LXR uboot/include/zfs

   1/*
   2 * ZFS filesystem port for Uboot by
   3 * Jorgen Lundman <lundman at lundman.net>
   4 *
   5 * zfsfs support
   6 * made from existing GRUB Sources by Sun, GNU and others.
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22#ifndef __ZFS_COMMON__
  23#define __ZFS_COMMON__
  24
  25#include <part.h>
  26
  27#define SECTOR_SIZE                     0x200
  28#define SECTOR_BITS                     9
  29
  30
  31typedef enum zfs_endian {
  32        UNKNOWN_ENDIAN = -2,
  33        LITTLE_ENDIAN = -1,
  34        BIG_ENDIAN = 0
  35} zfs_endian_t;
  36
  37
  38/* Endian macros. */
  39#define zfs_to_cpu16(x, a) (((a) == BIG_ENDIAN) ? be16_to_cpu(x) \
  40                                                                : le16_to_cpu(x))
  41#define cpu_to_zfs16(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be16(x) \
  42                                                                : cpu_to_le16(x))
  43
  44#define zfs_to_cpu32(x, a) (((a) == BIG_ENDIAN) ? be32_to_cpu(x) \
  45                                                                : le32_to_cpu(x))
  46#define cpu_to_zfs32(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be32(x) \
  47                                                                : cpu_to_le32(x))
  48
  49#define zfs_to_cpu64(x, a) (((a) == BIG_ENDIAN) ? be64_to_cpu(x) \
  50                                                                : le64_to_cpu(x))
  51#define cpu_to_zfs64(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be64(x) \
  52                                                                : cpu_to_le64(x))
  53
  54
  55enum zfs_errors {
  56        ZFS_ERR_NONE = 0,
  57        ZFS_ERR_NOT_IMPLEMENTED_YET = -1,
  58        ZFS_ERR_BAD_FS = -2,
  59        ZFS_ERR_OUT_OF_MEMORY = -3,
  60        ZFS_ERR_FILE_NOT_FOUND = -4,
  61        ZFS_ERR_BAD_FILE_TYPE = -5,
  62        ZFS_ERR_OUT_OF_RANGE = -6,
  63};
  64
  65struct zfs_filesystem {
  66
  67        /* Block Device Descriptor */
  68        struct blk_desc *dev_desc;
  69};
  70
  71struct device_s {
  72        uint64_t part_length;
  73};
  74typedef struct device_s *device_t;
  75
  76struct zfs_file {
  77        device_t device;
  78        uint64_t size;
  79        void *data;
  80        uint64_t offset;
  81};
  82
  83typedef struct zfs_file *zfs_file_t;
  84
  85struct zfs_dirhook_info {
  86        int dir;
  87        int mtimeset;
  88        time_t mtime;
  89        time_t mtime2;
  90};
  91
  92
  93
  94
  95struct zfs_filesystem *zfsget_fs(void);
  96int zfs_open(zfs_file_t, const char *filename);
  97uint64_t zfs_read(zfs_file_t, char *buf, uint64_t len);
  98struct zfs_data *zfs_mount(device_t);
  99int zfs_close(zfs_file_t);
 100int zfs_ls(device_t dev, const char *path,
 101                   int (*hook) (const char *, const struct zfs_dirhook_info *));
 102int zfs_devread(int sector, int byte_offset, int byte_len, char *buf);
 103void zfs_set_blk_dev(struct blk_desc *rbdd, struct disk_partition *info);
 104void zfs_unmount(struct zfs_data *data);
 105int lzjb_decompress(void *, void *, uint32_t, uint32_t);
 106#endif
 107