2291 lines
53 KiB
C
2291 lines
53 KiB
C
/*
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* The sequencer personality manager.
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*
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* Copyright by Hannu Savolainen 1993
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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 are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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/*
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* This is the newmidi sequencer driver. This driver handles io against
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* /dev/sequencer, midi input and output event queues and event transmittion
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* to and from a midi device or synthesizer.
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*/
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#include <dev/sound/midi/midi.h>
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#include <dev/sound/midi/sequencer.h>
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#ifndef DDB
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#define DDB(x)
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#endif /* DDB */
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#define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM
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synthesizer and MIDI output) */
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#define SND_DEV_MIDIN 2 /* Raw midi access */
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#define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */
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#define MIDIDEV_MODE 0x2000
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/* Length of a sequencer event. */
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#define EV_SZ 8
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#define IEV_SZ 8
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/* Return value from seq_playevent and the helpers. */
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enum {
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MORE,
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TIMERARMED,
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QUEUEFULL
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};
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/* Lookup modes */
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#define LOOKUP_EXIST (0)
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#define LOOKUP_OPEN (1)
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#define LOOKUP_CLOSE (2)
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/*
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* These functions goes into seq_op_desc to get called
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* from sound.c.
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*/
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static midi_intr_t seq_intr;
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static seq_callback_t seq_callback;
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/* These are the entries to the sequencer driver. */
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static d_open_t seq_open;
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static d_close_t seq_close;
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static d_ioctl_t seq_ioctl;
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static d_read_t seq_read;
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static d_write_t seq_write;
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static d_poll_t seq_poll;
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/*
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* This is the device descriptor for the midi sequencer.
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*/
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seqdev_info seq_op_desc = {
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"midi sequencer",
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0,
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seq_open,
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seq_close,
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seq_read,
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seq_write,
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seq_ioctl,
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seq_poll,
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seq_callback,
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SEQ_BUFFSIZE, /* Queue Length */
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0, /* XXX This is not an *audio* device! */
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};
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/* Here is the parameter structure per a device. */
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struct seq_softc {
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seqdev_info *devinfo; /* sequencer device information */
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/* Flags (protected by flag_mtx of mididev_info) */
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int fflags; /* Access mode */
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int queueout_pending; /* Pending for the output queue */
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/* Timer counters */
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u_long seq_time; /* The beggining time of this sequence */
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u_long prev_event_time; /* The time of the previous event output */
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u_long prev_input_time; /* The time of the previous event input */
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u_long prev_wakeup_time; /* The time of the previous wakeup */
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struct callout timeout_ch; /* Timer callout handler */
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long timer_current; /* Current timer value */
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int timer_running; /* State of timer */
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int pending_timer; /* Timer change operation */
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int pre_event_timeout; /* Time to wait event input */
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/* Device list */
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TAILQ_HEAD(,_mididev_info) midi_open; /* Midi devices opened by this sequencer. */
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/*
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* XXX not sure to which category these belong.
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* (and some might be no-op)
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*/
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int output_threshould; /* Sequence output threshould */
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snd_sync_parm sync_parm; /* AIOSYNC parameter set */
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struct proc *sync_proc; /* AIOSYNCing process */
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};
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typedef struct seq_softc *sc_p;
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static d_open_t seqopen;
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static d_close_t seqclose;
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static d_ioctl_t seqioctl;
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static d_read_t seqread;
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static d_write_t seqwrite;
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static d_poll_t seqpoll;
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#define CDEV_MAJOR SEQ_CDEV_MAJOR
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static struct cdevsw seq_cdevsw = {
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/* open */ seqopen,
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/* close */ seqclose,
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/* read */ seqread,
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/* write */ seqwrite,
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/* ioctl */ seqioctl,
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/* poll */ seqpoll,
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/* mmap */ nommap,
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/* strategy */ nostrategy,
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/* name */ "midi", /* XXX */
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/* maj */ CDEV_MAJOR,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ 0,
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/* bmaj */ -1
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};
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static TAILQ_HEAD(,_seqdev_info) seq_info;
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/* Mutex to protect seq_info and nseq. */
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static struct mtx seqinfo_mtx;
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static u_long nseq; /* total number of sequencers */
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static dev_t seq_alias = NODEV;
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/* The followings are the local function. */
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static int seq_init(void);
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static int seq_initunit(int unit);
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static int seq_queue(sc_p scp, u_char *note);
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static void seq_startplay(sc_p scp);
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static int seq_playevent(sc_p scp, u_char *event);
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static u_long seq_gettime(void);
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static int seq_requesttimer(sc_p scp, int delay);
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static void seq_stoptimer(sc_p scp);
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static void seq_midiinput(sc_p scp, mididev_info *md);
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static int seq_copytoinput(sc_p scp, u_char *event, int len);
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static int seq_extended(sc_p scp, u_char *event);
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static int seq_chnvoice(sc_p scp, u_char *event);
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static int seq_findvoice(mididev_info *md, int chn, int note) __unused;
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static int seq_allocvoice(sc_p scp, mididev_info *md, int chn, int note) __unused;
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static int seq_chncommon(sc_p scp, u_char *event);
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static int seq_timing(sc_p scp, u_char *event);
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static int seq_local(sc_p scp, u_char *event);
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static int seq_sysex(sc_p scp, u_char *event);
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static void seq_timer(void *arg);
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static int seq_reset(sc_p scp);
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static int seq_openmidi(sc_p scp, mididev_info *md, int flags, int mode, struct proc *p);
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static int seq_closemidi(sc_p scp, mididev_info *md, int flags, int mode, struct proc *p);
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static void seq_panic(sc_p scp);
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static int seq_sync(sc_p scp);
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static seqdev_info *get_seqdev_info(dev_t i_dev, int *unit);
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static seqdev_info *get_seqdev_info_unit(int unit);
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static seqdev_info *create_seqdev_info_unit(int unit, seqdev_info *seq);
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static int lookup_mididev(sc_p scp, int unit, int mode, mididev_info **mdp);
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static void seq_clone(void *arg, char *name, int namelen, dev_t *dev);
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/*
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* Here are the main functions to interact to the user process.
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* These are called from snd* functions in sys/i386/isa/snd/sound.c.
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*/
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static int
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seq_init(void)
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{
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DEB(printf("seq: initing.\n"));
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mtx_init(&seqinfo_mtx, "seqinf", MTX_DEF);
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TAILQ_INIT(&seq_info);
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seq_initunit(0);
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EVENTHANDLER_REGISTER(dev_clone, seq_clone, 0, 1000);
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DEB(printf("seq: inited.\n"));
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return (0);
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}
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static int
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seq_initunit(int unit)
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{
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sc_p scp;
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seqdev_info *devinfo;
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dev_t seqdev;
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/* Allocate the softc. */
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scp = malloc(sizeof(*scp), M_DEVBUF, M_WAITOK | M_ZERO);
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if (scp == (sc_p)NULL) {
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printf("seq%d: softc allocation failed.\n", unit);
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return (1);
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}
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/* Fill the softc and the seq_info for this unit. */
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scp->seq_time = seq_gettime();
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scp->prev_event_time = 0;
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scp->prev_input_time = 0;
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scp->prev_wakeup_time = scp->seq_time;
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#if defined(MIDI_OUTOFGIANT)
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callout_init(&scp->timeout_ch, 1);
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#else
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callout_init(&scp->timeout_ch, 0);
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#endif /* MIDI_OUTOFGIANT */
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scp->timer_current = 0;
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scp->timer_running = 0;
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scp->queueout_pending = 0;
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TAILQ_INIT(&scp->midi_open);
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scp->devinfo = devinfo = create_seqdev_info_unit(unit, &seq_op_desc);
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devinfo->midi_dbuf_in.unit_size = devinfo->midi_dbuf_out.unit_size = EV_SZ;
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devinfo->softc = scp;
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devinfo->flags = 0;
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mtx_unlock(&devinfo->flagqueue_mtx);
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seqdev = make_dev(&seq_cdevsw, MIDIMKMINOR(unit, SND_DEV_SEQ),
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UID_ROOT, GID_WHEEL, 0666, "sequencer%d", unit);
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mtx_lock(&seqinfo_mtx);
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if (seq_alias != NODEV) {
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destroy_dev(seq_alias);
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seq_alias = NODEV;
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}
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seq_alias = make_dev_alias(seqdev, "sequencer");
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mtx_unlock(&seqinfo_mtx);
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return (0);
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}
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int
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seq_open(dev_t i_dev, int flags, int mode, struct proc *p)
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{
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int unit;
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sc_p scp;
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seqdev_info *sd;
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unit = MIDIUNIT(i_dev);
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DEB(printf("seq%d: opening.\n", unit));
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if (unit >= NSEQ_MAX) {
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DEB(printf("seq_open: unit %d does not exist.\n", unit));
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return (ENXIO);
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}
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sd = get_seqdev_info(i_dev, &unit);
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if (sd == NULL) {
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DEB(printf("seq_open: unit %d is not configured.\n", unit));
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return (ENXIO);
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}
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scp = sd->softc;
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/* Mark this device busy. */
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mtx_lock(&sd->flagqueue_mtx);
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if ((sd->flags & SEQ_F_BUSY) != 0) {
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mtx_unlock(&sd->flagqueue_mtx);
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DEB(printf("seq_open: unit %d is busy.\n", unit));
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return (EBUSY);
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}
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sd->flags |= SEQ_F_BUSY;
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sd->flags &= ~(SEQ_F_READING | SEQ_F_WRITING);
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scp->fflags = flags;
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/* Init the queue. */
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midibuf_clear(&sd->midi_dbuf_in);
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midibuf_clear(&sd->midi_dbuf_out);
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/* Init timestamp. */
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scp->seq_time = seq_gettime();
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scp->prev_event_time = 0;
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scp->prev_input_time = 0;
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scp->prev_wakeup_time = scp->seq_time;
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mtx_unlock(&sd->flagqueue_mtx);
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DEB(printf("seq%d: opened.\n", unit));
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return (0);
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}
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int
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seq_close(dev_t i_dev, int flags, int mode, struct proc *p)
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{
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int unit;
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sc_p scp;
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seqdev_info *sd;
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mididev_info *md;
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unit = MIDIUNIT(i_dev);
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DEB(printf("seq%d: closing.\n", unit));
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if (unit >= NSEQ_MAX) {
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DEB(printf("seq_close: unit %d does not exist.\n", unit));
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return (ENXIO);
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}
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sd = get_seqdev_info(i_dev, &unit);
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if (sd == NULL) {
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DEB(printf("seq_close: unit %d is not configured.\n", unit));
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return (ENXIO);
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}
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scp = sd->softc;
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mtx_lock(&sd->flagqueue_mtx);
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if (!(sd->flags & MIDI_F_NBIO))
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seq_sync(scp);
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/* Stop the timer. */
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seq_stoptimer(scp);
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/* Reset the sequencer. */
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seq_reset(scp);
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seq_sync(scp);
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/* Clean up the midi device. */
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TAILQ_FOREACH(md, &scp->midi_open, md_linkseq)
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lookup_mididev(scp, md->unit, LOOKUP_CLOSE, NULL);
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mtx_unlock(&sd->flagqueue_mtx);
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/* Stop playing and unmark this device busy. */
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mtx_lock(&sd->flagqueue_mtx);
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sd->flags &= ~(SEQ_F_BUSY | SEQ_F_READING | SEQ_F_WRITING | SEQ_F_INSYNC);
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mtx_unlock(&sd->flagqueue_mtx);
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DEB(printf("seq%d: closed.\n", unit));
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return (0);
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}
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int
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seq_read(dev_t i_dev, struct uio *buf, int flag)
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{
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int unit, ret, len;
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sc_p scp;
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seqdev_info *sd;
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unit = MIDIUNIT(i_dev);
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/*DEB(printf("seq%d: reading.\n", unit));*/
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if (unit >= NSEQ_MAX) {
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DEB(printf("seq_read: unit %d does not exist.\n", unit));
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return (ENXIO);
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}
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sd = get_seqdev_info(i_dev, &unit);
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if (sd == NULL) {
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DEB(printf("seq_read: unit %d is not configured.\n", unit));
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return (ENXIO);
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}
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scp = sd->softc;
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if ((scp->fflags & FREAD) == 0) {
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DEB(printf("seq_read: unit %d is not for reading.\n", unit));
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return (EIO);
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}
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mtx_lock(&sd->flagqueue_mtx);
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/* Begin recording. */
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if ((sd->flags & SEQ_F_READING) == 0)
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sd->callback(sd, SEQ_CB_START | SEQ_CB_RD);
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len = 0;
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/* Have we got the data to read? */
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if ((sd->flags & SEQ_F_NBIO) != 0 && sd->midi_dbuf_in.rl == 0)
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ret = EAGAIN;
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else {
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len = buf->uio_resid;
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ret = midibuf_uioread(&sd->midi_dbuf_in, buf, len, &sd->flagqueue_mtx);
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if (ret < 0)
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ret = -ret;
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else
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ret = 0;
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}
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mtx_unlock(&sd->flagqueue_mtx);
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return (ret);
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}
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int
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seq_write(dev_t i_dev, struct uio *buf, int flag)
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{
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u_char event[EV_SZ], ev_code;
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int unit, count, countorg, midiunit, ev_size, p, ret;
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sc_p scp;
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seqdev_info *sd;
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mididev_info *md;
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unit = MIDIUNIT(i_dev);
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/*DEB(printf("seq%d: writing.\n", unit));*/
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if (unit >= NSEQ_MAX) {
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DEB(printf("seq_write: unit %d does not exist.\n", unit));
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return (ENXIO);
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}
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sd = get_seqdev_info(i_dev, &unit);
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if (sd == NULL) {
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DEB(printf("seq_write: unit %d is not configured.\n", unit));
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return (ENXIO);
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}
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scp = sd->softc;
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if ((scp->fflags & FWRITE) == 0) {
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DEB(printf("seq_write: unit %d is not for writing.\n", unit));
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return (EIO);
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}
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p = 0;
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countorg = buf->uio_resid;
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count = countorg;
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/* Pick up an event. */
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while (count >= 4) {
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if (uiomove((caddr_t)event, 4, buf))
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printf("seq_write: user memory mangled?\n");
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ev_code = event[0];
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/* Have a look at the event code. */
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if (ev_code == SEQ_FULLSIZE) {
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/* A long event, these are the patches/samples for a synthesizer. */
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midiunit = *(u_short *)&event[2];
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mtx_lock(&sd->flagqueue_mtx);
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ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
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mtx_unlock(&sd->flagqueue_mtx);
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if (ret != 0)
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return (ret);
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DEB(printf("seq_write: loading a patch to the unit %d.\n", midiunit));
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ret = md->synth.loadpatch(md, *(short *)&event[0], buf, p + 4, count, 0);
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return (ret);
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}
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if (ev_code >= 128) {
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/* Some sort of an extended event. The size is eight bytes. */
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#if notyet
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if (scp->seq_mode == SEQ_2 && ev_code == SEQ_EXTENDED) {
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printf("seq%d: invalid level two event %x.\n", unit, ev_code);
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return (EINVAL);
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}
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#endif /* notyet */
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ev_size = 8;
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if (count < ev_size) {
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/* No more data. Start playing now. */
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mtx_lock(&sd->flagqueue_mtx);
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if ((sd->flags & SEQ_F_WRITING) == 0)
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sd->callback(sd, SEQ_CB_START | SEQ_CB_WR);
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mtx_unlock(&sd->flagqueue_mtx);
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return (0);
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}
|
|
if (uiomove((caddr_t)&event[4], 4, buf))
|
|
printf("seq_write: user memory mangled?\n");
|
|
} else {
|
|
|
|
/* Not an extended event. The size is four bytes. */
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2) {
|
|
printf("seq%d: four byte event in level two mode.\n", unit);
|
|
return (EINVAL);
|
|
}
|
|
#endif /* notyet */
|
|
ev_size = 4;
|
|
}
|
|
if (ev_code == SEQ_MIDIPUTC) {
|
|
/* An event passed to the midi device itself. */
|
|
midiunit = event[2];
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
return (ret);
|
|
}
|
|
|
|
/*DEB(printf("seq_write: queueing event %d.\n", event[0]));*/
|
|
/* Now we queue the event. */
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
switch (seq_queue(scp, event)) {
|
|
case EAGAIN:
|
|
/* The queue is full. Start playing now. */
|
|
if ((sd->flags & SEQ_F_WRITING) == 0)
|
|
sd->callback(sd, SEQ_CB_START | SEQ_CB_WR);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
return (0);
|
|
case EINTR:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
return (EINTR);
|
|
case ERESTART:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
return (ERESTART);
|
|
}
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
p += ev_size;
|
|
count -= ev_size;
|
|
}
|
|
|
|
/* We have written every single data. Start playing now. */
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
if ((sd->flags & SEQ_F_WRITING) == 0)
|
|
sd->callback(sd, SEQ_CB_START | SEQ_CB_WR);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
seq_ioctl(dev_t i_dev, u_long cmd, caddr_t arg, int mode, struct proc *p)
|
|
{
|
|
int unit, midiunit, ret, tmp, arg2;
|
|
sc_p scp;
|
|
seqdev_info *sd;
|
|
mididev_info *md;
|
|
struct synth_info *synthinfo;
|
|
struct midi_info *midiinfo;
|
|
struct patmgr_info *patinfo;
|
|
snd_sync_parm *syncparm;
|
|
struct seq_event_rec *event;
|
|
struct snd_size *sndsize;
|
|
|
|
unit = MIDIUNIT(i_dev);
|
|
|
|
DEB(printf("seq%d: ioctlling, cmd 0x%x.\n", unit, (int)cmd));
|
|
|
|
if (unit >= NSEQ_MAX) {
|
|
DEB(printf("seq_ioctl: unit %d does not exist.\n", unit));
|
|
return (ENXIO);
|
|
}
|
|
sd = get_seqdev_info(i_dev, &unit);
|
|
if (sd == NULL) {
|
|
DEB(printf("seq_ioctl: unit %d is not configured.\n", unit));
|
|
return (ENXIO);
|
|
}
|
|
scp = sd->softc;
|
|
|
|
ret = 0;
|
|
|
|
switch (cmd) {
|
|
|
|
/*
|
|
* we start with the new ioctl interface.
|
|
*/
|
|
case AIONWRITE: /* how many bytes can be written ? */
|
|
*(int *)arg = sd->midi_dbuf_out.fl;
|
|
break;
|
|
|
|
case AIOSSIZE: /* set the current blocksize */
|
|
sndsize = (struct snd_size *)arg;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
if (sndsize->play_size <= sd->midi_dbuf_out.unit_size && sndsize->rec_size <= sd->midi_dbuf_in.unit_size) {
|
|
sd->midi_dbuf_out.blocksize = sd->midi_dbuf_out.unit_size;
|
|
sd->midi_dbuf_in.blocksize = sd->midi_dbuf_in.unit_size;
|
|
sndsize->play_size = sd->midi_dbuf_out.blocksize;
|
|
sndsize->rec_size = sd->midi_dbuf_in.blocksize;
|
|
sd->flags &= ~MIDI_F_HAS_SIZE;
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
}
|
|
else {
|
|
if (sndsize->play_size > sd->midi_dbuf_out.bufsize / 4)
|
|
sndsize->play_size = sd->midi_dbuf_out.bufsize / 4;
|
|
if (sndsize->rec_size > sd->midi_dbuf_in.bufsize / 4)
|
|
sndsize->rec_size = sd->midi_dbuf_in.bufsize / 4;
|
|
/* Round up the size to the multiple of EV_SZ. */
|
|
sd->midi_dbuf_out.blocksize =
|
|
((sndsize->play_size + sd->midi_dbuf_out.unit_size - 1)
|
|
/ sd->midi_dbuf_out.unit_size) * sd->midi_dbuf_out.unit_size;
|
|
sd->midi_dbuf_in.blocksize =
|
|
((sndsize->rec_size + sd->midi_dbuf_in.unit_size - 1)
|
|
/ sd->midi_dbuf_in.unit_size) * sd->midi_dbuf_in.unit_size;
|
|
sndsize->play_size = sd->midi_dbuf_out.blocksize;
|
|
sndsize->rec_size = sd->midi_dbuf_in.blocksize;
|
|
sd->flags |= MIDI_F_HAS_SIZE;
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
}
|
|
|
|
ret = 0;
|
|
break;
|
|
|
|
case AIOGSIZE: /* get the current blocksize */
|
|
sndsize = (struct snd_size *)arg;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
sndsize->play_size = sd->midi_dbuf_out.blocksize;
|
|
sndsize->rec_size = sd->midi_dbuf_in.blocksize;
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
|
|
ret = 0;
|
|
break;
|
|
|
|
case AIOSTOP:
|
|
if (*(int *)arg == AIOSYNC_PLAY) {
|
|
|
|
/* Stop writing. */
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
sd->callback(sd, SEQ_CB_ABORT | SEQ_CB_WR);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
|
|
/* Pass the ioctl to the midi devices. */
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq) {
|
|
if ((md->flags & MIDI_F_WRITING) != 0) {
|
|
arg2 = *(int *)arg;
|
|
midi_ioctl(MIDIMKDEV(major(i_dev), md->unit, SND_DEV_MIDIN), cmd, (caddr_t)&arg2, mode, p);
|
|
}
|
|
}
|
|
|
|
*(int *)arg = sd->midi_dbuf_out.rl;
|
|
}
|
|
else if (*(int *)arg == AIOSYNC_CAPTURE) {
|
|
|
|
/* Stop reading. */
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
sd->callback(sd, SEQ_CB_ABORT | SEQ_CB_RD);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
|
|
/* Pass the ioctl to the midi devices. */
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq) {
|
|
if ((md->flags & MIDI_F_WRITING) != 0) {
|
|
arg2 = *(int *)arg;
|
|
midi_ioctl(MIDIMKDEV(major(i_dev), md->unit, SND_DEV_MIDIN), cmd, (caddr_t)&arg2, mode, p);
|
|
}
|
|
}
|
|
|
|
*(int *)arg = sd->midi_dbuf_in.rl;
|
|
}
|
|
|
|
ret = 0;
|
|
break;
|
|
|
|
case AIOSYNC:
|
|
syncparm = (snd_sync_parm *)arg;
|
|
scp->sync_parm = *syncparm;
|
|
|
|
/* XXX Should select(2) against us watch the blocksize, or sync_parm? */
|
|
|
|
ret = 0;
|
|
break;
|
|
|
|
case SNDCTL_TMR_TIMEBASE:
|
|
case SNDCTL_TMR_TEMPO:
|
|
case SNDCTL_TMR_START:
|
|
case SNDCTL_TMR_STOP:
|
|
case SNDCTL_TMR_CONTINUE:
|
|
case SNDCTL_TMR_METRONOME:
|
|
case SNDCTL_TMR_SOURCE:
|
|
#if notyet
|
|
if (scp->seq_mode != SEQ_2) {
|
|
ret = EINVAL;
|
|
break;
|
|
}
|
|
ret = tmr->ioctl(tmr_no, cmd, arg);
|
|
#endif /* notyet */
|
|
break;
|
|
case SNDCTL_TMR_SELECT:
|
|
#if notyet
|
|
if (scp->seq_mode != SEQ_2) {
|
|
ret = EINVAL;
|
|
break;
|
|
}
|
|
#endif /* notyet */
|
|
scp->pending_timer = *(int *)arg;
|
|
if (scp->pending_timer < 0 || scp->pending_timer >= /*NTIMER*/1) {
|
|
scp->pending_timer = -1;
|
|
ret = EINVAL;
|
|
break;
|
|
}
|
|
*(int *)arg = scp->pending_timer;
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_SEQ_PANIC:
|
|
mtx_lock(&scp->devinfo->flagqueue_mtx);
|
|
seq_panic(scp);
|
|
mtx_unlock(&scp->devinfo->flagqueue_mtx);
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_SEQ_SYNC:
|
|
if (mode == O_RDONLY) {
|
|
ret = 0;
|
|
break;
|
|
}
|
|
mtx_lock(&scp->devinfo->flagqueue_mtx);
|
|
ret = seq_sync(scp);
|
|
mtx_unlock(&scp->devinfo->flagqueue_mtx);
|
|
break;
|
|
case SNDCTL_SEQ_RESET:
|
|
mtx_lock(&scp->devinfo->flagqueue_mtx);
|
|
seq_reset(scp);
|
|
mtx_unlock(&scp->devinfo->flagqueue_mtx);
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_SEQ_TESTMIDI:
|
|
midiunit = *(int *)arg;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
break;
|
|
case SNDCTL_SEQ_GETINCOUNT:
|
|
if (mode == O_WRONLY)
|
|
*(int *)arg = 0;
|
|
else
|
|
*(int *)arg = sd->midi_dbuf_in.rl;
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_SEQ_GETOUTCOUNT:
|
|
if (mode == O_RDONLY)
|
|
*(int *)arg = 0;
|
|
else
|
|
*(int *)arg = sd->midi_dbuf_out.fl;
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_SEQ_CTRLRATE:
|
|
#if notyet
|
|
if (scp->seq_mode != SEQ_2) {
|
|
ret = tmr->ioctl(tmr_no, cmd, arg);
|
|
break;
|
|
}
|
|
#endif /* notyet */
|
|
if (*(int *)arg != 0) {
|
|
ret = EINVAL;
|
|
break;
|
|
}
|
|
*(int *)arg = hz;
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_SEQ_RESETSAMPLES:
|
|
midiunit = *(int *)arg;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
break;
|
|
ret = midi_ioctl(MIDIMKDEV(major(i_dev), midiunit, SND_DEV_MIDIN), cmd, arg, mode, p);
|
|
break;
|
|
case SNDCTL_SEQ_NRSYNTHS:
|
|
*(int *)arg = mididev_info_number();
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_SEQ_NRMIDIS:
|
|
*(int *)arg = mididev_info_number();
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_SYNTH_MEMAVL:
|
|
midiunit = *(int *)arg;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
break;
|
|
ret = midi_ioctl(MIDIMKDEV(major(i_dev), midiunit, SND_DEV_MIDIN), cmd, arg, mode, p);
|
|
break;
|
|
case SNDCTL_FM_4OP_ENABLE:
|
|
midiunit = *(int *)arg;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
break;
|
|
ret = midi_ioctl(MIDIMKDEV(major(i_dev), midiunit, SND_DEV_MIDIN), cmd, arg, mode, p);
|
|
break;
|
|
case SNDCTL_SYNTH_INFO:
|
|
synthinfo = (struct synth_info *)arg;
|
|
midiunit = synthinfo->device;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
break;
|
|
ret = midi_ioctl(MIDIMKDEV(major(i_dev), midiunit, SND_DEV_MIDIN), cmd, arg, mode, p);
|
|
break;
|
|
case SNDCTL_SEQ_OUTOFBAND:
|
|
event = (struct seq_event_rec *)arg;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = seq_playevent(scp, event->arr);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
break;
|
|
case SNDCTL_MIDI_INFO:
|
|
midiinfo = (struct midi_info *)arg;
|
|
midiunit = midiinfo->device;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
break;
|
|
ret = midi_ioctl(MIDIMKDEV(major(i_dev), midiunit, SND_DEV_MIDIN), cmd, arg, mode, p);
|
|
break;
|
|
case SNDCTL_PMGR_IFACE:
|
|
patinfo = (struct patmgr_info *)arg;
|
|
midiunit = patinfo->device;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
break;
|
|
ret = midi_ioctl(MIDIMKDEV(major(i_dev), midiunit, SND_DEV_MIDIN), cmd, arg, mode, p);
|
|
break;
|
|
case SNDCTL_PMGR_ACCESS:
|
|
patinfo = (struct patmgr_info *)arg;
|
|
midiunit = patinfo->device;
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
break;
|
|
ret = midi_ioctl(MIDIMKDEV(major(i_dev), midiunit, SND_DEV_MIDIN), cmd, arg, mode, p);
|
|
break;
|
|
case SNDCTL_SEQ_THRESHOLD:
|
|
tmp = *(int *)arg;
|
|
RANGE(tmp, 1, sd->midi_dbuf_out.bufsize - 1);
|
|
scp->output_threshould = tmp;
|
|
ret = 0;
|
|
break;
|
|
case SNDCTL_MIDI_PRETIME:
|
|
tmp = *(int *)arg;
|
|
if (tmp < 0)
|
|
tmp = 0;
|
|
tmp = (hz * tmp) / 10;
|
|
scp->pre_event_timeout = tmp;
|
|
ret = 0;
|
|
break;
|
|
default:
|
|
if (scp->fflags == O_RDONLY) {
|
|
ret = EIO;
|
|
break;
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = lookup_mididev(scp, 0, LOOKUP_OPEN, &md);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (ret != 0)
|
|
break;
|
|
ret = midi_ioctl(MIDIMKDEV(major(i_dev), 0, SND_DEV_MIDIN), cmd, arg, mode, p);
|
|
break;
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
seq_poll(dev_t i_dev, int events, struct proc *p)
|
|
{
|
|
int unit, ret, lim;
|
|
sc_p scp;
|
|
seqdev_info *sd;
|
|
|
|
unit = MIDIUNIT(i_dev);
|
|
|
|
DEB(printf("seq%d: polling.\n", unit));
|
|
|
|
if (unit >= NSEQ_MAX) {
|
|
DEB(printf("seq_poll: unit %d does not exist.\n", unit));
|
|
return (ENXIO);
|
|
}
|
|
sd = get_seqdev_info(i_dev, &unit);
|
|
if (sd == NULL) {
|
|
DEB(printf("seq_poll: unit %d is not configured.\n", unit));
|
|
return (ENXIO);
|
|
}
|
|
scp = sd->softc;
|
|
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
|
|
ret = 0;
|
|
|
|
/* Look up the apropriate queue and select it. */
|
|
if ((events & (POLLOUT | POLLWRNORM)) != 0) {
|
|
/* Start playing. */
|
|
sd->callback(sd, SEQ_CB_START | SEQ_CB_WR);
|
|
|
|
/* Find out the boundary. */
|
|
if ((sd->flags & SEQ_F_HAS_SIZE) != 0)
|
|
lim = sd->midi_dbuf_out.blocksize;
|
|
else
|
|
lim = sd->midi_dbuf_out.unit_size;
|
|
if (sd->midi_dbuf_out.fl < lim)
|
|
/* No enough space, record select. */
|
|
selrecord(p, &sd->midi_dbuf_out.sel);
|
|
else
|
|
/* We can write now. */
|
|
ret |= events & (POLLOUT | POLLWRNORM);
|
|
}
|
|
if ((events & (POLLIN | POLLRDNORM)) != 0) {
|
|
/* Start recording. */
|
|
sd->callback(sd, SEQ_CB_START | SEQ_CB_RD);
|
|
|
|
/* Find out the boundary. */
|
|
if ((sd->flags & SEQ_F_HAS_SIZE) != 0)
|
|
lim = sd->midi_dbuf_in.blocksize;
|
|
else
|
|
lim = sd->midi_dbuf_in.unit_size;
|
|
if (sd->midi_dbuf_in.rl < lim)
|
|
/* No data ready, record select. */
|
|
selrecord(p, &sd->midi_dbuf_in.sel);
|
|
else
|
|
/* We can write now. */
|
|
ret |= events & (POLLIN | POLLRDNORM);
|
|
}
|
|
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
|
|
return (ret);
|
|
}
|
|
|
|
static void
|
|
seq_intr(void *p, mididev_info *md)
|
|
{
|
|
sc_p scp;
|
|
seqdev_info *sd;
|
|
|
|
sd = (seqdev_info *)p;
|
|
scp = sd->softc;
|
|
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
|
|
/* Restart playing if we have the data to output. */
|
|
if (scp->queueout_pending)
|
|
sd->callback(sd, SEQ_CB_START | SEQ_CB_WR);
|
|
/* Check the midi device if we are reading. */
|
|
if ((sd->flags & SEQ_F_READING) != 0)
|
|
seq_midiinput(scp, md);
|
|
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
}
|
|
|
|
static int
|
|
seq_callback(seqdev_info *sd, int reason)
|
|
{
|
|
int unit;
|
|
sc_p scp;
|
|
|
|
/*DEB(printf("seq_callback: reason 0x%x.\n", reason));*/
|
|
|
|
if (sd == NULL) {
|
|
DEB(printf("seq_callback: device not configured.\n"));
|
|
return (ENXIO);
|
|
}
|
|
scp = sd->softc;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
switch (reason & SEQ_CB_REASON_MASK) {
|
|
case SEQ_CB_START:
|
|
if ((reason & SEQ_CB_RD) != 0 && (sd->flags & SEQ_F_READING) == 0)
|
|
/* Begin recording. */
|
|
sd->flags |= SEQ_F_READING;
|
|
if ((reason & SEQ_CB_WR) != 0 && (sd->flags & SEQ_F_WRITING) == 0)
|
|
/* Start playing. */
|
|
seq_startplay(scp);
|
|
break;
|
|
case SEQ_CB_STOP:
|
|
case SEQ_CB_ABORT:
|
|
if ((reason & SEQ_CB_RD) != 0 && (sd->flags & SEQ_F_READING) != 0) {
|
|
/* Stop recording. */
|
|
sd->flags &= ~SEQ_F_READING;
|
|
scp->seq_time = seq_gettime();
|
|
scp->prev_input_time = 0;
|
|
}
|
|
if ((reason & SEQ_CB_WR) != 0 && (sd->flags & SEQ_F_WRITING) != 0) {
|
|
/* Stop Playing. */
|
|
sd->flags &= ~SEQ_F_WRITING;
|
|
scp->queueout_pending = 0;
|
|
scp->seq_time = seq_gettime();
|
|
scp->prev_input_time = 0;
|
|
|
|
/* Stop the timer. */
|
|
seq_stoptimer(scp);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* The functions below here are the libraries for the above ones.
|
|
*/
|
|
|
|
static int
|
|
seq_queue(sc_p scp, u_char *note)
|
|
{
|
|
int unit, err;
|
|
seqdev_info *sd;
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
/*DEB(printf("seq%d: queueing.\n", unit));*/
|
|
|
|
if ((sd->flags & SEQ_F_INSYNC) != 0) {
|
|
cv_wait(&sd->insync_cv, &sd->flagqueue_mtx);
|
|
cv_signal(&sd->insync_cv);
|
|
}
|
|
|
|
if (sd->midi_dbuf_out.fl < EV_SZ) {
|
|
/* We have no space. Start playing if not yet. */
|
|
if ((sd->flags & SEQ_F_WRITING) == 0)
|
|
sd->callback(sd, SEQ_CB_START | SEQ_CB_WR);
|
|
if ((sd->flags & SEQ_F_NBIO) != 0 && sd->midi_dbuf_out.fl < EV_SZ)
|
|
/* We would block. */
|
|
return (EAGAIN);
|
|
else {
|
|
while (sd->midi_dbuf_out.fl < EV_SZ) {
|
|
/* We have no space. Good night. */
|
|
err = msleep(&sd->midi_dbuf_out.tsleep_out, &sd->flagqueue_mtx, PRIBIO | PCATCH, "seqque", 0);
|
|
if (err == EINTR || err == ERESTART) {
|
|
if (err == EINTR)
|
|
sd->callback(sd, SEQ_CB_STOP | SEQ_CB_WR);
|
|
return (err);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* We now have enough space to write. */
|
|
err = midibuf_seqwrite(&sd->midi_dbuf_out, note, EV_SZ, &sd->flagqueue_mtx);
|
|
|
|
if (err < 0)
|
|
err = -err;
|
|
else {
|
|
err = 0;
|
|
/* Start playing if we have some data in the queue. */
|
|
if (sd->midi_dbuf_out.rl >= EV_SZ && ((sd->flags & SEQ_F_WRITING) == 0))
|
|
sd->callback(sd, SEQ_CB_START | SEQ_CB_WR);
|
|
}
|
|
|
|
return (err);
|
|
}
|
|
|
|
static void
|
|
seq_startplay(sc_p scp)
|
|
{
|
|
int unit;
|
|
u_char event[EV_SZ];
|
|
seqdev_info *sd;
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
/* Dequeue the events to play. */
|
|
while (sd->midi_dbuf_out.rl >= EV_SZ) {
|
|
|
|
midibuf_seqread(&sd->midi_dbuf_out, event, EV_SZ, &sd->flagqueue_mtx);
|
|
|
|
switch (seq_playevent(scp, event)) {
|
|
case TIMERARMED:
|
|
return;
|
|
case QUEUEFULL:
|
|
/* We cannot play any further. */
|
|
midibuf_sequnread(&sd->midi_dbuf_out, event, EV_SZ, &sd->flagqueue_mtx);
|
|
return;
|
|
case MORE:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Played every event in the queue. */
|
|
sd->flags &= ~SEQ_F_WRITING;
|
|
}
|
|
|
|
static int
|
|
seq_playevent(sc_p scp, u_char *event)
|
|
{
|
|
int unit, ret;
|
|
long *delay;
|
|
seqdev_info *sd;
|
|
mididev_info *md;
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
ret = lookup_mididev(scp, 0, LOOKUP_OPEN, &md);
|
|
if (ret != 0)
|
|
return (MORE);
|
|
|
|
switch(event[0]) {
|
|
case SEQ_NOTEOFF:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.killnote(md, event[1], 255, event[3]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = QUEUEFULL;
|
|
break;
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = MORE;
|
|
break;
|
|
case SEQ_NOTEON:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if ((event[4] < 128 || event[4] == 255) && md->synth.startnote(md, event[1], event[2], event[3]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = QUEUEFULL;
|
|
break;
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = MORE;
|
|
break;
|
|
case SEQ_WAIT:
|
|
|
|
/* Extract the delay. */
|
|
delay = (long *)event;
|
|
*delay = (*delay >> 8) & 0xffffff;
|
|
if (*delay > 0) {
|
|
/* Arm the timer. */
|
|
sd->flags |= SEQ_F_WRITING;
|
|
if (seq_requesttimer(scp, *delay)) {
|
|
ret = TIMERARMED;
|
|
break;
|
|
}
|
|
}
|
|
ret = MORE;
|
|
break;
|
|
case SEQ_PGMCHANGE:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.setinstr(md, event[1], event[2]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = QUEUEFULL;
|
|
break;
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = MORE;
|
|
break;
|
|
case SEQ_SYNCTIMER:
|
|
/* Reset the timer. */
|
|
scp->seq_time = seq_gettime();
|
|
scp->prev_input_time = 0;
|
|
scp->prev_event_time = 0;
|
|
scp->prev_wakeup_time = scp->seq_time;
|
|
ret = MORE;
|
|
break;
|
|
case SEQ_MIDIPUTC:
|
|
/* Pass through to the midi device. */
|
|
ret = lookup_mididev(scp, event[2], LOOKUP_OPEN, &md);
|
|
if (ret != 0) {
|
|
ret = MORE;
|
|
break;
|
|
}
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.writeraw(md, &event[1], sizeof(event[1]), 1) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
/* The queue was full. Try again later. */
|
|
ret = QUEUEFULL;
|
|
break;
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = MORE;
|
|
break;
|
|
case SEQ_ECHO:
|
|
/* Echo this event back. */
|
|
if (seq_copytoinput(scp, event, 4) == EAGAIN) {
|
|
ret = QUEUEFULL;
|
|
break;
|
|
}
|
|
ret = MORE;
|
|
break;
|
|
case SEQ_PRIVATE:
|
|
ret = lookup_mididev(scp, event[1], LOOKUP_OPEN, &md);
|
|
if (ret != 0) {
|
|
ret = MORE;
|
|
break;
|
|
}
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.hwcontrol(md, event) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = QUEUEFULL;
|
|
break;
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
ret = MORE;
|
|
break;
|
|
case SEQ_EXTENDED:
|
|
ret = seq_extended(scp, event);
|
|
break;
|
|
case EV_CHN_VOICE:
|
|
ret = seq_chnvoice(scp, event);
|
|
break;
|
|
case EV_CHN_COMMON:
|
|
ret = seq_chncommon(scp, event);
|
|
break;
|
|
case EV_TIMING:
|
|
ret = seq_timing(scp, event);
|
|
break;
|
|
case EV_SEQ_LOCAL:
|
|
ret = seq_local(scp, event);
|
|
break;
|
|
case EV_SYSEX:
|
|
ret = seq_sysex(scp, event);
|
|
break;
|
|
default:
|
|
ret = MORE;
|
|
break;
|
|
}
|
|
|
|
switch (ret) {
|
|
case QUEUEFULL:
|
|
/*DEB(printf("seq_playevent: the queue is full.\n"));*/
|
|
/* The queue was full. Try again on the interrupt by the midi device. */
|
|
sd->flags |= SEQ_F_WRITING;
|
|
scp->queueout_pending = 1;
|
|
break;
|
|
case TIMERARMED:
|
|
sd->flags |= SEQ_F_WRITING;
|
|
/* FALLTHRU */
|
|
case MORE:
|
|
scp->queueout_pending = 0;
|
|
break;
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
|
|
static u_long
|
|
seq_gettime(void)
|
|
{
|
|
struct timeval timecopy;
|
|
|
|
getmicrotime(&timecopy);
|
|
return timecopy.tv_usec / (1000000 / hz) + (u_long) timecopy.tv_sec * hz;
|
|
}
|
|
|
|
static int
|
|
seq_requesttimer(sc_p scp, int delay)
|
|
{
|
|
u_long cur_time, rel_base;
|
|
|
|
/*DEB(printf("seq%d: requested timer at delay of %d.\n", unit, delay));*/
|
|
|
|
mtx_assert(&scp->devinfo->flagqueue_mtx, MA_OWNED);
|
|
|
|
cur_time = seq_gettime();
|
|
|
|
scp->prev_event_time = delay;
|
|
if (delay < 0)
|
|
/* Request a new timer. */
|
|
delay = -delay;
|
|
else {
|
|
rel_base = cur_time - scp->seq_time;
|
|
if (delay <= rel_base) {
|
|
seq_stoptimer(scp);
|
|
return 0;
|
|
}
|
|
delay -= rel_base;
|
|
}
|
|
|
|
#if notdef
|
|
/*
|
|
* Compensate the delay of midi message transmission.
|
|
* XXX Do we have to consider the accumulation of errors
|
|
* less than 1/hz second?
|
|
*/
|
|
delay -= (cur_time - scp->prev_wakeup_time);
|
|
if (delay < 1) {
|
|
printf("sequencer: prev = %lu, cur = %lu, delay = %d, skip sleeping.\n",
|
|
scp->prev_wakeup_time, cur_time, delay);
|
|
seq_stoptimer(scp);
|
|
return 0;
|
|
}
|
|
#endif /* notdef */
|
|
|
|
callout_reset(&scp->timeout_ch, delay, seq_timer, (void *)scp);
|
|
scp->timer_running = 1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
seq_stoptimer(sc_p scp)
|
|
{
|
|
/*DEB(printf("seq%d: stopping timer.\n", unit));*/
|
|
|
|
mtx_assert(&scp->devinfo->flagqueue_mtx, MA_OWNED);
|
|
|
|
if (scp->timer_running) {
|
|
callout_stop(&scp->timeout_ch);
|
|
scp->timer_running = 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
seq_midiinput(sc_p scp, mididev_info *md)
|
|
{
|
|
int unit, midiunit;
|
|
u_long tstamp;
|
|
u_char event[4];
|
|
seqdev_info *sd;
|
|
|
|
mtx_assert(&scp->devinfo->flagqueue_mtx, MA_OWNED);
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
/* Can this midi device interrupt for input? */
|
|
midiunit = md->unit;
|
|
if (lookup_mididev(scp, midiunit, LOOKUP_EXIST, NULL) != 0)
|
|
return;
|
|
|
|
if ((md->flags & MIDI_F_READING) != 0 && md->intrarg == sd) {
|
|
/* Read the input data. */
|
|
while (md->synth.readraw(md, &event[1], sizeof(event[1]), 1) == 0) {
|
|
tstamp = seq_gettime() - scp->seq_time;
|
|
if (tstamp != scp->prev_input_time) {
|
|
/* Insert a wait between events. */
|
|
tstamp = (tstamp << 8) | SEQ_WAIT;
|
|
seq_copytoinput(scp, (u_char *)&tstamp, 4);
|
|
scp->prev_input_time = tstamp;
|
|
}
|
|
event[0] = SEQ_MIDIPUTC;
|
|
event[2] = midiunit;
|
|
event[3] = 0;
|
|
seq_copytoinput(scp, event, sizeof(event));
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
seq_copytoinput(sc_p scp, u_char *event, int len)
|
|
{
|
|
seqdev_info *sd;
|
|
|
|
sd = scp->devinfo;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
if (midibuf_input_intr(&sd->midi_dbuf_in, event, len) == -EAGAIN)
|
|
return (EAGAIN);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
seq_extended(sc_p scp, u_char *event)
|
|
{
|
|
int unit;
|
|
seqdev_info *sd;
|
|
mididev_info *md;
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
if (lookup_mididev(scp, event[2], LOOKUP_OPEN, &md) != 0)
|
|
return (MORE);
|
|
|
|
switch (event[1]) {
|
|
case SEQ_NOTEOFF:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.killnote(md, event[3], event[4], event[5]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
case SEQ_NOTEON:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if ((event[4] < 128 || event[4] == 255) && md->synth.startnote(md, event[3], event[4], event[5]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
case SEQ_PGMCHANGE:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.setinstr(md, event[3], event[4]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
case SEQ_AFTERTOUCH:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.aftertouch(md, event[3], event[4]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
case SEQ_BALANCE:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.panning(md, event[3], (char)event[4]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
case SEQ_CONTROLLER:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.controller(md, event[3], event[4], *(short *)&event[5]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
case SEQ_VOLMODE:
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.volumemethod != NULL && md->synth.volumemethod(md, event[3]) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
}
|
|
|
|
return (MORE);
|
|
}
|
|
|
|
static int
|
|
seq_chnvoice(sc_p scp, u_char *event)
|
|
{
|
|
int voice;
|
|
seqdev_info *sd;
|
|
mididev_info *md;
|
|
u_char dev, cmd, chn, note, parm;
|
|
|
|
voice = -1;
|
|
dev = event[1];
|
|
cmd = event[2];
|
|
chn = event[3];
|
|
note = event[4];
|
|
parm = event[5];
|
|
|
|
sd = scp->devinfo;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
if (lookup_mididev(scp, dev, LOOKUP_OPEN, &md) != 0)
|
|
return (MORE);
|
|
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2 && md->synth.allocvoice != NULL)
|
|
voice = seq_allocvoice(scp, md, chn, note);
|
|
#endif /* notyet */
|
|
switch (cmd) {
|
|
case MIDI_NOTEON:
|
|
if (note < 128 || note == 255) {
|
|
#if notyet
|
|
if (voice == -1 && scp->seq_mode == SEQ_2 && md->synth.allocvoice)
|
|
/* This is an internal synthesizer. (FM, GUS, etc) */
|
|
if ((voice = seq_allocvoice(scp, md, chn, note)) == -EAGAIN)
|
|
return (QUEUEFULL);
|
|
#endif /* notyet */
|
|
if (voice == -1)
|
|
voice = chn;
|
|
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2 && chn == 9) {
|
|
/* This channel is a percussion. The note number is the patch number. */
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.setinstr(md, voice, 128 + note) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
|
|
note = 60; /* Middle C. */
|
|
}
|
|
if (scp->seq_mode == SEQ_2) {
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.setupvoice(md, voice, chn) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
}
|
|
#endif /* notyet */
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.startnote(md, voice, note, parm) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
}
|
|
break;
|
|
case MIDI_NOTEOFF:
|
|
if (voice == -1)
|
|
voice = chn;
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.killnote(md, voice, note, parm) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
case MIDI_KEY_PRESSURE:
|
|
if (voice == -1)
|
|
voice = chn;
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.aftertouch(md, voice, parm) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
break;
|
|
}
|
|
|
|
return (MORE);
|
|
}
|
|
|
|
static int
|
|
seq_findvoice(mididev_info *md, int chn, int note)
|
|
{
|
|
int i;
|
|
u_short key;
|
|
|
|
key = (chn << 8) | (note + 1);
|
|
|
|
mtx_lock(&md->synth.vc_mtx);
|
|
for (i = 0 ; i < md->synth.alloc.max_voice ; i++)
|
|
if (md->synth.alloc.map[i] == key) {
|
|
mtx_unlock(&md->synth.vc_mtx);
|
|
return (i);
|
|
}
|
|
mtx_unlock(&md->synth.vc_mtx);
|
|
|
|
return (-1);
|
|
}
|
|
|
|
static int
|
|
seq_allocvoice(sc_p scp, mididev_info *md, int chn, int note)
|
|
{
|
|
int voice;
|
|
u_short key;
|
|
|
|
mtx_assert(&scp->devinfo->flagqueue_mtx, MA_OWNED);
|
|
|
|
key = (chn << 8) | (note + 1);
|
|
|
|
mtx_unlock(&scp->devinfo->flagqueue_mtx);
|
|
if ((voice = md->synth.allocvoice(md, chn, note, &md->synth.alloc)) == -EAGAIN) {
|
|
mtx_lock(&scp->devinfo->flagqueue_mtx);
|
|
return (-EAGAIN);
|
|
}
|
|
mtx_lock(&scp->devinfo->flagqueue_mtx);
|
|
|
|
mtx_lock(&md->synth.vc_mtx);
|
|
md->synth.alloc.map[voice] = key;
|
|
md->synth.alloc.alloc_times[voice] = md->synth.alloc.timestamp++;
|
|
mtx_unlock(&md->synth.vc_mtx);
|
|
|
|
return (voice);
|
|
}
|
|
|
|
static int
|
|
seq_chncommon(sc_p scp, u_char *event)
|
|
{
|
|
int unit/*, i, val, key*/;
|
|
u_short w14;
|
|
u_char dev, cmd, chn, p1;
|
|
seqdev_info *sd;
|
|
mididev_info *md;
|
|
|
|
dev = event[1];
|
|
cmd = event[2];
|
|
chn = event[3];
|
|
p1 = event[4];
|
|
w14 = *(u_short *)&event[6];
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
if (lookup_mididev(scp, dev, LOOKUP_OPEN, &md) != 0)
|
|
return (MORE);
|
|
|
|
switch (cmd) {
|
|
case MIDI_PGM_CHANGE:
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2) {
|
|
mtx_lock(&md->synth.vc_mtx);
|
|
md->synth.chn_info[chn].pgm_num = p1;
|
|
mtx_unlock(&md->synth.vc_mtx);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.setinstr(md, chn, p1) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
} else {
|
|
#endif /* notyet */
|
|
/* For Mode 1. */
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.setinstr(md, chn, p1) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
#if notyet
|
|
}
|
|
#endif /* notyet */
|
|
break;
|
|
case MIDI_CTL_CHANGE:
|
|
/* mtx_lock(&md->giant); */
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2) {
|
|
if (chn < 16 && p1 < 128) {
|
|
mtx_lock(&md->synth.vc_mtx);
|
|
md->synth.chn_info[chn].controllers[p1] = w14 & 0x7f;
|
|
if (p1 < 32)
|
|
/* We have set the MSB, clear the LSB. */
|
|
md->synth.chn_info[chn].controllers[p1 + 32] = 0;
|
|
val = w14 & 0x7f;
|
|
if (p1 < 64) {
|
|
/* Combine the MSB and the LSB. */
|
|
val = ((md->synth.chn_info[chn].controllers[p1 & ~32] & 0x7f) << 7)
|
|
| (md->synth.chn_info[chn].controllers[p1 | 32] & 0x7f);
|
|
p1 &= ~32;
|
|
}
|
|
/* Handle all of the notes playing on this channel. */
|
|
key = ((int)chn << 8);
|
|
for (i = 0 ; i < md->synth.alloc.max_voice ; i++)
|
|
if ((md->synth.alloc.map[i] & 0xff00) == key) {
|
|
mtx_unlock(&md->synth.vc_mtx);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.controller(md, i, p1, val) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
mtx_lock(&md->synth.vc_mtx);
|
|
}
|
|
mtx_unlock(&md->synth.vc_mtx);
|
|
}
|
|
} else {
|
|
#endif /* notyet */
|
|
/* For Mode 1. */
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.controller(md, chn, p1, w14) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
#if notyet
|
|
}
|
|
#endif /* notyet */
|
|
break;
|
|
case MIDI_PITCH_BEND:
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2) {
|
|
mtx_lock(&md->synth.vc_mtx);
|
|
md->synth.chn_info[chn].bender_value = w14;
|
|
/* Handle all of the notes playing on this channel. */
|
|
key = ((int)chn << 8);
|
|
for (i = 0 ; i < md->synth.alloc.max_voice ; i++)
|
|
if ((md->synth.alloc.map[i] & 0xff00) == key) {
|
|
mtx_unlock(&md->synth.vc_mtx);
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.bender(md, i, w14) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
mtx_lock(&md->synth.vc_mtx);
|
|
}
|
|
mtx_unlock(&md->synth.vc_mtx);
|
|
} else {
|
|
#endif /* notyet */
|
|
/* For Mode 1. */
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.bender(md, chn, w14) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
#if notyet
|
|
}
|
|
#endif /* notyet */
|
|
break;
|
|
}
|
|
|
|
return (MORE);
|
|
}
|
|
|
|
static int
|
|
seq_timing(sc_p scp, u_char *event)
|
|
{
|
|
int unit/*, ret*/;
|
|
long parm;
|
|
seqdev_info *sd;
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
parm = *(long *)&event[4];
|
|
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2 && (ret = tmr->event(tmr_no, event)) == TIMERARMED)
|
|
return (ret);
|
|
#endif /* notyet */
|
|
switch (event[1]) {
|
|
case TMR_WAIT_REL:
|
|
case TMR_WAIT_ABS:
|
|
if (event[1] == TMR_WAIT_REL)
|
|
parm += scp->prev_event_time;
|
|
if (parm > 0) {
|
|
sd->flags |= SEQ_F_WRITING;
|
|
if (seq_requesttimer(scp, parm))
|
|
return (TIMERARMED);
|
|
}
|
|
break;
|
|
case TMR_START:
|
|
scp->seq_time = seq_gettime();
|
|
scp->prev_input_time = 0;
|
|
scp->prev_event_time = 0;
|
|
scp->prev_wakeup_time = scp->seq_time;
|
|
break;
|
|
case TMR_STOP:
|
|
break;
|
|
case TMR_CONTINUE:
|
|
break;
|
|
case TMR_TEMPO:
|
|
break;
|
|
case TMR_ECHO:
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2)
|
|
seq_copytoinput(scp, event, 8);
|
|
else {
|
|
#endif /* notyet */
|
|
parm = (parm << 8 | SEQ_ECHO);
|
|
seq_copytoinput(scp, (u_char *)&parm, 4);
|
|
#if notyet
|
|
}
|
|
#endif /* notyet */
|
|
break;
|
|
}
|
|
|
|
return (MORE);
|
|
}
|
|
|
|
static int
|
|
seq_local(sc_p scp, u_char *event)
|
|
{
|
|
int unit;
|
|
seqdev_info *sd;
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
switch (event[1]) {
|
|
case LOCL_STARTAUDIO:
|
|
#if notyet
|
|
DMAbuf_start_devices(*(u_int *)&event[4]);
|
|
#endif /* notyet */
|
|
break;
|
|
}
|
|
|
|
return (MORE);
|
|
}
|
|
|
|
static int
|
|
seq_sysex(sc_p scp, u_char *event)
|
|
{
|
|
int unit, i, l;
|
|
seqdev_info *sd;
|
|
mididev_info *md;
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
if (lookup_mididev(scp, event[1], LOOKUP_OPEN, &md) != 0)
|
|
return (MORE);
|
|
|
|
l = 0;
|
|
for (i = 0 ; i < 6 && event[i + 2] != 0xff ; i++)
|
|
l = i + 1;
|
|
if (l > 0) {
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
if (md->synth.sendsysex(md, &event[2], l) == EAGAIN) {
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
return (QUEUEFULL);
|
|
}
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
}
|
|
|
|
return (MORE);
|
|
}
|
|
|
|
static void
|
|
seq_timer(void *arg)
|
|
{
|
|
sc_p scp;
|
|
seqdev_info *sd;
|
|
|
|
scp = arg;
|
|
sd = scp->devinfo;
|
|
|
|
/*DEB(printf("seq_timer: timer fired.\n"));*/
|
|
|
|
/* Record the current timestamp. */
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
|
|
scp->timer_running = 0;
|
|
scp->prev_wakeup_time = seq_gettime();
|
|
seq_startplay(scp);
|
|
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
}
|
|
|
|
static int
|
|
seq_openmidi(sc_p scp, mididev_info *md, int flags, int mode, struct proc *p)
|
|
{
|
|
int midiunit, err, insync;
|
|
|
|
mtx_assert(&scp->devinfo->flagqueue_mtx, MA_OWNED);
|
|
|
|
midiunit = md->unit;
|
|
|
|
DEB(printf("seq_openmidi: opening midi unit %d.\n", midiunit));
|
|
|
|
err = midi_open(MIDIMKDEV(MIDI_CDEV_MAJOR, midiunit, SND_DEV_MIDIN), flags, mode, p);
|
|
if (err != 0) {
|
|
printf("seq_openmidi: failed to open midi device %d.\n", midiunit);
|
|
return (err);
|
|
}
|
|
mtx_lock(&md->synth.status_mtx);
|
|
mtx_lock(&md->flagqueue_mtx);
|
|
md->intr = seq_intr;
|
|
md->intrarg = scp->devinfo;
|
|
mtx_unlock(&md->flagqueue_mtx);
|
|
md->synth.sysex_state = 0;
|
|
mtx_unlock(&md->synth.status_mtx);
|
|
|
|
insync = 0;
|
|
if ((scp->devinfo->flags & SEQ_F_INSYNC) != 0) {
|
|
insync = 1;
|
|
cv_wait(&scp->devinfo->insync_cv, &scp->devinfo->flagqueue_mtx);
|
|
}
|
|
|
|
TAILQ_INSERT_TAIL(&scp->midi_open, md, md_linkseq);
|
|
|
|
if (insync)
|
|
cv_signal(&scp->devinfo->insync_cv);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
seq_closemidi(sc_p scp, mididev_info *md, int flags, int mode, struct proc *p)
|
|
{
|
|
int midiunit, insync;
|
|
|
|
mtx_assert(&scp->devinfo->flagqueue_mtx, MA_OWNED);
|
|
|
|
if (md == NULL || !MIDICONFED(md)) {
|
|
DEB(printf("seq_closemidi: midi device does not exist.\n"));
|
|
return (ENXIO);
|
|
}
|
|
midiunit = md->unit;
|
|
|
|
DEB(printf("seq_closemidi: closing midi unit %d.\n", midiunit));
|
|
|
|
midi_close(MIDIMKDEV(MIDI_CDEV_MAJOR, midiunit, SND_DEV_MIDIN), flags, mode, p);
|
|
mtx_lock(&md->flagqueue_mtx);
|
|
md->intr = NULL;
|
|
md->intrarg = NULL;
|
|
mtx_unlock(&md->flagqueue_mtx);
|
|
|
|
insync = 0;
|
|
if ((scp->devinfo->flags & SEQ_F_INSYNC) != 0) {
|
|
insync = 1;
|
|
cv_wait(&scp->devinfo->insync_cv, &scp->devinfo->flagqueue_mtx);
|
|
}
|
|
|
|
TAILQ_REMOVE(&scp->midi_open, md, md_linkseq);
|
|
|
|
if (insync)
|
|
cv_signal(&scp->devinfo->insync_cv);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
seq_panic(sc_p scp)
|
|
{
|
|
mtx_assert(&scp->devinfo->flagqueue_mtx, MA_OWNED);
|
|
|
|
seq_reset(scp);
|
|
}
|
|
|
|
static int
|
|
seq_reset(sc_p scp)
|
|
{
|
|
int unit, chn;
|
|
seqdev_info *sd;
|
|
mididev_info *md;
|
|
u_char c[3];
|
|
|
|
sd = scp->devinfo;
|
|
unit = sd->unit;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
if ((sd->flags & SEQ_F_INSYNC) != 0) {
|
|
cv_wait(&sd->insync_cv, &sd->flagqueue_mtx);
|
|
cv_signal(&sd->insync_cv);
|
|
}
|
|
|
|
/* Stop reading and writing. */
|
|
sd->callback(sd, SEQ_CB_ABORT | SEQ_CB_RD | SEQ_CB_WR);
|
|
|
|
/* Clear the queues. */
|
|
midibuf_clear(&sd->midi_dbuf_in);
|
|
midibuf_clear(&sd->midi_dbuf_out);
|
|
|
|
#if notyet
|
|
/* Reset the synthesizers. */
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq)
|
|
md->synth.reset(md);
|
|
#endif /* notyet */
|
|
|
|
#if notyet
|
|
if (scp->seq_mode == SEQ_2) {
|
|
for (chn = 0 ; chn < 16 ; chn++) {
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq) {
|
|
if (md->synth.controller(md, chn, 123, 0) == EAGAIN /* All notes off. */
|
|
|| md->synth.controller(md, chn, 121, 0) == EAGAIN /* Reset all controllers. */
|
|
|| md->synth.bender(md, chn, 1 << 13) == EAGAIN) /* Reset pitch bend. */
|
|
return (EAGAIN);
|
|
}
|
|
}
|
|
} else {
|
|
#endif /* notyet */
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq) {
|
|
for (chn = 0 ; chn < 16 ; chn++) {
|
|
c[0] = 0xb0 | (chn & 0x0f);
|
|
c[1] = (u_char)0x78; /* All sound off */
|
|
c[2] = (u_char)0;
|
|
md->synth.writeraw(md, c, 3, 0);
|
|
c[1] = (u_char)0x7b; /* All note off */
|
|
md->synth.writeraw(md, c, 3, 0);
|
|
c[1] = (u_char)0x79; /* Reset all controller */
|
|
md->synth.writeraw(md, c, 3, 0);
|
|
}
|
|
}
|
|
seq_sync(scp);
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq)
|
|
lookup_mididev(scp, md->unit, LOOKUP_CLOSE, NULL);
|
|
#if notyet
|
|
}
|
|
#endif /* notyet */
|
|
|
|
return (0);
|
|
}
|
|
|
|
#define SEQ_SYNC_TIMEOUT 8
|
|
static int
|
|
seq_sync(sc_p scp)
|
|
{
|
|
int i, rl;
|
|
seqdev_info *sd;
|
|
mididev_info *md;
|
|
|
|
sd = scp->devinfo;
|
|
|
|
mtx_assert(&sd->flagqueue_mtx, MA_OWNED);
|
|
|
|
sd->flags |= SEQ_F_INSYNC;
|
|
|
|
while (sd->midi_dbuf_out.rl >= EV_SZ) {
|
|
if ((sd->flags & SEQ_F_WRITING) == 0)
|
|
sd->callback(sd, SEQ_CB_START | SEQ_CB_WR);
|
|
rl = sd->midi_dbuf_out.rl;
|
|
i = msleep(&sd->midi_dbuf_out.tsleep_out, &sd->flagqueue_mtx, PRIBIO | PCATCH, "seqsnc", SEQ_SYNC_TIMEOUT * hz);
|
|
if (i == EINTR || i == ERESTART) {
|
|
if (i == EINTR)
|
|
sd->callback(sd, SEQ_CB_STOP | SEQ_CB_WR);
|
|
sd->flags &= ~SEQ_F_INSYNC;
|
|
return (i);
|
|
}
|
|
if (i == EWOULDBLOCK && rl == sd->midi_dbuf_out.rl && !scp->timer_running) {
|
|
/* A queue seems to be stuck up. Give up and clear queues. */
|
|
sd->callback(sd, SEQ_CB_STOP | SEQ_CB_WR);
|
|
midibuf_clear(&sd->midi_dbuf_out);
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq) {
|
|
mtx_lock(&md->flagqueue_mtx);
|
|
md->callback(md, MIDI_CB_ABORT | MIDI_CB_WR);
|
|
midibuf_clear(&md->midi_dbuf_out);
|
|
mtx_unlock(&md->flagqueue_mtx);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Since syncing a midi device might block, unlock sd->flagqueue_mtx.
|
|
* Keep sd->midi_dbuf_out from writing by setting SEQ_F_INSYNC.
|
|
* sd->insync_cv is signalled when sync is finished.
|
|
*/
|
|
mtx_unlock(&sd->flagqueue_mtx);
|
|
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq) {
|
|
mtx_lock(&md->flagqueue_mtx);
|
|
midi_sync(md);
|
|
mtx_unlock(&md->flagqueue_mtx);
|
|
}
|
|
|
|
mtx_lock(&sd->flagqueue_mtx);
|
|
sd->flags &= ~SEQ_F_INSYNC;
|
|
cv_signal(&sd->insync_cv);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* a small utility function which, given a device number, returns
|
|
* a pointer to the associated seqdev_info struct, and sets the unit
|
|
* number.
|
|
*/
|
|
static seqdev_info *
|
|
get_seqdev_info(dev_t i_dev, int *unit)
|
|
{
|
|
int u;
|
|
|
|
if (MIDIDEV(i_dev) != SND_DEV_SEQ && MIDIDEV(i_dev) != SND_DEV_SEQ2)
|
|
return NULL;
|
|
u = MIDIUNIT(i_dev);
|
|
if (unit)
|
|
*unit = u ;
|
|
|
|
return get_seqdev_info_unit(u);
|
|
}
|
|
|
|
/*
|
|
* a small utility function which, given a unit number, returns
|
|
* a pointer to the associated mididev_info struct.
|
|
*/
|
|
seqdev_info *
|
|
get_seqdev_info_unit(int unit)
|
|
{
|
|
seqdev_info *sd;
|
|
|
|
mtx_lock(&seqinfo_mtx);
|
|
TAILQ_FOREACH(sd, &seq_info, sd_link) {
|
|
if (sd->unit == unit)
|
|
break;
|
|
}
|
|
mtx_unlock(&seqinfo_mtx);
|
|
|
|
return sd;
|
|
}
|
|
|
|
/* Create a new sequencer device info structure. */
|
|
seqdev_info *
|
|
create_seqdev_info_unit(int unit, seqdev_info *seq)
|
|
{
|
|
seqdev_info *sd, *sdnew;
|
|
|
|
/* As malloc(9) might block, allocate seqdev_info now. */
|
|
sdnew = malloc(sizeof(seqdev_info), M_DEVBUF, M_WAITOK | M_ZERO);
|
|
if (sdnew == NULL)
|
|
return NULL;
|
|
bcopy(seq, sdnew, sizeof(seqdev_info));
|
|
sdnew->unit = unit;
|
|
midibuf_init(&sdnew->midi_dbuf_in);
|
|
midibuf_init(&sdnew->midi_dbuf_out);
|
|
mtx_init(&sdnew->flagqueue_mtx, "seqflq", MTX_DEF);
|
|
cv_init(&sdnew->insync_cv, "seqins");
|
|
|
|
mtx_lock(&seqinfo_mtx);
|
|
|
|
TAILQ_FOREACH(sd, &seq_info, sd_link) {
|
|
if (sd->unit == unit) {
|
|
mtx_unlock(&seqinfo_mtx);
|
|
midibuf_destroy(&sdnew->midi_dbuf_in);
|
|
midibuf_destroy(&sdnew->midi_dbuf_out);
|
|
mtx_destroy(&sdnew->flagqueue_mtx);
|
|
cv_destroy(&sdnew->insync_cv);
|
|
free(sdnew, M_DEVBUF);
|
|
return sd;
|
|
}
|
|
}
|
|
|
|
mtx_lock(&sdnew->flagqueue_mtx);
|
|
TAILQ_INSERT_TAIL(&seq_info, sdnew, sd_link);
|
|
nseq++;
|
|
|
|
mtx_unlock(&seqinfo_mtx);
|
|
|
|
return sdnew;
|
|
}
|
|
|
|
/*
|
|
* Look up a midi device by its unit number opened by this sequencer.
|
|
* If the device is not opened and mode is LOOKUP_OPEN, open the device.
|
|
*/
|
|
static int
|
|
lookup_mididev(sc_p scp, int unit, int mode, mididev_info **mdp)
|
|
{
|
|
int ret;
|
|
mididev_info *md;
|
|
|
|
if (mdp == NULL)
|
|
mdp = &md;
|
|
|
|
*mdp = NULL;
|
|
|
|
mtx_assert(&scp->devinfo->flagqueue_mtx, MA_OWNED);
|
|
|
|
TAILQ_FOREACH(md, &scp->midi_open, md_linkseq) {
|
|
if (md->unit == unit) {
|
|
*mdp = md;
|
|
if (mode == LOOKUP_CLOSE)
|
|
return seq_closemidi(scp, md, scp->fflags, MIDIDEV_MODE, curproc);
|
|
|
|
return (md != NULL && MIDICONFED(md)) ? 0 : ENXIO;
|
|
}
|
|
}
|
|
|
|
if (mode == LOOKUP_OPEN) {
|
|
md = get_mididev_info_unit(unit);
|
|
if (md != NULL) {
|
|
*mdp = md;
|
|
ret = seq_openmidi(scp, md, scp->fflags, MIDIDEV_MODE, curproc);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return ENXIO;
|
|
}
|
|
|
|
/* XXX These functions are actually redundant. */
|
|
static int
|
|
seqopen(dev_t i_dev, int flags, int mode, struct proc * p)
|
|
{
|
|
switch (MIDIDEV(i_dev)) {
|
|
case MIDI_DEV_SEQ:
|
|
return seq_open(i_dev, flags, mode, p);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
seqclose(dev_t i_dev, int flags, int mode, struct proc * p)
|
|
{
|
|
switch (MIDIDEV(i_dev)) {
|
|
case MIDI_DEV_SEQ:
|
|
return seq_close(i_dev, flags, mode, p);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
seqread(dev_t i_dev, struct uio * buf, int flag)
|
|
{
|
|
switch (MIDIDEV(i_dev)) {
|
|
case MIDI_DEV_SEQ:
|
|
return seq_read(i_dev, buf, flag);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
seqwrite(dev_t i_dev, struct uio * buf, int flag)
|
|
{
|
|
switch (MIDIDEV(i_dev)) {
|
|
case MIDI_DEV_SEQ:
|
|
return seq_write(i_dev, buf, flag);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
seqioctl(dev_t i_dev, u_long cmd, caddr_t arg, int mode, struct proc * p)
|
|
{
|
|
switch (MIDIDEV(i_dev)) {
|
|
case MIDI_DEV_SEQ:
|
|
return seq_ioctl(i_dev, cmd, arg, mode, p);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
seqpoll(dev_t i_dev, int events, struct proc * p)
|
|
{
|
|
switch (MIDIDEV(i_dev)) {
|
|
case MIDI_DEV_SEQ:
|
|
return seq_poll(i_dev, events, p);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
seq_modevent(module_t mod, int type, void *data)
|
|
{
|
|
int retval;
|
|
|
|
retval = 0;
|
|
|
|
switch (type) {
|
|
case MOD_LOAD:
|
|
seq_init();
|
|
break;
|
|
|
|
case MOD_UNLOAD:
|
|
printf("sequencer: unload not supported yet.\n");
|
|
retval = EOPNOTSUPP;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
DEV_MODULE(seq, seq_modevent, NULL);
|
|
|
|
static void
|
|
seq_clone(arg, name, namelen, dev)
|
|
void *arg;
|
|
char *name;
|
|
int namelen;
|
|
dev_t *dev;
|
|
{
|
|
int u;
|
|
|
|
if (*dev != NODEV)
|
|
return;
|
|
if (bcmp(name, "sequencer", 9) != 0)
|
|
return;
|
|
if (name[10] != '\0' && name[11] != '\0')
|
|
return;
|
|
u = name[9] - '0';
|
|
if (name[10] != '\0') {
|
|
u *= 10;
|
|
u += name[10] - '0';
|
|
}
|
|
seq_initunit(u);
|
|
*dev = MIDIMKDEV(SEQ_CDEV_MAJOR, u, MIDI_DEV_SEQ);
|
|
return;
|
|
}
|