26 lines
656 B
C
26 lines
656 B
C
/* Permission is hereby granted to copy, modify and redistribute this code
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* in terms of the GNU Library General Public License, Version 2 or later,
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* at your option.
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*/
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/* macros to translate to/from binary and binary-coded decimal (frequently
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* found in RTC chips).
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*/
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#ifndef _BCD_H
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#define _BCD_H
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#include <linux/compiler.h>
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unsigned bcd2bin(unsigned char val) __attribute_const__;
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unsigned char bin2bcd(unsigned val) __attribute_const__;
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#define BCD2BIN(val) bcd2bin(val)
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#define BIN2BCD(val) bin2bcd(val)
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/* backwards compat */
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#define BCD_TO_BIN(val) ((val)=BCD2BIN(val))
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#define BIN_TO_BCD(val) ((val)=BIN2BCD(val))
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#endif /* _BCD_H */
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