xref: /openbmc/linux/include/sound/ak4531_codec.h (revision bc5aa3a0)
1 #ifndef __SOUND_AK4531_CODEC_H
2 #define __SOUND_AK4531_CODEC_H
3 
4 /*
5  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
6  *  Universal interface for Audio Codec '97
7  *
8  *  For more details look to AC '97 component specification revision 2.1
9  *  by Intel Corporation (http://developer.intel.com).
10  *
11  *
12  *   This program is free software; you can redistribute it and/or modify
13  *   it under the terms of the GNU General Public License as published by
14  *   the Free Software Foundation; either version 2 of the License, or
15  *   (at your option) any later version.
16  *
17  *   This program is distributed in the hope that it will be useful,
18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  *   GNU General Public License for more details.
21  *
22  *   You should have received a copy of the GNU General Public License
23  *   along with this program; if not, write to the Free Software
24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
25  *
26  */
27 
28 #include <sound/info.h>
29 #include <sound/control.h>
30 
31 /*
32  *  ASAHI KASEI - AK4531 codec
33  *  - not really AC'97 codec, but it uses very similar interface as AC'97
34  */
35 
36 /*
37  *  AK4531 codec registers
38  */
39 
40 #define AK4531_LMASTER  0x00	/* master volume left */
41 #define AK4531_RMASTER  0x01	/* master volume right */
42 #define AK4531_LVOICE   0x02	/* channel volume left */
43 #define AK4531_RVOICE   0x03	/* channel volume right */
44 #define AK4531_LFM      0x04	/* FM volume left */
45 #define AK4531_RFM      0x05	/* FM volume right */
46 #define AK4531_LCD      0x06	/* CD volume left */
47 #define AK4531_RCD      0x07	/* CD volume right */
48 #define AK4531_LLINE    0x08	/* LINE volume left */
49 #define AK4531_RLINE    0x09	/* LINE volume right */
50 #define AK4531_LAUXA    0x0a	/* AUXA volume left */
51 #define AK4531_RAUXA    0x0b	/* AUXA volume right */
52 #define AK4531_MONO1    0x0c	/* MONO1 volume left */
53 #define AK4531_MONO2    0x0d	/* MONO1 volume right */
54 #define AK4531_MIC      0x0e	/* MIC volume */
55 #define AK4531_MONO_OUT 0x0f	/* Mono-out volume */
56 #define AK4531_OUT_SW1  0x10	/* Output mixer switch 1 */
57 #define AK4531_OUT_SW2  0x11	/* Output mixer switch 2 */
58 #define AK4531_LIN_SW1  0x12	/* Input left mixer switch 1 */
59 #define AK4531_RIN_SW1  0x13	/* Input right mixer switch 1 */
60 #define AK4531_LIN_SW2  0x14	/* Input left mixer switch 2 */
61 #define AK4531_RIN_SW2  0x15	/* Input right mixer switch 2 */
62 #define AK4531_RESET    0x16	/* Reset & power down */
63 #define AK4531_CLOCK    0x17	/* Clock select */
64 #define AK4531_AD_IN    0x18	/* AD input select */
65 #define AK4531_MIC_GAIN 0x19	/* MIC amplified gain */
66 
67 struct snd_ak4531 {
68 	void (*write) (struct snd_ak4531 *ak4531, unsigned short reg,
69 		       unsigned short val);
70 	void *private_data;
71 	void (*private_free) (struct snd_ak4531 *ak4531);
72 	/* --- */
73 	unsigned char regs[0x20];
74 	struct mutex reg_mutex;
75 };
76 
77 int snd_ak4531_mixer(struct snd_card *card, struct snd_ak4531 *_ak4531,
78 		     struct snd_ak4531 **rak4531);
79 
80 #ifdef CONFIG_PM
81 void snd_ak4531_suspend(struct snd_ak4531 *ak4531);
82 void snd_ak4531_resume(struct snd_ak4531 *ak4531);
83 #endif
84 
85 #endif /* __SOUND_AK4531_CODEC_H */
86