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 <garyj@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 unsigned long usb_stor_write(int device, unsigned long blknr, 172 unsigned long blkcnt, const 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 usb_dev_desc[i].block_write = usb_stor_write; 233 } 234 235 usb_max_devs = 0; 236 for (i = 0; i < USB_MAX_DEVICE; i++) { 237 dev = usb_get_dev_index(i); /* get device */ 238 USB_STOR_PRINTF("i=%d\n", i); 239 if (dev == NULL) 240 break; /* no more devices avaiable */ 241 242 if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { 243 /* ok, it is a storage devices 244 * get info and fill it in 245 */ 246 if (usb_stor_get_info(dev, &usb_stor[usb_max_devs], 247 &usb_dev_desc[usb_max_devs])) 248 usb_max_devs++; 249 } 250 /* if storage device */ 251 if (usb_max_devs == USB_MAX_STOR_DEV) { 252 printf("max USB Storage Device reached: %d stopping\n", 253 usb_max_devs); 254 break; 255 } 256 } /* for */ 257 258 usb_disable_asynch(0); /* asynch transfer allowed */ 259 printf("%d Storage Device(s) found\n", usb_max_devs); 260 if (usb_max_devs > 0) 261 return 0; 262 return -1; 263 } 264 265 static int usb_stor_irq(struct usb_device *dev) 266 { 267 struct us_data *us; 268 us = (struct us_data *)dev->privptr; 269 270 if (us->ip_wanted) 271 us->ip_wanted = 0; 272 return 0; 273 } 274 275 276 #ifdef USB_STOR_DEBUG 277 278 static void usb_show_srb(ccb *pccb) 279 { 280 int i; 281 printf("SRB: len %d datalen 0x%lX\n ", pccb->cmdlen, pccb->datalen); 282 for (i = 0; i < 12; i++) 283 printf("%02X ", pccb->cmd[i]); 284 printf("\n"); 285 } 286 287 static void display_int_status(unsigned long tmp) 288 { 289 printf("Status: %s %s %s %s %s %s %s\n", 290 (tmp & USB_ST_ACTIVE) ? "Active" : "", 291 (tmp & USB_ST_STALLED) ? "Stalled" : "", 292 (tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "", 293 (tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "", 294 (tmp & USB_ST_NAK_REC) ? "NAKed" : "", 295 (tmp & USB_ST_CRC_ERR) ? "CRC Error" : "", 296 (tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : ""); 297 } 298 #endif 299 /*********************************************************************** 300 * Data transfer routines 301 ***********************************************************************/ 302 303 static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length) 304 { 305 int max_size; 306 int this_xfer; 307 int result; 308 int partial; 309 int maxtry; 310 int stat; 311 312 /* determine the maximum packet size for these transfers */ 313 max_size = usb_maxpacket(us->pusb_dev, pipe) * 16; 314 315 /* while we have data left to transfer */ 316 while (length) { 317 318 /* calculate how long this will be -- maximum or a remainder */ 319 this_xfer = length > max_size ? max_size : length; 320 length -= this_xfer; 321 322 /* setup the retry counter */ 323 maxtry = 10; 324 325 /* set up the transfer loop */ 326 do { 327 /* transfer the data */ 328 USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\n", 329 (unsigned int)buf, this_xfer, 11 - maxtry); 330 result = usb_bulk_msg(us->pusb_dev, pipe, buf, 331 this_xfer, &partial, 332 USB_CNTL_TIMEOUT * 5); 333 USB_STOR_PRINTF("bulk_msg returned %d xferred %d/%d\n", 334 result, partial, this_xfer); 335 if (us->pusb_dev->status != 0) { 336 /* if we stall, we need to clear it before 337 * we go on 338 */ 339 #ifdef USB_STOR_DEBUG 340 display_int_status(us->pusb_dev->status); 341 #endif 342 if (us->pusb_dev->status & USB_ST_STALLED) { 343 USB_STOR_PRINTF("stalled ->clearing endpoint halt for pipe 0x%x\n", pipe); 344 stat = us->pusb_dev->status; 345 usb_clear_halt(us->pusb_dev, pipe); 346 us->pusb_dev->status = stat; 347 if (this_xfer == partial) { 348 USB_STOR_PRINTF("bulk transferred with error %X, but data ok\n", us->pusb_dev->status); 349 return 0; 350 } 351 else 352 return result; 353 } 354 if (us->pusb_dev->status & USB_ST_NAK_REC) { 355 USB_STOR_PRINTF("Device NAKed bulk_msg\n"); 356 return result; 357 } 358 USB_STOR_PRINTF("bulk transferred with error"); 359 if (this_xfer == partial) { 360 USB_STOR_PRINTF(" %d, but data ok\n", 361 us->pusb_dev->status); 362 return 0; 363 } 364 /* if our try counter reaches 0, bail out */ 365 USB_STOR_PRINTF(" %d, data %d\n", 366 us->pusb_dev->status, partial); 367 if (!maxtry--) 368 return result; 369 } 370 /* update to show what data was transferred */ 371 this_xfer -= partial; 372 buf += partial; 373 /* continue until this transfer is done */ 374 } while (this_xfer); 375 } 376 377 /* if we get here, we're done and successful */ 378 return 0; 379 } 380 381 static int usb_stor_BBB_reset(struct us_data *us) 382 { 383 int result; 384 unsigned int pipe; 385 386 /* 387 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class) 388 * 389 * For Reset Recovery the host shall issue in the following order: 390 * a) a Bulk-Only Mass Storage Reset 391 * b) a Clear Feature HALT to the Bulk-In endpoint 392 * c) a Clear Feature HALT to the Bulk-Out endpoint 393 * 394 * This is done in 3 steps. 395 * 396 * If the reset doesn't succeed, the device should be port reset. 397 * 398 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c. 399 */ 400 USB_STOR_PRINTF("BBB_reset\n"); 401 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 402 US_BBB_RESET, 403 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 404 0, us->ifnum, 0, 0, USB_CNTL_TIMEOUT * 5); 405 406 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { 407 USB_STOR_PRINTF("RESET:stall\n"); 408 return -1; 409 } 410 411 /* long wait for reset */ 412 wait_ms(150); 413 USB_STOR_PRINTF("BBB_reset result %d: status %X reset\n", result, 414 us->pusb_dev->status); 415 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 416 result = usb_clear_halt(us->pusb_dev, pipe); 417 /* long wait for reset */ 418 wait_ms(150); 419 USB_STOR_PRINTF("BBB_reset result %d: status %X clearing IN endpoint\n", 420 result, us->pusb_dev->status); 421 /* long wait for reset */ 422 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 423 result = usb_clear_halt(us->pusb_dev, pipe); 424 wait_ms(150); 425 USB_STOR_PRINTF("BBB_reset result %d: status %X" 426 " clearing OUT endpoint\n", result, 427 us->pusb_dev->status); 428 USB_STOR_PRINTF("BBB_reset done\n"); 429 return 0; 430 } 431 432 /* FIXME: this reset function doesn't really reset the port, and it 433 * should. Actually it should probably do what it's doing here, and 434 * reset the port physically 435 */ 436 static int usb_stor_CB_reset(struct us_data *us) 437 { 438 unsigned char cmd[12]; 439 int result; 440 441 USB_STOR_PRINTF("CB_reset\n"); 442 memset(cmd, 0xff, sizeof(cmd)); 443 cmd[0] = SCSI_SEND_DIAG; 444 cmd[1] = 4; 445 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 446 US_CBI_ADSC, 447 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 448 0, us->ifnum, cmd, sizeof(cmd), 449 USB_CNTL_TIMEOUT * 5); 450 451 /* long wait for reset */ 452 wait_ms(1500); 453 USB_STOR_PRINTF("CB_reset result %d: status %X" 454 " clearing endpoint halt\n", result, 455 us->pusb_dev->status); 456 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in)); 457 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out)); 458 459 USB_STOR_PRINTF("CB_reset done\n"); 460 return 0; 461 } 462 463 /* 464 * Set up the command for a BBB device. Note that the actual SCSI 465 * command is copied into cbw.CBWCDB. 466 */ 467 int usb_stor_BBB_comdat(ccb *srb, struct us_data *us) 468 { 469 int result; 470 int actlen; 471 int dir_in; 472 unsigned int pipe; 473 umass_bbb_cbw_t cbw; 474 475 dir_in = US_DIRECTION(srb->cmd[0]); 476 477 #ifdef BBB_COMDAT_TRACE 478 printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\n", 479 dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, 480 srb->pdata); 481 if (srb->cmdlen) { 482 for (result = 0; result < srb->cmdlen; result++) 483 printf("cmd[%d] %#x ", result, srb->cmd[result]); 484 printf("\n"); 485 } 486 #endif 487 /* sanity checks */ 488 if (!(srb->cmdlen <= CBWCDBLENGTH)) { 489 USB_STOR_PRINTF("usb_stor_BBB_comdat:cmdlen too large\n"); 490 return -1; 491 } 492 493 /* always OUT to the ep */ 494 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 495 496 cbw.dCBWSignature = cpu_to_le32(CBWSIGNATURE); 497 cbw.dCBWTag = cpu_to_le32(CBWTag++); 498 cbw.dCBWDataTransferLength = cpu_to_le32(srb->datalen); 499 cbw.bCBWFlags = (dir_in ? CBWFLAGS_IN : CBWFLAGS_OUT); 500 cbw.bCBWLUN = srb->lun; 501 cbw.bCDBLength = srb->cmdlen; 502 /* copy the command data into the CBW command data buffer */ 503 /* DST SRC LEN!!! */ 504 memcpy(cbw.CBWCDB, srb->cmd, srb->cmdlen); 505 result = usb_bulk_msg(us->pusb_dev, pipe, &cbw, UMASS_BBB_CBW_SIZE, 506 &actlen, USB_CNTL_TIMEOUT * 5); 507 if (result < 0) 508 USB_STOR_PRINTF("usb_stor_BBB_comdat:usb_bulk_msg error\n"); 509 return result; 510 } 511 512 /* FIXME: we also need a CBI_command which sets up the completion 513 * interrupt, and waits for it 514 */ 515 int usb_stor_CB_comdat(ccb *srb, struct us_data *us) 516 { 517 int result = 0; 518 int dir_in, retry; 519 unsigned int pipe; 520 unsigned long status; 521 522 retry = 5; 523 dir_in = US_DIRECTION(srb->cmd[0]); 524 525 if (dir_in) 526 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 527 else 528 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 529 530 while (retry--) { 531 USB_STOR_PRINTF("CBI gets a command: Try %d\n", 5 - retry); 532 #ifdef USB_STOR_DEBUG 533 usb_show_srb(srb); 534 #endif 535 /* let's send the command via the control pipe */ 536 result = usb_control_msg(us->pusb_dev, 537 usb_sndctrlpipe(us->pusb_dev , 0), 538 US_CBI_ADSC, 539 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 540 0, us->ifnum, 541 srb->cmd, srb->cmdlen, 542 USB_CNTL_TIMEOUT * 5); 543 USB_STOR_PRINTF("CB_transport: control msg returned %d," 544 " status %X\n", result, us->pusb_dev->status); 545 /* check the return code for the command */ 546 if (result < 0) { 547 if (us->pusb_dev->status & USB_ST_STALLED) { 548 status = us->pusb_dev->status; 549 USB_STOR_PRINTF(" stall during command found," 550 " clear pipe\n"); 551 usb_clear_halt(us->pusb_dev, 552 usb_sndctrlpipe(us->pusb_dev, 0)); 553 us->pusb_dev->status = status; 554 } 555 USB_STOR_PRINTF(" error during command %02X" 556 " Stat = %X\n", srb->cmd[0], 557 us->pusb_dev->status); 558 return result; 559 } 560 /* transfer the data payload for this command, if one exists*/ 561 562 USB_STOR_PRINTF("CB_transport: control msg returned %d," 563 " direction is %s to go 0x%lx\n", result, 564 dir_in ? "IN" : "OUT", srb->datalen); 565 if (srb->datalen) { 566 result = us_one_transfer(us, pipe, (char *)srb->pdata, 567 srb->datalen); 568 USB_STOR_PRINTF("CBI attempted to transfer data," 569 " result is %d status %lX, len %d\n", 570 result, us->pusb_dev->status, 571 us->pusb_dev->act_len); 572 if (!(us->pusb_dev->status & USB_ST_NAK_REC)) 573 break; 574 } /* if (srb->datalen) */ 575 else 576 break; 577 } 578 /* return result */ 579 580 return result; 581 } 582 583 584 int usb_stor_CBI_get_status(ccb *srb, struct us_data *us) 585 { 586 int timeout; 587 588 us->ip_wanted = 1; 589 submit_int_msg(us->pusb_dev, us->irqpipe, 590 (void *) &us->ip_data, us->irqmaxp, us->irqinterval); 591 timeout = 1000; 592 while (timeout--) { 593 if ((volatile int *) us->ip_wanted == 0) 594 break; 595 wait_ms(10); 596 } 597 if (us->ip_wanted) { 598 printf(" Did not get interrupt on CBI\n"); 599 us->ip_wanted = 0; 600 return USB_STOR_TRANSPORT_ERROR; 601 } 602 USB_STOR_PRINTF 603 ("Got interrupt data 0x%x, transfered %d status 0x%lX\n", 604 us->ip_data, us->pusb_dev->irq_act_len, 605 us->pusb_dev->irq_status); 606 /* UFI gives us ASC and ASCQ, like a request sense */ 607 if (us->subclass == US_SC_UFI) { 608 if (srb->cmd[0] == SCSI_REQ_SENSE || 609 srb->cmd[0] == SCSI_INQUIRY) 610 return USB_STOR_TRANSPORT_GOOD; /* Good */ 611 else if (us->ip_data) 612 return USB_STOR_TRANSPORT_FAILED; 613 else 614 return USB_STOR_TRANSPORT_GOOD; 615 } 616 /* otherwise, we interpret the data normally */ 617 switch (us->ip_data) { 618 case 0x0001: 619 return USB_STOR_TRANSPORT_GOOD; 620 case 0x0002: 621 return USB_STOR_TRANSPORT_FAILED; 622 default: 623 return USB_STOR_TRANSPORT_ERROR; 624 } /* switch */ 625 return USB_STOR_TRANSPORT_ERROR; 626 } 627 628 #define USB_TRANSPORT_UNKNOWN_RETRY 5 629 #define USB_TRANSPORT_NOT_READY_RETRY 10 630 631 /* clear a stall on an endpoint - special for BBB devices */ 632 int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt) 633 { 634 int result; 635 636 /* ENDPOINT_HALT = 0, so set value to 0 */ 637 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 638 USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 639 0, endpt, 0, 0, USB_CNTL_TIMEOUT * 5); 640 return result; 641 } 642 643 int usb_stor_BBB_transport(ccb *srb, struct us_data *us) 644 { 645 int result, retry; 646 int dir_in; 647 int actlen, data_actlen; 648 unsigned int pipe, pipein, pipeout; 649 umass_bbb_csw_t csw; 650 #ifdef BBB_XPORT_TRACE 651 unsigned char *ptr; 652 int index; 653 #endif 654 655 dir_in = US_DIRECTION(srb->cmd[0]); 656 657 /* COMMAND phase */ 658 USB_STOR_PRINTF("COMMAND phase\n"); 659 result = usb_stor_BBB_comdat(srb, us); 660 if (result < 0) { 661 USB_STOR_PRINTF("failed to send CBW status %ld\n", 662 us->pusb_dev->status); 663 usb_stor_BBB_reset(us); 664 return USB_STOR_TRANSPORT_FAILED; 665 } 666 wait_ms(5); 667 pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 668 pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 669 /* DATA phase + error handling */ 670 data_actlen = 0; 671 /* no data, go immediately to the STATUS phase */ 672 if (srb->datalen == 0) 673 goto st; 674 USB_STOR_PRINTF("DATA phase\n"); 675 if (dir_in) 676 pipe = pipein; 677 else 678 pipe = pipeout; 679 result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen, 680 &data_actlen, USB_CNTL_TIMEOUT * 5); 681 /* special handling of STALL in DATA phase */ 682 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { 683 USB_STOR_PRINTF("DATA:stall\n"); 684 /* clear the STALL on the endpoint */ 685 result = usb_stor_BBB_clear_endpt_stall(us, 686 dir_in ? us->ep_in : us->ep_out); 687 if (result >= 0) 688 /* continue on to STATUS phase */ 689 goto st; 690 } 691 if (result < 0) { 692 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", 693 us->pusb_dev->status); 694 usb_stor_BBB_reset(us); 695 return USB_STOR_TRANSPORT_FAILED; 696 } 697 #ifdef BBB_XPORT_TRACE 698 for (index = 0; index < data_actlen; index++) 699 printf("pdata[%d] %#x ", index, srb->pdata[index]); 700 printf("\n"); 701 #endif 702 /* STATUS phase + error handling */ 703 st: 704 retry = 0; 705 again: 706 USB_STOR_PRINTF("STATUS phase\n"); 707 result = usb_bulk_msg(us->pusb_dev, pipein, &csw, UMASS_BBB_CSW_SIZE, 708 &actlen, USB_CNTL_TIMEOUT*5); 709 710 /* special handling of STALL in STATUS phase */ 711 if ((result < 0) && (retry < 1) && 712 (us->pusb_dev->status & USB_ST_STALLED)) { 713 USB_STOR_PRINTF("STATUS:stall\n"); 714 /* clear the STALL on the endpoint */ 715 result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in); 716 if (result >= 0 && (retry++ < 1)) 717 /* do a retry */ 718 goto again; 719 } 720 if (result < 0) { 721 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", 722 us->pusb_dev->status); 723 usb_stor_BBB_reset(us); 724 return USB_STOR_TRANSPORT_FAILED; 725 } 726 #ifdef BBB_XPORT_TRACE 727 ptr = (unsigned char *)&csw; 728 for (index = 0; index < UMASS_BBB_CSW_SIZE; index++) 729 printf("ptr[%d] %#x ", index, ptr[index]); 730 printf("\n"); 731 #endif 732 /* misuse pipe to get the residue */ 733 pipe = le32_to_cpu(csw.dCSWDataResidue); 734 if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0) 735 pipe = srb->datalen - data_actlen; 736 if (CSWSIGNATURE != le32_to_cpu(csw.dCSWSignature)) { 737 USB_STOR_PRINTF("!CSWSIGNATURE\n"); 738 usb_stor_BBB_reset(us); 739 return USB_STOR_TRANSPORT_FAILED; 740 } else if ((CBWTag - 1) != le32_to_cpu(csw.dCSWTag)) { 741 USB_STOR_PRINTF("!Tag\n"); 742 usb_stor_BBB_reset(us); 743 return USB_STOR_TRANSPORT_FAILED; 744 } else if (csw.bCSWStatus > CSWSTATUS_PHASE) { 745 USB_STOR_PRINTF(">PHASE\n"); 746 usb_stor_BBB_reset(us); 747 return USB_STOR_TRANSPORT_FAILED; 748 } else if (csw.bCSWStatus == CSWSTATUS_PHASE) { 749 USB_STOR_PRINTF("=PHASE\n"); 750 usb_stor_BBB_reset(us); 751 return USB_STOR_TRANSPORT_FAILED; 752 } else if (data_actlen > srb->datalen) { 753 USB_STOR_PRINTF("transferred %dB instead of %dB\n", 754 data_actlen, srb->datalen); 755 return USB_STOR_TRANSPORT_FAILED; 756 } else if (csw.bCSWStatus == CSWSTATUS_FAILED) { 757 USB_STOR_PRINTF("FAILED\n"); 758 return USB_STOR_TRANSPORT_FAILED; 759 } 760 761 return result; 762 } 763 764 int usb_stor_CB_transport(ccb *srb, struct us_data *us) 765 { 766 int result, status; 767 ccb *psrb; 768 ccb reqsrb; 769 int retry, notready; 770 771 psrb = &reqsrb; 772 status = USB_STOR_TRANSPORT_GOOD; 773 retry = 0; 774 notready = 0; 775 /* issue the command */ 776 do_retry: 777 result = usb_stor_CB_comdat(srb, us); 778 USB_STOR_PRINTF("command / Data returned %d, status %X\n", 779 result, us->pusb_dev->status); 780 /* if this is an CBI Protocol, get IRQ */ 781 if (us->protocol == US_PR_CBI) { 782 status = usb_stor_CBI_get_status(srb, us); 783 /* if the status is error, report it */ 784 if (status == USB_STOR_TRANSPORT_ERROR) { 785 USB_STOR_PRINTF(" USB CBI Command Error\n"); 786 return status; 787 } 788 srb->sense_buf[12] = (unsigned char)(us->ip_data >> 8); 789 srb->sense_buf[13] = (unsigned char)(us->ip_data & 0xff); 790 if (!us->ip_data) { 791 /* if the status is good, report it */ 792 if (status == USB_STOR_TRANSPORT_GOOD) { 793 USB_STOR_PRINTF(" USB CBI Command Good\n"); 794 return status; 795 } 796 } 797 } 798 /* do we have to issue an auto request? */ 799 /* HERE we have to check the result */ 800 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { 801 USB_STOR_PRINTF("ERROR %X\n", us->pusb_dev->status); 802 us->transport_reset(us); 803 return USB_STOR_TRANSPORT_ERROR; 804 } 805 if ((us->protocol == US_PR_CBI) && 806 ((srb->cmd[0] == SCSI_REQ_SENSE) || 807 (srb->cmd[0] == SCSI_INQUIRY))) { 808 /* do not issue an autorequest after request sense */ 809 USB_STOR_PRINTF("No auto request and good\n"); 810 return USB_STOR_TRANSPORT_GOOD; 811 } 812 /* issue an request_sense */ 813 memset(&psrb->cmd[0], 0, 12); 814 psrb->cmd[0] = SCSI_REQ_SENSE; 815 psrb->cmd[1] = srb->lun << 5; 816 psrb->cmd[4] = 18; 817 psrb->datalen = 18; 818 psrb->pdata = &srb->sense_buf[0]; 819 psrb->cmdlen = 12; 820 /* issue the command */ 821 result = usb_stor_CB_comdat(psrb, us); 822 USB_STOR_PRINTF("auto request returned %d\n", result); 823 /* if this is an CBI Protocol, get IRQ */ 824 if (us->protocol == US_PR_CBI) 825 status = usb_stor_CBI_get_status(psrb, us); 826 827 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { 828 USB_STOR_PRINTF(" AUTO REQUEST ERROR %d\n", 829 us->pusb_dev->status); 830 return USB_STOR_TRANSPORT_ERROR; 831 } 832 USB_STOR_PRINTF("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n", 833 srb->sense_buf[0], srb->sense_buf[2], 834 srb->sense_buf[12], srb->sense_buf[13]); 835 /* Check the auto request result */ 836 if ((srb->sense_buf[2] == 0) && 837 (srb->sense_buf[12] == 0) && 838 (srb->sense_buf[13] == 0)) { 839 /* ok, no sense */ 840 return USB_STOR_TRANSPORT_GOOD; 841 } 842 843 /* Check the auto request result */ 844 switch (srb->sense_buf[2]) { 845 case 0x01: 846 /* Recovered Error */ 847 return USB_STOR_TRANSPORT_GOOD; 848 break; 849 case 0x02: 850 /* Not Ready */ 851 if (notready++ > USB_TRANSPORT_NOT_READY_RETRY) { 852 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" 853 " 0x%02X (NOT READY)\n", srb->cmd[0], 854 srb->sense_buf[0], srb->sense_buf[2], 855 srb->sense_buf[12], srb->sense_buf[13]); 856 return USB_STOR_TRANSPORT_FAILED; 857 } else { 858 wait_ms(100); 859 goto do_retry; 860 } 861 break; 862 default: 863 if (retry++ > USB_TRANSPORT_UNKNOWN_RETRY) { 864 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" 865 " 0x%02X\n", srb->cmd[0], srb->sense_buf[0], 866 srb->sense_buf[2], srb->sense_buf[12], 867 srb->sense_buf[13]); 868 return USB_STOR_TRANSPORT_FAILED; 869 } else 870 goto do_retry; 871 break; 872 } 873 return USB_STOR_TRANSPORT_FAILED; 874 } 875 876 877 static int usb_inquiry(ccb *srb, struct us_data *ss) 878 { 879 int retry, i; 880 retry = 5; 881 do { 882 memset(&srb->cmd[0], 0, 12); 883 srb->cmd[0] = SCSI_INQUIRY; 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[4] = 18; 908 srb->datalen = 18; 909 srb->pdata = &srb->sense_buf[0]; 910 srb->cmdlen = 12; 911 ss->transport(srb, ss); 912 USB_STOR_PRINTF("Request Sense returned %02X %02X %02X\n", 913 srb->sense_buf[2], srb->sense_buf[12], 914 srb->sense_buf[13]); 915 srb->pdata = (uchar *)ptr; 916 return 0; 917 } 918 919 static int usb_test_unit_ready(ccb *srb, struct us_data *ss) 920 { 921 int retries = 10; 922 923 do { 924 memset(&srb->cmd[0], 0, 12); 925 srb->cmd[0] = SCSI_TST_U_RDY; 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->datalen = 8; 946 srb->cmdlen = 12; 947 if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) 948 return 0; 949 } while (retry--); 950 951 return -1; 952 } 953 954 static int usb_read_10(ccb *srb, struct us_data *ss, unsigned long start, 955 unsigned short blocks) 956 { 957 memset(&srb->cmd[0], 0, 12); 958 srb->cmd[0] = SCSI_READ10; 959 srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff; 960 srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff; 961 srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff; 962 srb->cmd[5] = ((unsigned char) (start)) & 0xff; 963 srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff; 964 srb->cmd[8] = (unsigned char) blocks & 0xff; 965 srb->cmdlen = 12; 966 USB_STOR_PRINTF("read10: start %lx blocks %x\n", start, blocks); 967 return ss->transport(srb, ss); 968 } 969 970 static int usb_write_10(ccb *srb, struct us_data *ss, unsigned long start, 971 unsigned short blocks) 972 { 973 memset(&srb->cmd[0], 0, 12); 974 srb->cmd[0] = SCSI_WRITE10; 975 srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff; 976 srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff; 977 srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff; 978 srb->cmd[5] = ((unsigned char) (start)) & 0xff; 979 srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff; 980 srb->cmd[8] = (unsigned char) blocks & 0xff; 981 srb->cmdlen = 12; 982 USB_STOR_PRINTF("write10: start %lx blocks %x\n", start, blocks); 983 return ss->transport(srb, ss); 984 } 985 986 987 #ifdef CONFIG_USB_BIN_FIXUP 988 /* 989 * Some USB storage devices queried for SCSI identification data respond with 990 * binary strings, which if output to the console freeze the terminal. The 991 * workaround is to modify the vendor and product strings read from such 992 * device with proper values (as reported by 'usb info'). 993 * 994 * Vendor and product length limits are taken from the definition of 995 * block_dev_desc_t in include/part.h. 996 */ 997 static void usb_bin_fixup(struct usb_device_descriptor descriptor, 998 unsigned char vendor[], 999 unsigned char product[]) { 1000 const unsigned char max_vendor_len = 40; 1001 const unsigned char max_product_len = 20; 1002 if (descriptor.idVendor == 0x0424 && descriptor.idProduct == 0x223a) { 1003 strncpy((char *)vendor, "SMSC", max_vendor_len); 1004 strncpy((char *)product, "Flash Media Cntrller", 1005 max_product_len); 1006 } 1007 } 1008 #endif /* CONFIG_USB_BIN_FIXUP */ 1009 1010 #define USB_MAX_READ_BLK 20 1011 1012 unsigned long usb_stor_read(int device, unsigned long blknr, 1013 unsigned long blkcnt, void *buffer) 1014 { 1015 unsigned long start, blks, buf_addr; 1016 unsigned short smallblks; 1017 struct usb_device *dev; 1018 int retry, i; 1019 ccb *srb = &usb_ccb; 1020 1021 if (blkcnt == 0) 1022 return 0; 1023 1024 device &= 0xff; 1025 /* Setup device */ 1026 USB_STOR_PRINTF("\nusb_read: dev %d \n", device); 1027 dev = NULL; 1028 for (i = 0; i < USB_MAX_DEVICE; i++) { 1029 dev = usb_get_dev_index(i); 1030 if (dev == NULL) 1031 return 0; 1032 if (dev->devnum == usb_dev_desc[device].target) 1033 break; 1034 } 1035 1036 usb_disable_asynch(1); /* asynch transfer not allowed */ 1037 srb->lun = usb_dev_desc[device].lun; 1038 buf_addr = (unsigned long)buffer; 1039 start = blknr; 1040 blks = blkcnt; 1041 if (usb_test_unit_ready(srb, (struct us_data *)dev->privptr)) { 1042 printf("Device NOT ready\n Request Sense returned %02X %02X" 1043 " %02X\n", srb->sense_buf[2], srb->sense_buf[12], 1044 srb->sense_buf[13]); 1045 return 0; 1046 } 1047 1048 USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx" 1049 " buffer %lx\n", device, start, blks, buf_addr); 1050 1051 do { 1052 /* XXX need some comment here */ 1053 retry = 2; 1054 srb->pdata = (unsigned char *)buf_addr; 1055 if (blks > USB_MAX_READ_BLK) 1056 smallblks = USB_MAX_READ_BLK; 1057 else 1058 smallblks = (unsigned short) blks; 1059 retry_it: 1060 if (smallblks == USB_MAX_READ_BLK) 1061 usb_show_progress(); 1062 srb->datalen = usb_dev_desc[device].blksz * smallblks; 1063 srb->pdata = (unsigned char *)buf_addr; 1064 if (usb_read_10(srb, (struct us_data *)dev->privptr, start, 1065 smallblks)) { 1066 USB_STOR_PRINTF("Read ERROR\n"); 1067 usb_request_sense(srb, (struct us_data *)dev->privptr); 1068 if (retry--) 1069 goto retry_it; 1070 blkcnt -= blks; 1071 break; 1072 } 1073 start += smallblks; 1074 blks -= smallblks; 1075 buf_addr += srb->datalen; 1076 } while (blks != 0); 1077 1078 USB_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\n", 1079 start, smallblks, buf_addr); 1080 1081 usb_disable_asynch(0); /* asynch transfer allowed */ 1082 if (blkcnt >= USB_MAX_READ_BLK) 1083 printf("\n"); 1084 return blkcnt; 1085 } 1086 1087 #define USB_MAX_WRITE_BLK 20 1088 1089 unsigned long usb_stor_write(int device, unsigned long blknr, 1090 unsigned long blkcnt, const void *buffer) 1091 { 1092 unsigned long start, blks, buf_addr; 1093 unsigned short smallblks; 1094 struct usb_device *dev; 1095 int retry, i; 1096 ccb *srb = &usb_ccb; 1097 1098 if (blkcnt == 0) 1099 return 0; 1100 1101 device &= 0xff; 1102 /* Setup device */ 1103 USB_STOR_PRINTF("\nusb_write: dev %d \n", device); 1104 dev = NULL; 1105 for (i = 0; i < USB_MAX_DEVICE; i++) { 1106 dev = usb_get_dev_index(i); 1107 if (dev == NULL) 1108 return 0; 1109 if (dev->devnum == usb_dev_desc[device].target) 1110 break; 1111 } 1112 1113 usb_disable_asynch(1); /* asynch transfer not allowed */ 1114 1115 srb->lun = usb_dev_desc[device].lun; 1116 buf_addr = (unsigned long)buffer; 1117 start = blknr; 1118 blks = blkcnt; 1119 if (usb_test_unit_ready(srb, (struct us_data *)dev->privptr)) { 1120 printf("Device NOT ready\n Request Sense returned %02X %02X" 1121 " %02X\n", srb->sense_buf[2], srb->sense_buf[12], 1122 srb->sense_buf[13]); 1123 return 0; 1124 } 1125 1126 USB_STOR_PRINTF("\nusb_write: dev %d startblk %lx, blccnt %lx" 1127 " buffer %lx\n", device, start, blks, buf_addr); 1128 1129 do { 1130 /* If write fails retry for max retry count else 1131 * return with number of blocks written successfully. 1132 */ 1133 retry = 2; 1134 srb->pdata = (unsigned char *)buf_addr; 1135 if (blks > USB_MAX_WRITE_BLK) 1136 smallblks = USB_MAX_WRITE_BLK; 1137 else 1138 smallblks = (unsigned short) blks; 1139 retry_it: 1140 if (smallblks == USB_MAX_WRITE_BLK) 1141 usb_show_progress(); 1142 srb->datalen = usb_dev_desc[device].blksz * smallblks; 1143 srb->pdata = (unsigned char *)buf_addr; 1144 if (usb_write_10(srb, (struct us_data *)dev->privptr, start, 1145 smallblks)) { 1146 USB_STOR_PRINTF("Write ERROR\n"); 1147 usb_request_sense(srb, (struct us_data *)dev->privptr); 1148 if (retry--) 1149 goto retry_it; 1150 blkcnt -= blks; 1151 break; 1152 } 1153 start += smallblks; 1154 blks -= smallblks; 1155 buf_addr += srb->datalen; 1156 } while (blks != 0); 1157 1158 USB_STOR_PRINTF("usb_write: end startblk %lx, blccnt %x buffer %lx\n", 1159 start, smallblks, buf_addr); 1160 1161 usb_disable_asynch(0); /* asynch transfer allowed */ 1162 if (blkcnt >= USB_MAX_WRITE_BLK) 1163 printf("\n"); 1164 return blkcnt; 1165 1166 } 1167 1168 /* Probe to see if a new device is actually a Storage device */ 1169 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, 1170 struct us_data *ss) 1171 { 1172 struct usb_interface *iface; 1173 int i; 1174 unsigned int flags = 0; 1175 1176 int protocol = 0; 1177 int subclass = 0; 1178 1179 /* let's examine the device now */ 1180 iface = &dev->config.if_desc[ifnum]; 1181 1182 #if 0 1183 /* this is the place to patch some storage devices */ 1184 USB_STOR_PRINTF("iVendor %X iProduct %X\n", dev->descriptor.idVendor, 1185 dev->descriptor.idProduct); 1186 1187 if ((dev->descriptor.idVendor) == 0x066b && 1188 (dev->descriptor.idProduct) == 0x0103) { 1189 USB_STOR_PRINTF("patched for E-USB\n"); 1190 protocol = US_PR_CB; 1191 subclass = US_SC_UFI; /* an assumption */ 1192 } 1193 #endif 1194 1195 if (dev->descriptor.bDeviceClass != 0 || 1196 iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE || 1197 iface->desc.bInterfaceSubClass < US_SC_MIN || 1198 iface->desc.bInterfaceSubClass > US_SC_MAX) { 1199 /* if it's not a mass storage, we go no further */ 1200 return 0; 1201 } 1202 1203 memset(ss, 0, sizeof(struct us_data)); 1204 1205 /* At this point, we know we've got a live one */ 1206 USB_STOR_PRINTF("\n\nUSB Mass Storage device detected\n"); 1207 1208 /* Initialize the us_data structure with some useful info */ 1209 ss->flags = flags; 1210 ss->ifnum = ifnum; 1211 ss->pusb_dev = dev; 1212 ss->attention_done = 0; 1213 1214 /* If the device has subclass and protocol, then use that. Otherwise, 1215 * take data from the specific interface. 1216 */ 1217 if (subclass) { 1218 ss->subclass = subclass; 1219 ss->protocol = protocol; 1220 } else { 1221 ss->subclass = iface->desc.bInterfaceSubClass; 1222 ss->protocol = iface->desc.bInterfaceProtocol; 1223 } 1224 1225 /* set the handler pointers based on the protocol */ 1226 USB_STOR_PRINTF("Transport: "); 1227 switch (ss->protocol) { 1228 case US_PR_CB: 1229 USB_STOR_PRINTF("Control/Bulk\n"); 1230 ss->transport = usb_stor_CB_transport; 1231 ss->transport_reset = usb_stor_CB_reset; 1232 break; 1233 1234 case US_PR_CBI: 1235 USB_STOR_PRINTF("Control/Bulk/Interrupt\n"); 1236 ss->transport = usb_stor_CB_transport; 1237 ss->transport_reset = usb_stor_CB_reset; 1238 break; 1239 case US_PR_BULK: 1240 USB_STOR_PRINTF("Bulk/Bulk/Bulk\n"); 1241 ss->transport = usb_stor_BBB_transport; 1242 ss->transport_reset = usb_stor_BBB_reset; 1243 break; 1244 default: 1245 printf("USB Storage Transport unknown / not yet implemented\n"); 1246 return 0; 1247 break; 1248 } 1249 1250 /* 1251 * We are expecting a minimum of 2 endpoints - in and out (bulk). 1252 * An optional interrupt is OK (necessary for CBI protocol). 1253 * We will ignore any others. 1254 */ 1255 for (i = 0; i < iface->desc.bNumEndpoints; i++) { 1256 /* is it an BULK endpoint? */ 1257 if ((iface->ep_desc[i].bmAttributes & 1258 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { 1259 if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN) 1260 ss->ep_in = iface->ep_desc[i].bEndpointAddress & 1261 USB_ENDPOINT_NUMBER_MASK; 1262 else 1263 ss->ep_out = 1264 iface->ep_desc[i].bEndpointAddress & 1265 USB_ENDPOINT_NUMBER_MASK; 1266 } 1267 1268 /* is it an interrupt endpoint? */ 1269 if ((iface->ep_desc[i].bmAttributes & 1270 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { 1271 ss->ep_int = iface->ep_desc[i].bEndpointAddress & 1272 USB_ENDPOINT_NUMBER_MASK; 1273 ss->irqinterval = iface->ep_desc[i].bInterval; 1274 } 1275 } 1276 USB_STOR_PRINTF("Endpoints In %d Out %d Int %d\n", 1277 ss->ep_in, ss->ep_out, ss->ep_int); 1278 1279 /* Do some basic sanity checks, and bail if we find a problem */ 1280 if (usb_set_interface(dev, iface->desc.bInterfaceNumber, 0) || 1281 !ss->ep_in || !ss->ep_out || 1282 (ss->protocol == US_PR_CBI && ss->ep_int == 0)) { 1283 USB_STOR_PRINTF("Problems with device\n"); 1284 return 0; 1285 } 1286 /* set class specific stuff */ 1287 /* We only handle certain protocols. Currently, these are 1288 * the only ones. 1289 * The SFF8070 accepts the requests used in u-boot 1290 */ 1291 if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI && 1292 ss->subclass != US_SC_8070) { 1293 printf("Sorry, protocol %d not yet supported.\n", ss->subclass); 1294 return 0; 1295 } 1296 if (ss->ep_int) { 1297 /* we had found an interrupt endpoint, prepare irq pipe 1298 * set up the IRQ pipe and handler 1299 */ 1300 ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255; 1301 ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int); 1302 ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe); 1303 dev->irq_handle = usb_stor_irq; 1304 } 1305 dev->privptr = (void *)ss; 1306 return 1; 1307 } 1308 1309 int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, 1310 block_dev_desc_t *dev_desc) 1311 { 1312 unsigned char perq, modi; 1313 unsigned long cap[2]; 1314 unsigned long *capacity, *blksz; 1315 ccb *pccb = &usb_ccb; 1316 1317 /* for some reasons a couple of devices would not survive this reset */ 1318 if ( 1319 /* Sony USM256E */ 1320 (dev->descriptor.idVendor == 0x054c && 1321 dev->descriptor.idProduct == 0x019e) 1322 || 1323 /* USB007 Mini-USB2 Flash Drive */ 1324 (dev->descriptor.idVendor == 0x066f && 1325 dev->descriptor.idProduct == 0x2010) 1326 || 1327 /* SanDisk Corporation Cruzer Micro 20044318410546613953 */ 1328 (dev->descriptor.idVendor == 0x0781 && 1329 dev->descriptor.idProduct == 0x5151) 1330 || 1331 /* 1332 * SanDisk Corporation U3 Cruzer Micro 1/4GB 1333 * Flash Drive 000016244373FFB4 1334 */ 1335 (dev->descriptor.idVendor == 0x0781 && 1336 dev->descriptor.idProduct == 0x5406) 1337 ) 1338 USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\n"); 1339 else 1340 ss->transport_reset(ss); 1341 1342 pccb->pdata = usb_stor_buf; 1343 1344 dev_desc->target = dev->devnum; 1345 pccb->lun = dev_desc->lun; 1346 USB_STOR_PRINTF(" address %d\n", dev_desc->target); 1347 1348 if (usb_inquiry(pccb, ss)) 1349 return -1; 1350 1351 perq = usb_stor_buf[0]; 1352 modi = usb_stor_buf[1]; 1353 1354 if ((perq & 0x1f) == 0x1f) { 1355 /* skip unknown devices */ 1356 return 0; 1357 } 1358 if ((modi&0x80) == 0x80) { 1359 /* drive is removable */ 1360 dev_desc->removable = 1; 1361 } 1362 memcpy(&dev_desc->vendor[0], &usb_stor_buf[8], 8); 1363 memcpy(&dev_desc->product[0], &usb_stor_buf[16], 16); 1364 memcpy(&dev_desc->revision[0], &usb_stor_buf[32], 4); 1365 dev_desc->vendor[8] = 0; 1366 dev_desc->product[16] = 0; 1367 dev_desc->revision[4] = 0; 1368 #ifdef CONFIG_USB_BIN_FIXUP 1369 usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor, 1370 (uchar *)dev_desc->product); 1371 #endif /* CONFIG_USB_BIN_FIXUP */ 1372 USB_STOR_PRINTF("ISO Vers %X, Response Data %X\n", usb_stor_buf[2], 1373 usb_stor_buf[3]); 1374 if (usb_test_unit_ready(pccb, ss)) { 1375 printf("Device NOT ready\n" 1376 " Request Sense returned %02X %02X %02X\n", 1377 pccb->sense_buf[2], pccb->sense_buf[12], 1378 pccb->sense_buf[13]); 1379 if (dev_desc->removable == 1) { 1380 dev_desc->type = perq; 1381 return 1; 1382 } 1383 return 0; 1384 } 1385 pccb->pdata = (unsigned char *)&cap[0]; 1386 memset(pccb->pdata, 0, 8); 1387 if (usb_read_capacity(pccb, ss) != 0) { 1388 printf("READ_CAP ERROR\n"); 1389 cap[0] = 2880; 1390 cap[1] = 0x200; 1391 } 1392 USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\n", cap[0], 1393 cap[1]); 1394 #if 0 1395 if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */ 1396 cap[0] >>= 16; 1397 #endif 1398 cap[0] = cpu_to_be32(cap[0]); 1399 cap[1] = cpu_to_be32(cap[1]); 1400 1401 /* this assumes bigendian! */ 1402 cap[0] += 1; 1403 capacity = &cap[0]; 1404 blksz = &cap[1]; 1405 USB_STOR_PRINTF("Capacity = 0x%lx, blocksz = 0x%lx\n", 1406 *capacity, *blksz); 1407 dev_desc->lba = *capacity; 1408 dev_desc->blksz = *blksz; 1409 dev_desc->type = perq; 1410 USB_STOR_PRINTF(" address %d\n", dev_desc->target); 1411 USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type); 1412 1413 init_part(dev_desc); 1414 1415 USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type); 1416 return 1; 1417 } 1418