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Commit 4b8a3c08 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
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[media] media: make media_link more generic to handle interace links 



By adding an union at media_link, we get for free a way to
represent interface->entity links.

No need to change anything at the code, just at the internal
header file.

Acked-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 23615de5

include/media/media-entity.h

+11 −5
Original line number Diff line number Diff line
@@ -75,14 +75,20 @@ struct media_pipeline { 
struct media_link {

	struct media_gobj graph_obj;

	struct list_head list;

	struct media_pad *source;	/* Source pad */

	struct media_pad *sink;		/* Sink pad  */

	union {

		struct media_gobj *gobj0;

		struct media_pad *source;

	};

	union {

		struct media_gobj *gobj1;

		struct media_pad *sink;

	};

	struct media_link *reverse;	/* Link in the reverse direction */

	unsigned long flags;		/* Link flags (MEDIA_LNK_FL_*) */

};



struct media_pad {

	struct media_gobj graph_obj;

	struct media_gobj graph_obj;	/* must be first field in struct */

	struct media_entity *entity;	/* Entity this pad belongs to */

	u16 index;			/* Pad index in the entity pads array */

	unsigned long flags;		/* Pad flags (MEDIA_PAD_FL_*) */
@@ -105,7 +111,7 @@ struct media_entity_operations { 
};



struct media_entity {

	struct media_gobj graph_obj;

	struct media_gobj graph_obj;	/* must be first field in struct */

	struct list_head list;

	const char *name;		/* Entity name */

	u32 type;			/* Entity type (MEDIA_ENT_T_*) */
@@ -119,7 +125,7 @@ struct media_entity { 
	u16 num_backlinks;		/* Number of backlinks */



	struct media_pad *pads;		/* Pads array (num_pads objects) */

	struct list_head links;		/* Links list */

	struct list_head links;		/* Pad-to-pad links list */



	const struct media_entity_operations *ops;	/* Entity operations */