#include <linux/bcd.h>

  #include <linux/export.h>

  unsigned _bcd2bin(unsigned char val)

  {
  	return (val & 0x0f) + (val >> 4) * 10;
  }

  EXPORT_SYMBOL(_bcd2bin);

  unsigned char _bin2bcd(unsigned val)

  {
  	return ((val / 10) << 4) + val % 10;
  }

  EXPORT_SYMBOL(_bin2bcd);