GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/include/bcd.h

@@ -0,0 +1,23 @@
+/* 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
+
+static inline unsigned int bcd2bin(unsigned int val)
+{
+	return ((val) & 0x0f) + ((val & 0xff) >> 4) * 10;
+}
+
+static inline unsigned int bin2bcd(unsigned int val)
+{
+	return (((val / 10) << 4) | (val % 10));
+}
+
+#endif /* _BCD_H */