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/*
* Project: S.Ha.R.K.
*
* Coordinators:
* Giorgio Buttazzo <giorgio@sssup.it>
* Paolo Gai <pj@gandalf.sssup.it>
*
* Authors :
* Paolo Gai <pj@gandalf.sssup.it>
* Massimiliano Giorgi <massy@gandalf.sssup.it>
* Luca Abeni <luca@gandalf.sssup.it>
* (see the web pages for full authors list)
*
* ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
*
* http://www.sssup.it
* http://retis.sssup.it
* http://shark.sssup.it
*/
/*
* Copyright (C) 1999 Massimiliano Giorgi
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*
* CVS : $Id: bdev.h,v 1.1.1.1 2002-03-29 14:12:51 pj Exp $
*
* File: $File$
* Revision: $Revision: 1.1.1.1 $
* Last update: $Date: 2002-03-29 14:12:51 $
*/
#ifndef __FS_BDEV_H__
#define __FS_BDEV_H__
#include <fs/types.h>
#define BDEV_OK 1
#define BDEV_FAIL 0
#define BDEV_ERROR -1
int bdev_trylock(__dev_t device);
int bdev_tryunlock(__dev_t device);
int bdev_read(__dev_t dev, __blkcnt_t blocknum, __uint8_t *buffer);
int bdev_write(__dev_t dev, __blkcnt_t blocknum, __uint8_t *buffer);
int bdev_seek(__dev_t dev, __blkcnt_t blocknum);
__uint8_t bdev_getdeffs(__dev_t device);
__dev_t bdev_find_byname(char *name);
__dev_t bdev_find_byfs(__uint8_t fsind);
int bdev_scan_devices(int(*callback)(__dev_t,__uint8_t));
int bdev_findname(__dev_t device, char **majorname, char **minorname);
/* for debug purpose */
void bdev_dump_names(void);
void bdev_dump_status(void);
#endif