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Merge tag 'vfs-6.13-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
[J-linux.git] / drivers / media / platform / renesas / 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 ([email protected])
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
23 enum vsp1_entity_type {
24         VSP1_ENTITY_BRS,
25         VSP1_ENTITY_BRU,
26         VSP1_ENTITY_CLU,
27         VSP1_ENTITY_HGO,
28         VSP1_ENTITY_HGT,
29         VSP1_ENTITY_HSI,
30         VSP1_ENTITY_HST,
31         VSP1_ENTITY_LIF,
32         VSP1_ENTITY_LUT,
33         VSP1_ENTITY_RPF,
34         VSP1_ENTITY_SRU,
35         VSP1_ENTITY_UDS,
36         VSP1_ENTITY_UIF,
37         VSP1_ENTITY_WPF,
38 };
39
40 #define VSP1_ENTITY_MAX_INPUTS          5       /* For the BRU */
41
42 /*
43  * struct vsp1_route - Entity routing configuration
44  * @type: Entity type this routing entry is associated with
45  * @index: Entity index this routing entry is associated with
46  * @reg: Output routing configuration register
47  * @inputs: Target node value for each input
48  * @output: Target node value for entity output
49  *
50  * Each $vsp1_route entry describes routing configuration for the entity
51  * specified by the entry's @type and @index. @reg indicates the register that
52  * holds output routing configuration for the entity, and the @inputs array
53  * store the target node value for each input of the entity. The @output field
54  * stores the target node value of the entity output when used as a source for
55  * histogram generation.
56  */
57 struct vsp1_route {
58         enum vsp1_entity_type type;
59         unsigned int index;
60         unsigned int reg;
61         unsigned int inputs[VSP1_ENTITY_MAX_INPUTS];
62         unsigned int output;
63 };
64
65 /**
66  * struct vsp1_entity_operations - Entity operations
67  * @destroy:    Destroy the entity.
68  * @configure_stream:   Setup the hardware parameters for the stream which do
69  *                      not vary between frames (pipeline, formats). Note that
70  *                      the vsp1_dl_list argument is only valid for display
71  *                      pipeline and will be NULL for mem-to-mem pipelines.
72  * @configure_frame:    Configure the runtime parameters for each frame.
73  * @configure_partition: Configure partition specific parameters.
74  * @max_width:  Return the max supported width of data that the entity can
75  *              process in a single operation.
76  * @partition:  Process the partition construction based on this entity's
77  *              configuration.
78  */
79 struct vsp1_entity_operations {
80         void (*destroy)(struct vsp1_entity *entity);
81         void (*configure_stream)(struct vsp1_entity *entity,
82                                  struct v4l2_subdev_state *state,
83                                  struct vsp1_pipeline *pipe,
84                                  struct vsp1_dl_list *dl,
85                                  struct vsp1_dl_body *dlb);
86         void (*configure_frame)(struct vsp1_entity *entity,
87                                 struct vsp1_pipeline *pipe,
88                                 struct vsp1_dl_list *dl,
89                                 struct vsp1_dl_body *dlb);
90         void (*configure_partition)(struct vsp1_entity *entity,
91                                     struct vsp1_pipeline *pipe,
92                                     const struct vsp1_partition *partition,
93                                     struct vsp1_dl_list *dl,
94                                     struct vsp1_dl_body *dlb);
95         unsigned int (*max_width)(struct vsp1_entity *entity,
96                                   struct v4l2_subdev_state *state,
97                                   struct vsp1_pipeline *pipe);
98         void (*partition)(struct vsp1_entity *entity,
99                           struct v4l2_subdev_state *state,
100                           struct vsp1_pipeline *pipe,
101                           struct vsp1_partition *partition,
102                           unsigned int index,
103                           struct v4l2_rect *window);
104 };
105
106 struct vsp1_entity {
107         struct vsp1_device *vsp1;
108
109         const struct vsp1_entity_operations *ops;
110
111         enum vsp1_entity_type type;
112         unsigned int index;
113         const struct vsp1_route *route;
114
115         struct vsp1_pipeline *pipe;
116
117         struct list_head list_dev;
118         struct list_head list_pipe;
119
120         struct media_pad *pads;
121         unsigned int source_pad;
122
123         struct vsp1_entity **sources;
124         struct vsp1_entity *sink;
125         unsigned int sink_pad;
126
127         struct v4l2_subdev subdev;
128         struct v4l2_subdev_state *state;
129
130         struct mutex lock;      /* Protects the state */
131 };
132
133 static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
134 {
135         return container_of(subdev, struct vsp1_entity, subdev);
136 }
137
138 int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
139                      const char *name, unsigned int num_pads,
140                      const struct v4l2_subdev_ops *ops, u32 function);
141 void vsp1_entity_destroy(struct vsp1_entity *entity);
142
143 int vsp1_entity_link_setup(struct media_entity *entity,
144                            const struct media_pad *local,
145                            const struct media_pad *remote, u32 flags);
146
147 struct v4l2_subdev_state *
148 vsp1_entity_get_state(struct vsp1_entity *entity,
149                       struct v4l2_subdev_state *sd_state,
150                       enum v4l2_subdev_format_whence which);
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 v4l2_subdev_state *state,
158                                   struct vsp1_pipeline *pipe,
159                                   struct vsp1_dl_list *dl,
160                                   struct vsp1_dl_body *dlb);
161
162 void vsp1_entity_configure_frame(struct vsp1_entity *entity,
163                                  struct vsp1_pipeline *pipe,
164                                  struct vsp1_dl_list *dl,
165                                  struct vsp1_dl_body *dlb);
166
167 void vsp1_entity_configure_partition(struct vsp1_entity *entity,
168                                      struct vsp1_pipeline *pipe,
169                                      const struct vsp1_partition *partition,
170                                      struct vsp1_dl_list *dl,
171                                      struct vsp1_dl_body *dlb);
172
173 struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad);
174
175 int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev,
176                                struct v4l2_subdev_state *sd_state,
177                                struct v4l2_subdev_format *fmt);
178 int vsp1_subdev_set_pad_format(struct v4l2_subdev *subdev,
179                                struct v4l2_subdev_state *sd_state,
180                                struct v4l2_subdev_format *fmt,
181                                const unsigned int *codes, unsigned int ncodes,
182                                unsigned int min_width, unsigned int min_height,
183                                unsigned int max_width, unsigned int max_height);
184 int vsp1_subdev_enum_mbus_code(struct v4l2_subdev *subdev,
185                                struct v4l2_subdev_state *sd_state,
186                                struct v4l2_subdev_mbus_code_enum *code,
187                                const unsigned int *codes, unsigned int ncodes);
188 int vsp1_subdev_enum_frame_size(struct v4l2_subdev *subdev,
189                                 struct v4l2_subdev_state *sd_state,
190                                 struct v4l2_subdev_frame_size_enum *fse,
191                                 unsigned int min_w, unsigned int min_h,
192                                 unsigned int max_w, unsigned int max_h);
193
194 #endif /* __VSP1_ENTITY_H__ */
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