168 lines
3.9 KiB
C
168 lines
3.9 KiB
C
/*
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* Copyright (c) 2006-2022, Synwit Technology Co.,Ltd.
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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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* 2018-12-10 Zohar_Lee first version
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* 2020-07-10 lik format file
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*/
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#include "drv_rtc.h"
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#ifdef RT_USING_RTC
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#ifdef BSP_USING_RTC
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//#define DRV_DEBUG
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#define LOG_TAG "drv.rtc"
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#include <drv_log.h>
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static rt_rtc_dev_t swm_rtc_device;
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static uint32_t calcWeekDay(uint32_t year, uint32_t month, uint32_t date)
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{
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uint32_t i, cnt = 0;
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const uint32_t daysOfMonth[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
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for (i = 1; i < month; i++)
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cnt += daysOfMonth[i];
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cnt += date;
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if ((year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0)) && (month >= 3))
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cnt += 1;
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cnt += (year - 1901) * 365;
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for (i = 1901; i < year; i++)
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{
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if ((i % 4 == 0) && ((i % 100 != 0) || (i % 400 == 0)))
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cnt += 1;
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}
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return (cnt + 1) % 7;
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}
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static time_t swm_get_rtc_time_stamp(void)
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{
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RTC_DateTime get_datetime = {0};
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struct tm tm_new;
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RTC_GetDateTime(RTC, &get_datetime);
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tm_new.tm_sec = get_datetime.Second;
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tm_new.tm_min = get_datetime.Minute;
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tm_new.tm_hour = get_datetime.Hour;
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tm_new.tm_mday = get_datetime.Date;
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tm_new.tm_mon = get_datetime.Month - 1;
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tm_new.tm_year = get_datetime.Year - 1900;
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LOG_D("get rtc time.");
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return mktime(&tm_new);
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}
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static rt_err_t swm_set_rtc_time_stamp(time_t time_stamp)
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{
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RTC_DateTime set_datetime = {0};
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struct tm now;
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gmtime_r(&time_stamp, &now);
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set_datetime.Second = now.tm_sec;
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set_datetime.Minute = now.tm_min;
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set_datetime.Hour = now.tm_hour;
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set_datetime.Date = now.tm_mday;
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set_datetime.Month = now.tm_mon + 1;
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set_datetime.Year = now.tm_year + 1900;
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// set_datetime.Day = now.tm_wday;
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RTC_Stop(RTC);
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while (RTC->CFGABLE == 0)
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;
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RTC->MINSEC = (set_datetime.Second << RTC_MINSEC_SEC_Pos) |
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(set_datetime.Minute << RTC_MINSEC_MIN_Pos);
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RTC->DATHUR = (set_datetime.Hour << RTC_DATHUR_HOUR_Pos) |
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((set_datetime.Date) << RTC_DATHUR_DATE_Pos);
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RTC->MONDAY = (calcWeekDay(set_datetime.Year, set_datetime.Month, set_datetime.Date)
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<< RTC_MONDAY_DAY_Pos) |
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((set_datetime.Month) << RTC_MONDAY_MON_Pos);
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RTC->YEAR = set_datetime.Year;
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RTC->LOAD = 1 << RTC_LOAD_TIME_Pos;
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RTC_Start(RTC);
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LOG_D("set rtc time.");
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return RT_EOK;
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}
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static rt_err_t swm_rtc_configure(void)
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{
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RTC_InitStructure rtc_initstruct;
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rtc_initstruct.Year = 2020;
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rtc_initstruct.Month = 2;
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rtc_initstruct.Date = 28;
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rtc_initstruct.Hour = 23;
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rtc_initstruct.Minute = 59;
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rtc_initstruct.Second = 55;
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rtc_initstruct.SecondIEn = 0;
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rtc_initstruct.MinuteIEn = 0;
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RTC_Init(RTC, &rtc_initstruct);
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RTC_Start(RTC);
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return RT_EOK;
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}
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static rt_err_t swm_rtc_get_secs(time_t *args)
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{
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*args = swm_get_rtc_time_stamp();
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LOG_D("RTC: get rtc_time %x\n", *args);
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return RT_EOK;
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}
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static rt_err_t swm_rtc_set_secs(time_t *args)
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{
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rt_err_t result = RT_EOK;
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if (swm_set_rtc_time_stamp(*args))
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{
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result = -RT_ERROR;
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}
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LOG_D("RTC: set rtc_time %x\n", *args);
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return result;
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}
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static const struct rt_rtc_ops swm_rtc_ops =
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{
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.init = swm_rtc_configure,
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.get_secs = swm_rtc_get_secs,
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.set_secs = swm_rtc_set_secs,
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RT_NULL,
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RT_NULL,
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RT_NULL,
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RT_NULL,
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};
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int swm_rtc_init(void)
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{
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rt_err_t result;
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swm_rtc_configure();
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swm_rtc_device.ops = &swm_rtc_ops;
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result = rt_hw_rtc_register(&swm_rtc_device, "rtc", RT_DEVICE_FLAG_RDWR,RT_NULL);
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if (result != RT_EOK)
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{
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LOG_E("rtc register err code: %d", result);
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}
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else
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{
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LOG_D("rtc register success.");
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}
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return result;
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}
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INIT_DEVICE_EXPORT(swm_rtc_init);
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#endif /* BSP_USING_RTC */
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#endif /* RT_USING_RTC */
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