drivers/char/rio/rioctrl.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		: rioctrl.c
**	SID		: 1.3
**	Last Modified	: 11/6/98 10:33:42
**	Retrieved	: 11/6/98 10:33:49
**
**  ident @(#)rioctrl.c	1.3
**
** -----------------------------------------------------------------------------
*/
#ifdef SCCS_LABELS
static char *_rioctrl_c_sccs_ = "@(#)rioctrl.c	1.3";
#endif


#include <linux/module.h>
#include <linux/slab.h>
#include <linux/errno.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"


static struct LpbReq	 LpbReq;
static struct RupReq	 RupReq;
static struct PortReq	PortReq;
static struct HostReq	HostReq;
static struct HostDpRam HostDpRam;
static struct DebugCtrl DebugCtrl;
static struct Map		 MapEnt;
static struct PortSetup PortSetup;
static struct DownLoad	DownLoad;
static struct SendPack  SendPack;
/* static struct StreamInfo	StreamInfo; */
/* static char modemtable[RIO_PORTS]; */
static struct SpecialRupCmd SpecialRupCmd;
static struct PortParams PortParams;
static struct portStats portStats;

static struct SubCmdStruct {
	ushort	Host;
	ushort	Rup;
	ushort	Port;
	ushort	Addr;
} SubCmd;

struct PortTty {
	uint		port;
	struct ttystatics	Tty;
};

static struct PortTty	PortTty;
typedef struct ttystatics TERMIO;

/*
** This table is used when the config.rio downloads bin code to the
** driver. We index the table using the product code, 0-F, and call
** the function pointed to by the entry, passing the information
** about the boot.
** The RIOBootCodeUNKNOWN entry is there to politely tell the calling
** process to bog off.
*/
static int 
(*RIOBootTable[MAX_PRODUCT])(struct rio_info *, struct DownLoad *) =
{
/* 0 */	RIOBootCodeHOST,	/* Host Card */
/* 1 */	RIOBootCodeRTA,		/* RTA */
};

#define drv_makedev(maj, min) ((((uint) maj & 0xff) << 8) | ((uint) min & 0xff))

int copyin (int arg, caddr_t dp, int siz)
{
  int rv;

  rio_dprintk (RIO_DEBUG_CTRL, "Copying %d bytes from user %p to %p.\n", siz, (void *)arg, dp);
  rv = copy_from_user (dp, (void *)arg, siz);
  if (rv) return COPYFAIL;
  else return rv;
}

static int copyout (caddr_t dp, int arg, int siz)
{
  int rv;

  rio_dprintk (RIO_DEBUG_CTRL, "Copying %d bytes to user %p from %p.\n", siz, (void *)arg, dp);
  rv = copy_to_user ((void *)arg, dp, siz);
  if (rv) return COPYFAIL;
  else return rv;
}

int
riocontrol(p, dev, cmd, arg, su)
struct rio_info	* p;
dev_t		dev;
int		cmd;
caddr_t		arg;
int		su;
{
	uint	Host;	/* leave me unsigned! */
	uint	port;	/* and me! */
	struct Host	*HostP;
	ushort	loop;
	int		Entry;
	struct Port	*PortP;
	PKT	*PacketP;
	int		retval = 0;
	unsigned long flags;
	
	func_enter ();
	
	/* Confuse the compiler to think that we've initialized these */
	Host=0;
	PortP = NULL;

	rio_dprintk (RIO_DEBUG_CTRL, "control ioctl cmd: 0x%x arg: 0x%x\n", cmd, (int)arg);

	switch (cmd) {
		/*
		** RIO_SET_TIMER
		**
		** Change the value of the host card interrupt timer.
		** If the host card number is -1 then all host cards are changed
		** otherwise just the specified host card will be changed.
		*/
		case RIO_SET_TIMER:
			rio_dprintk (RIO_DEBUG_CTRL, "RIO_SET_TIMER to %dms\n", (uint)arg);
			{
				int host, value;
				host = (uint)arg >> 16;
				value = (uint)arg & 0x0000ffff;
				if (host == -1) {
					for (host = 0; host < p->RIONumHosts; host++) {
						if (p->RIOHosts[host].Flags == RC_RUNNING) {
							WWORD(p->RIOHosts[host].ParmMapP->timer , value);
						}
					}
				} else if (host >= p->RIONumHosts) {
					return -EINVAL;
				} else {
					if ( p->RIOHosts[host].Flags == RC_RUNNING ) {
						WWORD(p->RIOHosts[host].ParmMapP->timer , value);
					}
				}
			}
			return 0;

		case RIO_IDENTIFY_DRIVER:
			/*
			** 15.10.1998 ARG - ESIL 0760 part fix
			** Added driver ident string output.
			**
#ifndef __THIS_RELEASE__
#warning Driver Version string not defined !
#endif
			cprintf("%s %s %s %s\n",
				RIO_DRV_STR,
				__THIS_RELEASE__,
				__DATE__, __TIME__ );

			return 0;

		case RIO_DISPLAY_HOST_CFG:
			**
			** 15.10.1998 ARG - ESIL 0760 part fix
			** Added driver host card ident string output.
			**
			** Note that the only types currently supported
			** are ISA and PCI. Also this driver does not
			** (yet) distinguish between the Old PCI card
			** and the Jet PCI card. In fact I think this
			** driver only supports JET PCI !
			**

			for (Host = 0; Host < p->RIONumHosts; Host++)
			{
				HostP = &(p->RIOHosts[Host]);

				switch ( HostP->Type )
				{
				    case RIO_AT :
					strcpy( host_type, RIO_AT_HOST_STR );
					break;

				    case RIO_PCI :
					strcpy( host_type, RIO_PCI_HOST_STR );
					break;

				    default :
					strcpy( host_type, "Unknown" );
					break;
				}

				cprintf(
				  "RIO Host %d - Type:%s Addr:%X IRQ:%d\n",
					Host, host_type,
					(uint)HostP->PaddrP,
					(int)HostP->Ivec - 32  );
			}
			return 0;
			**
			*/

		case RIO_FOAD_RTA:
			rio_dprintk (RIO_DEBUG_CTRL, "RIO_FOAD_RTA\n");
			return RIOCommandRta(p, (uint)arg, RIOFoadRta);

		case RIO_ZOMBIE_RTA:
			rio_dprintk (RIO_DEBUG_CTRL, "RIO_ZOMBIE_RTA\n");
			return RIOCommandRta(p, (uint)arg, RIOZombieRta);

		case RIO_IDENTIFY_RTA:
			rio_dprintk (RIO_DEBUG_CTRL, "RIO_IDENTIFY_RTA\n");
			return RIOIdentifyRta(p, arg);

		case RIO_KILL_NEIGHBOUR:
			rio_dprintk (RIO_DEBUG_CTRL, "RIO_KILL_NEIGHBOUR\n");
			return RIOKillNeighbour(p, arg);

		case SPECIAL_RUP_CMD:
			{
				struct CmdBlk *CmdBlkP;

				rio_dprintk (RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD\n");
				if (copyin((int)arg, (caddr_t)&SpecialRupCmd, 
							sizeof(SpecialRupCmd)) == COPYFAIL ) {
					rio_dprintk (RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD copy failed\n");
					p->RIOError.Error = COPYIN_FAILED;
		 			return -EFAULT;
				}
				CmdBlkP = RIOGetCmdBlk();
				if ( !CmdBlkP ) {
					rio_dprintk (RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD GetCmdBlk failed\n");
					return -ENXIO;
				}
				CmdBlkP->Packet = SpecialRupCmd.Packet;
				if ( SpecialRupCmd.Host >= p->RIONumHosts )
					SpecialRupCmd.Host = 0;
					rio_dprintk (RIO_DEBUG_CTRL, "Queue special rup command for host %d rup %d\n",
						SpecialRupCmd.Host, SpecialRupCmd.RupNum);
					if (RIOQueueCmdBlk(&p->RIOHosts[SpecialRupCmd.Host], 
							SpecialRupCmd.RupNum, CmdBlkP) == RIO_FAIL) {
						cprintf("FAILED TO QUEUE SPECIAL RUP COMMAND\n");
					}
					return 0;
				}

			case RIO_DEBUG_MEM:
#ifdef DEBUG_MEM_SUPPORT
RIO_DEBUG_CTRL, 				if (su)
					return rio_RIODebugMemory(RIO_DEBUG_CTRL, arg);
				else
#endif
					return -EPERM;

			case RIO_ALL_MODEM:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_ALL_MODEM\n");
				p->RIOError.Error = IOCTL_COMMAND_UNKNOWN;
				return -EINVAL;

			case RIO_GET_TABLE:
				/*
				** Read the routing table from the device driver to user space
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_TABLE\n");

				if ((retval = RIOApel(p)) != 0)
		 			return retval;

				if (copyout((caddr_t)p->RIOConnectTable, (int)arg,
						TOTAL_MAP_ENTRIES*sizeof(struct Map)) == COPYFAIL) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_TABLE copy failed\n");
		 			p->RIOError.Error = COPYOUT_FAILED;
		 			return -EFAULT;
				}

				{
					int entry;
					rio_dprintk (RIO_DEBUG_CTRL,  "*****\nMAP ENTRIES\n");
					for ( entry=0; entry<TOTAL_MAP_ENTRIES; entry++ )
					{
					  if ((p->RIOConnectTable[entry].ID == 0) &&
					      (p->RIOConnectTable[entry].HostUniqueNum == 0) &&
					      (p->RIOConnectTable[entry].RtaUniqueNum == 0)) continue;
					      
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.HostUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].HostUniqueNum );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.RtaUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].RtaUniqueNum );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.ID = 0x%x\n", entry, p->RIOConnectTable[entry].ID );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.ID2 = 0x%x\n", entry, p->RIOConnectTable[entry].ID2 );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Flags = 0x%x\n", entry, (int)p->RIOConnectTable[entry].Flags );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.SysPort = 0x%x\n", entry, (int)p->RIOConnectTable[entry].SysPort );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Top[0].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[0].Unit );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Top[0].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[0].Link );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Top[1].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[1].Unit );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Top[1].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[1].Link );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Top[2].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[2].Unit );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Top[2].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[2].Link );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Top[3].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[3].Unit );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Top[4].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[3].Link );
						rio_dprintk (RIO_DEBUG_CTRL, "Map entry %d.Name = %s\n", entry, p->RIOConnectTable[entry].Name );
					}
					rio_dprintk (RIO_DEBUG_CTRL,  "*****\nEND MAP ENTRIES\n");
				}
				p->RIOQuickCheck = NOT_CHANGED;	/* a table has been gotten */
				return 0;

			case RIO_PUT_TABLE:
				/*
				** Write the routing table to the device driver from user space
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_PUT_TABLE\n");

				if ( !su ) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_PUT_TABLE !Root\n");
		 			p->RIOError.Error = NOT_SUPER_USER;
		 			return -EPERM;
				}
				if ( copyin((int)arg, (caddr_t)&p->RIOConnectTable[0], 
					TOTAL_MAP_ENTRIES*sizeof(struct Map) ) == COPYFAIL ) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_PUT_TABLE copy failed\n");
		 			p->RIOError.Error = COPYIN_FAILED;
		 			return -EFAULT;
				}
/*
***********************************
				{
					int entry;
					rio_dprint(RIO_DEBUG_CTRL,  ("*****\nMAP ENTRIES\n") );
					for ( entry=0; entry<TOTAL_MAP_ENTRIES; entry++ )
					{
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.HostUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].HostUniqueNum ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.RtaUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].RtaUniqueNum ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.ID = 0x%x\n", entry, p->RIOConnectTable[entry].ID ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.ID2 = 0x%x\n", entry, p->RIOConnectTable[entry].ID2 ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Flags = 0x%x\n", entry, p->RIOConnectTable[entry].Flags ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.SysPort = 0x%x\n", entry, p->RIOConnectTable[entry].SysPort ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[0].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[0].Unit ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[0].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[0].Link ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[1].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[1].Unit ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[1].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[1].Link ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[2].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[2].Unit ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[2].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[2].Link ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[3].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[3].Unit ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[4].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[3].Link ) );
						rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Name = %s\n", entry, p->RIOConnectTable[entry].Name ) );
					}
					rio_dprint(RIO_DEBUG_CTRL,  ("*****\nEND MAP ENTRIES\n") );
				}
***********************************
*/
				return RIONewTable(p);

	 		case RIO_GET_BINDINGS :
				/*
				** Send bindings table, containing unique numbers of RTAs owned
				** by this system to user space
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_BINDINGS\n");

				if ( !su )
				{
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_BINDINGS !Root\n");
		 			p->RIOError.Error = NOT_SUPER_USER;
		 			return -EPERM;
				}
				if (copyout((caddr_t) p->RIOBindTab, (int)arg, 
						(sizeof(ulong) * MAX_RTA_BINDINGS)) == COPYFAIL ) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_BINDINGS copy failed\n");
		 			p->RIOError.Error = COPYOUT_FAILED;
		 			return -EFAULT;
				}
				return 0;

	 		case RIO_PUT_BINDINGS :
			/*
			** Receive a bindings table, containing unique numbers of RTAs owned
			** by this system
			*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS\n");

				if ( !su )
				{
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS !Root\n");
		 			p->RIOError.Error = NOT_SUPER_USER;
		 			return -EPERM;
				}
				if (copyin((int)arg, (caddr_t)&p->RIOBindTab[0], 
						(sizeof(ulong) * MAX_RTA_BINDINGS))==COPYFAIL ) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS copy failed\n");
		 			p->RIOError.Error = COPYIN_FAILED;
		 			return -EFAULT;
				}
				return 0;

			case RIO_BIND_RTA :
				{
					int	EmptySlot = -1;
					/*
					** Bind this RTA to host, so that it will be booted by 
					** host in 'boot owned RTAs' mode.
					*/
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_BIND_RTA\n");

					if ( !su ) {
		 				rio_dprintk (RIO_DEBUG_CTRL, "RIO_BIND_RTA !Root\n");
		 				p->RIOError.Error = NOT_SUPER_USER;
		 				return -EPERM;
					}
					for (Entry = 0; Entry < MAX_RTA_BINDINGS; Entry++) {
		 				if ((EmptySlot == -1) && (p->RIOBindTab[Entry] == 0L))
							EmptySlot = Entry;
		 				else if (p->RIOBindTab[Entry] == (int) arg) {
							/*
							** Already exists - delete
							*/
							p->RIOBindTab[Entry] = 0L;
							rio_dprintk (RIO_DEBUG_CTRL, "Removing Rta %x from p->RIOBindTab\n",
		 												(int) arg);
							return 0;
		 				}
					}
					/*
					** Dosen't exist - add
					*/
					if (EmptySlot != -1) {
		 				p->RIOBindTab[EmptySlot] = (int) arg;
		 				rio_dprintk (RIO_DEBUG_CTRL, "Adding Rta %x to p->RIOBindTab\n",
		  					(int) arg);
					}
					else {
		 				rio_dprintk (RIO_DEBUG_CTRL, "p->RIOBindTab full! - Rta %x not added\n",
		  					(int) arg);
		 				return -ENOMEM;
					}
					return 0;
				}

			case RIO_RESUME :
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_RESUME\n");
				port = (uint) arg;
				if ((port < 0) || (port > 511)) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_RESUME: Bad port number %d\n", port);
		 			p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
		 			return -EINVAL;
				}
				PortP = p->RIOPortp[port];
				if (!PortP->Mapped) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_RESUME: Port %d not mapped\n", port);
		 			p->RIOError.Error = PORT_NOT_MAPPED_INTO_SYSTEM;
		 			return -EINVAL;
				}
				if (!(PortP->State & (RIO_LOPEN | RIO_MOPEN))) {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_RESUME: Port %d not open\n", port);
		 			return -EINVAL;
				}

				rio_spin_lock_irqsave(&PortP->portSem, flags);
				if (RIOPreemptiveCmd(p, (p->RIOPortp[port]), RESUME) == 
										RIO_FAIL) {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_RESUME failed\n");
					rio_spin_unlock_irqrestore(&PortP->portSem, flags);
					return -EBUSY;
				}
				else {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_RESUME: Port %d resumed\n", port);
					PortP->State |= RIO_BUSY;
				}
				rio_spin_unlock_irqrestore(&PortP->portSem, flags);
				return retval;

			case RIO_ASSIGN_RTA:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_ASSIGN_RTA\n");
				if ( !su ) {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_ASSIGN_RTA !Root\n");
					p->RIOError.Error = NOT_SUPER_USER;
					return -EPERM;
				}
				if (copyin((int)arg, (caddr_t)&MapEnt, sizeof(MapEnt))
									== COPYFAIL) {
					rio_dprintk (RIO_DEBUG_CTRL, "Copy from user space failed\n");
					p->RIOError.Error = COPYIN_FAILED;
					return -EFAULT;
				}
				return RIOAssignRta(p, &MapEnt);

			case RIO_CHANGE_NAME:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_CHANGE_NAME\n");
				if ( !su ) {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_CHANGE_NAME !Root\n");
					p->RIOError.Error = NOT_SUPER_USER;
					return -EPERM;
				}
				if (copyin((int)arg, (caddr_t)&MapEnt, sizeof(MapEnt))
						== COPYFAIL) {
					rio_dprintk (RIO_DEBUG_CTRL, "Copy from user space failed\n");
					p->RIOError.Error = COPYIN_FAILED;
					return -EFAULT;
				}
				return RIOChangeName(p, &MapEnt);

			case RIO_DELETE_RTA:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_DELETE_RTA\n");
				if ( !su ) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_DELETE_RTA !Root\n");
		 			p->RIOError.Error = NOT_SUPER_USER;
		 			return -EPERM;
				}
				if (copyin((int)arg, (caddr_t)&MapEnt, sizeof(MapEnt))
							== COPYFAIL ) {
		 			rio_dprintk (RIO_DEBUG_CTRL, "Copy from data space failed\n");
		 			p->RIOError.Error = COPYIN_FAILED;
		 			return -EFAULT;
				}
				return RIODeleteRta(p, &MapEnt);

			case RIO_QUICK_CHECK:
				/*
				** 09.12.1998 ARG - ESIL 0776 part fix
				** A customer was using this to get the RTAs
				** connect/disconnect status.
				** RIOConCon() had been botched use RIOHalted
				** to keep track of RTA connections and
				** disconnections. That has been changed and
				** RIORtaDisCons in the rio_info struct now
				** does the job. So we need to return the value
				** of RIORtaCons instead of RIOHalted.
				**
				if (copyout((caddr_t)&p->RIOHalted,(int)arg,
							sizeof(uint))==COPYFAIL) {
				**
				*/

				if (copyout((caddr_t)&p->RIORtaDisCons,(int)arg,
							sizeof(uint))==COPYFAIL) {
					p->RIOError.Error = COPYOUT_FAILED;
					return -EFAULT;
				}
				return 0;

			case RIO_LAST_ERROR:
				if (copyout((caddr_t)&p->RIOError, (int)arg, 
						sizeof(struct Error)) ==COPYFAIL )
					return -EFAULT;
				return 0;

			case RIO_GET_LOG:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_LOG\n");
#ifdef LOGGING
				RIOGetLog(arg);
				return 0;
#else
				return -EINVAL;
#endif

			case RIO_GET_MODTYPE:
				if ( copyin( (int)arg, (caddr_t)&port, 
									sizeof(uint)) == COPYFAIL )
				{
		 			p->RIOError.Error = COPYIN_FAILED;
		 			return -EFAULT;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Get module type for port %d\n", port);
				if ( port < 0 || port > 511 )
				{
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_MODTYPE: Bad port number %d\n", port);
		 			p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
		 			return -EINVAL;
				}
				PortP = (p->RIOPortp[port]);
				if (!PortP->Mapped)
				{
		 			rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_MODTYPE: Port %d not mapped\n", port);
		 			p->RIOError.Error = PORT_NOT_MAPPED_INTO_SYSTEM;
		 			return -EINVAL;
				}
				/*
				** Return module type of port
				*/
				port = PortP->HostP->UnixRups[PortP->RupNum].ModTypes;
				if (copyout((caddr_t)&port, (int)arg, 
							sizeof(uint)) == COPYFAIL) {
		 			p->RIOError.Error = COPYOUT_FAILED;
		 			return -EFAULT;
				}
				return(0);
			/*
			** 02.03.1999 ARG - ESIL 0820 fix
			** We are no longer using "Boot Mode", so these ioctls
			** are not required :
			**
	 		case RIO_GET_BOOT_MODE :
				rio_dprint(RIO_DEBUG_CTRL, ("Get boot mode - %x\n", p->RIOBootMode));
				**
				** Return boot state of system - BOOT_ALL, BOOT_OWN or BOOT_NONE
				**
				if (copyout((caddr_t)&p->RIOBootMode, (int)arg, 
						sizeof(p->RIOBootMode)) == COPYFAIL) {
		 			p->RIOError.Error = COPYOUT_FAILED;
		 			return -EFAULT;
				}
				return(0);
			
 			case RIO_SET_BOOT_MODE :
				p->RIOBootMode = (uint) arg;
				rio_dprint(RIO_DEBUG_CTRL, ("Set boot mode to 0x%x\n", p->RIOBootMode));
				return(0);
			**
			** End ESIL 0820 fix
			*/

	 		case RIO_BLOCK_OPENS:
				rio_dprintk (RIO_DEBUG_CTRL, "Opens block until booted\n");
				for ( Entry=0; Entry < RIO_PORTS; Entry++ ) {
		 			rio_spin_lock_irqsave(&PortP->portSem, flags);
		 			p->RIOPortp[Entry]->WaitUntilBooted = 1;
		 			rio_spin_unlock_irqrestore(&PortP->portSem, flags);
				}
				return 0;
			
	 		case RIO_SETUP_PORTS:
				rio_dprintk (RIO_DEBUG_CTRL, "Setup ports\n");
				if (copyin((int)arg, (caddr_t)&PortSetup, sizeof(PortSetup)) 
						== COPYFAIL ) {
					 p->RIOError.Error = COPYIN_FAILED;
					 rio_dprintk (RIO_DEBUG_CTRL, "EFAULT");
					 return -EFAULT;
				}
				if ( PortSetup.From > PortSetup.To || 
								PortSetup.To >= RIO_PORTS ) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 rio_dprintk (RIO_DEBUG_CTRL, "ENXIO");
					 return -ENXIO;
				}
				if ( PortSetup.XpCps > p->RIOConf.MaxXpCps ||
					 PortSetup.XpCps < p->RIOConf.MinXpCps ) {
					 p->RIOError.Error = XPRINT_CPS_OUT_OF_RANGE;
					 rio_dprintk (RIO_DEBUG_CTRL, "EINVAL");
					 return -EINVAL;
				}
				if ( !p->RIOPortp ) {
					 cprintf("No p->RIOPortp array!\n");
					 rio_dprintk (RIO_DEBUG_CTRL, "No p->RIOPortp array!\n");
					 return -EIO;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "entering loop (%d %d)!\n", PortSetup.From, PortSetup.To);
				for (loop=PortSetup.From; loop<=PortSetup.To; loop++) {
				rio_dprintk (RIO_DEBUG_CTRL, "in loop (%d)!\n", loop);
#if 0
					PortP = p->RIOPortp[loop];
					if ( !PortP->TtyP )
						PortP->TtyP = &p->channel[loop];

		 				rio_spin_lock_irqsave(&PortP->portSem, flags);
						if ( PortSetup.IxAny )
							PortP->Config |= RIO_IXANY;
						else
							PortP->Config &= ~RIO_IXANY;
						if ( PortSetup.IxOn )
							PortP->Config |= RIO_IXON;
						else
							PortP->Config &= ~RIO_IXON;
					 
					 /*
					 ** If the port needs to wait for all a processes output
					 ** to drain before closing then this flag will be set.
					 */
					 	if (PortSetup.Drain) {
							PortP->Config |= RIO_WAITDRAIN;
					 	} else {
							PortP->Config &= ~RIO_WAITDRAIN;
					 	}
					 /*
					 ** Store settings if locking or unlocking port or if the
					 ** port is not locked, when setting the store option.
					 */
					 if (PortP->Mapped &&
						 ((PortSetup.Lock && !PortP->Lock) ||
							(!PortP->Lock &&
							(PortSetup.Store && !PortP->Store)))) {
						PortP->StoredTty.iflag = PortP->TtyP->tm.c_iflag;
						PortP->StoredTty.oflag = PortP->TtyP->tm.c_oflag;
						PortP->StoredTty.cflag = PortP->TtyP->tm.c_cflag;
						PortP->StoredTty.lflag = PortP->TtyP->tm.c_lflag;
						PortP->StoredTty.line = PortP->TtyP->tm.c_line;
						bcopy(PortP->TtyP->tm.c_cc, PortP->StoredTty.cc,
					 		NCC + 5);
					 }
					 PortP->Lock = PortSetup.Lock;
					 PortP->Store = PortSetup.Store;
					 PortP->Xprint.XpCps = PortSetup.XpCps;
					 bcopy(PortSetup.XpOn,PortP->Xprint.XpOn,MAX_XP_CTRL_LEN);
					 bcopy(PortSetup.XpOff,PortP->Xprint.XpOff,MAX_XP_CTRL_LEN);
					 PortP->Xprint.XpOn[MAX_XP_CTRL_LEN-1] = '\0';
					 PortP->Xprint.XpOff[MAX_XP_CTRL_LEN-1] = '\0';
					 PortP->Xprint.XpLen = RIOStrlen(PortP->Xprint.XpOn)+
								RIOStrlen(PortP->Xprint.XpOff);
					 rio_spin_unlock_irqrestore( &PortP->portSem , flags);
#endif
				}
				rio_dprintk (RIO_DEBUG_CTRL, "after loop (%d)!\n", loop);
				rio_dprintk (RIO_DEBUG_CTRL, "Retval:%x\n", retval);
				return retval;

			case RIO_GET_PORT_SETUP :
				rio_dprintk (RIO_DEBUG_CTRL, "Get port setup\n");
				if (copyin((int)arg, (caddr_t)&PortSetup, sizeof(PortSetup)) 
							== COPYFAIL ) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if ( PortSetup.From >= RIO_PORTS ) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}

				port = PortSetup.To = PortSetup.From;
				PortSetup.IxAny = (p->RIOPortp[port]->Config & RIO_IXANY) ? 
													1 : 0;
				PortSetup.IxOn = (p->RIOPortp[port]->Config & RIO_IXON) ? 
													1 : 0;
				PortSetup.Drain = (p->RIOPortp[port]->Config & RIO_WAITDRAIN) ?
												 	1 : 0;
				PortSetup.Store = p->RIOPortp[port]->Store;
				PortSetup.Lock = p->RIOPortp[port]->Lock;
				PortSetup.XpCps = p->RIOPortp[port]->Xprint.XpCps;
				bcopy(p->RIOPortp[port]->Xprint.XpOn, PortSetup.XpOn,
													MAX_XP_CTRL_LEN);
				bcopy(p->RIOPortp[port]->Xprint.XpOff, PortSetup.XpOff,
													MAX_XP_CTRL_LEN);
				PortSetup.XpOn[MAX_XP_CTRL_LEN-1] = '\0';
				PortSetup.XpOff[MAX_XP_CTRL_LEN-1] = '\0';

				if ( copyout((caddr_t)&PortSetup,(int)arg,sizeof(PortSetup))
														==COPYFAIL ) {
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return retval;

			case RIO_GET_PORT_PARAMS :
				rio_dprintk (RIO_DEBUG_CTRL, "Get port params\n");
				if (copyin( (int)arg, (caddr_t)&PortParams,
					sizeof(struct PortParams)) == COPYFAIL) {
					p->RIOError.Error = COPYIN_FAILED;
					return -EFAULT;
				}
				if (PortParams.Port >= RIO_PORTS) {
					p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					return -ENXIO;
				}
				PortP = (p->RIOPortp[PortParams.Port]);
				PortParams.Config = PortP->Config;
				PortParams.State = PortP->State;
				rio_dprintk (RIO_DEBUG_CTRL, "Port %d\n", PortParams.Port);

				if (copyout((caddr_t)&PortParams, (int)arg, 
						sizeof(struct PortParams)) == COPYFAIL ) {
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return retval;

			case RIO_GET_PORT_TTY :
				rio_dprintk (RIO_DEBUG_CTRL, "Get port tty\n");
				if (copyin((int)arg, (caddr_t)&PortTty, sizeof(struct PortTty)) 
						== COPYFAIL) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if ( PortTty.port >= RIO_PORTS ) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}

				rio_dprintk (RIO_DEBUG_CTRL, "Port %d\n", PortTty.port);
				PortP = (p->RIOPortp[PortTty.port]);
#if 0
				PortTty.Tty.tm.c_iflag = PortP->TtyP->tm.c_iflag;
				PortTty.Tty.tm.c_oflag = PortP->TtyP->tm.c_oflag;
				PortTty.Tty.tm.c_cflag = PortP->TtyP->tm.c_cflag;
				PortTty.Tty.tm.c_lflag = PortP->TtyP->tm.c_lflag;
#endif
				if (copyout((caddr_t)&PortTty, (int)arg, 
							sizeof(struct PortTty)) == COPYFAIL) {
					p->RIOError.Error = COPYOUT_FAILED;
					return -EFAULT;
				}
				return retval;

			case RIO_SET_PORT_TTY :
				if (copyin((int)arg, (caddr_t)&PortTty, 
						sizeof(struct PortTty)) == COPYFAIL) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Set port %d tty\n", PortTty.port);
				if (PortTty.port >= (ushort) RIO_PORTS) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}
				PortP = (p->RIOPortp[PortTty.port]);
#if 0
		 		rio_spin_lock_irqsave(&PortP->portSem, flags);
				PortP->TtyP->tm.c_iflag = PortTty.Tty.tm.c_iflag;
				PortP->TtyP->tm.c_oflag = PortTty.Tty.tm.c_oflag;
				PortP->TtyP->tm.c_cflag = PortTty.Tty.tm.c_cflag;
				PortP->TtyP->tm.c_lflag = PortTty.Tty.tm.c_lflag;
				rio_spin_unlock_irqrestore( &PortP->portSem , flags);
#endif

				RIOParam(PortP, CONFIG, PortP->State & RIO_MODEM, OK_TO_SLEEP);
				return retval;

			case RIO_SET_PORT_PARAMS :
				rio_dprintk (RIO_DEBUG_CTRL, "Set port params\n");
				if ( copyin((int)arg, (caddr_t)&PortParams, sizeof(PortParams))
					== COPYFAIL ) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if (PortParams.Port >= (ushort) RIO_PORTS) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}
				PortP = (p->RIOPortp[PortParams.Port]);
		 		rio_spin_lock_irqsave(&PortP->portSem, flags);
				PortP->Config = PortParams.Config;
				rio_spin_unlock_irqrestore( &PortP->portSem , flags);
				return retval;

			case RIO_GET_PORT_STATS :
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_GET_PORT_STATS\n");
				if ( copyin((int)arg, (caddr_t)&portStats, 
						sizeof(struct portStats)) == COPYFAIL ) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if ( portStats.port >= RIO_PORTS ) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}
				PortP = (p->RIOPortp[portStats.port]);
				portStats.gather = PortP->statsGather;
				portStats.txchars = PortP->txchars;
				portStats.rxchars = PortP->rxchars;
				portStats.opens = PortP->opens;
				portStats.closes = PortP->closes;
				portStats.ioctls = PortP->ioctls;
				if ( copyout((caddr_t)&portStats, (int)arg, 
							sizeof(struct portStats)) == COPYFAIL ) {
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return retval;

			case RIO_RESET_PORT_STATS :
				port = (uint) arg;
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_RESET_PORT_STATS\n");
				if ( port >= RIO_PORTS ) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}
				PortP = (p->RIOPortp[port]);
				rio_spin_lock_irqsave(&PortP->portSem, flags);
				PortP->txchars	= 0;
				PortP->rxchars	= 0;
				PortP->opens	= 0;
				PortP->closes	= 0;
				PortP->ioctls	= 0;
				rio_spin_unlock_irqrestore(&PortP->portSem, flags);
				return retval;

			case RIO_GATHER_PORT_STATS :
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_GATHER_PORT_STATS\n");
				if ( copyin( (int)arg, (caddr_t)&portStats, 
						sizeof(struct portStats)) == COPYFAIL ) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if ( portStats.port >= RIO_PORTS ) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}
				PortP = (p->RIOPortp[portStats.port]);
				rio_spin_lock_irqsave(&PortP->portSem, flags);
				PortP->statsGather = portStats.gather;
				rio_spin_unlock_irqrestore( &PortP->portSem , flags);
				return retval;

#ifdef DEBUG_SUPPORTED
			case RIO_READ_LEVELS:
				{
					 int num;
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_READ_LEVELS\n");
					 for ( num=0; RIODbInf[num].Flag; num++ ) ;
					 rio_dprintk (RIO_DEBUG_CTRL, "%d levels to copy\n",num);
					 if (copyout((caddr_t)RIODbInf,(int)arg,
						sizeof(struct DbInf)*(num+1))==COPYFAIL) {
						rio_dprintk (RIO_DEBUG_CTRL, "ReadLevels Copy failed\n");
						p->RIOError.Error = COPYOUT_FAILED;
						return -EFAULT;
					 }
					 rio_dprintk (RIO_DEBUG_CTRL, "%d levels to copied\n",num);
					 return retval;
				}
#endif

			 case RIO_READ_CONFIG:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_READ_CONFIG\n");
				if (copyout((caddr_t)&p->RIOConf, (int)arg, 
							sizeof(struct Conf)) ==COPYFAIL ) {
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return retval;

			case RIO_SET_CONFIG:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_SET_CONFIG\n");
				if ( !su ) {
					 p->RIOError.Error = NOT_SUPER_USER;
					 return -EPERM;
				}
				if ( copyin((int)arg, (caddr_t)&p->RIOConf, sizeof(struct Conf) )
						==COPYFAIL ) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				/*
				** move a few value around
				*/
				for (Host=0; Host < p->RIONumHosts; Host++)
					 if ( (p->RIOHosts[Host].Flags & RUN_STATE) == RC_RUNNING )
					 	WWORD(p->RIOHosts[Host].ParmMapP->timer , 
								p->RIOConf.Timer);
				return retval;

			case RIO_START_POLLER:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_START_POLLER\n");
				return -EINVAL;

			case RIO_STOP_POLLER:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_STOP_POLLER\n");
				if ( !su ) {
					 p->RIOError.Error = NOT_SUPER_USER;
					 return -EPERM;
				}
				p->RIOPolling = NOT_POLLING;
				return retval;

			case RIO_SETDEBUG:
			case RIO_GETDEBUG:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_SETDEBUG/RIO_GETDEBUG\n");
				if ( copyin( (int)arg, (caddr_t)&DebugCtrl, sizeof(DebugCtrl) )
							==COPYFAIL ) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if ( DebugCtrl.SysPort == NO_PORT ) {
					if ( cmd == RIO_SETDEBUG ) {
						if ( !su ) {
							p->RIOError.Error = NOT_SUPER_USER;
							return -EPERM;
						}
						p->rio_debug = DebugCtrl.Debug;
						p->RIODebugWait = DebugCtrl.Wait;
						rio_dprintk (RIO_DEBUG_CTRL, "Set global debug to 0x%x set wait to 0x%x\n",
							p->rio_debug,p->RIODebugWait);
					}
				 	else {
						rio_dprintk (RIO_DEBUG_CTRL, "Get global debug 0x%x wait 0x%x\n",
										p->rio_debug,p->RIODebugWait);
						DebugCtrl.Debug = p->rio_debug;
						DebugCtrl.Wait  = p->RIODebugWait;
						if ( copyout((caddr_t)&DebugCtrl,(int)arg,
								sizeof(DebugCtrl)) == COPYFAIL ) {
							rio_dprintk (RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n",
									DebugCtrl.SysPort);
						 	p->RIOError.Error = COPYOUT_FAILED;
						 	return -EFAULT;
						}
					}
				}
				else if ( DebugCtrl.SysPort >= RIO_PORTS && 
							DebugCtrl.SysPort != NO_PORT ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n",
									DebugCtrl.SysPort);
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}
				else if ( cmd == RIO_SETDEBUG ) {
					if ( !su ) {
						p->RIOError.Error = NOT_SUPER_USER;
						return -EPERM;
					}
					rio_spin_lock_irqsave(&PortP->portSem, flags);
					p->RIOPortp[DebugCtrl.SysPort]->Debug = DebugCtrl.Debug;
					rio_spin_unlock_irqrestore( &PortP->portSem , flags);
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_SETDEBUG 0x%x\n",
								p->RIOPortp[DebugCtrl.SysPort]->Debug);
				}
				else {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_GETDEBUG 0x%x\n",
									 p->RIOPortp[DebugCtrl.SysPort]->Debug);
					DebugCtrl.Debug = p->RIOPortp[DebugCtrl.SysPort]->Debug;
					if ( copyout((caddr_t)&DebugCtrl,(int)arg,
								sizeof(DebugCtrl))==COPYFAIL ) {
						rio_dprintk (RIO_DEBUG_CTRL, "RIO_GETDEBUG: Bad copy to user space\n");
						p->RIOError.Error = COPYOUT_FAILED;
						return -EFAULT;
					}
				}
				return retval;

			case RIO_VERSID:
				/*
				** Enquire about the release and version.
				** We return MAX_VERSION_LEN bytes, being a
				** textual null terminated string.
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_VERSID\n");
				if ( copyout(	(caddr_t)RIOVersid(),
						(int)arg,
						sizeof(struct rioVersion) ) == COPYFAIL )
				{
					 rio_dprintk (RIO_DEBUG_CTRL,  "RIO_VERSID: Bad copy to user space (host=%d)\n", Host);
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return retval;

			/*
			** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
			** !! commented out previous 'RIO_VERSID' functionality !!
			** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
			**
			case RIO_VERSID:
				**
				** Enquire about the release and version.
				** We return MAX_VERSION_LEN bytes, being a textual null
				** terminated string.
				**
				rio_dprint(RIO_DEBUG_CTRL, ("RIO_VERSID\n"));
				if (copyout((caddr_t)RIOVersid(), 
						(int)arg, MAX_VERSION_LEN ) == COPYFAIL ) {
					 rio_dprint(RIO_DEBUG_CTRL, ("RIO_VERSID: Bad copy to user space\n",Host));
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return retval;
			**
			** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
			*/

			case RIO_NUM_HOSTS:
				/*
				** Enquire as to the number of hosts located
				** at init time.
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_NUM_HOSTS\n");
				if (copyout((caddr_t)&p->RIONumHosts, (int)arg, 
							sizeof(p->RIONumHosts) )==COPYFAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_NUM_HOSTS: Bad copy to user space\n");
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return retval;

			case RIO_HOST_FOAD:
				/*
				** Kill host. This may not be in the final version...
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_FOAD %d\n", (int)arg);
				if ( !su ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_FOAD: Not super user\n");
					 p->RIOError.Error = NOT_SUPER_USER;
					 return -EPERM;
				}
				p->RIOHalted = 1;
				p->RIOSystemUp = 0;

				for ( Host=0; Host<p->RIONumHosts; Host++ ) {
					 (void)RIOBoardTest( p->RIOHosts[Host].PaddrP, 
						p->RIOHosts[Host].Caddr, p->RIOHosts[Host].Type, 
								p->RIOHosts[Host].Slot );
					 bzero( (caddr_t)&p->RIOHosts[Host].Flags, 
							((int)&p->RIOHosts[Host].____end_marker____) -
								 ((int)&p->RIOHosts[Host].Flags) );
					 p->RIOHosts[Host].Flags  = RC_WAITING;
#if 0
					 RIOSetupDataStructs(p);
#endif
				}
				RIOFoadWakeup(p);
				p->RIONumBootPkts = 0;
				p->RIOBooting = 0;

#ifdef RINGBUFFER_SUPPORT
				for( loop=0; loop<RIO_PORTS; loop++ )
					if ( p->RIOPortp[loop]->TxRingBuffer )
						sysfree((void *)p->RIOPortp[loop]->TxRingBuffer, 
							RIOBufferSize );
#endif
#if 0
				bzero((caddr_t)&p->RIOPortp[0],RIO_PORTS*sizeof(struct Port));
#else
				printk ("HEEEEELP!\n");
#endif

				for( loop=0; loop<RIO_PORTS; loop++ ) {
#if 0
					p->RIOPortp[loop]->TtyP = &p->channel[loop];
#endif
					
					spin_lock_init(&p->RIOPortp[loop]->portSem);
					p->RIOPortp[loop]->InUse = NOT_INUSE;
				}

				p->RIOSystemUp = 0;
				return retval;

			case RIO_DOWNLOAD:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_DOWNLOAD\n");
				if ( !su ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Not super user\n");
					 p->RIOError.Error = NOT_SUPER_USER;
					 return -EPERM;
				}
				if ( copyin((int)arg, (caddr_t)&DownLoad, 
							sizeof(DownLoad) )==COPYFAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Copy in from user space failed\n");
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Copied in download code for product code 0x%x\n",
				    DownLoad.ProductCode);

				/*
				** It is important that the product code is an unsigned object!
				*/
				if ( DownLoad.ProductCode > MAX_PRODUCT ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Bad product code %d passed\n",
							DownLoad.ProductCode);
					 p->RIOError.Error = NO_SUCH_PRODUCT;
					 return -ENXIO;
				}
				/*
				** do something!
				*/
				retval = (*(RIOBootTable[DownLoad.ProductCode]))(p, &DownLoad);
										/* <-- Panic */
				p->RIOHalted = 0;
				/*
				** and go back, content with a job well completed.
				*/
				return retval;

			case RIO_PARMS:
				{
					uint host;

					if (copyin((int)arg, (caddr_t)&host, 
							sizeof(host) ) == COPYFAIL ) {
						rio_dprintk (RIO_DEBUG_CTRL, 
							"RIO_HOST_REQ: Copy in from user space failed\n");
						p->RIOError.Error = COPYIN_FAILED;
						return -EFAULT;
					}
					/*
					** Fetch the parmmap
					*/
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_PARMS\n");
					if ( copyout( (caddr_t)p->RIOHosts[host].ParmMapP, 
								(int)arg, sizeof(PARM_MAP) )==COPYFAIL ) {
						p->RIOError.Error = COPYOUT_FAILED;
						rio_dprintk (RIO_DEBUG_CTRL, "RIO_PARMS: Copy out to user space failed\n");
						return -EFAULT;
					}
				}
				return retval;

			case RIO_HOST_REQ:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_REQ\n");
				if (copyin((int)arg, (caddr_t)&HostReq, 
							sizeof(HostReq) )==COPYFAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if ( HostReq.HostNum >= p->RIONumHosts ) {
					 p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_REQ: Illegal host number %d\n",
							HostReq.HostNum);
					 return -ENXIO;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Request for host %d\n", HostReq.HostNum);

				if (copyout((caddr_t)&p->RIOHosts[HostReq.HostNum], 
					(int)HostReq.HostP,sizeof(struct Host) ) == COPYFAIL) {
					p->RIOError.Error = COPYOUT_FAILED;
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_REQ: Bad copy to user space\n");
					return -EFAULT;
				}
				return retval;

			 case RIO_HOST_DPRAM:
				rio_dprintk (RIO_DEBUG_CTRL, "Request for DPRAM\n");
				if ( copyin( (int)arg, (caddr_t)&HostDpRam, 
								sizeof(HostDpRam) )==COPYFAIL ) {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Copy in from user space failed\n");
					p->RIOError.Error = COPYIN_FAILED;
					return -EFAULT;
				}
				if ( HostDpRam.HostNum >= p->RIONumHosts ) {
					p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Illegal host number %d\n",
										HostDpRam.HostNum);
					return -ENXIO;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Request for host %d\n", HostDpRam.HostNum);

				if (p->RIOHosts[HostDpRam.HostNum].Type == RIO_PCI) {
					 int off;
					 /* It's hardware like this that really gets on my tits. */
					 static unsigned char copy[sizeof(struct DpRam)];
					for ( off=0; off<sizeof(struct DpRam); off++ )
						copy[off] = p->RIOHosts[HostDpRam.HostNum].Caddr[off];
					if ( copyout( (caddr_t)copy, (int)HostDpRam.DpRamP, 
							sizeof(struct DpRam) ) == COPYFAIL ) {
						p->RIOError.Error = COPYOUT_FAILED;
						rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
						return -EFAULT;
					}
				}
				else if (copyout((caddr_t)p->RIOHosts[HostDpRam.HostNum].Caddr,
					(int)HostDpRam.DpRamP, 
						sizeof(struct DpRam) ) == COPYFAIL ) {
					 p->RIOError.Error = COPYOUT_FAILED;
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
					 return -EFAULT;
				}
				return retval;

			 case RIO_SET_BUSY:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_SET_BUSY\n");
				if ( (int)arg < 0 || (int)arg > 511 ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_SET_BUSY: Bad port number %d\n",(int)arg);
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}
				rio_spin_lock_irqsave(&PortP->portSem, flags);
				p->RIOPortp[(int)arg]->State |= RIO_BUSY;
				rio_spin_unlock_irqrestore( &PortP->portSem , flags);
				return retval;

			 case RIO_HOST_PORT:
				/*
				** The daemon want port information
				** (probably for debug reasons)
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_PORT\n");
				if ( copyin((int)arg, (caddr_t)&PortReq, 
					sizeof(PortReq) )==COPYFAIL ) {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_PORT: Copy in from user space failed\n");
					p->RIOError.Error = COPYIN_FAILED;
					return -EFAULT;
				}

				if (PortReq.SysPort >= RIO_PORTS) { /* SysPort is unsigned */
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_PORT: Illegal port number %d\n",
											PortReq.SysPort);
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Request for port %d\n", PortReq.SysPort);
				if (copyout((caddr_t)p->RIOPortp[PortReq.SysPort], 
							 (int)PortReq.PortP,
								sizeof(struct Port) ) == COPYFAIL) {
					 p->RIOError.Error = COPYOUT_FAILED;
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_PORT: Bad copy to user space\n");
					 return -EFAULT;
				}
				return retval;

			case RIO_HOST_RUP:
				/*
				** The daemon want rup information
				** (probably for debug reasons)
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_RUP\n");
				if (copyin((int)arg, (caddr_t)&RupReq, 
						sizeof(RupReq) )==COPYFAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_RUP: Copy in from user space failed\n");
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if (RupReq.HostNum >= p->RIONumHosts) { /* host is unsigned */
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_RUP: Illegal host number %d\n",
								RupReq.HostNum);
					 p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}
				if ( RupReq.RupNum >= MAX_RUP+LINKS_PER_UNIT ) { /* eek! */
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_RUP: Illegal rup number %d\n",
							RupReq.RupNum);
					 p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}
				HostP = &p->RIOHosts[RupReq.HostNum];

				if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_RUP: Host %d not running\n",
							RupReq.HostNum);
					 p->RIOError.Error = HOST_NOT_RUNNING;
					 return -EIO;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Request for rup %d from host %d\n",
						RupReq.RupNum,RupReq.HostNum);

				if (copyout((caddr_t)HostP->UnixRups[RupReq.RupNum].RupP,
					(int)RupReq.RupP,sizeof(struct RUP) ) == COPYFAIL) {
					p->RIOError.Error = COPYOUT_FAILED;
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_RUP: Bad copy to user space\n");
					return -EFAULT;
				}
				return retval;

			case RIO_HOST_LPB:
				/*
				** The daemon want lpb information
				** (probably for debug reasons)
				*/
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_LPB\n");
				if (copyin((int)arg, (caddr_t)&LpbReq, 
					sizeof(LpbReq) )==COPYFAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy from user space\n");
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if (LpbReq.Host >= p->RIONumHosts) { /* host is unsigned */
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_LPB: Illegal host number %d\n",
							LpbReq.Host);
					p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
					return -ENXIO;
				}
				if ( LpbReq.Link >= LINKS_PER_UNIT ) { /* eek! */
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_LPB: Illegal link number %d\n",
							LpbReq.Link);
					 p->RIOError.Error = LINK_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}
				HostP = &p->RIOHosts[LpbReq.Host];

				if ( (HostP->Flags & RUN_STATE) != RC_RUNNING ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_LPB: Host %d not running\n",
						LpbReq.Host );
					 p->RIOError.Error = HOST_NOT_RUNNING;
					 return -EIO;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Request for lpb %d from host %d\n",
					LpbReq.Link, LpbReq.Host);

				if (copyout((caddr_t)&HostP->LinkStrP[LpbReq.Link],
					(int)LpbReq.LpbP,sizeof(struct LPB) ) == COPYFAIL) {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy to user space\n");
					p->RIOError.Error = COPYOUT_FAILED;
					return -EFAULT;
				}
				return retval;

				/*
				** Here 3 IOCTL's that allow us to change the way in which
				** rio logs errors. send them just to syslog or send them
				** to both syslog and console or send them to just the console.
				**
				** See RioStrBuf() in util.c for the other half.
				*/
			case RIO_SYSLOG_ONLY:
				p->RIOPrintLogState = PRINT_TO_LOG;	/* Just syslog */
				return 0;

			case RIO_SYSLOG_CONS:
				p->RIOPrintLogState = PRINT_TO_LOG_CONS;/* syslog and console */
				return 0;

			case RIO_CONS_ONLY:
				p->RIOPrintLogState = PRINT_TO_CONS;	/* Just console */
				return 0;

			case RIO_SIGNALS_ON:
				if ( p->RIOSignalProcess ) {
					 p->RIOError.Error = SIGNALS_ALREADY_SET;
					 return -EBUSY;
				}
				p->RIOSignalProcess = getpid();
				p->RIOPrintDisabled = DONT_PRINT;
				return retval;

			case RIO_SIGNALS_OFF:
				if ( p->RIOSignalProcess != getpid() ) {
					 p->RIOError.Error = NOT_RECEIVING_PROCESS;
					 return -EPERM;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "Clear signal process to zero\n");
				p->RIOSignalProcess = 0;
				return retval;

			case RIO_SET_BYTE_MODE:
				for ( Host=0; Host<p->RIONumHosts; Host++ )
					 if ( p->RIOHosts[Host].Type == RIO_AT )
						 p->RIOHosts[Host].Mode &= ~WORD_OPERATION;
				return retval;

			case RIO_SET_WORD_MODE:
				for ( Host=0; Host<p->RIONumHosts; Host++ )
					 if ( p->RIOHosts[Host].Type == RIO_AT )
						 p->RIOHosts[Host].Mode |= WORD_OPERATION;
				return retval;

			case RIO_SET_FAST_BUS:
				for ( Host=0; Host<p->RIONumHosts; Host++ )
					 if ( p->RIOHosts[Host].Type == RIO_AT )
						 p->RIOHosts[Host].Mode |= FAST_AT_BUS;
				return retval;

			case RIO_SET_SLOW_BUS:
				for ( Host=0; Host<p->RIONumHosts; Host++ )
					 if ( p->RIOHosts[Host].Type == RIO_AT )
						 p->RIOHosts[Host].Mode &= ~FAST_AT_BUS;
				return retval;

			case RIO_MAP_B50_TO_50:
			case RIO_MAP_B50_TO_57600:
			case RIO_MAP_B110_TO_110:
			case RIO_MAP_B110_TO_115200:
				rio_dprintk (RIO_DEBUG_CTRL, "Baud rate mapping\n");
				port = (uint) arg;
				if ( port < 0 || port > 511 ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", port);
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}
				rio_spin_lock_irqsave(&PortP->portSem, flags);
				switch( cmd )
				{
					case RIO_MAP_B50_TO_50 :
						p->RIOPortp[port]->Config |= RIO_MAP_50_TO_50;
						break;
					case RIO_MAP_B50_TO_57600 :
						p->RIOPortp[port]->Config &= ~RIO_MAP_50_TO_50;
						break;
					case RIO_MAP_B110_TO_110 :
						p->RIOPortp[port]->Config |= RIO_MAP_110_TO_110;
						break;
					case RIO_MAP_B110_TO_115200 :
						p->RIOPortp[port]->Config &= ~RIO_MAP_110_TO_110;
						break;
				}
				rio_spin_unlock_irqrestore( &PortP->portSem , flags);
				return retval;

			case RIO_STREAM_INFO:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_STREAM_INFO\n");
				return -EINVAL;

			case RIO_SEND_PACKET:
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_SEND_PACKET\n");
				if ( copyin( (int)arg, (caddr_t)&SendPack,
									sizeof(SendPack) )==COPYFAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_SEND_PACKET: Bad copy from user space\n");
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				if ( SendPack.PortNum >= 128 ) {
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -ENXIO;
				}

				PortP = p->RIOPortp[SendPack.PortNum];
				rio_spin_lock_irqsave(&PortP->portSem, flags);

				if ( !can_add_transmit(&PacketP,PortP) ) {
					 p->RIOError.Error = UNIT_IS_IN_USE;
					 rio_spin_unlock_irqrestore( &PortP->portSem , flags);
					 return -ENOSPC;
				}

				for ( loop=0; loop<(ushort)(SendPack.Len & 127); loop++ )
					 WBYTE(PacketP->data[loop], SendPack.Data[loop] );

				WBYTE(PacketP->len, SendPack.Len);

				add_transmit( PortP );
				/*
				** Count characters transmitted for port statistics reporting
				*/
				if (PortP->statsGather)
					 PortP->txchars += (SendPack.Len & 127);
				rio_spin_unlock_irqrestore( &PortP->portSem , flags);
				return retval;

			case RIO_NO_MESG:
				if ( su )
					 p->RIONoMessage = 1;
				return su ? 0 : -EPERM;

			case RIO_MESG:
				if ( su )
					p->RIONoMessage = 0;
				return su ? 0 : -EPERM;

			case RIO_WHAT_MESG:
				if ( copyout( (caddr_t)&p->RIONoMessage, (int)arg, 
					sizeof(p->RIONoMessage) )==COPYFAIL ) {
					rio_dprintk (RIO_DEBUG_CTRL, "RIO_WHAT_MESG: Bad copy to user space\n");
					p->RIOError.Error = COPYOUT_FAILED;
					return -EFAULT;
				}
				return 0;

			case RIO_MEM_DUMP :
				if (copyin((int)arg, (caddr_t)&SubCmd, 
						sizeof(struct SubCmdStruct)) == COPYFAIL) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_MEM_DUMP host %d rup %d addr %x\n", 
						SubCmd.Host, SubCmd.Rup, SubCmd.Addr);

				if (SubCmd.Rup >= MAX_RUP+LINKS_PER_UNIT ) {
					 p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}

				if (SubCmd.Host >= p->RIONumHosts ) {
					 p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}

				port = p->RIOHosts[SubCmd.Host].
								UnixRups[SubCmd.Rup].BaseSysPort;

				PortP = p->RIOPortp[port];

				rio_spin_lock_irqsave(&PortP->portSem, flags);

				if ( RIOPreemptiveCmd(p,  PortP, MEMDUMP ) == RIO_FAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_MEM_DUMP failed\n");
					 rio_spin_unlock_irqrestore( &PortP->portSem , flags);
					 return -EBUSY;
				}
				else
					 PortP->State |= RIO_BUSY;

				rio_spin_unlock_irqrestore( &PortP->portSem , flags);
				if ( copyout( (caddr_t)p->RIOMemDump, (int)arg, 
							MEMDUMP_SIZE) == COPYFAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_MEM_DUMP copy failed\n");
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return 0;

			case RIO_TICK:
				if ((int)arg < 0 || (int)arg >= p->RIONumHosts)
					 return -EINVAL;
				rio_dprintk (RIO_DEBUG_CTRL, "Set interrupt for host %d\n", (int)arg);
				WBYTE(p->RIOHosts[(int)arg].SetInt , 0xff);
				return 0;

			case RIO_TOCK:
				if ((int)arg < 0 || (int)arg >= p->RIONumHosts)
					 return -EINVAL;
				rio_dprintk (RIO_DEBUG_CTRL, "Clear interrupt for host %d\n", (int)arg);
				WBYTE((p->RIOHosts[(int)arg].ResetInt) , 0xff);
				return 0;

			case RIO_READ_CHECK:
				/* Check reads for pkts with data[0] the same */
				p->RIOReadCheck = !p->RIOReadCheck;
				if (copyout((caddr_t)&p->RIOReadCheck,(int)arg,
							sizeof(uint))== COPYFAIL) {
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return 0;

			case RIO_READ_REGISTER :
				if (copyin((int)arg, (caddr_t)&SubCmd, 
							sizeof(struct SubCmdStruct)) == COPYFAIL) {
					 p->RIOError.Error = COPYIN_FAILED;
					 return -EFAULT;
				}
				rio_dprintk (RIO_DEBUG_CTRL, "RIO_READ_REGISTER host %d rup %d port %d reg %x\n", 
						SubCmd.Host, SubCmd.Rup, SubCmd.Port, SubCmd.Addr);

				if (SubCmd.Port > 511) {
					 rio_dprintk (RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", 
								SubCmd.Port);
					 p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}

				if (SubCmd.Rup >= MAX_RUP+LINKS_PER_UNIT ) {
					 p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}

				if (SubCmd.Host >= p->RIONumHosts ) {
					 p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
					 return -EINVAL;
				}

				port = p->RIOHosts[SubCmd.Host].
						UnixRups[SubCmd.Rup].BaseSysPort + SubCmd.Port;
				PortP = p->RIOPortp[port];

				rio_spin_lock_irqsave(&PortP->portSem, flags);

				if (RIOPreemptiveCmd(p, PortP, READ_REGISTER) == RIO_FAIL) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_READ_REGISTER failed\n");
					 rio_spin_unlock_irqrestore( &PortP->portSem , flags);
					 return -EBUSY;
				}
				else
					 PortP->State |= RIO_BUSY;

				rio_spin_unlock_irqrestore( &PortP->portSem , flags);
				if (copyout((caddr_t)&p->CdRegister, (int)arg, 
							sizeof(uint)) == COPYFAIL ) {
					 rio_dprintk (RIO_DEBUG_CTRL, "RIO_READ_REGISTER copy failed\n");
					 p->RIOError.Error = COPYOUT_FAILED;
					 return -EFAULT;
				}
				return 0;
				/*
				** rio_make_dev: given port number (0-511) ORed with port type
				** (RIO_DEV_DIRECT, RIO_DEV_MODEM, RIO_DEV_XPRINT) return dev_t
				** value to pass to mknod to create the correct device node.
				*/
			case RIO_MAKE_DEV:
				{
					uint port = (uint)arg & RIO_MODEM_MASK;

					switch ( (uint)arg & RIO_DEV_MASK ) {
						case RIO_DEV_DIRECT:
							arg = (caddr_t)drv_makedev(MAJOR(dev), port);
							rio_dprintk (RIO_DEBUG_CTRL, "Makedev direct 0x%x is 0x%x\n",port, (int)arg);
							return (int)arg;
					 	case RIO_DEV_MODEM:
							arg =  (caddr_t)drv_makedev(MAJOR(dev), (port|RIO_MODEM_BIT) );
							rio_dprintk (RIO_DEBUG_CTRL, "Makedev modem 0x%x is 0x%x\n",port, (int)arg);
							return (int)arg;
						case RIO_DEV_XPRINT:
							arg = (caddr_t)drv_makedev(MAJOR(dev), port);
							rio_dprintk (RIO_DEBUG_CTRL, "Makedev printer 0x%x is 0x%x\n",port, (int)arg);
							return (int)arg;
					}
					rio_dprintk (RIO_DEBUG_CTRL, "MAKE Device is called\n");
					return -EINVAL;
				}
				/*
				** rio_minor: given a dev_t from a stat() call, return
				** the port number (0-511) ORed with the port type
				** ( RIO_DEV_DIRECT, RIO_DEV_MODEM, RIO_DEV_XPRINT )
				*/
			case RIO_MINOR:
				{
					dev_t dv;
					int mino;

					dv = (dev_t)((int)arg);
					mino = RIO_UNMODEM(dv);

					if ( RIO_ISMODEM(dv) ) {
						rio_dprintk (RIO_DEBUG_CTRL, "Minor for device 0x%x: modem %d\n", dv, mino);
						arg = (caddr_t)(mino | RIO_DEV_MODEM);
					}
					else {
						rio_dprintk (RIO_DEBUG_CTRL, "Minor for device 0x%x: direct %d\n", dv, mino);
						arg = (caddr_t)(mino | RIO_DEV_DIRECT);
					}
					return (int)arg;
				}
	}
	rio_dprintk (RIO_DEBUG_CTRL, "INVALID DAEMON IOCTL 0x%x\n",cmd);
	p->RIOError.Error = IOCTL_COMMAND_UNKNOWN;

	func_exit ();
	return -EINVAL;
}

/*
** Pre-emptive commands go on RUPs and are only one byte long.
*/
int
RIOPreemptiveCmd(p, PortP, Cmd)
struct rio_info *	p;
struct Port *PortP;
uchar Cmd;
{
	struct CmdBlk *CmdBlkP;
	struct PktCmd_M *PktCmdP;
	int Ret;
	ushort rup;
	int port;

#ifdef CHECK
	CheckPortP( PortP );
#endif

	if ( PortP->State & RIO_DELETED ) {
		rio_dprintk (RIO_DEBUG_CTRL, "Preemptive command to deleted RTA ignored\n");
		return RIO_FAIL;
	}

	if (((int)((char)PortP->InUse) == -1) || ! (CmdBlkP = RIOGetCmdBlk()) ) {
		rio_dprintk (RIO_DEBUG_CTRL, "Cannot allocate command block for command %d on port %d\n",
		       Cmd, PortP->PortNum);
		return RIO_FAIL;
	}

	rio_dprintk (RIO_DEBUG_CTRL, "Command blk 0x%x - InUse now %d\n", 
	       (int)CmdBlkP,PortP->InUse);

	PktCmdP = (struct PktCmd_M *)&CmdBlkP->Packet.data[0];

	CmdBlkP->Packet.src_unit  = 0;
	if (PortP->SecondBlock)
		rup = PortP->ID2;
	else
		rup = PortP->RupNum;
	CmdBlkP->Packet.dest_unit = rup;
	CmdBlkP->Packet.src_port  = COMMAND_RUP;
	CmdBlkP->Packet.dest_port = COMMAND_RUP;
	CmdBlkP->Packet.len	  = PKT_CMD_BIT | 2;
	CmdBlkP->PostFuncP	= RIOUnUse;
	CmdBlkP->PostArg	= (int)PortP;
	PktCmdP->Command	= Cmd;
	port				= PortP->HostPort % (ushort)PORTS_PER_RTA;
	/*
	** Index ports 8-15 for 2nd block of 16 port RTA.
	*/
	if (PortP->SecondBlock)
		port += (ushort) PORTS_PER_RTA;
	PktCmdP->PhbNum	   = port;

	switch ( Cmd ) {
		case MEMDUMP:
			rio_dprintk (RIO_DEBUG_CTRL, "Queue MEMDUMP command blk 0x%x (addr 0x%x)\n",
			       (int)CmdBlkP, (int)SubCmd.Addr);
			PktCmdP->SubCommand		= MEMDUMP;
			PktCmdP->SubAddr		= SubCmd.Addr;
			break;
		case FCLOSE:
			rio_dprintk (RIO_DEBUG_CTRL, "Queue FCLOSE command blk 0x%x\n",(int)CmdBlkP);
			break;
		case READ_REGISTER:
			rio_dprintk (RIO_DEBUG_CTRL, "Queue READ_REGISTER (0x%x) command blk 0x%x\n",
		 		(int)SubCmd.Addr, (int)CmdBlkP);
			PktCmdP->SubCommand		= READ_REGISTER;
			PktCmdP->SubAddr		= SubCmd.Addr;
			break;
		case RESUME:
			rio_dprintk (RIO_DEBUG_CTRL, "Queue RESUME command blk 0x%x\n",(int)CmdBlkP);
			break;
		case RFLUSH:
			rio_dprintk (RIO_DEBUG_CTRL, "Queue RFLUSH command blk 0x%x\n",(int)CmdBlkP);
			CmdBlkP->PostFuncP = RIORFlushEnable;
			break;
		case SUSPEND:
			rio_dprintk (RIO_DEBUG_CTRL, "Queue SUSPEND command blk 0x%x\n",(int)CmdBlkP);
			break;

		case MGET :
			rio_dprintk (RIO_DEBUG_CTRL, "Queue MGET command blk 0x%x\n", (int)CmdBlkP);
			break;

		case MSET :
		case MBIC :
		case MBIS :
			CmdBlkP->Packet.data[4] = (char) PortP->ModemLines;
			rio_dprintk (RIO_DEBUG_CTRL, "Queue MSET/MBIC/MBIS command blk 0x%x\n", (int)CmdBlkP);
			break;

		case WFLUSH:
			/*
			** If we have queued up the maximum number of Write flushes
			** allowed then we should not bother sending any more to the
			** RTA.
			*/
			if ((int)((char)PortP->WflushFlag) == (int)-1) {
				rio_dprintk (RIO_DEBUG_CTRL, "Trashed WFLUSH, WflushFlag about to wrap!");
				RIOFreeCmdBlk(CmdBlkP);
				return(RIO_FAIL);
			} else {
				rio_dprintk (RIO_DEBUG_CTRL, "Queue WFLUSH command blk 0x%x\n",
				       (int)CmdBlkP);
				CmdBlkP->PostFuncP = RIOWFlushMark;
			}
			break;
	}

	PortP->InUse++;

	Ret = RIOQueueCmdBlk( PortP->HostP, rup, CmdBlkP );

	return Ret;
}