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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) 2022 Intel Corporation. All rights reserved.
//
//
#include "sof-priv.h"
#include "sof-audio.h"
#include "ipc4-priv.h"
#include "ipc4-topology.h"
static int sof_ipc4_set_get_kcontrol_data(struct snd_sof_control *scontrol, bool set)
{
struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
const struct sof_ipc_ops *iops = sdev->ipc->ops;
struct sof_ipc4_msg *msg = &cdata->msg;
struct snd_sof_widget *swidget;
bool widget_found = false;
/* find widget associated with the control */
list_for_each_entry(swidget, &sdev->widget_list, list) {
if (swidget->comp_id == scontrol->comp_id) {
widget_found = true;
break;
}
}
if (!widget_found) {
dev_err(scomp->dev, "Failed to find widget for kcontrol %s\n", scontrol->name);
return -ENOENT;
}
/*
* Volatile controls should always be part of static pipelines and the widget use_count
* would always be > 0 in this case. For the others, just return the cached value if the
* widget is not set up.
*/
if (!swidget->use_count)
return 0;
msg->primary &= ~SOF_IPC4_MOD_INSTANCE_MASK;
msg->primary |= SOF_IPC4_MOD_INSTANCE(swidget->instance_id);
return iops->set_get_data(sdev, msg, msg->data_size, set);
}
static int
sof_ipc4_set_volume_data(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget,
struct snd_sof_control *scontrol)
{
struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
struct sof_ipc4_gain *gain = swidget->private;
struct sof_ipc4_msg *msg = &cdata->msg;
struct sof_ipc4_gain_data data;
bool all_channels_equal = true;
u32 value;
int ret, i;
/* check if all channel values are equal */
value = cdata->chanv[0].value;
for (i = 1; i < scontrol->num_channels; i++) {
if (cdata->chanv[i].value != value) {
all_channels_equal = false;
break;
}
}
/*
* notify DSP with a single IPC message if all channel values are equal. Otherwise send
* a separate IPC for each channel.
*/
for (i = 0; i < scontrol->num_channels; i++) {
if (all_channels_equal) {
data.channels = SOF_IPC4_GAIN_ALL_CHANNELS_MASK;
data.init_val = cdata->chanv[0].value;
} else {
data.channels = cdata->chanv[i].channel;
data.init_val = cdata->chanv[i].value;
}
/* set curve type and duration from topology */
data.curve_duration_l = gain->data.curve_duration_l;
data.curve_duration_h = gain->data.curve_duration_h;
data.curve_type = gain->data.curve_type;
msg->data_ptr = &data;
msg->data_size = sizeof(data);
ret = sof_ipc4_set_get_kcontrol_data(scontrol, true);
msg->data_ptr = NULL;
msg->data_size = 0;
if (ret < 0) {
dev_err(sdev->dev, "Failed to set volume update for %s\n",
scontrol->name);
return ret;
}
if (all_channels_equal)
break;
}
return 0;
}
static bool sof_ipc4_volume_put(struct snd_sof_control *scontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
struct snd_soc_component *scomp = scontrol->scomp;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
unsigned int channels = scontrol->num_channels;
struct snd_sof_widget *swidget;
bool widget_found = false;
bool change = false;
unsigned int i;
int ret;
/* update each channel */
for (i = 0; i < channels; i++) {
u32 value = mixer_to_ipc(ucontrol->value.integer.value[i],
scontrol->volume_table, scontrol->max + 1);
change = change || (value != cdata->chanv[i].value);
cdata->chanv[i].channel = i;
cdata->chanv[i].value = value;
}
if (!pm_runtime_active(scomp->dev))
return change;
/* find widget associated with the control */
list_for_each_entry(swidget, &sdev->widget_list, list) {
if (swidget->comp_id == scontrol->comp_id) {
widget_found = true;
break;
}
}
if (!widget_found) {
dev_err(scomp->dev, "Failed to find widget for kcontrol %s\n", scontrol->name);
return false;
}
ret = sof_ipc4_set_volume_data(sdev, swidget, scontrol);
if (ret < 0)
return false;
return change;
}
static int sof_ipc4_volume_get(struct snd_sof_control *scontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
unsigned int channels = scontrol->num_channels;
unsigned int i;
for (i = 0; i < channels; i++)
ucontrol->value.integer.value[i] = ipc_to_mixer(cdata->chanv[i].value,
scontrol->volume_table,
scontrol->max + 1);
return 0;
}
/* set up all controls for the widget */
static int sof_ipc4_widget_kcontrol_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
{
struct snd_sof_control *scontrol;
int ret;
list_for_each_entry(scontrol, &sdev->kcontrol_list, list)
if (scontrol->comp_id == swidget->comp_id) {
ret = sof_ipc4_set_volume_data(sdev, swidget, scontrol);
if (ret < 0) {
dev_err(sdev->dev, "%s: kcontrol %d set up failed for widget %s\n",
__func__, scontrol->comp_id, swidget->widget->name);
return ret;
}
}
return 0;
}
static int
sof_ipc4_set_up_volume_table(struct snd_sof_control *scontrol, int tlv[SOF_TLV_ITEMS], int size)
{
int i;
/* init the volume table */
scontrol->volume_table = kcalloc(size, sizeof(u32), GFP_KERNEL);
if (!scontrol->volume_table)
return -ENOMEM;
/* populate the volume table */
for (i = 0; i < size ; i++) {
u32 val = vol_compute_gain(i, tlv);
u64 q31val = ((u64)val) << 15; /* Can be over Q1.31, need to saturate */
scontrol->volume_table[i] = q31val > SOF_IPC4_VOL_ZERO_DB ?
SOF_IPC4_VOL_ZERO_DB : q31val;
}
return 0;
}
const struct sof_ipc_tplg_control_ops tplg_ipc4_control_ops = {
.volume_put = sof_ipc4_volume_put,
.volume_get = sof_ipc4_volume_get,
.widget_kcontrol_setup = sof_ipc4_widget_kcontrol_setup,
.set_up_volume_table = sof_ipc4_set_up_volume_table,
};
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