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/uaccess.h>
  44
  45 #include <linux/termios.h>
  46 #include <linux/serial.h>
  47
  48 #include <linux/generic_serial.h>
  49
  50
  51 #include "linux_compat.h"
  52 #include "rio_linux.h"
  53 #include "pkt.h"
  54 #include "daemon.h"
  55 #include "rio.h"
  56 #include "riospace.h"
  57 #include "cmdpkt.h"
  58 #include "map.h"
  59 #include "rup.h"
  60 #include "port.h"
  61 #include "riodrvr.h"
  62 #include "rioinfo.h"
  63 #include "func.h"
  64 #include "errors.h"
  65 #include "pci.h"
  66
  67 #include "parmmap.h"
  68 #include "unixrup.h"
  69 #include "board.h"
  70 #include "host.h"
  71 #include "phb.h"
  72 #include "link.h"
  73 #include "cmdblk.h"
  74 #include "route.h"
  75 #include "cirrus.h"
  76 #include "rioioctl.h"
  77
  78
  79 static struct LpbReq LpbReq;
  80 static struct RupReq RupReq;
  81 static struct PortReq PortReq;
  82 static struct HostReq HostReq;  /* oh really?  global?  and no locking? */
  83 static struct HostDpRam HostDpRam;
  84 static struct DebugCtrl DebugCtrl;
  85 static struct Map MapEnt;
  86 static struct PortSetup PortSetup;
  87 static struct DownLoad DownLoad;
  88 static struct SendPack SendPack;
  89 /* static struct StreamInfo     StreamInfo; */
  90 /* static char modemtable[RIO_PORTS]; */
  91 static struct SpecialRupCmd SpecialRupCmd;
  92 static struct PortParams PortParams;
  93 static struct portStats portStats;
  94
  95 static struct SubCmdStruct {
  96         ushort Host;
  97         ushort Rup;
  98         ushort Port;
  99         ushort Addr;
 100 } SubCmd;
 101
 102 struct PortTty {
 103         uint port;
 104         struct ttystatics Tty;
 105 };
 106
 107 static struct PortTty PortTty;
 108 typedef struct ttystatics TERMIO;
 109
 110 /*
 111 ** This table is used when the config.rio downloads bin code to the
 112 ** driver. We index the table using the product code, 0-F, and call
 113 ** the function pointed to by the entry, passing the information
 114 ** about the boot.
 115 ** The RIOBootCodeUNKNOWN entry is there to politely tell the calling
 116 ** process to bog off.
 117 */
 118 static int
 119  (*RIOBootTable[MAX_PRODUCT]) (struct rio_info *, struct DownLoad *) = {
 120                                         /* 0 */ RIOBootCodeHOST,
 121                                         /* Host Card */
 122                                         /* 1 */ RIOBootCodeRTA,
 123                                         /* RTA */
 124 };
 125
 126 #define drv_makedev(maj, min) ((((uint) maj & 0xff) << 8) | ((uint) min & 0xff))
 127
 128 static int copy_from_io(void __user *to, void __iomem *from, size_t size)
 129 {
 130         void *buf = kmalloc(size, GFP_KERNEL);
 131         int res = -ENOMEM;
 132         if (buf) {
 133                 rio_memcpy_fromio(buf, from, size);
 134                 res = copy_to_user(to, buf, size);
 135                 kfree(buf);
 136         }
 137         return res;
 138 }
 139
 140 int riocontrol(struct rio_info *p, dev_t dev, int cmd, unsigned long arg, int su)
 141 {
 142         uint Host;              /* leave me unsigned! */
 143         uint port;              /* and me! */
 144         struct Host *HostP;
 145         ushort loop;
 146         int Entry;
 147         struct Port *PortP;
 148         struct PKT __iomem *PacketP;
 149         int retval = 0;
 150         unsigned long flags;
 151         void __user *argp = (void __user *)arg;
 152
 153         func_enter();
 154
 155         /* Confuse the compiler to think that we've initialized these */
 156         Host = 0;
 157         PortP = NULL;
 158
 159         rio_dprintk(RIO_DEBUG_CTRL, "control ioctl cmd: 0x%x arg: %p\n", cmd, argp);
 160
 161         switch (cmd) {
 162                 /*
 163                  ** RIO_SET_TIMER
 164                  **
 165                  ** Change the value of the host card interrupt timer.
 166                  ** If the host card number is -1 then all host cards are changed
 167                  ** otherwise just the specified host card will be changed.
 168                  */
 169         case RIO_SET_TIMER:
 170                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_TIMER to %ldms\n", arg);
 171                 {
 172                         int host, value;
 173                         host = (arg >> 16) & 0x0000FFFF;
 174                         value = arg & 0x0000ffff;
 175                         if (host == -1) {
 176                                 for (host = 0; host < p->RIONumHosts; host++) {
 177                                         if (p->RIOHosts[host].Flags == RC_RUNNING) {
 178                                                 writew(value, &p->RIOHosts[host].ParmMapP->timer);
 179                                         }
 180                                 }
 181                         } else if (host >= p->RIONumHosts) {
 182                                 return -EINVAL;
 183                         } else {
 184                                 if (p->RIOHosts[host].Flags == RC_RUNNING) {
 185                                         writew(value, &p->RIOHosts[host].ParmMapP->timer);
 186                                 }
 187                         }
 188                 }
 189                 return 0;
 190
 191         case RIO_FOAD_RTA:
 192                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_FOAD_RTA\n");
 193                 return RIOCommandRta(p, arg, RIOFoadRta);
 194
 195         case RIO_ZOMBIE_RTA:
 196                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_ZOMBIE_RTA\n");
 197                 return RIOCommandRta(p, arg, RIOZombieRta);
 198
 199         case RIO_IDENTIFY_RTA:
 200                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_IDENTIFY_RTA\n");
 201                 return RIOIdentifyRta(p, argp);
 202
 203         case RIO_KILL_NEIGHBOUR:
 204                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_KILL_NEIGHBOUR\n");
 205                 return RIOKillNeighbour(p, argp);
 206
 207         case SPECIAL_RUP_CMD:
 208                 {
 209                         struct CmdBlk *CmdBlkP;
 210
 211                         rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD\n");
 212                         if (copy_from_user(&SpecialRupCmd, argp, sizeof(SpecialRupCmd))) {
 213                                 rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD copy failed\n");
 214                                 p->RIOError.Error = COPYIN_FAILED;
 215                                 return -EFAULT;
 216                         }
 217                         CmdBlkP = RIOGetCmdBlk();
 218                         if (!CmdBlkP) {
 219                                 rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD GetCmdBlk failed\n");
 220                                 return -ENXIO;
 221                         }
 222                         CmdBlkP->Packet = SpecialRupCmd.Packet;
 223                         if (SpecialRupCmd.Host >= p->RIONumHosts)
 224                                 SpecialRupCmd.Host = 0;
 225                         rio_dprintk(RIO_DEBUG_CTRL, "Queue special rup command for host %d rup %d\n", SpecialRupCmd.Host, SpecialRupCmd.RupNum);
 226                         if (RIOQueueCmdBlk(&p->RIOHosts[SpecialRupCmd.Host], SpecialRupCmd.RupNum, CmdBlkP) == RIO_FAIL) {
 227                                 printk(KERN_WARNING "rio: FAILED TO QUEUE SPECIAL RUP COMMAND\n");
 228                         }
 229                         return 0;
 230                 }
 231
 232         case RIO_DEBUG_MEM:
 233                 return -EPERM;
 234
 235         case RIO_ALL_MODEM:
 236                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_ALL_MODEM\n");
 237                 p->RIOError.Error = IOCTL_COMMAND_UNKNOWN;
 238                 return -EINVAL;
 239
 240         case RIO_GET_TABLE:
 241                 /*
 242                  ** Read the routing table from the device driver to user space
 243                  */
 244                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_TABLE\n");
 245
 246                 if ((retval = RIOApel(p)) != 0)
 247                         return retval;
 248
 249                 if (copy_to_user(argp, p->RIOConnectTable, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
 250                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_TABLE copy failed\n");
 251                         p->RIOError.Error = COPYOUT_FAILED;
 252                         return -EFAULT;
 253                 }
 254
 255                 {
 256                         int entry;
 257                         rio_dprintk(RIO_DEBUG_CTRL, "*****\nMAP ENTRIES\n");
 258                         for (entry = 0; entry < TOTAL_MAP_ENTRIES; entry++) {
 259                                 if ((p->RIOConnectTable[entry].ID == 0) && (p->RIOConnectTable[entry].HostUniqueNum == 0) && (p->RIOConnectTable[entry].RtaUniqueNum == 0))
 260                                         continue;
 261
 262                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.HostUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].HostUniqueNum);
 263                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.RtaUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].RtaUniqueNum);
 264                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.ID = 0x%x\n", entry, p->RIOConnectTable[entry].ID);
 265                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.ID2 = 0x%x\n", entry, p->RIOConnectTable[entry].ID2);
 266                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Flags = 0x%x\n", entry, (int) p->RIOConnectTable[entry].Flags);
 267                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.SysPort = 0x%x\n", entry, (int) p->RIOConnectTable[entry].SysPort);
 268                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[0].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[0].Unit);
 269                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[0].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[0].Link);
 270                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[1].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[1].Unit);
 271                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[1].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[1].Link);
 272                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[2].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[2].Unit);
 273                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[2].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[2].Link);
 274                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[3].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[3].Unit);
 275                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[4].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[3].Link);
 276                                 rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Name = %s\n", entry, p->RIOConnectTable[entry].Name);
 277                         }
 278                         rio_dprintk(RIO_DEBUG_CTRL, "*****\nEND MAP ENTRIES\n");
 279                 }
 280                 p->RIOQuickCheck = NOT_CHANGED; /* a table has been gotten */
 281                 return 0;
 282
 283         case RIO_PUT_TABLE:
 284                 /*
 285                  ** Write the routing table to the device driver from user space
 286                  */
 287                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE\n");
 288
 289                 if (!su) {
 290                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE !Root\n");
 291                         p->RIOError.Error = NOT_SUPER_USER;
 292                         return -EPERM;
 293                 }
 294                 if (copy_from_user(&p->RIOConnectTable[0], argp, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
 295                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE copy failed\n");
 296                         p->RIOError.Error = COPYIN_FAILED;
 297                         return -EFAULT;
 298                 }
 299 /*
 300 ***********************************
 301                                 {
 302                                         int entry;
 303                                         rio_dprint(RIO_DEBUG_CTRL,  ("*****\nMAP ENTRIES\n") );
 304                                         for ( entry=0; entry<TOTAL_MAP_ENTRIES; entry++ )
 305                                         {
 306                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.HostUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].HostUniqueNum ) );
 307                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.RtaUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].RtaUniqueNum ) );
 308                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.ID = 0x%x\n", entry, p->RIOConnectTable[entry].ID ) );
 309                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.ID2 = 0x%x\n", entry, p->RIOConnectTable[entry].ID2 ) );
 310                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Flags = 0x%x\n", entry, p->RIOConnectTable[entry].Flags ) );
 311                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.SysPort = 0x%x\n", entry, p->RIOConnectTable[entry].SysPort ) );
 312                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[0].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[0].Unit ) );
 313                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[0].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[0].Link ) );
 314                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[1].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[1].Unit ) );
 315                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[1].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[1].Link ) );
 316                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[2].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[2].Unit ) );
 317                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[2].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[2].Link ) );
 318                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[3].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[3].Unit ) );
 319                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Top[4].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[3].Link ) );
 320                                                 rio_dprint(RIO_DEBUG_CTRL,  ("Map entry %d.Name = %s\n", entry, p->RIOConnectTable[entry].Name ) );
 321                                         }
 322                                         rio_dprint(RIO_DEBUG_CTRL,  ("*****\nEND MAP ENTRIES\n") );
 323                                 }
 324 ***********************************
 325 */
 326                 return RIONewTable(p);
 327
 328         case RIO_GET_BINDINGS:
 329                 /*
 330                  ** Send bindings table, containing unique numbers of RTAs owned
 331                  ** by this system to user space
 332                  */
 333                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS\n");
 334
 335                 if (!su) {
 336                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS !Root\n");
 337                         p->RIOError.Error = NOT_SUPER_USER;
 338                         return -EPERM;
 339                 }
 340                 if (copy_to_user(argp, p->RIOBindTab, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
 341                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS copy failed\n");
 342                         p->RIOError.Error = COPYOUT_FAILED;
 343                         return -EFAULT;
 344                 }
 345                 return 0;
 346
 347         case RIO_PUT_BINDINGS:
 348                 /*
 349                  ** Receive a bindings table, containing unique numbers of RTAs owned
 350                  ** by this system
 351                  */
 352                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS\n");
 353
 354                 if (!su) {
 355                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS !Root\n");
 356                         p->RIOError.Error = NOT_SUPER_USER;
 357                         return -EPERM;
 358                 }
 359                 if (copy_from_user(&p->RIOBindTab[0], argp, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
 360                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS copy failed\n");
 361                         p->RIOError.Error = COPYIN_FAILED;
 362                         return -EFAULT;
 363                 }
 364                 return 0;
 365
 366         case RIO_BIND_RTA:
 367                 {
 368                         int EmptySlot = -1;
 369                         /*
 370                          ** Bind this RTA to host, so that it will be booted by
 371                          ** host in 'boot owned RTAs' mode.
 372                          */
 373                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_BIND_RTA\n");
 374
 375                         if (!su) {
 376                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_BIND_RTA !Root\n");
 377                                 p->RIOError.Error = NOT_SUPER_USER;
 378                                 return -EPERM;
 379                         }
 380                         for (Entry = 0; Entry < MAX_RTA_BINDINGS; Entry++) {
 381                                 if ((EmptySlot == -1) && (p->RIOBindTab[Entry] == 0L))
 382                                         EmptySlot = Entry;
 383                                 else if (p->RIOBindTab[Entry] == arg) {
 384                                         /*
 385                                          ** Already exists - delete
 386                                          */
 387                                         p->RIOBindTab[Entry] = 0L;
 388                                         rio_dprintk(RIO_DEBUG_CTRL, "Removing Rta %ld from p->RIOBindTab\n", arg);
 389                                         return 0;
 390                                 }
 391                         }
 392                         /*
 393                          ** Dosen't exist - add
 394                          */
 395                         if (EmptySlot != -1) {
 396                                 p->RIOBindTab[EmptySlot] = arg;
 397                                 rio_dprintk(RIO_DEBUG_CTRL, "Adding Rta %lx to p->RIOBindTab\n", arg);
 398                         } else {
 399                                 rio_dprintk(RIO_DEBUG_CTRL, "p->RIOBindTab full! - Rta %lx not added\n", arg);
 400                                 return -ENOMEM;
 401                         }
 402                         return 0;
 403                 }
 404
 405         case RIO_RESUME:
 406                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME\n");
 407                 port = arg;
 408                 if ((port < 0) || (port > 511)) {
 409                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Bad port number %d\n", port);
 410                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 411                         return -EINVAL;
 412                 }
 413                 PortP = p->RIOPortp[port];
 414                 if (!PortP->Mapped) {
 415                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Port %d not mapped\n", port);
 416                         p->RIOError.Error = PORT_NOT_MAPPED_INTO_SYSTEM;
 417                         return -EINVAL;
 418                 }
 419                 if (!(PortP->State & (RIO_LOPEN | RIO_MOPEN))) {
 420                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Port %d not open\n", port);
 421                         return -EINVAL;
 422                 }
 423
 424                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 425                 if (RIOPreemptiveCmd(p, (p->RIOPortp[port]), RIOC_RESUME) ==
 426                                 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, RIOC_CONFIG, PortP->State & RIO_MODEM,
 641                                 OK_TO_SLEEP);
 642                 return retval;
 643
 644         case RIO_SET_PORT_PARAMS:
 645                 rio_dprintk(RIO_DEBUG_CTRL, "Set port params\n");
 646                 if (copy_from_user(&PortParams, argp, sizeof(PortParams))) {
 647                         p->RIOError.Error = COPYIN_FAILED;
 648                         return -EFAULT;
 649                 }
 650                 if (PortParams.Port >= (ushort) RIO_PORTS) {
 651                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 652                         return -ENXIO;
 653                 }
 654                 PortP = (p->RIOPortp[PortParams.Port]);
 655                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 656                 PortP->Config = PortParams.Config;
 657                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 658                 return retval;
 659
 660         case RIO_GET_PORT_STATS:
 661                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_PORT_STATS\n");
 662                 if (copy_from_user(&portStats, argp, sizeof(struct portStats))) {
 663                         p->RIOError.Error = COPYIN_FAILED;
 664                         return -EFAULT;
 665                 }
 666                 if (portStats.port < 0 || portStats.port >= RIO_PORTS) {
 667                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 668                         return -ENXIO;
 669                 }
 670                 PortP = (p->RIOPortp[portStats.port]);
 671                 portStats.gather = PortP->statsGather;
 672                 portStats.txchars = PortP->txchars;
 673                 portStats.rxchars = PortP->rxchars;
 674                 portStats.opens = PortP->opens;
 675                 portStats.closes = PortP->closes;
 676                 portStats.ioctls = PortP->ioctls;
 677                 if (copy_to_user(argp, &portStats, sizeof(struct portStats))) {
 678                         p->RIOError.Error = COPYOUT_FAILED;
 679                         return -EFAULT;
 680                 }
 681                 return retval;
 682
 683         case RIO_RESET_PORT_STATS:
 684                 port = arg;
 685                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESET_PORT_STATS\n");
 686                 if (port >= RIO_PORTS) {
 687                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 688                         return -ENXIO;
 689                 }
 690                 PortP = (p->RIOPortp[port]);
 691                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 692                 PortP->txchars = 0;
 693                 PortP->rxchars = 0;
 694                 PortP->opens = 0;
 695                 PortP->closes = 0;
 696                 PortP->ioctls = 0;
 697                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 698                 return retval;
 699
 700         case RIO_GATHER_PORT_STATS:
 701                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GATHER_PORT_STATS\n");
 702                 if (copy_from_user(&portStats, argp, sizeof(struct portStats))) {
 703                         p->RIOError.Error = COPYIN_FAILED;
 704                         return -EFAULT;
 705                 }
 706                 if (portStats.port < 0 || portStats.port >= RIO_PORTS) {
 707                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 708                         return -ENXIO;
 709                 }
 710                 PortP = (p->RIOPortp[portStats.port]);
 711                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 712                 PortP->statsGather = portStats.gather;
 713                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 714                 return retval;
 715
 716         case RIO_READ_CONFIG:
 717                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_CONFIG\n");
 718                 if (copy_to_user(argp, &p->RIOConf, sizeof(struct Conf))) {
 719                         p->RIOError.Error = COPYOUT_FAILED;
 720                         return -EFAULT;
 721                 }
 722                 return retval;
 723
 724         case RIO_SET_CONFIG:
 725                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_CONFIG\n");
 726                 if (!su) {
 727                         p->RIOError.Error = NOT_SUPER_USER;
 728                         return -EPERM;
 729                 }
 730                 if (copy_from_user(&p->RIOConf, argp, sizeof(struct Conf))) {
 731                         p->RIOError.Error = COPYIN_FAILED;
 732                         return -EFAULT;
 733                 }
 734                 /*
 735                  ** move a few value around
 736                  */
 737                 for (Host = 0; Host < p->RIONumHosts; Host++)
 738                         if ((p->RIOHosts[Host].Flags & RUN_STATE) == RC_RUNNING)
 739                                 writew(p->RIOConf.Timer, &p->RIOHosts[Host].ParmMapP->timer);
 740                 return retval;
 741
 742         case RIO_START_POLLER:
 743                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_START_POLLER\n");
 744                 return -EINVAL;
 745
 746         case RIO_STOP_POLLER:
 747                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_STOP_POLLER\n");
 748                 if (!su) {
 749                         p->RIOError.Error = NOT_SUPER_USER;
 750                         return -EPERM;
 751                 }
 752                 p->RIOPolling = NOT_POLLING;
 753                 return retval;
 754
 755         case RIO_SETDEBUG:
 756         case RIO_GETDEBUG:
 757                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SETDEBUG/RIO_GETDEBUG\n");
 758                 if (copy_from_user(&DebugCtrl, argp, sizeof(DebugCtrl))) {
 759                         p->RIOError.Error = COPYIN_FAILED;
 760                         return -EFAULT;
 761                 }
 762                 if (DebugCtrl.SysPort == NO_PORT) {
 763                         if (cmd == RIO_SETDEBUG) {
 764                                 if (!su) {
 765                                         p->RIOError.Error = NOT_SUPER_USER;
 766                                         return -EPERM;
 767                                 }
 768                                 p->rio_debug = DebugCtrl.Debug;
 769                                 p->RIODebugWait = DebugCtrl.Wait;
 770                                 rio_dprintk(RIO_DEBUG_CTRL, "Set global debug to 0x%x set wait to 0x%x\n", p->rio_debug, p->RIODebugWait);
 771                         } else {
 772                                 rio_dprintk(RIO_DEBUG_CTRL, "Get global debug 0x%x wait 0x%x\n", p->rio_debug, p->RIODebugWait);
 773                                 DebugCtrl.Debug = p->rio_debug;
 774                                 DebugCtrl.Wait = p->RIODebugWait;
 775                                 if (copy_to_user(argp, &DebugCtrl, sizeof(DebugCtrl))) {
 776                                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n", DebugCtrl.SysPort);
 777                                         p->RIOError.Error = COPYOUT_FAILED;
 778                                         return -EFAULT;
 779                                 }
 780                         }
 781                 } else if (DebugCtrl.SysPort >= RIO_PORTS && DebugCtrl.SysPort != NO_PORT) {
 782                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n", DebugCtrl.SysPort);
 783                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 784                         return -ENXIO;
 785                 } else if (cmd == RIO_SETDEBUG) {
 786                         if (!su) {
 787                                 p->RIOError.Error = NOT_SUPER_USER;
 788                                 return -EPERM;
 789                         }
 790                         rio_spin_lock_irqsave(&PortP->portSem, flags);
 791                         p->RIOPortp[DebugCtrl.SysPort]->Debug = DebugCtrl.Debug;
 792                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 793                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SETDEBUG 0x%x\n", p->RIOPortp[DebugCtrl.SysPort]->Debug);
 794                 } else {
 795                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_GETDEBUG 0x%x\n", p->RIOPortp[DebugCtrl.SysPort]->Debug);
 796                         DebugCtrl.Debug = p->RIOPortp[DebugCtrl.SysPort]->Debug;
 797                         if (copy_to_user(argp, &DebugCtrl, sizeof(DebugCtrl))) {
 798                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_GETDEBUG: Bad copy to user space\n");
 799                                 p->RIOError.Error = COPYOUT_FAILED;
 800                                 return -EFAULT;
 801                         }
 802                 }
 803                 return retval;
 804
 805         case RIO_VERSID:
 806                 /*
 807                  ** Enquire about the release and version.
 808                  ** We return MAX_VERSION_LEN bytes, being a
 809                  ** textual null terminated string.
 810                  */
 811                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_VERSID\n");
 812                 if (copy_to_user(argp, RIOVersid(), sizeof(struct rioVersion))) {
 813                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_VERSID: Bad copy to user space (host=%d)\n", Host);
 814                         p->RIOError.Error = COPYOUT_FAILED;
 815                         return -EFAULT;
 816                 }
 817                 return retval;
 818
 819         case RIO_NUM_HOSTS:
 820                 /*
 821                  ** Enquire as to the number of hosts located
 822                  ** at init time.
 823                  */
 824                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_NUM_HOSTS\n");
 825                 if (copy_to_user(argp, &p->RIONumHosts, sizeof(p->RIONumHosts))) {
 826                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_NUM_HOSTS: Bad copy to user space\n");
 827                         p->RIOError.Error = COPYOUT_FAILED;
 828                         return -EFAULT;
 829                 }
 830                 return retval;
 831
 832         case RIO_HOST_FOAD:
 833                 /*
 834                  ** Kill host. This may not be in the final version...
 835                  */
 836                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD %ld\n", arg);
 837                 if (!su) {
 838                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD: Not super user\n");
 839                         p->RIOError.Error = NOT_SUPER_USER;
 840                         return -EPERM;
 841                 }
 842                 p->RIOHalted = 1;
 843                 p->RIOSystemUp = 0;
 844
 845                 for (Host = 0; Host < p->RIONumHosts; Host++) {
 846                         (void) RIOBoardTest(p->RIOHosts[Host].PaddrP, p->RIOHosts[Host].Caddr, p->RIOHosts[Host].Type, p->RIOHosts[Host].Slot);
 847                         memset(&p->RIOHosts[Host].Flags, 0, ((char *) &p->RIOHosts[Host].____end_marker____) - ((char *) &p->RIOHosts[Host].Flags));
 848                         p->RIOHosts[Host].Flags = RC_WAITING;
 849                 }
 850                 RIOFoadWakeup(p);
 851                 p->RIONumBootPkts = 0;
 852                 p->RIOBooting = 0;
 853                 printk("HEEEEELP!\n");
 854
 855                 for (loop = 0; loop < RIO_PORTS; loop++) {
 856                         spin_lock_init(&p->RIOPortp[loop]->portSem);
 857                         p->RIOPortp[loop]->InUse = NOT_INUSE;
 858                 }
 859
 860                 p->RIOSystemUp = 0;
 861                 return retval;
 862
 863         case RIO_DOWNLOAD:
 864                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD\n");
 865                 if (!su) {
 866                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Not super user\n");
 867                         p->RIOError.Error = NOT_SUPER_USER;
 868                         return -EPERM;
 869                 }
 870                 if (copy_from_user(&DownLoad, argp, sizeof(DownLoad))) {
 871                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Copy in from user space failed\n");
 872                         p->RIOError.Error = COPYIN_FAILED;
 873                         return -EFAULT;
 874                 }
 875                 rio_dprintk(RIO_DEBUG_CTRL, "Copied in download code for product code 0x%x\n", DownLoad.ProductCode);
 876
 877                 /*
 878                  ** It is important that the product code is an unsigned object!
 879                  */
 880                 if (DownLoad.ProductCode > MAX_PRODUCT) {
 881                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Bad product code %d passed\n", DownLoad.ProductCode);
 882                         p->RIOError.Error = NO_SUCH_PRODUCT;
 883                         return -ENXIO;
 884                 }
 885                 /*
 886                  ** do something!
 887                  */
 888                 retval = (*(RIOBootTable[DownLoad.ProductCode])) (p, &DownLoad);
 889                 /* <-- Panic */
 890                 p->RIOHalted = 0;
 891                 /*
 892                  ** and go back, content with a job well completed.
 893                  */
 894                 return retval;
 895
 896         case RIO_PARMS:
 897                 {
 898                         unsigned int host;
 899
 900                         if (copy_from_user(&host, argp, sizeof(host))) {
 901                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
 902                                 p->RIOError.Error = COPYIN_FAILED;
 903                                 return -EFAULT;
 904                         }
 905                         /*
 906                          ** Fetch the parmmap
 907                          */
 908                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_PARMS\n");
 909                         if (copy_from_io(argp, p->RIOHosts[host].ParmMapP, sizeof(PARM_MAP))) {
 910                                 p->RIOError.Error = COPYOUT_FAILED;
 911                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_PARMS: Copy out to user space failed\n");
 912                                 return -EFAULT;
 913                         }
 914                 }
 915                 return retval;
 916
 917         case RIO_HOST_REQ:
 918                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ\n");
 919                 if (copy_from_user(&HostReq, argp, sizeof(HostReq))) {
 920                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
 921                         p->RIOError.Error = COPYIN_FAILED;
 922                         return -EFAULT;
 923                 }
 924                 if (HostReq.HostNum >= p->RIONumHosts) {
 925                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
 926                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Illegal host number %d\n", HostReq.HostNum);
 927                         return -ENXIO;
 928                 }
 929                 rio_dprintk(RIO_DEBUG_CTRL, "Request for host %d\n", HostReq.HostNum);
 930
 931                 if (copy_to_user(HostReq.HostP, &p->RIOHosts[HostReq.HostNum], sizeof(struct Host))) {
 932                         p->RIOError.Error = COPYOUT_FAILED;
 933                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Bad copy to user space\n");
 934                         return -EFAULT;
 935                 }
 936                 return retval;
 937
 938         case RIO_HOST_DPRAM:
 939                 rio_dprintk(RIO_DEBUG_CTRL, "Request for DPRAM\n");
 940                 if (copy_from_user(&HostDpRam, argp, sizeof(HostDpRam))) {
 941                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Copy in from user space failed\n");
 942                         p->RIOError.Error = COPYIN_FAILED;
 943                         return -EFAULT;
 944                 }
 945                 if (HostDpRam.HostNum >= p->RIONumHosts) {
 946                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
 947                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Illegal host number %d\n", HostDpRam.HostNum);
 948                         return -ENXIO;
 949                 }
 950                 rio_dprintk(RIO_DEBUG_CTRL, "Request for host %d\n", HostDpRam.HostNum);
 951
 952                 if (p->RIOHosts[HostDpRam.HostNum].Type == RIO_PCI) {
 953                         int off;
 954                         /* It's hardware like this that really gets on my tits. */
 955                         static unsigned char copy[sizeof(struct DpRam)];
 956                         for (off = 0; off < sizeof(struct DpRam); off++)
 957                                 copy[off] = readb(p->RIOHosts[HostDpRam.HostNum].Caddr + off);
 958                         if (copy_to_user(HostDpRam.DpRamP, copy, sizeof(struct DpRam))) {
 959                                 p->RIOError.Error = COPYOUT_FAILED;
 960                                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
 961                                 return -EFAULT;
 962                         }
 963                 } else if (copy_from_io(HostDpRam.DpRamP, p->RIOHosts[HostDpRam.HostNum].Caddr, sizeof(struct DpRam))) {
 964                         p->RIOError.Error = COPYOUT_FAILED;
 965                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
 966                         return -EFAULT;
 967                 }
 968                 return retval;
 969
 970         case RIO_SET_BUSY:
 971                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY\n");
 972                 if (arg > 511) {
 973                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY: Bad port number %ld\n", arg);
 974                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 975                         return -EINVAL;
 976                 }
 977                 rio_spin_lock_irqsave(&PortP->portSem, flags);
 978                 p->RIOPortp[arg]->State |= RIO_BUSY;
 979                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 980                 return retval;
 981
 982         case RIO_HOST_PORT:
 983                 /*
 984                  ** The daemon want port information
 985                  ** (probably for debug reasons)
 986                  */
 987                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT\n");
 988                 if (copy_from_user(&PortReq, argp, sizeof(PortReq))) {
 989                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Copy in from user space failed\n");
 990                         p->RIOError.Error = COPYIN_FAILED;
 991                         return -EFAULT;
 992                 }
 993
 994                 if (PortReq.SysPort >= RIO_PORTS) {     /* SysPort is unsigned */
 995                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Illegal port number %d\n", PortReq.SysPort);
 996                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
 997                         return -ENXIO;
 998                 }
 999                 rio_dprintk(RIO_DEBUG_CTRL, "Request for port %d\n", PortReq.SysPort);
1000                 if (copy_to_user(PortReq.PortP, p->RIOPortp[PortReq.SysPort], sizeof(struct Port))) {
1001                         p->RIOError.Error = COPYOUT_FAILED;
1002                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Bad copy to user space\n");
1003                         return -EFAULT;
1004                 }
1005                 return retval;
1006
1007         case RIO_HOST_RUP:
1008                 /*
1009                  ** The daemon want rup information
1010                  ** (probably for debug reasons)
1011                  */
1012                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP\n");
1013                 if (copy_from_user(&RupReq, argp, sizeof(RupReq))) {
1014                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Copy in from user space failed\n");
1015                         p->RIOError.Error = COPYIN_FAILED;
1016                         return -EFAULT;
1017                 }
1018                 if (RupReq.HostNum >= p->RIONumHosts) { /* host is unsigned */
1019                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Illegal host number %d\n", RupReq.HostNum);
1020                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
1021                         return -ENXIO;
1022                 }
1023                 if (RupReq.RupNum >= MAX_RUP + LINKS_PER_UNIT) {        /* eek! */
1024                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Illegal rup number %d\n", RupReq.RupNum);
1025                         p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
1026                         return -EINVAL;
1027                 }
1028                 HostP = &p->RIOHosts[RupReq.HostNum];
1029
1030                 if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
1031                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Host %d not running\n", RupReq.HostNum);
1032                         p->RIOError.Error = HOST_NOT_RUNNING;
1033                         return -EIO;
1034                 }
1035                 rio_dprintk(RIO_DEBUG_CTRL, "Request for rup %d from host %d\n", RupReq.RupNum, RupReq.HostNum);
1036
1037                 if (copy_from_io(RupReq.RupP, HostP->UnixRups[RupReq.RupNum].RupP, sizeof(struct RUP))) {
1038                         p->RIOError.Error = COPYOUT_FAILED;
1039                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Bad copy to user space\n");
1040                         return -EFAULT;
1041                 }
1042                 return retval;
1043
1044         case RIO_HOST_LPB:
1045                 /*
1046                  ** The daemon want lpb information
1047                  ** (probably for debug reasons)
1048                  */
1049                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB\n");
1050                 if (copy_from_user(&LpbReq, argp, sizeof(LpbReq))) {
1051                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy from user space\n");
1052                         p->RIOError.Error = COPYIN_FAILED;
1053                         return -EFAULT;
1054                 }
1055                 if (LpbReq.Host >= p->RIONumHosts) {    /* host is unsigned */
1056                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Illegal host number %d\n", LpbReq.Host);
1057                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
1058                         return -ENXIO;
1059                 }
1060                 if (LpbReq.Link >= LINKS_PER_UNIT) {    /* eek! */
1061                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Illegal link number %d\n", LpbReq.Link);
1062                         p->RIOError.Error = LINK_NUMBER_OUT_OF_RANGE;
1063                         return -EINVAL;
1064                 }
1065                 HostP = &p->RIOHosts[LpbReq.Host];
1066
1067                 if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
1068                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Host %d not running\n", LpbReq.Host);
1069                         p->RIOError.Error = HOST_NOT_RUNNING;
1070                         return -EIO;
1071                 }
1072                 rio_dprintk(RIO_DEBUG_CTRL, "Request for lpb %d from host %d\n", LpbReq.Link, LpbReq.Host);
1073
1074                 if (copy_from_io(LpbReq.LpbP, &HostP->LinkStrP[LpbReq.Link], sizeof(struct LPB))) {
1075                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy to user space\n");
1076                         p->RIOError.Error = COPYOUT_FAILED;
1077                         return -EFAULT;
1078                 }
1079                 return retval;
1080
1081                 /*
1082                  ** Here 3 IOCTL's that allow us to change the way in which
1083                  ** rio logs errors. send them just to syslog or send them
1084                  ** to both syslog and console or send them to just the console.
1085                  **
1086                  ** See RioStrBuf() in util.c for the other half.
1087                  */
1088         case RIO_SYSLOG_ONLY:
1089                 p->RIOPrintLogState = PRINT_TO_LOG;     /* Just syslog */
1090                 return 0;
1091
1092         case RIO_SYSLOG_CONS:
1093                 p->RIOPrintLogState = PRINT_TO_LOG_CONS;        /* syslog and console */
1094                 return 0;
1095
1096         case RIO_CONS_ONLY:
1097                 p->RIOPrintLogState = PRINT_TO_CONS;    /* Just console */
1098                 return 0;
1099
1100         case RIO_SIGNALS_ON:
1101                 if (p->RIOSignalProcess) {
1102                         p->RIOError.Error = SIGNALS_ALREADY_SET;
1103                         return -EBUSY;
1104                 }
1105                 /* FIXME: PID tracking */
1106                 p->RIOSignalProcess = current->pid;
1107                 p->RIOPrintDisabled = DONT_PRINT;
1108                 return retval;
1109
1110         case RIO_SIGNALS_OFF:
1111                 if (p->RIOSignalProcess != current->pid) {
1112                         p->RIOError.Error = NOT_RECEIVING_PROCESS;
1113                         return -EPERM;
1114                 }
1115                 rio_dprintk(RIO_DEBUG_CTRL, "Clear signal process to zero\n");
1116                 p->RIOSignalProcess = 0;
1117                 return retval;
1118
1119         case RIO_SET_BYTE_MODE:
1120                 for (Host = 0; Host < p->RIONumHosts; Host++)
1121                         if (p->RIOHosts[Host].Type == RIO_AT)
1122                                 p->RIOHosts[Host].Mode &= ~WORD_OPERATION;
1123                 return retval;
1124
1125         case RIO_SET_WORD_MODE:
1126                 for (Host = 0; Host < p->RIONumHosts; Host++)
1127                         if (p->RIOHosts[Host].Type == RIO_AT)
1128                                 p->RIOHosts[Host].Mode |= WORD_OPERATION;
1129                 return retval;
1130
1131         case RIO_SET_FAST_BUS:
1132                 for (Host = 0; Host < p->RIONumHosts; Host++)
1133                         if (p->RIOHosts[Host].Type == RIO_AT)
1134                                 p->RIOHosts[Host].Mode |= FAST_AT_BUS;
1135                 return retval;
1136
1137         case RIO_SET_SLOW_BUS:
1138                 for (Host = 0; Host < p->RIONumHosts; Host++)
1139                         if (p->RIOHosts[Host].Type == RIO_AT)
1140                                 p->RIOHosts[Host].Mode &= ~FAST_AT_BUS;
1141                 return retval;
1142
1143         case RIO_MAP_B50_TO_50:
1144         case RIO_MAP_B50_TO_57600:
1145         case RIO_MAP_B110_TO_110:
1146         case RIO_MAP_B110_TO_115200:
1147                 rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping\n");
1148                 port = arg;
1149                 if (port < 0 || port > 511) {
1150                         rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", port);
1151                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
1152                         return -EINVAL;
1153                 }
1154                 rio_spin_lock_irqsave(&PortP->portSem, flags);
1155                 switch (cmd) {
1156                 case RIO_MAP_B50_TO_50:
1157                         p->RIOPortp[port]->Config |= RIO_MAP_50_TO_50;
1158                         break;
1159                 case RIO_MAP_B50_TO_57600:
1160                         p->RIOPortp[port]->Config &= ~RIO_MAP_50_TO_50;
1161                         break;
1162                 case RIO_MAP_B110_TO_110:
1163                         p->RIOPortp[port]->Config |= RIO_MAP_110_TO_110;
1164                         break;
1165                 case RIO_MAP_B110_TO_115200:
1166                         p->RIOPortp[port]->Config &= ~RIO_MAP_110_TO_110;
1167                         break;
1168                 }
1169                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1170                 return retval;
1171
1172         case RIO_STREAM_INFO:
1173                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_STREAM_INFO\n");
1174                 return -EINVAL;
1175
1176         case RIO_SEND_PACKET:
1177                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_SEND_PACKET\n");
1178                 if (copy_from_user(&SendPack, argp, sizeof(SendPack))) {
1179                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_SEND_PACKET: Bad copy from user space\n");
1180                         p->RIOError.Error = COPYIN_FAILED;
1181                         return -EFAULT;
1182                 }
1183                 if (SendPack.PortNum >= 128) {
1184                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
1185                         return -ENXIO;
1186                 }
1187
1188                 PortP = p->RIOPortp[SendPack.PortNum];
1189                 rio_spin_lock_irqsave(&PortP->portSem, flags);
1190
1191                 if (!can_add_transmit(&PacketP, PortP)) {
1192                         p->RIOError.Error = UNIT_IS_IN_USE;
1193                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1194                         return -ENOSPC;
1195                 }
1196
1197                 for (loop = 0; loop < (ushort) (SendPack.Len & 127); loop++)
1198                         writeb(SendPack.Data[loop], &PacketP->data[loop]);
1199
1200                 writeb(SendPack.Len, &PacketP->len);
1201
1202                 add_transmit(PortP);
1203                 /*
1204                  ** Count characters transmitted for port statistics reporting
1205                  */
1206                 if (PortP->statsGather)
1207                         PortP->txchars += (SendPack.Len & 127);
1208                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1209                 return retval;
1210
1211         case RIO_NO_MESG:
1212                 if (su)
1213                         p->RIONoMessage = 1;
1214                 return su ? 0 : -EPERM;
1215
1216         case RIO_MESG:
1217                 if (su)
1218                         p->RIONoMessage = 0;
1219                 return su ? 0 : -EPERM;
1220
1221         case RIO_WHAT_MESG:
1222                 if (copy_to_user(argp, &p->RIONoMessage, sizeof(p->RIONoMessage))) {
1223                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_WHAT_MESG: Bad copy to user space\n");
1224                         p->RIOError.Error = COPYOUT_FAILED;
1225                         return -EFAULT;
1226                 }
1227                 return 0;
1228
1229         case RIO_MEM_DUMP:
1230                 if (copy_from_user(&SubCmd, argp, sizeof(struct SubCmdStruct))) {
1231                         p->RIOError.Error = COPYIN_FAILED;
1232                         return -EFAULT;
1233                 }
1234                 rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP host %d rup %d addr %x\n", SubCmd.Host, SubCmd.Rup, SubCmd.Addr);
1235
1236                 if (SubCmd.Rup >= MAX_RUP + LINKS_PER_UNIT) {
1237                         p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
1238                         return -EINVAL;
1239                 }
1240
1241                 if (SubCmd.Host >= p->RIONumHosts) {
1242                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
1243                         return -EINVAL;
1244                 }
1245
1246                 port = p->RIOHosts[SubCmd.Host].UnixRups[SubCmd.Rup].BaseSysPort;
1247
1248                 PortP = p->RIOPortp[port];
1249
1250                 rio_spin_lock_irqsave(&PortP->portSem, flags);
1251
1252                 if (RIOPreemptiveCmd(p, PortP, RIOC_MEMDUMP) == RIO_FAIL) {
1253                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP failed\n");
1254                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1255                         return -EBUSY;
1256                 } else
1257                         PortP->State |= RIO_BUSY;
1258
1259                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1260                 if (copy_to_user(argp, p->RIOMemDump, MEMDUMP_SIZE)) {
1261                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP copy failed\n");
1262                         p->RIOError.Error = COPYOUT_FAILED;
1263                         return -EFAULT;
1264                 }
1265                 return 0;
1266
1267         case RIO_TICK:
1268                 if (arg >= p->RIONumHosts)
1269                         return -EINVAL;
1270                 rio_dprintk(RIO_DEBUG_CTRL, "Set interrupt for host %ld\n", arg);
1271                 writeb(0xFF, &p->RIOHosts[arg].SetInt);
1272                 return 0;
1273
1274         case RIO_TOCK:
1275                 if (arg >= p->RIONumHosts)
1276                         return -EINVAL;
1277                 rio_dprintk(RIO_DEBUG_CTRL, "Clear interrupt for host %ld\n", arg);
1278                 writeb(0xFF, &p->RIOHosts[arg].ResetInt);
1279                 return 0;
1280
1281         case RIO_READ_CHECK:
1282                 /* Check reads for pkts with data[0] the same */
1283                 p->RIOReadCheck = !p->RIOReadCheck;
1284                 if (copy_to_user(argp, &p->RIOReadCheck, sizeof(unsigned int))) {
1285                         p->RIOError.Error = COPYOUT_FAILED;
1286                         return -EFAULT;
1287                 }
1288                 return 0;
1289
1290         case RIO_READ_REGISTER:
1291                 if (copy_from_user(&SubCmd, argp, sizeof(struct SubCmdStruct))) {
1292                         p->RIOError.Error = COPYIN_FAILED;
1293                         return -EFAULT;
1294                 }
1295                 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);
1296
1297                 if (SubCmd.Port > 511) {
1298                         rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", SubCmd.Port);
1299                         p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
1300                         return -EINVAL;
1301                 }
1302
1303                 if (SubCmd.Rup >= MAX_RUP + LINKS_PER_UNIT) {
1304                         p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
1305                         return -EINVAL;
1306                 }
1307
1308                 if (SubCmd.Host >= p->RIONumHosts) {
1309                         p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
1310                         return -EINVAL;
1311                 }
1312
1313                 port = p->RIOHosts[SubCmd.Host].UnixRups[SubCmd.Rup].BaseSysPort + SubCmd.Port;
1314                 PortP = p->RIOPortp[port];
1315
1316                 rio_spin_lock_irqsave(&PortP->portSem, flags);
1317
1318                 if (RIOPreemptiveCmd(p, PortP, RIOC_READ_REGISTER) ==
1319                                 RIO_FAIL) {
1320                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_REGISTER failed\n");
1321                         rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1322                         return -EBUSY;
1323                 } else
1324                         PortP->State |= RIO_BUSY;
1325
1326                 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
1327                 if (copy_to_user(argp, &p->CdRegister, sizeof(unsigned int))) {
1328                         rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_REGISTER copy failed\n");
1329                         p->RIOError.Error = COPYOUT_FAILED;
1330                         return -EFAULT;
1331                 }
1332                 return 0;
1333                 /*
1334                  ** rio_make_dev: given port number (0-511) ORed with port type
1335                  ** (RIO_DEV_DIRECT, RIO_DEV_MODEM, RIO_DEV_XPRINT) return dev_t
1336                  ** value to pass to mknod to create the correct device node.
1337                  */
1338         case RIO_MAKE_DEV:
1339                 {
1340                         unsigned int port = arg & RIO_MODEM_MASK;
1341                         unsigned int ret;
1342
1343                         switch (arg & RIO_DEV_MASK) {
1344                         case RIO_DEV_DIRECT:
1345                                 ret = drv_makedev(MAJOR(dev), port);
1346                                 rio_dprintk(RIO_DEBUG_CTRL, "Makedev direct 0x%x is 0x%x\n", port, ret);
1347                                 return ret;
1348                         case RIO_DEV_MODEM:
1349                                 ret = drv_makedev(MAJOR(dev), (port | RIO_MODEM_BIT));
1350                                 rio_dprintk(RIO_DEBUG_CTRL, "Makedev modem 0x%x is 0x%x\n", port, ret);
1351                                 return ret;
1352                         case RIO_DEV_XPRINT:
1353                                 ret = drv_makedev(MAJOR(dev), port);
1354                                 rio_dprintk(RIO_DEBUG_CTRL, "Makedev printer 0x%x is 0x%x\n", port, ret);
1355                                 return ret;
1356                         }
1357                         rio_dprintk(RIO_DEBUG_CTRL, "MAKE Device is called\n");
1358                         return -EINVAL;
1359                 }
1360                 /*
1361                  ** rio_minor: given a dev_t from a stat() call, return
1362                  ** the port number (0-511) ORed with the port type
1363                  ** ( RIO_DEV_DIRECT, RIO_DEV_MODEM, RIO_DEV_XPRINT )
1364                  */
1365         case RIO_MINOR:
1366                 {
1367                         dev_t dv;
1368                         int mino;
1369                         unsigned long ret;
1370
1371                         dv = (dev_t) (arg);
1372                         mino = RIO_UNMODEM(dv);
1373
1374                         if (RIO_ISMODEM(dv)) {
1375                                 rio_dprintk(RIO_DEBUG_CTRL, "Minor for device 0x%x: modem %d\n", dv, mino);
1376                                 ret = mino | RIO_DEV_MODEM;
1377                         } else {
1378                                 rio_dprintk(RIO_DEBUG_CTRL, "Minor for device 0x%x: direct %d\n", dv, mino);
1379                                 ret = mino | RIO_DEV_DIRECT;
1380                         }
1381                         return ret;
1382                 }
1383         }
1384         rio_dprintk(RIO_DEBUG_CTRL, "INVALID DAEMON IOCTL 0x%x\n", cmd);
1385         p->RIOError.Error = IOCTL_COMMAND_UNKNOWN;
1386
1387         func_exit();
1388         return -EINVAL;
1389 }
1390
1391 /*
1392 ** Pre-emptive commands go on RUPs and are only one byte long.
1393 */
1394 int RIOPreemptiveCmd(struct rio_info *p, struct Port *PortP, u8 Cmd)
1395 {
1396         struct CmdBlk *CmdBlkP;
1397         struct PktCmd_M *PktCmdP;
1398         int Ret;
1399         ushort rup;
1400         int port;
1401
1402         if (PortP->State & RIO_DELETED) {
1403                 rio_dprintk(RIO_DEBUG_CTRL, "Preemptive command to deleted RTA ignored\n");
1404                 return RIO_FAIL;
1405         }
1406
1407         if ((PortP->InUse == (typeof(PortP->InUse))-1) ||
1408                         !(CmdBlkP = RIOGetCmdBlk())) {
1409                 rio_dprintk(RIO_DEBUG_CTRL, "Cannot allocate command block "
1410                         "for command %d on port %d\n", Cmd, PortP->PortNum);
1411                 return RIO_FAIL;
1412         }
1413
1414         rio_dprintk(RIO_DEBUG_CTRL, "Command blk %p - InUse now %d\n",
1415                         CmdBlkP, PortP->InUse);
1416
1417         PktCmdP = (struct PktCmd_M *)&CmdBlkP->Packet.data[0];
1418
1419         CmdBlkP->Packet.src_unit = 0;
1420         if (PortP->SecondBlock)
1421                 rup = PortP->ID2;
1422         else
1423                 rup = PortP->RupNum;
1424         CmdBlkP->Packet.dest_unit = rup;
1425         CmdBlkP->Packet.src_port = COMMAND_RUP;
1426         CmdBlkP->Packet.dest_port = COMMAND_RUP;
1427         CmdBlkP->Packet.len = PKT_CMD_BIT | 2;
1428         CmdBlkP->PostFuncP = RIOUnUse;
1429         CmdBlkP->PostArg = (unsigned long) PortP;
1430         PktCmdP->Command = Cmd;
1431         port = PortP->HostPort % (ushort) PORTS_PER_RTA;
1432         /*
1433          ** Index ports 8-15 for 2nd block of 16 port RTA.
1434          */
1435         if (PortP->SecondBlock)
1436                 port += (ushort) PORTS_PER_RTA;
1437         PktCmdP->PhbNum = port;
1438
1439         switch (Cmd) {
1440         case RIOC_MEMDUMP:
1441                 rio_dprintk(RIO_DEBUG_CTRL, "Queue MEMDUMP command blk %p "
1442                                 "(addr 0x%x)\n", CmdBlkP, (int) SubCmd.Addr);
1443                 PktCmdP->SubCommand = RIOC_MEMDUMP;
1444                 PktCmdP->SubAddr = SubCmd.Addr;
1445                 break;
1446         case RIOC_FCLOSE:
1447                 rio_dprintk(RIO_DEBUG_CTRL, "Queue FCLOSE command blk %p\n",
1448                                 CmdBlkP);
1449                 break;
1450         case RIOC_READ_REGISTER:
1451                 rio_dprintk(RIO_DEBUG_CTRL, "Queue READ_REGISTER (0x%x) "
1452                                 "command blk %p\n", (int) SubCmd.Addr, CmdBlkP);
1453                 PktCmdP->SubCommand = RIOC_READ_REGISTER;
1454                 PktCmdP->SubAddr = SubCmd.Addr;
1455                 break;
1456         case RIOC_RESUME:
1457                 rio_dprintk(RIO_DEBUG_CTRL, "Queue RESUME command blk %p\n",
1458                                 CmdBlkP);
1459                 break;
1460         case RIOC_RFLUSH:
1461                 rio_dprintk(RIO_DEBUG_CTRL, "Queue RFLUSH command blk %p\n",
1462                                 CmdBlkP);
1463                 CmdBlkP->PostFuncP = RIORFlushEnable;
1464                 break;
1465         case RIOC_SUSPEND:
1466                 rio_dprintk(RIO_DEBUG_CTRL, "Queue SUSPEND command blk %p\n",
1467                                 CmdBlkP);
1468                 break;
1469
1470         case RIOC_MGET:
1471                 rio_dprintk(RIO_DEBUG_CTRL, "Queue MGET command blk %p\n",
1472                                 CmdBlkP);
1473                 break;
1474
1475         case RIOC_MSET:
1476         case RIOC_MBIC:
1477         case RIOC_MBIS:
1478                 CmdBlkP->Packet.data[4] = (char) PortP->ModemLines;
1479                 rio_dprintk(RIO_DEBUG_CTRL, "Queue MSET/MBIC/MBIS command "
1480                                 "blk %p\n", CmdBlkP);
1481                 break;
1482
1483         case RIOC_WFLUSH:
1484                 /*
1485                  ** If we have queued up the maximum number of Write flushes
1486                  ** allowed then we should not bother sending any more to the
1487                  ** RTA.
1488                  */
1489                 if (PortP->WflushFlag == (typeof(PortP->WflushFlag))-1) {
1490                         rio_dprintk(RIO_DEBUG_CTRL, "Trashed WFLUSH, "
1491                                         "WflushFlag about to wrap!");
1492                         RIOFreeCmdBlk(CmdBlkP);
1493                         return (RIO_FAIL);
1494                 } else {
1495                         rio_dprintk(RIO_DEBUG_CTRL, "Queue WFLUSH command "
1496                                         "blk %p\n", CmdBlkP);
1497                         CmdBlkP->PostFuncP = RIOWFlushMark;
1498                 }
1499                 break;
1500         }
1501
1502         PortP->InUse++;
1503
1504         Ret = RIOQueueCmdBlk(PortP->HostP, rup, CmdBlkP);
1505
1506         return Ret;
1507 }