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/*
* vsp1_entity.h -- R-Car VSP1 Base Entity
*
* Copyright (C) 2013-2014 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_ENTITY_H__
#define __VSP1_ENTITY_H__
#include <linux/list.h>
#include <linux/mutex.h>
#include <media/v4l2-subdev.h>
struct vsp1_device;
struct vsp1_dl_list;
struct vsp1_pipeline;
enum vsp1_entity_type {
VSP1_ENTITY_BRS,
VSP1_ENTITY_BRU,
VSP1_ENTITY_CLU,
VSP1_ENTITY_HGO,
VSP1_ENTITY_HGT,
VSP1_ENTITY_HSI,
VSP1_ENTITY_HST,
VSP1_ENTITY_LIF,
VSP1_ENTITY_LUT,
VSP1_ENTITY_RPF,
VSP1_ENTITY_SRU,
VSP1_ENTITY_UDS,
VSP1_ENTITY_WPF,
};
/**
* enum vsp1_entity_params - Entity configuration parameters class
* @VSP1_ENTITY_PARAMS_INIT - Initial parameters
* @VSP1_ENTITY_PARAMS_PARTITION - Per-image partition parameters
* @VSP1_ENTITY_PARAMS_RUNTIME - Runtime-configurable parameters
*/
enum vsp1_entity_params {
VSP1_ENTITY_PARAMS_INIT,
VSP1_ENTITY_PARAMS_PARTITION,
VSP1_ENTITY_PARAMS_RUNTIME,
};
#define VSP1_ENTITY_MAX_INPUTS 5 /* For the BRU */
/*
* 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
* @output: Target node value for entity output
*
* 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. The @output field
* stores the target node value of the entity output when used as a source for
* histogram generation.
*/
struct vsp1_route {
enum vsp1_entity_type type;
unsigned int index;
unsigned int reg;
unsigned int inputs[VSP1_ENTITY_MAX_INPUTS];
unsigned int output;
};
/**
* struct vsp1_entity_operations - Entity operations
* @destroy: Destroy the entity.
* @configure: Setup the hardware based on the entity state (pipeline, formats,
* selection rectangles, ...)
* @max_width: Return the max supported width of data that the entity can
* process in a single operation.
*/
struct vsp1_entity_operations {
void (*destroy)(struct vsp1_entity *);
void (*configure)(struct vsp1_entity *, struct vsp1_pipeline *,
struct vsp1_dl_list *, enum vsp1_entity_params);
unsigned int (*max_width)(struct vsp1_entity *, struct vsp1_pipeline *);
};
struct vsp1_entity {
struct vsp1_device *vsp1;
const struct vsp1_entity_operations *ops;
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 vsp1_entity **sources;
struct vsp1_entity *sink;
unsigned int sink_pad;
struct v4l2_subdev subdev;
struct v4l2_subdev_pad_config *config;
struct mutex lock; /* Protects the pad config */
};
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,
const char *name, unsigned int num_pads,
const struct v4l2_subdev_ops *ops, u32 function);
void vsp1_entity_destroy(struct vsp1_entity *entity);
extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
int vsp1_entity_link_setup(struct media_entity *entity,
const struct media_pad *local,
const struct media_pad *remote, u32 flags);
struct v4l2_subdev_pad_config *
vsp1_entity_get_pad_config(struct vsp1_entity *entity,
struct v4l2_subdev_pad_config *cfg,
enum v4l2_subdev_format_whence which);
struct v4l2_mbus_framefmt *
vsp1_entity_get_pad_format(struct vsp1_entity *entity,
struct v4l2_subdev_pad_config *cfg,
unsigned int pad);
struct v4l2_rect *
vsp1_entity_get_pad_selection(struct vsp1_entity *entity,
struct v4l2_subdev_pad_config *cfg,
unsigned int pad, unsigned int target);
int vsp1_entity_init_cfg(struct v4l2_subdev *subdev,
struct v4l2_subdev_pad_config *cfg);
void vsp1_entity_route_setup(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl);
struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad);
int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt);
int vsp1_subdev_enum_mbus_code(struct v4l2_subdev *subdev,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code,
const unsigned int *codes, unsigned int ncodes);
int vsp1_subdev_enum_frame_size(struct v4l2_subdev *subdev,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse,
unsigned int min_w, unsigned int min_h,
unsigned int max_w, unsigned int max_h);
#endif /* __VSP1_ENTITY_H__ */
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