[PATCH 3/3] ASoC: rsnd: control kctrl items acceptance anytime/runtime

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From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>

Current SRC/DVC/CTU adds kctrl for each device, but
some of them shouldn't set *before* playback/capture.
This patch control it more clearly

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@xxxxxxxxxxx>
---
 sound/soc/sh/rcar/core.c | 17 +++++++++++++++++
 sound/soc/sh/rcar/ctu.c  |  6 ++++++
 sound/soc/sh/rcar/dvc.c  |  5 +++++
 sound/soc/sh/rcar/rsnd.h | 16 ++++++++++------
 sound/soc/sh/rcar/src.c  |  2 ++
 5 files changed, 40 insertions(+), 6 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 6e3e7f0..8b0a16a 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -1033,6 +1033,9 @@ static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
 	struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
 	int i, change = 0;
 
+	if (!cfg->accept(cfg->io))
+		return 0;
+
 	for (i = 0; i < cfg->size; i++) {
 		if (cfg->texts) {
 			change |= (uc->value.enumerated.item[i] != cfg->val[i]);
@@ -1049,6 +1052,18 @@ static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
 	return change;
 }
 
+int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
+{
+	return 1;
+}
+
+int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
+{
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+
+	return !!runtime;
+}
+
 struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
 {
 	cfg->cfg.val = cfg->val;
@@ -1067,6 +1082,7 @@ int rsnd_kctrl_new(struct rsnd_mod *mod,
 		   struct rsnd_dai_stream *io,
 		   struct snd_soc_pcm_runtime *rtd,
 		   const unsigned char *name,
+		   int (*accept)(struct rsnd_dai_stream *io),
 		   void (*update)(struct rsnd_dai_stream *io,
 				  struct rsnd_mod *mod),
 		   struct rsnd_kctrl_cfg *cfg,
@@ -1101,6 +1117,7 @@ int rsnd_kctrl_new(struct rsnd_mod *mod,
 	cfg->texts	= texts;
 	cfg->max	= max;
 	cfg->size	= size;
+	cfg->accept	= accept;
 	cfg->update	= update;
 	cfg->card	= card;
 	cfg->kctrl	= kctrl;
diff --git a/sound/soc/sh/rcar/ctu.c b/sound/soc/sh/rcar/ctu.c
index 9dcc1f9..4ba8f2f 100644
--- a/sound/soc/sh/rcar/ctu.c
+++ b/sound/soc/sh/rcar/ctu.c
@@ -279,12 +279,14 @@ static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
 
 	/* CTU Pass */
 	ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU Pass",
+			       rsnd_kctrl_accept_anytime,
 			       NULL,
 			       &ctu->pass, RSND_MAX_CHANNELS,
 			       0xC);
 
 	/* ROW0 */
 	ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV0",
+			       rsnd_kctrl_accept_anytime,
 			       NULL,
 			       &ctu->sv0, RSND_MAX_CHANNELS,
 			       0x00FFFFFF);
@@ -293,6 +295,7 @@ static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
 
 	/* ROW1 */
 	ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV1",
+			       rsnd_kctrl_accept_anytime,
 			       NULL,
 			       &ctu->sv1, RSND_MAX_CHANNELS,
 			       0x00FFFFFF);
@@ -301,6 +304,7 @@ static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
 
 	/* ROW2 */
 	ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV2",
+			       rsnd_kctrl_accept_anytime,
 			       NULL,
 			       &ctu->sv2, RSND_MAX_CHANNELS,
 			       0x00FFFFFF);
@@ -309,6 +313,7 @@ static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
 
 	/* ROW3 */
 	ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV3",
+			       rsnd_kctrl_accept_anytime,
 			       NULL,
 			       &ctu->sv3, RSND_MAX_CHANNELS,
 			       0x00FFFFFF);
@@ -317,6 +322,7 @@ static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
 
 	/* Reset */
 	ret = rsnd_kctrl_new_s(mod, io, rtd, "CTU Reset",
+			       rsnd_kctrl_accept_anytime,
 			       rsnd_ctu_value_reset,
 			       &ctu->reset, 1);
 
diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c
index 463de83..75af6e7 100644
--- a/sound/soc/sh/rcar/dvc.c
+++ b/sound/soc/sh/rcar/dvc.c
@@ -257,6 +257,7 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 	ret = rsnd_kctrl_new_m(mod, io, rtd,
 			is_play ?
 			"DVC Out Playback Volume" : "DVC In Capture Volume",
+			rsnd_kctrl_accept_anytime,
 			rsnd_dvc_volume_update,
 			&dvc->volume, slots,
 			0x00800000 - 1);
@@ -267,6 +268,7 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 	ret = rsnd_kctrl_new_m(mod, io, rtd,
 			is_play ?
 			"DVC Out Mute Switch" : "DVC In Mute Switch",
+			rsnd_kctrl_accept_anytime,
 			rsnd_dvc_volume_update,
 			&dvc->mute,  slots,
 			1);
@@ -277,6 +279,7 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 	ret = rsnd_kctrl_new_s(mod, io, rtd,
 			is_play ?
 			"DVC Out Ramp Switch" : "DVC In Ramp Switch",
+			rsnd_kctrl_accept_anytime,
 			rsnd_dvc_volume_update,
 			&dvc->ren, 1);
 	if (ret < 0)
@@ -285,6 +288,7 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 	ret = rsnd_kctrl_new_e(mod, io, rtd,
 			is_play ?
 			"DVC Out Ramp Up Rate" : "DVC In Ramp Up Rate",
+			rsnd_kctrl_accept_anytime,
 			rsnd_dvc_volume_update,
 			&dvc->rup,
 			dvc_ramp_rate);
@@ -294,6 +298,7 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 	ret = rsnd_kctrl_new_e(mod, io, rtd,
 			is_play ?
 			"DVC Out Ramp Down Rate" : "DVC In Ramp Down Rate",
+			rsnd_kctrl_accept_anytime,
 			rsnd_dvc_volume_update,
 			&dvc->rdown,
 			dvc_ramp_rate);
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index c0de9d4..fc6b46b 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -596,6 +596,7 @@ struct rsnd_kctrl_cfg {
 	unsigned int size;
 	u32 *val;
 	const char * const *texts;
+	int (*accept)(struct rsnd_dai_stream *io);
 	void (*update)(struct rsnd_dai_stream *io, struct rsnd_mod *mod);
 	struct rsnd_dai_stream *io;
 	struct snd_card *card;
@@ -613,12 +614,15 @@ struct rsnd_kctrl_cfg_s {
 	u32 val;
 };
 
+int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io);
+int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io);
 struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg);
 struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg);
 int rsnd_kctrl_new(struct rsnd_mod *mod,
 		   struct rsnd_dai_stream *io,
 		   struct snd_soc_pcm_runtime *rtd,
 		   const unsigned char *name,
+		   int (*accept)(struct rsnd_dai_stream *io),
 		   void (*update)(struct rsnd_dai_stream *io,
 				  struct rsnd_mod *mod),
 		   struct rsnd_kctrl_cfg *cfg,
@@ -626,16 +630,16 @@ int rsnd_kctrl_new(struct rsnd_mod *mod,
 		   int size,
 		   u32 max);
 
-#define rsnd_kctrl_new_m(mod, io, rtd, name, update, cfg, size, max) \
-	rsnd_kctrl_new(mod, io, rtd, name, update, rsnd_kctrl_init_m(cfg), \
+#define rsnd_kctrl_new_m(mod, io, rtd, name, accept, update, cfg, size, max) \
+	rsnd_kctrl_new(mod, io, rtd, name, accept, update, rsnd_kctrl_init_m(cfg), \
 		       NULL, size, max)
 
-#define rsnd_kctrl_new_s(mod, io, rtd, name, update, cfg, max)	\
-	rsnd_kctrl_new(mod, io, rtd, name, update, rsnd_kctrl_init_s(cfg), \
+#define rsnd_kctrl_new_s(mod, io, rtd, name, accept, update, cfg, max)	\
+	rsnd_kctrl_new(mod, io, rtd, name, accept, update, rsnd_kctrl_init_s(cfg), \
 		       NULL, 1, max)
 
-#define rsnd_kctrl_new_e(mod, io, rtd, name, update, cfg, texts)	\
-	rsnd_kctrl_new(mod, io, rtd, name, update, rsnd_kctrl_init_s(cfg), \
+#define rsnd_kctrl_new_e(mod, io, rtd, name, accept, update, cfg, texts)	\
+	rsnd_kctrl_new(mod, io, rtd, name, accept, update, rsnd_kctrl_init_s(cfg), \
 		       texts, 1, ARRAY_SIZE(texts))
 
 /*
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index 20b5b2e..8be0415 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -507,6 +507,7 @@ static int rsnd_src_pcm_new(struct rsnd_mod *mod,
 			       rsnd_io_is_play(io) ?
 			       "SRC Out Rate Switch" :
 			       "SRC In Rate Switch",
+			       rsnd_kctrl_accept_anytime,
 			       rsnd_src_set_convert_rate,
 			       &src->sen, 1);
 	if (ret < 0)
@@ -516,6 +517,7 @@ static int rsnd_src_pcm_new(struct rsnd_mod *mod,
 			       rsnd_io_is_play(io) ?
 			       "SRC Out Rate" :
 			       "SRC In Rate",
+			       rsnd_kctrl_accept_runtime,
 			       rsnd_src_set_convert_rate,
 			       &src->sync, 192000);
 
-- 
1.9.1




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