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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 | UsbMassStorageHelper.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Helper functions for USB Mass Storage Driver\r | |
19 | \r | |
20 | Revision History\r | |
21 | \r | |
22 | --*/\r | |
23 | \r | |
24 | #include "UsbMassStorageHelper.h"\r | |
25 | \r | |
26 | STATIC\r | |
27 | BOOLEAN\r | |
28 | IsNoMedia (\r | |
29 | IN REQUEST_SENSE_DATA *SenseData,\r | |
30 | IN UINTN SenseCounts\r | |
31 | );\r | |
32 | \r | |
33 | STATIC\r | |
34 | BOOLEAN\r | |
35 | IsMediaError (\r | |
36 | IN REQUEST_SENSE_DATA *SenseData,\r | |
37 | IN UINTN SenseCounts\r | |
38 | );\r | |
39 | \r | |
40 | STATIC\r | |
41 | BOOLEAN\r | |
42 | IsMediaChange (\r | |
43 | IN REQUEST_SENSE_DATA *SenseData,\r | |
44 | IN UINTN SenseCounts\r | |
45 | );\r | |
46 | \r | |
47 | STATIC\r | |
48 | BOOLEAN\r | |
49 | IsDriveReady (\r | |
50 | IN REQUEST_SENSE_DATA *SenseData,\r | |
51 | IN UINTN SenseCounts,\r | |
52 | OUT BOOLEAN *NeedRetry\r | |
53 | );\r | |
54 | \r | |
55 | STATIC\r | |
56 | BOOLEAN\r | |
57 | IsMediaWriteProtected (\r | |
58 | IN REQUEST_SENSE_DATA *SenseData,\r | |
59 | IN UINTN SenseCounts\r | |
60 | );\r | |
61 | \r | |
62 | STATIC\r | |
63 | BOOLEAN\r | |
64 | IsLogicalUnitCommunicationOverRun (\r | |
65 | IN REQUEST_SENSE_DATA *SenseData,\r | |
66 | IN UINTN SenseCounts\r | |
67 | );\r | |
68 | \r | |
69 | EFI_STATUS\r | |
70 | USBFloppyPacketCommand (\r | |
71 | USB_FLOPPY_DEV *UsbFloppyDevice,\r | |
72 | VOID *Command,\r | |
73 | UINT8 CommandSize,\r | |
74 | VOID *DataBuffer,\r | |
75 | UINT32 BufferLength,\r | |
76 | EFI_USB_DATA_DIRECTION Direction,\r | |
77 | UINT16 TimeOutInMilliSeconds\r | |
78 | )\r | |
79 | /*++\r | |
80 | \r | |
81 | Routine Description:\r | |
82 | Sends Packet Command to USB Floppy Drive.\r | |
83 | \r | |
84 | Arguments:\r | |
85 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
86 | Command - A pointer to the command packet.\r | |
87 | CommandSize - Indicates the size of the command packet.\r | |
88 | DataBuffer - A pointer to the buffer for the data transfer\r | |
89 | after the command packet. \r | |
90 | BufferLength - Indicates the size of the Data Buffer.\r | |
91 | Direction - Transfer Direction\r | |
92 | TimeOutInMilliSeconds - Timeout Value\r | |
93 | Returns: \r | |
94 | EFI_SUCCESS - Success\r | |
95 | --*/ \r | |
96 | {\r | |
97 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
98 | EFI_STATUS Status;\r | |
99 | \r | |
100 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
101 | //\r | |
102 | // Directly calling EFI_USB_ATAPI_PROTOCOL.UsbAtapiPacketCmd()\r | |
103 | // to perform the command request.\r | |
104 | //\r | |
105 | Status = UsbAtapiInterface->UsbAtapiPacketCmd (\r | |
106 | UsbAtapiInterface,\r | |
107 | Command,\r | |
108 | CommandSize,\r | |
109 | DataBuffer,\r | |
110 | BufferLength,\r | |
111 | Direction,\r | |
112 | TimeOutInMilliSeconds\r | |
113 | );\r | |
114 | \r | |
115 | return Status;\r | |
116 | }\r | |
117 | \r | |
118 | EFI_STATUS\r | |
119 | USBFloppyIdentify (\r | |
120 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
121 | )\r | |
122 | /*++\r | |
123 | \r | |
124 | Routine Description:\r | |
125 | Retrieves device information to tell the device type.\r | |
126 | \r | |
127 | Arguments:\r | |
128 | UsbFloppyDevice The USB_FLOPPY_DEV instance.\r | |
129 | \r | |
130 | Returns: \r | |
131 | EFI_DEVICE_ERROR - Hardware error\r | |
132 | EFI_SUCCESS - Success\r | |
133 | --*/ \r | |
134 | {\r | |
135 | \r | |
136 | EFI_STATUS Status;\r | |
137 | USB_INQUIRY_DATA *Idata;\r | |
138 | BOOLEAN MediaChange;\r | |
139 | \r | |
140 | //\r | |
141 | // Send Inquiry Packet Command to get INQUIRY data.\r | |
142 | //\r | |
143 | Status = USBFloppyInquiry (UsbFloppyDevice, &Idata);\r | |
144 | if (EFI_ERROR (Status)) {\r | |
145 | return EFI_DEVICE_ERROR;\r | |
146 | }\r | |
147 | \r | |
148 | //\r | |
149 | // Get media removable info from INQUIRY data.\r | |
150 | //\r | |
151 | UsbFloppyDevice->BlkIo.Media->RemovableMedia = (UINT8) ((Idata->RMB & 0x80) == 0x80);\r | |
152 | \r | |
153 | //\r | |
154 | // Identify device type via INQUIRY data.\r | |
155 | //\r | |
156 | switch ((Idata->peripheral_type) & 0x1f) {\r | |
157 | //\r | |
158 | // Floppy\r | |
159 | //\r | |
160 | case 0x00:\r | |
161 | UsbFloppyDevice->DeviceType = USBFLOPPY;\r | |
162 | UsbFloppyDevice->BlkIo.Media->MediaId = 0;\r | |
163 | UsbFloppyDevice->BlkIo.Media->MediaPresent = FALSE;\r | |
164 | UsbFloppyDevice->BlkIo.Media->LastBlock = 0;\r | |
165 | UsbFloppyDevice->BlkIo.Media->BlockSize = 0x200;\r | |
166 | break;\r | |
167 | \r | |
168 | //\r | |
169 | // CD-ROM\r | |
170 | //\r | |
171 | case 0x05:\r | |
172 | UsbFloppyDevice->DeviceType = USBCDROM;\r | |
173 | UsbFloppyDevice->BlkIo.Media->MediaId = 0;\r | |
174 | UsbFloppyDevice->BlkIo.Media->MediaPresent = FALSE;\r | |
175 | UsbFloppyDevice->BlkIo.Media->LastBlock = 0;\r | |
176 | UsbFloppyDevice->BlkIo.Media->BlockSize = 0x800;\r | |
177 | UsbFloppyDevice->BlkIo.Media->ReadOnly = TRUE;\r | |
178 | break;\r | |
179 | \r | |
180 | default:\r | |
181 | gBS->FreePool (Idata);\r | |
182 | return EFI_DEVICE_ERROR;\r | |
183 | };\r | |
184 | \r | |
185 | //\r | |
186 | // Initialize some device specific data.\r | |
187 | //\r | |
188 | //\r | |
189 | // original sense data numbers\r | |
190 | //\r | |
191 | UsbFloppyDevice->SenseDataNumber = 6;\r | |
192 | \r | |
193 | if (UsbFloppyDevice->SenseData != NULL) {\r | |
194 | gBS->FreePool (UsbFloppyDevice->SenseData);\r | |
195 | UsbFloppyDevice->SenseData = NULL;\r | |
196 | }\r | |
197 | \r | |
198 | UsbFloppyDevice->SenseData = AllocatePool (UsbFloppyDevice->SenseDataNumber * sizeof (REQUEST_SENSE_DATA));\r | |
199 | \r | |
200 | if (UsbFloppyDevice->SenseData == NULL) {\r | |
201 | gBS->FreePool (Idata);\r | |
202 | return EFI_DEVICE_ERROR;\r | |
203 | }\r | |
204 | \r | |
205 | //\r | |
206 | // Get media information.\r | |
207 | //\r | |
208 | UsbFloppyDetectMedia (UsbFloppyDevice, &MediaChange);\r | |
209 | \r | |
210 | gBS->FreePool (Idata);\r | |
211 | \r | |
212 | return EFI_SUCCESS;\r | |
213 | }\r | |
214 | \r | |
215 | EFI_STATUS\r | |
216 | USBFloppyInquiry (\r | |
217 | IN USB_FLOPPY_DEV *UsbFloppyDevice,\r | |
218 | OUT USB_INQUIRY_DATA **Idata\r | |
219 | )\r | |
220 | /*++\r | |
221 | \r | |
222 | Routine Description:\r | |
223 | Send Inquiry Packet Command to device and retrieve Inquiry Data.\r | |
224 | \r | |
225 | Arguments:\r | |
226 | UsbFloppyDevice The USB_FLOPPY_DEV instance.\r | |
227 | Idata A pointer pointing to the address of \r | |
228 | Inquiry Data.\r | |
229 | \r | |
230 | Returns: \r | |
231 | EFI_DEVICE_ERROR - Hardware error\r | |
232 | EFI_SUCCESS - Success\r | |
233 | --*/ \r | |
234 | {\r | |
235 | ATAPI_PACKET_COMMAND Packet;\r | |
236 | EFI_STATUS Status;\r | |
237 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
238 | \r | |
239 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
240 | \r | |
241 | //\r | |
242 | // prepare command packet for the Inquiry Packet Command.\r | |
243 | //\r | |
244 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
245 | Packet.Inquiry.opcode = INQUIRY;\r | |
246 | Packet.Inquiry.page_code = 0;\r | |
247 | Packet.Inquiry.allocation_length = sizeof (USB_INQUIRY_DATA);\r | |
248 | \r | |
249 | *Idata = AllocateZeroPool (sizeof (USB_INQUIRY_DATA));\r | |
250 | if (*Idata == NULL) {\r | |
251 | return EFI_DEVICE_ERROR;\r | |
252 | }\r | |
253 | //\r | |
254 | // Send command packet and retrieve requested Inquiry Data.\r | |
255 | //\r | |
256 | Status = USBFloppyPacketCommand (\r | |
257 | UsbFloppyDevice,\r | |
258 | &Packet,\r | |
259 | sizeof (ATAPI_PACKET_COMMAND),\r | |
260 | (VOID *) (*Idata),\r | |
261 | sizeof (USB_INQUIRY_DATA),\r | |
262 | EfiUsbDataIn,\r | |
263 | USBFLPTIMEOUT * 3\r | |
264 | );\r | |
265 | if (EFI_ERROR (Status)) {\r | |
266 | gBS->FreePool (*Idata);\r | |
267 | return EFI_DEVICE_ERROR;\r | |
268 | }\r | |
269 | \r | |
270 | return EFI_SUCCESS;\r | |
271 | }\r | |
272 | \r | |
273 | EFI_STATUS\r | |
274 | USBFloppyRead10 (\r | |
275 | IN USB_FLOPPY_DEV *UsbFloppyDevice,\r | |
276 | IN VOID *Buffer,\r | |
277 | IN EFI_LBA Lba,\r | |
278 | IN UINTN NumberOfBlocks\r | |
279 | )\r | |
280 | /*++\r | |
281 | \r | |
282 | Routine Description:\r | |
283 | Sends Read10 Packet Command to device to perform data transfer\r | |
284 | from device to host.\r | |
285 | \r | |
286 | Arguments:\r | |
287 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
288 | Buffer - A pointer to the destination buffer for the data. \r | |
289 | The caller is responsible for either having implicit\r | |
290 | or explicit ownership of the buffer.\r | |
291 | Lba - The starting logical block address to read from \r | |
292 | on the device.\r | |
293 | NumberOfBlocks - Indicates the number of blocks that the read \r | |
294 | operation requests.\r | |
295 | \r | |
296 | Returns: \r | |
297 | EFI_DEVICE_ERROR - Hardware error\r | |
298 | EFI_SUCCESS - Success\r | |
299 | --*/ \r | |
300 | {\r | |
301 | ATAPI_PACKET_COMMAND Packet;\r | |
302 | READ10_CMD *Read10Packet;\r | |
303 | UINT16 MaxBlock;\r | |
304 | UINT16 BlocksRemaining;\r | |
305 | UINT16 SectorCount;\r | |
306 | UINT32 Lba32;\r | |
307 | UINT32 BlockSize;\r | |
308 | UINT32 ByteCount;\r | |
309 | VOID *ptrBuffer;\r | |
310 | EFI_STATUS Status;\r | |
311 | UINT16 TimeOut;\r | |
312 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
313 | UINTN SenseCounts;\r | |
314 | \r | |
315 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
316 | \r | |
317 | //\r | |
318 | // prepare command packet for the Inquiry Packet Command.\r | |
319 | //\r | |
320 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
321 | Read10Packet = &Packet.Read10;\r | |
322 | Lba32 = (UINT32) Lba;\r | |
323 | ptrBuffer = Buffer;\r | |
324 | BlockSize = UsbFloppyDevice->BlkIo.Media->BlockSize;\r | |
325 | \r | |
326 | MaxBlock = (UINT16) (65536 / BlockSize);\r | |
327 | BlocksRemaining = (UINT16) NumberOfBlocks;\r | |
328 | \r | |
329 | Status = EFI_SUCCESS;\r | |
330 | while (BlocksRemaining > 0) {\r | |
331 | if (BlocksRemaining <= MaxBlock) {\r | |
332 | SectorCount = BlocksRemaining;\r | |
333 | } else {\r | |
334 | SectorCount = MaxBlock;\r | |
335 | }\r | |
336 | //\r | |
337 | // fill the Packet data structure\r | |
338 | //\r | |
339 | Read10Packet->opcode = READ_10;\r | |
340 | \r | |
341 | //\r | |
342 | // Lba0 ~ Lba3 specify the start logical block address of the data transfer.\r | |
343 | // Lba0 is MSB, Lba3 is LSB\r | |
344 | //\r | |
345 | Read10Packet->Lba3 = (UINT8) (Lba32 & 0xff);\r | |
346 | Read10Packet->Lba2 = (UINT8) (Lba32 >> 8);\r | |
347 | Read10Packet->Lba1 = (UINT8) (Lba32 >> 16);\r | |
348 | Read10Packet->Lba0 = (UINT8) (Lba32 >> 24);\r | |
349 | \r | |
350 | //\r | |
351 | // TranLen0 ~ TranLen1 specify the transfer length in block unit.\r | |
352 | // TranLen0 is MSB, TranLen is LSB\r | |
353 | //\r | |
354 | Read10Packet->TranLen1 = (UINT8) (SectorCount & 0xff);\r | |
355 | Read10Packet->TranLen0 = (UINT8) (SectorCount >> 8);\r | |
356 | \r | |
357 | ByteCount = SectorCount * BlockSize;\r | |
358 | \r | |
359 | TimeOut = (UINT16) (SectorCount * USBFLPTIMEOUT);\r | |
360 | \r | |
361 | Status = USBFloppyPacketCommand (\r | |
362 | UsbFloppyDevice,\r | |
363 | &Packet,\r | |
364 | sizeof (ATAPI_PACKET_COMMAND),\r | |
365 | (VOID *) ptrBuffer,\r | |
366 | ByteCount,\r | |
367 | EfiUsbDataIn,\r | |
368 | TimeOut\r | |
369 | );\r | |
370 | if (EFI_ERROR (Status)) {\r | |
371 | \r | |
372 | Status = UsbFloppyRequestSense (UsbFloppyDevice, &SenseCounts);\r | |
373 | if (!EFI_ERROR (Status)) {\r | |
374 | if (IsLogicalUnitCommunicationOverRun (\r | |
375 | UsbFloppyDevice->SenseData,\r | |
376 | SenseCounts\r | |
377 | )) {\r | |
378 | Lba32 = (UINT32) Lba;\r | |
379 | ptrBuffer = Buffer;\r | |
380 | BlocksRemaining = (UINT16) NumberOfBlocks;\r | |
381 | MaxBlock = (UINT16) (MaxBlock / 4);\r | |
382 | if (MaxBlock < 1) {\r | |
383 | MaxBlock = 1;\r | |
384 | }\r | |
385 | \r | |
386 | continue;\r | |
387 | }\r | |
388 | } else {\r | |
389 | return EFI_DEVICE_ERROR;\r | |
390 | }\r | |
391 | //\r | |
392 | // retry read10 command\r | |
393 | //\r | |
394 | Status = USBFloppyPacketCommand (\r | |
395 | UsbFloppyDevice,\r | |
396 | &Packet,\r | |
397 | sizeof (ATAPI_PACKET_COMMAND),\r | |
398 | (VOID *) ptrBuffer,\r | |
399 | ByteCount,\r | |
400 | EfiUsbDataIn,\r | |
401 | TimeOut\r | |
402 | );\r | |
403 | if (EFI_ERROR (Status)) {\r | |
404 | return EFI_DEVICE_ERROR;\r | |
405 | }\r | |
406 | }\r | |
407 | \r | |
408 | Lba32 += SectorCount;\r | |
409 | ptrBuffer = (UINT8 *) ptrBuffer + SectorCount * BlockSize;\r | |
410 | BlocksRemaining = (UINT16) (BlocksRemaining - SectorCount);\r | |
411 | }\r | |
412 | \r | |
413 | return Status;\r | |
414 | }\r | |
415 | \r | |
416 | EFI_STATUS\r | |
417 | USBFloppyReadCapacity (\r | |
418 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
419 | )\r | |
420 | /*++\r | |
421 | \r | |
422 | Routine Description:\r | |
423 | Retrieves media capacity information via \r | |
424 | sending Read Capacity Packet Command.\r | |
425 | \r | |
426 | Arguments:\r | |
427 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
428 | \r | |
429 | Returns: \r | |
430 | EFI_DEVICE_ERROR - Hardware error\r | |
431 | EFI_SUCCESS - Success\r | |
432 | --*/ \r | |
433 | { \r | |
434 | //\r | |
435 | // status returned by Read Capacity Packet Command\r | |
436 | //\r | |
437 | EFI_STATUS Status;\r | |
438 | ATAPI_PACKET_COMMAND Packet;\r | |
439 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
440 | \r | |
441 | //\r | |
442 | // used for capacity data returned from Usb Floppy\r | |
443 | //\r | |
444 | READ_CAPACITY_DATA Data;\r | |
445 | \r | |
446 | ZeroMem (&Data, sizeof (Data));\r | |
447 | \r | |
448 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
449 | \r | |
450 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
451 | Packet.Inquiry.opcode = READ_CAPACITY;\r | |
452 | Status = USBFloppyPacketCommand (\r | |
453 | UsbFloppyDevice,\r | |
454 | &Packet,\r | |
455 | sizeof (ATAPI_PACKET_COMMAND),\r | |
456 | (VOID *) &Data,\r | |
457 | sizeof (READ_CAPACITY_DATA),\r | |
458 | EfiUsbDataIn,\r | |
459 | USBFLPTIMEOUT\r | |
460 | );\r | |
461 | \r | |
462 | if (EFI_ERROR (Status)) {\r | |
463 | return EFI_DEVICE_ERROR;\r | |
464 | }\r | |
465 | \r | |
466 | UsbFloppyDevice->BlkIo.Media->LastBlock = (Data.LastLba3 << 24) |\r | |
467 | (Data.LastLba2 << 16) |\r | |
468 | (Data.LastLba1 << 8) |\r | |
469 | Data.LastLba0;\r | |
470 | \r | |
471 | UsbFloppyDevice->BlkIo.Media->MediaPresent = TRUE;\r | |
472 | \r | |
473 | UsbFloppyDevice->BlkIo.Media->BlockSize = 0x800;\r | |
474 | \r | |
475 | return EFI_SUCCESS;\r | |
476 | \r | |
477 | }\r | |
478 | \r | |
479 | EFI_STATUS\r | |
480 | USBFloppyReadFormatCapacity (\r | |
481 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
482 | )\r | |
483 | /*++\r | |
484 | \r | |
485 | Routine Description:\r | |
486 | Retrieves media capacity information via sending Read Format \r | |
487 | Capacity Packet Command.\r | |
488 | \r | |
489 | Arguments:\r | |
490 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
491 | \r | |
492 | Returns: \r | |
493 | EFI_DEVICE_ERROR - Hardware error\r | |
494 | EFI_SUCCESS - Success\r | |
495 | --*/ \r | |
496 | { \r | |
497 | //\r | |
498 | // status returned by Read Capacity Packet Command\r | |
499 | //\r | |
500 | EFI_STATUS Status;\r | |
501 | ATAPI_PACKET_COMMAND Packet;\r | |
502 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
503 | \r | |
504 | //\r | |
505 | // used for capacity data returned from Usb Floppy\r | |
506 | //\r | |
507 | READ_FORMAT_CAPACITY_DATA FormatData;\r | |
508 | \r | |
509 | ZeroMem (&FormatData, sizeof (FormatData));\r | |
510 | \r | |
511 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
512 | \r | |
513 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
514 | Packet.ReadFormatCapacity.opcode = READ_FORMAT_CAPACITY;\r | |
515 | Packet.ReadFormatCapacity.allocation_length_lo = 12;\r | |
516 | Status = USBFloppyPacketCommand (\r | |
517 | UsbFloppyDevice,\r | |
518 | &Packet,\r | |
519 | sizeof (ATAPI_PACKET_COMMAND),\r | |
520 | (VOID *) &FormatData,\r | |
521 | sizeof (READ_FORMAT_CAPACITY_DATA),\r | |
522 | EfiUsbDataIn,\r | |
523 | USBFLPTIMEOUT\r | |
524 | );\r | |
525 | \r | |
526 | if (EFI_ERROR (Status)) {\r | |
527 | return EFI_DEVICE_ERROR;\r | |
528 | }\r | |
529 | \r | |
530 | if (FormatData.DesCode == 3) {\r | |
531 | //\r | |
532 | // Media is not present\r | |
533 | //\r | |
534 | UsbFloppyDevice->BlkIo.Media->MediaId = 0;\r | |
535 | UsbFloppyDevice->BlkIo.Media->MediaPresent = FALSE;\r | |
536 | UsbFloppyDevice->BlkIo.Media->LastBlock = 0;\r | |
537 | } else {\r | |
538 | \r | |
539 | UsbFloppyDevice->BlkIo.Media->LastBlock = (FormatData.LastLba3 << 24) |\r | |
540 | (FormatData.LastLba2 << 16) | \r | |
541 | (FormatData.LastLba1 << 8) |\r | |
542 | FormatData.LastLba0;\r | |
543 | \r | |
544 | UsbFloppyDevice->BlkIo.Media->LastBlock--;\r | |
545 | \r | |
546 | UsbFloppyDevice->BlkIo.Media->BlockSize = (FormatData.BlockSize2 << 16) |\r | |
547 | (FormatData.BlockSize1 << 8) |\r | |
548 | FormatData.BlockSize0;\r | |
549 | \r | |
550 | UsbFloppyDevice->BlkIo.Media->MediaPresent = TRUE;\r | |
551 | \r | |
552 | UsbFloppyDevice->BlkIo.Media->BlockSize = 0x200;\r | |
553 | \r | |
554 | }\r | |
555 | \r | |
556 | return EFI_SUCCESS;\r | |
557 | \r | |
558 | }\r | |
559 | \r | |
560 | EFI_STATUS\r | |
561 | UsbFloppyRequestSense (\r | |
562 | IN USB_FLOPPY_DEV *UsbFloppyDevice,\r | |
563 | OUT UINTN *SenseCounts\r | |
564 | )\r | |
565 | /*++\r | |
566 | \r | |
567 | Routine Description:\r | |
568 | Retrieves Sense Data from device via \r | |
569 | sending Request Sense Packet Command.\r | |
570 | \r | |
571 | Arguments:\r | |
572 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
573 | SenseCounts - A pointer to the number of Sense Data returned.\r | |
574 | \r | |
575 | Returns: \r | |
576 | EFI_DEVICE_ERROR - Hardware error\r | |
577 | EFI_SUCCESS - Success\r | |
578 | --*/ \r | |
579 | {\r | |
580 | EFI_STATUS Status;\r | |
581 | REQUEST_SENSE_DATA *Sense;\r | |
582 | UINT8 *Ptr;\r | |
583 | BOOLEAN SenseReq;\r | |
584 | ATAPI_PACKET_COMMAND Packet;\r | |
585 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
586 | \r | |
587 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
588 | \r | |
589 | *SenseCounts = 0;\r | |
590 | \r | |
591 | ZeroMem (\r | |
592 | UsbFloppyDevice->SenseData,\r | |
593 | sizeof (REQUEST_SENSE_DATA) * (UsbFloppyDevice->SenseDataNumber)\r | |
594 | );\r | |
595 | //\r | |
596 | // fill command packet for Request Sense Packet Command\r | |
597 | //\r | |
598 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
599 | Packet.RequestSense.opcode = REQUEST_SENSE;\r | |
600 | Packet.RequestSense.allocation_length = sizeof (REQUEST_SENSE_DATA);\r | |
601 | \r | |
602 | //\r | |
603 | // initialize pointer\r | |
604 | //\r | |
605 | Ptr = (UINT8 *) (UsbFloppyDevice->SenseData);\r | |
606 | \r | |
607 | //\r | |
608 | // request sense data from device continuously\r | |
609 | // until no sense data exists in the device.\r | |
610 | //\r | |
611 | for (SenseReq = TRUE; SenseReq;) {\r | |
612 | \r | |
613 | Sense = (REQUEST_SENSE_DATA *) Ptr;\r | |
614 | \r | |
615 | //\r | |
616 | // send out Request Sense Packet Command and get one Sense\r | |
617 | // data from device.\r | |
618 | //\r | |
619 | Status = USBFloppyPacketCommand (\r | |
620 | UsbFloppyDevice,\r | |
621 | &Packet,\r | |
622 | sizeof (ATAPI_PACKET_COMMAND),\r | |
623 | (VOID *) Ptr,\r | |
624 | sizeof (REQUEST_SENSE_DATA),\r | |
625 | EfiUsbDataIn,\r | |
626 | USBFLPTIMEOUT\r | |
627 | );\r | |
628 | //\r | |
629 | // failed to get Sense data\r | |
630 | //\r | |
631 | if (EFI_ERROR (Status)) {\r | |
632 | //\r | |
633 | // Recovery the device back to normal state.\r | |
634 | //\r | |
635 | UsbFloppyDevice->AtapiProtocol->UsbAtapiReset (\r | |
636 | UsbFloppyDevice->AtapiProtocol,\r | |
637 | TRUE\r | |
638 | );\r | |
639 | \r | |
640 | if (*SenseCounts == 0) {\r | |
641 | //\r | |
642 | // never retrieved any sense data from device,\r | |
643 | // just return error.\r | |
644 | //\r | |
645 | return EFI_DEVICE_ERROR;\r | |
646 | } else {\r | |
647 | //\r | |
648 | // has retrieved some sense data from device,\r | |
649 | // so return success.\r | |
650 | //\r | |
651 | return EFI_SUCCESS;\r | |
652 | }\r | |
653 | }\r | |
654 | \r | |
655 | if (Sense->sense_key != SK_NO_SENSE) {\r | |
656 | //\r | |
657 | // Ptr is byte based pointer\r | |
658 | //\r | |
659 | Ptr += sizeof (REQUEST_SENSE_DATA);\r | |
660 | \r | |
661 | (*SenseCounts)++;\r | |
662 | \r | |
663 | } else {\r | |
664 | //\r | |
665 | // when no sense key, skip out the loop\r | |
666 | //\r | |
667 | SenseReq = FALSE;\r | |
668 | }\r | |
669 | \r | |
670 | //\r | |
671 | // If the sense key numbers exceed Sense Data Buffer size,\r | |
672 | // just skip the loop and do not fetch the sense key in this function.\r | |
673 | //\r | |
674 | if (*SenseCounts == UsbFloppyDevice->SenseDataNumber) {\r | |
675 | SenseReq = FALSE;\r | |
676 | }\r | |
677 | }\r | |
678 | \r | |
679 | return EFI_SUCCESS;\r | |
680 | }\r | |
681 | \r | |
682 | EFI_STATUS\r | |
683 | UsbFloppyTestUnitReady (\r | |
684 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
685 | )\r | |
686 | /*++\r | |
687 | \r | |
688 | Routine Description:\r | |
689 | Sends Test Unit ReadyPacket Command to the device.\r | |
690 | \r | |
691 | Arguments:\r | |
692 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
693 | \r | |
694 | Returns: \r | |
695 | EFI_DEVICE_ERROR - Hardware error\r | |
696 | EFI_SUCCESS - Success\r | |
697 | --*/ \r | |
698 | { \r | |
699 | ATAPI_PACKET_COMMAND Packet; \r | |
700 | EFI_STATUS Status;\r | |
701 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
702 | UINT32 RetryIndex;\r | |
703 | UINT32 MaximumRetryTimes;\r | |
704 | \r | |
705 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
706 | MaximumRetryTimes = 2;\r | |
707 | //\r | |
708 | // fill command packet \r | |
709 | //\r | |
710 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
711 | Packet.TestUnitReady.opcode = TEST_UNIT_READY;\r | |
712 | \r | |
713 | //\r | |
714 | // send command packet\r | |
715 | //\r | |
716 | Status = EFI_DEVICE_ERROR;\r | |
717 | \r | |
718 | for (RetryIndex = 0; RetryIndex < MaximumRetryTimes && EFI_ERROR (Status); RetryIndex++) {\r | |
719 | \r | |
720 | Status = USBFloppyPacketCommand (\r | |
721 | UsbFloppyDevice,\r | |
722 | &Packet,\r | |
723 | sizeof (ATAPI_PACKET_COMMAND),\r | |
724 | NULL,\r | |
725 | 0,\r | |
726 | EfiUsbNoData,\r | |
727 | USBFLPTIMEOUT\r | |
728 | );\r | |
729 | \r | |
730 | if (EFI_ERROR (Status)) {\r | |
731 | gBS->Stall (100 * STALL_1_MILLI_SECOND);\r | |
732 | }\r | |
733 | }\r | |
734 | \r | |
735 | return Status;\r | |
736 | }\r | |
737 | \r | |
738 | EFI_STATUS\r | |
739 | USBFloppyWrite10 (\r | |
740 | IN USB_FLOPPY_DEV *UsbFloppyDevice,\r | |
741 | IN VOID *Buffer,\r | |
742 | IN EFI_LBA Lba,\r | |
743 | IN UINTN NumberOfBlocks\r | |
744 | )\r | |
745 | /*++\r | |
746 | \r | |
747 | Routine Description:\r | |
748 | Sends Write10 Packet Command to device to perform data transfer\r | |
749 | from host to device.\r | |
750 | \r | |
751 | Arguments:\r | |
752 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
753 | Buffer - A pointer to the source buffer for the data. \r | |
754 | The caller is responsible for either having implicit\r | |
755 | or explicit ownership of the buffer.\r | |
756 | Lba - The starting logical block address to written to \r | |
757 | the device.\r | |
758 | NumberOfBlocks - Indicates the number of blocks that the write \r | |
759 | operation requests.\r | |
760 | \r | |
761 | Returns: \r | |
762 | EFI_DEVICE_ERROR - Hardware error\r | |
763 | EFI_SUCCESS - Success\r | |
764 | --*/ \r | |
765 | {\r | |
766 | ATAPI_PACKET_COMMAND Packet;\r | |
767 | READ10_CMD *Write10Packet;\r | |
768 | UINT16 MaxBlock;\r | |
769 | UINT16 BlocksRemaining;\r | |
770 | UINT16 SectorCount;\r | |
771 | UINT32 Lba32;\r | |
772 | UINT32 BlockSize;\r | |
773 | UINT32 ByteCount;\r | |
774 | VOID *ptrBuffer;\r | |
775 | EFI_STATUS Status;\r | |
776 | UINT16 TimeOut;\r | |
777 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
778 | UINTN SenseCounts;\r | |
779 | \r | |
780 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
781 | \r | |
782 | //\r | |
783 | // prepare command packet for the Write10 Packet Command.\r | |
784 | //\r | |
785 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
786 | Write10Packet = &Packet.Read10;\r | |
787 | Lba32 = (UINT32) Lba;\r | |
788 | ptrBuffer = Buffer;\r | |
789 | BlockSize = UsbFloppyDevice->BlkIo.Media->BlockSize;\r | |
790 | \r | |
791 | MaxBlock = (UINT16) (65536 / BlockSize);\r | |
792 | BlocksRemaining = (UINT16) NumberOfBlocks;\r | |
793 | \r | |
794 | Status = EFI_SUCCESS;\r | |
795 | while (BlocksRemaining > 0) {\r | |
796 | \r | |
797 | if (BlocksRemaining <= MaxBlock) {\r | |
798 | \r | |
799 | SectorCount = BlocksRemaining;\r | |
800 | } else {\r | |
801 | \r | |
802 | SectorCount = MaxBlock;\r | |
803 | }\r | |
804 | //\r | |
805 | // fill the Packet data structure\r | |
806 | //\r | |
807 | Write10Packet->opcode = WRITE_10;\r | |
808 | \r | |
809 | //\r | |
810 | // Lba0 ~ Lba3 specify the start logical block address\r | |
811 | // of the data transfer.\r | |
812 | // Lba0 is MSB, Lba3 is LSB\r | |
813 | //\r | |
814 | Write10Packet->Lba3 = (UINT8) (Lba32 & 0xff);\r | |
815 | Write10Packet->Lba2 = (UINT8) (Lba32 >> 8);\r | |
816 | Write10Packet->Lba1 = (UINT8) (Lba32 >> 16);\r | |
817 | Write10Packet->Lba0 = (UINT8) (Lba32 >> 24);\r | |
818 | \r | |
819 | //\r | |
820 | // TranLen0 ~ TranLen1 specify the transfer length in block unit.\r | |
821 | // TranLen0 is MSB, TranLen is LSB\r | |
822 | //\r | |
823 | Write10Packet->TranLen1 = (UINT8) (SectorCount & 0xff);\r | |
824 | Write10Packet->TranLen0 = (UINT8) (SectorCount >> 8);\r | |
825 | \r | |
826 | ByteCount = SectorCount * BlockSize;\r | |
827 | \r | |
828 | TimeOut = (UINT16) (SectorCount * USBFLPTIMEOUT);\r | |
829 | \r | |
830 | Status = USBFloppyPacketCommand (\r | |
831 | UsbFloppyDevice,\r | |
832 | &Packet,\r | |
833 | sizeof (ATAPI_PACKET_COMMAND),\r | |
834 | (VOID *) ptrBuffer,\r | |
835 | ByteCount,\r | |
836 | EfiUsbDataOut,\r | |
837 | TimeOut\r | |
838 | );\r | |
839 | if (EFI_ERROR (Status)) {\r | |
840 | Status = UsbFloppyRequestSense (UsbFloppyDevice, &SenseCounts);\r | |
841 | if (!EFI_ERROR (Status)) {\r | |
842 | if (IsLogicalUnitCommunicationOverRun (\r | |
843 | UsbFloppyDevice->SenseData,\r | |
844 | SenseCounts\r | |
845 | )) {\r | |
846 | Lba32 = (UINT32) Lba;\r | |
847 | ptrBuffer = Buffer;\r | |
848 | BlocksRemaining = (UINT16) NumberOfBlocks;\r | |
849 | MaxBlock = (UINT16) (MaxBlock / 4);\r | |
850 | if (MaxBlock < 1) {\r | |
851 | MaxBlock = 1;\r | |
852 | }\r | |
853 | \r | |
854 | continue;\r | |
855 | }\r | |
856 | }\r | |
857 | //\r | |
858 | // retry write10 command\r | |
859 | //\r | |
860 | Status = USBFloppyPacketCommand (\r | |
861 | UsbFloppyDevice,\r | |
862 | &Packet,\r | |
863 | sizeof (ATAPI_PACKET_COMMAND),\r | |
864 | (VOID *) ptrBuffer,\r | |
865 | ByteCount,\r | |
866 | EfiUsbDataOut,\r | |
867 | TimeOut\r | |
868 | );\r | |
869 | if (EFI_ERROR (Status)) {\r | |
870 | return EFI_DEVICE_ERROR;\r | |
871 | }\r | |
872 | }\r | |
873 | \r | |
874 | Lba32 += SectorCount;\r | |
875 | ptrBuffer = (UINT8 *) ptrBuffer + SectorCount * BlockSize;\r | |
876 | BlocksRemaining = (UINT16) (BlocksRemaining - SectorCount);\r | |
877 | }\r | |
878 | \r | |
879 | return Status;\r | |
880 | }\r | |
881 | \r | |
882 | EFI_STATUS\r | |
883 | UsbFloppyDetectMedia (\r | |
884 | IN USB_FLOPPY_DEV *UsbFloppyDevice,\r | |
885 | OUT BOOLEAN *MediaChange\r | |
886 | )\r | |
887 | /*++\r | |
888 | \r | |
889 | Routine Description:\r | |
890 | Retrieves media information.\r | |
891 | \r | |
892 | Arguments:\r | |
893 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
894 | MediaChange - Indicates whether media was changed.\r | |
895 | \r | |
896 | Returns: \r | |
897 | EFI_DEVICE_ERROR - Hardware error\r | |
898 | EFI_SUCCESS - Success\r | |
899 | EFI_INVALID_PARAMETER - Parameter is error\r | |
900 | --*/ \r | |
901 | {\r | |
902 | EFI_STATUS Status;\r | |
903 | EFI_STATUS FloppyStatus;\r | |
904 | //\r | |
905 | // the following variables are used to record previous media information\r | |
906 | //\r | |
907 | EFI_BLOCK_IO_MEDIA OldMediaInfo;\r | |
908 | UINTN SenseCounts;\r | |
909 | UINTN RetryIndex;\r | |
910 | UINTN RetryTimes;\r | |
911 | UINTN MaximumRetryTimes;\r | |
912 | BOOLEAN NeedRetry;\r | |
913 | \r | |
914 | //\r | |
915 | // a flag used to determine whether need to perform Read Capacity command.\r | |
916 | //\r | |
917 | BOOLEAN NeedReadCapacity;\r | |
918 | \r | |
919 | REQUEST_SENSE_DATA *SensePtr;\r | |
920 | \r | |
921 | //\r | |
922 | // init\r | |
923 | //\r | |
924 | Status = EFI_SUCCESS;\r | |
925 | FloppyStatus = EFI_SUCCESS;\r | |
926 | CopyMem (&OldMediaInfo, UsbFloppyDevice->BlkIo.Media, sizeof (OldMediaInfo));\r | |
878ddf1f | 927 | *MediaChange = FALSE;\r |
928 | NeedReadCapacity = TRUE;\r | |
929 | \r | |
930 | //\r | |
931 | // if there is no media present,or media not changed,\r | |
932 | // the request sense command will detect faster than read capacity command.\r | |
933 | // read capacity command can be bypassed, thus improve performance.\r | |
934 | //\r | |
935 | SenseCounts = 0;\r | |
936 | Status = UsbFloppyRequestSense (UsbFloppyDevice, &SenseCounts);\r | |
937 | \r | |
938 | if (!EFI_ERROR (Status)) {\r | |
939 | \r | |
940 | SensePtr = UsbFloppyDevice->SenseData;\r | |
941 | \r | |
942 | //\r | |
943 | // No Media\r | |
944 | //\r | |
945 | if (IsNoMedia (UsbFloppyDevice->SenseData, SenseCounts)) {\r | |
946 | \r | |
947 | NeedReadCapacity = FALSE;\r | |
948 | UsbFloppyDevice->BlkIo.Media->MediaId = 0;\r | |
949 | UsbFloppyDevice->BlkIo.Media->MediaPresent = FALSE;\r | |
950 | UsbFloppyDevice->BlkIo.Media->LastBlock = 0;\r | |
951 | } else {\r | |
952 | //\r | |
953 | // Media Changed\r | |
954 | //\r | |
955 | if (IsMediaChange (UsbFloppyDevice->SenseData, SenseCounts)) {\r | |
956 | UsbFloppyDevice->BlkIo.Media->MediaId++;\r | |
957 | }\r | |
958 | \r | |
959 | //\r | |
960 | // Media Write-protected\r | |
961 | //\r | |
962 | if (IsMediaWriteProtected (UsbFloppyDevice->SenseData, SenseCounts)) {\r | |
963 | UsbFloppyDevice->BlkIo.Media->ReadOnly = TRUE;\r | |
964 | }\r | |
965 | \r | |
966 | //\r | |
967 | // Media Error\r | |
968 | //\r | |
969 | if (IsMediaError (UsbFloppyDevice->SenseData, SenseCounts)) {\r | |
970 | //\r | |
971 | // if media error encountered, make it look like no media present.\r | |
972 | //\r | |
973 | UsbFloppyDevice->BlkIo.Media->MediaId = 0;\r | |
974 | UsbFloppyDevice->BlkIo.Media->MediaPresent = FALSE;\r | |
975 | UsbFloppyDevice->BlkIo.Media->LastBlock = 0;\r | |
976 | }\r | |
977 | \r | |
978 | }\r | |
979 | \r | |
980 | }\r | |
981 | \r | |
982 | if (NeedReadCapacity) {\r | |
983 | //\r | |
984 | // at most retry 5 times\r | |
985 | //\r | |
986 | MaximumRetryTimes = 5;\r | |
987 | //\r | |
988 | // initial retry twice\r | |
989 | //\r | |
990 | RetryTimes = 2;\r | |
991 | \r | |
992 | for (RetryIndex = 0; (RetryIndex < RetryTimes) && (RetryIndex < MaximumRetryTimes); RetryIndex++) {\r | |
993 | //\r | |
994 | // Using different command to retrieve media capacity.\r | |
995 | //\r | |
996 | switch (UsbFloppyDevice->DeviceType) {\r | |
997 | \r | |
998 | case USBCDROM:\r | |
999 | Status = USBFloppyReadCapacity (UsbFloppyDevice);\r | |
1000 | break;\r | |
1001 | \r | |
ea78388e | 1002 | case USBFLOPPY2:\r |
878ddf1f | 1003 | UsbMassStorageModeSense (UsbFloppyDevice);\r |
1004 | Status = USBFloppyReadFormatCapacity (UsbFloppyDevice);\r | |
1005 | if (EFI_ERROR (Status) || !UsbFloppyDevice->BlkMedia.MediaPresent) {\r | |
1006 | //\r | |
1007 | // retry the ReadCapacity command\r | |
1008 | //\r | |
ea78388e | 1009 | UsbFloppyDevice->DeviceType = USBFLOPPY;\r |
878ddf1f | 1010 | Status = EFI_DEVICE_ERROR;\r |
1011 | }\r | |
1012 | break;\r | |
1013 | \r | |
ea78388e | 1014 | case USBFLOPPY:\r |
878ddf1f | 1015 | UsbMassStorageModeSense (UsbFloppyDevice);\r |
1016 | Status = USBFloppyReadCapacity (UsbFloppyDevice);\r | |
1017 | if (EFI_ERROR (Status)) {\r | |
1018 | //\r | |
1019 | // retry the ReadFormatCapacity command\r | |
1020 | //\r | |
ea78388e | 1021 | UsbFloppyDevice->DeviceType = USBFLOPPY2;\r |
878ddf1f | 1022 | }\r |
1023 | //\r | |
1024 | // force the BlockSize to be 0x200.\r | |
1025 | //\r | |
1026 | UsbFloppyDevice->BlkIo.Media->BlockSize = 0x200;\r | |
1027 | break;\r | |
1028 | \r | |
1029 | default:\r | |
1030 | return EFI_INVALID_PARAMETER;\r | |
1031 | }\r | |
1032 | \r | |
1033 | if (!EFI_ERROR (Status)) {\r | |
1034 | //\r | |
1035 | // skip the loop when read capacity succeeds.\r | |
1036 | //\r | |
1037 | break;\r | |
1038 | }\r | |
1039 | \r | |
1040 | SenseCounts = 0;\r | |
1041 | \r | |
1042 | FloppyStatus = UsbFloppyRequestSense (UsbFloppyDevice, &SenseCounts);\r | |
1043 | \r | |
1044 | //\r | |
1045 | // If Request Sense data failed,retry.\r | |
1046 | //\r | |
1047 | if (EFI_ERROR (FloppyStatus)) {\r | |
1048 | //\r | |
1049 | // retry once more\r | |
1050 | //\r | |
1051 | RetryTimes++;\r | |
1052 | continue;\r | |
1053 | }\r | |
1054 | //\r | |
1055 | // No Media\r | |
1056 | //\r | |
1057 | if (IsNoMedia (UsbFloppyDevice->SenseData, SenseCounts)) {\r | |
1058 | \r | |
1059 | UsbFloppyDevice->BlkIo.Media->MediaId = 0;\r | |
1060 | UsbFloppyDevice->BlkIo.Media->MediaPresent = FALSE;\r | |
1061 | UsbFloppyDevice->BlkIo.Media->LastBlock = 0;\r | |
1062 | break;\r | |
1063 | }\r | |
1064 | \r | |
1065 | if (IsMediaError (UsbFloppyDevice->SenseData, SenseCounts)) {\r | |
1066 | //\r | |
1067 | // if media error encountered, make it look like no media present.\r | |
1068 | //\r | |
1069 | UsbFloppyDevice->BlkIo.Media->MediaId = 0;\r | |
1070 | UsbFloppyDevice->BlkIo.Media->MediaPresent = FALSE;\r | |
1071 | UsbFloppyDevice->BlkIo.Media->LastBlock = 0;\r | |
1072 | break;\r | |
1073 | }\r | |
1074 | \r | |
1075 | if (IsMediaWriteProtected (UsbFloppyDevice->SenseData, SenseCounts)) {\r | |
1076 | UsbFloppyDevice->BlkIo.Media->ReadOnly = TRUE;\r | |
1077 | continue;\r | |
1078 | }\r | |
1079 | \r | |
1080 | if (!IsDriveReady (UsbFloppyDevice->SenseData, SenseCounts, &NeedRetry)) {\r | |
1081 | \r | |
1082 | //\r | |
1083 | // Drive not ready: if NeedRetry, then retry once more;\r | |
1084 | // else return error\r | |
1085 | //\r | |
1086 | if (NeedRetry) {\r | |
1087 | //\r | |
1088 | // Stall 0.1 second to wait for drive becoming ready\r | |
1089 | //\r | |
1090 | gBS->Stall (100 * STALL_1_MILLI_SECOND);\r | |
1091 | //\r | |
1092 | // reset retry variable to zero,\r | |
1093 | // to make it retry for "drive in progress of becoming ready".\r | |
1094 | //\r | |
1095 | RetryIndex = 0;\r | |
1096 | continue;\r | |
1097 | } else {\r | |
1098 | return EFI_DEVICE_ERROR;\r | |
1099 | }\r | |
1100 | }\r | |
1101 | //\r | |
1102 | // if read capacity fail not for above reasons, retry once more\r | |
1103 | //\r | |
1104 | RetryTimes++;\r | |
1105 | \r | |
1106 | }\r | |
1107 | //\r | |
1108 | // ENDFOR\r | |
1109 | //\r | |
1110 | \r | |
1111 | //\r | |
1112 | // tell whether the readcapacity process is successful or not\r | |
1113 | // ("Status" variable record the latest status returned\r | |
1114 | // by ReadCapacity AND "FloppyStatus" record the latest status\r | |
1115 | // returned by RequestSense)\r | |
1116 | //\r | |
1117 | if (EFI_ERROR (Status) && EFI_ERROR (FloppyStatus)) {\r | |
1118 | return EFI_DEVICE_ERROR;\r | |
1119 | }\r | |
1120 | \r | |
1121 | }\r | |
1122 | \r | |
1123 | if (UsbFloppyDevice->BlkIo.Media->MediaPresent != OldMediaInfo.MediaPresent) {\r | |
1124 | \r | |
1125 | if (UsbFloppyDevice->BlkIo.Media->MediaPresent) {\r | |
1126 | UsbFloppyDevice->BlkIo.Media->MediaId = 1;\r | |
1127 | }\r | |
1128 | \r | |
1129 | *MediaChange = TRUE;\r | |
1130 | }\r | |
1131 | \r | |
1132 | if (UsbFloppyDevice->BlkIo.Media->ReadOnly != OldMediaInfo.ReadOnly) {\r | |
1133 | *MediaChange = TRUE;\r | |
1134 | UsbFloppyDevice->BlkIo.Media->MediaId += 1;\r | |
1135 | }\r | |
1136 | \r | |
1137 | if (UsbFloppyDevice->BlkIo.Media->BlockSize != OldMediaInfo.BlockSize) {\r | |
1138 | *MediaChange = TRUE;\r | |
1139 | UsbFloppyDevice->BlkIo.Media->MediaId += 1;\r | |
1140 | }\r | |
1141 | \r | |
1142 | if (UsbFloppyDevice->BlkIo.Media->LastBlock != OldMediaInfo.LastBlock) {\r | |
1143 | *MediaChange = TRUE;\r | |
1144 | UsbFloppyDevice->BlkIo.Media->MediaId += 1;\r | |
1145 | }\r | |
1146 | \r | |
1147 | if (UsbFloppyDevice->BlkIo.Media->MediaId != OldMediaInfo.MediaId) {\r | |
1148 | *MediaChange = TRUE;\r | |
1149 | }\r | |
1150 | \r | |
1151 | return EFI_SUCCESS;\r | |
1152 | }\r | |
1153 | \r | |
1154 | \r | |
1155 | \r | |
1156 | EFI_STATUS\r | |
1157 | UsbFloppyModeSense5APage5 (\r | |
1158 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
1159 | )\r | |
1160 | /*++\r | |
1161 | \r | |
1162 | Routine Description:\r | |
1163 | Retrieves media capacity information via sending Read Format \r | |
1164 | Capacity Packet Command.\r | |
1165 | \r | |
1166 | Arguments:\r | |
1167 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
1168 | \r | |
1169 | Returns: \r | |
1170 | EFI_DEVICE_ERROR - Hardware error\r | |
1171 | EFI_SUCCESS - Success\r | |
1172 | \r | |
1173 | --*/ \r | |
1174 | { \r | |
1175 | //\r | |
1176 | // status returned by Read Capacity Packet Command\r | |
1177 | //\r | |
1178 | EFI_STATUS Status;\r | |
1179 | ATAPI_PACKET_COMMAND Packet;\r | |
1180 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
1181 | UFI_MODE_PARAMETER_PAGE_5 ModePage5;\r | |
1182 | EFI_LBA LastBlock;\r | |
1183 | UINT32 SectorsPerTrack;\r | |
1184 | UINT32 NumberOfCylinders;\r | |
1185 | UINT32 NumberOfHeads;\r | |
1186 | UINT32 DataBytesPerSector;\r | |
1187 | \r | |
1188 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
1189 | \r | |
1190 | ZeroMem (&ModePage5, sizeof (UFI_MODE_PARAMETER_PAGE_5));\r | |
1191 | \r | |
1192 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1193 | Packet.ModeSenseUFI.opcode = UFI_MODE_SENSE5A;\r | |
1194 | //\r | |
1195 | // Flexible Disk Page\r | |
1196 | //\r | |
1197 | Packet.ModeSenseUFI.page_code = 5;\r | |
1198 | //\r | |
1199 | // current values\r | |
1200 | //\r | |
1201 | Packet.ModeSenseUFI.page_control = 0;\r | |
1202 | Packet.ModeSenseUFI.parameter_list_length_hi = 0;\r | |
1203 | Packet.ModeSenseUFI.parameter_list_length_lo = sizeof (UFI_MODE_PARAMETER_PAGE_5);\r | |
1204 | Status = USBFloppyPacketCommand (\r | |
1205 | UsbFloppyDevice,\r | |
1206 | &Packet,\r | |
1207 | sizeof (ATAPI_PACKET_COMMAND),\r | |
1208 | (VOID *) &ModePage5,\r | |
1209 | sizeof (UFI_MODE_PARAMETER_PAGE_5),\r | |
1210 | EfiUsbDataIn,\r | |
1211 | USBFLPTIMEOUT\r | |
1212 | );\r | |
1213 | \r | |
1214 | if (EFI_ERROR (Status)) {\r | |
1215 | return EFI_DEVICE_ERROR;\r | |
1216 | }\r | |
1217 | \r | |
1218 | NumberOfHeads = ModePage5.flex_disk_page.number_of_heads;\r | |
1219 | SectorsPerTrack = ModePage5.flex_disk_page.sectors_per_track;\r | |
1220 | NumberOfCylinders = ModePage5.flex_disk_page.number_of_cylinders_msb << 8 |\r | |
1221 | ModePage5.flex_disk_page.number_of_cylinders_lsb;\r | |
1222 | \r | |
1223 | LastBlock = SectorsPerTrack * NumberOfHeads * NumberOfCylinders;\r | |
1224 | DataBytesPerSector = ModePage5.flex_disk_page.databytes_per_sector_msb << 8 |\r | |
1225 | ModePage5.flex_disk_page.databytes_per_sector_lsb;\r | |
1226 | \r | |
1227 | UsbFloppyDevice->BlkIo.Media->LastBlock = LastBlock;\r | |
1228 | \r | |
1229 | UsbFloppyDevice->BlkIo.Media->LastBlock--;\r | |
1230 | \r | |
1231 | UsbFloppyDevice->BlkIo.Media->BlockSize = DataBytesPerSector;\r | |
1232 | \r | |
1233 | UsbFloppyDevice->BlkIo.Media->MediaPresent = TRUE;\r | |
1234 | \r | |
1235 | UsbFloppyDevice->BlkIo.Media->ReadOnly =\r | |
1236 | ModePage5.mode_param_header.write_protected;\r | |
1237 | \r | |
1238 | return EFI_SUCCESS;\r | |
1239 | \r | |
1240 | }\r | |
1241 | \r | |
1242 | EFI_STATUS\r | |
1243 | UsbFloppyModeSense5APage1C (\r | |
1244 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
1245 | )\r | |
1246 | /*++\r | |
1247 | \r | |
1248 | Routine Description:\r | |
1249 | Retrieves media capacity information via sending Read Format \r | |
1250 | Capacity Packet Command.\r | |
1251 | \r | |
1252 | Arguments:\r | |
1253 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
1254 | \r | |
1255 | Returns: \r | |
1256 | EFI_DEVICE_ERROR - Hardware error\r | |
1257 | EFI_SUCCESS - Success\r | |
1258 | \r | |
1259 | --*/ \r | |
1260 | { \r | |
1261 | //\r | |
1262 | // status returned by Read Capacity Packet Command\r | |
1263 | //\r | |
1264 | EFI_STATUS Status;\r | |
1265 | ATAPI_PACKET_COMMAND Packet;\r | |
1266 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
1267 | UFI_MODE_PARAMETER_PAGE_1C ModePage1C;\r | |
1268 | \r | |
1269 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
1270 | \r | |
1271 | ZeroMem (&ModePage1C, sizeof (UFI_MODE_PARAMETER_PAGE_1C));\r | |
1272 | \r | |
1273 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1274 | Packet.ModeSenseUFI.opcode = UFI_MODE_SENSE5A;\r | |
1275 | //\r | |
1276 | // Flexible Disk Page\r | |
1277 | //\r | |
1278 | Packet.ModeSenseUFI.page_code = 0x1C;\r | |
1279 | //\r | |
1280 | // current values\r | |
1281 | //\r | |
1282 | Packet.ModeSenseUFI.page_control = 0;\r | |
1283 | Packet.ModeSenseUFI.parameter_list_length_hi = 0;\r | |
1284 | Packet.ModeSenseUFI.parameter_list_length_lo = sizeof (UFI_MODE_PARAMETER_PAGE_1C);\r | |
1285 | Status = USBFloppyPacketCommand (\r | |
1286 | UsbFloppyDevice,\r | |
1287 | &Packet,\r | |
1288 | sizeof (ATAPI_PACKET_COMMAND),\r | |
1289 | (VOID *) &ModePage1C,\r | |
1290 | sizeof (UFI_MODE_PARAMETER_PAGE_1C),\r | |
1291 | EfiUsbDataIn,\r | |
1292 | USBFLPTIMEOUT\r | |
1293 | );\r | |
1294 | \r | |
1295 | if (EFI_ERROR (Status)) {\r | |
1296 | return EFI_DEVICE_ERROR;\r | |
1297 | }\r | |
1298 | \r | |
1299 | UsbFloppyDevice->BlkIo.Media->ReadOnly = ModePage1C.mode_param_header.write_protected;\r | |
1300 | \r | |
1301 | return EFI_SUCCESS;\r | |
1302 | \r | |
1303 | }\r | |
1304 | \r | |
1305 | EFI_STATUS\r | |
1306 | UsbMassStorageModeSense (\r | |
1307 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
1308 | )\r | |
1309 | {\r | |
1310 | if (UsbFloppyDevice->AtapiProtocol->CommandProtocol == EFI_USB_SUBCLASS_SCSI) {\r | |
1311 | return UsbSCSIModeSense1APage3F (UsbFloppyDevice);\r | |
1312 | } else {\r | |
1313 | return UsbFloppyModeSense5APage3F (UsbFloppyDevice);\r | |
1314 | }\r | |
1315 | }\r | |
1316 | \r | |
1317 | EFI_STATUS\r | |
1318 | UsbFloppyModeSense5APage3F (\r | |
1319 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
1320 | )\r | |
1321 | /*++\r | |
1322 | \r | |
1323 | Routine Description:\r | |
1324 | Retrieves mode sense information via sending Mode Sense\r | |
1325 | Packet Command.\r | |
1326 | \r | |
1327 | Arguments:\r | |
1328 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
1329 | \r | |
1330 | Returns: \r | |
1331 | EFI_DEVICE_ERROR - Hardware error\r | |
1332 | EFI_SUCCESS - Success\r | |
1333 | \r | |
1334 | --*/ \r | |
1335 | { \r | |
1336 | //\r | |
1337 | // status returned by Read Capacity Packet Command\r | |
1338 | //\r | |
1339 | EFI_STATUS Status;\r | |
1340 | ATAPI_PACKET_COMMAND Packet;\r | |
1341 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
1342 | UFI_MODE_PARAMETER_HEADER Header;\r | |
1343 | UINT32 Size;\r | |
1344 | \r | |
1345 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
1346 | \r | |
1347 | Size = sizeof (UFI_MODE_PARAMETER_HEADER);\r | |
1348 | \r | |
1349 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1350 | Packet.ModeSenseUFI.opcode = UFI_MODE_SENSE5A;\r | |
1351 | Packet.ModeSenseUFI.page_code = 0x3F;\r | |
1352 | Packet.ModeSenseUFI.page_control = 0;\r | |
1353 | Packet.ModeSenseUFI.parameter_list_length_hi = 0;\r | |
1354 | Packet.ModeSenseUFI.parameter_list_length_lo = (UINT8) Size;\r | |
1355 | Status = USBFloppyPacketCommand (\r | |
1356 | UsbFloppyDevice,\r | |
1357 | &Packet,\r | |
1358 | sizeof (ATAPI_PACKET_COMMAND),\r | |
1359 | &Header,\r | |
1360 | Size,\r | |
1361 | EfiUsbDataIn,\r | |
1362 | USBFLPTIMEOUT\r | |
1363 | );\r | |
1364 | \r | |
1365 | if (EFI_ERROR (Status)) {\r | |
1366 | return EFI_DEVICE_ERROR;\r | |
1367 | }\r | |
1368 | \r | |
1369 | UsbFloppyDevice->BlkIo.Media->ReadOnly = Header.write_protected;\r | |
1370 | \r | |
1371 | return EFI_SUCCESS;\r | |
1372 | \r | |
1373 | }\r | |
1374 | \r | |
1375 | EFI_STATUS\r | |
1376 | UsbSCSIModeSense1APage3F (\r | |
1377 | IN USB_FLOPPY_DEV *UsbFloppyDevice\r | |
1378 | )\r | |
1379 | /*++\r | |
1380 | \r | |
1381 | Routine Description:\r | |
1382 | Retrieves mode sense information via sending Mode Sense\r | |
1383 | Packet Command.\r | |
1384 | \r | |
1385 | Arguments:\r | |
1386 | UsbFloppyDevice - The USB_FLOPPY_DEV instance.\r | |
1387 | \r | |
1388 | Returns: \r | |
1389 | EFI_DEVICE_ERROR - Hardware error\r | |
1390 | EFI_SUCCESS - Success\r | |
1391 | \r | |
1392 | --*/ \r | |
1393 | { \r | |
1394 | //\r | |
1395 | // status returned by Read Capacity Packet Command\r | |
1396 | //\r | |
1397 | EFI_STATUS Status;\r | |
1398 | ATAPI_PACKET_COMMAND Packet;\r | |
1399 | EFI_USB_ATAPI_PROTOCOL *UsbAtapiInterface;\r | |
1400 | SCSI_MODE_PARAMETER_HEADER6 Header;\r | |
1401 | UINT32 Size;\r | |
1402 | \r | |
1403 | UsbAtapiInterface = UsbFloppyDevice->AtapiProtocol;\r | |
1404 | \r | |
1405 | Size = sizeof (SCSI_MODE_PARAMETER_HEADER6);\r | |
1406 | \r | |
1407 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1408 | Packet.ModeSenseSCSI.opcode = SCSI_MODE_SENSE1A;\r | |
1409 | Packet.ModeSenseSCSI.page_code = 0x3F;\r | |
1410 | Packet.ModeSenseSCSI.page_control = 0;\r | |
1411 | Packet.ModeSenseSCSI.allocation_length = (UINT8) Size;\r | |
1412 | Status = USBFloppyPacketCommand (\r | |
1413 | UsbFloppyDevice,\r | |
1414 | &Packet,\r | |
1415 | sizeof (MODE_SENSE_CMD_SCSI),\r | |
1416 | &Header,\r | |
1417 | Size,\r | |
1418 | EfiUsbDataIn,\r | |
1419 | USBFLPTIMEOUT\r | |
1420 | );\r | |
1421 | \r | |
1422 | if (EFI_ERROR (Status)) {\r | |
1423 | return EFI_DEVICE_ERROR;\r | |
1424 | }\r | |
1425 | \r | |
1426 | UsbFloppyDevice->BlkIo.Media->ReadOnly = Header.write_protected;\r | |
1427 | return EFI_SUCCESS;\r | |
1428 | \r | |
1429 | }\r | |
1430 | \r | |
1431 | /*++\r | |
1432 | \r | |
1433 | The following functions are a set of helper functions,\r | |
1434 | which are used to parse sense key returned by the device.\r | |
1435 | \r | |
1436 | --*/\r | |
1437 | BOOLEAN\r | |
1438 | IsNoMedia (\r | |
1439 | IN REQUEST_SENSE_DATA *SenseData,\r | |
1440 | IN UINTN SenseCounts\r | |
1441 | )\r | |
1442 | {\r | |
1443 | REQUEST_SENSE_DATA *SensePtr;\r | |
1444 | UINTN Index;\r | |
1445 | BOOLEAN NoMedia;\r | |
1446 | \r | |
1447 | NoMedia = FALSE;\r | |
1448 | \r | |
1449 | SensePtr = SenseData;\r | |
1450 | \r | |
1451 | for (Index = 0; Index < SenseCounts; Index++) {\r | |
1452 | \r | |
1453 | if ((SensePtr->sense_key == SK_NOT_READY) && \r | |
1454 | (SensePtr->addnl_sense_code == ASC_NO_MEDIA)) {\r | |
1455 | \r | |
1456 | NoMedia = TRUE;\r | |
1457 | }\r | |
1458 | \r | |
1459 | SensePtr++;\r | |
1460 | }\r | |
1461 | \r | |
1462 | return NoMedia;\r | |
1463 | }\r | |
1464 | \r | |
1465 | \r | |
1466 | BOOLEAN\r | |
1467 | IsMediaError (\r | |
1468 | IN REQUEST_SENSE_DATA *SenseData,\r | |
1469 | IN UINTN SenseCounts\r | |
1470 | )\r | |
1471 | {\r | |
1472 | REQUEST_SENSE_DATA *SensePtr;\r | |
1473 | UINTN Index;\r | |
1474 | BOOLEAN IsError;\r | |
1475 | \r | |
1476 | IsError = FALSE;\r | |
1477 | SensePtr = SenseData;\r | |
1478 | \r | |
1479 | for (Index = 0; Index < SenseCounts; Index++) {\r | |
1480 | \r | |
1481 | switch (SensePtr->sense_key) {\r | |
1482 | \r | |
1483 | //\r | |
1484 | // Medium error case\r | |
1485 | //\r | |
1486 | case SK_MEDIUM_ERROR:\r | |
1487 | switch (SensePtr->addnl_sense_code) {\r | |
1488 | \r | |
1489 | case ASC_MEDIA_ERR1:\r | |
1490 | case ASC_MEDIA_ERR2:\r | |
1491 | case ASC_MEDIA_ERR3:\r | |
1492 | case ASC_MEDIA_ERR4:\r | |
1493 | IsError = TRUE;\r | |
1494 | break;\r | |
1495 | \r | |
1496 | default:\r | |
1497 | break;\r | |
1498 | }\r | |
1499 | \r | |
1500 | break;\r | |
1501 | \r | |
1502 | //\r | |
1503 | // Medium upside-down case\r | |
1504 | //\r | |
1505 | case SK_NOT_READY:\r | |
1506 | switch (SensePtr->addnl_sense_code) {\r | |
1507 | case ASC_MEDIA_UPSIDE_DOWN:\r | |
1508 | IsError = TRUE;\r | |
1509 | break;\r | |
1510 | \r | |
1511 | default:\r | |
1512 | break;\r | |
1513 | }\r | |
1514 | break;\r | |
1515 | \r | |
1516 | default:\r | |
1517 | break;\r | |
1518 | }\r | |
1519 | \r | |
1520 | SensePtr++;\r | |
1521 | }\r | |
1522 | \r | |
1523 | return IsError;\r | |
1524 | }\r | |
1525 | \r | |
1526 | BOOLEAN\r | |
1527 | IsMediaChange (\r | |
1528 | IN REQUEST_SENSE_DATA *SenseData,\r | |
1529 | IN UINTN SenseCounts\r | |
1530 | )\r | |
1531 | {\r | |
1532 | REQUEST_SENSE_DATA *SensePtr;\r | |
1533 | UINTN Index;\r | |
1534 | BOOLEAN MediaChanged;\r | |
1535 | \r | |
1536 | MediaChanged = FALSE;\r | |
1537 | SensePtr = SenseData;\r | |
1538 | \r | |
1539 | for (Index = 0; Index < SenseCounts; Index++) {\r | |
1540 | \r | |
1541 | if ((SensePtr->sense_key == SK_UNIT_ATTENTION) &&\r | |
1542 | (SensePtr->addnl_sense_code == ASC_MEDIA_CHANGE)) {\r | |
1543 | \r | |
1544 | MediaChanged = TRUE;\r | |
1545 | }\r | |
1546 | \r | |
1547 | SensePtr++;\r | |
1548 | }\r | |
1549 | \r | |
1550 | return MediaChanged;\r | |
1551 | }\r | |
1552 | \r | |
1553 | BOOLEAN\r | |
1554 | IsDriveReady (\r | |
1555 | IN REQUEST_SENSE_DATA *SenseData,\r | |
1556 | IN UINTN SenseCounts,\r | |
1557 | OUT BOOLEAN *NeedRetry\r | |
1558 | )\r | |
1559 | {\r | |
1560 | REQUEST_SENSE_DATA *SensePtr;\r | |
1561 | UINTN Index;\r | |
1562 | BOOLEAN IsReady;\r | |
1563 | \r | |
1564 | IsReady = TRUE;\r | |
1565 | *NeedRetry = FALSE;\r | |
1566 | SensePtr = SenseData;\r | |
1567 | \r | |
1568 | for (Index = 0; Index < SenseCounts; Index++) {\r | |
1569 | \r | |
1570 | if ((SensePtr->sense_key == SK_NOT_READY) &&\r | |
1571 | (SensePtr->addnl_sense_code == ASC_NOT_READY)) {\r | |
1572 | \r | |
1573 | switch (SensePtr->addnl_sense_code_qualifier) {\r | |
1574 | \r | |
1575 | case ASCQ_IN_PROGRESS:\r | |
1576 | case ASCQ_DEVICE_BUSY:\r | |
1577 | IsReady = FALSE;\r | |
1578 | *NeedRetry = TRUE;\r | |
1579 | break;\r | |
1580 | \r | |
1581 | default:\r | |
1582 | //\r | |
1583 | // Drive is in error condition,\r | |
1584 | // no need to retry.\r | |
1585 | //\r | |
1586 | IsReady = FALSE;\r | |
1587 | *NeedRetry = FALSE;\r | |
1588 | break;\r | |
1589 | }\r | |
1590 | }\r | |
1591 | \r | |
1592 | SensePtr++;\r | |
1593 | }\r | |
1594 | \r | |
1595 | return IsReady;\r | |
1596 | }\r | |
1597 | \r | |
1598 | BOOLEAN\r | |
1599 | IsMediaWriteProtected (\r | |
1600 | IN REQUEST_SENSE_DATA *SenseData,\r | |
1601 | IN UINTN SenseCounts\r | |
1602 | )\r | |
1603 | {\r | |
1604 | REQUEST_SENSE_DATA *SensePtr;\r | |
1605 | UINTN Index;\r | |
1606 | BOOLEAN IsWriteProtected;\r | |
1607 | \r | |
1608 | IsWriteProtected = FALSE;\r | |
1609 | SensePtr = SenseData;\r | |
1610 | \r | |
1611 | for (Index = 0; Index < SenseCounts; Index++) {\r | |
1612 | //\r | |
1613 | // catch media write-protected condition.\r | |
1614 | //\r | |
1615 | if ((SensePtr->sense_key == SK_DATA_PROTECT) &&\r | |
1616 | (SensePtr->addnl_sense_code == ASC_WRITE_PROTECTED)) {\r | |
1617 | \r | |
1618 | IsWriteProtected = TRUE;\r | |
1619 | }\r | |
1620 | \r | |
1621 | SensePtr++;\r | |
1622 | }\r | |
1623 | \r | |
1624 | return IsWriteProtected;\r | |
1625 | }\r | |
1626 | \r | |
1627 | BOOLEAN\r | |
1628 | IsLogicalUnitCommunicationOverRun (\r | |
1629 | IN REQUEST_SENSE_DATA *SenseData,\r | |
1630 | IN UINTN SenseCounts\r | |
1631 | )\r | |
1632 | {\r | |
1633 | REQUEST_SENSE_DATA *SensePtr;\r | |
1634 | UINTN Index;\r | |
1635 | BOOLEAN IsOverRun;\r | |
1636 | \r | |
1637 | IsOverRun = FALSE;\r | |
1638 | SensePtr = SenseData;\r | |
1639 | \r | |
1640 | for (Index = 0; Index < SenseCounts; Index++) {\r | |
1641 | \r | |
1642 | if ((SensePtr->sense_key == SK_NOT_READY) &&\r | |
1643 | (SensePtr->addnl_sense_code == ASC_LOGICAL_UNIT_STATUS) &&\r | |
1644 | (SensePtr->addnl_sense_code_qualifier == ASCQ_LOGICAL_UNIT_OVERRUN)) {\r | |
1645 | IsOverRun = TRUE;\r | |
1646 | }\r | |
1647 | \r | |
1648 | SensePtr++;\r | |
1649 | }\r | |
1650 | \r | |
1651 | return IsOverRun;\r | |
1652 | }\r |