114 lines
4.0 KiB
C
114 lines
4.0 KiB
C
/* $NetBSD: ac97var.h,v 1.20 2007/02/21 22:59:59 thorpej Exp $ */
|
|
/* $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.
|
|
*/
|
|
|
|
#ifndef _DEV_IC_AC97VAR_H_
|
|
#define _DEV_IC_AC97VAR_H_
|
|
#include <sys/types.h>
|
|
|
|
struct ac97_codec_if;
|
|
|
|
/*
|
|
* This is the interface used to attach the AC97 compliant CODEC.
|
|
*/
|
|
enum ac97_host_flags {
|
|
AC97_HOST_DONT_READ = 0x1,
|
|
AC97_HOST_SWAPPED_CHANNELS = 0x2, /* l/r is reversed */
|
|
AC97_HOST_SKIP_AUDIO = 0x4,
|
|
AC97_HOST_SKIP_MODEM = 0x8,
|
|
AC97_HOST_INVERTED_EAMP = 0x10
|
|
};
|
|
|
|
struct ac97_host_if {
|
|
void *arg;
|
|
|
|
int (*attach)(void *, struct ac97_codec_if *);
|
|
int (*read)(void *, uint8_t, uint16_t *);
|
|
int (*write)(void *, uint8_t, uint16_t);
|
|
int (*reset)(void *);
|
|
|
|
enum ac97_host_flags (*flags)(void *);
|
|
void (*spdif_event)(void *, bool);
|
|
};
|
|
|
|
/*
|
|
* This is the interface exported by the AC97 compliant CODEC
|
|
*/
|
|
struct ac97_codec_if_vtbl {
|
|
int (*mixer_get_port)(struct ac97_codec_if *, mixer_ctrl_t *);
|
|
int (*mixer_set_port)(struct ac97_codec_if *, mixer_ctrl_t *);
|
|
int (*query_devinfo)(struct ac97_codec_if *, mixer_devinfo_t *);
|
|
int (*get_portnum_by_name)(struct ac97_codec_if *, const char *,
|
|
const char *, const char *);
|
|
/*
|
|
* 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.
|
|
* Also restores AC97_POWER_REG.
|
|
*/
|
|
void (*restore_ports)(struct ac97_codec_if *);
|
|
|
|
u_int16_t (*get_extcaps)(struct ac97_codec_if *);
|
|
int (*set_rate)(struct ac97_codec_if *, int, u_int *);
|
|
void (*set_clock)(struct ac97_codec_if *, unsigned int);
|
|
void (*detach)(struct ac97_codec_if *);
|
|
/**
|
|
* To enable SPDIF,
|
|
* - call unlock() just after ac97_attach()
|
|
* - call lock() in audio_hw_if::open()
|
|
* - call unlock() in audio_hw_if::close()
|
|
*/
|
|
void (*lock)(struct ac97_codec_if *);
|
|
void (*unlock)(struct ac97_codec_if *);
|
|
};
|
|
|
|
struct ac97_codec_if {
|
|
struct ac97_codec_if_vtbl *vtbl;
|
|
};
|
|
|
|
struct device;
|
|
int ac97_attach_type(struct ac97_host_if *, struct device *, int);
|
|
int ac97_attach(struct ac97_host_if *, struct device *);
|
|
|
|
#define AC97_IS_FIXED_RATE(codec) \
|
|
!((codec)->vtbl->get_extcaps(codec) & AC97_EXT_AUDIO_VRA)
|
|
#define AC97_IS_4CH(codec) \
|
|
((codec)->vtbl->get_extcaps(codec) & AC97_EXT_AUDIO_SDAC)
|
|
#define AC97_IS_6CH(codec) \
|
|
(((codec)->vtbl->get_extcaps(codec) \
|
|
& (AC97_EXT_AUDIO_SDAC | AC97_EXT_AUDIO_CDAC | AC97_EXT_AUDIO_LDAC)) \
|
|
== (AC97_EXT_AUDIO_SDAC | AC97_EXT_AUDIO_CDAC | AC97_EXT_AUDIO_LDAC))
|
|
#define AC97_HAS_SPDIF(codec) \
|
|
((codec)->vtbl->get_extcaps(codec) & AC97_EXT_AUDIO_SPDIF)
|
|
|
|
#define AC97_CODEC_TYPE_AUDIO 1
|
|
#define AC97_CODEC_TYPE_MODEM 2
|
|
|
|
#endif /* _DEV_IC_AC97VAR_H_ */
|