ASoC: rsnd: SSI + DMA can select BUSIF
Sound data needs to be sent to R-Car sound SSI when playback.
But, there are 2 interfaces for it.
1st is SSITDR/SSIRDR which are mapped on SSI.
2nd is SSIn_BUSIF which are mapped on SSIU.
2nd SSIn_BUSIF is used when DMA transfer,
and it is always used if sound data came from via SRC.
But, we can use it when SSI+DMA case too.
(Current driver is assuming 1st SSITDR/SSIRDR for it)
2nd SSIn_BUSIF can be used as FIFO.
This is very helpful/useful for SSI+DMA.
But DMA address / DMA ID are not same between 1st/2nd cases.
This patch care about these settings.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 067a89e..a1466c1 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -185,6 +185,7 @@
struct rsnd_mod_ops {
char *name;
+ char* (*dma_name)(struct rsnd_mod *mod);
int (*probe)(struct rsnd_mod *mod,
struct rsnd_dai *rdai);
int (*remove)(struct rsnd_mod *mod,
@@ -224,6 +225,7 @@
enum rsnd_mod_type type,
int id);
char *rsnd_mod_name(struct rsnd_mod *mod);
+char *rsnd_mod_dma_name(struct rsnd_mod *mod);
/*
* R-Car sound DAI
@@ -391,8 +393,12 @@
unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
struct rsnd_dai_stream *io,
struct snd_pcm_runtime *runtime);
-int rsnd_src_ssi_mode_init(struct rsnd_mod *ssi_mod,
- struct rsnd_dai *rdai);
+int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
+ struct rsnd_dai *rdai,
+ int use_busif);
+int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
+ struct rsnd_dai *rdai,
+ int use_busif);
int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
struct rsnd_dai *rdai);