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#define SECTOR_SIZE                     0x200
  26#define SECTOR_BITS                     9
  27
  28
  29typedef enum zfs_endian {
  30        UNKNOWN_ENDIAN = -2,
  31        LITTLE_ENDIAN = -1,
  32        BIG_ENDIAN = 0
  33} zfs_endian_t;
  34
  35
  36/* Endian macros. */
  37#define zfs_to_cpu16(x, a) (((a) == BIG_ENDIAN) ? be16_to_cpu(x) \
  38                                                                : le16_to_cpu(x))
  39#define cpu_to_zfs16(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be16(x) \
  40                                                                : cpu_to_le16(x))
  41
  42#define zfs_to_cpu32(x, a) (((a) == BIG_ENDIAN) ? be32_to_cpu(x) \
  43                                                                : le32_to_cpu(x))
  44#define cpu_to_zfs32(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be32(x) \
  45                                                                : cpu_to_le32(x))
  46
  47#define zfs_to_cpu64(x, a) (((a) == BIG_ENDIAN) ? be64_to_cpu(x) \
  48                                                                : le64_to_cpu(x))
  49#define cpu_to_zfs64(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be64(x) \
  50                                                                : cpu_to_le64(x))
  51
  52
  53enum zfs_errors {
  54        ZFS_ERR_NONE = 0,
  55        ZFS_ERR_NOT_IMPLEMENTED_YET = -1,
  56        ZFS_ERR_BAD_FS = -2,
  57        ZFS_ERR_OUT_OF_MEMORY = -3,
  58        ZFS_ERR_FILE_NOT_FOUND = -4,
  59        ZFS_ERR_BAD_FILE_TYPE = -5,
  60        ZFS_ERR_OUT_OF_RANGE = -6,
  61};
  62
  63struct zfs_filesystem {
  64
  65        /* Block Device Descriptor */
  66        block_dev_desc_t *dev_desc;
  67};
  68
  69struct device_s {
  70        uint64_t part_length;
  71};
  72typedef struct device_s *device_t;
  73
  74struct zfs_file {
  75        device_t device;
  76        uint64_t size;
  77        void *data;
  78        uint64_t offset;
  79};
  80
  81typedef struct zfs_file *zfs_file_t;
  82
  83struct zfs_dirhook_info {
  84        int dir;
  85        int mtimeset;
  86        time_t mtime;
  87        time_t mtime2;
  88};
  89
  90
  91
  92
  93struct zfs_filesystem *zfsget_fs(void);
  94int zfs_open(zfs_file_t, const char *filename);
  95uint64_t zfs_read(zfs_file_t, char *buf, uint64_t len);
  96struct zfs_data *zfs_mount(device_t);
  97int zfs_close(zfs_file_t);
  98int zfs_ls(device_t dev, const char *path,
  99                   int (*hook) (const char *, const struct zfs_dirhook_info *));
 100int zfs_devread(int sector, int byte_offset, int byte_len, char *buf);
 101void zfs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info);
 102void zfs_unmount(struct zfs_data *data);
 103int lzjb_decompress(void *, void *, uint32_t, uint32_t);
 104#endif
 105