linux/drivers/media/i2c/bt866.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
    bt866 - BT866 Digital Video Encoder (Rockwell Part)

    Copyright (C) 1999 Mike Bernson <[email protected]>
    Copyright (C) 1998 Dave Perks <[email protected]>

    Modifications for LML33/DC10plus unified driver
    Copyright (C) 2000 Serguei Miridonov <[email protected]>

    This code was modify/ported from the saa7111 driver written
    by Dave Perks.

    This code was adapted for the bt866 by Christer Weinigel and ported
    to 2.6 by Martin Samuelsson.

*/

#include <linux/module.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/ioctl.h>
#include <linux/uaccess.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;

static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(…) …;


/* ----------------------------------------------------------------------- */

struct bt866 { … };

static inline struct bt866 *to_bt866(struct v4l2_subdev *sd)
{ … }

static int bt866_write(struct bt866 *encoder, u8 subaddr, u8 data)
{ … }

static int bt866_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
{ … }

static int bt866_s_routing(struct v4l2_subdev *sd,
			   u32 input, u32 output, u32 config)
{ … }

#if 0
/* Code to setup square pixels, might be of some use in the future,
   but is currently unused. */
	val = encoder->reg[0xdc];
	if (*iarg)
		val |= 1; /* SQUARE */
	else
		val &= ~1; /* !SQUARE */
	bt866_write(client, 0xdc, val);
#endif

/* ----------------------------------------------------------------------- */

static const struct v4l2_subdev_video_ops bt866_video_ops = …;

static const struct v4l2_subdev_ops bt866_ops = …;

static int bt866_probe(struct i2c_client *client)
{ … }

static void bt866_remove(struct i2c_client *client)
{ … }

static const struct i2c_device_id bt866_id[] = …;
MODULE_DEVICE_TABLE(i2c, bt866_id);

static struct i2c_driver bt866_driver = …;

module_i2c_driver(…) …;