xref: /linux/sound/soc/intel/catpt/pcm.c (revision b2105aa2c6481fda72c1825800b753a0bf614517)
1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2020 Intel Corporation. All rights reserved.
4 //
5 // Author: Cezary Rojewski <cezary.rojewski@intel.com>
6 //
7 
8 #include <linux/pm_runtime.h>
9 #include <sound/soc.h>
10 #include <sound/pcm_params.h>
11 #include <uapi/sound/tlv.h>
12 #include "core.h"
13 #include "messages.h"
14 
15 struct catpt_stream_template {
16 	enum catpt_path_id path_id;
17 	enum catpt_stream_type type;
18 	u32 persistent_size;
19 	u8 num_entries;
20 	struct catpt_module_entry entries[];
21 };
22 
23 static struct catpt_stream_template system_pb = {
24 	.path_id = CATPT_PATH_SSP0_OUT,
25 	.type = CATPT_STRM_TYPE_SYSTEM,
26 	.num_entries = 1,
27 	.entries = {{ CATPT_MODID_PCM_SYSTEM, 0 }},
28 };
29 
30 static struct catpt_stream_template system_cp = {
31 	.path_id = CATPT_PATH_SSP0_IN,
32 	.type = CATPT_STRM_TYPE_CAPTURE,
33 	.num_entries = 1,
34 	.entries = {{ CATPT_MODID_PCM_CAPTURE, 0 }},
35 };
36 
37 static struct catpt_stream_template offload_pb = {
38 	.path_id = CATPT_PATH_SSP0_OUT,
39 	.type = CATPT_STRM_TYPE_RENDER,
40 	.num_entries = 1,
41 	.entries = {{ CATPT_MODID_PCM, 0 }},
42 };
43 
44 static struct catpt_stream_template loopback_cp = {
45 	.path_id = CATPT_PATH_SSP0_OUT,
46 	.type = CATPT_STRM_TYPE_LOOPBACK,
47 	.num_entries = 1,
48 	.entries = {{ CATPT_MODID_PCM_REFERENCE, 0 }},
49 };
50 
51 static struct catpt_stream_template bluetooth_pb = {
52 	.path_id = CATPT_PATH_SSP1_OUT,
53 	.type = CATPT_STRM_TYPE_BLUETOOTH_RENDER,
54 	.num_entries = 1,
55 	.entries = {{ CATPT_MODID_BLUETOOTH_RENDER, 0 }},
56 };
57 
58 static struct catpt_stream_template bluetooth_cp = {
59 	.path_id = CATPT_PATH_SSP1_IN,
60 	.type = CATPT_STRM_TYPE_BLUETOOTH_CAPTURE,
61 	.num_entries = 1,
62 	.entries = {{ CATPT_MODID_BLUETOOTH_CAPTURE, 0 }},
63 };
64 
65 static struct catpt_stream_template *catpt_topology[] = {
66 	[CATPT_STRM_TYPE_RENDER]		= &offload_pb,
67 	[CATPT_STRM_TYPE_SYSTEM]		= &system_pb,
68 	[CATPT_STRM_TYPE_CAPTURE]		= &system_cp,
69 	[CATPT_STRM_TYPE_LOOPBACK]		= &loopback_cp,
70 	[CATPT_STRM_TYPE_BLUETOOTH_RENDER]	= &bluetooth_pb,
71 	[CATPT_STRM_TYPE_BLUETOOTH_CAPTURE]	= &bluetooth_cp,
72 };
73 
74 static struct catpt_stream_template *
75 catpt_get_stream_template(struct snd_pcm_substream *substream)
76 {
77 	struct snd_soc_pcm_runtime *rtm = substream->private_data;
78 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtm, 0);
79 	enum catpt_stream_type type;
80 
81 	type = cpu_dai->driver->id;
82 
83 	/* account for capture in bidirectional dais */
84 	switch (type) {
85 	case CATPT_STRM_TYPE_SYSTEM:
86 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
87 			type = CATPT_STRM_TYPE_CAPTURE;
88 		break;
89 	case CATPT_STRM_TYPE_BLUETOOTH_RENDER:
90 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
91 			type = CATPT_STRM_TYPE_BLUETOOTH_CAPTURE;
92 		break;
93 	default:
94 		break;
95 	};
96 
97 	return catpt_topology[type];
98 }
99 
100 struct catpt_stream_runtime *
101 catpt_stream_find(struct catpt_dev *cdev, u8 stream_hw_id)
102 {
103 	struct catpt_stream_runtime *pos, *result = NULL;
104 
105 	spin_lock(&cdev->list_lock);
106 	list_for_each_entry(pos, &cdev->stream_list, node) {
107 		if (pos->info.stream_hw_id == stream_hw_id) {
108 			result = pos;
109 			break;
110 		}
111 	}
112 
113 	spin_unlock(&cdev->list_lock);
114 	return result;
115 }
116 
117 static u32 catpt_stream_read_position(struct catpt_dev *cdev,
118 				      struct catpt_stream_runtime *stream)
119 {
120 	u32 pos;
121 
122 	memcpy_fromio(&pos, cdev->lpe_ba + stream->info.read_pos_regaddr,
123 		      sizeof(pos));
124 	return pos;
125 }
126 
127 static u32 catpt_stream_volume(struct catpt_dev *cdev,
128 			       struct catpt_stream_runtime *stream, u32 channel)
129 {
130 	u32 volume, offset;
131 
132 	if (channel >= CATPT_CHANNELS_MAX)
133 		channel = 0;
134 
135 	offset = stream->info.volume_regaddr[channel];
136 	memcpy_fromio(&volume, cdev->lpe_ba + offset, sizeof(volume));
137 	return volume;
138 }
139 
140 static u32 catpt_mixer_volume(struct catpt_dev *cdev,
141 			      struct catpt_mixer_stream_info *info, u32 channel)
142 {
143 	u32 volume, offset;
144 
145 	if (channel >= CATPT_CHANNELS_MAX)
146 		channel = 0;
147 
148 	offset = info->volume_regaddr[channel];
149 	memcpy_fromio(&volume, cdev->lpe_ba + offset, sizeof(volume));
150 	return volume;
151 }
152 
153 static void catpt_arrange_page_table(struct snd_pcm_substream *substream,
154 				     struct snd_dma_buffer *pgtbl)
155 {
156 	struct snd_pcm_runtime *rtm = substream->runtime;
157 	struct snd_dma_buffer *databuf = snd_pcm_get_dma_buf(substream);
158 	int i, pages;
159 
160 	pages = snd_sgbuf_aligned_pages(rtm->dma_bytes);
161 
162 	for (i = 0; i < pages; i++) {
163 		u32 pfn, offset;
164 		u32 *page_table;
165 
166 		pfn = PFN_DOWN(snd_sgbuf_get_addr(databuf, i * PAGE_SIZE));
167 		/* incrementing by 2 on even and 3 on odd */
168 		offset = ((i << 2) + i) >> 1;
169 		page_table = (u32 *)(pgtbl->area + offset);
170 
171 		if (i & 1)
172 			*page_table |= (pfn << 4);
173 		else
174 			*page_table |= pfn;
175 	}
176 }
177 
178 static u32 catpt_get_channel_map(enum catpt_channel_config config)
179 {
180 	switch (config) {
181 	case CATPT_CHANNEL_CONFIG_MONO:
182 		return GENMASK(31, 4) | CATPT_CHANNEL_CENTER;
183 
184 	case CATPT_CHANNEL_CONFIG_STEREO:
185 		return GENMASK(31, 8) | CATPT_CHANNEL_LEFT
186 				      | (CATPT_CHANNEL_RIGHT << 4);
187 
188 	case CATPT_CHANNEL_CONFIG_2_POINT_1:
189 		return GENMASK(31, 12) | CATPT_CHANNEL_LEFT
190 				       | (CATPT_CHANNEL_RIGHT << 4)
191 				       | (CATPT_CHANNEL_LFE << 8);
192 
193 	case CATPT_CHANNEL_CONFIG_3_POINT_0:
194 		return GENMASK(31, 12) | CATPT_CHANNEL_LEFT
195 				       | (CATPT_CHANNEL_CENTER << 4)
196 				       | (CATPT_CHANNEL_RIGHT << 8);
197 
198 	case CATPT_CHANNEL_CONFIG_3_POINT_1:
199 		return GENMASK(31, 16) | CATPT_CHANNEL_LEFT
200 				       | (CATPT_CHANNEL_CENTER << 4)
201 				       | (CATPT_CHANNEL_RIGHT << 8)
202 				       | (CATPT_CHANNEL_LFE << 12);
203 
204 	case CATPT_CHANNEL_CONFIG_QUATRO:
205 		return GENMASK(31, 16) | CATPT_CHANNEL_LEFT
206 				       | (CATPT_CHANNEL_RIGHT << 4)
207 				       | (CATPT_CHANNEL_LEFT_SURROUND << 8)
208 				       | (CATPT_CHANNEL_RIGHT_SURROUND << 12);
209 
210 	case CATPT_CHANNEL_CONFIG_4_POINT_0:
211 		return GENMASK(31, 16) | CATPT_CHANNEL_LEFT
212 				       | (CATPT_CHANNEL_CENTER << 4)
213 				       | (CATPT_CHANNEL_RIGHT << 8)
214 				       | (CATPT_CHANNEL_CENTER_SURROUND << 12);
215 
216 	case CATPT_CHANNEL_CONFIG_5_POINT_0:
217 		return GENMASK(31, 20) | CATPT_CHANNEL_LEFT
218 				       | (CATPT_CHANNEL_CENTER << 4)
219 				       | (CATPT_CHANNEL_RIGHT << 8)
220 				       | (CATPT_CHANNEL_LEFT_SURROUND << 12)
221 				       | (CATPT_CHANNEL_RIGHT_SURROUND << 16);
222 
223 	case CATPT_CHANNEL_CONFIG_5_POINT_1:
224 		return GENMASK(31, 24) | CATPT_CHANNEL_CENTER
225 				       | (CATPT_CHANNEL_LEFT << 4)
226 				       | (CATPT_CHANNEL_RIGHT << 8)
227 				       | (CATPT_CHANNEL_LEFT_SURROUND << 12)
228 				       | (CATPT_CHANNEL_RIGHT_SURROUND << 16)
229 				       | (CATPT_CHANNEL_LFE << 20);
230 
231 	case CATPT_CHANNEL_CONFIG_DUAL_MONO:
232 		return GENMASK(31, 8) | CATPT_CHANNEL_LEFT
233 				      | (CATPT_CHANNEL_LEFT << 4);
234 
235 	default:
236 		return U32_MAX;
237 	}
238 }
239 
240 static enum catpt_channel_config catpt_get_channel_config(u32 num_channels)
241 {
242 	switch (num_channels) {
243 	case 6:
244 		return CATPT_CHANNEL_CONFIG_5_POINT_1;
245 	case 5:
246 		return CATPT_CHANNEL_CONFIG_5_POINT_0;
247 	case 4:
248 		return CATPT_CHANNEL_CONFIG_QUATRO;
249 	case 3:
250 		return CATPT_CHANNEL_CONFIG_2_POINT_1;
251 	case 1:
252 		return CATPT_CHANNEL_CONFIG_MONO;
253 	case 2:
254 	default:
255 		return CATPT_CHANNEL_CONFIG_STEREO;
256 	}
257 }
258 
259 static int catpt_dai_startup(struct snd_pcm_substream *substream,
260 			     struct snd_soc_dai *dai)
261 {
262 	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
263 	struct catpt_stream_template *template;
264 	struct catpt_stream_runtime *stream;
265 	struct resource *res;
266 	int ret;
267 
268 	template = catpt_get_stream_template(substream);
269 
270 	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
271 	if (!stream)
272 		return -ENOMEM;
273 
274 	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, cdev->dev, PAGE_SIZE,
275 				  &stream->pgtbl);
276 	if (ret)
277 		goto err_pgtbl;
278 
279 	res = catpt_request_region(&cdev->dram, template->persistent_size);
280 	if (!res) {
281 		ret = -EBUSY;
282 		goto err_request;
283 	}
284 
285 	catpt_dsp_update_srampge(cdev, &cdev->dram, cdev->spec->dram_mask);
286 
287 	stream->template = template;
288 	stream->persistent = res;
289 	stream->substream = substream;
290 	INIT_LIST_HEAD(&stream->node);
291 	snd_soc_dai_set_dma_data(dai, substream, stream);
292 
293 	spin_lock(&cdev->list_lock);
294 	list_add_tail(&stream->node, &cdev->stream_list);
295 	spin_unlock(&cdev->list_lock);
296 
297 	return 0;
298 
299 err_request:
300 	snd_dma_free_pages(&stream->pgtbl);
301 err_pgtbl:
302 	kfree(stream);
303 	return ret;
304 }
305 
306 static void catpt_dai_shutdown(struct snd_pcm_substream *substream,
307 			       struct snd_soc_dai *dai)
308 {
309 	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
310 	struct catpt_stream_runtime *stream;
311 
312 	stream = snd_soc_dai_get_dma_data(dai, substream);
313 
314 	spin_lock(&cdev->list_lock);
315 	list_del(&stream->node);
316 	spin_unlock(&cdev->list_lock);
317 
318 	release_resource(stream->persistent);
319 	kfree(stream->persistent);
320 	catpt_dsp_update_srampge(cdev, &cdev->dram, cdev->spec->dram_mask);
321 
322 	snd_dma_free_pages(&stream->pgtbl);
323 	kfree(stream);
324 	snd_soc_dai_set_dma_data(dai, substream, NULL);
325 }
326 
327 static int catpt_dai_hw_params(struct snd_pcm_substream *substream,
328 			       struct snd_pcm_hw_params *params,
329 			       struct snd_soc_dai *dai)
330 {
331 	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
332 	struct catpt_stream_runtime *stream;
333 	struct catpt_audio_format afmt;
334 	struct catpt_ring_info rinfo;
335 	struct snd_pcm_runtime *rtm = substream->runtime;
336 	struct snd_dma_buffer *dmab;
337 	int ret;
338 
339 	stream = snd_soc_dai_get_dma_data(dai, substream);
340 	if (stream->allocated)
341 		return 0;
342 
343 	memset(&afmt, 0, sizeof(afmt));
344 	afmt.sample_rate = params_rate(params);
345 	afmt.bit_depth = params_physical_width(params);
346 	afmt.valid_bit_depth = params_width(params);
347 	afmt.num_channels = params_channels(params);
348 	afmt.channel_config = catpt_get_channel_config(afmt.num_channels);
349 	afmt.channel_map = catpt_get_channel_map(afmt.channel_config);
350 	afmt.interleaving = CATPT_INTERLEAVING_PER_CHANNEL;
351 
352 	dmab = snd_pcm_get_dma_buf(substream);
353 	catpt_arrange_page_table(substream, &stream->pgtbl);
354 
355 	memset(&rinfo, 0, sizeof(rinfo));
356 	rinfo.page_table_addr = stream->pgtbl.addr;
357 	rinfo.num_pages = DIV_ROUND_UP(rtm->dma_bytes, PAGE_SIZE);
358 	rinfo.size = rtm->dma_bytes;
359 	rinfo.offset = 0;
360 	rinfo.ring_first_page_pfn = PFN_DOWN(snd_sgbuf_get_addr(dmab, 0));
361 
362 	ret = catpt_ipc_alloc_stream(cdev, stream->template->path_id,
363 				     stream->template->type,
364 				     &afmt, &rinfo,
365 				     stream->template->num_entries,
366 				     stream->template->entries,
367 				     stream->persistent,
368 				     cdev->scratch,
369 				     &stream->info);
370 	if (ret)
371 		return CATPT_IPC_ERROR(ret);
372 
373 	stream->allocated = true;
374 	return 0;
375 }
376 
377 static int catpt_dai_hw_free(struct snd_pcm_substream *substream,
378 			     struct snd_soc_dai *dai)
379 {
380 	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
381 	struct catpt_stream_runtime *stream;
382 
383 	stream = snd_soc_dai_get_dma_data(dai, substream);
384 	if (!stream->allocated)
385 		return 0;
386 
387 	catpt_ipc_reset_stream(cdev, stream->info.stream_hw_id);
388 	catpt_ipc_free_stream(cdev, stream->info.stream_hw_id);
389 
390 	stream->allocated = false;
391 	return 0;
392 }
393 
394 static int catpt_set_dspvol(struct catpt_dev *cdev, u8 stream_id, long *ctlvol);
395 
396 static int catpt_dai_apply_usettings(struct snd_soc_dai *dai,
397 				     struct catpt_stream_runtime *stream)
398 {
399 	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
400 	struct snd_soc_component *component = dai->component;
401 	struct snd_kcontrol *pos, *kctl = NULL;
402 	const char *name;
403 	int ret;
404 	u32 id = stream->info.stream_hw_id;
405 
406 	/* only selected streams have individual controls */
407 	switch (id) {
408 	case CATPT_PIN_ID_OFFLOAD1:
409 		name = "Media0 Playback Volume";
410 		break;
411 	case CATPT_PIN_ID_OFFLOAD2:
412 		name = "Media1 Playback Volume";
413 		break;
414 	case CATPT_PIN_ID_CAPTURE1:
415 		name = "Mic Capture Volume";
416 		break;
417 	case CATPT_PIN_ID_REFERENCE:
418 		name = "Loopback Mute";
419 		break;
420 	default:
421 		return 0;
422 	};
423 
424 	list_for_each_entry(pos, &component->card->snd_card->controls, list) {
425 		if (pos->private_data == component &&
426 		    !strncmp(name, pos->id.name, sizeof(pos->id.name))) {
427 			kctl = pos;
428 			break;
429 		}
430 	}
431 	if (!kctl)
432 		return -ENOENT;
433 
434 	if (stream->template->type != CATPT_STRM_TYPE_LOOPBACK)
435 		return catpt_set_dspvol(cdev, id, (long *)kctl->private_value);
436 	ret = catpt_ipc_mute_loopback(cdev, id, *(bool *)kctl->private_value);
437 	if (ret)
438 		return CATPT_IPC_ERROR(ret);
439 	return 0;
440 }
441 
442 static int catpt_dai_prepare(struct snd_pcm_substream *substream,
443 			     struct snd_soc_dai *dai)
444 {
445 	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
446 	struct catpt_stream_runtime *stream;
447 	int ret;
448 
449 	stream = snd_soc_dai_get_dma_data(dai, substream);
450 	if (stream->prepared)
451 		return 0;
452 
453 	ret = catpt_ipc_reset_stream(cdev, stream->info.stream_hw_id);
454 	if (ret)
455 		return CATPT_IPC_ERROR(ret);
456 
457 	ret = catpt_ipc_pause_stream(cdev, stream->info.stream_hw_id);
458 	if (ret)
459 		return CATPT_IPC_ERROR(ret);
460 
461 	ret = catpt_dsp_update_lpclock(cdev);
462 	if (ret)
463 		return ret;
464 
465 	ret = catpt_dai_apply_usettings(dai, stream);
466 	if (ret)
467 		return ret;
468 
469 	stream->prepared = true;
470 	return 0;
471 }
472 
473 static int catpt_dai_trigger(struct snd_pcm_substream *substream, int cmd,
474 			     struct snd_soc_dai *dai)
475 {
476 	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
477 	struct catpt_stream_runtime *stream;
478 	struct snd_pcm_runtime *runtime = substream->runtime;
479 	snd_pcm_uframes_t pos;
480 	int ret;
481 
482 	stream = snd_soc_dai_get_dma_data(dai, substream);
483 
484 	switch (cmd) {
485 	case SNDRV_PCM_TRIGGER_START:
486 		/* only offload is set_write_pos driven */
487 		if (stream->template->type != CATPT_STRM_TYPE_RENDER)
488 			goto resume_stream;
489 
490 		pos = frames_to_bytes(runtime, runtime->start_threshold);
491 		/*
492 		 * Dsp operates on buffer halves, thus max 2x set_write_pos
493 		 * (entire buffer filled) prior to stream start.
494 		 */
495 		ret = catpt_ipc_set_write_pos(cdev, stream->info.stream_hw_id,
496 					      pos, false, false);
497 		if (ret)
498 			return CATPT_IPC_ERROR(ret);
499 		fallthrough;
500 	case SNDRV_PCM_TRIGGER_RESUME:
501 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
502 	resume_stream:
503 		ret = catpt_ipc_resume_stream(cdev, stream->info.stream_hw_id);
504 		if (ret)
505 			return CATPT_IPC_ERROR(ret);
506 		break;
507 
508 	case SNDRV_PCM_TRIGGER_STOP:
509 		stream->prepared = false;
510 		catpt_dsp_update_lpclock(cdev);
511 		fallthrough;
512 	case SNDRV_PCM_TRIGGER_SUSPEND:
513 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
514 		ret = catpt_ipc_pause_stream(cdev, stream->info.stream_hw_id);
515 		if (ret)
516 			return CATPT_IPC_ERROR(ret);
517 		break;
518 
519 	default:
520 		break;
521 	}
522 
523 	return 0;
524 }
525 
526 void catpt_stream_update_position(struct catpt_dev *cdev,
527 				  struct catpt_stream_runtime *stream,
528 				  struct catpt_notify_position *pos)
529 {
530 	struct snd_pcm_substream *substream = stream->substream;
531 	struct snd_pcm_runtime *r = substream->runtime;
532 	snd_pcm_uframes_t dsppos, newpos;
533 	int ret;
534 
535 	dsppos = bytes_to_frames(r, pos->stream_position);
536 
537 	/* only offload is set_write_pos driven */
538 	if (stream->template->type != CATPT_STRM_TYPE_RENDER)
539 		goto exit;
540 
541 	if (dsppos >= r->buffer_size / 2)
542 		newpos = r->buffer_size / 2;
543 	else
544 		newpos = 0;
545 	/*
546 	 * Dsp operates on buffer halves, thus on every notify position
547 	 * (buffer half consumed) update wp to allow stream progression.
548 	 */
549 	ret = catpt_ipc_set_write_pos(cdev, stream->info.stream_hw_id,
550 				      frames_to_bytes(r, newpos),
551 				      false, false);
552 	if (ret) {
553 		dev_err(cdev->dev, "update position for stream %d failed: %d\n",
554 			stream->info.stream_hw_id, ret);
555 		return;
556 	}
557 exit:
558 	snd_pcm_period_elapsed(substream);
559 }
560 
561 /* 200 ms for 2 32-bit channels at 48kHz (native format) */
562 #define CATPT_BUFFER_MAX_SIZE	76800
563 #define CATPT_PCM_PERIODS_MAX	4
564 #define CATPT_PCM_PERIODS_MIN	2
565 
566 static const struct snd_pcm_hardware catpt_pcm_hardware = {
567 	.info			= SNDRV_PCM_INFO_MMAP |
568 				  SNDRV_PCM_INFO_MMAP_VALID |
569 				  SNDRV_PCM_INFO_INTERLEAVED |
570 				  SNDRV_PCM_INFO_PAUSE |
571 				  SNDRV_PCM_INFO_RESUME |
572 				  SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
573 	.formats		= SNDRV_PCM_FMTBIT_S16_LE |
574 				  SNDRV_PCM_FMTBIT_S24_LE |
575 				  SNDRV_PCM_FMTBIT_S32_LE,
576 	.period_bytes_min	= PAGE_SIZE,
577 	.period_bytes_max	= CATPT_BUFFER_MAX_SIZE / CATPT_PCM_PERIODS_MIN,
578 	.periods_min		= CATPT_PCM_PERIODS_MIN,
579 	.periods_max		= CATPT_PCM_PERIODS_MAX,
580 	.buffer_bytes_max	= CATPT_BUFFER_MAX_SIZE,
581 };
582 
583 static int catpt_component_pcm_construct(struct snd_soc_component *component,
584 					 struct snd_soc_pcm_runtime *rtm)
585 {
586 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
587 
588 	snd_pcm_set_managed_buffer_all(rtm->pcm, SNDRV_DMA_TYPE_DEV_SG,
589 				       cdev->dev,
590 				       catpt_pcm_hardware.buffer_bytes_max,
591 				       catpt_pcm_hardware.buffer_bytes_max);
592 
593 	return 0;
594 }
595 
596 static int catpt_component_open(struct snd_soc_component *component,
597 				struct snd_pcm_substream *substream)
598 {
599 	struct snd_soc_pcm_runtime *rtm = substream->private_data;
600 
601 	if (rtm->dai_link->no_pcm)
602 		return 0;
603 	snd_soc_set_runtime_hwparams(substream, &catpt_pcm_hardware);
604 	return 0;
605 }
606 
607 static snd_pcm_uframes_t
608 catpt_component_pointer(struct snd_soc_component *component,
609 			struct snd_pcm_substream *substream)
610 {
611 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
612 	struct catpt_stream_runtime *stream;
613 	struct snd_soc_pcm_runtime *rtm = substream->private_data;
614 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtm, 0);
615 	u32 pos;
616 
617 	if (rtm->dai_link->no_pcm)
618 		return 0;
619 
620 	stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
621 	pos = catpt_stream_read_position(cdev, stream);
622 
623 	return bytes_to_frames(substream->runtime, pos);
624 }
625 
626 static const struct snd_soc_dai_ops catpt_fe_dai_ops = {
627 	.startup = catpt_dai_startup,
628 	.shutdown = catpt_dai_shutdown,
629 	.hw_params = catpt_dai_hw_params,
630 	.hw_free = catpt_dai_hw_free,
631 	.prepare = catpt_dai_prepare,
632 	.trigger = catpt_dai_trigger,
633 };
634 
635 static int catpt_dai_pcm_new(struct snd_soc_pcm_runtime *rtm,
636 			     struct snd_soc_dai *dai)
637 {
638 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtm, 0);
639 	struct catpt_dev *cdev = dev_get_drvdata(dai->dev);
640 	struct catpt_ssp_device_format devfmt;
641 	int ret;
642 
643 	devfmt.iface = dai->driver->id;
644 	devfmt.channels = codec_dai->driver->capture.channels_max;
645 
646 	switch (devfmt.iface) {
647 	case CATPT_SSP_IFACE_0:
648 		devfmt.mclk = CATPT_MCLK_FREQ_24_MHZ;
649 
650 		switch (devfmt.channels) {
651 		case 4:
652 			devfmt.mode = CATPT_SSP_MODE_TDM_PROVIDER;
653 			devfmt.clock_divider = 4;
654 			break;
655 		case 2:
656 		default:
657 			devfmt.mode = CATPT_SSP_MODE_I2S_PROVIDER;
658 			devfmt.clock_divider = 9;
659 			break;
660 		}
661 		break;
662 
663 	case CATPT_SSP_IFACE_1:
664 		devfmt.mclk = CATPT_MCLK_OFF;
665 		devfmt.mode = CATPT_SSP_MODE_I2S_CONSUMER;
666 		devfmt.clock_divider = 0;
667 		break;
668 	}
669 
670 	/* see if this is a new configuration */
671 	if (!memcmp(&cdev->devfmt[devfmt.iface], &devfmt, sizeof(devfmt)))
672 		return 0;
673 
674 	pm_runtime_get_sync(cdev->dev);
675 
676 	ret = catpt_ipc_set_device_format(cdev, &devfmt);
677 
678 	pm_runtime_mark_last_busy(cdev->dev);
679 	pm_runtime_put_autosuspend(cdev->dev);
680 
681 	if (ret)
682 		return CATPT_IPC_ERROR(ret);
683 
684 	/* store device format set for given SSP */
685 	memcpy(&cdev->devfmt[devfmt.iface], &devfmt, sizeof(devfmt));
686 	return 0;
687 }
688 
689 static struct snd_soc_dai_driver dai_drivers[] = {
690 /* FE DAIs */
691 {
692 	.name  = "System Pin",
693 	.id = CATPT_STRM_TYPE_SYSTEM,
694 	.ops = &catpt_fe_dai_ops,
695 	.playback = {
696 		.stream_name = "System Playback",
697 		.channels_min = 2,
698 		.channels_max = 2,
699 		.rates = SNDRV_PCM_RATE_48000,
700 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
701 	},
702 	.capture = {
703 		.stream_name = "Analog Capture",
704 		.channels_min = 2,
705 		.channels_max = 4,
706 		.rates = SNDRV_PCM_RATE_48000,
707 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
708 	},
709 },
710 {
711 	.name  = "Offload0 Pin",
712 	.id = CATPT_STRM_TYPE_RENDER,
713 	.ops = &catpt_fe_dai_ops,
714 	.playback = {
715 		.stream_name = "Offload0 Playback",
716 		.channels_min = 2,
717 		.channels_max = 2,
718 		.rates = SNDRV_PCM_RATE_8000_192000,
719 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
720 	},
721 },
722 {
723 	.name  = "Offload1 Pin",
724 	.id = CATPT_STRM_TYPE_RENDER,
725 	.ops = &catpt_fe_dai_ops,
726 	.playback = {
727 		.stream_name = "Offload1 Playback",
728 		.channels_min = 2,
729 		.channels_max = 2,
730 		.rates = SNDRV_PCM_RATE_8000_192000,
731 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
732 	},
733 },
734 {
735 	.name  = "Loopback Pin",
736 	.id = CATPT_STRM_TYPE_LOOPBACK,
737 	.ops = &catpt_fe_dai_ops,
738 	.capture = {
739 		.stream_name = "Loopback Capture",
740 		.channels_min = 2,
741 		.channels_max = 2,
742 		.rates = SNDRV_PCM_RATE_48000,
743 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
744 	},
745 },
746 {
747 	.name  = "Bluetooth Pin",
748 	.id = CATPT_STRM_TYPE_BLUETOOTH_RENDER,
749 	.ops = &catpt_fe_dai_ops,
750 	.playback = {
751 		.stream_name = "Bluetooth Playback",
752 		.channels_min = 1,
753 		.channels_max = 1,
754 		.rates = SNDRV_PCM_RATE_8000,
755 		.formats = SNDRV_PCM_FMTBIT_S16_LE,
756 	},
757 	.capture = {
758 		.stream_name = "Bluetooth Capture",
759 		.channels_min = 1,
760 		.channels_max = 1,
761 		.rates = SNDRV_PCM_RATE_8000,
762 		.formats = SNDRV_PCM_FMTBIT_S16_LE,
763 	},
764 },
765 /* BE DAIs */
766 {
767 	.name = "ssp0-port",
768 	.id = CATPT_SSP_IFACE_0,
769 	.pcm_new = catpt_dai_pcm_new,
770 	.playback = {
771 		.channels_min = 1,
772 		.channels_max = 8,
773 	},
774 	.capture = {
775 		.channels_min = 1,
776 		.channels_max = 8,
777 	},
778 },
779 {
780 	.name = "ssp1-port",
781 	.id = CATPT_SSP_IFACE_1,
782 	.pcm_new = catpt_dai_pcm_new,
783 	.playback = {
784 		.channels_min = 1,
785 		.channels_max = 8,
786 	},
787 	.capture = {
788 		.channels_min = 1,
789 		.channels_max = 8,
790 	},
791 },
792 };
793 
794 #define DSP_VOLUME_MAX		S32_MAX /* 0db */
795 #define DSP_VOLUME_STEP_MAX	30
796 
797 static u32 ctlvol_to_dspvol(u32 value)
798 {
799 	if (value > DSP_VOLUME_STEP_MAX)
800 		value = 0;
801 	return DSP_VOLUME_MAX >> (DSP_VOLUME_STEP_MAX - value);
802 }
803 
804 static u32 dspvol_to_ctlvol(u32 volume)
805 {
806 	if (volume > DSP_VOLUME_MAX)
807 		return DSP_VOLUME_STEP_MAX;
808 	return volume ? __fls(volume) : 0;
809 }
810 
811 static int catpt_set_dspvol(struct catpt_dev *cdev, u8 stream_id, long *ctlvol)
812 {
813 	u32 dspvol;
814 	int ret, i;
815 
816 	for (i = 1; i < CATPT_CHANNELS_MAX; i++)
817 		if (ctlvol[i] != ctlvol[0])
818 			break;
819 
820 	if (i == CATPT_CHANNELS_MAX) {
821 		dspvol = ctlvol_to_dspvol(ctlvol[0]);
822 
823 		ret = catpt_ipc_set_volume(cdev, stream_id,
824 					   CATPT_ALL_CHANNELS_MASK, dspvol,
825 					   0, CATPT_AUDIO_CURVE_NONE);
826 	} else {
827 		for (i = 0; i < CATPT_CHANNELS_MAX; i++) {
828 			dspvol = ctlvol_to_dspvol(ctlvol[i]);
829 
830 			ret = catpt_ipc_set_volume(cdev, stream_id,
831 						   i, dspvol,
832 						   0, CATPT_AUDIO_CURVE_NONE);
833 			if (ret)
834 				break;
835 		}
836 	}
837 
838 	if (ret)
839 		return CATPT_IPC_ERROR(ret);
840 	return 0;
841 }
842 
843 static int catpt_volume_info(struct snd_kcontrol *kcontrol,
844 			     struct snd_ctl_elem_info *uinfo)
845 {
846 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
847 	uinfo->count = CATPT_CHANNELS_MAX;
848 	uinfo->value.integer.min = 0;
849 	uinfo->value.integer.max = DSP_VOLUME_STEP_MAX;
850 	return 0;
851 }
852 
853 static int catpt_mixer_volume_get(struct snd_kcontrol *kcontrol,
854 				  struct snd_ctl_elem_value *ucontrol)
855 {
856 	struct snd_soc_component *component =
857 		snd_soc_kcontrol_component(kcontrol);
858 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
859 	u32 dspvol;
860 	int i;
861 
862 	pm_runtime_get_sync(cdev->dev);
863 
864 	for (i = 0; i < CATPT_CHANNELS_MAX; i++) {
865 		dspvol = catpt_mixer_volume(cdev, &cdev->mixer, i);
866 		ucontrol->value.integer.value[i] = dspvol_to_ctlvol(dspvol);
867 	}
868 
869 	pm_runtime_mark_last_busy(cdev->dev);
870 	pm_runtime_put_autosuspend(cdev->dev);
871 
872 	return 0;
873 }
874 
875 static int catpt_mixer_volume_put(struct snd_kcontrol *kcontrol,
876 				  struct snd_ctl_elem_value *ucontrol)
877 {
878 	struct snd_soc_component *component =
879 		snd_soc_kcontrol_component(kcontrol);
880 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
881 	int ret;
882 
883 	pm_runtime_get_sync(cdev->dev);
884 
885 	ret = catpt_set_dspvol(cdev, cdev->mixer.mixer_hw_id,
886 			       ucontrol->value.integer.value);
887 
888 	pm_runtime_mark_last_busy(cdev->dev);
889 	pm_runtime_put_autosuspend(cdev->dev);
890 
891 	return ret;
892 }
893 
894 static int catpt_stream_volume_get(struct snd_kcontrol *kcontrol,
895 				   struct snd_ctl_elem_value *ucontrol,
896 				   enum catpt_pin_id pin_id)
897 {
898 	struct snd_soc_component *component =
899 		snd_soc_kcontrol_component(kcontrol);
900 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
901 	struct catpt_stream_runtime *stream;
902 	long *ctlvol = (long *)kcontrol->private_value;
903 	u32 dspvol;
904 	int i;
905 
906 	stream = catpt_stream_find(cdev, pin_id);
907 	if (!stream) {
908 		for (i = 0; i < CATPT_CHANNELS_MAX; i++)
909 			ucontrol->value.integer.value[i] = ctlvol[i];
910 		return 0;
911 	}
912 
913 	pm_runtime_get_sync(cdev->dev);
914 
915 	for (i = 0; i < CATPT_CHANNELS_MAX; i++) {
916 		dspvol = catpt_stream_volume(cdev, stream, i);
917 		ucontrol->value.integer.value[i] = dspvol_to_ctlvol(dspvol);
918 	}
919 
920 	pm_runtime_mark_last_busy(cdev->dev);
921 	pm_runtime_put_autosuspend(cdev->dev);
922 
923 	return 0;
924 }
925 
926 static int catpt_stream_volume_put(struct snd_kcontrol *kcontrol,
927 				   struct snd_ctl_elem_value *ucontrol,
928 				   enum catpt_pin_id pin_id)
929 {
930 	struct snd_soc_component *component =
931 		snd_soc_kcontrol_component(kcontrol);
932 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
933 	struct catpt_stream_runtime *stream;
934 	long *ctlvol = (long *)kcontrol->private_value;
935 	int ret, i;
936 
937 	stream = catpt_stream_find(cdev, pin_id);
938 	if (!stream) {
939 		for (i = 0; i < CATPT_CHANNELS_MAX; i++)
940 			ctlvol[i] = ucontrol->value.integer.value[i];
941 		return 0;
942 	}
943 
944 	pm_runtime_get_sync(cdev->dev);
945 
946 	ret = catpt_set_dspvol(cdev, stream->info.stream_hw_id,
947 			       ucontrol->value.integer.value);
948 
949 	pm_runtime_mark_last_busy(cdev->dev);
950 	pm_runtime_put_autosuspend(cdev->dev);
951 
952 	if (ret)
953 		return ret;
954 
955 	for (i = 0; i < CATPT_CHANNELS_MAX; i++)
956 		ctlvol[i] = ucontrol->value.integer.value[i];
957 	return 0;
958 }
959 
960 static int catpt_offload1_volume_get(struct snd_kcontrol *kctl,
961 				     struct snd_ctl_elem_value *uctl)
962 {
963 	return catpt_stream_volume_get(kctl, uctl, CATPT_PIN_ID_OFFLOAD1);
964 }
965 
966 static int catpt_offload1_volume_put(struct snd_kcontrol *kctl,
967 				     struct snd_ctl_elem_value *uctl)
968 {
969 	return catpt_stream_volume_put(kctl, uctl, CATPT_PIN_ID_OFFLOAD1);
970 }
971 
972 static int catpt_offload2_volume_get(struct snd_kcontrol *kctl,
973 				     struct snd_ctl_elem_value *uctl)
974 {
975 	return catpt_stream_volume_get(kctl, uctl, CATPT_PIN_ID_OFFLOAD2);
976 }
977 
978 static int catpt_offload2_volume_put(struct snd_kcontrol *kctl,
979 				     struct snd_ctl_elem_value *uctl)
980 {
981 	return catpt_stream_volume_put(kctl, uctl, CATPT_PIN_ID_OFFLOAD2);
982 }
983 
984 static int catpt_capture_volume_get(struct snd_kcontrol *kctl,
985 				    struct snd_ctl_elem_value *uctl)
986 {
987 	return catpt_stream_volume_get(kctl, uctl, CATPT_PIN_ID_CAPTURE1);
988 }
989 
990 static int catpt_capture_volume_put(struct snd_kcontrol *kctl,
991 				    struct snd_ctl_elem_value *uctl)
992 {
993 	return catpt_stream_volume_put(kctl, uctl, CATPT_PIN_ID_CAPTURE1);
994 }
995 
996 static int catpt_loopback_switch_get(struct snd_kcontrol *kcontrol,
997 				     struct snd_ctl_elem_value *ucontrol)
998 {
999 	ucontrol->value.integer.value[0] = *(bool *)kcontrol->private_value;
1000 	return 0;
1001 }
1002 
1003 static int catpt_loopback_switch_put(struct snd_kcontrol *kcontrol,
1004 				     struct snd_ctl_elem_value *ucontrol)
1005 {
1006 	struct snd_soc_component *component =
1007 		snd_soc_kcontrol_component(kcontrol);
1008 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
1009 	struct catpt_stream_runtime *stream;
1010 	bool mute;
1011 	int ret;
1012 
1013 	mute = (bool)ucontrol->value.integer.value[0];
1014 	stream = catpt_stream_find(cdev, CATPT_PIN_ID_REFERENCE);
1015 	if (!stream) {
1016 		*(bool *)kcontrol->private_value = mute;
1017 		return 0;
1018 	}
1019 
1020 	pm_runtime_get_sync(cdev->dev);
1021 
1022 	ret = catpt_ipc_mute_loopback(cdev, stream->info.stream_hw_id, mute);
1023 
1024 	pm_runtime_mark_last_busy(cdev->dev);
1025 	pm_runtime_put_autosuspend(cdev->dev);
1026 
1027 	if (ret)
1028 		return CATPT_IPC_ERROR(ret);
1029 
1030 	*(bool *)kcontrol->private_value = mute;
1031 	return 0;
1032 }
1033 
1034 static int catpt_waves_switch_get(struct snd_kcontrol *kcontrol,
1035 				  struct snd_ctl_elem_value *ucontrol)
1036 {
1037 	return 0;
1038 }
1039 
1040 static int catpt_waves_switch_put(struct snd_kcontrol *kcontrol,
1041 				  struct snd_ctl_elem_value *ucontrol)
1042 {
1043 	return 0;
1044 }
1045 
1046 static int catpt_waves_param_get(struct snd_kcontrol *kcontrol,
1047 				 unsigned int __user *bytes,
1048 				 unsigned int size)
1049 {
1050 	return 0;
1051 }
1052 
1053 static int catpt_waves_param_put(struct snd_kcontrol *kcontrol,
1054 				 const unsigned int __user *bytes,
1055 				 unsigned int size)
1056 {
1057 	return 0;
1058 }
1059 
1060 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(catpt_volume_tlv, -9000, 300, 1);
1061 
1062 #define CATPT_VOLUME_CTL(kname, sname) \
1063 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1064 	.name = (kname), \
1065 	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
1066 		  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
1067 	.info = catpt_volume_info, \
1068 	.get = catpt_##sname##_volume_get, \
1069 	.put = catpt_##sname##_volume_put, \
1070 	.tlv.p = catpt_volume_tlv, \
1071 	.private_value = (unsigned long) \
1072 		&(long[CATPT_CHANNELS_MAX]) {0} }
1073 
1074 static const struct snd_kcontrol_new component_kcontrols[] = {
1075 /* Master volume (mixer stream) */
1076 CATPT_VOLUME_CTL("Master Playback Volume", mixer),
1077 /* Individual volume controls for offload and capture */
1078 CATPT_VOLUME_CTL("Media0 Playback Volume", offload1),
1079 CATPT_VOLUME_CTL("Media1 Playback Volume", offload2),
1080 CATPT_VOLUME_CTL("Mic Capture Volume", capture),
1081 SOC_SINGLE_BOOL_EXT("Loopback Mute", (unsigned long)&(bool[1]) {0},
1082 		    catpt_loopback_switch_get, catpt_loopback_switch_put),
1083 /* Enable or disable WAVES module */
1084 SOC_SINGLE_BOOL_EXT("Waves Switch", 0,
1085 		    catpt_waves_switch_get, catpt_waves_switch_put),
1086 /* WAVES module parameter control */
1087 SND_SOC_BYTES_TLV("Waves Set Param", 128,
1088 		  catpt_waves_param_get, catpt_waves_param_put),
1089 };
1090 
1091 static const struct snd_soc_dapm_widget component_widgets[] = {
1092 	SND_SOC_DAPM_AIF_IN("SSP0 CODEC IN", NULL, 0, SND_SOC_NOPM, 0, 0),
1093 	SND_SOC_DAPM_AIF_OUT("SSP0 CODEC OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
1094 	SND_SOC_DAPM_AIF_IN("SSP1 BT IN", NULL, 0, SND_SOC_NOPM, 0, 0),
1095 	SND_SOC_DAPM_AIF_OUT("SSP1 BT OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
1096 
1097 	SND_SOC_DAPM_MIXER("Playback VMixer", SND_SOC_NOPM, 0, 0, NULL, 0),
1098 };
1099 
1100 static const struct snd_soc_dapm_route component_routes[] = {
1101 	{"Playback VMixer", NULL, "System Playback"},
1102 	{"Playback VMixer", NULL, "Offload0 Playback"},
1103 	{"Playback VMixer", NULL, "Offload1 Playback"},
1104 
1105 	{"SSP0 CODEC OUT", NULL, "Playback VMixer"},
1106 
1107 	{"Analog Capture", NULL, "SSP0 CODEC IN"},
1108 	{"Loopback Capture", NULL, "SSP0 CODEC IN"},
1109 
1110 	{"SSP1 BT OUT", NULL, "Bluetooth Playback"},
1111 	{"Bluetooth Capture", NULL, "SSP1 BT IN"},
1112 };
1113 
1114 static const struct snd_soc_component_driver catpt_comp_driver = {
1115 	.name = "catpt-platform",
1116 
1117 	.pcm_construct = catpt_component_pcm_construct,
1118 	.open = catpt_component_open,
1119 	.pointer = catpt_component_pointer,
1120 
1121 	.controls = component_kcontrols,
1122 	.num_controls = ARRAY_SIZE(component_kcontrols),
1123 	.dapm_widgets = component_widgets,
1124 	.num_dapm_widgets = ARRAY_SIZE(component_widgets),
1125 	.dapm_routes = component_routes,
1126 	.num_dapm_routes = ARRAY_SIZE(component_routes),
1127 };
1128 
1129 int catpt_arm_stream_templates(struct catpt_dev *cdev)
1130 {
1131 	struct resource *res;
1132 	u32 scratch_size = 0;
1133 	int i, j;
1134 
1135 	for (i = 0; i < ARRAY_SIZE(catpt_topology); i++) {
1136 		struct catpt_stream_template *template;
1137 		struct catpt_module_entry *entry;
1138 		struct catpt_module_type *type;
1139 
1140 		template = catpt_topology[i];
1141 		template->persistent_size = 0;
1142 
1143 		for (j = 0; j < template->num_entries; j++) {
1144 			entry = &template->entries[j];
1145 			type = &cdev->modules[entry->module_id];
1146 
1147 			if (!type->loaded)
1148 				return -ENOENT;
1149 
1150 			entry->entry_point = type->entry_point;
1151 			template->persistent_size += type->persistent_size;
1152 			if (type->scratch_size > scratch_size)
1153 				scratch_size = type->scratch_size;
1154 		}
1155 	}
1156 
1157 	if (scratch_size) {
1158 		/* allocate single scratch area for all modules */
1159 		res = catpt_request_region(&cdev->dram, scratch_size);
1160 		if (!res)
1161 			return -EBUSY;
1162 		cdev->scratch = res;
1163 	}
1164 
1165 	return 0;
1166 }
1167 
1168 int catpt_register_plat_component(struct catpt_dev *cdev)
1169 {
1170 	struct snd_soc_component *component;
1171 	int ret;
1172 
1173 	component = devm_kzalloc(cdev->dev, sizeof(*component), GFP_KERNEL);
1174 	if (!component)
1175 		return -ENOMEM;
1176 
1177 	ret = snd_soc_component_initialize(component, &catpt_comp_driver,
1178 					   cdev->dev);
1179 	if (ret)
1180 		return ret;
1181 
1182 	component->name = catpt_comp_driver.name;
1183 	return snd_soc_add_component(component, dai_drivers,
1184 				     ARRAY_SIZE(dai_drivers));
1185 }
1186