1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* vsp1_video.h -- R-Car VSP1 Video Node
*
* Copyright (C) 2013-2015 Renesas Electronics Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __VSP1_VIDEO_H__
#define __VSP1_VIDEO_H__
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <media/media-entity.h>
#include <media/videobuf2-core.h>
struct vsp1_video;
/*
* struct vsp1_format_info - VSP1 video format description
* @mbus: media bus format code
* @fourcc: V4L2 pixel format FCC identifier
* @planes: number of planes
* @bpp: bits per pixel
* @hwfmt: VSP1 hardware format
* @swap_yc: the Y and C components are swapped (Y comes before C)
* @swap_uv: the U and V components are swapped (V comes before U)
* @hsub: horizontal subsampling factor
* @vsub: vertical subsampling factor
* @alpha: has an alpha channel
*/
struct vsp1_format_info {
u32 fourcc;
unsigned int mbus;
unsigned int hwfmt;
unsigned int swap;
unsigned int planes;
unsigned int bpp[3];
bool swap_yc;
bool swap_uv;
unsigned int hsub;
unsigned int vsub;
bool alpha;
};
enum vsp1_pipeline_state {
VSP1_PIPELINE_STOPPED,
VSP1_PIPELINE_RUNNING,
VSP1_PIPELINE_STOPPING,
};
/*
* struct vsp1_pipeline - A VSP1 hardware pipeline
* @media: the media pipeline
* @irqlock: protects the pipeline state
* @lock: protects the pipeline use count and stream count
*/
struct vsp1_pipeline {
struct media_pipeline pipe;
spinlock_t irqlock;
enum vsp1_pipeline_state state;
wait_queue_head_t wq;
struct mutex lock;
unsigned int use_count;
unsigned int stream_count;
unsigned int buffers_ready;
unsigned int num_video;
unsigned int num_inputs;
struct vsp1_rwpf *inputs[VSP1_MAX_RPF];
struct vsp1_rwpf *output;
struct vsp1_entity *bru;
struct vsp1_entity *lif;
struct vsp1_entity *uds;
struct vsp1_entity *uds_input;
struct list_head entities;
};
static inline struct vsp1_pipeline *to_vsp1_pipeline(struct media_entity *e)
{
if (likely(e->pipe))
return container_of(e->pipe, struct vsp1_pipeline, pipe);
else
return NULL;
}
struct vsp1_video_buffer {
struct vb2_buffer buf;
struct list_head queue;
dma_addr_t addr[3];
unsigned int length[3];
};
static inline struct vsp1_video_buffer *
to_vsp1_video_buffer(struct vb2_buffer *vb)
{
return container_of(vb, struct vsp1_video_buffer, buf);
}
struct vsp1_video_operations {
void (*queue)(struct vsp1_video *video, struct vsp1_video_buffer *buf);
};
struct vsp1_video {
struct vsp1_device *vsp1;
struct vsp1_entity *rwpf;
const struct vsp1_video_operations *ops;
struct video_device video;
enum v4l2_buf_type type;
struct media_pad pad;
struct mutex lock;
struct v4l2_pix_format_mplane format;
const struct vsp1_format_info *fmtinfo;
struct vsp1_pipeline pipe;
unsigned int pipe_index;
struct vb2_queue queue;
void *alloc_ctx;
spinlock_t irqlock;
struct list_head irqqueue;
unsigned int sequence;
};
static inline struct vsp1_video *to_vsp1_video(struct video_device *vdev)
{
return container_of(vdev, struct vsp1_video, video);
}
int vsp1_video_init(struct vsp1_video *video, struct vsp1_entity *rwpf);
void vsp1_video_cleanup(struct vsp1_video *video);
void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe);
void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
struct vsp1_entity *input,
unsigned int alpha);
void vsp1_pipelines_suspend(struct vsp1_device *vsp1);
void vsp1_pipelines_resume(struct vsp1_device *vsp1);
#endif /* __VSP1_VIDEO_H__ */
|
