linux/drivers/media/i2c/s5k6a3.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Samsung S5K6A3 image sensor driver
 *
 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
 * Author: Sylwester Nawrocki <[email protected]>
 */

#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <media/v4l2-async.h>
#include <media/v4l2-subdev.h>

#define S5K6A3_SENSOR_MAX_WIDTH …
#define S5K6A3_SENSOR_MAX_HEIGHT …
#define S5K6A3_SENSOR_MIN_WIDTH …
#define S5K6A3_SENSOR_MIN_HEIGHT …

#define S5K6A3_DEFAULT_WIDTH …
#define S5K6A3_DEFAULT_HEIGHT …

#define S5K6A3_DRV_NAME …
#define S5K6A3_CLK_NAME …
#define S5K6A3_DEFAULT_CLK_FREQ …

enum { … };

/**
 * struct s5k6a3 - fimc-is sensor data structure
 * @dev: pointer to this I2C client device structure
 * @subdev: the image sensor's v4l2 subdev
 * @pad: subdev media source pad
 * @supplies: image sensor's voltage regulator supplies
 * @gpio_reset: GPIO connected to the sensor's reset pin
 * @lock: mutex protecting the structure's members below
 * @format: media bus format at the sensor's source pad
 * @clock: pointer to &struct clk.
 * @clock_frequency: clock frequency
 * @power_count: stores state if device is powered
 */
struct s5k6a3 { … };

static const char * const s5k6a3_supply_names[] = …;

static inline struct s5k6a3 *sd_to_s5k6a3(struct v4l2_subdev *sd)
{ … }

static const struct v4l2_mbus_framefmt s5k6a3_formats[] = …;

static const struct v4l2_mbus_framefmt *find_sensor_format(
	struct v4l2_mbus_framefmt *mf)
{ … }

static int s5k6a3_enum_mbus_code(struct v4l2_subdev *sd,
				  struct v4l2_subdev_state *sd_state,
				  struct v4l2_subdev_mbus_code_enum *code)
{ … }

static void s5k6a3_try_format(struct v4l2_mbus_framefmt *mf)
{ … }

static struct v4l2_mbus_framefmt *__s5k6a3_get_format(
		struct s5k6a3 *sensor, struct v4l2_subdev_state *sd_state,
		u32 pad, enum v4l2_subdev_format_whence which)
{ … }

static int s5k6a3_set_fmt(struct v4l2_subdev *sd,
				  struct v4l2_subdev_state *sd_state,
				  struct v4l2_subdev_format *fmt)
{ … }

static int s5k6a3_get_fmt(struct v4l2_subdev *sd,
			  struct v4l2_subdev_state *sd_state,
			  struct v4l2_subdev_format *fmt)
{ … }

static const struct v4l2_subdev_pad_ops s5k6a3_pad_ops = …;

static int s5k6a3_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{ … }

static const struct v4l2_subdev_internal_ops s5k6a3_sd_internal_ops = …;

static int __s5k6a3_power_on(struct s5k6a3 *sensor)
{ … }

static int __s5k6a3_power_off(struct s5k6a3 *sensor)
{ … }

static int s5k6a3_s_power(struct v4l2_subdev *sd, int on)
{ … }

static const struct v4l2_subdev_core_ops s5k6a3_core_ops = …;

static const struct v4l2_subdev_ops s5k6a3_subdev_ops = …;

static int s5k6a3_probe(struct i2c_client *client)
{ … }

static void s5k6a3_remove(struct i2c_client *client)
{ … }

static const struct i2c_device_id s5k6a3_ids[] = …;
MODULE_DEVICE_TABLE(i2c, s5k6a3_ids);

#ifdef CONFIG_OF
static const struct of_device_id s5k6a3_of_match[] = …;
MODULE_DEVICE_TABLE(of, s5k6a3_of_match);
#endif

static struct i2c_driver s5k6a3_driver = …;

module_i2c_driver(…) …;

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