mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 15:37:23 +00:00
80 lines
1.9 KiB
C
80 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__ */
|