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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2014-01-23 18:42:00 -0800
committerMark Brown <broonie@linaro.org>2014-02-03 12:41:38 +0000
commit629509c5bc478c0343d94c8c70812396f44447fb (patch)
treecdeab0938f68fe265bdd54b219c369213988f0b4 /include/sound
parenteb854f6dff24a59378acc8d8eda57a3543a25acc (diff)
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ASoC: rsnd: add Gen2 SRC and DMAEngine support
Renesas sound Gen2 has SRC (= Sampling Rate Converter) which needs 2 DMAC. The data path image when you use SRC on Gen2 is [mem] -> Audio-DMAC -> SRC -> Audio-DMAC-peri-peri -> SSIU -> SSI This patch support SRC and DMAEnine. It is tested on R-Car H2 Lager board Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/rcar_snd.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/sound/rcar_snd.h b/include/sound/rcar_snd.h
index 1d19bfc2486d..2be05aea54f9 100644
--- a/include/sound/rcar_snd.h
+++ b/include/sound/rcar_snd.h
@@ -56,9 +56,15 @@ struct rsnd_ssi_platform_info {
*/
#define RSND_SCU_USE_HPBIF (1 << 31) /* it needs RSND_SSI_DEPENDENT */
+#define RSND_SCU_SET(rate, _dma_id) \
+ { .flags = RSND_SCU_USE_HPBIF, .convert_rate = rate, .dma_id = _dma_id, }
+#define RSND_SCU_UNUSED \
+ { .flags = 0, .convert_rate = 0, .dma_id = 0, }
+
struct rsnd_scu_platform_info {
u32 flags;
u32 convert_rate; /* sampling rate convert */
+ int dma_id; /* for Gen2 SCU */
};
/*