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878ddf1f | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006, 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 | UsbMassStorage.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | USB Mass Storage Driver\r | |
19 | \r | |
20 | Revision History\r | |
21 | \r | |
22 | --*/\r | |
23 | \r | |
24 | #include "UsbMassStorage.h"\r | |
25 | #include "UsbMassStorageHelper.h"\r | |
26 | \r | |
27 | extern EFI_COMPONENT_NAME_PROTOCOL gUsbMassStorageComponentName;\r | |
28 | \r | |
29 | //\r | |
30 | // Prototypes\r | |
31 | // Driver model protocol interface\r | |
32 | //\r | |
33 | EFI_STATUS\r | |
34 | EFIAPI\r | |
35 | USBMassStorageDriverBindingEntryPoint (\r | |
36 | IN EFI_HANDLE ImageHandle,\r | |
37 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
38 | );\r | |
39 | \r | |
40 | EFI_STATUS\r | |
41 | EFIAPI\r | |
42 | USBFloppyDriverBindingSupported (\r | |
43 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
44 | IN EFI_HANDLE Controller,\r | |
45 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
46 | );\r | |
47 | \r | |
48 | EFI_STATUS\r | |
49 | EFIAPI\r | |
50 | USBFloppyDriverBindingStart (\r | |
51 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
52 | IN EFI_HANDLE Controller,\r | |
53 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
54 | );\r | |
55 | \r | |
56 | EFI_STATUS\r | |
57 | EFIAPI\r | |
58 | USBFloppyDriverBindingStop (\r | |
59 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
60 | IN EFI_HANDLE Controller,\r | |
61 | IN UINTN NumberOfChildren,\r | |
62 | IN EFI_HANDLE *ChildHandleBuffer\r | |
63 | );\r | |
64 | \r | |
65 | //\r | |
66 | // Block I/O Protocol Interface\r | |
67 | //\r | |
68 | STATIC\r | |
69 | EFI_STATUS\r | |
70 | EFIAPI\r | |
71 | USBFloppyReset (\r | |
72 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
73 | IN BOOLEAN ExtendedVerification\r | |
74 | );\r | |
75 | \r | |
76 | STATIC\r | |
77 | EFI_STATUS\r | |
78 | EFIAPI\r | |
79 | USBFloppyReadBlocks (\r | |
80 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
81 | IN UINT32 MediaId,\r | |
82 | IN EFI_LBA LBA,\r | |
83 | IN UINTN BufferSize,\r | |
84 | OUT VOID *Buffer\r | |
85 | );\r | |
86 | \r | |
87 | STATIC\r | |
88 | EFI_STATUS\r | |
89 | EFIAPI\r | |
90 | USBFloppyWriteBlocks (\r | |
91 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
92 | IN UINT32 MediaId,\r | |
93 | IN EFI_LBA LBA,\r | |
94 | IN UINTN BufferSize,\r | |
95 | IN VOID *Buffer\r | |
96 | );\r | |
97 | \r | |
98 | STATIC\r | |
99 | EFI_STATUS\r | |
100 | EFIAPI\r | |
101 | USBFloppyFlushBlocks (\r | |
102 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
103 | );\r | |
104 | \r | |
105 | //\r | |
106 | // USB Floppy Driver Global Variables\r | |
107 | //\r | |
108 | EFI_DRIVER_BINDING_PROTOCOL gUSBFloppyDriverBinding = {\r | |
109 | USBFloppyDriverBindingSupported,\r | |
110 | USBFloppyDriverBindingStart,\r | |
111 | USBFloppyDriverBindingStop,\r | |
112 | 0x10,\r | |
113 | NULL,\r | |
114 | NULL\r | |
115 | };\r | |
116 | \r | |
117 | EFI_STATUS\r | |
118 | EFIAPI\r | |
119 | USBFloppyDriverBindingSupported (\r | |
120 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
121 | IN EFI_HANDLE Controller,\r | |
122 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
123 | )\r | |
124 | /*++\r | |
125 | \r | |
126 | Routine Description:\r | |
127 | Test to see if this driver supports ControllerHandle. Any ControllerHandle\r | |
128 | that has UsbHcProtocol installed will be supported.\r | |
129 | \r | |
130 | Arguments:\r | |
131 | This - Protocol instance pointer.\r | |
132 | Controller - Handle of device to test\r | |
133 | RemainingDevicePath - Not used\r | |
134 | \r | |
135 | Returns:\r | |
136 | EFI_SUCCESS - This driver supports this device.\r | |
137 | EFI_UNSUPPORTED - This driver does not support this device.\r | |
138 | \r | |
139 | --*/\r | |
140 | {\r | |
141 | EFI_STATUS OpenStatus;\r | |
142 | EFI_USB_ATAPI_PROTOCOL *AtapiProtocol;\r | |
143 | \r | |
144 | //\r | |
145 | // check whether EFI_USB_ATAPI_PROTOCOL exists, if it does,\r | |
146 | // then the controller must be a USB Mass Storage Controller\r | |
147 | //\r | |
148 | OpenStatus = gBS->OpenProtocol (\r | |
149 | Controller,\r | |
150 | &gEfiUsbAtapiProtocolGuid,\r | |
151 | (VOID **) &AtapiProtocol,\r | |
152 | This->DriverBindingHandle,\r | |
153 | Controller,\r | |
154 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
155 | );\r | |
156 | if (EFI_ERROR (OpenStatus)) {\r | |
157 | return OpenStatus;\r | |
158 | }\r | |
159 | \r | |
160 | gBS->CloseProtocol (\r | |
161 | Controller,\r | |
162 | &gEfiUsbAtapiProtocolGuid,\r | |
163 | This->DriverBindingHandle,\r | |
164 | Controller\r | |
165 | );\r | |
166 | \r | |
167 | return EFI_SUCCESS;\r | |
168 | }\r | |
169 | \r | |
170 | EFI_STATUS\r | |
171 | EFIAPI\r | |
172 | USBFloppyDriverBindingStart (\r | |
173 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
174 | IN EFI_HANDLE Controller,\r | |
175 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
176 | )\r | |
177 | /*++\r | |
178 | \r | |
179 | Routine Description:\r | |
180 | Starting the Usb Bus Driver\r | |
181 | \r | |
182 | Arguments:\r | |
183 | This - Protocol instance pointer.\r | |
184 | Controller - Handle of device to test\r | |
185 | RemainingDevicePath - Not used\r | |
186 | \r | |
187 | Returns:\r | |
188 | EFI_SUCCESS - This driver supports this device.\r | |
189 | EFI_UNSUPPORTED - This driver does not support this device.\r | |
190 | EFI_DEVICE_ERROR - This driver cannot be started due to device\r | |
191 | Error\r | |
192 | EFI_OUT_OF_RESOURCES- Can't allocate memory resources\r | |
193 | EFI_ALREADY_STARTED - Thios driver has been started\r | |
194 | --*/\r | |
195 | { \r | |
196 | EFI_STATUS Status; \r | |
197 | EFI_USB_ATAPI_PROTOCOL *AtapiProtocol;\r | |
198 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
199 | \r | |
200 | UsbFloppyDevice = NULL;\r | |
201 | //\r | |
202 | // Check whether Usb Atapi Protocol attached on the controller handle.\r | |
203 | //\r | |
204 | Status = gBS->OpenProtocol (\r | |
205 | Controller,\r | |
206 | &gEfiUsbAtapiProtocolGuid,\r | |
207 | (VOID **) &AtapiProtocol,\r | |
208 | This->DriverBindingHandle,\r | |
209 | Controller,\r | |
210 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
211 | );\r | |
212 | if (EFI_ERROR (Status)) {\r | |
213 | return Status;\r | |
214 | }\r | |
215 | \r | |
216 | Status = gBS->AllocatePool (\r | |
217 | EfiBootServicesData,\r | |
218 | sizeof (USB_FLOPPY_DEV),\r | |
219 | (VOID **) &UsbFloppyDevice\r | |
220 | );\r | |
221 | if (EFI_ERROR (Status)) {\r | |
222 | gBS->CloseProtocol (\r | |
223 | Controller,\r | |
224 | &gEfiUsbAtapiProtocolGuid,\r | |
225 | This->DriverBindingHandle,\r | |
226 | Controller\r | |
227 | );\r | |
228 | return Status;\r | |
229 | }\r | |
230 | \r | |
231 | ZeroMem (UsbFloppyDevice, sizeof (USB_FLOPPY_DEV));\r | |
232 | \r | |
233 | UsbFloppyDevice->Handle = Controller;\r | |
234 | UsbFloppyDevice->BlkIo.Media = &UsbFloppyDevice->BlkMedia;\r | |
235 | UsbFloppyDevice->Signature = USB_FLOPPY_DEV_SIGNATURE;\r | |
236 | UsbFloppyDevice->BlkIo.Reset = USBFloppyReset;\r | |
237 | UsbFloppyDevice->BlkIo.ReadBlocks = USBFloppyReadBlocks;\r | |
238 | UsbFloppyDevice->BlkIo.WriteBlocks = USBFloppyWriteBlocks;\r | |
239 | UsbFloppyDevice->BlkIo.FlushBlocks = USBFloppyFlushBlocks;\r | |
240 | UsbFloppyDevice->AtapiProtocol = AtapiProtocol;\r | |
241 | \r | |
242 | //\r | |
243 | // Identify drive type and retrieve media information.\r | |
244 | //\r | |
245 | Status = USBFloppyIdentify (UsbFloppyDevice);\r | |
246 | if (EFI_ERROR (Status)) {\r | |
247 | if (UsbFloppyDevice->SenseData != NULL) {\r | |
248 | gBS->FreePool (UsbFloppyDevice->SenseData);\r | |
249 | }\r | |
250 | \r | |
251 | gBS->FreePool (UsbFloppyDevice);\r | |
252 | gBS->CloseProtocol (\r | |
253 | Controller,\r | |
254 | &gEfiUsbAtapiProtocolGuid,\r | |
255 | This->DriverBindingHandle,\r | |
256 | Controller\r | |
257 | );\r | |
258 | return Status;\r | |
259 | }\r | |
260 | //\r | |
261 | // Install Block I/O protocol for the usb floppy device.\r | |
262 | //\r | |
263 | Status = gBS->InstallProtocolInterface (\r | |
264 | &Controller,\r | |
265 | &gEfiBlockIoProtocolGuid,\r | |
266 | EFI_NATIVE_INTERFACE,\r | |
267 | &UsbFloppyDevice->BlkIo\r | |
268 | );\r | |
269 | if (EFI_ERROR (Status)) {\r | |
270 | if (UsbFloppyDevice->SenseData != NULL) {\r | |
271 | gBS->FreePool (UsbFloppyDevice->SenseData);\r | |
272 | }\r | |
273 | \r | |
274 | gBS->FreePool (UsbFloppyDevice);\r | |
275 | gBS->CloseProtocol (\r | |
276 | Controller,\r | |
277 | &gEfiUsbAtapiProtocolGuid,\r | |
278 | This->DriverBindingHandle,\r | |
279 | Controller\r | |
280 | );\r | |
281 | return Status;\r | |
282 | }\r | |
283 | \r | |
284 | return EFI_SUCCESS;\r | |
285 | \r | |
286 | }\r | |
287 | \r | |
288 | \r | |
289 | EFI_STATUS\r | |
290 | EFIAPI\r | |
291 | USBFloppyDriverBindingStop (\r | |
292 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
293 | IN EFI_HANDLE Controller,\r | |
294 | IN UINTN NumberOfChildren,\r | |
295 | IN EFI_HANDLE *ChildHandleBuffer\r | |
296 | )\r | |
297 | /*++\r | |
298 | \r | |
299 | Routine Description:\r | |
300 | Stop this driver on ControllerHandle. Support stoping any child handles\r | |
301 | created by this driver.\r | |
302 | \r | |
303 | Arguments:\r | |
304 | This - Protocol instance pointer.\r | |
305 | Controller - Handle of device to stop driver on\r | |
306 | NumberOfChildren - Number of Children in the ChildHandleBuffer\r | |
307 | ChildHandleBuffer - List of handles for the children we need to stop.\r | |
308 | \r | |
309 | Returns:\r | |
310 | EFI_SUCCESS\r | |
311 | EFI_DEVICE_ERROR\r | |
312 | others\r | |
313 | \r | |
314 | --*/ \r | |
315 | {\r | |
316 | EFI_STATUS Status;\r | |
317 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
318 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
319 | \r | |
320 | //\r | |
321 | // First find USB_FLOPPY_DEV\r | |
322 | //\r | |
323 | gBS->OpenProtocol (\r | |
324 | Controller,\r | |
325 | &gEfiBlockIoProtocolGuid,\r | |
326 | (VOID **) &BlkIo,\r | |
327 | This->DriverBindingHandle,\r | |
328 | Controller,\r | |
329 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
330 | );\r | |
331 | \r | |
332 | UsbFloppyDevice = USB_FLOPPY_DEV_FROM_THIS (BlkIo);\r | |
333 | \r | |
334 | //\r | |
335 | // Uninstall Block I/O protocol from the device handle\r | |
336 | //\r | |
337 | Status = gBS->UninstallProtocolInterface (\r | |
338 | Controller,\r | |
339 | &gEfiBlockIoProtocolGuid,\r | |
340 | &UsbFloppyDevice->BlkIo\r | |
341 | );\r | |
342 | if (EFI_ERROR (Status)) {\r | |
343 | return Status;\r | |
344 | }\r | |
345 | //\r | |
346 | // Stop using EFI_USB_ATAPI_PROTOCOL\r | |
347 | //\r | |
348 | gBS->CloseProtocol (\r | |
349 | Controller,\r | |
350 | &gEfiUsbAtapiProtocolGuid,\r | |
351 | This->DriverBindingHandle,\r | |
352 | Controller\r | |
353 | );\r | |
354 | \r | |
355 | if (UsbFloppyDevice->SenseData != NULL) {\r | |
356 | gBS->FreePool (UsbFloppyDevice->SenseData);\r | |
357 | }\r | |
358 | \r | |
359 | gBS->FreePool (UsbFloppyDevice);\r | |
360 | \r | |
361 | return EFI_SUCCESS;\r | |
362 | }\r | |
363 | \r | |
364 | \r | |
365 | STATIC\r | |
366 | EFI_STATUS\r | |
367 | EFIAPI\r | |
368 | USBFloppyReset (\r | |
369 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
370 | IN BOOLEAN ExtendedVerification\r | |
371 | )\r | |
372 | /*++\r | |
373 | \r | |
374 | Routine Description:\r | |
375 | Implements EFI_BLOCK_IO_PROTOCOL.Reset() function.\r | |
376 | \r | |
377 | Arguments:\r | |
378 | This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
379 | ExtendedVerification\r | |
380 | Indicates that the driver may perform a more exhaustive\r | |
381 | verification operation of the device during reset.\r | |
382 | (This parameter is ingored in this driver.)\r | |
383 | \r | |
384 | Returns: \r | |
385 | EFI_SUCCESS - Success\r | |
386 | --*/ \r | |
387 | {\r | |
388 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
389 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
390 | EFI_STATUS Status;\r | |
391 | \r | |
392 | UsbFloppyDevice = USB_FLOPPY_DEV_FROM_THIS (This);\r | |
393 | \r | |
394 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
395 | \r | |
396 | //\r | |
397 | // directly calling EFI_USB_ATAPI_PROTOCOL.Reset() to implement reset.\r | |
398 | //\r | |
399 | Status = UsbAtapiInterface->UsbAtapiReset (UsbAtapiInterface, TRUE);\r | |
400 | \r | |
401 | return Status;\r | |
402 | }\r | |
403 | \r | |
404 | STATIC\r | |
405 | EFI_STATUS\r | |
406 | EFIAPI\r | |
407 | USBFloppyReadBlocks (\r | |
408 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
409 | IN UINT32 MediaId,\r | |
410 | IN EFI_LBA LBA,\r | |
411 | IN UINTN BufferSize,\r | |
412 | OUT VOID *Buffer\r | |
413 | )\r | |
414 | /*++\r | |
415 | \r | |
416 | Routine Description:\r | |
417 | Implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks() function.\r | |
418 | \r | |
419 | Arguments:\r | |
420 | This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
421 | MediaId The media id that the read request is for.\r | |
422 | LBA The starting logical block address to read from on the device.\r | |
423 | BufferSize\r | |
424 | The size of the Buffer in bytes. This must be a multiple of \r | |
425 | the intrinsic block size of the device.\r | |
426 | Buffer A pointer to the destination buffer for the data. The caller \r | |
427 | is responsible for either having implicit or explicit ownership\r | |
428 | of the buffer. \r | |
429 | \r | |
430 | Returns: \r | |
431 | EFI_INVALID_PARAMETER - Parameter is error\r | |
432 | EFI_SUCCESS - Success \r | |
433 | EFI_DEVICE_ERROR - Hardware Error\r | |
434 | EFI_NO_MEDIA - No media\r | |
435 | EFI_MEDIA_CHANGED - Media Change\r | |
436 | EFI_BAD_BUFFER_SIZE - Buffer size is bad\r | |
437 | --*/ \r | |
438 | {\r | |
439 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
440 | EFI_STATUS Status;\r | |
441 | EFI_BLOCK_IO_MEDIA *Media;\r | |
442 | UINTN BlockSize;\r | |
443 | UINTN NumberOfBlocks;\r | |
444 | BOOLEAN MediaChange;\r | |
445 | EFI_TPL OldTpl;\r | |
446 | UINT32 Retry;\r | |
447 | \r | |
448 | OldTpl = gBS->RaiseTPL (EFI_TPL_NOTIFY);\r | |
449 | Status = EFI_SUCCESS;\r | |
450 | MediaChange = FALSE;\r | |
451 | Retry = 0;\r | |
452 | \r | |
453 | UsbFloppyDevice = USB_FLOPPY_DEV_FROM_THIS (This);\r | |
454 | \r | |
455 | //\r | |
456 | // Check parameters\r | |
457 | //\r | |
458 | if (!Buffer) {\r | |
459 | Status = EFI_INVALID_PARAMETER;\r | |
460 | goto Done;\r | |
461 | }\r | |
462 | \r | |
463 | if (BufferSize == 0) {\r | |
464 | Status = EFI_SUCCESS;\r | |
465 | goto Done;\r | |
466 | }\r | |
467 | \r | |
468 | UsbFloppyTestUnitReady (UsbFloppyDevice);\r | |
469 | \r | |
470 | Status = UsbFloppyDetectMedia (UsbFloppyDevice, &MediaChange);\r | |
471 | if (EFI_ERROR (Status)) {\r | |
472 | \r | |
473 | Status = EFI_DEVICE_ERROR;\r | |
474 | goto Done;\r | |
475 | }\r | |
476 | \r | |
477 | if (MediaChange) {\r | |
478 | gBS->RestoreTPL (OldTpl);\r | |
479 | gBS->ReinstallProtocolInterface (\r | |
480 | UsbFloppyDevice->Handle,\r | |
481 | &gEfiBlockIoProtocolGuid,\r | |
482 | &UsbFloppyDevice->BlkIo,\r | |
483 | &UsbFloppyDevice->BlkIo\r | |
484 | );\r | |
485 | gBS->RaiseTPL (EFI_TPL_NOTIFY);\r | |
486 | }\r | |
487 | \r | |
488 | Media = UsbFloppyDevice->BlkIo.Media;\r | |
489 | BlockSize = Media->BlockSize;\r | |
490 | NumberOfBlocks = BufferSize / BlockSize;\r | |
491 | \r | |
492 | if (!(Media->MediaPresent)) {\r | |
493 | Status = EFI_NO_MEDIA;\r | |
494 | goto Done;\r | |
495 | }\r | |
496 | \r | |
497 | if (MediaId != Media->MediaId) {\r | |
498 | Status = EFI_MEDIA_CHANGED;\r | |
499 | goto Done;\r | |
500 | }\r | |
501 | \r | |
502 | if (BufferSize % BlockSize != 0) {\r | |
503 | Status = EFI_BAD_BUFFER_SIZE;\r | |
504 | goto Done;\r | |
505 | }\r | |
506 | \r | |
507 | if (LBA > Media->LastBlock) {\r | |
508 | Status = EFI_INVALID_PARAMETER;\r | |
509 | goto Done;\r | |
510 | }\r | |
511 | \r | |
512 | if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {\r | |
513 | Status = EFI_INVALID_PARAMETER;\r | |
514 | goto Done;\r | |
515 | }\r | |
516 | \r | |
517 | if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {\r | |
518 | Status = EFI_INVALID_PARAMETER;\r | |
519 | goto Done;\r | |
520 | }\r | |
521 | \r | |
522 | if (!EFI_ERROR (Status)) {\r | |
523 | \r | |
524 | Status = USBFloppyRead10 (UsbFloppyDevice, Buffer, LBA, 1);\r | |
525 | if (EFI_ERROR (Status)) {\r | |
526 | This->Reset (This, TRUE);\r | |
527 | Status = EFI_DEVICE_ERROR;\r | |
528 | goto Done;\r | |
529 | }\r | |
530 | \r | |
531 | LBA += 1;\r | |
532 | NumberOfBlocks -= 1;\r | |
533 | Buffer = (UINT8 *) Buffer + This->Media->BlockSize;\r | |
534 | \r | |
535 | if (NumberOfBlocks == 0) {\r | |
536 | Status = EFI_SUCCESS;\r | |
537 | goto Done;\r | |
538 | }\r | |
539 | \r | |
540 | Status = USBFloppyRead10 (UsbFloppyDevice, Buffer, LBA, NumberOfBlocks);\r | |
541 | if (EFI_ERROR (Status)) {\r | |
542 | This->Reset (This, TRUE);\r | |
543 | Status = EFI_DEVICE_ERROR;\r | |
544 | }\r | |
545 | }\r | |
546 | \r | |
547 | Done:\r | |
548 | gBS->RestoreTPL (OldTpl);\r | |
549 | return Status;\r | |
550 | }\r | |
551 | \r | |
552 | STATIC\r | |
553 | EFI_STATUS\r | |
554 | EFIAPI\r | |
555 | USBFloppyWriteBlocks (\r | |
556 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
557 | IN UINT32 MediaId,\r | |
558 | IN EFI_LBA LBA,\r | |
559 | IN UINTN BufferSize,\r | |
560 | IN VOID *Buffer\r | |
561 | )\r | |
562 | /*++\r | |
563 | \r | |
564 | Routine Description:\r | |
565 | Implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks() function.\r | |
566 | \r | |
567 | Arguments:\r | |
568 | This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
569 | MediaId The media id that the write request is for.\r | |
570 | LBA The starting logical block address to be written.\r | |
571 | The caller is responsible for writing to only \r | |
572 | legitimate locations.\r | |
573 | BufferSize\r | |
574 | The size of the Buffer in bytes. This must be a multiple of \r | |
575 | the intrinsic block size of the device.\r | |
576 | Buffer A pointer to the source buffer for the data. The caller \r | |
577 | is responsible for either having implicit or explicit ownership\r | |
578 | of the buffer. \r | |
579 | \r | |
580 | Returns: \r | |
581 | EFI_INVALID_PARAMETER - Parameter is error\r | |
582 | EFI_SUCCESS - Success \r | |
583 | EFI_DEVICE_ERROR - Hardware Error\r | |
584 | EFI_NO_MEDIA - No media\r | |
585 | EFI_MEDIA_CHANGED - Media Change\r | |
586 | EFI_BAD_BUFFER_SIZE - Buffer size is bad\r | |
587 | \r | |
588 | --*/ \r | |
589 | {\r | |
590 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
591 | EFI_STATUS Status;\r | |
592 | EFI_BLOCK_IO_MEDIA *Media;\r | |
593 | UINTN BlockSize;\r | |
594 | UINTN NumberOfBlocks;\r | |
595 | BOOLEAN MediaChange;\r | |
596 | EFI_TPL OldTpl;\r | |
597 | UINT32 Retry;\r | |
598 | \r | |
599 | OldTpl = gBS->RaiseTPL (EFI_TPL_NOTIFY);\r | |
600 | Status = EFI_SUCCESS;\r | |
601 | MediaChange = FALSE;\r | |
602 | Retry = 0;\r | |
603 | \r | |
604 | UsbFloppyDevice = USB_FLOPPY_DEV_FROM_THIS (This);\r | |
605 | \r | |
606 | //\r | |
607 | // Check parameters\r | |
608 | //\r | |
609 | if (!Buffer) {\r | |
610 | Status = EFI_INVALID_PARAMETER;\r | |
611 | goto Done;\r | |
612 | }\r | |
613 | \r | |
614 | if (BufferSize == 0) {\r | |
615 | Status = EFI_SUCCESS;\r | |
616 | goto Done;\r | |
617 | }\r | |
618 | \r | |
619 | UsbFloppyTestUnitReady (UsbFloppyDevice);\r | |
620 | \r | |
621 | Status = UsbFloppyDetectMedia (UsbFloppyDevice, &MediaChange);\r | |
622 | if (EFI_ERROR (Status)) {\r | |
623 | \r | |
624 | Status = EFI_DEVICE_ERROR;\r | |
625 | goto Done;\r | |
626 | }\r | |
627 | \r | |
628 | if (MediaChange) {\r | |
629 | gBS->RestoreTPL (OldTpl);\r | |
630 | gBS->ReinstallProtocolInterface (\r | |
631 | UsbFloppyDevice->Handle,\r | |
632 | &gEfiBlockIoProtocolGuid,\r | |
633 | &UsbFloppyDevice->BlkIo,\r | |
634 | &UsbFloppyDevice->BlkIo\r | |
635 | );\r | |
636 | gBS->RaiseTPL (EFI_TPL_NOTIFY);\r | |
637 | }\r | |
638 | \r | |
639 | Media = UsbFloppyDevice->BlkIo.Media;\r | |
640 | BlockSize = Media->BlockSize;\r | |
641 | NumberOfBlocks = BufferSize / BlockSize;\r | |
642 | \r | |
643 | if (!(Media->MediaPresent)) {\r | |
644 | Status = EFI_NO_MEDIA;\r | |
645 | goto Done;\r | |
646 | }\r | |
647 | \r | |
648 | if (MediaId != Media->MediaId) {\r | |
649 | Status = EFI_MEDIA_CHANGED;\r | |
650 | goto Done;\r | |
651 | }\r | |
652 | \r | |
653 | if (BufferSize % BlockSize != 0) {\r | |
654 | Status = EFI_BAD_BUFFER_SIZE;\r | |
655 | goto Done;\r | |
656 | }\r | |
657 | \r | |
658 | if (LBA > Media->LastBlock) {\r | |
659 | Status = EFI_INVALID_PARAMETER;\r | |
660 | goto Done;\r | |
661 | }\r | |
662 | \r | |
663 | if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {\r | |
664 | Status = EFI_INVALID_PARAMETER;\r | |
665 | goto Done;\r | |
666 | }\r | |
667 | \r | |
668 | if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {\r | |
669 | Status = EFI_INVALID_PARAMETER;\r | |
670 | goto Done;\r | |
671 | }\r | |
672 | \r | |
673 | if (UsbFloppyDevice->BlkMedia.ReadOnly) {\r | |
674 | Status = EFI_WRITE_PROTECTED;\r | |
675 | goto Done;\r | |
676 | }\r | |
677 | \r | |
678 | if (!EFI_ERROR (Status)) {\r | |
679 | Status = USBFloppyWrite10 (UsbFloppyDevice, Buffer, LBA, 1);\r | |
680 | if (EFI_ERROR (Status)) {\r | |
681 | This->Reset (This, TRUE);\r | |
682 | Status = EFI_DEVICE_ERROR;\r | |
683 | goto Done;\r | |
684 | }\r | |
685 | \r | |
686 | LBA += 1;\r | |
687 | NumberOfBlocks -= 1;\r | |
688 | Buffer = (UINT8 *) Buffer + This->Media->BlockSize;\r | |
689 | \r | |
690 | if (NumberOfBlocks == 0) {\r | |
691 | Status = EFI_SUCCESS;\r | |
692 | goto Done;\r | |
693 | }\r | |
694 | \r | |
695 | Status = USBFloppyWrite10 (UsbFloppyDevice, Buffer, LBA, NumberOfBlocks);\r | |
696 | if (EFI_ERROR (Status)) {\r | |
697 | This->Reset (This, TRUE);\r | |
698 | Status = EFI_DEVICE_ERROR;\r | |
699 | }\r | |
700 | }\r | |
701 | \r | |
702 | Done:\r | |
703 | gBS->RestoreTPL (OldTpl);\r | |
704 | return Status;\r | |
705 | }\r | |
706 | \r | |
707 | STATIC\r | |
708 | EFI_STATUS\r | |
709 | EFIAPI\r | |
710 | USBFloppyFlushBlocks (\r | |
711 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
712 | )\r | |
713 | /*++\r | |
714 | \r | |
715 | Routine Description:\r | |
716 | Implements EFI_BLOCK_IO_PROTOCOL.FlushBlocks() function.\r | |
717 | (In this driver, this function just returns EFI_SUCCESS.)\r | |
718 | \r | |
719 | Arguments:\r | |
720 | This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
721 | \r | |
722 | Returns: \r | |
723 | EFI_SUCCESS - Success\r | |
724 | --*/ \r | |
725 | {\r | |
726 | return EFI_SUCCESS;\r | |
727 | }\r |