2 * Most of this source has been derived from the Linux USB
4 * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
5 * (c) 2000 David L. Brown, Jr. (usb-storage@davidb.org)
6 * (c) 1999 Michael Gee (michael@linuxspecific.com)
7 * (c) 2000 Yggdrasil Computing, Inc.
11 * (C) Copyright 2001 Denis Peter, MPL AG Switzerland
13 * For BBB support (C) Copyright 2003
14 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
16 * BBB support based on /sys/dev/usb/umass.c from
19 * See file CREDITS for list of people who contributed to this
22 * This program is free software; you can redistribute it and/or
23 * modify it under the terms of the GNU General Public License as
24 * published by the Free Software Foundation; either version 2 of
25 * the License, or (at your option) any later version.
27 * This program is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
32 * You should have received a copy of the GNU General Public License
33 * along with this program; if not, write to the Free Software
34 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
40 * Currently only the CBI transport protocoll has been implemented, and it
41 * is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
42 * transport protocoll may work as well.
46 * Support for USB Mass Storage Devices (BBB) has been added. It has
47 * only been tested with USB memory sticks.
53 #include <asm/byteorder.h>
54 #include <asm/processor.h>
59 #undef BBB_COMDAT_TRACE
60 #undef BBB_XPORT_TRACE
63 /* direction table -- this indicates the direction of the data
64 * transfer for each command code -- a 1 indicates input
66 static const unsigned char us_direction
[256/8] = {
67 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
68 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
69 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
72 #define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
74 static ccb usb_ccb
__attribute__((aligned(ARCH_DMA_MINALIGN
)));
85 #define US_BBB_RESET 0xff
86 #define US_BBB_GET_MAX_LUN 0xfe
88 /* Command Block Wrapper */
91 # define CBWSIGNATURE 0x43425355
93 __u32 dCBWDataTransferLength
;
95 # define CBWFLAGS_OUT 0x00
96 # define CBWFLAGS_IN 0x80
99 # define CBWCDBLENGTH 16
100 __u8 CBWCDB
[CBWCDBLENGTH
];
102 #define UMASS_BBB_CBW_SIZE 31
105 /* Command Status Wrapper */
108 # define CSWSIGNATURE 0x53425355
110 __u32 dCSWDataResidue
;
112 # define CSWSTATUS_GOOD 0x0
113 # define CSWSTATUS_FAILED 0x1
114 # define CSWSTATUS_PHASE 0x2
116 #define UMASS_BBB_CSW_SIZE 13
118 #define USB_MAX_STOR_DEV 5
119 static int usb_max_devs
; /* number of highest available usb device */
121 static block_dev_desc_t usb_dev_desc
[USB_MAX_STOR_DEV
];
124 typedef int (*trans_cmnd
)(ccb
*cb
, struct us_data
*data
);
125 typedef int (*trans_reset
)(struct us_data
*data
);
128 struct usb_device
*pusb_dev
; /* this usb_device */
130 unsigned int flags
; /* from filter initially */
131 # define USB_READY (1 << 0)
132 unsigned char ifnum
; /* interface number */
133 unsigned char ep_in
; /* in endpoint */
134 unsigned char ep_out
; /* out ....... */
135 unsigned char ep_int
; /* interrupt . */
136 unsigned char subclass
; /* as in overview */
137 unsigned char protocol
; /* .............. */
138 unsigned char attention_done
; /* force attn on first cmd */
139 unsigned short ip_data
; /* interrupt data */
140 int action
; /* what to do */
141 int ip_wanted
; /* needed */
142 int *irq_handle
; /* for USB int requests */
143 unsigned int irqpipe
; /* pipe for release_irq */
144 unsigned char irqmaxp
; /* max packed for irq Pipe */
145 unsigned char irqinterval
; /* Intervall for IRQ Pipe */
146 ccb
*srb
; /* current srb */
147 trans_reset transport_reset
; /* reset routine */
148 trans_cmnd transport
; /* transport routine */
151 #ifdef CONFIG_USB_EHCI
153 * The U-Boot EHCI driver can handle any transfer length as long as there is
154 * enough free heap space left, but the SCSI READ(10) and WRITE(10) commands are
155 * limited to 65535 blocks.
157 #define USB_MAX_XFER_BLK 65535
159 #define USB_MAX_XFER_BLK 20
162 static struct us_data usb_stor
[USB_MAX_STOR_DEV
];
165 #define USB_STOR_TRANSPORT_GOOD 0
166 #define USB_STOR_TRANSPORT_FAILED -1
167 #define USB_STOR_TRANSPORT_ERROR -2
169 int usb_stor_get_info(struct usb_device
*dev
, struct us_data
*us
,
170 block_dev_desc_t
*dev_desc
);
171 int usb_storage_probe(struct usb_device
*dev
, unsigned int ifnum
,
173 unsigned long usb_stor_read(int device
, unsigned long blknr
,
174 lbaint_t blkcnt
, void *buffer
);
175 unsigned long usb_stor_write(int device
, unsigned long blknr
,
176 lbaint_t blkcnt
, const void *buffer
);
177 struct usb_device
* usb_get_dev_index(int index
);
178 void uhci_show_temp_int_td(void);
180 #ifdef CONFIG_PARTITIONS
181 block_dev_desc_t
*usb_stor_get_dev(int index
)
183 return (index
< usb_max_devs
) ? &usb_dev_desc
[index
] : NULL
;
187 static void usb_show_progress(void)
192 /*******************************************************************************
193 * show info on storage devices; 'usb start/init' must be invoked earlier
194 * as we only retrieve structures populated during devices initialization
196 int usb_stor_info(void)
200 if (usb_max_devs
> 0) {
201 for (i
= 0; i
< usb_max_devs
; i
++) {
202 printf(" Device %d: ", i
);
203 dev_print(&usb_dev_desc
[i
]);
208 printf("No storage devices, perhaps not 'usb start'ed..?\n");
212 static unsigned int usb_get_max_lun(struct us_data
*us
)
215 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, result
, 1);
216 len
= usb_control_msg(us
->pusb_dev
,
217 usb_rcvctrlpipe(us
->pusb_dev
, 0),
219 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
| USB_DIR_IN
,
221 result
, sizeof(char),
222 USB_CNTL_TIMEOUT
* 5);
223 debug("Get Max LUN -> len = %i, result = %i\n", len
, (int) *result
);
224 return (len
> 0) ? *result
: 0;
227 /*******************************************************************************
228 * scan the usb and reports device info
229 * to the user if mode = 1
230 * returns current device or -1 if no
232 int usb_stor_scan(int mode
)
235 struct usb_device
*dev
;
238 printf(" scanning usb for storage devices... ");
240 usb_disable_asynch(1); /* asynch transfer not allowed */
242 for (i
= 0; i
< USB_MAX_STOR_DEV
; i
++) {
243 memset(&usb_dev_desc
[i
], 0, sizeof(block_dev_desc_t
));
244 usb_dev_desc
[i
].if_type
= IF_TYPE_USB
;
245 usb_dev_desc
[i
].dev
= i
;
246 usb_dev_desc
[i
].part_type
= PART_TYPE_UNKNOWN
;
247 usb_dev_desc
[i
].target
= 0xff;
248 usb_dev_desc
[i
].type
= DEV_TYPE_UNKNOWN
;
249 usb_dev_desc
[i
].block_read
= usb_stor_read
;
250 usb_dev_desc
[i
].block_write
= usb_stor_write
;
254 for (i
= 0; i
< USB_MAX_DEVICE
; i
++) {
255 dev
= usb_get_dev_index(i
); /* get device */
258 break; /* no more devices available */
260 if (usb_storage_probe(dev
, 0, &usb_stor
[usb_max_devs
])) {
261 /* OK, it's a storage device. Iterate over its LUNs
262 * and populate `usb_dev_desc'.
264 int lun
, max_lun
, start
= usb_max_devs
;
266 max_lun
= usb_get_max_lun(&usb_stor
[usb_max_devs
]);
268 lun
<= max_lun
&& usb_max_devs
< USB_MAX_STOR_DEV
;
270 usb_dev_desc
[usb_max_devs
].lun
= lun
;
271 if (usb_stor_get_info(dev
, &usb_stor
[start
],
272 &usb_dev_desc
[usb_max_devs
]) == 1) {
277 /* if storage device */
278 if (usb_max_devs
== USB_MAX_STOR_DEV
) {
279 printf("max USB Storage Device reached: %d stopping\n",
285 usb_disable_asynch(0); /* asynch transfer allowed */
286 printf("%d Storage Device(s) found\n", usb_max_devs
);
287 if (usb_max_devs
> 0)
292 static int usb_stor_irq(struct usb_device
*dev
)
295 us
= (struct us_data
*)dev
->privptr
;
305 static void usb_show_srb(ccb
*pccb
)
308 printf("SRB: len %d datalen 0x%lX\n ", pccb
->cmdlen
, pccb
->datalen
);
309 for (i
= 0; i
< 12; i
++)
310 printf("%02X ", pccb
->cmd
[i
]);
314 static void display_int_status(unsigned long tmp
)
316 printf("Status: %s %s %s %s %s %s %s\n",
317 (tmp
& USB_ST_ACTIVE
) ? "Active" : "",
318 (tmp
& USB_ST_STALLED
) ? "Stalled" : "",
319 (tmp
& USB_ST_BUF_ERR
) ? "Buffer Error" : "",
320 (tmp
& USB_ST_BABBLE_DET
) ? "Babble Det" : "",
321 (tmp
& USB_ST_NAK_REC
) ? "NAKed" : "",
322 (tmp
& USB_ST_CRC_ERR
) ? "CRC Error" : "",
323 (tmp
& USB_ST_BIT_ERR
) ? "Bitstuff Error" : "");
326 /***********************************************************************
327 * Data transfer routines
328 ***********************************************************************/
330 static int us_one_transfer(struct us_data
*us
, int pipe
, char *buf
, int length
)
339 /* determine the maximum packet size for these transfers */
340 max_size
= usb_maxpacket(us
->pusb_dev
, pipe
) * 16;
342 /* while we have data left to transfer */
345 /* calculate how long this will be -- maximum or a remainder */
346 this_xfer
= length
> max_size
? max_size
: length
;
349 /* setup the retry counter */
352 /* set up the transfer loop */
354 /* transfer the data */
355 debug("Bulk xfer 0x%x(%d) try #%d\n",
356 (unsigned int)buf
, this_xfer
, 11 - maxtry
);
357 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, buf
,
359 USB_CNTL_TIMEOUT
* 5);
360 debug("bulk_msg returned %d xferred %d/%d\n",
361 result
, partial
, this_xfer
);
362 if (us
->pusb_dev
->status
!= 0) {
363 /* if we stall, we need to clear it before
367 display_int_status(us
->pusb_dev
->status
);
369 if (us
->pusb_dev
->status
& USB_ST_STALLED
) {
370 debug("stalled ->clearing endpoint" \
371 "halt for pipe 0x%x\n", pipe
);
372 stat
= us
->pusb_dev
->status
;
373 usb_clear_halt(us
->pusb_dev
, pipe
);
374 us
->pusb_dev
->status
= stat
;
375 if (this_xfer
== partial
) {
376 debug("bulk transferred" \
379 us
->pusb_dev
->status
);
385 if (us
->pusb_dev
->status
& USB_ST_NAK_REC
) {
386 debug("Device NAKed bulk_msg\n");
389 debug("bulk transferred with error");
390 if (this_xfer
== partial
) {
391 debug(" %ld, but data ok\n",
392 us
->pusb_dev
->status
);
395 /* if our try counter reaches 0, bail out */
396 debug(" %ld, data %d\n",
397 us
->pusb_dev
->status
, partial
);
401 /* update to show what data was transferred */
402 this_xfer
-= partial
;
404 /* continue until this transfer is done */
408 /* if we get here, we're done and successful */
412 static int usb_stor_BBB_reset(struct us_data
*us
)
418 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
420 * For Reset Recovery the host shall issue in the following order:
421 * a) a Bulk-Only Mass Storage Reset
422 * b) a Clear Feature HALT to the Bulk-In endpoint
423 * c) a Clear Feature HALT to the Bulk-Out endpoint
425 * This is done in 3 steps.
427 * If the reset doesn't succeed, the device should be port reset.
429 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
431 debug("BBB_reset\n");
432 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
434 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
435 0, us
->ifnum
, NULL
, 0, USB_CNTL_TIMEOUT
* 5);
437 if ((result
< 0) && (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
438 debug("RESET:stall\n");
442 /* long wait for reset */
444 debug("BBB_reset result %d: status %lX reset\n",
445 result
, us
->pusb_dev
->status
);
446 pipe
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
447 result
= usb_clear_halt(us
->pusb_dev
, pipe
);
448 /* long wait for reset */
450 debug("BBB_reset result %d: status %lX clearing IN endpoint\n",
451 result
, us
->pusb_dev
->status
);
452 /* long wait for reset */
453 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
454 result
= usb_clear_halt(us
->pusb_dev
, pipe
);
456 debug("BBB_reset result %d: status %lX clearing OUT endpoint\n",
457 result
, us
->pusb_dev
->status
);
458 debug("BBB_reset done\n");
462 /* FIXME: this reset function doesn't really reset the port, and it
463 * should. Actually it should probably do what it's doing here, and
464 * reset the port physically
466 static int usb_stor_CB_reset(struct us_data
*us
)
468 unsigned char cmd
[12];
472 memset(cmd
, 0xff, sizeof(cmd
));
473 cmd
[0] = SCSI_SEND_DIAG
;
475 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
477 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
478 0, us
->ifnum
, cmd
, sizeof(cmd
),
479 USB_CNTL_TIMEOUT
* 5);
481 /* long wait for reset */
483 debug("CB_reset result %d: status %lX clearing endpoint halt\n",
484 result
, us
->pusb_dev
->status
);
485 usb_clear_halt(us
->pusb_dev
, usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
));
486 usb_clear_halt(us
->pusb_dev
, usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_out
));
488 debug("CB_reset done\n");
493 * Set up the command for a BBB device. Note that the actual SCSI
494 * command is copied into cbw.CBWCDB.
496 static int usb_stor_BBB_comdat(ccb
*srb
, struct us_data
*us
)
502 ALLOC_CACHE_ALIGN_BUFFER(umass_bbb_cbw_t
, cbw
, 1);
504 dir_in
= US_DIRECTION(srb
->cmd
[0]);
506 #ifdef BBB_COMDAT_TRACE
507 printf("dir %d lun %d cmdlen %d cmd %p datalen %lu pdata %p\n",
508 dir_in
, srb
->lun
, srb
->cmdlen
, srb
->cmd
, srb
->datalen
,
511 for (result
= 0; result
< srb
->cmdlen
; result
++)
512 printf("cmd[%d] %#x ", result
, srb
->cmd
[result
]);
517 if (!(srb
->cmdlen
<= CBWCDBLENGTH
)) {
518 debug("usb_stor_BBB_comdat:cmdlen too large\n");
522 /* always OUT to the ep */
523 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
525 cbw
->dCBWSignature
= cpu_to_le32(CBWSIGNATURE
);
526 cbw
->dCBWTag
= cpu_to_le32(CBWTag
++);
527 cbw
->dCBWDataTransferLength
= cpu_to_le32(srb
->datalen
);
528 cbw
->bCBWFlags
= (dir_in
? CBWFLAGS_IN
: CBWFLAGS_OUT
);
529 cbw
->bCBWLUN
= srb
->lun
;
530 cbw
->bCDBLength
= srb
->cmdlen
;
531 /* copy the command data into the CBW command data buffer */
533 memcpy(cbw
->CBWCDB
, srb
->cmd
, srb
->cmdlen
);
534 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, cbw
, UMASS_BBB_CBW_SIZE
,
535 &actlen
, USB_CNTL_TIMEOUT
* 5);
537 debug("usb_stor_BBB_comdat:usb_bulk_msg error\n");
541 /* FIXME: we also need a CBI_command which sets up the completion
542 * interrupt, and waits for it
544 static int usb_stor_CB_comdat(ccb
*srb
, struct us_data
*us
)
549 unsigned long status
;
552 dir_in
= US_DIRECTION(srb
->cmd
[0]);
555 pipe
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
557 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
560 debug("CBI gets a command: Try %d\n", 5 - retry
);
564 /* let's send the command via the control pipe */
565 result
= usb_control_msg(us
->pusb_dev
,
566 usb_sndctrlpipe(us
->pusb_dev
, 0),
568 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
570 srb
->cmd
, srb
->cmdlen
,
571 USB_CNTL_TIMEOUT
* 5);
572 debug("CB_transport: control msg returned %d, status %lX\n",
573 result
, us
->pusb_dev
->status
);
574 /* check the return code for the command */
576 if (us
->pusb_dev
->status
& USB_ST_STALLED
) {
577 status
= us
->pusb_dev
->status
;
578 debug(" stall during command found," \
580 usb_clear_halt(us
->pusb_dev
,
581 usb_sndctrlpipe(us
->pusb_dev
, 0));
582 us
->pusb_dev
->status
= status
;
584 debug(" error during command %02X" \
585 " Stat = %lX\n", srb
->cmd
[0],
586 us
->pusb_dev
->status
);
589 /* transfer the data payload for this command, if one exists*/
591 debug("CB_transport: control msg returned %d," \
592 " direction is %s to go 0x%lx\n", result
,
593 dir_in
? "IN" : "OUT", srb
->datalen
);
595 result
= us_one_transfer(us
, pipe
, (char *)srb
->pdata
,
597 debug("CBI attempted to transfer data," \
598 " result is %d status %lX, len %d\n",
599 result
, us
->pusb_dev
->status
,
600 us
->pusb_dev
->act_len
);
601 if (!(us
->pusb_dev
->status
& USB_ST_NAK_REC
))
603 } /* if (srb->datalen) */
613 static int usb_stor_CBI_get_status(ccb
*srb
, struct us_data
*us
)
618 submit_int_msg(us
->pusb_dev
, us
->irqpipe
,
619 (void *) &us
->ip_data
, us
->irqmaxp
, us
->irqinterval
);
622 if ((volatile int *) us
->ip_wanted
== NULL
)
627 printf(" Did not get interrupt on CBI\n");
629 return USB_STOR_TRANSPORT_ERROR
;
631 debug("Got interrupt data 0x%x, transfered %d status 0x%lX\n",
632 us
->ip_data
, us
->pusb_dev
->irq_act_len
,
633 us
->pusb_dev
->irq_status
);
634 /* UFI gives us ASC and ASCQ, like a request sense */
635 if (us
->subclass
== US_SC_UFI
) {
636 if (srb
->cmd
[0] == SCSI_REQ_SENSE
||
637 srb
->cmd
[0] == SCSI_INQUIRY
)
638 return USB_STOR_TRANSPORT_GOOD
; /* Good */
639 else if (us
->ip_data
)
640 return USB_STOR_TRANSPORT_FAILED
;
642 return USB_STOR_TRANSPORT_GOOD
;
644 /* otherwise, we interpret the data normally */
645 switch (us
->ip_data
) {
647 return USB_STOR_TRANSPORT_GOOD
;
649 return USB_STOR_TRANSPORT_FAILED
;
651 return USB_STOR_TRANSPORT_ERROR
;
653 return USB_STOR_TRANSPORT_ERROR
;
656 #define USB_TRANSPORT_UNKNOWN_RETRY 5
657 #define USB_TRANSPORT_NOT_READY_RETRY 10
659 /* clear a stall on an endpoint - special for BBB devices */
660 static int usb_stor_BBB_clear_endpt_stall(struct us_data
*us
, __u8 endpt
)
664 /* ENDPOINT_HALT = 0, so set value to 0 */
665 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
666 USB_REQ_CLEAR_FEATURE
, USB_RECIP_ENDPOINT
,
667 0, endpt
, NULL
, 0, USB_CNTL_TIMEOUT
* 5);
671 static int usb_stor_BBB_transport(ccb
*srb
, struct us_data
*us
)
675 int actlen
, data_actlen
;
676 unsigned int pipe
, pipein
, pipeout
;
677 ALLOC_CACHE_ALIGN_BUFFER(umass_bbb_csw_t
, csw
, 1);
678 #ifdef BBB_XPORT_TRACE
683 dir_in
= US_DIRECTION(srb
->cmd
[0]);
686 debug("COMMAND phase\n");
687 result
= usb_stor_BBB_comdat(srb
, us
);
689 debug("failed to send CBW status %ld\n",
690 us
->pusb_dev
->status
);
691 usb_stor_BBB_reset(us
);
692 return USB_STOR_TRANSPORT_FAILED
;
694 if (!(us
->flags
& USB_READY
))
696 pipein
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
697 pipeout
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
698 /* DATA phase + error handling */
700 /* no data, go immediately to the STATUS phase */
701 if (srb
->datalen
== 0)
703 debug("DATA phase\n");
708 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, srb
->pdata
, srb
->datalen
,
709 &data_actlen
, USB_CNTL_TIMEOUT
* 5);
710 /* special handling of STALL in DATA phase */
711 if ((result
< 0) && (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
712 debug("DATA:stall\n");
713 /* clear the STALL on the endpoint */
714 result
= usb_stor_BBB_clear_endpt_stall(us
,
715 dir_in
? us
->ep_in
: us
->ep_out
);
717 /* continue on to STATUS phase */
721 debug("usb_bulk_msg error status %ld\n",
722 us
->pusb_dev
->status
);
723 usb_stor_BBB_reset(us
);
724 return USB_STOR_TRANSPORT_FAILED
;
726 #ifdef BBB_XPORT_TRACE
727 for (index
= 0; index
< data_actlen
; index
++)
728 printf("pdata[%d] %#x ", index
, srb
->pdata
[index
]);
731 /* STATUS phase + error handling */
735 debug("STATUS phase\n");
736 result
= usb_bulk_msg(us
->pusb_dev
, pipein
, csw
, UMASS_BBB_CSW_SIZE
,
737 &actlen
, USB_CNTL_TIMEOUT
*5);
739 /* special handling of STALL in STATUS phase */
740 if ((result
< 0) && (retry
< 1) &&
741 (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
742 debug("STATUS:stall\n");
743 /* clear the STALL on the endpoint */
744 result
= usb_stor_BBB_clear_endpt_stall(us
, us
->ep_in
);
745 if (result
>= 0 && (retry
++ < 1))
750 debug("usb_bulk_msg error status %ld\n",
751 us
->pusb_dev
->status
);
752 usb_stor_BBB_reset(us
);
753 return USB_STOR_TRANSPORT_FAILED
;
755 #ifdef BBB_XPORT_TRACE
756 ptr
= (unsigned char *)csw
;
757 for (index
= 0; index
< UMASS_BBB_CSW_SIZE
; index
++)
758 printf("ptr[%d] %#x ", index
, ptr
[index
]);
761 /* misuse pipe to get the residue */
762 pipe
= le32_to_cpu(csw
->dCSWDataResidue
);
763 if (pipe
== 0 && srb
->datalen
!= 0 && srb
->datalen
- data_actlen
!= 0)
764 pipe
= srb
->datalen
- data_actlen
;
765 if (CSWSIGNATURE
!= le32_to_cpu(csw
->dCSWSignature
)) {
766 debug("!CSWSIGNATURE\n");
767 usb_stor_BBB_reset(us
);
768 return USB_STOR_TRANSPORT_FAILED
;
769 } else if ((CBWTag
- 1) != le32_to_cpu(csw
->dCSWTag
)) {
771 usb_stor_BBB_reset(us
);
772 return USB_STOR_TRANSPORT_FAILED
;
773 } else if (csw
->bCSWStatus
> CSWSTATUS_PHASE
) {
775 usb_stor_BBB_reset(us
);
776 return USB_STOR_TRANSPORT_FAILED
;
777 } else if (csw
->bCSWStatus
== CSWSTATUS_PHASE
) {
779 usb_stor_BBB_reset(us
);
780 return USB_STOR_TRANSPORT_FAILED
;
781 } else if (data_actlen
> srb
->datalen
) {
782 debug("transferred %dB instead of %ldB\n",
783 data_actlen
, srb
->datalen
);
784 return USB_STOR_TRANSPORT_FAILED
;
785 } else if (csw
->bCSWStatus
== CSWSTATUS_FAILED
) {
787 return USB_STOR_TRANSPORT_FAILED
;
793 static int usb_stor_CB_transport(ccb
*srb
, struct us_data
*us
)
801 status
= USB_STOR_TRANSPORT_GOOD
;
804 /* issue the command */
806 result
= usb_stor_CB_comdat(srb
, us
);
807 debug("command / Data returned %d, status %lX\n",
808 result
, us
->pusb_dev
->status
);
809 /* if this is an CBI Protocol, get IRQ */
810 if (us
->protocol
== US_PR_CBI
) {
811 status
= usb_stor_CBI_get_status(srb
, us
);
812 /* if the status is error, report it */
813 if (status
== USB_STOR_TRANSPORT_ERROR
) {
814 debug(" USB CBI Command Error\n");
817 srb
->sense_buf
[12] = (unsigned char)(us
->ip_data
>> 8);
818 srb
->sense_buf
[13] = (unsigned char)(us
->ip_data
& 0xff);
820 /* if the status is good, report it */
821 if (status
== USB_STOR_TRANSPORT_GOOD
) {
822 debug(" USB CBI Command Good\n");
827 /* do we have to issue an auto request? */
828 /* HERE we have to check the result */
829 if ((result
< 0) && !(us
->pusb_dev
->status
& USB_ST_STALLED
)) {
830 debug("ERROR %lX\n", us
->pusb_dev
->status
);
831 us
->transport_reset(us
);
832 return USB_STOR_TRANSPORT_ERROR
;
834 if ((us
->protocol
== US_PR_CBI
) &&
835 ((srb
->cmd
[0] == SCSI_REQ_SENSE
) ||
836 (srb
->cmd
[0] == SCSI_INQUIRY
))) {
837 /* do not issue an autorequest after request sense */
838 debug("No auto request and good\n");
839 return USB_STOR_TRANSPORT_GOOD
;
841 /* issue an request_sense */
842 memset(&psrb
->cmd
[0], 0, 12);
843 psrb
->cmd
[0] = SCSI_REQ_SENSE
;
844 psrb
->cmd
[1] = srb
->lun
<< 5;
847 psrb
->pdata
= &srb
->sense_buf
[0];
849 /* issue the command */
850 result
= usb_stor_CB_comdat(psrb
, us
);
851 debug("auto request returned %d\n", result
);
852 /* if this is an CBI Protocol, get IRQ */
853 if (us
->protocol
== US_PR_CBI
)
854 status
= usb_stor_CBI_get_status(psrb
, us
);
856 if ((result
< 0) && !(us
->pusb_dev
->status
& USB_ST_STALLED
)) {
857 debug(" AUTO REQUEST ERROR %ld\n",
858 us
->pusb_dev
->status
);
859 return USB_STOR_TRANSPORT_ERROR
;
861 debug("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
862 srb
->sense_buf
[0], srb
->sense_buf
[2],
863 srb
->sense_buf
[12], srb
->sense_buf
[13]);
864 /* Check the auto request result */
865 if ((srb
->sense_buf
[2] == 0) &&
866 (srb
->sense_buf
[12] == 0) &&
867 (srb
->sense_buf
[13] == 0)) {
869 return USB_STOR_TRANSPORT_GOOD
;
872 /* Check the auto request result */
873 switch (srb
->sense_buf
[2]) {
875 /* Recovered Error */
876 return USB_STOR_TRANSPORT_GOOD
;
880 if (notready
++ > USB_TRANSPORT_NOT_READY_RETRY
) {
881 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
882 " 0x%02X (NOT READY)\n", srb
->cmd
[0],
883 srb
->sense_buf
[0], srb
->sense_buf
[2],
884 srb
->sense_buf
[12], srb
->sense_buf
[13]);
885 return USB_STOR_TRANSPORT_FAILED
;
892 if (retry
++ > USB_TRANSPORT_UNKNOWN_RETRY
) {
893 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
894 " 0x%02X\n", srb
->cmd
[0], srb
->sense_buf
[0],
895 srb
->sense_buf
[2], srb
->sense_buf
[12],
897 return USB_STOR_TRANSPORT_FAILED
;
902 return USB_STOR_TRANSPORT_FAILED
;
906 static int usb_inquiry(ccb
*srb
, struct us_data
*ss
)
911 memset(&srb
->cmd
[0], 0, 12);
912 srb
->cmd
[0] = SCSI_INQUIRY
;
913 srb
->cmd
[1] = srb
->lun
<< 5;
917 i
= ss
->transport(srb
, ss
);
918 debug("inquiry returns %d\n", i
);
924 printf("error in inquiry\n");
930 static int usb_request_sense(ccb
*srb
, struct us_data
*ss
)
934 ptr
= (char *)srb
->pdata
;
935 memset(&srb
->cmd
[0], 0, 12);
936 srb
->cmd
[0] = SCSI_REQ_SENSE
;
937 srb
->cmd
[1] = srb
->lun
<< 5;
940 srb
->pdata
= &srb
->sense_buf
[0];
942 ss
->transport(srb
, ss
);
943 debug("Request Sense returned %02X %02X %02X\n",
944 srb
->sense_buf
[2], srb
->sense_buf
[12],
946 srb
->pdata
= (uchar
*)ptr
;
950 static int usb_test_unit_ready(ccb
*srb
, struct us_data
*ss
)
955 memset(&srb
->cmd
[0], 0, 12);
956 srb
->cmd
[0] = SCSI_TST_U_RDY
;
957 srb
->cmd
[1] = srb
->lun
<< 5;
960 if (ss
->transport(srb
, ss
) == USB_STOR_TRANSPORT_GOOD
) {
961 ss
->flags
|= USB_READY
;
964 usb_request_sense(srb
, ss
);
966 * Check the Key Code Qualifier, if it matches
967 * "Not Ready - medium not present"
968 * (the sense Key equals 0x2 and the ASC is 0x3a)
969 * return immediately as the medium being absent won't change
970 * unless there is a user action.
972 if ((srb
->sense_buf
[2] == 0x02) &&
973 (srb
->sense_buf
[12] == 0x3a))
981 static int usb_read_capacity(ccb
*srb
, struct us_data
*ss
)
987 memset(&srb
->cmd
[0], 0, 12);
988 srb
->cmd
[0] = SCSI_RD_CAPAC
;
989 srb
->cmd
[1] = srb
->lun
<< 5;
992 if (ss
->transport(srb
, ss
) == USB_STOR_TRANSPORT_GOOD
)
999 static int usb_read_10(ccb
*srb
, struct us_data
*ss
, unsigned long start
,
1000 unsigned short blocks
)
1002 memset(&srb
->cmd
[0], 0, 12);
1003 srb
->cmd
[0] = SCSI_READ10
;
1004 srb
->cmd
[1] = srb
->lun
<< 5;
1005 srb
->cmd
[2] = ((unsigned char) (start
>> 24)) & 0xff;
1006 srb
->cmd
[3] = ((unsigned char) (start
>> 16)) & 0xff;
1007 srb
->cmd
[4] = ((unsigned char) (start
>> 8)) & 0xff;
1008 srb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
1009 srb
->cmd
[7] = ((unsigned char) (blocks
>> 8)) & 0xff;
1010 srb
->cmd
[8] = (unsigned char) blocks
& 0xff;
1012 debug("read10: start %lx blocks %x\n", start
, blocks
);
1013 return ss
->transport(srb
, ss
);
1016 static int usb_write_10(ccb
*srb
, struct us_data
*ss
, unsigned long start
,
1017 unsigned short blocks
)
1019 memset(&srb
->cmd
[0], 0, 12);
1020 srb
->cmd
[0] = SCSI_WRITE10
;
1021 srb
->cmd
[1] = srb
->lun
<< 5;
1022 srb
->cmd
[2] = ((unsigned char) (start
>> 24)) & 0xff;
1023 srb
->cmd
[3] = ((unsigned char) (start
>> 16)) & 0xff;
1024 srb
->cmd
[4] = ((unsigned char) (start
>> 8)) & 0xff;
1025 srb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
1026 srb
->cmd
[7] = ((unsigned char) (blocks
>> 8)) & 0xff;
1027 srb
->cmd
[8] = (unsigned char) blocks
& 0xff;
1029 debug("write10: start %lx blocks %x\n", start
, blocks
);
1030 return ss
->transport(srb
, ss
);
1034 #ifdef CONFIG_USB_BIN_FIXUP
1036 * Some USB storage devices queried for SCSI identification data respond with
1037 * binary strings, which if output to the console freeze the terminal. The
1038 * workaround is to modify the vendor and product strings read from such
1039 * device with proper values (as reported by 'usb info').
1041 * Vendor and product length limits are taken from the definition of
1042 * block_dev_desc_t in include/part.h.
1044 static void usb_bin_fixup(struct usb_device_descriptor descriptor
,
1045 unsigned char vendor
[],
1046 unsigned char product
[]) {
1047 const unsigned char max_vendor_len
= 40;
1048 const unsigned char max_product_len
= 20;
1049 if (descriptor
.idVendor
== 0x0424 && descriptor
.idProduct
== 0x223a) {
1050 strncpy((char *)vendor
, "SMSC", max_vendor_len
);
1051 strncpy((char *)product
, "Flash Media Cntrller",
1055 #endif /* CONFIG_USB_BIN_FIXUP */
1057 unsigned long usb_stor_read(int device
, unsigned long blknr
,
1058 lbaint_t blkcnt
, void *buffer
)
1060 lbaint_t start
, blks
;
1062 unsigned short smallblks
;
1063 struct usb_device
*dev
;
1066 ccb
*srb
= &usb_ccb
;
1073 debug("\nusb_read: dev %d \n", device
);
1075 for (i
= 0; i
< USB_MAX_DEVICE
; i
++) {
1076 dev
= usb_get_dev_index(i
);
1079 if (dev
->devnum
== usb_dev_desc
[device
].target
)
1082 ss
= (struct us_data
*)dev
->privptr
;
1084 usb_disable_asynch(1); /* asynch transfer not allowed */
1085 srb
->lun
= usb_dev_desc
[device
].lun
;
1086 buf_addr
= (unsigned long)buffer
;
1090 debug("\nusb_read: dev %d startblk " LBAF
", blccnt " LBAF
1091 " buffer %lx\n", device
, start
, blks
, buf_addr
);
1094 /* XXX need some comment here */
1096 srb
->pdata
= (unsigned char *)buf_addr
;
1097 if (blks
> USB_MAX_XFER_BLK
)
1098 smallblks
= USB_MAX_XFER_BLK
;
1100 smallblks
= (unsigned short) blks
;
1102 if (smallblks
== USB_MAX_XFER_BLK
)
1103 usb_show_progress();
1104 srb
->datalen
= usb_dev_desc
[device
].blksz
* smallblks
;
1105 srb
->pdata
= (unsigned char *)buf_addr
;
1106 if (usb_read_10(srb
, ss
, start
, smallblks
)) {
1107 debug("Read ERROR\n");
1108 usb_request_sense(srb
, ss
);
1116 buf_addr
+= srb
->datalen
;
1117 } while (blks
!= 0);
1118 ss
->flags
&= ~USB_READY
;
1120 debug("usb_read: end startblk " LBAF
1121 ", blccnt %x buffer %lx\n",
1122 start
, smallblks
, buf_addr
);
1124 usb_disable_asynch(0); /* asynch transfer allowed */
1125 if (blkcnt
>= USB_MAX_XFER_BLK
)
1130 unsigned long usb_stor_write(int device
, unsigned long blknr
,
1131 lbaint_t blkcnt
, const void *buffer
)
1133 lbaint_t start
, blks
;
1135 unsigned short smallblks
;
1136 struct usb_device
*dev
;
1139 ccb
*srb
= &usb_ccb
;
1146 debug("\nusb_write: dev %d \n", device
);
1148 for (i
= 0; i
< USB_MAX_DEVICE
; i
++) {
1149 dev
= usb_get_dev_index(i
);
1152 if (dev
->devnum
== usb_dev_desc
[device
].target
)
1155 ss
= (struct us_data
*)dev
->privptr
;
1157 usb_disable_asynch(1); /* asynch transfer not allowed */
1159 srb
->lun
= usb_dev_desc
[device
].lun
;
1160 buf_addr
= (unsigned long)buffer
;
1164 debug("\nusb_write: dev %d startblk " LBAF
", blccnt " LBAF
1165 " buffer %lx\n", device
, start
, blks
, buf_addr
);
1168 /* If write fails retry for max retry count else
1169 * return with number of blocks written successfully.
1172 srb
->pdata
= (unsigned char *)buf_addr
;
1173 if (blks
> USB_MAX_XFER_BLK
)
1174 smallblks
= USB_MAX_XFER_BLK
;
1176 smallblks
= (unsigned short) blks
;
1178 if (smallblks
== USB_MAX_XFER_BLK
)
1179 usb_show_progress();
1180 srb
->datalen
= usb_dev_desc
[device
].blksz
* smallblks
;
1181 srb
->pdata
= (unsigned char *)buf_addr
;
1182 if (usb_write_10(srb
, ss
, start
, smallblks
)) {
1183 debug("Write ERROR\n");
1184 usb_request_sense(srb
, ss
);
1192 buf_addr
+= srb
->datalen
;
1193 } while (blks
!= 0);
1194 ss
->flags
&= ~USB_READY
;
1196 debug("usb_write: end startblk " LBAF
", blccnt %x buffer %lx\n",
1197 start
, smallblks
, buf_addr
);
1199 usb_disable_asynch(0); /* asynch transfer allowed */
1200 if (blkcnt
>= USB_MAX_XFER_BLK
)
1206 /* Probe to see if a new device is actually a Storage device */
1207 int usb_storage_probe(struct usb_device
*dev
, unsigned int ifnum
,
1210 struct usb_interface
*iface
;
1212 struct usb_endpoint_descriptor
*ep_desc
;
1213 unsigned int flags
= 0;
1218 /* let's examine the device now */
1219 iface
= &dev
->config
.if_desc
[ifnum
];
1222 /* this is the place to patch some storage devices */
1223 debug("iVendor %X iProduct %X\n", dev
->descriptor
.idVendor
,
1224 dev
->descriptor
.idProduct
);
1226 if ((dev
->descriptor
.idVendor
) == 0x066b &&
1227 (dev
->descriptor
.idProduct
) == 0x0103) {
1228 debug("patched for E-USB\n");
1229 protocol
= US_PR_CB
;
1230 subclass
= US_SC_UFI
; /* an assumption */
1234 if (dev
->descriptor
.bDeviceClass
!= 0 ||
1235 iface
->desc
.bInterfaceClass
!= USB_CLASS_MASS_STORAGE
||
1236 iface
->desc
.bInterfaceSubClass
< US_SC_MIN
||
1237 iface
->desc
.bInterfaceSubClass
> US_SC_MAX
) {
1238 /* if it's not a mass storage, we go no further */
1242 memset(ss
, 0, sizeof(struct us_data
));
1244 /* At this point, we know we've got a live one */
1245 debug("\n\nUSB Mass Storage device detected\n");
1247 /* Initialize the us_data structure with some useful info */
1251 ss
->attention_done
= 0;
1253 /* If the device has subclass and protocol, then use that. Otherwise,
1254 * take data from the specific interface.
1257 ss
->subclass
= subclass
;
1258 ss
->protocol
= protocol
;
1260 ss
->subclass
= iface
->desc
.bInterfaceSubClass
;
1261 ss
->protocol
= iface
->desc
.bInterfaceProtocol
;
1264 /* set the handler pointers based on the protocol */
1265 debug("Transport: ");
1266 switch (ss
->protocol
) {
1268 debug("Control/Bulk\n");
1269 ss
->transport
= usb_stor_CB_transport
;
1270 ss
->transport_reset
= usb_stor_CB_reset
;
1274 debug("Control/Bulk/Interrupt\n");
1275 ss
->transport
= usb_stor_CB_transport
;
1276 ss
->transport_reset
= usb_stor_CB_reset
;
1279 debug("Bulk/Bulk/Bulk\n");
1280 ss
->transport
= usb_stor_BBB_transport
;
1281 ss
->transport_reset
= usb_stor_BBB_reset
;
1284 printf("USB Storage Transport unknown / not yet implemented\n");
1290 * We are expecting a minimum of 2 endpoints - in and out (bulk).
1291 * An optional interrupt is OK (necessary for CBI protocol).
1292 * We will ignore any others.
1294 for (i
= 0; i
< iface
->desc
.bNumEndpoints
; i
++) {
1295 ep_desc
= &iface
->ep_desc
[i
];
1296 /* is it an BULK endpoint? */
1297 if ((ep_desc
->bmAttributes
&
1298 USB_ENDPOINT_XFERTYPE_MASK
) == USB_ENDPOINT_XFER_BULK
) {
1299 if (ep_desc
->bEndpointAddress
& USB_DIR_IN
)
1300 ss
->ep_in
= ep_desc
->bEndpointAddress
&
1301 USB_ENDPOINT_NUMBER_MASK
;
1304 ep_desc
->bEndpointAddress
&
1305 USB_ENDPOINT_NUMBER_MASK
;
1308 /* is it an interrupt endpoint? */
1309 if ((ep_desc
->bmAttributes
&
1310 USB_ENDPOINT_XFERTYPE_MASK
) == USB_ENDPOINT_XFER_INT
) {
1311 ss
->ep_int
= ep_desc
->bEndpointAddress
&
1312 USB_ENDPOINT_NUMBER_MASK
;
1313 ss
->irqinterval
= ep_desc
->bInterval
;
1316 debug("Endpoints In %d Out %d Int %d\n",
1317 ss
->ep_in
, ss
->ep_out
, ss
->ep_int
);
1319 /* Do some basic sanity checks, and bail if we find a problem */
1320 if (usb_set_interface(dev
, iface
->desc
.bInterfaceNumber
, 0) ||
1321 !ss
->ep_in
|| !ss
->ep_out
||
1322 (ss
->protocol
== US_PR_CBI
&& ss
->ep_int
== 0)) {
1323 debug("Problems with device\n");
1326 /* set class specific stuff */
1327 /* We only handle certain protocols. Currently, these are
1329 * The SFF8070 accepts the requests used in u-boot
1331 if (ss
->subclass
!= US_SC_UFI
&& ss
->subclass
!= US_SC_SCSI
&&
1332 ss
->subclass
!= US_SC_8070
) {
1333 printf("Sorry, protocol %d not yet supported.\n", ss
->subclass
);
1337 /* we had found an interrupt endpoint, prepare irq pipe
1338 * set up the IRQ pipe and handler
1340 ss
->irqinterval
= (ss
->irqinterval
> 0) ? ss
->irqinterval
: 255;
1341 ss
->irqpipe
= usb_rcvintpipe(ss
->pusb_dev
, ss
->ep_int
);
1342 ss
->irqmaxp
= usb_maxpacket(dev
, ss
->irqpipe
);
1343 dev
->irq_handle
= usb_stor_irq
;
1345 dev
->privptr
= (void *)ss
;
1349 int usb_stor_get_info(struct usb_device
*dev
, struct us_data
*ss
,
1350 block_dev_desc_t
*dev_desc
)
1352 unsigned char perq
, modi
;
1353 ALLOC_CACHE_ALIGN_BUFFER(unsigned long, cap
, 2);
1354 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, usb_stor_buf
, 36);
1355 unsigned long *capacity
, *blksz
;
1356 ccb
*pccb
= &usb_ccb
;
1358 pccb
->pdata
= usb_stor_buf
;
1360 dev_desc
->target
= dev
->devnum
;
1361 pccb
->lun
= dev_desc
->lun
;
1362 debug(" address %d\n", dev_desc
->target
);
1364 if (usb_inquiry(pccb
, ss
))
1367 perq
= usb_stor_buf
[0];
1368 modi
= usb_stor_buf
[1];
1370 if ((perq
& 0x1f) == 0x1f) {
1371 /* skip unknown devices */
1374 if ((modi
&0x80) == 0x80) {
1375 /* drive is removable */
1376 dev_desc
->removable
= 1;
1378 memcpy(&dev_desc
->vendor
[0], (const void *) &usb_stor_buf
[8], 8);
1379 memcpy(&dev_desc
->product
[0], (const void *) &usb_stor_buf
[16], 16);
1380 memcpy(&dev_desc
->revision
[0], (const void *) &usb_stor_buf
[32], 4);
1381 dev_desc
->vendor
[8] = 0;
1382 dev_desc
->product
[16] = 0;
1383 dev_desc
->revision
[4] = 0;
1384 #ifdef CONFIG_USB_BIN_FIXUP
1385 usb_bin_fixup(dev
->descriptor
, (uchar
*)dev_desc
->vendor
,
1386 (uchar
*)dev_desc
->product
);
1387 #endif /* CONFIG_USB_BIN_FIXUP */
1388 debug("ISO Vers %X, Response Data %X\n", usb_stor_buf
[2],
1390 if (usb_test_unit_ready(pccb
, ss
)) {
1391 printf("Device NOT ready\n"
1392 " Request Sense returned %02X %02X %02X\n",
1393 pccb
->sense_buf
[2], pccb
->sense_buf
[12],
1394 pccb
->sense_buf
[13]);
1395 if (dev_desc
->removable
== 1) {
1396 dev_desc
->type
= perq
;
1401 pccb
->pdata
= (unsigned char *)&cap
[0];
1402 memset(pccb
->pdata
, 0, 8);
1403 if (usb_read_capacity(pccb
, ss
) != 0) {
1404 printf("READ_CAP ERROR\n");
1408 ss
->flags
&= ~USB_READY
;
1409 debug("Read Capacity returns: 0x%lx, 0x%lx\n", cap
[0], cap
[1]);
1411 if (cap
[0] > (0x200000 * 10)) /* greater than 10 GByte */
1414 cap
[0] = cpu_to_be32(cap
[0]);
1415 cap
[1] = cpu_to_be32(cap
[1]);
1417 /* this assumes bigendian! */
1421 debug("Capacity = 0x%lx, blocksz = 0x%lx\n", *capacity
, *blksz
);
1422 dev_desc
->lba
= *capacity
;
1423 dev_desc
->blksz
= *blksz
;
1424 dev_desc
->log2blksz
= LOG2(dev_desc
->blksz
);
1425 dev_desc
->type
= perq
;
1426 debug(" address %d\n", dev_desc
->target
);
1427 debug("partype: %d\n", dev_desc
->part_type
);
1429 init_part(dev_desc
);
1431 debug("partype: %d\n", dev_desc
->part_type
);