From 426476344f01096c7dae6c5413cc8a8d9bbdea29 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Tue, 13 Feb 2024 12:12:37 +0200 Subject: ASoC: SOF: ipc4: store number of playback/capture streams MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The CHAIN_DMA IPC needs the number of playback streams as a start offset for the dma_id of a capture stream. This offset can be retrieved on Intel platforms from the GCAP information, and stored in the sof_ipc4_fw_data structure. One could argue that the fields added are not really dependent on any firmware definitions but rather on hardware capabilities, but they are required for the IPC CHAIN_DMA definitions so adding them in ipc4_fw_data isn't completely silly. The CHAIN_DMA IPC is currently only functional on Intel HDaudio DMAs, and gated by the snd_sof_is_chain_dma_supported() helper. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Péter Ujfalusi Reviewed-by: Bard Liao Signed-off-by: Peter Ujfalusi Link: https://msgid.link/r/20240213101247.28887-6-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/sof/ipc4-priv.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sound/soc/sof/ipc4-priv.h') diff --git a/sound/soc/sof/ipc4-priv.h b/sound/soc/sof/ipc4-priv.h index 1d39836d5efa..f3b908b093f9 100644 --- a/sound/soc/sof/ipc4-priv.h +++ b/sound/soc/sof/ipc4-priv.h @@ -66,6 +66,8 @@ struct sof_ipc4_fw_library { * @nhlt: NHLT table either from the BIOS or the topology manifest * @mtrace_type: mtrace type supported on the booted platform * @mtrace_log_bytes: log bytes as reported by the firmware via fw_config reply + * @num_playback_streams: max number of playback DMAs, needed for CHAIN_DMA offset + * @num_capture_streams: max number of capture DMAs * @max_num_pipelines: max number of pipelines * @max_libs_count: Maximum number of libraries support by the FW including the * base firmware @@ -79,6 +81,8 @@ struct sof_ipc4_fw_data { void *nhlt; enum sof_ipc4_mtrace_type mtrace_type; u32 mtrace_log_bytes; + int num_playback_streams; + int num_capture_streams; int max_num_pipelines; u32 max_libs_count; bool fw_context_save; -- cgit v1.2.3