/*      $OpenBSD: defs.h,v 1.5 2020/02/26 13:53:58 ratchov Exp $        */
/*
 * 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.
 */
#ifndef DEFS_H
#define DEFS_H

/*
 * MIDI buffer size
 */
#define MIDI_BUFSZ              3125    /* 1 second at 31.25kbit/s */

/*
 * units used for MTC clock. Must allow a quarter of frame to be
 * represented at any of the standard 24, 25, or 30 fps.
 */
#define MTC_SEC                 2400    /* 1 second is 2400 ticks */

/*
 * device or sub-device mode, must be a superset of corresponding SIO_
 * and MIO_ constants
 */
#define MODE_PLAY       0x01    /* allowed to play */
#define MODE_REC        0x02    /* allowed to rec */
#define MODE_MIDIOUT    0x04    /* allowed to read midi */
#define MODE_MIDIIN     0x08    /* allowed to write midi */
#define MODE_MON        0x10    /* allowed to monitor */
#define MODE_CTLREAD    0x100   /* allowed to read controls */
#define MODE_CTLWRITE   0x200   /* allowed to change controls */
#define MODE_RECMASK    (MODE_REC | MODE_MON)
#define MODE_AUDIOMASK  (MODE_PLAY | MODE_REC | MODE_MON)
#define MODE_MIDIMASK   (MODE_MIDIIN | MODE_MIDIOUT)
#define MODE_CTLMASK    (MODE_CTLREAD | MODE_CTLWRITE)

/*
 * underrun/overrun policies, must be the same as SIO_ constants
 */
#define XRUN_IGNORE     0       /* on xrun silently insert/discard samples */
#define XRUN_SYNC       1       /* catchup to sync to the mix/sub */
#define XRUN_ERROR      2       /* xruns are errors, eof/hup buffer */

/*
 * limits
 */
#define NCHAN_MAX       64              /* max channel in a stream */
#define RATE_MIN        4000            /* min sample rate */
#define RATE_MAX        192000          /* max sample rate */
#define BITS_MIN        1               /* min bits per sample */
#define BITS_MAX        32              /* max bits per sample */

#endif /* !defined(DEFS_H) */