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/*
* Copyright (C) 2020, Huada Semiconductor Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-10-30 CDT first version
*/
#include "board.h"
#include <rtdbg.h>
#ifdef BSP_USING_RTC
static struct rt_device rtc;
static time_t hc32_rtc_get_time_stamp(void)
{
stc_rtc_time_t stcRtcTime = {0};
stc_rtc_date_t stcRtcDate = {0};
struct tm tm_new = {0};
RTC_GetTime(RTC_DATA_FORMAT_DEC, &stcRtcTime);
RTC_GetDate(RTC_DATA_FORMAT_DEC, &stcRtcDate);
tm_new.tm_sec = stcRtcTime.u8Second;
tm_new.tm_min = stcRtcTime.u8Minute;
tm_new.tm_hour = stcRtcTime.u8Hour;
tm_new.tm_mday = stcRtcDate.u8Day;
tm_new.tm_mon = stcRtcDate.u8Month - 1;
tm_new.tm_year = stcRtcDate.u8Year + 100;
tm_new.tm_wday = stcRtcDate.u8Weekday;
LOG_D("get rtc time.");
return mktime(&tm_new);
}
static rt_err_t hc32_rtc_set_time_stamp(time_t time_stamp)
{
stc_rtc_time_t stcRtcTime = {0};
stc_rtc_date_t stcRtcDate = {0};
struct tm *p_tm;
p_tm = localtime(&time_stamp);
if (p_tm->tm_year < 100)
{
return -RT_ERROR;
}
stcRtcTime.u8Second = p_tm->tm_sec ;
stcRtcTime.u8Minute = p_tm->tm_min ;
stcRtcTime.u8Hour = p_tm->tm_hour;
stcRtcDate.u8Day = p_tm->tm_mday;
stcRtcDate.u8Month = p_tm->tm_mon + 1 ;
stcRtcDate.u8Year = p_tm->tm_year - 100;
stcRtcDate.u8Weekday = p_tm->tm_wday;
if (Ok != RTC_SetTime(RTC_DATA_FORMAT_DEC, &stcRtcTime))
{
return -RT_ERROR;
}
if (Ok != RTC_SetDate(RTC_DATA_FORMAT_DEC, &stcRtcDate))
{
return -RT_ERROR;
}
LOG_D("set rtc time.");
return RT_EOK;
}
static rt_err_t hc32_rtc_init(struct rt_device *dev)
{
stc_rtc_init_t stcRtcInit;
#ifdef BSP_RTC_USING_XTAL32
stc_clk_xtal32_init_t stcXtal32Init;
/* Xtal32 config */
stcXtal32Init.u8Xtal32State = CLK_XTAL32_ON;
stcXtal32Init.u8Xtal32Drv = CLK_XTAL32DRV_HIGH;
stcXtal32Init.u8Xtal32NF = CLK_XTAL32NF_PART;
(void)CLK_Xtal32Init(&stcXtal32Init);
/* Waiting for XTAL32 stabilization */
rt_thread_delay(1000);
#endif
/* Reset RTC counter */
if (ErrorTimeout == RTC_DeInit())
{
return -RT_ERROR;
}
else
{
/* Configure structure initialization */
(void)RTC_StructInit(&stcRtcInit);
/* Configuration RTC structure */
#ifdef BSP_RTC_USING_XTAL32
stcRtcInit.u8ClockSource = RTC_CLOCK_SOURCE_XTAL32;
#else
stcRtcInit.u8ClockSource = RTC_CLOCK_SOURCE_RTCLRC;
#endif
stcRtcInit.u8HourFormat = RTC_HOUR_FORMAT_24;
(void)RTC_Init(&stcRtcInit);
/* Startup RTC count */
RTC_Cmd(Enable);
}
return RT_EOK;
}
static rt_err_t hc32_rtc_control(rt_device_t dev, int cmd, void *args)
{
rt_err_t result = RT_EOK;
RT_ASSERT(dev != RT_NULL);
switch (cmd)
{
case RT_DEVICE_CTRL_RTC_GET_TIME:
*(rt_uint32_t *)args = hc32_rtc_get_time_stamp();
LOG_D("RTC: get rtc_time %x\n", *(rt_uint32_t *)args);
break;
case RT_DEVICE_CTRL_RTC_SET_TIME:
if (hc32_rtc_set_time_stamp(*(rt_uint32_t *)args))
{
result = -RT_ERROR;
}
LOG_D("RTC: set rtc_time %x\n", *(rt_uint32_t *)args);
break;
default:
return RT_EINVAL;
}
return result;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops rtc_ops =
{
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
hc32_rtc_control
};
#endif
static rt_err_t rt_hw_rtc_register(rt_device_t device, const char *name, rt_uint32_t flag)
{
RT_ASSERT(device != RT_NULL);
if (hc32_rtc_init(device) != RT_EOK)
{
return -RT_ERROR;
}
#ifdef RT_USING_DEVICE_OPS
device->ops = &rtc_ops;
#else
device->init = RT_NULL;
device->open = RT_NULL;
device->close = RT_NULL;
device->read = RT_NULL;
device->write = RT_NULL;
device->control = hc32_rtc_control;
#endif
device->type = RT_Device_Class_RTC;
device->rx_indicate = RT_NULL;
device->tx_complete = RT_NULL;
device->user_data = RT_NULL;
/* register a character device */
return rt_device_register(device, name, flag);
}
int rt_hw_rtc_init(void)
{
rt_err_t result;
result = rt_hw_rtc_register(&rtc, "rtc", RT_DEVICE_FLAG_RDWR);
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);
#endif /* BSP_USING_RTC */
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