Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/i386/isa/mcd.c
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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 * $FreeBSD$ 44 */ 45 static const char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore"; 46 47 #include "mcd.h" 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/conf.h> 51 #include <sys/fcntl.h> 52 #include <sys/buf.h> 53 #include <sys/cdio.h> 54 #include <sys/disklabel.h> 55 #include <sys/kernel.h> 56 57 #include <machine/clock.h> 58 59 #include <i386/isa/isa_device.h> 60 #include <i386/isa/mcdreg.h> 61 62 #define MCD_TRACE(format, args...) \ 63 { \ 64 if (mcd_data[unit].debug) { \ 65 printf("mcd%d: status=0x%02x: ", \ 66 unit, mcd_data[unit].status); \ 67 printf(format, ## args); \ 68 } \ 69 } 70 71 #define mcd_part(dev) ((minor(dev)) & 7) 72 #define mcd_unit(dev) (((minor(dev)) & 0x38) >> 3) 73 #define mcd_phys(dev) (((minor(dev)) & 0x40) >> 6) 74 #define RAW_PART 2 75 76 /* flags */ 77 #define MCDVALID 0x0001 /* parameters loaded */ 78 #define MCDINIT 0x0002 /* device is init'd */ 79 #define MCDNEWMODEL 0x0004 /* device is new model */ 80 #define MCDLABEL 0x0008 /* label is read */ 81 #define MCDPROBING 0x0010 /* probing */ 82 #define MCDREADRAW 0x0020 /* read raw mode (2352 bytes) */ 83 #define MCDVOLINFO 0x0040 /* already read volinfo */ 84 #define MCDTOC 0x0080 /* already read toc */ 85 #define MCDMBXBSY 0x0100 /* local mbx is busy */ 86 87 /* status */ 88 #define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */ 89 #define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */ 90 #define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */ 91 #define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */ 92 93 /* These are apparently the different states a mitsumi can get up to */ 94 #define MCDCDABSENT 0x0030 95 #define MCDCDPRESENT 0x0020 96 #define MCDSCLOSED 0x0080 97 #define MCDSOPEN 0x00a0 98 99 #define MCD_MD_UNKNOWN (-1) 100 101 /* toc */ 102 #define MCD_MAXTOCS 104 /* from the Linux driver */ 103 #define MCD_LASTPLUS1 170 /* special toc entry */ 104 105 #define MCD_TYPE_UNKNOWN 0 106 #define MCD_TYPE_LU002S 1 107 #define MCD_TYPE_LU005S 2 108 #define MCD_TYPE_LU006S 3 109 #define MCD_TYPE_FX001 4 110 #define MCD_TYPE_FX001D 5 111 112 struct mcd_mbx { 113 short unit; 114 short port; 115 short retry; 116 short nblk; 117 int sz; 118 u_long skip; 119 struct buf *bp; 120 int p_offset; 121 short count; 122 short mode; 123 }; 124 125 static struct mcd_data { 126 short type; 127 char *name; 128 short config; 129 short flags; 130 u_char read_command; 131 short status; 132 int blksize; 133 u_long disksize; 134 int iobase; 135 struct disklabel dlabel; 136 int partflags[MAXPARTITIONS]; 137 int openflags; 138 struct mcd_volinfo volinfo; 139 struct mcd_qchninfo toc[MCD_MAXTOCS]; 140 short audio_status; 141 short curr_mode; 142 struct mcd_read2 lastpb; 143 short debug; 144 struct buf_queue_head head; /* head of buf queue */ 145 struct mcd_mbx mbx; 146 } mcd_data[NMCD]; 147 148 /* reader state machine */ 149 #define MCD_S_BEGIN 0 150 #define MCD_S_BEGIN1 1 151 #define MCD_S_WAITSTAT 2 152 #define MCD_S_WAITMODE 3 153 #define MCD_S_WAITREAD 4 154 155 /* prototypes */ 156 static void mcd_start(int unit); 157 static int mcd_getdisklabel(int unit); 158 #ifdef NOTYET 159 static void mcd_configure(struct mcd_data *cd); 160 #endif 161 static int mcd_get(int unit, char *buf, int nmax); 162 static int mcd_setflags(int unit,struct mcd_data *cd); 163 static int mcd_getstat(int unit,int sflg); 164 static int mcd_send(int unit, int cmd,int nretrys); 165 static void hsg2msf(int hsg, bcd_t *msf); 166 static int msf2hsg(bcd_t *msf, int relative); 167 static int mcd_volinfo(int unit); 168 static ointhand2_t mcdintr; 169 static int mcd_waitrdy(int port,int dly); 170 static timeout_t mcd_timeout; 171 static void mcd_doread(int state, struct mcd_mbx *mbxin); 172 static void mcd_soft_reset(int unit); 173 static int mcd_hard_reset(int unit); 174 static int mcd_setmode(int unit, int mode); 175 static int mcd_getqchan(int unit, struct mcd_qchninfo *q); 176 static int mcd_subchan(int unit, struct ioc_read_subchannel *sc); 177 static int mcd_toc_header(int unit, struct ioc_toc_header *th); 178 static int mcd_read_toc(int unit); 179 static int mcd_toc_entrys(int unit, struct ioc_read_toc_entry *te); 180 #if 0 181 static int mcd_toc_entry(int unit, struct ioc_read_toc_single_entry *te); 182 #endif 183 static int mcd_stop(int unit); 184 static int mcd_eject(int unit); 185 static int mcd_inject(int unit); 186 static int mcd_playtracks(int unit, struct ioc_play_track *pt); 187 static int mcd_play(int unit, struct mcd_read2 *pb); 188 static int mcd_playmsf(int unit, struct ioc_play_msf *pt); 189 static int mcd_playblocks(int unit, struct ioc_play_blocks *); 190 static int mcd_pause(int unit); 191 static int mcd_resume(int unit); 192 static int mcd_lock_door(int unit, int lock); 193 static int mcd_close_tray(int unit); 194 195 static int mcd_probe(struct isa_device *dev); 196 static int mcd_attach(struct isa_device *dev); 197 struct isa_driver mcddriver = { mcd_probe, mcd_attach, "mcd" }; 198 199 static d_open_t mcdopen; 200 static d_close_t mcdclose; 201 static d_ioctl_t mcdioctl; 202 static d_psize_t mcdsize; 203 static d_strategy_t mcdstrategy; 204 205 #define CDEV_MAJOR 29 206 #define BDEV_MAJOR 7 207 208 209 210 static struct cdevsw mcd_cdevsw = { 211 /* open */ mcdopen, 212 /* close */ mcdclose, 213 /* read */ physread, 214 /* write */ nowrite, 215 /* ioctl */ mcdioctl, 216 /* poll */ nopoll, 217 /* mmap */ nommap, 218 /* strategy */ mcdstrategy, 219 /* name */ "mcd", 220 /* maj */ CDEV_MAJOR, 221 /* dump */ nodump, 222 /* psize */ nopsize, 223 /* flags */ D_DISK, 224 /* bmaj */ BDEV_MAJOR 225 }; 226 227 #define mcd_put(port,byte) outb(port,byte) 228 229 #define MCD_RETRYS 5 230 #define MCD_RDRETRYS 8 231 232 #define CLOSE_TRAY_SECS 8 233 #define DISK_SENSE_SECS 3 234 #define WAIT_FRAC 4 235 236 /* several delays */ 237 #define RDELAY_WAITSTAT 300 238 #define RDELAY_WAITMODE 300 239 #define RDELAY_WAITREAD 800 240 241 #define MIN_DELAY 15 242 #define DELAY_GETREPLY 5000000 243 244 int mcd_attach(struct isa_device *dev) 245 { 246 int unit = dev->id_unit; 247 struct mcd_data *cd = mcd_data + unit; 248 249 dev->id_ointr = mcdintr; 250 cd->iobase = dev->id_iobase; 251 cd->flags |= MCDINIT; 252 mcd_soft_reset(unit); 253 bufq_init(&cd->head); 254 255 #ifdef NOTYET 256 /* wire controller for interrupts and dma */ 257 mcd_configure(cd); 258 #endif 259 /* name filled in probe */ 260 make_dev(&mcd_cdevsw, dkmakeminor(unit, 0, 0), 261 UID_ROOT, GID_OPERATOR, 0640, "rmcd%da", unit); 262 make_dev(&mcd_cdevsw, dkmakeminor(unit, 0, RAW_PART), 263 UID_ROOT, GID_OPERATOR, 0640, "rmcd%dc", unit); 264 make_dev(&mcd_cdevsw, dkmakeminor(unit, 0, 0), 265 UID_ROOT, GID_OPERATOR, 0640, "mcd%da", unit); 266 make_dev(&mcd_cdevsw, dkmakeminor(unit, 0, RAW_PART), 267 UID_ROOT, GID_OPERATOR, 0640, "mcd%dc", unit); 268 return 1; 269 } 270 271 int mcdopen(dev_t dev, int flags, int fmt, struct proc *p) 272 { 273 int unit,part,phys,r,retry; 274 struct mcd_data *cd; 275 276 unit = mcd_unit(dev); 277 if (unit >= NMCD) 278 return ENXIO; 279 280 cd = mcd_data + unit; 281 part = mcd_part(dev); 282 phys = mcd_phys(dev); 283 284 /* not initialized*/ 285 if (!(cd->flags & MCDINIT)) 286 return ENXIO; 287 288 /* invalidated in the meantime? mark all open part's invalid */ 289 if (!(cd->flags & MCDVALID) && cd->openflags) 290 return ENXIO; 291 292 if (mcd_getstat(unit,1) == -1) 293 return EIO; 294 295 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 296 || !(cd->status & MCDDSKIN)) 297 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) { 298 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdsn1", hz/WAIT_FRAC); 299 if ((r = mcd_getstat(unit,1)) == -1) 300 return EIO; 301 if (r != -2) 302 break; 303 } 304 305 if (( (cd->status & (MCDDOOROPEN|MCDDSKCHNG)) 306 || !(cd->status & MCDDSKIN) 307 ) 308 && major(dev) == CDEV_MAJOR && part == RAW_PART 309 ) { 310 cd->openflags |= (1<<part); 311 if (phys) 312 cd->partflags[part] |= MCDREADRAW; 313 return 0; 314 } 315 if (cd->status & MCDDOOROPEN) { 316 printf("mcd%d: door is open\n", unit); 317 return ENXIO; 318 } 319 if (!(cd->status & MCDDSKIN)) { 320 printf("mcd%d: no CD inside\n", unit); 321 return ENXIO; 322 } 323 if (cd->status & MCDDSKCHNG) { 324 printf("mcd%d: CD not sensed\n", unit); 325 return ENXIO; 326 } 327 328 if (mcdsize(dev) < 0) { 329 if (major(dev) == CDEV_MAJOR && part == RAW_PART) { 330 cd->openflags |= (1<<part); 331 if (phys) 332 cd->partflags[part] |= MCDREADRAW; 333 return 0; 334 } 335 printf("mcd%d: failed to get disk size\n",unit); 336 return ENXIO; 337 } else 338 cd->flags |= MCDVALID; 339 340 /* XXX get a default disklabel */ 341 mcd_getdisklabel(unit); 342 343 MCD_TRACE("open: partition=%d, disksize = %ld, blksize=%d\n", 344 part, cd->disksize, cd->blksize); 345 346 dev->si_bsize_phys = cd->blksize; 347 348 if (part == RAW_PART || 349 (part < cd->dlabel.d_npartitions && 350 cd->dlabel.d_partitions[part].p_fstype != FS_UNUSED)) { 351 cd->openflags |= (1<<part); 352 if (part == RAW_PART && phys) 353 cd->partflags[part] |= MCDREADRAW; 354 (void) mcd_lock_door(unit, MCD_LK_LOCK); 355 if (!(cd->flags & MCDVALID)) 356 return ENXIO; 357 return 0; 358 } 359 360 return ENXIO; 361 } 362 363 int mcdclose(dev_t dev, int flags, int fmt, struct proc *p) 364 { 365 int unit,part; 366 struct mcd_data *cd; 367 368 unit = mcd_unit(dev); 369 if (unit >= NMCD) 370 return ENXIO; 371 372 cd = mcd_data + unit; 373 part = mcd_part(dev); 374 375 if (!(cd->flags & MCDINIT) || !(cd->openflags & (1<<part))) 376 return ENXIO; 377 378 MCD_TRACE("close: partition=%d\n", part); 379 380 (void) mcd_lock_door(unit, MCD_LK_UNLOCK); 381 cd->openflags &= ~(1<<part); 382 cd->partflags[part] &= ~MCDREADRAW; 383 384 return 0; 385 } 386 387 void 388 mcdstrategy(struct buf *bp) 389 { 390 struct mcd_data *cd; 391 int s; 392 393 int unit = mcd_unit(bp->b_dev); 394 395 cd = mcd_data + unit; 396 397 /* test validity */ 398 /*MCD_TRACE("strategy: buf=0x%lx, unit=%ld, block#=%ld bcount=%ld\n", 399 bp,unit,bp->b_blkno,bp->b_bcount);*/ 400 if (unit >= NMCD || bp->b_blkno < 0) { 401 printf("mcdstrategy: unit = %d, blkno = %ld, bcount = %ld\n", 402 unit, (long)bp->b_blkno, bp->b_bcount); 403 printf("mcd: mcdstratregy failure"); 404 bp->b_error = EINVAL; 405 bp->b_flags |= B_ERROR; 406 goto bad; 407 } 408 409 /* if device invalidated (e.g. media change, door open), error */ 410 if (!(cd->flags & MCDVALID)) { 411 MCD_TRACE("strategy: drive not valid\n"); 412 bp->b_error = EIO; 413 goto bad; 414 } 415 416 /* read only */ 417 if (!(bp->b_flags & B_READ)) { 418 bp->b_error = EROFS; 419 goto bad; 420 } 421 422 /* no data to read */ 423 if (bp->b_bcount == 0) 424 goto done; 425 426 /* for non raw access, check partition limits */ 427 if (mcd_part(bp->b_dev) != RAW_PART) { 428 if (!(cd->flags & MCDLABEL)) { 429 bp->b_error = EIO; 430 goto bad; 431 } 432 /* adjust transfer if necessary */ 433 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) { 434 goto done; 435 } 436 } else { 437 bp->b_pblkno = bp->b_blkno; 438 bp->b_resid = 0; 439 } 440 441 /* queue it */ 442 s = splbio(); 443 bufqdisksort(&cd->head, bp); 444 splx(s); 445 446 /* now check whether we can perform processing */ 447 mcd_start(unit); 448 return; 449 450 bad: 451 bp->b_flags |= B_ERROR; 452 done: 453 bp->b_resid = bp->b_bcount; 454 biodone(bp); 455 return; 456 } 457 458 static void mcd_start(int unit) 459 { 460 struct mcd_data *cd = mcd_data + unit; 461 struct partition *p; 462 struct buf *bp; 463 int s = splbio(); 464 465 if (cd->flags & MCDMBXBSY) { 466 splx(s); 467 return; 468 } 469 470 bp = bufq_first(&cd->head); 471 if (bp != 0) { 472 /* block found to process, dequeue */ 473 /*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/ 474 bufq_remove(&cd->head, bp); 475 splx(s); 476 } else { 477 /* nothing to do */ 478 splx(s); 479 return; 480 } 481 482 /* changed media? */ 483 if (!(cd->flags & MCDVALID)) { 484 MCD_TRACE("mcd_start: drive not valid\n"); 485 return; 486 } 487 488 p = cd->dlabel.d_partitions + mcd_part(bp->b_dev); 489 490 cd->flags |= MCDMBXBSY; 491 if (cd->partflags[mcd_part(bp->b_dev)] & MCDREADRAW) 492 cd->flags |= MCDREADRAW; 493 cd->mbx.unit = unit; 494 cd->mbx.port = cd->iobase; 495 cd->mbx.retry = MCD_RETRYS; 496 cd->mbx.bp = bp; 497 cd->mbx.p_offset = p->p_offset; 498 499 /* calling the read routine */ 500 mcd_doread(MCD_S_BEGIN,&(cd->mbx)); 501 /* triggers mcd_start, when successful finished */ 502 return; 503 } 504 505 int mcdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct proc *p) 506 { 507 struct mcd_data *cd; 508 int unit,part,retry,r; 509 510 unit = mcd_unit(dev); 511 part = mcd_part(dev); 512 cd = mcd_data + unit; 513 514 if (mcd_getstat(unit, 1) == -1) /* detect disk change too */ 515 return EIO; 516 MCD_TRACE("ioctl called 0x%lx\n", cmd); 517 518 switch (cmd) { 519 case CDIOCSETPATCH: 520 case CDIOCGETVOL: 521 case CDIOCSETVOL: 522 case CDIOCSETMONO: 523 case CDIOCSETSTERIO: 524 case CDIOCSETMUTE: 525 case CDIOCSETLEFT: 526 case CDIOCSETRIGHT: 527 return EINVAL; 528 case CDIOCEJECT: 529 return mcd_eject(unit); 530 case CDIOCSETDEBUG: 531 cd->debug = 1; 532 return 0; 533 case CDIOCCLRDEBUG: 534 cd->debug = 0; 535 return 0; 536 case CDIOCRESET: 537 return mcd_hard_reset(unit); 538 case CDIOCALLOW: 539 return mcd_lock_door(unit, MCD_LK_UNLOCK); 540 case CDIOCPREVENT: 541 return mcd_lock_door(unit, MCD_LK_LOCK); 542 case CDIOCCLOSE: 543 return mcd_inject(unit); 544 } 545 546 if (!(cd->flags & MCDVALID)) { 547 if ( major(dev) != CDEV_MAJOR 548 || part != RAW_PART 549 || !(cd->openflags & (1<<RAW_PART)) 550 ) 551 return ENXIO; 552 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 553 || !(cd->status & MCDDSKIN)) 554 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) { 555 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdsn2", hz/WAIT_FRAC); 556 if ((r = mcd_getstat(unit,1)) == -1) 557 return EIO; 558 if (r != -2) 559 break; 560 } 561 if ( (cd->status & (MCDDOOROPEN|MCDDSKCHNG)) 562 || !(cd->status & MCDDSKIN) 563 || mcdsize(dev) < 0 564 ) 565 return ENXIO; 566 cd->flags |= MCDVALID; 567 mcd_getdisklabel(unit); 568 if (mcd_phys(dev)) 569 cd->partflags[part] |= MCDREADRAW; 570 (void) mcd_lock_door(unit, MCD_LK_LOCK); 571 if (!(cd->flags & MCDVALID)) 572 return ENXIO; 573 } 574 575 switch (cmd) { 576 case DIOCGDINFO: 577 *(struct disklabel *) addr = cd->dlabel; 578 return 0; 579 case DIOCGPART: 580 ((struct partinfo *) addr)->disklab = &cd->dlabel; 581 ((struct partinfo *) addr)->part = 582 &cd->dlabel.d_partitions[mcd_part(dev)]; 583 return 0; 584 585 /* 586 * a bit silly, but someone might want to test something on a 587 * section of cdrom. 588 */ 589 case DIOCWDINFO: 590 case DIOCSDINFO: 591 if ((flags & FWRITE) == 0) 592 return EBADF; 593 else { 594 return setdisklabel(&cd->dlabel, 595 (struct disklabel *) addr, 596 0); 597 } 598 case DIOCWLABEL: 599 return EBADF; 600 case CDIOCPLAYTRACKS: 601 return mcd_playtracks(unit, (struct ioc_play_track *) addr); 602 case CDIOCPLAYBLOCKS: 603 return mcd_playblocks(unit, (struct ioc_play_blocks *) addr); 604 case CDIOCPLAYMSF: 605 return mcd_playmsf(unit, (struct ioc_play_msf *) addr); 606 case CDIOCREADSUBCHANNEL: 607 return mcd_subchan(unit, (struct ioc_read_subchannel *) addr); 608 case CDIOREADTOCHEADER: 609 return mcd_toc_header(unit, (struct ioc_toc_header *) addr); 610 case CDIOREADTOCENTRYS: 611 return mcd_toc_entrys(unit, (struct ioc_read_toc_entry *) addr); 612 case CDIOCRESUME: 613 return mcd_resume(unit); 614 case CDIOCPAUSE: 615 return mcd_pause(unit); 616 case CDIOCSTART: 617 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 618 return EIO; 619 return 0; 620 case CDIOCSTOP: 621 return mcd_stop(unit); 622 default: 623 return ENOTTY; 624 } 625 /*NOTREACHED*/ 626 } 627 628 /* this could have been taken from scsi/cd.c, but it is not clear 629 * whether the scsi cd driver is linked in 630 */ 631 static int mcd_getdisklabel(int unit) 632 { 633 struct mcd_data *cd = mcd_data + unit; 634 635 if (cd->flags & MCDLABEL) 636 return -1; 637 638 bzero(&cd->dlabel,sizeof(struct disklabel)); 639 /* filled with spaces first */ 640 strncpy(cd->dlabel.d_typename," ", 641 sizeof(cd->dlabel.d_typename)); 642 strncpy(cd->dlabel.d_typename, cd->name, 643 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); 644 strncpy(cd->dlabel.d_packname,"unknown ", 645 sizeof(cd->dlabel.d_packname)); 646 cd->dlabel.d_secsize = cd->blksize; 647 cd->dlabel.d_nsectors = 100; 648 cd->dlabel.d_ntracks = 1; 649 cd->dlabel.d_ncylinders = (cd->disksize/100)+1; 650 cd->dlabel.d_secpercyl = 100; 651 cd->dlabel.d_secperunit = cd->disksize; 652 cd->dlabel.d_rpm = 300; 653 cd->dlabel.d_interleave = 1; 654 cd->dlabel.d_flags = D_REMOVABLE; 655 cd->dlabel.d_npartitions= 1; 656 cd->dlabel.d_partitions[0].p_offset = 0; 657 cd->dlabel.d_partitions[0].p_size = cd->disksize; 658 cd->dlabel.d_partitions[0].p_fstype = 9; 659 cd->dlabel.d_magic = DISKMAGIC; 660 cd->dlabel.d_magic2 = DISKMAGIC; 661 cd->dlabel.d_checksum = dkcksum(&cd->dlabel); 662 663 cd->flags |= MCDLABEL; 664 return 0; 665 } 666 667 int mcdsize(dev_t dev) 668 { 669 int size; 670 int unit = mcd_unit(dev); 671 struct mcd_data *cd = mcd_data + unit; 672 673 if (mcd_volinfo(unit) == 0) { 674 cd->blksize = MCDBLK; 675 size = msf2hsg(cd->volinfo.vol_msf, 0); 676 cd->disksize = size * (MCDBLK/DEV_BSIZE); 677 return 0; 678 } 679 return -1; 680 } 681 682 /*************************************************************** 683 * lower level of driver starts here 684 **************************************************************/ 685 686 #ifdef NOTDEF 687 static char 688 irqs[] = { 689 0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00, 690 0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00 691 }; 692 693 static char 694 drqs[] = { 695 0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07, 696 }; 697 #endif 698 699 #ifdef NOT_YET 700 static void 701 mcd_configure(struct mcd_data *cd) 702 { 703 outb(cd->iobase+mcd_config,cd->config); 704 } 705 #endif 706 707 /* Wait for non-busy - return 0 on timeout */ 708 static int 709 twiddle_thumbs(int port, int unit, int count, char *whine) 710 { 711 int i; 712 713 for (i = 0; i < count; i++) { 714 if (!(inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)) 715 return 1; 716 } 717 if (bootverbose) 718 printf("mcd%d: timeout %s\n", unit, whine); 719 return 0; 720 } 721 722 /* check to see if a Mitsumi CD-ROM is attached to the ISA bus */ 723 724 int 725 mcd_probe(struct isa_device *dev) 726 { 727 int port = dev->id_iobase; 728 int unit = dev->id_unit; 729 int i, j; 730 unsigned char stbytes[3]; 731 static int once; 732 733 if (!once++) 734 cdevsw_add(&mcd_cdevsw); 735 736 mcd_data[unit].flags = MCDPROBING; 737 738 #ifdef NOTDEF 739 /* get irq/drq configuration word */ 740 mcd_data[unit].config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/ 741 #else 742 mcd_data[unit].config = 0; 743 #endif 744 745 /* send a reset */ 746 outb(port+MCD_FLAGS, M_RESET); 747 748 /* 749 * delay awhile by getting any pending garbage (old data) and 750 * throwing it away. 751 */ 752 for (i = 1000000; i != 0; i--) 753 inb(port+MCD_FLAGS); 754 755 /* Get status */ 756 outb(port+MCD_DATA, MCD_CMDGETSTAT); 757 if (!twiddle_thumbs(port, unit, 1000000, "getting status")) 758 return 0; /* Timeout */ 759 /* Get version information */ 760 outb(port+MCD_DATA, MCD_CMDCONTINFO); 761 for (j = 0; j < 3; j++) { 762 if (!twiddle_thumbs(port, unit, 3000, "getting version info")) 763 return 0; 764 stbytes[j] = (inb(port+MCD_DATA) & 0xFF); 765 } 766 if (stbytes[1] == stbytes[2]) 767 return 0; 768 if (stbytes[2] >= 4 || stbytes[1] != 'M') { 769 outb(port+MCD_CTRL, M_PICKLE); 770 mcd_data[unit].flags |= MCDNEWMODEL; 771 } 772 mcd_data[unit].read_command = MCD_CMDSINGLESPEEDREAD; 773 switch (stbytes[1]) { 774 case 'M': 775 if (stbytes[2] <= 2) { 776 mcd_data[unit].type = MCD_TYPE_LU002S; 777 mcd_data[unit].name = "Mitsumi LU002S"; 778 } else if (stbytes[2] <= 5) { 779 mcd_data[unit].type = MCD_TYPE_LU005S; 780 mcd_data[unit].name = "Mitsumi LU005S"; 781 } else { 782 mcd_data[unit].type = MCD_TYPE_LU006S; 783 mcd_data[unit].name = "Mitsumi LU006S"; 784 } 785 break; 786 case 'F': 787 mcd_data[unit].type = MCD_TYPE_FX001; 788 mcd_data[unit].name = "Mitsumi FX001"; 789 break; 790 case 'D': 791 mcd_data[unit].type = MCD_TYPE_FX001D; 792 mcd_data[unit].name = "Mitsumi FX001D"; 793 mcd_data[unit].read_command = MCD_CMDDOUBLESPEEDREAD; 794 break; 795 default: 796 mcd_data[unit].type = MCD_TYPE_UNKNOWN; 797 mcd_data[unit].name = "Mitsumi ???"; 798 break; 799 } 800 printf("mcd%d: type %s, version info: %c %x\n", unit, mcd_data[unit].name, 801 stbytes[1], stbytes[2]); 802 803 return 4; 804 } 805 806 807 static int 808 mcd_waitrdy(int port,int dly) 809 { 810 int i; 811 812 /* wait until flag port senses status ready */ 813 for (i=0; i<dly; i+=MIN_DELAY) { 814 if (!(inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)) 815 return 0; 816 DELAY(MIN_DELAY); 817 } 818 return -1; 819 } 820 821 static int 822 mcd_getreply(int unit,int dly) 823 { 824 struct mcd_data *cd = mcd_data + unit; 825 int port = cd->iobase; 826 827 /* wait data to become ready */ 828 if (mcd_waitrdy(port,dly)<0) { 829 printf("mcd%d: timeout getreply\n",unit); 830 return -1; 831 } 832 833 /* get the data */ 834 return inb(port+mcd_status) & 0xFF; 835 } 836 837 static int 838 mcd_getstat(int unit,int sflg) 839 { 840 int i; 841 struct mcd_data *cd = mcd_data + unit; 842 int port = cd->iobase; 843 844 /* get the status */ 845 if (sflg) 846 outb(port+mcd_command, MCD_CMDGETSTAT); 847 i = mcd_getreply(unit,DELAY_GETREPLY); 848 if (i<0 || (i & MCD_ST_CMDCHECK)) { 849 cd->curr_mode = MCD_MD_UNKNOWN; 850 return -1; 851 } 852 853 cd->status = i; 854 855 if (mcd_setflags(unit,cd) < 0) 856 return -2; 857 return cd->status; 858 } 859 860 static int 861 mcd_setflags(int unit, struct mcd_data *cd) 862 { 863 /* check flags */ 864 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 865 || !(cd->status & MCDDSKIN)) { 866 MCD_TRACE("setflags: sensed DSKCHNG or DOOROPEN or !DSKIN\n"); 867 mcd_soft_reset(unit); 868 return -1; 869 } 870 871 if (cd->status & MCDAUDIOBSY) 872 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 873 else if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) 874 cd->audio_status = CD_AS_PLAY_COMPLETED; 875 return 0; 876 } 877 878 static int 879 mcd_get(int unit, char *buf, int nmax) 880 { 881 int i,k; 882 883 for (i=0; i<nmax; i++) { 884 /* wait for data */ 885 if ((k = mcd_getreply(unit,DELAY_GETREPLY)) < 0) { 886 printf("mcd%d: timeout mcd_get\n",unit); 887 return -1; 888 } 889 buf[i] = k; 890 } 891 return i; 892 } 893 894 static int 895 mcd_send(int unit, int cmd,int nretrys) 896 { 897 int i,k=0; 898 int port = mcd_data[unit].iobase; 899 900 /*MCD_TRACE("mcd_send: command = 0x%02x\n",cmd,0,0,0);*/ 901 for (i=0; i<nretrys; i++) { 902 outb(port+mcd_command, cmd); 903 if ((k=mcd_getstat(unit,0)) != -1) 904 break; 905 } 906 if (k == -2) { 907 printf("mcd%d: media changed\n",unit); 908 return -1; 909 } 910 if (i == nretrys) { 911 printf("mcd%d: mcd_send retry cnt exceeded\n",unit); 912 return -1; 913 } 914 /*MCD_TRACE("mcd_send: done\n",0,0,0,0);*/ 915 return 0; 916 } 917 918 static void 919 hsg2msf(int hsg, bcd_t *msf) 920 { 921 hsg += 150; 922 F_msf(msf) = bin2bcd(hsg % 75); 923 hsg /= 75; 924 S_msf(msf) = bin2bcd(hsg % 60); 925 hsg /= 60; 926 M_msf(msf) = bin2bcd(hsg); 927 } 928 929 static int 930 msf2hsg(bcd_t *msf, int relative) 931 { 932 return (bcd2bin(M_msf(msf)) * 60 + bcd2bin(S_msf(msf))) * 75 + 933 bcd2bin(F_msf(msf)) - (!relative) * 150; 934 } 935 936 static int 937 mcd_volinfo(int unit) 938 { 939 struct mcd_data *cd = mcd_data + unit; 940 941 /* Just return if we already have it */ 942 if (cd->flags & MCDVOLINFO) return 0; 943 944 /*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/ 945 946 /* send volume info command */ 947 if (mcd_send(unit,MCD_CMDGETVOLINFO,MCD_RETRYS) < 0) 948 return EIO; 949 950 /* get data */ 951 if (mcd_get(unit,(char*) &cd->volinfo,sizeof(struct mcd_volinfo)) < 0) { 952 printf("mcd%d: mcd_volinfo: error read data\n",unit); 953 return EIO; 954 } 955 956 if (cd->volinfo.trk_low > 0 && 957 cd->volinfo.trk_high >= cd->volinfo.trk_low 958 ) { 959 cd->flags |= MCDVOLINFO; /* volinfo is OK */ 960 return 0; 961 } 962 963 return EINVAL; 964 } 965 966 static void 967 mcdintr(unit) 968 int unit; 969 { 970 MCD_TRACE("stray interrupt\n"); 971 } 972 973 /* state machine to process read requests 974 * initialize with MCD_S_BEGIN: calculate sizes, and read status 975 * MCD_S_WAITSTAT: wait for status reply, set mode 976 * MCD_S_WAITMODE: waits for status reply from set mode, set read command 977 * MCD_S_WAITREAD: wait for read ready, read data 978 */ 979 static struct mcd_mbx *mbxsave; 980 static struct callout_handle tohandle = CALLOUT_HANDLE_INITIALIZER(&tohandle); 981 982 static void 983 mcd_timeout(void *arg) 984 { 985 mcd_doread((int)arg, mbxsave); 986 } 987 988 static void 989 mcd_doread(int state, struct mcd_mbx *mbxin) 990 { 991 struct mcd_mbx *mbx = (state!=MCD_S_BEGIN) ? mbxsave : mbxin; 992 int unit = mbx->unit; 993 int port = mbx->port; 994 int com_port = mbx->port + mcd_command; 995 int data_port = mbx->port + mcd_rdata; 996 struct buf *bp = mbx->bp; 997 struct mcd_data *cd = mcd_data + unit; 998 999 int rm,i,k; 1000 struct mcd_read2 rbuf; 1001 int blknum; 1002 caddr_t addr; 1003 1004 loop: 1005 switch (state) { 1006 case MCD_S_BEGIN: 1007 mbx = mbxsave = mbxin; 1008 1009 case MCD_S_BEGIN1: 1010 retry_status: 1011 /* get status */ 1012 outb(com_port, MCD_CMDGETSTAT); 1013 mbx->count = RDELAY_WAITSTAT; 1014 tohandle = timeout(mcd_timeout, 1015 (caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */ 1016 return; 1017 case MCD_S_WAITSTAT: 1018 untimeout(mcd_timeout,(caddr_t)MCD_S_WAITSTAT, tohandle); 1019 if (mbx->count-- >= 0) { 1020 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) { 1021 timeout(mcd_timeout, 1022 (caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */ 1023 return; 1024 } 1025 cd->status = inb(port+mcd_status) & 0xFF; 1026 if (cd->status & MCD_ST_CMDCHECK) 1027 goto retry_status; 1028 if (mcd_setflags(unit,cd) < 0) 1029 goto changed; 1030 MCD_TRACE("got WAITSTAT delay=%d\n", 1031 RDELAY_WAITSTAT-mbx->count); 1032 /* reject, if audio active */ 1033 if (cd->status & MCDAUDIOBSY) { 1034 printf("mcd%d: audio is active\n",unit); 1035 goto readerr; 1036 } 1037 1038 retry_mode: 1039 /* to check for raw/cooked mode */ 1040 if (cd->flags & MCDREADRAW) { 1041 rm = MCD_MD_RAW; 1042 mbx->sz = MCDRBLK; 1043 } else { 1044 rm = MCD_MD_COOKED; 1045 mbx->sz = cd->blksize; 1046 } 1047 1048 if (rm == cd->curr_mode) 1049 goto modedone; 1050 1051 mbx->count = RDELAY_WAITMODE; 1052 1053 cd->curr_mode = MCD_MD_UNKNOWN; 1054 mbx->mode = rm; 1055 mcd_put(com_port, MCD_CMDSETMODE); 1056 mcd_put(com_port, rm); 1057 1058 tohandle = timeout(mcd_timeout, 1059 (caddr_t)MCD_S_WAITMODE,hz/100); /* XXX */ 1060 return; 1061 } else { 1062 printf("mcd%d: timeout getstatus\n",unit); 1063 goto readerr; 1064 } 1065 1066 case MCD_S_WAITMODE: 1067 untimeout(mcd_timeout,(caddr_t)MCD_S_WAITMODE, tohandle); 1068 if (mbx->count-- < 0) { 1069 printf("mcd%d: timeout set mode\n",unit); 1070 goto readerr; 1071 } 1072 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) { 1073 tohandle = timeout(mcd_timeout, 1074 (caddr_t)MCD_S_WAITMODE,hz/100); 1075 return; 1076 } 1077 cd->status = inb(port+mcd_status) & 0xFF; 1078 if (cd->status & MCD_ST_CMDCHECK) { 1079 cd->curr_mode = MCD_MD_UNKNOWN; 1080 goto retry_mode; 1081 } 1082 if (mcd_setflags(unit,cd) < 0) 1083 goto changed; 1084 cd->curr_mode = mbx->mode; 1085 MCD_TRACE("got WAITMODE delay=%d\n", 1086 RDELAY_WAITMODE-mbx->count); 1087 modedone: 1088 /* for first block */ 1089 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; 1090 mbx->skip = 0; 1091 1092 nextblock: 1093 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) 1094 + mbx->p_offset + mbx->skip/mbx->sz; 1095 1096 MCD_TRACE("mcd_doread: read blknum=%d for bp=%p\n", 1097 blknum, bp); 1098 1099 /* build parameter block */ 1100 hsg2msf(blknum,rbuf.start_msf); 1101 retry_read: 1102 /* send the read command */ 1103 disable_intr(); 1104 mcd_put(com_port,cd->read_command); 1105 mcd_put(com_port,rbuf.start_msf[0]); 1106 mcd_put(com_port,rbuf.start_msf[1]); 1107 mcd_put(com_port,rbuf.start_msf[2]); 1108 mcd_put(com_port,0); 1109 mcd_put(com_port,0); 1110 mcd_put(com_port,1); 1111 enable_intr(); 1112 1113 /* Spin briefly (<= 2ms) to avoid missing next block */ 1114 for (i = 0; i < 20; i++) { 1115 k = inb(port+MCD_FLAGS); 1116 if (!(k & MFL_DATA_NOT_AVAIL)) 1117 goto got_it; 1118 DELAY(100); 1119 } 1120 1121 mbx->count = RDELAY_WAITREAD; 1122 tohandle = timeout(mcd_timeout, 1123 (caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */ 1124 return; 1125 case MCD_S_WAITREAD: 1126 untimeout(mcd_timeout,(caddr_t)MCD_S_WAITREAD, tohandle); 1127 if (mbx->count-- > 0) { 1128 k = inb(port+MCD_FLAGS); 1129 if (!(k & MFL_DATA_NOT_AVAIL)) { /* XXX */ 1130 MCD_TRACE("got data delay=%d\n", 1131 RDELAY_WAITREAD-mbx->count); 1132 got_it: 1133 /* data is ready */ 1134 addr = bp->b_data + mbx->skip; 1135 1136 outb(port+mcd_ctl2,0x04); /* XXX */ 1137 for (i=0; i<mbx->sz; i++) 1138 *addr++ = inb(data_port); 1139 outb(port+mcd_ctl2,0x0c); /* XXX */ 1140 1141 k = inb(port+MCD_FLAGS); 1142 /* If we still have some junk, read it too */ 1143 if (!(k & MFL_DATA_NOT_AVAIL)) { 1144 outb(port+mcd_ctl2,0x04); /* XXX */ 1145 (void)inb(data_port); 1146 (void)inb(data_port); 1147 outb(port+mcd_ctl2,0x0c); /* XXX */ 1148 } 1149 1150 if (--mbx->nblk > 0) { 1151 mbx->skip += mbx->sz; 1152 goto nextblock; 1153 } 1154 1155 /* return buffer */ 1156 bp->b_resid = 0; 1157 biodone(bp); 1158 1159 cd->flags &= ~(MCDMBXBSY|MCDREADRAW); 1160 mcd_start(mbx->unit); 1161 return; 1162 } 1163 if (!(k & MFL_STATUS_NOT_AVAIL)) { 1164 cd->status = inb(port+mcd_status) & 0xFF; 1165 if (cd->status & MCD_ST_CMDCHECK) 1166 goto retry_read; 1167 if (mcd_setflags(unit,cd) < 0) 1168 goto changed; 1169 } 1170 tohandle = timeout(mcd_timeout, 1171 (caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */ 1172 return; 1173 } else { 1174 printf("mcd%d: timeout read data\n",unit); 1175 goto readerr; 1176 } 1177 } 1178 1179 readerr: 1180 if (mbx->retry-- > 0) { 1181 printf("mcd%d: retrying\n",unit); 1182 state = MCD_S_BEGIN1; 1183 goto loop; 1184 } 1185 harderr: 1186 /* invalidate the buffer */ 1187 bp->b_flags |= B_ERROR; 1188 bp->b_resid = bp->b_bcount; 1189 biodone(bp); 1190 1191 cd->flags &= ~(MCDMBXBSY|MCDREADRAW); 1192 mcd_start(mbx->unit); 1193 return; 1194 1195 changed: 1196 printf("mcd%d: media changed\n", unit); 1197 goto harderr; 1198 1199 #ifdef NOTDEF 1200 printf("mcd%d: unit timeout, resetting\n",mbx->unit); 1201 outb(mbx->port+mcd_reset,MCD_CMDRESET); 1202 DELAY(300000); 1203 (void)mcd_getstat(mbx->unit,1); 1204 (void)mcd_getstat(mbx->unit,1); 1205 /*cd->status &= ~MCDDSKCHNG; */ 1206 cd->debug = 1; /* preventive set debug mode */ 1207 1208 #endif 1209 1210 } 1211 1212 static int 1213 mcd_lock_door(int unit, int lock) 1214 { 1215 struct mcd_data *cd = mcd_data + unit; 1216 int port = cd->iobase; 1217 1218 outb(port+mcd_command, MCD_CMDLOCKDRV); 1219 outb(port+mcd_command, lock); 1220 if (mcd_getstat(unit,0) == -1) 1221 return EIO; 1222 return 0; 1223 } 1224 1225 static int 1226 mcd_close_tray(int unit) 1227 { 1228 struct mcd_data *cd = mcd_data + unit; 1229 int port = cd->iobase; 1230 int retry, r; 1231 1232 if (mcd_getstat(unit,1) == -1) 1233 return EIO; 1234 if (cd->status & MCDDOOROPEN) { 1235 outb(port+mcd_command, MCD_CMDCLOSETRAY); 1236 for (retry = 0; retry < CLOSE_TRAY_SECS * WAIT_FRAC; retry++) { 1237 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) 1238 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdcls", hz/WAIT_FRAC); 1239 else { 1240 if ((r = mcd_getstat(unit,0)) == -1) 1241 return EIO; 1242 return 0; 1243 } 1244 } 1245 return ENXIO; 1246 } 1247 return 0; 1248 } 1249 1250 static int 1251 mcd_eject(int unit) 1252 { 1253 struct mcd_data *cd = mcd_data + unit; 1254 int port = cd->iobase, r; 1255 1256 if (mcd_getstat(unit,1) == -1) /* detect disk change too */ 1257 return EIO; 1258 if (cd->status & MCDDOOROPEN) 1259 return 0; 1260 if ((r = mcd_stop(unit)) == EIO) 1261 return r; 1262 outb(port+mcd_command, MCD_CMDEJECTDISK); 1263 if (mcd_getstat(unit,0) == -1) 1264 return EIO; 1265 return 0; 1266 } 1267 1268 static int 1269 mcd_inject(int unit) 1270 { 1271 struct mcd_data *cd = mcd_data + unit; 1272 1273 if (mcd_getstat(unit,1) == -1) /* detect disk change too */ 1274 return EIO; 1275 if (cd->status & MCDDOOROPEN) 1276 return mcd_close_tray(unit); 1277 return 0; 1278 } 1279 1280 static int 1281 mcd_hard_reset(int unit) 1282 { 1283 struct mcd_data *cd = mcd_data + unit; 1284 int port = cd->iobase; 1285 1286 outb(port+mcd_reset,MCD_CMDRESET); 1287 cd->curr_mode = MCD_MD_UNKNOWN; 1288 cd->audio_status = CD_AS_AUDIO_INVALID; 1289 return 0; 1290 } 1291 1292 static void 1293 mcd_soft_reset(int unit) 1294 { 1295 struct mcd_data *cd = mcd_data + unit; 1296 int i; 1297 1298 cd->flags &= (MCDINIT|MCDPROBING|MCDNEWMODEL); 1299 cd->curr_mode = MCD_MD_UNKNOWN; 1300 for (i=0; i<MAXPARTITIONS; i++) cd->partflags[i] = 0; 1301 cd->audio_status = CD_AS_AUDIO_INVALID; 1302 } 1303 1304 static int 1305 mcd_setmode(int unit, int mode) 1306 { 1307 struct mcd_data *cd = mcd_data + unit; 1308 int port = cd->iobase; 1309 int retry, st; 1310 1311 if (cd->curr_mode == mode) 1312 return 0; 1313 if (cd->debug) 1314 printf("mcd%d: setting mode to %d\n", unit, mode); 1315 for(retry=0; retry<MCD_RETRYS; retry++) 1316 { 1317 cd->curr_mode = MCD_MD_UNKNOWN; 1318 outb(port+mcd_command, MCD_CMDSETMODE); 1319 outb(port+mcd_command, mode); 1320 if ((st = mcd_getstat(unit, 0)) >= 0) { 1321 cd->curr_mode = mode; 1322 return 0; 1323 } 1324 if (st == -2) { 1325 printf("mcd%d: media changed\n", unit); 1326 break; 1327 } 1328 } 1329 1330 return -1; 1331 } 1332 1333 static int 1334 mcd_toc_header(int unit, struct ioc_toc_header *th) 1335 { 1336 struct mcd_data *cd = mcd_data + unit; 1337 int r; 1338 1339 if ((r = mcd_volinfo(unit)) != 0) 1340 return r; 1341 1342 th->starting_track = bcd2bin(cd->volinfo.trk_low); 1343 th->ending_track = bcd2bin(cd->volinfo.trk_high); 1344 th->len = 2 * sizeof(u_char) /* start & end tracks */ + 1345 (th->ending_track + 1 - th->starting_track + 1) * 1346 sizeof(struct cd_toc_entry); 1347 1348 return 0; 1349 } 1350 1351 static int 1352 mcd_read_toc(int unit) 1353 { 1354 struct mcd_data *cd = mcd_data + unit; 1355 struct ioc_toc_header th; 1356 struct mcd_qchninfo q; 1357 int rc, trk, idx, retry; 1358 1359 /* Only read TOC if needed */ 1360 if (cd->flags & MCDTOC) 1361 return 0; 1362 1363 if (cd->debug) 1364 printf("mcd%d: reading toc header\n", unit); 1365 1366 if ((rc = mcd_toc_header(unit, &th)) != 0) 1367 return rc; 1368 1369 if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) 1370 return EIO; 1371 1372 if (mcd_setmode(unit, MCD_MD_TOC) != 0) 1373 return EIO; 1374 1375 if (cd->debug) 1376 printf("mcd%d: get_toc reading qchannel info\n",unit); 1377 1378 for(trk=th.starting_track; trk<=th.ending_track; trk++) 1379 cd->toc[trk].idx_no = 0; 1380 trk = th.ending_track - th.starting_track + 1; 1381 for(retry=0; retry<600 && trk>0; retry++) 1382 { 1383 if (mcd_getqchan(unit, &q) < 0) break; 1384 idx = bcd2bin(q.idx_no); 1385 if (idx>=th.starting_track && idx<=th.ending_track && q.trk_no==0) { 1386 if (cd->toc[idx].idx_no == 0) { 1387 cd->toc[idx] = q; 1388 trk--; 1389 } 1390 } 1391 } 1392 1393 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1394 return EIO; 1395 1396 if (trk != 0) 1397 return ENXIO; 1398 1399 /* add a fake last+1 */ 1400 idx = th.ending_track + 1; 1401 cd->toc[idx].control = cd->toc[idx-1].control; 1402 cd->toc[idx].addr_type = cd->toc[idx-1].addr_type; 1403 cd->toc[idx].trk_no = 0; 1404 cd->toc[idx].idx_no = MCD_LASTPLUS1; 1405 cd->toc[idx].hd_pos_msf[0] = cd->volinfo.vol_msf[0]; 1406 cd->toc[idx].hd_pos_msf[1] = cd->volinfo.vol_msf[1]; 1407 cd->toc[idx].hd_pos_msf[2] = cd->volinfo.vol_msf[2]; 1408 1409 if (cd->debug) 1410 { int i; 1411 for (i = th.starting_track; i <= idx; i++) 1412 printf("mcd%d: trk %d idx %d pos %d %d %d\n", 1413 unit, i, 1414 cd->toc[i].idx_no > 0x99 ? cd->toc[i].idx_no : 1415 bcd2bin(cd->toc[i].idx_no), 1416 bcd2bin(cd->toc[i].hd_pos_msf[0]), 1417 bcd2bin(cd->toc[i].hd_pos_msf[1]), 1418 bcd2bin(cd->toc[i].hd_pos_msf[2])); 1419 } 1420 1421 cd->flags |= MCDTOC; 1422 1423 return 0; 1424 } 1425 1426 #if 0 1427 static int 1428 mcd_toc_entry(int unit, struct ioc_read_toc_single_entry *te) 1429 { 1430 struct mcd_data *cd = mcd_data + unit; 1431 struct ioc_toc_header th; 1432 int rc, trk; 1433 1434 if (te->address_format != CD_MSF_FORMAT 1435 && te->address_format != CD_LBA_FORMAT) 1436 return EINVAL; 1437 1438 /* Copy the toc header */ 1439 if ((rc = mcd_toc_header(unit, &th)) != 0) 1440 return rc; 1441 1442 /* verify starting track */ 1443 trk = te->track; 1444 if (trk == 0) 1445 trk = th.starting_track; 1446 else if (trk == MCD_LASTPLUS1) 1447 trk = th.ending_track + 1; 1448 else if (trk < th.starting_track || trk > th.ending_track + 1) 1449 return EINVAL; 1450 1451 /* Make sure we have a valid toc */ 1452 if ((rc=mcd_read_toc(unit)) != 0) 1453 return rc; 1454 1455 /* Copy the TOC data. */ 1456 if (cd->toc[trk].idx_no == 0) 1457 return EIO; 1458 1459 te->entry.control = cd->toc[trk].control; 1460 te->entry.addr_type = cd->toc[trk].addr_type; 1461 te->entry.track = 1462 cd->toc[trk].idx_no > 0x99 ? cd->toc[trk].idx_no : 1463 bcd2bin(cd->toc[trk].idx_no); 1464 switch (te->address_format) { 1465 case CD_MSF_FORMAT: 1466 te->entry.addr.msf.unused = 0; 1467 te->entry.addr.msf.minute = bcd2bin(cd->toc[trk].hd_pos_msf[0]); 1468 te->entry.addr.msf.second = bcd2bin(cd->toc[trk].hd_pos_msf[1]); 1469 te->entry.addr.msf.frame = bcd2bin(cd->toc[trk].hd_pos_msf[2]); 1470 break; 1471 case CD_LBA_FORMAT: 1472 te->entry.addr.lba = htonl(msf2hsg(cd->toc[trk].hd_pos_msf, 0)); 1473 break; 1474 } 1475 return 0; 1476 } 1477 #endif 1478 1479 static int 1480 mcd_toc_entrys(int unit, struct ioc_read_toc_entry *te) 1481 { 1482 struct mcd_data *cd = mcd_data + unit; 1483 struct cd_toc_entry entries[MCD_MAXTOCS]; 1484 struct ioc_toc_header th; 1485 int rc, n, trk, len; 1486 1487 if ( te->data_len < sizeof(entries[0]) 1488 || (te->data_len % sizeof(entries[0])) != 0 1489 || (te->address_format != CD_MSF_FORMAT 1490 && te->address_format != CD_LBA_FORMAT) 1491 ) 1492 return EINVAL; 1493 1494 /* Copy the toc header */ 1495 if ((rc = mcd_toc_header(unit, &th)) != 0) 1496 return rc; 1497 1498 /* verify starting track */ 1499 trk = te->starting_track; 1500 if (trk == 0) 1501 trk = th.starting_track; 1502 else if (trk == MCD_LASTPLUS1) 1503 trk = th.ending_track + 1; 1504 else if (trk < th.starting_track || trk > th.ending_track + 1) 1505 return EINVAL; 1506 1507 len = ((th.ending_track + 1 - trk) + 1) * 1508 sizeof(entries[0]); 1509 if (te->data_len < len) 1510 len = te->data_len; 1511 if (len > sizeof(entries)) 1512 return EINVAL; 1513 1514 /* Make sure we have a valid toc */ 1515 if ((rc=mcd_read_toc(unit)) != 0) 1516 return rc; 1517 1518 /* Copy the TOC data. */ 1519 for (n = 0; len > 0 && trk <= th.ending_track + 1; trk++) { 1520 if (cd->toc[trk].idx_no == 0) 1521 continue; 1522 entries[n].control = cd->toc[trk].control; 1523 entries[n].addr_type = cd->toc[trk].addr_type; 1524 entries[n].track = 1525 cd->toc[trk].idx_no > 0x99 ? cd->toc[trk].idx_no : 1526 bcd2bin(cd->toc[trk].idx_no); 1527 switch (te->address_format) { 1528 case CD_MSF_FORMAT: 1529 entries[n].addr.msf.unused = 0; 1530 entries[n].addr.msf.minute = bcd2bin(cd->toc[trk].hd_pos_msf[0]); 1531 entries[n].addr.msf.second = bcd2bin(cd->toc[trk].hd_pos_msf[1]); 1532 entries[n].addr.msf.frame = bcd2bin(cd->toc[trk].hd_pos_msf[2]); 1533 break; 1534 case CD_LBA_FORMAT: 1535 entries[n].addr.lba = htonl(msf2hsg(cd->toc[trk].hd_pos_msf, 0)); 1536 break; 1537 } 1538 len -= sizeof(struct cd_toc_entry); 1539 n++; 1540 } 1541 1542 /* copy the data back */ 1543 return copyout(entries, te->data, n * sizeof(struct cd_toc_entry)); 1544 } 1545 1546 static int 1547 mcd_stop(int unit) 1548 { 1549 struct mcd_data *cd = mcd_data + unit; 1550 1551 /* Verify current status */ 1552 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS && 1553 cd->audio_status != CD_AS_PLAY_PAUSED && 1554 cd->audio_status != CD_AS_PLAY_COMPLETED) { 1555 if (cd->debug) 1556 printf("mcd%d: stop attempted when not playing, audio status %d\n", 1557 unit, cd->audio_status); 1558 return EINVAL; 1559 } 1560 if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) 1561 if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) 1562 return EIO; 1563 cd->audio_status = CD_AS_PLAY_COMPLETED; 1564 return 0; 1565 } 1566 1567 static int 1568 mcd_getqchan(int unit, struct mcd_qchninfo *q) 1569 { 1570 struct mcd_data *cd = mcd_data + unit; 1571 1572 if (mcd_send(unit, MCD_CMDGETQCHN, MCD_RETRYS) < 0) 1573 return -1; 1574 if (mcd_get(unit, (char *) q, sizeof(struct mcd_qchninfo)) < 0) 1575 return -1; 1576 if (cd->debug) { 1577 printf("mcd%d: getqchan control=0x%x addr_type=0x%x trk=%d ind=%d ttm=%d:%d.%d dtm=%d:%d.%d\n", 1578 unit, 1579 q->control, q->addr_type, bcd2bin(q->trk_no), 1580 bcd2bin(q->idx_no), 1581 bcd2bin(q->trk_size_msf[0]), bcd2bin(q->trk_size_msf[1]), 1582 bcd2bin(q->trk_size_msf[2]), 1583 bcd2bin(q->hd_pos_msf[0]), bcd2bin(q->hd_pos_msf[1]), 1584 bcd2bin(q->hd_pos_msf[2])); 1585 } 1586 return 0; 1587 } 1588 1589 static int 1590 mcd_subchan(int unit, struct ioc_read_subchannel *sc) 1591 { 1592 struct mcd_data *cd = mcd_data + unit; 1593 struct mcd_qchninfo q; 1594 struct cd_sub_channel_info data; 1595 int lba; 1596 1597 if (cd->debug) 1598 printf("mcd%d: subchan af=%d, df=%d\n", unit, 1599 sc->address_format, 1600 sc->data_format); 1601 1602 if (sc->address_format != CD_MSF_FORMAT && 1603 sc->address_format != CD_LBA_FORMAT) 1604 return EINVAL; 1605 1606 if (sc->data_format != CD_CURRENT_POSITION && 1607 sc->data_format != CD_MEDIA_CATALOG) 1608 return EINVAL; 1609 1610 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1611 return EIO; 1612 1613 if (mcd_getqchan(unit, &q) < 0) 1614 return EIO; 1615 1616 data.header.audio_status = cd->audio_status; 1617 data.what.position.data_format = sc->data_format; 1618 1619 switch (sc->data_format) { 1620 case CD_MEDIA_CATALOG: 1621 data.what.media_catalog.mc_valid = 1; 1622 data.what.media_catalog.mc_number[0] = '\0'; 1623 break; 1624 1625 case CD_CURRENT_POSITION: 1626 data.what.position.control = q.control; 1627 data.what.position.addr_type = q.addr_type; 1628 data.what.position.track_number = bcd2bin(q.trk_no); 1629 data.what.position.index_number = bcd2bin(q.idx_no); 1630 switch (sc->address_format) { 1631 case CD_MSF_FORMAT: 1632 data.what.position.reladdr.msf.unused = 0; 1633 data.what.position.reladdr.msf.minute = bcd2bin(q.trk_size_msf[0]); 1634 data.what.position.reladdr.msf.second = bcd2bin(q.trk_size_msf[1]); 1635 data.what.position.reladdr.msf.frame = bcd2bin(q.trk_size_msf[2]); 1636 data.what.position.absaddr.msf.unused = 0; 1637 data.what.position.absaddr.msf.minute = bcd2bin(q.hd_pos_msf[0]); 1638 data.what.position.absaddr.msf.second = bcd2bin(q.hd_pos_msf[1]); 1639 data.what.position.absaddr.msf.frame = bcd2bin(q.hd_pos_msf[2]); 1640 break; 1641 case CD_LBA_FORMAT: 1642 lba = msf2hsg(q.trk_size_msf, 1); 1643 /* 1644 * Pre-gap has index number of 0, and decreasing MSF 1645 * address. Must be converted to negative LBA, per 1646 * SCSI spec. 1647 */ 1648 if (data.what.position.index_number == 0) 1649 lba = -lba; 1650 data.what.position.reladdr.lba = htonl(lba); 1651 data.what.position.absaddr.lba = htonl(msf2hsg(q.hd_pos_msf, 0)); 1652 break; 1653 } 1654 break; 1655 } 1656 1657 return copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len)); 1658 } 1659 1660 static int 1661 mcd_playmsf(int unit, struct ioc_play_msf *p) 1662 { 1663 struct mcd_data *cd = mcd_data + unit; 1664 struct mcd_read2 pb; 1665 1666 if (cd->debug) 1667 printf("mcd%d: playmsf: from %d:%d.%d to %d:%d.%d\n", 1668 unit, 1669 p->start_m, p->start_s, p->start_f, 1670 p->end_m, p->end_s, p->end_f); 1671 1672 if ((p->start_m * 60 * 75 + p->start_s * 75 + p->start_f) >= 1673 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) || 1674 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) > 1675 M_msf(cd->volinfo.vol_msf) * 60 * 75 + 1676 S_msf(cd->volinfo.vol_msf) * 75 + 1677 F_msf(cd->volinfo.vol_msf)) 1678 return EINVAL; 1679 1680 pb.start_msf[0] = bin2bcd(p->start_m); 1681 pb.start_msf[1] = bin2bcd(p->start_s); 1682 pb.start_msf[2] = bin2bcd(p->start_f); 1683 pb.end_msf[0] = bin2bcd(p->end_m); 1684 pb.end_msf[1] = bin2bcd(p->end_s); 1685 pb.end_msf[2] = bin2bcd(p->end_f); 1686 1687 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1688 return EIO; 1689 1690 return mcd_play(unit, &pb); 1691 } 1692 1693 static int 1694 mcd_playtracks(int unit, struct ioc_play_track *pt) 1695 { 1696 struct mcd_data *cd = mcd_data + unit; 1697 struct mcd_read2 pb; 1698 int a = pt->start_track; 1699 int z = pt->end_track; 1700 int rc, i; 1701 1702 if ((rc = mcd_read_toc(unit)) != 0) 1703 return rc; 1704 1705 if (cd->debug) 1706 printf("mcd%d: playtracks from %d:%d to %d:%d\n", unit, 1707 a, pt->start_index, z, pt->end_index); 1708 1709 if ( a < bcd2bin(cd->volinfo.trk_low) 1710 || a > bcd2bin(cd->volinfo.trk_high) 1711 || a > z 1712 || z < bcd2bin(cd->volinfo.trk_low) 1713 || z > bcd2bin(cd->volinfo.trk_high)) 1714 return EINVAL; 1715 1716 for (i = 0; i < 3; i++) { 1717 pb.start_msf[i] = cd->toc[a].hd_pos_msf[i]; 1718 pb.end_msf[i] = cd->toc[z+1].hd_pos_msf[i]; 1719 } 1720 1721 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1722 return EIO; 1723 1724 return mcd_play(unit, &pb); 1725 } 1726 1727 static int 1728 mcd_playblocks(int unit, struct ioc_play_blocks *p) 1729 { 1730 struct mcd_data *cd = mcd_data + unit; 1731 struct mcd_read2 pb; 1732 1733 if (cd->debug) 1734 printf("mcd%d: playblocks: blkno %d length %d\n", 1735 unit, p->blk, p->len); 1736 1737 if (p->blk > cd->disksize || p->len > cd->disksize || 1738 p->blk < 0 || p->len < 0 || 1739 (p->blk + p->len) > cd->disksize) 1740 return EINVAL; 1741 1742 hsg2msf(p->blk, pb.start_msf); 1743 hsg2msf(p->blk + p->len, pb.end_msf); 1744 1745 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1746 return EIO; 1747 1748 return mcd_play(unit, &pb); 1749 } 1750 1751 static int 1752 mcd_play(int unit, struct mcd_read2 *pb) 1753 { 1754 struct mcd_data *cd = mcd_data + unit; 1755 int com_port = cd->iobase + mcd_command; 1756 int retry, st = -1, status; 1757 1758 cd->lastpb = *pb; 1759 for(retry=0; retry<MCD_RETRYS; retry++) { 1760 1761 disable_intr(); 1762 outb(com_port, MCD_CMDSINGLESPEEDREAD); 1763 outb(com_port, pb->start_msf[0]); 1764 outb(com_port, pb->start_msf[1]); 1765 outb(com_port, pb->start_msf[2]); 1766 outb(com_port, pb->end_msf[0]); 1767 outb(com_port, pb->end_msf[1]); 1768 outb(com_port, pb->end_msf[2]); 1769 enable_intr(); 1770 1771 status=mcd_getstat(unit, 0); 1772 if (status == -1) 1773 continue; 1774 else if (status != -2) 1775 st = 0; 1776 break; 1777 } 1778 1779 if (status == -2) { 1780 printf("mcd%d: media changed\n", unit); 1781 return ENXIO; 1782 } 1783 if (cd->debug) 1784 printf("mcd%d: mcd_play retry=%d, status=0x%02x\n", unit, retry, status); 1785 if (st < 0) 1786 return ENXIO; 1787 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 1788 return 0; 1789 } 1790 1791 static int 1792 mcd_pause(int unit) 1793 { 1794 struct mcd_data *cd = mcd_data + unit; 1795 struct mcd_qchninfo q; 1796 int rc; 1797 1798 /* Verify current status */ 1799 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS && 1800 cd->audio_status != CD_AS_PLAY_PAUSED) { 1801 if (cd->debug) 1802 printf("mcd%d: pause attempted when not playing, audio status %d\n", 1803 unit, cd->audio_status); 1804 return EINVAL; 1805 } 1806 1807 /* Get the current position */ 1808 if (mcd_getqchan(unit, &q) < 0) 1809 return EIO; 1810 1811 /* Copy it into lastpb */ 1812 cd->lastpb.start_msf[0] = q.hd_pos_msf[0]; 1813 cd->lastpb.start_msf[1] = q.hd_pos_msf[1]; 1814 cd->lastpb.start_msf[2] = q.hd_pos_msf[2]; 1815 1816 /* Stop playing */ 1817 if ((rc=mcd_stop(unit)) != 0) 1818 return rc; 1819 1820 /* Set the proper status and exit */ 1821 cd->audio_status = CD_AS_PLAY_PAUSED; 1822 return 0; 1823 } 1824 1825 static int 1826 mcd_resume(int unit) 1827 { 1828 struct mcd_data *cd = mcd_data + unit; 1829 1830 if (cd->audio_status != CD_AS_PLAY_PAUSED) 1831 return EINVAL; 1832 return mcd_play(unit, &cd->lastpb); 1833 }
Cache object: 792db93497706b818259500616d6c993
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