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ALSA: ALSA driver for SGI O2 audio board

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This patch adds a new ALSA driver for the audio device found inside
most of the SGI O2 workstation. The hardware uses a SGI custom chip,
which feeds a AD codec chip.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Thomas Bogendoerfer
2008-07-12 22:43:50 +02:00
committed by Jaroslav Kysela
parent 1e066322c2
commit 862c2c0a61
5 changed files with 1621 additions and 0 deletions
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46
include/sound/ad1843.h Normal file
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright 2003 Vivien Chappelier <vivien.chappelier@linux-mips.org>
* Copyright 2008 Thomas Bogendoerfer <tsbogend@franken.de>
*/
#ifndef __SOUND_AD1843_H
#define __SOUND_AD1843_H
struct snd_ad1843 {
void *chip;
int (*read)(void *chip, int reg);
int (*write)(void *chip, int reg, int val);
};
#define AD1843_GAIN_RECLEV 0
#define AD1843_GAIN_LINE 1
#define AD1843_GAIN_LINE_2 2
#define AD1843_GAIN_MIC 3
#define AD1843_GAIN_PCM_0 4
#define AD1843_GAIN_PCM_1 5
#define AD1843_GAIN_SIZE (AD1843_GAIN_PCM_1+1)
int ad1843_get_gain_max(struct snd_ad1843 *ad1843, int id);
int ad1843_get_gain(struct snd_ad1843 *ad1843, int id);
int ad1843_set_gain(struct snd_ad1843 *ad1843, int id, int newval);
int ad1843_get_recsrc(struct snd_ad1843 *ad1843);
int ad1843_set_recsrc(struct snd_ad1843 *ad1843, int newsrc);
void ad1843_setup_dac(struct snd_ad1843 *ad1843,
unsigned int id,
unsigned int framerate,
snd_pcm_format_t fmt,
unsigned int channels);
void ad1843_shutdown_dac(struct snd_ad1843 *ad1843,
unsigned int id);
void ad1843_setup_adc(struct snd_ad1843 *ad1843,
unsigned int framerate,
snd_pcm_format_t fmt,
unsigned int channels);
void ad1843_shutdown_adc(struct snd_ad1843 *ad1843);
int ad1843_init(struct snd_ad1843 *ad1843);
#endif /* __SOUND_AD1843_H */