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   1 /* $Id: gazel.c,v 2.19.2.4 2004/01/14 16:04:48 keil Exp $
   2  *
   3  * low level stuff for Gazel isdn cards
   4  *
   5  * Author       BeWan Systems
   6  *              based on source code from Karsten Keil
   7  * Copyright    by BeWan Systems
   8  *
   9  * This software may be used and distributed according to the terms
  10  * of the GNU General Public License, incorporated herein by reference.
  11  *
  12  */
  13
  14 #include <linux/init.h>
  15 #include "hisax.h"
  16 #include "isac.h"
  17 #include "hscx.h"
  18 #include "isdnl1.h"
  19 #include "ipac.h"
  20 #include <linux/pci.h>
  21
  22 extern const char *CardType[];
  23 static const char *gazel_revision = "$Revision: 2.19.2.4 $";
  24
  25 #define R647      1
  26 #define R685      2
  27 #define R753      3
  28 #define R742      4
  29
  30 #define PLX_CNTRL    0x50       /* registre de controle PLX */
  31 #define RESET_GAZEL  0x4
  32 #define RESET_9050   0x40000000
  33 #define PLX_INCSR    0x4C       /* registre d'IT du 9050 */
  34 #define INT_ISAC_EN  0x8        /* 1 = enable IT isac */
  35 #define INT_ISAC     0x20       /* 1 = IT isac en cours */
  36 #define INT_HSCX_EN  0x1        /* 1 = enable IT hscx */
  37 #define INT_HSCX     0x4        /* 1 = IT hscx en cours */
  38 #define INT_PCI_EN   0x40       /* 1 = enable IT PCI */
  39 #define INT_IPAC_EN  0x3        /* enable IT ipac */
  40
  41
  42 #define byteout(addr,val) outb(val,addr)
  43 #define bytein(addr) inb(addr)
  44
  45 static inline u_char
  46 readreg(unsigned int adr, u_short off)
  47 {
  48         return bytein(adr + off);
  49 }
  50
  51 static inline void
  52 writereg(unsigned int adr, u_short off, u_char data)
  53 {
  54         byteout(adr + off, data);
  55 }
  56
  57
  58 static inline void
  59 read_fifo(unsigned int adr, u_char * data, int size)
  60 {
  61         insb(adr, data, size);
  62 }
  63
  64 static void
  65 write_fifo(unsigned int adr, u_char * data, int size)
  66 {
  67         outsb(adr, data, size);
  68 }
  69
  70 static inline u_char
  71 readreg_ipac(unsigned int adr, u_short off)
  72 {
  73         register u_char ret;
  74
  75         byteout(adr, off);
  76         ret = bytein(adr + 4);
  77         return ret;
  78 }
  79
  80 static inline void
  81 writereg_ipac(unsigned int adr, u_short off, u_char data)
  82 {
  83         byteout(adr, off);
  84         byteout(adr + 4, data);
  85 }
  86
  87
  88 static inline void
  89 read_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size)
  90 {
  91         byteout(adr, off);
  92         insb(adr + 4, data, size);
  93 }
  94
  95 static void
  96 write_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size)
  97 {
  98         byteout(adr, off);
  99         outsb(adr + 4, data, size);
 100 }
 101
 102 /* Interface functions */
 103
 104 static u_char
 105 ReadISAC(struct IsdnCardState *cs, u_char offset)
 106 {
 107         u_short off2 = offset;
 108
 109         switch (cs->subtyp) {
 110                 case R647:
 111                         off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
 112                 case R685:
 113                         return (readreg(cs->hw.gazel.isac, off2));
 114                 case R753:
 115                 case R742:
 116                         return (readreg_ipac(cs->hw.gazel.ipac, 0x80 + off2));
 117         }
 118         return 0;
 119 }
 120
 121 static void
 122 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
 123 {
 124         u_short off2 = offset;
 125
 126         switch (cs->subtyp) {
 127                 case R647:
 128                         off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
 129                 case R685:
 130                         writereg(cs->hw.gazel.isac, off2, value);
 131                         break;
 132                 case R753:
 133                 case R742:
 134                         writereg_ipac(cs->hw.gazel.ipac, 0x80 + off2, value);
 135                         break;
 136         }
 137 }
 138
 139 static void
 140 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
 141 {
 142         switch (cs->subtyp) {
 143                 case R647:
 144                 case R685:
 145                         read_fifo(cs->hw.gazel.isacfifo, data, size);
 146                         break;
 147                 case R753:
 148                 case R742:
 149                         read_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
 150                         break;
 151         }
 152 }
 153
 154 static void
 155 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
 156 {
 157         switch (cs->subtyp) {
 158                 case R647:
 159                 case R685:
 160                         write_fifo(cs->hw.gazel.isacfifo, data, size);
 161                         break;
 162                 case R753:
 163                 case R742:
 164                         write_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
 165                         break;
 166         }
 167 }
 168
 169 static void
 170 ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
 171 {
 172         switch (cs->subtyp) {
 173                 case R647:
 174                 case R685:
 175                         read_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
 176                         break;
 177                 case R753:
 178                 case R742:
 179                         read_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
 180                         break;
 181         }
 182 }
 183
 184 static void
 185 WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
 186 {
 187         switch (cs->subtyp) {
 188                 case R647:
 189                 case R685:
 190                         write_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
 191                         break;
 192                 case R753:
 193                 case R742:
 194                         write_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
 195                         break;
 196         }
 197 }
 198
 199 static u_char
 200 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
 201 {
 202         u_short off2 = offset;
 203
 204         switch (cs->subtyp) {
 205                 case R647:
 206                         off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
 207                 case R685:
 208                         return (readreg(cs->hw.gazel.hscx[hscx], off2));
 209                 case R753:
 210                 case R742:
 211                         return (readreg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2));
 212         }
 213         return 0;
 214 }
 215
 216 static void
 217 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
 218 {
 219         u_short off2 = offset;
 220
 221         switch (cs->subtyp) {
 222                 case R647:
 223                         off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
 224                 case R685:
 225                         writereg(cs->hw.gazel.hscx[hscx], off2, value);
 226                         break;
 227                 case R753:
 228                 case R742:
 229                         writereg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2, value);
 230                         break;
 231         }
 232 }
 233
 234 /*
 235  * fast interrupt HSCX stuff goes here
 236  */
 237
 238 #define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg)
 239 #define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data)
 240 #define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt)
 241 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt)
 242
 243 #include "hscx_irq.c"
 244
 245 static irqreturn_t
 246 gazel_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 247 {
 248 #define MAXCOUNT 5
 249         struct IsdnCardState *cs = dev_id;
 250         u_char valisac, valhscx;
 251         int count = 0;
 252         u_long flags;
 253
 254         spin_lock_irqsave(&cs->lock, flags);
 255         do {
 256                 valhscx = ReadHSCX(cs, 1, HSCX_ISTA);
 257                 if (valhscx)
 258                         hscx_int_main(cs, valhscx);
 259                 valisac = ReadISAC(cs, ISAC_ISTA);
 260                 if (valisac)
 261                         isac_interrupt(cs, valisac);
 262                 count++;
 263         } while ((valhscx || valisac) && (count < MAXCOUNT));
 264
 265         WriteHSCX(cs, 0, HSCX_MASK, 0xFF);
 266         WriteHSCX(cs, 1, HSCX_MASK, 0xFF);
 267         WriteISAC(cs, ISAC_MASK, 0xFF);
 268         WriteISAC(cs, ISAC_MASK, 0x0);
 269         WriteHSCX(cs, 0, HSCX_MASK, 0x0);
 270         WriteHSCX(cs, 1, HSCX_MASK, 0x0);
 271         spin_unlock_irqrestore(&cs->lock, flags);
 272         return IRQ_HANDLED;
 273 }
 274
 275
 276 static irqreturn_t
 277 gazel_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
 278 {
 279         struct IsdnCardState *cs = dev_id;
 280         u_char ista, val;
 281         int count = 0;
 282         u_long flags;
 283
 284         spin_lock_irqsave(&cs->lock, flags);
 285         ista = ReadISAC(cs, IPAC_ISTA - 0x80);
 286         do {
 287                 if (ista & 0x0f) {
 288                         val = ReadHSCX(cs, 1, HSCX_ISTA);
 289                         if (ista & 0x01)
 290                                 val |= 0x01;
 291                         if (ista & 0x04)
 292                                 val |= 0x02;
 293                         if (ista & 0x08)
 294                                 val |= 0x04;
 295                         if (val) {
 296                                 hscx_int_main(cs, val);
 297                         }
 298                 }
 299                 if (ista & 0x20) {
 300                         val = 0xfe & ReadISAC(cs, ISAC_ISTA);
 301                         if (val) {
 302                                 isac_interrupt(cs, val);
 303                         }
 304                 }
 305                 if (ista & 0x10) {
 306                         val = 0x01;
 307                         isac_interrupt(cs, val);
 308                 }
 309                 ista = ReadISAC(cs, IPAC_ISTA - 0x80);
 310                 count++;
 311         }
 312         while ((ista & 0x3f) && (count < MAXCOUNT));
 313
 314         WriteISAC(cs, IPAC_MASK - 0x80, 0xFF);
 315         WriteISAC(cs, IPAC_MASK - 0x80, 0xC0);
 316         spin_unlock_irqrestore(&cs->lock, flags);
 317         return IRQ_HANDLED;
 318 }
 319
 320 static void
 321 release_io_gazel(struct IsdnCardState *cs)
 322 {
 323         unsigned int i;
 324
 325         switch (cs->subtyp) {
 326                 case R647:
 327                         for (i = 0x0000; i < 0xC000; i += 0x1000)
 328                                 release_region(i + cs->hw.gazel.hscx[0], 16);
 329                         release_region(0xC000 + cs->hw.gazel.hscx[0], 1);
 330                         break;
 331
 332                 case R685:
 333                         release_region(cs->hw.gazel.hscx[0], 0x100);
 334                         release_region(cs->hw.gazel.cfg_reg, 0x80);
 335                         break;
 336
 337                 case R753:
 338                         release_region(cs->hw.gazel.ipac, 0x8);
 339                         release_region(cs->hw.gazel.cfg_reg, 0x80);
 340                         break;
 341
 342                 case R742:
 343                         release_region(cs->hw.gazel.ipac, 8);
 344                         break;
 345         }
 346 }
 347
 348 static int
 349 reset_gazel(struct IsdnCardState *cs)
 350 {
 351         unsigned long plxcntrl, addr = cs->hw.gazel.cfg_reg;
 352
 353         switch (cs->subtyp) {
 354                 case R647:
 355                         writereg(addr, 0, 0);
 356                         HZDELAY(10);
 357                         writereg(addr, 0, 1);
 358                         HZDELAY(2);
 359                         break;
 360                 case R685:
 361                         plxcntrl = inl(addr + PLX_CNTRL);
 362                         plxcntrl |= (RESET_9050 + RESET_GAZEL);
 363                         outl(plxcntrl, addr + PLX_CNTRL);
 364                         plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
 365                         HZDELAY(4);
 366                         outl(plxcntrl, addr + PLX_CNTRL);
 367                         HZDELAY(10);
 368                         outb(INT_ISAC_EN + INT_HSCX_EN + INT_PCI_EN, addr + PLX_INCSR);
 369                         break;
 370                 case R753:
 371                         plxcntrl = inl(addr + PLX_CNTRL);
 372                         plxcntrl |= (RESET_9050 + RESET_GAZEL);
 373                         outl(plxcntrl, addr + PLX_CNTRL);
 374                         plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
 375                         WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
 376                         HZDELAY(4);
 377                         outl(plxcntrl, addr + PLX_CNTRL);
 378                         HZDELAY(10);
 379                         WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
 380                         WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
 381                         WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
 382                         WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
 383                         WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
 384                         outb(INT_IPAC_EN + INT_PCI_EN, addr + PLX_INCSR);
 385                         WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
 386                         break;
 387                 case R742:
 388                         WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
 389                         HZDELAY(4);
 390                         WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
 391                         WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
 392                         WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
 393                         WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
 394                         WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
 395                         WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
 396                         break;
 397         }
 398         return (0);
 399 }
 400
 401 static int
 402 Gazel_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 403 {
 404         u_long flags;
 405
 406         switch (mt) {
 407                 case CARD_RESET:
 408                         spin_lock_irqsave(&cs->lock, flags);
 409                         reset_gazel(cs);
 410                         spin_unlock_irqrestore(&cs->lock, flags);
 411                         return (0);
 412                 case CARD_RELEASE:
 413                         release_io_gazel(cs);
 414                         return (0);
 415                 case CARD_INIT:
 416                         spin_lock_irqsave(&cs->lock, flags);
 417                         inithscxisac(cs, 1);
 418                         if ((cs->subtyp==R647)||(cs->subtyp==R685)) {
 419                                 int i;
 420                                 for (i=0;i<(2+MAX_WAITING_CALLS);i++) {
 421                                         cs->bcs[i].hw.hscx.tsaxr0 = 0x1f;
 422                                         cs->bcs[i].hw.hscx.tsaxr1 = 0x23;
 423                                 }
 424                         }
 425                         spin_unlock_irqrestore(&cs->lock, flags);
 426                         return (0);
 427                 case CARD_TEST:
 428                         return (0);
 429         }
 430         return (0);
 431 }
 432
 433 static int
 434 reserve_regions(struct IsdnCard *card, struct IsdnCardState *cs)
 435 {
 436         unsigned int i, j, base = 0, adr = 0, len = 0;
 437
 438         switch (cs->subtyp) {
 439                 case R647:
 440                         base = cs->hw.gazel.hscx[0];
 441                         if (!request_region(adr = (0xC000 + base), len = 1, "gazel"))
 442                                 goto error;
 443                         for (i = 0x0000; i < 0xC000; i += 0x1000) {
 444                                 if (!request_region(adr = (i + base), len = 16, "gazel"))
 445                                         goto error;
 446                         }
 447                         if (i != 0xC000) {
 448                                 for (j = 0; j < i; j+= 0x1000)
 449                                         release_region(j + base, 16);
 450                                 release_region(0xC000 + base, 1);
 451                                 goto error;
 452                         }
 453                         break;
 454
 455                 case R685:
 456                         if (!request_region(adr = cs->hw.gazel.hscx[0], len = 0x100, "gazel"))
 457                                 goto error;
 458                         if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) {
 459                                 release_region(cs->hw.gazel.hscx[0],0x100);
 460                                 goto error;
 461                         }
 462                         break;
 463
 464                 case R753:
 465                         if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel"))
 466                                 goto error;
 467                         if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) {
 468                                 release_region(cs->hw.gazel.ipac, 8);
 469                                 goto error;
 470                         }
 471                         break;
 472
 473                 case R742:
 474                         if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel"))
 475                                 goto error;
 476                         break;
 477         }
 478
 479         return 0;
 480
 481       error:
 482         printk(KERN_WARNING "Gazel: %s io ports 0x%x-0x%x already in use\n",
 483                CardType[cs->typ], adr, adr + len);
 484         return 1;
 485 }
 486
 487 static int __init
 488 setup_gazelisa(struct IsdnCard *card, struct IsdnCardState *cs)
 489 {
 490         printk(KERN_INFO "Gazel: ISA PnP card automatic recognition\n");
 491         // we got an irq parameter, assume it is an ISA card
 492         // R742 decodes address even in not started...
 493         // R647 returns FF if not present or not started
 494         // eventually needs improvment
 495         if (readreg_ipac(card->para[1], IPAC_ID) == 1)
 496                 cs->subtyp = R742;
 497         else
 498                 cs->subtyp = R647;
 499
 500         setup_isac(cs);
 501         cs->hw.gazel.cfg_reg = card->para[1] + 0xC000;
 502         cs->hw.gazel.ipac = card->para[1];
 503         cs->hw.gazel.isac = card->para[1] + 0x8000;
 504         cs->hw.gazel.hscx[0] = card->para[1];
 505         cs->hw.gazel.hscx[1] = card->para[1] + 0x4000;
 506         cs->irq = card->para[0];
 507         cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
 508         cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
 509         cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
 510
 511         switch (cs->subtyp) {
 512                 case R647:
 513                         printk(KERN_INFO "Gazel: Card ISA R647/R648 found\n");
 514                         cs->dc.isac.adf2 = 0x87;
 515                         printk(KERN_INFO
 516                                 "Gazel: config irq:%d isac:0x%X  cfg:0x%X\n",
 517                                 cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
 518                         printk(KERN_INFO
 519                                 "Gazel: hscx A:0x%X  hscx B:0x%X\n",
 520                                 cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
 521
 522                         break;
 523                 case R742:
 524                         printk(KERN_INFO "Gazel: Card ISA R742 found\n");
 525                         test_and_set_bit(HW_IPAC, &cs->HW_Flags);
 526                         printk(KERN_INFO
 527                                "Gazel: config irq:%d ipac:0x%X\n",
 528                                cs->irq, cs->hw.gazel.ipac);
 529                         break;
 530         }
 531
 532         return (0);
 533 }
 534
 535 static struct pci_dev *dev_tel __initdata = NULL;
 536
 537 static int __init
 538 setup_gazelpci(struct IsdnCardState *cs)
 539 {
 540         u_int pci_ioaddr0 = 0, pci_ioaddr1 = 0;
 541         u_char pci_irq = 0, found;
 542         u_int nbseek, seekcard;
 543
 544         printk(KERN_WARNING "Gazel: PCI card automatic recognition\n");
 545
 546         found = 0;
 547         seekcard = PCI_DEVICE_ID_PLX_R685;
 548         for (nbseek = 0; nbseek < 4; nbseek++) {
 549                 if ((dev_tel = pci_find_device(PCI_VENDOR_ID_PLX,
 550                                         seekcard, dev_tel))) {
 551                         if (pci_enable_device(dev_tel))
 552                                 return 1;
 553                         pci_irq = dev_tel->irq;
 554                         pci_ioaddr0 = pci_resource_start(dev_tel, 1);
 555                         pci_ioaddr1 = pci_resource_start(dev_tel, 2);
 556                         found = 1;
 557                 }
 558                 if (found)
 559                         break;
 560                 else {
 561                         switch (seekcard) {
 562                                 case PCI_DEVICE_ID_PLX_R685:
 563                                         seekcard = PCI_DEVICE_ID_PLX_R753;
 564                                         break;
 565                                 case PCI_DEVICE_ID_PLX_R753:
 566                                         seekcard = PCI_DEVICE_ID_PLX_DJINN_ITOO;
 567                                         break;
 568                                 case PCI_DEVICE_ID_PLX_DJINN_ITOO:
 569                                         seekcard = PCI_DEVICE_ID_PLX_OLITEC;
 570                                         break;
 571                         }
 572                 }
 573         }
 574         if (!found) {
 575                 printk(KERN_WARNING "Gazel: No PCI card found\n");
 576                 return (1);
 577         }
 578         if (!pci_irq) {
 579                 printk(KERN_WARNING "Gazel: No IRQ for PCI card found\n");
 580                 return 1;
 581         }
 582         cs->hw.gazel.pciaddr[0] = pci_ioaddr0;
 583         cs->hw.gazel.pciaddr[1] = pci_ioaddr1;
 584         setup_isac(cs);
 585         pci_ioaddr1 &= 0xfffe;
 586         cs->hw.gazel.cfg_reg = pci_ioaddr0 & 0xfffe;
 587         cs->hw.gazel.ipac = pci_ioaddr1;
 588         cs->hw.gazel.isac = pci_ioaddr1 + 0x80;
 589         cs->hw.gazel.hscx[0] = pci_ioaddr1;
 590         cs->hw.gazel.hscx[1] = pci_ioaddr1 + 0x40;
 591         cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
 592         cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
 593         cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
 594         cs->irq = pci_irq;
 595         cs->irq_flags |= SA_SHIRQ;
 596
 597         switch (seekcard) {
 598                 case PCI_DEVICE_ID_PLX_R685:
 599                         printk(KERN_INFO "Gazel: Card PCI R685 found\n");
 600                         cs->subtyp = R685;
 601                         cs->dc.isac.adf2 = 0x87;
 602                         printk(KERN_INFO
 603                             "Gazel: config irq:%d isac:0x%X  cfg:0x%X\n",
 604                         cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
 605                         printk(KERN_INFO
 606                                "Gazel: hscx A:0x%X  hscx B:0x%X\n",
 607                              cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
 608                         break;
 609                 case PCI_DEVICE_ID_PLX_R753:
 610                 case PCI_DEVICE_ID_PLX_DJINN_ITOO:
 611                 case PCI_DEVICE_ID_PLX_OLITEC:
 612                         printk(KERN_INFO "Gazel: Card PCI R753 found\n");
 613                         cs->subtyp = R753;
 614                         test_and_set_bit(HW_IPAC, &cs->HW_Flags);
 615                         printk(KERN_INFO
 616                             "Gazel: config irq:%d ipac:0x%X  cfg:0x%X\n",
 617                         cs->irq, cs->hw.gazel.ipac, cs->hw.gazel.cfg_reg);
 618                         break;
 619         }
 620
 621         return (0);
 622 }
 623
 624 int __init
 625 setup_gazel(struct IsdnCard *card)
 626 {
 627         struct IsdnCardState *cs = card->cs;
 628         char tmp[64];
 629         u_char val;
 630
 631         strcpy(tmp, gazel_revision);
 632         printk(KERN_INFO "Gazel: Driver Revision %s\n", HiSax_getrev(tmp));
 633
 634         if (cs->typ != ISDN_CTYPE_GAZEL)
 635                 return (0);
 636
 637         if (card->para[0]) {
 638                 if (setup_gazelisa(card, cs))
 639                         return (0);
 640         } else {
 641
 642 #ifdef CONFIG_PCI
 643                 if (setup_gazelpci(cs))
 644                         return (0);
 645 #else
 646                 printk(KERN_WARNING "Gazel: Card PCI requested and NO_PCI_BIOS, unable to config\n");
 647                 return (0);
 648 #endif                          /* CONFIG_PCI */
 649         }
 650
 651         if (reserve_regions(card, cs)) {
 652                 return (0);
 653         }
 654         if (reset_gazel(cs)) {
 655                 printk(KERN_WARNING "Gazel: wrong IRQ\n");
 656                 release_io_gazel(cs);
 657                 return (0);
 658         }
 659         cs->readisac = &ReadISAC;
 660         cs->writeisac = &WriteISAC;
 661         cs->readisacfifo = &ReadISACfifo;
 662         cs->writeisacfifo = &WriteISACfifo;
 663         cs->BC_Read_Reg = &ReadHSCX;
 664         cs->BC_Write_Reg = &WriteHSCX;
 665         cs->BC_Send_Data = &hscx_fill_fifo;
 666         cs->cardmsg = &Gazel_card_msg;
 667
 668         switch (cs->subtyp) {
 669                 case R647:
 670                 case R685:
 671                         cs->irq_func = &gazel_interrupt;
 672                         ISACVersion(cs, "Gazel:");
 673                         if (HscxVersion(cs, "Gazel:")) {
 674                                 printk(KERN_WARNING
 675                                        "Gazel: wrong HSCX versions check IO address\n");
 676                                 release_io_gazel(cs);
 677                                 return (0);
 678                         }
 679                         break;
 680                 case R742:
 681                 case R753:
 682                         cs->irq_func = &gazel_interrupt_ipac;
 683                         val = ReadISAC(cs, IPAC_ID - 0x80);
 684                         printk(KERN_INFO "Gazel: IPAC version %x\n", val);
 685                         break;
 686         }
 687
 688         return (1);
 689 }