129  * @function: Internal signal pad/function to route to IO pin
675  * struct v4l2_subdev_pad_config - Used for storing subdev pad information.
692  * @pad: pad number
703 	u32 pad;  member
749  * This structure only needs to be passed to the pad op if the 'which' field
764  * struct v4l2_subdev_pad_ops - v4l2-subdev pad level operations
824  *		     operation shall fail if the pad index it has been called on
832  *	source pad. Subdevs that implement this operation must use the active
842  *	source pad. Subdevs that implement this operation must use the active
881 	int (*s_dv_timings)(struct v4l2_subdev *sd, unsigned int pad,
883 	int (*g_dv_timings)(struct v4l2_subdev *sd, unsigned int pad,
885 	int (*query_dv_timings)(struct v4l2_subdev *sd, unsigned int pad,
896 	int (*get_frame_desc)(struct v4l2_subdev *sd, unsigned int pad,
898 	int (*set_frame_desc)(struct v4l2_subdev *sd, unsigned int pad,
900 	int (*get_mbus_config)(struct v4l2_subdev *sd, unsigned int pad,
907 			      struct v4l2_subdev_state *state, u32 pad,
910 			       struct v4l2_subdev_state *state, u32 pad,
924  * @pad: pointer to &struct v4l2_subdev_pad_ops. Can be %NULL
934 	const struct v4l2_subdev_pad_ops	*pad;  member
994  * - Legacy pad config is _not_ supported (state->pads is NULL)
996  * - Multiple streams per pad are supported
1220  * v4l2_subdev_get_fwnode_pad_1_to_1 - Get pad number from a subdev fwnode
1221  *                                     endpoint, assuming 1:1 port:pad
1227  * subdevices that map port numbers and pad indexes 1:1. If the endpoint
1275  * @pad0: pad number for the first pad
1276  * @pad1: pad number for the second pad
1368  * @pad: pad id
1371  * This returns a pointer to &struct v4l2_mbus_framefmt for the given pad +
1374  * For stream-unaware drivers the format for the corresponding pad is returned.
1375  * If the pad does not exist, NULL is returned.
1390 #define v4l2_subdev_state_get_format(state, pad, ...)				\  argument
1393 			((struct v4l2_subdev_state *)state, pad, ##__VA_ARGS__))
1394 #define __v4l2_subdev_state_get_format_pad(state, pad)	\  argument
1395 	__v4l2_subdev_state_get_format(state, pad, 0)
1398 			       unsigned int pad, u32 stream);
1403  * @pad: pad id
1406  * This returns a pointer to crop rectangle for the given pad + stream in the
1409  * For stream-unaware drivers the crop rectangle for the corresponding pad is
1410  * returned. If the pad does not exist, NULL is returned.
1412 #define v4l2_subdev_state_get_crop(state, pad, ...)				\  argument
1415 			((struct v4l2_subdev_state *)state, pad, ##__VA_ARGS__))
1416 #define __v4l2_subdev_state_get_crop_pad(state, pad)	\  argument
1417 	__v4l2_subdev_state_get_crop(state, pad, 0)
1419 __v4l2_subdev_state_get_crop(struct v4l2_subdev_state *state, unsigned int pad,
1425  * @pad: pad id
1428  * This returns a pointer to compose rectangle for the given pad + stream in the
1431  * For stream-unaware drivers the compose rectangle for the corresponding pad is
1432  * returned. If the pad does not exist, NULL is returned.
1434 #define v4l2_subdev_state_get_compose(state, pad, ...)				\  argument
1437 			((struct v4l2_subdev_state *)state, pad, ##__VA_ARGS__))
1438 #define __v4l2_subdev_state_get_compose_pad(state, pad)	\  argument
1439 	__v4l2_subdev_state_get_compose(state, pad, 0)
1442 				unsigned int pad, u32 stream);
1447  * @pad: pad id
1450  * This returns a pointer to the frame interval for the given pad + stream in
1453  * For stream-unaware drivers the frame interval for the corresponding pad is
1454  * returned. If the pad does not exist, NULL is returned.
1456 #define v4l2_subdev_state_get_interval(state, pad, ...)				\  argument
1459 			((struct v4l2_subdev_state *)state, pad, ##__VA_ARGS__))
1460 #define __v4l2_subdev_state_get_interval_pad(state, pad)	\  argument
1461 	__v4l2_subdev_state_get_interval(state, pad, 0)
1464 				 unsigned int pad, u32 stream);
1551  * @pad: pad id
1553  * @other_pad: pointer used to return the opposite pad
1556  * This function uses the routing table to find the pad + stream which is
1557  * opposite the given pad + stream.
1565 					  u32 pad, u32 stream, u32 *other_pad,
1572  * @pad: pad id
1575  * This returns a pointer to &struct v4l2_mbus_framefmt for the pad + stream
1576  * that is opposite the given pad + stream in the subdev state.
1578  * If the state does not contain the given pad + stream, NULL is returned.
1582 					     u32 pad, u32 stream);
1585  * v4l2_subdev_state_xlate_streams() - Translate streams from one pad to another
1588  * @pad0: The first pad
1589  * @pad1: The second pad
1590  * @streams: Streams bitmask on the first pad
1617  *	all streams from a sink pad must be routed to a single source pad
1619  *	all streams on a source pad must originate from a single sink pad
1628  *	all streams from a sink pad must be routed to a single source pad, and
1629  *	that source pad shall not get routes from any other sink pad
1669  * v4l2_subdev_enable_streams() - Enable streams on a pad
1671  * @pad: The pad
1674  * This function enables streams on a source @pad of a subdevice. The pad is
1676  * @streams_mask bitmask. This allows enabling multiple streams on a pad at
1686  * operation, limited to subdevs that have a single source pad.
1693  * * -EINVAL: The pad index is invalid, or doesn't correspond to a source pad
1697 int v4l2_subdev_enable_streams(struct v4l2_subdev *sd, u32 pad,
1701  * v4l2_subdev_disable_streams() - Disable streams on a pad
1703  * @pad: The pad
1706  * This function disables streams on a source @pad of a subdevice. The pad is
1708  * @streams_mask bitmask. This allows disabling multiple streams on a pad at
1718  * operation, limited to subdevs that have a single source pad.
1725  * * -EINVAL: The pad index is invalid, or doesn't correspond to a source pad
1729 int v4l2_subdev_disable_streams(struct v4l2_subdev *sd, u32 pad,
1743  * This helper can only be used by subdevs that have a single source pad.