linux/drivers/staging/media/omap4iss/iss_video.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * TI OMAP4 ISS V4L2 Driver - Generic video node
 *
 * Copyright (C) 2012 Texas Instruments, Inc.
 *
 * Author: Sergio Aguirre <[email protected]>
 */

#ifndef OMAP4_ISS_VIDEO_H
#define OMAP4_ISS_VIDEO_H

#include <linux/v4l2-mediabus.h>
#include <media/media-entity.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-fh.h>
#include <media/videobuf2-v4l2.h>
#include <media/videobuf2-dma-contig.h>

#define ISS_VIDEO_DRIVER_NAME …

struct iss_device;
struct iss_video;
struct v4l2_mbus_framefmt;
struct v4l2_pix_format;

/*
 * struct iss_format_info - ISS media bus format information
 * @code: V4L2 media bus format code
 * @truncated: V4L2 media bus format code for the same format truncated to 10
 *	bits. Identical to @code if the format is 10 bits wide or less.
 * @uncompressed: V4L2 media bus format code for the corresponding uncompressed
 *	format. Identical to @code if the format is not DPCM compressed.
 * @flavor: V4L2 media bus format code for the same pixel layout but
 *	shifted to be 8 bits per pixel. =0 if format is not shiftable.
 * @pixelformat: V4L2 pixel format FCC identifier
 * @bpp: Bits per pixel
 */
struct iss_format_info { … };

enum iss_pipeline_stream_state { … };

enum iss_pipeline_state { … };

/*
 * struct iss_pipeline - An OMAP4 ISS hardware pipeline
 * @ent_enum: Entities in the pipeline
 * @error: A hardware error occurred during capture
 */
struct iss_pipeline { … };

static inline struct iss_pipeline *to_iss_pipeline(struct media_entity *entity)
{ … }

static inline int iss_pipeline_ready(struct iss_pipeline *pipe)
{ … }

/*
 * struct iss_buffer - ISS buffer
 * @buffer: ISS video buffer
 * @iss_addr: Physical address of the buffer.
 */
struct iss_buffer { … };

#define to_iss_buffer(buf) …

enum iss_video_dmaqueue_flags { … };

#define iss_video_dmaqueue_flags_clr(video) …

/*
 * struct iss_video_operations - ISS video operations
 * @queue:	Resume streaming when a buffer is queued. Called on VIDIOC_QBUF
 *		if there was no buffer previously queued.
 */
struct iss_video_operations { … };

struct iss_video { … };

#define to_iss_video(vdev) …

struct iss_video_fh { … };

#define to_iss_video_fh(fh) …
#define iss_video_queue_to_iss_video_fh(q) …

int omap4iss_video_init(struct iss_video *video, const char *name);
void omap4iss_video_cleanup(struct iss_video *video);
int omap4iss_video_register(struct iss_video *video,
			    struct v4l2_device *vdev);
void omap4iss_video_unregister(struct iss_video *video);
struct iss_buffer *omap4iss_video_buffer_next(struct iss_video *video);
void omap4iss_video_cancel_stream(struct iss_video *video);
struct media_pad *omap4iss_video_remote_pad(struct iss_video *video);

const struct iss_format_info *
omap4iss_video_format_info(u32 code);

#endif /* OMAP4_ISS_VIDEO_H */