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862c2c0a61
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>
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright 2003 Vivien Chappelier <vivien.chappelier@linux-mips.org>
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* Copyright 2008 Thomas Bogendoerfer <tsbogend@franken.de>
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*/
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#ifndef __SOUND_AD1843_H
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#define __SOUND_AD1843_H
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struct snd_ad1843 {
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void *chip;
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int (*read)(void *chip, int reg);
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int (*write)(void *chip, int reg, int val);
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};
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#define AD1843_GAIN_RECLEV 0
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#define AD1843_GAIN_LINE 1
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#define AD1843_GAIN_LINE_2 2
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#define AD1843_GAIN_MIC 3
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#define AD1843_GAIN_PCM_0 4
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#define AD1843_GAIN_PCM_1 5
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#define AD1843_GAIN_SIZE (AD1843_GAIN_PCM_1+1)
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int ad1843_get_gain_max(struct snd_ad1843 *ad1843, int id);
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int ad1843_get_gain(struct snd_ad1843 *ad1843, int id);
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int ad1843_set_gain(struct snd_ad1843 *ad1843, int id, int newval);
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int ad1843_get_recsrc(struct snd_ad1843 *ad1843);
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int ad1843_set_recsrc(struct snd_ad1843 *ad1843, int newsrc);
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void ad1843_setup_dac(struct snd_ad1843 *ad1843,
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unsigned int id,
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unsigned int framerate,
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snd_pcm_format_t fmt,
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unsigned int channels);
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void ad1843_shutdown_dac(struct snd_ad1843 *ad1843,
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unsigned int id);
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void ad1843_setup_adc(struct snd_ad1843 *ad1843,
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unsigned int framerate,
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snd_pcm_format_t fmt,
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unsigned int channels);
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void ad1843_shutdown_adc(struct snd_ad1843 *ad1843);
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int ad1843_init(struct snd_ad1843 *ad1843);
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#endif /* __SOUND_AD1843_H */
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