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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 <[email protected]>
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 __devinit 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 __devexit 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 = __devexit_p(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 <[email protected]>");
703 MODULE_LICENSE("GPL");
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