umass.c revision 1.44
1 /* $NetBSD: umass.c,v 1.44 2000/11/04 15:54:36 augustss Exp $ */ 2 /*- 3 * Copyright (c) 1999 MAEKAWA Masahide <bishop (at) rr.iij4u.or.jp>, 4 * Nick Hibma <n_hibma (at) freebsd.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sys/dev/usb/umass.c,v 1.13 2000/03/26 01:39:12 n_hibma Exp $ 29 */ 30 31 /* 32 * Universal Serial Bus Mass Storage Class Bulk-Only Transport 33 * http://www.usb.org/developers/usbmassbulk_09.pdf 34 * XXX Add URL to CBI spec in www.usb.org 35 */ 36 37 /* 38 * Ported to NetBSD by Lennart Augustsson <augustss (at) netbsd.org>. 39 * Parts of the code written my Jason R. Thorpe <thorpej (at) shagadelic.org>. 40 */ 41 42 /* 43 * The driver handles 3 Wire Protocols 44 * - Command/Bulk/Interrupt (CBI) 45 * - Command/Bulk/Interrupt with Command Completion Interrupt (CBI with CCI) 46 * - Mass Storage Bulk-Only (BBB) 47 * (BBB refers Bulk/Bulk/Bulk for Command/Data/Status phases) 48 * 49 * Over these wire protocols it handles the following command protocols 50 * - SCSI 51 * - UFI (floppy command set) 52 * - 8070 (ATA/ATAPI) 53 * 54 * UFI and 8070i are transformed versions of the SCSI command set. The 55 * sc->transform method is used to convert the commands into the appropriate 56 * format (if at all necessary). For example, UFI requires all commands to be 57 * 12 bytes in length amongst other things. 58 * 59 * The source code below is marked and can be split into a number of pieces 60 * (in this order): 61 * 62 * - probe/attach/detach 63 * - generic transfer routines 64 * - BBB 65 * - CBI 66 * - CBI_I (in addition to functions from CBI) 67 * - CAM (Common Access Method) 68 * - SCSI 69 * - UFI 70 * - 8070i 71 * 72 * The protocols are implemented using a state machine, for the transfers as 73 * well as for the resets. The state machine is contained in umass_*_state. 74 * The state machine is started through either umass_*_transfer or 75 * umass_*_reset. 76 * 77 * The reason for doing this is a) CAM performs a lot better this way and b) it 78 * avoids using tsleep from interrupt context (for example after a failed 79 * transfer). 80 */ 81 82 /* 83 * The SCSI related part of this driver has been derived from the 84 * dev/ppbus/vpo.c driver, by Nicolas Souchu (nsouch (at) freebsd.org). 85 * 86 * The CAM layer uses so called actions which are messages sent to the host 87 * adapter for completion. The actions come in through umass_cam_action. The 88 * appropriate block of routines is called depending on the transport protocol 89 * in use. When the transfer has finished, these routines call 90 * umass_cam_cb again to complete the CAM command. 91 */ 92 93 /* XXX Should we split the driver into a number of files? umass.c, 94 * umass_scsi.c, umass_8070.c, umass_ufi.c, umass_bbb.c, umass_cbi.c or 95 * something similar? 96 */ 97 98 #include "atapibus.h" 99 100 #include <sys/param.h> 101 #include <sys/systm.h> 102 #include <sys/kernel.h> 103 #include <sys/conf.h> 104 #if defined(__NetBSD__) || defined(__OpenBSD__) 105 #include <sys/buf.h> 106 #include <sys/device.h> 107 #include <sys/ioctl.h> 108 #include <sys/malloc.h> 109 #undef KASSERT 110 #define KASSERT(cond, msg) 111 #elif defined(__FreeBSD__) 112 #include <sys/module.h> 113 #include <sys/bus.h> 114 #include <machine/clock.h> 115 #endif 116 117 #include <dev/usb/usb.h> 118 #include <dev/usb/usbdi.h> 119 #include <dev/usb/usbdi_util.h> 120 #include <dev/usb/usbdevs.h> 121 122 #if defined(__FreeBSD__) 123 #include <cam/cam.h> 124 #include <cam/cam_ccb.h> 125 #include <cam/cam_sim.h> 126 #include <cam/cam_xpt_sim.h> 127 #include <cam/scsi/scsi_all.h> 128 #include <cam/scsi/scsi_da.h> 129 130 #ifdef UMASS_DO_CAM_RESCAN 131 #include <sys/devicestat.h> 132 #include <cam/cam_periph.h> 133 #endif 134 135 #elif defined(__NetBSD__) || defined(__OpenBSD__) 136 #include <sys/scsiio.h> 137 #include <dev/scsipi/scsi_all.h> 138 #include <dev/scsipi/scsipi_all.h> 139 #include <dev/scsipi/scsiconf.h> 140 141 #include <dev/scsipi/atapiconf.h> 142 143 #include <dev/scsipi/scsipi_disk.h> 144 #include <dev/scsipi/scsi_disk.h> 145 #include <dev/scsipi/scsi_changer.h> 146 147 #include <dev/ata/atavar.h> /* XXX */ 148 #include <sys/disk.h> /* XXX */ 149 #include <dev/scsipi/sdvar.h> /* XXX */ 150 #endif 151 152 #ifdef UMASS_DEBUG 153 #define DIF(m, x) if (umassdebug & (m)) do { x ; } while (0) 154 #define DPRINTF(m, x) if (umassdebug & (m)) logprintf x 155 #define UDMASS_UPPER 0x00008000 /* upper layer */ 156 #define UDMASS_GEN 0x00010000 /* general */ 157 #define UDMASS_SCSI 0x00020000 /* scsi */ 158 #define UDMASS_UFI 0x00040000 /* ufi command set */ 159 #define UDMASS_8070 0x00080000 /* 8070i command set */ 160 #define UDMASS_USB 0x00100000 /* USB general */ 161 #define UDMASS_BBB 0x00200000 /* Bulk-Only transfers */ 162 #define UDMASS_CBI 0x00400000 /* CBI transfers */ 163 #define UDMASS_ALL 0xffff0000 /* all of the above */ 164 165 #define UDMASS_XFER 0x40000000 /* all transfers */ 166 #define UDMASS_CMD 0x80000000 167 168 int umassdebug = 0; 169 #else 170 #define DIF(m, x) /* nop */ 171 #define DPRINTF(m, x) /* nop */ 172 #endif 173 174 175 /* Generic definitions */ 176 177 #define UFI_COMMAND_LENGTH 12 178 179 /* Direction for umass_*_transfer */ 180 #define DIR_NONE 0 181 #define DIR_IN 1 182 #define DIR_OUT 2 183 184 /* The transfer speed determines the timeout value */ 185 #define UMASS_DEFAULT_TRANSFER_SPEED 150 /* in kb/s, conservative est. */ 186 #define UMASS_FLOPPY_TRANSFER_SPEED 20 187 #define UMASS_ZIP100_TRANSFER_SPEED 650 188 189 #define UMASS_SPINUP_TIME 10000 /* ms */ 190 191 #ifdef __FreeBSD__ 192 /* device name */ 193 #define DEVNAME "umass" 194 #define DEVNAME_SIM "umass-" 195 196 #define UMASS_MAX_TRANSFER_SIZE 65536 197 198 /* CAM specific definitions */ 199 200 /* The bus id, whatever that is */ 201 #define UMASS_SCSI_BUS 0 202 203 /* All USB drives are 'connected' to one SIM (SCSI controller). umass3 204 * ends up being target 3 on that SIM. When a request for target 3 205 * comes in we fetch the softc with devclass_get_softc(target_id). 206 * 207 * The SIM is the highest target number. This makes sure that umass0 corresponds 208 * to target 0 on the USB SCSI bus. 209 */ 210 #ifndef UMASS_DEBUG 211 #define UMASS_SCSIID_MAX 32 /* maximum number of drives expected */ 212 #else 213 /* while debugging avoid unnecessary clutter in the output at umass_cam_rescan 214 * (XPT_PATH_INQ) 215 */ 216 #define UMASS_SCSIID_MAX 3 /* maximum number of drives expected */ 217 #endif 218 #define UMASS_SCSIID_HOST UMASS_SCSIID_MAX 219 #endif 220 221 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 222 223 224 /* Bulk-Only features */ 225 226 #define UR_BBB_RESET 0xff /* Bulk-Only reset */ 227 #define UR_BBB_GET_MAX_LUN 0xfe 228 229 /* Command Block Wrapper */ 230 typedef struct { 231 uDWord dCBWSignature; 232 # define CBWSIGNATURE 0x43425355 233 uDWord dCBWTag; 234 uDWord dCBWDataTransferLength; 235 uByte bCBWFlags; 236 # define CBWFLAGS_OUT 0x00 237 # define CBWFLAGS_IN 0x80 238 uByte bCBWLUN; 239 uByte bCDBLength; 240 # define CBWCDBLENGTH 16 241 uByte CBWCDB[CBWCDBLENGTH]; 242 } umass_bbb_cbw_t; 243 #define UMASS_BBB_CBW_SIZE 31 244 245 /* Command Status Wrapper */ 246 typedef struct { 247 uDWord dCSWSignature; 248 # define CSWSIGNATURE 0x53425355 249 uDWord dCSWTag; 250 uDWord dCSWDataResidue; 251 uByte bCSWStatus; 252 # define CSWSTATUS_GOOD 0x0 253 # define CSWSTATUS_FAILED 0x1 254 # define CSWSTATUS_PHASE 0x2 255 } umass_bbb_csw_t; 256 #define UMASS_BBB_CSW_SIZE 13 257 258 /* CBI features */ 259 260 #define UR_CBI_ADSC 0x00 261 262 typedef unsigned char umass_cbi_cbl_t[16]; /* Command block */ 263 264 typedef union { 265 struct { 266 unsigned char type; 267 #define IDB_TYPE_CCI 0x00 268 unsigned char value; 269 #define IDB_VALUE_PASS 0x00 270 #define IDB_VALUE_FAIL 0x01 271 #define IDB_VALUE_PHASE 0x02 272 #define IDB_VALUE_PERSISTENT 0x03 273 #define IDB_VALUE_STATUS_MASK 0x03 274 } common; 275 276 struct { 277 unsigned char asc; 278 unsigned char ascq; 279 } ufi; 280 } umass_cbi_sbl_t; 281 282 283 284 struct umass_softc; /* see below */ 285 286 typedef void (*transfer_cb_f)(struct umass_softc *sc, void *priv, 287 int residue, int status); 288 #define STATUS_CMD_OK 0 /* everything ok */ 289 #define STATUS_CMD_UNKNOWN 1 /* will have to fetch sense */ 290 #define STATUS_CMD_FAILED 2 /* transfer was ok, command failed */ 291 #define STATUS_WIRE_FAILED 3 /* couldn't even get command across */ 292 293 typedef void (*wire_reset_f)(struct umass_softc *sc, int status); 294 typedef void (*wire_transfer_f)(struct umass_softc *sc, int lun, 295 void *cmd, int cmdlen, void *data, int datalen, 296 int dir, transfer_cb_f cb, void *priv); 297 typedef void (*wire_state_f)(usbd_xfer_handle xfer, 298 usbd_private_handle priv, usbd_status err); 299 300 #if defined(__FreeBSD__) 301 typedef int (*command_transform_f)(struct umass_softc *sc, 302 u_char *cmd, int cmdlen, 303 u_char **rcmd, int *rcmdlen)); 304 #endif 305 306 307 /* the per device structure */ 308 struct umass_softc { 309 USBBASEDEVICE sc_dev; /* base device */ 310 usbd_device_handle sc_udev; /* device */ 311 312 unsigned char drive; 313 # define DRIVE_GENERIC 0 /* use defaults for this one */ 314 # define ZIP_100 1 /* to be used for quirks */ 315 # define ZIP_250 2 316 # define SHUTTLE_EUSB 3 317 # define INSYSTEM_USBCABLE 4 318 unsigned char quirks; 319 /* The drive does not support Test Unit Ready. Convert to 320 * Start Unit. 321 * Y-E Data 322 * ZIP 100 323 */ 324 # define NO_TEST_UNIT_READY 0x01 325 /* The drive does not reset the Unit Attention state after 326 * REQUEST SENSE has been sent. The INQUIRY command does not reset 327 * the UA either, and so CAM runs in circles trying to retrieve the 328 * initial INQUIRY data. 329 * Y-E Data 330 */ 331 # define RS_NO_CLEAR_UA 0x02 /* no REQUEST SENSE on INQUIRY*/ 332 /* The drive does not support START_STOP. 333 * Shuttle E-USB 334 */ 335 # define NO_START_STOP 0x04 336 337 unsigned int proto; 338 # define PROTO_UNKNOWN 0x0000 /* unknown protocol */ 339 # define PROTO_BBB 0x0001 /* USB wire protocol */ 340 # define PROTO_CBI 0x0002 341 # define PROTO_CBI_I 0x0004 342 # define PROTO_WIRE 0x00ff /* USB wire protocol mask */ 343 # define PROTO_SCSI 0x0100 /* command protocol */ 344 # define PROTO_ATAPI 0x0200 345 # define PROTO_UFI 0x0400 346 # define PROTO_RBC 0x0800 347 # define PROTO_COMMAND 0xff00 /* command protocol mask */ 348 349 u_char subclass; /* interface subclass */ 350 u_char protocol; /* interface protocol */ 351 352 usbd_interface_handle iface; /* Mass Storage interface */ 353 int ifaceno; /* MS iface number */ 354 355 u_int8_t bulkin; /* bulk-in Endpoint Address */ 356 u_int8_t bulkout; /* bulk-out Endpoint Address */ 357 u_int8_t intrin; /* intr-in Endp. (CBI) */ 358 usbd_pipe_handle bulkin_pipe; 359 usbd_pipe_handle bulkout_pipe; 360 usbd_pipe_handle intrin_pipe; 361 362 /* Reset the device in a wire protocol specific way */ 363 wire_reset_f reset; 364 365 /* The start of a wire transfer. It prepares the whole transfer (cmd, 366 * data, and status stage) and initiates it. It is up to the state 367 * machine (below) to handle the various stages and errors in these 368 */ 369 wire_transfer_f transfer; 370 371 /* The state machine, handling the various states during a transfer */ 372 wire_state_f state; 373 374 #if defined(__FreeBSD__) 375 /* The command transform function is used to conver the SCSI commands 376 * into their derivatives, like UFI, ATAPI, and friends. 377 */ 378 command_transform_f transform; /* command transform */ 379 #endif 380 381 /* Bulk specific variables for transfers in progress */ 382 umass_bbb_cbw_t cbw; /* command block wrapper */ 383 umass_bbb_csw_t csw; /* command status wrapper*/ 384 /* CBI specific variables for transfers in progress */ 385 umass_cbi_cbl_t cbl; /* command block */ 386 umass_cbi_sbl_t sbl; /* status block */ 387 388 /* generic variables for transfers in progress */ 389 /* ctrl transfer requests */ 390 usb_device_request_t request; 391 392 /* xfer handles 393 * Most of our operations are initiated from interrupt context, so 394 * we need to avoid using the one that is in use. We want to avoid 395 * allocating them in the interrupt context as well. 396 */ 397 /* indices into array below */ 398 # define XFER_BBB_CBW 0 /* Bulk-Only */ 399 # define XFER_BBB_DATA 1 400 # define XFER_BBB_DCLEAR 2 401 # define XFER_BBB_CSW1 3 402 # define XFER_BBB_CSW2 4 403 # define XFER_BBB_SCLEAR 5 404 # define XFER_BBB_RESET1 6 405 # define XFER_BBB_RESET2 7 406 # define XFER_BBB_RESET3 8 407 408 # define XFER_CBI_CB 0 /* CBI */ 409 # define XFER_CBI_DATA 1 410 # define XFER_CBI_STATUS 2 411 # define XFER_CBI_DCLEAR 3 412 # define XFER_CBI_SCLEAR 4 413 # define XFER_CBI_RESET1 5 414 # define XFER_CBI_RESET2 6 415 # define XFER_CBI_RESET3 7 416 417 # define XFER_NR 9 /* maximum number */ 418 419 usbd_xfer_handle transfer_xfer[XFER_NR]; /* for ctrl xfers */ 420 421 void *data_buffer; 422 423 int transfer_dir; /* data direction */ 424 void *transfer_data; /* data buffer */ 425 int transfer_datalen; /* (maximum) length */ 426 int transfer_actlen; /* actual length */ 427 transfer_cb_f transfer_cb; /* callback */ 428 void *transfer_priv; /* for callback */ 429 int transfer_status; 430 431 int transfer_state; 432 # define TSTATE_IDLE 0 433 # define TSTATE_BBB_COMMAND 1 /* CBW transfer */ 434 # define TSTATE_BBB_DATA 2 /* Data transfer */ 435 # define TSTATE_BBB_DCLEAR 3 /* clear endpt stall */ 436 # define TSTATE_BBB_STATUS1 4 /* clear endpt stall */ 437 # define TSTATE_BBB_SCLEAR 5 /* clear endpt stall */ 438 # define TSTATE_BBB_STATUS2 6 /* CSW transfer */ 439 # define TSTATE_BBB_RESET1 7 /* reset command */ 440 # define TSTATE_BBB_RESET2 8 /* in clear stall */ 441 # define TSTATE_BBB_RESET3 9 /* out clear stall */ 442 # define TSTATE_CBI_COMMAND 10 /* command transfer */ 443 # define TSTATE_CBI_DATA 11 /* data transfer */ 444 # define TSTATE_CBI_STATUS 12 /* status transfer */ 445 # define TSTATE_CBI_DCLEAR 13 /* clear ep stall */ 446 # define TSTATE_CBI_SCLEAR 14 /* clear ep stall */ 447 # define TSTATE_CBI_RESET1 15 /* reset command */ 448 # define TSTATE_CBI_RESET2 16 /* in clear stall */ 449 # define TSTATE_CBI_RESET3 17 /* out clear stall */ 450 # define TSTATE_STATES 18 /* # of states above */ 451 452 453 int transfer_speed; /* in kb/s */ 454 int timeout; /* in msecs */ 455 456 u_int8_t maxlun; /* max lun supported */ 457 458 #ifdef UMASS_DEBUG 459 struct timeval tv; 460 #endif 461 462 #if defined(__FreeBSD__) 463 /* SCSI/CAM specific variables */ 464 struct scsi_sense cam_scsi_sense; 465 466 #elif defined(__NetBSD__) || defined(__OpenBSD__) 467 union { 468 struct scsipi_link sc_link; 469 struct { 470 struct ata_atapi_attach sc_aa; 471 struct ata_drive_datas sc_aa_drive; 472 } aa; 473 } u; 474 struct atapi_adapter sc_atapi_adapter; 475 #define sc_adapter sc_atapi_adapter._generic 476 int sc_xfer_flags; 477 usbd_status sc_sync_status; 478 struct scsipi_sense sc_sense_cmd; 479 480 device_ptr_t sc_child; /* child device, for detach */ 481 char sc_dying; 482 483 #endif 484 }; 485 486 #ifdef UMASS_DEBUG 487 char *states[TSTATE_STATES+1] = { 488 /* should be kept in sync with the list at transfer_state */ 489 "Idle", 490 "BBB CBW", 491 "BBB Data", 492 "BBB Data bulk-in/-out clear stall", 493 "BBB CSW, 1st attempt", 494 "BBB CSW bulk-in clear stall", 495 "BBB CSW, 2nd attempt", 496 "BBB Reset", 497 "BBB bulk-in clear stall", 498 "BBB bulk-out clear stall", 499 "CBI Command", 500 "CBI Data", 501 "CBI Status", 502 "CBI Data bulk-in/-out clear stall", 503 "CBI Status intr-in clear stall", 504 "CBI Reset", 505 "CBI bulk-in clear stall", 506 "CBI bulk-out clear stall", 507 NULL 508 }; 509 #endif 510 511 struct cam_sim *umass_sim; /* SCSI Interface Module */ 512 struct cam_path *umass_path; /* and its path */ 513 514 515 /* USB device probe/attach/detach functions */ 516 USB_DECLARE_DRIVER(umass); 517 Static void umass_disco(struct umass_softc *sc); 518 Static int umass_match_proto(struct umass_softc *sc, 519 usbd_interface_handle iface, 520 usbd_device_handle dev); 521 Static void umass_init_shuttle(struct umass_softc *sc); 522 523 /* generic transfer functions */ 524 Static usbd_status umass_setup_transfer(struct umass_softc *sc, 525 usbd_pipe_handle pipe, 526 void *buffer, int buflen, int flags, 527 usbd_xfer_handle xfer); 528 Static usbd_status umass_setup_ctrl_transfer(struct umass_softc *sc, 529 usbd_device_handle dev, 530 usb_device_request_t *req, 531 void *buffer, int buflen, int flags, 532 usbd_xfer_handle xfer); 533 Static void umass_clear_endpoint_stall(struct umass_softc *sc, 534 u_int8_t endpt, usbd_pipe_handle pipe, 535 int state, usbd_xfer_handle xfer); 536 #if 0 537 Static void umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv); 538 #endif 539 540 /* Bulk-Only related functions */ 541 Static void umass_bbb_reset(struct umass_softc *sc, int status); 542 Static void umass_bbb_transfer(struct umass_softc *sc, int lun, 543 void *cmd, int cmdlen, 544 void *data, int datalen, int dir, 545 transfer_cb_f cb, void *priv); 546 Static void umass_bbb_state(usbd_xfer_handle xfer, 547 usbd_private_handle priv, 548 usbd_status err); 549 usbd_status umass_bbb_get_max_lun(struct umass_softc *sc, u_int8_t *maxlun); 550 551 552 /* CBI related functions */ 553 Static int umass_cbi_adsc(struct umass_softc *sc, char *buffer,int buflen, 554 usbd_xfer_handle xfer); 555 Static void umass_cbi_reset(struct umass_softc *sc, int status); 556 Static void umass_cbi_transfer(struct umass_softc *sc, int lun, 557 void *cmd, int cmdlen, 558 void *data, int datalen, int dir, 559 transfer_cb_f cb, void *priv); 560 Static void umass_cbi_state(usbd_xfer_handle xfer, 561 usbd_private_handle priv, usbd_status err); 562 563 #if defined(__FreeBSD__) 564 /* CAM related functions */ 565 Static void umass_cam_action(struct cam_sim *sim, union ccb *ccb); 566 Static void umass_cam_poll(struct cam_sim *sim); 567 568 Static void umass_cam_cb(struct umass_softc *sc, void *priv, 569 int residue, int status); 570 Static void umass_cam_sense_cb(struct umass_softc *sc, void *priv, 571 int residue, int status); 572 573 #ifdef UMASS_DO_CAM_RESCAN 574 Static void umass_cam_rescan(struct umass_softc *sc); 575 #endif 576 577 Static int umass_cam_attach_sim(void); 578 Static int umass_cam_attach(struct umass_softc *sc); 579 Static int umass_cam_detach_sim(void); 580 Static int umass_cam_detach(struct umass_softc *sc); 581 582 #elif defined(__NetBSD__) || defined(__OpenBSD__) 583 584 #define UMASS_SCSIID_HOST 0x00 585 #define UMASS_SCSIID_DEVICE 0x01 586 587 #define UMASS_MAX_TRANSFER_SIZE MAXBSIZE 588 589 struct scsipi_device umass_dev = 590 { 591 NULL, /* Use default error handler */ 592 NULL, /* have a queue, served by this */ 593 NULL, /* have no async handler */ 594 NULL, /* Use default 'done' routine */ 595 }; 596 597 Static int umass_scsipi_cmd(struct scsipi_xfer *xs); 598 Static void umass_scsipi_minphys(struct buf *bp); 599 Static int umass_scsipi_ioctl(struct scsipi_link *, u_long, 600 caddr_t, int, struct proc *); 601 Static int umass_scsipi_getgeom(struct scsipi_link *link, 602 struct disk_parms *, u_long sectors); 603 604 Static void umass_scsipi_cb(struct umass_softc *sc, void *priv, 605 int residue, int status); 606 Static void umass_scsipi_sense_cb(struct umass_softc *sc, void *priv, 607 int residue, int status); 608 609 Static int scsipiprint(void *aux, const char *pnp); 610 Static int umass_ufi_transform(struct umass_softc *sc, 611 struct scsipi_generic *cmd, int cmdlen, 612 struct scsipi_generic *rcmd, int *rcmdlen); 613 #if NATAPIBUS > 0 614 Static void umass_atapi_probedev(struct atapibus_softc *, int); 615 #endif 616 #endif 617 618 #if defined(__FreeBSD__) 619 /* SCSI specific functions */ 620 Static int umass_scsi_transform(struct umass_softc *sc, 621 unsigned char *cmd, int cmdlen, 622 unsigned char **rcmd, int *rcmdlen); 623 624 /* UFI specific functions */ 625 Static int umass_ufi_transform(struct umass_softc *sc, 626 unsigned char *cmd, int cmdlen, 627 unsigned char **rcmd, int *rcmdlen); 628 629 /* 8070 specific functions */ 630 Static int umass_8070_transform(struct umass_softc *sc, 631 unsigned char *cmd, int cmdlen, 632 unsigned char **rcmd, int *rcmdlen); 633 #endif 634 635 #ifdef UMASS_DEBUG 636 /* General debugging functions */ 637 Static void umass_bbb_dump_cbw(struct umass_softc *sc, 638 umass_bbb_cbw_t *cbw); 639 Static void umass_bbb_dump_csw(struct umass_softc *sc, 640 umass_bbb_csw_t *csw); 641 Static void umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, 642 int buflen, int printlen); 643 #endif 644 645 646 void usbd_clear_endpoint_toggle(usbd_pipe_handle pipe); /* XXXXX */ 647 648 /* 649 * USB device probe/attach/detach 650 */ 651 652 /* 653 * Match the device we are seeing with the devices supported. Fill in the 654 * proto and drive fields in the softc accordingly. 655 * This function is called from both probe and attach. 656 */ 657 658 Static int 659 umass_match_proto(struct umass_softc *sc, usbd_interface_handle iface, 660 usbd_device_handle dev) 661 { 662 usb_device_descriptor_t *dd; 663 usb_interface_descriptor_t *id; 664 u_int vendor, product; 665 666 /* 667 * Fill in sc->drive and sc->proto and return a match 668 * value if both are determined and 0 otherwise. 669 */ 670 671 sc->drive = DRIVE_GENERIC; 672 sc->proto = PROTO_UNKNOWN; 673 sc->transfer_speed = UMASS_DEFAULT_TRANSFER_SPEED; 674 675 sc->sc_udev = dev; 676 dd = usbd_get_device_descriptor(dev); 677 vendor = UGETW(dd->idVendor); 678 product = UGETW(dd->idProduct); 679 680 if (vendor == USB_VENDOR_SHUTTLE && 681 product == USB_PRODUCT_SHUTTLE_EUSB) { 682 sc->drive = SHUTTLE_EUSB; 683 #if CBI_I 684 sc->proto = PROTO_ATAPI | PROTO_CBI_I; 685 #else 686 sc->proto = PROTO_ATAPI | PROTO_CBI; 687 #endif 688 sc->subclass = UISUBCLASS_SFF8020I; 689 sc->protocol = UIPROTO_MASS_CBI; 690 sc->quirks |= NO_TEST_UNIT_READY | NO_START_STOP; 691 return (UMATCH_VENDOR_PRODUCT); 692 } 693 694 if (vendor == USB_VENDOR_YEDATA && 695 product == USB_PRODUCT_YEDATA_FLASHBUSTERU) { 696 697 /* Revisions < 1.28 do not handle the interrupt endpoint 698 * very well. 699 */ 700 if (UGETW(dd->bcdDevice) < 0x128) 701 sc->proto = PROTO_UFI | PROTO_CBI; 702 else 703 #if CBI_I 704 sc->proto = PROTO_UFI | PROTO_CBI_I; 705 #else 706 sc->proto = PROTO_UFI | PROTO_CBI; 707 #endif 708 /* 709 * Revisions < 1.28 do not have the TEST UNIT READY command 710 * Revisions == 1.28 have a broken TEST UNIT READY 711 */ 712 if (UGETW(dd->bcdDevice) <= 0x128) 713 sc->quirks |= NO_TEST_UNIT_READY; 714 715 sc->subclass = UISUBCLASS_UFI; 716 sc->protocol = UIPROTO_MASS_CBI; 717 718 sc->quirks |= RS_NO_CLEAR_UA; 719 sc->transfer_speed = UMASS_FLOPPY_TRANSFER_SPEED; 720 return (UMATCH_VENDOR_PRODUCT_REV); 721 } 722 723 if (vendor == USB_VENDOR_INSYSTEM && 724 product == USB_PRODUCT_INSYSTEM_USBCABLE) { 725 sc->drive = INSYSTEM_USBCABLE; 726 sc->proto = PROTO_ATAPI | PROTO_CBI; 727 sc->quirks |= NO_TEST_UNIT_READY | NO_START_STOP; 728 return (UMATCH_VENDOR_PRODUCT); 729 } 730 731 id = usbd_get_interface_descriptor(iface); 732 if (id == NULL || id->bInterfaceClass != UICLASS_MASS) 733 return (UMATCH_NONE); 734 735 if (vendor == USB_VENDOR_SONY && id->bInterfaceSubClass == 0xff) { 736 /* 737 * Sony DSC devices set the sub class to 0xff 738 * instead of 1 (RBC). Fix that here. 739 */ 740 id->bInterfaceSubClass = UISUBCLASS_RBC; 741 /* They also should be able to do higher speed. */ 742 sc->transfer_speed = 500; 743 } 744 745 if (vendor == USB_VENDOR_FUJIPHOTO && 746 product == USB_PRODUCT_FUJIPHOTO_MASS0100) 747 sc->quirks |= NO_TEST_UNIT_READY | NO_START_STOP; 748 749 sc->subclass = id->bInterfaceSubClass; 750 sc->protocol = id->bInterfaceProtocol; 751 752 switch (sc->subclass) { 753 case UISUBCLASS_SCSI: 754 sc->proto |= PROTO_SCSI; 755 break; 756 case UISUBCLASS_UFI: 757 sc->transfer_speed = UMASS_FLOPPY_TRANSFER_SPEED; 758 sc->proto |= PROTO_UFI; 759 break; 760 case UISUBCLASS_SFF8020I: 761 case UISUBCLASS_SFF8070I: 762 case UISUBCLASS_QIC157: 763 sc->proto |= PROTO_ATAPI; 764 break; 765 case UISUBCLASS_RBC: 766 sc->proto |= PROTO_RBC; 767 break; 768 default: 769 DPRINTF(UDMASS_GEN, ("%s: Unsupported command protocol %d\n", 770 USBDEVNAME(sc->sc_dev), id->bInterfaceSubClass)); 771 return (UMATCH_NONE); 772 } 773 774 switch (sc->protocol) { 775 case UIPROTO_MASS_CBI: 776 sc->proto |= PROTO_CBI; 777 break; 778 case UIPROTO_MASS_CBI_I: 779 #if CBI_I 780 sc->proto |= PROTO_CBI_I; 781 #else 782 sc->proto |= PROTO_CBI; 783 #endif 784 break; 785 case UIPROTO_MASS_BBB: 786 sc->proto |= PROTO_BBB; 787 break; 788 case UIPROTO_MASS_BBB_P: 789 sc->drive = ZIP_100; 790 sc->proto |= PROTO_BBB; 791 sc->transfer_speed = UMASS_ZIP100_TRANSFER_SPEED; 792 sc->quirks |= NO_TEST_UNIT_READY; 793 break; 794 default: 795 DPRINTF(UDMASS_GEN, ("%s: Unsupported wire protocol %d\n", 796 USBDEVNAME(sc->sc_dev), id->bInterfaceProtocol)); 797 return (UMATCH_NONE); 798 } 799 800 return (UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO); 801 } 802 803 USB_MATCH(umass) 804 { 805 USB_MATCH_START(umass, uaa); 806 #if defined(__FreeBSD__) 807 struct umass_softc *sc = device_get_softc(self); 808 #else if defined(__NetBSD__) || defined(__OpenBSD__) 809 struct umass_softc scs, *sc = &scs; 810 memset(sc, 0, sizeof *sc); 811 strcpy(sc->sc_dev.dv_xname, "umass"); 812 #endif 813 814 if (uaa->iface == NULL) 815 return(UMATCH_NONE); 816 817 return (umass_match_proto(sc, uaa->iface, uaa->device)); 818 } 819 820 USB_ATTACH(umass) 821 { 822 USB_ATTACH_START(umass, sc, uaa); 823 usb_interface_descriptor_t *id; 824 usb_endpoint_descriptor_t *ed; 825 const char *sSubclass, *sProto; 826 char devinfo[1024]; 827 int i, bno; 828 int err; 829 830 /* 831 * the softc struct is bzero-ed in device_set_driver. We can safely 832 * call umass_detach without specifically initialising the struct. 833 */ 834 835 usbd_devinfo(uaa->device, 0, devinfo); 836 USB_ATTACH_SETUP; 837 838 sc->iface = uaa->iface; 839 sc->ifaceno = uaa->ifaceno; 840 841 /* initialise the proto and drive values in the umass_softc (again) */ 842 if (umass_match_proto(sc, sc->iface, uaa->device) == 0) { 843 printf("%s: match failed\n", USBDEVNAME(sc->sc_dev)); 844 USB_ATTACH_ERROR_RETURN; 845 } 846 847 /* 848 * The timeout is based on the maximum expected transfer size 849 * divided by the expected transfer speed. 850 * We multiply by 4 to make sure a busy system doesn't make things 851 * fail. 852 */ 853 sc->timeout = 4 * UMASS_MAX_TRANSFER_SIZE / sc->transfer_speed; 854 sc->timeout += UMASS_SPINUP_TIME; /* allow for spinning up */ 855 856 id = usbd_get_interface_descriptor(sc->iface); 857 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 858 859 switch (sc->subclass) { 860 case UISUBCLASS_RBC: 861 sSubclass = "RBC"; 862 break; 863 case UISUBCLASS_SCSI: 864 sSubclass = "SCSI"; 865 break; 866 case UISUBCLASS_UFI: 867 sSubclass = "UFI"; 868 break; 869 case UISUBCLASS_SFF8020I: 870 sSubclass = "SFF8020i"; 871 break; 872 case UISUBCLASS_SFF8070I: 873 sSubclass = "SFF8070i"; 874 break; 875 case UISUBCLASS_QIC157: 876 sSubclass = "QIC157"; 877 break; 878 default: 879 sSubclass = "unknown"; 880 break; 881 } 882 switch (sc->protocol) { 883 case UIPROTO_MASS_CBI: 884 sProto = "CBI"; 885 break; 886 case UIPROTO_MASS_CBI_I: 887 sProto = "CBI-I"; 888 break; 889 case UIPROTO_MASS_BBB: 890 sProto = "BBB"; 891 break; 892 case UIPROTO_MASS_BBB_P: 893 sProto = "BBB-P"; 894 break; 895 default: 896 sProto = "unknown"; 897 break; 898 } 899 printf("%s: using %s over %s\n", USBDEVNAME(sc->sc_dev), sSubclass, 900 sProto); 901 902 if (sc->drive == INSYSTEM_USBCABLE) { 903 err = usbd_set_interface(0, 1); 904 if (err) { 905 DPRINTF(UDMASS_USB, ("%s: could not switch to " 906 "Alt Interface %d\n", 907 USBDEVNAME(sc->sc_dev), 1)); 908 umass_disco(sc); 909 USB_ATTACH_ERROR_RETURN; 910 } 911 } 912 913 /* 914 * In addition to the Control endpoint the following endpoints 915 * are required: 916 * a) bulk-in endpoint. 917 * b) bulk-out endpoint. 918 * and for Control/Bulk/Interrupt with CCI (CBI_I) 919 * c) intr-in 920 * 921 * The endpoint addresses are not fixed, so we have to read them 922 * from the device descriptors of the current interface. 923 */ 924 for (i = 0 ; i < id->bNumEndpoints ; i++) { 925 ed = usbd_interface2endpoint_descriptor(sc->iface, i); 926 if (!ed) { 927 printf("%s: could not read endpoint descriptor\n", 928 USBDEVNAME(sc->sc_dev)); 929 USB_ATTACH_ERROR_RETURN; 930 } 931 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN 932 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 933 sc->bulkin = ed->bEndpointAddress; 934 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT 935 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 936 sc->bulkout = ed->bEndpointAddress; 937 } else if (sc->proto & PROTO_CBI_I 938 && UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN 939 && (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 940 sc->intrin = ed->bEndpointAddress; 941 #ifdef UMASS_DEBUG 942 if (UGETW(ed->wMaxPacketSize) > 2) { 943 DPRINTF(UDMASS_CBI, ("%s: intr size is %d\n", 944 USBDEVNAME(sc->sc_dev), 945 UGETW(ed->wMaxPacketSize))); 946 } 947 #endif 948 } 949 } 950 951 /* check whether we found all the endpoints we need */ 952 if (!sc->bulkin || !sc->bulkout 953 || (sc->proto & PROTO_CBI_I && !sc->intrin) ) { 954 DPRINTF(UDMASS_USB, ("%s: endpoint not found %d/%d/%d\n", 955 USBDEVNAME(sc->sc_dev), 956 sc->bulkin, sc->bulkout, sc->intrin)); 957 umass_disco(sc); 958 USB_ATTACH_ERROR_RETURN; 959 } 960 961 /* 962 * Get the maximum LUN supported by the device. 963 */ 964 if ((sc->proto & PROTO_WIRE) == PROTO_BBB) { 965 err = umass_bbb_get_max_lun(sc, &sc->maxlun); 966 if (err) { 967 printf("%s: unable to get Max Lun: %s\n", 968 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 969 USB_ATTACH_ERROR_RETURN; 970 } 971 } else { 972 sc->maxlun = 0; 973 } 974 975 /* Open the bulk-in and -out pipe */ 976 err = usbd_open_pipe(sc->iface, sc->bulkout, 977 USBD_EXCLUSIVE_USE, &sc->bulkout_pipe); 978 if (err) { 979 DPRINTF(UDMASS_USB, ("%s: cannot open %d-out pipe (bulk)\n", 980 USBDEVNAME(sc->sc_dev), sc->bulkout)); 981 umass_disco(sc); 982 USB_ATTACH_ERROR_RETURN; 983 } 984 err = usbd_open_pipe(sc->iface, sc->bulkin, 985 USBD_EXCLUSIVE_USE, &sc->bulkin_pipe); 986 if (err) { 987 DPRINTF(UDMASS_USB, ("%s: could not open %d-in pipe (bulk)\n", 988 USBDEVNAME(sc->sc_dev), sc->bulkin)); 989 umass_disco(sc); 990 USB_ATTACH_ERROR_RETURN; 991 } 992 /* 993 * Open the intr-in pipe if the protocol is CBI with CCI. 994 * Note: early versions of the Zip drive do have an interrupt pipe, but 995 * this pipe is unused 996 * 997 * We do not open the interrupt pipe as an interrupt pipe, but as a 998 * normal bulk endpoint. We send an IN transfer down the wire at the 999 * appropriate time, because we know exactly when to expect data on 1000 * that endpoint. This saves bandwidth, but more important, makes the 1001 * code for handling the data on that endpoint simpler. No data 1002 * arriving concurrently. 1003 */ 1004 if (sc->proto & PROTO_CBI_I) { 1005 err = usbd_open_pipe(sc->iface, sc->intrin, 1006 USBD_EXCLUSIVE_USE, &sc->intrin_pipe); 1007 if (err) { 1008 DPRINTF(UDMASS_USB, ("%s: couldn't open %d-in (intr)\n", 1009 USBDEVNAME(sc->sc_dev), sc->intrin)); 1010 umass_disco(sc); 1011 USB_ATTACH_ERROR_RETURN; 1012 } 1013 } 1014 1015 /* initialisation of generic part */ 1016 sc->transfer_state = TSTATE_IDLE; 1017 1018 /* request a sufficient number of xfer handles */ 1019 for (i = 0; i < XFER_NR; i++) { 1020 sc->transfer_xfer[i] = usbd_alloc_xfer(uaa->device); 1021 if (sc->transfer_xfer[i] == 0) { 1022 DPRINTF(UDMASS_USB, ("%s: Out of memory\n", 1023 USBDEVNAME(sc->sc_dev))); 1024 umass_disco(sc); 1025 USB_ATTACH_ERROR_RETURN; 1026 } 1027 } 1028 /* Allocate buffer for data transfer (it's huge). */ 1029 switch (sc->proto & PROTO_WIRE) { 1030 case PROTO_BBB: 1031 bno = XFER_BBB_DATA; 1032 goto dalloc; 1033 case PROTO_CBI: 1034 bno = XFER_CBI_DATA; 1035 goto dalloc; 1036 case PROTO_CBI_I: 1037 bno = XFER_CBI_DATA; 1038 dalloc: 1039 sc->data_buffer = usbd_alloc_buffer(sc->transfer_xfer[bno], 1040 UMASS_MAX_TRANSFER_SIZE); 1041 if (sc->data_buffer == NULL) { 1042 umass_disco(sc); 1043 USB_ATTACH_ERROR_RETURN; 1044 } 1045 break; 1046 default: 1047 break; 1048 } 1049 1050 /* Initialise the wire protocol specific methods */ 1051 if (sc->proto & PROTO_BBB) { 1052 sc->reset = umass_bbb_reset; 1053 sc->transfer = umass_bbb_transfer; 1054 sc->state = umass_bbb_state; 1055 } else if ((sc->proto & PROTO_CBI) || (sc->proto & PROTO_CBI_I)) { 1056 sc->reset = umass_cbi_reset; 1057 sc->transfer = umass_cbi_transfer; 1058 sc->state = umass_cbi_state; 1059 #ifdef UMASS_DEBUG 1060 } else { 1061 panic("%s:%d: Unknown proto 0x%02x\n", 1062 __FILE__, __LINE__, sc->proto); 1063 #endif 1064 } 1065 1066 if (sc->drive == SHUTTLE_EUSB) 1067 umass_init_shuttle(sc); 1068 1069 #if defined(__FreeBSD__) 1070 if (sc->proto & PROTO_SCSI) 1071 sc->transform = umass_scsi_transform; 1072 else if (sc->proto & PROTO_UFI) 1073 sc->transform = umass_ufi_transform; 1074 else if (sc->proto & PROTO_ATAPI) 1075 sc->transform = umass_8070_transform; 1076 #ifdef UMASS_DEBUG 1077 else 1078 panic("No transformation defined for command proto 0x%02x\n", 1079 sc->proto & PROTO_COMMAND); 1080 #endif 1081 1082 /* From here onwards the device can be used. */ 1083 1084 if ((sc->proto & PROTO_SCSI) || 1085 (sc->proto & PROTO_ATAPI) || 1086 (sc->proto & PROTO_UFI)) { 1087 /* Prepare the SCSI command block */ 1088 sc->cam_scsi_sense.opcode = REQUEST_SENSE; 1089 1090 /* If this is the first device register the SIM */ 1091 if (umass_sim == NULL) { 1092 err = umass_cam_attach_sim(); 1093 if (err) { 1094 umass_disco(self); 1095 USB_ATTACH_ERROR_RETURN; 1096 } 1097 } 1098 1099 /* Attach the new device to our SCSI host controller (SIM) */ 1100 err = umass_cam_attach(sc); 1101 if (err) { 1102 umass_disco(self); 1103 USB_ATTACH_ERROR_RETURN; 1104 } 1105 } else { 1106 panic("%s:%d: Unknown proto 0x%02x\n", 1107 __FILE__, __LINE__, sc->proto); 1108 } 1109 #elif defined(__NetBSD__) || defined(__OpenBSD__) 1110 /* 1111 * Fill in the adapter. 1112 */ 1113 sc->sc_adapter.scsipi_cmd = umass_scsipi_cmd; 1114 sc->sc_adapter.scsipi_minphys = umass_scsipi_minphys; 1115 sc->sc_adapter.scsipi_ioctl = umass_scsipi_ioctl; 1116 sc->sc_adapter.scsipi_getgeom = umass_scsipi_getgeom; 1117 1118 /* 1119 * fill in the prototype scsipi_link. 1120 */ 1121 switch (sc->proto & PROTO_COMMAND) { 1122 case PROTO_UFI: 1123 case PROTO_RBC: 1124 sc->u.sc_link.quirks |= SDEV_ONLYBIG; 1125 /* fall into */ 1126 case PROTO_SCSI: 1127 sc->u.sc_link.type = BUS_SCSI; 1128 sc->u.sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE; 1129 sc->u.sc_link.adapter_softc = sc; 1130 sc->u.sc_link.scsipi_scsi.adapter_target = UMASS_SCSIID_HOST; 1131 sc->u.sc_link.adapter = &sc->sc_adapter; 1132 sc->u.sc_link.device = &umass_dev; 1133 sc->u.sc_link.openings = 1; 1134 sc->u.sc_link.scsipi_scsi.max_target = UMASS_SCSIID_DEVICE; 1135 sc->u.sc_link.scsipi_scsi.max_lun = sc->maxlun; 1136 1137 if (sc->quirks & NO_TEST_UNIT_READY) 1138 sc->u.sc_link.quirks |= ADEV_NOTUR; 1139 break; 1140 1141 #if NATAPIBUS > 0 1142 case PROTO_ATAPI: 1143 sc->u.aa.sc_aa.aa_type = T_ATAPI; 1144 sc->u.aa.sc_aa.aa_channel = 0; 1145 sc->u.aa.sc_aa.aa_openings = 1; 1146 sc->u.aa.sc_aa.aa_drv_data = &sc->u.aa.sc_aa_drive; 1147 sc->u.aa.sc_aa.aa_bus_private = &sc->sc_atapi_adapter; 1148 sc->sc_atapi_adapter.atapi_probedev = umass_atapi_probedev; 1149 sc->sc_atapi_adapter.atapi_kill_pending = scsi_kill_pending; 1150 break; 1151 #endif 1152 1153 default: 1154 printf("%s: proto=0x%x not supported yet\n", 1155 USBDEVNAME(sc->sc_dev), sc->proto); 1156 umass_disco(sc); 1157 USB_ATTACH_ERROR_RETURN; 1158 } 1159 1160 sc->sc_child = config_found(&sc->sc_dev, &sc->u, scsipiprint); 1161 if (sc->sc_child == NULL) { 1162 umass_disco(sc); 1163 /* Not an error, just not a complete success. */ 1164 USB_ATTACH_SUCCESS_RETURN; 1165 } 1166 #endif 1167 1168 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 1169 USBDEV(sc->sc_dev)); 1170 1171 DPRINTF(UDMASS_GEN, ("%s: Attach finished\n", USBDEVNAME(sc->sc_dev))); 1172 1173 USB_ATTACH_SUCCESS_RETURN; 1174 } 1175 1176 Static int 1177 scsipiprint(void *aux, const char *pnp) 1178 { 1179 struct scsipi_link *l = aux; 1180 1181 if (l->type == BUS_SCSI) 1182 return (scsiprint(aux, pnp)); 1183 else { 1184 #if NATAPIBUS > 0 1185 extern int atapi_print(void *aux, const char *pnp); 1186 return (atapi_print(aux, pnp)); 1187 #else 1188 if (pnp) 1189 printf("atapibus at %s", pnp); 1190 return (UNCONF); 1191 #endif 1192 } 1193 } 1194 1195 USB_DETACH(umass) 1196 { 1197 USB_DETACH_START(umass, sc); 1198 int rv = 0; 1199 1200 DPRINTF(UDMASS_USB, ("%s: detached\n", USBDEVNAME(sc->sc_dev))); 1201 1202 /* Abort the pipes to wake up any waiting processes. */ 1203 if (sc->bulkout_pipe != NULL) 1204 usbd_abort_pipe(sc->bulkout_pipe); 1205 if (sc->bulkin_pipe != NULL) 1206 usbd_abort_pipe(sc->bulkin_pipe); 1207 if (sc->intrin_pipe != NULL) 1208 usbd_abort_pipe(sc->intrin_pipe); 1209 1210 #if 0 1211 /* Do we really need reference counting? Perhaps in ioctl() */ 1212 s = splusb(); 1213 if (--sc->sc_refcnt >= 0) { 1214 /* Wait for processes to go away. */ 1215 usb_detach_wait(USBDEV(sc->sc_dev)); 1216 } 1217 splx(s); 1218 #endif 1219 1220 #if defined(__FreeBSD__) 1221 if ((sc->proto & PROTO_SCSI) || 1222 (sc->proto & PROTO_ATAPI) || 1223 (sc->proto & PROTO_UFI)) 1224 /* detach the device from the SCSI host controller (SIM) */ 1225 rv = umass_cam_detach(sc); 1226 #elif defined(__NetBSD__) || defined(__OpenBSD__) 1227 if (sc->sc_child != NULL) 1228 rv = config_detach(sc->sc_child, flags); 1229 #endif 1230 if (rv != 0) 1231 return (rv); 1232 1233 umass_disco(sc); 1234 1235 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 1236 USBDEV(sc->sc_dev)); 1237 1238 return (0); 1239 } 1240 1241 #if defined(__NetBSD__) || defined(__OpenBSD__) 1242 int 1243 umass_activate(struct device *self, enum devact act) 1244 { 1245 struct umass_softc *sc = (struct umass_softc *) self; 1246 int rv = 0; 1247 1248 DPRINTF(UDMASS_USB, ("%s: umass_activate: %d\n", 1249 USBDEVNAME(sc->sc_dev), act)); 1250 1251 switch (act) { 1252 case DVACT_ACTIVATE: 1253 rv = EOPNOTSUPP; 1254 break; 1255 1256 case DVACT_DEACTIVATE: 1257 if (sc->sc_child == NULL) 1258 break; 1259 rv = config_deactivate(sc->sc_child); 1260 DPRINTF(UDMASS_USB, ("%s: umass_activate: child " 1261 "returned %d\n", USBDEVNAME(sc->sc_dev), rv)); 1262 if (rv == 0) 1263 sc->sc_dying = 1; 1264 break; 1265 } 1266 return (rv); 1267 } 1268 #endif 1269 1270 Static void 1271 umass_disco(struct umass_softc *sc) 1272 { 1273 int i; 1274 1275 DPRINTF(UDMASS_GEN, ("umass_disco\n")); 1276 1277 /* Free the xfers. */ 1278 for (i = 0; i < XFER_NR; i++) 1279 if (sc->transfer_xfer[i] != NULL) { 1280 usbd_free_xfer(sc->transfer_xfer[i]); 1281 sc->transfer_xfer[i] = NULL; 1282 } 1283 1284 /* Remove all the pipes. */ 1285 if (sc->bulkout_pipe != NULL) 1286 usbd_close_pipe(sc->bulkout_pipe); 1287 if (sc->bulkin_pipe != NULL) 1288 usbd_close_pipe(sc->bulkin_pipe); 1289 if (sc->intrin_pipe != NULL) 1290 usbd_close_pipe(sc->intrin_pipe); 1291 } 1292 1293 Static void 1294 umass_init_shuttle(struct umass_softc *sc) 1295 { 1296 usb_device_request_t req; 1297 u_char status[2]; 1298 1299 /* The Linux driver does this */ 1300 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1301 req.bRequest = 1; 1302 USETW(req.wValue, 0); 1303 USETW(req.wIndex, sc->ifaceno); 1304 USETW(req.wLength, sizeof status); 1305 (void)usbd_do_request(sc->sc_udev, &req, &status); 1306 } 1307 1308 /* 1309 * Generic functions to handle transfers 1310 */ 1311 1312 Static usbd_status 1313 umass_setup_transfer(struct umass_softc *sc, usbd_pipe_handle pipe, 1314 void *buffer, int buflen, int flags, 1315 usbd_xfer_handle xfer) 1316 { 1317 usbd_status err; 1318 1319 if (sc->sc_dying) 1320 return (USBD_IOERROR); 1321 1322 /* Initialiase a USB transfer and then schedule it */ 1323 1324 usbd_setup_xfer(xfer, pipe, (void *)sc, buffer, buflen, 1325 flags | sc->sc_xfer_flags, sc->timeout, sc->state); 1326 1327 err = usbd_transfer(xfer); 1328 DPRINTF(UDMASS_XFER,("%s: start xfer buffer=%p buflen=%d flags=0x%x " 1329 "timeout=%d\n", USBDEVNAME(sc->sc_dev), 1330 buffer, buflen, flags | sc->sc_xfer_flags, sc->timeout)); 1331 if (err && err != USBD_IN_PROGRESS) { 1332 DPRINTF(UDMASS_BBB, ("%s: failed to setup transfer, %s\n", 1333 USBDEVNAME(sc->sc_dev), usbd_errstr(err))); 1334 return (err); 1335 } 1336 1337 return (USBD_NORMAL_COMPLETION); 1338 } 1339 1340 1341 Static usbd_status 1342 umass_setup_ctrl_transfer(struct umass_softc *sc, usbd_device_handle dev, 1343 usb_device_request_t *req, 1344 void *buffer, int buflen, int flags, 1345 usbd_xfer_handle xfer) 1346 { 1347 usbd_status err; 1348 1349 if (sc->sc_dying) 1350 return (USBD_IOERROR); 1351 1352 /* Initialiase a USB control transfer and then schedule it */ 1353 1354 usbd_setup_default_xfer(xfer, dev, (void *) sc, 1355 sc->timeout, req, buffer, buflen, flags, sc->state); 1356 1357 err = usbd_transfer(xfer); 1358 if (err && err != USBD_IN_PROGRESS) { 1359 DPRINTF(UDMASS_BBB, ("%s: failed to setup ctrl transfer, %s\n", 1360 USBDEVNAME(sc->sc_dev), usbd_errstr(err))); 1361 1362 /* do not reset, as this would make us loop */ 1363 return (err); 1364 } 1365 1366 return (USBD_NORMAL_COMPLETION); 1367 } 1368 1369 Static void 1370 umass_clear_endpoint_stall(struct umass_softc *sc, 1371 u_int8_t endpt, usbd_pipe_handle pipe, 1372 int state, usbd_xfer_handle xfer) 1373 { 1374 usbd_device_handle dev; 1375 1376 if (sc->sc_dying) 1377 return; 1378 1379 DPRINTF(UDMASS_BBB, ("%s: Clear endpoint 0x%02x stall\n", 1380 USBDEVNAME(sc->sc_dev), endpt)); 1381 1382 usbd_interface2device_handle(sc->iface, &dev); 1383 1384 sc->transfer_state = state; 1385 1386 usbd_clear_endpoint_toggle(pipe); 1387 1388 sc->request.bmRequestType = UT_WRITE_ENDPOINT; 1389 sc->request.bRequest = UR_CLEAR_FEATURE; 1390 USETW(sc->request.wValue, UF_ENDPOINT_HALT); 1391 USETW(sc->request.wIndex, endpt); 1392 USETW(sc->request.wLength, 0); 1393 umass_setup_ctrl_transfer(sc, dev, &sc->request, NULL, 0, 0, xfer); 1394 } 1395 1396 #if 0 1397 Static void 1398 umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv) 1399 { 1400 sc->transfer_cb = cb; 1401 sc->transfer_priv = priv; 1402 1403 /* The reset is a forced reset, so no error (yet) */ 1404 sc->reset(sc, STATUS_CMD_OK); 1405 } 1406 #endif 1407 1408 /* 1409 * Bulk protocol specific functions 1410 */ 1411 1412 Static void 1413 umass_bbb_reset(struct umass_softc *sc, int status) 1414 { 1415 usbd_device_handle dev; 1416 1417 KASSERT(sc->proto & PROTO_BBB, 1418 ("sc->proto == 0x%02x wrong for umass_bbb_reset\n", sc->proto)); 1419 1420 if (sc->sc_dying) 1421 return; 1422 1423 /* 1424 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class) 1425 * 1426 * For Reset Recovery the host shall issue in the following order: 1427 * a) a Bulk-Only Mass Storage Reset 1428 * b) a Clear Feature HALT to the Bulk-In endpoint 1429 * c) a Clear Feature HALT to the Bulk-Out endpoint 1430 * 1431 * This is done in 3 steps, states: 1432 * TSTATE_BBB_RESET1 1433 * TSTATE_BBB_RESET2 1434 * TSTATE_BBB_RESET3 1435 * 1436 * If the reset doesn't succeed, the device should be port reset. 1437 */ 1438 1439 DPRINTF(UDMASS_BBB, ("%s: Bulk Reset\n", 1440 USBDEVNAME(sc->sc_dev))); 1441 1442 sc->transfer_state = TSTATE_BBB_RESET1; 1443 sc->transfer_status = status; 1444 1445 usbd_interface2device_handle(sc->iface, &dev); 1446 1447 /* reset is a class specific interface write */ 1448 sc->request.bmRequestType = UT_WRITE_CLASS_INTERFACE; 1449 sc->request.bRequest = UR_BBB_RESET; 1450 USETW(sc->request.wValue, 0); 1451 USETW(sc->request.wIndex, sc->ifaceno); 1452 USETW(sc->request.wLength, 0); 1453 umass_setup_ctrl_transfer(sc, dev, &sc->request, NULL, 0, 0, 1454 sc->transfer_xfer[XFER_BBB_RESET1]); 1455 } 1456 1457 Static void 1458 umass_bbb_transfer(struct umass_softc *sc, int lun, void *cmd, int cmdlen, 1459 void *data, int datalen, int dir, 1460 transfer_cb_f cb, void *priv) 1461 { 1462 static int dCBWtag = 42; /* unique for CBW of transfer */ 1463 1464 DPRINTF(UDMASS_BBB,("%s: umass_bbb_transfer cmd=0x%02x\n", 1465 USBDEVNAME(sc->sc_dev), *(u_char*)cmd)); 1466 1467 KASSERT(sc->proto & PROTO_BBB, 1468 ("sc->proto == 0x%02x wrong for umass_bbb_transfer\n", 1469 sc->proto)); 1470 1471 /* 1472 * Do a Bulk-Only transfer with cmdlen bytes from cmd, possibly 1473 * a data phase of datalen bytes from/to the device and finally a 1474 * csw read phase. 1475 * If the data direction was inbound a maximum of datalen bytes 1476 * is stored in the buffer pointed to by data. 1477 * 1478 * umass_bbb_transfer initialises the transfer and lets the state 1479 * machine in umass_bbb_state handle the completion. It uses the 1480 * following states: 1481 * TSTATE_BBB_COMMAND 1482 * -> TSTATE_BBB_DATA 1483 * -> TSTATE_BBB_STATUS 1484 * -> TSTATE_BBB_STATUS2 1485 * -> TSTATE_BBB_IDLE 1486 * 1487 * An error in any of those states will invoke 1488 * umass_bbb_reset. 1489 */ 1490 1491 /* check the given arguments */ 1492 KASSERT(datalen == 0 || data != NULL, 1493 ("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev))); 1494 KASSERT(cmdlen <= CBWCDBLENGTH, 1495 ("%s: cmdlen exceeds CDB length in CBW (%d > %d)", 1496 USBDEVNAME(sc->sc_dev), cmdlen, CBWCDBLENGTH)); 1497 KASSERT(dir == DIR_NONE || datalen > 0, 1498 ("%s: datalen == 0 while direction is not NONE\n", 1499 USBDEVNAME(sc->sc_dev))); 1500 KASSERT(datalen == 0 || dir != DIR_NONE, 1501 ("%s: direction is NONE while datalen is not zero\n", 1502 USBDEVNAME(sc->sc_dev))); 1503 KASSERT(sizeof(umass_bbb_cbw_t) == UMASS_BBB_CBW_SIZE, 1504 ("%s: CBW struct does not have the right size (%d vs. %d)\n", 1505 USBDEVNAME(sc->sc_dev), 1506 sizeof(umass_bbb_cbw_t), UMASS_BBB_CBW_SIZE)); 1507 KASSERT(sizeof(umass_bbb_csw_t) == UMASS_BBB_CSW_SIZE, 1508 ("%s: CSW struct does not have the right size (%d vs. %d)\n", 1509 USBDEVNAME(sc->sc_dev), 1510 sizeof(umass_bbb_csw_t), UMASS_BBB_CSW_SIZE)); 1511 1512 /* 1513 * Determine the direction of the data transfer and the length. 1514 * 1515 * dCBWDataTransferLength (datalen) : 1516 * This field indicates the number of bytes of data that the host 1517 * intends to transfer on the IN or OUT Bulk endpoint(as indicated by 1518 * the Direction bit) during the execution of this command. If this 1519 * field is set to 0, the device will expect that no data will be 1520 * transferred IN or OUT during this command, regardless of the value 1521 * of the Direction bit defined in dCBWFlags. 1522 * 1523 * dCBWFlags (dir) : 1524 * The bits of the Flags field are defined as follows: 1525 * Bits 0-6 reserved 1526 * Bit 7 Direction - this bit shall be ignored if the 1527 * dCBWDataTransferLength field is zero. 1528 * 0 = data Out from host to device 1529 * 1 = data In from device to host 1530 */ 1531 1532 /* Fill in the Command Block Wrapper */ 1533 USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE); 1534 USETDW(sc->cbw.dCBWTag, dCBWtag); 1535 dCBWtag++; /* cannot be done in macro (it will be done 4 times) */ 1536 USETDW(sc->cbw.dCBWDataTransferLength, datalen); 1537 /* DIR_NONE is treated as DIR_OUT (0x00) */ 1538 sc->cbw.bCBWFlags = (dir == DIR_IN? CBWFLAGS_IN:CBWFLAGS_OUT); 1539 sc->cbw.bCBWLUN = lun; 1540 sc->cbw.bCDBLength = cmdlen; 1541 bcopy(cmd, sc->cbw.CBWCDB, cmdlen); 1542 1543 DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw)); 1544 1545 /* store the details for the data transfer phase */ 1546 sc->transfer_dir = dir; 1547 sc->transfer_data = data; 1548 sc->transfer_datalen = datalen; 1549 sc->transfer_actlen = 0; 1550 sc->transfer_cb = cb; 1551 sc->transfer_priv = priv; 1552 sc->transfer_status = STATUS_CMD_OK; 1553 1554 /* move from idle to the command state */ 1555 sc->transfer_state = TSTATE_BBB_COMMAND; 1556 1557 /* Send the CBW from host to device via bulk-out endpoint. */ 1558 if (umass_setup_transfer(sc, sc->bulkout_pipe, 1559 &sc->cbw, UMASS_BBB_CBW_SIZE, 0, 1560 sc->transfer_xfer[XFER_BBB_CBW])) { 1561 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1562 } 1563 } 1564 1565 1566 Static void 1567 umass_bbb_state(usbd_xfer_handle xfer, usbd_private_handle priv, 1568 usbd_status err) 1569 { 1570 struct umass_softc *sc = (struct umass_softc *) priv; 1571 usbd_xfer_handle next_xfer; 1572 1573 KASSERT(sc->proto & PROTO_BBB, 1574 ("sc->proto == 0x%02x wrong for umass_bbb_state\n",sc->proto)); 1575 1576 if (sc->sc_dying) 1577 return; 1578 1579 /* 1580 * State handling for BBB transfers. 1581 * 1582 * The subroutine is rather long. It steps through the states given in 1583 * Annex A of the Bulk-Only specification. 1584 * Each state first does the error handling of the previous transfer 1585 * and then prepares the next transfer. 1586 * Each transfer is done asynchroneously so after the request/transfer 1587 * has been submitted you will find a 'return;'. 1588 */ 1589 1590 DPRINTF(UDMASS_BBB, ("%s: Handling BBB state %d (%s), xfer=%p, %s\n", 1591 USBDEVNAME(sc->sc_dev), sc->transfer_state, 1592 states[sc->transfer_state], xfer, usbd_errstr(err))); 1593 1594 switch (sc->transfer_state) { 1595 1596 /***** Bulk Transfer *****/ 1597 case TSTATE_BBB_COMMAND: 1598 /* Command transport phase, error handling */ 1599 if (err) { 1600 DPRINTF(UDMASS_BBB, ("%s: failed to send CBW\n", 1601 USBDEVNAME(sc->sc_dev))); 1602 /* If the device detects that the CBW is invalid, then 1603 * the device may STALL both bulk endpoints and require 1604 * a Bulk-Reset 1605 */ 1606 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1607 return; 1608 } 1609 1610 /* Data transport phase, setup transfer */ 1611 sc->transfer_state = TSTATE_BBB_DATA; 1612 if (sc->transfer_dir == DIR_IN) { 1613 if (umass_setup_transfer(sc, sc->bulkin_pipe, 1614 sc->data_buffer, sc->transfer_datalen, 1615 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1616 sc->transfer_xfer[XFER_BBB_DATA])) 1617 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1618 1619 return; 1620 } else if (sc->transfer_dir == DIR_OUT) { 1621 memcpy(sc->data_buffer, sc->transfer_data, 1622 sc->transfer_datalen); 1623 if (umass_setup_transfer(sc, sc->bulkout_pipe, 1624 sc->data_buffer, sc->transfer_datalen, 1625 USBD_NO_COPY,/* fixed length transfer */ 1626 sc->transfer_xfer[XFER_BBB_DATA])) 1627 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1628 1629 return; 1630 } else { 1631 DPRINTF(UDMASS_BBB, ("%s: no data phase\n", 1632 USBDEVNAME(sc->sc_dev))); 1633 } 1634 1635 /* FALLTHROUGH if no data phase, err == 0 */ 1636 case TSTATE_BBB_DATA: 1637 /* Command transport phase, error handling (ignored if no data 1638 * phase (fallthrough from previous state)) */ 1639 if (sc->transfer_dir != DIR_NONE) { 1640 /* retrieve the length of the transfer that was done */ 1641 usbd_get_xfer_status(xfer, NULL, NULL, 1642 &sc->transfer_actlen, NULL); 1643 1644 if (err) { 1645 DPRINTF(UDMASS_BBB, ("%s: Data-%s %db failed, " 1646 "%s\n", USBDEVNAME(sc->sc_dev), 1647 (sc->transfer_dir == DIR_IN?"in":"out"), 1648 sc->transfer_datalen,usbd_errstr(err))); 1649 1650 if (err == USBD_STALLED) { 1651 umass_clear_endpoint_stall(sc, 1652 (sc->transfer_dir == DIR_IN? 1653 sc->bulkin:sc->bulkout), 1654 (sc->transfer_dir == DIR_IN? 1655 sc->bulkin_pipe:sc->bulkout_pipe), 1656 TSTATE_BBB_DCLEAR, 1657 sc->transfer_xfer[XFER_BBB_DCLEAR]); 1658 return; 1659 } else { 1660 /* Unless the error is a pipe stall the 1661 * error is fatal. 1662 */ 1663 umass_bbb_reset(sc,STATUS_WIRE_FAILED); 1664 return; 1665 } 1666 } 1667 } 1668 1669 if (sc->transfer_dir == DIR_IN) 1670 memcpy(sc->transfer_data, sc->data_buffer, 1671 sc->transfer_actlen); 1672 1673 DIF(UDMASS_BBB, if (sc->transfer_dir == DIR_IN) 1674 umass_dump_buffer(sc, sc->transfer_data, 1675 sc->transfer_datalen, 48)); 1676 1677 /* FALLTHROUGH, err == 0 (no data phase or successfull) */ 1678 case TSTATE_BBB_DCLEAR: /* stall clear after data phase */ 1679 case TSTATE_BBB_SCLEAR: /* stall clear after status phase */ 1680 /* Reading of CSW after bulk stall condition in data phase 1681 * (TSTATE_BBB_DATA2) or bulk-in stall condition after 1682 * reading CSW (TSTATE_BBB_SCLEAR). 1683 * In the case of no data phase or successfull data phase, 1684 * err == 0 and the following if block is passed. 1685 */ 1686 if (err) { /* should not occur */ 1687 /* try the transfer below, even if clear stall failed */ 1688 DPRINTF(UDMASS_BBB, ("%s: bulk-%s stall clear failed" 1689 ", %s\n", USBDEVNAME(sc->sc_dev), 1690 (sc->transfer_dir == DIR_IN? "in":"out"), 1691 usbd_errstr(err))); 1692 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1693 return; 1694 } 1695 1696 /* Status transport phase, setup transfer */ 1697 if (sc->transfer_state == TSTATE_BBB_COMMAND || 1698 sc->transfer_state == TSTATE_BBB_DATA || 1699 sc->transfer_state == TSTATE_BBB_DCLEAR) { 1700 /* After no data phase, successfull data phase and 1701 * after clearing bulk-in/-out stall condition 1702 */ 1703 sc->transfer_state = TSTATE_BBB_STATUS1; 1704 next_xfer = sc->transfer_xfer[XFER_BBB_CSW1]; 1705 } else { 1706 /* After first attempt of fetching CSW */ 1707 sc->transfer_state = TSTATE_BBB_STATUS2; 1708 next_xfer = sc->transfer_xfer[XFER_BBB_CSW2]; 1709 } 1710 1711 /* Read the Command Status Wrapper via bulk-in endpoint. */ 1712 if (umass_setup_transfer(sc, sc->bulkin_pipe, 1713 &sc->csw, UMASS_BBB_CSW_SIZE, 0, 1714 next_xfer)) { 1715 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1716 return; 1717 } 1718 1719 return; 1720 case TSTATE_BBB_STATUS1: /* first attempt */ 1721 case TSTATE_BBB_STATUS2: /* second attempt */ 1722 /* Status transfer, error handling */ 1723 if (err) { 1724 DPRINTF(UDMASS_BBB, ("%s: Failed to read CSW, %s%s\n", 1725 USBDEVNAME(sc->sc_dev), usbd_errstr(err), 1726 (sc->transfer_state == TSTATE_BBB_STATUS1? 1727 ", retrying":""))); 1728 1729 /* If this was the first attempt at fetching the CSW 1730 * retry it, otherwise fail. 1731 */ 1732 if (sc->transfer_state == TSTATE_BBB_STATUS1) { 1733 umass_clear_endpoint_stall(sc, 1734 sc->bulkin, sc->bulkin_pipe, 1735 TSTATE_BBB_SCLEAR, 1736 sc->transfer_xfer[XFER_BBB_SCLEAR]); 1737 return; 1738 } else { 1739 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1740 return; 1741 } 1742 } 1743 1744 DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw)); 1745 1746 /* Check CSW and handle any error */ 1747 if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) { 1748 /* Invalid CSW: Wrong signature or wrong tag might 1749 * indicate that the device is confused -> reset it. 1750 */ 1751 printf("%s: Invalid CSW: sig 0x%08x should be 0x%08x\n", 1752 USBDEVNAME(sc->sc_dev), 1753 UGETDW(sc->csw.dCSWSignature), 1754 CSWSIGNATURE); 1755 1756 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1757 return; 1758 } else if (UGETDW(sc->csw.dCSWTag) 1759 != UGETDW(sc->cbw.dCBWTag)) { 1760 printf("%s: Invalid CSW: tag %d should be %d\n", 1761 USBDEVNAME(sc->sc_dev), 1762 UGETDW(sc->csw.dCSWTag), 1763 UGETDW(sc->cbw.dCBWTag)); 1764 1765 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1766 return; 1767 1768 /* CSW is valid here */ 1769 } else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) { 1770 printf("%s: Invalid CSW: status %d > %d\n", 1771 USBDEVNAME(sc->sc_dev), 1772 sc->csw.bCSWStatus, 1773 CSWSTATUS_PHASE); 1774 1775 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1776 return; 1777 } else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) { 1778 printf("%s: Phase Error, residue = %d\n", 1779 USBDEVNAME(sc->sc_dev), 1780 UGETDW(sc->csw.dCSWDataResidue)); 1781 1782 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1783 return; 1784 1785 } else if (sc->transfer_actlen > sc->transfer_datalen) { 1786 /* Buffer overrun! Don't let this go by unnoticed */ 1787 panic("%s: transferred %d bytes instead of %d bytes\n", 1788 USBDEVNAME(sc->sc_dev), 1789 sc->transfer_actlen, sc->transfer_datalen); 1790 } else if (sc->transfer_datalen - sc->transfer_actlen 1791 != UGETDW(sc->csw.dCSWDataResidue)) { 1792 DPRINTF(UDMASS_BBB, ("%s: actlen=%d != residue=%d\n", 1793 USBDEVNAME(sc->sc_dev), 1794 sc->transfer_datalen - sc->transfer_actlen, 1795 UGETDW(sc->csw.dCSWDataResidue))); 1796 1797 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1798 return; 1799 1800 } else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) { 1801 DPRINTF(UDMASS_BBB, ("%s: Command Failed, res = %d\n", 1802 USBDEVNAME(sc->sc_dev), 1803 UGETDW(sc->csw.dCSWDataResidue))); 1804 1805 /* SCSI command failed but transfer was succesful */ 1806 sc->transfer_state = TSTATE_IDLE; 1807 sc->transfer_cb(sc, sc->transfer_priv, 1808 UGETDW(sc->csw.dCSWDataResidue), 1809 STATUS_CMD_FAILED); 1810 1811 return; 1812 1813 } else { /* success */ 1814 sc->transfer_state = TSTATE_IDLE; 1815 sc->transfer_cb(sc, sc->transfer_priv, 1816 UGETDW(sc->csw.dCSWDataResidue), 1817 STATUS_CMD_OK); 1818 1819 return; 1820 } 1821 1822 /***** Bulk Reset *****/ 1823 case TSTATE_BBB_RESET1: 1824 if (err) 1825 printf("%s: BBB reset failed, %s\n", 1826 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1827 1828 umass_clear_endpoint_stall(sc, 1829 sc->bulkin, sc->bulkin_pipe, TSTATE_BBB_RESET2, 1830 sc->transfer_xfer[XFER_BBB_RESET2]); 1831 1832 return; 1833 case TSTATE_BBB_RESET2: 1834 if (err) /* should not occur */ 1835 printf("%s: BBB bulk-in clear stall failed, %s\n", 1836 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1837 /* no error recovery, otherwise we end up in a loop */ 1838 1839 umass_clear_endpoint_stall(sc, 1840 sc->bulkout, sc->bulkout_pipe, TSTATE_BBB_RESET3, 1841 sc->transfer_xfer[XFER_BBB_RESET3]); 1842 1843 return; 1844 case TSTATE_BBB_RESET3: 1845 if (err) /* should not occur */ 1846 printf("%s: BBB bulk-out clear stall failed, %s\n", 1847 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1848 /* no error recovery, otherwise we end up in a loop */ 1849 1850 sc->transfer_state = TSTATE_IDLE; 1851 if (sc->transfer_priv) { 1852 sc->transfer_cb(sc, sc->transfer_priv, 1853 sc->transfer_datalen, 1854 sc->transfer_status); 1855 } 1856 1857 return; 1858 1859 /***** Default *****/ 1860 default: 1861 panic("%s: Unknown state %d\n", 1862 USBDEVNAME(sc->sc_dev), sc->transfer_state); 1863 } 1864 } 1865 1866 /* 1867 * Command/Bulk/Interrupt (CBI) specific functions 1868 */ 1869 1870 Static int 1871 umass_cbi_adsc(struct umass_softc *sc, char *buffer, int buflen, 1872 usbd_xfer_handle xfer) 1873 { 1874 usbd_device_handle dev; 1875 1876 KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I), 1877 ("sc->proto == 0x%02x wrong for umass_cbi_adsc\n",sc->proto)); 1878 1879 usbd_interface2device_handle(sc->iface, &dev); 1880 1881 sc->request.bmRequestType = UT_WRITE_CLASS_INTERFACE; 1882 sc->request.bRequest = UR_CBI_ADSC; 1883 USETW(sc->request.wValue, 0); 1884 USETW(sc->request.wIndex, sc->ifaceno); 1885 USETW(sc->request.wLength, buflen); 1886 return umass_setup_ctrl_transfer(sc, dev, &sc->request, buffer, 1887 buflen, 0, xfer); 1888 } 1889 1890 1891 Static void 1892 umass_cbi_reset(struct umass_softc *sc, int status) 1893 { 1894 int i; 1895 # define SEND_DIAGNOSTIC_CMDLEN 12 1896 1897 KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I), 1898 ("sc->proto == 0x%02x wrong for umass_cbi_reset\n",sc->proto)); 1899 1900 if (sc->sc_dying) 1901 return; 1902 1903 /* 1904 * Command Block Reset Protocol 1905 * 1906 * First send a reset request to the device. Then clear 1907 * any possibly stalled bulk endpoints. 1908 1909 * This is done in 3 steps, states: 1910 * TSTATE_CBI_RESET1 1911 * TSTATE_CBI_RESET2 1912 * TSTATE_CBI_RESET3 1913 * 1914 * If the reset doesn't succeed, the device should be port reset. 1915 */ 1916 1917 DPRINTF(UDMASS_CBI, ("%s: CBI Reset\n", 1918 USBDEVNAME(sc->sc_dev))); 1919 1920 KASSERT(sizeof(sc->cbl) >= SEND_DIAGNOSTIC_CMDLEN, 1921 ("%s: CBL struct is too small (%d < %d)\n", 1922 USBDEVNAME(sc->sc_dev), 1923 sizeof(sc->cbl), SEND_DIAGNOSTIC_CMDLEN)); 1924 1925 sc->transfer_state = TSTATE_CBI_RESET1; 1926 sc->transfer_status = status; 1927 1928 /* The 0x1d code is the SEND DIAGNOSTIC command. To distingiush between 1929 * the two the last 10 bytes of the cbl is filled with 0xff (section 1930 * 2.2 of the CBI spec). 1931 */ 1932 sc->cbl[0] = 0x1d; /* Command Block Reset */ 1933 sc->cbl[1] = 0x04; 1934 for (i = 2; i < SEND_DIAGNOSTIC_CMDLEN; i++) 1935 sc->cbl[i] = 0xff; 1936 1937 umass_cbi_adsc(sc, sc->cbl, SEND_DIAGNOSTIC_CMDLEN, 1938 sc->transfer_xfer[XFER_CBI_RESET1]); 1939 /* XXX if the command fails we should reset the port on the bub */ 1940 } 1941 1942 Static void 1943 umass_cbi_transfer(struct umass_softc *sc, int lun, 1944 void *cmd, int cmdlen, void *data, int datalen, int dir, 1945 transfer_cb_f cb, void *priv) 1946 { 1947 DPRINTF(UDMASS_CBI,("%s: umass_cbi_transfer cmd=0x%02x, len=%d\n", 1948 USBDEVNAME(sc->sc_dev), *(u_char*)cmd, datalen)); 1949 1950 KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I), 1951 ("sc->proto == 0x%02x wrong for umass_cbi_transfer\n", 1952 sc->proto)); 1953 1954 if (sc->sc_dying) 1955 return; 1956 1957 /* 1958 * Do a CBI transfer with cmdlen bytes from cmd, possibly 1959 * a data phase of datalen bytes from/to the device and finally a 1960 * csw read phase. 1961 * If the data direction was inbound a maximum of datalen bytes 1962 * is stored in the buffer pointed to by data. 1963 * 1964 * umass_cbi_transfer initialises the transfer and lets the state 1965 * machine in umass_cbi_state handle the completion. It uses the 1966 * following states: 1967 * TSTATE_CBI_COMMAND 1968 * -> XXX fill in 1969 * 1970 * An error in any of those states will invoke 1971 * umass_cbi_reset. 1972 */ 1973 1974 /* check the given arguments */ 1975 KASSERT(datalen == 0 || data != NULL, 1976 ("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev))); 1977 KASSERT(datalen == 0 || dir != DIR_NONE, 1978 ("%s: direction is NONE while datalen is not zero\n", 1979 USBDEVNAME(sc->sc_dev))); 1980 1981 /* store the details for the data transfer phase */ 1982 sc->transfer_dir = dir; 1983 sc->transfer_data = data; 1984 sc->transfer_datalen = datalen; 1985 sc->transfer_actlen = 0; 1986 sc->transfer_cb = cb; 1987 sc->transfer_priv = priv; 1988 sc->transfer_status = STATUS_CMD_OK; 1989 1990 /* move from idle to the command state */ 1991 sc->transfer_state = TSTATE_CBI_COMMAND; 1992 1993 /* Send the Command Block from host to device via control endpoint. */ 1994 if (umass_cbi_adsc(sc, cmd, cmdlen, sc->transfer_xfer[XFER_CBI_CB])) 1995 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1996 } 1997 1998 Static void 1999 umass_cbi_state(usbd_xfer_handle xfer, usbd_private_handle priv, 2000 usbd_status err) 2001 { 2002 struct umass_softc *sc = (struct umass_softc *) priv; 2003 2004 KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I), 2005 ("sc->proto == 0x%02x wrong for umass_cbi_state\n", sc->proto)); 2006 2007 if (sc->sc_dying) 2008 return; 2009 2010 /* 2011 * State handling for CBI transfers. 2012 */ 2013 2014 DPRINTF(UDMASS_CBI, ("%s: Handling CBI state %d (%s), xfer=%p, %s\n", 2015 USBDEVNAME(sc->sc_dev), sc->transfer_state, 2016 states[sc->transfer_state], xfer, usbd_errstr(err))); 2017 2018 switch (sc->transfer_state) { 2019 2020 /***** CBI Transfer *****/ 2021 case TSTATE_CBI_COMMAND: 2022 if (err == USBD_STALLED) { 2023 DPRINTF(UDMASS_CBI, ("%s: Command Transport failed\n", 2024 USBDEVNAME(sc->sc_dev))); 2025 /* Status transport by control pipe (section 2.3.2.1). 2026 * The command contained in the command block failed. 2027 * 2028 * The control pipe has already been unstalled by the 2029 * USB stack. 2030 * Section 2.4.3.1.1 states that the bulk in endpoints 2031 * should not stalled at this point. 2032 */ 2033 2034 sc->transfer_state = TSTATE_IDLE; 2035 sc->transfer_cb(sc, sc->transfer_priv, 2036 sc->transfer_datalen, 2037 STATUS_CMD_FAILED); 2038 2039 return; 2040 } else if (err) { 2041 DPRINTF(UDMASS_CBI, ("%s: failed to send ADSC\n", 2042 USBDEVNAME(sc->sc_dev))); 2043 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 2044 2045 return; 2046 } 2047 2048 sc->transfer_state = TSTATE_CBI_DATA; 2049 if (sc->transfer_dir == DIR_IN) { 2050 if (umass_setup_transfer(sc, sc->bulkin_pipe, 2051 sc->transfer_data, sc->transfer_datalen, 2052 USBD_SHORT_XFER_OK | USBD_NO_COPY, 2053 sc->transfer_xfer[XFER_CBI_DATA])) 2054 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 2055 2056 } else if (sc->transfer_dir == DIR_OUT) { 2057 memcpy(sc->data_buffer, sc->transfer_data, 2058 sc->transfer_datalen); 2059 if (umass_setup_transfer(sc, sc->bulkout_pipe, 2060 sc->transfer_data, sc->transfer_datalen, 2061 USBD_NO_COPY,/* fixed length transfer */ 2062 sc->transfer_xfer[XFER_CBI_DATA])) 2063 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 2064 2065 } else if (sc->proto & PROTO_CBI_I) { 2066 DPRINTF(UDMASS_CBI, ("%s: no data phase\n", 2067 USBDEVNAME(sc->sc_dev))); 2068 sc->transfer_state = TSTATE_CBI_STATUS; 2069 if (umass_setup_transfer(sc, sc->intrin_pipe, 2070 &sc->sbl, sizeof(sc->sbl), 2071 0, /* fixed length transfer */ 2072 sc->transfer_xfer[XFER_CBI_STATUS])){ 2073 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 2074 } 2075 } else { 2076 DPRINTF(UDMASS_CBI, ("%s: no data phase\n", 2077 USBDEVNAME(sc->sc_dev))); 2078 /* No command completion interrupt. Request 2079 * sense data. 2080 */ 2081 sc->transfer_state = TSTATE_IDLE; 2082 sc->transfer_cb(sc, sc->transfer_priv, 2083 0, STATUS_CMD_UNKNOWN); 2084 } 2085 2086 return; 2087 2088 case TSTATE_CBI_DATA: 2089 /* retrieve the length of the transfer that was done */ 2090 usbd_get_xfer_status(xfer,NULL,NULL,&sc->transfer_actlen,NULL); 2091 DPRINTF(UDMASS_CBI, ("%s: CBI_DATA actlen=%d\n", 2092 USBDEVNAME(sc->sc_dev), sc->transfer_actlen)); 2093 2094 if (err) { 2095 DPRINTF(UDMASS_CBI, ("%s: Data-%s %db failed, " 2096 "%s\n", USBDEVNAME(sc->sc_dev), 2097 (sc->transfer_dir == DIR_IN?"in":"out"), 2098 sc->transfer_datalen,usbd_errstr(err))); 2099 2100 if (err == USBD_STALLED) { 2101 umass_clear_endpoint_stall(sc, 2102 sc->bulkin, sc->bulkin_pipe, 2103 TSTATE_CBI_DCLEAR, 2104 sc->transfer_xfer[XFER_CBI_DCLEAR]); 2105 } else { 2106 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 2107 } 2108 return; 2109 } 2110 2111 if (sc->transfer_dir == DIR_IN) 2112 memcpy(sc->transfer_data, sc->data_buffer, 2113 sc->transfer_actlen); 2114 2115 DIF(UDMASS_CBI, if (sc->transfer_dir == DIR_IN) 2116 umass_dump_buffer(sc, sc->transfer_data, 2117 sc->transfer_actlen, 48)); 2118 2119 if (sc->proto & PROTO_CBI_I) { 2120 sc->transfer_state = TSTATE_CBI_STATUS; 2121 memset(&sc->sbl, 0, sizeof(sc->sbl)); 2122 if (umass_setup_transfer(sc, sc->intrin_pipe, 2123 &sc->sbl, sizeof(sc->sbl), 2124 0, /* fixed length transfer */ 2125 sc->transfer_xfer[XFER_CBI_STATUS])){ 2126 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 2127 } 2128 } else { 2129 /* No command completion interrupt. Request 2130 * sense to get status of command. 2131 */ 2132 sc->transfer_state = TSTATE_IDLE; 2133 sc->transfer_cb(sc, sc->transfer_priv, 2134 sc->transfer_datalen - sc->transfer_actlen, 2135 STATUS_CMD_UNKNOWN); 2136 } 2137 return; 2138 2139 case TSTATE_CBI_STATUS: 2140 if (err) { 2141 DPRINTF(UDMASS_CBI, ("%s: Status Transport failed\n", 2142 USBDEVNAME(sc->sc_dev))); 2143 /* Status transport by interrupt pipe (section 2.3.2.2). 2144 */ 2145 2146 if (err == USBD_STALLED) { 2147 umass_clear_endpoint_stall(sc, 2148 sc->intrin, sc->intrin_pipe, 2149 TSTATE_CBI_SCLEAR, 2150 sc->transfer_xfer[XFER_CBI_SCLEAR]); 2151 } else { 2152 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 2153 } 2154 return; 2155 } 2156 2157 /* Dissect the information in the buffer */ 2158 2159 if (sc->proto & PROTO_UFI) { 2160 int status; 2161 2162 /* Section 3.4.3.1.3 specifies that the UFI command 2163 * protocol returns an ASC and ASCQ in the interrupt 2164 * data block. 2165 */ 2166 2167 DPRINTF(UDMASS_CBI, ("%s: UFI CCI, ASC = 0x%02x, " 2168 "ASCQ = 0x%02x\n", 2169 USBDEVNAME(sc->sc_dev), 2170 sc->sbl.ufi.asc, sc->sbl.ufi.ascq)); 2171 2172 if (sc->sbl.ufi.asc == 0 && sc->sbl.ufi.ascq == 0) 2173 status = STATUS_CMD_OK; 2174 else 2175 status = STATUS_CMD_FAILED; 2176 2177 /* No sense, command successfull */ 2178 } else { 2179 /* Command Interrupt Data Block */ 2180 DPRINTF(UDMASS_CBI, ("%s: type=0x%02x, value=0x%02x\n", 2181 USBDEVNAME(sc->sc_dev), 2182 sc->sbl.common.type, sc->sbl.common.value)); 2183 2184 if (sc->sbl.common.type == IDB_TYPE_CCI) { 2185 int err; 2186 2187 if ((sc->sbl.common.value&IDB_VALUE_STATUS_MASK) 2188 == IDB_VALUE_PASS) { 2189 err = STATUS_CMD_OK; 2190 } else if ((sc->sbl.common.value & IDB_VALUE_STATUS_MASK) 2191 == IDB_VALUE_FAIL || 2192 (sc->sbl.common.value & IDB_VALUE_STATUS_MASK) 2193 == IDB_VALUE_PERSISTENT) { 2194 err = STATUS_CMD_FAILED; 2195 } else { 2196 err = STATUS_WIRE_FAILED; 2197 } 2198 2199 sc->transfer_state = TSTATE_IDLE; 2200 sc->transfer_cb(sc, sc->transfer_priv, 2201 sc->transfer_datalen, 2202 err); 2203 } 2204 } 2205 return; 2206 2207 case TSTATE_CBI_DCLEAR: 2208 if (err) { /* should not occur */ 2209 printf("%s: CBI bulk-in/out stall clear failed, %s\n", 2210 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 2211 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 2212 } 2213 2214 sc->transfer_state = TSTATE_IDLE; 2215 sc->transfer_cb(sc, sc->transfer_priv, 2216 sc->transfer_datalen, 2217 STATUS_CMD_FAILED); 2218 return; 2219 2220 case TSTATE_CBI_SCLEAR: 2221 if (err) /* should not occur */ 2222 printf("%s: CBI intr-in stall clear failed, %s\n", 2223 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 2224 2225 /* Something really bad is going on. Reset the device */ 2226 umass_cbi_reset(sc, STATUS_CMD_FAILED); 2227 return; 2228 2229 /***** CBI Reset *****/ 2230 case TSTATE_CBI_RESET1: 2231 if (err) 2232 printf("%s: CBI reset failed, %s\n", 2233 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 2234 2235 umass_clear_endpoint_stall(sc, 2236 sc->bulkin, sc->bulkin_pipe, TSTATE_CBI_RESET2, 2237 sc->transfer_xfer[XFER_CBI_RESET2]); 2238 2239 return; 2240 case TSTATE_CBI_RESET2: 2241 if (err) /* should not occur */ 2242 printf("%s: CBI bulk-in stall clear failed, %s\n", 2243 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 2244 /* no error recovery, otherwise we end up in a loop */ 2245 2246 umass_clear_endpoint_stall(sc, 2247 sc->bulkout, sc->bulkout_pipe, TSTATE_CBI_RESET3, 2248 sc->transfer_xfer[XFER_CBI_RESET3]); 2249 2250 return; 2251 case TSTATE_CBI_RESET3: 2252 if (err) /* should not occur */ 2253 printf("%s: CBI bulk-out stall clear failed, %s\n", 2254 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 2255 /* no error recovery, otherwise we end up in a loop */ 2256 2257 sc->transfer_state = TSTATE_IDLE; 2258 if (sc->transfer_priv) { 2259 sc->transfer_cb(sc, sc->transfer_priv, 2260 sc->transfer_datalen, 2261 sc->transfer_status); 2262 } 2263 2264 return; 2265 2266 2267 /***** Default *****/ 2268 default: 2269 panic("%s: Unknown state %d\n", 2270 USBDEVNAME(sc->sc_dev), sc->transfer_state); 2271 } 2272 } 2273 2274 usbd_status 2275 umass_bbb_get_max_lun(struct umass_softc *sc, u_int8_t *maxlun) 2276 { 2277 usbd_device_handle dev; 2278 usb_device_request_t req; 2279 usbd_status err; 2280 usb_interface_descriptor_t *id; 2281 2282 *maxlun = 0; /* Default to 0. */ 2283 2284 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun\n", USBDEVNAME(sc->sc_dev))); 2285 2286 usbd_interface2device_handle(sc->iface, &dev); 2287 id = usbd_get_interface_descriptor(sc->iface); 2288 2289 /* The Get Max Lun command is a class-specific request. */ 2290 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2291 req.bRequest = UR_BBB_GET_MAX_LUN; 2292 USETW(req.wValue, 0); 2293 USETW(req.wIndex, id->bInterfaceNumber); 2294 USETW(req.wLength, 1); 2295 2296 err = usbd_do_request(dev, &req, maxlun); 2297 switch (err) { 2298 case USBD_NORMAL_COMPLETION: 2299 DPRINTF(UDMASS_BBB, ("%s: Max Lun %d\n", 2300 USBDEVNAME(sc->sc_dev), *maxlun)); 2301 break; 2302 2303 case USBD_STALLED: 2304 /* 2305 * Device doesn't support Get Max Lun request. 2306 */ 2307 err = USBD_NORMAL_COMPLETION; 2308 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun not supported\n", 2309 USBDEVNAME(sc->sc_dev))); 2310 break; 2311 2312 case USBD_SHORT_XFER: 2313 /* 2314 * XXX This must mean Get Max Lun is not supported, too! 2315 */ 2316 err = USBD_NORMAL_COMPLETION; 2317 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun SHORT_XFER\n", 2318 USBDEVNAME(sc->sc_dev))); 2319 break; 2320 2321 default: 2322 printf("%s: Get Max Lun failed: %s\n", 2323 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 2324 /* XXX Should we port_reset the device? */ 2325 break; 2326 } 2327 2328 return (err); 2329 } 2330 2331 2332 2333 #if defined(__FreeBSD__) 2334 /* 2335 * CAM specific functions (used by SCSI, UFI, 8070) 2336 */ 2337 2338 Static int 2339 umass_cam_attach_sim(void) 2340 { 2341 struct cam_devq *devq; /* Per device Queue */ 2342 2343 /* A HBA is attached to the CAM layer. 2344 * 2345 * The CAM layer will then after a while start probing for 2346 * devices on the bus. The number of devices is limitted to one. 2347 */ 2348 2349 /* SCSI transparent command set */ 2350 2351 devq = cam_simq_alloc(1 /*maximum openings*/); 2352 if (devq == NULL) 2353 return(ENOMEM); 2354 2355 umass_sim = cam_sim_alloc(umass_cam_action, umass_cam_poll, DEVNAME, 2356 NULL /*priv*/, 0 /*unit number*/, 2357 1 /*maximum device openings*/, 2358 0 /*maximum tagged device openings*/, 2359 devq); 2360 if (umass_sim == NULL) { 2361 cam_simq_free(devq); 2362 return(ENOMEM); 2363 } 2364 2365 if(xpt_bus_register(umass_sim, 0) != CAM_SUCCESS) 2366 return(ENOMEM); 2367 2368 if (xpt_create_path(&umass_path, NULL, cam_sim_path(umass_sim), 2369 UMASS_SCSIID_HOST, 0) 2370 != CAM_REQ_CMP) 2371 return(ENOMEM); 2372 2373 return(0); 2374 } 2375 2376 #ifdef UMASS_DO_CAM_RESCAN 2377 /* this function is only used from umass_cam_rescan, so mention 2378 * prototype down here. 2379 */ 2380 Static void umass_cam_rescan_callback(struct cam_periph *periph,union ccb *ccb); 2381 2382 Static void 2383 umass_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2384 { 2385 #ifdef UMASS_DEBUG 2386 struct umass_softc *sc = devclass_get_softc(umass_devclass, 2387 ccb->ccb_h.target_id); 2388 2389 if (ccb->ccb_h.status != CAM_REQ_CMP) { 2390 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d: Rescan failed, 0x%04x\n", 2391 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2392 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2393 ccb->ccb_h.status)); 2394 } else { 2395 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d: Rescan succeeded, freeing resources.\n", 2396 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2397 ccb->ccb_h.target_id, ccb->ccb_h.target_lun)); 2398 } 2399 #endif 2400 2401 xpt_free_path(ccb->ccb_h.path); 2402 free(ccb, M_USBDEV); 2403 } 2404 2405 Static void 2406 umass_cam_rescan(struct umass_softc *sc) 2407 { 2408 struct cam_path *path; 2409 union ccb *ccb = malloc(sizeof(union ccb), M_USBDEV, M_WAITOK); 2410 2411 memset(ccb, 0, sizeof(union ccb)); 2412 2413 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d: scanning bus for new device %d\n", 2414 USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim), 2415 device_get_unit(sc->sc_dev), 0, 2416 device_get_unit(sc->sc_dev))); 2417 2418 if (xpt_create_path(&path, xpt_periph, cam_sim_path(umass_sim), 2419 device_get_unit(sc->sc_dev), 0) 2420 != CAM_REQ_CMP) 2421 return; 2422 2423 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2424 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2425 ccb->ccb_h.cbfcnp = umass_cam_rescan_callback; 2426 ccb->crcn.flags = CAM_FLAG_NONE; 2427 xpt_action(ccb); 2428 2429 /* The scan is in progress now. */ 2430 } 2431 #endif 2432 2433 Static int 2434 umass_cam_attach(struct umass_softc *sc) 2435 { 2436 /* SIM already attached at module load. The device is a target on the 2437 * one SIM we registered: target device_get_unit(self). 2438 */ 2439 2440 /* The artificial limit UMASS_SCSIID_MAX is there because CAM expects 2441 * a limit to the number of targets that are present on a SIM. 2442 */ 2443 if (device_get_unit(sc->sc_dev) > UMASS_SCSIID_MAX) { 2444 printf("%s: Increase UMASS_SCSIID_MAX (currently %d) in %s " 2445 "and try again.\n", USBDEVNAME(sc->sc_dev), 2446 UMASS_SCSIID_MAX, __FILE__); 2447 return(1); 2448 } 2449 2450 #ifdef UMASS_DO_CAM_RESCAN 2451 if (!cold) { 2452 /* Notify CAM of the new device. Any failure is benign, as the 2453 * user can still do it by hand (camcontrol rescan <busno>). 2454 * Only do this if we are not booting, because CAM does a scan 2455 * after booting has completed, when interrupts have been 2456 * enabled. 2457 */ 2458 umass_cam_rescan(sc); 2459 } 2460 #endif 2461 2462 return(0); /* always succesful */ 2463 } 2464 2465 /* umass_cam_detach 2466 * detach from the CAM layer 2467 */ 2468 2469 Static int 2470 umass_cam_detach_sim(void) 2471 { 2472 if (umass_sim) 2473 return(EBUSY); /* XXX CAM can't handle disappearing SIMs yet */ 2474 2475 if (umass_path) { 2476 /* XXX do we need to send an asynchroneous event for the SIM? 2477 xpt_async(AC_LOST_DEVICE, umass_path, NULL); 2478 */ 2479 xpt_free_path(umass_path); 2480 umass_path = NULL; 2481 } 2482 2483 if (umass_sim) { 2484 if (xpt_bus_deregister(cam_sim_path(umass_sim))) 2485 cam_sim_free(umass_sim, /*free_devq*/TRUE); 2486 else 2487 return(EBUSY); 2488 2489 umass_sim = NULL; 2490 } 2491 2492 return(0); 2493 } 2494 2495 Static int 2496 umass_cam_detach(struct umass_softc *sc) 2497 { 2498 struct cam_path *path; 2499 2500 /* detach of sim not done until module unload */ 2501 DPRINTF(UDMASS_SCSI, ("%s: losing CAM device entry\n", 2502 USBDEVNAME(sc->sc_dev))); 2503 2504 if (xpt_create_path(&path, NULL, cam_sim_path(umass_sim), 2505 device_get_unit(sc->sc_dev), CAM_LUN_WILDCARD) 2506 != CAM_REQ_CMP) 2507 return(ENOMEM); 2508 xpt_async(AC_LOST_DEVICE, path, NULL); 2509 xpt_free_path(path); 2510 2511 return(0); 2512 } 2513 2514 2515 2516 /* umass_cam_action 2517 * CAM requests for action come through here 2518 */ 2519 2520 Static void 2521 umass_cam_action(struct cam_sim *sim, union ccb *ccb) 2522 { 2523 struct umass_softc *sc = devclass_get_softc(umass_devclass, 2524 ccb->ccb_h.target_id); 2525 2526 /* The softc is still there, but marked as going away. umass_cam_detach 2527 * has not yet notified CAM of the lost device however. 2528 */ 2529 if (sc && sc->sc_dying) { 2530 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:func_code 0x%04x: " 2531 "Invalid target (gone)\n", 2532 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2533 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2534 ccb->ccb_h.func_code)); 2535 ccb->ccb_h.status = CAM_TID_INVALID; 2536 xpt_done(ccb); 2537 return; 2538 } 2539 2540 /* Verify, depending on the operation to perform, that we either got a 2541 * valid sc, because an existing target was referenced, or otherwise 2542 * the SIM is addressed. 2543 * 2544 * This avoids bombing out at a printf and does give the CAM layer some 2545 * sensible feedback on errors. 2546 */ 2547 switch (ccb->ccb_h.func_code) { 2548 case XPT_SCSI_IO: 2549 case XPT_RESET_DEV: 2550 case XPT_GET_TRAN_SETTINGS: 2551 case XPT_SET_TRAN_SETTINGS: 2552 case XPT_CALC_GEOMETRY: 2553 /* the opcodes requiring a target. These should never occur. */ 2554 if (sc == NULL) { 2555 printf("%s:%d:%d:%d:func_code 0x%04x: " 2556 "Invalid target\n", 2557 DEVNAME_SIM, UMASS_SCSI_BUS, 2558 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2559 ccb->ccb_h.func_code); 2560 2561 ccb->ccb_h.status = CAM_TID_INVALID; 2562 xpt_done(ccb); 2563 return; 2564 } 2565 break; 2566 case XPT_PATH_INQ: 2567 case XPT_NOOP: 2568 /* The opcodes sometimes aimed at a target (sc is valid), 2569 * sometimes aimed at the SIM (sc is invalid and target is 2570 * CAM_TARGET_WILDCARD) 2571 */ 2572 if (sc == NULL && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2573 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:func_code 0x%04x: " 2574 "Invalid target\n", 2575 DEVNAME_SIM, UMASS_SCSI_BUS, 2576 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2577 ccb->ccb_h.func_code)); 2578 2579 ccb->ccb_h.status = CAM_TID_INVALID; 2580 xpt_done(ccb); 2581 return; 2582 } 2583 break; 2584 default: 2585 /* XXX Hm, we should check the input parameters */ 2586 } 2587 2588 /* Perform the requested action */ 2589 switch (ccb->ccb_h.func_code) { 2590 case XPT_SCSI_IO: 2591 { 2592 struct ccb_scsiio *csio = &ccb->csio; /* deref union */ 2593 int dir; 2594 unsigned char *cmd; 2595 int cmdlen; 2596 2597 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_SCSI_IO: " 2598 "cmd: 0x%02x, flags: 0x%02x, " 2599 "%db cmd/%db data/%db sense\n", 2600 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2601 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2602 csio->cdb_io.cdb_bytes[0], 2603 ccb->ccb_h.flags & CAM_DIR_MASK, 2604 csio->cdb_len, csio->dxfer_len, 2605 csio->sense_len)); 2606 2607 /* clear the end of the buffer to make sure we don't send out 2608 * garbage. 2609 */ 2610 DIF(UDMASS_SCSI, if ((ccb->ccb_h.flags & CAM_DIR_MASK) 2611 == CAM_DIR_OUT) 2612 umass_dump_buffer(sc, csio->data_ptr, 2613 csio->dxfer_len, 48)); 2614 2615 if (sc->transfer_state != TSTATE_IDLE) { 2616 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_SCSI_IO: " 2617 "I/O requested while busy (state %d, %s)\n", 2618 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2619 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2620 sc->transfer_state,states[sc->transfer_state])); 2621 ccb->ccb_h.status = CAM_SCSI_BUSY; 2622 xpt_done(ccb); 2623 return; 2624 } 2625 2626 switch(ccb->ccb_h.flags&CAM_DIR_MASK) { 2627 case CAM_DIR_IN: 2628 dir = DIR_IN; 2629 break; 2630 case CAM_DIR_OUT: 2631 dir = DIR_OUT; 2632 break; 2633 default: 2634 dir = DIR_NONE; 2635 } 2636 2637 ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED; 2638 if (sc->transform(sc, csio->cdb_io.cdb_bytes, csio->cdb_len, 2639 &cmd, &cmdlen)) { 2640 sc->transfer(sc, ccb->ccb_h.target_lun, cmd, cmdlen, 2641 csio->data_ptr, 2642 csio->dxfer_len, dir, 2643 umass_cam_cb, (void *) ccb); 2644 } else { 2645 ccb->ccb_h.status = CAM_REQ_INVALID; 2646 xpt_done(ccb); 2647 } 2648 2649 break; 2650 } 2651 case XPT_PATH_INQ: 2652 { 2653 struct ccb_pathinq *cpi = &ccb->cpi; 2654 2655 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_PATH_INQ:.\n", 2656 (sc == NULL? DEVNAME_SIM:USBDEVNAME(sc->sc_dev)), 2657 UMASS_SCSI_BUS, 2658 ccb->ccb_h.target_id, ccb->ccb_h.target_lun)); 2659 2660 /* host specific information */ 2661 cpi->version_num = 1; 2662 cpi->hba_inquiry = 0; 2663 cpi->target_sprt = 0; 2664 cpi->hba_misc = 0; 2665 cpi->hba_eng_cnt = 0; 2666 cpi->max_target = UMASS_SCSIID_MAX; /* one target */ 2667 cpi->max_lun = 0; /* no LUN's supported */ 2668 cpi->initiator_id = UMASS_SCSIID_HOST; 2669 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2670 strncpy(cpi->hba_vid, "USB SCSI", HBA_IDLEN); 2671 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2672 cpi->unit_number = cam_sim_unit(sim); 2673 cpi->bus_id = UMASS_SCSI_BUS; 2674 if (sc) { 2675 cpi->base_transfer_speed = sc->transfer_speed; 2676 cpi->max_lun = sc->maxlun; 2677 } 2678 2679 cpi->ccb_h.status = CAM_REQ_CMP; 2680 xpt_done(ccb); 2681 break; 2682 } 2683 case XPT_RESET_DEV: 2684 { 2685 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_RESET_DEV:.\n", 2686 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2687 ccb->ccb_h.target_id, ccb->ccb_h.target_lun)); 2688 2689 ccb->ccb_h.status = CAM_REQ_INPROG; 2690 umass_reset(sc, umass_cam_cb, (void *) ccb); 2691 break; 2692 } 2693 case XPT_GET_TRAN_SETTINGS: 2694 { 2695 struct ccb_trans_settings *cts = &ccb->cts; 2696 2697 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_GET_TRAN_SETTINGS:.\n", 2698 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2699 ccb->ccb_h.target_id, ccb->ccb_h.target_lun)); 2700 2701 cts->valid = 0; 2702 cts->flags = 0; /* no disconnection, tagging */ 2703 2704 ccb->ccb_h.status = CAM_REQ_CMP; 2705 xpt_done(ccb); 2706 break; 2707 } 2708 case XPT_SET_TRAN_SETTINGS: 2709 { 2710 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_SET_TRAN_SETTINGS:.\n", 2711 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2712 ccb->ccb_h.target_id, ccb->ccb_h.target_lun)); 2713 2714 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 2715 xpt_done(ccb); 2716 break; 2717 } 2718 case XPT_CALC_GEOMETRY: 2719 { 2720 struct ccb_calc_geometry *ccg = &ccb->ccg; 2721 2722 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_CALC_GEOMETRY: " 2723 "Volume size = %d\n", 2724 USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 2725 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2726 ccg->volume_size)); 2727 2728 /* XXX We should probably ask the drive for the details 2729 * instead of cluching them up ourselves 2730 */ 2731 if (sc->drive == ZIP_100) { 2732 ccg->heads = 64; 2733 ccg->secs_per_track = 32; 2734 ccg->cylinders = ccg->volume_size / ccg->heads 2735 / ccg->secs_per_track; 2736 ccb->ccb_h.status = CAM_REQ_CMP; 2737 break; 2738 } else if (sc->proto & PROTO_UFI) { 2739 ccg->heads = 2; 2740 if (ccg->volume_size == 2880) 2741 ccg->secs_per_track = 18; 2742 else 2743 ccg->secs_per_track = 9; 2744 ccg->cylinders = 80; 2745 break; 2746 } else { 2747 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2748 } 2749 2750 xpt_done(ccb); 2751 break; 2752 } 2753 case XPT_NOOP: 2754 { 2755 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_NOOP:.\n", 2756 (sc == NULL? DEVNAME_SIM:USBDEVNAME(sc->sc_dev)), 2757 UMASS_SCSI_BUS, 2758 ccb->ccb_h.target_id, ccb->ccb_h.target_lun)); 2759 2760 ccb->ccb_h.status = CAM_REQ_CMP; 2761 xpt_done(ccb); 2762 break; 2763 } 2764 default: 2765 DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:func_code 0x%04x: " 2766 "Not implemented\n", 2767 (sc == NULL? DEVNAME_SIM:USBDEVNAME(sc->sc_dev)), 2768 UMASS_SCSI_BUS, 2769 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2770 ccb->ccb_h.func_code)); 2771 2772 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 2773 xpt_done(ccb); 2774 break; 2775 } 2776 } 2777 2778 /* umass_cam_poll 2779 * all requests are handled through umass_cam_action, requests 2780 * are never pending. So, nothing to do here. 2781 */ 2782 Static void 2783 umass_cam_poll(struct cam_sim *sim) 2784 { 2785 #ifdef UMASS_DEBUG 2786 struct umass_softc *sc = (struct umass_softc *) sim->softc; 2787 2788 DPRINTF(UDMASS_SCSI, ("%s: CAM poll\n", 2789 USBDEVNAME(sc->sc_dev))); 2790 #endif 2791 2792 /* nop */ 2793 } 2794 2795 2796 /* umass_cam_cb 2797 * finalise a completed CAM command 2798 */ 2799 2800 Static void 2801 umass_cam_cb(struct umass_softc *sc, void *priv, int residue, int status) 2802 { 2803 union ccb *ccb = (union ccb *) priv; 2804 struct ccb_scsiio *csio = &ccb->csio; /* deref union */ 2805 2806 csio->resid = residue; 2807 2808 switch (status) { 2809 case STATUS_CMD_OK: 2810 ccb->ccb_h.status = CAM_REQ_CMP; 2811 xpt_done(ccb); 2812 break; 2813 2814 case STATUS_CMD_UNKNOWN: 2815 case STATUS_CMD_FAILED: 2816 switch (ccb->ccb_h.func_code) { 2817 case XPT_SCSI_IO: 2818 { 2819 unsigned char *cmd; 2820 int cmdlen; 2821 2822 /* fetch sense data */ 2823 DPRINTF(UDMASS_SCSI,("%s: Fetching %db sense data\n", 2824 USBDEVNAME(sc->sc_dev), 2825 sc->cam_scsi_sense.length)); 2826 2827 sc->cam_scsi_sense.length = csio->sense_len; 2828 2829 if (sc->transform(sc, (char *) &sc->cam_scsi_sense, 2830 sizeof(sc->cam_scsi_sense), 2831 &cmd, &cmdlen)) { 2832 sc->transfer(sc, ccb->ccb_h.target_lun, 2833 cmd, cmdlen, 2834 &csio->sense_data, 2835 csio->sense_len, DIR_IN, 2836 umass_cam_sense_cb, (void *) ccb); 2837 } else { 2838 #ifdef UMASS_DEBUG 2839 panic("transform(REQUEST_SENSE) failed\n"); 2840 #else 2841 csio->resid = sc->transfer_datalen; 2842 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2843 xpt_done(ccb); 2844 #endif 2845 } 2846 break; 2847 } 2848 case XPT_RESET_DEV: /* Reset failed */ 2849 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2850 xpt_done(ccb); 2851 break; 2852 default: 2853 panic("umass_cam_cb called for func_code %d\n", 2854 ccb->ccb_h.func_code); 2855 } 2856 break; 2857 2858 case STATUS_WIRE_FAILED: 2859 /* the wire protocol failed and will have recovered 2860 * (hopefully). We return an error to CAM and let CAM retry 2861 * the command if necessary. 2862 */ 2863 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2864 xpt_done(ccb); 2865 break; 2866 2867 default: 2868 panic("%s: Unknown status %d in umass_cam_cb\n", 2869 USBDEVNAME(sc->sc_dev), status); 2870 } 2871 } 2872 2873 /* Finalise a completed autosense operation 2874 */ 2875 Static void 2876 umass_cam_sense_cb(struct umass_softc *sc, void *priv, int residue, int status) 2877 { 2878 union ccb *ccb = (union ccb *) priv; 2879 struct ccb_scsiio *csio = &ccb->csio; /* deref union */ 2880 2881 switch (status) { 2882 case STATUS_CMD_OK: 2883 case STATUS_CMD_UNKNOWN: 2884 /* Getting sense data succeeded. The length of the sense data 2885 * is not returned in any way. The sense data itself contains 2886 * the length of the sense data that is valid. 2887 */ 2888 if (sc->quirks & RS_NO_CLEAR_UA 2889 && csio->cdb_io.cdb_bytes[0] == INQUIRY 2890 && (csio->sense_data.flags & SSD_KEY) 2891 == SSD_KEY_UNIT_ATTENTION) { 2892 /* Ignore unit attention errors in the case where 2893 * the Unit Attention state is not cleared on 2894 * REQUEST SENSE. They will appear again at the next 2895 * command. 2896 */ 2897 ccb->ccb_h.status = CAM_REQ_CMP; 2898 } else if ((csio->sense_data.flags & SSD_KEY) 2899 == SSD_KEY_NO_SENSE) { 2900 /* No problem after all (in the case of CBI without 2901 * CCI) 2902 */ 2903 ccb->ccb_h.status = CAM_REQ_CMP; 2904 } else { 2905 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 2906 | CAM_AUTOSNS_VALID; 2907 csio->scsi_status = SCSI_STATUS_CHECK_COND; 2908 } 2909 xpt_done(ccb); 2910 break; 2911 2912 default: 2913 DPRINTF(UDMASS_SCSI, ("%s: Autosense failed, status %d\n", 2914 USBDEVNAME(sc->sc_dev), status)); 2915 ccb->ccb_h.status = CAM_AUTOSENSE_FAIL; 2916 xpt_done(ccb); 2917 } 2918 } 2919 2920 2921 Static int 2922 umass_driver_load(module_t mod, int what, void *arg) 2923 { 2924 int err; 2925 2926 switch (what) { 2927 case MOD_UNLOAD: 2928 err = umass_cam_detach_sim(); 2929 if (err) 2930 return(err); 2931 return(usbd_driver_load(mod, what, arg)); 2932 case MOD_LOAD: 2933 /* We don't attach to CAM at this point, because it will try 2934 * and malloc memory for it. This is not possible when the 2935 * boot loader loads umass as a module before the kernel 2936 * has been bootstrapped. 2937 */ 2938 default: 2939 return(usbd_driver_load(mod, what, arg)); 2940 } 2941 } 2942 2943 2944 2945 /* (even the comment is missing) */ 2946 2947 DRIVER_MODULE(umass, uhub, umass_driver, umass_devclass, umass_driver_load, 0); 2948 2949 2950 /* 2951 * SCSI specific functions 2952 */ 2953 2954 Static int 2955 umass_scsi_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen, 2956 unsigned char **rcmd, int *rcmdlen) 2957 { 2958 *rcmd = cmd; /* trivial copy */ 2959 *rcmdlen = cmdlen; 2960 2961 switch (cmd[0]) { 2962 case TEST_UNIT_READY: 2963 if (sc->quirks & NO_TEST_UNIT_READY) { 2964 DPRINTF(UDMASS_SCSI, ("%s: Converted TEST_UNIT_READY " 2965 "to START_UNIT\n", USBDEVNAME(sc->sc_dev))); 2966 cmd[0] = START_STOP_UNIT; 2967 cmd[4] = SSS_START; 2968 } 2969 break; 2970 } 2971 2972 return 1; /* success */ 2973 } 2974 2975 /* 2976 * UFI specific functions 2977 */ 2978 2979 Static int 2980 umass_ufi_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen, 2981 unsigned char **rcmd, int *rcmdlen) 2982 { 2983 *rcmd = cmd; 2984 /* A UFI command is always 12 bytes in length */ 2985 /* XXX cmd[(cmdlen+1)..12] contains garbage */ 2986 *rcmdlen = 12; 2987 2988 switch (cmd[0]) { 2989 case TEST_UNIT_READY: 2990 if (sc->quirks & NO_TEST_UNIT_READY) { 2991 DPRINTF(UDMASS_UFI, ("%s: Converted TEST_UNIT_READY " 2992 "to START_UNIT\n", USBDEVNAME(sc->sc_dev))); 2993 cmd[0] = START_STOP_UNIT; 2994 cmd[4] = SSS_START; 2995 } 2996 return 1; 2997 case INQUIRY: 2998 case START_STOP_UNIT: 2999 case MODE_SENSE: 3000 case PREVENT_ALLOW: 3001 case READ_10: 3002 case READ_12: 3003 case READ_CAPACITY: 3004 case REQUEST_SENSE: 3005 case REZERO_UNIT: 3006 case POSITION_TO_ELEMENT: /* SEEK_10 */ 3007 case SEND_DIAGNOSTIC: 3008 case WRITE_10: 3009 case WRITE_12: 3010 /* FORMAT_UNIT */ 3011 /* MODE_SELECT */ 3012 /* READ_FORMAT_CAPACITY */ 3013 /* VERIFY */ 3014 /* WRITE_AND_VERIFY */ 3015 return 1; /* success */ 3016 default: 3017 return 0; /* success */ 3018 } 3019 } 3020 3021 /* 3022 * 8070 specific functions 3023 */ 3024 Static int 3025 umass_8070_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen, 3026 unsigned char **rcmd, int *rcmdlen) 3027 { 3028 return 0; /* failure */ 3029 } 3030 3031 #endif /* __FreeBSD__ */ 3032 3033 3034 #ifdef UMASS_DEBUG 3035 Static void 3036 umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw) 3037 { 3038 int clen = cbw->bCDBLength; 3039 int dlen = UGETDW(cbw->dCBWDataTransferLength); 3040 u_int8_t *c = cbw->CBWCDB; 3041 int tag = UGETDW(cbw->dCBWTag); 3042 int flags = cbw->bCBWFlags; 3043 3044 DPRINTF(UDMASS_BBB, ("%s: CBW %d: cmd = %db " 3045 "(0x%02x%02x%02x%02x%02x%02x%s), " 3046 "data = %d bytes, dir = %s\n", 3047 USBDEVNAME(sc->sc_dev), tag, clen, 3048 c[0], c[1], c[2], c[3], c[4], c[5], (clen > 6? "...":""), 3049 dlen, (flags == CBWFLAGS_IN? "in": 3050 (flags == CBWFLAGS_OUT? "out":"<invalid>")))); 3051 } 3052 3053 Static void 3054 umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw) 3055 { 3056 int sig = UGETDW(csw->dCSWSignature); 3057 int tag = UGETW(csw->dCSWTag); 3058 int res = UGETDW(csw->dCSWDataResidue); 3059 int status = csw->bCSWStatus; 3060 3061 DPRINTF(UDMASS_BBB, ("%s: CSW %d: sig = 0x%08x (%s), tag = %d, " 3062 "res = %d, status = 0x%02x (%s)\n", USBDEVNAME(sc->sc_dev), 3063 tag, sig, (sig == CSWSIGNATURE? "valid":"invalid"), 3064 tag, res, 3065 status, (status == CSWSTATUS_GOOD? "good": 3066 (status == CSWSTATUS_FAILED? "failed": 3067 (status == CSWSTATUS_PHASE? "phase":"<invalid>"))))); 3068 } 3069 3070 Static void 3071 umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, int buflen, 3072 int printlen) 3073 { 3074 int i, j; 3075 char s1[40]; 3076 char s2[40]; 3077 char s3[5]; 3078 3079 s1[0] = '\0'; 3080 s3[0] = '\0'; 3081 3082 sprintf(s2, " buffer=%p, buflen=%d", buffer, buflen); 3083 for (i = 0; i < buflen && i < printlen; i++) { 3084 j = i % 16; 3085 if (j == 0 && i != 0) { 3086 DPRINTF(UDMASS_GEN, ("%s: 0x %s%s\n", 3087 USBDEVNAME(sc->sc_dev), s1, s2)); 3088 s2[0] = '\0'; 3089 } 3090 sprintf(&s1[j*2], "%02x", buffer[i] & 0xff); 3091 } 3092 if (buflen > printlen) 3093 sprintf(s3, " ..."); 3094 DPRINTF(UDMASS_GEN, ("%s: 0x %s%s%s\n", 3095 USBDEVNAME(sc->sc_dev), s1, s2, s3)); 3096 } 3097 #endif 3098 3099 3100 3101 3102 3103 3104 3105 3106 #if defined(__NetBSD__) || defined(__OpenBSD__) 3107 Static int 3108 umass_scsipi_cmd(struct scsipi_xfer *xs) 3109 { 3110 struct scsipi_link *sc_link = xs->sc_link; 3111 struct umass_softc *sc = sc_link->adapter_softc; 3112 struct scsipi_generic *cmd, trcmd; 3113 int cmdlen; 3114 int dir; 3115 #ifdef UMASS_DEBUG 3116 microtime(&sc->tv); 3117 #endif 3118 3119 DIF(UDMASS_UPPER, sc_link->flags |= DEBUGLEVEL); 3120 3121 DPRINTF(UDMASS_CMD, ("%s: umass_scsi_cmd: at %lu.%06lu: %d:%d " 3122 "xs=%p cmd=0x%02x datalen=%d (quirks=0x%x, poll=%d)\n", 3123 USBDEVNAME(sc->sc_dev), sc->tv.tv_sec, sc->tv.tv_usec, 3124 sc_link->scsipi_scsi.target, sc_link->scsipi_scsi.lun, 3125 xs, xs->cmd->opcode, xs->datalen, 3126 sc_link->quirks, xs->xs_control & XS_CTL_POLL)); 3127 #if defined(USB_DEBUG) && defined(SCSIDEBUG) 3128 if (umassdebug & UDMASS_SCSI) 3129 show_scsipi_xs(xs); 3130 else if (umassdebug & ~UDMASS_CMD) 3131 show_scsipi_cmd(xs); 3132 #endif 3133 3134 if (sc->sc_dying) { 3135 xs->error = XS_DRIVER_STUFFUP; 3136 goto done; 3137 } 3138 3139 #ifdef UMASS_DEBUG 3140 if ((sc_link->type == BUS_ATAPI ? 3141 sc_link->scsipi_atapi.drive : sc_link->scsipi_scsi.target) 3142 != UMASS_SCSIID_DEVICE) { 3143 DPRINTF(UDMASS_SCSI, ("%s: wrong SCSI ID %d\n", 3144 USBDEVNAME(sc->sc_dev), 3145 sc_link->scsipi_scsi.target)); 3146 xs->error = XS_DRIVER_STUFFUP; 3147 goto done; 3148 } 3149 #endif 3150 3151 if (xs->cmd->opcode == SCSI_MODE_SENSE && 3152 (sc_link->quirks & SDEV_NOMODESENSE)) { 3153 /*printf("%s: SCSI_MODE_SENSE\n", USBDEVNAME(sc->sc_dev));*/ 3154 xs->error = XS_TIMEOUT; 3155 goto done; 3156 } 3157 3158 if (xs->cmd->opcode == START_STOP && 3159 (sc->quirks & NO_START_STOP)) { 3160 /*printf("%s: START_STOP\n", USBDEVNAME(sc->sc_dev));*/ 3161 xs->error = XS_NOERROR; 3162 goto done; 3163 } 3164 3165 dir = DIR_NONE; 3166 if (xs->datalen) { 3167 switch (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 3168 case XS_CTL_DATA_IN: 3169 dir = DIR_IN; 3170 break; 3171 case XS_CTL_DATA_OUT: 3172 dir = DIR_OUT; 3173 break; 3174 } 3175 } 3176 3177 if (xs->datalen > UMASS_MAX_TRANSFER_SIZE) { 3178 printf("umass_cmd: large datalen, %d\n", xs->datalen); 3179 xs->error = XS_DRIVER_STUFFUP; 3180 goto done; 3181 } 3182 3183 cmd = xs->cmd; 3184 cmdlen = xs->cmdlen; 3185 if (sc->proto & PROTO_UFI) { 3186 if (!umass_ufi_transform(sc, cmd, cmdlen, &trcmd, &cmdlen)) { 3187 xs->error = XS_DRIVER_STUFFUP; 3188 goto done; 3189 } 3190 cmd = &trcmd; 3191 3192 } 3193 3194 if (xs->xs_control & XS_CTL_POLL) { 3195 /* Use sync transfer. XXX Broken! */ 3196 DPRINTF(UDMASS_SCSI, ("umass_scsi_cmd: sync dir=%d\n", dir)); 3197 sc->sc_xfer_flags = USBD_SYNCHRONOUS; 3198 sc->sc_sync_status = USBD_INVAL; 3199 sc->transfer(sc, sc_link->scsipi_scsi.lun, cmd, cmdlen, 3200 xs->data, xs->datalen, dir, 0, xs); 3201 sc->sc_xfer_flags = 0; 3202 DPRINTF(UDMASS_SCSI, ("umass_scsi_cmd: done err=%d\n", 3203 sc->sc_sync_status)); 3204 switch (sc->sc_sync_status) { 3205 case USBD_NORMAL_COMPLETION: 3206 xs->error = XS_NOERROR; 3207 break; 3208 case USBD_TIMEOUT: 3209 xs->error = XS_TIMEOUT; 3210 break; 3211 default: 3212 xs->error = XS_DRIVER_STUFFUP; 3213 break; 3214 } 3215 goto done; 3216 } else { 3217 DPRINTF(UDMASS_SCSI, ("umass_scsi_cmd: async dir=%d, cmdlen=%d" 3218 " datalen=%d\n", 3219 dir, cmdlen, xs->datalen)); 3220 sc->transfer(sc, sc_link->scsipi_scsi.lun, cmd, cmdlen, 3221 xs->data, xs->datalen, dir, umass_scsipi_cb, xs); 3222 return (SUCCESSFULLY_QUEUED); 3223 } 3224 3225 /* Return if command finishes early. */ 3226 done: 3227 xs->xs_status |= XS_STS_DONE; 3228 scsipi_done(xs); 3229 if (xs->xs_control & XS_CTL_POLL) 3230 return (COMPLETE); 3231 else 3232 return (SUCCESSFULLY_QUEUED); 3233 } 3234 3235 Static void 3236 umass_scsipi_minphys(struct buf *bp) 3237 { 3238 if (bp->b_bcount > UMASS_MAX_TRANSFER_SIZE) 3239 bp->b_bcount = UMASS_MAX_TRANSFER_SIZE; 3240 minphys(bp); 3241 } 3242 3243 int 3244 umass_scsipi_ioctl(struct scsipi_link *link, u_long cmd, caddr_t arg, 3245 int flag, struct proc *p) 3246 { 3247 /*struct umass_softc *sc = link->adapter_softc;*/ 3248 3249 switch (cmd) { 3250 #if 0 3251 case SCBUSIORESET: 3252 ccb->ccb_h.status = CAM_REQ_INPROG; 3253 umass_reset(sc, umass_cam_cb, (void *) ccb); 3254 return (0); 3255 #endif 3256 default: 3257 return (ENOTTY); 3258 } 3259 } 3260 3261 Static int 3262 umass_scsipi_getgeom(struct scsipi_link *sc_link, struct disk_parms *dp, 3263 u_long sectors) 3264 { 3265 struct umass_softc *sc = sc_link->adapter_softc; 3266 3267 /* If it's not a floppy, we don't know what to do. */ 3268 if (!(sc->proto & PROTO_UFI)) 3269 return (0); 3270 3271 switch (sectors) { 3272 case 1440: 3273 /* Most likely a single density 3.5" floppy. */ 3274 dp->heads = 2; 3275 dp->sectors = 9; 3276 dp->cyls = 80; 3277 return (1); 3278 case 2880: 3279 /* Most likely a double density 3.5" floppy. */ 3280 dp->heads = 2; 3281 dp->sectors = 18; 3282 dp->cyls = 80; 3283 return (1); 3284 default: 3285 return (0); 3286 } 3287 } 3288 3289 Static void 3290 umass_scsipi_cb(struct umass_softc *sc, void *priv, int residue, int status) 3291 { 3292 struct scsipi_xfer *xs = priv; 3293 struct scsipi_link *sc_link = xs->sc_link; 3294 int cmdlen; 3295 int s; 3296 #ifdef UMASS_DEBUG 3297 struct timeval tv; 3298 u_int delta; 3299 microtime(&tv); 3300 delta = (tv.tv_sec - sc->tv.tv_sec) * 1000000 + tv.tv_usec - sc->tv.tv_usec; 3301 #endif 3302 3303 DPRINTF(UDMASS_CMD,("umass_scsipi_cb: at %lu.%06lu, delta=%u: xs=%p residue=%d" 3304 " status=%d\n", tv.tv_sec, tv.tv_usec, delta, xs, residue, status)); 3305 3306 xs->resid = residue; 3307 3308 switch (status) { 3309 case STATUS_CMD_OK: 3310 xs->error = XS_NOERROR; 3311 break; 3312 3313 case STATUS_CMD_UNKNOWN: 3314 case STATUS_CMD_FAILED: 3315 /* fetch sense data */ 3316 memset(&sc->sc_sense_cmd, 0, sizeof(sc->sc_sense_cmd)); 3317 sc->sc_sense_cmd.opcode = REQUEST_SENSE; 3318 sc->sc_sense_cmd.byte2 = sc_link->scsipi_scsi.lun << 3319 SCSI_CMD_LUN_SHIFT; 3320 sc->sc_sense_cmd.length = sizeof(xs->sense); 3321 3322 cmdlen = sizeof(sc->sc_sense_cmd); 3323 if (sc->proto & PROTO_UFI) /* XXX */ 3324 cmdlen = UFI_COMMAND_LENGTH; 3325 sc->transfer(sc, sc_link->scsipi_scsi.lun, 3326 &sc->sc_sense_cmd, cmdlen, 3327 &xs->sense, sizeof(xs->sense), DIR_IN, 3328 umass_scsipi_sense_cb, xs); 3329 return; 3330 3331 case STATUS_WIRE_FAILED: 3332 xs->error = XS_RESET; 3333 break; 3334 3335 default: 3336 panic("%s: Unknown status %d in umass_scsipi_cb\n", 3337 USBDEVNAME(sc->sc_dev), status); 3338 } 3339 3340 xs->xs_status |= XS_STS_DONE; 3341 3342 DPRINTF(UDMASS_CMD,("umass_scsipi_cb: at %lu.%06lu: return xs->error=" 3343 "%d, xs->xs_status=0x%x xs->resid=%d\n", 3344 tv.tv_sec, tv.tv_usec, 3345 xs->error, xs->xs_status, xs->resid)); 3346 3347 s = splbio(); 3348 scsipi_done(xs); 3349 splx(s); 3350 } 3351 3352 /* 3353 * Finalise a completed autosense operation 3354 */ 3355 Static void 3356 umass_scsipi_sense_cb(struct umass_softc *sc, void *priv, int residue, 3357 int status) 3358 { 3359 struct scsipi_xfer *xs = priv; 3360 int s; 3361 3362 DPRINTF(UDMASS_CMD,("umass_scsipi_sense_cb: xs=%p residue=%d " 3363 "status=%d\n", xs, residue, status)); 3364 3365 switch (status) { 3366 case STATUS_CMD_OK: 3367 case STATUS_CMD_UNKNOWN: 3368 /* getting sense data succeeded */ 3369 if (xs->cmd->opcode == INQUIRY && (xs->resid < xs->datalen 3370 || ((sc->quirks & RS_NO_CLEAR_UA) /* XXX */) )) { 3371 /* 3372 * Some drivers return SENSE errors even after INQUIRY. 3373 * The upper layer doesn't like that. 3374 */ 3375 xs->error = XS_NOERROR; 3376 break; 3377 } 3378 /* XXX look at residue */ 3379 if (residue == 0 || residue == 14)/* XXX */ 3380 xs->error = XS_SENSE; 3381 else 3382 xs->error = XS_SHORTSENSE; 3383 break; 3384 default: 3385 DPRINTF(UDMASS_SCSI, ("%s: Autosense failed, status %d\n", 3386 USBDEVNAME(sc->sc_dev), status)); 3387 xs->error = XS_DRIVER_STUFFUP; 3388 break; 3389 } 3390 3391 xs->xs_status |= XS_STS_DONE; 3392 3393 DPRINTF(UDMASS_CMD,("umass_scsipi_sense_cb: return xs->error=%d, " 3394 "xs->xs_status=0x%x xs->resid=%d\n", xs->error, xs->xs_status, 3395 xs->resid)); 3396 3397 s = splbio(); 3398 scsipi_done(xs); 3399 splx(s); 3400 } 3401 3402 /* 3403 * UFI specific functions 3404 */ 3405 3406 Static int 3407 umass_ufi_transform(struct umass_softc *sc, struct scsipi_generic *cmd, 3408 int cmdlen, struct scsipi_generic *rcmd, int *rcmdlen) 3409 { 3410 *rcmdlen = UFI_COMMAND_LENGTH; 3411 memset(rcmd, 0, sizeof *rcmd); 3412 3413 /* Handle any quirks */ 3414 if (cmd->opcode == TEST_UNIT_READY 3415 && (sc->quirks & NO_TEST_UNIT_READY)) { 3416 /* 3417 * Some devices do not support this command. 3418 * Start Stop Unit should give the same results 3419 */ 3420 DPRINTF(UDMASS_UFI, ("%s: Converted TEST_UNIT_READY " 3421 "to START_UNIT\n", USBDEVNAME(sc->sc_dev))); 3422 cmd->opcode = START_STOP; 3423 cmd->bytes[3] = SSS_START; 3424 return 1; 3425 } 3426 3427 switch (cmd->opcode) { 3428 /* Commands of which the format has been verified. They should work. */ 3429 case TEST_UNIT_READY: 3430 case SCSI_REZERO_UNIT: 3431 case REQUEST_SENSE: 3432 case INQUIRY: 3433 case START_STOP: 3434 /*case SEND_DIAGNOSTIC: ??*/ 3435 case PREVENT_ALLOW: 3436 case READ_CAPACITY: 3437 case READ_BIG: 3438 case WRITE_BIG: 3439 case POSITION_TO_ELEMENT: /* SEEK_10 */ 3440 case SCSI_MODE_SELECT_BIG: 3441 case SCSI_MODE_SENSE_BIG: 3442 /* Copy the command into the (zeroed out) destination buffer */ 3443 memcpy(rcmd, cmd, cmdlen); 3444 return (1); /* success */ 3445 3446 /* 3447 * Other UFI commands: FORMAT_UNIT, MODE_SELECT, READ_FORMAT_CAPACITY, 3448 * VERIFY, WRITE_AND_VERIFY. 3449 * These should be checked whether they somehow can be made to fit. 3450 */ 3451 3452 /* These commands are known _not_ to work. They should be converted. */ 3453 case SCSI_READ_COMMAND: 3454 case SCSI_WRITE_COMMAND: 3455 case SCSI_MODE_SENSE: 3456 case SCSI_MODE_SELECT: 3457 default: 3458 printf("%s: Unsupported UFI command 0x%02x", 3459 USBDEVNAME(sc->sc_dev), cmd->opcode); 3460 if (cmdlen == 6) 3461 printf(", 6 byte command should have been converted"); 3462 printf("\n"); 3463 return (0); /* failure */ 3464 } 3465 } 3466 3467 #if NATAPIBUS > 0 3468 Static void 3469 umass_atapi_probedev(struct atapibus_softc *atapi, int target) 3470 { 3471 struct scsipi_link *sc_link; 3472 struct scsipibus_attach_args sa; 3473 struct ata_drive_datas *drvp = &atapi->sc_drvs[target]; 3474 char vendor[33], product[65], revision[17]; 3475 struct scsipi_inquiry_data inqbuf; 3476 3477 DPRINTF(UDMASS_SCSI,("umass_atapi_probedev: atapi=%p target=%d\n", 3478 atapi, target)); 3479 3480 if (target != 0) /* only probe drive 0 */ 3481 return; 3482 3483 if (atapi->sc_link[target]) 3484 return; 3485 3486 sc_link = malloc(sizeof(*sc_link), M_DEVBUF, M_NOWAIT); 3487 if (sc_link == NULL) { 3488 printf("%s: can't allocate link for drive %d\n", 3489 atapi->sc_dev.dv_xname, target); 3490 return; 3491 } 3492 *sc_link = *atapi->adapter_link; 3493 3494 DIF(UDMASS_UPPER, sc_link->flags |= DEBUGLEVEL); 3495 3496 /* Fill generic parts of the link. */ 3497 sc_link->active = 0; 3498 sc_link->scsipi_atapi.drive = target; 3499 sc_link->device = &umass_dev; 3500 TAILQ_INIT(&sc_link->pending_xfers); 3501 3502 DPRINTF(UDMASS_SCSI, ("umass_atapi_probedev: doing inquiry\n")); 3503 /* Now go ask the device all about itself. */ 3504 memset(&inqbuf, 0, sizeof(inqbuf)); 3505 if (scsipi_inquire(sc_link, &inqbuf, XS_CTL_DISCOVERY) != 0) 3506 goto bad; 3507 3508 scsipi_strvis(vendor, 33, inqbuf.vendor, 8); 3509 scsipi_strvis(product, 65, inqbuf.product, 16); 3510 scsipi_strvis(revision, 17, inqbuf.revision, 4); 3511 3512 sa.sa_sc_link = sc_link; 3513 sa.sa_inqbuf.type = inqbuf.device; 3514 sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ? 3515 T_REMOV : T_FIXED; 3516 if (sa.sa_inqbuf.removable) 3517 sc_link->flags |= SDEV_REMOVABLE; 3518 /* XXX how? sc_link->scsipi_atapi.cap |= ACAP_LEN;*/ 3519 sa.sa_inqbuf.vendor = vendor; 3520 sa.sa_inqbuf.product = product; 3521 sa.sa_inqbuf.revision = revision; 3522 sa.sa_inqptr = NULL; 3523 3524 drvp->drv_softc = atapi_probedev(atapi, target, sc_link, &sa); 3525 /* atapi_probedev() frees the scsipi_link when there is no device. */ 3526 return; 3527 3528 bad: 3529 free(sc_link, M_DEVBUF); 3530 return; 3531 } 3532 #endif 3533 #endif 3534
Indexes created Tue Sep 30 20:09:53 GMT 2025