kernel/sound/soc/sof/compress.c, branch linux-6.2.y

ASoC: SOF: compress: Add copy function for capture case

2022-08-31T11:12:59Z

Added a new copy function used to copy data to user buffer in the case of compress capture. Reviewed-by: Paul Olaru Reviewed-by: Daniel Baluta Signed-off-by: Laurentiu Mihalcea Link: https://lore.kernel.org/r/20220822101502.17644-3-laurentiu.mihalcea@nxp.com Signed-off-by: Mark Brown

ASoC: SOF: compress: Move sof_compr_copy functionality

2022-08-31T11:12:58Z

Since we're preparing to add support for compress capture, we need to move the content of sof_compr_copy into a separate function which handles the playback direction just like the initial sof_compr_copy. Reviewed-by: Paul Olaru Reviewed-by: Daniel Baluta Signed-off-by: Laurentiu Mihalcea Link: https://lore.kernel.org/r/20220822101502.17644-2-laurentiu.mihalcea@nxp.com Signed-off-by: Mark Brown

ASoC: SOF: compress: Remove dai_posn variable

2022-08-23T12:04:52Z

dai_posn is set but never used. Initial intention was to use dai_posn to shorthen one code line but it looks fine without it too. Fixes: c1a731c71359 ("ASoC: SOF: compress: Add support for computing timestamps") Reported-by: kernel test robot Signed-off-by: Daniel Baluta Link: https://lore.kernel.org/r/20220822174937.254873-1-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown

ASoC: SOF: compress: Add support for computing timestamps

2022-08-17T12:00:24Z

We compute the number of pcm_io_frames by dividing the dai position to size of a frame (channels * sample size). Reviewed-by: Paul Olaru Reviewed-by: Pierre-Louis Bossart Signed-off-by: Laurentiu Mihalcea Signed-off-by: Daniel Baluta Link: https://lore.kernel.org/r/20220817080529.10864-5-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown

ASoC: SOF: compress: Save channel count and sample bytes

2022-08-17T12:00:23Z

The purpose of this change is to enable the saving of the channel count and sample container bytes format parameters for later use to compute the timestamps. This is done when setting the compress stream parameters (in sof_compr_set_params). Reviewed-by: Paul Olaru Reviewed-by: Pierre-Louis Bossart Signed-off-by: Laurentiu Mihalcea Signed-off-by: Daniel Baluta Link: https://lore.kernel.org/r/20220817080529.10864-4-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown

ASoC: SOF: compress: Introduce sof_compr_stream

2022-08-17T12:00:22Z

This will keep SOF compress stream private data. So far we used snd_compr_tstamp to hold the private data but this is no longer enough as we need to hold other info like number of channels or sample bytes. Reviewed-by: Paul Olaru Reviewed-by: Pierre-Louis Bossart Signed-off-by: Daniel Baluta Link: https://lore.kernel.org/r/20220817080529.10864-3-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown

ASoC: SOF: compress: Remove byte offset computation

2022-08-17T12:00:21Z

Byte offset is the offset in the ring buffer to the DSP while posn_offset is an offset inside the stream_box where we keep position information. Reviewed-by: Paul Olaru Reviewed-by: Pierre-Louis Bossart Signed-off-by: Daniel Baluta Link: https://lore.kernel.org/r/20220817080529.10864-2-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown

ASoC: SOF: compress: Prevent current kernel running with older FW

2022-07-12T14:22:08Z

After introducing extended parameters we need to forbid older firmware versions to run with the current and future kernel versions. Although in theory the communication protocol will still work the semantics at application level are undefined. So, prevent this by disallowing older firmwares to run with newer kernels. Signed-off-by: Daniel Baluta Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Link: https://lore.kernel.org/r/20220712141531.14599-4-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown

ASoC: SOF: Copy compress parameters into extended data

2022-07-12T14:22:07Z

Allocate memory at the end of sof_ipc_stream_params to store snd_compr_params in order to be sent them to SOF firmware. This will help firmware correctly configure codecs parameters. Notice, that we use 2 bytes from the reserved pool in order to store the extended data length. This is compatible with older FWs where there was no extended data. Signed-off-by: Daniel Baluta Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Link: https://lore.kernel.org/r/20220712141531.14599-3-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown

ASoC: SOF: compress: Dynamically allocate pcm params struct

2022-07-12T14:22:06Z

We need to extend sof_ipc_pcm_parmas with additional data in order to send compress_params to SOF FW. The extensions will be done at runtime so we need to dynamically allocate pcm object of type struct sof_ipc_pcm_params. Signed-off-by: Daniel Baluta Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Link: https://lore.kernel.org/r/20220712141531.14599-2-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown