- #ifndef __UDF_ENDIAN_H
- #define __UDF_ENDIAN_H
- #ifndef __KERNEL__
- #include <sys/types.h>
- #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 /* __BYTE_ORDER == 0 */
- #include <string.h>
- #else /* __KERNEL__ */
- #include <asm/byteorder.h>
- #include <linux/string.h>
- #endif /* ! __KERNEL__ */
- 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 short_ad lesa_to_cpu(short_ad in)
- {
- short_ad out;
- out.extLength = le32_to_cpu(in.extLength);
- out.extPosition = le32_to_cpu(in.extPosition);
- return out;
- }
- static inline short_ad cpu_to_lesa(short_ad in)
- {
- short_ad out;
- out.extLength = cpu_to_le32(in.extLength);
- out.extPosition = cpu_to_le32(in.extPosition);
- 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 */