// 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) 2021 Intel Corporation
//
//

#include "sof-priv.h"
#include "sof-audio.h"
#include "ipc3-priv.h"

/* IPC set()/get() for kcontrols. */
static int sof_ipc3_set_get_kcontrol_data(struct snd_sof_control *scontrol,
                                          bool set, bool lock)
{
        struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scontrol->scomp);
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        const struct sof_ipc_ops *iops = sdev->ipc->ops;
        enum sof_ipc_ctrl_type ctrl_type;
        struct snd_sof_widget *swidget;
        bool widget_found = false;
        u32 ipc_cmd, msg_bytes;
        int ret = 0;

        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(sdev->dev, "%s: can't find widget with id %d\n", __func__,
                        scontrol->comp_id);
                return -EINVAL;
        }

        if (lock)
                mutex_lock(&swidget->setup_mutex);
        else
                lockdep_assert_held(&swidget->setup_mutex);

        /*
         * 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)
                goto unlock;

        /*
         * Select the IPC cmd and the ctrl_type based on the ctrl_cmd and the
         * direction
         * Note: SOF_CTRL_TYPE_VALUE_COMP_* is not used and supported currently
         *       for ctrl_type
         */
        if (cdata->cmd == SOF_CTRL_CMD_BINARY) {
                ipc_cmd = set ? SOF_IPC_COMP_SET_DATA : SOF_IPC_COMP_GET_DATA;
                ctrl_type = set ? SOF_CTRL_TYPE_DATA_SET : SOF_CTRL_TYPE_DATA_GET;
        } else {
                ipc_cmd = set ? SOF_IPC_COMP_SET_VALUE : SOF_IPC_COMP_GET_VALUE;
                ctrl_type = set ? SOF_CTRL_TYPE_VALUE_CHAN_SET : SOF_CTRL_TYPE_VALUE_CHAN_GET;
        }

        cdata->rhdr.hdr.cmd = SOF_IPC_GLB_COMP_MSG | ipc_cmd;
        cdata->type = ctrl_type;
        cdata->comp_id = scontrol->comp_id;
        cdata->msg_index = 0;

        /* calculate header and data size */
        switch (cdata->type) {
        case SOF_CTRL_TYPE_VALUE_CHAN_GET:
        case SOF_CTRL_TYPE_VALUE_CHAN_SET:
                cdata->num_elems = scontrol->num_channels;

                msg_bytes = scontrol->num_channels *
                            sizeof(struct sof_ipc_ctrl_value_chan);
                msg_bytes += sizeof(struct sof_ipc_ctrl_data);
                break;
        case SOF_CTRL_TYPE_DATA_GET:
        case SOF_CTRL_TYPE_DATA_SET:
                cdata->num_elems = cdata->data->size;

                msg_bytes = cdata->data->size;
                msg_bytes += sizeof(struct sof_ipc_ctrl_data) +
                             sizeof(struct sof_abi_hdr);
                break;
        default:
                ret = -EINVAL;
                goto unlock;
        }

        cdata->rhdr.hdr.size = msg_bytes;
        cdata->elems_remaining = 0;

        ret = iops->set_get_data(sdev, cdata, cdata->rhdr.hdr.size, set);
        if (!set)
                goto unlock;

        /* It is a set-data operation, and we have a backup that we can restore */
        if (ret < 0) {
                if (!scontrol->old_ipc_control_data)
                        goto unlock;
                /*
                 * Current ipc_control_data is not valid, we use the last known good
                 * configuration
                 */
                memcpy(scontrol->ipc_control_data, scontrol->old_ipc_control_data,
                       scontrol->max_size);
                kfree(scontrol->old_ipc_control_data);
                scontrol->old_ipc_control_data = NULL;
                /* Send the last known good configuration to firmware */
                ret = iops->set_get_data(sdev, cdata, cdata->rhdr.hdr.size, set);
                if (ret < 0)
                        goto unlock;
        }

unlock:
        if (lock)
                mutex_unlock(&swidget->setup_mutex);

        return ret;
}

static void sof_ipc3_refresh_control(struct snd_sof_control *scontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        struct snd_soc_component *scomp = scontrol->scomp;
        int ret;

        if (!scontrol->comp_data_dirty)
                return;

        if (!pm_runtime_active(scomp->dev))
                return;

        /* set the ABI header values */
        cdata->data->magic = SOF_ABI_MAGIC;
        cdata->data->abi = SOF_ABI_VERSION;

        /* refresh the component data from DSP */
        scontrol->comp_data_dirty = false;
        ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, true);
        if (ret < 0) {
                dev_err(scomp->dev, "Failed to get control data: %d\n", ret);

                /* Set the flag to re-try next time to get the data */
                scontrol->comp_data_dirty = true;
        }
}

static int sof_ipc3_volume_get(struct snd_sof_control *scontrol,
                               struct snd_ctl_elem_value *ucontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        unsigned int channels = scontrol->num_channels;
        unsigned int i;

        sof_ipc3_refresh_control(scontrol);

        /* read back each channel */
        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;
}

static bool sof_ipc3_volume_put(struct snd_sof_control *scontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        struct snd_soc_component *scomp = scontrol->scomp;
        unsigned int channels = scontrol->num_channels;
        unsigned int i;
        bool change = false;

        /* 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;
        }

        /* notify DSP of mixer updates */
        if (pm_runtime_active(scomp->dev)) {
                int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true);

                if (ret < 0) {
                        dev_err(scomp->dev, "Failed to set mixer updates for %s\n",
                                scontrol->name);
                        return false;
                }
        }

        return change;
}

static int sof_ipc3_switch_get(struct snd_sof_control *scontrol,
                               struct snd_ctl_elem_value *ucontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        unsigned int channels = scontrol->num_channels;
        unsigned int i;

        sof_ipc3_refresh_control(scontrol);

        /* read back each channel */
        for (i = 0; i < channels; i++)
                ucontrol->value.integer.value[i] = cdata->chanv[i].value;

        return 0;
}

static bool sof_ipc3_switch_put(struct snd_sof_control *scontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        struct snd_soc_component *scomp = scontrol->scomp;
        unsigned int channels = scontrol->num_channels;
        unsigned int i;
        bool change = false;
        u32 value;

        /* update each channel */
        for (i = 0; i < channels; i++) {
                value = ucontrol->value.integer.value[i];
                change = change || (value != cdata->chanv[i].value);
                cdata->chanv[i].channel = i;
                cdata->chanv[i].value = value;
        }

        /* notify DSP of mixer updates */
        if (pm_runtime_active(scomp->dev)) {
                int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true);

                if (ret < 0) {
                        dev_err(scomp->dev, "Failed to set mixer updates for %s\n",
                                scontrol->name);
                        return false;
                }
        }

        return change;
}

static int sof_ipc3_enum_get(struct snd_sof_control *scontrol,
                             struct snd_ctl_elem_value *ucontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        unsigned int channels = scontrol->num_channels;
        unsigned int i;

        sof_ipc3_refresh_control(scontrol);

        /* read back each channel */
        for (i = 0; i < channels; i++)
                ucontrol->value.enumerated.item[i] = cdata->chanv[i].value;

        return 0;
}

static bool sof_ipc3_enum_put(struct snd_sof_control *scontrol,
                              struct snd_ctl_elem_value *ucontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        struct snd_soc_component *scomp = scontrol->scomp;
        unsigned int channels = scontrol->num_channels;
        unsigned int i;
        bool change = false;
        u32 value;

        /* update each channel */
        for (i = 0; i < channels; i++) {
                value = ucontrol->value.enumerated.item[i];
                change = change || (value != cdata->chanv[i].value);
                cdata->chanv[i].channel = i;
                cdata->chanv[i].value = value;
        }

        /* notify DSP of enum updates */
        if (pm_runtime_active(scomp->dev)) {
                int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true);

                if (ret < 0) {
                        dev_err(scomp->dev, "Failed to set enum updates for %s\n",
                                scontrol->name);
                        return false;
                }
        }

        return change;
}

static int sof_ipc3_bytes_get(struct snd_sof_control *scontrol,
                              struct snd_ctl_elem_value *ucontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        struct snd_soc_component *scomp = scontrol->scomp;
        struct sof_abi_hdr *data = cdata->data;
        size_t size;

        sof_ipc3_refresh_control(scontrol);

        if (scontrol->max_size > sizeof(ucontrol->value.bytes.data)) {
                dev_err_ratelimited(scomp->dev, "data max %zu exceeds ucontrol data array size\n",
                                    scontrol->max_size);
                return -EINVAL;
        }

        /* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
        if (data->size > scontrol->max_size - sizeof(*data)) {
                dev_err_ratelimited(scomp->dev,
                                    "%u bytes of control data is invalid, max is %zu\n",
                                    data->size, scontrol->max_size - sizeof(*data));
                return -EINVAL;
        }

        size = data->size + sizeof(*data);

        /* copy back to kcontrol */
        memcpy(ucontrol->value.bytes.data, data, size);

        return 0;
}

static int sof_ipc3_bytes_put(struct snd_sof_control *scontrol,
                              struct snd_ctl_elem_value *ucontrol)
{
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        struct snd_soc_component *scomp = scontrol->scomp;
        struct sof_abi_hdr *data = cdata->data;
        size_t size;

        if (scontrol->max_size > sizeof(ucontrol->value.bytes.data)) {
                dev_err_ratelimited(scomp->dev, "data max %zu exceeds ucontrol data array size\n",
                                    scontrol->max_size);
                return -EINVAL;
        }

        /* scontrol->max_size has been verified to be >= sizeof(struct sof_abi_hdr) */
        if (data->size > scontrol->max_size - sizeof(*data)) {
                dev_err_ratelimited(scomp->dev, "data size too big %u bytes max is %zu\n",
                                    data->size, scontrol->max_size - sizeof(*data));
                return -EINVAL;
        }

        size = data->size + sizeof(*data);

        /* copy from kcontrol */
        memcpy(data, ucontrol->value.bytes.data, size);

        /* notify DSP of byte control updates */
        if (pm_runtime_active(scomp->dev))
                return sof_ipc3_set_get_kcontrol_data(scontrol, true, true);

        return 0;
}

static int sof_ipc3_bytes_ext_put(struct snd_sof_control *scontrol,
                                  const unsigned int __user *binary_data,
                                  unsigned int size)
{
        const struct snd_ctl_tlv __user *tlvd = (const struct snd_ctl_tlv __user *)binary_data;
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        struct snd_soc_component *scomp = scontrol->scomp;
        struct snd_ctl_tlv header;
        int ret = -EINVAL;

        /*
         * The beginning of bytes data contains a header from where
         * the length (as bytes) is needed to know the correct copy
         * length of data from tlvd->tlv.
         */
        if (copy_from_user(&header, tlvd, sizeof(struct snd_ctl_tlv)))
                return -EFAULT;

        /* make sure TLV info is consistent */
        if (header.length + sizeof(struct snd_ctl_tlv) > size) {
                dev_err_ratelimited(scomp->dev, "Inconsistent TLV, data %d + header %zu > %d\n",
                                    header.length, sizeof(struct snd_ctl_tlv), size);
                return -EINVAL;
        }

        /* be->max is coming from topology */
        if (header.length > scontrol->max_size) {
                dev_err_ratelimited(scomp->dev, "Bytes data size %d exceeds max %zu\n",
                                    header.length, scontrol->max_size);
                return -EINVAL;
        }

        /* Check that header id matches the command */
        if (header.numid != cdata->cmd) {
                dev_err_ratelimited(scomp->dev, "Incorrect command for bytes put %d\n",
                                    header.numid);
                return -EINVAL;
        }

        if (!scontrol->old_ipc_control_data) {
                /* Create a backup of the current, valid bytes control */
                scontrol->old_ipc_control_data = kmemdup(scontrol->ipc_control_data,
                                                         scontrol->max_size, GFP_KERNEL);
                if (!scontrol->old_ipc_control_data)
                        return -ENOMEM;
        }

        if (copy_from_user(cdata->data, tlvd->tlv, header.length)) {
                ret = -EFAULT;
                goto err_restore;
        }

        if (cdata->data->magic != SOF_ABI_MAGIC) {
                dev_err_ratelimited(scomp->dev, "Wrong ABI magic 0x%08x\n", cdata->data->magic);
                goto err_restore;
        }

        if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, cdata->data->abi)) {
                dev_err_ratelimited(scomp->dev, "Incompatible ABI version 0x%08x\n",
                                    cdata->data->abi);
                goto err_restore;
        }

        /* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
        if (cdata->data->size > scontrol->max_size - sizeof(struct sof_abi_hdr)) {
                dev_err_ratelimited(scomp->dev, "Mismatch in ABI data size (truncated?)\n");
                goto err_restore;
        }

        /* notify DSP of byte control updates */
        if (pm_runtime_active(scomp->dev)) {
                /* Actually send the data to the DSP; this is an opportunity to validate the data */
                return sof_ipc3_set_get_kcontrol_data(scontrol, true, true);
        }

        return 0;

err_restore:
        /* If we have an issue, we restore the old, valid bytes control data */
        if (scontrol->old_ipc_control_data) {
                memcpy(cdata->data, scontrol->old_ipc_control_data, scontrol->max_size);
                kfree(scontrol->old_ipc_control_data);
                scontrol->old_ipc_control_data = NULL;
        }
        return ret;
}

static int _sof_ipc3_bytes_ext_get(struct snd_sof_control *scontrol,
                                   const unsigned int __user *binary_data,
                                   unsigned int size, bool from_dsp)
{
        struct snd_ctl_tlv __user *tlvd = (struct snd_ctl_tlv __user *)binary_data;
        struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
        struct snd_soc_component *scomp = scontrol->scomp;
        struct snd_ctl_tlv header;
        size_t data_size;

        /*
         * Decrement the limit by ext bytes header size to
         * ensure the user space buffer is not exceeded.
         */
        if (size < sizeof(struct snd_ctl_tlv))
                return -ENOSPC;

        size -= sizeof(struct snd_ctl_tlv);

        /* set the ABI header values */
        cdata->data->magic = SOF_ABI_MAGIC;
        cdata->data->abi = SOF_ABI_VERSION;

        /* get all the component data from DSP */
        if (from_dsp) {
                int ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, true);

                if (ret < 0)
                        return ret;
        }

        /* check data size doesn't exceed max coming from topology */
        if (cdata->data->size > scontrol->max_size - sizeof(struct sof_abi_hdr)) {
                dev_err_ratelimited(scomp->dev, "User data size %d exceeds max size %zu\n",
                                    cdata->data->size,
                                    scontrol->max_size - sizeof(struct sof_abi_hdr));
                return -EINVAL;
        }

        data_size = cdata->data->size + sizeof(struct sof_abi_hdr);

        /* make sure we don't exceed size provided by user space for data */
        if (data_size > size)
                return -ENOSPC;

        header.numid = cdata->cmd;
        header.length = data_size;
        if (copy_to_user(tlvd, &header, sizeof(struct snd_ctl_tlv)))
                return -EFAULT;

        if (copy_to_user(tlvd->tlv, cdata->data, data_size))
                return -EFAULT;

        return 0;
}

static int sof_ipc3_bytes_ext_get(struct snd_sof_control *scontrol,
                                  const unsigned int __user *binary_data, unsigned int size)
{
        return _sof_ipc3_bytes_ext_get(scontrol, binary_data, size, false);
}

static int sof_ipc3_bytes_ext_volatile_get(struct snd_sof_control *scontrol,
                                           const unsigned int __user *binary_data,
                                           unsigned int size)
{
        return _sof_ipc3_bytes_ext_get(scontrol, binary_data, size, true);
}

static void snd_sof_update_control(struct snd_sof_control *scontrol,
                                   struct sof_ipc_ctrl_data *cdata)
{
        struct snd_soc_component *scomp = scontrol->scomp;
        struct sof_ipc_ctrl_data *local_cdata;
        int i;

        local_cdata = scontrol->ipc_control_data;

        if (cdata->cmd == SOF_CTRL_CMD_BINARY) {
                if (cdata->num_elems != local_cdata->data->size) {
                        dev_err(scomp->dev, "cdata binary size mismatch %u - %u\n",
                                cdata->num_elems, local_cdata->data->size);
                        return;
                }

                /* copy the new binary data */
                memcpy(local_cdata->data, cdata->data, cdata->num_elems);
        } else if (cdata->num_elems != scontrol->num_channels) {
                dev_err(scomp->dev, "cdata channel count mismatch %u - %d\n",
                        cdata->num_elems, scontrol->num_channels);
        } else {
                /* copy the new values */
                for (i = 0; i < cdata->num_elems; i++)
                        local_cdata->chanv[i].value = cdata->chanv[i].value;
        }
}

static void sof_ipc3_control_update(struct snd_sof_dev *sdev, void *ipc_control_message)
{
        struct sof_ipc_ctrl_data *cdata = ipc_control_message;
        struct snd_soc_dapm_widget *widget;
        struct snd_sof_control *scontrol;
        struct snd_sof_widget *swidget;
        struct snd_kcontrol *kc = NULL;
        struct soc_mixer_control *sm;
        struct soc_bytes_ext *be;
        size_t expected_size;
        struct soc_enum *se;
        bool found = false;
        int i, type;

        if (cdata->type == SOF_CTRL_TYPE_VALUE_COMP_GET ||
            cdata->type == SOF_CTRL_TYPE_VALUE_COMP_SET) {
                dev_err(sdev->dev, "Component data is not supported in control notification\n");
                return;
        }

        /* Find the swidget first */
        list_for_each_entry(swidget, &sdev->widget_list, list) {
                if (swidget->comp_id == cdata->comp_id) {
                        found = true;
                        break;
                }
        }

        if (!found)
                return;

        /* Translate SOF cmd to TPLG type */
        switch (cdata->cmd) {
        case SOF_CTRL_CMD_VOLUME:
        case SOF_CTRL_CMD_SWITCH:
                type = SND_SOC_TPLG_TYPE_MIXER;
                break;
        case SOF_CTRL_CMD_BINARY:
                type = SND_SOC_TPLG_TYPE_BYTES;
                break;
        case SOF_CTRL_CMD_ENUM:
                type = SND_SOC_TPLG_TYPE_ENUM;
                break;
        default:
                dev_err(sdev->dev, "Unknown cmd %u in %s\n", cdata->cmd, __func__);
                return;
        }

        widget = swidget->widget;
        for (i = 0; i < widget->num_kcontrols; i++) {
                /* skip non matching types or non matching indexes within type */
                if (widget->dobj.widget.kcontrol_type[i] == type &&
                    widget->kcontrol_news[i].index == cdata->index) {
                        kc = widget->kcontrols[i];
                        break;
                }
        }

        if (!kc)
                return;

        switch (cdata->cmd) {
        case SOF_CTRL_CMD_VOLUME:
        case SOF_CTRL_CMD_SWITCH:
                sm = (struct soc_mixer_control *)kc->private_value;
                scontrol = sm->dobj.private;
                break;
        case SOF_CTRL_CMD_BINARY:
                be = (struct soc_bytes_ext *)kc->private_value;
                scontrol = be->dobj.private;
                break;
        case SOF_CTRL_CMD_ENUM:
                se = (struct soc_enum *)kc->private_value;
                scontrol = se->dobj.private;
                break;
        default:
                return;
        }

        expected_size = sizeof(struct sof_ipc_ctrl_data);
        switch (cdata->type) {
        case SOF_CTRL_TYPE_VALUE_CHAN_GET:
        case SOF_CTRL_TYPE_VALUE_CHAN_SET:
                expected_size += cdata->num_elems *
                                 sizeof(struct sof_ipc_ctrl_value_chan);
                break;
        case SOF_CTRL_TYPE_DATA_GET:
        case SOF_CTRL_TYPE_DATA_SET:
                expected_size += cdata->num_elems + sizeof(struct sof_abi_hdr);
                break;
        default:
                return;
        }

        if (cdata->rhdr.hdr.size != expected_size) {
                dev_err(sdev->dev, "Component notification size mismatch\n");
                return;
        }

        if (cdata->num_elems)
                /*
                 * The message includes the updated value/data, update the
                 * control's local cache using the received notification
                 */
                snd_sof_update_control(scontrol, cdata);
        else
                /* Mark the scontrol that the value/data is changed in SOF */
                scontrol->comp_data_dirty = true;

        snd_ctl_notify_one(swidget->scomp->card->snd_card, SNDRV_CTL_EVENT_MASK_VALUE, kc, 0);
}

static int sof_ipc3_widget_kcontrol_setup(struct snd_sof_dev *sdev,
                                          struct snd_sof_widget *swidget)
{
        struct snd_sof_control *scontrol;
        int ret;

        /* set up all controls for the widget */
        list_for_each_entry(scontrol, &sdev->kcontrol_list, list)
                if (scontrol->comp_id == swidget->comp_id) {
                        /* set kcontrol data in DSP */
                        ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, false);
                        if (ret < 0) {
                                dev_err(sdev->dev,
                                        "kcontrol %d set up failed for widget %s\n",
                                        scontrol->comp_id, swidget->widget->name);
                                return ret;
                        }

                        /*
                         * Read back the data from the DSP for static widgets.
                         * This is particularly useful for binary kcontrols
                         * associated with static pipeline widgets to initialize
                         * the data size to match that in the DSP.
                         */
                        if (swidget->dynamic_pipeline_widget)
                                continue;

                        ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, false);
                        if (ret < 0)
                                dev_warn(sdev->dev,
                                         "kcontrol %d read failed for widget %s\n",
                                         scontrol->comp_id, swidget->widget->name);
                }

        return 0;
}

static int
sof_ipc3_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++)
                scontrol->volume_table[i] = vol_compute_gain(i, tlv);

        return 0;
}

const struct sof_ipc_tplg_control_ops tplg_ipc3_control_ops = {
        .volume_put = sof_ipc3_volume_put,
        .volume_get = sof_ipc3_volume_get,
        .switch_put = sof_ipc3_switch_put,
        .switch_get = sof_ipc3_switch_get,
        .enum_put = sof_ipc3_enum_put,
        .enum_get = sof_ipc3_enum_get,
        .bytes_put = sof_ipc3_bytes_put,
        .bytes_get = sof_ipc3_bytes_get,
        .bytes_ext_put = sof_ipc3_bytes_ext_put,
        .bytes_ext_get = sof_ipc3_bytes_ext_get,
        .bytes_ext_volatile_get = sof_ipc3_bytes_ext_volatile_get,
        .update = sof_ipc3_control_update,
        .widget_kcontrol_setup = sof_ipc3_widget_kcontrol_setup,
        .set_up_volume_table = sof_ipc3_set_up_volume_table,
};