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1 /*
2  * vsp1_rwpf.h  --  R-Car VSP1 Read and Write Pixel Formatters
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_RWPF_H__
14 #define __VSP1_RWPF_H__
15 
16 #include <linux/spinlock.h>
17 
18 #include <media/media-entity.h>
19 #include <media/v4l2-ctrls.h>
20 #include <media/v4l2-subdev.h>
21 
22 #include "vsp1.h"
23 #include "vsp1_entity.h"
24 
25 #define RWPF_PAD_SINK				0
26 #define RWPF_PAD_SOURCE				1
27 
28 struct v4l2_ctrl;
29 struct vsp1_dl_manager;
30 struct vsp1_pipeline;
31 struct vsp1_rwpf;
32 struct vsp1_video;
33 
34 struct vsp1_rwpf_memory {
35 	dma_addr_t addr[3];
36 };
37 
38 struct vsp1_rwpf {
39 	struct vsp1_entity entity;
40 	struct v4l2_ctrl_handler ctrls;
41 
42 	struct vsp1_pipeline *pipe;
43 	struct vsp1_video *video;
44 
45 	unsigned int max_width;
46 	unsigned int max_height;
47 
48 	struct v4l2_pix_format_mplane format;
49 	const struct vsp1_format_info *fmtinfo;
50 	unsigned int bru_input;
51 
52 	unsigned int alpha;
53 
54 	u32 mult_alpha;
55 	u32 outfmt;
56 
57 	struct {
58 		spinlock_t lock;
59 		struct v4l2_ctrl *ctrls[2];
60 		unsigned int pending;
61 		unsigned int active;
62 	} flip;
63 
64 	struct vsp1_rwpf_memory mem;
65 
66 	struct vsp1_dl_manager *dlm;
67 };
68 
to_rwpf(struct v4l2_subdev * subdev)69 static inline struct vsp1_rwpf *to_rwpf(struct v4l2_subdev *subdev)
70 {
71 	return container_of(subdev, struct vsp1_rwpf, entity.subdev);
72 }
73 
entity_to_rwpf(struct vsp1_entity * entity)74 static inline struct vsp1_rwpf *entity_to_rwpf(struct vsp1_entity *entity)
75 {
76 	return container_of(entity, struct vsp1_rwpf, entity);
77 }
78 
79 struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index);
80 struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index);
81 
82 int vsp1_rwpf_init_ctrls(struct vsp1_rwpf *rwpf, unsigned int ncontrols);
83 
84 extern const struct v4l2_subdev_pad_ops vsp1_rwpf_pad_ops;
85 
86 struct v4l2_rect *vsp1_rwpf_get_crop(struct vsp1_rwpf *rwpf,
87 				     struct v4l2_subdev_pad_config *config);
88 
89 #endif /* __VSP1_RWPF_H__ */
90