git.oblomov.eu Git - linux-2.6/blob - drivers/isdn/hysdn/hycapi.c

   1 /* $Id: hycapi.c,v 1.8.6.4 2001/09/23 22:24:54 kai Exp $
   2  *
   3  * Linux driver for HYSDN cards, CAPI2.0-Interface.
   4  *
   5  * Author    Ulrich Albrecht <u.albrecht@hypercope.de> for Hypercope GmbH
   6  * Copyright 2000 by Hypercope GmbH
   7  *
   8  * This software may be used and distributed according to the terms
   9  * of the GNU General Public License, incorporated herein by reference.
  10  *
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/signal.h>
  15 #include <linux/kernel.h>
  16 #include <linux/skbuff.h>
  17 #include <linux/netdevice.h>
  18
  19 #define VER_DRIVER      0
  20 #define VER_CARDTYPE    1
  21 #define VER_HWID        2
  22 #define VER_SERIAL      3
  23 #define VER_OPTION      4
  24 #define VER_PROTO       5
  25 #define VER_PROFILE     6
  26 #define VER_CAPI        7
  27
  28 #include "hysdn_defs.h"
  29 #include <linux/kernelcapi.h>
  30
  31 static char hycapi_revision[]="$Revision: 1.8.6.4 $";
  32
  33 unsigned int hycapi_enable = 0xffffffff;
  34 module_param(hycapi_enable, uint, 0);
  35
  36 typedef struct _hycapi_appl {
  37         unsigned int ctrl_mask;
  38         capi_register_params rp;
  39         struct sk_buff *listen_req[CAPI_MAXCONTR];
  40 } hycapi_appl;
  41
  42 static hycapi_appl hycapi_applications[CAPI_MAXAPPL];
  43
  44 static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
  45
  46 static inline int _hycapi_appCheck(int app_id, int ctrl_no)
  47 {
  48         if((ctrl_no <= 0) || (ctrl_no > CAPI_MAXCONTR) || (app_id <= 0) ||
  49            (app_id > CAPI_MAXAPPL))
  50         {
  51                 printk(KERN_ERR "HYCAPI: Invalid request app_id %d for controller %d", app_id, ctrl_no);
  52                 return -1;
  53         }
  54         return ((hycapi_applications[app_id-1].ctrl_mask & (1 << (ctrl_no-1))) != 0);
  55 }
  56
  57 /******************************
  58 Kernel-Capi callback reset_ctr
  59 ******************************/
  60
  61 static void
  62 hycapi_reset_ctr(struct capi_ctr *ctrl)
  63 {
  64         hycapictrl_info *cinfo = ctrl->driverdata;
  65
  66 #ifdef HYCAPI_PRINTFNAMES
  67         printk(KERN_NOTICE "HYCAPI hycapi_reset_ctr\n");
  68 #endif
  69         capilib_release(&cinfo->ncci_head);
  70         capi_ctr_down(ctrl);
  71 }
  72
  73 /******************************
  74 Kernel-Capi callback remove_ctr
  75 ******************************/
  76
  77 static void
  78 hycapi_remove_ctr(struct capi_ctr *ctrl)
  79 {
  80         int i;
  81         hycapictrl_info *cinfo = NULL;
  82         hysdn_card *card = NULL;
  83 #ifdef HYCAPI_PRINTFNAMES
  84         printk(KERN_NOTICE "HYCAPI hycapi_remove_ctr\n");
  85 #endif
  86         cinfo = (hycapictrl_info *)(ctrl->driverdata);
  87         if(!cinfo) {
  88                 printk(KERN_ERR "No hycapictrl_info set!");
  89                 return;
  90         }
  91         card = cinfo->card;
  92         capi_ctr_suspend_output(ctrl);
  93         for(i=0; i<CAPI_MAXAPPL;i++) {
  94                 if(hycapi_applications[i].listen_req[ctrl->cnr-1]) {
  95                         kfree_skb(hycapi_applications[i].listen_req[ctrl->cnr-1]);
  96                         hycapi_applications[i].listen_req[ctrl->cnr-1] = NULL;
  97                 }
  98         }
  99         detach_capi_ctr(ctrl);
 100         ctrl->driverdata = NULL;
 101         kfree(card->hyctrlinfo);
 102
 103
 104         card->hyctrlinfo = NULL;
 105 }
 106
 107 /***********************************************************
 108
 109 Queue a CAPI-message to the controller.
 110
 111 ***********************************************************/
 112
 113 static void
 114 hycapi_sendmsg_internal(struct capi_ctr *ctrl, struct sk_buff *skb)
 115 {
 116         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 117         hysdn_card *card = cinfo->card;
 118
 119         spin_lock_irq(&cinfo->lock);
 120 #ifdef HYCAPI_PRINTFNAMES
 121         printk(KERN_NOTICE "hycapi_send_message\n");
 122 #endif
 123         cinfo->skbs[cinfo->in_idx++] = skb;     /* add to buffer list */
 124         if (cinfo->in_idx >= HYSDN_MAX_CAPI_SKB)
 125                 cinfo->in_idx = 0;      /* wrap around */
 126         cinfo->sk_count++;              /* adjust counter */
 127         if (cinfo->sk_count >= HYSDN_MAX_CAPI_SKB) {
 128                 /* inform upper layers we're full */
 129                 printk(KERN_ERR "HYSDN Card%d: CAPI-buffer overrun!\n",
 130                        card->myid);
 131                 capi_ctr_suspend_output(ctrl);
 132         }
 133         cinfo->tx_skb = skb;
 134         spin_unlock_irq(&cinfo->lock);
 135         schedule_work(&card->irq_queue);
 136 }
 137
 138 /***********************************************************
 139 hycapi_register_internal
 140
 141 Send down the CAPI_REGISTER-Command to the controller.
 142 This functions will also be used if the adapter has been rebooted to
 143 re-register any applications in the private list.
 144
 145 ************************************************************/
 146
 147 static void
 148 hycapi_register_internal(struct capi_ctr *ctrl, __u16 appl,
 149                          capi_register_params *rp)
 150 {
 151         char ExtFeatureDefaults[] = "49  /0/0/0/0,*/1,*/2,*/3,*/4,*/5,*/6,*/7,*/8,*/9,*";
 152         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 153         hysdn_card *card = cinfo->card;
 154         struct sk_buff *skb;
 155         __u16 len;
 156         __u8 _command = 0xa0, _subcommand = 0x80;
 157         __u16 MessageNumber = 0x0000;
 158         __u16 MessageBufferSize = 0;
 159         int slen = strlen(ExtFeatureDefaults);
 160 #ifdef HYCAPI_PRINTFNAMES
 161         printk(KERN_NOTICE "hycapi_register_appl\n");
 162 #endif
 163         MessageBufferSize = rp->level3cnt * rp->datablkcnt * rp->datablklen;
 164
 165         len = CAPI_MSG_BASELEN + 8 + slen + 1;
 166         if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
 167                 printk(KERN_ERR "HYSDN card%d: memory squeeze in hycapi_register_appl\n",
 168                        card->myid);
 169                 return;
 170         }
 171         memcpy(skb_put(skb,sizeof(__u16)), &len, sizeof(__u16));
 172         memcpy(skb_put(skb,sizeof(__u16)), &appl, sizeof(__u16));
 173         memcpy(skb_put(skb,sizeof(__u8)), &_command, sizeof(_command));
 174         memcpy(skb_put(skb,sizeof(__u8)), &_subcommand, sizeof(_subcommand));
 175         memcpy(skb_put(skb,sizeof(__u16)), &MessageNumber, sizeof(__u16));
 176         memcpy(skb_put(skb,sizeof(__u16)), &MessageBufferSize, sizeof(__u16));
 177         memcpy(skb_put(skb,sizeof(__u16)), &(rp->level3cnt), sizeof(__u16));
 178         memcpy(skb_put(skb,sizeof(__u16)), &(rp->datablkcnt), sizeof(__u16));
 179         memcpy(skb_put(skb,sizeof(__u16)), &(rp->datablklen), sizeof(__u16));
 180         memcpy(skb_put(skb,slen), ExtFeatureDefaults, slen);
 181         hycapi_applications[appl-1].ctrl_mask |= (1 << (ctrl->cnr-1));
 182         hycapi_send_message(ctrl, skb);
 183 }
 184
 185 /************************************************************
 186 hycapi_restart_internal
 187
 188 After an adapter has been rebootet, re-register all applications and
 189 send a LISTEN_REQ (if there has been such a thing )
 190
 191 *************************************************************/
 192
 193 static void hycapi_restart_internal(struct capi_ctr *ctrl)
 194 {
 195         int i;
 196         struct sk_buff *skb;
 197 #ifdef HYCAPI_PRINTFNAMES
 198         printk(KERN_WARNING "HYSDN: hycapi_restart_internal");
 199 #endif
 200         for(i=0; i<CAPI_MAXAPPL; i++) {
 201                 if(_hycapi_appCheck(i+1, ctrl->cnr) == 1) {
 202                         hycapi_register_internal(ctrl, i+1,
 203                                                  &hycapi_applications[i].rp);
 204                         if(hycapi_applications[i].listen_req[ctrl->cnr-1]) {
 205                                 skb = skb_copy(hycapi_applications[i].listen_req[ctrl->cnr-1], GFP_ATOMIC);
 206                                 hycapi_sendmsg_internal(ctrl, skb);
 207                         }
 208                 }
 209         }
 210 }
 211
 212 /*************************************************************
 213 Register an application.
 214 Error-checking is done for CAPI-compliance.
 215
 216 The application is recorded in the internal list.
 217 *************************************************************/
 218
 219 static void
 220 hycapi_register_appl(struct capi_ctr *ctrl, __u16 appl,
 221                      capi_register_params *rp)
 222 {
 223         int MaxLogicalConnections = 0, MaxBDataBlocks = 0, MaxBDataLen = 0;
 224         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 225         hysdn_card *card = cinfo->card;
 226         int chk = _hycapi_appCheck(appl, ctrl->cnr);
 227         if(chk < 0) {
 228                 return;
 229         }
 230         if(chk == 1) {
 231                 printk(KERN_INFO "HYSDN: apl %d already registered\n", appl);
 232                 return;
 233         }
 234         MaxBDataBlocks = rp->datablkcnt > CAPI_MAXDATAWINDOW ? CAPI_MAXDATAWINDOW : rp->datablkcnt;
 235         rp->datablkcnt = MaxBDataBlocks;
 236         MaxBDataLen = rp->datablklen < 1024 ? 1024 : rp->datablklen ;
 237         rp->datablklen = MaxBDataLen;
 238
 239         MaxLogicalConnections = rp->level3cnt;
 240         if (MaxLogicalConnections < 0) {
 241                 MaxLogicalConnections = card->bchans * -MaxLogicalConnections;
 242         }
 243         if (MaxLogicalConnections == 0) {
 244                 MaxLogicalConnections = card->bchans;
 245         }
 246
 247         rp->level3cnt = MaxLogicalConnections;
 248         memcpy(&hycapi_applications[appl-1].rp,
 249                rp, sizeof(capi_register_params));
 250 }
 251
 252 /*********************************************************************
 253
 254 hycapi_release_internal
 255
 256 Send down a CAPI_RELEASE to the controller.
 257 *********************************************************************/
 258
 259 static void hycapi_release_internal(struct capi_ctr *ctrl, __u16 appl)
 260 {
 261         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 262         hysdn_card *card = cinfo->card;
 263         struct sk_buff *skb;
 264         __u16 len;
 265         __u8 _command = 0xa1, _subcommand = 0x80;
 266         __u16 MessageNumber = 0x0000;
 267
 268         capilib_release_appl(&cinfo->ncci_head, appl);
 269
 270 #ifdef HYCAPI_PRINTFNAMES
 271         printk(KERN_NOTICE "hycapi_release_appl\n");
 272 #endif
 273         len = CAPI_MSG_BASELEN;
 274         if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
 275                 printk(KERN_ERR "HYSDN card%d: memory squeeze in hycapi_register_appl\n",
 276                        card->myid);
 277                 return;
 278         }
 279         memcpy(skb_put(skb,sizeof(__u16)), &len, sizeof(__u16));
 280         memcpy(skb_put(skb,sizeof(__u16)), &appl, sizeof(__u16));
 281         memcpy(skb_put(skb,sizeof(__u8)), &_command, sizeof(_command));
 282         memcpy(skb_put(skb,sizeof(__u8)), &_subcommand, sizeof(_subcommand));
 283         memcpy(skb_put(skb,sizeof(__u16)), &MessageNumber, sizeof(__u16));
 284         hycapi_send_message(ctrl, skb);
 285         hycapi_applications[appl-1].ctrl_mask &= ~(1 << (ctrl->cnr-1));
 286 }
 287
 288 /******************************************************************
 289 hycapi_release_appl
 290
 291 Release the application from the internal list an remove it's
 292 registration at controller-level
 293 ******************************************************************/
 294
 295 static void
 296 hycapi_release_appl(struct capi_ctr *ctrl, __u16 appl)
 297 {
 298         int chk;
 299
 300         chk = _hycapi_appCheck(appl, ctrl->cnr);
 301         if(chk<0) {
 302                 printk(KERN_ERR "HYCAPI: Releasing invalid appl %d on controller %d\n", appl, ctrl->cnr);
 303                 return;
 304         }
 305         if(hycapi_applications[appl-1].listen_req[ctrl->cnr-1]) {
 306                 kfree_skb(hycapi_applications[appl-1].listen_req[ctrl->cnr-1]);
 307                 hycapi_applications[appl-1].listen_req[ctrl->cnr-1] = NULL;
 308         }
 309         if(chk == 1)
 310         {
 311                 hycapi_release_internal(ctrl, appl);
 312         }
 313 }
 314
 315
 316 /**************************************************************
 317 Kill a single controller.
 318 **************************************************************/
 319
 320 int hycapi_capi_release(hysdn_card *card)
 321 {
 322         hycapictrl_info *cinfo = card->hyctrlinfo;
 323         struct capi_ctr *ctrl;
 324 #ifdef HYCAPI_PRINTFNAMES
 325         printk(KERN_NOTICE "hycapi_capi_release\n");
 326 #endif
 327         if(cinfo) {
 328                 ctrl = &cinfo->capi_ctrl;
 329                 hycapi_remove_ctr(ctrl);
 330         }
 331         return 0;
 332 }
 333
 334 /**************************************************************
 335 hycapi_capi_stop
 336
 337 Stop CAPI-Output on a card. (e.g. during reboot)
 338 ***************************************************************/
 339
 340 int hycapi_capi_stop(hysdn_card *card)
 341 {
 342         hycapictrl_info *cinfo = card->hyctrlinfo;
 343         struct capi_ctr *ctrl;
 344 #ifdef HYCAPI_PRINTFNAMES
 345         printk(KERN_NOTICE "hycapi_capi_stop\n");
 346 #endif
 347         if(cinfo) {
 348                 ctrl = &cinfo->capi_ctrl;
 349 /*              ctrl->suspend_output(ctrl); */
 350                 capi_ctr_down(ctrl);
 351         }
 352         return 0;
 353 }
 354
 355 /***************************************************************
 356 hycapi_send_message
 357
 358 Send a message to the controller.
 359
 360 Messages are parsed for their Command/Subcommand-type, and appropriate
 361 action's are performed.
 362
 363 Note that we have to muck around with a 64Bit-DATA_REQ as there are
 364 firmware-releases that do not check the MsgLen-Indication!
 365
 366 ***************************************************************/
 367
 368 static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
 369 {
 370         __u16 appl_id;
 371         int _len, _len2;
 372         __u8 msghead[64];
 373         hycapictrl_info *cinfo = ctrl->driverdata;
 374         u16 retval = CAPI_NOERROR;
 375
 376         appl_id = CAPIMSG_APPID(skb->data);
 377         switch(_hycapi_appCheck(appl_id, ctrl->cnr))
 378         {
 379                 case 0:
 380 /*                      printk(KERN_INFO "Need to register\n"); */
 381                         hycapi_register_internal(ctrl,
 382                                                  appl_id,
 383                                                  &(hycapi_applications[appl_id-1].rp));
 384                         break;
 385                 case 1:
 386                         break;
 387                 default:
 388                         printk(KERN_ERR "HYCAPI: Controller mixup!\n");
 389                         retval = CAPI_ILLAPPNR;
 390                         goto out;
 391         }
 392         switch(CAPIMSG_CMD(skb->data)) {
 393                 case CAPI_DISCONNECT_B3_RESP:
 394                         capilib_free_ncci(&cinfo->ncci_head, appl_id,
 395                                           CAPIMSG_NCCI(skb->data));
 396                         break;
 397                 case CAPI_DATA_B3_REQ:
 398                         _len = CAPIMSG_LEN(skb->data);
 399                         if (_len > 22) {
 400                                 _len2 = _len - 22;
 401                                 skb_copy_from_linear_data(skb, msghead, 22);
 402                                 skb_copy_to_linear_data_offset(skb, _len2,
 403                                                                msghead, 22);
 404                                 skb_pull(skb, _len2);
 405                                 CAPIMSG_SETLEN(skb->data, 22);
 406                                 retval = capilib_data_b3_req(&cinfo->ncci_head,
 407                                                              CAPIMSG_APPID(skb->data),
 408                                                              CAPIMSG_NCCI(skb->data),
 409                                                              CAPIMSG_MSGID(skb->data));
 410                         }
 411                         break;
 412                 case CAPI_LISTEN_REQ:
 413                         if(hycapi_applications[appl_id-1].listen_req[ctrl->cnr-1])
 414                         {
 415                                 kfree_skb(hycapi_applications[appl_id-1].listen_req[ctrl->cnr-1]);
 416                                 hycapi_applications[appl_id-1].listen_req[ctrl->cnr-1] = NULL;
 417                         }
 418                         if (!(hycapi_applications[appl_id-1].listen_req[ctrl->cnr-1] = skb_copy(skb, GFP_ATOMIC)))
 419                         {
 420                                 printk(KERN_ERR "HYSDN: memory squeeze in private_listen\n");
 421                         }
 422                         break;
 423                 default:
 424                         break;
 425         }
 426  out:
 427         if (retval == CAPI_NOERROR)
 428                 hycapi_sendmsg_internal(ctrl, skb);
 429         else
 430                 dev_kfree_skb_any(skb);
 431
 432         return retval;
 433 }
 434
 435 /*********************************************************************
 436 hycapi_read_proc
 437
 438 Informations provided in the /proc/capi-entries.
 439
 440 *********************************************************************/
 441
 442 static int hycapi_read_proc(char *page, char **start, off_t off,
 443                             int count, int *eof, struct capi_ctr *ctrl)
 444 {
 445         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 446         hysdn_card *card = cinfo->card;
 447         int len = 0;
 448         char *s;
 449 #ifdef HYCAPI_PRINTFNAMES
 450         printk(KERN_NOTICE "hycapi_read_proc\n");
 451 #endif
 452         len += sprintf(page+len, "%-16s %s\n", "name", cinfo->cardname);
 453         len += sprintf(page+len, "%-16s 0x%x\n", "io", card->iobase);
 454         len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
 455
 456         switch (card->brdtype) {
 457                 case BD_PCCARD:  s = "HYSDN Hycard"; break;
 458                 case BD_ERGO: s = "HYSDN Ergo2"; break;
 459                 case BD_METRO: s = "HYSDN Metro4"; break;
 460                 case BD_CHAMP2: s = "HYSDN Champ2";     break;
 461                 case BD_PLEXUS: s = "HYSDN Plexus30"; break;
 462                 default: s = "???"; break;
 463         }
 464         len += sprintf(page+len, "%-16s %s\n", "type", s);
 465         if ((s = cinfo->version[VER_DRIVER]) != NULL)
 466                 len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
 467         if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
 468                 len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
 469         if ((s = cinfo->version[VER_SERIAL]) != NULL)
 470                 len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
 471
 472         len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
 473
 474         if (off+count >= len)
 475                 *eof = 1;
 476         if (len < off)
 477                 return 0;
 478         *start = page + off;
 479         return ((count < len-off) ? count : len-off);
 480 }
 481
 482 /**************************************************************
 483 hycapi_load_firmware
 484
 485 This does NOT load any firmware, but the callback somehow is needed
 486 on capi-interface registration.
 487
 488 **************************************************************/
 489
 490 static int hycapi_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
 491 {
 492 #ifdef HYCAPI_PRINTFNAMES
 493         printk(KERN_NOTICE "hycapi_load_firmware\n");
 494 #endif
 495         return 0;
 496 }
 497
 498
 499 static char *hycapi_procinfo(struct capi_ctr *ctrl)
 500 {
 501         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 502 #ifdef HYCAPI_PRINTFNAMES
 503         printk(KERN_NOTICE "hycapi_proc_info\n");
 504 #endif
 505         if (!cinfo)
 506                 return "";
 507         sprintf(cinfo->infobuf, "%s %s 0x%x %d %s",
 508                 cinfo->cardname[0] ? cinfo->cardname : "-",
 509                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
 510                 cinfo->card ? cinfo->card->iobase : 0x0,
 511                 cinfo->card ? cinfo->card->irq : 0,
 512                 hycapi_revision
 513                 );
 514         return cinfo->infobuf;
 515 }
 516
 517 /******************************************************************
 518 hycapi_rx_capipkt
 519
 520 Receive a capi-message.
 521
 522 All B3_DATA_IND are converted to 64K-extension compatible format.
 523 New nccis are created if necessary.
 524 *******************************************************************/
 525
 526 void
 527 hycapi_rx_capipkt(hysdn_card * card, unsigned char *buf, unsigned short len)
 528 {
 529         struct sk_buff *skb;
 530         hycapictrl_info *cinfo = card->hyctrlinfo;
 531         struct capi_ctr *ctrl;
 532         __u16 ApplId;
 533         __u16 MsgLen, info;
 534         __u16 len2, CapiCmd;
 535         __u32 CP64[2] = {0,0};
 536 #ifdef HYCAPI_PRINTFNAMES
 537         printk(KERN_NOTICE "hycapi_rx_capipkt\n");
 538 #endif
 539         if(!cinfo) {
 540                 return;
 541         }
 542         ctrl = &cinfo->capi_ctrl;
 543         if(len < CAPI_MSG_BASELEN) {
 544                 printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, length %d!\n",
 545                        card->myid, len);
 546                 return;
 547         }
 548         MsgLen = CAPIMSG_LEN(buf);
 549         ApplId = CAPIMSG_APPID(buf);
 550         CapiCmd = CAPIMSG_CMD(buf);
 551
 552         if((CapiCmd == CAPI_DATA_B3_IND) && (MsgLen < 30)) {
 553                 len2 = len + (30 - MsgLen);
 554                 if (!(skb = alloc_skb(len2, GFP_ATOMIC))) {
 555                         printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
 556                                card->myid);
 557                         return;
 558                 }
 559                 memcpy(skb_put(skb, MsgLen), buf, MsgLen);
 560                 memcpy(skb_put(skb, 2*sizeof(__u32)), CP64, 2* sizeof(__u32));
 561                 memcpy(skb_put(skb, len - MsgLen), buf + MsgLen,
 562                        len - MsgLen);
 563                 CAPIMSG_SETLEN(skb->data, 30);
 564         } else {
 565                 if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
 566                         printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
 567                                card->myid);
 568                         return;
 569                 }
 570                 memcpy(skb_put(skb, len), buf, len);
 571         }
 572         switch(CAPIMSG_CMD(skb->data))
 573         {
 574                 case CAPI_CONNECT_B3_CONF:
 575 /* Check info-field for error-indication: */
 576                         info = CAPIMSG_U16(skb->data, 12);
 577                         switch(info)
 578                         {
 579                                 case 0:
 580                                         capilib_new_ncci(&cinfo->ncci_head, ApplId, CAPIMSG_NCCI(skb->data),
 581                                                          hycapi_applications[ApplId-1].rp.datablkcnt);
 582
 583                                         break;
 584                                 case 0x0001:
 585                                         printk(KERN_ERR "HYSDN Card%d: NCPI not supported by current "
 586                                                "protocol. NCPI ignored.\n", card->myid);
 587                                         break;
 588                                 case 0x2001:
 589                                         printk(KERN_ERR "HYSDN Card%d: Message not supported in"
 590                                                " current state\n", card->myid);
 591                                         break;
 592                                 case 0x2002:
 593                                         printk(KERN_ERR "HYSDN Card%d: invalid PLCI\n", card->myid);
 594                                         break;
 595                                 case 0x2004:
 596                                         printk(KERN_ERR "HYSDN Card%d: out of NCCI\n", card->myid);
 597                                         break;
 598                                 case 0x3008:
 599                                         printk(KERN_ERR "HYSDN Card%d: NCPI not supported\n",
 600                                                card->myid);
 601                                         break;
 602                                 default:
 603                                         printk(KERN_ERR "HYSDN Card%d: Info in CONNECT_B3_CONF: %d\n",
 604                                                card->myid, info);
 605                                         break;
 606                         }
 607                         break;
 608                 case CAPI_CONNECT_B3_IND:
 609                         capilib_new_ncci(&cinfo->ncci_head, ApplId,
 610                                          CAPIMSG_NCCI(skb->data),
 611                                          hycapi_applications[ApplId-1].rp.datablkcnt);
 612                         break;
 613                 case CAPI_DATA_B3_CONF:
 614                         capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
 615                                              CAPIMSG_NCCI(skb->data),
 616                                              CAPIMSG_MSGID(skb->data));
 617                         break;
 618                 default:
 619                         break;
 620         }
 621         capi_ctr_handle_message(ctrl, ApplId, skb);
 622 }
 623
 624 /******************************************************************
 625 hycapi_tx_capiack
 626
 627 Internally acknowledge a msg sent. This will remove the msg from the
 628 internal queue.
 629
 630 *******************************************************************/
 631
 632 void hycapi_tx_capiack(hysdn_card * card)
 633 {
 634         hycapictrl_info *cinfo = card->hyctrlinfo;
 635 #ifdef HYCAPI_PRINTFNAMES
 636         printk(KERN_NOTICE "hycapi_tx_capiack\n");
 637 #endif
 638         if(!cinfo) {
 639                 return;
 640         }
 641         spin_lock_irq(&cinfo->lock);
 642         kfree_skb(cinfo->skbs[cinfo->out_idx]);         /* free skb */
 643         cinfo->skbs[cinfo->out_idx++] = NULL;
 644         if (cinfo->out_idx >= HYSDN_MAX_CAPI_SKB)
 645                 cinfo->out_idx = 0;     /* wrap around */
 646
 647         if (cinfo->sk_count-- == HYSDN_MAX_CAPI_SKB)    /* dec usage count */
 648                 capi_ctr_resume_output(&cinfo->capi_ctrl);
 649         spin_unlock_irq(&cinfo->lock);
 650 }
 651
 652 /***************************************************************
 653 hycapi_tx_capiget(hysdn_card *card)
 654
 655 This is called when polling for messages to SEND.
 656
 657 ****************************************************************/
 658
 659 struct sk_buff *
 660 hycapi_tx_capiget(hysdn_card *card)
 661 {
 662         hycapictrl_info *cinfo = card->hyctrlinfo;
 663         if(!cinfo) {
 664                 return (struct sk_buff *)NULL;
 665         }
 666         if (!cinfo->sk_count)
 667                 return (struct sk_buff *)NULL;  /* nothing available */
 668
 669         return (cinfo->skbs[cinfo->out_idx]);           /* next packet to send */
 670 }
 671
 672
 673 /**********************************************************
 674 int hycapi_init()
 675
 676 attach the capi-driver to the kernel-capi.
 677
 678 ***********************************************************/
 679
 680 int hycapi_init(void)
 681 {
 682         int i;
 683         for(i=0;i<CAPI_MAXAPPL;i++) {
 684                 memset(&(hycapi_applications[i]), 0, sizeof(hycapi_appl));
 685         }
 686         return(0);
 687 }
 688
 689 /**************************************************************
 690 hycapi_cleanup(void)
 691
 692 detach the capi-driver to the kernel-capi. Actually this should
 693 free some more ressources. Do that later.
 694 **************************************************************/
 695
 696 void
 697 hycapi_cleanup(void)
 698 {
 699 }
 700
 701 /********************************************************************
 702 hycapi_capi_create(hysdn_card *card)
 703
 704 Attach the card with its capi-ctrl.
 705 *********************************************************************/
 706
 707 static void hycapi_fill_profile(hysdn_card *card)
 708 {
 709         hycapictrl_info *cinfo = NULL;
 710         struct capi_ctr *ctrl = NULL;
 711         cinfo = card->hyctrlinfo;
 712         if(!cinfo) return;
 713         ctrl = &cinfo->capi_ctrl;
 714         strcpy(ctrl->manu, "Hypercope");
 715         ctrl->version.majorversion = 2;
 716         ctrl->version.minorversion = 0;
 717         ctrl->version.majormanuversion = 3;
 718         ctrl->version.minormanuversion = 2;
 719         ctrl->profile.ncontroller = card->myid;
 720         ctrl->profile.nbchannel = card->bchans;
 721         ctrl->profile.goptions = GLOBAL_OPTION_INTERNAL_CONTROLLER |
 722                 GLOBAL_OPTION_B_CHANNEL_OPERATION;
 723         ctrl->profile.support1 =  B1_PROT_64KBIT_HDLC |
 724                 (card->faxchans ? B1_PROT_T30 : 0) |
 725                 B1_PROT_64KBIT_TRANSPARENT;
 726         ctrl->profile.support2 = B2_PROT_ISO7776 |
 727                 (card->faxchans ? B2_PROT_T30 : 0) |
 728                 B2_PROT_TRANSPARENT;
 729         ctrl->profile.support3 = B3_PROT_TRANSPARENT |
 730                 B3_PROT_T90NL |
 731                 (card->faxchans ? B3_PROT_T30 : 0) |
 732                 (card->faxchans ? B3_PROT_T30EXT : 0) |
 733                 B3_PROT_ISO8208;
 734 }
 735
 736 int
 737 hycapi_capi_create(hysdn_card *card)
 738 {
 739         hycapictrl_info *cinfo = NULL;
 740         struct capi_ctr *ctrl = NULL;
 741         int retval;
 742 #ifdef HYCAPI_PRINTFNAMES
 743         printk(KERN_NOTICE "hycapi_capi_create\n");
 744 #endif
 745         if((hycapi_enable & (1 << card->myid)) == 0) {
 746                 return 1;
 747         }
 748         if (!card->hyctrlinfo) {
 749                 cinfo = kzalloc(sizeof(hycapictrl_info), GFP_ATOMIC);
 750                 if (!cinfo) {
 751                         printk(KERN_WARNING "HYSDN: no memory for capi-ctrl.\n");
 752                         return -ENOMEM;
 753                 }
 754                 card->hyctrlinfo = cinfo;
 755                 cinfo->card = card;
 756                 spin_lock_init(&cinfo->lock);
 757                 INIT_LIST_HEAD(&cinfo->ncci_head);
 758
 759                 switch (card->brdtype) {
 760                         case BD_PCCARD:  strcpy(cinfo->cardname,"HYSDN Hycard"); break;
 761                         case BD_ERGO: strcpy(cinfo->cardname,"HYSDN Ergo2"); break;
 762                         case BD_METRO: strcpy(cinfo->cardname,"HYSDN Metro4"); break;
 763                         case BD_CHAMP2: strcpy(cinfo->cardname,"HYSDN Champ2"); break;
 764                         case BD_PLEXUS: strcpy(cinfo->cardname,"HYSDN Plexus30"); break;
 765                         default: strcpy(cinfo->cardname,"HYSDN ???"); break;
 766                 }
 767
 768                 ctrl = &cinfo->capi_ctrl;
 769                 ctrl->driver_name   = "hycapi";
 770                 ctrl->driverdata    = cinfo;
 771                 ctrl->register_appl = hycapi_register_appl;
 772                 ctrl->release_appl  = hycapi_release_appl;
 773                 ctrl->send_message  = hycapi_send_message;
 774                 ctrl->load_firmware = hycapi_load_firmware;
 775                 ctrl->reset_ctr     = hycapi_reset_ctr;
 776                 ctrl->procinfo      = hycapi_procinfo;
 777                 ctrl->ctr_read_proc = hycapi_read_proc;
 778                 strcpy(ctrl->name, cinfo->cardname);
 779                 ctrl->owner = THIS_MODULE;
 780
 781                 retval = attach_capi_ctr(ctrl);
 782                 if (retval) {
 783                         printk(KERN_ERR "hycapi: attach controller failed.\n");
 784                         return -EBUSY;
 785                 }
 786                 /* fill in the blanks: */
 787                 hycapi_fill_profile(card);
 788                 capi_ctr_ready(ctrl);
 789         } else {
 790                 /* resume output on stopped ctrl */
 791                 ctrl = &card->hyctrlinfo->capi_ctrl;
 792                 hycapi_fill_profile(card);
 793                 capi_ctr_ready(ctrl);
 794                 hycapi_restart_internal(ctrl);
 795 /*              ctrl->resume_output(ctrl); */
 796         }
 797         return 0;
 798 }