drivers/isdn/capi/capidrv.c

   1 /* $Id: capidrv.c,v 1.1.2.2 2004/01/12 23:17:24 keil Exp $
   2  *
   3  * ISDN4Linux Driver, using capi20 interface (kernelcapi)
   4  *
   5  * Copyright 1997 by Carsten Paeth <calle@calle.de>
   6  *
   7  * This software may be used and distributed according to the terms
   8  * of the GNU General Public License, incorporated herein by reference.
   9  *
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/errno.h>
  14 #include <linux/kernel.h>
  15 #include <linux/major.h>
  16 #include <linux/slab.h>
  17 #include <linux/fcntl.h>
  18 #include <linux/fs.h>
  19 #include <linux/signal.h>
  20 #include <linux/mm.h>
  21 #include <linux/timer.h>
  22 #include <linux/wait.h>
  23 #include <linux/skbuff.h>
  24 #include <linux/isdn.h>
  25 #include <linux/isdnif.h>
  26 #include <linux/proc_fs.h>
  27 #include <linux/capi.h>
  28 #include <linux/kernelcapi.h>
  29 #include <linux/ctype.h>
  30 #include <linux/init.h>
  31 #include <linux/moduleparam.h>
  32
  33 #include <linux/isdn/capiutil.h>
  34 #include <linux/isdn/capicmd.h>
  35 #include "capidrv.h"
  36
  37 static char *revision = "$Revision: 1.1.2.2 $";
  38 static int debugmode = 0;
  39
  40 MODULE_DESCRIPTION("CAPI4Linux: Interface to ISDN4Linux");
  41 MODULE_AUTHOR("Carsten Paeth");
  42 MODULE_LICENSE("GPL");
  43 module_param(debugmode, uint, 0);
  44
  45 /* -------- type definitions ----------------------------------------- */
  46
  47
  48 struct capidrv_contr {
  49
  50         struct capidrv_contr *next;
  51         struct module *owner;
  52         u32 contrnr;
  53         char name[20];
  54
  55         /*
  56          * for isdn4linux
  57          */
  58         isdn_if interface;
  59         int myid;
  60
  61         /*
  62          * LISTEN state
  63          */
  64         int state;
  65         u32 cipmask;
  66         u32 cipmask2;
  67         struct timer_list listentimer;
  68
  69         /*
  70          * ID of capi message sent
  71          */
  72         u16 msgid;
  73
  74         /*
  75          * B-Channels
  76          */
  77         int nbchan;
  78         struct capidrv_bchan {
  79                 struct capidrv_contr *contr;
  80                 u8 msn[ISDN_MSNLEN];
  81                 int l2;
  82                 int l3;
  83                 u8 num[ISDN_MSNLEN];
  84                 u8 mynum[ISDN_MSNLEN];
  85                 int si1;
  86                 int si2;
  87                 int incoming;
  88                 int disconnecting;
  89                 struct capidrv_plci {
  90                         struct capidrv_plci *next;
  91                         u32 plci;
  92                         u32 ncci;       /* ncci for CONNECT_ACTIVE_IND */
  93                         u16 msgid;      /* to identfy CONNECT_CONF */
  94                         int chan;
  95                         int state;
  96                         int leasedline;
  97                         struct capidrv_ncci {
  98                                 struct capidrv_ncci *next;
  99                                 struct capidrv_plci *plcip;
 100                                 u32 ncci;
 101                                 u16 msgid;      /* to identfy CONNECT_B3_CONF */
 102                                 int chan;
 103                                 int state;
 104                                 int oldstate;
 105                                 /* */
 106                                 u16 datahandle;
 107                                 struct ncci_datahandle_queue {
 108                                     struct ncci_datahandle_queue *next;
 109                                     u16                         datahandle;
 110                                     int                           len;
 111                                 } *ackqueue;
 112                         } *ncci_list;
 113                 } *plcip;
 114                 struct capidrv_ncci *nccip;
 115         } *bchans;
 116
 117         struct capidrv_plci *plci_list;
 118
 119         /* for q931 data */
 120         u8  q931_buf[4096];
 121         u8 *q931_read;
 122         u8 *q931_write;
 123         u8 *q931_end;
 124 };
 125
 126
 127 struct capidrv_data {
 128         struct capi20_appl ap;
 129         int ncontr;
 130         struct capidrv_contr *contr_list;
 131 };
 132
 133 typedef struct capidrv_plci capidrv_plci;
 134 typedef struct capidrv_ncci capidrv_ncci;
 135 typedef struct capidrv_contr capidrv_contr;
 136 typedef struct capidrv_data capidrv_data;
 137 typedef struct capidrv_bchan capidrv_bchan;
 138
 139 /* -------- data definitions ----------------------------------------- */
 140
 141 static capidrv_data global;
 142 static DEFINE_SPINLOCK(global_lock);
 143
 144 static void handle_dtrace_data(capidrv_contr *card,
 145         int send, int level2, u8 *data, u16 len);
 146
 147 /* -------- convert functions ---------------------------------------- */
 148
 149 static inline u32 b1prot(int l2, int l3)
 150 {
 151         switch (l2) {
 152         case ISDN_PROTO_L2_X75I:
 153         case ISDN_PROTO_L2_X75UI:
 154         case ISDN_PROTO_L2_X75BUI:
 155                 return 0;
 156         case ISDN_PROTO_L2_HDLC:
 157         default:
 158                 return 0;
 159         case ISDN_PROTO_L2_TRANS:
 160                 return 1;
 161         case ISDN_PROTO_L2_V11096:
 162         case ISDN_PROTO_L2_V11019:
 163         case ISDN_PROTO_L2_V11038:
 164                 return 2;
 165         case ISDN_PROTO_L2_FAX:
 166                 return 4;
 167         case ISDN_PROTO_L2_MODEM:
 168                 return 8;
 169         }
 170 }
 171
 172 static inline u32 b2prot(int l2, int l3)
 173 {
 174         switch (l2) {
 175         case ISDN_PROTO_L2_X75I:
 176         case ISDN_PROTO_L2_X75UI:
 177         case ISDN_PROTO_L2_X75BUI:
 178         default:
 179                 return 0;
 180         case ISDN_PROTO_L2_HDLC:
 181         case ISDN_PROTO_L2_TRANS:
 182         case ISDN_PROTO_L2_V11096:
 183         case ISDN_PROTO_L2_V11019:
 184         case ISDN_PROTO_L2_V11038:
 185         case ISDN_PROTO_L2_MODEM:
 186                 return 1;
 187         case ISDN_PROTO_L2_FAX:
 188                 return 4;
 189         }
 190 }
 191
 192 static inline u32 b3prot(int l2, int l3)
 193 {
 194         switch (l2) {
 195         case ISDN_PROTO_L2_X75I:
 196         case ISDN_PROTO_L2_X75UI:
 197         case ISDN_PROTO_L2_X75BUI:
 198         case ISDN_PROTO_L2_HDLC:
 199         case ISDN_PROTO_L2_TRANS:
 200         case ISDN_PROTO_L2_V11096:
 201         case ISDN_PROTO_L2_V11019:
 202         case ISDN_PROTO_L2_V11038:
 203         case ISDN_PROTO_L2_MODEM:
 204         default:
 205                 return 0;
 206         case ISDN_PROTO_L2_FAX:
 207                 return 4;
 208         }
 209 }
 210
 211 static _cstruct b1config_async_v110(u16 rate)
 212 {
 213         /* CAPI-Spec "B1 Configuration" */
 214         static unsigned char buf[9];
 215         buf[0] = 8; /* len */
 216         /* maximum bitrate */
 217         buf[1] = rate & 0xff; buf[2] = (rate >> 8) & 0xff;
 218         buf[3] = 8; buf[4] = 0; /* 8 bits per character */
 219         buf[5] = 0; buf[6] = 0; /* parity none */
 220         buf[7] = 0; buf[8] = 0; /* 1 stop bit */
 221         return buf;
 222 }
 223
 224 static _cstruct b1config(int l2, int l3)
 225 {
 226         switch (l2) {
 227         case ISDN_PROTO_L2_X75I:
 228         case ISDN_PROTO_L2_X75UI:
 229         case ISDN_PROTO_L2_X75BUI:
 230         case ISDN_PROTO_L2_HDLC:
 231         case ISDN_PROTO_L2_TRANS:
 232         default:
 233                 return NULL;
 234         case ISDN_PROTO_L2_V11096:
 235             return b1config_async_v110(9600);
 236         case ISDN_PROTO_L2_V11019:
 237             return b1config_async_v110(19200);
 238         case ISDN_PROTO_L2_V11038:
 239             return b1config_async_v110(38400);
 240         }
 241 }
 242
 243 static inline u16 si2cip(u8 si1, u8 si2)
 244 {
 245         static const u8 cip[17][5] =
 246         {
 247         /*  0  1  2  3  4  */
 248                 {0, 0, 0, 0, 0},        /*0 */
 249                 {16, 16, 4, 26, 16},    /*1 */
 250                 {17, 17, 17, 4, 4},     /*2 */
 251                 {2, 2, 2, 2, 2},        /*3 */
 252                 {18, 18, 18, 18, 18},   /*4 */
 253                 {2, 2, 2, 2, 2},        /*5 */
 254                 {0, 0, 0, 0, 0},        /*6 */
 255                 {2, 2, 2, 2, 2},        /*7 */
 256                 {2, 2, 2, 2, 2},        /*8 */
 257                 {21, 21, 21, 21, 21},   /*9 */
 258                 {19, 19, 19, 19, 19},   /*10 */
 259                 {0, 0, 0, 0, 0},        /*11 */
 260                 {0, 0, 0, 0, 0},        /*12 */
 261                 {0, 0, 0, 0, 0},        /*13 */
 262                 {0, 0, 0, 0, 0},        /*14 */
 263                 {22, 22, 22, 22, 22},   /*15 */
 264                 {27, 27, 27, 28, 27}    /*16 */
 265         };
 266         if (si1 > 16)
 267                 si1 = 0;
 268         if (si2 > 4)
 269                 si2 = 0;
 270
 271         return (u16) cip[si1][si2];
 272 }
 273
 274 static inline u8 cip2si1(u16 cipval)
 275 {
 276         static const u8 si[32] =
 277         {7, 1, 7, 7, 1, 1, 7, 7,        /*0-7 */
 278          7, 1, 0, 0, 0, 0, 0, 0,        /*8-15 */
 279          1, 2, 4, 10, 9, 9, 15, 7,      /*16-23 */
 280          7, 7, 1, 16, 16, 0, 0, 0};     /*24-31 */
 281
 282         if (cipval > 31)
 283                 cipval = 0;     /* .... */
 284         return si[cipval];
 285 }
 286
 287 static inline u8 cip2si2(u16 cipval)
 288 {
 289         static const u8 si[32] =
 290         {0, 0, 0, 0, 2, 3, 0, 0,        /*0-7 */
 291          0, 3, 0, 0, 0, 0, 0, 0,        /*8-15 */
 292          1, 2, 0, 0, 9, 0, 0, 0,        /*16-23 */
 293          0, 0, 3, 2, 3, 0, 0, 0};       /*24-31 */
 294
 295         if (cipval > 31)
 296                 cipval = 0;     /* .... */
 297         return si[cipval];
 298 }
 299
 300
 301 /* -------- controller management ------------------------------------- */
 302
 303 static inline capidrv_contr *findcontrbydriverid(int driverid)
 304 {
 305         unsigned long flags;
 306         capidrv_contr *p;
 307
 308         spin_lock_irqsave(&global_lock, flags);
 309         for (p = global.contr_list; p; p = p->next)
 310                 if (p->myid == driverid)
 311                         break;
 312         spin_unlock_irqrestore(&global_lock, flags);
 313         return p;
 314 }
 315
 316 static capidrv_contr *findcontrbynumber(u32 contr)
 317 {
 318         unsigned long flags;
 319         capidrv_contr *p = global.contr_list;
 320
 321         spin_lock_irqsave(&global_lock, flags);
 322         for (p = global.contr_list; p; p = p->next)
 323                 if (p->contrnr == contr)
 324                         break;
 325         spin_unlock_irqrestore(&global_lock, flags);
 326         return p;
 327 }
 328
 329
 330 /* -------- plci management ------------------------------------------ */
 331
 332 static capidrv_plci *new_plci(capidrv_contr * card, int chan)
 333 {
 334         capidrv_plci *plcip;
 335
 336         plcip = kzalloc(sizeof(capidrv_plci), GFP_ATOMIC);
 337
 338         if (plcip == 0)
 339                 return NULL;
 340
 341         plcip->state = ST_PLCI_NONE;
 342         plcip->plci = 0;
 343         plcip->msgid = 0;
 344         plcip->chan = chan;
 345         plcip->next = card->plci_list;
 346         card->plci_list = plcip;
 347         card->bchans[chan].plcip = plcip;
 348
 349         return plcip;
 350 }
 351
 352 static capidrv_plci *find_plci_by_plci(capidrv_contr * card, u32 plci)
 353 {
 354         capidrv_plci *p;
 355         for (p = card->plci_list; p; p = p->next)
 356                 if (p->plci == plci)
 357                         return p;
 358         return NULL;
 359 }
 360
 361 static capidrv_plci *find_plci_by_msgid(capidrv_contr * card, u16 msgid)
 362 {
 363         capidrv_plci *p;
 364         for (p = card->plci_list; p; p = p->next)
 365                 if (p->msgid == msgid)
 366                         return p;
 367         return NULL;
 368 }
 369
 370 static capidrv_plci *find_plci_by_ncci(capidrv_contr * card, u32 ncci)
 371 {
 372         capidrv_plci *p;
 373         for (p = card->plci_list; p; p = p->next)
 374                 if (p->plci == (ncci & 0xffff))
 375                         return p;
 376         return NULL;
 377 }
 378
 379 static void free_plci(capidrv_contr * card, capidrv_plci * plcip)
 380 {
 381         capidrv_plci **pp;
 382
 383         for (pp = &card->plci_list; *pp; pp = &(*pp)->next) {
 384                 if (*pp == plcip) {
 385                         *pp = (*pp)->next;
 386                         card->bchans[plcip->chan].plcip = NULL;
 387                         card->bchans[plcip->chan].disconnecting = 0;
 388                         card->bchans[plcip->chan].incoming = 0;
 389                         kfree(plcip);
 390                         return;
 391                 }
 392         }
 393         printk(KERN_ERR "capidrv-%d: free_plci %p (0x%x) not found, Huh?\n",
 394                card->contrnr, plcip, plcip->plci);
 395 }
 396
 397 /* -------- ncci management ------------------------------------------ */
 398
 399 static inline capidrv_ncci *new_ncci(capidrv_contr * card,
 400                                      capidrv_plci * plcip,
 401                                      u32 ncci)
 402 {
 403         capidrv_ncci *nccip;
 404
 405         nccip = kzalloc(sizeof(capidrv_ncci), GFP_ATOMIC);
 406
 407         if (nccip == 0)
 408                 return NULL;
 409
 410         nccip->ncci = ncci;
 411         nccip->state = ST_NCCI_NONE;
 412         nccip->plcip = plcip;
 413         nccip->chan = plcip->chan;
 414         nccip->datahandle = 0;
 415
 416         nccip->next = plcip->ncci_list;
 417         plcip->ncci_list = nccip;
 418
 419         card->bchans[plcip->chan].nccip = nccip;
 420
 421         return nccip;
 422 }
 423
 424 static inline capidrv_ncci *find_ncci(capidrv_contr * card, u32 ncci)
 425 {
 426         capidrv_plci *plcip;
 427         capidrv_ncci *p;
 428
 429         if ((plcip = find_plci_by_ncci(card, ncci)) == 0)
 430                 return NULL;
 431
 432         for (p = plcip->ncci_list; p; p = p->next)
 433                 if (p->ncci == ncci)
 434                         return p;
 435         return NULL;
 436 }
 437
 438 static inline capidrv_ncci *find_ncci_by_msgid(capidrv_contr * card,
 439                                                u32 ncci, u16 msgid)
 440 {
 441         capidrv_plci *plcip;
 442         capidrv_ncci *p;
 443
 444         if ((plcip = find_plci_by_ncci(card, ncci)) == 0)
 445                 return NULL;
 446
 447         for (p = plcip->ncci_list; p; p = p->next)
 448                 if (p->msgid == msgid)
 449                         return p;
 450         return NULL;
 451 }
 452
 453 static void free_ncci(capidrv_contr * card, struct capidrv_ncci *nccip)
 454 {
 455         struct capidrv_ncci **pp;
 456
 457         for (pp = &(nccip->plcip->ncci_list); *pp; pp = &(*pp)->next) {
 458                 if (*pp == nccip) {
 459                         *pp = (*pp)->next;
 460                         break;
 461                 }
 462         }
 463         card->bchans[nccip->chan].nccip = NULL;
 464         kfree(nccip);
 465 }
 466
 467 static int capidrv_add_ack(struct capidrv_ncci *nccip,
 468                            u16 datahandle, int len)
 469 {
 470         struct ncci_datahandle_queue *n, **pp;
 471
 472         n = (struct ncci_datahandle_queue *)
 473                 kmalloc(sizeof(struct ncci_datahandle_queue), GFP_ATOMIC);
 474         if (!n) {
 475            printk(KERN_ERR "capidrv: kmalloc ncci_datahandle failed\n");
 476            return -1;
 477         }
 478         n->next = NULL;
 479         n->datahandle = datahandle;
 480         n->len = len;
 481         for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) ;
 482         *pp = n;
 483         return 0;
 484 }
 485
 486 static int capidrv_del_ack(struct capidrv_ncci *nccip, u16 datahandle)
 487 {
 488         struct ncci_datahandle_queue **pp, *p;
 489         int len;
 490
 491         for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) {
 492                 if ((*pp)->datahandle == datahandle) {
 493                         p = *pp;
 494                         len = p->len;
 495                         *pp = (*pp)->next;
 496                         kfree(p);
 497                         return len;
 498                 }
 499         }
 500         return -1;
 501 }
 502
 503 /* -------- convert and send capi message ---------------------------- */
 504
 505 static void send_message(capidrv_contr * card, _cmsg * cmsg)
 506 {
 507         struct sk_buff *skb;
 508         size_t len;
 509         capi_cmsg2message(cmsg, cmsg->buf);
 510         len = CAPIMSG_LEN(cmsg->buf);
 511         skb = alloc_skb(len, GFP_ATOMIC);
 512         memcpy(skb_put(skb, len), cmsg->buf, len);
 513         if (capi20_put_message(&global.ap, skb) != CAPI_NOERROR)
 514                 kfree_skb(skb);
 515 }
 516
 517 /* -------- state machine -------------------------------------------- */
 518
 519 struct listenstatechange {
 520         int actstate;
 521         int nextstate;
 522         int event;
 523 };
 524
 525 static struct listenstatechange listentable[] =
 526 {
 527   {ST_LISTEN_NONE, ST_LISTEN_WAIT_CONF, EV_LISTEN_REQ},
 528   {ST_LISTEN_ACTIVE, ST_LISTEN_ACTIVE_WAIT_CONF, EV_LISTEN_REQ},
 529   {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_ERROR},
 530   {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_ERROR},
 531   {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
 532   {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
 533   {ST_LISTEN_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
 534   {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
 535   {},
 536 };
 537
 538 static void listen_change_state(capidrv_contr * card, int event)
 539 {
 540         struct listenstatechange *p = listentable;
 541         while (p->event) {
 542                 if (card->state == p->actstate && p->event == event) {
 543                         if (debugmode)
 544                                 printk(KERN_DEBUG "capidrv-%d: listen_change_state %d -> %d\n",
 545                                        card->contrnr, card->state, p->nextstate);
 546                         card->state = p->nextstate;
 547                         return;
 548                 }
 549                 p++;
 550         }
 551         printk(KERN_ERR "capidrv-%d: listen_change_state state=%d event=%d ????\n",
 552                card->contrnr, card->state, event);
 553
 554 }
 555
 556 /* ------------------------------------------------------------------ */
 557
 558 static void p0(capidrv_contr * card, capidrv_plci * plci)
 559 {
 560         isdn_ctrl cmd;
 561
 562         card->bchans[plci->chan].contr = NULL;
 563         cmd.command = ISDN_STAT_DHUP;
 564         cmd.driver = card->myid;
 565         cmd.arg = plci->chan;
 566         card->interface.statcallb(&cmd);
 567         free_plci(card, plci);
 568 }
 569
 570 /* ------------------------------------------------------------------ */
 571
 572 struct plcistatechange {
 573         int actstate;
 574         int nextstate;
 575         int event;
 576         void (*changefunc) (capidrv_contr * card, capidrv_plci * plci);
 577 };
 578
 579 static struct plcistatechange plcitable[] =
 580 {
 581   /* P-0 */
 582   {ST_PLCI_NONE, ST_PLCI_OUTGOING, EV_PLCI_CONNECT_REQ, NULL},
 583   {ST_PLCI_NONE, ST_PLCI_ALLOCATED, EV_PLCI_FACILITY_IND_UP, NULL},
 584   {ST_PLCI_NONE, ST_PLCI_INCOMING, EV_PLCI_CONNECT_IND, NULL},
 585   {ST_PLCI_NONE, ST_PLCI_RESUMEING, EV_PLCI_RESUME_REQ, NULL},
 586   /* P-0.1 */
 587   {ST_PLCI_OUTGOING, ST_PLCI_NONE, EV_PLCI_CONNECT_CONF_ERROR, p0},
 588   {ST_PLCI_OUTGOING, ST_PLCI_ALLOCATED, EV_PLCI_CONNECT_CONF_OK, NULL},
 589   /* P-1 */
 590   {ST_PLCI_ALLOCATED, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
 591   {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
 592   {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
 593   {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
 594   /* P-ACT */
 595   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
 596   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
 597   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
 598   {ST_PLCI_ACTIVE, ST_PLCI_HELD, EV_PLCI_HOLD_IND, NULL},
 599   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_SUSPEND_IND, NULL},
 600   /* P-2 */
 601   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
 602   {ST_PLCI_INCOMING, ST_PLCI_FACILITY_IND, EV_PLCI_FACILITY_IND_UP, NULL},
 603   {ST_PLCI_INCOMING, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_RESP, NULL},
 604   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
 605   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
 606   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
 607   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CD_IND, NULL},
 608   /* P-3 */
 609   {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
 610   {ST_PLCI_FACILITY_IND, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
 611   {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
 612   {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
 613   {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
 614   /* P-4 */
 615   {ST_PLCI_ACCEPTING, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
 616   {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
 617   {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
 618   {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
 619   /* P-5 */
 620   {ST_PLCI_DISCONNECTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
 621   /* P-6 */
 622   {ST_PLCI_DISCONNECTED, ST_PLCI_NONE, EV_PLCI_DISCONNECT_RESP, p0},
 623   /* P-0.Res */
 624   {ST_PLCI_RESUMEING, ST_PLCI_NONE, EV_PLCI_RESUME_CONF_ERROR, p0},
 625   {ST_PLCI_RESUMEING, ST_PLCI_RESUME, EV_PLCI_RESUME_CONF_OK, NULL},
 626   /* P-RES */
 627   {ST_PLCI_RESUME, ST_PLCI_ACTIVE, EV_PLCI_RESUME_IND, NULL},
 628   /* P-HELD */
 629   {ST_PLCI_HELD, ST_PLCI_ACTIVE, EV_PLCI_RETRIEVE_IND, NULL},
 630   {},
 631 };
 632
 633 static void plci_change_state(capidrv_contr * card, capidrv_plci * plci, int event)
 634 {
 635         struct plcistatechange *p = plcitable;
 636         while (p->event) {
 637                 if (plci->state == p->actstate && p->event == event) {
 638                         if (debugmode)
 639                                 printk(KERN_DEBUG "capidrv-%d: plci_change_state:0x%x %d -> %d\n",
 640                                   card->contrnr, plci->plci, plci->state, p->nextstate);
 641                         plci->state = p->nextstate;
 642                         if (p->changefunc)
 643                                 p->changefunc(card, plci);
 644                         return;
 645                 }
 646                 p++;
 647         }
 648         printk(KERN_ERR "capidrv-%d: plci_change_state:0x%x state=%d event=%d ????\n",
 649                card->contrnr, plci->plci, plci->state, event);
 650 }
 651
 652 /* ------------------------------------------------------------------ */
 653
 654 static _cmsg cmsg;
 655
 656 static void n0(capidrv_contr * card, capidrv_ncci * ncci)
 657 {
 658         isdn_ctrl cmd;
 659
 660         capi_fill_DISCONNECT_REQ(&cmsg,
 661                                  global.ap.applid,
 662                                  card->msgid++,
 663                                  ncci->plcip->plci,
 664                                  NULL,  /* BChannelinformation */
 665                                  NULL,  /* Keypadfacility */
 666                                  NULL,  /* Useruserdata */   /* $$$$ */
 667                                  NULL   /* Facilitydataarray */
 668         );
 669         send_message(card, &cmsg);
 670         plci_change_state(card, ncci->plcip, EV_PLCI_DISCONNECT_REQ);
 671
 672         cmd.command = ISDN_STAT_BHUP;
 673         cmd.driver = card->myid;
 674         cmd.arg = ncci->chan;
 675         card->interface.statcallb(&cmd);
 676         free_ncci(card, ncci);
 677 }
 678
 679 /* ------------------------------------------------------------------ */
 680
 681 struct nccistatechange {
 682         int actstate;
 683         int nextstate;
 684         int event;
 685         void (*changefunc) (capidrv_contr * card, capidrv_ncci * ncci);
 686 };
 687
 688 static struct nccistatechange nccitable[] =
 689 {
 690   /* N-0 */
 691   {ST_NCCI_NONE, ST_NCCI_OUTGOING, EV_NCCI_CONNECT_B3_REQ, NULL},
 692   {ST_NCCI_NONE, ST_NCCI_INCOMING, EV_NCCI_CONNECT_B3_IND, NULL},
 693   /* N-0.1 */
 694   {ST_NCCI_OUTGOING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_CONF_OK, NULL},
 695   {ST_NCCI_OUTGOING, ST_NCCI_NONE, EV_NCCI_CONNECT_B3_CONF_ERROR, n0},
 696   /* N-1 */
 697   {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_CONNECT_B3_REJECT, NULL},
 698   {ST_NCCI_INCOMING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_RESP, NULL},
 699   {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
 700   {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
 701   /* N-2 */
 702   {ST_NCCI_ALLOCATED, ST_NCCI_ACTIVE, EV_NCCI_CONNECT_B3_ACTIVE_IND, NULL},
 703   {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
 704   {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
 705   /* N-ACT */
 706   {ST_NCCI_ACTIVE, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
 707   {ST_NCCI_ACTIVE, ST_NCCI_RESETING, EV_NCCI_RESET_B3_REQ, NULL},
 708   {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
 709   {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
 710   /* N-3 */
 711   {ST_NCCI_RESETING, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
 712   {ST_NCCI_RESETING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
 713   {ST_NCCI_RESETING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
 714   /* N-4 */
 715   {ST_NCCI_DISCONNECTING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
 716   {ST_NCCI_DISCONNECTING, ST_NCCI_PREVIOUS, EV_NCCI_DISCONNECT_B3_CONF_ERROR,NULL},
 717   /* N-5 */
 718   {ST_NCCI_DISCONNECTED, ST_NCCI_NONE, EV_NCCI_DISCONNECT_B3_RESP, n0},
 719   {},
 720 };
 721
 722 static void ncci_change_state(capidrv_contr * card, capidrv_ncci * ncci, int event)
 723 {
 724         struct nccistatechange *p = nccitable;
 725         while (p->event) {
 726                 if (ncci->state == p->actstate && p->event == event) {
 727                         if (debugmode)
 728                                 printk(KERN_DEBUG "capidrv-%d: ncci_change_state:0x%x %d -> %d\n",
 729                                   card->contrnr, ncci->ncci, ncci->state, p->nextstate);
 730                         if (p->nextstate == ST_NCCI_PREVIOUS) {
 731                                 ncci->state = ncci->oldstate;
 732                                 ncci->oldstate = p->actstate;
 733                         } else {
 734                                 ncci->oldstate = p->actstate;
 735                                 ncci->state = p->nextstate;
 736                         }
 737                         if (p->changefunc)
 738                                 p->changefunc(card, ncci);
 739                         return;
 740                 }
 741                 p++;
 742         }
 743         printk(KERN_ERR "capidrv-%d: ncci_change_state:0x%x state=%d event=%d ????\n",
 744                card->contrnr, ncci->ncci, ncci->state, event);
 745 }
 746
 747 /* ------------------------------------------------------------------- */
 748
 749 static inline int new_bchan(capidrv_contr * card)
 750 {
 751         int i;
 752         for (i = 0; i < card->nbchan; i++) {
 753                 if (card->bchans[i].plcip == 0) {
 754                         card->bchans[i].disconnecting = 0;
 755                         return i;
 756                 }
 757         }
 758         return -1;
 759 }
 760
 761 /* ------------------------------------------------------------------- */
 762
 763 static void handle_controller(_cmsg * cmsg)
 764 {
 765         capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
 766
 767         if (!card) {
 768                 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
 769                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
 770                        cmsg->adr.adrController & 0x7f);
 771                 return;
 772         }
 773         switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
 774
 775         case CAPI_LISTEN_CONF:  /* Controller */
 776                 if (debugmode)
 777                         printk(KERN_DEBUG "capidrv-%d: listenconf Info=0x%4x (%s) cipmask=0x%x\n",
 778                                card->contrnr, cmsg->Info, capi_info2str(cmsg->Info), card->cipmask);
 779                 if (cmsg->Info) {
 780                         listen_change_state(card, EV_LISTEN_CONF_ERROR);
 781                 } else if (card->cipmask == 0) {
 782                         listen_change_state(card, EV_LISTEN_CONF_EMPTY);
 783                 } else {
 784                         listen_change_state(card, EV_LISTEN_CONF_OK);
 785                 }
 786                 break;
 787
 788         case CAPI_MANUFACTURER_IND:     /* Controller */
 789                 if (   cmsg->ManuID == 0x214D5641
 790                     && cmsg->Class == 0
 791                     && cmsg->Function == 1) {
 792                    u8  *data = cmsg->ManuData+3;
 793                    u16  len = cmsg->ManuData[0];
 794                    u16 layer;
 795                    int direction;
 796                    if (len == 255) {
 797                       len = (cmsg->ManuData[1] | (cmsg->ManuData[2] << 8));
 798                       data += 2;
 799                    }
 800                    len -= 2;
 801                    layer = ((*(data-1)) << 8) | *(data-2);
 802                    if (layer & 0x300)
 803                         direction = (layer & 0x200) ? 0 : 1;
 804                    else direction = (layer & 0x800) ? 0 : 1;
 805                    if (layer & 0x0C00) {
 806                         if ((layer & 0xff) == 0x80) {
 807                            handle_dtrace_data(card, direction, 1, data, len);
 808                            break;
 809                         }
 810                    } else if ((layer & 0xff) < 0x80) {
 811                       handle_dtrace_data(card, direction, 0, data, len);
 812                       break;
 813                    }
 814                    printk(KERN_INFO "capidrv-%d: %s from controller 0x%x layer 0x%x, ignored\n",
 815                         card->contrnr,
 816                         capi_cmd2str(cmsg->Command, cmsg->Subcommand),
 817                         cmsg->adr.adrController, layer);
 818                    break;
 819                 }
 820                 goto ignored;
 821         case CAPI_MANUFACTURER_CONF:    /* Controller */
 822                 if (cmsg->ManuID == 0x214D5641) {
 823                    char *s = NULL;
 824                    switch (cmsg->Class) {
 825                       case 0: break;
 826                       case 1: s = "unknown class"; break;
 827                       case 2: s = "unknown function"; break;
 828                       default: s = "unkown error"; break;
 829                    }
 830                    if (s)
 831                    printk(KERN_INFO "capidrv-%d: %s from controller 0x%x function %d: %s\n",
 832                         card->contrnr,
 833                         capi_cmd2str(cmsg->Command, cmsg->Subcommand),
 834                         cmsg->adr.adrController,
 835                         cmsg->Function, s);
 836                    break;
 837                 }
 838                 goto ignored;
 839         case CAPI_FACILITY_IND: /* Controller/plci/ncci */
 840                 goto ignored;
 841         case CAPI_FACILITY_CONF:        /* Controller/plci/ncci */
 842                 goto ignored;
 843         case CAPI_INFO_IND:     /* Controller/plci */
 844                 goto ignored;
 845         case CAPI_INFO_CONF:    /* Controller/plci */
 846                 goto ignored;
 847
 848         default:
 849                 printk(KERN_ERR "capidrv-%d: got %s from controller 0x%x ???",
 850                        card->contrnr,
 851                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
 852                        cmsg->adr.adrController);
 853         }
 854         return;
 855
 856       ignored:
 857         printk(KERN_INFO "capidrv-%d: %s from controller 0x%x ignored\n",
 858                card->contrnr,
 859                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
 860                cmsg->adr.adrController);
 861 }
 862
 863 static void handle_incoming_call(capidrv_contr * card, _cmsg * cmsg)
 864 {
 865         capidrv_plci *plcip;
 866         capidrv_bchan *bchan;
 867         isdn_ctrl cmd;
 868         int chan;
 869
 870         if ((chan = new_bchan(card)) == -1) {
 871                 printk(KERN_ERR "capidrv-%d: incoming call on not existing bchan ?\n", card->contrnr);
 872                 return;
 873         }
 874         bchan = &card->bchans[chan];
 875         if ((plcip = new_plci(card, chan)) == 0) {
 876                 printk(KERN_ERR "capidrv-%d: incoming call: no memory, sorry.\n", card->contrnr);
 877                 return;
 878         }
 879         bchan->incoming = 1;
 880         plcip->plci = cmsg->adr.adrPLCI;
 881         plci_change_state(card, plcip, EV_PLCI_CONNECT_IND);
 882
 883         cmd.command = ISDN_STAT_ICALL;
 884         cmd.driver = card->myid;
 885         cmd.arg = chan;
 886         memset(&cmd.parm.setup, 0, sizeof(cmd.parm.setup));
 887         strncpy(cmd.parm.setup.phone,
 888                 cmsg->CallingPartyNumber + 3,
 889                 cmsg->CallingPartyNumber[0] - 2);
 890         strncpy(cmd.parm.setup.eazmsn,
 891                 cmsg->CalledPartyNumber + 2,
 892                 cmsg->CalledPartyNumber[0] - 1);
 893         cmd.parm.setup.si1 = cip2si1(cmsg->CIPValue);
 894         cmd.parm.setup.si2 = cip2si2(cmsg->CIPValue);
 895         cmd.parm.setup.plan = cmsg->CallingPartyNumber[1];
 896         cmd.parm.setup.screen = cmsg->CallingPartyNumber[2];
 897
 898         printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s\n",
 899                         card->contrnr,
 900                         cmd.parm.setup.phone,
 901                         cmd.parm.setup.si1,
 902                         cmd.parm.setup.si2,
 903                         cmd.parm.setup.eazmsn);
 904
 905         if (cmd.parm.setup.si1 == 1 && cmd.parm.setup.si2 != 0) {
 906                 printk(KERN_INFO "capidrv-%d: patching si2=%d to 0 for VBOX\n",
 907                         card->contrnr,
 908                         cmd.parm.setup.si2);
 909                 cmd.parm.setup.si2 = 0;
 910         }
 911
 912         switch (card->interface.statcallb(&cmd)) {
 913         case 0:
 914         case 3:
 915                 /* No device matching this call.
 916                  * and isdn_common.c has send a HANGUP command
 917                  * which is ignored in state ST_PLCI_INCOMING,
 918                  * so we send RESP to ignore the call
 919                  */
 920                 capi_cmsg_answer(cmsg);
 921                 cmsg->Reject = 1;       /* ignore */
 922                 send_message(card, cmsg);
 923                 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
 924                 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s ignored\n",
 925                         card->contrnr,
 926                         cmd.parm.setup.phone,
 927                         cmd.parm.setup.si1,
 928                         cmd.parm.setup.si2,
 929                         cmd.parm.setup.eazmsn);
 930                 break;
 931         case 1:
 932                 /* At least one device matching this call (RING on ttyI)
 933                  * HL-driver may send ALERTING on the D-channel in this
 934                  * case.
 935                  * really means: RING on ttyI or a net interface
 936                  * accepted this call already.
 937                  *
 938                  * If the call was accepted, state has already changed,
 939                  * and CONNECT_RESP already sent.
 940                  */
 941                 if (plcip->state == ST_PLCI_INCOMING) {
 942                         printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s tty alerting\n",
 943                                 card->contrnr,
 944                                 cmd.parm.setup.phone,
 945                                 cmd.parm.setup.si1,
 946                                 cmd.parm.setup.si2,
 947                                 cmd.parm.setup.eazmsn);
 948                         capi_fill_ALERT_REQ(cmsg,
 949                                             global.ap.applid,
 950                                             card->msgid++,
 951                                             plcip->plci,        /* adr */
 952                                             NULL,/* BChannelinformation */
 953                                             NULL,/* Keypadfacility */
 954                                             NULL,/* Useruserdata */
 955                                             NULL /* Facilitydataarray */
 956                         );
 957                         plcip->msgid = cmsg->Messagenumber;
 958                         send_message(card, cmsg);
 959                 } else {
 960                         printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s on netdev\n",
 961                                 card->contrnr,
 962                                 cmd.parm.setup.phone,
 963                                 cmd.parm.setup.si1,
 964                                 cmd.parm.setup.si2,
 965                                 cmd.parm.setup.eazmsn);
 966                 }
 967                 break;
 968
 969         case 2:         /* Call will be rejected. */
 970                 capi_cmsg_answer(cmsg);
 971                 cmsg->Reject = 2;       /* reject call, normal call clearing */
 972                 send_message(card, cmsg);
 973                 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
 974                 break;
 975
 976         default:
 977                 /* An error happened. (Invalid parameters for example.) */
 978                 capi_cmsg_answer(cmsg);
 979                 cmsg->Reject = 8;       /* reject call,
 980                                            destination out of order */
 981                 send_message(card, cmsg);
 982                 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
 983                 break;
 984         }
 985         return;
 986 }
 987
 988 static void handle_plci(_cmsg * cmsg)
 989 {
 990         capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
 991         capidrv_plci *plcip;
 992         isdn_ctrl cmd;
 993         _cdebbuf *cdb;
 994
 995         if (!card) {
 996                 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
 997                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
 998                        cmsg->adr.adrController & 0x7f);
 999                 return;
1000         }
1001         switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
1002
1003         case CAPI_DISCONNECT_IND:       /* plci */
1004                 if (cmsg->Reason) {
1005                         printk(KERN_INFO "capidrv-%d: %s reason 0x%x (%s) for plci 0x%x\n",
1006                            card->contrnr,
1007                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1008                                cmsg->Reason, capi_info2str(cmsg->Reason), cmsg->adr.adrPLCI);
1009                 }
1010                 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) {
1011                         capi_cmsg_answer(cmsg);
1012                         send_message(card, cmsg);
1013                         goto notfound;
1014                 }
1015                 card->bchans[plcip->chan].disconnecting = 1;
1016                 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_IND);
1017                 capi_cmsg_answer(cmsg);
1018                 send_message(card, cmsg);
1019                 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_RESP);
1020                 break;
1021
1022         case CAPI_DISCONNECT_CONF:      /* plci */
1023                 if (cmsg->Info) {
1024                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1025                            card->contrnr,
1026                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1027                                cmsg->Info, capi_info2str(cmsg->Info),
1028                                cmsg->adr.adrPLCI);
1029                 }
1030                 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1031                         goto notfound;
1032
1033                 card->bchans[plcip->chan].disconnecting = 1;
1034                 break;
1035
1036         case CAPI_ALERT_CONF:   /* plci */
1037                 if (cmsg->Info) {
1038                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1039                            card->contrnr,
1040                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1041                                cmsg->Info, capi_info2str(cmsg->Info),
1042                                cmsg->adr.adrPLCI);
1043                 }
1044                 break;
1045
1046         case CAPI_CONNECT_IND:  /* plci */
1047                 handle_incoming_call(card, cmsg);
1048                 break;
1049
1050         case CAPI_CONNECT_CONF: /* plci */
1051                 if (cmsg->Info) {
1052                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1053                            card->contrnr,
1054                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1055                                cmsg->Info, capi_info2str(cmsg->Info),
1056                                cmsg->adr.adrPLCI);
1057                 }
1058                 if (!(plcip = find_plci_by_msgid(card, cmsg->Messagenumber)))
1059                         goto notfound;
1060
1061                 plcip->plci = cmsg->adr.adrPLCI;
1062                 if (cmsg->Info) {
1063                         plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_ERROR);
1064                 } else {
1065                         plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_OK);
1066                 }
1067                 break;
1068
1069         case CAPI_CONNECT_ACTIVE_IND:   /* plci */
1070
1071                 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1072                         goto notfound;
1073
1074                 if (card->bchans[plcip->chan].incoming) {
1075                         capi_cmsg_answer(cmsg);
1076                         send_message(card, cmsg);
1077                         plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
1078                 } else {
1079                         capidrv_ncci *nccip;
1080                         capi_cmsg_answer(cmsg);
1081                         send_message(card, cmsg);
1082
1083                         nccip = new_ncci(card, plcip, cmsg->adr.adrPLCI);
1084
1085                         if (!nccip) {
1086                                 printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr);
1087                                 break;  /* $$$$ */
1088                         }
1089                         capi_fill_CONNECT_B3_REQ(cmsg,
1090                                                  global.ap.applid,
1091                                                  card->msgid++,
1092                                                  plcip->plci,   /* adr */
1093                                                  NULL   /* NCPI */
1094                         );
1095                         nccip->msgid = cmsg->Messagenumber;
1096                         send_message(card, cmsg);
1097                         cmd.command = ISDN_STAT_DCONN;
1098                         cmd.driver = card->myid;
1099                         cmd.arg = plcip->chan;
1100                         card->interface.statcallb(&cmd);
1101                         plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
1102                         ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_REQ);
1103                 }
1104                 break;
1105
1106         case CAPI_INFO_IND:     /* Controller/plci */
1107
1108                 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1109                         goto notfound;
1110
1111                 if (cmsg->InfoNumber == 0x4000) {
1112                         if (cmsg->InfoElement[0] == 4) {
1113                                 cmd.command = ISDN_STAT_CINF;
1114                                 cmd.driver = card->myid;
1115                                 cmd.arg = plcip->chan;
1116                                 sprintf(cmd.parm.num, "%lu",
1117                                         (unsigned long)
1118                                         ((u32) cmsg->InfoElement[1]
1119                                   | ((u32) (cmsg->InfoElement[2]) << 8)
1120                                  | ((u32) (cmsg->InfoElement[3]) << 16)
1121                                          | ((u32) (cmsg->InfoElement[4]) << 24)));
1122                                 card->interface.statcallb(&cmd);
1123                                 break;
1124                         }
1125                 }
1126                 cdb = capi_cmsg2str(cmsg);
1127                 if (cdb) {
1128                         printk(KERN_WARNING "capidrv-%d: %s\n",
1129                                 card->contrnr, cdb->buf);
1130                         cdebbuf_free(cdb);
1131                 } else
1132                         printk(KERN_WARNING "capidrv-%d: CAPI_INFO_IND InfoNumber %x not handled\n",
1133                                 card->contrnr, cmsg->InfoNumber);
1134
1135                 break;
1136
1137         case CAPI_CONNECT_ACTIVE_CONF:          /* plci */
1138                 goto ignored;
1139         case CAPI_SELECT_B_PROTOCOL_CONF:       /* plci */
1140                 goto ignored;
1141         case CAPI_FACILITY_IND: /* Controller/plci/ncci */
1142                 goto ignored;
1143         case CAPI_FACILITY_CONF:        /* Controller/plci/ncci */
1144                 goto ignored;
1145
1146         case CAPI_INFO_CONF:    /* Controller/plci */
1147                 goto ignored;
1148
1149         default:
1150                 printk(KERN_ERR "capidrv-%d: got %s for plci 0x%x ???",
1151                        card->contrnr,
1152                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1153                        cmsg->adr.adrPLCI);
1154         }
1155         return;
1156       ignored:
1157         printk(KERN_INFO "capidrv-%d: %s for plci 0x%x ignored\n",
1158                card->contrnr,
1159                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1160                cmsg->adr.adrPLCI);
1161         return;
1162       notfound:
1163         printk(KERN_ERR "capidrv-%d: %s: plci 0x%x not found\n",
1164                card->contrnr,
1165                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1166                cmsg->adr.adrPLCI);
1167         return;
1168 }
1169
1170 static void handle_ncci(_cmsg * cmsg)
1171 {
1172         capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
1173         capidrv_plci *plcip;
1174         capidrv_ncci *nccip;
1175         isdn_ctrl cmd;
1176         int len;
1177
1178         if (!card) {
1179                 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1180                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1181                        cmsg->adr.adrController & 0x7f);
1182                 return;
1183         }
1184         switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
1185
1186         case CAPI_CONNECT_B3_ACTIVE_IND:        /* ncci */
1187                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1188                         goto notfound;
1189
1190                 capi_cmsg_answer(cmsg);
1191                 send_message(card, cmsg);
1192                 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_ACTIVE_IND);
1193
1194                 cmd.command = ISDN_STAT_BCONN;
1195                 cmd.driver = card->myid;
1196                 cmd.arg = nccip->chan;
1197                 card->interface.statcallb(&cmd);
1198
1199                 printk(KERN_INFO "capidrv-%d: chan %d up with ncci 0x%x\n",
1200                        card->contrnr, nccip->chan, nccip->ncci);
1201                 break;
1202
1203         case CAPI_CONNECT_B3_ACTIVE_CONF:       /* ncci */
1204                 goto ignored;
1205
1206         case CAPI_CONNECT_B3_IND:       /* ncci */
1207
1208                 plcip = find_plci_by_ncci(card, cmsg->adr.adrNCCI);
1209                 if (plcip) {
1210                         nccip = new_ncci(card, plcip, cmsg->adr.adrNCCI);
1211                         if (nccip) {
1212                                 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_IND);
1213                                 capi_fill_CONNECT_B3_RESP(cmsg,
1214                                                           global.ap.applid,
1215                                                           card->msgid++,
1216                                                           nccip->ncci,  /* adr */
1217                                                           0,    /* Reject */
1218                                                           NULL  /* NCPI */
1219                                 );
1220                                 send_message(card, cmsg);
1221                                 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_RESP);
1222                                 break;
1223                         }
1224                         printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n",                                                 card->contrnr);
1225                 } else {
1226                         printk(KERN_ERR "capidrv-%d: %s: plci for ncci 0x%x not found\n",
1227                            card->contrnr,
1228                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1229                                cmsg->adr.adrNCCI);
1230                 }
1231                 capi_fill_CONNECT_B3_RESP(cmsg,
1232                                           global.ap.applid,
1233                                           card->msgid++,
1234                                           cmsg->adr.adrNCCI,
1235                                           2,    /* Reject */
1236                                           NULL  /* NCPI */
1237                 );
1238                 send_message(card, cmsg);
1239                 break;
1240
1241         case CAPI_CONNECT_B3_CONF:      /* ncci */
1242
1243                 if (!(nccip = find_ncci_by_msgid(card,
1244                                                  cmsg->adr.adrNCCI,
1245                                                  cmsg->Messagenumber)))
1246                         goto notfound;
1247
1248                 nccip->ncci = cmsg->adr.adrNCCI;
1249                 if (cmsg->Info) {
1250                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
1251                            card->contrnr,
1252                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1253                                cmsg->Info, capi_info2str(cmsg->Info),
1254                                cmsg->adr.adrNCCI);
1255                 }
1256
1257                 if (cmsg->Info)
1258                         ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_ERROR);
1259                 else
1260                         ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_OK);
1261                 break;
1262
1263         case CAPI_CONNECT_B3_T90_ACTIVE_IND:    /* ncci */
1264                 capi_cmsg_answer(cmsg);
1265                 send_message(card, cmsg);
1266                 break;
1267
1268         case CAPI_DATA_B3_IND:  /* ncci */
1269                 /* handled in handle_data() */
1270                 goto ignored;
1271
1272         case CAPI_DATA_B3_CONF: /* ncci */
1273                 if (cmsg->Info) {
1274                         printk(KERN_WARNING "CAPI_DATA_B3_CONF: Info %x - %s\n",
1275                                 cmsg->Info, capi_info2str(cmsg->Info));
1276                 }
1277                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1278                         goto notfound;
1279
1280                 len = capidrv_del_ack(nccip, cmsg->DataHandle);
1281                 if (len < 0)
1282                         break;
1283                 cmd.command = ISDN_STAT_BSENT;
1284                 cmd.driver = card->myid;
1285                 cmd.arg = nccip->chan;
1286                 cmd.parm.length = len;
1287                 card->interface.statcallb(&cmd);
1288                 break;
1289
1290         case CAPI_DISCONNECT_B3_IND:    /* ncci */
1291                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1292                         goto notfound;
1293
1294                 card->bchans[nccip->chan].disconnecting = 1;
1295                 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_IND);
1296                 capi_cmsg_answer(cmsg);
1297                 send_message(card, cmsg);
1298                 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_RESP);
1299                 break;
1300
1301         case CAPI_DISCONNECT_B3_CONF:   /* ncci */
1302                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1303                         goto notfound;
1304                 if (cmsg->Info) {
1305                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
1306                            card->contrnr,
1307                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1308                                cmsg->Info, capi_info2str(cmsg->Info),
1309                                cmsg->adr.adrNCCI);
1310                         ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_CONF_ERROR);
1311                 }
1312                 break;
1313
1314         case CAPI_RESET_B3_IND: /* ncci */
1315                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1316                         goto notfound;
1317                 ncci_change_state(card, nccip, EV_NCCI_RESET_B3_IND);
1318                 capi_cmsg_answer(cmsg);
1319                 send_message(card, cmsg);
1320                 break;
1321
1322         case CAPI_RESET_B3_CONF:        /* ncci */
1323                 goto ignored;   /* $$$$ */
1324
1325         case CAPI_FACILITY_IND: /* Controller/plci/ncci */
1326                 goto ignored;
1327         case CAPI_FACILITY_CONF:        /* Controller/plci/ncci */
1328                 goto ignored;
1329
1330         default:
1331                 printk(KERN_ERR "capidrv-%d: got %s for ncci 0x%x ???",
1332                        card->contrnr,
1333                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1334                        cmsg->adr.adrNCCI);
1335         }
1336         return;
1337       ignored:
1338         printk(KERN_INFO "capidrv-%d: %s for ncci 0x%x ignored\n",
1339                card->contrnr,
1340                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1341                cmsg->adr.adrNCCI);
1342         return;
1343       notfound:
1344         printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
1345                card->contrnr,
1346                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1347                cmsg->adr.adrNCCI);
1348 }
1349
1350
1351 static void handle_data(_cmsg * cmsg, struct sk_buff *skb)
1352 {
1353         capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
1354         capidrv_ncci *nccip;
1355
1356         if (!card) {
1357                 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1358                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1359                        cmsg->adr.adrController & 0x7f);
1360                 kfree_skb(skb);
1361                 return;
1362         }
1363         if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) {
1364                 printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
1365                        card->contrnr,
1366                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1367                        cmsg->adr.adrNCCI);
1368                 kfree_skb(skb);
1369                 return;
1370         }
1371         (void) skb_pull(skb, CAPIMSG_LEN(skb->data));
1372         card->interface.rcvcallb_skb(card->myid, nccip->chan, skb);
1373         capi_cmsg_answer(cmsg);
1374         send_message(card, cmsg);
1375 }
1376
1377 static _cmsg s_cmsg;
1378
1379 static void capidrv_recv_message(struct capi20_appl *ap, struct sk_buff *skb)
1380 {
1381         capi_message2cmsg(&s_cmsg, skb->data);
1382         if (debugmode > 3) {
1383                 _cdebbuf *cdb = capi_cmsg2str(&s_cmsg);
1384
1385                 if (cdb) {
1386                         printk(KERN_DEBUG "%s: applid=%d %s\n", __FUNCTION__,
1387                                 ap->applid, cdb->buf);
1388                         cdebbuf_free(cdb);
1389                 } else
1390                         printk(KERN_DEBUG "%s: applid=%d %s not traced\n",
1391                                 __FUNCTION__, ap->applid,
1392                                 capi_cmd2str(s_cmsg.Command, s_cmsg.Subcommand));
1393         }
1394         if (s_cmsg.Command == CAPI_DATA_B3
1395             && s_cmsg.Subcommand == CAPI_IND) {
1396                 handle_data(&s_cmsg, skb);
1397                 return;
1398         }
1399         if ((s_cmsg.adr.adrController & 0xffffff00) == 0)
1400                 handle_controller(&s_cmsg);
1401         else if ((s_cmsg.adr.adrPLCI & 0xffff0000) == 0)
1402                 handle_plci(&s_cmsg);
1403         else
1404                 handle_ncci(&s_cmsg);
1405         /*
1406          * data of skb used in s_cmsg,
1407          * free data when s_cmsg is not used again
1408          * thanks to Lars Heete <hel@admin.de>
1409          */
1410         kfree_skb(skb);
1411 }
1412
1413 /* ------------------------------------------------------------------- */
1414
1415 #define PUTBYTE_TO_STATUS(card, byte) \
1416         do { \
1417                 *(card)->q931_write++ = (byte); \
1418                 if ((card)->q931_write > (card)->q931_end) \
1419                         (card)->q931_write = (card)->q931_buf; \
1420         } while (0)
1421
1422 static void handle_dtrace_data(capidrv_contr *card,
1423                              int send, int level2, u8 *data, u16 len)
1424 {
1425         u8 *p, *end;
1426         isdn_ctrl cmd;
1427
1428         if (!len) {
1429                 printk(KERN_DEBUG "capidrv-%d: avmb1_q931_data: len == %d\n",
1430                                 card->contrnr, len);
1431                 return;
1432         }
1433
1434         if (level2) {
1435                 PUTBYTE_TO_STATUS(card, 'D');
1436                 PUTBYTE_TO_STATUS(card, '2');
1437                 PUTBYTE_TO_STATUS(card, send ? '>' : '<');
1438                 PUTBYTE_TO_STATUS(card, ':');
1439         } else {
1440                 PUTBYTE_TO_STATUS(card, 'D');
1441                 PUTBYTE_TO_STATUS(card, '3');
1442                 PUTBYTE_TO_STATUS(card, send ? '>' : '<');
1443                 PUTBYTE_TO_STATUS(card, ':');
1444         }
1445
1446         for (p = data, end = data+len; p < end; p++) {
1447                 u8 w;
1448                 PUTBYTE_TO_STATUS(card, ' ');
1449                 w = (*p >> 4) & 0xf;
1450                 PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
1451                 w = *p & 0xf;
1452                 PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
1453         }
1454         PUTBYTE_TO_STATUS(card, '\n');
1455
1456         cmd.command = ISDN_STAT_STAVAIL;
1457         cmd.driver = card->myid;
1458         cmd.arg = len*3+5;
1459         card->interface.statcallb(&cmd);
1460 }
1461
1462 /* ------------------------------------------------------------------- */
1463
1464 static _cmsg cmdcmsg;
1465
1466 static int capidrv_ioctl(isdn_ctrl * c, capidrv_contr * card)
1467 {
1468         switch (c->arg) {
1469         case 1:
1470                 debugmode = (int)(*((unsigned int *)c->parm.num));
1471                 printk(KERN_DEBUG "capidrv-%d: debugmode=%d\n",
1472                                 card->contrnr, debugmode);
1473                 return 0;
1474         default:
1475                 printk(KERN_DEBUG "capidrv-%d: capidrv_ioctl(%ld) called ??\n",
1476                                 card->contrnr, c->arg);
1477                 return -EINVAL;
1478         }
1479         return -EINVAL;
1480 }
1481
1482 /*
1483  * Handle leased lines (CAPI-Bundling)
1484  */
1485
1486 struct internal_bchannelinfo {
1487    unsigned short channelalloc;
1488    unsigned short operation;
1489    unsigned char  cmask[31];
1490 };
1491
1492 static int decodeFVteln(char *teln, unsigned long *bmaskp, int *activep)
1493 {
1494         unsigned long bmask = 0;
1495         int active = !0;
1496         char *s;
1497         int i;
1498
1499         if (strncmp(teln, "FV:", 3) != 0)
1500                 return 1;
1501         s = teln + 3;
1502         while (*s && *s == ' ') s++;
1503         if (!*s) return -2;
1504         if (*s == 'p' || *s == 'P') {
1505                 active = 0;
1506                 s++;
1507         }
1508         if (*s == 'a' || *s == 'A') {
1509                 active = !0;
1510                 s++;
1511         }
1512         while (*s) {
1513                 int digit1 = 0;
1514                 int digit2 = 0;
1515                 if (!isdigit(*s)) return -3;
1516                 while (isdigit(*s)) { digit1 = digit1*10 + (*s - '0'); s++; }
1517                 if (digit1 <= 0 && digit1 > 30) return -4;
1518                 if (*s == 0 || *s == ',' || *s == ' ') {
1519                         bmask |= (1 << digit1);
1520                         digit1 = 0;
1521                         if (*s) s++;
1522                         continue;
1523                 }
1524                 if (*s != '-') return -5;
1525                 s++;
1526                 if (!isdigit(*s)) return -3;
1527                 while (isdigit(*s)) { digit2 = digit2*10 + (*s - '0'); s++; }
1528                 if (digit2 <= 0 && digit2 > 30) return -4;
1529                 if (*s == 0 || *s == ',' || *s == ' ') {
1530                         if (digit1 > digit2)
1531                                 for (i = digit2; i <= digit1 ; i++)
1532                                         bmask |= (1 << i);
1533                         else
1534                                 for (i = digit1; i <= digit2 ; i++)
1535                                         bmask |= (1 << i);
1536                         digit1 = digit2 = 0;
1537                         if (*s) s++;
1538                         continue;
1539                 }
1540                 return -6;
1541         }
1542         if (activep) *activep = active;
1543         if (bmaskp) *bmaskp = bmask;
1544         return 0;
1545 }
1546
1547 static int FVteln2capi20(char *teln, u8 AdditionalInfo[1+2+2+31])
1548 {
1549         unsigned long bmask;
1550         int active;
1551         int rc, i;
1552
1553         rc = decodeFVteln(teln, &bmask, &active);
1554         if (rc) return rc;
1555         /* Length */
1556         AdditionalInfo[0] = 2+2+31;
1557         /* Channel: 3 => use channel allocation */
1558         AdditionalInfo[1] = 3; AdditionalInfo[2] = 0;
1559         /* Operation: 0 => DTE mode, 1 => DCE mode */
1560         if (active) {
1561                 AdditionalInfo[3] = 0; AdditionalInfo[4] = 0;
1562         } else {
1563                 AdditionalInfo[3] = 1; AdditionalInfo[4] = 0;
1564         }
1565         /* Channel mask array */
1566         AdditionalInfo[5] = 0; /* no D-Channel */
1567         for (i=1; i <= 30; i++)
1568                 AdditionalInfo[5+i] = (bmask & (1 << i)) ? 0xff : 0;
1569         return 0;
1570 }
1571
1572 static int capidrv_command(isdn_ctrl * c, capidrv_contr * card)
1573 {
1574         isdn_ctrl cmd;
1575         struct capidrv_bchan *bchan;
1576         struct capidrv_plci *plcip;
1577         u8 AdditionalInfo[1+2+2+31];
1578         int rc, isleasedline = 0;
1579
1580         if (c->command == ISDN_CMD_IOCTL)
1581                 return capidrv_ioctl(c, card);
1582
1583         switch (c->command) {
1584         case ISDN_CMD_DIAL:{
1585                         u8 calling[ISDN_MSNLEN + 3];
1586                         u8 called[ISDN_MSNLEN + 2];
1587
1588                         if (debugmode)
1589                                 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_DIAL(ch=%ld,\"%s,%d,%d,%s\")\n",
1590                                         card->contrnr,
1591                                         c->arg,
1592                                         c->parm.setup.phone,
1593                                         c->parm.setup.si1,
1594                                         c->parm.setup.si2,
1595                                         c->parm.setup.eazmsn);
1596
1597                         bchan = &card->bchans[c->arg % card->nbchan];
1598
1599                         if (bchan->plcip) {
1600                                 printk(KERN_ERR "capidrv-%d: dail ch=%ld,\"%s,%d,%d,%s\" in use (plci=0x%x)\n",
1601                                         card->contrnr,
1602                                         c->arg,
1603                                         c->parm.setup.phone,
1604                                         c->parm.setup.si1,
1605                                         c->parm.setup.si2,
1606                                         c->parm.setup.eazmsn,
1607                                         bchan->plcip->plci);
1608                                 return 0;
1609                         }
1610                         bchan->si1 = c->parm.setup.si1;
1611                         bchan->si2 = c->parm.setup.si2;
1612
1613                         strncpy(bchan->num, c->parm.setup.phone, sizeof(bchan->num));
1614                         strncpy(bchan->mynum, c->parm.setup.eazmsn, sizeof(bchan->mynum));
1615                         rc = FVteln2capi20(bchan->num, AdditionalInfo);
1616                         isleasedline = (rc == 0);
1617                         if (rc < 0)
1618                                 printk(KERN_ERR "capidrv-%d: WARNING: invalid leased linedefinition \"%s\"\n", card->contrnr, bchan->num);
1619
1620                         if (isleasedline) {
1621                                 calling[0] = 0;
1622                                 called[0] = 0;
1623                                 if (debugmode)
1624                                         printk(KERN_DEBUG "capidrv-%d: connecting leased line\n", card->contrnr);
1625                         } else {
1626                                 calling[0] = strlen(bchan->mynum) + 2;
1627                                 calling[1] = 0;
1628                                 calling[2] = 0x80;
1629                                 strncpy(calling + 3, bchan->mynum, ISDN_MSNLEN);
1630                                 called[0] = strlen(bchan->num) + 1;
1631                                 called[1] = 0x80;
1632                                 strncpy(called + 2, bchan->num, ISDN_MSNLEN);
1633                         }
1634
1635                         capi_fill_CONNECT_REQ(&cmdcmsg,
1636                                               global.ap.applid,
1637                                               card->msgid++,
1638                                               card->contrnr,    /* adr */
1639                                           si2cip(bchan->si1, bchan->si2),       /* cipvalue */
1640                                               called,   /* CalledPartyNumber */
1641                                               calling,  /* CallingPartyNumber */
1642                                               NULL,     /* CalledPartySubaddress */
1643                                               NULL,     /* CallingPartySubaddress */
1644                                             b1prot(bchan->l2, bchan->l3),       /* B1protocol */
1645                                             b2prot(bchan->l2, bchan->l3),       /* B2protocol */
1646                                             b3prot(bchan->l2, bchan->l3),       /* B3protocol */
1647                                             b1config(bchan->l2, bchan->l3),     /* B1configuration */
1648                                               NULL,     /* B2configuration */
1649                                               NULL,     /* B3configuration */
1650                                               NULL,     /* BC */
1651                                               NULL,     /* LLC */
1652                                               NULL,     /* HLC */
1653                                               /* BChannelinformation */
1654                                               isleasedline ? AdditionalInfo : NULL,
1655                                               NULL,     /* Keypadfacility */
1656                                               NULL,     /* Useruserdata */
1657                                               NULL      /* Facilitydataarray */
1658                             );
1659                         if ((plcip = new_plci(card, (c->arg % card->nbchan))) == 0) {
1660                                 cmd.command = ISDN_STAT_DHUP;
1661                                 cmd.driver = card->myid;
1662                                 cmd.arg = (c->arg % card->nbchan);
1663                                 card->interface.statcallb(&cmd);
1664                                 return -1;
1665                         }
1666                         plcip->msgid = cmdcmsg.Messagenumber;
1667                         plcip->leasedline = isleasedline;
1668                         plci_change_state(card, plcip, EV_PLCI_CONNECT_REQ);
1669                         send_message(card, &cmdcmsg);
1670                         return 0;
1671                 }
1672
1673         case ISDN_CMD_ACCEPTD:
1674
1675                 bchan = &card->bchans[c->arg % card->nbchan];
1676                 if (debugmode)
1677                         printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTD(ch=%ld) l2=%d l3=%d\n",
1678                                card->contrnr,
1679                                c->arg, bchan->l2, bchan->l3);
1680
1681                 capi_fill_CONNECT_RESP(&cmdcmsg,
1682                                        global.ap.applid,
1683                                        card->msgid++,
1684                                        bchan->plcip->plci,      /* adr */
1685                                        0,       /* Reject */
1686                                        b1prot(bchan->l2, bchan->l3),    /* B1protocol */
1687                                        b2prot(bchan->l2, bchan->l3),    /* B2protocol */
1688                                        b3prot(bchan->l2, bchan->l3),    /* B3protocol */
1689                                        b1config(bchan->l2, bchan->l3),  /* B1configuration */
1690                                        NULL,    /* B2configuration */
1691                                        NULL,    /* B3configuration */
1692                                        NULL,    /* ConnectedNumber */
1693                                        NULL,    /* ConnectedSubaddress */
1694                                        NULL,    /* LLC */
1695                                        NULL,    /* BChannelinformation */
1696                                        NULL,    /* Keypadfacility */
1697                                        NULL,    /* Useruserdata */
1698                                        NULL     /* Facilitydataarray */
1699                 );
1700                 capi_cmsg2message(&cmdcmsg, cmdcmsg.buf);
1701                 plci_change_state(card, bchan->plcip, EV_PLCI_CONNECT_RESP);
1702                 send_message(card, &cmdcmsg);
1703                 return 0;
1704
1705         case ISDN_CMD_ACCEPTB:
1706                 if (debugmode)
1707                         printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTB(ch=%ld)\n",
1708                                card->contrnr,
1709                                c->arg);
1710                 return -ENOSYS;
1711
1712         case ISDN_CMD_HANGUP:
1713                 if (debugmode)
1714                         printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_HANGUP(ch=%ld)\n",
1715                                card->contrnr,
1716                                c->arg);
1717                 bchan = &card->bchans[c->arg % card->nbchan];
1718
1719                 if (bchan->disconnecting) {
1720                         if (debugmode)
1721                                 printk(KERN_DEBUG "capidrv-%d: chan %ld already disconnecting ...\n",
1722                                        card->contrnr,
1723                                        c->arg);
1724                         return 0;
1725                 }
1726                 if (bchan->nccip) {
1727                         bchan->disconnecting = 1;
1728                         capi_fill_DISCONNECT_B3_REQ(&cmdcmsg,
1729                                                     global.ap.applid,
1730                                                     card->msgid++,
1731                                                     bchan->nccip->ncci,
1732                                                     NULL        /* NCPI */
1733                         );
1734                         ncci_change_state(card, bchan->nccip, EV_NCCI_DISCONNECT_B3_REQ);
1735                         send_message(card, &cmdcmsg);
1736                         return 0;
1737                 } else if (bchan->plcip) {
1738                         if (bchan->plcip->state == ST_PLCI_INCOMING) {
1739                                 /*
1740                                  * just ignore, we a called from
1741                                  * isdn_status_callback(),
1742                                  * which will return 0 or 2, this is handled
1743                                  * by the CONNECT_IND handler
1744                                  */
1745                                 bchan->disconnecting = 1;
1746                                 return 0;
1747                         } else if (bchan->plcip->plci) {
1748                                 bchan->disconnecting = 1;
1749                                 capi_fill_DISCONNECT_REQ(&cmdcmsg,
1750                                                          global.ap.applid,
1751                                                          card->msgid++,
1752                                                       bchan->plcip->plci,
1753                                                          NULL,  /* BChannelinformation */
1754                                                          NULL,  /* Keypadfacility */
1755                                                          NULL,  /* Useruserdata */
1756                                                          NULL   /* Facilitydataarray */
1757                                 );
1758                                 plci_change_state(card, bchan->plcip, EV_PLCI_DISCONNECT_REQ);
1759                                 send_message(card, &cmdcmsg);
1760                                 return 0;
1761                         } else {
1762                                 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request while waiting for CONNECT_CONF\n",
1763                                        card->contrnr,
1764                                        c->arg);
1765                                 return -EINVAL;
1766                         }
1767                 }
1768                 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request on free channel\n",
1769                                        card->contrnr,
1770                                        c->arg);
1771                 return -EINVAL;
1772 /* ready */
1773
1774         case ISDN_CMD_SETL2:
1775                 if (debugmode)
1776                         printk(KERN_DEBUG "capidrv-%d: set L2 on chan %ld to %ld\n",
1777                                card->contrnr,
1778                                (c->arg & 0xff), (c->arg >> 8));
1779                 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1780                 bchan->l2 = (c->arg >> 8);
1781                 return 0;
1782
1783         case ISDN_CMD_SETL3:
1784                 if (debugmode)
1785                         printk(KERN_DEBUG "capidrv-%d: set L3 on chan %ld to %ld\n",
1786                                card->contrnr,
1787                                (c->arg & 0xff), (c->arg >> 8));
1788                 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1789                 bchan->l3 = (c->arg >> 8);
1790                 return 0;
1791
1792         case ISDN_CMD_SETEAZ:
1793                 if (debugmode)
1794                         printk(KERN_DEBUG "capidrv-%d: set EAZ \"%s\" on chan %ld\n",
1795                                card->contrnr,
1796                                c->parm.num, c->arg);
1797                 bchan = &card->bchans[c->arg % card->nbchan];
1798                 strncpy(bchan->msn, c->parm.num, ISDN_MSNLEN);
1799                 return 0;
1800
1801         case ISDN_CMD_CLREAZ:
1802                 if (debugmode)
1803                         printk(KERN_DEBUG "capidrv-%d: clearing EAZ on chan %ld\n",
1804                                         card->contrnr, c->arg);
1805                 bchan = &card->bchans[c->arg % card->nbchan];
1806                 bchan->msn[0] = 0;
1807                 return 0;
1808
1809         default:
1810                 printk(KERN_ERR "capidrv-%d: ISDN_CMD_%d, Huh?\n",
1811                                         card->contrnr, c->command);
1812                 return -EINVAL;
1813         }
1814         return 0;
1815 }
1816
1817 static int if_command(isdn_ctrl * c)
1818 {
1819         capidrv_contr *card = findcontrbydriverid(c->driver);
1820
1821         if (card)
1822                 return capidrv_command(c, card);
1823
1824         printk(KERN_ERR
1825              "capidrv: if_command %d called with invalid driverId %d!\n",
1826                                                 c->command, c->driver);
1827         return -ENODEV;
1828 }
1829
1830 static _cmsg sendcmsg;
1831
1832 static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb)
1833 {
1834         capidrv_contr *card = findcontrbydriverid(id);
1835         capidrv_bchan *bchan;
1836         capidrv_ncci *nccip;
1837         int len = skb->len;
1838         int msglen;
1839         u16 errcode;
1840         u16 datahandle;
1841
1842         if (!card) {
1843                 printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n",
1844                        id);
1845                 return 0;
1846         }
1847         if (debugmode > 4)
1848                 printk(KERN_DEBUG "capidrv-%d: sendbuf len=%d skb=%p doack=%d\n",
1849                                         card->contrnr, len, skb, doack);
1850         bchan = &card->bchans[channel % card->nbchan];
1851         nccip = bchan->nccip;
1852         if (!nccip || nccip->state != ST_NCCI_ACTIVE) {
1853                 printk(KERN_ERR "capidrv-%d: if_sendbuf: %s:%d: chan not up!\n",
1854                        card->contrnr, card->name, channel);
1855                 return 0;
1856         }
1857         datahandle = nccip->datahandle;
1858         capi_fill_DATA_B3_REQ(&sendcmsg, global.ap.applid, card->msgid++,
1859                               nccip->ncci,      /* adr */
1860                               (u32) skb->data,  /* Data */
1861                               skb->len,         /* DataLength */
1862                               datahandle,       /* DataHandle */
1863                               0 /* Flags */
1864             );
1865
1866         if (capidrv_add_ack(nccip, datahandle, doack ? (int)skb->len : -1) < 0)
1867            return 0;
1868
1869         capi_cmsg2message(&sendcmsg, sendcmsg.buf);
1870         msglen = CAPIMSG_LEN(sendcmsg.buf);
1871         if (skb_headroom(skb) < msglen) {
1872                 struct sk_buff *nskb = skb_realloc_headroom(skb, msglen);
1873                 if (!nskb) {
1874                         printk(KERN_ERR "capidrv-%d: if_sendbuf: no memory\n",
1875                                 card->contrnr);
1876                         (void)capidrv_del_ack(nccip, datahandle);
1877                         return 0;
1878                 }
1879                 printk(KERN_DEBUG "capidrv-%d: only %d bytes headroom, need %d\n",
1880                        card->contrnr, skb_headroom(skb), msglen);
1881                 memcpy(skb_push(nskb, msglen), sendcmsg.buf, msglen);
1882                 errcode = capi20_put_message(&global.ap, nskb);
1883                 if (errcode == CAPI_NOERROR) {
1884                         dev_kfree_skb(skb);
1885                         nccip->datahandle++;
1886                         return len;
1887                 }
1888                 if (debugmode > 3)
1889                         printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1890                                 card->contrnr, errcode, capi_info2str(errcode));
1891                 (void)capidrv_del_ack(nccip, datahandle);
1892                 dev_kfree_skb(nskb);
1893                 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1894         } else {
1895                 memcpy(skb_push(skb, msglen), sendcmsg.buf, msglen);
1896                 errcode = capi20_put_message(&global.ap, skb);
1897                 if (errcode == CAPI_NOERROR) {
1898                         nccip->datahandle++;
1899                         return len;
1900                 }
1901                 if (debugmode > 3)
1902                         printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1903                                 card->contrnr, errcode, capi_info2str(errcode));
1904                 skb_pull(skb, msglen);
1905                 (void)capidrv_del_ack(nccip, datahandle);
1906                 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1907         }
1908 }
1909
1910 static int if_readstat(u8 __user *buf, int len, int id, int channel)
1911 {
1912         capidrv_contr *card = findcontrbydriverid(id);
1913         int count;
1914         u8 __user *p;
1915
1916         if (!card) {
1917                 printk(KERN_ERR "capidrv: if_readstat called with invalid driverId %d!\n",
1918                        id);
1919                 return -ENODEV;
1920         }
1921
1922         for (p=buf, count=0; count < len; p++, count++) {
1923                 if (put_user(*card->q931_read++, p))
1924                         return -EFAULT;
1925                 if (card->q931_read > card->q931_end)
1926                         card->q931_read = card->q931_buf;
1927         }
1928         return count;
1929
1930 }
1931
1932 static void enable_dchannel_trace(capidrv_contr *card)
1933 {
1934         u8 manufacturer[CAPI_MANUFACTURER_LEN];
1935         capi_version version;
1936         u16 contr = card->contrnr;
1937         u16 errcode;
1938         u16 avmversion[3];
1939
1940         errcode = capi20_get_manufacturer(contr, manufacturer);
1941         if (errcode != CAPI_NOERROR) {
1942            printk(KERN_ERR "%s: can't get manufacturer (0x%x)\n",
1943                         card->name, errcode);
1944            return;
1945         }
1946         if (strstr(manufacturer, "AVM") == 0) {
1947            printk(KERN_ERR "%s: not from AVM, no d-channel trace possible (%s)\n",
1948                         card->name, manufacturer);
1949            return;
1950         }
1951         errcode = capi20_get_version(contr, &version);
1952         if (errcode != CAPI_NOERROR) {
1953            printk(KERN_ERR "%s: can't get version (0x%x)\n",
1954                         card->name, errcode);
1955            return;
1956         }
1957         avmversion[0] = (version.majormanuversion >> 4) & 0x0f;
1958         avmversion[1] = (version.majormanuversion << 4) & 0xf0;
1959         avmversion[1] |= (version.minormanuversion >> 4) & 0x0f;
1960         avmversion[2] |= version.minormanuversion & 0x0f;
1961
1962         if (avmversion[0] > 3 || (avmversion[0] == 3 && avmversion[1] > 5)) {
1963                 printk(KERN_INFO "%s: D2 trace enabled\n", card->name);
1964                 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1965                                            card->msgid++,
1966                                            contr,
1967                                            0x214D5641,  /* ManuID */
1968                                            0,           /* Class */
1969                                            1,           /* Function */
1970                                            (_cstruct)"\004\200\014\000\000");
1971         } else {
1972                 printk(KERN_INFO "%s: D3 trace enabled\n", card->name);
1973                 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1974                                            card->msgid++,
1975                                            contr,
1976                                            0x214D5641,  /* ManuID */
1977                                            0,           /* Class */
1978                                            1,           /* Function */
1979                                            (_cstruct)"\004\002\003\000\000");
1980         }
1981         send_message(card, &cmdcmsg);
1982 }
1983
1984
1985 static void send_listen(capidrv_contr *card)
1986 {
1987         capi_fill_LISTEN_REQ(&cmdcmsg, global.ap.applid,
1988                              card->msgid++,
1989                              card->contrnr, /* controller */
1990                              1 << 6,    /* Infomask */
1991                              card->cipmask,
1992                              card->cipmask2,
1993                              NULL, NULL);
1994         send_message(card, &cmdcmsg);
1995         listen_change_state(card, EV_LISTEN_REQ);
1996 }
1997
1998 static void listentimerfunc(unsigned long x)
1999 {
2000         capidrv_contr *card = (capidrv_contr *)x;
2001         if (card->state != ST_LISTEN_NONE && card->state != ST_LISTEN_ACTIVE)
2002                 printk(KERN_ERR "%s: controller dead ??\n", card->name);
2003         send_listen(card);
2004         mod_timer(&card->listentimer, jiffies + 60*HZ);
2005 }
2006
2007
2008 static int capidrv_addcontr(u16 contr, struct capi_profile *profp)
2009 {
2010         capidrv_contr *card;
2011         unsigned long flags;
2012         isdn_ctrl cmd;
2013         char id[20];
2014         int i;
2015
2016         sprintf(id, "capidrv-%d", contr);
2017         if (!try_module_get(THIS_MODULE)) {
2018                 printk(KERN_WARNING "capidrv: (%s) Could not reserve module\n", id);
2019                 return -1;
2020         }
2021         if (!(card = kzalloc(sizeof(capidrv_contr), GFP_ATOMIC))) {
2022                 printk(KERN_WARNING
2023                  "capidrv: (%s) Could not allocate contr-struct.\n", id);
2024                 return -1;
2025         }
2026         card->owner = THIS_MODULE;
2027         init_timer(&card->listentimer);
2028         strcpy(card->name, id);
2029         card->contrnr = contr;
2030         card->nbchan = profp->nbchannel;
2031         card->bchans = kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
2032         if (!card->bchans) {
2033                 printk(KERN_WARNING
2034                 "capidrv: (%s) Could not allocate bchan-structs.\n", id);
2035                 module_put(card->owner);
2036                 kfree(card);
2037                 return -1;
2038         }
2039         card->interface.channels = profp->nbchannel;
2040         card->interface.maxbufsize = 2048;
2041         card->interface.command = if_command;
2042         card->interface.writebuf_skb = if_sendbuf;
2043         card->interface.writecmd = NULL;
2044         card->interface.readstat = if_readstat;
2045         card->interface.features = ISDN_FEATURE_L2_HDLC |
2046                                    ISDN_FEATURE_L2_TRANS |
2047                                    ISDN_FEATURE_L3_TRANS |
2048                                    ISDN_FEATURE_P_UNKNOWN |
2049                                    ISDN_FEATURE_L2_X75I |
2050                                    ISDN_FEATURE_L2_X75UI |
2051                                    ISDN_FEATURE_L2_X75BUI;
2052         if (profp->support1 & (1<<2))
2053                 card->interface.features |= ISDN_FEATURE_L2_V11096 |
2054                                             ISDN_FEATURE_L2_V11019 |
2055                                             ISDN_FEATURE_L2_V11038;
2056         if (profp->support1 & (1<<8))
2057                 card->interface.features |= ISDN_FEATURE_L2_MODEM;
2058         card->interface.hl_hdrlen = 22; /* len of DATA_B3_REQ */
2059         strncpy(card->interface.id, id, sizeof(card->interface.id) - 1);
2060
2061
2062         card->q931_read = card->q931_buf;
2063         card->q931_write = card->q931_buf;
2064         card->q931_end = card->q931_buf + sizeof(card->q931_buf) - 1;
2065
2066         if (!register_isdn(&card->interface)) {
2067                 printk(KERN_ERR "capidrv: Unable to register contr %s\n", id);
2068                 kfree(card->bchans);
2069                 module_put(card->owner);
2070                 kfree(card);
2071                 return -1;
2072         }
2073         card->myid = card->interface.channels;
2074         memset(card->bchans, 0, sizeof(capidrv_bchan) * card->nbchan);
2075         for (i = 0; i < card->nbchan; i++) {
2076                 card->bchans[i].contr = card;
2077         }
2078
2079         spin_lock_irqsave(&global_lock, flags);
2080         card->next = global.contr_list;
2081         global.contr_list = card;
2082         global.ncontr++;
2083         spin_unlock_irqrestore(&global_lock, flags);
2084
2085         cmd.command = ISDN_STAT_RUN;
2086         cmd.driver = card->myid;
2087         card->interface.statcallb(&cmd);
2088
2089         card->cipmask = 0x1FFF03FF;     /* any */
2090         card->cipmask2 = 0;
2091
2092         card->listentimer.data = (unsigned long)card;
2093         card->listentimer.function = listentimerfunc;
2094         send_listen(card);
2095         mod_timer(&card->listentimer, jiffies + 60*HZ);
2096
2097         printk(KERN_INFO "%s: now up (%d B channels)\n",
2098                 card->name, card->nbchan);
2099
2100         enable_dchannel_trace(card);
2101
2102         return 0;
2103 }
2104
2105 static int capidrv_delcontr(u16 contr)
2106 {
2107         capidrv_contr **pp, *card;
2108         unsigned long flags;
2109         isdn_ctrl cmd;
2110
2111         spin_lock_irqsave(&global_lock, flags);
2112         for (card = global.contr_list; card; card = card->next) {
2113                 if (card->contrnr == contr)
2114                         break;
2115         }
2116         if (!card) {
2117                 spin_unlock_irqrestore(&global_lock, flags);
2118                 printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr);
2119                 return -1;
2120         }
2121         #warning FIXME: maybe a race condition the card should be removed here from global list /kkeil
2122         spin_unlock_irqrestore(&global_lock, flags);
2123
2124         del_timer(&card->listentimer);
2125
2126         if (debugmode)
2127                 printk(KERN_DEBUG "capidrv-%d: id=%d unloading\n",
2128                                         card->contrnr, card->myid);
2129
2130         cmd.command = ISDN_STAT_STOP;
2131         cmd.driver = card->myid;
2132         card->interface.statcallb(&cmd);
2133
2134         while (card->nbchan) {
2135
2136                 cmd.command = ISDN_STAT_DISCH;
2137                 cmd.driver = card->myid;
2138                 cmd.arg = card->nbchan-1;
2139                 cmd.parm.num[0] = 0;
2140                 if (debugmode)
2141                         printk(KERN_DEBUG "capidrv-%d: id=%d disable chan=%ld\n",
2142                                         card->contrnr, card->myid, cmd.arg);
2143                 card->interface.statcallb(&cmd);
2144
2145                 if (card->bchans[card->nbchan-1].nccip)
2146                         free_ncci(card, card->bchans[card->nbchan-1].nccip);
2147                 if (card->bchans[card->nbchan-1].plcip)
2148                         free_plci(card, card->bchans[card->nbchan-1].plcip);
2149                 if (card->plci_list)
2150                         printk(KERN_ERR "capidrv: bug in free_plci()\n");
2151                 card->nbchan--;
2152         }
2153         kfree(card->bchans);
2154         card->bchans = NULL;
2155
2156         if (debugmode)
2157                 printk(KERN_DEBUG "capidrv-%d: id=%d isdn unload\n",
2158                                         card->contrnr, card->myid);
2159
2160         cmd.command = ISDN_STAT_UNLOAD;
2161         cmd.driver = card->myid;
2162         card->interface.statcallb(&cmd);
2163
2164         if (debugmode)
2165                 printk(KERN_DEBUG "capidrv-%d: id=%d remove contr from list\n",
2166                                         card->contrnr, card->myid);
2167
2168         spin_lock_irqsave(&global_lock, flags);
2169         for (pp = &global.contr_list; *pp; pp = &(*pp)->next) {
2170                 if (*pp == card) {
2171                         *pp = (*pp)->next;
2172                         card->next = NULL;
2173                         global.ncontr--;
2174                         break;
2175                 }
2176         }
2177         spin_unlock_irqrestore(&global_lock, flags);
2178
2179         module_put(card->owner);
2180         printk(KERN_INFO "%s: now down.\n", card->name);
2181         kfree(card);
2182         return 0;
2183 }
2184
2185
2186 static void lower_callback(unsigned int cmd, u32 contr, void *data)
2187 {
2188
2189         switch (cmd) {
2190         case KCI_CONTRUP:
2191                 printk(KERN_INFO "capidrv: controller %hu up\n", contr);
2192                 (void) capidrv_addcontr(contr, (capi_profile *) data);
2193                 break;
2194         case KCI_CONTRDOWN:
2195                 printk(KERN_INFO "capidrv: controller %hu down\n", contr);
2196                 (void) capidrv_delcontr(contr);
2197                 break;
2198         }
2199 }
2200
2201 /*
2202  * /proc/capi/capidrv:
2203  * nrecvctlpkt nrecvdatapkt nsendctlpkt nsenddatapkt
2204  */
2205 static int proc_capidrv_read_proc(char *page, char **start, off_t off,
2206                                        int count, int *eof, void *data)
2207 {
2208         int len = 0;
2209
2210         len += sprintf(page+len, "%lu %lu %lu %lu\n",
2211                         global.ap.nrecvctlpkt,
2212                         global.ap.nrecvdatapkt,
2213                         global.ap.nsentctlpkt,
2214                         global.ap.nsentdatapkt);
2215         if (off+count >= len)
2216            *eof = 1;
2217         if (len < off)
2218            return 0;
2219         *start = page + off;
2220         return ((count < len-off) ? count : len-off);
2221 }
2222
2223 static struct procfsentries {
2224   char *name;
2225   mode_t mode;
2226   int (*read_proc)(char *page, char **start, off_t off,
2227                                        int count, int *eof, void *data);
2228   struct proc_dir_entry *procent;
2229 } procfsentries[] = {
2230    /* { "capi",           S_IFDIR, 0 }, */
2231    { "capi/capidrv",      0      , proc_capidrv_read_proc },
2232 };
2233
2234 static void __init proc_init(void)
2235 {
2236     int nelem = ARRAY_SIZE(procfsentries);
2237     int i;
2238
2239     for (i=0; i < nelem; i++) {
2240         struct procfsentries *p = procfsentries + i;
2241         p->procent = create_proc_entry(p->name, p->mode, NULL);
2242         if (p->procent) p->procent->read_proc = p->read_proc;
2243     }
2244 }
2245
2246 static void __exit proc_exit(void)
2247 {
2248     int nelem = ARRAY_SIZE(procfsentries);
2249     int i;
2250
2251     for (i=nelem-1; i >= 0; i--) {
2252         struct procfsentries *p = procfsentries + i;
2253         if (p->procent) {
2254            remove_proc_entry(p->name, NULL);
2255            p->procent = NULL;
2256         }
2257     }
2258 }
2259
2260 static int __init capidrv_init(void)
2261 {
2262         capi_profile profile;
2263         char rev[32];
2264         char *p;
2265         u32 ncontr, contr;
2266         u16 errcode;
2267
2268         if ((p = strchr(revision, ':')) != 0 && p[1]) {
2269                 strncpy(rev, p + 2, sizeof(rev));
2270                 rev[sizeof(rev)-1] = 0;
2271                 if ((p = strchr(rev, '$')) != 0 && p > rev)
2272                    *(p-1) = 0;
2273         } else
2274                 strcpy(rev, "1.0");
2275
2276         global.ap.rparam.level3cnt = -2;  /* number of bchannels twice */
2277         global.ap.rparam.datablkcnt = 16;
2278         global.ap.rparam.datablklen = 2048;
2279
2280         global.ap.recv_message = capidrv_recv_message;
2281         errcode = capi20_register(&global.ap);
2282         if (errcode) {
2283                 return -EIO;
2284         }
2285
2286         capi20_set_callback(&global.ap, lower_callback);
2287
2288         errcode = capi20_get_profile(0, &profile);
2289         if (errcode != CAPI_NOERROR) {
2290                 capi20_release(&global.ap);
2291                 return -EIO;
2292         }
2293
2294         ncontr = profile.ncontroller;
2295         for (contr = 1; contr <= ncontr; contr++) {
2296                 errcode = capi20_get_profile(contr, &profile);
2297                 if (errcode != CAPI_NOERROR)
2298                         continue;
2299                 (void) capidrv_addcontr(contr, &profile);
2300         }
2301         proc_init();
2302
2303         printk(KERN_NOTICE "capidrv: Rev %s: loaded\n", rev);
2304         return 0;
2305 }
2306
2307 static void __exit capidrv_exit(void)
2308 {
2309         char rev[10];
2310         char *p;
2311
2312         if ((p = strchr(revision, ':')) != 0) {
2313                 strcpy(rev, p + 1);
2314                 p = strchr(rev, '$');
2315                 *p = 0;
2316         } else {
2317                 strcpy(rev, " ??? ");
2318         }
2319
2320         capi20_release(&global.ap);
2321
2322         proc_exit();
2323
2324         printk(KERN_NOTICE "capidrv: Rev%s: unloaded\n", rev);
2325 }
2326
2327 module_init(capidrv_init);
2328 module_exit(capidrv_exit);