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 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;
294 sc = (struct mcd_softc *)bp->bio_dev->si_drv1;
296 /* if device invalidated (e.g. media change, door open), error */
297 if (!(sc->data.flags & MCDVALID)) {
298 device_printf(sc->dev, "media changed\n");
304 if (!(bp->bio_cmd == BIO_READ)) {
305 bp->bio_error = EROFS;
309 /* no data to read */
310 if (bp->bio_bcount == 0)
313 if (!(sc->data.flags & MCDTOC)) {
322 bioq_disksort(&sc->data.head, bp);
325 /* now check whether we can perform processing */
330 bp->bio_flags |= BIO_ERROR;
332 bp->bio_resid = bp->bio_bcount;
338 mcd_start(struct mcd_softc *sc)
343 if (sc->data.flags & MCDMBXBSY) {
348 bp = bioq_takefirst(&sc->data.head);
350 /* block found to process, dequeue */
351 /*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/
352 sc->data.flags |= MCDMBXBSY;
360 sc->data.mbx.retry = MCD_RETRYS;
361 sc->data.mbx.bp = bp;
363 mcd_doread(sc, MCD_S_BEGIN,&(sc->data.mbx));
368 mcdioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
370 struct mcd_softc *sc;
373 sc = (struct mcd_softc *)dev->si_drv1;
375 if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
377 MCD_TRACE("ioctl called 0x%lx\n", cmd);
390 return mcd_eject(sc);
398 return mcd_hard_reset(sc);
400 return mcd_lock_door(sc, MCD_LK_UNLOCK);
402 return mcd_lock_door(sc, MCD_LK_LOCK);
404 return mcd_inject(sc);
407 if (!(sc->data.flags & MCDVALID)) {
408 if ( (sc->data.status & (MCDDSKCHNG|MCDDOOROPEN))
409 || !(sc->data.status & MCDDSKIN))
410 for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) {
411 (void) tsleep((caddr_t)sc, PSOCK | PCATCH, "mcdsn2", hz/WAIT_FRAC);
412 if ((r = mcd_getstat(sc, 1)) == -1)
417 if ( (sc->data.status & (MCDDOOROPEN|MCDDSKCHNG))
418 || !(sc->data.status & MCDDSKIN)
422 sc->data.flags |= MCDVALID;
423 sc->data.partflags |= MCDREADRAW;
424 (void) mcd_lock_door(sc, MCD_LK_LOCK);
425 if (!(sc->data.flags & MCDVALID))
431 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize;
433 case DIOCGSECTORSIZE:
434 *(u_int *)addr = sc->data.blksize;
437 case CDIOCPLAYTRACKS:
438 return mcd_playtracks(sc, (struct ioc_play_track *) addr);
439 case CDIOCPLAYBLOCKS:
440 return mcd_playblocks(sc, (struct ioc_play_blocks *) addr);
442 return mcd_playmsf(sc, (struct ioc_play_msf *) addr);
443 case CDIOCREADSUBCHANNEL_SYSSPACE:
444 return mcd_subchan(sc, (struct ioc_read_subchannel *) addr, 1);
445 case CDIOCREADSUBCHANNEL:
446 return mcd_subchan(sc, (struct ioc_read_subchannel *) addr, 0);
447 case CDIOREADTOCHEADER:
448 return mcd_toc_header(sc, (struct ioc_toc_header *) addr);
449 case CDIOREADTOCENTRYS:
450 return mcd_toc_entrys(sc, (struct ioc_read_toc_entry *) addr);
452 return mcd_resume(sc);
454 return mcd_pause(sc);
456 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
468 mcd_size(struct cdev *dev)
470 struct mcd_softc *sc;
473 sc = (struct mcd_softc *)dev->si_drv1;
475 if (mcd_volinfo(sc) == 0) {
476 sc->data.blksize = MCDBLK;
477 size = msf2hsg(sc->data.volinfo.vol_msf, 0);
478 sc->data.disksize = size * (MCDBLK/DEV_BSIZE);
484 /***************************************************************
485 * lower level of driver starts here
486 **************************************************************/
491 0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00,
492 0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00
497 0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07,
503 mcd_configure(struct mcd_softc *sc)
505 MCD_WRITE(sc, MCD_REG_CONFIG, sc->data.config);
509 /* Wait for non-busy - return 0 on timeout */
511 twiddle_thumbs(struct mcd_softc *sc, int count, char *whine)
515 for (i = 0; i < count; i++) {
516 if (!(MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL))
520 device_printf(sc->dev, "timeout %s\n", whine);
524 /* check to see if a Mitsumi CD-ROM is attached to the ISA bus */
527 mcd_probe(struct mcd_softc *sc)
530 unsigned char stbytes[3];
532 sc->data.flags = MCDPROBING;
535 /* get irq/drq configuration word */
536 sc->data.config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/
542 MCD_WRITE(sc, MCD_FLAGS, M_RESET);
545 * delay awhile by getting any pending garbage (old data) and
548 for (i = 1000000; i != 0; i--)
549 (void)MCD_READ(sc, MCD_FLAGS);
552 MCD_WRITE(sc, MCD_DATA, MCD_CMDGETSTAT);
553 if (!twiddle_thumbs(sc, 1000000, "getting status"))
554 return (ENXIO); /* Timeout */
555 /* Get version information */
556 MCD_WRITE(sc, MCD_DATA, MCD_CMDCONTINFO);
557 for (j = 0; j < 3; j++) {
558 if (!twiddle_thumbs(sc, 3000, "getting version info"))
560 stbytes[j] = (MCD_READ(sc, MCD_DATA) & 0xFF);
562 if (stbytes[1] == stbytes[2])
564 if (stbytes[2] >= 4 || stbytes[1] != 'M') {
565 MCD_WRITE(sc, MCD_CTRL, M_PICKLE);
566 sc->data.flags |= MCDNEWMODEL;
568 sc->data.read_command = MCD_CMDSINGLESPEEDREAD;
569 switch (stbytes[1]) {
571 if (stbytes[2] <= 2) {
572 sc->data.type = MCD_TYPE_LU002S;
573 sc->data.name = "Mitsumi LU002S";
574 } else if (stbytes[2] <= 5) {
575 sc->data.type = MCD_TYPE_LU005S;
576 sc->data.name = "Mitsumi LU005S";
578 sc->data.type = MCD_TYPE_LU006S;
579 sc->data.name = "Mitsumi LU006S";
583 sc->data.type = MCD_TYPE_FX001;
584 sc->data.name = "Mitsumi FX001";
587 sc->data.type = MCD_TYPE_FX001D;
588 sc->data.name = "Mitsumi FX001D";
589 sc->data.read_command = MCD_CMDDOUBLESPEEDREAD;
592 sc->data.type = MCD_TYPE_UNKNOWN;
593 sc->data.name = "Mitsumi ???";
598 device_printf(sc->dev, "type %s, version info: %c %x\n",
599 sc->data.name, stbytes[1], stbytes[2]);
606 mcd_waitrdy(struct mcd_softc *sc, int dly)
610 /* wait until flag port senses status ready */
611 for (i=0; i<dly; i+=MIN_DELAY) {
612 if (!(MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL))
620 mcd_getreply(struct mcd_softc *sc, int dly)
623 /* wait data to become ready */
624 if (mcd_waitrdy(sc, dly)<0) {
625 device_printf(sc->dev, "timeout getreply\n");
630 return (MCD_READ(sc, MCD_REG_STATUS) & 0xFF);
634 mcd_getstat(struct mcd_softc *sc, int sflg)
640 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDGETSTAT);
641 i = mcd_getreply(sc, DELAY_GETREPLY);
642 if (i<0 || (i & MCD_ST_CMDCHECK)) {
643 sc->data.curr_mode = MCD_MD_UNKNOWN;
649 if (mcd_setflags(sc) < 0)
651 return (sc->data.status);
655 mcd_setflags(struct mcd_softc *sc)
659 if ( (sc->data.status & (MCDDSKCHNG|MCDDOOROPEN))
660 || !(sc->data.status & MCDDSKIN)) {
661 MCD_TRACE("setflags: sensed DSKCHNG or DOOROPEN or !DSKIN\n");
666 if (sc->data.status & MCDAUDIOBSY)
667 sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
668 else if (sc->data.audio_status == CD_AS_PLAY_IN_PROGRESS)
669 sc->data.audio_status = CD_AS_PLAY_COMPLETED;
674 mcd_get(struct mcd_softc *sc, char *buf, int nmax)
678 for (i=0; i<nmax; i++) {
680 if ((k = mcd_getreply(sc, DELAY_GETREPLY)) < 0) {
681 device_printf(sc->dev, "timeout mcd_get\n");
690 mcd_send(struct mcd_softc *sc, int cmd,int nretrys)
694 /*MCD_TRACE("mcd_send: command = 0x%02x\n",cmd,0,0,0);*/
695 for (i=0; i<nretrys; i++) {
696 MCD_WRITE(sc, MCD_REG_COMMAND, cmd);
697 if ((k=mcd_getstat(sc, 0)) != -1)
701 device_printf(sc->dev, "media changed\n");
705 device_printf(sc->dev, "mcd_send retry cnt exceeded\n");
708 /*MCD_TRACE("mcd_send: done\n",0,0,0,0);*/
713 hsg2msf(int hsg, bcd_t *msf)
716 F_msf(msf) = bin2bcd(hsg % 75);
718 S_msf(msf) = bin2bcd(hsg % 60);
720 M_msf(msf) = bin2bcd(hsg);
724 msf2hsg(bcd_t *msf, int relative)
726 return (bcd2bin(M_msf(msf)) * 60 + bcd2bin(S_msf(msf))) * 75 +
727 bcd2bin(F_msf(msf)) - (!relative) * 150;
731 mcd_volinfo(struct mcd_softc *sc)
734 /* Just return if we already have it */
735 if (sc->data.flags & MCDVOLINFO) return (0);
737 /*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/
739 /* send volume info command */
740 if (mcd_send(sc, MCD_CMDGETVOLINFO,MCD_RETRYS) < 0)
744 if (mcd_get(sc, (char*) &sc->data.volinfo,sizeof(struct mcd_volinfo)) < 0) {
745 device_printf(sc->dev, "mcd_volinfo: error read data\n");
749 if (sc->data.volinfo.trk_low > 0 &&
750 sc->data.volinfo.trk_high >= sc->data.volinfo.trk_low
752 sc->data.flags |= MCDVOLINFO; /* volinfo is OK */
759 /* state machine to process read requests
760 * initialize with MCD_S_BEGIN: calculate sizes, and read status
761 * MCD_S_WAITSTAT: wait for status reply, set mode
762 * MCD_S_WAITMODE: waits for status reply from set mode, set read command
763 * MCD_S_WAITREAD: wait for read ready, read data
766 mcd_timeout(void *arg)
768 struct mcd_softc *sc;
770 sc = (struct mcd_softc *)arg;
772 mcd_doread(sc, sc->ch_state, sc->ch_mbxsave);
776 mcd_doread(struct mcd_softc *sc, int state, struct mcd_mbx *mbxin)
781 struct mcd_read2 rbuf;
785 mbx = (state!=MCD_S_BEGIN) ? sc->ch_mbxsave : mbxin;
791 mbx = sc->ch_mbxsave = mbxin;
796 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDGETSTAT);
797 mbx->count = RDELAY_WAITSTAT;
798 sc->ch_state = MCD_S_WAITSTAT;
799 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
802 sc->ch_state = MCD_S_WAITSTAT;
803 untimeout(mcd_timeout,(caddr_t)sc, sc->ch);
804 if (mbx->count-- >= 0) {
805 if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) {
806 sc->ch_state = MCD_S_WAITSTAT;
807 timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
810 sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
811 if (sc->data.status & MCD_ST_CMDCHECK)
813 if (mcd_setflags(sc) < 0)
815 MCD_TRACE("got WAITSTAT delay=%d\n",
816 RDELAY_WAITSTAT-mbx->count);
817 /* reject, if audio active */
818 if (sc->data.status & MCDAUDIOBSY) {
819 device_printf(sc->dev, "audio is active\n");
824 /* to check for raw/cooked mode */
825 if (sc->data.flags & MCDREADRAW) {
830 mbx->sz = sc->data.blksize;
833 if (rm == sc->data.curr_mode)
836 mbx->count = RDELAY_WAITMODE;
838 sc->data.curr_mode = MCD_MD_UNKNOWN;
840 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSETMODE);
841 MCD_WRITE(sc, MCD_REG_COMMAND, rm);
843 sc->ch_state = MCD_S_WAITMODE;
844 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
847 device_printf(sc->dev, "timeout getstatus\n");
852 sc->ch_state = MCD_S_WAITMODE;
853 untimeout(mcd_timeout, (caddr_t)sc, sc->ch);
854 if (mbx->count-- < 0) {
855 device_printf(sc->dev, "timeout set mode\n");
858 if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) {
859 sc->ch_state = MCD_S_WAITMODE;
860 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100);
863 sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
864 if (sc->data.status & MCD_ST_CMDCHECK) {
865 sc->data.curr_mode = MCD_MD_UNKNOWN;
868 if (mcd_setflags(sc) < 0)
870 sc->data.curr_mode = mbx->mode;
871 MCD_TRACE("got WAITMODE delay=%d\n",
872 RDELAY_WAITMODE-mbx->count);
874 /* for first block */
875 mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz;
879 blknum = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz;
881 MCD_TRACE("mcd_doread: read blknum=%d for bp=%p\n",
884 /* build parameter block */
885 hsg2msf(blknum,rbuf.start_msf);
887 /* send the read command */
889 MCD_WRITE(sc, MCD_REG_COMMAND, sc->data.read_command);
890 MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[0]);
891 MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[1]);
892 MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[2]);
893 MCD_WRITE(sc, MCD_REG_COMMAND, 0);
894 MCD_WRITE(sc, MCD_REG_COMMAND, 0);
895 MCD_WRITE(sc, MCD_REG_COMMAND, 1);
898 /* Spin briefly (<= 2ms) to avoid missing next block */
899 for (i = 0; i < 20; i++) {
900 k = MCD_READ(sc, MCD_FLAGS);
901 if (!(k & MFL_DATA_NOT_AVAIL))
906 mbx->count = RDELAY_WAITREAD;
907 sc->ch_state = MCD_S_WAITREAD;
908 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
911 sc->ch_state = MCD_S_WAITREAD;
912 untimeout(mcd_timeout, (caddr_t)sc, sc->ch);
913 if (mbx->count-- > 0) {
914 k = MCD_READ(sc, MCD_FLAGS);
915 if (!(k & MFL_DATA_NOT_AVAIL)) { /* XXX */
916 MCD_TRACE("got data delay=%d\n",
917 RDELAY_WAITREAD-mbx->count);
920 addr = bp->bio_data + mbx->skip;
922 MCD_WRITE(sc, MCD_REG_CTL2,0x04); /* XXX */
923 for (i=0; i<mbx->sz; i++)
924 *addr++ = MCD_READ(sc, MCD_REG_RDATA);
925 MCD_WRITE(sc, MCD_REG_CTL2,0x0c); /* XXX */
927 k = MCD_READ(sc, MCD_FLAGS);
928 /* If we still have some junk, read it too */
929 if (!(k & MFL_DATA_NOT_AVAIL)) {
930 MCD_WRITE(sc, MCD_REG_CTL2, 0x04); /* XXX */
931 (void)MCD_READ(sc, MCD_REG_RDATA);
932 (void)MCD_READ(sc, MCD_REG_RDATA);
933 MCD_WRITE(sc, MCD_REG_CTL2, 0x0c); /* XXX */
936 if (--mbx->nblk > 0) {
937 mbx->skip += mbx->sz;
945 sc->data.flags &= ~(MCDMBXBSY|MCDREADRAW);
949 if (!(k & MFL_STATUS_NOT_AVAIL)) {
950 sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
951 if (sc->data.status & MCD_ST_CMDCHECK)
953 if (mcd_setflags(sc) < 0)
956 sc->ch_state = MCD_S_WAITREAD;
957 sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
960 device_printf(sc->dev, "timeout read data\n");
966 if (mbx->retry-- > 0) {
967 device_printf(sc->dev, "retrying\n");
968 state = MCD_S_BEGIN1;
972 /* invalidate the buffer */
973 bp->bio_flags |= BIO_ERROR;
974 bp->bio_resid = bp->bio_bcount;
977 sc->data.flags &= ~(MCDMBXBSY|MCDREADRAW);
982 device_printf(sc->dev, "media changed\n");
986 device_printf(sc->dev, "unit timeout, resetting\n");
987 MCD_WRITE(sc, MCD_REG_RESET, MCD_CMDRESET);
989 (void)mcd_getstat(sc, 1);
990 (void)mcd_getstat(sc, 1);
991 /*sc->data.status &= ~MCDDSKCHNG; */
992 sc->data.debug = 1; /* preventive set debug mode */
999 mcd_lock_door(struct mcd_softc *sc, int lock)
1002 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDLOCKDRV);
1003 MCD_WRITE(sc, MCD_REG_COMMAND, lock);
1004 if (mcd_getstat(sc, 0) == -1)
1010 mcd_close_tray(struct mcd_softc *sc)
1014 if (mcd_getstat(sc, 1) == -1)
1016 if (sc->data.status & MCDDOOROPEN) {
1017 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDCLOSETRAY);
1018 for (retry = 0; retry < CLOSE_TRAY_SECS * WAIT_FRAC; retry++) {
1019 if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)
1020 (void) tsleep((caddr_t)sc, PSOCK | PCATCH, "mcdcls", hz/WAIT_FRAC);
1022 if ((r = mcd_getstat(sc, 0)) == -1)
1033 mcd_eject(struct mcd_softc *sc)
1037 if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
1039 if (sc->data.status & MCDDOOROPEN)
1041 if ((r = mcd_stop(sc)) == EIO)
1043 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDEJECTDISK);
1044 if (mcd_getstat(sc, 0) == -1)
1050 mcd_inject(struct mcd_softc *sc)
1053 if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
1055 if (sc->data.status & MCDDOOROPEN)
1056 return mcd_close_tray(sc);
1061 mcd_hard_reset(struct mcd_softc *sc)
1064 MCD_WRITE(sc, MCD_REG_RESET, MCD_CMDRESET);
1065 sc->data.curr_mode = MCD_MD_UNKNOWN;
1066 sc->data.audio_status = CD_AS_AUDIO_INVALID;
1071 mcd_soft_reset(struct mcd_softc *sc)
1074 sc->data.flags &= (MCDINIT|MCDPROBING|MCDNEWMODEL);
1075 sc->data.curr_mode = MCD_MD_UNKNOWN;
1076 sc->data.partflags = 0;
1077 sc->data.audio_status = CD_AS_AUDIO_INVALID;
1081 mcd_setmode(struct mcd_softc *sc, int mode)
1085 if (sc->data.curr_mode == mode)
1088 device_printf(sc->dev, "setting mode to %d\n", mode);
1089 for(retry=0; retry<MCD_RETRYS; retry++)
1091 sc->data.curr_mode = MCD_MD_UNKNOWN;
1092 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSETMODE);
1093 MCD_WRITE(sc, MCD_REG_COMMAND, mode);
1094 if ((st = mcd_getstat(sc, 0)) >= 0) {
1095 sc->data.curr_mode = mode;
1099 device_printf(sc->dev, "media changed\n");
1108 mcd_toc_header(struct mcd_softc *sc, struct ioc_toc_header *th)
1112 if ((r = mcd_volinfo(sc)) != 0)
1115 th->starting_track = bcd2bin(sc->data.volinfo.trk_low);
1116 th->ending_track = bcd2bin(sc->data.volinfo.trk_high);
1117 th->len = 2 * sizeof(u_char) /* start & end tracks */ +
1118 (th->ending_track + 1 - th->starting_track + 1) *
1119 sizeof(struct cd_toc_entry);
1125 mcd_read_toc(struct mcd_softc *sc)
1127 struct ioc_toc_header th;
1128 struct mcd_qchninfo q;
1129 int rc, trk, idx, retry;
1131 /* Only read TOC if needed */
1132 if (sc->data.flags & MCDTOC)
1136 device_printf(sc->dev, "reading toc header\n");
1138 if ((rc = mcd_toc_header(sc, &th)) != 0)
1141 if (mcd_send(sc, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0)
1144 if (mcd_setmode(sc, MCD_MD_TOC) != 0)
1148 device_printf(sc->dev, "get_toc reading qchannel info\n");
1150 for(trk=th.starting_track; trk<=th.ending_track; trk++)
1151 sc->data.toc[trk].idx_no = 0;
1152 trk = th.ending_track - th.starting_track + 1;
1153 for(retry=0; retry<600 && trk>0; retry++)
1155 if (mcd_getqchan(sc, &q) < 0) break;
1156 idx = bcd2bin(q.idx_no);
1157 if (idx>=th.starting_track && idx<=th.ending_track && q.trk_no==0) {
1158 if (sc->data.toc[idx].idx_no == 0) {
1159 sc->data.toc[idx] = q;
1165 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1171 /* add a fake last+1 */
1172 idx = th.ending_track + 1;
1173 sc->data.toc[idx].control = sc->data.toc[idx-1].control;
1174 sc->data.toc[idx].addr_type = sc->data.toc[idx-1].addr_type;
1175 sc->data.toc[idx].trk_no = 0;
1176 sc->data.toc[idx].idx_no = MCD_LASTPLUS1;
1177 sc->data.toc[idx].hd_pos_msf[0] = sc->data.volinfo.vol_msf[0];
1178 sc->data.toc[idx].hd_pos_msf[1] = sc->data.volinfo.vol_msf[1];
1179 sc->data.toc[idx].hd_pos_msf[2] = sc->data.volinfo.vol_msf[2];
1183 for (i = th.starting_track; i <= idx; i++)
1184 device_printf(sc->dev, "trk %d idx %d pos %d %d %d\n",
1186 sc->data.toc[i].idx_no > 0x99 ? sc->data.toc[i].idx_no :
1187 bcd2bin(sc->data.toc[i].idx_no),
1188 bcd2bin(sc->data.toc[i].hd_pos_msf[0]),
1189 bcd2bin(sc->data.toc[i].hd_pos_msf[1]),
1190 bcd2bin(sc->data.toc[i].hd_pos_msf[2]));
1193 sc->data.flags |= MCDTOC;
1200 mcd_toc_entry(struct mcd_softc *sc, struct ioc_read_toc_single_entry *te)
1202 struct ioc_toc_header th;
1205 if (te->address_format != CD_MSF_FORMAT
1206 && te->address_format != CD_LBA_FORMAT)
1209 /* Copy the toc header */
1210 if ((rc = mcd_toc_header(sc, &th)) != 0)
1213 /* verify starting track */
1216 trk = th.starting_track;
1217 else if (trk == MCD_LASTPLUS1)
1218 trk = th.ending_track + 1;
1219 else if (trk < th.starting_track || trk > th.ending_track + 1)
1222 /* Make sure we have a valid toc */
1223 if ((rc=mcd_read_toc(sc)) != 0)
1226 /* Copy the TOC data. */
1227 if (sc->data.toc[trk].idx_no == 0)
1230 te->entry.control = sc->data.toc[trk].control;
1231 te->entry.addr_type = sc->data.toc[trk].addr_type;
1233 sc->data.toc[trk].idx_no > 0x99 ? sc->data.toc[trk].idx_no :
1234 bcd2bin(sc->data.toc[trk].idx_no);
1235 switch (te->address_format) {
1237 te->entry.addr.msf.unused = 0;
1238 te->entry.addr.msf.minute = bcd2bin(sc->data.toc[trk].hd_pos_msf[0]);
1239 te->entry.addr.msf.second = bcd2bin(sc->data.toc[trk].hd_pos_msf[1]);
1240 te->entry.addr.msf.frame = bcd2bin(sc->data.toc[trk].hd_pos_msf[2]);
1243 te->entry.addr.lba = htonl(msf2hsg(sc->data.toc[trk].hd_pos_msf, 0));
1251 mcd_toc_entrys(struct mcd_softc *sc, struct ioc_read_toc_entry *te)
1253 struct cd_toc_entry entries[MCD_MAXTOCS];
1254 struct ioc_toc_header th;
1255 int rc, n, trk, len;
1257 if ( te->data_len < sizeof(entries[0])
1258 || (te->data_len % sizeof(entries[0])) != 0
1259 || (te->address_format != CD_MSF_FORMAT
1260 && te->address_format != CD_LBA_FORMAT)
1264 /* Copy the toc header */
1265 if ((rc = mcd_toc_header(sc, &th)) != 0)
1268 /* verify starting track */
1269 trk = te->starting_track;
1271 trk = th.starting_track;
1272 else if (trk == MCD_LASTPLUS1)
1273 trk = th.ending_track + 1;
1274 else if (trk < th.starting_track || trk > th.ending_track + 1)
1277 len = ((th.ending_track + 1 - trk) + 1) *
1279 if (te->data_len < len)
1281 if (len > sizeof(entries))
1284 /* Make sure we have a valid toc */
1285 if ((rc=mcd_read_toc(sc)) != 0)
1288 /* Copy the TOC data. */
1289 for (n = 0; len > 0 && trk <= th.ending_track + 1; trk++) {
1290 if (sc->data.toc[trk].idx_no == 0)
1292 entries[n].control = sc->data.toc[trk].control;
1293 entries[n].addr_type = sc->data.toc[trk].addr_type;
1295 sc->data.toc[trk].idx_no > 0x99 ? sc->data.toc[trk].idx_no :
1296 bcd2bin(sc->data.toc[trk].idx_no);
1297 switch (te->address_format) {
1299 entries[n].addr.msf.unused = 0;
1300 entries[n].addr.msf.minute = bcd2bin(sc->data.toc[trk].hd_pos_msf[0]);
1301 entries[n].addr.msf.second = bcd2bin(sc->data.toc[trk].hd_pos_msf[1]);
1302 entries[n].addr.msf.frame = bcd2bin(sc->data.toc[trk].hd_pos_msf[2]);
1305 entries[n].addr.lba = htonl(msf2hsg(sc->data.toc[trk].hd_pos_msf, 0));
1308 len -= sizeof(struct cd_toc_entry);
1312 /* copy the data back */
1313 return copyout(entries, te->data, n * sizeof(struct cd_toc_entry));
1317 mcd_stop(struct mcd_softc *sc)
1320 /* Verify current status */
1321 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS &&
1322 sc->data.audio_status != CD_AS_PLAY_PAUSED &&
1323 sc->data.audio_status != CD_AS_PLAY_COMPLETED) {
1325 device_printf(sc->dev,
1326 "stop attempted when not playing, audio status %d\n",
1327 sc->data.audio_status);
1330 if (sc->data.audio_status == CD_AS_PLAY_IN_PROGRESS)
1331 if (mcd_send(sc, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0)
1333 sc->data.audio_status = CD_AS_PLAY_COMPLETED;
1338 mcd_getqchan(struct mcd_softc *sc, struct mcd_qchninfo *q)
1341 if (mcd_send(sc, MCD_CMDGETQCHN, MCD_RETRYS) < 0)
1343 if (mcd_get(sc, (char *) q, sizeof(struct mcd_qchninfo)) < 0)
1345 if (sc->data.debug) {
1346 device_printf(sc->dev,
1347 "getqchan control=0x%x addr_type=0x%x trk=%d ind=%d ttm=%d:%d.%d dtm=%d:%d.%d\n",
1348 q->control, q->addr_type,
1351 bcd2bin(q->trk_size_msf[0]),
1352 bcd2bin(q->trk_size_msf[1]),
1353 bcd2bin(q->trk_size_msf[2]),
1354 bcd2bin(q->hd_pos_msf[0]),
1355 bcd2bin(q->hd_pos_msf[1]),
1356 bcd2bin(q->hd_pos_msf[2]));
1362 mcd_subchan(struct mcd_softc *sc, struct ioc_read_subchannel *sch, int nocopyout)
1364 struct mcd_qchninfo q;
1365 struct cd_sub_channel_info data;
1369 device_printf(sc->dev, "subchan af=%d, df=%d\n",
1370 sch->address_format,
1373 if (sch->address_format != CD_MSF_FORMAT &&
1374 sch->address_format != CD_LBA_FORMAT)
1377 if (sch->data_format != CD_CURRENT_POSITION &&
1378 sch->data_format != CD_MEDIA_CATALOG)
1381 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1384 if (mcd_getqchan(sc, &q) < 0)
1387 data.header.audio_status = sc->data.audio_status;
1388 data.what.position.data_format = sch->data_format;
1390 switch (sch->data_format) {
1391 case CD_MEDIA_CATALOG:
1392 data.what.media_catalog.mc_valid = 1;
1393 data.what.media_catalog.mc_number[0] = '\0';
1396 case CD_CURRENT_POSITION:
1397 data.what.position.control = q.control;
1398 data.what.position.addr_type = q.addr_type;
1399 data.what.position.track_number = bcd2bin(q.trk_no);
1400 data.what.position.index_number = bcd2bin(q.idx_no);
1401 switch (sch->address_format) {
1403 data.what.position.reladdr.msf.unused = 0;
1404 data.what.position.reladdr.msf.minute = bcd2bin(q.trk_size_msf[0]);
1405 data.what.position.reladdr.msf.second = bcd2bin(q.trk_size_msf[1]);
1406 data.what.position.reladdr.msf.frame = bcd2bin(q.trk_size_msf[2]);
1407 data.what.position.absaddr.msf.unused = 0;
1408 data.what.position.absaddr.msf.minute = bcd2bin(q.hd_pos_msf[0]);
1409 data.what.position.absaddr.msf.second = bcd2bin(q.hd_pos_msf[1]);
1410 data.what.position.absaddr.msf.frame = bcd2bin(q.hd_pos_msf[2]);
1413 lba = msf2hsg(q.trk_size_msf, 1);
1415 * Pre-gap has index number of 0, and decreasing MSF
1416 * address. Must be converted to negative LBA, per
1419 if (data.what.position.index_number == 0)
1421 data.what.position.reladdr.lba = htonl(lba);
1422 data.what.position.absaddr.lba = htonl(msf2hsg(q.hd_pos_msf, 0));
1429 return copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len));
1430 bcopy(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len));
1435 mcd_playmsf(struct mcd_softc *sc, struct ioc_play_msf *p)
1437 struct mcd_read2 pb;
1440 device_printf(sc->dev, "playmsf: from %d:%d.%d to %d:%d.%d\n",
1441 p->start_m, p->start_s, p->start_f,
1442 p->end_m, p->end_s, p->end_f);
1444 if ((p->start_m * 60 * 75 + p->start_s * 75 + p->start_f) >=
1445 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) ||
1446 (p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) >
1447 M_msf(sc->data.volinfo.vol_msf) * 60 * 75 +
1448 S_msf(sc->data.volinfo.vol_msf) * 75 +
1449 F_msf(sc->data.volinfo.vol_msf))
1452 pb.start_msf[0] = bin2bcd(p->start_m);
1453 pb.start_msf[1] = bin2bcd(p->start_s);
1454 pb.start_msf[2] = bin2bcd(p->start_f);
1455 pb.end_msf[0] = bin2bcd(p->end_m);
1456 pb.end_msf[1] = bin2bcd(p->end_s);
1457 pb.end_msf[2] = bin2bcd(p->end_f);
1459 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1462 return mcd_play(sc, &pb);
1466 mcd_playtracks(struct mcd_softc *sc, struct ioc_play_track *pt)
1468 struct mcd_read2 pb;
1469 int a = pt->start_track;
1470 int z = pt->end_track;
1473 if ((rc = mcd_read_toc(sc)) != 0)
1477 device_printf(sc->dev, "playtracks from %d:%d to %d:%d\n",
1478 a, pt->start_index, z, pt->end_index);
1480 if ( a < bcd2bin(sc->data.volinfo.trk_low)
1481 || a > bcd2bin(sc->data.volinfo.trk_high)
1483 || z < bcd2bin(sc->data.volinfo.trk_low)
1484 || z > bcd2bin(sc->data.volinfo.trk_high))
1487 for (i = 0; i < 3; i++) {
1488 pb.start_msf[i] = sc->data.toc[a].hd_pos_msf[i];
1489 pb.end_msf[i] = sc->data.toc[z+1].hd_pos_msf[i];
1492 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1495 return mcd_play(sc, &pb);
1499 mcd_playblocks(struct mcd_softc *sc, struct ioc_play_blocks *p)
1501 struct mcd_read2 pb;
1504 device_printf(sc->dev, "playblocks: blkno %d length %d\n",
1507 if (p->blk > sc->data.disksize || p->len > sc->data.disksize ||
1508 p->blk < 0 || p->len < 0 ||
1509 (p->blk + p->len) > sc->data.disksize)
1512 hsg2msf(p->blk, pb.start_msf);
1513 hsg2msf(p->blk + p->len, pb.end_msf);
1515 if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
1518 return mcd_play(sc, &pb);
1522 mcd_play(struct mcd_softc *sc, struct mcd_read2 *pb)
1524 int retry, st = -1, status;
1526 sc->data.lastpb = *pb;
1527 for(retry=0; retry<MCD_RETRYS; retry++) {
1530 MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSINGLESPEEDREAD);
1531 MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[0]);
1532 MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[1]);
1533 MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[2]);
1534 MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[0]);
1535 MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[1]);
1536 MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[2]);
1539 status=mcd_getstat(sc, 0);
1542 else if (status != -2)
1548 device_printf(sc->dev, "media changed\n");
1552 device_printf(sc->dev,
1553 "mcd_play retry=%d, status=0x%02x\n", retry, status);
1556 sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
1561 mcd_pause(struct mcd_softc *sc)
1563 struct mcd_qchninfo q;
1566 /* Verify current status */
1567 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS &&
1568 sc->data.audio_status != CD_AS_PLAY_PAUSED) {
1570 device_printf(sc->dev,
1571 "pause attempted when not playing, audio status %d\n",
1572 sc->data.audio_status);
1576 /* Get the current position */
1577 if (mcd_getqchan(sc, &q) < 0)
1580 /* Copy it into lastpb */
1581 sc->data.lastpb.start_msf[0] = q.hd_pos_msf[0];
1582 sc->data.lastpb.start_msf[1] = q.hd_pos_msf[1];
1583 sc->data.lastpb.start_msf[2] = q.hd_pos_msf[2];
1586 if ((rc=mcd_stop(sc)) != 0)
1589 /* Set the proper status and exit */
1590 sc->data.audio_status = CD_AS_PLAY_PAUSED;
1595 mcd_resume(struct mcd_softc *sc)
1598 if (sc->data.audio_status != CD_AS_PLAY_PAUSED)
1600 return mcd_play(sc, &sc->data.lastpb);