NetBSD/sys/dev/sequencer.c

1386 lines
29 KiB
C

/* $NetBSD: sequencer.c,v 1.16 2001/09/03 14:52:29 reinoud 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 "sequencer.h"
#if NSEQUENCER > 0
#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/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/midi_if.h>
#include <dev/midivar.h>
#include <dev/sequencervar.h>
#define ADDTIMEVAL(a, b) ( \
(a)->tv_sec += (b)->tv_sec, \
(a)->tv_usec += (b)->tv_usec, \
(a)->tv_usec > 1000000 ? ((a)->tv_sec++, (a)->tv_usec -= 1000000) : 0\
)
#define SUBTIMEVAL(a, b) ( \
(a)->tv_sec -= (b)->tv_sec, \
(a)->tv_usec -= (b)->tv_usec, \
(a)->tv_usec < 0 ? ((a)->tv_sec--, (a)->tv_usec += 1000000) : 0\
)
#ifdef AUDIO_DEBUG
#define DPRINTF(x) if (sequencerdebug) printf x
#define DPRINTFN(n,x) if (sequencerdebug >= (n)) printf x
int sequencerdebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
#define SEQ_CMD(b) ((b)->arr[0])
#define SEQ_EDEV(b) ((b)->arr[1])
#define SEQ_ECMD(b) ((b)->arr[2])
#define SEQ_ECHAN(b) ((b)->arr[3])
#define SEQ_ENOTE(b) ((b)->arr[4])
#define SEQ_EPARM(b) ((b)->arr[5])
#define SEQ_EP1(b) ((b)->arr[4])
#define SEQ_EP2(b) ((b)->arr[5])
#define SEQ_XCMD(b) ((b)->arr[1])
#define SEQ_XDEV(b) ((b)->arr[2])
#define SEQ_XCHAN(b) ((b)->arr[3])
#define SEQ_XNOTE(b) ((b)->arr[4])
#define SEQ_XVEL(b) ((b)->arr[5])
#define SEQ_TCMD(b) ((b)->arr[1])
#define SEQ_TPARM(b) ((b)->arr[4])
#define SEQ_NOTE_MAX 128
#define SEQ_NOTE_XXX 255
#define SEQ_VEL_OFF 0
#define RECALC_TICK(t) ((t)->tick = 60 * 1000000L / ((t)->tempo * (t)->timebase))
struct sequencer_softc seqdevs[NSEQUENCER];
void sequencerattach __P((int));
void seq_reset __P((struct sequencer_softc *));
int seq_do_command __P((struct sequencer_softc *, seq_event_rec *));
int seq_do_extcommand __P((struct sequencer_softc *, seq_event_rec *));
int seq_do_chnvoice __P((struct sequencer_softc *, seq_event_rec *));
int seq_do_chncommon __P((struct sequencer_softc *, seq_event_rec *));
int seq_do_timing __P((struct sequencer_softc *, seq_event_rec *));
int seq_do_local __P((struct sequencer_softc *, seq_event_rec *));
int seq_do_sysex __P((struct sequencer_softc *, seq_event_rec *));
int seq_do_fullsize __P((struct sequencer_softc *, seq_event_rec *,
struct uio *));
int seq_timer __P((struct sequencer_softc *, int, int, seq_event_rec *));
static int seq_input_event __P((struct sequencer_softc *, seq_event_rec *));
int seq_drain __P((struct sequencer_softc *));
void seq_startoutput __P((struct sequencer_softc *));
void seq_timeout __P((void *));
int seq_to_new __P((seq_event_rec *, struct uio *));
static int seq_sleep_timo(int *, char *, int);
static int seq_sleep(int *, char *);
static void seq_wakeup(int *);
struct midi_softc;
int midiseq_out __P((struct midi_dev *, u_char *, u_int, int));
struct midi_dev *midiseq_open __P((int, int));
void midiseq_close __P((struct midi_dev *));
void midiseq_reset __P((struct midi_dev *));
int midiseq_noteon __P((struct midi_dev *, int, int, int));
int midiseq_noteoff __P((struct midi_dev *, int, int, int));
int midiseq_keypressure __P((struct midi_dev *, int, int, int));
int midiseq_pgmchange __P((struct midi_dev *, int, int));
int midiseq_chnpressure __P((struct midi_dev *, int, int));
int midiseq_ctlchange __P((struct midi_dev *, int, int, int));
int midiseq_pitchbend __P((struct midi_dev *, int, int));
int midiseq_loadpatch __P((struct midi_dev *, struct sysex_info *,
struct uio *));
int midiseq_putc __P((struct midi_dev *, int));
void midiseq_in __P((struct midi_dev *, u_char *, int));
void
sequencerattach(n)
int n;
{
for (n = 0; n < NSEQUENCER; n++)
callout_init(&seqdevs[n].sc_callout);
}
int
sequenceropen(dev, flags, ifmt, p)
dev_t dev;
int flags, ifmt;
struct proc *p;
{
int unit = SEQUENCERUNIT(dev);
struct sequencer_softc *sc;
struct midi_dev *md;
int nmidi;
DPRINTF(("sequenceropen\n"));
if (unit >= NSEQUENCER)
return (ENXIO);
sc = &seqdevs[unit];
if (sc->isopen)
return EBUSY;
if (SEQ_IS_OLD(unit))
sc->mode = SEQ_OLD;
else
sc->mode = SEQ_NEW;
sc->isopen++;
sc->flags = flags & (FREAD|FWRITE);
sc->rchan = 0;
sc->wchan = 0;
sc->pbus = 0;
sc->async = 0;
sc->input_stamp = ~0;
sc->nmidi = 0;
nmidi = midi_unit_count();
sc->devs = malloc(nmidi * sizeof(struct midi_dev *),
M_DEVBUF, M_WAITOK);
for (unit = 0; unit < nmidi; unit++) {
md = midiseq_open(unit, flags);
if (md) {
sc->devs[sc->nmidi++] = md;
md->seq = sc;
}
}
sc->timer.timebase = 100;
sc->timer.tempo = 60;
sc->doingsysex = 0;
RECALC_TICK(&sc->timer);
sc->timer.last = 0;
microtime(&sc->timer.start);
SEQ_QINIT(&sc->inq);
SEQ_QINIT(&sc->outq);
sc->lowat = SEQ_MAXQ / 2;
seq_reset(sc);
DPRINTF(("sequenceropen: mode=%d, nmidi=%d\n", sc->mode, sc->nmidi));
return 0;
}
static int
seq_sleep_timo(chan, label, timo)
int *chan;
char *label;
int timo;
{
int st;
if (!label)
label = "seq";
DPRINTFN(5, ("seq_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("seq_sleep: %d\n", st);
#endif
return st;
}
static int
seq_sleep(chan, label)
int *chan;
char *label;
{
return seq_sleep_timo(chan, label, 0);
}
static void
seq_wakeup(chan)
int *chan;
{
if (*chan) {
DPRINTFN(5, ("seq_wakeup: %p\n", chan));
wakeup(chan);
*chan = 0;
}
}
int
seq_drain(sc)
struct sequencer_softc *sc;
{
int error;
DPRINTFN(3, ("seq_drain: %p, len=%d\n", sc, SEQ_QLEN(&sc->outq)));
seq_startoutput(sc);
error = 0;
while(!SEQ_QEMPTY(&sc->outq) && !error)
error = seq_sleep_timo(&sc->wchan, "seq_dr", 60*hz);
return (error);
}
void
seq_timeout(addr)
void *addr;
{
struct sequencer_softc *sc = addr;
DPRINTFN(4, ("seq_timeout: %p\n", sc));
sc->timeout = 0;
seq_startoutput(sc);
if (SEQ_QLEN(&sc->outq) < sc->lowat) {
seq_wakeup(&sc->wchan);
selwakeup(&sc->wsel);
if (sc->async)
psignal(sc->async, SIGIO);
}
}
void
seq_startoutput(sc)
struct sequencer_softc *sc;
{
struct sequencer_queue *q = &sc->outq;
seq_event_rec cmd;
if (sc->timeout)
return;
DPRINTFN(4, ("seq_startoutput: %p, len=%d\n", sc, SEQ_QLEN(q)));
while(!SEQ_QEMPTY(q) && !sc->timeout) {
SEQ_QGET(q, cmd);
seq_do_command(sc, &cmd);
}
}
int
sequencerclose(dev, flags, ifmt, p)
dev_t dev;
int flags, ifmt;
struct proc *p;
{
struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
int n, s;
DPRINTF(("sequencerclose: %p\n", sc));
seq_drain(sc);
s = splaudio();
if (sc->timeout) {
callout_stop(&sc->sc_callout);
sc->timeout = 0;
}
splx(s);
for (n = 0; n < sc->nmidi; n++)
midiseq_close(sc->devs[n]);
free(sc->devs, M_DEVBUF);
sc->isopen = 0;
return (0);
}
static int
seq_input_event(sc, cmd)
struct sequencer_softc *sc;
seq_event_rec *cmd;
{
struct sequencer_queue *q = &sc->inq;
DPRINTFN(2, ("seq_input_event: %02x %02x %02x %02x %02x %02x %02x %02x\n",
cmd->arr[0], cmd->arr[1], cmd->arr[2], cmd->arr[3],
cmd->arr[4], cmd->arr[5], cmd->arr[6], cmd->arr[7]));
if (SEQ_QFULL(q))
return (ENOMEM);
SEQ_QPUT(q, *cmd);
seq_wakeup(&sc->rchan);
selwakeup(&sc->rsel);
if (sc->async)
psignal(sc->async, SIGIO);
return 0;
}
void
seq_event_intr(addr, iev)
void *addr;
seq_event_rec *iev;
{
struct sequencer_softc *sc = addr;
union {
u_int32_t l;
u_int8_t b[4];
} u;
u_long t;
struct timeval now;
seq_event_rec ev;
microtime(&now);
SUBTIMEVAL(&now, &sc->timer.start);
t = now.tv_sec * 1000000 + now.tv_usec;
t /= sc->timer.tick;
if (t != sc->input_stamp) {
ev.arr[0] = SEQ_TIMING;
ev.arr[1] = TMR_WAIT_ABS;
ev.arr[2] = 0;
ev.arr[3] = 0;
u.l = t;
ev.arr[4] = u.b[0];
ev.arr[5] = u.b[1];
ev.arr[6] = u.b[2];
ev.arr[7] = u.b[3];
seq_input_event(sc, &ev);
sc->input_stamp = t;
}
seq_input_event(sc, iev);
}
int
sequencerread(dev, uio, ioflag)
dev_t dev;
struct uio *uio;
int ioflag;
{
struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
struct sequencer_queue *q = &sc->inq;
seq_event_rec ev;
int error, s;
DPRINTFN(20, ("sequencerread: %p, count=%d, ioflag=%x\n",
sc, (int) uio->uio_resid, ioflag));
if (sc->mode == SEQ_OLD) {
DPRINTFN(-1,("sequencerread: old read\n"));
return (EINVAL); /* XXX unimplemented */
}
error = 0;
while (SEQ_QEMPTY(q)) {
if (ioflag & IO_NDELAY)
return EWOULDBLOCK;
else {
error = seq_sleep(&sc->rchan, "seq rd");
if (error)
return error;
}
}
s = splaudio();
while (uio->uio_resid >= sizeof ev && !error && !SEQ_QEMPTY(q)) {
SEQ_QGET(q, ev);
error = uiomove(&ev, sizeof ev, uio);
}
splx(s);
return error;
}
int
sequencerwrite(dev, uio, ioflag)
dev_t dev;
struct uio *uio;
int ioflag;
{
struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
struct sequencer_queue *q = &sc->outq;
int error;
seq_event_rec cmdbuf;
int size;
DPRINTFN(2, ("sequencerwrite: %p, count=%d\n", sc, (int) uio->uio_resid));
error = 0;
size = sc->mode == SEQ_NEW ? sizeof cmdbuf : SEQOLD_CMDSIZE;
while (uio->uio_resid >= size) {
error = uiomove(&cmdbuf, size, uio);
if (error)
break;
if (sc->mode == SEQ_OLD)
if (seq_to_new(&cmdbuf, uio))
continue;
if (SEQ_CMD(&cmdbuf) == SEQ_FULLSIZE) {
/* We do it like OSS does, asynchronously */
error = seq_do_fullsize(sc, &cmdbuf, uio);
if (error)
break;
continue;
}
while (SEQ_QFULL(q)) {
seq_startoutput(sc);
if (SEQ_QFULL(q)) {
if (ioflag & IO_NDELAY)
return EWOULDBLOCK;
error = seq_sleep(&sc->wchan, "seq_wr");
if (error)
return error;
}
}
SEQ_QPUT(q, cmdbuf);
}
seq_startoutput(sc);
#ifdef SEQUENCER_DEBUG
if (error)
DPRINTFN(2, ("sequencerwrite: error=%d\n", error));
#endif
return error;
}
int
sequencerioctl(dev, cmd, addr, flag, p)
dev_t dev;
u_long cmd;
caddr_t addr;
int flag;
struct proc *p;
{
struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
struct synth_info *si;
struct midi_dev *md;
int devno;
int error;
int t;
DPRINTFN(2, ("sequencerioctl: %p cmd=0x%08lx\n", sc, cmd));
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(("sequencer_ioctl: FIOASYNC %p\n", p));
} else
sc->async = 0;
break;
case SEQUENCER_RESET:
seq_reset(sc);
break;
case SEQUENCER_PANIC:
seq_reset(sc);
/* Do more? OSS doesn't */
break;
case SEQUENCER_SYNC:
if (sc->flags == FREAD)
return 0;
seq_drain(sc);
error = 0;
break;
case SEQUENCER_INFO:
si = (struct synth_info*)addr;
devno = si->device;
if (devno < 0 || devno >= sc->nmidi)
return EINVAL;
md = sc->devs[devno];
strncpy(si->name, md->name, sizeof si->name);
si->synth_type = SYNTH_TYPE_MIDI;
si->synth_subtype = md->subtype;
si->nr_voices = md->nr_voices;
si->instr_bank_size = md->instr_bank_size;
si->capabilities = md->capabilities;
break;
case SEQUENCER_NRSYNTHS:
*(int *)addr = sc->nmidi;
break;
case SEQUENCER_NRMIDIS:
*(int *)addr = sc->nmidi;
break;
case SEQUENCER_OUTOFBAND:
DPRINTFN(3, ("sequencer_ioctl: OOB=%02x %02x %02x %02x %02x %02x %02x %02x\n",
*(u_char *)addr, *(u_char *)(addr+1),
*(u_char *)(addr+2), *(u_char *)(addr+3),
*(u_char *)(addr+4), *(u_char *)(addr+5),
*(u_char *)(addr+6), *(u_char *)(addr+7)));
error = seq_do_command(sc, (seq_event_rec *)addr);
break;
case SEQUENCER_TMR_TIMEBASE:
t = *(int *)addr;
if (t < 1)
t = 1;
if (t > 10000)
t = 10000;
sc->timer.timebase = t;
*(int *)addr = t;
RECALC_TICK(&sc->timer);
break;
case SEQUENCER_TMR_START:
error = seq_timer(sc, TMR_START, 0, 0);
break;
case SEQUENCER_TMR_STOP:
error = seq_timer(sc, TMR_STOP, 0, 0);
break;
case SEQUENCER_TMR_CONTINUE:
error = seq_timer(sc, TMR_CONTINUE, 0, 0);
break;
case SEQUENCER_TMR_TEMPO:
t = *(int *)addr;
if (t < 8)
t = 8;
if (t > 250)
t = 250;
sc->timer.tempo = t;
*(int *)addr = t;
RECALC_TICK(&sc->timer);
break;
case SEQUENCER_TMR_SOURCE:
*(int *)addr = SEQUENCER_TMR_INTERNAL;
break;
case SEQUENCER_TMR_METRONOME:
/* noop */
break;
case SEQUENCER_THRESHOLD:
t = SEQ_MAXQ - *(int *)addr / sizeof (seq_event_rec);
if (t < 1)
t = 1;
if (t > SEQ_MAXQ)
t = SEQ_MAXQ;
sc->lowat = t;
break;
case SEQUENCER_CTRLRATE:
*(int *)addr = (sc->timer.tempo*sc->timer.timebase + 30) / 60;
break;
case SEQUENCER_GETTIME:
{
struct timeval now;
u_long t;
microtime(&now);
SUBTIMEVAL(&now, &sc->timer.start);
t = now.tv_sec * 1000000 + now.tv_usec;
t /= sc->timer.tick;
*(int *)addr = t;
break;
}
default:
DPRINTFN(-1,("sequencer_ioctl: unimpl %08lx\n", cmd));
error = EINVAL;
break;
}
return error;
}
int
sequencerpoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
int revents = 0;
DPRINTF(("sequencerpoll: %p events=0x%x\n", sc, events));
if (events & (POLLIN | POLLRDNORM))
if (!SEQ_QEMPTY(&sc->inq))
revents |= events & (POLLIN | POLLRDNORM);
if (events & (POLLOUT | POLLWRNORM))
if (SEQ_QLEN(&sc->outq) < sc->lowat)
revents |= events & (POLLOUT | POLLWRNORM);
if (revents == 0) {
if (events & (POLLIN | POLLRDNORM))
selrecord(p, &sc->rsel);
if (events & (POLLOUT | POLLWRNORM))
selrecord(p, &sc->wsel);
}
return revents;
}
void
seq_reset(sc)
struct sequencer_softc *sc;
{
int i, chn;
struct midi_dev *md;
for (i = 0; i < sc->nmidi; i++) {
md = sc->devs[i];
midiseq_reset(md);
for (chn = 0; chn < MAXCHAN; chn++) {
midiseq_ctlchange(md, chn, MIDI_CTRL_ALLOFF, 0);
midiseq_ctlchange(md, chn, MIDI_CTRL_RESET, 0);
midiseq_pitchbend(md, chn, MIDI_BEND_NEUTRAL);
}
}
}
int
seq_do_command(sc, b)
struct sequencer_softc *sc;
seq_event_rec *b;
{
int dev;
DPRINTFN(4, ("seq_do_command: %p cmd=0x%02x\n", sc, SEQ_CMD(b)));
switch(SEQ_CMD(b)) {
case SEQ_LOCAL:
return seq_do_local(sc, b);
case SEQ_TIMING:
return seq_do_timing(sc, b);
case SEQ_CHN_VOICE:
return seq_do_chnvoice(sc, b);
case SEQ_CHN_COMMON:
return seq_do_chncommon(sc, b);
case SEQ_SYSEX:
return seq_do_sysex(sc, b);
/* COMPAT */
case SEQOLD_MIDIPUTC:
dev = b->arr[2];
if (dev < 0 || dev >= sc->nmidi)
return (ENXIO);
return midiseq_putc(sc->devs[dev], b->arr[1]);
default:
DPRINTFN(-1,("seq_do_command: unimpl command %02x\n",
SEQ_CMD(b)));
return (EINVAL);
}
}
int
seq_do_chnvoice(sc, b)
struct sequencer_softc *sc;
seq_event_rec *b;
{
int cmd, dev, chan, note, parm, voice;
int error;
struct midi_dev *md;
dev = SEQ_EDEV(b);
if (dev < 0 || dev >= sc->nmidi)
return ENXIO;
md = sc->devs[dev];
cmd = SEQ_ECMD(b);
chan = SEQ_ECHAN(b);
note = SEQ_ENOTE(b);
parm = SEQ_EPARM(b);
DPRINTFN(2,("seq_do_chnvoice: cmd=%02x dev=%d chan=%d note=%d parm=%d\n",
cmd, dev, chan, note, parm));
voice = chan;
if (cmd == MIDI_NOTEON && parm == 0) {
cmd = MIDI_NOTEOFF;
parm = MIDI_HALF_VEL;
}
switch(cmd) {
case MIDI_NOTEON:
DPRINTFN(5, ("seq_do_chnvoice: noteon %p %d %d %d\n",
md, voice, note, parm));
error = midiseq_noteon(md, voice, note, parm);
break;
case MIDI_NOTEOFF:
error = midiseq_noteoff(md, voice, note, parm);
break;
case MIDI_KEY_PRESSURE:
error = midiseq_keypressure(md, voice, note, parm);
break;
default:
DPRINTFN(-1,("seq_do_chnvoice: unimpl command %02x\n", cmd));
error = EINVAL;
break;
}
return error;
}
int
seq_do_chncommon(sc, b)
struct sequencer_softc *sc;
seq_event_rec *b;
{
int cmd, dev, chan, p1, w14;
int error;
struct midi_dev *md;
union {
int16_t s;
u_int8_t b[2];
} u;
dev = SEQ_EDEV(b);
if (dev < 0 || dev >= sc->nmidi)
return ENXIO;
md = sc->devs[dev];
cmd = SEQ_ECMD(b);
chan = SEQ_ECHAN(b);
p1 = SEQ_EP1(b);
u.b[0] = b->arr[6];
u.b[1] = b->arr[7];
w14 = u.s;
DPRINTFN(2,("seq_do_chncommon: %02x\n", cmd));
error = 0;
switch(cmd) {
case MIDI_PGM_CHANGE:
error = midiseq_pgmchange(md, chan, p1);
break;
case MIDI_CTL_CHANGE:
if (chan > 15 || p1 > 127)
return 0; /* EINVAL */
error = midiseq_ctlchange(md, chan, p1, w14);
break;
case MIDI_PITCH_BEND:
error = midiseq_pitchbend(md, chan, w14);
break;
case MIDI_CHN_PRESSURE:
error = midiseq_chnpressure(md, chan, p1);
break;
default:
DPRINTFN(-1,("seq_do_chncommon: unimpl command %02x\n", cmd));
error = EINVAL;
break;
}
return (error);
}
int
seq_do_timing(sc, b)
struct sequencer_softc *sc;
seq_event_rec *b;
{
union {
int32_t i;
u_int8_t b[4];
} u;
u.b[0] = b->arr[4];
u.b[1] = b->arr[5];
u.b[2] = b->arr[6];
u.b[3] = b->arr[7];
return seq_timer(sc, SEQ_TCMD(b), u.i, b);
}
int
seq_do_local(sc, b)
struct sequencer_softc *sc;
seq_event_rec *b;
{
return (EINVAL);
}
int
seq_do_sysex(sc, b)
struct sequencer_softc *sc;
seq_event_rec *b;
{
int dev, i;
struct midi_dev *md;
u_int8_t c, *buf = &b->arr[2];
dev = SEQ_EDEV(b);
if (dev < 0 || dev >= sc->nmidi)
return (ENXIO);
DPRINTF(("seq_do_sysex: dev=%d\n", dev));
md = sc->devs[dev];
if (!sc->doingsysex) {
c = MIDI_SYSEX_START;
midiseq_out(md, &c, 1, 0);
sc->doingsysex = 1;
}
for (i = 0; i < 6 && buf[i] != 0xff; i++)
;
midiseq_out(md, buf, i, 0);
if (i < 6 || (i > 0 && buf[i-1] == MIDI_SYSEX_END))
sc->doingsysex = 0;
return (0);
}
int
seq_timer(sc, cmd, parm, b)
struct sequencer_softc *sc;
int cmd, parm;
seq_event_rec *b;
{
struct syn_timer *t = &sc->timer;
struct timeval when;
int ticks;
int error;
long long usec;
DPRINTFN(2,("seq_timer: %02x %d\n", cmd, parm));
error = 0;
switch(cmd) {
case TMR_WAIT_REL:
parm += t->last;
/* fall into */
case TMR_WAIT_ABS:
t->last = parm;
usec = (long long)parm * (long long)t->tick; /* convert to usec */
when.tv_sec = usec / 1000000;
when.tv_usec = usec % 1000000;
DPRINTFN(4, ("seq_timer: parm=%d, sleep when=%ld.%06ld", parm,
when.tv_sec, when.tv_usec));
ADDTIMEVAL(&when, &t->start); /* abstime for end */
ticks = hzto(&when);
DPRINTFN(4, (" when+start=%ld.%06ld, tick=%d\n",
when.tv_sec, when.tv_usec, ticks));
if (ticks > 0) {
#ifdef DIAGNOSTIC
if (ticks > 20 * hz) {
/* Waiting more than 20s */
printf("seq_timer: funny ticks=%d, usec=%lld, parm=%d, tick=%ld\n",
ticks, usec, parm, t->tick);
}
#endif
sc->timeout = 1;
callout_reset(&sc->sc_callout, ticks,
seq_timeout, sc);
}
#ifdef SEQUENCER_DEBUG
else if (tick < 0)
DPRINTF(("seq_timer: ticks = %d\n", ticks));
#endif
break;
case TMR_START:
microtime(&t->start);
t->running = 1;
break;
case TMR_STOP:
microtime(&t->stop);
t->running = 0;
break;
case TMR_CONTINUE:
microtime(&when);
SUBTIMEVAL(&when, &t->stop);
ADDTIMEVAL(&t->start, &when);
t->running = 1;
break;
case TMR_TEMPO:
/* parm is ticks per minute / timebase */
if (parm < 8)
parm = 8;
if (parm > 360)
parm = 360;
t->tempo = parm;
RECALC_TICK(t);
break;
case TMR_ECHO:
error = seq_input_event(sc, b);
break;
case TMR_RESET:
t->last = 0;
microtime(&t->start);
break;
default:
DPRINTF(("seq_timer: unknown %02x\n", cmd));
error = EINVAL;
break;
}
return (error);
}
int
seq_do_fullsize(sc, b, uio)
struct sequencer_softc *sc;
seq_event_rec *b;
struct uio *uio;
{
struct sysex_info sysex;
u_int dev;
#ifdef DIAGNOSTIC
if (sizeof(seq_event_rec) != SEQ_SYSEX_HDRSIZE) {
printf("seq_do_fullsize: sysex size ??\n");
return EINVAL;
}
#endif
memcpy(&sysex, b, sizeof sysex);
dev = sysex.device_no;
DPRINTFN(2, ("seq_do_fullsize: fmt=%04x, dev=%d, len=%d\n",
sysex.key, dev, sysex.len));
return (midiseq_loadpatch(sc->devs[dev], &sysex, uio));
}
/* Convert an old sequencer event to a new one. */
int
seq_to_new(ev, uio)
seq_event_rec *ev;
struct uio *uio;
{
int cmd, chan, note, parm;
u_int32_t delay;
int error;
cmd = SEQ_CMD(ev);
chan = ev->arr[1];
note = ev->arr[2];
parm = ev->arr[3];
DPRINTFN(3, ("seq_to_new: 0x%02x %d %d %d\n", cmd, chan, note, parm));
if (cmd >= 0x80) {
/* Fill the event record */
if (uio->uio_resid >= sizeof *ev - SEQOLD_CMDSIZE) {
error = uiomove(&ev->arr[SEQOLD_CMDSIZE],
sizeof *ev - SEQOLD_CMDSIZE, uio);
if (error)
return error;
} else
return EINVAL;
}
switch(cmd) {
case SEQOLD_NOTEOFF:
note = 255;
SEQ_ECMD(ev) = MIDI_NOTEOFF;
goto onoff;
case SEQOLD_NOTEON:
SEQ_ECMD(ev) = MIDI_NOTEON;
onoff:
SEQ_CMD(ev) = SEQ_CHN_VOICE;
SEQ_EDEV(ev) = 0;
SEQ_ECHAN(ev) = chan;
SEQ_ENOTE(ev) = note;
SEQ_EPARM(ev) = parm;
break;
case SEQOLD_WAIT:
delay = *(u_int32_t *)ev->arr >> 8;
SEQ_CMD(ev) = SEQ_TIMING;
SEQ_TCMD(ev) = TMR_WAIT_REL;
*(u_int32_t *)&ev->arr[4] = delay;
break;
case SEQOLD_SYNCTIMER:
SEQ_CMD(ev) = SEQ_TIMING;
SEQ_TCMD(ev) = TMR_RESET;
break;
case SEQOLD_PGMCHANGE:
SEQ_ECMD(ev) = MIDI_PGM_CHANGE;
SEQ_CMD(ev) = SEQ_CHN_COMMON;
SEQ_EDEV(ev) = 0;
SEQ_ECHAN(ev) = chan;
SEQ_EP1(ev) = note;
break;
case SEQOLD_MIDIPUTC:
break; /* interpret in normal mode */
case SEQOLD_ECHO:
case SEQOLD_PRIVATE:
case SEQOLD_EXTENDED:
default:
DPRINTF(("seq_to_new: not impl 0x%02x\n", cmd));
return EINVAL;
/* In case new events show up */
case SEQ_TIMING:
case SEQ_CHN_VOICE:
case SEQ_CHN_COMMON:
case SEQ_FULLSIZE:
break;
}
return 0;
}
/**********************************************/
void
midiseq_in(md, msg, len)
struct midi_dev *md;
u_char *msg;
int len;
{
int unit = md->unit;
seq_event_rec ev;
int status, chan;
DPRINTFN(2, ("midiseq_in: %p %02x %02x %02x\n",
md, msg[0], msg[1], msg[2]));
status = MIDI_GET_STATUS(msg[0]);
chan = MIDI_GET_CHAN(msg[0]);
switch (status) {
case MIDI_NOTEON:
if (msg[2] == 0) {
status = MIDI_NOTEOFF;
msg[2] = MIDI_HALF_VEL;
}
/* fall into */
case MIDI_NOTEOFF:
case MIDI_KEY_PRESSURE:
SEQ_MK_CHN_VOICE(&ev, unit, status, chan, msg[1], msg[2]);
break;
case MIDI_CTL_CHANGE:
SEQ_MK_CHN_COMMON(&ev, unit, status, chan, msg[1], 0, msg[2]);
break;
case MIDI_PGM_CHANGE:
case MIDI_CHN_PRESSURE:
SEQ_MK_CHN_COMMON(&ev, unit, status, chan, msg[1], 0, 0);
break;
case MIDI_PITCH_BEND:
SEQ_MK_CHN_COMMON(&ev, unit, status, chan, 0, 0,
(msg[1] & 0x7f) | ((msg[2] & 0x7f) << 7));
break;
default:
return;
}
seq_event_intr(md->seq, &ev);
}
struct midi_dev *
midiseq_open(unit, flags)
int unit;
int flags;
{
extern struct cfdriver midi_cd;
int error;
struct midi_dev *md;
struct midi_softc *sc;
struct midi_info mi;
DPRINTFN(2, ("midiseq_open: %d %d\n", unit, flags));
error = midiopen(makedev(0, unit), flags, 0, 0);
if (error)
return (0);
sc = midi_cd.cd_devs[unit];
sc->seqopen = 1;
md = malloc(sizeof *md, M_DEVBUF, M_WAITOK);
sc->seq_md = md;
memset(md, 0, sizeof *md);
md->msc = sc;
midi_getinfo(makedev(0, unit), &mi);
md->unit = unit;
md->name = mi.name;
md->subtype = 0;
md->nr_voices = 128; /* XXX */
md->instr_bank_size = 128; /* XXX */
if (mi.props & MIDI_PROP_CAN_INPUT)
md->capabilities |= SYNTH_CAP_INPUT;
return (md);
}
void
midiseq_close(md)
struct midi_dev *md;
{
DPRINTFN(2, ("midiseq_close: %d\n", md->unit));
midiclose(makedev(0, md->unit), 0, 0, 0);
free(md, M_DEVBUF);
}
void
midiseq_reset(md)
struct midi_dev *md;
{
/* XXX send GM reset? */
DPRINTFN(3, ("midiseq_reset: %d\n", md->unit));
}
int
midiseq_out(md, buf, cc, chk)
struct midi_dev *md;
u_char *buf;
u_int cc;
int chk;
{
DPRINTFN(5, ("midiseq_out: m=%p, unit=%d, buf[0]=0x%02x, cc=%d\n",
md->msc, md->unit, buf[0], cc));
/* The MIDI "status" byte does not have to be repeated. */
if (chk && md->last_cmd == buf[0])
buf++, cc--;
else
md->last_cmd = buf[0];
return midi_writebytes(md->unit, buf, cc);
}
int
midiseq_noteon(md, chan, note, vel)
struct midi_dev *md;
int chan, note, vel;
{
u_char buf[3];
DPRINTFN(6, ("midiseq_noteon 0x%02x %d %d\n",
MIDI_NOTEON | chan, note, vel));
if (chan < 0 || chan > 15 ||
note < 0 || note > 127)
return EINVAL;
if (vel < 0) vel = 0;
if (vel > 127) vel = 127;
buf[0] = MIDI_NOTEON | chan;
buf[1] = note;
buf[2] = vel;
return midiseq_out(md, buf, 3, 1);
}
int
midiseq_noteoff(md, chan, note, vel)
struct midi_dev *md;
int chan, note, vel;
{
u_char buf[3];
if (chan < 0 || chan > 15 ||
note < 0 || note > 127)
return EINVAL;
if (vel < 0) vel = 0;
if (vel > 127) vel = 127;
buf[0] = MIDI_NOTEOFF | chan;
buf[1] = note;
buf[2] = vel;
return midiseq_out(md, buf, 3, 1);
}
int
midiseq_keypressure(md, chan, note, vel)
struct midi_dev *md;
int chan, note, vel;
{
u_char buf[3];
if (chan < 0 || chan > 15 ||
note < 0 || note > 127)
return EINVAL;
if (vel < 0) vel = 0;
if (vel > 127) vel = 127;
buf[0] = MIDI_KEY_PRESSURE | chan;
buf[1] = note;
buf[2] = vel;
return midiseq_out(md, buf, 3, 1);
}
int
midiseq_pgmchange(md, chan, parm)
struct midi_dev *md;
int chan, parm;
{
u_char buf[2];
if (chan < 0 || chan > 15 ||
parm < 0 || parm > 127)
return EINVAL;
buf[0] = MIDI_PGM_CHANGE | chan;
buf[1] = parm;
return midiseq_out(md, buf, 2, 1);
}
int
midiseq_chnpressure(md, chan, parm)
struct midi_dev *md;
int chan, parm;
{
u_char buf[2];
if (chan < 0 || chan > 15 ||
parm < 0 || parm > 127)
return EINVAL;
buf[0] = MIDI_CHN_PRESSURE | chan;
buf[1] = parm;
return midiseq_out(md, buf, 2, 1);
}
int
midiseq_ctlchange(md, chan, parm, w14)
struct midi_dev *md;
int chan, parm, w14;
{
u_char buf[3];
if (chan < 0 || chan > 15 ||
parm < 0 || parm > 127)
return EINVAL;
buf[0] = MIDI_CTL_CHANGE | chan;
buf[1] = parm;
buf[2] = w14 & 0x7f;
return midiseq_out(md, buf, 3, 1);
}
int
midiseq_pitchbend(md, chan, parm)
struct midi_dev *md;
int chan, parm;
{
u_char buf[3];
if (chan < 0 || chan > 15)
return EINVAL;
buf[0] = MIDI_PITCH_BEND | chan;
buf[1] = parm & 0x7f;
buf[2] = (parm >> 7) & 0x7f;
return midiseq_out(md, buf, 3, 1);
}
int
midiseq_loadpatch(md, sysex, uio)
struct midi_dev *md;
struct sysex_info *sysex;
struct uio *uio;
{
u_char c, buf[128];
int i, cc, error;
if (sysex->key != SEQ_SYSEX_PATCH) {
DPRINTFN(-1,("midiseq_loadpatch: bad patch key 0x%04x\n",
sysex->key));
return (EINVAL);
}
if (uio->uio_resid < sysex->len)
/* adjust length, should be an error */
sysex->len = uio->uio_resid;
DPRINTFN(2, ("midiseq_loadpatch: len=%d\n", sysex->len));
if (sysex->len == 0)
return EINVAL;
error = uiomove(&c, 1, uio);
if (error)
return error;
if (c != MIDI_SYSEX_START) /* must start like this */
return EINVAL;
error = midiseq_out(md, &c, 1, 0);
if (error)
return error;
--sysex->len;
while (sysex->len > 0) {
cc = sysex->len;
if (cc > sizeof buf)
cc = sizeof buf;
error = uiomove(buf, cc, uio);
if (error)
break;
for(i = 0; i < cc && !MIDI_IS_STATUS(buf[i]); i++)
;
error = midiseq_out(md, buf, i, 0);
if (error)
break;
sysex->len -= i;
if (i != cc)
break;
}
/* Any leftover data in uio is rubbish;
* the SYSEX should be one write ending in SYSEX_END.
*/
uio->uio_resid = 0;
c = MIDI_SYSEX_END;
return midiseq_out(md, &c, 1, 0);
}
int
midiseq_putc(md, data)
struct midi_dev *md;
int data;
{
u_char c = data;
DPRINTFN(4,("midiseq_putc: 0x%02x\n", data));
return midiseq_out(md, &c, 1, 0);
}
#include "midi.h"
#if NMIDI == 0
/*
* If someone has a sequencer, but no midi devices there will
* be unresolved references, so we provide little stubs.
*/
int
midi_unit_count()
{
return (0);
}
int
midiopen(dev, flags, ifmt, p)
dev_t dev;
int flags, ifmt;
struct proc *p;
{
return (ENXIO);
}
struct cfdriver midi_cd;
void
midi_getinfo(dev, mi)
dev_t dev;
struct midi_info *mi;
{
}
int
midiclose(dev, flags, ifmt, p)
dev_t dev;
int flags, ifmt;
struct proc *p;
{
return (ENXIO);
}
int
midi_writebytes(unit, buf, cc)
int unit;
u_char *buf;
int cc;
{
return (ENXIO);
}
#endif /* NMIDI == 0 */
#endif /* NSEQUENCER > 0 */