#pragma once

#include <sys/cpu.h>

#include <stdint.h>
#include <avr/interrupt.h>

typedef uint64_t systick_t;

struct _systick_wait
{
	systick_t target;
};
typedef struct _systick_wait ST_WAIT;

typedef void (*systick_handler)(systick_t ticks);

extern volatile uint32_t _systick_secs;		// system uptime in [s]
extern volatile uint32_t _systick_sec_frac;

extern volatile systick_t _systick_ticks;	// system uptime in [us]

extern systick_t _systick_us;				// Systick Interval in [us]

extern uint32_t	_st_cycles_per_intervall __attribute__((weak));


void systick_init(systick_t systick_us);
void systick(void);
void systick_set_us(systick_t tickus);

int systick_correct(int32_t correct);

systick_t	systick_ticks(void);
uint32_t	systick_secs(void);

void systick_set_handler(systick_handler handler);
void systick_set_handler_sec(systick_handler handler);

void wait_ms(uint32_t ms);

void	wait_async_set(ST_WAIT* wait,systick_t us);
uint8_t wait_async_test(ST_WAIT* wait);

/* call_sys_ctx(...)   Rufe Funktion nach Ändern von SP auf CTX ST */
void call_sys_ctx(void (*proc)(void));

#if defined(__DEBUG_PLATFORM__)

	#define VECT(__vect)            						\
		void _vect_##__vect(void);    						\
		ISR(__vect){										\
			rt_dbg->last_vect[3] = rt_dbg->last_vect[2];	\
			rt_dbg->last_vect[2] = rt_dbg->last_vect[1];	\
			rt_dbg->last_vect[1] = rt_dbg->last_vect[0];	\
			rt_dbg->last_vect[0] = (int)__vect;				\
			call_sys_ctx( _vect_##__vect );     			\
		};                          						\
		void _vect_##__vect(void)

#else

	#define VECT(__vect)            			\
		void _vect_##__vect(void);    			\
		ISR(__vect){							\
			call_sys_ctx( _vect_##__vect );     \
		};                          			\
		void _vect_##__vect(void)

	
#endif

#include <sys/arch/systick.h>