/* SPDX-License-Identifier: GPL-2.0+ */
/*
* vsp1_pipe . h - - R - Car VSP1 Pipeline
*
* Copyright ( C ) 2013 - 2015 Renesas Electronics Corporation
*
* Contact : Laurent Pinchart ( laurent . pinchart @ ideasonboard . com )
*/
#ifndef __VSP1_PIPE_H__
#define __VSP1_PIPE_H__
#include <linux/dynamic_debug.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
* @ fourcc : V4L2 pixel format FCC identifier
* @ mbus : media bus format code
* @ hwfmt : VSP1 hardware format
* @ swap : swap register control
* @ planes : number of planes
* @ bpp : bits per pixel
* @ 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_partition - A description of a slice for the partition algorithm
* @ rpf : The RPF partition window configuration
* @ uds_sink : The UDS input partition window configuration
* @ uds_source : The UDS output partition window configuration
* @ sru : The SRU partition window configuration
* @ wpf : The WPF partition window configuration
*/
struct vsp1_partition {
struct v4l2_rect rpf[VSP1_MAX_RPF];
struct v4l2_rect uds_sink;
struct v4l2_rect uds_source;
struct v4l2_rect sru;
struct v4l2_rect wpf;
};
/*
* struct vsp1_pipeline - A VSP1 hardware pipeline
* @ pipe : the media pipeline
* @ irqlock : protects the pipeline state
* @ state : current state
* @ wq : wait 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
* @ sequence : frame sequence number
* @ num_inputs : number of RPFs
* @ inputs : array of RPFs in the pipeline ( indexed by RPF index )
* @ output : WPF at the output of the pipeline
* @ brx : BRx entity , if present
* @ hgo : HGO entity , if present
* @ hgt : HGT 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
* @ stream_config : cached stream configuration for video pipelines
* @ configured : when false the @ stream_config shall be written to the hardware
* @ interlaced : True when the pipeline is configured in interlaced mode
* @ partitions : The number of partitions used to process one frame
* @ part_table : The pre - calculated partitions used by 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, unsigned int completion);
struct mutex lock;
struct kref kref;
unsigned int stream_count;
unsigned int buffers_ready;
unsigned int sequence;
unsigned int num_inputs;
struct vsp1_rwpf *inputs[VSP1_MAX_RPF];
struct vsp1_rwpf *output;
struct vsp1_entity *brx;
struct vsp1_entity *hgo;
struct vsp1_entity *hgt;
struct vsp1_entity *iif;
struct vsp1_entity *lif;
struct vsp1_entity *uds;
struct vsp1_entity *uds_input;
/*
* The order of this list must be identical to the order of the entities
* in the pipeline , as it is assumed by the partition algorithm that we
* can walk this list in sequence .
*/
struct list_head entities;
struct vsp1_dl_body *stream_config;
bool configured;
bool interlaced;
unsigned int partitions;
struct vsp1_partition *part_table;
u32 underrun_count;
};
void vsp1_pipeline_reset(struct vsp1_pipeline *pipe);
void vsp1_pipeline_init(struct vsp1_pipeline *pipe);
void __vsp1_pipeline_dump(struct _ddebug *, struct vsp1_pipeline *pipe,
const char *msg);
#if defined (CONFIG_DYNAMIC_DEBUG) || \
(defined (CONFIG_DYNAMIC_DEBUG_CORE) && defined (DYNAMIC_DEBUG_MODULE))
#define vsp1_pipeline_dump(pipe, msg) \
_dynamic_func_call("vsp1_pipeline_dump()" , __vsp1_pipeline_dump, pipe, msg)
#elif defined (DEBUG)
#define vsp1_pipeline_dump(pipe, msg) \
__vsp1_pipeline_dump(NULL, pipe, msg)
#else
#define vsp1_pipeline_dump(pipe, msg) \
({ \
if (0 ) \
__vsp1_pipeline_dump(NULL, pipe, msg); \
})
#endif
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_dl_body *dlb,
unsigned int alpha);
void vsp1_pipeline_calculate_partition(struct vsp1_pipeline *pipe,
struct vsp1_partition *partition,
unsigned int div_size,
unsigned int index);
const struct vsp1_format_info *vsp1_get_format_info(struct vsp1_device *vsp1,
u32 fourcc);
const struct vsp1_format_info *
vsp1_get_format_info_by_index(struct vsp1_device *vsp1, unsigned int index,
u32 code);
void vsp1_adjust_color_space(u32 code, u32 *colorspace, u8 *xfer_func,
u8 *encoding, u8 *quantization);
#endif /* __VSP1_PIPE_H__ */
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(vorverarbeitet am 2026-10-11)
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