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topology: Parse and build private data of physical links

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Users can define private data for physical links by C API or text conf
file. Private data pointer is added to C API template for physical links.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Mengdong Lin 2016-11-06 13:14:25 +08:00 committed by Takashi Iwai
parent 2894c31816
commit c33b3a0ea2
2 changed files with 27 additions and 1 deletions
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1
include/topology.h
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@ -996,6 +996,7 @@ struct snd_tplg_link_template {
unsigned int flag_mask; /* bitmask of flags to configure */
unsigned int flags; /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
struct snd_soc_tplg_private *priv; /*!< private data */
};
/** \struct snd_tplg_obj_template

27
src/topology/pcm.c
View File

@ -162,7 +162,7 @@ static int build_link(snd_tplg_t *tplg, struct tplg_elem *elem)
if (err < 0)
return err;
/* hw configs */
/* hw configs & private data */
base = &elem->ref_list;
list_for_each(pos, base) {
@ -185,6 +185,12 @@ static int build_link(snd_tplg_t *tplg, struct tplg_elem *elem)
num_hw_configs++;
break;
case SND_TPLG_TYPE_DATA: /* merge private data */
err = tplg_copy_data(tplg, elem, ref);
if (err < 0)
return err;
break;
default:
break;
}
@ -1043,5 +1049,24 @@ int tplg_add_link_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t)
/* flags */
link->flag_mask = link_tpl->flag_mask;
link->flags = link_tpl->flags;
/* private data */
if (link_tpl->priv != NULL && link_tpl->priv->size) {
_link = realloc(link,
elem->size + link_tpl->priv->size);
if (!_link) {
tplg_elem_free(elem);
return -ENOMEM;
}
link = _link;
elem->link = link;
elem->size += link_tpl->priv->size;
memcpy(link->priv.data, link_tpl->priv->data,
link_tpl->priv->size);
link->priv.size = link_tpl->priv->size;
}
return 0;
}