diff options
| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2024-02-13 12:12:37 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-02-13 13:28:55 +0000 |
| commit | 426476344f01096c7dae6c5413cc8a8d9bbdea29 (patch) | |
| tree | 31c2d8b906a7419d9006504f88a77707e13024d0 /sound/soc/sof/intel/hda-stream.c | |
| parent | a5b7767723e739c700f5c56841790a85bd7f13ae (diff) | |
ASoC: SOF: ipc4: store number of playback/capture streams
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 <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://msgid.link/r/20240213101247.28887-6-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/intel/hda-stream.c')
| -rw-r--r-- | sound/soc/sof/intel/hda-stream.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c index f2ebadbbcc10..b387b1a69d7e 100644 --- a/sound/soc/sof/intel/hda-stream.c +++ b/sound/soc/sof/intel/hda-stream.c @@ -21,6 +21,7 @@ #include <trace/events/sof_intel.h> #include "../ops.h" #include "../sof-audio.h" +#include "../ipc4-priv.h" #include "hda.h" #define HDA_LTRP_GB_VALUE_US 95 @@ -937,6 +938,14 @@ int hda_dsp_stream_init(struct snd_sof_dev *sdev) /* store total stream count (playback + capture) from GCAP */ sof_hda->stream_max = num_total; + /* store stream count from GCAP required for CHAIN_DMA */ + if (sdev->pdata->ipc_type == SOF_IPC_TYPE_4) { + struct sof_ipc4_fw_data *ipc4_data = sdev->private; + + ipc4_data->num_playback_streams = num_playback; + ipc4_data->num_capture_streams = num_capture; + } + return 0; } |