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c2dd2513ea
This clarifies the API and prepares display list support for being used to implement the request API. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
134 lines
3.7 KiB
C
134 lines
3.7 KiB
C
/*
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* vsp1_pipe.h -- R-Car VSP1 Pipeline
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*
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* Copyright (C) 2013-2015 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __VSP1_PIPE_H__
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#define __VSP1_PIPE_H__
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/wait.h>
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#include <media/media-entity.h>
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struct vsp1_dl_list;
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struct vsp1_rwpf;
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/*
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* struct vsp1_format_info - VSP1 video format description
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* @mbus: media bus format code
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* @fourcc: V4L2 pixel format FCC identifier
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* @planes: number of planes
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* @bpp: bits per pixel
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* @hwfmt: VSP1 hardware format
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* @swap_yc: the Y and C components are swapped (Y comes before C)
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* @swap_uv: the U and V components are swapped (V comes before U)
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* @hsub: horizontal subsampling factor
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* @vsub: vertical subsampling factor
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* @alpha: has an alpha channel
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*/
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struct vsp1_format_info {
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u32 fourcc;
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unsigned int mbus;
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unsigned int hwfmt;
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unsigned int swap;
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unsigned int planes;
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unsigned int bpp[3];
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bool swap_yc;
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bool swap_uv;
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unsigned int hsub;
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unsigned int vsub;
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bool alpha;
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};
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enum vsp1_pipeline_state {
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VSP1_PIPELINE_STOPPED,
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VSP1_PIPELINE_RUNNING,
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VSP1_PIPELINE_STOPPING,
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};
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/*
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* struct vsp1_pipeline - A VSP1 hardware pipeline
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* @pipe: the media pipeline
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* @irqlock: protects the pipeline state
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* @state: current state
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* @wq: work queue to wait for state change completion
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* @frame_end: frame end interrupt handler
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* @lock: protects the pipeline use count and stream count
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* @use_count: number of video nodes using the pipeline
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* @stream_count: number of streaming video nodes
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* @buffers_ready: bitmask of RPFs and WPFs with at least one buffer available
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* @num_inputs: number of RPFs
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* @inputs: array of RPFs in the pipeline (indexed by RPF index)
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* @output: WPF at the output of the pipeline
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* @bru: BRU entity, if present
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* @lif: LIF entity, if present
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* @uds: UDS entity, if present
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* @uds_input: entity at the input of the UDS, if the UDS is present
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* @entities: list of entities in the pipeline
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* @dl: display list associated with the pipeline
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*/
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struct vsp1_pipeline {
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struct media_pipeline pipe;
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spinlock_t irqlock;
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enum vsp1_pipeline_state state;
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wait_queue_head_t wq;
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void (*frame_end)(struct vsp1_pipeline *pipe);
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struct mutex lock;
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unsigned int use_count;
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unsigned int stream_count;
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unsigned int buffers_ready;
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unsigned int num_inputs;
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struct vsp1_rwpf *inputs[VSP1_MAX_RPF];
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struct vsp1_rwpf *output;
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struct vsp1_entity *bru;
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struct vsp1_entity *lif;
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struct vsp1_entity *uds;
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struct vsp1_entity *uds_input;
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struct list_head entities;
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struct vsp1_dl_list *dl;
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};
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static inline struct vsp1_pipeline *to_vsp1_pipeline(struct media_entity *e)
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{
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if (likely(e->pipe))
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return container_of(e->pipe, struct vsp1_pipeline, pipe);
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else
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return NULL;
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}
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void vsp1_pipeline_reset(struct vsp1_pipeline *pipe);
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void vsp1_pipeline_init(struct vsp1_pipeline *pipe);
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void vsp1_pipeline_run(struct vsp1_pipeline *pipe);
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bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe);
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int vsp1_pipeline_stop(struct vsp1_pipeline *pipe);
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bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe);
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void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe);
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void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
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struct vsp1_entity *input,
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unsigned int alpha);
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void vsp1_pipelines_suspend(struct vsp1_device *vsp1);
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void vsp1_pipelines_resume(struct vsp1_device *vsp1);
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const struct vsp1_format_info *vsp1_get_format_info(u32 fourcc);
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#endif /* __VSP1_PIPE_H__ */
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