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authorH. Nikolaus Schaller <hns@goldelico.com>2012-03-26 20:55:28 +0200
committerH. Nikolaus Schaller <hns@goldelico.com>2012-03-26 20:55:28 +0200
commit92988a21ad4c4c9504295ccb580c9f806134471b (patch)
tree5effc9f14170112450de05c67dafbe8d5034d595 /u-boot/include/bcd.h
parentca2b506783b676c95762c54ea24dcfdaae1947c9 (diff)
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added boot script files to repository
Diffstat (limited to 'u-boot/include/bcd.h')
-rw-r--r--u-boot/include/bcd.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/u-boot/include/bcd.h b/u-boot/include/bcd.h
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--- /dev/null
+++ b/u-boot/include/bcd.h
@@ -0,0 +1,25 @@
+/* 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.
+ */
+
+/* inline functions to translate to/from binary and binary-coded decimal
+ * (frequently found in RTC chips).
+ */
+
+#ifndef _BCD_H
+#define _BCD_H
+
+#include <linux/types.h>
+
+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));
+}
+
+#endif /* _BCD_H */