1 /* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC
3 * Current development and maintenance:
4 * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se)
6 * Developed with the assistance of:
7 * (C) 2002 Alan Stern <stern@rowland.org>
10 * (C) 2000 In-System Design, Inc. (support@in-system.com)
12 * The ISD200 ASIC does not natively support ATA devices. The chip
13 * does implement an interface, the ATA Command Block (ATACB) which provides
14 * a means of passing ATA commands and ATA register accesses to a device.
16 * This program is free software; you can redistribute it and/or modify it
17 * under the terms of the GNU General Public License as published by the
18 * Free Software Foundation; either version 2, or (at your option) any
21 * This program is distributed in the hope that it will be useful, but
22 * WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 * General Public License for more details.
26 * You should have received a copy of the GNU General Public License along
27 * with this program; if not, write to the Free Software Foundation, Inc.,
28 * 675 Mass Ave, Cambridge, MA 02139, USA.
32 * 2002-10-19: Removed the specialized transfer routines.
33 * (Alan Stern <stern@rowland.harvard.edu>)
34 * 2001-02-24: Removed lots of duplicate code and simplified the structure.
36 * 2002-01-16: Fixed endianness bug so it works on the ppc arch.
37 * (Luc Saillard <luc@saillard.org>)
38 * 2002-01-17: All bitfields removed.
45 #include <linux/jiffies.h>
46 #include <linux/errno.h>
47 #include <linux/module.h>
48 #include <linux/slab.h>
49 #include <linux/ata.h>
50 #include <linux/hdreg.h>
51 #include <linux/scatterlist.h>
53 #include <scsi/scsi.h>
54 #include <scsi/scsi_cmnd.h>
55 #include <scsi/scsi_device.h>
58 #include "transport.h"
63 MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC");
64 MODULE_AUTHOR("Björn Stenberg <bjorn@haxx.se>");
65 MODULE_LICENSE("GPL");
67 static int isd200_Initialization(struct us_data
*us
);
71 * The table of devices
73 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
74 vendorName, productName, useProtocol, useTransport, \
75 initFunction, flags) \
76 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
77 .driver_info = (flags) }
79 static struct usb_device_id isd200_usb_ids
[] = {
80 # include "unusual_isd200.h"
81 { } /* Terminating entry */
83 MODULE_DEVICE_TABLE(usb
, isd200_usb_ids
);
90 #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
91 vendor_name, product_name, use_protocol, use_transport, \
92 init_function, Flags) \
94 .vendorName = vendor_name, \
95 .productName = product_name, \
96 .useProtocol = use_protocol, \
97 .useTransport = use_transport, \
98 .initFunction = init_function, \
101 static struct us_unusual_dev isd200_unusual_dev_list
[] = {
102 # include "unusual_isd200.h"
103 { } /* Terminating entry */
108 /* Timeout defines (in Seconds) */
110 #define ISD200_ENUM_BSY_TIMEOUT 35
111 #define ISD200_ENUM_DETECT_TIMEOUT 30
112 #define ISD200_DEFAULT_TIMEOUT 30
115 #define DF_ATA_DEVICE 0x0001
116 #define DF_MEDIA_STATUS_ENABLED 0x0002
117 #define DF_REMOVABLE_MEDIA 0x0004
119 /* capability bit definitions */
120 #define CAPABILITY_DMA 0x01
121 #define CAPABILITY_LBA 0x02
123 /* command_setX bit definitions */
124 #define COMMANDSET_REMOVABLE 0x02
125 #define COMMANDSET_MEDIA_STATUS 0x10
127 /* ATA Vendor Specific defines */
128 #define ATA_ADDRESS_DEVHEAD_STD 0xa0
129 #define ATA_ADDRESS_DEVHEAD_LBA_MODE 0x40
130 #define ATA_ADDRESS_DEVHEAD_SLAVE 0x10
132 /* Action Select bits */
133 #define ACTION_SELECT_0 0x01
134 #define ACTION_SELECT_1 0x02
135 #define ACTION_SELECT_2 0x04
136 #define ACTION_SELECT_3 0x08
137 #define ACTION_SELECT_4 0x10
138 #define ACTION_SELECT_5 0x20
139 #define ACTION_SELECT_6 0x40
140 #define ACTION_SELECT_7 0x80
142 /* Register Select bits */
143 #define REG_ALTERNATE_STATUS 0x01
144 #define REG_DEVICE_CONTROL 0x01
145 #define REG_ERROR 0x02
146 #define REG_FEATURES 0x02
147 #define REG_SECTOR_COUNT 0x04
148 #define REG_SECTOR_NUMBER 0x08
149 #define REG_CYLINDER_LOW 0x10
150 #define REG_CYLINDER_HIGH 0x20
151 #define REG_DEVICE_HEAD 0x40
152 #define REG_STATUS 0x80
153 #define REG_COMMAND 0x80
155 /* ATA registers offset definitions */
156 #define ATA_REG_ERROR_OFFSET 1
157 #define ATA_REG_LCYL_OFFSET 4
158 #define ATA_REG_HCYL_OFFSET 5
159 #define ATA_REG_STATUS_OFFSET 7
161 /* ATA error definitions not in <linux/hdreg.h> */
162 #define ATA_ERROR_MEDIA_CHANGE 0x20
164 /* ATA command definitions not in <linux/hdreg.h> */
165 #define ATA_COMMAND_GET_MEDIA_STATUS 0xDA
166 #define ATA_COMMAND_MEDIA_EJECT 0xED
168 /* ATA drive control definitions */
169 #define ATA_DC_DISABLE_INTERRUPTS 0x02
170 #define ATA_DC_RESET_CONTROLLER 0x04
171 #define ATA_DC_REENABLE_CONTROLLER 0x00
174 * General purpose return codes
177 #define ISD200_ERROR -1
178 #define ISD200_GOOD 0
181 * Transport return codes
184 #define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */
185 #define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */
186 #define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */
188 /* driver action codes */
189 #define ACTION_READ_STATUS 0
190 #define ACTION_RESET 1
191 #define ACTION_REENABLE 2
192 #define ACTION_SOFT_RESET 3
193 #define ACTION_ENUM 4
194 #define ACTION_IDENTIFY 5
204 unsigned char SignatureByte0
;
205 unsigned char SignatureByte1
;
206 unsigned char ActionSelect
;
207 unsigned char RegisterSelect
;
208 unsigned char TransferBlockSize
;
209 unsigned char WriteData3F6
;
210 unsigned char WriteData1F1
;
211 unsigned char WriteData1F2
;
212 unsigned char WriteData1F3
;
213 unsigned char WriteData1F4
;
214 unsigned char WriteData1F5
;
215 unsigned char WriteData1F6
;
216 unsigned char WriteData1F7
;
217 unsigned char Reserved
[3];
221 unsigned char SignatureByte0
;
222 unsigned char SignatureByte1
;
223 unsigned char ActionSelect
;
224 unsigned char RegisterSelect
;
225 unsigned char TransferBlockSize
;
226 unsigned char AlternateStatusByte
;
227 unsigned char ErrorByte
;
228 unsigned char SectorCountByte
;
229 unsigned char SectorNumberByte
;
230 unsigned char CylinderLowByte
;
231 unsigned char CylinderHighByte
;
232 unsigned char DeviceHeadByte
;
233 unsigned char StatusByte
;
234 unsigned char Reserved
[3];
238 unsigned char SignatureByte0
;
239 unsigned char SignatureByte1
;
240 unsigned char ActionSelect
;
241 unsigned char RegisterSelect
;
242 unsigned char TransferBlockSize
;
243 unsigned char DeviceControlByte
;
244 unsigned char FeaturesByte
;
245 unsigned char SectorCountByte
;
246 unsigned char SectorNumberByte
;
247 unsigned char CylinderLowByte
;
248 unsigned char CylinderHighByte
;
249 unsigned char DeviceHeadByte
;
250 unsigned char CommandByte
;
251 unsigned char Reserved
[3];
257 * Inquiry data structure. This is the data returned from the target
258 * after it receives an inquiry.
260 * This structure may be extended by the number of bytes specified
261 * in the field AdditionalLength. The defined size constant only
262 * includes fields through ProductRevisionLevel.
268 #define DIRECT_ACCESS_DEVICE 0x00 /* disks */
269 #define DEVICE_REMOVABLE 0x80
271 struct inquiry_data
{
272 unsigned char DeviceType
;
273 unsigned char DeviceTypeModifier
;
274 unsigned char Versions
;
275 unsigned char Format
;
276 unsigned char AdditionalLength
;
277 unsigned char Reserved
[2];
278 unsigned char Capability
;
279 unsigned char VendorId
[8];
280 unsigned char ProductId
[16];
281 unsigned char ProductRevisionLevel
[4];
282 unsigned char VendorSpecific
[20];
283 unsigned char Reserved3
[40];
284 } __attribute__ ((packed
));
287 * INQUIRY data buffer size
290 #define INQUIRYDATABUFFERSIZE 36
294 * ISD200 CONFIG data struct
297 #define ATACFG_TIMING 0x0f
298 #define ATACFG_ATAPI_RESET 0x10
299 #define ATACFG_MASTER 0x20
300 #define ATACFG_BLOCKSIZE 0xa0
302 #define ATACFGE_LAST_LUN 0x07
303 #define ATACFGE_DESC_OVERRIDE 0x08
304 #define ATACFGE_STATE_SUSPEND 0x10
305 #define ATACFGE_SKIP_BOOT 0x20
306 #define ATACFGE_CONF_DESC2 0x40
307 #define ATACFGE_INIT_STATUS 0x80
309 #define CFG_CAPABILITY_SRST 0x01
311 struct isd200_config
{
312 unsigned char EventNotification
;
313 unsigned char ExternalClock
;
314 unsigned char ATAInitTimeout
;
315 unsigned char ATAConfig
;
316 unsigned char ATAMajorCommand
;
317 unsigned char ATAMinorCommand
;
318 unsigned char ATAExtraConfig
;
319 unsigned char Capability
;
320 }__attribute__ ((packed
));
324 * ISD200 driver information struct
328 struct inquiry_data InquiryData
;
330 struct isd200_config ConfigData
;
331 unsigned char *RegsBuf
;
332 unsigned char ATARegs
[8];
333 unsigned char DeviceHead
;
334 unsigned char DeviceFlags
;
336 /* maximum number of LUNs supported */
337 unsigned char MaxLUNs
;
338 unsigned char cmnd
[BLK_MAX_CDB
];
339 struct scsi_cmnd srb
;
340 struct scatterlist sg
;
345 * Read Capacity Data - returned in Big Endian format
348 struct read_capacity_data
{
349 __be32 LogicalBlockAddress
;
350 __be32 BytesPerBlock
;
354 * Read Block Limits Data - returned in Big Endian format
355 * This structure returns the maximum and minimum block
356 * size for a TAPE device.
359 struct read_block_limits
{
360 unsigned char Reserved
;
361 unsigned char BlockMaximumSize
[3];
362 unsigned char BlockMinimumSize
[2];
370 #define SENSE_ERRCODE 0x7f
371 #define SENSE_ERRCODE_VALID 0x80
372 #define SENSE_FLAG_SENSE_KEY 0x0f
373 #define SENSE_FLAG_BAD_LENGTH 0x20
374 #define SENSE_FLAG_END_OF_MEDIA 0x40
375 #define SENSE_FLAG_FILE_MARK 0x80
377 unsigned char ErrorCode
;
378 unsigned char SegmentNumber
;
380 unsigned char Information
[4];
381 unsigned char AdditionalSenseLength
;
382 unsigned char CommandSpecificInformation
[4];
383 unsigned char AdditionalSenseCode
;
384 unsigned char AdditionalSenseCodeQualifier
;
385 unsigned char FieldReplaceableUnitCode
;
386 unsigned char SenseKeySpecific
[3];
387 } __attribute__ ((packed
));
390 * Default request sense buffer size
393 #define SENSE_BUFFER_SIZE 18
395 /***********************************************************************
397 ***********************************************************************/
399 /**************************************************************************
402 * Builds an artificial sense buffer to report the results of a
408 static void isd200_build_sense(struct us_data
*us
, struct scsi_cmnd
*srb
)
410 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
411 struct sense_data
*buf
= (struct sense_data
*) &srb
->sense_buffer
[0];
412 unsigned char error
= info
->ATARegs
[ATA_REG_ERROR_OFFSET
];
414 if(error
& ATA_ERROR_MEDIA_CHANGE
) {
415 buf
->ErrorCode
= 0x70 | SENSE_ERRCODE_VALID
;
416 buf
->AdditionalSenseLength
= 0xb;
417 buf
->Flags
= UNIT_ATTENTION
;
418 buf
->AdditionalSenseCode
= 0;
419 buf
->AdditionalSenseCodeQualifier
= 0;
420 } else if (error
& ATA_MCR
) {
421 buf
->ErrorCode
= 0x70 | SENSE_ERRCODE_VALID
;
422 buf
->AdditionalSenseLength
= 0xb;
423 buf
->Flags
= UNIT_ATTENTION
;
424 buf
->AdditionalSenseCode
= 0;
425 buf
->AdditionalSenseCodeQualifier
= 0;
426 } else if (error
& ATA_TRK0NF
) {
427 buf
->ErrorCode
= 0x70 | SENSE_ERRCODE_VALID
;
428 buf
->AdditionalSenseLength
= 0xb;
429 buf
->Flags
= NOT_READY
;
430 buf
->AdditionalSenseCode
= 0;
431 buf
->AdditionalSenseCodeQualifier
= 0;
432 } else if (error
& ATA_UNC
) {
433 buf
->ErrorCode
= 0x70 | SENSE_ERRCODE_VALID
;
434 buf
->AdditionalSenseLength
= 0xb;
435 buf
->Flags
= DATA_PROTECT
;
436 buf
->AdditionalSenseCode
= 0;
437 buf
->AdditionalSenseCodeQualifier
= 0;
440 buf
->AdditionalSenseLength
= 0;
442 buf
->AdditionalSenseCode
= 0;
443 buf
->AdditionalSenseCodeQualifier
= 0;
448 /***********************************************************************
450 ***********************************************************************/
452 /**************************************************************************
453 * isd200_set_srb(), isd200_srb_set_bufflen()
455 * Two helpers to facilitate in initialization of scsi_cmnd structure
456 * Will need to change when struct scsi_cmnd changes
458 static void isd200_set_srb(struct isd200_info
*info
,
459 enum dma_data_direction dir
, void* buff
, unsigned bufflen
)
461 struct scsi_cmnd
*srb
= &info
->srb
;
464 sg_init_one(&info
->sg
, buff
, bufflen
);
466 srb
->sc_data_direction
= dir
;
467 srb
->sdb
.table
.sgl
= buff
? &info
->sg
: NULL
;
468 srb
->sdb
.length
= bufflen
;
469 srb
->sdb
.table
.nents
= buff
? 1 : 0;
472 static void isd200_srb_set_bufflen(struct scsi_cmnd
*srb
, unsigned bufflen
)
474 srb
->sdb
.length
= bufflen
;
478 /**************************************************************************
481 * Routine for sending commands to the isd200
486 static int isd200_action( struct us_data
*us
, int action
,
487 void* pointer
, int value
)
490 /* static to prevent this large struct being placed on the valuable stack */
491 static struct scsi_device srb_dev
;
492 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
493 struct scsi_cmnd
*srb
= &info
->srb
;
496 memset(&ata
, 0, sizeof(ata
));
497 srb
->cmnd
= info
->cmnd
;
498 srb
->device
= &srb_dev
;
500 ata
.generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
501 ata
.generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
502 ata
.generic
.TransferBlockSize
= 1;
505 case ACTION_READ_STATUS
:
506 usb_stor_dbg(us
, " isd200_action(READ_STATUS)\n");
507 ata
.generic
.ActionSelect
= ACTION_SELECT_0
|ACTION_SELECT_2
;
508 ata
.generic
.RegisterSelect
=
509 REG_CYLINDER_LOW
| REG_CYLINDER_HIGH
|
510 REG_STATUS
| REG_ERROR
;
511 isd200_set_srb(info
, DMA_FROM_DEVICE
, pointer
, value
);
515 usb_stor_dbg(us
, " isd200_action(ENUM,0x%02x)\n", value
);
516 ata
.generic
.ActionSelect
= ACTION_SELECT_1
|ACTION_SELECT_2
|
517 ACTION_SELECT_3
|ACTION_SELECT_4
|
519 ata
.generic
.RegisterSelect
= REG_DEVICE_HEAD
;
520 ata
.write
.DeviceHeadByte
= value
;
521 isd200_set_srb(info
, DMA_NONE
, NULL
, 0);
525 usb_stor_dbg(us
, " isd200_action(RESET)\n");
526 ata
.generic
.ActionSelect
= ACTION_SELECT_1
|ACTION_SELECT_2
|
527 ACTION_SELECT_3
|ACTION_SELECT_4
;
528 ata
.generic
.RegisterSelect
= REG_DEVICE_CONTROL
;
529 ata
.write
.DeviceControlByte
= ATA_DC_RESET_CONTROLLER
;
530 isd200_set_srb(info
, DMA_NONE
, NULL
, 0);
533 case ACTION_REENABLE
:
534 usb_stor_dbg(us
, " isd200_action(REENABLE)\n");
535 ata
.generic
.ActionSelect
= ACTION_SELECT_1
|ACTION_SELECT_2
|
536 ACTION_SELECT_3
|ACTION_SELECT_4
;
537 ata
.generic
.RegisterSelect
= REG_DEVICE_CONTROL
;
538 ata
.write
.DeviceControlByte
= ATA_DC_REENABLE_CONTROLLER
;
539 isd200_set_srb(info
, DMA_NONE
, NULL
, 0);
542 case ACTION_SOFT_RESET
:
543 usb_stor_dbg(us
, " isd200_action(SOFT_RESET)\n");
544 ata
.generic
.ActionSelect
= ACTION_SELECT_1
|ACTION_SELECT_5
;
545 ata
.generic
.RegisterSelect
= REG_DEVICE_HEAD
| REG_COMMAND
;
546 ata
.write
.DeviceHeadByte
= info
->DeviceHead
;
547 ata
.write
.CommandByte
= ATA_CMD_DEV_RESET
;
548 isd200_set_srb(info
, DMA_NONE
, NULL
, 0);
551 case ACTION_IDENTIFY
:
552 usb_stor_dbg(us
, " isd200_action(IDENTIFY)\n");
553 ata
.generic
.RegisterSelect
= REG_COMMAND
;
554 ata
.write
.CommandByte
= ATA_CMD_ID_ATA
;
555 isd200_set_srb(info
, DMA_FROM_DEVICE
, info
->id
,
560 usb_stor_dbg(us
, "Error: Undefined action %d\n", action
);
564 memcpy(srb
->cmnd
, &ata
, sizeof(ata
.generic
));
565 srb
->cmd_len
= sizeof(ata
.generic
);
566 status
= usb_stor_Bulk_transport(srb
, us
);
567 if (status
== USB_STOR_TRANSPORT_GOOD
)
568 status
= ISD200_GOOD
;
570 usb_stor_dbg(us
, " isd200_action(0x%02x) error: %d\n",
572 status
= ISD200_ERROR
;
573 /* need to reset device here */
579 /**************************************************************************
587 static int isd200_read_regs( struct us_data
*us
)
589 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
590 int retStatus
= ISD200_GOOD
;
593 usb_stor_dbg(us
, "Entering isd200_IssueATAReadRegs\n");
595 transferStatus
= isd200_action( us
, ACTION_READ_STATUS
,
596 info
->RegsBuf
, sizeof(info
->ATARegs
) );
597 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
598 usb_stor_dbg(us
, " Error reading ATA registers\n");
599 retStatus
= ISD200_ERROR
;
601 memcpy(info
->ATARegs
, info
->RegsBuf
, sizeof(info
->ATARegs
));
602 usb_stor_dbg(us
, " Got ATA Register[ATA_REG_ERROR_OFFSET] = 0x%x\n",
603 info
->ATARegs
[ATA_REG_ERROR_OFFSET
]);
610 /**************************************************************************
611 * Invoke the transport and basic error-handling/recovery methods
613 * This is used by the protocol layers to actually send the message to
614 * the device and receive the response.
616 static void isd200_invoke_transport( struct us_data
*us
,
617 struct scsi_cmnd
*srb
,
618 union ata_cdb
*ataCdb
)
620 int need_auto_sense
= 0;
624 /* send the command to the transport layer */
625 memcpy(srb
->cmnd
, ataCdb
, sizeof(ataCdb
->generic
));
626 srb
->cmd_len
= sizeof(ataCdb
->generic
);
627 transferStatus
= usb_stor_Bulk_transport(srb
, us
);
629 /* if the command gets aborted by the higher layers, we need to
630 * short-circuit all other processing
632 if (test_bit(US_FLIDX_TIMED_OUT
, &us
->dflags
)) {
633 usb_stor_dbg(us
, "-- command was aborted\n");
637 switch (transferStatus
) {
639 case USB_STOR_TRANSPORT_GOOD
:
640 /* Indicate a good result */
641 srb
->result
= SAM_STAT_GOOD
;
644 case USB_STOR_TRANSPORT_NO_SENSE
:
645 usb_stor_dbg(us
, "-- transport indicates protocol failure\n");
646 srb
->result
= SAM_STAT_CHECK_CONDITION
;
649 case USB_STOR_TRANSPORT_FAILED
:
650 usb_stor_dbg(us
, "-- transport indicates command failure\n");
654 case USB_STOR_TRANSPORT_ERROR
:
655 usb_stor_dbg(us
, "-- transport indicates transport error\n");
656 srb
->result
= DID_ERROR
<< 16;
657 /* Need reset here */
661 usb_stor_dbg(us
, "-- transport indicates unknown error\n");
662 srb
->result
= DID_ERROR
<< 16;
663 /* Need reset here */
667 if ((scsi_get_resid(srb
) > 0) &&
668 !((srb
->cmnd
[0] == REQUEST_SENSE
) ||
669 (srb
->cmnd
[0] == INQUIRY
) ||
670 (srb
->cmnd
[0] == MODE_SENSE
) ||
671 (srb
->cmnd
[0] == LOG_SENSE
) ||
672 (srb
->cmnd
[0] == MODE_SENSE_10
))) {
673 usb_stor_dbg(us
, "-- unexpectedly short transfer\n");
677 if (need_auto_sense
) {
678 result
= isd200_read_regs(us
);
679 if (test_bit(US_FLIDX_TIMED_OUT
, &us
->dflags
)) {
680 usb_stor_dbg(us
, "-- auto-sense aborted\n");
683 if (result
== ISD200_GOOD
) {
684 isd200_build_sense(us
, srb
);
685 srb
->result
= SAM_STAT_CHECK_CONDITION
;
687 /* If things are really okay, then let's show that */
688 if ((srb
->sense_buffer
[2] & 0xf) == 0x0)
689 srb
->result
= SAM_STAT_GOOD
;
691 srb
->result
= DID_ERROR
<< 16;
692 /* Need reset here */
696 /* Regardless of auto-sense, if we _know_ we have an error
697 * condition, show that in the result code
699 if (transferStatus
== USB_STOR_TRANSPORT_FAILED
)
700 srb
->result
= SAM_STAT_CHECK_CONDITION
;
703 /* abort processing: the bulk-only transport requires a reset
704 * following an abort */
706 srb
->result
= DID_ABORT
<< 16;
708 /* permit the reset transfer to take place */
709 clear_bit(US_FLIDX_ABORTING
, &us
->dflags
);
710 /* Need reset here */
713 #ifdef CONFIG_USB_STORAGE_DEBUG
714 static void isd200_log_config(struct us_data
*us
, struct isd200_info
*info
)
716 usb_stor_dbg(us
, " Event Notification: 0x%x\n",
717 info
->ConfigData
.EventNotification
);
718 usb_stor_dbg(us
, " External Clock: 0x%x\n",
719 info
->ConfigData
.ExternalClock
);
720 usb_stor_dbg(us
, " ATA Init Timeout: 0x%x\n",
721 info
->ConfigData
.ATAInitTimeout
);
722 usb_stor_dbg(us
, " ATAPI Command Block Size: 0x%x\n",
723 (info
->ConfigData
.ATAConfig
& ATACFG_BLOCKSIZE
) >> 6);
724 usb_stor_dbg(us
, " Master/Slave Selection: 0x%x\n",
725 info
->ConfigData
.ATAConfig
& ATACFG_MASTER
);
726 usb_stor_dbg(us
, " ATAPI Reset: 0x%x\n",
727 info
->ConfigData
.ATAConfig
& ATACFG_ATAPI_RESET
);
728 usb_stor_dbg(us
, " ATA Timing: 0x%x\n",
729 info
->ConfigData
.ATAConfig
& ATACFG_TIMING
);
730 usb_stor_dbg(us
, " ATA Major Command: 0x%x\n",
731 info
->ConfigData
.ATAMajorCommand
);
732 usb_stor_dbg(us
, " ATA Minor Command: 0x%x\n",
733 info
->ConfigData
.ATAMinorCommand
);
734 usb_stor_dbg(us
, " Init Status: 0x%x\n",
735 info
->ConfigData
.ATAExtraConfig
& ATACFGE_INIT_STATUS
);
736 usb_stor_dbg(us
, " Config Descriptor 2: 0x%x\n",
737 info
->ConfigData
.ATAExtraConfig
& ATACFGE_CONF_DESC2
);
738 usb_stor_dbg(us
, " Skip Device Boot: 0x%x\n",
739 info
->ConfigData
.ATAExtraConfig
& ATACFGE_SKIP_BOOT
);
740 usb_stor_dbg(us
, " ATA 3 State Supsend: 0x%x\n",
741 info
->ConfigData
.ATAExtraConfig
& ATACFGE_STATE_SUSPEND
);
742 usb_stor_dbg(us
, " Descriptor Override: 0x%x\n",
743 info
->ConfigData
.ATAExtraConfig
& ATACFGE_DESC_OVERRIDE
);
744 usb_stor_dbg(us
, " Last LUN Identifier: 0x%x\n",
745 info
->ConfigData
.ATAExtraConfig
& ATACFGE_LAST_LUN
);
746 usb_stor_dbg(us
, " SRST Enable: 0x%x\n",
747 info
->ConfigData
.ATAExtraConfig
& CFG_CAPABILITY_SRST
);
751 /**************************************************************************
752 * isd200_write_config
754 * Write the ISD200 Configuration data
759 static int isd200_write_config( struct us_data
*us
)
761 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
762 int retStatus
= ISD200_GOOD
;
765 #ifdef CONFIG_USB_STORAGE_DEBUG
766 usb_stor_dbg(us
, "Entering isd200_write_config\n");
767 usb_stor_dbg(us
, " Writing the following ISD200 Config Data:\n");
768 isd200_log_config(us
, info
);
771 /* let's send the command via the control pipe */
772 result
= usb_stor_ctrl_transfer(
776 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_OUT
,
779 (void *) &info
->ConfigData
,
780 sizeof(info
->ConfigData
));
783 usb_stor_dbg(us
, " ISD200 Config Data was written successfully\n");
785 usb_stor_dbg(us
, " Request to write ISD200 Config Data failed!\n");
786 retStatus
= ISD200_ERROR
;
789 usb_stor_dbg(us
, "Leaving isd200_write_config %08X\n", retStatus
);
794 /**************************************************************************
797 * Reads the ISD200 Configuration data
802 static int isd200_read_config( struct us_data
*us
)
804 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
805 int retStatus
= ISD200_GOOD
;
808 usb_stor_dbg(us
, "Entering isd200_read_config\n");
810 /* read the configuration information from ISD200. Use this to */
811 /* determine what the special ATA CDB bytes are. */
813 result
= usb_stor_ctrl_transfer(
817 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_IN
,
820 (void *) &info
->ConfigData
,
821 sizeof(info
->ConfigData
));
825 usb_stor_dbg(us
, " Retrieved the following ISD200 Config Data:\n");
826 #ifdef CONFIG_USB_STORAGE_DEBUG
827 isd200_log_config(us
, info
);
830 usb_stor_dbg(us
, " Request to get ISD200 Config Data failed!\n");
831 retStatus
= ISD200_ERROR
;
834 usb_stor_dbg(us
, "Leaving isd200_read_config %08X\n", retStatus
);
839 /**************************************************************************
840 * isd200_atapi_soft_reset
842 * Perform an Atapi Soft Reset on the device
847 static int isd200_atapi_soft_reset( struct us_data
*us
)
849 int retStatus
= ISD200_GOOD
;
852 usb_stor_dbg(us
, "Entering isd200_atapi_soft_reset\n");
854 transferStatus
= isd200_action( us
, ACTION_SOFT_RESET
, NULL
, 0 );
855 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
856 usb_stor_dbg(us
, " Error issuing Atapi Soft Reset\n");
857 retStatus
= ISD200_ERROR
;
860 usb_stor_dbg(us
, "Leaving isd200_atapi_soft_reset %08X\n", retStatus
);
865 /**************************************************************************
868 * Perform an SRST on the device
873 static int isd200_srst( struct us_data
*us
)
875 int retStatus
= ISD200_GOOD
;
878 usb_stor_dbg(us
, "Entering isd200_SRST\n");
880 transferStatus
= isd200_action( us
, ACTION_RESET
, NULL
, 0 );
882 /* check to see if this request failed */
883 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
884 usb_stor_dbg(us
, " Error issuing SRST\n");
885 retStatus
= ISD200_ERROR
;
887 /* delay 10ms to give the drive a chance to see it */
890 transferStatus
= isd200_action( us
, ACTION_REENABLE
, NULL
, 0 );
891 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
892 usb_stor_dbg(us
, " Error taking drive out of reset\n");
893 retStatus
= ISD200_ERROR
;
895 /* delay 50ms to give the drive a chance to recover after SRST */
900 usb_stor_dbg(us
, "Leaving isd200_srst %08X\n", retStatus
);
905 /**************************************************************************
908 * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS
909 * and tries to analyze the status registers
914 static int isd200_try_enum(struct us_data
*us
, unsigned char master_slave
,
917 int status
= ISD200_GOOD
;
918 unsigned long endTime
;
919 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
920 unsigned char *regs
= info
->RegsBuf
;
921 int recheckAsMaster
= 0;
924 endTime
= jiffies
+ ISD200_ENUM_DETECT_TIMEOUT
* HZ
;
926 endTime
= jiffies
+ ISD200_ENUM_BSY_TIMEOUT
* HZ
;
928 /* loop until we detect !BSY or timeout */
931 status
= isd200_action( us
, ACTION_ENUM
, NULL
, master_slave
);
932 if ( status
!= ISD200_GOOD
)
935 status
= isd200_action( us
, ACTION_READ_STATUS
,
937 if ( status
!= ISD200_GOOD
)
941 if (regs
[ATA_REG_STATUS_OFFSET
] & ATA_BUSY
) {
942 usb_stor_dbg(us
, " %s status is still BSY, try again...\n",
943 master_slave
== ATA_ADDRESS_DEVHEAD_STD
?
946 usb_stor_dbg(us
, " %s status !BSY, continue with next operation\n",
947 master_slave
== ATA_ADDRESS_DEVHEAD_STD
?
952 /* check for ATA_BUSY and */
953 /* ATA_DF (workaround ATA Zip drive) and */
954 /* ATA_ERR (workaround for Archos CD-ROM) */
955 else if (regs
[ATA_REG_STATUS_OFFSET
] &
956 (ATA_BUSY
| ATA_DF
| ATA_ERR
)) {
957 usb_stor_dbg(us
, " Status indicates it is not ready, try again...\n");
959 /* check for DRDY, ATA devices set DRDY after SRST */
960 else if (regs
[ATA_REG_STATUS_OFFSET
] & ATA_DRDY
) {
961 usb_stor_dbg(us
, " Identified ATA device\n");
962 info
->DeviceFlags
|= DF_ATA_DEVICE
;
963 info
->DeviceHead
= master_slave
;
966 /* check Cylinder High/Low to
967 determine if it is an ATAPI device
969 else if (regs
[ATA_REG_HCYL_OFFSET
] == 0xEB &&
970 regs
[ATA_REG_LCYL_OFFSET
] == 0x14) {
971 /* It seems that the RICOH
972 MP6200A CD/RW drive will
973 report itself okay as a
974 slave when it is really a
975 master. So this check again
976 as a master device just to
977 make sure it doesn't report
978 itself okay as a master also
980 if ((master_slave
& ATA_ADDRESS_DEVHEAD_SLAVE
) &&
982 usb_stor_dbg(us
, " Identified ATAPI device as slave. Rechecking again as master\n");
984 master_slave
= ATA_ADDRESS_DEVHEAD_STD
;
986 usb_stor_dbg(us
, " Identified ATAPI device\n");
987 info
->DeviceHead
= master_slave
;
989 status
= isd200_atapi_soft_reset(us
);
993 usb_stor_dbg(us
, " Not ATA, not ATAPI - Weird\n");
997 /* check for timeout on this request */
998 if (time_after_eq(jiffies
, endTime
)) {
1000 usb_stor_dbg(us
, " BSY check timeout, just continue with next operation...\n");
1002 usb_stor_dbg(us
, " Device detect timeout!\n");
1010 /**************************************************************************
1011 * isd200_manual_enum
1013 * Determines if the drive attached is an ATA or ATAPI and if it is a
1019 static int isd200_manual_enum(struct us_data
*us
)
1021 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
1022 int retStatus
= ISD200_GOOD
;
1024 usb_stor_dbg(us
, "Entering isd200_manual_enum\n");
1026 retStatus
= isd200_read_config(us
);
1027 if (retStatus
== ISD200_GOOD
) {
1029 /* master or slave? */
1030 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_STD
, 0);
1031 if (retStatus
== ISD200_GOOD
)
1032 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_SLAVE
, 0);
1034 if (retStatus
== ISD200_GOOD
) {
1035 retStatus
= isd200_srst(us
);
1036 if (retStatus
== ISD200_GOOD
)
1038 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_STD
, 1);
1041 isslave
= (info
->DeviceHead
& ATA_ADDRESS_DEVHEAD_SLAVE
) ? 1 : 0;
1042 if (!(info
->ConfigData
.ATAConfig
& ATACFG_MASTER
)) {
1043 usb_stor_dbg(us
, " Setting Master/Slave selection to %d\n",
1045 info
->ConfigData
.ATAConfig
&= 0x3f;
1046 info
->ConfigData
.ATAConfig
|= (isslave
<<6);
1047 retStatus
= isd200_write_config(us
);
1051 usb_stor_dbg(us
, "Leaving isd200_manual_enum %08X\n", retStatus
);
1055 static void isd200_fix_driveid(u16
*id
)
1057 #ifndef __LITTLE_ENDIAN
1058 # ifdef __BIG_ENDIAN
1061 for (i
= 0; i
< ATA_ID_WORDS
; i
++)
1062 id
[i
] = __le16_to_cpu(id
[i
]);
1064 # error "Please fix <asm/byteorder.h>"
1069 static void isd200_dump_driveid(struct us_data
*us
, u16
*id
)
1071 usb_stor_dbg(us
, " Identify Data Structure:\n");
1072 usb_stor_dbg(us
, " config = 0x%x\n", id
[ATA_ID_CONFIG
]);
1073 usb_stor_dbg(us
, " cyls = 0x%x\n", id
[ATA_ID_CYLS
]);
1074 usb_stor_dbg(us
, " heads = 0x%x\n", id
[ATA_ID_HEADS
]);
1075 usb_stor_dbg(us
, " track_bytes = 0x%x\n", id
[4]);
1076 usb_stor_dbg(us
, " sector_bytes = 0x%x\n", id
[5]);
1077 usb_stor_dbg(us
, " sectors = 0x%x\n", id
[ATA_ID_SECTORS
]);
1078 usb_stor_dbg(us
, " serial_no[0] = 0x%x\n", *(char *)&id
[ATA_ID_SERNO
]);
1079 usb_stor_dbg(us
, " buf_type = 0x%x\n", id
[20]);
1080 usb_stor_dbg(us
, " buf_size = 0x%x\n", id
[ATA_ID_BUF_SIZE
]);
1081 usb_stor_dbg(us
, " ecc_bytes = 0x%x\n", id
[22]);
1082 usb_stor_dbg(us
, " fw_rev[0] = 0x%x\n", *(char *)&id
[ATA_ID_FW_REV
]);
1083 usb_stor_dbg(us
, " model[0] = 0x%x\n", *(char *)&id
[ATA_ID_PROD
]);
1084 usb_stor_dbg(us
, " max_multsect = 0x%x\n", id
[ATA_ID_MAX_MULTSECT
] & 0xff);
1085 usb_stor_dbg(us
, " dword_io = 0x%x\n", id
[ATA_ID_DWORD_IO
]);
1086 usb_stor_dbg(us
, " capability = 0x%x\n", id
[ATA_ID_CAPABILITY
] >> 8);
1087 usb_stor_dbg(us
, " tPIO = 0x%x\n", id
[ATA_ID_OLD_PIO_MODES
] >> 8);
1088 usb_stor_dbg(us
, " tDMA = 0x%x\n", id
[ATA_ID_OLD_DMA_MODES
] >> 8);
1089 usb_stor_dbg(us
, " field_valid = 0x%x\n", id
[ATA_ID_FIELD_VALID
]);
1090 usb_stor_dbg(us
, " cur_cyls = 0x%x\n", id
[ATA_ID_CUR_CYLS
]);
1091 usb_stor_dbg(us
, " cur_heads = 0x%x\n", id
[ATA_ID_CUR_HEADS
]);
1092 usb_stor_dbg(us
, " cur_sectors = 0x%x\n", id
[ATA_ID_CUR_SECTORS
]);
1093 usb_stor_dbg(us
, " cur_capacity = 0x%x\n", ata_id_u32(id
, 57));
1094 usb_stor_dbg(us
, " multsect = 0x%x\n", id
[ATA_ID_MULTSECT
] & 0xff);
1095 usb_stor_dbg(us
, " lba_capacity = 0x%x\n", ata_id_u32(id
, ATA_ID_LBA_CAPACITY
));
1096 usb_stor_dbg(us
, " command_set_1 = 0x%x\n", id
[ATA_ID_COMMAND_SET_1
]);
1097 usb_stor_dbg(us
, " command_set_2 = 0x%x\n", id
[ATA_ID_COMMAND_SET_2
]);
1100 /**************************************************************************
1101 * isd200_get_inquiry_data
1108 static int isd200_get_inquiry_data( struct us_data
*us
)
1110 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
1111 int retStatus
= ISD200_GOOD
;
1114 usb_stor_dbg(us
, "Entering isd200_get_inquiry_data\n");
1116 /* set default to Master */
1117 info
->DeviceHead
= ATA_ADDRESS_DEVHEAD_STD
;
1119 /* attempt to manually enumerate this device */
1120 retStatus
= isd200_manual_enum(us
);
1121 if (retStatus
== ISD200_GOOD
) {
1124 /* check for an ATA device */
1125 if (info
->DeviceFlags
& DF_ATA_DEVICE
) {
1126 /* this must be an ATA device */
1127 /* perform an ATA Command Identify */
1128 transferStatus
= isd200_action( us
, ACTION_IDENTIFY
,
1129 id
, ATA_ID_WORDS
* 2);
1130 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
1131 /* Error issuing ATA Command Identify */
1132 usb_stor_dbg(us
, " Error issuing ATA Command Identify\n");
1133 retStatus
= ISD200_ERROR
;
1135 /* ATA Command Identify successful */
1140 isd200_fix_driveid(id
);
1141 isd200_dump_driveid(us
, id
);
1143 memset(&info
->InquiryData
, 0, sizeof(info
->InquiryData
));
1145 /* Standard IDE interface only supports disks */
1146 info
->InquiryData
.DeviceType
= DIRECT_ACCESS_DEVICE
;
1148 /* The length must be at least 36 (5 + 31) */
1149 info
->InquiryData
.AdditionalLength
= 0x1F;
1151 if (id
[ATA_ID_COMMAND_SET_1
] & COMMANDSET_MEDIA_STATUS
) {
1152 /* set the removable bit */
1153 info
->InquiryData
.DeviceTypeModifier
= DEVICE_REMOVABLE
;
1154 info
->DeviceFlags
|= DF_REMOVABLE_MEDIA
;
1157 /* Fill in vendor identification fields */
1158 src
= (__be16
*)&id
[ATA_ID_PROD
];
1159 dest
= (__u16
*)info
->InquiryData
.VendorId
;
1161 dest
[i
] = be16_to_cpu(src
[i
]);
1163 src
= (__be16
*)&id
[ATA_ID_PROD
+ 8/2];
1164 dest
= (__u16
*)info
->InquiryData
.ProductId
;
1166 dest
[i
] = be16_to_cpu(src
[i
]);
1168 src
= (__be16
*)&id
[ATA_ID_FW_REV
];
1169 dest
= (__u16
*)info
->InquiryData
.ProductRevisionLevel
;
1171 dest
[i
] = be16_to_cpu(src
[i
]);
1173 /* determine if it supports Media Status Notification */
1174 if (id
[ATA_ID_COMMAND_SET_2
] & COMMANDSET_MEDIA_STATUS
) {
1175 usb_stor_dbg(us
, " Device supports Media Status Notification\n");
1177 /* Indicate that it is enabled, even though it is not
1178 * This allows the lock/unlock of the media to work
1181 info
->DeviceFlags
|= DF_MEDIA_STATUS_ENABLED
;
1184 info
->DeviceFlags
&= ~DF_MEDIA_STATUS_ENABLED
;
1189 * this must be an ATAPI device
1190 * use an ATAPI protocol (Transparent SCSI)
1192 us
->protocol_name
= "Transparent SCSI";
1193 us
->proto_handler
= usb_stor_transparent_scsi_command
;
1195 usb_stor_dbg(us
, "Protocol changed to: %s\n",
1198 /* Free driver structure */
1199 us
->extra_destructor(info
);
1202 us
->extra_destructor
= NULL
;
1206 usb_stor_dbg(us
, "Leaving isd200_get_inquiry_data %08X\n", retStatus
);
1211 /**************************************************************************
1212 * isd200_scsi_to_ata
1214 * Translate SCSI commands to ATA commands.
1217 * 1 if the command needs to be sent to the transport layer
1220 static int isd200_scsi_to_ata(struct scsi_cmnd
*srb
, struct us_data
*us
,
1221 union ata_cdb
* ataCdb
)
1223 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
1225 int sendToTransport
= 1;
1226 unsigned char sectnum
, head
;
1227 unsigned short cylinder
;
1229 unsigned long blockCount
;
1230 unsigned char senseData
[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
1232 memset(ataCdb
, 0, sizeof(union ata_cdb
));
1235 switch (srb
->cmnd
[0]) {
1237 usb_stor_dbg(us
, " ATA OUT - INQUIRY\n");
1239 /* copy InquiryData */
1240 usb_stor_set_xfer_buf((unsigned char *) &info
->InquiryData
,
1241 sizeof(info
->InquiryData
), srb
);
1242 srb
->result
= SAM_STAT_GOOD
;
1243 sendToTransport
= 0;
1247 usb_stor_dbg(us
, " ATA OUT - SCSIOP_MODE_SENSE\n");
1249 /* Initialize the return buffer */
1250 usb_stor_set_xfer_buf(senseData
, sizeof(senseData
), srb
);
1252 if (info
->DeviceFlags
& DF_MEDIA_STATUS_ENABLED
)
1254 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1255 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1256 ataCdb
->generic
.TransferBlockSize
= 1;
1257 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1258 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1259 isd200_srb_set_bufflen(srb
, 0);
1261 usb_stor_dbg(us
, " Media Status not supported, just report okay\n");
1262 srb
->result
= SAM_STAT_GOOD
;
1263 sendToTransport
= 0;
1267 case TEST_UNIT_READY
:
1268 usb_stor_dbg(us
, " ATA OUT - SCSIOP_TEST_UNIT_READY\n");
1270 if (info
->DeviceFlags
& DF_MEDIA_STATUS_ENABLED
)
1272 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1273 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1274 ataCdb
->generic
.TransferBlockSize
= 1;
1275 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1276 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1277 isd200_srb_set_bufflen(srb
, 0);
1279 usb_stor_dbg(us
, " Media Status not supported, just report okay\n");
1280 srb
->result
= SAM_STAT_GOOD
;
1281 sendToTransport
= 0;
1287 unsigned long capacity
;
1288 struct read_capacity_data readCapacityData
;
1290 usb_stor_dbg(us
, " ATA OUT - SCSIOP_READ_CAPACITY\n");
1292 if (ata_id_has_lba(id
))
1293 capacity
= ata_id_u32(id
, ATA_ID_LBA_CAPACITY
) - 1;
1295 capacity
= (id
[ATA_ID_HEADS
] * id
[ATA_ID_CYLS
] *
1296 id
[ATA_ID_SECTORS
]) - 1;
1298 readCapacityData
.LogicalBlockAddress
= cpu_to_be32(capacity
);
1299 readCapacityData
.BytesPerBlock
= cpu_to_be32(0x200);
1301 usb_stor_set_xfer_buf((unsigned char *) &readCapacityData
,
1302 sizeof(readCapacityData
), srb
);
1303 srb
->result
= SAM_STAT_GOOD
;
1304 sendToTransport
= 0;
1309 usb_stor_dbg(us
, " ATA OUT - SCSIOP_READ\n");
1311 lba
= be32_to_cpu(*(__be32
*)&srb
->cmnd
[2]);
1312 blockCount
= (unsigned long)srb
->cmnd
[7]<<8 | (unsigned long)srb
->cmnd
[8];
1314 if (ata_id_has_lba(id
)) {
1315 sectnum
= (unsigned char)(lba
);
1316 cylinder
= (unsigned short)(lba
>>8);
1317 head
= ATA_ADDRESS_DEVHEAD_LBA_MODE
| (unsigned char)(lba
>>24 & 0x0F);
1319 sectnum
= (u8
)((lba
% id
[ATA_ID_SECTORS
]) + 1);
1320 cylinder
= (u16
)(lba
/ (id
[ATA_ID_SECTORS
] *
1322 head
= (u8
)((lba
/ id
[ATA_ID_SECTORS
]) %
1325 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1326 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1327 ataCdb
->generic
.TransferBlockSize
= 1;
1328 ataCdb
->generic
.RegisterSelect
=
1329 REG_SECTOR_COUNT
| REG_SECTOR_NUMBER
|
1330 REG_CYLINDER_LOW
| REG_CYLINDER_HIGH
|
1331 REG_DEVICE_HEAD
| REG_COMMAND
;
1332 ataCdb
->write
.SectorCountByte
= (unsigned char)blockCount
;
1333 ataCdb
->write
.SectorNumberByte
= sectnum
;
1334 ataCdb
->write
.CylinderHighByte
= (unsigned char)(cylinder
>>8);
1335 ataCdb
->write
.CylinderLowByte
= (unsigned char)cylinder
;
1336 ataCdb
->write
.DeviceHeadByte
= (head
| ATA_ADDRESS_DEVHEAD_STD
);
1337 ataCdb
->write
.CommandByte
= ATA_CMD_PIO_READ
;
1341 usb_stor_dbg(us
, " ATA OUT - SCSIOP_WRITE\n");
1343 lba
= be32_to_cpu(*(__be32
*)&srb
->cmnd
[2]);
1344 blockCount
= (unsigned long)srb
->cmnd
[7]<<8 | (unsigned long)srb
->cmnd
[8];
1346 if (ata_id_has_lba(id
)) {
1347 sectnum
= (unsigned char)(lba
);
1348 cylinder
= (unsigned short)(lba
>>8);
1349 head
= ATA_ADDRESS_DEVHEAD_LBA_MODE
| (unsigned char)(lba
>>24 & 0x0F);
1351 sectnum
= (u8
)((lba
% id
[ATA_ID_SECTORS
]) + 1);
1352 cylinder
= (u16
)(lba
/ (id
[ATA_ID_SECTORS
] *
1354 head
= (u8
)((lba
/ id
[ATA_ID_SECTORS
]) %
1357 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1358 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1359 ataCdb
->generic
.TransferBlockSize
= 1;
1360 ataCdb
->generic
.RegisterSelect
=
1361 REG_SECTOR_COUNT
| REG_SECTOR_NUMBER
|
1362 REG_CYLINDER_LOW
| REG_CYLINDER_HIGH
|
1363 REG_DEVICE_HEAD
| REG_COMMAND
;
1364 ataCdb
->write
.SectorCountByte
= (unsigned char)blockCount
;
1365 ataCdb
->write
.SectorNumberByte
= sectnum
;
1366 ataCdb
->write
.CylinderHighByte
= (unsigned char)(cylinder
>>8);
1367 ataCdb
->write
.CylinderLowByte
= (unsigned char)cylinder
;
1368 ataCdb
->write
.DeviceHeadByte
= (head
| ATA_ADDRESS_DEVHEAD_STD
);
1369 ataCdb
->write
.CommandByte
= ATA_CMD_PIO_WRITE
;
1372 case ALLOW_MEDIUM_REMOVAL
:
1373 usb_stor_dbg(us
, " ATA OUT - SCSIOP_MEDIUM_REMOVAL\n");
1375 if (info
->DeviceFlags
& DF_REMOVABLE_MEDIA
) {
1376 usb_stor_dbg(us
, " srb->cmnd[4] = 0x%X\n",
1379 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1380 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1381 ataCdb
->generic
.TransferBlockSize
= 1;
1382 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1383 ataCdb
->write
.CommandByte
= (srb
->cmnd
[4] & 0x1) ?
1384 ATA_CMD_MEDIA_LOCK
: ATA_CMD_MEDIA_UNLOCK
;
1385 isd200_srb_set_bufflen(srb
, 0);
1387 usb_stor_dbg(us
, " Not removeable media, just report okay\n");
1388 srb
->result
= SAM_STAT_GOOD
;
1389 sendToTransport
= 0;
1394 usb_stor_dbg(us
, " ATA OUT - SCSIOP_START_STOP_UNIT\n");
1395 usb_stor_dbg(us
, " srb->cmnd[4] = 0x%X\n", srb
->cmnd
[4]);
1397 if ((srb
->cmnd
[4] & 0x3) == 0x2) {
1398 usb_stor_dbg(us
, " Media Eject\n");
1399 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1400 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1401 ataCdb
->generic
.TransferBlockSize
= 0;
1402 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1403 ataCdb
->write
.CommandByte
= ATA_COMMAND_MEDIA_EJECT
;
1404 } else if ((srb
->cmnd
[4] & 0x3) == 0x1) {
1405 usb_stor_dbg(us
, " Get Media Status\n");
1406 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1407 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1408 ataCdb
->generic
.TransferBlockSize
= 1;
1409 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1410 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1411 isd200_srb_set_bufflen(srb
, 0);
1413 usb_stor_dbg(us
, " Nothing to do, just report okay\n");
1414 srb
->result
= SAM_STAT_GOOD
;
1415 sendToTransport
= 0;
1420 usb_stor_dbg(us
, "Unsupported SCSI command - 0x%X\n",
1422 srb
->result
= DID_ERROR
<< 16;
1423 sendToTransport
= 0;
1427 return(sendToTransport
);
1431 /**************************************************************************
1434 * Frees the driver structure.
1436 static void isd200_free_info_ptrs(void *info_
)
1438 struct isd200_info
*info
= (struct isd200_info
*) info_
;
1442 kfree(info
->RegsBuf
);
1443 kfree(info
->srb
.sense_buffer
);
1447 /**************************************************************************
1450 * Allocates (if necessary) and initializes the driver structure.
1455 static int isd200_init_info(struct us_data
*us
)
1457 int retStatus
= ISD200_GOOD
;
1458 struct isd200_info
*info
;
1460 info
= kzalloc(sizeof(struct isd200_info
), GFP_KERNEL
);
1462 retStatus
= ISD200_ERROR
;
1464 info
->id
= kzalloc(ATA_ID_WORDS
* 2, GFP_KERNEL
);
1465 info
->RegsBuf
= kmalloc(sizeof(info
->ATARegs
), GFP_KERNEL
);
1466 info
->srb
.sense_buffer
=
1467 kmalloc(SCSI_SENSE_BUFFERSIZE
, GFP_KERNEL
);
1468 if (!info
->id
|| !info
->RegsBuf
|| !info
->srb
.sense_buffer
) {
1469 isd200_free_info_ptrs(info
);
1471 retStatus
= ISD200_ERROR
;
1475 if (retStatus
== ISD200_GOOD
) {
1477 us
->extra_destructor
= isd200_free_info_ptrs
;
1483 /**************************************************************************
1484 * Initialization for the ISD200
1487 static int isd200_Initialization(struct us_data
*us
)
1489 usb_stor_dbg(us
, "ISD200 Initialization...\n");
1491 /* Initialize ISD200 info struct */
1493 if (isd200_init_info(us
) == ISD200_ERROR
) {
1494 usb_stor_dbg(us
, "ERROR Initializing ISD200 Info struct\n");
1496 /* Get device specific data */
1498 if (isd200_get_inquiry_data(us
) != ISD200_GOOD
)
1499 usb_stor_dbg(us
, "ISD200 Initialization Failure\n");
1501 usb_stor_dbg(us
, "ISD200 Initialization complete\n");
1508 /**************************************************************************
1509 * Protocol and Transport for the ISD200 ASIC
1511 * This protocol and transport are for ATA devices connected to an ISD200
1512 * ASIC. An ATAPI device that is connected as a slave device will be
1513 * detected in the driver initialization function and the protocol will
1514 * be changed to an ATAPI protocol (Transparent SCSI).
1518 static void isd200_ata_command(struct scsi_cmnd
*srb
, struct us_data
*us
)
1520 int sendToTransport
= 1, orig_bufflen
;
1521 union ata_cdb ataCdb
;
1523 /* Make sure driver was initialized */
1525 if (us
->extra
== NULL
)
1526 usb_stor_dbg(us
, "ERROR Driver not initialized\n");
1528 scsi_set_resid(srb
, 0);
1529 /* scsi_bufflen might change in protocol translation to ata */
1530 orig_bufflen
= scsi_bufflen(srb
);
1531 sendToTransport
= isd200_scsi_to_ata(srb
, us
, &ataCdb
);
1533 /* send the command to the transport layer */
1534 if (sendToTransport
)
1535 isd200_invoke_transport(us
, srb
, &ataCdb
);
1537 isd200_srb_set_bufflen(srb
, orig_bufflen
);
1540 static int isd200_probe(struct usb_interface
*intf
,
1541 const struct usb_device_id
*id
)
1546 result
= usb_stor_probe1(&us
, intf
, id
,
1547 (id
- isd200_usb_ids
) + isd200_unusual_dev_list
);
1551 us
->protocol_name
= "ISD200 ATA/ATAPI";
1552 us
->proto_handler
= isd200_ata_command
;
1554 result
= usb_stor_probe2(us
);
1558 static struct usb_driver isd200_driver
= {
1559 .name
= "ums-isd200",
1560 .probe
= isd200_probe
,
1561 .disconnect
= usb_stor_disconnect
,
1562 .suspend
= usb_stor_suspend
,
1563 .resume
= usb_stor_resume
,
1564 .reset_resume
= usb_stor_reset_resume
,
1565 .pre_reset
= usb_stor_pre_reset
,
1566 .post_reset
= usb_stor_post_reset
,
1567 .id_table
= isd200_usb_ids
,
1572 module_usb_driver(isd200_driver
);