From: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Add IPC4 SoundWire blob. It includes a common IPC4 gateway and a multiple
ALH configuration struct which is used for storing the aggregated
SoundWire stream information.
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Rander Wang <rander.wang@xxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
---
sound/soc/sof/ipc4-topology.c | 44 +++++++++++++++++++++++++++++++++++
sound/soc/sof/ipc4-topology.h | 25 ++++++++++++++++++++
2 files changed, 69 insertions(+)
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index d5cb08ec1af1..cb0f0823b8eb 100644
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -476,6 +476,20 @@ static int sof_ipc4_widget_setup_comp_dai(struct snd_sof_widget *swidget)
ipc4_copier->data.gtw_cfg.node_id = SOF_IPC4_NODE_TYPE(node_type);
switch (ipc4_copier->dai_type) {
+ case SOF_DAI_INTEL_ALH:
+ {
+ struct sof_ipc4_alh_configuration_blob *blob;
+
+ blob = kzalloc(sizeof(*blob), GFP_KERNEL);
+ if (!blob) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ ipc4_copier->copier_config = (uint32_t *)blob;
+ ipc4_copier->data.gtw_cfg.config_length = sizeof(*blob) >> 2;
+ break;
+ }
case SOF_DAI_INTEL_SSP:
/* set SSP DAI index as the node_id */
ipc4_copier->data.gtw_cfg.node_id |=
@@ -1053,6 +1067,36 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget,
if (ret < 0)
return ret;
+ switch (swidget->id) {
+ case snd_soc_dapm_dai_in:
+ case snd_soc_dapm_dai_out:
+ {
+ /*
+ * Only SOF_DAI_INTEL_ALH needs copier_data to set blob.
+ * That's why only ALH dai's blob is set after sof_ipc4_init_audio_fmt
+ */
+ if (ipc4_copier->dai_type == SOF_DAI_INTEL_ALH) {
+ struct sof_ipc4_alh_configuration_blob *blob;
+ u32 ch_map;
+ int i;
+
+ blob = (struct sof_ipc4_alh_configuration_blob *)ipc4_copier->copier_config;
+ /* TODO: add aggregation mode support */
+ blob->alh_cfg.count = 1;
+ blob->alh_cfg.mapping[0].alh_id = copier_data->gtw_cfg.node_id;
+ blob->gw_attr.lp_buffer_alloc = 0;
+
+ /* Get channel_mask from ch_map */
+ ch_map = copier_data->base_config.audio_fmt.ch_map;
+ for (i = 0; ch_map; i++) {
+ if ((ch_map & 0xf) != 0xf)
+ blob->alh_cfg.mapping[0].channel_mask |= BIT(i);
+ ch_map >>= 4;
+ }
+ }
+ }
+ }
+
/* modify the input params for the next widget */
fmt = hw_param_mask(pipeline_params, SNDRV_PCM_HW_PARAM_FORMAT);
out_sample_valid_bits =
diff --git a/sound/soc/sof/ipc4-topology.h b/sound/soc/sof/ipc4-topology.h
index 64d836f05bad..1a9c0627bae9 100644
--- a/sound/soc/sof/ipc4-topology.h
+++ b/sound/soc/sof/ipc4-topology.h
@@ -40,6 +40,8 @@
#define SOF_IPC4_GAIN_ALL_CHANNELS_MASK 0xffffffff
#define SOF_IPC4_VOL_ZERO_DB 0x7fffffff
+#define ALH_MAX_NUMBER_OF_GTW 16
+
/**
* struct sof_ipc4_pipeline - pipeline config data
* @priority: Priority of this pipeline
@@ -112,6 +114,29 @@ struct sof_ipc4_gtw_attributes {
uint32_t rsvd : 30;
};
+/** struct sof_ipc4_alh_multi_gtw_cfg: ALH gateway cfg data
+ * @count: Number of streams (valid items in mapping array)
+ * @alh_id: ALH stream id of a single ALH stream aggregated
+ * @channel_mask: Channel mask
+ * @mapping: ALH streams
+ */
+struct sof_ipc4_alh_multi_gtw_cfg {
+ uint32_t count;
+ struct {
+ uint32_t alh_id;
+ uint32_t channel_mask;
+ } mapping[ALH_MAX_NUMBER_OF_GTW];
+} __packed;
+
+/** struct sof_ipc4_alh_configuration_blob: ALH blob
+ * @gw_attr: Gateway attributes
+ * @alh_cfg: ALH configuration data
+ */
+struct sof_ipc4_alh_configuration_blob {
+ struct sof_ipc4_gtw_attributes gw_attr;
+ struct sof_ipc4_alh_multi_gtw_cfg alh_cfg;
+};
+
/**
* struct sof_ipc4_copier - copier config data
* @data: IPC copier data
--
2.25.1
