aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/ak4671.c
blob: de9ff66d3721d5dd367b2fc3f60178d9d5ee9e7c (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
/*
 * ak4671.c  --  audio driver for AK4671
 *
 * Copyright (C) 2009 Samsung Electronics Co.Ltd
 * Author: Joonyoung Shim <jy0922.shim@samsung.com>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>

#include "ak4671.h"


/* codec private data */
struct ak4671_priv {
	enum snd_soc_control_type control_type;
};

/* ak4671 register cache & default register settings */
static const u8 ak4671_reg[AK4671_CACHEREGNUM] = {
	0x00,	/* AK4671_AD_DA_POWER_MANAGEMENT	(0x00)	*/
	0xf6,	/* AK4671_PLL_MODE_SELECT0		(0x01)	*/
	0x00,	/* AK4671_PLL_MODE_SELECT1		(0x02)	*/
	0x02,	/* AK4671_FORMAT_SELECT			(0x03)	*/
	0x00,	/* AK4671_MIC_SIGNAL_SELECT		(0x04)	*/
	0x55,	/* AK4671_MIC_AMP_GAIN			(0x05)	*/
	0x00,	/* AK4671_MIXING_POWER_MANAGEMENT0	(0x06)	*/
	0x00,	/* AK4671_MIXING_POWER_MANAGEMENT1	(0x07)	*/
	0xb5,	/* AK4671_OUTPUT_VOLUME_CONTROL		(0x08)	*/
	0x00,	/* AK4671_LOUT1_SIGNAL_SELECT		(0x09)	*/
	0x00,	/* AK4671_ROUT1_SIGNAL_SELECT		(0x0a)	*/
	0x00,	/* AK4671_LOUT2_SIGNAL_SELECT		(0x0b)	*/
	0x00,	/* AK4671_ROUT2_SIGNAL_SELECT		(0x0c)	*/
	0x00,	/* AK4671_LOUT3_SIGNAL_SELECT		(0x0d)	*/
	0x00,	/* AK4671_ROUT3_SIGNAL_SELECT		(0x0e)	*/
	0x00,	/* AK4671_LOUT1_POWER_MANAGERMENT	(0x0f)	*/
	0x00,	/* AK4671_LOUT2_POWER_MANAGERMENT	(0x10)	*/
	0x80,	/* AK4671_LOUT3_POWER_MANAGERMENT	(0x11)	*/
	0x91,	/* AK4671_LCH_INPUT_VOLUME_CONTROL	(0x12)	*/
	0x91,	/* AK4671_RCH_INPUT_VOLUME_CONTROL	(0x13)	*/
	0xe1,	/* AK4671_ALC_REFERENCE_SELECT		(0x14)	*/
	0x00,	/* AK4671_DIGITAL_MIXING_CONTROL	(0x15)	*/
	0x00,	/* AK4671_ALC_TIMER_SELECT		(0x16)	*/
	0x00,	/* AK4671_ALC_MODE_CONTROL		(0x17)	*/
	0x02,	/* AK4671_MODE_CONTROL1			(0x18)	*/
	0x01,	/* AK4671_MODE_CONTROL2			(0x19)	*/
	0x18,	/* AK4671_LCH_OUTPUT_VOLUME_CONTROL	(0x1a)	*/
	0x18,	/* AK4671_RCH_OUTPUT_VOLUME_CONTROL	(0x1b)	*/
	0x00,	/* AK4671_SIDETONE_A_CONTROL		(0x1c)	*/
	0x02,	/* AK4671_DIGITAL_FILTER_SELECT		(0x1d)	*/
	0x00,	/* AK4671_FIL3_COEFFICIENT0		(0x1e)	*/
	0x00,	/* AK4671_FIL3_COEFFICIENT1		(0x1f)	*/
	0x00,	/* AK4671_FIL3_COEFFICIENT2		(0x20)	*/
	0x00,	/* AK4671_FIL3_COEFFICIENT3		(0x21)	*/
	0x00,	/* AK4671_EQ_COEFFICIENT0		(0x22)	*/
	0x00,	/* AK4671_EQ_COEFFICIENT1		(0x23)	*/
	0x00,	/* AK4671_EQ_COEFFICIENT2		(0x24)	*/
	0x00,	/* AK4671_EQ_COEFFICIENT3		(0x25)	*/
	0x00,	/* AK4671_EQ_COEFFICIENT4		(0x26)	*/
	0x00,	/* AK4671_EQ_COEFFICIENT5		(0x27)	*/
	0xa9,	/* AK4671_FIL1_COEFFICIENT0		(0x28)	*/
	0x1f,	/* AK4671_FIL1_COEFFICIENT1		(0x29)	*/
	0xad,	/* AK4671_FIL1_COEFFICIENT2		(0x2a)	*/
	0x20,	/* AK4671_FIL1_COEFFICIENT3		(0x2b)	*/
	0x00,	/* AK4671_FIL2_COEFFICIENT0		(0x2c)	*/
	0x00,	/* AK4671_FIL2_COEFFICIENT1		(0x2d)	*/
	0x00,	/* AK4671_FIL2_COEFFICIENT2		(0x2e)	*/
	0x00,	/* AK4671_FIL2_COEFFICIENT3		(0x2f)	*/
	0x00,	/* AK4671_DIGITAL_FILTER_SELECT2	(0x30)	*/
	0x00,	/* this register not used			*/
	0x00,	/* AK4671_E1_COEFFICIENT0		(0x32)	*/
	0x00,	/* AK4671_E1_COEFFICIENT1		(0x33)	*/
	0x00,	/* AK4671_E1_COEFFICIENT2		(0x34)	*/
	0x00,	/* AK4671_E1_COEFFICIENT3		(0x35)	*/
	0x00,	/* AK4671_E1_COEFFICIENT4		(0x36)	*/
	0x00,	/* AK4671_E1_COEFFICIENT5		(0x37)	*/
	0x00,	/* AK4671_E2_COEFFICIENT0		(0x38)	*/
	0x00,	/* AK4671_E2_COEFFICIENT1		(0x39)	*/
	0x00,	/* AK4671_E2_COEFFICIENT2		(0x3a)	*/
	0x00,	/* AK4671_E2_COEFFICIENT3		(0x3b)	*/
	0x00,	/* AK4671_E2_COEFFICIENT4		(0x3c)	*/
	0x00,	/* AK4671_E2_COEFFICIENT5		(0x3d)	*/
	0x00,	/* AK4671_E3_COEFFICIENT0		(0x3e)	*/
	0x00,	/* AK4671_E3_COEFFICIENT1		(0x3f)	*/
	0x00,	/* AK4671_E3_COEFFICIENT2		(0x40)	*/
	0x00,	/* AK4671_E3_COEFFICIENT3		(0x41)	*/
	0x00,	/* AK4671_E3_COEFFICIENT4		(0x42)	*/
	0x00,	/* AK4671_E3_COEFFICIENT5		(0x43)	*/
	0x00,	/* AK4671_E4_COEFFICIENT0		(0x44)	*/
	0x00,	/* AK4671_E4_COEFFICIENT1		(0x45)	*/
	0x00,	/* AK4671_E4_COEFFICIENT2		(0x46)	*/
	0x00,	/* AK4671_E4_COEFFICIENT3		(0x47)	*/
	0x00,	/* AK4671_E4_COEFFICIENT4		(0x48)	*/
	0x00,	/* AK4671_E4_COEFFICIENT5		(0x49)	*/
	0x00,	/* AK4671_E5_COEFFICIENT0		(0x4a)	*/
	0x00,	/* AK4671_E5_COEFFICIENT1		(0x4b)	*/
	0x00,	/* AK4671_E5_COEFFICIENT2		(0x4c)	*/
	0x00,	/* AK4671_E5_COEFFICIENT3		(0x4d)	*/
	0x00,	/* AK4671_E5_COEFFICIENT4		(0x4e)	*/
	0x00,	/* AK4671_E5_COEFFICIENT5		(0x4f)	*/
	0x88,	/* AK4671_EQ_CONTROL_250HZ_100HZ	(0x50)	*/
	0x88,	/* AK4671_EQ_CONTROL_3500HZ_1KHZ	(0x51)	*/
	0x08,	/* AK4671_EQ_CONTRO_10KHZ		(0x52)	*/
	0x00,	/* AK4671_PCM_IF_CONTROL0		(0x53)	*/
	0x00,	/* AK4671_PCM_IF_CONTROL1		(0x54)	*/
	0x00,	/* AK4671_PCM_IF_CONTROL2		(0x55)	*/
	0x18,	/* AK4671_DIGITAL_VOLUME_B_CONTROL	(0x56)	*/
	0x18,	/* AK4671_DIGITAL_VOLUME_C_CONTROL	(0x57)	*/
	0x00,	/* AK4671_SIDETONE_VOLUME_CONTROL	(0x58)	*/
	0x00,	/* AK4671_DIGITAL_MIXING_CONTROL2	(0x59)	*/
	0x00,	/* AK4671_SAR_ADC_CONTROL		(0x5a)	*/
};

/*
 * LOUT1/ROUT1 output volume control:
 * from -24 to 6 dB in 6 dB steps (mute instead of -30 dB)
 */
static DECLARE_TLV_DB_SCALE(out1_tlv, -3000, 600, 1);

/*
 * LOUT2/ROUT2 output volume control:
 * from -33 to 6 dB in 3 dB steps (mute instead of -33 dB)
 */
static DECLARE_TLV_DB_SCALE(out2_tlv, -3300, 300, 1);

/*
 * LOUT3/ROUT3 output volume control:
 * from -6 to 3 dB in 3 dB steps
 */
static DECLARE_TLV_DB_SCALE(out3_tlv, -600, 300, 0);

/*
 * Mic amp gain control:
 * from -15 to 30 dB in 3 dB steps
 * REVISIT: The actual min value(0x01) is -12 dB and the reg value 0x00 is not
 * available
 */
static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -1500, 300, 0);

static const struct snd_kcontrol_new ak4671_snd_controls[] = {
	/* Common playback gain controls */
	SOC_SINGLE_TLV("Line Output1 Playback Volume",
			AK4671_OUTPUT_VOLUME_CONTROL, 0, 0x6, 0, out1_tlv),
	SOC_SINGLE_TLV("Headphone Output2 Playback Volume",
			AK4671_OUTPUT_VOLUME_CONTROL, 4, 0xd, 0, out2_tlv),
	SOC_SINGLE_TLV("Line Output3 Playback Volume",
			AK4671_LOUT3_POWER_MANAGERMENT, 6, 0x3, 0, out3_tlv),

	/* Common capture gain controls */
	SOC_DOUBLE_TLV("Mic Amp Capture Volume",
			AK4671_MIC_AMP_GAIN, 0, 4, 0xf, 0, mic_amp_tlv),
};

/* event handlers */
static int ak4671_out2_event(struct snd_soc_dapm_widget *w,
		struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = w->codec;

	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
		snd_soc_update_bits(codec, AK4671_LOUT2_POWER_MANAGERMENT,
				    AK4671_MUTEN, AK4671_MUTEN);
		break;
	case SND_SOC_DAPM_PRE_PMD:
		snd_soc_update_bits(codec, AK4671_LOUT2_POWER_MANAGERMENT,
				    AK4671_MUTEN, 0);
		break;
	}

	return 0;
}

/* Output Mixers */
static const struct snd_kcontrol_new ak4671_lout1_mixer_controls[] = {
	SOC_DAPM_SINGLE("DACL", AK4671_LOUT1_SIGNAL_SELECT, 0, 1, 0),
	SOC_DAPM_SINGLE("LINL1", AK4671_LOUT1_SIGNAL_SELECT, 1, 1, 0),
	SOC_DAPM_SINGLE("LINL2", AK4671_LOUT1_SIGNAL_SELECT, 2, 1, 0),
	SOC_DAPM_SINGLE("LINL3", AK4671_LOUT1_SIGNAL_SELECT, 3, 1, 0),
	SOC_DAPM_SINGLE("LINL4", AK4671_LOUT1_SIGNAL_SELECT, 4, 1, 0),
	SOC_DAPM_SINGLE("LOOPL", AK4671_LOUT1_SIGNAL_SELECT, 5, 1, 0),
};

static const struct snd_kcontrol_new ak4671_rout1_mixer_controls[] = {
	SOC_DAPM_SINGLE("DACR", AK4671_ROUT1_SIGNAL_SELECT, 0, 1, 0),
	SOC_DAPM_SINGLE("RINR1", AK4671_ROUT1_SIGNAL_SELECT, 1, 1, 0),
	SOC_DAPM_SINGLE("RINR2", AK4671_ROUT1_SIGNAL_SELECT, 2, 1, 0),
	SOC_DAPM_SINGLE("RINR3", AK4671_ROUT1_SIGNAL_SELECT, 3, 1, 0),
	SOC_DAPM_SINGLE("RINR4", AK4671_ROUT1_SIGNAL_SELECT, 4, 1, 0),
	SOC_DAPM_SINGLE("LOOPR", AK4671_ROUT1_SIGNAL_SELECT, 5, 1, 0),
};

static const struct snd_kcontrol_new ak4671_lout2_mixer_controls[] = {
	SOC_DAPM_SINGLE("DACHL", AK4671_LOUT2_SIGNAL_SELECT, 0, 1, 0),
	SOC_DAPM_SINGLE("LINH1", AK4671_LOUT2_SIGNAL_SELECT, 1, 1, 0),
	SOC_DAPM_SINGLE("LINH2", AK4671_LOUT2_SIGNAL_SELECT, 2, 1, 0),
	SOC_DAPM_SINGLE("LINH3", AK4671_LOUT2_SIGNAL_SELECT, 3, 1, 0),
	SOC_DAPM_SINGLE("LINH4", AK4671_LOUT2_SIGNAL_SELECT, 4, 1, 0),
	SOC_DAPM_SINGLE("LOOPHL", AK4671_LOUT2_SIGNAL_SELECT, 5, 1, 0),
};

static const struct snd_kcontrol_new ak4671_rout2_mixer_controls[] = {
	SOC_DAPM_SINGLE("DACHR", AK4671_ROUT2_SIGNAL_SELECT, 0, 1, 0),
	SOC_DAPM_SINGLE("RINH1", AK4671_ROUT2_SIGNAL_SELECT, 1, 1, 0),
	SOC_DAPM_SINGLE("RINH2", AK4671_ROUT2_SIGNAL_SELECT, 2, 1, 0),
	SOC_DAPM_SINGLE("RINH3", AK4671_ROUT2_SIGNAL_SELECT, 3, 1, 0),
	SOC_DAPM_SINGLE("RINH4", AK4671_ROUT2_SIGNAL_SELECT, 4, 1, 0),
	SOC_DAPM_SINGLE("LOOPHR", AK4671_ROUT2_SIGNAL_SELECT, 5, 1, 0),
};

static const struct snd_kcontrol_new ak4671_lout3_mixer_controls[] = {
	SOC_DAPM_SINGLE("DACSL", AK4671_LOUT3_SIGNAL_SELECT, 0, 1, 0),
	SOC_DAPM_SINGLE("LINS1", AK4671_LOUT3_SIGNAL_SELECT, 1, 1, 0),
	SOC_DAPM_SINGLE("LINS2", AK4671_LOUT3_SIGNAL_SELECT, 2, 1, 0),
	SOC_DAPM_SINGLE("LINS3", AK4671_LOUT3_SIGNAL_SELECT, 3, 1, 0),
	SOC_DAPM_SINGLE("LINS4", AK4671_LOUT3_SIGNAL_SELECT, 4, 1, 0),
	SOC_DAPM_SINGLE("LOOPSL", AK4671_LOUT3_SIGNAL_SELECT, 5, 1, 0),
};

static const struct snd_kcontrol_new ak4671_rout3_mixer_controls[] = {
	SOC_DAPM_SINGLE("DACSR", AK4671_ROUT3_SIGNAL_SELECT, 0, 1, 0),
	SOC_DAPM_SINGLE("RINS1", AK4671_ROUT3_SIGNAL_SELECT, 1, 1, 0),
	SOC_DAPM_SINGLE("RINS2", AK4671_ROUT3_SIGNAL_SELECT, 2, 1, 0),
	SOC_DAPM_SINGLE("RINS3", AK4671_ROUT3_SIGNAL_SELECT, 3, 1, 0),
	SOC_DAPM_SINGLE("RINS4", AK4671_ROUT3_SIGNAL_SELECT, 4, 1, 0),
	SOC_DAPM_SINGLE("LOOPSR", AK4671_ROUT3_SIGNAL_SELECT, 5, 1, 0),
};

/* Input MUXs */
static const char *ak4671_lin_mux_texts[] =
		{"LIN1", "LIN2", "LIN3", "LIN4"};
static const struct soc_enum ak4671_lin_mux_enum =
	SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 0,
			ARRAY_SIZE(ak4671_lin_mux_texts),
			ak4671_lin_mux_texts);
static const struct snd_kcontrol_new ak4671_lin_mux_control =
	SOC_DAPM_ENUM("Route", ak4671_lin_mux_enum);

static const char *ak4671_rin_mux_texts[] =
		{"RIN1", "RIN2", "RIN3", "RIN4"};
static const struct soc_enum ak4671_rin_mux_enum =
	SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 2,
			ARRAY_SIZE(ak4671_rin_mux_texts),
			ak4671_rin_mux_texts);
static const struct snd_kcontrol_new ak4671_rin_mux_control =
	SOC_DAPM_ENUM("Route", ak4671_rin_mux_enum);

static const struct snd_soc_dapm_widget ak4671_dapm_widgets[] = {
	/* Inputs */
	SND_SOC_DAPM_INPUT("LIN1"),
	SND_SOC_DAPM_INPUT("RIN1"),
	SND_SOC_DAPM_INPUT("LIN2"),
	SND_SOC_DAPM_INPUT("RIN2"),
	SND_SOC_DAPM_INPUT("LIN3"),
	SND_SOC_DAPM_INPUT("RIN3"),
	SND_SOC_DAPM_INPUT("LIN4"),
	SND_SOC_DAPM_INPUT("RIN4"),

	/* Outputs */
	SND_SOC_DAPM_OUTPUT("LOUT1"),
	SND_SOC_DAPM_OUTPUT("ROUT1"),
	SND_SOC_DAPM_OUTPUT("LOUT2"),
	SND_SOC_DAPM_OUTPUT("ROUT2"),
	SND_SOC_DAPM_OUTPUT("LOUT3"),
	SND_SOC_DAPM_OUTPUT("ROUT3"),

	/* DAC */
	SND_SOC_DAPM_DAC("DAC Left", "Left HiFi Playback",
			AK4671_AD_DA_POWER_MANAGEMENT, 6, 0),
	SND_SOC_DAPM_DAC("DAC Right", "Right HiFi Playback",
			AK4671_AD_DA_POWER_MANAGEMENT, 7, 0),

	/* ADC */
	SND_SOC_DAPM_ADC("ADC Left", "Left HiFi Capture",
			AK4671_AD_DA_POWER_MANAGEMENT, 4, 0),
	SND_SOC_DAPM_ADC("ADC Right", "Right HiFi Capture",
			AK4671_AD_DA_POWER_MANAGEMENT, 5, 0),

	/* PGA */
	SND_SOC_DAPM_PGA("LOUT2 Mix Amp",
			AK4671_LOUT2_POWER_MANAGERMENT, 5, 0, NULL, 0),
	SND_SOC_DAPM_PGA("ROUT2 Mix Amp",
			AK4671_LOUT2_POWER_MANAGERMENT, 6, 0, NULL, 0),

	SND_SOC_DAPM_PGA("LIN1 Mixing Circuit",
			AK4671_MIXING_POWER_MANAGEMENT1, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("RIN1 Mixing Circuit",
			AK4671_MIXING_POWER_MANAGEMENT1, 1, 0, NULL, 0),
	SND_SOC_DAPM_PGA("LIN2 Mixing Circuit",
			AK4671_MIXING_POWER_MANAGEMENT1, 2, 0, NULL, 0),
	SND_SOC_DAPM_PGA("RIN2 Mixing Circuit",
			AK4671_MIXING_POWER_MANAGEMENT1, 3, 0, NULL, 0),
	SND_SOC_DAPM_PGA("LIN3 Mixing Circuit",
			AK4671_MIXING_POWER_MANAGEMENT1, 4, 0, NULL, 0),
	SND_SOC_DAPM_PGA("RIN3 Mixing Circuit",
			AK4671_MIXING_POWER_MANAGEMENT1, 5, 0, NULL, 0),
	SND_SOC_DAPM_PGA("LIN4 Mixing Circuit",
			AK4671_MIXING_POWER_MANAGEMENT1, 6, 0, NULL, 0),
	SND_SOC_DAPM_PGA("RIN4 Mixing Circuit",
			AK4671_MIXING_POWER_MANAGEMENT1, 7, 0, NULL, 0),

	/* Output Mixers */
	SND_SOC_DAPM_MIXER("LOUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 0, 0,
			&ak4671_lout1_mixer_controls[0],
			ARRAY_SIZE(ak4671_lout1_mixer_controls)),
	SND_SOC_DAPM_MIXER("ROUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 1, 0,
			&ak4671_rout1_mixer_controls[0],
			ARRAY_SIZE(ak4671_rout1_mixer_controls)),
	SND_SOC_DAPM_MIXER_E("LOUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
			0, 0, &ak4671_lout2_mixer_controls[0],
			ARRAY_SIZE(ak4671_lout2_mixer_controls),
			ak4671_out2_event,
			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
	SND_SOC_DAPM_MIXER_E("ROUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
			1, 0, &ak4671_rout2_mixer_controls[0],
			ARRAY_SIZE(ak4671_rout2_mixer_controls),
			ak4671_out2_event,
			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
	SND_SOC_DAPM_MIXER("LOUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 0, 0,
			&ak4671_lout3_mixer_controls[0],
			ARRAY_SIZE(ak4671_lout3_mixer_controls)),
	SND_SOC_DAPM_MIXER("ROUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 1, 0,
			&ak4671_rout3_mixer_controls[0],
			ARRAY_SIZE(ak4671_rout3_mixer_controls)),

	/* Input MUXs */
	SND_SOC_DAPM_MUX("LIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 2, 0,
			&ak4671_lin_mux_control),
	SND_SOC_DAPM_MUX("RIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 3, 0,
			&ak4671_rin_mux_control),

	/* Mic Power */
	SND_SOC_DAPM_MICBIAS("Mic Bias", AK4671_AD_DA_POWER_MANAGEMENT, 1, 0),

	/* Supply */
	SND_SOC_DAPM_SUPPLY("PMPLL", AK4671_PLL_MODE_SELECT1, 0, 0, NULL, 0),
};

static const struct snd_soc_dapm_route ak4671_intercon[] = {
	{"DAC Left", "NULL", "PMPLL"},
	{"DAC Right", "NULL", "PMPLL"},
	{"ADC Left", "NULL", "PMPLL"},
	{"ADC Right", "NULL", "PMPLL"},

	/* Outputs */
	{"LOUT1", "NULL", "LOUT1 Mixer"},
	{"ROUT1", "NULL", "ROUT1 Mixer"},
	{"LOUT2", "NULL", "LOUT2 Mix Amp"},
	{"ROUT2", "NULL", "ROUT2 Mix Amp"},
	{"LOUT3", "NULL", "LOUT3 Mixer"},
	{"ROUT3", "NULL", "ROUT3 Mixer"},

	{"LOUT1 Mixer", "DACL", "DAC Left"},
	{"ROUT1 Mixer", "DACR", "DAC Right"},
	{"LOUT2 Mixer", "DACHL", "DAC Left"},
	{"ROUT2 Mixer", "DACHR", "DAC Right"},
	{"LOUT2 Mix Amp", "NULL", "LOUT2 Mixer"},
	{"ROUT2 Mix Amp", "NULL", "ROUT2 Mixer"},
	{"LOUT3 Mixer", "DACSL", "DAC Left"},
	{"ROUT3 Mixer", "DACSR", "DAC Right"},

	/* Inputs */
	{"LIN MUX", "LIN1", "LIN1"},
	{"LIN MUX", "LIN2", "LIN2"},
	{"LIN MUX", "LIN3", "LIN3"},
	{"LIN MUX", "LIN4", "LIN4"},

	{"RIN MUX", "RIN1", "RIN1"},
	{"RIN MUX", "RIN2", "RIN2"},
	{"RIN MUX", "RIN3", "RIN3"},
	{"RIN MUX", "RIN4", "RIN4"},

	{"LIN1", NULL, "Mic Bias"},
	{"RIN1", NULL, "Mic Bias"},
	{"LIN2", NULL, "Mic Bias"},
	{"RIN2", NULL, "Mic Bias"},

	{"ADC Left", "NULL", "LIN MUX"},
	{"ADC Right", "NULL", "RIN MUX"},

	/* Analog Loops */
	{"LIN1 Mixing Circuit", "NULL", "LIN1"},
	{"RIN1 Mixing Circuit", "NULL", "RIN1"},
	{"LIN2 Mixing Circuit", "NULL", "LIN2"},
	{"RIN2 Mixing Circuit", "NULL", "RIN2"},
	{"LIN3 Mixing Circuit", "NULL", "LIN3"},
	{"RIN3 Mixing Circuit", "NULL", "RIN3"},
	{"LIN4 Mixing Circuit", "NULL", "LIN4"},
	{"RIN4 Mixing Circuit", "NULL", "RIN4"},

	{"LOUT1 Mixer", "LINL1", "LIN1 Mixing Circuit"},
	{"ROUT1 Mixer", "RINR1", "RIN1 Mixing Circuit"},
	{"LOUT2 Mixer", "LINH1", "LIN1 Mixing Circuit"},
	{"ROUT2 Mixer", "RINH1", "RIN1 Mixing Circuit"},
	{"LOUT3 Mixer", "LINS1", "LIN1 Mixing Circuit"},
	{"ROUT3 Mixer", "RINS1", "RIN1 Mixing Circuit"},

	{"LOUT1 Mixer", "LINL2", "LIN2 Mixing Circuit"},
	{"ROUT1 Mixer", "RINR2", "RIN2 Mixing Circuit"},
	{"LOUT2 Mixer", "LINH2", "LIN2 Mixing Circuit"},
	{"ROUT2 Mixer", "RINH2", "RIN2 Mixing Circuit"},
	{"LOUT3 Mixer", "LINS2", "LIN2 Mixing Circuit"},
	{"ROUT3 Mixer", "RINS2", "RIN2 Mixing Circuit"},

	{"LOUT1 Mixer", "LINL3", "LIN3 Mixing Circuit"},
	{"ROUT1 Mixer", "RINR3", "RIN3 Mixing Circuit"},
	{"LOUT2 Mixer", "LINH3", "LIN3 Mixing Circuit"},
	{"ROUT2 Mixer", "RINH3", "RIN3 Mixing Circuit"},
	{"LOUT3 Mixer", "LINS3", "LIN3 Mixing Circuit"},
	{"ROUT3 Mixer", "RINS3", "RIN3 Mixing Circuit"},

	{"LOUT1 Mixer", "LINL4", "LIN4 Mixing Circuit"},
	{"ROUT1 Mixer", "RINR4", "RIN4 Mixing Circuit"},
	{"LOUT2 Mixer", "LINH4", "LIN4 Mixing Circuit"},
	{"ROUT2 Mixer", "RINH4", "RIN4 Mixing Circuit"},
	{"LOUT3 Mixer", "LINS4", "LIN4 Mixing Circuit"},
	{"ROUT3 Mixer", "RINS4", "RIN4 Mixing Circuit"},
};

static int ak4671_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params,
		struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	u8 fs;

	fs = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
	fs &= ~AK4671_FS;

	switch (params_rate(params)) {
	case 8000:
		fs |= AK4671_FS_8KHZ;
		break;
	case 12000:
		fs |= AK4671_FS_12KHZ;
		break;
	case 16000:
		fs |= AK4671_FS_16KHZ;
		break;
	case 24000:
		fs |= AK4671_FS_24KHZ;
		break;
	case 11025:
		fs |= AK4671_FS_11_025KHZ;
		break;
	case 22050:
		fs |= AK4671_FS_22_05KHZ;
		break;
	case 32000:
		fs |= AK4671_FS_32KHZ;
		break;
	case 44100:
		fs |= AK4671_FS_44_1KHZ;
		break;
	case 48000:
		fs |= AK4671_FS_48KHZ;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, fs);

	return 0;
}

static int ak4671_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
		unsigned int freq, int dir)
{
	struct snd_soc_codec *codec = dai->codec;
	u8 pll;

	pll = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
	pll &= ~AK4671_PLL;

	switch (freq) {
	case 11289600:
		pll |= AK4671_PLL_11_2896MHZ;
		break;
	case 12000000:
		pll |= AK4671_PLL_12MHZ;
		break;
	case 12288000:
		pll |= AK4671_PLL_12_288MHZ;
		break;
	case 13000000:
		pll |= AK4671_PLL_13MHZ;
		break;
	case 13500000:
		pll |= AK4671_PLL_13_5MHZ;
		break;
	case 19200000:
		pll |= AK4671_PLL_19_2MHZ;
		break;
	case 24000000:
		pll |= AK4671_PLL_24MHZ;
		break;
	case 26000000:
		pll |= AK4671_PLL_26MHZ;
		break;
	case 27000000:
		pll |= AK4671_PLL_27MHZ;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, pll);

	return 0;
}

static int ak4671_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
	struct snd_soc_codec *codec = dai->codec;
	u8 mode;
	u8 format;

	/* set master/slave audio interface */
	mode = snd_soc_read(codec, AK4671_PLL_MODE_SELECT1);

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		mode |= AK4671_M_S;
		break;
	case SND_SOC_DAIFMT_CBM_CFS:
		mode &= ~(AK4671_M_S);
		break;
	default:
		return -EINVAL;
	}

	/* interface format */
	format = snd_soc_read(codec, AK4671_FORMAT_SELECT);
	format &= ~AK4671_DIF;

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		format |= AK4671_DIF_I2S_MODE;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		format |= AK4671_DIF_MSB_MODE;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		format |= AK4671_DIF_DSP_MODE;
		format |= AK4671_BCKP;
		format |= AK4671_MSBS;
		break;
	default:
		return -EINVAL;
	}

	/* set mode and format */
	snd_soc_write(codec, AK4671_PLL_MODE_SELECT1, mode);
	snd_soc_write(codec, AK4671_FORMAT_SELECT, format);

	return 0;
}

static int ak4671_set_bias_level(struct snd_soc_codec *codec,
		enum snd_soc_bias_level level)
{
	switch (level) {
	case SND_SOC_BIAS_ON:
	case SND_SOC_BIAS_PREPARE:
	case SND_SOC_BIAS_STANDBY:
		snd_soc_update_bits(codec, AK4671_AD_DA_POWER_MANAGEMENT,
				    AK4671_PMVCM, AK4671_PMVCM);
		break;
	case SND_SOC_BIAS_OFF:
		snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT, 0x00);
		break;
	}
	codec->dapm.bias_level = level;
	return 0;
}

#define AK4671_RATES		(SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
				SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
				SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
				SNDRV_PCM_RATE_48000)

#define AK4671_FORMATS		SNDRV_PCM_FMTBIT_S16_LE

static struct snd_soc_dai_ops ak4671_dai_ops = {
	.hw_params	= ak4671_hw_params,
	.set_sysclk	= ak4671_set_dai_sysclk,
	.set_fmt	= ak4671_set_dai_fmt,
};

static struct snd_soc_dai_driver ak4671_dai = {
	.name = "ak4671-hifi",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = AK4671_RATES,
		.formats = AK4671_FORMATS,},
	.capture = {
		.stream_name = "Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = AK4671_RATES,
		.formats = AK4671_FORMATS,},
	.ops = &ak4671_dai_ops,
};

static int ak4671_probe(struct snd_soc_codec *codec)
{
	struct ak4671_priv *ak4671 = snd_soc_codec_get_drvdata(codec);
	int ret;

	ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4671->control_type);
	if (ret < 0) {
		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
		return ret;
	}

	snd_soc_add_controls(codec, ak4671_snd_controls,
			     ARRAY_SIZE(ak4671_snd_controls));

	ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

	return ret;
}

static int ak4671_remove(struct snd_soc_codec *codec)
{
	ak4671_set_bias_level(codec, SND_SOC_BIAS_OFF);
	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_ak4671 = {
	.probe = ak4671_probe,
	.remove = ak4671_remove,
	.set_bias_level = ak4671_set_bias_level,
	.reg_cache_size = AK4671_CACHEREGNUM,
	.reg_word_size = sizeof(u8),
	.reg_cache_default = ak4671_reg,
	.dapm_widgets = ak4671_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(ak4671_dapm_widgets),
	.dapm_routes = ak4671_intercon,
	.num_dapm_routes = ARRAY_SIZE(ak4671_intercon),
};

static int __devinit ak4671_i2c_probe(struct i2c_client *client,
		const struct i2c_device_id *id)
{
	struct ak4671_priv *ak4671;
	int ret;

	ak4671 = kzalloc(sizeof(struct ak4671_priv), GFP_KERNEL);
	if (ak4671 == NULL)
		return -ENOMEM;

	i2c_set_clientdata(client, ak4671);
	ak4671->control_type = SND_SOC_I2C;

	ret = snd_soc_register_codec(&client->dev,
			&soc_codec_dev_ak4671, &ak4671_dai, 1);
	if (ret < 0)
		kfree(ak4671);
	return ret;
}

static __devexit int ak4671_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);
	kfree(i2c_get_clientdata(client));
	return 0;
}

static const struct i2c_device_id ak4671_i2c_id[] = {
	{ "ak4671", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ak4671_i2c_id);

static struct i2c_driver ak4671_i2c_driver = {
	.driver = {
		.name = "ak4671-codec",
		.owner = THIS_MODULE,
	},
	.probe = ak4671_i2c_probe,
	.remove = __devexit_p(ak4671_i2c_remove),
	.id_table = ak4671_i2c_id,
};

static int __init ak4671_modinit(void)
{
	return i2c_add_driver(&ak4671_i2c_driver);
}
module_init(ak4671_modinit);

static void __exit ak4671_exit(void)
{
	i2c_del_driver(&ak4671_i2c_driver);
}
module_exit(ak4671_exit);

MODULE_DESCRIPTION("ASoC AK4671 codec driver");
MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
MODULE_LICENSE("GPL");