xref: /openbmc/linux/sound/aoa/codecs/onyx.h (revision 39f75da7)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Apple Onboard Audio driver for Onyx codec (header)
4  *
5  * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
6  */
7 #ifndef __SND_AOA_CODEC_ONYX_H
8 #define __SND_AOA_CODEC_ONYX_H
9 #include <linux/i2c.h>
10 #include <asm/pmac_low_i2c.h>
11 #include <asm/prom.h>
12 
13 /* PCM3052 register definitions */
14 
15 /* the attenuation registers take values from
16  * -1 (0dB) to -127 (-63.0 dB) or others (muted) */
17 #define ONYX_REG_DAC_ATTEN_LEFT		65
18 #define FIRSTREGISTER			ONYX_REG_DAC_ATTEN_LEFT
19 #define ONYX_REG_DAC_ATTEN_RIGHT	66
20 
21 #define ONYX_REG_CONTROL		67
22 #	define ONYX_MRST		(1<<7)
23 #	define ONYX_SRST		(1<<6)
24 #	define ONYX_ADPSV		(1<<5)
25 #	define ONYX_DAPSV		(1<<4)
26 #	define ONYX_SILICONVERSION	(1<<0)
27 /* all others reserved */
28 
29 #define ONYX_REG_DAC_CONTROL		68
30 #	define ONYX_OVR1		(1<<6)
31 #	define ONYX_MUTE_RIGHT		(1<<1)
32 #	define ONYX_MUTE_LEFT		(1<<0)
33 
34 #define ONYX_REG_DAC_DEEMPH		69
35 #	define ONYX_DIGDEEMPH_SHIFT	5
36 #	define ONYX_DIGDEEMPH_MASK	(3<<ONYX_DIGDEEMPH_SHIFT)
37 #	define ONYX_DIGDEEMPH_CTRL	(1<<4)
38 
39 #define ONYX_REG_DAC_FILTER		70
40 #	define ONYX_ROLLOFF_FAST	(1<<5)
41 #	define ONYX_DAC_FILTER_ALWAYS	(1<<2)
42 
43 #define	ONYX_REG_DAC_OUTPHASE		71
44 #	define ONYX_OUTPHASE_INVERTED	(1<<0)
45 
46 #define ONYX_REG_ADC_CONTROL		72
47 #	define ONYX_ADC_INPUT_MIC	(1<<5)
48 /* 8 + input gain in dB, valid range for input gain is -4 .. 20 dB */
49 #	define ONYX_ADC_PGA_GAIN_MASK	0x1f
50 
51 #define ONYX_REG_ADC_HPF_BYPASS		75
52 #	define ONYX_HPF_DISABLE		(1<<3)
53 #	define ONYX_ADC_HPF_ALWAYS	(1<<2)
54 
55 #define ONYX_REG_DIG_INFO1		77
56 #	define ONYX_MASK_DIN_TO_BPZ	(1<<7)
57 /* bits 1-5 control channel bits 1-5 */
58 #	define ONYX_DIGOUT_DISABLE	(1<<0)
59 
60 #define ONYX_REG_DIG_INFO2		78
61 /* controls channel bits 8-15 */
62 
63 #define ONYX_REG_DIG_INFO3		79
64 /* control channel bits 24-29, high 2 bits reserved */
65 
66 #define ONYX_REG_DIG_INFO4		80
67 #	define ONYX_VALIDL		(1<<7)
68 #	define ONYX_VALIDR		(1<<6)
69 #	define ONYX_SPDIF_ENABLE	(1<<5)
70 /* lower 4 bits control bits 32-35 of channel control and word length */
71 #	define ONYX_WORDLEN_MASK	(0xF)
72 
73 #endif /* __SND_AOA_CODEC_ONYX_H */
74