forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathwm8580.c
1063 lines (900 loc) · 27.5 KB
/
wm8580.c
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
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* wm8580.c -- WM8580 and WM8581 ALSA Soc Audio driver
*
* Copyright 2008-12 Wolfson Microelectronics PLC.
*
* Notes:
* The WM8580 is a multichannel codec with S/PDIF support, featuring six
* DAC channels and two ADC channels.
*
* The WM8581 is a multichannel codec with S/PDIF support, featuring eight
* DAC channels and two ADC channels.
*
* Currently only the primary audio interface is supported - S/PDIF and
* the secondary audio interfaces are not.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/of_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/initval.h>
#include <asm/div64.h>
#include "wm8580.h"
/* WM8580 register space */
#define WM8580_PLLA1 0x00
#define WM8580_PLLA2 0x01
#define WM8580_PLLA3 0x02
#define WM8580_PLLA4 0x03
#define WM8580_PLLB1 0x04
#define WM8580_PLLB2 0x05
#define WM8580_PLLB3 0x06
#define WM8580_PLLB4 0x07
#define WM8580_CLKSEL 0x08
#define WM8580_PAIF1 0x09
#define WM8580_PAIF2 0x0A
#define WM8580_SAIF1 0x0B
#define WM8580_PAIF3 0x0C
#define WM8580_PAIF4 0x0D
#define WM8580_SAIF2 0x0E
#define WM8580_DAC_CONTROL1 0x0F
#define WM8580_DAC_CONTROL2 0x10
#define WM8580_DAC_CONTROL3 0x11
#define WM8580_DAC_CONTROL4 0x12
#define WM8580_DAC_CONTROL5 0x13
#define WM8580_DIGITAL_ATTENUATION_DACL1 0x14
#define WM8580_DIGITAL_ATTENUATION_DACR1 0x15
#define WM8580_DIGITAL_ATTENUATION_DACL2 0x16
#define WM8580_DIGITAL_ATTENUATION_DACR2 0x17
#define WM8580_DIGITAL_ATTENUATION_DACL3 0x18
#define WM8580_DIGITAL_ATTENUATION_DACR3 0x19
#define WM8581_DIGITAL_ATTENUATION_DACL4 0x1A
#define WM8581_DIGITAL_ATTENUATION_DACR4 0x1B
#define WM8580_MASTER_DIGITAL_ATTENUATION 0x1C
#define WM8580_ADC_CONTROL1 0x1D
#define WM8580_SPDTXCHAN0 0x1E
#define WM8580_SPDTXCHAN1 0x1F
#define WM8580_SPDTXCHAN2 0x20
#define WM8580_SPDTXCHAN3 0x21
#define WM8580_SPDTXCHAN4 0x22
#define WM8580_SPDTXCHAN5 0x23
#define WM8580_SPDMODE 0x24
#define WM8580_INTMASK 0x25
#define WM8580_GPO1 0x26
#define WM8580_GPO2 0x27
#define WM8580_GPO3 0x28
#define WM8580_GPO4 0x29
#define WM8580_GPO5 0x2A
#define WM8580_INTSTAT 0x2B
#define WM8580_SPDRXCHAN1 0x2C
#define WM8580_SPDRXCHAN2 0x2D
#define WM8580_SPDRXCHAN3 0x2E
#define WM8580_SPDRXCHAN4 0x2F
#define WM8580_SPDRXCHAN5 0x30
#define WM8580_SPDSTAT 0x31
#define WM8580_PWRDN1 0x32
#define WM8580_PWRDN2 0x33
#define WM8580_READBACK 0x34
#define WM8580_RESET 0x35
#define WM8580_MAX_REGISTER 0x35
#define WM8580_DACOSR 0x40
/* PLLB4 (register 7h) */
#define WM8580_PLLB4_MCLKOUTSRC_MASK 0x60
#define WM8580_PLLB4_MCLKOUTSRC_PLLA 0x20
#define WM8580_PLLB4_MCLKOUTSRC_PLLB 0x40
#define WM8580_PLLB4_MCLKOUTSRC_OSC 0x60
#define WM8580_PLLB4_CLKOUTSRC_MASK 0x180
#define WM8580_PLLB4_CLKOUTSRC_PLLACLK 0x080
#define WM8580_PLLB4_CLKOUTSRC_PLLBCLK 0x100
#define WM8580_PLLB4_CLKOUTSRC_OSCCLK 0x180
/* CLKSEL (register 8h) */
#define WM8580_CLKSEL_DAC_CLKSEL_MASK 0x03
#define WM8580_CLKSEL_DAC_CLKSEL_PLLA 0x01
#define WM8580_CLKSEL_DAC_CLKSEL_PLLB 0x02
/* AIF control 1 (registers 9h-bh) */
#define WM8580_AIF_RATE_MASK 0x7
#define WM8580_AIF_BCLKSEL_MASK 0x18
#define WM8580_AIF_MS 0x20
#define WM8580_AIF_CLKSRC_MASK 0xc0
#define WM8580_AIF_CLKSRC_PLLA 0x40
#define WM8580_AIF_CLKSRC_PLLB 0x40
#define WM8580_AIF_CLKSRC_MCLK 0xc0
/* AIF control 2 (registers ch-eh) */
#define WM8580_AIF_FMT_MASK 0x03
#define WM8580_AIF_FMT_RIGHTJ 0x00
#define WM8580_AIF_FMT_LEFTJ 0x01
#define WM8580_AIF_FMT_I2S 0x02
#define WM8580_AIF_FMT_DSP 0x03
#define WM8580_AIF_LENGTH_MASK 0x0c
#define WM8580_AIF_LENGTH_16 0x00
#define WM8580_AIF_LENGTH_20 0x04
#define WM8580_AIF_LENGTH_24 0x08
#define WM8580_AIF_LENGTH_32 0x0c
#define WM8580_AIF_LRP 0x10
#define WM8580_AIF_BCP 0x20
/* Powerdown Register 1 (register 32h) */
#define WM8580_PWRDN1_PWDN 0x001
#define WM8580_PWRDN1_ALLDACPD 0x040
/* Powerdown Register 2 (register 33h) */
#define WM8580_PWRDN2_OSSCPD 0x001
#define WM8580_PWRDN2_PLLAPD 0x002
#define WM8580_PWRDN2_PLLBPD 0x004
#define WM8580_PWRDN2_SPDIFPD 0x008
#define WM8580_PWRDN2_SPDIFTXD 0x010
#define WM8580_PWRDN2_SPDIFRXD 0x020
#define WM8580_DAC_CONTROL5_MUTEALL 0x10
/*
* wm8580 register cache
* We can't read the WM8580 register space when we
* are using 2 wire for device control, so we cache them instead.
*/
static const struct reg_default wm8580_reg_defaults[] = {
{ 0, 0x0121 },
{ 1, 0x017e },
{ 2, 0x007d },
{ 3, 0x0014 },
{ 4, 0x0121 },
{ 5, 0x017e },
{ 6, 0x007d },
{ 7, 0x0194 },
{ 8, 0x0010 },
{ 9, 0x0002 },
{ 10, 0x0002 },
{ 11, 0x00c2 },
{ 12, 0x0182 },
{ 13, 0x0082 },
{ 14, 0x000a },
{ 15, 0x0024 },
{ 16, 0x0009 },
{ 17, 0x0000 },
{ 18, 0x00ff },
{ 19, 0x0000 },
{ 20, 0x00ff },
{ 21, 0x00ff },
{ 22, 0x00ff },
{ 23, 0x00ff },
{ 24, 0x00ff },
{ 25, 0x00ff },
{ 26, 0x00ff },
{ 27, 0x00ff },
{ 28, 0x01f0 },
{ 29, 0x0040 },
{ 30, 0x0000 },
{ 31, 0x0000 },
{ 32, 0x0000 },
{ 33, 0x0000 },
{ 34, 0x0031 },
{ 35, 0x000b },
{ 36, 0x0039 },
{ 37, 0x0000 },
{ 38, 0x0010 },
{ 39, 0x0032 },
{ 40, 0x0054 },
{ 41, 0x0076 },
{ 42, 0x0098 },
{ 43, 0x0000 },
{ 44, 0x0000 },
{ 45, 0x0000 },
{ 46, 0x0000 },
{ 47, 0x0000 },
{ 48, 0x0000 },
{ 49, 0x0000 },
{ 50, 0x005e },
{ 51, 0x003e },
{ 52, 0x0000 },
};
static bool wm8580_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8580_RESET:
return true;
default:
return false;
}
}
struct pll_state {
unsigned int in;
unsigned int out;
};
#define WM8580_NUM_SUPPLIES 3
static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = {
"AVDD",
"DVDD",
"PVDD",
};
struct wm8580_driver_data {
int num_dacs;
};
/* codec private data */
struct wm8580_priv {
struct regmap *regmap;
struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES];
struct pll_state a;
struct pll_state b;
const struct wm8580_driver_data *drvdata;
int sysclk[2];
};
static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
static int wm8580_out_vu(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
unsigned int reg = mc->reg;
unsigned int reg2 = mc->rreg;
int ret;
/* Clear the register cache VU so we write without VU set */
regcache_cache_only(wm8580->regmap, true);
regmap_update_bits(wm8580->regmap, reg, 0x100, 0x000);
regmap_update_bits(wm8580->regmap, reg2, 0x100, 0x000);
regcache_cache_only(wm8580->regmap, false);
ret = snd_soc_put_volsw(kcontrol, ucontrol);
if (ret < 0)
return ret;
/* Now write again with the volume update bit set */
snd_soc_component_update_bits(component, reg, 0x100, 0x100);
snd_soc_component_update_bits(component, reg2, 0x100, 0x100);
return 0;
}
static const struct snd_kcontrol_new wm8580_snd_controls[] = {
SOC_DOUBLE_R_EXT_TLV("DAC1 Playback Volume",
WM8580_DIGITAL_ATTENUATION_DACL1,
WM8580_DIGITAL_ATTENUATION_DACR1,
0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
SOC_DOUBLE_R_EXT_TLV("DAC2 Playback Volume",
WM8580_DIGITAL_ATTENUATION_DACL2,
WM8580_DIGITAL_ATTENUATION_DACR2,
0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
SOC_DOUBLE_R_EXT_TLV("DAC3 Playback Volume",
WM8580_DIGITAL_ATTENUATION_DACL3,
WM8580_DIGITAL_ATTENUATION_DACR3,
0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
SOC_SINGLE("DAC1 Deemphasis Switch", WM8580_DAC_CONTROL3, 0, 1, 0),
SOC_SINGLE("DAC2 Deemphasis Switch", WM8580_DAC_CONTROL3, 1, 1, 0),
SOC_SINGLE("DAC3 Deemphasis Switch", WM8580_DAC_CONTROL3, 2, 1, 0),
SOC_DOUBLE("DAC1 Invert Switch", WM8580_DAC_CONTROL4, 0, 1, 1, 0),
SOC_DOUBLE("DAC2 Invert Switch", WM8580_DAC_CONTROL4, 2, 3, 1, 0),
SOC_DOUBLE("DAC3 Invert Switch", WM8580_DAC_CONTROL4, 4, 5, 1, 0),
SOC_SINGLE("DAC ZC Switch", WM8580_DAC_CONTROL5, 5, 1, 0),
SOC_SINGLE("DAC1 Switch", WM8580_DAC_CONTROL5, 0, 1, 1),
SOC_SINGLE("DAC2 Switch", WM8580_DAC_CONTROL5, 1, 1, 1),
SOC_SINGLE("DAC3 Switch", WM8580_DAC_CONTROL5, 2, 1, 1),
SOC_DOUBLE("Capture Switch", WM8580_ADC_CONTROL1, 0, 1, 1, 1),
SOC_SINGLE("Capture High-Pass Filter Switch", WM8580_ADC_CONTROL1, 4, 1, 0),
};
static const struct snd_kcontrol_new wm8581_snd_controls[] = {
SOC_DOUBLE_R_EXT_TLV("DAC4 Playback Volume",
WM8581_DIGITAL_ATTENUATION_DACL4,
WM8581_DIGITAL_ATTENUATION_DACR4,
0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
SOC_SINGLE("DAC4 Deemphasis Switch", WM8580_DAC_CONTROL3, 3, 1, 0),
SOC_DOUBLE("DAC4 Invert Switch", WM8580_DAC_CONTROL4, 8, 7, 1, 0),
SOC_SINGLE("DAC4 Switch", WM8580_DAC_CONTROL5, 3, 1, 1),
};
static const struct snd_soc_dapm_widget wm8580_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC1", "Playback", WM8580_PWRDN1, 2, 1),
SND_SOC_DAPM_DAC("DAC2", "Playback", WM8580_PWRDN1, 3, 1),
SND_SOC_DAPM_DAC("DAC3", "Playback", WM8580_PWRDN1, 4, 1),
SND_SOC_DAPM_OUTPUT("VOUT1L"),
SND_SOC_DAPM_OUTPUT("VOUT1R"),
SND_SOC_DAPM_OUTPUT("VOUT2L"),
SND_SOC_DAPM_OUTPUT("VOUT2R"),
SND_SOC_DAPM_OUTPUT("VOUT3L"),
SND_SOC_DAPM_OUTPUT("VOUT3R"),
SND_SOC_DAPM_ADC("ADC", "Capture", WM8580_PWRDN1, 1, 1),
SND_SOC_DAPM_INPUT("AINL"),
SND_SOC_DAPM_INPUT("AINR"),
};
static const struct snd_soc_dapm_widget wm8581_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC4", "Playback", WM8580_PWRDN1, 5, 1),
SND_SOC_DAPM_OUTPUT("VOUT4L"),
SND_SOC_DAPM_OUTPUT("VOUT4R"),
};
static const struct snd_soc_dapm_route wm8580_dapm_routes[] = {
{ "VOUT1L", NULL, "DAC1" },
{ "VOUT1R", NULL, "DAC1" },
{ "VOUT2L", NULL, "DAC2" },
{ "VOUT2R", NULL, "DAC2" },
{ "VOUT3L", NULL, "DAC3" },
{ "VOUT3R", NULL, "DAC3" },
{ "ADC", NULL, "AINL" },
{ "ADC", NULL, "AINR" },
};
static const struct snd_soc_dapm_route wm8581_dapm_routes[] = {
{ "VOUT4L", NULL, "DAC4" },
{ "VOUT4R", NULL, "DAC4" },
};
/* PLL divisors */
struct _pll_div {
u32 prescale:1;
u32 postscale:1;
u32 freqmode:2;
u32 n:4;
u32 k:24;
};
/* The size in bits of the pll divide */
#define FIXED_PLL_SIZE (1 << 22)
/* PLL rate to output rate divisions */
static struct {
unsigned int div;
unsigned int freqmode;
unsigned int postscale;
} post_table[] = {
{ 2, 0, 0 },
{ 4, 0, 1 },
{ 4, 1, 0 },
{ 8, 1, 1 },
{ 8, 2, 0 },
{ 16, 2, 1 },
{ 12, 3, 0 },
{ 24, 3, 1 }
};
static int pll_factors(struct _pll_div *pll_div, unsigned int target,
unsigned int source)
{
u64 Kpart;
unsigned int K, Ndiv, Nmod;
int i;
pr_debug("wm8580: PLL %uHz->%uHz\n", source, target);
/* Scale the output frequency up; the PLL should run in the
* region of 90-100MHz.
*/
for (i = 0; i < ARRAY_SIZE(post_table); i++) {
if (target * post_table[i].div >= 90000000 &&
target * post_table[i].div <= 100000000) {
pll_div->freqmode = post_table[i].freqmode;
pll_div->postscale = post_table[i].postscale;
target *= post_table[i].div;
break;
}
}
if (i == ARRAY_SIZE(post_table)) {
printk(KERN_ERR "wm8580: Unable to scale output frequency "
"%u\n", target);
return -EINVAL;
}
Ndiv = target / source;
if (Ndiv < 5) {
source /= 2;
pll_div->prescale = 1;
Ndiv = target / source;
} else
pll_div->prescale = 0;
if ((Ndiv < 5) || (Ndiv > 13)) {
printk(KERN_ERR
"WM8580 N=%u outside supported range\n", Ndiv);
return -EINVAL;
}
pll_div->n = Ndiv;
Nmod = target % source;
Kpart = FIXED_PLL_SIZE * (long long)Nmod;
do_div(Kpart, source);
K = Kpart & 0xFFFFFFFF;
pll_div->k = K;
pr_debug("PLL %x.%x prescale %d freqmode %d postscale %d\n",
pll_div->n, pll_div->k, pll_div->prescale, pll_div->freqmode,
pll_div->postscale);
return 0;
}
static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
int source, unsigned int freq_in, unsigned int freq_out)
{
int offset;
struct snd_soc_component *component = codec_dai->component;
struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
struct pll_state *state;
struct _pll_div pll_div;
unsigned int reg;
unsigned int pwr_mask;
int ret;
/* GCC isn't able to work out the ifs below for initialising/using
* pll_div so suppress warnings.
*/
memset(&pll_div, 0, sizeof(pll_div));
switch (pll_id) {
case WM8580_PLLA:
state = &wm8580->a;
offset = 0;
pwr_mask = WM8580_PWRDN2_PLLAPD;
break;
case WM8580_PLLB:
state = &wm8580->b;
offset = 4;
pwr_mask = WM8580_PWRDN2_PLLBPD;
break;
default:
return -ENODEV;
}
if (freq_in && freq_out) {
ret = pll_factors(&pll_div, freq_out, freq_in);
if (ret != 0)
return ret;
}
state->in = freq_in;
state->out = freq_out;
/* Always disable the PLL - it is not safe to leave it running
* while reprogramming it.
*/
snd_soc_component_update_bits(component, WM8580_PWRDN2, pwr_mask, pwr_mask);
if (!freq_in || !freq_out)
return 0;
snd_soc_component_write(component, WM8580_PLLA1 + offset, pll_div.k & 0x1ff);
snd_soc_component_write(component, WM8580_PLLA2 + offset, (pll_div.k >> 9) & 0x1ff);
snd_soc_component_write(component, WM8580_PLLA3 + offset,
(pll_div.k >> 18 & 0xf) | (pll_div.n << 4));
reg = snd_soc_component_read(component, WM8580_PLLA4 + offset);
reg &= ~0x1b;
reg |= pll_div.prescale | pll_div.postscale << 1 |
pll_div.freqmode << 3;
snd_soc_component_write(component, WM8580_PLLA4 + offset, reg);
/* All done, turn it on */
snd_soc_component_update_bits(component, WM8580_PWRDN2, pwr_mask, 0);
return 0;
}
static const int wm8580_sysclk_ratios[] = {
128, 192, 256, 384, 512, 768, 1152,
};
/*
* Set PCM DAI bit size and sample rate.
*/
static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
u16 paifa = 0;
u16 paifb = 0;
int i, ratio, osr;
/* bit size */
switch (params_width(params)) {
case 16:
paifa |= 0x8;
break;
case 20:
paifa |= 0x0;
paifb |= WM8580_AIF_LENGTH_20;
break;
case 24:
paifa |= 0x0;
paifb |= WM8580_AIF_LENGTH_24;
break;
case 32:
paifa |= 0x0;
paifb |= WM8580_AIF_LENGTH_32;
break;
default:
return -EINVAL;
}
/* Look up the SYSCLK ratio; accept only exact matches */
ratio = wm8580->sysclk[dai->driver->id] / params_rate(params);
for (i = 0; i < ARRAY_SIZE(wm8580_sysclk_ratios); i++)
if (ratio == wm8580_sysclk_ratios[i])
break;
if (i == ARRAY_SIZE(wm8580_sysclk_ratios)) {
dev_err(component->dev, "Invalid clock ratio %d/%d\n",
wm8580->sysclk[dai->driver->id], params_rate(params));
return -EINVAL;
}
paifa |= i;
dev_dbg(component->dev, "Running at %dfs with %dHz clock\n",
wm8580_sysclk_ratios[i], wm8580->sysclk[dai->driver->id]);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
switch (ratio) {
case 128:
case 192:
osr = WM8580_DACOSR;
dev_dbg(component->dev, "Selecting 64x OSR\n");
break;
default:
osr = 0;
dev_dbg(component->dev, "Selecting 128x OSR\n");
break;
}
snd_soc_component_update_bits(component, WM8580_PAIF3, WM8580_DACOSR, osr);
}
snd_soc_component_update_bits(component, WM8580_PAIF1 + dai->driver->id,
WM8580_AIF_RATE_MASK | WM8580_AIF_BCLKSEL_MASK,
paifa);
snd_soc_component_update_bits(component, WM8580_PAIF3 + dai->driver->id,
WM8580_AIF_LENGTH_MASK, paifb);
return 0;
}
static int wm8580_set_paif_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
struct snd_soc_component *component = codec_dai->component;
unsigned int aifa;
unsigned int aifb;
int can_invert_lrclk;
aifa = snd_soc_component_read(component, WM8580_PAIF1 + codec_dai->driver->id);
aifb = snd_soc_component_read(component, WM8580_PAIF3 + codec_dai->driver->id);
aifb &= ~(WM8580_AIF_FMT_MASK | WM8580_AIF_LRP | WM8580_AIF_BCP);
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
aifa &= ~WM8580_AIF_MS;
break;
case SND_SOC_DAIFMT_CBM_CFM:
aifa |= WM8580_AIF_MS;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
can_invert_lrclk = 1;
aifb |= WM8580_AIF_FMT_I2S;
break;
case SND_SOC_DAIFMT_RIGHT_J:
can_invert_lrclk = 1;
aifb |= WM8580_AIF_FMT_RIGHTJ;
break;
case SND_SOC_DAIFMT_LEFT_J:
can_invert_lrclk = 1;
aifb |= WM8580_AIF_FMT_LEFTJ;
break;
case SND_SOC_DAIFMT_DSP_A:
can_invert_lrclk = 0;
aifb |= WM8580_AIF_FMT_DSP;
break;
case SND_SOC_DAIFMT_DSP_B:
can_invert_lrclk = 0;
aifb |= WM8580_AIF_FMT_DSP;
aifb |= WM8580_AIF_LRP;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_IB_IF:
if (!can_invert_lrclk)
return -EINVAL;
aifb |= WM8580_AIF_BCP;
aifb |= WM8580_AIF_LRP;
break;
case SND_SOC_DAIFMT_IB_NF:
aifb |= WM8580_AIF_BCP;
break;
case SND_SOC_DAIFMT_NB_IF:
if (!can_invert_lrclk)
return -EINVAL;
aifb |= WM8580_AIF_LRP;
break;
default:
return -EINVAL;
}
snd_soc_component_write(component, WM8580_PAIF1 + codec_dai->driver->id, aifa);
snd_soc_component_write(component, WM8580_PAIF3 + codec_dai->driver->id, aifb);
return 0;
}
static int wm8580_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
int div_id, int div)
{
struct snd_soc_component *component = codec_dai->component;
unsigned int reg;
switch (div_id) {
case WM8580_MCLK:
reg = snd_soc_component_read(component, WM8580_PLLB4);
reg &= ~WM8580_PLLB4_MCLKOUTSRC_MASK;
switch (div) {
case WM8580_CLKSRC_MCLK:
/* Input */
break;
case WM8580_CLKSRC_PLLA:
reg |= WM8580_PLLB4_MCLKOUTSRC_PLLA;
break;
case WM8580_CLKSRC_PLLB:
reg |= WM8580_PLLB4_MCLKOUTSRC_PLLB;
break;
case WM8580_CLKSRC_OSC:
reg |= WM8580_PLLB4_MCLKOUTSRC_OSC;
break;
default:
return -EINVAL;
}
snd_soc_component_write(component, WM8580_PLLB4, reg);
break;
case WM8580_CLKOUTSRC:
reg = snd_soc_component_read(component, WM8580_PLLB4);
reg &= ~WM8580_PLLB4_CLKOUTSRC_MASK;
switch (div) {
case WM8580_CLKSRC_NONE:
break;
case WM8580_CLKSRC_PLLA:
reg |= WM8580_PLLB4_CLKOUTSRC_PLLACLK;
break;
case WM8580_CLKSRC_PLLB:
reg |= WM8580_PLLB4_CLKOUTSRC_PLLBCLK;
break;
case WM8580_CLKSRC_OSC:
reg |= WM8580_PLLB4_CLKOUTSRC_OSCCLK;
break;
default:
return -EINVAL;
}
snd_soc_component_write(component, WM8580_PLLB4, reg);
break;
default:
return -EINVAL;
}
return 0;
}
static int wm8580_set_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
struct snd_soc_component *component = dai->component;
struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
int ret, sel, sel_mask, sel_shift;
switch (dai->driver->id) {
case WM8580_DAI_PAIFRX:
sel_mask = 0x3;
sel_shift = 0;
break;
case WM8580_DAI_PAIFTX:
sel_mask = 0xc;
sel_shift = 2;
break;
default:
WARN(1, "Unknown DAI driver ID\n");
return -EINVAL;
}
switch (clk_id) {
case WM8580_CLKSRC_ADCMCLK:
if (dai->driver->id != WM8580_DAI_PAIFTX)
return -EINVAL;
sel = 0 << sel_shift;
break;
case WM8580_CLKSRC_PLLA:
sel = 1 << sel_shift;
break;
case WM8580_CLKSRC_PLLB:
sel = 2 << sel_shift;
break;
case WM8580_CLKSRC_MCLK:
sel = 3 << sel_shift;
break;
default:
dev_err(component->dev, "Unknown clock %d\n", clk_id);
return -EINVAL;
}
/* We really should validate PLL settings but not yet */
wm8580->sysclk[dai->driver->id] = freq;
ret = snd_soc_component_update_bits(component, WM8580_CLKSEL, sel_mask, sel);
if (ret < 0)
return ret;
return 0;
}
static int wm8580_mute(struct snd_soc_dai *codec_dai, int mute, int direction)
{
struct snd_soc_component *component = codec_dai->component;
unsigned int reg;
reg = snd_soc_component_read(component, WM8580_DAC_CONTROL5);
if (mute)
reg |= WM8580_DAC_CONTROL5_MUTEALL;
else
reg &= ~WM8580_DAC_CONTROL5_MUTEALL;
snd_soc_component_write(component, WM8580_DAC_CONTROL5, reg);
return 0;
}
static int wm8580_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
/* Power up and get individual control of the DACs */
snd_soc_component_update_bits(component, WM8580_PWRDN1,
WM8580_PWRDN1_PWDN |
WM8580_PWRDN1_ALLDACPD, 0);
/* Make VMID high impedance */
snd_soc_component_update_bits(component, WM8580_ADC_CONTROL1,
0x100, 0);
}
break;
case SND_SOC_BIAS_OFF:
snd_soc_component_update_bits(component, WM8580_PWRDN1,
WM8580_PWRDN1_PWDN, WM8580_PWRDN1_PWDN);
break;
}
return 0;
}
static int wm8580_playback_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
return snd_pcm_hw_constraint_minmax(substream->runtime,
SNDRV_PCM_HW_PARAM_CHANNELS, 1, wm8580->drvdata->num_dacs * 2);
}
#define WM8580_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
static const struct snd_soc_dai_ops wm8580_dai_ops_playback = {
.startup = wm8580_playback_startup,
.set_sysclk = wm8580_set_sysclk,
.hw_params = wm8580_paif_hw_params,
.set_fmt = wm8580_set_paif_dai_fmt,
.set_clkdiv = wm8580_set_dai_clkdiv,
.set_pll = wm8580_set_dai_pll,
.mute_stream = wm8580_mute,
.no_capture_mute = 1,
};
static const struct snd_soc_dai_ops wm8580_dai_ops_capture = {
.set_sysclk = wm8580_set_sysclk,
.hw_params = wm8580_paif_hw_params,
.set_fmt = wm8580_set_paif_dai_fmt,
.set_clkdiv = wm8580_set_dai_clkdiv,
.set_pll = wm8580_set_dai_pll,
};
static struct snd_soc_dai_driver wm8580_dai[] = {
{
.name = "wm8580-hifi-playback",
.id = WM8580_DAI_PAIFRX,
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = WM8580_FORMATS,
},
.ops = &wm8580_dai_ops_playback,
},
{
.name = "wm8580-hifi-capture",
.id = WM8580_DAI_PAIFTX,
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = WM8580_FORMATS,
},
.ops = &wm8580_dai_ops_capture,
},
};
static int wm8580_probe(struct snd_soc_component *component)
{
struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
int ret = 0;
switch (wm8580->drvdata->num_dacs) {
case 4:
snd_soc_add_component_controls(component, wm8581_snd_controls,
ARRAY_SIZE(wm8581_snd_controls));
snd_soc_dapm_new_controls(dapm, wm8581_dapm_widgets,
ARRAY_SIZE(wm8581_dapm_widgets));
snd_soc_dapm_add_routes(dapm, wm8581_dapm_routes,
ARRAY_SIZE(wm8581_dapm_routes));
break;
default:
break;
}
ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies),
wm8580->supplies);
if (ret != 0) {
dev_err(component->dev, "Failed to enable supplies: %d\n", ret);
goto err_regulator_get;
}
/* Get the codec into a known state */
ret = snd_soc_component_write(component, WM8580_RESET, 0);
if (ret != 0) {
dev_err(component->dev, "Failed to reset component: %d\n", ret);
goto err_regulator_enable;
}
return 0;
err_regulator_enable:
regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
err_regulator_get:
return ret;
}
/* power down chip */
static void wm8580_remove(struct snd_soc_component *component)
{
struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
}
static const struct snd_soc_component_driver soc_component_dev_wm8580 = {
.probe = wm8580_probe,
.remove = wm8580_remove,
.set_bias_level = wm8580_set_bias_level,
.controls = wm8580_snd_controls,
.num_controls = ARRAY_SIZE(wm8580_snd_controls),
.dapm_widgets = wm8580_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm8580_dapm_widgets),
.dapm_routes = wm8580_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(wm8580_dapm_routes),
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
.non_legacy_dai_naming = 1,
};
static const struct regmap_config wm8580_regmap = {
.reg_bits = 7,
.val_bits = 9,
.max_register = WM8580_MAX_REGISTER,
.reg_defaults = wm8580_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm8580_reg_defaults),
.cache_type = REGCACHE_RBTREE,
.volatile_reg = wm8580_volatile,
};
static const struct wm8580_driver_data wm8580_data = {
.num_dacs = 3,
};
static const struct wm8580_driver_data wm8581_data = {
.num_dacs = 4,
};
static const struct of_device_id wm8580_of_match[] = {
{ .compatible = "wlf,wm8580", .data = &wm8580_data },
{ .compatible = "wlf,wm8581", .data = &wm8581_data },
{ },
};
MODULE_DEVICE_TABLE(of, wm8580_of_match);
static int wm8580_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)