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/*
** -----------------------------------------------------------------------------
**
**  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


#define __NO_VERSION__
#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/compatmac.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))

#ifdef linux
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 < 0) return COPYFAIL;
  else return rv;
}


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 < 0) return COPYFAIL;
  else return rv;
}

#else

int
copyin(arg, dp, siz)
int arg;
caddr_t dp;
int siz; 
{
    if (rbounds ((unsigned long) arg) >= siz) {
        bcopy ( arg, dp, siz );
        return OK;
    } else
        return ( COPYFAIL );
}

int
copyout (dp, arg, siz)
caddr_t dp;
int arg;
int siz;
{
    if (wbounds ((unsigned long) arg) >=  siz ) {
        bcopy ( dp, arg, siz );
        return OK;
    } else
        return ( COPYFAIL );
}
#endif

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 teh 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 1;
                    }
                    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
                    
                    p->RIOPortp[loop]->portSem = SPIN_LOCK_UNLOCKED;
                    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;
}

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