Define the control_setup op for IPC4 topology IPC ops to handle the
volume kcontrol types. Support for other kcontrol types will be added in
the follow up patches.
Co-developed-by: Rander Wang <rander.wang@xxxxxxxxxxxxxxx>
Signed-off-by: Rander Wang <rander.wang@xxxxxxxxxxxxxxx>
Co-developed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
---
sound/soc/sof/ipc4-topology.c | 49 +++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index 35457fe4edd9..0c36b7cb6e79 100644
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -15,6 +15,8 @@
#include "ipc4-topology.h"
#include "ops.h"
+#define SOF_IPC4_GAIN_PARAM_ID 0
+
static const struct sof_topology_token ipc4_sched_tokens[] = {
{SOF_TKN_SCHED_LP_MODE, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
offsetof(struct sof_ipc4_pipeline, lp_mode)}
@@ -1030,6 +1032,52 @@ static int sof_ipc4_prepare_mixer_module(struct snd_sof_widget *swidget,
return sof_ipc4_widget_assign_instance_id(sdev, swidget);
}
+static int sof_ipc4_control_load_volume(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_GAIN_PARAM_ID);
+
+ /* set default volume values to 0dB in control */
+ for (i = 0; i < scontrol->num_channels; i++) {
+ control_data->chanv[i].channel = i;
+ control_data->chanv[i].value = SOF_IPC4_VOL_ZERO_DB;
+ }
+
+ return 0;
+}
+
+static int sof_ipc4_control_setup(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol)
+{
+ 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:
+ return sof_ipc4_control_load_volume(sdev, scontrol);
+ default:
+ break;
+ }
+
+ return 0;
+}
+
static enum sof_tokens host_token_list[] = {
SOF_COMP_TOKENS,
SOF_AUDIO_FMT_NUM_TOKENS,
@@ -1108,4 +1156,5 @@ static const struct sof_ipc_tplg_widget_ops tplg_ipc4_widget_ops[SND_SOC_DAPM_TY
const struct sof_ipc_tplg_ops ipc4_tplg_ops = {
.widget = tplg_ipc4_widget_ops,
.token_list = ipc4_token_list,
+ .control_setup = sof_ipc4_control_setup,
};
--
2.25.1
