mcd.c revision 1.100
1 /* $NetBSD: mcd.c,v 1.100 2007/07/29 12:50:21 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1993, 1994, 1995 Charles M. Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles M. Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * Copyright 1993 by Holger Veit (data part) 21 * Copyright 1993 by Brian Moore (audio part) 22 * All rights reserved. 23 * 24 * Redistribution and use in source and binary forms, with or without 25 * modification, are permitted provided that the following conditions 26 * are met: 27 * 1. Redistributions of source code must retain the above copyright 28 * notice, this list of conditions and the following disclaimer. 29 * 2. Redistributions in binary form must reproduce the above copyright 30 * notice, this list of conditions and the following disclaimer in the 31 * documentation and/or other materials provided with the distribution. 32 * 3. All advertising materials mentioning features or use of this software 33 * must display the following acknowledgement: 34 * This software was developed by Holger Veit and Brian Moore 35 * for use with "386BSD" and similar operating systems. 36 * "Similar operating systems" includes mainly non-profit oriented 37 * systems for research and education, including but not restricted to 38 * "NetBSD", "FreeBSD", "Mach" (by CMU). 39 * 4. Neither the name of the developer(s) nor the name "386BSD" 40 * may be used to endorse or promote products derived from this 41 * software without specific prior written permission. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY 44 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER(S) BE 47 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 48 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 49 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 50 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 51 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 52 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 53 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 54 */ 55 56 /*static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore";*/ 57 58 #include <sys/cdefs.h> 59 __KERNEL_RCSID(0, "$NetBSD: mcd.c,v 1.100 2007/07/29 12:50:21 ad Exp $"); 60 61 #include <sys/param.h> 62 #include <sys/systm.h> 63 #include <sys/callout.h> 64 #include <sys/kernel.h> 65 #include <sys/proc.h> 66 #include <sys/conf.h> 67 #include <sys/file.h> 68 #include <sys/buf.h> 69 #include <sys/bufq.h> 70 #include <sys/stat.h> 71 #include <sys/uio.h> 72 #include <sys/ioctl.h> 73 #include <sys/cdio.h> 74 #include <sys/errno.h> 75 #include <sys/disklabel.h> 76 #include <sys/device.h> 77 #include <sys/disk.h> 78 79 #include <machine/cpu.h> 80 #include <machine/intr.h> 81 #include <machine/bus.h> 82 83 #include <dev/isa/isavar.h> 84 #include <dev/isa/mcdreg.h> 85 86 #ifndef MCDDEBUG 87 #define MCD_TRACE(fmt,...) 88 #else 89 #define MCD_TRACE(fmt,...) {if (sc->debug) {printf("%s: st=%02x: ", sc->sc_dev.dv_xname, sc->status); printf(fmt,__VA_ARGS__);}} 90 #endif 91 92 #define MCDPART(dev) DISKPART(dev) 93 #define MCDUNIT(dev) DISKUNIT(dev) 94 95 /* toc */ 96 #define MCD_MAXTOCS 104 /* from the Linux driver */ 97 98 /* control promiscuous match */ 99 #include "opt_mcd_promisc.h" 100 101 #ifdef MCD_PROMISC 102 int mcd_promisc = 1; 103 #else 104 int mcd_promisc = 0; 105 #endif 106 107 struct mcd_mbx { 108 int retry, count; 109 struct buf *bp; 110 daddr_t blkno; 111 int nblk; 112 int sz; 113 u_long skip; 114 int state; 115 #define MCD_S_IDLE 0 116 #define MCD_S_BEGIN 1 117 #define MCD_S_WAITMODE 2 118 #define MCD_S_WAITREAD 3 119 int mode; 120 }; 121 122 struct mcd_softc { 123 struct device sc_dev; 124 struct disk sc_dk; 125 struct lock sc_lock; 126 void *sc_ih; 127 128 callout_t sc_pintr_ch; 129 130 bus_space_tag_t sc_iot; 131 bus_space_handle_t sc_ioh; 132 133 int irq, drq; 134 135 const char *type; 136 int flags; 137 #define MCDF_WLABEL 0x04 /* label is writable */ 138 #define MCDF_LABELLING 0x08 /* writing label */ 139 #define MCDF_LOADED 0x10 /* parameters loaded */ 140 short status; 141 short audio_status; 142 int blksize; 143 u_long disksize; 144 struct mcd_volinfo volinfo; 145 union mcd_qchninfo toc[MCD_MAXTOCS]; 146 struct mcd_command lastpb; 147 struct mcd_mbx mbx; 148 int lastmode; 149 #define MCD_MD_UNKNOWN -1 150 int lastupc; 151 #define MCD_UPC_UNKNOWN -1 152 struct bufq_state *buf_queue; 153 int active; 154 u_char readcmd; 155 u_char debug; 156 u_char probe; 157 }; 158 159 static int bcd2bin(bcd_t); 160 static bcd_t bin2bcd(int); 161 static void hsg2msf(int, bcd_t *); 162 static daddr_t msf2hsg(bcd_t *, int); 163 164 int mcd_playtracks(struct mcd_softc *, struct ioc_play_track *); 165 int mcd_playmsf(struct mcd_softc *, struct ioc_play_msf *); 166 int mcd_playblocks(struct mcd_softc *, struct ioc_play_blocks *); 167 int mcd_stop(struct mcd_softc *); 168 int mcd_eject(struct mcd_softc *); 169 int mcd_read_subchannel(struct mcd_softc *, struct ioc_read_subchannel *, 170 struct cd_sub_channel_info *); 171 int mcd_pause(struct mcd_softc *); 172 int mcd_resume(struct mcd_softc *); 173 int mcd_toc_header(struct mcd_softc *, struct ioc_toc_header *); 174 int mcd_toc_entries(struct mcd_softc *, struct ioc_read_toc_entry *, 175 struct cd_toc_entry *, int *); 176 177 int mcd_getreply(struct mcd_softc *); 178 int mcd_getstat(struct mcd_softc *); 179 int mcd_getresult(struct mcd_softc *, struct mcd_result *); 180 void mcd_setflags(struct mcd_softc *); 181 int mcd_get(struct mcd_softc *, char *, int); 182 int mcd_send(struct mcd_softc *, struct mcd_mbox *, int); 183 int mcdintr(void *); 184 void mcd_soft_reset(struct mcd_softc *); 185 int mcd_hard_reset(struct mcd_softc *); 186 int mcd_setmode(struct mcd_softc *, int); 187 int mcd_setupc(struct mcd_softc *, int); 188 int mcd_read_toc(struct mcd_softc *); 189 int mcd_getqchan(struct mcd_softc *, union mcd_qchninfo *, int); 190 int mcd_setlock(struct mcd_softc *, int); 191 192 int mcd_find(bus_space_tag_t, bus_space_handle_t, struct mcd_softc *); 193 int mcdprobe(struct device *, struct cfdata *, void *); 194 void mcdattach(struct device *, struct device *, void *); 195 196 CFATTACH_DECL(mcd, sizeof(struct mcd_softc), 197 mcdprobe, mcdattach, NULL, NULL); 198 199 extern struct cfdriver mcd_cd; 200 201 dev_type_open(mcdopen); 202 dev_type_close(mcdclose); 203 dev_type_read(mcdread); 204 dev_type_write(mcdwrite); 205 dev_type_ioctl(mcdioctl); 206 dev_type_strategy(mcdstrategy); 207 dev_type_dump(mcddump); 208 dev_type_size(mcdsize); 209 210 const struct bdevsw mcd_bdevsw = { 211 mcdopen, mcdclose, mcdstrategy, mcdioctl, mcddump, mcdsize, D_DISK 212 }; 213 214 const struct cdevsw mcd_cdevsw = { 215 mcdopen, mcdclose, mcdread, mcdwrite, mcdioctl, 216 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 217 }; 218 219 void mcdgetdefaultlabel(struct mcd_softc *, struct disklabel *); 220 void mcdgetdisklabel(struct mcd_softc *); 221 int mcd_get_parms(struct mcd_softc *); 222 void mcdstart(struct mcd_softc *); 223 void mcd_pseudointr(void *); 224 225 struct dkdriver mcddkdriver = { mcdstrategy, NULL, }; 226 227 #define MCD_RETRIES 3 228 #define MCD_RDRETRIES 3 229 230 /* several delays */ 231 #define RDELAY_WAITMODE 300 232 #define RDELAY_WAITREAD 800 233 234 #define DELAY_GRANULARITY 25 /* 25us */ 235 #define DELAY_GETREPLY 100000 /* 100000 * 25us */ 236 237 void 238 mcdattach(struct device *parent, struct device *self, void *aux) 239 { 240 struct mcd_softc *sc = (void *)self; 241 struct isa_attach_args *ia = aux; 242 bus_space_tag_t iot = ia->ia_iot; 243 bus_space_handle_t ioh; 244 struct mcd_mbox mbx; 245 246 /* Map i/o space */ 247 if (bus_space_map(iot, ia->ia_io[0].ir_addr, MCD_NPORT, 0, &ioh)) { 248 printf(": can't map i/o space\n"); 249 return; 250 } 251 252 lockinit(&sc->sc_lock, PRIBIO | PCATCH, "mcdlock", 0, 0); 253 254 sc->sc_iot = iot; 255 sc->sc_ioh = ioh; 256 257 sc->probe = 0; 258 sc->debug = 0; 259 260 if (!mcd_find(iot, ioh, sc)) { 261 printf(": mcd_find failed\n"); 262 return; 263 } 264 265 bufq_alloc(&sc->buf_queue, "disksort", BUFQ_SORT_RAWBLOCK); 266 callout_init(&sc->sc_pintr_ch, 0); 267 268 /* 269 * Initialize and attach the disk structure. 270 */ 271 sc->sc_dk.dk_driver = &mcddkdriver; 272 sc->sc_dk.dk_name = sc->sc_dev.dv_xname; 273 disk_attach(&sc->sc_dk); 274 275 printf(": model %s\n", sc->type != 0 ? sc->type : "unknown"); 276 277 (void) mcd_setlock(sc, MCD_LK_UNLOCK); 278 279 mbx.cmd.opcode = MCD_CMDCONFIGDRIVE; 280 mbx.cmd.length = sizeof(mbx.cmd.data.config) - 1; 281 mbx.cmd.data.config.subcommand = MCD_CF_IRQENABLE; 282 mbx.cmd.data.config.data1 = 0x01; 283 mbx.res.length = 0; 284 (void) mcd_send(sc, &mbx, 0); 285 286 mcd_soft_reset(sc); 287 288 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 289 IST_EDGE, IPL_BIO, mcdintr, sc); 290 } 291 292 int 293 mcdopen(dev_t dev, int flag, int fmt, struct lwp *l) 294 { 295 int error, part; 296 struct mcd_softc *sc; 297 298 sc = device_lookup(&mcd_cd, MCDUNIT(dev)); 299 if (sc == NULL) 300 return ENXIO; 301 302 if ((error = lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 303 return error; 304 305 if (sc->sc_dk.dk_openmask != 0) { 306 /* 307 * If any partition is open, but the disk has been invalidated, 308 * disallow further opens. 309 */ 310 if ((sc->flags & MCDF_LOADED) == 0) { 311 error = EIO; 312 goto bad3; 313 } 314 } else { 315 /* 316 * Lock the drawer. This will also notice any pending disk 317 * change or door open indicator and clear the MCDF_LOADED bit 318 * if necessary. 319 */ 320 (void) mcd_setlock(sc, MCD_LK_LOCK); 321 322 if ((sc->flags & MCDF_LOADED) == 0) { 323 /* Partially reset the state. */ 324 sc->lastmode = MCD_MD_UNKNOWN; 325 sc->lastupc = MCD_UPC_UNKNOWN; 326 327 sc->flags |= MCDF_LOADED; 328 329 /* Set the mode, causing the disk to spin up. */ 330 if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0) 331 goto bad2; 332 333 /* Load the physical device parameters. */ 334 if (mcd_get_parms(sc) != 0) { 335 error = ENXIO; 336 goto bad2; 337 } 338 339 /* Read the table of contents. */ 340 if ((error = mcd_read_toc(sc)) != 0) 341 goto bad2; 342 343 /* Fabricate a disk label. */ 344 mcdgetdisklabel(sc); 345 } 346 } 347 348 part = MCDPART(dev); 349 350 MCD_TRACE("open: partition=%d disksize=%ld blksize=%d\n", part, 351 sc->disksize, sc->blksize); 352 353 /* Check that the partition exists. */ 354 if (part != RAW_PART && 355 (part >= sc->sc_dk.dk_label->d_npartitions || 356 sc->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 357 error = ENXIO; 358 goto bad; 359 } 360 361 /* Insure only one open at a time. */ 362 switch (fmt) { 363 case S_IFCHR: 364 sc->sc_dk.dk_copenmask |= (1 << part); 365 break; 366 case S_IFBLK: 367 sc->sc_dk.dk_bopenmask |= (1 << part); 368 break; 369 } 370 sc->sc_dk.dk_openmask = sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask; 371 372 lockmgr(&sc->sc_lock, LK_RELEASE, NULL); 373 return 0; 374 375 bad2: 376 sc->flags &= ~MCDF_LOADED; 377 378 bad: 379 if (sc->sc_dk.dk_openmask == 0) { 380 #if 0 381 (void) mcd_setmode(sc, MCD_MD_SLEEP); 382 #endif 383 (void) mcd_setlock(sc, MCD_LK_UNLOCK); 384 } 385 386 bad3: 387 lockmgr(&sc->sc_lock, LK_RELEASE, NULL); 388 return error; 389 } 390 391 int 392 mcdclose(dev_t dev, int flag, int fmt, struct lwp *l) 393 { 394 struct mcd_softc *sc = device_lookup(&mcd_cd, MCDUNIT(dev)); 395 int part = MCDPART(dev); 396 int error; 397 398 MCD_TRACE("close: partition=%d\n", part); 399 400 if ((error = lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 401 return error; 402 403 switch (fmt) { 404 case S_IFCHR: 405 sc->sc_dk.dk_copenmask &= ~(1 << part); 406 break; 407 case S_IFBLK: 408 sc->sc_dk.dk_bopenmask &= ~(1 << part); 409 break; 410 } 411 sc->sc_dk.dk_openmask = sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask; 412 413 if (sc->sc_dk.dk_openmask == 0) { 414 /* XXXX Must wait for I/O to complete! */ 415 416 #if 0 417 (void) mcd_setmode(sc, MCD_MD_SLEEP); 418 #endif 419 (void) mcd_setlock(sc, MCD_LK_UNLOCK); 420 } 421 422 lockmgr(&sc->sc_lock, LK_RELEASE, NULL); 423 return 0; 424 } 425 426 void 427 mcdstrategy(bp) 428 struct buf *bp; 429 { 430 struct mcd_softc *sc = device_lookup(&mcd_cd, MCDUNIT(bp->b_dev)); 431 struct disklabel *lp = sc->sc_dk.dk_label; 432 daddr_t blkno; 433 int s; 434 435 /* Test validity. */ 436 MCD_TRACE("strategy: buf=0x%p blkno=%d bcount=%d\n", bp, 437 (int) bp->b_blkno, bp->b_bcount); 438 if (bp->b_blkno < 0 || 439 (bp->b_bcount % sc->blksize) != 0) { 440 printf("%s: strategy: blkno = %" PRId64 " bcount = %d\n", 441 sc->sc_dev.dv_xname, bp->b_blkno, bp->b_bcount); 442 bp->b_error = EINVAL; 443 goto done; 444 } 445 446 /* If device invalidated (e.g. media change, door open), error. */ 447 if ((sc->flags & MCDF_LOADED) == 0) { 448 MCD_TRACE("strategy: drive not valid%s", "\n"); 449 bp->b_error = EIO; 450 goto done; 451 } 452 453 /* No data to read. */ 454 if (bp->b_bcount == 0) 455 goto done; 456 457 /* 458 * Do bounds checking, adjust transfer. if error, process. 459 * If end of partition, just return. 460 */ 461 if (MCDPART(bp->b_dev) != RAW_PART && 462 bounds_check_with_label(&sc->sc_dk, bp, 463 (sc->flags & (MCDF_WLABEL|MCDF_LABELLING)) != 0) <= 0) 464 goto done; 465 466 /* 467 * Now convert the block number to absolute and put it in 468 * terms of the device's logical block size. 469 */ 470 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 471 if (MCDPART(bp->b_dev) != RAW_PART) 472 blkno += lp->d_partitions[MCDPART(bp->b_dev)].p_offset; 473 474 bp->b_rawblkno = blkno; 475 476 /* Queue it. */ 477 s = splbio(); 478 BUFQ_PUT(sc->buf_queue, bp); 479 splx(s); 480 if (!sc->active) 481 mcdstart(sc); 482 return; 483 484 done: 485 bp->b_resid = bp->b_bcount; 486 biodone(bp); 487 } 488 489 void 490 mcdstart(sc) 491 struct mcd_softc *sc; 492 { 493 struct buf *bp; 494 int s; 495 496 loop: 497 s = splbio(); 498 499 if ((bp = BUFQ_GET(sc->buf_queue)) == NULL) { 500 /* Nothing to do. */ 501 sc->active = 0; 502 splx(s); 503 return; 504 } 505 506 /* Block found to process. */ 507 MCD_TRACE("start: found block bp=0x%p\n", bp); 508 splx(s); 509 510 /* Changed media? */ 511 if ((sc->flags & MCDF_LOADED) == 0) { 512 MCD_TRACE("start: drive not valid%s", "\n"); 513 bp->b_error = EIO; 514 biodone(bp); 515 goto loop; 516 } 517 518 sc->active = 1; 519 520 /* Instrumentation. */ 521 s = splbio(); 522 disk_busy(&sc->sc_dk); 523 splx(s); 524 525 sc->mbx.retry = MCD_RDRETRIES; 526 sc->mbx.bp = bp; 527 sc->mbx.blkno = bp->b_rawblkno; 528 sc->mbx.nblk = bp->b_bcount / sc->blksize; 529 sc->mbx.sz = sc->blksize; 530 sc->mbx.skip = 0; 531 sc->mbx.state = MCD_S_BEGIN; 532 sc->mbx.mode = MCD_MD_COOKED; 533 534 s = splbio(); 535 (void) mcdintr(sc); 536 splx(s); 537 } 538 539 int 540 mcdread(dev_t dev, struct uio *uio, int flags) 541 { 542 543 return (physio(mcdstrategy, NULL, dev, B_READ, minphys, uio)); 544 } 545 546 int 547 mcdwrite(dev_t dev, struct uio *uio, int flags) 548 { 549 550 return (physio(mcdstrategy, NULL, dev, B_WRITE, minphys, uio)); 551 } 552 553 int 554 mcdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) 555 { 556 struct mcd_softc *sc = device_lookup(&mcd_cd, MCDUNIT(dev)); 557 int error; 558 int part; 559 #ifdef __HAVE_OLD_DISKLABEL 560 struct disklabel newlabel; 561 #endif 562 563 MCD_TRACE("ioctl: cmd=0x%lx\n", cmd); 564 565 if ((sc->flags & MCDF_LOADED) == 0) 566 return EIO; 567 568 part = MCDPART(dev); 569 switch (cmd) { 570 case DIOCGDINFO: 571 *(struct disklabel *)addr = *(sc->sc_dk.dk_label); 572 return 0; 573 #ifdef __HAVE_OLD_DISKLABEL 574 case ODIOCGDINFO: 575 newlabel = *(sc->sc_dk.dk_label); 576 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 577 return ENOTTY; 578 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 579 return 0; 580 #endif 581 582 case DIOCGPART: 583 ((struct partinfo *)addr)->disklab = sc->sc_dk.dk_label; 584 ((struct partinfo *)addr)->part = 585 &sc->sc_dk.dk_label->d_partitions[part]; 586 return 0; 587 588 case DIOCWDINFO: 589 case DIOCSDINFO: 590 #ifdef __HAVE_OLD_DISKLABEL 591 case ODIOCWDINFO: 592 case ODIOCSDINFO: 593 #endif 594 { 595 struct disklabel *lp; 596 597 if ((flag & FWRITE) == 0) 598 return EBADF; 599 600 #ifdef __HAVE_OLD_DISKLABEL 601 if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) { 602 memset(&newlabel, 0, sizeof newlabel); 603 memcpy(&newlabel, addr, sizeof (struct olddisklabel)); 604 lp = &newlabel; 605 } else 606 #endif 607 lp = addr; 608 609 if ((error = lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 610 return error; 611 sc->flags |= MCDF_LABELLING; 612 613 error = setdisklabel(sc->sc_dk.dk_label, 614 lp, /*sc->sc_dk.dk_openmask : */0, 615 sc->sc_dk.dk_cpulabel); 616 if (error == 0) { 617 } 618 619 sc->flags &= ~MCDF_LABELLING; 620 lockmgr(&sc->sc_lock, LK_RELEASE, NULL); 621 return error; 622 } 623 624 case DIOCWLABEL: 625 return EBADF; 626 627 case DIOCGDEFLABEL: 628 mcdgetdefaultlabel(sc, addr); 629 return 0; 630 631 #ifdef __HAVE_OLD_DISKLABEL 632 case ODIOCGDEFLABEL: 633 mcdgetdefaultlabel(sc, &newlabel); 634 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 635 return ENOTTY; 636 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 637 return 0; 638 #endif 639 640 case CDIOCPLAYTRACKS: 641 return mcd_playtracks(sc, addr); 642 case CDIOCPLAYMSF: 643 return mcd_playmsf(sc, addr); 644 case CDIOCPLAYBLOCKS: 645 return mcd_playblocks(sc, addr); 646 case CDIOCREADSUBCHANNEL: { 647 struct cd_sub_channel_info info; 648 error = mcd_read_subchannel(sc, addr, &info); 649 if (error != 0) { 650 struct ioc_read_subchannel *ch = addr; 651 error = copyout(&info, ch->data, ch->data_len); 652 } 653 return error; 654 } 655 case CDIOCREADSUBCHANNEL_BUF: 656 return mcd_read_subchannel(sc, addr, 657 &((struct ioc_read_subchannel_buf *)addr)->info); 658 case CDIOREADTOCHEADER: 659 return mcd_toc_header(sc, addr); 660 case CDIOREADTOCENTRYS: { 661 struct cd_toc_entry entries[MCD_MAXTOCS]; 662 struct ioc_read_toc_entry *te = addr; 663 int count; 664 if (te->data_len > sizeof entries) 665 return EINVAL; 666 error = mcd_toc_entries(sc, te, entries, &count); 667 if (error == 0) 668 /* Copy the data back. */ 669 error = copyout(entries, te->data, min(te->data_len, 670 count * sizeof(struct cd_toc_entry))); 671 return error; 672 } 673 case CDIOREADTOCENTRIES_BUF: { 674 struct ioc_read_toc_entry_buf *te = addr; 675 int count; 676 if (te->req.data_len > sizeof te->entry) 677 return EINVAL; 678 return mcd_toc_entries(sc, &te->req, te->entry, &count); 679 } 680 case CDIOCSETPATCH: 681 case CDIOCGETVOL: 682 case CDIOCSETVOL: 683 case CDIOCSETMONO: 684 case CDIOCSETSTEREO: 685 case CDIOCSETMUTE: 686 case CDIOCSETLEFT: 687 case CDIOCSETRIGHT: 688 return EINVAL; 689 case CDIOCRESUME: 690 return mcd_resume(sc); 691 case CDIOCPAUSE: 692 return mcd_pause(sc); 693 case CDIOCSTART: 694 return EINVAL; 695 case CDIOCSTOP: 696 return mcd_stop(sc); 697 case DIOCEJECT: 698 if (*(int *)addr == 0) { 699 /* 700 * Don't force eject: check that we are the only 701 * partition open. If so, unlock it. 702 */ 703 if ((sc->sc_dk.dk_openmask & ~(1 << part)) == 0 && 704 sc->sc_dk.dk_bopenmask + sc->sc_dk.dk_copenmask == 705 sc->sc_dk.dk_openmask) { 706 error = mcd_setlock(sc, MCD_LK_UNLOCK); 707 if (error) 708 return (error); 709 } else { 710 return (EBUSY); 711 } 712 } 713 /* FALLTHROUGH */ 714 case CDIOCEJECT: /* FALLTHROUGH */ 715 case ODIOCEJECT: 716 return mcd_eject(sc); 717 case CDIOCALLOW: 718 return mcd_setlock(sc, MCD_LK_UNLOCK); 719 case CDIOCPREVENT: 720 return mcd_setlock(sc, MCD_LK_LOCK); 721 case DIOCLOCK: 722 return mcd_setlock(sc, 723 (*(int *)addr) ? MCD_LK_LOCK : MCD_LK_UNLOCK); 724 case CDIOCSETDEBUG: 725 sc->debug = 1; 726 return 0; 727 case CDIOCCLRDEBUG: 728 sc->debug = 0; 729 return 0; 730 case CDIOCRESET: 731 return mcd_hard_reset(sc); 732 733 default: 734 return ENOTTY; 735 } 736 737 #ifdef DIAGNOSTIC 738 panic("mcdioctl: impossible"); 739 #endif 740 } 741 742 void 743 mcdgetdefaultlabel(sc, lp) 744 struct mcd_softc *sc; 745 struct disklabel *lp; 746 { 747 748 memset(lp, 0, sizeof(struct disklabel)); 749 750 lp->d_secsize = sc->blksize; 751 lp->d_ntracks = 1; 752 lp->d_nsectors = 100; 753 lp->d_ncylinders = (sc->disksize / 100) + 1; 754 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 755 756 strncpy(lp->d_typename, "Mitsumi CD-ROM", 16); 757 lp->d_type = 0; /* XXX */ 758 strncpy(lp->d_packname, "fictitious", 16); 759 lp->d_secperunit = sc->disksize; 760 lp->d_rpm = 300; 761 lp->d_interleave = 1; 762 lp->d_flags = D_REMOVABLE; 763 764 lp->d_partitions[0].p_offset = 0; 765 lp->d_partitions[0].p_size = 766 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 767 lp->d_partitions[0].p_fstype = FS_ISO9660; 768 lp->d_partitions[RAW_PART].p_offset = 0; 769 lp->d_partitions[RAW_PART].p_size = 770 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 771 lp->d_partitions[RAW_PART].p_fstype = FS_ISO9660; 772 lp->d_npartitions = RAW_PART + 1; 773 774 lp->d_magic = DISKMAGIC; 775 lp->d_magic2 = DISKMAGIC; 776 lp->d_checksum = dkcksum(lp); 777 } 778 779 /* 780 * This could have been taken from scsi/cd.c, but it is not clear 781 * whether the scsi cd driver is linked in. 782 */ 783 void 784 mcdgetdisklabel(sc) 785 struct mcd_softc *sc; 786 { 787 struct disklabel *lp = sc->sc_dk.dk_label; 788 789 memset(sc->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 790 791 mcdgetdefaultlabel(sc, lp); 792 } 793 794 int 795 mcd_get_parms(sc) 796 struct mcd_softc *sc; 797 { 798 struct mcd_mbox mbx; 799 daddr_t size; 800 int error; 801 802 /* Send volume info command. */ 803 mbx.cmd.opcode = MCD_CMDGETVOLINFO; 804 mbx.cmd.length = 0; 805 mbx.res.length = sizeof(mbx.res.data.volinfo); 806 if ((error = mcd_send(sc, &mbx, 1)) != 0) 807 return error; 808 809 if (mbx.res.data.volinfo.trk_low == 0x00 && 810 mbx.res.data.volinfo.trk_high == 0x00) 811 return EINVAL; 812 813 /* Volinfo is OK. */ 814 sc->volinfo = mbx.res.data.volinfo; 815 sc->blksize = MCD_BLKSIZE_COOKED; 816 size = msf2hsg(sc->volinfo.vol_msf, 0); 817 sc->disksize = size * (MCD_BLKSIZE_COOKED / DEV_BSIZE); 818 return 0; 819 } 820 821 int 822 mcdsize(dev_t dev) 823 { 824 825 /* CD-ROMs are read-only. */ 826 return -1; 827 } 828 829 int 830 mcddump(dev_t dev, daddr_t blkno, void *va, 831 size_t size) 832 { 833 834 /* Not implemented. */ 835 return ENXIO; 836 } 837 838 /* 839 * Find the board and fill in the softc. 840 */ 841 int 842 mcd_find(iot, ioh, sc) 843 bus_space_tag_t iot; 844 bus_space_handle_t ioh; 845 struct mcd_softc *sc; 846 { 847 int i; 848 struct mcd_mbox mbx; 849 850 sc->sc_iot = iot; 851 sc->sc_ioh = ioh; 852 853 /* Send a reset. */ 854 bus_space_write_1(iot, ioh, MCD_RESET, 0); 855 delay(1000000); 856 /* Get any pending status and throw away. */ 857 for (i = 10; i; i--) 858 bus_space_read_1(iot, ioh, MCD_STATUS); 859 delay(1000); 860 861 /* Send get status command. */ 862 mbx.cmd.opcode = MCD_CMDGETSTAT; 863 mbx.cmd.length = 0; 864 mbx.res.length = 0; 865 if (mcd_send(sc, &mbx, 0) != 0) 866 return 0; 867 868 /* Get info about the drive. */ 869 mbx.cmd.opcode = MCD_CMDCONTINFO; 870 mbx.cmd.length = 0; 871 mbx.res.length = sizeof(mbx.res.data.continfo); 872 if (mcd_send(sc, &mbx, 0) != 0) 873 return 0; 874 875 /* 876 * The following is code which is not guaranteed to work for all 877 * drives, because the meaning of the expected 'M' is not clear 878 * (M_itsumi is an obvious assumption, but I don't trust that). 879 * Also, the original hack had a bogus condition that always 880 * returned true. 881 * 882 * Note: Which models support interrupts? >=LU005S? 883 */ 884 sc->readcmd = MCD_CMDREADSINGLESPEED; 885 switch (mbx.res.data.continfo.code) { 886 case 'M': 887 if (mbx.res.data.continfo.version <= 2) 888 sc->type = "LU002S"; 889 else if (mbx.res.data.continfo.version <= 5) 890 sc->type = "LU005S"; 891 else 892 sc->type = "LU006S"; 893 break; 894 case 'F': 895 sc->type = "FX001"; 896 break; 897 case 'D': 898 sc->type = "FX001D"; 899 sc->readcmd = MCD_CMDREADDOUBLESPEED; 900 break; 901 default: 902 /* 903 * mcd_send() says the response looked OK but the 904 * drive type is unknown. If mcd_promisc, match anyway. 905 */ 906 if (mcd_promisc != 0) 907 return 0; 908 909 #ifdef MCDDEBUG 910 printf("%s: unrecognized drive version %c%02x; will try to use it anyway\n", 911 sc->sc_dev.dv_xname, 912 mbx.res.data.continfo.code, mbx.res.data.continfo.version); 913 #endif 914 sc->type = 0; 915 break; 916 } 917 918 return 1; 919 920 } 921 922 int 923 mcdprobe(struct device *parent, struct cfdata *match, 924 void *aux) 925 { 926 struct isa_attach_args *ia = aux; 927 struct mcd_softc sc; 928 bus_space_tag_t iot = ia->ia_iot; 929 bus_space_handle_t ioh; 930 int rv; 931 932 if (ia->ia_nio < 1) 933 return (0); 934 if (ia->ia_nirq < 1) 935 return (0); 936 937 if (ISA_DIRECT_CONFIG(ia)) 938 return (0); 939 940 /* Disallow wildcarded i/o address. */ 941 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 942 return (0); 943 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 944 return (0); 945 946 /* Map i/o space */ 947 if (bus_space_map(iot, ia->ia_io[0].ir_addr, MCD_NPORT, 0, &ioh)) 948 return 0; 949 950 sc.debug = 0; 951 sc.probe = 1; 952 953 rv = mcd_find(iot, ioh, &sc); 954 955 bus_space_unmap(iot, ioh, MCD_NPORT); 956 957 if (rv) { 958 ia->ia_nio = 1; 959 ia->ia_io[0].ir_size = MCD_NPORT; 960 961 ia->ia_nirq = 1; 962 963 ia->ia_niomem = 0; 964 ia->ia_ndrq = 0; 965 } 966 967 return (rv); 968 } 969 970 int 971 mcd_getreply(sc) 972 struct mcd_softc *sc; 973 { 974 bus_space_tag_t iot = sc->sc_iot; 975 bus_space_handle_t ioh = sc->sc_ioh; 976 int i; 977 978 /* Wait until xfer port senses data ready. */ 979 for (i = DELAY_GETREPLY; i; i--) { 980 if ((bus_space_read_1(iot, ioh, MCD_XFER) & 981 MCD_XF_STATUSUNAVAIL) == 0) 982 break; 983 delay(DELAY_GRANULARITY); 984 } 985 if (!i) 986 return -1; 987 988 /* Get the data. */ 989 return bus_space_read_1(iot, ioh, MCD_STATUS); 990 } 991 992 int 993 mcd_getstat(sc) 994 struct mcd_softc *sc; 995 { 996 struct mcd_mbox mbx; 997 998 mbx.cmd.opcode = MCD_CMDGETSTAT; 999 mbx.cmd.length = 0; 1000 mbx.res.length = 0; 1001 return mcd_send(sc, &mbx, 1); 1002 } 1003 1004 int 1005 mcd_getresult(sc, res) 1006 struct mcd_softc *sc; 1007 struct mcd_result *res; 1008 { 1009 int i, x; 1010 1011 if (sc->debug) 1012 printf("%s: mcd_getresult: %d", sc->sc_dev.dv_xname, 1013 res->length); 1014 1015 if ((x = mcd_getreply(sc)) < 0) { 1016 if (sc->debug) 1017 printf(" timeout\n"); 1018 else if (!sc->probe) 1019 printf("%s: timeout in getresult\n", sc->sc_dev.dv_xname); 1020 return EIO; 1021 } 1022 if (sc->debug) 1023 printf(" %02x", (u_int)x); 1024 sc->status = x; 1025 mcd_setflags(sc); 1026 1027 if ((sc->status & MCD_ST_CMDCHECK) != 0) 1028 return EINVAL; 1029 1030 for (i = 0; i < res->length; i++) { 1031 if ((x = mcd_getreply(sc)) < 0) { 1032 if (sc->debug) 1033 printf(" timeout\n"); 1034 else 1035 printf("%s: timeout in getresult\n", sc->sc_dev.dv_xname); 1036 return EIO; 1037 } 1038 if (sc->debug) 1039 printf(" %02x", (u_int)x); 1040 res->data.raw.data[i] = x; 1041 } 1042 1043 if (sc->debug) 1044 printf(" succeeded\n"); 1045 1046 #ifdef MCDDEBUG 1047 delay(10); 1048 while ((bus_space_read_1(sc->sc_iot, sc->sc_ioh, MCD_XFER) & 1049 MCD_XF_STATUSUNAVAIL) == 0) { 1050 x = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MCD_STATUS); 1051 printf("%s: got extra byte %02x during getstatus\n", 1052 sc->sc_dev.dv_xname, (u_int)x); 1053 delay(10); 1054 } 1055 #endif 1056 1057 return 0; 1058 } 1059 1060 void 1061 mcd_setflags(sc) 1062 struct mcd_softc *sc; 1063 { 1064 1065 /* Check flags. */ 1066 if ((sc->flags & MCDF_LOADED) != 0 && 1067 (sc->status & (MCD_ST_DSKCHNG | MCD_ST_DSKIN | MCD_ST_DOOROPEN)) != 1068 MCD_ST_DSKIN) { 1069 if ((sc->status & MCD_ST_DOOROPEN) != 0) 1070 printf("%s: door open\n", sc->sc_dev.dv_xname); 1071 else if ((sc->status & MCD_ST_DSKIN) == 0) 1072 printf("%s: no disk present\n", sc->sc_dev.dv_xname); 1073 else if ((sc->status & MCD_ST_DSKCHNG) != 0) 1074 printf("%s: media change\n", sc->sc_dev.dv_xname); 1075 sc->flags &= ~MCDF_LOADED; 1076 } 1077 1078 if ((sc->status & MCD_ST_AUDIOBSY) != 0) 1079 sc->audio_status = CD_AS_PLAY_IN_PROGRESS; 1080 else if (sc->audio_status == CD_AS_PLAY_IN_PROGRESS || 1081 sc->audio_status == CD_AS_AUDIO_INVALID) 1082 sc->audio_status = CD_AS_PLAY_COMPLETED; 1083 } 1084 1085 int 1086 mcd_send(sc, mbx, diskin) 1087 struct mcd_softc *sc; 1088 struct mcd_mbox *mbx; 1089 int diskin; 1090 { 1091 int retry, i, error; 1092 bus_space_tag_t iot = sc->sc_iot; 1093 bus_space_handle_t ioh = sc->sc_ioh; 1094 1095 if (sc->debug) { 1096 printf("%s: mcd_send: %d %02x", sc->sc_dev.dv_xname, 1097 mbx->cmd.length, (u_int)mbx->cmd.opcode); 1098 for (i = 0; i < mbx->cmd.length; i++) 1099 printf(" %02x", (u_int)mbx->cmd.data.raw.data[i]); 1100 printf("\n"); 1101 } 1102 1103 for (retry = MCD_RETRIES; retry; retry--) { 1104 bus_space_write_1(iot, ioh, MCD_COMMAND, mbx->cmd.opcode); 1105 for (i = 0; i < mbx->cmd.length; i++) 1106 bus_space_write_1(iot, ioh, MCD_COMMAND, mbx->cmd.data.raw.data[i]); 1107 if ((error = mcd_getresult(sc, &mbx->res)) == 0) 1108 break; 1109 if (error == EINVAL) 1110 return error; 1111 } 1112 if (!retry) 1113 return error; 1114 if (diskin && (sc->flags & MCDF_LOADED) == 0) 1115 return EIO; 1116 1117 return 0; 1118 } 1119 1120 static int 1121 bcd2bin(b) 1122 bcd_t b; 1123 { 1124 1125 return (b >> 4) * 10 + (b & 15); 1126 } 1127 1128 static bcd_t 1129 bin2bcd(b) 1130 int b; 1131 { 1132 1133 return ((b / 10) << 4) | (b % 10); 1134 } 1135 1136 static void 1137 hsg2msf(hsg, msf) 1138 int hsg; 1139 bcd_t *msf; 1140 { 1141 1142 hsg += 150; 1143 F_msf(msf) = bin2bcd(hsg % 75); 1144 hsg /= 75; 1145 S_msf(msf) = bin2bcd(hsg % 60); 1146 hsg /= 60; 1147 M_msf(msf) = bin2bcd(hsg); 1148 } 1149 1150 static daddr_t 1151 msf2hsg(msf, relative) 1152 bcd_t *msf; 1153 int relative; 1154 { 1155 daddr_t blkno; 1156 1157 blkno = bcd2bin(M_msf(msf)) * 75 * 60 + 1158 bcd2bin(S_msf(msf)) * 75 + 1159 bcd2bin(F_msf(msf)); 1160 if (!relative) 1161 blkno -= 150; 1162 return blkno; 1163 } 1164 1165 void 1166 mcd_pseudointr(v) 1167 void *v; 1168 { 1169 struct mcd_softc *sc = v; 1170 int s; 1171 1172 s = splbio(); 1173 (void) mcdintr(sc); 1174 splx(s); 1175 } 1176 1177 /* 1178 * State machine to process read requests. 1179 * Initialize with MCD_S_BEGIN: calculate sizes, and set mode 1180 * MCD_S_WAITMODE: waits for status reply from set mode, set read command 1181 * MCD_S_WAITREAD: wait for read ready, read data. 1182 */ 1183 int 1184 mcdintr(arg) 1185 void *arg; 1186 { 1187 struct mcd_softc *sc = arg; 1188 struct mcd_mbx *mbx = &sc->mbx; 1189 struct buf *bp = mbx->bp; 1190 bus_space_tag_t iot = sc->sc_iot; 1191 bus_space_handle_t ioh = sc->sc_ioh; 1192 1193 int i; 1194 u_char x; 1195 bcd_t msf[3]; 1196 1197 switch (mbx->state) { 1198 case MCD_S_IDLE: 1199 return 0; 1200 1201 case MCD_S_BEGIN: 1202 tryagain: 1203 if (mbx->mode == sc->lastmode) 1204 goto firstblock; 1205 1206 sc->lastmode = MCD_MD_UNKNOWN; 1207 bus_space_write_1(iot, ioh, MCD_COMMAND, MCD_CMDSETMODE); 1208 bus_space_write_1(iot, ioh, MCD_COMMAND, mbx->mode); 1209 1210 mbx->count = RDELAY_WAITMODE; 1211 mbx->state = MCD_S_WAITMODE; 1212 1213 case MCD_S_WAITMODE: 1214 callout_stop(&sc->sc_pintr_ch); 1215 for (i = 20; i; i--) { 1216 x = bus_space_read_1(iot, ioh, MCD_XFER); 1217 if ((x & MCD_XF_STATUSUNAVAIL) == 0) 1218 break; 1219 delay(50); 1220 } 1221 if (i == 0) 1222 goto hold; 1223 sc->status = bus_space_read_1(iot, ioh, MCD_STATUS); 1224 mcd_setflags(sc); 1225 if ((sc->flags & MCDF_LOADED) == 0) 1226 goto changed; 1227 MCD_TRACE("doread: got WAITMODE delay=%d\n", 1228 RDELAY_WAITMODE - mbx->count); 1229 1230 sc->lastmode = mbx->mode; 1231 1232 firstblock: 1233 MCD_TRACE("doread: read blkno=%d for bp=0x%p\n", 1234 (int) mbx->blkno, bp); 1235 1236 /* Build parameter block. */ 1237 hsg2msf(mbx->blkno, msf); 1238 1239 /* Send the read command. */ 1240 bus_space_write_1(iot, ioh, MCD_COMMAND, sc->readcmd); 1241 bus_space_write_1(iot, ioh, MCD_COMMAND, msf[0]); 1242 bus_space_write_1(iot, ioh, MCD_COMMAND, msf[1]); 1243 bus_space_write_1(iot, ioh, MCD_COMMAND, msf[2]); 1244 bus_space_write_1(iot, ioh, MCD_COMMAND, 0); 1245 bus_space_write_1(iot, ioh, MCD_COMMAND, 0); 1246 bus_space_write_1(iot, ioh, MCD_COMMAND, mbx->nblk); 1247 1248 mbx->count = RDELAY_WAITREAD; 1249 mbx->state = MCD_S_WAITREAD; 1250 1251 case MCD_S_WAITREAD: 1252 callout_stop(&sc->sc_pintr_ch); 1253 nextblock: 1254 loop: 1255 for (i = 20; i; i--) { 1256 x = bus_space_read_1(iot, ioh, MCD_XFER); 1257 if ((x & MCD_XF_DATAUNAVAIL) == 0) 1258 goto gotblock; 1259 if ((x & MCD_XF_STATUSUNAVAIL) == 0) 1260 break; 1261 delay(50); 1262 } 1263 if (i == 0) 1264 goto hold; 1265 sc->status = bus_space_read_1(iot, ioh, MCD_STATUS); 1266 mcd_setflags(sc); 1267 if ((sc->flags & MCDF_LOADED) == 0) 1268 goto changed; 1269 #if 0 1270 printf("%s: got status byte %02x during read\n", 1271 sc->sc_dev.dv_xname, (u_int)sc->status); 1272 #endif 1273 goto loop; 1274 1275 gotblock: 1276 MCD_TRACE("doread: got data delay=%d\n", 1277 RDELAY_WAITREAD - mbx->count); 1278 1279 /* Data is ready. */ 1280 bus_space_write_1(iot, ioh, MCD_CTL2, 0x04); /* XXX */ 1281 bus_space_read_multi_1(iot, ioh, MCD_RDATA, 1282 (char *)bp->b_data + mbx->skip, mbx->sz); 1283 bus_space_write_1(iot, ioh, MCD_CTL2, 0x0c); /* XXX */ 1284 mbx->blkno += 1; 1285 mbx->skip += mbx->sz; 1286 if (--mbx->nblk > 0) 1287 goto nextblock; 1288 1289 mbx->state = MCD_S_IDLE; 1290 1291 /* Return buffer. */ 1292 bp->b_resid = 0; 1293 disk_unbusy(&sc->sc_dk, bp->b_bcount, (bp->b_flags & B_READ)); 1294 biodone(bp); 1295 1296 mcdstart(sc); 1297 return 1; 1298 1299 hold: 1300 if (mbx->count-- < 0) { 1301 printf("%s: timeout in state %d", 1302 sc->sc_dev.dv_xname, mbx->state); 1303 goto readerr; 1304 } 1305 1306 #if 0 1307 printf("%s: sleep in state %d\n", sc->sc_dev.dv_xname, 1308 mbx->state); 1309 #endif 1310 callout_reset(&sc->sc_pintr_ch, hz / 100, 1311 mcd_pseudointr, sc); 1312 return -1; 1313 } 1314 1315 readerr: 1316 if (mbx->retry-- > 0) { 1317 printf("; retrying\n"); 1318 goto tryagain; 1319 } else 1320 printf("; giving up\n"); 1321 1322 changed: 1323 /* Invalidate the buffer. */ 1324 bp->b_error = EIO; 1325 bp->b_resid = bp->b_bcount - mbx->skip; 1326 disk_unbusy(&sc->sc_dk, (bp->b_bcount - bp->b_resid), 1327 (bp->b_flags & B_READ)); 1328 biodone(bp); 1329 1330 mcdstart(sc); 1331 return -1; 1332 1333 #ifdef notyet 1334 printf("%s: unit timeout; resetting\n", sc->sc_dev.dv_xname); 1335 bus_space_write_1(iot, ioh, MCD_RESET, MCD_CMDRESET); 1336 delay(300000); 1337 (void) mcd_getstat(sc, 1); 1338 (void) mcd_getstat(sc, 1); 1339 /*sc->status &= ~MCD_ST_DSKCHNG; */ 1340 sc->debug = 1; /* preventive set debug mode */ 1341 #endif 1342 } 1343 1344 void 1345 mcd_soft_reset(sc) 1346 struct mcd_softc *sc; 1347 { 1348 1349 sc->debug = 0; 1350 sc->flags = 0; 1351 sc->lastmode = MCD_MD_UNKNOWN; 1352 sc->lastupc = MCD_UPC_UNKNOWN; 1353 sc->audio_status = CD_AS_AUDIO_INVALID; 1354 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MCD_CTL2, 0x0c); /* XXX */ 1355 } 1356 1357 int 1358 mcd_hard_reset(sc) 1359 struct mcd_softc *sc; 1360 { 1361 struct mcd_mbox mbx; 1362 1363 mcd_soft_reset(sc); 1364 1365 mbx.cmd.opcode = MCD_CMDRESET; 1366 mbx.cmd.length = 0; 1367 mbx.res.length = 0; 1368 return mcd_send(sc, &mbx, 0); 1369 } 1370 1371 int 1372 mcd_setmode(sc, mode) 1373 struct mcd_softc *sc; 1374 int mode; 1375 { 1376 struct mcd_mbox mbx; 1377 int error; 1378 1379 if (sc->lastmode == mode) 1380 return 0; 1381 if (sc->debug) 1382 printf("%s: setting mode to %d\n", sc->sc_dev.dv_xname, mode); 1383 sc->lastmode = MCD_MD_UNKNOWN; 1384 1385 mbx.cmd.opcode = MCD_CMDSETMODE; 1386 mbx.cmd.length = sizeof(mbx.cmd.data.datamode); 1387 mbx.cmd.data.datamode.mode = mode; 1388 mbx.res.length = 0; 1389 if ((error = mcd_send(sc, &mbx, 1)) != 0) 1390 return error; 1391 1392 sc->lastmode = mode; 1393 return 0; 1394 } 1395 1396 int 1397 mcd_setupc(sc, upc) 1398 struct mcd_softc *sc; 1399 int upc; 1400 { 1401 struct mcd_mbox mbx; 1402 int error; 1403 1404 if (sc->lastupc == upc) 1405 return 0; 1406 if (sc->debug) 1407 printf("%s: setting upc to %d\n", sc->sc_dev.dv_xname, upc); 1408 sc->lastupc = MCD_UPC_UNKNOWN; 1409 1410 mbx.cmd.opcode = MCD_CMDCONFIGDRIVE; 1411 mbx.cmd.length = sizeof(mbx.cmd.data.config) - 1; 1412 mbx.cmd.data.config.subcommand = MCD_CF_READUPC; 1413 mbx.cmd.data.config.data1 = upc; 1414 mbx.res.length = 0; 1415 if ((error = mcd_send(sc, &mbx, 1)) != 0) 1416 return error; 1417 1418 sc->lastupc = upc; 1419 return 0; 1420 } 1421 1422 int 1423 mcd_toc_header(sc, th) 1424 struct mcd_softc *sc; 1425 struct ioc_toc_header *th; 1426 { 1427 1428 if (sc->debug) 1429 printf("%s: mcd_toc_header: reading toc header\n", 1430 sc->sc_dev.dv_xname); 1431 1432 th->len = msf2hsg(sc->volinfo.vol_msf, 0); 1433 th->starting_track = bcd2bin(sc->volinfo.trk_low); 1434 th->ending_track = bcd2bin(sc->volinfo.trk_high); 1435 1436 return 0; 1437 } 1438 1439 int 1440 mcd_read_toc(sc) 1441 struct mcd_softc *sc; 1442 { 1443 struct ioc_toc_header th; 1444 union mcd_qchninfo q; 1445 int error, trk, idx, retry; 1446 1447 if ((error = mcd_toc_header(sc, &th)) != 0) 1448 return error; 1449 1450 if ((error = mcd_stop(sc)) != 0) 1451 return error; 1452 1453 if (sc->debug) 1454 printf("%s: read_toc: reading qchannel info\n", 1455 sc->sc_dev.dv_xname); 1456 1457 for (trk = th.starting_track; trk <= th.ending_track; trk++) 1458 sc->toc[trk].toc.idx_no = 0x00; 1459 trk = th.ending_track - th.starting_track + 1; 1460 for (retry = 300; retry && trk > 0; retry--) { 1461 if (mcd_getqchan(sc, &q, CD_TRACK_INFO) != 0) 1462 break; 1463 if (q.toc.trk_no != 0x00 || q.toc.idx_no == 0x00) 1464 continue; 1465 idx = bcd2bin(q.toc.idx_no); 1466 if (idx < MCD_MAXTOCS && 1467 sc->toc[idx].toc.idx_no == 0x00) { 1468 sc->toc[idx] = q; 1469 trk--; 1470 } 1471 } 1472 1473 /* Inform the drive that we're finished so it turns off the light. */ 1474 if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0) 1475 return error; 1476 1477 if (trk != 0) 1478 return EINVAL; 1479 1480 /* Add a fake last+1 for mcd_playtracks(). */ 1481 idx = th.ending_track + 1; 1482 sc->toc[idx].toc.control = sc->toc[idx-1].toc.control; 1483 sc->toc[idx].toc.addr_type = sc->toc[idx-1].toc.addr_type; 1484 sc->toc[idx].toc.trk_no = 0x00; 1485 sc->toc[idx].toc.idx_no = 0xaa; 1486 sc->toc[idx].toc.absolute_pos[0] = sc->volinfo.vol_msf[0]; 1487 sc->toc[idx].toc.absolute_pos[1] = sc->volinfo.vol_msf[1]; 1488 sc->toc[idx].toc.absolute_pos[2] = sc->volinfo.vol_msf[2]; 1489 1490 return 0; 1491 } 1492 1493 int 1494 mcd_toc_entries(sc, te, entries, count) 1495 struct mcd_softc *sc; 1496 struct ioc_read_toc_entry *te; 1497 struct cd_toc_entry *entries; 1498 int *count; 1499 { 1500 int len = te->data_len; 1501 struct ioc_toc_header header; 1502 u_char trk; 1503 daddr_t lba; 1504 int error, n; 1505 1506 if (len < sizeof(struct cd_toc_entry)) 1507 return EINVAL; 1508 if (te->address_format != CD_MSF_FORMAT && 1509 te->address_format != CD_LBA_FORMAT) 1510 return EINVAL; 1511 1512 /* Copy the TOC header. */ 1513 if ((error = mcd_toc_header(sc, &header)) != 0) 1514 return error; 1515 1516 /* Verify starting track. */ 1517 trk = te->starting_track; 1518 if (trk == 0x00) 1519 trk = header.starting_track; 1520 else if (trk == 0xaa) 1521 trk = header.ending_track + 1; 1522 else if (trk < header.starting_track || 1523 trk > header.ending_track + 1) 1524 return EINVAL; 1525 1526 /* Copy the TOC data. */ 1527 for (n = 0; trk <= header.ending_track + 1; n++, trk++) { 1528 if (n * sizeof entries[0] > len) 1529 break; 1530 if (sc->toc[trk].toc.idx_no == 0x00) 1531 continue; 1532 entries[n].control = sc->toc[trk].toc.control; 1533 entries[n].addr_type = sc->toc[trk].toc.addr_type; 1534 entries[n].track = bcd2bin(sc->toc[trk].toc.idx_no); 1535 switch (te->address_format) { 1536 case CD_MSF_FORMAT: 1537 entries[n].addr.addr[0] = 0; 1538 entries[n].addr.addr[1] = bcd2bin(sc->toc[trk].toc.absolute_pos[0]); 1539 entries[n].addr.addr[2] = bcd2bin(sc->toc[trk].toc.absolute_pos[1]); 1540 entries[n].addr.addr[3] = bcd2bin(sc->toc[trk].toc.absolute_pos[2]); 1541 break; 1542 case CD_LBA_FORMAT: 1543 lba = msf2hsg(sc->toc[trk].toc.absolute_pos, 0); 1544 entries[n].addr.addr[0] = lba >> 24; 1545 entries[n].addr.addr[1] = lba >> 16; 1546 entries[n].addr.addr[2] = lba >> 8; 1547 entries[n].addr.addr[3] = lba; 1548 break; 1549 } 1550 } 1551 1552 *count = n; 1553 return 0; 1554 } 1555 1556 int 1557 mcd_stop(sc) 1558 struct mcd_softc *sc; 1559 { 1560 struct mcd_mbox mbx; 1561 int error; 1562 1563 if (sc->debug) 1564 printf("%s: mcd_stop: stopping play\n", sc->sc_dev.dv_xname); 1565 1566 mbx.cmd.opcode = MCD_CMDSTOPAUDIO; 1567 mbx.cmd.length = 0; 1568 mbx.res.length = 0; 1569 if ((error = mcd_send(sc, &mbx, 1)) != 0) 1570 return error; 1571 1572 sc->audio_status = CD_AS_PLAY_COMPLETED; 1573 return 0; 1574 } 1575 1576 int 1577 mcd_getqchan(sc, q, qchn) 1578 struct mcd_softc *sc; 1579 union mcd_qchninfo *q; 1580 int qchn; 1581 { 1582 struct mcd_mbox mbx; 1583 int error; 1584 1585 if (qchn == CD_TRACK_INFO) { 1586 if ((error = mcd_setmode(sc, MCD_MD_TOC)) != 0) 1587 return error; 1588 } else { 1589 if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0) 1590 return error; 1591 } 1592 if (qchn == CD_MEDIA_CATALOG) { 1593 if ((error = mcd_setupc(sc, MCD_UPC_ENABLE)) != 0) 1594 return error; 1595 } else { 1596 if ((error = mcd_setupc(sc, MCD_UPC_DISABLE)) != 0) 1597 return error; 1598 } 1599 1600 mbx.cmd.opcode = MCD_CMDGETQCHN; 1601 mbx.cmd.length = 0; 1602 mbx.res.length = sizeof(mbx.res.data.qchninfo); 1603 if ((error = mcd_send(sc, &mbx, 1)) != 0) 1604 return error; 1605 1606 *q = mbx.res.data.qchninfo; 1607 return 0; 1608 } 1609 1610 int 1611 mcd_read_subchannel(sc, ch, info) 1612 struct mcd_softc *sc; 1613 struct ioc_read_subchannel *ch; 1614 struct cd_sub_channel_info *info; 1615 { 1616 int len = ch->data_len; 1617 union mcd_qchninfo q; 1618 daddr_t lba; 1619 int error; 1620 1621 if (sc->debug) 1622 printf("%s: subchan: af=%d df=%d\n", sc->sc_dev.dv_xname, 1623 ch->address_format, ch->data_format); 1624 1625 if (len > sizeof(*info) || len < sizeof(info->header)) 1626 return EINVAL; 1627 if (ch->address_format != CD_MSF_FORMAT && 1628 ch->address_format != CD_LBA_FORMAT) 1629 return EINVAL; 1630 if (ch->data_format != CD_CURRENT_POSITION && 1631 ch->data_format != CD_MEDIA_CATALOG) 1632 return EINVAL; 1633 1634 if ((error = mcd_getqchan(sc, &q, ch->data_format)) != 0) 1635 return error; 1636 1637 info->header.audio_status = sc->audio_status; 1638 info->what.media_catalog.data_format = ch->data_format; 1639 1640 switch (ch->data_format) { 1641 case CD_MEDIA_CATALOG: 1642 info->what.media_catalog.mc_valid = 1; 1643 #if 0 1644 info->what.media_catalog.mc_number = 1645 #endif 1646 break; 1647 1648 case CD_CURRENT_POSITION: 1649 info->what.position.track_number = bcd2bin(q.current.trk_no); 1650 info->what.position.index_number = bcd2bin(q.current.idx_no); 1651 switch (ch->address_format) { 1652 case CD_MSF_FORMAT: 1653 info->what.position.reladdr.addr[0] = 0; 1654 info->what.position.reladdr.addr[1] = bcd2bin(q.current.relative_pos[0]); 1655 info->what.position.reladdr.addr[2] = bcd2bin(q.current.relative_pos[1]); 1656 info->what.position.reladdr.addr[3] = bcd2bin(q.current.relative_pos[2]); 1657 info->what.position.absaddr.addr[0] = 0; 1658 info->what.position.absaddr.addr[1] = bcd2bin(q.current.absolute_pos[0]); 1659 info->what.position.absaddr.addr[2] = bcd2bin(q.current.absolute_pos[1]); 1660 info->what.position.absaddr.addr[3] = bcd2bin(q.current.absolute_pos[2]); 1661 break; 1662 case CD_LBA_FORMAT: 1663 lba = msf2hsg(q.current.relative_pos, 1); 1664 /* 1665 * Pre-gap has index number of 0, and decreasing MSF 1666 * address. Must be converted to negative LBA, per 1667 * SCSI spec. 1668 */ 1669 if (info->what.position.index_number == 0x00) 1670 lba = -lba; 1671 info->what.position.reladdr.addr[0] = lba >> 24; 1672 info->what.position.reladdr.addr[1] = lba >> 16; 1673 info->what.position.reladdr.addr[2] = lba >> 8; 1674 info->what.position.reladdr.addr[3] = lba; 1675 lba = msf2hsg(q.current.absolute_pos, 0); 1676 info->what.position.absaddr.addr[0] = lba >> 24; 1677 info->what.position.absaddr.addr[1] = lba >> 16; 1678 info->what.position.absaddr.addr[2] = lba >> 8; 1679 info->what.position.absaddr.addr[3] = lba; 1680 break; 1681 } 1682 break; 1683 } 1684 1685 return 0; 1686 } 1687 1688 int 1689 mcd_playtracks(sc, p) 1690 struct mcd_softc *sc; 1691 struct ioc_play_track *p; 1692 { 1693 struct mcd_mbox mbx; 1694 int a = p->start_track; 1695 int z = p->end_track; 1696 int error; 1697 1698 if (sc->debug) 1699 printf("%s: playtracks: from %d:%d to %d:%d\n", 1700 sc->sc_dev.dv_xname, 1701 a, p->start_index, z, p->end_index); 1702 1703 if (a < bcd2bin(sc->volinfo.trk_low) || 1704 a > bcd2bin(sc->volinfo.trk_high) || 1705 a > z || 1706 z < bcd2bin(sc->volinfo.trk_low) || 1707 z > bcd2bin(sc->volinfo.trk_high)) 1708 return EINVAL; 1709 1710 if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0) 1711 return error; 1712 1713 mbx.cmd.opcode = MCD_CMDREADSINGLESPEED; 1714 mbx.cmd.length = sizeof(mbx.cmd.data.play); 1715 mbx.cmd.data.play.start_msf[0] = sc->toc[a].toc.absolute_pos[0]; 1716 mbx.cmd.data.play.start_msf[1] = sc->toc[a].toc.absolute_pos[1]; 1717 mbx.cmd.data.play.start_msf[2] = sc->toc[a].toc.absolute_pos[2]; 1718 mbx.cmd.data.play.end_msf[0] = sc->toc[z+1].toc.absolute_pos[0]; 1719 mbx.cmd.data.play.end_msf[1] = sc->toc[z+1].toc.absolute_pos[1]; 1720 mbx.cmd.data.play.end_msf[2] = sc->toc[z+1].toc.absolute_pos[2]; 1721 sc->lastpb = mbx.cmd; 1722 mbx.res.length = 0; 1723 return mcd_send(sc, &mbx, 1); 1724 } 1725 1726 int 1727 mcd_playmsf(sc, p) 1728 struct mcd_softc *sc; 1729 struct ioc_play_msf *p; 1730 { 1731 struct mcd_mbox mbx; 1732 int error; 1733 1734 if (sc->debug) 1735 printf("%s: playmsf: from %d:%d.%d to %d:%d.%d\n", 1736 sc->sc_dev.dv_xname, 1737 p->start_m, p->start_s, p->start_f, 1738 p->end_m, p->end_s, p->end_f); 1739 1740 if ((p->start_m * 60 * 75 + p->start_s * 75 + p->start_f) >= 1741 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f)) 1742 return EINVAL; 1743 1744 if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0) 1745 return error; 1746 1747 mbx.cmd.opcode = MCD_CMDREADSINGLESPEED; 1748 mbx.cmd.length = sizeof(mbx.cmd.data.play); 1749 mbx.cmd.data.play.start_msf[0] = bin2bcd(p->start_m); 1750 mbx.cmd.data.play.start_msf[1] = bin2bcd(p->start_s); 1751 mbx.cmd.data.play.start_msf[2] = bin2bcd(p->start_f); 1752 mbx.cmd.data.play.end_msf[0] = bin2bcd(p->end_m); 1753 mbx.cmd.data.play.end_msf[1] = bin2bcd(p->end_s); 1754 mbx.cmd.data.play.end_msf[2] = bin2bcd(p->end_f); 1755 sc->lastpb = mbx.cmd; 1756 mbx.res.length = 0; 1757 return mcd_send(sc, &mbx, 1); 1758 } 1759 1760 int 1761 mcd_playblocks(sc, p) 1762 struct mcd_softc *sc; 1763 struct ioc_play_blocks *p; 1764 { 1765 struct mcd_mbox mbx; 1766 int error; 1767 1768 if (sc->debug) 1769 printf("%s: playblocks: blkno %d length %d\n", 1770 sc->sc_dev.dv_xname, p->blk, p->len); 1771 1772 if (p->blk > sc->disksize || p->len > sc->disksize || 1773 (p->blk + p->len) > sc->disksize) 1774 return 0; 1775 1776 if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0) 1777 return error; 1778 1779 mbx.cmd.opcode = MCD_CMDREADSINGLESPEED; 1780 mbx.cmd.length = sizeof(mbx.cmd.data.play); 1781 hsg2msf(p->blk, mbx.cmd.data.play.start_msf); 1782 hsg2msf(p->blk + p->len, mbx.cmd.data.play.end_msf); 1783 sc->lastpb = mbx.cmd; 1784 mbx.res.length = 0; 1785 return mcd_send(sc, &mbx, 1); 1786 } 1787 1788 int 1789 mcd_pause(sc) 1790 struct mcd_softc *sc; 1791 { 1792 union mcd_qchninfo q; 1793 int error; 1794 1795 /* Verify current status. */ 1796 if (sc->audio_status != CD_AS_PLAY_IN_PROGRESS) { 1797 printf("%s: pause: attempted when not playing\n", 1798 sc->sc_dev.dv_xname); 1799 return EINVAL; 1800 } 1801 1802 /* Get the current position. */ 1803 if ((error = mcd_getqchan(sc, &q, CD_CURRENT_POSITION)) != 0) 1804 return error; 1805 1806 /* Copy it into lastpb. */ 1807 sc->lastpb.data.seek.start_msf[0] = q.current.absolute_pos[0]; 1808 sc->lastpb.data.seek.start_msf[1] = q.current.absolute_pos[1]; 1809 sc->lastpb.data.seek.start_msf[2] = q.current.absolute_pos[2]; 1810 1811 /* Stop playing. */ 1812 if ((error = mcd_stop(sc)) != 0) 1813 return error; 1814 1815 /* Set the proper status and exit. */ 1816 sc->audio_status = CD_AS_PLAY_PAUSED; 1817 return 0; 1818 } 1819 1820 int 1821 mcd_resume(sc) 1822 struct mcd_softc *sc; 1823 { 1824 struct mcd_mbox mbx; 1825 int error; 1826 1827 if (sc->audio_status != CD_AS_PLAY_PAUSED) 1828 return EINVAL; 1829 1830 if ((error = mcd_setmode(sc, MCD_MD_COOKED)) != 0) 1831 return error; 1832 1833 mbx.cmd = sc->lastpb; 1834 mbx.res.length = 0; 1835 return mcd_send(sc, &mbx, 1); 1836 } 1837 1838 int 1839 mcd_eject(sc) 1840 struct mcd_softc *sc; 1841 { 1842 struct mcd_mbox mbx; 1843 1844 mbx.cmd.opcode = MCD_CMDEJECTDISK; 1845 mbx.cmd.length = 0; 1846 mbx.res.length = 0; 1847 return mcd_send(sc, &mbx, 0); 1848 } 1849 1850 int 1851 mcd_setlock(sc, mode) 1852 struct mcd_softc *sc; 1853 int mode; 1854 { 1855 struct mcd_mbox mbx; 1856 1857 mbx.cmd.opcode = MCD_CMDSETLOCK; 1858 mbx.cmd.length = sizeof(mbx.cmd.data.lockmode); 1859 mbx.cmd.data.lockmode.mode = mode; 1860 mbx.res.length = 0; 1861 return mcd_send(sc, &mbx, 1); 1862 } 1863
Indexes created Tue Sep 30 07:10:03 GMT 2025