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e237e7ae | 1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 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 | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | UsbMassCbi.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Implementation of the USB mass storage Control/Bulk/Interrupt transpor.\r | |
19 | Notice: it is being obseleted by the standard body in favor of the BOT\r | |
20 | (Bulk-Only Transport).\r | |
21 | \r | |
22 | Revision History\r | |
23 | \r | |
24 | \r | |
25 | **/\r | |
26 | \r | |
27 | #include "UsbMass.h"\r | |
28 | #include "UsbMassCbi.h"\r | |
29 | \r | |
e237e7ae | 30 | STATIC\r |
31 | EFI_STATUS\r | |
32 | UsbCbiResetDevice (\r | |
33 | IN VOID *Context,\r | |
34 | IN BOOLEAN ExtendedVerification\r | |
35 | );\r | |
36 | \r | |
37 | \r | |
38 | /**\r | |
39 | Initialize the USB mass storage class CBI transport protocol.\r | |
40 | If Context isn't NULL, it will save its context in it.\r | |
41 | \r | |
42 | @param UsbIo The USB IO to use\r | |
43 | @param Controller The device controller\r | |
44 | @param Context The variable to save context in\r | |
45 | \r | |
46 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory\r | |
47 | @retval EFI_UNSUPPORTED The device isn't supported\r | |
48 | @retval EFI_SUCCESS The CBI protocol is initialized.\r | |
49 | \r | |
50 | **/\r | |
51 | STATIC\r | |
52 | EFI_STATUS\r | |
53 | UsbCbiInit (\r | |
54 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
55 | IN EFI_HANDLE Controller,\r | |
56 | OUT VOID **Context OPTIONAL\r | |
57 | )\r | |
58 | {\r | |
59 | USB_CBI_PROTOCOL *UsbCbi;\r | |
60 | EFI_USB_INTERFACE_DESCRIPTOR *Interface;\r | |
61 | EFI_USB_ENDPOINT_DESCRIPTOR EndPoint;\r | |
62 | EFI_STATUS Status;\r | |
63 | UINT8 Index;\r | |
64 | \r | |
65 | //\r | |
66 | // Allocate the CBI context\r | |
67 | //\r | |
68 | UsbCbi = AllocateZeroPool (\r | |
69 | sizeof (USB_CBI_PROTOCOL) + 3 * sizeof (EFI_USB_ENDPOINT_DESCRIPTOR)\r | |
70 | );\r | |
71 | \r | |
72 | if (UsbCbi == NULL) {\r | |
73 | return EFI_OUT_OF_RESOURCES;\r | |
74 | }\r | |
75 | \r | |
76 | UsbCbi->UsbIo = UsbIo;\r | |
77 | \r | |
78 | //\r | |
79 | // Get the interface descriptor and validate that it is a USB mass\r | |
80 | // storage class CBI interface.\r | |
81 | //\r | |
82 | Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &UsbCbi->Interface);\r | |
83 | if (EFI_ERROR (Status)) {\r | |
84 | goto ON_ERROR;\r | |
85 | }\r | |
86 | \r | |
87 | Interface = &UsbCbi->Interface;\r | |
88 | if ((Interface->InterfaceProtocol != USB_MASS_STORE_CBI0)\r | |
89 | && (Interface->InterfaceProtocol != USB_MASS_STORE_CBI1)) {\r | |
90 | Status = EFI_UNSUPPORTED;\r | |
91 | goto ON_ERROR;\r | |
92 | }\r | |
93 | \r | |
94 | //\r | |
95 | // Locate and save the bulk-in, bulk-out, and interrupt endpoint\r | |
96 | //\r | |
97 | for (Index = 0; Index < Interface->NumEndpoints; Index++) {\r | |
98 | Status = UsbIo->UsbGetEndpointDescriptor (UsbIo, Index, &EndPoint);\r | |
99 | if (EFI_ERROR (Status)) {\r | |
100 | continue;\r | |
101 | }\r | |
102 | \r | |
103 | if (USB_IS_BULK_ENDPOINT (EndPoint.Attributes)) {\r | |
104 | //\r | |
105 | // Use the first Bulk-In and Bulk-Out endpoints\r | |
106 | //\r | |
107 | if (USB_IS_IN_ENDPOINT (EndPoint.EndpointAddress) &&\r | |
108 | (UsbCbi->BulkInEndpoint == NULL)) {\r | |
109 | \r | |
110 | UsbCbi->BulkInEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbCbi + 1);\r | |
84b5c78e | 111 | CopyMem(UsbCbi->BulkInEndpoint, &EndPoint, sizeof (EndPoint));;\r |
e237e7ae | 112 | }\r |
113 | \r | |
114 | if (USB_IS_OUT_ENDPOINT (EndPoint.EndpointAddress) &&\r | |
115 | (UsbCbi->BulkOutEndpoint == NULL)) {\r | |
116 | \r | |
117 | UsbCbi->BulkOutEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbCbi + 1) + 1;\r | |
84b5c78e | 118 | CopyMem(UsbCbi->BulkOutEndpoint, &EndPoint, sizeof (EndPoint));\r |
e237e7ae | 119 | }\r |
120 | \r | |
121 | } else if (USB_IS_INTERRUPT_ENDPOINT (EndPoint.Attributes)) {\r | |
122 | //\r | |
123 | // Use the first interrupt endpoint if it is CBI0\r | |
124 | //\r | |
125 | if ((Interface->InterfaceProtocol == USB_MASS_STORE_CBI0) &&\r | |
126 | (UsbCbi->InterruptEndpoint == NULL)) {\r | |
127 | \r | |
128 | UsbCbi->InterruptEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbCbi + 1) + 2;\r | |
84b5c78e | 129 | CopyMem(UsbCbi->InterruptEndpoint, &EndPoint, sizeof (EndPoint));\r |
e237e7ae | 130 | }\r |
131 | }\r | |
132 | }\r | |
133 | \r | |
134 | if ((UsbCbi->BulkInEndpoint == NULL)\r | |
135 | || (UsbCbi->BulkOutEndpoint == NULL)\r | |
136 | || ((Interface->InterfaceProtocol == USB_MASS_STORE_CBI0)\r | |
137 | && (UsbCbi->InterruptEndpoint == NULL))) {\r | |
138 | Status = EFI_UNSUPPORTED;\r | |
139 | goto ON_ERROR;\r | |
140 | }\r | |
141 | \r | |
142 | if (Context != NULL) {\r | |
143 | *Context = UsbCbi;\r | |
144 | } else {\r | |
145 | gBS->FreePool (UsbCbi);\r | |
146 | }\r | |
147 | return EFI_SUCCESS;\r | |
148 | \r | |
149 | ON_ERROR:\r | |
150 | gBS->FreePool (UsbCbi);\r | |
151 | return Status;\r | |
152 | }\r | |
153 | \r | |
154 | \r | |
155 | \r | |
156 | /**\r | |
157 | Send the command to the device using class specific control transfer.\r | |
158 | \r | |
159 | @param UsbCbi The USB CBI protocol\r | |
160 | @param Cmd The high level command to transfer to device\r | |
161 | @param CmdLen The length of the command\r | |
162 | @param Timeout The time to wait the command to finish\r | |
163 | \r | |
164 | @retval EFI_SUCCESS The command is transferred to device\r | |
165 | @retval Others The command failed to transfer to device\r | |
166 | \r | |
167 | **/\r | |
168 | STATIC\r | |
169 | EFI_STATUS\r | |
170 | UsbCbiSendCommand (\r | |
171 | IN USB_CBI_PROTOCOL *UsbCbi,\r | |
172 | IN UINT8 *Cmd,\r | |
173 | IN UINT8 CmdLen,\r | |
174 | IN UINT32 Timeout\r | |
175 | )\r | |
176 | {\r | |
177 | EFI_USB_DEVICE_REQUEST Request;\r | |
178 | EFI_STATUS Status;\r | |
179 | UINT32 TransStatus;\r | |
180 | UINTN DataLen;\r | |
181 | INTN Retry;\r | |
182 | \r | |
183 | //\r | |
184 | // Fill in the device request, CBI use the "Accept Device-Specific\r | |
185 | // Cmd" (ADSC) class specific request to send commands\r | |
186 | //\r | |
187 | Request.RequestType = 0x21;\r | |
188 | Request.Request = 0;\r | |
189 | Request.Value = 0;\r | |
190 | Request.Index = UsbCbi->Interface.InterfaceNumber;\r | |
191 | Request.Length = CmdLen;\r | |
192 | \r | |
193 | Status = EFI_SUCCESS;\r | |
41e8ff27 | 194 | Timeout = Timeout / USB_MASS_1_MILLISECOND;\r |
e237e7ae | 195 | \r |
196 | for (Retry = 0; Retry < USB_CBI_MAX_RETRY; Retry++) {\r | |
197 | //\r | |
198 | // Use the UsbIo to send the command to the device\r | |
199 | //\r | |
200 | TransStatus = 0;\r | |
201 | DataLen = CmdLen;\r | |
202 | \r | |
203 | Status = UsbCbi->UsbIo->UsbControlTransfer (\r | |
204 | UsbCbi->UsbIo,\r | |
205 | &Request,\r | |
206 | EfiUsbDataOut,\r | |
207 | Timeout,\r | |
208 | Cmd,\r | |
209 | DataLen,\r | |
210 | &TransStatus\r | |
211 | );\r | |
212 | //\r | |
213 | // The device can fail the command by STALL the control endpoint.\r | |
214 | // It can delay the command by NAK the data or status stage, this\r | |
215 | // is a "class-specific exemption to the USB specification". Retry\r | |
216 | // if the command is NAKed.\r | |
217 | //\r | |
218 | if (EFI_ERROR (Status) && (TransStatus == EFI_USB_ERR_NAK)) {\r | |
219 | continue;\r | |
220 | }\r | |
221 | \r | |
222 | break;\r | |
223 | }\r | |
224 | \r | |
225 | return Status;\r | |
226 | }\r | |
227 | \r | |
228 | \r | |
229 | /**\r | |
230 | Transfer data between the device and host. The CBI contains three phase,\r | |
231 | command, data, and status. This is data phase.\r | |
232 | \r | |
233 | @param UsbCbi The USB CBI device\r | |
234 | @param DataDir The direction of the data transfer\r | |
235 | @param Data The buffer to hold the data\r | |
236 | @param TransLen The expected transfer length\r | |
237 | @param Timeout The time to wait the command to execute\r | |
238 | \r | |
239 | @retval EFI_SUCCESS The data transfer succeeded\r | |
240 | @retval Others Failed to transfer all the data\r | |
241 | \r | |
242 | **/\r | |
243 | STATIC\r | |
244 | EFI_STATUS\r | |
245 | UsbCbiDataTransfer (\r | |
246 | IN USB_CBI_PROTOCOL *UsbCbi,\r | |
247 | IN EFI_USB_DATA_DIRECTION DataDir,\r | |
248 | IN OUT UINT8 *Data,\r | |
249 | IN OUT UINTN *TransLen,\r | |
250 | IN UINT32 Timeout\r | |
251 | )\r | |
252 | {\r | |
253 | EFI_USB_ENDPOINT_DESCRIPTOR *Endpoint;\r | |
254 | EFI_STATUS Status;\r | |
255 | UINT32 TransStatus;\r | |
256 | UINTN Remain;\r | |
257 | UINTN Increment;\r | |
258 | UINT8 *Next;\r | |
259 | UINTN Retry;\r | |
260 | \r | |
261 | //\r | |
262 | // It's OK if no data to transfer\r | |
263 | //\r | |
264 | if ((DataDir == EfiUsbNoData) || (*TransLen == 0)) {\r | |
265 | return EFI_SUCCESS;\r | |
266 | }\r | |
267 | \r | |
268 | //\r | |
269 | // Select the endpoint then issue the transfer\r | |
270 | //\r | |
271 | if (DataDir == EfiUsbDataIn) {\r | |
272 | Endpoint = UsbCbi->BulkInEndpoint;\r | |
273 | } else {\r | |
274 | Endpoint = UsbCbi->BulkOutEndpoint;\r | |
275 | }\r | |
276 | \r | |
277 | Next = Data;\r | |
278 | Remain = *TransLen;\r | |
279 | Retry = 0;\r | |
280 | Status = EFI_SUCCESS;\r | |
41e8ff27 | 281 | Timeout = Timeout / USB_MASS_1_MILLISECOND;\r |
e237e7ae | 282 | \r |
283 | //\r | |
284 | // Transfer the data, if the device returns NAK, retry it.\r | |
285 | //\r | |
286 | while (Remain > 0) {\r | |
287 | TransStatus = 0;\r | |
288 | \r | |
289 | if (Remain > (UINTN) USB_CBI_MAX_PACKET_NUM * Endpoint->MaxPacketSize) {\r | |
290 | Increment = USB_CBI_MAX_PACKET_NUM * Endpoint->MaxPacketSize;\r | |
291 | } else {\r | |
292 | Increment = Remain;\r | |
293 | }\r | |
294 | \r | |
295 | Status = UsbCbi->UsbIo->UsbBulkTransfer (\r | |
296 | UsbCbi->UsbIo,\r | |
297 | Endpoint->EndpointAddress,\r | |
298 | Next,\r | |
299 | &Increment,\r | |
300 | Timeout,\r | |
301 | &TransStatus\r | |
302 | );\r | |
303 | if (EFI_ERROR (Status)) {\r | |
304 | if (TransStatus == EFI_USB_ERR_NAK) {\r | |
305 | //\r | |
306 | // The device can NAK the host if either the data/buffer isn't\r | |
307 | // aviable or the command is in-progress. The data can be partly\r | |
308 | // transferred. The transfer is aborted if several succssive data\r | |
309 | // transfer commands are NAKed.\r | |
310 | //\r | |
311 | if (Increment == 0) {\r | |
312 | if (++Retry > USB_CBI_MAX_RETRY) {\r | |
313 | goto ON_EXIT;\r | |
314 | }\r | |
315 | \r | |
316 | } else {\r | |
317 | Next += Increment;\r | |
318 | Remain -= Increment;\r | |
319 | Retry = 0;\r | |
320 | }\r | |
321 | \r | |
322 | continue;\r | |
323 | }\r | |
324 | \r | |
325 | //\r | |
326 | // The device can fail the command by STALL the bulk endpoint.\r | |
327 | // Clear the stall if that is the case.\r | |
328 | //\r | |
329 | if (TransStatus == EFI_USB_ERR_STALL) {\r | |
330 | UsbClearEndpointStall (UsbCbi->UsbIo, Endpoint->EndpointAddress);\r | |
331 | }\r | |
332 | \r | |
333 | goto ON_EXIT;\r | |
334 | }\r | |
335 | \r | |
336 | Next += Increment;\r | |
337 | Remain -= Increment;\r | |
338 | }\r | |
339 | \r | |
340 | ON_EXIT:\r | |
341 | *TransLen -= Remain;\r | |
342 | return Status;\r | |
343 | }\r | |
344 | \r | |
345 | \r | |
346 | /**\r | |
347 | Get the result of high level command execution from interrupt\r | |
348 | endpoint. This function returns the USB transfer status, and\r | |
349 | put the high level command execution result in Result.\r | |
350 | \r | |
351 | @param UsbCbi The USB CBI protocol\r | |
352 | @param Timeout The time to wait the command to execute\r | |
353 | @param Result GC_TODO: add argument description\r | |
354 | \r | |
355 | @retval EFI_SUCCESS The high level command execution result is\r | |
356 | retrieved in Result.\r | |
357 | @retval Others Failed to retrieve the result.\r | |
358 | \r | |
359 | **/\r | |
360 | STATIC\r | |
361 | EFI_STATUS\r | |
362 | UsbCbiGetStatus (\r | |
363 | IN USB_CBI_PROTOCOL *UsbCbi,\r | |
364 | IN UINT32 Timeout,\r | |
365 | OUT USB_CBI_STATUS *Result\r | |
366 | )\r | |
367 | {\r | |
368 | UINTN Len;\r | |
369 | UINT8 Endpoint;\r | |
370 | EFI_STATUS Status;\r | |
371 | UINT32 TransStatus;\r | |
372 | INTN Retry;\r | |
373 | \r | |
374 | Endpoint = UsbCbi->InterruptEndpoint->EndpointAddress;\r | |
375 | Status = EFI_SUCCESS;\r | |
41e8ff27 | 376 | Timeout = Timeout / USB_MASS_1_MILLISECOND;\r |
e237e7ae | 377 | \r |
378 | //\r | |
379 | // Attemp to the read the result from interrupt endpoint\r | |
380 | //\r | |
381 | for (Retry = 0; Retry < USB_CBI_MAX_RETRY; Retry++) {\r | |
382 | TransStatus = 0;\r | |
383 | Len = sizeof (USB_CBI_STATUS);\r | |
384 | \r | |
385 | Status = UsbCbi->UsbIo->UsbSyncInterruptTransfer (\r | |
386 | UsbCbi->UsbIo,\r | |
387 | Endpoint,\r | |
388 | Result,\r | |
389 | &Len,\r | |
390 | Timeout,\r | |
391 | &TransStatus\r | |
392 | );\r | |
393 | //\r | |
394 | // The CBI can NAK the interrupt endpoint if the command is in-progress.\r | |
395 | //\r | |
396 | if (EFI_ERROR (Status) && (TransStatus == EFI_USB_ERR_NAK)) {\r | |
397 | continue;\r | |
398 | }\r | |
399 | \r | |
400 | break;\r | |
401 | }\r | |
402 | \r | |
403 | return Status;\r | |
404 | }\r | |
405 | \r | |
406 | \r | |
407 | /**\r | |
408 | Execute USB mass storage command through the CBI0/CBI1 transport protocol\r | |
409 | \r | |
410 | @param Context The USB CBI device\r | |
411 | @param Cmd The command to transfer to device\r | |
412 | @param CmdLen The length of the command\r | |
413 | @param DataDir The direction of data transfer\r | |
414 | @param Data The buffer to hold the data\r | |
415 | @param DataLen The length of the buffer\r | |
416 | @param Timeout The time to wait\r | |
417 | @param CmdStatus The result of the command execution\r | |
418 | \r | |
419 | @retval EFI_SUCCESS The command is executed OK and result in CmdStatus.\r | |
420 | @retval EFI_DEVICE_ERROR Failed to execute the command\r | |
421 | \r | |
422 | **/\r | |
423 | STATIC\r | |
424 | EFI_STATUS\r | |
425 | UsbCbiExecCommand (\r | |
426 | IN VOID *Context,\r | |
427 | IN VOID *Cmd,\r | |
428 | IN UINT8 CmdLen,\r | |
429 | IN EFI_USB_DATA_DIRECTION DataDir,\r | |
430 | IN VOID *Data,\r | |
431 | IN UINT32 DataLen,\r | |
432 | IN UINT32 Timeout,\r | |
433 | OUT UINT32 *CmdStatus\r | |
434 | )\r | |
435 | {\r | |
436 | USB_CBI_PROTOCOL *UsbCbi;\r | |
437 | USB_CBI_STATUS Result;\r | |
438 | EFI_STATUS Status;\r | |
439 | UINTN TransLen;\r | |
440 | \r | |
441 | *CmdStatus = USB_MASS_CMD_SUCCESS;\r | |
442 | UsbCbi = (USB_CBI_PROTOCOL *) Context;\r | |
443 | \r | |
444 | //\r | |
445 | // Send the command to the device. Return immediately if device\r | |
446 | // rejects the command.\r | |
447 | //\r | |
448 | Status = UsbCbiSendCommand (UsbCbi, Cmd, CmdLen, Timeout);\r | |
449 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 450 | DEBUG ((EFI_D_ERROR, "UsbCbiExecCommand: UsbCbiSendCommand (%r)\n",Status));\r |
e237e7ae | 451 | return Status;\r |
452 | }\r | |
453 | \r | |
454 | //\r | |
455 | // Transfer the data, return this status if no interrupt endpoint\r | |
456 | // is used to report the transfer status.\r | |
457 | //\r | |
458 | TransLen = (UINTN) DataLen;\r | |
459 | \r | |
460 | Status = UsbCbiDataTransfer (UsbCbi, DataDir, Data, &TransLen, Timeout);\r | |
461 | if (UsbCbi->InterruptEndpoint == NULL) {\r | |
1c619535 | 462 | DEBUG ((EFI_D_ERROR, "UsbCbiExecCommand: UsbCbiDataTransfer (%r)\n",Status));\r |
e237e7ae | 463 | return Status;\r |
464 | }\r | |
465 | \r | |
466 | //\r | |
467 | // Get the status, if that succeeds, interpret the result\r | |
468 | //\r | |
469 | Status = UsbCbiGetStatus (UsbCbi, Timeout, &Result);\r | |
470 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 471 | DEBUG ((EFI_D_ERROR, "UsbCbiExecCommand: UsbCbiGetStatus (%r)\n",Status));\r |
e237e7ae | 472 | return EFI_DEVICE_ERROR;\r |
473 | }\r | |
474 | \r | |
475 | if (UsbCbi->Interface.InterfaceSubClass == USB_MASS_STORE_UFI) {\r | |
476 | //\r | |
477 | // For UFI device, ASC and ASCQ are returned.\r | |
478 | //\r | |
479 | if (Result.Type != 0) {\r | |
480 | *CmdStatus = USB_MASS_CMD_FAIL;\r | |
481 | }\r | |
482 | \r | |
483 | } else {\r | |
484 | //\r | |
485 | // Check page 27, CBI spec 1.1 for vaious reture status.\r | |
486 | //\r | |
487 | switch (Result.Value & 0x03) {\r | |
488 | case 0x00:\r | |
489 | //\r | |
490 | // Pass\r | |
491 | //\r | |
492 | *CmdStatus = USB_MASS_CMD_SUCCESS;\r | |
493 | break;\r | |
494 | \r | |
495 | case 0x02:\r | |
496 | //\r | |
497 | // Phase Error, response with reset. Fall through to Fail.\r | |
498 | //\r | |
499 | UsbCbiResetDevice (UsbCbi, FALSE);\r | |
500 | \r | |
501 | case 0x01:\r | |
502 | //\r | |
503 | // Fail\r | |
504 | //\r | |
505 | *CmdStatus = USB_MASS_CMD_FAIL;\r | |
506 | break;\r | |
507 | \r | |
508 | case 0x03:\r | |
509 | //\r | |
510 | // Persistent Fail, need to send REQUEST SENSE.\r | |
511 | //\r | |
512 | *CmdStatus = USB_MASS_CMD_PERSISTENT;\r | |
513 | break;\r | |
514 | }\r | |
515 | }\r | |
516 | \r | |
517 | return EFI_SUCCESS;\r | |
518 | }\r | |
519 | \r | |
520 | \r | |
521 | /**\r | |
522 | Call the Usb mass storage class transport protocol to\r | |
523 | reset the device. The reset is defined as a Non-Data\r | |
524 | command. Don't use UsbCbiExecCommand to send the command\r | |
525 | to device because that may introduce recursive loop.\r | |
526 | \r | |
527 | @param Context The USB CBI device protocol\r | |
528 | \r | |
529 | @retval EFI_SUCCESS the device is reset\r | |
530 | @retval Others Failed to reset the device\r | |
531 | \r | |
532 | **/\r | |
533 | STATIC\r | |
534 | EFI_STATUS\r | |
535 | UsbCbiResetDevice (\r | |
536 | IN VOID *Context,\r | |
537 | IN BOOLEAN ExtendedVerification\r | |
538 | )\r | |
539 | {\r | |
540 | UINT8 ResetCmd[USB_CBI_RESET_CMD_LEN];\r | |
541 | USB_CBI_PROTOCOL *UsbCbi;\r | |
542 | USB_CBI_STATUS Result;\r | |
543 | EFI_STATUS Status;\r | |
544 | UINT32 Timeout;\r | |
545 | \r | |
546 | UsbCbi = (USB_CBI_PROTOCOL *) Context;\r | |
547 | \r | |
548 | //\r | |
549 | // Fill in the reset command.\r | |
550 | //\r | |
551 | SetMem (ResetCmd, USB_CBI_RESET_CMD_LEN, 0xFF);\r | |
552 | \r | |
553 | ResetCmd[0] = 0x1D;\r | |
554 | ResetCmd[1] = 0x04;\r | |
41e8ff27 | 555 | Timeout = USB_CBI_RESET_DEVICE_TIMEOUT / USB_MASS_1_MILLISECOND;\r |
e237e7ae | 556 | \r |
557 | //\r | |
558 | // Send the command to the device. Don't use UsbCbiExecCommand here.\r | |
559 | //\r | |
560 | Status = UsbCbiSendCommand (UsbCbi, ResetCmd, USB_CBI_RESET_CMD_LEN, Timeout);\r | |
561 | if (EFI_ERROR (Status)) {\r | |
562 | return Status;\r | |
563 | }\r | |
564 | \r | |
565 | //\r | |
566 | // Just retrieve the status and ignore that. Then stall\r | |
567 | // 50ms to wait it complete\r | |
568 | //\r | |
569 | UsbCbiGetStatus (UsbCbi, Timeout, &Result);\r | |
41e8ff27 | 570 | gBS->Stall (USB_CBI_RESET_DEVICE_STALL);\r |
e237e7ae | 571 | \r |
572 | //\r | |
573 | // Clear the Bulk-In and Bulk-Out stall condition and\r | |
574 | // init data toggle.\r | |
575 | //\r | |
576 | UsbClearEndpointStall (UsbCbi->UsbIo, UsbCbi->BulkInEndpoint->EndpointAddress);\r | |
577 | UsbClearEndpointStall (UsbCbi->UsbIo, UsbCbi->BulkOutEndpoint->EndpointAddress);\r | |
578 | return Status;\r | |
579 | }\r | |
580 | \r | |
581 | \r | |
582 | /**\r | |
583 | Clean up the CBI protocol's resource\r | |
584 | \r | |
585 | @param Context The CBI protocol\r | |
586 | \r | |
587 | @retval EFI_SUCCESS The resource is cleaned up.\r | |
588 | \r | |
589 | **/\r | |
590 | STATIC\r | |
591 | EFI_STATUS\r | |
592 | UsbCbiFini (\r | |
593 | IN VOID *Context\r | |
594 | )\r | |
595 | {\r | |
596 | gBS->FreePool (Context);\r | |
597 | return EFI_SUCCESS;\r | |
598 | }\r | |
599 | \r | |
600 | USB_MASS_TRANSPORT\r | |
601 | mUsbCbi0Transport = {\r | |
602 | USB_MASS_STORE_CBI0,\r | |
603 | UsbCbiInit,\r | |
604 | UsbCbiExecCommand,\r | |
605 | UsbCbiResetDevice,\r | |
606 | UsbCbiFini\r | |
607 | };\r | |
608 | \r | |
609 | USB_MASS_TRANSPORT\r | |
610 | mUsbCbi1Transport = {\r | |
611 | USB_MASS_STORE_CBI1,\r | |
612 | UsbCbiInit,\r | |
613 | UsbCbiExecCommand,\r | |
614 | UsbCbiResetDevice,\r | |
615 | UsbCbiFini\r | |
616 | };\r |