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TOMOYO Linux Cross Reference
Linux/sound/soc/intel/skylake/skl-topology.c

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  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 #include "../common/sst-dsp.h"
 30 #include "../common/sst-dsp-priv.h"
 31 
 32 #define SKL_CH_FIXUP_MASK               (1 << 0)
 33 #define SKL_RATE_FIXUP_MASK             (1 << 1)
 34 #define SKL_FMT_FIXUP_MASK              (1 << 2)
 35 
 36 /*
 37  * SKL DSP driver modelling uses only few DAPM widgets so for rest we will
 38  * ignore. This helpers checks if the SKL driver handles this widget type
 39  */
 40 static int is_skl_dsp_widget_type(struct snd_soc_dapm_widget *w)
 41 {
 42         switch (w->id) {
 43         case snd_soc_dapm_dai_link:
 44         case snd_soc_dapm_dai_in:
 45         case snd_soc_dapm_aif_in:
 46         case snd_soc_dapm_aif_out:
 47         case snd_soc_dapm_dai_out:
 48         case snd_soc_dapm_switch:
 49                 return false;
 50         default:
 51                 return true;
 52         }
 53 }
 54 
 55 /*
 56  * Each pipelines needs memory to be allocated. Check if we have free memory
 57  * from available pool.
 58  */
 59 static bool skl_is_pipe_mem_avail(struct skl *skl,
 60                                 struct skl_module_cfg *mconfig)
 61 {
 62         struct skl_sst *ctx = skl->skl_sst;
 63 
 64         if (skl->resource.mem + mconfig->pipe->memory_pages >
 65                                 skl->resource.max_mem) {
 66                 dev_err(ctx->dev,
 67                                 "%s: module_id %d instance %d\n", __func__,
 68                                 mconfig->id.module_id,
 69                                 mconfig->id.instance_id);
 70                 dev_err(ctx->dev,
 71                                 "exceeds ppl memory available %d mem %d\n",
 72                                 skl->resource.max_mem, skl->resource.mem);
 73                 return false;
 74         } else {
 75                 return true;
 76         }
 77 }
 78 
 79 /*
 80  * Add the mem to the mem pool. This is freed when pipe is deleted.
 81  * Note: DSP does actual memory management we only keep track for complete
 82  * pool
 83  */
 84 static void skl_tplg_alloc_pipe_mem(struct skl *skl,
 85                                 struct skl_module_cfg *mconfig)
 86 {
 87         skl->resource.mem += mconfig->pipe->memory_pages;
 88 }
 89 
 90 /*
 91  * Pipeline needs needs DSP CPU resources for computation, this is
 92  * quantified in MCPS (Million Clocks Per Second) required for module/pipe
 93  *
 94  * Each pipelines needs mcps to be allocated. Check if we have mcps for this
 95  * pipe.
 96  */
 97 
 98 static bool skl_is_pipe_mcps_avail(struct skl *skl,
 99                                 struct skl_module_cfg *mconfig)
100 {
101         struct skl_sst *ctx = skl->skl_sst;
102 
103         if (skl->resource.mcps + mconfig->mcps > skl->resource.max_mcps) {
104                 dev_err(ctx->dev,
105                         "%s: module_id %d instance %d\n", __func__,
106                         mconfig->id.module_id, mconfig->id.instance_id);
107                 dev_err(ctx->dev,
108                         "exceeds ppl mcps available %d > mem %d\n",
109                         skl->resource.max_mcps, skl->resource.mcps);
110                 return false;
111         } else {
112                 return true;
113         }
114 }
115 
116 static void skl_tplg_alloc_pipe_mcps(struct skl *skl,
117                                 struct skl_module_cfg *mconfig)
118 {
119         skl->resource.mcps += mconfig->mcps;
120 }
121 
122 /*
123  * Free the mcps when tearing down
124  */
125 static void
126 skl_tplg_free_pipe_mcps(struct skl *skl, struct skl_module_cfg *mconfig)
127 {
128         skl->resource.mcps -= mconfig->mcps;
129 }
130 
131 /*
132  * Free the memory when tearing down
133  */
134 static void
135 skl_tplg_free_pipe_mem(struct skl *skl, struct skl_module_cfg *mconfig)
136 {
137         skl->resource.mem -= mconfig->pipe->memory_pages;
138 }
139 
140 
141 static void skl_dump_mconfig(struct skl_sst *ctx,
142                                         struct skl_module_cfg *mcfg)
143 {
144         dev_dbg(ctx->dev, "Dumping config\n");
145         dev_dbg(ctx->dev, "Input Format:\n");
146         dev_dbg(ctx->dev, "channels = %d\n", mcfg->in_fmt[0].channels);
147         dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->in_fmt[0].s_freq);
148         dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->in_fmt[0].ch_cfg);
149         dev_dbg(ctx->dev, "valid bit depth = %d\n", mcfg->in_fmt[0].valid_bit_depth);
150         dev_dbg(ctx->dev, "Output Format:\n");
151         dev_dbg(ctx->dev, "channels = %d\n", mcfg->out_fmt[0].channels);
152         dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->out_fmt[0].s_freq);
153         dev_dbg(ctx->dev, "valid bit depth = %d\n", mcfg->out_fmt[0].valid_bit_depth);
154         dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->out_fmt[0].ch_cfg);
155 }
156 
157 static void skl_tplg_update_chmap(struct skl_module_fmt *fmt, int chs)
158 {
159         int slot_map = 0xFFFFFFFF;
160         int start_slot = 0;
161         int i;
162 
163         for (i = 0; i < chs; i++) {
164                 /*
165                  * For 2 channels with starting slot as 0, slot map will
166                  * look like 0xFFFFFF10.
167                  */
168                 slot_map &= (~(0xF << (4 * i)) | (start_slot << (4 * i)));
169                 start_slot++;
170         }
171         fmt->ch_map = slot_map;
172 }
173 
174 static void skl_tplg_update_params(struct skl_module_fmt *fmt,
175                         struct skl_pipe_params *params, int fixup)
176 {
177         if (fixup & SKL_RATE_FIXUP_MASK)
178                 fmt->s_freq = params->s_freq;
179         if (fixup & SKL_CH_FIXUP_MASK) {
180                 fmt->channels = params->ch;
181                 skl_tplg_update_chmap(fmt, fmt->channels);
182         }
183         if (fixup & SKL_FMT_FIXUP_MASK) {
184                 fmt->valid_bit_depth = skl_get_bit_depth(params->s_fmt);
185 
186                 /*
187                  * 16 bit is 16 bit container whereas 24 bit is in 32 bit
188                  * container so update bit depth accordingly
189                  */
190                 switch (fmt->valid_bit_depth) {
191                 case SKL_DEPTH_16BIT:
192                         fmt->bit_depth = fmt->valid_bit_depth;
193                         break;
194 
195                 default:
196                         fmt->bit_depth = SKL_DEPTH_32BIT;
197                         break;
198                 }
199         }
200 
201 }
202 
203 /*
204  * A pipeline may have modules which impact the pcm parameters, like SRC,
205  * channel converter, format converter.
206  * We need to calculate the output params by applying the 'fixup'
207  * Topology will tell driver which type of fixup is to be applied by
208  * supplying the fixup mask, so based on that we calculate the output
209  *
210  * Now In FE the pcm hw_params is source/target format. Same is applicable
211  * for BE with its hw_params invoked.
212  * here based on FE, BE pipeline and direction we calculate the input and
213  * outfix and then apply that for a module
214  */
215 static void skl_tplg_update_params_fixup(struct skl_module_cfg *m_cfg,
216                 struct skl_pipe_params *params, bool is_fe)
217 {
218         int in_fixup, out_fixup;
219         struct skl_module_fmt *in_fmt, *out_fmt;
220 
221         /* Fixups will be applied to pin 0 only */
222         in_fmt = &m_cfg->in_fmt[0];
223         out_fmt = &m_cfg->out_fmt[0];
224 
225         if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
226                 if (is_fe) {
227                         in_fixup = m_cfg->params_fixup;
228                         out_fixup = (~m_cfg->converter) &
229                                         m_cfg->params_fixup;
230                 } else {
231                         out_fixup = m_cfg->params_fixup;
232                         in_fixup = (~m_cfg->converter) &
233                                         m_cfg->params_fixup;
234                 }
235         } else {
236                 if (is_fe) {
237                         out_fixup = m_cfg->params_fixup;
238                         in_fixup = (~m_cfg->converter) &
239                                         m_cfg->params_fixup;
240                 } else {
241                         in_fixup = m_cfg->params_fixup;
242                         out_fixup = (~m_cfg->converter) &
243                                         m_cfg->params_fixup;
244                 }
245         }
246 
247         skl_tplg_update_params(in_fmt, params, in_fixup);
248         skl_tplg_update_params(out_fmt, params, out_fixup);
249 }
250 
251 /*
252  * A module needs input and output buffers, which are dependent upon pcm
253  * params, so once we have calculate params, we need buffer calculation as
254  * well.
255  */
256 static void skl_tplg_update_buffer_size(struct skl_sst *ctx,
257                                 struct skl_module_cfg *mcfg)
258 {
259         int multiplier = 1;
260         struct skl_module_fmt *in_fmt, *out_fmt;
261         int in_rate, out_rate;
262 
263 
264         /* Since fixups is applied to pin 0 only, ibs, obs needs
265          * change for pin 0 only
266          */
267         in_fmt = &mcfg->in_fmt[0];
268         out_fmt = &mcfg->out_fmt[0];
269 
270         if (mcfg->m_type == SKL_MODULE_TYPE_SRCINT)
271                 multiplier = 5;
272 
273         if (in_fmt->s_freq % 1000)
274                 in_rate = (in_fmt->s_freq / 1000) + 1;
275         else
276                 in_rate = (in_fmt->s_freq / 1000);
277 
278         mcfg->ibs = in_rate * (mcfg->in_fmt->channels) *
279                         (mcfg->in_fmt->bit_depth >> 3) *
280                         multiplier;
281 
282         if (mcfg->out_fmt->s_freq % 1000)
283                 out_rate = (mcfg->out_fmt->s_freq / 1000) + 1;
284         else
285                 out_rate = (mcfg->out_fmt->s_freq / 1000);
286 
287         mcfg->obs = out_rate * (mcfg->out_fmt->channels) *
288                         (mcfg->out_fmt->bit_depth >> 3) *
289                         multiplier;
290 }
291 
292 static int skl_tplg_update_be_blob(struct snd_soc_dapm_widget *w,
293                                                 struct skl_sst *ctx)
294 {
295         struct skl_module_cfg *m_cfg = w->priv;
296         int link_type, dir;
297         u32 ch, s_freq, s_fmt;
298         struct nhlt_specific_cfg *cfg;
299         struct skl *skl = get_skl_ctx(ctx->dev);
300 
301         /* check if we already have blob */
302         if (m_cfg->formats_config.caps_size > 0)
303                 return 0;
304 
305         dev_dbg(ctx->dev, "Applying default cfg blob\n");
306         switch (m_cfg->dev_type) {
307         case SKL_DEVICE_DMIC:
308                 link_type = NHLT_LINK_DMIC;
309                 dir = SNDRV_PCM_STREAM_CAPTURE;
310                 s_freq = m_cfg->in_fmt[0].s_freq;
311                 s_fmt = m_cfg->in_fmt[0].bit_depth;
312                 ch = m_cfg->in_fmt[0].channels;
313                 break;
314 
315         case SKL_DEVICE_I2S:
316                 link_type = NHLT_LINK_SSP;
317                 if (m_cfg->hw_conn_type == SKL_CONN_SOURCE) {
318                         dir = SNDRV_PCM_STREAM_PLAYBACK;
319                         s_freq = m_cfg->out_fmt[0].s_freq;
320                         s_fmt = m_cfg->out_fmt[0].bit_depth;
321                         ch = m_cfg->out_fmt[0].channels;
322                 } else {
323                         dir = SNDRV_PCM_STREAM_CAPTURE;
324                         s_freq = m_cfg->in_fmt[0].s_freq;
325                         s_fmt = m_cfg->in_fmt[0].bit_depth;
326                         ch = m_cfg->in_fmt[0].channels;
327                 }
328                 break;
329 
330         default:
331                 return -EINVAL;
332         }
333 
334         /* update the blob based on virtual bus_id and default params */
335         cfg = skl_get_ep_blob(skl, m_cfg->vbus_id, link_type,
336                                         s_fmt, ch, s_freq, dir);
337         if (cfg) {
338                 m_cfg->formats_config.caps_size = cfg->size;
339                 m_cfg->formats_config.caps = (u32 *) &cfg->caps;
340         } else {
341                 dev_err(ctx->dev, "Blob NULL for id %x type %d dirn %d\n",
342                                         m_cfg->vbus_id, link_type, dir);
343                 dev_err(ctx->dev, "PCM: ch %d, freq %d, fmt %d\n",
344                                         ch, s_freq, s_fmt);
345                 return -EIO;
346         }
347 
348         return 0;
349 }
350 
351 static void skl_tplg_update_module_params(struct snd_soc_dapm_widget *w,
352                                                         struct skl_sst *ctx)
353 {
354         struct skl_module_cfg *m_cfg = w->priv;
355         struct skl_pipe_params *params = m_cfg->pipe->p_params;
356         int p_conn_type = m_cfg->pipe->conn_type;
357         bool is_fe;
358 
359         if (!m_cfg->params_fixup)
360                 return;
361 
362         dev_dbg(ctx->dev, "Mconfig for widget=%s BEFORE updation\n",
363                                 w->name);
364 
365         skl_dump_mconfig(ctx, m_cfg);
366 
367         if (p_conn_type == SKL_PIPE_CONN_TYPE_FE)
368                 is_fe = true;
369         else
370                 is_fe = false;
371 
372         skl_tplg_update_params_fixup(m_cfg, params, is_fe);
373         skl_tplg_update_buffer_size(ctx, m_cfg);
374 
375         dev_dbg(ctx->dev, "Mconfig for widget=%s AFTER updation\n",
376                                 w->name);
377 
378         skl_dump_mconfig(ctx, m_cfg);
379 }
380 
381 /*
382  * A pipe can have multiple modules, each of them will be a DAPM widget as
383  * well. While managing a pipeline we need to get the list of all the
384  * widgets in a pipelines, so this helper - skl_tplg_get_pipe_widget() helps
385  * to get the SKL type widgets in that pipeline
386  */
387 static int skl_tplg_alloc_pipe_widget(struct device *dev,
388         struct snd_soc_dapm_widget *w, struct skl_pipe *pipe)
389 {
390         struct skl_module_cfg *src_module = NULL;
391         struct snd_soc_dapm_path *p = NULL;
392         struct skl_pipe_module *p_module = NULL;
393 
394         p_module = devm_kzalloc(dev, sizeof(*p_module), GFP_KERNEL);
395         if (!p_module)
396                 return -ENOMEM;
397 
398         p_module->w = w;
399         list_add_tail(&p_module->node, &pipe->w_list);
400 
401         snd_soc_dapm_widget_for_each_sink_path(w, p) {
402                 if ((p->sink->priv == NULL)
403                                 && (!is_skl_dsp_widget_type(w)))
404                         continue;
405 
406                 if ((p->sink->priv != NULL) && p->connect
407                                 && is_skl_dsp_widget_type(p->sink)) {
408 
409                         src_module = p->sink->priv;
410                         if (pipe->ppl_id == src_module->pipe->ppl_id)
411                                 skl_tplg_alloc_pipe_widget(dev,
412                                                         p->sink, pipe);
413                 }
414         }
415         return 0;
416 }
417 
418 /*
419  * some modules can have multiple params set from user control and
420  * need to be set after module is initialized. If set_param flag is
421  * set module params will be done after module is initialised.
422  */
423 static int skl_tplg_set_module_params(struct snd_soc_dapm_widget *w,
424                                                 struct skl_sst *ctx)
425 {
426         int i, ret;
427         struct skl_module_cfg *mconfig = w->priv;
428         const struct snd_kcontrol_new *k;
429         struct soc_bytes_ext *sb;
430         struct skl_algo_data *bc;
431         struct skl_specific_cfg *sp_cfg;
432 
433         if (mconfig->formats_config.caps_size > 0 &&
434                 mconfig->formats_config.set_params == SKL_PARAM_SET) {
435                 sp_cfg = &mconfig->formats_config;
436                 ret = skl_set_module_params(ctx, sp_cfg->caps,
437                                         sp_cfg->caps_size,
438                                         sp_cfg->param_id, mconfig);
439                 if (ret < 0)
440                         return ret;
441         }
442 
443         for (i = 0; i < w->num_kcontrols; i++) {
444                 k = &w->kcontrol_news[i];
445                 if (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
446                         sb = (void *) k->private_value;
447                         bc = (struct skl_algo_data *)sb->dobj.private;
448 
449                         if (bc->set_params == SKL_PARAM_SET) {
450                                 ret = skl_set_module_params(ctx,
451                                                 (u32 *)bc->params, bc->max,
452                                                 bc->param_id, mconfig);
453                                 if (ret < 0)
454                                         return ret;
455                         }
456                 }
457         }
458 
459         return 0;
460 }
461 
462 /*
463  * some module param can set from user control and this is required as
464  * when module is initailzed. if module param is required in init it is
465  * identifed by set_param flag. if set_param flag is not set, then this
466  * parameter needs to set as part of module init.
467  */
468 static int skl_tplg_set_module_init_data(struct snd_soc_dapm_widget *w)
469 {
470         const struct snd_kcontrol_new *k;
471         struct soc_bytes_ext *sb;
472         struct skl_algo_data *bc;
473         struct skl_module_cfg *mconfig = w->priv;
474         int i;
475 
476         for (i = 0; i < w->num_kcontrols; i++) {
477                 k = &w->kcontrol_news[i];
478                 if (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
479                         sb = (struct soc_bytes_ext *)k->private_value;
480                         bc = (struct skl_algo_data *)sb->dobj.private;
481 
482                         if (bc->set_params != SKL_PARAM_INIT)
483                                 continue;
484 
485                         mconfig->formats_config.caps = (u32 *)&bc->params;
486                         mconfig->formats_config.caps_size = bc->max;
487 
488                         break;
489                 }
490         }
491 
492         return 0;
493 }
494 
495 /*
496  * Inside a pipe instance, we can have various modules. These modules need
497  * to instantiated in DSP by invoking INIT_MODULE IPC, which is achieved by
498  * skl_init_module() routine, so invoke that for all modules in a pipeline
499  */
500 static int
501 skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe)
502 {
503         struct skl_pipe_module *w_module;
504         struct snd_soc_dapm_widget *w;
505         struct skl_module_cfg *mconfig;
506         struct skl_sst *ctx = skl->skl_sst;
507         int ret = 0;
508 
509         list_for_each_entry(w_module, &pipe->w_list, node) {
510                 w = w_module->w;
511                 mconfig = w->priv;
512 
513                 /* check resource available */
514                 if (!skl_is_pipe_mcps_avail(skl, mconfig))
515                         return -ENOMEM;
516 
517                 skl_tplg_alloc_pipe_mcps(skl, mconfig);
518 
519                 if (mconfig->is_loadable && ctx->dsp->fw_ops.load_mod) {
520                         ret = ctx->dsp->fw_ops.load_mod(ctx->dsp,
521                                 mconfig->id.module_id, mconfig->guid);
522                         if (ret < 0)
523                                 return ret;
524 
525                         mconfig->m_state = SKL_MODULE_LOADED;
526                 }
527 
528                 /* update blob if blob is null for be with default value */
529                 skl_tplg_update_be_blob(w, ctx);
530 
531                 /*
532                  * apply fix/conversion to module params based on
533                  * FE/BE params
534                  */
535                 skl_tplg_update_module_params(w, ctx);
536 
537                 skl_tplg_set_module_init_data(w);
538                 ret = skl_init_module(ctx, mconfig);
539                 if (ret < 0)
540                         return ret;
541 
542                 ret = skl_tplg_set_module_params(w, ctx);
543                 if (ret < 0)
544                         return ret;
545         }
546 
547         return 0;
548 }
549 
550 static int skl_tplg_unload_pipe_modules(struct skl_sst *ctx,
551          struct skl_pipe *pipe)
552 {
553         struct skl_pipe_module *w_module = NULL;
554         struct skl_module_cfg *mconfig = NULL;
555 
556         list_for_each_entry(w_module, &pipe->w_list, node) {
557                 mconfig  = w_module->w->priv;
558 
559                 if (mconfig->is_loadable && ctx->dsp->fw_ops.unload_mod &&
560                         mconfig->m_state > SKL_MODULE_UNINIT)
561                         return ctx->dsp->fw_ops.unload_mod(ctx->dsp,
562                                                 mconfig->id.module_id);
563         }
564 
565         /* no modules to unload in this path, so return */
566         return 0;
567 }
568 
569 /*
570  * Mixer module represents a pipeline. So in the Pre-PMU event of mixer we
571  * need create the pipeline. So we do following:
572  *   - check the resources
573  *   - Create the pipeline
574  *   - Initialize the modules in pipeline
575  *   - finally bind all modules together
576  */
577 static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
578                                                         struct skl *skl)
579 {
580         int ret;
581         struct skl_module_cfg *mconfig = w->priv;
582         struct skl_pipe_module *w_module;
583         struct skl_pipe *s_pipe = mconfig->pipe;
584         struct skl_module_cfg *src_module = NULL, *dst_module;
585         struct skl_sst *ctx = skl->skl_sst;
586 
587         /* check resource available */
588         if (!skl_is_pipe_mcps_avail(skl, mconfig))
589                 return -EBUSY;
590 
591         if (!skl_is_pipe_mem_avail(skl, mconfig))
592                 return -ENOMEM;
593 
594         skl_tplg_alloc_pipe_mem(skl, mconfig);
595         skl_tplg_alloc_pipe_mcps(skl, mconfig);
596 
597         /*
598          * Create a list of modules for pipe.
599          * This list contains modules from source to sink
600          */
601         ret = skl_create_pipeline(ctx, mconfig->pipe);
602         if (ret < 0)
603                 return ret;
604 
605         /*
606          * we create a w_list of all widgets in that pipe. This list is not
607          * freed on PMD event as widgets within a pipe are static. This
608          * saves us cycles to get widgets in pipe every time.
609          *
610          * So if we have already initialized all the widgets of a pipeline
611          * we skip, so check for list_empty and create the list if empty
612          */
613         if (list_empty(&s_pipe->w_list)) {
614                 ret = skl_tplg_alloc_pipe_widget(ctx->dev, w, s_pipe);
615                 if (ret < 0)
616                         return ret;
617         }
618 
619         /* Init all pipe modules from source to sink */
620         ret = skl_tplg_init_pipe_modules(skl, s_pipe);
621         if (ret < 0)
622                 return ret;
623 
624         /* Bind modules from source to sink */
625         list_for_each_entry(w_module, &s_pipe->w_list, node) {
626                 dst_module = w_module->w->priv;
627 
628                 if (src_module == NULL) {
629                         src_module = dst_module;
630                         continue;
631                 }
632 
633                 ret = skl_bind_modules(ctx, src_module, dst_module);
634                 if (ret < 0)
635                         return ret;
636 
637                 src_module = dst_module;
638         }
639 
640         return 0;
641 }
642 
643 /*
644  * Some modules require params to be set after the module is bound to
645  * all pins connected.
646  *
647  * The module provider initializes set_param flag for such modules and we
648  * send params after binding
649  */
650 static int skl_tplg_set_module_bind_params(struct snd_soc_dapm_widget *w,
651                         struct skl_module_cfg *mcfg, struct skl_sst *ctx)
652 {
653         int i, ret;
654         struct skl_module_cfg *mconfig = w->priv;
655         const struct snd_kcontrol_new *k;
656         struct soc_bytes_ext *sb;
657         struct skl_algo_data *bc;
658         struct skl_specific_cfg *sp_cfg;
659 
660         /*
661          * check all out/in pins are in bind state.
662          * if so set the module param
663          */
664         for (i = 0; i < mcfg->max_out_queue; i++) {
665                 if (mcfg->m_out_pin[i].pin_state != SKL_PIN_BIND_DONE)
666                         return 0;
667         }
668 
669         for (i = 0; i < mcfg->max_in_queue; i++) {
670                 if (mcfg->m_in_pin[i].pin_state != SKL_PIN_BIND_DONE)
671                         return 0;
672         }
673 
674         if (mconfig->formats_config.caps_size > 0 &&
675                 mconfig->formats_config.set_params == SKL_PARAM_BIND) {
676                 sp_cfg = &mconfig->formats_config;
677                 ret = skl_set_module_params(ctx, sp_cfg->caps,
678                                         sp_cfg->caps_size,
679                                         sp_cfg->param_id, mconfig);
680                 if (ret < 0)
681                         return ret;
682         }
683 
684         for (i = 0; i < w->num_kcontrols; i++) {
685                 k = &w->kcontrol_news[i];
686                 if (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
687                         sb = (void *) k->private_value;
688                         bc = (struct skl_algo_data *)sb->dobj.private;
689 
690                         if (bc->set_params == SKL_PARAM_BIND) {
691                                 ret = skl_set_module_params(ctx,
692                                                 (u32 *)bc->params, bc->max,
693                                                 bc->param_id, mconfig);
694                                 if (ret < 0)
695                                         return ret;
696                         }
697                 }
698         }
699 
700         return 0;
701 }
702 
703 static int skl_tplg_bind_sinks(struct snd_soc_dapm_widget *w,
704                                 struct skl *skl,
705                                 struct snd_soc_dapm_widget *src_w,
706                                 struct skl_module_cfg *src_mconfig)
707 {
708         struct snd_soc_dapm_path *p;
709         struct snd_soc_dapm_widget *sink = NULL, *next_sink = NULL;
710         struct skl_module_cfg *sink_mconfig;
711         struct skl_sst *ctx = skl->skl_sst;
712         int ret;
713 
714         snd_soc_dapm_widget_for_each_sink_path(w, p) {
715                 if (!p->connect)
716                         continue;
717 
718                 dev_dbg(ctx->dev, "%s: src widget=%s\n", __func__, w->name);
719                 dev_dbg(ctx->dev, "%s: sink widget=%s\n", __func__, p->sink->name);
720 
721                 next_sink = p->sink;
722 
723                 if (!is_skl_dsp_widget_type(p->sink))
724                         return skl_tplg_bind_sinks(p->sink, skl, src_w, src_mconfig);
725 
726                 /*
727                  * here we will check widgets in sink pipelines, so that
728                  * can be any widgets type and we are only interested if
729                  * they are ones used for SKL so check that first
730                  */
731                 if ((p->sink->priv != NULL) &&
732                                         is_skl_dsp_widget_type(p->sink)) {
733 
734                         sink = p->sink;
735                         sink_mconfig = sink->priv;
736 
737                         if (src_mconfig->m_state == SKL_MODULE_UNINIT ||
738                                 sink_mconfig->m_state == SKL_MODULE_UNINIT)
739                                 continue;
740 
741                         /* Bind source to sink, mixin is always source */
742                         ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig);
743                         if (ret)
744                                 return ret;
745 
746                         /* set module params after bind */
747                         skl_tplg_set_module_bind_params(src_w, src_mconfig, ctx);
748                         skl_tplg_set_module_bind_params(sink, sink_mconfig, ctx);
749 
750                         /* Start sinks pipe first */
751                         if (sink_mconfig->pipe->state != SKL_PIPE_STARTED) {
752                                 if (sink_mconfig->pipe->conn_type !=
753                                                         SKL_PIPE_CONN_TYPE_FE)
754                                         ret = skl_run_pipe(ctx,
755                                                         sink_mconfig->pipe);
756                                 if (ret)
757                                         return ret;
758                         }
759                 }
760         }
761 
762         if (!sink)
763                 return skl_tplg_bind_sinks(next_sink, skl, src_w, src_mconfig);
764 
765         return 0;
766 }
767 
768 /*
769  * A PGA represents a module in a pipeline. So in the Pre-PMU event of PGA
770  * we need to do following:
771  *   - Bind to sink pipeline
772  *      Since the sink pipes can be running and we don't get mixer event on
773  *      connect for already running mixer, we need to find the sink pipes
774  *      here and bind to them. This way dynamic connect works.
775  *   - Start sink pipeline, if not running
776  *   - Then run current pipe
777  */
778 static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
779                                                                 struct skl *skl)
780 {
781         struct skl_module_cfg *src_mconfig;
782         struct skl_sst *ctx = skl->skl_sst;
783         int ret = 0;
784 
785         src_mconfig = w->priv;
786 
787         /*
788          * find which sink it is connected to, bind with the sink,
789          * if sink is not started, start sink pipe first, then start
790          * this pipe
791          */
792         ret = skl_tplg_bind_sinks(w, skl, w, src_mconfig);
793         if (ret)
794                 return ret;
795 
796         /* Start source pipe last after starting all sinks */
797         if (src_mconfig->pipe->conn_type != SKL_PIPE_CONN_TYPE_FE)
798                 return skl_run_pipe(ctx, src_mconfig->pipe);
799 
800         return 0;
801 }
802 
803 static struct snd_soc_dapm_widget *skl_get_src_dsp_widget(
804                 struct snd_soc_dapm_widget *w, struct skl *skl)
805 {
806         struct snd_soc_dapm_path *p;
807         struct snd_soc_dapm_widget *src_w = NULL;
808         struct skl_sst *ctx = skl->skl_sst;
809 
810         snd_soc_dapm_widget_for_each_source_path(w, p) {
811                 src_w = p->source;
812                 if (!p->connect)
813                         continue;
814 
815                 dev_dbg(ctx->dev, "sink widget=%s\n", w->name);
816                 dev_dbg(ctx->dev, "src widget=%s\n", p->source->name);
817 
818                 /*
819                  * here we will check widgets in sink pipelines, so that can
820                  * be any widgets type and we are only interested if they are
821                  * ones used for SKL so check that first
822                  */
823                 if ((p->source->priv != NULL) &&
824                                         is_skl_dsp_widget_type(p->source)) {
825                         return p->source;
826                 }
827         }
828 
829         if (src_w != NULL)
830                 return skl_get_src_dsp_widget(src_w, skl);
831 
832         return NULL;
833 }
834 
835 /*
836  * in the Post-PMU event of mixer we need to do following:
837  *   - Check if this pipe is running
838  *   - if not, then
839  *      - bind this pipeline to its source pipeline
840  *        if source pipe is already running, this means it is a dynamic
841  *        connection and we need to bind only to that pipe
842  *      - start this pipeline
843  */
844 static int skl_tplg_mixer_dapm_post_pmu_event(struct snd_soc_dapm_widget *w,
845                                                         struct skl *skl)
846 {
847         int ret = 0;
848         struct snd_soc_dapm_widget *source, *sink;
849         struct skl_module_cfg *src_mconfig, *sink_mconfig;
850         struct skl_sst *ctx = skl->skl_sst;
851         int src_pipe_started = 0;
852 
853         sink = w;
854         sink_mconfig = sink->priv;
855 
856         /*
857          * If source pipe is already started, that means source is driving
858          * one more sink before this sink got connected, Since source is
859          * started, bind this sink to source and start this pipe.
860          */
861         source = skl_get_src_dsp_widget(w, skl);
862         if (source != NULL) {
863                 src_mconfig = source->priv;
864                 sink_mconfig = sink->priv;
865                 src_pipe_started = 1;
866 
867                 /*
868                  * check pipe state, then no need to bind or start the
869                  * pipe
870                  */
871                 if (src_mconfig->pipe->state != SKL_PIPE_STARTED)
872                         src_pipe_started = 0;
873         }
874 
875         if (src_pipe_started) {
876                 ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig);
877                 if (ret)
878                         return ret;
879 
880                 /* set module params after bind */
881                 skl_tplg_set_module_bind_params(source, src_mconfig, ctx);
882                 skl_tplg_set_module_bind_params(sink, sink_mconfig, ctx);
883 
884                 if (sink_mconfig->pipe->conn_type != SKL_PIPE_CONN_TYPE_FE)
885                         ret = skl_run_pipe(ctx, sink_mconfig->pipe);
886         }
887 
888         return ret;
889 }
890 
891 /*
892  * in the Pre-PMD event of mixer we need to do following:
893  *   - Stop the pipe
894  *   - find the source connections and remove that from dapm_path_list
895  *   - unbind with source pipelines if still connected
896  */
897 static int skl_tplg_mixer_dapm_pre_pmd_event(struct snd_soc_dapm_widget *w,
898                                                         struct skl *skl)
899 {
900         struct skl_module_cfg *src_mconfig, *sink_mconfig;
901         int ret = 0, i;
902         struct skl_sst *ctx = skl->skl_sst;
903 
904         sink_mconfig = w->priv;
905 
906         /* Stop the pipe */
907         ret = skl_stop_pipe(ctx, sink_mconfig->pipe);
908         if (ret)
909                 return ret;
910 
911         for (i = 0; i < sink_mconfig->max_in_queue; i++) {
912                 if (sink_mconfig->m_in_pin[i].pin_state == SKL_PIN_BIND_DONE) {
913                         src_mconfig = sink_mconfig->m_in_pin[i].tgt_mcfg;
914                         if (!src_mconfig)
915                                 continue;
916                         /*
917                          * If path_found == 1, that means pmd for source
918                          * pipe has not occurred, source is connected to
919                          * some other sink. so its responsibility of sink
920                          * to unbind itself from source.
921                          */
922                         ret = skl_stop_pipe(ctx, src_mconfig->pipe);
923                         if (ret < 0)
924                                 return ret;
925 
926                         ret = skl_unbind_modules(ctx,
927                                                 src_mconfig, sink_mconfig);
928                 }
929         }
930 
931         return ret;
932 }
933 
934 /*
935  * in the Post-PMD event of mixer we need to do following:
936  *   - Free the mcps used
937  *   - Free the mem used
938  *   - Unbind the modules within the pipeline
939  *   - Delete the pipeline (modules are not required to be explicitly
940  *     deleted, pipeline delete is enough here
941  */
942 static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
943                                                         struct skl *skl)
944 {
945         struct skl_module_cfg *mconfig = w->priv;
946         struct skl_pipe_module *w_module;
947         struct skl_module_cfg *src_module = NULL, *dst_module;
948         struct skl_sst *ctx = skl->skl_sst;
949         struct skl_pipe *s_pipe = mconfig->pipe;
950         int ret = 0;
951 
952         skl_tplg_free_pipe_mcps(skl, mconfig);
953         skl_tplg_free_pipe_mem(skl, mconfig);
954 
955         list_for_each_entry(w_module, &s_pipe->w_list, node) {
956                 dst_module = w_module->w->priv;
957 
958                 skl_tplg_free_pipe_mcps(skl, dst_module);
959                 if (src_module == NULL) {
960                         src_module = dst_module;
961                         continue;
962                 }
963 
964                 skl_unbind_modules(ctx, src_module, dst_module);
965                 src_module = dst_module;
966         }
967 
968         ret = skl_delete_pipe(ctx, mconfig->pipe);
969 
970         return skl_tplg_unload_pipe_modules(ctx, s_pipe);
971 }
972 
973 /*
974  * in the Post-PMD event of PGA we need to do following:
975  *   - Free the mcps used
976  *   - Stop the pipeline
977  *   - In source pipe is connected, unbind with source pipelines
978  */
979 static int skl_tplg_pga_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
980                                                                 struct skl *skl)
981 {
982         struct skl_module_cfg *src_mconfig, *sink_mconfig;
983         int ret = 0, i;
984         struct skl_sst *ctx = skl->skl_sst;
985 
986         src_mconfig = w->priv;
987 
988         /* Stop the pipe since this is a mixin module */
989         ret = skl_stop_pipe(ctx, src_mconfig->pipe);
990         if (ret)
991                 return ret;
992 
993         for (i = 0; i < src_mconfig->max_out_queue; i++) {
994                 if (src_mconfig->m_out_pin[i].pin_state == SKL_PIN_BIND_DONE) {
995                         sink_mconfig = src_mconfig->m_out_pin[i].tgt_mcfg;
996                         if (!sink_mconfig)
997                                 continue;
998                         /*
999                          * This is a connecter and if path is found that means
1000                          * unbind between source and sink has not happened yet
1001                          */
1002                         ret = skl_unbind_modules(ctx, src_mconfig,
1003                                                         sink_mconfig);
1004                 }
1005         }
1006 
1007         return ret;
1008 }
1009 
1010 /*
1011  * In modelling, we assume there will be ONLY one mixer in a pipeline.  If
1012  * mixer is not required then it is treated as static mixer aka vmixer with
1013  * a hard path to source module
1014  * So we don't need to check if source is started or not as hard path puts
1015  * dependency on each other
1016  */
1017 static int skl_tplg_vmixer_event(struct snd_soc_dapm_widget *w,
1018                                 struct snd_kcontrol *k, int event)
1019 {
1020         struct snd_soc_dapm_context *dapm = w->dapm;
1021         struct skl *skl = get_skl_ctx(dapm->dev);
1022 
1023         switch (event) {
1024         case SND_SOC_DAPM_PRE_PMU:
1025                 return skl_tplg_mixer_dapm_pre_pmu_event(w, skl);
1026 
1027         case SND_SOC_DAPM_POST_PMU:
1028                 return skl_tplg_mixer_dapm_post_pmu_event(w, skl);
1029 
1030         case SND_SOC_DAPM_PRE_PMD:
1031                 return skl_tplg_mixer_dapm_pre_pmd_event(w, skl);
1032 
1033         case SND_SOC_DAPM_POST_PMD:
1034                 return skl_tplg_mixer_dapm_post_pmd_event(w, skl);
1035         }
1036 
1037         return 0;
1038 }
1039 
1040 /*
1041  * In modelling, we assume there will be ONLY one mixer in a pipeline. If a
1042  * second one is required that is created as another pipe entity.
1043  * The mixer is responsible for pipe management and represent a pipeline
1044  * instance
1045  */
1046 static int skl_tplg_mixer_event(struct snd_soc_dapm_widget *w,
1047                                 struct snd_kcontrol *k, int event)
1048 {
1049         struct snd_soc_dapm_context *dapm = w->dapm;
1050         struct skl *skl = get_skl_ctx(dapm->dev);
1051 
1052         switch (event) {
1053         case SND_SOC_DAPM_PRE_PMU:
1054                 return skl_tplg_mixer_dapm_pre_pmu_event(w, skl);
1055 
1056         case SND_SOC_DAPM_POST_PMU:
1057                 return skl_tplg_mixer_dapm_post_pmu_event(w, skl);
1058 
1059         case SND_SOC_DAPM_PRE_PMD:
1060                 return skl_tplg_mixer_dapm_pre_pmd_event(w, skl);
1061 
1062         case SND_SOC_DAPM_POST_PMD:
1063                 return skl_tplg_mixer_dapm_post_pmd_event(w, skl);
1064         }
1065 
1066         return 0;
1067 }
1068 
1069 /*
1070  * In modelling, we assumed rest of the modules in pipeline are PGA. But we
1071  * are interested in last PGA (leaf PGA) in a pipeline to disconnect with
1072  * the sink when it is running (two FE to one BE or one FE to two BE)
1073  * scenarios
1074  */
1075 static int skl_tplg_pga_event(struct snd_soc_dapm_widget *w,
1076                         struct snd_kcontrol *k, int event)
1077 
1078 {
1079         struct snd_soc_dapm_context *dapm = w->dapm;
1080         struct skl *skl = get_skl_ctx(dapm->dev);
1081 
1082         switch (event) {
1083         case SND_SOC_DAPM_PRE_PMU:
1084                 return skl_tplg_pga_dapm_pre_pmu_event(w, skl);
1085 
1086         case SND_SOC_DAPM_POST_PMD:
1087                 return skl_tplg_pga_dapm_post_pmd_event(w, skl);
1088         }
1089 
1090         return 0;
1091 }
1092 
1093 static int skl_tplg_tlv_control_get(struct snd_kcontrol *kcontrol,
1094                         unsigned int __user *data, unsigned int size)
1095 {
1096         struct soc_bytes_ext *sb =
1097                         (struct soc_bytes_ext *)kcontrol->private_value;
1098         struct skl_algo_data *bc = (struct skl_algo_data *)sb->dobj.private;
1099         struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
1100         struct skl_module_cfg *mconfig = w->priv;
1101         struct skl *skl = get_skl_ctx(w->dapm->dev);
1102 
1103         if (w->power)
1104                 skl_get_module_params(skl->skl_sst, (u32 *)bc->params,
1105                                       bc->max, bc->param_id, mconfig);
1106 
1107         /* decrement size for TLV header */
1108         size -= 2 * sizeof(u32);
1109 
1110         /* check size as we don't want to send kernel data */
1111         if (size > bc->max)
1112                 size = bc->max;
1113 
1114         if (bc->params) {
1115                 if (copy_to_user(data, &bc->param_id, sizeof(u32)))
1116                         return -EFAULT;
1117                 if (copy_to_user(data + 1, &size, sizeof(u32)))
1118                         return -EFAULT;
1119                 if (copy_to_user(data + 2, bc->params, size))
1120                         return -EFAULT;
1121         }
1122 
1123         return 0;
1124 }
1125 
1126 #define SKL_PARAM_VENDOR_ID 0xff
1127 
1128 static int skl_tplg_tlv_control_set(struct snd_kcontrol *kcontrol,
1129                         const unsigned int __user *data, unsigned int size)
1130 {
1131         struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
1132         struct skl_module_cfg *mconfig = w->priv;
1133         struct soc_bytes_ext *sb =
1134                         (struct soc_bytes_ext *)kcontrol->private_value;
1135         struct skl_algo_data *ac = (struct skl_algo_data *)sb->dobj.private;
1136         struct skl *skl = get_skl_ctx(w->dapm->dev);
1137 
1138         if (ac->params) {
1139                 /*
1140                  * if the param_is is of type Vendor, firmware expects actual
1141                  * parameter id and size from the control.
1142                  */
1143                 if (ac->param_id == SKL_PARAM_VENDOR_ID) {
1144                         if (copy_from_user(ac->params, data, size))
1145                                 return -EFAULT;
1146                 } else {
1147                         if (copy_from_user(ac->params,
1148                                            data + 2, size))
1149                                 return -EFAULT;
1150                 }
1151 
1152                 if (w->power)
1153                         return skl_set_module_params(skl->skl_sst,
1154                                                 (u32 *)ac->params, ac->max,
1155                                                 ac->param_id, mconfig);
1156         }
1157 
1158         return 0;
1159 }
1160 
1161 /*
1162  * The FE params are passed by hw_params of the DAI.
1163  * On hw_params, the params are stored in Gateway module of the FE and we
1164  * need to calculate the format in DSP module configuration, that
1165  * conversion is done here
1166  */
1167 int skl_tplg_update_pipe_params(struct device *dev,
1168                         struct skl_module_cfg *mconfig,
1169                         struct skl_pipe_params *params)
1170 {
1171         struct skl_pipe *pipe = mconfig->pipe;
1172         struct skl_module_fmt *format = NULL;
1173 
1174         memcpy(pipe->p_params, params, sizeof(*params));
1175 
1176         if (params->stream == SNDRV_PCM_STREAM_PLAYBACK)
1177                 format = &mconfig->in_fmt[0];
1178         else
1179                 format = &mconfig->out_fmt[0];
1180 
1181         /* set the hw_params */
1182         format->s_freq = params->s_freq;
1183         format->channels = params->ch;
1184         format->valid_bit_depth = skl_get_bit_depth(params->s_fmt);
1185 
1186         /*
1187          * 16 bit is 16 bit container whereas 24 bit is in 32 bit
1188          * container so update bit depth accordingly
1189          */
1190         switch (format->valid_bit_depth) {
1191         case SKL_DEPTH_16BIT:
1192                 format->bit_depth = format->valid_bit_depth;
1193                 break;
1194 
1195         case SKL_DEPTH_24BIT:
1196         case SKL_DEPTH_32BIT:
1197                 format->bit_depth = SKL_DEPTH_32BIT;
1198                 break;
1199 
1200         default:
1201                 dev_err(dev, "Invalid bit depth %x for pipe\n",
1202                                 format->valid_bit_depth);
1203                 return -EINVAL;
1204         }
1205 
1206         if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1207                 mconfig->ibs = (format->s_freq / 1000) *
1208                                 (format->channels) *
1209                                 (format->bit_depth >> 3);
1210         } else {
1211                 mconfig->obs = (format->s_freq / 1000) *
1212                                 (format->channels) *
1213                                 (format->bit_depth >> 3);
1214         }
1215 
1216         return 0;
1217 }
1218 
1219 /*
1220  * Query the module config for the FE DAI
1221  * This is used to find the hw_params set for that DAI and apply to FE
1222  * pipeline
1223  */
1224 struct skl_module_cfg *
1225 skl_tplg_fe_get_cpr_module(struct snd_soc_dai *dai, int stream)
1226 {
1227         struct snd_soc_dapm_widget *w;
1228         struct snd_soc_dapm_path *p = NULL;
1229 
1230         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1231                 w = dai->playback_widget;
1232                 snd_soc_dapm_widget_for_each_sink_path(w, p) {
1233                         if (p->connect && p->sink->power &&
1234                                         !is_skl_dsp_widget_type(p->sink))
1235                                 continue;
1236 
1237                         if (p->sink->priv) {
1238                                 dev_dbg(dai->dev, "set params for %s\n",
1239                                                 p->sink->name);
1240                                 return p->sink->priv;
1241                         }
1242                 }
1243         } else {
1244                 w = dai->capture_widget;
1245                 snd_soc_dapm_widget_for_each_source_path(w, p) {
1246                         if (p->connect && p->source->power &&
1247                                         !is_skl_dsp_widget_type(p->source))
1248                                 continue;
1249 
1250                         if (p->source->priv) {
1251                                 dev_dbg(dai->dev, "set params for %s\n",
1252                                                 p->source->name);
1253                                 return p->source->priv;
1254                         }
1255                 }
1256         }
1257 
1258         return NULL;
1259 }
1260 
1261 static struct skl_module_cfg *skl_get_mconfig_pb_cpr(
1262                 struct snd_soc_dai *dai, struct snd_soc_dapm_widget *w)
1263 {
1264         struct snd_soc_dapm_path *p;
1265         struct skl_module_cfg *mconfig = NULL;
1266 
1267         snd_soc_dapm_widget_for_each_source_path(w, p) {
1268                 if (w->endpoints[SND_SOC_DAPM_DIR_OUT] > 0) {
1269                         if (p->connect &&
1270                                     (p->sink->id == snd_soc_dapm_aif_out) &&
1271                                     p->source->priv) {
1272                                 mconfig = p->source->priv;
1273                                 return mconfig;
1274                         }
1275                         mconfig = skl_get_mconfig_pb_cpr(dai, p->source);
1276                         if (mconfig)
1277                                 return mconfig;
1278                 }
1279         }
1280         return mconfig;
1281 }
1282 
1283 static struct skl_module_cfg *skl_get_mconfig_cap_cpr(
1284                 struct snd_soc_dai *dai, struct snd_soc_dapm_widget *w)
1285 {
1286         struct snd_soc_dapm_path *p;
1287         struct skl_module_cfg *mconfig = NULL;
1288 
1289         snd_soc_dapm_widget_for_each_sink_path(w, p) {
1290                 if (w->endpoints[SND_SOC_DAPM_DIR_IN] > 0) {
1291                         if (p->connect &&
1292                                     (p->source->id == snd_soc_dapm_aif_in) &&
1293                                     p->sink->priv) {
1294                                 mconfig = p->sink->priv;
1295                                 return mconfig;
1296                         }
1297                         mconfig = skl_get_mconfig_cap_cpr(dai, p->sink);
1298                         if (mconfig)
1299                                 return mconfig;
1300                 }
1301         }
1302         return mconfig;
1303 }
1304 
1305 struct skl_module_cfg *
1306 skl_tplg_be_get_cpr_module(struct snd_soc_dai *dai, int stream)
1307 {
1308         struct snd_soc_dapm_widget *w;
1309         struct skl_module_cfg *mconfig;
1310 
1311         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1312                 w = dai->playback_widget;
1313                 mconfig = skl_get_mconfig_pb_cpr(dai, w);
1314         } else {
1315                 w = dai->capture_widget;
1316                 mconfig = skl_get_mconfig_cap_cpr(dai, w);
1317         }
1318         return mconfig;
1319 }
1320 
1321 static u8 skl_tplg_be_link_type(int dev_type)
1322 {
1323         int ret;
1324 
1325         switch (dev_type) {
1326         case SKL_DEVICE_BT:
1327                 ret = NHLT_LINK_SSP;
1328                 break;
1329 
1330         case SKL_DEVICE_DMIC:
1331                 ret = NHLT_LINK_DMIC;
1332                 break;
1333 
1334         case SKL_DEVICE_I2S:
1335                 ret = NHLT_LINK_SSP;
1336                 break;
1337 
1338         case SKL_DEVICE_HDALINK:
1339                 ret = NHLT_LINK_HDA;
1340                 break;
1341 
1342         default:
1343                 ret = NHLT_LINK_INVALID;
1344                 break;
1345         }
1346 
1347         return ret;
1348 }
1349 
1350 /*
1351  * Fill the BE gateway parameters
1352  * The BE gateway expects a blob of parameters which are kept in the ACPI
1353  * NHLT blob, so query the blob for interface type (i2s/pdm) and instance.
1354  * The port can have multiple settings so pick based on the PCM
1355  * parameters
1356  */
1357 static int skl_tplg_be_fill_pipe_params(struct snd_soc_dai *dai,
1358                                 struct skl_module_cfg *mconfig,
1359                                 struct skl_pipe_params *params)
1360 {
1361         struct skl_pipe *pipe = mconfig->pipe;
1362         struct nhlt_specific_cfg *cfg;
1363         struct skl *skl = get_skl_ctx(dai->dev);
1364         int link_type = skl_tplg_be_link_type(mconfig->dev_type);
1365 
1366         memcpy(pipe->p_params, params, sizeof(*params));
1367 
1368         if (link_type == NHLT_LINK_HDA)
1369                 return 0;
1370 
1371         /* update the blob based on virtual bus_id*/
1372         cfg = skl_get_ep_blob(skl, mconfig->vbus_id, link_type,
1373                                         params->s_fmt, params->ch,
1374                                         params->s_freq, params->stream);
1375         if (cfg) {
1376                 mconfig->formats_config.caps_size = cfg->size;
1377                 mconfig->formats_config.caps = (u32 *) &cfg->caps;
1378         } else {
1379                 dev_err(dai->dev, "Blob NULL for id %x type %d dirn %d\n",
1380                                         mconfig->vbus_id, link_type,
1381                                         params->stream);
1382                 dev_err(dai->dev, "PCM: ch %d, freq %d, fmt %d\n",
1383                                  params->ch, params->s_freq, params->s_fmt);
1384                 return -EINVAL;
1385         }
1386 
1387         return 0;
1388 }
1389 
1390 static int skl_tplg_be_set_src_pipe_params(struct snd_soc_dai *dai,
1391                                 struct snd_soc_dapm_widget *w,
1392                                 struct skl_pipe_params *params)
1393 {
1394         struct snd_soc_dapm_path *p;
1395         int ret = -EIO;
1396 
1397         snd_soc_dapm_widget_for_each_source_path(w, p) {
1398                 if (p->connect && is_skl_dsp_widget_type(p->source) &&
1399                                                 p->source->priv) {
1400 
1401                         ret = skl_tplg_be_fill_pipe_params(dai,
1402                                                 p->source->priv, params);
1403                         if (ret < 0)
1404                                 return ret;
1405                 } else {
1406                         ret = skl_tplg_be_set_src_pipe_params(dai,
1407                                                 p->source, params);
1408                         if (ret < 0)
1409                                 return ret;
1410                 }
1411         }
1412 
1413         return ret;
1414 }
1415 
1416 static int skl_tplg_be_set_sink_pipe_params(struct snd_soc_dai *dai,
1417         struct snd_soc_dapm_widget *w, struct skl_pipe_params *params)
1418 {
1419         struct snd_soc_dapm_path *p = NULL;
1420         int ret = -EIO;
1421 
1422         snd_soc_dapm_widget_for_each_sink_path(w, p) {
1423                 if (p->connect && is_skl_dsp_widget_type(p->sink) &&
1424                                                 p->sink->priv) {
1425 
1426                         ret = skl_tplg_be_fill_pipe_params(dai,
1427                                                 p->sink->priv, params);
1428                         if (ret < 0)
1429                                 return ret;
1430                 } else {
1431                         ret = skl_tplg_be_set_sink_pipe_params(
1432                                                 dai, p->sink, params);
1433                         if (ret < 0)
1434                                 return ret;
1435                 }
1436         }
1437 
1438         return ret;
1439 }
1440 
1441 /*
1442  * BE hw_params can be a source parameters (capture) or sink parameters
1443  * (playback). Based on sink and source we need to either find the source
1444  * list or the sink list and set the pipeline parameters
1445  */
1446 int skl_tplg_be_update_params(struct snd_soc_dai *dai,
1447                                 struct skl_pipe_params *params)
1448 {
1449         struct snd_soc_dapm_widget *w;
1450 
1451         if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1452                 w = dai->playback_widget;
1453 
1454                 return skl_tplg_be_set_src_pipe_params(dai, w, params);
1455 
1456         } else {
1457                 w = dai->capture_widget;
1458 
1459                 return skl_tplg_be_set_sink_pipe_params(dai, w, params);
1460         }
1461 
1462         return 0;
1463 }
1464 
1465 static const struct snd_soc_tplg_widget_events skl_tplg_widget_ops[] = {
1466         {SKL_MIXER_EVENT, skl_tplg_mixer_event},
1467         {SKL_VMIXER_EVENT, skl_tplg_vmixer_event},
1468         {SKL_PGA_EVENT, skl_tplg_pga_event},
1469 };
1470 
1471 static const struct snd_soc_tplg_bytes_ext_ops skl_tlv_ops[] = {
1472         {SKL_CONTROL_TYPE_BYTE_TLV, skl_tplg_tlv_control_get,
1473                                         skl_tplg_tlv_control_set},
1474 };
1475 
1476 /*
1477  * The topology binary passes the pin info for a module so initialize the pin
1478  * info passed into module instance
1479  */
1480 static void skl_fill_module_pin_info(struct skl_dfw_module_pin *dfw_pin,
1481                                                 struct skl_module_pin *m_pin,
1482                                                 bool is_dynamic, int max_pin)
1483 {
1484         int i;
1485 
1486         for (i = 0; i < max_pin; i++) {
1487                 m_pin[i].id.module_id = dfw_pin[i].module_id;
1488                 m_pin[i].id.instance_id = dfw_pin[i].instance_id;
1489                 m_pin[i].in_use = false;
1490                 m_pin[i].is_dynamic = is_dynamic;
1491                 m_pin[i].pin_state = SKL_PIN_UNBIND;
1492         }
1493 }
1494 
1495 /*
1496  * Add pipeline from topology binary into driver pipeline list
1497  *
1498  * If already added we return that instance
1499  * Otherwise we create a new instance and add into driver list
1500  */
1501 static struct skl_pipe *skl_tplg_add_pipe(struct device *dev,
1502                         struct skl *skl, struct skl_dfw_pipe *dfw_pipe)
1503 {
1504         struct skl_pipeline *ppl;
1505         struct skl_pipe *pipe;
1506         struct skl_pipe_params *params;
1507 
1508         list_for_each_entry(ppl, &skl->ppl_list, node) {
1509                 if (ppl->pipe->ppl_id == dfw_pipe->pipe_id)
1510                         return ppl->pipe;
1511         }
1512 
1513         ppl = devm_kzalloc(dev, sizeof(*ppl), GFP_KERNEL);
1514         if (!ppl)
1515                 return NULL;
1516 
1517         pipe = devm_kzalloc(dev, sizeof(*pipe), GFP_KERNEL);
1518         if (!pipe)
1519                 return NULL;
1520 
1521         params = devm_kzalloc(dev, sizeof(*params), GFP_KERNEL);
1522         if (!params)
1523                 return NULL;
1524 
1525         pipe->ppl_id = dfw_pipe->pipe_id;
1526         pipe->memory_pages = dfw_pipe->memory_pages;
1527         pipe->pipe_priority = dfw_pipe->pipe_priority;
1528         pipe->conn_type = dfw_pipe->conn_type;
1529         pipe->state = SKL_PIPE_INVALID;
1530         pipe->p_params = params;
1531         INIT_LIST_HEAD(&pipe->w_list);
1532 
1533         ppl->pipe = pipe;
1534         list_add(&ppl->node, &skl->ppl_list);
1535 
1536         return ppl->pipe;
1537 }
1538 
1539 static void skl_tplg_fill_fmt(struct skl_module_fmt *dst_fmt,
1540                                 struct skl_dfw_module_fmt *src_fmt,
1541                                 int pins)
1542 {
1543         int i;
1544 
1545         for (i = 0; i < pins; i++) {
1546                 dst_fmt[i].channels  = src_fmt[i].channels;
1547                 dst_fmt[i].s_freq = src_fmt[i].freq;
1548                 dst_fmt[i].bit_depth = src_fmt[i].bit_depth;
1549                 dst_fmt[i].valid_bit_depth = src_fmt[i].valid_bit_depth;
1550                 dst_fmt[i].ch_cfg = src_fmt[i].ch_cfg;
1551                 dst_fmt[i].ch_map = src_fmt[i].ch_map;
1552                 dst_fmt[i].interleaving_style = src_fmt[i].interleaving_style;
1553                 dst_fmt[i].sample_type = src_fmt[i].sample_type;
1554         }
1555 }
1556 
1557 /*
1558  * Topology core widget load callback
1559  *
1560  * This is used to save the private data for each widget which gives
1561  * information to the driver about module and pipeline parameters which DSP
1562  * FW expects like ids, resource values, formats etc
1563  */
1564 static int skl_tplg_widget_load(struct snd_soc_component *cmpnt,
1565                                 struct snd_soc_dapm_widget *w,
1566                                 struct snd_soc_tplg_dapm_widget *tplg_w)
1567 {
1568         int ret;
1569         struct hdac_ext_bus *ebus = snd_soc_component_get_drvdata(cmpnt);
1570         struct skl *skl = ebus_to_skl(ebus);
1571         struct hdac_bus *bus = ebus_to_hbus(ebus);
1572         struct skl_module_cfg *mconfig;
1573         struct skl_pipe *pipe;
1574         struct skl_dfw_module *dfw_config =
1575                                 (struct skl_dfw_module *)tplg_w->priv.data;
1576 
1577         if (!tplg_w->priv.size)
1578                 goto bind_event;
1579 
1580         mconfig = devm_kzalloc(bus->dev, sizeof(*mconfig), GFP_KERNEL);
1581 
1582         if (!mconfig)
1583                 return -ENOMEM;
1584 
1585         w->priv = mconfig;
1586         memcpy(&mconfig->guid, &dfw_config->uuid, 16);
1587 
1588         mconfig->id.module_id = dfw_config->module_id;
1589         mconfig->id.instance_id = dfw_config->instance_id;
1590         mconfig->mcps = dfw_config->max_mcps;
1591         mconfig->ibs = dfw_config->ibs;
1592         mconfig->obs = dfw_config->obs;
1593         mconfig->core_id = dfw_config->core_id;
1594         mconfig->max_in_queue = dfw_config->max_in_queue;
1595         mconfig->max_out_queue = dfw_config->max_out_queue;
1596         mconfig->is_loadable = dfw_config->is_loadable;
1597         skl_tplg_fill_fmt(mconfig->in_fmt, dfw_config->in_fmt,
1598                                                 MODULE_MAX_IN_PINS);
1599         skl_tplg_fill_fmt(mconfig->out_fmt, dfw_config->out_fmt,
1600                                                 MODULE_MAX_OUT_PINS);
1601 
1602         mconfig->params_fixup = dfw_config->params_fixup;
1603         mconfig->converter = dfw_config->converter;
1604         mconfig->m_type = dfw_config->module_type;
1605         mconfig->vbus_id = dfw_config->vbus_id;
1606         mconfig->mem_pages = dfw_config->mem_pages;
1607 
1608         pipe = skl_tplg_add_pipe(bus->dev, skl, &dfw_config->pipe);
1609         if (pipe)
1610                 mconfig->pipe = pipe;
1611 
1612         mconfig->dev_type = dfw_config->dev_type;
1613         mconfig->hw_conn_type = dfw_config->hw_conn_type;
1614         mconfig->time_slot = dfw_config->time_slot;
1615         mconfig->formats_config.caps_size = dfw_config->caps.caps_size;
1616 
1617         mconfig->m_in_pin = devm_kzalloc(bus->dev, (mconfig->max_in_queue) *
1618                                                 sizeof(*mconfig->m_in_pin),
1619                                                 GFP_KERNEL);
1620         if (!mconfig->m_in_pin)
1621                 return -ENOMEM;
1622 
1623         mconfig->m_out_pin = devm_kzalloc(bus->dev, (mconfig->max_out_queue) *
1624                                                 sizeof(*mconfig->m_out_pin),
1625                                                 GFP_KERNEL);
1626         if (!mconfig->m_out_pin)
1627                 return -ENOMEM;
1628 
1629         skl_fill_module_pin_info(dfw_config->in_pin, mconfig->m_in_pin,
1630                                                 dfw_config->is_dynamic_in_pin,
1631                                                 mconfig->max_in_queue);
1632 
1633         skl_fill_module_pin_info(dfw_config->out_pin, mconfig->m_out_pin,
1634                                                  dfw_config->is_dynamic_out_pin,
1635                                                         mconfig->max_out_queue);
1636 
1637 
1638         if (mconfig->formats_config.caps_size == 0)
1639                 goto bind_event;
1640 
1641         mconfig->formats_config.caps = (u32 *)devm_kzalloc(bus->dev,
1642                         mconfig->formats_config.caps_size, GFP_KERNEL);
1643 
1644         if (mconfig->formats_config.caps == NULL)
1645                 return -ENOMEM;
1646 
1647         memcpy(mconfig->formats_config.caps, dfw_config->caps.caps,
1648                                                  dfw_config->caps.caps_size);
1649         mconfig->formats_config.param_id = dfw_config->caps.param_id;
1650         mconfig->formats_config.set_params = dfw_config->caps.set_params;
1651 
1652 bind_event:
1653         if (tplg_w->event_type == 0) {
1654                 dev_dbg(bus->dev, "ASoC: No event handler required\n");
1655                 return 0;
1656         }
1657 
1658         ret = snd_soc_tplg_widget_bind_event(w, skl_tplg_widget_ops,
1659                                         ARRAY_SIZE(skl_tplg_widget_ops),
1660                                         tplg_w->event_type);
1661 
1662         if (ret) {
1663                 dev_err(bus->dev, "%s: No matching event handlers found for %d\n",
1664                                         __func__, tplg_w->event_type);
1665                 return -EINVAL;
1666         }
1667 
1668         return 0;
1669 }
1670 
1671 static int skl_init_algo_data(struct device *dev, struct soc_bytes_ext *be,
1672                                         struct snd_soc_tplg_bytes_control *bc)
1673 {
1674         struct skl_algo_data *ac;
1675         struct skl_dfw_algo_data *dfw_ac =
1676                                 (struct skl_dfw_algo_data *)bc->priv.data;
1677 
1678         ac = devm_kzalloc(dev, sizeof(*ac), GFP_KERNEL);
1679         if (!ac)
1680                 return -ENOMEM;
1681 
1682         /* Fill private data */
1683         ac->max = dfw_ac->max;
1684         ac->param_id = dfw_ac->param_id;
1685         ac->set_params = dfw_ac->set_params;
1686 
1687         if (ac->max) {
1688                 ac->params = (char *) devm_kzalloc(dev, ac->max, GFP_KERNEL);
1689                 if (!ac->params)
1690                         return -ENOMEM;
1691 
1692                 memcpy(ac->params, dfw_ac->params, ac->max);
1693         }
1694 
1695         be->dobj.private  = ac;
1696         return 0;
1697 }
1698 
1699 static int skl_tplg_control_load(struct snd_soc_component *cmpnt,
1700                                 struct snd_kcontrol_new *kctl,
1701                                 struct snd_soc_tplg_ctl_hdr *hdr)
1702 {
1703         struct soc_bytes_ext *sb;
1704         struct snd_soc_tplg_bytes_control *tplg_bc;
1705         struct hdac_ext_bus *ebus  = snd_soc_component_get_drvdata(cmpnt);
1706         struct hdac_bus *bus = ebus_to_hbus(ebus);
1707 
1708         switch (hdr->ops.info) {
1709         case SND_SOC_TPLG_CTL_BYTES:
1710                 tplg_bc = container_of(hdr,
1711                                 struct snd_soc_tplg_bytes_control, hdr);
1712                 if (kctl->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1713                         sb = (struct soc_bytes_ext *)kctl->private_value;
1714                         if (tplg_bc->priv.size)
1715                                 return skl_init_algo_data(
1716                                                 bus->dev, sb, tplg_bc);
1717                 }
1718                 break;
1719 
1720         default:
1721                 dev_warn(bus->dev, "Control load not supported %d:%d:%d\n",
1722                         hdr->ops.get, hdr->ops.put, hdr->ops.info);
1723                 break;
1724         }
1725 
1726         return 0;
1727 }
1728 
1729 static struct snd_soc_tplg_ops skl_tplg_ops  = {
1730         .widget_load = skl_tplg_widget_load,
1731         .control_load = skl_tplg_control_load,
1732         .bytes_ext_ops = skl_tlv_ops,
1733         .bytes_ext_ops_count = ARRAY_SIZE(skl_tlv_ops),
1734 };
1735 
1736 /* This will be read from topology manifest, currently defined here */
1737 #define SKL_MAX_MCPS 30000000
1738 #define SKL_FW_MAX_MEM 1000000
1739 
1740 /*
1741  * SKL topology init routine
1742  */
1743 int skl_tplg_init(struct snd_soc_platform *platform, struct hdac_ext_bus *ebus)
1744 {
1745         int ret;
1746         const struct firmware *fw;
1747         struct hdac_bus *bus = ebus_to_hbus(ebus);
1748         struct skl *skl = ebus_to_skl(ebus);
1749 
1750         ret = request_firmware(&fw, skl->tplg_name, bus->dev);
1751         if (ret < 0) {
1752                 dev_err(bus->dev, "tplg fw %s load failed with %d\n",
1753                                 skl->tplg_name, ret);
1754                 ret = request_firmware(&fw, "dfw_sst.bin", bus->dev);
1755                 if (ret < 0) {
1756                         dev_err(bus->dev, "Fallback tplg fw %s load failed with %d\n",
1757                                         "dfw_sst.bin", ret);
1758                         return ret;
1759                 }
1760         }
1761 
1762         /*
1763          * The complete tplg for SKL is loaded as index 0, we don't use
1764          * any other index
1765          */
1766         ret = snd_soc_tplg_component_load(&platform->component,
1767                                         &skl_tplg_ops, fw, 0);
1768         if (ret < 0) {
1769                 dev_err(bus->dev, "tplg component load failed%d\n", ret);
1770                 release_firmware(fw);
1771                 return -EINVAL;
1772         }
1773 
1774         skl->resource.max_mcps = SKL_MAX_MCPS;
1775         skl->resource.max_mem = SKL_FW_MAX_MEM;
1776 
1777         skl->tplg = fw;
1778 
1779         return 0;
1780 }
1781 

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