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 31 typedef 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 55 enum 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 65 struct zfs_filesystem { 66 67 /* Block Device Descriptor */ 68 struct blk_desc *dev_desc; 69 }; 70 71 struct device_s { 72 uint64_t part_length; 73 }; 74 typedef struct device_s *device_t; 75 76 struct zfs_file { 77 device_t device; 78 uint64_t size; 79 void *data; 80 uint64_t offset; 81 }; 82 83 typedef struct zfs_file *zfs_file_t; 84 85 struct zfs_dirhook_info { 86 int dir; 87 int mtimeset; 88 time_t mtime; 89 time_t mtime2; 90 }; 91 92 93 94 95 struct zfs_filesystem *zfsget_fs(void); 96 int zfs_open(zfs_file_t, const char *filename); 97 uint64_t zfs_read(zfs_file_t, char *buf, uint64_t len); 98 struct zfs_data *zfs_mount(device_t); 99 int zfs_close(zfs_file_t); 100 int zfs_ls(device_t dev, const char *path, 101 int (*hook) (const char *, const struct zfs_dirhook_info *)); 102 int zfs_devread(int sector, int byte_offset, int byte_len, char *buf); 103 void zfs_set_blk_dev(struct blk_desc *rbdd, struct disk_partition *info); 104 void zfs_unmount(struct zfs_data *data); 105 int lzjb_decompress(void *, void *, uint32_t, uint32_t); 106 #endif 107