ms_timer.h

#ifndef CODEBASE_MS_TIMER_H_
#define CODEBASE_MS_TIMER_H_

#include <stdint.h>
#include <stdbool.h>
#include "common_util.h"
#include "nrf_peripherals.h"
#include "nrf.h"
#include "hal_clocks.h"

#if SYS_CFG_PRESENT == 1
#include "sys_config.h"
#endif
#ifndef RTC_USED_MS_TIMER 
#define RTC_USED_MS_TIMER 1
#endif

#define MS_TIMER_RTC_USED           RTC_USED_MS_TIMER

#define MS_TIMER_CC_COUNT           CONCAT_3(RTC, MS_TIMER_RTC_USED, _CC_NUM)

#ifndef MS_TIMER_FREQ
#define MS_TIMER_FREQ               32768
#endif

/* Check if MS_TIMER_FREQ is between 8 Hz and 32768 Hz as these are valid RTC prescalar values */
#if ((MS_TIMER_FREQ < 8) || (MS_TIMER_FREQ > LFCLK_FREQ))
#error MS_TIMER_FREQ value should be between 8 and 32768
#endif

#define MS_TIMER_TICKS_MS(ms)                ((uint32_t) ROUNDED_DIV( (MS_TIMER_FREQ*(uint64_t)(ms)) , 1000) )

typedef enum {
  MS_TIMER0,  
  MS_TIMER1,  
  MS_TIMER2,  
#if (MS_TIMER_CC_COUNT == 4)
  MS_TIMER3,  
#endif
  MS_TIMER_MAX
}ms_timer_num;

typedef enum {
  MS_SINGLE_CALL,   
  MS_REPEATED_CALL  
}ms_timer_mode;

void ms_timer_init(uint32_t irq_priority);

void ms_timer_start(ms_timer_num id, ms_timer_mode mode, uint64_t ticks, void (*handler)(void));

void ms_timer_stop(ms_timer_num id);

bool ms_timer_get_on_status(ms_timer_num id);

inline uint32_t ms_timer_get_current_count(void){
  return CONCAT_2(NRF_RTC,MS_TIMER_RTC_USED)->COUNTER;
}

#endif /* CODEBASE_MS_TIMER_H_ */