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) 2018 Intel Corporation. All rights reserved.
7 //
8 // Authors: Keyon Jie <yang.jie@linux.intel.com>
9 //
10
11 #include <sound/pcm_params.h>
12 #include <sound/hdaudio_ext.h>
13 #include "../sof-priv.h"
14 #include "../sof-audio.h"
15 #include "hda.h"
16
17 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
18
19 struct hda_pipe_params {
20 u8 host_dma_id;
21 u8 link_dma_id;
22 u32 ch;
23 u32 s_freq;
24 u32 s_fmt;
25 u8 linktype;
26 snd_pcm_format_t format;
27 int link_index;
28 int stream;
29 unsigned int host_bps;
30 unsigned int link_bps;
31 };
32
33 /*
34 * This function checks if the host dma channel corresponding
35 * to the link DMA stream_tag argument is assigned to one
36 * of the FEs connected to the BE DAI.
37 */
hda_check_fes(struct snd_soc_pcm_runtime * rtd,int dir,int stream_tag)38 static bool hda_check_fes(struct snd_soc_pcm_runtime *rtd,
39 int dir, int stream_tag)
40 {
41 struct snd_pcm_substream *fe_substream;
42 struct hdac_stream *fe_hstream;
43 struct snd_soc_dpcm *dpcm;
44
45 for_each_dpcm_fe(rtd, dir, dpcm) {
46 fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, dir);
47 fe_hstream = fe_substream->runtime->private_data;
48 if (fe_hstream->stream_tag == stream_tag)
49 return true;
50 }
51
52 return false;
53 }
54
55 static struct hdac_ext_stream *
hda_link_stream_assign(struct hdac_bus * bus,struct snd_pcm_substream * substream)56 hda_link_stream_assign(struct hdac_bus *bus,
57 struct snd_pcm_substream *substream)
58 {
59 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
60 struct sof_intel_hda_stream *hda_stream;
61 struct hdac_ext_stream *res = NULL;
62 struct hdac_stream *stream = NULL;
63
64 int stream_dir = substream->stream;
65
66 if (!bus->ppcap) {
67 dev_err(bus->dev, "stream type not supported\n");
68 return NULL;
69 }
70
71 spin_lock_irq(&bus->reg_lock);
72 list_for_each_entry(stream, &bus->stream_list, list) {
73 struct hdac_ext_stream *hstream =
74 stream_to_hdac_ext_stream(stream);
75 if (stream->direction != substream->stream)
76 continue;
77
78 hda_stream = hstream_to_sof_hda_stream(hstream);
79
80 /* check if link is available */
81 if (!hstream->link_locked) {
82 if (stream->opened) {
83 /*
84 * check if the stream tag matches the stream
85 * tag of one of the connected FEs
86 */
87 if (hda_check_fes(rtd, stream_dir,
88 stream->stream_tag)) {
89 res = hstream;
90 break;
91 }
92 } else {
93 res = hstream;
94
95 /*
96 * This must be a hostless stream.
97 * So reserve the host DMA channel.
98 */
99 hda_stream->host_reserved = 1;
100 break;
101 }
102 }
103 }
104
105 if (res) {
106 /*
107 * Decouple host and link DMA. The decoupled flag
108 * is updated in snd_hdac_ext_stream_decouple().
109 */
110 if (!res->decoupled)
111 snd_hdac_ext_stream_decouple_locked(bus, res, true);
112
113 res->link_locked = 1;
114 res->link_substream = substream;
115 }
116 spin_unlock_irq(&bus->reg_lock);
117
118 return res;
119 }
120
hda_link_dma_params(struct hdac_ext_stream * stream,struct hda_pipe_params * params)121 static int hda_link_dma_params(struct hdac_ext_stream *stream,
122 struct hda_pipe_params *params)
123 {
124 struct hdac_stream *hstream = &stream->hstream;
125 unsigned char stream_tag = hstream->stream_tag;
126 struct hdac_bus *bus = hstream->bus;
127 struct hdac_ext_link *link;
128 unsigned int format_val;
129
130 snd_hdac_ext_stream_decouple(bus, stream, true);
131 snd_hdac_ext_link_stream_reset(stream);
132
133 format_val = snd_hdac_calc_stream_format(params->s_freq, params->ch,
134 params->format,
135 params->link_bps, 0);
136
137 dev_dbg(bus->dev, "format_val=%d, rate=%d, ch=%d, format=%d\n",
138 format_val, params->s_freq, params->ch, params->format);
139
140 snd_hdac_ext_link_stream_setup(stream, format_val);
141
142 if (stream->hstream.direction == SNDRV_PCM_STREAM_PLAYBACK) {
143 list_for_each_entry(link, &bus->hlink_list, list) {
144 if (link->index == params->link_index)
145 snd_hdac_ext_link_set_stream_id(link,
146 stream_tag);
147 }
148 }
149
150 stream->link_prepared = 1;
151
152 return 0;
153 }
154
155 /* Send DAI_CONFIG IPC to the DAI that matches the dai_name and direction */
hda_link_config_ipc(struct sof_intel_hda_stream * hda_stream,const char * dai_name,int channel,int dir)156 static int hda_link_config_ipc(struct sof_intel_hda_stream *hda_stream,
157 const char *dai_name, int channel, int dir)
158 {
159 struct sof_ipc_dai_config *config;
160 struct snd_sof_dai *sof_dai;
161 struct sof_ipc_reply reply;
162 int ret = 0;
163
164 list_for_each_entry(sof_dai, &hda_stream->sdev->dai_list, list) {
165 if (!sof_dai->cpu_dai_name)
166 continue;
167
168 if (!strcmp(dai_name, sof_dai->cpu_dai_name) &&
169 dir == sof_dai->comp_dai.direction) {
170 config = sof_dai->dai_config;
171
172 if (!config) {
173 dev_err(hda_stream->sdev->dev,
174 "error: no config for DAI %s\n",
175 sof_dai->name);
176 return -EINVAL;
177 }
178
179 /* update config with stream tag */
180 config->hda.link_dma_ch = channel;
181
182 /* send IPC */
183 ret = sof_ipc_tx_message(hda_stream->sdev->ipc,
184 config->hdr.cmd,
185 config,
186 config->hdr.size,
187 &reply, sizeof(reply));
188
189 if (ret < 0)
190 dev_err(hda_stream->sdev->dev,
191 "error: failed to set dai config for %s\n",
192 sof_dai->name);
193 return ret;
194 }
195 }
196
197 return -EINVAL;
198 }
199
hda_link_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)200 static int hda_link_hw_params(struct snd_pcm_substream *substream,
201 struct snd_pcm_hw_params *params,
202 struct snd_soc_dai *dai)
203 {
204 struct hdac_stream *hstream = substream->runtime->private_data;
205 struct hdac_bus *bus = hstream->bus;
206 struct hdac_ext_stream *link_dev;
207 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
208 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
209 struct sof_intel_hda_stream *hda_stream;
210 struct hda_pipe_params p_params = {0};
211 struct hdac_ext_link *link;
212 int stream_tag;
213 int ret;
214
215 /* get stored dma data if resuming from system suspend */
216 link_dev = snd_soc_dai_get_dma_data(dai, substream);
217 if (!link_dev) {
218 link_dev = hda_link_stream_assign(bus, substream);
219 if (!link_dev)
220 return -EBUSY;
221
222 snd_soc_dai_set_dma_data(dai, substream, (void *)link_dev);
223 }
224
225 stream_tag = hdac_stream(link_dev)->stream_tag;
226
227 hda_stream = hstream_to_sof_hda_stream(link_dev);
228
229 /* update the DSP with the new tag */
230 ret = hda_link_config_ipc(hda_stream, dai->name, stream_tag - 1,
231 substream->stream);
232 if (ret < 0)
233 return ret;
234
235 link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
236 if (!link)
237 return -EINVAL;
238
239 /* set the hdac_stream in the codec dai */
240 snd_soc_dai_set_stream(codec_dai, hdac_stream(link_dev), substream->stream);
241
242 p_params.s_fmt = snd_pcm_format_width(params_format(params));
243 p_params.ch = params_channels(params);
244 p_params.s_freq = params_rate(params);
245 p_params.stream = substream->stream;
246 p_params.link_dma_id = stream_tag - 1;
247 p_params.link_index = link->index;
248 p_params.format = params_format(params);
249
250 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
251 p_params.link_bps = codec_dai->driver->playback.sig_bits;
252 else
253 p_params.link_bps = codec_dai->driver->capture.sig_bits;
254
255 return hda_link_dma_params(link_dev, &p_params);
256 }
257
hda_link_pcm_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)258 static int hda_link_pcm_prepare(struct snd_pcm_substream *substream,
259 struct snd_soc_dai *dai)
260 {
261 struct hdac_ext_stream *link_dev =
262 snd_soc_dai_get_dma_data(dai, substream);
263 struct snd_sof_dev *sdev =
264 snd_soc_component_get_drvdata(dai->component);
265 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
266 int stream = substream->stream;
267
268 if (link_dev->link_prepared)
269 return 0;
270
271 dev_dbg(sdev->dev, "hda: prepare stream dir %d\n", substream->stream);
272
273 return hda_link_hw_params(substream, &rtd->dpcm[stream].hw_params,
274 dai);
275 }
276
hda_link_pcm_trigger(struct snd_pcm_substream * substream,int cmd,struct snd_soc_dai * dai)277 static int hda_link_pcm_trigger(struct snd_pcm_substream *substream,
278 int cmd, struct snd_soc_dai *dai)
279 {
280 struct hdac_ext_stream *link_dev =
281 snd_soc_dai_get_dma_data(dai, substream);
282 struct sof_intel_hda_stream *hda_stream;
283 struct snd_soc_pcm_runtime *rtd;
284 struct hdac_ext_link *link;
285 struct hdac_stream *hstream;
286 struct hdac_bus *bus;
287 int stream_tag;
288 int ret;
289
290 hstream = substream->runtime->private_data;
291 bus = hstream->bus;
292 rtd = asoc_substream_to_rtd(substream);
293
294 link = snd_hdac_ext_bus_get_link(bus, asoc_rtd_to_codec(rtd, 0)->component->name);
295 if (!link)
296 return -EINVAL;
297
298 hda_stream = hstream_to_sof_hda_stream(link_dev);
299
300 dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd);
301 switch (cmd) {
302 case SNDRV_PCM_TRIGGER_RESUME:
303 /* set up hw_params */
304 ret = hda_link_pcm_prepare(substream, dai);
305 if (ret < 0) {
306 dev_err(dai->dev,
307 "error: setting up hw_params during resume\n");
308 return ret;
309 }
310
311 fallthrough;
312 case SNDRV_PCM_TRIGGER_START:
313 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
314 snd_hdac_ext_link_stream_start(link_dev);
315 break;
316 case SNDRV_PCM_TRIGGER_SUSPEND:
317 case SNDRV_PCM_TRIGGER_STOP:
318 /*
319 * clear link DMA channel. It will be assigned when
320 * hw_params is set up again after resume.
321 */
322 ret = hda_link_config_ipc(hda_stream, dai->name,
323 DMA_CHAN_INVALID, substream->stream);
324 if (ret < 0)
325 return ret;
326
327 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
328 stream_tag = hdac_stream(link_dev)->stream_tag;
329 snd_hdac_ext_link_clear_stream_id(link, stream_tag);
330 }
331
332 link_dev->link_prepared = 0;
333
334 fallthrough;
335 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
336 snd_hdac_ext_link_stream_clear(link_dev);
337 break;
338 default:
339 return -EINVAL;
340 }
341 return 0;
342 }
343
hda_link_hw_free(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)344 static int hda_link_hw_free(struct snd_pcm_substream *substream,
345 struct snd_soc_dai *dai)
346 {
347 unsigned int stream_tag;
348 struct sof_intel_hda_stream *hda_stream;
349 struct hdac_bus *bus;
350 struct hdac_ext_link *link;
351 struct hdac_stream *hstream;
352 struct snd_soc_pcm_runtime *rtd;
353 struct hdac_ext_stream *link_dev;
354 int ret;
355
356 hstream = substream->runtime->private_data;
357 bus = hstream->bus;
358 rtd = asoc_substream_to_rtd(substream);
359 link_dev = snd_soc_dai_get_dma_data(dai, substream);
360
361 if (!link_dev) {
362 dev_dbg(dai->dev,
363 "%s: link_dev is not assigned\n", __func__);
364 return -EINVAL;
365 }
366
367 hda_stream = hstream_to_sof_hda_stream(link_dev);
368
369 /* free the link DMA channel in the FW */
370 ret = hda_link_config_ipc(hda_stream, dai->name, DMA_CHAN_INVALID,
371 substream->stream);
372 if (ret < 0)
373 return ret;
374
375 link = snd_hdac_ext_bus_get_link(bus, asoc_rtd_to_codec(rtd, 0)->component->name);
376 if (!link)
377 return -EINVAL;
378
379 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
380 stream_tag = hdac_stream(link_dev)->stream_tag;
381 snd_hdac_ext_link_clear_stream_id(link, stream_tag);
382 }
383
384 snd_soc_dai_set_dma_data(dai, substream, NULL);
385 snd_hdac_ext_stream_release(link_dev, HDAC_EXT_STREAM_TYPE_LINK);
386 link_dev->link_prepared = 0;
387
388 /* free the host DMA channel reserved by hostless streams */
389 hda_stream->host_reserved = 0;
390
391 return 0;
392 }
393
394 static const struct snd_soc_dai_ops hda_link_dai_ops = {
395 .hw_params = hda_link_hw_params,
396 .hw_free = hda_link_hw_free,
397 .trigger = hda_link_pcm_trigger,
398 .prepare = hda_link_pcm_prepare,
399 };
400
401 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES)
402 #include "../compress.h"
403
404 static struct snd_soc_cdai_ops sof_probe_compr_ops = {
405 .startup = sof_probe_compr_open,
406 .shutdown = sof_probe_compr_free,
407 .set_params = sof_probe_compr_set_params,
408 .trigger = sof_probe_compr_trigger,
409 .pointer = sof_probe_compr_pointer,
410 };
411
412 #endif
413 #endif
414
415 /*
416 * common dai driver for skl+ platforms.
417 * some products who use this DAI array only physically have a subset of
418 * the DAIs, but no harm is done here by adding the whole set.
419 */
420 struct snd_soc_dai_driver skl_dai[] = {
421 {
422 .name = "SSP0 Pin",
423 .playback = {
424 .channels_min = 1,
425 .channels_max = 8,
426 },
427 .capture = {
428 .channels_min = 1,
429 .channels_max = 8,
430 },
431 },
432 {
433 .name = "SSP1 Pin",
434 .playback = {
435 .channels_min = 1,
436 .channels_max = 8,
437 },
438 .capture = {
439 .channels_min = 1,
440 .channels_max = 8,
441 },
442 },
443 {
444 .name = "SSP2 Pin",
445 .playback = {
446 .channels_min = 1,
447 .channels_max = 8,
448 },
449 .capture = {
450 .channels_min = 1,
451 .channels_max = 8,
452 },
453 },
454 {
455 .name = "SSP3 Pin",
456 .playback = {
457 .channels_min = 1,
458 .channels_max = 8,
459 },
460 .capture = {
461 .channels_min = 1,
462 .channels_max = 8,
463 },
464 },
465 {
466 .name = "SSP4 Pin",
467 .playback = {
468 .channels_min = 1,
469 .channels_max = 8,
470 },
471 .capture = {
472 .channels_min = 1,
473 .channels_max = 8,
474 },
475 },
476 {
477 .name = "SSP5 Pin",
478 .playback = {
479 .channels_min = 1,
480 .channels_max = 8,
481 },
482 .capture = {
483 .channels_min = 1,
484 .channels_max = 8,
485 },
486 },
487 {
488 .name = "DMIC01 Pin",
489 .capture = {
490 .channels_min = 1,
491 .channels_max = 4,
492 },
493 },
494 {
495 .name = "DMIC16k Pin",
496 .capture = {
497 .channels_min = 1,
498 .channels_max = 4,
499 },
500 },
501 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
502 {
503 .name = "iDisp1 Pin",
504 .ops = &hda_link_dai_ops,
505 .playback = {
506 .channels_min = 1,
507 .channels_max = 8,
508 },
509 },
510 {
511 .name = "iDisp2 Pin",
512 .ops = &hda_link_dai_ops,
513 .playback = {
514 .channels_min = 1,
515 .channels_max = 8,
516 },
517 },
518 {
519 .name = "iDisp3 Pin",
520 .ops = &hda_link_dai_ops,
521 .playback = {
522 .channels_min = 1,
523 .channels_max = 8,
524 },
525 },
526 {
527 .name = "iDisp4 Pin",
528 .ops = &hda_link_dai_ops,
529 .playback = {
530 .channels_min = 1,
531 .channels_max = 8,
532 },
533 },
534 {
535 .name = "Analog CPU DAI",
536 .ops = &hda_link_dai_ops,
537 .playback = {
538 .channels_min = 1,
539 .channels_max = 16,
540 },
541 .capture = {
542 .channels_min = 1,
543 .channels_max = 16,
544 },
545 },
546 {
547 .name = "Digital CPU DAI",
548 .ops = &hda_link_dai_ops,
549 .playback = {
550 .channels_min = 1,
551 .channels_max = 16,
552 },
553 .capture = {
554 .channels_min = 1,
555 .channels_max = 16,
556 },
557 },
558 {
559 .name = "Alt Analog CPU DAI",
560 .ops = &hda_link_dai_ops,
561 .playback = {
562 .channels_min = 1,
563 .channels_max = 16,
564 },
565 .capture = {
566 .channels_min = 1,
567 .channels_max = 16,
568 },
569 },
570 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES)
571 {
572 .name = "Probe Extraction CPU DAI",
573 .compress_new = snd_soc_new_compress,
574 .cops = &sof_probe_compr_ops,
575 .capture = {
576 .stream_name = "Probe Extraction",
577 .channels_min = 1,
578 .channels_max = 8,
579 .rates = SNDRV_PCM_RATE_48000,
580 .rate_min = 48000,
581 .rate_max = 48000,
582 },
583 },
584 #endif
585 #endif
586 };
587