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
12 * Driver model conversion:
13 * (C) Copyright 2015 Google, Inc
15 * For BBB support (C) Copyright 2003
16 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
18 * BBB support based on /sys/dev/usb/umass.c from
21 * SPDX-License-Identifier: GPL-2.0+
25 * Currently only the CBI transport protocoll has been implemented, and it
26 * is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
27 * transport protocoll may work as well.
31 * Support for USB Mass Storage Devices (BBB) has been added. It has
32 * only been tested with USB memory sticks.
43 #include <asm/byteorder.h>
44 #include <asm/processor.h>
45 #include <dm/device-internal.h>
51 #undef BBB_COMDAT_TRACE
52 #undef BBB_XPORT_TRACE
55 /* direction table -- this indicates the direction of the data
56 * transfer for each command code -- a 1 indicates input
58 static const unsigned char us_direction
[256/8] = {
59 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
60 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
61 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
62 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
64 #define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
66 static ccb usb_ccb
__attribute__((aligned(ARCH_DMA_MINALIGN
)));
69 static int usb_max_devs
; /* number of highest available usb device */
72 static struct blk_desc usb_dev_desc
[USB_MAX_STOR_DEV
];
76 typedef int (*trans_cmnd
)(ccb
*cb
, struct us_data
*data
);
77 typedef int (*trans_reset
)(struct us_data
*data
);
80 struct usb_device
*pusb_dev
; /* this usb_device */
82 unsigned int flags
; /* from filter initially */
83 # define USB_READY (1 << 0)
84 unsigned char ifnum
; /* interface number */
85 unsigned char ep_in
; /* in endpoint */
86 unsigned char ep_out
; /* out ....... */
87 unsigned char ep_int
; /* interrupt . */
88 unsigned char subclass
; /* as in overview */
89 unsigned char protocol
; /* .............. */
90 unsigned char attention_done
; /* force attn on first cmd */
91 unsigned short ip_data
; /* interrupt data */
92 int action
; /* what to do */
93 int ip_wanted
; /* needed */
94 int *irq_handle
; /* for USB int requests */
95 unsigned int irqpipe
; /* pipe for release_irq */
96 unsigned char irqmaxp
; /* max packed for irq Pipe */
97 unsigned char irqinterval
; /* Intervall for IRQ Pipe */
98 ccb
*srb
; /* current srb */
99 trans_reset transport_reset
; /* reset routine */
100 trans_cmnd transport
; /* transport routine */
103 #ifdef CONFIG_USB_EHCI
105 * The U-Boot EHCI driver can handle any transfer length as long as there is
106 * enough free heap space left, but the SCSI READ(10) and WRITE(10) commands are
107 * limited to 65535 blocks.
109 #define USB_MAX_XFER_BLK 65535
111 #define USB_MAX_XFER_BLK 20
115 static struct us_data usb_stor
[USB_MAX_STOR_DEV
];
118 #define USB_STOR_TRANSPORT_GOOD 0
119 #define USB_STOR_TRANSPORT_FAILED -1
120 #define USB_STOR_TRANSPORT_ERROR -2
122 int usb_stor_get_info(struct usb_device
*dev
, struct us_data
*us
,
123 struct blk_desc
*dev_desc
);
124 int usb_storage_probe(struct usb_device
*dev
, unsigned int ifnum
,
127 static unsigned long usb_stor_read(struct udevice
*dev
, lbaint_t blknr
,
128 lbaint_t blkcnt
, void *buffer
);
129 static unsigned long usb_stor_write(struct udevice
*dev
, lbaint_t blknr
,
130 lbaint_t blkcnt
, const void *buffer
);
132 static unsigned long usb_stor_read(struct blk_desc
*block_dev
, lbaint_t blknr
,
133 lbaint_t blkcnt
, void *buffer
);
134 static unsigned long usb_stor_write(struct blk_desc
*block_dev
, lbaint_t blknr
,
135 lbaint_t blkcnt
, const void *buffer
);
137 void uhci_show_temp_int_td(void);
139 #ifdef CONFIG_PARTITIONS
140 struct blk_desc
*usb_stor_get_dev(int index
)
146 ret
= blk_get_device(IF_TYPE_USB
, index
, &dev
);
149 return dev_get_uclass_platdata(dev
);
151 return (index
< usb_max_devs
) ? &usb_dev_desc
[index
] : NULL
;
156 static void usb_show_progress(void)
161 /*******************************************************************************
162 * show info on storage devices; 'usb start/init' must be invoked earlier
163 * as we only retrieve structures populated during devices initialization
165 int usb_stor_info(void)
171 for (blk_first_device(IF_TYPE_USB
, &dev
);
173 blk_next_device(&dev
)) {
174 struct blk_desc
*desc
= dev_get_uclass_platdata(dev
);
176 printf(" Device %d: ", desc
->devnum
);
183 if (usb_max_devs
> 0) {
184 for (i
= 0; i
< usb_max_devs
; i
++) {
185 printf(" Device %d: ", i
);
186 dev_print(&usb_dev_desc
[i
]);
192 printf("No storage devices, perhaps not 'usb start'ed..?\n");
199 static unsigned int usb_get_max_lun(struct us_data
*us
)
202 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, result
, 1);
203 len
= usb_control_msg(us
->pusb_dev
,
204 usb_rcvctrlpipe(us
->pusb_dev
, 0),
206 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
| USB_DIR_IN
,
208 result
, sizeof(char),
209 USB_CNTL_TIMEOUT
* 5);
210 debug("Get Max LUN -> len = %i, result = %i\n", len
, (int) *result
);
211 return (len
> 0) ? *result
: 0;
214 static int usb_stor_probe_device(struct usb_device
*udev
)
219 struct us_data
*data
;
220 char dev_name
[30], *str
;
226 return -ENOENT
; /* no more devices available */
229 debug("\n\nProbing for storage\n");
232 * We store the us_data in the mass storage device's platdata. It
233 * is shared by all LUNs (block devices) attached to this mass storage
236 data
= dev_get_platdata(udev
->dev
);
237 if (!usb_storage_probe(udev
, 0, data
))
239 max_lun
= usb_get_max_lun(data
);
240 for (lun
= 0; lun
<= max_lun
; lun
++) {
241 struct blk_desc
*blkdev
;
244 snprintf(dev_name
, sizeof(dev_name
), "%s.lun%d",
245 udev
->dev
->name
, lun
);
246 str
= strdup(dev_name
);
249 ret
= blk_create_device(udev
->dev
, "usb_storage_blk", str
,
250 IF_TYPE_USB
, usb_max_devs
, 512, 0, &dev
);
252 debug("Cannot bind driver\n");
256 blkdev
= dev_get_uclass_platdata(dev
);
257 blkdev
->target
= 0xff;
260 ret
= usb_stor_get_info(udev
, data
, blkdev
);
262 ret
= blk_prepare_device(dev
);
265 debug("%s: Found device %p\n", __func__
, udev
);
267 debug("usb_stor_get_info: Invalid device\n");
268 ret
= device_unbind(dev
);
274 /* We don't have space to even probe if we hit the maximum */
275 if (usb_max_devs
== USB_MAX_STOR_DEV
) {
276 printf("max USB Storage Device reached: %d stopping\n",
281 if (!usb_storage_probe(udev
, 0, &usb_stor
[usb_max_devs
]))
285 * OK, it's a storage device. Iterate over its LUNs and populate
288 start
= usb_max_devs
;
290 max_lun
= usb_get_max_lun(&usb_stor
[usb_max_devs
]);
291 for (lun
= 0; lun
<= max_lun
&& usb_max_devs
< USB_MAX_STOR_DEV
;
293 struct blk_desc
*blkdev
;
295 blkdev
= &usb_dev_desc
[usb_max_devs
];
296 memset(blkdev
, '\0', sizeof(struct blk_desc
));
297 blkdev
->if_type
= IF_TYPE_USB
;
298 blkdev
->devnum
= usb_max_devs
;
299 blkdev
->part_type
= PART_TYPE_UNKNOWN
;
300 blkdev
->target
= 0xff;
301 blkdev
->type
= DEV_TYPE_UNKNOWN
;
302 blkdev
->block_read
= usb_stor_read
;
303 blkdev
->block_write
= usb_stor_write
;
307 if (usb_stor_get_info(udev
, &usb_stor
[start
],
308 &usb_dev_desc
[usb_max_devs
]) == 1) {
309 debug("partype: %d\n", blkdev
->part_type
);
311 debug("partype: %d\n", blkdev
->part_type
);
313 debug("%s: Found device %p\n", __func__
, udev
);
321 void usb_stor_reset(void)
326 #ifndef CONFIG_DM_USB
327 /*******************************************************************************
328 * scan the usb and reports device info
329 * to the user if mode = 1
330 * returns current device or -1 if no
332 int usb_stor_scan(int mode
)
337 printf(" scanning usb for storage devices... ");
339 usb_disable_asynch(1); /* asynch transfer not allowed */
342 for (i
= 0; i
< USB_MAX_DEVICE
; i
++) {
343 struct usb_device
*dev
;
345 dev
= usb_get_dev_index(i
); /* get device */
347 if (usb_stor_probe_device(dev
))
351 usb_disable_asynch(0); /* asynch transfer allowed */
352 printf("%d Storage Device(s) found\n", usb_max_devs
);
353 if (usb_max_devs
> 0)
359 static int usb_stor_irq(struct usb_device
*dev
)
362 us
= (struct us_data
*)dev
->privptr
;
372 static void usb_show_srb(ccb
*pccb
)
375 printf("SRB: len %d datalen 0x%lX\n ", pccb
->cmdlen
, pccb
->datalen
);
376 for (i
= 0; i
< 12; i
++)
377 printf("%02X ", pccb
->cmd
[i
]);
381 static void display_int_status(unsigned long tmp
)
383 printf("Status: %s %s %s %s %s %s %s\n",
384 (tmp
& USB_ST_ACTIVE
) ? "Active" : "",
385 (tmp
& USB_ST_STALLED
) ? "Stalled" : "",
386 (tmp
& USB_ST_BUF_ERR
) ? "Buffer Error" : "",
387 (tmp
& USB_ST_BABBLE_DET
) ? "Babble Det" : "",
388 (tmp
& USB_ST_NAK_REC
) ? "NAKed" : "",
389 (tmp
& USB_ST_CRC_ERR
) ? "CRC Error" : "",
390 (tmp
& USB_ST_BIT_ERR
) ? "Bitstuff Error" : "");
393 /***********************************************************************
394 * Data transfer routines
395 ***********************************************************************/
397 static int us_one_transfer(struct us_data
*us
, int pipe
, char *buf
, int length
)
406 /* determine the maximum packet size for these transfers */
407 max_size
= usb_maxpacket(us
->pusb_dev
, pipe
) * 16;
409 /* while we have data left to transfer */
412 /* calculate how long this will be -- maximum or a remainder */
413 this_xfer
= length
> max_size
? max_size
: length
;
416 /* setup the retry counter */
419 /* set up the transfer loop */
421 /* transfer the data */
422 debug("Bulk xfer 0x%lx(%d) try #%d\n",
423 (ulong
)map_to_sysmem(buf
), this_xfer
,
425 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, buf
,
427 USB_CNTL_TIMEOUT
* 5);
428 debug("bulk_msg returned %d xferred %d/%d\n",
429 result
, partial
, this_xfer
);
430 if (us
->pusb_dev
->status
!= 0) {
431 /* if we stall, we need to clear it before
435 display_int_status(us
->pusb_dev
->status
);
437 if (us
->pusb_dev
->status
& USB_ST_STALLED
) {
438 debug("stalled ->clearing endpoint" \
439 "halt for pipe 0x%x\n", pipe
);
440 stat
= us
->pusb_dev
->status
;
441 usb_clear_halt(us
->pusb_dev
, pipe
);
442 us
->pusb_dev
->status
= stat
;
443 if (this_xfer
== partial
) {
444 debug("bulk transferred" \
447 us
->pusb_dev
->status
);
453 if (us
->pusb_dev
->status
& USB_ST_NAK_REC
) {
454 debug("Device NAKed bulk_msg\n");
457 debug("bulk transferred with error");
458 if (this_xfer
== partial
) {
459 debug(" %ld, but data ok\n",
460 us
->pusb_dev
->status
);
463 /* if our try counter reaches 0, bail out */
464 debug(" %ld, data %d\n",
465 us
->pusb_dev
->status
, partial
);
469 /* update to show what data was transferred */
470 this_xfer
-= partial
;
472 /* continue until this transfer is done */
476 /* if we get here, we're done and successful */
480 static int usb_stor_BBB_reset(struct us_data
*us
)
486 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
488 * For Reset Recovery the host shall issue in the following order:
489 * a) a Bulk-Only Mass Storage Reset
490 * b) a Clear Feature HALT to the Bulk-In endpoint
491 * c) a Clear Feature HALT to the Bulk-Out endpoint
493 * This is done in 3 steps.
495 * If the reset doesn't succeed, the device should be port reset.
497 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
499 debug("BBB_reset\n");
500 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
502 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
503 0, us
->ifnum
, NULL
, 0, USB_CNTL_TIMEOUT
* 5);
505 if ((result
< 0) && (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
506 debug("RESET:stall\n");
510 /* long wait for reset */
512 debug("BBB_reset result %d: status %lX reset\n",
513 result
, us
->pusb_dev
->status
);
514 pipe
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
515 result
= usb_clear_halt(us
->pusb_dev
, pipe
);
516 /* long wait for reset */
518 debug("BBB_reset result %d: status %lX clearing IN endpoint\n",
519 result
, us
->pusb_dev
->status
);
520 /* long wait for reset */
521 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
522 result
= usb_clear_halt(us
->pusb_dev
, pipe
);
524 debug("BBB_reset result %d: status %lX clearing OUT endpoint\n",
525 result
, us
->pusb_dev
->status
);
526 debug("BBB_reset done\n");
530 /* FIXME: this reset function doesn't really reset the port, and it
531 * should. Actually it should probably do what it's doing here, and
532 * reset the port physically
534 static int usb_stor_CB_reset(struct us_data
*us
)
536 unsigned char cmd
[12];
540 memset(cmd
, 0xff, sizeof(cmd
));
541 cmd
[0] = SCSI_SEND_DIAG
;
543 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
545 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
546 0, us
->ifnum
, cmd
, sizeof(cmd
),
547 USB_CNTL_TIMEOUT
* 5);
549 /* long wait for reset */
551 debug("CB_reset result %d: status %lX clearing endpoint halt\n",
552 result
, us
->pusb_dev
->status
);
553 usb_clear_halt(us
->pusb_dev
, usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
));
554 usb_clear_halt(us
->pusb_dev
, usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_out
));
556 debug("CB_reset done\n");
561 * Set up the command for a BBB device. Note that the actual SCSI
562 * command is copied into cbw.CBWCDB.
564 static int usb_stor_BBB_comdat(ccb
*srb
, struct us_data
*us
)
570 ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_cbw
, cbw
, 1);
572 dir_in
= US_DIRECTION(srb
->cmd
[0]);
574 #ifdef BBB_COMDAT_TRACE
575 printf("dir %d lun %d cmdlen %d cmd %p datalen %lu pdata %p\n",
576 dir_in
, srb
->lun
, srb
->cmdlen
, srb
->cmd
, srb
->datalen
,
579 for (result
= 0; result
< srb
->cmdlen
; result
++)
580 printf("cmd[%d] %#x ", result
, srb
->cmd
[result
]);
585 if (!(srb
->cmdlen
<= CBWCDBLENGTH
)) {
586 debug("usb_stor_BBB_comdat:cmdlen too large\n");
590 /* always OUT to the ep */
591 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
593 cbw
->dCBWSignature
= cpu_to_le32(CBWSIGNATURE
);
594 cbw
->dCBWTag
= cpu_to_le32(CBWTag
++);
595 cbw
->dCBWDataTransferLength
= cpu_to_le32(srb
->datalen
);
596 cbw
->bCBWFlags
= (dir_in
? CBWFLAGS_IN
: CBWFLAGS_OUT
);
597 cbw
->bCBWLUN
= srb
->lun
;
598 cbw
->bCDBLength
= srb
->cmdlen
;
599 /* copy the command data into the CBW command data buffer */
602 memcpy(cbw
->CBWCDB
, srb
->cmd
, srb
->cmdlen
);
603 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, cbw
, UMASS_BBB_CBW_SIZE
,
604 &actlen
, USB_CNTL_TIMEOUT
* 5);
606 debug("usb_stor_BBB_comdat:usb_bulk_msg error\n");
610 /* FIXME: we also need a CBI_command which sets up the completion
611 * interrupt, and waits for it
613 static int usb_stor_CB_comdat(ccb
*srb
, struct us_data
*us
)
618 unsigned long status
;
621 dir_in
= US_DIRECTION(srb
->cmd
[0]);
624 pipe
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
626 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
629 debug("CBI gets a command: Try %d\n", 5 - retry
);
633 /* let's send the command via the control pipe */
634 result
= usb_control_msg(us
->pusb_dev
,
635 usb_sndctrlpipe(us
->pusb_dev
, 0),
637 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
639 srb
->cmd
, srb
->cmdlen
,
640 USB_CNTL_TIMEOUT
* 5);
641 debug("CB_transport: control msg returned %d, status %lX\n",
642 result
, us
->pusb_dev
->status
);
643 /* check the return code for the command */
645 if (us
->pusb_dev
->status
& USB_ST_STALLED
) {
646 status
= us
->pusb_dev
->status
;
647 debug(" stall during command found," \
649 usb_clear_halt(us
->pusb_dev
,
650 usb_sndctrlpipe(us
->pusb_dev
, 0));
651 us
->pusb_dev
->status
= status
;
653 debug(" error during command %02X" \
654 " Stat = %lX\n", srb
->cmd
[0],
655 us
->pusb_dev
->status
);
658 /* transfer the data payload for this command, if one exists*/
660 debug("CB_transport: control msg returned %d," \
661 " direction is %s to go 0x%lx\n", result
,
662 dir_in
? "IN" : "OUT", srb
->datalen
);
664 result
= us_one_transfer(us
, pipe
, (char *)srb
->pdata
,
666 debug("CBI attempted to transfer data," \
667 " result is %d status %lX, len %d\n",
668 result
, us
->pusb_dev
->status
,
669 us
->pusb_dev
->act_len
);
670 if (!(us
->pusb_dev
->status
& USB_ST_NAK_REC
))
672 } /* if (srb->datalen) */
682 static int usb_stor_CBI_get_status(ccb
*srb
, struct us_data
*us
)
687 submit_int_msg(us
->pusb_dev
, us
->irqpipe
,
688 (void *) &us
->ip_data
, us
->irqmaxp
, us
->irqinterval
);
691 if (us
->ip_wanted
== 0)
696 printf(" Did not get interrupt on CBI\n");
698 return USB_STOR_TRANSPORT_ERROR
;
700 debug("Got interrupt data 0x%x, transferred %d status 0x%lX\n",
701 us
->ip_data
, us
->pusb_dev
->irq_act_len
,
702 us
->pusb_dev
->irq_status
);
703 /* UFI gives us ASC and ASCQ, like a request sense */
704 if (us
->subclass
== US_SC_UFI
) {
705 if (srb
->cmd
[0] == SCSI_REQ_SENSE
||
706 srb
->cmd
[0] == SCSI_INQUIRY
)
707 return USB_STOR_TRANSPORT_GOOD
; /* Good */
708 else if (us
->ip_data
)
709 return USB_STOR_TRANSPORT_FAILED
;
711 return USB_STOR_TRANSPORT_GOOD
;
713 /* otherwise, we interpret the data normally */
714 switch (us
->ip_data
) {
716 return USB_STOR_TRANSPORT_GOOD
;
718 return USB_STOR_TRANSPORT_FAILED
;
720 return USB_STOR_TRANSPORT_ERROR
;
722 return USB_STOR_TRANSPORT_ERROR
;
725 #define USB_TRANSPORT_UNKNOWN_RETRY 5
726 #define USB_TRANSPORT_NOT_READY_RETRY 10
728 /* clear a stall on an endpoint - special for BBB devices */
729 static int usb_stor_BBB_clear_endpt_stall(struct us_data
*us
, __u8 endpt
)
733 /* ENDPOINT_HALT = 0, so set value to 0 */
734 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
735 USB_REQ_CLEAR_FEATURE
, USB_RECIP_ENDPOINT
,
736 0, endpt
, NULL
, 0, USB_CNTL_TIMEOUT
* 5);
740 static int usb_stor_BBB_transport(ccb
*srb
, struct us_data
*us
)
744 int actlen
, data_actlen
;
745 unsigned int pipe
, pipein
, pipeout
;
746 ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_csw
, csw
, 1);
747 #ifdef BBB_XPORT_TRACE
752 dir_in
= US_DIRECTION(srb
->cmd
[0]);
755 debug("COMMAND phase\n");
756 result
= usb_stor_BBB_comdat(srb
, us
);
758 debug("failed to send CBW status %ld\n",
759 us
->pusb_dev
->status
);
760 usb_stor_BBB_reset(us
);
761 return USB_STOR_TRANSPORT_FAILED
;
763 if (!(us
->flags
& USB_READY
))
765 pipein
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
766 pipeout
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
767 /* DATA phase + error handling */
769 /* no data, go immediately to the STATUS phase */
770 if (srb
->datalen
== 0)
772 debug("DATA phase\n");
778 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, srb
->pdata
, srb
->datalen
,
779 &data_actlen
, USB_CNTL_TIMEOUT
* 5);
780 /* special handling of STALL in DATA phase */
781 if ((result
< 0) && (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
782 debug("DATA:stall\n");
783 /* clear the STALL on the endpoint */
784 result
= usb_stor_BBB_clear_endpt_stall(us
,
785 dir_in
? us
->ep_in
: us
->ep_out
);
787 /* continue on to STATUS phase */
791 debug("usb_bulk_msg error status %ld\n",
792 us
->pusb_dev
->status
);
793 usb_stor_BBB_reset(us
);
794 return USB_STOR_TRANSPORT_FAILED
;
796 #ifdef BBB_XPORT_TRACE
797 for (index
= 0; index
< data_actlen
; index
++)
798 printf("pdata[%d] %#x ", index
, srb
->pdata
[index
]);
801 /* STATUS phase + error handling */
805 debug("STATUS phase\n");
806 result
= usb_bulk_msg(us
->pusb_dev
, pipein
, csw
, UMASS_BBB_CSW_SIZE
,
807 &actlen
, USB_CNTL_TIMEOUT
*5);
809 /* special handling of STALL in STATUS phase */
810 if ((result
< 0) && (retry
< 1) &&
811 (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
812 debug("STATUS:stall\n");
813 /* clear the STALL on the endpoint */
814 result
= usb_stor_BBB_clear_endpt_stall(us
, us
->ep_in
);
815 if (result
>= 0 && (retry
++ < 1))
820 debug("usb_bulk_msg error status %ld\n",
821 us
->pusb_dev
->status
);
822 usb_stor_BBB_reset(us
);
823 return USB_STOR_TRANSPORT_FAILED
;
825 #ifdef BBB_XPORT_TRACE
826 ptr
= (unsigned char *)csw
;
827 for (index
= 0; index
< UMASS_BBB_CSW_SIZE
; index
++)
828 printf("ptr[%d] %#x ", index
, ptr
[index
]);
831 /* misuse pipe to get the residue */
832 pipe
= le32_to_cpu(csw
->dCSWDataResidue
);
833 if (pipe
== 0 && srb
->datalen
!= 0 && srb
->datalen
- data_actlen
!= 0)
834 pipe
= srb
->datalen
- data_actlen
;
835 if (CSWSIGNATURE
!= le32_to_cpu(csw
->dCSWSignature
)) {
836 debug("!CSWSIGNATURE\n");
837 usb_stor_BBB_reset(us
);
838 return USB_STOR_TRANSPORT_FAILED
;
839 } else if ((CBWTag
- 1) != le32_to_cpu(csw
->dCSWTag
)) {
841 usb_stor_BBB_reset(us
);
842 return USB_STOR_TRANSPORT_FAILED
;
843 } else if (csw
->bCSWStatus
> CSWSTATUS_PHASE
) {
845 usb_stor_BBB_reset(us
);
846 return USB_STOR_TRANSPORT_FAILED
;
847 } else if (csw
->bCSWStatus
== CSWSTATUS_PHASE
) {
849 usb_stor_BBB_reset(us
);
850 return USB_STOR_TRANSPORT_FAILED
;
851 } else if (data_actlen
> srb
->datalen
) {
852 debug("transferred %dB instead of %ldB\n",
853 data_actlen
, srb
->datalen
);
854 return USB_STOR_TRANSPORT_FAILED
;
855 } else if (csw
->bCSWStatus
== CSWSTATUS_FAILED
) {
857 return USB_STOR_TRANSPORT_FAILED
;
863 static int usb_stor_CB_transport(ccb
*srb
, struct us_data
*us
)
871 status
= USB_STOR_TRANSPORT_GOOD
;
874 /* issue the command */
876 result
= usb_stor_CB_comdat(srb
, us
);
877 debug("command / Data returned %d, status %lX\n",
878 result
, us
->pusb_dev
->status
);
879 /* if this is an CBI Protocol, get IRQ */
880 if (us
->protocol
== US_PR_CBI
) {
881 status
= usb_stor_CBI_get_status(srb
, us
);
882 /* if the status is error, report it */
883 if (status
== USB_STOR_TRANSPORT_ERROR
) {
884 debug(" USB CBI Command Error\n");
887 srb
->sense_buf
[12] = (unsigned char)(us
->ip_data
>> 8);
888 srb
->sense_buf
[13] = (unsigned char)(us
->ip_data
& 0xff);
890 /* if the status is good, report it */
891 if (status
== USB_STOR_TRANSPORT_GOOD
) {
892 debug(" USB CBI Command Good\n");
897 /* do we have to issue an auto request? */
898 /* HERE we have to check the result */
899 if ((result
< 0) && !(us
->pusb_dev
->status
& USB_ST_STALLED
)) {
900 debug("ERROR %lX\n", us
->pusb_dev
->status
);
901 us
->transport_reset(us
);
902 return USB_STOR_TRANSPORT_ERROR
;
904 if ((us
->protocol
== US_PR_CBI
) &&
905 ((srb
->cmd
[0] == SCSI_REQ_SENSE
) ||
906 (srb
->cmd
[0] == SCSI_INQUIRY
))) {
907 /* do not issue an autorequest after request sense */
908 debug("No auto request and good\n");
909 return USB_STOR_TRANSPORT_GOOD
;
911 /* issue an request_sense */
912 memset(&psrb
->cmd
[0], 0, 12);
913 psrb
->cmd
[0] = SCSI_REQ_SENSE
;
914 psrb
->cmd
[1] = srb
->lun
<< 5;
917 psrb
->pdata
= &srb
->sense_buf
[0];
919 /* issue the command */
920 result
= usb_stor_CB_comdat(psrb
, us
);
921 debug("auto request returned %d\n", result
);
922 /* if this is an CBI Protocol, get IRQ */
923 if (us
->protocol
== US_PR_CBI
)
924 status
= usb_stor_CBI_get_status(psrb
, us
);
926 if ((result
< 0) && !(us
->pusb_dev
->status
& USB_ST_STALLED
)) {
927 debug(" AUTO REQUEST ERROR %ld\n",
928 us
->pusb_dev
->status
);
929 return USB_STOR_TRANSPORT_ERROR
;
931 debug("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
932 srb
->sense_buf
[0], srb
->sense_buf
[2],
933 srb
->sense_buf
[12], srb
->sense_buf
[13]);
934 /* Check the auto request result */
935 if ((srb
->sense_buf
[2] == 0) &&
936 (srb
->sense_buf
[12] == 0) &&
937 (srb
->sense_buf
[13] == 0)) {
939 return USB_STOR_TRANSPORT_GOOD
;
942 /* Check the auto request result */
943 switch (srb
->sense_buf
[2]) {
945 /* Recovered Error */
946 return USB_STOR_TRANSPORT_GOOD
;
950 if (notready
++ > USB_TRANSPORT_NOT_READY_RETRY
) {
951 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
952 " 0x%02X (NOT READY)\n", srb
->cmd
[0],
953 srb
->sense_buf
[0], srb
->sense_buf
[2],
954 srb
->sense_buf
[12], srb
->sense_buf
[13]);
955 return USB_STOR_TRANSPORT_FAILED
;
962 if (retry
++ > USB_TRANSPORT_UNKNOWN_RETRY
) {
963 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
964 " 0x%02X\n", srb
->cmd
[0], srb
->sense_buf
[0],
965 srb
->sense_buf
[2], srb
->sense_buf
[12],
967 return USB_STOR_TRANSPORT_FAILED
;
972 return USB_STOR_TRANSPORT_FAILED
;
976 static int usb_inquiry(ccb
*srb
, struct us_data
*ss
)
981 memset(&srb
->cmd
[0], 0, 12);
982 srb
->cmd
[0] = SCSI_INQUIRY
;
983 srb
->cmd
[1] = srb
->lun
<< 5;
987 i
= ss
->transport(srb
, ss
);
988 debug("inquiry returns %d\n", i
);
994 printf("error in inquiry\n");
1000 static int usb_request_sense(ccb
*srb
, struct us_data
*ss
)
1004 ptr
= (char *)srb
->pdata
;
1005 memset(&srb
->cmd
[0], 0, 12);
1006 srb
->cmd
[0] = SCSI_REQ_SENSE
;
1007 srb
->cmd
[1] = srb
->lun
<< 5;
1010 srb
->pdata
= &srb
->sense_buf
[0];
1012 ss
->transport(srb
, ss
);
1013 debug("Request Sense returned %02X %02X %02X\n",
1014 srb
->sense_buf
[2], srb
->sense_buf
[12],
1015 srb
->sense_buf
[13]);
1016 srb
->pdata
= (uchar
*)ptr
;
1020 static int usb_test_unit_ready(ccb
*srb
, struct us_data
*ss
)
1025 memset(&srb
->cmd
[0], 0, 12);
1026 srb
->cmd
[0] = SCSI_TST_U_RDY
;
1027 srb
->cmd
[1] = srb
->lun
<< 5;
1030 if (ss
->transport(srb
, ss
) == USB_STOR_TRANSPORT_GOOD
) {
1031 ss
->flags
|= USB_READY
;
1034 usb_request_sense(srb
, ss
);
1036 * Check the Key Code Qualifier, if it matches
1037 * "Not Ready - medium not present"
1038 * (the sense Key equals 0x2 and the ASC is 0x3a)
1039 * return immediately as the medium being absent won't change
1040 * unless there is a user action.
1042 if ((srb
->sense_buf
[2] == 0x02) &&
1043 (srb
->sense_buf
[12] == 0x3a))
1046 } while (retries
--);
1051 static int usb_read_capacity(ccb
*srb
, struct us_data
*ss
)
1057 memset(&srb
->cmd
[0], 0, 12);
1058 srb
->cmd
[0] = SCSI_RD_CAPAC
;
1059 srb
->cmd
[1] = srb
->lun
<< 5;
1062 if (ss
->transport(srb
, ss
) == USB_STOR_TRANSPORT_GOOD
)
1069 static int usb_read_10(ccb
*srb
, struct us_data
*ss
, unsigned long start
,
1070 unsigned short blocks
)
1072 memset(&srb
->cmd
[0], 0, 12);
1073 srb
->cmd
[0] = SCSI_READ10
;
1074 srb
->cmd
[1] = srb
->lun
<< 5;
1075 srb
->cmd
[2] = ((unsigned char) (start
>> 24)) & 0xff;
1076 srb
->cmd
[3] = ((unsigned char) (start
>> 16)) & 0xff;
1077 srb
->cmd
[4] = ((unsigned char) (start
>> 8)) & 0xff;
1078 srb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
1079 srb
->cmd
[7] = ((unsigned char) (blocks
>> 8)) & 0xff;
1080 srb
->cmd
[8] = (unsigned char) blocks
& 0xff;
1082 debug("read10: start %lx blocks %x\n", start
, blocks
);
1083 return ss
->transport(srb
, ss
);
1086 static int usb_write_10(ccb
*srb
, struct us_data
*ss
, unsigned long start
,
1087 unsigned short blocks
)
1089 memset(&srb
->cmd
[0], 0, 12);
1090 srb
->cmd
[0] = SCSI_WRITE10
;
1091 srb
->cmd
[1] = srb
->lun
<< 5;
1092 srb
->cmd
[2] = ((unsigned char) (start
>> 24)) & 0xff;
1093 srb
->cmd
[3] = ((unsigned char) (start
>> 16)) & 0xff;
1094 srb
->cmd
[4] = ((unsigned char) (start
>> 8)) & 0xff;
1095 srb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
1096 srb
->cmd
[7] = ((unsigned char) (blocks
>> 8)) & 0xff;
1097 srb
->cmd
[8] = (unsigned char) blocks
& 0xff;
1099 debug("write10: start %lx blocks %x\n", start
, blocks
);
1100 return ss
->transport(srb
, ss
);
1104 #ifdef CONFIG_USB_BIN_FIXUP
1106 * Some USB storage devices queried for SCSI identification data respond with
1107 * binary strings, which if output to the console freeze the terminal. The
1108 * workaround is to modify the vendor and product strings read from such
1109 * device with proper values (as reported by 'usb info').
1111 * Vendor and product length limits are taken from the definition of
1112 * struct blk_desc in include/part.h.
1114 static void usb_bin_fixup(struct usb_device_descriptor descriptor
,
1115 unsigned char vendor
[],
1116 unsigned char product
[]) {
1117 const unsigned char max_vendor_len
= 40;
1118 const unsigned char max_product_len
= 20;
1119 if (descriptor
.idVendor
== 0x0424 && descriptor
.idProduct
== 0x223a) {
1120 strncpy((char *)vendor
, "SMSC", max_vendor_len
);
1121 strncpy((char *)product
, "Flash Media Cntrller",
1125 #endif /* CONFIG_USB_BIN_FIXUP */
1128 static unsigned long usb_stor_read(struct udevice
*dev
, lbaint_t blknr
,
1129 lbaint_t blkcnt
, void *buffer
)
1131 static unsigned long usb_stor_read(struct blk_desc
*block_dev
, lbaint_t blknr
,
1132 lbaint_t blkcnt
, void *buffer
)
1135 lbaint_t start
, blks
;
1137 unsigned short smallblks
;
1138 struct usb_device
*udev
;
1141 ccb
*srb
= &usb_ccb
;
1143 struct blk_desc
*block_dev
;
1150 block_dev
= dev_get_uclass_platdata(dev
);
1151 udev
= dev_get_parent_priv(dev_get_parent(dev
));
1152 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1154 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1155 udev
= usb_dev_desc
[block_dev
->devnum
].priv
;
1157 debug("%s: No device\n", __func__
);
1161 ss
= (struct us_data
*)udev
->privptr
;
1163 usb_disable_asynch(1); /* asynch transfer not allowed */
1164 srb
->lun
= block_dev
->lun
;
1165 buf_addr
= (uintptr_t)buffer
;
1169 debug("\nusb_read: dev %d startblk " LBAF
", blccnt " LBAF
" buffer %"
1170 PRIxPTR
"\n", block_dev
->devnum
, start
, blks
, buf_addr
);
1173 /* XXX need some comment here */
1175 srb
->pdata
= (unsigned char *)buf_addr
;
1176 if (blks
> USB_MAX_XFER_BLK
)
1177 smallblks
= USB_MAX_XFER_BLK
;
1179 smallblks
= (unsigned short) blks
;
1181 if (smallblks
== USB_MAX_XFER_BLK
)
1182 usb_show_progress();
1183 srb
->datalen
= block_dev
->blksz
* smallblks
;
1184 srb
->pdata
= (unsigned char *)buf_addr
;
1185 if (usb_read_10(srb
, ss
, start
, smallblks
)) {
1186 debug("Read ERROR\n");
1187 usb_request_sense(srb
, ss
);
1195 buf_addr
+= srb
->datalen
;
1196 } while (blks
!= 0);
1197 ss
->flags
&= ~USB_READY
;
1199 debug("usb_read: end startblk " LBAF
1200 ", blccnt %x buffer %" PRIxPTR
"\n",
1201 start
, smallblks
, buf_addr
);
1203 usb_disable_asynch(0); /* asynch transfer allowed */
1204 if (blkcnt
>= USB_MAX_XFER_BLK
)
1210 static unsigned long usb_stor_write(struct udevice
*dev
, lbaint_t blknr
,
1211 lbaint_t blkcnt
, const void *buffer
)
1213 static unsigned long usb_stor_write(struct blk_desc
*block_dev
, lbaint_t blknr
,
1214 lbaint_t blkcnt
, const void *buffer
)
1217 lbaint_t start
, blks
;
1219 unsigned short smallblks
;
1220 struct usb_device
*udev
;
1223 ccb
*srb
= &usb_ccb
;
1225 struct blk_desc
*block_dev
;
1233 block_dev
= dev_get_uclass_platdata(dev
);
1234 udev
= dev_get_parent_priv(dev_get_parent(dev
));
1235 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1237 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1238 udev
= usb_dev_desc
[block_dev
->devnum
].priv
;
1240 debug("%s: No device\n", __func__
);
1244 ss
= (struct us_data
*)udev
->privptr
;
1246 usb_disable_asynch(1); /* asynch transfer not allowed */
1248 srb
->lun
= block_dev
->lun
;
1249 buf_addr
= (uintptr_t)buffer
;
1253 debug("\nusb_write: dev %d startblk " LBAF
", blccnt " LBAF
" buffer %"
1254 PRIxPTR
"\n", block_dev
->devnum
, start
, blks
, buf_addr
);
1257 /* If write fails retry for max retry count else
1258 * return with number of blocks written successfully.
1261 srb
->pdata
= (unsigned char *)buf_addr
;
1262 if (blks
> USB_MAX_XFER_BLK
)
1263 smallblks
= USB_MAX_XFER_BLK
;
1265 smallblks
= (unsigned short) blks
;
1267 if (smallblks
== USB_MAX_XFER_BLK
)
1268 usb_show_progress();
1269 srb
->datalen
= block_dev
->blksz
* smallblks
;
1270 srb
->pdata
= (unsigned char *)buf_addr
;
1271 if (usb_write_10(srb
, ss
, start
, smallblks
)) {
1272 debug("Write ERROR\n");
1273 usb_request_sense(srb
, ss
);
1281 buf_addr
+= srb
->datalen
;
1282 } while (blks
!= 0);
1283 ss
->flags
&= ~USB_READY
;
1285 debug("usb_write: end startblk " LBAF
", blccnt %x buffer %"
1286 PRIxPTR
"\n", start
, smallblks
, buf_addr
);
1288 usb_disable_asynch(0); /* asynch transfer allowed */
1289 if (blkcnt
>= USB_MAX_XFER_BLK
)
1295 /* Probe to see if a new device is actually a Storage device */
1296 int usb_storage_probe(struct usb_device
*dev
, unsigned int ifnum
,
1299 struct usb_interface
*iface
;
1301 struct usb_endpoint_descriptor
*ep_desc
;
1302 unsigned int flags
= 0;
1304 /* let's examine the device now */
1305 iface
= &dev
->config
.if_desc
[ifnum
];
1307 if (dev
->descriptor
.bDeviceClass
!= 0 ||
1308 iface
->desc
.bInterfaceClass
!= USB_CLASS_MASS_STORAGE
||
1309 iface
->desc
.bInterfaceSubClass
< US_SC_MIN
||
1310 iface
->desc
.bInterfaceSubClass
> US_SC_MAX
) {
1311 debug("Not mass storage\n");
1312 /* if it's not a mass storage, we go no further */
1316 memset(ss
, 0, sizeof(struct us_data
));
1318 /* At this point, we know we've got a live one */
1319 debug("\n\nUSB Mass Storage device detected\n");
1321 /* Initialize the us_data structure with some useful info */
1325 ss
->attention_done
= 0;
1326 ss
->subclass
= iface
->desc
.bInterfaceSubClass
;
1327 ss
->protocol
= iface
->desc
.bInterfaceProtocol
;
1329 /* set the handler pointers based on the protocol */
1330 debug("Transport: ");
1331 switch (ss
->protocol
) {
1333 debug("Control/Bulk\n");
1334 ss
->transport
= usb_stor_CB_transport
;
1335 ss
->transport_reset
= usb_stor_CB_reset
;
1339 debug("Control/Bulk/Interrupt\n");
1340 ss
->transport
= usb_stor_CB_transport
;
1341 ss
->transport_reset
= usb_stor_CB_reset
;
1344 debug("Bulk/Bulk/Bulk\n");
1345 ss
->transport
= usb_stor_BBB_transport
;
1346 ss
->transport_reset
= usb_stor_BBB_reset
;
1349 printf("USB Storage Transport unknown / not yet implemented\n");
1355 * We are expecting a minimum of 2 endpoints - in and out (bulk).
1356 * An optional interrupt is OK (necessary for CBI protocol).
1357 * We will ignore any others.
1359 for (i
= 0; i
< iface
->desc
.bNumEndpoints
; i
++) {
1360 ep_desc
= &iface
->ep_desc
[i
];
1361 /* is it an BULK endpoint? */
1362 if ((ep_desc
->bmAttributes
&
1363 USB_ENDPOINT_XFERTYPE_MASK
) == USB_ENDPOINT_XFER_BULK
) {
1364 if (ep_desc
->bEndpointAddress
& USB_DIR_IN
)
1365 ss
->ep_in
= ep_desc
->bEndpointAddress
&
1366 USB_ENDPOINT_NUMBER_MASK
;
1369 ep_desc
->bEndpointAddress
&
1370 USB_ENDPOINT_NUMBER_MASK
;
1373 /* is it an interrupt endpoint? */
1374 if ((ep_desc
->bmAttributes
&
1375 USB_ENDPOINT_XFERTYPE_MASK
) == USB_ENDPOINT_XFER_INT
) {
1376 ss
->ep_int
= ep_desc
->bEndpointAddress
&
1377 USB_ENDPOINT_NUMBER_MASK
;
1378 ss
->irqinterval
= ep_desc
->bInterval
;
1381 debug("Endpoints In %d Out %d Int %d\n",
1382 ss
->ep_in
, ss
->ep_out
, ss
->ep_int
);
1384 /* Do some basic sanity checks, and bail if we find a problem */
1385 if (usb_set_interface(dev
, iface
->desc
.bInterfaceNumber
, 0) ||
1386 !ss
->ep_in
|| !ss
->ep_out
||
1387 (ss
->protocol
== US_PR_CBI
&& ss
->ep_int
== 0)) {
1388 debug("Problems with device\n");
1391 /* set class specific stuff */
1392 /* We only handle certain protocols. Currently, these are
1394 * The SFF8070 accepts the requests used in u-boot
1396 if (ss
->subclass
!= US_SC_UFI
&& ss
->subclass
!= US_SC_SCSI
&&
1397 ss
->subclass
!= US_SC_8070
) {
1398 printf("Sorry, protocol %d not yet supported.\n", ss
->subclass
);
1402 /* we had found an interrupt endpoint, prepare irq pipe
1403 * set up the IRQ pipe and handler
1405 ss
->irqinterval
= (ss
->irqinterval
> 0) ? ss
->irqinterval
: 255;
1406 ss
->irqpipe
= usb_rcvintpipe(ss
->pusb_dev
, ss
->ep_int
);
1407 ss
->irqmaxp
= usb_maxpacket(dev
, ss
->irqpipe
);
1408 dev
->irq_handle
= usb_stor_irq
;
1410 dev
->privptr
= (void *)ss
;
1414 int usb_stor_get_info(struct usb_device
*dev
, struct us_data
*ss
,
1415 struct blk_desc
*dev_desc
)
1417 unsigned char perq
, modi
;
1418 ALLOC_CACHE_ALIGN_BUFFER(u32
, cap
, 2);
1419 ALLOC_CACHE_ALIGN_BUFFER(u8
, usb_stor_buf
, 36);
1420 u32 capacity
, blksz
;
1421 ccb
*pccb
= &usb_ccb
;
1423 pccb
->pdata
= usb_stor_buf
;
1425 dev_desc
->target
= dev
->devnum
;
1426 pccb
->lun
= dev_desc
->lun
;
1427 debug(" address %d\n", dev_desc
->target
);
1429 if (usb_inquiry(pccb
, ss
)) {
1430 debug("%s: usb_inquiry() failed\n", __func__
);
1434 perq
= usb_stor_buf
[0];
1435 modi
= usb_stor_buf
[1];
1438 * Skip unknown devices (0x1f) and enclosure service devices (0x0d),
1439 * they would not respond to test_unit_ready .
1441 if (((perq
& 0x1f) == 0x1f) || ((perq
& 0x1f) == 0x0d)) {
1442 debug("%s: unknown/unsupported device\n", __func__
);
1445 if ((modi
&0x80) == 0x80) {
1446 /* drive is removable */
1447 dev_desc
->removable
= 1;
1449 memcpy(dev_desc
->vendor
, (const void *)&usb_stor_buf
[8], 8);
1450 memcpy(dev_desc
->product
, (const void *)&usb_stor_buf
[16], 16);
1451 memcpy(dev_desc
->revision
, (const void *)&usb_stor_buf
[32], 4);
1452 dev_desc
->vendor
[8] = 0;
1453 dev_desc
->product
[16] = 0;
1454 dev_desc
->revision
[4] = 0;
1455 #ifdef CONFIG_USB_BIN_FIXUP
1456 usb_bin_fixup(dev
->descriptor
, (uchar
*)dev_desc
->vendor
,
1457 (uchar
*)dev_desc
->product
);
1458 #endif /* CONFIG_USB_BIN_FIXUP */
1459 debug("ISO Vers %X, Response Data %X\n", usb_stor_buf
[2],
1461 if (usb_test_unit_ready(pccb
, ss
)) {
1462 printf("Device NOT ready\n"
1463 " Request Sense returned %02X %02X %02X\n",
1464 pccb
->sense_buf
[2], pccb
->sense_buf
[12],
1465 pccb
->sense_buf
[13]);
1466 if (dev_desc
->removable
== 1) {
1467 dev_desc
->type
= perq
;
1472 pccb
->pdata
= (unsigned char *)cap
;
1473 memset(pccb
->pdata
, 0, 8);
1474 if (usb_read_capacity(pccb
, ss
) != 0) {
1475 printf("READ_CAP ERROR\n");
1479 ss
->flags
&= ~USB_READY
;
1480 debug("Read Capacity returns: 0x%08x, 0x%08x\n", cap
[0], cap
[1]);
1482 if (cap
[0] > (0x200000 * 10)) /* greater than 10 GByte */
1485 cap
[0] = cpu_to_be32(cap
[0]);
1486 cap
[1] = cpu_to_be32(cap
[1]);
1489 capacity
= be32_to_cpu(cap
[0]) + 1;
1490 blksz
= be32_to_cpu(cap
[1]);
1492 debug("Capacity = 0x%08x, blocksz = 0x%08x\n", capacity
, blksz
);
1493 dev_desc
->lba
= capacity
;
1494 dev_desc
->blksz
= blksz
;
1495 dev_desc
->log2blksz
= LOG2(dev_desc
->blksz
);
1496 dev_desc
->type
= perq
;
1497 debug(" address %d\n", dev_desc
->target
);
1502 #ifdef CONFIG_DM_USB
1504 static int usb_mass_storage_probe(struct udevice
*dev
)
1506 struct usb_device
*udev
= dev_get_parent_priv(dev
);
1509 usb_disable_asynch(1); /* asynch transfer not allowed */
1510 ret
= usb_stor_probe_device(udev
);
1511 usb_disable_asynch(0); /* asynch transfer allowed */
1516 static const struct udevice_id usb_mass_storage_ids
[] = {
1517 { .compatible
= "usb-mass-storage" },
1521 U_BOOT_DRIVER(usb_mass_storage
) = {
1522 .name
= "usb_mass_storage",
1523 .id
= UCLASS_MASS_STORAGE
,
1524 .of_match
= usb_mass_storage_ids
,
1525 .probe
= usb_mass_storage_probe
,
1527 .platdata_auto_alloc_size
= sizeof(struct us_data
),
1531 UCLASS_DRIVER(usb_mass_storage
) = {
1532 .id
= UCLASS_MASS_STORAGE
,
1533 .name
= "usb_mass_storage",
1536 static const struct usb_device_id mass_storage_id_table
[] = {
1538 .match_flags
= USB_DEVICE_ID_MATCH_INT_CLASS
,
1539 .bInterfaceClass
= USB_CLASS_MASS_STORAGE
1541 { } /* Terminating entry */
1544 U_BOOT_USB_DEVICE(usb_mass_storage
, mass_storage_id_table
);
1548 static const struct blk_ops usb_storage_ops
= {
1549 .read
= usb_stor_read
,
1550 .write
= usb_stor_write
,
1553 U_BOOT_DRIVER(usb_storage_blk
) = {
1554 .name
= "usb_storage_blk",
1556 .ops
= &usb_storage_ops
,
1559 U_BOOT_LEGACY_BLK(usb
) = {
1560 .if_typename
= "usb",
1561 .if_type
= IF_TYPE_USB
,
1562 .max_devs
= USB_MAX_STOR_DEV
,
1563 .desc
= usb_dev_desc
,