1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2022 Intel Corporation
7 //
8 //
9
10 #include "sof-priv.h"
11 #include "sof-audio.h"
12 #include "ipc4-priv.h"
13 #include "ipc4-topology.h"
14
15 static int sof_ipc4_set_get_kcontrol_data(struct snd_sof_control *scontrol,
16 bool set, bool lock)
17 {
18 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
19 struct snd_soc_component *scomp = scontrol->scomp;
20 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
21 const struct sof_ipc_ops *iops = sdev->ipc->ops;
22 struct sof_ipc4_msg *msg = &cdata->msg;
23 struct snd_sof_widget *swidget;
24 bool widget_found = false;
25 int ret = 0;
26
27 /* find widget associated with the control */
28 list_for_each_entry(swidget, &sdev->widget_list, list) {
29 if (swidget->comp_id == scontrol->comp_id) {
30 widget_found = true;
31 break;
32 }
33 }
34
35 if (!widget_found) {
36 dev_err(scomp->dev, "Failed to find widget for kcontrol %s\n", scontrol->name);
37 return -ENOENT;
38 }
39
40 if (lock)
41 mutex_lock(&swidget->setup_mutex);
42 else
43 lockdep_assert_held(&swidget->setup_mutex);
44
45 /*
46 * Volatile controls should always be part of static pipelines and the
47 * widget use_count would always be > 0 in this case. For the others,
48 * just return the cached value if the widget is not set up.
49 */
50 if (!swidget->use_count)
51 goto unlock;
52
53 msg->primary &= ~SOF_IPC4_MOD_INSTANCE_MASK;
54 msg->primary |= SOF_IPC4_MOD_INSTANCE(swidget->instance_id);
55
56 ret = iops->set_get_data(sdev, msg, msg->data_size, set);
57 if (!set)
58 goto unlock;
59
60 /* It is a set-data operation, and we have a valid backup that we can restore */
61 if (ret < 0) {
62 if (!scontrol->old_ipc_control_data)
63 goto unlock;
64 /*
65 * Current ipc_control_data is not valid, we use the last known good
66 * configuration
67 */
68 memcpy(scontrol->ipc_control_data, scontrol->old_ipc_control_data,
69 scontrol->max_size);
70 kfree(scontrol->old_ipc_control_data);
71 scontrol->old_ipc_control_data = NULL;
72 /* Send the last known good configuration to firmware */
73 ret = iops->set_get_data(sdev, msg, msg->data_size, set);
74 if (ret < 0)
75 goto unlock;
76 }
77
78 unlock:
79 if (lock)
80 mutex_unlock(&swidget->setup_mutex);
81
82 return ret;
83 }
84
85 static int
86 sof_ipc4_set_volume_data(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget,
87 struct snd_sof_control *scontrol, bool lock)
88 {
89 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
90 struct sof_ipc4_gain *gain = swidget->private;
91 struct sof_ipc4_msg *msg = &cdata->msg;
92 struct sof_ipc4_gain_params params;
93 bool all_channels_equal = true;
94 u32 value;
95 int ret, i;
96
97 /* check if all channel values are equal */
98 value = cdata->chanv[0].value;
99 for (i = 1; i < scontrol->num_channels; i++) {
100 if (cdata->chanv[i].value != value) {
101 all_channels_equal = false;
102 break;
103 }
104 }
105
106 /*
107 * notify DSP with a single IPC message if all channel values are equal. Otherwise send
108 * a separate IPC for each channel.
109 */
110 for (i = 0; i < scontrol->num_channels; i++) {
111 if (all_channels_equal) {
112 params.channels = SOF_IPC4_GAIN_ALL_CHANNELS_MASK;
113 params.init_val = cdata->chanv[0].value;
114 } else {
115 params.channels = cdata->chanv[i].channel;
116 params.init_val = cdata->chanv[i].value;
117 }
118
119 /* set curve type and duration from topology */
120 params.curve_duration_l = gain->data.params.curve_duration_l;
121 params.curve_duration_h = gain->data.params.curve_duration_h;
122 params.curve_type = gain->data.params.curve_type;
123
124 msg->data_ptr = ¶ms;
125 msg->data_size = sizeof(params);
126
127 ret = sof_ipc4_set_get_kcontrol_data(scontrol, true, lock);
128 msg->data_ptr = NULL;
129 msg->data_size = 0;
130 if (ret < 0) {
131 dev_err(sdev->dev, "Failed to set volume update for %s\n",
132 scontrol->name);
133 return ret;
134 }
135
136 if (all_channels_equal)
137 break;
138 }
139
140 return 0;
141 }
142
143 static bool sof_ipc4_volume_put(struct snd_sof_control *scontrol,
144 struct snd_ctl_elem_value *ucontrol)
145 {
146 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
147 struct snd_soc_component *scomp = scontrol->scomp;
148 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
149 unsigned int channels = scontrol->num_channels;
150 struct snd_sof_widget *swidget;
151 bool widget_found = false;
152 bool change = false;
153 unsigned int i;
154 int ret;
155
156 /* update each channel */
157 for (i = 0; i < channels; i++) {
158 u32 value = mixer_to_ipc(ucontrol->value.integer.value[i],
159 scontrol->volume_table, scontrol->max + 1);
160
161 change = change || (value != cdata->chanv[i].value);
162 cdata->chanv[i].channel = i;
163 cdata->chanv[i].value = value;
164 }
165
166 if (!pm_runtime_active(scomp->dev))
167 return change;
168
169 /* find widget associated with the control */
170 list_for_each_entry(swidget, &sdev->widget_list, list) {
171 if (swidget->comp_id == scontrol->comp_id) {
172 widget_found = true;
173 break;
174 }
175 }
176
177 if (!widget_found) {
178 dev_err(scomp->dev, "Failed to find widget for kcontrol %s\n", scontrol->name);
179 return false;
180 }
181
182 ret = sof_ipc4_set_volume_data(sdev, swidget, scontrol, true);
183 if (ret < 0)
184 return false;
185
186 return change;
187 }
188
189 static int sof_ipc4_volume_get(struct snd_sof_control *scontrol,
190 struct snd_ctl_elem_value *ucontrol)
191 {
192 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
193 unsigned int channels = scontrol->num_channels;
194 unsigned int i;
195
196 for (i = 0; i < channels; i++)
197 ucontrol->value.integer.value[i] = ipc_to_mixer(cdata->chanv[i].value,
198 scontrol->volume_table,
199 scontrol->max + 1);
200
201 return 0;
202 }
203
204 static int
205 sof_ipc4_set_generic_control_data(struct snd_sof_dev *sdev,
206 struct snd_sof_widget *swidget,
207 struct snd_sof_control *scontrol, bool lock)
208 {
209 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
210 struct sof_ipc4_control_msg_payload *data;
211 struct sof_ipc4_msg *msg = &cdata->msg;
212 size_t data_size;
213 unsigned int i;
214 int ret;
215
216 data_size = struct_size(data, chanv, scontrol->num_channels);
217 data = kzalloc(data_size, GFP_KERNEL);
218 if (!data)
219 return -ENOMEM;
220
221 data->id = cdata->index;
222 data->num_elems = scontrol->num_channels;
223 for (i = 0; i < scontrol->num_channels; i++) {
224 data->chanv[i].channel = cdata->chanv[i].channel;
225 data->chanv[i].value = cdata->chanv[i].value;
226 }
227
228 msg->data_ptr = data;
229 msg->data_size = data_size;
230
231 ret = sof_ipc4_set_get_kcontrol_data(scontrol, true, lock);
232 msg->data_ptr = NULL;
233 msg->data_size = 0;
234 if (ret < 0)
235 dev_err(sdev->dev, "Failed to set control update for %s\n",
236 scontrol->name);
237
238 kfree(data);
239
240 return ret;
241 }
242
243 static void sof_ipc4_refresh_generic_control(struct snd_sof_control *scontrol)
244 {
245 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
246 struct snd_soc_component *scomp = scontrol->scomp;
247 struct sof_ipc4_control_msg_payload *data;
248 struct sof_ipc4_msg *msg = &cdata->msg;
249 size_t data_size;
250 unsigned int i;
251 int ret;
252
253 if (!scontrol->comp_data_dirty)
254 return;
255
256 if (!pm_runtime_active(scomp->dev))
257 return;
258
259 data_size = struct_size(data, chanv, scontrol->num_channels);
260 data = kmalloc(data_size, GFP_KERNEL);
261 if (!data)
262 return;
263
264 data->id = cdata->index;
265 data->num_elems = scontrol->num_channels;
266 msg->data_ptr = data;
267 msg->data_size = data_size;
268
269 scontrol->comp_data_dirty = false;
270 ret = sof_ipc4_set_get_kcontrol_data(scontrol, false, true);
271 msg->data_ptr = NULL;
272 msg->data_size = 0;
273 if (!ret) {
274 for (i = 0; i < scontrol->num_channels; i++) {
275 cdata->chanv[i].channel = data->chanv[i].channel;
276 cdata->chanv[i].value = data->chanv[i].value;
277 }
278 } else {
279 dev_err(scomp->dev, "Failed to read control data for %s\n",
280 scontrol->name);
281 scontrol->comp_data_dirty = true;
282 }
283
284 kfree(data);
285 }
286
287 static bool sof_ipc4_switch_put(struct snd_sof_control *scontrol,
288 struct snd_ctl_elem_value *ucontrol)
289 {
290 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
291 struct snd_soc_component *scomp = scontrol->scomp;
292 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
293 struct snd_sof_widget *swidget;
294 bool widget_found = false;
295 bool change = false;
296 unsigned int i;
297 u32 value;
298 int ret;
299
300 /* update each channel */
301 for (i = 0; i < scontrol->num_channels; i++) {
302 value = ucontrol->value.integer.value[i];
303 change = change || (value != cdata->chanv[i].value);
304 cdata->chanv[i].channel = i;
305 cdata->chanv[i].value = value;
306 }
307
308 if (!pm_runtime_active(scomp->dev))
309 return change;
310
311 /* find widget associated with the control */
312 list_for_each_entry(swidget, &sdev->widget_list, list) {
313 if (swidget->comp_id == scontrol->comp_id) {
314 widget_found = true;
315 break;
316 }
317 }
318
319 if (!widget_found) {
320 dev_err(scomp->dev, "Failed to find widget for kcontrol %s\n", scontrol->name);
321 return false;
322 }
323
324 ret = sof_ipc4_set_generic_control_data(sdev, swidget, scontrol, true);
325 if (ret < 0)
326 return false;
327
328 return change;
329 }
330
331 static int sof_ipc4_switch_get(struct snd_sof_control *scontrol,
332 struct snd_ctl_elem_value *ucontrol)
333 {
334 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
335 unsigned int i;
336
337 sof_ipc4_refresh_generic_control(scontrol);
338
339 /* read back each channel */
340 for (i = 0; i < scontrol->num_channels; i++)
341 ucontrol->value.integer.value[i] = cdata->chanv[i].value;
342
343 return 0;
344 }
345
346 static bool sof_ipc4_enum_put(struct snd_sof_control *scontrol,
347 struct snd_ctl_elem_value *ucontrol)
348 {
349 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
350 struct snd_soc_component *scomp = scontrol->scomp;
351 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
352 struct snd_sof_widget *swidget;
353 bool widget_found = false;
354 bool change = false;
355 unsigned int i;
356 u32 value;
357 int ret;
358
359 /* update each channel */
360 for (i = 0; i < scontrol->num_channels; i++) {
361 value = ucontrol->value.enumerated.item[i];
362 change = change || (value != cdata->chanv[i].value);
363 cdata->chanv[i].channel = i;
364 cdata->chanv[i].value = value;
365 }
366
367 if (!pm_runtime_active(scomp->dev))
368 return change;
369
370 /* find widget associated with the control */
371 list_for_each_entry(swidget, &sdev->widget_list, list) {
372 if (swidget->comp_id == scontrol->comp_id) {
373 widget_found = true;
374 break;
375 }
376 }
377
378 if (!widget_found) {
379 dev_err(scomp->dev, "Failed to find widget for kcontrol %s\n", scontrol->name);
380 return false;
381 }
382
383 ret = sof_ipc4_set_generic_control_data(sdev, swidget, scontrol, true);
384 if (ret < 0)
385 return false;
386
387 return change;
388 }
389
390 static int sof_ipc4_enum_get(struct snd_sof_control *scontrol,
391 struct snd_ctl_elem_value *ucontrol)
392 {
393 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
394 unsigned int i;
395
396 sof_ipc4_refresh_generic_control(scontrol);
397
398 /* read back each channel */
399 for (i = 0; i < scontrol->num_channels; i++)
400 ucontrol->value.enumerated.item[i] = cdata->chanv[i].value;
401
402 return 0;
403 }
404
405 static int sof_ipc4_set_get_bytes_data(struct snd_sof_dev *sdev,
406 struct snd_sof_control *scontrol,
407 bool set, bool lock)
408 {
409 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
410 struct sof_abi_hdr *data = cdata->data;
411 struct sof_ipc4_msg *msg = &cdata->msg;
412 int ret = 0;
413
414 /* Send the new data to the firmware only if it is powered up */
415 if (set && !pm_runtime_active(sdev->dev))
416 return 0;
417
418 msg->extension = SOF_IPC4_MOD_EXT_MSG_PARAM_ID(data->type);
419
420 msg->data_ptr = data->data;
421 msg->data_size = data->size;
422
423 ret = sof_ipc4_set_get_kcontrol_data(scontrol, set, lock);
424 if (ret < 0)
425 dev_err(sdev->dev, "Failed to %s for %s\n",
426 set ? "set bytes update" : "get bytes",
427 scontrol->name);
428
429 msg->data_ptr = NULL;
430 msg->data_size = 0;
431
432 return ret;
433 }
434
435 static int sof_ipc4_bytes_put(struct snd_sof_control *scontrol,
436 struct snd_ctl_elem_value *ucontrol)
437 {
438 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
439 struct snd_soc_component *scomp = scontrol->scomp;
440 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
441 struct sof_abi_hdr *data = cdata->data;
442 size_t size;
443
444 if (scontrol->max_size > sizeof(ucontrol->value.bytes.data)) {
445 dev_err_ratelimited(scomp->dev,
446 "data max %zu exceeds ucontrol data array size\n",
447 scontrol->max_size);
448 return -EINVAL;
449 }
450
451 /* scontrol->max_size has been verified to be >= sizeof(struct sof_abi_hdr) */
452 if (data->size > scontrol->max_size - sizeof(*data)) {
453 dev_err_ratelimited(scomp->dev,
454 "data size too big %u bytes max is %zu\n",
455 data->size, scontrol->max_size - sizeof(*data));
456 return -EINVAL;
457 }
458
459 size = data->size + sizeof(*data);
460
461 /* copy from kcontrol */
462 memcpy(data, ucontrol->value.bytes.data, size);
463
464 sof_ipc4_set_get_bytes_data(sdev, scontrol, true, true);
465
466 return 0;
467 }
468
469 static int sof_ipc4_bytes_get(struct snd_sof_control *scontrol,
470 struct snd_ctl_elem_value *ucontrol)
471 {
472 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
473 struct snd_soc_component *scomp = scontrol->scomp;
474 struct sof_abi_hdr *data = cdata->data;
475 size_t size;
476
477 if (scontrol->max_size > sizeof(ucontrol->value.bytes.data)) {
478 dev_err_ratelimited(scomp->dev, "data max %zu exceeds ucontrol data array size\n",
479 scontrol->max_size);
480 return -EINVAL;
481 }
482
483 if (data->size > scontrol->max_size - sizeof(*data)) {
484 dev_err_ratelimited(scomp->dev,
485 "%u bytes of control data is invalid, max is %zu\n",
486 data->size, scontrol->max_size - sizeof(*data));
487 return -EINVAL;
488 }
489
490 size = data->size + sizeof(*data);
491
492 /* copy back to kcontrol */
493 memcpy(ucontrol->value.bytes.data, data, size);
494
495 return 0;
496 }
497
498 static int sof_ipc4_bytes_ext_put(struct snd_sof_control *scontrol,
499 const unsigned int __user *binary_data,
500 unsigned int size)
501 {
502 struct snd_ctl_tlv __user *tlvd = (struct snd_ctl_tlv __user *)binary_data;
503 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
504 struct snd_soc_component *scomp = scontrol->scomp;
505 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
506 struct sof_abi_hdr *data = cdata->data;
507 struct sof_abi_hdr abi_hdr;
508 struct snd_ctl_tlv header;
509
510 /*
511 * The beginning of bytes data contains a header from where
512 * the length (as bytes) is needed to know the correct copy
513 * length of data from tlvd->tlv.
514 */
515 if (copy_from_user(&header, tlvd, sizeof(struct snd_ctl_tlv)))
516 return -EFAULT;
517
518 /* make sure TLV info is consistent */
519 if (header.length + sizeof(struct snd_ctl_tlv) > size) {
520 dev_err_ratelimited(scomp->dev,
521 "Inconsistent TLV, data %d + header %zu > %d\n",
522 header.length, sizeof(struct snd_ctl_tlv), size);
523 return -EINVAL;
524 }
525
526 /* be->max is coming from topology */
527 if (header.length > scontrol->max_size) {
528 dev_err_ratelimited(scomp->dev,
529 "Bytes data size %d exceeds max %zu\n",
530 header.length, scontrol->max_size);
531 return -EINVAL;
532 }
533
534 /* Verify the ABI header first */
535 if (copy_from_user(&abi_hdr, tlvd->tlv, sizeof(abi_hdr)))
536 return -EFAULT;
537
538 if (abi_hdr.magic != SOF_IPC4_ABI_MAGIC) {
539 dev_err_ratelimited(scomp->dev, "Wrong ABI magic 0x%08x\n",
540 abi_hdr.magic);
541 return -EINVAL;
542 }
543
544 if (abi_hdr.size > scontrol->max_size - sizeof(abi_hdr)) {
545 dev_err_ratelimited(scomp->dev,
546 "%u bytes of control data is invalid, max is %zu\n",
547 abi_hdr.size, scontrol->max_size - sizeof(abi_hdr));
548 return -EINVAL;
549 }
550
551 if (!scontrol->old_ipc_control_data) {
552 /* Create a backup of the current, valid bytes control */
553 scontrol->old_ipc_control_data = kmemdup(scontrol->ipc_control_data,
554 scontrol->max_size, GFP_KERNEL);
555 if (!scontrol->old_ipc_control_data)
556 return -ENOMEM;
557 }
558
559 /* Copy the whole binary data which includes the ABI header and the payload */
560 if (copy_from_user(data, tlvd->tlv, header.length)) {
561 memcpy(scontrol->ipc_control_data, scontrol->old_ipc_control_data,
562 scontrol->max_size);
563 kfree(scontrol->old_ipc_control_data);
564 scontrol->old_ipc_control_data = NULL;
565 return -EFAULT;
566 }
567
568 return sof_ipc4_set_get_bytes_data(sdev, scontrol, true, true);
569 }
570
571 static int _sof_ipc4_bytes_ext_get(struct snd_sof_control *scontrol,
572 const unsigned int __user *binary_data,
573 unsigned int size, bool from_dsp)
574 {
575 struct snd_ctl_tlv __user *tlvd = (struct snd_ctl_tlv __user *)binary_data;
576 struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
577 struct snd_soc_component *scomp = scontrol->scomp;
578 struct sof_abi_hdr *data = cdata->data;
579 struct snd_ctl_tlv header;
580 size_t data_size;
581
582 /*
583 * Decrement the limit by ext bytes header size to ensure the user space
584 * buffer is not exceeded.
585 */
586 if (size < sizeof(struct snd_ctl_tlv))
587 return -ENOSPC;
588
589 size -= sizeof(struct snd_ctl_tlv);
590
591 /* get all the component data from DSP */
592 if (from_dsp) {
593 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
594 int ret = sof_ipc4_set_get_bytes_data(sdev, scontrol, false, true);
595
596 if (ret < 0)
597 return ret;
598
599 /* Set the ABI magic (if the control is not initialized) */
600 data->magic = SOF_IPC4_ABI_MAGIC;
601 }
602
603 if (data->size > scontrol->max_size - sizeof(*data)) {
604 dev_err_ratelimited(scomp->dev,
605 "%u bytes of control data is invalid, max is %zu\n",
606 data->size, scontrol->max_size - sizeof(*data));
607 return -EINVAL;
608 }
609
610 data_size = data->size + sizeof(struct sof_abi_hdr);
611
612 /* make sure we don't exceed size provided by user space for data */
613 if (data_size > size)
614 return -ENOSPC;
615
616 header.numid = scontrol->comp_id;
617 header.length = data_size;
618
619 if (copy_to_user(tlvd, &header, sizeof(struct snd_ctl_tlv)))
620 return -EFAULT;
621
622 if (copy_to_user(tlvd->tlv, data, data_size))
623 return -EFAULT;
624
625 return 0;
626 }
627
628 static int sof_ipc4_bytes_ext_get(struct snd_sof_control *scontrol,
629 const unsigned int __user *binary_data,
630 unsigned int size)
631 {
632 return _sof_ipc4_bytes_ext_get(scontrol, binary_data, size, false);
633 }
634
635 static int sof_ipc4_bytes_ext_volatile_get(struct snd_sof_control *scontrol,
636 const unsigned int __user *binary_data,
637 unsigned int size)
638 {
639 return _sof_ipc4_bytes_ext_get(scontrol, binary_data, size, true);
640 }
641
642 static int
643 sof_ipc4_volsw_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget,
644 struct snd_sof_control *scontrol)
645 {
646 if (scontrol->max == 1)
647 return sof_ipc4_set_generic_control_data(sdev, swidget, scontrol, false);
648
649 return sof_ipc4_set_volume_data(sdev, swidget, scontrol, false);
650 }
651
652 #define PARAM_ID_FROM_EXTENSION(_ext) (((_ext) & SOF_IPC4_MOD_EXT_MSG_PARAM_ID_MASK) \
653 >> SOF_IPC4_MOD_EXT_MSG_PARAM_ID_SHIFT)
654
655 static void sof_ipc4_control_update(struct snd_sof_dev *sdev, void *ipc_message)
656 {
657 struct sof_ipc4_msg *ipc4_msg = ipc_message;
658 struct sof_ipc4_notify_module_data *ndata = ipc4_msg->data_ptr;
659 struct sof_ipc4_control_msg_payload *msg_data;
660 struct sof_ipc4_control_data *cdata;
661 struct snd_soc_dapm_widget *widget;
662 struct snd_sof_control *scontrol;
663 struct snd_sof_widget *swidget;
664 struct snd_kcontrol *kc = NULL;
665 bool scontrol_found = false;
666 u32 event_param_id;
667 int i, type;
668
669 if (ndata->event_data_size < sizeof(*msg_data)) {
670 dev_err(sdev->dev,
671 "%s: Invalid event data size for module %u.%u: %u\n",
672 __func__, ndata->module_id, ndata->instance_id,
673 ndata->event_data_size);
674 return;
675 }
676
677 event_param_id = ndata->event_id & SOF_IPC4_NOTIFY_MODULE_EVENTID_ALSA_PARAMID_MASK;
678 switch (event_param_id) {
679 case SOF_IPC4_SWITCH_CONTROL_PARAM_ID:
680 type = SND_SOC_TPLG_TYPE_MIXER;
681 break;
682 case SOF_IPC4_ENUM_CONTROL_PARAM_ID:
683 type = SND_SOC_TPLG_TYPE_ENUM;
684 break;
685 default:
686 dev_err(sdev->dev,
687 "%s: Invalid control type for module %u.%u: %u\n",
688 __func__, ndata->module_id, ndata->instance_id,
689 event_param_id);
690 return;
691 }
692
693 /* Find the swidget based on ndata->module_id and ndata->instance_id */
694 swidget = sof_ipc4_find_swidget_by_ids(sdev, ndata->module_id,
695 ndata->instance_id);
696 if (!swidget) {
697 dev_err(sdev->dev, "%s: Failed to find widget for module %u.%u\n",
698 __func__, ndata->module_id, ndata->instance_id);
699 return;
700 }
701
702 /* Find the scontrol which is the source of the notification */
703 msg_data = (struct sof_ipc4_control_msg_payload *)ndata->event_data;
704 list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {
705 if (scontrol->comp_id == swidget->comp_id) {
706 u32 local_param_id;
707
708 cdata = scontrol->ipc_control_data;
709 /*
710 * The scontrol's param_id is stored in the IPC message
711 * template's extension
712 */
713 local_param_id = PARAM_ID_FROM_EXTENSION(cdata->msg.extension);
714 if (local_param_id == event_param_id &&
715 msg_data->id == cdata->index) {
716 scontrol_found = true;
717 break;
718 }
719 }
720 }
721
722 if (!scontrol_found) {
723 dev_err(sdev->dev,
724 "%s: Failed to find control on widget %s: %u:%u\n",
725 __func__, swidget->widget->name, ndata->event_id & 0xffff,
726 msg_data->id);
727 return;
728 }
729
730 if (msg_data->num_elems) {
731 /*
732 * The message includes the updated value/data, update the
733 * control's local cache using the received notification
734 */
735 for (i = 0; i < msg_data->num_elems; i++) {
736 u32 channel = msg_data->chanv[i].channel;
737
738 if (channel >= scontrol->num_channels) {
739 dev_warn(sdev->dev,
740 "Invalid channel index for %s: %u\n",
741 scontrol->name, i);
742
743 /*
744 * Mark the scontrol as dirty to force a refresh
745 * on next read
746 */
747 scontrol->comp_data_dirty = true;
748 break;
749 }
750
751 cdata->chanv[channel].value = msg_data->chanv[i].value;
752 }
753 } else {
754 /*
755 * Mark the scontrol as dirty because the value/data is changed
756 * in firmware, forcing a refresh on next read access
757 */
758 scontrol->comp_data_dirty = true;
759 }
760
761 /*
762 * Look up the ALSA kcontrol of the scontrol to be able to send a
763 * notification to user space
764 */
765 widget = swidget->widget;
766 for (i = 0; i < widget->num_kcontrols; i++) {
767 /* skip non matching types or non matching indexes within type */
768 if (widget->dobj.widget.kcontrol_type[i] == type &&
769 widget->kcontrol_news[i].index == cdata->index) {
770 kc = widget->kcontrols[i];
771 break;
772 }
773 }
774
775 if (!kc)
776 return;
777
778 snd_ctl_notify_one(swidget->scomp->card->snd_card,
779 SNDRV_CTL_EVENT_MASK_VALUE, kc, 0);
780 }
781
782 /* set up all controls for the widget */
783 static int sof_ipc4_widget_kcontrol_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
784 {
785 struct snd_sof_control *scontrol;
786 int ret = 0;
787
788 list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {
789 if (scontrol->comp_id == swidget->comp_id) {
790 switch (scontrol->info_type) {
791 case SND_SOC_TPLG_CTL_VOLSW:
792 case SND_SOC_TPLG_CTL_VOLSW_SX:
793 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
794 ret = sof_ipc4_volsw_setup(sdev, swidget, scontrol);
795 break;
796 case SND_SOC_TPLG_CTL_BYTES:
797 ret = sof_ipc4_set_get_bytes_data(sdev, scontrol,
798 true, false);
799 break;
800 case SND_SOC_TPLG_CTL_ENUM:
801 case SND_SOC_TPLG_CTL_ENUM_VALUE:
802 ret = sof_ipc4_set_generic_control_data(sdev, swidget,
803 scontrol, false);
804 break;
805 default:
806 break;
807 }
808
809 if (ret < 0) {
810 dev_err(sdev->dev,
811 "kcontrol %d set up failed for widget %s\n",
812 scontrol->comp_id, swidget->widget->name);
813 return ret;
814 }
815 }
816 }
817
818 return 0;
819 }
820
821 static int
822 sof_ipc4_set_up_volume_table(struct snd_sof_control *scontrol, int tlv[SOF_TLV_ITEMS], int size)
823 {
824 int i;
825
826 /* init the volume table */
827 scontrol->volume_table = kcalloc(size, sizeof(u32), GFP_KERNEL);
828 if (!scontrol->volume_table)
829 return -ENOMEM;
830
831 /* populate the volume table */
832 for (i = 0; i < size ; i++) {
833 u32 val = vol_compute_gain(i, tlv);
834 u64 q31val = ((u64)val) << 15; /* Can be over Q1.31, need to saturate */
835
836 scontrol->volume_table[i] = q31val > SOF_IPC4_VOL_ZERO_DB ?
837 SOF_IPC4_VOL_ZERO_DB : q31val;
838 }
839
840 return 0;
841 }
842
843 const struct sof_ipc_tplg_control_ops tplg_ipc4_control_ops = {
844 .volume_put = sof_ipc4_volume_put,
845 .volume_get = sof_ipc4_volume_get,
846 .switch_put = sof_ipc4_switch_put,
847 .switch_get = sof_ipc4_switch_get,
848 .enum_put = sof_ipc4_enum_put,
849 .enum_get = sof_ipc4_enum_get,
850 .bytes_put = sof_ipc4_bytes_put,
851 .bytes_get = sof_ipc4_bytes_get,
852 .bytes_ext_put = sof_ipc4_bytes_ext_put,
853 .bytes_ext_get = sof_ipc4_bytes_ext_get,
854 .bytes_ext_volatile_get = sof_ipc4_bytes_ext_volatile_get,
855 .update = sof_ipc4_control_update,
856 .widget_kcontrol_setup = sof_ipc4_widget_kcontrol_setup,
857 .set_up_volume_table = sof_ipc4_set_up_volume_table,
858 };
859
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