path: root/drivers/char/rio/riotable.c

/*
** -----------------------------------------------------------------------------
**
**  Perle Specialix driver for Linux
**  Ported from existing RIO Driver for SCO sources.
 *
 *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
 *
 *      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., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**	Module		: riotable.c
**	SID		: 1.2
**	Last Modified	: 11/6/98 10:33:47
**	Retrieved	: 11/6/98 10:33:50
**
**  ident @(#)riotable.c	1.2
**
** -----------------------------------------------------------------------------
*/
#ifdef SCCS_LABELS
static char *_riotable_c_sccs_ = "@(#)riotable.c	1.2";
#endif

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/string.h>

#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>

#include <linux/termios.h>
#include <linux/serial.h>

#include <linux/generic_serial.h>


#include "linux_compat.h"
#include "rio_linux.h"
#include "typdef.h"
#include "pkt.h"
#include "daemon.h"
#include "rio.h"
#include "riospace.h"
#include "top.h"
#include "cmdpkt.h"
#include "map.h"
#include "riotypes.h"
#include "rup.h"
#include "port.h"
#include "riodrvr.h"
#include "rioinfo.h"
#include "func.h"
#include "errors.h"
#include "pci.h"

#include "parmmap.h"
#include "unixrup.h"
#include "board.h"
#include "host.h"
#include "error.h"
#include "phb.h"
#include "link.h"
#include "cmdblk.h"
#include "route.h"
#include "control.h"
#include "cirrus.h"
#include "rioioctl.h"
#include "param.h"
#include "list.h"
#include "sam.h"
#include "protsts.h"

/*
** A configuration table has been loaded. It is now up to us
** to sort it out and use the information contained therein.
*/
int
RIONewTable(p)
struct rio_info *	p;
{
	int Host, Host1, Host2, NameIsUnique, Entry, SubEnt;
	struct Map *MapP;
	struct Map *HostMapP;
	struct Host *HostP;

	char *cptr;

	/*
	** We have been sent a new table to install. We need to break
	** it down into little bits and spread it around a bit to see
	** what we have got.
	*/
	/*
	** Things to check:
	** (things marked 'xx' aren't checked any more!)
	** (1)	That there are no booted Hosts/RTAs out there.
	** (2)	That the names are properly formed
	** (3)	That blank entries really are.
	** xx (4)	That hosts mentioned in the table actually exist. xx
	** (5)	That the IDs are unique (per host).
	** (6)	That host IDs are zero
	** (7)	That port numbers are valid
	** (8)	That port numbers aren't duplicated
	** (9)	That names aren't duplicated
	** xx (10) That hosts that actually exist are mentioned in the table. xx
	*/
	rio_dprintk (RIO_DEBUG_TABLE, "RIONewTable: entering(1)\n"); 
	if ( p->RIOSystemUp ) {		/* (1) */
		p->RIOError.Error = HOST_HAS_ALREADY_BEEN_BOOTED;
		return -EBUSY;
	}

	p->RIOError.Error = NOTHING_WRONG_AT_ALL;
	p->RIOError.Entry = -1;
	p->RIOError.Other = -1;

	for ( Entry=0; Entry<TOTAL_MAP_ENTRIES; Entry++ ) {
		MapP = &p->RIOConnectTable[Entry];
		if ((MapP->Flags & RTA16_SECOND_SLOT) == 0) {
			rio_dprintk (RIO_DEBUG_TABLE, "RIONewTable: entering(2)\n");
			cptr = MapP->Name;		/* (2) */
			cptr[MAX_NAME_LEN-1]='\0';
			if ( cptr[0]=='\0' ) {
				bcopy(MapP->RtaUniqueNum?"RTA	NN":"HOST NN",MapP->Name,8);
				MapP->Name[5] = '0'+Entry/10;
				MapP->Name[6] = '0'+Entry%10;
			}
			while ( *cptr ) {
				if ( *cptr<' ' || *cptr>'~' ) {
					p->RIOError.Error = BAD_CHARACTER_IN_NAME;
					p->RIOError.Entry = Entry;
					return -ENXIO;
				}
				cptr++;
			}
		}

		/*
		** If the entry saved was a tentative entry then just forget
		** about it.
		*/
		if ( MapP->Flags & SLOT_TENTATIVE ) {
			MapP->HostUniqueNum = 0;
			MapP->RtaUniqueNum = 0;
			continue;
		}

		rio_dprintk (RIO_DEBUG_TABLE, "RIONewTable: entering(3)\n");
		if ( !MapP->RtaUniqueNum && !MapP->HostUniqueNum ) { /* (3) */
			if ( MapP->ID || MapP->SysPort || MapP->Flags ) {
				rio_dprintk (RIO_DEBUG_TABLE, "%s pretending to be empty but isn't\n",MapP->Name);
				p->RIOError