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e237e7ae | 1 | /** @file\r |
d80ed2a7 | 2 | Implementation of the USB mass storage Bulk-Only Transport protocol,\r |
3 | according to USB Mass Storage Class Bulk-Only Transport, Revision 1.0.\r | |
cc5166ff | 4 | \r |
c7e39923 | 5 | Copyright (c) 2007 - 2008, Intel Corporation\r |
e237e7ae | 6 | All rights reserved. This program and the accompanying materials\r |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
cc5166ff | 14 | **/\r |
e237e7ae | 15 | \r |
cc5166ff | 16 | #include "UsbMass.h"\r |
17 | #include "UsbMassBot.h"\r | |
e237e7ae | 18 | \r |
d80ed2a7 | 19 | //\r |
20 | // Definition of USB BOT Transport Protocol\r | |
21 | //\r | |
22 | USB_MASS_TRANSPORT mUsbBotTransport = {\r | |
23 | USB_MASS_STORE_BOT,\r | |
24 | UsbBotInit,\r | |
25 | UsbBotExecCommand,\r | |
26 | UsbBotResetDevice,\r | |
27 | UsbBotGetMaxLun,\r | |
28 | UsbBotCleanUp\r | |
29 | };\r | |
e237e7ae | 30 | \r |
31 | /**\r | |
d80ed2a7 | 32 | Initializes USB BOT protocol.\r |
33 | \r | |
34 | This function initializes the USB mass storage class BOT protocol.\r | |
e237e7ae | 35 | It will save its context which is a USB_BOT_PROTOCOL structure\r |
36 | in the Context if Context isn't NULL.\r | |
37 | \r | |
d80ed2a7 | 38 | @param UsbIo The USB I/O Protocol instance\r |
39 | @param Context The buffer to save the context to\r | |
e237e7ae | 40 | \r |
d80ed2a7 | 41 | @retval EFI_SUCCESS The device is successfully initialized.\r |
e237e7ae | 42 | @retval EFI_UNSUPPORTED The transport protocol doesn't support the device.\r |
d80ed2a7 | 43 | @retval Other The USB BOT initialization fails.\r |
e237e7ae | 44 | \r |
45 | **/\r | |
e237e7ae | 46 | EFI_STATUS\r |
47 | UsbBotInit (\r | |
d80ed2a7 | 48 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r |
e237e7ae | 49 | OUT VOID **Context OPTIONAL\r |
50 | )\r | |
51 | {\r | |
52 | USB_BOT_PROTOCOL *UsbBot;\r | |
53 | EFI_USB_INTERFACE_DESCRIPTOR *Interface;\r | |
54 | EFI_USB_ENDPOINT_DESCRIPTOR EndPoint;\r | |
55 | EFI_STATUS Status;\r | |
56 | UINT8 Index;\r | |
57 | \r | |
58 | //\r | |
d80ed2a7 | 59 | // Allocate the BOT context for USB_BOT_PROTOCOL and two endpoint descriptors.\r |
e237e7ae | 60 | //\r |
61 | UsbBot = AllocateZeroPool (\r | |
62 | sizeof (USB_BOT_PROTOCOL) + 2 * sizeof (EFI_USB_ENDPOINT_DESCRIPTOR)\r | |
63 | );\r | |
d80ed2a7 | 64 | ASSERT (UsbBot != NULL);\r |
e237e7ae | 65 | \r |
66 | UsbBot->UsbIo = UsbIo;\r | |
67 | \r | |
68 | //\r | |
69 | // Get the interface descriptor and validate that it\r | |
d80ed2a7 | 70 | // is a USB Mass Storage BOT interface.\r |
e237e7ae | 71 | //\r |
72 | Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &UsbBot->Interface);\r | |
73 | \r | |
74 | if (EFI_ERROR (Status)) {\r | |
e237e7ae | 75 | goto ON_ERROR;\r |
76 | }\r | |
77 | \r | |
78 | Interface = &UsbBot->Interface;\r | |
79 | \r | |
80 | if (Interface->InterfaceProtocol != USB_MASS_STORE_BOT) {\r | |
81 | Status = EFI_UNSUPPORTED;\r | |
82 | goto ON_ERROR;\r | |
83 | }\r | |
84 | \r | |
85 | //\r | |
86 | // Locate and save the first bulk-in and bulk-out endpoint\r | |
87 | //\r | |
88 | for (Index = 0; Index < Interface->NumEndpoints; Index++) {\r | |
89 | Status = UsbIo->UsbGetEndpointDescriptor (UsbIo, Index, &EndPoint);\r | |
90 | \r | |
91 | if (EFI_ERROR (Status) || !USB_IS_BULK_ENDPOINT (EndPoint.Attributes)) {\r | |
92 | continue;\r | |
93 | }\r | |
94 | \r | |
95 | if (USB_IS_IN_ENDPOINT (EndPoint.EndpointAddress) &&\r | |
96 | (UsbBot->BulkInEndpoint == NULL)) {\r | |
97 | \r | |
98 | UsbBot->BulkInEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbBot + 1);\r | |
84b5c78e | 99 | CopyMem(UsbBot->BulkInEndpoint, &EndPoint, sizeof (EndPoint));\r |
e237e7ae | 100 | }\r |
101 | \r | |
102 | if (USB_IS_OUT_ENDPOINT (EndPoint.EndpointAddress) &&\r | |
103 | (UsbBot->BulkOutEndpoint == NULL)) {\r | |
104 | \r | |
105 | UsbBot->BulkOutEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbBot + 1) + 1;\r | |
84b5c78e | 106 | CopyMem(UsbBot->BulkOutEndpoint, &EndPoint, sizeof(EndPoint));\r |
e237e7ae | 107 | }\r |
108 | }\r | |
109 | \r | |
d80ed2a7 | 110 | //\r |
111 | // If bulk-in or bulk-out endpoint is not found, report error.\r | |
112 | //\r | |
e237e7ae | 113 | if ((UsbBot->BulkInEndpoint == NULL) || (UsbBot->BulkOutEndpoint == NULL)) {\r |
e237e7ae | 114 | Status = EFI_UNSUPPORTED;\r |
115 | goto ON_ERROR;\r | |
116 | }\r | |
117 | \r | |
118 | //\r | |
d80ed2a7 | 119 | // The USB BOT protocol uses CBWTag to match the CBW and CSW.\r |
e237e7ae | 120 | //\r |
121 | UsbBot->CbwTag = 0x01;\r | |
122 | \r | |
123 | if (Context != NULL) {\r | |
124 | *Context = UsbBot;\r | |
125 | } else {\r | |
126 | gBS->FreePool (UsbBot);\r | |
127 | }\r | |
128 | \r | |
129 | return EFI_SUCCESS;\r | |
130 | \r | |
131 | ON_ERROR:\r | |
132 | gBS->FreePool (UsbBot);\r | |
133 | return Status;\r | |
134 | }\r | |
135 | \r | |
e237e7ae | 136 | /**\r |
cc5166ff | 137 | Send the command to the device using Bulk-Out endpoint.\r |
e237e7ae | 138 | \r |
d80ed2a7 | 139 | This function sends the command to the device using Bulk-Out endpoint.\r |
140 | BOT transfer is composed of three phases: Command, Data, and Status.\r | |
141 | This is the Command phase.\r | |
142 | \r | |
e237e7ae | 143 | @param UsbBot The USB BOT device\r |
144 | @param Cmd The command to transfer to device\r | |
d80ed2a7 | 145 | @param CmdLen The length of the command\r |
e237e7ae | 146 | @param DataDir The direction of the data\r |
147 | @param TransLen The expected length of the data\r | |
c7e39923 | 148 | @param Lun The number of logic unit\r |
e237e7ae | 149 | \r |
e237e7ae | 150 | @retval EFI_SUCCESS The command is sent to the device.\r |
d80ed2a7 | 151 | @retval EFI_NOT_READY The device return NAK to the transfer\r |
e237e7ae | 152 | @retval Others Failed to send the command to device\r |
153 | \r | |
154 | **/\r | |
e237e7ae | 155 | EFI_STATUS\r |
156 | UsbBotSendCommand (\r | |
157 | IN USB_BOT_PROTOCOL *UsbBot,\r | |
158 | IN UINT8 *Cmd,\r | |
159 | IN UINT8 CmdLen,\r | |
160 | IN EFI_USB_DATA_DIRECTION DataDir,\r | |
c7e39923 | 161 | IN UINT32 TransLen,\r |
162 | IN UINT8 Lun\r | |
e237e7ae | 163 | )\r |
164 | {\r | |
165 | USB_BOT_CBW Cbw;\r | |
166 | EFI_STATUS Status;\r | |
167 | UINT32 Result;\r | |
168 | UINTN DataLen;\r | |
169 | UINTN Timeout;\r | |
170 | \r | |
171 | ASSERT ((CmdLen > 0) && (CmdLen <= USB_BOT_MAX_CMDLEN));\r | |
172 | \r | |
173 | //\r | |
d80ed2a7 | 174 | // Fill in the Command Block Wrapper.\r |
e237e7ae | 175 | //\r |
176 | Cbw.Signature = USB_BOT_CBW_SIGNATURE;\r | |
177 | Cbw.Tag = UsbBot->CbwTag;\r | |
178 | Cbw.DataLen = TransLen;\r | |
d80ed2a7 | 179 | Cbw.Flag = (UINT8) ((DataDir == EfiUsbDataIn) ? BIT7 : 0);\r |
c7e39923 | 180 | Cbw.Lun = Lun;\r |
e237e7ae | 181 | Cbw.CmdLen = CmdLen;\r |
182 | \r | |
183 | ZeroMem (Cbw.CmdBlock, USB_BOT_MAX_CMDLEN);\r | |
184 | CopyMem (Cbw.CmdBlock, Cmd, CmdLen);\r | |
185 | \r | |
d80ed2a7 | 186 | Result = 0;\r |
187 | DataLen = sizeof (USB_BOT_CBW);\r | |
188 | Timeout = USB_BOT_SEND_CBW_TIMEOUT / USB_MASS_1_MILLISECOND;\r | |
e237e7ae | 189 | \r |
190 | //\r | |
d80ed2a7 | 191 | // Use USB I/O Protocol to send the Command Block Wrapper to the device.\r |
e237e7ae | 192 | //\r |
193 | Status = UsbBot->UsbIo->UsbBulkTransfer (\r | |
194 | UsbBot->UsbIo,\r | |
195 | UsbBot->BulkOutEndpoint->EndpointAddress,\r | |
196 | &Cbw,\r | |
197 | &DataLen,\r | |
198 | Timeout,\r | |
199 | &Result\r | |
200 | );\r | |
e237e7ae | 201 | if (EFI_ERROR (Status)) {\r |
202 | if (USB_IS_ERROR (Result, EFI_USB_ERR_STALL) && DataDir == EfiUsbDataOut) {\r | |
d80ed2a7 | 203 | //\r |
204 | // Respond to Bulk-Out endpoint stall with a Reset Recovery,\r | |
205 | // according to section 5.3.1 of USB Mass Storage Class Bulk-Only Transport Spec, v1.0.\r | |
206 | //\r | |
e237e7ae | 207 | UsbBotResetDevice (UsbBot, FALSE);\r |
208 | } else if (USB_IS_ERROR (Result, EFI_USB_ERR_NAK)) {\r | |
209 | Status = EFI_NOT_READY;\r | |
210 | }\r | |
211 | }\r | |
212 | \r | |
213 | return Status;\r | |
214 | }\r | |
215 | \r | |
216 | \r | |
217 | /**\r | |
d80ed2a7 | 218 | Transfer the data between the device and host.\r |
219 | \r | |
220 | This function transfers the data between the device and host.\r | |
221 | BOT transfer is composed of three phases: Command, Data, and Status.\r | |
222 | This is the Data phase.\r | |
e237e7ae | 223 | \r |
224 | @param UsbBot The USB BOT device\r | |
225 | @param DataDir The direction of the data\r | |
226 | @param Data The buffer to hold data\r | |
227 | @param TransLen The expected length of the data\r | |
228 | @param Timeout The time to wait the command to complete\r | |
229 | \r | |
230 | @retval EFI_SUCCESS The data is transferred\r | |
d80ed2a7 | 231 | @retval EFI_SUCCESS No data to transfer\r |
232 | @retval EFI_NOT_READY The device return NAK to the transfer\r | |
e237e7ae | 233 | @retval Others Failed to transfer data\r |
234 | \r | |
235 | **/\r | |
e237e7ae | 236 | EFI_STATUS\r |
237 | UsbBotDataTransfer (\r | |
238 | IN USB_BOT_PROTOCOL *UsbBot,\r | |
239 | IN EFI_USB_DATA_DIRECTION DataDir,\r | |
240 | IN OUT UINT8 *Data,\r | |
241 | IN OUT UINTN *TransLen,\r | |
242 | IN UINT32 Timeout\r | |
243 | )\r | |
244 | {\r | |
245 | EFI_USB_ENDPOINT_DESCRIPTOR *Endpoint;\r | |
246 | EFI_STATUS Status;\r | |
247 | UINT32 Result;\r | |
248 | \r | |
249 | //\r | |
d80ed2a7 | 250 | // If no data to transfer, just return EFI_SUCCESS.\r |
e237e7ae | 251 | //\r |
252 | if ((DataDir == EfiUsbNoData) || (*TransLen == 0)) {\r | |
253 | return EFI_SUCCESS;\r | |
254 | }\r | |
255 | \r | |
256 | //\r | |
257 | // Select the endpoint then issue the transfer\r | |
258 | //\r | |
259 | if (DataDir == EfiUsbDataIn) {\r | |
260 | Endpoint = UsbBot->BulkInEndpoint;\r | |
261 | } else {\r | |
262 | Endpoint = UsbBot->BulkOutEndpoint;\r | |
263 | }\r | |
264 | \r | |
265 | Result = 0;\r | |
41e8ff27 | 266 | Timeout = Timeout / USB_MASS_1_MILLISECOND;\r |
e237e7ae | 267 | \r |
268 | Status = UsbBot->UsbIo->UsbBulkTransfer (\r | |
269 | UsbBot->UsbIo,\r | |
270 | Endpoint->EndpointAddress,\r | |
271 | Data,\r | |
272 | TransLen,\r | |
273 | Timeout,\r | |
274 | &Result\r | |
275 | );\r | |
276 | if (EFI_ERROR (Status)) {\r | |
e237e7ae | 277 | if (USB_IS_ERROR (Result, EFI_USB_ERR_STALL)) {\r |
e237e7ae | 278 | UsbClearEndpointStall (UsbBot->UsbIo, Endpoint->EndpointAddress);\r |
279 | } else if (USB_IS_ERROR (Result, EFI_USB_ERR_NAK)) {\r | |
280 | Status = EFI_NOT_READY;\r | |
281 | }\r | |
282 | }\r | |
283 | \r | |
284 | return Status;\r | |
285 | }\r | |
286 | \r | |
287 | \r | |
288 | /**\r | |
d80ed2a7 | 289 | Get the command execution status from device.\r |
290 | \r | |
291 | This function gets the command execution status from device.\r | |
292 | BOT transfer is composed of three phases: Command, Data, and Status.\r | |
293 | This is the Status phase.\r | |
e237e7ae | 294 | \r |
d80ed2a7 | 295 | This function returns the transfer status of the BOT's CSW status,\r |
296 | and returns the high level command execution result in Result. So\r | |
297 | even if EFI_SUCCESS is returned, the command may still have failed.\r | |
e237e7ae | 298 | \r |
d80ed2a7 | 299 | @param UsbBot The USB BOT device.\r |
300 | @param TransLen The expected length of the data.\r | |
301 | @param CmdStatus The result of the command execution.\r | |
302 | \r | |
303 | @retval EFI_SUCCESS Command execute result is retrieved and in the Result.\r | |
304 | @retval Other Error occurred when trying to get status.\r | |
e237e7ae | 305 | \r |
306 | **/\r | |
e237e7ae | 307 | EFI_STATUS\r |
308 | UsbBotGetStatus (\r | |
309 | IN USB_BOT_PROTOCOL *UsbBot,\r | |
310 | IN UINT32 TransLen,\r | |
311 | OUT UINT8 *CmdStatus\r | |
312 | )\r | |
313 | {\r | |
314 | USB_BOT_CSW Csw;\r | |
315 | UINTN Len;\r | |
316 | UINT8 Endpoint;\r | |
317 | EFI_STATUS Status;\r | |
318 | UINT32 Result;\r | |
319 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
320 | UINT32 Index;\r | |
321 | UINTN Timeout;\r | |
1c619535 | 322 | \r |
e237e7ae | 323 | *CmdStatus = USB_BOT_COMMAND_ERROR;\r |
324 | Status = EFI_DEVICE_ERROR;\r | |
325 | Endpoint = UsbBot->BulkInEndpoint->EndpointAddress;\r | |
326 | UsbIo = UsbBot->UsbIo;\r | |
41e8ff27 | 327 | Timeout = USB_BOT_RECV_CSW_TIMEOUT / USB_MASS_1_MILLISECOND;\r |
e237e7ae | 328 | \r |
41e8ff27 | 329 | for (Index = 0; Index < USB_BOT_RECV_CSW_RETRY; Index++) {\r |
e237e7ae | 330 | //\r |
d80ed2a7 | 331 | // Attemp to the read Command Status Wrapper from bulk in endpoint\r |
e237e7ae | 332 | //\r |
333 | ZeroMem (&Csw, sizeof (USB_BOT_CSW));\r | |
334 | Result = 0;\r | |
335 | Len = sizeof (USB_BOT_CSW);\r | |
336 | Status = UsbIo->UsbBulkTransfer (\r | |
337 | UsbIo,\r | |
338 | Endpoint,\r | |
339 | &Csw,\r | |
340 | &Len,\r | |
341 | Timeout,\r | |
342 | &Result\r | |
343 | );\r | |
344 | if (EFI_ERROR(Status)) {\r | |
e237e7ae | 345 | if (USB_IS_ERROR (Result, EFI_USB_ERR_STALL)) {\r |
e237e7ae | 346 | UsbClearEndpointStall (UsbIo, Endpoint);\r |
347 | }\r | |
348 | continue;\r | |
349 | }\r | |
350 | \r | |
351 | if (Csw.Signature != USB_BOT_CSW_SIGNATURE) {\r | |
352 | //\r | |
d80ed2a7 | 353 | // CSW is invalid, so perform reset recovery\r |
e237e7ae | 354 | //\r |
e237e7ae | 355 | Status = UsbBotResetDevice (UsbBot, FALSE);\r |
356 | } else if (Csw.CmdStatus == USB_BOT_COMMAND_ERROR) {\r | |
357 | //\r | |
d80ed2a7 | 358 | // Respond phase error also needs reset recovery\r |
e237e7ae | 359 | //\r |
e237e7ae | 360 | Status = UsbBotResetDevice (UsbBot, FALSE);\r |
361 | } else {\r | |
e237e7ae | 362 | *CmdStatus = Csw.CmdStatus;\r |
363 | break;\r | |
364 | }\r | |
365 | }\r | |
366 | //\r | |
d80ed2a7 | 367 | //The tag is increased even if there is an error.\r |
e237e7ae | 368 | //\r |
369 | UsbBot->CbwTag++;\r | |
370 | \r | |
371 | return Status;\r | |
372 | }\r | |
373 | \r | |
374 | \r | |
375 | /**\r | |
d80ed2a7 | 376 | Call the USB Mass Storage Class BOT protocol to issue\r |
cc5166ff | 377 | the command/data/status circle to execute the commands.\r |
e237e7ae | 378 | \r |
379 | @param Context The context of the BOT protocol, that is,\r | |
380 | USB_BOT_PROTOCOL\r | |
381 | @param Cmd The high level command\r | |
382 | @param CmdLen The command length\r | |
383 | @param DataDir The direction of the data transfer\r | |
384 | @param Data The buffer to hold data\r | |
385 | @param DataLen The length of the data\r | |
c7e39923 | 386 | @param Lun The number of logic unit\r |
e237e7ae | 387 | @param Timeout The time to wait command\r |
388 | @param CmdStatus The result of high level command execution\r | |
389 | \r | |
d80ed2a7 | 390 | @retval EFI_SUCCESS The command is executed successfully.\r |
cc5166ff | 391 | @retval Other Failed to excute command\r |
e237e7ae | 392 | \r |
393 | **/\r | |
e237e7ae | 394 | EFI_STATUS\r |
395 | UsbBotExecCommand (\r | |
396 | IN VOID *Context,\r | |
397 | IN VOID *Cmd,\r | |
398 | IN UINT8 CmdLen,\r | |
399 | IN EFI_USB_DATA_DIRECTION DataDir,\r | |
400 | IN VOID *Data,\r | |
401 | IN UINT32 DataLen,\r | |
c7e39923 | 402 | IN UINT8 Lun,\r |
e237e7ae | 403 | IN UINT32 Timeout,\r |
404 | OUT UINT32 *CmdStatus\r | |
405 | )\r | |
406 | {\r | |
407 | USB_BOT_PROTOCOL *UsbBot;\r | |
408 | EFI_STATUS Status;\r | |
409 | UINTN TransLen;\r | |
410 | UINT8 Result;\r | |
411 | \r | |
412 | *CmdStatus = USB_MASS_CMD_FAIL;\r | |
413 | UsbBot = (USB_BOT_PROTOCOL *) Context;\r | |
414 | \r | |
415 | //\r | |
416 | // Send the command to the device. Return immediately if device\r | |
417 | // rejects the command.\r | |
418 | //\r | |
c7e39923 | 419 | Status = UsbBotSendCommand (UsbBot, Cmd, CmdLen, DataDir, DataLen, Lun);\r |
e237e7ae | 420 | if (EFI_ERROR (Status)) {\r |
1c619535 | 421 | DEBUG ((EFI_D_ERROR, "UsbBotExecCommand: UsbBotSendCommand (%r)\n", Status));\r |
e237e7ae | 422 | return Status;\r |
423 | }\r | |
424 | \r | |
425 | //\r | |
426 | // Transfer the data. Don't return immediately even data transfer\r | |
427 | // failed. The host should attempt to receive the CSW no matter\r | |
d80ed2a7 | 428 | // whether it succeeds or fails.\r |
e237e7ae | 429 | //\r |
430 | TransLen = (UINTN) DataLen;\r | |
431 | UsbBotDataTransfer (UsbBot, DataDir, Data, &TransLen, Timeout);\r | |
432 | \r | |
433 | //\r | |
434 | // Get the status, if that succeeds, interpret the result\r | |
435 | //\r | |
436 | Status = UsbBotGetStatus (UsbBot, DataLen, &Result);\r | |
437 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 438 | DEBUG ((EFI_D_ERROR, "UsbBotExecCommand: UsbBotGetStatus (%r)\n", Status));\r |
e237e7ae | 439 | return Status;\r |
440 | }\r | |
441 | \r | |
442 | if (Result == 0) {\r | |
443 | *CmdStatus = USB_MASS_CMD_SUCCESS;\r | |
444 | }\r | |
445 | \r | |
446 | return EFI_SUCCESS;\r | |
447 | }\r | |
448 | \r | |
449 | \r | |
450 | /**\r | |
d80ed2a7 | 451 | Reset the USB mass storage device by BOT protocol.\r |
e237e7ae | 452 | \r |
453 | @param Context The context of the BOT protocol, that is,\r | |
cc5166ff | 454 | USB_BOT_PROTOCOL.\r |
d80ed2a7 | 455 | @param ExtendedVerification If FALSE, just issue Bulk-Only Mass Storage Reset request.\r |
456 | If TRUE, additionally reset parent hub port.\r | |
e237e7ae | 457 | \r |
cc5166ff | 458 | @retval EFI_SUCCESS The device is reset.\r |
459 | @retval Others Failed to reset the device..\r | |
e237e7ae | 460 | \r |
461 | **/\r | |
e237e7ae | 462 | EFI_STATUS\r |
463 | UsbBotResetDevice (\r | |
464 | IN VOID *Context,\r | |
d80ed2a7 | 465 | IN BOOLEAN ExtendedVerification\r |
e237e7ae | 466 | )\r |
467 | {\r | |
468 | USB_BOT_PROTOCOL *UsbBot;\r | |
469 | EFI_USB_DEVICE_REQUEST Request;\r | |
470 | EFI_STATUS Status;\r | |
471 | UINT32 Result;\r | |
472 | UINT32 Timeout;\r | |
473 | \r | |
474 | UsbBot = (USB_BOT_PROTOCOL *) Context;\r | |
475 | \r | |
476 | if (ExtendedVerification) {\r | |
477 | //\r | |
478 | // If we need to do strictly reset, reset its parent hub port\r | |
479 | //\r | |
480 | Status = UsbBot->UsbIo->UsbPortReset (UsbBot->UsbIo);\r | |
481 | if (EFI_ERROR (Status)) {\r | |
482 | return Status;\r | |
483 | }\r | |
484 | }\r | |
485 | \r | |
486 | //\r | |
d80ed2a7 | 487 | // Issue a class specific Bulk-Only Mass Storage Reset request,\r |
488 | // according to section 3.1 of USB Mass Storage Class Bulk-Only Transport Spec, v1.0.\r | |
e237e7ae | 489 | //\r |
d80ed2a7 | 490 | Request.RequestType = 0x21;\r |
e237e7ae | 491 | Request.Request = USB_BOT_RESET_REQUEST;\r |
492 | Request.Value = 0;\r | |
493 | Request.Index = UsbBot->Interface.InterfaceNumber;\r | |
494 | Request.Length = 0;\r | |
41e8ff27 | 495 | Timeout = USB_BOT_RESET_DEVICE_TIMEOUT / USB_MASS_1_MILLISECOND;\r |
e237e7ae | 496 | \r |
497 | Status = UsbBot->UsbIo->UsbControlTransfer (\r | |
498 | UsbBot->UsbIo,\r | |
499 | &Request,\r | |
500 | EfiUsbNoData,\r | |
501 | Timeout,\r | |
502 | NULL,\r | |
503 | 0,\r | |
504 | &Result\r | |
505 | );\r | |
506 | \r | |
507 | if (EFI_ERROR (Status)) {\r | |
e237e7ae | 508 | return Status;\r |
509 | }\r | |
510 | \r | |
511 | //\r | |
512 | // The device shall NAK the host's request until the reset is\r | |
513 | // complete. We can use this to sync the device and host. For\r | |
d80ed2a7 | 514 | // now just stall 100ms to wait for the device.\r |
e237e7ae | 515 | //\r |
41e8ff27 | 516 | gBS->Stall (USB_BOT_RESET_DEVICE_STALL);\r |
e237e7ae | 517 | \r |
518 | //\r | |
519 | // Clear the Bulk-In and Bulk-Out stall condition.\r | |
520 | //\r | |
521 | UsbClearEndpointStall (UsbBot->UsbIo, UsbBot->BulkInEndpoint->EndpointAddress);\r | |
522 | UsbClearEndpointStall (UsbBot->UsbIo, UsbBot->BulkOutEndpoint->EndpointAddress);\r | |
d80ed2a7 | 523 | \r |
e237e7ae | 524 | return Status;\r |
525 | }\r | |
526 | \r | |
c7e39923 | 527 | \r |
cc5166ff | 528 | /**\r |
d80ed2a7 | 529 | Get the max LUN (Logical Unit Number) of USB mass storage device.\r |
c7e39923 | 530 | \r |
cc5166ff | 531 | @param Context The context of the BOT protocol, that is, USB_BOT_PROTOCOL\r |
d80ed2a7 | 532 | @param MaxLun Return pointer to the max number of LUN. (e.g. MaxLun=1 means LUN0 and\r |
533 | LUN1 in all.)\r | |
c7e39923 | 534 | \r |
d80ed2a7 | 535 | @retval EFI_SUCCESS Max LUN is got successfully.\r |
536 | @retval Others Fail to execute this request.\r | |
c7e39923 | 537 | \r |
cc5166ff | 538 | **/\r |
c7e39923 | 539 | EFI_STATUS\r |
540 | UsbBotGetMaxLun (\r | |
541 | IN VOID *Context,\r | |
d80ed2a7 | 542 | OUT UINT8 *MaxLun\r |
c7e39923 | 543 | )\r |
c7e39923 | 544 | {\r |
545 | USB_BOT_PROTOCOL *UsbBot;\r | |
546 | EFI_USB_DEVICE_REQUEST Request;\r | |
547 | EFI_STATUS Status;\r | |
548 | UINT32 Result;\r | |
549 | UINT32 Timeout;\r | |
550 | \r | |
551 | ASSERT (Context);\r | |
552 | \r | |
553 | UsbBot = (USB_BOT_PROTOCOL *) Context;\r | |
554 | \r | |
555 | //\r | |
556 | // Issue a class specific Bulk-Only Mass Storage get max lun reqest.\r | |
d80ed2a7 | 557 | // according to section 3.2 of USB Mass Storage Class Bulk-Only Transport Spec, v1.0.\r |
c7e39923 | 558 | //\r |
d80ed2a7 | 559 | Request.RequestType = 0xA1;\r |
c7e39923 | 560 | Request.Request = USB_BOT_GETLUN_REQUEST;\r |
561 | Request.Value = 0;\r | |
562 | Request.Index = UsbBot->Interface.InterfaceNumber;\r | |
563 | Request.Length = 1;\r | |
564 | Timeout = USB_BOT_RESET_DEVICE_TIMEOUT / USB_MASS_1_MILLISECOND;\r | |
565 | \r | |
566 | Status = UsbBot->UsbIo->UsbControlTransfer (\r | |
567 | UsbBot->UsbIo,\r | |
568 | &Request,\r | |
569 | EfiUsbDataIn,\r | |
570 | Timeout,\r | |
d80ed2a7 | 571 | (VOID *) MaxLun,\r |
c7e39923 | 572 | 1,\r |
573 | &Result\r | |
574 | );\r | |
575 | \r | |
c7e39923 | 576 | return Status;\r |
577 | }\r | |
e237e7ae | 578 | \r |
579 | /**\r | |
cc5166ff | 580 | Clean up the resource used by this BOT protocol.\r |
e237e7ae | 581 | \r |
d80ed2a7 | 582 | @param Context The context of the BOT protocol, that is, USB_BOT_PROTOCOL.\r |
e237e7ae | 583 | \r |
d80ed2a7 | 584 | @retval EFI_SUCCESS The resource is cleaned up.\r |
e237e7ae | 585 | \r |
586 | **/\r | |
e237e7ae | 587 | EFI_STATUS\r |
d80ed2a7 | 588 | UsbBotCleanUp (\r |
e237e7ae | 589 | IN VOID *Context\r |
590 | )\r | |
591 | {\r | |
592 | gBS->FreePool (Context);\r | |
593 | return EFI_SUCCESS;\r | |
594 | }\r | |
595 | \r |