sys/i4b/driver/i4b_ctl.c

   1 /*
   2  * Copyright (c) 1997, 1999 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_ctl.c - i4b system control port driver
  28  *      ------------------------------------------
  29  *
  30  *      $Id: i4b_ctl.c,v 1.30 1999/12/13 21:25:23 hm Exp $
  31  *
  32  * $FreeBSD$
  33  *
  34  *      last edit-date: [Mon Dec 13 21:38:15 1999]
  35  *
  36  *---------------------------------------------------------------------------*/
  37
  38 #include "i4bctl.h"
  39
  40 #if NI4BCTL > 1
  41 #error "only 1 (one) i4bctl device allowed!"
  42 #endif
  43
  44 #if NI4BCTL > 0
  45
  46 #include <sys/param.h>
  47
  48 #if defined(__FreeBSD__) && __FreeBSD__ >= 3
  49 #include <sys/ioccom.h>
  50 #include <i386/isa/isa_device.h>
  51 #else
  52 #include <sys/ioctl.h>
  53 #endif
  54
  55 #include <sys/kernel.h>
  56 #include <sys/systm.h>
  57 #include <sys/conf.h>
  58 #include <sys/mbuf.h>
  59 #include <sys/proc.h>
  60 #include <sys/fcntl.h>
  61 #include <sys/socket.h>
  62 #include <net/if.h>
  63
  64 #ifdef __FreeBSD__
  65
  66 #if defined(__FreeBSD__) && __FreeBSD__ == 3
  67 #include "opt_devfs.h"
  68 #endif
  69
  70 #ifdef DEVFS
  71 #include <sys/devfsext.h>
  72 #endif
  73
  74 #endif /* __FreeBSD__ */
  75
  76 #ifdef __FreeBSD__
  77 #include <machine/i4b_debug.h>
  78 #include <machine/i4b_ioctl.h>
  79 #elif defined(__bsdi__)
  80 #include <i4b/i4b_debug.h>
  81 #include <i4b/i4b_ioctl.h>
  82 #else
  83 #include <machine/bus.h>
  84 #include <sys/device.h>
  85 #include <i4b/i4b_debug.h>
  86 #include <i4b/i4b_ioctl.h>
  87 #endif
  88
  89 #include <i4b/include/i4b_global.h>
  90 #include <i4b/include/i4b_mbuf.h>
  91 #include <i4b/layer1/i4b_l1.h>
  92 #include <i4b/layer2/i4b_l2.h>
  93
  94 static int openflag = 0;
  95
  96 #if BSD > 199306 && defined(__FreeBSD__)
  97 static  d_open_t        i4bctlopen;
  98 static  d_close_t       i4bctlclose;
  99 static  d_ioctl_t       i4bctlioctl;
 100
 101 #ifdef OS_USES_POLL
 102 static d_poll_t         i4bctlpoll;
 103 #define POLLFIELD       i4bctlpoll
 104 #else
 105 #define POLLFIELD       noselect
 106 #endif
 107
 108 #define CDEV_MAJOR 55
 109
 110 #if defined(__FreeBSD__) && __FreeBSD__ >= 4
 111 static struct cdevsw i4bctl_cdevsw = {
 112         /* open */      i4bctlopen,
 113         /* close */     i4bctlclose,
 114         /* read */      noread,
 115         /* write */     nowrite,
 116         /* ioctl */     i4bctlioctl,
 117         /* poll */      POLLFIELD,
 118         /* mmap */      nommap,
 119         /* strategy */  nostrategy,
 120         /* name */      "i4bctl",
 121         /* maj */       CDEV_MAJOR,
 122         /* dump */      nodump,
 123         /* psize */     nopsize,
 124         /* flags */     0,
 125         /* bmaj */      -1
 126 };
 127 #else
 128 static struct cdevsw i4bctl_cdevsw =
 129         { i4bctlopen,   i4bctlclose,    noread,         nowrite,
 130           i4bctlioctl,  nostop,         nullreset,      nodevtotty,
 131           POLLFIELD,    nommap,         NULL,   "i4bctl", NULL, -1 };
 132 #endif
 133
 134 static void i4bctlattach(void *);
 135 PSEUDO_SET(i4bctlattach, i4b_i4bctldrv);
 136
 137 #define PDEVSTATIC      static
 138 #endif /* __FreeBSD__ */
 139
 140 #if defined(__FreeBSD__) && __FreeBSD__ == 3
 141 #ifdef DEVFS
 142 static void *devfs_token;
 143 #endif
 144 #endif
 145
 146 #ifndef __FreeBSD__
 147 #define PDEVSTATIC      /* */
 148 void i4bctlattach __P((void));
 149 int i4bctlopen __P((dev_t dev, int flag, int fmt, struct proc *p));
 150 int i4bctlclose __P((dev_t dev, int flag, int fmt, struct proc *p));
 151 #ifdef __bsdi__
 152 int i4bctlioctl __P((dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p));
 153 #else
 154 int i4bctlioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct proc *p));
 155 #endif
 156 #endif  /* !FreeBSD */
 157
 158 #if BSD > 199306 && defined(__FreeBSD__)
 159 /*---------------------------------------------------------------------------*
 160  *      initialization at kernel load time
 161  *---------------------------------------------------------------------------*/
 162 static void
 163 i4bctlinit(void *unused)
 164 {
 165 #if defined(__FreeBSD__) && __FreeBSD__ >= 4
 166         cdevsw_add(&i4bctl_cdevsw);
 167 #else
 168         dev_t dev = makedev(CDEV_MAJOR, 0);
 169         cdevsw_add(&dev, &i4bctl_cdevsw, NULL);
 170 #endif
 171 }
 172
 173 SYSINIT(i4bctldev, SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, &i4bctlinit, NULL);
 174
 175 #endif /* BSD > 199306 && defined(__FreeBSD__) */
 176
 177 #ifdef __bsdi__
 178 int i4bctlmatch(struct device *parent, struct cfdata *cf, void *aux);
 179 void dummy_i4bctlattach(struct device*, struct device *, void *);
 180
 181 #define CDEV_MAJOR 64
 182
 183 static struct cfdriver i4bctlcd =
 184         { NULL, "i4bctl", i4bctlmatch, dummy_i4bctlattach, DV_DULL,
 185           sizeof(struct cfdriver) };
 186 struct devsw i4bctlsw =
 187         { &i4bctlcd,
 188           i4bctlopen,   i4bctlclose,    noread,         nowrite,
 189           i4bctlioctl,  seltrue,        nommap,         nostrat,
 190           nodump,       nopsize,        0,              nostop
 191 };
 192
 193 int
 194 i4bctlmatch(struct device *parent, struct cfdata *cf, void *aux)
 195 {
 196         printf("i4bctlmatch: aux=0x%x\n", aux);
 197         return 1;
 198 }
 199 void
 200 dummy_i4bctlattach(struct device *parent, struct device *self, void *aux)
 201 {
 202         printf("dummy_i4bctlattach: aux=0x%x\n", aux);
 203 }
 204 #endif /* __bsdi__ */
 205 /*---------------------------------------------------------------------------*
 206  *      interface attach routine
 207  *---------------------------------------------------------------------------*/
 208 PDEVSTATIC void
 209 #ifdef __FreeBSD__
 210 i4bctlattach(void *dummy)
 211 #else
 212 i4bctlattach()
 213 #endif
 214 {
 215 #ifndef HACK_NO_PSEUDO_ATTACH_MSG
 216         printf("i4bctl: ISDN system control port attached\n");
 217 #endif
 218
 219 #if defined(__FreeBSD__)
 220 #if __FreeBSD__ == 3
 221
 222 #ifdef DEVFS
 223         devfs_token = devfs_add_devswf(&i4bctl_cdevsw, 0, DV_CHR,
 224                                        UID_ROOT, GID_WHEEL, 0600,
 225                                        "i4bctl");
 226 #endif
 227
 228 #else
 229         make_dev(&i4bctl_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "i4bctl");
 230 #endif
 231 #endif
 232 }
 233
 234 /*---------------------------------------------------------------------------*
 235  *      i4bctlopen - device driver open routine
 236  *---------------------------------------------------------------------------*/
 237 PDEVSTATIC int
 238 i4bctlopen(dev_t dev, int flag, int fmt, struct proc *p)
 239 {
 240         if(minor(dev))
 241                 return (ENXIO);
 242
 243         if(openflag)
 244                 return (EBUSY);
 245
 246         openflag = 1;
 247
 248         return (0);
 249 }
 250
 251 /*---------------------------------------------------------------------------*
 252  *      i4bctlclose - device driver close routine
 253  *---------------------------------------------------------------------------*/
 254 PDEVSTATIC int
 255 i4bctlclose(dev_t dev, int flag, int fmt, struct proc *p)
 256 {
 257         openflag = 0;
 258         return (0);
 259 }
 260
 261 /*---------------------------------------------------------------------------*
 262  *      i4bctlioctl - device driver ioctl routine
 263  *---------------------------------------------------------------------------*/
 264 PDEVSTATIC int
 265 #if defined (__FreeBSD_version) && __FreeBSD_version >= 300003
 266 i4bctlioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
 267 #elif defined(__bsdi__)
 268 i4bctlioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
 269 #else
 270 i4bctlioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
 271 #endif
 272 {
 273         ctl_debug_t *cdbg;
 274         int error = 0;
 275
 276 #ifndef DO_I4B_DEBUG
 277        return(ENODEV);
 278 #else
 279         if(minor(dev))
 280                 return(ENODEV);
 281
 282         switch(cmd)
 283         {
 284                 case I4B_CTL_GET_DEBUG:
 285                         cdbg = (ctl_debug_t *)data;
 286                         cdbg->l1 = i4b_l1_debug;
 287                         cdbg->l2 = i4b_l2_debug;
 288                         cdbg->l3 = i4b_l3_debug;
 289                         cdbg->l4 = i4b_l4_debug;
 290                         break;
 291
 292                 case I4B_CTL_SET_DEBUG:
 293                         cdbg = (ctl_debug_t *)data;
 294                         i4b_l1_debug = cdbg->l1;
 295                         i4b_l2_debug = cdbg->l2;
 296                         i4b_l3_debug = cdbg->l3;
 297                         i4b_l4_debug = cdbg->l4;
 298                         break;
 299
 300                 case I4B_CTL_GET_HSCXSTAT:
 301                 {
 302                         hscxstat_t *hst;
 303                         struct l1_softc *sc;
 304                         hst = (hscxstat_t *)data;
 305
 306                         if( hst->unit < 0               ||
 307                             hst->unit > ISIC_MAXUNIT    ||
 308                             hst->chan < 0               ||
 309                             hst->chan > 1 )
 310                         {
 311                                 error = EINVAL;
 312                                 break;
 313                         }
 314
 315 #ifndef __FreeBSD__
 316                         sc = isic_find_sc(hst->unit);
 317 #else
 318                         sc = &l1_sc[hst->unit];
 319 #endif
 320                         hst->vfr = sc->sc_chan[hst->chan].stat_VFR;
 321                         hst->rdo = sc->sc_chan[hst->chan].stat_RDO;
 322                         hst->crc = sc->sc_chan[hst->chan].stat_CRC;
 323                         hst->rab = sc->sc_chan[hst->chan].stat_RAB;
 324                         hst->xdu = sc->sc_chan[hst->chan].stat_XDU;
 325                         hst->rfo = sc->sc_chan[hst->chan].stat_RFO;
 326                         break;
 327                 }
 328
 329                 case I4B_CTL_CLR_HSCXSTAT:
 330                 {
 331                         hscxstat_t *hst;
 332                         struct l1_softc *sc;
 333                         hst = (hscxstat_t *)data;
 334
 335                         if( hst->unit < 0               ||
 336                             hst->unit > ISIC_MAXUNIT    ||
 337                             hst->chan < 0               ||
 338                             hst->chan > 1 )
 339                         {
 340                                 error = EINVAL;
 341                                 break;
 342                         }
 343
 344 #ifndef __FreeBSD__
 345                         sc = isic_find_sc(hst->unit);
 346 #else
 347                         sc = &l1_sc[hst->unit];
 348 #endif
 349
 350                         sc->sc_chan[hst->chan].stat_VFR = 0;
 351                         sc->sc_chan[hst->chan].stat_RDO = 0;
 352                         sc->sc_chan[hst->chan].stat_CRC = 0;
 353                         sc->sc_chan[hst->chan].stat_RAB = 0;
 354                         sc->sc_chan[hst->chan].stat_XDU = 0;
 355                         sc->sc_chan[hst->chan].stat_RFO = 0;
 356
 357                         break;
 358                 }
 359
 360                 case I4B_CTL_GET_LAPDSTAT:
 361                 {
 362                         l2stat_t *l2s;
 363                         l2_softc_t *sc;
 364                         l2s = (l2stat_t *)data;
 365
 366                         if( l2s->unit < 0 || l2s->unit > ISIC_MAXUNIT)
 367                         {
 368                                 error = EINVAL;
 369                                 break;
 370                         }
 371
 372                         sc = &l2_softc[l2s->unit];
 373
 374                         bcopy(&sc->stat, &l2s->lapdstat, sizeof(lapdstat_t));
 375                         break;
 376                 }
 377
 378                 case I4B_CTL_CLR_LAPDSTAT:
 379                 {
 380                         int *up;
 381                         l2_softc_t *sc;
 382                         up = (int *)data;
 383
 384                         if( *up < 0 || *up > ISIC_MAXUNIT)
 385                         {
 386                                 error = EINVAL;
 387                                 break;
 388                         }
 389
 390                         sc = &l2_softc[*up];
 391
 392                         bzero(&sc->stat, sizeof(lapdstat_t));
 393                         break;
 394                 }
 395
 396                 default:
 397                         error = ENOTTY;
 398                         break;
 399         }
 400         return(error);
 401 #endif DO_I4B_DEBUG
 402 }
 403
 404 #if defined(__FreeBSD__) && defined(OS_USES_POLL)
 405
 406 /*---------------------------------------------------------------------------*
 407  *      i4bctlpoll - device driver poll routine
 408  *---------------------------------------------------------------------------*/
 409 static int
 410 i4bctlpoll (dev_t dev, int events, struct proc *p)
 411 {
 412         return (ENODEV);
 413 }
 414
 415 #endif
 416
 417 #endif /* NI4BCTL > 0 */