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NetBSD/sys/dev/midi.c
jdolecek e0cc03a09b merge kqueue branch into -current 
kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
2002-10-23 09:10:23 +00:00

893 lines
19 KiB
C
Raw Blame History

/* $NetBSD: midi.c,v 1.30 2002/10/23 09:13:03 jdolecek Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (augustss@netbsd.org).
*
* 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 product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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>
__KERNEL_RCSID(0, "$NetBSD: midi.c,v 1.30 2002/10/23 09:13:03 jdolecek Exp $");
#include "midi.h"
#include "sequencer.h"
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/fcntl.h>
#include <sys/vnode.h>
#include <sys/select.h>
#include <sys/poll.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/syslog.h>
#include <sys/kernel.h>
#include <sys/signalvar.h>
#include <sys/conf.h>
#include <sys/audioio.h>
#include <sys/midiio.h>
#include <sys/device.h>
#include <dev/audio_if.h>
#include <dev/midi_if.h>
#include <dev/midivar.h>
#if NMIDI > 0
#ifdef AUDIO_DEBUG
#define DPRINTF(x) if (mididebug) printf x
#define DPRINTFN(n,x) if (mididebug >= (n)) printf x
int mididebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
int midi_wait;
void midi_in(void *, int);
void midi_out(void *);
int midi_start_output(struct midi_softc *, int);
int midi_sleep_timo(int *, char *, int);
int midi_sleep(int *, char *);
void midi_wakeup(int *);
void midi_initbuf(struct midi_buffer *);
void midi_timeout(void *);
int midiprobe(struct device *, struct cfdata *, void *);
void midiattach(struct device *, struct device *, void *);
int mididetach(struct device *, int);
int midiactivate(struct device *, enum devact);
dev_type_open(midiopen);
dev_type_close(midiclose);
dev_type_read(midiread);
dev_type_write(midiwrite);
dev_type_ioctl(midiioctl);
dev_type_poll(midipoll);
dev_type_kqfilter(midikqfilter);
const struct cdevsw midi_cdevsw = {
midiopen, midiclose, midiread, midiwrite, midiioctl,
nostop, notty, midipoll, nommap, midikqfilter,
};
CFATTACH_DECL(midi, sizeof(struct midi_softc),
midiprobe, midiattach, mididetach, midiactivate);
#ifdef MIDI_SAVE
#define MIDI_SAVE_SIZE 100000
int midicnt;
struct {
int cnt;
u_char buf[MIDI_SAVE_SIZE];
} midisave;
#define MIDI_GETSAVE _IOWR('m', 100, int)
#endif
extern struct cfdriver midi_cd;
int
midiprobe(struct device *parent, struct cfdata *match, void *aux)
{
struct audio_attach_args *sa = aux;
DPRINTFN(6,("midiprobe: type=%d sa=%p hw=%p\n",
sa->type, sa, sa->hwif));
return (sa->type == AUDIODEV_TYPE_MIDI);
}
void
midiattach(struct device *parent, struct device *self, void *aux)
{
struct midi_softc *sc = (void *)self;
struct audio_attach_args *sa = aux;
struct midi_hw_if *hwp = sa->hwif;
void *hdlp = sa->hdl;
DPRINTFN(6, ("MIDI attach\n"));
#ifdef DIAGNOSTIC
if (hwp == 0 ||
hwp->open == 0 ||
hwp->close == 0 ||
hwp->output == 0 ||
hwp->getinfo == 0) {
printf("midi: missing method\n");
return;
}
#endif
callout_init(&sc->sc_callout);
sc->hw_if = hwp;
sc->hw_hdl = hdlp;
sc->dying = 0;
midi_attach(sc, parent);
}
int
midiactivate(struct device *self, enum devact act)
{
struct midi_softc *sc = (struct midi_softc *)self;
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
case DVACT_DEACTIVATE:
sc->dying = 1;
break;
}
return (0);
}
int
mididetach(struct device *self, int flags)
{
struct midi_softc *sc = (struct midi_softc *)self;
int maj, mn;
DPRINTF(("midi_detach: sc=%p flags=%d\n", sc, flags));
sc->dying = 1;
wakeup(&sc->wchan);
wakeup(&sc->rchan);
/* locate the major number */
maj = cdevsw_lookup_major(&midi_cdevsw);
/* Nuke the vnodes for any open instances (calls close). */
mn = self->dv_unit;
vdevgone(maj, mn, mn, VCHR);
return (0);
}
void
midi_attach(struct midi_softc *sc, struct device *parent)
{
struct midi_info mi;
sc->isopen = 0;
midi_wait = MIDI_WAIT * hz / 1000000;
if (midi_wait == 0)
midi_wait = 1;
sc->sc_dev = parent;
sc->hw_if->getinfo(sc->hw_hdl, &mi);
sc->props = mi.props;
printf(": %s\n", mi.name);
}
int
midi_unit_count(void)
{
return midi_cd.cd_ndevs;
}
void
midi_initbuf(struct midi_buffer *mb)
{
mb->used = 0;
mb->usedhigh = MIDI_BUFSIZE;
mb->end = mb->start + mb->usedhigh;
mb->inp = mb->outp = mb->start;
}
int
midi_sleep_timo(int *chan, char *label, int timo)
{
int st;
if (!label)
label = "midi";
DPRINTFN(5, ("midi_sleep_timo: %p %s %d\n", chan, label, timo));
*chan = 1;
st = tsleep(chan, PWAIT | PCATCH, label, timo);
*chan = 0;
#ifdef MIDI_DEBUG
if (st != 0)
printf("midi_sleep: %d\n", st);
#endif
return st;
}
int
midi_sleep(int *chan, char *label)
{
return midi_sleep_timo(chan, label, 0);
}
void
midi_wakeup(int *chan)
{
if (*chan) {
DPRINTFN(5, ("midi_wakeup: %p\n", chan));
wakeup(chan);
*chan = 0;
}
}
static int midi_lengths[] = { 2,2,2,2,1,1,2,0 };
/* Number of bytes in a MIDI command */
#define MIDI_LENGTH(d) (midi_lengths[((d) >> 4) & 7])
void
midi_in(void *addr, int data)
{
struct midi_softc *sc = addr;
struct midi_buffer *mb = &sc->inbuf;
int i;
if (!sc->isopen)
return;
if (data == MIDI_ACK)
return;
DPRINTFN(3, ("midi_in: sc=%p data=0x%02x state=%d pos=%d\n",
sc, data, sc->in_state, sc->in_pos));
if (!(sc->flags & FREAD))
return; /* discard data if not reading */
switch(sc->in_state) {
case MIDI_IN_START:
if (MIDI_IS_STATUS(data)) {
switch(data) {
case 0xf0: /* Sysex */
sc->in_state = MIDI_IN_SYSEX;
break;
case 0xf1: /* MTC quarter frame */
case 0xf3: /* Song select */
sc->in_state = MIDI_IN_DATA;
sc->in_msg[0] = data;
sc->in_pos = 1;
sc->in_left = 1;
break;
case 0xf2: /* Song position pointer */
sc->in_state = MIDI_IN_DATA;
sc->in_msg[0] = data;
sc->in_pos = 1;
sc->in_left = 2;
break;
default:
if (MIDI_IS_COMMON(data)) {
sc->in_msg[0] = data;
sc->in_pos = 1;
goto deliver;
} else {
sc->in_state = MIDI_IN_DATA;
sc->in_msg[0] = sc->in_status = data;
sc->in_pos = 1;
sc->in_left = MIDI_LENGTH(data);
}
break;
}
} else {
if (MIDI_IS_STATUS(sc->in_status)) {
sc->in_state = MIDI_IN_DATA;
sc->in_msg[0] = sc->in_status;
sc->in_msg[1] = data;
sc->in_pos = 2;
sc->in_left = MIDI_LENGTH(sc->in_status) - 1;
}
}
return;
case MIDI_IN_DATA:
sc->in_msg[sc->in_pos++] = data;
if (--sc->in_left <= 0)
break; /* deliver data */
return;
case MIDI_IN_SYSEX:
if (data == MIDI_SYSEX_END)
sc->in_state = MIDI_IN_START;
return;
}
deliver:
sc->in_state = MIDI_IN_START;
#if NSEQUENCER > 0
if (sc->seqopen) {
extern void midiseq_in(struct midi_dev *,u_char *,int);
midiseq_in(sc->seq_md, sc->in_msg, sc->in_pos);
return;
}
#endif
if (mb->used + sc->in_pos > mb->usedhigh) {
DPRINTF(("midi_in: buffer full, discard data=0x%02x\n",
sc->in_msg[0]));
return;
}
for (i = 0; i < sc->in_pos; i++) {
*mb->inp++ = sc->in_msg[i];
if (mb->inp >= mb->end)
mb->inp = mb->start;
mb->used++;
}
midi_wakeup(&sc->rchan);
selnotify(&sc->rsel, 0);
if (sc->async)
psignal(sc->async, SIGIO);
}
void
midi_out(void *addr)
{
struct midi_softc *sc = addr;
if (!sc->isopen)
return;
DPRINTFN(3, ("midi_out: %p\n", sc));
midi_start_output(sc, 1);
}
int
midiopen(dev_t dev, int flags, int ifmt, struct proc *p)
{
struct midi_softc *sc;
struct midi_hw_if *hw;
int error;
sc = device_lookup(&midi_cd, MIDIUNIT(dev));
if (sc == NULL)
return (ENXIO);
if (sc->dying)
return (EIO);
DPRINTF(("midiopen %p\n", sc));
hw = sc->hw_if;
if (!hw)
return ENXIO;
if (sc->isopen)
return EBUSY;
sc->in_state = MIDI_IN_START;
sc->in_status = 0;
error = hw->open(sc->hw_hdl, flags, midi_in, midi_out, sc);
if (error)
return error;
sc->isopen++;
midi_initbuf(&sc->outbuf);
midi_initbuf(&sc->inbuf);
sc->flags = flags;
sc->rchan = 0;
sc->wchan = 0;
sc->pbus = 0;
sc->async = 0;
#ifdef MIDI_SAVE
if (midicnt != 0) {
midisave.cnt = midicnt;
midicnt = 0;
}
#endif
return 0;
}
int
midiclose(dev_t dev, int flags, int ifmt, struct proc *p)
{
int unit = MIDIUNIT(dev);
struct midi_softc *sc = midi_cd.cd_devs[unit];
struct midi_hw_if *hw = sc->hw_if;
int s, error;
DPRINTF(("midiclose %p\n", sc));
midi_start_output(sc, 0);
error = 0;
s = splaudio();
while (sc->outbuf.used > 0 && !error) {
DPRINTFN(2,("midiclose sleep used=%d\n", sc->outbuf.used));
error = midi_sleep_timo(&sc->wchan, "mid_dr", 30*hz);
}
splx(s);
sc->isopen = 0;
hw->close(sc->hw_hdl);
#if NSEQUENCER > 0
sc->seqopen = 0;
sc->seq_md = 0;
#endif
return 0;
}
int
midiread(dev_t dev, struct uio *uio, int ioflag)
{
int unit = MIDIUNIT(dev);
struct midi_softc *sc = midi_cd.cd_devs[unit];
struct midi_buffer *mb = &sc->inbuf;
int error;
u_char *outp;
int used, cc, n, resid;
int s;
DPRINTF(("midiread: %p, count=%lu\n", sc,
(unsigned long)uio->uio_resid));
if (sc->dying)
return EIO;
error = 0;
resid = uio->uio_resid;
while (uio->uio_resid == resid && !error) {
s = splaudio();
while (mb->used <= 0) {
if (ioflag & IO_NDELAY) {
splx(s);
return EWOULDBLOCK;
}
error = midi_sleep(&sc->rchan, "mid rd");
if (error) {
splx(s);
return error;
}
}
used = mb->used;
outp = mb->outp;
splx(s);
if (sc->dying)
return EIO;
cc = used; /* maximum to read */
n = mb->end - outp;
if (n < cc)
cc = n; /* don't read beyond end of buffer */
if (uio->uio_resid < cc)
cc = uio->uio_resid; /* and no more than we want */
DPRINTFN(3, ("midiread: uiomove cc=%d\n", cc));
error = uiomove(outp, cc, uio);
if (error)
break;
used -= cc;
outp += cc;
if (outp >= mb->end)
outp = mb->start;
s = splaudio();
mb->outp = outp;
mb->used = used;
splx(s);
}
return error;
}
void
midi_timeout(void *arg)
{
struct midi_softc *sc = arg;
DPRINTFN(3,("midi_timeout: %p\n", sc));
midi_start_output(sc, 1);
}
int
midi_start_output(struct midi_softc *sc, int intr)
{
struct midi_buffer *mb = &sc->outbuf;
u_char out;
int error;
int s;
int i;
error = 0;
if (sc->dying)
return EIO;
if (sc->pbus && !intr) {
DPRINTFN(4, ("midi_start_output: busy\n"));
return 0;
}
sc->pbus = (mb->used > 0)?1:0;
for (i = 0; i < MIDI_MAX_WRITE && mb->used > 0 &&
(!error || error==EINPROGRESS); i++) {
s = splaudio();
out = *mb->outp;
mb->outp++;
if (mb->outp >= mb->end)
mb->outp = mb->start;
mb->used--;
splx(s);
#ifdef MIDI_SAVE
midisave.buf[midicnt] = out;
midicnt = (midicnt + 1) % MIDI_SAVE_SIZE;
#endif
DPRINTFN(4, ("midi_start_output: %p i=%d, data=0x%02x\n",
sc, i, out));
error = sc->hw_if->output(sc->hw_hdl, out);
if ((sc->props & MIDI_PROP_OUT_INTR) && error!=EINPROGRESS)
/* If ointr is enabled, midi_start_output()
* normally writes only one byte,
* except hw_if->output() returns EINPROGRESS.
*/
break;
}
midi_wakeup(&sc->wchan);
selnotify(&sc->wsel, 0);
if (sc->async)
psignal(sc->async, SIGIO);
if (!(sc->props & MIDI_PROP_OUT_INTR) || error==EINPROGRESS) {
if (mb->used > 0)
callout_reset(&sc->sc_callout, midi_wait,
midi_timeout, sc);
else
sc->pbus = 0;
}
if ((sc->props & MIDI_PROP_OUT_INTR) && error==EINPROGRESS)
error = 0;
return error;
}
int
midiwrite(dev_t dev, struct uio *uio, int ioflag)
{
int unit = MIDIUNIT(dev);
struct midi_softc *sc = midi_cd.cd_devs[unit];
struct midi_buffer *mb = &sc->outbuf;
int error;
u_char *inp;
int used, cc, n;
int s;
DPRINTFN(2, ("midiwrite: %p, unit=%d, count=%lu\n", sc, unit,
(unsigned long)uio->uio_resid));
if (sc->dying)
return EIO;
error = 0;
while (uio->uio_resid > 0 && !error) {
s = splaudio();
if (mb->used >= mb->usedhigh) {
DPRINTFN(3,("midi_write: sleep used=%d hiwat=%d\n",
mb->used, mb->usedhigh));
if (ioflag & IO_NDELAY) {
splx(s);
return EWOULDBLOCK;
}
error = midi_sleep(&sc->wchan, "mid wr");
if (error) {
splx(s);
return error;
}
}
used = mb->used;
inp = mb->inp;
splx(s);
if (sc->dying)
return EIO;
cc = mb->usedhigh - used; /* maximum to write */
n = mb->end - inp;
if (n < cc)
cc = n; /* don't write beyond end of buffer */
if (uio->uio_resid < cc)
cc = uio->uio_resid; /* and no more than we have */
error = uiomove(inp, cc, uio);
#ifdef MIDI_DEBUG
if (error)
printf("midi_write:(1) uiomove failed %d; "
"cc=%d inp=%p\n",
error, cc, inp);
#endif
if (error)
break;
inp = mb->inp + cc;
if (inp >= mb->end)
inp = mb->start;
s = splaudio();
mb->inp = inp;
mb->used += cc;
splx(s);
error = midi_start_output(sc, 0);
}
return error;
}
/*
* This write routine is only called from sequencer code and expects
* a write that is smaller than the MIDI buffer.
*/
int
midi_writebytes(int unit, u_char *buf, int cc)
{
struct midi_softc *sc = midi_cd.cd_devs[unit];
struct midi_buffer *mb = &sc->outbuf;
int n, s;
DPRINTFN(2, ("midi_writebytes: %p, unit=%d, cc=%d\n", sc, unit, cc));
DPRINTFN(3, ("midi_writebytes: %x %x %x\n",buf[0],buf[1],buf[2]));
if (sc->dying)
return EIO;
s = splaudio();
if (mb->used + cc >= mb->usedhigh) {
splx(s);
return (EWOULDBLOCK);
}
n = mb->end - mb->inp;
if (cc < n)
n = cc;
mb->used += cc;
memcpy(mb->inp, buf, n);
mb->inp += n;
if (mb->inp >= mb->end) {
mb->inp = mb->start;
cc -= n;
if (cc > 0) {
memcpy(mb->inp, buf + n, cc);
mb->inp += cc;
}
}
splx(s);
return (midi_start_output(sc, 0));
}
int
midiioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
{
int unit = MIDIUNIT(dev);
struct midi_softc *sc = midi_cd.cd_devs[unit];
struct midi_hw_if *hw = sc->hw_if;
int error;
DPRINTF(("midiioctl: %p cmd=0x%08lx\n", sc, cmd));
if (sc->dying)
return EIO;
error = 0;
switch (cmd) {
case FIONBIO:
/* All handled in the upper FS layer. */
break;
case FIOASYNC:
if (*(int *)addr) {
if (sc->async)
return EBUSY;
sc->async = p;
DPRINTF(("midi_ioctl: FIOASYNC %p\n", p));
} else
sc->async = 0;
break;
#if 0
case MIDI_PRETIME:
/* XXX OSS
* This should set up a read timeout, but that's
* why we have poll(), so there's nothing yet. */
error = EINVAL;
break;
#endif
#ifdef MIDI_SAVE
case MIDI_GETSAVE:
error = copyout(&midisave, *(void **)addr, sizeof midisave);
break;
#endif
default:
if (hw->ioctl)
error = hw->ioctl(sc->hw_hdl, cmd, addr, flag, p);
else
error = EINVAL;
break;
}
return error;
}
int
midipoll(dev_t dev, int events, struct proc *p)
{
int unit = MIDIUNIT(dev);
struct midi_softc *sc = midi_cd.cd_devs[unit];
int revents = 0;
int s;
DPRINTF(("midipoll: %p events=0x%x\n", sc, events));
if (sc->dying)
return EIO;
s = splaudio();
if (events & (POLLIN | POLLRDNORM))
if (sc->inbuf.used > 0)
revents |= events & (POLLIN | POLLRDNORM);
if (events & (POLLOUT | POLLWRNORM))
if (sc->outbuf.used < sc->outbuf.usedhigh)
revents |= events & (POLLOUT | POLLWRNORM);
if (revents == 0) {
if (events & (POLLIN | POLLRDNORM))
selrecord(p, &sc->rsel);
if (events & (POLLOUT | POLLWRNORM))
selrecord(p, &sc->wsel);
}
splx(s);
return revents;
}
static void
filt_midirdetach(struct knote *kn)
{
struct midi_softc *sc = kn->kn_hook;
int s;
s = splaudio();
SLIST_REMOVE(&sc->rsel.si_klist, kn, knote, kn_selnext);
splx(s);
}
static int
filt_midiread(struct knote *kn, long hint)
{
struct midi_softc *sc = kn->kn_hook;
/* XXXLUKEM (thorpej): please make sure this is correct. */
kn->kn_data = sc->inbuf.used;
return (kn->kn_data > 0);
}
static const struct filterops midiread_filtops =
{ 1, NULL, filt_midirdetach, filt_midiread };
static void
filt_midiwdetach(struct knote *kn)
{
struct midi_softc *sc = kn->kn_hook;
int s;
s = splaudio();
SLIST_REMOVE(&sc->wsel.si_klist, kn, knote, kn_selnext);
splx(s);
}
static int
filt_midiwrite(struct knote *kn, long hint)
{
struct midi_softc *sc = kn->kn_hook;
/* XXXLUKEM (thorpej): please make sure this is correct. */
kn->kn_data = sc->outbuf.usedhigh - sc->outbuf.used;
return (kn->kn_data > 0);
}
static const struct filterops midiwrite_filtops =
{ 1, NULL, filt_midiwdetach, filt_midiwrite };
int
midikqfilter(dev_t dev, struct knote *kn)
{
int unit = MIDIUNIT(dev);
struct midi_softc *sc = midi_cd.cd_devs[unit];
struct klist *klist;
int s;
switch (kn->kn_filter) {
case EVFILT_READ:
klist = &sc->rsel.si_klist;
kn->kn_fop = &midiread_filtops;
break;
case EVFILT_WRITE:
klist = &sc->wsel.si_klist;
kn->kn_fop = &midiwrite_filtops;
break;
default:
return (1);
}
kn->kn_hook = sc;
s = splaudio();
SLIST_INSERT_HEAD(klist, kn, kn_selnext);
splx(s);
return (0);
}
void
midi_getinfo(dev_t dev, struct midi_info *mi)
{
struct midi_softc *sc;
sc = device_lookup(&midi_cd, MIDIUNIT(dev));
if (sc == NULL)
return;
if (sc->dying)
return;
sc->hw_if->getinfo(sc->hw_hdl, mi);
}
#endif /* NMIDI > 0 */
#if NMIDI > 0 || NMIDIBUS > 0
int audioprint(void *, const char *);
struct device *
midi_attach_mi(struct midi_hw_if *mhwp, void *hdlp, struct device *dev)
{
struct audio_attach_args arg;
#ifdef DIAGNOSTIC
if (mhwp == NULL) {
printf("midi_attach_mi: NULL\n");
return (0);
}
#endif
arg.type = AUDIODEV_TYPE_MIDI;
arg.hwif = mhwp;
arg.hdl = hdlp;
return (config_found(dev, &arg, audioprint));
}
#endif /* NMIDI > 0 || NMIDIBUS > 0 */
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