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| author | Stefan Roese <sr@denx.de> | 2008-08-13 06:47:12 +0200 |
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| committer | Stefan Roese <sr@denx.de> | 2008-08-13 06:47:12 +0200 |
| commit | 5a7ddf4e1fb9347f783eb1473c30187d7a22bd81 (patch) | |
| tree | 5e30fc06d7bbd5b382b1a7b89f57cd81a5246f32 /include/linux/mtd/blktrans.h | |
| parent | 9939ffd5fbf1f5aff4d8172531d4fc33797c62c8 (diff) | |
| parent | 8641ff266ae6638da201747c239fd39ba34c4958 (diff) | |
| download | u-boot-imx-5a7ddf4e1fb9347f783eb1473c30187d7a22bd81.zip u-boot-imx-5a7ddf4e1fb9347f783eb1473c30187d7a22bd81.tar.gz u-boot-imx-5a7ddf4e1fb9347f783eb1473c30187d7a22bd81.tar.bz2 | |
Merge branch 'master' of /home/stefan/git/u-boot/u-boot
Diffstat (limited to 'include/linux/mtd/blktrans.h')
| -rw-r--r-- | include/linux/mtd/blktrans.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h new file mode 100644 index 0000000..d1ded51 --- /dev/null +++ b/include/linux/mtd/blktrans.h @@ -0,0 +1,81 @@ +/* + * $Id: blktrans.h,v 1.6 2005/11/07 11:14:54 gleixner Exp $ + * + * (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__ */ |