168 lines
3.2 KiB
C
168 lines
3.2 KiB
C
/*
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* Copyright (c) 2006-2022, 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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* 2022-07-25 Rbb666 first version
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <sys/time.h>
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#include "drv_common.h"
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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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cyhal_rtc_t rtc_obj;
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static rt_rtc_dev_t ifx32_rtc_dev;
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static int get_day_of_week(int day, int month, int year)
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{
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int ret;
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int k = 0;
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int j = 0;
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if (month < CY_RTC_MARCH)
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{
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month += CY_RTC_MONTHS_PER_YEAR;
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year--;
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}
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k = (year % 100);
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j = (year / 100);
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ret = (day + (13 * (month + 1) / 5) + k + (k / 4) + (j / 4) + (5 * j)) % 7;
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ret = ((ret + 6) % 7);
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return ret;
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}
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static rt_err_t set_rtc_time_stamp(time_t time_stamp)
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{
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struct tm tm = {0};
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struct tm new_time = {0};
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gmtime_r(&time_stamp, &tm);
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if (tm.tm_year < 100)
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{
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return -RT_ERROR;
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}
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new_time.tm_sec = tm.tm_sec ;
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new_time.tm_min = tm.tm_min ;
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new_time.tm_hour = tm.tm_hour;
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new_time.tm_mday = tm.tm_mday;
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new_time.tm_mon = tm.tm_mon;
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new_time.tm_year = tm.tm_year;
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new_time.tm_wday = get_day_of_week(tm.tm_mday, tm.tm_mon, tm.tm_year);
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if (cyhal_rtc_write(&rtc_obj, &new_time) != RT_EOK)
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{
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return -RT_ERROR;
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}
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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 ifx_rtc_get_timeval(struct timeval *tv)
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{
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struct tm tm_new = {0};
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struct tm date_time = {0};
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cyhal_rtc_read(&rtc_obj, &date_time);
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tm_new.tm_sec = date_time.tm_sec;
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tm_new.tm_min = date_time.tm_min;
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tm_new.tm_hour = date_time.tm_hour;
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tm_new.tm_mday = date_time.tm_mday;
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tm_new.tm_mon = date_time.tm_mon;
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tm_new.tm_year = date_time.tm_year;
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tv->tv_sec = timegm(&tm_new);
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return RT_EOK;
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}
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static rt_err_t _rtc_init(void)
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{
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if (cyhal_rtc_init(&rtc_obj) != RT_EOK)
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{
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LOG_E("rtc init failed.");
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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static rt_err_t _rtc_get_secs(time_t *sec)
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{
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struct timeval tv;
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ifx_rtc_get_timeval(&tv);
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*(time_t *) sec = tv.tv_sec;
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LOG_D("RTC: get rtc_time %d", *sec);
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return RT_EOK;
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}
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static rt_err_t _rtc_set_secs(time_t *sec)
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{
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rt_err_t result = RT_EOK;
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if (set_rtc_time_stamp(*sec))
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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 %d", *sec);
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return result;
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}
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static const struct rt_rtc_ops _rtc_ops =
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{
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_rtc_init,
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_rtc_get_secs,
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_rtc_set_secs,
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RT_NULL,
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RT_NULL,
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ifx_rtc_get_timeval,
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RT_NULL,
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};
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/**
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* @brief RTC initialization function.
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*
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* @return RT_EOK indicates successful initialization, other value indicates failed;
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*/
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static int rt_hw_rtc_init(void)
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{
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rt_err_t result = RT_EOK;
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ifx32_rtc_dev.ops = &_rtc_ops;
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if (rt_hw_rtc_register(&ifx32_rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR, RT_NULL) != RT_EOK)
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{
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LOG_E("rtc init failed");
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result = RT_ERROR;
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}
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else
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{
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LOG_D("rtc init success");
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}
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return result;
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}
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INIT_DEVICE_EXPORT(rt_hw_rtc_init);
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#endif
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