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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
*/
/***************************************
CVS : $Id: phdsk.c,v 1.1.1.1 2002-03-29 14:12:49 pj Exp $
Revision: $Revision: 1.1.1.1 $
Last update: $Date: 2002-03-29 14:12:49 $
This module register every physical disk into the system
(actually only for informational purpose).
***************************************/
/*
* 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
*
*/
#include "glue.h"
#include <fs/magic.h>
#include "phdsk.h"
/*+ an entry for every hard disk into the system +*/
static struct phdskinfo phdsk
[MAXPHDSK
];
/*++++++++++++++++++++++++++++++++++++++
Initialize the interal data structures. Must be called prior of every
routine in this module.
++++++++++++++++++++++++++++++++++++++*/
void phdsk_init
(void)
{
int i
;
for (i
=0;i
<MAXPHDSK
;i
++) {
#ifdef _PARANOIA
phdsk
[i
].
magic=PHDSK_MAGIC
;
#endif
memcpy(phdsk
[i
].
pd_name,"noname",7);
phdsk
[i
].
pd_device=0;
phdsk
[i
].
pd_size=0;
phdsk
[i
].
pd_sectsize=0;
#ifdef IDE_BLOCK_DEVICE
phdsk
[i
].
pd_ide_check_geom=0;
#endif
phdsk
[i
].
pd_phgeom.
cyls=0;
phdsk
[i
].
pd_phgeom.
heads=0;
phdsk
[i
].
pd_phgeom.
sectors=0;
phdsk
[i
].
pd_logeom.
cyls=0;
phdsk
[i
].
pd_logeom.
heads=0;
phdsk
[i
].
pd_logeom.
sectors=0;
}
}
/*++++++++++++++++++++++++++++++++++++++
Every block device module shall call this function to inform
the system that a physical hard-disk in available to the system.
struct phdskinfo *phdsk_register
return a pointer to a phdskinfo structure that hold hard disk information
or NULL in case of error
struct phdskinfo *disk
information on the physical hard disk
++++++++++++++++++++++++++++++++++++++*/
struct phdskinfo
*phdsk_register
(struct phdskinfo
*disk
)
{
int i
;
for (i
=0;i
<MAXPHDSK
;i
++)
if (phdsk
[i
].
pd_device==0) break;
if (i
==MAXPHDSK
||disk
->pd_device
==0) return NULL
;
//cprintf("pdisk dev %i\n",disk->pd_device);
memcpy(phdsk
+i
,disk
,sizeof(struct phdskinfo
));
//cprintf("pdisk dev %i\n",(phdsk+i)->pd_device);
return phdsk
+i
;
}