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STRUCT SND_DMAENGINE(9) PCM API STRUCT SND_DMAENGINE(9)

NAME

struct_snd_dmaengine_dai_dma_data - DAI DMA configuration data

SYNOPSIS

struct snd_dmaengine_dai_dma_data {


  dma_addr_t addr;


  enum dma_slave_buswidth addr_width;


  u32 maxburst;


  unsigned int slave_id;


  void * filter_data;


  const char * chan_name;


  unsigned int fifo_size;


  unsigned int flags;
};

MEMBERS

addr

Address of the DAI data source or destination register.

addr_width

Width of the DAI data source or destination register.

maxburst

Maximum number of words(note: words, as in units of the src_addr_width member, not bytes) that can be send to or received from the DAI in one burst.

slave_id

Slave requester id for the DMA channel.

filter_data

Custom DMA channel filter data, this will usually be used when requesting the DMA channel.

chan_name

Custom channel name to use when requesting DMA channel.

fifo_size

FIFO size of the DAI controller in bytes

flags

PCM_DAI flags, only SND_DMAENGINE_PCM_DAI_FLAG_PACK for now

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.