mirror of https://github.com/ericonr/sndio.git
133 lines
2.7 KiB
C
133 lines
2.7 KiB
C
/* $OpenBSD$ */
|
|
/*
|
|
* Copyright (c) 2008-2012 Alexandre Ratchov <alex@caoua.org>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <poll.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sndio.h>
|
|
#include "defs.h"
|
|
#include "file.h"
|
|
#include "midi.h"
|
|
#include "miofile.h"
|
|
#include "utils.h"
|
|
|
|
int port_mio_pollfd(void *, struct pollfd *);
|
|
int port_mio_revents(void *, struct pollfd *);
|
|
void port_mio_in(void *);
|
|
void port_mio_out(void *);
|
|
void port_mio_hup(void *);
|
|
|
|
struct fileops port_mio_ops = {
|
|
"mio",
|
|
port_mio_pollfd,
|
|
port_mio_revents,
|
|
port_mio_in,
|
|
port_mio_out,
|
|
port_mio_hup
|
|
};
|
|
|
|
int
|
|
port_mio_open(struct port *p)
|
|
{
|
|
p->mio.hdl = mio_open(p->path, p->midi->mode, 1);
|
|
if (p->mio.hdl == NULL)
|
|
return 0;
|
|
p->mio.file = file_new(&port_mio_ops, p, p->path, mio_nfds(p->mio.hdl));
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
port_mio_close(struct port *p)
|
|
{
|
|
file_del(p->mio.file);
|
|
mio_close(p->mio.hdl);
|
|
}
|
|
|
|
int
|
|
port_mio_pollfd(void *addr, struct pollfd *pfd)
|
|
{
|
|
struct port *p = addr;
|
|
struct midi *ep = p->midi;
|
|
int events = 0;
|
|
|
|
if (ep->mode & MODE_MIDIIN)
|
|
events |= POLLIN;
|
|
if ((ep->mode & MODE_MIDIOUT) && ep->obuf.used > 0)
|
|
events |= POLLOUT;
|
|
return mio_pollfd(p->mio.hdl, pfd, events);
|
|
}
|
|
|
|
int
|
|
port_mio_revents(void *addr, struct pollfd *pfd)
|
|
{
|
|
struct port *p = addr;
|
|
|
|
return mio_revents(p->mio.hdl, pfd);
|
|
}
|
|
|
|
void
|
|
port_mio_in(void *arg)
|
|
{
|
|
unsigned char data[MIDI_BUFSZ];
|
|
struct port *p = arg;
|
|
struct midi *ep = p->midi;
|
|
int n;
|
|
|
|
for (;;) {
|
|
n = mio_read(p->mio.hdl, data, MIDI_BUFSZ);
|
|
if (n == 0)
|
|
break;
|
|
midi_in(ep, data, n);
|
|
}
|
|
}
|
|
|
|
void
|
|
port_mio_out(void *arg)
|
|
{
|
|
struct port *p = arg;
|
|
struct midi *ep = p->midi;
|
|
unsigned char *data;
|
|
int n, count;
|
|
|
|
for (;;) {
|
|
data = abuf_rgetblk(&ep->obuf, &count);
|
|
if (count == 0)
|
|
break;
|
|
n = mio_write(p->mio.hdl, data, count);
|
|
if (n == 0)
|
|
break;
|
|
abuf_rdiscard(&ep->obuf, n);
|
|
if (n < count)
|
|
break;
|
|
}
|
|
if (p->state == PORT_DRAIN && ep->obuf.used == 0)
|
|
port_close(p);
|
|
midi_fill(ep);
|
|
}
|
|
|
|
void
|
|
port_mio_hup(void *arg)
|
|
{
|
|
struct port *p = arg;
|
|
|
|
port_close(p);
|
|
}
|