108 lines
3.3 KiB
C
Executable File
108 lines
3.3 KiB
C
Executable File
/*
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* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
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*
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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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*
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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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*
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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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*
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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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*
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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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/**
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* @defgroup los_tick Tick
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* @ingroup kernel
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*/
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#ifndef _LOS_TICK_H
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#define _LOS_TICK_H
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#include "los_errno.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_tick
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* Tick error code: The Tick configuration is incorrect.
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*
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* Value: 0x02000400
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*
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* Solution: Change values of the OS_SYS_CLOCK and LOSCFG_BASE_CORE_TICK_PER_SECOND
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* system time configuration modules in Los_config.h.
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*/
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#define LOS_ERRNO_TICK_CFG_INVALID LOS_ERRNO_OS_ERROR(LOS_MOD_TICK, 0x00)
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/**
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* @ingroup los_tick
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* Tick error code: This error code is not in use temporarily.
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*
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* Value: 0x02000401
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*
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* Solution: None.
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*/
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#define LOS_ERRNO_TICK_NO_HWTIMER LOS_ERRNO_OS_ERROR(LOS_MOD_TICK, 0x01)
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/**
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* @ingroup los_tick
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* Tick error code: The number of Ticks is too small.
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*
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* Value: 0x02000402
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*
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* Solution: Change values of the OS_SYS_CLOCK and LOSCFG_BASE_CORE_TICK_PER_SECOND
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* system time configuration modules according to the SysTick_Config function.
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*/
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#define LOS_ERRNO_TICK_PER_SEC_TOO_SMALL LOS_ERRNO_OS_ERROR(LOS_MOD_TICK, 0x02)
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/**
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* @ingroup los_tick
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* @brief: System clock get function.
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*
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* @par Description:
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* This API is used to get system clock.
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*
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* @attention:
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* <ul><li>None.</li></ul>
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*
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* @param: None.
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*
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* @retval: system clock.
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*
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* @par Dependency:
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* <ul><li>los_tick.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*
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* */
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extern UINT32 LOS_SysClockGet(VOID);
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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 /* _LOS_TICK_H */
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