1324 lines
34 KiB
C
1324 lines
34 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-08-21 zhangjun copy from minilibc
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* 2020-09-07 Meco Man combine gcc armcc iccarm
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* 2021-02-05 Meco Man add timegm()
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* 2021-02-07 Meco Man fixed gettimeofday()
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* 2021-02-08 Meco Man add settimeofday() stime()
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* 2021-02-10 Meco Man add ctime_r() and re-implement ctime()
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* 2021-02-11 Meco Man fix bug #3183 - align days[] and months[] to 4 bytes
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* 2021-02-12 Meco Man add errno
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* 2012-12-08 Bernard <clock_time.c> fix the issue of _timevalue.tv_usec initialization,
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* which found by Rob <rdent@iinet.net.au>
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* 2021-02-12 Meco Man move all of the functions located in <clock_time.c> to this file
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* 2021-03-15 Meco Man fixed a bug of leaking memory in asctime()
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* 2021-05-01 Meco Man support fixed timezone
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* 2021-07-21 Meco Man implement that change/set timezone APIs
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*/
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#include "sys/time.h"
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#include <sys/errno.h>
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#include <rtthread.h>
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#include <rthw.h>
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#include <unistd.h>
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#ifdef RT_USING_SMART
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#include "lwp.h"
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#endif
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#ifdef RT_USING_POSIX_DELAY
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#include <delay.h>
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#endif
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#if defined( RT_USING_RTC ) || defined( RT_USING_CPUTIME)
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#include <rtdevice.h>
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#endif
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#define DBG_TAG "time"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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#define _WARNING_NO_RTC "Cannot find a RTC device!"
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/* seconds per day */
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#define SPD 24*60*60
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/* days per month -- nonleap! */
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static const short __spm[13] =
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{
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0,
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(31),
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(31 + 28),
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(31 + 28 + 31),
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(31 + 28 + 31 + 30),
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(31 + 28 + 31 + 30 + 31),
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(31 + 28 + 31 + 30 + 31 + 30),
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(31 + 28 + 31 + 30 + 31 + 30 + 31),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31),
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};
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rt_align(4) static const char *days = "Sun Mon Tue Wed Thu Fri Sat ";
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rt_align(4) static const char *months = "Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ";
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#ifndef __isleap
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static int __isleap(int year)
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{
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/* every fourth year is a leap year except for century years that are
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* not divisible by 400. */
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/* return (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)); */
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return (!(year % 4) && ((year % 100) || !(year % 400)));
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}
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#endif
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static void num2str(char *c, int i)
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{
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c[0] = i / 10 + '0';
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c[1] = i % 10 + '0';
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}
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/**
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* Get time from RTC device (without timezone, UTC+0)
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* @param tv: struct timeval
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* @return the operation status, RT_EOK on successful
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*/
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static rt_err_t get_timeval(struct timeval *tv)
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{
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#ifdef RT_USING_RTC
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static rt_device_t device = RT_NULL;
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rt_err_t rst = -RT_ERROR;
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if (tv == RT_NULL)
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return -RT_EINVAL;
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/* default is 0 */
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tv->tv_sec = 0;
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tv->tv_usec = 0;
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/* optimization: find rtc device only first */
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if (device == RT_NULL)
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{
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device = rt_device_find("rtc");
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}
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/* read timestamp from RTC device */
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if (device != RT_NULL)
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{
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if (rt_device_open(device, 0) == RT_EOK)
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{
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rst = rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &tv->tv_sec);
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rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIMEVAL, tv);
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rt_device_close(device);
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}
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}
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else
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{
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LOG_W(_WARNING_NO_RTC);
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return -RT_ENOSYS;
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}
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return rst;
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#else
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LOG_W(_WARNING_NO_RTC);
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return -RT_ENOSYS;
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#endif /* RT_USING_RTC */
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}
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/**
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* Set time to RTC device (without timezone)
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* @param tv: struct timeval
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* @return the operation status, RT_EOK on successful
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*/
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static int set_timeval(struct timeval *tv)
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{
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#ifdef RT_USING_RTC
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static rt_device_t device = RT_NULL;
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rt_err_t rst = -RT_ERROR;
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if (tv == RT_NULL)
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return -RT_EINVAL;
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/* optimization: find rtc device only first */
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if (device == RT_NULL)
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{
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device = rt_device_find("rtc");
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}
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/* read timestamp from RTC device */
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if (device != RT_NULL)
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{
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if (rt_device_open(device, 0) == RT_EOK)
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{
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rst = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &tv->tv_sec);
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rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIMEVAL, tv);
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rt_device_close(device);
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}
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}
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else
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{
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LOG_W(_WARNING_NO_RTC);
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return -RT_ENOSYS;
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}
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return rst;
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#else
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LOG_W(_WARNING_NO_RTC);
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return -RT_ENOSYS;
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#endif /* RT_USING_RTC */
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}
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struct tm *gmtime_r(const time_t *timep, struct tm *r)
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{
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int i;
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int work;
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if(timep == RT_NULL || r == RT_NULL)
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{
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rt_set_errno(EFAULT);
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return RT_NULL;
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}
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rt_memset(r, RT_NULL, sizeof(struct tm));
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work = *timep % (SPD);
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r->tm_sec = work % 60;
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work /= 60;
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r->tm_min = work % 60;
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r->tm_hour = work / 60;
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work = (int)(*timep / (SPD));
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r->tm_wday = (4 + work) % 7;
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for (i = 1970;; ++i)
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{
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int k = __isleap(i) ? 366 : 365;
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if (work >= k)
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work -= k;
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else
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break;
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}
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r->tm_year = i - 1900;
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r->tm_yday = work;
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r->tm_mday = 1;
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if (__isleap(i) && (work > 58))
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{
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if (work == 59)
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r->tm_mday = 2; /* 29.2. */
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work -= 1;
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}
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for (i = 11; i && (__spm[i] > work); --i);
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r->tm_mon = i;
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r->tm_mday += work - __spm[i];
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r->tm_isdst = tz_is_dst();
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return r;
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}
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RTM_EXPORT(gmtime_r);
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struct tm* gmtime(const time_t* t)
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{
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static struct tm tmp;
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return gmtime_r(t, &tmp);
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}
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RTM_EXPORT(gmtime);
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struct tm* localtime_r(const time_t* t, struct tm* r)
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{
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time_t local_tz;
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local_tz = *t + (time_t)tz_get() * 3600;
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return gmtime_r(&local_tz, r);
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}
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RTM_EXPORT(localtime_r);
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struct tm* localtime(const time_t* t)
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{
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static struct tm tmp;
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return localtime_r(t, &tmp);
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}
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RTM_EXPORT(localtime);
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time_t mktime(struct tm * const t)
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{
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time_t timestamp;
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timestamp = timegm(t);
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timestamp = timestamp - 3600 * (time_t)tz_get();
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return timestamp;
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}
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RTM_EXPORT(mktime);
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char* asctime_r(const struct tm *t, char *buf)
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{
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if(t == RT_NULL || buf == RT_NULL)
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{
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rt_set_errno(EFAULT);
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return RT_NULL;
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}
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rt_memset(buf, RT_NULL, 26);
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/* Checking input validity */
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if ((int)rt_strlen(days) <= (t->tm_wday << 2) || (int)rt_strlen(months) <= (t->tm_mon << 2))
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{
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LOG_W("asctime_r: the input parameters exceeded the limit, please check it.");
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*(int*) buf = *(int*) days;
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*(int*) (buf + 4) = *(int*) months;
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num2str(buf + 8, t->tm_mday);
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if (buf[8] == '0')
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buf[8] = ' ';
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buf[10] = ' ';
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num2str(buf + 11, t->tm_hour);
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buf[13] = ':';
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num2str(buf + 14, t->tm_min);
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buf[16] = ':';
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num2str(buf + 17, t->tm_sec);
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buf[19] = ' ';
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num2str(buf + 20, 2000 / 100);
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num2str(buf + 22, 2000 % 100);
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buf[24] = '\n';
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buf[25] = '\0';
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return buf;
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}
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/* "Wed Jun 30 21:49:08 1993\n" */
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*(int*) buf = *(int*) (days + (t->tm_wday << 2));
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*(int*) (buf + 4) = *(int*) (months + (t->tm_mon << 2));
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num2str(buf + 8, t->tm_mday);
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if (buf[8] == '0')
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buf[8] = ' ';
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buf[10] = ' ';
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num2str(buf + 11, t->tm_hour);
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buf[13] = ':';
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num2str(buf + 14, t->tm_min);
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buf[16] = ':';
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num2str(buf + 17, t->tm_sec);
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buf[19] = ' ';
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num2str(buf + 20, (t->tm_year + 1900) / 100);
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num2str(buf + 22, (t->tm_year + 1900) % 100);
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buf[24] = '\n';
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buf[25] = '\0';
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return buf;
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}
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RTM_EXPORT(asctime_r);
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char* asctime(const struct tm *timeptr)
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{
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static char buf[26];
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return asctime_r(timeptr, buf);
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}
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RTM_EXPORT(asctime);
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char *ctime_r(const time_t * tim_p, char * result)
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{
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struct tm tm;
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return asctime_r(localtime_r(tim_p, &tm), result);
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}
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RTM_EXPORT(ctime_r);
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char* ctime(const time_t *tim_p)
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{
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return asctime(localtime(tim_p));
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}
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RTM_EXPORT(ctime);
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#ifndef __ICCARM__
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double difftime(time_t time1, time_t time2)
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{
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return (double)(time1 - time2);
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}
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#endif /* __ICCARM__ */
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RTM_EXPORT(difftime);
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RTM_EXPORT(strftime); /* inherent in the toolchain */
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/**
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* Returns the current time.
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*
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* @param time_t * t the timestamp pointer, if not used, keep NULL.
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*
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* @return The value ((time_t)-1) is returned if the calendar time is not available.
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* If timer is not a NULL pointer, the return value is also stored in timer.
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*
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*/
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rt_weak time_t time(time_t *t)
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{
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struct timeval now;
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if(get_timeval(&now) == RT_EOK)
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{
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if (t)
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{
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*t = now.tv_sec;
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}
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return now.tv_sec;
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}
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else
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{
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rt_set_errno(EFAULT);
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return ((time_t)-1);
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}
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}
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RTM_EXPORT(time);
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rt_weak clock_t clock(void)
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{
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return rt_tick_get();
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}
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RTM_EXPORT(clock);
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int stime(const time_t *t)
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{
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struct timeval tv;
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if (t == RT_NULL)
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{
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rt_set_errno(EFAULT);
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return -1;
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}
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tv.tv_sec = *t;
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tv.tv_usec = 0;
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if (set_timeval(&tv) == RT_EOK)
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{
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return 0;
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}
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else
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{
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rt_set_errno(EFAULT);
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return -1;
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}
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}
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RTM_EXPORT(stime);
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time_t timegm(struct tm * const t)
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{
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time_t day;
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time_t i;
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time_t years;
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if(t == RT_NULL)
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{
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rt_set_errno(EFAULT);
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return (time_t)-1;
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}
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years = (time_t)t->tm_year - 70;
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if (t->tm_sec > 60) /* seconds after the minute - [0, 60] including leap second */
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{
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t->tm_min += t->tm_sec / 60;
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t->tm_sec %= 60;
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}
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if (t->tm_min >= 60) /* minutes after the hour - [0, 59] */
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{
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t->tm_hour += t->tm_min / 60;
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t->tm_min %= 60;
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}
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if (t->tm_hour >= 24) /* hours since midnight - [0, 23] */
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{
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t->tm_mday += t->tm_hour / 24;
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t->tm_hour %= 24;
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}
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if (t->tm_mon >= 12) /* months since January - [0, 11] */
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{
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t->tm_year += t->tm_mon / 12;
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t->tm_mon %= 12;
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}
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while (t->tm_mday > __spm[1 + t->tm_mon])
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{
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if (t->tm_mon == 1 && __isleap(t->tm_year + 1900))
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{
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--t->tm_mday;
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}
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t->tm_mday -= __spm[t->tm_mon];
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++t->tm_mon;
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if (t->tm_mon > 11)
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{
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t->tm_mon = 0;
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++t->tm_year;
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}
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}
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if (t->tm_year < 70)
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{
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rt_set_errno(EINVAL);
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return (time_t) -1;
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}
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/* Days since 1970 is 365 * number of years + number of leap years since 1970 */
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day = years * 365 + (years + 1) / 4;
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/* After 2100 we have to substract 3 leap years for every 400 years
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This is not intuitive. Most mktime implementations do not support
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dates after 2059, anyway, so we might leave this out for it's
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bloat. */
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if (years >= 131)
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{
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years -= 131;
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years /= 100;
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day -= (years >> 2) * 3 + 1;
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if ((years &= 3) == 3)
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years--;
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day -= years;
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}
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day += t->tm_yday = __spm[t->tm_mon] + t->tm_mday - 1 +
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(__isleap(t->tm_year + 1900) & (t->tm_mon > 1));
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/* day is now the number of days since 'Jan 1 1970' */
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i = 7;
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t->tm_wday = (int)((day + 4) % i); /* Sunday=0, Monday=1, ..., Saturday=6 */
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i = 24;
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day *= i;
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i = 60;
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return ((day + t->tm_hour) * i + t->tm_min) * i + t->tm_sec;
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}
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RTM_EXPORT(timegm);
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int gettimeofday(struct timeval *tv, struct timezone *tz)
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{
|
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/* The use of the timezone structure is obsolete;
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* the tz argument should normally be specified as NULL.
|
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* The tz_dsttime field has never been used under Linux.
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* Thus, the following is purely of historic interest.
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*/
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if(tz != RT_NULL)
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{
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tz->tz_dsttime = DST_NONE;
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tz->tz_minuteswest = -(tz_get() * 60);
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}
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if (tv != RT_NULL && get_timeval(tv) == RT_EOK)
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{
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return 0;
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}
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else
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{
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rt_set_errno(EINVAL);
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return -1;
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}
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}
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RTM_EXPORT(gettimeofday);
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|
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int settimeofday(const struct timeval *tv, const struct timezone *tz)
|
|
{
|
|
/* The use of the timezone structure is obsolete;
|
|
* the tz argument should normally be specified as NULL.
|
|
* The tz_dsttime field has never been used under Linux.
|
|
* Thus, the following is purely of historic interest.
|
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*/
|
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if (tv != RT_NULL
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&& tv->tv_usec >= 0
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&& set_timeval((struct timeval *)tv) == RT_EOK)
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{
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return 0;
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}
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else
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{
|
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rt_set_errno(EINVAL);
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return -1;
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}
|
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}
|
|
RTM_EXPORT(settimeofday);
|
|
|
|
#ifdef RT_USING_POSIX_DELAY
|
|
int nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
|
|
{
|
|
if (rqtp->tv_sec < 0 || rqtp->tv_nsec < 0 || rqtp->tv_nsec >= NANOSECOND_PER_SECOND)
|
|
{
|
|
rt_set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
#ifdef RT_USING_CPUTIME
|
|
rt_uint64_t unit = clock_cpu_getres();
|
|
rt_uint64_t ns = rqtp->tv_sec * NANOSECOND_PER_SECOND + rqtp->tv_nsec;
|
|
rt_uint64_t tick = (ns * (1000UL * 1000)) / unit;
|
|
rt_cputime_sleep(tick);
|
|
|
|
if (rt_get_errno() == -RT_EINTR)
|
|
{
|
|
if (rmtp)
|
|
{
|
|
uint64_t rmtp_cpu_tick = tick - clock_cpu_gettime();
|
|
rmtp->tv_sec = ((time_t)((rmtp_cpu_tick * unit) / (1000UL * 1000))) / NANOSECOND_PER_SECOND;
|
|
rmtp->tv_nsec = ((long)((rmtp_cpu_tick * unit) / (1000UL * 1000))) % NANOSECOND_PER_SECOND;
|
|
}
|
|
rt_set_errno(EINTR);
|
|
return -1;
|
|
}
|
|
#else
|
|
rt_tick_t tick, tick_old = rt_tick_get();
|
|
tick = rqtp->tv_sec * RT_TICK_PER_SECOND + ((uint64_t)rqtp->tv_nsec * RT_TICK_PER_SECOND) / NANOSECOND_PER_SECOND;
|
|
rt_thread_delay(tick);
|
|
|
|
if (rt_get_errno() == -RT_EINTR)
|
|
{
|
|
if (rmtp)
|
|
{
|
|
tick = tick_old + tick - rt_tick_get();
|
|
/* get the passed time */
|
|
rmtp->tv_sec = tick / RT_TICK_PER_SECOND;
|
|
rmtp->tv_nsec = (tick % RT_TICK_PER_SECOND) * (NANOSECOND_PER_SECOND / RT_TICK_PER_SECOND);
|
|
}
|
|
rt_set_errno(EINTR);
|
|
return -1;
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
RTM_EXPORT(nanosleep);
|
|
#endif /* RT_USING_POSIX_DELAY */
|
|
|
|
#ifdef RT_USING_POSIX_CLOCK
|
|
#ifdef RT_USING_RTC
|
|
static volatile struct timeval _timevalue;
|
|
static int _rt_clock_time_system_init(void)
|
|
{
|
|
rt_base_t level;
|
|
time_t time = 0;
|
|
rt_tick_t tick;
|
|
rt_device_t device;
|
|
|
|
device = rt_device_find("rtc");
|
|
if (device != RT_NULL)
|
|
{
|
|
/* get realtime seconds */
|
|
if(rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time) == RT_EOK)
|
|
{
|
|
level = rt_hw_interrupt_disable();
|
|
tick = rt_tick_get(); /* get tick */
|
|
_timevalue.tv_usec = (tick%RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK;
|
|
_timevalue.tv_sec = time - tick/RT_TICK_PER_SECOND - 1;
|
|
rt_hw_interrupt_enable(level);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
level = rt_hw_interrupt_disable();
|
|
_timevalue.tv_usec = 0;
|
|
_timevalue.tv_sec = 0;
|
|
rt_hw_interrupt_enable(level);
|
|
|
|
return -1;
|
|
}
|
|
INIT_COMPONENT_EXPORT(_rt_clock_time_system_init);
|
|
#endif /* RT_USING_RTC */
|
|
|
|
int clock_getres(clockid_t clockid, struct timespec *res)
|
|
{
|
|
#ifndef RT_USING_RTC
|
|
LOG_W(_WARNING_NO_RTC);
|
|
return -1;
|
|
#else
|
|
int ret = 0;
|
|
|
|
if (res == RT_NULL)
|
|
{
|
|
rt_set_errno(EFAULT);
|
|
return -1;
|
|
}
|
|
|
|
switch (clockid)
|
|
{
|
|
case CLOCK_REALTIME:
|
|
#ifndef RT_USING_CPUTIME
|
|
res->tv_sec = 0;
|
|
res->tv_nsec = NANOSECOND_PER_SECOND/RT_TICK_PER_SECOND;
|
|
break;
|
|
#endif
|
|
#ifdef RT_USING_CPUTIME
|
|
case CLOCK_CPUTIME_ID:
|
|
res->tv_sec = 0;
|
|
res->tv_nsec = (clock_cpu_getres() / (1000UL * 1000));
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
res->tv_sec = 0;
|
|
res->tv_nsec = 0;
|
|
ret = -1;
|
|
rt_set_errno(EINVAL);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
#endif /* RT_USING_RTC */
|
|
}
|
|
RTM_EXPORT(clock_getres);
|
|
|
|
int clock_gettime(clockid_t clockid, struct timespec *tp)
|
|
{
|
|
#ifndef RT_USING_RTC
|
|
LOG_W(_WARNING_NO_RTC);
|
|
return -1;
|
|
#else
|
|
int ret = 0;
|
|
|
|
if (tp == RT_NULL)
|
|
{
|
|
rt_set_errno(EFAULT);
|
|
return -1;
|
|
}
|
|
|
|
switch (clockid)
|
|
{
|
|
case CLOCK_REALTIME:
|
|
#ifndef RT_USING_CPUTIME
|
|
{
|
|
rt_tick_t tick;
|
|
rt_base_t level;
|
|
|
|
level = rt_hw_interrupt_disable();
|
|
tick = rt_tick_get(); /* get tick */
|
|
tp->tv_sec = _timevalue.tv_sec + tick / RT_TICK_PER_SECOND;
|
|
tp->tv_nsec = (_timevalue.tv_usec + (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK) * 1000U;
|
|
rt_hw_interrupt_enable(level);
|
|
if (tp->tv_nsec > 1000000000ULL)
|
|
{
|
|
tp->tv_nsec %= 1000000000ULL;
|
|
tp->tv_sec += 1;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef RT_USING_CPUTIME
|
|
case CLOCK_MONOTONIC:
|
|
case CLOCK_CPUTIME_ID:
|
|
{
|
|
uint64_t unit = 0;
|
|
uint64_t cpu_tick;
|
|
|
|
unit = clock_cpu_getres();
|
|
cpu_tick = clock_cpu_gettime();
|
|
|
|
tp->tv_sec = ((uint64_t)((cpu_tick * unit) / (1000UL * 1000))) / NANOSECOND_PER_SECOND;
|
|
tp->tv_nsec = ((uint64_t)((cpu_tick * unit) / (1000UL * 1000))) % NANOSECOND_PER_SECOND;
|
|
}
|
|
break;
|
|
#endif
|
|
default:
|
|
tp->tv_sec = 0;
|
|
tp->tv_nsec = 0;
|
|
rt_set_errno(EINVAL);
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
#endif /* RT_USING_RTC */
|
|
}
|
|
RTM_EXPORT(clock_gettime);
|
|
|
|
int clock_nanosleep(clockid_t clockid, int flags, const struct timespec *rqtp, struct timespec *rmtp)
|
|
{
|
|
#ifndef RT_USING_RTC
|
|
LOG_W(_WARNING_NO_RTC);
|
|
return -1;
|
|
#else
|
|
if (rqtp->tv_sec < 0 || rqtp->tv_nsec < 0 || rqtp->tv_nsec >= NANOSECOND_PER_SECOND)
|
|
{
|
|
rt_set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
switch (clockid)
|
|
{
|
|
case CLOCK_REALTIME:
|
|
{
|
|
rt_tick_t tick, tick_old = rt_tick_get();
|
|
if ((flags & TIMER_ABSTIME) == TIMER_ABSTIME)
|
|
{
|
|
rt_int64_t ts = ((rqtp->tv_sec - _timevalue.tv_sec) * RT_TICK_PER_SECOND);
|
|
rt_int64_t tns = (rqtp->tv_nsec - _timevalue.tv_usec * 1000) * (RT_TICK_PER_SECOND / NANOSECOND_PER_SECOND);
|
|
tick = ts + tns;
|
|
rt_tick_t rt_tick = rt_tick_get();
|
|
tick = tick < rt_tick ? 0 : tick - rt_tick;
|
|
}
|
|
else
|
|
{
|
|
tick = rqtp->tv_sec * RT_TICK_PER_SECOND + ((uint64_t)(rqtp->tv_nsec) * RT_TICK_PER_SECOND) / NANOSECOND_PER_SECOND;
|
|
}
|
|
rt_thread_delay(tick);
|
|
|
|
if (rt_get_errno() == -RT_EINTR)
|
|
{
|
|
if (rmtp)
|
|
{
|
|
tick = tick_old + tick - rt_tick_get();
|
|
/* get the passed time */
|
|
rmtp->tv_sec = tick / RT_TICK_PER_SECOND;
|
|
rmtp->tv_nsec = (tick % RT_TICK_PER_SECOND) * (NANOSECOND_PER_SECOND / RT_TICK_PER_SECOND);
|
|
}
|
|
rt_set_errno(EINTR);
|
|
return -1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
#ifdef RT_USING_CPUTIME
|
|
case CLOCK_MONOTONIC:
|
|
case CLOCK_CPUTIME_ID:
|
|
{
|
|
rt_uint64_t cpu_tick_old = clock_cpu_gettime();
|
|
uint64_t unit = clock_cpu_getres();
|
|
rt_uint64_t ns = rqtp->tv_sec * NANOSECOND_PER_SECOND + rqtp->tv_nsec;
|
|
rt_uint64_t tick = (ns * (1000UL * 1000)) / unit;
|
|
if ((flags & TIMER_ABSTIME) == TIMER_ABSTIME)
|
|
tick -= cpu_tick_old;
|
|
rt_cputime_sleep(tick);
|
|
|
|
if (rt_get_errno() == -RT_EINTR)
|
|
{
|
|
if (rmtp)
|
|
{
|
|
uint64_t rmtp_cpu_tick = tick - clock_cpu_gettime();
|
|
rmtp->tv_sec = ((time_t)((rmtp_cpu_tick * unit) / (1000UL * 1000))) / NANOSECOND_PER_SECOND;
|
|
rmtp->tv_nsec = ((long)((rmtp_cpu_tick * unit) / (1000UL * 1000))) % NANOSECOND_PER_SECOND;
|
|
}
|
|
rt_set_errno(EINTR);
|
|
return -1;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
default:
|
|
rt_set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
#endif
|
|
}
|
|
RTM_EXPORT(clock_nanosleep);
|
|
|
|
int clock_settime(clockid_t clockid, const struct timespec *tp)
|
|
{
|
|
#ifndef RT_USING_RTC
|
|
LOG_W(_WARNING_NO_RTC);
|
|
return -1;
|
|
#else
|
|
rt_base_t level;
|
|
int second;
|
|
rt_tick_t tick;
|
|
rt_device_t device;
|
|
|
|
if ((clockid != CLOCK_REALTIME) || (tp == RT_NULL))
|
|
{
|
|
rt_set_errno(EFAULT);
|
|
return -1;
|
|
}
|
|
|
|
/* get second */
|
|
second = tp->tv_sec;
|
|
|
|
level = rt_hw_interrupt_disable();
|
|
tick = rt_tick_get(); /* get tick */
|
|
/* update timevalue */
|
|
_timevalue.tv_usec = MICROSECOND_PER_SECOND - (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK;
|
|
_timevalue.tv_sec = second - tick / RT_TICK_PER_SECOND - 1;
|
|
rt_hw_interrupt_enable(level);
|
|
|
|
/* update for RTC device */
|
|
device = rt_device_find("rtc");
|
|
if (device != RT_NULL)
|
|
{
|
|
/* set realtime seconds */
|
|
if(rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &second) == RT_EOK)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
#endif /* RT_USING_RTC */
|
|
}
|
|
RTM_EXPORT(clock_settime);
|
|
|
|
int rt_timespec_to_tick(const struct timespec *time)
|
|
{
|
|
int tick;
|
|
int nsecond, second;
|
|
struct timespec tp = {0};
|
|
|
|
RT_ASSERT(time != RT_NULL);
|
|
|
|
tick = RT_WAITING_FOREVER;
|
|
if (time != NULL)
|
|
{
|
|
/* get current tp */
|
|
clock_gettime(CLOCK_REALTIME, &tp);
|
|
|
|
if ((time->tv_nsec - tp.tv_nsec) < 0)
|
|
{
|
|
nsecond = NANOSECOND_PER_SECOND - (tp.tv_nsec - time->tv_nsec);
|
|
second = time->tv_sec - tp.tv_sec - 1;
|
|
}
|
|
else
|
|
{
|
|
nsecond = time->tv_nsec - tp.tv_nsec;
|
|
second = time->tv_sec - tp.tv_sec;
|
|
}
|
|
|
|
tick = second * RT_TICK_PER_SECOND + nsecond * RT_TICK_PER_SECOND / NANOSECOND_PER_SECOND;
|
|
if (tick < 0) tick = 0;
|
|
}
|
|
|
|
return tick;
|
|
}
|
|
RTM_EXPORT(rt_timespec_to_tick);
|
|
|
|
#endif /* RT_USING_POSIX_CLOCK */
|
|
|
|
#ifdef RT_USING_POSIX_TIMER
|
|
|
|
#include <resource_id.h>
|
|
|
|
#define ACTIVE 1
|
|
#define NOT_ACTIVE 0
|
|
|
|
struct timer_obj
|
|
{
|
|
union
|
|
{
|
|
struct rt_timer timer;
|
|
#ifdef RT_USING_CPUTIME
|
|
struct rt_cputimer cputimer;
|
|
#endif
|
|
};
|
|
void (*sigev_notify_function)(union sigval val);
|
|
union sigval val;
|
|
struct timespec interval; /* Reload value */
|
|
struct timespec value; /* Reload value */
|
|
rt_uint64_t reload; /* Reload value in ms */
|
|
rt_uint32_t status;
|
|
int sigev_signo;
|
|
clockid_t clockid;
|
|
#ifdef RT_USING_SMART
|
|
pid_t pid;
|
|
#endif
|
|
};
|
|
|
|
static void rtthread_timer_wrapper(void *timerobj)
|
|
{
|
|
struct timer_obj *timer;
|
|
|
|
timer = (struct timer_obj *)timerobj;
|
|
|
|
if (timer->reload == 0U)
|
|
{
|
|
timer->status = NOT_ACTIVE;
|
|
}
|
|
|
|
#ifdef RT_USING_CPUTIME
|
|
if (timer->clockid == CLOCK_CPUTIME_ID && clock_cpu_issettimeout())
|
|
{
|
|
timer->reload = ((timer->interval.tv_sec * NANOSECOND_PER_SECOND + timer->interval.tv_nsec) * (1000UL * 1000)) / clock_cpu_getres();
|
|
if (timer->reload)
|
|
rt_cputimer_control(&timer->cputimer, RT_TIMER_CTRL_SET_TIME, &(timer->reload));
|
|
}
|
|
else
|
|
#endif /* RT_USING_CPUTIME */
|
|
{
|
|
timer->reload = (timer->interval.tv_sec * RT_TICK_PER_SECOND) + (timer->interval.tv_nsec * RT_TICK_PER_SECOND) / NANOSECOND_PER_SECOND;
|
|
if (timer->reload)
|
|
rt_timer_control(&timer->timer, RT_TIMER_CTRL_SET_TIME, &(timer->reload));
|
|
}
|
|
|
|
#ifdef RT_USING_SMART
|
|
sys_kill(timer->pid, timer->sigev_signo);
|
|
#else
|
|
if(timer->sigev_notify_function != RT_NULL)
|
|
{
|
|
(timer->sigev_notify_function)(timer->val);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#define TIMER_ID_MAX 50
|
|
static struct timer_obj *_g_timerid[TIMER_ID_MAX];
|
|
static void *timer_id[TIMER_ID_MAX];
|
|
static resource_id_t id_timer = RESOURCE_ID_INIT(TIMER_ID_MAX, timer_id);
|
|
|
|
/**
|
|
* @brief Create a per-process timer.
|
|
*
|
|
* This API does not accept SIGEV_THREAD as valid signal event notification
|
|
* type.
|
|
*
|
|
* See IEEE 1003.1
|
|
*/
|
|
int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid)
|
|
{
|
|
static int num = 0;
|
|
int _timerid = 0;
|
|
struct timer_obj *timer;
|
|
char timername[RT_NAME_MAX] = {0};
|
|
|
|
if (clockid > CLOCK_ID_MAX ||
|
|
(evp->sigev_notify != SIGEV_NONE &&
|
|
evp->sigev_notify != SIGEV_SIGNAL))
|
|
{
|
|
rt_set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
timer = rt_malloc(sizeof(struct timer_obj));
|
|
if(timer == RT_NULL)
|
|
{
|
|
rt_set_errno(ENOMEM);
|
|
return -1;
|
|
}
|
|
|
|
rt_snprintf(timername, RT_NAME_MAX, "psx_tm%02d", num++);
|
|
num %= 100;
|
|
timer->sigev_signo = evp->sigev_signo;
|
|
#ifdef RT_USING_SMART
|
|
timer->pid = lwp_self()->pid;
|
|
#endif
|
|
timer->sigev_notify_function = evp->sigev_notify_function;
|
|
timer->val = evp->sigev_value;
|
|
timer->interval.tv_sec = 0;
|
|
timer->interval.tv_nsec = 0;
|
|
timer->reload = 0U;
|
|
timer->status = NOT_ACTIVE;
|
|
timer->clockid = clockid;
|
|
|
|
#ifdef RT_USING_CPUTIME
|
|
if (timer->clockid == CLOCK_CPUTIME_ID && clock_cpu_issettimeout())
|
|
{
|
|
rt_cputimer_init(&timer->cputimer, timername, rtthread_timer_wrapper, timer, 0, RT_TIMER_FLAG_ONE_SHOT | RT_TIMER_FLAG_SOFT_TIMER);
|
|
}
|
|
else
|
|
#endif /* RT_USING_CPUTIME */
|
|
{
|
|
if (evp->sigev_notify == SIGEV_NONE)
|
|
rt_timer_init(&timer->timer, timername, RT_NULL, RT_NULL, 0, RT_TIMER_FLAG_ONE_SHOT | RT_TIMER_FLAG_SOFT_TIMER);
|
|
else
|
|
rt_timer_init(&timer->timer, timername, rtthread_timer_wrapper, timer, 0, RT_TIMER_FLAG_ONE_SHOT | RT_TIMER_FLAG_SOFT_TIMER);
|
|
}
|
|
|
|
_timerid = resource_id_get(&id_timer);
|
|
if (_timerid < 0)
|
|
{
|
|
LOG_E("_timerid overflow!");
|
|
return -1; /* todo:memory leak */
|
|
}
|
|
_g_timerid[_timerid] = timer;
|
|
*timerid = (timer_t)(rt_ubase_t)_timerid;
|
|
|
|
return 0;
|
|
}
|
|
RTM_EXPORT(timer_create);
|
|
|
|
/**
|
|
* @brief Delete a per-process timer.
|
|
*
|
|
* See IEEE 1003.1
|
|
*/
|
|
int timer_delete(timer_t timerid)
|
|
{
|
|
struct timer_obj *timer;
|
|
rt_ubase_t ktimerid;
|
|
|
|
ktimerid = (rt_ubase_t)timerid;
|
|
|
|
if (ktimerid < 0 || ktimerid >= TIMER_ID_MAX)
|
|
{
|
|
rt_set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (_g_timerid[ktimerid] == NULL)
|
|
{
|
|
rt_set_errno(EINVAL);
|
|
LOG_E("can not find timer!");
|
|
return -1;
|
|
}
|
|
timer = _g_timerid[ktimerid];
|
|
resource_id_put(&id_timer, ktimerid);
|
|
if (timer == RT_NULL)
|
|
{
|
|
rt_set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef RT_USING_CPUTIME
|
|
if (timer->clockid == CLOCK_CPUTIME_ID && clock_cpu_issettimeout())
|
|
{
|
|
if (timer->status == ACTIVE)
|
|
{
|
|
timer->status = NOT_ACTIVE;
|
|
rt_cputimer_stop(&timer->cputimer);
|
|
}
|
|
rt_cputimer_detach(&timer->cputimer);
|
|
}
|
|
else
|
|
#endif /* RT_USING_CPUTIME */
|
|
{
|
|
if (timer->status == ACTIVE)
|
|
{
|
|
timer->status = NOT_ACTIVE;
|
|
rt_timer_stop(&timer->timer);
|
|
}
|
|
rt_timer_detach(&timer->timer);
|
|
}
|
|
rt_free(timer);
|
|
|
|
return 0;
|
|
}
|
|
RTM_EXPORT(timer_delete);
|
|
|
|
/**
|
|
*
|
|
* Return the overrun count for the last timer expiration.
|
|
* It is subefficient to create a new structure to get overrun count.
|
|
**/
|
|
int timer_getoverrun(timer_t timerid)
|
|
{
|
|
rt_set_errno(ENOSYS);
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* @brief Get amount of time left for expiration on a per-process timer.
|
|
*
|
|
* See IEEE 1003.1
|
|
*/
|
|
int timer_gettime(timer_t timerid, struct itimerspec *its)
|
|
{
|
|
struct timer_obj *timer;
|
|
rt_uint32_t seconds, nanoseconds;
|
|
|
|
timer = _g_timerid[(rt_ubase_t)timerid];
|
|
|
|
if (timer == NULL)
|
|
{
|
|
rt_set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (its == NULL)
|
|
{
|
|
rt_set_errno(EFAULT);
|
|
return -1;
|
|
}
|
|
|
|
if (timer->status == ACTIVE)
|
|
{
|
|
#ifdef RT_USING_CPUTIME
|
|
if (timer->clockid == CLOCK_CPUTIME_ID && clock_cpu_issettimeout())
|
|
{
|
|
rt_uint64_t remain_tick;
|
|
rt_uint64_t remaining;
|
|
rt_cputimer_control(&timer->cputimer, RT_TIMER_CTRL_GET_REMAIN_TIME, &remain_tick);
|
|
remaining = ((remain_tick - clock_cpu_gettime()) * (1000UL * 1000)) / clock_cpu_getres();
|
|
seconds = remaining / NANOSECOND_PER_SECOND;
|
|
nanoseconds = remaining % NANOSECOND_PER_SECOND;
|
|
}
|
|
else
|
|
#endif /* RT_USING_CPUTIME */
|
|
{
|
|
rt_tick_t remain_tick;
|
|
rt_tick_t remaining;
|
|
|
|
rt_timer_control(&timer->timer, RT_TIMER_CTRL_GET_REMAIN_TIME, &remain_tick);
|
|
|
|
/* 'remain_tick' is minimum-unit in the RT-Thread' timer,
|
|
* so the seconds, nanoseconds will be calculated by 'remain_tick'.
|
|
*/
|
|
remaining = remain_tick - rt_tick_get();
|
|
|
|
/* calculate 'second' */
|
|
seconds = remaining / RT_TICK_PER_SECOND;
|
|
|
|
/* calculate 'nanosecond'; To avoid lost of accuracy, because "RT_TICK_PER_SECOND" maybe 100, 1000, 1024 and so on.
|
|
*
|
|
* remain_tick millisecond remain_tick * MILLISECOND_PER_SECOND
|
|
* ------------------------- = -------------------------- ---> millisecond = -------------------------------------------
|
|
* RT_TICK_PER_SECOND MILLISECOND_PER_SECOND RT_TICK_PER_SECOND
|
|
*
|
|
* remain_tick * MILLISECOND_PER_SECOND remain_tick * MILLISECOND_PER_SECOND * MICROSECOND_PER_SECOND
|
|
* millisecond = ---------------------------------------- ---> nanosecond = -------------------------------------------------------------------
|
|
* RT_TICK_PER_SECOND RT_TICK_PER_SECOND
|
|
*
|
|
*/
|
|
nanoseconds = (((remaining % RT_TICK_PER_SECOND) * MILLISECOND_PER_SECOND) * MICROSECOND_PER_SECOND) / RT_TICK_PER_SECOND;
|
|
}
|
|
its->it_value.tv_sec = (rt_int32_t)seconds;
|
|
its->it_value.tv_nsec = (rt_int32_t)nanoseconds;
|
|
}
|
|
else
|
|
{
|
|
/* Timer is disarmed */
|
|
its->it_value.tv_sec = 0;
|
|
its->it_value.tv_nsec = 0;
|
|
}
|
|
|
|
/* The interval last set by timer_settime() */
|
|
its->it_interval = timer->interval;
|
|
return 0;
|
|
}
|
|
RTM_EXPORT(timer_gettime);
|
|
|
|
/**
|
|
* @brief Sets expiration time of per-process timer.
|
|
*
|
|
* See IEEE 1003.1
|
|
*/
|
|
int timer_settime(timer_t timerid, int flags, const struct itimerspec *value,
|
|
struct itimerspec *ovalue)
|
|
{
|
|
struct timer_obj *timer;
|
|
timer = _g_timerid[(rt_ubase_t)timerid];
|
|
if (timer == NULL ||
|
|
value->it_interval.tv_nsec < 0 ||
|
|
value->it_interval.tv_nsec >= NANOSECOND_PER_SECOND ||
|
|
value->it_interval.tv_sec < 0 ||
|
|
value->it_value.tv_nsec < 0 ||
|
|
value->it_value.tv_nsec >= NANOSECOND_PER_SECOND ||
|
|
value->it_value.tv_sec < 0)
|
|
{
|
|
rt_set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
/* Save time to expire and old reload value. */
|
|
if (ovalue != NULL)
|
|
{
|
|
timer_gettime(timerid, ovalue);
|
|
}
|
|
|
|
/* Stop the timer if the value is 0 */
|
|
if ((value->it_value.tv_sec == 0) && (value->it_value.tv_nsec == 0))
|
|
{
|
|
if (timer->status == ACTIVE)
|
|
{
|
|
#ifdef RT_USING_CPUTIME
|
|
if (timer->clockid == CLOCK_CPUTIME_ID && clock_cpu_issettimeout())
|
|
rt_cputimer_stop(&timer->cputimer);
|
|
else
|
|
#endif /* RT_USING_CPUTIME */
|
|
rt_timer_stop(&timer->timer);
|
|
}
|
|
|
|
timer->status = NOT_ACTIVE;
|
|
return 0;
|
|
}
|
|
|
|
/* calculate timer period(tick); To avoid lost of accuracy, because "RT_TICK_PER_SECOND" maybe 100, 1000, 1024 and so on.
|
|
*
|
|
* tick nanosecond nanosecond * RT_TICK_PER_SECOND
|
|
* ------------------------- = -------------------------- ---> tick = -------------------------------------
|
|
* RT_TICK_PER_SECOND NANOSECOND_PER_SECOND NANOSECOND_PER_SECOND
|
|
*
|
|
*/
|
|
#ifdef RT_USING_CPUTIME
|
|
if (timer->clockid == CLOCK_CPUTIME_ID && clock_cpu_issettimeout())
|
|
{
|
|
rt_uint64_t tick;
|
|
uint64_t unit = clock_cpu_getres();
|
|
|
|
tick = ((value->it_value.tv_sec * NANOSECOND_PER_SECOND + value->it_value.tv_nsec) * (1000UL * 1000)) / unit;
|
|
if ((flags & TIMER_ABSTIME) == TIMER_ABSTIME)
|
|
{
|
|
tick -= clock_cpu_gettime();
|
|
}
|
|
timer->reload = tick;
|
|
}
|
|
else
|
|
#endif /* RT_USING_CPUTIME */
|
|
{
|
|
if ((flags & TIMER_ABSTIME) == TIMER_ABSTIME)
|
|
{
|
|
#ifndef RT_USING_RTC
|
|
LOG_W(_WARNING_NO_RTC);
|
|
return -1;
|
|
#else
|
|
rt_int64_t ts = ((value->it_value.tv_sec - _timevalue.tv_sec) * RT_TICK_PER_SECOND);
|
|
rt_int64_t tns = (value->it_value.tv_nsec - _timevalue.tv_usec * 1000) * (RT_TICK_PER_SECOND / NANOSECOND_PER_SECOND);
|
|
rt_int64_t reload = ts + tns;
|
|
rt_tick_t rt_tick = rt_tick_get();
|
|
|
|
timer->reload = reload < rt_tick ? 0 : reload - rt_tick;
|
|
#endif
|
|
}
|
|
else
|
|
timer->reload = (value->it_value.tv_sec * RT_TICK_PER_SECOND) + value->it_value.tv_nsec * (RT_TICK_PER_SECOND / NANOSECOND_PER_SECOND);
|
|
}
|
|
timer->interval.tv_sec = value->it_interval.tv_sec;
|
|
timer->interval.tv_nsec = value->it_interval.tv_nsec;
|
|
timer->value.tv_sec = value->it_value.tv_sec;
|
|
timer->value.tv_nsec = value->it_value.tv_nsec;
|
|
|
|
if (timer->status == ACTIVE)
|
|
{
|
|
#ifdef RT_USING_CPUTIME
|
|
if (timer->clockid == CLOCK_CPUTIME_ID && clock_cpu_issettimeout())
|
|
rt_cputimer_stop(&timer->cputimer);
|
|
else
|
|
#endif /* RT_USING_CPUTIME */
|
|
rt_timer_stop(&timer->timer);
|
|
}
|
|
|
|
timer->status = ACTIVE;
|
|
|
|
#ifdef RT_USING_CPUTIME
|
|
if (timer->clockid == CLOCK_CPUTIME_ID && clock_cpu_issettimeout())
|
|
{
|
|
if ((value->it_interval.tv_sec == 0) && (value->it_interval.tv_nsec == 0))
|
|
rt_cputimer_control(&timer->cputimer, RT_TIMER_CTRL_SET_ONESHOT, RT_NULL);
|
|
else
|
|
rt_cputimer_control(&timer->cputimer, RT_TIMER_CTRL_SET_PERIODIC, RT_NULL);
|
|
|
|
rt_cputimer_control(&timer->cputimer, RT_TIMER_CTRL_SET_TIME, &(timer->reload));
|
|
rt_cputimer_start(&timer->cputimer);
|
|
}
|
|
else
|
|
#endif /* RT_USING_CPUTIME */
|
|
{
|
|
if ((value->it_interval.tv_sec == 0) && (value->it_interval.tv_nsec == 0))
|
|
rt_timer_control(&timer->timer, RT_TIMER_CTRL_SET_ONESHOT, RT_NULL);
|
|
else
|
|
rt_timer_control(&timer->timer, RT_TIMER_CTRL_SET_PERIODIC, RT_NULL);
|
|
|
|
rt_timer_control(&timer->timer, RT_TIMER_CTRL_SET_TIME, &(timer->reload));
|
|
rt_timer_start(&timer->timer);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
RTM_EXPORT(timer_settime);
|
|
#endif /* RT_USING_POSIX_TIMER */
|
|
|
|
|
|
/* timezone */
|
|
#ifndef RT_LIBC_DEFAULT_TIMEZONE
|
|
#define RT_LIBC_DEFAULT_TIMEZONE 8
|
|
#endif
|
|
|
|
static volatile int8_t _current_timezone = RT_LIBC_DEFAULT_TIMEZONE;
|
|
|
|
void tz_set(int8_t tz)
|
|
{
|
|
rt_base_t level;
|
|
level = rt_hw_interrupt_disable();
|
|
_current_timezone = tz;
|
|
rt_hw_interrupt_enable(level);
|
|
}
|
|
|
|
int8_t tz_get(void)
|
|
{
|
|
return _current_timezone;
|
|
}
|
|
|
|
int8_t tz_is_dst(void)
|
|
{
|
|
return 0;
|
|
}
|