rt-thread-official/bsp/allwinner/libraries/drivers/drv_rtc.c

129 lines
2.9 KiB
C

/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-11-17 JasonHu first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include <string.h>
#include <time.h>
#include <rtdbg.h>
#include <sunxi_hal_rtc.h>
#ifdef RT_USING_RTC
static rt_err_t rtc_init(struct rt_device *dev)
{
if (hal_rtc_init() != 0)
{
LOG_E("init rtc hal failed!");
return -RT_ERROR;
}
return RT_EOK;
}
static rt_err_t rtc_control(rt_device_t dev, int cmd, void *args)
{
rt_err_t result = RT_EOK;
struct tm time_temp;
struct tm *time_now;
struct rtc_time hal_rtc_time;
switch (cmd)
{
case RT_DEVICE_CTRL_RTC_GET_TIME:
if (hal_rtc_gettime(&hal_rtc_time) != 0)
{
LOG_E("rtc gettime failed!\n");
return -RT_ERROR;
}
time_temp.tm_sec = hal_rtc_time.tm_sec;
time_temp.tm_min = hal_rtc_time.tm_min;
time_temp.tm_hour = hal_rtc_time.tm_hour;
time_temp.tm_mday = hal_rtc_time.tm_mday;
time_temp.tm_mon = hal_rtc_time.tm_mon;
time_temp.tm_year = hal_rtc_time.tm_year;
*((time_t *)args) = mktime(&time_temp);
break;
case RT_DEVICE_CTRL_RTC_SET_TIME:
rt_enter_critical();
/* converts calendar time time into local time. */
time_now = localtime((const time_t *)args);
/* copy the statically located variable */
memcpy(&time_temp, time_now, sizeof(struct tm));
/* unlock scheduler. */
rt_exit_critical();
hal_rtc_time.tm_sec = time_temp.tm_sec;
hal_rtc_time.tm_min = time_temp.tm_min;
hal_rtc_time.tm_hour = time_temp.tm_hour;
hal_rtc_time.tm_mday = time_temp.tm_mday;
hal_rtc_time.tm_mon = time_temp.tm_mon;
hal_rtc_time.tm_year = time_temp.tm_year;
if (hal_rtc_settime(&hal_rtc_time) != 0)
{
LOG_E("rtc settime failed!\n");
return -RT_ERROR;
}
break;
default:
return -RT_EINVAL;
}
return result;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops rt_hw_rtc_ops =
{
rtc_init,
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
rtc_control
};
#endif
int rt_hw_rtc_init(void)
{
rt_err_t ret = RT_EOK;
static struct rt_device rtc_dev;
rtc_dev.type = RT_Device_Class_RTC;
rtc_dev.rx_indicate = RT_NULL;
rtc_dev.tx_complete = RT_NULL;
#ifdef RT_USING_DEVICE_OPS
rtc_dev.ops = &rt_hw_rtc_ops;
#else
rtc_dev.init = rtc_init;
rtc_dev.open = RT_NULL;
rtc_dev.close = RT_NULL;
rtc_dev.read = RT_NULL;
rtc_dev.write = RT_NULL;
rtc_dev.control = rtc_control;
#endif
rtc_dev.user_data = RT_NULL;
#ifdef BSP_USING_RTC
ret = rt_device_register(&rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR);
#endif
return ret;
}
INIT_DEVICE_EXPORT(rt_hw_rtc_init);
#endif