linux/drivers/hwmon/ad7418.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * An hwmon driver for the Analog Devices AD7416/17/18
 * Copyright (C) 2006-07 Tower Technologies
 *
 * Author: Alessandro Zummo <[email protected]>
 *
 * Based on lm75.c
 * Copyright (C) 1998-99 Frodo Looijaard <[email protected]>
 */

#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/delay.h>
#include <linux/slab.h>

#include "lm75.h"

#define DRV_VERSION …

enum chips { … };

/* AD7418 registers */
#define AD7418_REG_TEMP_IN …
#define AD7418_REG_CONF …
#define AD7418_REG_TEMP_HYST …
#define AD7418_REG_TEMP_OS …
#define AD7418_REG_ADC …
#define AD7418_REG_CONF2 …

#define AD7418_REG_ADC_CH(x) …
#define AD7418_CH_TEMP …

static const u8 AD7418_REG_TEMP[] = …;

struct ad7418_data { … };

static int ad7418_update_device(struct device *dev)
{ … }

static ssize_t temp_show(struct device *dev, struct device_attribute *devattr,
			 char *buf)
{ … }

static ssize_t adc_show(struct device *dev, struct device_attribute *devattr,
			char *buf)
{ … }

static ssize_t temp_store(struct device *dev,
			  struct device_attribute *devattr, const char *buf,
			  size_t count)
{ … }

static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);
static SENSOR_DEVICE_ATTR_RW(temp1_max_hyst, temp, 1);
static SENSOR_DEVICE_ATTR_RW(temp1_max, temp, 2);

static SENSOR_DEVICE_ATTR_RO(in1_input, adc, 0);
static SENSOR_DEVICE_ATTR_RO(in2_input, adc, 1);
static SENSOR_DEVICE_ATTR_RO(in3_input, adc, 2);
static SENSOR_DEVICE_ATTR_RO(in4_input, adc, 3);

static struct attribute *ad7416_attrs[] = …;
ATTRIBUTE_GROUPS(…);

static struct attribute *ad7417_attrs[] = …;
ATTRIBUTE_GROUPS(…);

static struct attribute *ad7418_attrs[] = …;
ATTRIBUTE_GROUPS(…);

static void ad7418_init_client(struct i2c_client *client)
{ … }

static int ad7418_probe(struct i2c_client *client)
{ … }

static const struct i2c_device_id ad7418_id[] = …;
MODULE_DEVICE_TABLE(i2c, ad7418_id);

static const struct of_device_id ad7418_dt_ids[] = …;
MODULE_DEVICE_TABLE(of, ad7418_dt_ids);

static struct i2c_driver ad7418_driver = …;

module_i2c_driver(…) …;

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