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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/slab.h>
 19 #include <sound/soc.h>
 20 #include <sound/initval.h>
 21 #include <sound/tlv.h>
 22 
 23 #include "ak4671.h"
 24 
 25 
 26 /* codec private data */
 27 struct ak4671_priv {
 28         enum snd_soc_control_type control_type;
 29 };
 30 
 31 /* ak4671 register cache & default register settings */
 32 static const u8 ak4671_reg[AK4671_CACHEREGNUM] = {
 33         0x00,   /* AK4671_AD_DA_POWER_MANAGEMENT        (0x00)  */
 34         0xf6,   /* AK4671_PLL_MODE_SELECT0              (0x01)  */
 35         0x00,   /* AK4671_PLL_MODE_SELECT1              (0x02)  */
 36         0x02,   /* AK4671_FORMAT_SELECT                 (0x03)  */
 37         0x00,   /* AK4671_MIC_SIGNAL_SELECT             (0x04)  */
 38         0x55,   /* AK4671_MIC_AMP_GAIN                  (0x05)  */
 39         0x00,   /* AK4671_MIXING_POWER_MANAGEMENT0      (0x06)  */
 40         0x00,   /* AK4671_MIXING_POWER_MANAGEMENT1      (0x07)  */
 41         0xb5,   /* AK4671_OUTPUT_VOLUME_CONTROL         (0x08)  */
 42         0x00,   /* AK4671_LOUT1_SIGNAL_SELECT           (0x09)  */
 43         0x00,   /* AK4671_ROUT1_SIGNAL_SELECT           (0x0a)  */
 44         0x00,   /* AK4671_LOUT2_SIGNAL_SELECT           (0x0b)  */
 45         0x00,   /* AK4671_ROUT2_SIGNAL_SELECT           (0x0c)  */
 46         0x00,   /* AK4671_LOUT3_SIGNAL_SELECT           (0x0d)  */
 47         0x00,   /* AK4671_ROUT3_SIGNAL_SELECT           (0x0e)  */
 48         0x00,   /* AK4671_LOUT1_POWER_MANAGERMENT       (0x0f)  */
 49         0x00,   /* AK4671_LOUT2_POWER_MANAGERMENT       (0x10)  */
 50         0x80,   /* AK4671_LOUT3_POWER_MANAGERMENT       (0x11)  */
 51         0x91,   /* AK4671_LCH_INPUT_VOLUME_CONTROL      (0x12)  */
 52         0x91,   /* AK4671_RCH_INPUT_VOLUME_CONTROL      (0x13)  */
 53         0xe1,   /* AK4671_ALC_REFERENCE_SELECT          (0x14)  */
 54         0x00,   /* AK4671_DIGITAL_MIXING_CONTROL        (0x15)  */
 55         0x00,   /* AK4671_ALC_TIMER_SELECT              (0x16)  */
 56         0x00,   /* AK4671_ALC_MODE_CONTROL              (0x17)  */
 57         0x02,   /* AK4671_MODE_CONTROL1                 (0x18)  */
 58         0x01,   /* AK4671_MODE_CONTROL2                 (0x19)  */
 59         0x18,   /* AK4671_LCH_OUTPUT_VOLUME_CONTROL     (0x1a)  */
 60         0x18,   /* AK4671_RCH_OUTPUT_VOLUME_CONTROL     (0x1b)  */
 61         0x00,   /* AK4671_SIDETONE_A_CONTROL            (0x1c)  */
 62         0x02,   /* AK4671_DIGITAL_FILTER_SELECT         (0x1d)  */
 63         0x00,   /* AK4671_FIL3_COEFFICIENT0             (0x1e)  */
 64         0x00,   /* AK4671_FIL3_COEFFICIENT1             (0x1f)  */
 65         0x00,   /* AK4671_FIL3_COEFFICIENT2             (0x20)  */
 66         0x00,   /* AK4671_FIL3_COEFFICIENT3             (0x21)  */
 67         0x00,   /* AK4671_EQ_COEFFICIENT0               (0x22)  */
 68         0x00,   /* AK4671_EQ_COEFFICIENT1               (0x23)  */
 69         0x00,   /* AK4671_EQ_COEFFICIENT2               (0x24)  */
 70         0x00,   /* AK4671_EQ_COEFFICIENT3               (0x25)  */
 71         0x00,   /* AK4671_EQ_COEFFICIENT4               (0x26)  */
 72         0x00,   /* AK4671_EQ_COEFFICIENT5               (0x27)  */
 73         0xa9,   /* AK4671_FIL1_COEFFICIENT0             (0x28)  */
 74         0x1f,   /* AK4671_FIL1_COEFFICIENT1             (0x29)  */
 75         0xad,   /* AK4671_FIL1_COEFFICIENT2             (0x2a)  */
 76         0x20,   /* AK4671_FIL1_COEFFICIENT3             (0x2b)  */
 77         0x00,   /* AK4671_FIL2_COEFFICIENT0             (0x2c)  */
 78         0x00,   /* AK4671_FIL2_COEFFICIENT1             (0x2d)  */
 79         0x00,   /* AK4671_FIL2_COEFFICIENT2             (0x2e)  */
 80         0x00,   /* AK4671_FIL2_COEFFICIENT3             (0x2f)  */
 81         0x00,   /* AK4671_DIGITAL_FILTER_SELECT2        (0x30)  */
 82         0x00,   /* this register not used                       */
 83         0x00,   /* AK4671_E1_COEFFICIENT0               (0x32)  */
 84         0x00,   /* AK4671_E1_COEFFICIENT1               (0x33)  */
 85         0x00,   /* AK4671_E1_COEFFICIENT2               (0x34)  */
 86         0x00,   /* AK4671_E1_COEFFICIENT3               (0x35)  */
 87         0x00,   /* AK4671_E1_COEFFICIENT4               (0x36)  */
 88         0x00,   /* AK4671_E1_COEFFICIENT5               (0x37)  */
 89         0x00,   /* AK4671_E2_COEFFICIENT0               (0x38)  */
 90         0x00,   /* AK4671_E2_COEFFICIENT1               (0x39)  */
 91         0x00,   /* AK4671_E2_COEFFICIENT2               (0x3a)  */
 92         0x00,   /* AK4671_E2_COEFFICIENT3               (0x3b)  */
 93         0x00,   /* AK4671_E2_COEFFICIENT4               (0x3c)  */
 94         0x00,   /* AK4671_E2_COEFFICIENT5               (0x3d)  */
 95         0x00,   /* AK4671_E3_COEFFICIENT0               (0x3e)  */
 96         0x00,   /* AK4671_E3_COEFFICIENT1               (0x3f)  */
 97         0x00,   /* AK4671_E3_COEFFICIENT2               (0x40)  */
 98         0x00,   /* AK4671_E3_COEFFICIENT3               (0x41)  */
 99         0x00,   /* AK4671_E3_COEFFICIENT4               (0x42)  */
100         0x00,   /* AK4671_E3_COEFFICIENT5               (0x43)  */
101         0x00,   /* AK4671_E4_COEFFICIENT0               (0x44)  */
102         0x00,   /* AK4671_E4_COEFFICIENT1               (0x45)  */
103         0x00,   /* AK4671_E4_COEFFICIENT2               (0x46)  */
104         0x00,   /* AK4671_E4_COEFFICIENT3               (0x47)  */
105         0x00,   /* AK4671_E4_COEFFICIENT4               (0x48)  */
106         0x00,   /* AK4671_E4_COEFFICIENT5               (0x49)  */
107         0x00,   /* AK4671_E5_COEFFICIENT0               (0x4a)  */
108         0x00,   /* AK4671_E5_COEFFICIENT1               (0x4b)  */
109         0x00,   /* AK4671_E5_COEFFICIENT2               (0x4c)  */
110         0x00,   /* AK4671_E5_COEFFICIENT3               (0x4d)  */
111         0x00,   /* AK4671_E5_COEFFICIENT4               (0x4e)  */
112         0x00,   /* AK4671_E5_COEFFICIENT5               (0x4f)  */
113         0x88,   /* AK4671_EQ_CONTROL_250HZ_100HZ        (0x50)  */
114         0x88,   /* AK4671_EQ_CONTROL_3500HZ_1KHZ        (0x51)  */
115         0x08,   /* AK4671_EQ_CONTRO_10KHZ               (0x52)  */
116         0x00,   /* AK4671_PCM_IF_CONTROL0               (0x53)  */
117         0x00,   /* AK4671_PCM_IF_CONTROL1               (0x54)  */
118         0x00,   /* AK4671_PCM_IF_CONTROL2               (0x55)  */
119         0x18,   /* AK4671_DIGITAL_VOLUME_B_CONTROL      (0x56)  */
120         0x18,   /* AK4671_DIGITAL_VOLUME_C_CONTROL      (0x57)  */
121         0x00,   /* AK4671_SIDETONE_VOLUME_CONTROL       (0x58)  */
122         0x00,   /* AK4671_DIGITAL_MIXING_CONTROL2       (0x59)  */
123         0x00,   /* AK4671_SAR_ADC_CONTROL               (0x5a)  */
124 };
125 
126 /*
127  * LOUT1/ROUT1 output volume control:
128  * from -24 to 6 dB in 6 dB steps (mute instead of -30 dB)
129  */
130 static DECLARE_TLV_DB_SCALE(out1_tlv, -3000, 600, 1);
131 
132 /*
133  * LOUT2/ROUT2 output volume control:
134  * from -33 to 6 dB in 3 dB steps (mute instead of -33 dB)
135  */
136 static DECLARE_TLV_DB_SCALE(out2_tlv, -3300, 300, 1);
137 
138 /*
139  * LOUT3/ROUT3 output volume control:
140  * from -6 to 3 dB in 3 dB steps
141  */
142 static DECLARE_TLV_DB_SCALE(out3_tlv, -600, 300, 0);
143 
144 /*
145  * Mic amp gain control:
146  * from -15 to 30 dB in 3 dB steps
147  * REVISIT: The actual min value(0x01) is -12 dB and the reg value 0x00 is not
148  * available
149  */
150 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -1500, 300, 0);
151 
152 static const struct snd_kcontrol_new ak4671_snd_controls[] = {
153         /* Common playback gain controls */
154         SOC_SINGLE_TLV("Line Output1 Playback Volume",
155                         AK4671_OUTPUT_VOLUME_CONTROL, 0, 0x6, 0, out1_tlv),
156         SOC_SINGLE_TLV("Headphone Output2 Playback Volume",
157                         AK4671_OUTPUT_VOLUME_CONTROL, 4, 0xd, 0, out2_tlv),
158         SOC_SINGLE_TLV("Line Output3 Playback Volume",
159                         AK4671_LOUT3_POWER_MANAGERMENT, 6, 0x3, 0, out3_tlv),
160 
161         /* Common capture gain controls */
162         SOC_DOUBLE_TLV("Mic Amp Capture Volume",
163                         AK4671_MIC_AMP_GAIN, 0, 4, 0xf, 0, mic_amp_tlv),
164 };
165 
166 /* event handlers */
167 static int ak4671_out2_event(struct snd_soc_dapm_widget *w,
168                 struct snd_kcontrol *kcontrol, int event)
169 {
170         struct snd_soc_codec *codec = w->codec;
171 
172         switch (event) {
173         case SND_SOC_DAPM_POST_PMU:
174                 snd_soc_update_bits(codec, AK4671_LOUT2_POWER_MANAGERMENT,
175                                     AK4671_MUTEN, AK4671_MUTEN);
176                 break;
177         case SND_SOC_DAPM_PRE_PMD:
178                 snd_soc_update_bits(codec, AK4671_LOUT2_POWER_MANAGERMENT,
179                                     AK4671_MUTEN, 0);
180                 break;
181         }
182 
183         return 0;
184 }
185 
186 /* Output Mixers */
187 static const struct snd_kcontrol_new ak4671_lout1_mixer_controls[] = {
188         SOC_DAPM_SINGLE("DACL", AK4671_LOUT1_SIGNAL_SELECT, 0, 1, 0),
189         SOC_DAPM_SINGLE("LINL1", AK4671_LOUT1_SIGNAL_SELECT, 1, 1, 0),
190         SOC_DAPM_SINGLE("LINL2", AK4671_LOUT1_SIGNAL_SELECT, 2, 1, 0),
191         SOC_DAPM_SINGLE("LINL3", AK4671_LOUT1_SIGNAL_SELECT, 3, 1, 0),
192         SOC_DAPM_SINGLE("LINL4", AK4671_LOUT1_SIGNAL_SELECT, 4, 1, 0),
193         SOC_DAPM_SINGLE("LOOPL", AK4671_LOUT1_SIGNAL_SELECT, 5, 1, 0),
194 };
195 
196 static const struct snd_kcontrol_new ak4671_rout1_mixer_controls[] = {
197         SOC_DAPM_SINGLE("DACR", AK4671_ROUT1_SIGNAL_SELECT, 0, 1, 0),
198         SOC_DAPM_SINGLE("RINR1", AK4671_ROUT1_SIGNAL_SELECT, 1, 1, 0),
199         SOC_DAPM_SINGLE("RINR2", AK4671_ROUT1_SIGNAL_SELECT, 2, 1, 0),
200         SOC_DAPM_SINGLE("RINR3", AK4671_ROUT1_SIGNAL_SELECT, 3, 1, 0),
201         SOC_DAPM_SINGLE("RINR4", AK4671_ROUT1_SIGNAL_SELECT, 4, 1, 0),
202         SOC_DAPM_SINGLE("LOOPR", AK4671_ROUT1_SIGNAL_SELECT, 5, 1, 0),
203 };
204 
205 static const struct snd_kcontrol_new ak4671_lout2_mixer_controls[] = {
206         SOC_DAPM_SINGLE("DACHL", AK4671_LOUT2_SIGNAL_SELECT, 0, 1, 0),
207         SOC_DAPM_SINGLE("LINH1", AK4671_LOUT2_SIGNAL_SELECT, 1, 1, 0),
208         SOC_DAPM_SINGLE("LINH2", AK4671_LOUT2_SIGNAL_SELECT, 2, 1, 0),
209         SOC_DAPM_SINGLE("LINH3", AK4671_LOUT2_SIGNAL_SELECT, 3, 1, 0),
210         SOC_DAPM_SINGLE("LINH4", AK4671_LOUT2_SIGNAL_SELECT, 4, 1, 0),
211         SOC_DAPM_SINGLE("LOOPHL", AK4671_LOUT2_SIGNAL_SELECT, 5, 1, 0),
212 };
213 
214 static const struct snd_kcontrol_new ak4671_rout2_mixer_controls[] = {
215         SOC_DAPM_SINGLE("DACHR", AK4671_ROUT2_SIGNAL_SELECT, 0, 1, 0),
216         SOC_DAPM_SINGLE("RINH1", AK4671_ROUT2_SIGNAL_SELECT, 1, 1, 0),
217         SOC_DAPM_SINGLE("RINH2", AK4671_ROUT2_SIGNAL_SELECT, 2, 1, 0),
218         SOC_DAPM_SINGLE("RINH3", AK4671_ROUT2_SIGNAL_SELECT, 3, 1, 0),
219         SOC_DAPM_SINGLE("RINH4", AK4671_ROUT2_SIGNAL_SELECT, 4, 1, 0),
220         SOC_DAPM_SINGLE("LOOPHR", AK4671_ROUT2_SIGNAL_SELECT, 5, 1, 0),
221 };
222 
223 static const struct snd_kcontrol_new ak4671_lout3_mixer_controls[] = {
224         SOC_DAPM_SINGLE("DACSL", AK4671_LOUT3_SIGNAL_SELECT, 0, 1, 0),
225         SOC_DAPM_SINGLE("LINS1", AK4671_LOUT3_SIGNAL_SELECT, 1, 1, 0),
226         SOC_DAPM_SINGLE("LINS2", AK4671_LOUT3_SIGNAL_SELECT, 2, 1, 0),
227         SOC_DAPM_SINGLE("LINS3", AK4671_LOUT3_SIGNAL_SELECT, 3, 1, 0),
228         SOC_DAPM_SINGLE("LINS4", AK4671_LOUT3_SIGNAL_SELECT, 4, 1, 0),
229         SOC_DAPM_SINGLE("LOOPSL", AK4671_LOUT3_SIGNAL_SELECT, 5, 1, 0),
230 };
231 
232 static const struct snd_kcontrol_new ak4671_rout3_mixer_controls[] = {
233         SOC_DAPM_SINGLE("DACSR", AK4671_ROUT3_SIGNAL_SELECT, 0, 1, 0),
234         SOC_DAPM_SINGLE("RINS1", AK4671_ROUT3_SIGNAL_SELECT, 1, 1, 0),
235         SOC_DAPM_SINGLE("RINS2", AK4671_ROUT3_SIGNAL_SELECT, 2, 1, 0),
236         SOC_DAPM_SINGLE("RINS3", AK4671_ROUT3_SIGNAL_SELECT, 3, 1, 0),
237         SOC_DAPM_SINGLE("RINS4", AK4671_ROUT3_SIGNAL_SELECT, 4, 1, 0),
238         SOC_DAPM_SINGLE("LOOPSR", AK4671_ROUT3_SIGNAL_SELECT, 5, 1, 0),
239 };
240 
241 /* Input MUXs */
242 static const char *ak4671_lin_mux_texts[] =
243                 {"LIN1", "LIN2", "LIN3", "LIN4"};
244 static const struct soc_enum ak4671_lin_mux_enum =
245         SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 0,
246                         ARRAY_SIZE(ak4671_lin_mux_texts),
247                         ak4671_lin_mux_texts);
248 static const struct snd_kcontrol_new ak4671_lin_mux_control =
249         SOC_DAPM_ENUM("Route", ak4671_lin_mux_enum);
250 
251 static const char *ak4671_rin_mux_texts[] =
252                 {"RIN1", "RIN2", "RIN3", "RIN4"};
253 static const struct soc_enum ak4671_rin_mux_enum =
254         SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 2,
255                         ARRAY_SIZE(ak4671_rin_mux_texts),
256                         ak4671_rin_mux_texts);
257 static const struct snd_kcontrol_new ak4671_rin_mux_control =
258         SOC_DAPM_ENUM("Route", ak4671_rin_mux_enum);
259 
260 static const struct snd_soc_dapm_widget ak4671_dapm_widgets[] = {
261         /* Inputs */
262         SND_SOC_DAPM_INPUT("LIN1"),
263         SND_SOC_DAPM_INPUT("RIN1"),
264         SND_SOC_DAPM_INPUT("LIN2"),
265         SND_SOC_DAPM_INPUT("RIN2"),
266         SND_SOC_DAPM_INPUT("LIN3"),
267         SND_SOC_DAPM_INPUT("RIN3"),
268         SND_SOC_DAPM_INPUT("LIN4"),
269         SND_SOC_DAPM_INPUT("RIN4"),
270 
271         /* Outputs */
272         SND_SOC_DAPM_OUTPUT("LOUT1"),
273         SND_SOC_DAPM_OUTPUT("ROUT1"),
274         SND_SOC_DAPM_OUTPUT("LOUT2"),
275         SND_SOC_DAPM_OUTPUT("ROUT2"),
276         SND_SOC_DAPM_OUTPUT("LOUT3"),
277         SND_SOC_DAPM_OUTPUT("ROUT3"),
278 
279         /* DAC */
280         SND_SOC_DAPM_DAC("DAC Left", "Left HiFi Playback",
281                         AK4671_AD_DA_POWER_MANAGEMENT, 6, 0),
282         SND_SOC_DAPM_DAC("DAC Right", "Right HiFi Playback",
283                         AK4671_AD_DA_POWER_MANAGEMENT, 7, 0),
284 
285         /* ADC */
286         SND_SOC_DAPM_ADC("ADC Left", "Left HiFi Capture",
287                         AK4671_AD_DA_POWER_MANAGEMENT, 4, 0),
288         SND_SOC_DAPM_ADC("ADC Right", "Right HiFi Capture",
289                         AK4671_AD_DA_POWER_MANAGEMENT, 5, 0),
290 
291         /* PGA */
292         SND_SOC_DAPM_PGA("LOUT2 Mix Amp",
293                         AK4671_LOUT2_POWER_MANAGERMENT, 5, 0, NULL, 0),
294         SND_SOC_DAPM_PGA("ROUT2 Mix Amp",
295                         AK4671_LOUT2_POWER_MANAGERMENT, 6, 0, NULL, 0),
296 
297         SND_SOC_DAPM_PGA("LIN1 Mixing Circuit",
298                         AK4671_MIXING_POWER_MANAGEMENT1, 0, 0, NULL, 0),
299         SND_SOC_DAPM_PGA("RIN1 Mixing Circuit",
300                         AK4671_MIXING_POWER_MANAGEMENT1, 1, 0, NULL, 0),
301         SND_SOC_DAPM_PGA("LIN2 Mixing Circuit",
302                         AK4671_MIXING_POWER_MANAGEMENT1, 2, 0, NULL, 0),
303         SND_SOC_DAPM_PGA("RIN2 Mixing Circuit",
304                         AK4671_MIXING_POWER_MANAGEMENT1, 3, 0, NULL, 0),
305         SND_SOC_DAPM_PGA("LIN3 Mixing Circuit",
306                         AK4671_MIXING_POWER_MANAGEMENT1, 4, 0, NULL, 0),
307         SND_SOC_DAPM_PGA("RIN3 Mixing Circuit",
308                         AK4671_MIXING_POWER_MANAGEMENT1, 5, 0, NULL, 0),
309         SND_SOC_DAPM_PGA("LIN4 Mixing Circuit",
310                         AK4671_MIXING_POWER_MANAGEMENT1, 6, 0, NULL, 0),
311         SND_SOC_DAPM_PGA("RIN4 Mixing Circuit",
312                         AK4671_MIXING_POWER_MANAGEMENT1, 7, 0, NULL, 0),
313 
314         /* Output Mixers */
315         SND_SOC_DAPM_MIXER("LOUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 0, 0,
316                         &ak4671_lout1_mixer_controls[0],
317                         ARRAY_SIZE(ak4671_lout1_mixer_controls)),
318         SND_SOC_DAPM_MIXER("ROUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 1, 0,
319                         &ak4671_rout1_mixer_controls[0],
320                         ARRAY_SIZE(ak4671_rout1_mixer_controls)),
321         SND_SOC_DAPM_MIXER_E("LOUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
322                         0, 0, &ak4671_lout2_mixer_controls[0],
323                         ARRAY_SIZE(ak4671_lout2_mixer_controls),
324                         ak4671_out2_event,
325                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
326         SND_SOC_DAPM_MIXER_E("ROUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
327                         1, 0, &ak4671_rout2_mixer_controls[0],
328                         ARRAY_SIZE(ak4671_rout2_mixer_controls),
329                         ak4671_out2_event,
330                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
331         SND_SOC_DAPM_MIXER("LOUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 0, 0,
332                         &ak4671_lout3_mixer_controls[0],
333                         ARRAY_SIZE(ak4671_lout3_mixer_controls)),
334         SND_SOC_DAPM_MIXER("ROUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 1, 0,
335                         &ak4671_rout3_mixer_controls[0],
336                         ARRAY_SIZE(ak4671_rout3_mixer_controls)),
337 
338         /* Input MUXs */
339         SND_SOC_DAPM_MUX("LIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 2, 0,
340                         &ak4671_lin_mux_control),
341         SND_SOC_DAPM_MUX("RIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 3, 0,
342                         &ak4671_rin_mux_control),
343 
344         /* Mic Power */
345         SND_SOC_DAPM_MICBIAS("Mic Bias", AK4671_AD_DA_POWER_MANAGEMENT, 1, 0),
346 
347         /* Supply */
348         SND_SOC_DAPM_SUPPLY("PMPLL", AK4671_PLL_MODE_SELECT1, 0, 0, NULL, 0),
349 };
350 
351 static const struct snd_soc_dapm_route ak4671_intercon[] = {
352         {"DAC Left", "NULL", "PMPLL"},
353         {"DAC Right", "NULL", "PMPLL"},
354         {"ADC Left", "NULL", "PMPLL"},
355         {"ADC Right", "NULL", "PMPLL"},
356 
357         /* Outputs */
358         {"LOUT1", "NULL", "LOUT1 Mixer"},
359         {"ROUT1", "NULL", "ROUT1 Mixer"},
360         {"LOUT2", "NULL", "LOUT2 Mix Amp"},
361         {"ROUT2", "NULL", "ROUT2 Mix Amp"},
362         {"LOUT3", "NULL", "LOUT3 Mixer"},
363         {"ROUT3", "NULL", "ROUT3 Mixer"},
364 
365         {"LOUT1 Mixer", "DACL", "DAC Left"},
366         {"ROUT1 Mixer", "DACR", "DAC Right"},
367         {"LOUT2 Mixer", "DACHL", "DAC Left"},
368         {"ROUT2 Mixer", "DACHR", "DAC Right"},
369         {"LOUT2 Mix Amp", "NULL", "LOUT2 Mixer"},
370         {"ROUT2 Mix Amp", "NULL", "ROUT2 Mixer"},
371         {"LOUT3 Mixer", "DACSL", "DAC Left"},
372         {"ROUT3 Mixer", "DACSR", "DAC Right"},
373 
374         /* Inputs */
375         {"LIN MUX", "LIN1", "LIN1"},
376         {"LIN MUX", "LIN2", "LIN2"},
377         {"LIN MUX", "LIN3", "LIN3"},
378         {"LIN MUX", "LIN4", "LIN4"},
379 
380         {"RIN MUX", "RIN1", "RIN1"},
381         {"RIN MUX", "RIN2", "RIN2"},
382         {"RIN MUX", "RIN3", "RIN3"},
383         {"RIN MUX", "RIN4", "RIN4"},
384 
385         {"LIN1", NULL, "Mic Bias"},
386         {"RIN1", NULL, "Mic Bias"},
387         {"LIN2", NULL, "Mic Bias"},
388         {"RIN2", NULL, "Mic Bias"},
389 
390         {"ADC Left", "NULL", "LIN MUX"},
391         {"ADC Right", "NULL", "RIN MUX"},
392 
393         /* Analog Loops */
394         {"LIN1 Mixing Circuit", "NULL", "LIN1"},
395         {"RIN1 Mixing Circuit", "NULL", "RIN1"},
396         {"LIN2 Mixing Circuit", "NULL", "LIN2"},
397         {"RIN2 Mixing Circuit", "NULL", "RIN2"},
398         {"LIN3 Mixing Circuit", "NULL", "LIN3"},
399         {"RIN3 Mixing Circuit", "NULL", "RIN3"},
400         {"LIN4 Mixing Circuit", "NULL", "LIN4"},
401         {"RIN4 Mixing Circuit", "NULL", "RIN4"},
402 
403         {"LOUT1 Mixer", "LINL1", "LIN1 Mixing Circuit"},
404         {"ROUT1 Mixer", "RINR1", "RIN1 Mixing Circuit"},
405         {"LOUT2 Mixer", "LINH1", "LIN1 Mixing Circuit"},
406         {"ROUT2 Mixer", "RINH1", "RIN1 Mixing Circuit"},
407         {"LOUT3 Mixer", "LINS1", "LIN1 Mixing Circuit"},
408         {"ROUT3 Mixer", "RINS1", "RIN1 Mixing Circuit"},
409 
410         {"LOUT1 Mixer", "LINL2", "LIN2 Mixing Circuit"},
411         {"ROUT1 Mixer", "RINR2", "RIN2 Mixing Circuit"},
412         {"LOUT2 Mixer", "LINH2", "LIN2 Mixing Circuit"},
413         {"ROUT2 Mixer", "RINH2", "RIN2 Mixing Circuit"},
414         {"LOUT3 Mixer", "LINS2", "LIN2 Mixing Circuit"},
415         {"ROUT3 Mixer", "RINS2", "RIN2 Mixing Circuit"},
416 
417         {"LOUT1 Mixer", "LINL3", "LIN3 Mixing Circuit"},
418         {"ROUT1 Mixer", "RINR3", "RIN3 Mixing Circuit"},
419         {"LOUT2 Mixer", "LINH3", "LIN3 Mixing Circuit"},
420         {"ROUT2 Mixer", "RINH3", "RIN3 Mixing Circuit"},
421         {"LOUT3 Mixer", "LINS3", "LIN3 Mixing Circuit"},
422         {"ROUT3 Mixer", "RINS3", "RIN3 Mixing Circuit"},
423 
424         {"LOUT1 Mixer", "LINL4", "LIN4 Mixing Circuit"},
425         {"ROUT1 Mixer", "RINR4", "RIN4 Mixing Circuit"},
426         {"LOUT2 Mixer", "LINH4", "LIN4 Mixing Circuit"},
427         {"ROUT2 Mixer", "RINH4", "RIN4 Mixing Circuit"},
428         {"LOUT3 Mixer", "LINS4", "LIN4 Mixing Circuit"},
429         {"ROUT3 Mixer", "RINS4", "RIN4 Mixing Circuit"},
430 };
431 
432 static int ak4671_hw_params(struct snd_pcm_substream *substream,
433                 struct snd_pcm_hw_params *params,
434                 struct snd_soc_dai *dai)
435 {
436         struct snd_soc_codec *codec = dai->codec;
437         u8 fs;
438 
439         fs = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
440         fs &= ~AK4671_FS;
441 
442         switch (params_rate(params)) {
443         case 8000:
444                 fs |= AK4671_FS_8KHZ;
445                 break;
446         case 12000:
447                 fs |= AK4671_FS_12KHZ;
448                 break;
449         case 16000:
450                 fs |= AK4671_FS_16KHZ;
451                 break;
452         case 24000:
453                 fs |= AK4671_FS_24KHZ;
454                 break;
455         case 11025:
456                 fs |= AK4671_FS_11_025KHZ;
457                 break;
458         case 22050:
459                 fs |= AK4671_FS_22_05KHZ;
460                 break;
461         case 32000:
462                 fs |= AK4671_FS_32KHZ;
463                 break;
464         case 44100:
465                 fs |= AK4671_FS_44_1KHZ;
466                 break;
467         case 48000:
468                 fs |= AK4671_FS_48KHZ;
469                 break;
470         default:
471                 return -EINVAL;
472         }
473 
474         snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, fs);
475 
476         return 0;
477 }
478 
479 static int ak4671_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
480                 unsigned int freq, int dir)
481 {
482         struct snd_soc_codec *codec = dai->codec;
483         u8 pll;
484 
485         pll = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
486         pll &= ~AK4671_PLL;
487 
488         switch (freq) {
489         case 11289600:
490                 pll |= AK4671_PLL_11_2896MHZ;
491                 break;
492         case 12000000:
493                 pll |= AK4671_PLL_12MHZ;
494                 break;
495         case 12288000:
496                 pll |= AK4671_PLL_12_288MHZ;
497                 break;
498         case 13000000:
499                 pll |= AK4671_PLL_13MHZ;
500                 break;
501         case 13500000:
502                 pll |= AK4671_PLL_13_5MHZ;
503                 break;
504         case 19200000:
505                 pll |= AK4671_PLL_19_2MHZ;
506                 break;
507         case 24000000:
508                 pll |= AK4671_PLL_24MHZ;
509                 break;
510         case 26000000:
511                 pll |= AK4671_PLL_26MHZ;
512                 break;
513         case 27000000:
514                 pll |= AK4671_PLL_27MHZ;
515                 break;
516         default:
517                 return -EINVAL;
518         }
519 
520         snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, pll);
521 
522         return 0;
523 }
524 
525 static int ak4671_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
526 {
527         struct snd_soc_codec *codec = dai->codec;
528         u8 mode;
529         u8 format;
530 
531         /* set master/slave audio interface */
532         mode = snd_soc_read(codec, AK4671_PLL_MODE_SELECT1);
533 
534         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
535         case SND_SOC_DAIFMT_CBM_CFM:
536                 mode |= AK4671_M_S;
537                 break;
538         case SND_SOC_DAIFMT_CBM_CFS:
539                 mode &= ~(AK4671_M_S);
540                 break;
541         default:
542                 return -EINVAL;
543         }
544 
545         /* interface format */
546         format = snd_soc_read(codec, AK4671_FORMAT_SELECT);
547         format &= ~AK4671_DIF;
548 
549         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
550         case SND_SOC_DAIFMT_I2S:
551                 format |= AK4671_DIF_I2S_MODE;
552                 break;
553         case SND_SOC_DAIFMT_LEFT_J:
554                 format |= AK4671_DIF_MSB_MODE;
555                 break;
556         case SND_SOC_DAIFMT_DSP_A:
557                 format |= AK4671_DIF_DSP_MODE;
558                 format |= AK4671_BCKP;
559                 format |= AK4671_MSBS;
560                 break;
561         default:
562                 return -EINVAL;
563         }
564 
565         /* set mode and format */
566         snd_soc_write(codec, AK4671_PLL_MODE_SELECT1, mode);
567         snd_soc_write(codec, AK4671_FORMAT_SELECT, format);
568 
569         return 0;
570 }
571 
572 static int ak4671_set_bias_level(struct snd_soc_codec *codec,
573                 enum snd_soc_bias_level level)
574 {
575         switch (level) {
576         case SND_SOC_BIAS_ON:
577         case SND_SOC_BIAS_PREPARE:
578         case SND_SOC_BIAS_STANDBY:
579                 snd_soc_update_bits(codec, AK4671_AD_DA_POWER_MANAGEMENT,
580                                     AK4671_PMVCM, AK4671_PMVCM);
581                 break;
582         case SND_SOC_BIAS_OFF:
583                 snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT, 0x00);
584                 break;
585         }
586         codec->dapm.bias_level = level;
587         return 0;
588 }
589 
590 #define AK4671_RATES            (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
591                                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
592                                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
593                                 SNDRV_PCM_RATE_48000)
594 
595 #define AK4671_FORMATS          SNDRV_PCM_FMTBIT_S16_LE
596 
597 static const struct snd_soc_dai_ops ak4671_dai_ops = {
598         .hw_params      = ak4671_hw_params,
599         .set_sysclk     = ak4671_set_dai_sysclk,
600         .set_fmt        = ak4671_set_dai_fmt,
601 };
602 
603 static struct snd_soc_dai_driver ak4671_dai = {
604         .name = "ak4671-hifi",
605         .playback = {
606                 .stream_name = "Playback",
607                 .channels_min = 1,
608                 .channels_max = 2,
609                 .rates = AK4671_RATES,
610                 .formats = AK4671_FORMATS,},
611         .capture = {
612                 .stream_name = "Capture",
613                 .channels_min = 1,
614                 .channels_max = 2,
615                 .rates = AK4671_RATES,
616                 .formats = AK4671_FORMATS,},
617         .ops = &ak4671_dai_ops,
618 };
619 
620 static int ak4671_probe(struct snd_soc_codec *codec)
621 {
622         struct ak4671_priv *ak4671 = snd_soc_codec_get_drvdata(codec);
623         int ret;
624 
625         ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4671->control_type);
626         if (ret < 0) {
627                 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
628                 return ret;
629         }
630 
631         snd_soc_add_codec_controls(codec, ak4671_snd_controls,
632                              ARRAY_SIZE(ak4671_snd_controls));
633 
634         ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
635 
636         return ret;
637 }
638 
639 static int ak4671_remove(struct snd_soc_codec *codec)
640 {
641         ak4671_set_bias_level(codec, SND_SOC_BIAS_OFF);
642         return 0;
643 }
644 
645 static struct snd_soc_codec_driver soc_codec_dev_ak4671 = {
646         .probe = ak4671_probe,
647         .remove = ak4671_remove,
648         .set_bias_level = ak4671_set_bias_level,
649         .reg_cache_size = AK4671_CACHEREGNUM,
650         .reg_word_size = sizeof(u8),
651         .reg_cache_default = ak4671_reg,
652         .dapm_widgets = ak4671_dapm_widgets,
653         .num_dapm_widgets = ARRAY_SIZE(ak4671_dapm_widgets),
654         .dapm_routes = ak4671_intercon,
655         .num_dapm_routes = ARRAY_SIZE(ak4671_intercon),
656 };
657 
658 static int ak4671_i2c_probe(struct i2c_client *client,
659                             const struct i2c_device_id *id)
660 {
661         struct ak4671_priv *ak4671;
662         int ret;
663 
664         ak4671 = devm_kzalloc(&client->dev, sizeof(struct ak4671_priv),
665                               GFP_KERNEL);
666         if (ak4671 == NULL)
667                 return -ENOMEM;
668 
669         i2c_set_clientdata(client, ak4671);
670         ak4671->control_type = SND_SOC_I2C;
671 
672         ret = snd_soc_register_codec(&client->dev,
673                         &soc_codec_dev_ak4671, &ak4671_dai, 1);
674         return ret;
675 }
676 
677 static int ak4671_i2c_remove(struct i2c_client *client)
678 {
679         snd_soc_unregister_codec(&client->dev);
680         return 0;
681 }
682 
683 static const struct i2c_device_id ak4671_i2c_id[] = {
684         { "ak4671", 0 },
685         { }
686 };
687 MODULE_DEVICE_TABLE(i2c, ak4671_i2c_id);
688 
689 static struct i2c_driver ak4671_i2c_driver = {
690         .driver = {
691                 .name = "ak4671-codec",
692                 .owner = THIS_MODULE,
693         },
694         .probe = ak4671_i2c_probe,
695         .remove = ak4671_i2c_remove,
696         .id_table = ak4671_i2c_id,
697 };
698 
699 module_i2c_driver(ak4671_i2c_driver);
700 
701 MODULE_DESCRIPTION("ASoC AK4671 codec driver");
702 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
703 MODULE_LICENSE("GPL");
704 

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