WSL2-Linux-Kernel/sound/soc/sof/sof-audio.c

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C
Исходник Обычный вид История

// 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 "sof-audio.h"
#include "ops.h"
/*
* 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
* 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);
}
static int sof_restore_kcontrols(struct device *dev)
{
struct snd_sof_dev *sdev = dev_get_drvdata(dev);
struct snd_sof_control *scontrol;
int ipc_cmd, ctrl_type;
int ret = 0;
/* restore kcontrol values */
list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {
/* reset readback offset for scontrol after resuming */
scontrol->readback_offset = 0;
/* notify DSP of kcontrol values */
switch (scontrol->cmd) {
case SOF_CTRL_CMD_VOLUME:
case SOF_CTRL_CMD_ENUM:
case SOF_CTRL_CMD_SWITCH:
ipc_cmd = SOF_IPC_COMP_SET_VALUE;
ctrl_type = SOF_CTRL_TYPE_VALUE_CHAN_SET;
ret = snd_sof_ipc_set_get_comp_data(scontrol,
ipc_cmd, ctrl_type,
scontrol->cmd,
true);
break;
case SOF_CTRL_CMD_BINARY:
ipc_cmd = SOF_IPC_COMP_SET_DATA;
ctrl_type = SOF_CTRL_TYPE_DATA_SET;
ret = snd_sof_ipc_set_get_comp_data(scontrol,
ipc_cmd, ctrl_type,
scontrol->cmd,
true);
break;
default:
break;
}
if (ret < 0) {
dev_err(dev,
"error: failed kcontrol value set for widget: %d\n",
scontrol->comp_id);
return ret;
}
}
return 0;
}
int sof_restore_pipelines(struct device *dev)
{
struct snd_sof_dev *sdev = dev_get_drvdata(dev);
struct snd_sof_widget *swidget;
struct snd_sof_route *sroute;
struct sof_ipc_pipe_new *pipeline;
struct snd_sof_dai *dai;
struct sof_ipc_comp_dai *comp_dai;
struct sof_ipc_cmd_hdr *hdr;
int ret;
/* restore pipeline components */
list_for_each_entry_reverse(swidget, &sdev->widget_list, list) {
struct sof_ipc_comp_reply r;
/* skip if there is no private data */
if (!swidget->private)
continue;
switch (swidget->id) {
case snd_soc_dapm_dai_in:
case snd_soc_dapm_dai_out:
dai = swidget->private;
comp_dai = &dai->comp_dai;
ret = sof_ipc_tx_message(sdev->ipc,
comp_dai->comp.hdr.cmd,
comp_dai, sizeof(*comp_dai),
&r, sizeof(r));
break;
case snd_soc_dapm_scheduler:
/*
* During suspend, all DSP cores are powered off.
* Therefore upon resume, create the pipeline comp
* and power up the core that the pipeline is
* scheduled on.
*/
pipeline = swidget->private;
ret = sof_load_pipeline_ipc(dev, pipeline, &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(dev,
"error: failed to load widget type %d with ID: %d\n",
swidget->widget->id, swidget->comp_id);
return ret;
}
}
/* restore pipeline connections */
list_for_each_entry_reverse(sroute, &sdev->route_list, list) {
struct sof_ipc_pipe_comp_connect *connect;
struct sof_ipc_reply reply;
/* skip if there's no private data */
if (!sroute->private)
continue;
connect = sroute->private;
/* send ipc */
ret = sof_ipc_tx_message(sdev->ipc,
connect->hdr.cmd,
connect, sizeof(*connect),
&reply, sizeof(reply));
if (ret < 0) {
dev_err(dev,
"error: failed to load route sink %s control %s source %s\n",
sroute->route->sink,
sroute->route->control ? sroute->route->control
: "none",
sroute->route->source);
return ret;
}
}
/* restore dai links */
list_for_each_entry_reverse(dai, &sdev->dai_list, list) {
struct sof_ipc_reply reply;
struct sof_ipc_dai_config *config = dai->dai_config;
if (!config) {
dev_err(dev, "error: no config for DAI %s\n",
dai->name);
continue;
}
/*
* 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_ipc_tx_message(sdev->ipc,
config->hdr.cmd, config,
config->hdr.size,
&reply, sizeof(reply));
if (ret < 0) {
dev_err(dev,
"error: failed to set dai config for %s\n",
dai->name);
return ret;
}
}
/* complete pipeline */
list_for_each_entry(swidget, &sdev->widget_list, list) {
switch (swidget->id) {
case snd_soc_dapm_scheduler:
swidget->complete =
snd_sof_complete_pipeline(dev, swidget);
break;
default:
break;
}
}
/* restore pipeline kcontrols */
ret = sof_restore_kcontrols(dev);
if (ret < 0)
dev_err(dev,
"error: restoring kcontrols after resume\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_pcm *snd_sof_find_spcm_pcm_id(struct snd_soc_component *scomp,
unsigned int pcm_id)
{
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) {
if (le32_to_cpu(spcm->pcm.pcm_id) == pcm_id)
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;
}
/*
* 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;
int ret;
/* force nocodec mode */
#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
dev_warn(sdev->dev, "Force to use nocodec mode\n");
goto nocodec;
#endif
/* find machine */
snd_sof_machine_select(sdev);
if (sof_pdata->machine) {
snd_sof_set_mach_params(sof_pdata->machine, sdev->dev);
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;
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
nocodec:
#endif
/* 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;
ret = sof_nocodec_setup(sdev->dev, desc->ops);
if (ret < 0)
return ret;
sof_pdata->machine = mach;
snd_sof_set_mach_params(sof_pdata->machine, sdev->dev);
return 0;
}
EXPORT_SYMBOL(sof_machine_check);
int sof_machine_register(struct snd_sof_dev *sdev, void *pdata)
{
struct snd_sof_pdata *plat_data = (struct snd_sof_pdata *)pdata;
const char *drv_name;
const void *mach;
int size;
drv_name = plat_data->machine->drv_name;
mach = (const void *)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 = (struct snd_sof_pdata *)pdata;
if (!IS_ERR_OR_NULL(plat_data->pdev_mach))
platform_device_unregister(plat_data->pdev_mach);
}
EXPORT_SYMBOL(sof_machine_unregister);