1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * ZFS filesystem port for Uboot by 3*4882a593Smuzhiyun * Jorgen Lundman <lundman at lundman.net> 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * zfsfs support 6*4882a593Smuzhiyun * made from existing GRUB Sources by Sun, GNU and others. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or modify 9*4882a593Smuzhiyun * it under the terms of the GNU General Public License version 2 as 10*4882a593Smuzhiyun * published by the Free Software Foundation. 11*4882a593Smuzhiyun * 12*4882a593Smuzhiyun * This program is distributed in the hope that it will be useful, 13*4882a593Smuzhiyun * but WITHOUT ANY WARRANTY; without even the implied warranty of 14*4882a593Smuzhiyun * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15*4882a593Smuzhiyun * GNU General Public License for more details. 16*4882a593Smuzhiyun * 17*4882a593Smuzhiyun * You should have received a copy of the GNU General Public License 18*4882a593Smuzhiyun * along with this program; if not, write to the Free Software 19*4882a593Smuzhiyun * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20*4882a593Smuzhiyun */ 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun #ifndef __ZFS_COMMON__ 23*4882a593Smuzhiyun #define __ZFS_COMMON__ 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun #define SECTOR_SIZE 0x200 26*4882a593Smuzhiyun #define SECTOR_BITS 9 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun typedef enum zfs_endian { 30*4882a593Smuzhiyun UNKNOWN_ENDIAN = -2, 31*4882a593Smuzhiyun LITTLE_ENDIAN = -1, 32*4882a593Smuzhiyun BIG_ENDIAN = 0 33*4882a593Smuzhiyun } zfs_endian_t; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun /* Endian macros. */ 37*4882a593Smuzhiyun #define zfs_to_cpu16(x, a) (((a) == BIG_ENDIAN) ? be16_to_cpu(x) \ 38*4882a593Smuzhiyun : le16_to_cpu(x)) 39*4882a593Smuzhiyun #define cpu_to_zfs16(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be16(x) \ 40*4882a593Smuzhiyun : cpu_to_le16(x)) 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun #define zfs_to_cpu32(x, a) (((a) == BIG_ENDIAN) ? be32_to_cpu(x) \ 43*4882a593Smuzhiyun : le32_to_cpu(x)) 44*4882a593Smuzhiyun #define cpu_to_zfs32(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be32(x) \ 45*4882a593Smuzhiyun : cpu_to_le32(x)) 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #define zfs_to_cpu64(x, a) (((a) == BIG_ENDIAN) ? be64_to_cpu(x) \ 48*4882a593Smuzhiyun : le64_to_cpu(x)) 49*4882a593Smuzhiyun #define cpu_to_zfs64(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be64(x) \ 50*4882a593Smuzhiyun : cpu_to_le64(x)) 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun enum zfs_errors { 54*4882a593Smuzhiyun ZFS_ERR_NONE = 0, 55*4882a593Smuzhiyun ZFS_ERR_NOT_IMPLEMENTED_YET = -1, 56*4882a593Smuzhiyun ZFS_ERR_BAD_FS = -2, 57*4882a593Smuzhiyun ZFS_ERR_OUT_OF_MEMORY = -3, 58*4882a593Smuzhiyun ZFS_ERR_FILE_NOT_FOUND = -4, 59*4882a593Smuzhiyun ZFS_ERR_BAD_FILE_TYPE = -5, 60*4882a593Smuzhiyun ZFS_ERR_OUT_OF_RANGE = -6, 61*4882a593Smuzhiyun }; 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun struct zfs_filesystem { 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun /* Block Device Descriptor */ 66*4882a593Smuzhiyun struct blk_desc *dev_desc; 67*4882a593Smuzhiyun }; 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun struct device_s { 70*4882a593Smuzhiyun uint64_t part_length; 71*4882a593Smuzhiyun }; 72*4882a593Smuzhiyun typedef struct device_s *device_t; 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun struct zfs_file { 75*4882a593Smuzhiyun device_t device; 76*4882a593Smuzhiyun uint64_t size; 77*4882a593Smuzhiyun void *data; 78*4882a593Smuzhiyun uint64_t offset; 79*4882a593Smuzhiyun }; 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun typedef struct zfs_file *zfs_file_t; 82*4882a593Smuzhiyun 83*4882a593Smuzhiyun struct zfs_dirhook_info { 84*4882a593Smuzhiyun int dir; 85*4882a593Smuzhiyun int mtimeset; 86*4882a593Smuzhiyun time_t mtime; 87*4882a593Smuzhiyun time_t mtime2; 88*4882a593Smuzhiyun }; 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun 91*4882a593Smuzhiyun 92*4882a593Smuzhiyun 93*4882a593Smuzhiyun struct zfs_filesystem *zfsget_fs(void); 94*4882a593Smuzhiyun int zfs_open(zfs_file_t, const char *filename); 95*4882a593Smuzhiyun uint64_t zfs_read(zfs_file_t, char *buf, uint64_t len); 96*4882a593Smuzhiyun struct zfs_data *zfs_mount(device_t); 97*4882a593Smuzhiyun int zfs_close(zfs_file_t); 98*4882a593Smuzhiyun int zfs_ls(device_t dev, const char *path, 99*4882a593Smuzhiyun int (*hook) (const char *, const struct zfs_dirhook_info *)); 100*4882a593Smuzhiyun int zfs_devread(int sector, int byte_offset, int byte_len, char *buf); 101*4882a593Smuzhiyun void zfs_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info); 102*4882a593Smuzhiyun void zfs_unmount(struct zfs_data *data); 103*4882a593Smuzhiyun int lzjb_decompress(void *, void *, uint32_t, uint32_t); 104*4882a593Smuzhiyun #endif 105