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

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * vsp1_entity.h  --  R-Car VSP1 Base Entity
   4 *
   5 * Copyright (C) 2013-2014 Renesas Electronics Corporation
   6 *
   7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   8 */
   9#ifndef __VSP1_ENTITY_H__
  10#define __VSP1_ENTITY_H__
  11
  12#include <linux/list.h>
  13#include <linux/mutex.h>
  14
  15#include <media/v4l2-subdev.h>
  16
  17struct vsp1_device;
  18struct vsp1_dl_body;
  19struct vsp1_dl_list;
  20struct vsp1_pipeline;
  21struct vsp1_partition;
  22struct vsp1_partition_window;
  23
  24enum vsp1_entity_type {
  25        VSP1_ENTITY_BRS,
  26        VSP1_ENTITY_BRU,
  27        VSP1_ENTITY_CLU,
  28        VSP1_ENTITY_HGO,
  29        VSP1_ENTITY_HGT,
  30        VSP1_ENTITY_HSI,
  31        VSP1_ENTITY_HST,
  32        VSP1_ENTITY_LIF,
  33        VSP1_ENTITY_LUT,
  34        VSP1_ENTITY_RPF,
  35        VSP1_ENTITY_SRU,
  36        VSP1_ENTITY_UDS,
  37        VSP1_ENTITY_UIF,
  38        VSP1_ENTITY_WPF,
  39};
  40
  41#define VSP1_ENTITY_MAX_INPUTS          5       /* For the BRU */
  42
  43/*
  44 * struct vsp1_route - Entity routing configuration
  45 * @type: Entity type this routing entry is associated with
  46 * @index: Entity index this routing entry is associated with
  47 * @reg: Output routing configuration register
  48 * @inputs: Target node value for each input
  49 * @output: Target node value for entity output
  50 *
  51 * Each $vsp1_route entry describes routing configuration for the entity
  52 * specified by the entry's @type and @index. @reg indicates the register that
  53 * holds output routing configuration for the entity, and the @inputs array
  54 * store the target node value for each input of the entity. The @output field
  55 * stores the target node value of the entity output when used as a source for
  56 * histogram generation.
  57 */
  58struct vsp1_route {
  59        enum vsp1_entity_type type;
  60        unsigned int index;
  61        unsigned int reg;
  62        unsigned int inputs[VSP1_ENTITY_MAX_INPUTS];
  63        unsigned int output;
  64};
  65
  66/**
  67 * struct vsp1_entity_operations - Entity operations
  68 * @destroy:    Destroy the entity.
  69 * @configure_stream:   Setup the hardware parameters for the stream which do
  70 *                      not vary between frames (pipeline, formats).
  71 * @configure_frame:    Configure the runtime parameters for each frame.
  72 * @configure_partition: Configure partition specific parameters.
  73 * @max_width:  Return the max supported width of data that the entity can
  74 *              process in a single operation.
  75 * @partition:  Process the partition construction based on this entity's
  76 *              configuration.
  77 */
  78struct vsp1_entity_operations {
  79        void (*destroy)(struct vsp1_entity *);
  80        void (*configure_stream)(struct vsp1_entity *, struct vsp1_pipeline *,
  81                                 struct vsp1_dl_body *);
  82        void (*configure_frame)(struct vsp1_entity *, struct vsp1_pipeline *,
  83                                struct vsp1_dl_list *, struct vsp1_dl_body *);
  84        void (*configure_partition)(struct vsp1_entity *,
  85                                    struct vsp1_pipeline *,
  86                                    struct vsp1_dl_list *,
  87                                    struct vsp1_dl_body *);
  88        unsigned int (*max_width)(struct vsp1_entity *, struct vsp1_pipeline *);
  89        void (*partition)(struct vsp1_entity *, struct vsp1_pipeline *,
  90                          struct vsp1_partition *, unsigned int,
  91                          struct vsp1_partition_window *);
  92};
  93
  94struct vsp1_entity {
  95        struct vsp1_device *vsp1;
  96
  97        const struct vsp1_entity_operations *ops;
  98
  99        enum vsp1_entity_type type;
 100        unsigned int index;
 101        const struct vsp1_route *route;
 102
 103        struct vsp1_pipeline *pipe;
 104
 105        struct list_head list_dev;
 106        struct list_head list_pipe;
 107
 108        struct media_pad *pads;
 109        unsigned int source_pad;
 110
 111        struct vsp1_entity **sources;
 112        struct vsp1_entity *sink;
 113        unsigned int sink_pad;
 114
 115        struct v4l2_subdev subdev;
 116        struct v4l2_subdev_pad_config *config;
 117
 118        struct mutex lock;      /* Protects the pad config */
 119};
 120
 121static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
 122{
 123        return container_of(subdev, struct vsp1_entity, subdev);
 124}
 125
 126int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
 127                     const char *name, unsigned int num_pads,
 128                     const struct v4l2_subdev_ops *ops, u32 function);
 129void vsp1_entity_destroy(struct vsp1_entity *entity);
 130
 131extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
 132
 133int vsp1_entity_link_setup(struct media_entity *entity,
 134                           const struct media_pad *local,
 135                           const struct media_pad *remote, u32 flags);
 136
 137struct v4l2_subdev_pad_config *
 138vsp1_entity_get_pad_config(struct vsp1_entity *entity,
 139                           struct v4l2_subdev_pad_config *cfg,
 140                           enum v4l2_subdev_format_whence which);
 141struct v4l2_mbus_framefmt *
 142vsp1_entity_get_pad_format(struct vsp1_entity *entity,
 143                           struct v4l2_subdev_pad_config *cfg,
 144                           unsigned int pad);
 145struct v4l2_rect *
 146vsp1_entity_get_pad_selection(struct vsp1_entity *entity,
 147                              struct v4l2_subdev_pad_config *cfg,
 148                              unsigned int pad, unsigned int target);
 149int vsp1_entity_init_cfg(struct v4l2_subdev *subdev,
 150                         struct v4l2_subdev_pad_config *cfg);
 151
 152void vsp1_entity_route_setup(struct vsp1_entity *entity,
 153                             struct vsp1_pipeline *pipe,
 154                             struct vsp1_dl_body *dlb);
 155
 156void vsp1_entity_configure_stream(struct vsp1_entity *entity,
 157                                  struct vsp1_pipeline *pipe,
 158                                  struct vsp1_dl_body *dlb);
 159
 160void vsp1_entity_configure_frame(struct vsp1_entity *entity,
 161                                 struct vsp1_pipeline *pipe,
 162                                 struct vsp1_dl_list *dl,
 163                                 struct vsp1_dl_body *dlb);
 164
 165void vsp1_entity_configure_partition(struct vsp1_entity *entity,
 166                                     struct vsp1_pipeline *pipe,
 167                                     struct vsp1_dl_list *dl,
 168                                     struct vsp1_dl_body *dlb);
 169
 170struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad);
 171
 172int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev,
 173                               struct v4l2_subdev_pad_config *cfg,
 174                               struct v4l2_subdev_format *fmt);
 175int vsp1_subdev_set_pad_format(struct v4l2_subdev *subdev,
 176                               struct v4l2_subdev_pad_config *cfg,
 177                               struct v4l2_subdev_format *fmt,
 178                               const unsigned int *codes, unsigned int ncodes,
 179                               unsigned int min_width, unsigned int min_height,
 180                               unsigned int max_width, unsigned int max_height);
 181int vsp1_subdev_enum_mbus_code(struct v4l2_subdev *subdev,
 182                               struct v4l2_subdev_pad_config *cfg,
 183                               struct v4l2_subdev_mbus_code_enum *code,
 184                               const unsigned int *codes, unsigned int ncodes);
 185int vsp1_subdev_enum_frame_size(struct v4l2_subdev *subdev,
 186                                struct v4l2_subdev_pad_config *cfg,
 187                                struct v4l2_subdev_frame_size_enum *fse,
 188                                unsigned int min_w, unsigned int min_h,
 189                                unsigned int max_w, unsigned int max_h);
 190
 191#endif /* __VSP1_ENTITY_H__ */
 192