/* * ZFS filesystem port for Uboot by * Jorgen Lundman <lundman at lundman.net> * * zfsfs support * made from existing GRUB Sources by Sun, GNU and others. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __ZFS_COMMON__ #define __ZFS_COMMON__ #define SECTOR_SIZE 0x200 #define SECTOR_BITS 9 typedef enum zfs_endian { UNKNOWN_ENDIAN = -2, LITTLE_ENDIAN = -1, BIG_ENDIAN = 0 } zfs_endian_t; /* Endian macros. */ #define zfs_to_cpu16(x, a) (((a) == BIG_ENDIAN) ? be16_to_cpu(x) \ : le16_to_cpu(x)) #define cpu_to_zfs16(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be16(x) \ : cpu_to_le16(x)) #define zfs_to_cpu32(x, a) (((a) == BIG_ENDIAN) ? be32_to_cpu(x) \ : le32_to_cpu(x)) #define cpu_to_zfs32(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be32(x) \ : cpu_to_le32(x)) #define zfs_to_cpu64(x, a) (((a) == BIG_ENDIAN) ? be64_to_cpu(x) \ : le64_to_cpu(x)) #define cpu_to_zfs64(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be64(x) \ : cpu_to_le64(x)) enum zfs_errors { ZFS_ERR_NONE = 0, ZFS_ERR_NOT_IMPLEMENTED_YET = -1, ZFS_ERR_BAD_FS = -2, ZFS_ERR_OUT_OF_MEMORY = -3, ZFS_ERR_FILE_NOT_FOUND = -4, ZFS_ERR_BAD_FILE_TYPE = -5, ZFS_ERR_OUT_OF_RANGE = -6, }; struct zfs_filesystem { /* Block Device Descriptor */ block_dev_desc_t *dev_desc; }; extern block_dev_desc_t *zfs_dev_desc; struct device_s { uint64_t part_length; }; typedef struct device_s *device_t; struct zfs_file { device_t device; uint64_t size; void *data; uint64_t offset; }; typedef struct zfs_file *zfs_file_t; struct zfs_dirhook_info { int dir; int mtimeset; time_t mtime; time_t mtime2; }; struct zfs_filesystem *zfsget_fs(void); int init_fs(block_dev_desc_t *dev_desc); void deinit_fs(block_dev_desc_t *dev_desc); int zfs_open(zfs_file_t, const char *filename); uint64_t zfs_read(zfs_file_t, char *buf, uint64_t len); struct zfs_data *zfs_mount(device_t); int zfs_close(zfs_file_t); int zfs_ls(device_t dev, const char *path, int (*hook) (const char *, const struct zfs_dirhook_info *)); int zfs_devread(int sector, int byte_offset, int byte_len, char *buf); int zfs_set_blk_dev(block_dev_desc_t *rbdd, int part); void zfs_unmount(struct zfs_data *data); int lzjb_decompress(void *, void *, uint32_t, uint32_t); #endif