openharmony_kernel_liteos_m/kernel/base/include/los_tick_pri.h

127 lines
3.5 KiB
C
Executable File

/*
* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020, 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.
*/
#ifndef _LOS_TICK_PRI_H
#define _LOS_TICK_PRI_H
#include "los_tick.h"
#include "los_config.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
/**
* @ingroup los_tick
* Count of Ticks
*/
extern UINT64 g_ullTickCount;
/**
* @ingroup los_tick
* Ticks per second
*/
extern UINT32 g_ticksPerSec;
/**
* @ingroup los_tick
* Cycles per Second
*/
extern UINT32 g_uwCyclePerSec;
/**
* @ingroup los_tick
* Cycles per Tick
*/
extern UINT32 g_cyclesPerTick;
/**
* @ingroup los_tick
* System Clock
*/
extern UINT32 g_sysClock;
/**
* @ingroup los_tick
* @brief Handle the system tick timeout.
*
* @par Description:
* This API is called when the system tick timeout and triggers the interrupt.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @param none.
*
* @retval None.
* @par Dependency:
* <ul><li>los_tick_pri.h: the header file that contains the API declaration.</li></ul>
* @see None.
*/
extern VOID OsTickHandler(VOID);
#if (LOSCFG_KERNEL_TICKLESS == YES)
LITE_OS_SEC_TEXT VOID OsTickHandlerLoop(UINT32 elapseTicks);
#endif
/**
* @ingroup los_tick
* @brief tick modul init.
*
* @par Description:
* This API is called when the system initializating.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @param systemClock [IN] Type #UINT32 SystemClock.
* @param tickPerSecond [IN] Type #UINT32 TickPerSecond.
*
* @retval None.
* @par Dependency:
* <ul><li>los_tick_pri.h: the header file that contains the API declaration.</li></ul>
* @see None.
*/
extern UINT32 OsTickInit(UINT32 systemClock, UINT32 tickPerSecond);
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif /* _LOS_TICK_PRI_H */