sys_time_arch.c File Reference

#include "mcu_periph/sys_time.h"
#include <stdio.h>
#include <pthread.h>
#include <sys/timerfd.h>
#include <time.h>
#include "rt_priority.h"

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Macros
#define	SYS_TIME_THREAD_PRIO   29
#define	NSEC_OF_SEC(sec)   ((sec) * 1e9)

Functions
static void	sys_tick_handler (void)
void *	sys_time_thread_main (void *data)
void	sys_time_arch_init (void)
uint32_t	get_sys_time_usec (void)
	Get the time in microseconds since startup. More...
uint32_t	get_sys_time_msec (void)
	Get the time in milliseconds since startup. More...

Variables
pthread_t	sys_time_thread
static struct timespec	startup_time

Macro Definition Documentation

#define NSEC_OF_SEC

(

sec

)

((sec) * 1e9)

Definition at line 48 of file sys_time_arch.c.

Referenced by sys_time_thread_main().

#define SYS_TIME_THREAD_PRIO   29

Definition at line 39 of file sys_time_arch.c.

Referenced by sys_time_thread_main().

Function Documentation

uint32_t get_sys_time_msec

(

void

)

Get the time in milliseconds since startup.

Returns

milliseconds since startup as uint32_t

Definition at line 175 of file sys_time_arch.c.

References msec_of_sys_time_ticks(), sys_time::nb_sec, sys_time::nb_sec_rem, sys_time::nb_tick, and startup_time.

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uint32_t get_sys_time_usec

(

void

)

Get the time in microseconds since startup.

WARNING: overflows after 71min34seconds!

Returns

current system time as uint32_t

Definition at line 153 of file sys_time_arch.c.

References sys_time::nb_sec, sys_time::nb_sec_rem, sys_time::nb_tick, startup_time, and usec_of_sys_time_ticks().

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static void sys_tick_handler ( void  )

static

Definition at line 108 of file sys_time_arch.c.

References sys_time_timer::cb, cpu_ticks_of_nsec(), sys_time_timer::duration, sys_time_timer::elapsed, sys_time_timer::end_time, sys_time_timer::in_use, LED_TOGGLE, sys_time::nb_sec, sys_time::nb_sec_rem, sys_time::nb_tick, startup_time, SYS_TIME_NB_TIMER, sys_time_ticks_of_sec(), sys_time_ticks_of_usec(), and sys_time::timer.

Referenced by sys_time_thread_main().

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void sys_time_arch_init

(

void

)

Definition at line 94 of file sys_time_arch.c.

References sys_time::cpu_ticks_per_sec, sys_time::resolution, sys_time::resolution_cpu_ticks, startup_time, sys_time_thread, and sys_time_thread_main().

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void * sys_time_thread_main

(

void *

data

)

Definition at line 50 of file sys_time_arch.c.

References fd, get_rt_prio(), NSEC_OF_SEC, sys_time::resolution, sys_tick_handler(), and SYS_TIME_THREAD_PRIO.

Referenced by sys_time_arch_init().

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Variable Documentation

struct timespec startup_time

static

Definition at line 43 of file sys_time_arch.c.

Referenced by get_sys_time_msec(), get_sys_time_usec(), sys_tick_handler(), and sys_time_arch_init().

pthread_t sys_time_thread

Definition at line 42 of file sys_time_arch.c.

Referenced by sys_time_arch_init().