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