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Merge tag 'xilinx-for-v2022.01-rc1' of https://source.denx.de/u-boot/custodians/u...
[thirdparty/u-boot.git] / common / usb_storage.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Most of this source has been derived from the Linux USB
4 * project:
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.
9 *
10 *
11 * Adapted for U-Boot:
12 * (C) Copyright 2001 Denis Peter, MPL AG Switzerland
13 * Driver model conversion:
14 * (C) Copyright 2015 Google, Inc
15 *
16 * For BBB support (C) Copyright 2003
17 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
18 *
19 * BBB support based on /sys/dev/usb/umass.c from
20 * FreeBSD.
21 */
22
23 /* Note:
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.
27 */
28 /*
29 * New Note:
30 * Support for USB Mass Storage Devices (BBB) has been added. It has
31 * only been tested with USB memory sticks.
32 */
33
34
35 #include <common.h>
36 #include <blk.h>
37 #include <command.h>
38 #include <dm.h>
39 #include <errno.h>
40 #include <log.h>
41 #include <mapmem.h>
42 #include <memalign.h>
43 #include <asm/byteorder.h>
44 #include <asm/cache.h>
45 #include <asm/processor.h>
46 #include <dm/device-internal.h>
47 #include <dm/lists.h>
48 #include <linux/delay.h>
49
50 #include <part.h>
51 #include <usb.h>
52
53 #undef BBB_COMDAT_TRACE
54 #undef BBB_XPORT_TRACE
55
56 #include <scsi.h>
57 /* direction table -- this indicates the direction of the data
58 * transfer for each command code -- a 1 indicates input
59 */
60 static const unsigned char us_direction[256/8] = {
61 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
62 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
63 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
64 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
65 };
66 #define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
67
68 static struct scsi_cmd usb_ccb __aligned(ARCH_DMA_MINALIGN);
69 static __u32 CBWTag;
70
71 static int usb_max_devs; /* number of highest available usb device */
72
73 #if !CONFIG_IS_ENABLED(BLK)
74 static struct blk_desc usb_dev_desc[USB_MAX_STOR_DEV];
75 #endif
76
77 struct us_data;
78 typedef int (*trans_cmnd)(struct scsi_cmd *cb, struct us_data *data);
79 typedef int (*trans_reset)(struct us_data *data);
80
81 struct us_data {
82 struct usb_device *pusb_dev; /* this usb_device */
83
84 unsigned int flags; /* from filter initially */
85 # define USB_READY (1 << 0)
86 unsigned char ifnum; /* interface number */
87 unsigned char ep_in; /* in endpoint */
88 unsigned char ep_out; /* out ....... */
89 unsigned char ep_int; /* interrupt . */
90 unsigned char subclass; /* as in overview */
91 unsigned char protocol; /* .............. */
92 unsigned char attention_done; /* force attn on first cmd */
93 unsigned short ip_data; /* interrupt data */
94 int action; /* what to do */
95 int ip_wanted; /* needed */
96 int *irq_handle; /* for USB int requests */
97 unsigned int irqpipe; /* pipe for release_irq */
98 unsigned char irqmaxp; /* max packed for irq Pipe */
99 unsigned char irqinterval; /* Intervall for IRQ Pipe */
100 struct scsi_cmd *srb; /* current srb */
101 trans_reset transport_reset; /* reset routine */
102 trans_cmnd transport; /* transport routine */
103 unsigned short max_xfer_blk; /* maximum transfer blocks */
104 };
105
106 #if !CONFIG_IS_ENABLED(BLK)
107 static struct us_data usb_stor[USB_MAX_STOR_DEV];
108 #endif
109
110 #define USB_STOR_TRANSPORT_GOOD 0
111 #define USB_STOR_TRANSPORT_FAILED -1
112 #define USB_STOR_TRANSPORT_ERROR -2
113
114 int usb_stor_get_info(struct usb_device *dev, struct us_data *us,
115 struct blk_desc *dev_desc);
116 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
117 struct us_data *ss);
118 #if CONFIG_IS_ENABLED(BLK)
119 static unsigned long usb_stor_read(struct udevice *dev, lbaint_t blknr,
120 lbaint_t blkcnt, void *buffer);
121 static unsigned long usb_stor_write(struct udevice *dev, lbaint_t blknr,
122 lbaint_t blkcnt, const void *buffer);
123 #else
124 static unsigned long usb_stor_read(struct blk_desc *block_dev, lbaint_t blknr,
125 lbaint_t blkcnt, void *buffer);
126 static unsigned long usb_stor_write(struct blk_desc *block_dev, lbaint_t blknr,
127 lbaint_t blkcnt, const void *buffer);
128 #endif
129 void uhci_show_temp_int_td(void);
130
131 static void usb_show_progress(void)
132 {
133 debug(".");
134 }
135
136 /*******************************************************************************
137 * show info on storage devices; 'usb start/init' must be invoked earlier
138 * as we only retrieve structures populated during devices initialization
139 */
140 int usb_stor_info(void)
141 {
142 int count = 0;
143 #if CONFIG_IS_ENABLED(BLK)
144 struct udevice *dev;
145
146 for (blk_first_device(IF_TYPE_USB, &dev);
147 dev;
148 blk_next_device(&dev)) {
149 struct blk_desc *desc = dev_get_uclass_plat(dev);
150
151 printf(" Device %d: ", desc->devnum);
152 dev_print(desc);
153 count++;
154 }
155 #else
156 int i;
157
158 if (usb_max_devs > 0) {
159 for (i = 0; i < usb_max_devs; i++) {
160 printf(" Device %d: ", i);
161 dev_print(&usb_dev_desc[i]);
162 }
163 return 0;
164 }
165 #endif
166 if (!count) {
167 printf("No storage devices, perhaps not 'usb start'ed..?\n");
168 return 1;
169 }
170
171 return 0;
172 }
173
174 static unsigned int usb_get_max_lun(struct us_data *us)
175 {
176 int len;
177 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, result, 1);
178 len = usb_control_msg(us->pusb_dev,
179 usb_rcvctrlpipe(us->pusb_dev, 0),
180 US_BBB_GET_MAX_LUN,
181 USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
182 0, us->ifnum,
183 result, sizeof(char),
184 USB_CNTL_TIMEOUT * 5);
185 debug("Get Max LUN -> len = %i, result = %i\n", len, (int) *result);
186 return (len > 0) ? *result : 0;
187 }
188
189 static int usb_stor_probe_device(struct usb_device *udev)
190 {
191 int lun, max_lun;
192
193 #if CONFIG_IS_ENABLED(BLK)
194 struct us_data *data;
195 int ret;
196 #else
197 int start;
198
199 if (udev == NULL)
200 return -ENOENT; /* no more devices available */
201 #endif
202
203 debug("\n\nProbing for storage\n");
204 #if CONFIG_IS_ENABLED(BLK)
205 /*
206 * We store the us_data in the mass storage device's plat. It
207 * is shared by all LUNs (block devices) attached to this mass storage
208 * device.
209 */
210 data = dev_get_plat(udev->dev);
211 if (!usb_storage_probe(udev, 0, data))
212 return 0;
213 max_lun = usb_get_max_lun(data);
214 for (lun = 0; lun <= max_lun; lun++) {
215 struct blk_desc *blkdev;
216 struct udevice *dev;
217 char str[10];
218
219 snprintf(str, sizeof(str), "lun%d", lun);
220 ret = blk_create_devicef(udev->dev, "usb_storage_blk", str,
221 IF_TYPE_USB, usb_max_devs, 512, 0,
222 &dev);
223 if (ret) {
224 debug("Cannot bind driver\n");
225 return ret;
226 }
227
228 blkdev = dev_get_uclass_plat(dev);
229 blkdev->target = 0xff;
230 blkdev->lun = lun;
231
232 ret = usb_stor_get_info(udev, data, blkdev);
233 if (ret == 1) {
234 usb_max_devs++;
235 debug("%s: Found device %p\n", __func__, udev);
236 } else {
237 debug("usb_stor_get_info: Invalid device\n");
238 ret = device_unbind(dev);
239 if (ret)
240 return ret;
241 }
242 }
243 #else
244 /* We don't have space to even probe if we hit the maximum */
245 if (usb_max_devs == USB_MAX_STOR_DEV) {
246 printf("max USB Storage Device reached: %d stopping\n",
247 usb_max_devs);
248 return -ENOSPC;
249 }
250
251 if (!usb_storage_probe(udev, 0, &usb_stor[usb_max_devs]))
252 return 0;
253
254 /*
255 * OK, it's a storage device. Iterate over its LUNs and populate
256 * usb_dev_desc'
257 */
258 start = usb_max_devs;
259
260 max_lun = usb_get_max_lun(&usb_stor[usb_max_devs]);
261 for (lun = 0; lun <= max_lun && usb_max_devs < USB_MAX_STOR_DEV;
262 lun++) {
263 struct blk_desc *blkdev;
264
265 blkdev = &usb_dev_desc[usb_max_devs];
266 memset(blkdev, '\0', sizeof(struct blk_desc));
267 blkdev->if_type = IF_TYPE_USB;
268 blkdev->devnum = usb_max_devs;
269 blkdev->part_type = PART_TYPE_UNKNOWN;
270 blkdev->target = 0xff;
271 blkdev->type = DEV_TYPE_UNKNOWN;
272 blkdev->block_read = usb_stor_read;
273 blkdev->block_write = usb_stor_write;
274 blkdev->lun = lun;
275 blkdev->priv = udev;
276
277 if (usb_stor_get_info(udev, &usb_stor[start],
278 &usb_dev_desc[usb_max_devs]) == 1) {
279 debug("partype: %d\n", blkdev->part_type);
280 part_init(blkdev);
281 debug("partype: %d\n", blkdev->part_type);
282 usb_max_devs++;
283 debug("%s: Found device %p\n", __func__, udev);
284 }
285 }
286 #endif
287
288 return 0;
289 }
290
291 void usb_stor_reset(void)
292 {
293 usb_max_devs = 0;
294 }
295
296 /*******************************************************************************
297 * scan the usb and reports device info
298 * to the user if mode = 1
299 * returns current device or -1 if no
300 */
301 int usb_stor_scan(int mode)
302 {
303 if (mode == 1)
304 printf(" scanning usb for storage devices... ");
305
306 #if !CONFIG_IS_ENABLED(DM_USB)
307 unsigned char i;
308
309 usb_disable_asynch(1); /* asynch transfer not allowed */
310
311 usb_stor_reset();
312 for (i = 0; i < USB_MAX_DEVICE; i++) {
313 struct usb_device *dev;
314
315 dev = usb_get_dev_index(i); /* get device */
316 debug("i=%d\n", i);
317 if (usb_stor_probe_device(dev))
318 break;
319 } /* for */
320
321 usb_disable_asynch(0); /* asynch transfer allowed */
322 #endif
323 printf("%d Storage Device(s) found\n", usb_max_devs);
324 if (usb_max_devs > 0)
325 return 0;
326 return -1;
327 }
328
329 static int usb_stor_irq(struct usb_device *dev)
330 {
331 struct us_data *us;
332 us = (struct us_data *)dev->privptr;
333
334 if (us->ip_wanted)
335 us->ip_wanted = 0;
336 return 0;
337 }
338
339
340 #ifdef DEBUG
341
342 static void usb_show_srb(struct scsi_cmd *pccb)
343 {
344 int i;
345 printf("SRB: len %d datalen 0x%lX\n ", pccb->cmdlen, pccb->datalen);
346 for (i = 0; i < 12; i++)
347 printf("%02X ", pccb->cmd[i]);
348 printf("\n");
349 }
350
351 static void display_int_status(unsigned long tmp)
352 {
353 printf("Status: %s %s %s %s %s %s %s\n",
354 (tmp & USB_ST_ACTIVE) ? "Active" : "",
355 (tmp & USB_ST_STALLED) ? "Stalled" : "",
356 (tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "",
357 (tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "",
358 (tmp & USB_ST_NAK_REC) ? "NAKed" : "",
359 (tmp & USB_ST_CRC_ERR) ? "CRC Error" : "",
360 (tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : "");
361 }
362 #endif
363 /***********************************************************************
364 * Data transfer routines
365 ***********************************************************************/
366
367 static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length)
368 {
369 int max_size;
370 int this_xfer;
371 int result;
372 int partial;
373 int maxtry;
374 int stat;
375
376 /* determine the maximum packet size for these transfers */
377 max_size = usb_maxpacket(us->pusb_dev, pipe) * 16;
378
379 /* while we have data left to transfer */
380 while (length) {
381
382 /* calculate how long this will be -- maximum or a remainder */
383 this_xfer = length > max_size ? max_size : length;
384 length -= this_xfer;
385
386 /* setup the retry counter */
387 maxtry = 10;
388
389 /* set up the transfer loop */
390 do {
391 /* transfer the data */
392 debug("Bulk xfer 0x%lx(%d) try #%d\n",
393 (ulong)map_to_sysmem(buf), this_xfer,
394 11 - maxtry);
395 result = usb_bulk_msg(us->pusb_dev, pipe, buf,
396 this_xfer, &partial,
397 USB_CNTL_TIMEOUT * 5);
398 debug("bulk_msg returned %d xferred %d/%d\n",
399 result, partial, this_xfer);
400 if (us->pusb_dev->status != 0) {
401 /* if we stall, we need to clear it before
402 * we go on
403 */
404 #ifdef DEBUG
405 display_int_status(us->pusb_dev->status);
406 #endif
407 if (us->pusb_dev->status & USB_ST_STALLED) {
408 debug("stalled ->clearing endpoint" \
409 "halt for pipe 0x%x\n", pipe);
410 stat = us->pusb_dev->status;
411 usb_clear_halt(us->pusb_dev, pipe);
412 us->pusb_dev->status = stat;
413 if (this_xfer == partial) {
414 debug("bulk transferred" \
415 "with error %lX," \
416 " but data ok\n",
417 us->pusb_dev->status);
418 return 0;
419 }
420 else
421 return result;
422 }
423 if (us->pusb_dev->status & USB_ST_NAK_REC) {
424 debug("Device NAKed bulk_msg\n");
425 return result;
426 }
427 debug("bulk transferred with error");
428 if (this_xfer == partial) {
429 debug(" %ld, but data ok\n",
430 us->pusb_dev->status);
431 return 0;
432 }
433 /* if our try counter reaches 0, bail out */
434 debug(" %ld, data %d\n",
435 us->pusb_dev->status, partial);
436 if (!maxtry--)
437 return result;
438 }
439 /* update to show what data was transferred */
440 this_xfer -= partial;
441 buf += partial;
442 /* continue until this transfer is done */
443 } while (this_xfer);
444 }
445
446 /* if we get here, we're done and successful */
447 return 0;
448 }
449
450 static int usb_stor_BBB_reset(struct us_data *us)
451 {
452 int result;
453 unsigned int pipe;
454
455 /*
456 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
457 *
458 * For Reset Recovery the host shall issue in the following order:
459 * a) a Bulk-Only Mass Storage Reset
460 * b) a Clear Feature HALT to the Bulk-In endpoint
461 * c) a Clear Feature HALT to the Bulk-Out endpoint
462 *
463 * This is done in 3 steps.
464 *
465 * If the reset doesn't succeed, the device should be port reset.
466 *
467 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
468 */
469 debug("BBB_reset\n");
470 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
471 US_BBB_RESET,
472 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
473 0, us->ifnum, NULL, 0, USB_CNTL_TIMEOUT * 5);
474
475 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) {
476 debug("RESET:stall\n");
477 return -1;
478 }
479
480 /* long wait for reset */
481 mdelay(150);
482 debug("BBB_reset result %d: status %lX reset\n",
483 result, us->pusb_dev->status);
484 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
485 result = usb_clear_halt(us->pusb_dev, pipe);
486 /* long wait for reset */
487 mdelay(150);
488 debug("BBB_reset result %d: status %lX clearing IN endpoint\n",
489 result, us->pusb_dev->status);
490 /* long wait for reset */
491 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
492 result = usb_clear_halt(us->pusb_dev, pipe);
493 mdelay(150);
494 debug("BBB_reset result %d: status %lX clearing OUT endpoint\n",
495 result, us->pusb_dev->status);
496 debug("BBB_reset done\n");
497 return 0;
498 }
499
500 /* FIXME: this reset function doesn't really reset the port, and it
501 * should. Actually it should probably do what it's doing here, and
502 * reset the port physically
503 */
504 static int usb_stor_CB_reset(struct us_data *us)
505 {
506 unsigned char cmd[12];
507 int result;
508
509 debug("CB_reset\n");
510 memset(cmd, 0xff, sizeof(cmd));
511 cmd[0] = SCSI_SEND_DIAG;
512 cmd[1] = 4;
513 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
514 US_CBI_ADSC,
515 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
516 0, us->ifnum, cmd, sizeof(cmd),
517 USB_CNTL_TIMEOUT * 5);
518
519 /* long wait for reset */
520 mdelay(1500);
521 debug("CB_reset result %d: status %lX clearing endpoint halt\n",
522 result, us->pusb_dev->status);
523 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in));
524 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out));
525
526 debug("CB_reset done\n");
527 return 0;
528 }
529
530 /*
531 * Set up the command for a BBB device. Note that the actual SCSI
532 * command is copied into cbw.CBWCDB.
533 */
534 static int usb_stor_BBB_comdat(struct scsi_cmd *srb, struct us_data *us)
535 {
536 int result;
537 int actlen;
538 int dir_in;
539 unsigned int pipe;
540 ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_cbw, cbw, 1);
541
542 dir_in = US_DIRECTION(srb->cmd[0]);
543
544 #ifdef BBB_COMDAT_TRACE
545 printf("dir %d lun %d cmdlen %d cmd %p datalen %lu pdata %p\n",
546 dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen,
547 srb->pdata);
548 if (srb->cmdlen) {
549 for (result = 0; result < srb->cmdlen; result++)
550 printf("cmd[%d] %#x ", result, srb->cmd[result]);
551 printf("\n");
552 }
553 #endif
554 /* sanity checks */
555 if (!(srb->cmdlen <= CBWCDBLENGTH)) {
556 debug("usb_stor_BBB_comdat:cmdlen too large\n");
557 return -1;
558 }
559
560 /* always OUT to the ep */
561 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
562
563 cbw->dCBWSignature = cpu_to_le32(CBWSIGNATURE);
564 cbw->dCBWTag = cpu_to_le32(CBWTag++);
565 cbw->dCBWDataTransferLength = cpu_to_le32(srb->datalen);
566 cbw->bCBWFlags = (dir_in ? CBWFLAGS_IN : CBWFLAGS_OUT);
567 cbw->bCBWLUN = srb->lun;
568 cbw->bCDBLength = srb->cmdlen;
569 /* copy the command data into the CBW command data buffer */
570 /* DST SRC LEN!!! */
571
572 memcpy(cbw->CBWCDB, srb->cmd, srb->cmdlen);
573 result = usb_bulk_msg(us->pusb_dev, pipe, cbw, UMASS_BBB_CBW_SIZE,
574 &actlen, USB_CNTL_TIMEOUT * 5);
575 if (result < 0)
576 debug("usb_stor_BBB_comdat:usb_bulk_msg error\n");
577 return result;
578 }
579
580 /* FIXME: we also need a CBI_command which sets up the completion
581 * interrupt, and waits for it
582 */
583 static int usb_stor_CB_comdat(struct scsi_cmd *srb, struct us_data *us)
584 {
585 int result = 0;
586 int dir_in, retry;
587 unsigned int pipe;
588 unsigned long status;
589
590 retry = 5;
591 dir_in = US_DIRECTION(srb->cmd[0]);
592
593 if (dir_in)
594 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
595 else
596 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
597
598 while (retry--) {
599 debug("CBI gets a command: Try %d\n", 5 - retry);
600 #ifdef DEBUG
601 usb_show_srb(srb);
602 #endif
603 /* let's send the command via the control pipe */
604 result = usb_control_msg(us->pusb_dev,
605 usb_sndctrlpipe(us->pusb_dev , 0),
606 US_CBI_ADSC,
607 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
608 0, us->ifnum,
609 srb->cmd, srb->cmdlen,
610 USB_CNTL_TIMEOUT * 5);
611 debug("CB_transport: control msg returned %d, status %lX\n",
612 result, us->pusb_dev->status);
613 /* check the return code for the command */
614 if (result < 0) {
615 if (us->pusb_dev->status & USB_ST_STALLED) {
616 status = us->pusb_dev->status;
617 debug(" stall during command found," \
618 " clear pipe\n");
619 usb_clear_halt(us->pusb_dev,
620 usb_sndctrlpipe(us->pusb_dev, 0));
621 us->pusb_dev->status = status;
622 }
623 debug(" error during command %02X" \
624 " Stat = %lX\n", srb->cmd[0],
625 us->pusb_dev->status);
626 return result;
627 }
628 /* transfer the data payload for this command, if one exists*/
629
630 debug("CB_transport: control msg returned %d," \
631 " direction is %s to go 0x%lx\n", result,
632 dir_in ? "IN" : "OUT", srb->datalen);
633 if (srb->datalen) {
634 result = us_one_transfer(us, pipe, (char *)srb->pdata,
635 srb->datalen);
636 debug("CBI attempted to transfer data," \
637 " result is %d status %lX, len %d\n",
638 result, us->pusb_dev->status,
639 us->pusb_dev->act_len);
640 if (!(us->pusb_dev->status & USB_ST_NAK_REC))
641 break;
642 } /* if (srb->datalen) */
643 else
644 break;
645 }
646 /* return result */
647
648 return result;
649 }
650
651
652 static int usb_stor_CBI_get_status(struct scsi_cmd *srb, struct us_data *us)
653 {
654 int timeout;
655
656 us->ip_wanted = 1;
657 usb_int_msg(us->pusb_dev, us->irqpipe,
658 (void *)&us->ip_data, us->irqmaxp, us->irqinterval, false);
659 timeout = 1000;
660 while (timeout--) {
661 if (us->ip_wanted == 0)
662 break;
663 mdelay(10);
664 }
665 if (us->ip_wanted) {
666 printf(" Did not get interrupt on CBI\n");
667 us->ip_wanted = 0;
668 return USB_STOR_TRANSPORT_ERROR;
669 }
670 debug("Got interrupt data 0x%x, transferred %d status 0x%lX\n",
671 us->ip_data, us->pusb_dev->irq_act_len,
672 us->pusb_dev->irq_status);
673 /* UFI gives us ASC and ASCQ, like a request sense */
674 if (us->subclass == US_SC_UFI) {
675 if (srb->cmd[0] == SCSI_REQ_SENSE ||
676 srb->cmd[0] == SCSI_INQUIRY)
677 return USB_STOR_TRANSPORT_GOOD; /* Good */
678 else if (us->ip_data)
679 return USB_STOR_TRANSPORT_FAILED;
680 else
681 return USB_STOR_TRANSPORT_GOOD;
682 }
683 /* otherwise, we interpret the data normally */
684 switch (us->ip_data) {
685 case 0x0001:
686 return USB_STOR_TRANSPORT_GOOD;
687 case 0x0002:
688 return USB_STOR_TRANSPORT_FAILED;
689 default:
690 return USB_STOR_TRANSPORT_ERROR;
691 } /* switch */
692 return USB_STOR_TRANSPORT_ERROR;
693 }
694
695 #define USB_TRANSPORT_UNKNOWN_RETRY 5
696 #define USB_TRANSPORT_NOT_READY_RETRY 10
697
698 /* clear a stall on an endpoint - special for BBB devices */
699 static int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt)
700 {
701 /* ENDPOINT_HALT = 0, so set value to 0 */
702 return usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
703 USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0,
704 endpt, NULL, 0, USB_CNTL_TIMEOUT * 5);
705 }
706
707 static int usb_stor_BBB_transport(struct scsi_cmd *srb, struct us_data *us)
708 {
709 int result, retry;
710 int dir_in;
711 int actlen, data_actlen;
712 unsigned int pipe, pipein, pipeout;
713 ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_csw, csw, 1);
714 #ifdef BBB_XPORT_TRACE
715 unsigned char *ptr;
716 int index;
717 #endif
718
719 dir_in = US_DIRECTION(srb->cmd[0]);
720
721 /* COMMAND phase */
722 debug("COMMAND phase\n");
723 result = usb_stor_BBB_comdat(srb, us);
724 if (result < 0) {
725 debug("failed to send CBW status %ld\n",
726 us->pusb_dev->status);
727 usb_stor_BBB_reset(us);
728 return USB_STOR_TRANSPORT_FAILED;
729 }
730 if (!(us->flags & USB_READY))
731 mdelay(5);
732 pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
733 pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
734 /* DATA phase + error handling */
735 data_actlen = 0;
736 /* no data, go immediately to the STATUS phase */
737 if (srb->datalen == 0)
738 goto st;
739 debug("DATA phase\n");
740 if (dir_in)
741 pipe = pipein;
742 else
743 pipe = pipeout;
744
745 result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen,
746 &data_actlen, USB_CNTL_TIMEOUT * 5);
747 /* special handling of STALL in DATA phase */
748 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) {
749 debug("DATA:stall\n");
750 /* clear the STALL on the endpoint */
751 result = usb_stor_BBB_clear_endpt_stall(us,
752 dir_in ? us->ep_in : us->ep_out);
753 if (result >= 0)
754 /* continue on to STATUS phase */
755 goto st;
756 }
757 if (result < 0) {
758 debug("usb_bulk_msg error status %ld\n",
759 us->pusb_dev->status);
760 usb_stor_BBB_reset(us);
761 return USB_STOR_TRANSPORT_FAILED;
762 }
763 #ifdef BBB_XPORT_TRACE
764 for (index = 0; index < data_actlen; index++)
765 printf("pdata[%d] %#x ", index, srb->pdata[index]);
766 printf("\n");
767 #endif
768 /* STATUS phase + error handling */
769 st:
770 retry = 0;
771 again:
772 debug("STATUS phase\n");
773 result = usb_bulk_msg(us->pusb_dev, pipein, csw, UMASS_BBB_CSW_SIZE,
774 &actlen, USB_CNTL_TIMEOUT*5);
775
776 /* special handling of STALL in STATUS phase */
777 if ((result < 0) && (retry < 1) &&
778 (us->pusb_dev->status & USB_ST_STALLED)) {
779 debug("STATUS:stall\n");
780 /* clear the STALL on the endpoint */
781 result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in);
782 if (result >= 0 && (retry++ < 1))
783 /* do a retry */
784 goto again;
785 }
786 if (result < 0) {
787 debug("usb_bulk_msg error status %ld\n",
788 us->pusb_dev->status);
789 usb_stor_BBB_reset(us);
790 return USB_STOR_TRANSPORT_FAILED;
791 }
792 #ifdef BBB_XPORT_TRACE
793 ptr = (unsigned char *)csw;
794 for (index = 0; index < UMASS_BBB_CSW_SIZE; index++)
795 printf("ptr[%d] %#x ", index, ptr[index]);
796 printf("\n");
797 #endif
798 /* misuse pipe to get the residue */
799 pipe = le32_to_cpu(csw->dCSWDataResidue);
800 if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0)
801 pipe = srb->datalen - data_actlen;
802 if (CSWSIGNATURE != le32_to_cpu(csw->dCSWSignature)) {
803 debug("!CSWSIGNATURE\n");
804 usb_stor_BBB_reset(us);
805 return USB_STOR_TRANSPORT_FAILED;
806 } else if ((CBWTag - 1) != le32_to_cpu(csw->dCSWTag)) {
807 debug("!Tag\n");
808 usb_stor_BBB_reset(us);
809 return USB_STOR_TRANSPORT_FAILED;
810 } else if (csw->bCSWStatus > CSWSTATUS_PHASE) {
811 debug(">PHASE\n");
812 usb_stor_BBB_reset(us);
813 return USB_STOR_TRANSPORT_FAILED;
814 } else if (csw->bCSWStatus == CSWSTATUS_PHASE) {
815 debug("=PHASE\n");
816 usb_stor_BBB_reset(us);
817 return USB_STOR_TRANSPORT_FAILED;
818 } else if (data_actlen > srb->datalen) {
819 debug("transferred %dB instead of %ldB\n",
820 data_actlen, srb->datalen);
821 return USB_STOR_TRANSPORT_FAILED;
822 } else if (csw->bCSWStatus == CSWSTATUS_FAILED) {
823 debug("FAILED\n");
824 return USB_STOR_TRANSPORT_FAILED;
825 }
826
827 return result;
828 }
829
830 static int usb_stor_CB_transport(struct scsi_cmd *srb, struct us_data *us)
831 {
832 int result, status;
833 struct scsi_cmd *psrb;
834 struct scsi_cmd reqsrb;
835 int retry, notready;
836
837 psrb = &reqsrb;
838 status = USB_STOR_TRANSPORT_GOOD;
839 retry = 0;
840 notready = 0;
841 /* issue the command */
842 do_retry:
843 result = usb_stor_CB_comdat(srb, us);
844 debug("command / Data returned %d, status %lX\n",
845 result, us->pusb_dev->status);
846 /* if this is an CBI Protocol, get IRQ */
847 if (us->protocol == US_PR_CBI) {
848 status = usb_stor_CBI_get_status(srb, us);
849 /* if the status is error, report it */
850 if (status == USB_STOR_TRANSPORT_ERROR) {
851 debug(" USB CBI Command Error\n");
852 return status;
853 }
854 srb->sense_buf[12] = (unsigned char)(us->ip_data >> 8);
855 srb->sense_buf[13] = (unsigned char)(us->ip_data & 0xff);
856 if (!us->ip_data) {
857 /* if the status is good, report it */
858 if (status == USB_STOR_TRANSPORT_GOOD) {
859 debug(" USB CBI Command Good\n");
860 return status;
861 }
862 }
863 }
864 /* do we have to issue an auto request? */
865 /* HERE we have to check the result */
866 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) {
867 debug("ERROR %lX\n", us->pusb_dev->status);
868 us->transport_reset(us);
869 return USB_STOR_TRANSPORT_ERROR;
870 }
871 if ((us->protocol == US_PR_CBI) &&
872 ((srb->cmd[0] == SCSI_REQ_SENSE) ||
873 (srb->cmd[0] == SCSI_INQUIRY))) {
874 /* do not issue an autorequest after request sense */
875 debug("No auto request and good\n");
876 return USB_STOR_TRANSPORT_GOOD;
877 }
878 /* issue an request_sense */
879 memset(&psrb->cmd[0], 0, 12);
880 psrb->cmd[0] = SCSI_REQ_SENSE;
881 psrb->cmd[1] = srb->lun << 5;
882 psrb->cmd[4] = 18;
883 psrb->datalen = 18;
884 psrb->pdata = &srb->sense_buf[0];
885 psrb->cmdlen = 12;
886 /* issue the command */
887 result = usb_stor_CB_comdat(psrb, us);
888 debug("auto request returned %d\n", result);
889 /* if this is an CBI Protocol, get IRQ */
890 if (us->protocol == US_PR_CBI)
891 status = usb_stor_CBI_get_status(psrb, us);
892
893 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) {
894 debug(" AUTO REQUEST ERROR %ld\n",
895 us->pusb_dev->status);
896 return USB_STOR_TRANSPORT_ERROR;
897 }
898 debug("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
899 srb->sense_buf[0], srb->sense_buf[2],
900 srb->sense_buf[12], srb->sense_buf[13]);
901 /* Check the auto request result */
902 if ((srb->sense_buf[2] == 0) &&
903 (srb->sense_buf[12] == 0) &&
904 (srb->sense_buf[13] == 0)) {
905 /* ok, no sense */
906 return USB_STOR_TRANSPORT_GOOD;
907 }
908
909 /* Check the auto request result */
910 switch (srb->sense_buf[2]) {
911 case 0x01:
912 /* Recovered Error */
913 return USB_STOR_TRANSPORT_GOOD;
914 break;
915 case 0x02:
916 /* Not Ready */
917 if (notready++ > USB_TRANSPORT_NOT_READY_RETRY) {
918 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
919 " 0x%02X (NOT READY)\n", srb->cmd[0],
920 srb->sense_buf[0], srb->sense_buf[2],
921 srb->sense_buf[12], srb->sense_buf[13]);
922 return USB_STOR_TRANSPORT_FAILED;
923 } else {
924 mdelay(100);
925 goto do_retry;
926 }
927 break;
928 default:
929 if (retry++ > USB_TRANSPORT_UNKNOWN_RETRY) {
930 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
931 " 0x%02X\n", srb->cmd[0], srb->sense_buf[0],
932 srb->sense_buf[2], srb->sense_buf[12],
933 srb->sense_buf[13]);
934 return USB_STOR_TRANSPORT_FAILED;
935 } else
936 goto do_retry;
937 break;
938 }
939 return USB_STOR_TRANSPORT_FAILED;
940 }
941
942 static void usb_stor_set_max_xfer_blk(struct usb_device *udev,
943 struct us_data *us)
944 {
945 /*
946 * Limit the total size of a transfer to 120 KB.
947 *
948 * Some devices are known to choke with anything larger. It seems like
949 * the problem stems from the fact that original IDE controllers had
950 * only an 8-bit register to hold the number of sectors in one transfer
951 * and even those couldn't handle a full 256 sectors.
952 *
953 * Because we want to make sure we interoperate with as many devices as
954 * possible, we will maintain a 240 sector transfer size limit for USB
955 * Mass Storage devices.
956 *
957 * Tests show that other operating have similar limits with Microsoft
958 * Windows 7 limiting transfers to 128 sectors for both USB2 and USB3
959 * and Apple Mac OS X 10.11 limiting transfers to 256 sectors for USB2
960 * and 2048 for USB3 devices.
961 */
962 unsigned short blk = 240;
963
964 #if CONFIG_IS_ENABLED(DM_USB)
965 size_t size;
966 int ret;
967
968 ret = usb_get_max_xfer_size(udev, (size_t *)&size);
969 if ((ret >= 0) && (size < blk * 512))
970 blk = size / 512;
971 #endif
972
973 us->max_xfer_blk = blk;
974 }
975
976 static int usb_inquiry(struct scsi_cmd *srb, struct us_data *ss)
977 {
978 int retry, i;
979 retry = 5;
980 do {
981 memset(&srb->cmd[0], 0, 12);
982 srb->cmd[0] = SCSI_INQUIRY;
983 srb->cmd[1] = srb->lun << 5;
984 srb->cmd[4] = 36;
985 srb->datalen = 36;
986 srb->cmdlen = 12;
987 i = ss->transport(srb, ss);
988 debug("inquiry returns %d\n", i);
989 if (i == 0)
990 break;
991 } while (--retry);
992
993 if (!retry) {
994 printf("error in inquiry\n");
995 return -1;
996 }
997 return 0;
998 }
999
1000 static int usb_request_sense(struct scsi_cmd *srb, struct us_data *ss)
1001 {
1002 char *ptr;
1003
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;
1008 srb->cmd[4] = 18;
1009 srb->datalen = 18;
1010 srb->pdata = &srb->sense_buf[0];
1011 srb->cmdlen = 12;
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;
1017 return 0;
1018 }
1019
1020 static int usb_test_unit_ready(struct scsi_cmd *srb, struct us_data *ss)
1021 {
1022 int retries = 10;
1023
1024 do {
1025 memset(&srb->cmd[0], 0, 12);
1026 srb->cmd[0] = SCSI_TST_U_RDY;
1027 srb->cmd[1] = srb->lun << 5;
1028 srb->datalen = 0;
1029 srb->cmdlen = 12;
1030 if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) {
1031 ss->flags |= USB_READY;
1032 return 0;
1033 }
1034 usb_request_sense(srb, ss);
1035 /*
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.
1041 */
1042 if ((srb->sense_buf[2] == 0x02) &&
1043 (srb->sense_buf[12] == 0x3a))
1044 return -1;
1045 mdelay(100);
1046 } while (retries--);
1047
1048 return -1;
1049 }
1050
1051 static int usb_read_capacity(struct scsi_cmd *srb, struct us_data *ss)
1052 {
1053 int retry;
1054 /* XXX retries */
1055 retry = 3;
1056 do {
1057 memset(&srb->cmd[0], 0, 12);
1058 srb->cmd[0] = SCSI_RD_CAPAC;
1059 srb->cmd[1] = srb->lun << 5;
1060 srb->datalen = 8;
1061 srb->cmdlen = 12;
1062 if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD)
1063 return 0;
1064 } while (retry--);
1065
1066 return -1;
1067 }
1068
1069 static int usb_read_10(struct scsi_cmd *srb, struct us_data *ss,
1070 unsigned long start, unsigned short blocks)
1071 {
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;
1081 srb->cmdlen = 12;
1082 debug("read10: start %lx blocks %x\n", start, blocks);
1083 return ss->transport(srb, ss);
1084 }
1085
1086 static int usb_write_10(struct scsi_cmd *srb, struct us_data *ss,
1087 unsigned long start, unsigned short blocks)
1088 {
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;
1098 srb->cmdlen = 12;
1099 debug("write10: start %lx blocks %x\n", start, blocks);
1100 return ss->transport(srb, ss);
1101 }
1102
1103
1104 #ifdef CONFIG_USB_BIN_FIXUP
1105 /*
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').
1110 *
1111 * Vendor and product length limits are taken from the definition of
1112 * struct blk_desc in include/part.h.
1113 */
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",
1122 max_product_len);
1123 }
1124 }
1125 #endif /* CONFIG_USB_BIN_FIXUP */
1126
1127 #if CONFIG_IS_ENABLED(BLK)
1128 static unsigned long usb_stor_read(struct udevice *dev, lbaint_t blknr,
1129 lbaint_t blkcnt, void *buffer)
1130 #else
1131 static unsigned long usb_stor_read(struct blk_desc *block_dev, lbaint_t blknr,
1132 lbaint_t blkcnt, void *buffer)
1133 #endif
1134 {
1135 lbaint_t start, blks;
1136 uintptr_t buf_addr;
1137 unsigned short smallblks;
1138 struct usb_device *udev;
1139 struct us_data *ss;
1140 int retry;
1141 struct scsi_cmd *srb = &usb_ccb;
1142 #if CONFIG_IS_ENABLED(BLK)
1143 struct blk_desc *block_dev;
1144 #endif
1145
1146 if (blkcnt == 0)
1147 return 0;
1148 /* Setup device */
1149 #if CONFIG_IS_ENABLED(BLK)
1150 block_dev = dev_get_uclass_plat(dev);
1151 udev = dev_get_parent_priv(dev_get_parent(dev));
1152 debug("\nusb_read: udev %d\n", block_dev->devnum);
1153 #else
1154 debug("\nusb_read: udev %d\n", block_dev->devnum);
1155 udev = usb_dev_desc[block_dev->devnum].priv;
1156 if (!udev) {
1157 debug("%s: No device\n", __func__);
1158 return 0;
1159 }
1160 #endif
1161 ss = (struct us_data *)udev->privptr;
1162
1163 usb_disable_asynch(1); /* asynch transfer not allowed */
1164 usb_lock_async(udev, 1);
1165 srb->lun = block_dev->lun;
1166 buf_addr = (uintptr_t)buffer;
1167 start = blknr;
1168 blks = blkcnt;
1169
1170 debug("\nusb_read: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
1171 block_dev->devnum, start, blks, buf_addr);
1172
1173 do {
1174 /* XXX need some comment here */
1175 retry = 2;
1176 srb->pdata = (unsigned char *)buf_addr;
1177 if (blks > ss->max_xfer_blk)
1178 smallblks = ss->max_xfer_blk;
1179 else
1180 smallblks = (unsigned short) blks;
1181 retry_it:
1182 if (smallblks == ss->max_xfer_blk)
1183 usb_show_progress();
1184 srb->datalen = block_dev->blksz * smallblks;
1185 srb->pdata = (unsigned char *)buf_addr;
1186 if (usb_read_10(srb, ss, start, smallblks)) {
1187 debug("Read ERROR\n");
1188 ss->flags &= ~USB_READY;
1189 usb_request_sense(srb, ss);
1190 if (retry--)
1191 goto retry_it;
1192 blkcnt -= blks;
1193 break;
1194 }
1195 start += smallblks;
1196 blks -= smallblks;
1197 buf_addr += srb->datalen;
1198 } while (blks != 0);
1199
1200 debug("usb_read: end startblk " LBAF ", blccnt %x buffer %lx\n",
1201 start, smallblks, buf_addr);
1202
1203 usb_lock_async(udev, 0);
1204 usb_disable_asynch(0); /* asynch transfer allowed */
1205 if (blkcnt >= ss->max_xfer_blk)
1206 debug("\n");
1207 return blkcnt;
1208 }
1209
1210 #if CONFIG_IS_ENABLED(BLK)
1211 static unsigned long usb_stor_write(struct udevice *dev, lbaint_t blknr,
1212 lbaint_t blkcnt, const void *buffer)
1213 #else
1214 static unsigned long usb_stor_write(struct blk_desc *block_dev, lbaint_t blknr,
1215 lbaint_t blkcnt, const void *buffer)
1216 #endif
1217 {
1218 lbaint_t start, blks;
1219 uintptr_t buf_addr;
1220 unsigned short smallblks;
1221 struct usb_device *udev;
1222 struct us_data *ss;
1223 int retry;
1224 struct scsi_cmd *srb = &usb_ccb;
1225 #if CONFIG_IS_ENABLED(BLK)
1226 struct blk_desc *block_dev;
1227 #endif
1228
1229 if (blkcnt == 0)
1230 return 0;
1231
1232 /* Setup device */
1233 #if CONFIG_IS_ENABLED(BLK)
1234 block_dev = dev_get_uclass_plat(dev);
1235 udev = dev_get_parent_priv(dev_get_parent(dev));
1236 debug("\nusb_read: udev %d\n", block_dev->devnum);
1237 #else
1238 debug("\nusb_read: udev %d\n", block_dev->devnum);
1239 udev = usb_dev_desc[block_dev->devnum].priv;
1240 if (!udev) {
1241 debug("%s: No device\n", __func__);
1242 return 0;
1243 }
1244 #endif
1245 ss = (struct us_data *)udev->privptr;
1246
1247 usb_disable_asynch(1); /* asynch transfer not allowed */
1248 usb_lock_async(udev, 1);
1249
1250 srb->lun = block_dev->lun;
1251 buf_addr = (uintptr_t)buffer;
1252 start = blknr;
1253 blks = blkcnt;
1254
1255 debug("\nusb_write: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
1256 block_dev->devnum, start, blks, buf_addr);
1257
1258 do {
1259 /* If write fails retry for max retry count else
1260 * return with number of blocks written successfully.
1261 */
1262 retry = 2;
1263 srb->pdata = (unsigned char *)buf_addr;
1264 if (blks > ss->max_xfer_blk)
1265 smallblks = ss->max_xfer_blk;
1266 else
1267 smallblks = (unsigned short) blks;
1268 retry_it:
1269 if (smallblks == ss->max_xfer_blk)
1270 usb_show_progress();
1271 srb->datalen = block_dev->blksz * smallblks;
1272 srb->pdata = (unsigned char *)buf_addr;
1273 if (usb_write_10(srb, ss, start, smallblks)) {
1274 debug("Write ERROR\n");
1275 ss->flags &= ~USB_READY;
1276 usb_request_sense(srb, ss);
1277 if (retry--)
1278 goto retry_it;
1279 blkcnt -= blks;
1280 break;
1281 }
1282 start += smallblks;
1283 blks -= smallblks;
1284 buf_addr += srb->datalen;
1285 } while (blks != 0);
1286
1287 debug("usb_write: end startblk " LBAF ", blccnt %x buffer %lx\n",
1288 start, smallblks, buf_addr);
1289
1290 usb_lock_async(udev, 0);
1291 usb_disable_asynch(0); /* asynch transfer allowed */
1292 if (blkcnt >= ss->max_xfer_blk)
1293 debug("\n");
1294 return blkcnt;
1295
1296 }
1297
1298 /* Probe to see if a new device is actually a Storage device */
1299 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
1300 struct us_data *ss)
1301 {
1302 struct usb_interface *iface;
1303 int i;
1304 struct usb_endpoint_descriptor *ep_desc;
1305 unsigned int flags = 0;
1306
1307 /* let's examine the device now */
1308 iface = &dev->config.if_desc[ifnum];
1309
1310 if (dev->descriptor.bDeviceClass != 0 ||
1311 iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE ||
1312 iface->desc.bInterfaceSubClass < US_SC_MIN ||
1313 iface->desc.bInterfaceSubClass > US_SC_MAX) {
1314 debug("Not mass storage\n");
1315 /* if it's not a mass storage, we go no further */
1316 return 0;
1317 }
1318
1319 memset(ss, 0, sizeof(struct us_data));
1320
1321 /* At this point, we know we've got a live one */
1322 debug("\n\nUSB Mass Storage device detected\n");
1323
1324 /* Initialize the us_data structure with some useful info */
1325 ss->flags = flags;
1326 ss->ifnum = ifnum;
1327 ss->pusb_dev = dev;
1328 ss->attention_done = 0;
1329 ss->subclass = iface->desc.bInterfaceSubClass;
1330 ss->protocol = iface->desc.bInterfaceProtocol;
1331
1332 /* set the handler pointers based on the protocol */
1333 debug("Transport: ");
1334 switch (ss->protocol) {
1335 case US_PR_CB:
1336 debug("Control/Bulk\n");
1337 ss->transport = usb_stor_CB_transport;
1338 ss->transport_reset = usb_stor_CB_reset;
1339 break;
1340
1341 case US_PR_CBI:
1342 debug("Control/Bulk/Interrupt\n");
1343 ss->transport = usb_stor_CB_transport;
1344 ss->transport_reset = usb_stor_CB_reset;
1345 break;
1346 case US_PR_BULK:
1347 debug("Bulk/Bulk/Bulk\n");
1348 ss->transport = usb_stor_BBB_transport;
1349 ss->transport_reset = usb_stor_BBB_reset;
1350 break;
1351 default:
1352 printf("USB Storage Transport unknown / not yet implemented\n");
1353 return 0;
1354 break;
1355 }
1356
1357 /*
1358 * We are expecting a minimum of 2 endpoints - in and out (bulk).
1359 * An optional interrupt is OK (necessary for CBI protocol).
1360 * We will ignore any others.
1361 */
1362 for (i = 0; i < iface->desc.bNumEndpoints; i++) {
1363 ep_desc = &iface->ep_desc[i];
1364 /* is it an BULK endpoint? */
1365 if ((ep_desc->bmAttributes &
1366 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) {
1367 if (ep_desc->bEndpointAddress & USB_DIR_IN)
1368 ss->ep_in = ep_desc->bEndpointAddress &
1369 USB_ENDPOINT_NUMBER_MASK;
1370 else
1371 ss->ep_out =
1372 ep_desc->bEndpointAddress &
1373 USB_ENDPOINT_NUMBER_MASK;
1374 }
1375
1376 /* is it an interrupt endpoint? */
1377 if ((ep_desc->bmAttributes &
1378 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) {
1379 ss->ep_int = ep_desc->bEndpointAddress &
1380 USB_ENDPOINT_NUMBER_MASK;
1381 ss->irqinterval = ep_desc->bInterval;
1382 }
1383 }
1384 debug("Endpoints In %d Out %d Int %d\n",
1385 ss->ep_in, ss->ep_out, ss->ep_int);
1386
1387 /* Do some basic sanity checks, and bail if we find a problem */
1388 if (usb_set_interface(dev, iface->desc.bInterfaceNumber, 0) ||
1389 !ss->ep_in || !ss->ep_out ||
1390 (ss->protocol == US_PR_CBI && ss->ep_int == 0)) {
1391 debug("Problems with device\n");
1392 return 0;
1393 }
1394 /* set class specific stuff */
1395 /* We only handle certain protocols. Currently, these are
1396 * the only ones.
1397 * The SFF8070 accepts the requests used in u-boot
1398 */
1399 if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI &&
1400 ss->subclass != US_SC_8070) {
1401 printf("Sorry, protocol %d not yet supported.\n", ss->subclass);
1402 return 0;
1403 }
1404 if (ss->ep_int) {
1405 /* we had found an interrupt endpoint, prepare irq pipe
1406 * set up the IRQ pipe and handler
1407 */
1408 ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255;
1409 ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int);
1410 ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe);
1411 dev->irq_handle = usb_stor_irq;
1412 }
1413
1414 /* Set the maximum transfer size per host controller setting */
1415 usb_stor_set_max_xfer_blk(dev, ss);
1416
1417 dev->privptr = (void *)ss;
1418 return 1;
1419 }
1420
1421 int usb_stor_get_info(struct usb_device *dev, struct us_data *ss,
1422 struct blk_desc *dev_desc)
1423 {
1424 unsigned char perq, modi;
1425 ALLOC_CACHE_ALIGN_BUFFER(u32, cap, 2);
1426 ALLOC_CACHE_ALIGN_BUFFER(u8, usb_stor_buf, 36);
1427 u32 capacity, blksz;
1428 struct scsi_cmd *pccb = &usb_ccb;
1429
1430 pccb->pdata = usb_stor_buf;
1431
1432 dev_desc->target = dev->devnum;
1433 pccb->lun = dev_desc->lun;
1434 debug(" address %d\n", dev_desc->target);
1435
1436 if (usb_inquiry(pccb, ss)) {
1437 debug("%s: usb_inquiry() failed\n", __func__);
1438 return -1;
1439 }
1440
1441 perq = usb_stor_buf[0];
1442 modi = usb_stor_buf[1];
1443
1444 /*
1445 * Skip unknown devices (0x1f) and enclosure service devices (0x0d),
1446 * they would not respond to test_unit_ready .
1447 */
1448 if (((perq & 0x1f) == 0x1f) || ((perq & 0x1f) == 0x0d)) {
1449 debug("%s: unknown/unsupported device\n", __func__);
1450 return 0;
1451 }
1452 if ((modi&0x80) == 0x80) {
1453 /* drive is removable */
1454 dev_desc->removable = 1;
1455 }
1456 memcpy(dev_desc->vendor, (const void *)&usb_stor_buf[8], 8);
1457 memcpy(dev_desc->product, (const void *)&usb_stor_buf[16], 16);
1458 memcpy(dev_desc->revision, (const void *)&usb_stor_buf[32], 4);
1459 dev_desc->vendor[8] = 0;
1460 dev_desc->product[16] = 0;
1461 dev_desc->revision[4] = 0;
1462 #ifdef CONFIG_USB_BIN_FIXUP
1463 usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor,
1464 (uchar *)dev_desc->product);
1465 #endif /* CONFIG_USB_BIN_FIXUP */
1466 debug("ISO Vers %X, Response Data %X\n", usb_stor_buf[2],
1467 usb_stor_buf[3]);
1468 if (usb_test_unit_ready(pccb, ss)) {
1469 printf("Device NOT ready\n"
1470 " Request Sense returned %02X %02X %02X\n",
1471 pccb->sense_buf[2], pccb->sense_buf[12],
1472 pccb->sense_buf[13]);
1473 if (dev_desc->removable == 1)
1474 dev_desc->type = perq;
1475 return 0;
1476 }
1477 pccb->pdata = (unsigned char *)cap;
1478 memset(pccb->pdata, 0, 8);
1479 if (usb_read_capacity(pccb, ss) != 0) {
1480 printf("READ_CAP ERROR\n");
1481 ss->flags &= ~USB_READY;
1482 cap[0] = 2880;
1483 cap[1] = 0x200;
1484 }
1485 debug("Read Capacity returns: 0x%08x, 0x%08x\n", cap[0], cap[1]);
1486 #if 0
1487 if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */
1488 cap[0] >>= 16;
1489
1490 cap[0] = cpu_to_be32(cap[0]);
1491 cap[1] = cpu_to_be32(cap[1]);
1492 #endif
1493
1494 capacity = be32_to_cpu(cap[0]) + 1;
1495 blksz = be32_to_cpu(cap[1]);
1496
1497 debug("Capacity = 0x%08x, blocksz = 0x%08x\n", capacity, blksz);
1498 dev_desc->lba = capacity;
1499 dev_desc->blksz = blksz;
1500 dev_desc->log2blksz = LOG2(dev_desc->blksz);
1501 dev_desc->type = perq;
1502 debug(" address %d\n", dev_desc->target);
1503
1504 return 1;
1505 }
1506
1507 #if CONFIG_IS_ENABLED(DM_USB)
1508
1509 static int usb_mass_storage_probe(struct udevice *dev)
1510 {
1511 struct usb_device *udev = dev_get_parent_priv(dev);
1512 int ret;
1513
1514 usb_disable_asynch(1); /* asynch transfer not allowed */
1515 ret = usb_stor_probe_device(udev);
1516 usb_disable_asynch(0); /* asynch transfer allowed */
1517
1518 return ret;
1519 }
1520
1521 static const struct udevice_id usb_mass_storage_ids[] = {
1522 { .compatible = "usb-mass-storage" },
1523 { }
1524 };
1525
1526 U_BOOT_DRIVER(usb_mass_storage) = {
1527 .name = "usb_mass_storage",
1528 .id = UCLASS_MASS_STORAGE,
1529 .of_match = usb_mass_storage_ids,
1530 .probe = usb_mass_storage_probe,
1531 #if CONFIG_IS_ENABLED(BLK)
1532 .plat_auto = sizeof(struct us_data),
1533 #endif
1534 };
1535
1536 UCLASS_DRIVER(usb_mass_storage) = {
1537 .id = UCLASS_MASS_STORAGE,
1538 .name = "usb_mass_storage",
1539 };
1540
1541 static const struct usb_device_id mass_storage_id_table[] = {
1542 {
1543 .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
1544 .bInterfaceClass = USB_CLASS_MASS_STORAGE
1545 },
1546 { } /* Terminating entry */
1547 };
1548
1549 U_BOOT_USB_DEVICE(usb_mass_storage, mass_storage_id_table);
1550 #endif
1551
1552 #if CONFIG_IS_ENABLED(BLK)
1553 static const struct blk_ops usb_storage_ops = {
1554 .read = usb_stor_read,
1555 .write = usb_stor_write,
1556 };
1557
1558 U_BOOT_DRIVER(usb_storage_blk) = {
1559 .name = "usb_storage_blk",
1560 .id = UCLASS_BLK,
1561 .ops = &usb_storage_ops,
1562 };
1563 #else
1564 U_BOOT_LEGACY_BLK(usb) = {
1565 .if_typename = "usb",
1566 .if_type = IF_TYPE_USB,
1567 .max_devs = USB_MAX_STOR_DEV,
1568 .desc = usb_dev_desc,
1569 };
1570 #endif
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