/* * (C) 2003 David Woodhouse <dwmw2@infradead.org> * * Interface to Linux block layer for MTD 'translation layers'. * */#ifndef __MTD_TRANS_H__#define __MTD_TRANS_H__/* XXX U-BOOT XXX */#if 0#include <linux/mutex.h>#else#include <linux/list.h>#endifstruct hd_geometry;struct mtd_info;struct mtd_blktrans_ops;struct file;struct inode;struct mtd_blktrans_dev {	struct mtd_blktrans_ops *tr;	struct list_head list;	struct mtd_info *mtd;/* XXX U-BOOT XXX */#if 0	struct mutex lock;#endif	int devnum;	unsigned long size;	int readonly;	void *blkcore_priv; /* gendisk in 2.5, devfs_handle in 2.4 */};struct blkcore_priv; /* Differs for 2.4 and 2.5 kernels; private */struct mtd_blktrans_ops {	char *name;	int major;	int part_bits;	int blksize;	int blkshift;	/* Access functions */	int (*readsect)(struct mtd_blktrans_dev *dev,		    unsigned long block, char *buffer);	int (*writesect)(struct mtd_blktrans_dev *dev,		     unsigned long block, char *buffer);	/* Block layer ioctls */	int (*getgeo)(struct mtd_blktrans_dev *dev, struct hd_geometry *geo);	int (*flush)(struct mtd_blktrans_dev *dev);	/* Called with mtd_table_mutex held; no race with add/remove */	int (*open)(struct mtd_blktrans_dev *dev);	int (*release)(struct mtd_blktrans_dev *dev);	/* Called on {de,}registration and on subsequent addition/removal	   of devices, with mtd_table_mutex held. */	void (*add_mtd)(struct mtd_blktrans_ops *tr, struct mtd_info *mtd);	void (*remove_dev)(struct mtd_blktrans_dev *dev);	struct list_head devs;	struct list_head list;	struct module *owner;	struct mtd_blkcore_priv *blkcore_priv;};extern int register_mtd_blktrans(struct mtd_blktrans_ops *tr);extern int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr);extern int add_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);#endif /* __MTD_TRANS_H__ */