/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2013--2024 Intel Corporation */

#ifndef IPU6_ISYS_SUBDEV_H
#define IPU6_ISYS_SUBDEV_H

#include <linux/container_of.h>

#include <media/media-entity.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>

struct ipu6_isys;

struct ipu6_isys_subdev {
	struct v4l2_subdev sd;
	struct ipu6_isys *isys;
	u32 const *supported_codes;
	struct media_pad *pad;
	struct v4l2_ctrl_handler ctrl_handler;
	void (*ctrl_init)(struct v4l2_subdev *sd);
	int source;	/* SSI stream source; -1 if unset */
};

#define to_ipu6_isys_subdev(__sd) \
	container_of(__sd, struct ipu6_isys_subdev, sd)

unsigned int ipu6_isys_mbus_code_to_bpp(u32 code);
unsigned int ipu6_isys_mbus_code_to_mipi(u32 code);
bool ipu6_isys_is_bayer_format(u32 code);
u32 ipu6_isys_convert_bayer_order(u32 code, int x, int y);

int ipu6_isys_subdev_set_fmt(struct v4l2_subdev *sd,
			     struct v4l2_subdev_state *state,
			     struct v4l2_subdev_format *fmt);
int ipu6_isys_subdev_enum_mbus_code(struct v4l2_subdev *sd,
				    struct v4l2_subdev_state *state,
				    struct v4l2_subdev_mbus_code_enum
				    *code);
int ipu6_isys_subdev_link_validate(struct v4l2_subdev *sd,
				   struct media_link *link,
				   struct v4l2_subdev_format *source_fmt,
				   struct v4l2_subdev_format *sink_fmt);
u32 ipu6_isys_get_src_stream_by_src_pad(struct v4l2_subdev *sd, u32 pad);
int ipu6_isys_get_stream_pad_fmt(struct v4l2_subdev *sd, u32 pad, u32 stream,
				 struct v4l2_mbus_framefmt *format);
int ipu6_isys_get_stream_pad_crop(struct v4l2_subdev *sd, u32 pad, u32 stream,
				  struct v4l2_rect *crop);
int ipu6_isys_subdev_set_routing(struct v4l2_subdev *sd,
				 struct v4l2_subdev_state *state,
				 enum v4l2_subdev_format_whence which,
				 struct v4l2_subdev_krouting *routing);
int ipu6_isys_subdev_init(struct ipu6_isys_subdev *asd,
			  const struct v4l2_subdev_ops *ops,
			  unsigned int nr_ctrls,
			  unsigned int num_sink_pads,
			  unsigned int num_source_pads);
void ipu6_isys_subdev_cleanup(struct ipu6_isys_subdev *asd);
#endif /* IPU6_ISYS_SUBDEV_H */