drivers/media/platform/vsp1/vsp1_entity.h

   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
  17 struct vsp1_device;
  18 struct vsp1_dl_body;
  19 struct vsp1_dl_list;
  20 struct vsp1_pipeline;
  21 struct vsp1_partition;
  22 struct vsp1_partition_window;
  23
  24 enum 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  */
  58 struct 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  */
  78 struct 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
  94 struct 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
 121 static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
 122 {
 123         return container_of(subdev, struct vsp1_entity, subdev);
 124 }
 125
 126 int 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);
 129 void vsp1_entity_destroy(struct vsp1_entity *entity);
 130
 131 extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
 132
 133 int vsp1_entity_link_setup(struct media_entity *entity,
 134                            const struct media_pad *local,
 135                            const struct media_pad *remote, u32 flags);
 136
 137 struct v4l2_subdev_pad_config *
 138 vsp1_entity_get_pad_config(struct vsp1_entity *entity,
 139                            struct v4l2_subdev_pad_config *cfg,
 140                            enum v4l2_subdev_format_whence which);
 141 struct v4l2_mbus_framefmt *
 142 vsp1_entity_get_pad_format(struct vsp1_entity *entity,
 143                            struct v4l2_subdev_pad_config *cfg,
 144                            unsigned int pad);
 145 struct v4l2_rect *
 146 vsp1_entity_get_pad_selection(struct vsp1_entity *entity,
 147                               struct v4l2_subdev_pad_config *cfg,
 148                               unsigned int pad, unsigned int target);
 149 int vsp1_entity_init_cfg(struct v4l2_subdev *subdev,
 150                          struct v4l2_subdev_pad_config *cfg);
 151
 152 void vsp1_entity_route_setup(struct vsp1_entity *entity,
 153                              struct vsp1_pipeline *pipe,
 154                              struct vsp1_dl_body *dlb);
 155
 156 void vsp1_entity_configure_stream(struct vsp1_entity *entity,
 157                                   struct vsp1_pipeline *pipe,
 158                                   struct vsp1_dl_body *dlb);
 159
 160 void 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
 165 void 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
 170 struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad);
 171
 172 int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev,
 173                                struct v4l2_subdev_pad_config *cfg,
 174                                struct v4l2_subdev_format *fmt);
 175 int 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);
 181 int 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);
 185 int 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__ */