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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/sound/ak4531_codec.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */

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#ifndef __SOUND_AK4531_CODEC_H

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#define __SOUND_AK4531_CODEC_H

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/*

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

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 *  Universal interface for Audio Codec '97

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 *

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 *  For more details look to AC '97 component specification revision 2.1

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 *  by Intel Corporation (http://developer.intel.com).

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 */

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#include <sound/info.h>

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#include <sound/control.h>

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/*

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 *  ASAHI KASEI - AK4531 codec

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 *  - not really AC'97 codec, but it uses very similar interface as AC'97

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 */

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/*

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 *  AK4531 codec registers

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 */

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#define AK4531_LMASTER  0x00	/* master volume left */

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#define AK4531_RMASTER  0x01	/* master volume right */

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#define AK4531_LVOICE   0x02	/* channel volume left */

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#define AK4531_RVOICE   0x03	/* channel volume right */

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#define AK4531_LFM      0x04	/* FM volume left */

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#define AK4531_RFM      0x05	/* FM volume right */

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#define AK4531_LCD      0x06	/* CD volume left */

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#define AK4531_RCD      0x07	/* CD volume right */

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#define AK4531_LLINE    0x08	/* LINE volume left */

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#define AK4531_RLINE    0x09	/* LINE volume right */

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#define AK4531_LAUXA    0x0a	/* AUXA volume left */

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#define AK4531_RAUXA    0x0b	/* AUXA volume right */

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#define AK4531_MONO1    0x0c	/* MONO1 volume left */

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#define AK4531_MONO2    0x0d	/* MONO1 volume right */

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#define AK4531_MIC      0x0e	/* MIC volume */

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#define AK4531_MONO_OUT 0x0f	/* Mono-out volume */

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#define AK4531_OUT_SW1  0x10	/* Output mixer switch 1 */

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#define AK4531_OUT_SW2  0x11	/* Output mixer switch 2 */

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#define AK4531_LIN_SW1  0x12	/* Input left mixer switch 1 */

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#define AK4531_RIN_SW1  0x13	/* Input right mixer switch 1 */

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#define AK4531_LIN_SW2  0x14	/* Input left mixer switch 2 */

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#define AK4531_RIN_SW2  0x15	/* Input right mixer switch 2 */

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#define AK4531_RESET    0x16	/* Reset & power down */

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#define AK4531_CLOCK    0x17	/* Clock select */

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#define AK4531_AD_IN    0x18	/* AD input select */

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#define AK4531_MIC_GAIN 0x19	/* MIC amplified gain */

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struct snd_ak4531 {

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	void (*write) (struct snd_ak4531 *ak4531, unsigned short reg,

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		       unsigned short val);

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	void *private_data;

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	void (*private_free) (struct snd_ak4531 *ak4531);

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	/* --- */

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	unsigned char regs[0x20];

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	struct mutex reg_mutex;

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};

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int snd_ak4531_mixer(struct snd_card *card, struct snd_ak4531 *_ak4531,

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		     struct snd_ak4531 **rak4531);

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#ifdef CONFIG_PM

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void snd_ak4531_suspend(struct snd_ak4531 *ak4531);

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void snd_ak4531_resume(struct snd_ak4531 *ak4531);

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#else

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static inline void snd_ak4531_suspend(struct snd_ak4531 *ak4531) {}

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static inline void snd_ak4531_resume(struct snd_ak4531 *ak4531) {}

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#endif

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#endif /* __SOUND_AK4531_CODEC_H */

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