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 static void usb_show_progress(void)
144 /*******************************************************************************
145 * show info on storage devices; 'usb start/init' must be invoked earlier
146 * as we only retrieve structures populated during devices initialization
148 int usb_stor_info(void)
154 for (blk_first_device(IF_TYPE_USB
, &dev
);
156 blk_next_device(&dev
)) {
157 struct blk_desc
*desc
= dev_get_uclass_platdata(dev
);
159 printf(" Device %d: ", desc
->devnum
);
166 if (usb_max_devs
> 0) {
167 for (i
= 0; i
< usb_max_devs
; i
++) {
168 printf(" Device %d: ", i
);
169 dev_print(&usb_dev_desc
[i
]);
175 printf("No storage devices, perhaps not 'usb start'ed..?\n");
182 static unsigned int usb_get_max_lun(struct us_data
*us
)
185 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, result
, 1);
186 len
= usb_control_msg(us
->pusb_dev
,
187 usb_rcvctrlpipe(us
->pusb_dev
, 0),
189 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
| USB_DIR_IN
,
191 result
, sizeof(char),
192 USB_CNTL_TIMEOUT
* 5);
193 debug("Get Max LUN -> len = %i, result = %i\n", len
, (int) *result
);
194 return (len
> 0) ? *result
: 0;
197 static int usb_stor_probe_device(struct usb_device
*udev
)
202 struct us_data
*data
;
208 return -ENOENT
; /* no more devices available */
211 debug("\n\nProbing for storage\n");
214 * We store the us_data in the mass storage device's platdata. It
215 * is shared by all LUNs (block devices) attached to this mass storage
218 data
= dev_get_platdata(udev
->dev
);
219 if (!usb_storage_probe(udev
, 0, data
))
221 max_lun
= usb_get_max_lun(data
);
222 for (lun
= 0; lun
<= max_lun
; lun
++) {
223 struct blk_desc
*blkdev
;
227 snprintf(str
, sizeof(str
), "lun%d", lun
);
228 ret
= blk_create_devicef(udev
->dev
, "usb_storage_blk", str
,
229 IF_TYPE_USB
, usb_max_devs
, 512, 0,
232 debug("Cannot bind driver\n");
236 blkdev
= dev_get_uclass_platdata(dev
);
237 blkdev
->target
= 0xff;
240 ret
= usb_stor_get_info(udev
, data
, blkdev
);
242 ret
= blk_prepare_device(dev
);
245 debug("%s: Found device %p\n", __func__
, udev
);
247 debug("usb_stor_get_info: Invalid device\n");
248 ret
= device_unbind(dev
);
254 /* We don't have space to even probe if we hit the maximum */
255 if (usb_max_devs
== USB_MAX_STOR_DEV
) {
256 printf("max USB Storage Device reached: %d stopping\n",
261 if (!usb_storage_probe(udev
, 0, &usb_stor
[usb_max_devs
]))
265 * OK, it's a storage device. Iterate over its LUNs and populate
268 start
= usb_max_devs
;
270 max_lun
= usb_get_max_lun(&usb_stor
[usb_max_devs
]);
271 for (lun
= 0; lun
<= max_lun
&& usb_max_devs
< USB_MAX_STOR_DEV
;
273 struct blk_desc
*blkdev
;
275 blkdev
= &usb_dev_desc
[usb_max_devs
];
276 memset(blkdev
, '\0', sizeof(struct blk_desc
));
277 blkdev
->if_type
= IF_TYPE_USB
;
278 blkdev
->devnum
= usb_max_devs
;
279 blkdev
->part_type
= PART_TYPE_UNKNOWN
;
280 blkdev
->target
= 0xff;
281 blkdev
->type
= DEV_TYPE_UNKNOWN
;
282 blkdev
->block_read
= usb_stor_read
;
283 blkdev
->block_write
= usb_stor_write
;
287 if (usb_stor_get_info(udev
, &usb_stor
[start
],
288 &usb_dev_desc
[usb_max_devs
]) == 1) {
289 debug("partype: %d\n", blkdev
->part_type
);
291 debug("partype: %d\n", blkdev
->part_type
);
293 debug("%s: Found device %p\n", __func__
, udev
);
301 void usb_stor_reset(void)
306 /*******************************************************************************
307 * scan the usb and reports device info
308 * to the user if mode = 1
309 * returns current device or -1 if no
311 int usb_stor_scan(int mode
)
314 printf(" scanning usb for storage devices... ");
316 #ifndef CONFIG_DM_USB
319 usb_disable_asynch(1); /* asynch transfer not allowed */
322 for (i
= 0; i
< USB_MAX_DEVICE
; i
++) {
323 struct usb_device
*dev
;
325 dev
= usb_get_dev_index(i
); /* get device */
327 if (usb_stor_probe_device(dev
))
331 usb_disable_asynch(0); /* asynch transfer allowed */
333 printf("%d Storage Device(s) found\n", usb_max_devs
);
334 if (usb_max_devs
> 0)
339 static int usb_stor_irq(struct usb_device
*dev
)
342 us
= (struct us_data
*)dev
->privptr
;
352 static void usb_show_srb(ccb
*pccb
)
355 printf("SRB: len %d datalen 0x%lX\n ", pccb
->cmdlen
, pccb
->datalen
);
356 for (i
= 0; i
< 12; i
++)
357 printf("%02X ", pccb
->cmd
[i
]);
361 static void display_int_status(unsigned long tmp
)
363 printf("Status: %s %s %s %s %s %s %s\n",
364 (tmp
& USB_ST_ACTIVE
) ? "Active" : "",
365 (tmp
& USB_ST_STALLED
) ? "Stalled" : "",
366 (tmp
& USB_ST_BUF_ERR
) ? "Buffer Error" : "",
367 (tmp
& USB_ST_BABBLE_DET
) ? "Babble Det" : "",
368 (tmp
& USB_ST_NAK_REC
) ? "NAKed" : "",
369 (tmp
& USB_ST_CRC_ERR
) ? "CRC Error" : "",
370 (tmp
& USB_ST_BIT_ERR
) ? "Bitstuff Error" : "");
373 /***********************************************************************
374 * Data transfer routines
375 ***********************************************************************/
377 static int us_one_transfer(struct us_data
*us
, int pipe
, char *buf
, int length
)
386 /* determine the maximum packet size for these transfers */
387 max_size
= usb_maxpacket(us
->pusb_dev
, pipe
) * 16;
389 /* while we have data left to transfer */
392 /* calculate how long this will be -- maximum or a remainder */
393 this_xfer
= length
> max_size
? max_size
: length
;
396 /* setup the retry counter */
399 /* set up the transfer loop */
401 /* transfer the data */
402 debug("Bulk xfer 0x%lx(%d) try #%d\n",
403 (ulong
)map_to_sysmem(buf
), this_xfer
,
405 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, buf
,
407 USB_CNTL_TIMEOUT
* 5);
408 debug("bulk_msg returned %d xferred %d/%d\n",
409 result
, partial
, this_xfer
);
410 if (us
->pusb_dev
->status
!= 0) {
411 /* if we stall, we need to clear it before
415 display_int_status(us
->pusb_dev
->status
);
417 if (us
->pusb_dev
->status
& USB_ST_STALLED
) {
418 debug("stalled ->clearing endpoint" \
419 "halt for pipe 0x%x\n", pipe
);
420 stat
= us
->pusb_dev
->status
;
421 usb_clear_halt(us
->pusb_dev
, pipe
);
422 us
->pusb_dev
->status
= stat
;
423 if (this_xfer
== partial
) {
424 debug("bulk transferred" \
427 us
->pusb_dev
->status
);
433 if (us
->pusb_dev
->status
& USB_ST_NAK_REC
) {
434 debug("Device NAKed bulk_msg\n");
437 debug("bulk transferred with error");
438 if (this_xfer
== partial
) {
439 debug(" %ld, but data ok\n",
440 us
->pusb_dev
->status
);
443 /* if our try counter reaches 0, bail out */
444 debug(" %ld, data %d\n",
445 us
->pusb_dev
->status
, partial
);
449 /* update to show what data was transferred */
450 this_xfer
-= partial
;
452 /* continue until this transfer is done */
456 /* if we get here, we're done and successful */
460 static int usb_stor_BBB_reset(struct us_data
*us
)
466 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
468 * For Reset Recovery the host shall issue in the following order:
469 * a) a Bulk-Only Mass Storage Reset
470 * b) a Clear Feature HALT to the Bulk-In endpoint
471 * c) a Clear Feature HALT to the Bulk-Out endpoint
473 * This is done in 3 steps.
475 * If the reset doesn't succeed, the device should be port reset.
477 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
479 debug("BBB_reset\n");
480 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
482 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
483 0, us
->ifnum
, NULL
, 0, USB_CNTL_TIMEOUT
* 5);
485 if ((result
< 0) && (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
486 debug("RESET:stall\n");
490 /* long wait for reset */
492 debug("BBB_reset result %d: status %lX reset\n",
493 result
, us
->pusb_dev
->status
);
494 pipe
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
495 result
= usb_clear_halt(us
->pusb_dev
, pipe
);
496 /* long wait for reset */
498 debug("BBB_reset result %d: status %lX clearing IN endpoint\n",
499 result
, us
->pusb_dev
->status
);
500 /* long wait for reset */
501 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
502 result
= usb_clear_halt(us
->pusb_dev
, pipe
);
504 debug("BBB_reset result %d: status %lX clearing OUT endpoint\n",
505 result
, us
->pusb_dev
->status
);
506 debug("BBB_reset done\n");
510 /* FIXME: this reset function doesn't really reset the port, and it
511 * should. Actually it should probably do what it's doing here, and
512 * reset the port physically
514 static int usb_stor_CB_reset(struct us_data
*us
)
516 unsigned char cmd
[12];
520 memset(cmd
, 0xff, sizeof(cmd
));
521 cmd
[0] = SCSI_SEND_DIAG
;
523 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
525 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
526 0, us
->ifnum
, cmd
, sizeof(cmd
),
527 USB_CNTL_TIMEOUT
* 5);
529 /* long wait for reset */
531 debug("CB_reset result %d: status %lX clearing endpoint halt\n",
532 result
, us
->pusb_dev
->status
);
533 usb_clear_halt(us
->pusb_dev
, usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
));
534 usb_clear_halt(us
->pusb_dev
, usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_out
));
536 debug("CB_reset done\n");
541 * Set up the command for a BBB device. Note that the actual SCSI
542 * command is copied into cbw.CBWCDB.
544 static int usb_stor_BBB_comdat(ccb
*srb
, struct us_data
*us
)
550 ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_cbw
, cbw
, 1);
552 dir_in
= US_DIRECTION(srb
->cmd
[0]);
554 #ifdef BBB_COMDAT_TRACE
555 printf("dir %d lun %d cmdlen %d cmd %p datalen %lu pdata %p\n",
556 dir_in
, srb
->lun
, srb
->cmdlen
, srb
->cmd
, srb
->datalen
,
559 for (result
= 0; result
< srb
->cmdlen
; result
++)
560 printf("cmd[%d] %#x ", result
, srb
->cmd
[result
]);
565 if (!(srb
->cmdlen
<= CBWCDBLENGTH
)) {
566 debug("usb_stor_BBB_comdat:cmdlen too large\n");
570 /* always OUT to the ep */
571 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
573 cbw
->dCBWSignature
= cpu_to_le32(CBWSIGNATURE
);
574 cbw
->dCBWTag
= cpu_to_le32(CBWTag
++);
575 cbw
->dCBWDataTransferLength
= cpu_to_le32(srb
->datalen
);
576 cbw
->bCBWFlags
= (dir_in
? CBWFLAGS_IN
: CBWFLAGS_OUT
);
577 cbw
->bCBWLUN
= srb
->lun
;
578 cbw
->bCDBLength
= srb
->cmdlen
;
579 /* copy the command data into the CBW command data buffer */
582 memcpy(cbw
->CBWCDB
, srb
->cmd
, srb
->cmdlen
);
583 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, cbw
, UMASS_BBB_CBW_SIZE
,
584 &actlen
, USB_CNTL_TIMEOUT
* 5);
586 debug("usb_stor_BBB_comdat:usb_bulk_msg error\n");
590 /* FIXME: we also need a CBI_command which sets up the completion
591 * interrupt, and waits for it
593 static int usb_stor_CB_comdat(ccb
*srb
, struct us_data
*us
)
598 unsigned long status
;
601 dir_in
= US_DIRECTION(srb
->cmd
[0]);
604 pipe
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
606 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
609 debug("CBI gets a command: Try %d\n", 5 - retry
);
613 /* let's send the command via the control pipe */
614 result
= usb_control_msg(us
->pusb_dev
,
615 usb_sndctrlpipe(us
->pusb_dev
, 0),
617 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
619 srb
->cmd
, srb
->cmdlen
,
620 USB_CNTL_TIMEOUT
* 5);
621 debug("CB_transport: control msg returned %d, status %lX\n",
622 result
, us
->pusb_dev
->status
);
623 /* check the return code for the command */
625 if (us
->pusb_dev
->status
& USB_ST_STALLED
) {
626 status
= us
->pusb_dev
->status
;
627 debug(" stall during command found," \
629 usb_clear_halt(us
->pusb_dev
,
630 usb_sndctrlpipe(us
->pusb_dev
, 0));
631 us
->pusb_dev
->status
= status
;
633 debug(" error during command %02X" \
634 " Stat = %lX\n", srb
->cmd
[0],
635 us
->pusb_dev
->status
);
638 /* transfer the data payload for this command, if one exists*/
640 debug("CB_transport: control msg returned %d," \
641 " direction is %s to go 0x%lx\n", result
,
642 dir_in
? "IN" : "OUT", srb
->datalen
);
644 result
= us_one_transfer(us
, pipe
, (char *)srb
->pdata
,
646 debug("CBI attempted to transfer data," \
647 " result is %d status %lX, len %d\n",
648 result
, us
->pusb_dev
->status
,
649 us
->pusb_dev
->act_len
);
650 if (!(us
->pusb_dev
->status
& USB_ST_NAK_REC
))
652 } /* if (srb->datalen) */
662 static int usb_stor_CBI_get_status(ccb
*srb
, struct us_data
*us
)
667 submit_int_msg(us
->pusb_dev
, us
->irqpipe
,
668 (void *) &us
->ip_data
, us
->irqmaxp
, us
->irqinterval
);
671 if (us
->ip_wanted
== 0)
676 printf(" Did not get interrupt on CBI\n");
678 return USB_STOR_TRANSPORT_ERROR
;
680 debug("Got interrupt data 0x%x, transferred %d status 0x%lX\n",
681 us
->ip_data
, us
->pusb_dev
->irq_act_len
,
682 us
->pusb_dev
->irq_status
);
683 /* UFI gives us ASC and ASCQ, like a request sense */
684 if (us
->subclass
== US_SC_UFI
) {
685 if (srb
->cmd
[0] == SCSI_REQ_SENSE
||
686 srb
->cmd
[0] == SCSI_INQUIRY
)
687 return USB_STOR_TRANSPORT_GOOD
; /* Good */
688 else if (us
->ip_data
)
689 return USB_STOR_TRANSPORT_FAILED
;
691 return USB_STOR_TRANSPORT_GOOD
;
693 /* otherwise, we interpret the data normally */
694 switch (us
->ip_data
) {
696 return USB_STOR_TRANSPORT_GOOD
;
698 return USB_STOR_TRANSPORT_FAILED
;
700 return USB_STOR_TRANSPORT_ERROR
;
702 return USB_STOR_TRANSPORT_ERROR
;
705 #define USB_TRANSPORT_UNKNOWN_RETRY 5
706 #define USB_TRANSPORT_NOT_READY_RETRY 10
708 /* clear a stall on an endpoint - special for BBB devices */
709 static int usb_stor_BBB_clear_endpt_stall(struct us_data
*us
, __u8 endpt
)
711 /* ENDPOINT_HALT = 0, so set value to 0 */
712 return usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
713 USB_REQ_CLEAR_FEATURE
, USB_RECIP_ENDPOINT
, 0,
714 endpt
, NULL
, 0, USB_CNTL_TIMEOUT
* 5);
717 static int usb_stor_BBB_transport(ccb
*srb
, struct us_data
*us
)
721 int actlen
, data_actlen
;
722 unsigned int pipe
, pipein
, pipeout
;
723 ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_csw
, csw
, 1);
724 #ifdef BBB_XPORT_TRACE
729 dir_in
= US_DIRECTION(srb
->cmd
[0]);
732 debug("COMMAND phase\n");
733 result
= usb_stor_BBB_comdat(srb
, us
);
735 debug("failed to send CBW status %ld\n",
736 us
->pusb_dev
->status
);
737 usb_stor_BBB_reset(us
);
738 return USB_STOR_TRANSPORT_FAILED
;
740 if (!(us
->flags
& USB_READY
))
742 pipein
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
743 pipeout
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
744 /* DATA phase + error handling */
746 /* no data, go immediately to the STATUS phase */
747 if (srb
->datalen
== 0)
749 debug("DATA phase\n");
755 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, srb
->pdata
, srb
->datalen
,
756 &data_actlen
, USB_CNTL_TIMEOUT
* 5);
757 /* special handling of STALL in DATA phase */
758 if ((result
< 0) && (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
759 debug("DATA:stall\n");
760 /* clear the STALL on the endpoint */
761 result
= usb_stor_BBB_clear_endpt_stall(us
,
762 dir_in
? us
->ep_in
: us
->ep_out
);
764 /* continue on to STATUS phase */
768 debug("usb_bulk_msg error status %ld\n",
769 us
->pusb_dev
->status
);
770 usb_stor_BBB_reset(us
);
771 return USB_STOR_TRANSPORT_FAILED
;
773 #ifdef BBB_XPORT_TRACE
774 for (index
= 0; index
< data_actlen
; index
++)
775 printf("pdata[%d] %#x ", index
, srb
->pdata
[index
]);
778 /* STATUS phase + error handling */
782 debug("STATUS phase\n");
783 result
= usb_bulk_msg(us
->pusb_dev
, pipein
, csw
, UMASS_BBB_CSW_SIZE
,
784 &actlen
, USB_CNTL_TIMEOUT
*5);
786 /* special handling of STALL in STATUS phase */
787 if ((result
< 0) && (retry
< 1) &&
788 (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
789 debug("STATUS:stall\n");
790 /* clear the STALL on the endpoint */
791 result
= usb_stor_BBB_clear_endpt_stall(us
, us
->ep_in
);
792 if (result
>= 0 && (retry
++ < 1))
797 debug("usb_bulk_msg error status %ld\n",
798 us
->pusb_dev
->status
);
799 usb_stor_BBB_reset(us
);
800 return USB_STOR_TRANSPORT_FAILED
;
802 #ifdef BBB_XPORT_TRACE
803 ptr
= (unsigned char *)csw
;
804 for (index
= 0; index
< UMASS_BBB_CSW_SIZE
; index
++)
805 printf("ptr[%d] %#x ", index
, ptr
[index
]);
808 /* misuse pipe to get the residue */
809 pipe
= le32_to_cpu(csw
->dCSWDataResidue
);
810 if (pipe
== 0 && srb
->datalen
!= 0 && srb
->datalen
- data_actlen
!= 0)
811 pipe
= srb
->datalen
- data_actlen
;
812 if (CSWSIGNATURE
!= le32_to_cpu(csw
->dCSWSignature
)) {
813 debug("!CSWSIGNATURE\n");
814 usb_stor_BBB_reset(us
);
815 return USB_STOR_TRANSPORT_FAILED
;
816 } else if ((CBWTag
- 1) != le32_to_cpu(csw
->dCSWTag
)) {
818 usb_stor_BBB_reset(us
);
819 return USB_STOR_TRANSPORT_FAILED
;
820 } else if (csw
->bCSWStatus
> CSWSTATUS_PHASE
) {
822 usb_stor_BBB_reset(us
);
823 return USB_STOR_TRANSPORT_FAILED
;
824 } else if (csw
->bCSWStatus
== CSWSTATUS_PHASE
) {
826 usb_stor_BBB_reset(us
);
827 return USB_STOR_TRANSPORT_FAILED
;
828 } else if (data_actlen
> srb
->datalen
) {
829 debug("transferred %dB instead of %ldB\n",
830 data_actlen
, srb
->datalen
);
831 return USB_STOR_TRANSPORT_FAILED
;
832 } else if (csw
->bCSWStatus
== CSWSTATUS_FAILED
) {
834 return USB_STOR_TRANSPORT_FAILED
;
840 static int usb_stor_CB_transport(ccb
*srb
, struct us_data
*us
)
848 status
= USB_STOR_TRANSPORT_GOOD
;
851 /* issue the command */
853 result
= usb_stor_CB_comdat(srb
, us
);
854 debug("command / Data returned %d, status %lX\n",
855 result
, us
->pusb_dev
->status
);
856 /* if this is an CBI Protocol, get IRQ */
857 if (us
->protocol
== US_PR_CBI
) {
858 status
= usb_stor_CBI_get_status(srb
, us
);
859 /* if the status is error, report it */
860 if (status
== USB_STOR_TRANSPORT_ERROR
) {
861 debug(" USB CBI Command Error\n");
864 srb
->sense_buf
[12] = (unsigned char)(us
->ip_data
>> 8);
865 srb
->sense_buf
[13] = (unsigned char)(us
->ip_data
& 0xff);
867 /* if the status is good, report it */
868 if (status
== USB_STOR_TRANSPORT_GOOD
) {
869 debug(" USB CBI Command Good\n");
874 /* do we have to issue an auto request? */
875 /* HERE we have to check the result */
876 if ((result
< 0) && !(us
->pusb_dev
->status
& USB_ST_STALLED
)) {
877 debug("ERROR %lX\n", us
->pusb_dev
->status
);
878 us
->transport_reset(us
);
879 return USB_STOR_TRANSPORT_ERROR
;
881 if ((us
->protocol
== US_PR_CBI
) &&
882 ((srb
->cmd
[0] == SCSI_REQ_SENSE
) ||
883 (srb
->cmd
[0] == SCSI_INQUIRY
))) {
884 /* do not issue an autorequest after request sense */
885 debug("No auto request and good\n");
886 return USB_STOR_TRANSPORT_GOOD
;
888 /* issue an request_sense */
889 memset(&psrb
->cmd
[0], 0, 12);
890 psrb
->cmd
[0] = SCSI_REQ_SENSE
;
891 psrb
->cmd
[1] = srb
->lun
<< 5;
894 psrb
->pdata
= &srb
->sense_buf
[0];
896 /* issue the command */
897 result
= usb_stor_CB_comdat(psrb
, us
);
898 debug("auto request returned %d\n", result
);
899 /* if this is an CBI Protocol, get IRQ */
900 if (us
->protocol
== US_PR_CBI
)
901 status
= usb_stor_CBI_get_status(psrb
, us
);
903 if ((result
< 0) && !(us
->pusb_dev
->status
& USB_ST_STALLED
)) {
904 debug(" AUTO REQUEST ERROR %ld\n",
905 us
->pusb_dev
->status
);
906 return USB_STOR_TRANSPORT_ERROR
;
908 debug("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
909 srb
->sense_buf
[0], srb
->sense_buf
[2],
910 srb
->sense_buf
[12], srb
->sense_buf
[13]);
911 /* Check the auto request result */
912 if ((srb
->sense_buf
[2] == 0) &&
913 (srb
->sense_buf
[12] == 0) &&
914 (srb
->sense_buf
[13] == 0)) {
916 return USB_STOR_TRANSPORT_GOOD
;
919 /* Check the auto request result */
920 switch (srb
->sense_buf
[2]) {
922 /* Recovered Error */
923 return USB_STOR_TRANSPORT_GOOD
;
927 if (notready
++ > USB_TRANSPORT_NOT_READY_RETRY
) {
928 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
929 " 0x%02X (NOT READY)\n", srb
->cmd
[0],
930 srb
->sense_buf
[0], srb
->sense_buf
[2],
931 srb
->sense_buf
[12], srb
->sense_buf
[13]);
932 return USB_STOR_TRANSPORT_FAILED
;
939 if (retry
++ > USB_TRANSPORT_UNKNOWN_RETRY
) {
940 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
941 " 0x%02X\n", srb
->cmd
[0], srb
->sense_buf
[0],
942 srb
->sense_buf
[2], srb
->sense_buf
[12],
944 return USB_STOR_TRANSPORT_FAILED
;
949 return USB_STOR_TRANSPORT_FAILED
;
953 static int usb_inquiry(ccb
*srb
, struct us_data
*ss
)
958 memset(&srb
->cmd
[0], 0, 12);
959 srb
->cmd
[0] = SCSI_INQUIRY
;
960 srb
->cmd
[1] = srb
->lun
<< 5;
964 i
= ss
->transport(srb
, ss
);
965 debug("inquiry returns %d\n", i
);
971 printf("error in inquiry\n");
977 static int usb_request_sense(ccb
*srb
, struct us_data
*ss
)
981 ptr
= (char *)srb
->pdata
;
982 memset(&srb
->cmd
[0], 0, 12);
983 srb
->cmd
[0] = SCSI_REQ_SENSE
;
984 srb
->cmd
[1] = srb
->lun
<< 5;
987 srb
->pdata
= &srb
->sense_buf
[0];
989 ss
->transport(srb
, ss
);
990 debug("Request Sense returned %02X %02X %02X\n",
991 srb
->sense_buf
[2], srb
->sense_buf
[12],
993 srb
->pdata
= (uchar
*)ptr
;
997 static int usb_test_unit_ready(ccb
*srb
, struct us_data
*ss
)
1002 memset(&srb
->cmd
[0], 0, 12);
1003 srb
->cmd
[0] = SCSI_TST_U_RDY
;
1004 srb
->cmd
[1] = srb
->lun
<< 5;
1007 if (ss
->transport(srb
, ss
) == USB_STOR_TRANSPORT_GOOD
) {
1008 ss
->flags
|= USB_READY
;
1011 usb_request_sense(srb
, ss
);
1013 * Check the Key Code Qualifier, if it matches
1014 * "Not Ready - medium not present"
1015 * (the sense Key equals 0x2 and the ASC is 0x3a)
1016 * return immediately as the medium being absent won't change
1017 * unless there is a user action.
1019 if ((srb
->sense_buf
[2] == 0x02) &&
1020 (srb
->sense_buf
[12] == 0x3a))
1023 } while (retries
--);
1028 static int usb_read_capacity(ccb
*srb
, struct us_data
*ss
)
1034 memset(&srb
->cmd
[0], 0, 12);
1035 srb
->cmd
[0] = SCSI_RD_CAPAC
;
1036 srb
->cmd
[1] = srb
->lun
<< 5;
1039 if (ss
->transport(srb
, ss
) == USB_STOR_TRANSPORT_GOOD
)
1046 static int usb_read_10(ccb
*srb
, struct us_data
*ss
, unsigned long start
,
1047 unsigned short blocks
)
1049 memset(&srb
->cmd
[0], 0, 12);
1050 srb
->cmd
[0] = SCSI_READ10
;
1051 srb
->cmd
[1] = srb
->lun
<< 5;
1052 srb
->cmd
[2] = ((unsigned char) (start
>> 24)) & 0xff;
1053 srb
->cmd
[3] = ((unsigned char) (start
>> 16)) & 0xff;
1054 srb
->cmd
[4] = ((unsigned char) (start
>> 8)) & 0xff;
1055 srb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
1056 srb
->cmd
[7] = ((unsigned char) (blocks
>> 8)) & 0xff;
1057 srb
->cmd
[8] = (unsigned char) blocks
& 0xff;
1059 debug("read10: start %lx blocks %x\n", start
, blocks
);
1060 return ss
->transport(srb
, ss
);
1063 static int usb_write_10(ccb
*srb
, struct us_data
*ss
, unsigned long start
,
1064 unsigned short blocks
)
1066 memset(&srb
->cmd
[0], 0, 12);
1067 srb
->cmd
[0] = SCSI_WRITE10
;
1068 srb
->cmd
[1] = srb
->lun
<< 5;
1069 srb
->cmd
[2] = ((unsigned char) (start
>> 24)) & 0xff;
1070 srb
->cmd
[3] = ((unsigned char) (start
>> 16)) & 0xff;
1071 srb
->cmd
[4] = ((unsigned char) (start
>> 8)) & 0xff;
1072 srb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
1073 srb
->cmd
[7] = ((unsigned char) (blocks
>> 8)) & 0xff;
1074 srb
->cmd
[8] = (unsigned char) blocks
& 0xff;
1076 debug("write10: start %lx blocks %x\n", start
, blocks
);
1077 return ss
->transport(srb
, ss
);
1081 #ifdef CONFIG_USB_BIN_FIXUP
1083 * Some USB storage devices queried for SCSI identification data respond with
1084 * binary strings, which if output to the console freeze the terminal. The
1085 * workaround is to modify the vendor and product strings read from such
1086 * device with proper values (as reported by 'usb info').
1088 * Vendor and product length limits are taken from the definition of
1089 * struct blk_desc in include/part.h.
1091 static void usb_bin_fixup(struct usb_device_descriptor descriptor
,
1092 unsigned char vendor
[],
1093 unsigned char product
[]) {
1094 const unsigned char max_vendor_len
= 40;
1095 const unsigned char max_product_len
= 20;
1096 if (descriptor
.idVendor
== 0x0424 && descriptor
.idProduct
== 0x223a) {
1097 strncpy((char *)vendor
, "SMSC", max_vendor_len
);
1098 strncpy((char *)product
, "Flash Media Cntrller",
1102 #endif /* CONFIG_USB_BIN_FIXUP */
1105 static unsigned long usb_stor_read(struct udevice
*dev
, lbaint_t blknr
,
1106 lbaint_t blkcnt
, void *buffer
)
1108 static unsigned long usb_stor_read(struct blk_desc
*block_dev
, lbaint_t blknr
,
1109 lbaint_t blkcnt
, void *buffer
)
1112 lbaint_t start
, blks
;
1114 unsigned short smallblks
;
1115 struct usb_device
*udev
;
1118 ccb
*srb
= &usb_ccb
;
1120 struct blk_desc
*block_dev
;
1127 block_dev
= dev_get_uclass_platdata(dev
);
1128 udev
= dev_get_parent_priv(dev_get_parent(dev
));
1129 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1131 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1132 udev
= usb_dev_desc
[block_dev
->devnum
].priv
;
1134 debug("%s: No device\n", __func__
);
1138 ss
= (struct us_data
*)udev
->privptr
;
1140 usb_disable_asynch(1); /* asynch transfer not allowed */
1141 srb
->lun
= block_dev
->lun
;
1142 buf_addr
= (uintptr_t)buffer
;
1146 debug("\nusb_read: dev %d startblk " LBAF
", blccnt " LBAF
" buffer %"
1147 PRIxPTR
"\n", block_dev
->devnum
, start
, blks
, buf_addr
);
1150 /* XXX need some comment here */
1152 srb
->pdata
= (unsigned char *)buf_addr
;
1153 if (blks
> USB_MAX_XFER_BLK
)
1154 smallblks
= USB_MAX_XFER_BLK
;
1156 smallblks
= (unsigned short) blks
;
1158 if (smallblks
== USB_MAX_XFER_BLK
)
1159 usb_show_progress();
1160 srb
->datalen
= block_dev
->blksz
* smallblks
;
1161 srb
->pdata
= (unsigned char *)buf_addr
;
1162 if (usb_read_10(srb
, ss
, start
, smallblks
)) {
1163 debug("Read ERROR\n");
1164 usb_request_sense(srb
, ss
);
1172 buf_addr
+= srb
->datalen
;
1173 } while (blks
!= 0);
1174 ss
->flags
&= ~USB_READY
;
1176 debug("usb_read: end startblk " LBAF
1177 ", blccnt %x buffer %" PRIxPTR
"\n",
1178 start
, smallblks
, buf_addr
);
1180 usb_disable_asynch(0); /* asynch transfer allowed */
1181 if (blkcnt
>= USB_MAX_XFER_BLK
)
1187 static unsigned long usb_stor_write(struct udevice
*dev
, lbaint_t blknr
,
1188 lbaint_t blkcnt
, const void *buffer
)
1190 static unsigned long usb_stor_write(struct blk_desc
*block_dev
, lbaint_t blknr
,
1191 lbaint_t blkcnt
, const void *buffer
)
1194 lbaint_t start
, blks
;
1196 unsigned short smallblks
;
1197 struct usb_device
*udev
;
1200 ccb
*srb
= &usb_ccb
;
1202 struct blk_desc
*block_dev
;
1210 block_dev
= dev_get_uclass_platdata(dev
);
1211 udev
= dev_get_parent_priv(dev_get_parent(dev
));
1212 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1214 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1215 udev
= usb_dev_desc
[block_dev
->devnum
].priv
;
1217 debug("%s: No device\n", __func__
);
1221 ss
= (struct us_data
*)udev
->privptr
;
1223 usb_disable_asynch(1); /* asynch transfer not allowed */
1225 srb
->lun
= block_dev
->lun
;
1226 buf_addr
= (uintptr_t)buffer
;
1230 debug("\nusb_write: dev %d startblk " LBAF
", blccnt " LBAF
" buffer %"
1231 PRIxPTR
"\n", block_dev
->devnum
, start
, blks
, buf_addr
);
1234 /* If write fails retry for max retry count else
1235 * return with number of blocks written successfully.
1238 srb
->pdata
= (unsigned char *)buf_addr
;
1239 if (blks
> USB_MAX_XFER_BLK
)
1240 smallblks
= USB_MAX_XFER_BLK
;
1242 smallblks
= (unsigned short) blks
;
1244 if (smallblks
== USB_MAX_XFER_BLK
)
1245 usb_show_progress();
1246 srb
->datalen
= block_dev
->blksz
* smallblks
;
1247 srb
->pdata
= (unsigned char *)buf_addr
;
1248 if (usb_write_10(srb
, ss
, start
, smallblks
)) {
1249 debug("Write ERROR\n");
1250 usb_request_sense(srb
, ss
);
1258 buf_addr
+= srb
->datalen
;
1259 } while (blks
!= 0);
1260 ss
->flags
&= ~USB_READY
;
1262 debug("usb_write: end startblk " LBAF
", blccnt %x buffer %"
1263 PRIxPTR
"\n", start
, smallblks
, buf_addr
);
1265 usb_disable_asynch(0); /* asynch transfer allowed */
1266 if (blkcnt
>= USB_MAX_XFER_BLK
)
1272 /* Probe to see if a new device is actually a Storage device */
1273 int usb_storage_probe(struct usb_device
*dev
, unsigned int ifnum
,
1276 struct usb_interface
*iface
;
1278 struct usb_endpoint_descriptor
*ep_desc
;
1279 unsigned int flags
= 0;
1281 /* let's examine the device now */
1282 iface
= &dev
->config
.if_desc
[ifnum
];
1284 if (dev
->descriptor
.bDeviceClass
!= 0 ||
1285 iface
->desc
.bInterfaceClass
!= USB_CLASS_MASS_STORAGE
||
1286 iface
->desc
.bInterfaceSubClass
< US_SC_MIN
||
1287 iface
->desc
.bInterfaceSubClass
> US_SC_MAX
) {
1288 debug("Not mass storage\n");
1289 /* if it's not a mass storage, we go no further */
1293 memset(ss
, 0, sizeof(struct us_data
));
1295 /* At this point, we know we've got a live one */
1296 debug("\n\nUSB Mass Storage device detected\n");
1298 /* Initialize the us_data structure with some useful info */
1302 ss
->attention_done
= 0;
1303 ss
->subclass
= iface
->desc
.bInterfaceSubClass
;
1304 ss
->protocol
= iface
->desc
.bInterfaceProtocol
;
1306 /* set the handler pointers based on the protocol */
1307 debug("Transport: ");
1308 switch (ss
->protocol
) {
1310 debug("Control/Bulk\n");
1311 ss
->transport
= usb_stor_CB_transport
;
1312 ss
->transport_reset
= usb_stor_CB_reset
;
1316 debug("Control/Bulk/Interrupt\n");
1317 ss
->transport
= usb_stor_CB_transport
;
1318 ss
->transport_reset
= usb_stor_CB_reset
;
1321 debug("Bulk/Bulk/Bulk\n");
1322 ss
->transport
= usb_stor_BBB_transport
;
1323 ss
->transport_reset
= usb_stor_BBB_reset
;
1326 printf("USB Storage Transport unknown / not yet implemented\n");
1332 * We are expecting a minimum of 2 endpoints - in and out (bulk).
1333 * An optional interrupt is OK (necessary for CBI protocol).
1334 * We will ignore any others.
1336 for (i
= 0; i
< iface
->desc
.bNumEndpoints
; i
++) {
1337 ep_desc
= &iface
->ep_desc
[i
];
1338 /* is it an BULK endpoint? */
1339 if ((ep_desc
->bmAttributes
&
1340 USB_ENDPOINT_XFERTYPE_MASK
) == USB_ENDPOINT_XFER_BULK
) {
1341 if (ep_desc
->bEndpointAddress
& USB_DIR_IN
)
1342 ss
->ep_in
= ep_desc
->bEndpointAddress
&
1343 USB_ENDPOINT_NUMBER_MASK
;
1346 ep_desc
->bEndpointAddress
&
1347 USB_ENDPOINT_NUMBER_MASK
;
1350 /* is it an interrupt endpoint? */
1351 if ((ep_desc
->bmAttributes
&
1352 USB_ENDPOINT_XFERTYPE_MASK
) == USB_ENDPOINT_XFER_INT
) {
1353 ss
->ep_int
= ep_desc
->bEndpointAddress
&
1354 USB_ENDPOINT_NUMBER_MASK
;
1355 ss
->irqinterval
= ep_desc
->bInterval
;
1358 debug("Endpoints In %d Out %d Int %d\n",
1359 ss
->ep_in
, ss
->ep_out
, ss
->ep_int
);
1361 /* Do some basic sanity checks, and bail if we find a problem */
1362 if (usb_set_interface(dev
, iface
->desc
.bInterfaceNumber
, 0) ||
1363 !ss
->ep_in
|| !ss
->ep_out
||
1364 (ss
->protocol
== US_PR_CBI
&& ss
->ep_int
== 0)) {
1365 debug("Problems with device\n");
1368 /* set class specific stuff */
1369 /* We only handle certain protocols. Currently, these are
1371 * The SFF8070 accepts the requests used in u-boot
1373 if (ss
->subclass
!= US_SC_UFI
&& ss
->subclass
!= US_SC_SCSI
&&
1374 ss
->subclass
!= US_SC_8070
) {
1375 printf("Sorry, protocol %d not yet supported.\n", ss
->subclass
);
1379 /* we had found an interrupt endpoint, prepare irq pipe
1380 * set up the IRQ pipe and handler
1382 ss
->irqinterval
= (ss
->irqinterval
> 0) ? ss
->irqinterval
: 255;
1383 ss
->irqpipe
= usb_rcvintpipe(ss
->pusb_dev
, ss
->ep_int
);
1384 ss
->irqmaxp
= usb_maxpacket(dev
, ss
->irqpipe
);
1385 dev
->irq_handle
= usb_stor_irq
;
1387 dev
->privptr
= (void *)ss
;
1391 int usb_stor_get_info(struct usb_device
*dev
, struct us_data
*ss
,
1392 struct blk_desc
*dev_desc
)
1394 unsigned char perq
, modi
;
1395 ALLOC_CACHE_ALIGN_BUFFER(u32
, cap
, 2);
1396 ALLOC_CACHE_ALIGN_BUFFER(u8
, usb_stor_buf
, 36);
1397 u32 capacity
, blksz
;
1398 ccb
*pccb
= &usb_ccb
;
1400 pccb
->pdata
= usb_stor_buf
;
1402 dev_desc
->target
= dev
->devnum
;
1403 pccb
->lun
= dev_desc
->lun
;
1404 debug(" address %d\n", dev_desc
->target
);
1406 if (usb_inquiry(pccb
, ss
)) {
1407 debug("%s: usb_inquiry() failed\n", __func__
);
1411 perq
= usb_stor_buf
[0];
1412 modi
= usb_stor_buf
[1];
1415 * Skip unknown devices (0x1f) and enclosure service devices (0x0d),
1416 * they would not respond to test_unit_ready .
1418 if (((perq
& 0x1f) == 0x1f) || ((perq
& 0x1f) == 0x0d)) {
1419 debug("%s: unknown/unsupported device\n", __func__
);
1422 if ((modi
&0x80) == 0x80) {
1423 /* drive is removable */
1424 dev_desc
->removable
= 1;
1426 memcpy(dev_desc
->vendor
, (const void *)&usb_stor_buf
[8], 8);
1427 memcpy(dev_desc
->product
, (const void *)&usb_stor_buf
[16], 16);
1428 memcpy(dev_desc
->revision
, (const void *)&usb_stor_buf
[32], 4);
1429 dev_desc
->vendor
[8] = 0;
1430 dev_desc
->product
[16] = 0;
1431 dev_desc
->revision
[4] = 0;
1432 #ifdef CONFIG_USB_BIN_FIXUP
1433 usb_bin_fixup(dev
->descriptor
, (uchar
*)dev_desc
->vendor
,
1434 (uchar
*)dev_desc
->product
);
1435 #endif /* CONFIG_USB_BIN_FIXUP */
1436 debug("ISO Vers %X, Response Data %X\n", usb_stor_buf
[2],
1438 if (usb_test_unit_ready(pccb
, ss
)) {
1439 printf("Device NOT ready\n"
1440 " Request Sense returned %02X %02X %02X\n",
1441 pccb
->sense_buf
[2], pccb
->sense_buf
[12],
1442 pccb
->sense_buf
[13]);
1443 if (dev_desc
->removable
== 1)
1444 dev_desc
->type
= perq
;
1447 pccb
->pdata
= (unsigned char *)cap
;
1448 memset(pccb
->pdata
, 0, 8);
1449 if (usb_read_capacity(pccb
, ss
) != 0) {
1450 printf("READ_CAP ERROR\n");
1454 ss
->flags
&= ~USB_READY
;
1455 debug("Read Capacity returns: 0x%08x, 0x%08x\n", cap
[0], cap
[1]);
1457 if (cap
[0] > (0x200000 * 10)) /* greater than 10 GByte */
1460 cap
[0] = cpu_to_be32(cap
[0]);
1461 cap
[1] = cpu_to_be32(cap
[1]);
1464 capacity
= be32_to_cpu(cap
[0]) + 1;
1465 blksz
= be32_to_cpu(cap
[1]);
1467 debug("Capacity = 0x%08x, blocksz = 0x%08x\n", capacity
, blksz
);
1468 dev_desc
->lba
= capacity
;
1469 dev_desc
->blksz
= blksz
;
1470 dev_desc
->log2blksz
= LOG2(dev_desc
->blksz
);
1471 dev_desc
->type
= perq
;
1472 debug(" address %d\n", dev_desc
->target
);
1477 #ifdef CONFIG_DM_USB
1479 static int usb_mass_storage_probe(struct udevice
*dev
)
1481 struct usb_device
*udev
= dev_get_parent_priv(dev
);
1484 usb_disable_asynch(1); /* asynch transfer not allowed */
1485 ret
= usb_stor_probe_device(udev
);
1486 usb_disable_asynch(0); /* asynch transfer allowed */
1491 static const struct udevice_id usb_mass_storage_ids
[] = {
1492 { .compatible
= "usb-mass-storage" },
1496 U_BOOT_DRIVER(usb_mass_storage
) = {
1497 .name
= "usb_mass_storage",
1498 .id
= UCLASS_MASS_STORAGE
,
1499 .of_match
= usb_mass_storage_ids
,
1500 .probe
= usb_mass_storage_probe
,
1502 .platdata_auto_alloc_size
= sizeof(struct us_data
),
1506 UCLASS_DRIVER(usb_mass_storage
) = {
1507 .id
= UCLASS_MASS_STORAGE
,
1508 .name
= "usb_mass_storage",
1511 static const struct usb_device_id mass_storage_id_table
[] = {
1513 .match_flags
= USB_DEVICE_ID_MATCH_INT_CLASS
,
1514 .bInterfaceClass
= USB_CLASS_MASS_STORAGE
1516 { } /* Terminating entry */
1519 U_BOOT_USB_DEVICE(usb_mass_storage
, mass_storage_id_table
);
1523 static const struct blk_ops usb_storage_ops
= {
1524 .read
= usb_stor_read
,
1525 .write
= usb_stor_write
,
1528 U_BOOT_DRIVER(usb_storage_blk
) = {
1529 .name
= "usb_storage_blk",
1531 .ops
= &usb_storage_ops
,
1534 U_BOOT_LEGACY_BLK(usb
) = {
1535 .if_typename
= "usb",
1536 .if_type
= IF_TYPE_USB
,
1537 .max_devs
= USB_MAX_STOR_DEV
,
1538 .desc
= usb_dev_desc
,