diff options
Diffstat (limited to 'include/sound/dmaengine_pcm.h')
| -rw-r--r-- | include/sound/dmaengine_pcm.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index 2df54cf02cb3..9472f0a966a2 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -36,9 +36,8 @@ snd_pcm_uframes_t snd_dmaengine_pcm_pointer_no_residue(struct snd_pcm_substream int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream, struct dma_chan *chan); int snd_dmaengine_pcm_close(struct snd_pcm_substream *substream); +int snd_dmaengine_pcm_sync_stop(struct snd_pcm_substream *substream); -int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream, - dma_filter_fn filter_fn, void *filter_data); int snd_dmaengine_pcm_close_release_chan(struct snd_pcm_substream *substream); struct dma_chan *snd_dmaengine_pcm_request_channel(dma_filter_fn filter_fn, @@ -70,6 +69,10 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream) * @peripheral_config: peripheral configuration for programming peripheral * for dmaengine transfer * @peripheral_size: peripheral configuration buffer size + * @port_window_size: The length of the register area in words the data need + * to be accessed on the device side. It is only used for devices which is using + * an area instead of a single register to send/receive the data. Typically the + * DMA loops in this area in order to transfer the data. */ struct snd_dmaengine_dai_dma_data { dma_addr_t addr; @@ -81,6 +84,7 @@ struct snd_dmaengine_dai_dma_data { unsigned int flags; void *peripheral_config; size_t peripheral_size; + u32 port_window_size; }; void snd_dmaengine_pcm_set_config_from_dai_data( @@ -118,6 +122,7 @@ int snd_dmaengine_pcm_refine_runtime_hwparams( * which do not use devicetree. * @process: Callback used to apply processing on samples transferred from/to * user space. + * @name: Component name. If null, dev_name will be used. * @compat_filter_fn: Will be used as the filter function when requesting a * channel for platforms which do not use devicetree. The filter parameter * will be the DAI's DMA data. @@ -142,7 +147,8 @@ struct snd_dmaengine_pcm_config { struct snd_pcm_substream *substream); int (*process)(struct snd_pcm_substream *substream, int channel, unsigned long hwoff, - void *buf, unsigned long bytes); + unsigned long bytes); + const char *name; dma_filter_fn compat_filter_fn; struct device *dma_dev; const char *chan_names[SNDRV_PCM_STREAM_LAST + 1]; |