linux/drivers/media/i2c/cs5345.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * cs5345 Cirrus Logic 24-bit, 192 kHz Stereo Audio ADC
 * Copyright (C) 2007 Hans Verkuil
 */


#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <linux/slab.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 cs5345_state { … };

static inline struct cs5345_state *to_state(struct v4l2_subdev *sd)
{ … }

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

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

static inline int cs5345_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{ … }

static inline int cs5345_read(struct v4l2_subdev *sd, u8 reg)
{ … }

static int cs5345_s_routing(struct v4l2_subdev *sd,
			    u32 input, u32 output, u32 config)
{ … }

static int cs5345_s_ctrl(struct v4l2_ctrl *ctrl)
{ … }

#ifdef CONFIG_VIDEO_ADV_DEBUG
static int cs5345_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
{ … }

static int cs5345_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
{ … }
#endif

static int cs5345_log_status(struct v4l2_subdev *sd)
{ … }

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

static const struct v4l2_ctrl_ops cs5345_ctrl_ops = …;

static const struct v4l2_subdev_core_ops cs5345_core_ops = …;

static const struct v4l2_subdev_audio_ops cs5345_audio_ops = …;

static const struct v4l2_subdev_ops cs5345_ops = …;

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

static int cs5345_probe(struct i2c_client *client)
{ … }

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

static void cs5345_remove(struct i2c_client *client)
{ … }

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

static const struct i2c_device_id cs5345_id[] = …;
MODULE_DEVICE_TABLE(i2c, cs5345_id);

static struct i2c_driver cs5345_driver = …;

module_i2c_driver(…) …;