sys/dev/scd/scd.c

   1 /*-
   2  * Copyright (c) 1995 Mikael Hybsch
   3  * All rights reserved.
   4  *
   5  * Portions of this file are copied from mcd.c
   6  * which has the following copyrights:
   7  *
   8  *      Copyright 1993 by Holger Veit (data part)
   9  *      Copyright 1993 by Brian Moore (audio part)
  10  *      Changes Copyright 1993 by Gary Clark II
  11  *      Changes Copyright (C) 1994 by Andrew A. Chernov
  12  *
  13  *      Rewrote probe routine to work on newer Mitsumi drives.
  14  *      Additional changes (C) 1994 by Jordan K. Hubbard
  15  *
  16  *      All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms, with or without
  19  * modification, are permitted provided that the following conditions
  20  * are met:
  21  * 1. Redistributions of source code must retain the above copyright
  22  *    notice, this list of conditions and the following disclaimer
  23  *    in this position and unchanged.
  24  * 2. Redistributions in binary form must reproduce the above copyright
  25  *    notice, this list of conditions and the following disclaimer in the
  26  *    documentation and/or other materials provided with the distribution.
  27  * 3. The name of the author may not be used to endorse or promote products
  28  *    derived from this software without specific prior written permission
  29  *
  30  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  31  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  32  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  33  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  34  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  35  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  36  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  37  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  38  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  39  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  40  *
  41  */
  42
  43 #include <sys/cdefs.h>
  44 __FBSDID("$FreeBSD$");
  45
  46
  47 #undef  SCD_DEBUG
  48
  49 #include <sys/param.h>
  50 #include <sys/systm.h>
  51 #include <sys/kernel.h>
  52 #include <sys/conf.h>
  53 #include <sys/fcntl.h>
  54 #include <sys/bio.h>
  55 #include <sys/cdio.h>
  56 #include <sys/disk.h>
  57 #include <sys/bus.h>
  58
  59 #include <machine/stdarg.h>
  60
  61 #include <machine/bus.h>
  62 #include <machine/resource.h>
  63 #include <sys/rman.h>
  64
  65 #include <isa/isavar.h>
  66
  67 #include <dev/scd/scdreg.h>
  68 #include <dev/scd/scdvar.h>
  69
  70 /* flags */
  71 #define SCDOPEN         0x0001  /* device opened */
  72 #define SCDVALID        0x0002  /* parameters loaded */
  73 #define SCDINIT         0x0004  /* device is init'd */
  74 #define SCDPROBING      0x0020  /* probing */
  75 #define SCDTOC          0x0100  /* already read toc */
  76 #define SCDMBXBSY       0x0200  /* local mbx is busy */
  77 #define SCDSPINNING     0x0400  /* drive is spun up */
  78
  79 #define SCD_S_BEGIN     0
  80 #define SCD_S_BEGIN1    1
  81 #define SCD_S_WAITSTAT  2
  82 #define SCD_S_WAITFIFO  3
  83 #define SCD_S_WAITSPIN  4
  84 #define SCD_S_WAITREAD  5
  85 #define SCD_S_WAITPARAM 6
  86
  87 #define RDELAY_WAIT     300
  88 #define RDELAY_WAITREAD 300
  89
  90 #define SCDBLKSIZE      2048
  91
  92 #ifdef SCD_DEBUG
  93    static int scd_debuglevel = SCD_DEBUG;
  94 #  define XDEBUG(sc, level, fmt, args...) \
  95         do { \
  96                 if (scd_debuglevel >= level) \
  97                         device_printf(sc->dev, fmt, ## args); \
  98         } while (0)
  99 #else
 100 #  define XDEBUG(sc, level, fmt, args...)
 101 #endif
 102
 103 #define IS_ATTENTION(sc)        ((SCD_READ(sc, IREG_STATUS) & SBIT_ATTENTION) != 0)
 104 #define IS_BUSY(sc)             ((SCD_READ(sc, IREG_STATUS) & SBIT_BUSY) != 0)
 105 #define IS_DATA_RDY(sc)         ((SCD_READ(sc, IREG_STATUS) & SBIT_DATA_READY) != 0)
 106 #define STATUS_BIT(sc, bit)     ((SCD_READ(sc, IREG_STATUS) & (bit)) != 0)
 107 #define FSTATUS_BIT(sc, bit)    ((SCD_READ(sc, IREG_FSTATUS) & (bit)) != 0)
 108
 109 /* prototypes */
 110 static  void    hsg2msf(int hsg, bcd_t *msf);
 111 static  int     msf2hsg(bcd_t *msf);
 112
 113 static void process_attention(struct scd_softc *);
 114 static int waitfor_status_bits(struct scd_softc *, int bits_set, int bits_clear);
 115 static int send_cmd(struct scd_softc *, u_char cmd, u_int nargs, ...);
 116 static void init_drive(struct scd_softc *);
 117 static int spin_up(struct scd_softc *);
 118 static int read_toc(struct scd_softc *);
 119 static int get_result(struct scd_softc *, int result_len, u_char *result);
 120 static void print_error(struct scd_softc *, int errcode);
 121
 122 static void scd_start(struct scd_softc *);
 123 static timeout_t scd_timeout;
 124 static void scd_doread(struct scd_softc *, int state, struct scd_mbx *mbxin);
 125
 126 static int scd_eject(struct scd_softc *);
 127 static int scd_stop(struct scd_softc *);
 128 static int scd_pause(struct scd_softc *);
 129 static int scd_resume(struct scd_softc *);
 130 static int scd_playtracks(struct scd_softc *, struct ioc_play_track *pt);
 131 static int scd_playmsf(struct scd_softc *, struct ioc_play_msf *msf);
 132 static int scd_play(struct scd_softc *, struct ioc_play_msf *msf);
 133 static int scd_subchan(struct scd_softc *, struct ioc_read_subchannel *sch, int nocopyout);
 134 static int read_subcode(struct scd_softc *, struct sony_subchannel_position_data *sch);
 135
 136 /* for xcdplayer */
 137 static int scd_toc_header(struct scd_softc *, struct ioc_toc_header *th);
 138 static int scd_toc_entrys(struct scd_softc *, struct ioc_read_toc_entry *te);
 139 static int scd_toc_entry(struct scd_softc *, struct ioc_read_toc_single_entry *te);
 140 #define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */
 141
 142 static  d_open_t        scdopen;
 143 static  d_close_t       scdclose;
 144 static  d_ioctl_t       scdioctl;
 145 static  d_strategy_t    scdstrategy;
 146
 147
 148 static struct cdevsw scd_cdevsw = {
 149         .d_version =    D_VERSION,
 150         .d_open =       scdopen,
 151         .d_close =      scdclose,
 152         .d_read =       physread,
 153         .d_ioctl =      scdioctl,
 154         .d_strategy =   scdstrategy,
 155         .d_name =       "scd",
 156         .d_flags =      D_DISK | D_NEEDGIANT,
 157 };
 158
 159 int
 160 scd_attach(struct scd_softc *sc)
 161 {
 162         int unit;
 163
 164         unit = device_get_unit(sc->dev);
 165
 166         init_drive(sc);
 167
 168         sc->data.flags = SCDINIT;
 169         sc->data.audio_status = CD_AS_AUDIO_INVALID;
 170         bioq_init(&sc->data.head);
 171
 172         sc->scd_dev_t = make_dev(&scd_cdevsw, 8 * unit,
 173                 UID_ROOT, GID_OPERATOR, 0640, "scd%d", unit);
 174         sc->scd_dev_t->si_drv1 = (void *)sc;
 175
 176         return (0);
 177 }
 178
 179 static  int
 180 scdopen(struct cdev *dev, int flags, int fmt, struct thread *td)
 181 {
 182         struct scd_softc *sc;
 183         int rc;
 184
 185         sc = (struct scd_softc *)dev->si_drv1;
 186
 187         /* not initialized*/
 188         if (!(sc->data.flags & SCDINIT))
 189                 return (ENXIO);
 190
 191         /* invalidated in the meantime? mark all open part's invalid */
 192         if (sc->data.openflag)
 193                 return (ENXIO);
 194
 195         XDEBUG(sc, 1, "DEBUG: status = 0x%x\n", SCD_READ(sc, IREG_STATUS));
 196
 197         if ((rc = spin_up(sc)) != 0) {
 198                 print_error(sc, rc);
 199                 return (EIO);
 200         }
 201         if (!(sc->data.flags & SCDTOC)) {
 202                 int loop_count = 3;
 203
 204                 while (loop_count-- > 0 && (rc = read_toc(sc)) != 0) {
 205                         if (rc == ERR_NOT_SPINNING) {
 206                                 rc = spin_up(sc);
 207                                 if (rc) {
 208                                         print_error(sc, rc);\
 209                                         return (EIO);
 210                                 }
 211                                 continue;
 212                         }
 213                         device_printf(sc->dev, "TOC read error 0x%x\n", rc);
 214                         return (EIO);
 215                 }
 216         }
 217
 218         sc->data.openflag = 1;
 219         sc->data.flags |= SCDVALID;
 220
 221         return (0);
 222 }
 223
 224 static  int
 225 scdclose(struct cdev *dev, int flags, int fmt, struct thread *td)
 226 {
 227         struct scd_softc *sc;
 228
 229         sc = (struct scd_softc *)dev->si_drv1;
 230
 231         if (!(sc->data.flags & SCDINIT) || !sc->data.openflag)
 232                 return (ENXIO);
 233
 234         if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) {
 235                 (void)send_cmd(sc, CMD_SPIN_DOWN, 0);
 236                 sc->data.flags &= ~SCDSPINNING;
 237         }
 238
 239
 240         /* close channel */
 241         sc->data.openflag = 0;
 242
 243         return (0);
 244 }
 245
 246 static  void
 247 scdstrategy(struct bio *bp)
 248 {
 249         int s;
 250         struct scd_softc *sc;
 251
 252         sc = (struct scd_softc *)bp->bio_dev->si_drv1;
 253
 254         /* if device invalidated (e.g. media change, door open), error */
 255         if (!(sc->data.flags & SCDVALID)) {
 256                 device_printf(sc->dev, "media changed\n");
 257                 bp->bio_error = EIO;
 258                 goto bad;
 259         }
 260
 261         /* read only */
 262         if (!(bp->bio_cmd == BIO_READ)) {
 263                 bp->bio_error = EROFS;
 264                 goto bad;
 265         }
 266
 267         /* no data to read */
 268         if (bp->bio_bcount == 0)
 269                 goto done;
 270
 271         if (!(sc->data.flags & SCDTOC)) {
 272                 bp->bio_error = EIO;
 273                 goto bad;
 274         }
 275
 276         bp->bio_resid = 0;
 277
 278         /* queue it */
 279         s = splbio();
 280         bioq_disksort(&sc->data.head, bp);
 281         splx(s);
 282
 283         /* now check whether we can perform processing */
 284         scd_start(sc);
 285         return;
 286
 287 bad:
 288         bp->bio_flags |= BIO_ERROR;
 289 done:
 290         bp->bio_resid = bp->bio_bcount;
 291         biodone(bp);
 292         return;
 293 }
 294
 295 static void
 296 scd_start(struct scd_softc *sc)
 297 {
 298         struct bio *bp;
 299         int s = splbio();
 300
 301         if (sc->data.flags & SCDMBXBSY) {
 302                 splx(s);
 303                 return;
 304         }
 305
 306         bp = bioq_takefirst(&sc->data.head);
 307         if (bp != 0) {
 308                 /* block found to process, dequeue */
 309                 sc->data.flags |= SCDMBXBSY;
 310                 splx(s);
 311         } else {
 312                 /* nothing to do */
 313                 splx(s);
 314                 return;
 315         }
 316
 317         sc->data.mbx.retry = 3;
 318         sc->data.mbx.bp = bp;
 319         splx(s);
 320
 321         scd_doread(sc, SCD_S_BEGIN, &(sc->data.mbx));
 322         return;
 323 }
 324
 325 static  int
 326 scdioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
 327 {
 328         struct scd_softc *sc;
 329
 330         sc = (struct scd_softc *)dev->si_drv1;
 331
 332         XDEBUG(sc, 1, "ioctl: cmd=0x%lx\n", cmd);
 333
 334         if (!(sc->data.flags & SCDVALID))
 335                 return (EIO);
 336
 337         switch (cmd) {
 338         case DIOCGMEDIASIZE:
 339                 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize;
 340                 return (0);
 341                 break;
 342         case DIOCGSECTORSIZE:
 343                 *(u_int *)addr = sc->data.blksize;
 344                 return (0);
 345                 break;
 346         case CDIOCPLAYTRACKS:
 347                 return scd_playtracks(sc, (struct ioc_play_track *) addr);
 348         case CDIOCPLAYBLOCKS:
 349                 return (EINVAL);
 350         case CDIOCPLAYMSF:
 351                 return scd_playmsf(sc, (struct ioc_play_msf *) addr);
 352         case CDIOCREADSUBCHANNEL_SYSSPACE:
 353                 return scd_subchan(sc, (struct ioc_read_subchannel *) addr, 1);
 354         case CDIOCREADSUBCHANNEL:
 355                 return scd_subchan(sc, (struct ioc_read_subchannel *) addr, 0);
 356         case CDIOREADTOCHEADER:
 357                 return scd_toc_header (sc, (struct ioc_toc_header *) addr);
 358         case CDIOREADTOCENTRYS:
 359                 return scd_toc_entrys (sc, (struct ioc_read_toc_entry*) addr);
 360         case CDIOREADTOCENTRY:
 361                 return scd_toc_entry (sc, (struct ioc_read_toc_single_entry*) addr);
 362         case CDIOCSETPATCH:
 363         case CDIOCGETVOL:
 364         case CDIOCSETVOL:
 365         case CDIOCSETMONO:
 366         case CDIOCSETSTERIO:
 367         case CDIOCSETMUTE:
 368         case CDIOCSETLEFT:
 369         case CDIOCSETRIGHT:
 370                 return (EINVAL);
 371         case CDIOCRESUME:
 372                 return scd_resume(sc);
 373         case CDIOCPAUSE:
 374                 return scd_pause(sc);
 375         case CDIOCSTART:
 376                 return (EINVAL);
 377         case CDIOCSTOP:
 378                 return scd_stop(sc);
 379         case CDIOCEJECT:
 380                 return scd_eject(sc);
 381         case CDIOCALLOW:
 382                 return (0);
 383         case CDIOCSETDEBUG:
 384 #ifdef SCD_DEBUG
 385                 scd_debuglevel++;
 386 #endif
 387                 return (0);
 388         case CDIOCCLRDEBUG:
 389 #ifdef SCD_DEBUG
 390                 scd_debuglevel = 0;
 391
 392 #endif
 393                 return (0);
 394         default:
 395                 device_printf(sc->dev, "unsupported ioctl (cmd=0x%lx)\n", cmd);
 396                 return (ENOTTY);
 397         }
 398 }
 399
 400 /***************************************************************
 401  * lower level of driver starts here
 402  **************************************************************/
 403
 404 static int
 405 scd_playtracks(struct scd_softc *sc, struct ioc_play_track *pt)
 406 {
 407         struct ioc_play_msf msf;
 408         int a = pt->start_track;
 409         int z = pt->end_track;
 410         int rc;
 411
 412         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
 413                 if (rc == -ERR_NOT_SPINNING) {
 414                         if (spin_up(sc) != 0)
 415                                 return (EIO);
 416                         rc = read_toc(sc);
 417                 }
 418                 if (rc != 0) {
 419                         print_error(sc, rc);
 420                         return (EIO);
 421                 }
 422         }
 423
 424         XDEBUG(sc, 1, "playtracks from %d:%d to %d:%d\n",
 425                 a, pt->start_index, z, pt->end_index);
 426
 427         if (   a < sc->data.first_track
 428             || a > sc->data.last_track
 429             || a > z
 430             || z > sc->data.last_track)
 431                 return (EINVAL);
 432
 433         bcopy(sc->data.toc[a].start_msf, &msf.start_m, 3);
 434         hsg2msf(msf2hsg(sc->data.toc[z+1].start_msf)-1, &msf.end_m);
 435
 436         return scd_play(sc, &msf);
 437 }
 438
 439 /* The start/end msf is expected to be in bin format */
 440 static int
 441 scd_playmsf(struct scd_softc *sc, struct ioc_play_msf *msfin)
 442 {
 443         struct ioc_play_msf msf;
 444
 445         msf.start_m = bin2bcd(msfin->start_m);
 446         msf.start_s = bin2bcd(msfin->start_s);
 447         msf.start_f = bin2bcd(msfin->start_f);
 448         msf.end_m = bin2bcd(msfin->end_m);
 449         msf.end_s = bin2bcd(msfin->end_s);
 450         msf.end_f = bin2bcd(msfin->end_f);
 451
 452         return scd_play(sc, &msf);
 453 }
 454
 455 /* The start/end msf is expected to be in bcd format */
 456 static int
 457 scd_play(struct scd_softc *sc, struct ioc_play_msf *msf)
 458 {
 459         int i, rc;
 460
 461         XDEBUG(sc, 1, "playing: %02x:%02x:%02x -> %02x:%02x:%02x\n",
 462                 msf->start_m, msf->start_s, msf->start_f,
 463                 msf->end_m, msf->end_s, msf->end_f);
 464
 465         for (i = 0; i < 2; i++) {
 466                 rc = send_cmd(sc, CMD_PLAY_AUDIO, 7,
 467                         0x03,
 468                         msf->start_m, msf->start_s, msf->start_f,
 469                         msf->end_m, msf->end_s, msf->end_f);
 470                 if (rc == -ERR_NOT_SPINNING) {
 471                         sc->data.flags &= ~SCDSPINNING;
 472                         if (spin_up(sc) != 0)
 473                                 return (EIO);
 474                 } else if (rc < 0) {
 475                         print_error(sc, rc);
 476                         return (EIO);
 477                 } else {
 478                         break;
 479                 }
 480         }
 481         sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
 482         bcopy((char *)msf, (char *)&sc->data.last_play, sizeof(struct ioc_play_msf));
 483         return (0);
 484 }
 485
 486 static int
 487 scd_stop(struct scd_softc *sc)
 488 {
 489
 490         (void)send_cmd(sc, CMD_STOP_AUDIO, 0);
 491         sc->data.audio_status = CD_AS_PLAY_COMPLETED;
 492         return (0);
 493 }
 494
 495 static int
 496 scd_pause(struct scd_softc *sc)
 497 {
 498         struct sony_subchannel_position_data subpos;
 499
 500         if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS)
 501                 return (EINVAL);
 502
 503         if (read_subcode(sc, &subpos) != 0)
 504                 return (EIO);
 505
 506         if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0)
 507                 return (EIO);
 508
 509         sc->data.last_play.start_m = subpos.abs_msf[0];
 510         sc->data.last_play.start_s = subpos.abs_msf[1];
 511         sc->data.last_play.start_f = subpos.abs_msf[2];
 512         sc->data.audio_status = CD_AS_PLAY_PAUSED;
 513
 514         XDEBUG(sc, 1, "pause @ %02x:%02x:%02x\n",
 515                 sc->data.last_play.start_m,
 516                 sc->data.last_play.start_s,
 517                 sc->data.last_play.start_f);
 518
 519         return (0);
 520 }
 521
 522 static int
 523 scd_resume(struct scd_softc *sc)
 524 {
 525
 526         if (sc->data.audio_status != CD_AS_PLAY_PAUSED)
 527                 return (EINVAL);
 528         return scd_play(sc, &sc->data.last_play);
 529 }
 530
 531 static int
 532 scd_eject(struct scd_softc *sc)
 533 {
 534
 535         sc->data.audio_status = CD_AS_AUDIO_INVALID;
 536         sc->data.flags &= ~(SCDSPINNING|SCDTOC);
 537
 538         if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0 ||
 539             send_cmd(sc, CMD_SPIN_DOWN, 0) != 0 ||
 540             send_cmd(sc, CMD_EJECT, 0) != 0)
 541         {
 542                 return (EIO);
 543         }
 544         return (0);
 545 }
 546
 547 static int
 548 scd_subchan(struct scd_softc *sc, struct ioc_read_subchannel *sch, int nocopyout)
 549 {
 550         struct sony_subchannel_position_data q;
 551         struct cd_sub_channel_info data;
 552
 553         XDEBUG(sc, 1, "subchan af=%d, df=%d\n",
 554                 sch->address_format, sch->data_format);
 555
 556         if (sch->address_format != CD_MSF_FORMAT)
 557                 return (EINVAL);
 558
 559         if (sch->data_format != CD_CURRENT_POSITION)
 560                 return (EINVAL);
 561
 562         if (read_subcode(sc, &q) != 0)
 563                 return (EIO);
 564
 565         data.header.audio_status = sc->data.audio_status;
 566         data.what.position.data_format = CD_MSF_FORMAT;
 567         data.what.position.track_number = bcd2bin(q.track_number);
 568         data.what.position.reladdr.msf.unused = 0;
 569         data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]);
 570         data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]);
 571         data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]);
 572         data.what.position.absaddr.msf.unused = 0;
 573         data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]);
 574         data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]);
 575         data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]);
 576
 577         if (nocopyout == 0) {
 578                 if (copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len))!=0)
 579                         return (EFAULT);
 580         } else {
 581                 bcopy(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len));
 582         }
 583         return (0);
 584 }
 585
 586 int
 587 scd_probe(struct scd_softc *sc)
 588 {
 589         struct sony_drive_configuration drive_config;
 590         int rc;
 591         static char namebuf[8+16+8+3];
 592         char *s = namebuf;
 593         int loop_count = 0;
 594
 595         sc->data.flags = SCDPROBING;
 596
 597         bzero(&drive_config, sizeof(drive_config));
 598
 599 again:
 600         /* Reset drive */
 601         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESET_DRIVE);
 602
 603         /* Calm down */
 604         DELAY(300000);
 605
 606         /* Only the ATTENTION bit may be set */
 607         if ((SCD_READ(sc, IREG_STATUS) & ~1) != 0) {
 608                 XDEBUG(sc, 1, "too many bits set. probe failed.\n");
 609                 return (ENXIO);
 610         }
 611         rc = send_cmd(sc, CMD_GET_DRIVE_CONFIG, 0);
 612         if (rc != sizeof(drive_config)) {
 613                 /* Sometimes if the drive is playing audio I get */
 614                 /* the bad result 82. Fix by repeating the reset */
 615                 if (rc > 0 && loop_count++ == 0)
 616                         goto again;
 617                 return (ENXIO);
 618         }
 619         if (get_result(sc, rc, (u_char *)&drive_config) != 0)
 620                 return (ENXIO);
 621
 622         bcopy(drive_config.vendor, namebuf, 8);
 623         s = namebuf+8;
 624         while (*(s-1) == ' ')   /* Strip trailing spaces */
 625                 s--;
 626         *s++ = ' ';
 627         bcopy(drive_config.product, s, 16);
 628         s += 16;
 629         while (*(s-1) == ' ')
 630                 s--;
 631         *s++ = ' ';
 632         bcopy(drive_config.revision, s, 8);
 633         s += 8;
 634         while (*(s-1) == ' ')
 635                 s--;
 636         *s = 0;
 637
 638         sc->data.name = namebuf;
 639
 640         if (drive_config.config & 0x10)
 641                 sc->data.double_speed = 1;
 642         else
 643                 sc->data.double_speed = 0;
 644
 645         return (0);
 646 }
 647
 648 static int
 649 read_subcode(struct scd_softc *sc, struct sony_subchannel_position_data *scp)
 650 {
 651         int rc;
 652
 653         rc = send_cmd(sc, CMD_GET_SUBCHANNEL_DATA, 0);
 654         if (rc < 0 || rc < sizeof(*scp))
 655                 return (EIO);
 656         if (get_result(sc, rc, (u_char *)scp) != 0)
 657                 return (EIO);
 658         return (0);
 659 }
 660
 661 /* State machine copied from mcd.c */
 662
 663 /* This (and the code in mcd.c) will not work with more than one drive */
 664 /* because there is only one sc->ch_mbxsave below. Should fix that some day. */
 665 /* (sc->ch_mbxsave & state should probably be included in the scd_data struct and */
 666 /*  the unit number used as first argument to scd_doread().) /Micke */
 667
 668 /* state machine to process read requests
 669  * initialize with SCD_S_BEGIN: reset state machine
 670  * SCD_S_WAITSTAT:  wait for ready (!busy)
 671  * SCD_S_WAITSPIN:  wait for drive to spin up (if not spinning)
 672  * SCD_S_WAITFIFO:  wait for param fifo to get ready, them exec. command.
 673  * SCD_S_WAITREAD:  wait for data ready, read data
 674  * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read.
 675  */
 676
 677 static void
 678 scd_timeout(void *arg)
 679 {
 680         struct scd_softc *sc;
 681         sc = (struct scd_softc *)arg;
 682
 683         scd_doread(sc, sc->ch_state, sc->ch_mbxsave);
 684 }
 685
 686 static void
 687 scd_doread(struct scd_softc *sc, int state, struct scd_mbx *mbxin)
 688 {
 689         struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? sc->ch_mbxsave : mbxin;
 690         struct  bio *bp = mbx->bp;
 691         int     i;
 692         int     blknum;
 693         caddr_t addr;
 694         static char sdata[3];   /* Must be preserved between calls to this function */
 695
 696 loop:
 697         switch (state) {
 698         case SCD_S_BEGIN:
 699                 mbx = sc->ch_mbxsave = mbxin;
 700
 701         case SCD_S_BEGIN1:
 702                 /* get status */
 703                 mbx->count = RDELAY_WAIT;
 704
 705                 process_attention(sc);
 706                 goto trystat;
 707
 708         case SCD_S_WAITSTAT:
 709                 sc->ch_state = SCD_S_WAITSTAT;
 710                 untimeout(scd_timeout, (caddr_t)sc, sc->ch);
 711                 if (mbx->count-- <= 0) {
 712                         device_printf(sc->dev, "timeout. drive busy.\n");
 713                         goto harderr;
 714                 }
 715
 716 trystat:
 717                 if (IS_BUSY(sc)) {
 718                         sc->ch_state = SCD_S_WAITSTAT;
 719                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 720                         return;
 721                 }
 722
 723                 process_attention(sc);
 724
 725                 /* reject, if audio active */
 726                 if (sc->data.audio_status & CD_AS_PLAY_IN_PROGRESS) {
 727                         device_printf(sc->dev, "audio is active\n");
 728                         goto harderr;
 729                 }
 730
 731                 mbx->sz = sc->data.blksize;
 732
 733                 /* for first block */
 734                 mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz;
 735                 mbx->skip = 0;
 736
 737 nextblock:
 738                 if (!(sc->data.flags & SCDVALID))
 739                         goto changed;
 740
 741                 blknum  = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz;
 742
 743                 XDEBUG(sc, 2, "scd_doread: read blknum=%d\n", blknum);
 744
 745                 /* build parameter block */
 746                 hsg2msf(blknum, sdata);
 747
 748                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 749                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR);
 750                 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR);
 751
 752                 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY))
 753                         goto writeparam;
 754
 755                 mbx->count = 100;
 756                 sc->ch_state = SCD_S_WAITFIFO;
 757                 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 758                 return;
 759
 760         case SCD_S_WAITSPIN:
 761                 sc->ch_state = SCD_S_WAITSPIN;
 762                 untimeout(scd_timeout,(caddr_t)sc, sc->ch);
 763                 if (mbx->count-- <= 0) {
 764                         device_printf(sc->dev, "timeout waiting for drive to spin up.\n");
 765                         goto harderr;
 766                 }
 767                 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) {
 768                         sc->ch_state = SCD_S_WAITSPIN;
 769                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 770                         return;
 771                 }
 772                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 773                 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
 774                 case 0x20:
 775                         i = SCD_READ(sc, IREG_RESULT);
 776                         print_error(sc, i);
 777                         goto harderr;
 778                 case 0x00:
 779                         (void)SCD_READ(sc, IREG_RESULT);
 780                         sc->data.flags |= SCDSPINNING;
 781                         break;
 782                 }
 783                 XDEBUG(sc, 1, "DEBUG: spin up complete\n");
 784
 785                 state = SCD_S_BEGIN1;
 786                 goto loop;
 787
 788         case SCD_S_WAITFIFO:
 789                 sc->ch_state = SCD_S_WAITFIFO;
 790                 untimeout(scd_timeout,(caddr_t)sc, sc->ch);
 791                 if (mbx->count-- <= 0) {
 792                         device_printf(sc->dev, "timeout. write param not ready.\n");
 793                         goto harderr;
 794                 }
 795                 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) {
 796                         sc->ch_state = SCD_S_WAITFIFO;
 797                         sc->ch = timeout(scd_timeout, (caddr_t)sc,hz/100); /* XXX */
 798                         return;
 799                 }
 800                 XDEBUG(sc, 1, "mbx->count (writeparamwait) = %d(%d)\n", mbx->count, 100);
 801
 802 writeparam:
 803                 /* The reason this test isn't done 'till now is to make sure */
 804                 /* that it is ok to send the SPIN_UP cmd below. */
 805                 if (!(sc->data.flags & SCDSPINNING)) {
 806                         XDEBUG(sc, 1, "spinning up drive ...\n");
 807                         SCD_WRITE(sc, OREG_COMMAND, CMD_SPIN_UP);
 808                         mbx->count = 300;
 809                         sc->ch_state = SCD_S_WAITSPIN;
 810                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 811                         return;
 812                 }
 813
 814                 /* send the read command */
 815                 critical_enter();
 816                 SCD_WRITE(sc, OREG_WPARAMS, sdata[0]);
 817                 SCD_WRITE(sc, OREG_WPARAMS, sdata[1]);
 818                 SCD_WRITE(sc, OREG_WPARAMS, sdata[2]);
 819                 SCD_WRITE(sc, OREG_WPARAMS, 0);
 820                 SCD_WRITE(sc, OREG_WPARAMS, 0);
 821                 SCD_WRITE(sc, OREG_WPARAMS, 1);
 822                 SCD_WRITE(sc, OREG_COMMAND, CMD_READ);
 823                 critical_exit();
 824
 825                 mbx->count = RDELAY_WAITREAD;
 826                 for (i = 0; i < 50; i++) {
 827                         if (STATUS_BIT(sc, SBIT_DATA_READY))
 828                                 goto got_data;
 829                         DELAY(100);
 830                 }
 831
 832                 sc->ch_state = SCD_S_WAITREAD;
 833                 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 834                 return;
 835
 836         case SCD_S_WAITREAD:
 837                 sc->ch_state = SCD_S_WAITREAD;
 838                 untimeout(scd_timeout,(caddr_t)sc, sc->ch);
 839                 if (mbx->count-- <= 0) {
 840                         if (STATUS_BIT(sc, SBIT_RESULT_READY))
 841                                 goto got_param;
 842                         device_printf(sc->dev, "timeout while reading data\n");
 843                         goto readerr;
 844                 }
 845                 if (!STATUS_BIT(sc, SBIT_DATA_READY)) {
 846                         process_attention(sc);
 847                         if (!(sc->data.flags & SCDVALID))
 848                                 goto changed;
 849                         sc->ch_state = SCD_S_WAITREAD;
 850                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 851                         return;
 852                 }
 853                 XDEBUG(sc, 2, "mbx->count (after RDY_BIT) = %d(%d)\n", mbx->count, RDELAY_WAITREAD);
 854
 855 got_data:
 856                 /* data is ready */
 857                 addr = bp->bio_data + mbx->skip;
 858                 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR);
 859                 SCD_READ_MULTI(sc, IREG_DATA, addr, mbx->sz);
 860
 861                 mbx->count = 100;
 862                 for (i = 0; i < 20; i++) {
 863                         if (STATUS_BIT(sc, SBIT_RESULT_READY))
 864                                 goto waitfor_param;
 865                         DELAY(100);
 866                 }
 867                 goto waitfor_param;
 868
 869         case SCD_S_WAITPARAM:
 870                 sc->ch_state = SCD_S_WAITPARAM;
 871                 untimeout(scd_timeout,(caddr_t)sc, sc->ch);
 872                 if (mbx->count-- <= 0) {
 873                         device_printf(sc->dev, "timeout waiting for params\n");
 874                         goto readerr;
 875                 }
 876
 877 waitfor_param:
 878                 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) {
 879                         sc->ch_state = SCD_S_WAITPARAM;
 880                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 881                         return;
 882                 }
 883 #ifdef SCD_DEBUG
 884                 if (mbx->count < 100 && scd_debuglevel > 0)
 885                         device_printf(sc->dev, "mbx->count (paramwait) = %d(%d)\n", mbx->count, 100);
 886 #endif
 887
 888 got_param:
 889                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 890                 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
 891                 case 0x50:
 892                         switch (i) {
 893                         case ERR_FATAL_READ_ERROR1:
 894                         case ERR_FATAL_READ_ERROR2:
 895                                 device_printf(sc->dev, "unrecoverable read error 0x%x\n", i);
 896                                 goto harderr;
 897                         }
 898                         break;
 899                 case 0x20:
 900                         i = SCD_READ(sc, IREG_RESULT);
 901                         switch (i) {
 902                         case ERR_NOT_SPINNING:
 903                                 XDEBUG(sc, 1, "read error: drive not spinning\n");
 904                                 if (mbx->retry-- > 0) {
 905                                         state = SCD_S_BEGIN1;
 906                                         sc->data.flags &= ~SCDSPINNING;
 907                                         goto loop;
 908                                 }
 909                                 goto harderr;
 910                         default:
 911                                 print_error(sc, i);
 912                                 goto readerr;
 913                         }
 914                 case 0x00:
 915                         i = SCD_READ(sc, IREG_RESULT);
 916                         break;
 917                 }
 918
 919                 if (--mbx->nblk > 0) {
 920                         mbx->skip += mbx->sz;
 921                         goto nextblock;
 922                 }
 923
 924                 /* return buffer */
 925                 bp->bio_resid = 0;
 926                 biodone(bp);
 927
 928                 sc->data.flags &= ~SCDMBXBSY;
 929                 scd_start(sc);
 930                 return;
 931         }
 932
 933 readerr:
 934         if (mbx->retry-- > 0) {
 935                 device_printf(sc->dev, "retrying ...\n");
 936                 state = SCD_S_BEGIN1;
 937                 goto loop;
 938         }
 939 harderr:
 940         /* invalidate the buffer */
 941         bp->bio_error = EIO;
 942         bp->bio_flags |= BIO_ERROR;
 943         bp->bio_resid = bp->bio_bcount;
 944         biodone(bp);
 945
 946         sc->data.flags &= ~SCDMBXBSY;
 947         scd_start(sc);
 948         return;
 949
 950 changed:
 951         device_printf(sc->dev, "media changed\n");
 952         goto harderr;
 953 }
 954
 955 static void
 956 hsg2msf(int hsg, bcd_t *msf)
 957 {
 958
 959         hsg += 150;
 960         M_msf(msf) = bin2bcd(hsg / 4500);
 961         hsg %= 4500;
 962         S_msf(msf) = bin2bcd(hsg / 75);
 963         F_msf(msf) = bin2bcd(hsg % 75);
 964 }
 965
 966 static int
 967 msf2hsg(bcd_t *msf)
 968 {
 969
 970         return (bcd2bin(M_msf(msf)) * 60 +
 971                 bcd2bin(S_msf(msf))) * 75 +
 972                 bcd2bin(F_msf(msf)) - 150;
 973 }
 974
 975 static void
 976 process_attention(struct scd_softc *sc)
 977 {
 978         unsigned char code;
 979         int count = 0;
 980
 981         while (IS_ATTENTION(sc) && count++ < 30) {
 982                 SCD_WRITE(sc, OREG_CONTROL, CBIT_ATTENTION_CLEAR);
 983                 code = SCD_READ(sc, IREG_RESULT);
 984
 985 #ifdef SCD_DEBUG
 986                 if (scd_debuglevel > 0) {
 987                         if (count == 1)
 988                                 device_printf(sc->dev, "DEBUG: ATTENTIONS = 0x%x", code);
 989                         else
 990                                 printf(",0x%x", code);
 991                 }
 992 #endif
 993
 994                 switch (code) {
 995                 case ATTEN_SPIN_DOWN:
 996                         sc->data.flags &= ~SCDSPINNING;
 997                         break;
 998
 999                 case ATTEN_SPIN_UP_DONE:
1000                         sc->data.flags |= SCDSPINNING;
1001                         break;
1002
1003                 case ATTEN_AUDIO_DONE:
1004                         sc->data.audio_status = CD_AS_PLAY_COMPLETED;
1005                         break;
1006
1007                 case ATTEN_DRIVE_LOADED:
1008                         sc->data.flags &= ~(SCDTOC|SCDSPINNING|SCDVALID);
1009                         sc->data.audio_status = CD_AS_AUDIO_INVALID;
1010                         break;
1011
1012                 case ATTEN_EJECT_PUSHED:
1013                         sc->data.flags &= ~SCDVALID;
1014                         break;
1015                 }
1016                 DELAY(100);
1017         }
1018 #ifdef SCD_DEBUG
1019         if (scd_debuglevel > 0 && count > 0)
1020                 printf("\n");
1021 #endif
1022 }
1023
1024 /* Returns 0 OR sony error code */
1025 static int
1026 spin_up(struct scd_softc *sc)
1027 {
1028         unsigned char res_reg[12];
1029         unsigned int res_size;
1030         int rc;
1031         int loop_count = 0;
1032
1033 again:
1034         rc = send_cmd(sc, CMD_SPIN_UP, 0, 0, res_reg, &res_size);
1035         if (rc != 0) {
1036                 XDEBUG(sc, 2, "CMD_SPIN_UP error 0x%x\n", rc);
1037                 return (rc);
1038         }
1039
1040         if (!(sc->data.flags & SCDTOC)) {
1041                 rc = send_cmd(sc, CMD_READ_TOC, 0);
1042                 if (rc == ERR_NOT_SPINNING) {
1043                         if (loop_count++ < 3)
1044                                 goto again;
1045                         return (rc);
1046                 }
1047                 if (rc != 0)
1048                         return (rc);
1049         }
1050
1051         sc->data.flags |= SCDSPINNING;
1052
1053         return (0);
1054 }
1055
1056 static struct sony_tracklist *
1057 get_tl(struct sony_toc *toc, int size)
1058 {
1059         struct sony_tracklist *tl = &toc->tracks[0];
1060
1061         if (tl->track != 0xb0)
1062                 return (tl);
1063         if (tl->track != 0xb1)
1064                 return (tl);
1065         tl = (struct sony_tracklist *)((char *)tl + 9);
1066         if (tl->track != 0xb2)
1067                 return (tl);
1068         tl = (struct sony_tracklist *)((char *)tl + 9);
1069         if (tl->track != 0xb3)
1070                 return (tl);
1071         tl = (struct sony_tracklist *)((char *)tl + 9);
1072         if (tl->track != 0xb4)
1073                 return (tl);
1074         tl = (struct sony_tracklist *)((char *)tl + 9);
1075         if (tl->track != 0xc0)
1076                 return (tl);
1077         tl = (struct sony_tracklist *)((char *)tl + 9);
1078         return (tl);
1079 }
1080
1081 static int
1082 read_toc(struct scd_softc *sc)
1083 {
1084         struct sony_toc toc;
1085         struct sony_tracklist *tl;
1086         int rc, i, j;
1087         u_long first, last;
1088
1089         rc = send_cmd(sc, CMD_GET_TOC, 1, 1);
1090         if (rc < 0)
1091                 return (rc);
1092         if (rc > sizeof(toc)) {
1093                 device_printf(sc->dev, "program error: toc too large (%d)\n", rc);
1094                 return (EIO);
1095         }
1096         if (get_result(sc, rc, (u_char *)&toc) != 0)
1097                 return (EIO);
1098
1099         XDEBUG(sc, 1, "toc read. len = %d, sizeof(toc) = %d\n", rc, sizeof(toc));
1100
1101         tl = get_tl(&toc, rc);
1102         first = msf2hsg(tl->start_msf);
1103         last = msf2hsg(toc.lead_out_start_msf);
1104         sc->data.blksize = SCDBLKSIZE;
1105         sc->data.disksize = last*sc->data.blksize/DEV_BSIZE;
1106
1107         XDEBUG(sc, 1, "firstsector = %ld, lastsector = %ld", first, last);
1108
1109         sc->data.first_track = bcd2bin(toc.first_track);
1110         sc->data.last_track = bcd2bin(toc.last_track);
1111         if (sc->data.last_track > (MAX_TRACKS-2))
1112                 sc->data.last_track = MAX_TRACKS-2;
1113         for (j = 0, i = sc->data.first_track; i <= sc->data.last_track; i++, j++) {
1114                 sc->data.toc[i].adr = tl[j].adr;
1115                 sc->data.toc[i].ctl = tl[j].ctl; /* for xcdplayer */
1116                 bcopy(tl[j].start_msf, sc->data.toc[i].start_msf, 3);
1117 #ifdef SCD_DEBUG
1118                 if (scd_debuglevel > 0) {
1119                         if ((j % 3) == 0) {
1120                                 printf("\n");
1121                                 device_printf(sc->dev, "tracks ");
1122                         }
1123                         printf("[%03d: %2d %2d %2d]  ", i,
1124                                 bcd2bin(sc->data.toc[i].start_msf[0]),
1125                                 bcd2bin(sc->data.toc[i].start_msf[1]),
1126                                 bcd2bin(sc->data.toc[i].start_msf[2]));
1127                 }
1128 #endif
1129         }
1130         bcopy(toc.lead_out_start_msf, sc->data.toc[sc->data.last_track+1].start_msf, 3);
1131 #ifdef SCD_DEBUG
1132         if (scd_debuglevel > 0) {
1133                 i = sc->data.last_track+1;
1134                 printf("[END: %2d %2d %2d]\n",
1135                         bcd2bin(sc->data.toc[i].start_msf[0]),
1136                         bcd2bin(sc->data.toc[i].start_msf[1]),
1137                         bcd2bin(sc->data.toc[i].start_msf[2]));
1138         }
1139 #endif
1140
1141         sc->data.flags |= SCDTOC;
1142
1143         return (0);
1144 }
1145
1146 static void
1147 init_drive(struct scd_softc *sc)
1148 {
1149         int rc;
1150
1151         rc = send_cmd(sc, CMD_SET_DRIVE_PARAM, 2,
1152                 0x05, 0x03 | ((sc->data.double_speed) ? 0x04: 0));
1153         if (rc != 0)
1154                 device_printf(sc->dev, "Unable to set parameters. Errcode = 0x%x\n", rc);
1155 }
1156
1157 /* Returns 0 or errno */
1158 static int
1159 get_result(struct scd_softc *sc, int result_len, u_char *result)
1160 {
1161         int loop_index = 2; /* send_cmd() reads two bytes ... */
1162
1163         XDEBUG(sc, 1, "DEBUG: get_result: bytes=%d\n", result_len);
1164
1165         while (result_len-- > 0) {
1166                 if (loop_index++ >= 10) {
1167                         loop_index = 1;
1168                         if (waitfor_status_bits(sc, SBIT_RESULT_READY, 0))
1169                                 return (EIO);
1170                         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1171                 }
1172                 if (result)
1173                         *result++ = SCD_READ(sc, IREG_RESULT);
1174                 else
1175                         (void)SCD_READ(sc, IREG_RESULT);
1176         }
1177         return (0);
1178 }
1179
1180 /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */
1181 static int
1182 send_cmd(struct scd_softc *sc, u_char cmd, u_int nargs, ...)
1183 {
1184         va_list ap;
1185         u_char c;
1186         int rc;
1187         int i;
1188
1189         if (waitfor_status_bits(sc, 0, SBIT_BUSY)) {
1190                 device_printf(sc->dev, "drive busy\n");
1191                 return (-0x100);
1192         }
1193
1194         XDEBUG(sc, 1, "DEBUG: send_cmd: cmd=0x%x nargs=%d", cmd, nargs);
1195
1196         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1197         SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR);
1198
1199         for (i = 0; i < 100; i++)
1200                 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY))
1201                         break;
1202         if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) {
1203                 XDEBUG(sc, 1, "\nwparam timeout\n");
1204                 return (-EIO);
1205         }
1206
1207         va_start(ap, nargs);
1208         for (i = 0; i < nargs; i++) {
1209                 c = (u_char)va_arg(ap, int);
1210                 SCD_WRITE(sc, OREG_WPARAMS, c);
1211                 XDEBUG(sc, 1, ",{0x%x}", c);
1212         }
1213         va_end(ap);
1214         XDEBUG(sc, 1, "\n");
1215
1216         SCD_WRITE(sc, OREG_COMMAND, cmd);
1217
1218         rc = waitfor_status_bits(sc, SBIT_RESULT_READY, SBIT_BUSY);
1219         if (rc)
1220                 return (-0x100);
1221
1222         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1223         switch ((rc = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
1224         case 0x20:
1225                 rc = SCD_READ(sc, IREG_RESULT);
1226                 /* FALLTHROUGH */
1227         case 0x50:
1228                 XDEBUG(sc, 1, "DEBUG: send_cmd: drive_error=0x%x\n", rc);
1229                 return (-rc);
1230         case 0x00:
1231         default:
1232                 rc = SCD_READ(sc, IREG_RESULT);
1233                 XDEBUG(sc, 1, "DEBUG: send_cmd: result_len=%d\n", rc);
1234                 return (rc);
1235         }
1236 }
1237
1238 static void
1239 print_error(struct scd_softc *sc, int errcode)
1240 {
1241
1242         switch (errcode) {
1243         case -ERR_CD_NOT_LOADED:
1244                 device_printf(sc->dev, "door is open\n");
1245                 break;
1246         case -ERR_NO_CD_INSIDE:
1247                 device_printf(sc->dev, "no cd inside\n");
1248                 break;
1249         default:
1250                 if (errcode == -0x100 || errcode > 0)
1251                         device_printf(sc->dev, "device timeout\n");
1252                 else
1253                         device_printf(sc->dev, "unexpected error 0x%x\n", -errcode);
1254                 break;
1255         }
1256 }
1257
1258 /* Returns 0 or errno value */
1259 static int
1260 waitfor_status_bits(struct scd_softc *sc, int bits_set, int bits_clear)
1261 {
1262         u_int flags = sc->data.flags;
1263         u_int max_loop;
1264         u_char c = 0;
1265
1266         if (flags & SCDPROBING) {
1267                 max_loop = 0;
1268                 while (max_loop++ < 1000) {
1269                         c = SCD_READ(sc, IREG_STATUS);
1270                         if (c == 0xff)
1271                                 return (EIO);
1272                         if (c & SBIT_ATTENTION) {
1273                                 process_attention(sc);
1274                                 continue;
1275                         }
1276                         if ((c & bits_set) == bits_set &&
1277                             (c & bits_clear) == 0)
1278                         {
1279                                 break;
1280                         }
1281                         DELAY(10000);
1282                 }
1283         } else {
1284                 max_loop = 100;
1285                 while (max_loop-- > 0) {
1286                         c = SCD_READ(sc, IREG_STATUS);
1287                         if (c & SBIT_ATTENTION) {
1288                                 process_attention(sc);
1289                                 continue;
1290                         }
1291                         if ((c & bits_set) == bits_set &&
1292                             (c & bits_clear) == 0)
1293                         {
1294                                 break;
1295                         }
1296                         pause("waitfor", hz/10);
1297                 }
1298         }
1299         if ((c & bits_set) == bits_set &&
1300             (c & bits_clear) == 0)
1301         {
1302                 return (0);
1303         }
1304 #ifdef SCD_DEBUG
1305         if (scd_debuglevel > 0)
1306                 device_printf(sc->dev, "DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", c, bits_set, bits_clear);
1307         else
1308 #endif
1309                 device_printf(sc->dev, "timeout.\n");
1310         return (EIO);
1311 }
1312
1313 /* these two routines for xcdplayer - "borrowed" from mcd.c */
1314 static int
1315 scd_toc_header (struct scd_softc *sc, struct ioc_toc_header* th)
1316 {
1317         int rc;
1318
1319         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1320                 print_error(sc, rc);
1321                 return (EIO);
1322         }
1323
1324         th->starting_track = sc->data.first_track;
1325         th->ending_track = sc->data.last_track;
1326         th->len = 0; /* not used */
1327
1328         return (0);
1329 }
1330
1331 static int
1332 scd_toc_entrys (struct scd_softc *sc, struct ioc_read_toc_entry *te)
1333 {
1334         struct cd_toc_entry toc_entry;
1335         int rc, i, len = te->data_len;
1336
1337         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1338                 print_error(sc, rc);
1339                 return (EIO);
1340         }
1341
1342         /* find the toc to copy*/
1343         i = te->starting_track;
1344         if (i == SCD_LASTPLUS1)
1345                 i = sc->data.last_track + 1;
1346
1347         /* verify starting track */
1348         if (i < sc->data.first_track || i > sc->data.last_track+1)
1349                 return (EINVAL);
1350
1351         /* valid length ? */
1352         if (len < sizeof(struct cd_toc_entry)
1353             || (len % sizeof(struct cd_toc_entry)) != 0)
1354                 return (EINVAL);
1355
1356         /* copy the toc data */
1357         toc_entry.control = sc->data.toc[i].ctl;
1358         toc_entry.addr_type = te->address_format;
1359         toc_entry.track = i;
1360         if (te->address_format == CD_MSF_FORMAT) {
1361                 toc_entry.addr.msf.unused = 0;
1362                 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]);
1363                 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]);
1364                 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]);
1365         }
1366
1367         /* copy the data back */
1368         if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0)
1369                 return (EFAULT);
1370
1371         return (0);
1372 }
1373
1374
1375 static int
1376 scd_toc_entry (struct scd_softc *sc, struct ioc_read_toc_single_entry *te)
1377 {
1378         struct cd_toc_entry toc_entry;
1379         int rc, i;
1380
1381         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1382                 print_error(sc, rc);
1383                 return (EIO);
1384         }
1385
1386         /* find the toc to copy*/
1387         i = te->track;
1388         if (i == SCD_LASTPLUS1)
1389                 i = sc->data.last_track + 1;
1390
1391         /* verify starting track */
1392         if (i < sc->data.first_track || i > sc->data.last_track+1)
1393                 return (EINVAL);
1394
1395         /* copy the toc data */
1396         toc_entry.control = sc->data.toc[i].ctl;
1397         toc_entry.addr_type = te->address_format;
1398         toc_entry.track = i;
1399         if (te->address_format == CD_MSF_FORMAT) {
1400                 toc_entry.addr.msf.unused = 0;
1401                 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]);
1402                 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]);
1403                 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]);
1404         }
1405
1406         /* copy the data back */
1407         bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry));
1408
1409         return (0);
1410 }