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/* ----------------------------------------------------------------------------
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* Copyright (c) Huawei Technologies Co., Ltd. 2013-2019. All rights reserved.
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* Description: Tickless
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* Author: Huawei LiteOS Team
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* Create: 2013-01-01
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --------------------------------------------------------------------------- */
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/*这些代码主要用于开启和关闭 Tickless 模式，提供了 Tickless 相关操作接口和功能。*/
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/**
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* @defgroup los_tickless Tickless
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* @ingroup kernel
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*/
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#ifndef _LOS_TICKLESS_H
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#define _LOS_TICKLESS_H
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#include "los_typedef.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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/**
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* @ingroup los_tickless
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* @brief enable the tickless mode.
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*
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* @par Description:
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* This API is used to enable the tickless mode. In the mode, system changes from
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* periodic clock mode to dynamic clock mode.
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*
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* @attention
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* None.
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*
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* @param None.
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*
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* @retval None.
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* @par Dependency:
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* <ul><li>los_tickless.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_TicklessDisable
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* @since Huawei LiteOS V200R001C00
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*/
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extern VOID LOS_TicklessEnable(VOID);
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/*这段代码声明了一个函数LOS_TicklessEnable，用于启用tickless模式。
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LOS_TicklessEnable函数的功能是启用tickless模式。在这种模式下，系统从周期性时钟模式切换到动态时钟模式，能够有效地减少系统的功耗*/
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/**
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* @ingroup los_tickless
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* @brief disable the tickless mode.
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*
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* @par Description:
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* This API is used to disable the tickless mode. System will not change from
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* periodic clock mode to dynamic clock mode.
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*
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* @attention
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* None.
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*
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* @param None.
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*
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* @retval None.
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* @par Dependency:
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* <ul><li>los_tickless.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_TicklessEnable
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* @since Huawei LiteOS V200R001C00
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*/
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extern VOID LOS_TicklessDisable(VOID);
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/*这段代码声明了一个函数LOS_TicklessDisable，用于禁用tickless模式。
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LOS_TicklessDisable函数的功能是禁用tickless模式。在这种模式下，系统从动态时钟模式切换回周期性时钟模式，系统将会以固定的时间间隔来产生时钟中断。*/
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif
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