/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
- * Copyright (C) 2002-2011 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
+ * Copyright (C) 2002-2018 Aleph One Ltd.
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
((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);
+}
+
+static inline YTIME_T swap_ytime_t(YTIME_T val)
+{
+
+ if (sizeof(YTIME_T) == sizeof(u64))
+ return swap_u64(val);
+ else
+ return swap_u32(val);
+}
+
+//swap a signed 32 bit integer.
#define swap_s32(val) \
(s32)(swap_u32((u32)(val)))
static inline loff_t swap_loff_t(loff_t lval)
{
- u32 vall = swap_u32((u32) (lval & 0xffffffff));
+ u32 vall = swap_u32(FSIZE_LOW(lval));
u32 valh;
if (sizeof(loff_t) == sizeof(u32))
return (loff_t) vall;
- valh = swap_u32((u32) ((lval >> 32) & 0xffffffff));
+ valh = swap_u32(FSIZE_HIGH(lval));
- return (loff_t)((((u64)vall) << 32) | valh);
+ return FSIZE_COMBINE(vall, valh); /*NB: h and l are swapped. */
}
+
+
struct yaffs_dev;
void yaffs_do_endian_s32(struct yaffs_dev *dev, s32 *val);
void yaffs_do_endian_u32(struct yaffs_dev *dev, u32 *val);