Files
rt-thread/components/ktime/src/boottime.c
T
xqyjlj d23dd56692 🐞 fix(ktime): fix wrong boottime
因为tick从中断到设置中间的时延特别大,因此暂不采用tick做基准时间,直接取gtime的cnt做基准时间
2023-07-27 11:35:29 +08:00

49 lines
1.2 KiB
C

/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-07-10 xqyjlj The first version.
*/
#include "ktime.h"
#define __KTIME_MUL ((1000UL * 1000 * 1000) / RT_TICK_PER_SECOND)
rt_weak rt_err_t rt_ktime_boottime_get_us(struct timeval *tv)
{
RT_ASSERT(tv != RT_NULL);
unsigned long ns = (rt_ktime_cputimer_getcnt() * rt_ktime_cputimer_getres()) / RT_KTIME_RESMUL;
tv->tv_sec = ns / (1000UL * 1000 * 1000);
tv->tv_usec = (ns % (1000UL * 1000 * 1000)) / 1000;
return RT_EOK;
}
rt_weak rt_err_t rt_ktime_boottime_get_s(time_t *t)
{
RT_ASSERT(t != RT_NULL);
unsigned long ns = (rt_ktime_cputimer_getcnt() * rt_ktime_cputimer_getres()) / RT_KTIME_RESMUL;
*t = ns / (1000UL * 1000 * 1000);
return RT_EOK;
}
rt_weak rt_err_t rt_ktime_boottime_get_ns(struct timespec *ts)
{
RT_ASSERT(ts != RT_NULL);
unsigned long ns = (rt_ktime_cputimer_getcnt() * rt_ktime_cputimer_getres()) / RT_KTIME_RESMUL;
ts->tv_sec = ns / (1000UL * 1000 * 1000);
ts->tv_nsec = ns % (1000UL * 1000 * 1000);
return RT_EOK;
}