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 static 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 
44 static inline u_char
readreg(unsigned int adr,u_short off)45 readreg(unsigned int adr, u_short off)
46 {
47 	return bytein(adr + off);
48 }
49 
50 static inline void
writereg(unsigned int adr,u_short off,u_char data)51 writereg(unsigned int adr, u_short off, u_char data)
52 {
53 	byteout(adr + off, data);
54 }
55 
56 
57 static inline void
read_fifo(unsigned int adr,u_char * data,int size)58 read_fifo(unsigned int adr, u_char * data, int size)
59 {
60 	insb(adr, data, size);
61 }
62 
63 static void
write_fifo(unsigned int adr,u_char * data,int size)64 write_fifo(unsigned int adr, u_char * data, int size)
65 {
66 	outsb(adr, data, size);
67 }
68 
69 static inline u_char
readreg_ipac(unsigned int adr,u_short off)70 readreg_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 
79 static inline void
writereg_ipac(unsigned int adr,u_short off,u_char data)80 writereg_ipac(unsigned int adr, u_short off, u_char data)
81 {
82 	byteout(adr, off);
83 	byteout(adr + 4, data);
84 }
85 
86 
87 static inline void
read_fifo_ipac(unsigned int adr,u_short off,u_char * data,int size)88 read_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 
94 static void
write_fifo_ipac(unsigned int adr,u_short off,u_char * data,int size)95 write_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 
103 static u_char
ReadISAC(struct IsdnCardState * cs,u_char offset)104 ReadISAC(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 
120 static void
WriteISAC(struct IsdnCardState * cs,u_char offset,u_char value)121 WriteISAC(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 
138 static void
ReadISACfifo(struct IsdnCardState * cs,u_char * data,int size)139 ReadISACfifo(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 
153 static void
WriteISACfifo(struct IsdnCardState * cs,u_char * data,int size)154 WriteISACfifo(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 
168 static void
ReadHSCXfifo(struct IsdnCardState * cs,int hscx,u_char * data,int size)169 ReadHSCXfifo(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 
183 static void
WriteHSCXfifo(struct IsdnCardState * cs,int hscx,u_char * data,int size)184 WriteHSCXfifo(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 
198 static u_char
ReadHSCX(struct IsdnCardState * cs,int hscx,u_char offset)199 ReadHSCX(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 
215 static void
WriteHSCX(struct IsdnCardState * cs,int hscx,u_char offset,u_char value)216 WriteHSCX(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 
244 static irqreturn_t
gazel_interrupt(int intno,void * dev_id)245 gazel_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 
275 static irqreturn_t
gazel_interrupt_ipac(int intno,void * dev_id)276 gazel_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 
319 static void
release_io_gazel(struct IsdnCardState * cs)320 release_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 
347 static int
reset_gazel(struct IsdnCardState * cs)348 reset_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 
400 static int
Gazel_card_msg(struct IsdnCardState * cs,int mt,void * arg)401 Gazel_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 
432 static int
reserve_regions(struct IsdnCard * card,struct IsdnCardState * cs)433 reserve_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 
486 static int __devinit
setup_gazelisa(struct IsdnCard * card,struct IsdnCardState * cs)487 setup_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
535 static struct pci_dev *dev_tel __devinitdata = NULL;
536 
537 static int __devinit
setup_gazelpci(struct IsdnCardState * cs)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 = 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 
625 int __devinit
setup_gazel(struct IsdnCard * card)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 }
691