los_tick.h

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/* ----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2013-2019. All rights reserved.
 * Description: Tick
 * Author: Huawei LiteOS Team
 * Create: 2013-01-01
 * 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_H
#define _LOS_TICK_H
 
#include "los_err.h"
#include "los_errno.h"
#include "hal_timer.h"
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
#define OS_SYS_MS_PER_SECOND   1000
 
#define OS_SYS_US_PER_SECOND   1000000
 
#define OS_SYS_NS_PER_SECOND   1000000000
 
#define OS_SYS_US_PER_MS        1000
 
#define OS_SYS_NS_PER_MS        1000000
 
#define OS_SYS_NS_PER_US        1000
 
#define LOS_ERRNO_TICK_CFG_INVALID       LOS_ERRNO_OS_ERROR(LOS_MOD_TICK, 0x00)
 
#define LOS_ERRNO_TICK_NO_HWTIMER        LOS_ERRNO_OS_ERROR(LOS_MOD_TICK, 0x01)
 
#define LOS_ERRNO_TICK_PER_SEC_TOO_SMALL LOS_ERRNO_OS_ERROR(LOS_MOD_TICK, 0x02)
 
extern UINT32 g_sysClock;
 
#define GET_SYS_CLOCK()        (g_sysClock)
 
#define SET_SYS_CLOCK(clock)   (g_sysClock = (clock))
 
extern UINT32 g_tickPerSecond;
 
typedef struct tagSysTime {
    UINT16 uwYear;   
    UINT8 ucMonth;   
    UINT8 ucDay;     
    UINT8 ucHour;    
    UINT8 ucMinute;  
    UINT8 ucSecond;  
    UINT8 ucWeek;    
} SYS_TIME_S;
 
extern UINT64 LOS_TickCountGet(VOID);
 
extern UINT32 LOS_CyclePerTickGet(VOID);
 
extern UINT32 LOS_Tick2MS(UINT32 tick);
 
extern UINT32 LOS_MS2Tick(UINT32 millisec);
 
extern VOID LOS_GetCpuCycle(UINT32 *puwCntHi, UINT32 *puwCntLo);
 
extern UINT64 LOS_CurrNanosec(VOID);
 
extern VOID LOS_Udelay(UINT32 usecs);
 
extern VOID LOS_Mdelay(UINT32 msecs);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* _LOS_TICK_H */