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: src/sys/i386/isa/mcd.c,v 1.83.2.2 1999/09/05 08:13:12 peter Exp $ 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 <sys/types.h> 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/conf.h> 53 #include <sys/file.h> 54 #include <sys/buf.h> 55 #include <sys/proc.h> 56 #include <sys/stat.h> 57 #include <sys/uio.h> 58 #include <sys/ioctl.h> 59 #include <sys/cdio.h> 60 #include <sys/errno.h> 61 #include <sys/dkbad.h> 62 #include <sys/disklabel.h> 63 #include <sys/kernel.h> 64 #ifdef DEVFS 65 #include <sys/devfsext.h> 66 #endif /*DEVFS*/ 67 68 #include <machine/spl.h> 69 #include <machine/clock.h> 70 71 #include <i386/i386/cons.h> 72 73 #include <i386/isa/isa_device.h> 74 #include <i386/isa/mcdreg.h> 75 76 #define MCD_TRACE(format, args...) \ 77 { \ 78 if (mcd_data[unit].debug) { \ 79 printf("mcd%d: status=0x%02x: ", \ 80 unit, mcd_data[unit].status); \ 81 printf(format, ## args); \ 82 } \ 83 } 84 85 #define mcd_part(dev) ((minor(dev)) & 7) 86 #define mcd_unit(dev) (((minor(dev)) & 0x38) >> 3) 87 #define mcd_phys(dev) (((minor(dev)) & 0x40) >> 6) 88 #define RAW_PART 2 89 90 /* flags */ 91 #define MCDVALID 0x0001 /* parameters loaded */ 92 #define MCDINIT 0x0002 /* device is init'd */ 93 #define MCDNEWMODEL 0x0004 /* device is new model */ 94 #define MCDLABEL 0x0008 /* label is read */ 95 #define MCDPROBING 0x0010 /* probing */ 96 #define MCDREADRAW 0x0020 /* read raw mode (2352 bytes) */ 97 #define MCDVOLINFO 0x0040 /* already read volinfo */ 98 #define MCDTOC 0x0080 /* already read toc */ 99 #define MCDMBXBSY 0x0100 /* local mbx is busy */ 100 101 /* status */ 102 #define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */ 103 #define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */ 104 #define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */ 105 #define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */ 106 107 /* These are apparently the different states a mitsumi can get up to */ 108 #define MCDCDABSENT 0x0030 109 #define MCDCDPRESENT 0x0020 110 #define MCDSCLOSED 0x0080 111 #define MCDSOPEN 0x00a0 112 113 #define MCD_MD_UNKNOWN (-1) 114 115 /* toc */ 116 #define MCD_MAXTOCS 104 /* from the Linux driver */ 117 #define MCD_LASTPLUS1 170 /* special toc entry */ 118 119 #define MCD_TYPE_UNKNOWN 0 120 #define MCD_TYPE_LU002S 1 121 #define MCD_TYPE_LU005S 2 122 #define MCD_TYPE_LU006S 3 123 #define MCD_TYPE_FX001 4 124 #define MCD_TYPE_FX001D 5 125 126 struct mcd_mbx { 127 short unit; 128 short port; 129 short retry; 130 short nblk; 131 int sz; 132 u_long skip; 133 struct buf *bp; 134 int p_offset; 135 short count; 136 short mode; 137 }; 138 139 static struct mcd_data { 140 short type; 141 char *name; 142 short config; 143 short flags; 144 u_char read_command; 145 short status; 146 int blksize; 147 u_long disksize; 148 int iobase; 149 struct disklabel dlabel; 150 int partflags[MAXPARTITIONS]; 151 int openflags; 152 struct mcd_volinfo volinfo; 153 struct mcd_qchninfo toc[MCD_MAXTOCS]; 154 short audio_status; 155 short curr_mode; 156 struct mcd_read2 lastpb; 157 short debug; 158 struct buf_queue_head head; /* head of buf queue */ 159 struct mcd_mbx mbx; 160 #ifdef DEVFS 161 void *ra_devfs_token; /* store the devfs handle here */ 162 void *rc_devfs_token; /* store the devfs handle here */ 163 void *a_devfs_token; /* store the devfs handle here */ 164 void *c_devfs_token; /* store the devfs handle here */ 165 #endif 166 } mcd_data[NMCD]; 167 168 /* reader state machine */ 169 #define MCD_S_BEGIN 0 170 #define MCD_S_BEGIN1 1 171 #define MCD_S_WAITSTAT 2 172 #define MCD_S_WAITMODE 3 173 #define MCD_S_WAITREAD 4 174 175 /* prototypes */ 176 static void mcd_start(int unit); 177 static int mcd_getdisklabel(int unit); 178 #ifdef NOTYET 179 static void mcd_configure(struct mcd_data *cd); 180 #endif 181 static int mcd_get(int unit, char *buf, int nmax); 182 static int mcd_setflags(int unit,struct mcd_data *cd); 183 static int mcd_getstat(int unit,int sflg); 184 static int mcd_send(int unit, int cmd,int nretrys); 185 static void hsg2msf(int hsg, bcd_t *msf); 186 static int msf2hsg(bcd_t *msf, int relative); 187 static int mcd_volinfo(int unit); 188 static int mcd_waitrdy(int port,int dly); 189 static void mcd_doread(int state, struct mcd_mbx *mbxin); 190 static void mcd_soft_reset(int unit); 191 static int mcd_hard_reset(int unit); 192 static int mcd_setmode(int unit, int mode); 193 static int mcd_getqchan(int unit, struct mcd_qchninfo *q); 194 static int mcd_subchan(int unit, struct ioc_read_subchannel *sc); 195 static int mcd_toc_header(int unit, struct ioc_toc_header *th); 196 static int mcd_read_toc(int unit); 197 static int mcd_toc_entrys(int unit, struct ioc_read_toc_entry *te); 198 static int mcd_stop(int unit); 199 static int mcd_eject(int unit); 200 static int mcd_inject(int unit); 201 static int mcd_playtracks(int unit, struct ioc_play_track *pt); 202 static int mcd_play(int unit, struct mcd_read2 *pb); 203 static int mcd_playmsf(int unit, struct ioc_play_msf *pt); 204 static int mcd_playblocks(int unit, struct ioc_play_blocks *); 205 static int mcd_pause(int unit); 206 static int mcd_resume(int unit); 207 static int mcd_lock_door(int unit, int lock); 208 static int mcd_close_tray(int unit); 209 210 static int mcd_probe(struct isa_device *dev); 211 static int mcd_attach(struct isa_device *dev); 212 struct isa_driver mcddriver = { mcd_probe, mcd_attach, "mcd" }; 213 214 static d_open_t mcdopen; 215 static d_close_t mcdclose; 216 static d_ioctl_t mcdioctl; 217 static d_psize_t mcdsize; 218 static d_strategy_t mcdstrategy; 219 220 #define CDEV_MAJOR 29 221 #define BDEV_MAJOR 7 222 static struct cdevsw mcd_cdevsw; 223 static struct bdevsw mcd_bdevsw = 224 { mcdopen, mcdclose, mcdstrategy, mcdioctl, /*7*/ 225 nodump, mcdsize, 0, "mcd", &mcd_cdevsw, -1 }; 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 cd->iobase = dev->id_iobase; 250 cd->flags |= MCDINIT; 251 mcd_soft_reset(unit); 252 bufq_init(&cd->head); 253 254 #ifdef NOTYET 255 /* wire controller for interrupts and dma */ 256 mcd_configure(cd); 257 #endif 258 /* name filled in probe */ 259 #ifdef DEVFS 260 cd->ra_devfs_token = 261 devfs_add_devswf(&mcd_cdevsw, dkmakeminor(unit, 0, 0), 262 DV_CHR, UID_ROOT, GID_OPERATOR, 0640, 263 "rmcd%da", unit); 264 cd->rc_devfs_token = 265 devfs_add_devswf(&mcd_cdevsw, dkmakeminor(unit, 0, RAW_PART), 266 DV_CHR, UID_ROOT, GID_OPERATOR, 0640, 267 "rmcd%dc", unit); 268 cd->a_devfs_token = 269 devfs_add_devswf(&mcd_bdevsw, dkmakeminor(unit, 0, 0), 270 DV_BLK, UID_ROOT, GID_OPERATOR, 0640, 271 "mcd%da", unit); 272 cd->c_devfs_token = 273 devfs_add_devswf(&mcd_bdevsw, dkmakeminor(unit, 0, RAW_PART), 274 DV_BLK, UID_ROOT, GID_OPERATOR, 0640, 275 "mcd%dc", unit); 276 #endif 277 return 1; 278 } 279 280 int mcdopen(dev_t dev, int flags, int fmt, struct proc *p) 281 { 282 int unit,part,phys,r,retry; 283 struct mcd_data *cd; 284 285 unit = mcd_unit(dev); 286 if (unit >= NMCD) 287 return ENXIO; 288 289 cd = mcd_data + unit; 290 part = mcd_part(dev); 291 phys = mcd_phys(dev); 292 293 /* not initialized*/ 294 if (!(cd->flags & MCDINIT)) 295 return ENXIO; 296 297 /* invalidated in the meantime? mark all open part's invalid */ 298 if (!(cd->flags & MCDVALID) && cd->openflags) 299 return ENXIO; 300 301 if (mcd_getstat(unit,1) == -1) 302 return EIO; 303 304 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 305 || !(cd->status & MCDDSKIN)) 306 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) { 307 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdsn1", hz/WAIT_FRAC); 308 if ((r = mcd_getstat(unit,1)) == -1) 309 return EIO; 310 if (r != -2) 311 break; 312 } 313 314 if (( (cd->status & (MCDDOOROPEN|MCDDSKCHNG)) 315 || !(cd->status & MCDDSKIN) 316 ) 317 && major(dev) == CDEV_MAJOR && part == RAW_PART 318 ) { 319 cd->openflags |= (1<<part); 320 if (phys) 321 cd->partflags[part] |= MCDREADRAW; 322 return 0; 323 } 324 if (cd->status & MCDDOOROPEN) { 325 printf("mcd%d: door is open\n", unit); 326 return ENXIO; 327 } 328 if (!(cd->status & MCDDSKIN)) { 329 printf("mcd%d: no CD inside\n", unit); 330 return ENXIO; 331 } 332 if (cd->status & MCDDSKCHNG) { 333 printf("mcd%d: CD not sensed\n", unit); 334 return ENXIO; 335 } 336 337 if (mcdsize(dev) < 0) { 338 if (major(dev) == CDEV_MAJOR && part == RAW_PART) { 339 cd->openflags |= (1<<part); 340 if (phys) 341 cd->partflags[part] |= MCDREADRAW; 342 return 0; 343 } 344 printf("mcd%d: failed to get disk size\n",unit); 345 return ENXIO; 346 } else 347 cd->flags |= MCDVALID; 348 349 /* XXX get a default disklabel */ 350 mcd_getdisklabel(unit); 351 352 MCD_TRACE("open: partition=%d, disksize = %ld, blksize=%d\n", 353 part, cd->disksize, cd->blksize); 354 355 if (part == RAW_PART || 356 (part < cd->dlabel.d_npartitions && 357 cd->dlabel.d_partitions[part].p_fstype != FS_UNUSED)) { 358 cd->openflags |= (1<<part); 359 if (part == RAW_PART && phys) 360 cd->partflags[part] |= MCDREADRAW; 361 (void) mcd_lock_door(unit, MCD_LK_LOCK); 362 if (!(cd->flags & MCDVALID)) 363 return ENXIO; 364 return 0; 365 } 366 367 return ENXIO; 368 } 369 370 int mcdclose(dev_t dev, int flags, int fmt, struct proc *p) 371 { 372 int unit,part; 373 struct mcd_data *cd; 374 375 unit = mcd_unit(dev); 376 if (unit >= NMCD) 377 return ENXIO; 378 379 cd = mcd_data + unit; 380 part = mcd_part(dev); 381 382 if (!(cd->flags & MCDINIT) || !(cd->openflags & (1<<part))) 383 return ENXIO; 384 385 MCD_TRACE("close: partition=%d\n", part); 386 387 (void) mcd_lock_door(unit, MCD_LK_UNLOCK); 388 cd->openflags &= ~(1<<part); 389 cd->partflags[part] &= ~MCDREADRAW; 390 391 return 0; 392 } 393 394 void 395 mcdstrategy(struct buf *bp) 396 { 397 struct mcd_data *cd; 398 int s; 399 400 int unit = mcd_unit(bp->b_dev); 401 402 cd = mcd_data + unit; 403 404 /* test validity */ 405 /*MCD_TRACE("strategy: buf=0x%lx, unit=%ld, block#=%ld bcount=%ld\n", 406 bp,unit,bp->b_blkno,bp->b_bcount);*/ 407 if (unit >= NMCD || bp->b_blkno < 0) { 408 printf("mcdstrategy: unit = %d, blkno = %ld, bcount = %ld\n", 409 unit, bp->b_blkno, bp->b_bcount); 410 printf("mcd: mcdstratregy failure"); 411 bp->b_error = EINVAL; 412 bp->b_flags |= B_ERROR; 413 goto bad; 414 } 415 416 /* if device invalidated (e.g. media change, door open), error */ 417 if (!(cd->flags & MCDVALID)) { 418 MCD_TRACE("strategy: drive not valid\n"); 419 bp->b_error = EIO; 420 goto bad; 421 } 422 423 /* read only */ 424 if (!(bp->b_flags & B_READ)) { 425 bp->b_error = EROFS; 426 goto bad; 427 } 428 429 /* no data to read */ 430 if (bp->b_bcount == 0) 431 goto done; 432 433 /* for non raw access, check partition limits */ 434 if (mcd_part(bp->b_dev) != RAW_PART) { 435 if (!(cd->flags & MCDLABEL)) { 436 bp->b_error = EIO; 437 goto bad; 438 } 439 /* adjust transfer if necessary */ 440 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) { 441 goto done; 442 } 443 } else { 444 bp->b_pblkno = bp->b_blkno; 445 bp->b_resid = 0; 446 } 447 448 /* queue it */ 449 s = splbio(); 450 bufqdisksort(&cd->head, bp); 451 splx(s); 452 453 /* now check whether we can perform processing */ 454 mcd_start(unit); 455 return; 456 457 bad: 458 bp->b_flags |= B_ERROR; 459 done: 460 bp->b_resid = bp->b_bcount; 461 biodone(bp); 462 return; 463 } 464 465 static void mcd_start(int unit) 466 { 467 struct mcd_data *cd = mcd_data + unit; 468 struct partition *p; 469 struct buf *bp; 470 register s = splbio(); 471 472 if (cd->flags & MCDMBXBSY) { 473 splx(s); 474 return; 475 } 476 477 bp = bufq_first(&cd->head); 478 if (bp != 0) { 479 /* block found to process, dequeue */ 480 /*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/ 481 bufq_remove(&cd->head, bp); 482 splx(s); 483 } else { 484 /* nothing to do */ 485 splx(s); 486 return; 487 } 488 489 /* changed media? */ 490 if (!(cd->flags & MCDVALID)) { 491 MCD_TRACE("mcd_start: drive not valid\n"); 492 return; 493 } 494 495 p = cd->dlabel.d_partitions + mcd_part(bp->b_dev); 496 497 cd->flags |= MCDMBXBSY; 498 if (cd->partflags[mcd_part(bp->b_dev)] & MCDREADRAW) 499 cd->flags |= MCDREADRAW; 500 cd->mbx.unit = unit; 501 cd->mbx.port = cd->iobase; 502 cd->mbx.retry = MCD_RETRYS; 503 cd->mbx.bp = bp; 504 cd->mbx.p_offset = p->p_offset; 505 506 /* calling the read routine */ 507 mcd_doread(MCD_S_BEGIN,&(cd->mbx)); 508 /* triggers mcd_start, when successful finished */ 509 return; 510 } 511 512 int mcdioctl(dev_t dev, int cmd, caddr_t addr, int flags, struct proc *p) 513 { 514 struct mcd_data *cd; 515 int unit,part,retry,r; 516 517 unit = mcd_unit(dev); 518 part = mcd_part(dev); 519 cd = mcd_data + unit; 520 521 if (mcd_getstat(unit, 1) == -1) /* detect disk change too */ 522 return EIO; 523 MCD_TRACE("ioctl called 0x%x\n", cmd); 524 525 switch (cmd) { 526 case CDIOCSETPATCH: 527 case CDIOCGETVOL: 528 case CDIOCSETVOL: 529 case CDIOCSETMONO: 530 case CDIOCSETSTERIO: 531 case CDIOCSETMUTE: 532 case CDIOCSETLEFT: 533 case CDIOCSETRIGHT: 534 return EINVAL; 535 case CDIOCEJECT: 536 return mcd_eject(unit); 537 case CDIOCSETDEBUG: 538 cd->debug = 1; 539 return 0; 540 case CDIOCCLRDEBUG: 541 cd->debug = 0; 542 return 0; 543 case CDIOCRESET: 544 return mcd_hard_reset(unit); 545 case CDIOCALLOW: 546 return mcd_lock_door(unit, MCD_LK_UNLOCK); 547 case CDIOCPREVENT: 548 return mcd_lock_door(unit, MCD_LK_LOCK); 549 case CDIOCCLOSE: 550 return mcd_inject(unit); 551 } 552 553 if (!(cd->flags & MCDVALID)) { 554 if ( major(dev) != CDEV_MAJOR 555 || part != RAW_PART 556 || !(cd->openflags & (1<<RAW_PART)) 557 ) 558 return ENXIO; 559 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 560 || !(cd->status & MCDDSKIN)) 561 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) { 562 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdsn2", hz/WAIT_FRAC); 563 if ((r = mcd_getstat(unit,1)) == -1) 564 return EIO; 565 if (r != -2) 566 break; 567 } 568 if ( (cd->status & (MCDDOOROPEN|MCDDSKCHNG)) 569 || !(cd->status & MCDDSKIN) 570 || mcdsize(dev) < 0 571 ) 572 return ENXIO; 573 cd->flags |= MCDVALID; 574 mcd_getdisklabel(unit); 575 if (mcd_phys(dev)) 576 cd->partflags[part] |= MCDREADRAW; 577 (void) mcd_lock_door(unit, MCD_LK_LOCK); 578 if (!(cd->flags & MCDVALID)) 579 return ENXIO; 580 } 581 582 switch (cmd) { 583 case DIOCSBAD: 584 return EINVAL; 585 case DIOCGDINFO: 586 *(struct disklabel *) addr = cd->dlabel; 587 return 0; 588 case DIOCGPART: 589 ((struct partinfo *) addr)->disklab = &cd->dlabel; 590 ((struct partinfo *) addr)->part = 591 &cd->dlabel.d_partitions[mcd_part(dev)]; 592 return 0; 593 594 /* 595 * a bit silly, but someone might want to test something on a 596 * section of cdrom. 597 */ 598 case DIOCWDINFO: 599 case DIOCSDINFO: 600 if ((flags & FWRITE) == 0) 601 return EBADF; 602 else { 603 return setdisklabel(&cd->dlabel, 604 (struct disklabel *) addr, 605 0); 606 } 607 case DIOCWLABEL: 608 return EBADF; 609 case CDIOCPLAYTRACKS: 610 return mcd_playtracks(unit, (struct ioc_play_track *) addr); 611 case CDIOCPLAYBLOCKS: 612 return mcd_playblocks(unit, (struct ioc_play_blocks *) addr); 613 case CDIOCPLAYMSF: 614 return mcd_playmsf(unit, (struct ioc_play_msf *) addr); 615 case CDIOCREADSUBCHANNEL: 616 return mcd_subchan(unit, (struct ioc_read_subchannel *) addr); 617 case CDIOREADTOCHEADER: 618 return mcd_toc_header(unit, (struct ioc_toc_header *) addr); 619 case CDIOREADTOCENTRYS: 620 return mcd_toc_entrys(unit, (struct ioc_read_toc_entry *) addr); 621 case CDIOCRESUME: 622 return mcd_resume(unit); 623 case CDIOCPAUSE: 624 return mcd_pause(unit); 625 case CDIOCSTART: 626 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 627 return EIO; 628 return 0; 629 case CDIOCSTOP: 630 return mcd_stop(unit); 631 default: 632 return ENOTTY; 633 } 634 /*NOTREACHED*/ 635 } 636 637 /* this could have been taken from scsi/cd.c, but it is not clear 638 * whether the scsi cd driver is linked in 639 */ 640 static int mcd_getdisklabel(int unit) 641 { 642 struct mcd_data *cd = mcd_data + unit; 643 644 if (cd->flags & MCDLABEL) 645 return -1; 646 647 bzero(&cd->dlabel,sizeof(struct disklabel)); 648 /* filled with spaces first */ 649 strncpy(cd->dlabel.d_typename," ", 650 sizeof(cd->dlabel.d_typename)); 651 strncpy(cd->dlabel.d_typename, cd->name, 652 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); 653 strncpy(cd->dlabel.d_packname,"unknown ", 654 sizeof(cd->dlabel.d_packname)); 655 cd->dlabel.d_secsize = cd->blksize; 656 cd->dlabel.d_nsectors = 100; 657 cd->dlabel.d_ntracks = 1; 658 cd->dlabel.d_ncylinders = (cd->disksize/100)+1; 659 cd->dlabel.d_secpercyl = 100; 660 cd->dlabel.d_secperunit = cd->disksize; 661 cd->dlabel.d_rpm = 300; 662 cd->dlabel.d_interleave = 1; 663 cd->dlabel.d_flags = D_REMOVABLE; 664 cd->dlabel.d_npartitions= 1; 665 cd->dlabel.d_partitions[0].p_offset = 0; 666 cd->dlabel.d_partitions[0].p_size = cd->disksize; 667 cd->dlabel.d_partitions[0].p_fstype = 9; 668 cd->dlabel.d_magic = DISKMAGIC; 669 cd->dlabel.d_magic2 = DISKMAGIC; 670 cd->dlabel.d_checksum = dkcksum(&cd->dlabel); 671 672 cd->flags |= MCDLABEL; 673 return 0; 674 } 675 676 int mcdsize(dev_t dev) 677 { 678 int size; 679 int unit = mcd_unit(dev); 680 struct mcd_data *cd = mcd_data + unit; 681 682 if (mcd_volinfo(unit) == 0) { 683 cd->blksize = MCDBLK; 684 size = msf2hsg(cd->volinfo.vol_msf, 0); 685 cd->disksize = size * (MCDBLK/DEV_BSIZE); 686 return 0; 687 } 688 return -1; 689 } 690 691 /*************************************************************** 692 * lower level of driver starts here 693 **************************************************************/ 694 695 #ifdef NOTDEF 696 static char 697 irqs[] = { 698 0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00, 699 0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00 700 }; 701 702 static char 703 drqs[] = { 704 0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07, 705 }; 706 #endif 707 708 #ifdef NOT_YET 709 static void 710 mcd_configure(struct mcd_data *cd) 711 { 712 outb(cd->iobase+mcd_config,cd->config); 713 } 714 #endif 715 716 /* Wait for non-busy - return 0 on timeout */ 717 static int 718 twiddle_thumbs(int port, int unit, int count, char *whine) 719 { 720 int i; 721 722 for (i = 0; i < count; i++) { 723 if (!(inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)) 724 return 1; 725 } 726 if (bootverbose) 727 printf("mcd%d: timeout %s\n", unit, whine); 728 return 0; 729 } 730 731 /* check to see if a Mitsumi CD-ROM is attached to the ISA bus */ 732 733 int 734 mcd_probe(struct isa_device *dev) 735 { 736 int port = dev->id_iobase; 737 int unit = dev->id_unit; 738 int i, j; 739 unsigned char stbytes[3]; 740 741 mcd_data[unit].flags = MCDPROBING; 742 743 #ifdef NOTDEF 744 /* get irq/drq configuration word */ 745 mcd_data[unit].config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/ 746 #else 747 mcd_data[unit].config = 0; 748 #endif 749 750 /* send a reset */ 751 outb(port+MCD_FLAGS, M_RESET); 752 753 /* 754 * delay awhile by getting any pending garbage (old data) and 755 * throwing it away. 756 */ 757 for (i = 1000000; i != 0; i--) 758 inb(port+MCD_FLAGS); 759 760 /* Get status */ 761 outb(port+MCD_DATA, MCD_CMDGETSTAT); 762 if (!twiddle_thumbs(port, unit, 1000000, "getting status")) 763 return 0; /* Timeout */ 764 /* Get version information */ 765 outb(port+MCD_DATA, MCD_CMDCONTINFO); 766 for (j = 0; j < 3; j++) { 767 if (!twiddle_thumbs(port, unit, 3000, "getting version info")) 768 return 0; 769 stbytes[j] = (inb(port+MCD_DATA) & 0xFF); 770 } 771 if (stbytes[1] == stbytes[2]) 772 return 0; 773 if (stbytes[2] >= 4 || stbytes[1] != 'M') { 774 outb(port+MCD_CTRL, M_PICKLE); 775 mcd_data[unit].flags |= MCDNEWMODEL; 776 } 777 mcd_data[unit].read_command = MCD_CMDSINGLESPEEDREAD; 778 switch (stbytes[1]) { 779 case 'M': 780 if (stbytes[2] <= 2) { 781 mcd_data[unit].type = MCD_TYPE_LU002S; 782 mcd_data[unit].name = "Mitsumi LU002S"; 783 } else if (stbytes[2] <= 5) { 784 mcd_data[unit].type = MCD_TYPE_LU005S; 785 mcd_data[unit].name = "Mitsumi LU005S"; 786 } else { 787 mcd_data[unit].type = MCD_TYPE_LU006S; 788 mcd_data[unit].name = "Mitsumi LU006S"; 789 } 790 break; 791 case 'F': 792 mcd_data[unit].type = MCD_TYPE_FX001; 793 mcd_data[unit].name = "Mitsumi FX001"; 794 break; 795 case 'D': 796 mcd_data[unit].type = MCD_TYPE_FX001D; 797 mcd_data[unit].name = "Mitsumi FX001D"; 798 mcd_data[unit].read_command = MCD_CMDDOUBLESPEEDREAD; 799 break; 800 default: 801 mcd_data[unit].type = MCD_TYPE_UNKNOWN; 802 mcd_data[unit].name = "Mitsumi ???"; 803 break; 804 } 805 printf("mcd%d: type %s, version info: %c %x\n", unit, mcd_data[unit].name, 806 stbytes[1], stbytes[2]); 807 808 return 4; 809 } 810 811 812 static int 813 mcd_waitrdy(int port,int dly) 814 { 815 int i; 816 817 /* wait until flag port senses status ready */ 818 for (i=0; i<dly; i+=MIN_DELAY) { 819 if (!(inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)) 820 return 0; 821 DELAY(MIN_DELAY); 822 } 823 return -1; 824 } 825 826 static int 827 mcd_getreply(int unit,int dly) 828 { 829 struct mcd_data *cd = mcd_data + unit; 830 int port = cd->iobase; 831 832 /* wait data to become ready */ 833 if (mcd_waitrdy(port,dly)<0) { 834 printf("mcd%d: timeout getreply\n",unit); 835 return -1; 836 } 837 838 /* get the data */ 839 return inb(port+mcd_status) & 0xFF; 840 } 841 842 static int 843 mcd_getstat(int unit,int sflg) 844 { 845 int i; 846 struct mcd_data *cd = mcd_data + unit; 847 int port = cd->iobase; 848 849 /* get the status */ 850 if (sflg) 851 outb(port+mcd_command, MCD_CMDGETSTAT); 852 i = mcd_getreply(unit,DELAY_GETREPLY); 853 if (i<0 || (i & MCD_ST_CMDCHECK)) { 854 cd->curr_mode = MCD_MD_UNKNOWN; 855 return -1; 856 } 857 858 cd->status = i; 859 860 if (mcd_setflags(unit,cd) < 0) 861 return -2; 862 return cd->status; 863 } 864 865 static int 866 mcd_setflags(int unit, struct mcd_data *cd) 867 { 868 /* check flags */ 869 if ( (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) 870 || !(cd->status & MCDDSKIN)) { 871 MCD_TRACE("setflags: sensed DSKCHNG or DOOROPEN or !DSKIN\n"); 872 mcd_soft_reset(unit); 873 return -1; 874 } 875 876 if (cd->status & MCDAUDIOBSY) 877 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 878 else if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) 879 cd->audio_status = CD_AS_PLAY_COMPLETED; 880 return 0; 881 } 882 883 static int 884 mcd_get(int unit, char *buf, int nmax) 885 { 886 int i,k; 887 888 for (i=0; i<nmax; i++) { 889 /* wait for data */ 890 if ((k = mcd_getreply(unit,DELAY_GETREPLY)) < 0) { 891 printf("mcd%d: timeout mcd_get\n",unit); 892 return -1; 893 } 894 buf[i] = k; 895 } 896 return i; 897 } 898 899 static int 900 mcd_send(int unit, int cmd,int nretrys) 901 { 902 int i,k=0; 903 int port = mcd_data[unit].iobase; 904 905 /*MCD_TRACE("mcd_send: command = 0x%02x\n",cmd,0,0,0);*/ 906 for (i=0; i<nretrys; i++) { 907 outb(port+mcd_command, cmd); 908 if ((k=mcd_getstat(unit,0)) != -1) 909 break; 910 } 911 if (k == -2) { 912 printf("mcd%d: media changed\n",unit); 913 return -1; 914 } 915 if (i == nretrys) { 916 printf("mcd%d: mcd_send retry cnt exceeded\n",unit); 917 return -1; 918 } 919 /*MCD_TRACE("mcd_send: done\n",0,0,0,0);*/ 920 return 0; 921 } 922 923 static void 924 hsg2msf(int hsg, bcd_t *msf) 925 { 926 hsg += 150; 927 F_msf(msf) = bin2bcd(hsg % 75); 928 hsg /= 75; 929 S_msf(msf) = bin2bcd(hsg % 60); 930 hsg /= 60; 931 M_msf(msf) = bin2bcd(hsg); 932 } 933 934 static int 935 msf2hsg(bcd_t *msf, int relative) 936 { 937 return (bcd2bin(M_msf(msf)) * 60 + bcd2bin(S_msf(msf))) * 75 + 938 bcd2bin(F_msf(msf)) - (!relative) * 150; 939 } 940 941 static int 942 mcd_volinfo(int unit) 943 { 944 struct mcd_data *cd = mcd_data + unit; 945 946 /* Just return if we already have it */ 947 if (cd->flags & MCDVOLINFO) return 0; 948 949 /*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/ 950 951 /* send volume info command */ 952 if (mcd_send(unit,MCD_CMDGETVOLINFO,MCD_RETRYS) < 0) 953 return EIO; 954 955 /* get data */ 956 if (mcd_get(unit,(char*) &cd->volinfo,sizeof(struct mcd_volinfo)) < 0) { 957 printf("mcd%d: mcd_volinfo: error read data\n",unit); 958 return EIO; 959 } 960 961 if (cd->volinfo.trk_low > 0 && 962 cd->volinfo.trk_high >= cd->volinfo.trk_low 963 ) { 964 cd->flags |= MCDVOLINFO; /* volinfo is OK */ 965 return 0; 966 } 967 968 return EINVAL; 969 } 970 971 void 972 mcdintr(unit) 973 int unit; 974 { 975 MCD_TRACE("stray interrupt\n"); 976 } 977 978 /* state machine to process read requests 979 * initialize with MCD_S_BEGIN: calculate sizes, and read status 980 * MCD_S_WAITSTAT: wait for status reply, set mode 981 * MCD_S_WAITMODE: waits for status reply from set mode, set read command 982 * MCD_S_WAITREAD: wait for read ready, read data 983 */ 984 static struct mcd_mbx *mbxsave; 985 986 static void 987 mcd_doread(int state, struct mcd_mbx *mbxin) 988 { 989 struct mcd_mbx *mbx = (state!=MCD_S_BEGIN) ? mbxsave : mbxin; 990 int unit = mbx->unit; 991 int port = mbx->port; 992 int com_port = mbx->port + mcd_command; 993 int data_port = mbx->port + mcd_rdata; 994 struct buf *bp = mbx->bp; 995 struct mcd_data *cd = mcd_data + unit; 996 997 int rm,i,k; 998 struct mcd_read2 rbuf; 999 int blknum; 1000 caddr_t addr; 1001 1002 loop: 1003 switch (state) { 1004 case MCD_S_BEGIN: 1005 mbx = mbxsave = mbxin; 1006 1007 case MCD_S_BEGIN1: 1008 retry_status: 1009 /* get status */ 1010 outb(com_port, MCD_CMDGETSTAT); 1011 mbx->count = RDELAY_WAITSTAT; 1012 timeout((timeout_func_t)mcd_doread, 1013 (caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */ 1014 return; 1015 case MCD_S_WAITSTAT: 1016 untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITSTAT); 1017 if (mbx->count-- >= 0) { 1018 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) { 1019 timeout((timeout_func_t)mcd_doread, 1020 (caddr_t)MCD_S_WAITSTAT,hz/100); /* XXX */ 1021 return; 1022 } 1023 cd->status = inb(port+mcd_status) & 0xFF; 1024 if (cd->status & MCD_ST_CMDCHECK) 1025 goto retry_status; 1026 if (mcd_setflags(unit,cd) < 0) 1027 goto changed; 1028 MCD_TRACE("got WAITSTAT delay=%d\n", 1029 RDELAY_WAITSTAT-mbx->count); 1030 /* reject, if audio active */ 1031 if (cd->status & MCDAUDIOBSY) { 1032 printf("mcd%d: audio is active\n",unit); 1033 goto readerr; 1034 } 1035 1036 retry_mode: 1037 /* to check for raw/cooked mode */ 1038 if (cd->flags & MCDREADRAW) { 1039 rm = MCD_MD_RAW; 1040 mbx->sz = MCDRBLK; 1041 } else { 1042 rm = MCD_MD_COOKED; 1043 mbx->sz = cd->blksize; 1044 } 1045 1046 if (rm == cd->curr_mode) 1047 goto modedone; 1048 1049 mbx->count = RDELAY_WAITMODE; 1050 1051 cd->curr_mode = MCD_MD_UNKNOWN; 1052 mbx->mode = rm; 1053 mcd_put(com_port, MCD_CMDSETMODE); 1054 mcd_put(com_port, rm); 1055 1056 timeout((timeout_func_t)mcd_doread, 1057 (caddr_t)MCD_S_WAITMODE,hz/100); /* XXX */ 1058 return; 1059 } else { 1060 printf("mcd%d: timeout getstatus\n",unit); 1061 goto readerr; 1062 } 1063 1064 case MCD_S_WAITMODE: 1065 untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITMODE); 1066 if (mbx->count-- < 0) { 1067 printf("mcd%d: timeout set mode\n",unit); 1068 goto readerr; 1069 } 1070 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) { 1071 timeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITMODE,hz/100); 1072 return; 1073 } 1074 cd->status = inb(port+mcd_status) & 0xFF; 1075 if (cd->status & MCD_ST_CMDCHECK) { 1076 cd->curr_mode = MCD_MD_UNKNOWN; 1077 goto retry_mode; 1078 } 1079 if (mcd_setflags(unit,cd) < 0) 1080 goto changed; 1081 cd->curr_mode = mbx->mode; 1082 MCD_TRACE("got WAITMODE delay=%d\n", 1083 RDELAY_WAITMODE-mbx->count); 1084 modedone: 1085 /* for first block */ 1086 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; 1087 mbx->skip = 0; 1088 1089 nextblock: 1090 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) 1091 + mbx->p_offset + mbx->skip/mbx->sz; 1092 1093 MCD_TRACE("mcd_doread: read blknum=%d for bp=%p\n", 1094 blknum, bp); 1095 1096 /* build parameter block */ 1097 hsg2msf(blknum,rbuf.start_msf); 1098 retry_read: 1099 /* send the read command */ 1100 disable_intr(); 1101 mcd_put(com_port,cd->read_command); 1102 mcd_put(com_port,rbuf.start_msf[0]); 1103 mcd_put(com_port,rbuf.start_msf[1]); 1104 mcd_put(com_port,rbuf.start_msf[2]); 1105 mcd_put(com_port,0); 1106 mcd_put(com_port,0); 1107 mcd_put(com_port,1); 1108 enable_intr(); 1109 1110 /* Spin briefly (<= 2ms) to avoid missing next block */ 1111 for (i = 0; i < 20; i++) { 1112 k = inb(port+MCD_FLAGS); 1113 if (!(k & MFL_DATA_NOT_AVAIL)) 1114 goto got_it; 1115 DELAY(100); 1116 } 1117 1118 mbx->count = RDELAY_WAITREAD; 1119 timeout((timeout_func_t)mcd_doread, 1120 (caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */ 1121 return; 1122 case MCD_S_WAITREAD: 1123 untimeout((timeout_func_t)mcd_doread,(caddr_t)MCD_S_WAITREAD); 1124 if (mbx->count-- > 0) { 1125 k = inb(port+MCD_FLAGS); 1126 if (!(k & MFL_DATA_NOT_AVAIL)) { /* XXX */ 1127 MCD_TRACE("got data delay=%d\n", 1128 RDELAY_WAITREAD-mbx->count); 1129 got_it: 1130 /* data is ready */ 1131 addr = bp->b_un.b_addr + mbx->skip; 1132 1133 outb(port+mcd_ctl2,0x04); /* XXX */ 1134 for (i=0; i<mbx->sz; i++) 1135 *addr++ = inb(data_port); 1136 outb(port+mcd_ctl2,0x0c); /* XXX */ 1137 1138 k = inb(port+MCD_FLAGS); 1139 /* If we still have some junk, read it too */ 1140 if (!(k & MFL_DATA_NOT_AVAIL)) { 1141 outb(port+mcd_ctl2,0x04); /* XXX */ 1142 (void)inb(data_port); 1143 (void)inb(data_port); 1144 outb(port+mcd_ctl2,0x0c); /* XXX */ 1145 } 1146 1147 if (--mbx->nblk > 0) { 1148 mbx->skip += mbx->sz; 1149 goto nextblock; 1150 } 1151 1152 /* return buffer */ 1153 bp->b_resid = 0; 1154 biodone(bp); 1155 1156 cd->flags &= ~(MCDMBXBSY|MCDREADRAW); 1157 mcd_start(mbx->unit); 1158 return; 1159 } 1160 if (!(k & MFL_STATUS_NOT_AVAIL)) { 1161 cd->status = inb(port+mcd_status) & 0xFF; 1162 if (cd->status & MCD_ST_CMDCHECK) 1163 goto retry_read; 1164 if (mcd_setflags(unit,cd) < 0) 1165 goto changed; 1166 } 1167 timeout((timeout_func_t)mcd_doread, 1168 (caddr_t)MCD_S_WAITREAD,hz/100); /* XXX */ 1169 return; 1170 } else { 1171 printf("mcd%d: timeout read data\n",unit); 1172 goto readerr; 1173 } 1174 } 1175 1176 readerr: 1177 if (mbx->retry-- > 0) { 1178 printf("mcd%d: retrying\n",unit); 1179 state = MCD_S_BEGIN1; 1180 goto loop; 1181 } 1182 harderr: 1183 /* invalidate the buffer */ 1184 bp->b_flags |= B_ERROR; 1185 bp->b_resid = bp->b_bcount; 1186 biodone(bp); 1187 1188 cd->flags &= ~(MCDMBXBSY|MCDREADRAW); 1189 mcd_start(mbx->unit); 1190 return; 1191 1192 changed: 1193 printf("mcd%d: media changed\n", unit); 1194 goto harderr; 1195 1196 #ifdef NOTDEF 1197 printf("mcd%d: unit timeout, resetting\n",mbx->unit); 1198 outb(mbx->port+mcd_reset,MCD_CMDRESET); 1199 DELAY(300000); 1200 (void)mcd_getstat(mbx->unit,1); 1201 (void)mcd_getstat(mbx->unit,1); 1202 /*cd->status &= ~MCDDSKCHNG; */ 1203 cd->debug = 1; /* preventive set debug mode */ 1204 1205 #endif 1206 1207 } 1208 1209 static int 1210 mcd_lock_door(int unit, int lock) 1211 { 1212 struct mcd_data *cd = mcd_data + unit; 1213 int port = cd->iobase; 1214 1215 outb(port+mcd_command, MCD_CMDLOCKDRV); 1216 outb(port+mcd_command, lock); 1217 if (mcd_getstat(unit,0) == -1) 1218 return EIO; 1219 return 0; 1220 } 1221 1222 static int 1223 mcd_close_tray(int unit) 1224 { 1225 struct mcd_data *cd = mcd_data + unit; 1226 int port = cd->iobase; 1227 int retry, r; 1228 1229 if (mcd_getstat(unit,1) == -1) 1230 return EIO; 1231 if (cd->status & MCDDOOROPEN) { 1232 outb(port+mcd_command, MCD_CMDCLOSETRAY); 1233 for (retry = 0; retry < CLOSE_TRAY_SECS * WAIT_FRAC; retry++) { 1234 if (inb(port+MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) 1235 (void) tsleep((caddr_t)cd, PSOCK | PCATCH, "mcdcls", hz/WAIT_FRAC); 1236 else { 1237 if ((r = mcd_getstat(unit,0)) == -1) 1238 return EIO; 1239 return 0; 1240 } 1241 } 1242 return ENXIO; 1243 } 1244 return 0; 1245 } 1246 1247 static int 1248 mcd_eject(int unit) 1249 { 1250 struct mcd_data *cd = mcd_data + unit; 1251 int port = cd->iobase, r; 1252 1253 if (mcd_getstat(unit,1) == -1) /* detect disk change too */ 1254 return EIO; 1255 if (cd->status & MCDDOOROPEN) 1256 return 0; 1257 if ((r = mcd_stop(unit)) == EIO) 1258 return r; 1259 outb(port+mcd_command, MCD_CMDEJECTDISK); 1260 if (mcd_getstat(unit,0) == -1) 1261 return EIO; 1262 return 0; 1263 } 1264 1265 static int 1266 mcd_inject(int unit) 1267 { 1268 struct mcd_data *cd = mcd_data + unit; 1269 1270 if (mcd_getstat(unit,1) == -1) /* detect disk change too */ 1271 return EIO; 1272 if (cd->status & MCDDOOROPEN) 1273 return mcd_close_tray(unit); 1274 return 0; 1275 } 1276 1277 static int 1278 mcd_hard_reset(int unit) 1279 { 1280 struct mcd_data *cd = mcd_data + unit; 1281 int port = cd->iobase; 1282 1283 outb(port+mcd_reset,MCD_CMDRESET); 1284 cd->curr_mode = MCD_MD_UNKNOWN; 1285 cd->audio_status = CD_AS_AUDIO_INVALID; 1286 return 0; 1287 } 1288 1289 static void 1290 mcd_soft_reset(int unit) 1291 { 1292 struct mcd_data *cd = mcd_data + unit; 1293 int i; 1294 1295 cd->flags &= (MCDINIT|MCDPROBING|MCDNEWMODEL); 1296 cd->curr_mode = MCD_MD_UNKNOWN; 1297 for (i=0; i<MAXPARTITIONS; i++) cd->partflags[i] = 0; 1298 cd->audio_status = CD_AS_AUDIO_INVALID; 1299 } 1300 1301 static int 1302 mcd_setmode(int unit, int mode) 1303 { 1304 struct mcd_data *cd = mcd_data + unit; 1305 int port = cd->iobase; 1306 int retry, st; 1307 1308 if (cd->curr_mode == mode) 1309 return 0; 1310 if (cd->debug) 1311 printf("mcd%d: setting mode to %d\n", unit, mode); 1312 for(retry=0; retry<MCD_RETRYS; retry++) 1313 { 1314 cd->curr_mode = MCD_MD_UNKNOWN; 1315 outb(port+mcd_command, MCD_CMDSETMODE); 1316 outb(port+mcd_command, mode); 1317 if ((st = mcd_getstat(unit, 0)) >= 0) { 1318 cd->curr_mode = mode; 1319 return 0; 1320 } 1321 if (st == -2) { 1322 printf("mcd%d: media changed\n", unit); 1323 break; 1324 } 1325 } 1326 1327 return -1; 1328 } 1329 1330 static int 1331 mcd_toc_header(int unit, struct ioc_toc_header *th) 1332 { 1333 struct mcd_data *cd = mcd_data + unit; 1334 int r; 1335 1336 if ((r = mcd_volinfo(unit)) != 0) 1337 return r; 1338 1339 th->starting_track = bcd2bin(cd->volinfo.trk_low); 1340 th->ending_track = bcd2bin(cd->volinfo.trk_high); 1341 th->len = 2 * sizeof(u_char) /* start & end tracks */ + 1342 (th->ending_track + 1 - th->starting_track + 1) * 1343 sizeof(struct cd_toc_entry); 1344 1345 return 0; 1346 } 1347 1348 static int 1349 mcd_read_toc(int unit) 1350 { 1351 struct mcd_data *cd = mcd_data + unit; 1352 struct ioc_toc_header th; 1353 struct mcd_qchninfo q; 1354 int rc, trk, idx, retry; 1355 1356 /* Only read TOC if needed */ 1357 if (cd->flags & MCDTOC) 1358 return 0; 1359 1360 if (cd->debug) 1361 printf("mcd%d: reading toc header\n", unit); 1362 1363 if ((rc = mcd_toc_header(unit, &th)) != 0) 1364 return rc; 1365 1366 if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) 1367 return EIO; 1368 1369 if (mcd_setmode(unit, MCD_MD_TOC) != 0) 1370 return EIO; 1371 1372 if (cd->debug) 1373 printf("mcd%d: get_toc reading qchannel info\n",unit); 1374 1375 for(trk=th.starting_track; trk<=th.ending_track; trk++) 1376 cd->toc[trk].idx_no = 0; 1377 trk = th.ending_track - th.starting_track + 1; 1378 for(retry=0; retry<600 && trk>0; retry++) 1379 { 1380 if (mcd_getqchan(unit, &q) < 0) break; 1381 idx = bcd2bin(q.idx_no); 1382 if (idx>=th.starting_track && idx<=th.ending_track && q.trk_no==0) { 1383 if (cd->toc[idx].idx_no == 0) { 1384 cd->toc[idx] = q; 1385 trk--; 1386 } 1387 } 1388 } 1389 1390 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1391 return EIO; 1392 1393 if (trk != 0) 1394 return ENXIO; 1395 1396 /* add a fake last+1 */ 1397 idx = th.ending_track + 1; 1398 cd->toc[idx].control = cd->toc[idx-1].control; 1399 cd->toc[idx].addr_type = cd->toc[idx-1].addr_type; 1400 cd->toc[idx].trk_no = 0; 1401 cd->toc[idx].idx_no = MCD_LASTPLUS1; 1402 cd->toc[idx].hd_pos_msf[0] = cd->volinfo.vol_msf[0]; 1403 cd->toc[idx].hd_pos_msf[1] = cd->volinfo.vol_msf[1]; 1404 cd->toc[idx].hd_pos_msf[2] = cd->volinfo.vol_msf[2]; 1405 1406 if (cd->debug) 1407 { int i; 1408 for (i = th.starting_track; i <= idx; i++) 1409 printf("mcd%d: trk %d idx %d pos %d %d %d\n", 1410 unit, i, 1411 cd->toc[i].idx_no > 0x99 ? cd->toc[i].idx_no : 1412 bcd2bin(cd->toc[i].idx_no), 1413 bcd2bin(cd->toc[i].hd_pos_msf[0]), 1414 bcd2bin(cd->toc[i].hd_pos_msf[1]), 1415 bcd2bin(cd->toc[i].hd_pos_msf[2])); 1416 } 1417 1418 cd->flags |= MCDTOC; 1419 1420 return 0; 1421 } 1422 1423 static int 1424 mcd_toc_entrys(int unit, struct ioc_read_toc_entry *te) 1425 { 1426 struct mcd_data *cd = mcd_data + unit; 1427 struct cd_toc_entry entries[MCD_MAXTOCS]; 1428 struct ioc_toc_header th; 1429 int rc, n, trk, len; 1430 1431 if ( te->data_len < sizeof(entries[0]) 1432 || (te->data_len % sizeof(entries[0])) != 0 1433 || te->address_format != CD_MSF_FORMAT 1434 && te->address_format != CD_LBA_FORMAT 1435 ) 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->starting_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 len = ((th.ending_track + 1 - trk) + 1) * 1452 sizeof(entries[0]); 1453 if (te->data_len < len) 1454 len = te->data_len; 1455 if (len > sizeof(entries)) 1456 return EINVAL; 1457 1458 /* Make sure we have a valid toc */ 1459 if ((rc=mcd_read_toc(unit)) != 0) 1460 return rc; 1461 1462 /* Copy the TOC data. */ 1463 for (n = 0; len > 0 && trk <= th.ending_track + 1; trk++) { 1464 if (cd->toc[trk].idx_no == 0) 1465 continue; 1466 entries[n].control = cd->toc[trk].control; 1467 entries[n].addr_type = cd->toc[trk].addr_type; 1468 entries[n].track = 1469 cd->toc[trk].idx_no > 0x99 ? cd->toc[trk].idx_no : 1470 bcd2bin(cd->toc[trk].idx_no); 1471 switch (te->address_format) { 1472 case CD_MSF_FORMAT: 1473 entries[n].addr.msf.unused = 0; 1474 entries[n].addr.msf.minute = bcd2bin(cd->toc[trk].hd_pos_msf[0]); 1475 entries[n].addr.msf.second = bcd2bin(cd->toc[trk].hd_pos_msf[1]); 1476 entries[n].addr.msf.frame = bcd2bin(cd->toc[trk].hd_pos_msf[2]); 1477 break; 1478 case CD_LBA_FORMAT: 1479 entries[n].addr.lba = htonl(msf2hsg(cd->toc[trk].hd_pos_msf, 0)); 1480 break; 1481 } 1482 len -= sizeof(struct cd_toc_entry); 1483 n++; 1484 } 1485 1486 /* copy the data back */ 1487 return copyout(entries, te->data, n * sizeof(struct cd_toc_entry)); 1488 } 1489 1490 static int 1491 mcd_stop(int unit) 1492 { 1493 struct mcd_data *cd = mcd_data + unit; 1494 1495 /* Verify current status */ 1496 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS && 1497 cd->audio_status != CD_AS_PLAY_PAUSED && 1498 cd->audio_status != CD_AS_PLAY_COMPLETED) { 1499 if (cd->debug) 1500 printf("mcd%d: stop attempted when not playing, audio status %d\n", 1501 unit, cd->audio_status); 1502 return EINVAL; 1503 } 1504 if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) 1505 if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) 1506 return EIO; 1507 cd->audio_status = CD_AS_PLAY_COMPLETED; 1508 return 0; 1509 } 1510 1511 static int 1512 mcd_getqchan(int unit, struct mcd_qchninfo *q) 1513 { 1514 struct mcd_data *cd = mcd_data + unit; 1515 1516 if (mcd_send(unit, MCD_CMDGETQCHN, MCD_RETRYS) < 0) 1517 return -1; 1518 if (mcd_get(unit, (char *) q, sizeof(struct mcd_qchninfo)) < 0) 1519 return -1; 1520 if (cd->debug) { 1521 printf("mcd%d: getqchan control=0x%x addr_type=0x%x trk=%d ind=%d ttm=%d:%d.%d dtm=%d:%d.%d\n", 1522 unit, 1523 q->control, q->addr_type, bcd2bin(q->trk_no), 1524 bcd2bin(q->idx_no), 1525 bcd2bin(q->trk_size_msf[0]), bcd2bin(q->trk_size_msf[1]), 1526 bcd2bin(q->trk_size_msf[2]), 1527 bcd2bin(q->hd_pos_msf[0]), bcd2bin(q->hd_pos_msf[1]), 1528 bcd2bin(q->hd_pos_msf[2])); 1529 } 1530 return 0; 1531 } 1532 1533 static int 1534 mcd_subchan(int unit, struct ioc_read_subchannel *sc) 1535 { 1536 struct mcd_data *cd = mcd_data + unit; 1537 struct mcd_qchninfo q; 1538 struct cd_sub_channel_info data; 1539 int lba; 1540 1541 if (cd->debug) 1542 printf("mcd%d: subchan af=%d, df=%d\n", unit, 1543 sc->address_format, 1544 sc->data_format); 1545 1546 if (sc->address_format != CD_MSF_FORMAT && 1547 sc->address_format != CD_LBA_FORMAT) 1548 return EINVAL; 1549 1550 if (sc->data_format != CD_CURRENT_POSITION && 1551 sc->data_format != CD_MEDIA_CATALOG) 1552 return EINVAL; 1553 1554 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1555 return EIO; 1556 1557 if (mcd_getqchan(unit, &q) < 0) 1558 return EIO; 1559 1560 data.header.audio_status = cd->audio_status; 1561 data.what.position.data_format = sc->data_format; 1562 1563 switch (sc->data_format) { 1564 case CD_MEDIA_CATALOG: 1565 data.what.media_catalog.mc_valid = 1; 1566 data.what.media_catalog.mc_number[0] = '\0'; 1567 break; 1568 1569 case CD_CURRENT_POSITION: 1570 data.what.position.control = q.control; 1571 data.what.position.addr_type = q.addr_type; 1572 data.what.position.track_number = bcd2bin(q.trk_no); 1573 data.what.position.index_number = bcd2bin(q.idx_no); 1574 switch (sc->address_format) { 1575 case CD_MSF_FORMAT: 1576 data.what.position.reladdr.msf.unused = 0; 1577 data.what.position.reladdr.msf.minute = bcd2bin(q.trk_size_msf[0]); 1578 data.what.position.reladdr.msf.second = bcd2bin(q.trk_size_msf[1]); 1579 data.what.position.reladdr.msf.frame = bcd2bin(q.trk_size_msf[2]); 1580 data.what.position.absaddr.msf.unused = 0; 1581 data.what.position.absaddr.msf.minute = bcd2bin(q.hd_pos_msf[0]); 1582 data.what.position.absaddr.msf.second = bcd2bin(q.hd_pos_msf[1]); 1583 data.what.position.absaddr.msf.frame = bcd2bin(q.hd_pos_msf[2]); 1584 break; 1585 case CD_LBA_FORMAT: 1586 lba = msf2hsg(q.trk_size_msf, 1); 1587 /* 1588 * Pre-gap has index number of 0, and decreasing MSF 1589 * address. Must be converted to negative LBA, per 1590 * SCSI spec. 1591 */ 1592 if (data.what.position.index_number == 0) 1593 lba = -lba; 1594 data.what.position.reladdr.lba = htonl(lba); 1595 data.what.position.absaddr.lba = htonl(msf2hsg(q.hd_pos_msf, 0)); 1596 break; 1597 } 1598 break; 1599 } 1600 1601 return copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len)); 1602 } 1603 1604 static int 1605 mcd_playmsf(int unit, struct ioc_play_msf *p) 1606 { 1607 struct mcd_data *cd = mcd_data + unit; 1608 struct mcd_read2 pb; 1609 1610 if (cd->debug) 1611 printf("mcd%d: playmsf: from %d:%d.%d to %d:%d.%d\n", 1612 unit, 1613 p->start_m, p->start_s, p->start_f, 1614 p->end_m, p->end_s, p->end_f); 1615 1616 if ((p->start_m * 60 * 75 + p->start_s * 75 + p->start_f) >= 1617 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) || 1618 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) > 1619 M_msf(cd->volinfo.vol_msf) * 60 * 75 + 1620 S_msf(cd->volinfo.vol_msf) * 75 + 1621 F_msf(cd->volinfo.vol_msf)) 1622 return EINVAL; 1623 1624 pb.start_msf[0] = bin2bcd(p->start_m); 1625 pb.start_msf[1] = bin2bcd(p->start_s); 1626 pb.start_msf[2] = bin2bcd(p->start_f); 1627 pb.end_msf[0] = bin2bcd(p->end_m); 1628 pb.end_msf[1] = bin2bcd(p->end_s); 1629 pb.end_msf[2] = bin2bcd(p->end_f); 1630 1631 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1632 return EIO; 1633 1634 return mcd_play(unit, &pb); 1635 } 1636 1637 static int 1638 mcd_playtracks(int unit, struct ioc_play_track *pt) 1639 { 1640 struct mcd_data *cd = mcd_data + unit; 1641 struct mcd_read2 pb; 1642 int a = pt->start_track; 1643 int z = pt->end_track; 1644 int rc, i; 1645 1646 if ((rc = mcd_read_toc(unit)) != 0) 1647 return rc; 1648 1649 if (cd->debug) 1650 printf("mcd%d: playtracks from %d:%d to %d:%d\n", unit, 1651 a, pt->start_index, z, pt->end_index); 1652 1653 if ( a < bcd2bin(cd->volinfo.trk_low) 1654 || a > bcd2bin(cd->volinfo.trk_high) 1655 || a > z 1656 || z < bcd2bin(cd->volinfo.trk_low) 1657 || z > bcd2bin(cd->volinfo.trk_high)) 1658 return EINVAL; 1659 1660 for (i = 0; i < 3; i++) { 1661 pb.start_msf[i] = cd->toc[a].hd_pos_msf[i]; 1662 pb.end_msf[i] = cd->toc[z+1].hd_pos_msf[i]; 1663 } 1664 1665 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1666 return EIO; 1667 1668 return mcd_play(unit, &pb); 1669 } 1670 1671 static int 1672 mcd_playblocks(int unit, struct ioc_play_blocks *p) 1673 { 1674 struct mcd_data *cd = mcd_data + unit; 1675 struct mcd_read2 pb; 1676 1677 if (cd->debug) 1678 printf("mcd%d: playblocks: blkno %d length %d\n", 1679 unit, p->blk, p->len); 1680 1681 if (p->blk > cd->disksize || p->len > cd->disksize || 1682 p->blk < 0 || p->len < 0 || 1683 (p->blk + p->len) > cd->disksize) 1684 return EINVAL; 1685 1686 hsg2msf(p->blk, pb.start_msf); 1687 hsg2msf(p->blk + p->len, pb.end_msf); 1688 1689 if (mcd_setmode(unit, MCD_MD_COOKED) != 0) 1690 return EIO; 1691 1692 return mcd_play(unit, &pb); 1693 } 1694 1695 static int 1696 mcd_play(int unit, struct mcd_read2 *pb) 1697 { 1698 struct mcd_data *cd = mcd_data + unit; 1699 int com_port = cd->iobase + mcd_command; 1700 int retry, st = -1, status; 1701 1702 cd->lastpb = *pb; 1703 for(retry=0; retry<MCD_RETRYS; retry++) { 1704 1705 disable_intr(); 1706 outb(com_port, MCD_CMDSINGLESPEEDREAD); 1707 outb(com_port, pb->start_msf[0]); 1708 outb(com_port, pb->start_msf[1]); 1709 outb(com_port, pb->start_msf[2]); 1710 outb(com_port, pb->end_msf[0]); 1711 outb(com_port, pb->end_msf[1]); 1712 outb(com_port, pb->end_msf[2]); 1713 enable_intr(); 1714 1715 status=mcd_getstat(unit, 0); 1716 if (status == -1) 1717 continue; 1718 else if (status != -2) 1719 st = 0; 1720 break; 1721 } 1722 1723 if (status == -2) { 1724 printf("mcd%d: media changed\n", unit); 1725 return ENXIO; 1726 } 1727 if (cd->debug) 1728 printf("mcd%d: mcd_play retry=%d, status=0x%02x\n", unit, retry, status); 1729 if (st < 0) 1730 return ENXIO; 1731 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 1732 return 0; 1733 } 1734 1735 static int 1736 mcd_pause(int unit) 1737 { 1738 struct mcd_data *cd = mcd_data + unit; 1739 struct mcd_qchninfo q; 1740 int rc; 1741 1742 /* Verify current status */ 1743 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS && 1744 cd->audio_status != CD_AS_PLAY_PAUSED) { 1745 if (cd->debug) 1746 printf("mcd%d: pause attempted when not playing, audio status %d\n", 1747 unit, cd->audio_status); 1748 return EINVAL; 1749 } 1750 1751 /* Get the current position */ 1752 if (mcd_getqchan(unit, &q) < 0) 1753 return EIO; 1754 1755 /* Copy it into lastpb */ 1756 cd->lastpb.start_msf[0] = q.hd_pos_msf[0]; 1757 cd->lastpb.start_msf[1] = q.hd_pos_msf[1]; 1758 cd->lastpb.start_msf[2] = q.hd_pos_msf[2]; 1759 1760 /* Stop playing */ 1761 if ((rc=mcd_stop(unit)) != 0) 1762 return rc; 1763 1764 /* Set the proper status and exit */ 1765 cd->audio_status = CD_AS_PLAY_PAUSED; 1766 return 0; 1767 } 1768 1769 static int 1770 mcd_resume(int unit) 1771 { 1772 struct mcd_data *cd = mcd_data + unit; 1773 1774 if (cd->audio_status != CD_AS_PLAY_PAUSED) 1775 return EINVAL; 1776 return mcd_play(unit, &cd->lastpb); 1777 } 1778 1779 1780 static mcd_devsw_installed = 0; 1781 1782 static void mcd_drvinit(void *unused) 1783 { 1784 1785 if( ! mcd_devsw_installed ) { 1786 bdevsw_add_generic(BDEV_MAJOR,CDEV_MAJOR, &mcd_bdevsw); 1787 mcd_devsw_installed = 1; 1788 } 1789 } 1790 1791 SYSINIT(mcddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,mcd_drvinit,NULL) 1792 1793 1794 #endif /* NMCD > 0 */
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