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[people/ms/u-boot.git] / common / usb_storage.c
1 /*
2 * Most of this source has been derived from the Linux USB
3 * project:
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.
8 *
9 *
10 * Adapted for U-Boot:
11 * (C) Copyright 2001 Denis Peter, MPL AG Switzerland
12 *
13 * For BBB support (C) Copyright 2003
14 * Gary Jennejohn, DENX Software Engineering <gj@denx.de>
15 *
16 * BBB support based on /sys/dev/usb/umass.c from
17 * FreeBSD.
18 *
19 * See file CREDITS for list of people who contributed to this
20 * project.
21 *
22 * This program is free software; you can redistribute it and/or
23 * modify it under the terms of the GNU General Public License as
24 * published by the Free Software Foundation; either version 2 of
25 * the License, or (at your option) any later version.
26 *
27 * This program is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
31 *
32 * You should have received a copy of the GNU General Public License
33 * along with this program; if not, write to the Free Software
34 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
35 * MA 02111-1307 USA
36 *
37 */
38
39 /* Note:
40 * Currently only the CBI transport protocoll has been implemented, and it
41 * is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
42 * transport protocoll may work as well.
43 */
44 /*
45 * New Note:
46 * Support for USB Mass Storage Devices (BBB) has been added. It has
47 * only been tested with USB memory sticks.
48 * Nota bene: if you are using the BBB support with a little-endian
49 * CPU then you MUST define LITTLEENDIAN in the configuration file!
50 */
51
52
53 #include <common.h>
54 #include <command.h>
55 #include <asm/processor.h>
56
57
58 #if defined(CONFIG_CMD_USB)
59 #include <part.h>
60 #include <usb.h>
61
62 #ifdef CONFIG_USB_STORAGE
63
64 #undef USB_STOR_DEBUG
65 #undef BBB_COMDAT_TRACE
66 #undef BBB_XPORT_TRACE
67
68 #ifdef USB_STOR_DEBUG
69 #define USB_STOR_PRINTF(fmt,args...) printf (fmt ,##args)
70 #else
71 #define USB_STOR_PRINTF(fmt,args...)
72 #endif
73
74 #include <scsi.h>
75 /* direction table -- this indicates the direction of the data
76 * transfer for each command code -- a 1 indicates input
77 */
78 unsigned char us_direction[256/8] = {
79 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
80 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
81 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
82 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
83 };
84 #define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
85
86 static unsigned char usb_stor_buf[512];
87 static ccb usb_ccb;
88
89 /*
90 * CBI style
91 */
92
93 #define US_CBI_ADSC 0
94
95 /*
96 * BULK only
97 */
98 #define US_BBB_RESET 0xff
99 #define US_BBB_GET_MAX_LUN 0xfe
100
101 /* Command Block Wrapper */
102 typedef struct {
103 __u32 dCBWSignature;
104 # define CBWSIGNATURE 0x43425355
105 __u32 dCBWTag;
106 __u32 dCBWDataTransferLength;
107 __u8 bCBWFlags;
108 # define CBWFLAGS_OUT 0x00
109 # define CBWFLAGS_IN 0x80
110 __u8 bCBWLUN;
111 __u8 bCDBLength;
112 # define CBWCDBLENGTH 16
113 __u8 CBWCDB[CBWCDBLENGTH];
114 } umass_bbb_cbw_t;
115 #define UMASS_BBB_CBW_SIZE 31
116 static __u32 CBWTag = 0;
117
118 /* Command Status Wrapper */
119 typedef struct {
120 __u32 dCSWSignature;
121 # define CSWSIGNATURE 0x53425355
122 __u32 dCSWTag;
123 __u32 dCSWDataResidue;
124 __u8 bCSWStatus;
125 # define CSWSTATUS_GOOD 0x0
126 # define CSWSTATUS_FAILED 0x1
127 # define CSWSTATUS_PHASE 0x2
128 } umass_bbb_csw_t;
129 #define UMASS_BBB_CSW_SIZE 13
130
131 #define USB_MAX_STOR_DEV 5
132 static int usb_max_devs = 0; /* number of highest available usb device */
133
134 static block_dev_desc_t usb_dev_desc[USB_MAX_STOR_DEV];
135
136 struct us_data;
137 typedef int (*trans_cmnd)(ccb*, struct us_data*);
138 typedef int (*trans_reset)(struct us_data*);
139
140 struct us_data {
141 struct usb_device *pusb_dev; /* this usb_device */
142 unsigned int flags; /* from filter initially */
143 unsigned char ifnum; /* interface number */
144 unsigned char ep_in; /* in endpoint */
145 unsigned char ep_out; /* out ....... */
146 unsigned char ep_int; /* interrupt . */
147 unsigned char subclass; /* as in overview */
148 unsigned char protocol; /* .............. */
149 unsigned char attention_done; /* force attn on first cmd */
150 unsigned short ip_data; /* interrupt data */
151 int action; /* what to do */
152 int ip_wanted; /* needed */
153 int *irq_handle; /* for USB int requests */
154 unsigned int irqpipe; /* pipe for release_irq */
155 unsigned char irqmaxp; /* max packed for irq Pipe */
156 unsigned char irqinterval; /* Intervall for IRQ Pipe */
157 ccb *srb; /* current srb */
158 trans_reset transport_reset; /* reset routine */
159 trans_cmnd transport; /* transport routine */
160 };
161
162 static struct us_data usb_stor[USB_MAX_STOR_DEV];
163
164
165 #define USB_STOR_TRANSPORT_GOOD 0
166 #define USB_STOR_TRANSPORT_FAILED -1
167 #define USB_STOR_TRANSPORT_ERROR -2
168
169
170 int usb_stor_get_info(struct usb_device *dev, struct us_data *us, block_dev_desc_t *dev_desc);
171 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,struct us_data *ss);
172 unsigned long usb_stor_read(int device, unsigned long blknr, unsigned long blkcnt, void *buffer);
173 struct usb_device * usb_get_dev_index(int index);
174 void uhci_show_temp_int_td(void);
175
176 block_dev_desc_t *usb_stor_get_dev(int index)
177 {
178 return (index < USB_MAX_STOR_DEV) ? &usb_dev_desc[index] : NULL;
179 }
180
181
182 void usb_show_progress(void)
183 {
184 printf(".");
185 }
186
187 /*********************************************************************************
188 * show info on storage devices; 'usb start/init' must be invoked earlier
189 * as we only retrieve structures populated during devices initialization
190 */
191 void usb_stor_info(void)
192 {
193 int i;
194
195 if (usb_max_devs > 0)
196 for (i = 0; i < usb_max_devs; i++) {
197 printf (" Device %d: ", i);
198 dev_print(&usb_dev_desc[i]);
199 }
200 else
201 printf("No storage devices, perhaps not 'usb start'ed..?\n");
202 }
203
204 /*********************************************************************************
205 * scan the usb and reports device info
206 * to the user if mode = 1
207 * returns current device or -1 if no
208 */
209 int usb_stor_scan(int mode)
210 {
211 unsigned char i;
212 struct usb_device *dev;
213
214 /* GJ */
215 memset(usb_stor_buf, 0, sizeof(usb_stor_buf));
216
217 if(mode==1) {
218 printf(" scanning bus for storage devices... ");
219 }
220 usb_disable_asynch(1); /* asynch transfer not allowed */
221
222 for(i=0;i<USB_MAX_STOR_DEV;i++) {
223 memset(&usb_dev_desc[i],0,sizeof(block_dev_desc_t));
224 usb_dev_desc[i].target=0xff;
225 usb_dev_desc[i].if_type=IF_TYPE_USB;
226 usb_dev_desc[i].dev=i;
227 usb_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
228 usb_dev_desc[i].block_read=usb_stor_read;
229 }
230
231 usb_max_devs=0;
232 for(i=0;i<USB_MAX_DEVICE;i++) {
233 dev=usb_get_dev_index(i); /* get device */
234 USB_STOR_PRINTF("i=%d\n",i);
235 if(dev==NULL) {
236 break; /* no more devices avaiable */
237 }
238 if(usb_storage_probe(dev,0,&usb_stor[usb_max_devs])) { /* ok, it is a storage devices */
239 /* get info and fill it in */
240 if(usb_stor_get_info(dev, &usb_stor[usb_max_devs], &usb_dev_desc[usb_max_devs]))
241 usb_max_devs++;
242 } /* if storage device */
243 if(usb_max_devs==USB_MAX_STOR_DEV) {
244 printf("max USB Storage Device reached: %d stopping\n",usb_max_devs);
245 break;
246 }
247 } /* for */
248
249 usb_disable_asynch(0); /* asynch transfer allowed */
250 printf("%d Storage Device(s) found\n", usb_max_devs);
251 if(usb_max_devs>0)
252 return 0;
253 else
254 return-1;
255 }
256
257 static int usb_stor_irq(struct usb_device *dev)
258 {
259 struct us_data *us;
260 us=(struct us_data *)dev->privptr;
261
262 if(us->ip_wanted) {
263 us->ip_wanted=0;
264 }
265 return 0;
266 }
267
268
269 #ifdef USB_STOR_DEBUG
270
271 static void usb_show_srb(ccb * pccb)
272 {
273 int i;
274 printf("SRB: len %d datalen 0x%lX\n ",pccb->cmdlen,pccb->datalen);
275 for(i=0;i<12;i++) {
276 printf("%02X ",pccb->cmd[i]);
277 }
278 printf("\n");
279 }
280
281 static void display_int_status(unsigned long tmp)
282 {
283 printf("Status: %s %s %s %s %s %s %s\n",
284 (tmp & USB_ST_ACTIVE) ? "Active" : "",
285 (tmp & USB_ST_STALLED) ? "Stalled" : "",
286 (tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "",
287 (tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "",
288 (tmp & USB_ST_NAK_REC) ? "NAKed" : "",
289 (tmp & USB_ST_CRC_ERR) ? "CRC Error" : "",
290 (tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : "");
291 }
292 #endif
293 /***********************************************************************
294 * Data transfer routines
295 ***********************************************************************/
296
297 static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length)
298 {
299 int max_size;
300 int this_xfer;
301 int result;
302 int partial;
303 int maxtry;
304 int stat;
305
306 /* determine the maximum packet size for these transfers */
307 max_size = usb_maxpacket(us->pusb_dev, pipe) * 16;
308
309 /* while we have data left to transfer */
310 while (length) {
311
312 /* calculate how long this will be -- maximum or a remainder */
313 this_xfer = length > max_size ? max_size : length;
314 length -= this_xfer;
315
316 /* setup the retry counter */
317 maxtry = 10;
318
319 /* set up the transfer loop */
320 do {
321 /* transfer the data */
322 USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\n",
323 (unsigned int)buf, this_xfer, 11 - maxtry);
324 result = usb_bulk_msg(us->pusb_dev, pipe, buf,
325 this_xfer, &partial, USB_CNTL_TIMEOUT*5);
326 USB_STOR_PRINTF("bulk_msg returned %d xferred %d/%d\n",
327 result, partial, this_xfer);
328 if(us->pusb_dev->status!=0) {
329 /* if we stall, we need to clear it before we go on */
330 #ifdef USB_STOR_DEBUG
331 display_int_status(us->pusb_dev->status);
332 #endif
333 if (us->pusb_dev->status & USB_ST_STALLED) {
334 USB_STOR_PRINTF("stalled ->clearing endpoint halt for pipe 0x%x\n", pipe);
335 stat = us->pusb_dev->status;
336 usb_clear_halt(us->pusb_dev, pipe);
337 us->pusb_dev->status=stat;
338 if(this_xfer == partial) {
339 USB_STOR_PRINTF("bulk transferred with error %X, but data ok\n",us->pusb_dev->status);
340 return 0;
341 }
342 else
343 return result;
344 }
345 if (us->pusb_dev->status & USB_ST_NAK_REC) {
346 USB_STOR_PRINTF("Device NAKed bulk_msg\n");
347 return result;
348 }
349 if(this_xfer == partial) {
350 USB_STOR_PRINTF("bulk transferred with error %d, but data ok\n",us->pusb_dev->status);
351 return 0;
352 }
353 /* if our try counter reaches 0, bail out */
354 USB_STOR_PRINTF("bulk transferred with error %d, data %d\n",us->pusb_dev->status,partial);
355 if (!maxtry--)
356 return result;
357 }
358 /* update to show what data was transferred */
359 this_xfer -= partial;
360 buf += partial;
361 /* continue until this transfer is done */
362 } while ( this_xfer );
363 }
364
365 /* if we get here, we're done and successful */
366 return 0;
367 }
368
369 static int usb_stor_BBB_reset(struct us_data *us)
370 {
371 int result;
372 unsigned int pipe;
373
374 /*
375 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
376 *
377 * For Reset Recovery the host shall issue in the following order:
378 * a) a Bulk-Only Mass Storage Reset
379 * b) a Clear Feature HALT to the Bulk-In endpoint
380 * c) a Clear Feature HALT to the Bulk-Out endpoint
381 *
382 * This is done in 3 steps.
383 *
384 * If the reset doesn't succeed, the device should be port reset.
385 *
386 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
387 */
388 USB_STOR_PRINTF("BBB_reset\n");
389 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0),
390 US_BBB_RESET, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
391 0, us->ifnum, 0, 0, USB_CNTL_TIMEOUT*5);
392
393 if((result < 0) && (us->pusb_dev->status & USB_ST_STALLED))
394 {
395 USB_STOR_PRINTF("RESET:stall\n");
396 return -1;
397 }
398
399 /* long wait for reset */
400 wait_ms(150);
401 USB_STOR_PRINTF("BBB_reset result %d: status %X reset\n",result,us->pusb_dev->status);
402 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
403 result = usb_clear_halt(us->pusb_dev, pipe);
404 /* long wait for reset */
405 wait_ms(150);
406 USB_STOR_PRINTF("BBB_reset result %d: status %X clearing IN endpoint\n",result,us->pusb_dev->status);
407 /* long wait for reset */
408 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
409 result = usb_clear_halt(us->pusb_dev, pipe);
410 wait_ms(150);
411 USB_STOR_PRINTF("BBB_reset result %d: status %X clearing OUT endpoint\n",result,us->pusb_dev->status);
412 USB_STOR_PRINTF("BBB_reset done\n");
413 return 0;
414 }
415
416 /* FIXME: this reset function doesn't really reset the port, and it
417 * should. Actually it should probably do what it's doing here, and
418 * reset the port physically
419 */
420 static int usb_stor_CB_reset(struct us_data *us)
421 {
422 unsigned char cmd[12];
423 int result;
424
425 USB_STOR_PRINTF("CB_reset\n");
426 memset(cmd, 0xFF, sizeof(cmd));
427 cmd[0] = SCSI_SEND_DIAG;
428 cmd[1] = 4;
429 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0),
430 US_CBI_ADSC, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
431 0, us->ifnum, cmd, sizeof(cmd), USB_CNTL_TIMEOUT*5);
432
433 /* long wait for reset */
434 wait_ms(1500);
435 USB_STOR_PRINTF("CB_reset result %d: status %X clearing endpoint halt\n",result,us->pusb_dev->status);
436 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in));
437 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out));
438
439 USB_STOR_PRINTF("CB_reset done\n");
440 return 0;
441 }
442
443 /*
444 * Set up the command for a BBB device. Note that the actual SCSI
445 * command is copied into cbw.CBWCDB.
446 */
447 int usb_stor_BBB_comdat(ccb *srb, struct us_data *us)
448 {
449 int result;
450 int actlen;
451 int dir_in;
452 unsigned int pipe;
453 umass_bbb_cbw_t cbw;
454
455 dir_in = US_DIRECTION(srb->cmd[0]);
456
457 #ifdef BBB_COMDAT_TRACE
458 printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\n", dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, srb->pdata);
459 if (srb->cmdlen) {
460 for(result = 0;result < srb->cmdlen;result++)
461 printf("cmd[%d] %#x ", result, srb->cmd[result]);
462 printf("\n");
463 }
464 #endif
465 /* sanity checks */
466 if (!(srb->cmdlen <= CBWCDBLENGTH)) {
467 USB_STOR_PRINTF("usb_stor_BBB_comdat:cmdlen too large\n");
468 return -1;
469 }
470
471 /* always OUT to the ep */
472 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
473
474 cbw.dCBWSignature = swap_32(CBWSIGNATURE);
475 cbw.dCBWTag = swap_32(CBWTag++);
476 cbw.dCBWDataTransferLength = swap_32(srb->datalen);
477 cbw.bCBWFlags = (dir_in? CBWFLAGS_IN : CBWFLAGS_OUT);
478 cbw.bCBWLUN = srb->lun;
479 cbw.bCDBLength = srb->cmdlen;
480 /* copy the command data into the CBW command data buffer */
481 /* DST SRC LEN!!! */
482 memcpy(cbw.CBWCDB, srb->cmd, srb->cmdlen);
483 result = usb_bulk_msg(us->pusb_dev, pipe, &cbw, UMASS_BBB_CBW_SIZE, &actlen, USB_CNTL_TIMEOUT*5);
484 if (result < 0)
485 USB_STOR_PRINTF("usb_stor_BBB_comdat:usb_bulk_msg error\n");
486 return result;
487 }
488
489 /* FIXME: we also need a CBI_command which sets up the completion
490 * interrupt, and waits for it
491 */
492 int usb_stor_CB_comdat(ccb *srb, struct us_data *us)
493 {
494 int result = 0;
495 int dir_in,retry;
496 unsigned int pipe;
497 unsigned long status;
498
499 retry=5;
500 dir_in=US_DIRECTION(srb->cmd[0]);
501
502 if(dir_in)
503 pipe=usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
504 else
505 pipe=usb_sndbulkpipe(us->pusb_dev, us->ep_out);
506 while(retry--) {
507 USB_STOR_PRINTF("CBI gets a command: Try %d\n",5-retry);
508 #ifdef USB_STOR_DEBUG
509 usb_show_srb(srb);
510 #endif
511 /* let's send the command via the control pipe */
512 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0),
513 US_CBI_ADSC, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
514 0, us->ifnum,
515 srb->cmd, srb->cmdlen, USB_CNTL_TIMEOUT*5);
516 USB_STOR_PRINTF("CB_transport: control msg returned %d, status %X\n",result,us->pusb_dev->status);
517 /* check the return code for the command */
518 if (result < 0) {
519 if(us->pusb_dev->status & USB_ST_STALLED) {
520 status=us->pusb_dev->status;
521 USB_STOR_PRINTF(" stall during command found, clear pipe\n");
522 usb_clear_halt(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0));
523 us->pusb_dev->status=status;
524 }
525 USB_STOR_PRINTF(" error during command %02X Stat = %X\n",srb->cmd[0],us->pusb_dev->status);
526 return result;
527 }
528 /* transfer the data payload for this command, if one exists*/
529
530 USB_STOR_PRINTF("CB_transport: control msg returned %d, direction is %s to go 0x%lx\n",result,dir_in ? "IN" : "OUT",srb->datalen);
531 if (srb->datalen) {
532 result = us_one_transfer(us, pipe, (char *)srb->pdata,srb->datalen);
533 USB_STOR_PRINTF("CBI attempted to transfer data, result is %d status %lX, len %d\n", result,us->pusb_dev->status,us->pusb_dev->act_len);
534 if(!(us->pusb_dev->status & USB_ST_NAK_REC))
535 break;
536 } /* if (srb->datalen) */
537 else
538 break;
539 }
540 /* return result */
541
542 return result;
543 }
544
545
546 int usb_stor_CBI_get_status (ccb * srb, struct us_data *us)
547 {
548 int timeout;
549
550 us->ip_wanted = 1;
551 submit_int_msg (us->pusb_dev, us->irqpipe,
552 (void *) &us->ip_data, us->irqmaxp, us->irqinterval);
553 timeout = 1000;
554 while (timeout--) {
555 if ((volatile int *) us->ip_wanted == 0)
556 break;
557 wait_ms (10);
558 }
559 if (us->ip_wanted) {
560 printf (" Did not get interrupt on CBI\n");
561 us->ip_wanted = 0;
562 return USB_STOR_TRANSPORT_ERROR;
563 }
564 USB_STOR_PRINTF
565 ("Got interrupt data 0x%x, transfered %d status 0x%lX\n",
566 us->ip_data, us->pusb_dev->irq_act_len,
567 us->pusb_dev->irq_status);
568 /* UFI gives us ASC and ASCQ, like a request sense */
569 if (us->subclass == US_SC_UFI) {
570 if (srb->cmd[0] == SCSI_REQ_SENSE ||
571 srb->cmd[0] == SCSI_INQUIRY)
572 return USB_STOR_TRANSPORT_GOOD; /* Good */
573 else if (us->ip_data)
574 return USB_STOR_TRANSPORT_FAILED;
575 else
576 return USB_STOR_TRANSPORT_GOOD;
577 }
578 /* otherwise, we interpret the data normally */
579 switch (us->ip_data) {
580 case 0x0001:
581 return USB_STOR_TRANSPORT_GOOD;
582 case 0x0002:
583 return USB_STOR_TRANSPORT_FAILED;
584 default:
585 return USB_STOR_TRANSPORT_ERROR;
586 } /* switch */
587 return USB_STOR_TRANSPORT_ERROR;
588 }
589
590 #define USB_TRANSPORT_UNKNOWN_RETRY 5
591 #define USB_TRANSPORT_NOT_READY_RETRY 10
592
593 /* clear a stall on an endpoint - special for BBB devices */
594 int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt)
595 {
596 int result;
597
598 /* ENDPOINT_HALT = 0, so set value to 0 */
599 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0),
600 USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT,
601 0, endpt, 0, 0, USB_CNTL_TIMEOUT*5);
602 return result;
603 }
604
605 int usb_stor_BBB_transport(ccb *srb, struct us_data *us)
606 {
607 int result, retry;
608 int dir_in;
609 int actlen, data_actlen;
610 unsigned int pipe, pipein, pipeout;
611 umass_bbb_csw_t csw;
612 #ifdef BBB_XPORT_TRACE
613 unsigned char *ptr;
614 int index;
615 #endif
616
617 dir_in = US_DIRECTION(srb->cmd[0]);
618
619 /* COMMAND phase */
620 USB_STOR_PRINTF("COMMAND phase\n");
621 result = usb_stor_BBB_comdat(srb, us);
622 if (result < 0) {
623 USB_STOR_PRINTF("failed to send CBW status %ld\n",
624 us->pusb_dev->status);
625 usb_stor_BBB_reset(us);
626 return USB_STOR_TRANSPORT_FAILED;
627 }
628 wait_ms(5);
629 pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
630 pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
631 /* DATA phase + error handling */
632 data_actlen = 0;
633 /* no data, go immediately to the STATUS phase */
634 if (srb->datalen == 0)
635 goto st;
636 USB_STOR_PRINTF("DATA phase\n");
637 if (dir_in)
638 pipe = pipein;
639 else
640 pipe = pipeout;
641 result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen, &data_actlen, USB_CNTL_TIMEOUT*5);
642 /* special handling of STALL in DATA phase */
643 if((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) {
644 USB_STOR_PRINTF("DATA:stall\n");
645 /* clear the STALL on the endpoint */
646 result = usb_stor_BBB_clear_endpt_stall(us, dir_in? us->ep_in : us->ep_out);
647 if (result >= 0)
648 /* continue on to STATUS phase */
649 goto st;
650 }
651 if (result < 0) {
652 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n",
653 us->pusb_dev->status);
654 usb_stor_BBB_reset(us);
655 return USB_STOR_TRANSPORT_FAILED;
656 }
657 #ifdef BBB_XPORT_TRACE
658 for (index = 0; index < data_actlen; index++)
659 printf("pdata[%d] %#x ", index, srb->pdata[index]);
660 printf("\n");
661 #endif
662 /* STATUS phase + error handling */
663 st:
664 retry = 0;
665 again:
666 USB_STOR_PRINTF("STATUS phase\n");
667 result = usb_bulk_msg(us->pusb_dev, pipein, &csw, UMASS_BBB_CSW_SIZE,
668 &actlen, USB_CNTL_TIMEOUT*5);
669
670 /* special handling of STALL in STATUS phase */
671 if((result < 0) && (retry < 1) && (us->pusb_dev->status & USB_ST_STALLED)) {
672 USB_STOR_PRINTF("STATUS:stall\n");
673 /* clear the STALL on the endpoint */
674 result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in);
675 if (result >= 0 && (retry++ < 1))
676 /* do a retry */
677 goto again;
678 }
679 if (result < 0) {
680 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n",
681 us->pusb_dev->status);
682 usb_stor_BBB_reset(us);
683 return USB_STOR_TRANSPORT_FAILED;
684 }
685 #ifdef BBB_XPORT_TRACE
686 ptr = (unsigned char *)&csw;
687 for (index = 0; index < UMASS_BBB_CSW_SIZE; index++)
688 printf("ptr[%d] %#x ", index, ptr[index]);
689 printf("\n");
690 #endif
691 /* misuse pipe to get the residue */
692 pipe = swap_32(csw.dCSWDataResidue);
693 if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0)
694 pipe = srb->datalen - data_actlen;
695 if (CSWSIGNATURE != swap_32(csw.dCSWSignature)) {
696 USB_STOR_PRINTF("!CSWSIGNATURE\n");
697 usb_stor_BBB_reset(us);
698 return USB_STOR_TRANSPORT_FAILED;
699 } else if ((CBWTag - 1) != swap_32(csw.dCSWTag)) {
700 USB_STOR_PRINTF("!Tag\n");
701 usb_stor_BBB_reset(us);
702 return USB_STOR_TRANSPORT_FAILED;
703 } else if (csw.bCSWStatus > CSWSTATUS_PHASE) {
704 USB_STOR_PRINTF(">PHASE\n");
705 usb_stor_BBB_reset(us);
706 return USB_STOR_TRANSPORT_FAILED;
707 } else if (csw.bCSWStatus == CSWSTATUS_PHASE) {
708 USB_STOR_PRINTF("=PHASE\n");
709 usb_stor_BBB_reset(us);
710 return USB_STOR_TRANSPORT_FAILED;
711 } else if (data_actlen > srb->datalen) {
712 USB_STOR_PRINTF("transferred %dB instead of %dB\n",
713 data_actlen, srb->datalen);
714 return USB_STOR_TRANSPORT_FAILED;
715 } else if (csw.bCSWStatus == CSWSTATUS_FAILED) {
716 USB_STOR_PRINTF("FAILED\n");
717 return USB_STOR_TRANSPORT_FAILED;
718 }
719
720 return result;
721 }
722
723 int usb_stor_CB_transport(ccb *srb, struct us_data *us)
724 {
725 int result,status;
726 ccb *psrb;
727 ccb reqsrb;
728 int retry,notready;
729
730 psrb=&reqsrb;
731 status=USB_STOR_TRANSPORT_GOOD;
732 retry=0;
733 notready=0;
734 /* issue the command */
735 do_retry:
736 result=usb_stor_CB_comdat(srb,us);
737 USB_STOR_PRINTF("command / Data returned %d, status %X\n",result,us->pusb_dev->status);
738 /* if this is an CBI Protocol, get IRQ */
739 if(us->protocol==US_PR_CBI) {
740 status=usb_stor_CBI_get_status(srb,us);
741 /* if the status is error, report it */
742 if(status==USB_STOR_TRANSPORT_ERROR) {
743 USB_STOR_PRINTF(" USB CBI Command Error\n");
744 return status;
745 }
746 srb->sense_buf[12]=(unsigned char)(us->ip_data>>8);
747 srb->sense_buf[13]=(unsigned char)(us->ip_data&0xff);
748 if(!us->ip_data) {
749 /* if the status is good, report it */
750 if(status==USB_STOR_TRANSPORT_GOOD) {
751 USB_STOR_PRINTF(" USB CBI Command Good\n");
752 return status;
753 }
754 }
755 }
756 /* do we have to issue an auto request? */
757 /* HERE we have to check the result */
758 if((result<0) && !(us->pusb_dev->status & USB_ST_STALLED)) {
759 USB_STOR_PRINTF("ERROR %X\n",us->pusb_dev->status);
760 us->transport_reset(us);
761 return USB_STOR_TRANSPORT_ERROR;
762 }
763 if((us->protocol==US_PR_CBI) &&
764 ((srb->cmd[0]==SCSI_REQ_SENSE) ||
765 (srb->cmd[0]==SCSI_INQUIRY))) { /* do not issue an autorequest after request sense */
766 USB_STOR_PRINTF("No auto request and good\n");
767 return USB_STOR_TRANSPORT_GOOD;
768 }
769 /* issue an request_sense */
770 memset(&psrb->cmd[0],0,12);
771 psrb->cmd[0]=SCSI_REQ_SENSE;
772 psrb->cmd[1]=srb->lun<<5;
773 psrb->cmd[4]=18;
774 psrb->datalen=18;
775 psrb->pdata=&srb->sense_buf[0];
776 psrb->cmdlen=12;
777 /* issue the command */
778 result=usb_stor_CB_comdat(psrb,us);
779 USB_STOR_PRINTF("auto request returned %d\n",result);
780 /* if this is an CBI Protocol, get IRQ */
781 if(us->protocol==US_PR_CBI) {
782 status=usb_stor_CBI_get_status(psrb,us);
783 }
784 if((result<0)&&!(us->pusb_dev->status & USB_ST_STALLED)) {
785 USB_STOR_PRINTF(" AUTO REQUEST ERROR %d\n",us->pusb_dev->status);
786 return USB_STOR_TRANSPORT_ERROR;
787 }
788 USB_STOR_PRINTF("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
789 /* Check the auto request result */
790 if((srb->sense_buf[2]==0) &&
791 (srb->sense_buf[12]==0) &&
792 (srb->sense_buf[13]==0)) /* ok, no sense */
793 return USB_STOR_TRANSPORT_GOOD;
794 /* Check the auto request result */
795 switch(srb->sense_buf[2]) {
796 case 0x01: /* Recovered Error */
797 return USB_STOR_TRANSPORT_GOOD;
798 break;
799 case 0x02: /* Not Ready */
800 if(notready++ > USB_TRANSPORT_NOT_READY_RETRY) {
801 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X (NOT READY)\n",
802 srb->cmd[0],srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
803 return USB_STOR_TRANSPORT_FAILED;
804 } else {
805 wait_ms(100);
806 goto do_retry;
807 }
808 break;
809 default:
810 if(retry++ > USB_TRANSPORT_UNKNOWN_RETRY) {
811 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
812 srb->cmd[0],srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
813 return USB_STOR_TRANSPORT_FAILED;
814 } else {
815 goto do_retry;
816 }
817 break;
818 }
819 return USB_STOR_TRANSPORT_FAILED;
820 }
821
822
823 static int usb_inquiry(ccb *srb,struct us_data *ss)
824 {
825 int retry,i;
826 retry=5;
827 do {
828 memset(&srb->cmd[0],0,12);
829 srb->cmd[0]=SCSI_INQUIRY;
830 srb->cmd[1]=srb->lun<<5;
831 srb->cmd[4]=36;
832 srb->datalen=36;
833 srb->cmdlen=12;
834 i=ss->transport(srb,ss);
835 USB_STOR_PRINTF("inquiry returns %d\n",i);
836 if(i==0)
837 break;
838 } while(retry--);
839
840 if(!retry) {
841 printf("error in inquiry\n");
842 return -1;
843 }
844 return 0;
845 }
846
847 static int usb_request_sense(ccb *srb,struct us_data *ss)
848 {
849 char *ptr;
850
851 ptr=(char *)srb->pdata;
852 memset(&srb->cmd[0],0,12);
853 srb->cmd[0]=SCSI_REQ_SENSE;
854 srb->cmd[1]=srb->lun<<5;
855 srb->cmd[4]=18;
856 srb->datalen=18;
857 srb->pdata=&srb->sense_buf[0];
858 srb->cmdlen=12;
859 ss->transport(srb,ss);
860 USB_STOR_PRINTF("Request Sense returned %02X %02X %02X\n",srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
861 srb->pdata=(uchar *)ptr;
862 return 0;
863 }
864
865 static int usb_test_unit_ready(ccb *srb,struct us_data *ss)
866 {
867 int retries = 10;
868
869 do {
870 memset(&srb->cmd[0],0,12);
871 srb->cmd[0]=SCSI_TST_U_RDY;
872 srb->cmd[1]=srb->lun<<5;
873 srb->datalen=0;
874 srb->cmdlen=12;
875 if(ss->transport(srb,ss)==USB_STOR_TRANSPORT_GOOD) {
876 return 0;
877 }
878 usb_request_sense (srb, ss);
879 wait_ms (100);
880 } while(retries--);
881
882 return -1;
883 }
884
885 static int usb_read_capacity(ccb *srb,struct us_data *ss)
886 {
887 int retry;
888 retry = 3; /* retries */
889 do {
890 memset(&srb->cmd[0],0,12);
891 srb->cmd[0]=SCSI_RD_CAPAC;
892 srb->cmd[1]=srb->lun<<5;
893 srb->datalen=8;
894 srb->cmdlen=12;
895 if(ss->transport(srb,ss)==USB_STOR_TRANSPORT_GOOD) {
896 return 0;
897 }
898 } while(retry--);
899
900 return -1;
901 }
902
903 static int usb_read_10(ccb *srb,struct us_data *ss, unsigned long start, unsigned short blocks)
904 {
905 memset(&srb->cmd[0],0,12);
906 srb->cmd[0]=SCSI_READ10;
907 srb->cmd[1]=srb->lun<<5;
908 srb->cmd[2]=((unsigned char) (start>>24))&0xff;
909 srb->cmd[3]=((unsigned char) (start>>16))&0xff;
910 srb->cmd[4]=((unsigned char) (start>>8))&0xff;
911 srb->cmd[5]=((unsigned char) (start))&0xff;
912 srb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
913 srb->cmd[8]=(unsigned char) blocks & 0xff;
914 srb->cmdlen=12;
915 USB_STOR_PRINTF("read10: start %lx blocks %x\n",start,blocks);
916 return ss->transport(srb,ss);
917 }
918
919
920 #ifdef CONFIG_USB_BIN_FIXUP
921 /*
922 * Some USB storage devices queried for SCSI identification data respond with
923 * binary strings, which if output to the console freeze the terminal. The
924 * workaround is to modify the vendor and product strings read from such
925 * device with proper values (as reported by 'usb info').
926 *
927 * Vendor and product length limits are taken from the definition of
928 * block_dev_desc_t in include/part.h.
929 */
930 static void usb_bin_fixup(struct usb_device_descriptor descriptor,
931 unsigned char vendor[],
932 unsigned char product[]) {
933 const unsigned char max_vendor_len = 40;
934 const unsigned char max_product_len = 20;
935 if (descriptor.idVendor == 0x0424 && descriptor.idProduct == 0x223a) {
936 strncpy ((char *)vendor, "SMSC", max_vendor_len);
937 strncpy ((char *)product, "Flash Media Cntrller", max_product_len);
938 }
939 }
940 #endif /* CONFIG_USB_BIN_FIXUP */
941
942 #define USB_MAX_READ_BLK 20
943
944 unsigned long usb_stor_read(int device, unsigned long blknr, unsigned long blkcnt, void *buffer)
945 {
946 unsigned long start,blks, buf_addr;
947 unsigned short smallblks;
948 struct usb_device *dev;
949 int retry,i;
950 ccb *srb = &usb_ccb;
951
952 if (blkcnt == 0)
953 return 0;
954
955 device &= 0xff;
956 /* Setup device
957 */
958 USB_STOR_PRINTF("\nusb_read: dev %d \n",device);
959 dev=NULL;
960 for(i=0;i<USB_MAX_DEVICE;i++) {
961 dev=usb_get_dev_index(i);
962 if(dev==NULL) {
963 return 0;
964 }
965 if(dev->devnum==usb_dev_desc[device].target)
966 break;
967 }
968
969 usb_disable_asynch(1); /* asynch transfer not allowed */
970 srb->lun=usb_dev_desc[device].lun;
971 buf_addr=(unsigned long)buffer;
972 start=blknr;
973 blks=blkcnt;
974 if(usb_test_unit_ready(srb,(struct us_data *)dev->privptr)) {
975 printf("Device NOT ready\n Request Sense returned %02X %02X %02X\n",
976 srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
977 return 0;
978 }
979 USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx buffer %lx\n",device,start,blks, buf_addr);
980 do {
981 retry=2;
982 srb->pdata=(unsigned char *)buf_addr;
983 if(blks>USB_MAX_READ_BLK) {
984 smallblks=USB_MAX_READ_BLK;
985 } else {
986 smallblks=(unsigned short) blks;
987 }
988 retry_it:
989 if(smallblks==USB_MAX_READ_BLK)
990 usb_show_progress();
991 srb->datalen=usb_dev_desc[device].blksz * smallblks;
992 srb->pdata=(unsigned char *)buf_addr;
993 if(usb_read_10(srb,(struct us_data *)dev->privptr, start, smallblks)) {
994 USB_STOR_PRINTF("Read ERROR\n");
995 usb_request_sense(srb,(struct us_data *)dev->privptr);
996 if(retry--)
997 goto retry_it;
998 blkcnt-=blks;
999 break;
1000 }
1001 start+=smallblks;
1002 blks-=smallblks;
1003 buf_addr+=srb->datalen;
1004 } while(blks!=0);
1005 USB_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr);
1006 usb_disable_asynch(0); /* asynch transfer allowed */
1007 if(blkcnt>=USB_MAX_READ_BLK)
1008 printf("\n");
1009 return(blkcnt);
1010 }
1011
1012
1013 /* Probe to see if a new device is actually a Storage device */
1014 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,struct us_data *ss)
1015 {
1016 struct usb_interface_descriptor *iface;
1017 int i;
1018 unsigned int flags = 0;
1019
1020 int protocol = 0;
1021 int subclass = 0;
1022
1023 /* let's examine the device now */
1024 iface = &dev->config.if_desc[ifnum];
1025
1026 #if 0
1027 /* this is the place to patch some storage devices */
1028 USB_STOR_PRINTF("iVendor %X iProduct %X\n",dev->descriptor.idVendor,dev->descriptor.idProduct);
1029 if ((dev->descriptor.idVendor) == 0x066b && (dev->descriptor.idProduct) == 0x0103) {
1030 USB_STOR_PRINTF("patched for E-USB\n");
1031 protocol = US_PR_CB;
1032 subclass = US_SC_UFI; /* an assumption */
1033 }
1034 #endif
1035
1036 if (dev->descriptor.bDeviceClass != 0 ||
1037 iface->bInterfaceClass != USB_CLASS_MASS_STORAGE ||
1038 iface->bInterfaceSubClass < US_SC_MIN ||
1039 iface->bInterfaceSubClass > US_SC_MAX) {
1040 /* if it's not a mass storage, we go no further */
1041 return 0;
1042 }
1043
1044 memset(ss, 0, sizeof(struct us_data));
1045
1046 /* At this point, we know we've got a live one */
1047 USB_STOR_PRINTF("\n\nUSB Mass Storage device detected\n");
1048
1049 /* Initialize the us_data structure with some useful info */
1050 ss->flags = flags;
1051 ss->ifnum = ifnum;
1052 ss->pusb_dev = dev;
1053 ss->attention_done = 0;
1054
1055 /* If the device has subclass and protocol, then use that. Otherwise,
1056 * take data from the specific interface.
1057 */
1058 if (subclass) {
1059 ss->subclass = subclass;
1060 ss->protocol = protocol;
1061 } else {
1062 ss->subclass = iface->bInterfaceSubClass;
1063 ss->protocol = iface->bInterfaceProtocol;
1064 }
1065
1066 /* set the handler pointers based on the protocol */
1067 USB_STOR_PRINTF("Transport: ");
1068 switch (ss->protocol) {
1069 case US_PR_CB:
1070 USB_STOR_PRINTF("Control/Bulk\n");
1071 ss->transport = usb_stor_CB_transport;
1072 ss->transport_reset = usb_stor_CB_reset;
1073 break;
1074
1075 case US_PR_CBI:
1076 USB_STOR_PRINTF("Control/Bulk/Interrupt\n");
1077 ss->transport = usb_stor_CB_transport;
1078 ss->transport_reset = usb_stor_CB_reset;
1079 break;
1080 case US_PR_BULK:
1081 USB_STOR_PRINTF("Bulk/Bulk/Bulk\n");
1082 ss->transport = usb_stor_BBB_transport;
1083 ss->transport_reset = usb_stor_BBB_reset;
1084 break;
1085 default:
1086 printf("USB Storage Transport unknown / not yet implemented\n");
1087 return 0;
1088 break;
1089 }
1090
1091 /*
1092 * We are expecting a minimum of 2 endpoints - in and out (bulk).
1093 * An optional interrupt is OK (necessary for CBI protocol).
1094 * We will ignore any others.
1095 */
1096 for (i = 0; i < iface->bNumEndpoints; i++) {
1097 /* is it an BULK endpoint? */
1098 if ((iface->ep_desc[i].bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1099 == USB_ENDPOINT_XFER_BULK) {
1100 if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN)
1101 ss->ep_in = iface->ep_desc[i].bEndpointAddress &
1102 USB_ENDPOINT_NUMBER_MASK;
1103 else
1104 ss->ep_out = iface->ep_desc[i].bEndpointAddress &
1105 USB_ENDPOINT_NUMBER_MASK;
1106 }
1107
1108 /* is it an interrupt endpoint? */
1109 if ((iface->ep_desc[i].bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1110 == USB_ENDPOINT_XFER_INT) {
1111 ss->ep_int = iface->ep_desc[i].bEndpointAddress &
1112 USB_ENDPOINT_NUMBER_MASK;
1113 ss->irqinterval = iface->ep_desc[i].bInterval;
1114 }
1115 }
1116 USB_STOR_PRINTF("Endpoints In %d Out %d Int %d\n",
1117 ss->ep_in, ss->ep_out, ss->ep_int);
1118
1119 /* Do some basic sanity checks, and bail if we find a problem */
1120 if (usb_set_interface(dev, iface->bInterfaceNumber, 0) ||
1121 !ss->ep_in || !ss->ep_out ||
1122 (ss->protocol == US_PR_CBI && ss->ep_int == 0)) {
1123 USB_STOR_PRINTF("Problems with device\n");
1124 return 0;
1125 }
1126 /* set class specific stuff */
1127 /* We only handle certain protocols. Currently, these are
1128 * the only ones.
1129 * The SFF8070 accepts the requests used in u-boot
1130 */
1131 if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI &&
1132 ss->subclass != US_SC_8070) {
1133 printf("Sorry, protocol %d not yet supported.\n",ss->subclass);
1134 return 0;
1135 }
1136 if(ss->ep_int) { /* we had found an interrupt endpoint, prepare irq pipe */
1137 /* set up the IRQ pipe and handler */
1138
1139 ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255;
1140 ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int);
1141 ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe);
1142 dev->irq_handle=usb_stor_irq;
1143 }
1144 dev->privptr=(void *)ss;
1145 return 1;
1146 }
1147
1148 int usb_stor_get_info(struct usb_device *dev,struct us_data *ss,block_dev_desc_t *dev_desc)
1149 {
1150 unsigned char perq,modi;
1151 unsigned long cap[2];
1152 unsigned long *capacity,*blksz;
1153 ccb *pccb = &usb_ccb;
1154
1155 /* for some reasons a couple of devices would not survive this reset */
1156 if (
1157 /* Sony USM256E */
1158 (dev->descriptor.idVendor == 0x054c &&
1159 dev->descriptor.idProduct == 0x019e)
1160
1161 ||
1162 /* USB007 Mini-USB2 Flash Drive */
1163 (dev->descriptor.idVendor == 0x066f &&
1164 dev->descriptor.idProduct == 0x2010)
1165 ||
1166 /* SanDisk Corporation Cruzer Micro 20044318410546613953 */
1167 (dev->descriptor.idVendor == 0x0781 &&
1168 dev->descriptor.idProduct == 0x5151)
1169 )
1170 USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\n");
1171 else
1172 ss->transport_reset(ss);
1173
1174 pccb->pdata = usb_stor_buf;
1175
1176 dev_desc->target = dev->devnum;
1177 pccb->lun = dev_desc->lun;
1178 USB_STOR_PRINTF(" address %d\n",dev_desc->target);
1179
1180 if(usb_inquiry(pccb,ss))
1181 return -1;
1182
1183 perq = usb_stor_buf[0];
1184 modi = usb_stor_buf[1];
1185 if((perq & 0x1f) == 0x1f) {
1186 return 0; /* skip unknown devices */
1187 }
1188 if((modi&0x80) == 0x80) {/* drive is removable */
1189 dev_desc->removable = 1;
1190 }
1191 memcpy(&dev_desc->vendor[0], &usb_stor_buf[8], 8);
1192 memcpy(&dev_desc->product[0], &usb_stor_buf[16], 16);
1193 memcpy(&dev_desc->revision[0], &usb_stor_buf[32], 4);
1194 dev_desc->vendor[8] = 0;
1195 dev_desc->product[16] = 0;
1196 dev_desc->revision[4] = 0;
1197 #ifdef CONFIG_USB_BIN_FIXUP
1198 usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor, (uchar *)dev_desc->product);
1199 #endif /* CONFIG_USB_BIN_FIXUP */
1200 USB_STOR_PRINTF("ISO Vers %X, Response Data %X\n",usb_stor_buf[2],usb_stor_buf[3]);
1201 if(usb_test_unit_ready(pccb,ss)) {
1202 printf("Device NOT ready\n Request Sense returned %02X %02X %02X\n",pccb->sense_buf[2],pccb->sense_buf[12],pccb->sense_buf[13]);
1203 if(dev_desc->removable == 1) {
1204 dev_desc->type = perq;
1205 return 1;
1206 }
1207 else
1208 return 0;
1209 }
1210 pccb->pdata = (unsigned char *)&cap[0];
1211 memset(pccb->pdata,0,8);
1212 if(usb_read_capacity(pccb,ss) != 0) {
1213 printf("READ_CAP ERROR\n");
1214 cap[0] = 2880;
1215 cap[1] = 0x200;
1216 }
1217 USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\n",cap[0],cap[1]);
1218 #if 0
1219 if(cap[0]>(0x200000 * 10)) /* greater than 10 GByte */
1220 cap[0]>>=16;
1221 #endif
1222 #ifdef LITTLEENDIAN
1223 cap[0] = ((unsigned long)(
1224 (((unsigned long)(cap[0]) & (unsigned long)0x000000ffUL) << 24) |
1225 (((unsigned long)(cap[0]) & (unsigned long)0x0000ff00UL) << 8) |
1226 (((unsigned long)(cap[0]) & (unsigned long)0x00ff0000UL) >> 8) |
1227 (((unsigned long)(cap[0]) & (unsigned long)0xff000000UL) >> 24) ));
1228 cap[1] = ((unsigned long)(
1229 (((unsigned long)(cap[1]) & (unsigned long)0x000000ffUL) << 24) |
1230 (((unsigned long)(cap[1]) & (unsigned long)0x0000ff00UL) << 8) |
1231 (((unsigned long)(cap[1]) & (unsigned long)0x00ff0000UL) >> 8) |
1232 (((unsigned long)(cap[1]) & (unsigned long)0xff000000UL) >> 24) ));
1233 #endif
1234 /* this assumes bigendian! */
1235 cap[0] += 1;
1236 capacity = &cap[0];
1237 blksz = &cap[1];
1238 USB_STOR_PRINTF("Capacity = 0x%lx, blocksz = 0x%lx\n",*capacity,*blksz);
1239 dev_desc->lba = *capacity;
1240 dev_desc->blksz = *blksz;
1241 dev_desc->type = perq;
1242 USB_STOR_PRINTF(" address %d\n",dev_desc->target);
1243 USB_STOR_PRINTF("partype: %d\n",dev_desc->part_type);
1244
1245 init_part(dev_desc);
1246
1247 USB_STOR_PRINTF("partype: %d\n",dev_desc->part_type);
1248 return 1;
1249 }
1250
1251 #endif /* CONFIG_USB_STORAGE */
1252 #endif
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