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
7 * Rewrote probe routine to work on newer Mitsumi drives.
8 * Additional changes (C) 1994 by Jordan K. Hubbard
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
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.
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.
45 #include <sys/cdefs.h>
46 __FBSDID("$FreeBSD$");
47 static const char __used COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore";
49 #include <sys/param.h>
50 #include <sys/systm.h>
51 #include <sys/kernel.h>
53 #include <sys/fcntl.h>
59 #include <machine/bus.h>
60 #include <machine/resource.h>
63 #include <isa/isavar.h>
65 #include <dev/mcd/mcdreg.h>
66 #include <dev/mcd/mcdvar.h>
68 #define MCD_TRACE(format, args...) \
71 device_printf(sc->dev, "status=0x%02x: ", \
73 printf(format, ## args); \
80 #define MCDVALID 0x0001 /* parameters loaded */
81 #define MCDINIT 0x0002 /* device is init'd */
82 #define MCDNEWMODEL 0x0004 /* device is new model */
83 #define MCDLABEL 0x0008 /* label is read */
84 #define MCDPROBING 0x0010 /* probing */
85 #define MCDREADRAW 0x0020 /* read raw mode (2352 bytes) */
86 #define MCDVOLINFO 0x0040 /* already read volinfo */
87 #define MCDTOC 0x0080 /* already read toc */
88 #define MCDMBXBSY 0x0100 /* local mbx is busy */
91 #define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */
92 #define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */
93 #define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */
94 #define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */
96 /* These are apparently the different states a mitsumi can get up to */
97 #define MCDCDABSENT 0x0030
98 #define MCDCDPRESENT 0x0020
99 #define MCDSCLOSED 0x0080
100 #define MCDSOPEN 0x00a0
102 #define MCD_MD_UNKNOWN (-1)
104 #define MCD_TYPE_UNKNOWN 0
105 #define MCD_TYPE_LU002S 1
106 #define MCD_TYPE_LU005S 2
107 #define MCD_TYPE_LU006S 3
108 #define MCD_TYPE_FX001 4
109 #define MCD_TYPE_FX001D 5
111 /* reader state machine */
112 #define MCD_S_BEGIN 0
113 #define MCD_S_BEGIN1 1
114 #define MCD_S_WAITSTAT 2
115 #define MCD_S_WAITMODE 3
116 #define MCD_S_WAITREAD 4
119 static void mcd_start(struct mcd_softc *);
121 static void mcd_configure(struct mcd_softc *sc);
123 static int mcd_get(struct mcd_softc *, char *buf, int nmax);
124 static int mcd_setflags(struct mcd_softc *);
125 static int mcd_getstat(struct mcd_softc *,int sflg);
126 static int mcd_send(struct mcd_softc *, int cmd,int nretrys);
127 static void hsg2msf(int hsg, bcd_t *msf);
128 static int msf2hsg(bcd_t *msf, int relative);
129 static int mcd_volinfo(struct mcd_softc *);
130 static int mcd_waitrdy(struct mcd_softc *,int dly);
131 static timeout_t mcd_timeout;
132 static void mcd_doread(struct mcd_softc *, int state, struct mcd_mbx *mbxin);
133 static void mcd_soft_reset(struct mcd_softc *);
134 static int mcd_hard_reset(struct mcd_softc *);
135 static int mcd_setmode(struct mcd_softc *, int mode);
136 static int mcd_getqchan(struct mcd_softc *, struct mcd_qchninfo *q);
137 static int mcd_subchan(struct mcd_softc *, struct ioc_read_subchannel *sc,
139 static int mcd_toc_header(struct mcd_softc *, struct ioc_toc_header *th);
140 static int mcd_read_toc(struct mcd_softc *);
141 static int mcd_toc_entrys(struct mcd_softc *, struct ioc_read_toc_entry *te);
143 static int mcd_toc_entry(struct mcd_softc *, struct ioc_read_toc_single_entry *te);
145 static int mcd_stop(struct mcd_softc *);
146 static int mcd_eject(struct mcd_softc *);
147 static int mcd_inject(struct mcd_softc *);
148 static int mcd_playtracks(struct mcd_softc *, struct ioc_play_track *pt);
149 static int mcd_play(struct mcd_softc *, struct mcd_read2 *pb);
150 static int mcd_playmsf(struct mcd_softc *, struct ioc_play_msf *pt);
151 static int mcd_playblocks(struct mcd_softc *, struct ioc_play_blocks *);
152 static int mcd_pause(struct mcd_softc *);
153 static int mcd_resume(struct mcd_softc *);
154 static int mcd_lock_door(struct mcd_softc *, int lock);
155 static int mcd_close_tray(struct mcd_softc *);
156 static int mcd_size(struct cdev *dev);
158 static d_open_t mcdopen;
159 static d_close_t mcdclose;
160 static d_ioctl_t mcdioctl;
161 static d_strategy_t mcdstrategy;
163 static struct cdevsw mcd_cdevsw = {
164 .d_version = D_VERSION,
169 .d_strategy = mcdstrategy,
171 .d_flags = D_DISK | D_NEEDGIANT,
175 #define MCD_RDRETRYS 8
177 #define CLOSE_TRAY_SECS 8
178 #define DISK_SENSE_SECS 3
182 #define RDELAY_WAITSTAT 300
183 #define RDELAY_WAITMODE 300
184 #define RDELAY_WAITREAD 800
187 #define DELAY_GETREPLY 5000000
190 mcd_attach(struct mcd_softc *sc)
194 unit = device_get_unit(sc->dev);
196 sc->data.flags |= MCDINIT;
198 bioq_init(&sc->data.head);
201 /* wire controller for interrupts and dma */
204 /* name filled in probe */
205 sc->mcd_dev_t = make_dev(&mcd_cdevsw, 8 * unit,
206 UID_ROOT, GID_OPERATOR, 0640, "mcd%d", unit);
208 sc->mcd_dev_t->si_drv1 = (void *)sc;
214 mcdopen(struct cdev *dev, int flags, int fmt, struct thread *td)
216 struct mcd_softc *sc;
219 sc = (struct mcd_softc *)dev->si_drv1;
222 if (!(sc->data.flags & MCDINIT))
225 /* invalidated in the meantime? mark all open part's invalid */
226 if (!(sc->data.flags & MCDVALID) && sc->data.openflags)
229 if (mcd_getstat(sc, 1) == -1)
232 if ( (sc->data.status & (MCDDSKCHNG|MCDDOOROPEN))
233 || !(sc->data.status & MCDDSKIN))
234 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) {
235 (void) tsleep((caddr_t)sc, PSOCK | PCATCH, "mcdsn1", hz/WAIT_FRAC);
236 if ((r = mcd_getstat(sc, 1)) == -1)
242 if (sc->data.status & MCDDOOROPEN) {
243 device_printf(sc->dev, "door is open\n");
246 if (!(sc->data.status & MCDDSKIN)) {
247 device_printf(sc->dev, "no CD inside\n");
250 if (sc->data.status & MCDDSKCHNG) {
251 device_printf(sc->dev, "CD not sensed\n");
255 if (mcd_size(dev) < 0) {
256 device_printf(sc->dev, "failed to get disk size\n");
260 sc->data.openflags = 1;
261 sc->data.partflags |= MCDREADRAW;
262 sc->data.flags |= MCDVALID;
264 (void) mcd_lock_door(sc, MCD_LK_LOCK);
265 if (!(sc->data.flags & MCDVALID))
268 return mcd_read_toc(sc);
272 mcdclose(struct cdev *dev, int flags, int fmt, struct thread *td)
274 struct mcd_softc *sc;
276 sc = (struct mcd_softc *)dev->si_drv1;
278 if (!(sc->data.flags & MCDINIT) || !sc->data.openflags)
281 (void) mcd_lock_door(sc, MCD_LK_UNLOCK);
282 sc->data.openflags = 0;
283 sc->data.partflags &= ~MCDREADRAW;
289 mcdstrategy(struct bio *bp)
291 struct mcd_softc *sc;
293 sc = (struct mcd_softc *)bp->bio_dev->si_drv1;
295 /* if device invalidated (e.g. media change, door open), error */
296 if (!(sc->data.flags & MCDVALID)) {
297 device_printf(sc->dev, "media changed\n");
303 if (!(bp->bio_cmd == BIO_READ)) {
304 bp->bio_error = EROFS;
308 /* no data to read */
309 if (bp->bio_bcount == 0)
312 if (!(sc->data.flags & MCDTOC)) {
320 bioq_disksort(&sc->data.head, bp);
322 /* now check whether we can perform processing */
327 bp->bio_flags |= BIO_ERROR;
329 bp->bio_resid = bp->bio_bcount;
335 mcd_start(struct mcd_softc *sc)
339 if (sc->data.flags & MCDMBXBSY) {
343 bp = bioq_takefirst(&sc->data.head);
345 /* block found to process, dequeue */
346 /*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/
347 sc->data.flags |= MCDMBXBSY;
353 sc->data.mbx.retry = MCD_RETRYS;
354 sc->data.mbx.bp = bp;
356 mcd_doread(sc, MCD_S_BEGIN,&(sc->data.mbx));
361 mcdioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
363 struct mcd_softc *sc;
366 sc = (struct mcd_softc *)dev->si_drv1;
368 if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
370 MCD_TRACE("ioctl called 0x%lx\n", cmd);
383 return mcd_eject(sc);
391 return mcd_hard_reset(sc);
393 return mcd_lock_door(sc, MCD_LK_UNLOCK);
395 return mcd_lock_door(sc, MCD_LK_LOCK);
397 return mcd_inject(sc);
400 if (!(sc->data.flags & MCDVALID)) {
401 if ( (sc->data.status & (MCDDSKCHNG|MCDDOOROPEN))
402 || !(sc->data.status & MCDDSKIN))
403 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) {
404 (void) tsleep((caddr_t)sc, PSOCK | PCATCH, "mcdsn2", hz/WAIT_FRAC);
405 if ((r = mcd_getstat(sc, 1)) == -1)
410 if ( (sc->data.status & (MCDDOOROPEN|MCDDSKCHNG))
411 || !(sc->data.status & MCDDSKIN)
415 sc->data.flags |= MCDVALID;
416 sc->data.partflags |= MCDREADRAW;
417 (void) mcd_lock_door(sc, MCD_LK_LOCK);
418 if (!(sc->data.flags & MCDVALID))
424 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize;
426 case DIOCGSECTORSIZE:
427 *(u_int *)addr = sc->data.blksize;
430 case CDIOCPLAYTRACKS:
431 return mcd_playtracks(sc, (struct ioc_play_track *) addr);
432 case CDIOCPLAYBLOCKS:
433 return mcd_playblocks(sc, (struct ioc_play_blocks *) addr);
435 return mcd_playmsf(sc, (struct ioc_play_msf *) addr);
436 case CDIOCREADSUBCHANNEL_SYSSPACE:
437 return mcd_subchan(sc, (struct ioc_read_subchannel *) addr, 1);
438 case CDIOCREADSUBCHANNEL:
439 return mcd_subchan(sc, (struct ioc_read_subchannel *) addr, 0);
440 case CDIOREADTOCHEADER:
441 return mcd_toc_header(sc, (struct ioc_toc_header *) addr);
442 case CDIOREADTOCENTRYS:
443 return mcd_toc_entrys(sc, (struct ioc_read_toc_entry *) addr);
445 return mcd_resume(sc);
447 return mcd_pause(sc);
449 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
461 mcd_size(struct cdev *dev)
463 struct mcd_softc *sc;
466 sc = (struct mcd_softc *)dev->si_drv1;
468 if (mcd_volinfo(sc) == 0) {
469 sc->data.blksize = MCDBLK;
470 size = msf2hsg(sc->data.volinfo.vol_msf, 0);
471 sc->data.disksize = size * (MCDBLK/DEV_BSIZE);
477 /***************************************************************
478 * lower level of driver starts here
479 **************************************************************/
484 0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00,
485 0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00
490 0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07,
496 mcd_configure(struct mcd_softc *sc)
498 MCD_WRITE(sc, MCD_REG_CONFIG, sc->data.config);
502 /* Wait for non-busy - return 0 on timeout */
504 twiddle_thumbs(struct mcd_softc *sc, int count, char *whine)
508 for (i = 0; i < count; i++) {
509 if (!(MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL))
513 device_printf(sc->dev, "timeout %s\n", whine);
517 /* check to see if a Mitsumi CD-ROM is attached to the ISA bus */
520 mcd_probe(struct mcd_softc *sc)
523 unsigned char stbytes[3];
525 sc->data.flags = MCDPROBING;
528 /* get irq/drq configuration word */
529 sc->data.config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/
535 MCD_WRITE(sc, MCD_FLAGS, M_RESET);
538 * delay awhile by getting any pending garbage (old data) and
541 for (i = 1000000; i != 0; i--)
542 (void)MCD_READ(sc, MCD_FLAGS);
545 MCD_WRITE(sc, MCD_DATA, MCD_CMDGETSTAT);
546 if (!twiddle_thumbs(sc, 1000000, "getting status"))
547 return (ENXIO); /* Timeout */
548 /* Get version information */
549 MCD_WRITE(sc, MCD_DATA, MCD_CMDCONTINFO);
550 for (j = 0; j < 3; j++) {
551 if (!twiddle_thumbs(sc, 3000, "getting version info"))
553 stbytes[j] = (MCD_READ(sc, MCD_DATA) & 0xFF);
555 if (stbytes[1] == stbytes[2])
557 if (stbytes[2] >= 4 || stbytes[1] != 'M') {
558 MCD_WRITE(sc, MCD_CTRL, M_PICKLE);
559 sc->data.flags |= MCDNEWMODEL;
561 sc->data.read_command = MCD_CMDSINGLESPEEDREAD;
562 switch (stbytes[1]) {
564 if (stbytes[2] <= 2) {
565 sc->data.type = MCD_TYPE_LU002S;
566 sc->data.name = "Mitsumi LU002S";
567 } else if (stbytes[2] <= 5) {
568 sc->data.type = MCD_TYPE_LU005S;
569 sc->data.name = "Mitsumi LU005S";
571 sc->data.type = MCD_TYPE_LU006S;
572 sc->data.name = "Mitsumi LU006S";
576 sc->data.type = MCD_TYPE_FX001;
577 sc->data.name = "Mitsumi FX001";
580 sc->data.type = MCD_TYPE_FX001D;
581 sc->data.name = "Mitsumi FX001D";
582 sc->data.read_command = MCD_CMDDOUBLESPEEDREAD;
585 sc->data.type = MCD_TYPE_UNKNOWN;
586 sc->data.name = "Mitsumi ???";
591 device_printf(sc->dev, "type %s, version info: %c %x\n",
592 sc->data.name, stbytes[1], stbytes[2]);
599 mcd_waitrdy(struct mcd_softc *sc, int dly)
603 /* wait until flag port senses status ready */
604 for (i=0; i<dly; i+=MIN_DELAY) {
605 if (!(MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL))
613 mcd_getreply(struct mcd_softc *sc, int dly)
616 /* wait data to become ready */
617 if (mcd_waitrdy(sc, dly)<0) {
618 device_printf(sc->dev, "timeout getreply\n");
623 return (MCD_READ(sc, MCD_REG_STATUS) & 0xFF);
627 mcd_getstat(struct mcd_softc *sc, int sflg)
633 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDGETSTAT);
634 i = mcd_getreply(sc, DELAY_GETREPLY);
635 if (i<0 || (i & MCD_ST_CMDCHECK)) {
636 sc->data.curr_mode = MCD_MD_UNKNOWN;
642 if (mcd_setflags(sc) < 0)
644 return (sc->data.status);
648 mcd_setflags(struct mcd_softc *sc)
652 if ( (sc->data.status & (MCDDSKCHNG|MCDDOOROPEN))
653 || !(sc->data.status & MCDDSKIN)) {
654 MCD_TRACE("setflags: sensed DSKCHNG or DOOROPEN or !DSKIN\n");
659 if (sc->data.status & MCDAUDIOBSY)
660 sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
661 else if (sc->data.audio_status == CD_AS_PLAY_IN_PROGRESS)
662 sc->data.audio_status = CD_AS_PLAY_COMPLETED;
667 mcd_get(struct mcd_softc *sc, char *buf, int nmax)
671 for (i=0; i<nmax; i++) {
673 if ((k = mcd_getreply(sc, DELAY_GETREPLY)) < 0) {
674 device_printf(sc->dev, "timeout mcd_get\n");
683 mcd_send(struct mcd_softc *sc, int cmd,int nretrys)
687 /*MCD_TRACE("mcd_send: command = 0x%02x\n",cmd,0,0,0);*/
688 for (i=0; i<nretrys; i++) {
689 MCD_WRITE(sc, MCD_REG_COMMAND, cmd);
690 if ((k=mcd_getstat(sc, 0)) != -1)
694 device_printf(sc->dev, "media changed\n");
698 device_printf(sc->dev, "mcd_send retry cnt exceeded\n");
701 /*MCD_TRACE("mcd_send: done\n",0,0,0,0);*/
706 hsg2msf(int hsg, bcd_t *msf)
709 F_msf(msf) = bin2bcd(hsg % 75);
711 S_msf(msf) = bin2bcd(hsg % 60);
713 M_msf(msf) = bin2bcd(hsg);
717 msf2hsg(bcd_t *msf, int relative)
719 return (bcd2bin(M_msf(msf)) * 60 + bcd2bin(S_msf(msf))) * 75 +
720 bcd2bin(F_msf(msf)) - (!relative) * 150;
724 mcd_volinfo(struct mcd_softc *sc)
727 /* Just return if we already have it */
728 if (sc->data.flags & MCDVOLINFO) return (0);
730 /*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/
732 /* send volume info command */
733 if (mcd_send(sc, MCD_CMDGETVOLINFO,MCD_RETRYS) < 0)
737 if (mcd_get(sc, (char*) &sc->data.volinfo,sizeof(struct mcd_volinfo)) < 0) {
738 device_printf(sc->dev, "mcd_volinfo: error read data\n");
742 if (sc->data.volinfo.trk_low > 0 &&
743 sc->data.volinfo.trk_high >= sc->data.volinfo.trk_low
745 sc->data.flags |= MCDVOLINFO; /* volinfo is OK */
752 /* state machine to process read requests
753 * initialize with MCD_S_BEGIN: calculate sizes, and read status
754 * MCD_S_WAITSTAT: wait for status reply, set mode
755 * MCD_S_WAITMODE: waits for status reply from set mode, set read command
756 * MCD_S_WAITREAD: wait for read ready, read data
759 mcd_timeout(void *arg)
761 struct mcd_softc *sc;
763 sc = (struct mcd_softc *)arg;
765 mcd_doread(sc, sc->ch_state, sc->ch_mbxsave);
769 mcd_doread(struct mcd_softc *sc, int state, struct mcd_mbx *mbxin)
774 struct mcd_read2 rbuf;
778 mbx = (state!=MCD_S_BEGIN) ? sc->ch_mbxsave : mbxin;
784 mbx = sc->ch_mbxsave = mbxin;
789 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDGETSTAT);
790 mbx->count = RDELAY_WAITSTAT;
791 sc->ch_state = MCD_S_WAITSTAT;
792 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
795 sc->ch_state = MCD_S_WAITSTAT;
796 untimeout(mcd_timeout,(caddr_t)sc, sc->ch);
797 if (mbx->count-- >= 0) {
798 if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) {
799 sc->ch_state = MCD_S_WAITSTAT;
800 timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
803 sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
804 if (sc->data.status & MCD_ST_CMDCHECK)
806 if (mcd_setflags(sc) < 0)
808 MCD_TRACE("got WAITSTAT delay=%d\n",
809 RDELAY_WAITSTAT-mbx->count);
810 /* reject, if audio active */
811 if (sc->data.status & MCDAUDIOBSY) {
812 device_printf(sc->dev, "audio is active\n");
817 /* to check for raw/cooked mode */
818 if (sc->data.flags & MCDREADRAW) {
823 mbx->sz = sc->data.blksize;
826 if (rm == sc->data.curr_mode)
829 mbx->count = RDELAY_WAITMODE;
831 sc->data.curr_mode = MCD_MD_UNKNOWN;
833 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSETMODE);
834 MCD_WRITE(sc, MCD_REG_COMMAND, rm);
836 sc->ch_state = MCD_S_WAITMODE;
837 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
840 device_printf(sc->dev, "timeout getstatus\n");
845 sc->ch_state = MCD_S_WAITMODE;
846 untimeout(mcd_timeout, (caddr_t)sc, sc->ch);
847 if (mbx->count-- < 0) {
848 device_printf(sc->dev, "timeout set mode\n");
851 if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) {
852 sc->ch_state = MCD_S_WAITMODE;
853 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100);
856 sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
857 if (sc->data.status & MCD_ST_CMDCHECK) {
858 sc->data.curr_mode = MCD_MD_UNKNOWN;
861 if (mcd_setflags(sc) < 0)
863 sc->data.curr_mode = mbx->mode;
864 MCD_TRACE("got WAITMODE delay=%d\n",
865 RDELAY_WAITMODE-mbx->count);
867 /* for first block */
868 mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz;
872 blknum = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz;
874 MCD_TRACE("mcd_doread: read blknum=%d for bp=%p\n",
877 /* build parameter block */
878 hsg2msf(blknum,rbuf.start_msf);
880 /* send the read command */
882 MCD_WRITE(sc, MCD_REG_COMMAND, sc->data.read_command);
883 MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[0]);
884 MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[1]);
885 MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[2]);
886 MCD_WRITE(sc, MCD_REG_COMMAND, 0);
887 MCD_WRITE(sc, MCD_REG_COMMAND, 0);
888 MCD_WRITE(sc, MCD_REG_COMMAND, 1);
891 /* Spin briefly (<= 2ms) to avoid missing next block */
892 for (i = 0; i < 20; i++) {
893 k = MCD_READ(sc, MCD_FLAGS);
894 if (!(k & MFL_DATA_NOT_AVAIL))
899 mbx->count = RDELAY_WAITREAD;
900 sc->ch_state = MCD_S_WAITREAD;
901 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
904 sc->ch_state = MCD_S_WAITREAD;
905 untimeout(mcd_timeout, (caddr_t)sc, sc->ch);
906 if (mbx->count-- > 0) {
907 k = MCD_READ(sc, MCD_FLAGS);
908 if (!(k & MFL_DATA_NOT_AVAIL)) { /* XXX */
909 MCD_TRACE("got data delay=%d\n",
910 RDELAY_WAITREAD-mbx->count);
913 addr = bp->bio_data + mbx->skip;
915 MCD_WRITE(sc, MCD_REG_CTL2,0x04); /* XXX */
916 for (i=0; i<mbx->sz; i++)
917 *addr++ = MCD_READ(sc, MCD_REG_RDATA);
918 MCD_WRITE(sc, MCD_REG_CTL2,0x0c); /* XXX */
920 k = MCD_READ(sc, MCD_FLAGS);
921 /* If we still have some junk, read it too */
922 if (!(k & MFL_DATA_NOT_AVAIL)) {
923 MCD_WRITE(sc, MCD_REG_CTL2, 0x04); /* XXX */
924 (void)MCD_READ(sc, MCD_REG_RDATA);
925 (void)MCD_READ(sc, MCD_REG_RDATA);
926 MCD_WRITE(sc, MCD_REG_CTL2, 0x0c); /* XXX */
929 if (--mbx->nblk > 0) {
930 mbx->skip += mbx->sz;
938 sc->data.flags &= ~(MCDMBXBSY|MCDREADRAW);
942 if (!(k & MFL_STATUS_NOT_AVAIL)) {
943 sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
944 if (sc->data.status & MCD_ST_CMDCHECK)
946 if (mcd_setflags(sc) < 0)
949 sc->ch_state = MCD_S_WAITREAD;
950 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
953 device_printf(sc->dev, "timeout read data\n");
959 if (mbx->retry-- > 0) {
960 device_printf(sc->dev, "retrying\n");
961 state = MCD_S_BEGIN1;
965 /* invalidate the buffer */
966 bp->bio_flags |= BIO_ERROR;
967 bp->bio_resid = bp->bio_bcount;
970 sc->data.flags &= ~(MCDMBXBSY|MCDREADRAW);
975 device_printf(sc->dev, "media changed\n");
979 device_printf(sc->dev, "unit timeout, resetting\n");
980 MCD_WRITE(sc, MCD_REG_RESET, MCD_CMDRESET);
982 (void)mcd_getstat(sc, 1);
983 (void)mcd_getstat(sc, 1);
984 /*sc->data.status &= ~MCDDSKCHNG; */
985 sc->data.debug = 1; /* preventive set debug mode */
992 mcd_lock_door(struct mcd_softc *sc, int lock)
995 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDLOCKDRV);
996 MCD_WRITE(sc, MCD_REG_COMMAND, lock);
997 if (mcd_getstat(sc, 0) == -1)
1003 mcd_close_tray(struct mcd_softc *sc)
1007 if (mcd_getstat(sc, 1) == -1)
1009 if (sc->data.status & MCDDOOROPEN) {
1010 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDCLOSETRAY);
1011 for (retry = 0; retry < CLOSE_TRAY_SECS * WAIT_FRAC; retry++) {
1012 if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)
1013 (void) tsleep((caddr_t)sc, PSOCK | PCATCH, "mcdcls", hz/WAIT_FRAC);
1015 if ((r = mcd_getstat(sc, 0)) == -1)
1026 mcd_eject(struct mcd_softc *sc)
1030 if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
1032 if (sc->data.status & MCDDOOROPEN)
1034 if ((r = mcd_stop(sc)) == EIO)
1036 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDEJECTDISK);
1037 if (mcd_getstat(sc, 0) == -1)
1043 mcd_inject(struct mcd_softc *sc)
1046 if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
1048 if (sc->data.status & MCDDOOROPEN)
1049 return mcd_close_tray(sc);
1054 mcd_hard_reset(struct mcd_softc *sc)
1057 MCD_WRITE(sc, MCD_REG_RESET, MCD_CMDRESET);
1058 sc->data.curr_mode = MCD_MD_UNKNOWN;
1059 sc->data.audio_status = CD_AS_AUDIO_INVALID;
1064 mcd_soft_reset(struct mcd_softc *sc)
1067 sc->data.flags &= (MCDINIT|MCDPROBING|MCDNEWMODEL);
1068 sc->data.curr_mode = MCD_MD_UNKNOWN;
1069 sc->data.partflags = 0;
1070 sc->data.audio_status = CD_AS_AUDIO_INVALID;
1074 mcd_setmode(struct mcd_softc *sc, int mode)
1078 if (sc->data.curr_mode == mode)
1081 device_printf(sc->dev, "setting mode to %d\n", mode);
1082 for(retry=0; retry<MCD_RETRYS; retry++)
1084 sc->data.curr_mode = MCD_MD_UNKNOWN;
1085 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSETMODE);
1086 MCD_WRITE(sc, MCD_REG_COMMAND, mode);
1087 if ((st = mcd_getstat(sc, 0)) >= 0) {
1088 sc->data.curr_mode = mode;
1092 device_printf(sc->dev, "media changed\n");
1101 mcd_toc_header(struct mcd_softc *sc, struct ioc_toc_header *th)
1105 if ((r = mcd_volinfo(sc)) != 0)
1108 th->starting_track = bcd2bin(sc->data.volinfo.trk_low);
1109 th->ending_track = bcd2bin(sc->data.volinfo.trk_high);
1110 th->len = 2 * sizeof(u_char) /* start & end tracks */ +
1111 (th->ending_track + 1 - th->starting_track + 1) *
1112 sizeof(struct cd_toc_entry);
1118 mcd_read_toc(struct mcd_softc *sc)
1120 struct ioc_toc_header th;
1121 struct mcd_qchninfo q;
1122 int rc, trk, idx, retry;
1124 /* Only read TOC if needed */
1125 if (sc->data.flags & MCDTOC)
1129 device_printf(sc->dev, "reading toc header\n");
1131 if ((rc = mcd_toc_header(sc, &th)) != 0)
1134 if (mcd_send(sc, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0)
1137 if (mcd_setmode(sc, MCD_MD_TOC) != 0)
1141 device_printf(sc->dev, "get_toc reading qchannel info\n");
1143 for(trk=th.starting_track; trk<=th.ending_track; trk++)
1144 sc->data.toc[trk].idx_no = 0;
1145 trk = th.ending_track - th.starting_track + 1;
1146 for(retry=0; retry<600 && trk>0; retry++)
1148 if (mcd_getqchan(sc, &q) < 0) break;
1149 idx = bcd2bin(q.idx_no);
1150 if (idx>=th.starting_track && idx<=th.ending_track && q.trk_no==0) {
1151 if (sc->data.toc[idx].idx_no == 0) {
1152 sc->data.toc[idx] = q;
1158 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1164 /* add a fake last+1 */
1165 idx = th.ending_track + 1;
1166 sc->data.toc[idx].control = sc->data.toc[idx-1].control;
1167 sc->data.toc[idx].addr_type = sc->data.toc[idx-1].addr_type;
1168 sc->data.toc[idx].trk_no = 0;
1169 sc->data.toc[idx].idx_no = MCD_LASTPLUS1;
1170 sc->data.toc[idx].hd_pos_msf[0] = sc->data.volinfo.vol_msf[0];
1171 sc->data.toc[idx].hd_pos_msf[1] = sc->data.volinfo.vol_msf[1];
1172 sc->data.toc[idx].hd_pos_msf[2] = sc->data.volinfo.vol_msf[2];
1176 for (i = th.starting_track; i <= idx; i++)
1177 device_printf(sc->dev, "trk %d idx %d pos %d %d %d\n",
1179 sc->data.toc[i].idx_no > 0x99 ? sc->data.toc[i].idx_no :
1180 bcd2bin(sc->data.toc[i].idx_no),
1181 bcd2bin(sc->data.toc[i].hd_pos_msf[0]),
1182 bcd2bin(sc->data.toc[i].hd_pos_msf[1]),
1183 bcd2bin(sc->data.toc[i].hd_pos_msf[2]));
1186 sc->data.flags |= MCDTOC;
1193 mcd_toc_entry(struct mcd_softc *sc, struct ioc_read_toc_single_entry *te)
1195 struct ioc_toc_header th;
1198 if (te->address_format != CD_MSF_FORMAT
1199 && te->address_format != CD_LBA_FORMAT)
1202 /* Copy the toc header */
1203 if ((rc = mcd_toc_header(sc, &th)) != 0)
1206 /* verify starting track */
1209 trk = th.starting_track;
1210 else if (trk == MCD_LASTPLUS1)
1211 trk = th.ending_track + 1;
1212 else if (trk < th.starting_track || trk > th.ending_track + 1)
1215 /* Make sure we have a valid toc */
1216 if ((rc=mcd_read_toc(sc)) != 0)
1219 /* Copy the TOC data. */
1220 if (sc->data.toc[trk].idx_no == 0)
1223 te->entry.control = sc->data.toc[trk].control;
1224 te->entry.addr_type = sc->data.toc[trk].addr_type;
1226 sc->data.toc[trk].idx_no > 0x99 ? sc->data.toc[trk].idx_no :
1227 bcd2bin(sc->data.toc[trk].idx_no);
1228 switch (te->address_format) {
1230 te->entry.addr.msf.unused = 0;
1231 te->entry.addr.msf.minute = bcd2bin(sc->data.toc[trk].hd_pos_msf[0]);
1232 te->entry.addr.msf.second = bcd2bin(sc->data.toc[trk].hd_pos_msf[1]);
1233 te->entry.addr.msf.frame = bcd2bin(sc->data.toc[trk].hd_pos_msf[2]);
1236 te->entry.addr.lba = htonl(msf2hsg(sc->data.toc[trk].hd_pos_msf, 0));
1244 mcd_toc_entrys(struct mcd_softc *sc, struct ioc_read_toc_entry *te)
1246 struct cd_toc_entry entries[MCD_MAXTOCS];
1247 struct ioc_toc_header th;
1248 int rc, n, trk, len;
1250 if ( te->data_len < sizeof(entries[0])
1251 || (te->data_len % sizeof(entries[0])) != 0
1252 || (te->address_format != CD_MSF_FORMAT
1253 && te->address_format != CD_LBA_FORMAT)
1257 /* Copy the toc header */
1258 if ((rc = mcd_toc_header(sc, &th)) != 0)
1261 /* verify starting track */
1262 trk = te->starting_track;
1264 trk = th.starting_track;
1265 else if (trk == MCD_LASTPLUS1)
1266 trk = th.ending_track + 1;
1267 else if (trk < th.starting_track || trk > th.ending_track + 1)
1270 len = ((th.ending_track + 1 - trk) + 1) *
1272 if (te->data_len < len)
1274 if (len > sizeof(entries))
1277 /* Make sure we have a valid toc */
1278 if ((rc=mcd_read_toc(sc)) != 0)
1281 /* Copy the TOC data. */
1282 for (n = 0; len > 0 && trk <= th.ending_track + 1; trk++) {
1283 if (sc->data.toc[trk].idx_no == 0)
1285 entries[n].control = sc->data.toc[trk].control;
1286 entries[n].addr_type = sc->data.toc[trk].addr_type;
1288 sc->data.toc[trk].idx_no > 0x99 ? sc->data.toc[trk].idx_no :
1289 bcd2bin(sc->data.toc[trk].idx_no);
1290 switch (te->address_format) {
1292 entries[n].addr.msf.unused = 0;
1293 entries[n].addr.msf.minute = bcd2bin(sc->data.toc[trk].hd_pos_msf[0]);
1294 entries[n].addr.msf.second = bcd2bin(sc->data.toc[trk].hd_pos_msf[1]);
1295 entries[n].addr.msf.frame = bcd2bin(sc->data.toc[trk].hd_pos_msf[2]);
1298 entries[n].addr.lba = htonl(msf2hsg(sc->data.toc[trk].hd_pos_msf, 0));
1301 len -= sizeof(struct cd_toc_entry);
1305 /* copy the data back */
1306 return copyout(entries, te->data, n * sizeof(struct cd_toc_entry));
1310 mcd_stop(struct mcd_softc *sc)
1313 /* Verify current status */
1314 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS &&
1315 sc->data.audio_status != CD_AS_PLAY_PAUSED &&
1316 sc->data.audio_status != CD_AS_PLAY_COMPLETED) {
1318 device_printf(sc->dev,
1319 "stop attempted when not playing, audio status %d\n",
1320 sc->data.audio_status);
1323 if (sc->data.audio_status == CD_AS_PLAY_IN_PROGRESS)
1324 if (mcd_send(sc, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0)
1326 sc->data.audio_status = CD_AS_PLAY_COMPLETED;
1331 mcd_getqchan(struct mcd_softc *sc, struct mcd_qchninfo *q)
1334 if (mcd_send(sc, MCD_CMDGETQCHN, MCD_RETRYS) < 0)
1336 if (mcd_get(sc, (char *) q, sizeof(struct mcd_qchninfo)) < 0)
1338 if (sc->data.debug) {
1339 device_printf(sc->dev,
1340 "getqchan control=0x%x addr_type=0x%x trk=%d ind=%d ttm=%d:%d.%d dtm=%d:%d.%d\n",
1341 q->control, q->addr_type,
1344 bcd2bin(q->trk_size_msf[0]),
1345 bcd2bin(q->trk_size_msf[1]),
1346 bcd2bin(q->trk_size_msf[2]),
1347 bcd2bin(q->hd_pos_msf[0]),
1348 bcd2bin(q->hd_pos_msf[1]),
1349 bcd2bin(q->hd_pos_msf[2]));
1355 mcd_subchan(struct mcd_softc *sc, struct ioc_read_subchannel *sch, int nocopyout)
1357 struct mcd_qchninfo q;
1358 struct cd_sub_channel_info data;
1362 device_printf(sc->dev, "subchan af=%d, df=%d\n",
1363 sch->address_format,
1366 if (sch->address_format != CD_MSF_FORMAT &&
1367 sch->address_format != CD_LBA_FORMAT)
1370 if (sch->data_format != CD_CURRENT_POSITION &&
1371 sch->data_format != CD_MEDIA_CATALOG)
1374 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1377 if (mcd_getqchan(sc, &q) < 0)
1380 data.header.audio_status = sc->data.audio_status;
1381 data.what.position.data_format = sch->data_format;
1383 switch (sch->data_format) {
1384 case CD_MEDIA_CATALOG:
1385 data.what.media_catalog.mc_valid = 1;
1386 data.what.media_catalog.mc_number[0] = '\0';
1389 case CD_CURRENT_POSITION:
1390 data.what.position.control = q.control;
1391 data.what.position.addr_type = q.addr_type;
1392 data.what.position.track_number = bcd2bin(q.trk_no);
1393 data.what.position.index_number = bcd2bin(q.idx_no);
1394 switch (sch->address_format) {
1396 data.what.position.reladdr.msf.unused = 0;
1397 data.what.position.reladdr.msf.minute = bcd2bin(q.trk_size_msf[0]);
1398 data.what.position.reladdr.msf.second = bcd2bin(q.trk_size_msf[1]);
1399 data.what.position.reladdr.msf.frame = bcd2bin(q.trk_size_msf[2]);
1400 data.what.position.absaddr.msf.unused = 0;
1401 data.what.position.absaddr.msf.minute = bcd2bin(q.hd_pos_msf[0]);
1402 data.what.position.absaddr.msf.second = bcd2bin(q.hd_pos_msf[1]);
1403 data.what.position.absaddr.msf.frame = bcd2bin(q.hd_pos_msf[2]);
1406 lba = msf2hsg(q.trk_size_msf, 1);
1408 * Pre-gap has index number of 0, and decreasing MSF
1409 * address. Must be converted to negative LBA, per
1412 if (data.what.position.index_number == 0)
1414 data.what.position.reladdr.lba = htonl(lba);
1415 data.what.position.absaddr.lba = htonl(msf2hsg(q.hd_pos_msf, 0));
1422 return copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len));
1423 bcopy(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len));
1428 mcd_playmsf(struct mcd_softc *sc, struct ioc_play_msf *p)
1430 struct mcd_read2 pb;
1433 device_printf(sc->dev, "playmsf: from %d:%d.%d to %d:%d.%d\n",
1434 p->start_m, p->start_s, p->start_f,
1435 p->end_m, p->end_s, p->end_f);
1437 if ((p->start_m * 60 * 75 + p->start_s * 75 + p->start_f) >=
1438 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) ||
1439 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) >
1440 M_msf(sc->data.volinfo.vol_msf) * 60 * 75 +
1441 S_msf(sc->data.volinfo.vol_msf) * 75 +
1442 F_msf(sc->data.volinfo.vol_msf))
1445 pb.start_msf[0] = bin2bcd(p->start_m);
1446 pb.start_msf[1] = bin2bcd(p->start_s);
1447 pb.start_msf[2] = bin2bcd(p->start_f);
1448 pb.end_msf[0] = bin2bcd(p->end_m);
1449 pb.end_msf[1] = bin2bcd(p->end_s);
1450 pb.end_msf[2] = bin2bcd(p->end_f);
1452 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1455 return mcd_play(sc, &pb);
1459 mcd_playtracks(struct mcd_softc *sc, struct ioc_play_track *pt)
1461 struct mcd_read2 pb;
1462 int a = pt->start_track;
1463 int z = pt->end_track;
1466 if ((rc = mcd_read_toc(sc)) != 0)
1470 device_printf(sc->dev, "playtracks from %d:%d to %d:%d\n",
1471 a, pt->start_index, z, pt->end_index);
1473 if ( a < bcd2bin(sc->data.volinfo.trk_low)
1474 || a > bcd2bin(sc->data.volinfo.trk_high)
1476 || z < bcd2bin(sc->data.volinfo.trk_low)
1477 || z > bcd2bin(sc->data.volinfo.trk_high))
1480 for (i = 0; i < 3; i++) {
1481 pb.start_msf[i] = sc->data.toc[a].hd_pos_msf[i];
1482 pb.end_msf[i] = sc->data.toc[z+1].hd_pos_msf[i];
1485 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1488 return mcd_play(sc, &pb);
1492 mcd_playblocks(struct mcd_softc *sc, struct ioc_play_blocks *p)
1494 struct mcd_read2 pb;
1497 device_printf(sc->dev, "playblocks: blkno %d length %d\n",
1500 if (p->blk > sc->data.disksize || p->len > sc->data.disksize ||
1501 p->blk < 0 || p->len < 0 ||
1502 (p->blk + p->len) > sc->data.disksize)
1505 hsg2msf(p->blk, pb.start_msf);
1506 hsg2msf(p->blk + p->len, pb.end_msf);
1508 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1511 return mcd_play(sc, &pb);
1515 mcd_play(struct mcd_softc *sc, struct mcd_read2 *pb)
1517 int retry, st = -1, status;
1519 sc->data.lastpb = *pb;
1520 for(retry=0; retry<MCD_RETRYS; retry++) {
1523 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSINGLESPEEDREAD);
1524 MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[0]);
1525 MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[1]);
1526 MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[2]);
1527 MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[0]);
1528 MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[1]);
1529 MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[2]);
1532 status=mcd_getstat(sc, 0);
1535 else if (status != -2)
1541 device_printf(sc->dev, "media changed\n");
1545 device_printf(sc->dev,
1546 "mcd_play retry=%d, status=0x%02x\n", retry, status);
1549 sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
1554 mcd_pause(struct mcd_softc *sc)
1556 struct mcd_qchninfo q;
1559 /* Verify current status */
1560 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS &&
1561 sc->data.audio_status != CD_AS_PLAY_PAUSED) {
1563 device_printf(sc->dev,
1564 "pause attempted when not playing, audio status %d\n",
1565 sc->data.audio_status);
1569 /* Get the current position */
1570 if (mcd_getqchan(sc, &q) < 0)
1573 /* Copy it into lastpb */
1574 sc->data.lastpb.start_msf[0] = q.hd_pos_msf[0];
1575 sc->data.lastpb.start_msf[1] = q.hd_pos_msf[1];
1576 sc->data.lastpb.start_msf[2] = q.hd_pos_msf[2];
1579 if ((rc=mcd_stop(sc)) != 0)
1582 /* Set the proper status and exit */
1583 sc->data.audio_status = CD_AS_PLAY_PAUSED;
1588 mcd_resume(struct mcd_softc *sc)
1591 if (sc->data.audio_status != CD_AS_PLAY_PAUSED)
1593 return mcd_play(sc, &sc->data.lastpb);