93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/****************************************************************************
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* sched/clock/clock_systime_timespec.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <time.h>
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#include <assert.h>
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#include <errno.h>
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#include <nuttx/arch.h>
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#include <nuttx/clock.h>
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#include <nuttx/spinlock.h>
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#include "clock/clock.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: clock_systime_timespec
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*
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* Description:
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* Return the current value of the system timer counter as a struct
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* timespec. The returned time is the elapsed time since power up.
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*
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* Input Parameters:
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* ts - Location to return the time
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*
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* Returned Value:
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* Current version almost always returns OK. Currently errors are
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* possible with CONFIG_RTC_HIRES only.
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*
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* Assumptions:
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*
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****************************************************************************/
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int clock_systime_timespec(FAR struct timespec *ts)
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{
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#ifdef CONFIG_RTC_HIRES
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if (g_rtc_enabled)
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{
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irqstate_t flags;
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up_rtc_gettime(ts);
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flags = spin_lock_irqsave(NULL);
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clock_timespec_subtract(ts, &g_basetime, ts);
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spin_unlock_irqrestore(NULL, flags);
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}
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else
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{
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ts->tv_sec = 0;
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ts->tv_nsec = 0;
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}
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#elif defined(CONFIG_SCHED_TICKLESS_TICK_ARGUMENT)
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clock_t ticks = 0;
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up_timer_gettick(&ticks);
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clock_ticks2time(ts, ticks);
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#elif defined(CONFIG_SCHED_TICKLESS)
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up_timer_gettime(ts);
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#else
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clock_ticks2time(ts, g_system_ticks);
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#endif
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return 0;
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}
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