1/* $Id: gazel.c,v 1.1.1.1 2007/08/03 18:52:35 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 22extern const char *CardType[]; 23static const char *gazel_revision = "$Revision: 1.1.1.1 $"; 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 45static inline u_char 46readreg(unsigned int adr, u_short off) 47{ 48 return bytein(adr + off); 49} 50 51static inline void 52writereg(unsigned int adr, u_short off, u_char data) 53{ 54 byteout(adr + off, data); 55} 56 57 58static inline void 59read_fifo(unsigned int adr, u_char * data, int size) 60{ 61 insb(adr, data, size); 62} 63 64static void 65write_fifo(unsigned int adr, u_char * data, int size) 66{ 67 outsb(adr, data, size); 68} 69 70static inline u_char 71readreg_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 80static inline void 81writereg_ipac(unsigned int adr, u_short off, u_char data) 82{ 83 byteout(adr, off); 84 byteout(adr + 4, data); 85} 86 87 88static inline void 89read_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 95static void 96write_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 104static u_char 105ReadISAC(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 121static void 122WriteISAC(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 139static void 140ReadISACfifo(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 154static void 155WriteISACfifo(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 169static void 170ReadHSCXfifo(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 184static void 185WriteHSCXfifo(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 199static u_char 200ReadHSCX(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 216static void 217WriteHSCX(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 245static irqreturn_t 246gazel_interrupt(int intno, void *dev_id) 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 276static irqreturn_t 277gazel_interrupt_ipac(int intno, void *dev_id) 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 320static void 321release_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 348static int 349reset_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 401static int 402Gazel_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 433static int 434reserve_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 487static int __devinit 488setup_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 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 = 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 624int __devinit 625setup_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} 690