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ASoC: Intel: Skylake: Initialize and load DSP controls
[deliverable/linux.git] / sound / soc / intel / skylake / skl-topology.c
1 /*
2 * skl-topology.c - Implements Platform component ALSA controls/widget
3 * handlers.
4 *
5 * Copyright (C) 2014-2015 Intel Corp
6 * Author: Jeeja KP <jeeja.kp@intel.com>
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 version 2, as
11 * published by the Free Software Foundation.
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 #include <linux/slab.h>
20 #include <linux/types.h>
21 #include <linux/firmware.h>
22 #include <sound/soc.h>
23 #include <sound/soc-topology.h>
24 #include "skl-sst-dsp.h"
25 #include "skl-sst-ipc.h"
26 #include "skl-topology.h"
27 #include "skl.h"
28 #include "skl-tplg-interface.h"
29
30 #define SKL_CH_FIXUP_MASK (1 << 0)
31 #define SKL_RATE_FIXUP_MASK (1 << 1)
32 #define SKL_FMT_FIXUP_MASK (1 << 2)
33
34 /*
35 * SKL DSP driver modelling uses only few DAPM widgets so for rest we will
36 * ignore. This helpers checks if the SKL driver handles this widget type
37 */
38 static int is_skl_dsp_widget_type(struct snd_soc_dapm_widget *w)
39 {
40 switch (w->id) {
41 case snd_soc_dapm_dai_link:
42 case snd_soc_dapm_dai_in:
43 case snd_soc_dapm_aif_in:
44 case snd_soc_dapm_aif_out:
45 case snd_soc_dapm_dai_out:
46 case snd_soc_dapm_switch:
47 return false;
48 default:
49 return true;
50 }
51 }
52
53 /*
54 * Each pipelines needs memory to be allocated. Check if we have free memory
55 * from available pool. Then only add this to pool
56 * This is freed when pipe is deleted
57 * Note: DSP does actual memory management we only keep track for complete
58 * pool
59 */
60 static bool skl_tplg_alloc_pipe_mem(struct skl *skl,
61 struct skl_module_cfg *mconfig)
62 {
63 struct skl_sst *ctx = skl->skl_sst;
64
65 if (skl->resource.mem + mconfig->pipe->memory_pages >
66 skl->resource.max_mem) {
67 dev_err(ctx->dev,
68 "%s: module_id %d instance %d\n", __func__,
69 mconfig->id.module_id,
70 mconfig->id.instance_id);
71 dev_err(ctx->dev,
72 "exceeds ppl memory available %d mem %d\n",
73 skl->resource.max_mem, skl->resource.mem);
74 return false;
75 }
76
77 skl->resource.mem += mconfig->pipe->memory_pages;
78 return true;
79 }
80
81 /*
82 * Pipeline needs needs DSP CPU resources for computation, this is
83 * quantified in MCPS (Million Clocks Per Second) required for module/pipe
84 *
85 * Each pipelines needs mcps to be allocated. Check if we have mcps for this
86 * pipe. This adds the mcps to driver counter
87 * This is removed on pipeline delete
88 */
89 static bool skl_tplg_alloc_pipe_mcps(struct skl *skl,
90 struct skl_module_cfg *mconfig)
91 {
92 struct skl_sst *ctx = skl->skl_sst;
93
94 if (skl->resource.mcps + mconfig->mcps > skl->resource.max_mcps) {
95 dev_err(ctx->dev,
96 "%s: module_id %d instance %d\n", __func__,
97 mconfig->id.module_id, mconfig->id.instance_id);
98 dev_err(ctx->dev,
99 "exceeds ppl memory available %d > mem %d\n",
100 skl->resource.max_mcps, skl->resource.mcps);
101 return false;
102 }
103
104 skl->resource.mcps += mconfig->mcps;
105 return true;
106 }
107
108 /*
109 * Free the mcps when tearing down
110 */
111 static void
112 skl_tplg_free_pipe_mcps(struct skl *skl, struct skl_module_cfg *mconfig)
113 {
114 skl->resource.mcps -= mconfig->mcps;
115 }
116
117 /*
118 * Free the memory when tearing down
119 */
120 static void
121 skl_tplg_free_pipe_mem(struct skl *skl, struct skl_module_cfg *mconfig)
122 {
123 skl->resource.mem -= mconfig->pipe->memory_pages;
124 }
125
126
127 static void skl_dump_mconfig(struct skl_sst *ctx,
128 struct skl_module_cfg *mcfg)
129 {
130 dev_dbg(ctx->dev, "Dumping config\n");
131 dev_dbg(ctx->dev, "Input Format:\n");
132 dev_dbg(ctx->dev, "channels = %d\n", mcfg->in_fmt.channels);
133 dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->in_fmt.s_freq);
134 dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->in_fmt.ch_cfg);
135 dev_dbg(ctx->dev, "valid bit depth = %d\n",
136 mcfg->in_fmt.valid_bit_depth);
137 dev_dbg(ctx->dev, "Output Format:\n");
138 dev_dbg(ctx->dev, "channels = %d\n", mcfg->out_fmt.channels);
139 dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->out_fmt.s_freq);
140 dev_dbg(ctx->dev, "valid bit depth = %d\n",
141 mcfg->out_fmt.valid_bit_depth);
142 dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->out_fmt.ch_cfg);
143 }
144
145 static void skl_tplg_update_params(struct skl_module_fmt *fmt,
146 struct skl_pipe_params *params, int fixup)
147 {
148 if (fixup & SKL_RATE_FIXUP_MASK)
149 fmt->s_freq = params->s_freq;
150 if (fixup & SKL_CH_FIXUP_MASK)
151 fmt->channels = params->ch;
152 if (fixup & SKL_FMT_FIXUP_MASK)
153 fmt->valid_bit_depth = params->s_fmt;
154 }
155
156 /*
157 * A pipeline may have modules which impact the pcm parameters, like SRC,
158 * channel converter, format converter.
159 * We need to calculate the output params by applying the 'fixup'
160 * Topology will tell driver which type of fixup is to be applied by
161 * supplying the fixup mask, so based on that we calculate the output
162 *
163 * Now In FE the pcm hw_params is source/target format. Same is applicable
164 * for BE with its hw_params invoked.
165 * here based on FE, BE pipeline and direction we calculate the input and
166 * outfix and then apply that for a module
167 */
168 static void skl_tplg_update_params_fixup(struct skl_module_cfg *m_cfg,
169 struct skl_pipe_params *params, bool is_fe)
170 {
171 int in_fixup, out_fixup;
172 struct skl_module_fmt *in_fmt, *out_fmt;
173
174 in_fmt = &m_cfg->in_fmt;
175 out_fmt = &m_cfg->out_fmt;
176
177 if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
178 if (is_fe) {
179 in_fixup = m_cfg->params_fixup;
180 out_fixup = (~m_cfg->converter) &
181 m_cfg->params_fixup;
182 } else {
183 out_fixup = m_cfg->params_fixup;
184 in_fixup = (~m_cfg->converter) &
185 m_cfg->params_fixup;
186 }
187 } else {
188 if (is_fe) {
189 out_fixup = m_cfg->params_fixup;
190 in_fixup = (~m_cfg->converter) &
191 m_cfg->params_fixup;
192 } else {
193 in_fixup = m_cfg->params_fixup;
194 out_fixup = (~m_cfg->converter) &
195 m_cfg->params_fixup;
196 }
197 }
198
199 skl_tplg_update_params(in_fmt, params, in_fixup);
200 skl_tplg_update_params(out_fmt, params, out_fixup);
201 }
202
203 /*
204 * A module needs input and output buffers, which are dependent upon pcm
205 * params, so once we have calculate params, we need buffer calculation as
206 * well.
207 */
208 static void skl_tplg_update_buffer_size(struct skl_sst *ctx,
209 struct skl_module_cfg *mcfg)
210 {
211 int multiplier = 1;
212
213 if (mcfg->m_type == SKL_MODULE_TYPE_SRCINT)
214 multiplier = 5;
215
216 mcfg->ibs = (mcfg->in_fmt.s_freq / 1000) *
217 (mcfg->in_fmt.channels) *
218 (mcfg->in_fmt.bit_depth >> 3) *
219 multiplier;
220
221 mcfg->obs = (mcfg->out_fmt.s_freq / 1000) *
222 (mcfg->out_fmt.channels) *
223 (mcfg->out_fmt.bit_depth >> 3) *
224 multiplier;
225 }
226
227 static void skl_tplg_update_module_params(struct snd_soc_dapm_widget *w,
228 struct skl_sst *ctx)
229 {
230 struct skl_module_cfg *m_cfg = w->priv;
231 struct skl_pipe_params *params = m_cfg->pipe->p_params;
232 int p_conn_type = m_cfg->pipe->conn_type;
233 bool is_fe;
234
235 if (!m_cfg->params_fixup)
236 return;
237
238 dev_dbg(ctx->dev, "Mconfig for widget=%s BEFORE updation\n",
239 w->name);
240
241 skl_dump_mconfig(ctx, m_cfg);
242
243 if (p_conn_type == SKL_PIPE_CONN_TYPE_FE)
244 is_fe = true;
245 else
246 is_fe = false;
247
248 skl_tplg_update_params_fixup(m_cfg, params, is_fe);
249 skl_tplg_update_buffer_size(ctx, m_cfg);
250
251 dev_dbg(ctx->dev, "Mconfig for widget=%s AFTER updation\n",
252 w->name);
253
254 skl_dump_mconfig(ctx, m_cfg);
255 }
256
257 /*
258 * A pipe can have multiple modules, each of them will be a DAPM widget as
259 * well. While managing a pipeline we need to get the list of all the
260 * widgets in a pipelines, so this helper - skl_tplg_get_pipe_widget() helps
261 * to get the SKL type widgets in that pipeline
262 */
263 static int skl_tplg_alloc_pipe_widget(struct device *dev,
264 struct snd_soc_dapm_widget *w, struct skl_pipe *pipe)
265 {
266 struct skl_module_cfg *src_module = NULL;
267 struct snd_soc_dapm_path *p = NULL;
268 struct skl_pipe_module *p_module = NULL;
269
270 p_module = devm_kzalloc(dev, sizeof(*p_module), GFP_KERNEL);
271 if (!p_module)
272 return -ENOMEM;
273
274 p_module->w = w;
275 list_add_tail(&p_module->node, &pipe->w_list);
276
277 snd_soc_dapm_widget_for_each_sink_path(w, p) {
278 if ((p->sink->priv == NULL)
279 && (!is_skl_dsp_widget_type(w)))
280 continue;
281
282 if ((p->sink->priv != NULL) && p->connect
283 && is_skl_dsp_widget_type(p->sink)) {
284
285 src_module = p->sink->priv;
286 if (pipe->ppl_id == src_module->pipe->ppl_id)
287 skl_tplg_alloc_pipe_widget(dev,
288 p->sink, pipe);
289 }
290 }
291 return 0;
292 }
293
294 /*
295 * Inside a pipe instance, we can have various modules. These modules need
296 * to instantiated in DSP by invoking INIT_MODULE IPC, which is achieved by
297 * skl_init_module() routine, so invoke that for all modules in a pipeline
298 */
299 static int
300 skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe)
301 {
302 struct skl_pipe_module *w_module;
303 struct snd_soc_dapm_widget *w;
304 struct skl_module_cfg *mconfig;
305 struct skl_sst *ctx = skl->skl_sst;
306 int ret = 0;
307
308 list_for_each_entry(w_module, &pipe->w_list, node) {
309 w = w_module->w;
310 mconfig = w->priv;
311
312 /* check resource available */
313 if (!skl_tplg_alloc_pipe_mcps(skl, mconfig))
314 return -ENOMEM;
315
316 /*
317 * apply fix/conversion to module params based on
318 * FE/BE params
319 */
320 skl_tplg_update_module_params(w, ctx);
321 ret = skl_init_module(ctx, mconfig, NULL);
322 if (ret < 0)
323 return ret;
324 }
325
326 return 0;
327 }
328
329 /*
330 * Mixer module represents a pipeline. So in the Pre-PMU event of mixer we
331 * need create the pipeline. So we do following:
332 * - check the resources
333 * - Create the pipeline
334 * - Initialize the modules in pipeline
335 * - finally bind all modules together
336 */
337 static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
338 struct skl *skl)
339 {
340 int ret;
341 struct skl_module_cfg *mconfig = w->priv;
342 struct skl_pipe_module *w_module;
343 struct skl_pipe *s_pipe = mconfig->pipe;
344 struct skl_module_cfg *src_module = NULL, *dst_module;
345 struct skl_sst *ctx = skl->skl_sst;
346
347 /* check resource available */
348 if (!skl_tplg_alloc_pipe_mcps(skl, mconfig))
349 return -EBUSY;
350
351 if (!skl_tplg_alloc_pipe_mem(skl, mconfig))
352 return -ENOMEM;
353
354 /*
355 * Create a list of modules for pipe.
356 * This list contains modules from source to sink
357 */
358 ret = skl_create_pipeline(ctx, mconfig->pipe);
359 if (ret < 0)
360 return ret;
361
362 /*
363 * we create a w_list of all widgets in that pipe. This list is not
364 * freed on PMD event as widgets within a pipe are static. This
365 * saves us cycles to get widgets in pipe every time.
366 *
367 * So if we have already initialized all the widgets of a pipeline
368 * we skip, so check for list_empty and create the list if empty
369 */
370 if (list_empty(&s_pipe->w_list)) {
371 ret = skl_tplg_alloc_pipe_widget(ctx->dev, w, s_pipe);
372 if (ret < 0)
373 return ret;
374 }
375
376 /* Init all pipe modules from source to sink */
377 ret = skl_tplg_init_pipe_modules(skl, s_pipe);
378 if (ret < 0)
379 return ret;
380
381 /* Bind modules from source to sink */
382 list_for_each_entry(w_module, &s_pipe->w_list, node) {
383 dst_module = w_module->w->priv;
384
385 if (src_module == NULL) {
386 src_module = dst_module;
387 continue;
388 }
389
390 ret = skl_bind_modules(ctx, src_module, dst_module);
391 if (ret < 0)
392 return ret;
393
394 src_module = dst_module;
395 }
396
397 return 0;
398 }
399
400 /*
401 * A PGA represents a module in a pipeline. So in the Pre-PMU event of PGA
402 * we need to do following:
403 * - Bind to sink pipeline
404 * Since the sink pipes can be running and we don't get mixer event on
405 * connect for already running mixer, we need to find the sink pipes
406 * here and bind to them. This way dynamic connect works.
407 * - Start sink pipeline, if not running
408 * - Then run current pipe
409 */
410 static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
411 struct skl *skl)
412 {
413 struct snd_soc_dapm_path *p;
414 struct skl_dapm_path_list *path_list;
415 struct snd_soc_dapm_widget *source, *sink;
416 struct skl_module_cfg *src_mconfig, *sink_mconfig;
417 struct skl_sst *ctx = skl->skl_sst;
418 int ret = 0;
419
420 source = w;
421 src_mconfig = source->priv;
422
423 /*
424 * find which sink it is connected to, bind with the sink,
425 * if sink is not started, start sink pipe first, then start
426 * this pipe
427 */
428 snd_soc_dapm_widget_for_each_source_path(w, p) {
429 if (!p->connect)
430 continue;
431
432 dev_dbg(ctx->dev, "%s: src widget=%s\n", __func__, w->name);
433 dev_dbg(ctx->dev, "%s: sink widget=%s\n", __func__, p->sink->name);
434
435 /*
436 * here we will check widgets in sink pipelines, so that
437 * can be any widgets type and we are only interested if
438 * they are ones used for SKL so check that first
439 */
440 if ((p->sink->priv != NULL) &&
441 is_skl_dsp_widget_type(p->sink)) {
442
443 sink = p->sink;
444 src_mconfig = source->priv;
445 sink_mconfig = sink->priv;
446
447 /* Bind source to sink, mixin is always source */
448 ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig);
449 if (ret)
450 return ret;
451
452 /* Start sinks pipe first */
453 if (sink_mconfig->pipe->state != SKL_PIPE_STARTED) {
454 ret = skl_run_pipe(ctx, sink_mconfig->pipe);
455 if (ret)
456 return ret;
457 }
458
459 path_list = kzalloc(
460 sizeof(struct skl_dapm_path_list),
461 GFP_KERNEL);
462 if (path_list == NULL)
463 return -ENOMEM;
464
465 /* Add connected path to one global list */
466 path_list->dapm_path = p;
467 list_add_tail(&path_list->node, &skl->dapm_path_list);
468 break;
469 }
470 }
471
472 /* Start source pipe last after starting all sinks */
473 ret = skl_run_pipe(ctx, src_mconfig->pipe);
474 if (ret)
475 return ret;
476
477 return 0;
478 }
479
480 /*
481 * in the Post-PMU event of mixer we need to do following:
482 * - Check if this pipe is running
483 * - if not, then
484 * - bind this pipeline to its source pipeline
485 * if source pipe is already running, this means it is a dynamic
486 * connection and we need to bind only to that pipe
487 * - start this pipeline
488 */
489 static int skl_tplg_mixer_dapm_post_pmu_event(struct snd_soc_dapm_widget *w,
490 struct skl *skl)
491 {
492 int ret = 0;
493 struct snd_soc_dapm_path *p;
494 struct snd_soc_dapm_widget *source, *sink;
495 struct skl_module_cfg *src_mconfig, *sink_mconfig;
496 struct skl_sst *ctx = skl->skl_sst;
497 int src_pipe_started = 0;
498
499 sink = w;
500 sink_mconfig = sink->priv;
501
502 /*
503 * If source pipe is already started, that means source is driving
504 * one more sink before this sink got connected, Since source is
505 * started, bind this sink to source and start this pipe.
506 */
507 snd_soc_dapm_widget_for_each_sink_path(w, p) {
508 if (!p->connect)
509 continue;
510
511 dev_dbg(ctx->dev, "sink widget=%s\n", w->name);
512 dev_dbg(ctx->dev, "src widget=%s\n", p->source->name);
513
514 /*
515 * here we will check widgets in sink pipelines, so that
516 * can be any widgets type and we are only interested if
517 * they are ones used for SKL so check that first
518 */
519 if ((p->source->priv != NULL) &&
520 is_skl_dsp_widget_type(p->source)) {
521 source = p->source;
522 src_mconfig = source->priv;
523 sink_mconfig = sink->priv;
524 src_pipe_started = 1;
525
526 /*
527 * check pipe state, then no need to bind or start
528 * the pipe
529 */
530 if (src_mconfig->pipe->state != SKL_PIPE_STARTED)
531 src_pipe_started = 0;
532 }
533 }
534
535 if (src_pipe_started) {
536 ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig);
537 if (ret)
538 return ret;
539
540 ret = skl_run_pipe(ctx, sink_mconfig->pipe);
541 }
542
543 return ret;
544 }
545
546 /*
547 * in the Pre-PMD event of mixer we need to do following:
548 * - Stop the pipe
549 * - find the source connections and remove that from dapm_path_list
550 * - unbind with source pipelines if still connected
551 */
552 static int skl_tplg_mixer_dapm_pre_pmd_event(struct snd_soc_dapm_widget *w,
553 struct skl *skl)
554 {
555 struct snd_soc_dapm_widget *source, *sink;
556 struct skl_module_cfg *src_mconfig, *sink_mconfig;
557 int ret = 0, path_found = 0;
558 struct skl_dapm_path_list *path_list, *tmp_list;
559 struct skl_sst *ctx = skl->skl_sst;
560
561 sink = w;
562 sink_mconfig = sink->priv;
563
564 /* Stop the pipe */
565 ret = skl_stop_pipe(ctx, sink_mconfig->pipe);
566 if (ret)
567 return ret;
568
569 /*
570 * This list, dapm_path_list handling here does not need any locks
571 * as we are under dapm lock while handling widget events.
572 * List can be manipulated safely only under dapm widgets handler
573 * routines
574 */
575 list_for_each_entry_safe(path_list, tmp_list,
576 &skl->dapm_path_list, node) {
577 if (path_list->dapm_path->sink == sink) {
578 dev_dbg(ctx->dev, "Path found = %s\n",
579 path_list->dapm_path->name);
580 source = path_list->dapm_path->source;
581 src_mconfig = source->priv;
582 path_found = 1;
583
584 list_del(&path_list->node);
585 kfree(path_list);
586 break;
587 }
588 }
589
590 /*
591 * If path_found == 1, that means pmd for source pipe has
592 * not occurred, source is connected to some other sink.
593 * so its responsibility of sink to unbind itself from source.
594 */
595 if (path_found) {
596 ret = skl_stop_pipe(ctx, src_mconfig->pipe);
597 if (ret < 0)
598 return ret;
599
600 ret = skl_unbind_modules(ctx, src_mconfig, sink_mconfig);
601 }
602
603 return ret;
604 }
605
606 /*
607 * in the Post-PMD event of mixer we need to do following:
608 * - Free the mcps used
609 * - Free the mem used
610 * - Unbind the modules within the pipeline
611 * - Delete the pipeline (modules are not required to be explicitly
612 * deleted, pipeline delete is enough here
613 */
614 static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
615 struct skl *skl)
616 {
617 struct skl_module_cfg *mconfig = w->priv;
618 struct skl_pipe_module *w_module;
619 struct skl_module_cfg *src_module = NULL, *dst_module;
620 struct skl_sst *ctx = skl->skl_sst;
621 struct skl_pipe *s_pipe = mconfig->pipe;
622 int ret = 0;
623
624 skl_tplg_free_pipe_mcps(skl, mconfig);
625
626 list_for_each_entry(w_module, &s_pipe->w_list, node) {
627 dst_module = w_module->w->priv;
628
629 if (src_module == NULL) {
630 src_module = dst_module;
631 continue;
632 }
633
634 ret = skl_unbind_modules(ctx, src_module, dst_module);
635 if (ret < 0)
636 return ret;
637
638 src_module = dst_module;
639 }
640
641 ret = skl_delete_pipe(ctx, mconfig->pipe);
642 skl_tplg_free_pipe_mem(skl, mconfig);
643
644 return ret;
645 }
646
647 /*
648 * in the Post-PMD event of PGA we need to do following:
649 * - Free the mcps used
650 * - Stop the pipeline
651 * - In source pipe is connected, unbind with source pipelines
652 */
653 static int skl_tplg_pga_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
654 struct skl *skl)
655 {
656 struct snd_soc_dapm_widget *source, *sink;
657 struct skl_module_cfg *src_mconfig, *sink_mconfig;
658 int ret = 0, path_found = 0;
659 struct skl_dapm_path_list *path_list, *tmp_path_list;
660 struct skl_sst *ctx = skl->skl_sst;
661
662 source = w;
663 src_mconfig = source->priv;
664
665 skl_tplg_free_pipe_mcps(skl, src_mconfig);
666 /* Stop the pipe since this is a mixin module */
667 ret = skl_stop_pipe(ctx, src_mconfig->pipe);
668 if (ret)
669 return ret;
670
671 list_for_each_entry_safe(path_list, tmp_path_list, &skl->dapm_path_list, node) {
672 if (path_list->dapm_path->source == source) {
673 dev_dbg(ctx->dev, "Path found = %s\n",
674 path_list->dapm_path->name);
675 sink = path_list->dapm_path->sink;
676 sink_mconfig = sink->priv;
677 path_found = 1;
678
679 list_del(&path_list->node);
680 kfree(path_list);
681 break;
682 }
683 }
684
685 /*
686 * This is a connector and if path is found that means
687 * unbind between source and sink has not happened yet
688 */
689 if (path_found) {
690 ret = skl_stop_pipe(ctx, src_mconfig->pipe);
691 if (ret < 0)
692 return ret;
693
694 ret = skl_unbind_modules(ctx, src_mconfig, sink_mconfig);
695 }
696
697 return ret;
698 }
699
700 /*
701 * In modelling, we assume there will be ONLY one mixer in a pipeline. If
702 * mixer is not required then it is treated as static mixer aka vmixer with
703 * a hard path to source module
704 * So we don't need to check if source is started or not as hard path puts
705 * dependency on each other
706 */
707 static int skl_tplg_vmixer_event(struct snd_soc_dapm_widget *w,
708 struct snd_kcontrol *k, int event)
709 {
710 struct snd_soc_dapm_context *dapm = w->dapm;
711 struct skl *skl = get_skl_ctx(dapm->dev);
712
713 switch (event) {
714 case SND_SOC_DAPM_PRE_PMU:
715 return skl_tplg_mixer_dapm_pre_pmu_event(w, skl);
716
717 case SND_SOC_DAPM_POST_PMD:
718 return skl_tplg_mixer_dapm_post_pmd_event(w, skl);
719 }
720
721 return 0;
722 }
723
724 /*
725 * In modelling, we assume there will be ONLY one mixer in a pipeline. If a
726 * second one is required that is created as another pipe entity.
727 * The mixer is responsible for pipe management and represent a pipeline
728 * instance
729 */
730 static int skl_tplg_mixer_event(struct snd_soc_dapm_widget *w,
731 struct snd_kcontrol *k, int event)
732 {
733 struct snd_soc_dapm_context *dapm = w->dapm;
734 struct skl *skl = get_skl_ctx(dapm->dev);
735
736 switch (event) {
737 case SND_SOC_DAPM_PRE_PMU:
738 return skl_tplg_mixer_dapm_pre_pmu_event(w, skl);
739
740 case SND_SOC_DAPM_POST_PMU:
741 return skl_tplg_mixer_dapm_post_pmu_event(w, skl);
742
743 case SND_SOC_DAPM_PRE_PMD:
744 return skl_tplg_mixer_dapm_pre_pmd_event(w, skl);
745
746 case SND_SOC_DAPM_POST_PMD:
747 return skl_tplg_mixer_dapm_post_pmd_event(w, skl);
748 }
749
750 return 0;
751 }
752
753 /*
754 * In modelling, we assumed rest of the modules in pipeline are PGA. But we
755 * are interested in last PGA (leaf PGA) in a pipeline to disconnect with
756 * the sink when it is running (two FE to one BE or one FE to two BE)
757 * scenarios
758 */
759 static int skl_tplg_pga_event(struct snd_soc_dapm_widget *w,
760 struct snd_kcontrol *k, int event)
761
762 {
763 struct snd_soc_dapm_context *dapm = w->dapm;
764 struct skl *skl = get_skl_ctx(dapm->dev);
765
766 switch (event) {
767 case SND_SOC_DAPM_PRE_PMU:
768 return skl_tplg_pga_dapm_pre_pmu_event(w, skl);
769
770 case SND_SOC_DAPM_POST_PMD:
771 return skl_tplg_pga_dapm_post_pmd_event(w, skl);
772 }
773
774 return 0;
775 }
776
777 /*
778 * The FE params are passed by hw_params of the DAI.
779 * On hw_params, the params are stored in Gateway module of the FE and we
780 * need to calculate the format in DSP module configuration, that
781 * conversion is done here
782 */
783 int skl_tplg_update_pipe_params(struct device *dev,
784 struct skl_module_cfg *mconfig,
785 struct skl_pipe_params *params)
786 {
787 struct skl_pipe *pipe = mconfig->pipe;
788 struct skl_module_fmt *format = NULL;
789
790 memcpy(pipe->p_params, params, sizeof(*params));
791
792 if (params->stream == SNDRV_PCM_STREAM_PLAYBACK)
793 format = &mconfig->in_fmt;
794 else
795 format = &mconfig->out_fmt;
796
797 /* set the hw_params */
798 format->s_freq = params->s_freq;
799 format->channels = params->ch;
800 format->valid_bit_depth = skl_get_bit_depth(params->s_fmt);
801
802 /*
803 * 16 bit is 16 bit container whereas 24 bit is in 32 bit
804 * container so update bit depth accordingly
805 */
806 switch (format->valid_bit_depth) {
807 case SKL_DEPTH_16BIT:
808 format->bit_depth = format->valid_bit_depth;
809 break;
810
811 case SKL_DEPTH_24BIT:
812 format->bit_depth = SKL_DEPTH_32BIT;
813 break;
814
815 default:
816 dev_err(dev, "Invalid bit depth %x for pipe\n",
817 format->valid_bit_depth);
818 return -EINVAL;
819 }
820
821 if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
822 mconfig->ibs = (format->s_freq / 1000) *
823 (format->channels) *
824 (format->bit_depth >> 3);
825 } else {
826 mconfig->obs = (format->s_freq / 1000) *
827 (format->channels) *
828 (format->bit_depth >> 3);
829 }
830
831 return 0;
832 }
833
834 /*
835 * Query the module config for the FE DAI
836 * This is used to find the hw_params set for that DAI and apply to FE
837 * pipeline
838 */
839 struct skl_module_cfg *
840 skl_tplg_fe_get_cpr_module(struct snd_soc_dai *dai, int stream)
841 {
842 struct snd_soc_dapm_widget *w;
843 struct snd_soc_dapm_path *p = NULL;
844
845 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
846 w = dai->playback_widget;
847 snd_soc_dapm_widget_for_each_source_path(w, p) {
848 if (p->connect && p->sink->power &&
849 is_skl_dsp_widget_type(p->sink))
850 continue;
851
852 if (p->sink->priv) {
853 dev_dbg(dai->dev, "set params for %s\n",
854 p->sink->name);
855 return p->sink->priv;
856 }
857 }
858 } else {
859 w = dai->capture_widget;
860 snd_soc_dapm_widget_for_each_sink_path(w, p) {
861 if (p->connect && p->source->power &&
862 is_skl_dsp_widget_type(p->source))
863 continue;
864
865 if (p->source->priv) {
866 dev_dbg(dai->dev, "set params for %s\n",
867 p->source->name);
868 return p->source->priv;
869 }
870 }
871 }
872
873 return NULL;
874 }
875
876 static u8 skl_tplg_be_link_type(int dev_type)
877 {
878 int ret;
879
880 switch (dev_type) {
881 case SKL_DEVICE_BT:
882 ret = NHLT_LINK_SSP;
883 break;
884
885 case SKL_DEVICE_DMIC:
886 ret = NHLT_LINK_DMIC;
887 break;
888
889 case SKL_DEVICE_I2S:
890 ret = NHLT_LINK_SSP;
891 break;
892
893 case SKL_DEVICE_HDALINK:
894 ret = NHLT_LINK_HDA;
895 break;
896
897 default:
898 ret = NHLT_LINK_INVALID;
899 break;
900 }
901
902 return ret;
903 }
904
905 /*
906 * Fill the BE gateway parameters
907 * The BE gateway expects a blob of parameters which are kept in the ACPI
908 * NHLT blob, so query the blob for interface type (i2s/pdm) and instance.
909 * The port can have multiple settings so pick based on the PCM
910 * parameters
911 */
912 static int skl_tplg_be_fill_pipe_params(struct snd_soc_dai *dai,
913 struct skl_module_cfg *mconfig,
914 struct skl_pipe_params *params)
915 {
916 struct skl_pipe *pipe = mconfig->pipe;
917 struct nhlt_specific_cfg *cfg;
918 struct skl *skl = get_skl_ctx(dai->dev);
919 int link_type = skl_tplg_be_link_type(mconfig->dev_type);
920
921 memcpy(pipe->p_params, params, sizeof(*params));
922
923 /* update the blob based on virtual bus_id*/
924 cfg = skl_get_ep_blob(skl, mconfig->vbus_id, link_type,
925 params->s_fmt, params->ch,
926 params->s_freq, params->stream);
927 if (cfg) {
928 mconfig->formats_config.caps_size = cfg->size;
929 memcpy(mconfig->formats_config.caps, &cfg->caps, cfg->size);
930 } else {
931 dev_err(dai->dev, "Blob NULL for id %x type %d dirn %d\n",
932 mconfig->vbus_id, link_type,
933 params->stream);
934 dev_err(dai->dev, "PCM: ch %d, freq %d, fmt %d\n",
935 params->ch, params->s_freq, params->s_fmt);
936 return -EINVAL;
937 }
938
939 return 0;
940 }
941
942 static int skl_tplg_be_set_src_pipe_params(struct snd_soc_dai *dai,
943 struct snd_soc_dapm_widget *w,
944 struct skl_pipe_params *params)
945 {
946 struct snd_soc_dapm_path *p;
947
948 snd_soc_dapm_widget_for_each_sink_path(w, p) {
949 if (p->connect && is_skl_dsp_widget_type(p->source) &&
950 p->source->priv) {
951
952 if (!p->source->power)
953 return skl_tplg_be_fill_pipe_params(
954 dai, p->source->priv,
955 params);
956 else
957 return -EBUSY;
958 } else {
959 return skl_tplg_be_set_src_pipe_params(
960 dai, p->source, params);
961 }
962 }
963
964 return -EIO;
965 }
966
967 static int skl_tplg_be_set_sink_pipe_params(struct snd_soc_dai *dai,
968 struct snd_soc_dapm_widget *w, struct skl_pipe_params *params)
969 {
970 struct snd_soc_dapm_path *p = NULL;
971
972 snd_soc_dapm_widget_for_each_source_path(w, p) {
973 if (p->connect && is_skl_dsp_widget_type(p->sink) &&
974 p->sink->priv) {
975
976 if (!p->sink->power)
977 return skl_tplg_be_fill_pipe_params(
978 dai, p->sink->priv, params);
979 else
980 return -EBUSY;
981
982 } else {
983 return skl_tplg_be_set_sink_pipe_params(
984 dai, p->sink, params);
985 }
986 }
987
988 return -EIO;
989 }
990
991 /*
992 * BE hw_params can be a source parameters (capture) or sink parameters
993 * (playback). Based on sink and source we need to either find the source
994 * list or the sink list and set the pipeline parameters
995 */
996 int skl_tplg_be_update_params(struct snd_soc_dai *dai,
997 struct skl_pipe_params *params)
998 {
999 struct snd_soc_dapm_widget *w;
1000
1001 if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1002 w = dai->playback_widget;
1003
1004 return skl_tplg_be_set_src_pipe_params(dai, w, params);
1005
1006 } else {
1007 w = dai->capture_widget;
1008
1009 return skl_tplg_be_set_sink_pipe_params(dai, w, params);
1010 }
1011
1012 return 0;
1013 }
1014
1015 static const struct snd_soc_tplg_widget_events skl_tplg_widget_ops[] = {
1016 {SKL_MIXER_EVENT, skl_tplg_mixer_event},
1017 {SKL_VMIXER_EVENT, skl_tplg_vmixer_event},
1018 {SKL_PGA_EVENT, skl_tplg_pga_event},
1019 };
1020
1021 /*
1022 * The topology binary passes the pin info for a module so initialize the pin
1023 * info passed into module instance
1024 */
1025 static void skl_fill_module_pin_info(struct device *dev,
1026 struct skl_module_pin *m_pin,
1027 int max_pin)
1028 {
1029 int i;
1030
1031 for (i = 0; i < max_pin; i++) {
1032 m_pin[i].id.module_id = 0;
1033 m_pin[i].id.instance_id = 0;
1034 m_pin[i].in_use = false;
1035 m_pin[i].is_dynamic = true;
1036 m_pin[i].pin_index = i;
1037 }
1038 }
1039
1040 /*
1041 * Add pipeline from topology binary into driver pipeline list
1042 *
1043 * If already added we return that instance
1044 * Otherwise we create a new instance and add into driver list
1045 */
1046 static struct skl_pipe *skl_tplg_add_pipe(struct device *dev,
1047 struct skl *skl, struct skl_dfw_pipe *dfw_pipe)
1048 {
1049 struct skl_pipeline *ppl;
1050 struct skl_pipe *pipe;
1051 struct skl_pipe_params *params;
1052
1053 list_for_each_entry(ppl, &skl->ppl_list, node) {
1054 if (ppl->pipe->ppl_id == dfw_pipe->pipe_id)
1055 return ppl->pipe;
1056 }
1057
1058 ppl = devm_kzalloc(dev, sizeof(*ppl), GFP_KERNEL);
1059 if (!ppl)
1060 return NULL;
1061
1062 pipe = devm_kzalloc(dev, sizeof(*pipe), GFP_KERNEL);
1063 if (!pipe)
1064 return NULL;
1065
1066 params = devm_kzalloc(dev, sizeof(*params), GFP_KERNEL);
1067 if (!params)
1068 return NULL;
1069
1070 pipe->ppl_id = dfw_pipe->pipe_id;
1071 pipe->memory_pages = dfw_pipe->memory_pages;
1072 pipe->pipe_priority = dfw_pipe->pipe_priority;
1073 pipe->conn_type = dfw_pipe->conn_type;
1074 pipe->state = SKL_PIPE_INVALID;
1075 pipe->p_params = params;
1076 INIT_LIST_HEAD(&pipe->w_list);
1077
1078 ppl->pipe = pipe;
1079 list_add(&ppl->node, &skl->ppl_list);
1080
1081 return ppl->pipe;
1082 }
1083
1084 /*
1085 * Topology core widget load callback
1086 *
1087 * This is used to save the private data for each widget which gives
1088 * information to the driver about module and pipeline parameters which DSP
1089 * FW expects like ids, resource values, formats etc
1090 */
1091 static int skl_tplg_widget_load(struct snd_soc_component *cmpnt,
1092 struct snd_soc_dapm_widget *w,
1093 struct snd_soc_tplg_dapm_widget *tplg_w)
1094 {
1095 int ret;
1096 struct hdac_ext_bus *ebus = snd_soc_component_get_drvdata(cmpnt);
1097 struct skl *skl = ebus_to_skl(ebus);
1098 struct hdac_bus *bus = ebus_to_hbus(ebus);
1099 struct skl_module_cfg *mconfig;
1100 struct skl_pipe *pipe;
1101 struct skl_dfw_module *dfw_config =
1102 (struct skl_dfw_module *)tplg_w->priv.data;
1103
1104 if (!tplg_w->priv.size)
1105 goto bind_event;
1106
1107 mconfig = devm_kzalloc(bus->dev, sizeof(*mconfig), GFP_KERNEL);
1108
1109 if (!mconfig)
1110 return -ENOMEM;
1111
1112 w->priv = mconfig;
1113 mconfig->id.module_id = dfw_config->module_id;
1114 mconfig->id.instance_id = dfw_config->instance_id;
1115 mconfig->mcps = dfw_config->max_mcps;
1116 mconfig->ibs = dfw_config->ibs;
1117 mconfig->obs = dfw_config->obs;
1118 mconfig->core_id = dfw_config->core_id;
1119 mconfig->max_in_queue = dfw_config->max_in_queue;
1120 mconfig->max_out_queue = dfw_config->max_out_queue;
1121 mconfig->is_loadable = dfw_config->is_loadable;
1122 mconfig->in_fmt.channels = dfw_config->in_fmt.channels;
1123 mconfig->in_fmt.s_freq = dfw_config->in_fmt.freq;
1124 mconfig->in_fmt.bit_depth = dfw_config->in_fmt.bit_depth;
1125 mconfig->in_fmt.valid_bit_depth =
1126 dfw_config->in_fmt.valid_bit_depth;
1127 mconfig->in_fmt.ch_cfg = dfw_config->in_fmt.ch_cfg;
1128 mconfig->out_fmt.channels = dfw_config->out_fmt.channels;
1129 mconfig->out_fmt.s_freq = dfw_config->out_fmt.freq;
1130 mconfig->out_fmt.bit_depth = dfw_config->out_fmt.bit_depth;
1131 mconfig->out_fmt.valid_bit_depth =
1132 dfw_config->out_fmt.valid_bit_depth;
1133 mconfig->out_fmt.ch_cfg = dfw_config->out_fmt.ch_cfg;
1134 mconfig->params_fixup = dfw_config->params_fixup;
1135 mconfig->converter = dfw_config->converter;
1136 mconfig->m_type = dfw_config->module_type;
1137 mconfig->vbus_id = dfw_config->vbus_id;
1138
1139 pipe = skl_tplg_add_pipe(bus->dev, skl, &dfw_config->pipe);
1140 if (pipe)
1141 mconfig->pipe = pipe;
1142
1143 mconfig->dev_type = dfw_config->dev_type;
1144 mconfig->hw_conn_type = dfw_config->hw_conn_type;
1145 mconfig->time_slot = dfw_config->time_slot;
1146 mconfig->formats_config.caps_size = dfw_config->caps.caps_size;
1147
1148 mconfig->m_in_pin = devm_kzalloc(bus->dev,
1149 (mconfig->max_in_queue) *
1150 sizeof(*mconfig->m_in_pin),
1151 GFP_KERNEL);
1152 if (!mconfig->m_in_pin)
1153 return -ENOMEM;
1154
1155 mconfig->m_out_pin = devm_kzalloc(bus->dev,
1156 (mconfig->max_in_queue) *
1157 sizeof(*mconfig->m_out_pin),
1158 GFP_KERNEL);
1159 if (!mconfig->m_out_pin)
1160 return -ENOMEM;
1161
1162 skl_fill_module_pin_info(bus->dev, mconfig->m_in_pin,
1163 mconfig->max_in_queue);
1164 skl_fill_module_pin_info(bus->dev, mconfig->m_out_pin,
1165 mconfig->max_out_queue);
1166
1167 if (mconfig->formats_config.caps_size == 0)
1168 goto bind_event;
1169
1170 mconfig->formats_config.caps = (u32 *)devm_kzalloc(bus->dev,
1171 mconfig->formats_config.caps_size, GFP_KERNEL);
1172
1173 if (mconfig->formats_config.caps == NULL)
1174 return -ENOMEM;
1175
1176 memcpy(mconfig->formats_config.caps, dfw_config->caps.caps,
1177 dfw_config->caps.caps_size);
1178
1179 bind_event:
1180 if (tplg_w->event_type == 0) {
1181 dev_info(bus->dev, "ASoC: No event handler required\n");
1182 return 0;
1183 }
1184
1185 ret = snd_soc_tplg_widget_bind_event(w, skl_tplg_widget_ops,
1186 ARRAY_SIZE(skl_tplg_widget_ops),
1187 tplg_w->event_type);
1188
1189 if (ret) {
1190 dev_err(bus->dev, "%s: No matching event handlers found for %d\n",
1191 __func__, tplg_w->event_type);
1192 return -EINVAL;
1193 }
1194
1195 return 0;
1196 }
1197
1198 static struct snd_soc_tplg_ops skl_tplg_ops = {
1199 .widget_load = skl_tplg_widget_load,
1200 };
1201
1202 /* This will be read from topology manifest, currently defined here */
1203 #define SKL_MAX_MCPS 30000000
1204 #define SKL_FW_MAX_MEM 1000000
1205
1206 /*
1207 * SKL topology init routine
1208 */
1209 int skl_tplg_init(struct snd_soc_platform *platform, struct hdac_ext_bus *ebus)
1210 {
1211 int ret;
1212 const struct firmware *fw;
1213 struct hdac_bus *bus = ebus_to_hbus(ebus);
1214 struct skl *skl = ebus_to_skl(ebus);
1215
1216 ret = request_firmware(&fw, "dfw_sst.bin", bus->dev);
1217 if (ret < 0) {
1218 dev_err(bus->dev, "tplg fw %s load failed with %d\n",
1219 "dfw_sst.bin", ret);
1220 return ret;
1221 }
1222
1223 /*
1224 * The complete tplg for SKL is loaded as index 0, we don't use
1225 * any other index
1226 */
1227 ret = snd_soc_tplg_component_load(&platform->component,
1228 &skl_tplg_ops, fw, 0);
1229 if (ret < 0) {
1230 dev_err(bus->dev, "tplg component load failed%d\n", ret);
1231 return -EINVAL;
1232 }
1233
1234 skl->resource.max_mcps = SKL_MAX_MCPS;
1235 skl->resource.max_mem = SKL_FW_MAX_MEM;
1236
1237 return 0;
1238 }
Linux kernel - Deliverables
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