summaryrefslogtreecommitdiff
path: root/sound/soc/codecs/wm9090.c
blob: b5afa01aa3835506becd96ca72b3df82801c7061 (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
/*
 * ALSA SoC WM9090 driver
 *
 * Copyright 2009, 2010 Wolfson Microelectronics
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

#include <linux/module.h>
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include <sound/wm9090.h>

#include "wm9090.h"

static const u16 wm9090_reg_defaults[] = {
	0x9093,     /* R0   - Software Reset */
	0x0006,     /* R1   - Power Management (1) */
	0x6000,     /* R2   - Power Management (2) */
	0x0000,     /* R3   - Power Management (3) */
	0x0000,     /* R4 */
	0x0000,     /* R5 */
	0x01C0,     /* R6   - Clocking 1 */
	0x0000,     /* R7 */
	0x0000,     /* R8 */
	0x0000,     /* R9 */
	0x0000,     /* R10 */
	0x0000,     /* R11 */
	0x0000,     /* R12 */
	0x0000,     /* R13 */
	0x0000,     /* R14 */
	0x0000,     /* R15 */
	0x0000,     /* R16 */
	0x0000,     /* R17 */
	0x0000,     /* R18 */
	0x0000,     /* R19 */
	0x0000,     /* R20 */
	0x0000,     /* R21 */
	0x0003,     /* R22  - IN1 Line Control */
	0x0003,     /* R23  - IN2 Line Control */
	0x0083,     /* R24  - IN1 Line Input A Volume */
	0x0083,     /* R25  - IN1  Line Input B Volume */
	0x0083,     /* R26  - IN2 Line Input A Volume */
	0x0083,     /* R27  - IN2 Line Input B Volume */
	0x002D,     /* R28  - Left Output Volume */
	0x002D,     /* R29  - Right Output Volume */
	0x0000,     /* R30 */
	0x0000,     /* R31 */
	0x0000,     /* R32 */
	0x0000,     /* R33 */
	0x0100,     /* R34  - SPKMIXL Attenuation */
	0x0000,     /* R35 */
	0x0010,     /* R36  - SPKOUT Mixers */
	0x0140,     /* R37  - ClassD3 */
	0x0039,     /* R38  - Speaker Volume Left */
	0x0000,     /* R39 */
	0x0000,     /* R40 */
	0x0000,     /* R41 */
	0x0000,     /* R42 */
	0x0000,     /* R43 */
	0x0000,     /* R44 */
	0x0000,     /* R45  - Output Mixer1 */
	0x0000,     /* R46  - Output Mixer2 */
	0x0100,     /* R47  - Output Mixer3 */
	0x0100,     /* R48  - Output Mixer4 */
	0x0000,     /* R49 */
	0x0000,     /* R50 */
	0x0000,     /* R51 */
	0x0000,     /* R52 */
	0x0000,     /* R53 */
	0x0000,     /* R54  - Speaker Mixer */
	0x0000,     /* R55 */
	0x0000,     /* R56 */
	0x000D,     /* R57  - AntiPOP2 */
	0x0000,     /* R58 */
	0x0000,     /* R59 */
	0x0000,     /* R60 */
	0x0000,     /* R61 */
	0x0000,     /* R62 */
	0x0000,     /* R63 */
	0x0000,     /* R64 */
	0x0000,     /* R65 */
	0x0000,     /* R66 */
	0x0000,     /* R67 */
	0x0000,     /* R68 */
	0x0000,     /* R69 */
	0x0000,     /* R70  - Write Sequencer 0 */
	0x0000,     /* R71  - Write Sequencer 1 */
	0x0000,     /* R72  - Write Sequencer 2 */
	0x0000,     /* R73  - Write Sequencer 3 */
	0x0000,     /* R74  - Write Sequencer 4 */
	0x0000,     /* R75  - Write Sequencer 5 */
	0x1F25,     /* R76  - Charge Pump 1 */
	0x0000,     /* R77 */
	0x0000,     /* R78 */
	0x0000,     /* R79 */
	0x0000,     /* R80 */
	0x0000,     /* R81 */
	0x0000,     /* R82 */
	0x0000,     /* R83 */
	0x0000,     /* R84  - DC Servo 0 */
	0x054A,     /* R85  - DC Servo 1 */
	0x0000,     /* R86 */
	0x0000,     /* R87  - DC Servo 3 */
	0x0000,     /* R88  - DC Servo Readback 0 */
	0x0000,     /* R89  - DC Servo Readback 1 */
	0x0000,     /* R90  - DC Servo Readback 2 */
	0x0000,     /* R91 */
	0x0000,     /* R92 */
	0x0000,     /* R93 */
	0x0000,     /* R94 */
	0x0000,     /* R95 */
	0x0100,     /* R96  - Analogue HP 0 */
	0x0000,     /* R97 */
	0x8640,     /* R98  - AGC Control 0 */
	0xC000,     /* R99  - AGC Control 1 */
	0x0200,     /* R100 - AGC Control 2 */
};

/* This struct is used to save the context */
struct wm9090_priv {
	struct mutex mutex;
	u16 reg_cache[WM9090_MAX_REGISTER + 1];
	struct wm9090_platform_data pdata;
	void *control_data;
};

static int wm9090_volatile(unsigned int reg)
{
	switch (reg) {
	case WM9090_SOFTWARE_RESET:
	case WM9090_DC_SERVO_0:
	case WM9090_DC_SERVO_READBACK_0:
	case WM9090_DC_SERVO_READBACK_1:
	case WM9090_DC_SERVO_READBACK_2:
		return 1;

	default:
		return 0;
	}
}

static void wait_for_dc_servo(struct snd_soc_codec *codec)
{
	unsigned int reg;
	int count = 0;

	dev_dbg(codec->dev, "Waiting for DC servo...\n");
	do {
		count++;
		msleep(1);
		reg = snd_soc_read(codec, WM9090_DC_SERVO_READBACK_0);
		dev_dbg(codec->dev, "DC servo status: %x\n", reg);
	} while ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
		 != WM9090_DCS_CAL_COMPLETE_MASK && count < 1000);

	if ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
	    != WM9090_DCS_CAL_COMPLETE_MASK)
		dev_err(codec->dev, "Timed out waiting for DC Servo\n");
}

static const unsigned int in_tlv[] = {
	TLV_DB_RANGE_HEAD(6),
	0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0),
	1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0),
	4, 6, TLV_DB_SCALE_ITEM(600, 600, 0),
};
static const unsigned int mix_tlv[] = {
	TLV_DB_RANGE_HEAD(4),
	0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0),
	3, 3, TLV_DB_SCALE_ITEM(0, 0, 0),
};
static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
static const unsigned int spkboost_tlv[] = {
	TLV_DB_RANGE_HEAD(7),
	0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
	7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0),
};

static const struct snd_kcontrol_new wm9090_controls[] = {
SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0,
	       in_tlv),
SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1),
SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0),

SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0,
	       in_tlv),
SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1),
SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0),

SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1),
SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1,
	       mix_tlv),
SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1,
	       mix_tlv),

SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1),
SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1,
	       mix_tlv),
SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1,
	       mix_tlv),

SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1),
SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1,
	       mix_tlv),
SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1,
	       mix_tlv),

SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME,
		 WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv),
SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME,
	     WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1),
SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME,
	     WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0),

SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0,
	       out_tlv),
SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1),
SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0),
SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv),
};

static const struct snd_kcontrol_new wm9090_in1_se_controls[] = {
SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0,
	       in_tlv),
SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1),
SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0),

SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1,
	       mix_tlv),
SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1,
	       mix_tlv),
SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1,
	       mix_tlv),
};

static const struct snd_kcontrol_new wm9090_in2_se_controls[] = {
SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0,
	       in_tlv),
SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1),
SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0),

SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1,
	       mix_tlv),
SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1,
	       mix_tlv),
SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1,
	       mix_tlv),
};

static int hp_ev(struct snd_soc_dapm_widget *w,
		 struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = w->codec;
	unsigned int reg = snd_soc_read(codec, WM9090_ANALOGUE_HP_0);

	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
		snd_soc_update_bits(codec, WM9090_CHARGE_PUMP_1,
				    WM9090_CP_ENA, WM9090_CP_ENA);

		msleep(5);

		snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1,
				    WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
				    WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA);

		reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY;
		snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg);

		/* Start the DC servo.  We don't currently use the
		 * ability to save the state since we don't have full
		 * control of the analogue paths and they can change
		 * DC offsets; see the WM8904 driver for an example of
		 * doing so.
		 */
		snd_soc_write(codec, WM9090_DC_SERVO_0,
			      WM9090_DCS_ENA_CHAN_0 |
			      WM9090_DCS_ENA_CHAN_1 |
			      WM9090_DCS_TRIG_STARTUP_1 |
			      WM9090_DCS_TRIG_STARTUP_0);
		wait_for_dc_servo(codec);

		reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT |
			WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT;
		snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg);
		break;

	case SND_SOC_DAPM_PRE_PMD:
		reg &= ~(WM9090_HPOUT1L_RMV_SHORT |
			 WM9090_HPOUT1L_DLY |
			 WM9090_HPOUT1L_OUTP |
			 WM9090_HPOUT1R_RMV_SHORT |
			 WM9090_HPOUT1R_DLY |
			 WM9090_HPOUT1R_OUTP);

		snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg);

		snd_soc_write(codec, WM9090_DC_SERVO_0, 0);

		snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1,
				    WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
				    0);

		snd_soc_update_bits(codec, WM9090_CHARGE_PUMP_1,
				    WM9090_CP_ENA, 0);
		break;
	}

	return 0;
}

static const struct snd_kcontrol_new spkmix[] = {
SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0),
SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0),
SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0),
SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0),
};

static const struct snd_kcontrol_new spkout[] = {
SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0),
};

static const struct snd_kcontrol_new mixoutl[] = {
SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0),
SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0),
SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0),
SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0),
};

static const struct snd_kcontrol_new mixoutr[] = {
SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0),
SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0),
SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0),
SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0),
};

static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("IN1+"),
SND_SOC_DAPM_INPUT("IN1-"),
SND_SOC_DAPM_INPUT("IN2+"),
SND_SOC_DAPM_INPUT("IN2-"),

SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0),

SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0),
SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0),

SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0,
		   spkmix, ARRAY_SIZE(spkmix)),
SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0,
		   mixoutl, ARRAY_SIZE(mixoutl)),
SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0,
		   mixoutr, ARRAY_SIZE(mixoutr)),

SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
		   hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),

SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0,
		   spkout, ARRAY_SIZE(spkout)),

SND_SOC_DAPM_OUTPUT("HPR"),
SND_SOC_DAPM_OUTPUT("HPL"),
SND_SOC_DAPM_OUTPUT("Speaker"),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{ "IN1A PGA", NULL, "IN1+" },
	{ "IN2A PGA", NULL, "IN2+" },

	{ "SPKMIX", "IN1A Switch", "IN1A PGA" },
	{ "SPKMIX", "IN2A Switch", "IN2A PGA" },

	{ "MIXOUTL", "IN1A Switch", "IN1A PGA" },
	{ "MIXOUTL", "IN2A Switch", "IN2A PGA" },

	{ "MIXOUTR", "IN1A Switch", "IN1A PGA" },
	{ "MIXOUTR", "IN2A Switch", "IN2A PGA" },

	{ "HP PGA", NULL, "OSC" },
	{ "HP PGA", NULL, "MIXOUTL" },
	{ "HP PGA", NULL, "MIXOUTR" },

	{ "HPL", NULL, "HP PGA" },
	{ "HPR", NULL, "HP PGA" },

	{ "SPKPGA", NULL, "OSC" },
	{ "SPKPGA", NULL, "SPKMIX" },

	{ "SPKOUT", "Mixer Switch", "SPKPGA" },

	{ "Speaker", NULL, "SPKOUT" },
};

static const struct snd_soc_dapm_route audio_map_in1_se[] = {
	{ "IN1B PGA", NULL, "IN1-" },	

	{ "SPKMIX", "IN1B Switch", "IN1B PGA" },
	{ "MIXOUTL", "IN1B Switch", "IN1B PGA" },
	{ "MIXOUTR", "IN1B Switch", "IN1B PGA" },
};

static const struct snd_soc_dapm_route audio_map_in1_diff[] = {
	{ "IN1A PGA", NULL, "IN1-" },	
};

static const struct snd_soc_dapm_route audio_map_in2_se[] = {
	{ "IN2B PGA", NULL, "IN2-" },	

	{ "SPKMIX", "IN2B Switch", "IN2B PGA" },
	{ "MIXOUTL", "IN2B Switch", "IN2B PGA" },
	{ "MIXOUTR", "IN2B Switch", "IN2B PGA" },
};

static const struct snd_soc_dapm_route audio_map_in2_diff[] = {
	{ "IN2A PGA", NULL, "IN2-" },	
};

static int wm9090_add_controls(struct snd_soc_codec *codec)
{
	struct wm9090_priv *wm9090 = snd_soc_codec_get_drvdata(codec);
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int i;

	snd_soc_dapm_new_controls(dapm, wm9090_dapm_widgets,
				  ARRAY_SIZE(wm9090_dapm_widgets));

	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_add_controls(codec, wm9090_controls,
			     ARRAY_SIZE(wm9090_controls));

	if (wm9090->pdata.lin1_diff) {
		snd_soc_dapm_add_routes(dapm, audio_map_in1_diff,
					ARRAY_SIZE(audio_map_in1_diff));
	} else {
		snd_soc_dapm_add_routes(dapm, audio_map_in1_se,
					ARRAY_SIZE(audio_map_in1_se));
		snd_soc_add_controls(codec, wm9090_in1_se_controls,
				     ARRAY_SIZE(wm9090_in1_se_controls));
	}

	if (wm9090->pdata.lin2_diff) {
		snd_soc_dapm_add_routes(dapm, audio_map_in2_diff,
					ARRAY_SIZE(audio_map_in2_diff));
	} else {
		snd_soc_dapm_add_routes(dapm, audio_map_in2_se,
					ARRAY_SIZE(audio_map_in2_se));
		snd_soc_add_controls(codec, wm9090_in2_se_controls,
				     ARRAY_SIZE(wm9090_in2_se_controls));
	}

	if (wm9090->pdata.agc_ena) {
		for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++)
			snd_soc_write(codec, WM9090_AGC_CONTROL_0 + i,
				      wm9090->pdata.agc[i]);
		snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_3,
				    WM9090_AGC_ENA, WM9090_AGC_ENA);
	} else {
		snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_3,
				    WM9090_AGC_ENA, 0);
	}

	return 0;

}

/*
 * The machine driver should call this from their set_bias_level; if there
 * isn't one then this can just be set as the set_bias_level function.
 */
static int wm9090_set_bias_level(struct snd_soc_codec *codec,
				 enum snd_soc_bias_level level)
{
	u16 *reg_cache = codec->reg_cache;
	int i, ret;

	switch (level) {
	case SND_SOC_BIAS_ON:
		break;

	case SND_SOC_BIAS_PREPARE:
		snd_soc_update_bits(codec, WM9090_ANTIPOP2, WM9090_VMID_ENA,
				    WM9090_VMID_ENA);
		snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1,
				    WM9090_BIAS_ENA |
				    WM9090_VMID_RES_MASK,
				    WM9090_BIAS_ENA |
				    1 << WM9090_VMID_RES_SHIFT);
		msleep(1);  /* Probably an overestimate */
		break;

	case SND_SOC_BIAS_STANDBY:
		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
			/* Restore the register cache */
			for (i = 1; i < codec->driver->reg_cache_size; i++) {
				if (reg_cache[i] == wm9090_reg_defaults[i])
					continue;
				if (wm9090_volatile(i))
					continue;

				ret = snd_soc_write(codec, i, reg_cache[i]);
				if (ret != 0)
					dev_warn(codec->dev,
						 "Failed to restore register %d: %d\n",
						 i, ret);
			}
		}

		/* We keep VMID off during standby since the combination of
		 * ground referenced outputs and class D speaker mean that
		 * latency is not an issue.
		 */
		snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1,
				    WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0);
		snd_soc_update_bits(codec, WM9090_ANTIPOP2,
				    WM9090_VMID_ENA, 0);
		break;

	case SND_SOC_BIAS_OFF:
		break;
	}

	codec->dapm.bias_level = level;

	return 0;
}

static int wm9090_probe(struct snd_soc_codec *codec)
{
	struct wm9090_priv *wm9090 = snd_soc_codec_get_drvdata(codec);
	int ret;

	codec->control_data = wm9090->control_data;
	ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
	if (ret != 0) {
		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
		return ret;
	}

	ret = snd_soc_read(codec, WM9090_SOFTWARE_RESET);
	if (ret < 0)
		return ret;
	if (ret != wm9090_reg_defaults[WM9090_SOFTWARE_RESET]) {
		dev_err(codec->dev, "Device is not a WM9090, ID=%x\n", ret);
		return -EINVAL;
	}

	ret = snd_soc_write(codec, WM9090_SOFTWARE_RESET, 0);
	if (ret < 0)
		return ret;

	/* Configure some defaults; they will be written out when we
	 * bring the bias up.
	 */
	wm9090->reg_cache[WM9090_IN1_LINE_INPUT_A_VOLUME] |= WM9090_IN1_VU
		| WM9090_IN1A_ZC;
	wm9090->reg_cache[WM9090_IN1_LINE_INPUT_B_VOLUME] |= WM9090_IN1_VU
		| WM9090_IN1B_ZC;
	wm9090->reg_cache[WM9090_IN2_LINE_INPUT_A_VOLUME] |= WM9090_IN2_VU
		| WM9090_IN2A_ZC;
	wm9090->reg_cache[WM9090_IN2_LINE_INPUT_B_VOLUME] |= WM9090_IN2_VU
		| WM9090_IN2B_ZC;
	wm9090->reg_cache[WM9090_SPEAKER_VOLUME_LEFT] |=
		WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC;
	wm9090->reg_cache[WM9090_LEFT_OUTPUT_VOLUME] |=
		WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC;
	wm9090->reg_cache[WM9090_RIGHT_OUTPUT_VOLUME] |=
		WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC;

	wm9090->reg_cache[WM9090_CLOCKING_1] |= WM9090_TOCLK_ENA;

	wm9090_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

	wm9090_add_controls(codec);

	return 0;
}

#ifdef CONFIG_PM
static int wm9090_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
	wm9090_set_bias_level(codec, SND_SOC_BIAS_OFF);

	return 0;
}

static int wm9090_resume(struct snd_soc_codec *codec)
{
	wm9090_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

	return 0;
}
#else
#define wm9090_suspend NULL
#define wm9090_resume NULL
#endif

static int wm9090_remove(struct snd_soc_codec *codec)
{
	wm9090_set_bias_level(codec, SND_SOC_BIAS_OFF);

	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_wm9090 = {
	.probe = 	wm9090_probe,
	.remove = 	wm9090_remove,
	.suspend = 	wm9090_suspend,
	.resume =	wm9090_resume,
	.set_bias_level = wm9090_set_bias_level,
	.reg_cache_size = (WM9090_MAX_REGISTER + 1),
	.reg_word_size = sizeof(u16),
	.reg_cache_default = wm9090_reg_defaults,
	.volatile_register = wm9090_volatile,
};

static int wm9090_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct wm9090_priv *wm9090;
	int ret;

	wm9090 = kzalloc(sizeof(*wm9090), GFP_KERNEL);
	if (wm9090 == NULL) {
		dev_err(&i2c->dev, "Can not allocate memory\n");
		return -ENOMEM;
	}

	if (i2c->dev.platform_data)
		memcpy(&wm9090->pdata, i2c->dev.platform_data,
		       sizeof(wm9090->pdata));

	i2c_set_clientdata(i2c, wm9090);
	wm9090->control_data = i2c;
	mutex_init(&wm9090->mutex);

	ret =  snd_soc_register_codec(&i2c->dev,
			&soc_codec_dev_wm9090,  NULL, 0);
	if (ret < 0)
		kfree(wm9090);
	return ret;
}

static int __devexit wm9090_i2c_remove(struct i2c_client *i2c)
{
	struct wm9090_priv *wm9090 = i2c_get_clientdata(i2c);

	snd_soc_unregister_codec(&i2c->dev);
	kfree(wm9090);

	return 0;
}

static const struct i2c_device_id wm9090_id[] = {
	{ "wm9090", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, wm9090_id);

static struct i2c_driver wm9090_i2c_driver = {
	.driver = {
		.name = "wm9090-codec",
		.owner = THIS_MODULE,
	},
	.probe = wm9090_i2c_probe,
	.remove = __devexit_p(wm9090_i2c_remove),
	.id_table = wm9090_id,
};

static int __init wm9090_init(void)
{
	return i2c_add_driver(&wm9090_i2c_driver);
}
module_init(wm9090_init);

static void __exit wm9090_exit(void)
{
	i2c_del_driver(&wm9090_i2c_driver);
}
module_exit(wm9090_exit);

MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("WM9090 ASoC driver");
MODULE_LICENSE("GPL");