sys/net/i4b/layer4/i4b_i4bdrv.c

   1 /*
   2  * Copyright (c) 1997, 2001 Hellmuth Michaelis. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23  * SUCH DAMAGE.
  24  *
  25  *---------------------------------------------------------------------------
  26  *
  27  *      i4b_i4bdrv.c - i4b userland interface driver
  28  *      --------------------------------------------
  29  *
  30  * $FreeBSD: src/sys/i4b/layer4/i4b_i4bdrv.c,v 1.11.2.5 2001/12/16 15:12:59 hm Exp $
  31  * $DragonFly: src/sys/net/i4b/layer4/i4b_i4bdrv.c,v 1.20 2008/01/06 16:55:52 swildner Exp $
  32  *
  33  *      last edit-date: [Sat Aug 11 18:08:10 2001]
  34  *
  35  *---------------------------------------------------------------------------*/
  36
  37 #include "use_i4b.h"
  38 #include "use_i4bipr.h"
  39 #include "use_i4btel.h"
  40
  41 #if NI4B > 1
  42 #error "only 1 (one) i4b device possible!"
  43 #endif
  44
  45 #if NI4B > 0
  46
  47 #include <sys/param.h>
  48
  49 #include <sys/malloc.h>
  50 #include <sys/uio.h>
  51 #include <sys/kernel.h>
  52 #include <sys/systm.h>
  53 #include <sys/conf.h>
  54 #include <sys/device.h>
  55 #include <sys/mbuf.h>
  56 #include <sys/socket.h>
  57 #include <sys/thread2.h>
  58 #include <sys/selinfo.h>
  59
  60 #include <net/if.h>
  61
  62 #include "use_i4bing.h"
  63 #include "use_i4bisppp.h"
  64
  65 #include <net/i4b/include/machine/i4b_debug.h>
  66 #include <net/i4b/include/machine/i4b_ioctl.h>
  67 #include <net/i4b/include/machine/i4b_cause.h>
  68
  69 #include "../include/i4b_l3l4.h"
  70 #include "../include/i4b_mbuf.h"
  71 #include "../include/i4b_global.h"
  72
  73 #include "i4b_l4.h"
  74
  75 #include <sys/poll.h>
  76
  77 struct selinfo select_rd_info;
  78
  79 static struct ifqueue i4b_rdqueue;
  80 static int openflag = 0;
  81 static int selflag = 0;
  82 static int readflag = 0;
  83
  84 #define PDEVSTATIC      static
  85
  86 PDEVSTATIC      d_open_t        i4bopen;
  87 PDEVSTATIC      d_close_t       i4bclose;
  88 PDEVSTATIC      d_read_t        i4bread;
  89 PDEVSTATIC      d_ioctl_t       i4bioctl;
  90
  91 PDEVSTATIC      d_poll_t        i4bpoll;
  92 #define POLLFIELD               i4bpoll
  93
  94 #define CDEV_MAJOR 60
  95
  96 static struct dev_ops i4b_ops = {
  97         { "i4b", CDEV_MAJOR, 0 },
  98         .d_open =       i4bopen,
  99         .d_close =      i4bclose,
 100         .d_read =       i4bread,
 101         .d_ioctl =      i4bioctl,
 102         .d_poll =       POLLFIELD,
 103 };
 104
 105 PDEVSTATIC void i4battach(void *);
 106 PSEUDO_SET(i4battach, i4b_i4bdrv);
 107
 108 /*---------------------------------------------------------------------------*
 109  *      interface attach routine
 110  *---------------------------------------------------------------------------*/
 111 PDEVSTATIC void
 112 i4battach(void *dummy)
 113 {
 114         kprintf("i4b: ISDN call control device attached\n");
 115
 116         i4b_rdqueue.ifq_maxlen = IFQ_MAXLEN;
 117
 118         make_dev(&i4b_ops, 0, UID_ROOT, GID_WHEEL, 0600, "i4b");
 119 }
 120
 121 /*---------------------------------------------------------------------------*
 122  *      i4bopen - device driver open routine
 123  *---------------------------------------------------------------------------*/
 124 PDEVSTATIC int
 125 i4bopen(struct dev_open_args *ap)
 126 {
 127         cdev_t dev = ap->a_head.a_dev;
 128
 129         if (minor(dev))
 130                 return(ENXIO);
 131         if (openflag)
 132                 return(EBUSY);
 133         crit_enter();
 134         openflag = 1;
 135         i4b_l4_daemon_attached();
 136         crit_exit();
 137
 138         return(0);
 139 }
 140
 141 /*---------------------------------------------------------------------------*
 142  *      i4bclose - device driver close routine
 143  *---------------------------------------------------------------------------*/
 144 PDEVSTATIC int
 145 i4bclose(struct dev_close_args *ap)
 146 {
 147         crit_enter();
 148         openflag = 0;
 149         i4b_l4_daemon_detached();
 150         i4b_Dcleanifq(&i4b_rdqueue);
 151         crit_exit();
 152         return(0);
 153 }
 154
 155 /*---------------------------------------------------------------------------*
 156  *      i4bread - device driver read routine
 157  *---------------------------------------------------------------------------*/
 158 PDEVSTATIC int
 159 i4bread(struct dev_read_args *ap)
 160 {
 161         cdev_t dev = ap->a_head.a_dev;
 162         struct mbuf *m;
 163         int error = 0;
 164
 165         if (minor(dev))
 166                 return(ENODEV);
 167
 168         crit_enter();
 169         while(IF_QEMPTY(&i4b_rdqueue))
 170         {
 171                 readflag = 1;
 172                 error = tsleep((caddr_t) &i4b_rdqueue, PCATCH, "bird", 0);
 173                 if (error != 0) {
 174                         crit_exit();
 175                         return error;
 176                 }
 177         }
 178
 179         IF_DEQUEUE(&i4b_rdqueue, m);
 180
 181         crit_exit();
 182
 183         if(m && m->m_len)
 184                 error = uiomove(m->m_data, m->m_len, ap->a_uio);
 185         else
 186                 error = EIO;
 187
 188         if(m)
 189                 i4b_Dfreembuf(m);
 190
 191         return(error);
 192 }
 193
 194 /*---------------------------------------------------------------------------*
 195  *      i4bioctl - device driver ioctl routine
 196  *---------------------------------------------------------------------------*/
 197 PDEVSTATIC int
 198 i4bioctl(struct dev_ioctl_args *ap)
 199 {
 200         cdev_t dev = ap->a_head.a_dev;
 201         caddr_t data = ap->a_data;
 202         call_desc_t *cd;
 203         int error = 0;
 204
 205         if(minor(dev))
 206                 return(ENODEV);
 207
 208         switch(ap->a_cmd)
 209         {
 210                 /* cdid request, reserve cd and return cdid */
 211
 212                 case I4B_CDID_REQ:
 213                 {
 214                         msg_cdid_req_t *mir;
 215                         mir = (msg_cdid_req_t *)data;
 216                         cd = reserve_cd();
 217                         mir->cdid = cd->cdid;
 218                         break;
 219                 }
 220
 221                 /* connect request, dial out to remote */
 222
 223                 case I4B_CONNECT_REQ:
 224                 {
 225                         msg_connect_req_t *mcr;
 226                         mcr = (msg_connect_req_t *)data;        /* setup ptr */
 227
 228                         if((cd = cd_by_cdid(mcr->cdid)) == NULL)/* get cd */
 229                         {
 230                                 NDBGL4(L4_ERR, "I4B_CONNECT_REQ ioctl, cdid not found!");
 231                                 error = EINVAL;
 232                                 break;
 233                         }
 234
 235                         /* prevent dialling on leased lines */
 236                         if(ctrl_desc[mcr->controller].protocol == PROTOCOL_D64S)
 237                         {
 238                                 SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
 239                                 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_LLDIAL);
 240                                 i4b_l4_disconnect_ind(cd);
 241                                 freecd_by_cd(cd);
 242                                 break;
 243                         }
 244
 245                         cd->controller = mcr->controller;       /* fill cd */
 246                         cd->bprot = mcr->bprot;
 247                         cd->driver = mcr->driver;
 248                         cd->driver_unit = mcr->driver_unit;
 249                         cd->cr = get_rand_cr(ctrl_desc[cd->controller].unit);
 250
 251                         cd->shorthold_data.shorthold_algorithm = mcr->shorthold_data.shorthold_algorithm;
 252                         cd->shorthold_data.unitlen_time  = mcr->shorthold_data.unitlen_time;
 253                         cd->shorthold_data.idle_time     = mcr->shorthold_data.idle_time;
 254                         cd->shorthold_data.earlyhup_time = mcr->shorthold_data.earlyhup_time;
 255
 256                         cd->last_aocd_time = 0;
 257                         if(mcr->unitlen_method == ULEN_METHOD_DYNAMIC)
 258                                 cd->aocd_flag = 1;
 259                         else
 260                                 cd->aocd_flag = 0;
 261
 262                         cd->cunits = 0;
 263
 264                         cd->max_idle_time = 0;  /* this is outgoing */
 265
 266                         cd->dir = DIR_OUTGOING;
 267
 268                         NDBGL4(L4_TIMO, "I4B_CONNECT_REQ times, algorithm=%ld unitlen=%ld idle=%ld earlyhup=%ld",
 269                                         (long)cd->shorthold_data.shorthold_algorithm, (long)cd->shorthold_data.unitlen_time,
 270                                         (long)cd->shorthold_data.idle_time, (long)cd->shorthold_data.earlyhup_time);
 271
 272                         strcpy(cd->dst_telno, mcr->dst_telno);
 273                         strcpy(cd->src_telno, mcr->src_telno);
 274
 275                         if(mcr->keypad[0] != '\0')
 276                                 strcpy(cd->keypad, mcr->keypad);
 277                         else
 278                                 cd->keypad[0] = '\0';
 279
 280                         cd->display[0] = '\0';
 281
 282                         SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
 283                         SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NORMAL);
 284
 285                         switch(mcr->channel)
 286                         {
 287                                 case CHAN_B1:
 288                                 case CHAN_B2:
 289                                         if(ctrl_desc[mcr->controller].bch_state[mcr->channel] != BCH_ST_FREE)
 290                                                 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
 291                                         break;
 292
 293                                 case CHAN_ANY:
 294                                 {
 295                                     int i;
 296                                     for (i = 0;
 297                                          i < ctrl_desc[mcr->controller].nbch &&
 298                                          ctrl_desc[mcr->controller].bch_state[i] != BCH_ST_FREE;
 299                                          i++);
 300                                     if (i == ctrl_desc[mcr->controller].nbch)
 301                                                 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
 302                                     /* else mcr->channel = i; XXX */
 303                                 }
 304                                         break;
 305
 306                                 default:
 307                                         SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
 308                                         break;
 309                         }
 310
 311                         cd->channelid = mcr->channel;
 312
 313                         cd->isdntxdelay = mcr->txdelay;
 314
 315                         /* check whether we have a pointer. Seems like */
 316                         /* this should be adequate. GJ 19.09.97 */
 317                         if(ctrl_desc[cd->controller].N_CONNECT_REQUEST == NULL)
 318 /*XXX*/                         SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
 319
 320                         if((GET_CAUSE_VAL(cd->cause_in)) != CAUSE_I4B_NORMAL)
 321                         {
 322                                 i4b_l4_disconnect_ind(cd);
 323                                 freecd_by_cd(cd);
 324                         }
 325                         else
 326                         {
 327                                 (*ctrl_desc[cd->controller].N_CONNECT_REQUEST)(mcr->cdid);
 328                         }
 329                         break;
 330                 }
 331
 332                 /* connect response, accept/reject/ignore incoming call */
 333
 334                 case I4B_CONNECT_RESP:
 335                 {
 336                         msg_connect_resp_t *mcrsp;
 337
 338                         mcrsp = (msg_connect_resp_t *)data;
 339
 340                         if((cd = cd_by_cdid(mcrsp->cdid)) == NULL)/* get cd */
 341                         {
 342                                 NDBGL4(L4_ERR, "I4B_CONNECT_RESP ioctl, cdid not found!");
 343                                 error = EINVAL;
 344                                 break;
 345                         }
 346
 347                         T400_stop(cd);
 348
 349                         cd->driver = mcrsp->driver;
 350                         cd->driver_unit = mcrsp->driver_unit;
 351                         cd->max_idle_time = mcrsp->max_idle_time;
 352
 353                         cd->shorthold_data.shorthold_algorithm = SHA_FIXU;
 354                         cd->shorthold_data.unitlen_time = 0;    /* this is incoming */
 355                         cd->shorthold_data.idle_time = 0;
 356                         cd->shorthold_data.earlyhup_time = 0;
 357
 358                         cd->isdntxdelay = mcrsp->txdelay;
 359
 360                         NDBGL4(L4_TIMO, "I4B_CONNECT_RESP max_idle_time set to %ld seconds", (long)cd->max_idle_time);
 361
 362                         (*ctrl_desc[cd->controller].N_CONNECT_RESPONSE)(mcrsp->cdid, mcrsp->response, mcrsp->cause);
 363                         break;
 364                 }
 365
 366                 /* disconnect request, actively terminate connection */
 367
 368                 case I4B_DISCONNECT_REQ:
 369                 {
 370                         msg_discon_req_t *mdr;
 371
 372                         mdr = (msg_discon_req_t *)data;
 373
 374                         if((cd = cd_by_cdid(mdr->cdid)) == NULL)/* get cd */
 375                         {
 376                                 NDBGL4(L4_ERR, "I4B_DISCONNECT_REQ ioctl, cdid not found!");
 377                                 error = EINVAL;
 378                                 break;
 379                         }
 380
 381                         /* preset causes with our cause */
 382                         cd->cause_in = cd->cause_out = mdr->cause;
 383
 384                         (*ctrl_desc[cd->controller].N_DISCONNECT_REQUEST)(mdr->cdid, mdr->cause);
 385                         break;
 386                 }
 387
 388                 /* controller info request */
 389
 390                 case I4B_CTRL_INFO_REQ:
 391                 {
 392                         msg_ctrl_info_req_t *mcir;
 393
 394                         mcir = (msg_ctrl_info_req_t *)data;
 395                         mcir->ncontroller = nctrl;
 396
 397                         if(mcir->controller > nctrl)
 398                         {
 399                                 mcir->ctrl_type = -1;
 400                                 mcir->card_type = -1;
 401                         }
 402                         else
 403                         {
 404                                 mcir->ctrl_type =
 405                                         ctrl_desc[mcir->controller].ctrl_type;
 406                                 mcir->card_type =
 407                                         ctrl_desc[mcir->controller].card_type;
 408                                 mcir->nbch =
 409                                         ctrl_desc[mcir->controller].nbch;
 410
 411                                 if(ctrl_desc[mcir->controller].ctrl_type == CTRL_PASSIVE)
 412                                         mcir->tei = ctrl_desc[mcir->controller].tei;
 413                                 else
 414                                         mcir->tei = -1;
 415                         }
 416                         break;
 417                 }
 418
 419                 /* dial response */
 420
 421                 case I4B_DIALOUT_RESP:
 422                 {
 423                         drvr_link_t *dlt = NULL;
 424                         msg_dialout_resp_t *mdrsp;
 425
 426                         mdrsp = (msg_dialout_resp_t *)data;
 427
 428                         switch(mdrsp->driver)
 429                         {
 430 #if NI4BIPR > 0
 431                                 case BDRV_IPR:
 432                                         dlt = ipr_ret_linktab(mdrsp->driver_unit);
 433                                         break;
 434 #endif
 435
 436 #if NI4BISPPP > 0
 437                                 case BDRV_ISPPP:
 438                                         dlt = i4bisppp_ret_linktab(mdrsp->driver_unit);
 439                                         break;
 440 #endif
 441
 442 #if NI4BTEL > 0
 443                                 case BDRV_TEL:
 444                                         dlt = tel_ret_linktab(mdrsp->driver_unit);
 445                                         break;
 446 #endif
 447
 448 #if NIBC > 0
 449                                 case BDRV_IBC:
 450                                         dlt = ibc_ret_linktab(mdrsp->driver_unit);
 451                                         break;
 452 #endif
 453
 454 #if NI4BING > 0
 455                                 case BDRV_ING:
 456                                         dlt = ing_ret_linktab(mdrsp->driver_unit);
 457                                         break;
 458 #endif
 459                         }
 460
 461                         if(dlt != NULL)
 462                                 (*dlt->dial_response)(mdrsp->driver_unit, mdrsp->stat, mdrsp->cause);
 463                         break;
 464                 }
 465
 466                 /* update timeout value */
 467
 468                 case I4B_TIMEOUT_UPD:
 469                 {
 470                         msg_timeout_upd_t *mtu;
 471
 472                         mtu = (msg_timeout_upd_t *)data;
 473
 474                         NDBGL4(L4_TIMO, "I4B_TIMEOUT_UPD ioctl, alg %d, unit %d, idle %d, early %d!",
 475                                         mtu->shorthold_data.shorthold_algorithm, mtu->shorthold_data.unitlen_time,
 476                                         mtu->shorthold_data.idle_time, mtu->shorthold_data.earlyhup_time);
 477
 478                         if((cd = cd_by_cdid(mtu->cdid)) == NULL)/* get cd */
 479                         {
 480                                 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, cdid not found!");
 481                                 error = EINVAL;
 482                                 break;
 483                         }
 484
 485                         switch( mtu->shorthold_data.shorthold_algorithm )
 486                         {
 487                                 case SHA_FIXU:
 488                                         /*
 489                                          * For this algorithm unitlen_time,
 490                                          * idle_time and earlyhup_time are used.
 491                                          */
 492
 493                                         if(!(mtu->shorthold_data.unitlen_time >= 0 &&
 494                                              mtu->shorthold_data.idle_time >= 0    &&
 495                                              mtu->shorthold_data.earlyhup_time >= 0))
 496                                         {
 497                                                 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for fix unit algorithm!");
 498                                                 error = EINVAL;
 499                                         }
 500                                         break;
 501
 502                                 case SHA_VARU:
 503                                         /*
 504                                          * For this algorithm unitlen_time and
 505                                          * idle_time are used. both must be
 506                                          * positive integers. earlyhup_time is
 507                                          * not used and must be 0.
 508                                          */
 509
 510                                         if(!(mtu->shorthold_data.unitlen_time > 0 &&
 511                                              mtu->shorthold_data.idle_time >= 0   &&
 512                                              mtu->shorthold_data.earlyhup_time == 0))
 513                                         {
 514                                                 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for var unit algorithm!");
 515                                                 error = EINVAL;
 516                                         }
 517                                         break;
 518
 519                                 default:
 520                                         NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid algorithm!");
 521                                         error = EINVAL;
 522                                         break;
 523                         }
 524
 525                         /*
 526                          * any error set above requires us to break
 527                          * out of the outer switch
 528                          */
 529                         if(error != 0)
 530                                 break;
 531
 532                         crit_enter();
 533                         cd->shorthold_data.shorthold_algorithm = mtu->shorthold_data.shorthold_algorithm;
 534                         cd->shorthold_data.unitlen_time = mtu->shorthold_data.unitlen_time;
 535                         cd->shorthold_data.idle_time = mtu->shorthold_data.idle_time;
 536                         cd->shorthold_data.earlyhup_time = mtu->shorthold_data.earlyhup_time;
 537                         crit_exit();
 538                         break;
 539                 }
 540
 541                 /* soft enable/disable interface */
 542
 543                 case I4B_UPDOWN_IND:
 544                 {
 545                         msg_updown_ind_t *mui;
 546
 547                         mui = (msg_updown_ind_t *)data;
 548
 549 #if NI4BIPR > 0
 550                         if(mui->driver == BDRV_IPR)
 551                         {
 552                                 drvr_link_t *dlt;
 553                                 dlt = ipr_ret_linktab(mui->driver_unit);
 554                                 (*dlt->updown_ind)(mui->driver_unit, mui->updown);
 555                         }
 556 #endif
 557                         break;
 558                 }
 559
 560                 /* send ALERT request */
 561
 562                 case I4B_ALERT_REQ:
 563                 {
 564                         msg_alert_req_t *mar;
 565
 566                         mar = (msg_alert_req_t *)data;
 567
 568                         if((cd = cd_by_cdid(mar->cdid)) == NULL)
 569                         {
 570                                 NDBGL4(L4_ERR, "I4B_ALERT_REQ ioctl, cdid not found!");
 571                                 error = EINVAL;
 572                                 break;
 573                         }
 574
 575                         T400_stop(cd);
 576
 577                         (*ctrl_desc[cd->controller].N_ALERT_REQUEST)(mar->cdid);
 578
 579                         break;
 580                 }
 581
 582                 /* version/release number request */
 583
 584                 case I4B_VR_REQ:
 585                 {
 586                         msg_vr_req_t *mvr;
 587
 588                         mvr = (msg_vr_req_t *)data;
 589
 590                         mvr->version = VERSION;
 591                         mvr->release = REL;
 592                         mvr->step = STEP;
 593                         break;
 594                 }
 595
 596                 /* set D-channel protocol for a controller */
 597
 598                 case I4B_PROT_IND:
 599                 {
 600                         msg_prot_ind_t *mpi;
 601
 602                         mpi = (msg_prot_ind_t *)data;
 603
 604                         ctrl_desc[mpi->controller].protocol = mpi->protocol;
 605
 606                         break;
 607                 }
 608
 609                 /* Download request */
 610
 611                 case I4B_CTRL_DOWNLOAD:
 612                 {
 613                         struct isdn_dr_prot *prots = NULL, *prots2 = NULL;
 614                         struct isdn_download_request *r =
 615                                 (struct isdn_download_request*)data;
 616                         int i;
 617
 618                         if (r->controller < 0 || r->controller >= nctrl)
 619                         {
 620                                 error = ENODEV;
 621                                 goto download_done;
 622                         }
 623
 624                         if(!ctrl_desc[r->controller].N_DOWNLOAD)
 625                         {
 626                                 error = ENODEV;
 627                                 goto download_done;
 628                         }
 629
 630                         prots = kmalloc(r->numprotos * sizeof(struct isdn_dr_prot),
 631                                         M_DEVBUF, M_WAITOK);
 632
 633                         prots2 = kmalloc(r->numprotos * sizeof(struct isdn_dr_prot),
 634                                         M_DEVBUF, M_WAITOK);
 635
 636                         copyin(r->protocols, prots, r->numprotos * sizeof(struct isdn_dr_prot));
 637
 638                         for(i = 0; i < r->numprotos; i++)
 639                         {
 640                                 prots2[i].microcode = kmalloc(prots[i].bytecount, M_DEVBUF, M_WAITOK);
 641                                 copyin(prots[i].microcode, prots2[i].microcode, prots[i].bytecount);
 642                                 prots2[i].bytecount = prots[i].bytecount;
 643                         }
 644
 645                         error = ctrl_desc[r->controller].N_DOWNLOAD(
 646                                                 ctrl_desc[r->controller].unit,
 647                                                 r->numprotos, prots2);
 648
 649 download_done:
 650                         if(prots2)
 651                         {
 652                                 for(i = 0; i < r->numprotos; i++)
 653                                 {
 654                                         if(prots2[i].microcode)
 655                                         {
 656                                                 kfree(prots2[i].microcode, M_DEVBUF);
 657                                         }
 658                                 }
 659                                 kfree(prots2, M_DEVBUF);
 660                         }
 661
 662                         if(prots)
 663                         {
 664                                 kfree(prots, M_DEVBUF);
 665                         }
 666                         break;
 667                 }
 668
 669                 /* Diagnostic request */
 670
 671                 case I4B_ACTIVE_DIAGNOSTIC:
 672                 {
 673                         struct isdn_diagnostic_request req, *r =
 674                                 (struct isdn_diagnostic_request*)data;
 675
 676                         req.in_param = req.out_param = NULL;
 677                         if (r->controller < 0 || r->controller >= nctrl)
 678                         {
 679                                 error = ENODEV;
 680                                 goto diag_done;
 681                         }
 682
 683                         if(!ctrl_desc[r->controller].N_DIAGNOSTICS)
 684                         {
 685                                 error = ENODEV;
 686                                 goto diag_done;
 687                         }
 688
 689                         memcpy(&req, r, sizeof(req));
 690
 691                         if(req.in_param_len)
 692                         {
 693                                 /* XXX arbitrary limit */
 694                                 if (req.in_param_len >
 695                                     I4B_ACTIVE_DIAGNOSTIC_MAXPARAMLEN) {
 696                                         error = EINVAL;
 697                                         goto diag_done;
 698                                 }
 699
 700                                 req.in_param = kmalloc(r->in_param_len, M_DEVBUF, M_WAITOK);
 701
 702                                 error = copyin(r->in_param, req.in_param, req.in_param_len);
 703                                 if (error)
 704                                         goto diag_done;
 705                         }
 706
 707                         if(req.out_param_len)
 708                                 req.out_param = kmalloc(r->out_param_len, M_DEVBUF, M_WAITOK);
 709
 710                         error = ctrl_desc[r->controller].N_DIAGNOSTICS(r->controller, &req);
 711
 712                         if(!error && req.out_param_len)
 713                                 error = copyout(req.out_param, r->out_param, req.out_param_len);
 714
 715 diag_done:
 716                         if(req.in_param)
 717                                 kfree(req.in_param, M_DEVBUF);
 718
 719                         if(req.out_param)
 720                                 kfree(req.out_param, M_DEVBUF);
 721
 722                         break;
 723                 }
 724
 725                 /* default */
 726
 727                 default:
 728                         error = ENOTTY;
 729                         break;
 730         }
 731
 732         return(error);
 733 }
 734
 735 /*---------------------------------------------------------------------------*
 736  *      i4bpoll - device driver poll routine
 737  *---------------------------------------------------------------------------*/
 738 PDEVSTATIC int
 739 i4bpoll(struct dev_poll_args *ap)
 740 {
 741         cdev_t dev = ap->a_head.a_dev;
 742         int revents;
 743
 744         if (minor(dev))
 745                 return(ENODEV);
 746
 747         revents = 0;
 748
 749         if (ap->a_events & (POLLIN|POLLRDNORM)) {
 750                 crit_enter();
 751                 if (!IF_QEMPTY(&i4b_rdqueue)) {
 752                         revents |= POLLIN | POLLRDNORM;
 753                 } else {
 754                         selrecord(curthread, &select_rd_info);
 755                         selflag = 1;
 756                 }
 757                 crit_exit();
 758                 return(0);
 759         }
 760         if (ap->a_events & (POLLOUT|POLLWRNORM)) {
 761                 revents |= ap->a_events & (POLLOUT | POLLWRNORM);
 762         }
 763         ap->a_events = revents;
 764         return(0);
 765 }
 766
 767 /*---------------------------------------------------------------------------*
 768  *      i4bputqueue - put message into queue to userland
 769  *---------------------------------------------------------------------------*/
 770 void
 771 i4bputqueue(struct mbuf *m)
 772 {
 773         if(!openflag)
 774         {
 775                 i4b_Dfreembuf(m);
 776                 return;
 777         }
 778
 779         crit_enter();
 780
 781         if(IF_QFULL(&i4b_rdqueue))
 782         {
 783                 struct mbuf *m1;
 784                 IF_DEQUEUE(&i4b_rdqueue, m1);
 785                 i4b_Dfreembuf(m1);
 786                 NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
 787         }
 788
 789         IF_ENQUEUE(&i4b_rdqueue, m);
 790
 791         crit_exit();
 792
 793         if(readflag)
 794         {
 795                 readflag = 0;
 796                 wakeup((caddr_t) &i4b_rdqueue);
 797         }
 798
 799         if(selflag)
 800         {
 801                 selflag = 0;
 802                 selwakeup(&select_rd_info);
 803         }
 804 }
 805
 806 /*---------------------------------------------------------------------------*
 807  *      i4bputqueue_hipri - put message into front of queue to userland
 808  *---------------------------------------------------------------------------*/
 809 void
 810 i4bputqueue_hipri(struct mbuf *m)
 811 {
 812         if(!openflag)
 813         {
 814                 i4b_Dfreembuf(m);
 815                 return;
 816         }
 817
 818         crit_enter();
 819
 820         if(IF_QFULL(&i4b_rdqueue))
 821         {
 822                 struct mbuf *m1;
 823                 IF_DEQUEUE(&i4b_rdqueue, m1);
 824                 i4b_Dfreembuf(m1);
 825                 NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
 826         }
 827
 828         IF_PREPEND(&i4b_rdqueue, m);
 829
 830         crit_exit();
 831
 832         if(readflag)
 833         {
 834                 readflag = 0;
 835                 wakeup((caddr_t) &i4b_rdqueue);
 836         }
 837
 838         if(selflag)
 839         {
 840                 selflag = 0;
 841                 selwakeup(&select_rd_info);
 842         }
 843 }
 844
 845 #endif /* NI4B > 0 */