124 lines
2.8 KiB
C
124 lines
2.8 KiB
C
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/*
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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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* 2021-08-31 AisinoChip first add to bsp
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*/
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#include "board.h"
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#include <sys/time.h>
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#include <rtdevice.h>
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#ifdef BSP_USING_RTC
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static RTC_ConfigTypeDef RTC_Handle;
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rt_inline rt_uint8_t dec2hex(rt_uint8_t dec)
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{
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return ((dec / 10) << 4) + (dec % 10);
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}
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rt_inline rt_uint8_t hex2dec(rt_uint8_t hex)
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{
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return ((hex / 16) * 10) + (hex % 16);
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}
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static time_t get_rtc_timestamp(void)
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{
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RTC_TimeTypeDef RTC_TimeStruct = {0};
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RTC_DateTypeDef RTC_DateStruct = {0};
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struct tm tm_new = {0};
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HAL_RTC_GetTime(&RTC_TimeStruct);
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HAL_RTC_GetDate(&RTC_DateStruct);
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tm_new.tm_sec = hex2dec(RTC_TimeStruct.u8_Seconds);
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tm_new.tm_min = hex2dec(RTC_TimeStruct.u8_Minutes);
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tm_new.tm_hour = hex2dec(RTC_TimeStruct.u8_Hours);
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tm_new.tm_mday = hex2dec(RTC_DateStruct.u8_Date);
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tm_new.tm_mon = hex2dec(RTC_DateStruct.u8_Month) - 1;
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tm_new.tm_year = hex2dec(RTC_DateStruct.u8_Year) + 100;
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return timegm(&tm_new);
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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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RTC_TimeTypeDef RTC_TimeStruct = {0};
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RTC_DateTypeDef RTC_DateStruct = {0};
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struct tm *p_tm;
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p_tm = gmtime(&time_stamp);
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if (p_tm->tm_year < 100)
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{
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return -RT_ERROR;
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}
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RTC_TimeStruct.u8_Seconds = dec2hex(p_tm->tm_sec);
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RTC_TimeStruct.u8_Minutes = dec2hex(p_tm->tm_min);
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RTC_TimeStruct.u8_Hours = dec2hex(p_tm->tm_hour);
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RTC_DateStruct.u8_Date = dec2hex(p_tm->tm_mday);
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RTC_DateStruct.u8_Month = dec2hex(p_tm->tm_mon + 1);
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RTC_DateStruct.u8_Year = dec2hex(p_tm->tm_year - 100);
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RTC_DateStruct.u8_WeekDay = dec2hex(p_tm->tm_wday) + 1;
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HAL_RTC_SetTime(&RTC_TimeStruct);
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HAL_RTC_SetDate(&RTC_DateStruct);
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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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RTC_Handle.u32_ClockSource = RTC_CLOCK_XTL;
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RTC_Handle.u32_Compensation = COMPENSATION_INCREASE;
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RTC_Handle.u32_CompensationValue = 0x05;
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HAL_RTC_Config(&RTC_Handle);
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return RT_EOK;
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}
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static rt_err_t _rtc_get_secs(void *args)
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{
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*(rt_uint32_t *)args = get_rtc_timestamp();
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return RT_EOK;
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}
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static rt_err_t _rtc_set_secs(void *args)
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{
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rt_err_t result = RT_EOK;
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if (set_rtc_time_stamp(*(rt_uint32_t *)args))
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{
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result = -RT_ERROR;
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}
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return result;
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}
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static const struct rt_rtc_ops acm32_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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RT_NULL,
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RT_NULL,
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};
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static rt_rtc_dev_t acm32_rtc_dev;
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static int rt_hw_rtc_init(void)
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{
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acm32_rtc_dev.ops = &acm32_rtc_ops;
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return rt_hw_rtc_register(&acm32_rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR, RT_NULL);
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}
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INIT_DEVICE_EXPORT(rt_hw_rtc_init);
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#endif /* BSP_USING_RTC */
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