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1038
|
// 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 "sof-audio.h"
#include "ops.h"
static int sof_kcontrol_setup(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol)
{
int ret;
/* reset readback offset for scontrol */
scontrol->readback_offset = 0;
ret = snd_sof_ipc_set_get_comp_data(scontrol, true);
if (ret < 0)
dev_err(sdev->dev, "error: failed kcontrol value set for widget: %d\n",
scontrol->comp_id);
return ret;
}
static int sof_dai_config_setup(struct snd_sof_dev *sdev, struct snd_sof_dai *dai)
{
struct sof_ipc_dai_config *config;
struct sof_ipc_reply reply;
int ret;
config = &dai->dai_config[dai->current_config];
if (!config) {
dev_err(sdev->dev, "error: no config for DAI %s\n", dai->name);
return -EINVAL;
}
/* set NONE flag to clear all previous settings */
config->flags = SOF_DAI_CONFIG_FLAGS_NONE;
ret = sof_ipc_tx_message(sdev->ipc, config->hdr.cmd, config, config->hdr.size,
&reply, sizeof(reply));
if (ret < 0)
dev_err(sdev->dev, "error: failed to set dai config for %s\n", dai->name);
return ret;
}
static int sof_widget_kcontrol_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
{
struct snd_sof_control *scontrol;
int ret;
/* set up all controls for the widget */
list_for_each_entry(scontrol, &sdev->kcontrol_list, list)
if (scontrol->comp_id == swidget->comp_id) {
/* set kcontrol data in DSP */
ret = sof_kcontrol_setup(sdev, scontrol);
if (ret < 0) {
dev_err(sdev->dev, "error: fail to set up kcontrols for widget %s\n",
swidget->widget->name);
return ret;
}
/*
* Read back the data from the DSP for static widgets. This is particularly
* useful for binary kcontrols associated with static pipeline widgets to
* initialize the data size to match that in the DSP.
*/
if (swidget->dynamic_pipeline_widget)
continue;
ret = snd_sof_ipc_set_get_comp_data(scontrol, false);
if (ret < 0)
dev_warn(sdev->dev, "Failed kcontrol get for control in widget %s\n",
swidget->widget->name);
}
return 0;
}
static void sof_reset_route_setup_status(struct snd_sof_dev *sdev, struct snd_sof_widget *widget)
{
struct snd_sof_route *sroute;
list_for_each_entry(sroute, &sdev->route_list, list)
if (sroute->src_widget == widget || sroute->sink_widget == widget)
sroute->setup = false;
}
int sof_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
{
struct sof_ipc_free ipc_free = {
.hdr = {
.size = sizeof(ipc_free),
.cmd = SOF_IPC_GLB_TPLG_MSG,
},
.id = swidget->comp_id,
};
struct sof_ipc_reply reply;
int ret, ret1;
if (!swidget->private)
return 0;
/* only free when use_count is 0 */
if (--swidget->use_count)
return 0;
switch (swidget->id) {
case snd_soc_dapm_scheduler:
{
ipc_free.hdr.cmd |= SOF_IPC_TPLG_PIPE_FREE;
break;
}
case snd_soc_dapm_buffer:
ipc_free.hdr.cmd |= SOF_IPC_TPLG_BUFFER_FREE;
break;
case snd_soc_dapm_dai_in:
case snd_soc_dapm_dai_out:
{
struct snd_sof_dai *dai = swidget->private;
dai->configured = false;
fallthrough;
}
default:
ipc_free.hdr.cmd |= SOF_IPC_TPLG_COMP_FREE;
break;
}
/* continue to disable core even if IPC fails */
ret = sof_ipc_tx_message(sdev->ipc, ipc_free.hdr.cmd, &ipc_free, sizeof(ipc_free),
&reply, sizeof(reply));
if (ret < 0)
dev_err(sdev->dev, "error: failed to free widget %s\n", swidget->widget->name);
/*
* disable widget core. continue to route setup status and complete flag
* even if this fails and return the appropriate error
*/
ret1 = snd_sof_dsp_core_put(sdev, swidget->core);
if (ret1 < 0) {
dev_err(sdev->dev, "error: failed to disable target core: %d for widget %s\n",
swidget->core, swidget->widget->name);
if (!ret)
ret = ret1;
}
/* reset route setup status for all routes that contain this widget */
sof_reset_route_setup_status(sdev, swidget);
swidget->complete = 0;
if (!ret)
dev_dbg(sdev->dev, "widget %s freed\n", swidget->widget->name);
return ret;
}
EXPORT_SYMBOL(sof_widget_free);
int sof_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
{
struct sof_ipc_pipe_new *pipeline;
struct sof_ipc_comp_reply r;
struct sof_ipc_cmd_hdr *hdr;
struct sof_ipc_comp *comp;
struct snd_sof_dai *dai;
int ret;
/* skip if there is no private data */
if (!swidget->private)
return 0;
/* widget already set up */
if (++swidget->use_count > 1)
return 0;
/* 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 use_count_dec;
}
switch (swidget->id) {
case snd_soc_dapm_dai_in:
case snd_soc_dapm_dai_out:
dai = swidget->private;
comp = &dai->comp_dai->comp;
dai->configured = false;
ret = sof_ipc_tx_message(sdev->ipc, comp->hdr.cmd, dai->comp_dai, comp->hdr.size,
&r, sizeof(r));
if (ret < 0) {
dev_err(sdev->dev, "error: failed to load widget %s\n",
swidget->widget->name);
goto core_put;
}
ret = sof_dai_config_setup(sdev, dai);
if (ret < 0) {
dev_err(sdev->dev, "error: failed to load dai config for DAI %s\n",
swidget->widget->name);
/*
* widget use_count and core ref_count will both be decremented by
* sof_widget_free()
*/
sof_widget_free(sdev, swidget);
return ret;
}
break;
case snd_soc_dapm_scheduler:
pipeline = swidget->private;
ret = sof_ipc_tx_message(sdev->ipc, pipeline->hdr.cmd, pipeline,
sizeof(*pipeline), &r, sizeof(r));
break;
default:
hdr = swidget->private;
ret = sof_ipc_tx_message(sdev->ipc, hdr->cmd, swidget->private, hdr->size,
&r, sizeof(r));
break;
}
if (ret < 0) {
dev_err(sdev->dev, "error: failed to load widget %s\n", swidget->widget->name);
goto core_put;
}
/* restore kcontrols for widget */
ret = sof_widget_kcontrol_setup(sdev, swidget);
if (ret < 0) {
dev_err(sdev->dev, "error: failed to restore kcontrols for widget %s\n",
swidget->widget->name);
/*
* widget use_count and core ref_count will both be decremented by
* sof_widget_free()
*/
sof_widget_free(sdev, swidget);
return ret;
}
dev_dbg(sdev->dev, "widget %s setup complete\n", swidget->widget->name);
return 0;
core_put:
snd_sof_dsp_core_put(sdev, swidget->core);
use_count_dec:
swidget->use_count--;
return ret;
}
EXPORT_SYMBOL(sof_widget_setup);
static int sof_route_setup_ipc(struct snd_sof_dev *sdev, struct snd_sof_route *sroute)
{
struct sof_ipc_pipe_comp_connect *connect;
struct sof_ipc_reply reply;
int ret;
/* skip if there's no private data */
if (!sroute->private)
return 0;
/* nothing to do if route is already set up */
if (sroute->setup)
return 0;
connect = sroute->private;
dev_dbg(sdev->dev, "setting up route %s -> %s\n",
sroute->src_widget->widget->name,
sroute->sink_widget->widget->name);
/* send ipc */
ret = sof_ipc_tx_message(sdev->ipc,
connect->hdr.cmd,
connect, sizeof(*connect),
&reply, sizeof(reply));
if (ret < 0) {
dev_err(sdev->dev, "%s: route setup failed %d\n", __func__, ret);
return ret;
}
sroute->setup = true;
return 0;
}
static int sof_route_setup(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *wsource,
struct snd_soc_dapm_widget *wsink)
{
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 */
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;
}
return sof_route_setup_ipc(sdev, sroute);
}
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;
}
int sof_widget_list_setup(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm, int dir)
{
struct snd_soc_dapm_widget_list *list = spcm->stream[dir].list;
struct snd_soc_dapm_widget *widget;
int i, ret, num_widgets;
/* nothing to set up */
if (!list)
return 0;
/* set up widgets in the list */
for_each_dapm_widgets(list, num_widgets, widget) {
struct snd_sof_widget *swidget = widget->dobj.private;
struct snd_sof_widget *pipe_widget;
if (!swidget)
continue;
/*
* 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.
*/
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;
}
ret = sof_widget_setup(sdev, pipe_widget);
if (ret < 0)
goto widget_free;
/* set up the widget */
ret = sof_widget_setup(sdev, swidget);
if (ret < 0) {
sof_widget_free(sdev, pipe_widget);
goto widget_free;
}
}
/*
* 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;
pipe_widget->complete = snd_sof_complete_pipeline(sdev, pipe_widget);
if (pipe_widget->complete < 0) {
ret = pipe_widget->complete;
goto widget_free;
}
}
return 0;
widget_free:
/* free all widgets that have been set up successfully */
for_each_dapm_widgets(list, i, widget) {
struct snd_sof_widget *swidget = widget->dobj.private;
if (!swidget)
continue;
if (!num_widgets--)
break;
sof_widget_free(sdev, swidget);
sof_widget_free(sdev, swidget->pipe_widget);
}
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;
struct snd_soc_dapm_widget *widget;
int i, ret;
int ret1 = 0;
/* nothing to free */
if (!list)
return 0;
/*
* Free widgets in the list. This can fail but continue freeing other widgets to keep
* use_counts balanced.
*/
for_each_dapm_widgets(list, i, widget) {
struct snd_sof_widget *swidget = widget->dobj.private;
if (!swidget)
continue;
/*
* free widget and its pipe_widget. Either of these can fail, but free as many as
* possible before freeing the list and returning the error.
*/
ret = sof_widget_free(sdev, swidget);
if (ret < 0)
ret1 = ret;
ret = sof_widget_free(sdev, swidget->pipe_widget);
if (ret < 0)
ret1 = ret;
}
snd_soc_dapm_dai_free_widgets(&list);
spcm->stream[dir].list = NULL;
return ret1;
}
/*
* 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_set_hw_params_upon_resume(struct device *dev)
{
struct snd_sof_dev *sdev = dev_get_drvdata(dev);
struct snd_pcm_substream *substream;
struct snd_sof_pcm *spcm;
snd_pcm_state_t state;
int dir;
/*
* SOF requires hw_params to be set-up internally upon resume.
* So, set the flag to indicate this for those streams that
* have been suspended.
*/
list_for_each_entry(spcm, &sdev->pcm_list, list) {
for_each_pcm_streams(dir) {
/*
* do not reset hw_params upon resume for streams that
* were kept running during suspend
*/
if (spcm->stream[dir].suspend_ignored)
continue;
substream = spcm->stream[dir].substream;
if (!substream || !substream->runtime)
continue;
state = substream->runtime->status->state;
if (state == SNDRV_PCM_STATE_SUSPENDED)
spcm->prepared[dir] = false;
}
}
/* set internal flag for BE */
return snd_sof_dsp_hw_params_upon_resume(sdev);
}
int sof_set_up_pipelines(struct snd_sof_dev *sdev, bool verify)
{
struct sof_ipc_fw_version *v = &sdev->fw_ready.version;
struct snd_sof_widget *swidget;
struct snd_sof_route *sroute;
int ret;
/* restore pipeline components */
list_for_each_entry(swidget, &sdev->widget_list, list) {
/* only set up the widgets belonging to static pipelines */
if (!verify && swidget->dynamic_pipeline_widget)
continue;
/*
* For older firmware, skip scheduler widgets in this loop,
* sof_widget_setup() will be called in the 'complete pipeline' loop
*/
if (v->abi_version < SOF_ABI_VER(3, 19, 0) &&
swidget->id == snd_soc_dapm_scheduler)
continue;
/* update DAI config. The IPC will be sent in sof_widget_setup() */
if (WIDGET_IS_DAI(swidget->id)) {
struct snd_sof_dai *dai = swidget->private;
struct sof_ipc_dai_config *config;
if (!dai || !dai->dai_config)
continue;
config = dai->dai_config;
/*
* The link DMA channel would be invalidated for running
* streams but not for streams that were in the PAUSED
* state during suspend. So invalidate it here before setting
* the dai config in the DSP.
*/
if (config->type == SOF_DAI_INTEL_HDA)
config->hda.link_dma_ch = DMA_CHAN_INVALID;
}
ret = sof_widget_setup(sdev, swidget);
if (ret < 0)
return ret;
}
/* restore pipeline connections */
list_for_each_entry(sroute, &sdev->route_list, list) {
/* only set up routes belonging to static pipelines */
if (!verify && (sroute->src_widget->dynamic_pipeline_widget ||
sroute->sink_widget->dynamic_pipeline_widget))
continue;
ret = sof_route_setup_ipc(sdev, sroute);
if (ret < 0) {
dev_err(sdev->dev, "%s: restore pipeline connections failed\n", __func__);
return ret;
}
}
/* complete pipeline */
list_for_each_entry(swidget, &sdev->widget_list, list) {
switch (swidget->id) {
case snd_soc_dapm_scheduler:
/* only complete static pipelines */
if (!verify && swidget->dynamic_pipeline_widget)
continue;
if (v->abi_version < SOF_ABI_VER(3, 19, 0)) {
ret = sof_widget_setup(sdev, swidget);
if (ret < 0)
return ret;
}
swidget->complete =
snd_sof_complete_pipeline(sdev, swidget);
break;
default:
break;
}
}
return 0;
}
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)
{
int ret;
/* Send PCM_FREE IPC to reset pipeline */
ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm);
if (ret < 0)
return ret;
/* 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;
}
/*
* Free the PCM, its associated widgets and set the prepared flag to false for all PCMs that
* did not get suspended(ex: paused streams) so the widgets can be set up again during resume.
*/
static int sof_tear_down_left_over_pipelines(struct snd_sof_dev *sdev)
{
struct snd_sof_widget *swidget;
struct snd_sof_pcm *spcm;
int dir, ret;
/*
* free all PCMs and their associated DAPM widgets if their connected DAPM widget
* list is not NULL. This should only be true for paused streams at this point.
* This is equivalent to the handling of FE DAI suspend trigger for running streams.
*/
list_for_each_entry(spcm, &sdev->pcm_list, list)
for_each_pcm_streams(dir) {
struct snd_pcm_substream *substream = spcm->stream[dir].substream;
if (!substream || !substream->runtime)
continue;
if (spcm->stream[dir].list) {
ret = sof_pcm_stream_free(sdev, substream, spcm, dir, true);
if (ret < 0)
return ret;
}
}
/*
* free any left over DAI widgets. This is equivalent to the handling of suspend trigger
* for the BE DAI for running streams.
*/
list_for_each_entry(swidget, &sdev->widget_list, list)
if (WIDGET_IS_DAI(swidget->id) && swidget->use_count == 1) {
ret = sof_widget_free(sdev, swidget);
if (ret < 0)
return ret;
}
return 0;
}
/*
* For older firmware, this function doesn't free widgets for static pipelines during suspend.
* It only resets use_count for all widgets.
*/
int sof_tear_down_pipelines(struct snd_sof_dev *sdev, bool verify)
{
struct sof_ipc_fw_version *v = &sdev->fw_ready.version;
struct snd_sof_widget *swidget;
struct snd_sof_route *sroute;
int ret;
/*
* This function is called during suspend and for one-time topology verification during
* first boot. In both cases, there is no need to protect swidget->use_count and
* sroute->setup because during suspend all running streams are suspended and during
* topology loading the sound card unavailable to open PCMs.
*/
list_for_each_entry(swidget, &sdev->widget_list, list) {
if (swidget->dynamic_pipeline_widget)
continue;
/* Do not free widgets for static pipelines with FW ABI older than 3.19 */
if (!verify && !swidget->dynamic_pipeline_widget &&
v->abi_version < SOF_ABI_VER(3, 19, 0)) {
swidget->use_count = 0;
swidget->complete = 0;
continue;
}
ret = sof_widget_free(sdev, swidget);
if (ret < 0)
return ret;
}
/*
* Tear down all pipelines associated with PCMs that did not get suspended
* and unset the prepare flag so that they can be set up again during resume.
* Skip this step for older firmware.
*/
if (!verify && v->abi_version >= SOF_ABI_VER(3, 19, 0)) {
ret = sof_tear_down_left_over_pipelines(sdev);
if (ret < 0) {
dev_err(sdev->dev, "failed to tear down paused pipelines\n");
return ret;
}
}
list_for_each_entry(sroute, &sdev->route_list, list)
sroute->setup = false;
return 0;
}
/*
* 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;
}
#define SOF_DAI_CLK_INTEL_SSP_MCLK 0
#define SOF_DAI_CLK_INTEL_SSP_BCLK 1
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);
/* use the tplg configured mclk if existed */
if (!dai || !dai->dai_config)
return 0;
switch (dai->dai_config->type) {
case SOF_DAI_INTEL_SSP:
switch (clk_type) {
case SOF_DAI_CLK_INTEL_SSP_MCLK:
return dai->dai_config->ssp.mclk_rate;
case SOF_DAI_CLK_INTEL_SSP_BCLK:
return dai->dai_config->ssp.bclk_rate;
default:
dev_err(rtd->dev, "fail to get SSP clk %d rate\n",
clk_type);
return -EINVAL;
}
break;
default:
/* not yet implemented for platforms other than the above */
dev_err(rtd->dev, "DAI type %d not supported yet!\n",
dai->dai_config->type);
return -EINVAL;
}
}
/*
* 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);
/*
* 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)) {
/* find machine */
mach = snd_sof_machine_select(sdev);
if (mach) {
sof_pdata->machine = mach;
snd_sof_set_mach_params(mach, sdev);
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";
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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