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Histogram generators are single-pad entities that branch as leaf nodes at any point in the pipeline. Make sure that pipeline traversal and routing configuration support them correctly. Support for the actual HGO and HGT operation will come later. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
168 lines
5.2 KiB
C
168 lines
5.2 KiB
C
/*
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* vsp1_entity.h -- R-Car VSP1 Base Entity
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*
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* Copyright (C) 2013-2014 Renesas Electronics 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_ENTITY_H__
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#define __VSP1_ENTITY_H__
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#include <linux/list.h>
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#include <linux/mutex.h>
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#include <media/v4l2-subdev.h>
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struct vsp1_device;
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struct vsp1_dl_list;
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struct vsp1_pipeline;
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enum vsp1_entity_type {
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VSP1_ENTITY_BRU,
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VSP1_ENTITY_CLU,
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VSP1_ENTITY_HGO,
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VSP1_ENTITY_HGT,
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VSP1_ENTITY_HSI,
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VSP1_ENTITY_HST,
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VSP1_ENTITY_LIF,
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VSP1_ENTITY_LUT,
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VSP1_ENTITY_RPF,
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VSP1_ENTITY_SRU,
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VSP1_ENTITY_UDS,
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VSP1_ENTITY_WPF,
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};
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/**
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* enum vsp1_entity_params - Entity configuration parameters class
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* @VSP1_ENTITY_PARAMS_INIT - Initial parameters
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* @VSP1_ENTITY_PARAMS_PARTITION - Per-image partition parameters
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* @VSP1_ENTITY_PARAMS_RUNTIME - Runtime-configurable parameters
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*/
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enum vsp1_entity_params {
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VSP1_ENTITY_PARAMS_INIT,
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VSP1_ENTITY_PARAMS_PARTITION,
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VSP1_ENTITY_PARAMS_RUNTIME,
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};
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#define VSP1_ENTITY_MAX_INPUTS 5 /* For the BRU */
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/*
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* struct vsp1_route - Entity routing configuration
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* @type: Entity type this routing entry is associated with
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* @index: Entity index this routing entry is associated with
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* @reg: Output routing configuration register
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* @inputs: Target node value for each input
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* @output: Target node value for entity output
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*
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* Each $vsp1_route entry describes routing configuration for the entity
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* specified by the entry's @type and @index. @reg indicates the register that
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* holds output routing configuration for the entity, and the @inputs array
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* store the target node value for each input of the entity. The @output field
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* stores the target node value of the entity output when used as a source for
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* histogram generation.
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*/
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struct vsp1_route {
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enum vsp1_entity_type type;
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unsigned int index;
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unsigned int reg;
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unsigned int inputs[VSP1_ENTITY_MAX_INPUTS];
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unsigned int output;
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};
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/**
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* struct vsp1_entity_operations - Entity operations
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* @destroy: Destroy the entity.
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* @configure: Setup the hardware based on the entity state (pipeline, formats,
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* selection rectangles, ...)
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* @max_width: Return the max supported width of data that the entity can
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* process in a single operation.
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*/
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struct vsp1_entity_operations {
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void (*destroy)(struct vsp1_entity *);
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void (*configure)(struct vsp1_entity *, struct vsp1_pipeline *,
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struct vsp1_dl_list *, enum vsp1_entity_params);
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unsigned int (*max_width)(struct vsp1_entity *, struct vsp1_pipeline *);
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};
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struct vsp1_entity {
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struct vsp1_device *vsp1;
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const struct vsp1_entity_operations *ops;
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enum vsp1_entity_type type;
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unsigned int index;
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const struct vsp1_route *route;
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struct list_head list_dev;
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struct list_head list_pipe;
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struct media_pad *pads;
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unsigned int source_pad;
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struct media_entity **sources;
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struct media_entity *sink;
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unsigned int sink_pad;
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struct v4l2_subdev subdev;
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struct v4l2_subdev_pad_config *config;
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struct mutex lock; /* Protects the pad config */
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};
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static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct vsp1_entity, subdev);
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}
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int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
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const char *name, unsigned int num_pads,
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const struct v4l2_subdev_ops *ops, u32 function);
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void vsp1_entity_destroy(struct vsp1_entity *entity);
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extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
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int vsp1_entity_link_setup(struct media_entity *entity,
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const struct media_pad *local,
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const struct media_pad *remote, u32 flags);
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struct v4l2_subdev_pad_config *
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vsp1_entity_get_pad_config(struct vsp1_entity *entity,
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struct v4l2_subdev_pad_config *cfg,
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enum v4l2_subdev_format_whence which);
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struct v4l2_mbus_framefmt *
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vsp1_entity_get_pad_format(struct vsp1_entity *entity,
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struct v4l2_subdev_pad_config *cfg,
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unsigned int pad);
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struct v4l2_rect *
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vsp1_entity_get_pad_selection(struct vsp1_entity *entity,
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struct v4l2_subdev_pad_config *cfg,
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unsigned int pad, unsigned int target);
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int vsp1_entity_init_cfg(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg);
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void vsp1_entity_route_setup(struct vsp1_entity *entity,
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struct vsp1_pipeline *pipe,
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struct vsp1_dl_list *dl);
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struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad);
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int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt);
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int vsp1_subdev_enum_mbus_code(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_mbus_code_enum *code,
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const unsigned int *codes, unsigned int ncodes);
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int vsp1_subdev_enum_frame_size(struct v4l2_subdev *subdev,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_frame_size_enum *fse,
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unsigned int min_w, unsigned int min_h,
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unsigned int max_w, unsigned int max_h);
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#endif /* __VSP1_ENTITY_H__ */
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