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1da177e4 LT |
1 | /* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC |
2 | * | |
3 | * $Id: isd200.c,v 1.16 2002/04/22 03:39:43 mdharm Exp $ | |
4 | * | |
5 | * Current development and maintenance: | |
96de0e25 | 6 | * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se) |
1da177e4 LT |
7 | * |
8 | * Developed with the assistance of: | |
9 | * (C) 2002 Alan Stern <stern@rowland.org> | |
10 | * | |
11 | * Initial work: | |
12 | * (C) 2000 In-System Design, Inc. (support@in-system.com) | |
13 | * | |
14 | * The ISD200 ASIC does not natively support ATA devices. The chip | |
15 | * does implement an interface, the ATA Command Block (ATACB) which provides | |
16 | * a means of passing ATA commands and ATA register accesses to a device. | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify it | |
19 | * under the terms of the GNU General Public License as published by the | |
20 | * Free Software Foundation; either version 2, or (at your option) any | |
21 | * later version. | |
22 | * | |
23 | * This program is distributed in the hope that it will be useful, but | |
24 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 | * General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License along | |
29 | * with this program; if not, write to the Free Software Foundation, Inc., | |
30 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
31 | * | |
32 | * History: | |
33 | * | |
34 | * 2002-10-19: Removed the specialized transfer routines. | |
35 | * (Alan Stern <stern@rowland.harvard.edu>) | |
36 | * 2001-02-24: Removed lots of duplicate code and simplified the structure. | |
37 | * (bjorn@haxx.se) | |
38 | * 2002-01-16: Fixed endianness bug so it works on the ppc arch. | |
39 | * (Luc Saillard <luc@saillard.org>) | |
40 | * 2002-01-17: All bitfields removed. | |
41 | * (bjorn@haxx.se) | |
42 | */ | |
43 | ||
44 | ||
45 | /* Include files */ | |
46 | ||
47 | #include <linux/jiffies.h> | |
48 | #include <linux/errno.h> | |
49 | #include <linux/slab.h> | |
50 | #include <linux/hdreg.h> | |
51 | #include <linux/ide.h> | |
52 | ||
53 | #include <scsi/scsi.h> | |
54 | #include <scsi/scsi_cmnd.h> | |
55 | #include <scsi/scsi_device.h> | |
56 | ||
57 | #include "usb.h" | |
58 | #include "transport.h" | |
59 | #include "protocol.h" | |
60 | #include "debug.h" | |
61 | #include "scsiglue.h" | |
62 | #include "isd200.h" | |
63 | ||
64 | ||
65 | /* Timeout defines (in Seconds) */ | |
66 | ||
67 | #define ISD200_ENUM_BSY_TIMEOUT 35 | |
68 | #define ISD200_ENUM_DETECT_TIMEOUT 30 | |
69 | #define ISD200_DEFAULT_TIMEOUT 30 | |
70 | ||
71 | /* device flags */ | |
72 | #define DF_ATA_DEVICE 0x0001 | |
73 | #define DF_MEDIA_STATUS_ENABLED 0x0002 | |
74 | #define DF_REMOVABLE_MEDIA 0x0004 | |
75 | ||
76 | /* capability bit definitions */ | |
77 | #define CAPABILITY_DMA 0x01 | |
78 | #define CAPABILITY_LBA 0x02 | |
79 | ||
80 | /* command_setX bit definitions */ | |
81 | #define COMMANDSET_REMOVABLE 0x02 | |
82 | #define COMMANDSET_MEDIA_STATUS 0x10 | |
83 | ||
84 | /* ATA Vendor Specific defines */ | |
85 | #define ATA_ADDRESS_DEVHEAD_STD 0xa0 | |
86 | #define ATA_ADDRESS_DEVHEAD_LBA_MODE 0x40 | |
87 | #define ATA_ADDRESS_DEVHEAD_SLAVE 0x10 | |
88 | ||
89 | /* Action Select bits */ | |
90 | #define ACTION_SELECT_0 0x01 | |
91 | #define ACTION_SELECT_1 0x02 | |
92 | #define ACTION_SELECT_2 0x04 | |
93 | #define ACTION_SELECT_3 0x08 | |
94 | #define ACTION_SELECT_4 0x10 | |
95 | #define ACTION_SELECT_5 0x20 | |
96 | #define ACTION_SELECT_6 0x40 | |
97 | #define ACTION_SELECT_7 0x80 | |
98 | ||
99 | /* Register Select bits */ | |
100 | #define REG_ALTERNATE_STATUS 0x01 | |
101 | #define REG_DEVICE_CONTROL 0x01 | |
102 | #define REG_ERROR 0x02 | |
103 | #define REG_FEATURES 0x02 | |
104 | #define REG_SECTOR_COUNT 0x04 | |
105 | #define REG_SECTOR_NUMBER 0x08 | |
106 | #define REG_CYLINDER_LOW 0x10 | |
107 | #define REG_CYLINDER_HIGH 0x20 | |
108 | #define REG_DEVICE_HEAD 0x40 | |
109 | #define REG_STATUS 0x80 | |
110 | #define REG_COMMAND 0x80 | |
111 | ||
112 | /* ATA error definitions not in <linux/hdreg.h> */ | |
113 | #define ATA_ERROR_MEDIA_CHANGE 0x20 | |
114 | ||
115 | /* ATA command definitions not in <linux/hdreg.h> */ | |
116 | #define ATA_COMMAND_GET_MEDIA_STATUS 0xDA | |
117 | #define ATA_COMMAND_MEDIA_EJECT 0xED | |
118 | ||
119 | /* ATA drive control definitions */ | |
120 | #define ATA_DC_DISABLE_INTERRUPTS 0x02 | |
121 | #define ATA_DC_RESET_CONTROLLER 0x04 | |
122 | #define ATA_DC_REENABLE_CONTROLLER 0x00 | |
123 | ||
124 | /* | |
125 | * General purpose return codes | |
126 | */ | |
127 | ||
128 | #define ISD200_ERROR -1 | |
129 | #define ISD200_GOOD 0 | |
130 | ||
131 | /* | |
132 | * Transport return codes | |
133 | */ | |
134 | ||
135 | #define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */ | |
136 | #define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */ | |
137 | #define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */ | |
138 | ||
139 | /* driver action codes */ | |
140 | #define ACTION_READ_STATUS 0 | |
141 | #define ACTION_RESET 1 | |
142 | #define ACTION_REENABLE 2 | |
143 | #define ACTION_SOFT_RESET 3 | |
144 | #define ACTION_ENUM 4 | |
145 | #define ACTION_IDENTIFY 5 | |
146 | ||
147 | ||
148 | /* | |
149 | * ata_cdb struct | |
150 | */ | |
151 | ||
152 | ||
153 | union ata_cdb { | |
154 | struct { | |
155 | unsigned char SignatureByte0; | |
156 | unsigned char SignatureByte1; | |
157 | unsigned char ActionSelect; | |
158 | unsigned char RegisterSelect; | |
159 | unsigned char TransferBlockSize; | |
160 | unsigned char WriteData3F6; | |
161 | unsigned char WriteData1F1; | |
162 | unsigned char WriteData1F2; | |
163 | unsigned char WriteData1F3; | |
164 | unsigned char WriteData1F4; | |
165 | unsigned char WriteData1F5; | |
166 | unsigned char WriteData1F6; | |
167 | unsigned char WriteData1F7; | |
168 | unsigned char Reserved[3]; | |
169 | } generic; | |
170 | ||
171 | struct { | |
172 | unsigned char SignatureByte0; | |
173 | unsigned char SignatureByte1; | |
174 | unsigned char ActionSelect; | |
175 | unsigned char RegisterSelect; | |
176 | unsigned char TransferBlockSize; | |
177 | unsigned char AlternateStatusByte; | |
178 | unsigned char ErrorByte; | |
179 | unsigned char SectorCountByte; | |
180 | unsigned char SectorNumberByte; | |
181 | unsigned char CylinderLowByte; | |
182 | unsigned char CylinderHighByte; | |
183 | unsigned char DeviceHeadByte; | |
184 | unsigned char StatusByte; | |
185 | unsigned char Reserved[3]; | |
186 | } read; | |
187 | ||
188 | struct { | |
189 | unsigned char SignatureByte0; | |
190 | unsigned char SignatureByte1; | |
191 | unsigned char ActionSelect; | |
192 | unsigned char RegisterSelect; | |
193 | unsigned char TransferBlockSize; | |
194 | unsigned char DeviceControlByte; | |
195 | unsigned char FeaturesByte; | |
196 | unsigned char SectorCountByte; | |
197 | unsigned char SectorNumberByte; | |
198 | unsigned char CylinderLowByte; | |
199 | unsigned char CylinderHighByte; | |
200 | unsigned char DeviceHeadByte; | |
201 | unsigned char CommandByte; | |
202 | unsigned char Reserved[3]; | |
203 | } write; | |
204 | }; | |
205 | ||
206 | ||
207 | /* | |
208 | * Inquiry data structure. This is the data returned from the target | |
209 | * after it receives an inquiry. | |
210 | * | |
211 | * This structure may be extended by the number of bytes specified | |
212 | * in the field AdditionalLength. The defined size constant only | |
213 | * includes fields through ProductRevisionLevel. | |
214 | */ | |
215 | ||
216 | /* | |
217 | * DeviceType field | |
218 | */ | |
219 | #define DIRECT_ACCESS_DEVICE 0x00 /* disks */ | |
220 | #define DEVICE_REMOVABLE 0x80 | |
221 | ||
222 | struct inquiry_data { | |
223 | unsigned char DeviceType; | |
224 | unsigned char DeviceTypeModifier; | |
225 | unsigned char Versions; | |
226 | unsigned char Format; | |
227 | unsigned char AdditionalLength; | |
228 | unsigned char Reserved[2]; | |
229 | unsigned char Capability; | |
230 | unsigned char VendorId[8]; | |
231 | unsigned char ProductId[16]; | |
232 | unsigned char ProductRevisionLevel[4]; | |
233 | unsigned char VendorSpecific[20]; | |
234 | unsigned char Reserved3[40]; | |
235 | } __attribute__ ((packed)); | |
236 | ||
237 | /* | |
238 | * INQUIRY data buffer size | |
239 | */ | |
240 | ||
241 | #define INQUIRYDATABUFFERSIZE 36 | |
242 | ||
243 | ||
244 | /* | |
245 | * ISD200 CONFIG data struct | |
246 | */ | |
247 | ||
248 | #define ATACFG_TIMING 0x0f | |
249 | #define ATACFG_ATAPI_RESET 0x10 | |
250 | #define ATACFG_MASTER 0x20 | |
251 | #define ATACFG_BLOCKSIZE 0xa0 | |
252 | ||
253 | #define ATACFGE_LAST_LUN 0x07 | |
254 | #define ATACFGE_DESC_OVERRIDE 0x08 | |
255 | #define ATACFGE_STATE_SUSPEND 0x10 | |
256 | #define ATACFGE_SKIP_BOOT 0x20 | |
257 | #define ATACFGE_CONF_DESC2 0x40 | |
258 | #define ATACFGE_INIT_STATUS 0x80 | |
259 | ||
260 | #define CFG_CAPABILITY_SRST 0x01 | |
261 | ||
262 | struct isd200_config { | |
263 | unsigned char EventNotification; | |
264 | unsigned char ExternalClock; | |
265 | unsigned char ATAInitTimeout; | |
266 | unsigned char ATAConfig; | |
267 | unsigned char ATAMajorCommand; | |
268 | unsigned char ATAMinorCommand; | |
269 | unsigned char ATAExtraConfig; | |
270 | unsigned char Capability; | |
271 | }__attribute__ ((packed)); | |
272 | ||
273 | ||
274 | /* | |
275 | * ISD200 driver information struct | |
276 | */ | |
277 | ||
278 | struct isd200_info { | |
279 | struct inquiry_data InquiryData; | |
280 | struct hd_driveid *id; | |
281 | struct isd200_config ConfigData; | |
282 | unsigned char *RegsBuf; | |
283 | unsigned char ATARegs[8]; | |
284 | unsigned char DeviceHead; | |
285 | unsigned char DeviceFlags; | |
286 | ||
287 | /* maximum number of LUNs supported */ | |
288 | unsigned char MaxLUNs; | |
289 | struct scsi_cmnd srb; | |
290 | }; | |
291 | ||
292 | ||
293 | /* | |
294 | * Read Capacity Data - returned in Big Endian format | |
295 | */ | |
296 | ||
297 | struct read_capacity_data { | |
298 | __be32 LogicalBlockAddress; | |
299 | __be32 BytesPerBlock; | |
300 | }; | |
301 | ||
302 | /* | |
303 | * Read Block Limits Data - returned in Big Endian format | |
304 | * This structure returns the maximum and minimum block | |
305 | * size for a TAPE device. | |
306 | */ | |
307 | ||
308 | struct read_block_limits { | |
309 | unsigned char Reserved; | |
310 | unsigned char BlockMaximumSize[3]; | |
311 | unsigned char BlockMinimumSize[2]; | |
312 | }; | |
313 | ||
314 | ||
315 | /* | |
316 | * Sense Data Format | |
317 | */ | |
318 | ||
319 | #define SENSE_ERRCODE 0x7f | |
320 | #define SENSE_ERRCODE_VALID 0x80 | |
321 | #define SENSE_FLAG_SENSE_KEY 0x0f | |
322 | #define SENSE_FLAG_BAD_LENGTH 0x20 | |
323 | #define SENSE_FLAG_END_OF_MEDIA 0x40 | |
324 | #define SENSE_FLAG_FILE_MARK 0x80 | |
325 | struct sense_data { | |
326 | unsigned char ErrorCode; | |
327 | unsigned char SegmentNumber; | |
328 | unsigned char Flags; | |
329 | unsigned char Information[4]; | |
330 | unsigned char AdditionalSenseLength; | |
331 | unsigned char CommandSpecificInformation[4]; | |
332 | unsigned char AdditionalSenseCode; | |
333 | unsigned char AdditionalSenseCodeQualifier; | |
334 | unsigned char FieldReplaceableUnitCode; | |
335 | unsigned char SenseKeySpecific[3]; | |
336 | } __attribute__ ((packed)); | |
337 | ||
338 | /* | |
339 | * Default request sense buffer size | |
340 | */ | |
341 | ||
342 | #define SENSE_BUFFER_SIZE 18 | |
343 | ||
344 | /*********************************************************************** | |
345 | * Helper routines | |
346 | ***********************************************************************/ | |
347 | ||
348 | /************************************************************************** | |
349 | * isd200_build_sense | |
350 | * | |
351 | * Builds an artificial sense buffer to report the results of a | |
352 | * failed command. | |
353 | * | |
354 | * RETURNS: | |
355 | * void | |
356 | */ | |
357 | static void isd200_build_sense(struct us_data *us, struct scsi_cmnd *srb) | |
358 | { | |
359 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
360 | struct sense_data *buf = (struct sense_data *) &srb->sense_buffer[0]; | |
361 | unsigned char error = info->ATARegs[IDE_ERROR_OFFSET]; | |
362 | ||
363 | if(error & ATA_ERROR_MEDIA_CHANGE) { | |
364 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
365 | buf->AdditionalSenseLength = 0xb; | |
366 | buf->Flags = UNIT_ATTENTION; | |
367 | buf->AdditionalSenseCode = 0; | |
368 | buf->AdditionalSenseCodeQualifier = 0; | |
369 | } else if(error & MCR_ERR) { | |
370 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
371 | buf->AdditionalSenseLength = 0xb; | |
372 | buf->Flags = UNIT_ATTENTION; | |
373 | buf->AdditionalSenseCode = 0; | |
374 | buf->AdditionalSenseCodeQualifier = 0; | |
375 | } else if(error & TRK0_ERR) { | |
376 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
377 | buf->AdditionalSenseLength = 0xb; | |
378 | buf->Flags = NOT_READY; | |
379 | buf->AdditionalSenseCode = 0; | |
380 | buf->AdditionalSenseCodeQualifier = 0; | |
381 | } else if(error & ECC_ERR) { | |
382 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
383 | buf->AdditionalSenseLength = 0xb; | |
384 | buf->Flags = DATA_PROTECT; | |
385 | buf->AdditionalSenseCode = 0; | |
386 | buf->AdditionalSenseCodeQualifier = 0; | |
387 | } else { | |
388 | buf->ErrorCode = 0; | |
389 | buf->AdditionalSenseLength = 0; | |
390 | buf->Flags = 0; | |
391 | buf->AdditionalSenseCode = 0; | |
392 | buf->AdditionalSenseCodeQualifier = 0; | |
393 | } | |
394 | } | |
395 | ||
396 | ||
397 | /*********************************************************************** | |
398 | * Transport routines | |
399 | ***********************************************************************/ | |
400 | ||
401 | ||
402 | /************************************************************************** | |
403 | * isd200_action | |
404 | * | |
405 | * Routine for sending commands to the isd200 | |
406 | * | |
407 | * RETURNS: | |
408 | * ISD status code | |
409 | */ | |
410 | static int isd200_action( struct us_data *us, int action, | |
411 | void* pointer, int value ) | |
412 | { | |
413 | union ata_cdb ata; | |
414 | struct scsi_device srb_dev; | |
415 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
416 | struct scsi_cmnd *srb = &info->srb; | |
417 | int status; | |
418 | ||
419 | memset(&ata, 0, sizeof(ata)); | |
420 | memset(&srb_dev, 0, sizeof(srb_dev)); | |
421 | srb->device = &srb_dev; | |
422 | ++srb->serial_number; | |
423 | ||
424 | ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
425 | ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
426 | ata.generic.TransferBlockSize = 1; | |
427 | ||
428 | switch ( action ) { | |
429 | case ACTION_READ_STATUS: | |
430 | US_DEBUGP(" isd200_action(READ_STATUS)\n"); | |
431 | ata.generic.ActionSelect = ACTION_SELECT_0|ACTION_SELECT_2; | |
432 | ata.generic.RegisterSelect = | |
433 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
434 | REG_STATUS | REG_ERROR; | |
435 | srb->sc_data_direction = DMA_FROM_DEVICE; | |
436 | srb->request_buffer = pointer; | |
437 | srb->request_bufflen = value; | |
438 | break; | |
439 | ||
440 | case ACTION_ENUM: | |
441 | US_DEBUGP(" isd200_action(ENUM,0x%02x)\n",value); | |
442 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
443 | ACTION_SELECT_3|ACTION_SELECT_4| | |
444 | ACTION_SELECT_5; | |
445 | ata.generic.RegisterSelect = REG_DEVICE_HEAD; | |
446 | ata.write.DeviceHeadByte = value; | |
447 | srb->sc_data_direction = DMA_NONE; | |
448 | break; | |
449 | ||
450 | case ACTION_RESET: | |
451 | US_DEBUGP(" isd200_action(RESET)\n"); | |
452 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
453 | ACTION_SELECT_3|ACTION_SELECT_4; | |
454 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; | |
455 | ata.write.DeviceControlByte = ATA_DC_RESET_CONTROLLER; | |
456 | srb->sc_data_direction = DMA_NONE; | |
457 | break; | |
458 | ||
459 | case ACTION_REENABLE: | |
460 | US_DEBUGP(" isd200_action(REENABLE)\n"); | |
461 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
462 | ACTION_SELECT_3|ACTION_SELECT_4; | |
463 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; | |
464 | ata.write.DeviceControlByte = ATA_DC_REENABLE_CONTROLLER; | |
465 | srb->sc_data_direction = DMA_NONE; | |
466 | break; | |
467 | ||
468 | case ACTION_SOFT_RESET: | |
469 | US_DEBUGP(" isd200_action(SOFT_RESET)\n"); | |
470 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_5; | |
471 | ata.generic.RegisterSelect = REG_DEVICE_HEAD | REG_COMMAND; | |
472 | ata.write.DeviceHeadByte = info->DeviceHead; | |
473 | ata.write.CommandByte = WIN_SRST; | |
474 | srb->sc_data_direction = DMA_NONE; | |
475 | break; | |
476 | ||
477 | case ACTION_IDENTIFY: | |
478 | US_DEBUGP(" isd200_action(IDENTIFY)\n"); | |
479 | ata.generic.RegisterSelect = REG_COMMAND; | |
480 | ata.write.CommandByte = WIN_IDENTIFY; | |
481 | srb->sc_data_direction = DMA_FROM_DEVICE; | |
482 | srb->request_buffer = (void *) info->id; | |
483 | srb->request_bufflen = sizeof(struct hd_driveid); | |
484 | break; | |
485 | ||
486 | default: | |
487 | US_DEBUGP("Error: Undefined action %d\n",action); | |
488 | break; | |
489 | } | |
490 | ||
491 | memcpy(srb->cmnd, &ata, sizeof(ata.generic)); | |
492 | srb->cmd_len = sizeof(ata.generic); | |
493 | status = usb_stor_Bulk_transport(srb, us); | |
494 | if (status == USB_STOR_TRANSPORT_GOOD) | |
495 | status = ISD200_GOOD; | |
496 | else { | |
497 | US_DEBUGP(" isd200_action(0x%02x) error: %d\n",action,status); | |
498 | status = ISD200_ERROR; | |
499 | /* need to reset device here */ | |
500 | } | |
501 | ||
502 | return status; | |
503 | } | |
504 | ||
505 | /************************************************************************** | |
506 | * isd200_read_regs | |
507 | * | |
508 | * Read ATA Registers | |
509 | * | |
510 | * RETURNS: | |
511 | * ISD status code | |
512 | */ | |
513 | static int isd200_read_regs( struct us_data *us ) | |
514 | { | |
515 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
516 | int retStatus = ISD200_GOOD; | |
517 | int transferStatus; | |
518 | ||
519 | US_DEBUGP("Entering isd200_IssueATAReadRegs\n"); | |
520 | ||
521 | transferStatus = isd200_action( us, ACTION_READ_STATUS, | |
522 | info->RegsBuf, sizeof(info->ATARegs) ); | |
523 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
524 | US_DEBUGP(" Error reading ATA registers\n"); | |
525 | retStatus = ISD200_ERROR; | |
526 | } else { | |
527 | memcpy(info->ATARegs, info->RegsBuf, sizeof(info->ATARegs)); | |
528 | US_DEBUGP(" Got ATA Register[IDE_ERROR_OFFSET] = 0x%x\n", | |
529 | info->ATARegs[IDE_ERROR_OFFSET]); | |
530 | } | |
531 | ||
532 | return retStatus; | |
533 | } | |
534 | ||
535 | ||
536 | /************************************************************************** | |
537 | * Invoke the transport and basic error-handling/recovery methods | |
538 | * | |
539 | * This is used by the protocol layers to actually send the message to | |
540 | * the device and receive the response. | |
541 | */ | |
542 | static void isd200_invoke_transport( struct us_data *us, | |
543 | struct scsi_cmnd *srb, | |
544 | union ata_cdb *ataCdb ) | |
545 | { | |
546 | int need_auto_sense = 0; | |
547 | int transferStatus; | |
548 | int result; | |
549 | ||
550 | /* send the command to the transport layer */ | |
551 | memcpy(srb->cmnd, ataCdb, sizeof(ataCdb->generic)); | |
552 | srb->cmd_len = sizeof(ataCdb->generic); | |
553 | transferStatus = usb_stor_Bulk_transport(srb, us); | |
554 | ||
555 | /* if the command gets aborted by the higher layers, we need to | |
556 | * short-circuit all other processing | |
557 | */ | |
558 | if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { | |
559 | US_DEBUGP("-- command was aborted\n"); | |
560 | goto Handle_Abort; | |
561 | } | |
562 | ||
563 | switch (transferStatus) { | |
564 | ||
565 | case USB_STOR_TRANSPORT_GOOD: | |
566 | /* Indicate a good result */ | |
567 | srb->result = SAM_STAT_GOOD; | |
568 | break; | |
569 | ||
570 | case USB_STOR_TRANSPORT_NO_SENSE: | |
571 | US_DEBUGP("-- transport indicates protocol failure\n"); | |
572 | srb->result = SAM_STAT_CHECK_CONDITION; | |
573 | return; | |
574 | ||
575 | case USB_STOR_TRANSPORT_FAILED: | |
576 | US_DEBUGP("-- transport indicates command failure\n"); | |
577 | need_auto_sense = 1; | |
578 | break; | |
579 | ||
580 | case USB_STOR_TRANSPORT_ERROR: | |
581 | US_DEBUGP("-- transport indicates transport error\n"); | |
582 | srb->result = DID_ERROR << 16; | |
583 | /* Need reset here */ | |
584 | return; | |
585 | ||
586 | default: | |
587 | US_DEBUGP("-- transport indicates unknown error\n"); | |
588 | srb->result = DID_ERROR << 16; | |
589 | /* Need reset here */ | |
590 | return; | |
591 | } | |
592 | ||
593 | if ((srb->resid > 0) && | |
594 | !((srb->cmnd[0] == REQUEST_SENSE) || | |
595 | (srb->cmnd[0] == INQUIRY) || | |
596 | (srb->cmnd[0] == MODE_SENSE) || | |
597 | (srb->cmnd[0] == LOG_SENSE) || | |
598 | (srb->cmnd[0] == MODE_SENSE_10))) { | |
599 | US_DEBUGP("-- unexpectedly short transfer\n"); | |
600 | need_auto_sense = 1; | |
601 | } | |
602 | ||
603 | if (need_auto_sense) { | |
604 | result = isd200_read_regs(us); | |
605 | if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { | |
606 | US_DEBUGP("-- auto-sense aborted\n"); | |
607 | goto Handle_Abort; | |
608 | } | |
609 | if (result == ISD200_GOOD) { | |
610 | isd200_build_sense(us, srb); | |
611 | srb->result = SAM_STAT_CHECK_CONDITION; | |
612 | ||
613 | /* If things are really okay, then let's show that */ | |
614 | if ((srb->sense_buffer[2] & 0xf) == 0x0) | |
615 | srb->result = SAM_STAT_GOOD; | |
616 | } else { | |
617 | srb->result = DID_ERROR << 16; | |
618 | /* Need reset here */ | |
619 | } | |
620 | } | |
621 | ||
622 | /* Regardless of auto-sense, if we _know_ we have an error | |
623 | * condition, show that in the result code | |
624 | */ | |
625 | if (transferStatus == USB_STOR_TRANSPORT_FAILED) | |
626 | srb->result = SAM_STAT_CHECK_CONDITION; | |
627 | return; | |
628 | ||
629 | /* abort processing: the bulk-only transport requires a reset | |
630 | * following an abort */ | |
631 | Handle_Abort: | |
632 | srb->result = DID_ABORT << 16; | |
633 | ||
634 | /* permit the reset transfer to take place */ | |
635 | clear_bit(US_FLIDX_ABORTING, &us->flags); | |
636 | /* Need reset here */ | |
637 | } | |
638 | ||
639 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
640 | static void isd200_log_config( struct isd200_info* info ) | |
641 | { | |
642 | US_DEBUGP(" Event Notification: 0x%x\n", | |
643 | info->ConfigData.EventNotification); | |
644 | US_DEBUGP(" External Clock: 0x%x\n", | |
645 | info->ConfigData.ExternalClock); | |
646 | US_DEBUGP(" ATA Init Timeout: 0x%x\n", | |
647 | info->ConfigData.ATAInitTimeout); | |
648 | US_DEBUGP(" ATAPI Command Block Size: 0x%x\n", | |
649 | (info->ConfigData.ATAConfig & ATACFG_BLOCKSIZE) >> 6); | |
650 | US_DEBUGP(" Master/Slave Selection: 0x%x\n", | |
651 | info->ConfigData.ATAConfig & ATACFG_MASTER); | |
652 | US_DEBUGP(" ATAPI Reset: 0x%x\n", | |
653 | info->ConfigData.ATAConfig & ATACFG_ATAPI_RESET); | |
654 | US_DEBUGP(" ATA Timing: 0x%x\n", | |
655 | info->ConfigData.ATAConfig & ATACFG_TIMING); | |
656 | US_DEBUGP(" ATA Major Command: 0x%x\n", | |
657 | info->ConfigData.ATAMajorCommand); | |
658 | US_DEBUGP(" ATA Minor Command: 0x%x\n", | |
659 | info->ConfigData.ATAMinorCommand); | |
660 | US_DEBUGP(" Init Status: 0x%x\n", | |
661 | info->ConfigData.ATAExtraConfig & ATACFGE_INIT_STATUS); | |
662 | US_DEBUGP(" Config Descriptor 2: 0x%x\n", | |
663 | info->ConfigData.ATAExtraConfig & ATACFGE_CONF_DESC2); | |
664 | US_DEBUGP(" Skip Device Boot: 0x%x\n", | |
665 | info->ConfigData.ATAExtraConfig & ATACFGE_SKIP_BOOT); | |
666 | US_DEBUGP(" ATA 3 State Supsend: 0x%x\n", | |
667 | info->ConfigData.ATAExtraConfig & ATACFGE_STATE_SUSPEND); | |
668 | US_DEBUGP(" Descriptor Override: 0x%x\n", | |
669 | info->ConfigData.ATAExtraConfig & ATACFGE_DESC_OVERRIDE); | |
670 | US_DEBUGP(" Last LUN Identifier: 0x%x\n", | |
671 | info->ConfigData.ATAExtraConfig & ATACFGE_LAST_LUN); | |
672 | US_DEBUGP(" SRST Enable: 0x%x\n", | |
673 | info->ConfigData.ATAExtraConfig & CFG_CAPABILITY_SRST); | |
674 | } | |
675 | #endif | |
676 | ||
677 | /************************************************************************** | |
678 | * isd200_write_config | |
679 | * | |
680 | * Write the ISD200 Configuration data | |
681 | * | |
682 | * RETURNS: | |
683 | * ISD status code | |
684 | */ | |
685 | static int isd200_write_config( struct us_data *us ) | |
686 | { | |
687 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
688 | int retStatus = ISD200_GOOD; | |
689 | int result; | |
690 | ||
691 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
692 | US_DEBUGP("Entering isd200_write_config\n"); | |
693 | US_DEBUGP(" Writing the following ISD200 Config Data:\n"); | |
694 | isd200_log_config(info); | |
695 | #endif | |
696 | ||
697 | /* let's send the command via the control pipe */ | |
698 | result = usb_stor_ctrl_transfer( | |
699 | us, | |
700 | us->send_ctrl_pipe, | |
701 | 0x01, | |
702 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
703 | 0x0000, | |
704 | 0x0002, | |
705 | (void *) &info->ConfigData, | |
706 | sizeof(info->ConfigData)); | |
707 | ||
708 | if (result >= 0) { | |
709 | US_DEBUGP(" ISD200 Config Data was written successfully\n"); | |
710 | } else { | |
711 | US_DEBUGP(" Request to write ISD200 Config Data failed!\n"); | |
712 | retStatus = ISD200_ERROR; | |
713 | } | |
714 | ||
715 | US_DEBUGP("Leaving isd200_write_config %08X\n", retStatus); | |
716 | return retStatus; | |
717 | } | |
718 | ||
719 | ||
720 | /************************************************************************** | |
721 | * isd200_read_config | |
722 | * | |
723 | * Reads the ISD200 Configuration data | |
724 | * | |
725 | * RETURNS: | |
726 | * ISD status code | |
727 | */ | |
728 | static int isd200_read_config( struct us_data *us ) | |
729 | { | |
730 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
731 | int retStatus = ISD200_GOOD; | |
732 | int result; | |
733 | ||
734 | US_DEBUGP("Entering isd200_read_config\n"); | |
735 | ||
736 | /* read the configuration information from ISD200. Use this to */ | |
737 | /* determine what the special ATA CDB bytes are. */ | |
738 | ||
739 | result = usb_stor_ctrl_transfer( | |
740 | us, | |
741 | us->recv_ctrl_pipe, | |
742 | 0x02, | |
743 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
744 | 0x0000, | |
745 | 0x0002, | |
746 | (void *) &info->ConfigData, | |
747 | sizeof(info->ConfigData)); | |
748 | ||
749 | ||
750 | if (result >= 0) { | |
751 | US_DEBUGP(" Retrieved the following ISD200 Config Data:\n"); | |
752 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
753 | isd200_log_config(info); | |
754 | #endif | |
755 | } else { | |
756 | US_DEBUGP(" Request to get ISD200 Config Data failed!\n"); | |
757 | retStatus = ISD200_ERROR; | |
758 | } | |
759 | ||
760 | US_DEBUGP("Leaving isd200_read_config %08X\n", retStatus); | |
761 | return retStatus; | |
762 | } | |
763 | ||
764 | ||
765 | /************************************************************************** | |
766 | * isd200_atapi_soft_reset | |
767 | * | |
768 | * Perform an Atapi Soft Reset on the device | |
769 | * | |
770 | * RETURNS: | |
771 | * NT status code | |
772 | */ | |
773 | static int isd200_atapi_soft_reset( struct us_data *us ) | |
774 | { | |
775 | int retStatus = ISD200_GOOD; | |
776 | int transferStatus; | |
777 | ||
778 | US_DEBUGP("Entering isd200_atapi_soft_reset\n"); | |
779 | ||
780 | transferStatus = isd200_action( us, ACTION_SOFT_RESET, NULL, 0 ); | |
781 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
782 | US_DEBUGP(" Error issuing Atapi Soft Reset\n"); | |
783 | retStatus = ISD200_ERROR; | |
784 | } | |
785 | ||
786 | US_DEBUGP("Leaving isd200_atapi_soft_reset %08X\n", retStatus); | |
787 | return retStatus; | |
788 | } | |
789 | ||
790 | ||
791 | /************************************************************************** | |
792 | * isd200_srst | |
793 | * | |
794 | * Perform an SRST on the device | |
795 | * | |
796 | * RETURNS: | |
797 | * ISD status code | |
798 | */ | |
799 | static int isd200_srst( struct us_data *us ) | |
800 | { | |
801 | int retStatus = ISD200_GOOD; | |
802 | int transferStatus; | |
803 | ||
804 | US_DEBUGP("Entering isd200_SRST\n"); | |
805 | ||
806 | transferStatus = isd200_action( us, ACTION_RESET, NULL, 0 ); | |
807 | ||
808 | /* check to see if this request failed */ | |
809 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
810 | US_DEBUGP(" Error issuing SRST\n"); | |
811 | retStatus = ISD200_ERROR; | |
812 | } else { | |
813 | /* delay 10ms to give the drive a chance to see it */ | |
814 | msleep(10); | |
815 | ||
816 | transferStatus = isd200_action( us, ACTION_REENABLE, NULL, 0 ); | |
817 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
818 | US_DEBUGP(" Error taking drive out of reset\n"); | |
819 | retStatus = ISD200_ERROR; | |
820 | } else { | |
821 | /* delay 50ms to give the drive a chance to recover after SRST */ | |
822 | msleep(50); | |
823 | } | |
824 | } | |
825 | ||
826 | US_DEBUGP("Leaving isd200_srst %08X\n", retStatus); | |
827 | return retStatus; | |
828 | } | |
829 | ||
830 | ||
831 | /************************************************************************** | |
832 | * isd200_try_enum | |
833 | * | |
834 | * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS | |
835 | * and tries to analyze the status registers | |
836 | * | |
837 | * RETURNS: | |
838 | * ISD status code | |
839 | */ | |
840 | static int isd200_try_enum(struct us_data *us, unsigned char master_slave, | |
841 | int detect ) | |
842 | { | |
843 | int status = ISD200_GOOD; | |
844 | unsigned long endTime; | |
845 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
846 | unsigned char *regs = info->RegsBuf; | |
847 | int recheckAsMaster = 0; | |
848 | ||
849 | if ( detect ) | |
850 | endTime = jiffies + ISD200_ENUM_DETECT_TIMEOUT * HZ; | |
851 | else | |
852 | endTime = jiffies + ISD200_ENUM_BSY_TIMEOUT * HZ; | |
853 | ||
854 | /* loop until we detect !BSY or timeout */ | |
855 | while(1) { | |
856 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
857 | char* mstr = master_slave == ATA_ADDRESS_DEVHEAD_STD ? | |
858 | "Master" : "Slave"; | |
859 | #endif | |
860 | ||
861 | status = isd200_action( us, ACTION_ENUM, NULL, master_slave ); | |
862 | if ( status != ISD200_GOOD ) | |
863 | break; | |
864 | ||
865 | status = isd200_action( us, ACTION_READ_STATUS, | |
866 | regs, 8 ); | |
867 | if ( status != ISD200_GOOD ) | |
868 | break; | |
869 | ||
870 | if (!detect) { | |
871 | if (regs[IDE_STATUS_OFFSET] & BUSY_STAT ) { | |
872 | US_DEBUGP(" %s status is still BSY, try again...\n",mstr); | |
873 | } else { | |
874 | US_DEBUGP(" %s status !BSY, continue with next operation\n",mstr); | |
875 | break; | |
876 | } | |
877 | } | |
878 | /* check for BUSY_STAT and */ | |
879 | /* WRERR_STAT (workaround ATA Zip drive) and */ | |
880 | /* ERR_STAT (workaround for Archos CD-ROM) */ | |
881 | else if (regs[IDE_STATUS_OFFSET] & | |
882 | (BUSY_STAT | WRERR_STAT | ERR_STAT )) { | |
883 | US_DEBUGP(" Status indicates it is not ready, try again...\n"); | |
884 | } | |
885 | /* check for DRDY, ATA devices set DRDY after SRST */ | |
886 | else if (regs[IDE_STATUS_OFFSET] & READY_STAT) { | |
887 | US_DEBUGP(" Identified ATA device\n"); | |
888 | info->DeviceFlags |= DF_ATA_DEVICE; | |
889 | info->DeviceHead = master_slave; | |
890 | break; | |
891 | } | |
892 | /* check Cylinder High/Low to | |
893 | determine if it is an ATAPI device | |
894 | */ | |
895 | else if ((regs[IDE_HCYL_OFFSET] == 0xEB) && | |
896 | (regs[IDE_LCYL_OFFSET] == 0x14)) { | |
897 | /* It seems that the RICOH | |
898 | MP6200A CD/RW drive will | |
899 | report itself okay as a | |
900 | slave when it is really a | |
901 | master. So this check again | |
902 | as a master device just to | |
903 | make sure it doesn't report | |
904 | itself okay as a master also | |
905 | */ | |
906 | if ((master_slave & ATA_ADDRESS_DEVHEAD_SLAVE) && | |
907 | !recheckAsMaster) { | |
908 | US_DEBUGP(" Identified ATAPI device as slave. Rechecking again as master\n"); | |
909 | recheckAsMaster = 1; | |
910 | master_slave = ATA_ADDRESS_DEVHEAD_STD; | |
911 | } else { | |
912 | US_DEBUGP(" Identified ATAPI device\n"); | |
913 | info->DeviceHead = master_slave; | |
914 | ||
915 | status = isd200_atapi_soft_reset(us); | |
916 | break; | |
917 | } | |
918 | } else { | |
919 | US_DEBUGP(" Not ATA, not ATAPI. Weird.\n"); | |
920 | break; | |
921 | } | |
922 | ||
923 | /* check for timeout on this request */ | |
924 | if (time_after_eq(jiffies, endTime)) { | |
925 | if (!detect) | |
926 | US_DEBUGP(" BSY check timeout, just continue with next operation...\n"); | |
927 | else | |
928 | US_DEBUGP(" Device detect timeout!\n"); | |
929 | break; | |
930 | } | |
931 | } | |
932 | ||
933 | return status; | |
934 | } | |
935 | ||
936 | /************************************************************************** | |
937 | * isd200_manual_enum | |
938 | * | |
939 | * Determines if the drive attached is an ATA or ATAPI and if it is a | |
940 | * master or slave. | |
941 | * | |
942 | * RETURNS: | |
943 | * ISD status code | |
944 | */ | |
945 | static int isd200_manual_enum(struct us_data *us) | |
946 | { | |
947 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
948 | int retStatus = ISD200_GOOD; | |
949 | ||
950 | US_DEBUGP("Entering isd200_manual_enum\n"); | |
951 | ||
952 | retStatus = isd200_read_config(us); | |
953 | if (retStatus == ISD200_GOOD) { | |
954 | int isslave; | |
955 | /* master or slave? */ | |
956 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 0); | |
957 | if (retStatus == ISD200_GOOD) | |
958 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_SLAVE, 0); | |
959 | ||
960 | if (retStatus == ISD200_GOOD) { | |
961 | retStatus = isd200_srst(us); | |
962 | if (retStatus == ISD200_GOOD) | |
963 | /* ata or atapi? */ | |
964 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 1); | |
965 | } | |
966 | ||
967 | isslave = (info->DeviceHead & ATA_ADDRESS_DEVHEAD_SLAVE) ? 1 : 0; | |
968 | if (!(info->ConfigData.ATAConfig & ATACFG_MASTER)) { | |
969 | US_DEBUGP(" Setting Master/Slave selection to %d\n", isslave); | |
970 | info->ConfigData.ATAConfig &= 0x3f; | |
971 | info->ConfigData.ATAConfig |= (isslave<<6); | |
972 | retStatus = isd200_write_config(us); | |
973 | } | |
974 | } | |
975 | ||
976 | US_DEBUGP("Leaving isd200_manual_enum %08X\n", retStatus); | |
977 | return(retStatus); | |
978 | } | |
979 | ||
980 | ||
981 | /************************************************************************** | |
982 | * isd200_get_inquiry_data | |
983 | * | |
984 | * Get inquiry data | |
985 | * | |
986 | * RETURNS: | |
987 | * ISD status code | |
988 | */ | |
989 | static int isd200_get_inquiry_data( struct us_data *us ) | |
990 | { | |
991 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
992 | int retStatus = ISD200_GOOD; | |
993 | struct hd_driveid *id = info->id; | |
994 | ||
995 | US_DEBUGP("Entering isd200_get_inquiry_data\n"); | |
996 | ||
997 | /* set default to Master */ | |
998 | info->DeviceHead = ATA_ADDRESS_DEVHEAD_STD; | |
999 | ||
1000 | /* attempt to manually enumerate this device */ | |
1001 | retStatus = isd200_manual_enum(us); | |
1002 | if (retStatus == ISD200_GOOD) { | |
1003 | int transferStatus; | |
1004 | ||
1005 | /* check for an ATA device */ | |
1006 | if (info->DeviceFlags & DF_ATA_DEVICE) { | |
1007 | /* this must be an ATA device */ | |
1008 | /* perform an ATA Command Identify */ | |
1009 | transferStatus = isd200_action( us, ACTION_IDENTIFY, | |
1010 | id, | |
1011 | sizeof(struct hd_driveid) ); | |
1012 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
1013 | /* Error issuing ATA Command Identify */ | |
1014 | US_DEBUGP(" Error issuing ATA Command Identify\n"); | |
1015 | retStatus = ISD200_ERROR; | |
1016 | } else { | |
1017 | /* ATA Command Identify successful */ | |
1018 | int i; | |
1019 | __be16 *src; | |
1020 | __u16 *dest; | |
1021 | ide_fix_driveid(id); | |
1022 | ||
1023 | US_DEBUGP(" Identify Data Structure:\n"); | |
1024 | US_DEBUGP(" config = 0x%x\n", id->config); | |
1025 | US_DEBUGP(" cyls = 0x%x\n", id->cyls); | |
1026 | US_DEBUGP(" heads = 0x%x\n", id->heads); | |
1027 | US_DEBUGP(" track_bytes = 0x%x\n", id->track_bytes); | |
1028 | US_DEBUGP(" sector_bytes = 0x%x\n", id->sector_bytes); | |
1029 | US_DEBUGP(" sectors = 0x%x\n", id->sectors); | |
1030 | US_DEBUGP(" serial_no[0] = 0x%x\n", id->serial_no[0]); | |
1031 | US_DEBUGP(" buf_type = 0x%x\n", id->buf_type); | |
1032 | US_DEBUGP(" buf_size = 0x%x\n", id->buf_size); | |
1033 | US_DEBUGP(" ecc_bytes = 0x%x\n", id->ecc_bytes); | |
1034 | US_DEBUGP(" fw_rev[0] = 0x%x\n", id->fw_rev[0]); | |
1035 | US_DEBUGP(" model[0] = 0x%x\n", id->model[0]); | |
1036 | US_DEBUGP(" max_multsect = 0x%x\n", id->max_multsect); | |
1037 | US_DEBUGP(" dword_io = 0x%x\n", id->dword_io); | |
1038 | US_DEBUGP(" capability = 0x%x\n", id->capability); | |
1039 | US_DEBUGP(" tPIO = 0x%x\n", id->tPIO); | |
1040 | US_DEBUGP(" tDMA = 0x%x\n", id->tDMA); | |
1041 | US_DEBUGP(" field_valid = 0x%x\n", id->field_valid); | |
1042 | US_DEBUGP(" cur_cyls = 0x%x\n", id->cur_cyls); | |
1043 | US_DEBUGP(" cur_heads = 0x%x\n", id->cur_heads); | |
1044 | US_DEBUGP(" cur_sectors = 0x%x\n", id->cur_sectors); | |
1045 | US_DEBUGP(" cur_capacity = 0x%x\n", (id->cur_capacity1 << 16) + id->cur_capacity0 ); | |
1046 | US_DEBUGP(" multsect = 0x%x\n", id->multsect); | |
1047 | US_DEBUGP(" lba_capacity = 0x%x\n", id->lba_capacity); | |
1048 | US_DEBUGP(" command_set_1 = 0x%x\n", id->command_set_1); | |
1049 | US_DEBUGP(" command_set_2 = 0x%x\n", id->command_set_2); | |
1050 | ||
1051 | memset(&info->InquiryData, 0, sizeof(info->InquiryData)); | |
1052 | ||
1053 | /* Standard IDE interface only supports disks */ | |
1054 | info->InquiryData.DeviceType = DIRECT_ACCESS_DEVICE; | |
1055 | ||
1056 | /* The length must be at least 36 (5 + 31) */ | |
1057 | info->InquiryData.AdditionalLength = 0x1F; | |
1058 | ||
1059 | if (id->command_set_1 & COMMANDSET_MEDIA_STATUS) { | |
1060 | /* set the removable bit */ | |
1061 | info->InquiryData.DeviceTypeModifier = DEVICE_REMOVABLE; | |
1062 | info->DeviceFlags |= DF_REMOVABLE_MEDIA; | |
1063 | } | |
1064 | ||
1065 | /* Fill in vendor identification fields */ | |
1066 | src = (__be16*)id->model; | |
1067 | dest = (__u16*)info->InquiryData.VendorId; | |
1068 | for (i=0;i<4;i++) | |
1069 | dest[i] = be16_to_cpu(src[i]); | |
1070 | ||
1071 | src = (__be16*)(id->model+8); | |
1072 | dest = (__u16*)info->InquiryData.ProductId; | |
1073 | for (i=0;i<8;i++) | |
1074 | dest[i] = be16_to_cpu(src[i]); | |
1075 | ||
1076 | src = (__be16*)id->fw_rev; | |
1077 | dest = (__u16*)info->InquiryData.ProductRevisionLevel; | |
1078 | for (i=0;i<2;i++) | |
1079 | dest[i] = be16_to_cpu(src[i]); | |
1080 | ||
1081 | /* determine if it supports Media Status Notification */ | |
1082 | if (id->command_set_2 & COMMANDSET_MEDIA_STATUS) { | |
1083 | US_DEBUGP(" Device supports Media Status Notification\n"); | |
1084 | ||
1085 | /* Indicate that it is enabled, even though it is not | |
1086 | * This allows the lock/unlock of the media to work | |
1087 | * correctly. | |
1088 | */ | |
1089 | info->DeviceFlags |= DF_MEDIA_STATUS_ENABLED; | |
1090 | } | |
1091 | else | |
1092 | info->DeviceFlags &= ~DF_MEDIA_STATUS_ENABLED; | |
1093 | ||
1094 | } | |
1095 | } else { | |
1096 | /* | |
1097 | * this must be an ATAPI device | |
1098 | * use an ATAPI protocol (Transparent SCSI) | |
1099 | */ | |
1100 | us->protocol_name = "Transparent SCSI"; | |
1101 | us->proto_handler = usb_stor_transparent_scsi_command; | |
1102 | ||
1103 | US_DEBUGP("Protocol changed to: %s\n", us->protocol_name); | |
1104 | ||
1105 | /* Free driver structure */ | |
1106 | us->extra_destructor(info); | |
1107 | us->extra = NULL; | |
1108 | us->extra_destructor = NULL; | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | US_DEBUGP("Leaving isd200_get_inquiry_data %08X\n", retStatus); | |
1113 | ||
1114 | return(retStatus); | |
1115 | } | |
1116 | ||
1117 | ||
1118 | /************************************************************************** | |
1119 | * isd200_scsi_to_ata | |
1120 | * | |
1121 | * Translate SCSI commands to ATA commands. | |
1122 | * | |
1123 | * RETURNS: | |
1124 | * 1 if the command needs to be sent to the transport layer | |
1125 | * 0 otherwise | |
1126 | */ | |
1127 | static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us, | |
1128 | union ata_cdb * ataCdb) | |
1129 | { | |
1130 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
1131 | struct hd_driveid *id = info->id; | |
1132 | int sendToTransport = 1; | |
1133 | unsigned char sectnum, head; | |
1134 | unsigned short cylinder; | |
1135 | unsigned long lba; | |
1136 | unsigned long blockCount; | |
1137 | unsigned char senseData[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; | |
1138 | ||
1139 | memset(ataCdb, 0, sizeof(union ata_cdb)); | |
1140 | ||
1141 | /* SCSI Command */ | |
1142 | switch (srb->cmnd[0]) { | |
1143 | case INQUIRY: | |
1144 | US_DEBUGP(" ATA OUT - INQUIRY\n"); | |
1145 | ||
1146 | /* copy InquiryData */ | |
1147 | usb_stor_set_xfer_buf((unsigned char *) &info->InquiryData, | |
1148 | sizeof(info->InquiryData), srb); | |
1149 | srb->result = SAM_STAT_GOOD; | |
1150 | sendToTransport = 0; | |
1151 | break; | |
1152 | ||
1153 | case MODE_SENSE: | |
1154 | US_DEBUGP(" ATA OUT - SCSIOP_MODE_SENSE\n"); | |
1155 | ||
1156 | /* Initialize the return buffer */ | |
1157 | usb_stor_set_xfer_buf(senseData, sizeof(senseData), srb); | |
1158 | ||
1159 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) | |
1160 | { | |
1161 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1162 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1163 | ataCdb->generic.TransferBlockSize = 1; | |
1164 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1165 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
1166 | srb->request_bufflen = 0; | |
1167 | } else { | |
1168 | US_DEBUGP(" Media Status not supported, just report okay\n"); | |
1169 | srb->result = SAM_STAT_GOOD; | |
1170 | sendToTransport = 0; | |
1171 | } | |
1172 | break; | |
1173 | ||
1174 | case TEST_UNIT_READY: | |
1175 | US_DEBUGP(" ATA OUT - SCSIOP_TEST_UNIT_READY\n"); | |
1176 | ||
1177 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) | |
1178 | { | |
1179 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1180 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1181 | ataCdb->generic.TransferBlockSize = 1; | |
1182 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1183 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
1184 | srb->request_bufflen = 0; | |
1185 | } else { | |
1186 | US_DEBUGP(" Media Status not supported, just report okay\n"); | |
1187 | srb->result = SAM_STAT_GOOD; | |
1188 | sendToTransport = 0; | |
1189 | } | |
1190 | break; | |
1191 | ||
1192 | case READ_CAPACITY: | |
1193 | { | |
1194 | unsigned long capacity; | |
1195 | struct read_capacity_data readCapacityData; | |
1196 | ||
1197 | US_DEBUGP(" ATA OUT - SCSIOP_READ_CAPACITY\n"); | |
1198 | ||
1199 | if (id->capability & CAPABILITY_LBA ) { | |
1200 | capacity = id->lba_capacity - 1; | |
1201 | } else { | |
1202 | capacity = (id->heads * | |
1203 | id->cyls * | |
1204 | id->sectors) - 1; | |
1205 | } | |
1206 | readCapacityData.LogicalBlockAddress = cpu_to_be32(capacity); | |
1207 | readCapacityData.BytesPerBlock = cpu_to_be32(0x200); | |
1208 | ||
1209 | usb_stor_set_xfer_buf((unsigned char *) &readCapacityData, | |
1210 | sizeof(readCapacityData), srb); | |
1211 | srb->result = SAM_STAT_GOOD; | |
1212 | sendToTransport = 0; | |
1213 | } | |
1214 | break; | |
1215 | ||
1216 | case READ_10: | |
1217 | US_DEBUGP(" ATA OUT - SCSIOP_READ\n"); | |
1218 | ||
1219 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); | |
1220 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; | |
1221 | ||
1222 | if (id->capability & CAPABILITY_LBA) { | |
1223 | sectnum = (unsigned char)(lba); | |
1224 | cylinder = (unsigned short)(lba>>8); | |
1225 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); | |
1226 | } else { | |
1227 | sectnum = (unsigned char)((lba % id->sectors) + 1); | |
1228 | cylinder = (unsigned short)(lba / (id->sectors * | |
1229 | id->heads)); | |
1230 | head = (unsigned char)((lba / id->sectors) % | |
1231 | id->heads); | |
1232 | } | |
1233 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1234 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1235 | ataCdb->generic.TransferBlockSize = 1; | |
1236 | ataCdb->generic.RegisterSelect = | |
1237 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | | |
1238 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
1239 | REG_DEVICE_HEAD | REG_COMMAND; | |
1240 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; | |
1241 | ataCdb->write.SectorNumberByte = sectnum; | |
1242 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); | |
1243 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; | |
1244 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); | |
1245 | ataCdb->write.CommandByte = WIN_READ; | |
1246 | break; | |
1247 | ||
1248 | case WRITE_10: | |
1249 | US_DEBUGP(" ATA OUT - SCSIOP_WRITE\n"); | |
1250 | ||
1251 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); | |
1252 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; | |
1253 | ||
1254 | if (id->capability & CAPABILITY_LBA) { | |
1255 | sectnum = (unsigned char)(lba); | |
1256 | cylinder = (unsigned short)(lba>>8); | |
1257 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); | |
1258 | } else { | |
1259 | sectnum = (unsigned char)((lba % id->sectors) + 1); | |
1260 | cylinder = (unsigned short)(lba / (id->sectors * id->heads)); | |
1261 | head = (unsigned char)((lba / id->sectors) % id->heads); | |
1262 | } | |
1263 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1264 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1265 | ataCdb->generic.TransferBlockSize = 1; | |
1266 | ataCdb->generic.RegisterSelect = | |
1267 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | | |
1268 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
1269 | REG_DEVICE_HEAD | REG_COMMAND; | |
1270 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; | |
1271 | ataCdb->write.SectorNumberByte = sectnum; | |
1272 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); | |
1273 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; | |
1274 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); | |
1275 | ataCdb->write.CommandByte = WIN_WRITE; | |
1276 | break; | |
1277 | ||
1278 | case ALLOW_MEDIUM_REMOVAL: | |
1279 | US_DEBUGP(" ATA OUT - SCSIOP_MEDIUM_REMOVAL\n"); | |
1280 | ||
1281 | if (info->DeviceFlags & DF_REMOVABLE_MEDIA) { | |
1282 | US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); | |
1283 | ||
1284 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1285 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1286 | ataCdb->generic.TransferBlockSize = 1; | |
1287 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1288 | ataCdb->write.CommandByte = (srb->cmnd[4] & 0x1) ? | |
1289 | WIN_DOORLOCK : WIN_DOORUNLOCK; | |
1290 | srb->request_bufflen = 0; | |
1291 | } else { | |
1292 | US_DEBUGP(" Not removeable media, just report okay\n"); | |
1293 | srb->result = SAM_STAT_GOOD; | |
1294 | sendToTransport = 0; | |
1295 | } | |
1296 | break; | |
1297 | ||
1298 | case START_STOP: | |
1299 | US_DEBUGP(" ATA OUT - SCSIOP_START_STOP_UNIT\n"); | |
1300 | US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); | |
1301 | ||
1302 | if ((srb->cmnd[4] & 0x3) == 0x2) { | |
1303 | US_DEBUGP(" Media Eject\n"); | |
1304 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1305 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1306 | ataCdb->generic.TransferBlockSize = 0; | |
1307 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1308 | ataCdb->write.CommandByte = ATA_COMMAND_MEDIA_EJECT; | |
1309 | } else if ((srb->cmnd[4] & 0x3) == 0x1) { | |
1310 | US_DEBUGP(" Get Media Status\n"); | |
1311 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1312 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1313 | ataCdb->generic.TransferBlockSize = 1; | |
1314 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1315 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
1316 | srb->request_bufflen = 0; | |
1317 | } else { | |
1318 | US_DEBUGP(" Nothing to do, just report okay\n"); | |
1319 | srb->result = SAM_STAT_GOOD; | |
1320 | sendToTransport = 0; | |
1321 | } | |
1322 | break; | |
1323 | ||
1324 | default: | |
1325 | US_DEBUGP("Unsupported SCSI command - 0x%X\n", srb->cmnd[0]); | |
1326 | srb->result = DID_ERROR << 16; | |
1327 | sendToTransport = 0; | |
1328 | break; | |
1329 | } | |
1330 | ||
1331 | return(sendToTransport); | |
1332 | } | |
1333 | ||
1334 | ||
1335 | /************************************************************************** | |
1336 | * isd200_free_info | |
1337 | * | |
1338 | * Frees the driver structure. | |
1339 | */ | |
1340 | static void isd200_free_info_ptrs(void *info_) | |
1341 | { | |
1342 | struct isd200_info *info = (struct isd200_info *) info_; | |
1343 | ||
1344 | if (info) { | |
1345 | kfree(info->id); | |
1346 | kfree(info->RegsBuf); | |
1347 | } | |
1348 | } | |
1349 | ||
1350 | /************************************************************************** | |
1351 | * isd200_init_info | |
1352 | * | |
1353 | * Allocates (if necessary) and initializes the driver structure. | |
1354 | * | |
1355 | * RETURNS: | |
1356 | * ISD status code | |
1357 | */ | |
1358 | static int isd200_init_info(struct us_data *us) | |
1359 | { | |
1360 | int retStatus = ISD200_GOOD; | |
1361 | struct isd200_info *info; | |
1362 | ||
1363 | info = (struct isd200_info *) | |
887c2560 | 1364 | kzalloc(sizeof(struct isd200_info), GFP_KERNEL); |
1da177e4 LT |
1365 | if (!info) |
1366 | retStatus = ISD200_ERROR; | |
1367 | else { | |
1da177e4 | 1368 | info->id = (struct hd_driveid *) |
887c2560 | 1369 | kzalloc(sizeof(struct hd_driveid), GFP_KERNEL); |
1da177e4 LT |
1370 | info->RegsBuf = (unsigned char *) |
1371 | kmalloc(sizeof(info->ATARegs), GFP_KERNEL); | |
1372 | if (!info->id || !info->RegsBuf) { | |
1373 | isd200_free_info_ptrs(info); | |
1374 | kfree(info); | |
1375 | retStatus = ISD200_ERROR; | |
887c2560 | 1376 | } |
1da177e4 LT |
1377 | } |
1378 | ||
1379 | if (retStatus == ISD200_GOOD) { | |
1380 | us->extra = info; | |
1381 | us->extra_destructor = isd200_free_info_ptrs; | |
1382 | } else | |
1383 | US_DEBUGP("ERROR - kmalloc failure\n"); | |
1384 | ||
80b6ca48 | 1385 | return retStatus; |
1da177e4 LT |
1386 | } |
1387 | ||
1388 | /************************************************************************** | |
1389 | * Initialization for the ISD200 | |
1390 | */ | |
1391 | ||
1392 | int isd200_Initialization(struct us_data *us) | |
1393 | { | |
1394 | US_DEBUGP("ISD200 Initialization...\n"); | |
1395 | ||
1396 | /* Initialize ISD200 info struct */ | |
1397 | ||
1398 | if (isd200_init_info(us) == ISD200_ERROR) { | |
1399 | US_DEBUGP("ERROR Initializing ISD200 Info struct\n"); | |
1400 | } else { | |
1401 | /* Get device specific data */ | |
1402 | ||
1403 | if (isd200_get_inquiry_data(us) != ISD200_GOOD) | |
1404 | US_DEBUGP("ISD200 Initialization Failure\n"); | |
1405 | else | |
1406 | US_DEBUGP("ISD200 Initialization complete\n"); | |
1407 | } | |
1408 | ||
1409 | return 0; | |
1410 | } | |
1411 | ||
1412 | ||
1413 | /************************************************************************** | |
1414 | * Protocol and Transport for the ISD200 ASIC | |
1415 | * | |
1416 | * This protocol and transport are for ATA devices connected to an ISD200 | |
1417 | * ASIC. An ATAPI device that is conected as a slave device will be | |
1418 | * detected in the driver initialization function and the protocol will | |
1419 | * be changed to an ATAPI protocol (Transparent SCSI). | |
1420 | * | |
1421 | */ | |
1422 | ||
1423 | void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us) | |
1424 | { | |
1425 | int sendToTransport = 1; | |
1426 | union ata_cdb ataCdb; | |
1427 | ||
1428 | /* Make sure driver was initialized */ | |
1429 | ||
1430 | if (us->extra == NULL) | |
1431 | US_DEBUGP("ERROR Driver not initialized\n"); | |
1432 | ||
1433 | /* Convert command */ | |
1434 | srb->resid = 0; | |
1435 | sendToTransport = isd200_scsi_to_ata(srb, us, &ataCdb); | |
1436 | ||
1437 | /* send the command to the transport layer */ | |
1438 | if (sendToTransport) | |
1439 | isd200_invoke_transport(us, srb, &ataCdb); | |
1440 | } |