1 /* 2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. 3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this list of 9 * conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 12 * of conditions and the following disclaimer in the documentation and/or other materials 13 * provided with the distribution. 14 * 15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 16 * to endorse or promote products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LOS_TIMER_H 33 #define _LOS_TIMER_H 34 35 #ifdef __cplusplus 36 #if __cplusplus 37 extern "C" { 38 #endif /* __cplusplus */ 39 #endif /* __cplusplus */ 40 41 extern UINT32 HalClockFreqRead(VOID); 42 extern VOID HalClockFreqWrite(UINT32 freq); 43 extern VOID HalClockStart(VOID); 44 extern VOID HalClockIrqClear(VOID); 45 extern VOID HalClockInit(VOID); 46 extern UINT64 HalClockGetCycles(VOID); 47 extern VOID HalDelayUs(UINT32 usecs); 48 extern UINT32 HalClockGetTickTimerCycles(VOID); 49 extern UINT64 HalClockTickTimerReload(UINT64 cycles); 50 51 extern UINT32 HrtimersInit(VOID); 52 extern VOID HrtimerClockIrqClear(VOID); 53 extern VOID HrtimerClockStart(UINT32 period); 54 extern VOID HrtimerClockStop(VOID); 55 extern UINT32 HrtimerClockValueGet(VOID); 56 extern VOID HrtimerClockInit(VOID); 57 58 #ifdef __cplusplus 59 #if __cplusplus 60 } 61 #endif /* __cplusplus */ 62 #endif /* __cplusplus */ 63 64 #endif /* _LOS_TIMER_H */ 65