summaryrefslogtreecommitdiffstats
path: root/sound/soc/sof/sof-audio.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /sound/soc/sof/sof-audio.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/sof/sof-audio.c')
-rw-r--r--sound/soc/sof/sof-audio.c909
1 files changed, 909 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c
new file mode 100644
index 000000000..061ab7289
--- /dev/null
+++ b/sound/soc/sof/sof-audio.c
@@ -0,0 +1,909 @@
+// 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 <ranjani.sridharan@linux.intel.com>
+//
+
+#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);