drivers/isdn/hisax/gazel.c

   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 static const char *gazel_revision = "$Revision: 2.19.2.4 $";
  23
  24 #define R647      1
  25 #define R685      2
  26 #define R753      3
  27 #define R742      4
  28
  29 #define PLX_CNTRL    0x50       /* registre de controle PLX */
  30 #define RESET_GAZEL  0x4
  31 #define RESET_9050   0x40000000
  32 #define PLX_INCSR    0x4C       /* registre d'IT du 9050 */
  33 #define INT_ISAC_EN  0x8        /* 1 = enable IT isac */
  34 #define INT_ISAC     0x20       /* 1 = IT isac en cours */
  35 #define INT_HSCX_EN  0x1        /* 1 = enable IT hscx */
  36 #define INT_HSCX     0x4        /* 1 = IT hscx en cours */
  37 #define INT_PCI_EN   0x40       /* 1 = enable IT PCI */
  38 #define INT_IPAC_EN  0x3        /* enable IT ipac */
  39
  40
  41 #define byteout(addr,val) outb(val,addr)
  42 #define bytein(addr) inb(addr)
  43
  44 static inline u_char
  45 readreg(unsigned int adr, u_short off)
  46 {
  47         return bytein(adr + off);
  48 }
  49
  50 static inline void
  51 writereg(unsigned int adr, u_short off, u_char data)
  52 {
  53         byteout(adr + off, data);
  54 }
  55
  56
  57 static inline void
  58 read_fifo(unsigned int adr, u_char * data, int size)
  59 {
  60         insb(adr, data, size);
  61 }
  62
  63 static void
  64 write_fifo(unsigned int adr, u_char * data, int size)
  65 {
  66         outsb(adr, data, size);
  67 }
  68
  69 static inline u_char
  70 readreg_ipac(unsigned int adr, u_short off)
  71 {
  72         register u_char ret;
  73
  74         byteout(adr, off);
  75         ret = bytein(adr + 4);
  76         return ret;
  77 }
  78
  79 static inline void
  80 writereg_ipac(unsigned int adr, u_short off, u_char data)
  81 {
  82         byteout(adr, off);
  83         byteout(adr + 4, data);
  84 }
  85
  86
  87 static inline void
  88 read_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size)
  89 {
  90         byteout(adr, off);
  91         insb(adr + 4, data, size);
  92 }
  93
  94 static void
  95 write_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size)
  96 {
  97         byteout(adr, off);
  98         outsb(adr + 4, data, size);
  99 }
 100
 101 /* Interface functions */
 102
 103 static u_char
 104 ReadISAC(struct IsdnCardState *cs, u_char offset)
 105 {
 106         u_short off2 = offset;
 107
 108         switch (cs->subtyp) {
 109                 case R647:
 110                         off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
 111                 case R685:
 112                         return (readreg(cs->hw.gazel.isac, off2));
 113                 case R753:
 114                 case R742:
 115                         return (readreg_ipac(cs->hw.gazel.ipac, 0x80 + off2));
 116         }
 117         return 0;
 118 }
 119
 120 static void
 121 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
 122 {
 123         u_short off2 = offset;
 124
 125         switch (cs->subtyp) {
 126                 case R647:
 127                         off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
 128                 case R685:
 129                         writereg(cs->hw.gazel.isac, off2, value);
 130                         break;
 131                 case R753:
 132                 case R742:
 133                         writereg_ipac(cs->hw.gazel.ipac, 0x80 + off2, value);
 134                         break;
 135         }
 136 }
 137
 138 static void
 139 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
 140 {
 141         switch (cs->subtyp) {
 142                 case R647:
 143                 case R685:
 144                         read_fifo(cs->hw.gazel.isacfifo, data, size);
 145                         break;
 146                 case R753:
 147                 case R742:
 148                         read_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
 149                         break;
 150         }
 151 }
 152
 153 static void
 154 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
 155 {
 156         switch (cs->subtyp) {
 157                 case R647:
 158                 case R685:
 159                         write_fifo(cs->hw.gazel.isacfifo, data, size);
 160                         break;
 161                 case R753:
 162                 case R742:
 163                         write_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
 164                         break;
 165         }
 166 }
 167
 168 static void
 169 ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
 170 {
 171         switch (cs->subtyp) {
 172                 case R647:
 173                 case R685:
 174                         read_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
 175                         break;
 176                 case R753:
 177                 case R742:
 178                         read_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
 179                         break;
 180         }
 181 }
 182
 183 static void
 184 WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
 185 {
 186         switch (cs->subtyp) {
 187                 case R647:
 188                 case R685:
 189                         write_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
 190                         break;
 191                 case R753:
 192                 case R742:
 193                         write_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
 194                         break;
 195         }
 196 }
 197
 198 static u_char
 199 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
 200 {
 201         u_short off2 = offset;
 202
 203         switch (cs->subtyp) {
 204                 case R647:
 205                         off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
 206                 case R685:
 207                         return (readreg(cs->hw.gazel.hscx[hscx], off2));
 208                 case R753:
 209                 case R742:
 210                         return (readreg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2));
 211         }
 212         return 0;
 213 }
 214
 215 static void
 216 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
 217 {
 218         u_short off2 = offset;
 219
 220         switch (cs->subtyp) {
 221                 case R647:
 222                         off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
 223                 case R685:
 224                         writereg(cs->hw.gazel.hscx[hscx], off2, value);
 225                         break;
 226                 case R753:
 227                 case R742:
 228                         writereg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2, value);
 229                         break;
 230         }
 231 }
 232
 233 /*
 234  * fast interrupt HSCX stuff goes here
 235  */
 236
 237 #define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg)
 238 #define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data)
 239 #define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt)
 240 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt)
 241
 242 #include "hscx_irq.c"
 243
 244 static irqreturn_t
 245 gazel_interrupt(int intno, void *dev_id)
 246 {
 247 #define MAXCOUNT 5
 248         struct IsdnCardState *cs = dev_id;
 249         u_char valisac, valhscx;
 250         int count = 0;
 251         u_long flags;
 252
 253         spin_lock_irqsave(&cs->lock, flags);
 254         do {
 255                 valhscx = ReadHSCX(cs, 1, HSCX_ISTA);
 256                 if (valhscx)
 257                         hscx_int_main(cs, valhscx);
 258                 valisac = ReadISAC(cs, ISAC_ISTA);
 259                 if (valisac)
 260                         isac_interrupt(cs, valisac);
 261                 count++;
 262         } while ((valhscx || valisac) && (count < MAXCOUNT));
 263
 264         WriteHSCX(cs, 0, HSCX_MASK, 0xFF);
 265         WriteHSCX(cs, 1, HSCX_MASK, 0xFF);
 266         WriteISAC(cs, ISAC_MASK, 0xFF);
 267         WriteISAC(cs, ISAC_MASK, 0x0);
 268         WriteHSCX(cs, 0, HSCX_MASK, 0x0);
 269         WriteHSCX(cs, 1, HSCX_MASK, 0x0);
 270         spin_unlock_irqrestore(&cs->lock, flags);
 271         return IRQ_HANDLED;
 272 }
 273
 274
 275 static irqreturn_t
 276 gazel_interrupt_ipac(int intno, void *dev_id)
 277 {
 278         struct IsdnCardState *cs = dev_id;
 279         u_char ista, val;
 280         int count = 0;
 281         u_long flags;
 282
 283         spin_lock_irqsave(&cs->lock, flags);
 284         ista = ReadISAC(cs, IPAC_ISTA - 0x80);
 285         do {
 286                 if (ista & 0x0f) {
 287                         val = ReadHSCX(cs, 1, HSCX_ISTA);
 288                         if (ista & 0x01)
 289                                 val |= 0x01;
 290                         if (ista & 0x04)
 291                                 val |= 0x02;
 292                         if (ista & 0x08)
 293                                 val |= 0x04;
 294                         if (val) {
 295                                 hscx_int_main(cs, val);
 296                         }
 297                 }
 298                 if (ista & 0x20) {
 299                         val = 0xfe & ReadISAC(cs, ISAC_ISTA);
 300                         if (val) {
 301                                 isac_interrupt(cs, val);
 302                         }
 303                 }
 304                 if (ista & 0x10) {
 305                         val = 0x01;
 306                         isac_interrupt(cs, val);
 307                 }
 308                 ista = ReadISAC(cs, IPAC_ISTA - 0x80);
 309                 count++;
 310         }
 311         while ((ista & 0x3f) && (count < MAXCOUNT));
 312
 313         WriteISAC(cs, IPAC_MASK - 0x80, 0xFF);
 314         WriteISAC(cs, IPAC_MASK - 0x80, 0xC0);
 315         spin_unlock_irqrestore(&cs->lock, flags);
 316         return IRQ_HANDLED;
 317 }
 318
 319 static void
 320 release_io_gazel(struct IsdnCardState *cs)
 321 {
 322         unsigned int i;
 323
 324         switch (cs->subtyp) {
 325                 case R647:
 326                         for (i = 0x0000; i < 0xC000; i += 0x1000)
 327                                 release_region(i + cs->hw.gazel.hscx[0], 16);
 328                         release_region(0xC000 + cs->hw.gazel.hscx[0], 1);
 329                         break;
 330
 331                 case R685:
 332                         release_region(cs->hw.gazel.hscx[0], 0x100);
 333                         release_region(cs->hw.gazel.cfg_reg, 0x80);
 334                         break;
 335
 336                 case R753:
 337                         release_region(cs->hw.gazel.ipac, 0x8);
 338                         release_region(cs->hw.gazel.cfg_reg, 0x80);
 339                         break;
 340
 341                 case R742:
 342                         release_region(cs->hw.gazel.ipac, 8);
 343                         break;
 344         }
 345 }
 346
 347 static int
 348 reset_gazel(struct IsdnCardState *cs)
 349 {
 350         unsigned long plxcntrl, addr = cs->hw.gazel.cfg_reg;
 351
 352         switch (cs->subtyp) {
 353                 case R647:
 354                         writereg(addr, 0, 0);
 355                         HZDELAY(10);
 356                         writereg(addr, 0, 1);
 357                         HZDELAY(2);
 358                         break;
 359                 case R685:
 360                         plxcntrl = inl(addr + PLX_CNTRL);
 361                         plxcntrl |= (RESET_9050 + RESET_GAZEL);
 362                         outl(plxcntrl, addr + PLX_CNTRL);
 363                         plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
 364                         HZDELAY(4);
 365                         outl(plxcntrl, addr + PLX_CNTRL);
 366                         HZDELAY(10);
 367                         outb(INT_ISAC_EN + INT_HSCX_EN + INT_PCI_EN, addr + PLX_INCSR);
 368                         break;
 369                 case R753:
 370                         plxcntrl = inl(addr + PLX_CNTRL);
 371                         plxcntrl |= (RESET_9050 + RESET_GAZEL);
 372                         outl(plxcntrl, addr + PLX_CNTRL);
 373                         plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
 374                         WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
 375                         HZDELAY(4);
 376                         outl(plxcntrl, addr + PLX_CNTRL);
 377                         HZDELAY(10);
 378                         WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
 379                         WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
 380                         WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
 381                         WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
 382                         WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
 383                         outb(INT_IPAC_EN + INT_PCI_EN, addr + PLX_INCSR);
 384                         WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
 385                         break;
 386                 case R742:
 387                         WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
 388                         HZDELAY(4);
 389                         WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
 390                         WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
 391                         WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
 392                         WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
 393                         WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
 394                         WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
 395                         break;
 396         }
 397         return (0);
 398 }
 399
 400 static int
 401 Gazel_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 402 {
 403         u_long flags;
 404
 405         switch (mt) {
 406                 case CARD_RESET:
 407                         spin_lock_irqsave(&cs->lock, flags);
 408                         reset_gazel(cs);
 409                         spin_unlock_irqrestore(&cs->lock, flags);
 410                         return (0);
 411                 case CARD_RELEASE:
 412                         release_io_gazel(cs);
 413                         return (0);
 414                 case CARD_INIT:
 415                         spin_lock_irqsave(&cs->lock, flags);
 416                         inithscxisac(cs, 1);
 417                         if ((cs->subtyp==R647)||(cs->subtyp==R685)) {
 418                                 int i;
 419                                 for (i=0;i<(2+MAX_WAITING_CALLS);i++) {
 420                                         cs->bcs[i].hw.hscx.tsaxr0 = 0x1f;
 421                                         cs->bcs[i].hw.hscx.tsaxr1 = 0x23;
 422                                 }
 423                         }
 424                         spin_unlock_irqrestore(&cs->lock, flags);
 425                         return (0);
 426                 case CARD_TEST:
 427                         return (0);
 428         }
 429         return (0);
 430 }
 431
 432 static int
 433 reserve_regions(struct IsdnCard *card, struct IsdnCardState *cs)
 434 {
 435         unsigned int i, j, base = 0, adr = 0, len = 0;
 436
 437         switch (cs->subtyp) {
 438                 case R647:
 439                         base = cs->hw.gazel.hscx[0];
 440                         if (!request_region(adr = (0xC000 + base), len = 1, "gazel"))
 441                                 goto error;
 442                         for (i = 0x0000; i < 0xC000; i += 0x1000) {
 443                                 if (!request_region(adr = (i + base), len = 16, "gazel"))
 444                                         goto error;
 445                         }
 446                         if (i != 0xC000) {
 447                                 for (j = 0; j < i; j+= 0x1000)
 448                                         release_region(j + base, 16);
 449                                 release_region(0xC000 + base, 1);
 450                                 goto error;
 451                         }
 452                         break;
 453
 454                 case R685:
 455                         if (!request_region(adr = cs->hw.gazel.hscx[0], len = 0x100, "gazel"))
 456                                 goto error;
 457                         if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) {
 458                                 release_region(cs->hw.gazel.hscx[0],0x100);
 459                                 goto error;
 460                         }
 461                         break;
 462
 463                 case R753:
 464                         if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel"))
 465                                 goto error;
 466                         if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) {
 467                                 release_region(cs->hw.gazel.ipac, 8);
 468                                 goto error;
 469                         }
 470                         break;
 471
 472                 case R742:
 473                         if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel"))
 474                                 goto error;
 475                         break;
 476         }
 477
 478         return 0;
 479
 480       error:
 481         printk(KERN_WARNING "Gazel: io ports 0x%x-0x%x already in use\n",
 482                adr, adr + len);
 483         return 1;
 484 }
 485
 486 static int __devinit
 487 setup_gazelisa(struct IsdnCard *card, struct IsdnCardState *cs)
 488 {
 489         printk(KERN_INFO "Gazel: ISA PnP card automatic recognition\n");
 490         // we got an irq parameter, assume it is an ISA card
 491         // R742 decodes address even in not started...
 492         // R647 returns FF if not present or not started
 493         // eventually needs improvment
 494         if (readreg_ipac(card->para[1], IPAC_ID) == 1)
 495                 cs->subtyp = R742;
 496         else
 497                 cs->subtyp = R647;
 498
 499         setup_isac(cs);
 500         cs->hw.gazel.cfg_reg = card->para[1] + 0xC000;
 501         cs->hw.gazel.ipac = card->para[1];
 502         cs->hw.gazel.isac = card->para[1] + 0x8000;
 503         cs->hw.gazel.hscx[0] = card->para[1];
 504         cs->hw.gazel.hscx[1] = card->para[1] + 0x4000;
 505         cs->irq = card->para[0];
 506         cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
 507         cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
 508         cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
 509
 510         switch (cs->subtyp) {
 511                 case R647:
 512                         printk(KERN_INFO "Gazel: Card ISA R647/R648 found\n");
 513                         cs->dc.isac.adf2 = 0x87;
 514                         printk(KERN_INFO
 515                                 "Gazel: config irq:%d isac:0x%X  cfg:0x%X\n",
 516                                 cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
 517                         printk(KERN_INFO
 518                                 "Gazel: hscx A:0x%X  hscx B:0x%X\n",
 519                                 cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
 520
 521                         break;
 522                 case R742:
 523                         printk(KERN_INFO "Gazel: Card ISA R742 found\n");
 524                         test_and_set_bit(HW_IPAC, &cs->HW_Flags);
 525                         printk(KERN_INFO
 526                                "Gazel: config irq:%d ipac:0x%X\n",
 527                                cs->irq, cs->hw.gazel.ipac);
 528                         break;
 529         }
 530
 531         return (0);
 532 }
 533
 534 #ifdef CONFIG_PCI_LEGACY
 535 static struct pci_dev *dev_tel __devinitdata = NULL;
 536
 537 static int __devinit
 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 |= IRQF_SHARED;
 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 #endif /* CONFIG_PCI_LEGACY */
 624
 625 int __devinit
 626 setup_gazel(struct IsdnCard *card)
 627 {
 628         struct IsdnCardState *cs = card->cs;
 629         char tmp[64];
 630         u_char val;
 631
 632         strcpy(tmp, gazel_revision);
 633         printk(KERN_INFO "Gazel: Driver Revision %s\n", HiSax_getrev(tmp));
 634
 635         if (cs->typ != ISDN_CTYPE_GAZEL)
 636                 return (0);
 637
 638         if (card->para[0]) {
 639                 if (setup_gazelisa(card, cs))
 640                         return (0);
 641         } else {
 642
 643 #ifdef CONFIG_PCI_LEGACY
 644                 if (setup_gazelpci(cs))
 645                         return (0);
 646 #else
 647                 printk(KERN_WARNING "Gazel: Card PCI requested and NO_PCI_BIOS, unable to config\n");
 648                 return (0);
 649 #endif                          /* CONFIG_PCI */
 650         }
 651
 652         if (reserve_regions(card, cs)) {
 653                 return (0);
 654         }
 655         if (reset_gazel(cs)) {
 656                 printk(KERN_WARNING "Gazel: wrong IRQ\n");
 657                 release_io_gazel(cs);
 658                 return (0);
 659         }
 660         cs->readisac = &ReadISAC;
 661         cs->writeisac = &WriteISAC;
 662         cs->readisacfifo = &ReadISACfifo;
 663         cs->writeisacfifo = &WriteISACfifo;
 664         cs->BC_Read_Reg = &ReadHSCX;
 665         cs->BC_Write_Reg = &WriteHSCX;
 666         cs->BC_Send_Data = &hscx_fill_fifo;
 667         cs->cardmsg = &Gazel_card_msg;
 668
 669         switch (cs->subtyp) {
 670                 case R647:
 671                 case R685:
 672                         cs->irq_func = &gazel_interrupt;
 673                         ISACVersion(cs, "Gazel:");
 674                         if (HscxVersion(cs, "Gazel:")) {
 675                                 printk(KERN_WARNING
 676                                        "Gazel: wrong HSCX versions check IO address\n");
 677                                 release_io_gazel(cs);
 678                                 return (0);
 679                         }
 680                         break;
 681                 case R742:
 682                 case R753:
 683                         cs->irq_func = &gazel_interrupt_ipac;
 684                         val = ReadISAC(cs, IPAC_ID - 0x80);
 685                         printk(KERN_INFO "Gazel: IPAC version %x\n", val);
 686                         break;
 687         }
 688
 689         return (1);
 690 }