Success\r | |
133 | @retval EFI_TIMEOUT Device has no response\r | |
134 | \r | |
135 | **/\r | |
7bc232b2 | 136 | EFI_STATUS\r |
f1787349 | 137 | EFIAPI\r |
ed838d0c | 138 | UsbGetInterface (\r |
7bc232b2 LG |
139 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r |
140 | IN UINT16 Index,\r | |
141 | OUT UINT8 *AltSetting,\r | |
142 | OUT UINT32 *Status\r | |
143 | )\r | |
7bc232b2 LG |
144 | {\r |
145 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
146 | \r | |
147 | if (UsbIo == NULL) {\r | |
148 | return EFI_INVALID_PARAMETER;\r | |
149 | }\r | |
150 | \r | |
151 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
152 | \r | |
153 | DevReq.RequestType = USB_DEV_GET_INTERFACE_REQ_TYPE;\r | |
ed838d0c | 154 | DevReq.Request = USB_REQ_GET_INTERFACE;\r |
7bc232b2 LG |
155 | DevReq.Index = Index;\r |
156 | DevReq.Length = 1;\r | |
157 | \r | |
158 | return UsbIo->UsbControlTransfer (\r | |
159 | UsbIo,\r | |
160 | &DevReq,\r | |
161 | EfiUsbDataIn,\r | |
162 | TIMEOUT_VALUE,\r | |
163 | AltSetting,\r | |
164 | 1,\r | |
165 | Status\r | |
166 | );\r | |
167 | }\r | |
7bc232b2 | 168 | \r |
7bc232b2 | 169 | \r |
ed838d0c | 170 | /**\r |
7bc232b2 LG |
171 | Usb Set Device Interface\r |
172 | \r | |
ed838d0c | 173 | @param UsbIo EFI_USB_IO_PROTOCOL\r |
174 | @param InterfaceNo Interface Number\r | |
175 | @param AltSetting Alternate setting\r | |
176 | @param Status Trasnsfer status\r | |
7bc232b2 | 177 | \r |
ed838d0c | 178 | @retval EFI_INVALID_PARAMETER Parameter is error\r |
179 | @retval EFI_SUCCESS Success\r | |
180 | @retval EFI_TIMEOUT Device has no response\r | |
7bc232b2 | 181 | \r |
ed838d0c | 182 | **/\r |
183 | EFI_STATUS\r | |
f1787349 | 184 | EFIAPI\r |
ed838d0c | 185 | UsbSetInterface (\r |
186 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
187 | IN UINT16 InterfaceNo,\r | |
188 | IN UINT16 AltSetting,\r | |
189 | OUT UINT32 *Status\r | |
190 | )\r | |
7bc232b2 LG |
191 | {\r |
192 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
193 | \r | |
194 | if (UsbIo == NULL) {\r | |
195 | return EFI_INVALID_PARAMETER;\r | |
196 | }\r | |
197 | \r | |
198 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
199 | \r | |
200 | DevReq.RequestType = USB_DEV_SET_INTERFACE_REQ_TYPE;\r | |
ed838d0c | 201 | DevReq.Request = USB_REQ_SET_INTERFACE;\r |
7bc232b2 LG |
202 | DevReq.Value = AltSetting;\r |
203 | DevReq.Index = InterfaceNo;\r | |
ed838d0c | 204 | \r |
7bc232b2 LG |
205 | \r |
206 | return UsbIo->UsbControlTransfer (\r | |
207 | UsbIo,\r | |
208 | &DevReq,\r | |
209 | EfiUsbNoData,\r | |
210 | TIMEOUT_VALUE,\r | |
211 | NULL,\r | |
212 | 0,\r | |
213 | Status\r | |
214 | );\r | |
215 | }\r | |
7bc232b2 | 216 | \r |
7bc232b2 | 217 | \r |
ed838d0c | 218 | /**\r |
7bc232b2 LG |
219 | Usb Get Device Configuration\r |
220 | \r | |
ed838d0c | 221 | @param UsbIo EFI_USB_IO_PROTOCOL\r |
222 | @param ConfigValue Config Value\r | |
223 | @param Status Transfer Status\r | |
7bc232b2 | 224 | \r |
ed838d0c | 225 | @retval EFI_INVALID_PARAMETER Parameter is error\r |
226 | @retval EFI_SUCCESS Success\r | |
227 | @retval EFI_TIMEOUT Device has no response\r | |
7bc232b2 | 228 | \r |
ed838d0c | 229 | **/\r |
230 | EFI_STATUS\r | |
f1787349 | 231 | EFIAPI\r |
ed838d0c | 232 | UsbGetConfiguration (\r |
233 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
234 | OUT UINT8 *ConfigValue,\r | |
235 | OUT UINT32 *Status\r | |
236 | )\r | |
7bc232b2 LG |
237 | {\r |
238 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
239 | \r | |
240 | if (UsbIo == NULL) {\r | |
241 | return EFI_INVALID_PARAMETER;\r | |
242 | }\r | |
243 | \r | |
244 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
245 | \r | |
246 | DevReq.RequestType = USB_DEV_GET_CONFIGURATION_REQ_TYPE;\r | |
ed838d0c | 247 | DevReq.Request = USB_REQ_GET_CONFIG;\r |
7bc232b2 LG |
248 | DevReq.Length = 1;\r |
249 | \r | |
250 | return UsbIo->UsbControlTransfer (\r | |
251 | UsbIo,\r | |
252 | &DevReq,\r | |
253 | EfiUsbDataIn,\r | |
254 | TIMEOUT_VALUE,\r | |
255 | ConfigValue,\r | |
256 | 1,\r | |
257 | Status\r | |
258 | );\r | |
259 | }\r | |
7bc232b2 | 260 | \r |
7bc232b2 | 261 | \r |
ed838d0c | 262 | /**\r |
7bc232b2 LG |
263 | Usb Set Device Configuration\r |
264 | \r | |
ed838d0c | 265 | @param UsbIo EFI_USB_IO_PROTOCOL\r |
266 | @param Value Configuration Value to set\r | |
267 | @param Status Transfer status\r | |
7bc232b2 | 268 | \r |
ed838d0c | 269 | @retval EFI_INVALID_PARAMETER Parameter is error\r |
270 | @retval EFI_SUCCESS Success\r | |
271 | @retval EFI_TIMEOUT Device has no response\r | |
7bc232b2 | 272 | \r |
ed838d0c | 273 | **/\r |
274 | EFI_STATUS\r | |
f1787349 | 275 | EFIAPI\r |
ed838d0c | 276 | UsbSetConfiguration (\r |
277 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
278 | IN UINT16 Value,\r | |
279 | OUT UINT32 *Status\r | |
280 | )\r | |
7bc232b2 LG |
281 | {\r |
282 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
283 | \r | |
284 | if (UsbIo == NULL) {\r | |
285 | return EFI_INVALID_PARAMETER;\r | |
286 | }\r | |
287 | \r | |
288 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
289 | \r | |
290 | DevReq.RequestType = USB_DEV_SET_CONFIGURATION_REQ_TYPE;\r | |
ed838d0c | 291 | DevReq.Request = USB_REQ_SET_CONFIG;\r |
7bc232b2 | 292 | DevReq.Value = Value;\r |
ed838d0c | 293 | \r |
7bc232b2 LG |
294 | return UsbIo->UsbControlTransfer (\r |
295 | UsbIo,\r | |
296 | &DevReq,\r | |
297 | EfiUsbNoData,\r | |
298 | TIMEOUT_VALUE,\r | |
299 | NULL,\r | |
300 | 0,\r | |
301 | Status\r | |
302 | );\r | |
303 | }\r | |
7bc232b2 | 304 | \r |
7bc232b2 | 305 | \r |
ed838d0c | 306 | /**\r |
7bc232b2 LG |
307 | Usb Set Device Feature\r |
308 | \r | |
ed838d0c | 309 | @param UsbIo EFI_USB_IO_PROTOCOL\r |
310 | @param Recipient Interface/Device/Endpoint\r | |
311 | @param Value Request value\r | |
312 | @param Target Request Index\r | |
313 | @param Status Transfer status\r | |
7bc232b2 | 314 | \r |
ed838d0c | 315 | @retval EFI_INVALID_PARAMETER Parameter is error\r |
316 | @retval EFI_SUCCESS Success\r | |
317 | @retval EFI_TIMEOUT Device has no response\r | |
7bc232b2 | 318 | \r |
ed838d0c | 319 | **/\r |
320 | EFI_STATUS\r | |
f1787349 | 321 | EFIAPI\r |
ed838d0c | 322 | UsbSetFeature (\r |
323 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
324 | IN UINTN Recipient,\r | |
325 | IN UINT16 Value,\r | |
326 | IN UINT16 Target,\r | |
327 | OUT UINT32 *Status\r | |
328 | )\r | |
7bc232b2 LG |
329 | {\r |
330 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
331 | \r | |
332 | if (UsbIo == NULL) {\r | |
333 | return EFI_INVALID_PARAMETER;\r | |
334 | }\r | |
335 | \r | |
336 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
337 | \r | |
338 | switch (Recipient) {\r | |
339 | \r | |
ed838d0c | 340 | case USB_TARGET_DEVICE:\r |
341 | DevReq.RequestType = USB_DEV_SET_FEATURE_REQ_TYPE_D;\r | |
7bc232b2 LG |
342 | break;\r |
343 | \r | |
ed838d0c | 344 | case USB_TARGET_INTERFACE:\r |
345 | DevReq.RequestType = USB_DEV_SET_FEATURE_REQ_TYPE_I;\r | |
7bc232b2 LG |
346 | break;\r |
347 | \r | |
ed838d0c | 348 | case USB_TARGET_ENDPOINT:\r |
349 | DevReq.RequestType = USB_DEV_SET_FEATURE_REQ_TYPE_E;\r | |
7bc232b2 LG |
350 | break;\r |
351 | }\r | |
352 | //\r | |
353 | // Fill device request, see USB1.1 spec\r | |
354 | //\r | |
ed838d0c | 355 | DevReq.Request = USB_REQ_SET_FEATURE;\r |
7bc232b2 LG |
356 | DevReq.Value = Value;\r |
357 | DevReq.Index = Target;\r | |
358 | \r | |
359 | \r | |
360 | return UsbIo->UsbControlTransfer (\r | |
361 | UsbIo,\r | |
362 | &DevReq,\r | |
363 | EfiUsbNoData,\r | |
364 | TIMEOUT_VALUE,\r | |
365 | NULL,\r | |
366 | 0,\r | |
367 | Status\r | |
368 | );\r | |
369 | }\r | |
7bc232b2 | 370 | \r |
7bc232b2 | 371 | \r |
ed838d0c | 372 | /**\r |
7bc232b2 LG |
373 | Usb Clear Device Feature\r |
374 | \r | |
ed838d0c | 375 | @param UsbIo EFI_USB_IO_PROTOCOL\r |
376 | @param Recipient Interface/Device/Endpoint\r | |
377 | @param Value Request value\r | |
378 | @param Target Request Index\r | |
379 | @param Status Transfer status\r | |
7bc232b2 | 380 | \r |
ed838d0c | 381 | @retval EFI_INVALID_PARAMETER Parameter is error\r |
382 | @retval EFI_SUCCESS Success\r | |
383 | @retval EFI_TIMEOUT Device has no response\r | |
7bc232b2 | 384 | \r |
ed838d0c | 385 | **/\r |
386 | EFI_STATUS\r | |
f1787349 | 387 | EFIAPI\r |
ed838d0c | 388 | UsbClearFeature (\r |
389 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
390 | IN UINTN Recipient,\r | |
391 | IN UINT16 Value,\r | |
392 | IN UINT16 Target,\r | |
393 | OUT UINT32 *Status\r | |
394 | )\r | |
7bc232b2 LG |
395 | {\r |
396 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
397 | \r | |
398 | if (UsbIo == NULL) {\r | |
399 | return EFI_INVALID_PARAMETER;\r | |
400 | }\r | |
401 | \r | |
402 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
403 | \r | |
404 | switch (Recipient) {\r | |
405 | \r | |
ed838d0c | 406 | case USB_TARGET_DEVICE:\r |
407 | DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_D;\r | |
7bc232b2 LG |
408 | break;\r |
409 | \r | |
ed838d0c | 410 | case USB_TARGET_INTERFACE:\r |
411 | DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_I;\r | |
7bc232b2 LG |
412 | break;\r |
413 | \r | |
ed838d0c | 414 | case USB_TARGET_ENDPOINT:\r |
415 | DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_E;\r | |
7bc232b2 LG |
416 | break;\r |
417 | }\r | |
418 | //\r | |
419 | // Fill device request, see USB1.1 spec\r | |
420 | //\r | |
ed838d0c | 421 | DevReq.Request = USB_REQ_CLEAR_FEATURE;\r |
7bc232b2 LG |
422 | DevReq.Value = Value;\r |
423 | DevReq.Index = Target;\r | |
424 | \r | |
425 | \r | |
426 | return UsbIo->UsbControlTransfer (\r | |
427 | UsbIo,\r | |
428 | &DevReq,\r | |
429 | EfiUsbNoData,\r | |
430 | TIMEOUT_VALUE,\r | |
431 | NULL,\r | |
432 | 0,\r | |
433 | Status\r | |
434 | );\r | |
435 | }\r | |
7bc232b2 | 436 | \r |
7bc232b2 | 437 | \r |
ed838d0c | 438 | /**\r |
7bc232b2 LG |
439 | Usb Get Device Status\r |
440 | \r | |
ed838d0c | 441 | @param UsbIo EFI_USB_IO_PROTOCOL\r |
442 | @param Recipient Interface/Device/Endpoint\r | |
443 | @param Target Request index\r | |
444 | @param DevStatus Device status\r | |
445 | @param Status Transfer status\r | |
7bc232b2 | 446 | \r |
ed838d0c | 447 | @retval EFI_INVALID_PARAMETER Parameter is error\r |
448 | @retval EFI_SUCCESS Success\r | |
449 | @retval EFI_TIMEOUT Device has no response\r | |
7bc232b2 | 450 | \r |
ed838d0c | 451 | **/\r |
452 | EFI_STATUS\r | |
f1787349 | 453 | EFIAPI\r |
ed838d0c | 454 | UsbGetStatus (\r |
455 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
456 | IN UINTN Recipient,\r | |
457 | IN UINT16 Target,\r | |
458 | OUT UINT16 *DevStatus,\r | |
459 | OUT UINT32 *Status\r | |
460 | )\r | |
7bc232b2 LG |
461 | {\r |
462 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
463 | \r | |
464 | if (UsbIo == NULL) {\r | |
465 | return EFI_INVALID_PARAMETER;\r | |
466 | }\r | |
467 | \r | |
468 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
469 | \r | |
470 | switch (Recipient) {\r | |
471 | \r | |
ed838d0c | 472 | case USB_TARGET_DEVICE:\r |
473 | DevReq.RequestType = USB_DEV_GET_STATUS_REQ_TYPE_D;\r | |
7bc232b2 LG |
474 | break;\r |
475 | \r | |
ed838d0c | 476 | case USB_TARGET_INTERFACE:\r |
477 | DevReq.RequestType = USB_DEV_GET_STATUS_REQ_TYPE_I;\r | |
7bc232b2 LG |
478 | break;\r |
479 | \r | |
ed838d0c | 480 | case USB_TARGET_ENDPOINT:\r |
481 | DevReq.RequestType = USB_DEV_GET_STATUS_REQ_TYPE_E;\r | |
7bc232b2 LG |
482 | break;\r |
483 | }\r | |
484 | //\r | |
485 | // Fill device request, see USB1.1 spec\r | |
486 | //\r | |
ed838d0c | 487 | DevReq.Request = USB_REQ_GET_STATUS;\r |
7bc232b2 LG |
488 | DevReq.Value = 0;\r |
489 | DevReq.Index = Target;\r | |
490 | DevReq.Length = 2;\r | |
491 | \r | |
492 | return UsbIo->UsbControlTransfer (\r | |
493 | UsbIo,\r | |
494 | &DevReq,\r | |
495 | EfiUsbDataIn,\r | |
496 | TIMEOUT_VALUE,\r | |
497 | DevStatus,\r | |
498 | 2,\r | |
499 | Status\r | |
500 | );\r | |
501 | }\r | |
7bc232b2 | 502 | \r |
7bc232b2 | 503 | \r |
7bc232b2 | 504 | \r |
ed838d0c | 505 | /**\r |
506 | Clear endpoint stall\r | |
7bc232b2 | 507 | \r |
ed838d0c | 508 | @param UsbIo EFI_USB_IO_PROTOCOL\r |
509 | @param EndpointNo Endpoint Number\r | |
510 | @param Status Transfer Status\r | |
7bc232b2 | 511 | \r |
ed838d0c | 512 | @retval EFI_NOT_FOUND Can't find the Endpoint\r |
513 | @retval EFI_DEVICE_ERROR Hardware error\r | |
514 | @retval EFI_SUCCESS Success\r | |
7bc232b2 | 515 | \r |
ed838d0c | 516 | **/\r |
7bc232b2 | 517 | EFI_STATUS\r |
f1787349 | 518 | EFIAPI\r |
7bc232b2 LG |
519 | UsbClearEndpointHalt (\r |
520 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
521 | IN UINT8 EndpointNo,\r | |
522 | OUT UINT32 *Status\r | |
523 | )\r | |
7bc232b2 LG |
524 | {\r |
525 | EFI_STATUS Result;\r | |
526 | EFI_USB_ENDPOINT_DESCRIPTOR EndpointDescriptor;\r | |
527 | EFI_USB_INTERFACE_DESCRIPTOR InterfaceDescriptor;\r | |
528 | UINT8 Index;\r | |
529 | \r | |
530 | ZeroMem (&EndpointDescriptor, sizeof (EFI_USB_ENDPOINT_DESCRIPTOR));\r | |
531 | //\r | |
532 | // First seach the endpoint descriptor for that endpoint addr\r | |
533 | //\r | |
534 | Result = UsbIo->UsbGetInterfaceDescriptor (\r | |
535 | UsbIo,\r | |
536 | &InterfaceDescriptor\r | |
537 | );\r | |
538 | if (EFI_ERROR (Result)) {\r | |
539 | return Result;\r | |
540 | }\r | |
541 | \r | |
542 | for (Index = 0; Index < InterfaceDescriptor.NumEndpoints; Index++) {\r | |
543 | Result = UsbIo->UsbGetEndpointDescriptor (\r | |
544 | UsbIo,\r | |
545 | Index,\r | |
546 | &EndpointDescriptor\r | |
547 | );\r | |
548 | if (EFI_ERROR (Result)) {\r | |
549 | continue;\r | |
550 | }\r | |
551 | \r | |
552 | if (EndpointDescriptor.EndpointAddress == EndpointNo) {\r | |
553 | break;\r | |
554 | }\r | |
555 | }\r | |
556 | \r | |
557 | if (Index == InterfaceDescriptor.NumEndpoints) {\r | |
558 | //\r | |
559 | // No such endpoint\r | |
560 | //\r | |
561 | return EFI_NOT_FOUND;\r | |
562 | }\r | |
563 | \r | |
ed838d0c | 564 | Result = UsbClearFeature (\r |
7bc232b2 | 565 | UsbIo,\r |
ed838d0c | 566 | USB_TARGET_ENDPOINT,\r |
d35be2a4 | 567 | USB_FEATURE_ENDPOINT_HALT,\r |
7bc232b2 LG |
568 | EndpointDescriptor.EndpointAddress,\r |
569 | Status\r | |
570 | );\r | |
571 | \r | |
572 | return Result;\r | |
573 | }\r |