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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-12 08:57:04 -0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-12 08:57:04 -0400
commit38e8c895d33b0642dc341f83cce0adde4cffbc82 (patch)
tree3657c043986d5c944f971c9685ae4a68f5a5b035 /include/sound
parentd66e065c5b8b64b03a9d9b8a7c5d674c7dfa2e3d (diff)
parent69b6f19622ce0aef41df884b75e3f789c64b89c0 (diff)
Merge remote-tracking branch 'asoc/topic/dma' into asoc-next
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/dmaengine_pcm.h27
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)
32 return DMA_DEV_TO_MEM; 32 return DMA_DEV_TO_MEM;
33} 33}
34 34
35void snd_dmaengine_pcm_set_data(struct snd_pcm_substream *substream, void *data);
36void *snd_dmaengine_pcm_get_data(struct snd_pcm_substream *substream);
37
38int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream, 35int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream,
39 const struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config); 36 const struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config);
40int snd_dmaengine_pcm_trigger(struct snd_pcm_substream *substream, int cmd); 37int 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);
47 44
48struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream); 45struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream);
49 46
47/**
48 * struct snd_dmaengine_dai_dma_data - DAI DMA configuration data
49 * @addr: Address of the DAI data source or destination register.
50 * @addr_width: Width of the DAI data source or destination register.
51 * @maxburst: Maximum number of words(note: words, as in units of the
52 * src_addr_width member, not bytes) that can be send to or received from the
53 * DAI in one burst.
54 * @slave_id: Slave requester id for the DMA channel.
55 * @filter_data: Custom DMA channel filter data, this will usually be used when
56 * requesting the DMA channel.
57 */
58struct snd_dmaengine_dai_dma_data {
59 dma_addr_t addr;
60 enum dma_slave_buswidth addr_width;
61 u32 maxburst;
62 unsigned int slave_id;
63 void *filter_data;
64};
65
66void snd_dmaengine_pcm_set_config_from_dai_data(
67 const struct snd_pcm_substream *substream,
68 const struct snd_dmaengine_dai_dma_data *dma_data,
69 struct dma_slave_config *config);
70
50#endif 71#endif