78 lines
1.6 KiB
C
Executable File
78 lines
1.6 KiB
C
Executable File
#ifndef UTIL_TIME_H
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#define UTIL_TIME_H
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#include <util/atomic.h>
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#include "hardware/AFSK.h"
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#include "hardware/LED.h"
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#include "hardware/sdcard/diskio.h"
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#define UNIX_EPOCH_OFFSET 946684800
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#define DIV_ROUND(dividend, divisor) (((dividend) + (divisor) / 2) / (divisor))
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typedef int32_t ticks_t;
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typedef int32_t mtime_t;
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volatile ticks_t _clock;
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volatile uint32_t _rtc_seconds;
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volatile uint16_t _rtc_seconds_accu;
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static inline ticks_t timer_clock(void) {
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ticks_t result;
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ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
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result = _clock;
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}
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return result;
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}
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inline ticks_t ms_to_ticks(mtime_t ms) {
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return ms * DIV_ROUND(CLOCK_TICKS_PER_SEC, 1000);
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}
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inline mtime_t ticks_to_ms(ticks_t ticks) {
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return DIV_ROUND(ticks, DIV_ROUND(CLOCK_TICKS_PER_SEC, 1000));
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}
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static inline uint32_t rtc_seconds(void) {
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uint32_t result;
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ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
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result = _rtc_seconds;
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}
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return result;
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}
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static inline uint32_t rtc_unix_timestamp(void) {
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uint32_t result;
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ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
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result = _rtc_seconds;
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}
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return result+UNIX_EPOCH_OFFSET;
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}
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static inline mtime_t rtc_milliseconds(void) {
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return ticks_to_ms(timer_clock() % CLOCK_TICKS_PER_SEC);
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}
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static inline void rtc_set_seconds(uint32_t seconds) {
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ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
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_rtc_seconds = seconds;
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}
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}
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inline void cpu_relax(void) {
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// Do nothing!
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}
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static inline void delay_ms(unsigned long ms) {
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ticks_t start = timer_clock();
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unsigned long n_ticks = ms_to_ticks(ms);
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while (timer_clock() - start < n_ticks) {
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cpu_relax();
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}
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}
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#endif |