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