diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-11-30 08:53:27 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-11-30 18:11:23 +0000 |
| commit | 8ec85e7f7e9a2f9c36a92596db53c30b1ca45f17 (patch) | |
| tree | e758662a548248a928abce71473b45f3db03cba6 /sound/soc/sh/rcar/core.c | |
| parent | 08bada26fe8089f908484a3a4580f38e78502ac7 (diff) | |
| download | linux-8ec85e7f7e9a2f9c36a92596db53c30b1ca45f17.tar.bz2 | |
ASoC: rsnd: ssi enables non-stereo sound
Current SSI is assuming that the sound is always stereo. But, SSI needs
to calculate its frequency when master mode. Then This frequency depends
on each SSI's slots, and TDM mode (= TDM Extend Mode, TDM split Mode,
TDM Multichannel Mode).
This patch enables to use non-stereo sound.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sh/rcar/core.c')
| -rw-r--r-- | sound/soc/sh/rcar/core.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 81a6bdb6848c..f990b4cb7192 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -191,6 +191,34 @@ int rsnd_io_is_working(struct rsnd_dai_stream *io) return !!io->substream; } +int rsnd_get_slot_rdai(struct rsnd_dai *rdai) +{ + return rdai->slots; +} + +int rsnd_get_slot_runtime(struct rsnd_dai_stream *io) +{ + struct rsnd_dai *rdai = rsnd_io_to_rdai(io); + struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); + int chan = rsnd_get_slot_rdai(rdai); + + if (runtime->channels < chan) + chan = runtime->channels; + + return chan; +} + +int rsnd_get_slot_extend(struct rsnd_dai_stream *io) +{ + int chan = rsnd_get_slot_runtime(io); + + /* TDM Extend Mode needs 8ch */ + if (chan == 6) + chan = 8; + + return chan; +} + /* * ADINR function */ @@ -611,6 +639,7 @@ static int rsnd_dai_probe(struct rsnd_priv *priv) rdai->playback.rdai = rdai; rdai->capture.rdai = rdai; + rdai->slots = 2; /* default */ #define mod_parse(name) \ node = rsnd_##name##_of_node(priv); \ |