linux/include/linux/units.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_UNITS_H
#define _LINUX_UNITS_H

#include <linux/bits.h>
#include <linux/math.h>

/* Metric prefixes in accordance with Système international (d'unités) */
#define PETA …
#define TERA …
#define GIGA …
#define MEGA …
#define KILO …
#define HECTO …
#define DECA …
#define DECI …
#define CENTI …
#define MILLI …
#define MICRO …
#define NANO …
#define PICO …
#define FEMTO …

#define NANOHZ_PER_HZ …
#define MICROHZ_PER_HZ …
#define MILLIHZ_PER_HZ …

#define HZ_PER_KHZ …
#define HZ_PER_MHZ …

#define KHZ_PER_MHZ …
#define KHZ_PER_GHZ …

#define MILLIWATT_PER_WATT …
#define MICROWATT_PER_MILLIWATT …
#define MICROWATT_PER_WATT …

#define BYTES_PER_KBIT …
#define BYTES_PER_MBIT …
#define BYTES_PER_GBIT …

#define ABSOLUTE_ZERO_MILLICELSIUS …

static inline long milli_kelvin_to_millicelsius(long t)
{ … }

static inline long millicelsius_to_milli_kelvin(long t)
{ … }

#define MILLIDEGREE_PER_DEGREE …
#define MILLIDEGREE_PER_DECIDEGREE …

static inline long kelvin_to_millicelsius(long t)
{ … }

static inline long millicelsius_to_kelvin(long t)
{ … }

static inline long deci_kelvin_to_celsius(long t)
{ … }

static inline long celsius_to_deci_kelvin(long t)
{ … }

/**
 * deci_kelvin_to_millicelsius_with_offset - convert Kelvin to Celsius
 * @t: temperature value in decidegrees Kelvin
 * @offset: difference between Kelvin and Celsius in millidegrees
 *
 * Return: temperature value in millidegrees Celsius
 */
static inline long deci_kelvin_to_millicelsius_with_offset(long t, long offset)
{ … }

static inline long deci_kelvin_to_millicelsius(long t)
{ … }

static inline long millicelsius_to_deci_kelvin(long t)
{ … }

static inline long kelvin_to_celsius(long t)
{ … }

static inline long celsius_to_kelvin(long t)
{ … }

#endif /* _LINUX_UNITS_H */