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* vsp1_entity.h -- R-Car VSP1 Base Entity
* Copyright (C) 2013-2014 Renesas Electronics Corporation
* Contact: Laurent Pinchart (
* 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_ENTITY_H__
#define __VSP1_ENTITY_H__
#include <linux/list.h>
#include <linux/mutex.h>
#include <media/v4l2-subdev.h>
struct vsp1_device;
struct vsp1_video;
enum vsp1_entity_type {
* struct vsp1_route - Entity routing configuration
* @type: Entity type this routing entry is associated with
* @index: Entity index this routing entry is associated with
* @reg: Output routing configuration register
* @inputs: Target node value for each input
* Each $vsp1_route entry describes routing configuration for the entity
* specified by the entry's @type and @index. @reg indicates the register that
* holds output routing configuration for the entity, and the @inputs array
* store the target node value for each input of the entity.
struct vsp1_route {
enum vsp1_entity_type type;
unsigned int index;
unsigned int reg;
unsigned int inputs[4];
struct vsp1_entity {
struct vsp1_device *vsp1;
enum vsp1_entity_type type;
unsigned int index;
const struct vsp1_route *route;
struct list_head list_dev;
struct list_head list_pipe;
struct media_pad *pads;
unsigned int source_pad;
struct media_entity *sink;
unsigned int sink_pad;
struct v4l2_subdev subdev;
struct v4l2_mbus_framefmt *formats;
struct vsp1_video *video;
struct mutex lock; /* Protects the streaming field */
bool streaming;
static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
return container_of(subdev, struct vsp1_entity, subdev);
int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
unsigned int num_pads);
void vsp1_entity_destroy(struct vsp1_entity *entity);
extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
extern const struct media_entity_operations vsp1_media_ops;
struct v4l2_mbus_framefmt *
vsp1_entity_get_pad_format(struct vsp1_entity *entity,
struct v4l2_subdev_pad_config *cfg,
unsigned int pad, u32 which);
void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
struct v4l2_subdev_pad_config *cfg);
bool vsp1_entity_is_streaming(struct vsp1_entity *entity);
int vsp1_entity_set_streaming(struct vsp1_entity *entity, bool streaming);
#endif /* __VSP1_ENTITY_H__ */