openharmony_kernel_liteos_m/arch/include/los_timer.h

112 lines
3.4 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.
*/
#ifndef _LOS_TIMER_H
#define _LOS_TIMER_H
#include "los_compiler.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
#define TICK_CHECK 0x4000000
#define CYCLE_CHECK 0xFFFFFFFFU
#define SHIFT_32_BIT 32
#define MAX_HOUR 24
#define MAX_MINUTES 60
#define MAX_SECONDS 60
#define MILSEC 1000
#define RTC_WAKEUPCLOCK_RTCCLK 32768
#define RTC_WAKEUPCLOCK_RTCCLK_DIV 16
#define RTC_CALIBRATE_SLEEP_TIME 8
#define MACHINE_CYCLE_DEALAY_TIMES (LOSCFG_BASE_CORE_TICK_PER_SECOND << 2)
VOID HalTickLock(VOID);
VOID HalTickUnlock(VOID);
UINT32 HalEnterSleep(VOID);
/**
* @ingroup los_timer
* @brief Get systick cycle.
*
* @par Description:
* This API is used to get systick cycle and return current tick period.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @param: period [OUT] current tick period.
*
* @retval current tick count.
*
* @par Dependency:
* <ul><li>los_timer.h: the header file that contains the API declaration.</li></ul>
* @see
*/
UINT64 HalGetTickCycle(UINT32 *period);
/**
* @ingroup los_timer
* @brief reconfig systick, and clear SysTick_IRQn.
*
* @par Description:
* <ul>
* <li>This API is used to reconfig systick, and clear SysTick_IRQn.</li>
* </ul>
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @param nextResponseTime [IN] tick period
*
* @retval None.
* @par Dependency:
* <ul><li>los_timer.h: the header file that contains the API declaration.</li></ul>
* @see None
*/
extern VOID HalSysTickReload(UINT64 nextResponseTime);
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif /* _LOS_TIMER_H */