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      1 /* $NetBSD: audiodev.h,v 1.9 2019/08/24 07:39:42 isaki Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2010 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _HAVE_AUDIODEV_H
     30 #define _HAVE_AUDIODEV_H
     31 
     32 #include <sys/audioio.h>
     33 #include <sys/queue.h>
     34 #include <sys/syslimits.h>
     35 
     36 #include <stdbool.h>
     37 
     38 struct audiofmt {
     39 	struct audio_format fmt;
     40 	TAILQ_ENTRY(audiofmt) next;
     41 };
     42 
     43 struct audiodev {
     44 	char pxname[16];	/* hw (parent) device */
     45 	char xname[16];		/* audio(4) device */
     46 	uint16_t unit;
     47 	char path[PATH_MAX+1];
     48 	char ctlpath[PATH_MAX+1];
     49 	int fd;
     50 	int ctlfd;
     51 
     52 	dev_t dev;
     53 	bool defaultdev;
     54 
     55 	audio_device_t audio_device;
     56 	TAILQ_HEAD(, audiofmt) formats;
     57 	audio_info_t hwinfo;
     58 
     59 	TAILQ_ENTRY(audiodev) next;
     60 };
     61 
     62 int			audiodev_refresh(void);
     63 unsigned int		audiodev_count(void);
     64 struct audiodev *	audiodev_get(unsigned int);
     65 int			audiodev_set_default(struct audiodev *);
     66 int			audiodev_set_param(struct audiodev *, int,
     67 				const char *, unsigned int, unsigned int,
     68 				unsigned int);
     69 int			audiodev_test(struct audiodev *);
     70 
     71 extern const char *	encoding_names[];
     72 extern u_int		encoding_max;
     73 
     74 #endif /* !_HAVE_AUDIODEV_H */
     75