Lines Matching +full:dma +full:- +full:maxburst

1 /* SPDX-License-Identifier: GPL-2.0+
4  *	Author: Lars-Peter Clausen <lars@metafoo.de>
15  * snd_pcm_substream_to_dma_direction - Get dma_transfer_direction for a PCM
19  * Return: DMA transfer direction
24 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)  in snd_pcm_substream_to_dma_direction()
49  * The DAI supports packed transfers, eg 2 16-bit samples in a 32-bit word.
51  * the supported sample formats and set the DMA transfer size to undefined.
59  * struct snd_dmaengine_dai_dma_data - DAI DMA configuration data
62  * @maxburst: Maximum number of words(note: words, as in units of the
65  * @filter_data: Custom DMA channel filter data, this will usually be used when
66  * requesting the DMA channel.
67  * @chan_name: Custom channel name to use when requesting DMA channel.
77 	u32 maxburst;  member
98  * Try to request the DMA channel using compat_request_channel or
103  * Don't try to request the DMA channels through devicetree. This flag only
108  * The PCM is half duplex and the DMA channel is shared between capture and
114  * struct snd_dmaengine_pcm_config - Configuration data for dmaengine based PCM
115  * @prepare_slave_config: Callback used to fill in the DMA slave_config for a
117  * @compat_request_channel: Callback to request a DMA channel for platforms
123  *  will be the DAI's DMA data.
124  * @dma_dev: If set, request DMA channel on this device rather than the DAI
126  * @chan_names: If set, these custom DMA channel names will be requested at