1 files changed, 63 insertions, 0 deletions
diff --git a/sw-old/z80/kernel/include/fs/fs.h b/sw-old/z80/kernel/include/fs/fs.h
new file mode 100644
index 0000000..ad20adb
--- /dev/null
+++ b/sw-old/z80/kernel/include/fs/fs.h
@@ -0,0 +1,63 @@
+#ifndef __FS_H__
+#define __FS_H__
+
+#include "types.h"
+
+#define FS_OFFSET 0x1000
+
+#define FS_BLOCKS_SIZE 512
+#define FS_BLOCKS_N     8
+#define FS_BLOCKS_IND   6
+
+#define INODE_TYPE_FILE   0x0
+#define INODE_TYPE_DIR    0x1
+#define INODE_TYPE_SLINK    0x2
+#define INODE_TYPE_SPECIAL  0x3
+
+#define INODE_META_SIZE 8
+
+/* inode basic structure */
+struct fs_inode
+{
+    /* inode meta data */
+
+    uint        mode :3;  // chmod
+    uint        uid :3;   // chown
+    uint        type :2;  // file, dir, sym-link, special
+
+    time_t      ctime;          // creation time
+
+    uint24_t     size;              // inode size
+
+    /* data storage informations */
+    /* it doesn't allocate memory, virtual size FS_BLOCKS_N */ 
+    blk_t     blocks[];
+};
+
+#define FS_DEV_ROM      0x7f    /* 01111111 */
+#define FS_DEV_NULL     0x80    /* 10000000 */
+
+#define FS_ROM_SPACE    0x2000  // second rom 
+
+#define FS_INO_ROOT   0x0       // first inode
+
+#define FS_INODE_ROOT(inode)   {inode.dev = 0xff; inode.inode = 0x0}
+#define FS_INODE_NULL(inode)   {inode.dev = 0x80; inode.inode = 0x0}
+
+#define FS_USE_ROM(inode)   {inode.dev == 0x7f}
+
+/* get block seek in current device */
+devsize_t fs_block(blk_t block);
+
+/* get common inode seek in current device */
+/* c_inode must be set first */
+/* returns seek at the beginning of blocks field */
+devsize_t fs_inode(struct fs_inode *buf);
+
+/* common inode for syscalls */
+extern inode_t c_inode;
+
+/* parse a path, absolute or relative to c_inode */
+inode_t fs_parse_path(const char *path);
+
+#endif  // __FS_H__