96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _RTC_TIME_HOOK_H
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#define _RTC_TIME_HOOK_H
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#include "los_config.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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/*
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* RTC interfaces for improving the accuracy of the time, need implement and
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* register by user, implementation method is as follows:
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*
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* UINT64 RtcGetTickHook(VOID)
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* brief: supplement expanded ticks
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* input: VOID
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* return: UINT64 ticks
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*
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* INT32 RtcGetTimeHook(UINT64 *usec)
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* brief: get RTC time
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* output: UINT64 *usec, pointer to get the time, value is counted in microsecond(us)
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* return: non-0 if error, 0 if success.
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*
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* INT32 RtcSetTimeHook(UINT64 msec, UINT64 *usec)
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* brief: set RTC time
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* input: UINT64 msec, the time to be set counted in millisecond(ms).
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* input: UINT64 *usec, the time to be set counted in microsecond(us)
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* return: non-0 if error, 0 if success.
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*
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* INT32 RtcGetTimezoneHook(INT32 *tz)
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* brief: get RTC timezone
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* output: INT32 *tz, pointer to get the timezone, value is counted in second
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* return: non-0 if error, 0 if success.
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*
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* INT32 RtcSetTimezoneHook(INT32 tz)
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* brief: set RTC timezone
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* input: INT32 tz, the timezone to be set, value is counted in second
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* return: non-0 if error, 0 if success.
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*/
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struct RtcTimeHook {
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UINT64 (*RtcGetTickHook)(VOID);
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INT32 (*RtcGetTimeHook)(UINT64 *usec);
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INT32 (*RtcSetTimeHook)(UINT64 msec, UINT64 *usec);
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INT32 (*RtcGetTimezoneHook)(INT32 *tz);
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INT32 (*RtcSetTimezoneHook)(INT32 tz);
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};
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/*
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* @brief let user register a RTC getter hook to improve time accuracy for time-related POSIX methods.
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* @param cfg, a structure, member is pointer to function to be registered
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* @return VOID.
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*/
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VOID LOS_RtcHookRegister(struct RtcTimeHook *cfg);
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif
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