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@linux.intel.com Signed-off-by: Rander Wang rander.wang@linux.intel.com Co-developed-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Péter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com --- 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, };