linux/drivers/iio/light/veml6075.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Vishay VEML6075 UVA and UVB light sensor
 *
 * Copyright 2023 Javier Carrasco <[email protected]>
 *
 * 7-bit I2C slave, address 0x10
 */

#include <linux/bitfield.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/regmap.h>
#include <linux/units.h>

#include <linux/iio/iio.h>

#define VEML6075_CMD_CONF …
#define VEML6075_CMD_UVA …
#define VEML6075_CMD_UVB …
#define VEML6075_CMD_COMP1 …
#define VEML6075_CMD_COMP2 …
#define VEML6075_CMD_ID …

#define VEML6075_CONF_IT …
#define VEML6075_CONF_HD …
#define VEML6075_CONF_TRIG …
#define VEML6075_CONF_AF …
#define VEML6075_CONF_SD …

#define VEML6075_IT_50_MS …
#define VEML6075_IT_100_MS …
#define VEML6075_IT_200_MS …
#define VEML6075_IT_400_MS …
#define VEML6075_IT_800_MS …

#define VEML6075_AF_DISABLE …
#define VEML6075_AF_ENABLE …

#define VEML6075_SD_DISABLE …
#define VEML6075_SD_ENABLE …

/* Open-air coefficients and responsivity */
#define VEML6075_A_COEF …
#define VEML6075_B_COEF …
#define VEML6075_C_COEF …
#define VEML6075_D_COEF …
#define VEML6075_UVA_RESP …
#define VEML6075_UVB_RESP …

static const int veml6075_it_ms[] = …;

struct veml6075_data { … };

/* channel number */
enum veml6075_chan { … };

static const struct iio_chan_spec veml6075_channels[] = …;

static int veml6075_request_measurement(struct veml6075_data *data)
{ … }

static int veml6075_uva_comp(int raw_uva, int comp1, int comp2)
{ … }

static int veml6075_uvb_comp(int raw_uvb, int comp1, int comp2)
{ … }

static int veml6075_read_comp(struct veml6075_data *data, int *c1, int *c2)
{ … }

static int veml6075_read_uv_direct(struct veml6075_data *data, int chan,
				   int *val)
{ … }

static int veml6075_read_int_time_index(struct veml6075_data *data)
{ … }

static int veml6075_read_int_time_ms(struct veml6075_data *data, int *val)
{ … }

static int veml6075_get_uvi_micro(struct veml6075_data *data, int uva_comp,
				  int uvb_comp)
{ … }

static int veml6075_read_uvi(struct veml6075_data *data, int *val, int *val2)
{ … }

static int veml6075_read_responsivity(int chan, int *val, int *val2)
{ … }

static int veml6075_read_avail(struct iio_dev *indio_dev,
			       struct iio_chan_spec const *chan,
			       const int **vals, int *type, int *length,
			       long mask)
{ … }

static int veml6075_read_raw(struct iio_dev *indio_dev,
			     struct iio_chan_spec const *chan,
			     int *val, int *val2, long mask)
{ … }

static int veml6075_write_int_time_ms(struct veml6075_data *data, int val)
{ … }

static int veml6075_write_raw(struct iio_dev *indio_dev,
			      struct iio_chan_spec const *chan,
			      int val, int val2, long mask)
{ … }

static const struct iio_info veml6075_info = …;

static bool veml6075_readable_reg(struct device *dev, unsigned int reg)
{ … }

static bool veml6075_writable_reg(struct device *dev, unsigned int reg)
{ … }

static const struct regmap_config veml6075_regmap_config = …;

static int veml6075_probe(struct i2c_client *client)
{ … }

static const struct i2c_device_id veml6075_id[] = …;
MODULE_DEVICE_TABLE(i2c, veml6075_id);

static const struct of_device_id veml6075_of_match[] = …;
MODULE_DEVICE_TABLE(of, veml6075_of_match);

static struct i2c_driver veml6075_driver = …;

module_i2c_driver(…) …;

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