1 // SPDX-License-Identifier: GPL-2.0+
3 * Most of this source has been derived from the Linux USB
5 * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
6 * (c) 2000 David L. Brown, Jr. (usb-storage@davidb.org)
7 * (c) 1999 Michael Gee (michael@linuxspecific.com)
8 * (c) 2000 Yggdrasil Computing, Inc.
12 * (C) Copyright 2001 Denis Peter, MPL AG Switzerland
13 * Driver model conversion:
14 * (C) Copyright 2015 Google, Inc
16 * For BBB support (C) Copyright 2003
17 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
19 * BBB support based on /sys/dev/usb/umass.c from
24 * Currently only the CBI transport protocoll has been implemented, and it
25 * is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
26 * transport protocoll may work as well.
30 * Support for USB Mass Storage Devices (BBB) has been added. It has
31 * only been tested with USB memory sticks.
41 #include <asm/byteorder.h>
42 #include <asm/processor.h>
43 #include <dm/device-internal.h>
49 #undef BBB_COMDAT_TRACE
50 #undef BBB_XPORT_TRACE
53 /* direction table -- this indicates the direction of the data
54 * transfer for each command code -- a 1 indicates input
56 static const unsigned char us_direction
[256/8] = {
57 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
58 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
59 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
60 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
62 #define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
64 static struct scsi_cmd usb_ccb
__aligned(ARCH_DMA_MINALIGN
);
67 static int usb_max_devs
; /* number of highest available usb device */
69 #if !CONFIG_IS_ENABLED(BLK)
70 static struct blk_desc usb_dev_desc
[USB_MAX_STOR_DEV
];
74 typedef int (*trans_cmnd
)(struct scsi_cmd
*cb
, struct us_data
*data
);
75 typedef int (*trans_reset
)(struct us_data
*data
);
78 struct usb_device
*pusb_dev
; /* this usb_device */
80 unsigned int flags
; /* from filter initially */
81 # define USB_READY (1 << 0)
82 unsigned char ifnum
; /* interface number */
83 unsigned char ep_in
; /* in endpoint */
84 unsigned char ep_out
; /* out ....... */
85 unsigned char ep_int
; /* interrupt . */
86 unsigned char subclass
; /* as in overview */
87 unsigned char protocol
; /* .............. */
88 unsigned char attention_done
; /* force attn on first cmd */
89 unsigned short ip_data
; /* interrupt data */
90 int action
; /* what to do */
91 int ip_wanted
; /* needed */
92 int *irq_handle
; /* for USB int requests */
93 unsigned int irqpipe
; /* pipe for release_irq */
94 unsigned char irqmaxp
; /* max packed for irq Pipe */
95 unsigned char irqinterval
; /* Intervall for IRQ Pipe */
96 struct scsi_cmd
*srb
; /* current srb */
97 trans_reset transport_reset
; /* reset routine */
98 trans_cmnd transport
; /* transport routine */
99 unsigned short max_xfer_blk
; /* maximum transfer blocks */
102 #if !CONFIG_IS_ENABLED(BLK)
103 static struct us_data usb_stor
[USB_MAX_STOR_DEV
];
106 #define USB_STOR_TRANSPORT_GOOD 0
107 #define USB_STOR_TRANSPORT_FAILED -1
108 #define USB_STOR_TRANSPORT_ERROR -2
110 int usb_stor_get_info(struct usb_device
*dev
, struct us_data
*us
,
111 struct blk_desc
*dev_desc
);
112 int usb_storage_probe(struct usb_device
*dev
, unsigned int ifnum
,
114 #if CONFIG_IS_ENABLED(BLK)
115 static unsigned long usb_stor_read(struct udevice
*dev
, lbaint_t blknr
,
116 lbaint_t blkcnt
, void *buffer
);
117 static unsigned long usb_stor_write(struct udevice
*dev
, lbaint_t blknr
,
118 lbaint_t blkcnt
, const void *buffer
);
120 static unsigned long usb_stor_read(struct blk_desc
*block_dev
, lbaint_t blknr
,
121 lbaint_t blkcnt
, void *buffer
);
122 static unsigned long usb_stor_write(struct blk_desc
*block_dev
, lbaint_t blknr
,
123 lbaint_t blkcnt
, const void *buffer
);
125 void uhci_show_temp_int_td(void);
127 static void usb_show_progress(void)
132 /*******************************************************************************
133 * show info on storage devices; 'usb start/init' must be invoked earlier
134 * as we only retrieve structures populated during devices initialization
136 int usb_stor_info(void)
139 #if CONFIG_IS_ENABLED(BLK)
142 for (blk_first_device(IF_TYPE_USB
, &dev
);
144 blk_next_device(&dev
)) {
145 struct blk_desc
*desc
= dev_get_uclass_platdata(dev
);
147 printf(" Device %d: ", desc
->devnum
);
154 if (usb_max_devs
> 0) {
155 for (i
= 0; i
< usb_max_devs
; i
++) {
156 printf(" Device %d: ", i
);
157 dev_print(&usb_dev_desc
[i
]);
163 printf("No storage devices, perhaps not 'usb start'ed..?\n");
170 static unsigned int usb_get_max_lun(struct us_data
*us
)
173 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, result
, 1);
174 len
= usb_control_msg(us
->pusb_dev
,
175 usb_rcvctrlpipe(us
->pusb_dev
, 0),
177 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
| USB_DIR_IN
,
179 result
, sizeof(char),
180 USB_CNTL_TIMEOUT
* 5);
181 debug("Get Max LUN -> len = %i, result = %i\n", len
, (int) *result
);
182 return (len
> 0) ? *result
: 0;
185 static int usb_stor_probe_device(struct usb_device
*udev
)
189 #if CONFIG_IS_ENABLED(BLK)
190 struct us_data
*data
;
196 return -ENOENT
; /* no more devices available */
199 debug("\n\nProbing for storage\n");
200 #if CONFIG_IS_ENABLED(BLK)
202 * We store the us_data in the mass storage device's platdata. It
203 * is shared by all LUNs (block devices) attached to this mass storage
206 data
= dev_get_platdata(udev
->dev
);
207 if (!usb_storage_probe(udev
, 0, data
))
209 max_lun
= usb_get_max_lun(data
);
210 for (lun
= 0; lun
<= max_lun
; lun
++) {
211 struct blk_desc
*blkdev
;
215 snprintf(str
, sizeof(str
), "lun%d", lun
);
216 ret
= blk_create_devicef(udev
->dev
, "usb_storage_blk", str
,
217 IF_TYPE_USB
, usb_max_devs
, 512, 0,
220 debug("Cannot bind driver\n");
224 blkdev
= dev_get_uclass_platdata(dev
);
225 blkdev
->target
= 0xff;
228 ret
= usb_stor_get_info(udev
, data
, blkdev
);
231 debug("%s: Found device %p\n", __func__
, udev
);
233 debug("usb_stor_get_info: Invalid device\n");
234 ret
= device_unbind(dev
);
240 /* We don't have space to even probe if we hit the maximum */
241 if (usb_max_devs
== USB_MAX_STOR_DEV
) {
242 printf("max USB Storage Device reached: %d stopping\n",
247 if (!usb_storage_probe(udev
, 0, &usb_stor
[usb_max_devs
]))
251 * OK, it's a storage device. Iterate over its LUNs and populate
254 start
= usb_max_devs
;
256 max_lun
= usb_get_max_lun(&usb_stor
[usb_max_devs
]);
257 for (lun
= 0; lun
<= max_lun
&& usb_max_devs
< USB_MAX_STOR_DEV
;
259 struct blk_desc
*blkdev
;
261 blkdev
= &usb_dev_desc
[usb_max_devs
];
262 memset(blkdev
, '\0', sizeof(struct blk_desc
));
263 blkdev
->if_type
= IF_TYPE_USB
;
264 blkdev
->devnum
= usb_max_devs
;
265 blkdev
->part_type
= PART_TYPE_UNKNOWN
;
266 blkdev
->target
= 0xff;
267 blkdev
->type
= DEV_TYPE_UNKNOWN
;
268 blkdev
->block_read
= usb_stor_read
;
269 blkdev
->block_write
= usb_stor_write
;
273 if (usb_stor_get_info(udev
, &usb_stor
[start
],
274 &usb_dev_desc
[usb_max_devs
]) == 1) {
275 debug("partype: %d\n", blkdev
->part_type
);
277 debug("partype: %d\n", blkdev
->part_type
);
279 debug("%s: Found device %p\n", __func__
, udev
);
287 void usb_stor_reset(void)
292 /*******************************************************************************
293 * scan the usb and reports device info
294 * to the user if mode = 1
295 * returns current device or -1 if no
297 int usb_stor_scan(int mode
)
300 printf(" scanning usb for storage devices... ");
302 #if !CONFIG_IS_ENABLED(DM_USB)
305 usb_disable_asynch(1); /* asynch transfer not allowed */
308 for (i
= 0; i
< USB_MAX_DEVICE
; i
++) {
309 struct usb_device
*dev
;
311 dev
= usb_get_dev_index(i
); /* get device */
313 if (usb_stor_probe_device(dev
))
317 usb_disable_asynch(0); /* asynch transfer allowed */
319 printf("%d Storage Device(s) found\n", usb_max_devs
);
320 if (usb_max_devs
> 0)
325 static int usb_stor_irq(struct usb_device
*dev
)
328 us
= (struct us_data
*)dev
->privptr
;
338 static void usb_show_srb(struct scsi_cmd
*pccb
)
341 printf("SRB: len %d datalen 0x%lX\n ", pccb
->cmdlen
, pccb
->datalen
);
342 for (i
= 0; i
< 12; i
++)
343 printf("%02X ", pccb
->cmd
[i
]);
347 static void display_int_status(unsigned long tmp
)
349 printf("Status: %s %s %s %s %s %s %s\n",
350 (tmp
& USB_ST_ACTIVE
) ? "Active" : "",
351 (tmp
& USB_ST_STALLED
) ? "Stalled" : "",
352 (tmp
& USB_ST_BUF_ERR
) ? "Buffer Error" : "",
353 (tmp
& USB_ST_BABBLE_DET
) ? "Babble Det" : "",
354 (tmp
& USB_ST_NAK_REC
) ? "NAKed" : "",
355 (tmp
& USB_ST_CRC_ERR
) ? "CRC Error" : "",
356 (tmp
& USB_ST_BIT_ERR
) ? "Bitstuff Error" : "");
359 /***********************************************************************
360 * Data transfer routines
361 ***********************************************************************/
363 static int us_one_transfer(struct us_data
*us
, int pipe
, char *buf
, int length
)
372 /* determine the maximum packet size for these transfers */
373 max_size
= usb_maxpacket(us
->pusb_dev
, pipe
) * 16;
375 /* while we have data left to transfer */
378 /* calculate how long this will be -- maximum or a remainder */
379 this_xfer
= length
> max_size
? max_size
: length
;
382 /* setup the retry counter */
385 /* set up the transfer loop */
387 /* transfer the data */
388 debug("Bulk xfer 0x%lx(%d) try #%d\n",
389 (ulong
)map_to_sysmem(buf
), this_xfer
,
391 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, buf
,
393 USB_CNTL_TIMEOUT
* 5);
394 debug("bulk_msg returned %d xferred %d/%d\n",
395 result
, partial
, this_xfer
);
396 if (us
->pusb_dev
->status
!= 0) {
397 /* if we stall, we need to clear it before
401 display_int_status(us
->pusb_dev
->status
);
403 if (us
->pusb_dev
->status
& USB_ST_STALLED
) {
404 debug("stalled ->clearing endpoint" \
405 "halt for pipe 0x%x\n", pipe
);
406 stat
= us
->pusb_dev
->status
;
407 usb_clear_halt(us
->pusb_dev
, pipe
);
408 us
->pusb_dev
->status
= stat
;
409 if (this_xfer
== partial
) {
410 debug("bulk transferred" \
413 us
->pusb_dev
->status
);
419 if (us
->pusb_dev
->status
& USB_ST_NAK_REC
) {
420 debug("Device NAKed bulk_msg\n");
423 debug("bulk transferred with error");
424 if (this_xfer
== partial
) {
425 debug(" %ld, but data ok\n",
426 us
->pusb_dev
->status
);
429 /* if our try counter reaches 0, bail out */
430 debug(" %ld, data %d\n",
431 us
->pusb_dev
->status
, partial
);
435 /* update to show what data was transferred */
436 this_xfer
-= partial
;
438 /* continue until this transfer is done */
442 /* if we get here, we're done and successful */
446 static int usb_stor_BBB_reset(struct us_data
*us
)
452 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
454 * For Reset Recovery the host shall issue in the following order:
455 * a) a Bulk-Only Mass Storage Reset
456 * b) a Clear Feature HALT to the Bulk-In endpoint
457 * c) a Clear Feature HALT to the Bulk-Out endpoint
459 * This is done in 3 steps.
461 * If the reset doesn't succeed, the device should be port reset.
463 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
465 debug("BBB_reset\n");
466 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
468 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
469 0, us
->ifnum
, NULL
, 0, USB_CNTL_TIMEOUT
* 5);
471 if ((result
< 0) && (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
472 debug("RESET:stall\n");
476 /* long wait for reset */
478 debug("BBB_reset result %d: status %lX reset\n",
479 result
, us
->pusb_dev
->status
);
480 pipe
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
481 result
= usb_clear_halt(us
->pusb_dev
, pipe
);
482 /* long wait for reset */
484 debug("BBB_reset result %d: status %lX clearing IN endpoint\n",
485 result
, us
->pusb_dev
->status
);
486 /* long wait for reset */
487 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
488 result
= usb_clear_halt(us
->pusb_dev
, pipe
);
490 debug("BBB_reset result %d: status %lX clearing OUT endpoint\n",
491 result
, us
->pusb_dev
->status
);
492 debug("BBB_reset done\n");
496 /* FIXME: this reset function doesn't really reset the port, and it
497 * should. Actually it should probably do what it's doing here, and
498 * reset the port physically
500 static int usb_stor_CB_reset(struct us_data
*us
)
502 unsigned char cmd
[12];
506 memset(cmd
, 0xff, sizeof(cmd
));
507 cmd
[0] = SCSI_SEND_DIAG
;
509 result
= usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
511 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
512 0, us
->ifnum
, cmd
, sizeof(cmd
),
513 USB_CNTL_TIMEOUT
* 5);
515 /* long wait for reset */
517 debug("CB_reset result %d: status %lX clearing endpoint halt\n",
518 result
, us
->pusb_dev
->status
);
519 usb_clear_halt(us
->pusb_dev
, usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
));
520 usb_clear_halt(us
->pusb_dev
, usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_out
));
522 debug("CB_reset done\n");
527 * Set up the command for a BBB device. Note that the actual SCSI
528 * command is copied into cbw.CBWCDB.
530 static int usb_stor_BBB_comdat(struct scsi_cmd
*srb
, struct us_data
*us
)
536 ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_cbw
, cbw
, 1);
538 dir_in
= US_DIRECTION(srb
->cmd
[0]);
540 #ifdef BBB_COMDAT_TRACE
541 printf("dir %d lun %d cmdlen %d cmd %p datalen %lu pdata %p\n",
542 dir_in
, srb
->lun
, srb
->cmdlen
, srb
->cmd
, srb
->datalen
,
545 for (result
= 0; result
< srb
->cmdlen
; result
++)
546 printf("cmd[%d] %#x ", result
, srb
->cmd
[result
]);
551 if (!(srb
->cmdlen
<= CBWCDBLENGTH
)) {
552 debug("usb_stor_BBB_comdat:cmdlen too large\n");
556 /* always OUT to the ep */
557 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
559 cbw
->dCBWSignature
= cpu_to_le32(CBWSIGNATURE
);
560 cbw
->dCBWTag
= cpu_to_le32(CBWTag
++);
561 cbw
->dCBWDataTransferLength
= cpu_to_le32(srb
->datalen
);
562 cbw
->bCBWFlags
= (dir_in
? CBWFLAGS_IN
: CBWFLAGS_OUT
);
563 cbw
->bCBWLUN
= srb
->lun
;
564 cbw
->bCDBLength
= srb
->cmdlen
;
565 /* copy the command data into the CBW command data buffer */
568 memcpy(cbw
->CBWCDB
, srb
->cmd
, srb
->cmdlen
);
569 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, cbw
, UMASS_BBB_CBW_SIZE
,
570 &actlen
, USB_CNTL_TIMEOUT
* 5);
572 debug("usb_stor_BBB_comdat:usb_bulk_msg error\n");
576 /* FIXME: we also need a CBI_command which sets up the completion
577 * interrupt, and waits for it
579 static int usb_stor_CB_comdat(struct scsi_cmd
*srb
, struct us_data
*us
)
584 unsigned long status
;
587 dir_in
= US_DIRECTION(srb
->cmd
[0]);
590 pipe
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
592 pipe
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
595 debug("CBI gets a command: Try %d\n", 5 - retry
);
599 /* let's send the command via the control pipe */
600 result
= usb_control_msg(us
->pusb_dev
,
601 usb_sndctrlpipe(us
->pusb_dev
, 0),
603 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
605 srb
->cmd
, srb
->cmdlen
,
606 USB_CNTL_TIMEOUT
* 5);
607 debug("CB_transport: control msg returned %d, status %lX\n",
608 result
, us
->pusb_dev
->status
);
609 /* check the return code for the command */
611 if (us
->pusb_dev
->status
& USB_ST_STALLED
) {
612 status
= us
->pusb_dev
->status
;
613 debug(" stall during command found," \
615 usb_clear_halt(us
->pusb_dev
,
616 usb_sndctrlpipe(us
->pusb_dev
, 0));
617 us
->pusb_dev
->status
= status
;
619 debug(" error during command %02X" \
620 " Stat = %lX\n", srb
->cmd
[0],
621 us
->pusb_dev
->status
);
624 /* transfer the data payload for this command, if one exists*/
626 debug("CB_transport: control msg returned %d," \
627 " direction is %s to go 0x%lx\n", result
,
628 dir_in
? "IN" : "OUT", srb
->datalen
);
630 result
= us_one_transfer(us
, pipe
, (char *)srb
->pdata
,
632 debug("CBI attempted to transfer data," \
633 " result is %d status %lX, len %d\n",
634 result
, us
->pusb_dev
->status
,
635 us
->pusb_dev
->act_len
);
636 if (!(us
->pusb_dev
->status
& USB_ST_NAK_REC
))
638 } /* if (srb->datalen) */
648 static int usb_stor_CBI_get_status(struct scsi_cmd
*srb
, struct us_data
*us
)
653 submit_int_msg(us
->pusb_dev
, us
->irqpipe
,
654 (void *) &us
->ip_data
, us
->irqmaxp
, us
->irqinterval
);
657 if (us
->ip_wanted
== 0)
662 printf(" Did not get interrupt on CBI\n");
664 return USB_STOR_TRANSPORT_ERROR
;
666 debug("Got interrupt data 0x%x, transferred %d status 0x%lX\n",
667 us
->ip_data
, us
->pusb_dev
->irq_act_len
,
668 us
->pusb_dev
->irq_status
);
669 /* UFI gives us ASC and ASCQ, like a request sense */
670 if (us
->subclass
== US_SC_UFI
) {
671 if (srb
->cmd
[0] == SCSI_REQ_SENSE
||
672 srb
->cmd
[0] == SCSI_INQUIRY
)
673 return USB_STOR_TRANSPORT_GOOD
; /* Good */
674 else if (us
->ip_data
)
675 return USB_STOR_TRANSPORT_FAILED
;
677 return USB_STOR_TRANSPORT_GOOD
;
679 /* otherwise, we interpret the data normally */
680 switch (us
->ip_data
) {
682 return USB_STOR_TRANSPORT_GOOD
;
684 return USB_STOR_TRANSPORT_FAILED
;
686 return USB_STOR_TRANSPORT_ERROR
;
688 return USB_STOR_TRANSPORT_ERROR
;
691 #define USB_TRANSPORT_UNKNOWN_RETRY 5
692 #define USB_TRANSPORT_NOT_READY_RETRY 10
694 /* clear a stall on an endpoint - special for BBB devices */
695 static int usb_stor_BBB_clear_endpt_stall(struct us_data
*us
, __u8 endpt
)
697 /* ENDPOINT_HALT = 0, so set value to 0 */
698 return usb_control_msg(us
->pusb_dev
, usb_sndctrlpipe(us
->pusb_dev
, 0),
699 USB_REQ_CLEAR_FEATURE
, USB_RECIP_ENDPOINT
, 0,
700 endpt
, NULL
, 0, USB_CNTL_TIMEOUT
* 5);
703 static int usb_stor_BBB_transport(struct scsi_cmd
*srb
, struct us_data
*us
)
707 int actlen
, data_actlen
;
708 unsigned int pipe
, pipein
, pipeout
;
709 ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_csw
, csw
, 1);
710 #ifdef BBB_XPORT_TRACE
715 dir_in
= US_DIRECTION(srb
->cmd
[0]);
718 debug("COMMAND phase\n");
719 result
= usb_stor_BBB_comdat(srb
, us
);
721 debug("failed to send CBW status %ld\n",
722 us
->pusb_dev
->status
);
723 usb_stor_BBB_reset(us
);
724 return USB_STOR_TRANSPORT_FAILED
;
726 if (!(us
->flags
& USB_READY
))
728 pipein
= usb_rcvbulkpipe(us
->pusb_dev
, us
->ep_in
);
729 pipeout
= usb_sndbulkpipe(us
->pusb_dev
, us
->ep_out
);
730 /* DATA phase + error handling */
732 /* no data, go immediately to the STATUS phase */
733 if (srb
->datalen
== 0)
735 debug("DATA phase\n");
741 result
= usb_bulk_msg(us
->pusb_dev
, pipe
, srb
->pdata
, srb
->datalen
,
742 &data_actlen
, USB_CNTL_TIMEOUT
* 5);
743 /* special handling of STALL in DATA phase */
744 if ((result
< 0) && (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
745 debug("DATA:stall\n");
746 /* clear the STALL on the endpoint */
747 result
= usb_stor_BBB_clear_endpt_stall(us
,
748 dir_in
? us
->ep_in
: us
->ep_out
);
750 /* continue on to STATUS phase */
754 debug("usb_bulk_msg error status %ld\n",
755 us
->pusb_dev
->status
);
756 usb_stor_BBB_reset(us
);
757 return USB_STOR_TRANSPORT_FAILED
;
759 #ifdef BBB_XPORT_TRACE
760 for (index
= 0; index
< data_actlen
; index
++)
761 printf("pdata[%d] %#x ", index
, srb
->pdata
[index
]);
764 /* STATUS phase + error handling */
768 debug("STATUS phase\n");
769 result
= usb_bulk_msg(us
->pusb_dev
, pipein
, csw
, UMASS_BBB_CSW_SIZE
,
770 &actlen
, USB_CNTL_TIMEOUT
*5);
772 /* special handling of STALL in STATUS phase */
773 if ((result
< 0) && (retry
< 1) &&
774 (us
->pusb_dev
->status
& USB_ST_STALLED
)) {
775 debug("STATUS:stall\n");
776 /* clear the STALL on the endpoint */
777 result
= usb_stor_BBB_clear_endpt_stall(us
, us
->ep_in
);
778 if (result
>= 0 && (retry
++ < 1))
783 debug("usb_bulk_msg error status %ld\n",
784 us
->pusb_dev
->status
);
785 usb_stor_BBB_reset(us
);
786 return USB_STOR_TRANSPORT_FAILED
;
788 #ifdef BBB_XPORT_TRACE
789 ptr
= (unsigned char *)csw
;
790 for (index
= 0; index
< UMASS_BBB_CSW_SIZE
; index
++)
791 printf("ptr[%d] %#x ", index
, ptr
[index
]);
794 /* misuse pipe to get the residue */
795 pipe
= le32_to_cpu(csw
->dCSWDataResidue
);
796 if (pipe
== 0 && srb
->datalen
!= 0 && srb
->datalen
- data_actlen
!= 0)
797 pipe
= srb
->datalen
- data_actlen
;
798 if (CSWSIGNATURE
!= le32_to_cpu(csw
->dCSWSignature
)) {
799 debug("!CSWSIGNATURE\n");
800 usb_stor_BBB_reset(us
);
801 return USB_STOR_TRANSPORT_FAILED
;
802 } else if ((CBWTag
- 1) != le32_to_cpu(csw
->dCSWTag
)) {
804 usb_stor_BBB_reset(us
);
805 return USB_STOR_TRANSPORT_FAILED
;
806 } else if (csw
->bCSWStatus
> CSWSTATUS_PHASE
) {
808 usb_stor_BBB_reset(us
);
809 return USB_STOR_TRANSPORT_FAILED
;
810 } else if (csw
->bCSWStatus
== CSWSTATUS_PHASE
) {
812 usb_stor_BBB_reset(us
);
813 return USB_STOR_TRANSPORT_FAILED
;
814 } else if (data_actlen
> srb
->datalen
) {
815 debug("transferred %dB instead of %ldB\n",
816 data_actlen
, srb
->datalen
);
817 return USB_STOR_TRANSPORT_FAILED
;
818 } else if (csw
->bCSWStatus
== CSWSTATUS_FAILED
) {
820 return USB_STOR_TRANSPORT_FAILED
;
826 static int usb_stor_CB_transport(struct scsi_cmd
*srb
, struct us_data
*us
)
829 struct scsi_cmd
*psrb
;
830 struct scsi_cmd reqsrb
;
834 status
= USB_STOR_TRANSPORT_GOOD
;
837 /* issue the command */
839 result
= usb_stor_CB_comdat(srb
, us
);
840 debug("command / Data returned %d, status %lX\n",
841 result
, us
->pusb_dev
->status
);
842 /* if this is an CBI Protocol, get IRQ */
843 if (us
->protocol
== US_PR_CBI
) {
844 status
= usb_stor_CBI_get_status(srb
, us
);
845 /* if the status is error, report it */
846 if (status
== USB_STOR_TRANSPORT_ERROR
) {
847 debug(" USB CBI Command Error\n");
850 srb
->sense_buf
[12] = (unsigned char)(us
->ip_data
>> 8);
851 srb
->sense_buf
[13] = (unsigned char)(us
->ip_data
& 0xff);
853 /* if the status is good, report it */
854 if (status
== USB_STOR_TRANSPORT_GOOD
) {
855 debug(" USB CBI Command Good\n");
860 /* do we have to issue an auto request? */
861 /* HERE we have to check the result */
862 if ((result
< 0) && !(us
->pusb_dev
->status
& USB_ST_STALLED
)) {
863 debug("ERROR %lX\n", us
->pusb_dev
->status
);
864 us
->transport_reset(us
);
865 return USB_STOR_TRANSPORT_ERROR
;
867 if ((us
->protocol
== US_PR_CBI
) &&
868 ((srb
->cmd
[0] == SCSI_REQ_SENSE
) ||
869 (srb
->cmd
[0] == SCSI_INQUIRY
))) {
870 /* do not issue an autorequest after request sense */
871 debug("No auto request and good\n");
872 return USB_STOR_TRANSPORT_GOOD
;
874 /* issue an request_sense */
875 memset(&psrb
->cmd
[0], 0, 12);
876 psrb
->cmd
[0] = SCSI_REQ_SENSE
;
877 psrb
->cmd
[1] = srb
->lun
<< 5;
880 psrb
->pdata
= &srb
->sense_buf
[0];
882 /* issue the command */
883 result
= usb_stor_CB_comdat(psrb
, us
);
884 debug("auto request returned %d\n", result
);
885 /* if this is an CBI Protocol, get IRQ */
886 if (us
->protocol
== US_PR_CBI
)
887 status
= usb_stor_CBI_get_status(psrb
, us
);
889 if ((result
< 0) && !(us
->pusb_dev
->status
& USB_ST_STALLED
)) {
890 debug(" AUTO REQUEST ERROR %ld\n",
891 us
->pusb_dev
->status
);
892 return USB_STOR_TRANSPORT_ERROR
;
894 debug("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
895 srb
->sense_buf
[0], srb
->sense_buf
[2],
896 srb
->sense_buf
[12], srb
->sense_buf
[13]);
897 /* Check the auto request result */
898 if ((srb
->sense_buf
[2] == 0) &&
899 (srb
->sense_buf
[12] == 0) &&
900 (srb
->sense_buf
[13] == 0)) {
902 return USB_STOR_TRANSPORT_GOOD
;
905 /* Check the auto request result */
906 switch (srb
->sense_buf
[2]) {
908 /* Recovered Error */
909 return USB_STOR_TRANSPORT_GOOD
;
913 if (notready
++ > USB_TRANSPORT_NOT_READY_RETRY
) {
914 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
915 " 0x%02X (NOT READY)\n", srb
->cmd
[0],
916 srb
->sense_buf
[0], srb
->sense_buf
[2],
917 srb
->sense_buf
[12], srb
->sense_buf
[13]);
918 return USB_STOR_TRANSPORT_FAILED
;
925 if (retry
++ > USB_TRANSPORT_UNKNOWN_RETRY
) {
926 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
927 " 0x%02X\n", srb
->cmd
[0], srb
->sense_buf
[0],
928 srb
->sense_buf
[2], srb
->sense_buf
[12],
930 return USB_STOR_TRANSPORT_FAILED
;
935 return USB_STOR_TRANSPORT_FAILED
;
938 static void usb_stor_set_max_xfer_blk(struct usb_device
*udev
,
942 size_t __maybe_unused size
;
943 int __maybe_unused ret
;
945 #if !CONFIG_IS_ENABLED(DM_USB)
946 #ifdef CONFIG_USB_EHCI_HCD
948 * The U-Boot EHCI driver can handle any transfer length as long as
949 * there is enough free heap space left, but the SCSI READ(10) and
950 * WRITE(10) commands are limited to 65535 blocks.
957 ret
= usb_get_max_xfer_size(udev
, (size_t *)&size
);
959 /* unimplemented, let's use default 20 */
962 if (size
> USHRT_MAX
* 512)
963 size
= USHRT_MAX
* 512;
968 us
->max_xfer_blk
= blk
;
971 static int usb_inquiry(struct scsi_cmd
*srb
, struct us_data
*ss
)
976 memset(&srb
->cmd
[0], 0, 12);
977 srb
->cmd
[0] = SCSI_INQUIRY
;
978 srb
->cmd
[1] = srb
->lun
<< 5;
982 i
= ss
->transport(srb
, ss
);
983 debug("inquiry returns %d\n", i
);
989 printf("error in inquiry\n");
995 static int usb_request_sense(struct scsi_cmd
*srb
, struct us_data
*ss
)
999 ptr
= (char *)srb
->pdata
;
1000 memset(&srb
->cmd
[0], 0, 12);
1001 srb
->cmd
[0] = SCSI_REQ_SENSE
;
1002 srb
->cmd
[1] = srb
->lun
<< 5;
1005 srb
->pdata
= &srb
->sense_buf
[0];
1007 ss
->transport(srb
, ss
);
1008 debug("Request Sense returned %02X %02X %02X\n",
1009 srb
->sense_buf
[2], srb
->sense_buf
[12],
1010 srb
->sense_buf
[13]);
1011 srb
->pdata
= (uchar
*)ptr
;
1015 static int usb_test_unit_ready(struct scsi_cmd
*srb
, struct us_data
*ss
)
1020 memset(&srb
->cmd
[0], 0, 12);
1021 srb
->cmd
[0] = SCSI_TST_U_RDY
;
1022 srb
->cmd
[1] = srb
->lun
<< 5;
1025 if (ss
->transport(srb
, ss
) == USB_STOR_TRANSPORT_GOOD
) {
1026 ss
->flags
|= USB_READY
;
1029 usb_request_sense(srb
, ss
);
1031 * Check the Key Code Qualifier, if it matches
1032 * "Not Ready - medium not present"
1033 * (the sense Key equals 0x2 and the ASC is 0x3a)
1034 * return immediately as the medium being absent won't change
1035 * unless there is a user action.
1037 if ((srb
->sense_buf
[2] == 0x02) &&
1038 (srb
->sense_buf
[12] == 0x3a))
1041 } while (retries
--);
1046 static int usb_read_capacity(struct scsi_cmd
*srb
, struct us_data
*ss
)
1052 memset(&srb
->cmd
[0], 0, 12);
1053 srb
->cmd
[0] = SCSI_RD_CAPAC
;
1054 srb
->cmd
[1] = srb
->lun
<< 5;
1057 if (ss
->transport(srb
, ss
) == USB_STOR_TRANSPORT_GOOD
)
1064 static int usb_read_10(struct scsi_cmd
*srb
, struct us_data
*ss
,
1065 unsigned long start
, unsigned short blocks
)
1067 memset(&srb
->cmd
[0], 0, 12);
1068 srb
->cmd
[0] = SCSI_READ10
;
1069 srb
->cmd
[1] = srb
->lun
<< 5;
1070 srb
->cmd
[2] = ((unsigned char) (start
>> 24)) & 0xff;
1071 srb
->cmd
[3] = ((unsigned char) (start
>> 16)) & 0xff;
1072 srb
->cmd
[4] = ((unsigned char) (start
>> 8)) & 0xff;
1073 srb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
1074 srb
->cmd
[7] = ((unsigned char) (blocks
>> 8)) & 0xff;
1075 srb
->cmd
[8] = (unsigned char) blocks
& 0xff;
1077 debug("read10: start %lx blocks %x\n", start
, blocks
);
1078 return ss
->transport(srb
, ss
);
1081 static int usb_write_10(struct scsi_cmd
*srb
, struct us_data
*ss
,
1082 unsigned long start
, unsigned short blocks
)
1084 memset(&srb
->cmd
[0], 0, 12);
1085 srb
->cmd
[0] = SCSI_WRITE10
;
1086 srb
->cmd
[1] = srb
->lun
<< 5;
1087 srb
->cmd
[2] = ((unsigned char) (start
>> 24)) & 0xff;
1088 srb
->cmd
[3] = ((unsigned char) (start
>> 16)) & 0xff;
1089 srb
->cmd
[4] = ((unsigned char) (start
>> 8)) & 0xff;
1090 srb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
1091 srb
->cmd
[7] = ((unsigned char) (blocks
>> 8)) & 0xff;
1092 srb
->cmd
[8] = (unsigned char) blocks
& 0xff;
1094 debug("write10: start %lx blocks %x\n", start
, blocks
);
1095 return ss
->transport(srb
, ss
);
1099 #ifdef CONFIG_USB_BIN_FIXUP
1101 * Some USB storage devices queried for SCSI identification data respond with
1102 * binary strings, which if output to the console freeze the terminal. The
1103 * workaround is to modify the vendor and product strings read from such
1104 * device with proper values (as reported by 'usb info').
1106 * Vendor and product length limits are taken from the definition of
1107 * struct blk_desc in include/part.h.
1109 static void usb_bin_fixup(struct usb_device_descriptor descriptor
,
1110 unsigned char vendor
[],
1111 unsigned char product
[]) {
1112 const unsigned char max_vendor_len
= 40;
1113 const unsigned char max_product_len
= 20;
1114 if (descriptor
.idVendor
== 0x0424 && descriptor
.idProduct
== 0x223a) {
1115 strncpy((char *)vendor
, "SMSC", max_vendor_len
);
1116 strncpy((char *)product
, "Flash Media Cntrller",
1120 #endif /* CONFIG_USB_BIN_FIXUP */
1122 #if CONFIG_IS_ENABLED(BLK)
1123 static unsigned long usb_stor_read(struct udevice
*dev
, lbaint_t blknr
,
1124 lbaint_t blkcnt
, void *buffer
)
1126 static unsigned long usb_stor_read(struct blk_desc
*block_dev
, lbaint_t blknr
,
1127 lbaint_t blkcnt
, void *buffer
)
1130 lbaint_t start
, blks
;
1132 unsigned short smallblks
;
1133 struct usb_device
*udev
;
1136 struct scsi_cmd
*srb
= &usb_ccb
;
1137 #if CONFIG_IS_ENABLED(BLK)
1138 struct blk_desc
*block_dev
;
1144 #if CONFIG_IS_ENABLED(BLK)
1145 block_dev
= dev_get_uclass_platdata(dev
);
1146 udev
= dev_get_parent_priv(dev_get_parent(dev
));
1147 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1149 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1150 udev
= usb_dev_desc
[block_dev
->devnum
].priv
;
1152 debug("%s: No device\n", __func__
);
1156 ss
= (struct us_data
*)udev
->privptr
;
1158 usb_disable_asynch(1); /* asynch transfer not allowed */
1159 srb
->lun
= block_dev
->lun
;
1160 buf_addr
= (uintptr_t)buffer
;
1164 debug("\nusb_read: dev %d startblk " LBAF
", blccnt " LBAF
" buffer %lx\n",
1165 block_dev
->devnum
, start
, blks
, buf_addr
);
1168 /* XXX need some comment here */
1170 srb
->pdata
= (unsigned char *)buf_addr
;
1171 if (blks
> ss
->max_xfer_blk
)
1172 smallblks
= ss
->max_xfer_blk
;
1174 smallblks
= (unsigned short) blks
;
1176 if (smallblks
== ss
->max_xfer_blk
)
1177 usb_show_progress();
1178 srb
->datalen
= block_dev
->blksz
* smallblks
;
1179 srb
->pdata
= (unsigned char *)buf_addr
;
1180 if (usb_read_10(srb
, ss
, start
, smallblks
)) {
1181 debug("Read ERROR\n");
1182 usb_request_sense(srb
, ss
);
1190 buf_addr
+= srb
->datalen
;
1191 } while (blks
!= 0);
1192 ss
->flags
&= ~USB_READY
;
1194 debug("usb_read: end startblk " LBAF
", blccnt %x buffer %lx\n",
1195 start
, smallblks
, buf_addr
);
1197 usb_disable_asynch(0); /* asynch transfer allowed */
1198 if (blkcnt
>= ss
->max_xfer_blk
)
1203 #if CONFIG_IS_ENABLED(BLK)
1204 static unsigned long usb_stor_write(struct udevice
*dev
, lbaint_t blknr
,
1205 lbaint_t blkcnt
, const void *buffer
)
1207 static unsigned long usb_stor_write(struct blk_desc
*block_dev
, lbaint_t blknr
,
1208 lbaint_t blkcnt
, const void *buffer
)
1211 lbaint_t start
, blks
;
1213 unsigned short smallblks
;
1214 struct usb_device
*udev
;
1217 struct scsi_cmd
*srb
= &usb_ccb
;
1218 #if CONFIG_IS_ENABLED(BLK)
1219 struct blk_desc
*block_dev
;
1226 #if CONFIG_IS_ENABLED(BLK)
1227 block_dev
= dev_get_uclass_platdata(dev
);
1228 udev
= dev_get_parent_priv(dev_get_parent(dev
));
1229 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1231 debug("\nusb_read: udev %d\n", block_dev
->devnum
);
1232 udev
= usb_dev_desc
[block_dev
->devnum
].priv
;
1234 debug("%s: No device\n", __func__
);
1238 ss
= (struct us_data
*)udev
->privptr
;
1240 usb_disable_asynch(1); /* asynch transfer not allowed */
1242 srb
->lun
= block_dev
->lun
;
1243 buf_addr
= (uintptr_t)buffer
;
1247 debug("\nusb_write: dev %d startblk " LBAF
", blccnt " LBAF
" buffer %lx\n",
1248 block_dev
->devnum
, start
, blks
, buf_addr
);
1251 /* If write fails retry for max retry count else
1252 * return with number of blocks written successfully.
1255 srb
->pdata
= (unsigned char *)buf_addr
;
1256 if (blks
> ss
->max_xfer_blk
)
1257 smallblks
= ss
->max_xfer_blk
;
1259 smallblks
= (unsigned short) blks
;
1261 if (smallblks
== ss
->max_xfer_blk
)
1262 usb_show_progress();
1263 srb
->datalen
= block_dev
->blksz
* smallblks
;
1264 srb
->pdata
= (unsigned char *)buf_addr
;
1265 if (usb_write_10(srb
, ss
, start
, smallblks
)) {
1266 debug("Write ERROR\n");
1267 usb_request_sense(srb
, ss
);
1275 buf_addr
+= srb
->datalen
;
1276 } while (blks
!= 0);
1277 ss
->flags
&= ~USB_READY
;
1279 debug("usb_write: end startblk " LBAF
", blccnt %x buffer %lx\n",
1280 start
, smallblks
, buf_addr
);
1282 usb_disable_asynch(0); /* asynch transfer allowed */
1283 if (blkcnt
>= ss
->max_xfer_blk
)
1289 /* Probe to see if a new device is actually a Storage device */
1290 int usb_storage_probe(struct usb_device
*dev
, unsigned int ifnum
,
1293 struct usb_interface
*iface
;
1295 struct usb_endpoint_descriptor
*ep_desc
;
1296 unsigned int flags
= 0;
1298 /* let's examine the device now */
1299 iface
= &dev
->config
.if_desc
[ifnum
];
1301 if (dev
->descriptor
.bDeviceClass
!= 0 ||
1302 iface
->desc
.bInterfaceClass
!= USB_CLASS_MASS_STORAGE
||
1303 iface
->desc
.bInterfaceSubClass
< US_SC_MIN
||
1304 iface
->desc
.bInterfaceSubClass
> US_SC_MAX
) {
1305 debug("Not mass storage\n");
1306 /* if it's not a mass storage, we go no further */
1310 memset(ss
, 0, sizeof(struct us_data
));
1312 /* At this point, we know we've got a live one */
1313 debug("\n\nUSB Mass Storage device detected\n");
1315 /* Initialize the us_data structure with some useful info */
1319 ss
->attention_done
= 0;
1320 ss
->subclass
= iface
->desc
.bInterfaceSubClass
;
1321 ss
->protocol
= iface
->desc
.bInterfaceProtocol
;
1323 /* set the handler pointers based on the protocol */
1324 debug("Transport: ");
1325 switch (ss
->protocol
) {
1327 debug("Control/Bulk\n");
1328 ss
->transport
= usb_stor_CB_transport
;
1329 ss
->transport_reset
= usb_stor_CB_reset
;
1333 debug("Control/Bulk/Interrupt\n");
1334 ss
->transport
= usb_stor_CB_transport
;
1335 ss
->transport_reset
= usb_stor_CB_reset
;
1338 debug("Bulk/Bulk/Bulk\n");
1339 ss
->transport
= usb_stor_BBB_transport
;
1340 ss
->transport_reset
= usb_stor_BBB_reset
;
1343 printf("USB Storage Transport unknown / not yet implemented\n");
1349 * We are expecting a minimum of 2 endpoints - in and out (bulk).
1350 * An optional interrupt is OK (necessary for CBI protocol).
1351 * We will ignore any others.
1353 for (i
= 0; i
< iface
->desc
.bNumEndpoints
; i
++) {
1354 ep_desc
= &iface
->ep_desc
[i
];
1355 /* is it an BULK endpoint? */
1356 if ((ep_desc
->bmAttributes
&
1357 USB_ENDPOINT_XFERTYPE_MASK
) == USB_ENDPOINT_XFER_BULK
) {
1358 if (ep_desc
->bEndpointAddress
& USB_DIR_IN
)
1359 ss
->ep_in
= ep_desc
->bEndpointAddress
&
1360 USB_ENDPOINT_NUMBER_MASK
;
1363 ep_desc
->bEndpointAddress
&
1364 USB_ENDPOINT_NUMBER_MASK
;
1367 /* is it an interrupt endpoint? */
1368 if ((ep_desc
->bmAttributes
&
1369 USB_ENDPOINT_XFERTYPE_MASK
) == USB_ENDPOINT_XFER_INT
) {
1370 ss
->ep_int
= ep_desc
->bEndpointAddress
&
1371 USB_ENDPOINT_NUMBER_MASK
;
1372 ss
->irqinterval
= ep_desc
->bInterval
;
1375 debug("Endpoints In %d Out %d Int %d\n",
1376 ss
->ep_in
, ss
->ep_out
, ss
->ep_int
);
1378 /* Do some basic sanity checks, and bail if we find a problem */
1379 if (usb_set_interface(dev
, iface
->desc
.bInterfaceNumber
, 0) ||
1380 !ss
->ep_in
|| !ss
->ep_out
||
1381 (ss
->protocol
== US_PR_CBI
&& ss
->ep_int
== 0)) {
1382 debug("Problems with device\n");
1385 /* set class specific stuff */
1386 /* We only handle certain protocols. Currently, these are
1388 * The SFF8070 accepts the requests used in u-boot
1390 if (ss
->subclass
!= US_SC_UFI
&& ss
->subclass
!= US_SC_SCSI
&&
1391 ss
->subclass
!= US_SC_8070
) {
1392 printf("Sorry, protocol %d not yet supported.\n", ss
->subclass
);
1396 /* we had found an interrupt endpoint, prepare irq pipe
1397 * set up the IRQ pipe and handler
1399 ss
->irqinterval
= (ss
->irqinterval
> 0) ? ss
->irqinterval
: 255;
1400 ss
->irqpipe
= usb_rcvintpipe(ss
->pusb_dev
, ss
->ep_int
);
1401 ss
->irqmaxp
= usb_maxpacket(dev
, ss
->irqpipe
);
1402 dev
->irq_handle
= usb_stor_irq
;
1405 /* Set the maximum transfer size per host controller setting */
1406 usb_stor_set_max_xfer_blk(dev
, ss
);
1408 dev
->privptr
= (void *)ss
;
1412 int usb_stor_get_info(struct usb_device
*dev
, struct us_data
*ss
,
1413 struct blk_desc
*dev_desc
)
1415 unsigned char perq
, modi
;
1416 ALLOC_CACHE_ALIGN_BUFFER(u32
, cap
, 2);
1417 ALLOC_CACHE_ALIGN_BUFFER(u8
, usb_stor_buf
, 36);
1418 u32 capacity
, blksz
;
1419 struct scsi_cmd
*pccb
= &usb_ccb
;
1421 pccb
->pdata
= usb_stor_buf
;
1423 dev_desc
->target
= dev
->devnum
;
1424 pccb
->lun
= dev_desc
->lun
;
1425 debug(" address %d\n", dev_desc
->target
);
1427 if (usb_inquiry(pccb
, ss
)) {
1428 debug("%s: usb_inquiry() failed\n", __func__
);
1432 perq
= usb_stor_buf
[0];
1433 modi
= usb_stor_buf
[1];
1436 * Skip unknown devices (0x1f) and enclosure service devices (0x0d),
1437 * they would not respond to test_unit_ready .
1439 if (((perq
& 0x1f) == 0x1f) || ((perq
& 0x1f) == 0x0d)) {
1440 debug("%s: unknown/unsupported device\n", __func__
);
1443 if ((modi
&0x80) == 0x80) {
1444 /* drive is removable */
1445 dev_desc
->removable
= 1;
1447 memcpy(dev_desc
->vendor
, (const void *)&usb_stor_buf
[8], 8);
1448 memcpy(dev_desc
->product
, (const void *)&usb_stor_buf
[16], 16);
1449 memcpy(dev_desc
->revision
, (const void *)&usb_stor_buf
[32], 4);
1450 dev_desc
->vendor
[8] = 0;
1451 dev_desc
->product
[16] = 0;
1452 dev_desc
->revision
[4] = 0;
1453 #ifdef CONFIG_USB_BIN_FIXUP
1454 usb_bin_fixup(dev
->descriptor
, (uchar
*)dev_desc
->vendor
,
1455 (uchar
*)dev_desc
->product
);
1456 #endif /* CONFIG_USB_BIN_FIXUP */
1457 debug("ISO Vers %X, Response Data %X\n", usb_stor_buf
[2],
1459 if (usb_test_unit_ready(pccb
, ss
)) {
1460 printf("Device NOT ready\n"
1461 " Request Sense returned %02X %02X %02X\n",
1462 pccb
->sense_buf
[2], pccb
->sense_buf
[12],
1463 pccb
->sense_buf
[13]);
1464 if (dev_desc
->removable
== 1)
1465 dev_desc
->type
= perq
;
1468 pccb
->pdata
= (unsigned char *)cap
;
1469 memset(pccb
->pdata
, 0, 8);
1470 if (usb_read_capacity(pccb
, ss
) != 0) {
1471 printf("READ_CAP ERROR\n");
1475 ss
->flags
&= ~USB_READY
;
1476 debug("Read Capacity returns: 0x%08x, 0x%08x\n", cap
[0], cap
[1]);
1478 if (cap
[0] > (0x200000 * 10)) /* greater than 10 GByte */
1481 cap
[0] = cpu_to_be32(cap
[0]);
1482 cap
[1] = cpu_to_be32(cap
[1]);
1485 capacity
= be32_to_cpu(cap
[0]) + 1;
1486 blksz
= be32_to_cpu(cap
[1]);
1488 debug("Capacity = 0x%08x, blocksz = 0x%08x\n", capacity
, blksz
);
1489 dev_desc
->lba
= capacity
;
1490 dev_desc
->blksz
= blksz
;
1491 dev_desc
->log2blksz
= LOG2(dev_desc
->blksz
);
1492 dev_desc
->type
= perq
;
1493 debug(" address %d\n", dev_desc
->target
);
1498 #if CONFIG_IS_ENABLED(DM_USB)
1500 static int usb_mass_storage_probe(struct udevice
*dev
)
1502 struct usb_device
*udev
= dev_get_parent_priv(dev
);
1505 usb_disable_asynch(1); /* asynch transfer not allowed */
1506 ret
= usb_stor_probe_device(udev
);
1507 usb_disable_asynch(0); /* asynch transfer allowed */
1512 static const struct udevice_id usb_mass_storage_ids
[] = {
1513 { .compatible
= "usb-mass-storage" },
1517 U_BOOT_DRIVER(usb_mass_storage
) = {
1518 .name
= "usb_mass_storage",
1519 .id
= UCLASS_MASS_STORAGE
,
1520 .of_match
= usb_mass_storage_ids
,
1521 .probe
= usb_mass_storage_probe
,
1522 #if CONFIG_IS_ENABLED(BLK)
1523 .platdata_auto_alloc_size
= sizeof(struct us_data
),
1527 UCLASS_DRIVER(usb_mass_storage
) = {
1528 .id
= UCLASS_MASS_STORAGE
,
1529 .name
= "usb_mass_storage",
1532 static const struct usb_device_id mass_storage_id_table
[] = {
1534 .match_flags
= USB_DEVICE_ID_MATCH_INT_CLASS
,
1535 .bInterfaceClass
= USB_CLASS_MASS_STORAGE
1537 { } /* Terminating entry */
1540 U_BOOT_USB_DEVICE(usb_mass_storage
, mass_storage_id_table
);
1543 #if CONFIG_IS_ENABLED(BLK)
1544 static const struct blk_ops usb_storage_ops
= {
1545 .read
= usb_stor_read
,
1546 .write
= usb_stor_write
,
1549 U_BOOT_DRIVER(usb_storage_blk
) = {
1550 .name
= "usb_storage_blk",
1552 .ops
= &usb_storage_ops
,
1555 U_BOOT_LEGACY_BLK(usb
) = {
1556 .if_typename
= "usb",
1557 .if_type
= IF_TYPE_USB
,
1558 .max_devs
= USB_MAX_STOR_DEV
,
1559 .desc
= usb_dev_desc
,