Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/scd/scd.c
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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 /* $FreeBSD: releng/5.0/sys/dev/scd/scd.c 106719 2002-11-10 03:45:49Z mdodd $ */ 44 45 #undef SCD_DEBUG 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/conf.h> 51 #include <sys/fcntl.h> 52 #include <sys/bio.h> 53 #include <sys/cdio.h> 54 #include <sys/disk.h> 55 #include <sys/bus.h> 56 57 #include <machine/stdarg.h> 58 59 #include <machine/bus_pio.h> 60 #include <machine/bus.h> 61 #include <machine/resource.h> 62 #include <sys/rman.h> 63 64 #include <isa/isavar.h> 65 66 #include <dev/scd/scdreg.h> 67 #include <dev/scd/scdvar.h> 68 69 /* flags */ 70 #define SCDOPEN 0x0001 /* device opened */ 71 #define SCDVALID 0x0002 /* parameters loaded */ 72 #define SCDINIT 0x0004 /* device is init'd */ 73 #define SCDPROBING 0x0020 /* probing */ 74 #define SCDTOC 0x0100 /* already read toc */ 75 #define SCDMBXBSY 0x0200 /* local mbx is busy */ 76 #define SCDSPINNING 0x0400 /* drive is spun up */ 77 78 #define SCD_S_BEGIN 0 79 #define SCD_S_BEGIN1 1 80 #define SCD_S_WAITSTAT 2 81 #define SCD_S_WAITFIFO 3 82 #define SCD_S_WAITSPIN 4 83 #define SCD_S_WAITREAD 5 84 #define SCD_S_WAITPARAM 6 85 86 #define RDELAY_WAIT 300 87 #define RDELAY_WAITREAD 300 88 89 #define SCDBLKSIZE 2048 90 91 #ifdef SCD_DEBUG 92 static int scd_debuglevel = SCD_DEBUG; 93 # define XDEBUG(sc, level, fmt, args...) \ 94 do { \ 95 if (scd_debuglevel >= level) \ 96 device_printf(sc->dev, fmt, ## args); \ 97 } while (0) 98 #else 99 # define XDEBUG(sc, level, fmt, args...) 100 #endif 101 102 #define IS_ATTENTION(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_ATTENTION) != 0) 103 #define IS_BUSY(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_BUSY) != 0) 104 #define IS_DATA_RDY(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_DATA_READY) != 0) 105 #define STATUS_BIT(sc, bit) ((SCD_READ(sc, IREG_STATUS) & (bit)) != 0) 106 #define FSTATUS_BIT(sc, bit) ((SCD_READ(sc, IREG_FSTATUS) & (bit)) != 0) 107 108 /* prototypes */ 109 static void hsg2msf(int hsg, bcd_t *msf); 110 static int msf2hsg(bcd_t *msf); 111 112 static void process_attention(struct scd_softc *); 113 static int waitfor_status_bits(struct scd_softc *, int bits_set, int bits_clear); 114 static int send_cmd(struct scd_softc *, u_char cmd, u_int nargs, ...); 115 static void init_drive(struct scd_softc *); 116 static int spin_up(struct scd_softc *); 117 static int read_toc(struct scd_softc *); 118 static int get_result(struct scd_softc *, int result_len, u_char *result); 119 static void print_error(struct scd_softc *, int errcode); 120 121 static void scd_start(struct scd_softc *); 122 static timeout_t scd_timeout; 123 static void scd_doread(struct scd_softc *, int state, struct scd_mbx *mbxin); 124 125 static int scd_eject(struct scd_softc *); 126 static int scd_stop(struct scd_softc *); 127 static int scd_pause(struct scd_softc *); 128 static int scd_resume(struct scd_softc *); 129 static int scd_playtracks(struct scd_softc *, struct ioc_play_track *pt); 130 static int scd_playmsf(struct scd_softc *, struct ioc_play_msf *msf); 131 static int scd_play(struct scd_softc *, struct ioc_play_msf *msf); 132 static int scd_subchan(struct scd_softc *, struct ioc_read_subchannel *sch); 133 static int read_subcode(struct scd_softc *, struct sony_subchannel_position_data *sch); 134 135 /* for xcdplayer */ 136 static int scd_toc_header(struct scd_softc *, struct ioc_toc_header *th); 137 static int scd_toc_entrys(struct scd_softc *, struct ioc_read_toc_entry *te); 138 static int scd_toc_entry(struct scd_softc *, struct ioc_read_toc_single_entry *te); 139 #define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */ 140 141 static d_open_t scdopen; 142 static d_close_t scdclose; 143 static d_ioctl_t scdioctl; 144 static d_strategy_t scdstrategy; 145 146 #define CDEV_MAJOR 45 147 148 static struct cdevsw scd_cdevsw = { 149 /* open */ scdopen, 150 /* close */ scdclose, 151 /* read */ physread, 152 /* write */ nowrite, 153 /* ioctl */ scdioctl, 154 /* poll */ nopoll, 155 /* mmap */ nommap, 156 /* strategy */ scdstrategy, 157 /* name */ "scd", 158 /* maj */ CDEV_MAJOR, 159 /* dump */ nodump, 160 /* psize */ nopsize, 161 /* flags */ D_DISK, 162 }; 163 164 int 165 scd_attach(struct scd_softc *sc) 166 { 167 int unit; 168 169 unit = device_get_unit(sc->dev); 170 171 init_drive(sc); 172 173 sc->data.flags = SCDINIT; 174 sc->data.audio_status = CD_AS_AUDIO_INVALID; 175 bioq_init(&sc->data.head); 176 177 sc->scd_dev_t = make_dev(&scd_cdevsw, 8 * unit, 178 UID_ROOT, GID_OPERATOR, 0640, "scd%d", unit); 179 sc->scd_dev_t->si_drv1 = (void *)sc; 180 181 return (0); 182 } 183 184 static int 185 scdopen(dev_t dev, int flags, int fmt, struct thread *td) 186 { 187 struct scd_softc *sc; 188 int rc; 189 190 sc = (struct scd_softc *)dev->si_drv1; 191 192 /* not initialized*/ 193 if (!(sc->data.flags & SCDINIT)) 194 return (ENXIO); 195 196 /* invalidated in the meantime? mark all open part's invalid */ 197 if (sc->data.openflag) 198 return (ENXIO); 199 200 XDEBUG(sc, 1, "DEBUG: status = 0x%x\n", SCD_READ(sc, IREG_STATUS)); 201 202 if ((rc = spin_up(sc)) != 0) { 203 print_error(sc, rc); 204 return (EIO); 205 } 206 if (!(sc->data.flags & SCDTOC)) { 207 int loop_count = 3; 208 209 while (loop_count-- > 0 && (rc = read_toc(sc)) != 0) { 210 if (rc == ERR_NOT_SPINNING) { 211 rc = spin_up(sc); 212 if (rc) { 213 print_error(sc, rc);\ 214 return (EIO); 215 } 216 continue; 217 } 218 device_printf(sc->dev, "TOC read error 0x%x\n", rc); 219 return (EIO); 220 } 221 } 222 223 dev->si_bsize_phys = sc->data.blksize; 224 225 sc->data.openflag = 1; 226 sc->data.flags |= SCDVALID; 227 228 return (0); 229 } 230 231 static int 232 scdclose(dev_t dev, int flags, int fmt, struct thread *td) 233 { 234 struct scd_softc *sc; 235 236 sc = (struct scd_softc *)dev->si_drv1; 237 238 if (!(sc->data.flags & SCDINIT) || !sc->data.openflag) 239 return (ENXIO); 240 241 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) { 242 (void)send_cmd(sc, CMD_SPIN_DOWN, 0); 243 sc->data.flags &= ~SCDSPINNING; 244 } 245 246 247 /* close channel */ 248 sc->data.openflag = 0; 249 250 return (0); 251 } 252 253 static void 254 scdstrategy(struct bio *bp) 255 { 256 int s; 257 struct scd_softc *sc; 258 259 sc = (struct scd_softc *)bp->bio_dev->si_drv1; 260 261 XDEBUG(sc, 2, "DEBUG: strategy: block=%ld, bcount=%ld\n", 262 (long)bp->bio_blkno, bp->bio_bcount); 263 264 if (bp->bio_blkno < 0 || (bp->bio_bcount % SCDBLKSIZE)) { 265 device_printf(sc->dev, "strategy failure: blkno = %ld, bcount = %ld\n", 266 (long)bp->bio_blkno, bp->bio_bcount); 267 bp->bio_error = EINVAL; 268 bp->bio_flags |= BIO_ERROR; 269 goto bad; 270 } 271 272 /* if device invalidated (e.g. media change, door open), error */ 273 if (!(sc->data.flags & SCDVALID)) { 274 device_printf(sc->dev, "media changed\n"); 275 bp->bio_error = EIO; 276 goto bad; 277 } 278 279 /* read only */ 280 if (!(bp->bio_cmd == BIO_READ)) { 281 bp->bio_error = EROFS; 282 goto bad; 283 } 284 285 /* no data to read */ 286 if (bp->bio_bcount == 0) 287 goto done; 288 289 if (!(sc->data.flags & SCDTOC)) { 290 bp->bio_error = EIO; 291 goto bad; 292 } 293 294 bp->bio_pblkno = bp->bio_blkno; 295 bp->bio_resid = 0; 296 297 /* queue it */ 298 s = splbio(); 299 bioqdisksort(&sc->data.head, bp); 300 splx(s); 301 302 /* now check whether we can perform processing */ 303 scd_start(sc); 304 return; 305 306 bad: 307 bp->bio_flags |= BIO_ERROR; 308 done: 309 bp->bio_resid = bp->bio_bcount; 310 biodone(bp); 311 return; 312 } 313 314 static void 315 scd_start(struct scd_softc *sc) 316 { 317 struct bio *bp; 318 int s = splbio(); 319 320 if (sc->data.flags & SCDMBXBSY) { 321 splx(s); 322 return; 323 } 324 325 bp = bioq_first(&sc->data.head); 326 if (bp != 0) { 327 /* block found to process, dequeue */ 328 bioq_remove(&sc->data.head, bp); 329 sc->data.flags |= SCDMBXBSY; 330 splx(s); 331 } else { 332 /* nothing to do */ 333 splx(s); 334 return; 335 } 336 337 sc->data.mbx.retry = 3; 338 sc->data.mbx.bp = bp; 339 splx(s); 340 341 scd_doread(sc, SCD_S_BEGIN, &(sc->data.mbx)); 342 return; 343 } 344 345 static int 346 scdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct thread *td) 347 { 348 struct scd_softc *sc; 349 350 sc = (struct scd_softc *)dev->si_drv1; 351 352 XDEBUG(sc, 1, "ioctl: cmd=0x%lx\n", cmd); 353 354 if (!(sc->data.flags & SCDVALID)) 355 return (EIO); 356 357 switch (cmd) { 358 case DIOCGMEDIASIZE: 359 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize; 360 return (0); 361 break; 362 case DIOCGSECTORSIZE: 363 *(u_int *)addr = sc->data.blksize; 364 return (0); 365 break; 366 case CDIOCPLAYTRACKS: 367 return scd_playtracks(sc, (struct ioc_play_track *) addr); 368 case CDIOCPLAYBLOCKS: 369 return (EINVAL); 370 case CDIOCPLAYMSF: 371 return scd_playmsf(sc, (struct ioc_play_msf *) addr); 372 case CDIOCREADSUBCHANNEL: 373 return scd_subchan(sc, (struct ioc_read_subchannel *) addr); 374 case CDIOREADTOCHEADER: 375 return scd_toc_header (sc, (struct ioc_toc_header *) addr); 376 case CDIOREADTOCENTRYS: 377 return scd_toc_entrys (sc, (struct ioc_read_toc_entry*) addr); 378 case CDIOREADTOCENTRY: 379 return scd_toc_entry (sc, (struct ioc_read_toc_single_entry*) addr); 380 case CDIOCSETPATCH: 381 case CDIOCGETVOL: 382 case CDIOCSETVOL: 383 case CDIOCSETMONO: 384 case CDIOCSETSTERIO: 385 case CDIOCSETMUTE: 386 case CDIOCSETLEFT: 387 case CDIOCSETRIGHT: 388 return (EINVAL); 389 case CDIOCRESUME: 390 return scd_resume(sc); 391 case CDIOCPAUSE: 392 return scd_pause(sc); 393 case CDIOCSTART: 394 return (EINVAL); 395 case CDIOCSTOP: 396 return scd_stop(sc); 397 case CDIOCEJECT: 398 return scd_eject(sc); 399 case CDIOCALLOW: 400 return (0); 401 case CDIOCSETDEBUG: 402 #ifdef SCD_DEBUG 403 scd_debuglevel++; 404 #endif 405 return (0); 406 case CDIOCCLRDEBUG: 407 #ifdef SCD_DEBUG 408 scd_debuglevel = 0; 409 410 #endif 411 return (0); 412 default: 413 device_printf(sc->dev, "unsupported ioctl (cmd=0x%lx)\n", cmd); 414 return (ENOTTY); 415 } 416 } 417 418 /*************************************************************** 419 * lower level of driver starts here 420 **************************************************************/ 421 422 static int 423 scd_playtracks(struct scd_softc *sc, struct ioc_play_track *pt) 424 { 425 struct ioc_play_msf msf; 426 int a = pt->start_track; 427 int z = pt->end_track; 428 int rc; 429 430 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 431 if (rc == -ERR_NOT_SPINNING) { 432 if (spin_up(sc) != 0) 433 return (EIO); 434 rc = read_toc(sc); 435 } 436 if (rc != 0) { 437 print_error(sc, rc); 438 return (EIO); 439 } 440 } 441 442 XDEBUG(sc, 1, "playtracks from %d:%d to %d:%d\n", 443 a, pt->start_index, z, pt->end_index); 444 445 if ( a < sc->data.first_track 446 || a > sc->data.last_track 447 || a > z 448 || z > sc->data.last_track) 449 return (EINVAL); 450 451 bcopy(sc->data.toc[a].start_msf, &msf.start_m, 3); 452 hsg2msf(msf2hsg(sc->data.toc[z+1].start_msf)-1, &msf.end_m); 453 454 return scd_play(sc, &msf); 455 } 456 457 /* The start/end msf is expected to be in bin format */ 458 static int 459 scd_playmsf(struct scd_softc *sc, struct ioc_play_msf *msfin) 460 { 461 struct ioc_play_msf msf; 462 463 msf.start_m = bin2bcd(msfin->start_m); 464 msf.start_s = bin2bcd(msfin->start_s); 465 msf.start_f = bin2bcd(msfin->start_f); 466 msf.end_m = bin2bcd(msfin->end_m); 467 msf.end_s = bin2bcd(msfin->end_s); 468 msf.end_f = bin2bcd(msfin->end_f); 469 470 return scd_play(sc, &msf); 471 } 472 473 /* The start/end msf is expected to be in bcd format */ 474 static int 475 scd_play(struct scd_softc *sc, struct ioc_play_msf *msf) 476 { 477 int i, rc; 478 479 XDEBUG(sc, 1, "playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", 480 msf->start_m, msf->start_s, msf->start_f, 481 msf->end_m, msf->end_s, msf->end_f); 482 483 for (i = 0; i < 2; i++) { 484 rc = send_cmd(sc, CMD_PLAY_AUDIO, 7, 485 0x03, 486 msf->start_m, msf->start_s, msf->start_f, 487 msf->end_m, msf->end_s, msf->end_f); 488 if (rc == -ERR_NOT_SPINNING) { 489 sc->data.flags &= ~SCDSPINNING; 490 if (spin_up(sc) != 0) 491 return (EIO); 492 } else if (rc < 0) { 493 print_error(sc, rc); 494 return (EIO); 495 } else { 496 break; 497 } 498 } 499 sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS; 500 bcopy((char *)msf, (char *)&sc->data.last_play, sizeof(struct ioc_play_msf)); 501 return (0); 502 } 503 504 static int 505 scd_stop(struct scd_softc *sc) 506 { 507 508 (void)send_cmd(sc, CMD_STOP_AUDIO, 0); 509 sc->data.audio_status = CD_AS_PLAY_COMPLETED; 510 return (0); 511 } 512 513 static int 514 scd_pause(struct scd_softc *sc) 515 { 516 struct sony_subchannel_position_data subpos; 517 518 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) 519 return (EINVAL); 520 521 if (read_subcode(sc, &subpos) != 0) 522 return (EIO); 523 524 if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0) 525 return (EIO); 526 527 sc->data.last_play.start_m = subpos.abs_msf[0]; 528 sc->data.last_play.start_s = subpos.abs_msf[1]; 529 sc->data.last_play.start_f = subpos.abs_msf[2]; 530 sc->data.audio_status = CD_AS_PLAY_PAUSED; 531 532 XDEBUG(sc, 1, "pause @ %02x:%02x:%02x\n", 533 sc->data.last_play.start_m, 534 sc->data.last_play.start_s, 535 sc->data.last_play.start_f); 536 537 return (0); 538 } 539 540 static int 541 scd_resume(struct scd_softc *sc) 542 { 543 544 if (sc->data.audio_status != CD_AS_PLAY_PAUSED) 545 return (EINVAL); 546 return scd_play(sc, &sc->data.last_play); 547 } 548 549 static int 550 scd_eject(struct scd_softc *sc) 551 { 552 553 sc->data.audio_status = CD_AS_AUDIO_INVALID; 554 sc->data.flags &= ~(SCDSPINNING|SCDTOC); 555 556 if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0 || 557 send_cmd(sc, CMD_SPIN_DOWN, 0) != 0 || 558 send_cmd(sc, CMD_EJECT, 0) != 0) 559 { 560 return (EIO); 561 } 562 return (0); 563 } 564 565 static int 566 scd_subchan(struct scd_softc *sc, struct ioc_read_subchannel *sch) 567 { 568 struct sony_subchannel_position_data q; 569 struct cd_sub_channel_info data; 570 571 XDEBUG(sc, 1, "subchan af=%d, df=%d\n", 572 sch->address_format, sch->data_format); 573 574 if (sch->address_format != CD_MSF_FORMAT) 575 return (EINVAL); 576 577 if (sch->data_format != CD_CURRENT_POSITION) 578 return (EINVAL); 579 580 if (read_subcode(sc, &q) != 0) 581 return (EIO); 582 583 data.header.audio_status = sc->data.audio_status; 584 data.what.position.data_format = CD_MSF_FORMAT; 585 data.what.position.track_number = bcd2bin(q.track_number); 586 data.what.position.reladdr.msf.unused = 0; 587 data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]); 588 data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]); 589 data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]); 590 data.what.position.absaddr.msf.unused = 0; 591 data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]); 592 data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]); 593 data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]); 594 595 if (copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len))!=0) 596 return (EFAULT); 597 return (0); 598 } 599 600 int 601 scd_probe(struct scd_softc *sc) 602 { 603 struct sony_drive_configuration drive_config; 604 int rc; 605 static char namebuf[8+16+8+3]; 606 char *s = namebuf; 607 int loop_count = 0; 608 609 sc->data.flags = SCDPROBING; 610 611 bzero(&drive_config, sizeof(drive_config)); 612 613 again: 614 /* Reset drive */ 615 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESET_DRIVE); 616 617 /* Calm down */ 618 DELAY(300000); 619 620 /* Only the ATTENTION bit may be set */ 621 if ((SCD_READ(sc, IREG_STATUS) & ~1) != 0) { 622 XDEBUG(sc, 1, "too many bits set. probe failed.\n"); 623 return (ENXIO); 624 } 625 rc = send_cmd(sc, CMD_GET_DRIVE_CONFIG, 0); 626 if (rc != sizeof(drive_config)) { 627 /* Sometimes if the drive is playing audio I get */ 628 /* the bad result 82. Fix by repeating the reset */ 629 if (rc > 0 && loop_count++ == 0) 630 goto again; 631 return (ENXIO); 632 } 633 if (get_result(sc, rc, (u_char *)&drive_config) != 0) 634 return (ENXIO); 635 636 bcopy(drive_config.vendor, namebuf, 8); 637 s = namebuf+8; 638 while (*(s-1) == ' ') /* Strip trailing spaces */ 639 s--; 640 *s++ = ' '; 641 bcopy(drive_config.product, s, 16); 642 s += 16; 643 while (*(s-1) == ' ') 644 s--; 645 *s++ = ' '; 646 bcopy(drive_config.revision, s, 8); 647 s += 8; 648 while (*(s-1) == ' ') 649 s--; 650 *s = 0; 651 652 sc->data.name = namebuf; 653 654 if (drive_config.config & 0x10) 655 sc->data.double_speed = 1; 656 else 657 sc->data.double_speed = 0; 658 659 return (0); 660 } 661 662 static int 663 read_subcode(struct scd_softc *sc, struct sony_subchannel_position_data *scp) 664 { 665 int rc; 666 667 rc = send_cmd(sc, CMD_GET_SUBCHANNEL_DATA, 0); 668 if (rc < 0 || rc < sizeof(*scp)) 669 return (EIO); 670 if (get_result(sc, rc, (u_char *)scp) != 0) 671 return (EIO); 672 return (0); 673 } 674 675 /* State machine copied from mcd.c */ 676 677 /* This (and the code in mcd.c) will not work with more than one drive */ 678 /* because there is only one sc->ch_mbxsave below. Should fix that some day. */ 679 /* (sc->ch_mbxsave & state should probably be included in the scd_data struct and */ 680 /* the unit number used as first argument to scd_doread().) /Micke */ 681 682 /* state machine to process read requests 683 * initialize with SCD_S_BEGIN: reset state machine 684 * SCD_S_WAITSTAT: wait for ready (!busy) 685 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) 686 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. 687 * SCD_S_WAITREAD: wait for data ready, read data 688 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. 689 */ 690 691 static void 692 scd_timeout(void *arg) 693 { 694 struct scd_softc *sc; 695 sc = (struct scd_softc *)arg; 696 697 scd_doread(sc, sc->ch_state, sc->ch_mbxsave); 698 } 699 700 static void 701 scd_doread(struct scd_softc *sc, int state, struct scd_mbx *mbxin) 702 { 703 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? sc->ch_mbxsave : mbxin; 704 struct bio *bp = mbx->bp; 705 int i; 706 int blknum; 707 caddr_t addr; 708 static char sdata[3]; /* Must be preserved between calls to this function */ 709 710 loop: 711 switch (state) { 712 case SCD_S_BEGIN: 713 mbx = sc->ch_mbxsave = mbxin; 714 715 case SCD_S_BEGIN1: 716 /* get status */ 717 mbx->count = RDELAY_WAIT; 718 719 process_attention(sc); 720 goto trystat; 721 722 case SCD_S_WAITSTAT: 723 sc->ch_state = SCD_S_WAITSTAT; 724 untimeout(scd_timeout, (caddr_t)sc, sc->ch); 725 if (mbx->count-- <= 0) { 726 device_printf(sc->dev, "timeout. drive busy.\n"); 727 goto harderr; 728 } 729 730 trystat: 731 if (IS_BUSY(sc)) { 732 sc->ch_state = SCD_S_WAITSTAT; 733 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 734 return; 735 } 736 737 process_attention(sc); 738 739 /* reject, if audio active */ 740 if (sc->data.audio_status & CD_AS_PLAY_IN_PROGRESS) { 741 device_printf(sc->dev, "audio is active\n"); 742 goto harderr; 743 } 744 745 mbx->sz = sc->data.blksize; 746 747 /* for first block */ 748 mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz; 749 mbx->skip = 0; 750 751 nextblock: 752 if (!(sc->data.flags & SCDVALID)) 753 goto changed; 754 755 blknum = (bp->bio_blkno / (mbx->sz/DEV_BSIZE)) 756 + mbx->skip/mbx->sz; 757 758 XDEBUG(sc, 2, "scd_doread: read blknum=%d\n", blknum); 759 760 /* build parameter block */ 761 hsg2msf(blknum, sdata); 762 763 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 764 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); 765 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); 766 767 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) 768 goto writeparam; 769 770 mbx->count = 100; 771 sc->ch_state = SCD_S_WAITFIFO; 772 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 773 return; 774 775 case SCD_S_WAITSPIN: 776 sc->ch_state = SCD_S_WAITSPIN; 777 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 778 if (mbx->count-- <= 0) { 779 device_printf(sc->dev, "timeout waiting for drive to spin up.\n"); 780 goto harderr; 781 } 782 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { 783 sc->ch_state = SCD_S_WAITSPIN; 784 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 785 return; 786 } 787 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 788 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 789 case 0x20: 790 i = SCD_READ(sc, IREG_RESULT); 791 print_error(sc, i); 792 goto harderr; 793 case 0x00: 794 (void)SCD_READ(sc, IREG_RESULT); 795 sc->data.flags |= SCDSPINNING; 796 break; 797 } 798 XDEBUG(sc, 1, "DEBUG: spin up complete\n"); 799 800 state = SCD_S_BEGIN1; 801 goto loop; 802 803 case SCD_S_WAITFIFO: 804 sc->ch_state = SCD_S_WAITFIFO; 805 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 806 if (mbx->count-- <= 0) { 807 device_printf(sc->dev, "timeout. write param not ready.\n"); 808 goto harderr; 809 } 810 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { 811 sc->ch_state = SCD_S_WAITFIFO; 812 sc->ch = timeout(scd_timeout, (caddr_t)sc,hz/100); /* XXX */ 813 return; 814 } 815 XDEBUG(sc, 1, "mbx->count (writeparamwait) = %d(%d)\n", mbx->count, 100); 816 817 writeparam: 818 /* The reason this test isn't done 'till now is to make sure */ 819 /* that it is ok to send the SPIN_UP cmd below. */ 820 if (!(sc->data.flags & SCDSPINNING)) { 821 XDEBUG(sc, 1, "spinning up drive ...\n"); 822 SCD_WRITE(sc, OREG_COMMAND, CMD_SPIN_UP); 823 mbx->count = 300; 824 sc->ch_state = SCD_S_WAITSPIN; 825 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 826 return; 827 } 828 829 /* send the read command */ 830 critical_enter(); 831 SCD_WRITE(sc, OREG_WPARAMS, sdata[0]); 832 SCD_WRITE(sc, OREG_WPARAMS, sdata[1]); 833 SCD_WRITE(sc, OREG_WPARAMS, sdata[2]); 834 SCD_WRITE(sc, OREG_WPARAMS, 0); 835 SCD_WRITE(sc, OREG_WPARAMS, 0); 836 SCD_WRITE(sc, OREG_WPARAMS, 1); 837 SCD_WRITE(sc, OREG_COMMAND, CMD_READ); 838 critical_exit(); 839 840 mbx->count = RDELAY_WAITREAD; 841 for (i = 0; i < 50; i++) { 842 if (STATUS_BIT(sc, SBIT_DATA_READY)) 843 goto got_data; 844 DELAY(100); 845 } 846 847 sc->ch_state = SCD_S_WAITREAD; 848 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 849 return; 850 851 case SCD_S_WAITREAD: 852 sc->ch_state = SCD_S_WAITREAD; 853 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 854 if (mbx->count-- <= 0) { 855 if (STATUS_BIT(sc, SBIT_RESULT_READY)) 856 goto got_param; 857 device_printf(sc->dev, "timeout while reading data\n"); 858 goto readerr; 859 } 860 if (!STATUS_BIT(sc, SBIT_DATA_READY)) { 861 process_attention(sc); 862 if (!(sc->data.flags & SCDVALID)) 863 goto changed; 864 sc->ch_state = SCD_S_WAITREAD; 865 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 866 return; 867 } 868 XDEBUG(sc, 2, "mbx->count (after RDY_BIT) = %d(%d)\n", mbx->count, RDELAY_WAITREAD); 869 870 got_data: 871 /* data is ready */ 872 addr = bp->bio_data + mbx->skip; 873 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); 874 SCD_READ_MULTI(sc, IREG_DATA, addr, mbx->sz); 875 876 mbx->count = 100; 877 for (i = 0; i < 20; i++) { 878 if (STATUS_BIT(sc, SBIT_RESULT_READY)) 879 goto waitfor_param; 880 DELAY(100); 881 } 882 goto waitfor_param; 883 884 case SCD_S_WAITPARAM: 885 sc->ch_state = SCD_S_WAITPARAM; 886 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 887 if (mbx->count-- <= 0) { 888 device_printf(sc->dev, "timeout waiting for params\n"); 889 goto readerr; 890 } 891 892 waitfor_param: 893 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { 894 sc->ch_state = SCD_S_WAITPARAM; 895 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 896 return; 897 } 898 #ifdef SCD_DEBUG 899 if (mbx->count < 100 && scd_debuglevel > 0) 900 device_printf(sc->dev, "mbx->count (paramwait) = %d(%d)\n", mbx->count, 100); 901 #endif 902 903 got_param: 904 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 905 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 906 case 0x50: 907 switch (i) { 908 case ERR_FATAL_READ_ERROR1: 909 case ERR_FATAL_READ_ERROR2: 910 device_printf(sc->dev, "unrecoverable read error 0x%x\n", i); 911 goto harderr; 912 } 913 break; 914 case 0x20: 915 i = SCD_READ(sc, IREG_RESULT); 916 switch (i) { 917 case ERR_NOT_SPINNING: 918 XDEBUG(sc, 1, "read error: drive not spinning\n"); 919 if (mbx->retry-- > 0) { 920 state = SCD_S_BEGIN1; 921 sc->data.flags &= ~SCDSPINNING; 922 goto loop; 923 } 924 goto harderr; 925 default: 926 print_error(sc, i); 927 goto readerr; 928 } 929 case 0x00: 930 i = SCD_READ(sc, IREG_RESULT); 931 break; 932 } 933 934 if (--mbx->nblk > 0) { 935 mbx->skip += mbx->sz; 936 goto nextblock; 937 } 938 939 /* return buffer */ 940 bp->bio_resid = 0; 941 biodone(bp); 942 943 sc->data.flags &= ~SCDMBXBSY; 944 scd_start(sc); 945 return; 946 } 947 948 readerr: 949 if (mbx->retry-- > 0) { 950 device_printf(sc->dev, "retrying ...\n"); 951 state = SCD_S_BEGIN1; 952 goto loop; 953 } 954 harderr: 955 /* invalidate the buffer */ 956 bp->bio_error = EIO; 957 bp->bio_flags |= BIO_ERROR; 958 bp->bio_resid = bp->bio_bcount; 959 biodone(bp); 960 961 sc->data.flags &= ~SCDMBXBSY; 962 scd_start(sc); 963 return; 964 965 changed: 966 device_printf(sc->dev, "media changed\n"); 967 goto harderr; 968 } 969 970 static void 971 hsg2msf(int hsg, bcd_t *msf) 972 { 973 974 hsg += 150; 975 M_msf(msf) = bin2bcd(hsg / 4500); 976 hsg %= 4500; 977 S_msf(msf) = bin2bcd(hsg / 75); 978 F_msf(msf) = bin2bcd(hsg % 75); 979 } 980 981 static int 982 msf2hsg(bcd_t *msf) 983 { 984 985 return (bcd2bin(M_msf(msf)) * 60 + 986 bcd2bin(S_msf(msf))) * 75 + 987 bcd2bin(F_msf(msf)) - 150; 988 } 989 990 static void 991 process_attention(struct scd_softc *sc) 992 { 993 unsigned char code; 994 int count = 0; 995 996 while (IS_ATTENTION(sc) && count++ < 30) { 997 SCD_WRITE(sc, OREG_CONTROL, CBIT_ATTENTION_CLEAR); 998 code = SCD_READ(sc, IREG_RESULT); 999 1000 #ifdef SCD_DEBUG 1001 if (scd_debuglevel > 0) { 1002 if (count == 1) 1003 device_printf(sc->dev, "DEBUG: ATTENTIONS = 0x%x", code); 1004 else 1005 printf(",0x%x", code); 1006 } 1007 #endif 1008 1009 switch (code) { 1010 case ATTEN_SPIN_DOWN: 1011 sc->data.flags &= ~SCDSPINNING; 1012 break; 1013 1014 case ATTEN_SPIN_UP_DONE: 1015 sc->data.flags |= SCDSPINNING; 1016 break; 1017 1018 case ATTEN_AUDIO_DONE: 1019 sc->data.audio_status = CD_AS_PLAY_COMPLETED; 1020 break; 1021 1022 case ATTEN_DRIVE_LOADED: 1023 sc->data.flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); 1024 sc->data.audio_status = CD_AS_AUDIO_INVALID; 1025 break; 1026 1027 case ATTEN_EJECT_PUSHED: 1028 sc->data.flags &= ~SCDVALID; 1029 break; 1030 } 1031 DELAY(100); 1032 } 1033 #ifdef SCD_DEBUG 1034 if (scd_debuglevel > 0 && count > 0) 1035 printf("\n"); 1036 #endif 1037 } 1038 1039 /* Returns 0 OR sony error code */ 1040 static int 1041 spin_up(struct scd_softc *sc) 1042 { 1043 unsigned char res_reg[12]; 1044 unsigned int res_size; 1045 int rc; 1046 int loop_count = 0; 1047 1048 again: 1049 rc = send_cmd(sc, CMD_SPIN_UP, 0, 0, res_reg, &res_size); 1050 if (rc != 0) { 1051 XDEBUG(sc, 2, "CMD_SPIN_UP error 0x%x\n", rc); 1052 return (rc); 1053 } 1054 1055 if (!(sc->data.flags & SCDTOC)) { 1056 rc = send_cmd(sc, CMD_READ_TOC, 0); 1057 if (rc == ERR_NOT_SPINNING) { 1058 if (loop_count++ < 3) 1059 goto again; 1060 return (rc); 1061 } 1062 if (rc != 0) 1063 return (rc); 1064 } 1065 1066 sc->data.flags |= SCDSPINNING; 1067 1068 return (0); 1069 } 1070 1071 static struct sony_tracklist * 1072 get_tl(struct sony_toc *toc, int size) 1073 { 1074 struct sony_tracklist *tl = &toc->tracks[0]; 1075 1076 if (tl->track != 0xb0) 1077 return (tl); 1078 (char *)tl += 9; 1079 if (tl->track != 0xb1) 1080 return (tl); 1081 (char *)tl += 9; 1082 if (tl->track != 0xb2) 1083 return (tl); 1084 (char *)tl += 9; 1085 if (tl->track != 0xb3) 1086 return (tl); 1087 (char *)tl += 9; 1088 if (tl->track != 0xb4) 1089 return (tl); 1090 (char *)tl += 9; 1091 if (tl->track != 0xc0) 1092 return (tl); 1093 (char *)tl += 9; 1094 return (tl); 1095 } 1096 1097 static int 1098 read_toc(struct scd_softc *sc) 1099 { 1100 struct sony_toc toc; 1101 struct sony_tracklist *tl; 1102 int rc, i, j; 1103 u_long first, last; 1104 1105 rc = send_cmd(sc, CMD_GET_TOC, 1, 1); 1106 if (rc < 0) 1107 return (rc); 1108 if (rc > sizeof(toc)) { 1109 device_printf(sc->dev, "program error: toc too large (%d)\n", rc); 1110 return (EIO); 1111 } 1112 if (get_result(sc, rc, (u_char *)&toc) != 0) 1113 return (EIO); 1114 1115 XDEBUG(sc, 1, "toc read. len = %d, sizeof(toc) = %d\n", rc, sizeof(toc)); 1116 1117 tl = get_tl(&toc, rc); 1118 first = msf2hsg(tl->start_msf); 1119 last = msf2hsg(toc.lead_out_start_msf); 1120 sc->data.blksize = SCDBLKSIZE; 1121 sc->data.disksize = last*sc->data.blksize/DEV_BSIZE; 1122 1123 XDEBUG(sc, 1, "firstsector = %ld, lastsector = %ld", first, last); 1124 1125 sc->data.first_track = bcd2bin(toc.first_track); 1126 sc->data.last_track = bcd2bin(toc.last_track); 1127 if (sc->data.last_track > (MAX_TRACKS-2)) 1128 sc->data.last_track = MAX_TRACKS-2; 1129 for (j = 0, i = sc->data.first_track; i <= sc->data.last_track; i++, j++) { 1130 sc->data.toc[i].adr = tl[j].adr; 1131 sc->data.toc[i].ctl = tl[j].ctl; /* for xcdplayer */ 1132 bcopy(tl[j].start_msf, sc->data.toc[i].start_msf, 3); 1133 #ifdef SCD_DEBUG 1134 if (scd_debuglevel > 0) { 1135 if ((j % 3) == 0) { 1136 printf("\n"); 1137 device_printf(sc->dev, "tracks "); 1138 } 1139 printf("[%03d: %2d %2d %2d] ", i, 1140 bcd2bin(sc->data.toc[i].start_msf[0]), 1141 bcd2bin(sc->data.toc[i].start_msf[1]), 1142 bcd2bin(sc->data.toc[i].start_msf[2])); 1143 } 1144 #endif 1145 } 1146 bcopy(toc.lead_out_start_msf, sc->data.toc[sc->data.last_track+1].start_msf, 3); 1147 #ifdef SCD_DEBUG 1148 if (scd_debuglevel > 0) { 1149 i = sc->data.last_track+1; 1150 printf("[END: %2d %2d %2d]\n", 1151 bcd2bin(sc->data.toc[i].start_msf[0]), 1152 bcd2bin(sc->data.toc[i].start_msf[1]), 1153 bcd2bin(sc->data.toc[i].start_msf[2])); 1154 } 1155 #endif 1156 1157 sc->data.flags |= SCDTOC; 1158 1159 return (0); 1160 } 1161 1162 static void 1163 init_drive(struct scd_softc *sc) 1164 { 1165 int rc; 1166 1167 rc = send_cmd(sc, CMD_SET_DRIVE_PARAM, 2, 1168 0x05, 0x03 | ((sc->data.double_speed) ? 0x04: 0)); 1169 if (rc != 0) 1170 device_printf(sc->dev, "Unable to set parameters. Errcode = 0x%x\n", rc); 1171 } 1172 1173 /* Returns 0 or errno */ 1174 static int 1175 get_result(struct scd_softc *sc, int result_len, u_char *result) 1176 { 1177 int loop_index = 2; /* send_cmd() reads two bytes ... */ 1178 1179 XDEBUG(sc, 1, "DEBUG: get_result: bytes=%d\n", result_len); 1180 1181 while (result_len-- > 0) { 1182 if (loop_index++ >= 10) { 1183 loop_index = 1; 1184 if (waitfor_status_bits(sc, SBIT_RESULT_READY, 0)) 1185 return (EIO); 1186 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1187 } 1188 if (result) 1189 *result++ = SCD_READ(sc, IREG_RESULT); 1190 else 1191 (void)SCD_READ(sc, IREG_RESULT); 1192 } 1193 return (0); 1194 } 1195 1196 /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ 1197 static int 1198 send_cmd(struct scd_softc *sc, u_char cmd, u_int nargs, ...) 1199 { 1200 va_list ap; 1201 u_char c; 1202 int rc; 1203 int i; 1204 1205 if (waitfor_status_bits(sc, 0, SBIT_BUSY)) { 1206 device_printf(sc->dev, "drive busy\n"); 1207 return (-0x100); 1208 } 1209 1210 XDEBUG(sc, 1, "DEBUG: send_cmd: cmd=0x%x nargs=%d", cmd, nargs); 1211 1212 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1213 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); 1214 1215 for (i = 0; i < 100; i++) 1216 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) 1217 break; 1218 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { 1219 XDEBUG(sc, 1, "\nwparam timeout\n"); 1220 return (-EIO); 1221 } 1222 1223 va_start(ap, nargs); 1224 for (i = 0; i < nargs; i++) { 1225 c = (u_char)va_arg(ap, int); 1226 SCD_WRITE(sc, OREG_WPARAMS, c); 1227 XDEBUG(sc, 1, ",{0x%x}", c); 1228 } 1229 va_end(ap); 1230 XDEBUG(sc, 1, "\n"); 1231 1232 SCD_WRITE(sc, OREG_COMMAND, cmd); 1233 1234 rc = waitfor_status_bits(sc, SBIT_RESULT_READY, SBIT_BUSY); 1235 if (rc) 1236 return (-0x100); 1237 1238 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1239 switch ((rc = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 1240 case 0x20: 1241 rc = SCD_READ(sc, IREG_RESULT); 1242 /* FALLTHROUGH */ 1243 case 0x50: 1244 XDEBUG(sc, 1, "DEBUG: send_cmd: drive_error=0x%x\n", rc); 1245 return (-rc); 1246 case 0x00: 1247 default: 1248 rc = SCD_READ(sc, IREG_RESULT); 1249 XDEBUG(sc, 1, "DEBUG: send_cmd: result_len=%d\n", rc); 1250 return (rc); 1251 } 1252 } 1253 1254 static void 1255 print_error(struct scd_softc *sc, int errcode) 1256 { 1257 1258 switch (errcode) { 1259 case -ERR_CD_NOT_LOADED: 1260 device_printf(sc->dev, "door is open\n"); 1261 break; 1262 case -ERR_NO_CD_INSIDE: 1263 device_printf(sc->dev, "no cd inside\n"); 1264 break; 1265 default: 1266 if (errcode == -0x100 || errcode > 0) 1267 device_printf(sc->dev, "device timeout\n"); 1268 else 1269 device_printf(sc->dev, "unexpected error 0x%x\n", -errcode); 1270 break; 1271 } 1272 } 1273 1274 /* Returns 0 or errno value */ 1275 static int 1276 waitfor_status_bits(struct scd_softc *sc, int bits_set, int bits_clear) 1277 { 1278 u_int flags = sc->data.flags; 1279 u_int max_loop; 1280 u_char c = 0; 1281 1282 if (flags & SCDPROBING) { 1283 max_loop = 0; 1284 while (max_loop++ < 1000) { 1285 c = SCD_READ(sc, IREG_STATUS); 1286 if (c == 0xff) 1287 return (EIO); 1288 if (c & SBIT_ATTENTION) { 1289 process_attention(sc); 1290 continue; 1291 } 1292 if ((c & bits_set) == bits_set && 1293 (c & bits_clear) == 0) 1294 { 1295 break; 1296 } 1297 DELAY(10000); 1298 } 1299 } else { 1300 max_loop = 100; 1301 while (max_loop-- > 0) { 1302 c = SCD_READ(sc, IREG_STATUS); 1303 if (c & SBIT_ATTENTION) { 1304 process_attention(sc); 1305 continue; 1306 } 1307 if ((c & bits_set) == bits_set && 1308 (c & bits_clear) == 0) 1309 { 1310 break; 1311 } 1312 tsleep(waitfor_status_bits, PZERO - 1, "waitfor", hz/10); 1313 } 1314 } 1315 if ((c & bits_set) == bits_set && 1316 (c & bits_clear) == 0) 1317 { 1318 return (0); 1319 } 1320 #ifdef SCD_DEBUG 1321 if (scd_debuglevel > 0) 1322 device_printf(sc->dev, "DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", c, bits_set, bits_clear); 1323 else 1324 #endif 1325 device_printf(sc->dev, "timeout.\n"); 1326 return (EIO); 1327 } 1328 1329 /* these two routines for xcdplayer - "borrowed" from mcd.c */ 1330 static int 1331 scd_toc_header (struct scd_softc *sc, struct ioc_toc_header* th) 1332 { 1333 int rc; 1334 1335 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1336 print_error(sc, rc); 1337 return (EIO); 1338 } 1339 1340 th->starting_track = sc->data.first_track; 1341 th->ending_track = sc->data.last_track; 1342 th->len = 0; /* not used */ 1343 1344 return (0); 1345 } 1346 1347 static int 1348 scd_toc_entrys (struct scd_softc *sc, struct ioc_read_toc_entry *te) 1349 { 1350 struct cd_toc_entry toc_entry; 1351 int rc, i, len = te->data_len; 1352 1353 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1354 print_error(sc, rc); 1355 return (EIO); 1356 } 1357 1358 /* find the toc to copy*/ 1359 i = te->starting_track; 1360 if (i == SCD_LASTPLUS1) 1361 i = sc->data.last_track + 1; 1362 1363 /* verify starting track */ 1364 if (i < sc->data.first_track || i > sc->data.last_track+1) 1365 return (EINVAL); 1366 1367 /* valid length ? */ 1368 if (len < sizeof(struct cd_toc_entry) 1369 || (len % sizeof(struct cd_toc_entry)) != 0) 1370 return (EINVAL); 1371 1372 /* copy the toc data */ 1373 toc_entry.control = sc->data.toc[i].ctl; 1374 toc_entry.addr_type = te->address_format; 1375 toc_entry.track = i; 1376 if (te->address_format == CD_MSF_FORMAT) { 1377 toc_entry.addr.msf.unused = 0; 1378 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]); 1379 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); 1380 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); 1381 } 1382 1383 /* copy the data back */ 1384 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) 1385 return (EFAULT); 1386 1387 return (0); 1388 } 1389 1390 1391 static int 1392 scd_toc_entry (struct scd_softc *sc, struct ioc_read_toc_single_entry *te) 1393 { 1394 struct cd_toc_entry toc_entry; 1395 int rc, i; 1396 1397 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1398 print_error(sc, rc); 1399 return (EIO); 1400 } 1401 1402 /* find the toc to copy*/ 1403 i = te->track; 1404 if (i == SCD_LASTPLUS1) 1405 i = sc->data.last_track + 1; 1406 1407 /* verify starting track */ 1408 if (i < sc->data.first_track || i > sc->data.last_track+1) 1409 return (EINVAL); 1410 1411 /* copy the toc data */ 1412 toc_entry.control = sc->data.toc[i].ctl; 1413 toc_entry.addr_type = te->address_format; 1414 toc_entry.track = i; 1415 if (te->address_format == CD_MSF_FORMAT) { 1416 toc_entry.addr.msf.unused = 0; 1417 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]); 1418 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); 1419 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); 1420 } 1421 1422 /* copy the data back */ 1423 bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry)); 1424 1425 return (0); 1426 }
Cache object: 9d6ec9673c391b794a9ea58c6b533ef9
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