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/*
* Copyright (c) 2006-2022, Synwit Technology Co.,Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-07-01 lik first version
*/
#include "drv_rtc.h"
#ifdef RT_USING_RTC
#ifdef BSP_USING_RTC
//#define DRV_DEBUG
#define LOG_TAG "drv.rtc"
#include <drv_log.h>
static rt_rtc_dev_t swm_rtc_device;
static uint32_t calcWeekDay(uint32_t year, uint32_t month, uint32_t date)
{
uint32_t i, cnt = 0;
const uint32_t daysOfMonth[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
for (i = 1; i < month; i++)
cnt += daysOfMonth[i];
cnt += date;
if ((year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0)) && (month >= 3))
cnt += 1;
cnt += (year - 1901) * 365;
for (i = 1901; i < year; i++)
{
if ((i % 4 == 0) && ((i % 100 != 0) || (i % 400 == 0)))
cnt += 1;
}
return (cnt + 1) % 7;
}
static time_t swm_get_rtc_time_stamp(void)
{
RTC_DateTime get_datetime = {0};
struct tm tm_new;
RTC_GetDateTime(RTC, &get_datetime);
tm_new.tm_sec = get_datetime.Second;
tm_new.tm_min = get_datetime.Minute;
tm_new.tm_hour = get_datetime.Hour;
tm_new.tm_mday = get_datetime.Date;
tm_new.tm_mon = get_datetime.Month - 1;
tm_new.tm_year = get_datetime.Year - 1900;
LOG_D("get rtc time.");
return mktime(&tm_new);
}
static rt_err_t swm_set_rtc_time_stamp(time_t time_stamp)
{
RTC_DateTime set_datetime = {0};
struct tm now;
gmtime_r(&time_stamp, &now);
set_datetime.Second = now.tm_sec;
set_datetime.Minute = now.tm_min;
set_datetime.Hour = now.tm_hour;
set_datetime.Date = now.tm_mday;
set_datetime.Month = now.tm_mon + 1;
set_datetime.Year = now.tm_year + 1900;
// set_datetime.Day = now.tm_wday;
RTC_Stop(RTC);
while (RTC->CFGABLE == 0)
;
RTC->MINSEC = (set_datetime.Second << RTC_MINSEC_SEC_Pos) |
(set_datetime.Minute << RTC_MINSEC_MIN_Pos);
RTC->DATHUR = (set_datetime.Hour << RTC_DATHUR_HOUR_Pos) |
((set_datetime.Date) << RTC_DATHUR_DATE_Pos);
RTC->MONDAY = (calcWeekDay(set_datetime.Year, set_datetime.Month, set_datetime.Date)
<< RTC_MONDAY_DAY_Pos) |
((set_datetime.Month) << RTC_MONDAY_MON_Pos);
RTC->YEAR = set_datetime.Year;
RTC->LOAD = 1 << RTC_LOAD_TIME_Pos;
RTC_Start(RTC);
LOG_D("set rtc time.");
return RT_EOK;
}
static rt_err_t swm_rtc_configure(void)
{
RTC_InitStructure rtc_initstruct;
rtc_initstruct.clksrc = RTC_CLKSRC_XTAL32K;
rtc_initstruct.Year = 2020;
rtc_initstruct.Month = 2;
rtc_initstruct.Date = 28;
rtc_initstruct.Hour = 23;
rtc_initstruct.Minute = 59;
rtc_initstruct.Second = 55;
rtc_initstruct.SecondIEn = 0;
rtc_initstruct.MinuteIEn = 0;
RTC_Init(RTC, &rtc_initstruct);
RTC_Start(RTC);
return RT_EOK;
}
static rt_err_t swm_rtc_get_secs(time_t *args)
{
*args = swm_get_rtc_time_stamp();
LOG_D("RTC: get rtc_time %x\n", *args);
return RT_EOK;
}
static rt_err_t swm_rtc_set_secs(time_t *args)
{
rt_err_t result = RT_EOK;
if (swm_set_rtc_time_stamp(*args))
{
result = -RT_ERROR;
}
LOG_D("RTC: set rtc_time %x\n", *args);
return result;
}
static const struct rt_rtc_ops swm_rtc_ops =
{
.init = swm_rtc_configure,
.get_secs = swm_rtc_get_secs,
.set_secs = swm_rtc_set_secs,
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
};
int swm_rtc_init(void)
{
rt_err_t result;
swm_rtc_configure();
swm_rtc_device.ops = &swm_rtc_ops;
result = rt_hw_rtc_register(&swm_rtc_device, "rtc", RT_DEVICE_FLAG_RDWR,RT_NULL);
if (result != RT_EOK)
{
LOG_E("rtc register err code: %d", result);
}
else
{
LOG_D("rtc register success.");
}
return result;
}
INIT_DEVICE_EXPORT(swm_rtc_init);
#endif /* BSP_USING_RTC */
#endif /* RT_USING_RTC */
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