Blame view

include/bcd.h 548 Bytes
758c037ae   Stefan Roese   rtc: Add Xicor/In...
1
2
3
4
  /* Permission is hereby granted to copy, modify and redistribute this code
   * in terms of the GNU Library General Public License, Version 2 or later,
   * at your option.
   */
e84aba135   Albin Tonnerre   Replace BCD2BIN a...
5
6
  /* inline functions to translate to/from binary and binary-coded decimal
   * (frequently found in RTC chips).
758c037ae   Stefan Roese   rtc: Add Xicor/In...
7
8
9
10
   */
  
  #ifndef _BCD_H
  #define _BCD_H
e84aba135   Albin Tonnerre   Replace BCD2BIN a...
11
  #include <linux/types.h>
758c037ae   Stefan Roese   rtc: Add Xicor/In...
12

e84aba135   Albin Tonnerre   Replace BCD2BIN a...
13
14
15
16
17
18
19
20
21
  static inline unsigned int bcd2bin(u8 val)
  {
  	return ((val) & 0x0f) + ((val) >> 4) * 10;
  }
  
  static inline u8 bin2bcd (unsigned int val)
  {
  	return (((val / 10) << 4) | (val % 10));
  }
758c037ae   Stefan Roese   rtc: Add Xicor/In...
22
23
  
  #endif /* _BCD_H */