linux/drivers/hwmon/menf21bmc_hwmon.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  MEN 14F021P00 Board Management Controller (BMC) hwmon driver.
 *
 *  This is the core hwmon driver of the MEN 14F021P00 BMC.
 *  The BMC monitors the board voltages which can be access with this
 *  driver through sysfs.
 *
 *  Copyright (C) 2014 MEN Mikro Elektronik Nuernberg GmbH
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/jiffies.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/err.h>

#define DRV_NAME …

#define BMC_VOLT_COUNT …
#define MENF21BMC_V33 …
#define MENF21BMC_V5 …
#define MENF21BMC_V12 …
#define MENF21BMC_V5_SB …
#define MENF21BMC_VBAT …

#define IDX_TO_VOLT_MIN_CMD(idx) …
#define IDX_TO_VOLT_MAX_CMD(idx) …
#define IDX_TO_VOLT_INP_CMD(idx) …

struct menf21bmc_hwmon { … };

static const char *const input_names[] = …;

static struct menf21bmc_hwmon *menf21bmc_hwmon_update(struct device *dev)
{ … }

static int menf21bmc_hwmon_get_volt_limits(struct menf21bmc_hwmon *drv_data)
{ … }

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

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

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

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

static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0);
static SENSOR_DEVICE_ATTR_RO(in0_min, min, 0);
static SENSOR_DEVICE_ATTR_RO(in0_max, max, 0);
static SENSOR_DEVICE_ATTR_RO(in0_label, label, 0);
static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1);
static SENSOR_DEVICE_ATTR_RO(in1_min, min, 1);
static SENSOR_DEVICE_ATTR_RO(in1_max, max, 1);
static SENSOR_DEVICE_ATTR_RO(in1_label, label, 1);
static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2);
static SENSOR_DEVICE_ATTR_RO(in2_min, min, 2);
static SENSOR_DEVICE_ATTR_RO(in2_max, max, 2);
static SENSOR_DEVICE_ATTR_RO(in2_label, label, 2);
static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3);
static SENSOR_DEVICE_ATTR_RO(in3_min, min, 3);
static SENSOR_DEVICE_ATTR_RO(in3_max, max, 3);
static SENSOR_DEVICE_ATTR_RO(in3_label, label, 3);
static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4);
static SENSOR_DEVICE_ATTR_RO(in4_min, min, 4);
static SENSOR_DEVICE_ATTR_RO(in4_max, max, 4);
static SENSOR_DEVICE_ATTR_RO(in4_label, label, 4);

static struct attribute *menf21bmc_hwmon_attrs[] = …;

ATTRIBUTE_GROUPS(…);

static int menf21bmc_hwmon_probe(struct platform_device *pdev)
{ … }

static struct platform_driver menf21bmc_hwmon = …;

module_platform_driver(…) …;

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