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 */ 49 50 51 #include <common.h> 52 #include <command.h> 53 #include <asm/byteorder.h> 54 #include <asm/processor.h> 55 56 #include <part.h> 57 #include <usb.h> 58 59 #undef USB_STOR_DEBUG 60 #undef BBB_COMDAT_TRACE 61 #undef BBB_XPORT_TRACE 62 63 #ifdef USB_STOR_DEBUG 64 #define USB_STOR_PRINTF(fmt, args...) printf(fmt , ##args) 65 #else 66 #define USB_STOR_PRINTF(fmt, args...) 67 #endif 68 69 #include <scsi.h> 70 /* direction table -- this indicates the direction of the data 71 * transfer for each command code -- a 1 indicates input 72 */ 73 unsigned char us_direction[256/8] = { 74 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77, 75 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 76 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 77 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 78 }; 79 #define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1) 80 81 static unsigned char usb_stor_buf[512]; 82 static ccb usb_ccb; 83 84 /* 85 * CBI style 86 */ 87 88 #define US_CBI_ADSC 0 89 90 /* 91 * BULK only 92 */ 93 #define US_BBB_RESET 0xff 94 #define US_BBB_GET_MAX_LUN 0xfe 95 96 /* Command Block Wrapper */ 97 typedef struct { 98 __u32 dCBWSignature; 99 # define CBWSIGNATURE 0x43425355 100 __u32 dCBWTag; 101 __u32 dCBWDataTransferLength; 102 __u8 bCBWFlags; 103 # define CBWFLAGS_OUT 0x00 104 # define CBWFLAGS_IN 0x80 105 __u8 bCBWLUN; 106 __u8 bCDBLength; 107 # define CBWCDBLENGTH 16 108 __u8 CBWCDB[CBWCDBLENGTH]; 109 } umass_bbb_cbw_t; 110 #define UMASS_BBB_CBW_SIZE 31 111 static __u32 CBWTag; 112 113 /* Command Status Wrapper */ 114 typedef struct { 115 __u32 dCSWSignature; 116 # define CSWSIGNATURE 0x53425355 117 __u32 dCSWTag; 118 __u32 dCSWDataResidue; 119 __u8 bCSWStatus; 120 # define CSWSTATUS_GOOD 0x0 121 # define CSWSTATUS_FAILED 0x1 122 # define CSWSTATUS_PHASE 0x2 123 } umass_bbb_csw_t; 124 #define UMASS_BBB_CSW_SIZE 13 125 126 #define USB_MAX_STOR_DEV 5 127 static int usb_max_devs; /* number of highest available usb device */ 128 129 static block_dev_desc_t usb_dev_desc[USB_MAX_STOR_DEV]; 130 131 struct us_data; 132 typedef int (*trans_cmnd)(ccb *cb, struct us_data *data); 133 typedef int (*trans_reset)(struct us_data *data); 134 135 struct us_data { 136 struct usb_device *pusb_dev; /* this usb_device */ 137 138 unsigned int flags; /* from filter initially */ 139 unsigned char ifnum; /* interface number */ 140 unsigned char ep_in; /* in endpoint */ 141 unsigned char ep_out; /* out ....... */ 142 unsigned char ep_int; /* interrupt . */ 143 unsigned char subclass; /* as in overview */ 144 unsigned char protocol; /* .............. */ 145 unsigned char attention_done; /* force attn on first cmd */ 146 unsigned short ip_data; /* interrupt data */ 147 int action; /* what to do */ 148 int ip_wanted; /* needed */ 149 int *irq_handle; /* for USB int requests */ 150 unsigned int irqpipe; /* pipe for release_irq */ 151 unsigned char irqmaxp; /* max packed for irq Pipe */ 152 unsigned char irqinterval; /* Intervall for IRQ Pipe */ 153 ccb *srb; /* current srb */ 154 trans_reset transport_reset; /* reset routine */ 155 trans_cmnd transport; /* transport routine */ 156 }; 157 158 static struct us_data usb_stor[USB_MAX_STOR_DEV]; 159 160 161 #define USB_STOR_TRANSPORT_GOOD 0 162 #define USB_STOR_TRANSPORT_FAILED -1 163 #define USB_STOR_TRANSPORT_ERROR -2 164 165 int usb_stor_get_info(struct usb_device *dev, struct us_data *us, 166 block_dev_desc_t *dev_desc); 167 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, 168 struct us_data *ss); 169 unsigned long usb_stor_read(int device, unsigned long blknr, 170 unsigned long blkcnt, void *buffer); 171 struct usb_device * usb_get_dev_index(int index); 172 void uhci_show_temp_int_td(void); 173 174 block_dev_desc_t *usb_stor_get_dev(int index) 175 { 176 return (index < USB_MAX_STOR_DEV) ? &usb_dev_desc[index] : NULL; 177 } 178 179 180 void usb_show_progress(void) 181 { 182 printf("."); 183 } 184 185 /******************************************************************************* 186 * show info on storage devices; 'usb start/init' must be invoked earlier 187 * as we only retrieve structures populated during devices initialization 188 */ 189 int usb_stor_info(void) 190 { 191 int i; 192 193 if (usb_max_devs > 0) { 194 for (i = 0; i < usb_max_devs; i++) { 195 printf(" Device %d: ", i); 196 dev_print(&usb_dev_desc[i]); 197 } 198 return 0; 199 } 200 201 printf("No storage devices, perhaps not 'usb start'ed..?\n"); 202 return 1; 203 } 204 205 /******************************************************************************* 206 * scan the usb and reports device info 207 * to the user if mode = 1 208 * returns current device or -1 if no 209 */ 210 int usb_stor_scan(int mode) 211 { 212 unsigned char i; 213 struct usb_device *dev; 214 215 /* GJ */ 216 memset(usb_stor_buf, 0, sizeof(usb_stor_buf)); 217 218 if (mode == 1) 219 printf(" scanning bus for storage devices... "); 220 221 usb_disable_asynch(1); /* asynch transfer not allowed */ 222 223 for (i = 0; i < USB_MAX_STOR_DEV; i++) { 224 memset(&usb_dev_desc[i], 0, sizeof(block_dev_desc_t)); 225 usb_dev_desc[i].target = 0xff; 226 usb_dev_desc[i].if_type = IF_TYPE_USB; 227 usb_dev_desc[i].dev = i; 228 usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN; 229 usb_dev_desc[i].block_read = usb_stor_read; 230 } 231 232 usb_max_devs = 0; 233 for (i = 0; i < USB_MAX_DEVICE; i++) { 234 dev = usb_get_dev_index(i); /* get device */ 235 USB_STOR_PRINTF("i=%d\n", i); 236 if (dev == NULL) 237 break; /* no more devices avaiable */ 238 239 if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { 240 /* ok, it is a storage devices 241 * get info and fill it in 242 */ 243 if (usb_stor_get_info(dev, &usb_stor[usb_max_devs], 244 &usb_dev_desc[usb_max_devs])) 245 usb_max_devs++; 246 } 247 /* if storage device */ 248 if (usb_max_devs == USB_MAX_STOR_DEV) { 249 printf("max USB Storage Device reached: %d stopping\n", 250 usb_max_devs); 251 break; 252 } 253 } /* for */ 254 255 usb_disable_asynch(0); /* asynch transfer allowed */ 256 printf("%d Storage Device(s) found\n", usb_max_devs); 257 if (usb_max_devs > 0) 258 return 0; 259 return -1; 260 } 261 262 static int usb_stor_irq(struct usb_device *dev) 263 { 264 struct us_data *us; 265 us = (struct us_data *)dev->privptr; 266 267 if (us->ip_wanted) 268 us->ip_wanted = 0; 269 return 0; 270 } 271 272 273 #ifdef USB_STOR_DEBUG 274 275 static void usb_show_srb(ccb *pccb) 276 { 277 int i; 278 printf("SRB: len %d datalen 0x%lX\n ", pccb->cmdlen, pccb->datalen); 279 for (i = 0; i < 12; i++) 280 printf("%02X ", pccb->cmd[i]); 281 printf("\n"); 282 } 283 284 static void display_int_status(unsigned long tmp) 285 { 286 printf("Status: %s %s %s %s %s %s %s\n", 287 (tmp & USB_ST_ACTIVE) ? "Active" : "", 288 (tmp & USB_ST_STALLED) ? "Stalled" : "", 289 (tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "", 290 (tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "", 291 (tmp & USB_ST_NAK_REC) ? "NAKed" : "", 292 (tmp & USB_ST_CRC_ERR) ? "CRC Error" : "", 293 (tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : ""); 294 } 295 #endif 296 /*********************************************************************** 297 * Data transfer routines 298 ***********************************************************************/ 299 300 static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length) 301 { 302 int max_size; 303 int this_xfer; 304 int result; 305 int partial; 306 int maxtry; 307 int stat; 308 309 /* determine the maximum packet size for these transfers */ 310 max_size = usb_maxpacket(us->pusb_dev, pipe) * 16; 311 312 /* while we have data left to transfer */ 313 while (length) { 314 315 /* calculate how long this will be -- maximum or a remainder */ 316 this_xfer = length > max_size ? max_size : length; 317 length -= this_xfer; 318 319 /* setup the retry counter */ 320 maxtry = 10; 321 322 /* set up the transfer loop */ 323 do { 324 /* transfer the data */ 325 USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\n", 326 (unsigned int)buf, this_xfer, 11 - maxtry); 327 result = usb_bulk_msg(us->pusb_dev, pipe, buf, 328 this_xfer, &partial, 329 USB_CNTL_TIMEOUT * 5); 330 USB_STOR_PRINTF("bulk_msg returned %d xferred %d/%d\n", 331 result, partial, this_xfer); 332 if (us->pusb_dev->status != 0) { 333 /* if we stall, we need to clear it before 334 * we go on 335 */ 336 #ifdef USB_STOR_DEBUG 337 display_int_status(us->pusb_dev->status); 338 #endif 339 if (us->pusb_dev->status & USB_ST_STALLED) { 340 USB_STOR_PRINTF("stalled ->clearing endpoint halt for pipe 0x%x\n", pipe); 341 stat = us->pusb_dev->status; 342 usb_clear_halt(us->pusb_dev, pipe); 343 us->pusb_dev->status = stat; 344 if (this_xfer == partial) { 345 USB_STOR_PRINTF("bulk transferred with error %X, but data ok\n", us->pusb_dev->status); 346 return 0; 347 } 348 else 349 return result; 350 } 351 if (us->pusb_dev->status & USB_ST_NAK_REC) { 352 USB_STOR_PRINTF("Device NAKed bulk_msg\n"); 353 return result; 354 } 355 USB_STOR_PRINTF("bulk transferred with error"); 356 if (this_xfer == partial) { 357 USB_STOR_PRINTF(" %d, but data ok\n", 358 us->pusb_dev->status); 359 return 0; 360 } 361 /* if our try counter reaches 0, bail out */ 362 USB_STOR_PRINTF(" %d, data %d\n", 363 us->pusb_dev->status, partial); 364 if (!maxtry--) 365 return result; 366 } 367 /* update to show what data was transferred */ 368 this_xfer -= partial; 369 buf += partial; 370 /* continue until this transfer is done */ 371 } while (this_xfer); 372 } 373 374 /* if we get here, we're done and successful */ 375 return 0; 376 } 377 378 static int usb_stor_BBB_reset(struct us_data *us) 379 { 380 int result; 381 unsigned int pipe; 382 383 /* 384 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class) 385 * 386 * For Reset Recovery the host shall issue in the following order: 387 * a) a Bulk-Only Mass Storage Reset 388 * b) a Clear Feature HALT to the Bulk-In endpoint 389 * c) a Clear Feature HALT to the Bulk-Out endpoint 390 * 391 * This is done in 3 steps. 392 * 393 * If the reset doesn't succeed, the device should be port reset. 394 * 395 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c. 396 */ 397 USB_STOR_PRINTF("BBB_reset\n"); 398 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 399 US_BBB_RESET, 400 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 401 0, us->ifnum, 0, 0, USB_CNTL_TIMEOUT * 5); 402 403 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { 404 USB_STOR_PRINTF("RESET:stall\n"); 405 return -1; 406 } 407 408 /* long wait for reset */ 409 wait_ms(150); 410 USB_STOR_PRINTF("BBB_reset result %d: status %X reset\n", result, 411 us->pusb_dev->status); 412 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 413 result = usb_clear_halt(us->pusb_dev, pipe); 414 /* long wait for reset */ 415 wait_ms(150); 416 USB_STOR_PRINTF("BBB_reset result %d: status %X clearing IN endpoint\n", 417 result, us->pusb_dev->status); 418 /* long wait for reset */ 419 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 420 result = usb_clear_halt(us->pusb_dev, pipe); 421 wait_ms(150); 422 USB_STOR_PRINTF("BBB_reset result %d: status %X" 423 " clearing OUT endpoint\n", result, 424 us->pusb_dev->status); 425 USB_STOR_PRINTF("BBB_reset done\n"); 426 return 0; 427 } 428 429 /* FIXME: this reset function doesn't really reset the port, and it 430 * should. Actually it should probably do what it's doing here, and 431 * reset the port physically 432 */ 433 static int usb_stor_CB_reset(struct us_data *us) 434 { 435 unsigned char cmd[12]; 436 int result; 437 438 USB_STOR_PRINTF("CB_reset\n"); 439 memset(cmd, 0xff, sizeof(cmd)); 440 cmd[0] = SCSI_SEND_DIAG; 441 cmd[1] = 4; 442 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 443 US_CBI_ADSC, 444 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 445 0, us->ifnum, cmd, sizeof(cmd), 446 USB_CNTL_TIMEOUT * 5); 447 448 /* long wait for reset */ 449 wait_ms(1500); 450 USB_STOR_PRINTF("CB_reset result %d: status %X" 451 " clearing endpoint halt\n", result, 452 us->pusb_dev->status); 453 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in)); 454 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out)); 455 456 USB_STOR_PRINTF("CB_reset done\n"); 457 return 0; 458 } 459 460 /* 461 * Set up the command for a BBB device. Note that the actual SCSI 462 * command is copied into cbw.CBWCDB. 463 */ 464 int usb_stor_BBB_comdat(ccb *srb, struct us_data *us) 465 { 466 int result; 467 int actlen; 468 int dir_in; 469 unsigned int pipe; 470 umass_bbb_cbw_t cbw; 471 472 dir_in = US_DIRECTION(srb->cmd[0]); 473 474 #ifdef BBB_COMDAT_TRACE 475 printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\n", 476 dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, 477 srb->pdata); 478 if (srb->cmdlen) { 479 for (result = 0; result < srb->cmdlen; result++) 480 printf("cmd[%d] %#x ", result, srb->cmd[result]); 481 printf("\n"); 482 } 483 #endif 484 /* sanity checks */ 485 if (!(srb->cmdlen <= CBWCDBLENGTH)) { 486 USB_STOR_PRINTF("usb_stor_BBB_comdat:cmdlen too large\n"); 487 return -1; 488 } 489 490 /* always OUT to the ep */ 491 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 492 493 cbw.dCBWSignature = cpu_to_le32(CBWSIGNATURE); 494 cbw.dCBWTag = cpu_to_le32(CBWTag++); 495 cbw.dCBWDataTransferLength = cpu_to_le32(srb->datalen); 496 cbw.bCBWFlags = (dir_in ? CBWFLAGS_IN : CBWFLAGS_OUT); 497 cbw.bCBWLUN = srb->lun; 498 cbw.bCDBLength = srb->cmdlen; 499 /* copy the command data into the CBW command data buffer */ 500 /* DST SRC LEN!!! */ 501 memcpy(cbw.CBWCDB, srb->cmd, srb->cmdlen); 502 result = usb_bulk_msg(us->pusb_dev, pipe, &cbw, UMASS_BBB_CBW_SIZE, 503 &actlen, USB_CNTL_TIMEOUT * 5); 504 if (result < 0) 505 USB_STOR_PRINTF("usb_stor_BBB_comdat:usb_bulk_msg error\n"); 506 return result; 507 } 508 509 /* FIXME: we also need a CBI_command which sets up the completion 510 * interrupt, and waits for it 511 */ 512 int usb_stor_CB_comdat(ccb *srb, struct us_data *us) 513 { 514 int result = 0; 515 int dir_in, retry; 516 unsigned int pipe; 517 unsigned long status; 518 519 retry = 5; 520 dir_in = US_DIRECTION(srb->cmd[0]); 521 522 if (dir_in) 523 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 524 else 525 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 526 527 while (retry--) { 528 USB_STOR_PRINTF("CBI gets a command: Try %d\n", 5 - retry); 529 #ifdef USB_STOR_DEBUG 530 usb_show_srb(srb); 531 #endif 532 /* let's send the command via the control pipe */ 533 result = usb_control_msg(us->pusb_dev, 534 usb_sndctrlpipe(us->pusb_dev , 0), 535 US_CBI_ADSC, 536 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 537 0, us->ifnum, 538 srb->cmd, srb->cmdlen, 539 USB_CNTL_TIMEOUT * 5); 540 USB_STOR_PRINTF("CB_transport: control msg returned %d," 541 " status %X\n", result, us->pusb_dev->status); 542 /* check the return code for the command */ 543 if (result < 0) { 544 if (us->pusb_dev->status & USB_ST_STALLED) { 545 status = us->pusb_dev->status; 546 USB_STOR_PRINTF(" stall during command found," 547 " clear pipe\n"); 548 usb_clear_halt(us->pusb_dev, 549 usb_sndctrlpipe(us->pusb_dev, 0)); 550 us->pusb_dev->status = status; 551 } 552 USB_STOR_PRINTF(" error during command %02X" 553 " Stat = %X\n", srb->cmd[0], 554 us->pusb_dev->status); 555 return result; 556 } 557 /* transfer the data payload for this command, if one exists*/ 558 559 USB_STOR_PRINTF("CB_transport: control msg returned %d," 560 " direction is %s to go 0x%lx\n", result, 561 dir_in ? "IN" : "OUT", srb->datalen); 562 if (srb->datalen) { 563 result = us_one_transfer(us, pipe, (char *)srb->pdata, 564 srb->datalen); 565 USB_STOR_PRINTF("CBI attempted to transfer data," 566 " result is %d status %lX, len %d\n", 567 result, us->pusb_dev->status, 568 us->pusb_dev->act_len); 569 if (!(us->pusb_dev->status & USB_ST_NAK_REC)) 570 break; 571 } /* if (srb->datalen) */ 572 else 573 break; 574 } 575 /* return result */ 576 577 return result; 578 } 579 580 581 int usb_stor_CBI_get_status(ccb *srb, struct us_data *us) 582 { 583 int timeout; 584 585 us->ip_wanted = 1; 586 submit_int_msg(us->pusb_dev, us->irqpipe, 587 (void *) &us->ip_data, us->irqmaxp, us->irqinterval); 588 timeout = 1000; 589 while (timeout--) { 590 if ((volatile int *) us->ip_wanted == 0) 591 break; 592 wait_ms(10); 593 } 594 if (us->ip_wanted) { 595 printf(" Did not get interrupt on CBI\n"); 596 us->ip_wanted = 0; 597 return USB_STOR_TRANSPORT_ERROR; 598 } 599 USB_STOR_PRINTF 600 ("Got interrupt data 0x%x, transfered %d status 0x%lX\n", 601 us->ip_data, us->pusb_dev->irq_act_len, 602 us->pusb_dev->irq_status); 603 /* UFI gives us ASC and ASCQ, like a request sense */ 604 if (us->subclass == US_SC_UFI) { 605 if (srb->cmd[0] == SCSI_REQ_SENSE || 606 srb->cmd[0] == SCSI_INQUIRY) 607 return USB_STOR_TRANSPORT_GOOD; /* Good */ 608 else if (us->ip_data) 609 return USB_STOR_TRANSPORT_FAILED; 610 else 611 return USB_STOR_TRANSPORT_GOOD; 612 } 613 /* otherwise, we interpret the data normally */ 614 switch (us->ip_data) { 615 case 0x0001: 616 return USB_STOR_TRANSPORT_GOOD; 617 case 0x0002: 618 return USB_STOR_TRANSPORT_FAILED; 619 default: 620 return USB_STOR_TRANSPORT_ERROR; 621 } /* switch */ 622 return USB_STOR_TRANSPORT_ERROR; 623 } 624 625 #define USB_TRANSPORT_UNKNOWN_RETRY 5 626 #define USB_TRANSPORT_NOT_READY_RETRY 10 627 628 /* clear a stall on an endpoint - special for BBB devices */ 629 int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt) 630 { 631 int result; 632 633 /* ENDPOINT_HALT = 0, so set value to 0 */ 634 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 635 USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 636 0, endpt, 0, 0, USB_CNTL_TIMEOUT * 5); 637 return result; 638 } 639 640 int usb_stor_BBB_transport(ccb *srb, struct us_data *us) 641 { 642 int result, retry; 643 int dir_in; 644 int actlen, data_actlen; 645 unsigned int pipe, pipein, pipeout; 646 umass_bbb_csw_t csw; 647 #ifdef BBB_XPORT_TRACE 648 unsigned char *ptr; 649 int index; 650 #endif 651 652 dir_in = US_DIRECTION(srb->cmd[0]); 653 654 /* COMMAND phase */ 655 USB_STOR_PRINTF("COMMAND phase\n"); 656 result = usb_stor_BBB_comdat(srb, us); 657 if (result < 0) { 658 USB_STOR_PRINTF("failed to send CBW status %ld\n", 659 us->pusb_dev->status); 660 usb_stor_BBB_reset(us); 661 return USB_STOR_TRANSPORT_FAILED; 662 } 663 wait_ms(5); 664 pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 665 pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 666 /* DATA phase + error handling */ 667 data_actlen = 0; 668 /* no data, go immediately to the STATUS phase */ 669 if (srb->datalen == 0) 670 goto st; 671 USB_STOR_PRINTF("DATA phase\n"); 672 if (dir_in) 673 pipe = pipein; 674 else 675 pipe = pipeout; 676 result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen, 677 &data_actlen, USB_CNTL_TIMEOUT * 5); 678 /* special handling of STALL in DATA phase */ 679 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { 680 USB_STOR_PRINTF("DATA:stall\n"); 681 /* clear the STALL on the endpoint */ 682 result = usb_stor_BBB_clear_endpt_stall(us, 683 dir_in ? us->ep_in : us->ep_out); 684 if (result >= 0) 685 /* continue on to STATUS phase */ 686 goto st; 687 } 688 if (result < 0) { 689 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", 690 us->pusb_dev->status); 691 usb_stor_BBB_reset(us); 692 return USB_STOR_TRANSPORT_FAILED; 693 } 694 #ifdef BBB_XPORT_TRACE 695 for (index = 0; index < data_actlen; index++) 696 printf("pdata[%d] %#x ", index, srb->pdata[index]); 697 printf("\n"); 698 #endif 699 /* STATUS phase + error handling */ 700 st: 701 retry = 0; 702 again: 703 USB_STOR_PRINTF("STATUS phase\n"); 704 result = usb_bulk_msg(us->pusb_dev, pipein, &csw, UMASS_BBB_CSW_SIZE, 705 &actlen, USB_CNTL_TIMEOUT*5); 706 707 /* special handling of STALL in STATUS phase */ 708 if ((result < 0) && (retry < 1) && 709 (us->pusb_dev->status & USB_ST_STALLED)) { 710 USB_STOR_PRINTF("STATUS:stall\n"); 711 /* clear the STALL on the endpoint */ 712 result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in); 713 if (result >= 0 && (retry++ < 1)) 714 /* do a retry */ 715 goto again; 716 } 717 if (result < 0) { 718 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", 719 us->pusb_dev->status); 720 usb_stor_BBB_reset(us); 721 return USB_STOR_TRANSPORT_FAILED; 722 } 723 #ifdef BBB_XPORT_TRACE 724 ptr = (unsigned char *)&csw; 725 for (index = 0; index < UMASS_BBB_CSW_SIZE; index++) 726 printf("ptr[%d] %#x ", index, ptr[index]); 727 printf("\n"); 728 #endif 729 /* misuse pipe to get the residue */ 730 pipe = le32_to_cpu(csw.dCSWDataResidue); 731 if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0) 732 pipe = srb->datalen - data_actlen; 733 if (CSWSIGNATURE != le32_to_cpu(csw.dCSWSignature)) { 734 USB_STOR_PRINTF("!CSWSIGNATURE\n"); 735 usb_stor_BBB_reset(us); 736 return USB_STOR_TRANSPORT_FAILED; 737 } else if ((CBWTag - 1) != le32_to_cpu(csw.dCSWTag)) { 738 USB_STOR_PRINTF("!Tag\n"); 739 usb_stor_BBB_reset(us); 740 return USB_STOR_TRANSPORT_FAILED; 741 } else if (csw.bCSWStatus > CSWSTATUS_PHASE) { 742 USB_STOR_PRINTF(">PHASE\n"); 743 usb_stor_BBB_reset(us); 744 return USB_STOR_TRANSPORT_FAILED; 745 } else if (csw.bCSWStatus == CSWSTATUS_PHASE) { 746 USB_STOR_PRINTF("=PHASE\n"); 747 usb_stor_BBB_reset(us); 748 return USB_STOR_TRANSPORT_FAILED; 749 } else if (data_actlen > srb->datalen) { 750 USB_STOR_PRINTF("transferred %dB instead of %dB\n", 751 data_actlen, srb->datalen); 752 return USB_STOR_TRANSPORT_FAILED; 753 } else if (csw.bCSWStatus == CSWSTATUS_FAILED) { 754 USB_STOR_PRINTF("FAILED\n"); 755 return USB_STOR_TRANSPORT_FAILED; 756 } 757 758 return result; 759 } 760 761 int usb_stor_CB_transport(ccb *srb, struct us_data *us) 762 { 763 int result, status; 764 ccb *psrb; 765 ccb reqsrb; 766 int retry, notready; 767 768 psrb = &reqsrb; 769 status = USB_STOR_TRANSPORT_GOOD; 770 retry = 0; 771 notready = 0; 772 /* issue the command */ 773 do_retry: 774 result = usb_stor_CB_comdat(srb, us); 775 USB_STOR_PRINTF("command / Data returned %d, status %X\n", 776 result, us->pusb_dev->status); 777 /* if this is an CBI Protocol, get IRQ */ 778 if (us->protocol == US_PR_CBI) { 779 status = usb_stor_CBI_get_status(srb, us); 780 /* if the status is error, report it */ 781 if (status == USB_STOR_TRANSPORT_ERROR) { 782 USB_STOR_PRINTF(" USB CBI Command Error\n"); 783 return status; 784 } 785 srb->sense_buf[12] = (unsigned char)(us->ip_data >> 8); 786 srb->sense_buf[13] = (unsigned char)(us->ip_data & 0xff); 787 if (!us->ip_data) { 788 /* if the status is good, report it */ 789 if (status == USB_STOR_TRANSPORT_GOOD) { 790 USB_STOR_PRINTF(" USB CBI Command Good\n"); 791 return status; 792 } 793 } 794 } 795 /* do we have to issue an auto request? */ 796 /* HERE we have to check the result */ 797 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { 798 USB_STOR_PRINTF("ERROR %X\n", us->pusb_dev->status); 799 us->transport_reset(us); 800 return USB_STOR_TRANSPORT_ERROR; 801 } 802 if ((us->protocol == US_PR_CBI) && 803 ((srb->cmd[0] == SCSI_REQ_SENSE) || 804 (srb->cmd[0] == SCSI_INQUIRY))) { 805 /* do not issue an autorequest after request sense */ 806 USB_STOR_PRINTF("No auto request and good\n"); 807 return USB_STOR_TRANSPORT_GOOD; 808 } 809 /* issue an request_sense */ 810 memset(&psrb->cmd[0], 0, 12); 811 psrb->cmd[0] = SCSI_REQ_SENSE; 812 psrb->cmd[1] = srb->lun << 5; 813 psrb->cmd[4] = 18; 814 psrb->datalen = 18; 815 psrb->pdata = &srb->sense_buf[0]; 816 psrb->cmdlen = 12; 817 /* issue the command */ 818 result = usb_stor_CB_comdat(psrb, us); 819 USB_STOR_PRINTF("auto request returned %d\n", result); 820 /* if this is an CBI Protocol, get IRQ */ 821 if (us->protocol == US_PR_CBI) 822 status = usb_stor_CBI_get_status(psrb, us); 823 824 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { 825 USB_STOR_PRINTF(" AUTO REQUEST ERROR %d\n", 826 us->pusb_dev->status); 827 return USB_STOR_TRANSPORT_ERROR; 828 } 829 USB_STOR_PRINTF("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n", 830 srb->sense_buf[0], srb->sense_buf[2], 831 srb->sense_buf[12], srb->sense_buf[13]); 832 /* Check the auto request result */ 833 if ((srb->sense_buf[2] == 0) && 834 (srb->sense_buf[12] == 0) && 835 (srb->sense_buf[13] == 0)) { 836 /* ok, no sense */ 837 return USB_STOR_TRANSPORT_GOOD; 838 } 839 840 /* Check the auto request result */ 841 switch (srb->sense_buf[2]) { 842 case 0x01: 843 /* Recovered Error */ 844 return USB_STOR_TRANSPORT_GOOD; 845 break; 846 case 0x02: 847 /* Not Ready */ 848 if (notready++ > USB_TRANSPORT_NOT_READY_RETRY) { 849 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" 850 " 0x%02X (NOT READY)\n", srb->cmd[0], 851 srb->sense_buf[0], srb->sense_buf[2], 852 srb->sense_buf[12], srb->sense_buf[13]); 853 return USB_STOR_TRANSPORT_FAILED; 854 } else { 855 wait_ms(100); 856 goto do_retry; 857 } 858 break; 859 default: 860 if (retry++ > USB_TRANSPORT_UNKNOWN_RETRY) { 861 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" 862 " 0x%02X\n", srb->cmd[0], srb->sense_buf[0], 863 srb->sense_buf[2], srb->sense_buf[12], 864 srb->sense_buf[13]); 865 return USB_STOR_TRANSPORT_FAILED; 866 } else 867 goto do_retry; 868 break; 869 } 870 return USB_STOR_TRANSPORT_FAILED; 871 } 872 873 874 static int usb_inquiry(ccb *srb, struct us_data *ss) 875 { 876 int retry, i; 877 retry = 5; 878 do { 879 memset(&srb->cmd[0], 0, 12); 880 srb->cmd[0] = SCSI_INQUIRY; 881 srb->cmd[1] = srb->lun<<5; 882 srb->cmd[4] = 36; 883 srb->datalen = 36; 884 srb->cmdlen = 12; 885 i = ss->transport(srb, ss); 886 USB_STOR_PRINTF("inquiry returns %d\n", i); 887 if (i == 0) 888 break; 889 } while (retry--); 890 891 if (!retry) { 892 printf("error in inquiry\n"); 893 return -1; 894 } 895 return 0; 896 } 897 898 static int usb_request_sense(ccb *srb, struct us_data *ss) 899 { 900 char *ptr; 901 902 ptr = (char *)srb->pdata; 903 memset(&srb->cmd[0], 0, 12); 904 srb->cmd[0] = SCSI_REQ_SENSE; 905 srb->cmd[1] = srb->lun << 5; 906 srb->cmd[4] = 18; 907 srb->datalen = 18; 908 srb->pdata = &srb->sense_buf[0]; 909 srb->cmdlen = 12; 910 ss->transport(srb, ss); 911 USB_STOR_PRINTF("Request Sense returned %02X %02X %02X\n", 912 srb->sense_buf[2], srb->sense_buf[12], 913 srb->sense_buf[13]); 914 srb->pdata = (uchar *)ptr; 915 return 0; 916 } 917 918 static int usb_test_unit_ready(ccb *srb, struct us_data *ss) 919 { 920 int retries = 10; 921 922 do { 923 memset(&srb->cmd[0], 0, 12); 924 srb->cmd[0] = SCSI_TST_U_RDY; 925 srb->cmd[1] = srb->lun << 5; 926 srb->datalen = 0; 927 srb->cmdlen = 12; 928 if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) 929 return 0; 930 usb_request_sense(srb, ss); 931 wait_ms(100); 932 } while (retries--); 933 934 return -1; 935 } 936 937 static int usb_read_capacity(ccb *srb, struct us_data *ss) 938 { 939 int retry; 940 /* XXX retries */ 941 retry = 3; 942 do { 943 memset(&srb->cmd[0], 0, 12); 944 srb->cmd[0] = SCSI_RD_CAPAC; 945 srb->cmd[1] = srb->lun << 5; 946 srb->datalen = 8; 947 srb->cmdlen = 12; 948 if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) 949 return 0; 950 } while (retry--); 951 952 return -1; 953 } 954 955 static int usb_read_10(ccb *srb, struct us_data *ss, unsigned long start, 956 unsigned short blocks) 957 { 958 memset(&srb->cmd[0], 0, 12); 959 srb->cmd[0] = SCSI_READ10; 960 srb->cmd[1] = srb->lun << 5; 961 srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff; 962 srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff; 963 srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff; 964 srb->cmd[5] = ((unsigned char) (start)) & 0xff; 965 srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff; 966 srb->cmd[8] = (unsigned char) blocks & 0xff; 967 srb->cmdlen = 12; 968 USB_STOR_PRINTF("read10: start %lx blocks %x\n", start, blocks); 969 return ss->transport(srb, ss); 970 } 971 972 973 #ifdef CONFIG_USB_BIN_FIXUP 974 /* 975 * Some USB storage devices queried for SCSI identification data respond with 976 * binary strings, which if output to the console freeze the terminal. The 977 * workaround is to modify the vendor and product strings read from such 978 * device with proper values (as reported by 'usb info'). 979 * 980 * Vendor and product length limits are taken from the definition of 981 * block_dev_desc_t in include/part.h. 982 */ 983 static void usb_bin_fixup(struct usb_device_descriptor descriptor, 984 unsigned char vendor[], 985 unsigned char product[]) { 986 const unsigned char max_vendor_len = 40; 987 const unsigned char max_product_len = 20; 988 if (descriptor.idVendor == 0x0424 && descriptor.idProduct == 0x223a) { 989 strncpy((char *)vendor, "SMSC", max_vendor_len); 990 strncpy((char *)product, "Flash Media Cntrller", 991 max_product_len); 992 } 993 } 994 #endif /* CONFIG_USB_BIN_FIXUP */ 995 996 #define USB_MAX_READ_BLK 20 997 998 unsigned long usb_stor_read(int device, unsigned long blknr, 999 unsigned long blkcnt, void *buffer) 1000 { 1001 unsigned long start, blks, buf_addr; 1002 unsigned short smallblks; 1003 struct usb_device *dev; 1004 int retry, i; 1005 ccb *srb = &usb_ccb; 1006 1007 if (blkcnt == 0) 1008 return 0; 1009 1010 device &= 0xff; 1011 /* Setup device */ 1012 USB_STOR_PRINTF("\nusb_read: dev %d \n", device); 1013 dev = NULL; 1014 for (i = 0; i < USB_MAX_DEVICE; i++) { 1015 dev = usb_get_dev_index(i); 1016 if (dev == NULL) 1017 return 0; 1018 if (dev->devnum == usb_dev_desc[device].target) 1019 break; 1020 } 1021 1022 usb_disable_asynch(1); /* asynch transfer not allowed */ 1023 srb->lun = usb_dev_desc[device].lun; 1024 buf_addr = (unsigned long)buffer; 1025 start = blknr; 1026 blks = blkcnt; 1027 if (usb_test_unit_ready(srb, (struct us_data *)dev->privptr)) { 1028 printf("Device NOT ready\n Request Sense returned %02X %02X" 1029 " %02X\n", srb->sense_buf[2], srb->sense_buf[12], 1030 srb->sense_buf[13]); 1031 return 0; 1032 } 1033 1034 USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx" 1035 " buffer %lx\n", device, start, blks, buf_addr); 1036 1037 do { 1038 /* XXX need some comment here */ 1039 retry = 2; 1040 srb->pdata = (unsigned char *)buf_addr; 1041 if (blks > USB_MAX_READ_BLK) 1042 smallblks = USB_MAX_READ_BLK; 1043 else 1044 smallblks = (unsigned short) blks; 1045 retry_it: 1046 if (smallblks == USB_MAX_READ_BLK) 1047 usb_show_progress(); 1048 srb->datalen = usb_dev_desc[device].blksz * smallblks; 1049 srb->pdata = (unsigned char *)buf_addr; 1050 if (usb_read_10(srb, (struct us_data *)dev->privptr, start, 1051 smallblks)) { 1052 USB_STOR_PRINTF("Read ERROR\n"); 1053 usb_request_sense(srb, (struct us_data *)dev->privptr); 1054 if (retry--) 1055 goto retry_it; 1056 blkcnt -= blks; 1057 break; 1058 } 1059 start += smallblks; 1060 blks -= smallblks; 1061 buf_addr += srb->datalen; 1062 } while (blks != 0); 1063 1064 USB_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\n", 1065 start, smallblks, buf_addr); 1066 1067 usb_disable_asynch(0); /* asynch transfer allowed */ 1068 if (blkcnt >= USB_MAX_READ_BLK) 1069 printf("\n"); 1070 return blkcnt; 1071 } 1072 1073 1074 /* Probe to see if a new device is actually a Storage device */ 1075 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, 1076 struct us_data *ss) 1077 { 1078 struct usb_interface_descriptor *iface; 1079 int i; 1080 unsigned int flags = 0; 1081 1082 int protocol = 0; 1083 int subclass = 0; 1084 1085 /* let's examine the device now */ 1086 iface = &dev->config.if_desc[ifnum]; 1087 1088 #if 0 1089 /* this is the place to patch some storage devices */ 1090 USB_STOR_PRINTF("iVendor %X iProduct %X\n", dev->descriptor.idVendor, 1091 dev->descriptor.idProduct); 1092 1093 if ((dev->descriptor.idVendor) == 0x066b && 1094 (dev->descriptor.idProduct) == 0x0103) { 1095 USB_STOR_PRINTF("patched for E-USB\n"); 1096 protocol = US_PR_CB; 1097 subclass = US_SC_UFI; /* an assumption */ 1098 } 1099 #endif 1100 1101 if (dev->descriptor.bDeviceClass != 0 || 1102 iface->bInterfaceClass != USB_CLASS_MASS_STORAGE || 1103 iface->bInterfaceSubClass < US_SC_MIN || 1104 iface->bInterfaceSubClass > US_SC_MAX) { 1105 /* if it's not a mass storage, we go no further */ 1106 return 0; 1107 } 1108 1109 memset(ss, 0, sizeof(struct us_data)); 1110 1111 /* At this point, we know we've got a live one */ 1112 USB_STOR_PRINTF("\n\nUSB Mass Storage device detected\n"); 1113 1114 /* Initialize the us_data structure with some useful info */ 1115 ss->flags = flags; 1116 ss->ifnum = ifnum; 1117 ss->pusb_dev = dev; 1118 ss->attention_done = 0; 1119 1120 /* If the device has subclass and protocol, then use that. Otherwise, 1121 * take data from the specific interface. 1122 */ 1123 if (subclass) { 1124 ss->subclass = subclass; 1125 ss->protocol = protocol; 1126 } else { 1127 ss->subclass = iface->bInterfaceSubClass; 1128 ss->protocol = iface->bInterfaceProtocol; 1129 } 1130 1131 /* set the handler pointers based on the protocol */ 1132 USB_STOR_PRINTF("Transport: "); 1133 switch (ss->protocol) { 1134 case US_PR_CB: 1135 USB_STOR_PRINTF("Control/Bulk\n"); 1136 ss->transport = usb_stor_CB_transport; 1137 ss->transport_reset = usb_stor_CB_reset; 1138 break; 1139 1140 case US_PR_CBI: 1141 USB_STOR_PRINTF("Control/Bulk/Interrupt\n"); 1142 ss->transport = usb_stor_CB_transport; 1143 ss->transport_reset = usb_stor_CB_reset; 1144 break; 1145 case US_PR_BULK: 1146 USB_STOR_PRINTF("Bulk/Bulk/Bulk\n"); 1147 ss->transport = usb_stor_BBB_transport; 1148 ss->transport_reset = usb_stor_BBB_reset; 1149 break; 1150 default: 1151 printf("USB Storage Transport unknown / not yet implemented\n"); 1152 return 0; 1153 break; 1154 } 1155 1156 /* 1157 * We are expecting a minimum of 2 endpoints - in and out (bulk). 1158 * An optional interrupt is OK (necessary for CBI protocol). 1159 * We will ignore any others. 1160 */ 1161 for (i = 0; i < iface->bNumEndpoints; i++) { 1162 /* is it an BULK endpoint? */ 1163 if ((iface->ep_desc[i].bmAttributes & 1164 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { 1165 if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN) 1166 ss->ep_in = iface->ep_desc[i].bEndpointAddress & 1167 USB_ENDPOINT_NUMBER_MASK; 1168 else 1169 ss->ep_out = 1170 iface->ep_desc[i].bEndpointAddress & 1171 USB_ENDPOINT_NUMBER_MASK; 1172 } 1173 1174 /* is it an interrupt endpoint? */ 1175 if ((iface->ep_desc[i].bmAttributes & 1176 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { 1177 ss->ep_int = iface->ep_desc[i].bEndpointAddress & 1178 USB_ENDPOINT_NUMBER_MASK; 1179 ss->irqinterval = iface->ep_desc[i].bInterval; 1180 } 1181 } 1182 USB_STOR_PRINTF("Endpoints In %d Out %d Int %d\n", 1183 ss->ep_in, ss->ep_out, ss->ep_int); 1184 1185 /* Do some basic sanity checks, and bail if we find a problem */ 1186 if (usb_set_interface(dev, iface->bInterfaceNumber, 0) || 1187 !ss->ep_in || !ss->ep_out || 1188 (ss->protocol == US_PR_CBI && ss->ep_int == 0)) { 1189 USB_STOR_PRINTF("Problems with device\n"); 1190 return 0; 1191 } 1192 /* set class specific stuff */ 1193 /* We only handle certain protocols. Currently, these are 1194 * the only ones. 1195 * The SFF8070 accepts the requests used in u-boot 1196 */ 1197 if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI && 1198 ss->subclass != US_SC_8070) { 1199 printf("Sorry, protocol %d not yet supported.\n", ss->subclass); 1200 return 0; 1201 } 1202 if (ss->ep_int) { 1203 /* we had found an interrupt endpoint, prepare irq pipe 1204 * set up the IRQ pipe and handler 1205 */ 1206 ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255; 1207 ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int); 1208 ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe); 1209 dev->irq_handle = usb_stor_irq; 1210 } 1211 dev->privptr = (void *)ss; 1212 return 1; 1213 } 1214 1215 int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, 1216 block_dev_desc_t *dev_desc) 1217 { 1218 unsigned char perq, modi; 1219 unsigned long cap[2]; 1220 unsigned long *capacity, *blksz; 1221 ccb *pccb = &usb_ccb; 1222 1223 /* for some reasons a couple of devices would not survive this reset */ 1224 if ( 1225 /* Sony USM256E */ 1226 (dev->descriptor.idVendor == 0x054c && 1227 dev->descriptor.idProduct == 0x019e) 1228 || 1229 /* USB007 Mini-USB2 Flash Drive */ 1230 (dev->descriptor.idVendor == 0x066f && 1231 dev->descriptor.idProduct == 0x2010) 1232 || 1233 /* SanDisk Corporation Cruzer Micro 20044318410546613953 */ 1234 (dev->descriptor.idVendor == 0x0781 && 1235 dev->descriptor.idProduct == 0x5151) 1236 || 1237 /* 1238 * SanDisk Corporation U3 Cruzer Micro 1/4GB 1239 * Flash Drive 000016244373FFB4 1240 */ 1241 (dev->descriptor.idVendor == 0x0781 && 1242 dev->descriptor.idProduct == 0x5406) 1243 ) 1244 USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\n"); 1245 else 1246 ss->transport_reset(ss); 1247 1248 pccb->pdata = usb_stor_buf; 1249 1250 dev_desc->target = dev->devnum; 1251 pccb->lun = dev_desc->lun; 1252 USB_STOR_PRINTF(" address %d\n", dev_desc->target); 1253 1254 if (usb_inquiry(pccb, ss)) 1255 return -1; 1256 1257 perq = usb_stor_buf[0]; 1258 modi = usb_stor_buf[1]; 1259 1260 if ((perq & 0x1f) == 0x1f) { 1261 /* skip unknown devices */ 1262 return 0; 1263 } 1264 if ((modi&0x80) == 0x80) { 1265 /* drive is removable */ 1266 dev_desc->removable = 1; 1267 } 1268 memcpy(&dev_desc->vendor[0], &usb_stor_buf[8], 8); 1269 memcpy(&dev_desc->product[0], &usb_stor_buf[16], 16); 1270 memcpy(&dev_desc->revision[0], &usb_stor_buf[32], 4); 1271 dev_desc->vendor[8] = 0; 1272 dev_desc->product[16] = 0; 1273 dev_desc->revision[4] = 0; 1274 #ifdef CONFIG_USB_BIN_FIXUP 1275 usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor, 1276 (uchar *)dev_desc->product); 1277 #endif /* CONFIG_USB_BIN_FIXUP */ 1278 USB_STOR_PRINTF("ISO Vers %X, Response Data %X\n", usb_stor_buf[2], 1279 usb_stor_buf[3]); 1280 if (usb_test_unit_ready(pccb, ss)) { 1281 printf("Device NOT ready\n" 1282 " Request Sense returned %02X %02X %02X\n", 1283 pccb->sense_buf[2], pccb->sense_buf[12], 1284 pccb->sense_buf[13]); 1285 if (dev_desc->removable == 1) { 1286 dev_desc->type = perq; 1287 return 1; 1288 } 1289 return 0; 1290 } 1291 pccb->pdata = (unsigned char *)&cap[0]; 1292 memset(pccb->pdata, 0, 8); 1293 if (usb_read_capacity(pccb, ss) != 0) { 1294 printf("READ_CAP ERROR\n"); 1295 cap[0] = 2880; 1296 cap[1] = 0x200; 1297 } 1298 USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\n", cap[0], 1299 cap[1]); 1300 #if 0 1301 if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */ 1302 cap[0] >>= 16; 1303 #endif 1304 cap[0] = cpu_to_be32(cap[0]); 1305 cap[1] = cpu_to_be32(cap[1]); 1306 1307 /* this assumes bigendian! */ 1308 cap[0] += 1; 1309 capacity = &cap[0]; 1310 blksz = &cap[1]; 1311 USB_STOR_PRINTF("Capacity = 0x%lx, blocksz = 0x%lx\n", 1312 *capacity, *blksz); 1313 dev_desc->lba = *capacity; 1314 dev_desc->blksz = *blksz; 1315 dev_desc->type = perq; 1316 USB_STOR_PRINTF(" address %d\n", dev_desc->target); 1317 USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type); 1318 1319 init_part(dev_desc); 1320 1321 USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type); 1322 return 1; 1323 } 1324