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freebsd-nq/sys/dev/mcd/mcd.c

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/*-
* Copyright 1993 by Holger Veit (data part)
* Copyright 1993 by Brian Moore (audio part)
* Changes Copyright 1993 by Gary Clark II
* Changes Copyright (C) 1994-1995 by Andrey A. Chernov, Moscow, Russia
*
* Rewrote probe routine to work on newer Mitsumi drives.
* Additional changes (C) 1994 by Jordan K. Hubbard
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This software was developed by Holger Veit and Brian Moore
* for use with "386BSD" and similar operating systems.
* "Similar operating systems" includes mainly non-profit oriented
* systems for research and education, including but not restricted to
* "NetBSD", "FreeBSD", "Mach" (by CMU).
* 4. Neither the name of the developer(s) nor the name "386BSD"
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER(S) BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
static const char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore";
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <sys/bio.h>
#include <sys/cdio.h>
#include <sys/disk.h>
#include <sys/bus.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#include <dev/mcd/mcdreg.h>
#include <dev/mcd/mcdvar.h>
#define MCD_TRACE(format, args...) \
{ \
if (sc->debug) { \
device_printf(sc->dev, "status=0x%02x: ", \
sc->data.status); \
printf(format, ## args); \
} \
}
#define RAW_PART 2
/* flags */
#define MCDVALID 0x0001 /* parameters loaded */
#define MCDINIT 0x0002 /* device is init'd */
#define MCDNEWMODEL 0x0004 /* device is new model */
#define MCDLABEL 0x0008 /* label is read */
#define MCDPROBING 0x0010 /* probing */
#define MCDREADRAW 0x0020 /* read raw mode (2352 bytes) */
#define MCDVOLINFO 0x0040 /* already read volinfo */
#define MCDTOC 0x0080 /* already read toc */
#define MCDMBXBSY 0x0100 /* local mbx is busy */
/* status */
#define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */
#define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */
#define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */
#define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */
/* These are apparently the different states a mitsumi can get up to */
#define MCDCDABSENT 0x0030
#define MCDCDPRESENT 0x0020
#define MCDSCLOSED 0x0080
#define MCDSOPEN 0x00a0
#define MCD_MD_UNKNOWN (-1)
#define MCD_TYPE_UNKNOWN 0
#define MCD_TYPE_LU002S 1
#define MCD_TYPE_LU005S 2
#define MCD_TYPE_LU006S 3
#define MCD_TYPE_FX001 4
#define MCD_TYPE_FX001D 5
/* reader state machine */
#define MCD_S_BEGIN 0
#define MCD_S_BEGIN1 1
#define MCD_S_WAITSTAT 2
#define MCD_S_WAITMODE 3
#define MCD_S_WAITREAD 4
/* prototypes */
static void mcd_start(struct mcd_softc *);
#ifdef NOTYET
static void mcd_configure(struct mcd_softc *sc);
#endif
static int mcd_get(struct mcd_softc *, char *buf, int nmax);
static int mcd_setflags(struct mcd_softc *);
static int mcd_getstat(struct mcd_softc *,int sflg);
static int mcd_send(struct mcd_softc *, int cmd,int nretrys);
static void hsg2msf(int hsg, bcd_t *msf);
static int msf2hsg(bcd_t *msf, int relative);
static int mcd_volinfo(struct mcd_softc *);
static int mcd_waitrdy(struct mcd_softc *,int dly);
static timeout_t mcd_timeout;
static void mcd_doread(struct mcd_softc *, int state, struct mcd_mbx *mbxin);
static void mcd_soft_reset(struct mcd_softc *);
static int mcd_hard_reset(struct mcd_softc *);
static int mcd_setmode(struct mcd_softc *, int mode);
static int mcd_getqchan(struct mcd_softc *, struct mcd_qchninfo *q);
static int mcd_subchan(struct mcd_softc *, struct ioc_read_subchannel *sc);
static int mcd_toc_header(struct mcd_softc *, struct ioc_toc_header *th);
static int mcd_read_toc(struct mcd_softc *);
static int mcd_toc_entrys(struct mcd_softc *, struct ioc_read_toc_entry *te);
#if 0
static int mcd_toc_entry(struct mcd_softc *, struct ioc_read_toc_single_entry *te);
#endif
static int mcd_stop(struct mcd_softc *);
static int mcd_eject(struct mcd_softc *);
static int mcd_inject(struct mcd_softc *);
static int mcd_playtracks(struct mcd_softc *, struct ioc_play_track *pt);
static int mcd_play(struct mcd_softc *, struct mcd_read2 *pb);
static int mcd_playmsf(struct mcd_softc *, struct ioc_play_msf *pt);
static int mcd_playblocks(struct mcd_softc *, struct ioc_play_blocks *);
static int mcd_pause(struct mcd_softc *);
static int mcd_resume(struct mcd_softc *);
static int mcd_lock_door(struct mcd_softc *, int lock);
static int mcd_close_tray(struct mcd_softc *);
static int mcd_size(struct cdev *dev);
static d_open_t mcdopen;
static d_close_t mcdclose;
static d_ioctl_t mcdioctl;
static d_strategy_t mcdstrategy;
static struct cdevsw mcd_cdevsw = {
.d_version = D_VERSION,
.d_open = mcdopen,
.d_close = mcdclose,
.d_read = physread,
.d_ioctl = mcdioctl,
.d_strategy = mcdstrategy,
.d_name = "mcd",
.d_flags = D_DISK | D_NEEDGIANT,
};
#define MCD_RETRYS 5
#define MCD_RDRETRYS 8
#define CLOSE_TRAY_SECS 8
#define DISK_SENSE_SECS 3
#define WAIT_FRAC 4
/* several delays */
#define RDELAY_WAITSTAT 300
#define RDELAY_WAITMODE 300
#define RDELAY_WAITREAD 800
#define MIN_DELAY 15
#define DELAY_GETREPLY 5000000
int
mcd_attach(struct mcd_softc *sc)
{
int unit;
unit = device_get_unit(sc->dev);
sc->data.flags |= MCDINIT;
mcd_soft_reset(sc);
bioq_init(&sc->data.head);
#ifdef NOTYET
/* wire controller for interrupts and dma */
mcd_configure(sc);
#endif
/* name filled in probe */
sc->mcd_dev_t = make_dev(&mcd_cdevsw, 8 * unit,
UID_ROOT, GID_OPERATOR, 0640, "mcd%d", unit);
sc->mcd_dev_t->si_drv1 = (void *)sc;
return (0);
}
static int
mcdopen(struct cdev *dev, int flags, int fmt, struct thread *td)
{
struct mcd_softc *sc;
int r,retry;
sc = (struct mcd_softc *)dev->si_drv1;
/* not initialized*/
if (!(sc->data.flags & MCDINIT))
return (ENXIO);
/* invalidated in the meantime? mark all open part's invalid */
if (!(sc->data.flags & MCDVALID) && sc->data.openflags)
return (ENXIO);
if (mcd_getstat(sc, 1) == -1)
return (EIO);
if ( (sc->data.status & (MCDDSKCHNG|MCDDOOROPEN))
|| !(sc->data.status & MCDDSKIN))
for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) {
(void) tsleep((caddr_t)sc, PSOCK | PCATCH, "mcdsn1", hz/WAIT_FRAC);
if ((r = mcd_getstat(sc, 1)) == -1)
return (EIO);
if (r != -2)
break;
}
if (sc->data.status & MCDDOOROPEN) {
device_printf(sc->dev, "door is open\n");
return (ENXIO);
}
if (!(sc->data.status & MCDDSKIN)) {
device_printf(sc->dev, "no CD inside\n");
return (ENXIO);
}
if (sc->data.status & MCDDSKCHNG) {
device_printf(sc->dev, "CD not sensed\n");
return (ENXIO);
}
if (mcd_size(dev) < 0) {
device_printf(sc->dev, "failed to get disk size\n");
return (ENXIO);
}
sc->data.openflags = 1;
sc->data.partflags |= MCDREADRAW;
sc->data.flags |= MCDVALID;
(void) mcd_lock_door(sc, MCD_LK_LOCK);
if (!(sc->data.flags & MCDVALID))
return (ENXIO);
return mcd_read_toc(sc);
}
static int
mcdclose(struct cdev *dev, int flags, int fmt, struct thread *td)
{
struct mcd_softc *sc;
sc = (struct mcd_softc *)dev->si_drv1;
if (!(sc->data.flags & MCDINIT) || !sc->data.openflags)
return (ENXIO);
(void) mcd_lock_door(sc, MCD_LK_UNLOCK);
sc->data.openflags = 0;
sc->data.partflags &= ~MCDREADRAW;
return (0);
}
static void
mcdstrategy(struct bio *bp)
{
struct mcd_softc *sc;
int s;
sc = (struct mcd_softc *)bp->bio_dev->si_drv1;
/* if device invalidated (e.g. media change, door open), error */
if (!(sc->data.flags & MCDVALID)) {
device_printf(sc->dev, "media changed\n");
bp->bio_error = EIO;
goto bad;
}
/* read only */
if (!(bp->bio_cmd == BIO_READ)) {
bp->bio_error = EROFS;
goto bad;
}
/* no data to read */
if (bp->bio_bcount == 0)
goto done;
if (!(sc->data.flags & MCDTOC)) {
bp->bio_error = EIO;
goto bad;
}
bp->bio_resid = 0;
/* queue it */
s = splbio();
bioq_disksort(&sc->data.head, bp);
splx(s);
/* now check whether we can perform processing */
mcd_start(sc);
return;
bad:
bp->bio_flags |= BIO_ERROR;
done:
bp->bio_resid = bp->bio_bcount;
biodone(bp);
return;
}
static void
mcd_start(struct mcd_softc *sc)
{
struct bio *bp;
int s = splbio();
if (sc->data.flags & MCDMBXBSY) {
splx(s);
return;
}
bp = bioq_takefirst(&sc->data.head);
if (bp != 0) {
/* block found to process, dequeue */
/*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/
sc->data.flags |= MCDMBXBSY;
splx(s);
} else {
/* nothing to do */
splx(s);
return;
}
sc->data.mbx.retry = MCD_RETRYS;
sc->data.mbx.bp = bp;
mcd_doread(sc, MCD_S_BEGIN,&(sc->data.mbx));
return;
}
static int
mcdioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
{
struct mcd_softc *sc;
int retry,r;
sc = (struct mcd_softc *)dev->si_drv1;
if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
return (EIO);
MCD_TRACE("ioctl called 0x%lx\n", cmd);
switch (cmd) {
case CDIOCSETPATCH:
case CDIOCGETVOL:
case CDIOCSETVOL:
case CDIOCSETMONO:
case CDIOCSETSTERIO:
case CDIOCSETMUTE:
case CDIOCSETLEFT:
case CDIOCSETRIGHT:
return (EINVAL);
case CDIOCEJECT:
return mcd_eject(sc);
case CDIOCSETDEBUG:
sc->data.debug = 1;
return (0);
case CDIOCCLRDEBUG:
sc->data.debug = 0;
return (0);
case CDIOCRESET:
return mcd_hard_reset(sc);
case CDIOCALLOW:
return mcd_lock_door(sc, MCD_LK_UNLOCK);
case CDIOCPREVENT:
return mcd_lock_door(sc, MCD_LK_LOCK);
case CDIOCCLOSE:
return mcd_inject(sc);
}
if (!(sc->data.flags & MCDVALID)) {
if ( (sc->data.status & (MCDDSKCHNG|MCDDOOROPEN))
|| !(sc->data.status & MCDDSKIN))
for (retry = 0; retry < DISK_SENSE_SECS * WAIT_FRAC; retry++) {
(void) tsleep((caddr_t)sc, PSOCK | PCATCH, "mcdsn2", hz/WAIT_FRAC);
if ((r = mcd_getstat(sc, 1)) == -1)
return (EIO);
if (r != -2)
break;
}
if ( (sc->data.status & (MCDDOOROPEN|MCDDSKCHNG))
|| !(sc->data.status & MCDDSKIN)
|| mcd_size(dev) < 0
)
return (ENXIO);
sc->data.flags |= MCDVALID;
sc->data.partflags |= MCDREADRAW;
(void) mcd_lock_door(sc, MCD_LK_LOCK);
if (!(sc->data.flags & MCDVALID))
return (ENXIO);
}
switch (cmd) {
case DIOCGMEDIASIZE:
*(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize;
return (0);
case DIOCGSECTORSIZE:
*(u_int *)addr = sc->data.blksize;
return (0);
case CDIOCPLAYTRACKS:
return mcd_playtracks(sc, (struct ioc_play_track *) addr);
case CDIOCPLAYBLOCKS:
return mcd_playblocks(sc, (struct ioc_play_blocks *) addr);
case CDIOCPLAYMSF:
return mcd_playmsf(sc, (struct ioc_play_msf *) addr);
case CDIOCREADSUBCHANNEL:
return mcd_subchan(sc, (struct ioc_read_subchannel *) addr);
case CDIOREADTOCHEADER:
return mcd_toc_header(sc, (struct ioc_toc_header *) addr);
case CDIOREADTOCENTRYS:
return mcd_toc_entrys(sc, (struct ioc_read_toc_entry *) addr);
case CDIOCRESUME:
return mcd_resume(sc);
case CDIOCPAUSE:
return mcd_pause(sc);
case CDIOCSTART:
if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
return (EIO);
return (0);
case CDIOCSTOP:
return mcd_stop(sc);
default:
return (ENOTTY);
}
/*NOTREACHED*/
}
static int
mcd_size(struct cdev *dev)
{
struct mcd_softc *sc;
int size;
sc = (struct mcd_softc *)dev->si_drv1;
if (mcd_volinfo(sc) == 0) {
sc->data.blksize = MCDBLK;
size = msf2hsg(sc->data.volinfo.vol_msf, 0);
sc->data.disksize = size * (MCDBLK/DEV_BSIZE);
return (0);
}
return (-1);
}
/***************************************************************
* lower level of driver starts here
**************************************************************/
#ifdef NOTDEF
static char
irqs[] = {
0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00,
0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00
};
static char
drqs[] = {
0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07,
};
#endif
#ifdef NOT_YET
static void
mcd_configure(struct mcd_softc *sc)
{
MCD_WRITE(sc, MCD_REG_CONFIG, sc->data.config);
}
#endif
/* Wait for non-busy - return 0 on timeout */
static int
twiddle_thumbs(struct mcd_softc *sc, int count, char *whine)
{
int i;
for (i = 0; i < count; i++) {
if (!(MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL))
return (1);
}
if (bootverbose)
device_printf(sc->dev, "timeout %s\n", whine);
return (0);
}
/* check to see if a Mitsumi CD-ROM is attached to the ISA bus */
int
mcd_probe(struct mcd_softc *sc)
{
int i, j;
unsigned char stbytes[3];
sc->data.flags = MCDPROBING;
#ifdef NOTDEF
/* get irq/drq configuration word */
sc->data.config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/
#else
sc->data.config = 0;
#endif
/* send a reset */
MCD_WRITE(sc, MCD_FLAGS, M_RESET);
/*
* delay awhile by getting any pending garbage (old data) and
* throwing it away.
*/
for (i = 1000000; i != 0; i--)
(void)MCD_READ(sc, MCD_FLAGS);
/* Get status */
MCD_WRITE(sc, MCD_DATA, MCD_CMDGETSTAT);
if (!twiddle_thumbs(sc, 1000000, "getting status"))
return (ENXIO); /* Timeout */
/* Get version information */
MCD_WRITE(sc, MCD_DATA, MCD_CMDCONTINFO);
for (j = 0; j < 3; j++) {
if (!twiddle_thumbs(sc, 3000, "getting version info"))
return (ENXIO);
stbytes[j] = (MCD_READ(sc, MCD_DATA) & 0xFF);
}
if (stbytes[1] == stbytes[2])
return (ENXIO);
if (stbytes[2] >= 4 || stbytes[1] != 'M') {
MCD_WRITE(sc, MCD_CTRL, M_PICKLE);
sc->data.flags |= MCDNEWMODEL;
}
sc->data.read_command = MCD_CMDSINGLESPEEDREAD;
switch (stbytes[1]) {
case 'M':
if (stbytes[2] <= 2) {
sc->data.type = MCD_TYPE_LU002S;
sc->data.name = "Mitsumi LU002S";
} else if (stbytes[2] <= 5) {
sc->data.type = MCD_TYPE_LU005S;
sc->data.name = "Mitsumi LU005S";
} else {
sc->data.type = MCD_TYPE_LU006S;
sc->data.name = "Mitsumi LU006S";
}
break;
case 'F':
sc->data.type = MCD_TYPE_FX001;
sc->data.name = "Mitsumi FX001";
break;
case 'D':
sc->data.type = MCD_TYPE_FX001D;
sc->data.name = "Mitsumi FX001D";
sc->data.read_command = MCD_CMDDOUBLESPEEDREAD;
break;
default:
sc->data.type = MCD_TYPE_UNKNOWN;
sc->data.name = "Mitsumi ???";
break;
}
if (bootverbose)
device_printf(sc->dev, "type %s, version info: %c %x\n",
sc->data.name, stbytes[1], stbytes[2]);
return (0);
}
static int
mcd_waitrdy(struct mcd_softc *sc, int dly)
{
int i;
/* wait until flag port senses status ready */
for (i=0; i<dly; i+=MIN_DELAY) {
if (!(MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL))
return (0);
DELAY(MIN_DELAY);
}
return (-1);
}
static int
mcd_getreply(struct mcd_softc *sc, int dly)
{
/* wait data to become ready */
if (mcd_waitrdy(sc, dly)<0) {
device_printf(sc->dev, "timeout getreply\n");
return (-1);
}
/* get the data */
return (MCD_READ(sc, MCD_REG_STATUS) & 0xFF);
}
static int
mcd_getstat(struct mcd_softc *sc, int sflg)
{
int i;
/* get the status */
if (sflg)
MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDGETSTAT);
i = mcd_getreply(sc, DELAY_GETREPLY);
if (i<0 || (i & MCD_ST_CMDCHECK)) {
sc->data.curr_mode = MCD_MD_UNKNOWN;
return (-1);
}
sc->data.status = i;
if (mcd_setflags(sc) < 0)
return (-2);
return (sc->data.status);
}
static int
mcd_setflags(struct mcd_softc *sc)
{
/* check flags */
if ( (sc->data.status & (MCDDSKCHNG|MCDDOOROPEN))
|| !(sc->data.status & MCDDSKIN)) {
MCD_TRACE("setflags: sensed DSKCHNG or DOOROPEN or !DSKIN\n");
mcd_soft_reset(sc);
return (-1);
}
if (sc->data.status & MCDAUDIOBSY)
sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
else if (sc->data.audio_status == CD_AS_PLAY_IN_PROGRESS)
sc->data.audio_status = CD_AS_PLAY_COMPLETED;
return (0);
}
static int
mcd_get(struct mcd_softc *sc, char *buf, int nmax)
{
int i,k;
for (i=0; i<nmax; i++) {
/* wait for data */
if ((k = mcd_getreply(sc, DELAY_GETREPLY)) < 0) {
device_printf(sc->dev, "timeout mcd_get\n");
return (-1);
}
buf[i] = k;
}
return (i);
}
static int
mcd_send(struct mcd_softc *sc, int cmd,int nretrys)
{
int i,k=0;
/*MCD_TRACE("mcd_send: command = 0x%02x\n",cmd,0,0,0);*/
for (i=0; i<nretrys; i++) {
MCD_WRITE(sc, MCD_REG_COMMAND, cmd);
if ((k=mcd_getstat(sc, 0)) != -1)
break;
}
if (k == -2) {
device_printf(sc->dev, "media changed\n");
return (-1);
}
if (i == nretrys) {
device_printf(sc->dev, "mcd_send retry cnt exceeded\n");
return (-1);
}
/*MCD_TRACE("mcd_send: done\n",0,0,0,0);*/
return (0);
}
static void
hsg2msf(int hsg, bcd_t *msf)
{
hsg += 150;
F_msf(msf) = bin2bcd(hsg % 75);
hsg /= 75;
S_msf(msf) = bin2bcd(hsg % 60);
hsg /= 60;
M_msf(msf) = bin2bcd(hsg);
}
static int
msf2hsg(bcd_t *msf, int relative)
{
return (bcd2bin(M_msf(msf)) * 60 + bcd2bin(S_msf(msf))) * 75 +
bcd2bin(F_msf(msf)) - (!relative) * 150;
}
static int
mcd_volinfo(struct mcd_softc *sc)
{
/* Just return if we already have it */
if (sc->data.flags & MCDVOLINFO) return (0);
/*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/
/* send volume info command */
if (mcd_send(sc, MCD_CMDGETVOLINFO,MCD_RETRYS) < 0)
return (EIO);
/* get data */
if (mcd_get(sc, (char*) &sc->data.volinfo,sizeof(struct mcd_volinfo)) < 0) {
device_printf(sc->dev, "mcd_volinfo: error read data\n");
return (EIO);
}
if (sc->data.volinfo.trk_low > 0 &&
sc->data.volinfo.trk_high >= sc->data.volinfo.trk_low
) {
sc->data.flags |= MCDVOLINFO; /* volinfo is OK */
return (0);
}
return (EINVAL);
}
/* state machine to process read requests
* initialize with MCD_S_BEGIN: calculate sizes, and read status
* MCD_S_WAITSTAT: wait for status reply, set mode
* MCD_S_WAITMODE: waits for status reply from set mode, set read command
* MCD_S_WAITREAD: wait for read ready, read data
*/
static void
mcd_timeout(void *arg)
{
struct mcd_softc *sc;
sc = (struct mcd_softc *)arg;
mcd_doread(sc, sc->ch_state, sc->ch_mbxsave);
}
static void
mcd_doread(struct mcd_softc *sc, int state, struct mcd_mbx *mbxin)
{
struct mcd_mbx *mbx;
struct bio *bp;
int rm, i, k;
struct mcd_read2 rbuf;
int blknum;
caddr_t addr;
mbx = (state!=MCD_S_BEGIN) ? sc->ch_mbxsave : mbxin;
bp = mbx->bp;
loop:
switch (state) {
case MCD_S_BEGIN:
mbx = sc->ch_mbxsave = mbxin;
case MCD_S_BEGIN1:
retry_status:
/* get status */
MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDGETSTAT);
mbx->count = RDELAY_WAITSTAT;
sc->ch_state = MCD_S_WAITSTAT;
sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
return;
case MCD_S_WAITSTAT:
sc->ch_state = MCD_S_WAITSTAT;
untimeout(mcd_timeout,(caddr_t)sc, sc->ch);
if (mbx->count-- >= 0) {
if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) {
sc->ch_state = MCD_S_WAITSTAT;
timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
return;
}
sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
if (sc->data.status & MCD_ST_CMDCHECK)
goto retry_status;
if (mcd_setflags(sc) < 0)
goto changed;
MCD_TRACE("got WAITSTAT delay=%d\n",
RDELAY_WAITSTAT-mbx->count);
/* reject, if audio active */
if (sc->data.status & MCDAUDIOBSY) {
device_printf(sc->dev, "audio is active\n");
goto readerr;
}
retry_mode:
/* to check for raw/cooked mode */
if (sc->data.flags & MCDREADRAW) {
rm = MCD_MD_RAW;
mbx->sz = MCDRBLK;
} else {
rm = MCD_MD_COOKED;
mbx->sz = sc->data.blksize;
}
if (rm == sc->data.curr_mode)
goto modedone;
mbx->count = RDELAY_WAITMODE;
sc->data.curr_mode = MCD_MD_UNKNOWN;
mbx->mode = rm;
MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSETMODE);
MCD_WRITE(sc, MCD_REG_COMMAND, rm);
sc->ch_state = MCD_S_WAITMODE;
sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
return;
} else {
device_printf(sc->dev, "timeout getstatus\n");
goto readerr;
}
case MCD_S_WAITMODE:
sc->ch_state = MCD_S_WAITMODE;
untimeout(mcd_timeout, (caddr_t)sc, sc->ch);
if (mbx->count-- < 0) {
device_printf(sc->dev, "timeout set mode\n");
goto readerr;
}
if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL) {
sc->ch_state = MCD_S_WAITMODE;
sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100);
return;
}
sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
if (sc->data.status & MCD_ST_CMDCHECK) {
sc->data.curr_mode = MCD_MD_UNKNOWN;
goto retry_mode;
}
if (mcd_setflags(sc) < 0)
goto changed;
sc->data.curr_mode = mbx->mode;
MCD_TRACE("got WAITMODE delay=%d\n",
RDELAY_WAITMODE-mbx->count);
modedone:
/* for first block */
mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz;
mbx->skip = 0;
nextblock:
blknum = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz;
MCD_TRACE("mcd_doread: read blknum=%d for bp=%p\n",
blknum, bp);
/* build parameter block */
hsg2msf(blknum,rbuf.start_msf);
retry_read:
/* send the read command */
critical_enter();
MCD_WRITE(sc, MCD_REG_COMMAND, sc->data.read_command);
MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[0]);
MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[1]);
MCD_WRITE(sc, MCD_REG_COMMAND, rbuf.start_msf[2]);
MCD_WRITE(sc, MCD_REG_COMMAND, 0);
MCD_WRITE(sc, MCD_REG_COMMAND, 0);
MCD_WRITE(sc, MCD_REG_COMMAND, 1);
critical_exit();
/* Spin briefly (<= 2ms) to avoid missing next block */
for (i = 0; i < 20; i++) {
k = MCD_READ(sc, MCD_FLAGS);
if (!(k & MFL_DATA_NOT_AVAIL))
goto got_it;
DELAY(100);
}
mbx->count = RDELAY_WAITREAD;
sc->ch_state = MCD_S_WAITREAD;
sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
return;
case MCD_S_WAITREAD:
sc->ch_state = MCD_S_WAITREAD;
untimeout(mcd_timeout, (caddr_t)sc, sc->ch);
if (mbx->count-- > 0) {
k = MCD_READ(sc, MCD_FLAGS);
if (!(k & MFL_DATA_NOT_AVAIL)) { /* XXX */
MCD_TRACE("got data delay=%d\n",
RDELAY_WAITREAD-mbx->count);
got_it:
/* data is ready */
addr = bp->bio_data + mbx->skip;
MCD_WRITE(sc, MCD_REG_CTL2,0x04); /* XXX */
for (i=0; i<mbx->sz; i++)
*addr++ = MCD_READ(sc, MCD_REG_RDATA);
MCD_WRITE(sc, MCD_REG_CTL2,0x0c); /* XXX */
k = MCD_READ(sc, MCD_FLAGS);
/* If we still have some junk, read it too */
if (!(k & MFL_DATA_NOT_AVAIL)) {
MCD_WRITE(sc, MCD_REG_CTL2, 0x04); /* XXX */
(void)MCD_READ(sc, MCD_REG_RDATA);
(void)MCD_READ(sc, MCD_REG_RDATA);
MCD_WRITE(sc, MCD_REG_CTL2, 0x0c); /* XXX */
}
if (--mbx->nblk > 0) {
mbx->skip += mbx->sz;
goto nextblock;
}
/* return buffer */
bp->bio_resid = 0;
biodone(bp);
sc->data.flags &= ~(MCDMBXBSY|MCDREADRAW);
mcd_start(sc);
return;
}
if (!(k & MFL_STATUS_NOT_AVAIL)) {
sc->data.status = MCD_READ(sc, MCD_REG_STATUS) & 0xFF;
if (sc->data.status & MCD_ST_CMDCHECK)
goto retry_read;
if (mcd_setflags(sc) < 0)
goto changed;
}
sc->ch_state = MCD_S_WAITREAD;
sc->ch = timeout(mcd_timeout, (caddr_t)sc, hz/100); /* XXX */
return;
} else {
device_printf(sc->dev, "timeout read data\n");
goto readerr;
}
}
readerr:
if (mbx->retry-- > 0) {
device_printf(sc->dev, "retrying\n");
state = MCD_S_BEGIN1;
goto loop;
}
harderr:
/* invalidate the buffer */
bp->bio_flags |= BIO_ERROR;
bp->bio_resid = bp->bio_bcount;
biodone(bp);
sc->data.flags &= ~(MCDMBXBSY|MCDREADRAW);
mcd_start(sc);
return;
changed:
device_printf(sc->dev, "media changed\n");
goto harderr;
#ifdef NOTDEF
device_printf(sc->dev, "unit timeout, resetting\n");
MCD_WRITE(sc, MCD_REG_RESET, MCD_CMDRESET);
DELAY(300000);
(void)mcd_getstat(sc, 1);
(void)mcd_getstat(sc, 1);
/*sc->data.status &= ~MCDDSKCHNG; */
sc->data.debug = 1; /* preventive set debug mode */
#endif
}
static int
mcd_lock_door(struct mcd_softc *sc, int lock)
{
MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDLOCKDRV);
MCD_WRITE(sc, MCD_REG_COMMAND, lock);
if (mcd_getstat(sc, 0) == -1)
return (EIO);
return (0);
}
static int
mcd_close_tray(struct mcd_softc *sc)
{
int retry, r;
if (mcd_getstat(sc, 1) == -1)
return (EIO);
if (sc->data.status & MCDDOOROPEN) {
MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDCLOSETRAY);
for (retry = 0; retry < CLOSE_TRAY_SECS * WAIT_FRAC; retry++) {
if (MCD_READ(sc, MCD_FLAGS) & MFL_STATUS_NOT_AVAIL)
(void) tsleep((caddr_t)sc, PSOCK | PCATCH, "mcdcls", hz/WAIT_FRAC);
else {
if ((r = mcd_getstat(sc, 0)) == -1)
return (EIO);
return (0);
}
}
return (ENXIO);
}
return (0);
}
static int
mcd_eject(struct mcd_softc *sc)
{
int r;
if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
return (EIO);
if (sc->data.status & MCDDOOROPEN)
return (0);
if ((r = mcd_stop(sc)) == EIO)
return (r);
MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDEJECTDISK);
if (mcd_getstat(sc, 0) == -1)
return (EIO);
return (0);
}
static int
mcd_inject(struct mcd_softc *sc)
{
if (mcd_getstat(sc, 1) == -1) /* detect disk change too */
return (EIO);
if (sc->data.status & MCDDOOROPEN)
return mcd_close_tray(sc);
return (0);
}
static int
mcd_hard_reset(struct mcd_softc *sc)
{
MCD_WRITE(sc, MCD_REG_RESET, MCD_CMDRESET);
sc->data.curr_mode = MCD_MD_UNKNOWN;
sc->data.audio_status = CD_AS_AUDIO_INVALID;
return (0);
}
static void
mcd_soft_reset(struct mcd_softc *sc)
{
sc->data.flags &= (MCDINIT|MCDPROBING|MCDNEWMODEL);
sc->data.curr_mode = MCD_MD_UNKNOWN;
sc->data.partflags = 0;
sc->data.audio_status = CD_AS_AUDIO_INVALID;
}
static int
mcd_setmode(struct mcd_softc *sc, int mode)
{
int retry, st;
if (sc->data.curr_mode == mode)
return (0);
if (sc->data.debug)
device_printf(sc->dev, "setting mode to %d\n", mode);
for(retry=0; retry<MCD_RETRYS; retry++)
{
sc->data.curr_mode = MCD_MD_UNKNOWN;
MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSETMODE);
MCD_WRITE(sc, MCD_REG_COMMAND, mode);
if ((st = mcd_getstat(sc, 0)) >= 0) {
sc->data.curr_mode = mode;
return (0);
}
if (st == -2) {
device_printf(sc->dev, "media changed\n");
break;
}
}
return (-1);
}
static int
mcd_toc_header(struct mcd_softc *sc, struct ioc_toc_header *th)
{
int r;
if ((r = mcd_volinfo(sc)) != 0)
return (r);
th->starting_track = bcd2bin(sc->data.volinfo.trk_low);
th->ending_track = bcd2bin(sc->data.volinfo.trk_high);
th->len = 2 * sizeof(u_char) /* start & end tracks */ +
(th->ending_track + 1 - th->starting_track + 1) *
sizeof(struct cd_toc_entry);
return (0);
}
static int
mcd_read_toc(struct mcd_softc *sc)
{
struct ioc_toc_header th;
struct mcd_qchninfo q;
int rc, trk, idx, retry;
/* Only read TOC if needed */
if (sc->data.flags & MCDTOC)
return (0);
if (sc->data.debug)
device_printf(sc->dev, "reading toc header\n");
if ((rc = mcd_toc_header(sc, &th)) != 0)
return (rc);
if (mcd_send(sc, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0)
return (EIO);
if (mcd_setmode(sc, MCD_MD_TOC) != 0)
return (EIO);
if (sc->data.debug)
device_printf(sc->dev, "get_toc reading qchannel info\n");
for(trk=th.starting_track; trk<=th.ending_track; trk++)
sc->data.toc[trk].idx_no = 0;
trk = th.ending_track - th.starting_track + 1;
for(retry=0; retry<600 && trk>0; retry++)
{
if (mcd_getqchan(sc, &q) < 0) break;
idx = bcd2bin(q.idx_no);
if (idx>=th.starting_track && idx<=th.ending_track && q.trk_no==0) {
if (sc->data.toc[idx].idx_no == 0) {
sc->data.toc[idx] = q;
trk--;
}
}
}
if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
return (EIO);
if (trk != 0)
return (ENXIO);
/* add a fake last+1 */
idx = th.ending_track + 1;
sc->data.toc[idx].control = sc->data.toc[idx-1].control;
sc->data.toc[idx].addr_type = sc->data.toc[idx-1].addr_type;
sc->data.toc[idx].trk_no = 0;
sc->data.toc[idx].idx_no = MCD_LASTPLUS1;
sc->data.toc[idx].hd_pos_msf[0] = sc->data.volinfo.vol_msf[0];
sc->data.toc[idx].hd_pos_msf[1] = sc->data.volinfo.vol_msf[1];
sc->data.toc[idx].hd_pos_msf[2] = sc->data.volinfo.vol_msf[2];
if (sc->data.debug)
{ int i;
for (i = th.starting_track; i <= idx; i++)
device_printf(sc->dev, "trk %d idx %d pos %d %d %d\n",
i,
sc->data.toc[i].idx_no > 0x99 ? sc->data.toc[i].idx_no :
bcd2bin(sc->data.toc[i].idx_no),
bcd2bin(sc->data.toc[i].hd_pos_msf[0]),
bcd2bin(sc->data.toc[i].hd_pos_msf[1]),
bcd2bin(sc->data.toc[i].hd_pos_msf[2]));
}
sc->data.flags |= MCDTOC;
return (0);
}
#if 0
static int
mcd_toc_entry(struct mcd_softc *sc, struct ioc_read_toc_single_entry *te)
{
struct ioc_toc_header th;
int rc, trk;
if (te->address_format != CD_MSF_FORMAT
&& te->address_format != CD_LBA_FORMAT)
return (EINVAL);
/* Copy the toc header */
if ((rc = mcd_toc_header(sc, &th)) != 0)
return (rc);
/* verify starting track */
trk = te->track;
if (trk == 0)
trk = th.starting_track;
else if (trk == MCD_LASTPLUS1)
trk = th.ending_track + 1;
else if (trk < th.starting_track || trk > th.ending_track + 1)
return (EINVAL);
/* Make sure we have a valid toc */
if ((rc=mcd_read_toc(sc)) != 0)
return (rc);
/* Copy the TOC data. */
if (sc->data.toc[trk].idx_no == 0)
return (EIO);
te->entry.control = sc->data.toc[trk].control;
te->entry.addr_type = sc->data.toc[trk].addr_type;
te->entry.track =
sc->data.toc[trk].idx_no > 0x99 ? sc->data.toc[trk].idx_no :
bcd2bin(sc->data.toc[trk].idx_no);
switch (te->address_format) {
case CD_MSF_FORMAT:
te->entry.addr.msf.unused = 0;
te->entry.addr.msf.minute = bcd2bin(sc->data.toc[trk].hd_pos_msf[0]);
te->entry.addr.msf.second = bcd2bin(sc->data.toc[trk].hd_pos_msf[1]);
te->entry.addr.msf.frame = bcd2bin(sc->data.toc[trk].hd_pos_msf[2]);
break;
case CD_LBA_FORMAT:
te->entry.addr.lba = htonl(msf2hsg(sc->data.toc[trk].hd_pos_msf, 0));
break;
}
return (0);
}
#endif
static int
mcd_toc_entrys(struct mcd_softc *sc, struct ioc_read_toc_entry *te)
{
struct cd_toc_entry entries[MCD_MAXTOCS];
struct ioc_toc_header th;
int rc, n, trk, len;
if ( te->data_len < sizeof(entries[0])
|| (te->data_len % sizeof(entries[0])) != 0
|| (te->address_format != CD_MSF_FORMAT
&& te->address_format != CD_LBA_FORMAT)
)
return (EINVAL);
/* Copy the toc header */
if ((rc = mcd_toc_header(sc, &th)) != 0)
return (rc);
/* verify starting track */
trk = te->starting_track;
if (trk == 0)
trk = th.starting_track;
else if (trk == MCD_LASTPLUS1)
trk = th.ending_track + 1;
else if (trk < th.starting_track || trk > th.ending_track + 1)
return (EINVAL);
len = ((th.ending_track + 1 - trk) + 1) *
sizeof(entries[0]);
if (te->data_len < len)
len = te->data_len;
if (len > sizeof(entries))
return (EINVAL);
/* Make sure we have a valid toc */
if ((rc=mcd_read_toc(sc)) != 0)
return (rc);
/* Copy the TOC data. */
for (n = 0; len > 0 && trk <= th.ending_track + 1; trk++) {
if (sc->data.toc[trk].idx_no == 0)
continue;
entries[n].control = sc->data.toc[trk].control;
entries[n].addr_type = sc->data.toc[trk].addr_type;
entries[n].track =
sc->data.toc[trk].idx_no > 0x99 ? sc->data.toc[trk].idx_no :
bcd2bin(sc->data.toc[trk].idx_no);
switch (te->address_format) {
case CD_MSF_FORMAT:
entries[n].addr.msf.unused = 0;
entries[n].addr.msf.minute = bcd2bin(sc->data.toc[trk].hd_pos_msf[0]);
entries[n].addr.msf.second = bcd2bin(sc->data.toc[trk].hd_pos_msf[1]);
entries[n].addr.msf.frame = bcd2bin(sc->data.toc[trk].hd_pos_msf[2]);
break;
case CD_LBA_FORMAT:
entries[n].addr.lba = htonl(msf2hsg(sc->data.toc[trk].hd_pos_msf, 0));
break;
}
len -= sizeof(struct cd_toc_entry);
n++;
}
/* copy the data back */
return copyout(entries, te->data, n * sizeof(struct cd_toc_entry));
}
static int
mcd_stop(struct mcd_softc *sc)
{
/* Verify current status */
if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS &&
sc->data.audio_status != CD_AS_PLAY_PAUSED &&
sc->data.audio_status != CD_AS_PLAY_COMPLETED) {
if (sc->data.debug)
device_printf(sc->dev,
"stop attempted when not playing, audio status %d\n",
sc->data.audio_status);
return (EINVAL);
}
if (sc->data.audio_status == CD_AS_PLAY_IN_PROGRESS)
if (mcd_send(sc, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0)
return (EIO);
sc->data.audio_status = CD_AS_PLAY_COMPLETED;
return (0);
}
static int
mcd_getqchan(struct mcd_softc *sc, struct mcd_qchninfo *q)
{
if (mcd_send(sc, MCD_CMDGETQCHN, MCD_RETRYS) < 0)
return (-1);
if (mcd_get(sc, (char *) q, sizeof(struct mcd_qchninfo)) < 0)
return (-1);
if (sc->data.debug) {
device_printf(sc->dev,
"getqchan control=0x%x addr_type=0x%x trk=%d ind=%d ttm=%d:%d.%d dtm=%d:%d.%d\n",
q->control, q->addr_type,
bcd2bin(q->trk_no),
bcd2bin(q->idx_no),
bcd2bin(q->trk_size_msf[0]),
bcd2bin(q->trk_size_msf[1]),
bcd2bin(q->trk_size_msf[2]),
bcd2bin(q->hd_pos_msf[0]),
bcd2bin(q->hd_pos_msf[1]),
bcd2bin(q->hd_pos_msf[2]));
}
return (0);
}
static int
mcd_subchan(struct mcd_softc *sc, struct ioc_read_subchannel *sch)
{
struct mcd_qchninfo q;
struct cd_sub_channel_info data;
int lba;
if (sc->data.debug)
device_printf(sc->dev, "subchan af=%d, df=%d\n",
sch->address_format,
sch->data_format);
if (sch->address_format != CD_MSF_FORMAT &&
sch->address_format != CD_LBA_FORMAT)
return (EINVAL);
if (sch->data_format != CD_CURRENT_POSITION &&
sch->data_format != CD_MEDIA_CATALOG)
return (EINVAL);
if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
return (EIO);
if (mcd_getqchan(sc, &q) < 0)
return (EIO);
data.header.audio_status = sc->data.audio_status;
data.what.position.data_format = sch->data_format;
switch (sch->data_format) {
case CD_MEDIA_CATALOG:
data.what.media_catalog.mc_valid = 1;
data.what.media_catalog.mc_number[0] = '\0';
break;
case CD_CURRENT_POSITION:
data.what.position.control = q.control;
data.what.position.addr_type = q.addr_type;
data.what.position.track_number = bcd2bin(q.trk_no);
data.what.position.index_number = bcd2bin(q.idx_no);
switch (sch->address_format) {
case CD_MSF_FORMAT:
data.what.position.reladdr.msf.unused = 0;
data.what.position.reladdr.msf.minute = bcd2bin(q.trk_size_msf[0]);
data.what.position.reladdr.msf.second = bcd2bin(q.trk_size_msf[1]);
data.what.position.reladdr.msf.frame = bcd2bin(q.trk_size_msf[2]);
data.what.position.absaddr.msf.unused = 0;
data.what.position.absaddr.msf.minute = bcd2bin(q.hd_pos_msf[0]);
data.what.position.absaddr.msf.second = bcd2bin(q.hd_pos_msf[1]);
data.what.position.absaddr.msf.frame = bcd2bin(q.hd_pos_msf[2]);
break;
case CD_LBA_FORMAT:
lba = msf2hsg(q.trk_size_msf, 1);
/*
* Pre-gap has index number of 0, and decreasing MSF
* address. Must be converted to negative LBA, per
* SCSI spec.
*/
if (data.what.position.index_number == 0)
lba = -lba;
data.what.position.reladdr.lba = htonl(lba);
data.what.position.absaddr.lba = htonl(msf2hsg(q.hd_pos_msf, 0));
break;
}
break;
}
return copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len));
}
static int
mcd_playmsf(struct mcd_softc *sc, struct ioc_play_msf *p)
{
struct mcd_read2 pb;
if (sc->data.debug)
device_printf(sc->dev, "playmsf: from %d:%d.%d to %d:%d.%d\n",
p->start_m, p->start_s, p->start_f,
p->end_m, p->end_s, p->end_f);
if ((p->start_m * 60 * 75 + p->start_s * 75 + p->start_f) >=
(p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) ||
(p->end_m * 60 * 75 + p->end_s * 75 + p->end_f) >
M_msf(sc->data.volinfo.vol_msf) * 60 * 75 +
S_msf(sc->data.volinfo.vol_msf) * 75 +
F_msf(sc->data.volinfo.vol_msf))
return (EINVAL);
pb.start_msf[0] = bin2bcd(p->start_m);
pb.start_msf[1] = bin2bcd(p->start_s);
pb.start_msf[2] = bin2bcd(p->start_f);
pb.end_msf[0] = bin2bcd(p->end_m);
pb.end_msf[1] = bin2bcd(p->end_s);
pb.end_msf[2] = bin2bcd(p->end_f);
if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
return (EIO);
return mcd_play(sc, &pb);
}
static int
mcd_playtracks(struct mcd_softc *sc, struct ioc_play_track *pt)
{
struct mcd_read2 pb;
int a = pt->start_track;
int z = pt->end_track;
int rc, i;
if ((rc = mcd_read_toc(sc)) != 0)
return (rc);
if (sc->data.debug)
device_printf(sc->dev, "playtracks from %d:%d to %d:%d\n",
a, pt->start_index, z, pt->end_index);
if ( a < bcd2bin(sc->data.volinfo.trk_low)
|| a > bcd2bin(sc->data.volinfo.trk_high)
|| a > z
|| z < bcd2bin(sc->data.volinfo.trk_low)
|| z > bcd2bin(sc->data.volinfo.trk_high))
return (EINVAL);
for (i = 0; i < 3; i++) {
pb.start_msf[i] = sc->data.toc[a].hd_pos_msf[i];
pb.end_msf[i] = sc->data.toc[z+1].hd_pos_msf[i];
}
if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
return (EIO);
return mcd_play(sc, &pb);
}
static int
mcd_playblocks(struct mcd_softc *sc, struct ioc_play_blocks *p)
{
struct mcd_read2 pb;
if (sc->data.debug)
device_printf(sc->dev, "playblocks: blkno %d length %d\n",
p->blk, p->len);
if (p->blk > sc->data.disksize || p->len > sc->data.disksize ||
p->blk < 0 || p->len < 0 ||
(p->blk + p->len) > sc->data.disksize)
return (EINVAL);
hsg2msf(p->blk, pb.start_msf);
hsg2msf(p->blk + p->len, pb.end_msf);
if (mcd_setmode(sc, MCD_MD_COOKED) != 0)
return (EIO);
return mcd_play(sc, &pb);
}
static int
mcd_play(struct mcd_softc *sc, struct mcd_read2 *pb)
{
int retry, st = -1, status;
sc->data.lastpb = *pb;
for(retry=0; retry<MCD_RETRYS; retry++) {
critical_enter();
MCD_WRITE(sc, MCD_REG_COMMAND, MCD_CMDSINGLESPEEDREAD);
MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[0]);
MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[1]);
MCD_WRITE(sc, MCD_REG_COMMAND, pb->start_msf[2]);
MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[0]);
MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[1]);
MCD_WRITE(sc, MCD_REG_COMMAND, pb->end_msf[2]);
critical_exit();
status=mcd_getstat(sc, 0);
if (status == -1)
continue;
else if (status != -2)
st = 0;
break;
}
if (status == -2) {
device_printf(sc->dev, "media changed\n");
return (ENXIO);
}
if (sc->data.debug)
device_printf(sc->dev,
"mcd_play retry=%d, status=0x%02x\n", retry, status);
if (st < 0)
return (ENXIO);
sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
return (0);
}
static int
mcd_pause(struct mcd_softc *sc)
{
struct mcd_qchninfo q;
int rc;
/* Verify current status */
if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS &&
sc->data.audio_status != CD_AS_PLAY_PAUSED) {
if (sc->data.debug)
device_printf(sc->dev,
"pause attempted when not playing, audio status %d\n",
sc->data.audio_status);
return (EINVAL);
}
/* Get the current position */
if (mcd_getqchan(sc, &q) < 0)
return (EIO);
/* Copy it into lastpb */
sc->data.lastpb.start_msf[0] = q.hd_pos_msf[0];
sc->data.lastpb.start_msf[1] = q.hd_pos_msf[1];
sc->data.lastpb.start_msf[2] = q.hd_pos_msf[2];
/* Stop playing */
if ((rc=mcd_stop(sc)) != 0)
return (rc);
/* Set the proper status and exit */
sc->data.audio_status = CD_AS_PLAY_PAUSED;
return (0);
}
static int
mcd_resume(struct mcd_softc *sc)
{
if (sc->data.audio_status != CD_AS_PLAY_PAUSED)
return (EINVAL);
return mcd_play(sc, &sc->data.lastpb);
}
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