Jean-Michel Hautbois
59687683a1
We can have a saturation ratio per cell, giving the percentage of pixels over a threshold within a cell where 100% is set to 0xff. The parameter structure 'ipu3_uapi_awb_config_s' contains four fields to set the threshold, one per channel. The blue field is also used to configure the ImgU and make it calculate the saturation ratio or not. Set a green value saturated when it is more than 230 (90% of the maximum value 255, coded as 8191). As this is the only channel used for AGC, there is no need to apply it to the other ones. Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>