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authorJorgen Lundman <lundman@lundman.net>2012-07-19 20:48:25 +0000
committerWolfgang Denk <wd@denx.de>2012-08-09 23:42:20 +0200
commit4d3c95f5ea7c737a21cd6b9c59435ee693b3f127 (patch)
treed11c09245a46d3b0a55c0937874fb2debcb96490 /include/zfs_common.h
parent753ac610880e6e563d0384bb114f8b41df89e520 (diff)
downloadu-boot-linaro-stable-4d3c95f5ea7c737a21cd6b9c59435ee693b3f127.tar.gz
zfs: Add ZFS filesystem support
U-Boot port is based on sources forked from GRUB-0.97 by Sun in 2004, which can be found here: http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/grub/grub-0.97/stage2/zfs-include/zfs.h Released by Sun for GRUB under the license: * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. GRUB official releases include ZFS in version: ftp://alpha.gnu.org/gnu/grub/grub-1.99~rc1.tar.gz And patched against GRUB Bazaar repository for ashift fixes (4KB HDDs) more conveniently found at github: https://github.com/pendor/grub-zfs/commit/e7b6ef3ac3b9685ac4c394c897b1d4221b7381f1 Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Diffstat (limited to 'include/zfs_common.h')
-rw-r--r--include/zfs_common.h109
1 files changed, 109 insertions, 0 deletions
diff --git a/include/zfs_common.h b/include/zfs_common.h
new file mode 100644
index 000000000..04e73d0cd
--- /dev/null
+++ b/include/zfs_common.h
@@ -0,0 +1,109 @@
+/*
+ * 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