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 #if NMCD > 0 49 #include "opt_devfs.h" 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/conf.h> 54 #include <sys/fcntl.h> 55 #include <sys/buf.h> 56 #include <sys/cdio.h> 57 #include <sys/dkbad.h> 58 #include <sys/disklabel.h> 59 #include <sys/kernel.h> 60 #ifdef DEVFS 61 #include <sys/devfsext.h> 62 #endif /*DEVFS*/ 63 64 #include <machine/clock.h> 65 66 #include <i386/isa/isa_device.h> 67 #include <i386/isa/mcdreg.h> 68 69 #define MCD_TRACE(format, args...) \ 70 { \ 71 if (mcd_data[unit].debug) { \ 72 printf("mcd%d: status=0x%02x: ", \ 73 unit, mcd_data[unit].status); \ 74 printf(format, ## args); \ 75 } \ 76 } 77 78 #define mcd_part(dev) ((minor(dev)) & 7) 79 #define mcd_unit(dev) (((minor(dev)) & 0x38) >> 3) 80 #define mcd_phys(dev) (((minor(dev)) & 0x40) >> 6) 81 #define RAW_PART 2 82 83 /* flags */ 84 #define MCDVALID 0x0001 /* parameters loaded */ 85 #define MCDINIT 0x0002 /* device is init'd */ 86 #define MCDNEWMODEL 0x0004 /* device is new model */ 87 #define MCDLABEL 0x0008 /* label is read */ 88 #define MCDPROBING 0x0010 /* probing */ 89 #define MCDREADRAW 0x0020 /* read raw mode (2352 bytes) */ 90 #define MCDVOLINFO 0x0040 /* already read volinfo */ 91 #define MCDTOC 0x0080 /* already read toc */ 92 #define MCDMBXBSY 0x0100 /* local mbx is busy */ 93 94 /* status */ 95 #define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */ 96 #define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */ 97 #define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */ 98 #define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */ 99 100 /* These are apparently the different states a mitsumi can get up to */ 101 #define MCDCDABSENT 0x0030 102 #define MCDCDPRESENT 0x0020 103 #define MCDSCLOSED 0x0080 104 #define MCDSOPEN 0x00a0 105 106 #define MCD_MD_UNKNOWN (-1) 107 108 /* toc */ 109 #define MCD_MAXTOCS 104 /* from the Linux driver */ 110 #define MCD_LASTPLUS1 170 /* special toc entry */ 111 112 #define MCD_TYPE_UNKNOWN 0 113 #define MCD_TYPE_LU002S 1 114 #define MCD_TYPE_LU005S 2 115 #define MCD_TYPE_LU006S 3 116 #define MCD_TYPE_FX001 4 117 #define MCD_TYPE_FX001D 5 118 119 struct mcd_mbx { 120 short unit; 121 short port; 122 short retry; 123 short nblk; 124 int sz; 125 u_long skip; 126 struct buf *bp; 127 int p_offset; 128 short count; 129 short mode; 130 }; 131 132 static struct mcd_data { 133 short type; 134 char *name; 135 short config; 136 short flags; 137 u_char read_command; 138 short status; 139 int blksize; 140 u_long disksize; 141 int iobase; 142 struct disklabel dlabel; 143 int partflags[MAXPARTITIONS]; 144 int openflags; 145 struct mcd_volinfo volinfo; 146 struct mcd_qchninfo toc[MCD_MAXTOCS]; 147 short audio_status; 148 short curr_mode; 149 struct mcd_read2 lastpb; 150 short debug; 151 struct buf_queue_head head; /* head of buf queue */ 152 struct mcd_mbx mbx; 153 #ifdef DEVFS 154 void *ra_devfs_token; /* store the devfs handle here */ 155 void *rc_devfs_token; /* store the devfs handle here */ 156 void *a_devfs_token; /* store the devfs handle here */ 157 void *c_devfs_token; /* store the devfs handle here */ 158 #endif 159 } mcd_data[NMCD]; 160 161 /* reader state machine */ 162 #define MCD_S_BEGIN 0 163 #define MCD_S_BEGIN1 1 164 #define MCD_S_WAITSTAT 2 165 #define MCD_S_WAITMODE 3 166 #define MCD_S_WAITREAD 4 167 168 /* prototypes */ 169 static void mcd_start(int unit); 170 static int mcd_getdisklabel(int unit); 171 #ifdef NOTYET 172 static void mcd_configure(struct mcd_data *cd); 173 #endif 174 static int mcd_get(int unit, char *buf, int nmax); 175 static int mcd_setflags(int unit,struct mcd_data *cd); 176 static int mcd_getstat(int unit,int sflg); 177 static int mcd_send(int unit, int cmd,int nretrys); 178 static void hsg2msf(int hsg, bcd_t *msf); 179 static int msf2hsg(bcd_t *msf, int relative); 180 static int mcd_volinfo(int unit); 181 static ointhand2_t mcdintr; 182 static int mcd_waitrdy(int port,int dly); 183 static timeout_t mcd_timeout; 184 static void mcd_doread(int state, struct mcd_mbx *mbxin); 185 static void mcd_soft_reset(int unit); 186 static int mcd_hard_reset(int unit); 187 static int mcd_setmode(int unit, int mode); 188 static int mcd_getqchan(int unit, struct mcd_qchninfo *q); 189 static int mcd_subchan(int unit, struct ioc_read_subchannel *sc); 190 static int mcd_toc_header(int unit, struct ioc_toc_header *th); 191 static int mcd_read_toc(int unit); 192 static int mcd_toc_entrys(int unit, struct ioc_read_toc_entry *te); 193 #if 0 194 static int mcd_toc_entry(int unit, struct ioc_read_toc_single_entry *te); 195 #endif 196 static int mcd_stop(int unit); 197 static int mcd_eject(int unit); 198 static int mcd_inject(int unit); 199 static int mcd_playtracks(int unit, struct ioc_play_track *pt); 200 static int mcd_play(int unit, struct mcd_read2 *pb); 201 static int mcd_playmsf(int unit, struct ioc_play_msf *pt); 202 static int mcd_playblocks(int unit, struct ioc_play_blocks *); 203 static int mcd_pause(int unit); 204 static int mcd_resume(int unit); 205 static int mcd_lock_door(int unit, int lock); 206 static int mcd_close_tray(int unit); 207 208 static int mcd_probe(struct isa_device *dev); 209 static int mcd_attach(struct isa_device *dev); 210 struct isa_driver mcddriver = { mcd_probe, mcd_attach, "mcd" }; 211 212 static d_open_t mcdopen; 213 static d_read_t mcdread; 214 static d_close_t mcdclose; 215 static d_ioctl_t mcdioctl; 216 static d_psize_t mcdsize; 217 static d_strategy_t mcdstrategy; 218 219 #define CDEV_MAJOR 29 220 #define BDEV_MAJOR 7 221 222 223 224 static struct cdevsw mcd_cdevsw = { 225 mcdopen, mcdclose, mcdread, nowrite, 226 mcdioctl, nostop, nullreset, nodevtotty, 227 seltrue, nommap, mcdstrategy, "mcd", 228 NULL, -1, nodump, nopsize, 229 D_DISK, 0, NODEV }; 230 231 #define mcd_put(port,byte) outb(port,byte) 232 233 #define MCD_RETRYS 5 234 #define MCD_RDRETRYS 8 235 236 #define CLOSE_TRAY_SECS 8 237 #define DISK_SENSE_SECS 3 238 #define WAIT_FRAC 4 239 240 /* several delays */ 241 #define RDELAY_WAITSTAT 300 242 #define RDELAY_WAITMODE 300 243 #define RDELAY_WAITREAD 800 244 245 #define MIN_DELAY 15 246 #define DELAY_GETREPLY 5000000 247 248 int mcd_attach(struct isa_device *dev) 249 { 250 int unit = dev->id_unit; 251 struct mcd_data *cd = mcd_data + unit; 252 253 dev->id_ointr = mcdintr; 254 cd->iobase = dev->id_iobase; 255 cd->flags |= MCDINIT; 256 mcd_soft_reset(unit); 257 bufq_init(&cd->head); 258 259 #ifdef NOTYET 260 /* wire controller for interrupts and dma */ 261 mcd_configure(cd); 262 #endif 263 /* name filled in probe */ 264 #ifdef DEVFS 265 cd->ra_devfs_token = 266 devfs_add_devswf(&mcd_cdevsw, dkmakeminor(unit, 0, 0), 267 DV_CHR, UID_ROOT, GID_OPERATOR, 0640, 268 "rmcd%da", unit); 269 cd->rc_devfs_token = 270 devfs_add_devswf(&mcd_cdevsw, dkmakeminor(unit, 0, RAW_PART), 271 DV_CHR, UID_ROOT, GID_OPERATOR, 0640, 272 "rmcd%dc", unit); 273 cd->a_devfs_token = 274 devfs_add_devswf(&mcd_cdevsw, dkmakeminor(unit, 0, 0), 275 DV_BLK, UID_ROOT, GID_OPERATOR, 0640, 276 "mcd%da", unit); 277 cd->c_devfs_token = 278 devfs_add_devswf(&mcd_cdevsw, dkmakeminor(unit, 0, RAW_PART), 279 DV_BLK, UID_ROOT, GID_OPERATOR, 0640, 280 "mcd%dc", unit); 281 #endif 282 return 1; 283 } 284 285 int mcdopen(dev_t dev, int flags, int fmt, struct proc *p) 286 { 287 int unit,part,phys,r,retry; 288 struct mcd_data *cd; 289 290 unit = mcd_unit(dev); 291 if (unit >= NMCD) 292 return ENXIO; 293 294 cd = mcd_data + unit; 295 part = mcd_part(dev); 296 phys = mcd_phys(dev); 297 298 /* not initialized*/ 299 if (!(cd->flags & MCDINIT)) 300 return ENXIO; 301 302 /* invalidated in the meantime? mark all open part's invalid */ 303 if (!(cd->flags & MCDVALID) && cd->openflags) 304 return ENXIO; 305 306 if (mcd_getstat(unit,1) == -1) 307 return EIO; 308 309 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 310 || !(cd->status & MCDDSKIN)) 311 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) { 312 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdsn1", hz/WAIT_FRAC); 313 if ((r = mcd_getstat(unit,1)) == -1) 314 return EIO; 315 if (r != -2) 316 break; 317 } 318 319 if (( (cd->status & (MCDDOOROPEN|MCDDSKCHNG)) 320 || !(cd->status & MCDDSKIN) 321 ) 322 && major(dev) == CDEV_MAJOR && part == RAW_PART 323 ) { 324 cd->openflags |= (1<<part); 325 if (phys) 326 cd->partflags[part] |= MCDREADRAW; 327 return 0; 328 } 329 if (cd->status & MCDDOOROPEN) { 330 printf("mcd%d: door is open\n", unit); 331 return ENXIO; 332 } 333 if (!(cd->status & MCDDSKIN)) { 334 printf("mcd%d: no CD inside\n", unit); 335 return ENXIO; 336 } 337 if (cd->status & MCDDSKCHNG) { 338 printf("mcd%d: CD not sensed\n", unit); 339 return ENXIO; 340 } 341 342 if (mcdsize(dev) < 0) { 343 if (major(dev) == CDEV_MAJOR && part == RAW_PART) { 344 cd->openflags |= (1<<part); 345 if (phys) 346 cd->partflags[part] |= MCDREADRAW; 347 return 0; 348 } 349 printf("mcd%d: failed to get disk size\n",unit); 350 return ENXIO; 351 } else 352 cd->flags |= MCDVALID; 353 354 /* XXX get a default disklabel */ 355 mcd_getdisklabel(unit); 356 357 MCD_TRACE("open: partition=%d, disksize = %ld, blksize=%d\n", 358 part, cd->disksize, cd->blksize); 359 360 if (part == RAW_PART || 361 (part < cd->dlabel.d_npartitions && 362 cd->dlabel.d_partitions[part].p_fstype != FS_UNUSED)) { 363 cd->openflags |= (1<<part); 364 if (part == RAW_PART && phys) 365 cd->partflags[part] |= MCDREADRAW; 366 (void) mcd_lock_door(unit, MCD_LK_LOCK); 367 if (!(cd->flags & MCDVALID)) 368 return ENXIO; 369 return 0; 370 } 371 372 return ENXIO; 373 } 374 375 int mcdclose(dev_t dev, int flags, int fmt, struct proc *p) 376 { 377 int unit,part; 378 struct mcd_data *cd; 379 380 unit = mcd_unit(dev); 381 if (unit >= NMCD) 382 return ENXIO; 383 384 cd = mcd_data + unit; 385 part = mcd_part(dev); 386 387 if (!(cd->flags & MCDINIT) || !(cd->openflags & (1<<part))) 388 return ENXIO; 389 390 MCD_TRACE("close: partition=%d\n", part); 391 392 (void) mcd_lock_door(unit, MCD_LK_UNLOCK); 393 cd->openflags &= ~(1<<part); 394 cd->partflags[part] &= ~MCDREADRAW; 395 396 return 0; 397 } 398 399 static int 400 mcdread(dev_t dev, struct uio *uio, int ioflag) 401 { 402 return (physio(mcdstrategy, NULL, dev, 1, minphys, uio)); 403 } 404 405 void 406 mcdstrategy(struct buf *bp) 407 { 408 struct mcd_data *cd; 409 int s; 410 411 int unit = mcd_unit(bp->b_dev); 412 413 cd = mcd_data + unit; 414 415 /* test validity */ 416 /*MCD_TRACE("strategy: buf=0x%lx, unit=%ld, block#=%ld bcount=%ld\n", 417 bp,unit,bp->b_blkno,bp->b_bcount);*/ 418 if (unit >= NMCD || bp->b_blkno < 0) { 419 printf("mcdstrategy: unit = %d, blkno = %ld, bcount = %ld\n", 420 unit, (long)bp->b_blkno, bp->b_bcount); 421 printf("mcd: mcdstratregy failure"); 422 bp->b_error = EINVAL; 423 bp->b_flags |= B_ERROR; 424 goto bad; 425 } 426 427 /* if device invalidated (e.g. media change, door open), error */ 428 if (!(cd->flags & MCDVALID)) { 429 MCD_TRACE("strategy: drive not valid\n"); 430 bp->b_error = EIO; 431 goto bad; 432 } 433 434 /* read only */ 435 if (!(bp->b_flags & B_READ)) { 436 bp->b_error = EROFS; 437 goto bad; 438 } 439 440 /* no data to read */ 441 if (bp->b_bcount == 0) 442 goto done; 443 444 /* for non raw access, check partition limits */ 445 if (mcd_part(bp->b_dev) != RAW_PART) { 446 if (!(cd->flags & MCDLABEL)) { 447 bp->b_error = EIO; 448 goto bad; 449 } 450 /* adjust transfer if necessary */ 451 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) { 452 goto done; 453 } 454 } else { 455 bp->b_pblkno = bp->b_blkno; 456 bp->b_resid = 0; 457 } 458 459 /* queue it */ 460 s = splbio(); 461 bufqdisksort(&cd->head, bp); 462 splx(s); 463 464 /* now check whether we can perform processing */ 465 mcd_start(unit); 466 return; 467 468 bad: 469 bp->b_flags |= B_ERROR; 470 done: 471 bp->b_resid = bp->b_bcount; 472 biodone(bp); 473 return; 474 } 475 476 static void mcd_start(int unit) 477 { 478 struct mcd_data *cd = mcd_data + unit; 479 struct partition *p; 480 struct buf *bp; 481 register s = splbio(); 482 483 if (cd->flags & MCDMBXBSY) { 484 splx(s); 485 return; 486 } 487 488 bp = bufq_first(&cd->head); 489 if (bp != 0) { 490 /* block found to process, dequeue */ 491 /*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/ 492 bufq_remove(&cd->head, bp); 493 splx(s); 494 } else { 495 /* nothing to do */ 496 splx(s); 497 return; 498 } 499 500 /* changed media? */ 501 if (!(cd->flags & MCDVALID)) { 502 MCD_TRACE("mcd_start: drive not valid\n"); 503 return; 504 } 505 506 p = cd->dlabel.d_partitions + mcd_part(bp->b_dev); 507 508 cd->flags |= MCDMBXBSY; 509 if (cd->partflags[mcd_part(bp->b_dev)] & MCDREADRAW) 510 cd->flags |= MCDREADRAW; 511 cd->mbx.unit = unit; 512 cd->mbx.port = cd->iobase; 513 cd->mbx.retry = MCD_RETRYS; 514 cd->mbx.bp = bp; 515 cd->mbx.p_offset = p->p_offset; 516 517 /* calling the read routine */ 518 mcd_doread(MCD_S_BEGIN,&(cd->mbx)); 519 /* triggers mcd_start, when successful finished */ 520 return; 521 } 522 523 int mcdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct proc *p) 524 { 525 struct mcd_data *cd; 526 int unit,part,retry,r; 527 528 unit = mcd_unit(dev); 529 part = mcd_part(dev); 530 cd = mcd_data + unit; 531 532 if (mcd_getstat(unit, 1) == -1) /* detect disk change too */ 533 return EIO; 534 MCD_TRACE("ioctl called 0x%lx\n", cmd); 535 536 switch (cmd) { 537 case CDIOCSETPATCH: 538 case CDIOCGETVOL: 539 case CDIOCSETVOL: 540 case CDIOCSETMONO: 541 case CDIOCSETSTERIO: 542 case CDIOCSETMUTE: 543 case CDIOCSETLEFT: 544 case CDIOCSETRIGHT: 545 return EINVAL; 546 case CDIOCEJECT: 547 return mcd_eject(unit); 548 case CDIOCSETDEBUG: 549 cd->debug = 1; 550 return 0; 551 case CDIOCCLRDEBUG: 552 cd->debug = 0; 553 return 0; 554 case CDIOCRESET: 555 return mcd_hard_reset(unit); 556 case CDIOCALLOW: 557 return mcd_lock_door(unit, MCD_LK_UNLOCK); 558 case CDIOCPREVENT: 559 return mcd_lock_door(unit, MCD_LK_LOCK); 560 case CDIOCCLOSE: 561 return mcd_inject(unit); 562 } 563 564 if (!(cd->flags & MCDVALID)) { 565 if ( major(dev) != CDEV_MAJOR 566 || part != RAW_PART 567 || !(cd->openflags & (1<<RAW_PART)) 568 ) 569 return ENXIO; 570 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 571 || !(cd->status & MCDDSKIN)) 572 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) { 573 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdsn2", hz/WAIT_FRAC); 574 if ((r = mcd_getstat(unit,1)) == -1) 575 return EIO; 576 if (r != -2) 577 break; 578 } 579 if ( (cd->status & (MCDDOOROPEN|MCDDSKCHNG)) 580 || !(cd->status & MCDDSKIN) 581 || mcdsize(dev) < 0 582 ) 583 return ENXIO; 584 cd->flags |= MCDVALID; 585 mcd_getdisklabel(unit); 586 if (mcd_phys(dev)) 587 cd->partflags[part] |= MCDREADRAW; 588 (void) mcd_lock_door(unit, MCD_LK_LOCK); 589 if (!(cd->flags & MCDVALID)) 590 return ENXIO; 591 } 592 593 switch (cmd) { 594 case DIOCSBAD: 595 return EINVAL; 596 case DIOCGDINFO: 597 *(struct disklabel *) addr = cd->dlabel; 598 return 0; 599 case DIOCGPART: 600 ((struct partinfo *) addr)->disklab = &cd->dlabel; 601 ((struct partinfo *) addr)->part = 602 &cd->dlabel.d_partitions[mcd_part(dev)]; 603 return 0; 604 605 /* 606 * a bit silly, but someone might want to test something on a 607 * section of cdrom. 608 */ 609 case DIOCWDINFO: 610 case DIOCSDINFO: 611 if ((flags & FWRITE) == 0) 612 return EBADF; 613 else { 614 return setdisklabel(&cd->dlabel, 615 (struct disklabel *) addr, 616 0); 617 } 618 case DIOCWLABEL: 619 return EBADF; 620 case CDIOCPLAYTRACKS: 621 return mcd_playtracks(unit, (struct ioc_play_track *) addr); 622 case CDIOCPLAYBLOCKS: 623 return mcd_playblocks(unit, (struct ioc_play_blocks *) addr); 624 case CDIOCPLAYMSF: 625 return mcd_playmsf(unit, (struct ioc_play_msf *) addr); 626 case CDIOCREADSUBCHANNEL: 627 return mcd_subchan(unit, (struct ioc_read_subchannel *) addr); 628 case CDIOREADTOCHEADER: 629 return mcd_toc_header(unit, (struct ioc_toc_header *) addr); 630 case CDIOREADTOCENTRYS: 631 return mcd_toc_entrys(unit, (struct ioc_read_toc_entry *) addr); 632 case CDIOCRESUME: 633 return mcd_resume(unit); 634 case CDIOCPAUSE: 635 return mcd_pause(unit); 636 case CDIOCSTART: 637 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 638 return EIO; 639 return 0; 640 case CDIOCSTOP: 641 return mcd_stop(unit); 642 default: 643 return ENOTTY; 644 } 645 /*NOTREACHED*/ 646 } 647 648 /* this could have been taken from scsi/cd.c, but it is not clear 649 * whether the scsi cd driver is linked in 650 */ 651 static int mcd_getdisklabel(int unit) 652 { 653 struct mcd_data *cd = mcd_data + unit; 654 655 if (cd->flags & MCDLABEL) 656 return -1; 657 658 bzero(&cd->dlabel,sizeof(struct disklabel)); 659 /* filled with spaces first */ 660 strncpy(cd->dlabel.d_typename," ", 661 sizeof(cd->dlabel.d_typename)); 662 strncpy(cd->dlabel.d_typename, cd->name, 663 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); 664 strncpy(cd->dlabel.d_packname,"unknown ", 665 sizeof(cd->dlabel.d_packname)); 666 cd->dlabel.d_secsize = cd->blksize; 667 cd->dlabel.d_nsectors = 100; 668 cd->dlabel.d_ntracks = 1; 669 cd->dlabel.d_ncylinders = (cd->disksize/100)+1; 670 cd->dlabel.d_secpercyl = 100; 671 cd->dlabel.d_secperunit = cd->disksize; 672 cd->dlabel.d_rpm = 300; 673 cd->dlabel.d_interleave = 1; 674 cd->dlabel.d_flags = D_REMOVABLE; 675 cd->dlabel.d_npartitions= 1; 676 cd->dlabel.d_partitions[0].p_offset = 0; 677 cd->dlabel.d_partitions[0].p_size = cd->disksize; 678 cd->dlabel.d_partitions[0].p_fstype = 9; 679 cd->dlabel.d_magic = DISKMAGIC; 680 cd->dlabel.d_magic2 = DISKMAGIC; 681 cd->dlabel.d_checksum = dkcksum(&cd->dlabel); 682 683 cd->flags |= MCDLABEL; 684 return 0; 685 } 686 687 int mcdsize(dev_t dev) 688 { 689 int size; 690 int unit = mcd_unit(dev); 691 struct mcd_data *cd = mcd_data + unit; 692 693 if (mcd_volinfo(unit) == 0) { 694 cd->blksize = MCDBLK; 695 size = msf2hsg(cd->volinfo.vol_msf, 0); 696 cd->disksize = size * (MCDBLK/DEV_BSIZE); 697 return 0; 698 } 699 return -1; 700 } 701 702 /*************************************************************** 703 * lower level of driver starts here 704 **************************************************************/ 705 706 #ifdef NOTDEF 707 static char 708 irqs[] = { 709 0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00, 710 0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00 711 }; 712 713 static char 714 drqs[] = { 715 0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07, 716 }; 717 #endif 718 719 #ifdef NOT_YET 720 static void 721 mcd_configure(struct mcd_data *cd) 722 { 723 outb(cd->iobase+mcd_config,cd->config); 724 } 725 #endif 726 727 /* Wait for non-busy - return 0 on timeout */ 728 static int 729 twiddle_thumbs(int port, int unit, int count, char *whine) 730 { 731 int i; 732 733 for (i = 0; i < count; i++) { 734 if (!(inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)) 735 return 1; 736 } 737 if (bootverbose) 738 printf("mcd%d: timeout %s\n", unit, whine); 739 return 0; 740 } 741 742 /* check to see if a Mitsumi CD-ROM is attached to the ISA bus */ 743 744 int 745 mcd_probe(struct isa_device *dev) 746 { 747 int port = dev->id_iobase; 748 int unit = dev->id_unit; 749 int i, j; 750 unsigned char stbytes[3]; 751 752 mcd_data[unit].flags = MCDPROBING; 753 754 #ifdef NOTDEF 755 /* get irq/drq configuration word */ 756 mcd_data[unit].config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/ 757 #else 758 mcd_data[unit].config = 0; 759 #endif 760 761 /* send a reset */ 762 outb(port+MCD_FLAGS, M_RESET); 763 764 /* 765 * delay awhile by getting any pending garbage (old data) and 766 * throwing it away. 767 */ 768 for (i = 1000000; i != 0; i--) 769 inb(port+MCD_FLAGS); 770 771 /* Get status */ 772 outb(port+MCD_DATA, MCD_CMDGETSTAT); 773 if (!twiddle_thumbs(port, unit, 1000000, "getting status")) 774 return 0; /* Timeout */ 775 /* Get version information */ 776 outb(port+MCD_DATA, MCD_CMDCONTINFO); 777 for (j = 0; j < 3; j++) { 778 if (!twiddle_thumbs(port, unit, 3000, "getting version info")) 779 return 0; 780 stbytes[j] = (inb(port+MCD_DATA) & 0xFF); 781 } 782 if (stbytes[1] == stbytes[2]) 783 return 0; 784 if (stbytes[2] >= 4 || stbytes[1] != 'M') { 785 outb(port+MCD_CTRL, M_PICKLE); 786 mcd_data[unit].flags |= MCDNEWMODEL; 787 } 788 mcd_data[unit].read_command = MCD_CMDSINGLESPEEDREAD; 789 switch (stbytes[1]) { 790 case 'M': 791 if (stbytes[2] <= 2) { 792 mcd_data[unit].type = MCD_TYPE_LU002S; 793 mcd_data[unit].name = "Mitsumi LU002S"; 794 } else if (stbytes[2] <= 5) { 795 mcd_data[unit].type = MCD_TYPE_LU005S; 796 mcd_data[unit].name = "Mitsumi LU005S"; 797 } else { 798 mcd_data[unit].type = MCD_TYPE_LU006S; 799 mcd_data[unit].name = "Mitsumi LU006S"; 800 } 801 break; 802 case 'F': 803 mcd_data[unit].type = MCD_TYPE_FX001; 804 mcd_data[unit].name = "Mitsumi FX001"; 805 break; 806 case 'D': 807 mcd_data[unit].type = MCD_TYPE_FX001D; 808 mcd_data[unit].name = "Mitsumi FX001D"; 809 mcd_data[unit].read_command = MCD_CMDDOUBLESPEEDREAD; 810 break; 811 default: 812 mcd_data[unit].type = MCD_TYPE_UNKNOWN; 813 mcd_data[unit].name = "Mitsumi ???"; 814 break; 815 } 816 printf("mcd%d: type %s, version info: %c %x\n", unit, mcd_data[unit].name, 817 stbytes[1], stbytes[2]); 818 819 return 4; 820 } 821 822 823 static int 824 mcd_waitrdy(int port,int dly) 825 { 826 int i; 827 828 /* wait until flag port senses status ready */ 829 for (i=0; i<dly; i+=MIN_DELAY) { 830 if (!(inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)) 831 return 0; 832 DELAY(MIN_DELAY); 833 } 834 return -1; 835 } 836 837 static int 838 mcd_getreply(int unit,int dly) 839 { 840 struct mcd_data *cd = mcd_data + unit; 841 int port = cd->iobase; 842 843 /* wait data to become ready */ 844 if (mcd_waitrdy(port,dly)<0) { 845 printf("mcd%d: timeout getreply\n",unit); 846 return -1; 847 } 848 849 /* get the data */ 850 return inb(port+mcd_status) & 0xFF; 851 } 852 853 static int 854 mcd_getstat(int unit,int sflg) 855 { 856 int i; 857 struct mcd_data *cd = mcd_data + unit; 858 int port = cd->iobase; 859 860 /* get the status */ 861 if (sflg) 862 outb(port+mcd_command, MCD_CMDGETSTAT); 863 i = mcd_getreply(unit,DELAY_GETREPLY); 864 if (i<0 || (i & MCD_ST_CMDCHECK)) { 865 cd->curr_mode = MCD_MD_UNKNOWN; 866 return -1; 867 } 868 869 cd->status = i; 870 871 if (mcd_setflags(unit,cd) < 0) 872 return -2; 873 return cd->status; 874 } 875 876 static int 877 mcd_setflags(int unit, struct mcd_data *cd) 878 { 879 /* check flags */ 880 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 881 || !(cd->status & MCDDSKIN)) { 882 MCD_TRACE("setflags: sensed DSKCHNG or DOOROPEN or !DSKIN\n"); 883 mcd_soft_reset(unit); 884 return -1; 885 } 886 887 if (cd->status & MCDAUDIOBSY) 888 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 889 else if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) 890 cd->audio_status = CD_AS_PLAY_COMPLETED; 891 return 0; 892 } 893 894 static int 895 mcd_get(int unit, char *buf, int nmax) 896 { 897 int i,k; 898 899 for (i=0; i<nmax; i++) { 900 /* wait for data */ 901 if ((k = mcd_getreply(unit,DELAY_GETREPLY)) < 0) { 902 printf("mcd%d: timeout mcd_get\n",unit); 903 return -1; 904 } 905 buf[i] = k; 906 } 907 return i; 908 } 909 910 static int 911 mcd_send(int unit, int cmd,int nretrys) 912 { 913 int i,k=0; 914 int port = mcd_data[unit].iobase; 915 916 /*MCD_TRACE("mcd_send: command = 0x%02x\n",cmd,0,0,0);*/ 917 for (i=0; i<nretrys; i++) { 918 outb(port+mcd_command, cmd); 919 if ((k=mcd_getstat(unit,0)) != -1) 920 break; 921 } 922 if (k == -2) { 923 printf("mcd%d: media changed\n",unit); 924 return -1; 925 } 926 if (i == nretrys) { 927 printf("mcd%d: mcd_send retry cnt exceeded\n",unit); 928 return -1; 929 } 930 /*MCD_TRACE("mcd_send: done\n",0,0,0,0);*/ 931 return 0; 932 } 933 934 static void 935 hsg2msf(int hsg, bcd_t *msf) 936 { 937 hsg += 150; 938 F_msf(msf) = bin2bcd(hsg % 75); 939 hsg /= 75; 940 S_msf(msf) = bin2bcd(hsg % 60); 941 hsg /= 60; 942 M_msf(msf) = bin2bcd(hsg); 943 } 944 945 static int 946 msf2hsg(bcd_t *msf, int relative) 947 { 948 return (bcd2bin(M_msf(msf)) * 60 + bcd2bin(S_msf(msf))) * 75 + 949 bcd2bin(F_msf(msf)) - (!relative) * 150; 950 } 951 952 static int 953 mcd_volinfo(int unit) 954 { 955 struct mcd_data *cd = mcd_data + unit; 956 957 /* Just return if we already have it */ 958 if (cd->flags & MCDVOLINFO) return 0; 959 960 /*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/ 961 962 /* send volume info command */ 963 if (mcd_send(unit,MCD_CMDGETVOLINFO,MCD_RETRYS) < 0) 964 return EIO; 965 966 /* get data */ 967 if (mcd_get(unit,(char*) &cd->volinfo,sizeof(struct mcd_volinfo)) < 0) { 968 printf("mcd%d: mcd_volinfo: error read data\n",unit); 969 return EIO; 970 } 971 972 if (cd->volinfo.trk_low > 0 && 973 cd->volinfo.trk_high >= cd->volinfo.trk_low 974 ) { 975 cd->flags |= MCDVOLINFO; /* volinfo is OK */ 976 return 0; 977 } 978 979 return EINVAL; 980 } 981 982 static void 983 mcdintr(unit) 984 int unit; 985 { 986 MCD_TRACE("stray interrupt\n"); 987 } 988 989 /* state machine to process read requests 990 * initialize with MCD_S_BEGIN: calculate sizes, and read status 991 * MCD_S_WAITSTAT: wait for status reply, set mode 992 * MCD_S_WAITMODE: waits for status reply from set mode, set read command 993 * MCD_S_WAITREAD: wait for read ready, read data 994 */ 995 static struct mcd_mbx *mbxsave; 996 static struct callout_handle tohandle = CALLOUT_HANDLE_INITIALIZER(&tohandle); 997 998 static void 999 mcd_timeout(void *arg) 1000 { 1001 mcd_doread((int)arg, mbxsave); 1002 } 1003 1004 static void 1005 mcd_doread(int state, struct mcd_mbx *mbxin) 1006 { 1007 struct mcd_mbx *mbx = (state!=MCD_S_BEGIN) ? mbxsave : mbxin; 1008 int unit = mbx->unit; 1009 int port = mbx->port; 1010 int com_port = mbx->port + mcd_command; 1011 int data_port = mbx->port + mcd_rdata; 1012 struct buf *bp = mbx->bp; 1013 struct mcd_data *cd = mcd_data + unit; 1014 1015 int rm,i,k; 1016 struct mcd_read2 rbuf; 1017 int blknum; 1018 caddr_t addr; 1019 1020 loop: 1021 switch (state) { 1022 case MCD_S_BEGIN: 1023 mbx = mbxsave = mbxin; 1024 1025 case MCD_S_BEGIN1: 1026 retry_status: 1027 /* get status */ 1028 outb(com_port, MCD_CMDGETSTAT); 1029 mbx->count = RDELAY_WAITSTAT; 1030 tohandle = timeout(mcd_timeout, 1031 (caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */ 1032 return; 1033 case MCD_S_WAITSTAT: 1034 untimeout(mcd_timeout,(caddr_t)MCD_S_WAITSTAT, tohandle); 1035 if (mbx->count-- >= 0) { 1036 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) { 1037 timeout(mcd_timeout, 1038 (caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */ 1039 return; 1040 } 1041 cd->status = inb(port+mcd_status) & 0xFF; 1042 if (cd->status & MCD_ST_CMDCHECK) 1043 goto retry_status; 1044 if (mcd_setflags(unit,cd) < 0) 1045 goto changed; 1046 MCD_TRACE("got WAITSTAT delay=%d\n", 1047 RDELAY_WAITSTAT-mbx->count); 1048 /* reject, if audio active */ 1049 if (cd->status & MCDAUDIOBSY) { 1050 printf("mcd%d: audio is active\n",unit); 1051 goto readerr; 1052 } 1053 1054 retry_mode: 1055 /* to check for raw/cooked mode */ 1056 if (cd->flags & MCDREADRAW) { 1057 rm = MCD_MD_RAW; 1058 mbx->sz = MCDRBLK; 1059 } else { 1060 rm = MCD_MD_COOKED; 1061 mbx->sz = cd->blksize; 1062 } 1063 1064 if (rm == cd->curr_mode) 1065 goto modedone; 1066 1067 mbx->count = RDELAY_WAITMODE; 1068 1069 cd->curr_mode = MCD_MD_UNKNOWN; 1070 mbx->mode = rm; 1071 mcd_put(com_port, MCD_CMDSETMODE); 1072 mcd_put(com_port, rm); 1073 1074 tohandle = timeout(mcd_timeout, 1075 (caddr_t)MCD_S_WAITMODE,hz/100); /* XXX */ 1076 return; 1077 } else { 1078 printf("mcd%d: timeout getstatus\n",unit); 1079 goto readerr; 1080 } 1081 1082 case MCD_S_WAITMODE: 1083 untimeout(mcd_timeout,(caddr_t)MCD_S_WAITMODE, tohandle); 1084 if (mbx->count-- < 0) { 1085 printf("mcd%d: timeout set mode\n",unit); 1086 goto readerr; 1087 } 1088 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) { 1089 tohandle = timeout(mcd_timeout, 1090 (caddr_t)MCD_S_WAITMODE,hz/100); 1091 return; 1092 } 1093 cd->status = inb(port+mcd_status) & 0xFF; 1094 if (cd->status & MCD_ST_CMDCHECK) { 1095 cd->curr_mode = MCD_MD_UNKNOWN; 1096 goto retry_mode; 1097 } 1098 if (mcd_setflags(unit,cd) < 0) 1099 goto changed; 1100 cd->curr_mode = mbx->mode; 1101 MCD_TRACE("got WAITMODE delay=%d\n", 1102 RDELAY_WAITMODE-mbx->count); 1103 modedone: 1104 /* for first block */ 1105 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; 1106 mbx->skip = 0; 1107 1108 nextblock: 1109 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) 1110 + mbx->p_offset + mbx->skip/mbx->sz; 1111 1112 MCD_TRACE("mcd_doread: read blknum=%d for bp=%p\n", 1113 blknum, bp); 1114 1115 /* build parameter block */ 1116 hsg2msf(blknum,rbuf.start_msf); 1117 retry_read: 1118 /* send the read command */ 1119 disable_intr(); 1120 mcd_put(com_port,cd->read_command); 1121 mcd_put(com_port,rbuf.start_msf[0]); 1122 mcd_put(com_port,rbuf.start_msf[1]); 1123 mcd_put(com_port,rbuf.start_msf[2]); 1124 mcd_put(com_port,0); 1125 mcd_put(com_port,0); 1126 mcd_put(com_port,1); 1127 enable_intr(); 1128 1129 /* Spin briefly (<= 2ms) to avoid missing next block */ 1130 for (i = 0; i < 20; i++) { 1131 k = inb(port+MCD_FLAGS); 1132 if (!(k & MFL_DATA_NOT_AVAIL)) 1133 goto got_it; 1134 DELAY(100); 1135 } 1136 1137 mbx->count = RDELAY_WAITREAD; 1138 tohandle = timeout(mcd_timeout, 1139 (caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */ 1140 return; 1141 case MCD_S_WAITREAD: 1142 untimeout(mcd_timeout,(caddr_t)MCD_S_WAITREAD, tohandle); 1143 if (mbx->count-- > 0) { 1144 k = inb(port+MCD_FLAGS); 1145 if (!(k & MFL_DATA_NOT_AVAIL)) { /* XXX */ 1146 MCD_TRACE("got data delay=%d\n", 1147 RDELAY_WAITREAD-mbx->count); 1148 got_it: 1149 /* data is ready */ 1150 addr = bp->b_data + mbx->skip; 1151 1152 outb(port+mcd_ctl2,0x04); /* XXX */ 1153 for (i=0; i<mbx->sz; i++) 1154 *addr++ = inb(data_port); 1155 outb(port+mcd_ctl2,0x0c); /* XXX */ 1156 1157 k = inb(port+MCD_FLAGS); 1158 /* If we still have some junk, read it too */ 1159 if (!(k & MFL_DATA_NOT_AVAIL)) { 1160 outb(port+mcd_ctl2,0x04); /* XXX */ 1161 (void)inb(data_port); 1162 (void)inb(data_port); 1163 outb(port+mcd_ctl2,0x0c); /* XXX */ 1164 } 1165 1166 if (--mbx->nblk > 0) { 1167 mbx->skip += mbx->sz; 1168 goto nextblock; 1169 } 1170 1171 /* return buffer */ 1172 bp->b_resid = 0; 1173 biodone(bp); 1174 1175 cd->flags &= ~(MCDMBXBSY|MCDREADRAW); 1176 mcd_start(mbx->unit); 1177 return; 1178 } 1179 if (!(k & MFL_STATUS_NOT_AVAIL)) { 1180 cd->status = inb(port+mcd_status) & 0xFF; 1181 if (cd->status & MCD_ST_CMDCHECK) 1182 goto retry_read; 1183 if (mcd_setflags(unit,cd) < 0) 1184 goto changed; 1185 } 1186 tohandle = timeout(mcd_timeout, 1187 (caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */ 1188 return; 1189 } else { 1190 printf("mcd%d: timeout read data\n",unit); 1191 goto readerr; 1192 } 1193 } 1194 1195 readerr: 1196 if (mbx->retry-- > 0) { 1197 printf("mcd%d: retrying\n",unit); 1198 state = MCD_S_BEGIN1; 1199 goto loop; 1200 } 1201 harderr: 1202 /* invalidate the buffer */ 1203 bp->b_flags |= B_ERROR; 1204 bp->b_resid = bp->b_bcount; 1205 biodone(bp); 1206 1207 cd->flags &= ~(MCDMBXBSY|MCDREADRAW); 1208 mcd_start(mbx->unit); 1209 return; 1210 1211 changed: 1212 printf("mcd%d: media changed\n", unit); 1213 goto harderr; 1214 1215 #ifdef NOTDEF 1216 printf("mcd%d: unit timeout, resetting\n",mbx->unit); 1217 outb(mbx->port+mcd_reset,MCD_CMDRESET); 1218 DELAY(300000); 1219 (void)mcd_getstat(mbx->unit,1); 1220 (void)mcd_getstat(mbx->unit,1); 1221 /*cd->status &= ~MCDDSKCHNG; */ 1222 cd->debug = 1; /* preventive set debug mode */ 1223 1224 #endif 1225 1226 } 1227 1228 static int 1229 mcd_lock_door(int unit, int lock) 1230 { 1231 struct mcd_data *cd = mcd_data + unit; 1232 int port = cd->iobase; 1233 1234 outb(port+mcd_command, MCD_CMDLOCKDRV); 1235 outb(port+mcd_command, lock); 1236 if (mcd_getstat(unit,0) == -1) 1237 return EIO; 1238 return 0; 1239 } 1240 1241 static int 1242 mcd_close_tray(int unit) 1243 { 1244 struct mcd_data *cd = mcd_data + unit; 1245 int port = cd->iobase; 1246 int retry, r; 1247 1248 if (mcd_getstat(unit,1) == -1) 1249 return EIO; 1250 if (cd->status & MCDDOOROPEN) { 1251 outb(port+mcd_command, MCD_CMDCLOSETRAY); 1252 for (retry = 0; retry < CLOSE_TRAY_SECS * WAIT_FRAC; retry++) { 1253 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) 1254 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdcls", hz/WAIT_FRAC); 1255 else { 1256 if ((r = mcd_getstat(unit,0)) == -1) 1257 return EIO; 1258 return 0; 1259 } 1260 } 1261 return ENXIO; 1262 } 1263 return 0; 1264 } 1265 1266 static int 1267 mcd_eject(int unit) 1268 { 1269 struct mcd_data *cd = mcd_data + unit; 1270 int port = cd->iobase, r; 1271 1272 if (mcd_getstat(unit,1) == -1) /* detect disk change too */ 1273 return EIO; 1274 if (cd->status & MCDDOOROPEN) 1275 return 0; 1276 if ((r = mcd_stop(unit)) == EIO) 1277 return r; 1278 outb(port+mcd_command, MCD_CMDEJECTDISK); 1279 if (mcd_getstat(unit,0) == -1) 1280 return EIO; 1281 return 0; 1282 } 1283 1284 static int 1285 mcd_inject(int unit) 1286 { 1287 struct mcd_data *cd = mcd_data + unit; 1288 1289 if (mcd_getstat(unit,1) == -1) /* detect disk change too */ 1290 return EIO; 1291 if (cd->status & MCDDOOROPEN) 1292 return mcd_close_tray(unit); 1293 return 0; 1294 } 1295 1296 static int 1297 mcd_hard_reset(int unit) 1298 { 1299 struct mcd_data *cd = mcd_data + unit; 1300 int port = cd->iobase; 1301 1302 outb(port+mcd_reset,MCD_CMDRESET); 1303 cd->curr_mode = MCD_MD_UNKNOWN; 1304 cd->audio_status = CD_AS_AUDIO_INVALID; 1305 return 0; 1306 } 1307 1308 static void 1309 mcd_soft_reset(int unit) 1310 { 1311 struct mcd_data *cd = mcd_data + unit; 1312 int i; 1313 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 1320 static int 1321 mcd_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 1349 static int 1350 mcd_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->starting_track = bcd2bin(cd->volinfo.trk_low); 1359 th->ending_track = bcd2bin(cd->volinfo.trk_high); 1360 th->len = 2 * sizeof(u_char) /* start & end tracks */ + 1361 (th->ending_track + 1 - th->starting_track + 1) * 1362 sizeof(struct cd_toc_entry); 1363 1364 return 0; 1365 } 1366 1367 static int 1368 mcd_read_toc(int unit) 1369 { 1370 struct mcd_data *cd = mcd_data + unit; 1371 struct ioc_toc_header th; 1372 struct mcd_qchninfo q; 1373 int rc, trk, idx, retry; 1374 1375 /* Only read TOC if needed */ 1376 if (cd->flags & MCDTOC) 1377 return 0; 1378 1379 if (cd->debug) 1380 printf("mcd%d: reading toc header\n", unit); 1381 1382 if ((rc = mcd_toc_header(unit, &th)) != 0) 1383 return rc; 1384 1385 if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) 1386 return EIO; 1387 1388 if (mcd_setmode(unit, MCD_MD_TOC) != 0) 1389 return EIO; 1390 1391 if (cd->debug) 1392 printf("mcd%d: get_toc reading qchannel info\n",unit); 1393 1394 for(trk=th.starting_track; trk<=th.ending_track; trk++) 1395 cd->toc[trk].idx_no = 0; 1396 trk = th.ending_track - th.starting_track + 1; 1397 for(retry=0; retry<600 && trk>0; retry++) 1398 { 1399 if (mcd_getqchan(unit, &q) < 0) break; 1400 idx = bcd2bin(q.idx_no); 1401 if (idx>=th.starting_track && idx<=th.ending_track && q.trk_no==0) { 1402 if (cd->toc[idx].idx_no == 0) { 1403 cd->toc[idx] = q; 1404 trk--; 1405 } 1406 } 1407 } 1408 1409 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1410 return EIO; 1411 1412 if (trk != 0) 1413 return ENXIO; 1414 1415 /* add a fake last+1 */ 1416 idx = th.ending_track + 1; 1417 cd->toc[idx].control = cd->toc[idx-1].control; 1418 cd->toc[idx].addr_type = cd->toc[idx-1].addr_type; 1419 cd->toc[idx].trk_no = 0; 1420 cd->toc[idx].idx_no = MCD_LASTPLUS1; 1421 cd->toc[idx].hd_pos_msf[0] = cd->volinfo.vol_msf[0]; 1422 cd->toc[idx].hd_pos_msf[1] = cd->volinfo.vol_msf[1]; 1423 cd->toc[idx].hd_pos_msf[2] = cd->volinfo.vol_msf[2]; 1424 1425 if (cd->debug) 1426 { int i; 1427 for (i = th.starting_track; i <= idx; i++) 1428 printf("mcd%d: trk %d idx %d pos %d %d %d\n", 1429 unit, i, 1430 cd->toc[i].idx_no > 0x99 ? cd->toc[i].idx_no : 1431 bcd2bin(cd->toc[i].idx_no), 1432 bcd2bin(cd->toc[i].hd_pos_msf[0]), 1433 bcd2bin(cd->toc[i].hd_pos_msf[1]), 1434 bcd2bin(cd->toc[i].hd_pos_msf[2])); 1435 } 1436 1437 cd->flags |= MCDTOC; 1438 1439 return 0; 1440 } 1441 1442 #if 0 1443 static int 1444 mcd_toc_entry(int unit, struct ioc_read_toc_single_entry *te) 1445 { 1446 struct mcd_data *cd = mcd_data + unit; 1447 struct ioc_toc_header th; 1448 int rc, trk; 1449 1450 if (te->address_format != CD_MSF_FORMAT 1451 && te->address_format != CD_LBA_FORMAT) 1452 return EINVAL; 1453 1454 /* Copy the toc header */ 1455 if ((rc = mcd_toc_header(unit, &th)) != 0) 1456 return rc; 1457 1458 /* verify starting track */ 1459 trk = te->track; 1460 if (trk == 0) 1461 trk = th.starting_track; 1462 else if (trk == MCD_LASTPLUS1) 1463 trk = th.ending_track + 1; 1464 else if (trk < th.starting_track || trk > th.ending_track + 1) 1465 return EINVAL; 1466 1467 /* Make sure we have a valid toc */ 1468 if ((rc=mcd_read_toc(unit)) != 0) 1469 return rc; 1470 1471 /* Copy the TOC data. */ 1472 if (cd->toc[trk].idx_no == 0) 1473 return EIO; 1474 1475 te->entry.control = cd->toc[trk].control; 1476 te->entry.addr_type = cd->toc[trk].addr_type; 1477 te->entry.track = 1478 cd->toc[trk].idx_no > 0x99 ? cd->toc[trk].idx_no : 1479 bcd2bin(cd->toc[trk].idx_no); 1480 switch (te->address_format) { 1481 case CD_MSF_FORMAT: 1482 te->entry.addr.msf.unused = 0; 1483 te->entry.addr.msf.minute = bcd2bin(cd->toc[trk].hd_pos_msf[0]); 1484 te->entry.addr.msf.second = bcd2bin(cd->toc[trk].hd_pos_msf[1]); 1485 te->entry.addr.msf.frame = bcd2bin(cd->toc[trk].hd_pos_msf[2]); 1486 break; 1487 case CD_LBA_FORMAT: 1488 te->entry.addr.lba = htonl(msf2hsg(cd->toc[trk].hd_pos_msf, 0)); 1489 break; 1490 } 1491 return 0; 1492 } 1493 #endif 1494 1495 static int 1496 mcd_toc_entrys(int unit, struct ioc_read_toc_entry *te) 1497 { 1498 struct mcd_data *cd = mcd_data + unit; 1499 struct cd_toc_entry entries[MCD_MAXTOCS]; 1500 struct ioc_toc_header th; 1501 int rc, n, trk, len; 1502 1503 if ( te->data_len < sizeof(entries[0]) 1504 || (te->data_len % sizeof(entries[0])) != 0 1505 || te->address_format != CD_MSF_FORMAT 1506 && te->address_format != CD_LBA_FORMAT 1507 ) 1508 return EINVAL; 1509 1510 /* Copy the toc header */ 1511 if ((rc = mcd_toc_header(unit, &th)) != 0) 1512 return rc; 1513 1514 /* verify starting track */ 1515 trk = te->starting_track; 1516 if (trk == 0) 1517 trk = th.starting_track; 1518 else if (trk == MCD_LASTPLUS1) 1519 trk = th.ending_track + 1; 1520 else if (trk < th.starting_track || trk > th.ending_track + 1) 1521 return EINVAL; 1522 1523 len = ((th.ending_track + 1 - trk) + 1) * 1524 sizeof(entries[0]); 1525 if (te->data_len < len) 1526 len = te->data_len; 1527 if (len > sizeof(entries)) 1528 return EINVAL; 1529 1530 /* Make sure we have a valid toc */ 1531 if ((rc=mcd_read_toc(unit)) != 0) 1532 return rc; 1533 1534 /* Copy the TOC data. */ 1535 for (n = 0; len > 0 && trk <= th.ending_track + 1; trk++) { 1536 if (cd->toc[trk].idx_no == 0) 1537 continue; 1538 entries[n].control = cd->toc[trk].control; 1539 entries[n].addr_type = cd->toc[trk].addr_type; 1540 entries[n].track = 1541 cd->toc[trk].idx_no > 0x99 ? cd->toc[trk].idx_no : 1542 bcd2bin(cd->toc[trk].idx_no); 1543 switch (te->address_format) { 1544 case CD_MSF_FORMAT: 1545 entries[n].addr.msf.unused = 0; 1546 entries[n].addr.msf.minute = bcd2bin(cd->toc[trk].hd_pos_msf[0]); 1547 entries[n].addr.msf.second = bcd2bin(cd->toc[trk].hd_pos_msf[1]); 1548 entries[n].addr.msf.frame = bcd2bin(cd->toc[trk].hd_pos_msf[2]); 1549 break; 1550 case CD_LBA_FORMAT: 1551 entries[n].addr.lba = htonl(msf2hsg(cd->toc[trk].hd_pos_msf, 0)); 1552 break; 1553 } 1554 len -= sizeof(struct cd_toc_entry); 1555 n++; 1556 } 1557 1558 /* copy the data back */ 1559 return copyout(entries, te->data, n * sizeof(struct cd_toc_entry)); 1560 } 1561 1562 static int 1563 mcd_stop(int unit) 1564 { 1565 struct mcd_data *cd = mcd_data + unit; 1566 1567 /* Verify current status */ 1568 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS && 1569 cd->audio_status != CD_AS_PLAY_PAUSED && 1570 cd->audio_status != CD_AS_PLAY_COMPLETED) { 1571 if (cd->debug) 1572 printf("mcd%d: stop attempted when not playing, audio status %d\n", 1573 unit, cd->audio_status); 1574 return EINVAL; 1575 } 1576 if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) 1577 if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) 1578 return EIO; 1579 cd->audio_status = CD_AS_PLAY_COMPLETED; 1580 return 0; 1581 } 1582 1583 static int 1584 mcd_getqchan(int unit, struct mcd_qchninfo *q) 1585 { 1586 struct mcd_data *cd = mcd_data + unit; 1587 1588 if (mcd_send(unit, MCD_CMDGETQCHN, MCD_RETRYS) < 0) 1589 return -1; 1590 if (mcd_get(unit, (char *) q, sizeof(struct mcd_qchninfo)) < 0) 1591 return -1; 1592 if (cd->debug) { 1593 printf("mcd%d: getqchan control=0x%x addr_type=0x%x trk=%d ind=%d ttm=%d:%d.%d dtm=%d:%d.%d\n", 1594 unit, 1595 q->control, q->addr_type, bcd2bin(q->trk_no), 1596 bcd2bin(q->idx_no), 1597 bcd2bin(q->trk_size_msf[0]), bcd2bin(q->trk_size_msf[1]), 1598 bcd2bin(q->trk_size_msf[2]), 1599 bcd2bin(q->hd_pos_msf[0]), bcd2bin(q->hd_pos_msf[1]), 1600 bcd2bin(q->hd_pos_msf[2])); 1601 } 1602 return 0; 1603 } 1604 1605 static int 1606 mcd_subchan(int unit, struct ioc_read_subchannel *sc) 1607 { 1608 struct mcd_data *cd = mcd_data + unit; 1609 struct mcd_qchninfo q; 1610 struct cd_sub_channel_info data; 1611 int lba; 1612 1613 if (cd->debug) 1614 printf("mcd%d: subchan af=%d, df=%d\n", unit, 1615 sc->address_format, 1616 sc->data_format); 1617 1618 if (sc->address_format != CD_MSF_FORMAT && 1619 sc->address_format != CD_LBA_FORMAT) 1620 return EINVAL; 1621 1622 if (sc->data_format != CD_CURRENT_POSITION && 1623 sc->data_format != CD_MEDIA_CATALOG) 1624 return EINVAL; 1625 1626 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1627 return EIO; 1628 1629 if (mcd_getqchan(unit, &q) < 0) 1630 return EIO; 1631 1632 data.header.audio_status = cd->audio_status; 1633 data.what.position.data_format = sc->data_format; 1634 1635 switch (sc->data_format) { 1636 case CD_MEDIA_CATALOG: 1637 data.what.media_catalog.mc_valid = 1; 1638 data.what.media_catalog.mc_number[0] = '\0'; 1639 break; 1640 1641 case CD_CURRENT_POSITION: 1642 data.what.position.control = q.control; 1643 data.what.position.addr_type = q.addr_type; 1644 data.what.position.track_number = bcd2bin(q.trk_no); 1645 data.what.position.index_number = bcd2bin(q.idx_no); 1646 switch (sc->address_format) { 1647 case CD_MSF_FORMAT: 1648 data.what.position.reladdr.msf.unused = 0; 1649 data.what.position.reladdr.msf.minute = bcd2bin(q.trk_size_msf[0]); 1650 data.what.position.reladdr.msf.second = bcd2bin(q.trk_size_msf[1]); 1651 data.what.position.reladdr.msf.frame = bcd2bin(q.trk_size_msf[2]); 1652 data.what.position.absaddr.msf.unused = 0; 1653 data.what.position.absaddr.msf.minute = bcd2bin(q.hd_pos_msf[0]); 1654 data.what.position.absaddr.msf.second = bcd2bin(q.hd_pos_msf[1]); 1655 data.what.position.absaddr.msf.frame = bcd2bin(q.hd_pos_msf[2]); 1656 break; 1657 case CD_LBA_FORMAT: 1658 lba = msf2hsg(q.trk_size_msf, 1); 1659 /* 1660 * Pre-gap has index number of 0, and decreasing MSF 1661 * address. Must be converted to negative LBA, per 1662 * SCSI spec. 1663 */ 1664 if (data.what.position.index_number == 0) 1665 lba = -lba; 1666 data.what.position.reladdr.lba = htonl(lba); 1667 data.what.position.absaddr.lba = htonl(msf2hsg(q.hd_pos_msf, 0)); 1668 break; 1669 } 1670 break; 1671 } 1672 1673 return copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len)); 1674 } 1675 1676 static int 1677 mcd_playmsf(int unit, struct ioc_play_msf *p) 1678 { 1679 struct mcd_data *cd = mcd_data + unit; 1680 struct mcd_read2 pb; 1681 1682 if (cd->debug) 1683 printf("mcd%d: playmsf: from %d:%d.%d to %d:%d.%d\n", 1684 unit, 1685 p->start_m, p->start_s, p->start_f, 1686 p->end_m, p->end_s, p->end_f); 1687 1688 if ((p->start_m * 60 * 75 + p->start_s * 75 + p->start_f) >= 1689 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) || 1690 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) > 1691 M_msf(cd->volinfo.vol_msf) * 60 * 75 + 1692 S_msf(cd->volinfo.vol_msf) * 75 + 1693 F_msf(cd->volinfo.vol_msf)) 1694 return EINVAL; 1695 1696 pb.start_msf[0] = bin2bcd(p->start_m); 1697 pb.start_msf[1] = bin2bcd(p->start_s); 1698 pb.start_msf[2] = bin2bcd(p->start_f); 1699 pb.end_msf[0] = bin2bcd(p->end_m); 1700 pb.end_msf[1] = bin2bcd(p->end_s); 1701 pb.end_msf[2] = bin2bcd(p->end_f); 1702 1703 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1704 return EIO; 1705 1706 return mcd_play(unit, &pb); 1707 } 1708 1709 static int 1710 mcd_playtracks(int unit, struct ioc_play_track *pt) 1711 { 1712 struct mcd_data *cd = mcd_data + unit; 1713 struct mcd_read2 pb; 1714 int a = pt->start_track; 1715 int z = pt->end_track; 1716 int rc, i; 1717 1718 if ((rc = mcd_read_toc(unit)) != 0) 1719 return rc; 1720 1721 if (cd->debug) 1722 printf("mcd%d: playtracks from %d:%d to %d:%d\n", unit, 1723 a, pt->start_index, z, pt->end_index); 1724 1725 if ( a < bcd2bin(cd->volinfo.trk_low) 1726 || a > bcd2bin(cd->volinfo.trk_high) 1727 || a > z 1728 || z < bcd2bin(cd->volinfo.trk_low) 1729 || z > bcd2bin(cd->volinfo.trk_high)) 1730 return EINVAL; 1731 1732 for (i = 0; i < 3; i++) { 1733 pb.start_msf[i] = cd->toc[a].hd_pos_msf[i]; 1734 pb.end_msf[i] = cd->toc[z+1].hd_pos_msf[i]; 1735 } 1736 1737 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1738 return EIO; 1739 1740 return mcd_play(unit, &pb); 1741 } 1742 1743 static int 1744 mcd_playblocks(int unit, struct ioc_play_blocks *p) 1745 { 1746 struct mcd_data *cd = mcd_data + unit; 1747 struct mcd_read2 pb; 1748 1749 if (cd->debug) 1750 printf("mcd%d: playblocks: blkno %d length %d\n", 1751 unit, p->blk, p->len); 1752 1753 if (p->blk > cd->disksize || p->len > cd->disksize || 1754 p->blk < 0 || p->len < 0 || 1755 (p->blk + p->len) > cd->disksize) 1756 return EINVAL; 1757 1758 hsg2msf(p->blk, pb.start_msf); 1759 hsg2msf(p->blk + p->len, pb.end_msf); 1760 1761 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1762 return EIO; 1763 1764 return mcd_play(unit, &pb); 1765 } 1766 1767 static int 1768 mcd_play(int unit, struct mcd_read2 *pb) 1769 { 1770 struct mcd_data *cd = mcd_data + unit; 1771 int com_port = cd->iobase + mcd_command; 1772 int retry, st = -1, status; 1773 1774 cd->lastpb = *pb; 1775 for(retry=0; retry<MCD_RETRYS; retry++) { 1776 1777 disable_intr(); 1778 outb(com_port, MCD_CMDSINGLESPEEDREAD); 1779 outb(com_port, pb->start_msf[0]); 1780 outb(com_port, pb->start_msf[1]); 1781 outb(com_port, pb->start_msf[2]); 1782 outb(com_port, pb->end_msf[0]); 1783 outb(com_port, pb->end_msf[1]); 1784 outb(com_port, pb->end_msf[2]); 1785 enable_intr(); 1786 1787 status=mcd_getstat(unit, 0); 1788 if (status == -1) 1789 continue; 1790 else if (status != -2) 1791 st = 0; 1792 break; 1793 } 1794 1795 if (status == -2) { 1796 printf("mcd%d: media changed\n", unit); 1797 return ENXIO; 1798 } 1799 if (cd->debug) 1800 printf("mcd%d: mcd_play retry=%d, status=0x%02x\n", unit, retry, status); 1801 if (st < 0) 1802 return ENXIO; 1803 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 1804 return 0; 1805 } 1806 1807 static int 1808 mcd_pause(int unit) 1809 { 1810 struct mcd_data *cd = mcd_data + unit; 1811 struct mcd_qchninfo q; 1812 int rc; 1813 1814 /* Verify current status */ 1815 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS && 1816 cd->audio_status != CD_AS_PLAY_PAUSED) { 1817 if (cd->debug) 1818 printf("mcd%d: pause attempted when not playing, audio status %d\n", 1819 unit, cd->audio_status); 1820 return EINVAL; 1821 } 1822 1823 /* Get the current position */ 1824 if (mcd_getqchan(unit, &q) < 0) 1825 return EIO; 1826 1827 /* Copy it into lastpb */ 1828 cd->lastpb.start_msf[0] = q.hd_pos_msf[0]; 1829 cd->lastpb.start_msf[1] = q.hd_pos_msf[1]; 1830 cd->lastpb.start_msf[2] = q.hd_pos_msf[2]; 1831 1832 /* Stop playing */ 1833 if ((rc=mcd_stop(unit)) != 0) 1834 return rc; 1835 1836 /* Set the proper status and exit */ 1837 cd->audio_status = CD_AS_PLAY_PAUSED; 1838 return 0; 1839 } 1840 1841 static int 1842 mcd_resume(int unit) 1843 { 1844 struct mcd_data *cd = mcd_data + unit; 1845 1846 if (cd->audio_status != CD_AS_PLAY_PAUSED) 1847 return EINVAL; 1848 return mcd_play(unit, &cd->lastpb); 1849 } 1850 1851 1852 static mcd_devsw_installed = 0; 1853 1854 static void mcd_drvinit(void *unused) 1855 { 1856 1857 if( ! mcd_devsw_installed ) { 1858 cdevsw_add_generic(BDEV_MAJOR,CDEV_MAJOR, &mcd_cdevsw); 1859 mcd_devsw_installed = 1; 1860 } 1861 } 1862 1863 SYSINIT(mcddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,mcd_drvinit,NULL) 1864 1865 1866 #endif /* NMCD > 0 */
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