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 
8 static unsigned long __offset;
9 static struct timeval __tv;
10 
uptimeofday_init(void)11 int 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 
getuptimeofday_ms(void)25 unsigned long getuptimeofday_ms(void)
26 {
27 	gettimeofday(&__tv, NULL);
28 
29 	return ((__tv.tv_sec - __offset) * 1000) + (__tv.tv_usec / 1000);
30 }
31 
msec_to_timespec(int msec)32 struct 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