summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/es8328.c
blob: 37722194b107e8a733bb124be480ff46b63749ef (plain)
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
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
/*
 * es8328.c  --  ES8328 ALSA SoC Audio driver
 *
 * Copyright 2014 Sutajio Ko-Usagi PTE LTD
 *
 * Author: Sean Cross <xobs@kosagi.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/of_device.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/regulator/consumer.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "es8328.h"

static const unsigned int rates_12288[] = {
	8000, 12000, 16000, 24000, 32000, 48000, 96000,
};

static const int ratios_12288[] = {
	10, 7, 6, 4, 3, 2, 0,
};

static const struct snd_pcm_hw_constraint_list constraints_12288 = {
	.count	= ARRAY_SIZE(rates_12288),
	.list	= rates_12288,
};

static const unsigned int rates_11289[] = {
	8018, 11025, 22050, 44100, 88200,
};

static const int ratios_11289[] = {
	9, 7, 4, 2, 0,
};

static const struct snd_pcm_hw_constraint_list constraints_11289 = {
	.count	= ARRAY_SIZE(rates_11289),
	.list	= rates_11289,
};

/* regulator supplies for sgtl5000, VDDD is an optional external supply */
enum sgtl5000_regulator_supplies {
	DVDD,
	AVDD,
	PVDD,
	HPVDD,
	ES8328_SUPPLY_NUM
};

/* vddd is optional supply */
static const char * const supply_names[ES8328_SUPPLY_NUM] = {
	"DVDD",
	"AVDD",
	"PVDD",
	"HPVDD",
};

#define ES8328_RATES (SNDRV_PCM_RATE_96000 | \
		SNDRV_PCM_RATE_48000 | \
		SNDRV_PCM_RATE_44100 | \
		SNDRV_PCM_RATE_32000 | \
		SNDRV_PCM_RATE_22050 | \
		SNDRV_PCM_RATE_16000 | \
		SNDRV_PCM_RATE_11025 | \
		SNDRV_PCM_RATE_8000)
#define ES8328_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
		SNDRV_PCM_FMTBIT_S18_3LE | \
		SNDRV_PCM_FMTBIT_S20_3LE | \
		SNDRV_PCM_FMTBIT_S24_LE | \
		SNDRV_PCM_FMTBIT_S32_LE)

struct es8328_priv {
	struct regmap *regmap;
	struct clk *clk;
	int playback_fs;
	bool deemph;
	int mclkdiv2;
	const struct snd_pcm_hw_constraint_list *sysclk_constraints;
	const int *mclk_ratios;
	struct regulator_bulk_data supplies[ES8328_SUPPLY_NUM];
};

/*
 * ES8328 Controls
 */

static const char * const adcpol_txt[] = {"Normal", "L Invert", "R Invert",
					  "L + R Invert"};
static SOC_ENUM_SINGLE_DECL(adcpol,
			    ES8328_ADCCONTROL6, 6, adcpol_txt);

static const DECLARE_TLV_DB_SCALE(play_tlv, -3000, 100, 0);
static const DECLARE_TLV_DB_SCALE(dac_adc_tlv, -9600, 50, 0);
static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0);
static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 300, 0);

static const struct {
	int rate;
	unsigned int val;
} deemph_settings[] = {
	{ 0,     ES8328_DACCONTROL6_DEEMPH_OFF },
	{ 32000, ES8328_DACCONTROL6_DEEMPH_32k },
	{ 44100, ES8328_DACCONTROL6_DEEMPH_44_1k },
	{ 48000, ES8328_DACCONTROL6_DEEMPH_48k },
};

static int es8328_set_deemph(struct snd_soc_codec *codec)
{
	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
	int val, i, best;

	/*
	 * If we're using deemphasis select the nearest available sample
	 * rate.
	 */
	if (es8328->deemph) {
		best = 0;
		for (i = 1; i < ARRAY_SIZE(deemph_settings); i++) {
			if (abs(deemph_settings[i].rate - es8328->playback_fs) <
			    abs(deemph_settings[best].rate - es8328->playback_fs))
				best = i;
		}

		val = deemph_settings[best].val;
	} else {
		val = ES8328_DACCONTROL6_DEEMPH_OFF;
	}

	dev_dbg(codec->dev, "Set deemphasis %d\n", val);

	return snd_soc_update_bits(codec, ES8328_DACCONTROL6,
			ES8328_DACCONTROL6_DEEMPH_MASK, val);
}

static int es8328_get_deemph(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.integer.value[0] = es8328->deemph;
	return 0;
}

static int es8328_put_deemph(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
	unsigned int deemph = ucontrol->value.integer.value[0];
	int ret;

	if (deemph > 1)
		return -EINVAL;

	ret = es8328_set_deemph(codec);
	if (ret < 0)
		return ret;

	es8328->deemph = deemph;

	return 0;
}



static const struct snd_kcontrol_new es8328_snd_controls[] = {
	SOC_DOUBLE_R_TLV("Capture Digital Volume",
		ES8328_ADCCONTROL8, ES8328_ADCCONTROL9,
		 0, 0xc0, 1, dac_adc_tlv),
	SOC_SINGLE("Capture ZC Switch", ES8328_ADCCONTROL7, 6, 1, 0),

	SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
		    es8328_get_deemph, es8328_put_deemph),

	SOC_ENUM("Capture Polarity", adcpol),

	SOC_SINGLE_TLV("Left Mixer Left Bypass Volume",
			ES8328_DACCONTROL17, 3, 7, 1, bypass_tlv),
	SOC_SINGLE_TLV("Left Mixer Right Bypass Volume",
			ES8328_DACCONTROL19, 3, 7, 1, bypass_tlv),
	SOC_SINGLE_TLV("Right Mixer Left Bypass Volume",
			ES8328_DACCONTROL18, 3, 7, 1, bypass_tlv),
	SOC_SINGLE_TLV("Right Mixer Right Bypass Volume",
			ES8328_DACCONTROL20, 3, 7, 1, bypass_tlv),

	SOC_DOUBLE_R_TLV("PCM Volume",
			ES8328_LDACVOL, ES8328_RDACVOL,
			0, ES8328_DACVOL_MAX, 1, dac_adc_tlv),

	SOC_DOUBLE_R_TLV("Output 1 Playback Volume",
			ES8328_LOUT1VOL, ES8328_ROUT1VOL,
			0, ES8328_OUT1VOL_MAX, 0, play_tlv),

	SOC_DOUBLE_R_TLV("Output 2 Playback Volume",
			ES8328_LOUT2VOL, ES8328_ROUT2VOL,
			0, ES8328_OUT2VOL_MAX, 0, play_tlv),

	SOC_DOUBLE_TLV("Mic PGA Volume", ES8328_ADCCONTROL1,
			4, 0, 8, 0, mic_tlv),
};

/*
 * DAPM Controls
 */

static const char * const es8328_line_texts[] = {
	"Line 1", "Line 2", "PGA", "Differential"};

static const struct soc_enum es8328_lline_enum =
	SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 3,
			      ARRAY_SIZE(es8328_line_texts),
			      es8328_line_texts);
static const struct snd_kcontrol_new es8328_left_line_controls =
	SOC_DAPM_ENUM("Route", es8328_lline_enum);

static const struct soc_enum es8328_rline_enum =
	SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 0,
			      ARRAY_SIZE(es8328_line_texts),
			      es8328_line_texts);
static const struct snd_kcontrol_new es8328_right_line_controls =
	SOC_DAPM_ENUM("Route", es8328_lline_enum);

/* Left Mixer */
static const struct snd_kcontrol_new es8328_left_mixer_controls[] = {
	SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL17, 7, 1, 0),
	SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL17, 6, 1, 0),
	SOC_DAPM_SINGLE("Right Playback Switch", ES8328_DACCONTROL18, 7, 1, 0),
	SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL18, 6, 1, 0),
};

/* Right Mixer */
static const struct snd_kcontrol_new es8328_right_mixer_controls[] = {
	SOC_DAPM_SINGLE("Left Playback Switch", ES8328_DACCONTROL19, 7, 1, 0),
	SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL19, 6, 1, 0),
	SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL20, 7, 1, 0),
	SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL20, 6, 1, 0),
};

static const char * const es8328_pga_sel[] = {
	"Line 1", "Line 2", "Line 3", "Differential"};

/* Left PGA Mux */
static const struct soc_enum es8328_lpga_enum =
	SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 6,
			      ARRAY_SIZE(es8328_pga_sel),
			      es8328_pga_sel);
static const struct snd_kcontrol_new es8328_left_pga_controls =
	SOC_DAPM_ENUM("Route", es8328_lpga_enum);

/* Right PGA Mux */
static const struct soc_enum es8328_rpga_enum =
	SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 4,
			      ARRAY_SIZE(es8328_pga_sel),
			      es8328_pga_sel);
static const struct snd_kcontrol_new es8328_right_pga_controls =
	SOC_DAPM_ENUM("Route", es8328_rpga_enum);

/* Differential Mux */
static const char * const es8328_diff_sel[] = {"Line 1", "Line 2"};
static SOC_ENUM_SINGLE_DECL(diffmux,
			    ES8328_ADCCONTROL3, 7, es8328_diff_sel);
static const struct snd_kcontrol_new es8328_diffmux_controls =
	SOC_DAPM_ENUM("Route", diffmux);

/* Mono ADC Mux */
static const char * const es8328_mono_mux[] = {"Stereo", "Mono (Left)",
	"Mono (Right)", "Digital Mono"};
static SOC_ENUM_SINGLE_DECL(monomux,
			    ES8328_ADCCONTROL3, 3, es8328_mono_mux);
static const struct snd_kcontrol_new es8328_monomux_controls =
	SOC_DAPM_ENUM("Route", monomux);

static const struct snd_soc_dapm_widget es8328_dapm_widgets[] = {
	SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
		&es8328_diffmux_controls),
	SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
		&es8328_monomux_controls),
	SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
		&es8328_monomux_controls),

	SND_SOC_DAPM_MUX("Left PGA Mux", ES8328_ADCPOWER,
			ES8328_ADCPOWER_AINL_OFF, 1,
			&es8328_left_pga_controls),
	SND_SOC_DAPM_MUX("Right PGA Mux", ES8328_ADCPOWER,
			ES8328_ADCPOWER_AINR_OFF, 1,
			&es8328_right_pga_controls),

	SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
		&es8328_left_line_controls),
	SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
		&es8328_right_line_controls),

	SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ES8328_ADCPOWER,
			ES8328_ADCPOWER_ADCR_OFF, 1),
	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ES8328_ADCPOWER,
			ES8328_ADCPOWER_ADCL_OFF, 1),

	SND_SOC_DAPM_SUPPLY("Mic Bias", ES8328_ADCPOWER,
			ES8328_ADCPOWER_MIC_BIAS_OFF, 1, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Mic Bias Gen", ES8328_ADCPOWER,
			ES8328_ADCPOWER_ADC_BIAS_GEN_OFF, 1, NULL, 0),

	SND_SOC_DAPM_SUPPLY("DAC STM", ES8328_CHIPPOWER,
			ES8328_CHIPPOWER_DACSTM_RESET, 1, NULL, 0),
	SND_SOC_DAPM_SUPPLY("ADC STM", ES8328_CHIPPOWER,
			ES8328_CHIPPOWER_ADCSTM_RESET, 1, NULL, 0),

	SND_SOC_DAPM_SUPPLY("DAC DIG", ES8328_CHIPPOWER,
			ES8328_CHIPPOWER_DACDIG_OFF, 1, NULL, 0),
	SND_SOC_DAPM_SUPPLY("ADC DIG", ES8328_CHIPPOWER,
			ES8328_CHIPPOWER_ADCDIG_OFF, 1, NULL, 0),

	SND_SOC_DAPM_SUPPLY("DAC DLL", ES8328_CHIPPOWER,
			ES8328_CHIPPOWER_DACDLL_OFF, 1, NULL, 0),
	SND_SOC_DAPM_SUPPLY("ADC DLL", ES8328_CHIPPOWER,
			ES8328_CHIPPOWER_ADCDLL_OFF, 1, NULL, 0),

	SND_SOC_DAPM_SUPPLY("ADC Vref", ES8328_CHIPPOWER,
			ES8328_CHIPPOWER_ADCVREF_OFF, 1, NULL, 0),
	SND_SOC_DAPM_SUPPLY("DAC Vref", ES8328_CHIPPOWER,
			ES8328_CHIPPOWER_DACVREF_OFF, 1, NULL, 0),

	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", ES8328_DACPOWER,
			ES8328_DACPOWER_RDAC_OFF, 1),
	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", ES8328_DACPOWER,
			ES8328_DACPOWER_LDAC_OFF, 1),

	SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
		&es8328_left_mixer_controls[0],
		ARRAY_SIZE(es8328_left_mixer_controls)),
	SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
		&es8328_right_mixer_controls[0],
		ARRAY_SIZE(es8328_right_mixer_controls)),

	SND_SOC_DAPM_PGA("Right Out 2", ES8328_DACPOWER,
			ES8328_DACPOWER_ROUT2_ON, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Left Out 2", ES8328_DACPOWER,
			ES8328_DACPOWER_LOUT2_ON, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Right Out 1", ES8328_DACPOWER,
			ES8328_DACPOWER_ROUT1_ON, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Left Out 1", ES8328_DACPOWER,
			ES8328_DACPOWER_LOUT1_ON, 0, NULL, 0),

	SND_SOC_DAPM_OUTPUT("LOUT1"),
	SND_SOC_DAPM_OUTPUT("ROUT1"),
	SND_SOC_DAPM_OUTPUT("LOUT2"),
	SND_SOC_DAPM_OUTPUT("ROUT2"),

	SND_SOC_DAPM_INPUT("LINPUT1"),
	SND_SOC_DAPM_INPUT("LINPUT2"),
	SND_SOC_DAPM_INPUT("RINPUT1"),
	SND_SOC_DAPM_INPUT("RINPUT2"),
};

static const struct snd_soc_dapm_route es8328_dapm_routes[] = {

	{ "Left Line Mux", "Line 1", "LINPUT1" },
	{ "Left Line Mux", "Line 2", "LINPUT2" },
	{ "Left Line Mux", "PGA", "Left PGA Mux" },
	{ "Left Line Mux", "Differential", "Differential Mux" },

	{ "Right Line Mux", "Line 1", "RINPUT1" },
	{ "Right Line Mux", "Line 2", "RINPUT2" },
	{ "Right Line Mux", "PGA", "Right PGA Mux" },
	{ "Right Line Mux", "Differential", "Differential Mux" },

	{ "Left PGA Mux", "Line 1", "LINPUT1" },
	{ "Left PGA Mux", "Line 2", "LINPUT2" },
	{ "Left PGA Mux", "Differential", "Differential Mux" },

	{ "Right PGA Mux", "Line 1", "RINPUT1" },
	{ "Right PGA Mux", "Line 2", "RINPUT2" },
	{ "Right PGA Mux", "Differential", "Differential Mux" },

	{ "Differential Mux", "Line 1", "LINPUT1" },
	{ "Differential Mux", "Line 1", "RINPUT1" },
	{ "Differential Mux", "Line 2", "LINPUT2" },
	{ "Differential Mux", "Line 2", "RINPUT2" },

	{ "Left ADC Mux", "Stereo", "Left PGA Mux" },
	{ "Left ADC Mux", "Mono (Left)", "Left PGA Mux" },
	{ "Left ADC Mux", "Digital Mono", "Left PGA Mux" },

	{ "Right ADC Mux", "Stereo", "Right PGA Mux" },
	{ "Right ADC Mux", "Mono (Right)", "Right PGA Mux" },
	{ "Right ADC Mux", "Digital Mono", "Right PGA Mux" },

	{ "Left ADC", NULL, "Left ADC Mux" },
	{ "Right ADC", NULL, "Right ADC Mux" },

	{ "ADC DIG", NULL, "ADC STM" },
	{ "ADC DIG", NULL, "ADC Vref" },
	{ "ADC DIG", NULL, "ADC DLL" },

	{ "Left ADC", NULL, "ADC DIG" },
	{ "Right ADC", NULL, "ADC DIG" },

	{ "Mic Bias", NULL, "Mic Bias Gen" },

	{ "Left Line Mux", "Line 1", "LINPUT1" },
	{ "Left Line Mux", "Line 2", "LINPUT2" },
	{ "Left Line Mux", "PGA", "Left PGA Mux" },
	{ "Left Line Mux", "Differential", "Differential Mux" },

	{ "Right Line Mux", "Line 1", "RINPUT1" },
	{ "Right Line Mux", "Line 2", "RINPUT2" },
	{ "Right Line Mux", "PGA", "Right PGA Mux" },
	{ "Right Line Mux", "Differential", "Differential Mux" },

	{ "Left Out 1", NULL, "Left DAC" },
	{ "Right Out 1", NULL, "Right DAC" },
	{ "Left Out 2", NULL, "Left DAC" },
	{ "Right Out 2", NULL, "Right DAC" },

	{ "Left Mixer", "Playback Switch", "Left DAC" },
	{ "Left Mixer", "Left Bypass Switch", "Left Line Mux" },
	{ "Left Mixer", "Right Playback Switch", "Right DAC" },
	{ "Left Mixer", "Right Bypass Switch", "Right Line Mux" },

	{ "Right Mixer", "Left Playback Switch", "Left DAC" },
	{ "Right Mixer", "Left Bypass Switch", "Left Line Mux" },
	{ "Right Mixer", "Playback Switch", "Right DAC" },
	{ "Right Mixer", "Right Bypass Switch", "Right Line Mux" },

	{ "DAC DIG", NULL, "DAC STM" },
	{ "DAC DIG", NULL, "DAC Vref" },
	{ "DAC DIG", NULL, "DAC DLL" },

	{ "Left DAC", NULL, "DAC DIG" },
	{ "Right DAC", NULL, "DAC DIG" },

	{ "Left Out 1", NULL, "Left Mixer" },
	{ "LOUT1", NULL, "Left Out 1" },
	{ "Right Out 1", NULL, "Right Mixer" },
	{ "ROUT1", NULL, "Right Out 1" },

	{ "Left Out 2", NULL, "Left Mixer" },
	{ "LOUT2", NULL, "Left Out 2" },
	{ "Right Out 2", NULL, "Right Mixer" },
	{ "ROUT2", NULL, "Right Out 2" },
};

static int es8328_mute(struct snd_soc_dai *dai, int mute)
{
	return snd_soc_update_bits(dai->codec, ES8328_DACCONTROL3,
			ES8328_DACCONTROL3_DACMUTE,
			mute ? ES8328_DACCONTROL3_DACMUTE : 0);
}

static int es8328_startup(struct snd_pcm_substream *substream,
			  struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);

	if (es8328->sysclk_constraints)
		snd_pcm_hw_constraint_list(substream->runtime, 0,
				SNDRV_PCM_HW_PARAM_RATE,
				es8328->sysclk_constraints);

	return 0;
}

static int es8328_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;
	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
	int i;
	int reg;
	int wl;
	int ratio;

	if (!es8328->sysclk_constraints) {
		dev_err(codec->dev, "No MCLK configured\n");
		return -EINVAL;
	}

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		reg = ES8328_DACCONTROL2;
	else
		reg = ES8328_ADCCONTROL5;

	for (i = 0; i < es8328->sysclk_constraints->count; i++)
		if (es8328->sysclk_constraints->list[i] == params_rate(params))
			break;

	if (i == es8328->sysclk_constraints->count) {
		dev_err(codec->dev, "LRCLK %d unsupported with current clock\n",
			params_rate(params));
		return -EINVAL;
	}

	ratio = es8328->mclk_ratios[i];
	snd_soc_update_bits(codec, ES8328_MASTERMODE,
			ES8328_MASTERMODE_MCLKDIV2,
			es8328->mclkdiv2 ? ES8328_MASTERMODE_MCLKDIV2 : 0);

	switch (params_width(params)) {
	case 16:
		wl = 3;
		break;
	case 18:
		wl = 2;
		break;
	case 20:
		wl = 1;
		break;
	case 24:
		wl = 0;
		break;
	case 32:
		wl = 4;
		break;
	default:
		return -EINVAL;
	}

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		snd_soc_update_bits(codec, ES8328_DACCONTROL1,
				ES8328_DACCONTROL1_DACWL_MASK,
				wl << ES8328_DACCONTROL1_DACWL_SHIFT);

		es8328->playback_fs = params_rate(params);
		es8328_set_deemph(codec);
	} else
		snd_soc_update_bits(codec, ES8328_ADCCONTROL4,
				ES8328_ADCCONTROL4_ADCWL_MASK,
				wl << ES8328_ADCCONTROL4_ADCWL_SHIFT);

	return snd_soc_update_bits(codec, reg, ES8328_RATEMASK, ratio);
}

static int es8328_set_sysclk(struct snd_soc_dai *codec_dai,
		int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
	int mclkdiv2 = 0;

	switch (freq) {
	case 0:
		es8328->sysclk_constraints = NULL;
		es8328->mclk_ratios = NULL;
		break;
	case 22579200:
		mclkdiv2 = 1;
		/* fallthru */
	case 11289600:
		es8328->sysclk_constraints = &constraints_11289;
		es8328->mclk_ratios = ratios_11289;
		break;
	case 24576000:
		mclkdiv2 = 1;
		/* fallthru */
	case 12288000:
		es8328->sysclk_constraints = &constraints_12288;
		es8328->mclk_ratios = ratios_12288;
		break;
	default:
		return -EINVAL;
	}

	es8328->mclkdiv2 = mclkdiv2;
	return 0;
}

static int es8328_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u8 dac_mode = 0;
	u8 adc_mode = 0;

	/* set master/slave audio interface */
	if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBM_CFM)
		return -EINVAL;

	/* interface format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		dac_mode |= ES8328_DACCONTROL1_DACFORMAT_I2S;
		adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_I2S;
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		dac_mode |= ES8328_DACCONTROL1_DACFORMAT_RJUST;
		adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_RJUST;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		dac_mode |= ES8328_DACCONTROL1_DACFORMAT_LJUST;
		adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_LJUST;
		break;
	default:
		return -EINVAL;
	}

	/* clock inversion */
	if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF)
		return -EINVAL;

	snd_soc_update_bits(codec, ES8328_DACCONTROL1,
			ES8328_DACCONTROL1_DACFORMAT_MASK, dac_mode);
	snd_soc_update_bits(codec, ES8328_ADCCONTROL4,
			ES8328_ADCCONTROL4_ADCFORMAT_MASK, adc_mode);

	/* Master serial port mode, with BCLK generated automatically */
	snd_soc_update_bits(codec, ES8328_MASTERMODE,
			ES8328_MASTERMODE_MSC, ES8328_MASTERMODE_MSC);

	return 0;
}

static int es8328_set_bias_level(struct snd_soc_codec *codec,
				 enum snd_soc_bias_level level)
{
	switch (level) {
	case SND_SOC_BIAS_ON:
		break;

	case SND_SOC_BIAS_PREPARE:
		/* VREF, VMID=2x50k, digital enabled */
		snd_soc_write(codec, ES8328_CHIPPOWER, 0);
		snd_soc_update_bits(codec, ES8328_CONTROL1,
				ES8328_CONTROL1_VMIDSEL_MASK |
				ES8328_CONTROL1_ENREF,
				ES8328_CONTROL1_VMIDSEL_50k |
				ES8328_CONTROL1_ENREF);
		break;

	case SND_SOC_BIAS_STANDBY:
		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
			snd_soc_update_bits(codec, ES8328_CONTROL1,
					ES8328_CONTROL1_VMIDSEL_MASK |
					ES8328_CONTROL1_ENREF,
					ES8328_CONTROL1_VMIDSEL_5k |
					ES8328_CONTROL1_ENREF);

			/* Charge caps */
			msleep(100);
		}

		snd_soc_write(codec, ES8328_CONTROL2,
				ES8328_CONTROL2_OVERCURRENT_ON |
				ES8328_CONTROL2_THERMAL_SHUTDOWN_ON);

		/* VREF, VMID=2*500k, digital stopped */
		snd_soc_update_bits(codec, ES8328_CONTROL1,
				ES8328_CONTROL1_VMIDSEL_MASK |
				ES8328_CONTROL1_ENREF,
				ES8328_CONTROL1_VMIDSEL_500k |
				ES8328_CONTROL1_ENREF);
		break;

	case SND_SOC_BIAS_OFF:
		snd_soc_update_bits(codec, ES8328_CONTROL1,
				ES8328_CONTROL1_VMIDSEL_MASK |
				ES8328_CONTROL1_ENREF,
				0);
		break;
	}
	return 0;
}

static const struct snd_soc_dai_ops es8328_dai_ops = {
	.startup	= es8328_startup,
	.hw_params	= es8328_hw_params,
	.digital_mute	= es8328_mute,
	.set_sysclk	= es8328_set_sysclk,
	.set_fmt	= es8328_set_dai_fmt,
};

static struct snd_soc_dai_driver es8328_dai = {
	.name = "es8328-hifi-analog",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = ES8328_RATES,
		.formats = ES8328_FORMATS,
	},
	.capture = {
		.stream_name = "Capture",
		.channels_min = 2,
		.channels_max = 2,
		.rates = ES8328_RATES,
		.formats = ES8328_FORMATS,
	},
	.ops = &es8328_dai_ops,
	.symmetric_rates = 1,
};

static int es8328_suspend(struct snd_soc_codec *codec)
{
	struct es8328_priv *es8328;
	int ret;

	es8328 = snd_soc_codec_get_drvdata(codec);

	clk_disable_unprepare(es8328->clk);

	ret = regulator_bulk_disable(ARRAY_SIZE(es8328->supplies),
			es8328->supplies);
	if (ret) {
		dev_err(codec->dev, "unable to disable regulators\n");
		return ret;
	}
	return 0;
}

static int es8328_resume(struct snd_soc_codec *codec)
{
	struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
	struct es8328_priv *es8328;
	int ret;

	es8328 = snd_soc_codec_get_drvdata(codec);

	ret = clk_prepare_enable(es8328->clk);
	if (ret) {
		dev_err(codec->dev, "unable to enable clock\n");
		return ret;
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies),
					es8328->supplies);
	if (ret) {
		dev_err(codec->dev, "unable to enable regulators\n");
		return ret;
	}

	regcache_mark_dirty(regmap);
	ret = regcache_sync(regmap);
	if (ret) {
		dev_err(codec->dev, "unable to sync regcache\n");
		return ret;
	}

	return 0;
}

static int es8328_codec_probe(struct snd_soc_codec *codec)
{
	struct es8328_priv *es8328;
	int ret;

	es8328 = snd_soc_codec_get_drvdata(codec);

	ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies),
					es8328->supplies);
	if (ret) {
		dev_err(codec->dev, "unable to enable regulators\n");
		return ret;
	}

	/* Setup clocks */
	es8328->clk = devm_clk_get(codec->dev, NULL);
	if (IS_ERR(es8328->clk)) {
		dev_err(codec->dev, "codec clock missing or invalid\n");
		ret = PTR_ERR(es8328->clk);
		goto clk_fail;
	}

	ret = clk_prepare_enable(es8328->clk);
	if (ret) {
		dev_err(codec->dev, "unable to prepare codec clk\n");
		goto clk_fail;
	}

	return 0;

clk_fail:
	regulator_bulk_disable(ARRAY_SIZE(es8328->supplies),
			       es8328->supplies);
	return ret;
}

static int es8328_remove(struct snd_soc_codec *codec)
{
	struct es8328_priv *es8328;

	es8328 = snd_soc_codec_get_drvdata(codec);

	if (es8328->clk)
		clk_disable_unprepare(es8328->clk);

	regulator_bulk_disable(ARRAY_SIZE(es8328->supplies),
			       es8328->supplies);

	return 0;
}

const struct regmap_config es8328_regmap_config = {
	.reg_bits	= 8,
	.val_bits	= 8,
	.max_register	= ES8328_REG_MAX,
	.cache_type	= REGCACHE_RBTREE,
	.use_single_rw	= true,
};
EXPORT_SYMBOL_GPL(es8328_regmap_config);

static struct snd_soc_codec_driver es8328_codec_driver = {
	.probe		  = es8328_codec_probe,
	.suspend	  = es8328_suspend,
	.resume		  = es8328_resume,
	.remove		  = es8328_remove,
	.set_bias_level	  = es8328_set_bias_level,
	.suspend_bias_off = true,

	.component_driver = {
		.controls		= es8328_snd_controls,
		.num_controls		= ARRAY_SIZE(es8328_snd_controls),
		.dapm_widgets		= es8328_dapm_widgets,
		.num_dapm_widgets	= ARRAY_SIZE(es8328_dapm_widgets),
		.dapm_routes		= es8328_dapm_routes,
		.num_dapm_routes	= ARRAY_SIZE(es8328_dapm_routes),
	},
};

int es8328_probe(struct device *dev, struct regmap *regmap)
{
	struct es8328_priv *es8328;
	int ret;
	int i;

	if (IS_ERR(regmap))
		return PTR_ERR(regmap);

	es8328 = devm_kzalloc(dev, sizeof(*es8328), GFP_KERNEL);
	if (es8328 == NULL)
		return -ENOMEM;

	es8328->regmap = regmap;

	for (i = 0; i < ARRAY_SIZE(es8328->supplies); i++)
		es8328->supplies[i].supply = supply_names[i];

	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(es8328->supplies),
				es8328->supplies);
	if (ret) {
		dev_err(dev, "unable to get regulators\n");
		return ret;
	}

	dev_set_drvdata(dev, es8328);

	return snd_soc_register_codec(dev,
			&es8328_codec_driver, &es8328_dai, 1);
}
EXPORT_SYMBOL_GPL(es8328_probe);

MODULE_DESCRIPTION("ASoC ES8328 driver");
MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");
MODULE_LICENSE("GPL");