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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2024-01-13 ChuShicheng first version
*/
#include "board.h"
#include <rtdevice.h>
#include "hardware/rtc.h"
#include "pico/util/datetime.h"
#define DBG_LEVEL DBG_LOG
#include <rtdbg.h>
#define LOG_TAG "DRV.RTC"
struct rtc_device_object
{
rt_rtc_dev_t rtc_dev;
};
static struct rtc_device_object rtc_device;
static rt_err_t pico_rtc_get_timeval(struct timeval *tv)
{
datetime_t t;
struct tm tm_new = {0};
rtc_get_datetime(&t);
tm_new.tm_sec = t.sec;
tm_new.tm_min = t.min;
tm_new.tm_hour = t.hour;
tm_new.tm_wday = t.dotw;
tm_new.tm_mday = t.day;
tm_new.tm_mon = t.month - 1;
tm_new.tm_year = t.year - 1900;
tv->tv_sec = timegm(&tm_new);
return RT_EOK;
}
static rt_err_t pico_rtc_init(void)
{
rtc_init();
datetime_t t;
t.sec = 0 ;
t.min = 0;
t.hour = 0;
t.day = 01;
t.month = 01;
t.year = 1970;
t.dotw = 4;
rtc_set_datetime(&t);
return RT_EOK;
}
static rt_err_t pico_rtc_get_secs(time_t *sec)
{
struct timeval tv;
pico_rtc_get_timeval(&tv);
*(time_t *) sec = tv.tv_sec;
LOG_D("RTC: get rtc_time %d", *sec);
return RT_EOK;
}
static rt_err_t pico_rtc_set_secs(time_t *sec)
{
rt_err_t result = RT_EOK;
datetime_t t;
struct tm tm = {0};
gmtime_r(sec, &tm);
t.sec = tm.tm_sec ;
t.min = tm.tm_min ;
t.hour = tm.tm_hour;
t.day = tm.tm_mday;
t.month = tm.tm_mon + 1;
t.year = tm.tm_year + 1900;
t.dotw = tm.tm_wday;
rtc_set_datetime(&t);
LOG_D("RTC: set rtc_time");
#ifdef RT_USING_ALARM
rt_alarm_update(&rtc_device.rtc_dev.parent, 1);
#endif
return result;
}
static const struct rt_rtc_ops pico_rtc_ops =
{
pico_rtc_init,
pico_rtc_get_secs,
pico_rtc_set_secs,
RT_NULL,
RT_NULL,
pico_rtc_get_timeval,
RT_NULL,
};
static int rt_hw_rtc_init(void)
{
rt_err_t result;
rtc_device.rtc_dev.ops = &pico_rtc_ops;
result = rt_hw_rtc_register(&rtc_device.rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR, RT_NULL);
if (result != RT_EOK)
{
LOG_E("rtc register err code: %d", result);
return result;
}
LOG_D("rtc init success");
return RT_EOK;
}
INIT_DEVICE_EXPORT(rt_hw_rtc_init);
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