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TOMOYO Linux Cross Reference
Linux/sound/soc/codecs/ak4671.c

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  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_component *component = snd_soc_dapm_to_component(w->dapm);
167 
168         switch (event) {
169         case SND_SOC_DAPM_POST_PMU:
170                 snd_soc_component_update_bits(component, AK4671_LOUT2_POWER_MANAGERMENT,
171                                     AK4671_MUTEN, AK4671_MUTEN);
172                 break;
173         case SND_SOC_DAPM_PRE_PMD:
174                 snd_soc_component_update_bits(component, 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_component *component = dai->component;
431         u8 fs;
432 
433         fs = snd_soc_component_read32(component, 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_component_write(component, 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_component *component = dai->component;
477         u8 pll;
478 
479         pll = snd_soc_component_read32(component, 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_component_write(component, 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_component *component = dai->component;
522         u8 mode;
523         u8 format;
524 
525         /* set master/slave audio interface */
526         mode = snd_soc_component_read32(component, 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_component_read32(component, 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_component_write(component, AK4671_PLL_MODE_SELECT1, mode);
561         snd_soc_component_write(component, AK4671_FORMAT_SELECT, format);
562 
563         return 0;
564 }
565 
566 static int ak4671_set_bias_level(struct snd_soc_component *component,
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_component_update_bits(component, AK4671_AD_DA_POWER_MANAGEMENT,
574                                     AK4671_PMVCM, AK4671_PMVCM);
575                 break;
576         case SND_SOC_BIAS_OFF:
577                 snd_soc_component_write(component, AK4671_AD_DA_POWER_MANAGEMENT, 0x00);
578                 break;
579         }
580         return 0;
581 }
582 
583 #define AK4671_RATES            (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
584                                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
585                                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
586                                 SNDRV_PCM_RATE_48000)
587 
588 #define AK4671_FORMATS          SNDRV_PCM_FMTBIT_S16_LE
589 
590 static const struct snd_soc_dai_ops ak4671_dai_ops = {
591         .hw_params      = ak4671_hw_params,
592         .set_sysclk     = ak4671_set_dai_sysclk,
593         .set_fmt        = ak4671_set_dai_fmt,
594 };
595 
596 static struct snd_soc_dai_driver ak4671_dai = {
597         .name = "ak4671-hifi",
598         .playback = {
599                 .stream_name = "Playback",
600                 .channels_min = 1,
601                 .channels_max = 2,
602                 .rates = AK4671_RATES,
603                 .formats = AK4671_FORMATS,},
604         .capture = {
605                 .stream_name = "Capture",
606                 .channels_min = 1,
607                 .channels_max = 2,
608                 .rates = AK4671_RATES,
609                 .formats = AK4671_FORMATS,},
610         .ops = &ak4671_dai_ops,
611 };
612 
613 static const struct snd_soc_component_driver soc_component_dev_ak4671 = {
614         .set_bias_level         = ak4671_set_bias_level,
615         .controls               = ak4671_snd_controls,
616         .num_controls           = ARRAY_SIZE(ak4671_snd_controls),
617         .dapm_widgets           = ak4671_dapm_widgets,
618         .num_dapm_widgets       = ARRAY_SIZE(ak4671_dapm_widgets),
619         .dapm_routes            = ak4671_intercon,
620         .num_dapm_routes        = ARRAY_SIZE(ak4671_intercon),
621         .idle_bias_on           = 1,
622         .use_pmdown_time        = 1,
623         .endianness             = 1,
624         .non_legacy_dai_naming  = 1,
625 };
626 
627 static const struct regmap_config ak4671_regmap = {
628         .reg_bits = 8,
629         .val_bits = 8,
630 
631         .max_register = AK4671_SAR_ADC_CONTROL,
632         .reg_defaults = ak4671_reg_defaults,
633         .num_reg_defaults = ARRAY_SIZE(ak4671_reg_defaults),
634         .cache_type = REGCACHE_RBTREE,
635 };
636 
637 static int ak4671_i2c_probe(struct i2c_client *client,
638                             const struct i2c_device_id *id)
639 {
640         struct regmap *regmap;
641         int ret;
642 
643         regmap = devm_regmap_init_i2c(client, &ak4671_regmap);
644         if (IS_ERR(regmap)) {
645                 ret = PTR_ERR(regmap);
646                 dev_err(&client->dev, "Failed to create regmap: %d\n", ret);
647                 return ret;
648         }
649 
650         ret = devm_snd_soc_register_component(&client->dev,
651                         &soc_component_dev_ak4671, &ak4671_dai, 1);
652         return ret;
653 }
654 
655 static const struct i2c_device_id ak4671_i2c_id[] = {
656         { "ak4671", 0 },
657         { }
658 };
659 MODULE_DEVICE_TABLE(i2c, ak4671_i2c_id);
660 
661 static struct i2c_driver ak4671_i2c_driver = {
662         .driver = {
663                 .name = "ak4671-codec",
664         },
665         .probe = ak4671_i2c_probe,
666         .id_table = ak4671_i2c_id,
667 };
668 
669 module_i2c_driver(ak4671_i2c_driver);
670 
671 MODULE_DESCRIPTION("ASoC AK4671 codec driver");
672 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
673 MODULE_LICENSE("GPL");
674 

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