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8f64dcd8b3
* Set local time offset when writing to Joybus or 64DD RTC. * Refactor get_local_time to use ISO C Time APIs. Special thanks to @jago85 and @LuigiBlood for their research!
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
//
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// os/common/local_time.h
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//
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// Functions for getting current time.
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//
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// This file is subject to the terms and conditions defined in
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// 'LICENSE', which is part of this source code package.
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//
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#ifndef __os_local_time_h__
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#define __os_local_time_h__
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#include "common.h"
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#include <stddef.h>
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#ifdef _WIN32
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#include <windows.h>
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#endif
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struct time_stamp {
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// Used by 64DD and Joybus RTC
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unsigned year; /* Year starting from 1900 [96-195] */
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unsigned month; /* Month [1-12] */
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unsigned day; /* Day [1-31] */
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unsigned hour; /* Hour [0-23] */
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unsigned min; /* Minute [0-59] */
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unsigned sec; /* Second [0-59] */
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// Used only by Joybus RTC
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unsigned week_day; /* Day of Week [0-6] (Sun-Sat) */
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};
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void get_local_time(struct time_stamp *ts, int32_t offset_seconds);
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int32_t get_offset_seconds(const struct time_stamp * ts);
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static inline uint8_t byte2bcd(unsigned byte) {
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byte %= 100;
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return ((byte / 10) << 4) | (byte % 10);
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}
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static inline uint8_t bcd2byte(uint8_t bcd) {
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uint8_t hi = (bcd & 0xF0) >> 4;
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uint8_t lo = bcd & 0x0F;
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return (hi * 10) + lo;
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}
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#endif
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