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[PATCH] irq-flags: IA64: Use the new IRQF_ constants
[linux-2.6/linux-loongson.git] / drivers / isdn / hisax / gazel.c
blob82a1d2e86ceea242407f4182a291b46eac9f501f
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 extern const char *CardType[];
23 static const char *gazel_revision = "$Revision: 2.19.2.4 $";
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
45 static inline u_char
46 readreg(unsigned int adr, u_short off)
47 {
48 return bytein(adr + off);
49 }
50
51 static inline void
52 writereg(unsigned int adr, u_short off, u_char data)
53 {
54 byteout(adr + off, data);
55 }
56
57
58 static inline void
59 read_fifo(unsigned int adr, u_char * data, int size)
60 {
61 insb(adr, data, size);
62 }
63
64 static void
65 write_fifo(unsigned int adr, u_char * data, int size)
66 {
67 outsb(adr, data, size);
68 }
69
70 static inline u_char
71 readreg_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
80 static inline void
81 writereg_ipac(unsigned int adr, u_short off, u_char data)
82 {
83 byteout(adr, off);
84 byteout(adr + 4, data);
85 }
86
87
88 static inline void
89 read_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
95 static void
96 write_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
104 static u_char
105 ReadISAC(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
121 static void
122 WriteISAC(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
139 static void
140 ReadISACfifo(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
154 static void
155 WriteISACfifo(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
169 static void
170 ReadHSCXfifo(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
184 static void
185 WriteHSCXfifo(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
199 static u_char
200 ReadHSCX(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
216 static void
217 WriteHSCX(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
245 static irqreturn_t
246 gazel_interrupt(int intno, void *dev_id, struct pt_regs *regs)
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
276 static irqreturn_t
277 gazel_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
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
320 static void
321 release_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
348 static int
349 reset_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
401 static int
402 Gazel_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
433 static int
434 reserve_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
487 static int __init
488 setup_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
535 static struct pci_dev *dev_tel __initdata = NULL;
536
537 static int __init
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 |= SA_SHIRQ;
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
624 int __init
625 setup_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 }
linux kernel for loongson