]>
Commit | Line | Data |
---|---|---|
878ddf1f | 1 | /*++\r |
2 | \r | |
c094abe5 | 3 | Copyright (c) 2006 - 2007, Intel Corporation\r |
4d1fe68e | 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 | |
878ddf1f | 11 | \r |
12 | Module Name:\r | |
13 | \r | |
14 | UsbMassStorage.c\r | |
4d1fe68e | 15 | \r |
878ddf1f | 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 | |
878ddf1f | 27 | //\r |
28 | // Block I/O Protocol Interface\r | |
29 | //\r | |
30 | STATIC\r | |
31 | EFI_STATUS\r | |
32 | EFIAPI\r | |
33 | USBFloppyReset (\r | |
34 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
35 | IN BOOLEAN ExtendedVerification\r | |
36 | );\r | |
37 | \r | |
38 | STATIC\r | |
39 | EFI_STATUS\r | |
40 | EFIAPI\r | |
41 | USBFloppyReadBlocks (\r | |
42 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
43 | IN UINT32 MediaId,\r | |
44 | IN EFI_LBA LBA,\r | |
45 | IN UINTN BufferSize,\r | |
46 | OUT VOID *Buffer\r | |
47 | );\r | |
48 | \r | |
49 | STATIC\r | |
50 | EFI_STATUS\r | |
51 | EFIAPI\r | |
52 | USBFloppyWriteBlocks (\r | |
53 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
54 | IN UINT32 MediaId,\r | |
55 | IN EFI_LBA LBA,\r | |
56 | IN UINTN BufferSize,\r | |
57 | IN VOID *Buffer\r | |
58 | );\r | |
59 | \r | |
60 | STATIC\r | |
61 | EFI_STATUS\r | |
62 | EFIAPI\r | |
63 | USBFloppyFlushBlocks (\r | |
64 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
65 | );\r | |
66 | \r | |
67 | //\r | |
68 | // USB Floppy Driver Global Variables\r | |
69 | //\r | |
70 | EFI_DRIVER_BINDING_PROTOCOL gUSBFloppyDriverBinding = {\r | |
71 | USBFloppyDriverBindingSupported,\r | |
72 | USBFloppyDriverBindingStart,\r | |
73 | USBFloppyDriverBindingStop,\r | |
61fb1657 | 74 | 0xa,\r |
878ddf1f | 75 | NULL,\r |
76 | NULL\r | |
77 | };\r | |
78 | \r | |
79 | EFI_STATUS\r | |
80 | EFIAPI\r | |
81 | USBFloppyDriverBindingSupported (\r | |
82 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
83 | IN EFI_HANDLE Controller,\r | |
84 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
85 | )\r | |
86 | /*++\r | |
87 | \r | |
88 | Routine Description:\r | |
89 | Test to see if this driver supports ControllerHandle. Any ControllerHandle\r | |
90 | that has UsbHcProtocol installed will be supported.\r | |
91 | \r | |
92 | Arguments:\r | |
93 | This - Protocol instance pointer.\r | |
94 | Controller - Handle of device to test\r | |
95 | RemainingDevicePath - Not used\r | |
96 | \r | |
97 | Returns:\r | |
98 | EFI_SUCCESS - This driver supports this device.\r | |
99 | EFI_UNSUPPORTED - This driver does not support this device.\r | |
100 | \r | |
101 | --*/\r | |
102 | {\r | |
103 | EFI_STATUS OpenStatus;\r | |
104 | EFI_USB_ATAPI_PROTOCOL *AtapiProtocol;\r | |
105 | \r | |
106 | //\r | |
107 | // check whether EFI_USB_ATAPI_PROTOCOL exists, if it does,\r | |
108 | // then the controller must be a USB Mass Storage Controller\r | |
109 | //\r | |
110 | OpenStatus = gBS->OpenProtocol (\r | |
111 | Controller,\r | |
112 | &gEfiUsbAtapiProtocolGuid,\r | |
113 | (VOID **) &AtapiProtocol,\r | |
114 | This->DriverBindingHandle,\r | |
115 | Controller,\r | |
116 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
117 | );\r | |
118 | if (EFI_ERROR (OpenStatus)) {\r | |
119 | return OpenStatus;\r | |
120 | }\r | |
121 | \r | |
122 | gBS->CloseProtocol (\r | |
123 | Controller,\r | |
124 | &gEfiUsbAtapiProtocolGuid,\r | |
125 | This->DriverBindingHandle,\r | |
126 | Controller\r | |
127 | );\r | |
128 | \r | |
129 | return EFI_SUCCESS;\r | |
130 | }\r | |
131 | \r | |
132 | EFI_STATUS\r | |
133 | EFIAPI\r | |
134 | USBFloppyDriverBindingStart (\r | |
135 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
136 | IN EFI_HANDLE Controller,\r | |
137 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
138 | )\r | |
139 | /*++\r | |
140 | \r | |
141 | Routine Description:\r | |
142 | Starting the Usb Bus Driver\r | |
143 | \r | |
144 | Arguments:\r | |
145 | This - Protocol instance pointer.\r | |
146 | Controller - Handle of device to test\r | |
147 | RemainingDevicePath - Not used\r | |
148 | \r | |
149 | Returns:\r | |
150 | EFI_SUCCESS - This driver supports this device.\r | |
151 | EFI_UNSUPPORTED - This driver does not support this device.\r | |
152 | EFI_DEVICE_ERROR - This driver cannot be started due to device\r | |
153 | Error\r | |
154 | EFI_OUT_OF_RESOURCES- Can't allocate memory resources\r | |
155 | EFI_ALREADY_STARTED - Thios driver has been started\r | |
156 | --*/\r | |
4d1fe68e | 157 | {\r |
158 | EFI_STATUS Status;\r | |
878ddf1f | 159 | EFI_USB_ATAPI_PROTOCOL *AtapiProtocol;\r |
160 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
4d1fe68e | 161 | \r |
878ddf1f | 162 | UsbFloppyDevice = NULL;\r |
163 | //\r | |
164 | // Check whether Usb Atapi Protocol attached on the controller handle.\r | |
165 | //\r | |
166 | Status = gBS->OpenProtocol (\r | |
167 | Controller,\r | |
168 | &gEfiUsbAtapiProtocolGuid,\r | |
169 | (VOID **) &AtapiProtocol,\r | |
170 | This->DriverBindingHandle,\r | |
171 | Controller,\r | |
172 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
173 | );\r | |
174 | if (EFI_ERROR (Status)) {\r | |
175 | return Status;\r | |
176 | }\r | |
177 | \r | |
178 | Status = gBS->AllocatePool (\r | |
179 | EfiBootServicesData,\r | |
180 | sizeof (USB_FLOPPY_DEV),\r | |
181 | (VOID **) &UsbFloppyDevice\r | |
182 | );\r | |
183 | if (EFI_ERROR (Status)) {\r | |
184 | gBS->CloseProtocol (\r | |
185 | Controller,\r | |
186 | &gEfiUsbAtapiProtocolGuid,\r | |
187 | This->DriverBindingHandle,\r | |
188 | Controller\r | |
189 | );\r | |
190 | return Status;\r | |
191 | }\r | |
192 | \r | |
193 | ZeroMem (UsbFloppyDevice, sizeof (USB_FLOPPY_DEV));\r | |
194 | \r | |
195 | UsbFloppyDevice->Handle = Controller;\r | |
196 | UsbFloppyDevice->BlkIo.Media = &UsbFloppyDevice->BlkMedia;\r | |
197 | UsbFloppyDevice->Signature = USB_FLOPPY_DEV_SIGNATURE;\r | |
198 | UsbFloppyDevice->BlkIo.Reset = USBFloppyReset;\r | |
199 | UsbFloppyDevice->BlkIo.ReadBlocks = USBFloppyReadBlocks;\r | |
200 | UsbFloppyDevice->BlkIo.WriteBlocks = USBFloppyWriteBlocks;\r | |
201 | UsbFloppyDevice->BlkIo.FlushBlocks = USBFloppyFlushBlocks;\r | |
202 | UsbFloppyDevice->AtapiProtocol = AtapiProtocol;\r | |
203 | \r | |
204 | //\r | |
205 | // Identify drive type and retrieve media information.\r | |
206 | //\r | |
207 | Status = USBFloppyIdentify (UsbFloppyDevice);\r | |
208 | if (EFI_ERROR (Status)) {\r | |
209 | if (UsbFloppyDevice->SenseData != NULL) {\r | |
210 | gBS->FreePool (UsbFloppyDevice->SenseData);\r | |
211 | }\r | |
212 | \r | |
213 | gBS->FreePool (UsbFloppyDevice);\r | |
214 | gBS->CloseProtocol (\r | |
215 | Controller,\r | |
216 | &gEfiUsbAtapiProtocolGuid,\r | |
217 | This->DriverBindingHandle,\r | |
218 | Controller\r | |
219 | );\r | |
220 | return Status;\r | |
221 | }\r | |
222 | //\r | |
223 | // Install Block I/O protocol for the usb floppy device.\r | |
224 | //\r | |
225 | Status = gBS->InstallProtocolInterface (\r | |
226 | &Controller,\r | |
227 | &gEfiBlockIoProtocolGuid,\r | |
228 | EFI_NATIVE_INTERFACE,\r | |
229 | &UsbFloppyDevice->BlkIo\r | |
230 | );\r | |
231 | if (EFI_ERROR (Status)) {\r | |
232 | if (UsbFloppyDevice->SenseData != NULL) {\r | |
233 | gBS->FreePool (UsbFloppyDevice->SenseData);\r | |
234 | }\r | |
235 | \r | |
236 | gBS->FreePool (UsbFloppyDevice);\r | |
237 | gBS->CloseProtocol (\r | |
238 | Controller,\r | |
239 | &gEfiUsbAtapiProtocolGuid,\r | |
240 | This->DriverBindingHandle,\r | |
241 | Controller\r | |
242 | );\r | |
243 | return Status;\r | |
244 | }\r | |
245 | \r | |
246 | return EFI_SUCCESS;\r | |
247 | \r | |
248 | }\r | |
249 | \r | |
250 | \r | |
251 | EFI_STATUS\r | |
252 | EFIAPI\r | |
253 | USBFloppyDriverBindingStop (\r | |
254 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
255 | IN EFI_HANDLE Controller,\r | |
256 | IN UINTN NumberOfChildren,\r | |
257 | IN EFI_HANDLE *ChildHandleBuffer\r | |
258 | )\r | |
259 | /*++\r | |
260 | \r | |
261 | Routine Description:\r | |
262 | Stop this driver on ControllerHandle. Support stoping any child handles\r | |
263 | created by this driver.\r | |
264 | \r | |
265 | Arguments:\r | |
266 | This - Protocol instance pointer.\r | |
267 | Controller - Handle of device to stop driver on\r | |
268 | NumberOfChildren - Number of Children in the ChildHandleBuffer\r | |
269 | ChildHandleBuffer - List of handles for the children we need to stop.\r | |
270 | \r | |
271 | Returns:\r | |
272 | EFI_SUCCESS\r | |
273 | EFI_DEVICE_ERROR\r | |
274 | others\r | |
275 | \r | |
4d1fe68e | 276 | --*/\r |
878ddf1f | 277 | {\r |
278 | EFI_STATUS Status;\r | |
279 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
280 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
281 | \r | |
282 | //\r | |
283 | // First find USB_FLOPPY_DEV\r | |
284 | //\r | |
285 | gBS->OpenProtocol (\r | |
286 | Controller,\r | |
287 | &gEfiBlockIoProtocolGuid,\r | |
288 | (VOID **) &BlkIo,\r | |
289 | This->DriverBindingHandle,\r | |
290 | Controller,\r | |
291 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
292 | );\r | |
293 | \r | |
294 | UsbFloppyDevice = USB_FLOPPY_DEV_FROM_THIS (BlkIo);\r | |
295 | \r | |
296 | //\r | |
297 | // Uninstall Block I/O protocol from the device handle\r | |
298 | //\r | |
299 | Status = gBS->UninstallProtocolInterface (\r | |
300 | Controller,\r | |
301 | &gEfiBlockIoProtocolGuid,\r | |
302 | &UsbFloppyDevice->BlkIo\r | |
303 | );\r | |
304 | if (EFI_ERROR (Status)) {\r | |
305 | return Status;\r | |
306 | }\r | |
307 | //\r | |
308 | // Stop using EFI_USB_ATAPI_PROTOCOL\r | |
309 | //\r | |
310 | gBS->CloseProtocol (\r | |
311 | Controller,\r | |
312 | &gEfiUsbAtapiProtocolGuid,\r | |
313 | This->DriverBindingHandle,\r | |
314 | Controller\r | |
315 | );\r | |
316 | \r | |
317 | if (UsbFloppyDevice->SenseData != NULL) {\r | |
318 | gBS->FreePool (UsbFloppyDevice->SenseData);\r | |
319 | }\r | |
320 | \r | |
321 | gBS->FreePool (UsbFloppyDevice);\r | |
322 | \r | |
323 | return EFI_SUCCESS;\r | |
324 | }\r | |
325 | \r | |
326 | \r | |
327 | STATIC\r | |
328 | EFI_STATUS\r | |
329 | EFIAPI\r | |
330 | USBFloppyReset (\r | |
331 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
332 | IN BOOLEAN ExtendedVerification\r | |
333 | )\r | |
334 | /*++\r | |
335 | \r | |
336 | Routine Description:\r | |
337 | Implements EFI_BLOCK_IO_PROTOCOL.Reset() function.\r | |
4d1fe68e | 338 | \r |
878ddf1f | 339 | Arguments:\r |
340 | This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
341 | ExtendedVerification\r | |
342 | Indicates that the driver may perform a more exhaustive\r | |
343 | verification operation of the device during reset.\r | |
344 | (This parameter is ingored in this driver.)\r | |
4d1fe68e | 345 | \r |
346 | Returns:\r | |
878ddf1f | 347 | EFI_SUCCESS - Success\r |
4d1fe68e | 348 | --*/\r |
878ddf1f | 349 | {\r |
350 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
351 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
352 | EFI_STATUS Status;\r | |
c094abe5 | 353 | EFI_TPL OldTpl;\r |
354 | \r | |
93b0fbc8 | 355 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
878ddf1f | 356 | \r |
357 | UsbFloppyDevice = USB_FLOPPY_DEV_FROM_THIS (This);\r | |
358 | \r | |
359 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
360 | \r | |
361 | //\r | |
362 | // directly calling EFI_USB_ATAPI_PROTOCOL.Reset() to implement reset.\r | |
363 | //\r | |
4d1fe68e | 364 | Status = UsbAtapiInterface->UsbAtapiReset (UsbAtapiInterface, ExtendedVerification);\r |
878ddf1f | 365 | \r |
c094abe5 | 366 | gBS->RestoreTPL (OldTpl);\r |
367 | \r | |
878ddf1f | 368 | return Status;\r |
369 | }\r | |
370 | \r | |
371 | STATIC\r | |
372 | EFI_STATUS\r | |
373 | EFIAPI\r | |
374 | USBFloppyReadBlocks (\r | |
375 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
376 | IN UINT32 MediaId,\r | |
377 | IN EFI_LBA LBA,\r | |
378 | IN UINTN BufferSize,\r | |
379 | OUT VOID *Buffer\r | |
380 | )\r | |
381 | /*++\r | |
382 | \r | |
383 | Routine Description:\r | |
384 | Implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks() function.\r | |
4d1fe68e | 385 | \r |
878ddf1f | 386 | Arguments:\r |
387 | This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
388 | MediaId The media id that the read request is for.\r | |
389 | LBA The starting logical block address to read from on the device.\r | |
390 | BufferSize\r | |
4d1fe68e | 391 | The size of the Buffer in bytes. This must be a multiple of\r |
878ddf1f | 392 | the intrinsic block size of the device.\r |
4d1fe68e | 393 | Buffer A pointer to the destination buffer for the data. The caller\r |
878ddf1f | 394 | is responsible for either having implicit or explicit ownership\r |
4d1fe68e | 395 | of the buffer.\r |
396 | \r | |
397 | Returns:\r | |
878ddf1f | 398 | EFI_INVALID_PARAMETER - Parameter is error\r |
4d1fe68e | 399 | EFI_SUCCESS - Success\r |
878ddf1f | 400 | EFI_DEVICE_ERROR - Hardware Error\r |
401 | EFI_NO_MEDIA - No media\r | |
402 | EFI_MEDIA_CHANGED - Media Change\r | |
403 | EFI_BAD_BUFFER_SIZE - Buffer size is bad\r | |
4d1fe68e | 404 | --*/\r |
878ddf1f | 405 | {\r |
406 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
407 | EFI_STATUS Status;\r | |
408 | EFI_BLOCK_IO_MEDIA *Media;\r | |
409 | UINTN BlockSize;\r | |
410 | UINTN NumberOfBlocks;\r | |
411 | BOOLEAN MediaChange;\r | |
c094abe5 | 412 | EFI_TPL OldTpl;\r |
878ddf1f | 413 | \r |
878ddf1f | 414 | Status = EFI_SUCCESS;\r |
415 | MediaChange = FALSE;\r | |
878ddf1f | 416 | UsbFloppyDevice = USB_FLOPPY_DEV_FROM_THIS (This);\r |
417 | \r | |
418 | //\r | |
419 | // Check parameters\r | |
420 | //\r | |
c094abe5 | 421 | if (Buffer == NULL) {\r |
422 | return EFI_INVALID_PARAMETER;\r | |
878ddf1f | 423 | }\r |
424 | \r | |
425 | if (BufferSize == 0) {\r | |
c094abe5 | 426 | return EFI_SUCCESS;\r |
878ddf1f | 427 | }\r |
428 | \r | |
93b0fbc8 | 429 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
c094abe5 | 430 | \r |
878ddf1f | 431 | UsbFloppyTestUnitReady (UsbFloppyDevice);\r |
432 | \r | |
433 | Status = UsbFloppyDetectMedia (UsbFloppyDevice, &MediaChange);\r | |
434 | if (EFI_ERROR (Status)) {\r | |
435 | \r | |
436 | Status = EFI_DEVICE_ERROR;\r | |
437 | goto Done;\r | |
438 | }\r | |
439 | \r | |
440 | if (MediaChange) {\r | |
878ddf1f | 441 | gBS->ReinstallProtocolInterface (\r |
442 | UsbFloppyDevice->Handle,\r | |
443 | &gEfiBlockIoProtocolGuid,\r | |
444 | &UsbFloppyDevice->BlkIo,\r | |
445 | &UsbFloppyDevice->BlkIo\r | |
446 | );\r | |
878ddf1f | 447 | }\r |
448 | \r | |
449 | Media = UsbFloppyDevice->BlkIo.Media;\r | |
450 | BlockSize = Media->BlockSize;\r | |
451 | NumberOfBlocks = BufferSize / BlockSize;\r | |
452 | \r | |
453 | if (!(Media->MediaPresent)) {\r | |
454 | Status = EFI_NO_MEDIA;\r | |
455 | goto Done;\r | |
456 | }\r | |
457 | \r | |
458 | if (MediaId != Media->MediaId) {\r | |
459 | Status = EFI_MEDIA_CHANGED;\r | |
460 | goto Done;\r | |
461 | }\r | |
462 | \r | |
463 | if (BufferSize % BlockSize != 0) {\r | |
464 | Status = EFI_BAD_BUFFER_SIZE;\r | |
465 | goto Done;\r | |
466 | }\r | |
467 | \r | |
468 | if (LBA > Media->LastBlock) {\r | |
469 | Status = EFI_INVALID_PARAMETER;\r | |
470 | goto Done;\r | |
471 | }\r | |
472 | \r | |
473 | if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {\r | |
474 | Status = EFI_INVALID_PARAMETER;\r | |
475 | goto Done;\r | |
476 | }\r | |
477 | \r | |
478 | if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {\r | |
479 | Status = EFI_INVALID_PARAMETER;\r | |
480 | goto Done;\r | |
481 | }\r | |
482 | \r | |
4d1fe68e | 483 | while (NumberOfBlocks > 0) {\r |
878ddf1f | 484 | \r |
4d1fe68e | 485 | if (NumberOfBlocks > BLOCK_UNIT) {\r |
486 | Status = USBFloppyRead10 (UsbFloppyDevice, Buffer, LBA, BLOCK_UNIT);\r | |
487 | } else {\r | |
488 | Status = USBFloppyRead10 (UsbFloppyDevice, Buffer, LBA, NumberOfBlocks);\r | |
878ddf1f | 489 | }\r |
490 | \r | |
878ddf1f | 491 | if (EFI_ERROR (Status)) {\r |
492 | This->Reset (This, TRUE);\r | |
493 | Status = EFI_DEVICE_ERROR;\r | |
c094abe5 | 494 | goto Done;\r |
878ddf1f | 495 | }\r |
878ddf1f | 496 | \r |
4d1fe68e | 497 | if (NumberOfBlocks > BLOCK_UNIT) {\r |
498 | NumberOfBlocks -= BLOCK_UNIT;\r | |
499 | LBA += BLOCK_UNIT;\r | |
500 | Buffer = (UINT8 *) Buffer + This->Media->BlockSize * BLOCK_UNIT;\r | |
501 | } else {\r | |
502 | NumberOfBlocks -= NumberOfBlocks;\r | |
503 | LBA += NumberOfBlocks;\r | |
504 | Buffer = (UINT8 *) Buffer + This->Media->BlockSize * NumberOfBlocks;\r | |
505 | }\r | |
506 | }\r | |
507 | \r | |
508 | Done:\r | |
c094abe5 | 509 | gBS->RestoreTPL (OldTpl);\r |
878ddf1f | 510 | return Status;\r |
511 | }\r | |
512 | \r | |
513 | STATIC\r | |
514 | EFI_STATUS\r | |
515 | EFIAPI\r | |
516 | USBFloppyWriteBlocks (\r | |
517 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
518 | IN UINT32 MediaId,\r | |
519 | IN EFI_LBA LBA,\r | |
520 | IN UINTN BufferSize,\r | |
521 | IN VOID *Buffer\r | |
522 | )\r | |
523 | /*++\r | |
524 | \r | |
525 | Routine Description:\r | |
526 | Implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks() function.\r | |
4d1fe68e | 527 | \r |
878ddf1f | 528 | Arguments:\r |
529 | This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
530 | MediaId The media id that the write request is for.\r | |
531 | LBA The starting logical block address to be written.\r | |
4d1fe68e | 532 | The caller is responsible for writing to only\r |
878ddf1f | 533 | legitimate locations.\r |
534 | BufferSize\r | |
4d1fe68e | 535 | The size of the Buffer in bytes. This must be a multiple of\r |
878ddf1f | 536 | the intrinsic block size of the device.\r |
4d1fe68e | 537 | Buffer A pointer to the source buffer for the data. The caller\r |
878ddf1f | 538 | is responsible for either having implicit or explicit ownership\r |
4d1fe68e | 539 | of the buffer.\r |
540 | \r | |
541 | Returns:\r | |
878ddf1f | 542 | EFI_INVALID_PARAMETER - Parameter is error\r |
4d1fe68e | 543 | EFI_SUCCESS - Success\r |
878ddf1f | 544 | EFI_DEVICE_ERROR - Hardware Error\r |
545 | EFI_NO_MEDIA - No media\r | |
546 | EFI_MEDIA_CHANGED - Media Change\r | |
547 | EFI_BAD_BUFFER_SIZE - Buffer size is bad\r | |
548 | \r | |
4d1fe68e | 549 | --*/\r |
878ddf1f | 550 | {\r |
551 | USB_FLOPPY_DEV *UsbFloppyDevice;\r | |
552 | EFI_STATUS Status;\r | |
553 | EFI_BLOCK_IO_MEDIA *Media;\r | |
554 | UINTN BlockSize;\r | |
555 | UINTN NumberOfBlocks;\r | |
556 | BOOLEAN MediaChange;\r | |
c094abe5 | 557 | EFI_TPL OldTpl;\r |
878ddf1f | 558 | \r |
878ddf1f | 559 | Status = EFI_SUCCESS;\r |
560 | MediaChange = FALSE;\r | |
878ddf1f | 561 | \r |
562 | UsbFloppyDevice = USB_FLOPPY_DEV_FROM_THIS (This);\r | |
563 | \r | |
564 | //\r | |
565 | // Check parameters\r | |
566 | //\r | |
c094abe5 | 567 | if (Buffer == NULL) {\r |
568 | return EFI_INVALID_PARAMETER;\r | |
878ddf1f | 569 | }\r |
570 | \r | |
571 | if (BufferSize == 0) {\r | |
c094abe5 | 572 | return EFI_SUCCESS;\r |
878ddf1f | 573 | }\r |
574 | \r | |
93b0fbc8 | 575 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
c094abe5 | 576 | \r |
878ddf1f | 577 | UsbFloppyTestUnitReady (UsbFloppyDevice);\r |
578 | \r | |
579 | Status = UsbFloppyDetectMedia (UsbFloppyDevice, &MediaChange);\r | |
580 | if (EFI_ERROR (Status)) {\r | |
581 | \r | |
582 | Status = EFI_DEVICE_ERROR;\r | |
583 | goto Done;\r | |
584 | }\r | |
585 | \r | |
586 | if (MediaChange) {\r | |
878ddf1f | 587 | gBS->ReinstallProtocolInterface (\r |
588 | UsbFloppyDevice->Handle,\r | |
589 | &gEfiBlockIoProtocolGuid,\r | |
590 | &UsbFloppyDevice->BlkIo,\r | |
591 | &UsbFloppyDevice->BlkIo\r | |
592 | );\r | |
878ddf1f | 593 | }\r |
594 | \r | |
595 | Media = UsbFloppyDevice->BlkIo.Media;\r | |
596 | BlockSize = Media->BlockSize;\r | |
597 | NumberOfBlocks = BufferSize / BlockSize;\r | |
598 | \r | |
599 | if (!(Media->MediaPresent)) {\r | |
600 | Status = EFI_NO_MEDIA;\r | |
601 | goto Done;\r | |
602 | }\r | |
603 | \r | |
604 | if (MediaId != Media->MediaId) {\r | |
605 | Status = EFI_MEDIA_CHANGED;\r | |
606 | goto Done;\r | |
607 | }\r | |
608 | \r | |
609 | if (BufferSize % BlockSize != 0) {\r | |
610 | Status = EFI_BAD_BUFFER_SIZE;\r | |
611 | goto Done;\r | |
612 | }\r | |
613 | \r | |
614 | if (LBA > Media->LastBlock) {\r | |
615 | Status = EFI_INVALID_PARAMETER;\r | |
616 | goto Done;\r | |
617 | }\r | |
618 | \r | |
619 | if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {\r | |
620 | Status = EFI_INVALID_PARAMETER;\r | |
621 | goto Done;\r | |
622 | }\r | |
623 | \r | |
624 | if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {\r | |
625 | Status = EFI_INVALID_PARAMETER;\r | |
626 | goto Done;\r | |
627 | }\r | |
628 | \r | |
629 | if (UsbFloppyDevice->BlkMedia.ReadOnly) {\r | |
630 | Status = EFI_WRITE_PROTECTED;\r | |
631 | goto Done;\r | |
632 | }\r | |
633 | \r | |
4d1fe68e | 634 | while (NumberOfBlocks > 0) {\r |
878ddf1f | 635 | \r |
4d1fe68e | 636 | if (NumberOfBlocks > BLOCK_UNIT) {\r |
637 | Status = USBFloppyWrite10 (UsbFloppyDevice, Buffer, LBA, BLOCK_UNIT);\r | |
638 | } else {\r | |
639 | Status = USBFloppyWrite10 (UsbFloppyDevice, Buffer, LBA, NumberOfBlocks);\r | |
878ddf1f | 640 | }\r |
641 | \r | |
878ddf1f | 642 | if (EFI_ERROR (Status)) {\r |
643 | This->Reset (This, TRUE);\r | |
644 | Status = EFI_DEVICE_ERROR;\r | |
c094abe5 | 645 | goto Done;\r |
878ddf1f | 646 | }\r |
4d1fe68e | 647 | \r |
648 | if (NumberOfBlocks > BLOCK_UNIT) {\r | |
649 | NumberOfBlocks -= BLOCK_UNIT;\r | |
650 | LBA += BLOCK_UNIT;\r | |
651 | Buffer = (UINT8 *) Buffer + This->Media->BlockSize * BLOCK_UNIT;\r | |
652 | } else {\r | |
653 | NumberOfBlocks -= NumberOfBlocks;\r | |
654 | LBA += NumberOfBlocks;\r | |
655 | Buffer = (UINT8 *) Buffer + This->Media->BlockSize * NumberOfBlocks;\r | |
656 | }\r | |
657 | }\r | |
878ddf1f | 658 | \r |
659 | Done:\r | |
c094abe5 | 660 | gBS->RestoreTPL (OldTpl);\r |
878ddf1f | 661 | return Status;\r |
662 | }\r | |
663 | \r | |
664 | STATIC\r | |
665 | EFI_STATUS\r | |
666 | EFIAPI\r | |
667 | USBFloppyFlushBlocks (\r | |
668 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
669 | )\r | |
670 | /*++\r | |
671 | \r | |
672 | Routine Description:\r | |
673 | Implements EFI_BLOCK_IO_PROTOCOL.FlushBlocks() function.\r | |
674 | (In this driver, this function just returns EFI_SUCCESS.)\r | |
4d1fe68e | 675 | \r |
878ddf1f | 676 | Arguments:\r |
677 | This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
4d1fe68e | 678 | \r |
679 | Returns:\r | |
878ddf1f | 680 | EFI_SUCCESS - Success\r |
4d1fe68e | 681 | --*/\r |
878ddf1f | 682 | {\r |
683 | return EFI_SUCCESS;\r | |
684 | }\r |