rt-thread/bsp/ls1cdev/drivers/drv_rtc.c

178 lines
3.8 KiB
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-05-05 sundm75 first version
*/
/* Includes ------------------------------------------------------------------*/
#include "board.h"
#include "drv_rtc.h"
#include <rtdevice.h>
#include "../libraries/ls1c_regs.h"
#include "../libraries/ls1c_rtc.h"
//#define RT_RTC_DEBUG
#if defined(RT_USING_RTC)
#ifdef RT_RTC_DEBUG
#define rtc_debug(format,args...) rt_kprintf(format, ##args)
#else
#define rtc_debug(format,args...)
#endif
static struct rt_device rtc;
RTC_TypeDef * RTC_Handler;
static time_t get_timestamp(void)
{
struct tm tm_new = {0};
RTC_TimeTypeDef rtcDate;
RTC_GetTime(RTC_Handler, &rtcDate);
tm_new.tm_sec = rtcDate.Seconds;
tm_new.tm_min = rtcDate.Minutes;
tm_new.tm_hour = rtcDate.Hours;
tm_new.tm_mday = rtcDate.Date;
tm_new.tm_mon = rtcDate.Month- 1;
tm_new.tm_year = rtcDate.Year + 2000 - 1900;
return mktime(&tm_new);
}
static int set_timestamp(time_t timestamp)
{
struct tm *p_tm;
RTC_TimeTypeDef rtcDate;
p_tm = localtime(&timestamp);
rtcDate.Seconds= p_tm->tm_sec ;
rtcDate.Minutes= p_tm->tm_min ;
rtcDate.Hours= p_tm->tm_hour;
rtcDate.Date= p_tm->tm_mday;
rtcDate.Month= p_tm->tm_mon + 1;
rtcDate.Year= p_tm->tm_year + 1900 - 2000;
RTC_SetTime(RTC_Handler, &rtcDate);
rt_kprintf("\r\nrtcDate is %d.%d.%d - %d:%d:%d",rtcDate.Year, rtcDate.Month, rtcDate.Date, rtcDate.Hours, rtcDate.Minutes, rtcDate.Seconds);
return RT_EOK;
}
rt_uint8_t RTC_Init(void)
{
RTC_Handler = RTC;
return 0;
}
static rt_err_t rt_rtc_open(rt_device_t dev, rt_uint16_t oflag)
{
if (dev->rx_indicate != RT_NULL)
{
/* Open Interrupt */
}
return RT_EOK;
}
static rt_size_t rt_rtc_read(
rt_device_t dev,
rt_off_t pos,
void* buffer,
rt_size_t size)
{
return 0;
}
/**
* This function configure RTC device.
*
* @param dev, pointer to device descriptor.
* @param cmd, RTC control command.
*
* @return the error code.
*/
static rt_err_t rt_rtc_control(rt_device_t dev, int cmd, void *args)
{
rt_err_t result;
RT_ASSERT(dev != RT_NULL);
switch (cmd)
{
case RT_DEVICE_CTRL_RTC_GET_TIME:
*(rt_uint32_t *)args = get_timestamp();
rtc_debug("RTC: get rtc_time %x\n", *(rt_uint32_t *)args);
break;
case RT_DEVICE_CTRL_RTC_SET_TIME:
{
result = set_timestamp(*(rt_uint32_t *)args);
rtc_debug("RTC: set rtc_time %x\n", *(rt_uint32_t *)args);
}
break;
}
return result;
}
/**
* This function register RTC device.
*
* @param device, pointer to device descriptor.
* @param name, device name.
* @param flag, configuration flags.
*
* @return the error code.
*/
rt_err_t rt_hw_rtc_register(
rt_device_t device,
const char *name,
rt_uint32_t flag)
{
RT_ASSERT(device != RT_NULL);
device->type = RT_Device_Class_RTC;
device->rx_indicate = RT_NULL;
device->tx_complete = RT_NULL;
device->init = RT_NULL;
device->open = rt_rtc_open;
device->close = RT_NULL;
device->read = rt_rtc_read;
device->write = RT_NULL;
device->control = rt_rtc_control;
device->user_data = RT_NULL; /* no private */
/* register a character device */
return rt_device_register(device, name, RT_DEVICE_FLAG_RDWR | flag);
}
/**
* This function initialize RTC module related hardware and register RTC device to kernel.
*
* @param none.
*
* @return the error code.
*/
int rt_hw_rtc_init(void)
{
RTC_Init();
/* register rtc device */
rt_hw_rtc_register(&rtc, RT_RTC_NAME, 0);
return RT_EOK;
}
INIT_BOARD_EXPORT(rt_hw_rtc_init);
#endif