1494 lines
32 KiB
C
1494 lines
32 KiB
C
/* $NetBSD: sequencer.c,v 1.25 2003/12/04 13:57:30 keihan Exp $ */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (augustss@NetBSD.org).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: sequencer.c,v 1.25 2003/12/04 13:57:30 keihan Exp $");
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#include "sequencer.h"
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/fcntl.h>
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#include <sys/vnode.h>
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#include <sys/select.h>
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#include <sys/poll.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <sys/syslog.h>
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#include <sys/kernel.h>
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#include <sys/signalvar.h>
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#include <sys/conf.h>
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#include <sys/audioio.h>
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#include <sys/midiio.h>
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#include <sys/device.h>
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#include <dev/midi_if.h>
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#include <dev/midivar.h>
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#include <dev/sequencervar.h>
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#define ADDTIMEVAL(a, b) ( \
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(a)->tv_sec += (b)->tv_sec, \
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(a)->tv_usec += (b)->tv_usec, \
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(a)->tv_usec > 1000000 ? ((a)->tv_sec++, (a)->tv_usec -= 1000000) : 0\
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)
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#define SUBTIMEVAL(a, b) ( \
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(a)->tv_sec -= (b)->tv_sec, \
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(a)->tv_usec -= (b)->tv_usec, \
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(a)->tv_usec < 0 ? ((a)->tv_sec--, (a)->tv_usec += 1000000) : 0\
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)
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#ifdef AUDIO_DEBUG
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#define DPRINTF(x) if (sequencerdebug) printf x
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#define DPRINTFN(n,x) if (sequencerdebug >= (n)) printf x
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int sequencerdebug = 0;
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif
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#define SEQ_CMD(b) ((b)->arr[0])
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#define SEQ_EDEV(b) ((b)->arr[1])
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#define SEQ_ECMD(b) ((b)->arr[2])
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#define SEQ_ECHAN(b) ((b)->arr[3])
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#define SEQ_ENOTE(b) ((b)->arr[4])
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#define SEQ_EPARM(b) ((b)->arr[5])
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#define SEQ_EP1(b) ((b)->arr[4])
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#define SEQ_EP2(b) ((b)->arr[5])
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#define SEQ_XCMD(b) ((b)->arr[1])
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#define SEQ_XDEV(b) ((b)->arr[2])
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#define SEQ_XCHAN(b) ((b)->arr[3])
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#define SEQ_XNOTE(b) ((b)->arr[4])
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#define SEQ_XVEL(b) ((b)->arr[5])
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#define SEQ_TCMD(b) ((b)->arr[1])
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#define SEQ_TPARM(b) ((b)->arr[4])
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#define SEQ_NOTE_MAX 128
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#define SEQ_NOTE_XXX 255
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#define SEQ_VEL_OFF 0
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#define RECALC_TICK(t) ((t)->tick = 60 * 1000000L / ((t)->tempo * (t)->timebase))
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struct sequencer_softc seqdevs[NSEQUENCER];
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void sequencerattach __P((int));
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void seq_reset __P((struct sequencer_softc *));
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int seq_do_command __P((struct sequencer_softc *, seq_event_rec *));
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int seq_do_extcommand __P((struct sequencer_softc *, seq_event_rec *));
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int seq_do_chnvoice __P((struct sequencer_softc *, seq_event_rec *));
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int seq_do_chncommon __P((struct sequencer_softc *, seq_event_rec *));
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int seq_do_timing __P((struct sequencer_softc *, seq_event_rec *));
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int seq_do_local __P((struct sequencer_softc *, seq_event_rec *));
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int seq_do_sysex __P((struct sequencer_softc *, seq_event_rec *));
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int seq_do_fullsize __P((struct sequencer_softc *, seq_event_rec *,
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struct uio *));
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int seq_timer __P((struct sequencer_softc *, int, int, seq_event_rec *));
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static int seq_input_event __P((struct sequencer_softc *, seq_event_rec *));
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int seq_drain __P((struct sequencer_softc *));
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void seq_startoutput __P((struct sequencer_softc *));
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void seq_timeout __P((void *));
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int seq_to_new __P((seq_event_rec *, struct uio *));
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static int seq_sleep_timo(int *, char *, int);
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static int seq_sleep(int *, char *);
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static void seq_wakeup(int *);
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struct midi_softc;
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int midiseq_out __P((struct midi_dev *, u_char *, u_int, int));
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struct midi_dev *midiseq_open __P((int, int));
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void midiseq_close __P((struct midi_dev *));
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void midiseq_reset __P((struct midi_dev *));
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int midiseq_noteon __P((struct midi_dev *, int, int, int));
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int midiseq_noteoff __P((struct midi_dev *, int, int, int));
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int midiseq_keypressure __P((struct midi_dev *, int, int, int));
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int midiseq_pgmchange __P((struct midi_dev *, int, int));
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int midiseq_chnpressure __P((struct midi_dev *, int, int));
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int midiseq_ctlchange __P((struct midi_dev *, int, int, int));
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int midiseq_pitchbend __P((struct midi_dev *, int, int));
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int midiseq_loadpatch __P((struct midi_dev *, struct sysex_info *,
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struct uio *));
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int midiseq_putc __P((struct midi_dev *, int));
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void midiseq_in __P((struct midi_dev *, u_char *, int));
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dev_type_open(sequenceropen);
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dev_type_close(sequencerclose);
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dev_type_read(sequencerread);
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dev_type_write(sequencerwrite);
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dev_type_ioctl(sequencerioctl);
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dev_type_poll(sequencerpoll);
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dev_type_kqfilter(sequencerkqfilter);
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const struct cdevsw sequencer_cdevsw = {
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sequenceropen, sequencerclose, sequencerread, sequencerwrite,
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sequencerioctl, nostop, notty, sequencerpoll, nommap,
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sequencerkqfilter,
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};
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void
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sequencerattach(n)
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int n;
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{
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for (n = 0; n < NSEQUENCER; n++)
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callout_init(&seqdevs[n].sc_callout);
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}
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int
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sequenceropen(dev, flags, ifmt, p)
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dev_t dev;
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int flags, ifmt;
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struct proc *p;
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{
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int unit = SEQUENCERUNIT(dev);
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struct sequencer_softc *sc;
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struct midi_dev *md;
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int nmidi;
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DPRINTF(("sequenceropen\n"));
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if (unit >= NSEQUENCER)
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return (ENXIO);
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sc = &seqdevs[unit];
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if (sc->isopen)
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return EBUSY;
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if (SEQ_IS_OLD(unit))
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sc->mode = SEQ_OLD;
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else
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sc->mode = SEQ_NEW;
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sc->isopen++;
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sc->flags = flags & (FREAD|FWRITE);
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sc->rchan = 0;
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sc->wchan = 0;
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sc->pbus = 0;
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sc->async = 0;
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sc->input_stamp = ~0;
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sc->nmidi = 0;
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nmidi = midi_unit_count();
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sc->devs = malloc(nmidi * sizeof(struct midi_dev *),
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M_DEVBUF, M_WAITOK);
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for (unit = 0; unit < nmidi; unit++) {
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md = midiseq_open(unit, flags);
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if (md) {
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sc->devs[sc->nmidi++] = md;
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md->seq = sc;
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}
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}
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sc->timer.timebase = 100;
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sc->timer.tempo = 60;
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sc->doingsysex = 0;
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RECALC_TICK(&sc->timer);
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sc->timer.last = 0;
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microtime(&sc->timer.start);
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SEQ_QINIT(&sc->inq);
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SEQ_QINIT(&sc->outq);
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sc->lowat = SEQ_MAXQ / 2;
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seq_reset(sc);
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DPRINTF(("sequenceropen: mode=%d, nmidi=%d\n", sc->mode, sc->nmidi));
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return 0;
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}
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static int
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seq_sleep_timo(chan, label, timo)
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int *chan;
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char *label;
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int timo;
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{
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int st;
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if (!label)
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label = "seq";
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DPRINTFN(5, ("seq_sleep_timo: %p %s %d\n", chan, label, timo));
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*chan = 1;
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st = tsleep(chan, PWAIT | PCATCH, label, timo);
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*chan = 0;
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#ifdef MIDI_DEBUG
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if (st != 0)
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printf("seq_sleep: %d\n", st);
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#endif
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return st;
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}
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static int
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seq_sleep(chan, label)
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int *chan;
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char *label;
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{
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return seq_sleep_timo(chan, label, 0);
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}
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static void
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seq_wakeup(chan)
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int *chan;
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{
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if (*chan) {
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DPRINTFN(5, ("seq_wakeup: %p\n", chan));
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wakeup(chan);
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*chan = 0;
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}
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}
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int
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seq_drain(sc)
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struct sequencer_softc *sc;
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{
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int error;
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DPRINTFN(3, ("seq_drain: %p, len=%d\n", sc, SEQ_QLEN(&sc->outq)));
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seq_startoutput(sc);
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error = 0;
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while(!SEQ_QEMPTY(&sc->outq) && !error)
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error = seq_sleep_timo(&sc->wchan, "seq_dr", 60*hz);
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return (error);
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}
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void
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seq_timeout(addr)
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void *addr;
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{
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struct sequencer_softc *sc = addr;
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DPRINTFN(4, ("seq_timeout: %p\n", sc));
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sc->timeout = 0;
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seq_startoutput(sc);
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if (SEQ_QLEN(&sc->outq) < sc->lowat) {
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seq_wakeup(&sc->wchan);
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selnotify(&sc->wsel, 0);
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if (sc->async)
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psignal(sc->async, SIGIO);
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}
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}
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void
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seq_startoutput(sc)
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struct sequencer_softc *sc;
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{
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struct sequencer_queue *q = &sc->outq;
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seq_event_rec cmd;
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if (sc->timeout)
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return;
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DPRINTFN(4, ("seq_startoutput: %p, len=%d\n", sc, SEQ_QLEN(q)));
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while(!SEQ_QEMPTY(q) && !sc->timeout) {
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SEQ_QGET(q, cmd);
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seq_do_command(sc, &cmd);
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}
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}
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int
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sequencerclose(dev, flags, ifmt, p)
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dev_t dev;
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int flags, ifmt;
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struct proc *p;
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{
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struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
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int n, s;
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DPRINTF(("sequencerclose: %p\n", sc));
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seq_drain(sc);
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s = splaudio();
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if (sc->timeout) {
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callout_stop(&sc->sc_callout);
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sc->timeout = 0;
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}
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splx(s);
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for (n = 0; n < sc->nmidi; n++)
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midiseq_close(sc->devs[n]);
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free(sc->devs, M_DEVBUF);
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sc->isopen = 0;
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return (0);
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}
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static int
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seq_input_event(sc, cmd)
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struct sequencer_softc *sc;
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seq_event_rec *cmd;
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{
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struct sequencer_queue *q = &sc->inq;
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DPRINTFN(2, ("seq_input_event: %02x %02x %02x %02x %02x %02x %02x %02x\n",
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cmd->arr[0], cmd->arr[1], cmd->arr[2], cmd->arr[3],
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cmd->arr[4], cmd->arr[5], cmd->arr[6], cmd->arr[7]));
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if (SEQ_QFULL(q))
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return (ENOMEM);
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SEQ_QPUT(q, *cmd);
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seq_wakeup(&sc->rchan);
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selnotify(&sc->rsel, 0);
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if (sc->async)
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psignal(sc->async, SIGIO);
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return 0;
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}
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void
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seq_event_intr(addr, iev)
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void *addr;
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seq_event_rec *iev;
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{
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struct sequencer_softc *sc = addr;
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union {
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u_int32_t l;
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u_int8_t b[4];
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} u;
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u_long t;
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struct timeval now;
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seq_event_rec ev;
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microtime(&now);
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SUBTIMEVAL(&now, &sc->timer.start);
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t = now.tv_sec * 1000000 + now.tv_usec;
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t /= sc->timer.tick;
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if (t != sc->input_stamp) {
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ev.arr[0] = SEQ_TIMING;
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ev.arr[1] = TMR_WAIT_ABS;
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ev.arr[2] = 0;
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ev.arr[3] = 0;
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u.l = t;
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ev.arr[4] = u.b[0];
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ev.arr[5] = u.b[1];
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ev.arr[6] = u.b[2];
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ev.arr[7] = u.b[3];
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seq_input_event(sc, &ev);
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sc->input_stamp = t;
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}
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seq_input_event(sc, iev);
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}
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int
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sequencerread(dev, uio, ioflag)
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dev_t dev;
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struct uio *uio;
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int ioflag;
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{
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struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
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struct sequencer_queue *q = &sc->inq;
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seq_event_rec ev;
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int error, s;
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DPRINTFN(20, ("sequencerread: %p, count=%d, ioflag=%x\n",
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sc, (int) uio->uio_resid, ioflag));
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if (sc->mode == SEQ_OLD) {
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DPRINTFN(-1,("sequencerread: old read\n"));
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return (EINVAL); /* XXX unimplemented */
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}
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error = 0;
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while (SEQ_QEMPTY(q)) {
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if (ioflag & IO_NDELAY)
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return EWOULDBLOCK;
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else {
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error = seq_sleep(&sc->rchan, "seq rd");
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if (error)
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return error;
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}
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}
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s = splaudio();
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while (uio->uio_resid >= sizeof ev && !error && !SEQ_QEMPTY(q)) {
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SEQ_QGET(q, ev);
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error = uiomove(&ev, sizeof ev, uio);
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}
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splx(s);
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return error;
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}
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int
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sequencerwrite(dev, uio, ioflag)
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dev_t dev;
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struct uio *uio;
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int ioflag;
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{
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struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
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struct sequencer_queue *q = &sc->outq;
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int error;
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seq_event_rec cmdbuf;
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int size;
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DPRINTFN(2, ("sequencerwrite: %p, count=%d\n", sc, (int) uio->uio_resid));
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error = 0;
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size = sc->mode == SEQ_NEW ? sizeof cmdbuf : SEQOLD_CMDSIZE;
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while (uio->uio_resid >= size) {
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error = uiomove(&cmdbuf, size, uio);
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if (error)
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break;
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if (sc->mode == SEQ_OLD)
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if (seq_to_new(&cmdbuf, uio))
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continue;
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if (SEQ_CMD(&cmdbuf) == SEQ_FULLSIZE) {
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/* We do it like OSS does, asynchronously */
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error = seq_do_fullsize(sc, &cmdbuf, uio);
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if (error)
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break;
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continue;
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}
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while (SEQ_QFULL(q)) {
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seq_startoutput(sc);
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if (SEQ_QFULL(q)) {
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if (ioflag & IO_NDELAY)
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return EWOULDBLOCK;
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error = seq_sleep(&sc->wchan, "seq_wr");
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if (error)
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return error;
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}
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}
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SEQ_QPUT(q, cmdbuf);
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}
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seq_startoutput(sc);
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#ifdef SEQUENCER_DEBUG
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if (error)
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DPRINTFN(2, ("sequencerwrite: error=%d\n", error));
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#endif
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return error;
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}
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|
|
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;
|
|
}
|
|
|
|
static void
|
|
filt_sequencerrdetach(struct knote *kn)
|
|
{
|
|
struct sequencer_softc *sc = kn->kn_hook;
|
|
int s;
|
|
|
|
s = splaudio();
|
|
SLIST_REMOVE(&sc->rsel.sel_klist, kn, knote, kn_selnext);
|
|
splx(s);
|
|
}
|
|
|
|
static int
|
|
filt_sequencerread(struct knote *kn, long hint)
|
|
{
|
|
struct sequencer_softc *sc = kn->kn_hook;
|
|
|
|
/* XXXLUKEM (thorpej): make sure this is correct */
|
|
|
|
if (SEQ_QEMPTY(&sc->inq))
|
|
return (0);
|
|
kn->kn_data = sizeof(seq_event_rec);
|
|
return (1);
|
|
}
|
|
|
|
static const struct filterops sequencerread_filtops =
|
|
{ 1, NULL, filt_sequencerrdetach, filt_sequencerread };
|
|
|
|
static void
|
|
filt_sequencerwdetach(struct knote *kn)
|
|
{
|
|
struct sequencer_softc *sc = kn->kn_hook;
|
|
int s;
|
|
|
|
s = splaudio();
|
|
SLIST_REMOVE(&sc->wsel.sel_klist, kn, knote, kn_selnext);
|
|
splx(s);
|
|
}
|
|
|
|
static int
|
|
filt_sequencerwrite(struct knote *kn, long hint)
|
|
{
|
|
struct sequencer_softc *sc = kn->kn_hook;
|
|
|
|
/* XXXLUKEM (thorpej): make sure this is correct */
|
|
|
|
if (SEQ_QLEN(&sc->outq) >= sc->lowat)
|
|
return (0);
|
|
kn->kn_data = sizeof(seq_event_rec);
|
|
return (1);
|
|
}
|
|
|
|
static const struct filterops sequencerwrite_filtops =
|
|
{ 1, NULL, filt_sequencerwdetach, filt_sequencerwrite };
|
|
|
|
int
|
|
sequencerkqfilter(dev_t dev, struct knote *kn)
|
|
{
|
|
struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)];
|
|
struct klist *klist;
|
|
int s;
|
|
|
|
switch (kn->kn_filter) {
|
|
case EVFILT_READ:
|
|
klist = &sc->rsel.sel_klist;
|
|
kn->kn_fop = &sequencerread_filtops;
|
|
break;
|
|
|
|
case EVFILT_WRITE:
|
|
klist = &sc->wsel.sel_klist;
|
|
kn->kn_fop = &sequencerwrite_filtops;
|
|
break;
|
|
|
|
default:
|
|
return (1);
|
|
}
|
|
|
|
kn->kn_hook = sc;
|
|
|
|
s = splaudio();
|
|
SLIST_INSERT_HEAD(klist, kn, kn_selnext);
|
|
splx(s);
|
|
|
|
return (0);
|
|
}
|
|
|
|
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;
|
|
extern const struct cdevsw midi_cdevsw;
|
|
int error;
|
|
struct midi_dev *md;
|
|
struct midi_softc *sc;
|
|
struct midi_info mi;
|
|
|
|
DPRINTFN(2, ("midiseq_open: %d %d\n", unit, flags));
|
|
error = (*midi_cdevsw.d_open)(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|M_ZERO);
|
|
sc->seq_md = 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;
|
|
{
|
|
extern const struct cdevsw midi_cdevsw;
|
|
|
|
DPRINTFN(2, ("midiseq_close: %d\n", md->unit));
|
|
(*midi_cdevsw.d_close)(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
|
|
dev_type_open(midiopen);
|
|
dev_type_close(midiclose);
|
|
|
|
const struct cdevsw midi_cdevsw = {
|
|
midiopen, midiclose, noread, nowrite, noioctl,
|
|
nostop, notty, nopoll, nommap,
|
|
};
|
|
|
|
/*
|
|
* 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 */
|