rkcif-stream.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Rockchip Camera Interface (CIF) Driver
 4 *
 5 * Abstraction for the DMA part and the ping-pong scheme (a double-buffering
 6 * mechanism) of the different CIF variants.
 7 * Each stream is represented as V4L2 device whose corresponding media entity
 8 * has one sink pad.
 9 * The sink pad is connected to an instance of the INTERFACE/CROP abstraction
10 * in rkcif-interface.c.
11 *
12 * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
13 * Copyright (C) 2025 Collabora, Ltd.
14 */
15
16#ifndef _RKCIF_STREAM_H
17#define _RKCIF_STREAM_H
18
19#include "rkcif-common.h"
20
21void rkcif_stream_pingpong(struct rkcif_stream *stream);
22
23int rkcif_stream_register(struct rkcif_device *rkcif,
24			  struct rkcif_stream *stream);
25
26void rkcif_stream_unregister(struct rkcif_stream *stream);
27
28const struct rkcif_output_fmt *
29rkcif_stream_find_output_fmt(struct rkcif_stream *stream, bool ret_def,
30			     u32 pixelfmt);
31
32#endif