diff options
Diffstat (limited to 'include/sound/dmaengine_pcm.h')
| -rw-r--r-- | include/sound/dmaengine_pcm.h | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index b877334bbb0f..95620428a59b 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -32,9 +32,6 @@ snd_pcm_substream_to_dma_direction(const struct snd_pcm_substream *substream) return DMA_DEV_TO_MEM; } -void snd_dmaengine_pcm_set_data(struct snd_pcm_substream *substream, void *data); -void *snd_dmaengine_pcm_get_data(struct snd_pcm_substream *substream); - int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream, const struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config); int snd_dmaengine_pcm_trigger(struct snd_pcm_substream *substream, int cmd); @@ -47,4 +44,28 @@ int snd_dmaengine_pcm_close(struct snd_pcm_substream *substream); struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream); +/** + * struct snd_dmaengine_dai_dma_data - DAI DMA configuration data + * @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. + */ +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; +}; + +void snd_dmaengine_pcm_set_config_from_dai_data( + const struct snd_pcm_substream *substream, + const struct snd_dmaengine_dai_dma_data *dma_data, + struct dma_slave_config *config); + #endif |