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/* $OpenBSD: ac97.h,v 1.4 2000/07/19 09:01:35 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);
enum ac97_host_flags {
AC97_HOST_DONT_READ = 0x1
};
enum ac97_host_flags (*flags)(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);
/* The AC97 codec driver records the various port settings. This
function can be used to restore the port settings, e.g.
after resume from a laptop suspend to disk.
*/
void (*restore_ports)(struct ac97_codec_if *addr);
};
struct ac97_codec_if {
struct ac97_codec_if_vtbl *vtbl;
};
int ac97_attach __P((struct ac97_host_if *));
#define AC97_REG_RESET 0x00
#define AC97_SOUND_ENHANCEMENT(reg) (((reg) >> 10) & 0x1f)
#define AC97_REG_MASTER_VOLUME 0x02
#define AC97_REG_HEADPHONE_VOLUME 0x04
#define AC97_REG_MASTER_VOLUME_MONO 0x06
#define AC97_REG_MASTER_TONE 0x08
#define AC97_REG_PCBEEP_VOLUME 0x0a
#define AC97_REG_PHONE_VOLUME 0x0c
#define AC97_REG_MIC_VOLUME 0x0e
#define AC97_REG_LINEIN_VOLUME 0x10
#define AC97_REG_CD_VOLUME 0x12
#define AC97_REG_VIDEO_VOLUME 0x14
#define AC97_REG_AUX_VOLUME 0x16
#define AC97_REG_PCMOUT_VOLUME 0x18
#define AC97_REG_RECORD_SELECT 0x1a
#define AC97_REG_RECORD_GAIN 0x1c
#define AC97_REG_RECORD_GAIN_MIC 0x1e
#define AC97_REG_GP 0x20
#define AC97_REG_3D_CONTROL 0x22
#define AC97_REG_POWER 0x26
#define AC97_REG_VENDOR_ID1 0x7c
#define AC97_REG_VENDOR_ID2 0x7e
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