2 * vsp1_pipe.h -- R-Car VSP1 Pipeline
4 * Copyright (C) 2013-2015 Renesas Electronics Corporation
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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.
13 #ifndef __VSP1_PIPE_H__
14 #define __VSP1_PIPE_H__
16 #include <linux/kref.h>
17 #include <linux/list.h>
18 #include <linux/spinlock.h>
19 #include <linux/wait.h>
21 #include <media/media-entity.h>
27 * struct vsp1_format_info - VSP1 video format description
28 * @fourcc: V4L2 pixel format FCC identifier
29 * @mbus: media bus format code
30 * @hwfmt: VSP1 hardware format
31 * @swap: swap register control
32 * @planes: number of planes
33 * @bpp: bits per pixel
34 * @swap_yc: the Y and C components are swapped (Y comes before C)
35 * @swap_uv: the U and V components are swapped (V comes before U)
36 * @hsub: horizontal subsampling factor
37 * @vsub: vertical subsampling factor
38 * @alpha: has an alpha channel
40 struct vsp1_format_info {
54 enum vsp1_pipeline_state {
55 VSP1_PIPELINE_STOPPED,
56 VSP1_PIPELINE_RUNNING,
57 VSP1_PIPELINE_STOPPING,
61 * struct vsp1_pipeline - A VSP1 hardware pipeline
62 * @pipe: the media pipeline
63 * @irqlock: protects the pipeline state
64 * @state: current state
65 * @wq: wait queue to wait for state change completion
66 * @frame_end: frame end interrupt handler
67 * @lock: protects the pipeline use count and stream count
68 * @kref: pipeline reference count
69 * @stream_count: number of streaming video nodes
70 * @buffers_ready: bitmask of RPFs and WPFs with at least one buffer available
71 * @sequence: frame sequence number
72 * @num_inputs: number of RPFs
73 * @inputs: array of RPFs in the pipeline (indexed by RPF index)
74 * @output: WPF at the output of the pipeline
75 * @bru: BRU entity, if present
76 * @hgo: HGO entity, if present
77 * @lif: LIF entity, if present
78 * @uds: UDS entity, if present
79 * @uds_input: entity at the input of the UDS, if the UDS is present
80 * @entities: list of entities in the pipeline
81 * @dl: display list associated with the pipeline
82 * @div_size: The maximum allowed partition size for the pipeline
83 * @partitions: The number of partitions used to process one frame
84 * @current_partition: The partition number currently being configured
86 struct vsp1_pipeline {
87 struct media_pipeline pipe;
90 enum vsp1_pipeline_state state;
93 void (*frame_end)(struct vsp1_pipeline *pipe);
97 unsigned int stream_count;
98 unsigned int buffers_ready;
99 unsigned int sequence;
101 unsigned int num_inputs;
102 struct vsp1_rwpf *inputs[VSP1_MAX_RPF];
103 struct vsp1_rwpf *output;
104 struct vsp1_entity *bru;
105 struct vsp1_entity *hgo;
106 struct vsp1_entity *lif;
107 struct vsp1_entity *uds;
108 struct vsp1_entity *uds_input;
110 struct list_head entities;
112 struct vsp1_dl_list *dl;
114 unsigned int div_size;
115 unsigned int partitions;
116 struct v4l2_rect partition;
117 unsigned int current_partition;
120 void vsp1_pipeline_reset(struct vsp1_pipeline *pipe);
121 void vsp1_pipeline_init(struct vsp1_pipeline *pipe);
123 void vsp1_pipeline_run(struct vsp1_pipeline *pipe);
124 bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe);
125 int vsp1_pipeline_stop(struct vsp1_pipeline *pipe);
126 bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe);
128 void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe);
130 void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
131 struct vsp1_dl_list *dl, unsigned int alpha);
133 void vsp1_pipelines_suspend(struct vsp1_device *vsp1);
134 void vsp1_pipelines_resume(struct vsp1_device *vsp1);
136 const struct vsp1_format_info *vsp1_get_format_info(struct vsp1_device *vsp1,
139 #endif /* __VSP1_PIPE_H__ */