openharmony_kernel_liteos_m/kernel/arch/include/los_context.h

128 lines
3.7 KiB
C

/*
* 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.
*/
/**
* @defgroup los_hw hardware
* @ingroup kernel
*/
#ifndef _LOS_HW_H
#define _LOS_HW_H
#include "los_compiler.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
/* *
* @ingroup los_hw
* @brief: Task stack initialization.
*
* @par Description:
* This API is used to initialize the task stack.
*
* @attention:
* <ul><li>None.</li></ul>
*
* @param taskID [IN] Type#UINT32: TaskID.
* @param stackSize [IN] Type#UINT32: Total size of the stack.
* @param topStack [IN] Type#VOID *: Top of task's stack.
*
* @retval: context Type#TaskContext *.
* @par Dependency:
* <ul><li>los_hw.h: the header file that contains the API declaration.</li></ul>
* @see None.
*/
extern VOID *HalTskStackInit(UINT32 taskID, UINT32 stackSize, VOID *topStack);
/**
* @ingroup los_hw
* @brief: Function to sys exit.
*
* @par Description:
* This API is used to sys exit.
*
* @attention:
* <ul><li>None.</li></ul>
*
* @param None.
*
* @retval: None.
* @par Dependency:
* <ul><li>los_hw.h: the header file that contains the API declaration.</li></ul>
* @see None.
*/
LITE_OS_SEC_TEXT_MINOR VOID HalSysExit(VOID);
/* *
* @ingroup los_context
* @brief: Task scheduling Function.
*
* @par Description:
* This API is used to scheduling task.
*
* @attention:
* <ul><li>None.</li></ul>
*
* @param None.
*
* @retval: None.
* @par Dependency:
* <ul><li>los_context.h: the header file that contains the API declaration.</li></ul>
* @see None.
*/
extern VOID HalTaskSchedule(VOID);
typedef VOID (*OS_TICK_HANDLER)(VOID);
UINT32 HalStartSchedule(OS_TICK_HANDLER handler);
UINTPTR HalIntLock(VOID);
#define LOS_IntLock HalIntLock
VOID HalIntRestore(UINTPTR intSave);
#define LOS_IntRestore HalIntRestore
UINTPTR HalIntUnLock(VOID);
#define LOS_IntUnLock HalIntUnLock
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif /* _LOS_HW_H */