// 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
//
// Author: Ranjani Sridharan <[email protected]>
//
#include <linux/bitfield.h>
#include <trace/events/sof.h>
#include "sof-audio.h"
#include "ops.h"
static bool is_virtual_widget(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *widget,
const char *func)
{
switch (widget->id) {
case snd_soc_dapm_out_drv:
case snd_soc_dapm_output:
case snd_soc_dapm_input:
dev_dbg(sdev->dev, "%s: %s is a virtual widget\n", func, widget->name);
return true;
default:
return false;
}
}
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 = sof_ipc_get_ops(sdev, 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 && tplg_ops->route_free)
tplg_ops->route_free(sdev, sroute);
sroute->setup = false;
}
}
static int sof_widget_free_unlocked(struct snd_sof_dev *sdev,
struct snd_sof_widget *swidget)
{
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
struct snd_sof_pipeline *spipe = swidget->spipe;
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);
/* free DAI config and continue to free widget even if it fails */
if (WIDGET_IS_DAI(swidget->id)) {
struct snd_sof_dai_config_data data;
unsigned int flags = SOF_DAI_CONFIG_FLAGS_HW_FREE;
data.dai_data = DMA_CHAN_INVALID;
if (tplg_ops && tplg_ops->dai_config) {
err = tplg_ops->dai_config(sdev, swidget, flags, &data);
if (err < 0)
dev_err(sdev->dev, "failed to free config for widget %s\n",
swidget->widget->name);
}
}
/* continue to disable core even if IPC fails */
if (tplg_ops && tplg_ops->widget_free) {
ret = tplg_ops->widget_free(sdev, swidget);
if (ret < 0 && !err)
err = ret;
}
/*
* decrement ref count for cores associated with all modules in the pipeline and clear
* the complete flag
*/
if (swidget->id == snd_soc_dapm_scheduler) {
int i;
for_each_set_bit(i, &spipe->core_mask, sdev->num_cores) {
ret = snd_sof_dsp_core_put(sdev, i);
if (ret < 0) {
dev_err(sdev->dev, "failed to disable target core: %d for pipeline %s\n",
i, swidget->widget->name);
if (!err)
err = ret;
}
}
swidget->spipe->complete = 0;
}
/*
* free the scheduler widget (same as pipe_widget) associated with the current swidget.
* skip for static pipelines
*/
if (swidget->spipe && swidget->dynamic_pipeline_widget &&
swidget->id != snd_soc_dapm_scheduler) {
ret = sof_widget_free_unlocked(sdev, swidget->spipe->pipe_widget);
if (ret < 0 && !err)
err = ret;
}
if (!err)
dev_dbg(sdev->dev, "widget %s freed\n", swidget->widget->name);
return err;
}
int sof_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
{
int ret;
mutex_lock(&swidget->setup_mutex);
ret = sof_widget_free_unlocked(sdev, swidget);
mutex_unlock(&swidget->setup_mutex);
return ret;
}
EXPORT_SYMBOL(sof_widget_free);
static int sof_widget_setup_unlocked(struct snd_sof_dev *sdev,
struct snd_sof_widget *swidget)
{
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
struct snd_sof_pipeline *spipe = swidget->spipe;
bool use_count_decremented = false;
int ret;
int i;
/* 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->spipe || !swidget->spipe->pipe_widget) {
dev_err(sdev->dev, "No pipeline set for %s\n", swidget->widget->name);
ret = -EINVAL;
goto use_count_dec;
}
ret = sof_widget_setup_unlocked(sdev, swidget->spipe->pipe_widget);
if (ret < 0)
goto use_count_dec;
}
/* update ref count for cores associated with all modules in the pipeline */
if (swidget->id == snd_soc_dapm_scheduler) {
for_each_set_bit(i, &spipe->core_mask, sdev->num_cores) {
ret = snd_sof_dsp_core_get(sdev, i);
if (ret < 0) {
dev_err(sdev->dev, "failed to enable target core %d for pipeline %s\n",
i, swidget->widget->name);
goto pipe_widget_free;
}
}
}
/* setup widget in the DSP */
if (tplg_ops && tplg_ops->widget_setup) {
ret = tplg_ops->widget_setup(sdev, swidget);
if (ret < 0)
goto pipe_widget_free;
}
/* send config for DAI components */
if (WIDGET_IS_DAI(swidget->id)) {
unsigned int flags = SOF_DAI_CONFIG_FLAGS_HW_PARAMS;
/*
* The config flags saved during BE DAI hw_params will be used for IPC3. IPC4 does
* not use the flags argument.
*/
if (tplg_ops && 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 && tplg_ops->control && 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 will be decremented by sof_widget_free() */
sof_widget_free_unlocked(sdev, swidget);
use_count_decremented = true;
pipe_widget_free:
if (swidget->id != snd_soc_dapm_scheduler) {
sof_widget_free_unlocked(sdev, swidget->spipe->pipe_widget);
} else {
int j;
/* decrement ref count for all cores that were updated previously */
for_each_set_bit(j, &spipe->core_mask, sdev->num_cores) {
if (j >= i)
break;
snd_sof_dsp_core_put(sdev, j);
}
}
use_count_dec:
if (!use_count_decremented)
swidget->use_count--;
return ret;
}
int sof_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
{
int ret;
mutex_lock(&swidget->setup_mutex);
ret = sof_widget_setup_unlocked(sdev, swidget);
mutex_unlock(&swidget->setup_mutex);
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 *tplg_ops = sof_ipc_get_ops(sdev, 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;
/* ignore routes involving virtual widgets in topology */
if (is_virtual_widget(sdev, src_widget->widget, __func__) ||
is_virtual_widget(sdev, sink_widget->widget, __func__))
return 0;
/* 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;
if (tplg_ops && tplg_ops->route_setup) {
int ret = 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)
{
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
struct snd_soc_dapm_widget *widget;
struct snd_sof_route *sroute;
struct snd_soc_dapm_path *p;
int ret = 0;
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 (!widget_in_list(list, p->sink))
continue;
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 (!widget_in_list(list, p->source))
continue;
if (p->source->dobj.private) {
ret = sof_route_setup(sdev, p->source, widget);
if (ret < 0)
return ret;
}
}
}
}
/*
* The above loop handles connections between widgets that belong to the DAPM widget list.
* This is not sufficient to handle loopback cases between pipelines configured with
* different directions, e.g. a sidetone or an amplifier feedback connected to a speaker
* protection module.
*/
list_for_each_entry(sroute, &sdev->route_list, list) {
bool src_widget_in_dapm_list, sink_widget_in_dapm_list;
struct snd_sof_widget *swidget;
if (sroute->setup)
continue;
src_widget_in_dapm_list = widget_in_list(list, sroute->src_widget->widget);
sink_widget_in_dapm_list = widget_in_list(list, sroute->sink_widget->widget);
/*
* if both source and sink are in the DAPM list, the route must already have been
* set up above. And if neither are in the DAPM list, the route shouldn't be
* handled now.
*/
if (src_widget_in_dapm_list == sink_widget_in_dapm_list)
continue;
/*
* At this point either the source widget or the sink widget is in the DAPM list
* with a route that might need to be set up. Check the use_count of the widget
* that is not in the DAPM list to confirm if it is in use currently before setting
* up the route.
*/
if (src_widget_in_dapm_list)
swidget = sroute->sink_widget;
else
swidget = sroute->src_widget;
mutex_lock(&swidget->setup_mutex);
if (!swidget->use_count) {
mutex_unlock(&swidget->setup_mutex);
continue;
}
if (tplg_ops && tplg_ops->route_setup) {
/*
* this route will get freed when either the source widget or the sink
* widget is freed during hw_free
*/
ret = tplg_ops->route_setup(sdev, sroute);
if (!ret)
sroute->setup = true;
}
mutex_unlock(&swidget->setup_mutex);
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,
struct snd_soc_dapm_widget_list *list)
{
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
struct snd_sof_widget *swidget = widget->dobj.private;
const struct sof_ipc_tplg_widget_ops *widget_ops;
struct snd_soc_dapm_path *p;
if (is_virtual_widget(sdev, widget, __func__))
return;
/* skip if the widget is in use or if it is already unprepared */
if (!swidget || !swidget->prepared || swidget->use_count > 0)
goto sink_unprepare;
widget_ops = tplg_ops ? tplg_ops->widget : NULL;
if (widget_ops && 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 (!widget_in_list(list, p->sink))
continue;
if (!p->walking && p->sink->dobj.private) {
p->walking = true;
sof_unprepare_widgets_in_path(sdev, p->sink, list);
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,
struct snd_soc_dapm_widget_list *list)
{
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
struct snd_sof_widget *swidget = widget->dobj.private;
const struct sof_ipc_tplg_widget_ops *widget_ops;
struct snd_soc_dapm_path *p;
int ret;
if (is_virtual_widget(sdev, widget, __func__))
return 0;
widget_ops = tplg_ops ? tplg_ops->widget : NULL;
if (!widget_ops)
return 0;
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 (!widget_in_list(list, p->sink))
continue;
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,
list);
p->walking = false;
if (ret < 0) {
/* unprepare the source widget */
if (widget_ops[widget->id].ipc_unprepare &&
swidget && swidget->prepared && swidget->use_count == 0) {
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_sof_pcm *spcm)
{
struct snd_soc_dapm_widget_list *list = spcm->stream[dir].list;
struct snd_soc_dapm_path *p;
int err;
int ret = 0;
if (is_virtual_widget(sdev, widget, __func__))
return 0;
if (widget->dobj.private) {
err = sof_widget_free(sdev, widget->dobj.private);
if (err < 0)
ret = err;
}
/* free all widgets in the sink paths even in case of error to keep use counts balanced */
snd_soc_dapm_widget_for_each_sink_path(widget, p) {
if (!p->walking) {
if (!widget_in_list(list, p->sink))
continue;
p->walking = true;
err = sof_free_widgets_in_path(sdev, p->sink, dir, spcm);
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_sof_pcm *spcm)
{
struct snd_sof_pcm_stream_pipeline_list *pipeline_list = &spcm->stream[dir].pipeline_list;
struct snd_soc_dapm_widget_list *list = spcm->stream[dir].list;
struct snd_sof_widget *swidget = widget->dobj.private;
struct snd_sof_pipeline *spipe;
struct snd_soc_dapm_path *p;
int ret;
if (is_virtual_widget(sdev, widget, __func__))
return 0;
if (swidget) {
int i;
ret = sof_widget_setup(sdev, widget->dobj.private);
if (ret < 0)
return ret;
/* skip populating the pipe_widgets array if it is NULL */
if (!pipeline_list->pipelines)
goto sink_setup;
/*
* Add the widget's pipe_widget to the list of pipelines to be triggered if not
* already in the list. This will result in the pipelines getting added in the
* order source to sink.
*/
for (i = 0; i < pipeline_list->count; i++) {
spipe = pipeline_list->pipelines[i];
if (spipe == swidget->spipe)
break;
}
if (i == pipeline_list->count) {
pipeline_list->count++;
pipeline_list->pipelines[i] = swidget->spipe;
}
}
sink_setup:
snd_soc_dapm_widget_for_each_sink_path(widget, p) {
if (!p->walking) {
if (!widget_in_list(list, p->sink))
continue;
p->walking = true;
ret = sof_set_up_widgets_in_path(sdev, p->sink, dir, spcm);
p->walking = false;
if (ret < 0) {
if (swidget)
sof_widget_free(sdev, swidget);
return ret;
}
}
}
return 0;
}
static int
sof_walk_widgets_in_order(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,
enum sof_widget_op op)
{
struct snd_soc_dapm_widget_list *list = spcm->stream[dir].list;
struct snd_soc_dapm_widget *widget;
char *str;
int ret = 0;
int i;
if (!list)
return 0;
for_each_dapm_widgets(list, i, widget) {
if (is_virtual_widget(sdev, widget, __func__))
continue;
/* 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, spcm);
str = "set up";
break;
case SOF_WIDGET_FREE:
ret = sof_free_widgets_in_path(sdev, widget, dir, spcm);
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, list);
break;
}
case SOF_WIDGET_UNPREPARE:
sof_unprepare_widgets_in_path(sdev, widget, list);
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 *tplg_ops = sof_ipc_get_ops(sdev, 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, spcm, 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, spcm, fe_params, platform_params,
dir, SOF_WIDGET_SETUP);
if (ret < 0) {
sof_walk_widgets_in_order(sdev, spcm, 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;
struct snd_sof_pipeline *spipe;
if (!swidget || sdev->dspless_mode_selected)
continue;
spipe = swidget->spipe;
if (!spipe) {
dev_err(sdev->dev, "no pipeline found for %s\n",
swidget->widget->name);
ret = -EINVAL;
goto widget_free;
}
pipe_widget = spipe->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 (spipe->complete)
continue;
if (tplg_ops && tplg_ops->pipeline_complete) {
spipe->complete = tplg_ops->pipeline_complete(sdev, pipe_widget);
if (spipe->complete < 0) {
ret = spipe->complete;
goto widget_free;
}
}
}
return 0;
widget_free:
sof_walk_widgets_in_order(sdev, spcm, fe_params, platform_params, dir,
SOF_WIDGET_FREE);
sof_walk_widgets_in_order(sdev, spcm, 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_sof_pcm_stream_pipeline_list *pipeline_list = &spcm->stream[dir].pipeline_list;
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, spcm, NULL, NULL, dir, SOF_WIDGET_FREE);
/* unprepare the widget */
sof_walk_widgets_in_order(sdev, spcm, NULL, NULL, dir, SOF_WIDGET_UNPREPARE);
snd_soc_dapm_dai_free_widgets(&list);
spcm->stream[dir].list = NULL;
pipeline_list->count = 0;
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 = sof_ipc_get_ops(sdev, pcm);
int ret;
int err = 0;
if (spcm->prepared[substream->stream]) {
/* stop DMA first if needed */
if (pcm_ops && pcm_ops->platform_stop_during_hw_free)
snd_sof_pcm_platform_trigger(sdev, substream, SNDRV_PCM_TRIGGER_STOP);
/* free PCM in the DSP */
if (pcm_ops && pcm_ops->hw_free) {
ret = pcm_ops->hw_free(sdev->component, substream);
if (ret < 0) {
dev_err(sdev->dev, "%s: pcm_ops hw_free failed %d\n",
__func__, ret);
err = ret;
}
}
spcm->prepared[substream->stream] = false;
spcm->pending_stop[substream->stream] = false;
}
/* reset the DMA */
ret = snd_sof_pcm_platform_hw_free(sdev, substream);
if (ret < 0) {
dev_err(sdev->dev, "%s: platform hw free failed %d\n",
__func__, ret);
if (!err)
err = ret;
}
/* free widget list */
if (free_widget_list) {
ret = sof_widget_list_free(sdev, spcm, dir);
if (ret < 0) {
dev_err(sdev->dev, "%s: sof_widget_list_free failed %d\n",
__func__, ret);
if (!err)
err = ret;
}
}
return err;
}
/*
* 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_param(struct snd_soc_pcm_runtime *rtd, int param_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 = sof_ipc_get_ops(sdev, tplg);
/* use the tplg configured mclk if existed */
if (!dai)
return 0;
if (tplg_ops && tplg_ops->dai_get_param)
return tplg_ops->dai_get_param(sdev, dai, param_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_param(rtd, SOF_DAI_PARAM_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_param(rtd, SOF_DAI_PARAM_INTEL_SSP_BCLK);
}
EXPORT_SYMBOL(sof_dai_get_bclk);
/*
* Helper to get SSP TDM slot number from a pcm_runtime.
* Return 0 if not exist.
*/
int sof_dai_get_tdm_slots(struct snd_soc_pcm_runtime *rtd)
{
return sof_dai_get_param(rtd, SOF_DAI_PARAM_INTEL_SSP_TDM_SLOTS);
}
EXPORT_SYMBOL(sof_dai_get_tdm_slots);
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