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/proc_fs.h>
  15 #include <linux/seq_file.h>
  16 #include <linux/signal.h>
  17 #include <linux/kernel.h>
  18 #include <linux/skbuff.h>
  19 #include <linux/netdevice.h>
  20 #include <linux/slab.h>
  21
  22 #define VER_DRIVER      0
  23 #define VER_CARDTYPE    1
  24 #define VER_HWID        2
  25 #define VER_SERIAL      3
  26 #define VER_OPTION      4
  27 #define VER_PROTO       5
  28 #define VER_PROFILE     6
  29 #define VER_CAPI        7
  30
  31 #include "hysdn_defs.h"
  32 #include <linux/kernelcapi.h>
  33
  34 static char hycapi_revision[] = "$Revision: 1.8.6.4 $";
  35
  36 unsigned int hycapi_enable = 0xffffffff;
  37 module_param(hycapi_enable, uint, 0);
  38
  39 typedef struct _hycapi_appl {
  40         unsigned int ctrl_mask;
  41         capi_register_params rp;
  42         struct sk_buff *listen_req[CAPI_MAXCONTR];
  43 } hycapi_appl;
  44
  45 static hycapi_appl hycapi_applications[CAPI_MAXAPPL];
  46
  47 static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
  48
  49 static inline int _hycapi_appCheck(int app_id, int ctrl_no)
  50 {
  51         if ((ctrl_no <= 0) || (ctrl_no > CAPI_MAXCONTR) || (app_id <= 0) ||
  52            (app_id > CAPI_MAXAPPL))
  53         {
  54                 printk(KERN_ERR "HYCAPI: Invalid request app_id %d for controller %d", app_id, ctrl_no);
  55                 return -1;
  56         }
  57         return ((hycapi_applications[app_id - 1].ctrl_mask & (1 << (ctrl_no-1))) != 0);
  58 }
  59
  60 /******************************
  61 Kernel-Capi callback reset_ctr
  62 ******************************/
  63
  64 static void
  65 hycapi_reset_ctr(struct capi_ctr *ctrl)
  66 {
  67         hycapictrl_info *cinfo = ctrl->driverdata;
  68
  69 #ifdef HYCAPI_PRINTFNAMES
  70         printk(KERN_NOTICE "HYCAPI hycapi_reset_ctr\n");
  71 #endif
  72         capilib_release(&cinfo->ncci_head);
  73         capi_ctr_down(ctrl);
  74 }
  75
  76 /******************************
  77 Kernel-Capi callback remove_ctr
  78 ******************************/
  79
  80 static void
  81 hycapi_remove_ctr(struct capi_ctr *ctrl)
  82 {
  83         int i;
  84         hycapictrl_info *cinfo = NULL;
  85         hysdn_card *card = NULL;
  86 #ifdef HYCAPI_PRINTFNAMES
  87         printk(KERN_NOTICE "HYCAPI hycapi_remove_ctr\n");
  88 #endif
  89         cinfo = (hycapictrl_info *)(ctrl->driverdata);
  90         if (!cinfo) {
  91                 printk(KERN_ERR "No hycapictrl_info set!");
  92                 return;
  93         }
  94         card = cinfo->card;
  95         capi_ctr_suspend_output(ctrl);
  96         for (i = 0; i < CAPI_MAXAPPL; i++) {
  97                 if (hycapi_applications[i].listen_req[ctrl->cnr - 1]) {
  98                         kfree_skb(hycapi_applications[i].listen_req[ctrl->cnr - 1]);
  99                         hycapi_applications[i].listen_req[ctrl->cnr - 1] = NULL;
 100                 }
 101         }
 102         detach_capi_ctr(ctrl);
 103         ctrl->driverdata = NULL;
 104         kfree(card->hyctrlinfo);
 105
 106
 107         card->hyctrlinfo = NULL;
 108 }
 109
 110 /***********************************************************
 111
 112 Queue a CAPI-message to the controller.
 113
 114 ***********************************************************/
 115
 116 static void
 117 hycapi_sendmsg_internal(struct capi_ctr *ctrl, struct sk_buff *skb)
 118 {
 119         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 120         hysdn_card *card = cinfo->card;
 121
 122         spin_lock_irq(&cinfo->lock);
 123 #ifdef HYCAPI_PRINTFNAMES
 124         printk(KERN_NOTICE "hycapi_send_message\n");
 125 #endif
 126         cinfo->skbs[cinfo->in_idx++] = skb;     /* add to buffer list */
 127         if (cinfo->in_idx >= HYSDN_MAX_CAPI_SKB)
 128                 cinfo->in_idx = 0;      /* wrap around */
 129         cinfo->sk_count++;              /* adjust counter */
 130         if (cinfo->sk_count >= HYSDN_MAX_CAPI_SKB) {
 131                 /* inform upper layers we're full */
 132                 printk(KERN_ERR "HYSDN Card%d: CAPI-buffer overrun!\n",
 133                        card->myid);
 134                 capi_ctr_suspend_output(ctrl);
 135         }
 136         cinfo->tx_skb = skb;
 137         spin_unlock_irq(&cinfo->lock);
 138         schedule_work(&card->irq_queue);
 139 }
 140
 141 /***********************************************************
 142 hycapi_register_internal
 143
 144 Send down the CAPI_REGISTER-Command to the controller.
 145 This functions will also be used if the adapter has been rebooted to
 146 re-register any applications in the private list.
 147
 148 ************************************************************/
 149
 150 static void
 151 hycapi_register_internal(struct capi_ctr *ctrl, __u16 appl,
 152                          capi_register_params *rp)
 153 {
 154         char ExtFeatureDefaults[] = "49  /0/0/0/0,*/1,*/2,*/3,*/4,*/5,*/6,*/7,*/8,*/9,*";
 155         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 156         hysdn_card *card = cinfo->card;
 157         struct sk_buff *skb;
 158         __u16 len;
 159         __u8 _command = 0xa0, _subcommand = 0x80;
 160         __u16 MessageNumber = 0x0000;
 161         __u16 MessageBufferSize = 0;
 162         int slen = strlen(ExtFeatureDefaults);
 163 #ifdef HYCAPI_PRINTFNAMES
 164         printk(KERN_NOTICE "hycapi_register_appl\n");
 165 #endif
 166         MessageBufferSize = rp->level3cnt * rp->datablkcnt * rp->datablklen;
 167
 168         len = CAPI_MSG_BASELEN + 8 + slen + 1;
 169         if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
 170                 printk(KERN_ERR "HYSDN card%d: memory squeeze in hycapi_register_appl\n",
 171                        card->myid);
 172                 return;
 173         }
 174         memcpy(skb_put(skb, sizeof(__u16)), &len, sizeof(__u16));
 175         memcpy(skb_put(skb, sizeof(__u16)), &appl, sizeof(__u16));
 176         memcpy(skb_put(skb, sizeof(__u8)), &_command, sizeof(_command));
 177         memcpy(skb_put(skb, sizeof(__u8)), &_subcommand, sizeof(_subcommand));
 178         memcpy(skb_put(skb, sizeof(__u16)), &MessageNumber, sizeof(__u16));
 179         memcpy(skb_put(skb, sizeof(__u16)), &MessageBufferSize, sizeof(__u16));
 180         memcpy(skb_put(skb, sizeof(__u16)), &(rp->level3cnt), sizeof(__u16));
 181         memcpy(skb_put(skb, sizeof(__u16)), &(rp->datablkcnt), sizeof(__u16));
 182         memcpy(skb_put(skb, sizeof(__u16)), &(rp->datablklen), sizeof(__u16));
 183         memcpy(skb_put(skb, slen), ExtFeatureDefaults, slen);
 184         hycapi_applications[appl - 1].ctrl_mask |= (1 << (ctrl->cnr - 1));
 185         hycapi_send_message(ctrl, skb);
 186 }
 187
 188 /************************************************************
 189 hycapi_restart_internal
 190
 191 After an adapter has been rebootet, re-register all applications and
 192 send a LISTEN_REQ (if there has been such a thing )
 193
 194 *************************************************************/
 195
 196 static void hycapi_restart_internal(struct capi_ctr *ctrl)
 197 {
 198         int i;
 199         struct sk_buff *skb;
 200 #ifdef HYCAPI_PRINTFNAMES
 201         printk(KERN_WARNING "HYSDN: hycapi_restart_internal");
 202 #endif
 203         for (i = 0; i < CAPI_MAXAPPL; i++) {
 204                 if (_hycapi_appCheck(i + 1, ctrl->cnr) == 1) {
 205                         hycapi_register_internal(ctrl, i + 1,
 206                                                  &hycapi_applications[i].rp);
 207                         if (hycapi_applications[i].listen_req[ctrl->cnr - 1]) {
 208                                 skb = skb_copy(hycapi_applications[i].listen_req[ctrl->cnr - 1], GFP_ATOMIC);
 209                                 hycapi_sendmsg_internal(ctrl, skb);
 210                         }
 211                 }
 212         }
 213 }
 214
 215 /*************************************************************
 216 Register an application.
 217 Error-checking is done for CAPI-compliance.
 218
 219 The application is recorded in the internal list.
 220 *************************************************************/
 221
 222 static void
 223 hycapi_register_appl(struct capi_ctr *ctrl, __u16 appl,
 224                      capi_register_params *rp)
 225 {
 226         int MaxLogicalConnections = 0, MaxBDataBlocks = 0, MaxBDataLen = 0;
 227         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 228         hysdn_card *card = cinfo->card;
 229         int chk = _hycapi_appCheck(appl, ctrl->cnr);
 230         if (chk < 0) {
 231                 return;
 232         }
 233         if (chk == 1) {
 234                 printk(KERN_INFO "HYSDN: apl %d already registered\n", appl);
 235                 return;
 236         }
 237         MaxBDataBlocks = rp->datablkcnt > CAPI_MAXDATAWINDOW ? CAPI_MAXDATAWINDOW : rp->datablkcnt;
 238         rp->datablkcnt = MaxBDataBlocks;
 239         MaxBDataLen = rp->datablklen < 1024 ? 1024 : rp->datablklen;
 240         rp->datablklen = MaxBDataLen;
 241
 242         MaxLogicalConnections = rp->level3cnt;
 243         if (MaxLogicalConnections < 0) {
 244                 MaxLogicalConnections = card->bchans * -MaxLogicalConnections;
 245         }
 246         if (MaxLogicalConnections == 0) {
 247                 MaxLogicalConnections = card->bchans;
 248         }
 249
 250         rp->level3cnt = MaxLogicalConnections;
 251         memcpy(&hycapi_applications[appl - 1].rp,
 252                rp, sizeof(capi_register_params));
 253 }
 254
 255 /*********************************************************************
 256
 257 hycapi_release_internal
 258
 259 Send down a CAPI_RELEASE to the controller.
 260 *********************************************************************/
 261
 262 static void hycapi_release_internal(struct capi_ctr *ctrl, __u16 appl)
 263 {
 264         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 265         hysdn_card *card = cinfo->card;
 266         struct sk_buff *skb;
 267         __u16 len;
 268         __u8 _command = 0xa1, _subcommand = 0x80;
 269         __u16 MessageNumber = 0x0000;
 270
 271         capilib_release_appl(&cinfo->ncci_head, appl);
 272
 273 #ifdef HYCAPI_PRINTFNAMES
 274         printk(KERN_NOTICE "hycapi_release_appl\n");
 275 #endif
 276         len = CAPI_MSG_BASELEN;
 277         if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
 278                 printk(KERN_ERR "HYSDN card%d: memory squeeze in hycapi_register_appl\n",
 279                        card->myid);
 280                 return;
 281         }
 282         memcpy(skb_put(skb, sizeof(__u16)), &len, sizeof(__u16));
 283         memcpy(skb_put(skb, sizeof(__u16)), &appl, sizeof(__u16));
 284         memcpy(skb_put(skb, sizeof(__u8)), &_command, sizeof(_command));
 285         memcpy(skb_put(skb, sizeof(__u8)), &_subcommand, sizeof(_subcommand));
 286         memcpy(skb_put(skb, sizeof(__u16)), &MessageNumber, sizeof(__u16));
 287         hycapi_send_message(ctrl, skb);
 288         hycapi_applications[appl - 1].ctrl_mask &= ~(1 << (ctrl->cnr - 1));
 289 }
 290
 291 /******************************************************************
 292 hycapi_release_appl
 293
 294 Release the application from the internal list an remove it's
 295 registration at controller-level
 296 ******************************************************************/
 297
 298 static void
 299 hycapi_release_appl(struct capi_ctr *ctrl, __u16 appl)
 300 {
 301         int chk;
 302
 303         chk = _hycapi_appCheck(appl, ctrl->cnr);
 304         if (chk < 0) {
 305                 printk(KERN_ERR "HYCAPI: Releasing invalid appl %d on controller %d\n", appl, ctrl->cnr);
 306                 return;
 307         }
 308         if (hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1]) {
 309                 kfree_skb(hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1]);
 310                 hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1] = NULL;
 311         }
 312         if (chk == 1)
 313         {
 314                 hycapi_release_internal(ctrl, appl);
 315         }
 316 }
 317
 318
 319 /**************************************************************
 320 Kill a single controller.
 321 **************************************************************/
 322
 323 int hycapi_capi_release(hysdn_card *card)
 324 {
 325         hycapictrl_info *cinfo = card->hyctrlinfo;
 326         struct capi_ctr *ctrl;
 327 #ifdef HYCAPI_PRINTFNAMES
 328         printk(KERN_NOTICE "hycapi_capi_release\n");
 329 #endif
 330         if (cinfo) {
 331                 ctrl = &cinfo->capi_ctrl;
 332                 hycapi_remove_ctr(ctrl);
 333         }
 334         return 0;
 335 }
 336
 337 /**************************************************************
 338 hycapi_capi_stop
 339
 340 Stop CAPI-Output on a card. (e.g. during reboot)
 341 ***************************************************************/
 342
 343 int hycapi_capi_stop(hysdn_card *card)
 344 {
 345         hycapictrl_info *cinfo = card->hyctrlinfo;
 346         struct capi_ctr *ctrl;
 347 #ifdef HYCAPI_PRINTFNAMES
 348         printk(KERN_NOTICE "hycapi_capi_stop\n");
 349 #endif
 350         if (cinfo) {
 351                 ctrl = &cinfo->capi_ctrl;
 352 /*              ctrl->suspend_output(ctrl); */
 353                 capi_ctr_down(ctrl);
 354         }
 355         return 0;
 356 }
 357
 358 /***************************************************************
 359 hycapi_send_message
 360
 361 Send a message to the controller.
 362
 363 Messages are parsed for their Command/Subcommand-type, and appropriate
 364 action's are performed.
 365
 366 Note that we have to muck around with a 64Bit-DATA_REQ as there are
 367 firmware-releases that do not check the MsgLen-Indication!
 368
 369 ***************************************************************/
 370
 371 static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
 372 {
 373         __u16 appl_id;
 374         int _len, _len2;
 375         __u8 msghead[64];
 376         hycapictrl_info *cinfo = ctrl->driverdata;
 377         u16 retval = CAPI_NOERROR;
 378
 379         appl_id = CAPIMSG_APPID(skb->data);
 380         switch (_hycapi_appCheck(appl_id, ctrl->cnr))
 381         {
 382         case 0:
 383 /*                      printk(KERN_INFO "Need to register\n"); */
 384                 hycapi_register_internal(ctrl,
 385                                          appl_id,
 386                                          &(hycapi_applications[appl_id - 1].rp));
 387                 break;
 388         case 1:
 389                 break;
 390         default:
 391                 printk(KERN_ERR "HYCAPI: Controller mixup!\n");
 392                 retval = CAPI_ILLAPPNR;
 393                 goto out;
 394         }
 395         switch (CAPIMSG_CMD(skb->data)) {
 396         case CAPI_DISCONNECT_B3_RESP:
 397                 capilib_free_ncci(&cinfo->ncci_head, appl_id,
 398                                   CAPIMSG_NCCI(skb->data));
 399                 break;
 400         case CAPI_DATA_B3_REQ:
 401                 _len = CAPIMSG_LEN(skb->data);
 402                 if (_len > 22) {
 403                         _len2 = _len - 22;
 404                         skb_copy_from_linear_data(skb, msghead, 22);
 405                         skb_copy_to_linear_data_offset(skb, _len2,
 406                                                        msghead, 22);
 407                         skb_pull(skb, _len2);
 408                         CAPIMSG_SETLEN(skb->data, 22);
 409                         retval = capilib_data_b3_req(&cinfo->ncci_head,
 410                                                      CAPIMSG_APPID(skb->data),
 411                                                      CAPIMSG_NCCI(skb->data),
 412                                                      CAPIMSG_MSGID(skb->data));
 413                 }
 414                 break;
 415         case CAPI_LISTEN_REQ:
 416                 if (hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1])
 417                 {
 418                         kfree_skb(hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1]);
 419                         hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1] = NULL;
 420                 }
 421                 if (!(hycapi_applications[appl_id  -1].listen_req[ctrl->cnr - 1] = skb_copy(skb, GFP_ATOMIC)))
 422                 {
 423                         printk(KERN_ERR "HYSDN: memory squeeze in private_listen\n");
 424                 }
 425                 break;
 426         default:
 427                 break;
 428         }
 429 out:
 430         if (retval == CAPI_NOERROR)
 431                 hycapi_sendmsg_internal(ctrl, skb);
 432         else
 433                 dev_kfree_skb_any(skb);
 434
 435         return retval;
 436 }
 437
 438 static int hycapi_proc_show(struct seq_file *m, void *v)
 439 {
 440         struct capi_ctr *ctrl = m->private;
 441         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 442         hysdn_card *card = cinfo->card;
 443         char *s;
 444
 445         seq_printf(m, "%-16s %s\n", "name", cinfo->cardname);
 446         seq_printf(m, "%-16s 0x%x\n", "io", card->iobase);
 447         seq_printf(m, "%-16s %d\n", "irq", card->irq);
 448
 449         switch (card->brdtype) {
 450         case BD_PCCARD:  s = "HYSDN Hycard"; break;
 451         case BD_ERGO: s = "HYSDN Ergo2"; break;
 452         case BD_METRO: s = "HYSDN Metro4"; break;
 453         case BD_CHAMP2: s = "HYSDN Champ2";     break;
 454         case BD_PLEXUS: s = "HYSDN Plexus30"; break;
 455         default: s = "???"; break;
 456         }
 457         seq_printf(m, "%-16s %s\n", "type", s);
 458         if ((s = cinfo->version[VER_DRIVER]) != NULL)
 459                 seq_printf(m, "%-16s %s\n", "ver_driver", s);
 460         if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
 461                 seq_printf(m, "%-16s %s\n", "ver_cardtype", s);
 462         if ((s = cinfo->version[VER_SERIAL]) != NULL)
 463                 seq_printf(m, "%-16s %s\n", "ver_serial", s);
 464
 465         seq_printf(m, "%-16s %s\n", "cardname", cinfo->cardname);
 466
 467         return 0;
 468 }
 469
 470 static int hycapi_proc_open(struct inode *inode, struct file *file)
 471 {
 472         return single_open(file, hycapi_proc_show, PDE_DATA(inode));
 473 }
 474
 475 static const struct file_operations hycapi_proc_fops = {
 476         .owner          = THIS_MODULE,
 477         .open           = hycapi_proc_open,
 478         .read           = seq_read,
 479         .llseek         = seq_lseek,
 480         .release        = single_release,
 481 };
 482
 483 /**************************************************************
 484 hycapi_load_firmware
 485
 486 This does NOT load any firmware, but the callback somehow is needed
 487 on capi-interface registration.
 488
 489 **************************************************************/
 490
 491 static int hycapi_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
 492 {
 493 #ifdef HYCAPI_PRINTFNAMES
 494         printk(KERN_NOTICE "hycapi_load_firmware\n");
 495 #endif
 496         return 0;
 497 }
 498
 499
 500 static char *hycapi_procinfo(struct capi_ctr *ctrl)
 501 {
 502         hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
 503 #ifdef HYCAPI_PRINTFNAMES
 504         printk(KERN_NOTICE "hycapi_proc_info\n");
 505 #endif
 506         if (!cinfo)
 507                 return "";
 508         sprintf(cinfo->infobuf, "%s %s 0x%x %d %s",
 509                 cinfo->cardname[0] ? cinfo->cardname : "-",
 510                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
 511                 cinfo->card ? cinfo->card->iobase : 0x0,
 512                 cinfo->card ? cinfo->card->irq : 0,
 513                 hycapi_revision
 514                 );
 515         return cinfo->infobuf;
 516 }
 517
 518 /******************************************************************
 519 hycapi_rx_capipkt
 520
 521 Receive a capi-message.
 522
 523 All B3_DATA_IND are converted to 64K-extension compatible format.
 524 New nccis are created if necessary.
 525 *******************************************************************/
 526
 527 void
 528 hycapi_rx_capipkt(hysdn_card *card, unsigned char *buf, unsigned short len)
 529 {
 530         struct sk_buff *skb;
 531         hycapictrl_info *cinfo = card->hyctrlinfo;
 532         struct capi_ctr *ctrl;
 533         __u16 ApplId;
 534         __u16 MsgLen, info;
 535         __u16 len2, CapiCmd;
 536         __u32 CP64[2] = {0, 0};
 537 #ifdef HYCAPI_PRINTFNAMES
 538         printk(KERN_NOTICE "hycapi_rx_capipkt\n");
 539 #endif
 540         if (!cinfo) {
 541                 return;
 542         }
 543         ctrl = &cinfo->capi_ctrl;
 544         if (len < CAPI_MSG_BASELEN) {
 545                 printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, length %d!\n",
 546                        card->myid, len);
 547                 return;
 548         }
 549         MsgLen = CAPIMSG_LEN(buf);
 550         ApplId = CAPIMSG_APPID(buf);
 551         CapiCmd = CAPIMSG_CMD(buf);
 552
 553         if ((CapiCmd == CAPI_DATA_B3_IND) && (MsgLen < 30)) {
 554                 len2 = len + (30 - MsgLen);
 555                 if (!(skb = alloc_skb(len2, GFP_ATOMIC))) {
 556                         printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
 557                                card->myid);
 558                         return;
 559                 }
 560                 memcpy(skb_put(skb, MsgLen), buf, MsgLen);
 561                 memcpy(skb_put(skb, 2 * sizeof(__u32)), CP64, 2 * sizeof(__u32));
 562                 memcpy(skb_put(skb, len - MsgLen), buf + MsgLen,
 563                        len - MsgLen);
 564                 CAPIMSG_SETLEN(skb->data, 30);
 565         } else {
 566                 if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
 567                         printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
 568                                card->myid);
 569                         return;
 570                 }
 571                 memcpy(skb_put(skb, len), buf, len);
 572         }
 573         switch (CAPIMSG_CMD(skb->data))
 574         {
 575         case CAPI_CONNECT_B3_CONF:
 576 /* Check info-field for error-indication: */
 577                 info = CAPIMSG_U16(skb->data, 12);
 578                 switch (info)
 579                 {
 580                 case 0:
 581                         capilib_new_ncci(&cinfo->ncci_head, ApplId, CAPIMSG_NCCI(skb->data),
 582                                          hycapi_applications[ApplId - 1].rp.datablkcnt);
 583
 584                         break;
 585                 case 0x0001:
 586                         printk(KERN_ERR "HYSDN Card%d: NCPI not supported by current "
 587                                "protocol. NCPI ignored.\n", card->myid);
 588                         break;
 589                 case 0x2001:
 590                         printk(KERN_ERR "HYSDN Card%d: Message not supported in"
 591                                " current state\n", card->myid);
 592                         break;
 593                 case 0x2002:
 594                         printk(KERN_ERR "HYSDN Card%d: invalid PLCI\n", card->myid);
 595                         break;
 596                 case 0x2004:
 597                         printk(KERN_ERR "HYSDN Card%d: out of NCCI\n", card->myid);
 598                         break;
 599                 case 0x3008:
 600                         printk(KERN_ERR "HYSDN Card%d: NCPI not supported\n",
 601                                card->myid);
 602                         break;
 603                 default:
 604                         printk(KERN_ERR "HYSDN Card%d: Info in CONNECT_B3_CONF: %d\n",
 605                                card->myid, info);
 606                         break;
 607                 }
 608                 break;
 609         case CAPI_CONNECT_B3_IND:
 610                 capilib_new_ncci(&cinfo->ncci_head, ApplId,
 611                                  CAPIMSG_NCCI(skb->data),
 612                                  hycapi_applications[ApplId - 1].rp.datablkcnt);
 613                 break;
 614         case CAPI_DATA_B3_CONF:
 615                 capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
 616                                      CAPIMSG_NCCI(skb->data),
 617                                      CAPIMSG_MSGID(skb->data));
 618                 break;
 619         default:
 620                 break;
 621         }
 622         capi_ctr_handle_message(ctrl, ApplId, skb);
 623 }
 624
 625 /******************************************************************
 626 hycapi_tx_capiack
 627
 628 Internally acknowledge a msg sent. This will remove the msg from the
 629 internal queue.
 630
 631 *******************************************************************/
 632
 633 void hycapi_tx_capiack(hysdn_card *card)
 634 {
 635         hycapictrl_info *cinfo = card->hyctrlinfo;
 636 #ifdef HYCAPI_PRINTFNAMES
 637         printk(KERN_NOTICE "hycapi_tx_capiack\n");
 638 #endif
 639         if (!cinfo) {
 640                 return;
 641         }
 642         spin_lock_irq(&cinfo->lock);
 643         kfree_skb(cinfo->skbs[cinfo->out_idx]);         /* free skb */
 644         cinfo->skbs[cinfo->out_idx++] = NULL;
 645         if (cinfo->out_idx >= HYSDN_MAX_CAPI_SKB)
 646                 cinfo->out_idx = 0;     /* wrap around */
 647
 648         if (cinfo->sk_count-- == HYSDN_MAX_CAPI_SKB)    /* dec usage count */
 649                 capi_ctr_resume_output(&cinfo->capi_ctrl);
 650         spin_unlock_irq(&cinfo->lock);
 651 }
 652
 653 /***************************************************************
 654 hycapi_tx_capiget(hysdn_card *card)
 655
 656 This is called when polling for messages to SEND.
 657
 658 ****************************************************************/
 659
 660 struct sk_buff *
 661 hycapi_tx_capiget(hysdn_card *card)
 662 {
 663         hycapictrl_info *cinfo = card->hyctrlinfo;
 664         if (!cinfo) {
 665                 return (struct sk_buff *)NULL;
 666         }
 667         if (!cinfo->sk_count)
 668                 return (struct sk_buff *)NULL;  /* nothing available */
 669
 670         return (cinfo->skbs[cinfo->out_idx]);           /* next packet to send */
 671 }
 672
 673
 674 /**********************************************************
 675 int hycapi_init()
 676
 677 attach the capi-driver to the kernel-capi.
 678
 679 ***********************************************************/
 680
 681 int hycapi_init(void)
 682 {
 683         int i;
 684         for (i = 0; i < CAPI_MAXAPPL; i++) {
 685                 memset(&(hycapi_applications[i]), 0, sizeof(hycapi_appl));
 686         }
 687         return (0);
 688 }
 689
 690 /**************************************************************
 691 hycapi_cleanup(void)
 692
 693 detach the capi-driver to the kernel-capi. Actually this should
 694 free some more ressources. Do that later.
 695 **************************************************************/
 696
 697 void
 698 hycapi_cleanup(void)
 699 {
 700 }
 701
 702 /********************************************************************
 703 hycapi_capi_create(hysdn_card *card)
 704
 705 Attach the card with its capi-ctrl.
 706 *********************************************************************/
 707
 708 static void hycapi_fill_profile(hysdn_card *card)
 709 {
 710         hycapictrl_info *cinfo = NULL;
 711         struct capi_ctr *ctrl = NULL;
 712         cinfo = card->hyctrlinfo;
 713         if (!cinfo) return;
 714         ctrl = &cinfo->capi_ctrl;
 715         strcpy(ctrl->manu, "Hypercope");
 716         ctrl->version.majorversion = 2;
 717         ctrl->version.minorversion = 0;
 718         ctrl->version.majormanuversion = 3;
 719         ctrl->version.minormanuversion = 2;
 720         ctrl->profile.ncontroller = card->myid;
 721         ctrl->profile.nbchannel = card->bchans;
 722         ctrl->profile.goptions = GLOBAL_OPTION_INTERNAL_CONTROLLER |
 723                 GLOBAL_OPTION_B_CHANNEL_OPERATION;
 724         ctrl->profile.support1 =  B1_PROT_64KBIT_HDLC |
 725                 (card->faxchans ? B1_PROT_T30 : 0) |
 726                 B1_PROT_64KBIT_TRANSPARENT;
 727         ctrl->profile.support2 = B2_PROT_ISO7776 |
 728                 (card->faxchans ? B2_PROT_T30 : 0) |
 729                 B2_PROT_TRANSPARENT;
 730         ctrl->profile.support3 = B3_PROT_TRANSPARENT |
 731                 B3_PROT_T90NL |
 732                 (card->faxchans ? B3_PROT_T30 : 0) |
 733                 (card->faxchans ? B3_PROT_T30EXT : 0) |
 734                 B3_PROT_ISO8208;
 735 }
 736
 737 int
 738 hycapi_capi_create(hysdn_card *card)
 739 {
 740         hycapictrl_info *cinfo = NULL;
 741         struct capi_ctr *ctrl = NULL;
 742         int retval;
 743 #ifdef HYCAPI_PRINTFNAMES
 744         printk(KERN_NOTICE "hycapi_capi_create\n");
 745 #endif
 746         if ((hycapi_enable & (1 << card->myid)) == 0) {
 747                 return 1;
 748         }
 749         if (!card->hyctrlinfo) {
 750                 cinfo = kzalloc(sizeof(hycapictrl_info), GFP_ATOMIC);
 751                 if (!cinfo) {
 752                         printk(KERN_WARNING "HYSDN: no memory for capi-ctrl.\n");
 753                         return -ENOMEM;
 754                 }
 755                 card->hyctrlinfo = cinfo;
 756                 cinfo->card = card;
 757                 spin_lock_init(&cinfo->lock);
 758                 INIT_LIST_HEAD(&cinfo->ncci_head);
 759
 760                 switch (card->brdtype) {
 761                 case BD_PCCARD:  strcpy(cinfo->cardname, "HYSDN Hycard"); break;
 762                 case BD_ERGO: strcpy(cinfo->cardname, "HYSDN Ergo2"); break;
 763                 case BD_METRO: strcpy(cinfo->cardname, "HYSDN Metro4"); break;
 764                 case BD_CHAMP2: strcpy(cinfo->cardname, "HYSDN Champ2"); break;
 765                 case BD_PLEXUS: strcpy(cinfo->cardname, "HYSDN Plexus30"); break;
 766                 default: strcpy(cinfo->cardname, "HYSDN ???"); break;
 767                 }
 768
 769                 ctrl = &cinfo->capi_ctrl;
 770                 ctrl->driver_name   = "hycapi";
 771                 ctrl->driverdata    = cinfo;
 772                 ctrl->register_appl = hycapi_register_appl;
 773                 ctrl->release_appl  = hycapi_release_appl;
 774                 ctrl->send_message  = hycapi_send_message;
 775                 ctrl->load_firmware = hycapi_load_firmware;
 776                 ctrl->reset_ctr     = hycapi_reset_ctr;
 777                 ctrl->procinfo      = hycapi_procinfo;
 778                 ctrl->proc_fops = &hycapi_proc_fops;
 779                 strcpy(ctrl->name, cinfo->cardname);
 780                 ctrl->owner = THIS_MODULE;
 781
 782                 retval = attach_capi_ctr(ctrl);
 783                 if (retval) {
 784                         printk(KERN_ERR "hycapi: attach controller failed.\n");
 785                         return -EBUSY;
 786                 }
 787                 /* fill in the blanks: */
 788                 hycapi_fill_profile(card);
 789                 capi_ctr_ready(ctrl);
 790         } else {
 791                 /* resume output on stopped ctrl */
 792                 ctrl = &card->hyctrlinfo->capi_ctrl;
 793                 hycapi_fill_profile(card);
 794                 capi_ctr_ready(ctrl);
 795                 hycapi_restart_internal(ctrl);
 796 /*              ctrl->resume_output(ctrl); */
 797         }
 798         return 0;
 799 }