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-rw-r--r--include/sound/soc-topology.h11
-rw-r--r--sound/soc/soc-topology.c42
2 files changed, 50 insertions, 3 deletions
diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index a6541a1bc709..ea387ed8f98b 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 c4a58d7337b5..5690b7e7172e 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);
}