// 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 // //
/* 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;
}
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;
ret = iops->set_get_data(sdev, msg, msg->data_size, set); if (!set) goto unlock;
/* It is a set-data operation, and we have a valid 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, msg, msg->data_size, set); if (ret < 0) goto unlock;
}
unlock: if (lock)
mutex_unlock(&swidget->setup_mutex);
/* 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) {
params.channels = SOF_IPC4_GAIN_ALL_CHANNELS_MASK;
params.init_val = cdata->chanv[0].value;
} else {
params.channels = cdata->chanv[i].channel;
params.init_val = cdata->chanv[i].value;
}
/* set curve type and duration from topology */
params.curve_duration_l = gain->data.params.curve_duration_l;
params.curve_duration_h = gain->data.params.curve_duration_h;
params.curve_type = gain->data.params.curve_type;
/* 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);
data_size = struct_size(data, chanv, scontrol->num_channels);
data = kzalloc(data_size, GFP_KERNEL); if (!data) return -ENOMEM;
data->id = cdata->index;
data->num_elems = scontrol->num_channels; for (i = 0; i < scontrol->num_channels; i++) {
data->chanv[i].channel = cdata->chanv[i].channel;
data->chanv[i].value = cdata->chanv[i].value;
}
msg->data_ptr = data;
msg->data_size = data_size;
ret = sof_ipc4_set_get_kcontrol_data(scontrol, true, lock);
msg->data_ptr = NULL;
msg->data_size = 0; if (ret < 0)
dev_err(sdev->dev, "Failed to set control update for %s\n",
scontrol->name);
ret = sof_ipc4_set_get_kcontrol_data(scontrol, set, lock); if (ret < 0)
dev_err(sdev->dev, "Failed to %s for %s\n",
set ? "set bytes update" : "get bytes",
scontrol->name);
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);
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;
}
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);
/* * 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 header id */ if (header.numid != SOF_CTRL_CMD_BINARY) {
dev_err_ratelimited(scomp->dev, "Incorrect numid for bytes put %d\n",
header.numid); return -EINVAL;
}
/* Verify the ABI header first */ if (copy_from_user(&abi_hdr, tlvd->tlv, sizeof(abi_hdr))) return -EFAULT;
if (abi_hdr.magic != SOF_IPC4_ABI_MAGIC) {
dev_err_ratelimited(scomp->dev, "Wrong ABI magic 0x%08x\n",
abi_hdr.magic); return -EINVAL;
}
if (abi_hdr.size > scontrol->max_size - sizeof(abi_hdr)) {
dev_err_ratelimited(scomp->dev, "%u bytes of control data is invalid, max is %zu\n",
abi_hdr.size, scontrol->max_size - sizeof(abi_hdr)); 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;
}
/* Copy the whole binary data which includes the ABI header and the payload */ if (copy_from_user(data, tlvd->tlv, header.length)) {
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; return -EFAULT;
}
/* * 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);
/* get all the component data from DSP */ if (from_dsp) { struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); int ret = sof_ipc4_set_get_bytes_data(sdev, scontrol, false, true);
if (ret < 0) return ret;
/* Set the ABI magic (if the control is not initialized) */
data->magic = SOF_IPC4_ABI_MAGIC;
}
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;
}
if (ndata->event_data_size < sizeof(*msg_data)) {
dev_err(sdev->dev, "%s: Invalid event data size for module %u.%u: %u\n",
__func__, ndata->module_id, ndata->instance_id,
ndata->event_data_size); return;
}
event_param_id = ndata->event_id & SOF_IPC4_NOTIFY_MODULE_EVENTID_ALSA_PARAMID_MASK; switch (event_param_id) { case SOF_IPC4_SWITCH_CONTROL_PARAM_ID:
type = SND_SOC_TPLG_TYPE_MIXER; break; case SOF_IPC4_ENUM_CONTROL_PARAM_ID:
type = SND_SOC_TPLG_TYPE_ENUM; break; default:
dev_err(sdev->dev, "%s: Invalid control type for module %u.%u: %u\n",
__func__, ndata->module_id, ndata->instance_id,
event_param_id); return;
}
/* Find the swidget based on ndata->module_id and ndata->instance_id */
swidget = sof_ipc4_find_swidget_by_ids(sdev, ndata->module_id,
ndata->instance_id); if (!swidget) {
dev_err(sdev->dev, "%s: Failed to find widget for module %u.%u\n",
__func__, ndata->module_id, ndata->instance_id); return;
}
/* Find the scontrol which is the source of the notification */
msg_data = (struct sof_ipc4_control_msg_payload *)ndata->event_data;
list_for_each_entry(scontrol, &sdev->kcontrol_list, list) { if (scontrol->comp_id == swidget->comp_id) {
u32 local_param_id;
cdata = scontrol->ipc_control_data; /* * The scontrol's param_id is stored in the IPC message * template's extension
*/
local_param_id = PARAM_ID_FROM_EXTENSION(cdata->msg.extension); if (local_param_id == event_param_id &&
msg_data->id == cdata->index) {
scontrol_found = true; break;
}
}
}
if (!scontrol_found) {
dev_err(sdev->dev, "%s: Failed to find control on widget %s: %u:%u\n",
__func__, swidget->widget->name, ndata->event_id & 0xffff,
msg_data->id); return;
}
if (msg_data->num_elems) { /* * The message includes the updated value/data, update the * control's local cache using the received notification
*/ for (i = 0; i < msg_data->num_elems; i++) {
u32 channel = msg_data->chanv[i].channel;
if (channel >= scontrol->num_channels) {
dev_warn(sdev->dev, "Invalid channel index for %s: %u\n",
scontrol->name, i);
/* * Mark the scontrol as dirty to force a refresh * on next read
*/
scontrol->comp_data_dirty = true; break;
}
cdata->chanv[channel].value = msg_data->chanv[i].value;
}
} else { /* * Mark the scontrol as dirty because the value/data is changed * in firmware, forcing a refresh on next read access
*/
scontrol->comp_data_dirty = true;
}
/* * Look up the ALSA kcontrol of the scontrol to be able to send a * notification to user space
*/
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;
}
}
/* set up all controls for the widget */ staticint sof_ipc4_widget_kcontrol_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
{ struct snd_sof_control *scontrol; int ret = 0;
list_for_each_entry(scontrol, &sdev->kcontrol_list, list) { if (scontrol->comp_id == swidget->comp_id) { switch (scontrol->info_type) { case SND_SOC_TPLG_CTL_VOLSW: case SND_SOC_TPLG_CTL_VOLSW_SX: case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
ret = sof_ipc4_volsw_setup(sdev, swidget, scontrol); break; case SND_SOC_TPLG_CTL_BYTES:
ret = sof_ipc4_set_get_bytes_data(sdev, scontrol, true, false); break; case SND_SOC_TPLG_CTL_ENUM: case SND_SOC_TPLG_CTL_ENUM_VALUE:
ret = sof_ipc4_set_generic_control_data(sdev, swidget,
scontrol, false); break; default: break;
}
if (ret < 0) {
dev_err(sdev->dev, "kcontrol %d set up failed for widget %s\n",
scontrol->comp_id, swidget->widget->name); return ret;
}
}
}
return 0;
}
staticint
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 */
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