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 #include "los_compiler.h" 36 #include "los_interrupt.h" 37 38 #ifdef __cplusplus 39 #if __cplusplus 40 extern "C" { 41 #endif /* __cplusplus */ 42 #endif /* __cplusplus */ 43 44 #define TICK_CHECK 0x4000000 45 #define CYCLE_CHECK 0xFFFFFFFFU 46 #define SHIFT_32_BIT 32 47 #define MAX_HOUR 24 48 #define MAX_MINUTES 60 49 #define MAX_SECONDS 60 50 #define MILSEC 1000 51 #define RTC_WAKEUPCLOCK_RTCCLK 32768 52 #define RTC_WAKEUPCLOCK_RTCCLK_DIV 16 53 #define RTC_CALIBRATE_SLEEP_TIME 8 54 #define MACHINE_CYCLE_DEALAY_TIMES (LOSCFG_BASE_CORE_TICK_PER_SECOND << 2) 55 56 typedef struct { 57 UINT32 freq; 58 INT32 irqNum; 59 UINT64 periodMax; 60 UINT32 (*init)(HWI_PROC_FUNC tickHandler); 61 UINT64 (*getCycle)(UINT32 *period); 62 UINT64 (*reload)(UINT64 time); 63 VOID (*lock)(VOID); 64 VOID (*unlock)(VOID); 65 HWI_PROC_FUNC tickHandler; 66 } ArchTickTimer; 67 68 UINT32 ArchEnterSleep(VOID); 69 70 /** 71 * @ingroup los_timer 72 * @brief Get tick timer control block. 73 * 74 * @par Description: 75 * This API is used to get tick timer control block. 76 * 77 * @param None 78 * 79 * @retval #tick timer control block 80 * @par Dependency: 81 * <ul><li>los_timer.h: the header file that contains the API declaration.</li></ul> 82 * @see None. 83 */ 84 ArchTickTimer *ArchSysTickTimerGet(VOID); 85 86 #define LOS_SysTickTimerGet ArchSysTickTimerGet 87 88 #ifdef __cplusplus 89 #if __cplusplus 90 } 91 #endif /* __cplusplus */ 92 #endif /* __cplusplus */ 93 94 #endif /* _LOS_TIMER_H */ 95