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/*
* Copyright (C) 2012-2013 Samsung Electronics Co., Ltd.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/************************************************************************/
/* */
/* PROJECT : exFAT & FAT12/16/32 File System */
/* FILE : exfat_blkdev.h */
/* PURPOSE : Header File for exFAT Block Device Driver Glue Layer */
/* */
/*----------------------------------------------------------------------*/
/* NOTES */
/* */
/*----------------------------------------------------------------------*/
/* REVISION HISTORY (Ver 0.9) */
/* */
/* - 2010.11.15 [Joosun Hahn] : first writing */
/* */
/************************************************************************/
#ifndef _EXFAT_BLKDEV_H
#define _EXFAT_BLKDEV_H
#include <linux/fs.h>
#include "exfat_config.h"
/*----------------------------------------------------------------------*/
/* Constant & Macro Definitions (Non-Configurable) */
/*----------------------------------------------------------------------*/
/*----------------------------------------------------------------------*/
/* Type Definitions */
/*----------------------------------------------------------------------*/
typedef struct __BD_INFO_T {
s32 sector_size; /* in bytes */
s32 sector_size_bits;
s32 sector_size_mask;
s32 num_sectors; /* total number of sectors in this block device */
bool opened; /* opened or not */
} BD_INFO_T;
/*----------------------------------------------------------------------*/
/* External Variable Declarations */
/*----------------------------------------------------------------------*/
/*----------------------------------------------------------------------*/
/* External Function Declarations */
/*----------------------------------------------------------------------*/
s32 bdev_init(void);
s32 bdev_shutdown(void);
s32 bdev_open(struct super_block *sb);
s32 bdev_close(struct super_block *sb);
s32 bdev_read(struct super_block *sb, sector_t secno, struct buffer_head **bh, u32 num_secs, s32 read);
s32 bdev_write(struct super_block *sb, sector_t secno, struct buffer_head *bh, u32 num_secs, s32 sync);
s32 bdev_sync(struct super_block *sb);
#endif /* _EXFAT_BLKDEV_H */