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/* Copyright 2013-2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#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
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