forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 17
/
mixer_us16x08.c
1424 lines (1241 loc) · 37.6 KB
/
mixer_us16x08.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
/*
* Tascam US-16x08 ALSA driver
*
* Copyright (c) 2016 by Detlef Urban ([email protected])
*
* 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.
*
* 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.
*
*/
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/usb/audio-v2.h>
#include <sound/core.h>
#include <sound/control.h>
#include "usbaudio.h"
#include "mixer.h"
#include "helper.h"
#include "mixer_us16x08.h"
/* USB control message templates */
static const char route_msg[] = {
0x61,
0x02,
0x03, /* input from master (0x02) or input from computer bus (0x03) */
0x62,
0x02,
0x01, /* input index (0x01/0x02 eq. left/right) or bus (0x01-0x08) */
0x41,
0x01,
0x61,
0x02,
0x01,
0x62,
0x02,
0x01, /* output index (0x01-0x08) */
0x42,
0x01,
0x43,
0x01,
0x00,
0x00
};
static const char mix_init_msg1[] = {
0x71, 0x01, 0x00, 0x00
};
static const char mix_init_msg2[] = {
0x62, 0x02, 0x00, 0x61, 0x02, 0x04, 0xb1, 0x01, 0x00, 0x00
};
static const char mix_msg_in[] = {
/* default message head, equal to all mixers */
0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
0x81, /* 0x06: Controller ID */
0x02, /* 0x07: */
0x00, /* 0x08: Value of common mixer */
0x00,
0x00
};
static const char mix_msg_out[] = {
/* default message head, equal to all mixers */
0x61, 0x02, 0x02, 0x62, 0x02, 0x01,
0x81, /* 0x06: Controller ID */
0x02, /* 0x07: */
0x00, /* 0x08: Value of common mixer */
0x00,
0x00
};
static const char bypass_msg_out[] = {
0x45,
0x02,
0x01, /* on/off flag */
0x00,
0x00
};
static const char bus_msg_out[] = {
0x44,
0x02,
0x01, /* on/off flag */
0x00,
0x00
};
static const char comp_msg[] = {
/* default message head, equal to all mixers */
0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
0x91,
0x02,
0xf0, /* 0x08: Threshold db (8) (e0 ... 00) (+-0dB -- -32dB) x-32 */
0x92,
0x02,
0x0a, /* 0x0b: Ratio (0a,0b,0d,0f,11,14,19,1e,23,28,32,3c,50,a0,ff) */
0x93,
0x02,
0x02, /* 0x0e: Attack (0x02 ... 0xc0) (2ms ... 200ms) */
0x94,
0x02,
0x01, /* 0x11: Release (0x01 ... 0x64) (10ms ... 1000ms) x*10 */
0x95,
0x02,
0x03, /* 0x14: gain (0 ... 20) (0dB .. 20dB) */
0x96,
0x02,
0x01,
0x97,
0x02,
0x01, /* 0x1a: main Comp switch (0 ... 1) (off ... on)) */
0x00,
0x00
};
static const char eqs_msq[] = {
/* default message head, equal to all mixers */
0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
0x51, /* 0x06: Controller ID */
0x02,
0x04, /* 0x08: EQ set num (0x01..0x04) (LOW, LOWMID, HIGHMID, HIGH)) */
0x52,
0x02,
0x0c, /* 0x0b: value dB (0 ... 12) (-12db .. +12db) x-6 */
0x53,
0x02,
0x0f, /* 0x0e: value freq (32-47) (1.7kHz..18kHz) */
0x54,
0x02,
0x02, /* 0x11: band width (0-6) (Q16-Q0.25) 2^x/4 (EQ xxMID only) */
0x55,
0x02,
0x01, /* 0x14: main EQ switch (0 ... 1) (off ... on)) */
0x00,
0x00
};
/* compressor ratio map */
static const char ratio_map[] = {
0x0a, 0x0b, 0x0d, 0x0f, 0x11, 0x14, 0x19, 0x1e,
0x23, 0x28, 0x32, 0x3c, 0x50, 0xa0, 0xff
};
/* route enumeration names */
static const char *const route_names[] = {
"Master Left", "Master Right", "Output 1", "Output 2", "Output 3",
"Output 4", "Output 5", "Output 6", "Output 7", "Output 8",
};
static int snd_us16x08_recv_urb(struct snd_usb_audio *chip,
unsigned char *buf, int size)
{
mutex_lock(&chip->mutex);
snd_usb_ctl_msg(chip->dev,
usb_rcvctrlpipe(chip->dev, 0),
SND_US16X08_URB_METER_REQUEST,
SND_US16X08_URB_METER_REQUESTTYPE, 0, 0, buf, size);
mutex_unlock(&chip->mutex);
return 0;
}
/* wrapper function to send prepared URB buffer to usb device. Return an error
* code if something went wrong
*/
static int snd_us16x08_send_urb(struct snd_usb_audio *chip, char *buf, int size)
{
return snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0),
SND_US16X08_URB_REQUEST, SND_US16X08_URB_REQUESTTYPE,
0, 0, buf, size);
}
static int snd_us16x08_route_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
return snd_ctl_enum_info(uinfo, 1, 10, route_names);
}
static int snd_us16x08_route_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
int index = ucontrol->id.index;
/* route has no bias */
ucontrol->value.enumerated.item[0] = elem->cache_val[index];
return 0;
}
static int snd_us16x08_route_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
int index = ucontrol->id.index;
char buf[sizeof(route_msg)];
int val, val_org, err;
/* get the new value (no bias for routes) */
val = ucontrol->value.enumerated.item[0];
/* sanity check */
if (val < 0 || val > 9)
return -EINVAL;
/* prepare the message buffer from template */
memcpy(buf, route_msg, sizeof(route_msg));
if (val < 2) {
/* input comes from a master channel */
val_org = val;
buf[2] = 0x02;
} else {
/* input comes from a computer channel */
buf[2] = 0x03;
val_org = val - 2;
}
/* place new route selection in URB message */
buf[5] = (unsigned char) (val_org & 0x0f) + 1;
/* place route selector in URB message */
buf[13] = index + 1;
err = snd_us16x08_send_urb(chip, buf, sizeof(route_msg));
if (err > 0) {
elem->cached |= 1 << index;
elem->cache_val[index] = val;
} else {
usb_audio_dbg(chip, "Failed to set routing, err:%d\n", err);
}
return err > 0 ? 1 : 0;
}
static int snd_us16x08_master_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->count = 1;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol);
uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol);
uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol);
return 0;
}
static int snd_us16x08_master_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
int index = ucontrol->id.index;
ucontrol->value.integer.value[0] = elem->cache_val[index];
return 0;
}
static int snd_us16x08_master_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
char buf[sizeof(mix_msg_out)];
int val, err;
int index = ucontrol->id.index;
/* new control value incl. bias*/
val = ucontrol->value.integer.value[0];
/* sanity check */
if (val < SND_US16X08_KCMIN(kcontrol)
|| val > SND_US16X08_KCMAX(kcontrol))
return -EINVAL;
/* prepare the message buffer from template */
memcpy(buf, mix_msg_out, sizeof(mix_msg_out));
buf[8] = val - SND_US16X08_KCBIAS(kcontrol);
buf[6] = elem->head.id;
/* place channel selector in URB message */
buf[5] = index + 1;
err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out));
if (err > 0) {
elem->cached |= 1 << index;
elem->cache_val[index] = val;
} else {
usb_audio_dbg(chip, "Failed to set master, err:%d\n", err);
}
return err > 0 ? 1 : 0;
}
static int snd_us16x08_bus_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
char buf[sizeof(mix_msg_out)];
int val, err = 0;
val = ucontrol->value.integer.value[0];
/* prepare the message buffer from template */
switch (elem->head.id) {
case SND_US16X08_ID_BYPASS:
memcpy(buf, bypass_msg_out, sizeof(bypass_msg_out));
buf[2] = val;
err = snd_us16x08_send_urb(chip, buf, sizeof(bypass_msg_out));
break;
case SND_US16X08_ID_BUSS_OUT:
memcpy(buf, bus_msg_out, sizeof(bus_msg_out));
buf[2] = val;
err = snd_us16x08_send_urb(chip, buf, sizeof(bus_msg_out));
break;
case SND_US16X08_ID_MUTE:
memcpy(buf, mix_msg_out, sizeof(mix_msg_out));
buf[8] = val;
buf[6] = elem->head.id;
buf[5] = 1;
err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out));
break;
}
if (err > 0) {
elem->cached |= 1;
elem->cache_val[0] = val;
} else {
usb_audio_dbg(chip, "Failed to set buss param, err:%d\n", err);
}
return err > 0 ? 1 : 0;
}
static int snd_us16x08_bus_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
switch (elem->head.id) {
case SND_US16X08_ID_BUSS_OUT:
ucontrol->value.integer.value[0] = elem->cache_val[0];
break;
case SND_US16X08_ID_BYPASS:
ucontrol->value.integer.value[0] = elem->cache_val[0];
break;
case SND_US16X08_ID_MUTE:
ucontrol->value.integer.value[0] = elem->cache_val[0];
break;
}
return 0;
}
/* gets a current mixer value from common store */
static int snd_us16x08_channel_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
int index = ucontrol->id.index;
ucontrol->value.integer.value[0] = elem->cache_val[index];
return 0;
}
static int snd_us16x08_channel_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
char buf[sizeof(mix_msg_in)];
int val, err;
int index = ucontrol->id.index;
val = ucontrol->value.integer.value[0];
/* sanity check */
if (val < SND_US16X08_KCMIN(kcontrol)
|| val > SND_US16X08_KCMAX(kcontrol))
return -EINVAL;
/* prepare URB message from template */
memcpy(buf, mix_msg_in, sizeof(mix_msg_in));
/* add the bias to the new value */
buf[8] = val - SND_US16X08_KCBIAS(kcontrol);
buf[6] = elem->head.id;
buf[5] = index + 1;
err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_in));
if (err > 0) {
elem->cached |= 1 << index;
elem->cache_val[index] = val;
} else {
usb_audio_dbg(chip, "Failed to set channel, err:%d\n", err);
}
return err > 0 ? 1 : 0;
}
static int snd_us16x08_mix_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->count = 1;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol);
uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol);
uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol);
return 0;
}
static int snd_us16x08_comp_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_us16x08_comp_store *store = elem->private_data;
int index = ucontrol->id.index;
int val_idx = COMP_STORE_IDX(elem->head.id);
ucontrol->value.integer.value[0] = store->val[val_idx][index];
return 0;
}
static int snd_us16x08_comp_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
struct snd_us16x08_comp_store *store = elem->private_data;
int index = ucontrol->id.index;
char buf[sizeof(comp_msg)];
int val_idx, val;
int err;
val = ucontrol->value.integer.value[0];
/* sanity check */
if (val < SND_US16X08_KCMIN(kcontrol)
|| val > SND_US16X08_KCMAX(kcontrol))
return -EINVAL;
/* new control value incl. bias*/
val_idx = elem->head.id - SND_US16X08_ID_COMP_BASE;
store->val[val_idx][index] = ucontrol->value.integer.value[0];
/* prepare compressor URB message from template */
memcpy(buf, comp_msg, sizeof(comp_msg));
/* place comp values in message buffer watch bias! */
buf[8] = store->val[
COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][index]
- SND_US16X08_COMP_THRESHOLD_BIAS;
buf[11] = ratio_map[store->val[
COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][index]];
buf[14] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][index]
+ SND_US16X08_COMP_ATTACK_BIAS;
buf[17] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][index]
+ SND_US16X08_COMP_RELEASE_BIAS;
buf[20] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][index];
buf[26] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][index];
/* place channel selector in message buffer */
buf[5] = index + 1;
err = snd_us16x08_send_urb(chip, buf, sizeof(comp_msg));
if (err > 0) {
elem->cached |= 1 << index;
elem->cache_val[index] = val;
} else {
usb_audio_dbg(chip, "Failed to set compressor, err:%d\n", err);
}
return 1;
}
static int snd_us16x08_eqswitch_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int val;
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_us16x08_eq_store *store = elem->private_data;
int index = ucontrol->id.index;
/* get low switch from cache is enough, cause all bands are together */
val = store->val[EQ_STORE_BAND_IDX(elem->head.id)]
[EQ_STORE_PARAM_IDX(elem->head.id)][index];
ucontrol->value.integer.value[0] = val;
return 0;
}
static int snd_us16x08_eqswitch_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
struct snd_us16x08_eq_store *store = elem->private_data;
int index = ucontrol->id.index;
char buf[sizeof(eqs_msq)];
int val, err = 0;
int b_idx;
/* new control value incl. bias*/
val = ucontrol->value.integer.value[0] + SND_US16X08_KCBIAS(kcontrol);
/* prepare URB message from EQ template */
memcpy(buf, eqs_msq, sizeof(eqs_msq));
/* place channel index in URB message */
buf[5] = index + 1;
for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) {
/* all four EQ bands have to be enabled/disabled in once */
buf[20] = val;
buf[17] = store->val[b_idx][2][index];
buf[14] = store->val[b_idx][1][index];
buf[11] = store->val[b_idx][0][index];
buf[8] = b_idx + 1;
err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq));
if (err < 0)
break;
store->val[b_idx][3][index] = val;
msleep(15);
}
if (err > 0) {
elem->cached |= 1 << index;
elem->cache_val[index] = val;
} else {
usb_audio_dbg(chip, "Failed to set eq switch, err:%d\n", err);
}
return 1;
}
static int snd_us16x08_eq_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int val;
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_us16x08_eq_store *store = elem->private_data;
int index = ucontrol->id.index;
int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1;
int p_idx = EQ_STORE_PARAM_IDX(elem->head.id);
val = store->val[b_idx][p_idx][index];
ucontrol->value.integer.value[0] = val;
return 0;
}
static int snd_us16x08_eq_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
struct snd_us16x08_eq_store *store = elem->private_data;
int index = ucontrol->id.index;
char buf[sizeof(eqs_msq)];
int val, err;
int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1;
int p_idx = EQ_STORE_PARAM_IDX(elem->head.id);
val = ucontrol->value.integer.value[0];
/* sanity check */
if (val < SND_US16X08_KCMIN(kcontrol)
|| val > SND_US16X08_KCMAX(kcontrol))
return -EINVAL;
/* copy URB buffer from EQ template */
memcpy(buf, eqs_msq, sizeof(eqs_msq));
store->val[b_idx][p_idx][index] = val;
buf[20] = store->val[b_idx][3][index];
buf[17] = store->val[b_idx][2][index];
buf[14] = store->val[b_idx][1][index];
buf[11] = store->val[b_idx][0][index];
/* place channel index in URB buffer */
buf[5] = index + 1;
/* place EQ band in URB buffer */
buf[8] = b_idx + 1;
err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq));
if (err > 0) {
/* store new value in EQ band cache */
elem->cached |= 1 << index;
elem->cache_val[index] = val;
} else {
usb_audio_dbg(chip, "Failed to set eq param, err:%d\n", err);
}
return 1;
}
static int snd_us16x08_meter_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->count = 1;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->value.integer.max = 0x7FFF;
uinfo->value.integer.min = 0;
return 0;
}
/* calculate compressor index for reduction level request */
static int snd_get_meter_comp_index(struct snd_us16x08_meter_store *store)
{
int ret;
/* any channel active */
if (store->comp_active_index) {
/* check for stereo link */
if (store->comp_active_index & 0x20) {
/* reset comp_index to left channel*/
if (store->comp_index -
store->comp_active_index > 1)
store->comp_index =
store->comp_active_index;
ret = store->comp_index++ & 0x1F;
} else {
/* no stereo link */
ret = store->comp_active_index;
}
} else {
/* skip channels with no compressor active */
while (!store->comp_store->val[
COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)]
[store->comp_index - 1]
&& store->comp_index <= SND_US16X08_MAX_CHANNELS) {
store->comp_index++;
}
ret = store->comp_index++;
if (store->comp_index > SND_US16X08_MAX_CHANNELS)
store->comp_index = 1;
}
return ret;
}
/* retrieve the meter level values from URB message */
static void get_meter_levels_from_urb(int s,
struct snd_us16x08_meter_store *store,
u8 *meter_urb)
{
int val = MUC2(meter_urb, s) + (MUC3(meter_urb, s) << 8);
if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 &&
MUA2(meter_urb, s) == 0x04 && MUB0(meter_urb, s) == 0x62) {
if (MUC0(meter_urb, s) == 0x72)
store->meter_level[MUB2(meter_urb, s) - 1] = val;
if (MUC0(meter_urb, s) == 0xb2)
store->comp_level[MUB2(meter_urb, s) - 1] = val;
}
if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 &&
MUA2(meter_urb, s) == 0x02 && MUB0(meter_urb, s) == 0x62)
store->master_level[MUB2(meter_urb, s) - 1] = val;
}
/* Function to retrieve current meter values from the device.
*
* The device needs to be polled for meter values with an initial
* requests. It will return with a sequence of different meter value
* packages. The first request (case 0:) initiate this meter response sequence.
* After the third response, an additional request can be placed,
* to retrieve compressor reduction level value for given channel. This round
* trip channel selector will skip all inactive compressors.
* A mixer can interrupt this round-trip by selecting one ore two (stereo-link)
* specific channels.
*/
static int snd_us16x08_meter_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int i, set;
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
struct snd_us16x08_meter_store *store = elem->private_data;
u8 meter_urb[64];
switch (kcontrol->private_value) {
case 0: {
char tmp[sizeof(mix_init_msg1)];
memcpy(tmp, mix_init_msg1, sizeof(mix_init_msg1));
snd_us16x08_send_urb(chip, tmp, 4);
snd_us16x08_recv_urb(chip, meter_urb,
sizeof(meter_urb));
kcontrol->private_value++;
break;
}
case 1:
snd_us16x08_recv_urb(chip, meter_urb,
sizeof(meter_urb));
kcontrol->private_value++;
break;
case 2:
snd_us16x08_recv_urb(chip, meter_urb,
sizeof(meter_urb));
kcontrol->private_value++;
break;
case 3: {
char tmp[sizeof(mix_init_msg2)];
memcpy(tmp, mix_init_msg2, sizeof(mix_init_msg2));
tmp[2] = snd_get_meter_comp_index(store);
snd_us16x08_send_urb(chip, tmp, 10);
snd_us16x08_recv_urb(chip, meter_urb,
sizeof(meter_urb));
kcontrol->private_value = 0;
break;
}
}
for (set = 0; set < 6; set++)
get_meter_levels_from_urb(set, store, meter_urb);
for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
ucontrol->value.integer.value[i] =
store ? store->meter_level[i] : 0;
}
ucontrol->value.integer.value[i++] = store ? store->master_level[0] : 0;
ucontrol->value.integer.value[i++] = store ? store->master_level[1] : 0;
for (i = 2; i < SND_US16X08_MAX_CHANNELS + 2; i++)
ucontrol->value.integer.value[i + SND_US16X08_MAX_CHANNELS] =
store ? store->comp_level[i - 2] : 0;
return 1;
}
static int snd_us16x08_meter_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_us16x08_meter_store *store = elem->private_data;
int val;
val = ucontrol->value.integer.value[0];
/* sanity check */
if (val < 0 || val >= SND_US16X08_MAX_CHANNELS)
return -EINVAL;
store->comp_active_index = val;
store->comp_index = val;
return 1;
}
static struct snd_kcontrol_new snd_us16x08_ch_boolean_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_switch_info,
.get = snd_us16x08_channel_get,
.put = snd_us16x08_channel_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
};
static struct snd_kcontrol_new snd_us16x08_ch_int_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_channel_get,
.put = snd_us16x08_channel_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
};
static struct snd_kcontrol_new snd_us16x08_pan_int_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_channel_get,
.put = snd_us16x08_channel_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 255)
};
static struct snd_kcontrol_new snd_us16x08_master_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 1,
.info = snd_us16x08_master_info,
.get = snd_us16x08_master_get,
.put = snd_us16x08_master_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
};
static struct snd_kcontrol_new snd_us16x08_route_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 8,
.info = snd_us16x08_route_info,
.get = snd_us16x08_route_get,
.put = snd_us16x08_route_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 9)
};
static struct snd_kcontrol_new snd_us16x08_bus_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 1,
.info = snd_us16x08_switch_info,
.get = snd_us16x08_bus_get,
.put = snd_us16x08_bus_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
};
static struct snd_kcontrol_new snd_us16x08_compswitch_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_switch_info,
.get = snd_us16x08_comp_get,
.put = snd_us16x08_comp_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
};
static struct snd_kcontrol_new snd_us16x08_comp_threshold_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_comp_get,
.put = snd_us16x08_comp_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_COMP_THRESHOLD_BIAS, 1,
0, 0x20)
};
static struct snd_kcontrol_new snd_us16x08_comp_ratio_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_comp_get,
.put = snd_us16x08_comp_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0,
sizeof(ratio_map) - 1), /*max*/
};
static struct snd_kcontrol_new snd_us16x08_comp_gain_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_comp_get,
.put = snd_us16x08_comp_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x14)
};
static struct snd_kcontrol_new snd_us16x08_comp_attack_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_comp_get,
.put = snd_us16x08_comp_put,
.private_value =
SND_US16X08_KCSET(SND_US16X08_COMP_ATTACK_BIAS, 1, 0, 0xc6),
};
static struct snd_kcontrol_new snd_us16x08_comp_release_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_comp_get,
.put = snd_us16x08_comp_put,
.private_value =
SND_US16X08_KCSET(SND_US16X08_COMP_RELEASE_BIAS, 1, 0, 0x63),
};
static struct snd_kcontrol_new snd_us16x08_eq_gain_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_eq_get,
.put = snd_us16x08_eq_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 24),
};
static struct snd_kcontrol_new snd_us16x08_eq_low_freq_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_eq_get,
.put = snd_us16x08_eq_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x1F),
};
static struct snd_kcontrol_new snd_us16x08_eq_mid_freq_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_eq_get,
.put = snd_us16x08_eq_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x3F)
};
static struct snd_kcontrol_new snd_us16x08_eq_mid_width_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_eq_get,
.put = snd_us16x08_eq_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x06)
};
static struct snd_kcontrol_new snd_us16x08_eq_high_freq_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_mix_info,
.get = snd_us16x08_eq_get,
.put = snd_us16x08_eq_put,
.private_value =
SND_US16X08_KCSET(SND_US16X08_EQ_HIGHFREQ_BIAS, 1, 0, 0x1F)
};
static struct snd_kcontrol_new snd_us16x08_eq_switch_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 16,
.info = snd_us16x08_switch_info,
.get = snd_us16x08_eqswitch_get,
.put = snd_us16x08_eqswitch_put,
.private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
};
static struct snd_kcontrol_new snd_us16x08_meter_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.count = 1,
.info = snd_us16x08_meter_info,
.get = snd_us16x08_meter_get,
.put = snd_us16x08_meter_put
};
/* control store preparation */
/* setup compressor store and assign default value */
static struct snd_us16x08_comp_store *snd_us16x08_create_comp_store(void)
{
int i;
struct snd_us16x08_comp_store *tmp;
tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
if (!tmp)
return NULL;
for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][i]
= 0x20;
tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][i] = 0x00;
tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][i] = 0x00;
tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][i] = 0x00;
tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][i] = 0x00;
tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][i] = 0x00;
}
return tmp;
}
/* setup EQ store and assign default values */
static struct snd_us16x08_eq_store *snd_us16x08_create_eq_store(void)
{
int i, b_idx;
struct snd_us16x08_eq_store *tmp;
tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
if (!tmp)
return NULL;