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  * $FreeBSD$
  31  *
  32  *      last edit-date: [Tue Jun  8 09:27:15 1999]
  33  *
  34  *---------------------------------------------------------------------------*/
  35
  36 #include "i4bctl.h"
  37
  38 #if NI4BCTL > 1
  39 #error "only 1 (one) i4bctl device allowed!"
  40 #endif
  41
  42 #if NI4BCTL > 0
  43
  44 #include <sys/param.h>
  45
  46 #if defined(__FreeBSD__) && __FreeBSD__ >= 3
  47 #include <sys/ioccom.h>
  48 #include <i386/isa/isa_device.h>
  49 #else
  50 #include <sys/ioctl.h>
  51 #endif
  52
  53 #include <sys/kernel.h>
  54 #include <sys/systm.h>
  55 #include <sys/conf.h>
  56 #include <sys/mbuf.h>
  57 #include <sys/proc.h>
  58 #include <sys/fcntl.h>
  59 #include <sys/socket.h>
  60 #include <net/if.h>
  61
  62 #ifdef __FreeBSD__
  63 #include <machine/i4b_debug.h>
  64 #include <machine/i4b_ioctl.h>
  65 #elif defined(__bsdi__)
  66 #include <i4b/i4b_debug.h>
  67 #include <i4b/i4b_ioctl.h>
  68 #else
  69 #include <machine/bus.h>
  70 #include <sys/device.h>
  71 #include <i4b/i4b_debug.h>
  72 #include <i4b/i4b_ioctl.h>
  73 #endif
  74
  75 #include <i4b/include/i4b_global.h>
  76 #include <i4b/include/i4b_mbuf.h>
  77 #include <i4b/layer1/i4b_l1.h>
  78 #include <i4b/layer2/i4b_l2.h>
  79
  80 static int openflag = 0;
  81
  82 #if BSD > 199306 && defined(__FreeBSD__)
  83 static  d_open_t        i4bctlopen;
  84 static  d_close_t       i4bctlclose;
  85 static  d_ioctl_t       i4bctlioctl;
  86
  87 #ifdef OS_USES_POLL
  88 static d_poll_t         i4bctlpoll;
  89 #define POLLFIELD       i4bctlpoll
  90 #else
  91 #define POLLFIELD       noselect
  92 #endif
  93
  94 #define CDEV_MAJOR 55
  95
  96 #if defined (__FreeBSD_version) && __FreeBSD_version >= 400006
  97 static struct cdevsw i4bctl_cdevsw = {
  98         /* open */      i4bctlopen,
  99         /* close */     i4bctlclose,
 100         /* read */      noread,
 101         /* write */     nowrite,
 102         /* ioctl */     i4bctlioctl,
 103         /* poll */      POLLFIELD,
 104         /* mmap */      nommap,
 105         /* strategy */  nostrategy,
 106         /* name */      "i4bctl",
 107         /* maj */       CDEV_MAJOR,
 108         /* dump */      nodump,
 109         /* psize */     nopsize,
 110         /* flags */     0,
 111         /* bmaj */      -1
 112 };
 113 #else
 114 static struct cdevsw i4bctl_cdevsw =
 115         { i4bctlopen,   i4bctlclose,    noread,         nowrite,
 116           i4bctlioctl,  nostop,         nullreset,      nodevtotty,
 117           POLLFIELD,    nommap,         NULL,   "i4bctl", NULL, -1 };
 118 #endif
 119
 120 static void i4bctlattach(void *);
 121 PSEUDO_SET(i4bctlattach, i4b_i4bctldrv);
 122
 123 #define PDEVSTATIC      static
 124 #endif /* __FreeBSD__ */
 125
 126 #ifndef __FreeBSD__
 127 #define PDEVSTATIC      /* */
 128 void i4bctlattach __P((void));
 129 int i4bctlopen __P((dev_t dev, int flag, int fmt, struct proc *p));
 130 int i4bctlclose __P((dev_t dev, int flag, int fmt, struct proc *p));
 131 #ifdef __bsdi__
 132 int i4bctlioctl __P((dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p));
 133 #else
 134 int i4bctlioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct proc *p));
 135 #endif
 136 #endif  /* !FreeBSD */
 137
 138 #if BSD > 199306 && defined(__FreeBSD__)
 139 /*---------------------------------------------------------------------------*
 140  *      initialization at kernel load time
 141  *---------------------------------------------------------------------------*/
 142 static void
 143 i4bctlinit(void *unused)
 144 {
 145 #if defined (__FreeBSD_version) && __FreeBSD_version >= 400006
 146         cdevsw_add(&i4bctl_cdevsw);
 147 #else
 148         dev_t dev = makedev(CDEV_MAJOR, 0);
 149         cdevsw_add(&dev, &i4bctl_cdevsw, NULL);
 150 #endif
 151 }
 152
 153 SYSINIT(i4bctldev, SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, &i4bctlinit, NULL);
 154
 155 #endif /* BSD > 199306 && defined(__FreeBSD__) */
 156
 157 #ifdef __bsdi__
 158 int i4bctlmatch(struct device *parent, struct cfdata *cf, void *aux);
 159 void dummy_i4bctlattach(struct device*, struct device *, void *);
 160
 161 #define CDEV_MAJOR 64
 162
 163 static struct cfdriver i4bctlcd =
 164         { NULL, "i4bctl", i4bctlmatch, dummy_i4bctlattach, DV_DULL,
 165           sizeof(struct cfdriver) };
 166 struct devsw i4bctlsw =
 167         { &i4bctlcd,
 168           i4bctlopen,   i4bctlclose,    noread,         nowrite,
 169           i4bctlioctl,  seltrue,        nommap,         nostrat,
 170           nodump,       nopsize,        0,              nostop
 171 };
 172
 173 int
 174 i4bctlmatch(struct device *parent, struct cfdata *cf, void *aux)
 175 {
 176         printf("i4bctlmatch: aux=0x%x\n", aux);
 177         return 1;
 178 }
 179 void
 180 dummy_i4bctlattach(struct device *parent, struct device *self, void *aux)
 181 {
 182         printf("dummy_i4bctlattach: aux=0x%x\n", aux);
 183 }
 184 #endif /* __bsdi__ */
 185 /*---------------------------------------------------------------------------*
 186  *      interface attach routine
 187  *---------------------------------------------------------------------------*/
 188 PDEVSTATIC void
 189 #ifdef __FreeBSD__
 190 i4bctlattach(void *dummy)
 191 #else
 192 i4bctlattach()
 193 #endif
 194 {
 195 #ifndef HACK_NO_PSEUDO_ATTACH_MSG
 196         printf("i4bctl: ISDN system control port attached\n");
 197 #endif
 198         make_dev(&i4bctl_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "i4bctl");
 199 }
 200
 201 /*---------------------------------------------------------------------------*
 202  *      i4bctlopen - device driver open routine
 203  *---------------------------------------------------------------------------*/
 204 PDEVSTATIC int
 205 i4bctlopen(dev_t dev, int flag, int fmt, struct proc *p)
 206 {
 207         if(minor(dev))
 208                 return (ENXIO);
 209
 210         if(openflag)
 211                 return (EBUSY);
 212
 213         openflag = 1;
 214
 215         return (0);
 216 }
 217
 218 /*---------------------------------------------------------------------------*
 219  *      i4bctlclose - device driver close routine
 220  *---------------------------------------------------------------------------*/
 221 PDEVSTATIC int
 222 i4bctlclose(dev_t dev, int flag, int fmt, struct proc *p)
 223 {
 224         openflag = 0;
 225         return (0);
 226 }
 227
 228 /*---------------------------------------------------------------------------*
 229  *      i4bctlioctl - device driver ioctl routine
 230  *---------------------------------------------------------------------------*/
 231 PDEVSTATIC int
 232 #if defined (__FreeBSD_version) && __FreeBSD_version >= 300003
 233 i4bctlioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
 234 #elif defined(__bsdi__)
 235 i4bctlioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
 236 #else
 237 i4bctlioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
 238 #endif
 239 {
 240         ctl_debug_t *cdbg;
 241         int error = 0;
 242
 243 #ifndef DO_I4B_DEBUG
 244        return(ENODEV);
 245 #else
 246         if(minor(dev))
 247                 return(ENODEV);
 248
 249         switch(cmd)
 250         {
 251                 case I4B_CTL_GET_DEBUG:
 252                         cdbg = (ctl_debug_t *)data;
 253                         cdbg->l1 = i4b_l1_debug;
 254                         cdbg->l2 = i4b_l2_debug;
 255                         cdbg->l3 = i4b_l3_debug;
 256                         cdbg->l4 = i4b_l4_debug;
 257                         break;
 258
 259                 case I4B_CTL_SET_DEBUG:
 260                         cdbg = (ctl_debug_t *)data;
 261                         i4b_l1_debug = cdbg->l1;
 262                         i4b_l2_debug = cdbg->l2;
 263                         i4b_l3_debug = cdbg->l3;
 264                         i4b_l4_debug = cdbg->l4;
 265                         break;
 266
 267                 case I4B_CTL_GET_HSCXSTAT:
 268                 {
 269                         hscxstat_t *hst;
 270                         struct isic_softc *sc;
 271                         hst = (hscxstat_t *)data;
 272
 273                         if( hst->unit < 0               ||
 274                             hst->unit > ISIC_MAXUNIT    ||
 275                             hst->chan < 0               ||
 276                             hst->chan > 1 )
 277                         {
 278                                 error = EINVAL;
 279                                 break;
 280                         }
 281
 282 #ifndef __FreeBSD__
 283                         sc = isic_find_sc(hst->unit);
 284 #else
 285                         sc = &isic_sc[hst->unit];
 286 #endif
 287                         hst->vfr = sc->sc_chan[hst->chan].stat_VFR;
 288                         hst->rdo = sc->sc_chan[hst->chan].stat_RDO;
 289                         hst->crc = sc->sc_chan[hst->chan].stat_CRC;
 290                         hst->rab = sc->sc_chan[hst->chan].stat_RAB;
 291                         hst->xdu = sc->sc_chan[hst->chan].stat_XDU;
 292                         hst->rfo = sc->sc_chan[hst->chan].stat_RFO;
 293                         break;
 294                 }
 295
 296                 case I4B_CTL_CLR_HSCXSTAT:
 297                 {
 298                         hscxstat_t *hst;
 299                         struct isic_softc *sc;
 300                         hst = (hscxstat_t *)data;
 301
 302                         if( hst->unit < 0               ||
 303                             hst->unit > ISIC_MAXUNIT    ||
 304                             hst->chan < 0               ||
 305                             hst->chan > 1 )
 306                         {
 307                                 error = EINVAL;
 308                                 break;
 309                         }
 310
 311 #ifndef __FreeBSD__
 312                         sc = isic_find_sc(hst->unit);
 313 #else
 314                         sc = &isic_sc[hst->unit];
 315 #endif
 316
 317                         sc->sc_chan[hst->chan].stat_VFR = 0;
 318                         sc->sc_chan[hst->chan].stat_RDO = 0;
 319                         sc->sc_chan[hst->chan].stat_CRC = 0;
 320                         sc->sc_chan[hst->chan].stat_RAB = 0;
 321                         sc->sc_chan[hst->chan].stat_XDU = 0;
 322                         sc->sc_chan[hst->chan].stat_RFO = 0;
 323
 324                         break;
 325                 }
 326
 327                 case I4B_CTL_GET_LAPDSTAT:
 328                 {
 329                         l2stat_t *l2s;
 330                         l2_softc_t *sc;
 331                         l2s = (l2stat_t *)data;
 332
 333                         if( l2s->unit < 0 || l2s->unit > ISIC_MAXUNIT)
 334                         {
 335                                 error = EINVAL;
 336                                 break;
 337                         }
 338
 339                         sc = &l2_softc[l2s->unit];
 340
 341                         bcopy(&sc->stat, &l2s->lapdstat, sizeof(lapdstat_t));
 342                         break;
 343                 }
 344
 345                 case I4B_CTL_CLR_LAPDSTAT:
 346                 {
 347                         int *up;
 348                         l2_softc_t *sc;
 349                         up = (int *)data;
 350
 351                         if( *up < 0 || *up > ISIC_MAXUNIT)
 352                         {
 353                                 error = EINVAL;
 354                                 break;
 355                         }
 356
 357                         sc = &l2_softc[*up];
 358
 359                         bzero(&sc->stat, sizeof(lapdstat_t));
 360                         break;
 361                 }
 362
 363                 default:
 364                         error = ENOTTY;
 365                         break;
 366         }
 367         return(error);
 368 #endif DO_I4B_DEBUG
 369 }
 370
 371 #if defined(__FreeBSD__) && defined(OS_USES_POLL)
 372
 373 /*---------------------------------------------------------------------------*
 374  *      i4bctlpoll - device driver poll routine
 375  *---------------------------------------------------------------------------*/
 376 static int
 377 i4bctlpoll (dev_t dev, int events, struct proc *p)
 378 {
 379         return (ENODEV);
 380 }
 381
 382 #endif
 383
 384 #endif /* NI4BCTL > 0 */