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_devs) ? &usb_dev_desc[index] : NULL; 179 } 180 181 182 void usb_show_progress(void) 183 { 184 debug("."); 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].if_type = IF_TYPE_USB; 228 usb_dev_desc[i].dev = i; 229 usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN; 230 usb_dev_desc[i].target = 0xff; 231 usb_dev_desc[i].type = DEV_TYPE_UNKNOWN; 232 usb_dev_desc[i].block_read = usb_stor_read; 233 usb_dev_desc[i].block_write = usb_stor_write; 234 } 235 236 usb_max_devs = 0; 237 for (i = 0; i < USB_MAX_DEVICE; i++) { 238 dev = usb_get_dev_index(i); /* get device */ 239 USB_STOR_PRINTF("i=%d\n", i); 240 if (dev == NULL) 241 break; /* no more devices avaiable */ 242 243 if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { 244 /* ok, it is a storage devices 245 * get info and fill it in 246 */ 247 if (usb_stor_get_info(dev, &usb_stor[usb_max_devs], 248 &usb_dev_desc[usb_max_devs]) == 1) 249 usb_max_devs++; 250 } 251 /* if storage device */ 252 if (usb_max_devs == USB_MAX_STOR_DEV) { 253 printf("max USB Storage Device reached: %d stopping\n", 254 usb_max_devs); 255 break; 256 } 257 } /* for */ 258 259 usb_disable_asynch(0); /* asynch transfer allowed */ 260 printf("%d Storage Device(s) found\n", usb_max_devs); 261 if (usb_max_devs > 0) 262 return 0; 263 return -1; 264 } 265 266 static int usb_stor_irq(struct usb_device *dev) 267 { 268 struct us_data *us; 269 us = (struct us_data *)dev->privptr; 270 271 if (us->ip_wanted) 272 us->ip_wanted = 0; 273 return 0; 274 } 275 276 277 #ifdef USB_STOR_DEBUG 278 279 static void usb_show_srb(ccb *pccb) 280 { 281 int i; 282 printf("SRB: len %d datalen 0x%lX\n ", pccb->cmdlen, pccb->datalen); 283 for (i = 0; i < 12; i++) 284 printf("%02X ", pccb->cmd[i]); 285 printf("\n"); 286 } 287 288 static void display_int_status(unsigned long tmp) 289 { 290 printf("Status: %s %s %s %s %s %s %s\n", 291 (tmp & USB_ST_ACTIVE) ? "Active" : "", 292 (tmp & USB_ST_STALLED) ? "Stalled" : "", 293 (tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "", 294 (tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "", 295 (tmp & USB_ST_NAK_REC) ? "NAKed" : "", 296 (tmp & USB_ST_CRC_ERR) ? "CRC Error" : "", 297 (tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : ""); 298 } 299 #endif 300 /*********************************************************************** 301 * Data transfer routines 302 ***********************************************************************/ 303 304 static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length) 305 { 306 int max_size; 307 int this_xfer; 308 int result; 309 int partial; 310 int maxtry; 311 int stat; 312 313 /* determine the maximum packet size for these transfers */ 314 max_size = usb_maxpacket(us->pusb_dev, pipe) * 16; 315 316 /* while we have data left to transfer */ 317 while (length) { 318 319 /* calculate how long this will be -- maximum or a remainder */ 320 this_xfer = length > max_size ? max_size : length; 321 length -= this_xfer; 322 323 /* setup the retry counter */ 324 maxtry = 10; 325 326 /* set up the transfer loop */ 327 do { 328 /* transfer the data */ 329 USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\n", 330 (unsigned int)buf, this_xfer, 11 - maxtry); 331 result = usb_bulk_msg(us->pusb_dev, pipe, buf, 332 this_xfer, &partial, 333 USB_CNTL_TIMEOUT * 5); 334 USB_STOR_PRINTF("bulk_msg returned %d xferred %d/%d\n", 335 result, partial, this_xfer); 336 if (us->pusb_dev->status != 0) { 337 /* if we stall, we need to clear it before 338 * we go on 339 */ 340 #ifdef USB_STOR_DEBUG 341 display_int_status(us->pusb_dev->status); 342 #endif 343 if (us->pusb_dev->status & USB_ST_STALLED) { 344 USB_STOR_PRINTF("stalled ->clearing endpoint halt for pipe 0x%x\n", pipe); 345 stat = us->pusb_dev->status; 346 usb_clear_halt(us->pusb_dev, pipe); 347 us->pusb_dev->status = stat; 348 if (this_xfer == partial) { 349 USB_STOR_PRINTF("bulk transferred with error %X, but data ok\n", us->pusb_dev->status); 350 return 0; 351 } 352 else 353 return result; 354 } 355 if (us->pusb_dev->status & USB_ST_NAK_REC) { 356 USB_STOR_PRINTF("Device NAKed bulk_msg\n"); 357 return result; 358 } 359 USB_STOR_PRINTF("bulk transferred with error"); 360 if (this_xfer == partial) { 361 USB_STOR_PRINTF(" %d, but data ok\n", 362 us->pusb_dev->status); 363 return 0; 364 } 365 /* if our try counter reaches 0, bail out */ 366 USB_STOR_PRINTF(" %d, data %d\n", 367 us->pusb_dev->status, partial); 368 if (!maxtry--) 369 return result; 370 } 371 /* update to show what data was transferred */ 372 this_xfer -= partial; 373 buf += partial; 374 /* continue until this transfer is done */ 375 } while (this_xfer); 376 } 377 378 /* if we get here, we're done and successful */ 379 return 0; 380 } 381 382 static int usb_stor_BBB_reset(struct us_data *us) 383 { 384 int result; 385 unsigned int pipe; 386 387 /* 388 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class) 389 * 390 * For Reset Recovery the host shall issue in the following order: 391 * a) a Bulk-Only Mass Storage Reset 392 * b) a Clear Feature HALT to the Bulk-In endpoint 393 * c) a Clear Feature HALT to the Bulk-Out endpoint 394 * 395 * This is done in 3 steps. 396 * 397 * If the reset doesn't succeed, the device should be port reset. 398 * 399 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c. 400 */ 401 USB_STOR_PRINTF("BBB_reset\n"); 402 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 403 US_BBB_RESET, 404 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 405 0, us->ifnum, 0, 0, USB_CNTL_TIMEOUT * 5); 406 407 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { 408 USB_STOR_PRINTF("RESET:stall\n"); 409 return -1; 410 } 411 412 /* long wait for reset */ 413 wait_ms(150); 414 USB_STOR_PRINTF("BBB_reset result %d: status %X reset\n", result, 415 us->pusb_dev->status); 416 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 417 result = usb_clear_halt(us->pusb_dev, pipe); 418 /* long wait for reset */ 419 wait_ms(150); 420 USB_STOR_PRINTF("BBB_reset result %d: status %X clearing IN endpoint\n", 421 result, us->pusb_dev->status); 422 /* long wait for reset */ 423 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 424 result = usb_clear_halt(us->pusb_dev, pipe); 425 wait_ms(150); 426 USB_STOR_PRINTF("BBB_reset result %d: status %X" 427 " clearing OUT endpoint\n", result, 428 us->pusb_dev->status); 429 USB_STOR_PRINTF("BBB_reset done\n"); 430 return 0; 431 } 432 433 /* FIXME: this reset function doesn't really reset the port, and it 434 * should. Actually it should probably do what it's doing here, and 435 * reset the port physically 436 */ 437 static int usb_stor_CB_reset(struct us_data *us) 438 { 439 unsigned char cmd[12]; 440 int result; 441 442 USB_STOR_PRINTF("CB_reset\n"); 443 memset(cmd, 0xff, sizeof(cmd)); 444 cmd[0] = SCSI_SEND_DIAG; 445 cmd[1] = 4; 446 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 447 US_CBI_ADSC, 448 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 449 0, us->ifnum, cmd, sizeof(cmd), 450 USB_CNTL_TIMEOUT * 5); 451 452 /* long wait for reset */ 453 wait_ms(1500); 454 USB_STOR_PRINTF("CB_reset result %d: status %X" 455 " clearing endpoint halt\n", result, 456 us->pusb_dev->status); 457 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in)); 458 usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out)); 459 460 USB_STOR_PRINTF("CB_reset done\n"); 461 return 0; 462 } 463 464 /* 465 * Set up the command for a BBB device. Note that the actual SCSI 466 * command is copied into cbw.CBWCDB. 467 */ 468 int usb_stor_BBB_comdat(ccb *srb, struct us_data *us) 469 { 470 int result; 471 int actlen; 472 int dir_in; 473 unsigned int pipe; 474 umass_bbb_cbw_t cbw; 475 476 dir_in = US_DIRECTION(srb->cmd[0]); 477 478 #ifdef BBB_COMDAT_TRACE 479 printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\n", 480 dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, 481 srb->pdata); 482 if (srb->cmdlen) { 483 for (result = 0; result < srb->cmdlen; result++) 484 printf("cmd[%d] %#x ", result, srb->cmd[result]); 485 printf("\n"); 486 } 487 #endif 488 /* sanity checks */ 489 if (!(srb->cmdlen <= CBWCDBLENGTH)) { 490 USB_STOR_PRINTF("usb_stor_BBB_comdat:cmdlen too large\n"); 491 return -1; 492 } 493 494 /* always OUT to the ep */ 495 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 496 497 cbw.dCBWSignature = cpu_to_le32(CBWSIGNATURE); 498 cbw.dCBWTag = cpu_to_le32(CBWTag++); 499 cbw.dCBWDataTransferLength = cpu_to_le32(srb->datalen); 500 cbw.bCBWFlags = (dir_in ? CBWFLAGS_IN : CBWFLAGS_OUT); 501 cbw.bCBWLUN = srb->lun; 502 cbw.bCDBLength = srb->cmdlen; 503 /* copy the command data into the CBW command data buffer */ 504 /* DST SRC LEN!!! */ 505 memcpy(cbw.CBWCDB, srb->cmd, srb->cmdlen); 506 result = usb_bulk_msg(us->pusb_dev, pipe, &cbw, UMASS_BBB_CBW_SIZE, 507 &actlen, USB_CNTL_TIMEOUT * 5); 508 if (result < 0) 509 USB_STOR_PRINTF("usb_stor_BBB_comdat:usb_bulk_msg error\n"); 510 return result; 511 } 512 513 /* FIXME: we also need a CBI_command which sets up the completion 514 * interrupt, and waits for it 515 */ 516 int usb_stor_CB_comdat(ccb *srb, struct us_data *us) 517 { 518 int result = 0; 519 int dir_in, retry; 520 unsigned int pipe; 521 unsigned long status; 522 523 retry = 5; 524 dir_in = US_DIRECTION(srb->cmd[0]); 525 526 if (dir_in) 527 pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 528 else 529 pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 530 531 while (retry--) { 532 USB_STOR_PRINTF("CBI gets a command: Try %d\n", 5 - retry); 533 #ifdef USB_STOR_DEBUG 534 usb_show_srb(srb); 535 #endif 536 /* let's send the command via the control pipe */ 537 result = usb_control_msg(us->pusb_dev, 538 usb_sndctrlpipe(us->pusb_dev , 0), 539 US_CBI_ADSC, 540 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 541 0, us->ifnum, 542 srb->cmd, srb->cmdlen, 543 USB_CNTL_TIMEOUT * 5); 544 USB_STOR_PRINTF("CB_transport: control msg returned %d," 545 " status %X\n", result, us->pusb_dev->status); 546 /* check the return code for the command */ 547 if (result < 0) { 548 if (us->pusb_dev->status & USB_ST_STALLED) { 549 status = us->pusb_dev->status; 550 USB_STOR_PRINTF(" stall during command found," 551 " clear pipe\n"); 552 usb_clear_halt(us->pusb_dev, 553 usb_sndctrlpipe(us->pusb_dev, 0)); 554 us->pusb_dev->status = status; 555 } 556 USB_STOR_PRINTF(" error during command %02X" 557 " Stat = %X\n", srb->cmd[0], 558 us->pusb_dev->status); 559 return result; 560 } 561 /* transfer the data payload for this command, if one exists*/ 562 563 USB_STOR_PRINTF("CB_transport: control msg returned %d," 564 " direction is %s to go 0x%lx\n", result, 565 dir_in ? "IN" : "OUT", srb->datalen); 566 if (srb->datalen) { 567 result = us_one_transfer(us, pipe, (char *)srb->pdata, 568 srb->datalen); 569 USB_STOR_PRINTF("CBI attempted to transfer data," 570 " result is %d status %lX, len %d\n", 571 result, us->pusb_dev->status, 572 us->pusb_dev->act_len); 573 if (!(us->pusb_dev->status & USB_ST_NAK_REC)) 574 break; 575 } /* if (srb->datalen) */ 576 else 577 break; 578 } 579 /* return result */ 580 581 return result; 582 } 583 584 585 int usb_stor_CBI_get_status(ccb *srb, struct us_data *us) 586 { 587 int timeout; 588 589 us->ip_wanted = 1; 590 submit_int_msg(us->pusb_dev, us->irqpipe, 591 (void *) &us->ip_data, us->irqmaxp, us->irqinterval); 592 timeout = 1000; 593 while (timeout--) { 594 if ((volatile int *) us->ip_wanted == 0) 595 break; 596 wait_ms(10); 597 } 598 if (us->ip_wanted) { 599 printf(" Did not get interrupt on CBI\n"); 600 us->ip_wanted = 0; 601 return USB_STOR_TRANSPORT_ERROR; 602 } 603 USB_STOR_PRINTF 604 ("Got interrupt data 0x%x, transfered %d status 0x%lX\n", 605 us->ip_data, us->pusb_dev->irq_act_len, 606 us->pusb_dev->irq_status); 607 /* UFI gives us ASC and ASCQ, like a request sense */ 608 if (us->subclass == US_SC_UFI) { 609 if (srb->cmd[0] == SCSI_REQ_SENSE || 610 srb->cmd[0] == SCSI_INQUIRY) 611 return USB_STOR_TRANSPORT_GOOD; /* Good */ 612 else if (us->ip_data) 613 return USB_STOR_TRANSPORT_FAILED; 614 else 615 return USB_STOR_TRANSPORT_GOOD; 616 } 617 /* otherwise, we interpret the data normally */ 618 switch (us->ip_data) { 619 case 0x0001: 620 return USB_STOR_TRANSPORT_GOOD; 621 case 0x0002: 622 return USB_STOR_TRANSPORT_FAILED; 623 default: 624 return USB_STOR_TRANSPORT_ERROR; 625 } /* switch */ 626 return USB_STOR_TRANSPORT_ERROR; 627 } 628 629 #define USB_TRANSPORT_UNKNOWN_RETRY 5 630 #define USB_TRANSPORT_NOT_READY_RETRY 10 631 632 /* clear a stall on an endpoint - special for BBB devices */ 633 int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt) 634 { 635 int result; 636 637 /* ENDPOINT_HALT = 0, so set value to 0 */ 638 result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), 639 USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 640 0, endpt, 0, 0, USB_CNTL_TIMEOUT * 5); 641 return result; 642 } 643 644 int usb_stor_BBB_transport(ccb *srb, struct us_data *us) 645 { 646 int result, retry; 647 int dir_in; 648 int actlen, data_actlen; 649 unsigned int pipe, pipein, pipeout; 650 umass_bbb_csw_t csw; 651 #ifdef BBB_XPORT_TRACE 652 unsigned char *ptr; 653 int index; 654 #endif 655 656 dir_in = US_DIRECTION(srb->cmd[0]); 657 658 /* COMMAND phase */ 659 USB_STOR_PRINTF("COMMAND phase\n"); 660 result = usb_stor_BBB_comdat(srb, us); 661 if (result < 0) { 662 USB_STOR_PRINTF("failed to send CBW status %ld\n", 663 us->pusb_dev->status); 664 usb_stor_BBB_reset(us); 665 return USB_STOR_TRANSPORT_FAILED; 666 } 667 wait_ms(5); 668 pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); 669 pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out); 670 /* DATA phase + error handling */ 671 data_actlen = 0; 672 /* no data, go immediately to the STATUS phase */ 673 if (srb->datalen == 0) 674 goto st; 675 USB_STOR_PRINTF("DATA phase\n"); 676 if (dir_in) 677 pipe = pipein; 678 else 679 pipe = pipeout; 680 result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen, 681 &data_actlen, USB_CNTL_TIMEOUT * 5); 682 /* special handling of STALL in DATA phase */ 683 if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { 684 USB_STOR_PRINTF("DATA:stall\n"); 685 /* clear the STALL on the endpoint */ 686 result = usb_stor_BBB_clear_endpt_stall(us, 687 dir_in ? us->ep_in : us->ep_out); 688 if (result >= 0) 689 /* continue on to STATUS phase */ 690 goto st; 691 } 692 if (result < 0) { 693 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", 694 us->pusb_dev->status); 695 usb_stor_BBB_reset(us); 696 return USB_STOR_TRANSPORT_FAILED; 697 } 698 #ifdef BBB_XPORT_TRACE 699 for (index = 0; index < data_actlen; index++) 700 printf("pdata[%d] %#x ", index, srb->pdata[index]); 701 printf("\n"); 702 #endif 703 /* STATUS phase + error handling */ 704 st: 705 retry = 0; 706 again: 707 USB_STOR_PRINTF("STATUS phase\n"); 708 result = usb_bulk_msg(us->pusb_dev, pipein, &csw, UMASS_BBB_CSW_SIZE, 709 &actlen, USB_CNTL_TIMEOUT*5); 710 711 /* special handling of STALL in STATUS phase */ 712 if ((result < 0) && (retry < 1) && 713 (us->pusb_dev->status & USB_ST_STALLED)) { 714 USB_STOR_PRINTF("STATUS:stall\n"); 715 /* clear the STALL on the endpoint */ 716 result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in); 717 if (result >= 0 && (retry++ < 1)) 718 /* do a retry */ 719 goto again; 720 } 721 if (result < 0) { 722 USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", 723 us->pusb_dev->status); 724 usb_stor_BBB_reset(us); 725 return USB_STOR_TRANSPORT_FAILED; 726 } 727 #ifdef BBB_XPORT_TRACE 728 ptr = (unsigned char *)&csw; 729 for (index = 0; index < UMASS_BBB_CSW_SIZE; index++) 730 printf("ptr[%d] %#x ", index, ptr[index]); 731 printf("\n"); 732 #endif 733 /* misuse pipe to get the residue */ 734 pipe = le32_to_cpu(csw.dCSWDataResidue); 735 if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0) 736 pipe = srb->datalen - data_actlen; 737 if (CSWSIGNATURE != le32_to_cpu(csw.dCSWSignature)) { 738 USB_STOR_PRINTF("!CSWSIGNATURE\n"); 739 usb_stor_BBB_reset(us); 740 return USB_STOR_TRANSPORT_FAILED; 741 } else if ((CBWTag - 1) != le32_to_cpu(csw.dCSWTag)) { 742 USB_STOR_PRINTF("!Tag\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 (csw.bCSWStatus == CSWSTATUS_PHASE) { 750 USB_STOR_PRINTF("=PHASE\n"); 751 usb_stor_BBB_reset(us); 752 return USB_STOR_TRANSPORT_FAILED; 753 } else if (data_actlen > srb->datalen) { 754 USB_STOR_PRINTF("transferred %dB instead of %dB\n", 755 data_actlen, srb->datalen); 756 return USB_STOR_TRANSPORT_FAILED; 757 } else if (csw.bCSWStatus == CSWSTATUS_FAILED) { 758 USB_STOR_PRINTF("FAILED\n"); 759 return USB_STOR_TRANSPORT_FAILED; 760 } 761 762 return result; 763 } 764 765 int usb_stor_CB_transport(ccb *srb, struct us_data *us) 766 { 767 int result, status; 768 ccb *psrb; 769 ccb reqsrb; 770 int retry, notready; 771 772 psrb = &reqsrb; 773 status = USB_STOR_TRANSPORT_GOOD; 774 retry = 0; 775 notready = 0; 776 /* issue the command */ 777 do_retry: 778 result = usb_stor_CB_comdat(srb, us); 779 USB_STOR_PRINTF("command / Data returned %d, status %X\n", 780 result, us->pusb_dev->status); 781 /* if this is an CBI Protocol, get IRQ */ 782 if (us->protocol == US_PR_CBI) { 783 status = usb_stor_CBI_get_status(srb, us); 784 /* if the status is error, report it */ 785 if (status == USB_STOR_TRANSPORT_ERROR) { 786 USB_STOR_PRINTF(" USB CBI Command Error\n"); 787 return status; 788 } 789 srb->sense_buf[12] = (unsigned char)(us->ip_data >> 8); 790 srb->sense_buf[13] = (unsigned char)(us->ip_data & 0xff); 791 if (!us->ip_data) { 792 /* if the status is good, report it */ 793 if (status == USB_STOR_TRANSPORT_GOOD) { 794 USB_STOR_PRINTF(" USB CBI Command Good\n"); 795 return status; 796 } 797 } 798 } 799 /* do we have to issue an auto request? */ 800 /* HERE we have to check the result */ 801 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { 802 USB_STOR_PRINTF("ERROR %X\n", us->pusb_dev->status); 803 us->transport_reset(us); 804 return USB_STOR_TRANSPORT_ERROR; 805 } 806 if ((us->protocol == US_PR_CBI) && 807 ((srb->cmd[0] == SCSI_REQ_SENSE) || 808 (srb->cmd[0] == SCSI_INQUIRY))) { 809 /* do not issue an autorequest after request sense */ 810 USB_STOR_PRINTF("No auto request and good\n"); 811 return USB_STOR_TRANSPORT_GOOD; 812 } 813 /* issue an request_sense */ 814 memset(&psrb->cmd[0], 0, 12); 815 psrb->cmd[0] = SCSI_REQ_SENSE; 816 psrb->cmd[1] = srb->lun << 5; 817 psrb->cmd[4] = 18; 818 psrb->datalen = 18; 819 psrb->pdata = &srb->sense_buf[0]; 820 psrb->cmdlen = 12; 821 /* issue the command */ 822 result = usb_stor_CB_comdat(psrb, us); 823 USB_STOR_PRINTF("auto request returned %d\n", result); 824 /* if this is an CBI Protocol, get IRQ */ 825 if (us->protocol == US_PR_CBI) 826 status = usb_stor_CBI_get_status(psrb, us); 827 828 if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { 829 USB_STOR_PRINTF(" AUTO REQUEST ERROR %d\n", 830 us->pusb_dev->status); 831 return USB_STOR_TRANSPORT_ERROR; 832 } 833 USB_STOR_PRINTF("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n", 834 srb->sense_buf[0], srb->sense_buf[2], 835 srb->sense_buf[12], srb->sense_buf[13]); 836 /* Check the auto request result */ 837 if ((srb->sense_buf[2] == 0) && 838 (srb->sense_buf[12] == 0) && 839 (srb->sense_buf[13] == 0)) { 840 /* ok, no sense */ 841 return USB_STOR_TRANSPORT_GOOD; 842 } 843 844 /* Check the auto request result */ 845 switch (srb->sense_buf[2]) { 846 case 0x01: 847 /* Recovered Error */ 848 return USB_STOR_TRANSPORT_GOOD; 849 break; 850 case 0x02: 851 /* Not Ready */ 852 if (notready++ > USB_TRANSPORT_NOT_READY_RETRY) { 853 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" 854 " 0x%02X (NOT READY)\n", srb->cmd[0], 855 srb->sense_buf[0], srb->sense_buf[2], 856 srb->sense_buf[12], srb->sense_buf[13]); 857 return USB_STOR_TRANSPORT_FAILED; 858 } else { 859 wait_ms(100); 860 goto do_retry; 861 } 862 break; 863 default: 864 if (retry++ > USB_TRANSPORT_UNKNOWN_RETRY) { 865 printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" 866 " 0x%02X\n", srb->cmd[0], srb->sense_buf[0], 867 srb->sense_buf[2], srb->sense_buf[12], 868 srb->sense_buf[13]); 869 return USB_STOR_TRANSPORT_FAILED; 870 } else 871 goto do_retry; 872 break; 873 } 874 return USB_STOR_TRANSPORT_FAILED; 875 } 876 877 878 static int usb_inquiry(ccb *srb, struct us_data *ss) 879 { 880 int retry, i; 881 retry = 5; 882 do { 883 memset(&srb->cmd[0], 0, 12); 884 srb->cmd[0] = SCSI_INQUIRY; 885 srb->cmd[4] = 36; 886 srb->datalen = 36; 887 srb->cmdlen = 12; 888 i = ss->transport(srb, ss); 889 USB_STOR_PRINTF("inquiry returns %d\n", i); 890 if (i == 0) 891 break; 892 } while (--retry); 893 894 if (!retry) { 895 printf("error in inquiry\n"); 896 return -1; 897 } 898 return 0; 899 } 900 901 static int usb_request_sense(ccb *srb, struct us_data *ss) 902 { 903 char *ptr; 904 905 ptr = (char *)srb->pdata; 906 memset(&srb->cmd[0], 0, 12); 907 srb->cmd[0] = SCSI_REQ_SENSE; 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->datalen = 0; 928 srb->cmdlen = 12; 929 if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) 930 return 0; 931 usb_request_sense(srb, ss); 932 wait_ms(100); 933 } while (retries--); 934 935 return -1; 936 } 937 938 static int usb_read_capacity(ccb *srb, struct us_data *ss) 939 { 940 int retry; 941 /* XXX retries */ 942 retry = 3; 943 do { 944 memset(&srb->cmd[0], 0, 12); 945 srb->cmd[0] = SCSI_RD_CAPAC; 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[2] = ((unsigned char) (start >> 24)) & 0xff; 961 srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff; 962 srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff; 963 srb->cmd[5] = ((unsigned char) (start)) & 0xff; 964 srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff; 965 srb->cmd[8] = (unsigned char) blocks & 0xff; 966 srb->cmdlen = 12; 967 USB_STOR_PRINTF("read10: start %lx blocks %x\n", start, blocks); 968 return ss->transport(srb, ss); 969 } 970 971 static int usb_write_10(ccb *srb, struct us_data *ss, unsigned long start, 972 unsigned short blocks) 973 { 974 memset(&srb->cmd[0], 0, 12); 975 srb->cmd[0] = SCSI_WRITE10; 976 srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff; 977 srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff; 978 srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff; 979 srb->cmd[5] = ((unsigned char) (start)) & 0xff; 980 srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff; 981 srb->cmd[8] = (unsigned char) blocks & 0xff; 982 srb->cmdlen = 12; 983 USB_STOR_PRINTF("write10: start %lx blocks %x\n", start, blocks); 984 return ss->transport(srb, ss); 985 } 986 987 988 #ifdef CONFIG_USB_BIN_FIXUP 989 /* 990 * Some USB storage devices queried for SCSI identification data respond with 991 * binary strings, which if output to the console freeze the terminal. The 992 * workaround is to modify the vendor and product strings read from such 993 * device with proper values (as reported by 'usb info'). 994 * 995 * Vendor and product length limits are taken from the definition of 996 * block_dev_desc_t in include/part.h. 997 */ 998 static void usb_bin_fixup(struct usb_device_descriptor descriptor, 999 unsigned char vendor[], 1000 unsigned char product[]) { 1001 const unsigned char max_vendor_len = 40; 1002 const unsigned char max_product_len = 20; 1003 if (descriptor.idVendor == 0x0424 && descriptor.idProduct == 0x223a) { 1004 strncpy((char *)vendor, "SMSC", max_vendor_len); 1005 strncpy((char *)product, "Flash Media Cntrller", 1006 max_product_len); 1007 } 1008 } 1009 #endif /* CONFIG_USB_BIN_FIXUP */ 1010 1011 #define USB_MAX_READ_BLK 20 1012 1013 unsigned long usb_stor_read(int device, unsigned long blknr, 1014 unsigned long blkcnt, void *buffer) 1015 { 1016 unsigned long start, blks, buf_addr; 1017 unsigned short smallblks; 1018 struct usb_device *dev; 1019 int retry, i; 1020 ccb *srb = &usb_ccb; 1021 1022 if (blkcnt == 0) 1023 return 0; 1024 1025 device &= 0xff; 1026 /* Setup device */ 1027 USB_STOR_PRINTF("\nusb_read: dev %d \n", device); 1028 dev = NULL; 1029 for (i = 0; i < USB_MAX_DEVICE; i++) { 1030 dev = usb_get_dev_index(i); 1031 if (dev == NULL) 1032 return 0; 1033 if (dev->devnum == usb_dev_desc[device].target) 1034 break; 1035 } 1036 1037 usb_disable_asynch(1); /* asynch transfer not allowed */ 1038 srb->lun = usb_dev_desc[device].lun; 1039 buf_addr = (unsigned long)buffer; 1040 start = blknr; 1041 blks = blkcnt; 1042 if (usb_test_unit_ready(srb, (struct us_data *)dev->privptr)) { 1043 printf("Device NOT ready\n Request Sense returned %02X %02X" 1044 " %02X\n", srb->sense_buf[2], srb->sense_buf[12], 1045 srb->sense_buf[13]); 1046 return 0; 1047 } 1048 1049 USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx" 1050 " buffer %lx\n", device, start, blks, buf_addr); 1051 1052 do { 1053 /* XXX need some comment here */ 1054 retry = 2; 1055 srb->pdata = (unsigned char *)buf_addr; 1056 if (blks > USB_MAX_READ_BLK) 1057 smallblks = USB_MAX_READ_BLK; 1058 else 1059 smallblks = (unsigned short) blks; 1060 retry_it: 1061 if (smallblks == USB_MAX_READ_BLK) 1062 usb_show_progress(); 1063 srb->datalen = usb_dev_desc[device].blksz * smallblks; 1064 srb->pdata = (unsigned char *)buf_addr; 1065 if (usb_read_10(srb, (struct us_data *)dev->privptr, start, 1066 smallblks)) { 1067 USB_STOR_PRINTF("Read ERROR\n"); 1068 usb_request_sense(srb, (struct us_data *)dev->privptr); 1069 if (retry--) 1070 goto retry_it; 1071 blkcnt -= blks; 1072 break; 1073 } 1074 start += smallblks; 1075 blks -= smallblks; 1076 buf_addr += srb->datalen; 1077 } while (blks != 0); 1078 1079 USB_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\n", 1080 start, smallblks, buf_addr); 1081 1082 usb_disable_asynch(0); /* asynch transfer allowed */ 1083 if (blkcnt >= USB_MAX_READ_BLK) 1084 debug("\n"); 1085 return blkcnt; 1086 } 1087 1088 #define USB_MAX_WRITE_BLK 20 1089 1090 unsigned long usb_stor_write(int device, unsigned long blknr, 1091 unsigned long blkcnt, const void *buffer) 1092 { 1093 unsigned long start, blks, buf_addr; 1094 unsigned short smallblks; 1095 struct usb_device *dev; 1096 int retry, i; 1097 ccb *srb = &usb_ccb; 1098 1099 if (blkcnt == 0) 1100 return 0; 1101 1102 device &= 0xff; 1103 /* Setup device */ 1104 USB_STOR_PRINTF("\nusb_write: dev %d \n", device); 1105 dev = NULL; 1106 for (i = 0; i < USB_MAX_DEVICE; i++) { 1107 dev = usb_get_dev_index(i); 1108 if (dev == NULL) 1109 return 0; 1110 if (dev->devnum == usb_dev_desc[device].target) 1111 break; 1112 } 1113 1114 usb_disable_asynch(1); /* asynch transfer not allowed */ 1115 1116 srb->lun = usb_dev_desc[device].lun; 1117 buf_addr = (unsigned long)buffer; 1118 start = blknr; 1119 blks = blkcnt; 1120 if (usb_test_unit_ready(srb, (struct us_data *)dev->privptr)) { 1121 printf("Device NOT ready\n Request Sense returned %02X %02X" 1122 " %02X\n", srb->sense_buf[2], srb->sense_buf[12], 1123 srb->sense_buf[13]); 1124 return 0; 1125 } 1126 1127 USB_STOR_PRINTF("\nusb_write: dev %d startblk %lx, blccnt %lx" 1128 " buffer %lx\n", device, start, blks, buf_addr); 1129 1130 do { 1131 /* If write fails retry for max retry count else 1132 * return with number of blocks written successfully. 1133 */ 1134 retry = 2; 1135 srb->pdata = (unsigned char *)buf_addr; 1136 if (blks > USB_MAX_WRITE_BLK) 1137 smallblks = USB_MAX_WRITE_BLK; 1138 else 1139 smallblks = (unsigned short) blks; 1140 retry_it: 1141 if (smallblks == USB_MAX_WRITE_BLK) 1142 usb_show_progress(); 1143 srb->datalen = usb_dev_desc[device].blksz * smallblks; 1144 srb->pdata = (unsigned char *)buf_addr; 1145 if (usb_write_10(srb, (struct us_data *)dev->privptr, start, 1146 smallblks)) { 1147 USB_STOR_PRINTF("Write ERROR\n"); 1148 usb_request_sense(srb, (struct us_data *)dev->privptr); 1149 if (retry--) 1150 goto retry_it; 1151 blkcnt -= blks; 1152 break; 1153 } 1154 start += smallblks; 1155 blks -= smallblks; 1156 buf_addr += srb->datalen; 1157 } while (blks != 0); 1158 1159 USB_STOR_PRINTF("usb_write: end startblk %lx, blccnt %x buffer %lx\n", 1160 start, smallblks, buf_addr); 1161 1162 usb_disable_asynch(0); /* asynch transfer allowed */ 1163 if (blkcnt >= USB_MAX_WRITE_BLK) 1164 debug("\n"); 1165 return blkcnt; 1166 1167 } 1168 1169 /* Probe to see if a new device is actually a Storage device */ 1170 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, 1171 struct us_data *ss) 1172 { 1173 struct usb_interface *iface; 1174 int i; 1175 unsigned int flags = 0; 1176 1177 int protocol = 0; 1178 int subclass = 0; 1179 1180 /* let's examine the device now */ 1181 iface = &dev->config.if_desc[ifnum]; 1182 1183 #if 0 1184 /* this is the place to patch some storage devices */ 1185 USB_STOR_PRINTF("iVendor %X iProduct %X\n", dev->descriptor.idVendor, 1186 dev->descriptor.idProduct); 1187 1188 if ((dev->descriptor.idVendor) == 0x066b && 1189 (dev->descriptor.idProduct) == 0x0103) { 1190 USB_STOR_PRINTF("patched for E-USB\n"); 1191 protocol = US_PR_CB; 1192 subclass = US_SC_UFI; /* an assumption */ 1193 } 1194 #endif 1195 1196 if (dev->descriptor.bDeviceClass != 0 || 1197 iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE || 1198 iface->desc.bInterfaceSubClass < US_SC_MIN || 1199 iface->desc.bInterfaceSubClass > US_SC_MAX) { 1200 /* if it's not a mass storage, we go no further */ 1201 return 0; 1202 } 1203 1204 memset(ss, 0, sizeof(struct us_data)); 1205 1206 /* At this point, we know we've got a live one */ 1207 USB_STOR_PRINTF("\n\nUSB Mass Storage device detected\n"); 1208 1209 /* Initialize the us_data structure with some useful info */ 1210 ss->flags = flags; 1211 ss->ifnum = ifnum; 1212 ss->pusb_dev = dev; 1213 ss->attention_done = 0; 1214 1215 /* If the device has subclass and protocol, then use that. Otherwise, 1216 * take data from the specific interface. 1217 */ 1218 if (subclass) { 1219 ss->subclass = subclass; 1220 ss->protocol = protocol; 1221 } else { 1222 ss->subclass = iface->desc.bInterfaceSubClass; 1223 ss->protocol = iface->desc.bInterfaceProtocol; 1224 } 1225 1226 /* set the handler pointers based on the protocol */ 1227 USB_STOR_PRINTF("Transport: "); 1228 switch (ss->protocol) { 1229 case US_PR_CB: 1230 USB_STOR_PRINTF("Control/Bulk\n"); 1231 ss->transport = usb_stor_CB_transport; 1232 ss->transport_reset = usb_stor_CB_reset; 1233 break; 1234 1235 case US_PR_CBI: 1236 USB_STOR_PRINTF("Control/Bulk/Interrupt\n"); 1237 ss->transport = usb_stor_CB_transport; 1238 ss->transport_reset = usb_stor_CB_reset; 1239 break; 1240 case US_PR_BULK: 1241 USB_STOR_PRINTF("Bulk/Bulk/Bulk\n"); 1242 ss->transport = usb_stor_BBB_transport; 1243 ss->transport_reset = usb_stor_BBB_reset; 1244 break; 1245 default: 1246 printf("USB Storage Transport unknown / not yet implemented\n"); 1247 return 0; 1248 break; 1249 } 1250 1251 /* 1252 * We are expecting a minimum of 2 endpoints - in and out (bulk). 1253 * An optional interrupt is OK (necessary for CBI protocol). 1254 * We will ignore any others. 1255 */ 1256 for (i = 0; i < iface->desc.bNumEndpoints; i++) { 1257 /* is it an BULK endpoint? */ 1258 if ((iface->ep_desc[i].bmAttributes & 1259 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { 1260 if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN) 1261 ss->ep_in = iface->ep_desc[i].bEndpointAddress & 1262 USB_ENDPOINT_NUMBER_MASK; 1263 else 1264 ss->ep_out = 1265 iface->ep_desc[i].bEndpointAddress & 1266 USB_ENDPOINT_NUMBER_MASK; 1267 } 1268 1269 /* is it an interrupt endpoint? */ 1270 if ((iface->ep_desc[i].bmAttributes & 1271 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { 1272 ss->ep_int = iface->ep_desc[i].bEndpointAddress & 1273 USB_ENDPOINT_NUMBER_MASK; 1274 ss->irqinterval = iface->ep_desc[i].bInterval; 1275 } 1276 } 1277 USB_STOR_PRINTF("Endpoints In %d Out %d Int %d\n", 1278 ss->ep_in, ss->ep_out, ss->ep_int); 1279 1280 /* Do some basic sanity checks, and bail if we find a problem */ 1281 if (usb_set_interface(dev, iface->desc.bInterfaceNumber, 0) || 1282 !ss->ep_in || !ss->ep_out || 1283 (ss->protocol == US_PR_CBI && ss->ep_int == 0)) { 1284 USB_STOR_PRINTF("Problems with device\n"); 1285 return 0; 1286 } 1287 /* set class specific stuff */ 1288 /* We only handle certain protocols. Currently, these are 1289 * the only ones. 1290 * The SFF8070 accepts the requests used in u-boot 1291 */ 1292 if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI && 1293 ss->subclass != US_SC_8070) { 1294 printf("Sorry, protocol %d not yet supported.\n", ss->subclass); 1295 return 0; 1296 } 1297 if (ss->ep_int) { 1298 /* we had found an interrupt endpoint, prepare irq pipe 1299 * set up the IRQ pipe and handler 1300 */ 1301 ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255; 1302 ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int); 1303 ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe); 1304 dev->irq_handle = usb_stor_irq; 1305 } 1306 dev->privptr = (void *)ss; 1307 return 1; 1308 } 1309 1310 int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, 1311 block_dev_desc_t *dev_desc) 1312 { 1313 unsigned char perq, modi; 1314 unsigned long cap[2]; 1315 unsigned long *capacity, *blksz; 1316 ccb *pccb = &usb_ccb; 1317 1318 /* for some reasons a couple of devices would not survive this reset */ 1319 if ( 1320 /* Sony USM256E */ 1321 (dev->descriptor.idVendor == 0x054c && 1322 dev->descriptor.idProduct == 0x019e) 1323 || 1324 /* USB007 Mini-USB2 Flash Drive */ 1325 (dev->descriptor.idVendor == 0x066f && 1326 dev->descriptor.idProduct == 0x2010) 1327 || 1328 /* SanDisk Corporation Cruzer Micro 20044318410546613953 */ 1329 (dev->descriptor.idVendor == 0x0781 && 1330 dev->descriptor.idProduct == 0x5151) 1331 || 1332 /* 1333 * SanDisk Corporation U3 Cruzer Micro 1/4GB 1334 * Flash Drive 000016244373FFB4 1335 */ 1336 (dev->descriptor.idVendor == 0x0781 && 1337 dev->descriptor.idProduct == 0x5406) 1338 ) 1339 USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\n"); 1340 else 1341 ss->transport_reset(ss); 1342 1343 pccb->pdata = usb_stor_buf; 1344 1345 dev_desc->target = dev->devnum; 1346 pccb->lun = dev_desc->lun; 1347 USB_STOR_PRINTF(" address %d\n", dev_desc->target); 1348 1349 if (usb_inquiry(pccb, ss)) 1350 return -1; 1351 1352 perq = usb_stor_buf[0]; 1353 modi = usb_stor_buf[1]; 1354 1355 if ((perq & 0x1f) == 0x1f) { 1356 /* skip unknown devices */ 1357 return 0; 1358 } 1359 if ((modi&0x80) == 0x80) { 1360 /* drive is removable */ 1361 dev_desc->removable = 1; 1362 } 1363 memcpy(&dev_desc->vendor[0], &usb_stor_buf[8], 8); 1364 memcpy(&dev_desc->product[0], &usb_stor_buf[16], 16); 1365 memcpy(&dev_desc->revision[0], &usb_stor_buf[32], 4); 1366 dev_desc->vendor[8] = 0; 1367 dev_desc->product[16] = 0; 1368 dev_desc->revision[4] = 0; 1369 #ifdef CONFIG_USB_BIN_FIXUP 1370 usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor, 1371 (uchar *)dev_desc->product); 1372 #endif /* CONFIG_USB_BIN_FIXUP */ 1373 USB_STOR_PRINTF("ISO Vers %X, Response Data %X\n", usb_stor_buf[2], 1374 usb_stor_buf[3]); 1375 if (usb_test_unit_ready(pccb, ss)) { 1376 printf("Device NOT ready\n" 1377 " Request Sense returned %02X %02X %02X\n", 1378 pccb->sense_buf[2], pccb->sense_buf[12], 1379 pccb->sense_buf[13]); 1380 if (dev_desc->removable == 1) { 1381 dev_desc->type = perq; 1382 return 1; 1383 } 1384 return 0; 1385 } 1386 pccb->pdata = (unsigned char *)&cap[0]; 1387 memset(pccb->pdata, 0, 8); 1388 if (usb_read_capacity(pccb, ss) != 0) { 1389 printf("READ_CAP ERROR\n"); 1390 cap[0] = 2880; 1391 cap[1] = 0x200; 1392 } 1393 USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\n", cap[0], 1394 cap[1]); 1395 #if 0 1396 if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */ 1397 cap[0] >>= 16; 1398 #endif 1399 cap[0] = cpu_to_be32(cap[0]); 1400 cap[1] = cpu_to_be32(cap[1]); 1401 1402 /* this assumes bigendian! */ 1403 cap[0] += 1; 1404 capacity = &cap[0]; 1405 blksz = &cap[1]; 1406 USB_STOR_PRINTF("Capacity = 0x%lx, blocksz = 0x%lx\n", 1407 *capacity, *blksz); 1408 dev_desc->lba = *capacity; 1409 dev_desc->blksz = *blksz; 1410 dev_desc->type = perq; 1411 USB_STOR_PRINTF(" address %d\n", dev_desc->target); 1412 USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type); 1413 1414 init_part(dev_desc); 1415 1416 USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type); 1417 return 1; 1418 } 1419