--- /dev/null
+/*
+ FileSystems common definitions
+
+ Copyright (C) 1999 Benjamin Herrenschmidt
+
+ 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.
+
+ 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#ifndef FS_H
+#define FS_H
+
+#include "partition.h"
+#include "file.h"
+
+struct fs_t {
+ const char* name;
+
+ int (*open)( struct boot_file_t* file,
+ const char* dev_name,
+ struct partition_t* part,
+ const char* file_name);
+
+ int (*read)( struct boot_file_t* file,
+ unsigned int size,
+ void* buffer);
+
+ int (*seek)( struct boot_file_t* file,
+ unsigned int newpos);
+
+ int (*close)( struct boot_file_t* file);
+};
+
+extern const struct fs_t *fs_of;
+extern const struct fs_t *fs_of_netboot;
+
+const struct fs_t *fs_open( struct boot_file_t *file, const char *dev_name,
+ struct partition_t *part, const char *file_name );
+
+#if DEBUG
+# define DEBUG_ENTER prom_printf( "--> %s\n", __PRETTY_FUNCTION__ );
+# define DEBUG_LEAVE(str) \
+ prom_printf( "<-- %s - %s\n", __PRETTY_FUNCTION__, #str );
+# define DEBUG_F(fmt, args...)\
+{\
+ prom_printf( " %s - ", __PRETTY_FUNCTION__ );\
+ prom_printf( fmt, ## args );\
+}
+# define DEBUG_OPEN DEBUG_F( "dev=%s, part=0x%08lx (%d), file_name=%s\n",\
+ dev_name, part, part ? part->part_number : -1,\
+ file_name);
+#else
+#define DEBUG_ENTER
+#define DEBUG_LEAVE(x)
+#define DEBUG_F(fmt, args...)
+#define DEBUG_OPEN
+#endif
+
+#endif