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author | Laurent Pinchart | 2016-02-25 00:40:22 +0100 |
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committer | Mauro Carvalho Chehab | 2017-04-15 03:48:33 +0200 |
commit | f2421521de185c0281799712863db8e23d29a375 (patch) | |
tree | dd6069b9d23bfeb7f7a5a2fe33a98c0f50ad9c73 /drivers/media/platform/vsp1/vsp1_hgo.h | |
parent | [media] v4l: Define a pixel format for the R-Car VSP1 1-D histogram engine (diff) | |
download | kernel-qcow2-linux-f2421521de185c0281799712863db8e23d29a375.tar.gz kernel-qcow2-linux-f2421521de185c0281799712863db8e23d29a375.tar.xz kernel-qcow2-linux-f2421521de185c0281799712863db8e23d29a375.zip |
[media] v4l: vsp1: Add HGO support
The HGO is a Histogram Generator One-Dimension. It computes per-channel
histograms over a configurable region of the image with optional
subsampling.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_hgo.h')
-rw-r--r-- | drivers/media/platform/vsp1/vsp1_hgo.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_hgo.h b/drivers/media/platform/vsp1/vsp1_hgo.h new file mode 100644 index 000000000000..c6c0b7a80e0c --- /dev/null +++ b/drivers/media/platform/vsp1/vsp1_hgo.h @@ -0,0 +1,45 @@ +/* + * vsp1_hgo.h -- R-Car VSP1 Histogram Generator 1D + * + * Copyright (C) 2016 Renesas Electronics Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#ifndef __VSP1_HGO_H__ +#define __VSP1_HGO_H__ + +#include <media/media-entity.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-subdev.h> + +#include "vsp1_histo.h" + +struct vsp1_device; + +struct vsp1_hgo { + struct vsp1_histogram histo; + + struct { + struct v4l2_ctrl_handler handler; + struct v4l2_ctrl *max_rgb; + struct v4l2_ctrl *num_bins; + } ctrls; + + bool max_rgb; + unsigned int num_bins; +}; + +static inline struct vsp1_hgo *to_hgo(struct v4l2_subdev *subdev) +{ + return container_of(subdev, struct vsp1_hgo, histo.entity.subdev); +} + +struct vsp1_hgo *vsp1_hgo_create(struct vsp1_device *vsp1); +void vsp1_hgo_frame_end(struct vsp1_entity *hgo); + +#endif /* __VSP1_HGO_H__ */ |