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[RFC,1/2] media: entity: Add has_route entity operation

Message ID 20160627175657.25391-2-niklas.soderlund+renesas@ragnatech.se (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Niklas Söderlund June 27, 2016, 5:56 p.m. UTC 
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The optional operation can be used by entities to report whether two
pads are internally connected.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 include/media/media-entity.h | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/include/media/media-entity.h b/include/media/media-entity.h
index cbb266f..c4b2dca 100644
--- a/include/media/media-entity.h
+++ b/include/media/media-entity.h
@@ -179,6 +179,9 @@  struct media_pad {
  * @link_validate:	Return whether a link is valid from the entity point of
  *			view. The media_entity_pipeline_start() function
  *			validates all links by calling this operation. Optional.
+ * @has_route:		Return whether a route exists inside the entity between
+ *			two given pads. Optional. If the operation isn't
+ *			implemented all pads will be considered as connected.
  *
  * Note: Those these callbacks are called with struct media_device.@graph_mutex
  * mutex held.
@@ -188,6 +191,8 @@  struct media_entity_operations {
 			  const struct media_pad *local,
 			  const struct media_pad *remote, u32 flags);
 	int (*link_validate)(struct media_link *link);
+	bool (*has_route)(struct media_entity *entity, unsigned int pad0,
+			  unsigned int pad1);
 };
 
 /**