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 US_DEBUGP(" 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 US_DEBUGP(" 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 US_DEBUGP(" 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 US_DEBUGP(" 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 US_DEBUGP(" 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 US_DEBUGP(" 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 US_DEBUGP("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 US_DEBUGP(" isd200_action(0x%02x) error: %d\n",action
,status
);
571 status
= ISD200_ERROR
;
572 /* need to reset device here */
578 /**************************************************************************
586 static int isd200_read_regs( struct us_data
*us
)
588 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
589 int retStatus
= ISD200_GOOD
;
592 US_DEBUGP("Entering isd200_IssueATAReadRegs\n");
594 transferStatus
= isd200_action( us
, ACTION_READ_STATUS
,
595 info
->RegsBuf
, sizeof(info
->ATARegs
) );
596 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
597 US_DEBUGP(" Error reading ATA registers\n");
598 retStatus
= ISD200_ERROR
;
600 memcpy(info
->ATARegs
, info
->RegsBuf
, sizeof(info
->ATARegs
));
601 US_DEBUGP(" Got ATA Register[ATA_REG_ERROR_OFFSET] = 0x%x\n",
602 info
->ATARegs
[ATA_REG_ERROR_OFFSET
]);
609 /**************************************************************************
610 * Invoke the transport and basic error-handling/recovery methods
612 * This is used by the protocol layers to actually send the message to
613 * the device and receive the response.
615 static void isd200_invoke_transport( struct us_data
*us
,
616 struct scsi_cmnd
*srb
,
617 union ata_cdb
*ataCdb
)
619 int need_auto_sense
= 0;
623 /* send the command to the transport layer */
624 memcpy(srb
->cmnd
, ataCdb
, sizeof(ataCdb
->generic
));
625 srb
->cmd_len
= sizeof(ataCdb
->generic
);
626 transferStatus
= usb_stor_Bulk_transport(srb
, us
);
628 /* if the command gets aborted by the higher layers, we need to
629 * short-circuit all other processing
631 if (test_bit(US_FLIDX_TIMED_OUT
, &us
->dflags
)) {
632 US_DEBUGP("-- command was aborted\n");
636 switch (transferStatus
) {
638 case USB_STOR_TRANSPORT_GOOD
:
639 /* Indicate a good result */
640 srb
->result
= SAM_STAT_GOOD
;
643 case USB_STOR_TRANSPORT_NO_SENSE
:
644 US_DEBUGP("-- transport indicates protocol failure\n");
645 srb
->result
= SAM_STAT_CHECK_CONDITION
;
648 case USB_STOR_TRANSPORT_FAILED
:
649 US_DEBUGP("-- transport indicates command failure\n");
653 case USB_STOR_TRANSPORT_ERROR
:
654 US_DEBUGP("-- transport indicates transport error\n");
655 srb
->result
= DID_ERROR
<< 16;
656 /* Need reset here */
660 US_DEBUGP("-- transport indicates unknown error\n");
661 srb
->result
= DID_ERROR
<< 16;
662 /* Need reset here */
666 if ((scsi_get_resid(srb
) > 0) &&
667 !((srb
->cmnd
[0] == REQUEST_SENSE
) ||
668 (srb
->cmnd
[0] == INQUIRY
) ||
669 (srb
->cmnd
[0] == MODE_SENSE
) ||
670 (srb
->cmnd
[0] == LOG_SENSE
) ||
671 (srb
->cmnd
[0] == MODE_SENSE_10
))) {
672 US_DEBUGP("-- unexpectedly short transfer\n");
676 if (need_auto_sense
) {
677 result
= isd200_read_regs(us
);
678 if (test_bit(US_FLIDX_TIMED_OUT
, &us
->dflags
)) {
679 US_DEBUGP("-- auto-sense aborted\n");
682 if (result
== ISD200_GOOD
) {
683 isd200_build_sense(us
, srb
);
684 srb
->result
= SAM_STAT_CHECK_CONDITION
;
686 /* If things are really okay, then let's show that */
687 if ((srb
->sense_buffer
[2] & 0xf) == 0x0)
688 srb
->result
= SAM_STAT_GOOD
;
690 srb
->result
= DID_ERROR
<< 16;
691 /* Need reset here */
695 /* Regardless of auto-sense, if we _know_ we have an error
696 * condition, show that in the result code
698 if (transferStatus
== USB_STOR_TRANSPORT_FAILED
)
699 srb
->result
= SAM_STAT_CHECK_CONDITION
;
702 /* abort processing: the bulk-only transport requires a reset
703 * following an abort */
705 srb
->result
= DID_ABORT
<< 16;
707 /* permit the reset transfer to take place */
708 clear_bit(US_FLIDX_ABORTING
, &us
->dflags
);
709 /* Need reset here */
712 #ifdef CONFIG_USB_STORAGE_DEBUG
713 static void isd200_log_config( struct isd200_info
* info
)
715 US_DEBUGP(" Event Notification: 0x%x\n",
716 info
->ConfigData
.EventNotification
);
717 US_DEBUGP(" External Clock: 0x%x\n",
718 info
->ConfigData
.ExternalClock
);
719 US_DEBUGP(" ATA Init Timeout: 0x%x\n",
720 info
->ConfigData
.ATAInitTimeout
);
721 US_DEBUGP(" ATAPI Command Block Size: 0x%x\n",
722 (info
->ConfigData
.ATAConfig
& ATACFG_BLOCKSIZE
) >> 6);
723 US_DEBUGP(" Master/Slave Selection: 0x%x\n",
724 info
->ConfigData
.ATAConfig
& ATACFG_MASTER
);
725 US_DEBUGP(" ATAPI Reset: 0x%x\n",
726 info
->ConfigData
.ATAConfig
& ATACFG_ATAPI_RESET
);
727 US_DEBUGP(" ATA Timing: 0x%x\n",
728 info
->ConfigData
.ATAConfig
& ATACFG_TIMING
);
729 US_DEBUGP(" ATA Major Command: 0x%x\n",
730 info
->ConfigData
.ATAMajorCommand
);
731 US_DEBUGP(" ATA Minor Command: 0x%x\n",
732 info
->ConfigData
.ATAMinorCommand
);
733 US_DEBUGP(" Init Status: 0x%x\n",
734 info
->ConfigData
.ATAExtraConfig
& ATACFGE_INIT_STATUS
);
735 US_DEBUGP(" Config Descriptor 2: 0x%x\n",
736 info
->ConfigData
.ATAExtraConfig
& ATACFGE_CONF_DESC2
);
737 US_DEBUGP(" Skip Device Boot: 0x%x\n",
738 info
->ConfigData
.ATAExtraConfig
& ATACFGE_SKIP_BOOT
);
739 US_DEBUGP(" ATA 3 State Supsend: 0x%x\n",
740 info
->ConfigData
.ATAExtraConfig
& ATACFGE_STATE_SUSPEND
);
741 US_DEBUGP(" Descriptor Override: 0x%x\n",
742 info
->ConfigData
.ATAExtraConfig
& ATACFGE_DESC_OVERRIDE
);
743 US_DEBUGP(" Last LUN Identifier: 0x%x\n",
744 info
->ConfigData
.ATAExtraConfig
& ATACFGE_LAST_LUN
);
745 US_DEBUGP(" SRST Enable: 0x%x\n",
746 info
->ConfigData
.ATAExtraConfig
& CFG_CAPABILITY_SRST
);
750 /**************************************************************************
751 * isd200_write_config
753 * Write the ISD200 Configuration data
758 static int isd200_write_config( struct us_data
*us
)
760 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
761 int retStatus
= ISD200_GOOD
;
764 #ifdef CONFIG_USB_STORAGE_DEBUG
765 US_DEBUGP("Entering isd200_write_config\n");
766 US_DEBUGP(" Writing the following ISD200 Config Data:\n");
767 isd200_log_config(info
);
770 /* let's send the command via the control pipe */
771 result
= usb_stor_ctrl_transfer(
775 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_OUT
,
778 (void *) &info
->ConfigData
,
779 sizeof(info
->ConfigData
));
782 US_DEBUGP(" ISD200 Config Data was written successfully\n");
784 US_DEBUGP(" Request to write ISD200 Config Data failed!\n");
785 retStatus
= ISD200_ERROR
;
788 US_DEBUGP("Leaving isd200_write_config %08X\n", retStatus
);
793 /**************************************************************************
796 * Reads the ISD200 Configuration data
801 static int isd200_read_config( struct us_data
*us
)
803 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
804 int retStatus
= ISD200_GOOD
;
807 US_DEBUGP("Entering isd200_read_config\n");
809 /* read the configuration information from ISD200. Use this to */
810 /* determine what the special ATA CDB bytes are. */
812 result
= usb_stor_ctrl_transfer(
816 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_IN
,
819 (void *) &info
->ConfigData
,
820 sizeof(info
->ConfigData
));
824 US_DEBUGP(" Retrieved the following ISD200 Config Data:\n");
825 #ifdef CONFIG_USB_STORAGE_DEBUG
826 isd200_log_config(info
);
829 US_DEBUGP(" Request to get ISD200 Config Data failed!\n");
830 retStatus
= ISD200_ERROR
;
833 US_DEBUGP("Leaving isd200_read_config %08X\n", retStatus
);
838 /**************************************************************************
839 * isd200_atapi_soft_reset
841 * Perform an Atapi Soft Reset on the device
846 static int isd200_atapi_soft_reset( struct us_data
*us
)
848 int retStatus
= ISD200_GOOD
;
851 US_DEBUGP("Entering isd200_atapi_soft_reset\n");
853 transferStatus
= isd200_action( us
, ACTION_SOFT_RESET
, NULL
, 0 );
854 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
855 US_DEBUGP(" Error issuing Atapi Soft Reset\n");
856 retStatus
= ISD200_ERROR
;
859 US_DEBUGP("Leaving isd200_atapi_soft_reset %08X\n", retStatus
);
864 /**************************************************************************
867 * Perform an SRST on the device
872 static int isd200_srst( struct us_data
*us
)
874 int retStatus
= ISD200_GOOD
;
877 US_DEBUGP("Entering isd200_SRST\n");
879 transferStatus
= isd200_action( us
, ACTION_RESET
, NULL
, 0 );
881 /* check to see if this request failed */
882 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
883 US_DEBUGP(" Error issuing SRST\n");
884 retStatus
= ISD200_ERROR
;
886 /* delay 10ms to give the drive a chance to see it */
889 transferStatus
= isd200_action( us
, ACTION_REENABLE
, NULL
, 0 );
890 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
891 US_DEBUGP(" Error taking drive out of reset\n");
892 retStatus
= ISD200_ERROR
;
894 /* delay 50ms to give the drive a chance to recover after SRST */
899 US_DEBUGP("Leaving isd200_srst %08X\n", retStatus
);
904 /**************************************************************************
907 * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS
908 * and tries to analyze the status registers
913 static int isd200_try_enum(struct us_data
*us
, unsigned char master_slave
,
916 int status
= ISD200_GOOD
;
917 unsigned long endTime
;
918 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
919 unsigned char *regs
= info
->RegsBuf
;
920 int recheckAsMaster
= 0;
923 endTime
= jiffies
+ ISD200_ENUM_DETECT_TIMEOUT
* HZ
;
925 endTime
= jiffies
+ ISD200_ENUM_BSY_TIMEOUT
* HZ
;
927 /* loop until we detect !BSY or timeout */
929 #ifdef CONFIG_USB_STORAGE_DEBUG
930 char* mstr
= master_slave
== ATA_ADDRESS_DEVHEAD_STD
?
934 status
= isd200_action( us
, ACTION_ENUM
, NULL
, master_slave
);
935 if ( status
!= ISD200_GOOD
)
938 status
= isd200_action( us
, ACTION_READ_STATUS
,
940 if ( status
!= ISD200_GOOD
)
944 if (regs
[ATA_REG_STATUS_OFFSET
] & ATA_BUSY
) {
945 US_DEBUGP(" %s status is still BSY, try again...\n",mstr
);
947 US_DEBUGP(" %s status !BSY, continue with next operation\n",mstr
);
951 /* check for ATA_BUSY and */
952 /* ATA_DF (workaround ATA Zip drive) and */
953 /* ATA_ERR (workaround for Archos CD-ROM) */
954 else if (regs
[ATA_REG_STATUS_OFFSET
] &
955 (ATA_BUSY
| ATA_DF
| ATA_ERR
)) {
956 US_DEBUGP(" Status indicates it is not ready, try again...\n");
958 /* check for DRDY, ATA devices set DRDY after SRST */
959 else if (regs
[ATA_REG_STATUS_OFFSET
] & ATA_DRDY
) {
960 US_DEBUGP(" Identified ATA device\n");
961 info
->DeviceFlags
|= DF_ATA_DEVICE
;
962 info
->DeviceHead
= master_slave
;
965 /* check Cylinder High/Low to
966 determine if it is an ATAPI device
968 else if (regs
[ATA_REG_HCYL_OFFSET
] == 0xEB &&
969 regs
[ATA_REG_LCYL_OFFSET
] == 0x14) {
970 /* It seems that the RICOH
971 MP6200A CD/RW drive will
972 report itself okay as a
973 slave when it is really a
974 master. So this check again
975 as a master device just to
976 make sure it doesn't report
977 itself okay as a master also
979 if ((master_slave
& ATA_ADDRESS_DEVHEAD_SLAVE
) &&
981 US_DEBUGP(" Identified ATAPI device as slave. Rechecking again as master\n");
983 master_slave
= ATA_ADDRESS_DEVHEAD_STD
;
985 US_DEBUGP(" Identified ATAPI device\n");
986 info
->DeviceHead
= master_slave
;
988 status
= isd200_atapi_soft_reset(us
);
992 US_DEBUGP(" Not ATA, not ATAPI. Weird.\n");
996 /* check for timeout on this request */
997 if (time_after_eq(jiffies
, endTime
)) {
999 US_DEBUGP(" BSY check timeout, just continue with next operation...\n");
1001 US_DEBUGP(" Device detect timeout!\n");
1009 /**************************************************************************
1010 * isd200_manual_enum
1012 * Determines if the drive attached is an ATA or ATAPI and if it is a
1018 static int isd200_manual_enum(struct us_data
*us
)
1020 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
1021 int retStatus
= ISD200_GOOD
;
1023 US_DEBUGP("Entering isd200_manual_enum\n");
1025 retStatus
= isd200_read_config(us
);
1026 if (retStatus
== ISD200_GOOD
) {
1028 /* master or slave? */
1029 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_STD
, 0);
1030 if (retStatus
== ISD200_GOOD
)
1031 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_SLAVE
, 0);
1033 if (retStatus
== ISD200_GOOD
) {
1034 retStatus
= isd200_srst(us
);
1035 if (retStatus
== ISD200_GOOD
)
1037 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_STD
, 1);
1040 isslave
= (info
->DeviceHead
& ATA_ADDRESS_DEVHEAD_SLAVE
) ? 1 : 0;
1041 if (!(info
->ConfigData
.ATAConfig
& ATACFG_MASTER
)) {
1042 US_DEBUGP(" Setting Master/Slave selection to %d\n", isslave
);
1043 info
->ConfigData
.ATAConfig
&= 0x3f;
1044 info
->ConfigData
.ATAConfig
|= (isslave
<<6);
1045 retStatus
= isd200_write_config(us
);
1049 US_DEBUGP("Leaving isd200_manual_enum %08X\n", retStatus
);
1053 static void isd200_fix_driveid(u16
*id
)
1055 #ifndef __LITTLE_ENDIAN
1056 # ifdef __BIG_ENDIAN
1059 for (i
= 0; i
< ATA_ID_WORDS
; i
++)
1060 id
[i
] = __le16_to_cpu(id
[i
]);
1062 # error "Please fix <asm/byteorder.h>"
1067 static void isd200_dump_driveid(u16
*id
)
1069 US_DEBUGP(" Identify Data Structure:\n");
1070 US_DEBUGP(" config = 0x%x\n", id
[ATA_ID_CONFIG
]);
1071 US_DEBUGP(" cyls = 0x%x\n", id
[ATA_ID_CYLS
]);
1072 US_DEBUGP(" heads = 0x%x\n", id
[ATA_ID_HEADS
]);
1073 US_DEBUGP(" track_bytes = 0x%x\n", id
[4]);
1074 US_DEBUGP(" sector_bytes = 0x%x\n", id
[5]);
1075 US_DEBUGP(" sectors = 0x%x\n", id
[ATA_ID_SECTORS
]);
1076 US_DEBUGP(" serial_no[0] = 0x%x\n", *(char *)&id
[ATA_ID_SERNO
]);
1077 US_DEBUGP(" buf_type = 0x%x\n", id
[20]);
1078 US_DEBUGP(" buf_size = 0x%x\n", id
[ATA_ID_BUF_SIZE
]);
1079 US_DEBUGP(" ecc_bytes = 0x%x\n", id
[22]);
1080 US_DEBUGP(" fw_rev[0] = 0x%x\n", *(char *)&id
[ATA_ID_FW_REV
]);
1081 US_DEBUGP(" model[0] = 0x%x\n", *(char *)&id
[ATA_ID_PROD
]);
1082 US_DEBUGP(" max_multsect = 0x%x\n", id
[ATA_ID_MAX_MULTSECT
] & 0xff);
1083 US_DEBUGP(" dword_io = 0x%x\n", id
[ATA_ID_DWORD_IO
]);
1084 US_DEBUGP(" capability = 0x%x\n", id
[ATA_ID_CAPABILITY
] >> 8);
1085 US_DEBUGP(" tPIO = 0x%x\n", id
[ATA_ID_OLD_PIO_MODES
] >> 8);
1086 US_DEBUGP(" tDMA = 0x%x\n", id
[ATA_ID_OLD_DMA_MODES
] >> 8);
1087 US_DEBUGP(" field_valid = 0x%x\n", id
[ATA_ID_FIELD_VALID
]);
1088 US_DEBUGP(" cur_cyls = 0x%x\n", id
[ATA_ID_CUR_CYLS
]);
1089 US_DEBUGP(" cur_heads = 0x%x\n", id
[ATA_ID_CUR_HEADS
]);
1090 US_DEBUGP(" cur_sectors = 0x%x\n", id
[ATA_ID_CUR_SECTORS
]);
1091 US_DEBUGP(" cur_capacity = 0x%x\n", ata_id_u32(id
, 57));
1092 US_DEBUGP(" multsect = 0x%x\n", id
[ATA_ID_MULTSECT
] & 0xff);
1093 US_DEBUGP(" lba_capacity = 0x%x\n", ata_id_u32(id
, ATA_ID_LBA_CAPACITY
));
1094 US_DEBUGP(" command_set_1 = 0x%x\n", id
[ATA_ID_COMMAND_SET_1
]);
1095 US_DEBUGP(" command_set_2 = 0x%x\n", id
[ATA_ID_COMMAND_SET_2
]);
1098 /**************************************************************************
1099 * isd200_get_inquiry_data
1106 static int isd200_get_inquiry_data( struct us_data
*us
)
1108 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
1109 int retStatus
= ISD200_GOOD
;
1112 US_DEBUGP("Entering isd200_get_inquiry_data\n");
1114 /* set default to Master */
1115 info
->DeviceHead
= ATA_ADDRESS_DEVHEAD_STD
;
1117 /* attempt to manually enumerate this device */
1118 retStatus
= isd200_manual_enum(us
);
1119 if (retStatus
== ISD200_GOOD
) {
1122 /* check for an ATA device */
1123 if (info
->DeviceFlags
& DF_ATA_DEVICE
) {
1124 /* this must be an ATA device */
1125 /* perform an ATA Command Identify */
1126 transferStatus
= isd200_action( us
, ACTION_IDENTIFY
,
1127 id
, ATA_ID_WORDS
* 2);
1128 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
1129 /* Error issuing ATA Command Identify */
1130 US_DEBUGP(" Error issuing ATA Command Identify\n");
1131 retStatus
= ISD200_ERROR
;
1133 /* ATA Command Identify successful */
1138 isd200_fix_driveid(id
);
1139 isd200_dump_driveid(id
);
1141 memset(&info
->InquiryData
, 0, sizeof(info
->InquiryData
));
1143 /* Standard IDE interface only supports disks */
1144 info
->InquiryData
.DeviceType
= DIRECT_ACCESS_DEVICE
;
1146 /* The length must be at least 36 (5 + 31) */
1147 info
->InquiryData
.AdditionalLength
= 0x1F;
1149 if (id
[ATA_ID_COMMAND_SET_1
] & COMMANDSET_MEDIA_STATUS
) {
1150 /* set the removable bit */
1151 info
->InquiryData
.DeviceTypeModifier
= DEVICE_REMOVABLE
;
1152 info
->DeviceFlags
|= DF_REMOVABLE_MEDIA
;
1155 /* Fill in vendor identification fields */
1156 src
= (__be16
*)&id
[ATA_ID_PROD
];
1157 dest
= (__u16
*)info
->InquiryData
.VendorId
;
1159 dest
[i
] = be16_to_cpu(src
[i
]);
1161 src
= (__be16
*)&id
[ATA_ID_PROD
+ 8/2];
1162 dest
= (__u16
*)info
->InquiryData
.ProductId
;
1164 dest
[i
] = be16_to_cpu(src
[i
]);
1166 src
= (__be16
*)&id
[ATA_ID_FW_REV
];
1167 dest
= (__u16
*)info
->InquiryData
.ProductRevisionLevel
;
1169 dest
[i
] = be16_to_cpu(src
[i
]);
1171 /* determine if it supports Media Status Notification */
1172 if (id
[ATA_ID_COMMAND_SET_2
] & COMMANDSET_MEDIA_STATUS
) {
1173 US_DEBUGP(" Device supports Media Status Notification\n");
1175 /* Indicate that it is enabled, even though it is not
1176 * This allows the lock/unlock of the media to work
1179 info
->DeviceFlags
|= DF_MEDIA_STATUS_ENABLED
;
1182 info
->DeviceFlags
&= ~DF_MEDIA_STATUS_ENABLED
;
1187 * this must be an ATAPI device
1188 * use an ATAPI protocol (Transparent SCSI)
1190 us
->protocol_name
= "Transparent SCSI";
1191 us
->proto_handler
= usb_stor_transparent_scsi_command
;
1193 US_DEBUGP("Protocol changed to: %s\n", us
->protocol_name
);
1195 /* Free driver structure */
1196 us
->extra_destructor(info
);
1199 us
->extra_destructor
= NULL
;
1203 US_DEBUGP("Leaving isd200_get_inquiry_data %08X\n", retStatus
);
1208 /**************************************************************************
1209 * isd200_scsi_to_ata
1211 * Translate SCSI commands to ATA commands.
1214 * 1 if the command needs to be sent to the transport layer
1217 static int isd200_scsi_to_ata(struct scsi_cmnd
*srb
, struct us_data
*us
,
1218 union ata_cdb
* ataCdb
)
1220 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
1222 int sendToTransport
= 1;
1223 unsigned char sectnum
, head
;
1224 unsigned short cylinder
;
1226 unsigned long blockCount
;
1227 unsigned char senseData
[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
1229 memset(ataCdb
, 0, sizeof(union ata_cdb
));
1232 switch (srb
->cmnd
[0]) {
1234 US_DEBUGP(" ATA OUT - INQUIRY\n");
1236 /* copy InquiryData */
1237 usb_stor_set_xfer_buf((unsigned char *) &info
->InquiryData
,
1238 sizeof(info
->InquiryData
), srb
);
1239 srb
->result
= SAM_STAT_GOOD
;
1240 sendToTransport
= 0;
1244 US_DEBUGP(" ATA OUT - SCSIOP_MODE_SENSE\n");
1246 /* Initialize the return buffer */
1247 usb_stor_set_xfer_buf(senseData
, sizeof(senseData
), srb
);
1249 if (info
->DeviceFlags
& DF_MEDIA_STATUS_ENABLED
)
1251 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1252 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1253 ataCdb
->generic
.TransferBlockSize
= 1;
1254 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1255 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1256 isd200_srb_set_bufflen(srb
, 0);
1258 US_DEBUGP(" Media Status not supported, just report okay\n");
1259 srb
->result
= SAM_STAT_GOOD
;
1260 sendToTransport
= 0;
1264 case TEST_UNIT_READY
:
1265 US_DEBUGP(" ATA OUT - SCSIOP_TEST_UNIT_READY\n");
1267 if (info
->DeviceFlags
& DF_MEDIA_STATUS_ENABLED
)
1269 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1270 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1271 ataCdb
->generic
.TransferBlockSize
= 1;
1272 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1273 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1274 isd200_srb_set_bufflen(srb
, 0);
1276 US_DEBUGP(" Media Status not supported, just report okay\n");
1277 srb
->result
= SAM_STAT_GOOD
;
1278 sendToTransport
= 0;
1284 unsigned long capacity
;
1285 struct read_capacity_data readCapacityData
;
1287 US_DEBUGP(" ATA OUT - SCSIOP_READ_CAPACITY\n");
1289 if (ata_id_has_lba(id
))
1290 capacity
= ata_id_u32(id
, ATA_ID_LBA_CAPACITY
) - 1;
1292 capacity
= (id
[ATA_ID_HEADS
] * id
[ATA_ID_CYLS
] *
1293 id
[ATA_ID_SECTORS
]) - 1;
1295 readCapacityData
.LogicalBlockAddress
= cpu_to_be32(capacity
);
1296 readCapacityData
.BytesPerBlock
= cpu_to_be32(0x200);
1298 usb_stor_set_xfer_buf((unsigned char *) &readCapacityData
,
1299 sizeof(readCapacityData
), srb
);
1300 srb
->result
= SAM_STAT_GOOD
;
1301 sendToTransport
= 0;
1306 US_DEBUGP(" ATA OUT - SCSIOP_READ\n");
1308 lba
= be32_to_cpu(*(__be32
*)&srb
->cmnd
[2]);
1309 blockCount
= (unsigned long)srb
->cmnd
[7]<<8 | (unsigned long)srb
->cmnd
[8];
1311 if (ata_id_has_lba(id
)) {
1312 sectnum
= (unsigned char)(lba
);
1313 cylinder
= (unsigned short)(lba
>>8);
1314 head
= ATA_ADDRESS_DEVHEAD_LBA_MODE
| (unsigned char)(lba
>>24 & 0x0F);
1316 sectnum
= (u8
)((lba
% id
[ATA_ID_SECTORS
]) + 1);
1317 cylinder
= (u16
)(lba
/ (id
[ATA_ID_SECTORS
] *
1319 head
= (u8
)((lba
/ id
[ATA_ID_SECTORS
]) %
1322 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1323 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1324 ataCdb
->generic
.TransferBlockSize
= 1;
1325 ataCdb
->generic
.RegisterSelect
=
1326 REG_SECTOR_COUNT
| REG_SECTOR_NUMBER
|
1327 REG_CYLINDER_LOW
| REG_CYLINDER_HIGH
|
1328 REG_DEVICE_HEAD
| REG_COMMAND
;
1329 ataCdb
->write
.SectorCountByte
= (unsigned char)blockCount
;
1330 ataCdb
->write
.SectorNumberByte
= sectnum
;
1331 ataCdb
->write
.CylinderHighByte
= (unsigned char)(cylinder
>>8);
1332 ataCdb
->write
.CylinderLowByte
= (unsigned char)cylinder
;
1333 ataCdb
->write
.DeviceHeadByte
= (head
| ATA_ADDRESS_DEVHEAD_STD
);
1334 ataCdb
->write
.CommandByte
= ATA_CMD_PIO_READ
;
1338 US_DEBUGP(" ATA OUT - SCSIOP_WRITE\n");
1340 lba
= be32_to_cpu(*(__be32
*)&srb
->cmnd
[2]);
1341 blockCount
= (unsigned long)srb
->cmnd
[7]<<8 | (unsigned long)srb
->cmnd
[8];
1343 if (ata_id_has_lba(id
)) {
1344 sectnum
= (unsigned char)(lba
);
1345 cylinder
= (unsigned short)(lba
>>8);
1346 head
= ATA_ADDRESS_DEVHEAD_LBA_MODE
| (unsigned char)(lba
>>24 & 0x0F);
1348 sectnum
= (u8
)((lba
% id
[ATA_ID_SECTORS
]) + 1);
1349 cylinder
= (u16
)(lba
/ (id
[ATA_ID_SECTORS
] *
1351 head
= (u8
)((lba
/ id
[ATA_ID_SECTORS
]) %
1354 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1355 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1356 ataCdb
->generic
.TransferBlockSize
= 1;
1357 ataCdb
->generic
.RegisterSelect
=
1358 REG_SECTOR_COUNT
| REG_SECTOR_NUMBER
|
1359 REG_CYLINDER_LOW
| REG_CYLINDER_HIGH
|
1360 REG_DEVICE_HEAD
| REG_COMMAND
;
1361 ataCdb
->write
.SectorCountByte
= (unsigned char)blockCount
;
1362 ataCdb
->write
.SectorNumberByte
= sectnum
;
1363 ataCdb
->write
.CylinderHighByte
= (unsigned char)(cylinder
>>8);
1364 ataCdb
->write
.CylinderLowByte
= (unsigned char)cylinder
;
1365 ataCdb
->write
.DeviceHeadByte
= (head
| ATA_ADDRESS_DEVHEAD_STD
);
1366 ataCdb
->write
.CommandByte
= ATA_CMD_PIO_WRITE
;
1369 case ALLOW_MEDIUM_REMOVAL
:
1370 US_DEBUGP(" ATA OUT - SCSIOP_MEDIUM_REMOVAL\n");
1372 if (info
->DeviceFlags
& DF_REMOVABLE_MEDIA
) {
1373 US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb
->cmnd
[4]);
1375 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1376 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1377 ataCdb
->generic
.TransferBlockSize
= 1;
1378 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1379 ataCdb
->write
.CommandByte
= (srb
->cmnd
[4] & 0x1) ?
1380 ATA_CMD_MEDIA_LOCK
: ATA_CMD_MEDIA_UNLOCK
;
1381 isd200_srb_set_bufflen(srb
, 0);
1383 US_DEBUGP(" Not removeable media, just report okay\n");
1384 srb
->result
= SAM_STAT_GOOD
;
1385 sendToTransport
= 0;
1390 US_DEBUGP(" ATA OUT - SCSIOP_START_STOP_UNIT\n");
1391 US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb
->cmnd
[4]);
1393 if ((srb
->cmnd
[4] & 0x3) == 0x2) {
1394 US_DEBUGP(" Media Eject\n");
1395 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1396 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1397 ataCdb
->generic
.TransferBlockSize
= 0;
1398 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1399 ataCdb
->write
.CommandByte
= ATA_COMMAND_MEDIA_EJECT
;
1400 } else if ((srb
->cmnd
[4] & 0x3) == 0x1) {
1401 US_DEBUGP(" Get Media Status\n");
1402 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1403 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1404 ataCdb
->generic
.TransferBlockSize
= 1;
1405 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1406 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1407 isd200_srb_set_bufflen(srb
, 0);
1409 US_DEBUGP(" Nothing to do, just report okay\n");
1410 srb
->result
= SAM_STAT_GOOD
;
1411 sendToTransport
= 0;
1416 US_DEBUGP("Unsupported SCSI command - 0x%X\n", srb
->cmnd
[0]);
1417 srb
->result
= DID_ERROR
<< 16;
1418 sendToTransport
= 0;
1422 return(sendToTransport
);
1426 /**************************************************************************
1429 * Frees the driver structure.
1431 static void isd200_free_info_ptrs(void *info_
)
1433 struct isd200_info
*info
= (struct isd200_info
*) info_
;
1437 kfree(info
->RegsBuf
);
1438 kfree(info
->srb
.sense_buffer
);
1442 /**************************************************************************
1445 * Allocates (if necessary) and initializes the driver structure.
1450 static int isd200_init_info(struct us_data
*us
)
1452 int retStatus
= ISD200_GOOD
;
1453 struct isd200_info
*info
;
1455 info
= kzalloc(sizeof(struct isd200_info
), GFP_KERNEL
);
1457 retStatus
= ISD200_ERROR
;
1459 info
->id
= kzalloc(ATA_ID_WORDS
* 2, GFP_KERNEL
);
1460 info
->RegsBuf
= (unsigned char *)
1461 kmalloc(sizeof(info
->ATARegs
), GFP_KERNEL
);
1462 info
->srb
.sense_buffer
=
1463 kmalloc(SCSI_SENSE_BUFFERSIZE
, GFP_KERNEL
);
1464 if (!info
->id
|| !info
->RegsBuf
|| !info
->srb
.sense_buffer
) {
1465 isd200_free_info_ptrs(info
);
1467 retStatus
= ISD200_ERROR
;
1471 if (retStatus
== ISD200_GOOD
) {
1473 us
->extra_destructor
= isd200_free_info_ptrs
;
1475 US_DEBUGP("ERROR - kmalloc failure\n");
1480 /**************************************************************************
1481 * Initialization for the ISD200
1484 static int isd200_Initialization(struct us_data
*us
)
1486 US_DEBUGP("ISD200 Initialization...\n");
1488 /* Initialize ISD200 info struct */
1490 if (isd200_init_info(us
) == ISD200_ERROR
) {
1491 US_DEBUGP("ERROR Initializing ISD200 Info struct\n");
1493 /* Get device specific data */
1495 if (isd200_get_inquiry_data(us
) != ISD200_GOOD
)
1496 US_DEBUGP("ISD200 Initialization Failure\n");
1498 US_DEBUGP("ISD200 Initialization complete\n");
1505 /**************************************************************************
1506 * Protocol and Transport for the ISD200 ASIC
1508 * This protocol and transport are for ATA devices connected to an ISD200
1509 * ASIC. An ATAPI device that is connected as a slave device will be
1510 * detected in the driver initialization function and the protocol will
1511 * be changed to an ATAPI protocol (Transparent SCSI).
1515 static void isd200_ata_command(struct scsi_cmnd
*srb
, struct us_data
*us
)
1517 int sendToTransport
= 1, orig_bufflen
;
1518 union ata_cdb ataCdb
;
1520 /* Make sure driver was initialized */
1522 if (us
->extra
== NULL
)
1523 US_DEBUGP("ERROR Driver not initialized\n");
1525 scsi_set_resid(srb
, 0);
1526 /* scsi_bufflen might change in protocol translation to ata */
1527 orig_bufflen
= scsi_bufflen(srb
);
1528 sendToTransport
= isd200_scsi_to_ata(srb
, us
, &ataCdb
);
1530 /* send the command to the transport layer */
1531 if (sendToTransport
)
1532 isd200_invoke_transport(us
, srb
, &ataCdb
);
1534 isd200_srb_set_bufflen(srb
, orig_bufflen
);
1537 static int isd200_probe(struct usb_interface
*intf
,
1538 const struct usb_device_id
*id
)
1543 result
= usb_stor_probe1(&us
, intf
, id
,
1544 (id
- isd200_usb_ids
) + isd200_unusual_dev_list
);
1548 us
->protocol_name
= "ISD200 ATA/ATAPI";
1549 us
->proto_handler
= isd200_ata_command
;
1551 result
= usb_stor_probe2(us
);
1555 static struct usb_driver isd200_driver
= {
1556 .name
= "ums-isd200",
1557 .probe
= isd200_probe
,
1558 .disconnect
= usb_stor_disconnect
,
1559 .suspend
= usb_stor_suspend
,
1560 .resume
= usb_stor_resume
,
1561 .reset_resume
= usb_stor_reset_resume
,
1562 .pre_reset
= usb_stor_pre_reset
,
1563 .post_reset
= usb_stor_post_reset
,
1564 .id_table
= isd200_usb_ids
,
1569 module_usb_driver(isd200_driver
);