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/* $OpenBSD: ac97.h,v 1.2 1999/09/21 16:06:28 csapuntz Exp $ */
/*
* Copyright (c) 1999 Constantine Sapuntzakis
*
* Author: Constantine Sapuntzakis <csapuntz@stanford.edu>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY CONSTANTINE SAPUNTZAKIS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
struct ac97_codec_if;
/*
* This is the interface used to attach the AC97 compliant CODEC.
*/
struct ac97_host_if {
void *arg;
int (*attach)(void *arg, struct ac97_codec_if *codecif);
int (*read)(void *arg, u_int8_t reg, u_int16_t *val);
int (*write)(void *arg, u_int8_t reg, u_int16_t val);
void (*reset)(void *arg);
};
/*
* This is the interface exported by the AC97 compliant CODEC
*/
struct ac97_codec_if_vtbl {
int (*mixer_get_port)(struct ac97_codec_if *addr, mixer_ctrl_t *cp);
int (*mixer_set_port)(struct ac97_codec_if *addr, mixer_ctrl_t *cp);
int (*query_devinfo)(struct ac97_codec_if *addr, mixer_devinfo_t *cp);
int (*get_portnum_by_name)(struct ac97_codec_if *addr,
char *class, char *device,
char *qualifier);
};
struct ac97_codec_if {
struct ac97_codec_if_vtbl *vtbl;
};
int ac97_attach __P((struct ac97_host_if *));
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