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- // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
- //
- // This file is provided under a dual BSD/GPLv2 license. When using or
- // redistributing this file, you may do so under either license.
- //
- // Copyright(c) 2019 Intel Corporation. All rights reserved.
- //
- // Author: Ranjani Sridharan <[email protected]>
- //
- #include <linux/bitfield.h>
- #include <trace/events/sof.h>
- #include "sof-audio.h"
- #include "sof-of-dev.h"
- #include "ops.h"
- static void sof_reset_route_setup_status(struct snd_sof_dev *sdev, struct snd_sof_widget *widget)
- {
- const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
- struct snd_sof_route *sroute;
- list_for_each_entry(sroute, &sdev->route_list, list)
- if (sroute->src_widget == widget || sroute->sink_widget == widget) {
- if (sroute->setup && tplg_ops->route_free)
- tplg_ops->route_free(sdev, sroute);
- sroute->setup = false;
- }
- }
- int sof_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
- {
- const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
- int err = 0;
- int ret;
- if (!swidget->private)
- return 0;
- trace_sof_widget_free(swidget);
- /* only free when use_count is 0 */
- if (--swidget->use_count)
- return 0;
- /* reset route setup status for all routes that contain this widget */
- sof_reset_route_setup_status(sdev, swidget);
- /* continue to disable core even if IPC fails */
- if (tplg_ops->widget_free)
- err = tplg_ops->widget_free(sdev, swidget);
- /*
- * disable widget core. continue to route setup status and complete flag
- * even if this fails and return the appropriate error
- */
- ret = snd_sof_dsp_core_put(sdev, swidget->core);
- if (ret < 0) {
- dev_err(sdev->dev, "error: failed to disable target core: %d for widget %s\n",
- swidget->core, swidget->widget->name);
- if (!err)
- err = ret;
- }
- /*
- * free the scheduler widget (same as pipe_widget) associated with the current swidget.
- * skip for static pipelines
- */
- if (swidget->dynamic_pipeline_widget && swidget->id != snd_soc_dapm_scheduler) {
- ret = sof_widget_free(sdev, swidget->pipe_widget);
- if (ret < 0 && !err)
- err = ret;
- swidget->pipe_widget->complete = 0;
- }
- if (!err)
- dev_dbg(sdev->dev, "widget %s freed\n", swidget->widget->name);
- return err;
- }
- EXPORT_SYMBOL(sof_widget_free);
- int sof_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
- {
- const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
- int ret;
- /* skip if there is no private data */
- if (!swidget->private)
- return 0;
- trace_sof_widget_setup(swidget);
- /* widget already set up */
- if (++swidget->use_count > 1)
- return 0;
- /*
- * The scheduler widget for a pipeline is not part of the connected DAPM
- * widget list and it needs to be set up before the widgets in the pipeline
- * are set up. The use_count for the scheduler widget is incremented for every
- * widget in a given pipeline to ensure that it is freed only after the last
- * widget in the pipeline is freed. Skip setting up scheduler widget for static pipelines.
- */
- if (swidget->dynamic_pipeline_widget && swidget->id != snd_soc_dapm_scheduler) {
- if (!swidget->pipe_widget) {
- dev_err(sdev->dev, "No scheduler widget set for %s\n",
- swidget->widget->name);
- ret = -EINVAL;
- goto use_count_dec;
- }
- ret = sof_widget_setup(sdev, swidget->pipe_widget);
- if (ret < 0)
- goto use_count_dec;
- }
- /* enable widget core */
- ret = snd_sof_dsp_core_get(sdev, swidget->core);
- if (ret < 0) {
- dev_err(sdev->dev, "error: failed to enable target core for widget %s\n",
- swidget->widget->name);
- goto pipe_widget_free;
- }
- /* setup widget in the DSP */
- if (tplg_ops->widget_setup) {
- ret = tplg_ops->widget_setup(sdev, swidget);
- if (ret < 0)
- goto core_put;
- }
- /* send config for DAI components */
- if (WIDGET_IS_DAI(swidget->id)) {
- unsigned int flags = SOF_DAI_CONFIG_FLAGS_NONE;
- if (tplg_ops->dai_config) {
- ret = tplg_ops->dai_config(sdev, swidget, flags, NULL);
- if (ret < 0)
- goto widget_free;
- }
- }
- /* restore kcontrols for widget */
- if (tplg_ops->control->widget_kcontrol_setup) {
- ret = tplg_ops->control->widget_kcontrol_setup(sdev, swidget);
- if (ret < 0)
- goto widget_free;
- }
- dev_dbg(sdev->dev, "widget %s setup complete\n", swidget->widget->name);
- return 0;
- widget_free:
- /* widget use_count and core ref_count will both be decremented by sof_widget_free() */
- sof_widget_free(sdev, swidget);
- core_put:
- snd_sof_dsp_core_put(sdev, swidget->core);
- pipe_widget_free:
- if (swidget->id != snd_soc_dapm_scheduler)
- sof_widget_free(sdev, swidget->pipe_widget);
- use_count_dec:
- swidget->use_count--;
- return ret;
- }
- EXPORT_SYMBOL(sof_widget_setup);
- int sof_route_setup(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *wsource,
- struct snd_soc_dapm_widget *wsink)
- {
- const struct sof_ipc_tplg_ops *ipc_tplg_ops = sdev->ipc->ops->tplg;
- struct snd_sof_widget *src_widget = wsource->dobj.private;
- struct snd_sof_widget *sink_widget = wsink->dobj.private;
- struct snd_sof_route *sroute;
- bool route_found = false;
- int ret;
- /* ignore routes involving virtual widgets in topology */
- switch (src_widget->id) {
- case snd_soc_dapm_out_drv:
- case snd_soc_dapm_output:
- case snd_soc_dapm_input:
- return 0;
- default:
- break;
- }
- switch (sink_widget->id) {
- case snd_soc_dapm_out_drv:
- case snd_soc_dapm_output:
- case snd_soc_dapm_input:
- return 0;
- default:
- break;
- }
- /* find route matching source and sink widgets */
- list_for_each_entry(sroute, &sdev->route_list, list)
- if (sroute->src_widget == src_widget && sroute->sink_widget == sink_widget) {
- route_found = true;
- break;
- }
- if (!route_found) {
- dev_err(sdev->dev, "error: cannot find SOF route for source %s -> %s sink\n",
- wsource->name, wsink->name);
- return -EINVAL;
- }
- /* nothing to do if route is already set up */
- if (sroute->setup)
- return 0;
- ret = ipc_tplg_ops->route_setup(sdev, sroute);
- if (ret < 0)
- return ret;
- sroute->setup = true;
- return 0;
- }
- static int sof_setup_pipeline_connections(struct snd_sof_dev *sdev,
- struct snd_soc_dapm_widget_list *list, int dir)
- {
- struct snd_soc_dapm_widget *widget;
- struct snd_soc_dapm_path *p;
- int ret;
- int i;
- /*
- * Set up connections between widgets in the sink/source paths based on direction.
- * Some non-SOF widgets exist in topology either for compatibility or for the
- * purpose of connecting a pipeline from a host to a DAI in order to receive the DAPM
- * events. But they are not handled by the firmware. So ignore them.
- */
- if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
- for_each_dapm_widgets(list, i, widget) {
- if (!widget->dobj.private)
- continue;
- snd_soc_dapm_widget_for_each_sink_path(widget, p)
- if (p->sink->dobj.private) {
- ret = sof_route_setup(sdev, widget, p->sink);
- if (ret < 0)
- return ret;
- }
- }
- } else {
- for_each_dapm_widgets(list, i, widget) {
- if (!widget->dobj.private)
- continue;
- snd_soc_dapm_widget_for_each_source_path(widget, p)
- if (p->source->dobj.private) {
- ret = sof_route_setup(sdev, p->source, widget);
- if (ret < 0)
- return ret;
- }
- }
- }
- return 0;
- }
- static void
- sof_unprepare_widgets_in_path(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *widget)
- {
- const struct sof_ipc_tplg_ops *ipc_tplg_ops = sdev->ipc->ops->tplg;
- const struct sof_ipc_tplg_widget_ops *widget_ops = ipc_tplg_ops->widget;
- struct snd_sof_widget *swidget = widget->dobj.private;
- struct snd_soc_dapm_path *p;
- /* skip if the widget is in use or if it is already unprepared */
- if (!swidget || !swidget->prepared || swidget->use_count > 0)
- goto sink_unprepare;
- if (widget_ops[widget->id].ipc_unprepare)
- /* unprepare the source widget */
- widget_ops[widget->id].ipc_unprepare(swidget);
- swidget->prepared = false;
- sink_unprepare:
- /* unprepare all widgets in the sink paths */
- snd_soc_dapm_widget_for_each_sink_path(widget, p) {
- if (!p->walking && p->sink->dobj.private) {
- p->walking = true;
- sof_unprepare_widgets_in_path(sdev, p->sink);
- p->walking = false;
- }
- }
- }
- static int
- sof_prepare_widgets_in_path(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *widget,
- struct snd_pcm_hw_params *fe_params,
- struct snd_sof_platform_stream_params *platform_params,
- struct snd_pcm_hw_params *pipeline_params, int dir)
- {
- const struct sof_ipc_tplg_ops *ipc_tplg_ops = sdev->ipc->ops->tplg;
- const struct sof_ipc_tplg_widget_ops *widget_ops = ipc_tplg_ops->widget;
- struct snd_sof_widget *swidget = widget->dobj.private;
- struct snd_soc_dapm_path *p;
- int ret;
- if (!swidget || !widget_ops[widget->id].ipc_prepare || swidget->prepared)
- goto sink_prepare;
- /* prepare the source widget */
- ret = widget_ops[widget->id].ipc_prepare(swidget, fe_params, platform_params,
- pipeline_params, dir);
- if (ret < 0) {
- dev_err(sdev->dev, "failed to prepare widget %s\n", widget->name);
- return ret;
- }
- swidget->prepared = true;
- sink_prepare:
- /* prepare all widgets in the sink paths */
- snd_soc_dapm_widget_for_each_sink_path(widget, p) {
- if (!p->walking && p->sink->dobj.private) {
- p->walking = true;
- ret = sof_prepare_widgets_in_path(sdev, p->sink, fe_params,
- platform_params, pipeline_params, dir);
- p->walking = false;
- if (ret < 0) {
- /* unprepare the source widget */
- if (widget_ops[widget->id].ipc_unprepare &&
- swidget && swidget->prepared) {
- widget_ops[widget->id].ipc_unprepare(swidget);
- swidget->prepared = false;
- }
- return ret;
- }
- }
- }
- return 0;
- }
- /*
- * free all widgets in the sink path starting from the source widget
- * (DAI type for capture, AIF type for playback)
- */
- static int sof_free_widgets_in_path(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *widget,
- int dir)
- {
- struct snd_soc_dapm_path *p;
- int err;
- int ret = 0;
- /* free all widgets even in case of error to keep use counts balanced */
- snd_soc_dapm_widget_for_each_sink_path(widget, p) {
- if (!p->walking && p->sink->dobj.private && widget->dobj.private) {
- p->walking = true;
- if (WIDGET_IS_AIF_OR_DAI(widget->id)) {
- err = sof_widget_free(sdev, widget->dobj.private);
- if (err < 0)
- ret = err;
- }
- err = sof_widget_free(sdev, p->sink->dobj.private);
- if (err < 0)
- ret = err;
- err = sof_free_widgets_in_path(sdev, p->sink, dir);
- if (err < 0)
- ret = err;
- p->walking = false;
- }
- }
- return ret;
- }
- /*
- * set up all widgets in the sink path starting from the source widget
- * (DAI type for capture, AIF type for playback).
- * The error path in this function ensures that all successfully set up widgets getting freed.
- */
- static int sof_set_up_widgets_in_path(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *widget,
- int dir)
- {
- struct snd_soc_dapm_path *p;
- int ret;
- snd_soc_dapm_widget_for_each_sink_path(widget, p) {
- if (!p->walking && p->sink->dobj.private && widget->dobj.private) {
- p->walking = true;
- if (WIDGET_IS_AIF_OR_DAI(widget->id)) {
- ret = sof_widget_setup(sdev, widget->dobj.private);
- if (ret < 0)
- goto out;
- }
- ret = sof_widget_setup(sdev, p->sink->dobj.private);
- if (ret < 0) {
- if (WIDGET_IS_AIF_OR_DAI(widget->id))
- sof_widget_free(sdev, widget->dobj.private);
- goto out;
- }
- ret = sof_set_up_widgets_in_path(sdev, p->sink, dir);
- if (ret < 0) {
- if (WIDGET_IS_AIF_OR_DAI(widget->id))
- sof_widget_free(sdev, widget->dobj.private);
- sof_widget_free(sdev, p->sink->dobj.private);
- }
- out:
- p->walking = false;
- if (ret < 0)
- return ret;
- }
- }
- return 0;
- }
- static int
- sof_walk_widgets_in_order(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget_list *list,
- struct snd_pcm_hw_params *fe_params,
- struct snd_sof_platform_stream_params *platform_params, int dir,
- enum sof_widget_op op)
- {
- struct snd_soc_dapm_widget *widget;
- char *str;
- int ret = 0;
- int i;
- for_each_dapm_widgets(list, i, widget) {
- /* starting widget for playback is AIF type */
- if (dir == SNDRV_PCM_STREAM_PLAYBACK && widget->id != snd_soc_dapm_aif_in)
- continue;
- /* starting widget for capture is DAI type */
- if (dir == SNDRV_PCM_STREAM_CAPTURE && widget->id != snd_soc_dapm_dai_out)
- continue;
- switch (op) {
- case SOF_WIDGET_SETUP:
- ret = sof_set_up_widgets_in_path(sdev, widget, dir);
- str = "set up";
- break;
- case SOF_WIDGET_FREE:
- ret = sof_free_widgets_in_path(sdev, widget, dir);
- str = "free";
- break;
- case SOF_WIDGET_PREPARE:
- {
- struct snd_pcm_hw_params pipeline_params;
- str = "prepare";
- /*
- * When walking the list of connected widgets, the pipeline_params for each
- * widget is modified by the source widget in the path. Use a local
- * copy of the runtime params as the pipeline_params so that the runtime
- * params does not get overwritten.
- */
- memcpy(&pipeline_params, fe_params, sizeof(*fe_params));
- ret = sof_prepare_widgets_in_path(sdev, widget, fe_params,
- platform_params, &pipeline_params, dir);
- break;
- }
- case SOF_WIDGET_UNPREPARE:
- sof_unprepare_widgets_in_path(sdev, widget);
- break;
- default:
- dev_err(sdev->dev, "Invalid widget op %d\n", op);
- return -EINVAL;
- }
- if (ret < 0) {
- dev_err(sdev->dev, "Failed to %s connected widgets\n", str);
- return ret;
- }
- }
- return 0;
- }
- int sof_widget_list_setup(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm,
- struct snd_pcm_hw_params *fe_params,
- struct snd_sof_platform_stream_params *platform_params,
- int dir)
- {
- const struct sof_ipc_tplg_ops *ipc_tplg_ops = sdev->ipc->ops->tplg;
- struct snd_soc_dapm_widget_list *list = spcm->stream[dir].list;
- struct snd_soc_dapm_widget *widget;
- int i, ret;
- /* nothing to set up */
- if (!list)
- return 0;
- /*
- * Prepare widgets for set up. The prepare step is used to allocate memory, assign
- * instance ID and pick the widget configuration based on the runtime PCM params.
- */
- ret = sof_walk_widgets_in_order(sdev, list, fe_params, platform_params,
- dir, SOF_WIDGET_PREPARE);
- if (ret < 0)
- return ret;
- /* Set up is used to send the IPC to the DSP to create the widget */
- ret = sof_walk_widgets_in_order(sdev, list, fe_params, platform_params,
- dir, SOF_WIDGET_SETUP);
- if (ret < 0) {
- ret = sof_walk_widgets_in_order(sdev, list, fe_params, platform_params,
- dir, SOF_WIDGET_UNPREPARE);
- return ret;
- }
- /*
- * error in setting pipeline connections will result in route status being reset for
- * routes that were successfully set up when the widgets are freed.
- */
- ret = sof_setup_pipeline_connections(sdev, list, dir);
- if (ret < 0)
- goto widget_free;
- /* complete pipelines */
- for_each_dapm_widgets(list, i, widget) {
- struct snd_sof_widget *swidget = widget->dobj.private;
- struct snd_sof_widget *pipe_widget;
- if (!swidget)
- continue;
- pipe_widget = swidget->pipe_widget;
- if (!pipe_widget) {
- dev_err(sdev->dev, "error: no pipeline widget found for %s\n",
- swidget->widget->name);
- ret = -EINVAL;
- goto widget_free;
- }
- if (pipe_widget->complete)
- continue;
- if (ipc_tplg_ops->pipeline_complete) {
- pipe_widget->complete = ipc_tplg_ops->pipeline_complete(sdev, pipe_widget);
- if (pipe_widget->complete < 0) {
- ret = pipe_widget->complete;
- goto widget_free;
- }
- }
- }
- return 0;
- widget_free:
- sof_walk_widgets_in_order(sdev, list, fe_params, platform_params, dir,
- SOF_WIDGET_FREE);
- sof_walk_widgets_in_order(sdev, list, NULL, NULL, dir, SOF_WIDGET_UNPREPARE);
- return ret;
- }
- int sof_widget_list_free(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm, int dir)
- {
- struct snd_soc_dapm_widget_list *list = spcm->stream[dir].list;
- int ret;
- /* nothing to free */
- if (!list)
- return 0;
- /* send IPC to free widget in the DSP */
- ret = sof_walk_widgets_in_order(sdev, list, NULL, NULL, dir, SOF_WIDGET_FREE);
- /* unprepare the widget */
- sof_walk_widgets_in_order(sdev, list, NULL, NULL, dir, SOF_WIDGET_UNPREPARE);
- snd_soc_dapm_dai_free_widgets(&list);
- spcm->stream[dir].list = NULL;
- return ret;
- }
- /*
- * helper to determine if there are only D0i3 compatible
- * streams active
- */
- bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev)
- {
- struct snd_pcm_substream *substream;
- struct snd_sof_pcm *spcm;
- bool d0i3_compatible_active = false;
- int dir;
- list_for_each_entry(spcm, &sdev->pcm_list, list) {
- for_each_pcm_streams(dir) {
- substream = spcm->stream[dir].substream;
- if (!substream || !substream->runtime)
- continue;
- /*
- * substream->runtime being not NULL indicates
- * that the stream is open. No need to check the
- * stream state.
- */
- if (!spcm->stream[dir].d0i3_compatible)
- return false;
- d0i3_compatible_active = true;
- }
- }
- return d0i3_compatible_active;
- }
- EXPORT_SYMBOL(snd_sof_dsp_only_d0i3_compatible_stream_active);
- bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev)
- {
- struct snd_sof_pcm *spcm;
- list_for_each_entry(spcm, &sdev->pcm_list, list) {
- if (spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].suspend_ignored ||
- spcm->stream[SNDRV_PCM_STREAM_CAPTURE].suspend_ignored)
- return true;
- }
- return false;
- }
- int sof_pcm_stream_free(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream,
- struct snd_sof_pcm *spcm, int dir, bool free_widget_list)
- {
- const struct sof_ipc_pcm_ops *pcm_ops = sdev->ipc->ops->pcm;
- int ret;
- /* Send PCM_FREE IPC to reset pipeline */
- if (pcm_ops->hw_free && spcm->prepared[substream->stream]) {
- ret = pcm_ops->hw_free(sdev->component, substream);
- if (ret < 0)
- return ret;
- }
- spcm->prepared[substream->stream] = false;
- /* stop the DMA */
- ret = snd_sof_pcm_platform_hw_free(sdev, substream);
- if (ret < 0)
- return ret;
- /* free widget list */
- if (free_widget_list) {
- ret = sof_widget_list_free(sdev, spcm, dir);
- if (ret < 0)
- dev_err(sdev->dev, "failed to free widgets during suspend\n");
- }
- return ret;
- }
- /*
- * Generic object lookup APIs.
- */
- struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_soc_component *scomp,
- const char *name)
- {
- struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
- struct snd_sof_pcm *spcm;
- list_for_each_entry(spcm, &sdev->pcm_list, list) {
- /* match with PCM dai name */
- if (strcmp(spcm->pcm.dai_name, name) == 0)
- return spcm;
- /* match with playback caps name if set */
- if (*spcm->pcm.caps[0].name &&
- !strcmp(spcm->pcm.caps[0].name, name))
- return spcm;
- /* match with capture caps name if set */
- if (*spcm->pcm.caps[1].name &&
- !strcmp(spcm->pcm.caps[1].name, name))
- return spcm;
- }
- return NULL;
- }
- struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_soc_component *scomp,
- unsigned int comp_id,
- int *direction)
- {
- struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
- struct snd_sof_pcm *spcm;
- int dir;
- list_for_each_entry(spcm, &sdev->pcm_list, list) {
- for_each_pcm_streams(dir) {
- if (spcm->stream[dir].comp_id == comp_id) {
- *direction = dir;
- return spcm;
- }
- }
- }
- return NULL;
- }
- struct snd_sof_widget *snd_sof_find_swidget(struct snd_soc_component *scomp,
- const char *name)
- {
- struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
- struct snd_sof_widget *swidget;
- list_for_each_entry(swidget, &sdev->widget_list, list) {
- if (strcmp(name, swidget->widget->name) == 0)
- return swidget;
- }
- return NULL;
- }
- /* find widget by stream name and direction */
- struct snd_sof_widget *
- snd_sof_find_swidget_sname(struct snd_soc_component *scomp,
- const char *pcm_name, int dir)
- {
- struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
- struct snd_sof_widget *swidget;
- enum snd_soc_dapm_type type;
- if (dir == SNDRV_PCM_STREAM_PLAYBACK)
- type = snd_soc_dapm_aif_in;
- else
- type = snd_soc_dapm_aif_out;
- list_for_each_entry(swidget, &sdev->widget_list, list) {
- if (!strcmp(pcm_name, swidget->widget->sname) &&
- swidget->id == type)
- return swidget;
- }
- return NULL;
- }
- struct snd_sof_dai *snd_sof_find_dai(struct snd_soc_component *scomp,
- const char *name)
- {
- struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
- struct snd_sof_dai *dai;
- list_for_each_entry(dai, &sdev->dai_list, list) {
- if (dai->name && (strcmp(name, dai->name) == 0))
- return dai;
- }
- return NULL;
- }
- static int sof_dai_get_clk(struct snd_soc_pcm_runtime *rtd, int clk_type)
- {
- struct snd_soc_component *component =
- snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
- struct snd_sof_dai *dai =
- snd_sof_find_dai(component, (char *)rtd->dai_link->name);
- struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
- const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
- /* use the tplg configured mclk if existed */
- if (!dai)
- return 0;
- if (tplg_ops->dai_get_clk)
- return tplg_ops->dai_get_clk(sdev, dai, clk_type);
- return 0;
- }
- /*
- * Helper to get SSP MCLK from a pcm_runtime.
- * Return 0 if not exist.
- */
- int sof_dai_get_mclk(struct snd_soc_pcm_runtime *rtd)
- {
- return sof_dai_get_clk(rtd, SOF_DAI_CLK_INTEL_SSP_MCLK);
- }
- EXPORT_SYMBOL(sof_dai_get_mclk);
- /*
- * Helper to get SSP BCLK from a pcm_runtime.
- * Return 0 if not exist.
- */
- int sof_dai_get_bclk(struct snd_soc_pcm_runtime *rtd)
- {
- return sof_dai_get_clk(rtd, SOF_DAI_CLK_INTEL_SSP_BCLK);
- }
- EXPORT_SYMBOL(sof_dai_get_bclk);
- static struct snd_sof_of_mach *sof_of_machine_select(struct snd_sof_dev *sdev)
- {
- struct snd_sof_pdata *sof_pdata = sdev->pdata;
- const struct sof_dev_desc *desc = sof_pdata->desc;
- struct snd_sof_of_mach *mach = desc->of_machines;
- if (!mach)
- return NULL;
- for (; mach->compatible; mach++) {
- if (of_machine_is_compatible(mach->compatible)) {
- sof_pdata->tplg_filename = mach->sof_tplg_filename;
- if (mach->fw_filename)
- sof_pdata->fw_filename = mach->fw_filename;
- return mach;
- }
- }
- return NULL;
- }
- /*
- * SOF Driver enumeration.
- */
- int sof_machine_check(struct snd_sof_dev *sdev)
- {
- struct snd_sof_pdata *sof_pdata = sdev->pdata;
- const struct sof_dev_desc *desc = sof_pdata->desc;
- struct snd_soc_acpi_mach *mach;
- if (!IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)) {
- const struct snd_sof_of_mach *of_mach;
- /* find machine */
- mach = snd_sof_machine_select(sdev);
- if (mach) {
- sof_pdata->machine = mach;
- if (sof_pdata->subsystem_id_set) {
- mach->mach_params.subsystem_vendor = sof_pdata->subsystem_vendor;
- mach->mach_params.subsystem_device = sof_pdata->subsystem_device;
- mach->mach_params.subsystem_id_set = true;
- }
- snd_sof_set_mach_params(mach, sdev);
- return 0;
- }
- of_mach = sof_of_machine_select(sdev);
- if (of_mach) {
- sof_pdata->of_machine = of_mach;
- return 0;
- }
- if (!IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC)) {
- dev_err(sdev->dev, "error: no matching ASoC machine driver found - aborting probe\n");
- return -ENODEV;
- }
- } else {
- dev_warn(sdev->dev, "Force to use nocodec mode\n");
- }
- /* select nocodec mode */
- dev_warn(sdev->dev, "Using nocodec machine driver\n");
- mach = devm_kzalloc(sdev->dev, sizeof(*mach), GFP_KERNEL);
- if (!mach)
- return -ENOMEM;
- mach->drv_name = "sof-nocodec";
- if (!sof_pdata->tplg_filename)
- sof_pdata->tplg_filename = desc->nocodec_tplg_filename;
- sof_pdata->machine = mach;
- snd_sof_set_mach_params(mach, sdev);
- return 0;
- }
- EXPORT_SYMBOL(sof_machine_check);
- int sof_machine_register(struct snd_sof_dev *sdev, void *pdata)
- {
- struct snd_sof_pdata *plat_data = pdata;
- const char *drv_name;
- const void *mach;
- int size;
- drv_name = plat_data->machine->drv_name;
- mach = plat_data->machine;
- size = sizeof(*plat_data->machine);
- /* register machine driver, pass machine info as pdata */
- plat_data->pdev_mach =
- platform_device_register_data(sdev->dev, drv_name,
- PLATFORM_DEVID_NONE, mach, size);
- if (IS_ERR(plat_data->pdev_mach))
- return PTR_ERR(plat_data->pdev_mach);
- dev_dbg(sdev->dev, "created machine %s\n",
- dev_name(&plat_data->pdev_mach->dev));
- return 0;
- }
- EXPORT_SYMBOL(sof_machine_register);
- void sof_machine_unregister(struct snd_sof_dev *sdev, void *pdata)
- {
- struct snd_sof_pdata *plat_data = pdata;
- if (!IS_ERR_OR_NULL(plat_data->pdev_mach))
- platform_device_unregister(plat_data->pdev_mach);
- }
- EXPORT_SYMBOL(sof_machine_unregister);
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