diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-12-17 02:57:47 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-12-18 12:10:56 (GMT) |
| commit | 750fd445ac53f1623cfcbf710d2bfc7aa1b7086d (patch) | |
| tree | e1a5c2e39ac561df77b55d4e09a74fabfd0f7432 /sound/soc/sh | |
| parent | c140284b8085e0fa07c24f4285db9dc107ad2ed3 (diff) | |
| download | linux-750fd445ac53f1623cfcbf710d2bfc7aa1b7086d.tar.xz | |
ASoC: rsnd: add rsnd_set_slot() / rsnd_get_slot_num()
TDM will use 6 or 8 slots on 1 SSI, and Multi channel will use
6 or 8 slots on few SSI (each SSI uses 2 slots).
Thus, this adds new slot control functions which can be prepare
for Multi channel support.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sh')
| -rw-r--r-- | sound/soc/sh/rcar/core.c | 20 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/rsnd.h | 4 |
2 files changed, 21 insertions, 3 deletions
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 76af416..528041e 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -191,6 +191,13 @@ int rsnd_io_is_working(struct rsnd_dai_stream *io) return !!io->substream; } +void rsnd_set_slot(struct rsnd_dai *rdai, + int slots, int num) +{ + rdai->slots = slots; + rdai->slots_num = num; +} + int rsnd_get_slot(struct rsnd_dai_stream *io) { struct rsnd_dai *rdai = rsnd_io_to_rdai(io); @@ -198,10 +205,17 @@ int rsnd_get_slot(struct rsnd_dai_stream *io) return rdai->slots; } +int rsnd_get_slot_num(struct rsnd_dai_stream *io) +{ + struct rsnd_dai *rdai = rsnd_io_to_rdai(io); + + return rdai->slots_num; +} + int rsnd_get_slot_width(struct rsnd_dai_stream *io) { struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); - int chan = runtime->channels; + int chan = runtime->channels / rsnd_get_slot_num(io); /* TDM Extend Mode needs 8ch */ if (chan == 6) @@ -579,7 +593,7 @@ static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai, switch (slots) { case 6: /* TDM Extend Mode */ - rdai->slots = slots; + rsnd_set_slot(rdai, slots, 1); break; default: dev_err(dev, "unsupported TDM slots (%d)\n", slots); @@ -660,7 +674,7 @@ static int rsnd_dai_probe(struct rsnd_priv *priv) rdai->playback.rdai = rdai; rdai->capture.rdai = rdai; - rdai->slots = 2; /* default */ + rsnd_set_slot(rdai, 2, 1); /* default */ #define mod_parse(name) \ node = rsnd_##name##_of_node(priv); \ diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 804f2f5..c9aef23 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -293,8 +293,11 @@ void rsnd_mod_interrupt(struct rsnd_mod *mod, void (*callback)(struct rsnd_mod *mod, struct rsnd_dai_stream *io)); +void rsnd_set_slot(struct rsnd_dai *rdai, + int slots, int slots_total); int rsnd_get_slot(struct rsnd_dai_stream *io); int rsnd_get_slot_width(struct rsnd_dai_stream *io); +int rsnd_get_slot_num(struct rsnd_dai_stream *io); /* * R-Car sound DAI @@ -334,6 +337,7 @@ struct rsnd_dai { struct rsnd_priv *priv; int slots; + int slots_num; unsigned int clk_master:1; unsigned int bit_clk_inv:1; |