1 /*
2  * Copyright (c) 2006-2023, RT-Thread Development Team
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  *
6  * Change Logs:
7  * Date           Author       Notes
8  * 2023-07-10     xqyjlj       The first version.
9  */
10 
11 #include "gtimer.h"
12 #include "ktime.h"
13 
14 static volatile unsigned long _init_cnt = 0;
15 
rt_ktime_cputimer_getres(void)16 rt_uint64_t rt_ktime_cputimer_getres(void)
17 {
18     return ((1000ULL * 1000 * 1000) * RT_KTIME_RESMUL) / rt_hw_get_gtimer_frq();
19 }
20 
rt_ktime_cputimer_getfrq(void)21 unsigned long rt_ktime_cputimer_getfrq(void)
22 {
23     return rt_hw_get_gtimer_frq();
24 }
25 
rt_ktime_cputimer_getcnt(void)26 unsigned long rt_ktime_cputimer_getcnt(void)
27 {
28     return rt_hw_get_cntpct_val() - _init_cnt;
29 }
30 
rt_ktime_cputimer_getstep(void)31 unsigned long rt_ktime_cputimer_getstep(void)
32 {
33     return rt_ktime_cputimer_getfrq() / RT_TICK_PER_SECOND;
34 }
35 
rt_ktime_cputimer_init(void)36 void rt_ktime_cputimer_init(void)
37 {
38     _init_cnt = rt_hw_get_cntpct_val();
39 }
40