xref: /openbmc/linux/include/sound/ak4531_codec.h (revision 1a59d1b8)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 #ifndef __SOUND_AK4531_CODEC_H
3 #define __SOUND_AK4531_CODEC_H
4 
5 /*
6  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
7  *  Universal interface for Audio Codec '97
8  *
9  *  For more details look to AC '97 component specification revision 2.1
10  *  by Intel Corporation (http://developer.intel.com).
11  */
12 
13 #include <sound/info.h>
14 #include <sound/control.h>
15 
16 /*
17  *  ASAHI KASEI - AK4531 codec
18  *  - not really AC'97 codec, but it uses very similar interface as AC'97
19  */
20 
21 /*
22  *  AK4531 codec registers
23  */
24 
25 #define AK4531_LMASTER  0x00	/* master volume left */
26 #define AK4531_RMASTER  0x01	/* master volume right */
27 #define AK4531_LVOICE   0x02	/* channel volume left */
28 #define AK4531_RVOICE   0x03	/* channel volume right */
29 #define AK4531_LFM      0x04	/* FM volume left */
30 #define AK4531_RFM      0x05	/* FM volume right */
31 #define AK4531_LCD      0x06	/* CD volume left */
32 #define AK4531_RCD      0x07	/* CD volume right */
33 #define AK4531_LLINE    0x08	/* LINE volume left */
34 #define AK4531_RLINE    0x09	/* LINE volume right */
35 #define AK4531_LAUXA    0x0a	/* AUXA volume left */
36 #define AK4531_RAUXA    0x0b	/* AUXA volume right */
37 #define AK4531_MONO1    0x0c	/* MONO1 volume left */
38 #define AK4531_MONO2    0x0d	/* MONO1 volume right */
39 #define AK4531_MIC      0x0e	/* MIC volume */
40 #define AK4531_MONO_OUT 0x0f	/* Mono-out volume */
41 #define AK4531_OUT_SW1  0x10	/* Output mixer switch 1 */
42 #define AK4531_OUT_SW2  0x11	/* Output mixer switch 2 */
43 #define AK4531_LIN_SW1  0x12	/* Input left mixer switch 1 */
44 #define AK4531_RIN_SW1  0x13	/* Input right mixer switch 1 */
45 #define AK4531_LIN_SW2  0x14	/* Input left mixer switch 2 */
46 #define AK4531_RIN_SW2  0x15	/* Input right mixer switch 2 */
47 #define AK4531_RESET    0x16	/* Reset & power down */
48 #define AK4531_CLOCK    0x17	/* Clock select */
49 #define AK4531_AD_IN    0x18	/* AD input select */
50 #define AK4531_MIC_GAIN 0x19	/* MIC amplified gain */
51 
52 struct snd_ak4531 {
53 	void (*write) (struct snd_ak4531 *ak4531, unsigned short reg,
54 		       unsigned short val);
55 	void *private_data;
56 	void (*private_free) (struct snd_ak4531 *ak4531);
57 	/* --- */
58 	unsigned char regs[0x20];
59 	struct mutex reg_mutex;
60 };
61 
62 int snd_ak4531_mixer(struct snd_card *card, struct snd_ak4531 *_ak4531,
63 		     struct snd_ak4531 **rak4531);
64 
65 #ifdef CONFIG_PM
66 void snd_ak4531_suspend(struct snd_ak4531 *ak4531);
67 void snd_ak4531_resume(struct snd_ak4531 *ak4531);
68 #endif
69 
70 #endif /* __SOUND_AK4531_CODEC_H */
71