[PATCH v2 0/3] ASoC: topology: update kcontrol ops binding & support TLV bytes controls

[PATCH v2 0/3] ASoC: topology: update kcontrol ops binding & support TLV bytes controls

[mengdong.lin]

From: Mengdong Lin <mengdong.lin@intel.com>

History:
v2:
  - let vendor specific kcontrol handlers override standard ones.
  - Merge handler binding for TLV bytes controls into
    soc_tplg_kcontrol_bind_io()

Mengdong Lin (3):
  ASoC: topology: Bind vendor specific kcontrol handlers before standard
    ones
  ASoC: topology: Reduce arguments of soc_tplg_kcontrol_bind_io()
  ASoC: topology: Add support for TLV bytes controls

 include/sound/soc-topology.h |  13 +++++-
 sound/soc/soc-topology.c     | 101 ++++++++++++++++++++++++++++---------------
 2 files changed, 79 insertions(+), 35 deletions(-)

-- 
1.9.1

[PATCH v2 1/3] ASoC: topology: Bind vendor specific kcontrol handlers before standard ones

[mengdong.lin]

From: Mengdong Lin <mengdong.lin@intel.com>

Vendor specific handlers should override standard handlers. So we can
handle things in the order from specific to generic.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>

diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index 865a141..a6541a1 100644
--- a/include/sound/soc-topology.h
+++ b/include/sound/soc-topology.h
@@ -136,7 +136,7 @@ struct snd_soc_tplg_ops {
 	int (*manifest)(struct snd_soc_component *,
 		struct snd_soc_tplg_manifest *);
 
-	/* bespoke kcontrol handlers available for binding */
+	/* vendor specific kcontrol handlers available for binding */
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
 	int io_ops_count;
 };
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 04764fd..707c360 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -66,7 +66,7 @@ struct soc_tplg {
 	u32 index;	/* current block index */
 	u32 req_index;	/* required index, only loaded/free matching blocks */
 
-	/* kcontrol operations */
+	/* vendor specific kcontrol operations */
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
 	int io_ops_count;
 
@@ -513,22 +513,7 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 {
 	int i;
 
-	/* try and map standard kcontrols handler first */
-	for (i = 0; i < num_ops; i++) {
-
-		if (ops[i].id == hdr->ops.put)
-			k->put = ops[i].put;
-		if (ops[i].id == hdr->ops.get)
-			k->get = ops[i].get;
-		if (ops[i].id == hdr->ops.info)
-			k->info = ops[i].info;
-	}
-
-	/* standard handlers found ? */
-	if (k->put && k->get && k->info)
-		return 0;
-
-	/* none found so try bespoke handlers */
+	/* try and map vendor specific kcontrol handlers first */
 	for (i = 0; i < num_bops; i++) {
 
 		if (k->put == NULL && bops[i].id == hdr->ops.put)
@@ -539,7 +524,22 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 			k->info = bops[i].info;
 	}
 
-	/* bespoke handlers found ? */
+	/* vendor specific handlers found ? */
+	if (k->put && k->get && k->info)
+		return 0;
+
+	/* none found so try standard kcontrol handlers */
+	for (i = 0; i < num_ops; i++) {
+
+		if (k->put == NULL && ops[i].id == hdr->ops.put)
+			k->put = ops[i].put;
+		if (k->get == NULL && ops[i].id == hdr->ops.get)
+			k->get = ops[i].get;
+		if (k->info == NULL && ops[i].id == hdr->ops.info)
+			k->info = ops[i].info;
+	}
+
+	/* standard handlers found ? */
 	if (k->put && k->get && k->info)
 		return 0;
 
-- 
1.9.1

[PATCH v2 2/3] ASoC: topology: Reduce arguments of soc_tplg_kcontrol_bind_io()

[mengdong.lin]

From: Mengdong Lin <mengdong.lin@intel.com>

Add the pointer of struct soc_tplg as one argument, so no need to
pass standard/vendor specific kcontrol handlers and their count.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 707c360..9ec97f4 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -508,20 +508,22 @@ static void remove_pcm_dai(struct snd_soc_component *comp,
 /* bind a kcontrol to it's IO handlers */
 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 	struct snd_kcontrol_new *k,
-	const struct snd_soc_tplg_kcontrol_ops *ops, int num_ops,
-	const struct snd_soc_tplg_kcontrol_ops *bops, int num_bops)
+	const struct soc_tplg *tplg)
 {
-	int i;
+	const struct snd_soc_tplg_kcontrol_ops *ops;
+	int num_ops, i;
 
 	/* try and map vendor specific kcontrol handlers first */
-	for (i = 0; i < num_bops; i++) {
-
-		if (k->put == NULL && bops[i].id == hdr->ops.put)
-			k->put = bops[i].put;
-		if (k->get == NULL && bops[i].id == hdr->ops.get)
-			k->get = bops[i].get;
-		if (k->info == NULL && bops[i].id == hdr->ops.info)
-			k->info = bops[i].info;
+	ops = tplg->io_ops;
+	num_ops = tplg->io_ops_count;
+	for (i = 0; i < num_ops; i++) {
+
+		if (k->put == NULL && ops[i].id == hdr->ops.put)
+			k->put = ops[i].put;
+		if (k->get == NULL && ops[i].id == hdr->ops.get)
+			k->get = ops[i].get;
+		if (k->info == NULL && ops[i].id == hdr->ops.info)
+			k->info = ops[i].info;
 	}
 
 	/* vendor specific handlers found ? */
@@ -529,6 +531,8 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 		return 0;
 
 	/* none found so try standard kcontrol handlers */
+	ops = io_ops;
+	num_ops = ARRAY_SIZE(io_ops);
 	for (i = 0; i < num_ops; i++) {
 
 		if (k->put == NULL && ops[i].id == hdr->ops.put)
@@ -682,8 +686,7 @@ static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 		INIT_LIST_HEAD(&sbe->dobj.list);
 
 		/* map io handlers */
-		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, io_ops,
-			ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
 		if (err) {
 			soc_control_err(tplg, &be->hdr, be->hdr.name);
 			kfree(sbe);
@@ -777,8 +780,7 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 		INIT_LIST_HEAD(&sm->dobj.list);
 
 		/* map io handlers */
-		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, io_ops,
-			ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
 		if (err) {
 			soc_control_err(tplg, &mc->hdr, mc->hdr.name);
 			kfree(sm);
@@ -950,8 +952,7 @@ static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
 		}
 
 		/* map io handlers */
-		err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, io_ops,
-			ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
 		if (err) {
 			soc_control_err(tplg, &ec->hdr, ec->hdr.name);
 			kfree(se);
@@ -1137,8 +1138,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
 		INIT_LIST_HEAD(&sm->dobj.list);
 
 		/* map io handlers */
-		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], io_ops,
-			ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
 		if (err) {
 			soc_control_err(tplg, &mc->hdr, mc->hdr.name);
 			kfree(sm);
@@ -1235,8 +1235,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 	}
 
 	/* map io handlers */
-	err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, io_ops,
-		ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+	err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg);
 	if (err) {
 		soc_control_err(tplg, &ec->hdr, ec->hdr.name);
 		goto err_se;
@@ -1306,9 +1305,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
 		INIT_LIST_HEAD(&sbe->dobj.list);
 
 		/* map standard io handlers and check for external handlers */
-		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], io_ops,
-				ARRAY_SIZE(io_ops), tplg->io_ops,
-				tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
 		if (err) {
 			soc_control_err(tplg, &be->hdr, be->hdr.name);
 			kfree(sbe);
-- 
1.9.1

[PATCH v2 3/3] ASoC: topology: Add support for TLV bytes controls

[mengdong.lin]

From: Mengdong Lin <mengdong.lin@intel.com>

Allow vendor drivers to define bespoke bytes ext handlers and IDs for
TLV bytes controls. And the topology core will bind these handlers by
matching IDs defined by the vendor driver and user space topology
data file.

And TLV callback binding is moved to soc_tplg_kcontrol_bind_io(). This
function process all handler binding now.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>

diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index a6541a1..ea387ed 100644
--- a/include/sound/soc-topology.h
+++ b/include/sound/soc-topology.h
@@ -89,6 +89,13 @@ struct snd_soc_tplg_kcontrol_ops {
 		struct snd_ctl_elem_info *uinfo);
 };
 
+/* Bytes ext operations, for TLV byte controls */
+struct snd_soc_tplg_bytes_ext_ops {
+	u32 id;
+	int (*get)(unsigned int __user *bytes, unsigned int size);
+	int (*put)(const unsigned int __user *bytes, unsigned int size);
+};
+
 /*
  * DAPM widget event handlers - used to map handlers onto widgets.
  */
@@ -139,6 +146,10 @@ struct snd_soc_tplg_ops {
 	/* vendor specific kcontrol handlers available for binding */
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
 	int io_ops_count;
+
+	/* vendor specific bytes ext handlers available for binding */
+	const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
+	int bytes_ext_ops_count;
 };
 
 /* gets a pointer to data from the firmware block header */
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 9ec97f4..69d01cd 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -70,6 +70,10 @@ struct soc_tplg {
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
 	int io_ops_count;
 
+	/* vendor specific bytes ext handlers, for TLV bytes controls */
+	const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
+	int bytes_ext_ops_count;
+
 	/* optional fw loading callbacks to component drivers */
 	struct snd_soc_tplg_ops *ops;
 };
@@ -511,8 +515,40 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 	const struct soc_tplg *tplg)
 {
 	const struct snd_soc_tplg_kcontrol_ops *ops;
+	const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
 	int num_ops, i;
 
+	if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES
+		&& k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
+		&& k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
+		&& k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+		struct soc_bytes_ext *sbe;
+		struct snd_soc_tplg_bytes_control *be;
+
+		sbe = (struct soc_bytes_ext *)k->private_value;
+		be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
+
+		/* TLV bytes controls need standard kcontrol info handler,
+		 * TLV callback and extended put/get handlers.
+		 */
+		k->info = snd_soc_bytes_info;
+		k->tlv.c = snd_soc_bytes_tlv_callback;
+
+		ext_ops = tplg->bytes_ext_ops;
+		num_ops = tplg->bytes_ext_ops_count;
+		for (i = 0; i < num_ops; i++) {
+			if (!sbe->put && ext_ops[i].id == be->ext_ops.put)
+				sbe->put = ext_ops[i].put;
+			if (!sbe->get && ext_ops[i].id == be->ext_ops.get)
+				sbe->get = ext_ops[i].get;
+		}
+
+		if (sbe->put && sbe->get)
+			return 0;
+		else
+			return -EINVAL;
+	}
+
 	/* try and map vendor specific kcontrol handlers first */
 	ops = tplg->io_ops;
 	num_ops = tplg->io_ops_count;
@@ -613,9 +649,7 @@ static int soc_tplg_create_tlv(struct soc_tplg *tplg,
 	if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
 		return 0;
 
-	if (tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
-		kc->tlv.c = snd_soc_bytes_tlv_callback;
-	} else {
+	if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
 		tplg_tlv = &tc->tlv;
 		switch (tplg_tlv->type) {
 		case SNDRV_CTL_TLVT_DB_SCALE:
@@ -1733,6 +1767,8 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp,
 	tplg.req_index = id;
 	tplg.io_ops = ops->io_ops;
 	tplg.io_ops_count = ops->io_ops_count;
+	tplg.bytes_ext_ops = ops->bytes_ext_ops;
+	tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
 
 	return soc_tplg_load(&tplg);
 }
-- 
1.9.1

Applied "ASoC: topology: Reduce arguments of soc_tplg_kcontrol_bind_io()" to the asoc tree

[Mark Brown]

The patch

   ASoC: topology: Reduce arguments of soc_tplg_kcontrol_bind_io()

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 2b5cdb9156f76162d5302e2847f84a79de8a3ad1 Mon Sep 17 00:00:00 2001
From: Mengdong Lin <mengdong.lin@intel.com>
Date: Tue, 18 Aug 2015 18:12:01 +0800
Subject: [PATCH] ASoC: topology: Reduce arguments of
 soc_tplg_kcontrol_bind_io()

Add the pointer of struct soc_tplg as one argument, so no need to
pass standard/vendor specific kcontrol handlers and their count.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/soc-topology.c | 45 +++++++++++++++++++++------------------------
 1 file changed, 21 insertions(+), 24 deletions(-)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index ca551b9..c4a58d7 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -508,20 +508,22 @@ static void remove_pcm_dai(struct snd_soc_component *comp,
 /* bind a kcontrol to it's IO handlers */
 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 	struct snd_kcontrol_new *k,
-	const struct snd_soc_tplg_kcontrol_ops *ops, int num_ops,
-	const struct snd_soc_tplg_kcontrol_ops *bops, int num_bops)
+	const struct soc_tplg *tplg)
 {
-	int i;
+	const struct snd_soc_tplg_kcontrol_ops *ops;
+	int num_ops, i;
 
 	/* try and map vendor specific kcontrol handlers first */
-	for (i = 0; i < num_bops; i++) {
-
-		if (k->put == NULL && bops[i].id == hdr->ops.put)
-			k->put = bops[i].put;
-		if (k->get == NULL && bops[i].id == hdr->ops.get)
-			k->get = bops[i].get;
-		if (k->info == NULL && bops[i].id == hdr->ops.info)
-			k->info = bops[i].info;
+	ops = tplg->io_ops;
+	num_ops = tplg->io_ops_count;
+	for (i = 0; i < num_ops; i++) {
+
+		if (k->put == NULL && ops[i].id == hdr->ops.put)
+			k->put = ops[i].put;
+		if (k->get == NULL && ops[i].id == hdr->ops.get)
+			k->get = ops[i].get;
+		if (k->info == NULL && ops[i].id == hdr->ops.info)
+			k->info = ops[i].info;
 	}
 
 	/* vendor specific handlers found ? */
@@ -529,6 +531,8 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 		return 0;
 
 	/* none found so try standard kcontrol handlers */
+	ops = io_ops;
+	num_ops = ARRAY_SIZE(io_ops);
 	for (i = 0; i < num_ops; i++) {
 
 		if (k->put == NULL && ops[i].id == hdr->ops.put)
@@ -682,8 +686,7 @@ static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 		INIT_LIST_HEAD(&sbe->dobj.list);
 
 		/* map io handlers */
-		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, io_ops,
-			ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
 		if (err) {
 			soc_control_err(tplg, &be->hdr, be->hdr.name);
 			kfree(sbe);
@@ -777,8 +780,7 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 		INIT_LIST_HEAD(&sm->dobj.list);
 
 		/* map io handlers */
-		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, io_ops,
-			ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
 		if (err) {
 			soc_control_err(tplg, &mc->hdr, mc->hdr.name);
 			kfree(sm);
@@ -950,8 +952,7 @@ static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
 		}
 
 		/* map io handlers */
-		err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, io_ops,
-			ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
 		if (err) {
 			soc_control_err(tplg, &ec->hdr, ec->hdr.name);
 			kfree(se);
@@ -1137,8 +1138,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
 		INIT_LIST_HEAD(&sm->dobj.list);
 
 		/* map io handlers */
-		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], io_ops,
-			ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
 		if (err) {
 			soc_control_err(tplg, &mc->hdr, mc->hdr.name);
 			kfree(sm);
@@ -1235,8 +1235,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 	}
 
 	/* map io handlers */
-	err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, io_ops,
-		ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count);
+	err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg);
 	if (err) {
 		soc_control_err(tplg, &ec->hdr, ec->hdr.name);
 		goto err_se;
@@ -1306,9 +1305,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
 		INIT_LIST_HEAD(&sbe->dobj.list);
 
 		/* map standard io handlers and check for external handlers */
-		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], io_ops,
-				ARRAY_SIZE(io_ops), tplg->io_ops,
-				tplg->io_ops_count);
+		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
 		if (err) {
 			soc_control_err(tplg, &be->hdr, be->hdr.name);
 			kfree(sbe);
-- 
2.5.0

Applied "ASoC: topology: Add support for TLV bytes controls" to the asoc tree

[Mark Brown]

The patch

   ASoC: topology: Add support for TLV bytes controls

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 1a3232d2f61d2853a848464b7bde2d54960c58bb Mon Sep 17 00:00:00 2001
From: Mengdong Lin <mengdong.lin@intel.com>
Date: Tue, 18 Aug 2015 18:12:20 +0800
Subject: [PATCH] ASoC: topology: Add support for TLV bytes controls

Allow vendor drivers to define bespoke bytes ext handlers and IDs for
TLV bytes controls. And the topology core will bind these handlers by
matching IDs defined by the vendor driver and user space topology
data file.

And TLV callback binding is moved to soc_tplg_kcontrol_bind_io(). This
function process all handler binding now.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/soc-topology.h | 11 +++++++++++
 sound/soc/soc-topology.c     | 42 +++++++++++++++++++++++++++++++++++++++---
 2 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index a6541a1..ea387ed 100644
--- a/include/sound/soc-topology.h
+++ b/include/sound/soc-topology.h
@@ -89,6 +89,13 @@ struct snd_soc_tplg_kcontrol_ops {
 		struct snd_ctl_elem_info *uinfo);
 };
 
+/* Bytes ext operations, for TLV byte controls */
+struct snd_soc_tplg_bytes_ext_ops {
+	u32 id;
+	int (*get)(unsigned int __user *bytes, unsigned int size);
+	int (*put)(const unsigned int __user *bytes, unsigned int size);
+};
+
 /*
  * DAPM widget event handlers - used to map handlers onto widgets.
  */
@@ -139,6 +146,10 @@ struct snd_soc_tplg_ops {
 	/* vendor specific kcontrol handlers available for binding */
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
 	int io_ops_count;
+
+	/* vendor specific bytes ext handlers available for binding */
+	const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
+	int bytes_ext_ops_count;
 };
 
 /* gets a pointer to data from the firmware block header */
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index c4a58d7..5690b7e 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -70,6 +70,10 @@ struct soc_tplg {
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
 	int io_ops_count;
 
+	/* vendor specific bytes ext handlers, for TLV bytes controls */
+	const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
+	int bytes_ext_ops_count;
+
 	/* optional fw loading callbacks to component drivers */
 	struct snd_soc_tplg_ops *ops;
 };
@@ -511,8 +515,40 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 	const struct soc_tplg *tplg)
 {
 	const struct snd_soc_tplg_kcontrol_ops *ops;
+	const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
 	int num_ops, i;
 
+	if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES
+		&& k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
+		&& k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
+		&& k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+		struct soc_bytes_ext *sbe;
+		struct snd_soc_tplg_bytes_control *be;
+
+		sbe = (struct soc_bytes_ext *)k->private_value;
+		be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
+
+		/* TLV bytes controls need standard kcontrol info handler,
+		 * TLV callback and extended put/get handlers.
+		 */
+		k->info = snd_soc_bytes_info;
+		k->tlv.c = snd_soc_bytes_tlv_callback;
+
+		ext_ops = tplg->bytes_ext_ops;
+		num_ops = tplg->bytes_ext_ops_count;
+		for (i = 0; i < num_ops; i++) {
+			if (!sbe->put && ext_ops[i].id == be->ext_ops.put)
+				sbe->put = ext_ops[i].put;
+			if (!sbe->get && ext_ops[i].id == be->ext_ops.get)
+				sbe->get = ext_ops[i].get;
+		}
+
+		if (sbe->put && sbe->get)
+			return 0;
+		else
+			return -EINVAL;
+	}
+
 	/* try and map vendor specific kcontrol handlers first */
 	ops = tplg->io_ops;
 	num_ops = tplg->io_ops_count;
@@ -613,9 +649,7 @@ static int soc_tplg_create_tlv(struct soc_tplg *tplg,
 	if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
 		return 0;
 
-	if (tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
-		kc->tlv.c = snd_soc_bytes_tlv_callback;
-	} else {
+	if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
 		tplg_tlv = &tc->tlv;
 		switch (tplg_tlv->type) {
 		case SNDRV_CTL_TLVT_DB_SCALE:
@@ -1733,6 +1767,8 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp,
 	tplg.req_index = id;
 	tplg.io_ops = ops->io_ops;
 	tplg.io_ops_count = ops->io_ops_count;
+	tplg.bytes_ext_ops = ops->bytes_ext_ops;
+	tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
 
 	return soc_tplg_load(&tplg);
 }
-- 
2.5.0

Applied "ASoC: topology: Bind vendor specific kcontrol handlers before standard ones" to the asoc tree

[Mark Brown]

The patch

   ASoC: topology: Bind vendor specific kcontrol handlers before standard ones

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 88a17d8fb7c4a156ec13e6668b46dbbedf670ff7 Mon Sep 17 00:00:00 2001
From: Mengdong Lin <mengdong.lin@intel.com>
Date: Tue, 18 Aug 2015 18:11:51 +0800
Subject: [PATCH] ASoC: topology: Bind vendor specific kcontrol handlers before
 standard ones

Vendor specific handlers should override standard handlers. So we can
handle things in the order from specific to generic.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/soc-topology.h |  2 +-
 sound/soc/soc-topology.c     | 36 ++++++++++++++++++------------------
 2 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index 865a141..a6541a1 100644
--- a/include/sound/soc-topology.h
+++ b/include/sound/soc-topology.h
@@ -136,7 +136,7 @@ struct snd_soc_tplg_ops {
 	int (*manifest)(struct snd_soc_component *,
 		struct snd_soc_tplg_manifest *);
 
-	/* bespoke kcontrol handlers available for binding */
+	/* vendor specific kcontrol handlers available for binding */
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
 	int io_ops_count;
 };
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 73e959c..ca551b9 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -66,7 +66,7 @@ struct soc_tplg {
 	u32 index;	/* current block index */
 	u32 req_index;	/* required index, only loaded/free matching blocks */
 
-	/* kcontrol operations */
+	/* vendor specific kcontrol operations */
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
 	int io_ops_count;
 
@@ -513,22 +513,7 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 {
 	int i;
 
-	/* try and map standard kcontrols handler first */
-	for (i = 0; i < num_ops; i++) {
-
-		if (ops[i].id == hdr->ops.put)
-			k->put = ops[i].put;
-		if (ops[i].id == hdr->ops.get)
-			k->get = ops[i].get;
-		if (ops[i].id == hdr->ops.info)
-			k->info = ops[i].info;
-	}
-
-	/* standard handlers found ? */
-	if (k->put && k->get && k->info)
-		return 0;
-
-	/* none found so try bespoke handlers */
+	/* try and map vendor specific kcontrol handlers first */
 	for (i = 0; i < num_bops; i++) {
 
 		if (k->put == NULL && bops[i].id == hdr->ops.put)
@@ -539,7 +524,22 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 			k->info = bops[i].info;
 	}
 
-	/* bespoke handlers found ? */
+	/* vendor specific handlers found ? */
+	if (k->put && k->get && k->info)
+		return 0;
+
+	/* none found so try standard kcontrol handlers */
+	for (i = 0; i < num_ops; i++) {
+
+		if (k->put == NULL && ops[i].id == hdr->ops.put)
+			k->put = ops[i].put;
+		if (k->get == NULL && ops[i].id == hdr->ops.get)
+			k->get = ops[i].get;
+		if (k->info == NULL && ops[i].id == hdr->ops.info)
+			k->info = ops[i].info;
+	}
+
+	/* standard handlers found ? */
 	if (k->put && k->get && k->info)
 		return 0;
 
-- 
2.5.0