linux/drivers/isdn/hysdn/hycapi.c
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   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
  34static char hycapi_revision[] = "$Revision: 1.8.6.4 $";
  35
  36unsigned int hycapi_enable = 0xffffffff;
  37module_param(hycapi_enable, uint, 0);
  38
  39typedef 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
  45static hycapi_appl hycapi_applications[CAPI_MAXAPPL];
  46
  47static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
  48
  49static 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/******************************
  61Kernel-Capi callback reset_ctr
  62******************************/
  63
  64static void
  65hycapi_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/******************************
  77Kernel-Capi callback remove_ctr
  78******************************/
  79
  80static void
  81hycapi_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
 112Queue a CAPI-message to the controller.
 113
 114***********************************************************/
 115
 116static void
 117hycapi_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/***********************************************************
 142hycapi_register_internal
 143
 144Send down the CAPI_REGISTER-Command to the controller.
 145This functions will also be used if the adapter has been rebooted to
 146re-register any applications in the private list.
 147
 148************************************************************/
 149
 150static void
 151hycapi_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/************************************************************
 189hycapi_restart_internal
 190
 191After an adapter has been rebootet, re-register all applications and
 192send a LISTEN_REQ (if there has been such a thing )
 193
 194*************************************************************/
 195
 196static 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/*************************************************************
 216Register an application.
 217Error-checking is done for CAPI-compliance.
 218
 219The application is recorded in the internal list.
 220*************************************************************/
 221
 222static void
 223hycapi_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
 257hycapi_release_internal
 258
 259Send down a CAPI_RELEASE to the controller.
 260*********************************************************************/
 261
 262static 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/******************************************************************
 292hycapi_release_appl
 293
 294Release the application from the internal list an remove it's
 295registration at controller-level
 296******************************************************************/
 297
 298static void
 299hycapi_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/**************************************************************
 320Kill a single controller.
 321**************************************************************/
 322
 323int 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/**************************************************************
 338hycapi_capi_stop
 339
 340Stop CAPI-Output on a card. (e.g. during reboot)
 341***************************************************************/
 342
 343int 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/***************************************************************
 359hycapi_send_message
 360
 361Send a message to the controller.
 362
 363Messages are parsed for their Command/Subcommand-type, and appropriate
 364action's are performed.
 365
 366Note that we have to muck around with a 64Bit-DATA_REQ as there are
 367firmware-releases that do not check the MsgLen-Indication!
 368
 369***************************************************************/
 370
 371static 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        }
 429out:
 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
 438static 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
 470static int hycapi_proc_open(struct inode *inode, struct file *file)
 471{
 472        return single_open(file, hycapi_proc_show, PDE_DATA(inode));
 473}
 474
 475static 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/**************************************************************
 484hycapi_load_firmware
 485
 486This does NOT load any firmware, but the callback somehow is needed
 487on capi-interface registration.
 488
 489**************************************************************/
 490
 491static 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
 500static 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/******************************************************************
 519hycapi_rx_capipkt
 520
 521Receive a capi-message.
 522
 523All B3_DATA_IND are converted to 64K-extension compatible format.
 524New nccis are created if necessary.
 525*******************************************************************/
 526
 527void
 528hycapi_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/******************************************************************
 626hycapi_tx_capiack
 627
 628Internally acknowledge a msg sent. This will remove the msg from the
 629internal queue.
 630
 631*******************************************************************/
 632
 633void 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/***************************************************************
 654hycapi_tx_capiget(hysdn_card *card)
 655
 656This is called when polling for messages to SEND.
 657
 658****************************************************************/
 659
 660struct sk_buff *
 661hycapi_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/**********************************************************
 675int hycapi_init()
 676
 677attach the capi-driver to the kernel-capi.
 678
 679***********************************************************/
 680
 681int 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/**************************************************************
 691hycapi_cleanup(void)
 692
 693detach the capi-driver to the kernel-capi. Actually this should
 694free some more ressources. Do that later.
 695**************************************************************/
 696
 697void
 698hycapi_cleanup(void)
 699{
 700}
 701
 702/********************************************************************
 703hycapi_capi_create(hysdn_card *card)
 704
 705Attach the card with its capi-ctrl.
 706*********************************************************************/
 707
 708static 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
 737int
 738hycapi_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}
 800