Commit a5e1deec authored by Marco Felsch's avatar Marco Felsch Committed by Mauro Carvalho Chehab
Browse files

media: v4l2-fwnode: add v4l2_fwnode_connector 



Currently every driver needs to parse the connector endpoints by it self.
This is the initial work to make this generic. A generic connector has
common members and connector specific members. The common members are:
  - type
  - label (optional)
  - links
  - nr_of_links

The specific members are stored within a union, since only one of them
can be available at the time. Since this is the initial support the
patch adds only the analog-connector specific ones.

Signed-off-by: default avatarMarco Felsch <m.felsch@pengutronix.de>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 5e316ff5

include/media/v4l2-fwnode.h

+57 −0
Original line number Diff line number Diff line
@@ -127,6 +127,63 @@ struct v4l2_fwnode_link { 
	unsigned int remote_id;

};



/**

 * enum v4l2_connector_type - connector type

 * @V4L2_CONN_UNKNOWN:   unknown connector type, no V4L2 connector configuration

 * @V4L2_CONN_COMPOSITE: analog composite connector

 * @V4L2_CONN_SVIDEO:    analog svideo connector

 */

enum v4l2_connector_type {

	V4L2_CONN_UNKNOWN,

	V4L2_CONN_COMPOSITE,

	V4L2_CONN_SVIDEO,

};



/**

 * struct v4l2_connector_link - connector link data structure

 * @head: structure to be used to add the link to the

 *        &struct v4l2_fwnode_connector

 * @fwnode_link: &struct v4l2_fwnode_link link between the connector and the

 *               device the connector belongs to.

 */

struct v4l2_connector_link {

	struct list_head head;

	struct v4l2_fwnode_link fwnode_link;

};



/**

 * struct v4l2_fwnode_connector_analog - analog connector data structure

 * @sdtv_stds: sdtv standards this connector supports, set to V4L2_STD_ALL

 *             if no restrictions are specified.

 */

struct v4l2_fwnode_connector_analog {

	v4l2_std_id sdtv_stds;

};



/**

 * struct v4l2_fwnode_connector - the connector data structure

 * @name: the connector device name

 * @label: optional connector label

 * @type: connector type

 * @links: list of all connector &struct v4l2_connector_link links

 * @nr_of_links: total number of links

 * @connector: connector configuration

 * @connector.analog: analog connector configuration

 *                    &struct v4l2_fwnode_connector_analog

 */

struct v4l2_fwnode_connector {

	const char *name;

	const char *label;

	enum v4l2_connector_type type;

	struct list_head links;

	unsigned int nr_of_links;



	union {

		struct v4l2_fwnode_connector_analog analog;

		/* future connectors */

	} connector;

};



/**

 * v4l2_fwnode_endpoint_parse() - parse all fwnode node properties

 * @fwnode: pointer to the endpoint's fwnode handle