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| author | Peter Pearse <peter.pearse@arm.com> | 2008-01-07 15:34:22 +0000 |
|---|---|---|
| committer | Peter Pearse <peter.pearse@arm.com> | 2008-01-07 15:34:22 +0000 |
| commit | 4985ca5af3767ffe13ea96e1dc26f88c81084414 (patch) | |
| tree | 94db0464d5c7c643816dd3b4e823343496c2ed96 /include/bcd.h | |
| parent | 2ae64f5135e51bb18753884d1265b99e89b5aedd (diff) | |
| parent | 5c740711f0ea5b51414b341b71597c4a0751be74 (diff) | |
| download | u-boot-imx-4985ca5af3767ffe13ea96e1dc26f88c81084414.zip u-boot-imx-4985ca5af3767ffe13ea96e1dc26f88c81084414.tar.gz u-boot-imx-4985ca5af3767ffe13ea96e1dc26f88c81084414.tar.bz2 | |
Merge with git://www.denx.de/git/u-boot.git
Diffstat (limited to 'include/bcd.h')
| -rw-r--r-- | include/bcd.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/bcd.h b/include/bcd.h new file mode 100644 index 0000000..c545308 --- /dev/null +++ b/include/bcd.h @@ -0,0 +1,20 @@ +/* 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. + */ + +/* macros to translate to/from binary and binary-coded decimal (frequently + * found in RTC chips). + */ + +#ifndef _BCD_H +#define _BCD_H + +#define BCD2BIN(val) (((val) & 0x0f) + ((val)>>4)*10) +#define BIN2BCD(val) ((((val)/10)<<4) + (val)%10) + +/* backwards compat */ +#define BCD_TO_BIN(val) ((val)=BCD2BIN(val)) +#define BIN_TO_BCD(val) ((val)=BIN2BCD(val)) + +#endif /* _BCD_H */ |