LXR linux/drivers/media/platform/vsp1/vsp1

   1/*
   2 * vsp1_entity.h  --  R-Car VSP1 Base Entity
   3 *
   4 * Copyright (C) 2013-2014 Renesas Electronics Corporation
   5 *
   6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 */
  13#ifndef __VSP1_ENTITY_H__
  14#define __VSP1_ENTITY_H__
  15
  16#include <linux/list.h>
  17#include <linux/mutex.h>
  18
  19#include <media/v4l2-subdev.h>
  20
  21struct vsp1_device;
  22struct vsp1_video;
  23
  24enum vsp1_entity_type {
  25        VSP1_ENTITY_BRU,
  26        VSP1_ENTITY_HSI,
  27        VSP1_ENTITY_HST,
  28        VSP1_ENTITY_LIF,
  29        VSP1_ENTITY_LUT,
  30        VSP1_ENTITY_RPF,
  31        VSP1_ENTITY_SRU,
  32        VSP1_ENTITY_UDS,
  33        VSP1_ENTITY_WPF,
  34};
  35
  36/*
  37 * struct vsp1_route - Entity routing configuration
  38 * @type: Entity type this routing entry is associated with
  39 * @index: Entity index this routing entry is associated with
  40 * @reg: Output routing configuration register
  41 * @inputs: Target node value for each input
  42 *
  43 * Each $vsp1_route entry describes routing configuration for the entity
  44 * specified by the entry's @type and @index. @reg indicates the register that
  45 * holds output routing configuration for the entity, and the @inputs array
  46 * store the target node value for each input of the entity.
  47 */
  48struct vsp1_route {
  49        enum vsp1_entity_type type;
  50        unsigned int index;
  51        unsigned int reg;
  52        unsigned int inputs[4];
  53};
  54
  55struct vsp1_entity {
  56        struct vsp1_device *vsp1;
  57
  58        enum vsp1_entity_type type;
  59        unsigned int index;
  60        const struct vsp1_route *route;
  61
  62        struct list_head list_dev;
  63        struct list_head list_pipe;
  64
  65        struct media_pad *pads;
  66        unsigned int source_pad;
  67
  68        struct media_entity *sink;
  69        unsigned int sink_pad;
  70
  71        struct v4l2_subdev subdev;
  72        struct v4l2_mbus_framefmt *formats;
  73
  74        struct vsp1_video *video;
  75
  76        struct mutex lock;              /* Protects the streaming field */
  77        bool streaming;
  78};
  79
  80static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
  81{
  82        return container_of(subdev, struct vsp1_entity, subdev);
  83}
  84
  85int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
  86                     unsigned int num_pads);
  87void vsp1_entity_destroy(struct vsp1_entity *entity);
  88
  89extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
  90extern const struct media_entity_operations vsp1_media_ops;
  91
  92struct v4l2_mbus_framefmt *
  93vsp1_entity_get_pad_format(struct vsp1_entity *entity,
  94                           struct v4l2_subdev_fh *fh,
  95                           unsigned int pad, u32 which);
  96void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
  97                              struct v4l2_subdev_fh *fh);
  98
  99bool vsp1_entity_is_streaming(struct vsp1_entity *entity);
 100int vsp1_entity_set_streaming(struct vsp1_entity *entity, bool streaming);
 101
 102#endif /* __VSP1_ENTITY_H__ */
 103