Enum controls use generic param_id and a generic struct where the data
is passed to the firmware.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/ipc4-control.c | 64 +++++++++++++++++++++++++++++++++++
sound/soc/sof/ipc4-topology.c | 33 ++++++++++++++++++
2 files changed, 97 insertions(+)
diff --git a/sound/soc/sof/ipc4-control.c b/sound/soc/sof/ipc4-control.c
index cabdd891c644..938efaceb81c 100644
--- a/sound/soc/sof/ipc4-control.c
+++ b/sound/soc/sof/ipc4-control.c
@@ -297,6 +297,63 @@ static int sof_ipc4_switch_get(struct snd_sof_control *scontrol,
return 0;
}
+static bool sof_ipc4_enum_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);
+ struct snd_sof_widget *swidget;
+ bool widget_found = false;
+ bool change = false;
+ unsigned int i;
+ u32 value;
+ int ret;
+
+ /* update each channel */
+ for (i = 0; i < scontrol->num_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;
+ }
+
+ 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_generic_control_data(sdev, swidget, scontrol, true);
+ if (ret < 0)
+ return false;
+
+ return change;
+}
+
+static int sof_ipc4_enum_get(struct snd_sof_control *scontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
+ unsigned int i;
+
+ /* read back each channel */
+ for (i = 0; i < scontrol->num_channels; i++)
+ ucontrol->value.enumerated.item[i] = cdata->chanv[i].value;
+
+ return 0;
+}
+
static int sof_ipc4_set_get_bytes_data(struct snd_sof_dev *sdev,
struct snd_sof_control *scontrol,
bool set, bool lock)
@@ -562,6 +619,11 @@ static int sof_ipc4_widget_kcontrol_setup(struct snd_sof_dev *sdev, struct snd_s
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;
}
@@ -605,6 +667,8 @@ const struct sof_ipc_tplg_control_ops tplg_ipc4_control_ops = {
.volume_get = sof_ipc4_volume_get,
.switch_put = sof_ipc4_switch_put,
.switch_get = sof_ipc4_switch_get,
+ .enum_put = sof_ipc4_enum_put,
+ .enum_get = sof_ipc4_enum_get,
.bytes_put = sof_ipc4_bytes_put,
.bytes_get = sof_ipc4_bytes_get,
.bytes_ext_put = sof_ipc4_bytes_ext_put,
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index ef18379e0f19..bf91c8786162 100644
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -2128,6 +2128,36 @@ static int sof_ipc4_control_load_volume(struct snd_sof_dev *sdev, struct snd_sof
return 0;
}
+static int sof_ipc4_control_load_enum(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol)
+{
+ struct sof_ipc4_control_data *control_data;
+ struct sof_ipc4_msg *msg;
+ int i;
+
+ scontrol->size = struct_size(control_data, chanv, scontrol->num_channels);
+
+ /* scontrol->ipc_control_data will be freed in sof_control_unload */
+ scontrol->ipc_control_data = kzalloc(scontrol->size, GFP_KERNEL);
+ if (!scontrol->ipc_control_data)
+ return -ENOMEM;
+
+ control_data = scontrol->ipc_control_data;
+ control_data->index = scontrol->index;
+
+ msg = &control_data->msg;
+ msg->primary = SOF_IPC4_MSG_TYPE_SET(SOF_IPC4_MOD_LARGE_CONFIG_SET);
+ msg->primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);
+ msg->primary |= SOF_IPC4_MSG_TARGET(SOF_IPC4_MODULE_MSG);
+
+ msg->extension = SOF_IPC4_MOD_EXT_MSG_PARAM_ID(SOF_IPC4_ENUM_CONTROL_PARAM_ID);
+
+ /* Default, initial value for enums: first enum entry is selected (0) */
+ for (i = 0; i < scontrol->num_channels; i++)
+ control_data->chanv[i].channel = i;
+
+ return 0;
+}
+
static int sof_ipc4_control_load_bytes(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol)
{
struct sof_ipc4_control_data *control_data;
@@ -2202,6 +2232,9 @@ static int sof_ipc4_control_setup(struct snd_sof_dev *sdev, struct snd_sof_contr
return sof_ipc4_control_load_volume(sdev, scontrol);
case SND_SOC_TPLG_CTL_BYTES:
return sof_ipc4_control_load_bytes(sdev, scontrol);
+ case SND_SOC_TPLG_CTL_ENUM:
+ case SND_SOC_TPLG_CTL_ENUM_VALUE:
+ return sof_ipc4_control_load_enum(sdev, scontrol);
default:
break;
}
--
2.42.0
