1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * NAU85L40 ALSA SoC audio driver
4 *
5 * Copyright 2016 Nuvoton Technology Corp.
6 * Author: John Hsu <KCHSU0@nuvoton.com>
7 */
8
9#ifndef __NAU8540_H__
10#define __NAU8540_H__
11
12#define NAU8540_REG_SW_RESET			0x00
13#define NAU8540_REG_POWER_MANAGEMENT	0x01
14#define NAU8540_REG_CLOCK_CTRL		0x02
15#define NAU8540_REG_CLOCK_SRC			0x03
16#define NAU8540_REG_FLL1			0x04
17#define NAU8540_REG_FLL2			0x05
18#define NAU8540_REG_FLL3			0x06
19#define NAU8540_REG_FLL4			0x07
20#define NAU8540_REG_FLL5			0x08
21#define NAU8540_REG_FLL6			0x09
22#define NAU8540_REG_FLL_VCO_RSV		0x0A
23#define NAU8540_REG_PCM_CTRL0			0x10
24#define NAU8540_REG_PCM_CTRL1			0x11
25#define NAU8540_REG_PCM_CTRL2			0x12
26#define NAU8540_REG_PCM_CTRL3			0x13
27#define NAU8540_REG_PCM_CTRL4			0x14
28#define NAU8540_REG_ALC_CONTROL_1		0x20
29#define NAU8540_REG_ALC_CONTROL_2		0x21
30#define NAU8540_REG_ALC_CONTROL_3		0x22
31#define NAU8540_REG_ALC_CONTROL_4		0x23
32#define NAU8540_REG_ALC_CONTROL_5		0x24
33#define NAU8540_REG_ALC_GAIN_CH12		0x2D
34#define NAU8540_REG_ALC_GAIN_CH34		0x2E
35#define NAU8540_REG_ALC_STATUS		0x2F
36#define NAU8540_REG_NOTCH_FIL1_CH1		0x30
37#define NAU8540_REG_NOTCH_FIL2_CH1		0x31
38#define NAU8540_REG_NOTCH_FIL1_CH2		0x32
39#define NAU8540_REG_NOTCH_FIL2_CH2		0x33
40#define NAU8540_REG_NOTCH_FIL1_CH3		0x34
41#define NAU8540_REG_NOTCH_FIL2_CH3		0x35
42#define NAU8540_REG_NOTCH_FIL1_CH4		0x36
43#define NAU8540_REG_NOTCH_FIL2_CH4		0x37
44#define NAU8540_REG_HPF_FILTER_CH12		0x38
45#define NAU8540_REG_HPF_FILTER_CH34		0x39
46#define NAU8540_REG_ADC_SAMPLE_RATE		0x3A
47#define NAU8540_REG_DIGITAL_GAIN_CH1		0x40
48#define NAU8540_REG_DIGITAL_GAIN_CH2		0x41
49#define NAU8540_REG_DIGITAL_GAIN_CH3		0x42
50#define NAU8540_REG_DIGITAL_GAIN_CH4		0x43
51#define NAU8540_REG_DIGITAL_MUX		0x44
52#define NAU8540_REG_P2P_CH1			0x48
53#define NAU8540_REG_P2P_CH2			0x49
54#define NAU8540_REG_P2P_CH3			0x4A
55#define NAU8540_REG_P2P_CH4			0x4B
56#define NAU8540_REG_PEAK_CH1			0x4C
57#define NAU8540_REG_PEAK_CH2			0x4D
58#define NAU8540_REG_PEAK_CH3			0x4E
59#define NAU8540_REG_PEAK_CH4			0x4F
60#define NAU8540_REG_GPIO_CTRL			0x50
61#define NAU8540_REG_MISC_CTRL			0x51
62#define NAU8540_REG_I2C_CTRL			0x52
63#define NAU8540_REG_I2C_DEVICE_ID		0x58
64#define NAU8540_REG_RST			0x5A
65#define NAU8540_REG_VMID_CTRL			0x60
66#define NAU8540_REG_MUTE			0x61
67#define NAU8540_REG_ANALOG_ADC1		0x64
68#define NAU8540_REG_ANALOG_ADC2		0x65
69#define NAU8540_REG_ANALOG_PWR		0x66
70#define NAU8540_REG_MIC_BIAS			0x67
71#define NAU8540_REG_REFERENCE			0x68
72#define NAU8540_REG_FEPGA1			0x69
73#define NAU8540_REG_FEPGA2			0x6A
74#define NAU8540_REG_FEPGA3			0x6B
75#define NAU8540_REG_FEPGA4			0x6C
76#define NAU8540_REG_PWR			0x6D
77#define NAU8540_REG_MAX			NAU8540_REG_PWR
78
79
80/* POWER_MANAGEMENT (0x01) */
81#define NAU8540_ADC4_EN		(0x1 << 3)
82#define NAU8540_ADC3_EN		(0x1 << 2)
83#define NAU8540_ADC2_EN		(0x1 << 1)
84#define NAU8540_ADC1_EN		0x1
85
86/* CLOCK_CTRL (0x02) */
87#define NAU8540_CLK_ADC_EN		(0x1 << 15)
88#define NAU8540_CLK_I2S_EN		(0x1 << 1)
89
90/* CLOCK_SRC (0x03) */
91#define NAU8540_CLK_SRC_SFT		15
92#define NAU8540_CLK_SRC_MASK		(1 << NAU8540_CLK_SRC_SFT)
93#define NAU8540_CLK_SRC_VCO		(1 << NAU8540_CLK_SRC_SFT)
94#define NAU8540_CLK_SRC_MCLK		(0 << NAU8540_CLK_SRC_SFT)
95#define NAU8540_CLK_ADC_SRC_SFT	6
96#define NAU8540_CLK_ADC_SRC_MASK	(0x3 << NAU8540_CLK_ADC_SRC_SFT)
97#define NAU8540_CLK_MCLK_SRC_MASK	0xf
98
99/* FLL1 (0x04) */
100#define NAU8540_ICTRL_LATCH_SFT	10
101#define NAU8540_ICTRL_LATCH_MASK	(0x7 << NAU8540_ICTRL_LATCH_SFT)
102#define NAU8540_FLL_RATIO_MASK	0x7f
103
104/* FLL3 (0x06) */
105#define NAU8540_GAIN_ERR_SFT		12
106#define NAU8540_GAIN_ERR_MASK		(0xf << NAU8540_GAIN_ERR_SFT)
107#define NAU8540_FLL_CLK_SRC_SFT	10
108#define NAU8540_FLL_CLK_SRC_MASK	(0x3 << NAU8540_FLL_CLK_SRC_SFT)
109#define NAU8540_FLL_CLK_SRC_MCLK	(0 << NAU8540_FLL_CLK_SRC_SFT)
110#define NAU8540_FLL_CLK_SRC_BLK	(0x2 << NAU8540_FLL_CLK_SRC_SFT)
111#define NAU8540_FLL_CLK_SRC_FS		(0x3 << NAU8540_FLL_CLK_SRC_SFT)
112#define NAU8540_FLL_INTEGER_MASK	0x3ff
113
114/* FLL4 (0x07) */
115#define NAU8540_FLL_REF_DIV_SFT	10
116#define NAU8540_FLL_REF_DIV_MASK	(0x3 << NAU8540_FLL_REF_DIV_SFT)
117
118/* FLL5 (0x08) */
119#define NAU8540_FLL_PDB_DAC_EN	(0x1 << 15)
120#define NAU8540_FLL_LOOP_FTR_EN	(0x1 << 14)
121#define NAU8540_FLL_CLK_SW_MASK	(0x1 << 13)
122#define NAU8540_FLL_CLK_SW_N2		(0x1 << 13)
123#define NAU8540_FLL_CLK_SW_REF	(0x0 << 13)
124#define NAU8540_FLL_FTR_SW_MASK	(0x1 << 12)
125#define NAU8540_FLL_FTR_SW_ACCU	(0x1 << 12)
126#define NAU8540_FLL_FTR_SW_FILTER	(0x0 << 12)
127
128/* FLL6 (0x9) */
129#define NAU8540_DCO_EN			(0x1 << 15)
130#define NAU8540_SDM_EN			(0x1 << 14)
131#define NAU8540_CUTOFF500		(0x1 << 13)
132
133/* PCM_CTRL0 (0x10) */
134#define NAU8540_I2S_BP_SFT		7
135#define NAU8540_I2S_BP_INV		(0x1 << NAU8540_I2S_BP_SFT)
136#define NAU8540_I2S_PCMB_SFT		6
137#define NAU8540_I2S_PCMB_EN		(0x1 << NAU8540_I2S_PCMB_SFT)
138#define NAU8540_I2S_DL_SFT		2
139#define NAU8540_I2S_DL_MASK		(0x3 << NAU8540_I2S_DL_SFT)
140#define NAU8540_I2S_DL_16		(0 << NAU8540_I2S_DL_SFT)
141#define NAU8540_I2S_DL_20		(0x1 << NAU8540_I2S_DL_SFT)
142#define NAU8540_I2S_DL_24		(0x2 << NAU8540_I2S_DL_SFT)
143#define NAU8540_I2S_DL_32		(0x3 << NAU8540_I2S_DL_SFT)
144#define NAU8540_I2S_DF_MASK		0x3
145#define NAU8540_I2S_DF_RIGTH		0
146#define NAU8540_I2S_DF_LEFT		0x1
147#define NAU8540_I2S_DF_I2S		0x2
148#define NAU8540_I2S_DF_PCM_AB		0x3
149
150/* PCM_CTRL1 (0x11) */
151#define NAU8540_I2S_DO12_TRI		(0x1 << 15)
152#define NAU8540_I2S_LRC_DIV_SFT	12
153#define NAU8540_I2S_LRC_DIV_MASK	(0x3 << NAU8540_I2S_LRC_DIV_SFT)
154#define NAU8540_I2S_DO12_OE		(0x1 << 4)
155#define NAU8540_I2S_MS_SFT		3
156#define NAU8540_I2S_MS_MASK		(0x1 << NAU8540_I2S_MS_SFT)
157#define NAU8540_I2S_MS_MASTER		(0x1 << NAU8540_I2S_MS_SFT)
158#define NAU8540_I2S_MS_SLAVE		(0x0 << NAU8540_I2S_MS_SFT)
159#define NAU8540_I2S_BLK_DIV_MASK	0x7
160
161/* PCM_CTRL1 (0x12) */
162#define NAU8540_I2S_DO34_TRI		(0x1 << 15)
163#define NAU8540_I2S_DO34_OE		(0x1 << 11)
164#define NAU8540_I2S_TSLOT_L_MASK	0x3ff
165
166/* PCM_CTRL4 (0x14) */
167#define NAU8540_TDM_MODE		(0x1 << 15)
168#define NAU8540_TDM_OFFSET_EN		(0x1 << 14)
169#define NAU8540_TDM_TX_MASK		0xf
170
171/* ADC_SAMPLE_RATE (0x3A) */
172#define NAU8540_CH_SYNC		(0x1 << 14)
173#define NAU8540_ADC_OSR_MASK		0x3
174#define NAU8540_ADC_OSR_256		0x3
175#define NAU8540_ADC_OSR_128		0x2
176#define NAU8540_ADC_OSR_64		0x1
177#define NAU8540_ADC_OSR_32		0x0
178
179/* VMID_CTRL (0x60) */
180#define NAU8540_VMID_EN		(1 << 6)
181#define NAU8540_VMID_SEL_SFT		4
182#define NAU8540_VMID_SEL_MASK		(0x3 << NAU8540_VMID_SEL_SFT)
183
184/* MIC_BIAS (0x67) */
185#define NAU8540_PU_PRE			(0x1 << 8)
186
187/* REFERENCE (0x68) */
188#define NAU8540_PRECHARGE_DIS		(0x1 << 13)
189#define NAU8540_GLOBAL_BIAS_EN	(0x1 << 12)
190
191/* FEPGA1 (0x69) */
192#define NAU8540_FEPGA1_MODCH2_SHT_SFT	7
193#define NAU8540_FEPGA1_MODCH2_SHT	(0x1 << NAU8540_FEPGA1_MODCH2_SHT_SFT)
194#define NAU8540_FEPGA1_MODCH1_SHT_SFT	3
195#define NAU8540_FEPGA1_MODCH1_SHT	(0x1 << NAU8540_FEPGA1_MODCH1_SHT_SFT)
196
197/* FEPGA2 (0x6A) */
198#define NAU8540_FEPGA2_MODCH4_SHT_SFT	7
199#define NAU8540_FEPGA2_MODCH4_SHT	(0x1 << NAU8540_FEPGA2_MODCH4_SHT_SFT)
200#define NAU8540_FEPGA2_MODCH3_SHT_SFT	3
201#define NAU8540_FEPGA2_MODCH3_SHT	(0x1 << NAU8540_FEPGA2_MODCH3_SHT_SFT)
202
203
204/* System Clock Source */
205enum {
206	NAU8540_CLK_DIS,
207	NAU8540_CLK_MCLK,
208	NAU8540_CLK_INTERNAL,
209	NAU8540_CLK_FLL_MCLK,
210	NAU8540_CLK_FLL_BLK,
211	NAU8540_CLK_FLL_FS,
212};
213
214struct nau8540 {
215	struct device *dev;
216	struct regmap *regmap;
217};
218
219struct nau8540_fll {
220	int mclk_src;
221	int ratio;
222	int fll_frac;
223	int fll_int;
224	int clk_ref_div;
225};
226
227struct nau8540_fll_attr {
228	unsigned int param;
229	unsigned int val;
230};
231
232/* over sampling rate */
233struct nau8540_osr_attr {
234	unsigned int osr;
235	unsigned int clk_src;
236};
237
238
239#endif	/* __NAU8540_H__ */
240