mcd.c revision 12678
1/* 2 * Copyright 1993 by Holger Veit (data part) 3 * Copyright 1993 by Brian Moore (audio part) 4 * Changes Copyright 1993 by Gary Clark II 5 * Changes Copyright (C) 1994-1995 by Andrey A. Chernov, Moscow, Russia 6 * 7 * Rewrote probe routine to work on newer Mitsumi drives. 8 * Additional changes (C) 1994 by Jordan K. Hubbard 9 * 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This software was developed by Holger Veit and Brian Moore 23 * for use with "386BSD" and similar operating systems. 24 * "Similar operating systems" includes mainly non-profit oriented 25 * systems for research and education, including but not restricted to 26 * "NetBSD", "FreeBSD", "Mach" (by CMU). 27 * 4. Neither the name of the developer(s) nor the name "386BSD" 28 * may be used to endorse or promote products derived from this 29 * software without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY 32 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 34 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER(S) BE 35 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 36 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 37 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 38 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 39 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 40 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 41 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 42 * 43 * $Id: mcd.c,v 1.52 1995/12/08 11:14:34 julian Exp $ 44 */ 45static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore"; 46 47#include "mcd.h" 48#if NMCD > 0 49#include <sys/types.h> 50#include <sys/param.h> 51#include <sys/systm.h> 52#include <sys/conf.h> 53#include <sys/file.h> 54#include <sys/buf.h> 55#include <sys/proc.h> 56#include <sys/stat.h> 57#include <sys/uio.h> 58#include <sys/ioctl.h> 59#include <sys/cdio.h> 60#include <sys/errno.h> 61#include <sys/dkbad.h> 62#include <sys/disklabel.h> 63#include <sys/devconf.h> 64#include <sys/kernel.h> 65#ifdef DEVFS 66#include <sys/devfsext.h> 67#endif /*DEVFS*/ 68 69#include <machine/clock.h> 70 71#include <i386/i386/cons.h> 72 73#include <i386/isa/isa.h> 74#include <i386/isa/isa_device.h> 75#include <i386/isa/mcdreg.h> 76 77 78#define MCD_TRACE(format, args...) \ 79{ \ 80 if (mcd_data[unit].debug) { \ 81 printf("mcd%d: status=0x%02x: ", \ 82 unit, mcd_data[unit].status); \ 83 printf(format, ## args); \ 84 } \ 85} 86 87#define mcd_part(dev) ((minor(dev)) & 7) 88#define mcd_unit(dev) (((minor(dev)) & 0x38) >> 3) 89#define mcd_phys(dev) (((minor(dev)) & 0x40) >> 6) 90#define RAW_PART 2 91 92/* flags */ 93#define MCDOPEN 0x0001 /* device opened */ 94#define MCDVALID 0x0002 /* parameters loaded */ 95#define MCDINIT 0x0004 /* device is init'd */ 96#define MCDNEWMODEL 0x0008 /* device is new model */ 97#define MCDLABEL 0x0010 /* label is read */ 98#define MCDPROBING 0x0020 /* probing */ 99#define MCDREADRAW 0x0040 /* read raw mode (2352 bytes) */ 100#define MCDVOLINFO 0x0080 /* already read volinfo */ 101#define MCDTOC 0x0100 /* already read toc */ 102#define MCDMBXBSY 0x0200 /* local mbx is busy */ 103 104/* status */ 105#define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */ 106#define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */ 107#define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */ 108#define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */ 109 110/* These are apparently the different states a mitsumi can get up to */ 111#define MCDCDABSENT 0x0030 112#define MCDCDPRESENT 0x0020 113#define MCDSCLOSED 0x0080 114#define MCDSOPEN 0x00a0 115 116#define MCD_MD_UNKNOWN (-1) 117 118/* toc */ 119#define MCD_MAXTOCS 104 /* from the Linux driver */ 120#define MCD_LASTPLUS1 170 /* special toc entry */ 121 122#define MCD_TYPE_UNKNOWN 0 123#define MCD_TYPE_LU002S 1 124#define MCD_TYPE_LU005S 2 125#define MCD_TYPE_FX001 3 126#define MCD_TYPE_FX001D 4 127 128struct mcd_mbx { 129 short unit; 130 short port; 131 short retry; 132 short nblk; 133 int sz; 134 u_long skip; 135 struct buf *bp; 136 int p_offset; 137 short count; 138 short mode; 139}; 140 141struct mcd_data { 142 short type; 143 char *name; 144 short config; 145 short flags; 146 u_char read_command; 147 short status; 148 int blksize; 149 u_long disksize; 150 int iobase; 151 struct disklabel dlabel; 152 int partflags[MAXPARTITIONS]; 153 int openflags; 154 struct mcd_volinfo volinfo; 155 struct mcd_qchninfo toc[MCD_MAXTOCS]; 156 short audio_status; 157 short curr_mode; 158 struct mcd_read2 lastpb; 159 short debug; 160 struct buf head; /* head of buf queue */ 161 struct mcd_mbx mbx; 162#ifdef DEVFS 163 void *ra_devfs_token; /* store the devfs handle here */ 164 void *rc_devfs_token; /* store the devfs handle here */ 165 void *a_devfs_token; /* store the devfs handle here */ 166 void *c_devfs_token; /* store the devfs handle here */ 167#endif 168} mcd_data[NMCD]; 169 170/* reader state machine */ 171#define MCD_S_BEGIN 0 172#define MCD_S_BEGIN1 1 173#define MCD_S_WAITSTAT 2 174#define MCD_S_WAITMODE 3 175#define MCD_S_WAITREAD 4 176 177/* prototypes */ 178static void mcd_start(int unit); 179static int mcd_getdisklabel(int unit); 180#ifdef NOTYET 181static void mcd_configure(struct mcd_data *cd); 182#endif 183static int mcd_get(int unit, char *buf, int nmax); 184static int mcd_setflags(int unit,struct mcd_data *cd); 185static int mcd_getstat(int unit,int sflg); 186static int mcd_send(int unit, int cmd,int nretrys); 187static int bcd2bin(bcd_t b); 188static bcd_t bin2bcd(int b); 189static void hsg2msf(int hsg, bcd_t *msf); 190static int msf2hsg(bcd_t *msf); 191static int mcd_volinfo(int unit); 192static int mcd_waitrdy(int port,int dly); 193static void mcd_doread(int state, struct mcd_mbx *mbxin); 194static void mcd_soft_reset(int unit); 195static int mcd_hard_reset(int unit); 196static int mcd_setmode(int unit, int mode); 197static int mcd_getqchan(int unit, struct mcd_qchninfo *q); 198static int mcd_subchan(int unit, struct ioc_read_subchannel *sc); 199static int mcd_toc_header(int unit, struct ioc_toc_header *th); 200static int mcd_read_toc(int unit); 201static int mcd_toc_entrys(int unit, struct ioc_read_toc_entry *te); 202static int mcd_stop(int unit); 203static int mcd_eject(int unit); 204static int mcd_playtracks(int unit, struct ioc_play_track *pt); 205static int mcd_play(int unit, struct mcd_read2 *pb); 206static int mcd_playmsf(int unit, struct ioc_play_msf *pt); 207static int mcd_pause(int unit); 208static int mcd_resume(int unit); 209static int mcd_lock_door(int unit, int lock); 210static int mcd_close_tray(int unit); 211 212static int mcd_probe(struct isa_device *dev); 213static int mcd_attach(struct isa_device *dev); 214struct isa_driver mcddriver = { mcd_probe, mcd_attach, "mcd" }; 215 216static d_open_t mcdopen; 217static d_close_t mcdclose; 218static d_ioctl_t mcdioctl; 219static d_psize_t mcdsize; 220static d_strategy_t mcdstrategy; 221 222#define CDEV_MAJOR 29 223#define BDEV_MAJOR 7 224extern struct cdevsw mcd_cdevsw; 225static struct bdevsw mcd_bdevsw = 226 { mcdopen, mcdclose, mcdstrategy, mcdioctl, /*7*/ 227 nxdump, mcdsize, 0, "mcd", &mcd_cdevsw, -1 }; 228 229static struct cdevsw mcd_cdevsw = 230 { mcdopen, mcdclose, rawread, nowrite, /*29*/ 231 mcdioctl, nostop, nullreset, nodevtotty, 232 seltrue, nommap, mcdstrategy, "mcd", 233 &mcd_bdevsw, -1 }; 234 235#define mcd_put(port,byte) outb(port,byte) 236 237#define MCD_RETRYS 5 238#define MCD_RDRETRYS 8 239 240#define CLOSE_TRAY_SECS 8 241#define DISK_SENSE_SECS 3 242#define WAIT_FRAC 4 243 244/* several delays */ 245#define RDELAY_WAITSTAT 300 246#define RDELAY_WAITMODE 300 247#define RDELAY_WAITREAD 800 248 249#define MIN_DELAY 15 250#define DELAY_GETREPLY 5000000 251 252static struct kern_devconf kdc_mcd[NMCD] = { { 253 0, 0, 0, /* filled in by dev_attach */ 254 "mcd", 0, { MDDT_ISA, 0, "bio" }, 255 isa_generic_externalize, 0, 0, ISA_EXTERNALLEN, 256 &kdc_isa0, /* parent */ 257 0, /* parentdata */ 258 DC_UNCONFIGURED, /* status */ 259 "Mitsumi CD-ROM controller", /* properly filled later */ 260 DC_CLS_RDISK 261} }; 262 263static inline void 264mcd_registerdev(struct isa_device *id) 265{ 266 if(id->id_unit) 267 kdc_mcd[id->id_unit] = kdc_mcd[0]; 268 kdc_mcd[id->id_unit].kdc_unit = id->id_unit; 269 kdc_mcd[id->id_unit].kdc_isa = id; 270 dev_attach(&kdc_mcd[id->id_unit]); 271} 272 273int mcd_attach(struct isa_device *dev) 274{ 275 int unit = dev->id_unit; 276 struct mcd_data *cd = mcd_data + unit; 277 char name[32]; 278 279 cd->iobase = dev->id_iobase; 280 cd->flags |= MCDINIT; 281 mcd_soft_reset(unit); 282 283#ifdef NOTYET 284 /* wire controller for interrupts and dma */ 285 mcd_configure(cd); 286#endif 287 kdc_mcd[unit].kdc_state = DC_IDLE; 288 /* name filled in probe */ 289 kdc_mcd[unit].kdc_description = mcd_data[unit].name; 290#ifdef DEVFS 291#define MCD_UID 0 292#define MCD_GID 13 293 sprintf(name, "rmcd%da",unit); 294 cd->ra_devfs_token = devfs_add_devsw( 295 "/", name, &mcd_cdevsw, (unit * 8 ) + 0, 296 DV_CHR, MCD_UID, MCD_GID, 0600); 297 298 sprintf(name, "rmcd%dc",unit); 299 cd->rc_devfs_token = devfs_add_devsw( 300 "/", name, &mcd_cdevsw, (unit * 8 ) + RAW_PART, 301 DV_CHR, MCD_UID, MCD_GID, 0600); 302 303 sprintf(name, "mcd%da",unit); 304 cd->a_devfs_token = devfs_add_devsw( 305 "/", name, &mcd_bdevsw, (unit * 8 ) + 0, 306 DV_BLK, MCD_UID, MCD_GID, 0600); 307 308 sprintf(name, "mcd%dc",unit); 309 cd->c_devfs_token = devfs_add_devsw( 310 "/", name, &mcd_bdevsw, (unit * 8 ) + RAW_PART, 311 DV_BLK, MCD_UID, MCD_GID, 0600); 312#endif 313 return 1; 314} 315 316int mcdopen(dev_t dev, int flags, int fmt, struct proc *p) 317{ 318 int unit,part,phys,r,retry; 319 struct mcd_data *cd; 320 321 unit = mcd_unit(dev); 322 if (unit >= NMCD) 323 return ENXIO; 324 325 cd = mcd_data + unit; 326 part = mcd_part(dev); 327 phys = mcd_phys(dev); 328 329 /* not initialized*/ 330 if (!(cd->flags & MCDINIT)) 331 return ENXIO; 332 333 /* invalidated in the meantime? mark all open part's invalid */ 334 if (!(cd->flags & MCDVALID) && cd->openflags) 335 return ENXIO; 336 337 if (mcd_close_tray(unit) == EIO) /* detect disk change too */ 338 return EIO; 339 340 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 341 || !(cd->status & MCDDSKIN)) 342 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) { 343 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdsns", hz/WAIT_FRAC); 344 if ((r = mcd_getstat(unit,1)) == -1) 345 return EIO; 346 if (r != -2) 347 break; 348 } 349 350 if (cd->status & MCDDOOROPEN) { 351 printf("mcd%d: door is open\n", unit); 352 return ENXIO; 353 } 354 if (!(cd->status & MCDDSKIN)) { 355 printf("mcd%d: no CD inside\n", unit); 356 return ENXIO; 357 } 358 if (cd->status & MCDDSKCHNG) { 359 printf("mcd%d: CD not sensed\n", unit); 360 return ENXIO; 361 } 362 363 if (mcdsize(dev) < 0) { 364 printf("mcd%d: failed to get disk size\n",unit); 365 return ENXIO; 366 } else 367 cd->flags |= MCDVALID; 368 369 /* XXX get a default disklabel */ 370 mcd_getdisklabel(unit); 371 372MCD_TRACE("open: partition=%d, disksize = %ld, blksize=%d\n", 373 part, cd->disksize, cd->blksize); 374 375 if (part == RAW_PART || 376 (part < cd->dlabel.d_npartitions && 377 cd->dlabel.d_partitions[part].p_fstype != FS_UNUSED)) { 378 cd->partflags[part] |= MCDOPEN; 379 cd->openflags |= (1<<part); 380 if (part == RAW_PART && phys != 0) 381 cd->partflags[part] |= MCDREADRAW; 382 kdc_mcd[unit].kdc_state = DC_BUSY; 383 (void) mcd_lock_door(unit, MCD_LK_LOCK); 384 if (!(cd->flags & MCDVALID)) 385 return ENXIO; 386 return 0; 387 } 388 389 return ENXIO; 390} 391 392int mcdclose(dev_t dev, int flags, int fmt, struct proc *p) 393{ 394 int unit,part,phys; 395 struct mcd_data *cd; 396 397 unit = mcd_unit(dev); 398 if (unit >= NMCD) 399 return ENXIO; 400 401 cd = mcd_data + unit; 402 part = mcd_part(dev); 403 phys = mcd_phys(dev); 404 405 if (!(cd->flags & MCDINIT)) 406 return ENXIO; 407 408 kdc_mcd[unit].kdc_state = DC_IDLE; 409 (void) mcd_lock_door(unit, MCD_LK_UNLOCK); 410 411 if (!(cd->flags & MCDVALID)) 412 return 0; 413 414 /* close channel */ 415 cd->partflags[part] &= ~(MCDOPEN|MCDREADRAW); 416 cd->openflags &= ~(1<<part); 417 MCD_TRACE("close: partition=%d\n", part); 418 419 return 0; 420} 421 422void 423mcdstrategy(struct buf *bp) 424{ 425 struct mcd_data *cd; 426 struct buf *qp; 427 int s; 428 429 int unit = mcd_unit(bp->b_dev); 430 431 cd = mcd_data + unit; 432 433 /* test validity */ 434/*MCD_TRACE("strategy: buf=0x%lx, unit=%ld, block#=%ld bcount=%ld\n", 435 bp,unit,bp->b_blkno,bp->b_bcount);*/ 436 if (unit >= NMCD || bp->b_blkno < 0) { 437 printf("mcdstrategy: unit = %d, blkno = %ld, bcount = %ld\n", 438 unit, bp->b_blkno, bp->b_bcount); 439 pg("mcd: mcdstratregy failure"); 440 bp->b_error = EINVAL; 441 bp->b_flags |= B_ERROR; 442 goto bad; 443 } 444 445 /* if device invalidated (e.g. media change, door open), error */ 446 if (!(cd->flags & MCDVALID)) { 447MCD_TRACE("strategy: drive not valid\n"); 448 bp->b_error = EIO; 449 goto bad; 450 } 451 452 /* read only */ 453 if (!(bp->b_flags & B_READ)) { 454 bp->b_error = EROFS; 455 goto bad; 456 } 457 458 /* no data to read */ 459 if (bp->b_bcount == 0) 460 goto done; 461 462 /* for non raw access, check partition limits */ 463 if (mcd_part(bp->b_dev) != RAW_PART) { 464 if (!(cd->flags & MCDLABEL)) { 465 bp->b_error = EIO; 466 goto bad; 467 } 468 /* adjust transfer if necessary */ 469 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) { 470 goto done; 471 } 472 } else { 473 bp->b_pblkno = bp->b_blkno; 474 bp->b_resid = 0; 475 } 476 477 /* queue it */ 478 qp = &cd->head; 479 s = splbio(); 480 disksort(qp,bp); 481 splx(s); 482 483 /* now check whether we can perform processing */ 484 mcd_start(unit); 485 return; 486 487bad: 488 bp->b_flags |= B_ERROR; 489done: 490 bp->b_resid = bp->b_bcount; 491 biodone(bp); 492 return; 493} 494 495static void mcd_start(int unit) 496{ 497 struct mcd_data *cd = mcd_data + unit; 498 struct buf *bp, *qp = &cd->head; 499 struct partition *p; 500 register s = splbio(); 501 502 if (cd->flags & MCDMBXBSY) { 503 splx(s); 504 return; 505 } 506 507 if ((bp = qp->b_actf) != 0) { 508 /* block found to process, dequeue */ 509 /*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/ 510 qp->b_actf = bp->b_actf; /* changed from: bp->av_forw <se> */ 511 splx(s); 512 } else { 513 /* nothing to do */ 514 splx(s); 515 return; 516 } 517 518 /* changed media? */ 519 if (!(cd->flags & MCDVALID)) { 520 MCD_TRACE("mcd_start: drive not valid\n"); 521 return; 522 } 523 524 p = cd->dlabel.d_partitions + mcd_part(bp->b_dev); 525 526 cd->flags |= MCDMBXBSY; 527 if (cd->partflags[mcd_part(bp->b_dev)] & MCDREADRAW) 528 cd->flags |= MCDREADRAW; 529 cd->mbx.unit = unit; 530 cd->mbx.port = cd->iobase; 531 cd->mbx.retry = MCD_RETRYS; 532 cd->mbx.bp = bp; 533 cd->mbx.p_offset = p->p_offset; 534 535 /* calling the read routine */ 536 mcd_doread(MCD_S_BEGIN,&(cd->mbx)); 537 /* triggers mcd_start, when successful finished */ 538 return; 539} 540 541int mcdioctl(dev_t dev, int cmd, caddr_t addr, int flags, struct proc *p) 542{ 543 struct mcd_data *cd; 544 int unit,part; 545 546 unit = mcd_unit(dev); 547 part = mcd_part(dev); 548 cd = mcd_data + unit; 549 550 if (mcd_getstat(unit, 1) == -1) /* detect disk change too */ 551 return EIO; 552MCD_TRACE("ioctl called 0x%x\n", cmd); 553 554 switch (cmd) { 555 case DIOCSBAD: 556 if (!(cd->flags & MCDVALID)) 557 return ENXIO; 558 return EINVAL; 559 case DIOCGDINFO: 560 if (!(cd->flags & MCDVALID)) 561 return ENXIO; 562 *(struct disklabel *) addr = cd->dlabel; 563 return 0; 564 case DIOCGPART: 565 if (!(cd->flags & MCDVALID)) 566 return ENXIO; 567 ((struct partinfo *) addr)->disklab = &cd->dlabel; 568 ((struct partinfo *) addr)->part = 569 &cd->dlabel.d_partitions[mcd_part(dev)]; 570 return 0; 571 572 /* 573 * a bit silly, but someone might want to test something on a 574 * section of cdrom. 575 */ 576 case DIOCWDINFO: 577 case DIOCSDINFO: 578 if (!(cd->flags & MCDVALID)) 579 return ENXIO; 580 if ((flags & FWRITE) == 0) 581 return EBADF; 582 else { 583 return setdisklabel(&cd->dlabel, 584 (struct disklabel *) addr, 585 0); 586 } 587 case DIOCWLABEL: 588 if (!(cd->flags & MCDVALID)) 589 return ENXIO; 590 return EBADF; 591 case CDIOCPLAYTRACKS: 592 if (!(cd->flags & MCDVALID)) 593 return ENXIO; 594 return mcd_playtracks(unit, (struct ioc_play_track *) addr); 595 case CDIOCPLAYBLOCKS: 596 if (!(cd->flags & MCDVALID)) 597 return ENXIO; 598 return EINVAL; 599 case CDIOCPLAYMSF: 600 if (!(cd->flags & MCDVALID)) 601 return ENXIO; 602 return mcd_playmsf(unit, (struct ioc_play_msf *) addr); 603 case CDIOCREADSUBCHANNEL: 604 if (!(cd->flags & MCDVALID)) 605 return ENXIO; 606 return mcd_subchan(unit, (struct ioc_read_subchannel *) addr); 607 case CDIOREADTOCHEADER: 608 if (!(cd->flags & MCDVALID)) 609 return ENXIO; 610 return mcd_toc_header(unit, (struct ioc_toc_header *) addr); 611 case CDIOREADTOCENTRYS: 612 if (!(cd->flags & MCDVALID)) 613 return ENXIO; 614 return mcd_toc_entrys(unit, (struct ioc_read_toc_entry *) addr); 615 case CDIOCSETPATCH: 616 case CDIOCGETVOL: 617 case CDIOCSETVOL: 618 case CDIOCSETMONO: 619 case CDIOCSETSTERIO: 620 case CDIOCSETMUTE: 621 case CDIOCSETLEFT: 622 case CDIOCSETRIGHT: 623 return EINVAL; 624 case CDIOCRESUME: 625 if (!(cd->flags & MCDVALID)) 626 return ENXIO; 627 return mcd_resume(unit); 628 case CDIOCPAUSE: 629 if (!(cd->flags & MCDVALID)) 630 return ENXIO; 631 return mcd_pause(unit); 632 case CDIOCSTART: 633 if (!(cd->flags & MCDVALID)) 634 return ENXIO; 635 return EINVAL; 636 case CDIOCSTOP: 637 if (!(cd->flags & MCDVALID)) 638 return ENXIO; 639 return mcd_stop(unit); 640 case CDIOCEJECT: 641 return mcd_eject(unit); 642 case CDIOCSETDEBUG: 643 cd->debug = 1; 644 return 0; 645 case CDIOCCLRDEBUG: 646 cd->debug = 0; 647 return 0; 648 case CDIOCRESET: 649 return mcd_hard_reset(unit); 650 case CDIOCALLOW: 651 return mcd_lock_door(unit, MCD_LK_UNLOCK); 652 default: 653 return ENOTTY; 654 } 655 /*NOTREACHED*/ 656} 657 658/* this could have been taken from scsi/cd.c, but it is not clear 659 * whether the scsi cd driver is linked in 660 */ 661static int mcd_getdisklabel(int unit) 662{ 663 struct mcd_data *cd = mcd_data + unit; 664 665 if (cd->flags & MCDLABEL) 666 return -1; 667 668 bzero(&cd->dlabel,sizeof(struct disklabel)); 669 /* filled with spaces first */ 670 strncpy(cd->dlabel.d_typename," ", 671 sizeof(cd->dlabel.d_typename)); 672 strncpy(cd->dlabel.d_typename, cd->name, 673 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); 674 strncpy(cd->dlabel.d_packname,"unknown ", 675 sizeof(cd->dlabel.d_packname)); 676 cd->dlabel.d_secsize = cd->blksize; 677 cd->dlabel.d_nsectors = 100; 678 cd->dlabel.d_ntracks = 1; 679 cd->dlabel.d_ncylinders = (cd->disksize/100)+1; 680 cd->dlabel.d_secpercyl = 100; 681 cd->dlabel.d_secperunit = cd->disksize; 682 cd->dlabel.d_rpm = 300; 683 cd->dlabel.d_interleave = 1; 684 cd->dlabel.d_flags = D_REMOVABLE; 685 cd->dlabel.d_npartitions= 1; 686 cd->dlabel.d_partitions[0].p_offset = 0; 687 cd->dlabel.d_partitions[0].p_size = cd->disksize; 688 cd->dlabel.d_partitions[0].p_fstype = 9; 689 cd->dlabel.d_magic = DISKMAGIC; 690 cd->dlabel.d_magic2 = DISKMAGIC; 691 cd->dlabel.d_checksum = dkcksum(&cd->dlabel); 692 693 cd->flags |= MCDLABEL; 694 return 0; 695} 696 697int mcdsize(dev_t dev) 698{ 699 int size; 700 int unit = mcd_unit(dev); 701 struct mcd_data *cd = mcd_data + unit; 702 703 if (mcd_volinfo(unit) == 0) { 704 cd->blksize = MCDBLK; 705 size = msf2hsg(cd->volinfo.vol_msf); 706 cd->disksize = size * (MCDBLK/DEV_BSIZE); 707 return 0; 708 } 709 return -1; 710} 711 712/*************************************************************** 713 * lower level of driver starts here 714 **************************************************************/ 715 716#ifdef NOTDEF 717static char 718irqs[] = { 719 0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00, 720 0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00 721}; 722 723static char 724drqs[] = { 725 0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07, 726}; 727#endif 728 729#ifdef NOT_YET 730static void 731mcd_configure(struct mcd_data *cd) 732{ 733 outb(cd->iobase+mcd_config,cd->config); 734} 735#endif 736 737/* Wait for non-busy - return 0 on timeout */ 738static int 739twiddle_thumbs(int port, int unit, int count, char *whine) 740{ 741 int i; 742 743 for (i = 0; i < count; i++) { 744 if (!(inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)) 745 return 1; 746 } 747 printf("mcd%d: timeout %s\n", unit, whine); 748 return 0; 749} 750 751/* check to see if a Mitsumi CD-ROM is attached to the ISA bus */ 752 753int 754mcd_probe(struct isa_device *dev) 755{ 756 int port = dev->id_iobase; 757 int unit = dev->id_unit; 758 int i, j; 759 unsigned char stbytes[3]; 760 761 mcd_registerdev(dev); 762 mcd_data[unit].flags = MCDPROBING; 763 764#ifdef NOTDEF 765 /* get irq/drq configuration word */ 766 mcd_data[unit].config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/ 767#else 768 mcd_data[unit].config = 0; 769#endif 770 771 /* send a reset */ 772 outb(port+MCD_FLAGS, M_RESET); 773 774 /* 775 * delay awhile by getting any pending garbage (old data) and 776 * throwing it away. 777 */ 778 for (i = 1000000; i != 0; i--) 779 inb(port+MCD_FLAGS); 780 781 /* Get status */ 782 outb(port+MCD_DATA, MCD_CMDGETSTAT); 783 if (!twiddle_thumbs(port, unit, 1000000, "getting status")) 784 return 0; /* Timeout */ 785 /* Get version information */ 786 outb(port+MCD_DATA, MCD_CMDCONTINFO); 787 for (j = 0; j < 3; j++) { 788 if (!twiddle_thumbs(port, unit, 3000, "getting version info")) 789 return 0; 790 stbytes[j] = (inb(port+MCD_DATA) & 0xFF); 791 } 792 if (stbytes[1] == stbytes[2]) 793 return 0; 794 if (stbytes[2] >= 4 || stbytes[1] != 'M') { 795 outb(port+MCD_CTRL, M_PICKLE); 796 mcd_data[unit].flags |= MCDNEWMODEL; 797 } 798 mcd_data[unit].read_command = MCD_CMDSINGLESPEEDREAD; 799 switch (stbytes[1]) { 800 case 'M': 801 if (mcd_data[unit].flags & MCDNEWMODEL) { 802 mcd_data[unit].type = MCD_TYPE_LU005S; 803 mcd_data[unit].name = "Mitsumi LU005S"; 804 } else { 805 mcd_data[unit].type = MCD_TYPE_LU002S; 806 mcd_data[unit].name = "Mitsumi LU002S"; 807 } 808 break; 809 case 'F': 810 mcd_data[unit].type = MCD_TYPE_FX001; 811 mcd_data[unit].name = "Mitsumi FX001"; 812 break; 813 case 'D': 814 mcd_data[unit].type = MCD_TYPE_FX001D; 815 mcd_data[unit].name = "Mitsumi FX001D"; 816 mcd_data[unit].read_command = MCD_CMDDOUBLESPEEDREAD; 817 break; 818 default: 819 mcd_data[unit].type = MCD_TYPE_UNKNOWN; 820 mcd_data[unit].name = "Mitsumi ???"; 821 break; 822 } 823 printf("mcd%d: type %s, version info: %c %x\n", unit, mcd_data[unit].name, 824 stbytes[1], stbytes[2]); 825 826 return 4; 827} 828 829 830static int 831mcd_waitrdy(int port,int dly) 832{ 833 int i; 834 835 /* wait until flag port senses status ready */ 836 for (i=0; i<dly; i+=MIN_DELAY) { 837 if (!(inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)) 838 return 0; 839 DELAY(MIN_DELAY); 840 } 841 return -1; 842} 843 844static int 845mcd_getreply(int unit,int dly) 846{ 847 struct mcd_data *cd = mcd_data + unit; 848 int port = cd->iobase; 849 850 /* wait data to become ready */ 851 if (mcd_waitrdy(port,dly)<0) { 852 printf("mcd%d: timeout getreply\n",unit); 853 return -1; 854 } 855 856 /* get the data */ 857 return inb(port+mcd_status) & 0xFF; 858} 859 860static int 861mcd_getstat(int unit,int sflg) 862{ 863 int i; 864 struct mcd_data *cd = mcd_data + unit; 865 int port = cd->iobase; 866 867 /* get the status */ 868 if (sflg) 869 outb(port+mcd_command, MCD_CMDGETSTAT); 870 i = mcd_getreply(unit,DELAY_GETREPLY); 871 if (i<0 || (i & MCD_ST_CMDCHECK)) { 872 cd->curr_mode = MCD_MD_UNKNOWN; 873 return -1; 874 } 875 876 cd->status = i; 877 878 if (mcd_setflags(unit,cd) < 0) 879 return -2; 880 return cd->status; 881} 882 883static int 884mcd_setflags(int unit, struct mcd_data *cd) 885{ 886 /* check flags */ 887 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 888 || !(cd->status & MCDDSKIN)) { 889 MCD_TRACE("setflags: sensed DSKCHNG or DOOROPEN or !DSKIN\n"); 890 mcd_soft_reset(unit); 891 return -1; 892 } 893 894 if (cd->status & MCDAUDIOBSY) 895 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 896 else if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) 897 cd->audio_status = CD_AS_PLAY_COMPLETED; 898 return 0; 899} 900 901static int 902mcd_get(int unit, char *buf, int nmax) 903{ 904 int i,k; 905 906 for (i=0; i<nmax; i++) { 907 /* wait for data */ 908 if ((k = mcd_getreply(unit,DELAY_GETREPLY)) < 0) { 909 printf("mcd%d: timeout mcd_get\n",unit); 910 return -1; 911 } 912 buf[i] = k; 913 } 914 return i; 915} 916 917static int 918mcd_send(int unit, int cmd,int nretrys) 919{ 920 int i,k=0; 921 int port = mcd_data[unit].iobase; 922 923/*MCD_TRACE("mcd_send: command = 0x%02x\n",cmd,0,0,0);*/ 924 for (i=0; i<nretrys; i++) { 925 outb(port+mcd_command, cmd); 926 if ((k=mcd_getstat(unit,0)) != -1) 927 break; 928 } 929 if (k == -2) { 930 printf("mcd%d: media changed\n",unit); 931 return -1; 932 } 933 if (i == nretrys) { 934 printf("mcd%d: mcd_send retry cnt exceeded\n",unit); 935 return -1; 936 } 937/*MCD_TRACE("mcd_send: done\n",0,0,0,0);*/ 938 return 0; 939} 940 941static int 942bcd2bin(bcd_t b) 943{ 944 return (b >> 4) * 10 + (b & 15); 945} 946 947static bcd_t 948bin2bcd(int b) 949{ 950 return ((b / 10) << 4) | (b % 10); 951} 952 953static void 954hsg2msf(int hsg, bcd_t *msf) 955{ 956 hsg += 150; 957 M_msf(msf) = bin2bcd(hsg / 4500); 958 hsg %= 4500; 959 S_msf(msf) = bin2bcd(hsg / 75); 960 F_msf(msf) = bin2bcd(hsg % 75); 961} 962 963static int 964msf2hsg(bcd_t *msf) 965{ 966 return (bcd2bin(M_msf(msf)) * 60 + 967 bcd2bin(S_msf(msf))) * 75 + 968 bcd2bin(F_msf(msf)) - 150; 969} 970 971static int 972mcd_volinfo(int unit) 973{ 974 struct mcd_data *cd = mcd_data + unit; 975 976 /* Just return if we already have it */ 977 if (cd->flags & MCDVOLINFO) return 0; 978 979/*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/ 980 981 /* send volume info command */ 982 if (mcd_send(unit,MCD_CMDGETVOLINFO,MCD_RETRYS) < 0) 983 return EIO; 984 985 /* get data */ 986 if (mcd_get(unit,(char*) &cd->volinfo,sizeof(struct mcd_volinfo)) < 0) { 987 printf("mcd%d: mcd_volinfo: error read data\n",unit); 988 return EIO; 989 } 990 991 if (cd->volinfo.trk_low > 0 && 992 cd->volinfo.trk_high >= cd->volinfo.trk_low 993 ) { 994 cd->flags |= MCDVOLINFO; /* volinfo is OK */ 995 return 0; 996 } 997 998 return EINVAL; 999} 1000 1001void 1002mcdintr(unit) 1003 int unit; 1004{ 1005 MCD_TRACE("stray interrupt\n"); 1006} 1007 1008/* state machine to process read requests 1009 * initialize with MCD_S_BEGIN: calculate sizes, and read status 1010 * MCD_S_WAITSTAT: wait for status reply, set mode 1011 * MCD_S_WAITMODE: waits for status reply from set mode, set read command 1012 * MCD_S_WAITREAD: wait for read ready, read data 1013 */ 1014static struct mcd_mbx *mbxsave; 1015 1016static void 1017mcd_doread(int state, struct mcd_mbx *mbxin) 1018{ 1019 struct mcd_mbx *mbx = (state!=MCD_S_BEGIN) ? mbxsave : mbxin; 1020 int unit = mbx->unit; 1021 int port = mbx->port; 1022 int com_port = mbx->port + mcd_command; 1023 int data_port = mbx->port + mcd_rdata; 1024 struct buf *bp = mbx->bp; 1025 struct mcd_data *cd = mcd_data + unit; 1026 1027 int rm,i,k; 1028 struct mcd_read2 rbuf; 1029 int blknum; 1030 caddr_t addr; 1031 1032loop: 1033 switch (state) { 1034 case MCD_S_BEGIN: 1035 mbx = mbxsave = mbxin; 1036 1037 case MCD_S_BEGIN1: 1038retry_status: 1039 /* get status */ 1040 outb(com_port, MCD_CMDGETSTAT); 1041 mbx->count = RDELAY_WAITSTAT; 1042 timeout((timeout_func_t)mcd_doread, 1043 (caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */ 1044 return; 1045 case MCD_S_WAITSTAT: 1046 untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITSTAT); 1047 if (mbx->count-- >= 0) { 1048 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) { 1049 timeout((timeout_func_t)mcd_doread, 1050 (caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */ 1051 return; 1052 } 1053 cd->status = inb(port+mcd_status) & 0xFF; 1054 if (cd->status & MCD_ST_CMDCHECK) 1055 goto retry_status; 1056 if (mcd_setflags(unit,cd) < 0) 1057 goto changed; 1058 MCD_TRACE("got WAITSTAT delay=%d\n", 1059 RDELAY_WAITSTAT-mbx->count); 1060 /* reject, if audio active */ 1061 if (cd->status & MCDAUDIOBSY) { 1062 printf("mcd%d: audio is active\n",unit); 1063 goto readerr; 1064 } 1065 1066retry_mode: 1067 /* to check for raw/cooked mode */ 1068 if (cd->flags & MCDREADRAW) { 1069 rm = MCD_MD_RAW; 1070 mbx->sz = MCDRBLK; 1071 } else { 1072 rm = MCD_MD_COOKED; 1073 mbx->sz = cd->blksize; 1074 } 1075 1076 if (rm == cd->curr_mode) 1077 goto modedone; 1078 1079 mbx->count = RDELAY_WAITMODE; 1080 1081 cd->curr_mode = MCD_MD_UNKNOWN; 1082 mbx->mode = rm; 1083 mcd_put(com_port, MCD_CMDSETMODE); 1084 mcd_put(com_port, rm); 1085 1086 timeout((timeout_func_t)mcd_doread, 1087 (caddr_t)MCD_S_WAITMODE,hz/100); /* XXX */ 1088 return; 1089 } else { 1090 printf("mcd%d: timeout getstatus\n",unit); 1091 goto readerr; 1092 } 1093 1094 case MCD_S_WAITMODE: 1095 untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITMODE); 1096 if (mbx->count-- < 0) { 1097 printf("mcd%d: timeout set mode\n",unit); 1098 goto readerr; 1099 } 1100 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) { 1101 timeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITMODE,hz/100); 1102 return; 1103 } 1104 cd->status = inb(port+mcd_status) & 0xFF; 1105 if (cd->status & MCD_ST_CMDCHECK) { 1106 cd->curr_mode = MCD_MD_UNKNOWN; 1107 goto retry_mode; 1108 } 1109 if (mcd_setflags(unit,cd) < 0) 1110 goto changed; 1111 cd->curr_mode = mbx->mode; 1112 MCD_TRACE("got WAITMODE delay=%d\n", 1113 RDELAY_WAITMODE-mbx->count); 1114modedone: 1115 /* for first block */ 1116 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; 1117 mbx->skip = 0; 1118 1119nextblock: 1120 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) 1121 + mbx->p_offset + mbx->skip/mbx->sz; 1122 1123 MCD_TRACE("mcd_doread: read blknum=%d for bp=%p\n", 1124 blknum, bp); 1125 1126 /* build parameter block */ 1127 hsg2msf(blknum,rbuf.start_msf); 1128retry_read: 1129 /* send the read command */ 1130 disable_intr(); 1131 mcd_put(com_port,cd->read_command); 1132 mcd_put(com_port,rbuf.start_msf[0]); 1133 mcd_put(com_port,rbuf.start_msf[1]); 1134 mcd_put(com_port,rbuf.start_msf[2]); 1135 mcd_put(com_port,0); 1136 mcd_put(com_port,0); 1137 mcd_put(com_port,1); 1138 enable_intr(); 1139 1140 /* Spin briefly (<= 2ms) to avoid missing next block */ 1141 for (i = 0; i < 20; i++) { 1142 k = inb(port+MCD_FLAGS); 1143 if (!(k & MFL_DATA_NOT_AVAIL)) 1144 goto got_it; 1145 DELAY(100); 1146 } 1147 1148 mbx->count = RDELAY_WAITREAD; 1149 timeout((timeout_func_t)mcd_doread, 1150 (caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */ 1151 return; 1152 case MCD_S_WAITREAD: 1153 untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITREAD); 1154 if (mbx->count-- > 0) { 1155 k = inb(port+MCD_FLAGS); 1156 if (!(k & MFL_DATA_NOT_AVAIL)) { /* XXX */ 1157 MCD_TRACE("got data delay=%d\n", 1158 RDELAY_WAITREAD-mbx->count); 1159 got_it: 1160 /* data is ready */ 1161 addr = bp->b_un.b_addr + mbx->skip; 1162 1163 outb(port+mcd_ctl2,0x04); /* XXX */ 1164 for (i=0; i<mbx->sz; i++) 1165 *addr++ = inb(data_port); 1166 outb(port+mcd_ctl2,0x0c); /* XXX */ 1167 1168 k = inb(port+MCD_FLAGS); 1169 /* If we still have some junk, read it too */ 1170 if (!(k & MFL_DATA_NOT_AVAIL)) { 1171 outb(port+mcd_ctl2,0x04); /* XXX */ 1172 (void)inb(data_port); 1173 (void)inb(data_port); 1174 outb(port+mcd_ctl2,0x0c); /* XXX */ 1175 } 1176 1177 if (--mbx->nblk > 0) { 1178 mbx->skip += mbx->sz; 1179 goto nextblock; 1180 } 1181 1182 /* return buffer */ 1183 bp->b_resid = 0; 1184 biodone(bp); 1185 1186 cd->flags &= ~(MCDMBXBSY|MCDREADRAW); 1187 mcd_start(mbx->unit); 1188 return; 1189 } 1190 if (!(k & MFL_STATUS_NOT_AVAIL)) { 1191 cd->status = inb(port+mcd_status) & 0xFF; 1192 if (cd->status & MCD_ST_CMDCHECK) 1193 goto retry_read; 1194 if (mcd_setflags(unit,cd) < 0) 1195 goto changed; 1196 } 1197 timeout((timeout_func_t)mcd_doread, 1198 (caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */ 1199 return; 1200 } else { 1201 printf("mcd%d: timeout read data\n",unit); 1202 goto readerr; 1203 } 1204 } 1205 1206readerr: 1207 if (mbx->retry-- > 0) { 1208 printf("mcd%d: retrying\n",unit); 1209 state = MCD_S_BEGIN1; 1210 goto loop; 1211 } 1212harderr: 1213 /* invalidate the buffer */ 1214 bp->b_flags |= B_ERROR; 1215 bp->b_resid = bp->b_bcount; 1216 biodone(bp); 1217 1218 cd->flags &= ~(MCDMBXBSY|MCDREADRAW); 1219 mcd_start(mbx->unit); 1220 return; 1221 1222changed: 1223 printf("mcd%d: media changed\n", unit); 1224 goto harderr; 1225 1226#ifdef NOTDEF 1227 printf("mcd%d: unit timeout, resetting\n",mbx->unit); 1228 outb(mbx->port+mcd_reset,MCD_CMDRESET); 1229 DELAY(300000); 1230 (void)mcd_getstat(mbx->unit,1); 1231 (void)mcd_getstat(mbx->unit,1); 1232 /*cd->status &= ~MCDDSKCHNG; */ 1233 cd->debug = 1; /* preventive set debug mode */ 1234 1235#endif 1236 1237} 1238 1239static int 1240mcd_lock_door(int unit, int lock) 1241{ 1242 struct mcd_data *cd = mcd_data + unit; 1243 int port = cd->iobase; 1244 1245 outb(port+mcd_command, MCD_CMDLOCKDRV); 1246 outb(port+mcd_command, lock); 1247 if (mcd_getstat(unit,0) == -1) 1248 return EIO; 1249 return 0; 1250} 1251 1252static int 1253mcd_close_tray(int unit) 1254{ 1255 struct mcd_data *cd = mcd_data + unit; 1256 int port = cd->iobase; 1257 int retry, r; 1258 1259 if (mcd_getstat(unit,1) == -1) 1260 return EIO; 1261 if (cd->status & MCDDOOROPEN) { 1262 outb(port+mcd_command, MCD_CMDCLOSETRAY); 1263 for (retry = 0; retry < CLOSE_TRAY_SECS * WAIT_FRAC; retry++) { 1264 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) 1265 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdcls", hz/WAIT_FRAC); 1266 else { 1267 if ((r = mcd_getstat(unit,0)) == -1) 1268 return EIO; 1269 return 0; 1270 } 1271 } 1272 return ENXIO; 1273 } 1274 return 0; 1275} 1276 1277static int 1278mcd_eject(int unit) 1279{ 1280 struct mcd_data *cd = mcd_data + unit; 1281 int port = cd->iobase, r; 1282 1283 if (mcd_getstat(unit,1) == -1) /* detect disk change too */ 1284 return EIO; 1285 if (cd->status & MCDDOOROPEN) 1286 return mcd_close_tray(unit); 1287 if ((r = mcd_stop(unit)) == EIO) 1288 return r; 1289 outb(port+mcd_command, MCD_CMDEJECTDISK); 1290 if (mcd_getstat(unit,0) == -1) 1291 return EIO; 1292 return 0; 1293} 1294 1295static int 1296mcd_hard_reset(int unit) 1297{ 1298 struct mcd_data *cd = mcd_data + unit; 1299 int port = cd->iobase; 1300 1301 outb(port+mcd_reset,MCD_CMDRESET); 1302 cd->curr_mode = MCD_MD_UNKNOWN; 1303 cd->audio_status = CD_AS_AUDIO_INVALID; 1304 return 0; 1305} 1306 1307static void 1308mcd_soft_reset(int unit) 1309{ 1310 struct mcd_data *cd = mcd_data + unit; 1311 int i; 1312 1313 cd->openflags = 0; 1314 cd->flags &= (MCDINIT|MCDPROBING|MCDNEWMODEL); 1315 cd->curr_mode = MCD_MD_UNKNOWN; 1316 for (i=0; i<MAXPARTITIONS; i++) cd->partflags[i] = 0; 1317 cd->audio_status = CD_AS_AUDIO_INVALID; 1318} 1319 1320static int 1321mcd_setmode(int unit, int mode) 1322{ 1323 struct mcd_data *cd = mcd_data + unit; 1324 int port = cd->iobase; 1325 int retry, st; 1326 1327 if (cd->curr_mode == mode) 1328 return 0; 1329 if (cd->debug) 1330 printf("mcd%d: setting mode to %d\n", unit, mode); 1331 for(retry=0; retry<MCD_RETRYS; retry++) 1332 { 1333 cd->curr_mode = MCD_MD_UNKNOWN; 1334 outb(port+mcd_command, MCD_CMDSETMODE); 1335 outb(port+mcd_command, mode); 1336 if ((st = mcd_getstat(unit, 0)) >= 0) { 1337 cd->curr_mode = mode; 1338 return 0; 1339 } 1340 if (st == -2) { 1341 printf("mcd%d: media changed\n", unit); 1342 break; 1343 } 1344 } 1345 1346 return -1; 1347} 1348 1349static int 1350mcd_toc_header(int unit, struct ioc_toc_header *th) 1351{ 1352 struct mcd_data *cd = mcd_data + unit; 1353 int r; 1354 1355 if ((r = mcd_volinfo(unit)) != 0) 1356 return r; 1357 1358 th->len = msf2hsg(cd->volinfo.vol_msf); 1359 th->starting_track = bcd2bin(cd->volinfo.trk_low); 1360 th->ending_track = bcd2bin(cd->volinfo.trk_high); 1361 1362 return 0; 1363} 1364 1365static int 1366mcd_read_toc(int unit) 1367{ 1368 struct mcd_data *cd = mcd_data + unit; 1369 struct ioc_toc_header th; 1370 struct mcd_qchninfo q; 1371 int rc, trk, idx, retry; 1372 1373 /* Only read TOC if needed */ 1374 if (cd->flags & MCDTOC) 1375 return 0; 1376 1377 if (cd->debug) 1378 printf("mcd%d: reading toc header\n", unit); 1379 1380 if ((rc = mcd_toc_header(unit, &th)) != 0) 1381 return rc; 1382 1383 if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) 1384 return EIO; 1385 1386 if (mcd_setmode(unit, MCD_MD_TOC) != 0) 1387 return EIO; 1388 1389 if (cd->debug) 1390 printf("mcd%d: get_toc reading qchannel info\n",unit); 1391 1392 for(trk=th.starting_track; trk<=th.ending_track; trk++) 1393 cd->toc[trk].idx_no = 0; 1394 trk = th.ending_track - th.starting_track + 1; 1395 for(retry=0; retry<600 && trk>0; retry++) 1396 { 1397 if (mcd_getqchan(unit, &q) < 0) break; 1398 idx = bcd2bin(q.idx_no); 1399 if (idx>=th.starting_track && idx<=th.ending_track && q.trk_no==0) { 1400 if (cd->toc[idx].idx_no == 0) { 1401 cd->toc[idx] = q; 1402 trk--; 1403 } 1404 } 1405 } 1406 1407 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1408 return EIO; 1409 1410 if (trk != 0) 1411 return ENXIO; 1412 1413 /* add a fake last+1 */ 1414 idx = th.ending_track + 1; 1415 cd->toc[idx].ctrl_adr = cd->toc[idx-1].ctrl_adr; 1416 cd->toc[idx].trk_no = 0; 1417 cd->toc[idx].idx_no = 0xAA; 1418 cd->toc[idx].hd_pos_msf[0] = cd->volinfo.vol_msf[0]; 1419 cd->toc[idx].hd_pos_msf[1] = cd->volinfo.vol_msf[1]; 1420 cd->toc[idx].hd_pos_msf[2] = cd->volinfo.vol_msf[2]; 1421 1422 if (cd->debug) 1423 { int i; 1424 for (i = th.starting_track; i <= idx; i++) 1425 printf("mcd%d: trk %d idx %d pos %d %d %d\n", 1426 unit, i, 1427 cd->toc[i].idx_no, 1428 bcd2bin(cd->toc[i].hd_pos_msf[0]), 1429 bcd2bin(cd->toc[i].hd_pos_msf[1]), 1430 bcd2bin(cd->toc[i].hd_pos_msf[2])); 1431 } 1432 1433 cd->flags |= MCDTOC; 1434 1435 return 0; 1436} 1437 1438static int 1439mcd_toc_entrys(int unit, struct ioc_read_toc_entry *te) 1440{ 1441 struct mcd_data *cd = mcd_data + unit; 1442 struct cd_toc_entry entries[MCD_MAXTOCS]; 1443 struct ioc_toc_header th; 1444 int rc, i, len = te->data_len; 1445 1446 /* Make sure we have a valid toc */ 1447 if ((rc=mcd_read_toc(unit)) != 0) 1448 return rc; 1449 1450 /* find the toc to copy*/ 1451 i = te->starting_track; 1452 if (i == MCD_LASTPLUS1) 1453 i = bcd2bin(cd->volinfo.trk_high) + 1; 1454 1455 /* verify starting track */ 1456 if (i < bcd2bin(cd->volinfo.trk_low) || 1457 i > bcd2bin(cd->volinfo.trk_high)+1) { 1458 return EINVAL; 1459 } 1460 1461 /* do we have room */ 1462 if ( len > sizeof(entries) 1463 || len < sizeof(struct cd_toc_entry) 1464 || (len % sizeof(struct cd_toc_entry)) != 0 1465 ) 1466 return EINVAL; 1467 1468 /* Copy the toc header */ 1469 if ((rc = mcd_toc_header(unit, &th)) != 0) 1470 return rc; 1471 1472 do { 1473 /* copy the toc data */ 1474 entries[i-1].control = cd->toc[i].ctrl_adr; 1475 entries[i-1].addr_type = te->address_format; 1476 entries[i-1].track = i; 1477 if (te->address_format == CD_MSF_FORMAT) { 1478 entries[i-1].addr.msf.unused = 0; 1479 entries[i-1].addr.msf.minute = bcd2bin(cd->toc[i].hd_pos_msf[0]); 1480 entries[i-1].addr.msf.second = bcd2bin(cd->toc[i].hd_pos_msf[1]); 1481 entries[i-1].addr.msf.frame = bcd2bin(cd->toc[i].hd_pos_msf[2]); 1482 } 1483 len -= sizeof(struct cd_toc_entry); 1484 i++; 1485 } 1486 while (len > 0 && i <= th.ending_track + 2); 1487 1488 /* copy the data back */ 1489 if (copyout(entries, te->data, (i - 1) * sizeof(struct cd_toc_entry)) != 0) 1490 return EFAULT; 1491 1492 return 0; 1493} 1494 1495static int 1496mcd_stop(int unit) 1497{ 1498 struct mcd_data *cd = mcd_data + unit; 1499 1500 /* Verify current status */ 1501 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS && 1502 cd->audio_status != CD_AS_PLAY_PAUSED) { 1503 if (cd->debug) 1504 printf("mcd%d: stop attempted when not playing\n", unit); 1505 return EINVAL; 1506 } 1507 if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) 1508 if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) 1509 return EIO; 1510 cd->audio_status = CD_AS_PLAY_COMPLETED; 1511 return 0; 1512} 1513 1514static int 1515mcd_getqchan(int unit, struct mcd_qchninfo *q) 1516{ 1517 struct mcd_data *cd = mcd_data + unit; 1518 1519 if (mcd_send(unit, MCD_CMDGETQCHN, MCD_RETRYS) < 0) 1520 return -1; 1521 if (mcd_get(unit, (char *) q, sizeof(struct mcd_qchninfo)) < 0) 1522 return -1; 1523 if (cd->debug) { 1524 printf("mcd%d: getqchan ctrl_adr=0x%x trk=%d ind=%d ttm=%d:%d.%d dtm=%d:%d.%d\n", 1525 unit, 1526 q->ctrl_adr, bcd2bin(q->trk_no), bcd2bin(q->idx_no), 1527 bcd2bin(q->trk_size_msf[0]), bcd2bin(q->trk_size_msf[1]), 1528 bcd2bin(q->trk_size_msf[2]), 1529 bcd2bin(q->hd_pos_msf[0]), bcd2bin(q->hd_pos_msf[1]), 1530 bcd2bin(q->hd_pos_msf[2])); 1531 } 1532 return 0; 1533} 1534 1535static int 1536mcd_subchan(int unit, struct ioc_read_subchannel *sc) 1537{ 1538 struct mcd_data *cd = mcd_data + unit; 1539 struct mcd_qchninfo q; 1540 struct cd_sub_channel_info data; 1541 1542 if (cd->debug) 1543 printf("mcd%d: subchan af=%d, df=%d\n", unit, 1544 sc->address_format, 1545 sc->data_format); 1546 1547 if (sc->address_format != CD_MSF_FORMAT && 1548 sc->address_format != CD_LBA_FORMAT) 1549 return EINVAL; 1550 1551 if (sc->data_format != CD_CURRENT_POSITION) 1552 return EINVAL; 1553 1554 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1555 return EIO; 1556 1557 if (mcd_getqchan(unit, &q) < 0) 1558 return EIO; 1559 1560 data.header.audio_status = cd->audio_status; 1561 data.what.position.data_format = CD_CURRENT_POSITION; 1562 data.what.position.addr_type = q.ctrl_adr; 1563 data.what.position.control = q.ctrl_adr >> 4; 1564 data.what.position.track_number = bcd2bin(q.trk_no); 1565 data.what.position.index_number = bcd2bin(q.idx_no); 1566 if (sc->address_format == CD_MSF_FORMAT) { 1567 data.what.position.reladdr.msf.unused = 0; 1568 data.what.position.reladdr.msf.minute = bcd2bin(q.trk_size_msf[0]); 1569 data.what.position.reladdr.msf.second = bcd2bin(q.trk_size_msf[1]); 1570 data.what.position.reladdr.msf.frame = bcd2bin(q.trk_size_msf[2]); 1571 data.what.position.absaddr.msf.unused = 0; 1572 data.what.position.absaddr.msf.minute = bcd2bin(q.hd_pos_msf[0]); 1573 data.what.position.absaddr.msf.second = bcd2bin(q.hd_pos_msf[1]); 1574 data.what.position.absaddr.msf.frame = bcd2bin(q.hd_pos_msf[2]); 1575 } else if (sc->address_format == CD_LBA_FORMAT) { 1576 data.what.position.reladdr.lba = msf2hsg(q.trk_size_msf); 1577 data.what.position.absaddr.lba = msf2hsg(q.hd_pos_msf); 1578 } 1579 1580 if (copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len))!=0) 1581 return EFAULT; 1582 return 0; 1583} 1584 1585static int 1586mcd_playmsf(int unit, struct ioc_play_msf *pt) 1587{ 1588 struct mcd_read2 pb; 1589 1590 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1591 return EIO; 1592 1593 pb.start_msf[0] = bin2bcd(pt->start_m); 1594 pb.start_msf[1] = bin2bcd(pt->start_s); 1595 pb.start_msf[2] = bin2bcd(pt->start_f); 1596 pb.end_msf[0] = bin2bcd(pt->end_m); 1597 pb.end_msf[1] = bin2bcd(pt->end_s); 1598 pb.end_msf[2] = bin2bcd(pt->end_f); 1599 1600 return mcd_play(unit, &pb); 1601} 1602 1603static int 1604mcd_playtracks(int unit, struct ioc_play_track *pt) 1605{ 1606 struct mcd_data *cd = mcd_data + unit; 1607 struct mcd_read2 pb; 1608 int a = pt->start_track; 1609 int z = pt->end_track; 1610 int rc, i; 1611 1612 if ((rc = mcd_read_toc(unit)) != 0) 1613 return rc; 1614 1615 if (cd->debug) 1616 printf("mcd%d: playtracks from %d:%d to %d:%d\n", unit, 1617 a, pt->start_index, z, pt->end_index); 1618 1619 if ( a < bcd2bin(cd->volinfo.trk_low) 1620 || a > bcd2bin(cd->volinfo.trk_high) 1621 || a > z 1622 || z < bcd2bin(cd->volinfo.trk_low) 1623 || z > bcd2bin(cd->volinfo.trk_high)) 1624 return EINVAL; 1625 1626 for (i = 0; i < 3; i++) { 1627 pb.start_msf[i] = cd->toc[a].hd_pos_msf[i]; 1628 pb.end_msf[i] = cd->toc[z+1].hd_pos_msf[i]; 1629 } 1630 1631 return mcd_play(unit, &pb); 1632} 1633 1634static int 1635mcd_play(int unit, struct mcd_read2 *pb) 1636{ 1637 struct mcd_data *cd = mcd_data + unit; 1638 int com_port = cd->iobase + mcd_command; 1639 int retry, st = -1, status; 1640 1641 cd->lastpb = *pb; 1642 for(retry=0; retry<MCD_RETRYS; retry++) { 1643 1644 disable_intr(); 1645 outb(com_port, MCD_CMDSINGLESPEEDREAD); 1646 outb(com_port, pb->start_msf[0]); 1647 outb(com_port, pb->start_msf[1]); 1648 outb(com_port, pb->start_msf[2]); 1649 outb(com_port, pb->end_msf[0]); 1650 outb(com_port, pb->end_msf[1]); 1651 outb(com_port, pb->end_msf[2]); 1652 enable_intr(); 1653 1654 status=mcd_getstat(unit, 0); 1655 if (status == -1) 1656 continue; 1657 else if (status != -2) 1658 st = 0; 1659 break; 1660 } 1661 1662 if (status == -2) { 1663 printf("mcd%d: media changed\n", unit); 1664 return ENXIO; 1665 } 1666 if (cd->debug) 1667 printf("mcd%d: mcd_play retry=%d, status=0x%02x\n", unit, retry, status); 1668 if (st < 0) 1669 return ENXIO; 1670 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 1671 return 0; 1672} 1673 1674static int 1675mcd_pause(int unit) 1676{ 1677 struct mcd_data *cd = mcd_data + unit; 1678 struct mcd_qchninfo q; 1679 int rc; 1680 1681 /* Verify current status */ 1682 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) { 1683 if (cd->debug) 1684 printf("mcd%d: pause attempted when not playing\n", unit); 1685 return EINVAL; 1686 } 1687 1688 /* Get the current position */ 1689 if (mcd_getqchan(unit, &q) < 0) 1690 return EIO; 1691 1692 /* Copy it into lastpb */ 1693 cd->lastpb.start_msf[0] = q.hd_pos_msf[0]; 1694 cd->lastpb.start_msf[1] = q.hd_pos_msf[1]; 1695 cd->lastpb.start_msf[2] = q.hd_pos_msf[2]; 1696 1697 /* Stop playing */ 1698 if ((rc=mcd_stop(unit)) != 0) 1699 return rc; 1700 1701 /* Set the proper status and exit */ 1702 cd->audio_status = CD_AS_PLAY_PAUSED; 1703 return 0; 1704} 1705 1706static int 1707mcd_resume(int unit) 1708{ 1709 struct mcd_data *cd = mcd_data + unit; 1710 1711 if (cd->audio_status != CD_AS_PLAY_PAUSED) 1712 return EINVAL; 1713 return mcd_play(unit, &cd->lastpb); 1714} 1715 1716 1717static mcd_devsw_installed = 0; 1718 1719static void mcd_drvinit(void *unused) 1720{ 1721 dev_t dev; 1722 1723 if( ! mcd_devsw_installed ) { 1724 dev = makedev(CDEV_MAJOR,0); 1725 cdevsw_add(&dev,&mcd_cdevsw,NULL); 1726 dev = makedev(BDEV_MAJOR,0); 1727 bdevsw_add(&dev,&mcd_bdevsw,NULL); 1728 mcd_devsw_installed = 1; 1729 } 1730} 1731 1732SYSINIT(mcddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,mcd_drvinit,NULL) 1733 1734 1735#endif /* NMCD > 0 */ 1736