269 lines
6.8 KiB
C
269 lines
6.8 KiB
C
/*
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* File : rtc.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2012-01-29 aozima first version.
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* 2012-04-12 aozima optimization: find rtc device only first.
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* 2012-04-16 aozima add scheduler lock for set_date and set_time.
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* 2018-02-16 armink add auto sync time by NTP
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*/
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#include <time.h>
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#include <string.h>
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#include <rtthread.h>
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#ifdef RT_USING_RTC
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/* Using NTP auto sync RTC time */
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#ifdef RTC_SYNC_USING_NTP
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/* NTP first sync delay time for network connect, unit: second */
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#ifndef RTC_NTP_FIRST_SYNC_DELAY
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#define RTC_NTP_FIRST_SYNC_DELAY (30)
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#endif
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/* NTP sync period, unit: second */
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#ifndef RTC_NTP_SYNC_PERIOD
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#define RTC_NTP_SYNC_PERIOD (1L*60L*60L)
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#endif
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#endif /* RTC_SYNC_USING_NTP */
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/**
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* Set system date(time not modify).
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*
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* @param rt_uint32_t year e.g: 2012.
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* @param rt_uint32_t month e.g: 12 (1~12).
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* @param rt_uint32_t day e.g: 31.
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*
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* @return rt_err_t if set success, return RT_EOK.
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*
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*/
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rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day)
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{
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time_t now;
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struct tm *p_tm;
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struct tm tm_new;
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rt_device_t device;
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rt_err_t ret = -RT_ERROR;
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/* get current time */
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now = time(RT_NULL);
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/* lock scheduler. */
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rt_enter_critical();
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/* converts calendar time time into local time. */
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p_tm = localtime(&now);
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/* copy the statically located variable */
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memcpy(&tm_new, p_tm, sizeof(struct tm));
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/* unlock scheduler. */
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rt_exit_critical();
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/* update date. */
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tm_new.tm_year = year - 1900;
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tm_new.tm_mon = month - 1; /* tm_mon: 0~11 */
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tm_new.tm_mday = day;
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/* converts the local time in time to calendar time. */
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now = mktime(&tm_new);
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device = rt_device_find("rtc");
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if (device == RT_NULL)
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{
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return -RT_ERROR;
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}
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/* update to RTC device. */
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ret = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &now);
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return ret;
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}
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/**
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* Set system time(date not modify).
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*
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* @param rt_uint32_t hour e.g: 0~23.
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* @param rt_uint32_t minute e.g: 0~59.
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* @param rt_uint32_t second e.g: 0~59.
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*
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* @return rt_err_t if set success, return RT_EOK.
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*
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*/
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rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second)
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{
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time_t now;
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struct tm *p_tm;
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struct tm tm_new;
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rt_device_t device;
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rt_err_t ret = -RT_ERROR;
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/* get current time */
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now = time(RT_NULL);
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/* lock scheduler. */
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rt_enter_critical();
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/* converts calendar time time into local time. */
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p_tm = localtime(&now);
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/* copy the statically located variable */
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memcpy(&tm_new, p_tm, sizeof(struct tm));
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/* unlock scheduler. */
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rt_exit_critical();
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/* update time. */
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tm_new.tm_hour = hour;
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tm_new.tm_min = minute;
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tm_new.tm_sec = second;
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/* converts the local time in time to calendar time. */
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now = mktime(&tm_new);
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device = rt_device_find("rtc");
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if (device == RT_NULL)
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{
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return -RT_ERROR;
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}
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/* update to RTC device. */
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ret = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &now);
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return ret;
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}
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#ifdef RTC_SYNC_USING_NTP
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static void ntp_sync_thread_enrty(void *param)
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{
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extern time_t ntp_sync_to_rtc(void);
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/* first sync delay for network connect */
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rt_thread_delay(RTC_NTP_FIRST_SYNC_DELAY * RT_TICK_PER_SECOND);
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while (1)
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{
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ntp_sync_to_rtc();
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rt_thread_delay(RTC_NTP_SYNC_PERIOD * RT_TICK_PER_SECOND);
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}
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}
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int rt_rtc_ntp_sync_init(void)
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{
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static rt_bool_t init_ok = RT_FALSE;
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rt_thread_t thread;
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if (init_ok)
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{
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return 0;
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}
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thread = rt_thread_create("ntp_sync", ntp_sync_thread_enrty, RT_NULL, 1536, 26, 2);
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if (thread)
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{
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rt_thread_startup(thread);
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}
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else
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{
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return -RT_ENOMEM;
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}
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init_ok = RT_TRUE;
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return RT_EOK;
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}
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INIT_COMPONENT_EXPORT(rt_rtc_ntp_sync_init);
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#endif /* RTC_SYNC_USING_NTP */
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#ifdef RT_USING_FINSH
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#include <finsh.h>
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#include <rtdevice.h>
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void list_date(void)
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{
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time_t now;
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now = time(RT_NULL);
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rt_kprintf("%s\n", ctime(&now));
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}
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FINSH_FUNCTION_EXPORT(list_date, show date and time.)
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FINSH_FUNCTION_EXPORT(set_date, set date. e.g: set_date(2010,2,28))
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FINSH_FUNCTION_EXPORT(set_time, set time. e.g: set_time(23,59,59))
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#if defined(RT_USING_FINSH) && defined(FINSH_USING_MSH)
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static void date(uint8_t argc, char **argv)
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{
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if (argc == 1)
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{
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time_t now;
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/* output current time */
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now = time(RT_NULL);
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rt_kprintf("%s", ctime(&now));
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}
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else if (argc >= 7)
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{
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/* set time and date */
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uint16_t year;
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uint8_t month, day, hour, min, sec;
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year = atoi(argv[1]);
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month = atoi(argv[2]);
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day = atoi(argv[3]);
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hour = atoi(argv[4]);
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min = atoi(argv[5]);
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sec = atoi(argv[6]);
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if (year > 2099 || year < 2000)
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{
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rt_kprintf("year is out of range [2000-2099]\n");
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return;
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}
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if (month == 0 || month > 12)
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{
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rt_kprintf("month is out of range [1-12]\n");
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return;
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}
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if (day == 0 || day > 31)
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{
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rt_kprintf("day is out of range [1-31]\n");
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return;
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}
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if (hour > 23)
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{
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rt_kprintf("hour is out of range [0-23]\n");
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return;
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}
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if (min > 59)
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{
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rt_kprintf("minute is out of range [0-59]\n");
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return;
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}
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if (sec > 59)
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{
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rt_kprintf("second is out of range [0-59]\n");
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return;
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}
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set_time(hour, min, sec);
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set_date(year, month, day);
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}
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else
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{
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rt_kprintf("please input: date [year month day hour min sec] or date\n");
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rt_kprintf("e.g: date 2018 01 01 23 59 59 or date\n");
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}
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}
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MSH_CMD_EXPORT(date, get date and time or set [year month day hour min sec]);
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#endif /* defined(RT_USING_FINSH) && defined(FINSH_USING_MSH) */
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#endif /* RT_USING_FINSH */
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#endif /* RT_USING_RTC */
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