162 lines
5.0 KiB
C
162 lines
5.0 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_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 *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 *source,
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struct vsp1_dl_list *dl);
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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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