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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-05-07 Meco Man first Version
*/
#include <sys/types.h>
#include <rtthread.h>
#include <rthw.h>
/**
* @brief Delays the execution of the current thread for the specified number of milliseconds.
*
* @param msecs The number of milliseconds to sleep.
*/
void msleep(unsigned int msecs)
{
rt_thread_mdelay(msecs);
}
RTM_EXPORT(msleep);
/**
* @brief Delays the execution of the current thread for the specified number of seconds.
*
* @param seconds The number of seconds to sleep.
*/
void ssleep(unsigned int seconds)
{
msleep(seconds * 1000);
}
RTM_EXPORT(ssleep);
/**
* @brief Delays the execution of the current thread for the specified number of milliseconds.
*
* @param msecs The number of milliseconds to delay.
*/
void mdelay(unsigned long msecs)
{
rt_hw_us_delay(msecs * 1000);
}
RTM_EXPORT(mdelay);
/**
* @brief Delays the execution of the current thread for the specified number of microseconds.
*
* @param usecs The number of microseconds to delay.
*/
void udelay(unsigned long usecs)
{
rt_hw_us_delay(usecs);
}
RTM_EXPORT(udelay);
/**
* @brief Delays the execution of the current thread for approximately one microsecond.
*
* @param nsecs This parameter is ignored.
*/
void ndelay(unsigned long nsecs)
{
rt_hw_us_delay(1);
}
RTM_EXPORT(ndelay);
/**
* @brief Delays the execution of the current thread for the specified number of seconds.
*
* @param seconds The number of seconds to sleep.
*
* @return Returns 0 on success.
*/
unsigned int sleep(unsigned int seconds)
{
if (rt_thread_self() != RT_NULL)
{
ssleep(seconds);
}
else /* scheduler has not run yet */
{
while(seconds > 0)
{
udelay(1000000u);
seconds --;
}
}
return 0;
}
RTM_EXPORT(sleep);
/**
* @brief Delays the execution of the current thread for the specified number of microseconds.
*
* @param usec The number of microseconds to sleep.
*
* @return Returns 0 on success.
*/
int usleep(useconds_t usec)
{
if (rt_thread_self() != RT_NULL)
{
msleep(usec / 1000u);
udelay(usec % 1000u);
}
else /* scheduler has not run yet */
{
udelay(usec);
}
return 0;
}
RTM_EXPORT(usleep);
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