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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/sound/ak4xxx-adda.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */

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#ifndef __SOUND_AK4XXX_ADDA_H

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#define __SOUND_AK4XXX_ADDA_H

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/*

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 *   ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4381

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 *   AD and DA converters

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 *

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 *	Copyright (c) 2000 Jaroslav Kysela <[email protected]>

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 */      

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#ifndef AK4XXX_MAX_CHIPS

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#define AK4XXX_MAX_CHIPS	4

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#endif

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struct snd_akm4xxx;

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struct snd_ak4xxx_ops {

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	void (*lock)(struct snd_akm4xxx *ak, int chip);

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	void (*unlock)(struct snd_akm4xxx *ak, int chip);

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	void (*write)(struct snd_akm4xxx *ak, int chip, unsigned char reg,

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		      unsigned char val);

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	void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate);

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};

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#define AK4XXX_IMAGE_SIZE	(AK4XXX_MAX_CHIPS * 16)	/* 64 bytes */

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/* DAC label and channels */

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struct snd_akm4xxx_dac_channel {

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	char *name;		/* mixer volume name */

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	unsigned int num_channels;

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	char *switch_name;		/* mixer switch*/

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};

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/* ADC labels and channels */

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struct snd_akm4xxx_adc_channel {

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	char *name;		/* capture gain volume label */

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	char *switch_name;	/* capture switch */

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	unsigned int num_channels;

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	char *selector_name;	/* capture source select label */

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	const char **input_names; /* capture source names (NULL terminated) */

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};

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struct snd_akm4xxx {

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	struct snd_card *card;

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	unsigned int num_adcs;			/* AK4524 or AK4528 ADCs */

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	unsigned int num_dacs;			/* AK4524 or AK4528 DACs */

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	unsigned char images[AK4XXX_IMAGE_SIZE]; /* saved register image */

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	unsigned char volumes[AK4XXX_IMAGE_SIZE]; /* saved volume values */

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	unsigned long private_value[AK4XXX_MAX_CHIPS];	/* helper for driver */

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	void *private_data[AK4XXX_MAX_CHIPS];		/* helper for driver */

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	/* template should fill the following fields */

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	unsigned int idx_offset;		/* control index offset */

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	enum {

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		SND_AK4524, SND_AK4528, SND_AK4529,

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		SND_AK4355, SND_AK4358, SND_AK4381,

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		SND_AK5365, SND_AK4620,

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	} type;

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	/* (array) information of combined codecs */

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	const struct snd_akm4xxx_dac_channel *dac_info;

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	const struct snd_akm4xxx_adc_channel *adc_info;

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	struct snd_ak4xxx_ops ops;

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	unsigned int num_chips;

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	unsigned int total_regs;

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	const char *name;

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};

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void snd_akm4xxx_write(struct snd_akm4xxx *ak, int chip, unsigned char reg,

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		       unsigned char val);

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void snd_akm4xxx_reset(struct snd_akm4xxx *ak, int state);

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void snd_akm4xxx_init(struct snd_akm4xxx *ak);

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int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak);

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#define snd_akm4xxx_get(ak,chip,reg) \

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	(ak)->images[(chip) * 16 + (reg)]

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#define snd_akm4xxx_set(ak,chip,reg,val) \

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	((ak)->images[(chip) * 16 + (reg)] = (val))

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#define snd_akm4xxx_get_vol(ak,chip,reg) \

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	(ak)->volumes[(chip) * 16 + (reg)]

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#define snd_akm4xxx_set_vol(ak,chip,reg,val) \

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	((ak)->volumes[(chip) * 16 + (reg)] = (val))

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#endif /* __SOUND_AK4XXX_ADDA_H */

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