linux/drivers/media/i2c/cs53l32a.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * cs53l32a (Adaptec AVC-2010 and AVC-2410) i2c ivtv driver.
 * Copyright (C) 2005  Martin Vaughan
 *
 * Audio source switching for Adaptec AVC-2410 added by Trev Jackson
 */


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

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

static bool debug;

module_param(debug, bool, 0644);

MODULE_PARM_DESC(…) …;


struct cs53l32a_state { … };

static inline struct cs53l32a_state *to_state(struct v4l2_subdev *sd)
{ … }

static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{ … }

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

static int cs53l32a_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{ … }

static int cs53l32a_read(struct v4l2_subdev *sd, u8 reg)
{ … }

static int cs53l32a_s_routing(struct v4l2_subdev *sd,
			      u32 input, u32 output, u32 config)
{ … }

static int cs53l32a_s_ctrl(struct v4l2_ctrl *ctrl)
{ … }

static int cs53l32a_log_status(struct v4l2_subdev *sd)
{ … }

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

static const struct v4l2_ctrl_ops cs53l32a_ctrl_ops = …;

static const struct v4l2_subdev_core_ops cs53l32a_core_ops = …;

static const struct v4l2_subdev_audio_ops cs53l32a_audio_ops = …;

static const struct v4l2_subdev_ops cs53l32a_ops = …;

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

/* i2c implementation */

/*
 * Generic i2c probe
 * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
 */

static int cs53l32a_probe(struct i2c_client *client)
{ … }

static void cs53l32a_remove(struct i2c_client *client)
{ … }

static const struct i2c_device_id cs53l32a_id[] = …;
MODULE_DEVICE_TABLE(i2c, cs53l32a_id);

static struct i2c_driver cs53l32a_driver = …;

module_i2c_driver(…) …;