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
|
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//
/* Mixer Controls */
#include <linux/pm_runtime.h>
#include <linux/leds.h>
#include "sof-priv.h"
#include "sof-audio.h"
static void update_mute_led(struct snd_sof_control *scontrol,
struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int temp = 0;
int mask;
int i;
mask = 1U << snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
for (i = 0; i < scontrol->num_channels; i++) {
if (ucontrol->value.integer.value[i]) {
temp |= mask;
break;
}
}
if (temp == scontrol->led_ctl.led_value)
return;
scontrol->led_ctl.led_value = temp;
#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
if (!scontrol->led_ctl.direction)
ledtrig_audio_set(LED_AUDIO_MUTE, temp ? LED_OFF : LED_ON);
else
ledtrig_audio_set(LED_AUDIO_MICMUTE, temp ? LED_OFF : LED_ON);
#endif
}
static inline u32 mixer_to_ipc(unsigned int value, u32 *volume_map, int size)
{
if (value >= size)
return volume_map[size - 1];
return volume_map[value];
}
static inline u32 ipc_to_mixer(u32 value, u32 *volume_map, int size)
{
int i;
for (i = 0; i < size; i++) {
if (volume_map[i] >= value)
return i;
}
return i - 1;
}
static void snd_sof_refresh_control(struct snd_sof_control *scontrol)
{
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct snd_soc_component *scomp = scontrol->scomp;
enum sof_ipc_ctrl_type ctrl_type;
int ret;
if (!scontrol->comp_data_dirty)
return;
if (!pm_runtime_active(scomp->dev))
return;
if (scontrol->cmd == SOF_CTRL_CMD_BINARY)
ctrl_type = SOF_IPC_COMP_GET_DATA;
else
ctrl_type = SOF_IPC_COMP_GET_VALUE;
/* set the ABI header values */
cdata->data->magic = SOF_ABI_MAGIC;
cdata->data->abi = SOF_ABI_VERSION;
/* refresh the component data from DSP */
scontrol->comp_data_dirty = false;
ret = snd_sof_ipc_set_get_comp_data(scontrol, ctrl_type,
SOF_CTRL_TYPE_VALUE_CHAN_GET,
scontrol->cmd, false);
if (ret < 0) {
dev_err(scomp->dev, "error: failed to get control data: %d\n", ret);
/* Set the flag to re-try next time to get the data */
scontrol->comp_data_dirty = true;
}
}
int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *sm =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
snd_sof_refresh_control(scontrol);
/* read back each channel */
for (i = 0; i < channels; i++)
ucontrol->value.integer.value[i] =
ipc_to_mixer(cdata->chanv[i].value,
scontrol->volume_table, sm->max + 1);
return 0;
}
int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *sm =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
bool change = false;
u32 value;
/* update each channel */
for (i = 0; i < channels; i++) {
value = mixer_to_ipc(ucontrol->value.integer.value[i],
scontrol->volume_table, sm->max + 1);
change = change || (value != cdata->chanv[i].value);
cdata->chanv[i].channel = i;
cdata->chanv[i].value = value;
}
/* notify DSP of mixer updates */
if (pm_runtime_active(scomp->dev))
snd_sof_ipc_set_get_comp_data(scontrol,
SOF_IPC_COMP_SET_VALUE,
SOF_CTRL_TYPE_VALUE_CHAN_SET,
SOF_CTRL_CMD_VOLUME,
true);
return change;
}
int snd_sof_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
struct soc_mixer_control *sm = (struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
unsigned int channels = scontrol->num_channels;
int platform_max;
if (!sm->platform_max)
sm->platform_max = sm->max;
platform_max = sm->platform_max;
if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
else
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = channels;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = platform_max - sm->min;
return 0;
}
int snd_sof_switch_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *sm =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
snd_sof_refresh_control(scontrol);
/* read back each channel */
for (i = 0; i < channels; i++)
ucontrol->value.integer.value[i] = cdata->chanv[i].value;
return 0;
}
int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *sm =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
bool change = false;
u32 value;
/* update each channel */
for (i = 0; i < channels; i++) {
value = ucontrol->value.integer.value[i];
change = change || (value != cdata->chanv[i].value);
cdata->chanv[i].channel = i;
cdata->chanv[i].value = value;
}
if (scontrol->led_ctl.use_led)
update_mute_led(scontrol, kcontrol, ucontrol);
/* notify DSP of mixer updates */
if (pm_runtime_active(scomp->dev))
snd_sof_ipc_set_get_comp_data(scontrol,
SOF_IPC_COMP_SET_VALUE,
SOF_CTRL_TYPE_VALUE_CHAN_SET,
SOF_CTRL_CMD_SWITCH,
true);
return change;
}
int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_enum *se =
(struct soc_enum *)kcontrol->private_value;
struct snd_sof_control *scontrol = se->dobj.private;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
snd_sof_refresh_control(scontrol);
/* read back each channel */
for (i = 0; i < channels; i++)
ucontrol->value.enumerated.item[i] = cdata->chanv[i].value;
return 0;
}
int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_enum *se =
(struct soc_enum *)kcontrol->private_value;
struct snd_sof_control *scontrol = se->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
bool change = false;
u32 value;
/* update each channel */
for (i = 0; i < channels; i++) {
value = ucontrol->value.enumerated.item[i];
change = change || (value != cdata->chanv[i].value);
cdata->chanv[i].channel = i;
cdata->chanv[i].value = value;
}
/* notify DSP of enum updates */
if (pm_runtime_active(scomp->dev))
snd_sof_ipc_set_get_comp_data(scontrol,
SOF_IPC_COMP_SET_VALUE,
SOF_CTRL_TYPE_VALUE_CHAN_SET,
SOF_CTRL_CMD_ENUM,
true);
return change;
}
int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *be =
(struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct sof_abi_hdr *data = cdata->data;
size_t size;
snd_sof_refresh_control(scontrol);
if (be->max > sizeof(ucontrol->value.bytes.data)) {
dev_err_ratelimited(scomp->dev,
"error: data max %d exceeds ucontrol data array size\n",
be->max);
return -EINVAL;
}
/* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
if (data->size > be->max - sizeof(*data)) {
dev_err_ratelimited(scomp->dev,
"error: %u bytes of control data is invalid, max is %zu\n",
data->size, be->max - sizeof(*data));
return -EINVAL;
}
size = data->size + sizeof(*data);
/* copy back to kcontrol */
memcpy(ucontrol->value.bytes.data, data, size);
return 0;
}
int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *be =
(struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct sof_abi_hdr *data = cdata->data;
size_t size;
if (be->max > sizeof(ucontrol->value.bytes.data)) {
dev_err_ratelimited(scomp->dev,
"error: data max %d exceeds ucontrol data array size\n",
be->max);
return -EINVAL;
}
/* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
if (data->size > be->max - sizeof(*data)) {
dev_err_ratelimited(scomp->dev,
"error: data size too big %u bytes max is %zu\n",
data->size, be->max - sizeof(*data));
return -EINVAL;
}
size = data->size + sizeof(*data);
/* copy from kcontrol */
memcpy(data, ucontrol->value.bytes.data, size);
/* notify DSP of byte control updates */
if (pm_runtime_active(scomp->dev))
snd_sof_ipc_set_get_comp_data(scontrol,
SOF_IPC_COMP_SET_DATA,
SOF_CTRL_TYPE_DATA_SET,
scontrol->cmd,
true);
return 0;
}
int snd_sof_bytes_ext_put(struct snd_kcontrol *kcontrol,
const unsigned int __user *binary_data,
unsigned int size)
{
struct soc_bytes_ext *be =
(struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct snd_ctl_tlv header;
const struct snd_ctl_tlv __user *tlvd =
(const struct snd_ctl_tlv __user *)binary_data;
/* make sure we have at least a header */
if (size < sizeof(struct snd_ctl_tlv))
return -EINVAL;
/*
* The beginning of bytes data contains a header from where
* the length (as bytes) is needed to know the correct copy
* length of data from tlvd->tlv.
*/
if (copy_from_user(&header, tlvd, sizeof(struct snd_ctl_tlv)))
return -EFAULT;
/* make sure TLV info is consistent */
if (header.length + sizeof(struct snd_ctl_tlv) > size) {
dev_err_ratelimited(scomp->dev, "error: inconsistent TLV, data %d + header %zu > %d\n",
header.length, sizeof(struct snd_ctl_tlv), size);
return -EINVAL;
}
/* be->max is coming from topology */
if (header.length > be->max) {
dev_err_ratelimited(scomp->dev, "error: Bytes data size %d exceeds max %d.\n",
header.length, be->max);
return -EINVAL;
}
/* Check that header id matches the command */
if (header.numid != scontrol->cmd) {
dev_err_ratelimited(scomp->dev,
"error: incorrect numid %d\n",
header.numid);
return -EINVAL;
}
if (copy_from_user(cdata->data, tlvd->tlv, header.length))
return -EFAULT;
if (cdata->data->magic != SOF_ABI_MAGIC) {
dev_err_ratelimited(scomp->dev,
"error: Wrong ABI magic 0x%08x.\n",
cdata->data->magic);
return -EINVAL;
}
if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, cdata->data->abi)) {
dev_err_ratelimited(scomp->dev, "error: Incompatible ABI version 0x%08x.\n",
cdata->data->abi);
return -EINVAL;
}
/* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
if (cdata->data->size > be->max - sizeof(struct sof_abi_hdr)) {
dev_err_ratelimited(scomp->dev, "error: Mismatch in ABI data size (truncated?).\n");
return -EINVAL;
}
/* notify DSP of byte control updates */
if (pm_runtime_active(scomp->dev))
snd_sof_ipc_set_get_comp_data(scontrol,
SOF_IPC_COMP_SET_DATA,
SOF_CTRL_TYPE_DATA_SET,
scontrol->cmd,
true);
return 0;
}
int snd_sof_bytes_ext_volatile_get(struct snd_kcontrol *kcontrol, unsigned int __user *binary_data,
unsigned int size)
{
struct soc_bytes_ext *be = (struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct snd_ctl_tlv header;
struct snd_ctl_tlv __user *tlvd = (struct snd_ctl_tlv __user *)binary_data;
size_t data_size;
int ret;
int err;
/*
* Decrement the limit by ext bytes header size to
* ensure the user space buffer is not exceeded.
*/
if (size < sizeof(struct snd_ctl_tlv))
return -ENOSPC;
size -= sizeof(struct snd_ctl_tlv);
ret = pm_runtime_get_sync(scomp->dev);
if (ret < 0 && ret != -EACCES) {
dev_err_ratelimited(scomp->dev, "error: bytes_ext get failed to resume %d\n", ret);
pm_runtime_put_noidle(scomp->dev);
return ret;
}
/* set the ABI header values */
cdata->data->magic = SOF_ABI_MAGIC;
cdata->data->abi = SOF_ABI_VERSION;
/* get all the component data from DSP */
ret = snd_sof_ipc_set_get_comp_data(scontrol, SOF_IPC_COMP_GET_DATA, SOF_CTRL_TYPE_DATA_GET,
scontrol->cmd, false);
if (ret < 0)
goto out;
/* check data size doesn't exceed max coming from topology */
if (cdata->data->size > be->max - sizeof(struct sof_abi_hdr)) {
dev_err_ratelimited(scomp->dev, "error: user data size %d exceeds max size %zu.\n",
cdata->data->size,
be->max - sizeof(struct sof_abi_hdr));
ret = -EINVAL;
goto out;
}
data_size = cdata->data->size + sizeof(struct sof_abi_hdr);
/* make sure we don't exceed size provided by user space for data */
if (data_size > size) {
ret = -ENOSPC;
goto out;
}
header.numid = scontrol->cmd;
header.length = data_size;
if (copy_to_user(tlvd, &header, sizeof(struct snd_ctl_tlv))) {
ret = -EFAULT;
goto out;
}
if (copy_to_user(tlvd->tlv, cdata->data, data_size))
ret = -EFAULT;
out:
pm_runtime_mark_last_busy(scomp->dev);
err = pm_runtime_put_autosuspend(scomp->dev);
if (err < 0)
dev_err_ratelimited(scomp->dev, "error: bytes_ext get failed to idle %d\n", err);
return ret;
}
int snd_sof_bytes_ext_get(struct snd_kcontrol *kcontrol,
unsigned int __user *binary_data,
unsigned int size)
{
struct soc_bytes_ext *be =
(struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct snd_ctl_tlv header;
struct snd_ctl_tlv __user *tlvd =
(struct snd_ctl_tlv __user *)binary_data;
size_t data_size;
snd_sof_refresh_control(scontrol);
/*
* Decrement the limit by ext bytes header size to
* ensure the user space buffer is not exceeded.
*/
if (size < sizeof(struct snd_ctl_tlv))
return -ENOSPC;
size -= sizeof(struct snd_ctl_tlv);
/* set the ABI header values */
cdata->data->magic = SOF_ABI_MAGIC;
cdata->data->abi = SOF_ABI_VERSION;
/* check data size doesn't exceed max coming from topology */
if (cdata->data->size > be->max - sizeof(struct sof_abi_hdr)) {
dev_err_ratelimited(scomp->dev, "error: user data size %d exceeds max size %zu.\n",
cdata->data->size,
be->max - sizeof(struct sof_abi_hdr));
return -EINVAL;
}
data_size = cdata->data->size + sizeof(struct sof_abi_hdr);
/* make sure we don't exceed size provided by user space for data */
if (data_size > size)
return -ENOSPC;
header.numid = scontrol->cmd;
header.length = data_size;
if (copy_to_user(tlvd, &header, sizeof(struct snd_ctl_tlv)))
return -EFAULT;
if (copy_to_user(tlvd->tlv, cdata->data, data_size))
return -EFAULT;
return 0;
}
static void snd_sof_update_control(struct snd_sof_control *scontrol,
struct sof_ipc_ctrl_data *cdata)
{
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *local_cdata;
int i;
local_cdata = scontrol->control_data;
if (cdata->cmd == SOF_CTRL_CMD_BINARY) {
if (cdata->num_elems != local_cdata->data->size) {
dev_err(scomp->dev,
"error: cdata binary size mismatch %u - %u\n",
cdata->num_elems, local_cdata->data->size);
return;
}
/* copy the new binary data */
memcpy(local_cdata->data, cdata->data, cdata->num_elems);
} else if (cdata->num_elems != scontrol->num_channels) {
dev_err(scomp->dev,
"error: cdata channel count mismatch %u - %d\n",
cdata->num_elems, scontrol->num_channels);
} else {
/* copy the new values */
for (i = 0; i < cdata->num_elems; i++)
local_cdata->chanv[i].value = cdata->chanv[i].value;
}
}
void snd_sof_control_notify(struct snd_sof_dev *sdev,
struct sof_ipc_ctrl_data *cdata)
{
struct snd_soc_dapm_widget *widget;
struct snd_sof_control *scontrol;
struct snd_sof_widget *swidget;
struct snd_kcontrol *kc = NULL;
struct soc_mixer_control *sm;
struct soc_bytes_ext *be;
size_t expected_size;
struct soc_enum *se;
bool found = false;
int i, type;
/* Find the swidget first */
list_for_each_entry(swidget, &sdev->widget_list, list) {
if (swidget->comp_id == cdata->comp_id) {
found = true;
break;
}
}
if (!found)
return;
/* Translate SOF cmd to TPLG type */
switch (cdata->cmd) {
case SOF_CTRL_CMD_VOLUME:
case SOF_CTRL_CMD_SWITCH:
type = SND_SOC_TPLG_TYPE_MIXER;
break;
case SOF_CTRL_CMD_BINARY:
type = SND_SOC_TPLG_TYPE_BYTES;
break;
case SOF_CTRL_CMD_ENUM:
type = SND_SOC_TPLG_TYPE_ENUM;
break;
default:
dev_err(sdev->dev, "error: unknown cmd %u\n", cdata->cmd);
return;
}
widget = swidget->widget;
for (i = 0; i < widget->num_kcontrols; i++) {
/* skip non matching types or non matching indexes within type */
if (widget->dobj.widget.kcontrol_type[i] == type &&
widget->kcontrol_news[i].index == cdata->index) {
kc = widget->kcontrols[i];
break;
}
}
if (!kc)
return;
switch (cdata->cmd) {
case SOF_CTRL_CMD_VOLUME:
case SOF_CTRL_CMD_SWITCH:
sm = (struct soc_mixer_control *)kc->private_value;
scontrol = sm->dobj.private;
break;
case SOF_CTRL_CMD_BINARY:
be = (struct soc_bytes_ext *)kc->private_value;
scontrol = be->dobj.private;
break;
case SOF_CTRL_CMD_ENUM:
se = (struct soc_enum *)kc->private_value;
scontrol = se->dobj.private;
break;
default:
return;
}
expected_size = sizeof(struct sof_ipc_ctrl_data);
switch (cdata->type) {
case SOF_CTRL_TYPE_VALUE_CHAN_GET:
case SOF_CTRL_TYPE_VALUE_CHAN_SET:
expected_size += cdata->num_elems *
sizeof(struct sof_ipc_ctrl_value_chan);
break;
case SOF_CTRL_TYPE_VALUE_COMP_GET:
case SOF_CTRL_TYPE_VALUE_COMP_SET:
expected_size += cdata->num_elems *
sizeof(struct sof_ipc_ctrl_value_comp);
break;
case SOF_CTRL_TYPE_DATA_GET:
case SOF_CTRL_TYPE_DATA_SET:
expected_size += cdata->num_elems + sizeof(struct sof_abi_hdr);
break;
default:
return;
}
if (cdata->rhdr.hdr.size != expected_size) {
dev_err(sdev->dev, "error: component notification size mismatch\n");
return;
}
if (cdata->num_elems)
/*
* The message includes the updated value/data, update the
* control's local cache using the received notification
*/
snd_sof_update_control(scontrol, cdata);
else
/* Mark the scontrol that the value/data is changed in SOF */
scontrol->comp_data_dirty = true;
snd_ctl_notify_one(swidget->scomp->card->snd_card,
SNDRV_CTL_EVENT_MASK_VALUE, kc, 0);
}
|