Subversion Repositories hf-risc

#ifndef __LINUX_ROMFS_FS_H

#define __LINUX_ROMFS_FS_H

#include <linux/types.h>

#include <linux/fs.h>

/* The basic structures of the romfs filesystem */

#define ROMBSIZE BLOCK_SIZE

#define ROMBSBITS BLOCK_SIZE_BITS

#define ROMBMASK (ROMBSIZE-1)

#define ROMFS_MAGIC 0x7275

#define ROMFS_MAXFN 128

#define __mkw(h,l) (((h)&0x00ff)<< 8|((l)&0x00ff))

#define __mkl(h,l) (((h)&0xffff)<<16|((l)&0xffff))

#define __mk4(a,b,c,d) cpu_to_be32(__mkl(__mkw(a,b),__mkw(c,d)))

#define ROMSB_WORD0 __mk4('-','r','o','m')

#define ROMSB_WORD1 __mk4('1','f','s','-')

/* On-disk "super block" */

struct romfs_super_block {

        __be32 word0;

        __be32 word1;

        __be32 size;

        __be32 checksum;

        char name[0];            /* volume name */

};

/* On disk inode */

struct romfs_inode {

        __be32 next;            /* low 4 bits see ROMFH_ */

        __be32 spec;

        __be32 size;

        __be32 checksum;

        char name[0];

};

#define ROMFH_TYPE 7

#define ROMFH_HRD 0

#define ROMFH_DIR 1

#define ROMFH_REG 2

#define ROMFH_SYM 3

#define ROMFH_BLK 4

#define ROMFH_CHR 5

#define ROMFH_SCK 6

#define ROMFH_FIF 7

#define ROMFH_EXEC 8

/* Alignment */

#define ROMFH_SIZE 16

#define ROMFH_PAD (ROMFH_SIZE-1)

#define ROMFH_MASK (~ROMFH_PAD)

#endif