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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
#include <sys/time.h>
#include <rtthread.h>
#ifdef RT_USING_DEVICE
int gettimeofday(struct timeval *tp, void *ignore)
{
time_t time;
rt_device_t device;
device = rt_device_find("rtc");
if (device != RT_NULL)
{
rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time);
if (tp != RT_NULL)
{
tp->tv_sec = time;
tp->tv_usec = 0;
}
return time;
}
return 0;
}
#endif
/**
* Returns the current time.
*
* @param time_t * t the timestamp pointer, if not used, keep NULL.
*
* @return time_t return timestamp current.
*
*/
/* for IAR 6.2 later Compiler */
#if defined (__IAR_SYSTEMS_ICC__) && (__VER__) >= 6020000
#pragma module_name = "?time"
time_t (__time32)(time_t *t) /* Only supports 32-bit timestamp */
#else
time_t time(time_t *t)
#endif
{
time_t time_now = 0;
#ifdef RT_USING_RTC
static rt_device_t device = RT_NULL;
/* optimization: find rtc device only first. */
if (device == RT_NULL)
{
device = rt_device_find("rtc");
}
/* read timestamp from RTC device. */
if (device != RT_NULL)
{
if (rt_device_open(device, 0) == RT_EOK)
{
rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time_now);
rt_device_close(device);
}
}
#endif /* RT_USING_RTC */
/* if t is not NULL, write timestamp to *t */
if (t != RT_NULL)
{
*t = time_now;
}
return time_now;
}
RT_WEAK clock_t clock(void)
{
return rt_tick_get();
}
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