linux/drivers/isdn/hisax/gazel.c
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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
  22static 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
  44static inline u_char
  45readreg(unsigned int adr, u_short off)
  46{
  47        return bytein(adr + off);
  48}
  49
  50static inline void
  51writereg(unsigned int adr, u_short off, u_char data)
  52{
  53        byteout(adr + off, data);
  54}
  55
  56
  57static inline void
  58read_fifo(unsigned int adr, u_char * data, int size)
  59{
  60        insb(adr, data, size);
  61}
  62
  63static void
  64write_fifo(unsigned int adr, u_char * data, int size)
  65{
  66        outsb(adr, data, size);
  67}
  68
  69static inline u_char
  70readreg_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
  79static inline void
  80writereg_ipac(unsigned int adr, u_short off, u_char data)
  81{
  82        byteout(adr, off);
  83        byteout(adr + 4, data);
  84}
  85
  86
  87static inline void
  88read_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
  94static void
  95write_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
 103static u_char
 104ReadISAC(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
 120static void
 121WriteISAC(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
 138static void
 139ReadISACfifo(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
 153static void
 154WriteISACfifo(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
 168static void
 169ReadHSCXfifo(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
 183static void
 184WriteHSCXfifo(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
 198static u_char
 199ReadHSCX(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
 215static void
 216WriteHSCX(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
 244static irqreturn_t
 245gazel_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
 275static irqreturn_t
 276gazel_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
 319static void
 320release_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
 347static int
 348reset_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
 400static int
 401Gazel_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
 432static int
 433reserve_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
 486static int __devinit
 487setup_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
 535static struct pci_dev *dev_tel __devinitdata = NULL;
 536
 537static int __devinit
 538setup_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 = hisax_find_pci_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 */
 624
 625int __devinit
 626setup_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}
 691
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