xref: /openbmc/linux/sound/soc/codecs/ak4671.c (revision 52fb57e7)
1 /*
2  * ak4671.c  --  audio driver for AK4671
3  *
4  * Copyright (C) 2009 Samsung Electronics Co.Ltd
5  * Author: Joonyoung Shim <jy0922.shim@samsung.com>
6  *
7  *  This program is free software; you can redistribute  it and/or modify it
8  *  under  the terms of  the GNU General  Public License as published by the
9  *  Free Software Foundation;  either version 2 of the  License, or (at your
10  *  option) any later version.
11  *
12  */
13 
14 #include <linux/module.h>
15 #include <linux/init.h>
16 #include <linux/i2c.h>
17 #include <linux/delay.h>
18 #include <linux/regmap.h>
19 #include <linux/slab.h>
20 #include <sound/soc.h>
21 #include <sound/initval.h>
22 #include <sound/tlv.h>
23 
24 #include "ak4671.h"
25 
26 
27 /* ak4671 register cache & default register settings */
28 static const struct reg_default ak4671_reg_defaults[] = {
29 	{ 0x00, 0x00 },	/* AK4671_AD_DA_POWER_MANAGEMENT	(0x00)	*/
30 	{ 0x01, 0xf6 },	/* AK4671_PLL_MODE_SELECT0		(0x01)	*/
31 	{ 0x02, 0x00 },	/* AK4671_PLL_MODE_SELECT1		(0x02)	*/
32 	{ 0x03, 0x02 },	/* AK4671_FORMAT_SELECT			(0x03)	*/
33 	{ 0x04, 0x00 },	/* AK4671_MIC_SIGNAL_SELECT		(0x04)	*/
34 	{ 0x05, 0x55 },	/* AK4671_MIC_AMP_GAIN			(0x05)	*/
35 	{ 0x06, 0x00 },	/* AK4671_MIXING_POWER_MANAGEMENT0	(0x06)	*/
36 	{ 0x07, 0x00 },	/* AK4671_MIXING_POWER_MANAGEMENT1	(0x07)	*/
37 	{ 0x08, 0xb5 },	/* AK4671_OUTPUT_VOLUME_CONTROL		(0x08)	*/
38 	{ 0x09, 0x00 },	/* AK4671_LOUT1_SIGNAL_SELECT		(0x09)	*/
39 	{ 0x0a, 0x00 },	/* AK4671_ROUT1_SIGNAL_SELECT		(0x0a)	*/
40 	{ 0x0b, 0x00 },	/* AK4671_LOUT2_SIGNAL_SELECT		(0x0b)	*/
41 	{ 0x0c, 0x00 },	/* AK4671_ROUT2_SIGNAL_SELECT		(0x0c)	*/
42 	{ 0x0d, 0x00 },	/* AK4671_LOUT3_SIGNAL_SELECT		(0x0d)	*/
43 	{ 0x0e, 0x00 },	/* AK4671_ROUT3_SIGNAL_SELECT		(0x0e)	*/
44 	{ 0x0f, 0x00 },	/* AK4671_LOUT1_POWER_MANAGERMENT	(0x0f)	*/
45 	{ 0x10, 0x00 },	/* AK4671_LOUT2_POWER_MANAGERMENT	(0x10)	*/
46 	{ 0x11, 0x80 },	/* AK4671_LOUT3_POWER_MANAGERMENT	(0x11)	*/
47 	{ 0x12, 0x91 },	/* AK4671_LCH_INPUT_VOLUME_CONTROL	(0x12)	*/
48 	{ 0x13, 0x91 },	/* AK4671_RCH_INPUT_VOLUME_CONTROL	(0x13)	*/
49 	{ 0x14, 0xe1 },	/* AK4671_ALC_REFERENCE_SELECT		(0x14)	*/
50 	{ 0x15, 0x00 },	/* AK4671_DIGITAL_MIXING_CONTROL	(0x15)	*/
51 	{ 0x16, 0x00 },	/* AK4671_ALC_TIMER_SELECT		(0x16)	*/
52 	{ 0x17, 0x00 },	/* AK4671_ALC_MODE_CONTROL		(0x17)	*/
53 	{ 0x18, 0x02 },	/* AK4671_MODE_CONTROL1			(0x18)	*/
54 	{ 0x19, 0x01 },	/* AK4671_MODE_CONTROL2			(0x19)	*/
55 	{ 0x1a, 0x18 },	/* AK4671_LCH_OUTPUT_VOLUME_CONTROL	(0x1a)	*/
56 	{ 0x1b, 0x18 },	/* AK4671_RCH_OUTPUT_VOLUME_CONTROL	(0x1b)	*/
57 	{ 0x1c, 0x00 },	/* AK4671_SIDETONE_A_CONTROL		(0x1c)	*/
58 	{ 0x1d, 0x02 },	/* AK4671_DIGITAL_FILTER_SELECT		(0x1d)	*/
59 	{ 0x1e, 0x00 },	/* AK4671_FIL3_COEFFICIENT0		(0x1e)	*/
60 	{ 0x1f, 0x00 },	/* AK4671_FIL3_COEFFICIENT1		(0x1f)	*/
61 	{ 0x20, 0x00 },	/* AK4671_FIL3_COEFFICIENT2		(0x20)	*/
62 	{ 0x21, 0x00 },	/* AK4671_FIL3_COEFFICIENT3		(0x21)	*/
63 	{ 0x22, 0x00 },	/* AK4671_EQ_COEFFICIENT0		(0x22)	*/
64 	{ 0x23, 0x00 },	/* AK4671_EQ_COEFFICIENT1		(0x23)	*/
65 	{ 0x24, 0x00 },	/* AK4671_EQ_COEFFICIENT2		(0x24)	*/
66 	{ 0x25, 0x00 },	/* AK4671_EQ_COEFFICIENT3		(0x25)	*/
67 	{ 0x26, 0x00 },	/* AK4671_EQ_COEFFICIENT4		(0x26)	*/
68 	{ 0x27, 0x00 },	/* AK4671_EQ_COEFFICIENT5		(0x27)	*/
69 	{ 0x28, 0xa9 },	/* AK4671_FIL1_COEFFICIENT0		(0x28)	*/
70 	{ 0x29, 0x1f },	/* AK4671_FIL1_COEFFICIENT1		(0x29)	*/
71 	{ 0x2a, 0xad },	/* AK4671_FIL1_COEFFICIENT2		(0x2a)	*/
72 	{ 0x2b, 0x20 },	/* AK4671_FIL1_COEFFICIENT3		(0x2b)	*/
73 	{ 0x2c, 0x00 },	/* AK4671_FIL2_COEFFICIENT0		(0x2c)	*/
74 	{ 0x2d, 0x00 },	/* AK4671_FIL2_COEFFICIENT1		(0x2d)	*/
75 	{ 0x2e, 0x00 },	/* AK4671_FIL2_COEFFICIENT2		(0x2e)	*/
76 	{ 0x2f, 0x00 },	/* AK4671_FIL2_COEFFICIENT3		(0x2f)	*/
77 	{ 0x30, 0x00 },	/* AK4671_DIGITAL_FILTER_SELECT2	(0x30)	*/
78 
79 	{ 0x32, 0x00 },	/* AK4671_E1_COEFFICIENT0		(0x32)	*/
80 	{ 0x33, 0x00 },	/* AK4671_E1_COEFFICIENT1		(0x33)	*/
81 	{ 0x34, 0x00 },	/* AK4671_E1_COEFFICIENT2		(0x34)	*/
82 	{ 0x35, 0x00 },	/* AK4671_E1_COEFFICIENT3		(0x35)	*/
83 	{ 0x36, 0x00 },	/* AK4671_E1_COEFFICIENT4		(0x36)	*/
84 	{ 0x37, 0x00 },	/* AK4671_E1_COEFFICIENT5		(0x37)	*/
85 	{ 0x38, 0x00 },	/* AK4671_E2_COEFFICIENT0		(0x38)	*/
86 	{ 0x39, 0x00 },	/* AK4671_E2_COEFFICIENT1		(0x39)	*/
87 	{ 0x3a, 0x00 },	/* AK4671_E2_COEFFICIENT2		(0x3a)	*/
88 	{ 0x3b, 0x00 },	/* AK4671_E2_COEFFICIENT3		(0x3b)	*/
89 	{ 0x3c, 0x00 },	/* AK4671_E2_COEFFICIENT4		(0x3c)	*/
90 	{ 0x3d, 0x00 },	/* AK4671_E2_COEFFICIENT5		(0x3d)	*/
91 	{ 0x3e, 0x00 },	/* AK4671_E3_COEFFICIENT0		(0x3e)	*/
92 	{ 0x3f, 0x00 },	/* AK4671_E3_COEFFICIENT1		(0x3f)	*/
93 	{ 0x40, 0x00 },	/* AK4671_E3_COEFFICIENT2		(0x40)	*/
94 	{ 0x41, 0x00 },	/* AK4671_E3_COEFFICIENT3		(0x41)	*/
95 	{ 0x42, 0x00 },	/* AK4671_E3_COEFFICIENT4		(0x42)	*/
96 	{ 0x43, 0x00 },	/* AK4671_E3_COEFFICIENT5		(0x43)	*/
97 	{ 0x44, 0x00 },	/* AK4671_E4_COEFFICIENT0		(0x44)	*/
98 	{ 0x45, 0x00 },	/* AK4671_E4_COEFFICIENT1		(0x45)	*/
99 	{ 0x46, 0x00 },	/* AK4671_E4_COEFFICIENT2		(0x46)	*/
100 	{ 0x47, 0x00 },	/* AK4671_E4_COEFFICIENT3		(0x47)	*/
101 	{ 0x48, 0x00 },	/* AK4671_E4_COEFFICIENT4		(0x48)	*/
102 	{ 0x49, 0x00 },	/* AK4671_E4_COEFFICIENT5		(0x49)	*/
103 	{ 0x4a, 0x00 },	/* AK4671_E5_COEFFICIENT0		(0x4a)	*/
104 	{ 0x4b, 0x00 },	/* AK4671_E5_COEFFICIENT1		(0x4b)	*/
105 	{ 0x4c, 0x00 },	/* AK4671_E5_COEFFICIENT2		(0x4c)	*/
106 	{ 0x4d, 0x00 },	/* AK4671_E5_COEFFICIENT3		(0x4d)	*/
107 	{ 0x4e, 0x00 },	/* AK4671_E5_COEFFICIENT4		(0x4e)	*/
108 	{ 0x4f, 0x00 },	/* AK4671_E5_COEFFICIENT5		(0x4f)	*/
109 	{ 0x50, 0x88 },	/* AK4671_EQ_CONTROL_250HZ_100HZ	(0x50)	*/
110 	{ 0x51, 0x88 },	/* AK4671_EQ_CONTROL_3500HZ_1KHZ	(0x51)	*/
111 	{ 0x52, 0x08 },	/* AK4671_EQ_CONTRO_10KHZ		(0x52)	*/
112 	{ 0x53, 0x00 },	/* AK4671_PCM_IF_CONTROL0		(0x53)	*/
113 	{ 0x54, 0x00 },	/* AK4671_PCM_IF_CONTROL1		(0x54)	*/
114 	{ 0x55, 0x00 },	/* AK4671_PCM_IF_CONTROL2		(0x55)	*/
115 	{ 0x56, 0x18 },	/* AK4671_DIGITAL_VOLUME_B_CONTROL	(0x56)	*/
116 	{ 0x57, 0x18 },	/* AK4671_DIGITAL_VOLUME_C_CONTROL	(0x57)	*/
117 	{ 0x58, 0x00 },	/* AK4671_SIDETONE_VOLUME_CONTROL	(0x58)	*/
118 	{ 0x59, 0x00 },	/* AK4671_DIGITAL_MIXING_CONTROL2	(0x59)	*/
119 	{ 0x5a, 0x00 },	/* AK4671_SAR_ADC_CONTROL		(0x5a)	*/
120 };
121 
122 /*
123  * LOUT1/ROUT1 output volume control:
124  * from -24 to 6 dB in 6 dB steps (mute instead of -30 dB)
125  */
126 static DECLARE_TLV_DB_SCALE(out1_tlv, -3000, 600, 1);
127 
128 /*
129  * LOUT2/ROUT2 output volume control:
130  * from -33 to 6 dB in 3 dB steps (mute instead of -33 dB)
131  */
132 static DECLARE_TLV_DB_SCALE(out2_tlv, -3300, 300, 1);
133 
134 /*
135  * LOUT3/ROUT3 output volume control:
136  * from -6 to 3 dB in 3 dB steps
137  */
138 static DECLARE_TLV_DB_SCALE(out3_tlv, -600, 300, 0);
139 
140 /*
141  * Mic amp gain control:
142  * from -15 to 30 dB in 3 dB steps
143  * REVISIT: The actual min value(0x01) is -12 dB and the reg value 0x00 is not
144  * available
145  */
146 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -1500, 300, 0);
147 
148 static const struct snd_kcontrol_new ak4671_snd_controls[] = {
149 	/* Common playback gain controls */
150 	SOC_SINGLE_TLV("Line Output1 Playback Volume",
151 			AK4671_OUTPUT_VOLUME_CONTROL, 0, 0x6, 0, out1_tlv),
152 	SOC_SINGLE_TLV("Headphone Output2 Playback Volume",
153 			AK4671_OUTPUT_VOLUME_CONTROL, 4, 0xd, 0, out2_tlv),
154 	SOC_SINGLE_TLV("Line Output3 Playback Volume",
155 			AK4671_LOUT3_POWER_MANAGERMENT, 6, 0x3, 0, out3_tlv),
156 
157 	/* Common capture gain controls */
158 	SOC_DOUBLE_TLV("Mic Amp Capture Volume",
159 			AK4671_MIC_AMP_GAIN, 0, 4, 0xf, 0, mic_amp_tlv),
160 };
161 
162 /* event handlers */
163 static int ak4671_out2_event(struct snd_soc_dapm_widget *w,
164 		struct snd_kcontrol *kcontrol, int event)
165 {
166 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
167 
168 	switch (event) {
169 	case SND_SOC_DAPM_POST_PMU:
170 		snd_soc_update_bits(codec, AK4671_LOUT2_POWER_MANAGERMENT,
171 				    AK4671_MUTEN, AK4671_MUTEN);
172 		break;
173 	case SND_SOC_DAPM_PRE_PMD:
174 		snd_soc_update_bits(codec, AK4671_LOUT2_POWER_MANAGERMENT,
175 				    AK4671_MUTEN, 0);
176 		break;
177 	}
178 
179 	return 0;
180 }
181 
182 /* Output Mixers */
183 static const struct snd_kcontrol_new ak4671_lout1_mixer_controls[] = {
184 	SOC_DAPM_SINGLE("DACL", AK4671_LOUT1_SIGNAL_SELECT, 0, 1, 0),
185 	SOC_DAPM_SINGLE("LINL1", AK4671_LOUT1_SIGNAL_SELECT, 1, 1, 0),
186 	SOC_DAPM_SINGLE("LINL2", AK4671_LOUT1_SIGNAL_SELECT, 2, 1, 0),
187 	SOC_DAPM_SINGLE("LINL3", AK4671_LOUT1_SIGNAL_SELECT, 3, 1, 0),
188 	SOC_DAPM_SINGLE("LINL4", AK4671_LOUT1_SIGNAL_SELECT, 4, 1, 0),
189 	SOC_DAPM_SINGLE("LOOPL", AK4671_LOUT1_SIGNAL_SELECT, 5, 1, 0),
190 };
191 
192 static const struct snd_kcontrol_new ak4671_rout1_mixer_controls[] = {
193 	SOC_DAPM_SINGLE("DACR", AK4671_ROUT1_SIGNAL_SELECT, 0, 1, 0),
194 	SOC_DAPM_SINGLE("RINR1", AK4671_ROUT1_SIGNAL_SELECT, 1, 1, 0),
195 	SOC_DAPM_SINGLE("RINR2", AK4671_ROUT1_SIGNAL_SELECT, 2, 1, 0),
196 	SOC_DAPM_SINGLE("RINR3", AK4671_ROUT1_SIGNAL_SELECT, 3, 1, 0),
197 	SOC_DAPM_SINGLE("RINR4", AK4671_ROUT1_SIGNAL_SELECT, 4, 1, 0),
198 	SOC_DAPM_SINGLE("LOOPR", AK4671_ROUT1_SIGNAL_SELECT, 5, 1, 0),
199 };
200 
201 static const struct snd_kcontrol_new ak4671_lout2_mixer_controls[] = {
202 	SOC_DAPM_SINGLE("DACHL", AK4671_LOUT2_SIGNAL_SELECT, 0, 1, 0),
203 	SOC_DAPM_SINGLE("LINH1", AK4671_LOUT2_SIGNAL_SELECT, 1, 1, 0),
204 	SOC_DAPM_SINGLE("LINH2", AK4671_LOUT2_SIGNAL_SELECT, 2, 1, 0),
205 	SOC_DAPM_SINGLE("LINH3", AK4671_LOUT2_SIGNAL_SELECT, 3, 1, 0),
206 	SOC_DAPM_SINGLE("LINH4", AK4671_LOUT2_SIGNAL_SELECT, 4, 1, 0),
207 	SOC_DAPM_SINGLE("LOOPHL", AK4671_LOUT2_SIGNAL_SELECT, 5, 1, 0),
208 };
209 
210 static const struct snd_kcontrol_new ak4671_rout2_mixer_controls[] = {
211 	SOC_DAPM_SINGLE("DACHR", AK4671_ROUT2_SIGNAL_SELECT, 0, 1, 0),
212 	SOC_DAPM_SINGLE("RINH1", AK4671_ROUT2_SIGNAL_SELECT, 1, 1, 0),
213 	SOC_DAPM_SINGLE("RINH2", AK4671_ROUT2_SIGNAL_SELECT, 2, 1, 0),
214 	SOC_DAPM_SINGLE("RINH3", AK4671_ROUT2_SIGNAL_SELECT, 3, 1, 0),
215 	SOC_DAPM_SINGLE("RINH4", AK4671_ROUT2_SIGNAL_SELECT, 4, 1, 0),
216 	SOC_DAPM_SINGLE("LOOPHR", AK4671_ROUT2_SIGNAL_SELECT, 5, 1, 0),
217 };
218 
219 static const struct snd_kcontrol_new ak4671_lout3_mixer_controls[] = {
220 	SOC_DAPM_SINGLE("DACSL", AK4671_LOUT3_SIGNAL_SELECT, 0, 1, 0),
221 	SOC_DAPM_SINGLE("LINS1", AK4671_LOUT3_SIGNAL_SELECT, 1, 1, 0),
222 	SOC_DAPM_SINGLE("LINS2", AK4671_LOUT3_SIGNAL_SELECT, 2, 1, 0),
223 	SOC_DAPM_SINGLE("LINS3", AK4671_LOUT3_SIGNAL_SELECT, 3, 1, 0),
224 	SOC_DAPM_SINGLE("LINS4", AK4671_LOUT3_SIGNAL_SELECT, 4, 1, 0),
225 	SOC_DAPM_SINGLE("LOOPSL", AK4671_LOUT3_SIGNAL_SELECT, 5, 1, 0),
226 };
227 
228 static const struct snd_kcontrol_new ak4671_rout3_mixer_controls[] = {
229 	SOC_DAPM_SINGLE("DACSR", AK4671_ROUT3_SIGNAL_SELECT, 0, 1, 0),
230 	SOC_DAPM_SINGLE("RINS1", AK4671_ROUT3_SIGNAL_SELECT, 1, 1, 0),
231 	SOC_DAPM_SINGLE("RINS2", AK4671_ROUT3_SIGNAL_SELECT, 2, 1, 0),
232 	SOC_DAPM_SINGLE("RINS3", AK4671_ROUT3_SIGNAL_SELECT, 3, 1, 0),
233 	SOC_DAPM_SINGLE("RINS4", AK4671_ROUT3_SIGNAL_SELECT, 4, 1, 0),
234 	SOC_DAPM_SINGLE("LOOPSR", AK4671_ROUT3_SIGNAL_SELECT, 5, 1, 0),
235 };
236 
237 /* Input MUXs */
238 static const char *ak4671_lin_mux_texts[] =
239 		{"LIN1", "LIN2", "LIN3", "LIN4"};
240 static SOC_ENUM_SINGLE_DECL(ak4671_lin_mux_enum,
241 			    AK4671_MIC_SIGNAL_SELECT, 0,
242 			    ak4671_lin_mux_texts);
243 static const struct snd_kcontrol_new ak4671_lin_mux_control =
244 	SOC_DAPM_ENUM("Route", ak4671_lin_mux_enum);
245 
246 static const char *ak4671_rin_mux_texts[] =
247 		{"RIN1", "RIN2", "RIN3", "RIN4"};
248 static SOC_ENUM_SINGLE_DECL(ak4671_rin_mux_enum,
249 			    AK4671_MIC_SIGNAL_SELECT, 2,
250 			    ak4671_rin_mux_texts);
251 static const struct snd_kcontrol_new ak4671_rin_mux_control =
252 	SOC_DAPM_ENUM("Route", ak4671_rin_mux_enum);
253 
254 static const struct snd_soc_dapm_widget ak4671_dapm_widgets[] = {
255 	/* Inputs */
256 	SND_SOC_DAPM_INPUT("LIN1"),
257 	SND_SOC_DAPM_INPUT("RIN1"),
258 	SND_SOC_DAPM_INPUT("LIN2"),
259 	SND_SOC_DAPM_INPUT("RIN2"),
260 	SND_SOC_DAPM_INPUT("LIN3"),
261 	SND_SOC_DAPM_INPUT("RIN3"),
262 	SND_SOC_DAPM_INPUT("LIN4"),
263 	SND_SOC_DAPM_INPUT("RIN4"),
264 
265 	/* Outputs */
266 	SND_SOC_DAPM_OUTPUT("LOUT1"),
267 	SND_SOC_DAPM_OUTPUT("ROUT1"),
268 	SND_SOC_DAPM_OUTPUT("LOUT2"),
269 	SND_SOC_DAPM_OUTPUT("ROUT2"),
270 	SND_SOC_DAPM_OUTPUT("LOUT3"),
271 	SND_SOC_DAPM_OUTPUT("ROUT3"),
272 
273 	/* DAC */
274 	SND_SOC_DAPM_DAC("DAC Left", "Left HiFi Playback",
275 			AK4671_AD_DA_POWER_MANAGEMENT, 6, 0),
276 	SND_SOC_DAPM_DAC("DAC Right", "Right HiFi Playback",
277 			AK4671_AD_DA_POWER_MANAGEMENT, 7, 0),
278 
279 	/* ADC */
280 	SND_SOC_DAPM_ADC("ADC Left", "Left HiFi Capture",
281 			AK4671_AD_DA_POWER_MANAGEMENT, 4, 0),
282 	SND_SOC_DAPM_ADC("ADC Right", "Right HiFi Capture",
283 			AK4671_AD_DA_POWER_MANAGEMENT, 5, 0),
284 
285 	/* PGA */
286 	SND_SOC_DAPM_PGA("LOUT2 Mix Amp",
287 			AK4671_LOUT2_POWER_MANAGERMENT, 5, 0, NULL, 0),
288 	SND_SOC_DAPM_PGA("ROUT2 Mix Amp",
289 			AK4671_LOUT2_POWER_MANAGERMENT, 6, 0, NULL, 0),
290 
291 	SND_SOC_DAPM_PGA("LIN1 Mixing Circuit",
292 			AK4671_MIXING_POWER_MANAGEMENT1, 0, 0, NULL, 0),
293 	SND_SOC_DAPM_PGA("RIN1 Mixing Circuit",
294 			AK4671_MIXING_POWER_MANAGEMENT1, 1, 0, NULL, 0),
295 	SND_SOC_DAPM_PGA("LIN2 Mixing Circuit",
296 			AK4671_MIXING_POWER_MANAGEMENT1, 2, 0, NULL, 0),
297 	SND_SOC_DAPM_PGA("RIN2 Mixing Circuit",
298 			AK4671_MIXING_POWER_MANAGEMENT1, 3, 0, NULL, 0),
299 	SND_SOC_DAPM_PGA("LIN3 Mixing Circuit",
300 			AK4671_MIXING_POWER_MANAGEMENT1, 4, 0, NULL, 0),
301 	SND_SOC_DAPM_PGA("RIN3 Mixing Circuit",
302 			AK4671_MIXING_POWER_MANAGEMENT1, 5, 0, NULL, 0),
303 	SND_SOC_DAPM_PGA("LIN4 Mixing Circuit",
304 			AK4671_MIXING_POWER_MANAGEMENT1, 6, 0, NULL, 0),
305 	SND_SOC_DAPM_PGA("RIN4 Mixing Circuit",
306 			AK4671_MIXING_POWER_MANAGEMENT1, 7, 0, NULL, 0),
307 
308 	/* Output Mixers */
309 	SND_SOC_DAPM_MIXER("LOUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 0, 0,
310 			&ak4671_lout1_mixer_controls[0],
311 			ARRAY_SIZE(ak4671_lout1_mixer_controls)),
312 	SND_SOC_DAPM_MIXER("ROUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 1, 0,
313 			&ak4671_rout1_mixer_controls[0],
314 			ARRAY_SIZE(ak4671_rout1_mixer_controls)),
315 	SND_SOC_DAPM_MIXER_E("LOUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
316 			0, 0, &ak4671_lout2_mixer_controls[0],
317 			ARRAY_SIZE(ak4671_lout2_mixer_controls),
318 			ak4671_out2_event,
319 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
320 	SND_SOC_DAPM_MIXER_E("ROUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
321 			1, 0, &ak4671_rout2_mixer_controls[0],
322 			ARRAY_SIZE(ak4671_rout2_mixer_controls),
323 			ak4671_out2_event,
324 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
325 	SND_SOC_DAPM_MIXER("LOUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 0, 0,
326 			&ak4671_lout3_mixer_controls[0],
327 			ARRAY_SIZE(ak4671_lout3_mixer_controls)),
328 	SND_SOC_DAPM_MIXER("ROUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 1, 0,
329 			&ak4671_rout3_mixer_controls[0],
330 			ARRAY_SIZE(ak4671_rout3_mixer_controls)),
331 
332 	/* Input MUXs */
333 	SND_SOC_DAPM_MUX("LIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 2, 0,
334 			&ak4671_lin_mux_control),
335 	SND_SOC_DAPM_MUX("RIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 3, 0,
336 			&ak4671_rin_mux_control),
337 
338 	/* Mic Power */
339 	SND_SOC_DAPM_MICBIAS("Mic Bias", AK4671_AD_DA_POWER_MANAGEMENT, 1, 0),
340 
341 	/* Supply */
342 	SND_SOC_DAPM_SUPPLY("PMPLL", AK4671_PLL_MODE_SELECT1, 0, 0, NULL, 0),
343 };
344 
345 static const struct snd_soc_dapm_route ak4671_intercon[] = {
346 	{"DAC Left", NULL, "PMPLL"},
347 	{"DAC Right", NULL, "PMPLL"},
348 	{"ADC Left", NULL, "PMPLL"},
349 	{"ADC Right", NULL, "PMPLL"},
350 
351 	/* Outputs */
352 	{"LOUT1", NULL, "LOUT1 Mixer"},
353 	{"ROUT1", NULL, "ROUT1 Mixer"},
354 	{"LOUT2", NULL, "LOUT2 Mix Amp"},
355 	{"ROUT2", NULL, "ROUT2 Mix Amp"},
356 	{"LOUT3", NULL, "LOUT3 Mixer"},
357 	{"ROUT3", NULL, "ROUT3 Mixer"},
358 
359 	{"LOUT1 Mixer", "DACL", "DAC Left"},
360 	{"ROUT1 Mixer", "DACR", "DAC Right"},
361 	{"LOUT2 Mixer", "DACHL", "DAC Left"},
362 	{"ROUT2 Mixer", "DACHR", "DAC Right"},
363 	{"LOUT2 Mix Amp", NULL, "LOUT2 Mixer"},
364 	{"ROUT2 Mix Amp", NULL, "ROUT2 Mixer"},
365 	{"LOUT3 Mixer", "DACSL", "DAC Left"},
366 	{"ROUT3 Mixer", "DACSR", "DAC Right"},
367 
368 	/* Inputs */
369 	{"LIN MUX", "LIN1", "LIN1"},
370 	{"LIN MUX", "LIN2", "LIN2"},
371 	{"LIN MUX", "LIN3", "LIN3"},
372 	{"LIN MUX", "LIN4", "LIN4"},
373 
374 	{"RIN MUX", "RIN1", "RIN1"},
375 	{"RIN MUX", "RIN2", "RIN2"},
376 	{"RIN MUX", "RIN3", "RIN3"},
377 	{"RIN MUX", "RIN4", "RIN4"},
378 
379 	{"LIN1", NULL, "Mic Bias"},
380 	{"RIN1", NULL, "Mic Bias"},
381 	{"LIN2", NULL, "Mic Bias"},
382 	{"RIN2", NULL, "Mic Bias"},
383 
384 	{"ADC Left", NULL, "LIN MUX"},
385 	{"ADC Right", NULL, "RIN MUX"},
386 
387 	/* Analog Loops */
388 	{"LIN1 Mixing Circuit", NULL, "LIN1"},
389 	{"RIN1 Mixing Circuit", NULL, "RIN1"},
390 	{"LIN2 Mixing Circuit", NULL, "LIN2"},
391 	{"RIN2 Mixing Circuit", NULL, "RIN2"},
392 	{"LIN3 Mixing Circuit", NULL, "LIN3"},
393 	{"RIN3 Mixing Circuit", NULL, "RIN3"},
394 	{"LIN4 Mixing Circuit", NULL, "LIN4"},
395 	{"RIN4 Mixing Circuit", NULL, "RIN4"},
396 
397 	{"LOUT1 Mixer", "LINL1", "LIN1 Mixing Circuit"},
398 	{"ROUT1 Mixer", "RINR1", "RIN1 Mixing Circuit"},
399 	{"LOUT2 Mixer", "LINH1", "LIN1 Mixing Circuit"},
400 	{"ROUT2 Mixer", "RINH1", "RIN1 Mixing Circuit"},
401 	{"LOUT3 Mixer", "LINS1", "LIN1 Mixing Circuit"},
402 	{"ROUT3 Mixer", "RINS1", "RIN1 Mixing Circuit"},
403 
404 	{"LOUT1 Mixer", "LINL2", "LIN2 Mixing Circuit"},
405 	{"ROUT1 Mixer", "RINR2", "RIN2 Mixing Circuit"},
406 	{"LOUT2 Mixer", "LINH2", "LIN2 Mixing Circuit"},
407 	{"ROUT2 Mixer", "RINH2", "RIN2 Mixing Circuit"},
408 	{"LOUT3 Mixer", "LINS2", "LIN2 Mixing Circuit"},
409 	{"ROUT3 Mixer", "RINS2", "RIN2 Mixing Circuit"},
410 
411 	{"LOUT1 Mixer", "LINL3", "LIN3 Mixing Circuit"},
412 	{"ROUT1 Mixer", "RINR3", "RIN3 Mixing Circuit"},
413 	{"LOUT2 Mixer", "LINH3", "LIN3 Mixing Circuit"},
414 	{"ROUT2 Mixer", "RINH3", "RIN3 Mixing Circuit"},
415 	{"LOUT3 Mixer", "LINS3", "LIN3 Mixing Circuit"},
416 	{"ROUT3 Mixer", "RINS3", "RIN3 Mixing Circuit"},
417 
418 	{"LOUT1 Mixer", "LINL4", "LIN4 Mixing Circuit"},
419 	{"ROUT1 Mixer", "RINR4", "RIN4 Mixing Circuit"},
420 	{"LOUT2 Mixer", "LINH4", "LIN4 Mixing Circuit"},
421 	{"ROUT2 Mixer", "RINH4", "RIN4 Mixing Circuit"},
422 	{"LOUT3 Mixer", "LINS4", "LIN4 Mixing Circuit"},
423 	{"ROUT3 Mixer", "RINS4", "RIN4 Mixing Circuit"},
424 };
425 
426 static int ak4671_hw_params(struct snd_pcm_substream *substream,
427 		struct snd_pcm_hw_params *params,
428 		struct snd_soc_dai *dai)
429 {
430 	struct snd_soc_codec *codec = dai->codec;
431 	u8 fs;
432 
433 	fs = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
434 	fs &= ~AK4671_FS;
435 
436 	switch (params_rate(params)) {
437 	case 8000:
438 		fs |= AK4671_FS_8KHZ;
439 		break;
440 	case 12000:
441 		fs |= AK4671_FS_12KHZ;
442 		break;
443 	case 16000:
444 		fs |= AK4671_FS_16KHZ;
445 		break;
446 	case 24000:
447 		fs |= AK4671_FS_24KHZ;
448 		break;
449 	case 11025:
450 		fs |= AK4671_FS_11_025KHZ;
451 		break;
452 	case 22050:
453 		fs |= AK4671_FS_22_05KHZ;
454 		break;
455 	case 32000:
456 		fs |= AK4671_FS_32KHZ;
457 		break;
458 	case 44100:
459 		fs |= AK4671_FS_44_1KHZ;
460 		break;
461 	case 48000:
462 		fs |= AK4671_FS_48KHZ;
463 		break;
464 	default:
465 		return -EINVAL;
466 	}
467 
468 	snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, fs);
469 
470 	return 0;
471 }
472 
473 static int ak4671_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
474 		unsigned int freq, int dir)
475 {
476 	struct snd_soc_codec *codec = dai->codec;
477 	u8 pll;
478 
479 	pll = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
480 	pll &= ~AK4671_PLL;
481 
482 	switch (freq) {
483 	case 11289600:
484 		pll |= AK4671_PLL_11_2896MHZ;
485 		break;
486 	case 12000000:
487 		pll |= AK4671_PLL_12MHZ;
488 		break;
489 	case 12288000:
490 		pll |= AK4671_PLL_12_288MHZ;
491 		break;
492 	case 13000000:
493 		pll |= AK4671_PLL_13MHZ;
494 		break;
495 	case 13500000:
496 		pll |= AK4671_PLL_13_5MHZ;
497 		break;
498 	case 19200000:
499 		pll |= AK4671_PLL_19_2MHZ;
500 		break;
501 	case 24000000:
502 		pll |= AK4671_PLL_24MHZ;
503 		break;
504 	case 26000000:
505 		pll |= AK4671_PLL_26MHZ;
506 		break;
507 	case 27000000:
508 		pll |= AK4671_PLL_27MHZ;
509 		break;
510 	default:
511 		return -EINVAL;
512 	}
513 
514 	snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, pll);
515 
516 	return 0;
517 }
518 
519 static int ak4671_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
520 {
521 	struct snd_soc_codec *codec = dai->codec;
522 	u8 mode;
523 	u8 format;
524 
525 	/* set master/slave audio interface */
526 	mode = snd_soc_read(codec, AK4671_PLL_MODE_SELECT1);
527 
528 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
529 	case SND_SOC_DAIFMT_CBM_CFM:
530 		mode |= AK4671_M_S;
531 		break;
532 	case SND_SOC_DAIFMT_CBM_CFS:
533 		mode &= ~(AK4671_M_S);
534 		break;
535 	default:
536 		return -EINVAL;
537 	}
538 
539 	/* interface format */
540 	format = snd_soc_read(codec, AK4671_FORMAT_SELECT);
541 	format &= ~AK4671_DIF;
542 
543 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
544 	case SND_SOC_DAIFMT_I2S:
545 		format |= AK4671_DIF_I2S_MODE;
546 		break;
547 	case SND_SOC_DAIFMT_LEFT_J:
548 		format |= AK4671_DIF_MSB_MODE;
549 		break;
550 	case SND_SOC_DAIFMT_DSP_A:
551 		format |= AK4671_DIF_DSP_MODE;
552 		format |= AK4671_BCKP;
553 		format |= AK4671_MSBS;
554 		break;
555 	default:
556 		return -EINVAL;
557 	}
558 
559 	/* set mode and format */
560 	snd_soc_write(codec, AK4671_PLL_MODE_SELECT1, mode);
561 	snd_soc_write(codec, AK4671_FORMAT_SELECT, format);
562 
563 	return 0;
564 }
565 
566 static int ak4671_set_bias_level(struct snd_soc_codec *codec,
567 		enum snd_soc_bias_level level)
568 {
569 	switch (level) {
570 	case SND_SOC_BIAS_ON:
571 	case SND_SOC_BIAS_PREPARE:
572 	case SND_SOC_BIAS_STANDBY:
573 		snd_soc_update_bits(codec, AK4671_AD_DA_POWER_MANAGEMENT,
574 				    AK4671_PMVCM, AK4671_PMVCM);
575 		break;
576 	case SND_SOC_BIAS_OFF:
577 		snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT, 0x00);
578 		break;
579 	}
580 	codec->dapm.bias_level = level;
581 	return 0;
582 }
583 
584 #define AK4671_RATES		(SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
585 				SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
586 				SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
587 				SNDRV_PCM_RATE_48000)
588 
589 #define AK4671_FORMATS		SNDRV_PCM_FMTBIT_S16_LE
590 
591 static const struct snd_soc_dai_ops ak4671_dai_ops = {
592 	.hw_params	= ak4671_hw_params,
593 	.set_sysclk	= ak4671_set_dai_sysclk,
594 	.set_fmt	= ak4671_set_dai_fmt,
595 };
596 
597 static struct snd_soc_dai_driver ak4671_dai = {
598 	.name = "ak4671-hifi",
599 	.playback = {
600 		.stream_name = "Playback",
601 		.channels_min = 1,
602 		.channels_max = 2,
603 		.rates = AK4671_RATES,
604 		.formats = AK4671_FORMATS,},
605 	.capture = {
606 		.stream_name = "Capture",
607 		.channels_min = 1,
608 		.channels_max = 2,
609 		.rates = AK4671_RATES,
610 		.formats = AK4671_FORMATS,},
611 	.ops = &ak4671_dai_ops,
612 };
613 
614 static struct snd_soc_codec_driver soc_codec_dev_ak4671 = {
615 	.set_bias_level = ak4671_set_bias_level,
616 	.controls = ak4671_snd_controls,
617 	.num_controls = ARRAY_SIZE(ak4671_snd_controls),
618 	.dapm_widgets = ak4671_dapm_widgets,
619 	.num_dapm_widgets = ARRAY_SIZE(ak4671_dapm_widgets),
620 	.dapm_routes = ak4671_intercon,
621 	.num_dapm_routes = ARRAY_SIZE(ak4671_intercon),
622 };
623 
624 static const struct regmap_config ak4671_regmap = {
625 	.reg_bits = 8,
626 	.val_bits = 8,
627 
628 	.max_register = AK4671_SAR_ADC_CONTROL,
629 	.reg_defaults = ak4671_reg_defaults,
630 	.num_reg_defaults = ARRAY_SIZE(ak4671_reg_defaults),
631 	.cache_type = REGCACHE_RBTREE,
632 };
633 
634 static int ak4671_i2c_probe(struct i2c_client *client,
635 			    const struct i2c_device_id *id)
636 {
637 	struct regmap *regmap;
638 	int ret;
639 
640 	regmap = devm_regmap_init_i2c(client, &ak4671_regmap);
641 	if (IS_ERR(regmap)) {
642 		ret = PTR_ERR(regmap);
643 		dev_err(&client->dev, "Failed to create regmap: %d\n", ret);
644 		return ret;
645 	}
646 
647 	ret = snd_soc_register_codec(&client->dev,
648 			&soc_codec_dev_ak4671, &ak4671_dai, 1);
649 	return ret;
650 }
651 
652 static int ak4671_i2c_remove(struct i2c_client *client)
653 {
654 	snd_soc_unregister_codec(&client->dev);
655 	return 0;
656 }
657 
658 static const struct i2c_device_id ak4671_i2c_id[] = {
659 	{ "ak4671", 0 },
660 	{ }
661 };
662 MODULE_DEVICE_TABLE(i2c, ak4671_i2c_id);
663 
664 static struct i2c_driver ak4671_i2c_driver = {
665 	.driver = {
666 		.name = "ak4671-codec",
667 		.owner = THIS_MODULE,
668 	},
669 	.probe = ak4671_i2c_probe,
670 	.remove = ak4671_i2c_remove,
671 	.id_table = ak4671_i2c_id,
672 };
673 
674 module_i2c_driver(ak4671_i2c_driver);
675 
676 MODULE_DESCRIPTION("ASoC AK4671 codec driver");
677 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
678 MODULE_LICENSE("GPL");
679