Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / fs / jffs2 / summary.h

diff --git a/qemu/roms/u-boot/fs/jffs2/summary.h b/qemu/roms/u-boot/fs/jffs2/summary.h
new file mode 100644 (file)
index 0000000..834933c
--- /dev/null
+++ b/qemu/roms/u-boot/fs/jffs2/summary.h
@@ -0,0 +1,163 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright © 2004  Ferenc Havasi <havasi@inf.u-szeged.hu>,
+ *                  Zoltan Sogor <weth@inf.u-szeged.hu>,
+ *                  Patrik Kluba <pajko@halom.u-szeged.hu>,
+ *                  University of Szeged, Hungary
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ */
+
+#ifndef JFFS2_SUMMARY_H
+#define JFFS2_SUMMARY_H
+
+#define BLK_STATE_ALLFF                0
+#define BLK_STATE_CLEAN                1
+#define BLK_STATE_PARTDIRTY    2
+#define BLK_STATE_CLEANMARKER  3
+#define BLK_STATE_ALLDIRTY     4
+#define BLK_STATE_BADBLOCK     5
+
+#define JFFS2_SUMMARY_NOSUM_SIZE 0xffffffff
+#define JFFS2_SUMMARY_INODE_SIZE (sizeof(struct jffs2_sum_inode_flash))
+#define JFFS2_SUMMARY_DIRENT_SIZE(x) (sizeof(struct jffs2_sum_dirent_flash) + (x))
+#define JFFS2_SUMMARY_XATTR_SIZE (sizeof(struct jffs2_sum_xattr_flash))
+#define JFFS2_SUMMARY_XREF_SIZE (sizeof(struct jffs2_sum_xref_flash))
+
+/* Summary structures used on flash */
+
+struct jffs2_sum_unknown_flash
+{
+       __u16 nodetype; /* node type */
+};
+
+struct jffs2_sum_inode_flash
+{
+       __u16 nodetype; /* node type */
+       __u32 inode;            /* inode number */
+       __u32 version;  /* inode version */
+       __u32 offset;   /* offset on jeb */
+       __u32 totlen;   /* record length */
+} __attribute__((packed));
+
+struct jffs2_sum_dirent_flash
+{
+       __u16 nodetype; /* == JFFS_NODETYPE_DIRENT */
+       __u32 totlen;   /* record length */
+       __u32 offset;   /* offset on jeb */
+       __u32 pino;             /* parent inode */
+       __u32 version;  /* dirent version */
+       __u32 ino;              /* == zero for unlink */
+       uint8_t nsize;          /* dirent name size */
+       uint8_t type;           /* dirent type */
+       uint8_t name[0];        /* dirent name */
+} __attribute__((packed));
+
+struct jffs2_sum_xattr_flash
+{
+       __u16 nodetype; /* == JFFS2_NODETYPE_XATR */
+       __u32 xid;              /* xattr identifier */
+       __u32 version;  /* version number */
+       __u32 offset;   /* offset on jeb */
+       __u32 totlen;   /* node length */
+} __attribute__((packed));
+
+struct jffs2_sum_xref_flash
+{
+       __u16 nodetype; /* == JFFS2_NODETYPE_XREF */
+       __u32 offset;   /* offset on jeb */
+} __attribute__((packed));
+
+union jffs2_sum_flash
+{
+       struct jffs2_sum_unknown_flash u;
+       struct jffs2_sum_inode_flash i;
+       struct jffs2_sum_dirent_flash d;
+       struct jffs2_sum_xattr_flash x;
+       struct jffs2_sum_xref_flash r;
+};
+
+/* Summary structures used in the memory */
+
+struct jffs2_sum_unknown_mem
+{
+       union jffs2_sum_mem *next;
+       __u16 nodetype; /* node type */
+};
+
+struct jffs2_sum_inode_mem
+{
+       union jffs2_sum_mem *next;
+       __u16 nodetype; /* node type */
+       __u32 inode;            /* inode number */
+       __u32 version;  /* inode version */
+       __u32 offset;   /* offset on jeb */
+       __u32 totlen;   /* record length */
+} __attribute__((packed));
+
+struct jffs2_sum_dirent_mem
+{
+       union jffs2_sum_mem *next;
+       __u16 nodetype; /* == JFFS_NODETYPE_DIRENT */
+       __u32 totlen;   /* record length */
+       __u32 offset;   /* ofset on jeb */
+       __u32 pino;             /* parent inode */
+       __u32 version;  /* dirent version */
+       __u32 ino;              /* == zero for unlink */
+       uint8_t nsize;          /* dirent name size */
+       uint8_t type;           /* dirent type */
+       uint8_t name[0];        /* dirent name */
+} __attribute__((packed));
+
+struct jffs2_sum_xattr_mem
+{
+       union jffs2_sum_mem *next;
+       __u16 nodetype;
+       __u32 xid;
+       __u32 version;
+       __u32 offset;
+       __u32 totlen;
+} __attribute__((packed));
+
+struct jffs2_sum_xref_mem
+{
+       union jffs2_sum_mem *next;
+       __u16 nodetype;
+       __u32 offset;
+} __attribute__((packed));
+
+union jffs2_sum_mem
+{
+       struct jffs2_sum_unknown_mem u;
+       struct jffs2_sum_inode_mem i;
+       struct jffs2_sum_dirent_mem d;
+       struct jffs2_sum_xattr_mem x;
+       struct jffs2_sum_xref_mem r;
+};
+
+/* Summary related information stored in superblock */
+
+struct jffs2_summary
+{
+       uint32_t sum_size;      /* collected summary information for nextblock */
+       uint32_t sum_num;
+       uint32_t sum_padded;
+       union jffs2_sum_mem *sum_list_head;
+       union jffs2_sum_mem *sum_list_tail;
+
+       __u32 *sum_buf; /* buffer for writing out summary */
+};
+
+/* Summary marker is stored at the end of every sumarized erase block */
+
+struct jffs2_sum_marker
+{
+       __u32 offset;   /* offset of the summary node in the jeb */
+       __u32 magic;    /* == JFFS2_SUM_MAGIC */
+};
+
+#define JFFS2_SUMMARY_FRAME_SIZE (sizeof(struct jffs2_raw_summary) + sizeof(struct jffs2_sum_marker))
+
+#endif /* JFFS2_SUMMARY_H */