scd.c revision 111815
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: head/sys/dev/scd/scd.c 111815 2003-03-03 12:15:54Z phk $ */ 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 */ 109static void hsg2msf(int hsg, bcd_t *msf); 110static int msf2hsg(bcd_t *msf); 111 112static void process_attention(struct scd_softc *); 113static int waitfor_status_bits(struct scd_softc *, int bits_set, int bits_clear); 114static int send_cmd(struct scd_softc *, u_char cmd, u_int nargs, ...); 115static void init_drive(struct scd_softc *); 116static int spin_up(struct scd_softc *); 117static int read_toc(struct scd_softc *); 118static int get_result(struct scd_softc *, int result_len, u_char *result); 119static void print_error(struct scd_softc *, int errcode); 120 121static void scd_start(struct scd_softc *); 122static timeout_t scd_timeout; 123static void scd_doread(struct scd_softc *, int state, struct scd_mbx *mbxin); 124 125static int scd_eject(struct scd_softc *); 126static int scd_stop(struct scd_softc *); 127static int scd_pause(struct scd_softc *); 128static int scd_resume(struct scd_softc *); 129static int scd_playtracks(struct scd_softc *, struct ioc_play_track *pt); 130static int scd_playmsf(struct scd_softc *, struct ioc_play_msf *msf); 131static int scd_play(struct scd_softc *, struct ioc_play_msf *msf); 132static int scd_subchan(struct scd_softc *, struct ioc_read_subchannel *sch); 133static int read_subcode(struct scd_softc *, struct sony_subchannel_position_data *sch); 134 135/* for xcdplayer */ 136static int scd_toc_header(struct scd_softc *, struct ioc_toc_header *th); 137static int scd_toc_entrys(struct scd_softc *, struct ioc_read_toc_entry *te); 138static 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 141static d_open_t scdopen; 142static d_close_t scdclose; 143static d_ioctl_t scdioctl; 144static d_strategy_t scdstrategy; 145 146#define CDEV_MAJOR 45 147 148static struct cdevsw scd_cdevsw = { 149 .d_open = scdopen, 150 .d_close = scdclose, 151 .d_read = physread, 152 .d_ioctl = scdioctl, 153 .d_strategy = scdstrategy, 154 .d_name = "scd", 155 .d_maj = CDEV_MAJOR, 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 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 179static int 180scdopen(dev_t 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 dev->si_bsize_phys = sc->data.blksize; 219 220 sc->data.openflag = 1; 221 sc->data.flags |= SCDVALID; 222 223 return (0); 224} 225 226static int 227scdclose(dev_t dev, int flags, int fmt, struct thread *td) 228{ 229 struct scd_softc *sc; 230 231 sc = (struct scd_softc *)dev->si_drv1; 232 233 if (!(sc->data.flags & SCDINIT) || !sc->data.openflag) 234 return (ENXIO); 235 236 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) { 237 (void)send_cmd(sc, CMD_SPIN_DOWN, 0); 238 sc->data.flags &= ~SCDSPINNING; 239 } 240 241 242 /* close channel */ 243 sc->data.openflag = 0; 244 245 return (0); 246} 247 248static void 249scdstrategy(struct bio *bp) 250{ 251 int s; 252 struct scd_softc *sc; 253 254 sc = (struct scd_softc *)bp->bio_dev->si_drv1; 255 256 XDEBUG(sc, 2, "DEBUG: strategy: block=%ld, bcount=%ld\n", 257 (long)bp->bio_blkno, bp->bio_bcount); 258 259 if (bp->bio_blkno < 0 || (bp->bio_bcount % SCDBLKSIZE)) { 260 device_printf(sc->dev, "strategy failure: blkno = %ld, bcount = %ld\n", 261 (long)bp->bio_blkno, bp->bio_bcount); 262 bp->bio_error = EINVAL; 263 bp->bio_flags |= BIO_ERROR; 264 goto bad; 265 } 266 267 /* if device invalidated (e.g. media change, door open), error */ 268 if (!(sc->data.flags & SCDVALID)) { 269 device_printf(sc->dev, "media changed\n"); 270 bp->bio_error = EIO; 271 goto bad; 272 } 273 274 /* read only */ 275 if (!(bp->bio_cmd == BIO_READ)) { 276 bp->bio_error = EROFS; 277 goto bad; 278 } 279 280 /* no data to read */ 281 if (bp->bio_bcount == 0) 282 goto done; 283 284 if (!(sc->data.flags & SCDTOC)) { 285 bp->bio_error = EIO; 286 goto bad; 287 } 288 289 bp->bio_pblkno = bp->bio_blkno; 290 bp->bio_resid = 0; 291 292 /* queue it */ 293 s = splbio(); 294 bioqdisksort(&sc->data.head, bp); 295 splx(s); 296 297 /* now check whether we can perform processing */ 298 scd_start(sc); 299 return; 300 301bad: 302 bp->bio_flags |= BIO_ERROR; 303done: 304 bp->bio_resid = bp->bio_bcount; 305 biodone(bp); 306 return; 307} 308 309static void 310scd_start(struct scd_softc *sc) 311{ 312 struct bio *bp; 313 int s = splbio(); 314 315 if (sc->data.flags & SCDMBXBSY) { 316 splx(s); 317 return; 318 } 319 320 bp = bioq_first(&sc->data.head); 321 if (bp != 0) { 322 /* block found to process, dequeue */ 323 bioq_remove(&sc->data.head, bp); 324 sc->data.flags |= SCDMBXBSY; 325 splx(s); 326 } else { 327 /* nothing to do */ 328 splx(s); 329 return; 330 } 331 332 sc->data.mbx.retry = 3; 333 sc->data.mbx.bp = bp; 334 splx(s); 335 336 scd_doread(sc, SCD_S_BEGIN, &(sc->data.mbx)); 337 return; 338} 339 340static int 341scdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct thread *td) 342{ 343 struct scd_softc *sc; 344 345 sc = (struct scd_softc *)dev->si_drv1; 346 347 XDEBUG(sc, 1, "ioctl: cmd=0x%lx\n", cmd); 348 349 if (!(sc->data.flags & SCDVALID)) 350 return (EIO); 351 352 switch (cmd) { 353 case DIOCGMEDIASIZE: 354 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize; 355 return (0); 356 break; 357 case DIOCGSECTORSIZE: 358 *(u_int *)addr = sc->data.blksize; 359 return (0); 360 break; 361 case CDIOCPLAYTRACKS: 362 return scd_playtracks(sc, (struct ioc_play_track *) addr); 363 case CDIOCPLAYBLOCKS: 364 return (EINVAL); 365 case CDIOCPLAYMSF: 366 return scd_playmsf(sc, (struct ioc_play_msf *) addr); 367 case CDIOCREADSUBCHANNEL: 368 return scd_subchan(sc, (struct ioc_read_subchannel *) addr); 369 case CDIOREADTOCHEADER: 370 return scd_toc_header (sc, (struct ioc_toc_header *) addr); 371 case CDIOREADTOCENTRYS: 372 return scd_toc_entrys (sc, (struct ioc_read_toc_entry*) addr); 373 case CDIOREADTOCENTRY: 374 return scd_toc_entry (sc, (struct ioc_read_toc_single_entry*) addr); 375 case CDIOCSETPATCH: 376 case CDIOCGETVOL: 377 case CDIOCSETVOL: 378 case CDIOCSETMONO: 379 case CDIOCSETSTERIO: 380 case CDIOCSETMUTE: 381 case CDIOCSETLEFT: 382 case CDIOCSETRIGHT: 383 return (EINVAL); 384 case CDIOCRESUME: 385 return scd_resume(sc); 386 case CDIOCPAUSE: 387 return scd_pause(sc); 388 case CDIOCSTART: 389 return (EINVAL); 390 case CDIOCSTOP: 391 return scd_stop(sc); 392 case CDIOCEJECT: 393 return scd_eject(sc); 394 case CDIOCALLOW: 395 return (0); 396 case CDIOCSETDEBUG: 397#ifdef SCD_DEBUG 398 scd_debuglevel++; 399#endif 400 return (0); 401 case CDIOCCLRDEBUG: 402#ifdef SCD_DEBUG 403 scd_debuglevel = 0; 404 405#endif 406 return (0); 407 default: 408 device_printf(sc->dev, "unsupported ioctl (cmd=0x%lx)\n", cmd); 409 return (ENOTTY); 410 } 411} 412 413/*************************************************************** 414 * lower level of driver starts here 415 **************************************************************/ 416 417static int 418scd_playtracks(struct scd_softc *sc, struct ioc_play_track *pt) 419{ 420 struct ioc_play_msf msf; 421 int a = pt->start_track; 422 int z = pt->end_track; 423 int rc; 424 425 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 426 if (rc == -ERR_NOT_SPINNING) { 427 if (spin_up(sc) != 0) 428 return (EIO); 429 rc = read_toc(sc); 430 } 431 if (rc != 0) { 432 print_error(sc, rc); 433 return (EIO); 434 } 435 } 436 437 XDEBUG(sc, 1, "playtracks from %d:%d to %d:%d\n", 438 a, pt->start_index, z, pt->end_index); 439 440 if ( a < sc->data.first_track 441 || a > sc->data.last_track 442 || a > z 443 || z > sc->data.last_track) 444 return (EINVAL); 445 446 bcopy(sc->data.toc[a].start_msf, &msf.start_m, 3); 447 hsg2msf(msf2hsg(sc->data.toc[z+1].start_msf)-1, &msf.end_m); 448 449 return scd_play(sc, &msf); 450} 451 452/* The start/end msf is expected to be in bin format */ 453static int 454scd_playmsf(struct scd_softc *sc, struct ioc_play_msf *msfin) 455{ 456 struct ioc_play_msf msf; 457 458 msf.start_m = bin2bcd(msfin->start_m); 459 msf.start_s = bin2bcd(msfin->start_s); 460 msf.start_f = bin2bcd(msfin->start_f); 461 msf.end_m = bin2bcd(msfin->end_m); 462 msf.end_s = bin2bcd(msfin->end_s); 463 msf.end_f = bin2bcd(msfin->end_f); 464 465 return scd_play(sc, &msf); 466} 467 468/* The start/end msf is expected to be in bcd format */ 469static int 470scd_play(struct scd_softc *sc, struct ioc_play_msf *msf) 471{ 472 int i, rc; 473 474 XDEBUG(sc, 1, "playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", 475 msf->start_m, msf->start_s, msf->start_f, 476 msf->end_m, msf->end_s, msf->end_f); 477 478 for (i = 0; i < 2; i++) { 479 rc = send_cmd(sc, CMD_PLAY_AUDIO, 7, 480 0x03, 481 msf->start_m, msf->start_s, msf->start_f, 482 msf->end_m, msf->end_s, msf->end_f); 483 if (rc == -ERR_NOT_SPINNING) { 484 sc->data.flags &= ~SCDSPINNING; 485 if (spin_up(sc) != 0) 486 return (EIO); 487 } else if (rc < 0) { 488 print_error(sc, rc); 489 return (EIO); 490 } else { 491 break; 492 } 493 } 494 sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS; 495 bcopy((char *)msf, (char *)&sc->data.last_play, sizeof(struct ioc_play_msf)); 496 return (0); 497} 498 499static int 500scd_stop(struct scd_softc *sc) 501{ 502 503 (void)send_cmd(sc, CMD_STOP_AUDIO, 0); 504 sc->data.audio_status = CD_AS_PLAY_COMPLETED; 505 return (0); 506} 507 508static int 509scd_pause(struct scd_softc *sc) 510{ 511 struct sony_subchannel_position_data subpos; 512 513 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) 514 return (EINVAL); 515 516 if (read_subcode(sc, &subpos) != 0) 517 return (EIO); 518 519 if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0) 520 return (EIO); 521 522 sc->data.last_play.start_m = subpos.abs_msf[0]; 523 sc->data.last_play.start_s = subpos.abs_msf[1]; 524 sc->data.last_play.start_f = subpos.abs_msf[2]; 525 sc->data.audio_status = CD_AS_PLAY_PAUSED; 526 527 XDEBUG(sc, 1, "pause @ %02x:%02x:%02x\n", 528 sc->data.last_play.start_m, 529 sc->data.last_play.start_s, 530 sc->data.last_play.start_f); 531 532 return (0); 533} 534 535static int 536scd_resume(struct scd_softc *sc) 537{ 538 539 if (sc->data.audio_status != CD_AS_PLAY_PAUSED) 540 return (EINVAL); 541 return scd_play(sc, &sc->data.last_play); 542} 543 544static int 545scd_eject(struct scd_softc *sc) 546{ 547 548 sc->data.audio_status = CD_AS_AUDIO_INVALID; 549 sc->data.flags &= ~(SCDSPINNING|SCDTOC); 550 551 if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0 || 552 send_cmd(sc, CMD_SPIN_DOWN, 0) != 0 || 553 send_cmd(sc, CMD_EJECT, 0) != 0) 554 { 555 return (EIO); 556 } 557 return (0); 558} 559 560static int 561scd_subchan(struct scd_softc *sc, struct ioc_read_subchannel *sch) 562{ 563 struct sony_subchannel_position_data q; 564 struct cd_sub_channel_info data; 565 566 XDEBUG(sc, 1, "subchan af=%d, df=%d\n", 567 sch->address_format, sch->data_format); 568 569 if (sch->address_format != CD_MSF_FORMAT) 570 return (EINVAL); 571 572 if (sch->data_format != CD_CURRENT_POSITION) 573 return (EINVAL); 574 575 if (read_subcode(sc, &q) != 0) 576 return (EIO); 577 578 data.header.audio_status = sc->data.audio_status; 579 data.what.position.data_format = CD_MSF_FORMAT; 580 data.what.position.track_number = bcd2bin(q.track_number); 581 data.what.position.reladdr.msf.unused = 0; 582 data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]); 583 data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]); 584 data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]); 585 data.what.position.absaddr.msf.unused = 0; 586 data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]); 587 data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]); 588 data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]); 589 590 if (copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len))!=0) 591 return (EFAULT); 592 return (0); 593} 594 595int 596scd_probe(struct scd_softc *sc) 597{ 598 struct sony_drive_configuration drive_config; 599 int rc; 600 static char namebuf[8+16+8+3]; 601 char *s = namebuf; 602 int loop_count = 0; 603 604 sc->data.flags = SCDPROBING; 605 606 bzero(&drive_config, sizeof(drive_config)); 607 608again: 609 /* Reset drive */ 610 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESET_DRIVE); 611 612 /* Calm down */ 613 DELAY(300000); 614 615 /* Only the ATTENTION bit may be set */ 616 if ((SCD_READ(sc, IREG_STATUS) & ~1) != 0) { 617 XDEBUG(sc, 1, "too many bits set. probe failed.\n"); 618 return (ENXIO); 619 } 620 rc = send_cmd(sc, CMD_GET_DRIVE_CONFIG, 0); 621 if (rc != sizeof(drive_config)) { 622 /* Sometimes if the drive is playing audio I get */ 623 /* the bad result 82. Fix by repeating the reset */ 624 if (rc > 0 && loop_count++ == 0) 625 goto again; 626 return (ENXIO); 627 } 628 if (get_result(sc, rc, (u_char *)&drive_config) != 0) 629 return (ENXIO); 630 631 bcopy(drive_config.vendor, namebuf, 8); 632 s = namebuf+8; 633 while (*(s-1) == ' ') /* Strip trailing spaces */ 634 s--; 635 *s++ = ' '; 636 bcopy(drive_config.product, s, 16); 637 s += 16; 638 while (*(s-1) == ' ') 639 s--; 640 *s++ = ' '; 641 bcopy(drive_config.revision, s, 8); 642 s += 8; 643 while (*(s-1) == ' ') 644 s--; 645 *s = 0; 646 647 sc->data.name = namebuf; 648 649 if (drive_config.config & 0x10) 650 sc->data.double_speed = 1; 651 else 652 sc->data.double_speed = 0; 653 654 return (0); 655} 656 657static int 658read_subcode(struct scd_softc *sc, struct sony_subchannel_position_data *scp) 659{ 660 int rc; 661 662 rc = send_cmd(sc, CMD_GET_SUBCHANNEL_DATA, 0); 663 if (rc < 0 || rc < sizeof(*scp)) 664 return (EIO); 665 if (get_result(sc, rc, (u_char *)scp) != 0) 666 return (EIO); 667 return (0); 668} 669 670/* State machine copied from mcd.c */ 671 672/* This (and the code in mcd.c) will not work with more than one drive */ 673/* because there is only one sc->ch_mbxsave below. Should fix that some day. */ 674/* (sc->ch_mbxsave & state should probably be included in the scd_data struct and */ 675/* the unit number used as first argument to scd_doread().) /Micke */ 676 677/* state machine to process read requests 678 * initialize with SCD_S_BEGIN: reset state machine 679 * SCD_S_WAITSTAT: wait for ready (!busy) 680 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) 681 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. 682 * SCD_S_WAITREAD: wait for data ready, read data 683 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. 684 */ 685 686static void 687scd_timeout(void *arg) 688{ 689 struct scd_softc *sc; 690 sc = (struct scd_softc *)arg; 691 692 scd_doread(sc, sc->ch_state, sc->ch_mbxsave); 693} 694 695static void 696scd_doread(struct scd_softc *sc, int state, struct scd_mbx *mbxin) 697{ 698 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? sc->ch_mbxsave : mbxin; 699 struct bio *bp = mbx->bp; 700 int i; 701 int blknum; 702 caddr_t addr; 703 static char sdata[3]; /* Must be preserved between calls to this function */ 704 705loop: 706 switch (state) { 707 case SCD_S_BEGIN: 708 mbx = sc->ch_mbxsave = mbxin; 709 710 case SCD_S_BEGIN1: 711 /* get status */ 712 mbx->count = RDELAY_WAIT; 713 714 process_attention(sc); 715 goto trystat; 716 717 case SCD_S_WAITSTAT: 718 sc->ch_state = SCD_S_WAITSTAT; 719 untimeout(scd_timeout, (caddr_t)sc, sc->ch); 720 if (mbx->count-- <= 0) { 721 device_printf(sc->dev, "timeout. drive busy.\n"); 722 goto harderr; 723 } 724 725trystat: 726 if (IS_BUSY(sc)) { 727 sc->ch_state = SCD_S_WAITSTAT; 728 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 729 return; 730 } 731 732 process_attention(sc); 733 734 /* reject, if audio active */ 735 if (sc->data.audio_status & CD_AS_PLAY_IN_PROGRESS) { 736 device_printf(sc->dev, "audio is active\n"); 737 goto harderr; 738 } 739 740 mbx->sz = sc->data.blksize; 741 742 /* for first block */ 743 mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz; 744 mbx->skip = 0; 745 746nextblock: 747 if (!(sc->data.flags & SCDVALID)) 748 goto changed; 749 750 blknum = (bp->bio_blkno / (mbx->sz/DEV_BSIZE)) 751 + mbx->skip/mbx->sz; 752 753 XDEBUG(sc, 2, "scd_doread: read blknum=%d\n", blknum); 754 755 /* build parameter block */ 756 hsg2msf(blknum, sdata); 757 758 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 759 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); 760 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); 761 762 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) 763 goto writeparam; 764 765 mbx->count = 100; 766 sc->ch_state = SCD_S_WAITFIFO; 767 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 768 return; 769 770 case SCD_S_WAITSPIN: 771 sc->ch_state = SCD_S_WAITSPIN; 772 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 773 if (mbx->count-- <= 0) { 774 device_printf(sc->dev, "timeout waiting for drive to spin up.\n"); 775 goto harderr; 776 } 777 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { 778 sc->ch_state = SCD_S_WAITSPIN; 779 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 780 return; 781 } 782 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 783 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 784 case 0x20: 785 i = SCD_READ(sc, IREG_RESULT); 786 print_error(sc, i); 787 goto harderr; 788 case 0x00: 789 (void)SCD_READ(sc, IREG_RESULT); 790 sc->data.flags |= SCDSPINNING; 791 break; 792 } 793 XDEBUG(sc, 1, "DEBUG: spin up complete\n"); 794 795 state = SCD_S_BEGIN1; 796 goto loop; 797 798 case SCD_S_WAITFIFO: 799 sc->ch_state = SCD_S_WAITFIFO; 800 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 801 if (mbx->count-- <= 0) { 802 device_printf(sc->dev, "timeout. write param not ready.\n"); 803 goto harderr; 804 } 805 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { 806 sc->ch_state = SCD_S_WAITFIFO; 807 sc->ch = timeout(scd_timeout, (caddr_t)sc,hz/100); /* XXX */ 808 return; 809 } 810 XDEBUG(sc, 1, "mbx->count (writeparamwait) = %d(%d)\n", mbx->count, 100); 811 812writeparam: 813 /* The reason this test isn't done 'till now is to make sure */ 814 /* that it is ok to send the SPIN_UP cmd below. */ 815 if (!(sc->data.flags & SCDSPINNING)) { 816 XDEBUG(sc, 1, "spinning up drive ...\n"); 817 SCD_WRITE(sc, OREG_COMMAND, CMD_SPIN_UP); 818 mbx->count = 300; 819 sc->ch_state = SCD_S_WAITSPIN; 820 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 821 return; 822 } 823 824 /* send the read command */ 825 critical_enter(); 826 SCD_WRITE(sc, OREG_WPARAMS, sdata[0]); 827 SCD_WRITE(sc, OREG_WPARAMS, sdata[1]); 828 SCD_WRITE(sc, OREG_WPARAMS, sdata[2]); 829 SCD_WRITE(sc, OREG_WPARAMS, 0); 830 SCD_WRITE(sc, OREG_WPARAMS, 0); 831 SCD_WRITE(sc, OREG_WPARAMS, 1); 832 SCD_WRITE(sc, OREG_COMMAND, CMD_READ); 833 critical_exit(); 834 835 mbx->count = RDELAY_WAITREAD; 836 for (i = 0; i < 50; i++) { 837 if (STATUS_BIT(sc, SBIT_DATA_READY)) 838 goto got_data; 839 DELAY(100); 840 } 841 842 sc->ch_state = SCD_S_WAITREAD; 843 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 844 return; 845 846 case SCD_S_WAITREAD: 847 sc->ch_state = SCD_S_WAITREAD; 848 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 849 if (mbx->count-- <= 0) { 850 if (STATUS_BIT(sc, SBIT_RESULT_READY)) 851 goto got_param; 852 device_printf(sc->dev, "timeout while reading data\n"); 853 goto readerr; 854 } 855 if (!STATUS_BIT(sc, SBIT_DATA_READY)) { 856 process_attention(sc); 857 if (!(sc->data.flags & SCDVALID)) 858 goto changed; 859 sc->ch_state = SCD_S_WAITREAD; 860 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 861 return; 862 } 863 XDEBUG(sc, 2, "mbx->count (after RDY_BIT) = %d(%d)\n", mbx->count, RDELAY_WAITREAD); 864 865got_data: 866 /* data is ready */ 867 addr = bp->bio_data + mbx->skip; 868 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); 869 SCD_READ_MULTI(sc, IREG_DATA, addr, mbx->sz); 870 871 mbx->count = 100; 872 for (i = 0; i < 20; i++) { 873 if (STATUS_BIT(sc, SBIT_RESULT_READY)) 874 goto waitfor_param; 875 DELAY(100); 876 } 877 goto waitfor_param; 878 879 case SCD_S_WAITPARAM: 880 sc->ch_state = SCD_S_WAITPARAM; 881 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 882 if (mbx->count-- <= 0) { 883 device_printf(sc->dev, "timeout waiting for params\n"); 884 goto readerr; 885 } 886 887waitfor_param: 888 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { 889 sc->ch_state = SCD_S_WAITPARAM; 890 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 891 return; 892 } 893#ifdef SCD_DEBUG 894 if (mbx->count < 100 && scd_debuglevel > 0) 895 device_printf(sc->dev, "mbx->count (paramwait) = %d(%d)\n", mbx->count, 100); 896#endif 897 898got_param: 899 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 900 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 901 case 0x50: 902 switch (i) { 903 case ERR_FATAL_READ_ERROR1: 904 case ERR_FATAL_READ_ERROR2: 905 device_printf(sc->dev, "unrecoverable read error 0x%x\n", i); 906 goto harderr; 907 } 908 break; 909 case 0x20: 910 i = SCD_READ(sc, IREG_RESULT); 911 switch (i) { 912 case ERR_NOT_SPINNING: 913 XDEBUG(sc, 1, "read error: drive not spinning\n"); 914 if (mbx->retry-- > 0) { 915 state = SCD_S_BEGIN1; 916 sc->data.flags &= ~SCDSPINNING; 917 goto loop; 918 } 919 goto harderr; 920 default: 921 print_error(sc, i); 922 goto readerr; 923 } 924 case 0x00: 925 i = SCD_READ(sc, IREG_RESULT); 926 break; 927 } 928 929 if (--mbx->nblk > 0) { 930 mbx->skip += mbx->sz; 931 goto nextblock; 932 } 933 934 /* return buffer */ 935 bp->bio_resid = 0; 936 biodone(bp); 937 938 sc->data.flags &= ~SCDMBXBSY; 939 scd_start(sc); 940 return; 941 } 942 943readerr: 944 if (mbx->retry-- > 0) { 945 device_printf(sc->dev, "retrying ...\n"); 946 state = SCD_S_BEGIN1; 947 goto loop; 948 } 949harderr: 950 /* invalidate the buffer */ 951 bp->bio_error = EIO; 952 bp->bio_flags |= BIO_ERROR; 953 bp->bio_resid = bp->bio_bcount; 954 biodone(bp); 955 956 sc->data.flags &= ~SCDMBXBSY; 957 scd_start(sc); 958 return; 959 960changed: 961 device_printf(sc->dev, "media changed\n"); 962 goto harderr; 963} 964 965static void 966hsg2msf(int hsg, bcd_t *msf) 967{ 968 969 hsg += 150; 970 M_msf(msf) = bin2bcd(hsg / 4500); 971 hsg %= 4500; 972 S_msf(msf) = bin2bcd(hsg / 75); 973 F_msf(msf) = bin2bcd(hsg % 75); 974} 975 976static int 977msf2hsg(bcd_t *msf) 978{ 979 980 return (bcd2bin(M_msf(msf)) * 60 + 981 bcd2bin(S_msf(msf))) * 75 + 982 bcd2bin(F_msf(msf)) - 150; 983} 984 985static void 986process_attention(struct scd_softc *sc) 987{ 988 unsigned char code; 989 int count = 0; 990 991 while (IS_ATTENTION(sc) && count++ < 30) { 992 SCD_WRITE(sc, OREG_CONTROL, CBIT_ATTENTION_CLEAR); 993 code = SCD_READ(sc, IREG_RESULT); 994 995#ifdef SCD_DEBUG 996 if (scd_debuglevel > 0) { 997 if (count == 1) 998 device_printf(sc->dev, "DEBUG: ATTENTIONS = 0x%x", code); 999 else 1000 printf(",0x%x", code); 1001 } 1002#endif 1003 1004 switch (code) { 1005 case ATTEN_SPIN_DOWN: 1006 sc->data.flags &= ~SCDSPINNING; 1007 break; 1008 1009 case ATTEN_SPIN_UP_DONE: 1010 sc->data.flags |= SCDSPINNING; 1011 break; 1012 1013 case ATTEN_AUDIO_DONE: 1014 sc->data.audio_status = CD_AS_PLAY_COMPLETED; 1015 break; 1016 1017 case ATTEN_DRIVE_LOADED: 1018 sc->data.flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); 1019 sc->data.audio_status = CD_AS_AUDIO_INVALID; 1020 break; 1021 1022 case ATTEN_EJECT_PUSHED: 1023 sc->data.flags &= ~SCDVALID; 1024 break; 1025 } 1026 DELAY(100); 1027 } 1028#ifdef SCD_DEBUG 1029 if (scd_debuglevel > 0 && count > 0) 1030 printf("\n"); 1031#endif 1032} 1033 1034/* Returns 0 OR sony error code */ 1035static int 1036spin_up(struct scd_softc *sc) 1037{ 1038 unsigned char res_reg[12]; 1039 unsigned int res_size; 1040 int rc; 1041 int loop_count = 0; 1042 1043again: 1044 rc = send_cmd(sc, CMD_SPIN_UP, 0, 0, res_reg, &res_size); 1045 if (rc != 0) { 1046 XDEBUG(sc, 2, "CMD_SPIN_UP error 0x%x\n", rc); 1047 return (rc); 1048 } 1049 1050 if (!(sc->data.flags & SCDTOC)) { 1051 rc = send_cmd(sc, CMD_READ_TOC, 0); 1052 if (rc == ERR_NOT_SPINNING) { 1053 if (loop_count++ < 3) 1054 goto again; 1055 return (rc); 1056 } 1057 if (rc != 0) 1058 return (rc); 1059 } 1060 1061 sc->data.flags |= SCDSPINNING; 1062 1063 return (0); 1064} 1065 1066static struct sony_tracklist * 1067get_tl(struct sony_toc *toc, int size) 1068{ 1069 struct sony_tracklist *tl = &toc->tracks[0]; 1070 1071 if (tl->track != 0xb0) 1072 return (tl); 1073 (char *)tl += 9; 1074 if (tl->track != 0xb1) 1075 return (tl); 1076 (char *)tl += 9; 1077 if (tl->track != 0xb2) 1078 return (tl); 1079 (char *)tl += 9; 1080 if (tl->track != 0xb3) 1081 return (tl); 1082 (char *)tl += 9; 1083 if (tl->track != 0xb4) 1084 return (tl); 1085 (char *)tl += 9; 1086 if (tl->track != 0xc0) 1087 return (tl); 1088 (char *)tl += 9; 1089 return (tl); 1090} 1091 1092static int 1093read_toc(struct scd_softc *sc) 1094{ 1095 struct sony_toc toc; 1096 struct sony_tracklist *tl; 1097 int rc, i, j; 1098 u_long first, last; 1099 1100 rc = send_cmd(sc, CMD_GET_TOC, 1, 1); 1101 if (rc < 0) 1102 return (rc); 1103 if (rc > sizeof(toc)) { 1104 device_printf(sc->dev, "program error: toc too large (%d)\n", rc); 1105 return (EIO); 1106 } 1107 if (get_result(sc, rc, (u_char *)&toc) != 0) 1108 return (EIO); 1109 1110 XDEBUG(sc, 1, "toc read. len = %d, sizeof(toc) = %d\n", rc, sizeof(toc)); 1111 1112 tl = get_tl(&toc, rc); 1113 first = msf2hsg(tl->start_msf); 1114 last = msf2hsg(toc.lead_out_start_msf); 1115 sc->data.blksize = SCDBLKSIZE; 1116 sc->data.disksize = last*sc->data.blksize/DEV_BSIZE; 1117 1118 XDEBUG(sc, 1, "firstsector = %ld, lastsector = %ld", first, last); 1119 1120 sc->data.first_track = bcd2bin(toc.first_track); 1121 sc->data.last_track = bcd2bin(toc.last_track); 1122 if (sc->data.last_track > (MAX_TRACKS-2)) 1123 sc->data.last_track = MAX_TRACKS-2; 1124 for (j = 0, i = sc->data.first_track; i <= sc->data.last_track; i++, j++) { 1125 sc->data.toc[i].adr = tl[j].adr; 1126 sc->data.toc[i].ctl = tl[j].ctl; /* for xcdplayer */ 1127 bcopy(tl[j].start_msf, sc->data.toc[i].start_msf, 3); 1128#ifdef SCD_DEBUG 1129 if (scd_debuglevel > 0) { 1130 if ((j % 3) == 0) { 1131 printf("\n"); 1132 device_printf(sc->dev, "tracks "); 1133 } 1134 printf("[%03d: %2d %2d %2d] ", i, 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 bcopy(toc.lead_out_start_msf, sc->data.toc[sc->data.last_track+1].start_msf, 3); 1142#ifdef SCD_DEBUG 1143 if (scd_debuglevel > 0) { 1144 i = sc->data.last_track+1; 1145 printf("[END: %2d %2d %2d]\n", 1146 bcd2bin(sc->data.toc[i].start_msf[0]), 1147 bcd2bin(sc->data.toc[i].start_msf[1]), 1148 bcd2bin(sc->data.toc[i].start_msf[2])); 1149 } 1150#endif 1151 1152 sc->data.flags |= SCDTOC; 1153 1154 return (0); 1155} 1156 1157static void 1158init_drive(struct scd_softc *sc) 1159{ 1160 int rc; 1161 1162 rc = send_cmd(sc, CMD_SET_DRIVE_PARAM, 2, 1163 0x05, 0x03 | ((sc->data.double_speed) ? 0x04: 0)); 1164 if (rc != 0) 1165 device_printf(sc->dev, "Unable to set parameters. Errcode = 0x%x\n", rc); 1166} 1167 1168/* Returns 0 or errno */ 1169static int 1170get_result(struct scd_softc *sc, int result_len, u_char *result) 1171{ 1172 int loop_index = 2; /* send_cmd() reads two bytes ... */ 1173 1174 XDEBUG(sc, 1, "DEBUG: get_result: bytes=%d\n", result_len); 1175 1176 while (result_len-- > 0) { 1177 if (loop_index++ >= 10) { 1178 loop_index = 1; 1179 if (waitfor_status_bits(sc, SBIT_RESULT_READY, 0)) 1180 return (EIO); 1181 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1182 } 1183 if (result) 1184 *result++ = SCD_READ(sc, IREG_RESULT); 1185 else 1186 (void)SCD_READ(sc, IREG_RESULT); 1187 } 1188 return (0); 1189} 1190 1191/* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ 1192static int 1193send_cmd(struct scd_softc *sc, u_char cmd, u_int nargs, ...) 1194{ 1195 va_list ap; 1196 u_char c; 1197 int rc; 1198 int i; 1199 1200 if (waitfor_status_bits(sc, 0, SBIT_BUSY)) { 1201 device_printf(sc->dev, "drive busy\n"); 1202 return (-0x100); 1203 } 1204 1205 XDEBUG(sc, 1, "DEBUG: send_cmd: cmd=0x%x nargs=%d", cmd, nargs); 1206 1207 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1208 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); 1209 1210 for (i = 0; i < 100; i++) 1211 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) 1212 break; 1213 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { 1214 XDEBUG(sc, 1, "\nwparam timeout\n"); 1215 return (-EIO); 1216 } 1217 1218 va_start(ap, nargs); 1219 for (i = 0; i < nargs; i++) { 1220 c = (u_char)va_arg(ap, int); 1221 SCD_WRITE(sc, OREG_WPARAMS, c); 1222 XDEBUG(sc, 1, ",{0x%x}", c); 1223 } 1224 va_end(ap); 1225 XDEBUG(sc, 1, "\n"); 1226 1227 SCD_WRITE(sc, OREG_COMMAND, cmd); 1228 1229 rc = waitfor_status_bits(sc, SBIT_RESULT_READY, SBIT_BUSY); 1230 if (rc) 1231 return (-0x100); 1232 1233 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1234 switch ((rc = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 1235 case 0x20: 1236 rc = SCD_READ(sc, IREG_RESULT); 1237 /* FALLTHROUGH */ 1238 case 0x50: 1239 XDEBUG(sc, 1, "DEBUG: send_cmd: drive_error=0x%x\n", rc); 1240 return (-rc); 1241 case 0x00: 1242 default: 1243 rc = SCD_READ(sc, IREG_RESULT); 1244 XDEBUG(sc, 1, "DEBUG: send_cmd: result_len=%d\n", rc); 1245 return (rc); 1246 } 1247} 1248 1249static void 1250print_error(struct scd_softc *sc, int errcode) 1251{ 1252 1253 switch (errcode) { 1254 case -ERR_CD_NOT_LOADED: 1255 device_printf(sc->dev, "door is open\n"); 1256 break; 1257 case -ERR_NO_CD_INSIDE: 1258 device_printf(sc->dev, "no cd inside\n"); 1259 break; 1260 default: 1261 if (errcode == -0x100 || errcode > 0) 1262 device_printf(sc->dev, "device timeout\n"); 1263 else 1264 device_printf(sc->dev, "unexpected error 0x%x\n", -errcode); 1265 break; 1266 } 1267} 1268 1269/* Returns 0 or errno value */ 1270static int 1271waitfor_status_bits(struct scd_softc *sc, int bits_set, int bits_clear) 1272{ 1273 u_int flags = sc->data.flags; 1274 u_int max_loop; 1275 u_char c = 0; 1276 1277 if (flags & SCDPROBING) { 1278 max_loop = 0; 1279 while (max_loop++ < 1000) { 1280 c = SCD_READ(sc, IREG_STATUS); 1281 if (c == 0xff) 1282 return (EIO); 1283 if (c & SBIT_ATTENTION) { 1284 process_attention(sc); 1285 continue; 1286 } 1287 if ((c & bits_set) == bits_set && 1288 (c & bits_clear) == 0) 1289 { 1290 break; 1291 } 1292 DELAY(10000); 1293 } 1294 } else { 1295 max_loop = 100; 1296 while (max_loop-- > 0) { 1297 c = SCD_READ(sc, IREG_STATUS); 1298 if (c & SBIT_ATTENTION) { 1299 process_attention(sc); 1300 continue; 1301 } 1302 if ((c & bits_set) == bits_set && 1303 (c & bits_clear) == 0) 1304 { 1305 break; 1306 } 1307 tsleep(waitfor_status_bits, PZERO - 1, "waitfor", hz/10); 1308 } 1309 } 1310 if ((c & bits_set) == bits_set && 1311 (c & bits_clear) == 0) 1312 { 1313 return (0); 1314 } 1315#ifdef SCD_DEBUG 1316 if (scd_debuglevel > 0) 1317 device_printf(sc->dev, "DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", c, bits_set, bits_clear); 1318 else 1319#endif 1320 device_printf(sc->dev, "timeout.\n"); 1321 return (EIO); 1322} 1323 1324/* these two routines for xcdplayer - "borrowed" from mcd.c */ 1325static int 1326scd_toc_header (struct scd_softc *sc, struct ioc_toc_header* th) 1327{ 1328 int rc; 1329 1330 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1331 print_error(sc, rc); 1332 return (EIO); 1333 } 1334 1335 th->starting_track = sc->data.first_track; 1336 th->ending_track = sc->data.last_track; 1337 th->len = 0; /* not used */ 1338 1339 return (0); 1340} 1341 1342static int 1343scd_toc_entrys (struct scd_softc *sc, struct ioc_read_toc_entry *te) 1344{ 1345 struct cd_toc_entry toc_entry; 1346 int rc, i, len = te->data_len; 1347 1348 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1349 print_error(sc, rc); 1350 return (EIO); 1351 } 1352 1353 /* find the toc to copy*/ 1354 i = te->starting_track; 1355 if (i == SCD_LASTPLUS1) 1356 i = sc->data.last_track + 1; 1357 1358 /* verify starting track */ 1359 if (i < sc->data.first_track || i > sc->data.last_track+1) 1360 return (EINVAL); 1361 1362 /* valid length ? */ 1363 if (len < sizeof(struct cd_toc_entry) 1364 || (len % sizeof(struct cd_toc_entry)) != 0) 1365 return (EINVAL); 1366 1367 /* copy the toc data */ 1368 toc_entry.control = sc->data.toc[i].ctl; 1369 toc_entry.addr_type = te->address_format; 1370 toc_entry.track = i; 1371 if (te->address_format == CD_MSF_FORMAT) { 1372 toc_entry.addr.msf.unused = 0; 1373 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]); 1374 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); 1375 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); 1376 } 1377 1378 /* copy the data back */ 1379 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) 1380 return (EFAULT); 1381 1382 return (0); 1383} 1384 1385 1386static int 1387scd_toc_entry (struct scd_softc *sc, struct ioc_read_toc_single_entry *te) 1388{ 1389 struct cd_toc_entry toc_entry; 1390 int rc, i; 1391 1392 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1393 print_error(sc, rc); 1394 return (EIO); 1395 } 1396 1397 /* find the toc to copy*/ 1398 i = te->track; 1399 if (i == SCD_LASTPLUS1) 1400 i = sc->data.last_track + 1; 1401 1402 /* verify starting track */ 1403 if (i < sc->data.first_track || i > sc->data.last_track+1) 1404 return (EINVAL); 1405 1406 /* copy the toc data */ 1407 toc_entry.control = sc->data.toc[i].ctl; 1408 toc_entry.addr_type = te->address_format; 1409 toc_entry.track = i; 1410 if (te->address_format == CD_MSF_FORMAT) { 1411 toc_entry.addr.msf.unused = 0; 1412 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]); 1413 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); 1414 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); 1415 } 1416 1417 /* copy the data back */ 1418 bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry)); 1419 1420 return (0); 1421} 1422