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Merge remote-tracking branch 'regmap/for-next'
[deliverable/linux.git] / sound / soc / intel / skylake / skl-pcm.c
1 /*
2 * skl-pcm.c -ASoC HDA Platform driver file implementing PCM functionality
3 *
4 * Copyright (C) 2014-2015 Intel Corp
5 * Author: Jeeja KP <jeeja.kp@intel.com>
6 *
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19 *
20 */
21
22 #include <linux/pci.h>
23 #include <linux/pm_runtime.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include "skl.h"
27 #include "skl-topology.h"
28 #include "skl-sst-dsp.h"
29 #include "skl-sst-ipc.h"
30
31 #define HDA_MONO 1
32 #define HDA_STEREO 2
33 #define HDA_QUAD 4
34
35 static struct snd_pcm_hardware azx_pcm_hw = {
36 .info = (SNDRV_PCM_INFO_MMAP |
37 SNDRV_PCM_INFO_INTERLEAVED |
38 SNDRV_PCM_INFO_BLOCK_TRANSFER |
39 SNDRV_PCM_INFO_MMAP_VALID |
40 SNDRV_PCM_INFO_PAUSE |
41 SNDRV_PCM_INFO_RESUME |
42 SNDRV_PCM_INFO_SYNC_START |
43 SNDRV_PCM_INFO_HAS_WALL_CLOCK | /* legacy */
44 SNDRV_PCM_INFO_HAS_LINK_ATIME |
45 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP),
46 .formats = SNDRV_PCM_FMTBIT_S16_LE |
47 SNDRV_PCM_FMTBIT_S32_LE |
48 SNDRV_PCM_FMTBIT_S24_LE,
49 .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000 |
50 SNDRV_PCM_RATE_8000,
51 .rate_min = 8000,
52 .rate_max = 48000,
53 .channels_min = 1,
54 .channels_max = 8,
55 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
56 .period_bytes_min = 128,
57 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
58 .periods_min = 2,
59 .periods_max = AZX_MAX_FRAG,
60 .fifo_size = 0,
61 };
62
63 static inline
64 struct hdac_ext_stream *get_hdac_ext_stream(struct snd_pcm_substream *substream)
65 {
66 return substream->runtime->private_data;
67 }
68
69 static struct hdac_ext_bus *get_bus_ctx(struct snd_pcm_substream *substream)
70 {
71 struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
72 struct hdac_stream *hstream = hdac_stream(stream);
73 struct hdac_bus *bus = hstream->bus;
74
75 return hbus_to_ebus(bus);
76 }
77
78 static int skl_substream_alloc_pages(struct hdac_ext_bus *ebus,
79 struct snd_pcm_substream *substream,
80 size_t size)
81 {
82 struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
83
84 hdac_stream(stream)->bufsize = 0;
85 hdac_stream(stream)->period_bytes = 0;
86 hdac_stream(stream)->format_val = 0;
87
88 return snd_pcm_lib_malloc_pages(substream, size);
89 }
90
91 static int skl_substream_free_pages(struct hdac_bus *bus,
92 struct snd_pcm_substream *substream)
93 {
94 return snd_pcm_lib_free_pages(substream);
95 }
96
97 static void skl_set_pcm_constrains(struct hdac_ext_bus *ebus,
98 struct snd_pcm_runtime *runtime)
99 {
100 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
101
102 /* avoid wrap-around with wall-clock */
103 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_TIME,
104 20, 178000000);
105 }
106
107 static enum hdac_ext_stream_type skl_get_host_stream_type(struct hdac_ext_bus *ebus)
108 {
109 if (ebus->ppcap)
110 return HDAC_EXT_STREAM_TYPE_HOST;
111 else
112 return HDAC_EXT_STREAM_TYPE_COUPLED;
113 }
114
115 /*
116 * check if the stream opened is marked as ignore_suspend by machine, if so
117 * then enable suspend_active refcount
118 *
119 * The count supend_active does not need lock as it is used in open/close
120 * and suspend context
121 */
122 static void skl_set_suspend_active(struct snd_pcm_substream *substream,
123 struct snd_soc_dai *dai, bool enable)
124 {
125 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
126 struct snd_soc_dapm_widget *w;
127 struct skl *skl = ebus_to_skl(ebus);
128
129 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
130 w = dai->playback_widget;
131 else
132 w = dai->capture_widget;
133
134 if (w->ignore_suspend && enable)
135 skl->supend_active++;
136 else if (w->ignore_suspend && !enable)
137 skl->supend_active--;
138 }
139
140 static int skl_pcm_open(struct snd_pcm_substream *substream,
141 struct snd_soc_dai *dai)
142 {
143 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
144 struct hdac_ext_stream *stream;
145 struct snd_pcm_runtime *runtime = substream->runtime;
146 struct skl_dma_params *dma_params;
147
148 dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
149
150 stream = snd_hdac_ext_stream_assign(ebus, substream,
151 skl_get_host_stream_type(ebus));
152 if (stream == NULL)
153 return -EBUSY;
154
155 skl_set_pcm_constrains(ebus, runtime);
156
157 /*
158 * disable WALLCLOCK timestamps for capture streams
159 * until we figure out how to handle digital inputs
160 */
161 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
162 runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_WALL_CLOCK; /* legacy */
163 runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_LINK_ATIME;
164 }
165
166 runtime->private_data = stream;
167
168 dma_params = kzalloc(sizeof(*dma_params), GFP_KERNEL);
169 if (!dma_params)
170 return -ENOMEM;
171
172 dma_params->stream_tag = hdac_stream(stream)->stream_tag;
173 snd_soc_dai_set_dma_data(dai, substream, dma_params);
174
175 dev_dbg(dai->dev, "stream tag set in dma params=%d\n",
176 dma_params->stream_tag);
177 skl_set_suspend_active(substream, dai, true);
178 snd_pcm_set_sync(substream);
179
180 return 0;
181 }
182
183 static int skl_get_format(struct snd_pcm_substream *substream,
184 struct snd_soc_dai *dai)
185 {
186 struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
187 struct skl_dma_params *dma_params;
188 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
189 int format_val = 0;
190
191 if (ebus->ppcap) {
192 struct snd_pcm_runtime *runtime = substream->runtime;
193
194 format_val = snd_hdac_calc_stream_format(runtime->rate,
195 runtime->channels,
196 runtime->format,
197 32, 0);
198 } else {
199 struct snd_soc_dai *codec_dai = rtd->codec_dai;
200
201 dma_params = snd_soc_dai_get_dma_data(codec_dai, substream);
202 if (dma_params)
203 format_val = dma_params->format;
204 }
205
206 return format_val;
207 }
208
209 static int skl_be_prepare(struct snd_pcm_substream *substream,
210 struct snd_soc_dai *dai)
211 {
212 struct skl *skl = get_skl_ctx(dai->dev);
213 struct skl_sst *ctx = skl->skl_sst;
214 struct skl_module_cfg *mconfig;
215
216 if (dai->playback_widget->power || dai->capture_widget->power)
217 return 0;
218
219 mconfig = skl_tplg_be_get_cpr_module(dai, substream->stream);
220 if (mconfig == NULL)
221 return -EINVAL;
222
223 return skl_dsp_set_dma_control(ctx, mconfig);
224 }
225
226 static int skl_pcm_prepare(struct snd_pcm_substream *substream,
227 struct snd_soc_dai *dai)
228 {
229 struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
230 struct skl *skl = get_skl_ctx(dai->dev);
231 unsigned int format_val;
232 int err;
233 struct skl_module_cfg *mconfig;
234
235 dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
236
237 mconfig = skl_tplg_fe_get_cpr_module(dai, substream->stream);
238
239 format_val = skl_get_format(substream, dai);
240 dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d\n",
241 hdac_stream(stream)->stream_tag, format_val);
242 snd_hdac_stream_reset(hdac_stream(stream));
243
244 /* In case of XRUN recovery, reset the FW pipe to clean state */
245 if (mconfig && (substream->runtime->status->state ==
246 SNDRV_PCM_STATE_XRUN))
247 skl_reset_pipe(skl->skl_sst, mconfig->pipe);
248
249 err = snd_hdac_stream_set_params(hdac_stream(stream), format_val);
250 if (err < 0)
251 return err;
252
253 err = snd_hdac_stream_setup(hdac_stream(stream));
254 if (err < 0)
255 return err;
256
257 hdac_stream(stream)->prepared = 1;
258
259 return err;
260 }
261
262 static int skl_pcm_hw_params(struct snd_pcm_substream *substream,
263 struct snd_pcm_hw_params *params,
264 struct snd_soc_dai *dai)
265 {
266 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
267 struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
268 struct snd_pcm_runtime *runtime = substream->runtime;
269 struct skl_pipe_params p_params = {0};
270 struct skl_module_cfg *m_cfg;
271 int ret, dma_id;
272
273 dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
274 ret = skl_substream_alloc_pages(ebus, substream,
275 params_buffer_bytes(params));
276 if (ret < 0)
277 return ret;
278
279 dev_dbg(dai->dev, "format_val, rate=%d, ch=%d, format=%d\n",
280 runtime->rate, runtime->channels, runtime->format);
281
282 dma_id = hdac_stream(stream)->stream_tag - 1;
283 dev_dbg(dai->dev, "dma_id=%d\n", dma_id);
284
285 p_params.s_fmt = snd_pcm_format_width(params_format(params));
286 p_params.ch = params_channels(params);
287 p_params.s_freq = params_rate(params);
288 p_params.host_dma_id = dma_id;
289 p_params.stream = substream->stream;
290
291 m_cfg = skl_tplg_fe_get_cpr_module(dai, p_params.stream);
292 if (m_cfg)
293 skl_tplg_update_pipe_params(dai->dev, m_cfg, &p_params);
294
295 return 0;
296 }
297
298 static void skl_pcm_close(struct snd_pcm_substream *substream,
299 struct snd_soc_dai *dai)
300 {
301 struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
302 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
303 struct skl_dma_params *dma_params = NULL;
304 struct skl *skl = ebus_to_skl(ebus);
305
306 dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
307
308 snd_hdac_ext_stream_release(stream, skl_get_host_stream_type(ebus));
309
310 dma_params = snd_soc_dai_get_dma_data(dai, substream);
311 /*
312 * now we should set this to NULL as we are freeing by the
313 * dma_params
314 */
315 snd_soc_dai_set_dma_data(dai, substream, NULL);
316 skl_set_suspend_active(substream, dai, false);
317
318 /*
319 * check if close is for "Reference Pin" and set back the
320 * CGCTL.MISCBDCGE if disabled by driver
321 */
322 if (!strncmp(dai->name, "Reference Pin", 13) &&
323 skl->skl_sst->miscbdcg_disabled) {
324 skl->skl_sst->enable_miscbdcge(dai->dev, true);
325 skl->skl_sst->miscbdcg_disabled = false;
326 }
327
328 kfree(dma_params);
329 }
330
331 static int skl_pcm_hw_free(struct snd_pcm_substream *substream,
332 struct snd_soc_dai *dai)
333 {
334 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
335 struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
336
337 dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
338
339 snd_hdac_stream_cleanup(hdac_stream(stream));
340 hdac_stream(stream)->prepared = 0;
341
342 return skl_substream_free_pages(ebus_to_hbus(ebus), substream);
343 }
344
345 static int skl_be_hw_params(struct snd_pcm_substream *substream,
346 struct snd_pcm_hw_params *params,
347 struct snd_soc_dai *dai)
348 {
349 struct skl_pipe_params p_params = {0};
350
351 p_params.s_fmt = snd_pcm_format_width(params_format(params));
352 p_params.ch = params_channels(params);
353 p_params.s_freq = params_rate(params);
354 p_params.stream = substream->stream;
355
356 return skl_tplg_be_update_params(dai, &p_params);
357 }
358
359 static int skl_decoupled_trigger(struct snd_pcm_substream *substream,
360 int cmd)
361 {
362 struct hdac_ext_bus *ebus = get_bus_ctx(substream);
363 struct hdac_bus *bus = ebus_to_hbus(ebus);
364 struct hdac_ext_stream *stream;
365 int start;
366 unsigned long cookie;
367 struct hdac_stream *hstr;
368
369 stream = get_hdac_ext_stream(substream);
370 hstr = hdac_stream(stream);
371
372 if (!hstr->prepared)
373 return -EPIPE;
374
375 switch (cmd) {
376 case SNDRV_PCM_TRIGGER_START:
377 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
378 case SNDRV_PCM_TRIGGER_RESUME:
379 start = 1;
380 break;
381
382 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
383 case SNDRV_PCM_TRIGGER_SUSPEND:
384 case SNDRV_PCM_TRIGGER_STOP:
385 start = 0;
386 break;
387
388 default:
389 return -EINVAL;
390 }
391
392 spin_lock_irqsave(&bus->reg_lock, cookie);
393
394 if (start) {
395 snd_hdac_stream_start(hdac_stream(stream), true);
396 snd_hdac_stream_timecounter_init(hstr, 0);
397 } else {
398 snd_hdac_stream_stop(hdac_stream(stream));
399 }
400
401 spin_unlock_irqrestore(&bus->reg_lock, cookie);
402
403 return 0;
404 }
405
406 static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
407 struct snd_soc_dai *dai)
408 {
409 struct skl *skl = get_skl_ctx(dai->dev);
410 struct skl_sst *ctx = skl->skl_sst;
411 struct skl_module_cfg *mconfig;
412 struct hdac_ext_bus *ebus = get_bus_ctx(substream);
413 struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
414 struct snd_soc_dapm_widget *w;
415 int ret;
416
417 mconfig = skl_tplg_fe_get_cpr_module(dai, substream->stream);
418 if (!mconfig)
419 return -EIO;
420
421 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
422 w = dai->playback_widget;
423 else
424 w = dai->capture_widget;
425
426 switch (cmd) {
427 case SNDRV_PCM_TRIGGER_RESUME:
428 if (!w->ignore_suspend) {
429 skl_pcm_prepare(substream, dai);
430 /*
431 * enable DMA Resume enable bit for the stream, set the
432 * dpib & lpib position to resume before starting the
433 * DMA
434 */
435 snd_hdac_ext_stream_drsm_enable(ebus, true,
436 hdac_stream(stream)->index);
437 snd_hdac_ext_stream_set_dpibr(ebus, stream,
438 stream->dpib);
439 snd_hdac_ext_stream_set_lpib(stream, stream->lpib);
440 }
441
442 case SNDRV_PCM_TRIGGER_START:
443 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
444 /*
445 * Start HOST DMA and Start FE Pipe.This is to make sure that
446 * there are no underrun/overrun in the case when the FE
447 * pipeline is started but there is a delay in starting the
448 * DMA channel on the host.
449 */
450 snd_hdac_ext_stream_decouple(ebus, stream, true);
451 ret = skl_decoupled_trigger(substream, cmd);
452 if (ret < 0)
453 return ret;
454 return skl_run_pipe(ctx, mconfig->pipe);
455 break;
456
457 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
458 case SNDRV_PCM_TRIGGER_SUSPEND:
459 case SNDRV_PCM_TRIGGER_STOP:
460 /*
461 * Stop FE Pipe first and stop DMA. This is to make sure that
462 * there are no underrun/overrun in the case if there is a delay
463 * between the two operations.
464 */
465 ret = skl_stop_pipe(ctx, mconfig->pipe);
466 if (ret < 0)
467 return ret;
468
469 ret = skl_decoupled_trigger(substream, cmd);
470 if ((cmd == SNDRV_PCM_TRIGGER_SUSPEND) && !w->ignore_suspend) {
471 /* save the dpib and lpib positions */
472 stream->dpib = readl(ebus->bus.remap_addr +
473 AZX_REG_VS_SDXDPIB_XBASE +
474 (AZX_REG_VS_SDXDPIB_XINTERVAL *
475 hdac_stream(stream)->index));
476
477 stream->lpib = snd_hdac_stream_get_pos_lpib(
478 hdac_stream(stream));
479 snd_hdac_ext_stream_decouple(ebus, stream, false);
480 }
481 break;
482
483 default:
484 return -EINVAL;
485 }
486
487 return 0;
488 }
489
490 static int skl_link_hw_params(struct snd_pcm_substream *substream,
491 struct snd_pcm_hw_params *params,
492 struct snd_soc_dai *dai)
493 {
494 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
495 struct hdac_ext_stream *link_dev;
496 struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
497 struct hdac_ext_dma_params *dma_params;
498 struct snd_soc_dai *codec_dai = rtd->codec_dai;
499 struct skl_pipe_params p_params = {0};
500
501 link_dev = snd_hdac_ext_stream_assign(ebus, substream,
502 HDAC_EXT_STREAM_TYPE_LINK);
503 if (!link_dev)
504 return -EBUSY;
505
506 snd_soc_dai_set_dma_data(dai, substream, (void *)link_dev);
507
508 /* set the stream tag in the codec dai dma params */
509 dma_params = snd_soc_dai_get_dma_data(codec_dai, substream);
510 if (dma_params)
511 dma_params->stream_tag = hdac_stream(link_dev)->stream_tag;
512
513 p_params.s_fmt = snd_pcm_format_width(params_format(params));
514 p_params.ch = params_channels(params);
515 p_params.s_freq = params_rate(params);
516 p_params.stream = substream->stream;
517 p_params.link_dma_id = hdac_stream(link_dev)->stream_tag - 1;
518
519 return skl_tplg_be_update_params(dai, &p_params);
520 }
521
522 static int skl_link_pcm_prepare(struct snd_pcm_substream *substream,
523 struct snd_soc_dai *dai)
524 {
525 struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
526 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
527 struct hdac_ext_stream *link_dev =
528 snd_soc_dai_get_dma_data(dai, substream);
529 unsigned int format_val = 0;
530 struct skl_dma_params *dma_params;
531 struct snd_soc_dai *codec_dai = rtd->codec_dai;
532 struct hdac_ext_link *link;
533 struct skl *skl = get_skl_ctx(dai->dev);
534 struct skl_module_cfg *mconfig = NULL;
535
536 dma_params = (struct skl_dma_params *)
537 snd_soc_dai_get_dma_data(codec_dai, substream);
538 if (dma_params)
539 format_val = dma_params->format;
540 dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d codec_dai_name=%s\n",
541 hdac_stream(link_dev)->stream_tag, format_val, codec_dai->name);
542
543 link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name);
544 if (!link)
545 return -EINVAL;
546
547 snd_hdac_ext_link_stream_reset(link_dev);
548
549 /* In case of XRUN recovery, reset the FW pipe to clean state */
550 mconfig = skl_tplg_be_get_cpr_module(dai, substream->stream);
551 if (mconfig && (substream->runtime->status->state ==
552 SNDRV_PCM_STATE_XRUN))
553 skl_reset_pipe(skl->skl_sst, mconfig->pipe);
554
555 snd_hdac_ext_link_stream_setup(link_dev, format_val);
556
557 snd_hdac_ext_link_set_stream_id(link, hdac_stream(link_dev)->stream_tag);
558 link_dev->link_prepared = 1;
559
560 return 0;
561 }
562
563 static int skl_link_pcm_trigger(struct snd_pcm_substream *substream,
564 int cmd, struct snd_soc_dai *dai)
565 {
566 struct hdac_ext_stream *link_dev =
567 snd_soc_dai_get_dma_data(dai, substream);
568 struct hdac_ext_bus *ebus = get_bus_ctx(substream);
569 struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
570
571 dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd);
572 switch (cmd) {
573 case SNDRV_PCM_TRIGGER_RESUME:
574 skl_link_pcm_prepare(substream, dai);
575 case SNDRV_PCM_TRIGGER_START:
576 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
577 snd_hdac_ext_stream_decouple(ebus, stream, true);
578 snd_hdac_ext_link_stream_start(link_dev);
579 break;
580
581 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
582 case SNDRV_PCM_TRIGGER_SUSPEND:
583 case SNDRV_PCM_TRIGGER_STOP:
584 snd_hdac_ext_link_stream_clear(link_dev);
585 if (cmd == SNDRV_PCM_TRIGGER_SUSPEND)
586 snd_hdac_ext_stream_decouple(ebus, stream, false);
587 break;
588
589 default:
590 return -EINVAL;
591 }
592 return 0;
593 }
594
595 static int skl_link_hw_free(struct snd_pcm_substream *substream,
596 struct snd_soc_dai *dai)
597 {
598 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
599 struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
600 struct hdac_ext_stream *link_dev =
601 snd_soc_dai_get_dma_data(dai, substream);
602 struct hdac_ext_link *link;
603
604 dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
605
606 link_dev->link_prepared = 0;
607
608 link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name);
609 if (!link)
610 return -EINVAL;
611
612 snd_hdac_ext_link_clear_stream_id(link, hdac_stream(link_dev)->stream_tag);
613 snd_hdac_ext_stream_release(link_dev, HDAC_EXT_STREAM_TYPE_LINK);
614 return 0;
615 }
616
617 static struct snd_soc_dai_ops skl_pcm_dai_ops = {
618 .startup = skl_pcm_open,
619 .shutdown = skl_pcm_close,
620 .prepare = skl_pcm_prepare,
621 .hw_params = skl_pcm_hw_params,
622 .hw_free = skl_pcm_hw_free,
623 .trigger = skl_pcm_trigger,
624 };
625
626 static struct snd_soc_dai_ops skl_dmic_dai_ops = {
627 .hw_params = skl_be_hw_params,
628 };
629
630 static struct snd_soc_dai_ops skl_be_ssp_dai_ops = {
631 .hw_params = skl_be_hw_params,
632 .prepare = skl_be_prepare,
633 };
634
635 static struct snd_soc_dai_ops skl_link_dai_ops = {
636 .prepare = skl_link_pcm_prepare,
637 .hw_params = skl_link_hw_params,
638 .hw_free = skl_link_hw_free,
639 .trigger = skl_link_pcm_trigger,
640 };
641
642 static struct snd_soc_dai_driver skl_platform_dai[] = {
643 {
644 .name = "System Pin",
645 .ops = &skl_pcm_dai_ops,
646 .playback = {
647 .stream_name = "System Playback",
648 .channels_min = HDA_MONO,
649 .channels_max = HDA_STEREO,
650 .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_8000,
651 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
652 },
653 .capture = {
654 .stream_name = "System Capture",
655 .channels_min = HDA_MONO,
656 .channels_max = HDA_STEREO,
657 .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
658 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
659 },
660 },
661 {
662 .name = "Reference Pin",
663 .ops = &skl_pcm_dai_ops,
664 .capture = {
665 .stream_name = "Reference Capture",
666 .channels_min = HDA_MONO,
667 .channels_max = HDA_QUAD,
668 .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
669 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
670 },
671 },
672 {
673 .name = "Deepbuffer Pin",
674 .ops = &skl_pcm_dai_ops,
675 .playback = {
676 .stream_name = "Deepbuffer Playback",
677 .channels_min = HDA_STEREO,
678 .channels_max = HDA_STEREO,
679 .rates = SNDRV_PCM_RATE_48000,
680 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
681 },
682 },
683 {
684 .name = "LowLatency Pin",
685 .ops = &skl_pcm_dai_ops,
686 .playback = {
687 .stream_name = "Low Latency Playback",
688 .channels_min = HDA_STEREO,
689 .channels_max = HDA_STEREO,
690 .rates = SNDRV_PCM_RATE_48000,
691 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
692 },
693 },
694 {
695 .name = "DMIC Pin",
696 .ops = &skl_pcm_dai_ops,
697 .capture = {
698 .stream_name = "DMIC Capture",
699 .channels_min = HDA_MONO,
700 .channels_max = HDA_QUAD,
701 .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
702 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
703 },
704 },
705 {
706 .name = "HDMI1 Pin",
707 .ops = &skl_pcm_dai_ops,
708 .playback = {
709 .stream_name = "HDMI1 Playback",
710 .channels_min = HDA_STEREO,
711 .channels_max = 8,
712 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
713 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
714 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
715 SNDRV_PCM_RATE_192000,
716 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
717 SNDRV_PCM_FMTBIT_S32_LE,
718 },
719 },
720 {
721 .name = "HDMI2 Pin",
722 .ops = &skl_pcm_dai_ops,
723 .playback = {
724 .stream_name = "HDMI2 Playback",
725 .channels_min = HDA_STEREO,
726 .channels_max = 8,
727 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
728 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
729 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
730 SNDRV_PCM_RATE_192000,
731 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
732 SNDRV_PCM_FMTBIT_S32_LE,
733 },
734 },
735 {
736 .name = "HDMI3 Pin",
737 .ops = &skl_pcm_dai_ops,
738 .playback = {
739 .stream_name = "HDMI3 Playback",
740 .channels_min = HDA_STEREO,
741 .channels_max = 8,
742 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
743 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
744 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
745 SNDRV_PCM_RATE_192000,
746 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
747 SNDRV_PCM_FMTBIT_S32_LE,
748 },
749 },
750
751 /* BE CPU Dais */
752 {
753 .name = "SSP0 Pin",
754 .ops = &skl_be_ssp_dai_ops,
755 .playback = {
756 .stream_name = "ssp0 Tx",
757 .channels_min = HDA_STEREO,
758 .channels_max = HDA_STEREO,
759 .rates = SNDRV_PCM_RATE_48000,
760 .formats = SNDRV_PCM_FMTBIT_S16_LE,
761 },
762 .capture = {
763 .stream_name = "ssp0 Rx",
764 .channels_min = HDA_STEREO,
765 .channels_max = HDA_STEREO,
766 .rates = SNDRV_PCM_RATE_48000,
767 .formats = SNDRV_PCM_FMTBIT_S16_LE,
768 },
769 },
770 {
771 .name = "SSP1 Pin",
772 .ops = &skl_be_ssp_dai_ops,
773 .playback = {
774 .stream_name = "ssp1 Tx",
775 .channels_min = HDA_STEREO,
776 .channels_max = HDA_STEREO,
777 .rates = SNDRV_PCM_RATE_48000,
778 .formats = SNDRV_PCM_FMTBIT_S16_LE,
779 },
780 .capture = {
781 .stream_name = "ssp1 Rx",
782 .channels_min = HDA_STEREO,
783 .channels_max = HDA_STEREO,
784 .rates = SNDRV_PCM_RATE_48000,
785 .formats = SNDRV_PCM_FMTBIT_S16_LE,
786 },
787 },
788 {
789 .name = "SSP2 Pin",
790 .ops = &skl_be_ssp_dai_ops,
791 .playback = {
792 .stream_name = "ssp2 Tx",
793 .channels_min = HDA_STEREO,
794 .channels_max = HDA_STEREO,
795 .rates = SNDRV_PCM_RATE_48000,
796 .formats = SNDRV_PCM_FMTBIT_S16_LE,
797 },
798 .capture = {
799 .stream_name = "ssp2 Rx",
800 .channels_min = HDA_STEREO,
801 .channels_max = HDA_STEREO,
802 .rates = SNDRV_PCM_RATE_48000,
803 .formats = SNDRV_PCM_FMTBIT_S16_LE,
804 },
805 },
806 {
807 .name = "SSP3 Pin",
808 .ops = &skl_be_ssp_dai_ops,
809 .playback = {
810 .stream_name = "ssp3 Tx",
811 .channels_min = HDA_STEREO,
812 .channels_max = HDA_STEREO,
813 .rates = SNDRV_PCM_RATE_48000,
814 .formats = SNDRV_PCM_FMTBIT_S16_LE,
815 },
816 .capture = {
817 .stream_name = "ssp3 Rx",
818 .channels_min = HDA_STEREO,
819 .channels_max = HDA_STEREO,
820 .rates = SNDRV_PCM_RATE_48000,
821 .formats = SNDRV_PCM_FMTBIT_S16_LE,
822 },
823 },
824 {
825 .name = "SSP4 Pin",
826 .ops = &skl_be_ssp_dai_ops,
827 .playback = {
828 .stream_name = "ssp4 Tx",
829 .channels_min = HDA_STEREO,
830 .channels_max = HDA_STEREO,
831 .rates = SNDRV_PCM_RATE_48000,
832 .formats = SNDRV_PCM_FMTBIT_S16_LE,
833 },
834 .capture = {
835 .stream_name = "ssp4 Rx",
836 .channels_min = HDA_STEREO,
837 .channels_max = HDA_STEREO,
838 .rates = SNDRV_PCM_RATE_48000,
839 .formats = SNDRV_PCM_FMTBIT_S16_LE,
840 },
841 },
842 {
843 .name = "SSP5 Pin",
844 .ops = &skl_be_ssp_dai_ops,
845 .playback = {
846 .stream_name = "ssp5 Tx",
847 .channels_min = HDA_STEREO,
848 .channels_max = HDA_STEREO,
849 .rates = SNDRV_PCM_RATE_48000,
850 .formats = SNDRV_PCM_FMTBIT_S16_LE,
851 },
852 .capture = {
853 .stream_name = "ssp5 Rx",
854 .channels_min = HDA_STEREO,
855 .channels_max = HDA_STEREO,
856 .rates = SNDRV_PCM_RATE_48000,
857 .formats = SNDRV_PCM_FMTBIT_S16_LE,
858 },
859 },
860 {
861 .name = "iDisp1 Pin",
862 .ops = &skl_link_dai_ops,
863 .playback = {
864 .stream_name = "iDisp1 Tx",
865 .channels_min = HDA_STEREO,
866 .channels_max = 8,
867 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000,
868 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE |
869 SNDRV_PCM_FMTBIT_S24_LE,
870 },
871 },
872 {
873 .name = "iDisp2 Pin",
874 .ops = &skl_link_dai_ops,
875 .playback = {
876 .stream_name = "iDisp2 Tx",
877 .channels_min = HDA_STEREO,
878 .channels_max = 8,
879 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|
880 SNDRV_PCM_RATE_48000,
881 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE |
882 SNDRV_PCM_FMTBIT_S24_LE,
883 },
884 },
885 {
886 .name = "iDisp3 Pin",
887 .ops = &skl_link_dai_ops,
888 .playback = {
889 .stream_name = "iDisp3 Tx",
890 .channels_min = HDA_STEREO,
891 .channels_max = 8,
892 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|
893 SNDRV_PCM_RATE_48000,
894 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE |
895 SNDRV_PCM_FMTBIT_S24_LE,
896 },
897 },
898 {
899 .name = "DMIC01 Pin",
900 .ops = &skl_dmic_dai_ops,
901 .capture = {
902 .stream_name = "DMIC01 Rx",
903 .channels_min = HDA_MONO,
904 .channels_max = HDA_QUAD,
905 .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
906 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
907 },
908 },
909 {
910 .name = "HD-Codec Pin",
911 .ops = &skl_link_dai_ops,
912 .playback = {
913 .stream_name = "HD-Codec Tx",
914 .channels_min = HDA_STEREO,
915 .channels_max = HDA_STEREO,
916 .rates = SNDRV_PCM_RATE_48000,
917 .formats = SNDRV_PCM_FMTBIT_S16_LE,
918 },
919 .capture = {
920 .stream_name = "HD-Codec Rx",
921 .channels_min = HDA_STEREO,
922 .channels_max = HDA_STEREO,
923 .rates = SNDRV_PCM_RATE_48000,
924 .formats = SNDRV_PCM_FMTBIT_S16_LE,
925 },
926 },
927 };
928
929 static int skl_platform_open(struct snd_pcm_substream *substream)
930 {
931 struct snd_pcm_runtime *runtime;
932 struct snd_soc_pcm_runtime *rtd = substream->private_data;
933 struct snd_soc_dai_link *dai_link = rtd->dai_link;
934
935 dev_dbg(rtd->cpu_dai->dev, "In %s:%s\n", __func__,
936 dai_link->cpu_dai_name);
937
938 runtime = substream->runtime;
939 snd_soc_set_runtime_hwparams(substream, &azx_pcm_hw);
940
941 return 0;
942 }
943
944 static int skl_coupled_trigger(struct snd_pcm_substream *substream,
945 int cmd)
946 {
947 struct hdac_ext_bus *ebus = get_bus_ctx(substream);
948 struct hdac_bus *bus = ebus_to_hbus(ebus);
949 struct hdac_ext_stream *stream;
950 struct snd_pcm_substream *s;
951 bool start;
952 int sbits = 0;
953 unsigned long cookie;
954 struct hdac_stream *hstr;
955
956 stream = get_hdac_ext_stream(substream);
957 hstr = hdac_stream(stream);
958
959 dev_dbg(bus->dev, "In %s cmd=%d\n", __func__, cmd);
960
961 if (!hstr->prepared)
962 return -EPIPE;
963
964 switch (cmd) {
965 case SNDRV_PCM_TRIGGER_START:
966 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
967 case SNDRV_PCM_TRIGGER_RESUME:
968 start = true;
969 break;
970
971 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
972 case SNDRV_PCM_TRIGGER_SUSPEND:
973 case SNDRV_PCM_TRIGGER_STOP:
974 start = false;
975 break;
976
977 default:
978 return -EINVAL;
979 }
980
981 snd_pcm_group_for_each_entry(s, substream) {
982 if (s->pcm->card != substream->pcm->card)
983 continue;
984 stream = get_hdac_ext_stream(s);
985 sbits |= 1 << hdac_stream(stream)->index;
986 snd_pcm_trigger_done(s, substream);
987 }
988
989 spin_lock_irqsave(&bus->reg_lock, cookie);
990
991 /* first, set SYNC bits of corresponding streams */
992 snd_hdac_stream_sync_trigger(hstr, true, sbits, AZX_REG_SSYNC);
993
994 snd_pcm_group_for_each_entry(s, substream) {
995 if (s->pcm->card != substream->pcm->card)
996 continue;
997 stream = get_hdac_ext_stream(s);
998 if (start)
999 snd_hdac_stream_start(hdac_stream(stream), true);
1000 else
1001 snd_hdac_stream_stop(hdac_stream(stream));
1002 }
1003 spin_unlock_irqrestore(&bus->reg_lock, cookie);
1004
1005 snd_hdac_stream_sync(hstr, start, sbits);
1006
1007 spin_lock_irqsave(&bus->reg_lock, cookie);
1008
1009 /* reset SYNC bits */
1010 snd_hdac_stream_sync_trigger(hstr, false, sbits, AZX_REG_SSYNC);
1011 if (start)
1012 snd_hdac_stream_timecounter_init(hstr, sbits);
1013 spin_unlock_irqrestore(&bus->reg_lock, cookie);
1014
1015 return 0;
1016 }
1017
1018 static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream,
1019 int cmd)
1020 {
1021 struct hdac_ext_bus *ebus = get_bus_ctx(substream);
1022
1023 if (!ebus->ppcap)
1024 return skl_coupled_trigger(substream, cmd);
1025
1026 return 0;
1027 }
1028
1029 static snd_pcm_uframes_t skl_platform_pcm_pointer
1030 (struct snd_pcm_substream *substream)
1031 {
1032 struct hdac_ext_stream *hstream = get_hdac_ext_stream(substream);
1033 unsigned int pos;
1034
1035 /* use the position buffer as default */
1036 pos = snd_hdac_stream_get_pos_posbuf(hdac_stream(hstream));
1037
1038 if (pos >= hdac_stream(hstream)->bufsize)
1039 pos = 0;
1040
1041 return bytes_to_frames(substream->runtime, pos);
1042 }
1043
1044 static u64 skl_adjust_codec_delay(struct snd_pcm_substream *substream,
1045 u64 nsec)
1046 {
1047 struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
1048 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1049 u64 codec_frames, codec_nsecs;
1050
1051 if (!codec_dai->driver->ops->delay)
1052 return nsec;
1053
1054 codec_frames = codec_dai->driver->ops->delay(substream, codec_dai);
1055 codec_nsecs = div_u64(codec_frames * 1000000000LL,
1056 substream->runtime->rate);
1057
1058 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
1059 return nsec + codec_nsecs;
1060
1061 return (nsec > codec_nsecs) ? nsec - codec_nsecs : 0;
1062 }
1063
1064 static int skl_get_time_info(struct snd_pcm_substream *substream,
1065 struct timespec *system_ts, struct timespec *audio_ts,
1066 struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
1067 struct snd_pcm_audio_tstamp_report *audio_tstamp_report)
1068 {
1069 struct hdac_ext_stream *sstream = get_hdac_ext_stream(substream);
1070 struct hdac_stream *hstr = hdac_stream(sstream);
1071 u64 nsec;
1072
1073 if ((substream->runtime->hw.info & SNDRV_PCM_INFO_HAS_LINK_ATIME) &&
1074 (audio_tstamp_config->type_requested == SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK)) {
1075
1076 snd_pcm_gettime(substream->runtime, system_ts);
1077
1078 nsec = timecounter_read(&hstr->tc);
1079 nsec = div_u64(nsec, 3); /* can be optimized */
1080 if (audio_tstamp_config->report_delay)
1081 nsec = skl_adjust_codec_delay(substream, nsec);
1082
1083 *audio_ts = ns_to_timespec(nsec);
1084
1085 audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK;
1086 audio_tstamp_report->accuracy_report = 1; /* rest of struct is valid */
1087 audio_tstamp_report->accuracy = 42; /* 24MHzWallClk == 42ns resolution */
1088
1089 } else {
1090 audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT;
1091 }
1092
1093 return 0;
1094 }
1095
1096 static struct snd_pcm_ops skl_platform_ops = {
1097 .open = skl_platform_open,
1098 .ioctl = snd_pcm_lib_ioctl,
1099 .trigger = skl_platform_pcm_trigger,
1100 .pointer = skl_platform_pcm_pointer,
1101 .get_time_info = skl_get_time_info,
1102 .mmap = snd_pcm_lib_default_mmap,
1103 .page = snd_pcm_sgbuf_ops_page,
1104 };
1105
1106 static void skl_pcm_free(struct snd_pcm *pcm)
1107 {
1108 snd_pcm_lib_preallocate_free_for_all(pcm);
1109 }
1110
1111 #define MAX_PREALLOC_SIZE (32 * 1024 * 1024)
1112
1113 static int skl_pcm_new(struct snd_soc_pcm_runtime *rtd)
1114 {
1115 struct snd_soc_dai *dai = rtd->cpu_dai;
1116 struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
1117 struct snd_pcm *pcm = rtd->pcm;
1118 unsigned int size;
1119 int retval = 0;
1120 struct skl *skl = ebus_to_skl(ebus);
1121
1122 if (dai->driver->playback.channels_min ||
1123 dai->driver->capture.channels_min) {
1124 /* buffer pre-allocation */
1125 size = CONFIG_SND_HDA_PREALLOC_SIZE * 1024;
1126 if (size > MAX_PREALLOC_SIZE)
1127 size = MAX_PREALLOC_SIZE;
1128 retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
1129 SNDRV_DMA_TYPE_DEV_SG,
1130 snd_dma_pci_data(skl->pci),
1131 size, MAX_PREALLOC_SIZE);
1132 if (retval) {
1133 dev_err(dai->dev, "dma buffer allocationf fail\n");
1134 return retval;
1135 }
1136 }
1137
1138 return retval;
1139 }
1140
1141 static int skl_platform_soc_probe(struct snd_soc_platform *platform)
1142 {
1143 struct hdac_ext_bus *ebus = dev_get_drvdata(platform->dev);
1144 struct skl *skl = ebus_to_skl(ebus);
1145 int ret;
1146
1147 if (ebus->ppcap) {
1148 ret = skl_tplg_init(platform, ebus);
1149 if (ret < 0) {
1150 dev_err(platform->dev, "Failed to init topology!\n");
1151 return ret;
1152 }
1153 skl->platform = platform;
1154 }
1155
1156 return 0;
1157 }
1158 static struct snd_soc_platform_driver skl_platform_drv = {
1159 .probe = skl_platform_soc_probe,
1160 .ops = &skl_platform_ops,
1161 .pcm_new = skl_pcm_new,
1162 .pcm_free = skl_pcm_free,
1163 };
1164
1165 static const struct snd_soc_component_driver skl_component = {
1166 .name = "pcm",
1167 };
1168
1169 int skl_platform_register(struct device *dev)
1170 {
1171 int ret;
1172 struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
1173 struct skl *skl = ebus_to_skl(ebus);
1174
1175 INIT_LIST_HEAD(&skl->ppl_list);
1176
1177 ret = snd_soc_register_platform(dev, &skl_platform_drv);
1178 if (ret) {
1179 dev_err(dev, "soc platform registration failed %d\n", ret);
1180 return ret;
1181 }
1182 ret = snd_soc_register_component(dev, &skl_component,
1183 skl_platform_dai,
1184 ARRAY_SIZE(skl_platform_dai));
1185 if (ret) {
1186 dev_err(dev, "soc component registration failed %d\n", ret);
1187 snd_soc_unregister_platform(dev);
1188 }
1189
1190 return ret;
1191
1192 }
1193
1194 int skl_platform_unregister(struct device *dev)
1195 {
1196 snd_soc_unregister_component(dev);
1197 snd_soc_unregister_platform(dev);
1198 return 0;
1199 }
Linux kernel - Deliverables
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