scd.c revision 274679
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: head/sys/dev/scd/scd.c 274679 2014-11-18 22:02:37Z jhb $"); 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 */ 110static void hsg2msf(int hsg, bcd_t *msf); 111static int msf2hsg(bcd_t *msf); 112 113static void process_attention(struct scd_softc *); 114static int waitfor_status_bits(struct scd_softc *, int bits_set, int bits_clear); 115static int send_cmd(struct scd_softc *, u_char cmd, u_int nargs, ...); 116static void init_drive(struct scd_softc *); 117static int spin_up(struct scd_softc *); 118static int read_toc(struct scd_softc *); 119static int get_result(struct scd_softc *, int result_len, u_char *result); 120static void print_error(struct scd_softc *, int errcode); 121 122static void scd_start(struct scd_softc *); 123static void scd_timeout(void *); 124static void scd_doread(struct scd_softc *, int state, struct scd_mbx *mbxin); 125 126static int scd_eject(struct scd_softc *); 127static int scd_stop(struct scd_softc *); 128static int scd_pause(struct scd_softc *); 129static int scd_resume(struct scd_softc *); 130static int scd_playtracks(struct scd_softc *, struct ioc_play_track *pt); 131static int scd_playmsf(struct scd_softc *, struct ioc_play_msf *msf); 132static int scd_play(struct scd_softc *, struct ioc_play_msf *msf); 133static int scd_subchan(struct scd_softc *, struct ioc_read_subchannel *sch, int nocopyout); 134static int read_subcode(struct scd_softc *, struct sony_subchannel_position_data *sch); 135 136/* for xcdplayer */ 137static int scd_toc_header(struct scd_softc *, struct ioc_toc_header *th); 138static int scd_toc_entrys(struct scd_softc *, struct ioc_read_toc_entry *te); 139static 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 142static d_open_t scdopen; 143static d_close_t scdclose; 144static d_ioctl_t scdioctl; 145static d_strategy_t scdstrategy; 146 147 148static 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, 157}; 158 159int 160scd_attach(struct scd_softc *sc) 161{ 162 int unit; 163 164 unit = device_get_unit(sc->dev); 165 166 SCD_LOCK(sc); 167 init_drive(sc); 168 169 sc->data.flags = SCDINIT; 170 sc->data.audio_status = CD_AS_AUDIO_INVALID; 171 bioq_init(&sc->data.head); 172 SCD_UNLOCK(sc); 173 174 sc->scd_dev_t = make_dev(&scd_cdevsw, 8 * unit, 175 UID_ROOT, GID_OPERATOR, 0640, "scd%d", unit); 176 sc->scd_dev_t->si_drv1 = (void *)sc; 177 178 return (0); 179} 180 181static int 182scdopen(struct cdev *dev, int flags, int fmt, struct thread *td) 183{ 184 struct scd_softc *sc; 185 int rc; 186 187 sc = (struct scd_softc *)dev->si_drv1; 188 189 /* mark all open part's invalid */ 190 SCD_LOCK(sc); 191 if (sc->data.openflag) { 192 SCD_UNLOCK(sc); 193 return (ENXIO); 194 } 195 196 XDEBUG(sc, 1, "DEBUG: status = 0x%x\n", SCD_READ(sc, IREG_STATUS)); 197 198 if ((rc = spin_up(sc)) != 0) { 199 print_error(sc, rc); 200 SCD_UNLOCK(sc); 201 return (EIO); 202 } 203 if (!(sc->data.flags & SCDTOC)) { 204 int loop_count = 3; 205 206 while (loop_count-- > 0 && (rc = read_toc(sc)) != 0) { 207 if (rc == ERR_NOT_SPINNING) { 208 rc = spin_up(sc); 209 if (rc) { 210 print_error(sc, rc); 211 SCD_UNLOCK(sc); 212 return (EIO); 213 } 214 continue; 215 } 216 device_printf(sc->dev, "TOC read error 0x%x\n", rc); 217 SCD_UNLOCK(sc); 218 return (EIO); 219 } 220 } 221 222 sc->data.openflag = 1; 223 sc->data.flags |= SCDVALID; 224 SCD_UNLOCK(sc); 225 226 return (0); 227} 228 229static int 230scdclose(struct cdev *dev, int flags, int fmt, struct thread *td) 231{ 232 struct scd_softc *sc; 233 234 sc = (struct scd_softc *)dev->si_drv1; 235 236 SCD_LOCK(sc); 237 KASSERT(sc->data.openflag, ("device not open")); 238 239 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) { 240 (void)send_cmd(sc, CMD_SPIN_DOWN, 0); 241 sc->data.flags &= ~SCDSPINNING; 242 } 243 244 /* close channel */ 245 sc->data.openflag = 0; 246 SCD_UNLOCK(sc); 247 248 return (0); 249} 250 251static void 252scdstrategy(struct bio *bp) 253{ 254 struct scd_softc *sc; 255 256 sc = (struct scd_softc *)bp->bio_dev->si_drv1; 257 258 /* if device invalidated (e.g. media change, door open), error */ 259 SCD_LOCK(sc); 260 if (!(sc->data.flags & SCDVALID)) { 261 device_printf(sc->dev, "media changed\n"); 262 bp->bio_error = EIO; 263 goto bad; 264 } 265 266 /* read only */ 267 if (!(bp->bio_cmd == BIO_READ)) { 268 bp->bio_error = EROFS; 269 goto bad; 270 } 271 272 /* no data to read */ 273 if (bp->bio_bcount == 0) 274 goto done; 275 276 if (!(sc->data.flags & SCDTOC)) { 277 bp->bio_error = EIO; 278 goto bad; 279 } 280 281 bp->bio_resid = 0; 282 283 /* queue it */ 284 bioq_disksort(&sc->data.head, bp); 285 286 /* now check whether we can perform processing */ 287 scd_start(sc); 288 SCD_UNLOCK(sc); 289 return; 290 291bad: 292 bp->bio_flags |= BIO_ERROR; 293done: 294 SCD_UNLOCK(sc); 295 bp->bio_resid = bp->bio_bcount; 296 biodone(bp); 297 return; 298} 299 300static void 301scd_start(struct scd_softc *sc) 302{ 303 struct bio *bp; 304 305 SCD_ASSERT_LOCKED(sc); 306 if (sc->data.flags & SCDMBXBSY) 307 return; 308 309 bp = bioq_takefirst(&sc->data.head); 310 if (bp != 0) { 311 /* block found to process, dequeue */ 312 sc->data.flags |= SCDMBXBSY; 313 } else { 314 /* nothing to do */ 315 return; 316 } 317 318 sc->data.mbx.retry = 3; 319 sc->data.mbx.bp = bp; 320 321 scd_doread(sc, SCD_S_BEGIN, &(sc->data.mbx)); 322 return; 323} 324 325static int 326scdioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td) 327{ 328 struct scd_softc *sc; 329 int error; 330 331 sc = (struct scd_softc *)dev->si_drv1; 332 333 XDEBUG(sc, 1, "ioctl: cmd=0x%lx\n", cmd); 334 335 SCD_LOCK(sc); 336 if (!(sc->data.flags & SCDVALID)) { 337 SCD_UNLOCK(sc); 338 return (EIO); 339 } 340 341 error = 0; 342 switch (cmd) { 343 case DIOCGMEDIASIZE: 344 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize; 345 break; 346 case DIOCGSECTORSIZE: 347 *(u_int *)addr = sc->data.blksize; 348 break; 349 case CDIOCPLAYTRACKS: 350 error = scd_playtracks(sc, (struct ioc_play_track *) addr); 351 break; 352 case CDIOCPLAYBLOCKS: 353 error = EINVAL; 354 break; 355 case CDIOCPLAYMSF: 356 error = scd_playmsf(sc, (struct ioc_play_msf *) addr); 357 break; 358 case CDIOCREADSUBCHANNEL_SYSSPACE: 359 return scd_subchan(sc, (struct ioc_read_subchannel *) addr, 1); 360 case CDIOCREADSUBCHANNEL: 361 return scd_subchan(sc, (struct ioc_read_subchannel *) addr, 0); 362 case CDIOREADTOCHEADER: 363 error = scd_toc_header (sc, (struct ioc_toc_header *) addr); 364 break; 365 case CDIOREADTOCENTRYS: 366 return scd_toc_entrys (sc, (struct ioc_read_toc_entry*) addr); 367 case CDIOREADTOCENTRY: 368 error = scd_toc_entry (sc, (struct ioc_read_toc_single_entry*) addr); 369 break; 370 case CDIOCSETPATCH: 371 case CDIOCGETVOL: 372 case CDIOCSETVOL: 373 case CDIOCSETMONO: 374 case CDIOCSETSTERIO: 375 case CDIOCSETMUTE: 376 case CDIOCSETLEFT: 377 case CDIOCSETRIGHT: 378 error = EINVAL; 379 break; 380 case CDIOCRESUME: 381 error = scd_resume(sc); 382 break; 383 case CDIOCPAUSE: 384 error = scd_pause(sc); 385 break; 386 case CDIOCSTART: 387 error = EINVAL; 388 break; 389 case CDIOCSTOP: 390 error = scd_stop(sc); 391 break; 392 case CDIOCEJECT: 393 error = scd_eject(sc); 394 break; 395 case CDIOCALLOW: 396 break; 397 case CDIOCSETDEBUG: 398#ifdef SCD_DEBUG 399 scd_debuglevel++; 400#endif 401 break; 402 case CDIOCCLRDEBUG: 403#ifdef SCD_DEBUG 404 scd_debuglevel = 0; 405 406#endif 407 break; 408 default: 409 device_printf(sc->dev, "unsupported ioctl (cmd=0x%lx)\n", cmd); 410 error = ENOTTY; 411 break; 412 } 413 SCD_UNLOCK(sc); 414 return (error); 415} 416 417/*************************************************************** 418 * lower level of driver starts here 419 **************************************************************/ 420 421static int 422scd_playtracks(struct scd_softc *sc, struct ioc_play_track *pt) 423{ 424 struct ioc_play_msf msf; 425 int a = pt->start_track; 426 int z = pt->end_track; 427 int rc; 428 429 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 430 if (rc == -ERR_NOT_SPINNING) { 431 if (spin_up(sc) != 0) 432 return (EIO); 433 rc = read_toc(sc); 434 } 435 if (rc != 0) { 436 print_error(sc, rc); 437 return (EIO); 438 } 439 } 440 441 XDEBUG(sc, 1, "playtracks from %d:%d to %d:%d\n", 442 a, pt->start_index, z, pt->end_index); 443 444 if ( a < sc->data.first_track 445 || a > sc->data.last_track 446 || a > z 447 || z > sc->data.last_track) 448 return (EINVAL); 449 450 bcopy(sc->data.toc[a].start_msf, &msf.start_m, 3); 451 hsg2msf(msf2hsg(sc->data.toc[z+1].start_msf)-1, &msf.end_m); 452 453 return scd_play(sc, &msf); 454} 455 456/* The start/end msf is expected to be in bin format */ 457static int 458scd_playmsf(struct scd_softc *sc, struct ioc_play_msf *msfin) 459{ 460 struct ioc_play_msf msf; 461 462 msf.start_m = bin2bcd(msfin->start_m); 463 msf.start_s = bin2bcd(msfin->start_s); 464 msf.start_f = bin2bcd(msfin->start_f); 465 msf.end_m = bin2bcd(msfin->end_m); 466 msf.end_s = bin2bcd(msfin->end_s); 467 msf.end_f = bin2bcd(msfin->end_f); 468 469 return scd_play(sc, &msf); 470} 471 472/* The start/end msf is expected to be in bcd format */ 473static int 474scd_play(struct scd_softc *sc, struct ioc_play_msf *msf) 475{ 476 int i, rc; 477 478 XDEBUG(sc, 1, "playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", 479 msf->start_m, msf->start_s, msf->start_f, 480 msf->end_m, msf->end_s, msf->end_f); 481 482 for (i = 0; i < 2; i++) { 483 rc = send_cmd(sc, CMD_PLAY_AUDIO, 7, 484 0x03, 485 msf->start_m, msf->start_s, msf->start_f, 486 msf->end_m, msf->end_s, msf->end_f); 487 if (rc == -ERR_NOT_SPINNING) { 488 sc->data.flags &= ~SCDSPINNING; 489 if (spin_up(sc) != 0) 490 return (EIO); 491 } else if (rc < 0) { 492 print_error(sc, rc); 493 return (EIO); 494 } else { 495 break; 496 } 497 } 498 sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS; 499 bcopy((char *)msf, (char *)&sc->data.last_play, sizeof(struct ioc_play_msf)); 500 return (0); 501} 502 503static int 504scd_stop(struct scd_softc *sc) 505{ 506 507 (void)send_cmd(sc, CMD_STOP_AUDIO, 0); 508 sc->data.audio_status = CD_AS_PLAY_COMPLETED; 509 return (0); 510} 511 512static int 513scd_pause(struct scd_softc *sc) 514{ 515 struct sony_subchannel_position_data subpos; 516 517 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) 518 return (EINVAL); 519 520 if (read_subcode(sc, &subpos) != 0) 521 return (EIO); 522 523 if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0) 524 return (EIO); 525 526 sc->data.last_play.start_m = subpos.abs_msf[0]; 527 sc->data.last_play.start_s = subpos.abs_msf[1]; 528 sc->data.last_play.start_f = subpos.abs_msf[2]; 529 sc->data.audio_status = CD_AS_PLAY_PAUSED; 530 531 XDEBUG(sc, 1, "pause @ %02x:%02x:%02x\n", 532 sc->data.last_play.start_m, 533 sc->data.last_play.start_s, 534 sc->data.last_play.start_f); 535 536 return (0); 537} 538 539static int 540scd_resume(struct scd_softc *sc) 541{ 542 543 if (sc->data.audio_status != CD_AS_PLAY_PAUSED) 544 return (EINVAL); 545 return scd_play(sc, &sc->data.last_play); 546} 547 548static int 549scd_eject(struct scd_softc *sc) 550{ 551 552 sc->data.audio_status = CD_AS_AUDIO_INVALID; 553 sc->data.flags &= ~(SCDSPINNING|SCDTOC); 554 555 if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0 || 556 send_cmd(sc, CMD_SPIN_DOWN, 0) != 0 || 557 send_cmd(sc, CMD_EJECT, 0) != 0) 558 { 559 return (EIO); 560 } 561 return (0); 562} 563 564static int 565scd_subchan(struct scd_softc *sc, struct ioc_read_subchannel *sch, int nocopyout) 566{ 567 struct sony_subchannel_position_data q; 568 struct cd_sub_channel_info data; 569 570 XDEBUG(sc, 1, "subchan af=%d, df=%d\n", 571 sch->address_format, sch->data_format); 572 573 if (sch->address_format != CD_MSF_FORMAT) 574 return (EINVAL); 575 576 if (sch->data_format != CD_CURRENT_POSITION) 577 return (EINVAL); 578 579 if (read_subcode(sc, &q) != 0) 580 return (EIO); 581 582 data.header.audio_status = sc->data.audio_status; 583 data.what.position.data_format = CD_MSF_FORMAT; 584 data.what.position.track_number = bcd2bin(q.track_number); 585 data.what.position.reladdr.msf.unused = 0; 586 data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]); 587 data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]); 588 data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]); 589 data.what.position.absaddr.msf.unused = 0; 590 data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]); 591 data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]); 592 data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]); 593 SCD_UNLOCK(sc); 594 595 if (nocopyout == 0) { 596 if (copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len))!=0) 597 return (EFAULT); 598 } else { 599 bcopy(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len)); 600 } 601 return (0); 602} 603 604int 605scd_probe(struct scd_softc *sc) 606{ 607 struct sony_drive_configuration drive_config; 608 int rc; 609 static char namebuf[8+16+8+3]; 610 char *s = namebuf; 611 int loop_count = 0; 612 613 sc->data.flags = SCDPROBING; 614 615 bzero(&drive_config, sizeof(drive_config)); 616 617again: 618 /* Reset drive */ 619 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESET_DRIVE); 620 621 /* Calm down */ 622 DELAY(300000); 623 624 /* Only the ATTENTION bit may be set */ 625 if ((SCD_READ(sc, IREG_STATUS) & ~1) != 0) { 626 XDEBUG(sc, 1, "too many bits set. probe failed.\n"); 627 return (ENXIO); 628 } 629 rc = send_cmd(sc, CMD_GET_DRIVE_CONFIG, 0); 630 if (rc != sizeof(drive_config)) { 631 /* Sometimes if the drive is playing audio I get */ 632 /* the bad result 82. Fix by repeating the reset */ 633 if (rc > 0 && loop_count++ == 0) 634 goto again; 635 return (ENXIO); 636 } 637 if (get_result(sc, rc, (u_char *)&drive_config) != 0) 638 return (ENXIO); 639 640 bcopy(drive_config.vendor, namebuf, 8); 641 s = namebuf+8; 642 while (*(s-1) == ' ') /* Strip trailing spaces */ 643 s--; 644 *s++ = ' '; 645 bcopy(drive_config.product, s, 16); 646 s += 16; 647 while (*(s-1) == ' ') 648 s--; 649 *s++ = ' '; 650 bcopy(drive_config.revision, s, 8); 651 s += 8; 652 while (*(s-1) == ' ') 653 s--; 654 *s = 0; 655 656 sc->data.name = namebuf; 657 658 if (drive_config.config & 0x10) 659 sc->data.double_speed = 1; 660 else 661 sc->data.double_speed = 0; 662 663 return (0); 664} 665 666static int 667read_subcode(struct scd_softc *sc, struct sony_subchannel_position_data *scp) 668{ 669 int rc; 670 671 rc = send_cmd(sc, CMD_GET_SUBCHANNEL_DATA, 0); 672 if (rc < 0 || rc < sizeof(*scp)) 673 return (EIO); 674 if (get_result(sc, rc, (u_char *)scp) != 0) 675 return (EIO); 676 return (0); 677} 678 679/* State machine copied from mcd.c */ 680 681/* This (and the code in mcd.c) will not work with more than one drive */ 682/* because there is only one sc->ch_mbxsave below. Should fix that some day. */ 683/* (sc->ch_mbxsave & state should probably be included in the scd_data struct and */ 684/* the unit number used as first argument to scd_doread().) /Micke */ 685 686/* state machine to process read requests 687 * initialize with SCD_S_BEGIN: reset state machine 688 * SCD_S_WAITSTAT: wait for ready (!busy) 689 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) 690 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. 691 * SCD_S_WAITREAD: wait for data ready, read data 692 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. 693 */ 694 695static void 696scd_timeout(void *arg) 697{ 698 struct scd_softc *sc; 699 sc = (struct scd_softc *)arg; 700 701 SCD_ASSERT_LOCKED(sc); 702 scd_doread(sc, sc->ch_state, sc->ch_mbxsave); 703} 704 705static void 706scd_doread(struct scd_softc *sc, int state, struct scd_mbx *mbxin) 707{ 708 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? sc->ch_mbxsave : mbxin; 709 struct bio *bp = mbx->bp; 710 int i; 711 int blknum; 712 caddr_t addr; 713 static char sdata[3]; /* Must be preserved between calls to this function */ 714 715 SCD_ASSERT_LOCKED(sc); 716loop: 717 switch (state) { 718 case SCD_S_BEGIN: 719 mbx = sc->ch_mbxsave = mbxin; 720 721 case SCD_S_BEGIN1: 722 /* get status */ 723 mbx->count = RDELAY_WAIT; 724 725 process_attention(sc); 726 goto trystat; 727 728 case SCD_S_WAITSTAT: 729 sc->ch_state = SCD_S_WAITSTAT; 730 callout_stop(&sc->timer); 731 if (mbx->count-- <= 0) { 732 device_printf(sc->dev, "timeout. drive busy.\n"); 733 goto harderr; 734 } 735 736trystat: 737 if (IS_BUSY(sc)) { 738 sc->ch_state = SCD_S_WAITSTAT; 739 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */ 740 return; 741 } 742 743 process_attention(sc); 744 745 /* reject, if audio active */ 746 if (sc->data.audio_status & CD_AS_PLAY_IN_PROGRESS) { 747 device_printf(sc->dev, "audio is active\n"); 748 goto harderr; 749 } 750 751 mbx->sz = sc->data.blksize; 752 753 /* for first block */ 754 mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz; 755 mbx->skip = 0; 756 757nextblock: 758 if (!(sc->data.flags & SCDVALID)) 759 goto changed; 760 761 blknum = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz; 762 763 XDEBUG(sc, 2, "scd_doread: read blknum=%d\n", blknum); 764 765 /* build parameter block */ 766 hsg2msf(blknum, sdata); 767 768 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 769 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); 770 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); 771 772 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) 773 goto writeparam; 774 775 mbx->count = 100; 776 sc->ch_state = SCD_S_WAITFIFO; 777 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */ 778 return; 779 780 case SCD_S_WAITSPIN: 781 sc->ch_state = SCD_S_WAITSPIN; 782 callout_stop(&sc->timer); 783 if (mbx->count-- <= 0) { 784 device_printf(sc->dev, "timeout waiting for drive to spin up.\n"); 785 goto harderr; 786 } 787 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { 788 sc->ch_state = SCD_S_WAITSPIN; 789 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */ 790 return; 791 } 792 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 793 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 794 case 0x20: 795 i = SCD_READ(sc, IREG_RESULT); 796 print_error(sc, i); 797 goto harderr; 798 case 0x00: 799 (void)SCD_READ(sc, IREG_RESULT); 800 sc->data.flags |= SCDSPINNING; 801 break; 802 } 803 XDEBUG(sc, 1, "DEBUG: spin up complete\n"); 804 805 state = SCD_S_BEGIN1; 806 goto loop; 807 808 case SCD_S_WAITFIFO: 809 sc->ch_state = SCD_S_WAITFIFO; 810 callout_stop(&sc->timer); 811 if (mbx->count-- <= 0) { 812 device_printf(sc->dev, "timeout. write param not ready.\n"); 813 goto harderr; 814 } 815 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { 816 sc->ch_state = SCD_S_WAITFIFO; 817 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */ 818 return; 819 } 820 XDEBUG(sc, 1, "mbx->count (writeparamwait) = %d(%d)\n", mbx->count, 100); 821 822writeparam: 823 /* The reason this test isn't done 'till now is to make sure */ 824 /* that it is ok to send the SPIN_UP cmd below. */ 825 if (!(sc->data.flags & SCDSPINNING)) { 826 XDEBUG(sc, 1, "spinning up drive ...\n"); 827 SCD_WRITE(sc, OREG_COMMAND, CMD_SPIN_UP); 828 mbx->count = 300; 829 sc->ch_state = SCD_S_WAITSPIN; 830 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */ 831 return; 832 } 833 834 /* send the read command */ 835 SCD_WRITE(sc, OREG_WPARAMS, sdata[0]); 836 SCD_WRITE(sc, OREG_WPARAMS, sdata[1]); 837 SCD_WRITE(sc, OREG_WPARAMS, sdata[2]); 838 SCD_WRITE(sc, OREG_WPARAMS, 0); 839 SCD_WRITE(sc, OREG_WPARAMS, 0); 840 SCD_WRITE(sc, OREG_WPARAMS, 1); 841 SCD_WRITE(sc, OREG_COMMAND, CMD_READ); 842 843 mbx->count = RDELAY_WAITREAD; 844 for (i = 0; i < 50; i++) { 845 if (STATUS_BIT(sc, SBIT_DATA_READY)) 846 goto got_data; 847 DELAY(100); 848 } 849 850 sc->ch_state = SCD_S_WAITREAD; 851 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */ 852 return; 853 854 case SCD_S_WAITREAD: 855 sc->ch_state = SCD_S_WAITREAD; 856 callout_stop(&sc->timer); 857 if (mbx->count-- <= 0) { 858 if (STATUS_BIT(sc, SBIT_RESULT_READY)) 859 goto got_param; 860 device_printf(sc->dev, "timeout while reading data\n"); 861 goto readerr; 862 } 863 if (!STATUS_BIT(sc, SBIT_DATA_READY)) { 864 process_attention(sc); 865 if (!(sc->data.flags & SCDVALID)) 866 goto changed; 867 sc->ch_state = SCD_S_WAITREAD; 868 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */ 869 return; 870 } 871 XDEBUG(sc, 2, "mbx->count (after RDY_BIT) = %d(%d)\n", mbx->count, RDELAY_WAITREAD); 872 873got_data: 874 /* data is ready */ 875 addr = bp->bio_data + mbx->skip; 876 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); 877 SCD_READ_MULTI(sc, IREG_DATA, addr, mbx->sz); 878 879 mbx->count = 100; 880 for (i = 0; i < 20; i++) { 881 if (STATUS_BIT(sc, SBIT_RESULT_READY)) 882 goto waitfor_param; 883 DELAY(100); 884 } 885 goto waitfor_param; 886 887 case SCD_S_WAITPARAM: 888 sc->ch_state = SCD_S_WAITPARAM; 889 callout_stop(&sc->timer); 890 if (mbx->count-- <= 0) { 891 device_printf(sc->dev, "timeout waiting for params\n"); 892 goto readerr; 893 } 894 895waitfor_param: 896 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { 897 sc->ch_state = SCD_S_WAITPARAM; 898 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */ 899 return; 900 } 901#ifdef SCD_DEBUG 902 if (mbx->count < 100 && scd_debuglevel > 0) 903 device_printf(sc->dev, "mbx->count (paramwait) = %d(%d)\n", mbx->count, 100); 904#endif 905 906got_param: 907 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 908 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 909 case 0x50: 910 switch (i) { 911 case ERR_FATAL_READ_ERROR1: 912 case ERR_FATAL_READ_ERROR2: 913 device_printf(sc->dev, "unrecoverable read error 0x%x\n", i); 914 goto harderr; 915 } 916 break; 917 case 0x20: 918 i = SCD_READ(sc, IREG_RESULT); 919 switch (i) { 920 case ERR_NOT_SPINNING: 921 XDEBUG(sc, 1, "read error: drive not spinning\n"); 922 if (mbx->retry-- > 0) { 923 state = SCD_S_BEGIN1; 924 sc->data.flags &= ~SCDSPINNING; 925 goto loop; 926 } 927 goto harderr; 928 default: 929 print_error(sc, i); 930 goto readerr; 931 } 932 case 0x00: 933 i = SCD_READ(sc, IREG_RESULT); 934 break; 935 } 936 937 if (--mbx->nblk > 0) { 938 mbx->skip += mbx->sz; 939 goto nextblock; 940 } 941 942 /* return buffer */ 943 bp->bio_resid = 0; 944 biodone(bp); 945 946 sc->data.flags &= ~SCDMBXBSY; 947 scd_start(sc); 948 return; 949 } 950 951readerr: 952 if (mbx->retry-- > 0) { 953 device_printf(sc->dev, "retrying ...\n"); 954 state = SCD_S_BEGIN1; 955 goto loop; 956 } 957harderr: 958 /* invalidate the buffer */ 959 bp->bio_error = EIO; 960 bp->bio_flags |= BIO_ERROR; 961 bp->bio_resid = bp->bio_bcount; 962 biodone(bp); 963 964 sc->data.flags &= ~SCDMBXBSY; 965 scd_start(sc); 966 return; 967 968changed: 969 device_printf(sc->dev, "media changed\n"); 970 goto harderr; 971} 972 973static void 974hsg2msf(int hsg, bcd_t *msf) 975{ 976 977 hsg += 150; 978 M_msf(msf) = bin2bcd(hsg / 4500); 979 hsg %= 4500; 980 S_msf(msf) = bin2bcd(hsg / 75); 981 F_msf(msf) = bin2bcd(hsg % 75); 982} 983 984static int 985msf2hsg(bcd_t *msf) 986{ 987 988 return (bcd2bin(M_msf(msf)) * 60 + 989 bcd2bin(S_msf(msf))) * 75 + 990 bcd2bin(F_msf(msf)) - 150; 991} 992 993static void 994process_attention(struct scd_softc *sc) 995{ 996 unsigned char code; 997 int count = 0; 998 999 while (IS_ATTENTION(sc) && count++ < 30) { 1000 SCD_WRITE(sc, OREG_CONTROL, CBIT_ATTENTION_CLEAR); 1001 code = SCD_READ(sc, IREG_RESULT); 1002 1003#ifdef SCD_DEBUG 1004 if (scd_debuglevel > 0) { 1005 if (count == 1) 1006 device_printf(sc->dev, "DEBUG: ATTENTIONS = 0x%x", code); 1007 else 1008 printf(",0x%x", code); 1009 } 1010#endif 1011 1012 switch (code) { 1013 case ATTEN_SPIN_DOWN: 1014 sc->data.flags &= ~SCDSPINNING; 1015 break; 1016 1017 case ATTEN_SPIN_UP_DONE: 1018 sc->data.flags |= SCDSPINNING; 1019 break; 1020 1021 case ATTEN_AUDIO_DONE: 1022 sc->data.audio_status = CD_AS_PLAY_COMPLETED; 1023 break; 1024 1025 case ATTEN_DRIVE_LOADED: 1026 sc->data.flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); 1027 sc->data.audio_status = CD_AS_AUDIO_INVALID; 1028 break; 1029 1030 case ATTEN_EJECT_PUSHED: 1031 sc->data.flags &= ~SCDVALID; 1032 break; 1033 } 1034 DELAY(100); 1035 } 1036#ifdef SCD_DEBUG 1037 if (scd_debuglevel > 0 && count > 0) 1038 printf("\n"); 1039#endif 1040} 1041 1042/* Returns 0 OR sony error code */ 1043static int 1044spin_up(struct scd_softc *sc) 1045{ 1046 unsigned char res_reg[12]; 1047 unsigned int res_size; 1048 int rc; 1049 int loop_count = 0; 1050 1051again: 1052 rc = send_cmd(sc, CMD_SPIN_UP, 0, 0, res_reg, &res_size); 1053 if (rc != 0) { 1054 XDEBUG(sc, 2, "CMD_SPIN_UP error 0x%x\n", rc); 1055 return (rc); 1056 } 1057 1058 if (!(sc->data.flags & SCDTOC)) { 1059 rc = send_cmd(sc, CMD_READ_TOC, 0); 1060 if (rc == ERR_NOT_SPINNING) { 1061 if (loop_count++ < 3) 1062 goto again; 1063 return (rc); 1064 } 1065 if (rc != 0) 1066 return (rc); 1067 } 1068 1069 sc->data.flags |= SCDSPINNING; 1070 1071 return (0); 1072} 1073 1074static struct sony_tracklist * 1075get_tl(struct sony_toc *toc, int size) 1076{ 1077 struct sony_tracklist *tl = &toc->tracks[0]; 1078 1079 if (tl->track != 0xb0) 1080 return (tl); 1081 if (tl->track != 0xb1) 1082 return (tl); 1083 tl = (struct sony_tracklist *)((char *)tl + 9); 1084 if (tl->track != 0xb2) 1085 return (tl); 1086 tl = (struct sony_tracklist *)((char *)tl + 9); 1087 if (tl->track != 0xb3) 1088 return (tl); 1089 tl = (struct sony_tracklist *)((char *)tl + 9); 1090 if (tl->track != 0xb4) 1091 return (tl); 1092 tl = (struct sony_tracklist *)((char *)tl + 9); 1093 if (tl->track != 0xc0) 1094 return (tl); 1095 tl = (struct sony_tracklist *)((char *)tl + 9); 1096 return (tl); 1097} 1098 1099static int 1100read_toc(struct scd_softc *sc) 1101{ 1102 struct sony_toc toc; 1103 struct sony_tracklist *tl; 1104 int rc, i, j; 1105 u_long first, last; 1106 1107 rc = send_cmd(sc, CMD_GET_TOC, 1, 1); 1108 if (rc < 0) 1109 return (rc); 1110 if (rc > sizeof(toc)) { 1111 device_printf(sc->dev, "program error: toc too large (%d)\n", rc); 1112 return (EIO); 1113 } 1114 if (get_result(sc, rc, (u_char *)&toc) != 0) 1115 return (EIO); 1116 1117 XDEBUG(sc, 1, "toc read. len = %d, sizeof(toc) = %d\n", rc, sizeof(toc)); 1118 1119 tl = get_tl(&toc, rc); 1120 first = msf2hsg(tl->start_msf); 1121 last = msf2hsg(toc.lead_out_start_msf); 1122 sc->data.blksize = SCDBLKSIZE; 1123 sc->data.disksize = last*sc->data.blksize/DEV_BSIZE; 1124 1125 XDEBUG(sc, 1, "firstsector = %ld, lastsector = %ld", first, last); 1126 1127 sc->data.first_track = bcd2bin(toc.first_track); 1128 sc->data.last_track = bcd2bin(toc.last_track); 1129 if (sc->data.last_track > (MAX_TRACKS-2)) 1130 sc->data.last_track = MAX_TRACKS-2; 1131 for (j = 0, i = sc->data.first_track; i <= sc->data.last_track; i++, j++) { 1132 sc->data.toc[i].adr = tl[j].adr; 1133 sc->data.toc[i].ctl = tl[j].ctl; /* for xcdplayer */ 1134 bcopy(tl[j].start_msf, sc->data.toc[i].start_msf, 3); 1135#ifdef SCD_DEBUG 1136 if (scd_debuglevel > 0) { 1137 if ((j % 3) == 0) { 1138 printf("\n"); 1139 device_printf(sc->dev, "tracks "); 1140 } 1141 printf("[%03d: %2d %2d %2d] ", i, 1142 bcd2bin(sc->data.toc[i].start_msf[0]), 1143 bcd2bin(sc->data.toc[i].start_msf[1]), 1144 bcd2bin(sc->data.toc[i].start_msf[2])); 1145 } 1146#endif 1147 } 1148 bcopy(toc.lead_out_start_msf, sc->data.toc[sc->data.last_track+1].start_msf, 3); 1149#ifdef SCD_DEBUG 1150 if (scd_debuglevel > 0) { 1151 i = sc->data.last_track+1; 1152 printf("[END: %2d %2d %2d]\n", 1153 bcd2bin(sc->data.toc[i].start_msf[0]), 1154 bcd2bin(sc->data.toc[i].start_msf[1]), 1155 bcd2bin(sc->data.toc[i].start_msf[2])); 1156 } 1157#endif 1158 1159 sc->data.flags |= SCDTOC; 1160 1161 return (0); 1162} 1163 1164static void 1165init_drive(struct scd_softc *sc) 1166{ 1167 int rc; 1168 1169 rc = send_cmd(sc, CMD_SET_DRIVE_PARAM, 2, 1170 0x05, 0x03 | ((sc->data.double_speed) ? 0x04: 0)); 1171 if (rc != 0) 1172 device_printf(sc->dev, "Unable to set parameters. Errcode = 0x%x\n", rc); 1173} 1174 1175/* Returns 0 or errno */ 1176static int 1177get_result(struct scd_softc *sc, int result_len, u_char *result) 1178{ 1179 int loop_index = 2; /* send_cmd() reads two bytes ... */ 1180 1181 XDEBUG(sc, 1, "DEBUG: get_result: bytes=%d\n", result_len); 1182 1183 while (result_len-- > 0) { 1184 if (loop_index++ >= 10) { 1185 loop_index = 1; 1186 if (waitfor_status_bits(sc, SBIT_RESULT_READY, 0)) 1187 return (EIO); 1188 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1189 } 1190 if (result) 1191 *result++ = SCD_READ(sc, IREG_RESULT); 1192 else 1193 (void)SCD_READ(sc, IREG_RESULT); 1194 } 1195 return (0); 1196} 1197 1198/* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ 1199static int 1200send_cmd(struct scd_softc *sc, u_char cmd, u_int nargs, ...) 1201{ 1202 va_list ap; 1203 u_char c; 1204 int rc; 1205 int i; 1206 1207 if (waitfor_status_bits(sc, 0, SBIT_BUSY)) { 1208 device_printf(sc->dev, "drive busy\n"); 1209 return (-0x100); 1210 } 1211 1212 XDEBUG(sc, 1, "DEBUG: send_cmd: cmd=0x%x nargs=%d", cmd, nargs); 1213 1214 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1215 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); 1216 1217 for (i = 0; i < 100; i++) 1218 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) 1219 break; 1220 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { 1221 XDEBUG(sc, 1, "\nwparam timeout\n"); 1222 return (-EIO); 1223 } 1224 1225 va_start(ap, nargs); 1226 for (i = 0; i < nargs; i++) { 1227 c = (u_char)va_arg(ap, int); 1228 SCD_WRITE(sc, OREG_WPARAMS, c); 1229 XDEBUG(sc, 1, ",{0x%x}", c); 1230 } 1231 va_end(ap); 1232 XDEBUG(sc, 1, "\n"); 1233 1234 SCD_WRITE(sc, OREG_COMMAND, cmd); 1235 1236 rc = waitfor_status_bits(sc, SBIT_RESULT_READY, SBIT_BUSY); 1237 if (rc) 1238 return (-0x100); 1239 1240 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1241 switch ((rc = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 1242 case 0x20: 1243 rc = SCD_READ(sc, IREG_RESULT); 1244 /* FALLTHROUGH */ 1245 case 0x50: 1246 XDEBUG(sc, 1, "DEBUG: send_cmd: drive_error=0x%x\n", rc); 1247 return (-rc); 1248 case 0x00: 1249 default: 1250 rc = SCD_READ(sc, IREG_RESULT); 1251 XDEBUG(sc, 1, "DEBUG: send_cmd: result_len=%d\n", rc); 1252 return (rc); 1253 } 1254} 1255 1256static void 1257print_error(struct scd_softc *sc, int errcode) 1258{ 1259 1260 switch (errcode) { 1261 case -ERR_CD_NOT_LOADED: 1262 device_printf(sc->dev, "door is open\n"); 1263 break; 1264 case -ERR_NO_CD_INSIDE: 1265 device_printf(sc->dev, "no cd inside\n"); 1266 break; 1267 default: 1268 if (errcode == -0x100 || errcode > 0) 1269 device_printf(sc->dev, "device timeout\n"); 1270 else 1271 device_printf(sc->dev, "unexpected error 0x%x\n", -errcode); 1272 break; 1273 } 1274} 1275 1276/* Returns 0 or errno value */ 1277static int 1278waitfor_status_bits(struct scd_softc *sc, int bits_set, int bits_clear) 1279{ 1280 u_int flags = sc->data.flags; 1281 u_int max_loop; 1282 u_char c = 0; 1283 1284 if (flags & SCDPROBING) { 1285 max_loop = 0; 1286 while (max_loop++ < 1000) { 1287 c = SCD_READ(sc, IREG_STATUS); 1288 if (c == 0xff) 1289 return (EIO); 1290 if (c & SBIT_ATTENTION) { 1291 process_attention(sc); 1292 continue; 1293 } 1294 if ((c & bits_set) == bits_set && 1295 (c & bits_clear) == 0) 1296 { 1297 break; 1298 } 1299 DELAY(10000); 1300 } 1301 } else { 1302 max_loop = 100; 1303 while (max_loop-- > 0) { 1304 c = SCD_READ(sc, IREG_STATUS); 1305 if (c & SBIT_ATTENTION) { 1306 process_attention(sc); 1307 continue; 1308 } 1309 if ((c & bits_set) == bits_set && 1310 (c & bits_clear) == 0) 1311 { 1312 break; 1313 } 1314 SCD_UNLOCK(sc); 1315 pause("waitfor", hz/10); 1316 SCD_LOCK(sc); 1317 } 1318 } 1319 if ((c & bits_set) == bits_set && 1320 (c & bits_clear) == 0) 1321 { 1322 return (0); 1323 } 1324#ifdef SCD_DEBUG 1325 if (scd_debuglevel > 0) 1326 device_printf(sc->dev, "DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", c, bits_set, bits_clear); 1327 else 1328#endif 1329 device_printf(sc->dev, "timeout.\n"); 1330 return (EIO); 1331} 1332 1333/* these two routines for xcdplayer - "borrowed" from mcd.c */ 1334static int 1335scd_toc_header (struct scd_softc *sc, struct ioc_toc_header* th) 1336{ 1337 int rc; 1338 1339 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1340 print_error(sc, rc); 1341 return (EIO); 1342 } 1343 1344 th->starting_track = sc->data.first_track; 1345 th->ending_track = sc->data.last_track; 1346 th->len = 0; /* not used */ 1347 1348 return (0); 1349} 1350 1351static int 1352scd_toc_entrys (struct scd_softc *sc, struct ioc_read_toc_entry *te) 1353{ 1354 struct cd_toc_entry toc_entry; 1355 int rc, i, len = te->data_len; 1356 1357 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1358 print_error(sc, rc); 1359 return (EIO); 1360 } 1361 1362 /* find the toc to copy*/ 1363 i = te->starting_track; 1364 if (i == SCD_LASTPLUS1) 1365 i = sc->data.last_track + 1; 1366 1367 /* verify starting track */ 1368 if (i < sc->data.first_track || i > sc->data.last_track+1) 1369 return (EINVAL); 1370 1371 /* valid length ? */ 1372 if (len < sizeof(struct cd_toc_entry) 1373 || (len % sizeof(struct cd_toc_entry)) != 0) 1374 return (EINVAL); 1375 1376 /* copy the toc data */ 1377 toc_entry.control = sc->data.toc[i].ctl; 1378 toc_entry.addr_type = te->address_format; 1379 toc_entry.track = i; 1380 if (te->address_format == CD_MSF_FORMAT) { 1381 toc_entry.addr.msf.unused = 0; 1382 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]); 1383 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); 1384 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); 1385 } 1386 SCD_UNLOCK(sc); 1387 1388 /* copy the data back */ 1389 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) 1390 return (EFAULT); 1391 1392 return (0); 1393} 1394 1395 1396static int 1397scd_toc_entry (struct scd_softc *sc, struct ioc_read_toc_single_entry *te) 1398{ 1399 struct cd_toc_entry toc_entry; 1400 int rc, i; 1401 1402 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1403 print_error(sc, rc); 1404 return (EIO); 1405 } 1406 1407 /* find the toc to copy*/ 1408 i = te->track; 1409 if (i == SCD_LASTPLUS1) 1410 i = sc->data.last_track + 1; 1411 1412 /* verify starting track */ 1413 if (i < sc->data.first_track || i > sc->data.last_track+1) 1414 return (EINVAL); 1415 1416 /* copy the toc data */ 1417 toc_entry.control = sc->data.toc[i].ctl; 1418 toc_entry.addr_type = te->address_format; 1419 toc_entry.track = i; 1420 if (te->address_format == CD_MSF_FORMAT) { 1421 toc_entry.addr.msf.unused = 0; 1422 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]); 1423 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); 1424 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); 1425 } 1426 1427 /* copy the data back */ 1428 bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry)); 1429 1430 return (0); 1431} 1432