drivers/char/rio/rioctrl.c

   1 /*
   2 ** -----------------------------------------------------------------------------
   3 **
   4 **  Perle Specialix driver for Linux
   5 **  Ported from existing RIO Driver for SCO sources.
   6  *
   7  *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
   8  *
   9  *      This program is free software; you can redistribute it and/or modify
  10  *      it under the terms of the GNU General Public License as published by
  11  *      the Free Software Foundation; either version 2 of the License, or
  12  *      (at your option) any later version.
  13  *
  14  *      This program is distributed in the hope that it will be useful,
  15  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *      GNU General Public License for more details.
  18  *
  19  *      You should have received a copy of the GNU General Public License
  20  *      along with this program; if not, write to the Free Software
  21  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 **
  23 **      Module          : rioctrl.c
  24 **      SID             : 1.3
  25 **      Last Modified   : 11/6/98 10:33:42
  26 **      Retrieved       : 11/6/98 10:33:49
  27 **
  28 **  ident @(#)rioctrl.c 1.3
  29 **
  30 ** -----------------------------------------------------------------------------
  31 */
  32 #ifdef SCCS_LABELS
  33 static char *_rioctrl_c_sccs_ = "@(#)rioctrl.c  1.3";
  34 #endif
  35
  36
  37 #include <linux/module.h>
  38 #include <linux/slab.h>
  39 #include <linux/errno.h>
  40 #include <asm/io.h>
  41 #include <asm/system.h>
  42 #include <asm/string.h>
  43 #include <asm/semaphore.h>
  44 #include <asm/uaccess.h>
  45
  46 #include <linux/termios.h>
  47 #include <linux/serial.h>
  48
  49 #include <linux/generic_serial.h>
  50
  51
  52 #include "linux_compat.h"
  53 #include "rio_linux.h"
  54 #include "pkt.h"
  55 #include "daemon.h"
  56 #include "rio.h"
  57 #include "riospace.h"
  58 #include "cmdpkt.h"
  59 #include "map.h"
  60 #include "rup.h"
  61 #include "port.h"
  62 #include "riodrvr.h"
  63 #include "rioinfo.h"
  64 #include "func.h"
  65 #include "errors.h"
  66 #include "pci.h"
  67
  68 #include "parmmap.h"
  69 #include "unixrup.h"
  70 #include "board.h"
  71 #include "host.h"
  72 #include "phb.h"
  73 #include "link.h"
  74 #include "cmdblk.h"
  75 #include "route.h"
  76 #include "cirrus.h"
  77 #include "rioioctl.h"
  78
  79
  80 static struct LpbReq LpbReq;
  81 static struct RupReq RupReq;
  82 static struct PortReq PortReq;
  83 static struct HostReq HostReq;  /* oh really?  global?  and no locking? */
  84 static struct HostDpRam HostDpRam;
  85 static struct DebugCtrl DebugCtrl;
  86 static struct Map MapEnt;
  87 static struct PortSetup PortSetup;
  88 static struct DownLoad DownLoad;
  89 static struct SendPack SendPack;
  90 /* static struct StreamInfo     StreamInfo; */
  91 /* static char modemtable[RIO_PORTS]; */
  92 static struct SpecialRupCmd SpecialRupCmd;
  93 static struct PortParams PortParams;
  94 static struct portStats portStats;
  95
  96 static struct SubCmdStruct {
  97         ushort Host;
  98         ushort Rup;
  99         ushort Port;
 100         ushort Addr;
 101 } SubCmd;
 102
 103 struct PortTty {
 104         uint port;
 105         struct ttystatics Tty;
 106 };
 107
 108 static struct PortTty PortTty;
 109 typedef struct ttystatics TERMIO;
 110
 111 /*
 112 ** This table is used when the config.rio downloads bin code to the
 113 ** driver. We index the table using the product code, 0-F, and call
 114 ** the function pointed to by the entry, passing the information
 115 ** about the boot.
 116 ** The RIOBootCodeUNKNOWN entry is there to politely tell the calling
 117 ** process to bog off.
 118 */
 119 static int
 120  (*RIOBootTable[MAX_PRODUCT]) (struct rio_info *, struct DownLoad *) = {
 121                                         /* 0 */ RIOBootCodeHOST,
 122                                         /* Host Card */
 123                                         /* 1 */ RIOBootCodeRTA,
 124                                         /* RTA */
 125 };
 126
 127 #define drv_makedev(maj, min) ((((uint) maj & 0xff) << 8) | ((uint) min & 0xff))
 128
 129 static int copy_from_io(void __user *to, void __iomem *from, size_t size)
 130 {
 131         void *buf = kmalloc(size, GFP_KERNEL);
 132         int res = -ENOMEM;
 133         if (buf) {
 134                 rio_memcpy_fromio(buf, from, size);
 135                 res = copy_to_user(to, buf, size);
 136                 kfree(buf);
 137         }
 138         return res;
 139 }
 140
 141 int riocontrol(struct rio_info *p, dev_t dev, int cmd, unsigned long arg, int su)
 142 {
 143         uint Host;              /* leave me unsigned! */
 144         uint port;              /* and me! */
 145         struct Host *HostP;
 146         ushort loop;
 147         int Entry;
 148         struct Port *PortP;
 149         struct PKT __iomem *PacketP;
 150         int retval = 0;
 151         unsigned long flags;
 152         void __user *argp = (void __user *)arg;
 153
 154         func_enter();
 155
 156         /* Confuse the compiler to think that we've initialized these */
 157         Host = 0;
 158         PortP = NULL;
 159
 160         rio_dprintk(RIO_DEBUG_CTRL, "control ioctl cmd: 0x%x arg: %p\n", cmd, argp);
 161
 162         switch (cmd) {
 163                 /*
 164                  ** RIO_SET_TIMER
 165                  **
 166                  ** Change the value of the host card interrupt timer.
 167                  ** If the host card number is -1 then all host cards are changed
 168                  ** otherwise just the specified host card will be changed.
 169                  */
 170         case RIO_SET_TIMER:
 171                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_TIMER to %ldms\n", arg);
 172                 {
 173                         int host, value;
 174                         host = (arg >> 16) & 0x0000FFFF;
 175                         value = arg & 0x0000ffff;
 176                         if (host == -1) {
 177                                 for (host = 0; host < p->RIONumHosts; host++) {
 178                                         if (p->RIOHosts[host].Flags == RC_RUNNING) {
 179                                                 writew(value, &p->RIOHosts[host].ParmMapP->timer);
 180                                         }
 181                                 }
 182                         } else if (host >= p->RIONumHosts) {
 183                                 return -EINVAL;
 184                         } else {
 185                                 if (p->RIOHosts[host].Flags == RC_RUNNING) {
 186                                         writew(value, &p->RIOHosts[host].ParmMapP->timer);
 187                                 }
 188                         }
 189                 }
 190                 return 0;
 191
 192         case RIO_FOAD_RTA:
 193                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_FOAD_RTA\n");
 194                 return RIOCommandRta(p, arg, RIOFoadRta);
 195
 196         case RIO_ZOMBIE_RTA:
 197                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_ZOMBIE_RTA\n");
 198                 return RIOCommandRta(p, arg, RIOZombieRta);
 199
 200         case RIO_IDENTIFY_RTA:
 201                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_IDENTIFY_RTA\n");
 202                 return RIOIdentifyRta(p, argp);
 203
 204         case RIO_KILL_NEIGHBOUR:
 205                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_KILL_NEIGHBOUR\n");
 206                 return RIOKillNeighbour(p, argp);
 207
 208         case SPECIAL_RUP_CMD:
 209                 {
 210                         struct CmdBlk *CmdBlkP;
 211
 212                         rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD\n");
 213                         if (copy_from_user(&SpecialRupCmd, argp, sizeof(SpecialRupCmd))) {
 214                                 rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD copy failed\n");
 215                                 p->RIOError.Error = COPYIN_FAILED;
 216                                 return -EFAULT;
 217                         }
 218                         CmdBlkP = RIOGetCmdBlk();
 219                         if (!CmdBlkP) {
 220                                 rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD GetCmdBlk failed\n");
 221                                 return -ENXIO;
 222                         }
 223                         CmdBlkP->Packet = SpecialRupCmd.Packet;
 224                         if (SpecialRupCmd.Host >= p->RIONumHosts)
 225                                 SpecialRupCmd.Host = 0;
 226                         rio_dprintk(RIO_DEBUG_CTRL, "Queue special rup command for host %d rup %d\n", SpecialRupCmd.Host, SpecialRupCmd.RupNum);
 227                         if (RIOQueueCmdBlk(&p->RIOHosts[SpecialRupCmd.Host], SpecialRupCmd.RupNum, CmdBlkP) == RIO_FAIL) {
 228                                 printk(KERN_WARNING "rio: FAILED TO QUEUE SPECIAL RUP COMMAND\n");
 229                         }
 230                         return 0;
 231                 }
 232
 233         case RIO_DEBUG_MEM:
 234                 return -EPERM;
 235
 236         case RIO_ALL_MODEM:
 237                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_ALL_MODEM\n");
 238                 p->RIOError.Error = IOCTL_COMMAND_UNKNOWN;
 239                 return -EINVAL;
 240
 241         case RIO_GET_TABLE:
 242                 /*
 243                  ** Read the routing table from the device driver to user space
 244                  */
 245                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_TABLE\n");
 246
 247                 if ((retval = RIOApel(p)) != 0)
 248                         return retval;
 249
 250                 if (copy_to_user(argp, p->RIOConnectTable, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
 251                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_TABLE copy failed\n");
 252                         p->RIOError.Error = COPYOUT_FAILED;
 253                         return -EFAULT;
 254                 }
 255
 256                 {
 257                         int entry;
 258                         rio_dprintk(RIO_DEBUG_CTRL, "*****\nMAP ENTRIES\n");
 259                         for (entry = 0; entry < TOTAL_MAP_ENTRIES; entry++) {
 260                                 if ((p->RIOConnectTable[entry].ID == 0) && (p->RIOConnectTable[entry].HostUniqueNum == 0) && (p->RIOConnectTable[entry].RtaUniqueNum == 0))
 261                                         continue;
 262
 263                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.HostUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].HostUniqueNum);
 264                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.RtaUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].RtaUniqueNum);
 265                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.ID = 0x%x\n", entry, p->RIOConnectTable[entry].ID);
 266                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.ID2 = 0x%x\n", entry, p->RIOConnectTable[entry].ID2);
 267                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Flags = 0x%x\n", entry, (int) p->RIOConnectTable[entry].Flags);
 268                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.SysPort = 0x%x\n", entry, (int) p->RIOConnectTable[entry].SysPort);
 269                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[0].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[0].Unit);
 270                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[0].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[0].Link);
 271                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[1].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[1].Unit);
 272                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[1].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[1].Link);
 273                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[2].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[2].Unit);
 274                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[2].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[2].Link);
 275                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[3].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[3].Unit);
 276                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[4].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[3].Link);
 277                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Name = %s\n", entry, p->RIOConnectTable[entry].Name);
 278                         }
 279                         rio_dprintk(RIO_DEBUG_CTRL, "*****\nEND MAP ENTRIES\n");
 280                 }
 281                 p->RIOQuickCheck = NOT_CHANGED; /* a table has been gotten */
 282                 return 0;
 283
 284         case RIO_PUT_TABLE:
 285                 /*
 286                  ** Write the routing table to the device driver from user space
 287                  */
 288                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE\n");
 289
 290                 if (!su) {
 291                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE !Root\n");
 292                         p->RIOError.Error = NOT_SUPER_USER;
 293                         return -EPERM;
 294                 }
 295                 if (copy_from_user(&p->RIOConnectTable[0], argp, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
 296                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE copy failed\n");
 297                         p->RIOError.Error = COPYIN_FAILED;
 298                         return -EFAULT;
 299                 }
 300 /*
 301 ***********************************
 302                                 {
 303                                         int entry;
 304                                         rio_dprint(RIO_DEBUG_CTRL,  ("*****\nMAP ENTRIES\n") );
 305                                         for ( entry=0; entry<TOTAL_MAP_ENTRIES; entry++ )
 306                                         {
 307                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.HostUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].HostUniqueNum ) );
 308                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.RtaUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].RtaUniqueNum ) );
 309                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.ID = 0x%x\n", entry, p->RIOConnectTable[entry].ID ) );
 310                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.ID2 = 0x%x\n", entry, p->RIOConnectTable[entry].ID2 ) );
 311                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Flags = 0x%x\n", entry, p->RIOConnectTable[entry].Flags ) );
 312                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.SysPort = 0x%x\n", entry, p->RIOConnectTable[entry].SysPort ) );
 313                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[0].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[0].Unit ) );
 314                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[0].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[0].Link ) );
 315                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[1].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[1].Unit ) );
 316                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[1].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[1].Link ) );
 317                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[2].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[2].Unit ) );
 318                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[2].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[2].Link ) );
 319                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[3].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[3].Unit ) );
 320                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[4].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[3].Link ) );
 321                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Name = %s\n", entry, p->RIOConnectTable[entry].Name ) );
 322                                         }
 323                                         rio_dprint(RIO_DEBUG_CTRL,  ("*****\nEND MAP ENTRIES\n") );
 324                                 }
 325 ***********************************
 326 */
 327                 return RIONewTable(p);
 328
 329         case RIO_GET_BINDINGS:
 330                 /*
 331                  ** Send bindings table, containing unique numbers of RTAs owned
 332                  ** by this system to user space
 333                  */
 334                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS\n");
 335
 336                 if (!su) {
 337                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS !Root\n");
 338                         p->RIOError.Error = NOT_SUPER_USER;
 339                         return -EPERM;
 340                 }
 341                 if (copy_to_user(argp, p->RIOBindTab, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
 342                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS copy failed\n");
 343                         p->RIOError.Error = COPYOUT_FAILED;
 344                         return -EFAULT;
 345                 }
 346                 return 0;
 347
 348         case RIO_PUT_BINDINGS:
 349                 /*
 350                  ** Receive a bindings table, containing unique numbers of RTAs owned
 351                  ** by this system
 352                  */
 353                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS\n");
 354
 355                 if (!su) {
 356                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS !Root\n");
 357                         p->RIOError.Error = NOT_SUPER_USER;
 358                         return -EPERM;
 359                 }
 360                 if (copy_from_user(&p->RIOBindTab[0], argp, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
 361                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS copy failed\n");
 362                         p->RIOError.Error = COPYIN_FAILED;
 363                         return -EFAULT;
 364                 }
 365                 return 0;
 366
 367         case RIO_BIND_RTA:
 368                 {
 369                         int EmptySlot = -1;
 370                         /*
 371                          ** Bind this RTA to host, so that it will be booted by
 372                          ** host in 'boot owned RTAs' mode.
 373                          */
 374                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_BIND_RTA\n");
 375
 376                         if (!su) {
 377                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_BIND_RTA !Root\n");
 378                                 p->RIOError.Error = NOT_SUPER_USER;
 379                                 return -EPERM;
 380                         }
 381                         for (Entry = 0; Entry < MAX_RTA_BINDINGS; Entry++) {
 382                                 if ((EmptySlot == -1) && (p->RIOBindTab[Entry] == 0L))
 383                                         EmptySlot = Entry;
 384                                 else if (p->RIOBindTab[Entry] == arg) {
 385                                         /*
 386                                          ** Already exists - delete
 387                                          */
 388                                         p->RIOBindTab[Entry] = 0L;
 389                                         rio_dprintk(RIO_DEBUG_CTRL, "Removing Rta %ld from p->RIOBindTab\n", arg);
 390                                         return 0;
 391                                 }
 392                         }
 393                         /*
 394                          ** Dosen't exist - add
 395                          */
 396                         if (EmptySlot != -1) {
 397                                 p->RIOBindTab[EmptySlot] = arg;
 398                                 rio_dprintk(RIO_DEBUG_CTRL, "Adding Rta %lx to p->RIOBindTab\n", arg);
 399                         } else {
 400                                 rio_dprintk(RIO_DEBUG_CTRL, "p->RIOBindTab full! - Rta %lx not added\n", arg);
 401                                 return -ENOMEM;
 402                         }
 403                         return 0;
 404                 }
 405
 406         case RIO_RESUME:
 407                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME\n");
 408                 port = arg;
 409                 if ((port < 0) || (port > 511)) {
 410                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Bad port number %d\n", port);
 411                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 412                         return -EINVAL;
 413                 }
 414                 PortP = p->RIOPortp[port];
 415                 if (!PortP->Mapped) {
 416                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Port %d not mapped\n", port);
 417                         p->RIOError.Error = PORT_NOT_MAPPED_INTO_SYSTEM;
 418                         return -EINVAL;
 419                 }
 420                 if (!(PortP->State & (RIO_LOPEN | RIO_MOPEN))) {
 421                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Port %d not open\n", port);
 422                         return -EINVAL;
 423                 }
 424
 425                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 426                 if (RIOPreemptiveCmd(p, (p->RIOPortp[port]), RESUME) == RIO_FAIL) {
 427                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME failed\n");
 428                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 429                         return -EBUSY;
 430                 } else {
 431                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Port %d resumed\n", port);
 432                         PortP->State |= RIO_BUSY;
 433                 }
 434                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 435                 return retval;
 436
 437         case RIO_ASSIGN_RTA:
 438                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_ASSIGN_RTA\n");
 439                 if (!su) {
 440                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_ASSIGN_RTA !Root\n");
 441                         p->RIOError.Error = NOT_SUPER_USER;
 442                         return -EPERM;
 443                 }
 444                 if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
 445                         rio_dprintk(RIO_DEBUG_CTRL, "Copy from user space failed\n");
 446                         p->RIOError.Error = COPYIN_FAILED;
 447                         return -EFAULT;
 448                 }
 449                 return RIOAssignRta(p, &MapEnt);
 450
 451         case RIO_CHANGE_NAME:
 452                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_CHANGE_NAME\n");
 453                 if (!su) {
 454                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_CHANGE_NAME !Root\n");
 455                         p->RIOError.Error = NOT_SUPER_USER;
 456                         return -EPERM;
 457                 }
 458                 if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
 459                         rio_dprintk(RIO_DEBUG_CTRL, "Copy from user space failed\n");
 460                         p->RIOError.Error = COPYIN_FAILED;
 461                         return -EFAULT;
 462                 }
 463                 return RIOChangeName(p, &MapEnt);
 464
 465         case RIO_DELETE_RTA:
 466                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_DELETE_RTA\n");
 467                 if (!su) {
 468                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_DELETE_RTA !Root\n");
 469                         p->RIOError.Error = NOT_SUPER_USER;
 470                         return -EPERM;
 471                 }
 472                 if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
 473                         rio_dprintk(RIO_DEBUG_CTRL, "Copy from data space failed\n");
 474                         p->RIOError.Error = COPYIN_FAILED;
 475                         return -EFAULT;
 476                 }
 477                 return RIODeleteRta(p, &MapEnt);
 478
 479         case RIO_QUICK_CHECK:
 480                 if (copy_to_user(argp, &p->RIORtaDisCons, sizeof(unsigned int))) {
 481                         p->RIOError.Error = COPYOUT_FAILED;
 482                         return -EFAULT;
 483                 }
 484                 return 0;
 485
 486         case RIO_LAST_ERROR:
 487                 if (copy_to_user(argp, &p->RIOError, sizeof(struct Error)))
 488                         return -EFAULT;
 489                 return 0;
 490
 491         case RIO_GET_LOG:
 492                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_LOG\n");
 493                 return -EINVAL;
 494
 495         case RIO_GET_MODTYPE:
 496                 if (copy_from_user(&port, argp, sizeof(unsigned int))) {
 497                         p->RIOError.Error = COPYIN_FAILED;
 498                         return -EFAULT;
 499                 }
 500                 rio_dprintk(RIO_DEBUG_CTRL, "Get module type for port %d\n", port);
 501                 if (port < 0 || port > 511) {
 502                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_MODTYPE: Bad port number %d\n", port);
 503                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 504                         return -EINVAL;
 505                 }
 506                 PortP = (p->RIOPortp[port]);
 507                 if (!PortP->Mapped) {
 508                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_MODTYPE: Port %d not mapped\n", port);
 509                         p->RIOError.Error = PORT_NOT_MAPPED_INTO_SYSTEM;
 510                         return -EINVAL;
 511                 }
 512                 /*
 513                  ** Return module type of port
 514                  */
 515                 port = PortP->HostP->UnixRups[PortP->RupNum].ModTypes;
 516                 if (copy_to_user(argp, &port, sizeof(unsigned int))) {
 517                         p->RIOError.Error = COPYOUT_FAILED;
 518                         return -EFAULT;
 519                 }
 520                 return (0);
 521         case RIO_BLOCK_OPENS:
 522                 rio_dprintk(RIO_DEBUG_CTRL, "Opens block until booted\n");
 523                 for (Entry = 0; Entry < RIO_PORTS; Entry++) {
 524                         rio_spin_lock_irqsave(&PortP->portSem, flags);
 525                         p->RIOPortp[Entry]->WaitUntilBooted = 1;
 526                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 527                 }
 528                 return 0;
 529
 530         case RIO_SETUP_PORTS:
 531                 rio_dprintk(RIO_DEBUG_CTRL, "Setup ports\n");
 532                 if (copy_from_user(&PortSetup, argp, sizeof(PortSetup))) {
 533                         p->RIOError.Error = COPYIN_FAILED;
 534                         rio_dprintk(RIO_DEBUG_CTRL, "EFAULT");
 535                         return -EFAULT;
 536                 }
 537                 if (PortSetup.From > PortSetup.To || PortSetup.To >= RIO_PORTS) {
 538                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 539                         rio_dprintk(RIO_DEBUG_CTRL, "ENXIO");
 540                         return -ENXIO;
 541                 }
 542                 if (PortSetup.XpCps > p->RIOConf.MaxXpCps || PortSetup.XpCps < p->RIOConf.MinXpCps) {
 543                         p->RIOError.Error = XPRINT_CPS_OUT_OF_RANGE;
 544                         rio_dprintk(RIO_DEBUG_CTRL, "EINVAL");
 545                         return -EINVAL;
 546                 }
 547                 if (!p->RIOPortp) {
 548                         printk(KERN_ERR "rio: No p->RIOPortp array!\n");
 549                         rio_dprintk(RIO_DEBUG_CTRL, "No p->RIOPortp array!\n");
 550                         return -EIO;
 551                 }
 552                 rio_dprintk(RIO_DEBUG_CTRL, "entering loop (%d %d)!\n", PortSetup.From, PortSetup.To);
 553                 for (loop = PortSetup.From; loop <= PortSetup.To; loop++) {
 554                         rio_dprintk(RIO_DEBUG_CTRL, "in loop (%d)!\n", loop);
 555                 }
 556                 rio_dprintk(RIO_DEBUG_CTRL, "after loop (%d)!\n", loop);
 557                 rio_dprintk(RIO_DEBUG_CTRL, "Retval:%x\n", retval);
 558                 return retval;
 559
 560         case RIO_GET_PORT_SETUP:
 561                 rio_dprintk(RIO_DEBUG_CTRL, "Get port setup\n");
 562                 if (copy_from_user(&PortSetup, argp, sizeof(PortSetup))) {
 563                         p->RIOError.Error = COPYIN_FAILED;
 564                         return -EFAULT;
 565                 }
 566                 if (PortSetup.From >= RIO_PORTS) {
 567                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 568                         return -ENXIO;
 569                 }
 570
 571                 port = PortSetup.To = PortSetup.From;
 572                 PortSetup.IxAny = (p->RIOPortp[port]->Config & RIO_IXANY) ? 1 : 0;
 573                 PortSetup.IxOn = (p->RIOPortp[port]->Config & RIO_IXON) ? 1 : 0;
 574                 PortSetup.Drain = (p->RIOPortp[port]->Config & RIO_WAITDRAIN) ? 1 : 0;
 575                 PortSetup.Store = p->RIOPortp[port]->Store;
 576                 PortSetup.Lock = p->RIOPortp[port]->Lock;
 577                 PortSetup.XpCps = p->RIOPortp[port]->Xprint.XpCps;
 578                 memcpy(PortSetup.XpOn, p->RIOPortp[port]->Xprint.XpOn, MAX_XP_CTRL_LEN);
 579                 memcpy(PortSetup.XpOff, p->RIOPortp[port]->Xprint.XpOff, MAX_XP_CTRL_LEN);
 580                 PortSetup.XpOn[MAX_XP_CTRL_LEN - 1] = '\0';
 581                 PortSetup.XpOff[MAX_XP_CTRL_LEN - 1] = '\0';
 582
 583                 if (copy_to_user(argp, &PortSetup, sizeof(PortSetup))) {
 584                         p->RIOError.Error = COPYOUT_FAILED;
 585                         return -EFAULT;
 586                 }
 587                 return retval;
 588
 589         case RIO_GET_PORT_PARAMS:
 590                 rio_dprintk(RIO_DEBUG_CTRL, "Get port params\n");
 591                 if (copy_from_user(&PortParams, argp, sizeof(struct PortParams))) {
 592                         p->RIOError.Error = COPYIN_FAILED;
 593                         return -EFAULT;
 594                 }
 595                 if (PortParams.Port >= RIO_PORTS) {
 596                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 597                         return -ENXIO;
 598                 }
 599                 PortP = (p->RIOPortp[PortParams.Port]);
 600                 PortParams.Config = PortP->Config;
 601                 PortParams.State = PortP->State;
 602                 rio_dprintk(RIO_DEBUG_CTRL, "Port %d\n", PortParams.Port);
 603
 604                 if (copy_to_user(argp, &PortParams, sizeof(struct PortParams))) {
 605                         p->RIOError.Error = COPYOUT_FAILED;
 606                         return -EFAULT;
 607                 }
 608                 return retval;
 609
 610         case RIO_GET_PORT_TTY:
 611                 rio_dprintk(RIO_DEBUG_CTRL, "Get port tty\n");
 612                 if (copy_from_user(&PortTty, argp, sizeof(struct PortTty))) {
 613                         p->RIOError.Error = COPYIN_FAILED;
 614                         return -EFAULT;
 615                 }
 616                 if (PortTty.port >= RIO_PORTS) {
 617                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 618                         return -ENXIO;
 619                 }
 620
 621                 rio_dprintk(RIO_DEBUG_CTRL, "Port %d\n", PortTty.port);
 622                 PortP = (p->RIOPortp[PortTty.port]);
 623                 if (copy_to_user(argp, &PortTty, sizeof(struct PortTty))) {
 624                         p->RIOError.Error = COPYOUT_FAILED;
 625                         return -EFAULT;
 626                 }
 627                 return retval;
 628
 629         case RIO_SET_PORT_TTY:
 630                 if (copy_from_user(&PortTty, argp, sizeof(struct PortTty))) {
 631                         p->RIOError.Error = COPYIN_FAILED;
 632                         return -EFAULT;
 633                 }
 634                 rio_dprintk(RIO_DEBUG_CTRL, "Set port %d tty\n", PortTty.port);
 635                 if (PortTty.port >= (ushort) RIO_PORTS) {
 636                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 637                         return -ENXIO;
 638                 }
 639                 PortP = (p->RIOPortp[PortTty.port]);
 640                 RIOParam(PortP, CONFIG, PortP->State & RIO_MODEM, OK_TO_SLEEP);
 641                 return retval;
 642
 643         case RIO_SET_PORT_PARAMS:
 644                 rio_dprintk(RIO_DEBUG_CTRL, "Set port params\n");
 645                 if (copy_from_user(&PortParams, argp, sizeof(PortParams))) {
 646                         p->RIOError.Error = COPYIN_FAILED;
 647                         return -EFAULT;
 648                 }
 649                 if (PortParams.Port >= (ushort) RIO_PORTS) {
 650                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 651                         return -ENXIO;
 652                 }
 653                 PortP = (p->RIOPortp[PortParams.Port]);
 654                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 655                 PortP->Config = PortParams.Config;
 656                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 657                 return retval;
 658
 659         case RIO_GET_PORT_STATS:
 660                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_PORT_STATS\n");
 661                 if (copy_from_user(&portStats, argp, sizeof(struct portStats))) {
 662                         p->RIOError.Error = COPYIN_FAILED;
 663                         return -EFAULT;
 664                 }
 665                 if (portStats.port < 0 || portStats.port >= RIO_PORTS) {
 666                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 667                         return -ENXIO;
 668                 }
 669                 PortP = (p->RIOPortp[portStats.port]);
 670                 portStats.gather = PortP->statsGather;
 671                 portStats.txchars = PortP->txchars;
 672                 portStats.rxchars = PortP->rxchars;
 673                 portStats.opens = PortP->opens;
 674                 portStats.closes = PortP->closes;
 675                 portStats.ioctls = PortP->ioctls;
 676                 if (copy_to_user(argp, &portStats, sizeof(struct portStats))) {
 677                         p->RIOError.Error = COPYOUT_FAILED;
 678                         return -EFAULT;
 679                 }
 680                 return retval;
 681
 682         case RIO_RESET_PORT_STATS:
 683                 port = arg;
 684                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESET_PORT_STATS\n");
 685                 if (port >= RIO_PORTS) {
 686                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 687                         return -ENXIO;
 688                 }
 689                 PortP = (p->RIOPortp[port]);
 690                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 691                 PortP->txchars = 0;
 692                 PortP->rxchars = 0;
 693                 PortP->opens = 0;
 694                 PortP->closes = 0;
 695                 PortP->ioctls = 0;
 696                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 697                 return retval;
 698
 699         case RIO_GATHER_PORT_STATS:
 700                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GATHER_PORT_STATS\n");
 701                 if (copy_from_user(&portStats, argp, sizeof(struct portStats))) {
 702                         p->RIOError.Error = COPYIN_FAILED;
 703                         return -EFAULT;
 704                 }
 705                 if (portStats.port < 0 || portStats.port >= RIO_PORTS) {
 706                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 707                         return -ENXIO;
 708                 }
 709                 PortP = (p->RIOPortp[portStats.port]);
 710                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 711                 PortP->statsGather = portStats.gather;
 712                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 713                 return retval;
 714
 715         case RIO_READ_CONFIG:
 716                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_CONFIG\n");
 717                 if (copy_to_user(argp, &p->RIOConf, sizeof(struct Conf))) {
 718                         p->RIOError.Error = COPYOUT_FAILED;
 719                         return -EFAULT;
 720                 }
 721                 return retval;
 722
 723         case RIO_SET_CONFIG:
 724                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_CONFIG\n");
 725                 if (!su) {
 726                         p->RIOError.Error = NOT_SUPER_USER;
 727                         return -EPERM;
 728                 }
 729                 if (copy_from_user(&p->RIOConf, argp, sizeof(struct Conf))) {
 730                         p->RIOError.Error = COPYIN_FAILED;
 731                         return -EFAULT;
 732                 }
 733                 /*
 734                  ** move a few value around
 735                  */
 736                 for (Host = 0; Host < p->RIONumHosts; Host++)
 737                         if ((p->RIOHosts[Host].Flags & RUN_STATE) == RC_RUNNING)
 738                                 writew(p->RIOConf.Timer, &p->RIOHosts[Host].ParmMapP->timer);
 739                 return retval;
 740
 741         case RIO_START_POLLER:
 742                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_START_POLLER\n");
 743                 return -EINVAL;
 744
 745         case RIO_STOP_POLLER:
 746                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_STOP_POLLER\n");
 747                 if (!su) {
 748                         p->RIOError.Error = NOT_SUPER_USER;
 749                         return -EPERM;
 750                 }
 751                 p->RIOPolling = NOT_POLLING;
 752                 return retval;
 753
 754         case RIO_SETDEBUG:
 755         case RIO_GETDEBUG:
 756                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SETDEBUG/RIO_GETDEBUG\n");
 757                 if (copy_from_user(&DebugCtrl, argp, sizeof(DebugCtrl))) {
 758                         p->RIOError.Error = COPYIN_FAILED;
 759                         return -EFAULT;
 760                 }
 761                 if (DebugCtrl.SysPort == NO_PORT) {
 762                         if (cmd == RIO_SETDEBUG) {
 763                                 if (!su) {
 764                                         p->RIOError.Error = NOT_SUPER_USER;
 765                                         return -EPERM;
 766                                 }
 767                                 p->rio_debug = DebugCtrl.Debug;
 768                                 p->RIODebugWait = DebugCtrl.Wait;
 769                                 rio_dprintk(RIO_DEBUG_CTRL, "Set global debug to 0x%x set wait to 0x%x\n", p->rio_debug, p->RIODebugWait);
 770                         } else {
 771                                 rio_dprintk(RIO_DEBUG_CTRL, "Get global debug 0x%x wait 0x%x\n", p->rio_debug, p->RIODebugWait);
 772                                 DebugCtrl.Debug = p->rio_debug;
 773                                 DebugCtrl.Wait = p->RIODebugWait;
 774                                 if (copy_to_user(argp, &DebugCtrl, sizeof(DebugCtrl))) {
 775                                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n", DebugCtrl.SysPort);
 776                                         p->RIOError.Error = COPYOUT_FAILED;
 777                                         return -EFAULT;
 778                                 }
 779                         }
 780                 } else if (DebugCtrl.SysPort >= RIO_PORTS && DebugCtrl.SysPort != NO_PORT) {
 781                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n", DebugCtrl.SysPort);
 782                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 783                         return -ENXIO;
 784                 } else if (cmd == RIO_SETDEBUG) {
 785                         if (!su) {
 786                                 p->RIOError.Error = NOT_SUPER_USER;
 787                                 return -EPERM;
 788                         }
 789                         rio_spin_lock_irqsave(&PortP->portSem, flags);
 790                         p->RIOPortp[DebugCtrl.SysPort]->Debug = DebugCtrl.Debug;
 791                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 792                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SETDEBUG 0x%x\n", p->RIOPortp[DebugCtrl.SysPort]->Debug);
 793                 } else {
 794                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GETDEBUG 0x%x\n", p->RIOPortp[DebugCtrl.SysPort]->Debug);
 795                         DebugCtrl.Debug = p->RIOPortp[DebugCtrl.SysPort]->Debug;
 796                         if (copy_to_user(argp, &DebugCtrl, sizeof(DebugCtrl))) {
 797                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GETDEBUG: Bad copy to user space\n");
 798                                 p->RIOError.Error = COPYOUT_FAILED;
 799                                 return -EFAULT;
 800                         }
 801                 }
 802                 return retval;
 803
 804         case RIO_VERSID:
 805                 /*
 806                  ** Enquire about the release and version.
 807                  ** We return MAX_VERSION_LEN bytes, being a
 808                  ** textual null terminated string.
 809                  */
 810                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_VERSID\n");
 811                 if (copy_to_user(argp, RIOVersid(), sizeof(struct rioVersion))) {
 812                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_VERSID: Bad copy to user space (host=%d)\n", Host);
 813                         p->RIOError.Error = COPYOUT_FAILED;
 814                         return -EFAULT;
 815                 }
 816                 return retval;
 817
 818         case RIO_NUM_HOSTS:
 819                 /*
 820                  ** Enquire as to the number of hosts located
 821                  ** at init time.
 822                  */
 823                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_NUM_HOSTS\n");
 824                 if (copy_to_user(argp, &p->RIONumHosts, sizeof(p->RIONumHosts))) {
 825                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_NUM_HOSTS: Bad copy to user space\n");
 826                         p->RIOError.Error = COPYOUT_FAILED;
 827                         return -EFAULT;
 828                 }
 829                 return retval;
 830
 831         case RIO_HOST_FOAD:
 832                 /*
 833                  ** Kill host. This may not be in the final version...
 834                  */
 835                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD %ld\n", arg);
 836                 if (!su) {
 837                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD: Not super user\n");
 838                         p->RIOError.Error = NOT_SUPER_USER;
 839                         return -EPERM;
 840                 }
 841                 p->RIOHalted = 1;
 842                 p->RIOSystemUp = 0;
 843
 844                 for (Host = 0; Host < p->RIONumHosts; Host++) {
 845                         (void) RIOBoardTest(p->RIOHosts[Host].PaddrP, p->RIOHosts[Host].Caddr, p->RIOHosts[Host].Type, p->RIOHosts[Host].Slot);
 846                         memset(&p->RIOHosts[Host].Flags, 0, ((char *) &p->RIOHosts[Host].____end_marker____) - ((char *) &p->RIOHosts[Host].Flags));
 847                         p->RIOHosts[Host].Flags = RC_WAITING;
 848                 }
 849                 RIOFoadWakeup(p);
 850                 p->RIONumBootPkts = 0;
 851                 p->RIOBooting = 0;
 852                 printk("HEEEEELP!\n");
 853
 854                 for (loop = 0; loop < RIO_PORTS; loop++) {
 855                         spin_lock_init(&p->RIOPortp[loop]->portSem);
 856                         p->RIOPortp[loop]->InUse = NOT_INUSE;
 857                 }
 858
 859                 p->RIOSystemUp = 0;
 860                 return retval;
 861
 862         case RIO_DOWNLOAD:
 863                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD\n");
 864                 if (!su) {
 865                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Not super user\n");
 866                         p->RIOError.Error = NOT_SUPER_USER;
 867                         return -EPERM;
 868                 }
 869                 if (copy_from_user(&DownLoad, argp, sizeof(DownLoad))) {
 870                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Copy in from user space failed\n");
 871                         p->RIOError.Error = COPYIN_FAILED;
 872                         return -EFAULT;
 873                 }
 874                 rio_dprintk(RIO_DEBUG_CTRL, "Copied in download code for product code 0x%x\n", DownLoad.ProductCode);
 875
 876                 /*
 877                  ** It is important that the product code is an unsigned object!
 878                  */
 879                 if (DownLoad.ProductCode > MAX_PRODUCT) {
 880                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Bad product code %d passed\n", DownLoad.ProductCode);
 881                         p->RIOError.Error = NO_SUCH_PRODUCT;
 882                         return -ENXIO;
 883                 }
 884                 /*
 885                  ** do something!
 886                  */
 887                 retval = (*(RIOBootTable[DownLoad.ProductCode])) (p, &DownLoad);
 888                 /* <-- Panic */
 889                 p->RIOHalted = 0;
 890                 /*
 891                  ** and go back, content with a job well completed.
 892                  */
 893                 return retval;
 894
 895         case RIO_PARMS:
 896                 {
 897                         unsigned int host;
 898
 899                         if (copy_from_user(&host, argp, sizeof(host))) {
 900                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
 901                                 p->RIOError.Error = COPYIN_FAILED;
 902                                 return -EFAULT;
 903                         }
 904                         /*
 905                          ** Fetch the parmmap
 906                          */
 907                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PARMS\n");
 908                         if (copy_from_io(argp, p->RIOHosts[host].ParmMapP, sizeof(PARM_MAP))) {
 909                                 p->RIOError.Error = COPYOUT_FAILED;
 910                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_PARMS: Copy out to user space failed\n");
 911                                 return -EFAULT;
 912                         }
 913                 }
 914                 return retval;
 915
 916         case RIO_HOST_REQ:
 917                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ\n");
 918                 if (copy_from_user(&HostReq, argp, sizeof(HostReq))) {
 919                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
 920                         p->RIOError.Error = COPYIN_FAILED;
 921                         return -EFAULT;
 922                 }
 923                 if (HostReq.HostNum >= p->RIONumHosts) {
 924                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
 925                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Illegal host number %d\n", HostReq.HostNum);
 926                         return -ENXIO;
 927                 }
 928                 rio_dprintk(RIO_DEBUG_CTRL, "Request for host %d\n", HostReq.HostNum);
 929
 930                 if (copy_to_user(HostReq.HostP, &p->RIOHosts[HostReq.HostNum], sizeof(struct Host))) {
 931                         p->RIOError.Error = COPYOUT_FAILED;
 932                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Bad copy to user space\n");
 933                         return -EFAULT;
 934                 }
 935                 return retval;
 936
 937         case RIO_HOST_DPRAM:
 938                 rio_dprintk(RIO_DEBUG_CTRL, "Request for DPRAM\n");
 939                 if (copy_from_user(&HostDpRam, argp, sizeof(HostDpRam))) {
 940                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Copy in from user space failed\n");
 941                         p->RIOError.Error = COPYIN_FAILED;
 942                         return -EFAULT;
 943                 }
 944                 if (HostDpRam.HostNum >= p->RIONumHosts) {
 945                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
 946                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Illegal host number %d\n", HostDpRam.HostNum);
 947                         return -ENXIO;
 948                 }
 949                 rio_dprintk(RIO_DEBUG_CTRL, "Request for host %d\n", HostDpRam.HostNum);
 950
 951                 if (p->RIOHosts[HostDpRam.HostNum].Type == RIO_PCI) {
 952                         int off;
 953                         /* It's hardware like this that really gets on my tits. */
 954                         static unsigned char copy[sizeof(struct DpRam)];
 955                         for (off = 0; off < sizeof(struct DpRam); off++)
 956                                 copy[off] = readb(p->RIOHosts[HostDpRam.HostNum].Caddr + off);
 957                         if (copy_to_user(HostDpRam.DpRamP, copy, sizeof(struct DpRam))) {
 958                                 p->RIOError.Error = COPYOUT_FAILED;
 959                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
 960                                 return -EFAULT;
 961                         }
 962                 } else if (copy_from_io(HostDpRam.DpRamP, p->RIOHosts[HostDpRam.HostNum].Caddr, sizeof(struct DpRam))) {
 963                         p->RIOError.Error = COPYOUT_FAILED;
 964                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
 965                         return -EFAULT;
 966                 }
 967                 return retval;
 968
 969         case RIO_SET_BUSY:
 970                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY\n");
 971                 if (arg > 511) {
 972                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY: Bad port number %ld\n", arg);
 973                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 974                         return -EINVAL;
 975                 }
 976                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 977                 p->RIOPortp[arg]->State |= RIO_BUSY;
 978                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 979                 return retval;
 980
 981         case RIO_HOST_PORT:
 982                 /*
 983                  ** The daemon want port information
 984                  ** (probably for debug reasons)
 985                  */
 986                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT\n");
 987                 if (copy_from_user(&PortReq, argp, sizeof(PortReq))) {
 988                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Copy in from user space failed\n");
 989                         p->RIOError.Error = COPYIN_FAILED;
 990                         return -EFAULT;
 991                 }
 992
 993                 if (PortReq.SysPort >= RIO_PORTS) {     /* SysPort is unsigned */
 994                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Illegal port number %d\n", PortReq.SysPort);
 995                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 996                         return -ENXIO;
 997                 }
 998                 rio_dprintk(RIO_DEBUG_CTRL, "Request for port %d\n", PortReq.SysPort);
 999                 if (copy_to_user(PortReq.PortP, p->RIOPortp[PortReq.SysPort], sizeof(struct Port))) {
1000                         p->RIOError.Error = COPYOUT_FAILED;
1001                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Bad copy to user space\n");
1002                         return -EFAULT;
1003                 }
1004                 return retval;
1005
1006         case RIO_HOST_RUP:
1007                 /*
1008                  ** The daemon want rup information
1009                  ** (probably for debug reasons)
1010                  */
1011                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP\n");
1012                 if (copy_from_user(&RupReq, argp, sizeof(RupReq))) {
1013                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Copy in from user space failed\n");
1014                         p->RIOError.Error = COPYIN_FAILED;
1015                         return -EFAULT;
1016                 }
1017                 if (RupReq.HostNum >= p->RIONumHosts) { /* host is unsigned */
1018                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Illegal host number %d\n", RupReq.HostNum);
1019                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
1020                         return -ENXIO;
1021                 }
1022                 if (RupReq.RupNum >= MAX_RUP + LINKS_PER_UNIT) {        /* eek! */
1023                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Illegal rup number %d\n", RupReq.RupNum);
1024                         p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
1025                         return -EINVAL;
1026                 }
1027                 HostP = &p->RIOHosts[RupReq.HostNum];
1028
1029                 if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
1030                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Host %d not running\n", RupReq.HostNum);
1031                         p->RIOError.Error = HOST_NOT_RUNNING;
1032                         return -EIO;
1033                 }
1034                 rio_dprintk(RIO_DEBUG_CTRL, "Request for rup %d from host %d\n", RupReq.RupNum, RupReq.HostNum);
1035
1036                 if (copy_from_io(RupReq.RupP, HostP->UnixRups[RupReq.RupNum].RupP, sizeof(struct RUP))) {
1037                         p->RIOError.Error = COPYOUT_FAILED;
1038                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Bad copy to user space\n");
1039                         return -EFAULT;
1040                 }
1041                 return retval;
1042
1043         case RIO_HOST_LPB:
1044                 /*
1045                  ** The daemon want lpb information
1046                  ** (probably for debug reasons)
1047                  */
1048                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB\n");
1049                 if (copy_from_user(&LpbReq, argp, sizeof(LpbReq))) {
1050                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy from user space\n");
1051                         p->RIOError.Error = COPYIN_FAILED;
1052                         return -EFAULT;
1053                 }
1054                 if (LpbReq.Host >= p->RIONumHosts) {    /* host is unsigned */
1055                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Illegal host number %d\n", LpbReq.Host);
1056                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
1057                         return -ENXIO;
1058                 }
1059                 if (LpbReq.Link >= LINKS_PER_UNIT) {    /* eek! */
1060                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Illegal link number %d\n", LpbReq.Link);
1061                         p->RIOError.Error = LINK_NUMBER_OUT_OF_RANGE;
1062                         return -EINVAL;
1063                 }
1064                 HostP = &p->RIOHosts[LpbReq.Host];
1065
1066                 if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
1067                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Host %d not running\n", LpbReq.Host);
1068                         p->RIOError.Error = HOST_NOT_RUNNING;
1069                         return -EIO;
1070                 }
1071                 rio_dprintk(RIO_DEBUG_CTRL, "Request for lpb %d from host %d\n", LpbReq.Link, LpbReq.Host);
1072
1073                 if (copy_from_io(LpbReq.LpbP, &HostP->LinkStrP[LpbReq.Link], sizeof(struct LPB))) {
1074                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy to user space\n");
1075                         p->RIOError.Error = COPYOUT_FAILED;
1076                         return -EFAULT;
1077                 }
1078                 return retval;
1079
1080                 /*
1081                  ** Here 3 IOCTL's that allow us to change the way in which
1082                  ** rio logs errors. send them just to syslog or send them
1083                  ** to both syslog and console or send them to just the console.
1084                  **
1085                  ** See RioStrBuf() in util.c for the other half.
1086                  */
1087         case RIO_SYSLOG_ONLY:
1088                 p->RIOPrintLogState = PRINT_TO_LOG;     /* Just syslog */
1089                 return 0;
1090
1091         case RIO_SYSLOG_CONS:
1092                 p->RIOPrintLogState = PRINT_TO_LOG_CONS;        /* syslog and console */
1093                 return 0;
1094
1095         case RIO_CONS_ONLY:
1096                 p->RIOPrintLogState = PRINT_TO_CONS;    /* Just console */
1097                 return 0;
1098
1099         case RIO_SIGNALS_ON:
1100                 if (p->RIOSignalProcess) {
1101                         p->RIOError.Error = SIGNALS_ALREADY_SET;
1102                         return -EBUSY;
1103                 }
1104                 /* FIXME: PID tracking */
1105                 p->RIOSignalProcess = current->pid;
1106                 p->RIOPrintDisabled = DONT_PRINT;
1107                 return retval;
1108
1109         case RIO_SIGNALS_OFF:
1110                 if (p->RIOSignalProcess != current->pid) {
1111                         p->RIOError.Error = NOT_RECEIVING_PROCESS;
1112                         return -EPERM;
1113                 }
1114                 rio_dprintk(RIO_DEBUG_CTRL, "Clear signal process to zero\n");
1115                 p->RIOSignalProcess = 0;
1116                 return retval;
1117
1118         case RIO_SET_BYTE_MODE:
1119                 for (Host = 0; Host < p->RIONumHosts; Host++)
1120                         if (p->RIOHosts[Host].Type == RIO_AT)
1121                                 p->RIOHosts[Host].Mode &= ~WORD_OPERATION;
1122                 return retval;
1123
1124         case RIO_SET_WORD_MODE:
1125                 for (Host = 0; Host < p->RIONumHosts; Host++)
1126                         if (p->RIOHosts[Host].Type == RIO_AT)
1127                                 p->RIOHosts[Host].Mode |= WORD_OPERATION;
1128                 return retval;
1129
1130         case RIO_SET_FAST_BUS:
1131                 for (Host = 0; Host < p->RIONumHosts; Host++)
1132                         if (p->RIOHosts[Host].Type == RIO_AT)
1133                                 p->RIOHosts[Host].Mode |= FAST_AT_BUS;
1134                 return retval;
1135
1136         case RIO_SET_SLOW_BUS:
1137                 for (Host = 0; Host < p->RIONumHosts; Host++)
1138                         if (p->RIOHosts[Host].Type == RIO_AT)
1139                                 p->RIOHosts[Host].Mode &= ~FAST_AT_BUS;
1140                 return retval;
1141
1142         case RIO_MAP_B50_TO_50:
1143         case RIO_MAP_B50_TO_57600:
1144         case RIO_MAP_B110_TO_110:
1145         case RIO_MAP_B110_TO_115200:
1146                 rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping\n");
1147                 port = arg;
1148                 if (port < 0 || port > 511) {
1149                         rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", port);
1150                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
1151                         return -EINVAL;
1152                 }
1153                 rio_spin_lock_irqsave(&PortP->portSem, flags);
1154                 switch (cmd) {
1155                 case RIO_MAP_B50_TO_50:
1156                         p->RIOPortp[port]->Config |= RIO_MAP_50_TO_50;
1157                         break;
1158                 case RIO_MAP_B50_TO_57600:
1159                         p->RIOPortp[port]->Config &= ~RIO_MAP_50_TO_50;
1160                         break;
1161                 case RIO_MAP_B110_TO_110:
1162                         p->RIOPortp[port]->Config |= RIO_MAP_110_TO_110;
1163                         break;
1164                 case RIO_MAP_B110_TO_115200:
1165                         p->RIOPortp[port]->Config &= ~RIO_MAP_110_TO_110;
1166                         break;
1167                 }
1168                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1169                 return retval;
1170
1171         case RIO_STREAM_INFO:
1172                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_STREAM_INFO\n");
1173                 return -EINVAL;
1174
1175         case RIO_SEND_PACKET:
1176                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SEND_PACKET\n");
1177                 if (copy_from_user(&SendPack, argp, sizeof(SendPack))) {
1178                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SEND_PACKET: Bad copy from user space\n");
1179                         p->RIOError.Error = COPYIN_FAILED;
1180                         return -EFAULT;
1181                 }
1182                 if (SendPack.PortNum >= 128) {
1183                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
1184                         return -ENXIO;
1185                 }
1186
1187                 PortP = p->RIOPortp[SendPack.PortNum];
1188                 rio_spin_lock_irqsave(&PortP->portSem, flags);
1189
1190                 if (!can_add_transmit(&PacketP, PortP)) {
1191                         p->RIOError.Error = UNIT_IS_IN_USE;
1192                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1193                         return -ENOSPC;
1194                 }
1195
1196                 for (loop = 0; loop < (ushort) (SendPack.Len & 127); loop++)
1197                         writeb(SendPack.Data[loop], &PacketP->data[loop]);
1198
1199                 writeb(SendPack.Len, &PacketP->len);
1200
1201                 add_transmit(PortP);
1202                 /*
1203                  ** Count characters transmitted for port statistics reporting
1204                  */
1205                 if (PortP->statsGather)
1206                         PortP->txchars += (SendPack.Len & 127);
1207                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1208                 return retval;
1209
1210         case RIO_NO_MESG:
1211                 if (su)
1212                         p->RIONoMessage = 1;
1213                 return su ? 0 : -EPERM;
1214
1215         case RIO_MESG:
1216                 if (su)
1217                         p->RIONoMessage = 0;
1218                 return su ? 0 : -EPERM;
1219
1220         case RIO_WHAT_MESG:
1221                 if (copy_to_user(argp, &p->RIONoMessage, sizeof(p->RIONoMessage))) {
1222                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_WHAT_MESG: Bad copy to user space\n");
1223                         p->RIOError.Error = COPYOUT_FAILED;
1224                         return -EFAULT;
1225                 }
1226                 return 0;
1227
1228         case RIO_MEM_DUMP:
1229                 if (copy_from_user(&SubCmd, argp, sizeof(struct SubCmdStruct))) {
1230                         p->RIOError.Error = COPYIN_FAILED;
1231                         return -EFAULT;
1232                 }
1233                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP host %d rup %d addr %x\n", SubCmd.Host, SubCmd.Rup, SubCmd.Addr);
1234
1235                 if (SubCmd.Rup >= MAX_RUP + LINKS_PER_UNIT) {
1236                         p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
1237                         return -EINVAL;
1238                 }
1239
1240                 if (SubCmd.Host >= p->RIONumHosts) {
1241                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
1242                         return -EINVAL;
1243                 }
1244
1245                 port = p->RIOHosts[SubCmd.Host].UnixRups[SubCmd.Rup].BaseSysPort;
1246
1247                 PortP = p->RIOPortp[port];
1248
1249                 rio_spin_lock_irqsave(&PortP->portSem, flags);
1250
1251                 if (RIOPreemptiveCmd(p, PortP, MEMDUMP) == RIO_FAIL) {
1252                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP failed\n");
1253                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1254                         return -EBUSY;
1255                 } else
1256                         PortP->State |= RIO_BUSY;
1257
1258                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1259                 if (copy_to_user(argp, p->RIOMemDump, MEMDUMP_SIZE)) {
1260                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP copy failed\n");
1261                         p->RIOError.Error = COPYOUT_FAILED;
1262                         return -EFAULT;
1263                 }
1264                 return 0;
1265
1266         case RIO_TICK:
1267                 if (arg >= p->RIONumHosts)
1268                         return -EINVAL;
1269                 rio_dprintk(RIO_DEBUG_CTRL, "Set interrupt for host %ld\n", arg);
1270                 writeb(0xFF, &p->RIOHosts[arg].SetInt);
1271                 return 0;
1272
1273         case RIO_TOCK:
1274                 if (arg >= p->RIONumHosts)
1275                         return -EINVAL;
1276                 rio_dprintk(RIO_DEBUG_CTRL, "Clear interrupt for host %ld\n", arg);
1277                 writeb(0xFF, &p->RIOHosts[arg].ResetInt);
1278                 return 0;
1279
1280         case RIO_READ_CHECK:
1281                 /* Check reads for pkts with data[0] the same */
1282                 p->RIOReadCheck = !p->RIOReadCheck;
1283                 if (copy_to_user(argp, &p->RIOReadCheck, sizeof(unsigned int))) {
1284                         p->RIOError.Error = COPYOUT_FAILED;
1285                         return -EFAULT;
1286                 }
1287                 return 0;
1288
1289         case RIO_READ_REGISTER:
1290                 if (copy_from_user(&SubCmd, argp, sizeof(struct SubCmdStruct))) {
1291                         p->RIOError.Error = COPYIN_FAILED;
1292                         return -EFAULT;
1293                 }
1294                 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);
1295
1296                 if (SubCmd.Port > 511) {
1297                         rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", SubCmd.Port);
1298                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
1299                         return -EINVAL;
1300                 }
1301
1302                 if (SubCmd.Rup >= MAX_RUP + LINKS_PER_UNIT) {
1303                         p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
1304                         return -EINVAL;
1305                 }
1306
1307                 if (SubCmd.Host >= p->RIONumHosts) {
1308                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
1309                         return -EINVAL;
1310                 }
1311
1312                 port = p->RIOHosts[SubCmd.Host].UnixRups[SubCmd.Rup].BaseSysPort + SubCmd.Port;
1313                 PortP = p->RIOPortp[port];
1314
1315                 rio_spin_lock_irqsave(&PortP->portSem, flags);
1316
1317                 if (RIOPreemptiveCmd(p, PortP, READ_REGISTER) == RIO_FAIL) {
1318                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_REGISTER failed\n");
1319                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1320                         return -EBUSY;
1321                 } else
1322                         PortP->State |= RIO_BUSY;
1323
1324                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1325                 if (copy_to_user(argp, &p->CdRegister, sizeof(unsigned int))) {
1326                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_REGISTER copy failed\n");
1327                         p->RIOError.Error = COPYOUT_FAILED;
1328                         return -EFAULT;
1329                 }
1330                 return 0;
1331                 /*
1332                  ** rio_make_dev: given port number (0-511) ORed with port type
1333                  ** (RIO_DEV_DIRECT, RIO_DEV_MODEM, RIO_DEV_XPRINT) return dev_t
1334                  ** value to pass to mknod to create the correct device node.
1335                  */
1336         case RIO_MAKE_DEV:
1337                 {
1338                         unsigned int port = arg & RIO_MODEM_MASK;
1339                         unsigned int ret;
1340
1341                         switch (arg & RIO_DEV_MASK) {
1342                         case RIO_DEV_DIRECT:
1343                                 ret = drv_makedev(MAJOR(dev), port);
1344                                 rio_dprintk(RIO_DEBUG_CTRL, "Makedev direct 0x%x is 0x%x\n", port, ret);
1345                                 return ret;
1346                         case RIO_DEV_MODEM:
1347                                 ret = drv_makedev(MAJOR(dev), (port | RIO_MODEM_BIT));
1348                                 rio_dprintk(RIO_DEBUG_CTRL, "Makedev modem 0x%x is 0x%x\n", port, ret);
1349                                 return ret;
1350                         case RIO_DEV_XPRINT:
1351                                 ret = drv_makedev(MAJOR(dev), port);
1352                                 rio_dprintk(RIO_DEBUG_CTRL, "Makedev printer 0x%x is 0x%x\n", port, ret);
1353                                 return ret;
1354                         }
1355                         rio_dprintk(RIO_DEBUG_CTRL, "MAKE Device is called\n");
1356                         return -EINVAL;
1357                 }
1358                 /*
1359                  ** rio_minor: given a dev_t from a stat() call, return
1360                  ** the port number (0-511) ORed with the port type
1361                  ** ( RIO_DEV_DIRECT, RIO_DEV_MODEM, RIO_DEV_XPRINT )
1362                  */
1363         case RIO_MINOR:
1364                 {
1365                         dev_t dv;
1366                         int mino;
1367                         unsigned long ret;
1368
1369                         dv = (dev_t) (arg);
1370                         mino = RIO_UNMODEM(dv);
1371
1372                         if (RIO_ISMODEM(dv)) {
1373                                 rio_dprintk(RIO_DEBUG_CTRL, "Minor for device 0x%x: modem %d\n", dv, mino);
1374                                 ret = mino | RIO_DEV_MODEM;
1375                         } else {
1376                                 rio_dprintk(RIO_DEBUG_CTRL, "Minor for device 0x%x: direct %d\n", dv, mino);
1377                                 ret = mino | RIO_DEV_DIRECT;
1378                         }
1379                         return ret;
1380                 }
1381         }
1382         rio_dprintk(RIO_DEBUG_CTRL, "INVALID DAEMON IOCTL 0x%x\n", cmd);
1383         p->RIOError.Error = IOCTL_COMMAND_UNKNOWN;
1384
1385         func_exit();
1386         return -EINVAL;
1387 }
1388
1389 /*
1390 ** Pre-emptive commands go on RUPs and are only one byte long.
1391 */
1392 int RIOPreemptiveCmd(struct rio_info *p, struct Port *PortP, u8 Cmd)
1393 {
1394         struct CmdBlk *CmdBlkP;
1395         struct PktCmd_M *PktCmdP;
1396         int Ret;
1397         ushort rup;
1398         int port;
1399
1400         if (PortP->State & RIO_DELETED) {
1401                 rio_dprintk(RIO_DEBUG_CTRL, "Preemptive command to deleted RTA ignored\n");
1402                 return RIO_FAIL;
1403         }
1404
1405         if ((PortP->InUse == (typeof(PortP->InUse))-1) ||
1406                         !(CmdBlkP = RIOGetCmdBlk())) {
1407                 rio_dprintk(RIO_DEBUG_CTRL, "Cannot allocate command block "
1408                         "for command %d on port %d\n", Cmd, PortP->PortNum);
1409                 return RIO_FAIL;
1410         }
1411
1412         rio_dprintk(RIO_DEBUG_CTRL, "Command blk %p - InUse now %d\n",
1413                         CmdBlkP, PortP->InUse);
1414
1415         PktCmdP = (struct PktCmd_M *)&CmdBlkP->Packet.data[0];
1416
1417         CmdBlkP->Packet.src_unit = 0;
1418         if (PortP->SecondBlock)
1419                 rup = PortP->ID2;
1420         else
1421                 rup = PortP->RupNum;
1422         CmdBlkP->Packet.dest_unit = rup;
1423         CmdBlkP->Packet.src_port = COMMAND_RUP;
1424         CmdBlkP->Packet.dest_port = COMMAND_RUP;
1425         CmdBlkP->Packet.len = PKT_CMD_BIT | 2;
1426         CmdBlkP->PostFuncP = RIOUnUse;
1427         CmdBlkP->PostArg = (unsigned long) PortP;
1428         PktCmdP->Command = Cmd;
1429         port = PortP->HostPort % (ushort) PORTS_PER_RTA;
1430         /*
1431          ** Index ports 8-15 for 2nd block of 16 port RTA.
1432          */
1433         if (PortP->SecondBlock)
1434                 port += (ushort) PORTS_PER_RTA;
1435         PktCmdP->PhbNum = port;
1436
1437         switch (Cmd) {
1438         case MEMDUMP:
1439                 rio_dprintk(RIO_DEBUG_CTRL, "Queue MEMDUMP command blk %p "
1440                                 "(addr 0x%x)\n", CmdBlkP, (int) SubCmd.Addr);
1441                 PktCmdP->SubCommand = MEMDUMP;
1442                 PktCmdP->SubAddr = SubCmd.Addr;
1443                 break;
1444         case FCLOSE:
1445                 rio_dprintk(RIO_DEBUG_CTRL, "Queue FCLOSE command blk %p\n",
1446                                 CmdBlkP);
1447                 break;
1448         case READ_REGISTER:
1449                 rio_dprintk(RIO_DEBUG_CTRL, "Queue READ_REGISTER (0x%x) "
1450                                 "command blk %p\n", (int) SubCmd.Addr, CmdBlkP);
1451                 PktCmdP->SubCommand = READ_REGISTER;
1452                 PktCmdP->SubAddr = SubCmd.Addr;
1453                 break;
1454         case RESUME:
1455                 rio_dprintk(RIO_DEBUG_CTRL, "Queue RESUME command blk %p\n",
1456                                 CmdBlkP);
1457                 break;
1458         case RFLUSH:
1459                 rio_dprintk(RIO_DEBUG_CTRL, "Queue RFLUSH command blk %p\n",
1460                                 CmdBlkP);
1461                 CmdBlkP->PostFuncP = RIORFlushEnable;
1462                 break;
1463         case SUSPEND:
1464                 rio_dprintk(RIO_DEBUG_CTRL, "Queue SUSPEND command blk %p\n",
1465                                 CmdBlkP);
1466                 break;
1467
1468         case MGET:
1469                 rio_dprintk(RIO_DEBUG_CTRL, "Queue MGET command blk %p\n",
1470                                 CmdBlkP);
1471                 break;
1472
1473         case MSET:
1474         case MBIC:
1475         case MBIS:
1476                 CmdBlkP->Packet.data[4] = (char) PortP->ModemLines;
1477                 rio_dprintk(RIO_DEBUG_CTRL, "Queue MSET/MBIC/MBIS command "
1478                                 "blk %p\n", CmdBlkP);
1479                 break;
1480
1481         case WFLUSH:
1482                 /*
1483                  ** If we have queued up the maximum number of Write flushes
1484                  ** allowed then we should not bother sending any more to the
1485                  ** RTA.
1486                  */
1487                 if (PortP->WflushFlag == (typeof(PortP->WflushFlag))-1) {
1488                         rio_dprintk(RIO_DEBUG_CTRL, "Trashed WFLUSH, "
1489                                         "WflushFlag about to wrap!");
1490                         RIOFreeCmdBlk(CmdBlkP);
1491                         return (RIO_FAIL);
1492                 } else {
1493                         rio_dprintk(RIO_DEBUG_CTRL, "Queue WFLUSH command "
1494                                         "blk %p\n", CmdBlkP);
1495                         CmdBlkP->PostFuncP = RIOWFlushMark;
1496                 }
1497                 break;
1498         }
1499
1500         PortP->InUse++;
1501
1502         Ret = RIOQueueCmdBlk(PortP->HostP, rup, CmdBlkP);
1503
1504         return Ret;
1505 }