Name

snd_dmaengine_pcm_prepare_slave_config — Generic prepare_slave_config callback

Synopsis

int snd_dmaengine_pcm_prepare_slave_config (struct snd_pcm_substream * substream,
 struct snd_pcm_hw_params * params,
 struct dma_slave_config * slave_config);
 

Arguments

substream

PCM substream

params

hw_params

slave_config

DMA slave config to prepare

Description

This function can be used as a generic prepare_slave_config callback for platforms which make use of the snd_dmaengine_dai_dma_data struct for their DAI DMA data. Internally the function will first call snd_hwparams_to_dma_slave_config to fill in the slave config based on the hw_params, followed by snd_dmaengine_set_config_from_dai_data to fill in the remaining fields based on the DAI DMA data.