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Some VSP instances have two blending units named BRU (Blend/ROP Unit) and BRS (Blend/ROP Sub unit). The BRS is a smaller version of the BRU with only two inputs, but otherwise offers similar features and offers the same register interface. The BRU and BRS can be used exchangeably in VSP pipelines (provided no more than two inputs are needed). Due to historical reasons, the VSP1 driver implements support for both the BRU and BRS through objects named vsp1_bru. The code uses the name BRU to refer to either the BRU or the BRS, except in a few places where noted explicitly. This creates confusion. In an effort to avoid confusion, rename the vsp1_bru object and the corresponding API to vsp1_brx, and use BRx to refer to blend unit instances regardless of their type. The names BRU and BRS are retained where reference to a particular blend unit type is needed, as well as in hardware registers to stay close to the datasheet. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
/*
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* vsp1_brx.h -- R-Car VSP1 Blend ROP Unit (BRU and BRS)
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*
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* Copyright (C) 2013 Renesas Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __VSP1_BRX_H__
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#define __VSP1_BRX_H__
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#include <media/media-entity.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1_entity.h"
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struct vsp1_device;
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struct vsp1_rwpf;
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#define BRX_PAD_SINK(n) (n)
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struct vsp1_brx {
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struct vsp1_entity entity;
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unsigned int base;
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struct v4l2_ctrl_handler ctrls;
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struct {
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struct vsp1_rwpf *rpf;
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} inputs[VSP1_MAX_RPF];
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u32 bgcolor;
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};
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static inline struct vsp1_brx *to_brx(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct vsp1_brx, entity.subdev);
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}
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struct vsp1_brx *vsp1_brx_create(struct vsp1_device *vsp1,
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enum vsp1_entity_type type);
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#endif /* __VSP1_BRX_H__ */
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