| // SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
| /* Copyright 2013-2015 IBM Corp. */ |
| |
| #ifndef __TIME_UTILS_H |
| #define __TIME_UTILS_H |
| |
| #include <stdint.h> |
| #include <time.h> |
| |
| /* BCD conversion utilities. MSB is byte 3, LSB is byte 0 */ |
| |
| static inline unsigned int bcd_byte(uint32_t bcd, int byteno) |
| { |
| bcd >>= byteno * 8; |
| return (bcd >> 4 & 0xf) * 10 + (bcd & 0xf); |
| } |
| |
| static inline uint32_t int_to_bcd2(unsigned int x) |
| { |
| return (((x / 10) << 4) & 0xf0) | (x % 10); |
| } |
| |
| static inline uint32_t int_to_bcd4(unsigned int x) |
| { |
| return int_to_bcd2(x / 100) << 8 | int_to_bcd2(x % 100); |
| } |
| |
| void tm_to_datetime(struct tm *tm, uint32_t *y_m_d, uint64_t *h_m_s_m); |
| void datetime_to_tm(uint32_t y_m_d, uint64_t h_m_s_m, struct tm *tm); |
| |
| #endif |
