74426fbff6
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>
17 lines
495 B
C
17 lines
495 B
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
unsigned int snd_ac97_bus_scan_one(struct ac97_controller *ac97,
|
|
unsigned int codec_num);
|
|
|
|
static inline bool ac97_ids_match(unsigned int id1, unsigned int id2,
|
|
unsigned int mask)
|
|
{
|
|
return (id1 & mask) == (id2 & mask);
|
|
}
|