diff options
| -rw-r--r-- | sound/soc/sof/ipc4-topology.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sound/soc/sof/ipc4-topology.h b/sound/soc/sof/ipc4-topology.h index 6b59434fbd60..f1d26b5c21d7 100644 --- a/sound/soc/sof/ipc4-topology.h +++ b/sound/soc/sof/ipc4-topology.h @@ -242,6 +242,44 @@ struct sof_ipc4_dma_stream_ch_map { struct sof_ipc4_dma_device_stream_ch_map mapping[SOF_IPC4_DMA_DEVICE_MAX_COUNT]; } __packed; +#define SOF_IPC4_DMA_METHOD_HDA 1 +#define SOF_IPC4_DMA_METHOD_GPDMA 2 /* defined for consistency but not used */ + +/** + * struct sof_ipc4_dma_config: DMA configuration + * @dma_method: HDAudio or GPDMA + * @pre_allocated_by_host: 1 if host driver allocates DMA channels, 0 otherwise + * @dma_channel_id: for HDaudio defined as @stream_id - 1 + * @stream_id: HDaudio stream tag + * @dma_stream_channel_map: array of device/channel mappings + * @dma_priv_config_size: currently not used + * @dma_priv_config: currently not used + */ +struct sof_ipc4_dma_config { + uint8_t dma_method; + uint8_t pre_allocated_by_host; + uint16_t rsvd; + uint32_t dma_channel_id; + uint32_t stream_id; + struct sof_ipc4_dma_stream_ch_map dma_stream_channel_map; + uint32_t dma_priv_config_size; + uint8_t dma_priv_config[]; +} __packed; + +#define SOF_IPC4_GTW_DMA_CONFIG_ID 0x1000 + +/** + * struct sof_ipc4_dma_config: DMA configuration + * @type: set to SOF_IPC4_GTW_DMA_CONFIG_ID + * @length: sizeof(struct sof_ipc4_dma_config) + dma_config.dma_priv_config_size + * @dma_config: actual DMA configuration + */ +struct sof_ipc4_dma_config_tlv { + uint32_t type; + uint32_t length; + struct sof_ipc4_dma_config dma_config; +} __packed; + /** struct sof_ipc4_alh_configuration_blob: ALH blob * @gw_attr: Gateway attributes * @alh_cfg: ALH configuration data |