From: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Add functions to add properties to entities, pads and other
properties. This can be extended to include interfaces and links
in the future when needed.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
---
drivers/media/media-entity.c | 64 +++++++++
include/media/media-entity.h | 264 +++++++++++++++++++++++++++++++++++
2 files changed, 328 insertions(+)
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 62c4d5b4d33f..cdb35bc8e9a0 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -251,6 +251,70 @@ int media_entity_pads_init(struct media_entity *entity, u16 num_pads,
}
EXPORT_SYMBOL_GPL(media_entity_pads_init);
+static struct media_prop *media_create_prop(struct media_gobj *owner, u32 type,
+ const char *name, const void *ptr,
+ u32 payload_size)
+{
+ struct media_prop *prop = kzalloc(sizeof(*prop) + payload_size,
+ GFP_KERNEL);
+
+ if (!prop)
+ return ERR_PTR(-ENOMEM);
+ prop->type = type;
+ strscpy(prop->name, name, sizeof(prop->name));
+ if (owner->mdev)
+ media_gobj_create(owner->mdev, MEDIA_GRAPH_PROP,
+ &prop->graph_obj);
+ prop->owner = owner;
+ prop->payload_size = payload_size;
+ if (payload_size && ptr)
+ memcpy(prop->payload, ptr, payload_size);
+ INIT_LIST_HEAD(&prop->props);
+ return prop;
+}
+
+struct media_prop *media_entity_add_prop(struct media_entity *ent, u32 type,
+ const char *name, const void *ptr,
+ u32 payload_size)
+{
+ struct media_prop *prop;
+
+ if (!ent->inited)
+ media_entity_init(ent);
+ prop = media_create_prop(&ent->graph_obj, type,
+ name, ptr, payload_size);
+ if (!IS_ERR(prop))
+ list_add_tail(&prop->list, &ent->props);
+ return prop;
+}
+EXPORT_SYMBOL_GPL(media_entity_add_prop);
+
+struct media_prop *media_pad_add_prop(struct media_pad *pad, u32 type,
+ const char *name, const void *ptr,
+ u32 payload_size)
+{
+ struct media_prop *prop = media_create_prop(&pad->graph_obj, type,
+ name, ptr, payload_size);
+
+ if (!IS_ERR(prop))
+ list_add_tail(&prop->list, &pad->props);
+ return prop;
+}
+EXPORT_SYMBOL_GPL(media_pad_add_prop);
+
+struct media_prop *media_prop_add_prop(struct media_prop *prop, u32 type,
+ const char *name, const void *ptr,
+ u32 payload_size)
+{
+ struct media_prop *subprop = media_create_prop(&prop->graph_obj, type,
+ name, ptr, payload_size);
+
+ if (!IS_ERR(subprop))
+ list_add_tail(&subprop->list, &prop->props);
+ return subprop;
+}
+EXPORT_SYMBOL_GPL(media_prop_add_prop);
+
/* -----------------------------------------------------------------------------
* Graph traversal
*/
diff --git a/include/media/media-entity.h b/include/media/media-entity.h
index 5d05ebf712d0..695acfd3fe9c 100644
--- a/include/media/media-entity.h
+++ b/include/media/media-entity.h
@@ -833,6 +833,270 @@ int media_create_pad_links(const struct media_device *mdev,
void __media_entity_remove_links(struct media_entity *entity);
+/**
+ * media_entity_add_prop() - Add property to entity
+ *
+ * @entity: entity where to add the property
+ * @type: property type
+ * @name: property name
+ * @ptr: property pointer to payload
+ * @payload_size: property payload size
+ *
+ * Returns the new property on success, or an error pointer on failure.
+ */
+struct media_prop *media_entity_add_prop(struct media_entity *ent, u32 type,
+ const char *name, const void *ptr,
+ u32 payload_size);
+
+/**
+ * media_pad_add_prop() - Add property to pad
+ *
+ * @pad: pad where to add the property
+ * @type: property type
+ * @name: property name
+ * @ptr: property pointer to payload
+ * @payload_size: property payload size
+ *
+ * Returns the new property on success, or an error pointer on failure.
+ */
+struct media_prop *media_pad_add_prop(struct media_pad *pad, u32 type,
+ const char *name, const void *ptr,
+ u32 payload_size);
+
+/**
+ * media_prop() - Add sub-property to property
+ *
+ * @prop: property where to add the sub-property
+ * @type: sub-property type
+ * @name: sub-property name
+ * @ptr: sub-property pointer to payload
+ * @payload_size: sub-property payload size
+ *
+ * Returns the new property on success, or an error pointer on failure.
+ */
+struct media_prop *media_prop_add_prop(struct media_prop *prop, u32 type,
+ const char *name, const void *ptr,
+ u32 payload_size);
+
+/**
+ * media_entity_add_prop_group() - Add group property to entity
+ *
+ * @entity: entity where to add the property
+ * @name: property name
+ *
+ * Returns the new property on success, or an error pointer on failure.
+ */
+static inline struct media_prop *
+media_entity_add_prop_group(struct media_entity *entity, const char *name)
+{
+ return media_entity_add_prop(entity, MEDIA_PROP_TYPE_GROUP,
+ name, NULL, 0);
+}
+
+/**
+ * media_entity_add_prop_u64() - Add u64 property to entity
+ *
+ * @entity: entity where to add the property
+ * @name: property name
+ * @val: property value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_entity_add_prop_u64(struct media_entity *entity,
+ const char *name, u64 val)
+{
+ struct media_prop *prop =
+ media_entity_add_prop(entity, MEDIA_PROP_TYPE_U64,
+ name, &val, sizeof(val));
+
+ return PTR_ERR_OR_ZERO(prop);
+}
+
+/**
+ * media_entity_add_prop_s64() - Add s64 property to entity
+ *
+ * @entity: entity where to add the property
+ * @name: property name
+ * @val: property value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_entity_add_prop_s64(struct media_entity *entity,
+ const char *name, s64 val)
+{
+ struct media_prop *prop =
+ media_entity_add_prop(entity, MEDIA_PROP_TYPE_S64,
+ name, &val, sizeof(val));
+
+ return PTR_ERR_OR_ZERO(prop);
+}
+
+/**
+ * media_entity_add_prop_string() - Add string property to entity
+ *
+ * @entity: entity where to add the property
+ * @name: property name
+ * @string: property string value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_entity_add_prop_string(struct media_entity *entity,
+ const char *name,
+ const char *string)
+{
+ struct media_prop *prop =
+ media_entity_add_prop(entity, MEDIA_PROP_TYPE_STRING,
+ name, string, strlen(string) + 1);
+
+ return PTR_ERR_OR_ZERO(prop);
+}
+
+/**
+ * media_pad_add_prop_group() - Add group property to pad
+ *
+ * @pad: pad where to add the property
+ * @name: property name
+ *
+ * Returns the new property on success, or an error pointer on failure.
+ */
+static inline struct media_prop *media_pad_add_prop_group(struct media_pad *pad,
+ const char *name)
+{
+ return media_pad_add_prop(pad, MEDIA_PROP_TYPE_GROUP,
+ name, NULL, 0);
+}
+
+/**
+ * media_pad_add_prop_u64() - Add u64 property to pad
+ *
+ * @pad: pad where to add the property
+ * @name: property name
+ * @val: property value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_pad_add_prop_u64(struct media_pad *pad,
+ const char *name, u64 val)
+{
+ struct media_prop *prop =
+ media_pad_add_prop(pad, MEDIA_PROP_TYPE_U64,
+ name, &val, sizeof(val));
+
+ return PTR_ERR_OR_ZERO(prop);
+}
+
+/**
+ * media_pad_add_prop_s64() - Add s64 property to pad
+ *
+ * @pad: pad where to add the property
+ * @name: property name
+ * @val: property value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_pad_add_prop_s64(struct media_pad *pad,
+ const char *name, s64 val)
+{
+ struct media_prop *prop =
+ media_pad_add_prop(pad, MEDIA_PROP_TYPE_S64,
+ name, &val, sizeof(val));
+
+ return PTR_ERR_OR_ZERO(prop);
+}
+
+/**
+ * media_pad_add_prop_string() - Add string property to pad
+ *
+ * @pad: pad where to add the property
+ * @name: property name
+ * @string: property string value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_pad_add_prop_string(struct media_pad *pad,
+ const char *name,
+ const char *string)
+{
+ struct media_prop *prop =
+ media_pad_add_prop(pad, MEDIA_PROP_TYPE_STRING,
+ name, string, strlen(string) + 1);
+
+ return PTR_ERR_OR_ZERO(prop);
+}
+
+/**
+ * media_prop_add_prop_group() - Add group sub-property to property
+ *
+ * @prop: property where to add the sub-property
+ * @name: sub-property name
+ *
+ * Returns the new property on success, or an error pointer on failure.
+ */
+static inline struct media_prop *
+media_prop_add_prop_group(struct media_prop *prop, const char *name)
+{
+ return media_prop_add_prop(prop, MEDIA_PROP_TYPE_GROUP,
+ name, NULL, 0);
+}
+
+/**
+ * media_prop_add_prop_u64() - Add u64 property to property
+ *
+ * @prop: property where to add the sub-property
+ * @name: sub-property name
+ * @val: sub-property value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_prop_add_prop_u64(struct media_prop *prop,
+ const char *name, u64 val)
+{
+ struct media_prop *subprop =
+ media_prop_add_prop(prop, MEDIA_PROP_TYPE_U64,
+ name, &val, sizeof(val));
+
+ return PTR_ERR_OR_ZERO(subprop);
+}
+
+/**
+ * media_prop_add_prop_s64() - Add s64 property to property
+ *
+ * @prop: property where to add the sub-property
+ * @name: sub-property name
+ * @val: sub-property value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_prop_add_prop_s64(struct media_prop *prop,
+ const char *name, s64 val)
+{
+ struct media_prop *subprop =
+ media_prop_add_prop(prop, MEDIA_PROP_TYPE_S64,
+ name, &val, sizeof(val));
+
+ return PTR_ERR_OR_ZERO(subprop);
+}
+
+/**
+ * media_prop_add_prop_string() - Add string property to property
+ *
+ * @prop: property where to add the sub-property
+ * @name: sub-property name
+ * @string: sub-property string value
+ *
+ * Returns 0 on success, or an error on failure.
+ */
+static inline int media_prop_add_prop_string(struct media_prop *prop,
+ const char *name,
+ const char *string)
+{
+ struct media_prop *subprop =
+ media_prop_add_prop(prop, MEDIA_PROP_TYPE_STRING,
+ name, string, strlen(string) + 1);
+
+ return PTR_ERR_OR_ZERO(subprop);
+}
+
/**
* media_entity_remove_links() - remove all links associated with an entity
*
--
2.19.2
