sys/cam/scsi/scsi_cd.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 1997 Justin T. Gibbs.
   5  * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions, and the following disclaimer,
  13  *    without modification, immediately at the beginning of the file.
  14  * 2. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 /*-
  31  * Portions of this driver taken from the original FreeBSD cd driver.
  32  * Written by Julian Elischer (julian@tfs.com)
  33  * for TRW Financial Systems for use under the MACH(2.5) operating system.
  34  *
  35  * TRW Financial Systems, in accordance with their agreement with Carnegie
  36  * Mellon University, makes this software available to CMU to distribute
  37  * or use in any manner that they see fit as long as this message is kept with
  38  * the software. For this reason TFS also grants any other persons or
  39  * organisations permission to use or modify this software.
  40  *
  41  * TFS supplies this software to be publicly redistributed
  42  * on the understanding that TFS is not responsible for the correct
  43  * functioning of this software in any circumstances.
  44  *
  45  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
  46  *
  47  *      from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $
  48  */
  49
  50 #include <sys/cdefs.h>
  51 __FBSDID("$FreeBSD$");
  52
  53 #include "opt_cd.h"
  54
  55 #include <sys/param.h>
  56 #include <sys/systm.h>
  57 #include <sys/kernel.h>
  58 #include <sys/bio.h>
  59 #include <sys/conf.h>
  60 #include <sys/disk.h>
  61 #include <sys/malloc.h>
  62 #include <sys/cdio.h>
  63 #include <sys/cdrio.h>
  64 #include <sys/dvdio.h>
  65 #include <sys/devicestat.h>
  66 #include <sys/proc.h>
  67 #include <sys/sbuf.h>
  68 #include <sys/sysctl.h>
  69 #include <sys/taskqueue.h>
  70 #include <geom/geom_disk.h>
  71
  72 #include <cam/cam.h>
  73 #include <cam/cam_ccb.h>
  74 #include <cam/cam_periph.h>
  75 #include <cam/cam_xpt_periph.h>
  76 #include <cam/cam_queue.h>
  77 #include <cam/cam_sim.h>
  78
  79 #include <cam/scsi/scsi_message.h>
  80 #include <cam/scsi/scsi_da.h>
  81 #include <cam/scsi/scsi_cd.h>
  82
  83 #define LEADOUT         0xaa            /* leadout toc entry */
  84
  85 struct cd_params {
  86         u_int32_t blksize;
  87         u_long    disksize;
  88 };
  89
  90 typedef enum {
  91         CD_Q_NONE               = 0x00,
  92         CD_Q_NO_TOUCH           = 0x01,
  93         CD_Q_BCD_TRACKS         = 0x02,
  94         CD_Q_10_BYTE_ONLY       = 0x10,
  95         CD_Q_RETRY_BUSY         = 0x40
  96 } cd_quirks;
  97
  98 #define CD_Q_BIT_STRING         \
  99         "\020"                  \
 100         "\001NO_TOUCH"          \
 101         "\002BCD_TRACKS"        \
 102         "\00510_BYTE_ONLY"      \
 103         "\007RETRY_BUSY"
 104
 105 typedef enum {
 106         CD_FLAG_INVALID         = 0x0001,
 107         CD_FLAG_NEW_DISC        = 0x0002,
 108         CD_FLAG_DISC_LOCKED     = 0x0004,
 109         CD_FLAG_DISC_REMOVABLE  = 0x0008,
 110         CD_FLAG_SAW_MEDIA       = 0x0010,
 111         CD_FLAG_ACTIVE          = 0x0080,
 112         CD_FLAG_SCHED_ON_COMP   = 0x0100,
 113         CD_FLAG_RETRY_UA        = 0x0200,
 114         CD_FLAG_VALID_MEDIA     = 0x0400,
 115         CD_FLAG_VALID_TOC       = 0x0800,
 116         CD_FLAG_SCTX_INIT       = 0x1000,
 117         CD_FLAG_MEDIA_WAIT      = 0x2000,
 118         CD_FLAG_MEDIA_SCAN_ACT  = 0x4000
 119 } cd_flags;
 120
 121 typedef enum {
 122         CD_CCB_PROBE            = 0x01,
 123         CD_CCB_BUFFER_IO        = 0x02,
 124         CD_CCB_TUR              = 0x03,
 125         CD_CCB_MEDIA_PREVENT    = 0x04,
 126         CD_CCB_MEDIA_ALLOW      = 0x05,
 127         CD_CCB_MEDIA_SIZE       = 0x06,
 128         CD_CCB_MEDIA_TOC_HDR    = 0x07,
 129         CD_CCB_MEDIA_TOC_FULL   = 0x08,
 130         CD_CCB_MEDIA_TOC_LEAD   = 0x09,
 131         CD_CCB_TYPE_MASK        = 0x0F,
 132         CD_CCB_RETRY_UA         = 0x10
 133 } cd_ccb_state;
 134
 135 #define ccb_state ppriv_field0
 136 #define ccb_bp ppriv_ptr1
 137
 138 /*
 139  * According to the MMC-6 spec, 6.25.3.2.11, the lead-out is reported by
 140  * READ_TOC as logical track 170, so at most 169 tracks may be reported.
 141  */
 142 struct cd_tocdata {
 143         struct ioc_toc_header header;
 144         struct cd_toc_entry entries[170];
 145 };
 146
 147 struct cd_toc_single {
 148         struct ioc_toc_header header;
 149         struct cd_toc_entry entry;
 150 };
 151
 152 typedef enum {
 153         CD_STATE_PROBE,
 154         CD_STATE_NORMAL,
 155         CD_STATE_MEDIA_PREVENT,
 156         CD_STATE_MEDIA_ALLOW,
 157         CD_STATE_MEDIA_SIZE,
 158         CD_STATE_MEDIA_TOC_HDR,
 159         CD_STATE_MEDIA_TOC_FULL,
 160         CD_STATE_MEDIA_TOC_LEAD
 161 } cd_state;
 162
 163 struct cd_softc {
 164         cam_pinfo               pinfo;
 165         cd_state                state;
 166         volatile cd_flags       flags;
 167         struct bio_queue_head   bio_queue;
 168         LIST_HEAD(, ccb_hdr)    pending_ccbs;
 169         struct cd_params        params;
 170         cd_quirks               quirks;
 171         struct cam_periph       *periph;
 172         int                     minimum_command_size;
 173         int                     outstanding_cmds;
 174         int                     tur;
 175         struct task             sysctl_task;
 176         struct sysctl_ctx_list  sysctl_ctx;
 177         struct sysctl_oid       *sysctl_tree;
 178         STAILQ_HEAD(, cd_mode_params)   mode_queue;
 179         struct cd_tocdata       toc;
 180         int                     toc_read_len;
 181         struct cd_toc_single    leadout;
 182         struct disk             *disk;
 183         struct callout          mediapoll_c;
 184
 185 #define CD_ANNOUNCETMP_SZ 120
 186         char                    announce_temp[CD_ANNOUNCETMP_SZ];
 187 #define CD_ANNOUNCE_SZ 400
 188         char                    announce_buf[CD_ANNOUNCE_SZ];
 189 };
 190
 191 struct cd_page_sizes {
 192         int page;
 193         int page_size;
 194 };
 195
 196 static struct cd_page_sizes cd_page_size_table[] =
 197 {
 198         { AUDIO_PAGE, sizeof(struct cd_audio_page)}
 199 };
 200
 201 struct cd_quirk_entry {
 202         struct scsi_inquiry_pattern inq_pat;
 203         cd_quirks quirks;
 204 };
 205
 206 /*
 207  * NOTE ON 10_BYTE_ONLY quirks:  Any 10_BYTE_ONLY quirks MUST be because
 208  * your device hangs when it gets a 10 byte command.  Adding a quirk just
 209  * to get rid of the informative diagnostic message is not acceptable.  All
 210  * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be
 211  * referenced in a comment along with the quirk) , and must be approved by
 212  * ken@FreeBSD.org.  Any quirks added that don't adhere to this policy may
 213  * be removed until the submitter can explain why they are needed.
 214  * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary)
 215  * when the CAM_NEW_TRAN_CODE work is done.
 216  */
 217 static struct cd_quirk_entry cd_quirk_table[] =
 218 {
 219         {
 220                 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
 221                 /* quirks */ CD_Q_BCD_TRACKS
 222         },
 223         {
 224                 /*
 225                  * VMware returns BUSY status when storage has transient
 226                  * connectivity problems, so better wait.
 227                  */
 228                 {T_CDROM, SIP_MEDIA_REMOVABLE, "NECVMWar", "VMware IDE CDR10", "*"},
 229                 /*quirks*/ CD_Q_RETRY_BUSY
 230         }
 231 };
 232
 233 #ifdef COMPAT_FREEBSD32
 234 struct ioc_read_toc_entry32 {
 235         u_char  address_format;
 236         u_char  starting_track;
 237         u_short data_len;
 238         uint32_t data;  /* (struct cd_toc_entry *) */
 239 };
 240 #define CDIOREADTOCENTRYS_32    \
 241     _IOC_NEWTYPE(CDIOREADTOCENTRYS, struct ioc_read_toc_entry32)
 242 #endif
 243
 244 static  disk_open_t     cdopen;
 245 static  disk_close_t    cdclose;
 246 static  disk_ioctl_t    cdioctl;
 247 static  disk_strategy_t cdstrategy;
 248
 249 static  periph_init_t   cdinit;
 250 static  periph_ctor_t   cdregister;
 251 static  periph_dtor_t   cdcleanup;
 252 static  periph_start_t  cdstart;
 253 static  periph_oninv_t  cdoninvalidate;
 254 static  void            cdasync(void *callback_arg, u_int32_t code,
 255                                 struct cam_path *path, void *arg);
 256 static  int             cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
 257 static  int             cdrunccb(union ccb *ccb,
 258                                  int (*error_routine)(union ccb *ccb,
 259                                                       u_int32_t cam_flags,
 260                                                       u_int32_t sense_flags),
 261                                  u_int32_t cam_flags, u_int32_t sense_flags);
 262 static  void            cddone(struct cam_periph *periph,
 263                                union ccb *start_ccb);
 264 static  union cd_pages  *cdgetpage(struct cd_mode_params *mode_params);
 265 static  int             cdgetpagesize(int page_num);
 266 static  void            cdprevent(struct cam_periph *periph, int action);
 267 static  void            cdmediaprobedone(struct cam_periph *periph);
 268 static  int             cdcheckmedia(struct cam_periph *periph, int do_wait);
 269 #if 0
 270 static  int             cdsize(struct cam_periph *periph, u_int32_t *size);
 271 #endif
 272 static  int             cd6byteworkaround(union ccb *ccb);
 273 static  int             cderror(union ccb *ccb, u_int32_t cam_flags,
 274                                 u_int32_t sense_flags);
 275 static  int             cdreadtoc(struct cam_periph *periph, u_int32_t mode,
 276                                   u_int32_t start, u_int8_t *data,
 277                                   u_int32_t len, u_int32_t sense_flags);
 278 static  int             cdgetmode(struct cam_periph *periph,
 279                                   struct cd_mode_params *data, u_int32_t page);
 280 static  int             cdsetmode(struct cam_periph *periph,
 281                                   struct cd_mode_params *data);
 282 static  int             cdplay(struct cam_periph *periph, u_int32_t blk,
 283                                u_int32_t len);
 284 static  int             cdreadsubchannel(struct cam_periph *periph,
 285                                          u_int32_t mode, u_int32_t format,
 286                                          int track,
 287                                          struct cd_sub_channel_info *data,
 288                                          u_int32_t len);
 289 static  int             cdplaymsf(struct cam_periph *periph, u_int32_t startm,
 290                                   u_int32_t starts, u_int32_t startf,
 291                                   u_int32_t endm, u_int32_t ends,
 292                                   u_int32_t endf);
 293 static  int             cdplaytracks(struct cam_periph *periph,
 294                                      u_int32_t strack, u_int32_t sindex,
 295                                      u_int32_t etrack, u_int32_t eindex);
 296 static  int             cdpause(struct cam_periph *periph, u_int32_t go);
 297 static  int             cdstopunit(struct cam_periph *periph, u_int32_t eject);
 298 static  int             cdstartunit(struct cam_periph *periph, int load);
 299 static  int             cdsetspeed(struct cam_periph *periph,
 300                                    u_int32_t rdspeed, u_int32_t wrspeed);
 301 static  int             cdreportkey(struct cam_periph *periph,
 302                                     struct dvd_authinfo *authinfo);
 303 static  int             cdsendkey(struct cam_periph *periph,
 304                                   struct dvd_authinfo *authinfo);
 305 static  int             cdreaddvdstructure(struct cam_periph *periph,
 306                                            struct dvd_struct *dvdstruct);
 307 static  callout_func_t  cdmediapoll;
 308
 309 static struct periph_driver cddriver =
 310 {
 311         cdinit, "cd",
 312         TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
 313 };
 314
 315 PERIPHDRIVER_DECLARE(cd, cddriver);
 316
 317 #ifndef CD_DEFAULT_POLL_PERIOD
 318 #define CD_DEFAULT_POLL_PERIOD  3
 319 #endif
 320 #ifndef CD_DEFAULT_RETRY
 321 #define CD_DEFAULT_RETRY        4
 322 #endif
 323 #ifndef CD_DEFAULT_TIMEOUT
 324 #define CD_DEFAULT_TIMEOUT      30000
 325 #endif
 326
 327 static int cd_poll_period = CD_DEFAULT_POLL_PERIOD;
 328 static int cd_retry_count = CD_DEFAULT_RETRY;
 329 static int cd_timeout = CD_DEFAULT_TIMEOUT;
 330
 331 static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
 332     "CAM CDROM driver");
 333 SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RWTUN,
 334            &cd_poll_period, 0, "Media polling period in seconds");
 335 SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RWTUN,
 336            &cd_retry_count, 0, "Normal I/O retry count");
 337 SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RWTUN,
 338            &cd_timeout, 0, "Timeout, in us, for read operations");
 339
 340 static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers");
 341
 342 static void
 343 cdinit(void)
 344 {
 345         cam_status status;
 346
 347         /*
 348          * Install a global async callback.  This callback will
 349          * receive async callbacks like "new device found".
 350          */
 351         status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL);
 352
 353         if (status != CAM_REQ_CMP) {
 354                 printf("cd: Failed to attach master async callback "
 355                        "due to status 0x%x!\n", status);
 356         }
 357 }
 358
 359 /*
 360  * Callback from GEOM, called when it has finished cleaning up its
 361  * resources.
 362  */
 363 static void
 364 cddiskgonecb(struct disk *dp)
 365 {
 366         struct cam_periph *periph;
 367
 368         periph = (struct cam_periph *)dp->d_drv1;
 369         cam_periph_release(periph);
 370 }
 371
 372 static void
 373 cdoninvalidate(struct cam_periph *periph)
 374 {
 375         struct cd_softc *softc;
 376
 377         cam_periph_assert(periph, MA_OWNED);
 378         softc = (struct cd_softc *)periph->softc;
 379
 380         /*
 381          * De-register any async callbacks.
 382          */
 383         xpt_register_async(0, cdasync, periph, periph->path);
 384
 385         softc->flags |= CD_FLAG_INVALID;
 386
 387         /*
 388          * Return all queued I/O with ENXIO.
 389          * XXX Handle any transactions queued to the card
 390          *     with XPT_ABORT_CCB.
 391          */
 392         bioq_flush(&softc->bio_queue, NULL, ENXIO);
 393
 394         disk_gone(softc->disk);
 395 }
 396
 397 static void
 398 cdcleanup(struct cam_periph *periph)
 399 {
 400         struct cd_softc *softc;
 401
 402         softc = (struct cd_softc *)periph->softc;
 403
 404         cam_periph_unlock(periph);
 405         if ((softc->flags & CD_FLAG_SCTX_INIT) != 0
 406             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
 407                 xpt_print(periph->path, "can't remove sysctl context\n");
 408         }
 409
 410         callout_drain(&softc->mediapoll_c);
 411         disk_destroy(softc->disk);
 412         free(softc, M_DEVBUF);
 413         cam_periph_lock(periph);
 414 }
 415
 416 static void
 417 cdasync(void *callback_arg, u_int32_t code,
 418         struct cam_path *path, void *arg)
 419 {
 420         struct cam_periph *periph;
 421         struct cd_softc *softc;
 422
 423         periph = (struct cam_periph *)callback_arg;
 424         switch (code) {
 425         case AC_FOUND_DEVICE:
 426         {
 427                 struct ccb_getdev *cgd;
 428                 cam_status status;
 429
 430                 cgd = (struct ccb_getdev *)arg;
 431                 if (cgd == NULL)
 432                         break;
 433
 434                 if (cgd->protocol != PROTO_SCSI)
 435                         break;
 436                 if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
 437                         break;
 438                 if (SID_TYPE(&cgd->inq_data) != T_CDROM
 439                     && SID_TYPE(&cgd->inq_data) != T_WORM)
 440                         break;
 441
 442                 /*
 443                  * Allocate a peripheral instance for
 444                  * this device and start the probe
 445                  * process.
 446                  */
 447                 status = cam_periph_alloc(cdregister, cdoninvalidate,
 448                                           cdcleanup, cdstart,
 449                                           "cd", CAM_PERIPH_BIO,
 450                                           path, cdasync,
 451                                           AC_FOUND_DEVICE, cgd);
 452
 453                 if (status != CAM_REQ_CMP
 454                  && status != CAM_REQ_INPROG)
 455                         printf("cdasync: Unable to attach new device "
 456                                "due to status 0x%x\n", status);
 457
 458                 return;
 459         }
 460         case AC_UNIT_ATTENTION:
 461         {
 462                 union ccb *ccb;
 463                 int error_code, sense_key, asc, ascq;
 464
 465                 softc = (struct cd_softc *)periph->softc;
 466                 ccb = (union ccb *)arg;
 467
 468                 /*
 469                  * Handle all media change UNIT ATTENTIONs except
 470                  * our own, as they will be handled by cderror().
 471                  */
 472                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
 473                     scsi_extract_sense_ccb(ccb,
 474                      &error_code, &sense_key, &asc, &ascq)) {
 475                         if (asc == 0x28 && ascq == 0x00)
 476                                 disk_media_changed(softc->disk, M_NOWAIT);
 477                 }
 478                 break;
 479         }
 480         case AC_SCSI_AEN:
 481                 cam_periph_assert(periph, MA_OWNED);
 482                 softc = (struct cd_softc *)periph->softc;
 483                 if (softc->state == CD_STATE_NORMAL && !softc->tur) {
 484                         if (cam_periph_acquire(periph) == 0) {
 485                                 softc->tur = 1;
 486                                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
 487                         }
 488                 }
 489                 /* FALLTHROUGH */
 490         case AC_SENT_BDR:
 491         case AC_BUS_RESET:
 492         {
 493                 struct ccb_hdr *ccbh;
 494
 495                 cam_periph_assert(periph, MA_OWNED);
 496                 softc = (struct cd_softc *)periph->softc;
 497                 /*
 498                  * Don't fail on the expected unit attention
 499                  * that will occur.
 500                  */
 501                 softc->flags |= CD_FLAG_RETRY_UA;
 502                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
 503                         ccbh->ccb_state |= CD_CCB_RETRY_UA;
 504                 break;
 505         }
 506         default:
 507                 break;
 508         }
 509
 510         cam_periph_async(periph, code, path, arg);
 511 }
 512
 513 static void
 514 cdsysctlinit(void *context, int pending)
 515 {
 516         struct cam_periph *periph;
 517         struct cd_softc *softc;
 518         char tmpstr[32], tmpstr2[16];
 519
 520         periph = (struct cam_periph *)context;
 521         if (cam_periph_acquire(periph) != 0)
 522                 return;
 523
 524         softc = (struct cd_softc *)periph->softc;
 525         snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number);
 526         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
 527
 528         sysctl_ctx_init(&softc->sysctl_ctx);
 529         cam_periph_lock(periph);
 530         softc->flags |= CD_FLAG_SCTX_INIT;
 531         cam_periph_unlock(periph);
 532         softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
 533                 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
 534                 tmpstr2, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, tmpstr,
 535                 "device_index");
 536
 537         if (softc->sysctl_tree == NULL) {
 538                 printf("cdsysctlinit: unable to allocate sysctl tree\n");
 539                 cam_periph_release(periph);
 540                 return;
 541         }
 542
 543         /*
 544          * Now register the sysctl handler, so the user can the value on
 545          * the fly.
 546          */
 547         SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
 548                 OID_AUTO, "minimum_cmd_size",
 549                 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
 550                 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
 551                 "Minimum CDB size");
 552
 553         cam_periph_release(periph);
 554 }
 555
 556 /*
 557  * We have a handler function for this so we can check the values when the
 558  * user sets them, instead of every time we look at them.
 559  */
 560 static int
 561 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)
 562 {
 563         int error, value;
 564
 565         value = *(int *)arg1;
 566
 567         error = sysctl_handle_int(oidp, &value, 0, req);
 568
 569         if ((error != 0)
 570          || (req->newptr == NULL))
 571                 return (error);
 572
 573         /*
 574          * The only real values we can have here are 6 or 10.  I don't
 575          * really forsee having 12 be an option at any time in the future.
 576          * So if the user sets something less than or equal to 6, we'll set
 577          * it to 6.  If he sets something greater than 6, we'll set it to 10.
 578          *
 579          * I suppose we could just return an error here for the wrong values,
 580          * but I don't think it's necessary to do so, as long as we can
 581          * determine the user's intent without too much trouble.
 582          */
 583         if (value < 6)
 584                 value = 6;
 585         else if (value > 6)
 586                 value = 10;
 587
 588         *(int *)arg1 = value;
 589
 590         return (0);
 591 }
 592
 593 static cam_status
 594 cdregister(struct cam_periph *periph, void *arg)
 595 {
 596         struct cd_softc *softc;
 597         struct ccb_pathinq cpi;
 598         struct ccb_getdev *cgd;
 599         char tmpstr[80];
 600         caddr_t match;
 601
 602         cgd = (struct ccb_getdev *)arg;
 603         if (cgd == NULL) {
 604                 printf("cdregister: no getdev CCB, can't register device\n");
 605                 return(CAM_REQ_CMP_ERR);
 606         }
 607
 608         softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,
 609             M_NOWAIT | M_ZERO);
 610         if (softc == NULL) {
 611                 printf("cdregister: Unable to probe new device. "
 612                        "Unable to allocate softc\n");
 613                 return(CAM_REQ_CMP_ERR);
 614         }
 615
 616         LIST_INIT(&softc->pending_ccbs);
 617         STAILQ_INIT(&softc->mode_queue);
 618         softc->state = CD_STATE_PROBE;
 619         bioq_init(&softc->bio_queue);
 620         if (SID_IS_REMOVABLE(&cgd->inq_data))
 621                 softc->flags |= CD_FLAG_DISC_REMOVABLE;
 622
 623         periph->softc = softc;
 624         softc->periph = periph;
 625
 626         /*
 627          * See if this device has any quirks.
 628          */
 629         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
 630                                (caddr_t)cd_quirk_table,
 631                                nitems(cd_quirk_table),
 632                                sizeof(*cd_quirk_table), scsi_inquiry_match);
 633
 634         if (match != NULL)
 635                 softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
 636         else
 637                 softc->quirks = CD_Q_NONE;
 638
 639         /* Check if the SIM does not want 6 byte commands */
 640         xpt_path_inq(&cpi, periph->path);
 641         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
 642                 softc->quirks |= CD_Q_10_BYTE_ONLY;
 643
 644         TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph);
 645
 646         /* The default is 6 byte commands, unless quirked otherwise */
 647         if (softc->quirks & CD_Q_10_BYTE_ONLY)
 648                 softc->minimum_command_size = 10;
 649         else
 650                 softc->minimum_command_size = 6;
 651
 652         /*
 653          * Take a reference on the periph while cdstart is called to finish the
 654          * probe.  The reference will be dropped in cddone at the end of probe.
 655          */
 656         (void)cam_periph_acquire(periph);
 657         cam_periph_unlock(periph);
 658         /*
 659          * Load the user's default, if any.
 660          */
 661         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size",
 662                  periph->unit_number);
 663         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size);
 664
 665         /* 6 and 10 are the only permissible values here. */
 666         if (softc->minimum_command_size < 6)
 667                 softc->minimum_command_size = 6;
 668         else if (softc->minimum_command_size > 6)
 669                 softc->minimum_command_size = 10;
 670
 671         /*
 672          * We need to register the statistics structure for this device,
 673          * but we don't have the blocksize yet for it.  So, we register
 674          * the structure and indicate that we don't have the blocksize
 675          * yet.  Unlike other SCSI peripheral drivers, we explicitly set
 676          * the device type here to be CDROM, rather than just ORing in
 677          * the device type.  This is because this driver can attach to either
 678          * CDROM or WORM devices, and we want this peripheral driver to
 679          * show up in the devstat list as a CD peripheral driver, not a
 680          * WORM peripheral driver.  WORM drives will also have the WORM
 681          * driver attached to them.
 682          */
 683         softc->disk = disk_alloc();
 684         softc->disk->d_devstat = devstat_new_entry("cd",
 685                           periph->unit_number, 0,
 686                           DEVSTAT_BS_UNAVAILABLE,
 687                           DEVSTAT_TYPE_CDROM |
 688                           XPORT_DEVSTAT_TYPE(cpi.transport),
 689                           DEVSTAT_PRIORITY_CD);
 690         softc->disk->d_open = cdopen;
 691         softc->disk->d_close = cdclose;
 692         softc->disk->d_strategy = cdstrategy;
 693         softc->disk->d_gone = cddiskgonecb;
 694         softc->disk->d_ioctl = cdioctl;
 695         softc->disk->d_name = "cd";
 696         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
 697             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
 698         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
 699         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
 700             cgd->inq_data.product, sizeof(cgd->inq_data.product),
 701             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
 702         softc->disk->d_unit = periph->unit_number;
 703         softc->disk->d_drv1 = periph;
 704         if (cpi.maxio == 0)
 705                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
 706         else if (cpi.maxio > maxphys)
 707                 softc->disk->d_maxsize = maxphys;       /* for safety */
 708         else
 709                 softc->disk->d_maxsize = cpi.maxio;
 710         softc->disk->d_flags = 0;
 711         softc->disk->d_hba_vendor = cpi.hba_vendor;
 712         softc->disk->d_hba_device = cpi.hba_device;
 713         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
 714         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
 715         snprintf(softc->disk->d_attachment, sizeof(softc->disk->d_attachment),
 716             "%s%d", cpi.dev_name, cpi.unit_number);
 717         cam_periph_lock(periph);
 718
 719         /*
 720          * Add an async callback so that we get
 721          * notified if this device goes away.
 722          */
 723         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
 724             AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path);
 725
 726         /*
 727          * Schedule a periodic media polling events.
 728          */
 729         callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
 730         if ((softc->flags & CD_FLAG_DISC_REMOVABLE) &&
 731             (cgd->inq_flags & SID_AEN) == 0 &&
 732             cd_poll_period != 0) {
 733                 callout_reset_sbt(&softc->mediapoll_c, cd_poll_period * SBT_1S,
 734                     0, cdmediapoll, periph, C_PREL(1));
 735         }
 736
 737         /* Released after probe when disk_create() call pass it to GEOM. */
 738         cam_periph_hold_boot(periph);
 739
 740         xpt_schedule(periph, CAM_PRIORITY_DEV);
 741         return(CAM_REQ_CMP);
 742 }
 743
 744 static int
 745 cdopen(struct disk *dp)
 746 {
 747         struct cam_periph *periph;
 748         struct cd_softc *softc;
 749         int error;
 750
 751         periph = (struct cam_periph *)dp->d_drv1;
 752         softc = (struct cd_softc *)periph->softc;
 753
 754         if (cam_periph_acquire(periph) != 0)
 755                 return(ENXIO);
 756
 757         cam_periph_lock(periph);
 758
 759         if (softc->flags & CD_FLAG_INVALID) {
 760                 cam_periph_release_locked(periph);
 761                 cam_periph_unlock(periph);
 762                 return(ENXIO);
 763         }
 764
 765         if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
 766                 cam_periph_release_locked(periph);
 767                 cam_periph_unlock(periph);
 768                 return (error);
 769         }
 770
 771         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 772             ("cdopen\n"));
 773
 774         /*
 775          * Check for media, and set the appropriate flags.  We don't bail
 776          * if we don't have media, but then we don't allow anything but the
 777          * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
 778          */
 779         cdcheckmedia(periph, /*do_wait*/ 1);
 780
 781         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
 782         cam_periph_unhold(periph);
 783
 784         cam_periph_unlock(periph);
 785
 786         return (0);
 787 }
 788
 789 static int
 790 cdclose(struct disk *dp)
 791 {
 792         struct  cam_periph *periph;
 793         struct  cd_softc *softc;
 794
 795         periph = (struct cam_periph *)dp->d_drv1;
 796         softc = (struct cd_softc *)periph->softc;
 797
 798         cam_periph_lock(periph);
 799         if (cam_periph_hold(periph, PRIBIO) != 0) {
 800                 cam_periph_unlock(periph);
 801                 cam_periph_release(periph);
 802                 return (0);
 803         }
 804
 805         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 806             ("cdclose\n"));
 807
 808         if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
 809                 cdprevent(periph, PR_ALLOW);
 810
 811         /*
 812          * Since we're closing this CD, mark the blocksize as unavailable.
 813          * It will be marked as available when the CD is opened again.
 814          */
 815         softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
 816
 817         /*
 818          * We'll check the media and toc again at the next open().
 819          */
 820         softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
 821
 822         cam_periph_unhold(periph);
 823         cam_periph_release_locked(periph);
 824         cam_periph_unlock(periph);
 825
 826         return (0);
 827 }
 828
 829 static int
 830 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
 831                                               u_int32_t cam_flags,
 832                                               u_int32_t sense_flags),
 833          u_int32_t cam_flags, u_int32_t sense_flags)
 834 {
 835         struct cd_softc *softc;
 836         struct cam_periph *periph;
 837         int error;
 838
 839         periph = xpt_path_periph(ccb->ccb_h.path);
 840         softc = (struct cd_softc *)periph->softc;
 841
 842         error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
 843                                   softc->disk->d_devstat);
 844
 845         return(error);
 846 }
 847
 848 /*
 849  * Actually translate the requested transfer into one the physical driver
 850  * can understand.  The transfer is described by a buf and will include
 851  * only one physical transfer.
 852  */
 853 static void
 854 cdstrategy(struct bio *bp)
 855 {
 856         struct cam_periph *periph;
 857         struct cd_softc *softc;
 858
 859         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 860         cam_periph_lock(periph);
 861         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
 862             ("cdstrategy(%p)\n", bp));
 863
 864         softc = (struct cd_softc *)periph->softc;
 865
 866         /*
 867          * If the device has been made invalid, error out
 868          */
 869         if ((softc->flags & CD_FLAG_INVALID)) {
 870                 cam_periph_unlock(periph);
 871                 biofinish(bp, NULL, ENXIO);
 872                 return;
 873         }
 874
 875         /*
 876          * Place it in the queue of disk activities for this disk
 877          */
 878         bioq_disksort(&softc->bio_queue, bp);
 879
 880         /*
 881          * If we don't know that we have valid media, schedule the media
 882          * check first.  The I/O will get executed after the media check.
 883          */
 884         if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
 885                 cdcheckmedia(periph, /*do_wait*/ 0);
 886         else
 887                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
 888
 889         cam_periph_unlock(periph);
 890         return;
 891 }
 892
 893 static void
 894 cdstart(struct cam_periph *periph, union ccb *start_ccb)
 895 {
 896         struct cd_softc *softc;
 897         struct bio *bp;
 898         struct ccb_scsiio *csio;
 899
 900         cam_periph_assert(periph, MA_OWNED);
 901         softc = (struct cd_softc *)periph->softc;
 902
 903         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
 904
 905         switch (softc->state) {
 906         case CD_STATE_NORMAL:
 907         {
 908                 bp = bioq_first(&softc->bio_queue);
 909                 if (bp == NULL) {
 910                         if (softc->tur) {
 911                                 softc->tur = 0;
 912                                 csio = &start_ccb->csio;
 913                                 scsi_test_unit_ready(csio,
 914                                      /*retries*/ cd_retry_count,
 915                                      cddone,
 916                                      MSG_SIMPLE_Q_TAG,
 917                                      SSD_FULL_SIZE,
 918                                      cd_timeout);
 919                                 start_ccb->ccb_h.ccb_bp = NULL;
 920                                 start_ccb->ccb_h.ccb_state = CD_CCB_TUR;
 921                                 xpt_action(start_ccb);
 922                         } else
 923                                 xpt_release_ccb(start_ccb);
 924                 } else {
 925                         if (softc->tur) {
 926                                 softc->tur = 0;
 927                                 cam_periph_release_locked(periph);
 928                         }
 929                         bioq_remove(&softc->bio_queue, bp);
 930
 931                         if ((bp->bio_cmd != BIO_READ) &&
 932                             (bp->bio_cmd != BIO_WRITE)) {
 933                                 biofinish(bp, NULL, EOPNOTSUPP);
 934                                 xpt_release_ccb(start_ccb);
 935                                 return;
 936                         }
 937
 938                         scsi_read_write(&start_ccb->csio,
 939                                         /*retries*/ cd_retry_count,
 940                                         /* cbfcnp */ cddone,
 941                                         MSG_SIMPLE_Q_TAG,
 942                                         /* read */bp->bio_cmd == BIO_READ ?
 943                                         SCSI_RW_READ : SCSI_RW_WRITE,
 944                                         /* byte2 */ 0,
 945                                         /* minimum_cmd_size */ 10,
 946                                         /* lba */ bp->bio_offset /
 947                                           softc->params.blksize,
 948                                         bp->bio_bcount / softc->params.blksize,
 949                                         /* data_ptr */ bp->bio_data,
 950                                         /* dxfer_len */ bp->bio_bcount,
 951                                         /* sense_len */ cd_retry_count ?
 952                                           SSD_FULL_SIZE : SF_NO_PRINT,
 953                                         /* timeout */ cd_timeout);
 954                         /* Use READ CD command for audio tracks. */
 955                         if (softc->params.blksize == 2352) {
 956                                 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD;
 957                                 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8;
 958                                 start_ccb->csio.cdb_io.cdb_bytes[10] = 0;
 959                                 start_ccb->csio.cdb_io.cdb_bytes[11] = 0;
 960                                 start_ccb->csio.cdb_len = 12;
 961                         }
 962                         start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
 963
 964                         LIST_INSERT_HEAD(&softc->pending_ccbs,
 965                                          &start_ccb->ccb_h, periph_links.le);
 966                         softc->outstanding_cmds++;
 967
 968                         /* We expect a unit attention from this device */
 969                         if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
 970                                 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
 971                                 softc->flags &= ~CD_FLAG_RETRY_UA;
 972                         }
 973
 974                         start_ccb->ccb_h.ccb_bp = bp;
 975                         bp = bioq_first(&softc->bio_queue);
 976
 977                         xpt_action(start_ccb);
 978                 }
 979                 if (bp != NULL || softc->tur) {
 980                         /* Have more work to do, so ensure we stay scheduled */
 981                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
 982                 }
 983                 break;
 984         }
 985         case CD_STATE_PROBE:
 986         case CD_STATE_MEDIA_SIZE:
 987         {
 988                 struct scsi_read_capacity_data *rcap;
 989
 990                 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
 991                     M_SCSICD, M_NOWAIT | M_ZERO);
 992                 if (rcap == NULL) {
 993                         xpt_print(periph->path,
 994                             "%s: Couldn't malloc read_capacity data\n",
 995                             __func__);
 996                         xpt_release_ccb(start_ccb);
 997                         /*
 998                          * We can't probe because we can't allocate memory,
 999                          * so invalidate the peripheral.  The system probably
1000                          * has larger problems at this stage.  If we've
1001                          * already probed (and are re-probing capacity), we
1002                          * don't need to invalidate.
1003                          *
1004                          * XXX KDM need to reset probe state and kick out
1005                          * pending I/O.
1006                          */
1007                         if (softc->state == CD_STATE_PROBE)
1008                                 cam_periph_invalidate(periph);
1009                         break;
1010                 }
1011
1012                 /*
1013                  * Set the default capacity and sector size to something that
1014                  * GEOM can handle.  This will get reset when a read capacity
1015                  * completes successfully.
1016                  */
1017                 softc->disk->d_sectorsize = 2048;
1018                 softc->disk->d_mediasize = 0;
1019
1020                 csio = &start_ccb->csio;
1021                 scsi_read_capacity(csio,
1022                                    /*retries*/ cd_retry_count,
1023                                    cddone,
1024                                    MSG_SIMPLE_Q_TAG,
1025                                    rcap,
1026                                    SSD_FULL_SIZE,
1027                                    /*timeout*/20000);
1028                 start_ccb->ccb_h.ccb_bp = NULL;
1029                 if (softc->state == CD_STATE_PROBE)
1030                         start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
1031                 else
1032                         start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_SIZE;
1033                 xpt_action(start_ccb);
1034                 break;
1035         }
1036         case CD_STATE_MEDIA_ALLOW:
1037         case CD_STATE_MEDIA_PREVENT:
1038         {
1039                 /*
1040                  * If the CD is already locked, we don't need to do this.
1041                  * Move on to the capacity check.
1042                  */
1043                 if (softc->state == CD_STATE_MEDIA_PREVENT
1044                  && (softc->flags & CD_FLAG_DISC_LOCKED) != 0) {
1045                         softc->state = CD_STATE_MEDIA_SIZE;
1046                         xpt_release_ccb(start_ccb);
1047                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1048                         break;
1049                 }
1050
1051                 scsi_prevent(&start_ccb->csio,
1052                              /*retries*/ cd_retry_count,
1053                              /*cbfcnp*/ cddone,
1054                              /*tag_action*/ MSG_SIMPLE_Q_TAG,
1055                              /*action*/ (softc->state == CD_STATE_MEDIA_ALLOW) ?
1056                                         PR_ALLOW : PR_PREVENT,
1057                              /*sense_len*/ SSD_FULL_SIZE,
1058                              /*timeout*/ 60000);
1059
1060                 start_ccb->ccb_h.ccb_bp = NULL;
1061                 if (softc->state == CD_STATE_MEDIA_ALLOW)
1062                         start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_ALLOW;
1063                 else
1064                         start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_PREVENT;
1065                 xpt_action(start_ccb);
1066                 break;
1067         }
1068         case CD_STATE_MEDIA_TOC_HDR: {
1069                 struct ioc_toc_header *toch;
1070
1071                 bzero(&softc->toc, sizeof(softc->toc));
1072
1073                 toch = &softc->toc.header;
1074
1075                 scsi_read_toc(&start_ccb->csio,
1076                               /*retries*/ cd_retry_count,
1077                               /*cbfcnp*/ cddone,
1078                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
1079                               /*byte1_flags*/ 0,
1080                               /*format*/ SRTOC_FORMAT_TOC,
1081                               /*track*/ 0,
1082                               /*data_ptr*/ (uint8_t *)toch,
1083                               /*dxfer_len*/ sizeof(*toch),
1084                               /*sense_len*/ SSD_FULL_SIZE,
1085                               /*timeout*/ 50000);
1086                 start_ccb->ccb_h.ccb_bp = NULL;
1087                 start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_HDR;
1088                 xpt_action(start_ccb);
1089                 break;
1090         }
1091         case CD_STATE_MEDIA_TOC_FULL: {
1092                 bzero(&softc->toc, sizeof(softc->toc));
1093
1094                 scsi_read_toc(&start_ccb->csio,
1095                               /*retries*/ cd_retry_count,
1096                               /*cbfcnp*/ cddone,
1097                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
1098                               /*byte1_flags*/ 0,
1099                               /*format*/ SRTOC_FORMAT_TOC,
1100                               /*track*/ 0,
1101                               /*data_ptr*/ (uint8_t *)&softc->toc,
1102                               /*dxfer_len*/ softc->toc_read_len ?
1103                                             softc->toc_read_len :
1104                                             sizeof(softc->toc),
1105                               /*sense_len*/ SSD_FULL_SIZE,
1106                               /*timeout*/ 50000);
1107                 start_ccb->ccb_h.ccb_bp = NULL;
1108                 start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_FULL;
1109                 xpt_action(start_ccb);
1110                 break;
1111         }
1112         case CD_STATE_MEDIA_TOC_LEAD: {
1113                 struct cd_toc_single *leadout;
1114
1115                 leadout = &softc->leadout;
1116                 bzero(leadout, sizeof(*leadout));
1117
1118                 scsi_read_toc(&start_ccb->csio,
1119                               /*retries*/ cd_retry_count,
1120                               /*cbfcnp*/ cddone,
1121                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
1122                               /*byte1_flags*/ CD_MSF,
1123                               /*format*/ SRTOC_FORMAT_TOC,
1124                               /*track*/ LEADOUT,
1125                               /*data_ptr*/ (uint8_t *)leadout,
1126                               /*dxfer_len*/ sizeof(*leadout),
1127                               /*sense_len*/ SSD_FULL_SIZE,
1128                               /*timeout*/ 50000);
1129                 start_ccb->ccb_h.ccb_bp = NULL;
1130                 start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_LEAD;
1131                 xpt_action(start_ccb);
1132                 break;
1133         }
1134         }
1135 }
1136
1137 static void
1138 cddone(struct cam_periph *periph, union ccb *done_ccb)
1139 {
1140         struct cd_softc *softc;
1141         struct ccb_scsiio *csio;
1142
1143         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
1144
1145         cam_periph_assert(periph, MA_OWNED);
1146         softc = (struct cd_softc *)periph->softc;
1147         csio = &done_ccb->csio;
1148
1149         switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
1150         case CD_CCB_BUFFER_IO:
1151         {
1152                 struct bio      *bp;
1153                 int             error;
1154
1155                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1156                 error = 0;
1157
1158                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1159                         int sf;
1160
1161                         if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
1162                                 sf = SF_RETRY_UA;
1163                         else
1164                                 sf = 0;
1165
1166                         error = cderror(done_ccb, CAM_RETRY_SELTO, sf);
1167                         if (error == ERESTART) {
1168                                 /*
1169                                  * A retry was scheuled, so
1170                                  * just return.
1171                                  */
1172                                 return;
1173                         }
1174                 }
1175
1176                 if (error != 0) {
1177                         xpt_print(periph->path,
1178                             "cddone: got error %#x back\n", error);
1179                         bioq_flush(&softc->bio_queue, NULL, EIO);
1180                         bp->bio_resid = bp->bio_bcount;
1181                         bp->bio_error = error;
1182                         bp->bio_flags |= BIO_ERROR;
1183                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1184                                 cam_release_devq(done_ccb->ccb_h.path,
1185                                          /*relsim_flags*/0,
1186                                          /*reduction*/0,
1187                                          /*timeout*/0,
1188                                          /*getcount_only*/0);
1189
1190                 } else {
1191                         bp->bio_resid = csio->resid;
1192                         bp->bio_error = 0;
1193                         if (bp->bio_resid != 0) {
1194                                 /*
1195                                  * Short transfer ???
1196                                  * XXX: not sure this is correct for partial
1197                                  * transfers at EOM
1198                                  */
1199                                 bp->bio_flags |= BIO_ERROR;
1200                         }
1201                 }
1202
1203                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1204                 softc->outstanding_cmds--;
1205
1206                 biofinish(bp, NULL, 0);
1207                 break;
1208         }
1209         case CD_CCB_PROBE:
1210         {
1211                 struct     scsi_read_capacity_data *rdcap;
1212                 char       *announce_buf;
1213                 struct     cd_params *cdp;
1214                 int error;
1215
1216                 cdp = &softc->params;
1217                 announce_buf = softc->announce_temp;
1218                 bzero(announce_buf, CD_ANNOUNCETMP_SZ);
1219
1220                 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1221
1222                 cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
1223                 cdp->blksize = scsi_4btoul (rdcap->length);
1224
1225                 /*
1226                  * Retry any UNIT ATTENTION type errors.  They
1227                  * are expected at boot.
1228                  */
1229                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP ||
1230                     (error = cderror(done_ccb, CAM_RETRY_SELTO,
1231                                 SF_RETRY_UA | SF_NO_PRINT)) == 0) {
1232                         snprintf(announce_buf, CD_ANNOUNCETMP_SZ,
1233                             "%juMB (%ju %u byte sectors)",
1234                             ((uintmax_t)cdp->disksize * cdp->blksize) /
1235                              (1024 * 1024),
1236                             (uintmax_t)cdp->disksize, cdp->blksize);
1237                 } else {
1238                         if (error == ERESTART) {
1239                                 /*
1240                                  * A retry was scheuled, so
1241                                  * just return.
1242                                  */
1243                                 return;
1244                         } else {
1245                                 int asc, ascq;
1246                                 int sense_key, error_code;
1247                                 int have_sense;
1248                                 cam_status status;
1249                                 struct ccb_getdev cgd;
1250
1251                                 /* Don't wedge this device's queue */
1252                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1253                                         cam_release_devq(done_ccb->ccb_h.path,
1254                                                  /*relsim_flags*/0,
1255                                                  /*reduction*/0,
1256                                                  /*timeout*/0,
1257                                                  /*getcount_only*/0);
1258
1259                                 status = done_ccb->ccb_h.status;
1260
1261                                 bzero(&cgd, sizeof(cgd));
1262                                 xpt_setup_ccb(&cgd.ccb_h,
1263                                               done_ccb->ccb_h.path,
1264                                               CAM_PRIORITY_NORMAL);
1265                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1266                                 xpt_action((union ccb *)&cgd);
1267
1268                                 if (scsi_extract_sense_ccb(done_ccb,
1269                                     &error_code, &sense_key, &asc, &ascq))
1270                                         have_sense = TRUE;
1271                                 else
1272                                         have_sense = FALSE;
1273
1274                                 /*
1275                                  * Attach to anything that claims to be a
1276                                  * CDROM or WORM device, as long as it
1277                                  * doesn't return a "Logical unit not
1278                                  * supported" (0x25) error.
1279                                  */
1280                                 if ((have_sense) && (asc != 0x25)
1281                                  && (error_code == SSD_CURRENT_ERROR
1282                                   || error_code == SSD_DESC_CURRENT_ERROR)) {
1283                                         const char *sense_key_desc;
1284                                         const char *asc_desc;
1285
1286                                         scsi_sense_desc(sense_key, asc, ascq,
1287                                                         &cgd.inq_data,
1288                                                         &sense_key_desc,
1289                                                         &asc_desc);
1290                                         snprintf(announce_buf,
1291                                             CD_ANNOUNCETMP_SZ,
1292                                                 "Attempt to query device "
1293                                                 "size failed: %s, %s",
1294                                                 sense_key_desc,
1295                                                 asc_desc);
1296                                 } else if ((have_sense == 0)
1297                                       && ((status & CAM_STATUS_MASK) ==
1298                                            CAM_SCSI_STATUS_ERROR)
1299                                       && (csio->scsi_status ==
1300                                           SCSI_STATUS_BUSY)) {
1301                                         snprintf(announce_buf,
1302                                             CD_ANNOUNCETMP_SZ,
1303                                             "Attempt to query device "
1304                                             "size failed: SCSI Status: %s",
1305                                             scsi_status_string(csio));
1306                                 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
1307                                         /*
1308                                          * We only print out an error for
1309                                          * CDROM type devices.  For WORM
1310                                          * devices, we don't print out an
1311                                          * error since a few WORM devices
1312                                          * don't support CDROM commands.
1313                                          * If we have sense information, go
1314                                          * ahead and print it out.
1315                                          * Otherwise, just say that we
1316                                          * couldn't attach.
1317                                          */
1318
1319                                         /*
1320                                          * Just print out the error, not
1321                                          * the full probe message, when we
1322                                          * don't attach.
1323                                          */
1324                                         if (have_sense)
1325                                                 scsi_sense_print(
1326                                                         &done_ccb->csio);
1327                                         else {
1328                                                 xpt_print(periph->path,
1329                                                     "got CAM status %#x\n",
1330                                                     done_ccb->ccb_h.status);
1331                                         }
1332                                         xpt_print(periph->path, "fatal error, "
1333                                             "failed to attach to device\n");
1334                                         /*
1335                                          * Invalidate this peripheral.
1336                                          */
1337                                         cam_periph_invalidate(periph);
1338
1339                                         announce_buf = NULL;
1340                                 } else {
1341                                         /*
1342                                          * Invalidate this peripheral.
1343                                          */
1344                                         cam_periph_invalidate(periph);
1345                                         announce_buf = NULL;
1346                                 }
1347                         }
1348                 }
1349                 free(rdcap, M_SCSICD);
1350                 if (announce_buf != NULL) {
1351                         struct sbuf sb;
1352
1353                         sbuf_new(&sb, softc->announce_buf, CD_ANNOUNCE_SZ,
1354                             SBUF_FIXEDLEN);
1355                         xpt_announce_periph_sbuf(periph, &sb, announce_buf);
1356                         xpt_announce_quirks_sbuf(periph, &sb, softc->quirks,
1357                             CD_Q_BIT_STRING);
1358                         sbuf_finish(&sb);
1359                         sbuf_putbuf(&sb);
1360
1361                         /*
1362                          * Create our sysctl variables, now that we know
1363                          * we have successfully attached.
1364                          */
1365                         taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1366                 }
1367                 softc->state = CD_STATE_NORMAL;
1368                 /*
1369                  * Since our peripheral may be invalidated by an error
1370                  * above or an external event, we must release our CCB
1371                  * before releasing the probe lock on the peripheral.
1372                  * The peripheral will only go away once the last lock
1373                  * is removed, and we need it around for the CCB release
1374                  * operation.
1375                  */
1376                 xpt_release_ccb(done_ccb);
1377
1378                 /*
1379                  * We'll release this reference once GEOM calls us back via
1380                  * cddiskgonecb(), telling us that our provider has been freed.
1381                  */
1382                 if (cam_periph_acquire(periph) == 0)
1383                         disk_create(softc->disk, DISK_VERSION);
1384
1385                 cam_periph_release_boot(periph);
1386                 cam_periph_release_locked(periph);
1387                 return;
1388         }
1389         case CD_CCB_TUR:
1390         {
1391                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1392                         if (cderror(done_ccb, CAM_RETRY_SELTO,
1393                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
1394                             ERESTART)
1395                                 return;
1396                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1397                                 cam_release_devq(done_ccb->ccb_h.path,
1398                                                  /*relsim_flags*/0,
1399                                                  /*reduction*/0,
1400                                                  /*timeout*/0,
1401                                                  /*getcount_only*/0);
1402                 }
1403                 xpt_release_ccb(done_ccb);
1404                 cam_periph_release_locked(periph);
1405                 return;
1406         }
1407         case CD_CCB_MEDIA_ALLOW:
1408         case CD_CCB_MEDIA_PREVENT:
1409         {
1410                 int error;
1411                 int is_prevent;
1412
1413                 error = 0;
1414
1415                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1416                         error = cderror(done_ccb, CAM_RETRY_SELTO,
1417                             SF_RETRY_UA | SF_NO_PRINT);
1418                 }
1419                 if (error == ERESTART)
1420                         return;
1421                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1422                         cam_release_devq(done_ccb->ccb_h.path,
1423                                          /*relsim_flags*/0,
1424                                          /*reduction*/0,
1425                                          /*timeout*/0,
1426                                          /*getcount_only*/0);
1427
1428                 /*
1429                  * Note that just like the original cdcheckmedia(), we do
1430                  * a prevent without failing the whole operation if the
1431                  * prevent fails.  We try, but keep going if it doesn't
1432                  * work.
1433                  */
1434
1435                 if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1436                      CD_CCB_MEDIA_PREVENT)
1437                         is_prevent = 1;
1438                 else
1439                         is_prevent = 0;
1440
1441                 xpt_release_ccb(done_ccb);
1442
1443                 if (is_prevent != 0) {
1444                         if (error == 0)
1445                                 softc->flags |= CD_FLAG_DISC_LOCKED;
1446                         else
1447                                 softc->flags &= ~CD_FLAG_DISC_LOCKED;
1448                         softc->state = CD_STATE_MEDIA_SIZE;
1449                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1450                 } else {
1451                         if (error == 0)
1452                                 softc->flags &= ~CD_FLAG_DISC_LOCKED;
1453                         softc->state = CD_STATE_NORMAL;
1454                         if (bioq_first(&softc->bio_queue) != NULL)
1455                                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1456                 }
1457                 return;
1458         }
1459         case CD_CCB_MEDIA_SIZE:
1460         {
1461                 struct scsi_read_capacity_data *rdcap;
1462                 int error;
1463
1464                 error = 0;
1465                 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1466                         error = cderror(done_ccb, CAM_RETRY_SELTO,
1467                             SF_RETRY_UA | SF_NO_PRINT);
1468                 }
1469                 if (error == ERESTART)
1470                         return;
1471                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1472                         cam_release_devq(done_ccb->ccb_h.path,
1473                                          /*relsim_flags*/0,
1474                                          /*reduction*/0,
1475                                          /*timeout*/0,
1476                                          /*getcount_only*/0);
1477                 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1478
1479                 if (error == 0) {
1480                         softc->params.disksize =scsi_4btoul(rdcap->addr) + 1;
1481                         softc->params.blksize  = scsi_4btoul(rdcap->length);
1482
1483                         /* Make sure we got at least some block size. */
1484                         if (softc->params.blksize == 0)
1485                                 error = EIO;
1486                         /*
1487                          * SCSI-3 mandates that the reported blocksize shall be
1488                          * 2048.  Older drives sometimes report funny values,
1489                          * trim it down to 2048, or other parts of the kernel
1490                          * will get confused.
1491                          *
1492                          * XXX we leave drives alone that might report 512
1493                          * bytes, as well as drives reporting more weird
1494                          * sizes like perhaps 4K.
1495                          */
1496                         if (softc->params.blksize > 2048
1497                          && softc->params.blksize <= 2352)
1498                                 softc->params.blksize = 2048;
1499                 }
1500                 free(rdcap, M_SCSICD);
1501
1502                 if (error == 0) {
1503                         softc->disk->d_sectorsize = softc->params.blksize;
1504                         softc->disk->d_mediasize =
1505                             (off_t)softc->params.blksize *
1506                             softc->params.disksize;
1507                         softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
1508                         softc->state = CD_STATE_MEDIA_TOC_HDR;
1509                 } else {
1510                         softc->flags &= ~(CD_FLAG_VALID_MEDIA |
1511                                           CD_FLAG_VALID_TOC);
1512                         bioq_flush(&softc->bio_queue, NULL, EINVAL);
1513                         softc->state = CD_STATE_MEDIA_ALLOW;
1514                         cdmediaprobedone(periph);
1515                 }
1516                 xpt_release_ccb(done_ccb);
1517                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1518                 return;
1519         }
1520         case CD_CCB_MEDIA_TOC_HDR:
1521         case CD_CCB_MEDIA_TOC_FULL:
1522         case CD_CCB_MEDIA_TOC_LEAD:
1523         {
1524                 int error;
1525                 struct ioc_toc_header *toch;
1526                 int num_entries;
1527                 int cdindex;
1528
1529                 error = 0;
1530
1531                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1532                         error = cderror(done_ccb, CAM_RETRY_SELTO,
1533                             SF_RETRY_UA | SF_NO_PRINT);
1534                 }
1535                 if (error == ERESTART)
1536                         return;
1537
1538                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1539                         cam_release_devq(done_ccb->ccb_h.path,
1540                                          /*relsim_flags*/0,
1541                                          /*reduction*/0,
1542                                          /*timeout*/0,
1543                                          /*getcount_only*/0);
1544
1545                 /*
1546                  * We will get errors here for media that doesn't have a table
1547                  * of contents.  According to the MMC-3 spec: "When a Read
1548                  * TOC/PMA/ATIP command is presented for a DDCD/CD-R/RW media,
1549                  * where the first TOC has not been recorded (no complete
1550                  * session) and the Format codes 0000b, 0001b, or 0010b are
1551                  * specified, this command shall be rejected with an INVALID
1552                  * FIELD IN CDB.  Devices that are not capable of reading an
1553                  * incomplete session on DDC/CD-R/RW media shall report
1554                  * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
1555                  *
1556                  * So this isn't fatal if we can't read the table of contents,
1557                  * it just means that the user won't be able to issue the
1558                  * play tracks ioctl, and likely lots of other stuff won't
1559                  * work either.  They need to burn the CD before we can do
1560                  * a whole lot with it.  So we don't print anything here if
1561                  * we get an error back.
1562                  *
1563                  * We also bail out if the drive doesn't at least give us
1564                  * the full TOC header.
1565                  */
1566                 if ((error != 0)
1567                  || ((csio->dxfer_len - csio->resid) <
1568                       sizeof(struct ioc_toc_header))) {
1569                         softc->flags &= ~CD_FLAG_VALID_TOC;
1570                         bzero(&softc->toc, sizeof(softc->toc));
1571                         /*
1572                          * Failing the TOC read is not an error.
1573                          */
1574                         softc->state = CD_STATE_NORMAL;
1575                         xpt_release_ccb(done_ccb);
1576
1577                         cdmediaprobedone(periph);
1578
1579                         /*
1580                          * Go ahead and schedule I/O execution if there is
1581                          * anything in the queue.  It'll probably get
1582                          * kicked out with an error.
1583                          */
1584                         if (bioq_first(&softc->bio_queue) != NULL)
1585                                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1586                         return;
1587                 }
1588
1589                 /*
1590                  * Note that this is NOT the storage location used for the
1591                  * leadout!
1592                  */
1593                 toch = &softc->toc.header;
1594
1595                 if (softc->quirks & CD_Q_BCD_TRACKS) {
1596                         toch->starting_track = bcd2bin(toch->starting_track);
1597                         toch->ending_track = bcd2bin(toch->ending_track);
1598                 }
1599
1600                 /* Number of TOC entries, plus leadout */
1601                 num_entries = toch->ending_track - toch->starting_track + 2;
1602                 cdindex = toch->starting_track + num_entries - 1;
1603
1604                 if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1605                      CD_CCB_MEDIA_TOC_HDR) {
1606                         if (num_entries <= 0 ||
1607                             num_entries > nitems(softc->toc.entries)) {
1608                                 softc->flags &= ~CD_FLAG_VALID_TOC;
1609                                 bzero(&softc->toc, sizeof(softc->toc));
1610                                 /*
1611                                  * Failing the TOC read is not an error.
1612                                  */
1613                                 softc->state = CD_STATE_NORMAL;
1614                                 xpt_release_ccb(done_ccb);
1615
1616                                 cdmediaprobedone(periph);
1617
1618                                 /*
1619                                  * Go ahead and schedule I/O execution if
1620                                  * there is anything in the queue.  It'll
1621                                  * probably get kicked out with an error.
1622                                  */
1623                                 if (bioq_first(&softc->bio_queue) != NULL)
1624                                         xpt_schedule(periph,
1625                                             CAM_PRIORITY_NORMAL);
1626                         } else {
1627                                 softc->toc_read_len = num_entries *
1628                                     sizeof(struct cd_toc_entry);
1629                                 softc->toc_read_len += sizeof(*toch);
1630
1631                                 softc->state = CD_STATE_MEDIA_TOC_FULL;
1632                                 xpt_release_ccb(done_ccb);
1633                                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1634                         }
1635
1636                         return;
1637                 } else if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1638                             CD_CCB_MEDIA_TOC_LEAD) {
1639                         struct cd_toc_single *leadout;
1640
1641                         leadout = (struct cd_toc_single *)csio->data_ptr;
1642                         softc->toc.entries[cdindex - toch->starting_track] =
1643                             leadout->entry;
1644                 } else if (((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1645                             CD_CCB_MEDIA_TOC_FULL)
1646                         && (cdindex == toch->ending_track + 1)) {
1647                         /*
1648                          * XXX KDM is this necessary?  Probably only if the
1649                          * drive doesn't return leadout information with the
1650                          * table of contents.
1651                          */
1652                         softc->state = CD_STATE_MEDIA_TOC_LEAD;
1653                         xpt_release_ccb(done_ccb);
1654                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1655                         return;
1656                 }
1657
1658                 if (softc->quirks & CD_Q_BCD_TRACKS) {
1659                         for (cdindex = 0; cdindex < num_entries - 1; cdindex++){
1660                                 softc->toc.entries[cdindex].track =
1661                                     bcd2bin(softc->toc.entries[cdindex].track);
1662                         }
1663                 }
1664
1665                 softc->flags |= CD_FLAG_VALID_TOC;
1666                 /* If the first track is audio, correct sector size. */
1667                 if ((softc->toc.entries[0].control & 4) == 0) {
1668                         softc->disk->d_sectorsize =softc->params.blksize = 2352;
1669                         softc->disk->d_mediasize =
1670                             (off_t)softc->params.blksize *
1671                             softc->params.disksize;
1672                 }
1673                 softc->state = CD_STATE_NORMAL;
1674
1675                 /*
1676                  * We unconditionally (re)set the blocksize each time the
1677                  * CD device is opened.  This is because the CD can change,
1678                  * and therefore the blocksize might change.
1679                  * XXX problems here if some slice or partition is still
1680                  * open with the old size?
1681                  */
1682                 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE)!=0)
1683                         softc->disk->d_devstat->flags &=
1684                             ~DEVSTAT_BS_UNAVAILABLE;
1685                 softc->disk->d_devstat->block_size = softc->params.blksize;
1686
1687                 xpt_release_ccb(done_ccb);
1688
1689                 cdmediaprobedone(periph);
1690
1691                 if (bioq_first(&softc->bio_queue) != NULL)
1692                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1693                 return;
1694         }
1695         default:
1696                 break;
1697         }
1698         xpt_release_ccb(done_ccb);
1699 }
1700
1701 static union cd_pages *
1702 cdgetpage(struct cd_mode_params *mode_params)
1703 {
1704         union cd_pages *page;
1705
1706         if (mode_params->cdb_size == 10)
1707                 page = (union cd_pages *)find_mode_page_10(
1708                         (struct scsi_mode_header_10 *)mode_params->mode_buf);
1709         else
1710                 page = (union cd_pages *)find_mode_page_6(
1711                         (struct scsi_mode_header_6 *)mode_params->mode_buf);
1712
1713         return (page);
1714 }
1715
1716 static int
1717 cdgetpagesize(int page_num)
1718 {
1719         u_int i;
1720
1721         for (i = 0; i < nitems(cd_page_size_table); i++) {
1722                 if (cd_page_size_table[i].page == page_num)
1723                         return (cd_page_size_table[i].page_size);
1724         }
1725
1726         return (-1);
1727 }
1728
1729 static struct cd_toc_entry *
1730 te_data_get_ptr(void *irtep, u_long cmd)
1731 {
1732         union {
1733                 struct ioc_read_toc_entry irte;
1734 #ifdef COMPAT_FREEBSD32
1735                 struct ioc_read_toc_entry32 irte32;
1736 #endif
1737         } *irteup;
1738
1739         irteup = irtep;
1740         switch (IOCPARM_LEN(cmd)) {
1741         case sizeof(irteup->irte):
1742                 return (irteup->irte.data);
1743 #ifdef COMPAT_FREEBSD32
1744         case sizeof(irteup->irte32):
1745                 return ((struct cd_toc_entry *)(uintptr_t)irteup->irte32.data);
1746 #endif
1747         default:
1748                 panic("Unhandled ioctl command %ld", cmd);
1749         }
1750 }
1751
1752 static int
1753 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td)
1754 {
1755
1756         struct  cam_periph *periph;
1757         struct  cd_softc *softc;
1758         int     error = 0;
1759
1760         periph = (struct cam_periph *)dp->d_drv1;
1761         cam_periph_lock(periph);
1762
1763         softc = (struct cd_softc *)periph->softc;
1764
1765         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1766             ("cdioctl(%#lx)\n", cmd));
1767
1768         if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
1769                 cam_periph_unlock(periph);
1770                 cam_periph_release(periph);
1771                 return (error);
1772         }
1773
1774         /*
1775          * If we don't have media loaded, check for it.  If still don't
1776          * have media loaded, we can only do a load or eject.
1777          *
1778          * We only care whether media is loaded if this is a cd-specific ioctl
1779          * (thus the IOCGROUP check below).  Note that this will break if
1780          * anyone adds any ioctls into the switch statement below that don't
1781          * have their ioctl group set to 'c'.
1782          */
1783         if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
1784          && ((cmd != CDIOCCLOSE)
1785           && (cmd != CDIOCEJECT))
1786          && (IOCGROUP(cmd) == 'c')) {
1787                 error = cdcheckmedia(periph, /*do_wait*/ 1);
1788                 if (error != 0) {
1789                         cam_periph_unhold(periph);
1790                         cam_periph_unlock(periph);
1791                         return (error);
1792                 }
1793         }
1794         /*
1795          * Drop the lock here so later mallocs can use WAITOK.  The periph
1796          * is essentially locked still with the cam_periph_hold call above.
1797          */
1798         cam_periph_unlock(periph);
1799
1800         switch (cmd) {
1801         case CDIOCPLAYTRACKS:
1802                 {
1803                         struct ioc_play_track *args
1804                             = (struct ioc_play_track *) addr;
1805                         struct cd_mode_params params;
1806                         union cd_pages *page;
1807
1808                         params.alloc_len = sizeof(union cd_mode_data_6_10);
1809                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1810                                                  M_WAITOK | M_ZERO);
1811
1812                         cam_periph_lock(periph);
1813                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1814                                   ("trying to do CDIOCPLAYTRACKS\n"));
1815
1816                         error = cdgetmode(periph, &params, AUDIO_PAGE);
1817                         if (error) {
1818                                 free(params.mode_buf, M_SCSICD);
1819                                 cam_periph_unlock(periph);
1820                                 break;
1821                         }
1822                         page = cdgetpage(&params);
1823
1824                         page->audio.flags &= ~CD_PA_SOTC;
1825                         page->audio.flags |= CD_PA_IMMED;
1826                         error = cdsetmode(periph, &params);
1827                         free(params.mode_buf, M_SCSICD);
1828                         if (error) {
1829                                 cam_periph_unlock(periph);
1830                                 break;
1831                         }
1832
1833                         /*
1834                          * This was originally implemented with the PLAY
1835                          * AUDIO TRACK INDEX command, but that command was
1836                          * deprecated after SCSI-2.  Most (all?) SCSI CDROM
1837                          * drives support it but ATAPI and ATAPI-derivative
1838                          * drives don't seem to support it.  So we keep a
1839                          * cache of the table of contents and translate
1840                          * track numbers to MSF format.
1841                          */
1842                         if (softc->flags & CD_FLAG_VALID_TOC) {
1843                                 union msf_lba *sentry, *eentry;
1844                                 struct ioc_toc_header *th;
1845                                 int st, et;
1846
1847                                 th = &softc->toc.header;
1848                                 if (args->end_track < th->ending_track + 1)
1849                                         args->end_track++;
1850                                 if (args->end_track > th->ending_track + 1)
1851                                         args->end_track = th->ending_track + 1;
1852                                 st = args->start_track - th->starting_track;
1853                                 et = args->end_track - th->starting_track;
1854                                 if (st < 0 || et < 0 ||
1855                                     st > th->ending_track - th->starting_track ||
1856                                     et > th->ending_track - th->starting_track) {
1857                                         error = EINVAL;
1858                                         cam_periph_unlock(periph);
1859                                         break;
1860                                 }
1861                                 sentry = &softc->toc.entries[st].addr;
1862                                 eentry = &softc->toc.entries[et].addr;
1863                                 error = cdplaymsf(periph,
1864                                                   sentry->msf.minute,
1865                                                   sentry->msf.second,
1866                                                   sentry->msf.frame,
1867                                                   eentry->msf.minute,
1868                                                   eentry->msf.second,
1869                                                   eentry->msf.frame);
1870                         } else {
1871                                 /*
1872                                  * If we don't have a valid TOC, try the
1873                                  * play track index command.  It is part of
1874                                  * the SCSI-2 spec, but was removed in the
1875                                  * MMC specs.  ATAPI and ATAPI-derived
1876                                  * drives don't support it.
1877                                  */
1878                                 if (softc->quirks & CD_Q_BCD_TRACKS) {
1879                                         args->start_track =
1880                                                 bin2bcd(args->start_track);
1881                                         args->end_track =
1882                                                 bin2bcd(args->end_track);
1883                                 }
1884                                 error = cdplaytracks(periph,
1885                                                      args->start_track,
1886                                                      args->start_index,
1887                                                      args->end_track,
1888                                                      args->end_index);
1889                         }
1890                         cam_periph_unlock(periph);
1891                 }
1892                 break;
1893         case CDIOCPLAYMSF:
1894                 {
1895                         struct ioc_play_msf *args
1896                                 = (struct ioc_play_msf *) addr;
1897                         struct cd_mode_params params;
1898                         union cd_pages *page;
1899
1900                         params.alloc_len = sizeof(union cd_mode_data_6_10);
1901                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1902                                                  M_WAITOK | M_ZERO);
1903
1904                         cam_periph_lock(periph);
1905                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1906                                   ("trying to do CDIOCPLAYMSF\n"));
1907
1908                         error = cdgetmode(periph, &params, AUDIO_PAGE);
1909                         if (error) {
1910                                 free(params.mode_buf, M_SCSICD);
1911                                 cam_periph_unlock(periph);
1912                                 break;
1913                         }
1914                         page = cdgetpage(&params);
1915
1916                         page->audio.flags &= ~CD_PA_SOTC;
1917                         page->audio.flags |= CD_PA_IMMED;
1918                         error = cdsetmode(periph, &params);
1919                         free(params.mode_buf, M_SCSICD);
1920                         if (error) {
1921                                 cam_periph_unlock(periph);
1922                                 break;
1923                         }
1924                         error = cdplaymsf(periph,
1925                                           args->start_m,
1926                                           args->start_s,
1927                                           args->start_f,
1928                                           args->end_m,
1929                                           args->end_s,
1930                                           args->end_f);
1931                         cam_periph_unlock(periph);
1932                 }
1933                 break;
1934         case CDIOCPLAYBLOCKS:
1935                 {
1936                         struct ioc_play_blocks *args
1937                                 = (struct ioc_play_blocks *) addr;
1938                         struct cd_mode_params params;
1939                         union cd_pages *page;
1940
1941                         params.alloc_len = sizeof(union cd_mode_data_6_10);
1942                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1943                                                  M_WAITOK | M_ZERO);
1944
1945                         cam_periph_lock(periph);
1946                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1947                                   ("trying to do CDIOCPLAYBLOCKS\n"));
1948
1949                         error = cdgetmode(periph, &params, AUDIO_PAGE);
1950                         if (error) {
1951                                 free(params.mode_buf, M_SCSICD);
1952                                 cam_periph_unlock(periph);
1953                                 break;
1954                         }
1955                         page = cdgetpage(&params);
1956
1957                         page->audio.flags &= ~CD_PA_SOTC;
1958                         page->audio.flags |= CD_PA_IMMED;
1959                         error = cdsetmode(periph, &params);
1960                         free(params.mode_buf, M_SCSICD);
1961                         if (error) {
1962                                 cam_periph_unlock(periph);
1963                                 break;
1964                         }
1965                         error = cdplay(periph, args->blk, args->len);
1966                         cam_periph_unlock(periph);
1967                 }
1968                 break;
1969         case CDIOCREADSUBCHANNEL:
1970                 {
1971                         struct ioc_read_subchannel *args
1972                                 = (struct ioc_read_subchannel *) addr;
1973                         struct cd_sub_channel_info *data;
1974                         u_int32_t len = args->data_len;
1975
1976                         data = malloc(sizeof(struct cd_sub_channel_info),
1977                                       M_SCSICD, M_WAITOK | M_ZERO);
1978
1979                         cam_periph_lock(periph);
1980                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1981                                   ("trying to do CDIOCREADSUBCHANNEL\n"));
1982
1983                         if ((len > sizeof(struct cd_sub_channel_info)) ||
1984                             (len < sizeof(struct cd_sub_channel_header))) {
1985                                 printf(
1986                                         "scsi_cd: cdioctl: "
1987                                         "cdioreadsubchannel: error, len=%d\n",
1988                                         len);
1989                                 error = EINVAL;
1990                                 free(data, M_SCSICD);
1991                                 cam_periph_unlock(periph);
1992                                 break;
1993                         }
1994
1995                         if (softc->quirks & CD_Q_BCD_TRACKS)
1996                                 args->track = bin2bcd(args->track);
1997
1998                         error = cdreadsubchannel(periph, args->address_format,
1999                                 args->data_format, args->track, data, len);
2000
2001                         if (error) {
2002                                 free(data, M_SCSICD);
2003                                 cam_periph_unlock(periph);
2004                                 break;
2005                         }
2006                         if (softc->quirks & CD_Q_BCD_TRACKS)
2007                                 data->what.track_info.track_number =
2008                                     bcd2bin(data->what.track_info.track_number);
2009                         len = min(len, ((data->header.data_len[0] << 8) +
2010                                 data->header.data_len[1] +
2011                                 sizeof(struct cd_sub_channel_header)));
2012                         cam_periph_unlock(periph);
2013                         error = copyout(data, args->data, len);
2014                         free(data, M_SCSICD);
2015                 }
2016                 break;
2017
2018         case CDIOREADTOCHEADER:
2019                 {
2020                         struct ioc_toc_header *th;
2021
2022                         th = malloc(sizeof(struct ioc_toc_header), M_SCSICD,
2023                                     M_WAITOK | M_ZERO);
2024
2025                         cam_periph_lock(periph);
2026                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2027                                   ("trying to do CDIOREADTOCHEADER\n"));
2028
2029                         error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2030                                           sizeof (*th), /*sense_flags*/SF_NO_PRINT);
2031                         if (error) {
2032                                 free(th, M_SCSICD);
2033                                 cam_periph_unlock(periph);
2034                                 break;
2035                         }
2036                         if (softc->quirks & CD_Q_BCD_TRACKS) {
2037                                 /* we are going to have to convert the BCD
2038                                  * encoding on the cd to what is expected
2039                                  */
2040                                 th->starting_track =
2041                                         bcd2bin(th->starting_track);
2042                                 th->ending_track = bcd2bin(th->ending_track);
2043                         }
2044                         th->len = ntohs(th->len);
2045                         bcopy(th, addr, sizeof(*th));
2046                         free(th, M_SCSICD);
2047                         cam_periph_unlock(periph);
2048                 }
2049                 break;
2050         case CDIOREADTOCENTRYS:
2051 #ifdef COMPAT_FREEBSD32
2052         case CDIOREADTOCENTRYS_32:
2053 #endif
2054                 {
2055                         struct cd_tocdata *data;
2056                         struct cd_toc_single *lead;
2057                         struct ioc_read_toc_entry *te =
2058                                 (struct ioc_read_toc_entry *) addr;
2059                         struct ioc_toc_header *th;
2060                         u_int32_t len, readlen, idx, num;
2061                         u_int32_t starting_track = te->starting_track;
2062
2063                         data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
2064                         lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO);
2065
2066                         cam_periph_lock(periph);
2067                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2068                                   ("trying to do CDIOREADTOCENTRYS\n"));
2069
2070                         if (te->data_len < sizeof(struct cd_toc_entry)
2071                          || (te->data_len % sizeof(struct cd_toc_entry)) != 0
2072                          || (te->address_format != CD_MSF_FORMAT
2073                           && te->address_format != CD_LBA_FORMAT)) {
2074                                 error = EINVAL;
2075                                 printf("scsi_cd: error in readtocentries, "
2076                                        "returning EINVAL\n");
2077                                 free(data, M_SCSICD);
2078                                 free(lead, M_SCSICD);
2079                                 cam_periph_unlock(periph);
2080                                 break;
2081                         }
2082
2083                         th = &data->header;
2084                         error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2085                                           sizeof (*th), /*sense_flags*/0);
2086                         if (error) {
2087                                 free(data, M_SCSICD);
2088                                 free(lead, M_SCSICD);
2089                                 cam_periph_unlock(periph);
2090                                 break;
2091                         }
2092
2093                         if (softc->quirks & CD_Q_BCD_TRACKS) {
2094                                 /* we are going to have to convert the BCD
2095                                  * encoding on the cd to what is expected
2096                                  */
2097                                 th->starting_track =
2098                                     bcd2bin(th->starting_track);
2099                                 th->ending_track = bcd2bin(th->ending_track);
2100                         }
2101
2102                         if (starting_track == 0)
2103                                 starting_track = th->starting_track;
2104                         else if (starting_track == LEADOUT)
2105                                 starting_track = th->ending_track + 1;
2106                         else if (starting_track < th->starting_track ||
2107                                  starting_track > th->ending_track + 1) {
2108                                 printf("scsi_cd: error in readtocentries, "
2109                                        "returning EINVAL\n");
2110                                 free(data, M_SCSICD);
2111                                 free(lead, M_SCSICD);
2112                                 cam_periph_unlock(periph);
2113                                 error = EINVAL;
2114                                 break;
2115                         }
2116
2117                         /* calculate reading length without leadout entry */
2118                         readlen = (th->ending_track - starting_track + 1) *
2119                                   sizeof(struct cd_toc_entry);
2120
2121                         /* and with leadout entry */
2122                         len = readlen + sizeof(struct cd_toc_entry);
2123                         if (te->data_len < len) {
2124                                 len = te->data_len;
2125                                 if (readlen > len)
2126                                         readlen = len;
2127                         }
2128                         if (len > sizeof(data->entries)) {
2129                                 printf("scsi_cd: error in readtocentries, "
2130                                        "returning EINVAL\n");
2131                                 error = EINVAL;
2132                                 free(data, M_SCSICD);
2133                                 free(lead, M_SCSICD);
2134                                 cam_periph_unlock(periph);
2135                                 break;
2136                         }
2137                         num = len / sizeof(struct cd_toc_entry);
2138
2139                         if (readlen > 0) {
2140                                 error = cdreadtoc(periph, te->address_format,
2141                                                   starting_track,
2142                                                   (u_int8_t *)data,
2143                                                   readlen + sizeof (*th),
2144                                                   /*sense_flags*/0);
2145                                 if (error) {
2146                                         free(data, M_SCSICD);
2147                                         free(lead, M_SCSICD);
2148                                         cam_periph_unlock(periph);
2149                                         break;
2150                                 }
2151                         }
2152
2153                         /* make leadout entry if needed */
2154                         idx = starting_track + num - 1;
2155                         if (softc->quirks & CD_Q_BCD_TRACKS)
2156                                 th->ending_track = bcd2bin(th->ending_track);
2157                         if (idx == th->ending_track + 1) {
2158                                 error = cdreadtoc(periph, te->address_format,
2159                                                   LEADOUT, (u_int8_t *)lead,
2160                                                   sizeof(*lead),
2161                                                   /*sense_flags*/0);
2162                                 if (error) {
2163                                         free(data, M_SCSICD);
2164                                         free(lead, M_SCSICD);
2165                                         cam_periph_unlock(periph);
2166                                         break;
2167                                 }
2168                                 data->entries[idx - starting_track] =
2169                                         lead->entry;
2170                         }
2171                         if (softc->quirks & CD_Q_BCD_TRACKS) {
2172                                 for (idx = 0; idx < num - 1; idx++) {
2173                                         data->entries[idx].track =
2174                                             bcd2bin(data->entries[idx].track);
2175                                 }
2176                         }
2177
2178                         cam_periph_unlock(periph);
2179                         error = copyout(data->entries, te_data_get_ptr(te, cmd),
2180                             len);
2181                         free(data, M_SCSICD);
2182                         free(lead, M_SCSICD);
2183                 }
2184                 break;
2185         case CDIOREADTOCENTRY:
2186                 {
2187                         struct cd_toc_single *data;
2188                         struct ioc_read_toc_single_entry *te =
2189                                 (struct ioc_read_toc_single_entry *) addr;
2190                         struct ioc_toc_header *th;
2191                         u_int32_t track;
2192
2193                         data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
2194
2195                         cam_periph_lock(periph);
2196                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2197                                   ("trying to do CDIOREADTOCENTRY\n"));
2198
2199                         if (te->address_format != CD_MSF_FORMAT
2200                             && te->address_format != CD_LBA_FORMAT) {
2201                                 printf("error in readtocentry, "
2202                                        " returning EINVAL\n");
2203                                 free(data, M_SCSICD);
2204                                 error = EINVAL;
2205                                 cam_periph_unlock(periph);
2206                                 break;
2207                         }
2208
2209                         th = &data->header;
2210                         error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2211                                           sizeof (*th), /*sense_flags*/0);
2212                         if (error) {
2213                                 free(data, M_SCSICD);
2214                                 cam_periph_unlock(periph);
2215                                 break;
2216                         }
2217
2218                         if (softc->quirks & CD_Q_BCD_TRACKS) {
2219                                 /* we are going to have to convert the BCD
2220                                  * encoding on the cd to what is expected
2221                                  */
2222                                 th->starting_track =
2223                                     bcd2bin(th->starting_track);
2224                                 th->ending_track = bcd2bin(th->ending_track);
2225                         }
2226                         track = te->track;
2227                         if (track == 0)
2228                                 track = th->starting_track;
2229                         else if (track == LEADOUT)
2230                                 /* OK */;
2231                         else if (track < th->starting_track ||
2232                                  track > th->ending_track + 1) {
2233                                 printf("error in readtocentry, "
2234                                        " returning EINVAL\n");
2235                                 free(data, M_SCSICD);
2236                                 error = EINVAL;
2237                                 cam_periph_unlock(periph);
2238                                 break;
2239                         }
2240
2241                         error = cdreadtoc(periph, te->address_format, track,
2242                                           (u_int8_t *)data, sizeof(*data),
2243                                           /*sense_flags*/0);
2244                         if (error) {
2245                                 free(data, M_SCSICD);
2246                                 cam_periph_unlock(periph);
2247                                 break;
2248                         }
2249
2250                         if (softc->quirks & CD_Q_BCD_TRACKS)
2251                                 data->entry.track = bcd2bin(data->entry.track);
2252                         bcopy(&data->entry, &te->entry,
2253                               sizeof(struct cd_toc_entry));
2254                         free(data, M_SCSICD);
2255                         cam_periph_unlock(periph);
2256                 }
2257                 break;
2258         case CDIOCSETPATCH:
2259                 {
2260                         struct ioc_patch *arg = (struct ioc_patch *)addr;
2261                         struct cd_mode_params params;
2262                         union cd_pages *page;
2263
2264                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2265                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2266                                                  M_WAITOK | M_ZERO);
2267
2268                         cam_periph_lock(periph);
2269                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2270                                   ("trying to do CDIOCSETPATCH\n"));
2271
2272                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2273                         if (error) {
2274                                 free(params.mode_buf, M_SCSICD);
2275                                 cam_periph_unlock(periph);
2276                                 break;
2277                         }
2278                         page = cdgetpage(&params);
2279
2280                         page->audio.port[LEFT_PORT].channels =
2281                                 arg->patch[0];
2282                         page->audio.port[RIGHT_PORT].channels =
2283                                 arg->patch[1];
2284                         page->audio.port[2].channels = arg->patch[2];
2285                         page->audio.port[3].channels = arg->patch[3];
2286                         error = cdsetmode(periph, &params);
2287                         free(params.mode_buf, M_SCSICD);
2288                         cam_periph_unlock(periph);
2289                 }
2290                 break;
2291         case CDIOCGETVOL:
2292                 {
2293                         struct ioc_vol *arg = (struct ioc_vol *) addr;
2294                         struct cd_mode_params params;
2295                         union cd_pages *page;
2296
2297                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2298                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2299                                                  M_WAITOK | M_ZERO);
2300
2301                         cam_periph_lock(periph);
2302                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2303                                   ("trying to do CDIOCGETVOL\n"));
2304
2305                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2306                         if (error) {
2307                                 free(params.mode_buf, M_SCSICD);
2308                                 cam_periph_unlock(periph);
2309                                 break;
2310                         }
2311                         page = cdgetpage(&params);
2312
2313                         arg->vol[LEFT_PORT] =
2314                                 page->audio.port[LEFT_PORT].volume;
2315                         arg->vol[RIGHT_PORT] =
2316                                 page->audio.port[RIGHT_PORT].volume;
2317                         arg->vol[2] = page->audio.port[2].volume;
2318                         arg->vol[3] = page->audio.port[3].volume;
2319                         free(params.mode_buf, M_SCSICD);
2320                         cam_periph_unlock(periph);
2321                 }
2322                 break;
2323         case CDIOCSETVOL:
2324                 {
2325                         struct ioc_vol *arg = (struct ioc_vol *) addr;
2326                         struct cd_mode_params params;
2327                         union cd_pages *page;
2328
2329                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2330                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2331                                                  M_WAITOK | M_ZERO);
2332
2333                         cam_periph_lock(periph);
2334                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2335                                   ("trying to do CDIOCSETVOL\n"));
2336
2337                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2338                         if (error) {
2339                                 free(params.mode_buf, M_SCSICD);
2340                                 cam_periph_unlock(periph);
2341                                 break;
2342                         }
2343                         page = cdgetpage(&params);
2344
2345                         page->audio.port[LEFT_PORT].channels = CHANNEL_0;
2346                         page->audio.port[LEFT_PORT].volume =
2347                                 arg->vol[LEFT_PORT];
2348                         page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
2349                         page->audio.port[RIGHT_PORT].volume =
2350                                 arg->vol[RIGHT_PORT];
2351                         page->audio.port[2].volume = arg->vol[2];
2352                         page->audio.port[3].volume = arg->vol[3];
2353                         error = cdsetmode(periph, &params);
2354                         cam_periph_unlock(periph);
2355                         free(params.mode_buf, M_SCSICD);
2356                 }
2357                 break;
2358         case CDIOCSETMONO:
2359                 {
2360                         struct cd_mode_params params;
2361                         union cd_pages *page;
2362
2363                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2364                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2365                                                  M_WAITOK | M_ZERO);
2366
2367                         cam_periph_lock(periph);
2368                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2369                                   ("trying to do CDIOCSETMONO\n"));
2370
2371                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2372                         if (error) {
2373                                 free(params.mode_buf, M_SCSICD);
2374                                 cam_periph_unlock(periph);
2375                                 break;
2376                         }
2377                         page = cdgetpage(&params);
2378
2379                         page->audio.port[LEFT_PORT].channels =
2380                                 LEFT_CHANNEL | RIGHT_CHANNEL;
2381                         page->audio.port[RIGHT_PORT].channels =
2382                                 LEFT_CHANNEL | RIGHT_CHANNEL;
2383                         page->audio.port[2].channels = 0;
2384                         page->audio.port[3].channels = 0;
2385                         error = cdsetmode(periph, &params);
2386                         cam_periph_unlock(periph);
2387                         free(params.mode_buf, M_SCSICD);
2388                 }
2389                 break;
2390         case CDIOCSETSTEREO:
2391                 {
2392                         struct cd_mode_params params;
2393                         union cd_pages *page;
2394
2395                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2396                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2397                                                  M_WAITOK | M_ZERO);
2398
2399                         cam_periph_lock(periph);
2400                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2401                                   ("trying to do CDIOCSETSTEREO\n"));
2402
2403                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2404                         if (error) {
2405                                 free(params.mode_buf, M_SCSICD);
2406                                 cam_periph_unlock(periph);
2407                                 break;
2408                         }
2409                         page = cdgetpage(&params);
2410
2411                         page->audio.port[LEFT_PORT].channels =
2412                                 LEFT_CHANNEL;
2413                         page->audio.port[RIGHT_PORT].channels =
2414                                 RIGHT_CHANNEL;
2415                         page->audio.port[2].channels = 0;
2416                         page->audio.port[3].channels = 0;
2417                         error = cdsetmode(periph, &params);
2418                         free(params.mode_buf, M_SCSICD);
2419                         cam_periph_unlock(periph);
2420                 }
2421                 break;
2422         case CDIOCSETMUTE:
2423                 {
2424                         struct cd_mode_params params;
2425                         union cd_pages *page;
2426
2427                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2428                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2429                                                  M_WAITOK | M_ZERO);
2430
2431                         cam_periph_lock(periph);
2432                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2433                                   ("trying to do CDIOCSETMUTE\n"));
2434
2435                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2436                         if (error) {
2437                                 free(params.mode_buf, M_SCSICD);
2438                                 cam_periph_unlock(periph);
2439                                 break;
2440                         }
2441                         page = cdgetpage(&params);
2442
2443                         page->audio.port[LEFT_PORT].channels = 0;
2444                         page->audio.port[RIGHT_PORT].channels = 0;
2445                         page->audio.port[2].channels = 0;
2446                         page->audio.port[3].channels = 0;
2447                         error = cdsetmode(periph, &params);
2448                         free(params.mode_buf, M_SCSICD);
2449                         cam_periph_unlock(periph);
2450                 }
2451                 break;
2452         case CDIOCSETLEFT:
2453                 {
2454                         struct cd_mode_params params;
2455                         union cd_pages *page;
2456
2457                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2458                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2459                                                  M_WAITOK | M_ZERO);
2460
2461                         cam_periph_lock(periph);
2462                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2463                                   ("trying to do CDIOCSETLEFT\n"));
2464
2465                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2466                         if (error) {
2467                                 free(params.mode_buf, M_SCSICD);
2468                                 cam_periph_unlock(periph);
2469                                 break;
2470                         }
2471                         page = cdgetpage(&params);
2472
2473                         page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
2474                         page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
2475                         page->audio.port[2].channels = 0;
2476                         page->audio.port[3].channels = 0;
2477                         error = cdsetmode(periph, &params);
2478                         free(params.mode_buf, M_SCSICD);
2479                         cam_periph_unlock(periph);
2480                 }
2481                 break;
2482         case CDIOCSETRIGHT:
2483                 {
2484                         struct cd_mode_params params;
2485                         union cd_pages *page;
2486
2487                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2488                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2489                                                  M_WAITOK | M_ZERO);
2490
2491                         cam_periph_lock(periph);
2492                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2493                                   ("trying to do CDIOCSETRIGHT\n"));
2494
2495                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2496                         if (error) {
2497                                 free(params.mode_buf, M_SCSICD);
2498                                 cam_periph_unlock(periph);
2499                                 break;
2500                         }
2501                         page = cdgetpage(&params);
2502
2503                         page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
2504                         page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
2505                         page->audio.port[2].channels = 0;
2506                         page->audio.port[3].channels = 0;
2507                         error = cdsetmode(periph, &params);
2508                         free(params.mode_buf, M_SCSICD);
2509                         cam_periph_unlock(periph);
2510                 }
2511                 break;
2512         case CDIOCRESUME:
2513                 cam_periph_lock(periph);
2514                 error = cdpause(periph, 1);
2515                 cam_periph_unlock(periph);
2516                 break;
2517         case CDIOCPAUSE:
2518                 cam_periph_lock(periph);
2519                 error = cdpause(periph, 0);
2520                 cam_periph_unlock(periph);
2521                 break;
2522         case CDIOCSTART:
2523                 cam_periph_lock(periph);
2524                 error = cdstartunit(periph, 0);
2525                 cam_periph_unlock(periph);
2526                 break;
2527         case CDIOCCLOSE:
2528                 cam_periph_lock(periph);
2529                 error = cdstartunit(periph, 1);
2530                 cam_periph_unlock(periph);
2531                 break;
2532         case CDIOCSTOP:
2533                 cam_periph_lock(periph);
2534                 error = cdstopunit(periph, 0);
2535                 cam_periph_unlock(periph);
2536                 break;
2537         case CDIOCEJECT:
2538                 cam_periph_lock(periph);
2539                 error = cdstopunit(periph, 1);
2540                 cam_periph_unlock(periph);
2541                 break;
2542         case CDIOCALLOW:
2543                 cam_periph_lock(periph);
2544                 cdprevent(periph, PR_ALLOW);
2545                 cam_periph_unlock(periph);
2546                 break;
2547         case CDIOCPREVENT:
2548                 cam_periph_lock(periph);
2549                 cdprevent(periph, PR_PREVENT);
2550                 cam_periph_unlock(periph);
2551                 break;
2552         case CDIOCSETDEBUG:
2553                 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
2554                 error = ENOTTY;
2555                 break;
2556         case CDIOCCLRDEBUG:
2557                 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
2558                 error = ENOTTY;
2559                 break;
2560         case CDIOCRESET:
2561                 /* return (cd_reset(periph)); */
2562                 error = ENOTTY;
2563                 break;
2564         case CDRIOCREADSPEED:
2565                 cam_periph_lock(periph);
2566                 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
2567                 cam_periph_unlock(periph);
2568                 break;
2569         case CDRIOCWRITESPEED:
2570                 cam_periph_lock(periph);
2571                 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
2572                 cam_periph_unlock(periph);
2573                 break;
2574         case CDRIOCGETBLOCKSIZE:
2575                 *(int *)addr = softc->params.blksize;
2576                 break;
2577         case CDRIOCSETBLOCKSIZE:
2578                 if (*(int *)addr <= 0) {
2579                         error = EINVAL;
2580                         break;
2581                 }
2582                 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr;
2583                 break;
2584         case DVDIOCSENDKEY:
2585         case DVDIOCREPORTKEY: {
2586                 struct dvd_authinfo *authinfo;
2587
2588                 authinfo = (struct dvd_authinfo *)addr;
2589
2590                 if (cmd == DVDIOCREPORTKEY)
2591                         error = cdreportkey(periph, authinfo);
2592                 else
2593                         error = cdsendkey(periph, authinfo);
2594                 break;
2595                 }
2596         case DVDIOCREADSTRUCTURE: {
2597                 struct dvd_struct *dvdstruct;
2598
2599                 dvdstruct = (struct dvd_struct *)addr;
2600
2601                 error = cdreaddvdstructure(periph, dvdstruct);
2602
2603                 break;
2604         }
2605         default:
2606                 cam_periph_lock(periph);
2607                 error = cam_periph_ioctl(periph, cmd, addr, cderror);
2608                 cam_periph_unlock(periph);
2609                 break;
2610         }
2611
2612         cam_periph_lock(periph);
2613         cam_periph_unhold(periph);
2614
2615         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
2616         if (error && bootverbose) {
2617                 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error);
2618         }
2619         cam_periph_unlock(periph);
2620
2621         return (error);
2622 }
2623
2624 static void
2625 cdprevent(struct cam_periph *periph, int action)
2626 {
2627         union   ccb *ccb;
2628         struct  cd_softc *softc;
2629         int     error;
2630
2631         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
2632
2633         cam_periph_assert(periph, MA_OWNED);
2634         softc = (struct cd_softc *)periph->softc;
2635
2636         if (((action == PR_ALLOW)
2637           && (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
2638          || ((action == PR_PREVENT)
2639           && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
2640                 return;
2641         }
2642
2643         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2644
2645         scsi_prevent(&ccb->csio,
2646                      /*retries*/ cd_retry_count,
2647                      /*cbfcnp*/NULL,
2648                      MSG_SIMPLE_Q_TAG,
2649                      action,
2650                      SSD_FULL_SIZE,
2651                      /* timeout */60000);
2652
2653         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2654                         /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2655
2656         xpt_release_ccb(ccb);
2657
2658         if (error == 0) {
2659                 if (action == PR_ALLOW)
2660                         softc->flags &= ~CD_FLAG_DISC_LOCKED;
2661                 else
2662                         softc->flags |= CD_FLAG_DISC_LOCKED;
2663         }
2664 }
2665
2666 static void
2667 cdmediaprobedone(struct cam_periph *periph)
2668 {
2669         struct cd_softc *softc;
2670
2671         cam_periph_assert(periph, MA_OWNED);
2672         softc = (struct cd_softc *)periph->softc;
2673
2674         softc->flags &= ~CD_FLAG_MEDIA_SCAN_ACT;
2675
2676         if ((softc->flags & CD_FLAG_MEDIA_WAIT) != 0) {
2677                 softc->flags &= ~CD_FLAG_MEDIA_WAIT;
2678                 wakeup(&softc->toc);
2679         }
2680 }
2681
2682 /*
2683  * XXX: the disk media and sector size is only really able to change
2684  * XXX: while the device is closed.
2685  */
2686
2687 static int
2688 cdcheckmedia(struct cam_periph *periph, int do_wait)
2689 {
2690         struct cd_softc *softc;
2691         int error;
2692
2693         cam_periph_assert(periph, MA_OWNED);
2694         softc = (struct cd_softc *)periph->softc;
2695         error = 0;
2696
2697         if ((do_wait != 0)
2698          && ((softc->flags & CD_FLAG_MEDIA_WAIT) == 0)) {
2699                 softc->flags |= CD_FLAG_MEDIA_WAIT;
2700         }
2701         if ((softc->flags & CD_FLAG_MEDIA_SCAN_ACT) == 0) {
2702                 softc->state = CD_STATE_MEDIA_PREVENT;
2703                 softc->flags |= CD_FLAG_MEDIA_SCAN_ACT;
2704                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
2705         }
2706
2707         if (do_wait == 0)
2708                 goto bailout;
2709
2710         error = msleep(&softc->toc, cam_periph_mtx(periph), PRIBIO,"cdmedia",0);
2711
2712         if (error != 0)
2713                 goto bailout;
2714
2715         /*
2716          * Check to see whether we have a valid size from the media.  We
2717          * may or may not have a valid TOC.
2718          */
2719         if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
2720                 error = EINVAL;
2721 bailout:
2722
2723         return (error);
2724 }
2725
2726 #if 0
2727 static int
2728 cdcheckmedia(struct cam_periph *periph)
2729 {
2730         struct cd_softc *softc;
2731         struct ioc_toc_header *toch;
2732         struct cd_toc_single leadout;
2733         u_int32_t size, toclen;
2734         int error, num_entries, cdindex;
2735
2736         softc = (struct cd_softc *)periph->softc;
2737
2738         cdprevent(periph, PR_PREVENT);
2739         softc->disk->d_sectorsize = 2048;
2740         softc->disk->d_mediasize = 0;
2741
2742         /*
2743          * Get the disc size and block size.  If we can't get it, we don't
2744          * have media, most likely.
2745          */
2746         if ((error = cdsize(periph, &size)) != 0) {
2747                 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
2748                 cdprevent(periph, PR_ALLOW);
2749                 return (error);
2750         } else {
2751                 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
2752                 softc->disk->d_sectorsize = softc->params.blksize;
2753                 softc->disk->d_mediasize =
2754                     (off_t)softc->params.blksize * softc->params.disksize;
2755         }
2756
2757         /*
2758          * Now we check the table of contents.  This (currently) is only
2759          * used for the CDIOCPLAYTRACKS ioctl.  It may be used later to do
2760          * things like present a separate entry in /dev for each track,
2761          * like that acd(4) driver does.
2762          */
2763         bzero(&softc->toc, sizeof(softc->toc));
2764         toch = &softc->toc.header;
2765         /*
2766          * We will get errors here for media that doesn't have a table of
2767          * contents.  According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
2768          * command is presented for a DDCD/CD-R/RW media, where the first TOC
2769          * has not been recorded (no complete session) and the Format codes
2770          * 0000b, 0001b, or 0010b are specified, this command shall be rejected
2771          * with an INVALID FIELD IN CDB.  Devices that are not capable of
2772          * reading an incomplete session on DDC/CD-R/RW media shall report
2773          * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
2774          *
2775          * So this isn't fatal if we can't read the table of contents, it
2776          * just means that the user won't be able to issue the play tracks
2777          * ioctl, and likely lots of other stuff won't work either.  They
2778          * need to burn the CD before we can do a whole lot with it.  So
2779          * we don't print anything here if we get an error back.
2780          */
2781         error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
2782                           SF_NO_PRINT);
2783         /*
2784          * Errors in reading the table of contents aren't fatal, we just
2785          * won't have a valid table of contents cached.
2786          */
2787         if (error != 0) {
2788                 error = 0;
2789                 bzero(&softc->toc, sizeof(softc->toc));
2790                 goto bailout;
2791         }
2792
2793         if (softc->quirks & CD_Q_BCD_TRACKS) {
2794                 toch->starting_track = bcd2bin(toch->starting_track);
2795                 toch->ending_track = bcd2bin(toch->ending_track);
2796         }
2797
2798         /* Number of TOC entries, plus leadout */
2799         num_entries = (toch->ending_track - toch->starting_track) + 2;
2800
2801         if (num_entries <= 0)
2802                 goto bailout;
2803
2804         toclen = num_entries * sizeof(struct cd_toc_entry);
2805
2806         error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
2807                           (u_int8_t *)&softc->toc, toclen + sizeof(*toch),
2808                           SF_NO_PRINT);
2809         if (error != 0) {
2810                 error = 0;
2811                 bzero(&softc->toc, sizeof(softc->toc));
2812                 goto bailout;
2813         }
2814
2815         if (softc->quirks & CD_Q_BCD_TRACKS) {
2816                 toch->starting_track = bcd2bin(toch->starting_track);
2817                 toch->ending_track = bcd2bin(toch->ending_track);
2818         }
2819         /*
2820          * XXX KDM is this necessary?  Probably only if the drive doesn't
2821          * return leadout information with the table of contents.
2822          */
2823         cdindex = toch->starting_track + num_entries -1;
2824         if (cdindex == toch->ending_track + 1) {
2825                 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
2826                                   (u_int8_t *)&leadout, sizeof(leadout),
2827                                   SF_NO_PRINT);
2828                 if (error != 0) {
2829                         error = 0;
2830                         goto bailout;
2831                 }
2832                 softc->toc.entries[cdindex - toch->starting_track] =
2833                         leadout.entry;
2834         }
2835         if (softc->quirks & CD_Q_BCD_TRACKS) {
2836                 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) {
2837                         softc->toc.entries[cdindex].track =
2838                                 bcd2bin(softc->toc.entries[cdindex].track);
2839                 }
2840         }
2841
2842         softc->flags |= CD_FLAG_VALID_TOC;
2843
2844         /* If the first track is audio, correct sector size. */
2845         if ((softc->toc.entries[0].control & 4) == 0) {
2846                 softc->disk->d_sectorsize = softc->params.blksize = 2352;
2847                 softc->disk->d_mediasize =
2848                     (off_t)softc->params.blksize * softc->params.disksize;
2849         }
2850
2851 bailout:
2852
2853         /*
2854          * We unconditionally (re)set the blocksize each time the
2855          * CD device is opened.  This is because the CD can change,
2856          * and therefore the blocksize might change.
2857          * XXX problems here if some slice or partition is still
2858          * open with the old size?
2859          */
2860         if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0)
2861                 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
2862         softc->disk->d_devstat->block_size = softc->params.blksize;
2863
2864         return (error);
2865 }
2866
2867 static int
2868 cdsize(struct cam_periph *periph, u_int32_t *size)
2869 {
2870         struct cd_softc *softc;
2871         union ccb *ccb;
2872         struct scsi_read_capacity_data *rcap_buf;
2873         int error;
2874
2875         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
2876
2877         softc = (struct cd_softc *)periph->softc;
2878
2879         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2880
2881         /* XXX Should be M_WAITOK */
2882         rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
2883                           M_SCSICD, M_NOWAIT | M_ZERO);
2884         if (rcap_buf == NULL)
2885                 return (ENOMEM);
2886
2887         scsi_read_capacity(&ccb->csio,
2888                            /*retries*/ cd_retry_count,
2889                            /*cbfcnp*/NULL,
2890                            MSG_SIMPLE_Q_TAG,
2891                            rcap_buf,
2892                            SSD_FULL_SIZE,
2893                            /* timeout */20000);
2894
2895         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2896                          /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2897
2898         xpt_release_ccb(ccb);
2899
2900         softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
2901         softc->params.blksize  = scsi_4btoul(rcap_buf->length);
2902         /* Make sure we got at least some block size. */
2903         if (error == 0 && softc->params.blksize == 0)
2904                 error = EIO;
2905         /*
2906          * SCSI-3 mandates that the reported blocksize shall be 2048.
2907          * Older drives sometimes report funny values, trim it down to
2908          * 2048, or other parts of the kernel will get confused.
2909          *
2910          * XXX we leave drives alone that might report 512 bytes, as
2911          * well as drives reporting more weird sizes like perhaps 4K.
2912          */
2913         if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
2914                 softc->params.blksize = 2048;
2915
2916         free(rcap_buf, M_SCSICD);
2917         *size = softc->params.disksize;
2918
2919         return (error);
2920
2921 }
2922 #endif
2923
2924 static int
2925 cd6byteworkaround(union ccb *ccb)
2926 {
2927         u_int8_t *cdb;
2928         struct cam_periph *periph;
2929         struct cd_softc *softc;
2930         struct cd_mode_params *params;
2931         int frozen, found;
2932
2933         periph = xpt_path_periph(ccb->ccb_h.path);
2934         softc = (struct cd_softc *)periph->softc;
2935
2936         cdb = ccb->csio.cdb_io.cdb_bytes;
2937
2938         if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
2939          || ((cdb[0] != MODE_SENSE_6)
2940           && (cdb[0] != MODE_SELECT_6)))
2941                 return (0);
2942
2943         /*
2944          * Because there is no convenient place to stash the overall
2945          * cd_mode_params structure pointer, we have to grab it like this.
2946          * This means that ALL MODE_SENSE and MODE_SELECT requests in the
2947          * cd(4) driver MUST go through cdgetmode() and cdsetmode()!
2948          *
2949          * XXX It would be nice if, at some point, we could increase the
2950          * number of available peripheral private pointers.  Both pointers
2951          * are currently used in most every peripheral driver.
2952          */
2953         found = 0;
2954
2955         STAILQ_FOREACH(params, &softc->mode_queue, links) {
2956                 if (params->mode_buf == ccb->csio.data_ptr) {
2957                         found = 1;
2958                         break;
2959                 }
2960         }
2961
2962         /*
2963          * This shouldn't happen.  All mode sense and mode select
2964          * operations in the cd(4) driver MUST go through cdgetmode() and
2965          * cdsetmode()!
2966          */
2967         if (found == 0) {
2968                 xpt_print(periph->path,
2969                     "mode buffer not found in mode queue!\n");
2970                 return (0);
2971         }
2972
2973         params->cdb_size = 10;
2974         softc->minimum_command_size = 10;
2975         xpt_print(ccb->ccb_h.path,
2976             "%s(6) failed, increasing minimum CDB size to 10 bytes\n",
2977             (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
2978
2979         if (cdb[0] == MODE_SENSE_6) {
2980                 struct scsi_mode_sense_10 ms10;
2981                 struct scsi_mode_sense_6 *ms6;
2982                 int len;
2983
2984                 ms6 = (struct scsi_mode_sense_6 *)cdb;
2985
2986                 bzero(&ms10, sizeof(ms10));
2987                 ms10.opcode = MODE_SENSE_10;
2988                 ms10.byte2 = ms6->byte2;
2989                 ms10.page = ms6->page;
2990
2991                 /*
2992                  * 10 byte mode header, block descriptor,
2993                  * sizeof(union cd_pages)
2994                  */
2995                 len = sizeof(struct cd_mode_data_10);
2996                 ccb->csio.dxfer_len = len;
2997
2998                 scsi_ulto2b(len, ms10.length);
2999                 ms10.control = ms6->control;
3000                 bcopy(&ms10, cdb, 10);
3001                 ccb->csio.cdb_len = 10;
3002         } else {
3003                 struct scsi_mode_select_10 ms10;
3004                 struct scsi_mode_select_6 *ms6;
3005                 struct scsi_mode_header_6 *header6;
3006                 struct scsi_mode_header_10 *header10;
3007                 struct scsi_mode_page_header *page_header;
3008                 int blk_desc_len, page_num, page_size, len;
3009
3010                 ms6 = (struct scsi_mode_select_6 *)cdb;
3011
3012                 bzero(&ms10, sizeof(ms10));
3013                 ms10.opcode = MODE_SELECT_10;
3014                 ms10.byte2 = ms6->byte2;
3015
3016                 header6 = (struct scsi_mode_header_6 *)params->mode_buf;
3017                 header10 = (struct scsi_mode_header_10 *)params->mode_buf;
3018
3019                 page_header = find_mode_page_6(header6);
3020                 page_num = page_header->page_code;
3021
3022                 blk_desc_len = header6->blk_desc_len;
3023
3024                 page_size = cdgetpagesize(page_num);
3025
3026                 if (page_size != (page_header->page_length +
3027                     sizeof(*page_header)))
3028                         page_size = page_header->page_length +
3029                                 sizeof(*page_header);
3030
3031                 len = sizeof(*header10) + blk_desc_len + page_size;
3032
3033                 len = min(params->alloc_len, len);
3034
3035                 /*
3036                  * Since the 6 byte parameter header is shorter than the 10
3037                  * byte parameter header, we need to copy the actual mode
3038                  * page data, and the block descriptor, if any, so things wind
3039                  * up in the right place.  The regions will overlap, but
3040                  * bcopy() does the right thing.
3041                  */
3042                 bcopy(params->mode_buf + sizeof(*header6),
3043                       params->mode_buf + sizeof(*header10),
3044                       len - sizeof(*header10));
3045
3046                 /* Make sure these fields are set correctly. */
3047                 scsi_ulto2b(0, header10->data_length);
3048                 header10->medium_type = 0;
3049                 scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
3050
3051                 ccb->csio.dxfer_len = len;
3052
3053                 scsi_ulto2b(len, ms10.length);
3054                 ms10.control = ms6->control;
3055                 bcopy(&ms10, cdb, 10);
3056                 ccb->csio.cdb_len = 10;
3057         }
3058
3059         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
3060         ccb->ccb_h.status = CAM_REQUEUE_REQ;
3061         xpt_action(ccb);
3062         if (frozen) {
3063                 cam_release_devq(ccb->ccb_h.path,
3064                                  /*relsim_flags*/0,
3065                                  /*openings*/0,
3066                                  /*timeout*/0,
3067                                  /*getcount_only*/0);
3068         }
3069
3070         return (ERESTART);
3071 }
3072
3073 static int
3074 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3075 {
3076         struct cd_softc *softc;
3077         struct cam_periph *periph;
3078         int error, error_code, sense_key, asc, ascq;
3079
3080         periph = xpt_path_periph(ccb->ccb_h.path);
3081         softc = (struct cd_softc *)periph->softc;
3082
3083         cam_periph_assert(periph, MA_OWNED);
3084
3085         /*
3086          * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
3087          * CDB comes back with this particular error, try transforming it
3088          * into the 10 byte version.
3089          */
3090         error = 0;
3091         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3092                 error = cd6byteworkaround(ccb);
3093         } else if (scsi_extract_sense_ccb(ccb,
3094             &error_code, &sense_key, &asc, &ascq)) {
3095                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3096                         error = cd6byteworkaround(ccb);
3097                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3098                     asc == 0x28 && ascq == 0x00)
3099                         disk_media_changed(softc->disk, M_NOWAIT);
3100                 else if (sense_key == SSD_KEY_NOT_READY &&
3101                     asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) {
3102                         softc->flags &= ~CD_FLAG_SAW_MEDIA;
3103                         disk_media_gone(softc->disk, M_NOWAIT);
3104                 }
3105         }
3106
3107         if (error == ERESTART)
3108                 return (error);
3109
3110         /*
3111          * XXX
3112          * Until we have a better way of doing pack validation,
3113          * don't treat UAs as errors.
3114          */
3115         sense_flags |= SF_RETRY_UA;
3116
3117         if (softc->quirks & CD_Q_RETRY_BUSY)
3118                 sense_flags |= SF_RETRY_BUSY;
3119         return (cam_periph_error(ccb, cam_flags, sense_flags));
3120 }
3121
3122 static void
3123 cdmediapoll(void *arg)
3124 {
3125         struct cam_periph *periph = arg;
3126         struct cd_softc *softc = periph->softc;
3127
3128         if (softc->state == CD_STATE_NORMAL && !softc->tur &&
3129             softc->outstanding_cmds == 0) {
3130                 if (cam_periph_acquire(periph) == 0) {
3131                         softc->tur = 1;
3132                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
3133                 }
3134         }
3135
3136         /* Queue us up again */
3137         if (cd_poll_period != 0) {
3138                 callout_schedule_sbt(&softc->mediapoll_c,
3139                     cd_poll_period * SBT_1S, 0, C_PREL(1));
3140         }
3141 }
3142
3143 /*
3144  * Read table of contents
3145  */
3146 static int
3147 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
3148           u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
3149 {
3150         struct ccb_scsiio *csio;
3151         union ccb *ccb;
3152         int error;
3153
3154         error = 0;
3155
3156         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3157
3158         csio = &ccb->csio;
3159
3160         scsi_read_toc(csio,
3161                       /* retries */ cd_retry_count,
3162                       /* cbfcnp */ NULL,
3163                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3164                       /* byte1_flags */ (mode == CD_MSF_FORMAT) ? CD_MSF : 0,
3165                       /* format */ SRTOC_FORMAT_TOC,
3166                       /* track*/ start,
3167                       /* data_ptr */ data,
3168                       /* dxfer_len */ len,
3169                       /* sense_len */ SSD_FULL_SIZE,
3170                       /* timeout */ 50000);
3171
3172         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3173                          /*sense_flags*/SF_RETRY_UA | sense_flags);
3174
3175         xpt_release_ccb(ccb);
3176
3177         return(error);
3178 }
3179
3180 static int
3181 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
3182                  u_int32_t format, int track,
3183                  struct cd_sub_channel_info *data, u_int32_t len)
3184 {
3185         struct scsi_read_subchannel *scsi_cmd;
3186         struct ccb_scsiio *csio;
3187         union ccb *ccb;
3188         int error;
3189
3190         error = 0;
3191
3192         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3193
3194         csio = &ccb->csio;
3195
3196         cam_fill_csio(csio,
3197                       /* retries */ cd_retry_count,
3198                       /* cbfcnp */ NULL,
3199                       /* flags */ CAM_DIR_IN,
3200                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3201                       /* data_ptr */ (u_int8_t *)data,
3202                       /* dxfer_len */ len,
3203                       /* sense_len */ SSD_FULL_SIZE,
3204                       sizeof(struct scsi_read_subchannel),
3205                       /* timeout */ 50000);
3206
3207         scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
3208         bzero (scsi_cmd, sizeof(*scsi_cmd));
3209
3210         scsi_cmd->op_code = READ_SUBCHANNEL;
3211         if (mode == CD_MSF_FORMAT)
3212                 scsi_cmd->byte1 |= CD_MSF;
3213         scsi_cmd->byte2 = SRS_SUBQ;
3214         scsi_cmd->subchan_format = format;
3215         scsi_cmd->track = track;
3216         scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
3217         scsi_cmd->control = 0;
3218
3219         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3220                          /*sense_flags*/SF_RETRY_UA);
3221
3222         xpt_release_ccb(ccb);
3223
3224         return(error);
3225 }
3226
3227 /*
3228  * All MODE_SENSE requests in the cd(4) driver MUST go through this
3229  * routine.  See comments in cd6byteworkaround() for details.
3230  */
3231 static int
3232 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
3233           u_int32_t page)
3234 {
3235         struct ccb_scsiio *csio;
3236         struct cd_softc *softc;
3237         union ccb *ccb;
3238         int param_len;
3239         int error;
3240
3241         softc = (struct cd_softc *)periph->softc;
3242
3243         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3244
3245         csio = &ccb->csio;
3246
3247         data->cdb_size = softc->minimum_command_size;
3248         if (data->cdb_size < 10)
3249                 param_len = sizeof(struct cd_mode_data);
3250         else
3251                 param_len = sizeof(struct cd_mode_data_10);
3252
3253         /* Don't say we've got more room than we actually allocated */
3254         param_len = min(param_len, data->alloc_len);
3255
3256         scsi_mode_sense_len(csio,
3257                             /* retries */ cd_retry_count,
3258                             /* cbfcnp */ NULL,
3259                             /* tag_action */ MSG_SIMPLE_Q_TAG,
3260                             /* dbd */ 0,
3261                             /* page_code */ SMS_PAGE_CTRL_CURRENT,
3262                             /* page */ page,
3263                             /* param_buf */ data->mode_buf,
3264                             /* param_len */ param_len,
3265                             /* minimum_cmd_size */ softc->minimum_command_size,
3266                             /* sense_len */ SSD_FULL_SIZE,
3267                             /* timeout */ 50000);
3268
3269         /*
3270          * It would be nice not to have to do this, but there's no
3271          * available pointer in the CCB that would allow us to stuff the
3272          * mode params structure in there and retrieve it in
3273          * cd6byteworkaround(), so we can set the cdb size.  The cdb size
3274          * lets the caller know what CDB size we ended up using, so they
3275          * can find the actual mode page offset.
3276          */
3277         STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3278
3279         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3280                          /*sense_flags*/SF_RETRY_UA);
3281
3282         xpt_release_ccb(ccb);
3283
3284         STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3285
3286         /*
3287          * This is a bit of belt-and-suspenders checking, but if we run
3288          * into a situation where the target sends back multiple block
3289          * descriptors, we might not have enough space in the buffer to
3290          * see the whole mode page.  Better to return an error than
3291          * potentially access memory beyond our malloced region.
3292          */
3293         if (error == 0) {
3294                 u_int32_t data_len;
3295
3296                 if (data->cdb_size == 10) {
3297                         struct scsi_mode_header_10 *hdr10;
3298
3299                         hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
3300                         data_len = scsi_2btoul(hdr10->data_length);
3301                         data_len += sizeof(hdr10->data_length);
3302                 } else {
3303                         struct scsi_mode_header_6 *hdr6;
3304
3305                         hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
3306                         data_len = hdr6->data_length;
3307                         data_len += sizeof(hdr6->data_length);
3308                 }
3309
3310                 /*
3311                  * Complain if there is more mode data available than we
3312                  * allocated space for.  This could potentially happen if
3313                  * we miscalculated the page length for some reason, if the
3314                  * drive returns multiple block descriptors, or if it sets
3315                  * the data length incorrectly.
3316                  */
3317                 if (data_len > data->alloc_len) {
3318                         xpt_print(periph->path, "allocated modepage %d length "
3319                             "%d < returned length %d\n", page, data->alloc_len,
3320                             data_len);
3321                         error = ENOSPC;
3322                 }
3323         }
3324         return (error);
3325 }
3326
3327 /*
3328  * All MODE_SELECT requests in the cd(4) driver MUST go through this
3329  * routine.  See comments in cd6byteworkaround() for details.
3330  */
3331 static int
3332 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
3333 {
3334         struct ccb_scsiio *csio;
3335         struct cd_softc *softc;
3336         union ccb *ccb;
3337         int cdb_size, param_len;
3338         int error;
3339
3340         softc = (struct cd_softc *)periph->softc;
3341
3342         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3343
3344         csio = &ccb->csio;
3345
3346         error = 0;
3347
3348         /*
3349          * If the data is formatted for the 10 byte version of the mode
3350          * select parameter list, we need to use the 10 byte CDB.
3351          * Otherwise, we use whatever the stored minimum command size.
3352          */
3353         if (data->cdb_size == 10)
3354                 cdb_size = data->cdb_size;
3355         else
3356                 cdb_size = softc->minimum_command_size;
3357
3358         if (cdb_size >= 10) {
3359                 struct scsi_mode_header_10 *mode_header;
3360                 u_int32_t data_len;
3361
3362                 mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
3363
3364                 data_len = scsi_2btoul(mode_header->data_length);
3365
3366                 scsi_ulto2b(0, mode_header->data_length);
3367                 /*
3368                  * SONY drives do not allow a mode select with a medium_type
3369                  * value that has just been returned by a mode sense; use a
3370                  * medium_type of 0 (Default) instead.
3371                  */
3372                 mode_header->medium_type = 0;
3373
3374                 /*
3375                  * Pass back whatever the drive passed to us, plus the size
3376                  * of the data length field.
3377                  */
3378                 param_len = data_len + sizeof(mode_header->data_length);
3379
3380         } else {
3381                 struct scsi_mode_header_6 *mode_header;
3382
3383                 mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
3384
3385                 param_len = mode_header->data_length + 1;
3386
3387                 mode_header->data_length = 0;
3388                 /*
3389                  * SONY drives do not allow a mode select with a medium_type
3390                  * value that has just been returned by a mode sense; use a
3391                  * medium_type of 0 (Default) instead.
3392                  */
3393                 mode_header->medium_type = 0;
3394         }
3395
3396         /* Don't say we've got more room than we actually allocated */
3397         param_len = min(param_len, data->alloc_len);
3398
3399         scsi_mode_select_len(csio,
3400                              /* retries */ cd_retry_count,
3401                              /* cbfcnp */ NULL,
3402                              /* tag_action */ MSG_SIMPLE_Q_TAG,
3403                              /* scsi_page_fmt */ 1,
3404                              /* save_pages */ 0,
3405                              /* param_buf */ data->mode_buf,
3406                              /* param_len */ param_len,
3407                              /* minimum_cmd_size */ cdb_size,
3408                              /* sense_len */ SSD_FULL_SIZE,
3409                              /* timeout */ 50000);
3410
3411         /* See comments in cdgetmode() and cd6byteworkaround(). */
3412         STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3413
3414         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3415                          /*sense_flags*/SF_RETRY_UA);
3416
3417         xpt_release_ccb(ccb);
3418
3419         STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3420
3421         return (error);
3422 }
3423
3424 static int
3425 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
3426 {
3427         struct ccb_scsiio *csio;
3428         union ccb *ccb;
3429         int error;
3430         u_int8_t cdb_len;
3431
3432         error = 0;
3433         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3434         csio = &ccb->csio;
3435         /*
3436          * Use the smallest possible command to perform the operation.
3437          */
3438         if ((len & 0xffff0000) == 0) {
3439                 /*
3440                  * We can fit in a 10 byte cdb.
3441                  */
3442                 struct scsi_play_10 *scsi_cmd;
3443
3444                 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
3445                 bzero (scsi_cmd, sizeof(*scsi_cmd));
3446                 scsi_cmd->op_code = PLAY_10;
3447                 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3448                 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
3449                 cdb_len = sizeof(*scsi_cmd);
3450         } else  {
3451                 struct scsi_play_12 *scsi_cmd;
3452
3453                 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
3454                 bzero (scsi_cmd, sizeof(*scsi_cmd));
3455                 scsi_cmd->op_code = PLAY_12;
3456                 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3457                 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
3458                 cdb_len = sizeof(*scsi_cmd);
3459         }
3460         cam_fill_csio(csio,
3461                       /*retries*/ cd_retry_count,
3462                       /*cbfcnp*/NULL,
3463                       /*flags*/CAM_DIR_NONE,
3464                       MSG_SIMPLE_Q_TAG,
3465                       /*dataptr*/NULL,
3466                       /*datalen*/0,
3467                       /*sense_len*/SSD_FULL_SIZE,
3468                       cdb_len,
3469                       /*timeout*/50 * 1000);
3470
3471         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3472                          /*sense_flags*/SF_RETRY_UA);
3473
3474         xpt_release_ccb(ccb);
3475
3476         return(error);
3477 }
3478
3479 static int
3480 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
3481           u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
3482 {
3483         struct scsi_play_msf *scsi_cmd;
3484         struct ccb_scsiio *csio;
3485         union ccb *ccb;
3486         int error;
3487
3488         error = 0;
3489
3490         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3491
3492         csio = &ccb->csio;
3493
3494         cam_fill_csio(csio,
3495                       /* retries */ cd_retry_count,
3496                       /* cbfcnp */ NULL,
3497                       /* flags */ CAM_DIR_NONE,
3498                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3499                       /* data_ptr */ NULL,
3500                       /* dxfer_len */ 0,
3501                       /* sense_len */ SSD_FULL_SIZE,
3502                       sizeof(struct scsi_play_msf),
3503                       /* timeout */ 50000);
3504
3505         scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
3506         bzero (scsi_cmd, sizeof(*scsi_cmd));
3507
3508         scsi_cmd->op_code = PLAY_MSF;
3509         scsi_cmd->start_m = startm;
3510         scsi_cmd->start_s = starts;
3511         scsi_cmd->start_f = startf;
3512         scsi_cmd->end_m = endm;
3513         scsi_cmd->end_s = ends;
3514         scsi_cmd->end_f = endf;
3515
3516         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3517                          /*sense_flags*/SF_RETRY_UA);
3518
3519         xpt_release_ccb(ccb);
3520
3521         return(error);
3522 }
3523
3524 static int
3525 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
3526              u_int32_t etrack, u_int32_t eindex)
3527 {
3528         struct scsi_play_track *scsi_cmd;
3529         struct ccb_scsiio *csio;
3530         union ccb *ccb;
3531         int error;
3532
3533         error = 0;
3534
3535         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3536
3537         csio = &ccb->csio;
3538
3539         cam_fill_csio(csio,
3540                       /* retries */ cd_retry_count,
3541                       /* cbfcnp */ NULL,
3542                       /* flags */ CAM_DIR_NONE,
3543                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3544                       /* data_ptr */ NULL,
3545                       /* dxfer_len */ 0,
3546                       /* sense_len */ SSD_FULL_SIZE,
3547                       sizeof(struct scsi_play_track),
3548                       /* timeout */ 50000);
3549
3550         scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
3551         bzero (scsi_cmd, sizeof(*scsi_cmd));
3552
3553         scsi_cmd->op_code = PLAY_TRACK;
3554         scsi_cmd->start_track = strack;
3555         scsi_cmd->start_index = sindex;
3556         scsi_cmd->end_track = etrack;
3557         scsi_cmd->end_index = eindex;
3558
3559         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3560                          /*sense_flags*/SF_RETRY_UA);
3561
3562         xpt_release_ccb(ccb);
3563
3564         return(error);
3565 }
3566
3567 static int
3568 cdpause(struct cam_periph *periph, u_int32_t go)
3569 {
3570         struct scsi_pause *scsi_cmd;
3571         struct ccb_scsiio *csio;
3572         union ccb *ccb;
3573         int error;
3574
3575         error = 0;
3576
3577         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3578
3579         csio = &ccb->csio;
3580
3581         cam_fill_csio(csio,
3582                       /* retries */ cd_retry_count,
3583                       /* cbfcnp */ NULL,
3584                       /* flags */ CAM_DIR_NONE,
3585                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3586                       /* data_ptr */ NULL,
3587                       /* dxfer_len */ 0,
3588                       /* sense_len */ SSD_FULL_SIZE,
3589                       sizeof(struct scsi_pause),
3590                       /* timeout */ 50000);
3591
3592         scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
3593         bzero (scsi_cmd, sizeof(*scsi_cmd));
3594
3595         scsi_cmd->op_code = PAUSE;
3596         scsi_cmd->resume = go;
3597
3598         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3599                          /*sense_flags*/SF_RETRY_UA);
3600
3601         xpt_release_ccb(ccb);
3602
3603         return(error);
3604 }
3605
3606 static int
3607 cdstartunit(struct cam_periph *periph, int load)
3608 {
3609         union ccb *ccb;
3610         int error;
3611
3612         error = 0;
3613
3614         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3615
3616         scsi_start_stop(&ccb->csio,
3617                         /* retries */ cd_retry_count,
3618                         /* cbfcnp */ NULL,
3619                         /* tag_action */ MSG_SIMPLE_Q_TAG,
3620                         /* start */ TRUE,
3621                         /* load_eject */ load,
3622                         /* immediate */ FALSE,
3623                         /* sense_len */ SSD_FULL_SIZE,
3624                         /* timeout */ 50000);
3625
3626         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3627                          /*sense_flags*/SF_RETRY_UA);
3628
3629         xpt_release_ccb(ccb);
3630
3631         return(error);
3632 }
3633
3634 static int
3635 cdstopunit(struct cam_periph *periph, u_int32_t eject)
3636 {
3637         union ccb *ccb;
3638         int error;
3639
3640         error = 0;
3641
3642         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3643
3644         scsi_start_stop(&ccb->csio,
3645                         /* retries */ cd_retry_count,
3646                         /* cbfcnp */ NULL,
3647                         /* tag_action */ MSG_SIMPLE_Q_TAG,
3648                         /* start */ FALSE,
3649                         /* load_eject */ eject,
3650                         /* immediate */ FALSE,
3651                         /* sense_len */ SSD_FULL_SIZE,
3652                         /* timeout */ 50000);
3653
3654         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3655                          /*sense_flags*/SF_RETRY_UA);
3656
3657         xpt_release_ccb(ccb);
3658
3659         return(error);
3660 }
3661
3662 static int
3663 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
3664 {
3665         struct scsi_set_speed *scsi_cmd;
3666         struct ccb_scsiio *csio;
3667         union ccb *ccb;
3668         int error;
3669
3670         error = 0;
3671         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3672         csio = &ccb->csio;
3673
3674         /* Preserve old behavior: units in multiples of CDROM speed */
3675         if (rdspeed < 177)
3676                 rdspeed *= 177;
3677         if (wrspeed < 177)
3678                 wrspeed *= 177;
3679
3680         cam_fill_csio(csio,
3681                       /* retries */ cd_retry_count,
3682                       /* cbfcnp */ NULL,
3683                       /* flags */ CAM_DIR_NONE,
3684                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3685                       /* data_ptr */ NULL,
3686                       /* dxfer_len */ 0,
3687                       /* sense_len */ SSD_FULL_SIZE,
3688                       sizeof(struct scsi_set_speed),
3689                       /* timeout */ 50000);
3690
3691         scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes;
3692         bzero(scsi_cmd, sizeof(*scsi_cmd));
3693
3694         scsi_cmd->opcode = SET_CD_SPEED;
3695         scsi_ulto2b(rdspeed, scsi_cmd->readspeed);
3696         scsi_ulto2b(wrspeed, scsi_cmd->writespeed);
3697
3698         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3699                          /*sense_flags*/SF_RETRY_UA);
3700
3701         xpt_release_ccb(ccb);
3702
3703         return(error);
3704 }
3705
3706 static int
3707 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3708 {
3709         union ccb *ccb;
3710         u_int8_t *databuf;
3711         u_int32_t lba;
3712         int error;
3713         int length;
3714
3715         error = 0;
3716         databuf = NULL;
3717         lba = 0;
3718
3719         switch (authinfo->format) {
3720         case DVD_REPORT_AGID:
3721                 length = sizeof(struct scsi_report_key_data_agid);
3722                 break;
3723         case DVD_REPORT_CHALLENGE:
3724                 length = sizeof(struct scsi_report_key_data_challenge);
3725                 break;
3726         case DVD_REPORT_KEY1:
3727                 length = sizeof(struct scsi_report_key_data_key1_key2);
3728                 break;
3729         case DVD_REPORT_TITLE_KEY:
3730                 length = sizeof(struct scsi_report_key_data_title);
3731                 /* The lba field is only set for the title key */
3732                 lba = authinfo->lba;
3733                 break;
3734         case DVD_REPORT_ASF:
3735                 length = sizeof(struct scsi_report_key_data_asf);
3736                 break;
3737         case DVD_REPORT_RPC:
3738                 length = sizeof(struct scsi_report_key_data_rpc);
3739                 break;
3740         case DVD_INVALIDATE_AGID:
3741                 length = 0;
3742                 break;
3743         default:
3744                 return (EINVAL);
3745         }
3746
3747         if (length != 0) {
3748                 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3749         } else
3750                 databuf = NULL;
3751
3752         cam_periph_lock(periph);
3753         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3754
3755         scsi_report_key(&ccb->csio,
3756                         /* retries */ cd_retry_count,
3757                         /* cbfcnp */ NULL,
3758                         /* tag_action */ MSG_SIMPLE_Q_TAG,
3759                         /* lba */ lba,
3760                         /* agid */ authinfo->agid,
3761                         /* key_format */ authinfo->format,
3762                         /* data_ptr */ databuf,
3763                         /* dxfer_len */ length,
3764                         /* sense_len */ SSD_FULL_SIZE,
3765                         /* timeout */ 50000);
3766
3767         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3768                          /*sense_flags*/SF_RETRY_UA);
3769
3770         if (error != 0)
3771                 goto bailout;
3772
3773         if (ccb->csio.resid != 0) {
3774                 xpt_print(periph->path, "warning, residual for report key "
3775                     "command is %d\n", ccb->csio.resid);
3776         }
3777
3778         switch(authinfo->format) {
3779         case DVD_REPORT_AGID: {
3780                 struct scsi_report_key_data_agid *agid_data;
3781
3782                 agid_data = (struct scsi_report_key_data_agid *)databuf;
3783
3784                 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >>
3785                         RKD_AGID_SHIFT;
3786                 break;
3787         }
3788         case DVD_REPORT_CHALLENGE: {
3789                 struct scsi_report_key_data_challenge *chal_data;
3790
3791                 chal_data = (struct scsi_report_key_data_challenge *)databuf;
3792
3793                 bcopy(chal_data->challenge_key, authinfo->keychal,
3794                       min(sizeof(chal_data->challenge_key),
3795                           sizeof(authinfo->keychal)));
3796                 break;
3797         }
3798         case DVD_REPORT_KEY1: {
3799                 struct scsi_report_key_data_key1_key2 *key1_data;
3800
3801                 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf;
3802
3803                 bcopy(key1_data->key1, authinfo->keychal,
3804                       min(sizeof(key1_data->key1), sizeof(authinfo->keychal)));
3805                 break;
3806         }
3807         case DVD_REPORT_TITLE_KEY: {
3808                 struct scsi_report_key_data_title *title_data;
3809
3810                 title_data = (struct scsi_report_key_data_title *)databuf;
3811
3812                 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >>
3813                         RKD_TITLE_CPM_SHIFT;
3814                 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >>
3815                         RKD_TITLE_CP_SEC_SHIFT;
3816                 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >>
3817                         RKD_TITLE_CMGS_SHIFT;
3818                 bcopy(title_data->title_key, authinfo->keychal,
3819                       min(sizeof(title_data->title_key),
3820                           sizeof(authinfo->keychal)));
3821                 break;
3822         }
3823         case DVD_REPORT_ASF: {
3824                 struct scsi_report_key_data_asf *asf_data;
3825
3826                 asf_data = (struct scsi_report_key_data_asf *)databuf;
3827
3828                 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS;
3829                 break;
3830         }
3831         case DVD_REPORT_RPC: {
3832                 struct scsi_report_key_data_rpc *rpc_data;
3833
3834                 rpc_data = (struct scsi_report_key_data_rpc *)databuf;
3835
3836                 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >>
3837                         RKD_RPC_TYPE_SHIFT;
3838                 authinfo->vend_rsts =
3839                         (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >>
3840                         RKD_RPC_VENDOR_RESET_SHIFT;
3841                 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK;
3842                 authinfo->region = rpc_data->region_mask;
3843                 authinfo->rpc_scheme = rpc_data->rpc_scheme1;
3844                 break;
3845         }
3846         case DVD_INVALIDATE_AGID:
3847                 break;
3848         default:
3849                 /* This should be impossible, since we checked above */
3850                 error = EINVAL;
3851                 goto bailout;
3852                 break; /* NOTREACHED */
3853         }
3854
3855 bailout:
3856         xpt_release_ccb(ccb);
3857         cam_periph_unlock(periph);
3858
3859         if (databuf != NULL)
3860                 free(databuf, M_DEVBUF);
3861
3862         return(error);
3863 }
3864
3865 static int
3866 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3867 {
3868         union ccb *ccb;
3869         u_int8_t *databuf;
3870         int length;
3871         int error;
3872
3873         error = 0;
3874         databuf = NULL;
3875
3876         switch(authinfo->format) {
3877         case DVD_SEND_CHALLENGE: {
3878                 struct scsi_report_key_data_challenge *challenge_data;
3879
3880                 length = sizeof(*challenge_data);
3881
3882                 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3883
3884                 databuf = (u_int8_t *)challenge_data;
3885
3886                 scsi_ulto2b(length - sizeof(challenge_data->data_len),
3887                             challenge_data->data_len);
3888
3889                 bcopy(authinfo->keychal, challenge_data->challenge_key,
3890                       min(sizeof(authinfo->keychal),
3891                           sizeof(challenge_data->challenge_key)));
3892                 break;
3893         }
3894         case DVD_SEND_KEY2: {
3895                 struct scsi_report_key_data_key1_key2 *key2_data;
3896
3897                 length = sizeof(*key2_data);
3898
3899                 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3900
3901                 databuf = (u_int8_t *)key2_data;
3902
3903                 scsi_ulto2b(length - sizeof(key2_data->data_len),
3904                             key2_data->data_len);
3905
3906                 bcopy(authinfo->keychal, key2_data->key1,
3907                       min(sizeof(authinfo->keychal), sizeof(key2_data->key1)));
3908
3909                 break;
3910         }
3911         case DVD_SEND_RPC: {
3912                 struct scsi_send_key_data_rpc *rpc_data;
3913
3914                 length = sizeof(*rpc_data);
3915
3916                 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3917
3918                 databuf = (u_int8_t *)rpc_data;
3919
3920                 scsi_ulto2b(length - sizeof(rpc_data->data_len),
3921                             rpc_data->data_len);
3922
3923                 rpc_data->region_code = authinfo->region;
3924                 break;
3925         }
3926         default:
3927                 return (EINVAL);
3928         }
3929
3930         cam_periph_lock(periph);
3931         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3932
3933         scsi_send_key(&ccb->csio,
3934                       /* retries */ cd_retry_count,
3935                       /* cbfcnp */ NULL,
3936                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3937                       /* agid */ authinfo->agid,
3938                       /* key_format */ authinfo->format,
3939                       /* data_ptr */ databuf,
3940                       /* dxfer_len */ length,
3941                       /* sense_len */ SSD_FULL_SIZE,
3942                       /* timeout */ 50000);
3943
3944         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3945                          /*sense_flags*/SF_RETRY_UA);
3946
3947         xpt_release_ccb(ccb);
3948         cam_periph_unlock(periph);
3949
3950         if (databuf != NULL)
3951                 free(databuf, M_DEVBUF);
3952
3953         return(error);
3954 }
3955
3956 static int
3957 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct)
3958 {
3959         union ccb *ccb;
3960         u_int8_t *databuf;
3961         u_int32_t address;
3962         int error;
3963         int length;
3964
3965         error = 0;
3966         databuf = NULL;
3967         /* The address is reserved for many of the formats */
3968         address = 0;
3969
3970         switch(dvdstruct->format) {
3971         case DVD_STRUCT_PHYSICAL:
3972                 length = sizeof(struct scsi_read_dvd_struct_data_physical);
3973                 break;
3974         case DVD_STRUCT_COPYRIGHT:
3975                 length = sizeof(struct scsi_read_dvd_struct_data_copyright);
3976                 break;
3977         case DVD_STRUCT_DISCKEY:
3978                 length = sizeof(struct scsi_read_dvd_struct_data_disc_key);
3979                 break;
3980         case DVD_STRUCT_BCA:
3981                 length = sizeof(struct scsi_read_dvd_struct_data_bca);
3982                 break;
3983         case DVD_STRUCT_MANUFACT:
3984                 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer);
3985                 break;
3986         case DVD_STRUCT_CMI:
3987                 return (ENODEV);
3988         case DVD_STRUCT_PROTDISCID:
3989                 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid);
3990                 break;
3991         case DVD_STRUCT_DISCKEYBLOCK:
3992                 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk);
3993                 break;
3994         case DVD_STRUCT_DDS:
3995                 length = sizeof(struct scsi_read_dvd_struct_data_dds);
3996                 break;
3997         case DVD_STRUCT_MEDIUM_STAT:
3998                 length = sizeof(struct scsi_read_dvd_struct_data_medium_status);
3999                 break;
4000         case DVD_STRUCT_SPARE_AREA:
4001                 length = sizeof(struct scsi_read_dvd_struct_data_spare_area);
4002                 break;
4003         case DVD_STRUCT_RMD_LAST:
4004                 return (ENODEV);
4005         case DVD_STRUCT_RMD_RMA:
4006                 return (ENODEV);
4007         case DVD_STRUCT_PRERECORDED:
4008                 length = sizeof(struct scsi_read_dvd_struct_data_leadin);
4009                 break;
4010         case DVD_STRUCT_UNIQUEID:
4011                 length = sizeof(struct scsi_read_dvd_struct_data_disc_id);
4012                 break;
4013         case DVD_STRUCT_DCB:
4014                 return (ENODEV);
4015         case DVD_STRUCT_LIST:
4016                 /*
4017                  * This is the maximum allocation length for the READ DVD
4018                  * STRUCTURE command.  There's nothing in the MMC3 spec
4019                  * that indicates a limit in the amount of data that can
4020                  * be returned from this call, other than the limits
4021                  * imposed by the 2-byte length variables.
4022                  */
4023                 length = 65535;
4024                 break;
4025         default:
4026                 return (EINVAL);
4027         }
4028
4029         if (length != 0) {
4030                 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
4031         } else
4032                 databuf = NULL;
4033
4034         cam_periph_lock(periph);
4035         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
4036
4037         scsi_read_dvd_structure(&ccb->csio,
4038                                 /* retries */ cd_retry_count,
4039                                 /* cbfcnp */ NULL,
4040                                 /* tag_action */ MSG_SIMPLE_Q_TAG,
4041                                 /* lba */ address,
4042                                 /* layer_number */ dvdstruct->layer_num,
4043                                 /* key_format */ dvdstruct->format,
4044                                 /* agid */ dvdstruct->agid,
4045                                 /* data_ptr */ databuf,
4046                                 /* dxfer_len */ length,
4047                                 /* sense_len */ SSD_FULL_SIZE,
4048                                 /* timeout */ 50000);
4049
4050         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
4051                          /*sense_flags*/SF_RETRY_UA);
4052
4053         if (error != 0)
4054                 goto bailout;
4055
4056         switch(dvdstruct->format) {
4057         case DVD_STRUCT_PHYSICAL: {
4058                 struct scsi_read_dvd_struct_data_layer_desc *inlayer;
4059                 struct dvd_layer *outlayer;
4060                 struct scsi_read_dvd_struct_data_physical *phys_data;
4061
4062                 phys_data =
4063                         (struct scsi_read_dvd_struct_data_physical *)databuf;
4064                 inlayer = &phys_data->layer_desc;
4065                 outlayer = (struct dvd_layer *)&dvdstruct->data;
4066
4067                 dvdstruct->length = sizeof(*inlayer);
4068
4069                 outlayer->book_type = (inlayer->book_type_version &
4070                         RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT;
4071                 outlayer->book_version = (inlayer->book_type_version &
4072                         RDSD_BOOK_VERSION_MASK);
4073                 outlayer->disc_size = (inlayer->disc_size_max_rate &
4074                         RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT;
4075                 outlayer->max_rate = (inlayer->disc_size_max_rate &
4076                         RDSD_MAX_RATE_MASK);
4077                 outlayer->nlayers = (inlayer->layer_info &
4078                         RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT;
4079                 outlayer->track_path = (inlayer->layer_info &
4080                         RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT;
4081                 outlayer->layer_type = (inlayer->layer_info &
4082                         RDSD_LAYER_TYPE_MASK);
4083                 outlayer->linear_density = (inlayer->density &
4084                         RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT;
4085                 outlayer->track_density = (inlayer->density &
4086                         RDSD_TRACK_DENSITY_MASK);
4087                 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >>
4088                         RDSD_BCA_SHIFT;
4089                 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start);
4090                 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end);
4091                 outlayer->end_sector_l0 =
4092                         scsi_3btoul(inlayer->end_sector_layer0);
4093                 break;
4094         }
4095         case DVD_STRUCT_COPYRIGHT: {
4096                 struct scsi_read_dvd_struct_data_copyright *copy_data;
4097
4098                 copy_data = (struct scsi_read_dvd_struct_data_copyright *)
4099                         databuf;
4100
4101                 dvdstruct->cpst = copy_data->cps_type;
4102                 dvdstruct->rmi = copy_data->region_info;
4103                 dvdstruct->length = 0;
4104
4105                 break;
4106         }
4107         default:
4108                 /*
4109                  * Tell the user what the overall length is, no matter
4110                  * what we can actually fit in the data buffer.
4111                  */
4112                 dvdstruct->length = length - ccb->csio.resid -
4113                         sizeof(struct scsi_read_dvd_struct_data_header);
4114
4115                 /*
4116                  * But only actually copy out the smaller of what we read
4117                  * in or what the structure can take.
4118                  */
4119                 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header),
4120                       dvdstruct->data,
4121                       min(sizeof(dvdstruct->data), dvdstruct->length));
4122                 break;
4123         }
4124
4125 bailout:
4126         xpt_release_ccb(ccb);
4127         cam_periph_unlock(periph);
4128
4129         if (databuf != NULL)
4130                 free(databuf, M_DEVBUF);
4131
4132         return(error);
4133 }
4134
4135 void
4136 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
4137                 void (*cbfcnp)(struct cam_periph *, union ccb *),
4138                 u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
4139                 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len,
4140                 u_int8_t sense_len, u_int32_t timeout)
4141 {
4142         struct scsi_report_key *scsi_cmd;
4143
4144         scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes;
4145         bzero(scsi_cmd, sizeof(*scsi_cmd));
4146         scsi_cmd->opcode = REPORT_KEY;
4147         scsi_ulto4b(lba, scsi_cmd->lba);
4148         scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4149         scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4150                 (key_format & RK_KF_KEYFORMAT_MASK);
4151
4152         cam_fill_csio(csio,
4153                       retries,
4154                       cbfcnp,
4155                       /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN,
4156                       tag_action,
4157                       /*data_ptr*/ data_ptr,
4158                       /*dxfer_len*/ dxfer_len,
4159                       sense_len,
4160                       sizeof(*scsi_cmd),
4161                       timeout);
4162 }
4163
4164 void
4165 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
4166               void (*cbfcnp)(struct cam_periph *, union ccb *),
4167               u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
4168               u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4169               u_int32_t timeout)
4170 {
4171         struct scsi_send_key *scsi_cmd;
4172
4173         scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes;
4174         bzero(scsi_cmd, sizeof(*scsi_cmd));
4175         scsi_cmd->opcode = SEND_KEY;
4176
4177         scsi_ulto2b(dxfer_len, scsi_cmd->param_len);
4178         scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4179                 (key_format & RK_KF_KEYFORMAT_MASK);
4180
4181         cam_fill_csio(csio,
4182                       retries,
4183                       cbfcnp,
4184                       /*flags*/ CAM_DIR_OUT,
4185                       tag_action,
4186                       /*data_ptr*/ data_ptr,
4187                       /*dxfer_len*/ dxfer_len,
4188                       sense_len,
4189                       sizeof(*scsi_cmd),
4190                       timeout);
4191 }
4192
4193 void
4194 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
4195                         void (*cbfcnp)(struct cam_periph *, union ccb *),
4196                         u_int8_t tag_action, u_int32_t address,
4197                         u_int8_t layer_number, u_int8_t format, u_int8_t agid,
4198                         u_int8_t *data_ptr, u_int32_t dxfer_len,
4199                         u_int8_t sense_len, u_int32_t timeout)
4200 {
4201         struct scsi_read_dvd_structure *scsi_cmd;
4202
4203         scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes;
4204         bzero(scsi_cmd, sizeof(*scsi_cmd));
4205         scsi_cmd->opcode = READ_DVD_STRUCTURE;
4206
4207         scsi_ulto4b(address, scsi_cmd->address);
4208         scsi_cmd->layer_number = layer_number;
4209         scsi_cmd->format = format;
4210         scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4211         /* The AGID is the top two bits of this byte */
4212         scsi_cmd->agid = agid << 6;
4213
4214         cam_fill_csio(csio,
4215                       retries,
4216                       cbfcnp,
4217                       /*flags*/ CAM_DIR_IN,
4218                       tag_action,
4219                       /*data_ptr*/ data_ptr,
4220                       /*dxfer_len*/ dxfer_len,
4221                       sense_len,
4222                       sizeof(*scsi_cmd),
4223                       timeout);
4224 }
4225
4226 void
4227 scsi_read_toc(struct ccb_scsiio *csio, uint32_t retries,
4228               void (*cbfcnp)(struct cam_periph *, union ccb *),
4229               uint8_t tag_action, uint8_t byte1_flags, uint8_t format,
4230               uint8_t track, uint8_t *data_ptr, uint32_t dxfer_len,
4231               int sense_len, int timeout)
4232 {
4233         struct scsi_read_toc *scsi_cmd;
4234
4235         scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
4236         bzero(scsi_cmd, sizeof(*scsi_cmd));
4237         scsi_cmd->op_code = READ_TOC;
4238
4239         /*
4240          * The structure is counting from 1, the function counting from 0.
4241          * The spec counts from 0.  In MMC-6, there is only one flag, the
4242          * MSF flag.  But we put the whole byte in for a bit a future-proofing.
4243          */
4244         scsi_cmd->byte2 = byte1_flags;
4245         scsi_cmd->format = format;
4246         scsi_cmd->from_track = track;
4247         scsi_ulto2b(dxfer_len, scsi_cmd->data_len);
4248
4249         cam_fill_csio(csio,
4250                       /* retries */ retries,
4251                       /* cbfcnp */ cbfcnp,
4252                       /* flags */ CAM_DIR_IN,
4253                       /* tag_action */ tag_action,
4254                       /* data_ptr */ data_ptr,
4255                       /* dxfer_len */ dxfer_len,
4256                       /* sense_len */ sense_len,
4257                       sizeof(*scsi_cmd),
4258                       /* timeout */ timeout);
4259 }