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_pad_config *cfg,
95			   unsigned int pad, u32 which);
96void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
97			      struct v4l2_subdev_pad_config *cfg);
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