25 lines
486 B
C
25 lines
486 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <timer.h>
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#include <delay.h>
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#include <thread.h>
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__weak void init_timer(void) { /* do nothing */ }
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void udelay(unsigned int usec)
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{
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struct stopwatch sw;
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/*
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* As the timer granularity is in microseconds pad the
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* requested delay by one to get at least >= requested usec delay.
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*/
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usec += 1;
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if (!thread_yield_microseconds(usec))
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return;
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stopwatch_init_usecs_expire(&sw, usec);
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stopwatch_wait_until_expired(&sw);
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}
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