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/byteorder.h> 56 #include <asm/processor.h> 57 58 #include <part.h> 59 #include <usb.h> 60 61 #undef USB_STOR_DEBUG 62 #undef BBB_COMDAT_TRACE 63 #undef BBB_XPORT_TRACE 64 65 #ifdef USB_STOR_DEBUG 66 #define USB_STOR_PRINTF(fmt, args...) printf(fmt , ##args) 67 #else 68 #define USB_STOR_PRINTF(fmt, args...) 69 #endif 70 71 #include <scsi.h> 72 /* direction table -- this indicates the direction of the data 73 * transfer for each command code -- a 1 indicates input 74 */ 75 unsigned char us_direction[256/8] = { 76 0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77, 77 0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 78 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 79 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 80 }; 81 #define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1) 82 83 static unsigned char usb_stor_buf[512]; 84 static ccb usb_ccb; 85 86 /* 87 * CBI style 88 */ 89 90 #define US_CBI_ADSC 0 91 92 /* 93 * BULK only 94 */ 95 #define US_BBB_RESET 0xff 96 #define US_BBB_GET_MAX_LUN 0xfe 97 98 /* Command Block Wrapper */ 99 typedef struct { 100 __u32 dCBWSignature; 101 # define CBWSIGNATURE 0x43425355 102 __u32 dCBWTag; 103 __u32 dCBWDataTransferLength; 104 __u8 bCBWFlags; 105 # define CBWFLAGS_OUT 0x00 106 # define CBWFLAGS_IN 0x80 107 __u8 bCBWLUN; 108 __u8 bCDBLength; 109 # define CBWCDBLENGTH 16 110 __u8 CBWCDB[CBWCDBLENGTH]; 111 } umass_bbb_cbw_t; 112 #define UMASS_BBB_CBW_SIZE 31 113 static __u32 CBWTag; 114 115 /* Command Status Wrapper */ 116 typedef struct { 117 __u32 dCSWSignature; 118 # define CSWSIGNATURE 0x53425355 119 __u32 dCSWTag; 120 __u32 dCSWDataResidue; 121 __u8 bCSWStatus; 122 # define CSWSTATUS_GOOD 0x0 123 # define CSWSTATUS_FAILED 0x1 124 # define CSWSTATUS_PHASE 0x2 125 } umass_bbb_csw_t; 126 #define UMASS_BBB_CSW_SIZE 13 127 128 #define USB_MAX_STOR_DEV 5 129 static int usb_max_devs; /* number of highest available usb device */ 130 131 static block_dev_desc_t usb_dev_desc[USB_MAX_STOR_DEV]; 132 133 struct us_data; 134 typedef int (*trans_cmnd)(ccb *cb, struct us_data *data); 135 typedef int (*trans_reset)(struct us_data *data); 136 137 struct us_data { 138 struct usb_device *pusb_dev; /* this usb_device */ 139 140 unsigned int flags; /* from filter initially */ 141 unsigned char ifnum; /* interface number */ 142 unsigned char ep_in; /* in endpoint */ 143 unsigned char ep_out; /* out ....... */ 144 unsigned char ep_int; /* interrupt . */ 145 unsigned char subclass; /* as in overview */ 146 unsigned char protocol; /* .............. */ 147 unsigned char attention_done; /* force attn on first cmd */ 148 unsigned short ip_data; /* interrupt data */ 149 int action; /* what to do */ 150 int ip_wanted; /* needed */ 151 int *irq_handle; /* for USB int requests */ 152 unsigned int irqpipe; /* pipe for release_irq */ 153 unsigned char irqmaxp; /* max packed for irq Pipe */ 154 unsigned char irqinterval; /* Intervall for IRQ Pipe */ 155 ccb *srb; /* current srb */ 156 trans_reset transport_reset; /* reset routine */ 157 trans_cmnd transport; /* transport routine */ 158 }; 159 160 static struct us_data usb_stor[USB_MAX_STOR_DEV]; 161 162 163 #define USB_STOR_TRANSPORT_GOOD 0 164 #define USB_STOR_TRANSPORT_FAILED -1 165 #define USB_STOR_TRANSPORT_ERROR -2 166 167 int usb_stor_get_info(struct usb_device *dev, struct us_data *us, 168 block_dev_desc_t *dev_desc); 169 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, 170 struct us_data *ss); 171 unsigned long usb_stor_read(int device, unsigned long blknr, 172 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 int 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 return 0; 201 } 202 203 printf("No storage devices, perhaps not 'usb start'ed..?\n"); 204 return 1; 205 } 206 207 /******************************************************************************* 208 * scan the usb and reports device info 209 * to the user if mode = 1 210 * returns current device or -1 if no 211 */ 212 int usb_stor_scan(int mode) 213 { 214 unsigned char i; 215 struct usb_device *dev; 216 217 /* GJ */ 218 memset(usb_stor_buf, 0, sizeof(usb_stor_buf)); 219 220 if (mode == 1) 221 printf(" scanning bus for storage devices... "); 222 223 usb_disable_asynch(1); /* asynch transfer not allowed */ 224 225 for (i = 0; i < USB_MAX_STOR_DEV; i++) { 226 memset(&usb_dev_desc[i], 0, sizeof(block_dev_desc_t)); 227 usb_dev_desc[i].target = 0xff; 228 usb_dev_desc[i].if_type = IF_TYPE_USB; 229 usb_dev_desc[i].dev = i; 230 usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN; 231 usb_dev_desc[i].block_read = usb_stor_read; 232 } 233 234 usb_max_devs = 0; 235 for (i = 0; i < USB_MAX_DEVICE; i++) { 236 dev = usb_get_dev_index(i); /* get device */ 237 USB_STOR_PRINTF("i=%d\n", i); 238 if (dev == NULL) 239 break; /* no more devices avaiable */ 240 241 if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { 242 /* ok, it is a storage devices 243 * get info and fill it in 244 */ 245 if (usb_stor_get_info(dev, &usb_stor[usb_max_devs], 246 &usb_dev_desc[usb_max_devs])) 247 usb_max_devs++; 248 } 249 /* if storage device */ 250 if (usb_max_devs == USB_MAX_STOR_DEV) { 251 printf("max USB Storage Device reached: %d stopping\n", 252 usb_max_devs); 253 break; 254 } 255 } /* for */ 256 257 usb_disable_asynch(0); /* asynch transfer allowed */ 258 printf("%d Storage Device(s) found\n", usb_max_devs); 259 if (usb_max_devs > 0) 260 return 0; 261 return -1; 262 } 263 264 static int usb_stor_irq(struct usb_device *dev) 265 { 266 struct us_data *us; 267 us = (struct us_data *)dev->privptr; 268 269 if (us->ip_wanted) 270 us->ip_wanted = 0; 271 return 0; 272 } 273 274 275 #ifdef USB_STOR_DEBUG 276 277 static void usb_show_srb(ccb *pccb) 278 { 279 int i; 280 printf("SRB: len %d datalen 0x%lX\n ", pccb->cmdlen, pccb->datalen); 281 for (i = 0; i < 12; i++) 282 printf("%02X ", pccb->cmd[i]); 283 printf("\n"); 284 } 285 286 static void display_int_status(unsigned long tmp) 287 { 288 printf("Status: %s %s %s %s %s %s %s\n", 289 (tmp & USB_ST_ACTIVE) ? "Active" : "", 290 (tmp & USB_ST_STALLED) ? "Stalled" : "", 291 (tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "", 292 (tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "", 293 (tmp & USB_ST_NAK_REC) ? "NAKed" : "", 294 (tmp & USB_ST_CRC_ERR) ? "CRC Error" : "", 295 (tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : ""); 296 } 297 #endif 298 /*********************************************************************** 299 * Data transfer routines 300 ***********************************************************************/ 301 302 static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length) 303 { 304 int max_size; 305 int this_xfer; 306 int result; 307 int partial; 308 int maxtry; 309 int stat; 310 311 /* determine the maximum packet size for these transfers */ 312 max_size = usb_maxpacket(us->pusb_dev, pipe) * 16; 313 314 /* while we have data left to transfer */ 315 while (length) { 316 317 /* calculate how long this will be -- maximum or a remainder */ 318 this_xfer = length > max_size ? max_size : length; 319 length -= this_xfer; 320 321 /* setup the retry counter */ 322 maxtry = 10; 323 324 /* set up the transfer loop */ 325 do { 326 /* transfer the data */ 327 USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\n", 328 (unsigned int)buf, this_xfer, 11 - maxtry); 329 result = usb_bulk_msg(us->pusb_dev, pipe, buf, 330 this_xfer, &partial, 331 USB_CNTL_TIMEOUT * 5); 332 USB_STOR_PRINTF("bulk_msg returned %d xferred %d/%d\n", 333 result, partial, this_xfer); 334 if (us->pusb_dev->status != 0) { 335 /* if we stall, we need to clear it before 336 * we go on 337 */ 338 #ifdef USB_STOR_DEBUG 339 display_int_status(us->pusb_dev->status); 340 #endif 341 if (us->pusb_dev->status & USB_ST_STALLED) { 342 USB_STOR_PRINTF("stalled ->clearing endpoint halt for pipe 0x%x\n", pipe); 343 stat = us->pusb_dev->status; 344 usb_clear_halt(us->pusb_dev, pipe); 345 us->pusb_dev->status = stat; 346 if (this_xfer == partial) { 347 USB_STOR_PRINTF("bulk transferred with error %X, but data ok\n", us->pusb_dev->status); 348 return 0; 349 } 350 else 351 return result; 352 } 353 if (us->pusb_dev->status & USB_ST_NAK_REC) { 354 USB_STOR_PRINTF("Device NAKed bulk_msg\n"); 355 return result; 356 } 357 USB_STOR_PRINTF("bulk transferred with error"); 358 if (this_xfer == partial) { 359 USB_STOR_PRINTF(" %d, but data ok\n", 360 us->pusb_dev->status); 361 return 0; 362 } 363 /* if our try counter reaches 0, bail out */ 364 USB_STOR_PRINTF(" %d, data %d\n", 365 us->pusb_dev->status, partial); 366 if (!maxtry--) 367 return result; 368 } 369 /* update to show what data was transferred */ 370 this_xfer -= partial; 371 buf += partial; 372 /* continue until this transfer is done */ 373 } while (this_xfer); 374 } 375 376 /* if we get here, we're done and successful */ 377 return 0; 378 } 379 380 static int usb_stor_BBB_reset(struct us_data *us) 381 { 382 int result; 383 unsigned int pipe; 384 385 /* 386 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class) 387 * 388 * For Reset Recovery the host shall issue in the following order: 389 * a) a Bulk-Only Mass Storage Reset 390 * b) a Clear Feature HALT to the Bulk-In endpoint 391 * c) a Clear Feature HALT to the Bulk-Out endpoint 392 * 393 * This is done in 3 steps. 394 * 395 * If the reset doesn't succeed, the device should be port reset. 396 * 397 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c. 398 */ 399 USB_STOR_PRINTF("BBB_reset\n"); 400 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 401 US_BBB_RESET, 402 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 403 0, us->ifnum, 0, 0, USB_CNTL_TIMEOUT * 5); 404 405 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { 406 USB_STOR_PRINTF("RESET:stall\n"); 407 return -1; 408 } 409 410 /* long wait for reset */ 411 wait_ms(150); 412 USB_STOR_PRINTF("BBB_reset result %d: status %X reset\n", result, 413 us->pusb_dev->status); 414 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 415 result = usb_clear_halt(us->pusb_dev, pipe); 416 /* long wait for reset */ 417 wait_ms(150); 418 USB_STOR_PRINTF("BBB_reset result %d: status %X clearing IN endpoint\n", 419 result, us->pusb_dev->status); 420 /* long wait for reset */ 421 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 422 result = usb_clear_halt(us->pusb_dev, pipe); 423 wait_ms(150); 424 USB_STOR_PRINTF("BBB_reset result %d: status %X" 425 " clearing OUT endpoint\n", result, 426 us->pusb_dev->status); 427 USB_STOR_PRINTF("BBB_reset done\n"); 428 return 0; 429 } 430 431 /* FIXME: this reset function doesn't really reset the port, and it 432 * should. Actually it should probably do what it's doing here, and 433 * reset the port physically 434 */ 435 static int usb_stor_CB_reset(struct us_data *us) 436 { 437 unsigned char cmd[12]; 438 int result; 439 440 USB_STOR_PRINTF("CB_reset\n"); 441 memset(cmd, 0xff, sizeof(cmd)); 442 cmd[0] = SCSI_SEND_DIAG; 443 cmd[1] = 4; 444 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 445 US_CBI_ADSC, 446 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 447 0, us->ifnum, cmd, sizeof(cmd), 448 USB_CNTL_TIMEOUT * 5); 449 450 /* long wait for reset */ 451 wait_ms(1500); 452 USB_STOR_PRINTF("CB_reset result %d: status %X" 453 " clearing endpoint halt\n", result, 454 us->pusb_dev->status); 455 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in)); 456 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out)); 457 458 USB_STOR_PRINTF("CB_reset done\n"); 459 return 0; 460 } 461 462 /* 463 * Set up the command for a BBB device. Note that the actual SCSI 464 * command is copied into cbw.CBWCDB. 465 */ 466 int usb_stor_BBB_comdat(ccb *srb, struct us_data *us) 467 { 468 int result; 469 int actlen; 470 int dir_in; 471 unsigned int pipe; 472 umass_bbb_cbw_t cbw; 473 474 dir_in = US_DIRECTION(srb->cmd[0]); 475 476 #ifdef BBB_COMDAT_TRACE 477 printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\n", 478 dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, 479 srb->pdata); 480 if (srb->cmdlen) { 481 for (result = 0; result < srb->cmdlen; result++) 482 printf("cmd[%d] %#x ", result, srb->cmd[result]); 483 printf("\n"); 484 } 485 #endif 486 /* sanity checks */ 487 if (!(srb->cmdlen <= CBWCDBLENGTH)) { 488 USB_STOR_PRINTF("usb_stor_BBB_comdat:cmdlen too large\n"); 489 return -1; 490 } 491 492 /* always OUT to the ep */ 493 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 494 495 cbw.dCBWSignature = cpu_to_le32(CBWSIGNATURE); 496 cbw.dCBWTag = cpu_to_le32(CBWTag++); 497 cbw.dCBWDataTransferLength = cpu_to_le32(srb->datalen); 498 cbw.bCBWFlags = (dir_in ? CBWFLAGS_IN : CBWFLAGS_OUT); 499 cbw.bCBWLUN = srb->lun; 500 cbw.bCDBLength = srb->cmdlen; 501 /* copy the command data into the CBW command data buffer */ 502 /* DST SRC LEN!!! */ 503 memcpy(cbw.CBWCDB, srb->cmd, srb->cmdlen); 504 result = usb_bulk_msg(us->pusb_dev, pipe, &cbw, UMASS_BBB_CBW_SIZE, 505 &actlen, USB_CNTL_TIMEOUT * 5); 506 if (result < 0) 507 USB_STOR_PRINTF("usb_stor_BBB_comdat:usb_bulk_msg error\n"); 508 return result; 509 } 510 511 /* FIXME: we also need a CBI_command which sets up the completion 512 * interrupt, and waits for it 513 */ 514 int usb_stor_CB_comdat(ccb *srb, struct us_data *us) 515 { 516 int result = 0; 517 int dir_in, retry; 518 unsigned int pipe; 519 unsigned long status; 520 521 retry = 5; 522 dir_in = US_DIRECTION(srb->cmd[0]); 523 524 if (dir_in) 525 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 526 else 527 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 528 529 while (retry--) { 530 USB_STOR_PRINTF("CBI gets a command: Try %d\n", 5 - retry); 531 #ifdef USB_STOR_DEBUG 532 usb_show_srb(srb); 533 #endif 534 /* let's send the command via the control pipe */ 535 result = usb_control_msg(us->pusb_dev, 536 usb_sndctrlpipe(us->pusb_dev , 0), 537 US_CBI_ADSC, 538 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 539 0, us->ifnum, 540 srb->cmd, srb->cmdlen, 541 USB_CNTL_TIMEOUT * 5); 542 USB_STOR_PRINTF("CB_transport: control msg returned %d," 543 " status %X\n", result, us->pusb_dev->status); 544 /* check the return code for the command */ 545 if (result < 0) { 546 if (us->pusb_dev->status & USB_ST_STALLED) { 547 status = us->pusb_dev->status; 548 USB_STOR_PRINTF(" stall during command found," 549 " clear pipe\n"); 550 usb_clear_halt(us->pusb_dev, 551 usb_sndctrlpipe(us->pusb_dev, 0)); 552 us->pusb_dev->status = status; 553 } 554 USB_STOR_PRINTF(" error during command %02X" 555 " Stat = %X\n", srb->cmd[0], 556 us->pusb_dev->status); 557 return result; 558 } 559 /* transfer the data payload for this command, if one exists*/ 560 561 USB_STOR_PRINTF("CB_transport: control msg returned %d," 562 " direction is %s to go 0x%lx\n", result, 563 dir_in ? "IN" : "OUT", srb->datalen); 564 if (srb->datalen) { 565 result = us_one_transfer(us, pipe, (char *)srb->pdata, 566 srb->datalen); 567 USB_STOR_PRINTF("CBI attempted to transfer data," 568 " result is %d status %lX, len %d\n", 569 result, us->pusb_dev->status, 570 us->pusb_dev->act_len); 571 if (!(us->pusb_dev->status & USB_ST_NAK_REC)) 572 break; 573 } /* if (srb->datalen) */ 574 else 575 break; 576 } 577 /* return result */ 578 579 return result; 580 } 581 582 583 int usb_stor_CBI_get_status(ccb *srb, struct us_data *us) 584 { 585 int timeout; 586 587 us->ip_wanted = 1; 588 submit_int_msg(us->pusb_dev, us->irqpipe, 589 (void *) &us->ip_data, us->irqmaxp, us->irqinterval); 590 timeout = 1000; 591 while (timeout--) { 592 if ((volatile int *) us->ip_wanted == 0) 593 break; 594 wait_ms(10); 595 } 596 if (us->ip_wanted) { 597 printf(" Did not get interrupt on CBI\n"); 598 us->ip_wanted = 0; 599 return USB_STOR_TRANSPORT_ERROR; 600 } 601 USB_STOR_PRINTF 602 ("Got interrupt data 0x%x, transfered %d status 0x%lX\n", 603 us->ip_data, us->pusb_dev->irq_act_len, 604 us->pusb_dev->irq_status); 605 /* UFI gives us ASC and ASCQ, like a request sense */ 606 if (us->subclass == US_SC_UFI) { 607 if (srb->cmd[0] == SCSI_REQ_SENSE || 608 srb->cmd[0] == SCSI_INQUIRY) 609 return USB_STOR_TRANSPORT_GOOD; /* Good */ 610 else if (us->ip_data) 611 return USB_STOR_TRANSPORT_FAILED; 612 else 613 return USB_STOR_TRANSPORT_GOOD; 614 } 615 /* otherwise, we interpret the data normally */ 616 switch (us->ip_data) { 617 case 0x0001: 618 return USB_STOR_TRANSPORT_GOOD; 619 case 0x0002: 620 return USB_STOR_TRANSPORT_FAILED; 621 default: 622 return USB_STOR_TRANSPORT_ERROR; 623 } /* switch */ 624 return USB_STOR_TRANSPORT_ERROR; 625 } 626 627 #define USB_TRANSPORT_UNKNOWN_RETRY 5 628 #define USB_TRANSPORT_NOT_READY_RETRY 10 629 630 /* clear a stall on an endpoint - special for BBB devices */ 631 int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt) 632 { 633 int result; 634 635 /* ENDPOINT_HALT = 0, so set value to 0 */ 636 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 637 USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 638 0, endpt, 0, 0, USB_CNTL_TIMEOUT * 5); 639 return result; 640 } 641 642 int usb_stor_BBB_transport(ccb *srb, struct us_data *us) 643 { 644 int result, retry; 645 int dir_in; 646 int actlen, data_actlen; 647 unsigned int pipe, pipein, pipeout; 648 umass_bbb_csw_t csw; 649 #ifdef BBB_XPORT_TRACE 650 unsigned char *ptr; 651 int index; 652 #endif 653 654 dir_in = US_DIRECTION(srb->cmd[0]); 655 656 /* COMMAND phase */ 657 USB_STOR_PRINTF("COMMAND phase\n"); 658 result = usb_stor_BBB_comdat(srb, us); 659 if (result < 0) { 660 USB_STOR_PRINTF("failed to send CBW status %ld\n", 661 us->pusb_dev->status); 662 usb_stor_BBB_reset(us); 663 return USB_STOR_TRANSPORT_FAILED; 664 } 665 wait_ms(5); 666 pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 667 pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 668 /* DATA phase + error handling */ 669 data_actlen = 0; 670 /* no data, go immediately to the STATUS phase */ 671 if (srb->datalen == 0) 672 goto st; 673 USB_STOR_PRINTF("DATA phase\n"); 674 if (dir_in) 675 pipe = pipein; 676 else 677 pipe = pipeout; 678 result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen, 679 &data_actlen, USB_CNTL_TIMEOUT * 5); 680 /* special handling of STALL in DATA phase */ 681 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { 682 USB_STOR_PRINTF("DATA:stall\n"); 683 /* clear the STALL on the endpoint */ 684 result = usb_stor_BBB_clear_endpt_stall(us, 685 dir_in ? us->ep_in : us->ep_out); 686 if (result >= 0) 687 /* continue on to STATUS phase */ 688 goto st; 689 } 690 if (result < 0) { 691 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", 692 us->pusb_dev->status); 693 usb_stor_BBB_reset(us); 694 return USB_STOR_TRANSPORT_FAILED; 695 } 696 #ifdef BBB_XPORT_TRACE 697 for (index = 0; index < data_actlen; index++) 698 printf("pdata[%d] %#x ", index, srb->pdata[index]); 699 printf("\n"); 700 #endif 701 /* STATUS phase + error handling */ 702 st: 703 retry = 0; 704 again: 705 USB_STOR_PRINTF("STATUS phase\n"); 706 result = usb_bulk_msg(us->pusb_dev, pipein, &csw, UMASS_BBB_CSW_SIZE, 707 &actlen, USB_CNTL_TIMEOUT*5); 708 709 /* special handling of STALL in STATUS phase */ 710 if ((result < 0) && (retry < 1) && 711 (us->pusb_dev->status & USB_ST_STALLED)) { 712 USB_STOR_PRINTF("STATUS:stall\n"); 713 /* clear the STALL on the endpoint */ 714 result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in); 715 if (result >= 0 && (retry++ < 1)) 716 /* do a retry */ 717 goto again; 718 } 719 if (result < 0) { 720 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", 721 us->pusb_dev->status); 722 usb_stor_BBB_reset(us); 723 return USB_STOR_TRANSPORT_FAILED; 724 } 725 #ifdef BBB_XPORT_TRACE 726 ptr = (unsigned char *)&csw; 727 for (index = 0; index < UMASS_BBB_CSW_SIZE; index++) 728 printf("ptr[%d] %#x ", index, ptr[index]); 729 printf("\n"); 730 #endif 731 /* misuse pipe to get the residue */ 732 pipe = le32_to_cpu(csw.dCSWDataResidue); 733 if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0) 734 pipe = srb->datalen - data_actlen; 735 if (CSWSIGNATURE != le32_to_cpu(csw.dCSWSignature)) { 736 USB_STOR_PRINTF("!CSWSIGNATURE\n"); 737 usb_stor_BBB_reset(us); 738 return USB_STOR_TRANSPORT_FAILED; 739 } else if ((CBWTag - 1) != le32_to_cpu(csw.dCSWTag)) { 740 USB_STOR_PRINTF("!Tag\n"); 741 usb_stor_BBB_reset(us); 742 return USB_STOR_TRANSPORT_FAILED; 743 } else if (csw.bCSWStatus > CSWSTATUS_PHASE) { 744 USB_STOR_PRINTF(">PHASE\n"); 745 usb_stor_BBB_reset(us); 746 return USB_STOR_TRANSPORT_FAILED; 747 } else if (csw.bCSWStatus == CSWSTATUS_PHASE) { 748 USB_STOR_PRINTF("=PHASE\n"); 749 usb_stor_BBB_reset(us); 750 return USB_STOR_TRANSPORT_FAILED; 751 } else if (data_actlen > srb->datalen) { 752 USB_STOR_PRINTF("transferred %dB instead of %dB\n", 753 data_actlen, srb->datalen); 754 return USB_STOR_TRANSPORT_FAILED; 755 } else if (csw.bCSWStatus == CSWSTATUS_FAILED) { 756 USB_STOR_PRINTF("FAILED\n"); 757 return USB_STOR_TRANSPORT_FAILED; 758 } 759 760 return result; 761 } 762 763 int usb_stor_CB_transport(ccb *srb, struct us_data *us) 764 { 765 int result, status; 766 ccb *psrb; 767 ccb reqsrb; 768 int retry, notready; 769 770 psrb = &reqsrb; 771 status = USB_STOR_TRANSPORT_GOOD; 772 retry = 0; 773 notready = 0; 774 /* issue the command */ 775 do_retry: 776 result = usb_stor_CB_comdat(srb, us); 777 USB_STOR_PRINTF("command / Data returned %d, status %X\n", 778 result, us->pusb_dev->status); 779 /* if this is an CBI Protocol, get IRQ */ 780 if (us->protocol == US_PR_CBI) { 781 status = usb_stor_CBI_get_status(srb, us); 782 /* if the status is error, report it */ 783 if (status == USB_STOR_TRANSPORT_ERROR) { 784 USB_STOR_PRINTF(" USB CBI Command Error\n"); 785 return status; 786 } 787 srb->sense_buf[12] = (unsigned char)(us->ip_data >> 8); 788 srb->sense_buf[13] = (unsigned char)(us->ip_data & 0xff); 789 if (!us->ip_data) { 790 /* if the status is good, report it */ 791 if (status == USB_STOR_TRANSPORT_GOOD) { 792 USB_STOR_PRINTF(" USB CBI Command Good\n"); 793 return status; 794 } 795 } 796 } 797 /* do we have to issue an auto request? */ 798 /* HERE we have to check the result */ 799 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { 800 USB_STOR_PRINTF("ERROR %X\n", us->pusb_dev->status); 801 us->transport_reset(us); 802 return USB_STOR_TRANSPORT_ERROR; 803 } 804 if ((us->protocol == US_PR_CBI) && 805 ((srb->cmd[0] == SCSI_REQ_SENSE) || 806 (srb->cmd[0] == SCSI_INQUIRY))) { 807 /* do not issue an autorequest after request sense */ 808 USB_STOR_PRINTF("No auto request and good\n"); 809 return USB_STOR_TRANSPORT_GOOD; 810 } 811 /* issue an request_sense */ 812 memset(&psrb->cmd[0], 0, 12); 813 psrb->cmd[0] = SCSI_REQ_SENSE; 814 psrb->cmd[1] = srb->lun << 5; 815 psrb->cmd[4] = 18; 816 psrb->datalen = 18; 817 psrb->pdata = &srb->sense_buf[0]; 818 psrb->cmdlen = 12; 819 /* issue the command */ 820 result = usb_stor_CB_comdat(psrb, us); 821 USB_STOR_PRINTF("auto request returned %d\n", result); 822 /* if this is an CBI Protocol, get IRQ */ 823 if (us->protocol == US_PR_CBI) 824 status = usb_stor_CBI_get_status(psrb, us); 825 826 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { 827 USB_STOR_PRINTF(" AUTO REQUEST ERROR %d\n", 828 us->pusb_dev->status); 829 return USB_STOR_TRANSPORT_ERROR; 830 } 831 USB_STOR_PRINTF("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n", 832 srb->sense_buf[0], srb->sense_buf[2], 833 srb->sense_buf[12], srb->sense_buf[13]); 834 /* Check the auto request result */ 835 if ((srb->sense_buf[2] == 0) && 836 (srb->sense_buf[12] == 0) && 837 (srb->sense_buf[13] == 0)) { 838 /* ok, no sense */ 839 return USB_STOR_TRANSPORT_GOOD; 840 } 841 842 /* Check the auto request result */ 843 switch (srb->sense_buf[2]) { 844 case 0x01: 845 /* Recovered Error */ 846 return USB_STOR_TRANSPORT_GOOD; 847 break; 848 case 0x02: 849 /* Not Ready */ 850 if (notready++ > USB_TRANSPORT_NOT_READY_RETRY) { 851 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" 852 " 0x%02X (NOT READY)\n", srb->cmd[0], 853 srb->sense_buf[0], srb->sense_buf[2], 854 srb->sense_buf[12], srb->sense_buf[13]); 855 return USB_STOR_TRANSPORT_FAILED; 856 } else { 857 wait_ms(100); 858 goto do_retry; 859 } 860 break; 861 default: 862 if (retry++ > USB_TRANSPORT_UNKNOWN_RETRY) { 863 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" 864 " 0x%02X\n", srb->cmd[0], srb->sense_buf[0], 865 srb->sense_buf[2], srb->sense_buf[12], 866 srb->sense_buf[13]); 867 return USB_STOR_TRANSPORT_FAILED; 868 } else 869 goto do_retry; 870 break; 871 } 872 return USB_STOR_TRANSPORT_FAILED; 873 } 874 875 876 static int usb_inquiry(ccb *srb, struct us_data *ss) 877 { 878 int retry, i; 879 retry = 5; 880 do { 881 memset(&srb->cmd[0], 0, 12); 882 srb->cmd[0] = SCSI_INQUIRY; 883 srb->cmd[1] = srb->lun<<5; 884 srb->cmd[4] = 36; 885 srb->datalen = 36; 886 srb->cmdlen = 12; 887 i = ss->transport(srb, ss); 888 USB_STOR_PRINTF("inquiry returns %d\n", i); 889 if (i == 0) 890 break; 891 } while (retry--); 892 893 if (!retry) { 894 printf("error in inquiry\n"); 895 return -1; 896 } 897 return 0; 898 } 899 900 static int usb_request_sense(ccb *srb, struct us_data *ss) 901 { 902 char *ptr; 903 904 ptr = (char *)srb->pdata; 905 memset(&srb->cmd[0], 0, 12); 906 srb->cmd[0] = SCSI_REQ_SENSE; 907 srb->cmd[1] = srb->lun << 5; 908 srb->cmd[4] = 18; 909 srb->datalen = 18; 910 srb->pdata = &srb->sense_buf[0]; 911 srb->cmdlen = 12; 912 ss->transport(srb, ss); 913 USB_STOR_PRINTF("Request Sense returned %02X %02X %02X\n", 914 srb->sense_buf[2], srb->sense_buf[12], 915 srb->sense_buf[13]); 916 srb->pdata = (uchar *)ptr; 917 return 0; 918 } 919 920 static int usb_test_unit_ready(ccb *srb, struct us_data *ss) 921 { 922 int retries = 10; 923 924 do { 925 memset(&srb->cmd[0], 0, 12); 926 srb->cmd[0] = SCSI_TST_U_RDY; 927 srb->cmd[1] = srb->lun << 5; 928 srb->datalen = 0; 929 srb->cmdlen = 12; 930 if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) 931 return 0; 932 usb_request_sense(srb, ss); 933 wait_ms(100); 934 } while (retries--); 935 936 return -1; 937 } 938 939 static int usb_read_capacity(ccb *srb, struct us_data *ss) 940 { 941 int retry; 942 /* XXX retries */ 943 retry = 3; 944 do { 945 memset(&srb->cmd[0], 0, 12); 946 srb->cmd[0] = SCSI_RD_CAPAC; 947 srb->cmd[1] = srb->lun << 5; 948 srb->datalen = 8; 949 srb->cmdlen = 12; 950 if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) 951 return 0; 952 } while (retry--); 953 954 return -1; 955 } 956 957 static int usb_read_10(ccb *srb, struct us_data *ss, unsigned long start, 958 unsigned short blocks) 959 { 960 memset(&srb->cmd[0], 0, 12); 961 srb->cmd[0] = SCSI_READ10; 962 srb->cmd[1] = srb->lun << 5; 963 srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff; 964 srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff; 965 srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff; 966 srb->cmd[5] = ((unsigned char) (start)) & 0xff; 967 srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff; 968 srb->cmd[8] = (unsigned char) blocks & 0xff; 969 srb->cmdlen = 12; 970 USB_STOR_PRINTF("read10: start %lx blocks %x\n", start, blocks); 971 return ss->transport(srb, ss); 972 } 973 974 975 #ifdef CONFIG_USB_BIN_FIXUP 976 /* 977 * Some USB storage devices queried for SCSI identification data respond with 978 * binary strings, which if output to the console freeze the terminal. The 979 * workaround is to modify the vendor and product strings read from such 980 * device with proper values (as reported by 'usb info'). 981 * 982 * Vendor and product length limits are taken from the definition of 983 * block_dev_desc_t in include/part.h. 984 */ 985 static void usb_bin_fixup(struct usb_device_descriptor descriptor, 986 unsigned char vendor[], 987 unsigned char product[]) { 988 const unsigned char max_vendor_len = 40; 989 const unsigned char max_product_len = 20; 990 if (descriptor.idVendor == 0x0424 && descriptor.idProduct == 0x223a) { 991 strncpy((char *)vendor, "SMSC", max_vendor_len); 992 strncpy((char *)product, "Flash Media Cntrller", 993 max_product_len); 994 } 995 } 996 #endif /* CONFIG_USB_BIN_FIXUP */ 997 998 #define USB_MAX_READ_BLK 20 999 1000 unsigned long usb_stor_read(int device, unsigned long blknr, 1001 unsigned long blkcnt, void *buffer) 1002 { 1003 unsigned long start, blks, buf_addr; 1004 unsigned short smallblks; 1005 struct usb_device *dev; 1006 int retry, i; 1007 ccb *srb = &usb_ccb; 1008 1009 if (blkcnt == 0) 1010 return 0; 1011 1012 device &= 0xff; 1013 /* Setup device */ 1014 USB_STOR_PRINTF("\nusb_read: dev %d \n", device); 1015 dev = NULL; 1016 for (i = 0; i < USB_MAX_DEVICE; i++) { 1017 dev = usb_get_dev_index(i); 1018 if (dev == NULL) 1019 return 0; 1020 if (dev->devnum == usb_dev_desc[device].target) 1021 break; 1022 } 1023 1024 usb_disable_asynch(1); /* asynch transfer not allowed */ 1025 srb->lun = usb_dev_desc[device].lun; 1026 buf_addr = (unsigned long)buffer; 1027 start = blknr; 1028 blks = blkcnt; 1029 if (usb_test_unit_ready(srb, (struct us_data *)dev->privptr)) { 1030 printf("Device NOT ready\n Request Sense returned %02X %02X" 1031 " %02X\n", srb->sense_buf[2], srb->sense_buf[12], 1032 srb->sense_buf[13]); 1033 return 0; 1034 } 1035 1036 USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx" 1037 " buffer %lx\n", device, start, blks, buf_addr); 1038 1039 do { 1040 /* XXX need some comment here */ 1041 retry = 2; 1042 srb->pdata = (unsigned char *)buf_addr; 1043 if (blks > USB_MAX_READ_BLK) 1044 smallblks = USB_MAX_READ_BLK; 1045 else 1046 smallblks = (unsigned short) blks; 1047 retry_it: 1048 if (smallblks == USB_MAX_READ_BLK) 1049 usb_show_progress(); 1050 srb->datalen = usb_dev_desc[device].blksz * smallblks; 1051 srb->pdata = (unsigned char *)buf_addr; 1052 if (usb_read_10(srb, (struct us_data *)dev->privptr, start, 1053 smallblks)) { 1054 USB_STOR_PRINTF("Read ERROR\n"); 1055 usb_request_sense(srb, (struct us_data *)dev->privptr); 1056 if (retry--) 1057 goto retry_it; 1058 blkcnt -= blks; 1059 break; 1060 } 1061 start += smallblks; 1062 blks -= smallblks; 1063 buf_addr += srb->datalen; 1064 } while (blks != 0); 1065 1066 USB_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\n", 1067 start, smallblks, buf_addr); 1068 1069 usb_disable_asynch(0); /* asynch transfer allowed */ 1070 if (blkcnt >= USB_MAX_READ_BLK) 1071 printf("\n"); 1072 return blkcnt; 1073 } 1074 1075 1076 /* Probe to see if a new device is actually a Storage device */ 1077 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, 1078 struct us_data *ss) 1079 { 1080 struct usb_interface_descriptor *iface; 1081 int i; 1082 unsigned int flags = 0; 1083 1084 int protocol = 0; 1085 int subclass = 0; 1086 1087 /* let's examine the device now */ 1088 iface = &dev->config.if_desc[ifnum]; 1089 1090 #if 0 1091 /* this is the place to patch some storage devices */ 1092 USB_STOR_PRINTF("iVendor %X iProduct %X\n", dev->descriptor.idVendor, 1093 dev->descriptor.idProduct); 1094 1095 if ((dev->descriptor.idVendor) == 0x066b && 1096 (dev->descriptor.idProduct) == 0x0103) { 1097 USB_STOR_PRINTF("patched for E-USB\n"); 1098 protocol = US_PR_CB; 1099 subclass = US_SC_UFI; /* an assumption */ 1100 } 1101 #endif 1102 1103 if (dev->descriptor.bDeviceClass != 0 || 1104 iface->bInterfaceClass != USB_CLASS_MASS_STORAGE || 1105 iface->bInterfaceSubClass < US_SC_MIN || 1106 iface->bInterfaceSubClass > US_SC_MAX) { 1107 /* if it's not a mass storage, we go no further */ 1108 return 0; 1109 } 1110 1111 memset(ss, 0, sizeof(struct us_data)); 1112 1113 /* At this point, we know we've got a live one */ 1114 USB_STOR_PRINTF("\n\nUSB Mass Storage device detected\n"); 1115 1116 /* Initialize the us_data structure with some useful info */ 1117 ss->flags = flags; 1118 ss->ifnum = ifnum; 1119 ss->pusb_dev = dev; 1120 ss->attention_done = 0; 1121 1122 /* If the device has subclass and protocol, then use that. Otherwise, 1123 * take data from the specific interface. 1124 */ 1125 if (subclass) { 1126 ss->subclass = subclass; 1127 ss->protocol = protocol; 1128 } else { 1129 ss->subclass = iface->bInterfaceSubClass; 1130 ss->protocol = iface->bInterfaceProtocol; 1131 } 1132 1133 /* set the handler pointers based on the protocol */ 1134 USB_STOR_PRINTF("Transport: "); 1135 switch (ss->protocol) { 1136 case US_PR_CB: 1137 USB_STOR_PRINTF("Control/Bulk\n"); 1138 ss->transport = usb_stor_CB_transport; 1139 ss->transport_reset = usb_stor_CB_reset; 1140 break; 1141 1142 case US_PR_CBI: 1143 USB_STOR_PRINTF("Control/Bulk/Interrupt\n"); 1144 ss->transport = usb_stor_CB_transport; 1145 ss->transport_reset = usb_stor_CB_reset; 1146 break; 1147 case US_PR_BULK: 1148 USB_STOR_PRINTF("Bulk/Bulk/Bulk\n"); 1149 ss->transport = usb_stor_BBB_transport; 1150 ss->transport_reset = usb_stor_BBB_reset; 1151 break; 1152 default: 1153 printf("USB Storage Transport unknown / not yet implemented\n"); 1154 return 0; 1155 break; 1156 } 1157 1158 /* 1159 * We are expecting a minimum of 2 endpoints - in and out (bulk). 1160 * An optional interrupt is OK (necessary for CBI protocol). 1161 * We will ignore any others. 1162 */ 1163 for (i = 0; i < iface->bNumEndpoints; i++) { 1164 /* is it an BULK endpoint? */ 1165 if ((iface->ep_desc[i].bmAttributes & 1166 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { 1167 if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN) 1168 ss->ep_in = iface->ep_desc[i].bEndpointAddress & 1169 USB_ENDPOINT_NUMBER_MASK; 1170 else 1171 ss->ep_out = 1172 iface->ep_desc[i].bEndpointAddress & 1173 USB_ENDPOINT_NUMBER_MASK; 1174 } 1175 1176 /* is it an interrupt endpoint? */ 1177 if ((iface->ep_desc[i].bmAttributes & 1178 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { 1179 ss->ep_int = iface->ep_desc[i].bEndpointAddress & 1180 USB_ENDPOINT_NUMBER_MASK; 1181 ss->irqinterval = iface->ep_desc[i].bInterval; 1182 } 1183 } 1184 USB_STOR_PRINTF("Endpoints In %d Out %d Int %d\n", 1185 ss->ep_in, ss->ep_out, ss->ep_int); 1186 1187 /* Do some basic sanity checks, and bail if we find a problem */ 1188 if (usb_set_interface(dev, iface->bInterfaceNumber, 0) || 1189 !ss->ep_in || !ss->ep_out || 1190 (ss->protocol == US_PR_CBI && ss->ep_int == 0)) { 1191 USB_STOR_PRINTF("Problems with device\n"); 1192 return 0; 1193 } 1194 /* set class specific stuff */ 1195 /* We only handle certain protocols. Currently, these are 1196 * the only ones. 1197 * The SFF8070 accepts the requests used in u-boot 1198 */ 1199 if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI && 1200 ss->subclass != US_SC_8070) { 1201 printf("Sorry, protocol %d not yet supported.\n", ss->subclass); 1202 return 0; 1203 } 1204 if (ss->ep_int) { 1205 /* we had found an interrupt endpoint, prepare irq pipe 1206 * set up the IRQ pipe and handler 1207 */ 1208 ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255; 1209 ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int); 1210 ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe); 1211 dev->irq_handle = usb_stor_irq; 1212 } 1213 dev->privptr = (void *)ss; 1214 return 1; 1215 } 1216 1217 int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, 1218 block_dev_desc_t *dev_desc) 1219 { 1220 unsigned char perq, modi; 1221 unsigned long cap[2]; 1222 unsigned long *capacity, *blksz; 1223 ccb *pccb = &usb_ccb; 1224 1225 /* for some reasons a couple of devices would not survive this reset */ 1226 if ( 1227 /* Sony USM256E */ 1228 (dev->descriptor.idVendor == 0x054c && 1229 dev->descriptor.idProduct == 0x019e) 1230 || 1231 /* USB007 Mini-USB2 Flash Drive */ 1232 (dev->descriptor.idVendor == 0x066f && 1233 dev->descriptor.idProduct == 0x2010) 1234 || 1235 /* SanDisk Corporation Cruzer Micro 20044318410546613953 */ 1236 (dev->descriptor.idVendor == 0x0781 && 1237 dev->descriptor.idProduct == 0x5151) 1238 || 1239 /* 1240 * SanDisk Corporation U3 Cruzer Micro 1/4GB 1241 * Flash Drive 000016244373FFB4 1242 */ 1243 (dev->descriptor.idVendor == 0x0781 && 1244 dev->descriptor.idProduct == 0x5406) 1245 ) 1246 USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\n"); 1247 else 1248 ss->transport_reset(ss); 1249 1250 pccb->pdata = usb_stor_buf; 1251 1252 dev_desc->target = dev->devnum; 1253 pccb->lun = dev_desc->lun; 1254 USB_STOR_PRINTF(" address %d\n", dev_desc->target); 1255 1256 if (usb_inquiry(pccb, ss)) 1257 return -1; 1258 1259 perq = usb_stor_buf[0]; 1260 modi = usb_stor_buf[1]; 1261 1262 if ((perq & 0x1f) == 0x1f) { 1263 /* skip unknown devices */ 1264 return 0; 1265 } 1266 if ((modi&0x80) == 0x80) { 1267 /* drive is removable */ 1268 dev_desc->removable = 1; 1269 } 1270 memcpy(&dev_desc->vendor[0], &usb_stor_buf[8], 8); 1271 memcpy(&dev_desc->product[0], &usb_stor_buf[16], 16); 1272 memcpy(&dev_desc->revision[0], &usb_stor_buf[32], 4); 1273 dev_desc->vendor[8] = 0; 1274 dev_desc->product[16] = 0; 1275 dev_desc->revision[4] = 0; 1276 #ifdef CONFIG_USB_BIN_FIXUP 1277 usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor, 1278 (uchar *)dev_desc->product); 1279 #endif /* CONFIG_USB_BIN_FIXUP */ 1280 USB_STOR_PRINTF("ISO Vers %X, Response Data %X\n", usb_stor_buf[2], 1281 usb_stor_buf[3]); 1282 if (usb_test_unit_ready(pccb, ss)) { 1283 printf("Device NOT ready\n" 1284 " Request Sense returned %02X %02X %02X\n", 1285 pccb->sense_buf[2], pccb->sense_buf[12], 1286 pccb->sense_buf[13]); 1287 if (dev_desc->removable == 1) { 1288 dev_desc->type = perq; 1289 return 1; 1290 } 1291 return 0; 1292 } 1293 pccb->pdata = (unsigned char *)&cap[0]; 1294 memset(pccb->pdata, 0, 8); 1295 if (usb_read_capacity(pccb, ss) != 0) { 1296 printf("READ_CAP ERROR\n"); 1297 cap[0] = 2880; 1298 cap[1] = 0x200; 1299 } 1300 USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\n", cap[0], 1301 cap[1]); 1302 #if 0 1303 if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */ 1304 cap[0] >>= 16; 1305 #endif 1306 cap[0] = cpu_to_be32(cap[0]); 1307 cap[1] = cpu_to_be32(cap[1]); 1308 1309 /* this assumes bigendian! */ 1310 cap[0] += 1; 1311 capacity = &cap[0]; 1312 blksz = &cap[1]; 1313 USB_STOR_PRINTF("Capacity = 0x%lx, blocksz = 0x%lx\n", 1314 *capacity, *blksz); 1315 dev_desc->lba = *capacity; 1316 dev_desc->blksz = *blksz; 1317 dev_desc->type = perq; 1318 USB_STOR_PRINTF(" address %d\n", dev_desc->target); 1319 USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type); 1320 1321 init_part(dev_desc); 1322 1323 USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type); 1324 return 1; 1325 } 1326