mirror of https://gitee.com/openkylin/linux.git
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/*
|
|
* vsp1_histo.h -- R-Car VSP1 Histogram API
|
|
*
|
|
* Copyright (C) 2016 Renesas Electronics Corporation
|
|
* Copyright (C) 2016 Laurent Pinchart
|
|
*
|
|
* 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_HISTO_H__
|
|
#define __VSP1_HISTO_H__
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/spinlock.h>
|
|
|
|
#include <media/media-entity.h>
|
|
#include <media/v4l2-dev.h>
|
|
#include <media/videobuf2-v4l2.h>
|
|
|
|
#include "vsp1_entity.h"
|
|
|
|
struct vsp1_device;
|
|
struct vsp1_pipeline;
|
|
|
|
#define HISTO_PAD_SINK 0
|
|
#define HISTO_PAD_SOURCE 1
|
|
|
|
struct vsp1_histogram_buffer {
|
|
struct vb2_v4l2_buffer buf;
|
|
struct list_head queue;
|
|
void *addr;
|
|
};
|
|
|
|
struct vsp1_histogram {
|
|
struct vsp1_pipeline *pipe;
|
|
|
|
struct vsp1_entity entity;
|
|
struct video_device video;
|
|
struct media_pad pad;
|
|
|
|
const u32 *formats;
|
|
unsigned int num_formats;
|
|
size_t data_size;
|
|
u32 meta_format;
|
|
|
|
struct mutex lock;
|
|
struct vb2_queue queue;
|
|
|
|
spinlock_t irqlock;
|
|
struct list_head irqqueue;
|
|
|
|
wait_queue_head_t wait_queue;
|
|
bool readout;
|
|
};
|
|
|
|
static inline struct vsp1_histogram *vdev_to_histo(struct video_device *vdev)
|
|
{
|
|
return container_of(vdev, struct vsp1_histogram, video);
|
|
}
|
|
|
|
static inline struct vsp1_histogram *subdev_to_histo(struct v4l2_subdev *subdev)
|
|
{
|
|
return container_of(subdev, struct vsp1_histogram, entity.subdev);
|
|
}
|
|
|
|
int vsp1_histogram_init(struct vsp1_device *vsp1, struct vsp1_histogram *histo,
|
|
enum vsp1_entity_type type, const char *name,
|
|
const struct vsp1_entity_operations *ops,
|
|
const unsigned int *formats, unsigned int num_formats,
|
|
size_t data_size, u32 meta_format);
|
|
void vsp1_histogram_destroy(struct vsp1_entity *entity);
|
|
|
|
struct vsp1_histogram_buffer *
|
|
vsp1_histogram_buffer_get(struct vsp1_histogram *histo);
|
|
void vsp1_histogram_buffer_complete(struct vsp1_histogram *histo,
|
|
struct vsp1_histogram_buffer *buf,
|
|
size_t size);
|
|
|
|
#endif /* __VSP1_HISTO_H__ */
|