patch-2.3.17 linux/fs/udf/udfend.h

• Lines: 108
• Date: Sat Sep 4 12:42:30 1999
• Orig file: v2.3.16/linux/fs/udf/udfend.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.16/linux/fs/udf/udfend.h linux/fs/udf/udfend.h
@@ -0,0 +1,107 @@
+#ifndef __UDF_ENDIAN_H
+#define __UDF_ENDIAN_H
+
+#ifndef __KERNEL__ 
+
+#if __BYTE_ORDER == 0
+
+#error "__BYTE_ORDER must be defined"
+
+#elif __BYTE_ORDER == __BIG_ENDIAN
+
+#define le16_to_cpu(x) \
+	((Uint16)((((Uint16)(x) & 0x00FFU) << 8) | \
+		  (((Uint16)(x) & 0xFF00U) >> 8)))
+ 
+#define le32_to_cpu(x) \
+	((Uint32)((((Uint32)(x) & 0x000000FFU) << 24) | \
+		  (((Uint32)(x) & 0x0000FF00U) <<  8) | \
+		  (((Uint32)(x) & 0x00FF0000U) >>  8) | \
+		  (((Uint32)(x) & 0xFF000000U) >> 24)))
+
+#define le64_to_cpu(x) \
+	((Uint64)((((Uint64)(x) & 0x00000000000000FFULL) << 56) | \
+		  (((Uint64)(x) & 0x000000000000FF00ULL) << 40) | \
+		  (((Uint64)(x) & 0x0000000000FF0000ULL) << 24) | \
+		  (((Uint64)(x) & 0x00000000FF000000ULL) <<  8) | \
+		  (((Uint64)(x) & 0x000000FF00000000ULL) >>  8) | \
+		  (((Uint64)(x) & 0x0000FF0000000000ULL) >> 24) | \
+		  (((Uint64)(x) & 0x00FF000000000000ULL) >> 40) | \
+		  (((Uint64)(x) & 0xFF00000000000000ULL) >> 56)))		
+
+#define cpu_to_le16(x) (le16_to_cpu(x))
+#define cpu_to_le32(x) (le32_to_cpu(x))
+#define cpu_to_le64(x) (le64_to_cpu(x))
+
+#else /* __BYTE_ORDER == __LITTLE_ENDIAN */
+
+#define le16_to_cpu(x) (x)
+#define le32_to_cpu(x) (x)
+#define le64_to_cpu(x) (x)
+#define cpu_to_le16(x) (x)
+#define cpu_to_le32(x) (x)
+#define cpu_to_le64(x) (x)
+
+#endif
+
+#endif
+
+static inline lb_addr lelb_to_cpu(lb_addr in)
+{
+	lb_addr out;
+	out.logicalBlockNum = le32_to_cpu(in.logicalBlockNum);
+	out.partitionReferenceNum = le16_to_cpu(in.partitionReferenceNum);
+	return out;
+}
+
+static inline lb_addr cpu_to_lelb(lb_addr in)
+{
+	lb_addr out;
+	out.logicalBlockNum = cpu_to_le32(in.logicalBlockNum);
+	out.partitionReferenceNum = cpu_to_le16(in.partitionReferenceNum);
+	return out;
+}
+
+static inline timestamp lets_to_cpu(timestamp in)
+{
+	timestamp out;
+	memcpy(&out, &in, sizeof(timestamp));
+	out.typeAndTimezone = le16_to_cpu(in.typeAndTimezone);
+	out.year = le16_to_cpu(in.year);
+	return out;
+}
+
+static inline long_ad lela_to_cpu(long_ad in)
+{
+	long_ad out;
+	out.extLength = le32_to_cpu(in.extLength);
+	out.extLocation = lelb_to_cpu(in.extLocation);
+	return out;
+}
+
+static inline long_ad cpu_to_lela(long_ad in)
+{
+	long_ad out;
+	out.extLength = cpu_to_le32(in.extLength);
+	out.extLocation = cpu_to_lelb(in.extLocation);
+	return out;
+}
+
+static inline extent_ad leea_to_cpu(extent_ad in)
+{
+	extent_ad out;
+	out.extLength = le32_to_cpu(in.extLength);
+	out.extLocation = le32_to_cpu(in.extLocation);
+	return out;
+}
+
+static inline timestamp cpu_to_lets(timestamp in)
+{
+	timestamp out;
+	memcpy(&out, &in, sizeof(timestamp));
+	out.typeAndTimezone = cpu_to_le16(in.typeAndTimezone);
+	out.year = cpu_to_le16(in.year);
+	return out;
+}
+
+#endif /* __UDF_ENDIAN_H */