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/seq_file.h> 28#include <linux/capi.h> 29#include <linux/kernelcapi.h> 30#include <linux/ctype.h> 31#include <linux/init.h> 32#include <linux/moduleparam.h> 33 34#include <linux/isdn/capiutil.h> 35#include <linux/isdn/capicmd.h> 36#include "capidrv.h" 37 38static int debugmode = 0; 39 40MODULE_DESCRIPTION("CAPI4Linux: Interface to ISDN4Linux"); 41MODULE_AUTHOR("Carsten Paeth"); 42MODULE_LICENSE("GPL"); 43module_param(debugmode, uint, S_IRUGO | S_IWUSR); 44 45/* -------- type definitions ----------------------------------------- */ 46 47 48struct 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 127struct capidrv_data { 128 struct capi20_appl ap; 129 int ncontr; 130 struct capidrv_contr *contr_list; 131}; 132 133typedef struct capidrv_plci capidrv_plci; 134typedef struct capidrv_ncci capidrv_ncci; 135typedef struct capidrv_contr capidrv_contr; 136typedef struct capidrv_data capidrv_data; 137typedef struct capidrv_bchan capidrv_bchan; 138 139/* -------- data definitions ----------------------------------------- */ 140 141static capidrv_data global; 142static DEFINE_SPINLOCK(global_lock); 143 144static void handle_dtrace_data(capidrv_contr *card, 145 int send, int level2, u8 *data, u16 len); 146 147/* -------- convert functions ---------------------------------------- */ 148 149static 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 172static 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 192static 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 211static _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 224static _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 243static 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 274static 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 287static 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 303static 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 316static 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 332static 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 == NULL) 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 352static 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 361static 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 370static 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 379static 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 399static 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 == NULL) 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 424static 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)) == NULL) 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 438static 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)) == NULL) 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 453static 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 467static int capidrv_add_ack(struct capidrv_ncci *nccip, 468 u16 datahandle, int len) 469{ 470 struct ncci_datahandle_queue *n, **pp; 471 472 n = kmalloc(sizeof(struct ncci_datahandle_queue), GFP_ATOMIC); 473 if (!n) { 474 printk(KERN_ERR "capidrv: kmalloc ncci_datahandle failed\n"); 475 return -1; 476 } 477 n->next = NULL; 478 n->datahandle = datahandle; 479 n->len = len; 480 for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next); 481 *pp = n; 482 return 0; 483} 484 485static int capidrv_del_ack(struct capidrv_ncci *nccip, u16 datahandle) 486{ 487 struct ncci_datahandle_queue **pp, *p; 488 int len; 489 490 for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) { 491 if ((*pp)->datahandle == datahandle) { 492 p = *pp; 493 len = p->len; 494 *pp = (*pp)->next; 495 kfree(p); 496 return len; 497 } 498 } 499 return -1; 500} 501 502/* -------- convert and send capi message ---------------------------- */ 503 504static void send_message(capidrv_contr *card, _cmsg *cmsg) 505{ 506 struct sk_buff *skb; 507 size_t len; 508 509 if (capi_cmsg2message(cmsg, cmsg->buf)) { 510 printk(KERN_ERR "capidrv::send_message: parser failure\n"); 511 return; 512 } 513 len = CAPIMSG_LEN(cmsg->buf); 514 skb = alloc_skb(len, GFP_ATOMIC); 515 if (!skb) { 516 printk(KERN_ERR "capidrv::send_message: can't allocate mem\n"); 517 return; 518 } 519 memcpy(skb_put(skb, len), cmsg->buf, len); 520 if (capi20_put_message(&global.ap, skb) != CAPI_NOERROR) 521 kfree_skb(skb); 522} 523 524/* -------- state machine -------------------------------------------- */ 525 526struct listenstatechange { 527 int actstate; 528 int nextstate; 529 int event; 530}; 531 532static struct listenstatechange listentable[] = 533{ 534 {ST_LISTEN_NONE, ST_LISTEN_WAIT_CONF, EV_LISTEN_REQ}, 535 {ST_LISTEN_ACTIVE, ST_LISTEN_ACTIVE_WAIT_CONF, EV_LISTEN_REQ}, 536 {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_ERROR}, 537 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_ERROR}, 538 {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY}, 539 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY}, 540 {ST_LISTEN_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK}, 541 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK}, 542 {}, 543}; 544 545static void listen_change_state(capidrv_contr *card, int event) 546{ 547 struct listenstatechange *p = listentable; 548 while (p->event) { 549 if (card->state == p->actstate && p->event == event) { 550 if (debugmode) 551 printk(KERN_DEBUG "capidrv-%d: listen_change_state %d -> %d\n", 552 card->contrnr, card->state, p->nextstate); 553 card->state = p->nextstate; 554 return; 555 } 556 p++; 557 } 558 printk(KERN_ERR "capidrv-%d: listen_change_state state=%d event=%d ????\n", 559 card->contrnr, card->state, event); 560 561} 562 563/* ------------------------------------------------------------------ */ 564 565static void p0(capidrv_contr *card, capidrv_plci *plci) 566{ 567 isdn_ctrl cmd; 568 569 card->bchans[plci->chan].contr = NULL; 570 cmd.command = ISDN_STAT_DHUP; 571 cmd.driver = card->myid; 572 cmd.arg = plci->chan; 573 card->interface.statcallb(&cmd); 574 free_plci(card, plci); 575} 576 577/* ------------------------------------------------------------------ */ 578 579struct plcistatechange { 580 int actstate; 581 int nextstate; 582 int event; 583 void (*changefunc)(capidrv_contr *card, capidrv_plci *plci); 584}; 585 586static struct plcistatechange plcitable[] = 587{ 588 /* P-0 */ 589 {ST_PLCI_NONE, ST_PLCI_OUTGOING, EV_PLCI_CONNECT_REQ, NULL}, 590 {ST_PLCI_NONE, ST_PLCI_ALLOCATED, EV_PLCI_FACILITY_IND_UP, NULL}, 591 {ST_PLCI_NONE, ST_PLCI_INCOMING, EV_PLCI_CONNECT_IND, NULL}, 592 {ST_PLCI_NONE, ST_PLCI_RESUMEING, EV_PLCI_RESUME_REQ, NULL}, 593 /* P-0.1 */ 594 {ST_PLCI_OUTGOING, ST_PLCI_NONE, EV_PLCI_CONNECT_CONF_ERROR, p0}, 595 {ST_PLCI_OUTGOING, ST_PLCI_ALLOCATED, EV_PLCI_CONNECT_CONF_OK, NULL}, 596 /* P-1 */ 597 {ST_PLCI_ALLOCATED, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL}, 598 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL}, 599 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL}, 600 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL}, 601 /* P-ACT */ 602 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL}, 603 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL}, 604 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL}, 605 {ST_PLCI_ACTIVE, ST_PLCI_HELD, EV_PLCI_HOLD_IND, NULL}, 606 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_SUSPEND_IND, NULL}, 607 /* P-2 */ 608 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL}, 609 {ST_PLCI_INCOMING, ST_PLCI_FACILITY_IND, EV_PLCI_FACILITY_IND_UP, NULL}, 610 {ST_PLCI_INCOMING, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_RESP, NULL}, 611 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL}, 612 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL}, 613 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL}, 614 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CD_IND, NULL}, 615 /* P-3 */ 616 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL}, 617 {ST_PLCI_FACILITY_IND, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_ACTIVE_IND, NULL}, 618 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL}, 619 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL}, 620 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL}, 621 /* P-4 */ 622 {ST_PLCI_ACCEPTING, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL}, 623 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL}, 624 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL}, 625 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL}, 626 /* P-5 */ 627 {ST_PLCI_DISCONNECTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL}, 628 /* P-6 */ 629 {ST_PLCI_DISCONNECTED, ST_PLCI_NONE, EV_PLCI_DISCONNECT_RESP, p0}, 630 /* P-0.Res */ 631 {ST_PLCI_RESUMEING, ST_PLCI_NONE, EV_PLCI_RESUME_CONF_ERROR, p0}, 632 {ST_PLCI_RESUMEING, ST_PLCI_RESUME, EV_PLCI_RESUME_CONF_OK, NULL}, 633 /* P-RES */ 634 {ST_PLCI_RESUME, ST_PLCI_ACTIVE, EV_PLCI_RESUME_IND, NULL}, 635 /* P-HELD */ 636 {ST_PLCI_HELD, ST_PLCI_ACTIVE, EV_PLCI_RETRIEVE_IND, NULL}, 637 {}, 638}; 639 640static void plci_change_state(capidrv_contr *card, capidrv_plci *plci, int event) 641{ 642 struct plcistatechange *p = plcitable; 643 while (p->event) { 644 if (plci->state == p->actstate && p->event == event) { 645 if (debugmode) 646 printk(KERN_DEBUG "capidrv-%d: plci_change_state:0x%x %d -> %d\n", 647 card->contrnr, plci->plci, plci->state, p->nextstate); 648 plci->state = p->nextstate; 649 if (p->changefunc) 650 p->changefunc(card, plci); 651 return; 652 } 653 p++; 654 } 655 printk(KERN_ERR "capidrv-%d: plci_change_state:0x%x state=%d event=%d ????\n", 656 card->contrnr, plci->plci, plci->state, event); 657} 658 659/* ------------------------------------------------------------------ */ 660 661static _cmsg cmsg; 662 663static void n0(capidrv_contr *card, capidrv_ncci *ncci) 664{ 665 isdn_ctrl cmd; 666 667 capi_fill_DISCONNECT_REQ(&cmsg, 668 global.ap.applid, 669 card->msgid++, 670 ncci->plcip->plci, 671 NULL, /* BChannelinformation */ 672 NULL, /* Keypadfacility */ 673 NULL, /* Useruserdata */ /* $$$$ */ 674 NULL /* Facilitydataarray */ 675 ); 676 plci_change_state(card, ncci->plcip, EV_PLCI_DISCONNECT_REQ); 677 send_message(card, &cmsg); 678 679 cmd.command = ISDN_STAT_BHUP; 680 cmd.driver = card->myid; 681 cmd.arg = ncci->chan; 682 card->interface.statcallb(&cmd); 683 free_ncci(card, ncci); 684} 685 686/* ------------------------------------------------------------------ */ 687 688struct nccistatechange { 689 int actstate; 690 int nextstate; 691 int event; 692 void (*changefunc)(capidrv_contr *card, capidrv_ncci *ncci); 693}; 694 695static struct nccistatechange nccitable[] = 696{ 697 /* N-0 */ 698 {ST_NCCI_NONE, ST_NCCI_OUTGOING, EV_NCCI_CONNECT_B3_REQ, NULL}, 699 {ST_NCCI_NONE, ST_NCCI_INCOMING, EV_NCCI_CONNECT_B3_IND, NULL}, 700 /* N-0.1 */ 701 {ST_NCCI_OUTGOING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_CONF_OK, NULL}, 702 {ST_NCCI_OUTGOING, ST_NCCI_NONE, EV_NCCI_CONNECT_B3_CONF_ERROR, n0}, 703 /* N-1 */ 704 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_CONNECT_B3_REJECT, NULL}, 705 {ST_NCCI_INCOMING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_RESP, NULL}, 706 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL}, 707 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL}, 708 /* N-2 */ 709 {ST_NCCI_ALLOCATED, ST_NCCI_ACTIVE, EV_NCCI_CONNECT_B3_ACTIVE_IND, NULL}, 710 {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL}, 711 {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL}, 712 /* N-ACT */ 713 {ST_NCCI_ACTIVE, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL}, 714 {ST_NCCI_ACTIVE, ST_NCCI_RESETING, EV_NCCI_RESET_B3_REQ, NULL}, 715 {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL}, 716 {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL}, 717 /* N-3 */ 718 {ST_NCCI_RESETING, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL}, 719 {ST_NCCI_RESETING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL}, 720 {ST_NCCI_RESETING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL}, 721 /* N-4 */ 722 {ST_NCCI_DISCONNECTING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL}, 723 {ST_NCCI_DISCONNECTING, ST_NCCI_PREVIOUS, EV_NCCI_DISCONNECT_B3_CONF_ERROR, NULL}, 724 /* N-5 */ 725 {ST_NCCI_DISCONNECTED, ST_NCCI_NONE, EV_NCCI_DISCONNECT_B3_RESP, n0}, 726 {}, 727}; 728 729static void ncci_change_state(capidrv_contr *card, capidrv_ncci *ncci, int event) 730{ 731 struct nccistatechange *p = nccitable; 732 while (p->event) { 733 if (ncci->state == p->actstate && p->event == event) { 734 if (debugmode) 735 printk(KERN_DEBUG "capidrv-%d: ncci_change_state:0x%x %d -> %d\n", 736 card->contrnr, ncci->ncci, ncci->state, p->nextstate); 737 if (p->nextstate == ST_NCCI_PREVIOUS) { 738 ncci->state = ncci->oldstate; 739 ncci->oldstate = p->actstate; 740 } else { 741 ncci->oldstate = p->actstate; 742 ncci->state = p->nextstate; 743 } 744 if (p->changefunc) 745 p->changefunc(card, ncci); 746 return; 747 } 748 p++; 749 } 750 printk(KERN_ERR "capidrv-%d: ncci_change_state:0x%x state=%d event=%d ????\n", 751 card->contrnr, ncci->ncci, ncci->state, event); 752} 753 754/* ------------------------------------------------------------------- */ 755 756static inline int new_bchan(capidrv_contr *card) 757{ 758 int i; 759 for (i = 0; i < card->nbchan; i++) { 760 if (card->bchans[i].plcip == NULL) { 761 card->bchans[i].disconnecting = 0; 762 return i; 763 } 764 } 765 return -1; 766} 767 768/* ------------------------------------------------------------------- */ 769static char *capi_info2str(u16 reason) 770{ 771#ifndef CONFIG_ISDN_CAPI_CAPIDRV_VERBOSE 772 return ".."; 773#else 774 switch (reason) { 775 776/*-- informative values (corresponding message was processed) -----*/ 777 case 0x0001: 778 return "NCPI not supported by current protocol, NCPI ignored"; 779 case 0x0002: 780 return "Flags not supported by current protocol, flags ignored"; 781 case 0x0003: 782 return "Alert already sent by another application"; 783 784/*-- error information concerning CAPI_REGISTER -----*/ 785 case 0x1001: 786 return "Too many applications"; 787 case 0x1002: 788 return "Logical block size too small, must be at least 128 Bytes"; 789 case 0x1003: 790 return "Buffer exceeds 64 kByte"; 791 case 0x1004: 792 return "Message buffer size too small, must be at least 1024 Bytes"; 793 case 0x1005: 794 return "Max. number of logical connections not supported"; 795 case 0x1006: 796 return "Reserved"; 797 case 0x1007: 798 return "The message could not be accepted because of an internal busy condition"; 799 case 0x1008: 800 return "OS resource error (no memory ?)"; 801 case 0x1009: 802 return "CAPI not installed"; 803 case 0x100A: 804 return "Controller does not support external equipment"; 805 case 0x100B: 806 return "Controller does only support external equipment"; 807 808/*-- error information concerning message exchange functions -----*/ 809 case 0x1101: 810 return "Illegal application number"; 811 case 0x1102: 812 return "Illegal command or subcommand or message length less than 12 bytes"; 813 case 0x1103: 814 return "The message could not be accepted because of a queue full condition !! The error code does not imply that CAPI cannot receive messages directed to another controller, PLCI or NCCI"; 815 case 0x1104: 816 return "Queue is empty"; 817 case 0x1105: 818 return "Queue overflow, a message was lost !! This indicates a configuration error. The only recovery from this error is to perform a CAPI_RELEASE"; 819 case 0x1106: 820 return "Unknown notification parameter"; 821 case 0x1107: 822 return "The Message could not be accepted because of an internal busy condition"; 823 case 0x1108: 824 return "OS Resource error (no memory ?)"; 825 case 0x1109: 826 return "CAPI not installed"; 827 case 0x110A: 828 return "Controller does not support external equipment"; 829 case 0x110B: 830 return "Controller does only support external equipment"; 831 832/*-- error information concerning resource / coding problems -----*/ 833 case 0x2001: 834 return "Message not supported in current state"; 835 case 0x2002: 836 return "Illegal Controller / PLCI / NCCI"; 837 case 0x2003: 838 return "Out of PLCI"; 839 case 0x2004: 840 return "Out of NCCI"; 841 case 0x2005: 842 return "Out of LISTEN"; 843 case 0x2006: 844 return "Out of FAX resources (protocol T.30)"; 845 case 0x2007: 846 return "Illegal message parameter coding"; 847 848/*-- error information concerning requested services -----*/ 849 case 0x3001: 850 return "B1 protocol not supported"; 851 case 0x3002: 852 return "B2 protocol not supported"; 853 case 0x3003: 854 return "B3 protocol not supported"; 855 case 0x3004: 856 return "B1 protocol parameter not supported"; 857 case 0x3005: 858 return "B2 protocol parameter not supported"; 859 case 0x3006: 860 return "B3 protocol parameter not supported"; 861 case 0x3007: 862 return "B protocol combination not supported"; 863 case 0x3008: 864 return "NCPI not supported"; 865 case 0x3009: 866 return "CIP Value unknown"; 867 case 0x300A: 868 return "Flags not supported (reserved bits)"; 869 case 0x300B: 870 return "Facility not supported"; 871 case 0x300C: 872 return "Data length not supported by current protocol"; 873 case 0x300D: 874 return "Reset procedure not supported by current protocol"; 875 876/*-- informations about the clearing of a physical connection -----*/ 877 case 0x3301: 878 return "Protocol error layer 1 (broken line or B-channel removed by signalling protocol)"; 879 case 0x3302: 880 return "Protocol error layer 2"; 881 case 0x3303: 882 return "Protocol error layer 3"; 883 case 0x3304: 884 return "Another application got that call"; 885/*-- T.30 specific reasons -----*/ 886 case 0x3311: 887 return "Connecting not successful (remote station is no FAX G3 machine)"; 888 case 0x3312: 889 return "Connecting not successful (training error)"; 890 case 0x3313: 891 return "Disconnected before transfer (remote station does not support transfer mode, e.g. resolution)"; 892 case 0x3314: 893 return "Disconnected during transfer (remote abort)"; 894 case 0x3315: 895 return "Disconnected during transfer (remote procedure error, e.g. unsuccessful repetition of T.30 commands)"; 896 case 0x3316: 897 return "Disconnected during transfer (local tx data underrun)"; 898 case 0x3317: 899 return "Disconnected during transfer (local rx data overflow)"; 900 case 0x3318: 901 return "Disconnected during transfer (local abort)"; 902 case 0x3319: 903 return "Illegal parameter coding (e.g. SFF coding error)"; 904 905/*-- disconnect causes from the network according to ETS 300 102-1/Q.931 -----*/ 906 case 0x3481: return "Unallocated (unassigned) number"; 907 case 0x3482: return "No route to specified transit network"; 908 case 0x3483: return "No route to destination"; 909 case 0x3486: return "Channel unacceptable"; 910 case 0x3487: 911 return "Call awarded and being delivered in an established channel"; 912 case 0x3490: return "Normal call clearing"; 913 case 0x3491: return "User busy"; 914 case 0x3492: return "No user responding"; 915 case 0x3493: return "No answer from user (user alerted)"; 916 case 0x3495: return "Call rejected"; 917 case 0x3496: return "Number changed"; 918 case 0x349A: return "Non-selected user clearing"; 919 case 0x349B: return "Destination out of order"; 920 case 0x349C: return "Invalid number format"; 921 case 0x349D: return "Facility rejected"; 922 case 0x349E: return "Response to STATUS ENQUIRY"; 923 case 0x349F: return "Normal, unspecified"; 924 case 0x34A2: return "No circuit / channel available"; 925 case 0x34A6: return "Network out of order"; 926 case 0x34A9: return "Temporary failure"; 927 case 0x34AA: return "Switching equipment congestion"; 928 case 0x34AB: return "Access information discarded"; 929 case 0x34AC: return "Requested circuit / channel not available"; 930 case 0x34AF: return "Resources unavailable, unspecified"; 931 case 0x34B1: return "Quality of service unavailable"; 932 case 0x34B2: return "Requested facility not subscribed"; 933 case 0x34B9: return "Bearer capability not authorized"; 934 case 0x34BA: return "Bearer capability not presently available"; 935 case 0x34BF: return "Service or option not available, unspecified"; 936 case 0x34C1: return "Bearer capability not implemented"; 937 case 0x34C2: return "Channel type not implemented"; 938 case 0x34C5: return "Requested facility not implemented"; 939 case 0x34C6: return "Only restricted digital information bearer capability is available"; 940 case 0x34CF: return "Service or option not implemented, unspecified"; 941 case 0x34D1: return "Invalid call reference value"; 942 case 0x34D2: return "Identified channel does not exist"; 943 case 0x34D3: return "A suspended call exists, but this call identity does not"; 944 case 0x34D4: return "Call identity in use"; 945 case 0x34D5: return "No call suspended"; 946 case 0x34D6: return "Call having the requested call identity has been cleared"; 947 case 0x34D8: return "Incompatible destination"; 948 case 0x34DB: return "Invalid transit network selection"; 949 case 0x34DF: return "Invalid message, unspecified"; 950 case 0x34E0: return "Mandatory information element is missing"; 951 case 0x34E1: return "Message type non-existent or not implemented"; 952 case 0x34E2: return "Message not compatible with call state or message type non-existent or not implemented"; 953 case 0x34E3: return "Information element non-existent or not implemented"; 954 case 0x34E4: return "Invalid information element contents"; 955 case 0x34E5: return "Message not compatible with call state"; 956 case 0x34E6: return "Recovery on timer expiry"; 957 case 0x34EF: return "Protocol error, unspecified"; 958 case 0x34FF: return "Interworking, unspecified"; 959 960 default: return "No additional information"; 961 } 962#endif 963} 964 965static void handle_controller(_cmsg *cmsg) 966{ 967 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f); 968 969 if (!card) { 970 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n", 971 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 972 cmsg->adr.adrController & 0x7f); 973 return; 974 } 975 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) { 976 977 case CAPI_LISTEN_CONF: /* Controller */ 978 if (debugmode) 979 printk(KERN_DEBUG "capidrv-%d: listenconf Info=0x%4x (%s) cipmask=0x%x\n", 980 card->contrnr, cmsg->Info, capi_info2str(cmsg->Info), card->cipmask); 981 if (cmsg->Info) { 982 listen_change_state(card, EV_LISTEN_CONF_ERROR); 983 } else if (card->cipmask == 0) { 984 listen_change_state(card, EV_LISTEN_CONF_EMPTY); 985 } else { 986 listen_change_state(card, EV_LISTEN_CONF_OK); 987 } 988 break; 989 990 case CAPI_MANUFACTURER_IND: /* Controller */ 991 if (cmsg->ManuID == 0x214D5641 992 && cmsg->Class == 0 993 && cmsg->Function == 1) { 994 u8 *data = cmsg->ManuData + 3; 995 u16 len = cmsg->ManuData[0]; 996 u16 layer; 997 int direction; 998 if (len == 255) { 999 len = (cmsg->ManuData[1] | (cmsg->ManuData[2] << 8)); 1000 data += 2; 1001 } 1002 len -= 2; 1003 layer = ((*(data - 1)) << 8) | *(data - 2); 1004 if (layer & 0x300) 1005 direction = (layer & 0x200) ? 0 : 1; 1006 else direction = (layer & 0x800) ? 0 : 1; 1007 if (layer & 0x0C00) { 1008 if ((layer & 0xff) == 0x80) { 1009 handle_dtrace_data(card, direction, 1, data, len); 1010 break; 1011 } 1012 } else if ((layer & 0xff) < 0x80) { 1013 handle_dtrace_data(card, direction, 0, data, len); 1014 break; 1015 } 1016 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x layer 0x%x, ignored\n", 1017 card->contrnr, 1018 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1019 cmsg->adr.adrController, layer); 1020 break; 1021 } 1022 goto ignored; 1023 case CAPI_MANUFACTURER_CONF: /* Controller */ 1024 if (cmsg->ManuID == 0x214D5641) { 1025 char *s = NULL; 1026 switch (cmsg->Class) { 1027 case 0: break; 1028 case 1: s = "unknown class"; break; 1029 case 2: s = "unknown function"; break; 1030 default: s = "unknown error"; break; 1031 } 1032 if (s) 1033 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x function %d: %s\n", 1034 card->contrnr, 1035 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1036 cmsg->adr.adrController, 1037 cmsg->Function, s); 1038 break; 1039 } 1040 goto ignored; 1041 case CAPI_FACILITY_IND: /* Controller/plci/ncci */ 1042 goto ignored; 1043 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */ 1044 goto ignored; 1045 case CAPI_INFO_IND: /* Controller/plci */ 1046 goto ignored; 1047 case CAPI_INFO_CONF: /* Controller/plci */ 1048 goto ignored; 1049 1050 default: 1051 printk(KERN_ERR "capidrv-%d: got %s from controller 0x%x ???", 1052 card->contrnr, 1053 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1054 cmsg->adr.adrController); 1055 } 1056 return; 1057 1058ignored: 1059 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x ignored\n", 1060 card->contrnr, 1061 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1062 cmsg->adr.adrController); 1063} 1064 1065static void handle_incoming_call(capidrv_contr *card, _cmsg *cmsg) 1066{ 1067 capidrv_plci *plcip; 1068 capidrv_bchan *bchan; 1069 isdn_ctrl cmd; 1070 int chan; 1071 1072 if ((chan = new_bchan(card)) == -1) { 1073 printk(KERN_ERR "capidrv-%d: incoming call on not existing bchan ?\n", card->contrnr); 1074 return; 1075 } 1076 bchan = &card->bchans[chan]; 1077 if ((plcip = new_plci(card, chan)) == NULL) { 1078 printk(KERN_ERR "capidrv-%d: incoming call: no memory, sorry.\n", card->contrnr); 1079 return; 1080 } 1081 bchan->incoming = 1; 1082 plcip->plci = cmsg->adr.adrPLCI; 1083 plci_change_state(card, plcip, EV_PLCI_CONNECT_IND); 1084 1085 cmd.command = ISDN_STAT_ICALL; 1086 cmd.driver = card->myid; 1087 cmd.arg = chan; 1088 memset(&cmd.parm.setup, 0, sizeof(cmd.parm.setup)); 1089 strncpy(cmd.parm.setup.phone, 1090 cmsg->CallingPartyNumber + 3, 1091 cmsg->CallingPartyNumber[0] - 2); 1092 strncpy(cmd.parm.setup.eazmsn, 1093 cmsg->CalledPartyNumber + 2, 1094 cmsg->CalledPartyNumber[0] - 1); 1095 cmd.parm.setup.si1 = cip2si1(cmsg->CIPValue); 1096 cmd.parm.setup.si2 = cip2si2(cmsg->CIPValue); 1097 cmd.parm.setup.plan = cmsg->CallingPartyNumber[1]; 1098 cmd.parm.setup.screen = cmsg->CallingPartyNumber[2]; 1099 1100 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s\n", 1101 card->contrnr, 1102 cmd.parm.setup.phone, 1103 cmd.parm.setup.si1, 1104 cmd.parm.setup.si2, 1105 cmd.parm.setup.eazmsn); 1106 1107 if (cmd.parm.setup.si1 == 1 && cmd.parm.setup.si2 != 0) { 1108 printk(KERN_INFO "capidrv-%d: patching si2=%d to 0 for VBOX\n", 1109 card->contrnr, 1110 cmd.parm.setup.si2); 1111 cmd.parm.setup.si2 = 0; 1112 } 1113 1114 switch (card->interface.statcallb(&cmd)) { 1115 case 0: 1116 case 3: 1117 /* No device matching this call. 1118 * and isdn_common.c has send a HANGUP command 1119 * which is ignored in state ST_PLCI_INCOMING, 1120 * so we send RESP to ignore the call 1121 */ 1122 capi_cmsg_answer(cmsg); 1123 cmsg->Reject = 1; /* ignore */ 1124 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT); 1125 send_message(card, cmsg); 1126 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s ignored\n", 1127 card->contrnr, 1128 cmd.parm.setup.phone, 1129 cmd.parm.setup.si1, 1130 cmd.parm.setup.si2, 1131 cmd.parm.setup.eazmsn); 1132 break; 1133 case 1: 1134 /* At least one device matching this call (RING on ttyI) 1135 * HL-driver may send ALERTING on the D-channel in this 1136 * case. 1137 * really means: RING on ttyI or a net interface 1138 * accepted this call already. 1139 * 1140 * If the call was accepted, state has already changed, 1141 * and CONNECT_RESP already sent. 1142 */ 1143 if (plcip->state == ST_PLCI_INCOMING) { 1144 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s tty alerting\n", 1145 card->contrnr, 1146 cmd.parm.setup.phone, 1147 cmd.parm.setup.si1, 1148 cmd.parm.setup.si2, 1149 cmd.parm.setup.eazmsn); 1150 capi_fill_ALERT_REQ(cmsg, 1151 global.ap.applid, 1152 card->msgid++, 1153 plcip->plci, /* adr */ 1154 NULL,/* BChannelinformation */ 1155 NULL,/* Keypadfacility */ 1156 NULL,/* Useruserdata */ 1157 NULL /* Facilitydataarray */ 1158 ); 1159 plcip->msgid = cmsg->Messagenumber; 1160 send_message(card, cmsg); 1161 } else { 1162 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s on netdev\n", 1163 card->contrnr, 1164 cmd.parm.setup.phone, 1165 cmd.parm.setup.si1, 1166 cmd.parm.setup.si2, 1167 cmd.parm.setup.eazmsn); 1168 } 1169 break; 1170 1171 case 2: /* Call will be rejected. */ 1172 capi_cmsg_answer(cmsg); 1173 cmsg->Reject = 2; /* reject call, normal call clearing */ 1174 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT); 1175 send_message(card, cmsg); 1176 break; 1177 1178 default: 1179 /* An error happened. (Invalid parameters for example.) */ 1180 capi_cmsg_answer(cmsg); 1181 cmsg->Reject = 8; /* reject call, 1182 destination out of order */ 1183 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT); 1184 send_message(card, cmsg); 1185 break; 1186 } 1187 return; 1188} 1189 1190static void handle_plci(_cmsg *cmsg) 1191{ 1192 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f); 1193 capidrv_plci *plcip; 1194 isdn_ctrl cmd; 1195 _cdebbuf *cdb; 1196 1197 if (!card) { 1198 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n", 1199 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1200 cmsg->adr.adrController & 0x7f); 1201 return; 1202 } 1203 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) { 1204 1205 case CAPI_DISCONNECT_IND: /* plci */ 1206 if (cmsg->Reason) { 1207 printk(KERN_INFO "capidrv-%d: %s reason 0x%x (%s) for plci 0x%x\n", 1208 card->contrnr, 1209 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1210 cmsg->Reason, capi_info2str(cmsg->Reason), cmsg->adr.adrPLCI); 1211 } 1212 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) { 1213 capi_cmsg_answer(cmsg); 1214 send_message(card, cmsg); 1215 goto notfound; 1216 } 1217 card->bchans[plcip->chan].disconnecting = 1; 1218 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_IND); 1219 capi_cmsg_answer(cmsg); 1220 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_RESP); 1221 send_message(card, cmsg); 1222 break; 1223 1224 case CAPI_DISCONNECT_CONF: /* plci */ 1225 if (cmsg->Info) { 1226 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n", 1227 card->contrnr, 1228 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1229 cmsg->Info, capi_info2str(cmsg->Info), 1230 cmsg->adr.adrPLCI); 1231 } 1232 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) 1233 goto notfound; 1234 1235 card->bchans[plcip->chan].disconnecting = 1; 1236 break; 1237 1238 case CAPI_ALERT_CONF: /* plci */ 1239 if (cmsg->Info) { 1240 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n", 1241 card->contrnr, 1242 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1243 cmsg->Info, capi_info2str(cmsg->Info), 1244 cmsg->adr.adrPLCI); 1245 } 1246 break; 1247 1248 case CAPI_CONNECT_IND: /* plci */ 1249 handle_incoming_call(card, cmsg); 1250 break; 1251 1252 case CAPI_CONNECT_CONF: /* plci */ 1253 if (cmsg->Info) { 1254 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n", 1255 card->contrnr, 1256 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1257 cmsg->Info, capi_info2str(cmsg->Info), 1258 cmsg->adr.adrPLCI); 1259 } 1260 if (!(plcip = find_plci_by_msgid(card, cmsg->Messagenumber))) 1261 goto notfound; 1262 1263 plcip->plci = cmsg->adr.adrPLCI; 1264 if (cmsg->Info) { 1265 plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_ERROR); 1266 } else { 1267 plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_OK); 1268 } 1269 break; 1270 1271 case CAPI_CONNECT_ACTIVE_IND: /* plci */ 1272 1273 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) 1274 goto notfound; 1275 1276 if (card->bchans[plcip->chan].incoming) { 1277 capi_cmsg_answer(cmsg); 1278 plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND); 1279 send_message(card, cmsg); 1280 } else { 1281 capidrv_ncci *nccip; 1282 capi_cmsg_answer(cmsg); 1283 send_message(card, cmsg); 1284 1285 nccip = new_ncci(card, plcip, cmsg->adr.adrPLCI); 1286 1287 if (!nccip) { 1288 printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr); 1289 break; /* $$$$ */ 1290 } 1291 capi_fill_CONNECT_B3_REQ(cmsg, 1292 global.ap.applid, 1293 card->msgid++, 1294 plcip->plci, /* adr */ 1295 NULL /* NCPI */ 1296 ); 1297 nccip->msgid = cmsg->Messagenumber; 1298 plci_change_state(card, plcip, 1299 EV_PLCI_CONNECT_ACTIVE_IND); 1300 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_REQ); 1301 send_message(card, cmsg); 1302 cmd.command = ISDN_STAT_DCONN; 1303 cmd.driver = card->myid; 1304 cmd.arg = plcip->chan; 1305 card->interface.statcallb(&cmd); 1306 } 1307 break; 1308 1309 case CAPI_INFO_IND: /* Controller/plci */ 1310 1311 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) 1312 goto notfound; 1313 1314 if (cmsg->InfoNumber == 0x4000) { 1315 if (cmsg->InfoElement[0] == 4) { 1316 cmd.command = ISDN_STAT_CINF; 1317 cmd.driver = card->myid; 1318 cmd.arg = plcip->chan; 1319 sprintf(cmd.parm.num, "%lu", 1320 (unsigned long) 1321 ((u32) cmsg->InfoElement[1] 1322 | ((u32) (cmsg->InfoElement[2]) << 8) 1323 | ((u32) (cmsg->InfoElement[3]) << 16) 1324 | ((u32) (cmsg->InfoElement[4]) << 24))); 1325 card->interface.statcallb(&cmd); 1326 break; 1327 } 1328 } 1329 cdb = capi_cmsg2str(cmsg); 1330 if (cdb) { 1331 printk(KERN_WARNING "capidrv-%d: %s\n", 1332 card->contrnr, cdb->buf); 1333 cdebbuf_free(cdb); 1334 } else 1335 printk(KERN_WARNING "capidrv-%d: CAPI_INFO_IND InfoNumber %x not handled\n", 1336 card->contrnr, cmsg->InfoNumber); 1337 1338 break; 1339 1340 case CAPI_CONNECT_ACTIVE_CONF: /* plci */ 1341 goto ignored; 1342 case CAPI_SELECT_B_PROTOCOL_CONF: /* plci */ 1343 goto ignored; 1344 case CAPI_FACILITY_IND: /* Controller/plci/ncci */ 1345 goto ignored; 1346 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */ 1347 goto ignored; 1348 1349 case CAPI_INFO_CONF: /* Controller/plci */ 1350 goto ignored; 1351 1352 default: 1353 printk(KERN_ERR "capidrv-%d: got %s for plci 0x%x ???", 1354 card->contrnr, 1355 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1356 cmsg->adr.adrPLCI); 1357 } 1358 return; 1359ignored: 1360 printk(KERN_INFO "capidrv-%d: %s for plci 0x%x ignored\n", 1361 card->contrnr, 1362 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1363 cmsg->adr.adrPLCI); 1364 return; 1365notfound: 1366 printk(KERN_ERR "capidrv-%d: %s: plci 0x%x not found\n", 1367 card->contrnr, 1368 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1369 cmsg->adr.adrPLCI); 1370 return; 1371} 1372 1373static void handle_ncci(_cmsg *cmsg) 1374{ 1375 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f); 1376 capidrv_plci *plcip; 1377 capidrv_ncci *nccip; 1378 isdn_ctrl cmd; 1379 int len; 1380 1381 if (!card) { 1382 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n", 1383 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1384 cmsg->adr.adrController & 0x7f); 1385 return; 1386 } 1387 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) { 1388 1389 case CAPI_CONNECT_B3_ACTIVE_IND: /* ncci */ 1390 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) 1391 goto notfound; 1392 1393 capi_cmsg_answer(cmsg); 1394 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_ACTIVE_IND); 1395 send_message(card, cmsg); 1396 1397 cmd.command = ISDN_STAT_BCONN; 1398 cmd.driver = card->myid; 1399 cmd.arg = nccip->chan; 1400 card->interface.statcallb(&cmd); 1401 1402 printk(KERN_INFO "capidrv-%d: chan %d up with ncci 0x%x\n", 1403 card->contrnr, nccip->chan, nccip->ncci); 1404 break; 1405 1406 case CAPI_CONNECT_B3_ACTIVE_CONF: /* ncci */ 1407 goto ignored; 1408 1409 case CAPI_CONNECT_B3_IND: /* ncci */ 1410 1411 plcip = find_plci_by_ncci(card, cmsg->adr.adrNCCI); 1412 if (plcip) { 1413 nccip = new_ncci(card, plcip, cmsg->adr.adrNCCI); 1414 if (nccip) { 1415 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_IND); 1416 capi_fill_CONNECT_B3_RESP(cmsg, 1417 global.ap.applid, 1418 card->msgid++, 1419 nccip->ncci, /* adr */ 1420 0, /* Reject */ 1421 NULL /* NCPI */ 1422 ); 1423 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_RESP); 1424 send_message(card, cmsg); 1425 break; 1426 } 1427 printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr); 1428 } else { 1429 printk(KERN_ERR "capidrv-%d: %s: plci for ncci 0x%x not found\n", 1430 card->contrnr, 1431 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1432 cmsg->adr.adrNCCI); 1433 } 1434 capi_fill_CONNECT_B3_RESP(cmsg, 1435 global.ap.applid, 1436 card->msgid++, 1437 cmsg->adr.adrNCCI, 1438 2, /* Reject */ 1439 NULL /* NCPI */ 1440 ); 1441 send_message(card, cmsg); 1442 break; 1443 1444 case CAPI_CONNECT_B3_CONF: /* ncci */ 1445 1446 if (!(nccip = find_ncci_by_msgid(card, 1447 cmsg->adr.adrNCCI, 1448 cmsg->Messagenumber))) 1449 goto notfound; 1450 1451 nccip->ncci = cmsg->adr.adrNCCI; 1452 if (cmsg->Info) { 1453 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n", 1454 card->contrnr, 1455 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1456 cmsg->Info, capi_info2str(cmsg->Info), 1457 cmsg->adr.adrNCCI); 1458 } 1459 1460 if (cmsg->Info) 1461 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_ERROR); 1462 else 1463 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_OK); 1464 break; 1465 1466 case CAPI_CONNECT_B3_T90_ACTIVE_IND: /* ncci */ 1467 capi_cmsg_answer(cmsg); 1468 send_message(card, cmsg); 1469 break; 1470 1471 case CAPI_DATA_B3_IND: /* ncci */ 1472 /* handled in handle_data() */ 1473 goto ignored; 1474 1475 case CAPI_DATA_B3_CONF: /* ncci */ 1476 if (cmsg->Info) { 1477 printk(KERN_WARNING "CAPI_DATA_B3_CONF: Info %x - %s\n", 1478 cmsg->Info, capi_info2str(cmsg->Info)); 1479 } 1480 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) 1481 goto notfound; 1482 1483 len = capidrv_del_ack(nccip, cmsg->DataHandle); 1484 if (len < 0) 1485 break; 1486 cmd.command = ISDN_STAT_BSENT; 1487 cmd.driver = card->myid; 1488 cmd.arg = nccip->chan; 1489 cmd.parm.length = len; 1490 card->interface.statcallb(&cmd); 1491 break; 1492 1493 case CAPI_DISCONNECT_B3_IND: /* ncci */ 1494 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) 1495 goto notfound; 1496 1497 card->bchans[nccip->chan].disconnecting = 1; 1498 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_IND); 1499 capi_cmsg_answer(cmsg); 1500 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_RESP); 1501 send_message(card, cmsg); 1502 break; 1503 1504 case CAPI_DISCONNECT_B3_CONF: /* ncci */ 1505 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) 1506 goto notfound; 1507 if (cmsg->Info) { 1508 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n", 1509 card->contrnr, 1510 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1511 cmsg->Info, capi_info2str(cmsg->Info), 1512 cmsg->adr.adrNCCI); 1513 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_CONF_ERROR); 1514 } 1515 break; 1516 1517 case CAPI_RESET_B3_IND: /* ncci */ 1518 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) 1519 goto notfound; 1520 ncci_change_state(card, nccip, EV_NCCI_RESET_B3_IND); 1521 capi_cmsg_answer(cmsg); 1522 send_message(card, cmsg); 1523 break; 1524 1525 case CAPI_RESET_B3_CONF: /* ncci */ 1526 goto ignored; /* $$$$ */ 1527 1528 case CAPI_FACILITY_IND: /* Controller/plci/ncci */ 1529 goto ignored; 1530 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */ 1531 goto ignored; 1532 1533 default: 1534 printk(KERN_ERR "capidrv-%d: got %s for ncci 0x%x ???", 1535 card->contrnr, 1536 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1537 cmsg->adr.adrNCCI); 1538 } 1539 return; 1540ignored: 1541 printk(KERN_INFO "capidrv-%d: %s for ncci 0x%x ignored\n", 1542 card->contrnr, 1543 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1544 cmsg->adr.adrNCCI); 1545 return; 1546notfound: 1547 printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n", 1548 card->contrnr, 1549 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1550 cmsg->adr.adrNCCI); 1551} 1552 1553 1554static void handle_data(_cmsg *cmsg, struct sk_buff *skb) 1555{ 1556 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f); 1557 capidrv_ncci *nccip; 1558 1559 if (!card) { 1560 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n", 1561 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1562 cmsg->adr.adrController & 0x7f); 1563 kfree_skb(skb); 1564 return; 1565 } 1566 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) { 1567 printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n", 1568 card->contrnr, 1569 capi_cmd2str(cmsg->Command, cmsg->Subcommand), 1570 cmsg->adr.adrNCCI); 1571 kfree_skb(skb); 1572 return; 1573 } 1574 (void) skb_pull(skb, CAPIMSG_LEN(skb->data)); 1575 card->interface.rcvcallb_skb(card->myid, nccip->chan, skb); 1576 capi_cmsg_answer(cmsg); 1577 send_message(card, cmsg); 1578} 1579 1580static _cmsg s_cmsg; 1581 1582static void capidrv_recv_message(struct capi20_appl *ap, struct sk_buff *skb) 1583{ 1584 if (capi_message2cmsg(&s_cmsg, skb->data)) { 1585 printk(KERN_ERR "capidrv: applid=%d: received invalid message\n", 1586 ap->applid); 1587 kfree_skb(skb); 1588 return; 1589 } 1590 if (debugmode > 3) { 1591 _cdebbuf *cdb = capi_cmsg2str(&s_cmsg); 1592 1593 if (cdb) { 1594 printk(KERN_DEBUG "%s: applid=%d %s\n", __func__, 1595 ap->applid, cdb->buf); 1596 cdebbuf_free(cdb); 1597 } else 1598 printk(KERN_DEBUG "%s: applid=%d %s not traced\n", 1599 __func__, ap->applid, 1600 capi_cmd2str(s_cmsg.Command, s_cmsg.Subcommand)); 1601 } 1602 if (s_cmsg.Command == CAPI_DATA_B3 1603 && s_cmsg.Subcommand == CAPI_IND) { 1604 handle_data(&s_cmsg, skb); 1605 return; 1606 } 1607 if ((s_cmsg.adr.adrController & 0xffffff00) == 0) 1608 handle_controller(&s_cmsg); 1609 else if ((s_cmsg.adr.adrPLCI & 0xffff0000) == 0) 1610 handle_plci(&s_cmsg); 1611 else 1612 handle_ncci(&s_cmsg); 1613 /* 1614 * data of skb used in s_cmsg, 1615 * free data when s_cmsg is not used again 1616 * thanks to Lars Heete <hel@admin.de> 1617 */ 1618 kfree_skb(skb); 1619} 1620 1621/* ------------------------------------------------------------------- */ 1622 1623#define PUTBYTE_TO_STATUS(card, byte) \ 1624 do { \ 1625 *(card)->q931_write++ = (byte); \ 1626 if ((card)->q931_write > (card)->q931_end) \ 1627 (card)->q931_write = (card)->q931_buf; \ 1628 } while (0) 1629 1630static void handle_dtrace_data(capidrv_contr *card, 1631 int send, int level2, u8 *data, u16 len) 1632{ 1633 u8 *p, *end; 1634 isdn_ctrl cmd; 1635 1636 if (!len) { 1637 printk(KERN_DEBUG "capidrv-%d: avmb1_q931_data: len == %d\n", 1638 card->contrnr, len); 1639 return; 1640 } 1641 1642 if (level2) { 1643 PUTBYTE_TO_STATUS(card, 'D'); 1644 PUTBYTE_TO_STATUS(card, '2'); 1645 PUTBYTE_TO_STATUS(card, send ? '>' : '<'); 1646 PUTBYTE_TO_STATUS(card, ':'); 1647 } else { 1648 PUTBYTE_TO_STATUS(card, 'D'); 1649 PUTBYTE_TO_STATUS(card, '3'); 1650 PUTBYTE_TO_STATUS(card, send ? '>' : '<'); 1651 PUTBYTE_TO_STATUS(card, ':'); 1652 } 1653 1654 for (p = data, end = data + len; p < end; p++) { 1655 PUTBYTE_TO_STATUS(card, ' '); 1656 PUTBYTE_TO_STATUS(card, hex_asc_hi(*p)); 1657 PUTBYTE_TO_STATUS(card, hex_asc_lo(*p)); 1658 } 1659 PUTBYTE_TO_STATUS(card, '\n'); 1660 1661 cmd.command = ISDN_STAT_STAVAIL; 1662 cmd.driver = card->myid; 1663 cmd.arg = len * 3 + 5; 1664 card->interface.statcallb(&cmd); 1665} 1666 1667/* ------------------------------------------------------------------- */ 1668 1669static _cmsg cmdcmsg; 1670 1671static int capidrv_ioctl(isdn_ctrl *c, capidrv_contr *card) 1672{ 1673 switch (c->arg) { 1674 case 1: 1675 debugmode = (int)(*((unsigned int *)c->parm.num)); 1676 printk(KERN_DEBUG "capidrv-%d: debugmode=%d\n", 1677 card->contrnr, debugmode); 1678 return 0; 1679 default: 1680 printk(KERN_DEBUG "capidrv-%d: capidrv_ioctl(%ld) called ??\n", 1681 card->contrnr, c->arg); 1682 return -EINVAL; 1683 } 1684 return -EINVAL; 1685} 1686 1687/* 1688 * Handle leased lines (CAPI-Bundling) 1689 */ 1690 1691struct internal_bchannelinfo { 1692 unsigned short channelalloc; 1693 unsigned short operation; 1694 unsigned char cmask[31]; 1695}; 1696 1697static int decodeFVteln(char *teln, unsigned long *bmaskp, int *activep) 1698{ 1699 unsigned long bmask = 0; 1700 int active = !0; 1701 char *s; 1702 int i; 1703 1704 if (strncmp(teln, "FV:", 3) != 0) 1705 return 1; 1706 s = teln + 3; 1707 while (*s && *s == ' ') s++; 1708 if (!*s) return -2; 1709 if (*s == 'p' || *s == 'P') { 1710 active = 0; 1711 s++; 1712 } 1713 if (*s == 'a' || *s == 'A') { 1714 active = !0; 1715 s++; 1716 } 1717 while (*s) { 1718 int digit1 = 0; 1719 int digit2 = 0; 1720 char *endp; 1721 1722 digit1 = simple_strtoul(s, &endp, 10); 1723 if (s == endp) 1724 return -3; 1725 s = endp; 1726 1727 if (digit1 <= 0 || digit1 > 30) return -4; 1728 if (*s == 0 || *s == ',' || *s == ' ') { 1729 bmask |= (1 << digit1); 1730 digit1 = 0; 1731 if (*s) s++; 1732 continue; 1733 } 1734 if (*s != '-') return -5; 1735 s++; 1736 1737 digit2 = simple_strtoul(s, &endp, 10); 1738 if (s == endp) 1739 return -3; 1740 s = endp; 1741 1742 if (digit2 <= 0 || digit2 > 30) return -4; 1743 if (*s == 0 || *s == ',' || *s == ' ') { 1744 if (digit1 > digit2) 1745 for (i = digit2; i <= digit1; i++) 1746 bmask |= (1 << i); 1747 else 1748 for (i = digit1; i <= digit2; i++) 1749 bmask |= (1 << i); 1750 digit1 = digit2 = 0; 1751 if (*s) s++; 1752 continue; 1753 } 1754 return -6; 1755 } 1756 if (activep) *activep = active; 1757 if (bmaskp) *bmaskp = bmask; 1758 return 0; 1759} 1760 1761static int FVteln2capi20(char *teln, u8 AdditionalInfo[1 + 2 + 2 + 31]) 1762{ 1763 unsigned long bmask; 1764 int active; 1765 int rc, i; 1766 1767 rc = decodeFVteln(teln, &bmask, &active); 1768 if (rc) return rc; 1769 /* Length */ 1770 AdditionalInfo[0] = 2 + 2 + 31; 1771 /* Channel: 3 => use channel allocation */ 1772 AdditionalInfo[1] = 3; AdditionalInfo[2] = 0; 1773 /* Operation: 0 => DTE mode, 1 => DCE mode */ 1774 if (active) { 1775 AdditionalInfo[3] = 0; AdditionalInfo[4] = 0; 1776 } else { 1777 AdditionalInfo[3] = 1; AdditionalInfo[4] = 0; 1778 } 1779 /* Channel mask array */ 1780 AdditionalInfo[5] = 0; /* no D-Channel */ 1781 for (i = 1; i <= 30; i++) 1782 AdditionalInfo[5 + i] = (bmask & (1 << i)) ? 0xff : 0; 1783 return 0; 1784} 1785 1786static int capidrv_command(isdn_ctrl *c, capidrv_contr *card) 1787{ 1788 isdn_ctrl cmd; 1789 struct capidrv_bchan *bchan; 1790 struct capidrv_plci *plcip; 1791 u8 AdditionalInfo[1 + 2 + 2 + 31]; 1792 int rc, isleasedline = 0; 1793 1794 if (c->command == ISDN_CMD_IOCTL) 1795 return capidrv_ioctl(c, card); 1796 1797 switch (c->command) { 1798 case ISDN_CMD_DIAL: { 1799 u8 calling[ISDN_MSNLEN + 3]; 1800 u8 called[ISDN_MSNLEN + 2]; 1801 1802 if (debugmode) 1803 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_DIAL(ch=%ld,\"%s,%d,%d,%s\")\n", 1804 card->contrnr, 1805 c->arg, 1806 c->parm.setup.phone, 1807 c->parm.setup.si1, 1808 c->parm.setup.si2, 1809 c->parm.setup.eazmsn); 1810 1811 bchan = &card->bchans[c->arg % card->nbchan]; 1812 1813 if (bchan->plcip) { 1814 printk(KERN_ERR "capidrv-%d: dail ch=%ld,\"%s,%d,%d,%s\" in use (plci=0x%x)\n", 1815 card->contrnr, 1816 c->arg, 1817 c->parm.setup.phone, 1818 c->parm.setup.si1, 1819 c->parm.setup.si2, 1820 c->parm.setup.eazmsn, 1821 bchan->plcip->plci); 1822 return 0; 1823 } 1824 bchan->si1 = c->parm.setup.si1; 1825 bchan->si2 = c->parm.setup.si2; 1826 1827 strncpy(bchan->num, c->parm.setup.phone, sizeof(bchan->num)); 1828 strncpy(bchan->mynum, c->parm.setup.eazmsn, sizeof(bchan->mynum)); 1829 rc = FVteln2capi20(bchan->num, AdditionalInfo); 1830 isleasedline = (rc == 0); 1831 if (rc < 0) 1832 printk(KERN_ERR "capidrv-%d: WARNING: invalid leased linedefinition \"%s\"\n", card->contrnr, bchan->num); 1833 1834 if (isleasedline) { 1835 calling[0] = 0; 1836 called[0] = 0; 1837 if (debugmode) 1838 printk(KERN_DEBUG "capidrv-%d: connecting leased line\n", card->contrnr); 1839 } else { 1840 calling[0] = strlen(bchan->mynum) + 2; 1841 calling[1] = 0; 1842 calling[2] = 0x80; 1843 strncpy(calling + 3, bchan->mynum, ISDN_MSNLEN); 1844 called[0] = strlen(bchan->num) + 1; 1845 called[1] = 0x80; 1846 strncpy(called + 2, bchan->num, ISDN_MSNLEN); 1847 } 1848 1849 capi_fill_CONNECT_REQ(&cmdcmsg, 1850 global.ap.applid, 1851 card->msgid++, 1852 card->contrnr, /* adr */ 1853 si2cip(bchan->si1, bchan->si2), /* cipvalue */ 1854 called, /* CalledPartyNumber */ 1855 calling, /* CallingPartyNumber */ 1856 NULL, /* CalledPartySubaddress */ 1857 NULL, /* CallingPartySubaddress */ 1858 b1prot(bchan->l2, bchan->l3), /* B1protocol */ 1859 b2prot(bchan->l2, bchan->l3), /* B2protocol */ 1860 b3prot(bchan->l2, bchan->l3), /* B3protocol */ 1861 b1config(bchan->l2, bchan->l3), /* B1configuration */ 1862 NULL, /* B2configuration */ 1863 NULL, /* B3configuration */ 1864 NULL, /* BC */ 1865 NULL, /* LLC */ 1866 NULL, /* HLC */ 1867 /* BChannelinformation */ 1868 isleasedline ? AdditionalInfo : NULL, 1869 NULL, /* Keypadfacility */ 1870 NULL, /* Useruserdata */ 1871 NULL /* Facilitydataarray */ 1872 ); 1873 if ((plcip = new_plci(card, (c->arg % card->nbchan))) == NULL) { 1874 cmd.command = ISDN_STAT_DHUP; 1875 cmd.driver = card->myid; 1876 cmd.arg = (c->arg % card->nbchan); 1877 card->interface.statcallb(&cmd); 1878 return -1; 1879 } 1880 plcip->msgid = cmdcmsg.Messagenumber; 1881 plcip->leasedline = isleasedline; 1882 plci_change_state(card, plcip, EV_PLCI_CONNECT_REQ); 1883 send_message(card, &cmdcmsg); 1884 return 0; 1885 } 1886 1887 case ISDN_CMD_ACCEPTD: 1888 1889 bchan = &card->bchans[c->arg % card->nbchan]; 1890 if (debugmode) 1891 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTD(ch=%ld) l2=%d l3=%d\n", 1892 card->contrnr, 1893 c->arg, bchan->l2, bchan->l3); 1894 1895 capi_fill_CONNECT_RESP(&cmdcmsg, 1896 global.ap.applid, 1897 card->msgid++, 1898 bchan->plcip->plci, /* adr */ 1899 0, /* Reject */ 1900 b1prot(bchan->l2, bchan->l3), /* B1protocol */ 1901 b2prot(bchan->l2, bchan->l3), /* B2protocol */ 1902 b3prot(bchan->l2, bchan->l3), /* B3protocol */ 1903 b1config(bchan->l2, bchan->l3), /* B1configuration */ 1904 NULL, /* B2configuration */ 1905 NULL, /* B3configuration */ 1906 NULL, /* ConnectedNumber */ 1907 NULL, /* ConnectedSubaddress */ 1908 NULL, /* LLC */ 1909 NULL, /* BChannelinformation */ 1910 NULL, /* Keypadfacility */ 1911 NULL, /* Useruserdata */ 1912 NULL /* Facilitydataarray */ 1913 ); 1914 if (capi_cmsg2message(&cmdcmsg, cmdcmsg.buf)) { 1915 printk(KERN_ERR "capidrv-%d: capidrv_command: parser failure\n", 1916 card->contrnr); 1917 return -EINVAL; 1918 } 1919 plci_change_state(card, bchan->plcip, EV_PLCI_CONNECT_RESP); 1920 send_message(card, &cmdcmsg); 1921 return 0; 1922 1923 case ISDN_CMD_ACCEPTB: 1924 if (debugmode) 1925 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTB(ch=%ld)\n", 1926 card->contrnr, 1927 c->arg); 1928 return -ENOSYS; 1929 1930 case ISDN_CMD_HANGUP: 1931 if (debugmode) 1932 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_HANGUP(ch=%ld)\n", 1933 card->contrnr, 1934 c->arg); 1935 bchan = &card->bchans[c->arg % card->nbchan]; 1936 1937 if (bchan->disconnecting) { 1938 if (debugmode) 1939 printk(KERN_DEBUG "capidrv-%d: chan %ld already disconnecting ...\n", 1940 card->contrnr, 1941 c->arg); 1942 return 0; 1943 } 1944 if (bchan->nccip) { 1945 bchan->disconnecting = 1; 1946 capi_fill_DISCONNECT_B3_REQ(&cmdcmsg, 1947 global.ap.applid, 1948 card->msgid++, 1949 bchan->nccip->ncci, 1950 NULL /* NCPI */ 1951 ); 1952 ncci_change_state(card, bchan->nccip, EV_NCCI_DISCONNECT_B3_REQ); 1953 send_message(card, &cmdcmsg); 1954 return 0; 1955 } else if (bchan->plcip) { 1956 if (bchan->plcip->state == ST_PLCI_INCOMING) { 1957 /* 1958 * just ignore, we a called from 1959 * isdn_status_callback(), 1960 * which will return 0 or 2, this is handled 1961 * by the CONNECT_IND handler 1962 */ 1963 bchan->disconnecting = 1; 1964 return 0; 1965 } else if (bchan->plcip->plci) { 1966 bchan->disconnecting = 1; 1967 capi_fill_DISCONNECT_REQ(&cmdcmsg, 1968 global.ap.applid, 1969 card->msgid++, 1970 bchan->plcip->plci, 1971 NULL, /* BChannelinformation */ 1972 NULL, /* Keypadfacility */ 1973 NULL, /* Useruserdata */ 1974 NULL /* Facilitydataarray */ 1975 ); 1976 plci_change_state(card, bchan->plcip, EV_PLCI_DISCONNECT_REQ); 1977 send_message(card, &cmdcmsg); 1978 return 0; 1979 } else { 1980 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request while waiting for CONNECT_CONF\n", 1981 card->contrnr, 1982 c->arg); 1983 return -EINVAL; 1984 } 1985 } 1986 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request on free channel\n", 1987 card->contrnr, 1988 c->arg); 1989 return -EINVAL; 1990/* ready */ 1991 1992 case ISDN_CMD_SETL2: 1993 if (debugmode) 1994 printk(KERN_DEBUG "capidrv-%d: set L2 on chan %ld to %ld\n", 1995 card->contrnr, 1996 (c->arg & 0xff), (c->arg >> 8)); 1997 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan]; 1998 bchan->l2 = (c->arg >> 8); 1999 return 0; 2000 2001 case ISDN_CMD_SETL3: 2002 if (debugmode) 2003 printk(KERN_DEBUG "capidrv-%d: set L3 on chan %ld to %ld\n", 2004 card->contrnr, 2005 (c->arg & 0xff), (c->arg >> 8)); 2006 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan]; 2007 bchan->l3 = (c->arg >> 8); 2008 return 0; 2009 2010 case ISDN_CMD_SETEAZ: 2011 if (debugmode) 2012 printk(KERN_DEBUG "capidrv-%d: set EAZ \"%s\" on chan %ld\n", 2013 card->contrnr, 2014 c->parm.num, c->arg); 2015 bchan = &card->bchans[c->arg % card->nbchan]; 2016 strncpy(bchan->msn, c->parm.num, ISDN_MSNLEN); 2017 return 0; 2018 2019 case ISDN_CMD_CLREAZ: 2020 if (debugmode) 2021 printk(KERN_DEBUG "capidrv-%d: clearing EAZ on chan %ld\n", 2022 card->contrnr, c->arg); 2023 bchan = &card->bchans[c->arg % card->nbchan]; 2024 bchan->msn[0] = 0; 2025 return 0; 2026 2027 default: 2028 printk(KERN_ERR "capidrv-%d: ISDN_CMD_%d, Huh?\n", 2029 card->contrnr, c->command); 2030 return -EINVAL; 2031 } 2032 return 0; 2033} 2034 2035static int if_command(isdn_ctrl *c) 2036{ 2037 capidrv_contr *card = findcontrbydriverid(c->driver); 2038 2039 if (card) 2040 return capidrv_command(c, card); 2041 2042 printk(KERN_ERR 2043 "capidrv: if_command %d called with invalid driverId %d!\n", 2044 c->command, c->driver); 2045 return -ENODEV; 2046} 2047 2048static _cmsg sendcmsg; 2049 2050static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb) 2051{ 2052 capidrv_contr *card = findcontrbydriverid(id); 2053 capidrv_bchan *bchan; 2054 capidrv_ncci *nccip; 2055 int len = skb->len; 2056 int msglen; 2057 u16 errcode; 2058 u16 datahandle; 2059 u32 data; 2060 2061 if (!card) { 2062 printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n", 2063 id); 2064 return 0; 2065 } 2066 if (debugmode > 4) 2067 printk(KERN_DEBUG "capidrv-%d: sendbuf len=%d skb=%p doack=%d\n", 2068 card->contrnr, len, skb, doack); 2069 bchan = &card->bchans[channel % card->nbchan]; 2070 nccip = bchan->nccip; 2071 if (!nccip || nccip->state != ST_NCCI_ACTIVE) { 2072 printk(KERN_ERR "capidrv-%d: if_sendbuf: %s:%d: chan not up!\n", 2073 card->contrnr, card->name, channel); 2074 return 0; 2075 } 2076 datahandle = nccip->datahandle; 2077 2078 /* 2079 * Here we copy pointer skb->data into the 32-bit 'Data' field. 2080 * The 'Data' field is not used in practice in linux kernel 2081 * (neither in 32 or 64 bit), but should have some value, 2082 * since a CAPI message trace will display it. 2083 * 2084 * The correct value in the 32 bit case is the address of the 2085 * data, in 64 bit it makes no sense, we use 0 there. 2086 */ 2087 2088#ifdef CONFIG_64BIT 2089 data = 0; 2090#else 2091 data = (unsigned long) skb->data; 2092#endif 2093 2094 capi_fill_DATA_B3_REQ(&sendcmsg, global.ap.applid, card->msgid++, 2095 nccip->ncci, /* adr */ 2096 data, /* Data */ 2097 skb->len, /* DataLength */ 2098 datahandle, /* DataHandle */ 2099 0 /* Flags */ 2100 ); 2101 2102 if (capidrv_add_ack(nccip, datahandle, doack ? (int)skb->len : -1) < 0) 2103 return 0; 2104 2105 if (capi_cmsg2message(&sendcmsg, sendcmsg.buf)) { 2106 printk(KERN_ERR "capidrv-%d: if_sendbuf: parser failure\n", 2107 card->contrnr); 2108 return -EINVAL; 2109 } 2110 msglen = CAPIMSG_LEN(sendcmsg.buf); 2111 if (skb_headroom(skb) < msglen) { 2112 struct sk_buff *nskb = skb_realloc_headroom(skb, msglen); 2113 if (!nskb) { 2114 printk(KERN_ERR "capidrv-%d: if_sendbuf: no memory\n", 2115 card->contrnr); 2116 (void)capidrv_del_ack(nccip, datahandle); 2117 return 0; 2118 } 2119 printk(KERN_DEBUG "capidrv-%d: only %d bytes headroom, need %d\n", 2120 card->contrnr, skb_headroom(skb), msglen); 2121 memcpy(skb_push(nskb, msglen), sendcmsg.buf, msglen); 2122 errcode = capi20_put_message(&global.ap, nskb); 2123 if (errcode == CAPI_NOERROR) { 2124 dev_kfree_skb(skb); 2125 nccip->datahandle++; 2126 return len; 2127 } 2128 if (debugmode > 3) 2129 printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n", 2130 card->contrnr, errcode, capi_info2str(errcode)); 2131 (void)capidrv_del_ack(nccip, datahandle); 2132 dev_kfree_skb(nskb); 2133 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1; 2134 } else { 2135 memcpy(skb_push(skb, msglen), sendcmsg.buf, msglen); 2136 errcode = capi20_put_message(&global.ap, skb); 2137 if (errcode == CAPI_NOERROR) { 2138 nccip->datahandle++; 2139 return len; 2140 } 2141 if (debugmode > 3) 2142 printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n", 2143 card->contrnr, errcode, capi_info2str(errcode)); 2144 skb_pull(skb, msglen); 2145 (void)capidrv_del_ack(nccip, datahandle); 2146 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1; 2147 } 2148} 2149 2150static int if_readstat(u8 __user *buf, int len, int id, int channel) 2151{ 2152 capidrv_contr *card = findcontrbydriverid(id); 2153 int count; 2154 u8 __user *p; 2155 2156 if (!card) { 2157 printk(KERN_ERR "capidrv: if_readstat called with invalid driverId %d!\n", 2158 id); 2159 return -ENODEV; 2160 } 2161 2162 for (p = buf, count = 0; count < len; p++, count++) { 2163 if (put_user(*card->q931_read++, p)) 2164 return -EFAULT; 2165 if (card->q931_read > card->q931_end) 2166 card->q931_read = card->q931_buf; 2167 } 2168 return count; 2169 2170} 2171 2172static void enable_dchannel_trace(capidrv_contr *card) 2173{ 2174 u8 manufacturer[CAPI_MANUFACTURER_LEN]; 2175 capi_version version; 2176 u16 contr = card->contrnr; 2177 u16 errcode; 2178 u16 avmversion[3]; 2179 2180 errcode = capi20_get_manufacturer(contr, manufacturer); 2181 if (errcode != CAPI_NOERROR) { 2182 printk(KERN_ERR "%s: can't get manufacturer (0x%x)\n", 2183 card->name, errcode); 2184 return; 2185 } 2186 if (strstr(manufacturer, "AVM") == NULL) { 2187 printk(KERN_ERR "%s: not from AVM, no d-channel trace possible (%s)\n", 2188 card->name, manufacturer); 2189 return; 2190 } 2191 errcode = capi20_get_version(contr, &version); 2192 if (errcode != CAPI_NOERROR) { 2193 printk(KERN_ERR "%s: can't get version (0x%x)\n", 2194 card->name, errcode); 2195 return; 2196 } 2197 avmversion[0] = (version.majormanuversion >> 4) & 0x0f; 2198 avmversion[1] = (version.majormanuversion << 4) & 0xf0; 2199 avmversion[1] |= (version.minormanuversion >> 4) & 0x0f; 2200 avmversion[2] |= version.minormanuversion & 0x0f; 2201 2202 if (avmversion[0] > 3 || (avmversion[0] == 3 && avmversion[1] > 5)) { 2203 printk(KERN_INFO "%s: D2 trace enabled\n", card->name); 2204 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid, 2205 card->msgid++, 2206 contr, 2207 0x214D5641, /* ManuID */ 2208 0, /* Class */ 2209 1, /* Function */ 2210 (_cstruct)"\004\200\014\000\000"); 2211 } else { 2212 printk(KERN_INFO "%s: D3 trace enabled\n", card->name); 2213 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid, 2214 card->msgid++, 2215 contr, 2216 0x214D5641, /* ManuID */ 2217 0, /* Class */ 2218 1, /* Function */ 2219 (_cstruct)"\004\002\003\000\000"); 2220 } 2221 send_message(card, &cmdcmsg); 2222} 2223 2224 2225static void send_listen(capidrv_contr *card) 2226{ 2227 capi_fill_LISTEN_REQ(&cmdcmsg, global.ap.applid, 2228 card->msgid++, 2229 card->contrnr, /* controller */ 2230 1 << 6, /* Infomask */ 2231 card->cipmask, 2232 card->cipmask2, 2233 NULL, NULL); 2234 listen_change_state(card, EV_LISTEN_REQ); 2235 send_message(card, &cmdcmsg); 2236} 2237 2238static void listentimerfunc(unsigned long x) 2239{ 2240 capidrv_contr *card = (capidrv_contr *)x; 2241 if (card->state != ST_LISTEN_NONE && card->state != ST_LISTEN_ACTIVE) 2242 printk(KERN_ERR "%s: controller dead ??\n", card->name); 2243 send_listen(card); 2244 mod_timer(&card->listentimer, jiffies + 60 * HZ); 2245} 2246 2247 2248static int capidrv_addcontr(u16 contr, struct capi_profile *profp) 2249{ 2250 capidrv_contr *card; 2251 unsigned long flags; 2252 isdn_ctrl cmd; 2253 char id[20]; 2254 int i; 2255 2256 sprintf(id, "capidrv-%d", contr); 2257 if (!try_module_get(THIS_MODULE)) { 2258 printk(KERN_WARNING "capidrv: (%s) Could not reserve module\n", id); 2259 return -1; 2260 } 2261 if (!(card = kzalloc(sizeof(capidrv_contr), GFP_ATOMIC))) { 2262 printk(KERN_WARNING 2263 "capidrv: (%s) Could not allocate contr-struct.\n", id); 2264 return -1; 2265 } 2266 card->owner = THIS_MODULE; 2267 init_timer(&card->listentimer); 2268 strcpy(card->name, id); 2269 card->contrnr = contr; 2270 card->nbchan = profp->nbchannel; 2271 card->bchans = kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC); 2272 if (!card->bchans) { 2273 printk(KERN_WARNING 2274 "capidrv: (%s) Could not allocate bchan-structs.\n", id); 2275 module_put(card->owner); 2276 kfree(card); 2277 return -1; 2278 } 2279 card->interface.channels = profp->nbchannel; 2280 card->interface.maxbufsize = 2048; 2281 card->interface.command = if_command; 2282 card->interface.writebuf_skb = if_sendbuf; 2283 card->interface.writecmd = NULL; 2284 card->interface.readstat = if_readstat; 2285 card->interface.features = 2286 ISDN_FEATURE_L2_HDLC | 2287 ISDN_FEATURE_L2_TRANS | 2288 ISDN_FEATURE_L3_TRANS | 2289 ISDN_FEATURE_P_UNKNOWN | 2290 ISDN_FEATURE_L2_X75I | 2291 ISDN_FEATURE_L2_X75UI | 2292 ISDN_FEATURE_L2_X75BUI; 2293 if (profp->support1 & (1 << 2)) 2294 card->interface.features |= 2295 ISDN_FEATURE_L2_V11096 | 2296 ISDN_FEATURE_L2_V11019 | 2297 ISDN_FEATURE_L2_V11038; 2298 if (profp->support1 & (1 << 8)) 2299 card->interface.features |= ISDN_FEATURE_L2_MODEM; 2300 card->interface.hl_hdrlen = 22; /* len of DATA_B3_REQ */ 2301 strncpy(card->interface.id, id, sizeof(card->interface.id) - 1); 2302 2303 2304 card->q931_read = card->q931_buf; 2305 card->q931_write = card->q931_buf; 2306 card->q931_end = card->q931_buf + sizeof(card->q931_buf) - 1; 2307 2308 if (!register_isdn(&card->interface)) { 2309 printk(KERN_ERR "capidrv: Unable to register contr %s\n", id); 2310 kfree(card->bchans); 2311 module_put(card->owner); 2312 kfree(card); 2313 return -1; 2314 } 2315 card->myid = card->interface.channels; 2316 memset(card->bchans, 0, sizeof(capidrv_bchan) * card->nbchan); 2317 for (i = 0; i < card->nbchan; i++) { 2318 card->bchans[i].contr = card; 2319 } 2320 2321 spin_lock_irqsave(&global_lock, flags); 2322 card->next = global.contr_list; 2323 global.contr_list = card; 2324 global.ncontr++; 2325 spin_unlock_irqrestore(&global_lock, flags); 2326 2327 cmd.command = ISDN_STAT_RUN; 2328 cmd.driver = card->myid; 2329 card->interface.statcallb(&cmd); 2330 2331 card->cipmask = 0x1FFF03FF; /* any */ 2332 card->cipmask2 = 0; 2333 2334 card->listentimer.data = (unsigned long)card; 2335 card->listentimer.function = listentimerfunc; 2336 send_listen(card); 2337 mod_timer(&card->listentimer, jiffies + 60 * HZ); 2338 2339 printk(KERN_INFO "%s: now up (%d B channels)\n", 2340 card->name, card->nbchan); 2341 2342 enable_dchannel_trace(card); 2343 2344 return 0; 2345} 2346 2347static int capidrv_delcontr(u16 contr) 2348{ 2349 capidrv_contr **pp, *card; 2350 unsigned long flags; 2351 isdn_ctrl cmd; 2352 2353 spin_lock_irqsave(&global_lock, flags); 2354 for (card = global.contr_list; card; card = card->next) { 2355 if (card->contrnr == contr) 2356 break; 2357 } 2358 if (!card) { 2359 spin_unlock_irqrestore(&global_lock, flags); 2360 printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr); 2361 return -1; 2362 } 2363 2364 /* FIXME: maybe a race condition the card should be removed 2365 * here from global list /kkeil 2366 */ 2367 spin_unlock_irqrestore(&global_lock, flags); 2368 2369 del_timer(&card->listentimer); 2370 2371 if (debugmode) 2372 printk(KERN_DEBUG "capidrv-%d: id=%d unloading\n", 2373 card->contrnr, card->myid); 2374 2375 cmd.command = ISDN_STAT_STOP; 2376 cmd.driver = card->myid; 2377 card->interface.statcallb(&cmd); 2378 2379 while (card->nbchan) { 2380 2381 cmd.command = ISDN_STAT_DISCH; 2382 cmd.driver = card->myid; 2383 cmd.arg = card->nbchan - 1; 2384 cmd.parm.num[0] = 0; 2385 if (debugmode) 2386 printk(KERN_DEBUG "capidrv-%d: id=%d disable chan=%ld\n", 2387 card->contrnr, card->myid, cmd.arg); 2388 card->interface.statcallb(&cmd); 2389 2390 if (card->bchans[card->nbchan - 1].nccip) 2391 free_ncci(card, card->bchans[card->nbchan - 1].nccip); 2392 if (card->bchans[card->nbchan - 1].plcip) 2393 free_plci(card, card->bchans[card->nbchan - 1].plcip); 2394 if (card->plci_list) 2395 printk(KERN_ERR "capidrv: bug in free_plci()\n"); 2396 card->nbchan--; 2397 } 2398 kfree(card->bchans); 2399 card->bchans = NULL; 2400 2401 if (debugmode) 2402 printk(KERN_DEBUG "capidrv-%d: id=%d isdn unload\n", 2403 card->contrnr, card->myid); 2404 2405 cmd.command = ISDN_STAT_UNLOAD; 2406 cmd.driver = card->myid; 2407 card->interface.statcallb(&cmd); 2408 2409 if (debugmode) 2410 printk(KERN_DEBUG "capidrv-%d: id=%d remove contr from list\n", 2411 card->contrnr, card->myid); 2412 2413 spin_lock_irqsave(&global_lock, flags); 2414 for (pp = &global.contr_list; *pp; pp = &(*pp)->next) { 2415 if (*pp == card) { 2416 *pp = (*pp)->next; 2417 card->next = NULL; 2418 global.ncontr--; 2419 break; 2420 } 2421 } 2422 spin_unlock_irqrestore(&global_lock, flags); 2423 2424 module_put(card->owner); 2425 printk(KERN_INFO "%s: now down.\n", card->name); 2426 kfree(card); 2427 return 0; 2428} 2429 2430 2431static int 2432lower_callback(struct notifier_block *nb, unsigned long val, void *v) 2433{ 2434 capi_profile profile; 2435 u32 contr = (long)v; 2436 2437 switch (val) { 2438 case CAPICTR_UP: 2439 printk(KERN_INFO "capidrv: controller %hu up\n", contr); 2440 if (capi20_get_profile(contr, &profile) == CAPI_NOERROR) 2441 (void) capidrv_addcontr(contr, &profile); 2442 break; 2443 case CAPICTR_DOWN: 2444 printk(KERN_INFO "capidrv: controller %hu down\n", contr); 2445 (void) capidrv_delcontr(contr); 2446 break; 2447 } 2448 return NOTIFY_OK; 2449} 2450 2451/* 2452 * /proc/capi/capidrv: 2453 * nrecvctlpkt nrecvdatapkt nsendctlpkt nsenddatapkt 2454 */ 2455static int capidrv_proc_show(struct seq_file *m, void *v) 2456{ 2457 seq_printf(m, "%lu %lu %lu %lu\n", 2458 global.ap.nrecvctlpkt, 2459 global.ap.nrecvdatapkt, 2460 global.ap.nsentctlpkt, 2461 global.ap.nsentdatapkt); 2462 return 0; 2463} 2464 2465static int capidrv_proc_open(struct inode *inode, struct file *file) 2466{ 2467 return single_open(file, capidrv_proc_show, NULL); 2468} 2469 2470static const struct file_operations capidrv_proc_fops = { 2471 .owner = THIS_MODULE, 2472 .open = capidrv_proc_open, 2473 .read = seq_read, 2474 .llseek = seq_lseek, 2475 .release = single_release, 2476}; 2477 2478static void __init proc_init(void) 2479{ 2480 proc_create("capi/capidrv", 0, NULL, &capidrv_proc_fops); 2481} 2482 2483static void __exit proc_exit(void) 2484{ 2485 remove_proc_entry("capi/capidrv", NULL); 2486} 2487 2488static struct notifier_block capictr_nb = { 2489 .notifier_call = lower_callback, 2490}; 2491 2492static int __init capidrv_init(void) 2493{ 2494 capi_profile profile; 2495 u32 ncontr, contr; 2496 u16 errcode; 2497 2498 global.ap.rparam.level3cnt = -2; /* number of bchannels twice */ 2499 global.ap.rparam.datablkcnt = 16; 2500 global.ap.rparam.datablklen = 2048; 2501 2502 global.ap.recv_message = capidrv_recv_message; 2503 errcode = capi20_register(&global.ap); 2504 if (errcode) { 2505 return -EIO; 2506 } 2507 2508 register_capictr_notifier(&capictr_nb); 2509 2510 errcode = capi20_get_profile(0, &profile); 2511 if (errcode != CAPI_NOERROR) { 2512 unregister_capictr_notifier(&capictr_nb); 2513 capi20_release(&global.ap); 2514 return -EIO; 2515 } 2516 2517 ncontr = profile.ncontroller; 2518 for (contr = 1; contr <= ncontr; contr++) { 2519 errcode = capi20_get_profile(contr, &profile); 2520 if (errcode != CAPI_NOERROR) 2521 continue; 2522 (void) capidrv_addcontr(contr, &profile); 2523 } 2524 proc_init(); 2525 2526 return 0; 2527} 2528 2529static void __exit capidrv_exit(void) 2530{ 2531 unregister_capictr_notifier(&capictr_nb); 2532 capi20_release(&global.ap); 2533 2534 proc_exit(); 2535} 2536 2537module_init(capidrv_init); 2538module_exit(capidrv_exit); 2539