u-boot-brain/fs/jffs2/jffs2_private.h
wdenk 06d01dbe00 * Avoid flicker on the TRAB's VFD by synchronizing the enable with
the HSYNC/VSYNC. Requires new CPLD code (Version 101 for Rev. 100
  boards, version 153 for Rev. 200 boards).

* Patch by Vladimir Gurevich, 12 Mar 2003:
  Fix relocation problem of statically initialized string pointers
  in common/cmd_pci.c

* Patch by Kai-Uwe Blöm, 12 Mar 2003:
  Cleanup & bug fixes for JFFS2 code:
  - the memory mangement was broken. It caused havoc on malloc by
    writing beyond the block boundaries.
  - the length calculation for files was wrong, sometimes resulting
    in short file reads.
  - data copying now optionally takes fragment version numbers into
    account, to avoid copying from older data.
  See doc/README.JFFS2 for details.
2003-03-14 20:47:52 +00:00

90 lines
1.8 KiB
C

#ifndef jffs2_private_h
#define jffs2_private_h
#include <jffs2/jffs2.h>
struct b_node {
u32 offset;
struct b_node *next;
};
struct b_list {
struct b_node *listTail;
struct b_node *listHead;
#ifdef CFG_JFFS2_SORT_FRAGMENTS
struct b_node *listLast;
int (*listCompare)(struct b_node *new, struct b_node *node);
u32 listLoops;
#endif
u32 listCount;
struct mem_block *listMemBase;
};
struct b_lists {
char *partOffset;
struct b_list dir;
struct b_list frag;
};
struct b_compr_info {
u32 num_frags;
u32 compr_sum;
u32 decompr_sum;
};
struct b_jffs2_info {
struct b_compr_info compr_info[JFFS2_NUM_COMPR];
};
static inline int
hdr_crc(struct jffs2_unknown_node *node)
{
#if 1
u32 crc = crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_unknown_node) - 4);
#else
/* what's the semantics of this? why is this here? */
u32 crc = crc32_no_comp(~0, (unsigned char *)node, sizeof(struct jffs2_unknown_node) - 4);
crc ^= ~0;
#endif
if (node->hdr_crc != crc) {
return 0;
} else {
return 1;
}
}
static inline int
dirent_crc(struct jffs2_raw_dirent *node)
{
if (node->node_crc != crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_raw_dirent) - 8)) {
return 0;
} else {
return 1;
}
}
static inline int
dirent_name_crc(struct jffs2_raw_dirent *node)
{
if (node->name_crc != crc32_no_comp(0, (unsigned char *)&(node->name), node->nsize)) {
return 0;
} else {
return 1;
}
}
static inline int
inode_crc(struct jffs2_raw_inode *node)
{
if (node->node_crc != crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_raw_inode) - 8)) {
return 0;
} else {
return 1;
}
}
#endif /* jffs2_private.h */