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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 | UsbMassImpl.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | The implementation of USB mass storage class device driver.\r | |
19 | The command set supported is "USB Mass Storage Specification\r | |
20 | for Bootability".\r | |
21 | \r | |
22 | Revision History\r | |
23 | \r | |
24 | \r | |
25 | **/\r | |
26 | \r | |
27 | #include "UsbMassImpl.h"\r | |
28 | \r | |
29 | //\r | |
30 | // The underlying transport protocol. CBI support isn't included\r | |
31 | // in the current build. It is being obseleted by the standard\r | |
32 | // body. If you want to enable it, remove the if directive here,\r | |
33 | // then add the UsbMassCbi.c/.h to the driver's inf file.\r | |
34 | //\r | |
35 | STATIC\r | |
36 | USB_MASS_TRANSPORT *mUsbMassTransport[] = {\r | |
37 | &mUsbCbi0Transport,\r | |
38 | &mUsbCbi1Transport,\r | |
39 | &mUsbBotTransport,\r | |
40 | NULL\r | |
41 | };\r | |
42 | \r | |
43 | UINTN mUsbMscInfo = DEBUG_INFO;\r | |
44 | UINTN mUsbMscError = DEBUG_ERROR;\r | |
45 | \r | |
46 | \r | |
47 | /**\r | |
48 | Retrieve the media parameters such as disk gemotric for the\r | |
49 | device's BLOCK IO protocol.\r | |
50 | \r | |
51 | @param UsbMass The USB mass storage device\r | |
52 | \r | |
53 | @retval EFI_SUCCESS The media parameters is updated successfully.\r | |
54 | @retval Others Failed to get the media parameters.\r | |
55 | \r | |
56 | **/\r | |
57 | EFI_STATUS\r | |
58 | UsbMassInitMedia (\r | |
59 | IN USB_MASS_DEVICE *UsbMass\r | |
60 | )\r | |
61 | {\r | |
62 | EFI_BLOCK_IO_MEDIA *Media;\r | |
63 | EFI_STATUS Status;\r | |
64 | UINTN Index;\r | |
65 | \r | |
66 | Media = &UsbMass->BlockIoMedia;\r | |
67 | \r | |
68 | //\r | |
69 | // Initialize the MediaPrsent/ReadOnly and others to the default.\r | |
70 | // We are not forced to get it right at this time, check UEFI2.0\r | |
71 | // spec for more information:\r | |
72 | //\r | |
73 | // MediaPresent: This field shows the media present status as\r | |
74 | // of the most recent ReadBlocks or WriteBlocks call.\r | |
75 | //\r | |
76 | // ReadOnly : This field shows the read-only status as of the\r | |
77 | // recent WriteBlocks call.\r | |
78 | //\r | |
79 | // but remember to update MediaId/MediaPresent/ReadOnly status\r | |
80 | // after ReadBlocks and WriteBlocks\r | |
81 | //\r | |
82 | Media->MediaPresent = FALSE;\r | |
83 | Media->LogicalPartition = FALSE;\r | |
84 | Media->ReadOnly = FALSE;\r | |
85 | Media->WriteCaching = FALSE;\r | |
86 | Media->IoAlign = 0;\r | |
87 | \r | |
88 | //\r | |
89 | // Some device may spend several seconds before it is ready.\r | |
90 | // Try several times before giving up. Wait 5s at most.\r | |
91 | //\r | |
92 | Status = EFI_SUCCESS;\r | |
93 | \r | |
41e8ff27 | 94 | for (Index = 0; Index < USB_BOOT_INIT_MEDIA_RETRY; Index++) {\r |
e237e7ae | 95 | \r |
96 | Status = UsbBootGetParams (UsbMass);\r | |
97 | if ((Status != EFI_MEDIA_CHANGED)\r | |
98 | && (Status != EFI_NOT_READY)\r | |
99 | && (Status != EFI_TIMEOUT)) {\r | |
100 | break;\r | |
101 | }\r | |
102 | \r | |
103 | Status = UsbBootIsUnitReady (UsbMass);\r | |
104 | if (EFI_ERROR (Status)) {\r | |
41e8ff27 | 105 | gBS->Stall (USB_BOOT_RETRY_UNIT_READY_STALL * (Index + 1)); \r |
e237e7ae | 106 | }\r |
107 | \r | |
108 | }\r | |
109 | \r | |
110 | return Status;\r | |
111 | }\r | |
112 | \r | |
113 | \r | |
114 | /**\r | |
115 | Reset the block device. ExtendedVerification is ignored for this.\r | |
116 | \r | |
117 | @param This The BLOCK IO protocol\r | |
118 | @param ExtendedVerification Whether to execute extended verfication.\r | |
119 | \r | |
120 | @retval EFI_SUCCESS The device is successfully resetted.\r | |
121 | @retval Others Failed to reset the device.\r | |
122 | \r | |
123 | **/\r | |
124 | EFI_STATUS\r | |
125 | UsbMassReset (\r | |
126 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
127 | IN BOOLEAN ExtendedVerification\r | |
128 | )\r | |
129 | {\r | |
130 | USB_MASS_DEVICE *UsbMass;\r | |
41e8ff27 | 131 | EFI_TPL OldTpl;\r |
132 | EFI_STATUS Status;\r | |
133 | \r | |
134 | OldTpl = gBS->RaiseTPL (USB_MASS_TPL);\r | |
e237e7ae | 135 | \r |
136 | UsbMass = USB_MASS_DEVICE_FROM_BLOCKIO (This);\r | |
41e8ff27 | 137 | Status = UsbMass->Transport->Reset (UsbMass->Context, ExtendedVerification);\r |
138 | \r | |
139 | gBS->RestoreTPL (OldTpl);\r | |
140 | \r | |
141 | return Status;\r | |
e237e7ae | 142 | }\r |
143 | \r | |
144 | \r | |
145 | /**\r | |
146 | Read some blocks of data from the block device.\r | |
147 | \r | |
148 | @param This The Block IO protocol\r | |
149 | @param MediaId The media's ID of the device for current request\r | |
150 | @param Lba The start block number\r | |
151 | @param BufferSize The size of buffer to read data in\r | |
152 | @param Buffer The buffer to read data to\r | |
153 | \r | |
154 | @retval EFI_SUCCESS The data is successfully read\r | |
155 | @retval EFI_NO_MEDIA Media isn't present\r | |
156 | @retval EFI_MEDIA_CHANGED The device media has been changed, that is,\r | |
157 | MediaId changed\r | |
158 | @retval EFI_INVALID_PARAMETER Some parameters are invalid, such as Buffer is\r | |
159 | NULL.\r | |
160 | @retval EFI_BAD_BUFFER_SIZE The buffer size isn't a multiple of media's block\r | |
161 | size, or overflow the last block number.\r | |
162 | \r | |
163 | **/\r | |
164 | EFI_STATUS\r | |
165 | UsbMassReadBlocks (\r | |
166 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
167 | IN UINT32 MediaId,\r | |
168 | IN EFI_LBA Lba,\r | |
169 | IN UINTN BufferSize,\r | |
170 | OUT VOID *Buffer\r | |
171 | )\r | |
172 | {\r | |
173 | USB_MASS_DEVICE *UsbMass;\r | |
174 | EFI_BLOCK_IO_MEDIA *Media;\r | |
175 | EFI_STATUS Status;\r | |
41e8ff27 | 176 | EFI_TPL OldTpl;\r |
e237e7ae | 177 | UINTN TotalBlock;\r |
41e8ff27 | 178 | \r |
179 | OldTpl = gBS->RaiseTPL (USB_MASS_TPL);\r | |
e237e7ae | 180 | UsbMass = USB_MASS_DEVICE_FROM_BLOCKIO (This);\r |
181 | Media = &UsbMass->BlockIoMedia;\r | |
182 | \r | |
183 | //\r | |
184 | // First, validate the parameters\r | |
185 | //\r | |
186 | if ((Buffer == NULL) || (BufferSize == 0)) {\r | |
41e8ff27 | 187 | Status = EFI_INVALID_PARAMETER;\r |
188 | goto ON_EXIT;\r | |
e237e7ae | 189 | }\r |
41e8ff27 | 190 | \r |
e237e7ae | 191 | //\r |
41e8ff27 | 192 | // If it is a removable media, such as CD-Rom or Usb-Floppy,\r |
193 | // need to detect the media before each rw. While some of \r | |
194 | // Usb-Flash is marked as removable media.\r | |
195 | // \r | |
196 | // \r | |
197 | if (Media->RemovableMedia == TRUE) {\r | |
198 | Status = UsbBootDetectMedia (UsbMass);\r | |
199 | if (EFI_ERROR (Status)) {\r | |
200 | DEBUG ((mUsbMscError, "UsbMassReadBlocks: UsbBootDetectMedia (%r)\n", Status));\r | |
201 | goto ON_EXIT;\r | |
202 | } \r | |
e237e7ae | 203 | }\r |
41e8ff27 | 204 | \r |
e237e7ae | 205 | //\r |
206 | // Make sure BlockSize and LBA is consistent with BufferSize\r | |
207 | //\r | |
208 | if ((BufferSize % Media->BlockSize) != 0) {\r | |
41e8ff27 | 209 | Status = EFI_BAD_BUFFER_SIZE;\r |
210 | goto ON_EXIT;\r | |
e237e7ae | 211 | }\r |
212 | \r | |
213 | TotalBlock = BufferSize / Media->BlockSize;\r | |
214 | \r | |
215 | if (Lba + TotalBlock - 1 > Media->LastBlock) {\r | |
41e8ff27 | 216 | Status = EFI_BAD_BUFFER_SIZE;\r |
217 | goto ON_EXIT;\r | |
e237e7ae | 218 | }\r |
41e8ff27 | 219 | \r |
e237e7ae | 220 | Status = UsbBootReadBlocks (UsbMass, (UINT32) Lba, TotalBlock, Buffer);\r |
221 | if (EFI_ERROR (Status)) {\r | |
222 | DEBUG ((mUsbMscError, "UsbMassReadBlocks: UsbBootReadBlocks (%r) -> Reset\n", Status));\r | |
223 | UsbMassReset (This, TRUE);\r | |
224 | }\r | |
225 | \r | |
41e8ff27 | 226 | ON_EXIT:\r |
227 | gBS->RestoreTPL (OldTpl);\r | |
e237e7ae | 228 | return Status;\r |
229 | }\r | |
230 | \r | |
231 | \r | |
232 | /**\r | |
233 | Write some blocks of data to the block device.\r | |
234 | \r | |
235 | @param This The Block IO protocol\r | |
236 | @param MediaId The media's ID of the device for current request\r | |
237 | @param Lba The start block number\r | |
238 | @param BufferSize The size of buffer to write data to\r | |
239 | @param Buffer The buffer to write data to\r | |
240 | \r | |
241 | @retval EFI_SUCCESS The data is successfully written\r | |
242 | @retval EFI_NO_MEDIA Media isn't present\r | |
243 | @retval EFI_MEDIA_CHANGED The device media has been changed, that is,\r | |
244 | MediaId changed\r | |
245 | @retval EFI_INVALID_PARAMETER Some parameters are invalid, such as Buffer is\r | |
246 | NULL.\r | |
247 | @retval EFI_BAD_BUFFER_SIZE The buffer size isn't a multiple of media's block\r | |
248 | size,\r | |
249 | \r | |
250 | **/\r | |
251 | EFI_STATUS\r | |
252 | UsbMassWriteBlocks (\r | |
253 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
254 | IN UINT32 MediaId,\r | |
255 | IN EFI_LBA Lba,\r | |
256 | IN UINTN BufferSize,\r | |
257 | IN VOID *Buffer\r | |
258 | )\r | |
259 | {\r | |
260 | USB_MASS_DEVICE *UsbMass;\r | |
261 | EFI_BLOCK_IO_MEDIA *Media;\r | |
262 | EFI_STATUS Status;\r | |
41e8ff27 | 263 | EFI_TPL OldTpl;\r |
e237e7ae | 264 | UINTN TotalBlock;\r |
265 | \r | |
41e8ff27 | 266 | OldTpl = gBS->RaiseTPL (USB_MASS_TPL);\r |
e237e7ae | 267 | UsbMass = USB_MASS_DEVICE_FROM_BLOCKIO (This);\r |
268 | Media = &UsbMass->BlockIoMedia;\r | |
269 | \r | |
270 | //\r | |
271 | // First, validate the parameters\r | |
272 | //\r | |
273 | if ((Buffer == NULL) || (BufferSize == 0)) {\r | |
41e8ff27 | 274 | Status = EFI_INVALID_PARAMETER;\r |
275 | goto ON_EXIT;\r | |
e237e7ae | 276 | }\r |
41e8ff27 | 277 | \r |
e237e7ae | 278 | //\r |
41e8ff27 | 279 | // If it is a removable media, such as CD-Rom or Usb-Floppy,\r |
280 | // need to detect the media before each rw. While some of \r | |
281 | // Usb-Flash is marked as removable media.\r | |
282 | // \r | |
283 | // \r | |
284 | if (Media->RemovableMedia == TRUE) {\r | |
285 | Status = UsbBootDetectMedia (UsbMass);\r | |
286 | if (EFI_ERROR (Status)) {\r | |
287 | DEBUG ((mUsbMscError, "UsbMassWriteBlocks: UsbBootDetectMedia (%r)\n", Status));\r | |
288 | goto ON_EXIT;\r | |
289 | } \r | |
e237e7ae | 290 | }\r |
41e8ff27 | 291 | \r |
e237e7ae | 292 | //\r |
293 | // Make sure BlockSize and LBA is consistent with BufferSize\r | |
294 | //\r | |
295 | if ((BufferSize % Media->BlockSize) != 0) {\r | |
41e8ff27 | 296 | Status = EFI_BAD_BUFFER_SIZE;\r |
297 | goto ON_EXIT;\r | |
e237e7ae | 298 | }\r |
299 | \r | |
300 | TotalBlock = BufferSize / Media->BlockSize;\r | |
301 | \r | |
302 | if (Lba + TotalBlock - 1 > Media->LastBlock) {\r | |
41e8ff27 | 303 | Status = EFI_BAD_BUFFER_SIZE;\r |
304 | goto ON_EXIT;\r | |
e237e7ae | 305 | }\r |
41e8ff27 | 306 | \r |
e237e7ae | 307 | //\r |
308 | // Try to write the data even the device is marked as ReadOnly,\r | |
309 | // and clear the status should the write succeed.\r | |
310 | //\r | |
311 | Status = UsbBootWriteBlocks (UsbMass, (UINT32) Lba, TotalBlock, Buffer);\r | |
312 | if (EFI_ERROR (Status)) {\r | |
313 | DEBUG ((mUsbMscError, "UsbMassWriteBlocks: UsbBootWriteBlocks (%r) -> Reset\n", Status));\r | |
314 | UsbMassReset (This, TRUE);\r | |
315 | }\r | |
41e8ff27 | 316 | \r |
317 | ON_EXIT:\r | |
318 | gBS->RestoreTPL (OldTpl);\r | |
e237e7ae | 319 | return Status;\r |
320 | }\r | |
321 | \r | |
322 | \r | |
323 | /**\r | |
324 | Flush the cached writes to disks. USB mass storage device doesn't\r | |
325 | support write cache, so return EFI_SUCCESS directly.\r | |
326 | \r | |
327 | @param This The BLOCK IO protocol\r | |
328 | \r | |
329 | @retval EFI_SUCCESS Always returns success\r | |
330 | \r | |
331 | **/\r | |
332 | EFI_STATUS\r | |
333 | UsbMassFlushBlocks (\r | |
334 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
335 | )\r | |
336 | {\r | |
337 | return EFI_SUCCESS;\r | |
338 | }\r | |
339 | \r | |
340 | \r | |
341 | /**\r | |
342 | Check whether the controller is a supported USB mass storage.\r | |
343 | \r | |
344 | @param This The USB mass driver's driver binding.\r | |
345 | @param Controller The device to test against.\r | |
346 | @param RemainingDevicePath The remaining device path\r | |
347 | \r | |
348 | @retval EFI_SUCCESS This device is a supported USB mass storage.\r | |
349 | @retval EFI_UNSUPPORTED The device isn't supported\r | |
350 | @retval Others Some error happened.\r | |
351 | \r | |
352 | **/\r | |
353 | EFI_STATUS\r | |
354 | EFIAPI\r | |
355 | USBMassDriverBindingSupported (\r | |
356 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
357 | IN EFI_HANDLE Controller,\r | |
358 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
359 | )\r | |
360 | {\r | |
361 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
362 | EFI_USB_INTERFACE_DESCRIPTOR Interface;\r | |
363 | USB_MASS_TRANSPORT *Transport;\r | |
364 | EFI_STATUS Status;\r | |
365 | INTN Index;\r | |
366 | \r | |
367 | //\r | |
368 | // Check whether the controlelr support USB_IO\r | |
369 | //\r | |
370 | Status = gBS->OpenProtocol (\r | |
371 | Controller,\r | |
372 | &gEfiUsbIoProtocolGuid,\r | |
c52fa98c | 373 | (VOID **) &UsbIo,\r |
e237e7ae | 374 | This->DriverBindingHandle,\r |
375 | Controller,\r | |
376 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
377 | );\r | |
378 | if (EFI_ERROR (Status)) {\r | |
379 | return Status;\r | |
380 | }\r | |
381 | \r | |
382 | //\r | |
383 | // Get the interface to check the USB class and find a transport\r | |
384 | // protocol handler.\r | |
385 | //\r | |
386 | Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &Interface);\r | |
387 | if (EFI_ERROR (Status)) {\r | |
388 | goto ON_EXIT;\r | |
389 | }\r | |
390 | \r | |
391 | Status = EFI_UNSUPPORTED;\r | |
392 | \r | |
393 | if (Interface.InterfaceClass != USB_MASS_STORE_CLASS) {\r | |
394 | goto ON_EXIT;\r | |
395 | }\r | |
396 | \r | |
397 | for (Index = 0; mUsbMassTransport[Index] != NULL; Index++) {\r | |
398 | Transport = mUsbMassTransport[Index];\r | |
399 | if (Interface.InterfaceProtocol == Transport->Protocol) {\r | |
400 | Status = Transport->Init (UsbIo, Controller, NULL);\r | |
401 | break;\r | |
402 | }\r | |
403 | }\r | |
404 | \r | |
405 | DEBUG ((mUsbMscInfo, "Found a USB mass store device %r\n", Status));\r | |
406 | \r | |
407 | ON_EXIT:\r | |
408 | gBS->CloseProtocol (\r | |
409 | Controller,\r | |
410 | &gEfiUsbIoProtocolGuid,\r | |
411 | This->DriverBindingHandle,\r | |
412 | Controller\r | |
413 | );\r | |
414 | \r | |
415 | return Status;\r | |
416 | }\r | |
417 | \r | |
418 | \r | |
419 | /**\r | |
420 | Start the USB mass storage device on the controller. It will\r | |
421 | install a BLOCK_IO protocol on the device if everything is OK.\r | |
422 | \r | |
423 | @param This The USB mass storage driver binding.\r | |
424 | @param Controller The USB mass storage device to start on\r | |
425 | @param RemainingDevicePath The remaining device path.\r | |
426 | \r | |
427 | @retval EFI_SUCCESS The driver has started on the device.\r | |
428 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory\r | |
429 | @retval Others Failed to start the driver on the device.\r | |
430 | \r | |
431 | **/\r | |
432 | EFI_STATUS\r | |
433 | EFIAPI\r | |
434 | USBMassDriverBindingStart (\r | |
435 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
436 | IN EFI_HANDLE Controller,\r | |
437 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
438 | )\r | |
439 | {\r | |
440 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
441 | EFI_USB_INTERFACE_DESCRIPTOR Interface;\r | |
442 | USB_MASS_DEVICE *UsbMass;\r | |
443 | USB_MASS_TRANSPORT *Transport;\r | |
444 | EFI_STATUS Status;\r | |
445 | UINTN Index;\r | |
446 | \r | |
447 | Status = gBS->OpenProtocol (\r | |
448 | Controller,\r | |
449 | &gEfiUsbIoProtocolGuid,\r | |
c52fa98c | 450 | (VOID **) &UsbIo,\r |
e237e7ae | 451 | This->DriverBindingHandle,\r |
452 | Controller,\r | |
453 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
454 | );\r | |
455 | \r | |
456 | if (EFI_ERROR (Status)) {\r | |
457 | return Status;\r | |
458 | }\r | |
459 | \r | |
460 | UsbMass = AllocateZeroPool (sizeof (USB_MASS_DEVICE));\r | |
461 | if (UsbMass == NULL) {\r | |
462 | return EFI_OUT_OF_RESOURCES;\r | |
463 | }\r | |
464 | \r | |
465 | //\r | |
466 | // Initialize the transport protocols\r | |
467 | //\r | |
468 | Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &Interface);\r | |
469 | if (EFI_ERROR (Status)) {\r | |
470 | DEBUG ((mUsbMscError, "USBMassDriverBindingStart: UsbIo->UsbGetInterfaceDescriptor (%r)\n", Status));\r | |
471 | goto ON_ERROR;\r | |
472 | }\r | |
473 | \r | |
474 | Status = EFI_UNSUPPORTED;\r | |
475 | \r | |
476 | for (Index = 0; mUsbMassTransport[Index] != NULL; Index++) {\r | |
477 | Transport = mUsbMassTransport[Index];\r | |
478 | \r | |
479 | if (Interface.InterfaceProtocol == Transport->Protocol) {\r | |
480 | UsbMass->Transport = Transport;\r | |
481 | Status = Transport->Init (UsbIo, Controller, &UsbMass->Context);\r | |
482 | break;\r | |
483 | }\r | |
484 | }\r | |
485 | \r | |
486 | if (EFI_ERROR (Status)) {\r | |
487 | DEBUG ((mUsbMscError, "USBMassDriverBindingStart: Transport->Init (%r)\n", Status));\r | |
488 | goto ON_ERROR;\r | |
489 | }\r | |
490 | \r | |
491 | UsbMass->Signature = USB_MASS_SIGNATURE;\r | |
492 | UsbMass->Controller = Controller;\r | |
493 | UsbMass->UsbIo = UsbIo;\r | |
494 | UsbMass->BlockIo.Media = &UsbMass->BlockIoMedia;\r | |
495 | UsbMass->BlockIo.Reset = UsbMassReset;\r | |
496 | UsbMass->BlockIo.ReadBlocks = UsbMassReadBlocks;\r | |
497 | UsbMass->BlockIo.WriteBlocks = UsbMassWriteBlocks;\r | |
498 | UsbMass->BlockIo.FlushBlocks = UsbMassFlushBlocks;\r | |
499 | UsbMass->OpticalStorage = FALSE;\r | |
500 | \r | |
501 | //\r | |
502 | // Get the storage's parameters, such as last block number.\r | |
503 | // then install the BLOCK_IO\r | |
504 | //\r | |
505 | Status = UsbMassInitMedia (UsbMass);\r | |
506 | if (!EFI_ERROR (Status)) {\r | |
507 | if ((UsbMass->Pdt != USB_PDT_DIRECT_ACCESS) &&\r | |
508 | (UsbMass->Pdt != USB_PDT_CDROM) &&\r | |
509 | (UsbMass->Pdt != USB_PDT_OPTICAL) &&\r | |
510 | (UsbMass->Pdt != USB_PDT_SIMPLE_DIRECT)) {\r | |
511 | DEBUG ((mUsbMscError, "USBMassDriverBindingStart: Found an unsupported peripheral type[%d]\n", UsbMass->Pdt));\r | |
512 | goto ON_ERROR;\r | |
513 | }\r | |
514 | } else if (Status != EFI_NO_MEDIA){\r | |
515 | DEBUG ((mUsbMscError, "USBMassDriverBindingStart: UsbMassInitMedia (%r)\n", Status));\r | |
516 | goto ON_ERROR;\r | |
517 | }\r | |
518 | \r | |
519 | Status = gBS->InstallProtocolInterface (\r | |
520 | &Controller,\r | |
521 | &gEfiBlockIoProtocolGuid,\r | |
522 | EFI_NATIVE_INTERFACE,\r | |
523 | &UsbMass->BlockIo\r | |
524 | );\r | |
525 | if (EFI_ERROR (Status)) {\r | |
526 | goto ON_ERROR;\r | |
527 | }\r | |
528 | \r | |
529 | return EFI_SUCCESS;\r | |
530 | \r | |
531 | ON_ERROR:\r | |
532 | gBS->FreePool (UsbMass);\r | |
533 | \r | |
534 | gBS->CloseProtocol (\r | |
535 | Controller,\r | |
536 | &gEfiUsbIoProtocolGuid,\r | |
537 | This->DriverBindingHandle,\r | |
538 | Controller\r | |
539 | );\r | |
540 | \r | |
541 | return Status;\r | |
542 | }\r | |
543 | \r | |
544 | \r | |
545 | /**\r | |
546 | Stop controlling the device.\r | |
547 | \r | |
548 | @param This The USB mass storage driver binding\r | |
549 | @param Controller The device controller controlled by the driver.\r | |
550 | @param NumberOfChildren The number of children of this device\r | |
551 | @param ChildHandleBuffer The buffer of children handle.\r | |
552 | \r | |
553 | @retval EFI_SUCCESS The driver stopped from controlling the device.\r | |
554 | @retval Others Failed to stop the driver\r | |
555 | \r | |
556 | **/\r | |
557 | EFI_STATUS\r | |
558 | EFIAPI\r | |
559 | USBMassDriverBindingStop (\r | |
560 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
561 | IN EFI_HANDLE Controller,\r | |
562 | IN UINTN NumberOfChildren,\r | |
563 | IN EFI_HANDLE *ChildHandleBuffer\r | |
564 | )\r | |
565 | {\r | |
566 | EFI_STATUS Status;\r | |
567 | USB_MASS_DEVICE *UsbMass;\r | |
568 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
569 | \r | |
570 | //\r | |
571 | // First, get our context back from the BLOCK_IO\r | |
572 | //\r | |
573 | Status = gBS->OpenProtocol (\r | |
574 | Controller,\r | |
575 | &gEfiBlockIoProtocolGuid,\r | |
c52fa98c | 576 | (VOID **) &BlockIo,\r |
e237e7ae | 577 | This->DriverBindingHandle,\r |
578 | Controller,\r | |
579 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
580 | );\r | |
581 | \r | |
582 | if (EFI_ERROR (Status)) {\r | |
583 | return Status;\r | |
584 | }\r | |
585 | \r | |
586 | UsbMass = USB_MASS_DEVICE_FROM_BLOCKIO (BlockIo);\r | |
587 | \r | |
588 | //\r | |
589 | // Uninstall Block I/O protocol from the device handle,\r | |
590 | // then call the transport protocol to stop itself.\r | |
591 | //\r | |
592 | Status = gBS->UninstallProtocolInterface (\r | |
593 | Controller,\r | |
594 | &gEfiBlockIoProtocolGuid,\r | |
595 | &UsbMass->BlockIo\r | |
596 | );\r | |
597 | if (EFI_ERROR (Status)) {\r | |
598 | return Status;\r | |
599 | }\r | |
600 | \r | |
601 | gBS->CloseProtocol (\r | |
602 | Controller,\r | |
603 | &gEfiUsbIoProtocolGuid,\r | |
604 | This->DriverBindingHandle,\r | |
605 | Controller\r | |
606 | );\r | |
607 | \r | |
608 | UsbMass->Transport->Fini (UsbMass->Context);\r | |
609 | gBS->FreePool (UsbMass);\r | |
610 | \r | |
611 | return EFI_SUCCESS;\r | |
612 | }\r | |
613 | \r | |
614 | EFI_DRIVER_BINDING_PROTOCOL gUSBMassDriverBinding = {\r | |
615 | USBMassDriverBindingSupported,\r | |
616 | USBMassDriverBindingStart,\r | |
617 | USBMassDriverBindingStop,\r | |
618 | 0x11,\r | |
619 | NULL,\r | |
620 | NULL\r | |
621 | };\r | |
622 | \r | |
e237e7ae | 623 | EFI_STATUS\r |
624 | EFIAPI\r | |
625 | USBMassStorageEntryPoint (\r | |
626 | IN EFI_HANDLE ImageHandle,\r | |
627 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
628 | )\r | |
629 | /*++\r | |
630 | \r | |
631 | Routine Description:\r | |
632 | \r | |
633 | The entry point for the driver, which will install the driver binding and\r | |
634 | component name protocol\r | |
635 | \r | |
636 | Arguments:\r | |
637 | \r | |
638 | ImageHandle - The image handle of this driver\r | |
639 | SystemTable - The system table\r | |
640 | \r | |
641 | Returns:\r | |
642 | \r | |
643 | EFI_SUCCESS - the protocols are installed OK\r | |
644 | Others - Failed to install protocols.\r | |
645 | \r | |
646 | --*/\r | |
647 | {\r | |
648 | EFI_STATUS Status;\r | |
649 | \r | |
650 | //\r | |
651 | // Install driver binding protocol\r | |
652 | //\r | |
62b9bb55 | 653 | Status = EfiLibInstallDriverBindingComponentName2 (\r |
e237e7ae | 654 | ImageHandle,\r |
655 | SystemTable,\r | |
656 | &gUSBMassDriverBinding,\r | |
657 | ImageHandle,\r | |
658 | &gUsbMassStorageComponentName,\r | |
62b9bb55 | 659 | &gUsbMassStorageComponentName2\r |
e237e7ae | 660 | );\r |
661 | \r | |
662 | return Status;\r | |
663 | }\r |