With the refactored CIO2 interface it's now easy to add zero-copy for
buffers in the RAW stream. Use the internally allocated buffers inside
the CIO2Device if no buffer for the RAW stream is provided by the
application, or use the application-provided buffer if any.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The allocation and freeing of buffers for the CIO2 is handled in the
IPU3 pipeline handlers start() and stop() functions. These functions
also call CIO2Device start() and stop() at the appropriate times so
move the CIO2 buffer allocation/freeing inside the CIO2Device and reduce
the complexity of the exposed interface.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
In order to make the CIO2 easier to extend with new features make the
V4L2 devices (sensor, CIO2 and video device) private members. This
requires a few helper functions to be added to allow for the IPU3 driver
to still be able to interact with all parts of the CIO2. These helper
functions will later be extended to add new features to the IPU3
pipeline.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Collect the code used to generate configurations for the CIO2 block in
the CIO2Device class. This allows simplifying the code and allow further
changes to only happen at one code location.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Instead of spreading the mapping between media bus codes and V4L2 FourCC
all over the CIO2 code collect it in a single map and extract the data
from it. This is done in preparation of adding PixelFormat information
to the mix.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Niklas Söderlund