1// SPDX-License-Identifier: LGPL-2.1+
2// Copyright (C) 2022, Linaro Ltd - Daniel Lezcano <daniel.lezcano@linaro.org>
3#include <stdio.h>
4#include <sys/time.h>
5#include <linux/sysinfo.h>
6#include "thermal-tools.h"
7
8static unsigned long __offset;
9static struct timeval __tv;
10
11int uptimeofday_init(void)
12{
13	struct sysinfo info;
14
15	if (sysinfo(&info))
16		return -1;
17
18	gettimeofday(&__tv, NULL);
19
20	__offset = __tv.tv_sec - info.uptime;
21
22	return 0;
23}
24
25unsigned long getuptimeofday_ms(void)
26{
27	gettimeofday(&__tv, NULL);
28
29	return ((__tv.tv_sec - __offset) * 1000) + (__tv.tv_usec / 1000);
30}
31
32struct timespec msec_to_timespec(int msec)
33{
34	struct timespec tv = {
35		.tv_sec = (msec / 1000),
36		.tv_nsec = (msec % 1000) * 1000000,
37	};
38
39	return tv;
40}
41