You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
806 B
43 lines
806 B
10 months ago
|
#ifndef UTIL_TIME_H
|
||
|
|
#define UTIL_TIME_H
|
||
|
|
|
||
|
|
#include <util/atomic.h>
|
||
|
|
#include "device.h"
|
||
|
|
|
||
|
|
#define DIV_ROUND(dividend, divisor) (((dividend) + (divisor) / 2) / (divisor))
|
||
|
|
#define CLOCK_TICKS_PER_SEC CONFIG_AFSK_DAC_SAMPLERATE
|
||
|
|
|
||
|
|
typedef int32_t ticks_t;
|
||
|
|
typedef int32_t mtime_t;
|
||
|
|
|
||
|
|
volatile ticks_t _clock;
|
||
|
|
|
||
|
|
inline ticks_t timer_clock(void) {
|
||
|
|
ticks_t result;
|
||
|
|
|
||
|
|
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
|
||
|
|
result = _clock;
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
inline ticks_t ms_to_ticks(mtime_t ms) {
|
||
|
|
return ms * DIV_ROUND(CLOCK_TICKS_PER_SEC, 1000);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void cpu_relax(void) {
|
||
|
|
// Do nothing!
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void delay_ms(unsigned long ms) {
|
||
|
|
ticks_t start = timer_clock();
|
||
|
|
unsigned long n_ticks = ms_to_ticks(ms);
|
||
|
|
while (timer_clock() - start < n_ticks) {
|
||
|
|
cpu_relax();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|