kernel.git/drivers/media/media-entity.c, branch linux-4.5.y

[media] media-entitiy: add a function to create multiple links

2016-01-11T14:19:26Z

Sometimes, it is desired to create 1:n and n:1 or even n:n links between different entities with the same function. This is actually needed to support DVB devices that have multiple frontends. While we could do a function like that internally at the DVB core, such function is generic enough to be at media-entity, and it could be useful on some other places. So, add such function. Signed-off-by: Mauro Carvalho Chehab

[media] media-entity: increase max number of PADs

2016-01-11T14:19:24Z

The DVB drivers may have 257 PADs. Get the next power of two that would accomodate that amount. Signed-off-by: Mauro Carvalho Chehab

[media] media-device.h: use just one u32 counter for object ID

2016-01-11T14:19:23Z

Instead of using one u32 counter per type for object IDs, use just one counter. With such change, it makes sense to simplify the debug logs too. Signed-off-by: Mauro Carvalho Chehab

[media] move documentation to the header files

2016-01-11T14:19:22Z

Some exported functions were still documented at the .c file, instead of documenting at the .h one. Move the documentation to the right place, as we only use headers at media device-drivers.xml DocBook. Signed-off-by: Mauro Carvalho Chehab

[media] media: Move MEDIA_ENTITY_MAX_PADS from media-entity.h to media-entity.c

2016-01-11T14:19:22Z

This isn't really a part of any interface drivers are expected to use. In order to keep drivers from using it, hide it in media-entity.c. This was always an arbitrary number and should be removed in the long run. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] media: Remove pre-allocated entity enumeration bitmap

2016-01-11T14:19:22Z

The bitmaps for entity enumerations used to be statically allocated. Now that the drivers have been converted to use the new interface which explicitly initialises the enum objects, drop the pre-allocated bitmaps. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] media: Keep using the same graph walk object for a given pipeline

2016-01-11T14:19:20Z

Initialise a given graph walk object once, and then keep using it whilst the same pipeline is running. Once the pipeline is stopped, release the graph walk object. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] media: Use entity enums in graph walk

2016-01-11T14:19:20Z

This will also mean that the necessary graph related data structures will be allocated dynamically, removing the need for maximum ID checks. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] media: Use the new media graph walk interface

2016-01-11T14:19:18Z

The media graph walk requires initialisation and cleanup soon. Update the users to perform the soon necessary API calls. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] media: Amend media graph walk API by init and cleanup functions

2016-01-11T14:19:18Z

Add media_entity_graph_walk_init() and media_entity_graph_walk_cleanup() functions in order to dynamically allocate memory for the graph. This is not done in media_entity_graph_walk_start() as there are situations where e.g. correct error handling, that itself may not fail, requires successful graph walk. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab