128 строки
3.5 KiB
C
128 строки
3.5 KiB
C
/*
|
|
* 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/kref.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
|
|
* @kref: pipeline reference count
|
|
* @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;
|
|
struct kref kref;
|
|
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__ */
|