drivers/media/platform/vsp1/vsp1_hgt.h

   1 /*
   2  * vsp1_hgt.h  --  R-Car VSP1 Histogram Generator 2D
   3  *
   4  * Copyright (C) 2016 Renesas Electronics Corporation
   5  *
   6  * Contact: Niklas Söderlund (niklas.soderlund@ragnatech.se)
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  */
  13 #ifndef __VSP1_HGT_H__
  14 #define __VSP1_HGT_H__
  15
  16 #include <media/media-entity.h>
  17 #include <media/v4l2-ctrls.h>
  18 #include <media/v4l2-subdev.h>
  19
  20 #include "vsp1_histo.h"
  21
  22 struct vsp1_device;
  23
  24 #define HGT_NUM_HUE_AREAS                       6
  25
  26 struct vsp1_hgt {
  27         struct vsp1_histogram histo;
  28
  29         struct v4l2_ctrl_handler ctrls;
  30
  31         u8 hue_areas[HGT_NUM_HUE_AREAS * 2];
  32 };
  33
  34 static inline struct vsp1_hgt *to_hgt(struct v4l2_subdev *subdev)
  35 {
  36         return container_of(subdev, struct vsp1_hgt, histo.entity.subdev);
  37 }
  38
  39 struct vsp1_hgt *vsp1_hgt_create(struct vsp1_device *vsp1);
  40 void vsp1_hgt_frame_end(struct vsp1_entity *hgt);
  41
  42 #endif /* __VSP1_HGT_H__ */