mirror of https://github.com/rusefi/rusefi.git
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/**
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* @file efitime.h
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*
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* By the way, there are 86400000 milliseconds in a day
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*
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* @date Apr 14, 2014
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* @author Andrey Belomutskiy, (c) 2012-2020
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*/
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#pragma once
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#include "efifeatures.h"
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#include "rusefi_types.h"
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#include "global.h"
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#include <rusefi/rusefi_time_math.h>
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#if EFI_PROD_CODE
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// for US_TO_NT_MULTIPLIER which is port-specific
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#include "port_mpu_util.h"
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#endif
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// microseconds to ticks
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// since only about 20 seconds of ticks fit in 32 bits this macro is casting parameter into 64 bits 'efitick_t' type
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// please note that int64 <-> float is a heavy operation thus we have 'USF2NT' below
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#define US2NT(us) (((efitick_t)(us)) * US_TO_NT_MULTIPLIER)
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// milliseconds to ticks
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#define MS2NT(msTime) US2NT(MS2US(msTime))
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// See USF2NT above for when to use MSF2NT
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#define MSF2NT(msTimeFloat) USF2NT(MS2US(msTimeFloat))
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/**
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* Get a monotonically increasing (but wrapping) 32-bit timer value
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* Implemented at port level, based on timer or CPU tick counter
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* Main source of EFI clock, SW-extended to 64bits
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*
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* 2147483648 / ~168MHz = ~12 seconds to overflow
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*
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*/
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uint32_t getTimeNowLowerNt();
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/**
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* @brief Returns the 32 bit number of milliseconds since the board initialization.
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*/
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efitimems_t getTimeNowMs();
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/**
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* @brief Current system time in seconds (32 bits)
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*/
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efitimesec_t getTimeNowS();
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#if EFI_UNIT_TEST
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void setTimeNowUs(int us);
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void advanceTimeUs(int us);
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#endif
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