On 06/20/18 21:44, Ezequiel Garcia wrote:
> As discussed on IRC, memory-to-memory need to be modeled
> properly in order to be supported by the media controller
> framework, and thus to support the Request API.
>
> The topology looks like this:
>
> Device topology
> - entity 1: source (1 pad, 1 link)
> type Node subtype V4L flags 0
> pad0: Source
> <- "proc":0 [ENABLED,IMMUTABLE]
>
> - entity 3: proc (2 pads, 2 links)
> type Node subtype Unknown flags 0
> pad0: Source
> -> "source":0 [ENABLED,IMMUTABLE]
> pad1: Sink
> <- "sink":0 [ENABLED,IMMUTABLE]
>
> - entity 6: sink (1 pad, 1 link)
> type Node subtype V4L flags 0
> pad0: Sink
> -> "proc":1 [ENABLED,IMMUTABLE]
>
> The first commit introduces a register/unregister API,
> that creates/destroys all the entities and pads needed,
> and links them.
Can you add the output of v4l2-compliance -m /dev/mediaX here as well?
Thanks!
Hans
>
> The second commit uses this API to support the vim2m driver.
>
> Ezequiel Garcia (1):
> media: add helpers for memory-to-memory media controller
>
> Hans Verkuil (1):
> vim2m: add media device
>
> drivers/media/platform/vim2m.c | 41 +++++-
> drivers/media/v4l2-core/v4l2-dev.c | 13 +-
> drivers/media/v4l2-core/v4l2-mem2mem.c | 176 +++++++++++++++++++++++++
> include/media/v4l2-mem2mem.h | 5 +
> include/uapi/linux/media.h | 3 +
> 5 files changed, 229 insertions(+), 9 deletions(-)
>
