1 /* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC
3 * $Id: isd200.c,v 1.16 2002/04/22 03:39:43 mdharm Exp $
5 * Current development and maintenance:
6 * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se)
8 * Developed with the assistance of:
9 * (C) 2002 Alan Stern <stern@rowland.org>
12 * (C) 2000 In-System Design, Inc. (support@in-system.com)
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.
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
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.
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.
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.
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.
47 #include <linux/jiffies.h>
48 #include <linux/errno.h>
49 #include <linux/slab.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"
65 /* Timeout defines (in Seconds) */
67 #define ISD200_ENUM_BSY_TIMEOUT 35
68 #define ISD200_ENUM_DETECT_TIMEOUT 30
69 #define ISD200_DEFAULT_TIMEOUT 30
72 #define DF_ATA_DEVICE 0x0001
73 #define DF_MEDIA_STATUS_ENABLED 0x0002
74 #define DF_REMOVABLE_MEDIA 0x0004
76 /* capability bit definitions */
77 #define CAPABILITY_DMA 0x01
78 #define CAPABILITY_LBA 0x02
80 /* command_setX bit definitions */
81 #define COMMANDSET_REMOVABLE 0x02
82 #define COMMANDSET_MEDIA_STATUS 0x10
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
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
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
112 /* ATA registers offset definitions */
113 #define ATA_REG_ERROR_OFFSET 1
114 #define ATA_REG_LCYL_OFFSET 4
115 #define ATA_REG_HCYL_OFFSET 5
116 #define ATA_REG_STATUS_OFFSET 7
118 /* ATA error definitions not in <linux/hdreg.h> */
119 #define ATA_ERROR_MEDIA_CHANGE 0x20
121 /* ATA command definitions not in <linux/hdreg.h> */
122 #define ATA_COMMAND_GET_MEDIA_STATUS 0xDA
123 #define ATA_COMMAND_MEDIA_EJECT 0xED
125 /* ATA drive control definitions */
126 #define ATA_DC_DISABLE_INTERRUPTS 0x02
127 #define ATA_DC_RESET_CONTROLLER 0x04
128 #define ATA_DC_REENABLE_CONTROLLER 0x00
131 * General purpose return codes
134 #define ISD200_ERROR -1
135 #define ISD200_GOOD 0
138 * Transport return codes
141 #define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */
142 #define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */
143 #define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */
145 /* driver action codes */
146 #define ACTION_READ_STATUS 0
147 #define ACTION_RESET 1
148 #define ACTION_REENABLE 2
149 #define ACTION_SOFT_RESET 3
150 #define ACTION_ENUM 4
151 #define ACTION_IDENTIFY 5
161 unsigned char SignatureByte0
;
162 unsigned char SignatureByte1
;
163 unsigned char ActionSelect
;
164 unsigned char RegisterSelect
;
165 unsigned char TransferBlockSize
;
166 unsigned char WriteData3F6
;
167 unsigned char WriteData1F1
;
168 unsigned char WriteData1F2
;
169 unsigned char WriteData1F3
;
170 unsigned char WriteData1F4
;
171 unsigned char WriteData1F5
;
172 unsigned char WriteData1F6
;
173 unsigned char WriteData1F7
;
174 unsigned char Reserved
[3];
178 unsigned char SignatureByte0
;
179 unsigned char SignatureByte1
;
180 unsigned char ActionSelect
;
181 unsigned char RegisterSelect
;
182 unsigned char TransferBlockSize
;
183 unsigned char AlternateStatusByte
;
184 unsigned char ErrorByte
;
185 unsigned char SectorCountByte
;
186 unsigned char SectorNumberByte
;
187 unsigned char CylinderLowByte
;
188 unsigned char CylinderHighByte
;
189 unsigned char DeviceHeadByte
;
190 unsigned char StatusByte
;
191 unsigned char Reserved
[3];
195 unsigned char SignatureByte0
;
196 unsigned char SignatureByte1
;
197 unsigned char ActionSelect
;
198 unsigned char RegisterSelect
;
199 unsigned char TransferBlockSize
;
200 unsigned char DeviceControlByte
;
201 unsigned char FeaturesByte
;
202 unsigned char SectorCountByte
;
203 unsigned char SectorNumberByte
;
204 unsigned char CylinderLowByte
;
205 unsigned char CylinderHighByte
;
206 unsigned char DeviceHeadByte
;
207 unsigned char CommandByte
;
208 unsigned char Reserved
[3];
214 * Inquiry data structure. This is the data returned from the target
215 * after it receives an inquiry.
217 * This structure may be extended by the number of bytes specified
218 * in the field AdditionalLength. The defined size constant only
219 * includes fields through ProductRevisionLevel.
225 #define DIRECT_ACCESS_DEVICE 0x00 /* disks */
226 #define DEVICE_REMOVABLE 0x80
228 struct inquiry_data
{
229 unsigned char DeviceType
;
230 unsigned char DeviceTypeModifier
;
231 unsigned char Versions
;
232 unsigned char Format
;
233 unsigned char AdditionalLength
;
234 unsigned char Reserved
[2];
235 unsigned char Capability
;
236 unsigned char VendorId
[8];
237 unsigned char ProductId
[16];
238 unsigned char ProductRevisionLevel
[4];
239 unsigned char VendorSpecific
[20];
240 unsigned char Reserved3
[40];
241 } __attribute__ ((packed
));
244 * INQUIRY data buffer size
247 #define INQUIRYDATABUFFERSIZE 36
251 * ISD200 CONFIG data struct
254 #define ATACFG_TIMING 0x0f
255 #define ATACFG_ATAPI_RESET 0x10
256 #define ATACFG_MASTER 0x20
257 #define ATACFG_BLOCKSIZE 0xa0
259 #define ATACFGE_LAST_LUN 0x07
260 #define ATACFGE_DESC_OVERRIDE 0x08
261 #define ATACFGE_STATE_SUSPEND 0x10
262 #define ATACFGE_SKIP_BOOT 0x20
263 #define ATACFGE_CONF_DESC2 0x40
264 #define ATACFGE_INIT_STATUS 0x80
266 #define CFG_CAPABILITY_SRST 0x01
268 struct isd200_config
{
269 unsigned char EventNotification
;
270 unsigned char ExternalClock
;
271 unsigned char ATAInitTimeout
;
272 unsigned char ATAConfig
;
273 unsigned char ATAMajorCommand
;
274 unsigned char ATAMinorCommand
;
275 unsigned char ATAExtraConfig
;
276 unsigned char Capability
;
277 }__attribute__ ((packed
));
281 * ISD200 driver information struct
285 struct inquiry_data InquiryData
;
286 struct hd_driveid
*id
;
287 struct isd200_config ConfigData
;
288 unsigned char *RegsBuf
;
289 unsigned char ATARegs
[8];
290 unsigned char DeviceHead
;
291 unsigned char DeviceFlags
;
293 /* maximum number of LUNs supported */
294 unsigned char MaxLUNs
;
295 struct scsi_cmnd srb
;
296 struct scatterlist sg
;
301 * Read Capacity Data - returned in Big Endian format
304 struct read_capacity_data
{
305 __be32 LogicalBlockAddress
;
306 __be32 BytesPerBlock
;
310 * Read Block Limits Data - returned in Big Endian format
311 * This structure returns the maximum and minimum block
312 * size for a TAPE device.
315 struct read_block_limits
{
316 unsigned char Reserved
;
317 unsigned char BlockMaximumSize
[3];
318 unsigned char BlockMinimumSize
[2];
326 #define SENSE_ERRCODE 0x7f
327 #define SENSE_ERRCODE_VALID 0x80
328 #define SENSE_FLAG_SENSE_KEY 0x0f
329 #define SENSE_FLAG_BAD_LENGTH 0x20
330 #define SENSE_FLAG_END_OF_MEDIA 0x40
331 #define SENSE_FLAG_FILE_MARK 0x80
333 unsigned char ErrorCode
;
334 unsigned char SegmentNumber
;
336 unsigned char Information
[4];
337 unsigned char AdditionalSenseLength
;
338 unsigned char CommandSpecificInformation
[4];
339 unsigned char AdditionalSenseCode
;
340 unsigned char AdditionalSenseCodeQualifier
;
341 unsigned char FieldReplaceableUnitCode
;
342 unsigned char SenseKeySpecific
[3];
343 } __attribute__ ((packed
));
346 * Default request sense buffer size
349 #define SENSE_BUFFER_SIZE 18
351 /***********************************************************************
353 ***********************************************************************/
355 /**************************************************************************
358 * Builds an artificial sense buffer to report the results of a
364 static void isd200_build_sense(struct us_data
*us
, struct scsi_cmnd
*srb
)
366 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
367 struct sense_data
*buf
= (struct sense_data
*) &srb
->sense_buffer
[0];
368 unsigned char error
= info
->ATARegs
[ATA_REG_ERROR_OFFSET
];
370 if(error
& ATA_ERROR_MEDIA_CHANGE
) {
371 buf
->ErrorCode
= 0x70 | SENSE_ERRCODE_VALID
;
372 buf
->AdditionalSenseLength
= 0xb;
373 buf
->Flags
= UNIT_ATTENTION
;
374 buf
->AdditionalSenseCode
= 0;
375 buf
->AdditionalSenseCodeQualifier
= 0;
376 } else if(error
& MCR_ERR
) {
377 buf
->ErrorCode
= 0x70 | SENSE_ERRCODE_VALID
;
378 buf
->AdditionalSenseLength
= 0xb;
379 buf
->Flags
= UNIT_ATTENTION
;
380 buf
->AdditionalSenseCode
= 0;
381 buf
->AdditionalSenseCodeQualifier
= 0;
382 } else if(error
& TRK0_ERR
) {
383 buf
->ErrorCode
= 0x70 | SENSE_ERRCODE_VALID
;
384 buf
->AdditionalSenseLength
= 0xb;
385 buf
->Flags
= NOT_READY
;
386 buf
->AdditionalSenseCode
= 0;
387 buf
->AdditionalSenseCodeQualifier
= 0;
388 } else if(error
& ECC_ERR
) {
389 buf
->ErrorCode
= 0x70 | SENSE_ERRCODE_VALID
;
390 buf
->AdditionalSenseLength
= 0xb;
391 buf
->Flags
= DATA_PROTECT
;
392 buf
->AdditionalSenseCode
= 0;
393 buf
->AdditionalSenseCodeQualifier
= 0;
396 buf
->AdditionalSenseLength
= 0;
398 buf
->AdditionalSenseCode
= 0;
399 buf
->AdditionalSenseCodeQualifier
= 0;
404 /***********************************************************************
406 ***********************************************************************/
408 /**************************************************************************
409 * isd200_set_srb(), isd200_srb_set_bufflen()
411 * Two helpers to facilitate in initialization of scsi_cmnd structure
412 * Will need to change when struct scsi_cmnd changes
414 static void isd200_set_srb(struct isd200_info
*info
,
415 enum dma_data_direction dir
, void* buff
, unsigned bufflen
)
417 struct scsi_cmnd
*srb
= &info
->srb
;
420 sg_init_one(&info
->sg
, buff
, bufflen
);
422 srb
->sc_data_direction
= dir
;
423 srb
->sdb
.table
.sgl
= buff
? &info
->sg
: NULL
;
424 srb
->sdb
.length
= bufflen
;
425 srb
->sdb
.table
.nents
= buff
? 1 : 0;
428 static void isd200_srb_set_bufflen(struct scsi_cmnd
*srb
, unsigned bufflen
)
430 srb
->sdb
.length
= bufflen
;
434 /**************************************************************************
437 * Routine for sending commands to the isd200
442 static int isd200_action( struct us_data
*us
, int action
,
443 void* pointer
, int value
)
446 struct scsi_device srb_dev
;
447 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
448 struct scsi_cmnd
*srb
= &info
->srb
;
451 memset(&ata
, 0, sizeof(ata
));
452 memset(&srb_dev
, 0, sizeof(srb_dev
));
453 srb
->device
= &srb_dev
;
454 ++srb
->serial_number
;
456 ata
.generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
457 ata
.generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
458 ata
.generic
.TransferBlockSize
= 1;
461 case ACTION_READ_STATUS
:
462 US_DEBUGP(" isd200_action(READ_STATUS)\n");
463 ata
.generic
.ActionSelect
= ACTION_SELECT_0
|ACTION_SELECT_2
;
464 ata
.generic
.RegisterSelect
=
465 REG_CYLINDER_LOW
| REG_CYLINDER_HIGH
|
466 REG_STATUS
| REG_ERROR
;
467 isd200_set_srb(info
, DMA_FROM_DEVICE
, pointer
, value
);
471 US_DEBUGP(" isd200_action(ENUM,0x%02x)\n",value
);
472 ata
.generic
.ActionSelect
= ACTION_SELECT_1
|ACTION_SELECT_2
|
473 ACTION_SELECT_3
|ACTION_SELECT_4
|
475 ata
.generic
.RegisterSelect
= REG_DEVICE_HEAD
;
476 ata
.write
.DeviceHeadByte
= value
;
477 isd200_set_srb(info
, DMA_NONE
, NULL
, 0);
481 US_DEBUGP(" isd200_action(RESET)\n");
482 ata
.generic
.ActionSelect
= ACTION_SELECT_1
|ACTION_SELECT_2
|
483 ACTION_SELECT_3
|ACTION_SELECT_4
;
484 ata
.generic
.RegisterSelect
= REG_DEVICE_CONTROL
;
485 ata
.write
.DeviceControlByte
= ATA_DC_RESET_CONTROLLER
;
486 isd200_set_srb(info
, DMA_NONE
, NULL
, 0);
489 case ACTION_REENABLE
:
490 US_DEBUGP(" isd200_action(REENABLE)\n");
491 ata
.generic
.ActionSelect
= ACTION_SELECT_1
|ACTION_SELECT_2
|
492 ACTION_SELECT_3
|ACTION_SELECT_4
;
493 ata
.generic
.RegisterSelect
= REG_DEVICE_CONTROL
;
494 ata
.write
.DeviceControlByte
= ATA_DC_REENABLE_CONTROLLER
;
495 isd200_set_srb(info
, DMA_NONE
, NULL
, 0);
498 case ACTION_SOFT_RESET
:
499 US_DEBUGP(" isd200_action(SOFT_RESET)\n");
500 ata
.generic
.ActionSelect
= ACTION_SELECT_1
|ACTION_SELECT_5
;
501 ata
.generic
.RegisterSelect
= REG_DEVICE_HEAD
| REG_COMMAND
;
502 ata
.write
.DeviceHeadByte
= info
->DeviceHead
;
503 ata
.write
.CommandByte
= WIN_SRST
;
504 isd200_set_srb(info
, DMA_NONE
, NULL
, 0);
507 case ACTION_IDENTIFY
:
508 US_DEBUGP(" isd200_action(IDENTIFY)\n");
509 ata
.generic
.RegisterSelect
= REG_COMMAND
;
510 ata
.write
.CommandByte
= WIN_IDENTIFY
;
511 isd200_set_srb(info
, DMA_FROM_DEVICE
, info
->id
,
512 sizeof(struct hd_driveid
));
516 US_DEBUGP("Error: Undefined action %d\n",action
);
520 memcpy(srb
->cmnd
, &ata
, sizeof(ata
.generic
));
521 srb
->cmd_len
= sizeof(ata
.generic
);
522 status
= usb_stor_Bulk_transport(srb
, us
);
523 if (status
== USB_STOR_TRANSPORT_GOOD
)
524 status
= ISD200_GOOD
;
526 US_DEBUGP(" isd200_action(0x%02x) error: %d\n",action
,status
);
527 status
= ISD200_ERROR
;
528 /* need to reset device here */
534 /**************************************************************************
542 static int isd200_read_regs( struct us_data
*us
)
544 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
545 int retStatus
= ISD200_GOOD
;
548 US_DEBUGP("Entering isd200_IssueATAReadRegs\n");
550 transferStatus
= isd200_action( us
, ACTION_READ_STATUS
,
551 info
->RegsBuf
, sizeof(info
->ATARegs
) );
552 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
553 US_DEBUGP(" Error reading ATA registers\n");
554 retStatus
= ISD200_ERROR
;
556 memcpy(info
->ATARegs
, info
->RegsBuf
, sizeof(info
->ATARegs
));
557 US_DEBUGP(" Got ATA Register[ATA_REG_ERROR_OFFSET] = 0x%x\n",
558 info
->ATARegs
[ATA_REG_ERROR_OFFSET
]);
565 /**************************************************************************
566 * Invoke the transport and basic error-handling/recovery methods
568 * This is used by the protocol layers to actually send the message to
569 * the device and receive the response.
571 static void isd200_invoke_transport( struct us_data
*us
,
572 struct scsi_cmnd
*srb
,
573 union ata_cdb
*ataCdb
)
575 int need_auto_sense
= 0;
579 /* send the command to the transport layer */
580 memcpy(srb
->cmnd
, ataCdb
, sizeof(ataCdb
->generic
));
581 srb
->cmd_len
= sizeof(ataCdb
->generic
);
582 transferStatus
= usb_stor_Bulk_transport(srb
, us
);
584 /* if the command gets aborted by the higher layers, we need to
585 * short-circuit all other processing
587 if (test_bit(US_FLIDX_TIMED_OUT
, &us
->flags
)) {
588 US_DEBUGP("-- command was aborted\n");
592 switch (transferStatus
) {
594 case USB_STOR_TRANSPORT_GOOD
:
595 /* Indicate a good result */
596 srb
->result
= SAM_STAT_GOOD
;
599 case USB_STOR_TRANSPORT_NO_SENSE
:
600 US_DEBUGP("-- transport indicates protocol failure\n");
601 srb
->result
= SAM_STAT_CHECK_CONDITION
;
604 case USB_STOR_TRANSPORT_FAILED
:
605 US_DEBUGP("-- transport indicates command failure\n");
609 case USB_STOR_TRANSPORT_ERROR
:
610 US_DEBUGP("-- transport indicates transport error\n");
611 srb
->result
= DID_ERROR
<< 16;
612 /* Need reset here */
616 US_DEBUGP("-- transport indicates unknown error\n");
617 srb
->result
= DID_ERROR
<< 16;
618 /* Need reset here */
622 if ((scsi_get_resid(srb
) > 0) &&
623 !((srb
->cmnd
[0] == REQUEST_SENSE
) ||
624 (srb
->cmnd
[0] == INQUIRY
) ||
625 (srb
->cmnd
[0] == MODE_SENSE
) ||
626 (srb
->cmnd
[0] == LOG_SENSE
) ||
627 (srb
->cmnd
[0] == MODE_SENSE_10
))) {
628 US_DEBUGP("-- unexpectedly short transfer\n");
632 if (need_auto_sense
) {
633 result
= isd200_read_regs(us
);
634 if (test_bit(US_FLIDX_TIMED_OUT
, &us
->flags
)) {
635 US_DEBUGP("-- auto-sense aborted\n");
638 if (result
== ISD200_GOOD
) {
639 isd200_build_sense(us
, srb
);
640 srb
->result
= SAM_STAT_CHECK_CONDITION
;
642 /* If things are really okay, then let's show that */
643 if ((srb
->sense_buffer
[2] & 0xf) == 0x0)
644 srb
->result
= SAM_STAT_GOOD
;
646 srb
->result
= DID_ERROR
<< 16;
647 /* Need reset here */
651 /* Regardless of auto-sense, if we _know_ we have an error
652 * condition, show that in the result code
654 if (transferStatus
== USB_STOR_TRANSPORT_FAILED
)
655 srb
->result
= SAM_STAT_CHECK_CONDITION
;
658 /* abort processing: the bulk-only transport requires a reset
659 * following an abort */
661 srb
->result
= DID_ABORT
<< 16;
663 /* permit the reset transfer to take place */
664 clear_bit(US_FLIDX_ABORTING
, &us
->flags
);
665 /* Need reset here */
668 #ifdef CONFIG_USB_STORAGE_DEBUG
669 static void isd200_log_config( struct isd200_info
* info
)
671 US_DEBUGP(" Event Notification: 0x%x\n",
672 info
->ConfigData
.EventNotification
);
673 US_DEBUGP(" External Clock: 0x%x\n",
674 info
->ConfigData
.ExternalClock
);
675 US_DEBUGP(" ATA Init Timeout: 0x%x\n",
676 info
->ConfigData
.ATAInitTimeout
);
677 US_DEBUGP(" ATAPI Command Block Size: 0x%x\n",
678 (info
->ConfigData
.ATAConfig
& ATACFG_BLOCKSIZE
) >> 6);
679 US_DEBUGP(" Master/Slave Selection: 0x%x\n",
680 info
->ConfigData
.ATAConfig
& ATACFG_MASTER
);
681 US_DEBUGP(" ATAPI Reset: 0x%x\n",
682 info
->ConfigData
.ATAConfig
& ATACFG_ATAPI_RESET
);
683 US_DEBUGP(" ATA Timing: 0x%x\n",
684 info
->ConfigData
.ATAConfig
& ATACFG_TIMING
);
685 US_DEBUGP(" ATA Major Command: 0x%x\n",
686 info
->ConfigData
.ATAMajorCommand
);
687 US_DEBUGP(" ATA Minor Command: 0x%x\n",
688 info
->ConfigData
.ATAMinorCommand
);
689 US_DEBUGP(" Init Status: 0x%x\n",
690 info
->ConfigData
.ATAExtraConfig
& ATACFGE_INIT_STATUS
);
691 US_DEBUGP(" Config Descriptor 2: 0x%x\n",
692 info
->ConfigData
.ATAExtraConfig
& ATACFGE_CONF_DESC2
);
693 US_DEBUGP(" Skip Device Boot: 0x%x\n",
694 info
->ConfigData
.ATAExtraConfig
& ATACFGE_SKIP_BOOT
);
695 US_DEBUGP(" ATA 3 State Supsend: 0x%x\n",
696 info
->ConfigData
.ATAExtraConfig
& ATACFGE_STATE_SUSPEND
);
697 US_DEBUGP(" Descriptor Override: 0x%x\n",
698 info
->ConfigData
.ATAExtraConfig
& ATACFGE_DESC_OVERRIDE
);
699 US_DEBUGP(" Last LUN Identifier: 0x%x\n",
700 info
->ConfigData
.ATAExtraConfig
& ATACFGE_LAST_LUN
);
701 US_DEBUGP(" SRST Enable: 0x%x\n",
702 info
->ConfigData
.ATAExtraConfig
& CFG_CAPABILITY_SRST
);
706 /**************************************************************************
707 * isd200_write_config
709 * Write the ISD200 Configuration data
714 static int isd200_write_config( struct us_data
*us
)
716 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
717 int retStatus
= ISD200_GOOD
;
720 #ifdef CONFIG_USB_STORAGE_DEBUG
721 US_DEBUGP("Entering isd200_write_config\n");
722 US_DEBUGP(" Writing the following ISD200 Config Data:\n");
723 isd200_log_config(info
);
726 /* let's send the command via the control pipe */
727 result
= usb_stor_ctrl_transfer(
731 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_OUT
,
734 (void *) &info
->ConfigData
,
735 sizeof(info
->ConfigData
));
738 US_DEBUGP(" ISD200 Config Data was written successfully\n");
740 US_DEBUGP(" Request to write ISD200 Config Data failed!\n");
741 retStatus
= ISD200_ERROR
;
744 US_DEBUGP("Leaving isd200_write_config %08X\n", retStatus
);
749 /**************************************************************************
752 * Reads the ISD200 Configuration data
757 static int isd200_read_config( struct us_data
*us
)
759 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
760 int retStatus
= ISD200_GOOD
;
763 US_DEBUGP("Entering isd200_read_config\n");
765 /* read the configuration information from ISD200. Use this to */
766 /* determine what the special ATA CDB bytes are. */
768 result
= usb_stor_ctrl_transfer(
772 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_IN
,
775 (void *) &info
->ConfigData
,
776 sizeof(info
->ConfigData
));
780 US_DEBUGP(" Retrieved the following ISD200 Config Data:\n");
781 #ifdef CONFIG_USB_STORAGE_DEBUG
782 isd200_log_config(info
);
785 US_DEBUGP(" Request to get ISD200 Config Data failed!\n");
786 retStatus
= ISD200_ERROR
;
789 US_DEBUGP("Leaving isd200_read_config %08X\n", retStatus
);
794 /**************************************************************************
795 * isd200_atapi_soft_reset
797 * Perform an Atapi Soft Reset on the device
802 static int isd200_atapi_soft_reset( struct us_data
*us
)
804 int retStatus
= ISD200_GOOD
;
807 US_DEBUGP("Entering isd200_atapi_soft_reset\n");
809 transferStatus
= isd200_action( us
, ACTION_SOFT_RESET
, NULL
, 0 );
810 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
811 US_DEBUGP(" Error issuing Atapi Soft Reset\n");
812 retStatus
= ISD200_ERROR
;
815 US_DEBUGP("Leaving isd200_atapi_soft_reset %08X\n", retStatus
);
820 /**************************************************************************
823 * Perform an SRST on the device
828 static int isd200_srst( struct us_data
*us
)
830 int retStatus
= ISD200_GOOD
;
833 US_DEBUGP("Entering isd200_SRST\n");
835 transferStatus
= isd200_action( us
, ACTION_RESET
, NULL
, 0 );
837 /* check to see if this request failed */
838 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
839 US_DEBUGP(" Error issuing SRST\n");
840 retStatus
= ISD200_ERROR
;
842 /* delay 10ms to give the drive a chance to see it */
845 transferStatus
= isd200_action( us
, ACTION_REENABLE
, NULL
, 0 );
846 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
847 US_DEBUGP(" Error taking drive out of reset\n");
848 retStatus
= ISD200_ERROR
;
850 /* delay 50ms to give the drive a chance to recover after SRST */
855 US_DEBUGP("Leaving isd200_srst %08X\n", retStatus
);
860 /**************************************************************************
863 * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS
864 * and tries to analyze the status registers
869 static int isd200_try_enum(struct us_data
*us
, unsigned char master_slave
,
872 int status
= ISD200_GOOD
;
873 unsigned long endTime
;
874 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
875 unsigned char *regs
= info
->RegsBuf
;
876 int recheckAsMaster
= 0;
879 endTime
= jiffies
+ ISD200_ENUM_DETECT_TIMEOUT
* HZ
;
881 endTime
= jiffies
+ ISD200_ENUM_BSY_TIMEOUT
* HZ
;
883 /* loop until we detect !BSY or timeout */
885 #ifdef CONFIG_USB_STORAGE_DEBUG
886 char* mstr
= master_slave
== ATA_ADDRESS_DEVHEAD_STD
?
890 status
= isd200_action( us
, ACTION_ENUM
, NULL
, master_slave
);
891 if ( status
!= ISD200_GOOD
)
894 status
= isd200_action( us
, ACTION_READ_STATUS
,
896 if ( status
!= ISD200_GOOD
)
900 if (regs
[ATA_REG_STATUS_OFFSET
] & BUSY_STAT
) {
901 US_DEBUGP(" %s status is still BSY, try again...\n",mstr
);
903 US_DEBUGP(" %s status !BSY, continue with next operation\n",mstr
);
907 /* check for BUSY_STAT and */
908 /* WRERR_STAT (workaround ATA Zip drive) and */
909 /* ERR_STAT (workaround for Archos CD-ROM) */
910 else if (regs
[ATA_REG_STATUS_OFFSET
] &
911 (BUSY_STAT
| WRERR_STAT
| ERR_STAT
)) {
912 US_DEBUGP(" Status indicates it is not ready, try again...\n");
914 /* check for DRDY, ATA devices set DRDY after SRST */
915 else if (regs
[ATA_REG_STATUS_OFFSET
] & READY_STAT
) {
916 US_DEBUGP(" Identified ATA device\n");
917 info
->DeviceFlags
|= DF_ATA_DEVICE
;
918 info
->DeviceHead
= master_slave
;
921 /* check Cylinder High/Low to
922 determine if it is an ATAPI device
924 else if (regs
[ATA_REG_HCYL_OFFSET
] == 0xEB &&
925 regs
[ATA_REG_LCYL_OFFSET
] == 0x14) {
926 /* It seems that the RICOH
927 MP6200A CD/RW drive will
928 report itself okay as a
929 slave when it is really a
930 master. So this check again
931 as a master device just to
932 make sure it doesn't report
933 itself okay as a master also
935 if ((master_slave
& ATA_ADDRESS_DEVHEAD_SLAVE
) &&
937 US_DEBUGP(" Identified ATAPI device as slave. Rechecking again as master\n");
939 master_slave
= ATA_ADDRESS_DEVHEAD_STD
;
941 US_DEBUGP(" Identified ATAPI device\n");
942 info
->DeviceHead
= master_slave
;
944 status
= isd200_atapi_soft_reset(us
);
948 US_DEBUGP(" Not ATA, not ATAPI. Weird.\n");
952 /* check for timeout on this request */
953 if (time_after_eq(jiffies
, endTime
)) {
955 US_DEBUGP(" BSY check timeout, just continue with next operation...\n");
957 US_DEBUGP(" Device detect timeout!\n");
965 /**************************************************************************
968 * Determines if the drive attached is an ATA or ATAPI and if it is a
974 static int isd200_manual_enum(struct us_data
*us
)
976 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
977 int retStatus
= ISD200_GOOD
;
979 US_DEBUGP("Entering isd200_manual_enum\n");
981 retStatus
= isd200_read_config(us
);
982 if (retStatus
== ISD200_GOOD
) {
984 /* master or slave? */
985 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_STD
, 0);
986 if (retStatus
== ISD200_GOOD
)
987 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_SLAVE
, 0);
989 if (retStatus
== ISD200_GOOD
) {
990 retStatus
= isd200_srst(us
);
991 if (retStatus
== ISD200_GOOD
)
993 retStatus
= isd200_try_enum( us
, ATA_ADDRESS_DEVHEAD_STD
, 1);
996 isslave
= (info
->DeviceHead
& ATA_ADDRESS_DEVHEAD_SLAVE
) ? 1 : 0;
997 if (!(info
->ConfigData
.ATAConfig
& ATACFG_MASTER
)) {
998 US_DEBUGP(" Setting Master/Slave selection to %d\n", isslave
);
999 info
->ConfigData
.ATAConfig
&= 0x3f;
1000 info
->ConfigData
.ATAConfig
|= (isslave
<<6);
1001 retStatus
= isd200_write_config(us
);
1005 US_DEBUGP("Leaving isd200_manual_enum %08X\n", retStatus
);
1009 static void isd200_fix_driveid (struct hd_driveid
*id
)
1011 #ifndef __LITTLE_ENDIAN
1012 # ifdef __BIG_ENDIAN
1016 id
->config
= __le16_to_cpu(id
->config
);
1017 id
->cyls
= __le16_to_cpu(id
->cyls
);
1018 id
->reserved2
= __le16_to_cpu(id
->reserved2
);
1019 id
->heads
= __le16_to_cpu(id
->heads
);
1020 id
->track_bytes
= __le16_to_cpu(id
->track_bytes
);
1021 id
->sector_bytes
= __le16_to_cpu(id
->sector_bytes
);
1022 id
->sectors
= __le16_to_cpu(id
->sectors
);
1023 id
->vendor0
= __le16_to_cpu(id
->vendor0
);
1024 id
->vendor1
= __le16_to_cpu(id
->vendor1
);
1025 id
->vendor2
= __le16_to_cpu(id
->vendor2
);
1026 stringcast
= (u16
*)&id
->serial_no
[0];
1027 for (i
= 0; i
< (20/2); i
++)
1028 stringcast
[i
] = __le16_to_cpu(stringcast
[i
]);
1029 id
->buf_type
= __le16_to_cpu(id
->buf_type
);
1030 id
->buf_size
= __le16_to_cpu(id
->buf_size
);
1031 id
->ecc_bytes
= __le16_to_cpu(id
->ecc_bytes
);
1032 stringcast
= (u16
*)&id
->fw_rev
[0];
1033 for (i
= 0; i
< (8/2); i
++)
1034 stringcast
[i
] = __le16_to_cpu(stringcast
[i
]);
1035 stringcast
= (u16
*)&id
->model
[0];
1036 for (i
= 0; i
< (40/2); i
++)
1037 stringcast
[i
] = __le16_to_cpu(stringcast
[i
]);
1038 id
->dword_io
= __le16_to_cpu(id
->dword_io
);
1039 id
->reserved50
= __le16_to_cpu(id
->reserved50
);
1040 id
->field_valid
= __le16_to_cpu(id
->field_valid
);
1041 id
->cur_cyls
= __le16_to_cpu(id
->cur_cyls
);
1042 id
->cur_heads
= __le16_to_cpu(id
->cur_heads
);
1043 id
->cur_sectors
= __le16_to_cpu(id
->cur_sectors
);
1044 id
->cur_capacity0
= __le16_to_cpu(id
->cur_capacity0
);
1045 id
->cur_capacity1
= __le16_to_cpu(id
->cur_capacity1
);
1046 id
->lba_capacity
= __le32_to_cpu(id
->lba_capacity
);
1047 id
->dma_1word
= __le16_to_cpu(id
->dma_1word
);
1048 id
->dma_mword
= __le16_to_cpu(id
->dma_mword
);
1049 id
->eide_pio_modes
= __le16_to_cpu(id
->eide_pio_modes
);
1050 id
->eide_dma_min
= __le16_to_cpu(id
->eide_dma_min
);
1051 id
->eide_dma_time
= __le16_to_cpu(id
->eide_dma_time
);
1052 id
->eide_pio
= __le16_to_cpu(id
->eide_pio
);
1053 id
->eide_pio_iordy
= __le16_to_cpu(id
->eide_pio_iordy
);
1054 for (i
= 0; i
< 2; ++i
)
1055 id
->words69_70
[i
] = __le16_to_cpu(id
->words69_70
[i
]);
1056 for (i
= 0; i
< 4; ++i
)
1057 id
->words71_74
[i
] = __le16_to_cpu(id
->words71_74
[i
]);
1058 id
->queue_depth
= __le16_to_cpu(id
->queue_depth
);
1059 for (i
= 0; i
< 4; ++i
)
1060 id
->words76_79
[i
] = __le16_to_cpu(id
->words76_79
[i
]);
1061 id
->major_rev_num
= __le16_to_cpu(id
->major_rev_num
);
1062 id
->minor_rev_num
= __le16_to_cpu(id
->minor_rev_num
);
1063 id
->command_set_1
= __le16_to_cpu(id
->command_set_1
);
1064 id
->command_set_2
= __le16_to_cpu(id
->command_set_2
);
1065 id
->cfsse
= __le16_to_cpu(id
->cfsse
);
1066 id
->cfs_enable_1
= __le16_to_cpu(id
->cfs_enable_1
);
1067 id
->cfs_enable_2
= __le16_to_cpu(id
->cfs_enable_2
);
1068 id
->csf_default
= __le16_to_cpu(id
->csf_default
);
1069 id
->dma_ultra
= __le16_to_cpu(id
->dma_ultra
);
1070 id
->trseuc
= __le16_to_cpu(id
->trseuc
);
1071 id
->trsEuc
= __le16_to_cpu(id
->trsEuc
);
1072 id
->CurAPMvalues
= __le16_to_cpu(id
->CurAPMvalues
);
1073 id
->mprc
= __le16_to_cpu(id
->mprc
);
1074 id
->hw_config
= __le16_to_cpu(id
->hw_config
);
1075 id
->acoustic
= __le16_to_cpu(id
->acoustic
);
1076 id
->msrqs
= __le16_to_cpu(id
->msrqs
);
1077 id
->sxfert
= __le16_to_cpu(id
->sxfert
);
1078 id
->sal
= __le16_to_cpu(id
->sal
);
1079 id
->spg
= __le32_to_cpu(id
->spg
);
1080 id
->lba_capacity_2
= __le64_to_cpu(id
->lba_capacity_2
);
1081 for (i
= 0; i
< 22; i
++)
1082 id
->words104_125
[i
] = __le16_to_cpu(id
->words104_125
[i
]);
1083 id
->last_lun
= __le16_to_cpu(id
->last_lun
);
1084 id
->word127
= __le16_to_cpu(id
->word127
);
1085 id
->dlf
= __le16_to_cpu(id
->dlf
);
1086 id
->csfo
= __le16_to_cpu(id
->csfo
);
1087 for (i
= 0; i
< 26; i
++)
1088 id
->words130_155
[i
] = __le16_to_cpu(id
->words130_155
[i
]);
1089 id
->word156
= __le16_to_cpu(id
->word156
);
1090 for (i
= 0; i
< 3; i
++)
1091 id
->words157_159
[i
] = __le16_to_cpu(id
->words157_159
[i
]);
1092 id
->cfa_power
= __le16_to_cpu(id
->cfa_power
);
1093 for (i
= 0; i
< 14; i
++)
1094 id
->words161_175
[i
] = __le16_to_cpu(id
->words161_175
[i
]);
1095 for (i
= 0; i
< 31; i
++)
1096 id
->words176_205
[i
] = __le16_to_cpu(id
->words176_205
[i
]);
1097 for (i
= 0; i
< 48; i
++)
1098 id
->words206_254
[i
] = __le16_to_cpu(id
->words206_254
[i
]);
1099 id
->integrity_word
= __le16_to_cpu(id
->integrity_word
);
1101 # error "Please fix <asm/byteorder.h>"
1107 /**************************************************************************
1108 * isd200_get_inquiry_data
1115 static int isd200_get_inquiry_data( struct us_data
*us
)
1117 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
1118 int retStatus
= ISD200_GOOD
;
1119 struct hd_driveid
*id
= info
->id
;
1121 US_DEBUGP("Entering isd200_get_inquiry_data\n");
1123 /* set default to Master */
1124 info
->DeviceHead
= ATA_ADDRESS_DEVHEAD_STD
;
1126 /* attempt to manually enumerate this device */
1127 retStatus
= isd200_manual_enum(us
);
1128 if (retStatus
== ISD200_GOOD
) {
1131 /* check for an ATA device */
1132 if (info
->DeviceFlags
& DF_ATA_DEVICE
) {
1133 /* this must be an ATA device */
1134 /* perform an ATA Command Identify */
1135 transferStatus
= isd200_action( us
, ACTION_IDENTIFY
,
1137 sizeof(struct hd_driveid
) );
1138 if (transferStatus
!= ISD200_TRANSPORT_GOOD
) {
1139 /* Error issuing ATA Command Identify */
1140 US_DEBUGP(" Error issuing ATA Command Identify\n");
1141 retStatus
= ISD200_ERROR
;
1143 /* ATA Command Identify successful */
1147 isd200_fix_driveid(id
);
1149 US_DEBUGP(" Identify Data Structure:\n");
1150 US_DEBUGP(" config = 0x%x\n", id
->config
);
1151 US_DEBUGP(" cyls = 0x%x\n", id
->cyls
);
1152 US_DEBUGP(" heads = 0x%x\n", id
->heads
);
1153 US_DEBUGP(" track_bytes = 0x%x\n", id
->track_bytes
);
1154 US_DEBUGP(" sector_bytes = 0x%x\n", id
->sector_bytes
);
1155 US_DEBUGP(" sectors = 0x%x\n", id
->sectors
);
1156 US_DEBUGP(" serial_no[0] = 0x%x\n", id
->serial_no
[0]);
1157 US_DEBUGP(" buf_type = 0x%x\n", id
->buf_type
);
1158 US_DEBUGP(" buf_size = 0x%x\n", id
->buf_size
);
1159 US_DEBUGP(" ecc_bytes = 0x%x\n", id
->ecc_bytes
);
1160 US_DEBUGP(" fw_rev[0] = 0x%x\n", id
->fw_rev
[0]);
1161 US_DEBUGP(" model[0] = 0x%x\n", id
->model
[0]);
1162 US_DEBUGP(" max_multsect = 0x%x\n", id
->max_multsect
);
1163 US_DEBUGP(" dword_io = 0x%x\n", id
->dword_io
);
1164 US_DEBUGP(" capability = 0x%x\n", id
->capability
);
1165 US_DEBUGP(" tPIO = 0x%x\n", id
->tPIO
);
1166 US_DEBUGP(" tDMA = 0x%x\n", id
->tDMA
);
1167 US_DEBUGP(" field_valid = 0x%x\n", id
->field_valid
);
1168 US_DEBUGP(" cur_cyls = 0x%x\n", id
->cur_cyls
);
1169 US_DEBUGP(" cur_heads = 0x%x\n", id
->cur_heads
);
1170 US_DEBUGP(" cur_sectors = 0x%x\n", id
->cur_sectors
);
1171 US_DEBUGP(" cur_capacity = 0x%x\n", (id
->cur_capacity1
<< 16) + id
->cur_capacity0
);
1172 US_DEBUGP(" multsect = 0x%x\n", id
->multsect
);
1173 US_DEBUGP(" lba_capacity = 0x%x\n", id
->lba_capacity
);
1174 US_DEBUGP(" command_set_1 = 0x%x\n", id
->command_set_1
);
1175 US_DEBUGP(" command_set_2 = 0x%x\n", id
->command_set_2
);
1177 memset(&info
->InquiryData
, 0, sizeof(info
->InquiryData
));
1179 /* Standard IDE interface only supports disks */
1180 info
->InquiryData
.DeviceType
= DIRECT_ACCESS_DEVICE
;
1182 /* The length must be at least 36 (5 + 31) */
1183 info
->InquiryData
.AdditionalLength
= 0x1F;
1185 if (id
->command_set_1
& COMMANDSET_MEDIA_STATUS
) {
1186 /* set the removable bit */
1187 info
->InquiryData
.DeviceTypeModifier
= DEVICE_REMOVABLE
;
1188 info
->DeviceFlags
|= DF_REMOVABLE_MEDIA
;
1191 /* Fill in vendor identification fields */
1192 src
= (__be16
*)id
->model
;
1193 dest
= (__u16
*)info
->InquiryData
.VendorId
;
1195 dest
[i
] = be16_to_cpu(src
[i
]);
1197 src
= (__be16
*)(id
->model
+8);
1198 dest
= (__u16
*)info
->InquiryData
.ProductId
;
1200 dest
[i
] = be16_to_cpu(src
[i
]);
1202 src
= (__be16
*)id
->fw_rev
;
1203 dest
= (__u16
*)info
->InquiryData
.ProductRevisionLevel
;
1205 dest
[i
] = be16_to_cpu(src
[i
]);
1207 /* determine if it supports Media Status Notification */
1208 if (id
->command_set_2
& COMMANDSET_MEDIA_STATUS
) {
1209 US_DEBUGP(" Device supports Media Status Notification\n");
1211 /* Indicate that it is enabled, even though it is not
1212 * This allows the lock/unlock of the media to work
1215 info
->DeviceFlags
|= DF_MEDIA_STATUS_ENABLED
;
1218 info
->DeviceFlags
&= ~DF_MEDIA_STATUS_ENABLED
;
1223 * this must be an ATAPI device
1224 * use an ATAPI protocol (Transparent SCSI)
1226 us
->protocol_name
= "Transparent SCSI";
1227 us
->proto_handler
= usb_stor_transparent_scsi_command
;
1229 US_DEBUGP("Protocol changed to: %s\n", us
->protocol_name
);
1231 /* Free driver structure */
1232 us
->extra_destructor(info
);
1234 us
->extra_destructor
= NULL
;
1238 US_DEBUGP("Leaving isd200_get_inquiry_data %08X\n", retStatus
);
1243 /**************************************************************************
1244 * isd200_scsi_to_ata
1246 * Translate SCSI commands to ATA commands.
1249 * 1 if the command needs to be sent to the transport layer
1252 static int isd200_scsi_to_ata(struct scsi_cmnd
*srb
, struct us_data
*us
,
1253 union ata_cdb
* ataCdb
)
1255 struct isd200_info
*info
= (struct isd200_info
*)us
->extra
;
1256 struct hd_driveid
*id
= info
->id
;
1257 int sendToTransport
= 1;
1258 unsigned char sectnum
, head
;
1259 unsigned short cylinder
;
1261 unsigned long blockCount
;
1262 unsigned char senseData
[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
1264 memset(ataCdb
, 0, sizeof(union ata_cdb
));
1267 switch (srb
->cmnd
[0]) {
1269 US_DEBUGP(" ATA OUT - INQUIRY\n");
1271 /* copy InquiryData */
1272 usb_stor_set_xfer_buf((unsigned char *) &info
->InquiryData
,
1273 sizeof(info
->InquiryData
), srb
);
1274 srb
->result
= SAM_STAT_GOOD
;
1275 sendToTransport
= 0;
1279 US_DEBUGP(" ATA OUT - SCSIOP_MODE_SENSE\n");
1281 /* Initialize the return buffer */
1282 usb_stor_set_xfer_buf(senseData
, sizeof(senseData
), srb
);
1284 if (info
->DeviceFlags
& DF_MEDIA_STATUS_ENABLED
)
1286 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1287 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1288 ataCdb
->generic
.TransferBlockSize
= 1;
1289 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1290 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1291 isd200_srb_set_bufflen(srb
, 0);
1293 US_DEBUGP(" Media Status not supported, just report okay\n");
1294 srb
->result
= SAM_STAT_GOOD
;
1295 sendToTransport
= 0;
1299 case TEST_UNIT_READY
:
1300 US_DEBUGP(" ATA OUT - SCSIOP_TEST_UNIT_READY\n");
1302 if (info
->DeviceFlags
& DF_MEDIA_STATUS_ENABLED
)
1304 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1305 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1306 ataCdb
->generic
.TransferBlockSize
= 1;
1307 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1308 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1309 isd200_srb_set_bufflen(srb
, 0);
1311 US_DEBUGP(" Media Status not supported, just report okay\n");
1312 srb
->result
= SAM_STAT_GOOD
;
1313 sendToTransport
= 0;
1319 unsigned long capacity
;
1320 struct read_capacity_data readCapacityData
;
1322 US_DEBUGP(" ATA OUT - SCSIOP_READ_CAPACITY\n");
1324 if (id
->capability
& CAPABILITY_LBA
) {
1325 capacity
= id
->lba_capacity
- 1;
1327 capacity
= (id
->heads
*
1331 readCapacityData
.LogicalBlockAddress
= cpu_to_be32(capacity
);
1332 readCapacityData
.BytesPerBlock
= cpu_to_be32(0x200);
1334 usb_stor_set_xfer_buf((unsigned char *) &readCapacityData
,
1335 sizeof(readCapacityData
), srb
);
1336 srb
->result
= SAM_STAT_GOOD
;
1337 sendToTransport
= 0;
1342 US_DEBUGP(" ATA OUT - SCSIOP_READ\n");
1344 lba
= be32_to_cpu(*(__be32
*)&srb
->cmnd
[2]);
1345 blockCount
= (unsigned long)srb
->cmnd
[7]<<8 | (unsigned long)srb
->cmnd
[8];
1347 if (id
->capability
& CAPABILITY_LBA
) {
1348 sectnum
= (unsigned char)(lba
);
1349 cylinder
= (unsigned short)(lba
>>8);
1350 head
= ATA_ADDRESS_DEVHEAD_LBA_MODE
| (unsigned char)(lba
>>24 & 0x0F);
1352 sectnum
= (unsigned char)((lba
% id
->sectors
) + 1);
1353 cylinder
= (unsigned short)(lba
/ (id
->sectors
*
1355 head
= (unsigned char)((lba
/ id
->sectors
) %
1358 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1359 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1360 ataCdb
->generic
.TransferBlockSize
= 1;
1361 ataCdb
->generic
.RegisterSelect
=
1362 REG_SECTOR_COUNT
| REG_SECTOR_NUMBER
|
1363 REG_CYLINDER_LOW
| REG_CYLINDER_HIGH
|
1364 REG_DEVICE_HEAD
| REG_COMMAND
;
1365 ataCdb
->write
.SectorCountByte
= (unsigned char)blockCount
;
1366 ataCdb
->write
.SectorNumberByte
= sectnum
;
1367 ataCdb
->write
.CylinderHighByte
= (unsigned char)(cylinder
>>8);
1368 ataCdb
->write
.CylinderLowByte
= (unsigned char)cylinder
;
1369 ataCdb
->write
.DeviceHeadByte
= (head
| ATA_ADDRESS_DEVHEAD_STD
);
1370 ataCdb
->write
.CommandByte
= WIN_READ
;
1374 US_DEBUGP(" ATA OUT - SCSIOP_WRITE\n");
1376 lba
= be32_to_cpu(*(__be32
*)&srb
->cmnd
[2]);
1377 blockCount
= (unsigned long)srb
->cmnd
[7]<<8 | (unsigned long)srb
->cmnd
[8];
1379 if (id
->capability
& CAPABILITY_LBA
) {
1380 sectnum
= (unsigned char)(lba
);
1381 cylinder
= (unsigned short)(lba
>>8);
1382 head
= ATA_ADDRESS_DEVHEAD_LBA_MODE
| (unsigned char)(lba
>>24 & 0x0F);
1384 sectnum
= (unsigned char)((lba
% id
->sectors
) + 1);
1385 cylinder
= (unsigned short)(lba
/ (id
->sectors
* id
->heads
));
1386 head
= (unsigned char)((lba
/ id
->sectors
) % id
->heads
);
1388 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1389 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1390 ataCdb
->generic
.TransferBlockSize
= 1;
1391 ataCdb
->generic
.RegisterSelect
=
1392 REG_SECTOR_COUNT
| REG_SECTOR_NUMBER
|
1393 REG_CYLINDER_LOW
| REG_CYLINDER_HIGH
|
1394 REG_DEVICE_HEAD
| REG_COMMAND
;
1395 ataCdb
->write
.SectorCountByte
= (unsigned char)blockCount
;
1396 ataCdb
->write
.SectorNumberByte
= sectnum
;
1397 ataCdb
->write
.CylinderHighByte
= (unsigned char)(cylinder
>>8);
1398 ataCdb
->write
.CylinderLowByte
= (unsigned char)cylinder
;
1399 ataCdb
->write
.DeviceHeadByte
= (head
| ATA_ADDRESS_DEVHEAD_STD
);
1400 ataCdb
->write
.CommandByte
= WIN_WRITE
;
1403 case ALLOW_MEDIUM_REMOVAL
:
1404 US_DEBUGP(" ATA OUT - SCSIOP_MEDIUM_REMOVAL\n");
1406 if (info
->DeviceFlags
& DF_REMOVABLE_MEDIA
) {
1407 US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb
->cmnd
[4]);
1409 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1410 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1411 ataCdb
->generic
.TransferBlockSize
= 1;
1412 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1413 ataCdb
->write
.CommandByte
= (srb
->cmnd
[4] & 0x1) ?
1414 WIN_DOORLOCK
: WIN_DOORUNLOCK
;
1415 isd200_srb_set_bufflen(srb
, 0);
1417 US_DEBUGP(" Not removeable media, just report okay\n");
1418 srb
->result
= SAM_STAT_GOOD
;
1419 sendToTransport
= 0;
1424 US_DEBUGP(" ATA OUT - SCSIOP_START_STOP_UNIT\n");
1425 US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb
->cmnd
[4]);
1427 if ((srb
->cmnd
[4] & 0x3) == 0x2) {
1428 US_DEBUGP(" Media Eject\n");
1429 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1430 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1431 ataCdb
->generic
.TransferBlockSize
= 0;
1432 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1433 ataCdb
->write
.CommandByte
= ATA_COMMAND_MEDIA_EJECT
;
1434 } else if ((srb
->cmnd
[4] & 0x3) == 0x1) {
1435 US_DEBUGP(" Get Media Status\n");
1436 ataCdb
->generic
.SignatureByte0
= info
->ConfigData
.ATAMajorCommand
;
1437 ataCdb
->generic
.SignatureByte1
= info
->ConfigData
.ATAMinorCommand
;
1438 ataCdb
->generic
.TransferBlockSize
= 1;
1439 ataCdb
->generic
.RegisterSelect
= REG_COMMAND
;
1440 ataCdb
->write
.CommandByte
= ATA_COMMAND_GET_MEDIA_STATUS
;
1441 isd200_srb_set_bufflen(srb
, 0);
1443 US_DEBUGP(" Nothing to do, just report okay\n");
1444 srb
->result
= SAM_STAT_GOOD
;
1445 sendToTransport
= 0;
1450 US_DEBUGP("Unsupported SCSI command - 0x%X\n", srb
->cmnd
[0]);
1451 srb
->result
= DID_ERROR
<< 16;
1452 sendToTransport
= 0;
1456 return(sendToTransport
);
1460 /**************************************************************************
1463 * Frees the driver structure.
1465 static void isd200_free_info_ptrs(void *info_
)
1467 struct isd200_info
*info
= (struct isd200_info
*) info_
;
1471 kfree(info
->RegsBuf
);
1472 kfree(info
->srb
.sense_buffer
);
1476 /**************************************************************************
1479 * Allocates (if necessary) and initializes the driver structure.
1484 static int isd200_init_info(struct us_data
*us
)
1486 int retStatus
= ISD200_GOOD
;
1487 struct isd200_info
*info
;
1489 info
= (struct isd200_info
*)
1490 kzalloc(sizeof(struct isd200_info
), GFP_KERNEL
);
1492 retStatus
= ISD200_ERROR
;
1494 info
->id
= (struct hd_driveid
*)
1495 kzalloc(sizeof(struct hd_driveid
), GFP_KERNEL
);
1496 info
->RegsBuf
= (unsigned char *)
1497 kmalloc(sizeof(info
->ATARegs
), GFP_KERNEL
);
1498 info
->srb
.sense_buffer
=
1499 kmalloc(SCSI_SENSE_BUFFERSIZE
, GFP_KERNEL
);
1500 if (!info
->id
|| !info
->RegsBuf
|| !info
->srb
.sense_buffer
) {
1501 isd200_free_info_ptrs(info
);
1503 retStatus
= ISD200_ERROR
;
1507 if (retStatus
== ISD200_GOOD
) {
1509 us
->extra_destructor
= isd200_free_info_ptrs
;
1511 US_DEBUGP("ERROR - kmalloc failure\n");
1516 /**************************************************************************
1517 * Initialization for the ISD200
1520 int isd200_Initialization(struct us_data
*us
)
1522 US_DEBUGP("ISD200 Initialization...\n");
1524 /* Initialize ISD200 info struct */
1526 if (isd200_init_info(us
) == ISD200_ERROR
) {
1527 US_DEBUGP("ERROR Initializing ISD200 Info struct\n");
1529 /* Get device specific data */
1531 if (isd200_get_inquiry_data(us
) != ISD200_GOOD
)
1532 US_DEBUGP("ISD200 Initialization Failure\n");
1534 US_DEBUGP("ISD200 Initialization complete\n");
1541 /**************************************************************************
1542 * Protocol and Transport for the ISD200 ASIC
1544 * This protocol and transport are for ATA devices connected to an ISD200
1545 * ASIC. An ATAPI device that is conected as a slave device will be
1546 * detected in the driver initialization function and the protocol will
1547 * be changed to an ATAPI protocol (Transparent SCSI).
1551 void isd200_ata_command(struct scsi_cmnd
*srb
, struct us_data
*us
)
1553 int sendToTransport
= 1, orig_bufflen
;
1554 union ata_cdb ataCdb
;
1556 /* Make sure driver was initialized */
1558 if (us
->extra
== NULL
)
1559 US_DEBUGP("ERROR Driver not initialized\n");
1561 scsi_set_resid(srb
, 0);
1562 /* scsi_bufflen might change in protocol translation to ata */
1563 orig_bufflen
= scsi_bufflen(srb
);
1564 sendToTransport
= isd200_scsi_to_ata(srb
, us
, &ataCdb
);
1566 /* send the command to the transport layer */
1567 if (sendToTransport
)
1568 isd200_invoke_transport(us
, srb
, &ataCdb
);
1570 isd200_srb_set_bufflen(srb
, orig_bufflen
);