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