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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2014-01-23 18:42:00 -0800 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-02-03 12:41:38 +0000 |
| commit | 629509c5bc478c0343d94c8c70812396f44447fb (patch) | |
| tree | cdeab0938f68fe265bdd54b219c369213988f0b4 /include/sound | |
| parent | eb854f6dff24a59378acc8d8eda57a3543a25acc (diff) | |
| download | linux-629509c5bc478c0343d94c8c70812396f44447fb.tar.gz linux-629509c5bc478c0343d94c8c70812396f44447fb.tar.bz2 linux-629509c5bc478c0343d94c8c70812396f44447fb.zip | |
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.h | 6 |
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 */ }; /* |