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ALSA: ac97: add an ac97 bus

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AC97 is a bus for sound usage. It enables for a AC97 AC-Link to link one
controller to 0 to 4 AC97 codecs.

The goal of this new implementation is to implement a device/driver
model for AC97, with an automatic scan of the bus and automatic
discovery of AC97 codec devices.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Robert Jarzmik
2017-09-02 21:54:04 +02:00
committed by Mark Brown
parent 8e4f7d9b8c
commit 74426fbff6
9 changed files with 928 additions and 0 deletions
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include/sound/ac97/compat.h Normal file
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/*
* Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This file is for backward compatibility with snd_ac97 structure and its
* multiple usages, such as the snd_ac97_bus and snd_ac97_build_ops.
*
*/
#ifndef AC97_COMPAT_H
#define AC97_COMPAT_H
#include <sound/ac97_codec.h>
struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev);
void snd_ac97_compat_release(struct snd_ac97 *ac97);
#endif