6369e89502
* [posix] POSIX standard implementation for PSE51 - add some posix's interfaces that we haven't before. - these PR have passed the interface definition test across gcc platfrom; - have tested base on qemu-a9 and stm32h750-art-pi. * [newlib] only enable POSIX.1-1990 * update projects
87 lines
1.5 KiB
C
87 lines
1.5 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-05-07 Meco Man first Version
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*/
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#include <sys/types.h>
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#include <rtthread.h>
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#include <rthw.h>
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#define DBG_TAG "POSIX.delay"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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RT_WEAK void rt_hw_us_delay(rt_uint32_t us)
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{
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(void) us;
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LOG_W("Please consider implementing rt_hw_us_delay() in another file.");
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}
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void msleep(unsigned int msecs)
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{
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rt_thread_mdelay(msecs);
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}
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RTM_EXPORT(msleep);
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void ssleep(unsigned int seconds)
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{
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msleep(seconds * 1000);
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}
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RTM_EXPORT(ssleep);
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void mdelay(unsigned long msecs)
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{
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rt_hw_us_delay(msecs * 1000);
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}
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RTM_EXPORT(mdelay);
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void udelay(unsigned long usecs)
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{
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rt_hw_us_delay(usecs);
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}
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RTM_EXPORT(udelay);
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void ndelay(unsigned long nsecs)
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{
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rt_hw_us_delay(1);
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}
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RTM_EXPORT(ndelay);
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unsigned int sleep(unsigned int seconds)
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{
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if (rt_thread_self() != RT_NULL)
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{
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ssleep(seconds);
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}
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else /* scheduler has not run yet */
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{
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while(seconds > 0)
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{
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udelay(1000000u);
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seconds --;
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}
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}
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return 0;
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}
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RTM_EXPORT(sleep);
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int usleep(useconds_t usec)
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{
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if (rt_thread_self() != RT_NULL)
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{
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msleep(usec / 1000u);
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}
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else /* scheduler has not run yet */
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{
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udelay(usec / 1000u);
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}
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udelay(usec % 1000u);
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return 0;
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}
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RTM_EXPORT(usleep);
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