xref: /openbmc/linux/sound/soc/sof/control.c (revision 67ec2a091630c28ea8d05db2bd7178a05b04b7e6)

// 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"

static void update_mute_led(struct snd_sof_control *scontrol,
			    struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{
	int temp = 0;
	int mask;
	int i;

	mask = 1U << snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

	for (i = 0; i < scontrol->num_channels; i++) {
		if (ucontrol->value.integer.value[i]) {
			temp |= mask;
			break;
		}
	}

	if (temp == scontrol->led_ctl.led_value)
		return;

	scontrol->led_ctl.led_value = temp;

#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
	if (!scontrol->led_ctl.direction)
		ledtrig_audio_set(LED_AUDIO_MUTE, temp ? LED_OFF : LED_ON);
	else
		ledtrig_audio_set(LED_AUDIO_MICMUTE, temp ? LED_OFF : LED_ON);
#endif
}

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 = sdev->ipc->ops->tplg;

	if (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 = sdev->ipc->ops->tplg;

	if (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 = sdev->ipc->ops->tplg;

	if (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 = sdev->ipc->ops->tplg;

	if (scontrol->led_ctl.use_led)
		update_mute_led(scontrol, kcontrol, ucontrol);

	if (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 = sdev->ipc->ops->tplg;

	if (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 = sdev->ipc->ops->tplg;

	if (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 = sdev->ipc->ops->tplg;

	if (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 = sdev->ipc->ops->tplg;

	if (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 = sdev->ipc->ops->tplg;

	/* make sure we have at least a header */
	if (size < sizeof(struct snd_ctl_tlv))
		return -EINVAL;

	if (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 = sdev->ipc->ops->tplg;
	int ret, err;

	ret = pm_runtime_get_sync(scomp->dev);
	if (ret < 0 && ret != -EACCES) {
		dev_err_ratelimited(scomp->dev, "%s: failed to resume %d\n", __func__, ret);
		pm_runtime_put_noidle(scomp->dev);
		return ret;
	}

	if (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 = sdev->ipc->ops->tplg;

	if (tplg_ops->control->bytes_ext_get)
		return tplg_ops->control->bytes_ext_get(scontrol, binary_data, size);

	return 0;
}