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/*
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "los_sys_pri.h"
#include "los_sched_pri.h"
#define OS_MAX_VALUE 0xFFFFFFFFUL
LITE_OS_SEC_TEXT_MINOR UINT64 LOS_TickCountGet(VOID)
{
return OsGetCurrSchedTimeCycle() / OS_CYCLE_PER_TICK;
}
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_CyclePerTickGet(VOID)
{
return g_sysClock / LOSCFG_BASE_CORE_TICK_PER_SECOND;
}
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_MS2Tick(UINT32 millisec)
{
if (millisec == OS_MAX_VALUE) {
return OS_MAX_VALUE;
}
return ((UINT64)millisec * LOSCFG_BASE_CORE_TICK_PER_SECOND) / OS_SYS_MS_PER_SECOND;
}
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_Tick2MS(UINT32 tick)
{
return ((UINT64)tick * OS_SYS_MS_PER_SECOND) / LOSCFG_BASE_CORE_TICK_PER_SECOND;
}
LITE_OS_SEC_TEXT_MINOR UINT32 OsNS2Tick(UINT64 nanoseconds)
{
const UINT32 nsPerTick = OS_SYS_NS_PER_SECOND / LOSCFG_BASE_CORE_TICK_PER_SECOND;
UINT64 ticks = (nanoseconds + nsPerTick - 1) / nsPerTick;
if (ticks > OS_MAX_VALUE) {
ticks = OS_MAX_VALUE;
}
return (UINT32)ticks;
}