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1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 #ifndef __SOUND_WM8766_H
3 #define __SOUND_WM8766_H
4
5 /*
6 * ALSA driver for ICEnsemble VT17xx
7 *
8 * Lowlevel functions for WM8766 codec
9 *
10 * Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org>
11 */
12
13 #define WM8766_REG_DACL1 0x00
14 #define WM8766_REG_DACR1 0x01
15 #define WM8766_VOL_MASK 0x1ff /* incl. update bit */
16 #define WM8766_VOL_UPDATE (1 << 8) /* update volume */
17 #define WM8766_REG_DACCTRL1 0x02
18 #define WM8766_DAC_MUTEALL (1 << 0)
19 #define WM8766_DAC_DEEMPALL (1 << 1)
20 #define WM8766_DAC_PDWN (1 << 2)
21 #define WM8766_DAC_ATC (1 << 3)
22 #define WM8766_DAC_IZD (1 << 4)
23 #define WM8766_DAC_PL_MASK 0x1e0
24 #define WM8766_DAC_PL_LL (1 << 5) /* L chan: L signal */
25 #define WM8766_DAC_PL_LR (2 << 5) /* L chan: R signal */
26 #define WM8766_DAC_PL_LB (3 << 5) /* L chan: both */
27 #define WM8766_DAC_PL_RL (1 << 7) /* R chan: L signal */
28 #define WM8766_DAC_PL_RR (2 << 7) /* R chan: R signal */
29 #define WM8766_DAC_PL_RB (3 << 7) /* R chan: both */
30 #define WM8766_REG_IFCTRL 0x03
31 #define WM8766_IF_FMT_RIGHTJ (0 << 0)
32 #define WM8766_IF_FMT_LEFTJ (1 << 0)
33 #define WM8766_IF_FMT_I2S (2 << 0)
34 #define WM8766_IF_FMT_DSP (3 << 0)
35 #define WM8766_IF_DSP_LATE (1 << 2) /* in DSP mode */
36 #define WM8766_IF_LRC_INVERTED (1 << 2) /* in other modes */
37 #define WM8766_IF_BCLK_INVERTED (1 << 3)
38 #define WM8766_IF_IWL_16BIT (0 << 4)
39 #define WM8766_IF_IWL_20BIT (1 << 4)
40 #define WM8766_IF_IWL_24BIT (2 << 4)
41 #define WM8766_IF_IWL_32BIT (3 << 4)
42 #define WM8766_IF_MASK 0x3f
43 #define WM8766_PHASE_INVERT1 (1 << 6)
44 #define WM8766_PHASE_INVERT2 (1 << 7)
45 #define WM8766_PHASE_INVERT3 (1 << 8)
46 #define WM8766_REG_DACL2 0x04
47 #define WM8766_REG_DACR2 0x05
48 #define WM8766_REG_DACL3 0x06
49 #define WM8766_REG_DACR3 0x07
50 #define WM8766_REG_MASTDA 0x08
51 #define WM8766_REG_DACCTRL2 0x09
52 #define WM8766_DAC2_ZCD (1 << 0)
53 #define WM8766_DAC2_ZFLAG_ALL (0 << 1)
54 #define WM8766_DAC2_ZFLAG_1 (1 << 1)
55 #define WM8766_DAC2_ZFLAG_2 (2 << 1)
56 #define WM8766_DAC2_ZFLAG_3 (3 << 1)
57 #define WM8766_DAC2_MUTE1 (1 << 3)
58 #define WM8766_DAC2_MUTE2 (1 << 4)
59 #define WM8766_DAC2_MUTE3 (1 << 5)
60 #define WM8766_DAC2_DEEMP1 (1 << 6)
61 #define WM8766_DAC2_DEEMP2 (1 << 7)
62 #define WM8766_DAC2_DEEMP3 (1 << 8)
63 #define WM8766_REG_DACCTRL3 0x0a
64 #define WM8766_DAC3_DACPD1 (1 << 1)
65 #define WM8766_DAC3_DACPD2 (1 << 2)
66 #define WM8766_DAC3_DACPD3 (1 << 3)
67 #define WM8766_DAC3_PWRDNALL (1 << 4)
68 #define WM8766_DAC3_POWER_MASK 0x1e
69 #define WM8766_DAC3_MASTER (1 << 5)
70 #define WM8766_DAC3_DAC128FS (0 << 6)
71 #define WM8766_DAC3_DAC192FS (1 << 6)
72 #define WM8766_DAC3_DAC256FS (2 << 6)
73 #define WM8766_DAC3_DAC384FS (3 << 6)
74 #define WM8766_DAC3_DAC512FS (4 << 6)
75 #define WM8766_DAC3_DAC768FS (5 << 6)
76 #define WM8766_DAC3_MSTR_MASK 0x1e0
77 #define WM8766_REG_MUTE1 0x0c
78 #define WM8766_MUTE1_MPD (1 << 6)
79 #define WM8766_REG_MUTE2 0x0f
80 #define WM8766_MUTE2_MPD (1 << 5)
81 #define WM8766_REG_RESET 0x1f
82
83 #define WM8766_REG_COUNT 0x10 /* don't cache the RESET register */
84
85 struct snd_wm8766;
86
87 struct snd_wm8766_ops {
88 void (*write)(struct snd_wm8766 *wm, u16 addr, u16 data);
89 };
90
91 enum snd_wm8766_ctl_id {
92 WM8766_CTL_CH1_VOL,
93 WM8766_CTL_CH2_VOL,
94 WM8766_CTL_CH3_VOL,
95 WM8766_CTL_CH1_SW,
96 WM8766_CTL_CH2_SW,
97 WM8766_CTL_CH3_SW,
98 WM8766_CTL_PHASE1_SW,
99 WM8766_CTL_PHASE2_SW,
100 WM8766_CTL_PHASE3_SW,
101 WM8766_CTL_DEEMPH1_SW,
102 WM8766_CTL_DEEMPH2_SW,
103 WM8766_CTL_DEEMPH3_SW,
104 WM8766_CTL_IZD_SW,
105 WM8766_CTL_ZC_SW,
106
107 WM8766_CTL_COUNT,
108 };
109
110 #define WM8766_ENUM_MAX 16
111
112 #define WM8766_FLAG_STEREO (1 << 0)
113 #define WM8766_FLAG_VOL_UPDATE (1 << 1)
114 #define WM8766_FLAG_INVERT (1 << 2)
115 #define WM8766_FLAG_LIM (1 << 3)
116 #define WM8766_FLAG_ALC (1 << 4)
117
118 struct snd_wm8766_ctl {
119 struct snd_kcontrol *kctl;
120 const char *name;
121 snd_ctl_elem_type_t type;
122 const char *const enum_names[WM8766_ENUM_MAX];
123 const unsigned int *tlv;
124 u16 reg1, reg2, mask1, mask2, min, max, flags;
125 void (*set)(struct snd_wm8766 *wm, u16 ch1, u16 ch2);
126 void (*get)(struct snd_wm8766 *wm, u16 *ch1, u16 *ch2);
127 };
128
129 enum snd_wm8766_agc_mode { WM8766_AGC_OFF, WM8766_AGC_LIM, WM8766_AGC_ALC };
130
131 struct snd_wm8766 {
132 struct snd_card *card;
133 struct snd_wm8766_ctl ctl[WM8766_CTL_COUNT];
134 enum snd_wm8766_agc_mode agc_mode;
135 struct snd_wm8766_ops ops;
136 u16 regs[WM8766_REG_COUNT]; /* 9-bit registers */
137 };
138
139
140
141 void snd_wm8766_init(struct snd_wm8766 *wm);
142 void snd_wm8766_resume(struct snd_wm8766 *wm);
143 void snd_wm8766_set_if(struct snd_wm8766 *wm, u16 dac);
144 void snd_wm8766_volume_restore(struct snd_wm8766 *wm);
145 int snd_wm8766_build_controls(struct snd_wm8766 *wm);
146
147 #endif /* __SOUND_WM8766_H */