u-boot/include/linux/mtd/blktrans.h
Scott Wood c45912d8ab NAND: sync with 2.6.27
This brings the core NAND code up to date with the Linux kernel.

Since there were several drivers in Linux as of the last update that are
not in u-boot, I'm not bringing over new drivers that have been added
since in the absence of an interested party.

I did not update OneNAND since it was recently synced by Kyungmin Park,
and I'm not sure exactly what the common ancestor is.

Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-10-29 10:42:16 -05:00

79 lines
1.9 KiB
C

/*
* (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>
#endif
struct 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__ */