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linux/sound/soc/sof/control.c
Peter Ujfalusi cfa12c3679
ASoC: SOF: control: Extend the optionality of IPC ops to IPC as well 
The IPC ops are optional, but they require that the ops struct is to be
allocated with all callbacks set to NULL.

Update the code to extend the optionality to:
sdev->ipc == NULL
sdev->ipc->ops == NULL
sdev->ipc->ops->[tplg] == NULL
sdev->ipc->ops->[tplg]->control == NULL
sdev->ipc->ops->[tplg]->control->ops == NULL (treated optional currently)

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Link: https://lore.kernel.org/r/20221221102328.9635-6-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-12-25 23:32:33 +00:00

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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) 2018 Intel Corporation. All rights reserved.
//
// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//
/* Mixer Controls */
#include <linux/pm_runtime.h>
#include <linux/leds.h>
#include "sof-priv.h"
#include "sof-audio.h"
int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *sm = (struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->volume_get)
return tplg_ops->control->volume_get(scontrol, ucontrol);
return 0;
}
int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *sm = (struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->volume_put)
return tplg_ops->control->volume_put(scontrol, ucontrol);
return false;
}
int snd_sof_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
struct soc_mixer_control *sm = (struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
unsigned int channels = scontrol->num_channels;
int platform_max;
if (!sm->platform_max)
sm->platform_max = sm->max;
platform_max = sm->platform_max;
if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
else
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = channels;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = platform_max - sm->min;
return 0;
}
int snd_sof_switch_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *sm = (struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->switch_get)
return tplg_ops->control->switch_get(scontrol, ucontrol);
return 0;
}
int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *sm = (struct soc_mixer_control *)kcontrol->private_value;
struct snd_sof_control *scontrol = sm->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->switch_put)
return tplg_ops->control->switch_put(scontrol, ucontrol);
return false;
}
int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_enum *se = (struct soc_enum *)kcontrol->private_value;
struct snd_sof_control *scontrol = se->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->enum_get)
return tplg_ops->control->enum_get(scontrol, ucontrol);
return 0;
}
int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_enum *se = (struct soc_enum *)kcontrol->private_value;
struct snd_sof_control *scontrol = se->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->enum_put)
return tplg_ops->control->enum_put(scontrol, ucontrol);
return false;
}
int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *be = (struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_get)
return tplg_ops->control->bytes_get(scontrol, ucontrol);
return 0;
}
int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *be = (struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_put)
return tplg_ops->control->bytes_put(scontrol, ucontrol);
return 0;
}
int snd_sof_bytes_ext_put(struct snd_kcontrol *kcontrol,
const unsigned int __user *binary_data,
unsigned int size)
{
struct soc_bytes_ext *be = (struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
/* make sure we have at least a header */
if (size < sizeof(struct snd_ctl_tlv))
return -EINVAL;
if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_ext_put)
return tplg_ops->control->bytes_ext_put(scontrol, binary_data, size);
return 0;
}
int snd_sof_bytes_ext_volatile_get(struct snd_kcontrol *kcontrol, unsigned int __user *binary_data,
unsigned int size)
{
struct soc_bytes_ext *be = (struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
int ret, err;
ret = pm_runtime_resume_and_get(scomp->dev);
if (ret < 0 && ret != -EACCES) {
dev_err_ratelimited(scomp->dev, "%s: failed to resume %d\n", __func__, ret);
return ret;
}
if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_ext_volatile_get)
ret = tplg_ops->control->bytes_ext_volatile_get(scontrol, binary_data, size);
pm_runtime_mark_last_busy(scomp->dev);
err = pm_runtime_put_autosuspend(scomp->dev);
if (err < 0)
dev_err_ratelimited(scomp->dev, "%s: failed to idle %d\n", __func__, err);
return ret;
}
int snd_sof_bytes_ext_get(struct snd_kcontrol *kcontrol,
unsigned int __user *binary_data,
unsigned int size)
{
struct soc_bytes_ext *be = (struct soc_bytes_ext *)kcontrol->private_value;
struct snd_sof_control *scontrol = be->dobj.private;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_ext_get)
return tplg_ops->control->bytes_ext_get(scontrol, binary_data, size);
return 0;
}
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