linux/drivers/media/i2c/tda9840.c

// SPDX-License-Identifier: GPL-2.0-or-later
 /*
    tda9840 - i2c-driver for the tda9840 by SGS Thomson

    Copyright (C) 1998-2003 Michael Hunold <[email protected]>
    Copyright (C) 2008 Hans Verkuil <[email protected]>

    The tda9840 is a stereo/dual sound processor with digital
    identification. It can be found at address 0x84 on the i2c-bus.

    For detailed information download the specifications directly
    from SGS Thomson at http://www.st.com

  */


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

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

static int debug;
module_param(debug, int, 0644);

MODULE_PARM_DESC(…) …;

#define SWITCH …
#define LEVEL_ADJUST …
#define STEREO_ADJUST …
#define TEST …

#define TDA9840_SET_MUTE …
#define TDA9840_SET_MONO …
#define TDA9840_SET_STEREO …
#define TDA9840_SET_LANG1 …
#define TDA9840_SET_LANG2 …
#define TDA9840_SET_BOTH …
#define TDA9840_SET_BOTH_R …
#define TDA9840_SET_EXTERNAL …


static void tda9840_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{ … }

static int tda9840_status(struct v4l2_subdev *sd)
{ … }

static int tda9840_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *t)
{ … }

static int tda9840_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *t)
{ … }

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

static const struct v4l2_subdev_tuner_ops tda9840_tuner_ops = …;

static const struct v4l2_subdev_ops tda9840_ops = …;

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

static int tda9840_probe(struct i2c_client *client)
{ … }

static void tda9840_remove(struct i2c_client *client)
{ … }

static const struct i2c_device_id tda9840_id[] = …;
MODULE_DEVICE_TABLE(i2c, tda9840_id);

static struct i2c_driver tda9840_driver = …;

module_i2c_driver(…) …;