blob: 9fd688bfe6380632dcf16e590ba20d97c21cad01 (
plain)
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
|
/*
* vsp1_pipe.h -- R-Car VSP1 Pipeline
*
* 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_PIPE_H__
#define __VSP1_PIPE_H__
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <media/media-entity.h>
struct vsp1_dl_list;
struct vsp1_rwpf;
/*
* 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
* @pipe: the media pipeline
* @irqlock: protects the pipeline state
* @state: current state
* @wq: work queue to wait for state change completion
* @frame_end: frame end interrupt handler
* @lock: protects the pipeline use count and stream count
* @use_count: number of video nodes using the pipeline
* @stream_count: number of streaming video nodes
* @buffers_ready: bitmask of RPFs and WPFs with at least one buffer available
* @num_inputs: number of RPFs
* @inputs: array of RPFs in the pipeline (indexed by RPF index)
* @output: WPF at the output of the pipeline
* @bru: BRU entity, if present
* @lif: LIF entity, if present
* @uds: UDS entity, if present
* @uds_input: entity at the input of the UDS, if the UDS is present
* @entities: list of entities in the pipeline
* @dl: display list associated with the pipeline
*/
struct vsp1_pipeline {
struct media_pipeline pipe;
spinlock_t irqlock;
enum vsp1_pipeline_state state;
wait_queue_head_t wq;
void (*frame_end)(struct vsp1_pipeline *pipe);
struct mutex lock;
unsigned int use_count;
unsigned int stream_count;
unsigned int buffers_ready;
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;
struct vsp1_dl_list *dl;
};
void vsp1_pipeline_reset(struct vsp1_pipeline *pipe);
void vsp1_pipeline_init(struct vsp1_pipeline *pipe);
void vsp1_pipeline_run(struct vsp1_pipeline *pipe);
bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe);
int vsp1_pipeline_stop(struct vsp1_pipeline *pipe);
bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe);
void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe);
void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
struct vsp1_entity *input,
struct vsp1_dl_list *dl,
unsigned int alpha);
void vsp1_pipelines_suspend(struct vsp1_device *vsp1);
void vsp1_pipelines_resume(struct vsp1_device *vsp1);
const struct vsp1_format_info *vsp1_get_format_info(u32 fourcc);
#endif /* __VSP1_PIPE_H__ */
|
