File: /usr/src/linux/drivers/isdn/hisax/gazel.c
1 /* $Id: gazel.c,v 2.11.6.6 2001/06/08 08:48:46 kai Exp $
2 *
3 * gazel.c low level stuff for Gazel isdn cards
4 *
5 * Author BeWan Systems
6 * based on source code from Karsten Keil
7 *
8 * This file is (c) under GNU General Public License
9 *
10 */
11 #include <linux/config.h>
12 #include <linux/init.h>
13 #define __NO_VERSION__
14 #include "hisax.h"
15 #include "isac.h"
16 #include "hscx.h"
17 #include "isdnl1.h"
18 #include "ipac.h"
19 #include <linux/pci.h>
20
21 extern const char *CardType[];
22 const char *gazel_revision = "$Revision: 2.11.6.6 $";
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 long flags;
74
75 save_flags(flags);
76 cli();
77 byteout(adr, off);
78 ret = bytein(adr + 4);
79 restore_flags(flags);
80 return ret;
81 }
82
83 static inline void
84 writereg_ipac(unsigned int adr, u_short off, u_char data)
85 {
86 long flags;
87
88 save_flags(flags);
89 cli();
90 byteout(adr, off);
91 byteout(adr + 4, data);
92 restore_flags(flags);
93 }
94
95
96 static inline void
97 read_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size)
98 {
99 byteout(adr, off);
100 insb(adr + 4, data, size);
101 }
102
103 static void
104 write_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size)
105 {
106 byteout(adr, off);
107 outsb(adr + 4, data, size);
108 }
109
110 /* Interface functions */
111
112 static u_char
113 ReadISAC(struct IsdnCardState *cs, u_char offset)
114 {
115 u_short off2 = offset;
116
117 switch (cs->subtyp) {
118 case R647:
119 off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
120 case R685:
121 return (readreg(cs->hw.gazel.isac, off2));
122 case R753:
123 case R742:
124 return (readreg_ipac(cs->hw.gazel.ipac, 0x80 + off2));
125 }
126 return 0;
127 }
128
129 static void
130 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
131 {
132 u_short off2 = offset;
133
134 switch (cs->subtyp) {
135 case R647:
136 off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
137 case R685:
138 writereg(cs->hw.gazel.isac, off2, value);
139 break;
140 case R753:
141 case R742:
142 writereg_ipac(cs->hw.gazel.ipac, 0x80 + off2, value);
143 break;
144 }
145 }
146
147 static void
148 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
149 {
150 switch (cs->subtyp) {
151 case R647:
152 case R685:
153 read_fifo(cs->hw.gazel.isacfifo, data, size);
154 break;
155 case R753:
156 case R742:
157 read_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
158 break;
159 }
160 }
161
162 static void
163 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
164 {
165 switch (cs->subtyp) {
166 case R647:
167 case R685:
168 write_fifo(cs->hw.gazel.isacfifo, data, size);
169 break;
170 case R753:
171 case R742:
172 write_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
173 break;
174 }
175 }
176
177 static void
178 ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
179 {
180 switch (cs->subtyp) {
181 case R647:
182 case R685:
183 read_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
184 break;
185 case R753:
186 case R742:
187 read_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
188 break;
189 }
190 }
191
192 static void
193 WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
194 {
195 switch (cs->subtyp) {
196 case R647:
197 case R685:
198 write_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
199 break;
200 case R753:
201 case R742:
202 write_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
203 break;
204 }
205 }
206
207 static u_char
208 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
209 {
210 u_short off2 = offset;
211
212 switch (cs->subtyp) {
213 case R647:
214 off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
215 case R685:
216 return (readreg(cs->hw.gazel.hscx[hscx], off2));
217 case R753:
218 case R742:
219 return (readreg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2));
220 }
221 return 0;
222 }
223
224 static void
225 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
226 {
227 u_short off2 = offset;
228
229 switch (cs->subtyp) {
230 case R647:
231 off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
232 case R685:
233 writereg(cs->hw.gazel.hscx[hscx], off2, value);
234 break;
235 case R753:
236 case R742:
237 writereg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2, value);
238 break;
239 }
240 }
241
242 /*
243 * fast interrupt HSCX stuff goes here
244 */
245
246 #define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg)
247 #define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data)
248 #define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt)
249 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt)
250
251 #include "hscx_irq.c"
252
253 static void
254 gazel_interrupt(int intno, void *dev_id, struct pt_regs *regs)
255 {
256 #define MAXCOUNT 5
257 struct IsdnCardState *cs = dev_id;
258 u_char valisac, valhscx;
259 int count = 0;
260
261 if (!cs) {
262 printk(KERN_WARNING "Gazel: Spurious interrupt!\n");
263 return;
264 }
265 do {
266 valhscx = ReadHSCX(cs, 1, HSCX_ISTA);
267 if (valhscx)
268 hscx_int_main(cs, valhscx);
269 valisac = ReadISAC(cs, ISAC_ISTA);
270 if (valisac)
271 isac_interrupt(cs, valisac);
272 count++;
273 } while ((valhscx || valisac) && (count < MAXCOUNT));
274
275 WriteHSCX(cs, 0, HSCX_MASK, 0xFF);
276 WriteHSCX(cs, 1, HSCX_MASK, 0xFF);
277 WriteISAC(cs, ISAC_MASK, 0xFF);
278 WriteISAC(cs, ISAC_MASK, 0x0);
279 WriteHSCX(cs, 0, HSCX_MASK, 0x0);
280 WriteHSCX(cs, 1, HSCX_MASK, 0x0);
281 }
282
283
284 static void
285 gazel_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
286 {
287 struct IsdnCardState *cs = dev_id;
288 u_char ista, val;
289 int count = 0;
290
291 if (!cs) {
292 printk(KERN_WARNING "Gazel: Spurious interrupt!\n");
293 return;
294 }
295 ista = ReadISAC(cs, IPAC_ISTA - 0x80);
296 do {
297 if (ista & 0x0f) {
298 val = ReadHSCX(cs, 1, HSCX_ISTA);
299 if (ista & 0x01)
300 val |= 0x01;
301 if (ista & 0x04)
302 val |= 0x02;
303 if (ista & 0x08)
304 val |= 0x04;
305 if (val) {
306 hscx_int_main(cs, val);
307 }
308 }
309 if (ista & 0x20) {
310 val = 0xfe & ReadISAC(cs, ISAC_ISTA);
311 if (val) {
312 isac_interrupt(cs, val);
313 }
314 }
315 if (ista & 0x10) {
316 val = 0x01;
317 isac_interrupt(cs, val);
318 }
319 ista = ReadISAC(cs, IPAC_ISTA - 0x80);
320 count++;
321 }
322 while ((ista & 0x3f) && (count < MAXCOUNT));
323
324 WriteISAC(cs, IPAC_MASK - 0x80, 0xFF);
325 WriteISAC(cs, IPAC_MASK - 0x80, 0xC0);
326 }
327 void
328 release_io_gazel(struct IsdnCardState *cs)
329 {
330 unsigned int i;
331
332 switch (cs->subtyp) {
333 case R647:
334 for (i = 0x0000; i < 0xC000; i += 0x1000)
335 release_region(i + cs->hw.gazel.hscx[0], 16);
336 release_region(0xC000 + cs->hw.gazel.hscx[0], 1);
337 break;
338
339 case R685:
340 release_region(cs->hw.gazel.hscx[0], 0x100);
341 release_region(cs->hw.gazel.cfg_reg, 0x80);
342 break;
343
344 case R753:
345 release_region(cs->hw.gazel.ipac, 0x8);
346 release_region(cs->hw.gazel.cfg_reg, 0x80);
347 break;
348
349 case R742:
350 release_region(cs->hw.gazel.ipac, 8);
351 break;
352 }
353 }
354
355 static int
356 reset_gazel(struct IsdnCardState *cs)
357 {
358 long flags;
359 unsigned long plxcntrl, addr = cs->hw.gazel.cfg_reg;
360
361 switch (cs->subtyp) {
362 case R647:
363 save_flags(flags);
364 cli();
365 writereg(addr, 0, 0);
366 HZDELAY(10);
367 writereg(addr, 0, 1);
368 HZDELAY(2);
369 restore_flags(flags);
370 break;
371 case R685:
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 HZDELAY(4);
377 outl(plxcntrl, addr + PLX_CNTRL);
378 HZDELAY(10);
379 outb(INT_ISAC_EN + INT_HSCX_EN + INT_PCI_EN, addr + PLX_INCSR);
380 break;
381 case R753:
382 plxcntrl = inl(addr + PLX_CNTRL);
383 plxcntrl |= (RESET_9050 + RESET_GAZEL);
384 outl(plxcntrl, addr + PLX_CNTRL);
385 plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
386 WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
387 HZDELAY(4);
388 outl(plxcntrl, addr + PLX_CNTRL);
389 HZDELAY(10);
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 outb(INT_IPAC_EN + INT_PCI_EN, addr + PLX_INCSR);
396 WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
397 break;
398 case R742:
399 WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
400 HZDELAY(4);
401 WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
402 WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
403 WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
404 WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
405 WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
406 WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
407 break;
408 }
409 return (0);
410 }
411
412 static int
413 Gazel_card_msg(struct IsdnCardState *cs, int mt, void *arg)
414 {
415 switch (mt) {
416 case CARD_RESET:
417 reset_gazel(cs);
418 return (0);
419 case CARD_RELEASE:
420 release_io_gazel(cs);
421 return (0);
422 case CARD_INIT:
423 inithscxisac(cs, 1);
424 if ((cs->subtyp==R647)||(cs->subtyp==R685)) {
425 int i;
426 for (i=0;i<(2+MAX_WAITING_CALLS);i++) {
427 cs->bcs[i].hw.hscx.tsaxr0 = 0x1f;
428 cs->bcs[i].hw.hscx.tsaxr1 = 0x23;
429 }
430 }
431 return (0);
432 case CARD_TEST:
433 return (0);
434 }
435 return (0);
436 }
437
438 static int
439 reserve_regions(struct IsdnCard *card, struct IsdnCardState *cs)
440 {
441 unsigned int i, base = 0, adr = 0, len = 0;
442
443 switch (cs->subtyp) {
444 case R647:
445 base = cs->hw.gazel.hscx[0];
446 for (i = 0x0000; i < 0xC000; i += 0x1000) {
447 if (check_region(adr = (i + base), len = 16))
448 goto error;
449 }
450 if (check_region(adr = (0xC000 + base), len = 1))
451 goto error;
452
453 for (i = 0x0000; i < 0xC000; i += 0x1000)
454 request_region(i + base, 16, "gazel");
455 request_region(0xC000 + base, 1, "gazel");
456
457 break;
458
459 case R685:
460 if (check_region(adr = cs->hw.gazel.hscx[0], len = 0x100))
461 goto error;
462 if (check_region(adr = cs->hw.gazel.cfg_reg, len = 0x80))
463 goto error;
464
465 request_region(cs->hw.gazel.hscx[0], 0x100, "gazel");
466 request_region(cs->hw.gazel.cfg_reg, 0x80, "gazel");
467 break;
468
469 case R753:
470 if (check_region(adr = cs->hw.gazel.ipac, len = 0x8))
471 goto error;
472 if (check_region(adr = cs->hw.gazel.cfg_reg, len = 0x80))
473 goto error;
474
475 request_region(cs->hw.gazel.ipac, 0x8, "gazel");
476 request_region(cs->hw.gazel.cfg_reg, 0x80, "gazel");
477 break;
478
479 case R742:
480 if (check_region(adr = cs->hw.gazel.ipac, len = 0x8))
481 goto error;
482 request_region(cs->hw.gazel.ipac, 0x8, "gazel");
483 break;
484 }
485
486 return 0;
487
488 error:
489 printk(KERN_WARNING "Gazel: %s io ports 0x%x-0x%x already in use\n",
490 CardType[cs->typ], adr, adr + len);
491 return 1;
492 }
493
494 static int __init
495 setup_gazelisa(struct IsdnCard *card, struct IsdnCardState *cs)
496 {
497 printk(KERN_INFO "Gazel: ISA PnP card automatic recognition\n");
498 // we got an irq parameter, assume it is an ISA card
499 // R742 decodes address even in not started...
500 // R647 returns FF if not present or not started
501 // eventually needs improvment
502 if (readreg_ipac(card->para[1], IPAC_ID) == 1)
503 cs->subtyp = R742;
504 else
505 cs->subtyp = R647;
506
507 cs->hw.gazel.cfg_reg = card->para[1] + 0xC000;
508 cs->hw.gazel.ipac = card->para[1];
509 cs->hw.gazel.isac = card->para[1] + 0x8000;
510 cs->hw.gazel.hscx[0] = card->para[1];
511 cs->hw.gazel.hscx[1] = card->para[1] + 0x4000;
512 cs->irq = card->para[0];
513 cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
514 cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
515 cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
516
517 switch (cs->subtyp) {
518 case R647:
519 printk(KERN_INFO "Gazel: Card ISA R647/R648 found\n");
520 cs->dc.isac.adf2 = 0x87;
521 printk(KERN_INFO
522 "Gazel: config irq:%d isac:0x%X cfg:0x%X\n",
523 cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
524 printk(KERN_INFO
525 "Gazel: hscx A:0x%X hscx B:0x%X\n",
526 cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
527
528 break;
529 case R742:
530 printk(KERN_INFO "Gazel: Card ISA R742 found\n");
531 test_and_set_bit(HW_IPAC, &cs->HW_Flags);
532 printk(KERN_INFO
533 "Gazel: config irq:%d ipac:0x%X\n",
534 cs->irq, cs->hw.gazel.ipac);
535 break;
536 }
537
538 return (0);
539 }
540
541 static struct pci_dev *dev_tel __initdata = NULL;
542
543 static int __init
544 setup_gazelpci(struct IsdnCardState *cs)
545 {
546 u_int pci_ioaddr0 = 0, pci_ioaddr1 = 0;
547 u_char pci_irq = 0, found;
548 u_int nbseek, seekcard;
549
550 printk(KERN_WARNING "Gazel: PCI card automatic recognition\n");
551
552 found = 0;
553 if (!pci_present()) {
554 printk(KERN_WARNING "Gazel: No PCI bus present\n");
555 return 1;
556 }
557 seekcard = PCI_DEVICE_ID_PLX_R685;
558 for (nbseek = 0; nbseek < 3; nbseek++) {
559 if ((dev_tel = pci_find_device(PCI_VENDOR_ID_PLX, seekcard, dev_tel))) {
560 if (pci_enable_device(dev_tel))
561 return 1;
562 pci_irq = dev_tel->irq;
563 pci_ioaddr0 = pci_resource_start(dev_tel, 1);
564 pci_ioaddr1 = pci_resource_start(dev_tel, 2);
565 found = 1;
566 }
567 if (found)
568 break;
569 else {
570 switch (seekcard) {
571 case PCI_DEVICE_ID_PLX_R685:
572 seekcard = PCI_DEVICE_ID_PLX_R753;
573 break;
574 case PCI_DEVICE_ID_PLX_R753:
575 seekcard = PCI_DEVICE_ID_PLX_DJINN_ITOO;
576 break;
577 }
578 }
579 }
580 if (!found) {
581 printk(KERN_WARNING "Gazel: No PCI card found\n");
582 return (1);
583 }
584 if (!pci_irq) {
585 printk(KERN_WARNING "Gazel: No IRQ for PCI card found\n");
586 return 1;
587 }
588 cs->hw.gazel.pciaddr[0] = pci_ioaddr0;
589 cs->hw.gazel.pciaddr[1] = pci_ioaddr1;
590
591 pci_ioaddr1 &= 0xfffe;
592 cs->hw.gazel.cfg_reg = pci_ioaddr0 & 0xfffe;
593 cs->hw.gazel.ipac = pci_ioaddr1;
594 cs->hw.gazel.isac = pci_ioaddr1 + 0x80;
595 cs->hw.gazel.hscx[0] = pci_ioaddr1;
596 cs->hw.gazel.hscx[1] = pci_ioaddr1 + 0x40;
597 cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
598 cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
599 cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
600 cs->irq = pci_irq;
601 cs->irq_flags |= SA_SHIRQ;
602
603 switch (seekcard) {
604 case PCI_DEVICE_ID_PLX_R685:
605 printk(KERN_INFO "Gazel: Card PCI R685 found\n");
606 cs->subtyp = R685;
607 cs->dc.isac.adf2 = 0x87;
608 printk(KERN_INFO
609 "Gazel: config irq:%d isac:0x%X cfg:0x%X\n",
610 cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
611 printk(KERN_INFO
612 "Gazel: hscx A:0x%X hscx B:0x%X\n",
613 cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
614 break;
615 case PCI_DEVICE_ID_PLX_R753:
616 case PCI_DEVICE_ID_PLX_DJINN_ITOO:
617 printk(KERN_INFO "Gazel: Card PCI R753 found\n");
618 cs->subtyp = R753;
619 test_and_set_bit(HW_IPAC, &cs->HW_Flags);
620 printk(KERN_INFO
621 "Gazel: config irq:%d ipac:0x%X cfg:0x%X\n",
622 cs->irq, cs->hw.gazel.ipac, cs->hw.gazel.cfg_reg);
623 break;
624 }
625
626 return (0);
627 }
628
629 int __init
630 setup_gazel(struct IsdnCard *card)
631 {
632 struct IsdnCardState *cs = card->cs;
633 char tmp[64];
634 u_char val;
635
636 strcpy(tmp, gazel_revision);
637 printk(KERN_INFO "Gazel: Driver Revision %s\n", HiSax_getrev(tmp));
638
639 if (cs->typ != ISDN_CTYPE_GAZEL)
640 return (0);
641
642 if (card->para[0]) {
643 if (setup_gazelisa(card, cs))
644 return (0);
645 } else {
646
647 #if CONFIG_PCI
648 if (setup_gazelpci(cs))
649 return (0);
650 #else
651 printk(KERN_WARNING "Gazel: Card PCI requested and NO_PCI_BIOS, unable to config\n");
652 return (0);
653 #endif /* CONFIG_PCI */
654 }
655
656 if (reserve_regions(card, cs)) {
657 return (0);
658 }
659 if (reset_gazel(cs)) {
660 printk(KERN_WARNING "Gazel: wrong IRQ\n");
661 release_io_gazel(cs);
662 return (0);
663 }
664 cs->readisac = &ReadISAC;
665 cs->writeisac = &WriteISAC;
666 cs->readisacfifo = &ReadISACfifo;
667 cs->writeisacfifo = &WriteISACfifo;
668 cs->BC_Read_Reg = &ReadHSCX;
669 cs->BC_Write_Reg = &WriteHSCX;
670 cs->BC_Send_Data = &hscx_fill_fifo;
671 cs->cardmsg = &Gazel_card_msg;
672
673 switch (cs->subtyp) {
674 case R647:
675 case R685:
676 cs->irq_func = &gazel_interrupt;
677 ISACVersion(cs, "Gazel:");
678 if (HscxVersion(cs, "Gazel:")) {
679 printk(KERN_WARNING
680 "Gazel: wrong HSCX versions check IO address\n");
681 release_io_gazel(cs);
682 return (0);
683 }
684 break;
685 case R742:
686 case R753:
687 cs->irq_func = &gazel_interrupt_ipac;
688 val = ReadISAC(cs, IPAC_ID - 0x80);
689 printk(KERN_INFO "Gazel: IPAC version %x\n", val);
690 break;
691 }
692
693 return (1);
694 }
695