71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
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/*
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* Copyright (c) 2018 Oticon A/S
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* API to the native_posix (Real) Time Clock
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*/
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#include "native_rtc.h"
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#include "hw_models_top.h"
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#include "timer_model.h"
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/**
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* Return the (simulation) time in microseconds
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* where clock_type is one of RTC_CLOCK_*
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*/
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u64_t native_rtc_gettime_us(int clock_type)
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{
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if (clock_type == RTC_CLOCK_BOOT) {
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return hwm_get_time();
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} else if (clock_type == RTC_CLOCK_REALTIME) { /* RTC_CLOCK_REALTIME */
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return hwtimer_get_simu_rtc_time();
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} else if (clock_type == RTC_CLOCK_PSEUDOHOSTREALTIME) {
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u32_t nsec;
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u64_t sec;
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hwtimer_get_pseudohost_rtc_time(&nsec, &sec);
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return sec * 1000000UL + nsec / 1000;
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}
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posix_print_error_and_exit("Unknown clock source %i\n",
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clock_type);
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return 0;
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}
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/**
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* Similar to POSIX clock_getitme()
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* get the simulation time split in nsec and seconds
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* where clock_type is one of RTC_CLOCK_*
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*/
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void native_rtc_gettime(int clock_type, u32_t *nsec, u64_t *sec)
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{
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if (clock_type == RTC_CLOCK_BOOT || clock_type == RTC_CLOCK_REALTIME) {
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u64_t us = native_rtc_gettime_us(clock_type);
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*nsec = (us % 1000000UL) * 1000;
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*sec = us / 1000000UL;
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} else { /* RTC_CLOCK_PSEUDOHOSTREALTIME */
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hwtimer_get_pseudohost_rtc_time(nsec, sec);
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}
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}
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/**
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* Offset the real time clock by a number of microseconds.
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* Note that this only affects the RTC_CLOCK_REALTIME and
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* RTC_CLOCK_PSEUDOHOSTREALTIME clocks.
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*/
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void native_rtc_offset(s64_t delta_us)
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{
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hwtimer_adjust_rtc_offset(delta_us);
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}
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/**
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* Adjust the speed of the clock source by a multiplicative factor
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*/
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void native_rtc_adjust_clock(double clock_correction)
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{
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hwtimer_adjust_rt_ratio(clock_correction);
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}
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