drivers/isdn/hardware/avm/t1isa.c

   1 /* $Id: t1isa.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $
   2  *
   3  * Module for AVM T1 HEMA-card.
   4  *
   5  * Copyright 1999 by Carsten Paeth <calle@calle.de>
   6  *
   7  * This software may be used and distributed according to the terms
   8  * of the GNU General Public License, incorporated herein by reference.
   9  *
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/kernel.h>
  14 #include <linux/skbuff.h>
  15 #include <linux/delay.h>
  16 #include <linux/mm.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/ioport.h>
  19 #include <linux/capi.h>
  20 #include <linux/netdevice.h>
  21 #include <linux/kernelcapi.h>
  22 #include <linux/init.h>
  23 #include <linux/pci.h>
  24 #include <linux/gfp.h>
  25 #include <asm/io.h>
  26 #include <linux/isdn/capicmd.h>
  27 #include <linux/isdn/capiutil.h>
  28 #include <linux/isdn/capilli.h>
  29 #include "avmcard.h"
  30
  31 /* ------------------------------------------------------------- */
  32
  33 static char *revision = "$Revision: 1.1.2.3 $";
  34
  35 /* ------------------------------------------------------------- */
  36
  37 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 HEMA ISA card");
  38 MODULE_AUTHOR("Carsten Paeth");
  39 MODULE_LICENSE("GPL");
  40
  41 /* ------------------------------------------------------------- */
  42
  43 static int hema_irq_table[16] =
  44 {0,
  45  0,
  46  0,
  47  0x80,                          /* irq 3 */
  48  0,
  49  0x90,                          /* irq 5 */
  50  0,
  51  0xA0,                          /* irq 7 */
  52  0,
  53  0xB0,                          /* irq 9 */
  54  0xC0,                          /* irq 10 */
  55  0xD0,                          /* irq 11 */
  56  0xE0,                          /* irq 12 */
  57  0,
  58  0,
  59  0xF0,                          /* irq 15 */
  60 };
  61
  62 static int t1_detectandinit(unsigned int base, unsigned irq, int cardnr)
  63 {
  64         unsigned char cregs[8];
  65         unsigned char reverse_cardnr;
  66         unsigned char dummy;
  67         int i;
  68
  69         reverse_cardnr =   ((cardnr & 0x01) << 3) | ((cardnr & 0x02) << 1)
  70                          | ((cardnr & 0x04) >> 1) | ((cardnr & 0x08) >> 3);
  71         cregs[0] = (HEMA_VERSION_ID << 4) | (reverse_cardnr & 0xf);
  72         cregs[1] = 0x00; /* fast & slow link connected to CON1 */
  73         cregs[2] = 0x05; /* fast link 20MBit, slow link 20 MBit */
  74         cregs[3] = 0;
  75         cregs[4] = 0x11; /* zero wait state */
  76         cregs[5] = hema_irq_table[irq & 0xf];
  77         cregs[6] = 0;
  78         cregs[7] = 0;
  79
  80         /*
  81          * no one else should use the ISA bus in this moment,
  82          * but no function there to prevent this :-(
  83          * save_flags(flags); cli();
  84          */
  85
  86         /* board reset */
  87         t1outp(base, T1_RESETBOARD, 0xf);
  88         mdelay(100);
  89         dummy = t1inp(base, T1_FASTLINK+T1_OUTSTAT); /* first read */
  90
  91         /* write config */
  92         dummy = (base >> 4) & 0xff;
  93         for (i=1;i<=0xf;i++) t1outp(base, i, dummy);
  94         t1outp(base, HEMA_PAL_ID & 0xf, dummy);
  95         t1outp(base, HEMA_PAL_ID >> 4, cregs[0]);
  96         for(i=1;i<7;i++) t1outp(base, 0, cregs[i]);
  97         t1outp(base, ((base >> 4)) & 0x3, cregs[7]);
  98         /* restore_flags(flags); */
  99
 100         mdelay(100);
 101         t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
 102         t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
 103         mdelay(10);
 104         t1outp(base, T1_FASTLINK+T1_RESETLINK, 1);
 105         t1outp(base, T1_SLOWLINK+T1_RESETLINK, 1);
 106         mdelay(100);
 107         t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
 108         t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
 109         mdelay(10);
 110         t1outp(base, T1_FASTLINK+T1_ANALYSE, 0);
 111         mdelay(5);
 112         t1outp(base, T1_SLOWLINK+T1_ANALYSE, 0);
 113
 114         if (t1inp(base, T1_FASTLINK+T1_OUTSTAT) != 0x1) /* tx empty */
 115                 return 1;
 116         if (t1inp(base, T1_FASTLINK+T1_INSTAT) != 0x0) /* rx empty */
 117                 return 2;
 118         if (t1inp(base, T1_FASTLINK+T1_IRQENABLE) != 0x0)
 119                 return 3;
 120         if ((t1inp(base, T1_FASTLINK+T1_FIFOSTAT) & 0xf0) != 0x70)
 121                 return 4;
 122         if ((t1inp(base, T1_FASTLINK+T1_IRQMASTER) & 0x0e) != 0)
 123                 return 5;
 124         if ((t1inp(base, T1_FASTLINK+T1_IDENT) & 0x7d) != 1)
 125                 return 6;
 126         if (t1inp(base, T1_SLOWLINK+T1_OUTSTAT) != 0x1) /* tx empty */
 127                 return 7;
 128         if ((t1inp(base, T1_SLOWLINK+T1_IRQMASTER) & 0x0e) != 0)
 129                 return 8;
 130         if ((t1inp(base, T1_SLOWLINK+T1_IDENT) & 0x7d) != 0)
 131                 return 9;
 132         return 0;
 133 }
 134
 135 static irqreturn_t t1isa_interrupt(int interrupt, void *devptr)
 136 {
 137         avmcard *card = devptr;
 138         avmctrl_info *cinfo = &card->ctrlinfo[0];
 139         struct capi_ctr *ctrl = &cinfo->capi_ctrl;
 140         unsigned char b1cmd;
 141         struct sk_buff *skb;
 142
 143         unsigned ApplId;
 144         unsigned MsgLen;
 145         unsigned DataB3Len;
 146         unsigned NCCI;
 147         unsigned WindowSize;
 148         unsigned long flags;
 149
 150         spin_lock_irqsave(&card->lock, flags);
 151
 152         while (b1_rx_full(card->port)) {
 153
 154                 b1cmd = b1_get_byte(card->port);
 155
 156                 switch (b1cmd) {
 157
 158                 case RECEIVE_DATA_B3_IND:
 159
 160                         ApplId = (unsigned) b1_get_word(card->port);
 161                         MsgLen = t1_get_slice(card->port, card->msgbuf);
 162                         DataB3Len = t1_get_slice(card->port, card->databuf);
 163                         spin_unlock_irqrestore(&card->lock, flags);
 164
 165                         if (MsgLen < 30) { /* not CAPI 64Bit */
 166                                 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
 167                                 MsgLen = 30;
 168                                 CAPIMSG_SETLEN(card->msgbuf, 30);
 169                         }
 170                         if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
 171                                 printk(KERN_ERR "%s: incoming packet dropped\n",
 172                                         card->name);
 173                         } else {
 174                                 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
 175                                 memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
 176                                 capi_ctr_handle_message(ctrl, ApplId, skb);
 177                         }
 178                         break;
 179
 180                 case RECEIVE_MESSAGE:
 181
 182                         ApplId = (unsigned) b1_get_word(card->port);
 183                         MsgLen = t1_get_slice(card->port, card->msgbuf);
 184                         if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
 185                                 spin_unlock_irqrestore(&card->lock, flags);
 186                                 printk(KERN_ERR "%s: incoming packet dropped\n",
 187                                                 card->name);
 188                         } else {
 189                                 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
 190                                 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3)
 191                                         capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
 192                                                              CAPIMSG_NCCI(skb->data),
 193                                                              CAPIMSG_MSGID(skb->data));
 194                                 spin_unlock_irqrestore(&card->lock, flags);
 195                                 capi_ctr_handle_message(ctrl, ApplId, skb);
 196                         }
 197                         break;
 198
 199                 case RECEIVE_NEW_NCCI:
 200
 201                         ApplId = b1_get_word(card->port);
 202                         NCCI = b1_get_word(card->port);
 203                         WindowSize = b1_get_word(card->port);
 204                         capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
 205                         spin_unlock_irqrestore(&card->lock, flags);
 206                         break;
 207
 208                 case RECEIVE_FREE_NCCI:
 209
 210                         ApplId = b1_get_word(card->port);
 211                         NCCI = b1_get_word(card->port);
 212                         if (NCCI != 0xffffffff)
 213                                 capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
 214                         spin_unlock_irqrestore(&card->lock, flags);
 215                         break;
 216
 217                 case RECEIVE_START:
 218                         b1_put_byte(card->port, SEND_POLLACK);
 219                         spin_unlock_irqrestore(&card->lock, flags);
 220                         capi_ctr_resume_output(ctrl);
 221                         break;
 222
 223                 case RECEIVE_STOP:
 224                         spin_unlock_irqrestore(&card->lock, flags);
 225                         capi_ctr_suspend_output(ctrl);
 226                         break;
 227
 228                 case RECEIVE_INIT:
 229
 230                         cinfo->versionlen = t1_get_slice(card->port, cinfo->versionbuf);
 231                         spin_unlock_irqrestore(&card->lock, flags);
 232                         b1_parse_version(cinfo);
 233                         printk(KERN_INFO "%s: %s-card (%s) now active\n",
 234                                card->name,
 235                                cinfo->version[VER_CARDTYPE],
 236                                cinfo->version[VER_DRIVER]);
 237                         capi_ctr_ready(ctrl);
 238                         break;
 239
 240                 case RECEIVE_TASK_READY:
 241                         ApplId = (unsigned) b1_get_word(card->port);
 242                         MsgLen = t1_get_slice(card->port, card->msgbuf);
 243                         spin_unlock_irqrestore(&card->lock, flags);
 244                         card->msgbuf[MsgLen] = 0;
 245                         while (    MsgLen > 0
 246                                && (   card->msgbuf[MsgLen-1] == '\n'
 247                                    || card->msgbuf[MsgLen-1] == '\r')) {
 248                                 card->msgbuf[MsgLen-1] = 0;
 249                                 MsgLen--;
 250                         }
 251                         printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
 252                                         card->name, ApplId, card->msgbuf);
 253                         break;
 254
 255                 case RECEIVE_DEBUGMSG:
 256                         MsgLen = t1_get_slice(card->port, card->msgbuf);
 257                         spin_unlock_irqrestore(&card->lock, flags);
 258                         card->msgbuf[MsgLen] = 0;
 259                         while (    MsgLen > 0
 260                                && (   card->msgbuf[MsgLen-1] == '\n'
 261                                    || card->msgbuf[MsgLen-1] == '\r')) {
 262                                 card->msgbuf[MsgLen-1] = 0;
 263                                 MsgLen--;
 264                         }
 265                         printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
 266                         break;
 267
 268
 269                 case 0xff:
 270                         spin_unlock_irqrestore(&card->lock, flags);
 271                         printk(KERN_ERR "%s: card reseted ?\n", card->name);
 272                         return IRQ_HANDLED;
 273                 default:
 274                         spin_unlock_irqrestore(&card->lock, flags);
 275                         printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
 276                                         card->name, b1cmd);
 277                         return IRQ_NONE;
 278                 }
 279         }
 280         return IRQ_HANDLED;
 281 }
 282
 283 /* ------------------------------------------------------------- */
 284
 285 static int t1isa_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
 286 {
 287         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 288         avmcard *card = cinfo->card;
 289         unsigned int port = card->port;
 290         unsigned long flags;
 291         int retval;
 292
 293         t1_disable_irq(port);
 294         b1_reset(port);
 295
 296         if ((retval = b1_load_t4file(card, &data->firmware))) {
 297                 b1_reset(port);
 298                 printk(KERN_ERR "%s: failed to load t4file!!\n",
 299                                         card->name);
 300                 return retval;
 301         }
 302
 303         if (data->configuration.len > 0 && data->configuration.data) {
 304                 if ((retval = b1_load_config(card, &data->configuration))) {
 305                         b1_reset(port);
 306                         printk(KERN_ERR "%s: failed to load config!!\n",
 307                                         card->name);
 308                         return retval;
 309                 }
 310         }
 311
 312         if (!b1_loaded(card)) {
 313                 printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
 314                 return -EIO;
 315         }
 316
 317         spin_lock_irqsave(&card->lock, flags);
 318         b1_setinterrupt(port, card->irq, card->cardtype);
 319         b1_put_byte(port, SEND_INIT);
 320         b1_put_word(port, CAPI_MAXAPPL);
 321         b1_put_word(port, AVM_NCCI_PER_CHANNEL*30);
 322         b1_put_word(port, ctrl->cnr - 1);
 323         spin_unlock_irqrestore(&card->lock, flags);
 324
 325         return 0;
 326 }
 327
 328 static void t1isa_reset_ctr(struct capi_ctr *ctrl)
 329 {
 330         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 331         avmcard *card = cinfo->card;
 332         unsigned int port = card->port;
 333         unsigned long flags;
 334
 335         t1_disable_irq(port);
 336         b1_reset(port);
 337         b1_reset(port);
 338
 339         memset(cinfo->version, 0, sizeof(cinfo->version));
 340         spin_lock_irqsave(&card->lock, flags);
 341         capilib_release(&cinfo->ncci_head);
 342         spin_unlock_irqrestore(&card->lock, flags);
 343         capi_ctr_down(ctrl);
 344 }
 345
 346 static void t1isa_remove(struct pci_dev *pdev)
 347 {
 348         avmctrl_info *cinfo = pci_get_drvdata(pdev);
 349         avmcard *card;
 350
 351         if (!cinfo)
 352                 return;
 353
 354         card = cinfo->card;
 355
 356         t1_disable_irq(card->port);
 357         b1_reset(card->port);
 358         b1_reset(card->port);
 359         t1_reset(card->port);
 360
 361         detach_capi_ctr(&cinfo->capi_ctrl);
 362         free_irq(card->irq, card);
 363         release_region(card->port, AVMB1_PORTLEN);
 364         b1_free_card(card);
 365 }
 366
 367 /* ------------------------------------------------------------- */
 368
 369 static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
 370 static char *t1isa_procinfo(struct capi_ctr *ctrl);
 371
 372 static int t1isa_probe(struct pci_dev *pdev, int cardnr)
 373 {
 374         avmctrl_info *cinfo;
 375         avmcard *card;
 376         int retval;
 377
 378         card = b1_alloc_card(1);
 379         if (!card) {
 380                 printk(KERN_WARNING "t1isa: no memory.\n");
 381                 retval = -ENOMEM;
 382                 goto err;
 383         }
 384
 385         cinfo = card->ctrlinfo;
 386         card->port = pci_resource_start(pdev, 0);
 387         card->irq = pdev->irq;
 388         card->cardtype = avm_t1isa;
 389         card->cardnr = cardnr;
 390         sprintf(card->name, "t1isa-%x", card->port);
 391
 392         if (!(((card->port & 0x7) == 0) && ((card->port & 0x30) != 0x30))) {
 393                 printk(KERN_WARNING "t1isa: invalid port 0x%x.\n", card->port);
 394                 retval = -EINVAL;
 395                 goto err_free;
 396         }
 397         if (hema_irq_table[card->irq & 0xf] == 0) {
 398                 printk(KERN_WARNING "t1isa: irq %d not valid.\n", card->irq);
 399                 retval = -EINVAL;
 400                 goto err_free;
 401         }
 402         if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
 403                 printk(KERN_INFO "t1isa: ports 0x%03x-0x%03x in use.\n",
 404                        card->port, card->port + AVMB1_PORTLEN);
 405                 retval = -EBUSY;
 406                 goto err_free;
 407         }
 408         retval = request_irq(card->irq, t1isa_interrupt, 0, card->name, card);
 409         if (retval) {
 410                 printk(KERN_INFO "t1isa: unable to get IRQ %d.\n", card->irq);
 411                 retval = -EBUSY;
 412                 goto err_release_region;
 413         }
 414
 415         if ((retval = t1_detectandinit(card->port, card->irq, card->cardnr)) != 0) {
 416                 printk(KERN_INFO "t1isa: NO card at 0x%x (%d)\n",
 417                        card->port, retval);
 418                 retval = -ENODEV;
 419                 goto err_free_irq;
 420         }
 421         t1_disable_irq(card->port);
 422         b1_reset(card->port);
 423
 424         cinfo->capi_ctrl.owner = THIS_MODULE;
 425         cinfo->capi_ctrl.driver_name   = "t1isa";
 426         cinfo->capi_ctrl.driverdata    = cinfo;
 427         cinfo->capi_ctrl.register_appl = b1_register_appl;
 428         cinfo->capi_ctrl.release_appl  = b1_release_appl;
 429         cinfo->capi_ctrl.send_message  = t1isa_send_message;
 430         cinfo->capi_ctrl.load_firmware = t1isa_load_firmware;
 431         cinfo->capi_ctrl.reset_ctr     = t1isa_reset_ctr;
 432         cinfo->capi_ctrl.procinfo      = t1isa_procinfo;
 433         cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops;
 434         strcpy(cinfo->capi_ctrl.name, card->name);
 435
 436         retval = attach_capi_ctr(&cinfo->capi_ctrl);
 437         if (retval) {
 438                 printk(KERN_INFO "t1isa: attach controller failed.\n");
 439                 goto err_free_irq;
 440         }
 441
 442         printk(KERN_INFO "t1isa: AVM T1 ISA at i/o %#x, irq %d, card %d\n",
 443                card->port, card->irq, card->cardnr);
 444
 445         pci_set_drvdata(pdev, cinfo);
 446         return 0;
 447
 448  err_free_irq:
 449         free_irq(card->irq, card);
 450  err_release_region:
 451         release_region(card->port, AVMB1_PORTLEN);
 452  err_free:
 453         b1_free_card(card);
 454  err:
 455         return retval;
 456 }
 457
 458 static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
 459 {
 460         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 461         avmcard *card = cinfo->card;
 462         unsigned int port = card->port;
 463         unsigned long flags;
 464         u16 len = CAPIMSG_LEN(skb->data);
 465         u8 cmd = CAPIMSG_COMMAND(skb->data);
 466         u8 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
 467         u16 dlen, retval;
 468
 469         spin_lock_irqsave(&card->lock, flags);
 470         if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
 471                 retval = capilib_data_b3_req(&cinfo->ncci_head,
 472                                              CAPIMSG_APPID(skb->data),
 473                                              CAPIMSG_NCCI(skb->data),
 474                                              CAPIMSG_MSGID(skb->data));
 475                 if (retval != CAPI_NOERROR) {
 476                         spin_unlock_irqrestore(&card->lock, flags);
 477                         return retval;
 478                 }
 479                 dlen = CAPIMSG_DATALEN(skb->data);
 480
 481                 b1_put_byte(port, SEND_DATA_B3_REQ);
 482                 t1_put_slice(port, skb->data, len);
 483                 t1_put_slice(port, skb->data + len, dlen);
 484         } else {
 485                 b1_put_byte(port, SEND_MESSAGE);
 486                 t1_put_slice(port, skb->data, len);
 487         }
 488         spin_unlock_irqrestore(&card->lock, flags);
 489         dev_kfree_skb_any(skb);
 490         return CAPI_NOERROR;
 491 }
 492 /* ------------------------------------------------------------- */
 493
 494 static char *t1isa_procinfo(struct capi_ctr *ctrl)
 495 {
 496         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 497
 498         if (!cinfo)
 499                 return "";
 500         sprintf(cinfo->infobuf, "%s %s 0x%x %d %d",
 501                 cinfo->cardname[0] ? cinfo->cardname : "-",
 502                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
 503                 cinfo->card ? cinfo->card->port : 0x0,
 504                 cinfo->card ? cinfo->card->irq : 0,
 505                 cinfo->card ? cinfo->card->cardnr : 0
 506                 );
 507         return cinfo->infobuf;
 508 }
 509
 510
 511 /* ------------------------------------------------------------- */
 512
 513 #define MAX_CARDS 4
 514 static struct pci_dev isa_dev[MAX_CARDS];
 515 static int io[MAX_CARDS];
 516 static int irq[MAX_CARDS];
 517 static int cardnr[MAX_CARDS];
 518
 519 module_param_array(io, int, NULL, 0);
 520 module_param_array(irq, int, NULL, 0);
 521 module_param_array(cardnr, int, NULL, 0);
 522 MODULE_PARM_DESC(io, "I/O base address(es)");
 523 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
 524 MODULE_PARM_DESC(cardnr, "Card number(s) (as jumpered)");
 525
 526 static int t1isa_add_card(struct capi_driver *driver, capicardparams *data)
 527 {
 528         int i;
 529
 530         for (i = 0; i < MAX_CARDS; i++) {
 531                 if (isa_dev[i].resource[0].start)
 532                         continue;
 533
 534                 isa_dev[i].resource[0].start = data->port;
 535                 isa_dev[i].irq = data->irq;
 536
 537                 if (t1isa_probe(&isa_dev[i], data->cardnr) == 0)
 538                         return 0;
 539         }
 540         return -ENODEV;
 541 }
 542
 543 static struct capi_driver capi_driver_t1isa = {
 544         .name           = "t1isa",
 545         .revision       = "1.0",
 546         .add_card       = t1isa_add_card,
 547 };
 548
 549 static int __init t1isa_init(void)
 550 {
 551         char rev[32];
 552         char *p;
 553         int i;
 554
 555         if ((p = strchr(revision, ':')) != NULL && p[1]) {
 556                 strlcpy(rev, p + 2, 32);
 557                 if ((p = strchr(rev, '$')) != NULL && p > rev)
 558                    *(p-1) = 0;
 559         } else
 560                 strcpy(rev, "1.0");
 561
 562         for (i = 0; i < MAX_CARDS; i++) {
 563                 if (!io[i])
 564                         break;
 565
 566                 isa_dev[i].resource[0].start = io[i];
 567                 isa_dev[i].irq = irq[i];
 568
 569                 if (t1isa_probe(&isa_dev[i], cardnr[i]) != 0)
 570                         return -ENODEV;
 571         }
 572
 573         strlcpy(capi_driver_t1isa.revision, rev, 32);
 574         register_capi_driver(&capi_driver_t1isa);
 575         printk(KERN_INFO "t1isa: revision %s\n", rev);
 576
 577         return 0;
 578 }
 579
 580 static void __exit t1isa_exit(void)
 581 {
 582         int i;
 583
 584         unregister_capi_driver(&capi_driver_t1isa);
 585         for (i = 0; i < MAX_CARDS; i++) {
 586                 if (!io[i])
 587                         break;
 588
 589                 t1isa_remove(&isa_dev[i]);
 590         }
 591 }
 592
 593 module_init(t1isa_init);
 594 module_exit(t1isa_exit);