mirror of https://github.com/ericonr/sndio.git
128 lines
4.0 KiB
C
128 lines
4.0 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef DEV_H
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#define DEV_H
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#include "aparams.h"
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struct aproc;
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struct abuf;
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struct dev {
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struct dev *next;
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/*
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* desired parameters
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*/
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unsigned int reqmode; /* mode */
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struct aparams reqipar, reqopar; /* parameters */
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unsigned int reqbufsz; /* buffer size */
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unsigned int reqround; /* block size */
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unsigned int hold; /* hold the device open ? */
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unsigned int autovol; /* auto adjust playvol ? */
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unsigned int autostart; /* don't wait for MMC start */
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unsigned int refcnt; /* number of openers */
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#define DEV_NMAX 16 /* max number of devices */
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unsigned int num; /* serial number */
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#define DEV_CLOSED 0 /* closed */
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#define DEV_INIT 1 /* stopped */
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#define DEV_START 2 /* ready to start */
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#define DEV_RUN 3 /* started */
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unsigned int pstate; /* on of DEV_xxx */
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char *path; /* sio path */
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/*
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* actual parameters and runtime state (i.e. once opened)
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*/
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unsigned int mode; /* bitmap of MODE_xxx */
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unsigned int bufsz, round, rate;
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struct aparams ipar, opar;
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struct aproc *mix, *sub, *submon;
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struct aproc *rec, *play, *mon;
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struct aproc *midi;
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struct devctl {
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struct devctl *next;
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unsigned int mode;
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char *path;
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} *ctl_list;
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/* volume control and MMC/MTC */
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#define CTL_NSLOT 8
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#define CTL_NAMEMAX 8
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unsigned int serial;
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struct ctl_slot {
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struct ctl_ops {
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void (*vol)(void *, unsigned int);
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void (*start)(void *);
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void (*stop)(void *);
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void (*loc)(void *, unsigned int);
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void (*quit)(void *);
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} *ops;
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void *arg;
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unsigned int unit;
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char name[CTL_NAMEMAX];
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unsigned int serial;
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unsigned int vol;
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unsigned int tstate;
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} slot[CTL_NSLOT];
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#define CTL_OFF 0 /* ignore MMC messages */
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#define CTL_STOP 1 /* stopped, can't start */
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#define CTL_START 2 /* attempting to start */
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#define CTL_RUN 3 /* started */
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unsigned int tstate; /* one of above */
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unsigned int origin; /* MTC start time */
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unsigned int master; /* master volume controller */
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};
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extern struct dev *dev_list;
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void dev_dbg(struct dev *);
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int dev_init(struct dev *);
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int dev_run(struct dev *);
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int dev_ref(struct dev *);
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void dev_unref(struct dev *);
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void dev_del(struct dev *);
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void dev_wakeup(struct dev *);
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void dev_drain(struct dev *);
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struct dev *dev_new(char *, unsigned int, unsigned int,
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unsigned int, unsigned int, unsigned int);
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void dev_adjpar(struct dev *, unsigned int,
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struct aparams *, struct aparams *);
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int devctl_add(struct dev *, char *, unsigned int);
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void dev_midiattach(struct dev *, struct abuf *, struct abuf *);
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unsigned int dev_roundof(struct dev *, unsigned int);
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int dev_getpos(struct dev *);
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void dev_attach(struct dev *, char *, unsigned int,
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struct abuf *, struct aparams *, unsigned int,
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struct abuf *, struct aparams *, unsigned int,
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unsigned int, int);
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void dev_setvol(struct dev *, struct abuf *, int);
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void dev_slotdbg(struct dev *, int);
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int dev_slotnew(struct dev *, char *, struct ctl_ops *, void *, int);
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void dev_slotdel(struct dev *, int);
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void dev_slotvol(struct dev *, int, unsigned int);
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int dev_slotstart(struct dev *, int);
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void dev_slotstop(struct dev *, int);
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void dev_mmcstart(struct dev *);
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void dev_mmcstop(struct dev *);
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void dev_loc(struct dev *, unsigned int);
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void dev_master(struct dev *, unsigned int);
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#endif /* !define(DEV_H) */
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