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ASoC: rsnd: SRC TIMSEL support for Capture

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SRC has Sync/Async mode, and it can't use Sync mode when Capture
with CMD. In Async mode, it needs to care about in/out SRC rate
for settings, but current driver supporting Playback case only.
This patch supports Capture case.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto
2016-03-07 05:09:14 +00:00
committed by Mark Brown
parent cbf1494fbc
commit 0102eed57c
3 changed files with 128 additions and 110 deletions
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26
sound/soc/sh/rcar/src.c
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@@ -189,7 +189,7 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
struct device *dev = rsnd_priv_to_dev(priv);
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
u32 convert_rate = rsnd_src_convert_rate(io, mod);
u32 fin, fout;
u32 ifscr, fsrate, adinr;
u32 cr, route;
u32 bsdsr, bsisr;
@@ -198,13 +198,16 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
if (!runtime)
return;
fin = rsnd_src_get_in_rate(priv, io);
fout = rsnd_src_get_out_rate(priv, io);
/* 6 - 1/6 are very enough ratio for SRC_BSDSR */
if (!convert_rate)
if (fin == fout)
ratio = 0;
else if (convert_rate > runtime->rate)
ratio = 100 * convert_rate / runtime->rate;
else if (fin > fout)
ratio = 100 * fin / fout;
else
ratio = 100 * runtime->rate / convert_rate;
ratio = 100 * fout / fin;
if (ratio > 600) {
dev_err(dev, "FSO/FSI ratio error\n");
@@ -222,9 +225,9 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
*/
ifscr = 0;
fsrate = 0;
if (convert_rate) {
if (fin != fout) {
ifscr = 1;
fsrate = 0x0400000 / convert_rate * runtime->rate;
fsrate = 0x0400000 / fout * fin;
}
/*
@@ -232,7 +235,7 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
*/
cr = 0x00011110;
route = 0x0;
if (convert_rate) {
if (fin != fout) {
route = 0x1;
if (rsnd_src_sync_is_enabled(mod)) {
@@ -274,12 +277,7 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
rsnd_mod_write(mod, SRC_O_BUSIF_MODE, 1);
rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
if (convert_rate)
rsnd_adg_set_convert_clk_gen2(mod, io,
runtime->rate,
convert_rate);
else
rsnd_adg_set_convert_timing_gen2(mod, io);
rsnd_adg_set_src_timesel_gen2(mod, io, fin, fout);
}
static int rsnd_src_irq(struct rsnd_mod *mod,