1 /* ---------------------------------------------------------------------------- 2 * Copyright (c) Huawei Technologies Co., Ltd. 2013-2018. All rights reserved. 3 * Description: Tick 4 * Redistribution and use in source and binary forms, with or without modification, 5 * are permitted provided that the following conditions are met: 6 * 1. Redistributions of source code must retain the above copyright notice, this list of 7 * conditions and the following disclaimer. 8 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 9 * of conditions and the following disclaimer in the documentation and/or other materials 10 * provided with the distribution. 11 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 12 * to endorse or promote products derived from this software without specific prior written 13 * permission. 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 24 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * --------------------------------------------------------------------------- */ 26 27 #ifndef _LOS_TICK_PRI_H 28 #define _LOS_TICK_PRI_H 29 30 #include "los_tick.h" 31 32 #ifdef __cplusplus 33 #if __cplusplus 34 extern "C" { 35 #endif /* __cplusplus */ 36 #endif /* __cplusplus */ 37 38 #define SYSTEM_CLOCK_FREQ_24M 24 39 #define SYSTEM_CLOCK_FREQ_40M 40 40 41 /** 42 * @ingroup los_tick 43 * Count of Ticks 44 */ 45 extern UINT64 g_tickCount; 46 47 /** 48 * @ingroup los_tick 49 * Ticks per second 50 */ 51 extern UINT32 g_ticksPerSec; 52 53 /** 54 * @ingroup los_tick 55 * Cycles per Tick 56 */ 57 extern UINT32 g_cyclesPerTick; 58 59 extern UINT32 g_sysClock; 60 /** 61 * @ingroup los_tick 62 * @brief Handle the system tick timeout. 63 * 64 * @par Description: 65 * This API is called when the system tick timeout and triggers the interrupt. 66 * 67 * @attention 68 * <ul> 69 * <li>None.</li> 70 * </ul> 71 * 72 * @param none. 73 * 74 * @retval None. 75 * @par Dependency: 76 * <ul><li>los_tick_pri.h: the header file that contains the API declaration.</li></ul> 77 * @see None. 78 */ 79 extern VOID OsTickHandler(VOID); 80 extern UINT32 OsTimerInit(VOID); 81 extern VOID OsTimerDisable(VOID); 82 extern VOID OsTimerStop(VOID); 83 extern VOID OsTimerStart(VOID); 84 extern LITE_OS_RAM_SECTION VOID OsPlatformTickHandler(VOID); 85 extern VOID OsPlatformGetCycle(UINT32 *cntHigh, UINT32 *cntLow); 86 extern UINT32* OsTimerGetFirstTick(VOID); 87 extern UINT32 OsTimerGetReloadValue(VOID); 88 #ifdef __cplusplus 89 #if __cplusplus 90 } 91 #endif /* __cplusplus */ 92 #endif /* __cplusplus */ 93 94 #endif /* _LOS_TICK_PRI_H */ 95