X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_endian.h;h=0f1ef0491e73e29d334aadde52fab103f679048d;hp=8c271891a0197cb2d8e1d039c289e27208cd09b8;hb=99c3936c718cd7bd83a9edbc4327768215872b73;hpb=3de09ef5a181999f7340462154034b727827e4fa;ds=sidebyside

diff --git a/yaffs_endian.h b/yaffs_endian.h
index 8c27189..0f1ef04 100644
--- a/yaffs_endian.h
+++ b/yaffs_endian.h
@@ -25,6 +25,26 @@ static inline u32 swap_u32(u32 val)
 	       ((val <<24) & 0xff000000);
 }
 
+static inline u64 swap_u64(u64 val)
+{
+	return ((val >> 56) & 0x00000000000000ff) |
+	       ((val >> 40) & 0x000000000000ff00) |
+	       ((val >> 24) & 0x0000000000ff0000) |
+	       ((val >> 8)  & 0x00000000ff000000) |
+	       ((val << 8)  & 0x000000ff00000000) |
+	       ((val << 24) & 0x0000ff0000000000) |
+	       ((val << 40) & 0x00ff000000000000) |
+	       ((val << 56) & 0xff00000000000000);
+}
+
+//YTIME_T can be a 32 or 64 bit number.
+#if YAFFS_USE_32_BIT_TIME_T
+	#define swap_ytime_t( val ) swap_u32(val)
+#else
+	#define swap_ytime_t( val ) swap_u64(val)
+#endif
+
+//swap a signed 32 bit integer.
 #define swap_s32(val) \
 	(s32)(swap_u32((u32)(val)))