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// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2021-2022 Intel Corporation
//
// Authors: Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
// Cezary Rojewski <cezary.rojewski@intel.com>
//
#include <linux/cleanup.h>
#include <sound/soc.h>
#include "avs.h"
#include "control.h"
#include "messages.h"
#include "path.h"
static struct avs_dev *avs_get_kcontrol_adev(struct snd_kcontrol *kcontrol)
{
struct snd_soc_dapm_widget *w;
w = snd_soc_dapm_kcontrol_widget(kcontrol);
return to_avs_dev(w->dapm->component->dev);
}
static struct avs_path_module *avs_get_volume_module(struct avs_dev *adev, u32 id)
{
struct avs_path *path;
struct avs_path_pipeline *ppl;
struct avs_path_module *mod;
spin_lock(&adev->path_list_lock);
list_for_each_entry(path, &adev->path_list, node) {
list_for_each_entry(ppl, &path->ppl_list, node) {
list_for_each_entry(mod, &ppl->mod_list, node) {
guid_t *type = &mod->template->cfg_ext->type;
if ((guid_equal(type, &AVS_PEAKVOL_MOD_UUID) ||
guid_equal(type, &AVS_GAIN_MOD_UUID)) &&
mod->template->ctl_id == id) {
spin_unlock(&adev->path_list_lock);
return mod;
}
}
}
}
spin_unlock(&adev->path_list_lock);
return NULL;
}
int avs_control_volume_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uctl)
{
struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
struct avs_control_data *ctl_data = mc->dobj.private;
struct avs_path_module *active_module;
struct avs_volume_cfg *dspvols;
struct avs_dev *adev;
size_t num_dspvols;
int ret, i;
adev = avs_get_kcontrol_adev(kctl);
/* Prevent access to modules while path is being constructed. */
guard(mutex)(&adev->path_mutex);
active_module = avs_get_volume_module(adev, ctl_data->id);
if (active_module) {
ret = avs_ipc_peakvol_get_volume(adev, active_module->module_id,
active_module->instance_id, &dspvols,
&num_dspvols);
if (ret)
return AVS_IPC_RET(ret);
/* Do not copy more than the control can store. */
num_dspvols = min_t(u32, num_dspvols, SND_SOC_TPLG_MAX_CHAN);
for (i = 0; i < num_dspvols; i++)
ctl_data->values[i] = dspvols[i].target_volume;
kfree(dspvols);
}
memcpy(uctl->value.integer.value, ctl_data->values, sizeof(ctl_data->values));
return 0;
}
int avs_control_volume_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uctl)
{
struct avs_path_module *active_module;
struct avs_control_data *ctl_data;
struct soc_mixer_control *mc;
struct avs_dev *adev;
long *input;
int ret, i;
mc = (struct soc_mixer_control *)kctl->private_value;
ctl_data = mc->dobj.private;
adev = avs_get_kcontrol_adev(kctl);
input = uctl->value.integer.value;
i = 0;
/* mc->num_channels can be 0. */
do {
if (input[i] < mc->min || input[i] > mc->max)
return -EINVAL;
} while (++i < mc->num_channels);
if (!memcmp(ctl_data->values, input, sizeof(ctl_data->values)))
return 0;
/* Prevent access to modules while path is being constructed. */
guard(mutex)(&adev->path_mutex);
active_module = avs_get_volume_module(adev, ctl_data->id);
if (active_module) {
ret = avs_peakvol_set_volume(adev, active_module, mc, input);
if (ret)
return ret;
}
memcpy(ctl_data->values, input, sizeof(ctl_data->values));
return 1;
}
int avs_control_volume_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = max_t(u32, 1, mc->num_channels);
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mc->max;
return 0;
}
int avs_control_mute_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uctl)
{
struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
struct avs_control_data *ctl_data = mc->dobj.private;
struct avs_path_module *active_module;
struct avs_mute_cfg *dspmutes;
struct avs_dev *adev;
size_t num_dspmutes;
int ret, i;
adev = avs_get_kcontrol_adev(kctl);
/* Prevent access to modules while path is being constructed. */
guard(mutex)(&adev->path_mutex);
active_module = avs_get_volume_module(adev, ctl_data->id);
if (active_module) {
ret = avs_ipc_peakvol_get_mute(adev, active_module->module_id,
active_module->instance_id, &dspmutes,
&num_dspmutes);
if (ret)
return AVS_IPC_RET(ret);
/* Do not copy more than the control can store. */
num_dspmutes = min_t(u32, num_dspmutes, SND_SOC_TPLG_MAX_CHAN);
for (i = 0; i < num_dspmutes; i++)
ctl_data->values[i] = !dspmutes[i].mute;
kfree(dspmutes);
}
memcpy(uctl->value.integer.value, ctl_data->values, sizeof(ctl_data->values));
return 0;
}
int avs_control_mute_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uctl)
{
struct avs_path_module *active_module;
struct avs_control_data *ctl_data;
struct soc_mixer_control *mc;
struct avs_dev *adev;
long *input;
int ret, i;
mc = (struct soc_mixer_control *)kctl->private_value;
ctl_data = mc->dobj.private;
adev = avs_get_kcontrol_adev(kctl);
input = uctl->value.integer.value;
i = 0;
/* mc->num_channels can be 0. */
do {
if (input[i] < mc->min || input[i] > mc->max)
return -EINVAL;
} while (++i < mc->num_channels);
if (!memcmp(ctl_data->values, input, sizeof(ctl_data->values)))
return 0;
/* Prevent access to modules while path is being constructed. */
guard(mutex)(&adev->path_mutex);
active_module = avs_get_volume_module(adev, ctl_data->id);
if (active_module) {
ret = avs_peakvol_set_mute(adev, active_module, mc, input);
if (ret)
return ret;
}
memcpy(ctl_data->values, input, sizeof(ctl_data->values));
return 1;
}
int avs_control_mute_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = max_t(u32, 1, mc->num_channels);
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mc->max;
return 0;
}
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