1 /* $Id: teles3.c,v 2.19.2.4 2004/01/13 23:48:39 keil Exp $
2 *
3 * low level stuff for Teles 16.3 & PNP isdn cards
4 *
5 * Author Karsten Keil
6 * Copyright by Karsten Keil <keil@isdn4linux.de>
7 *
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
10 *
11 * Thanks to Jan den Ouden
12 * Fritz Elfert
13 * Beat Doebeli
14 *
15 */
16 #include <linux/init.h>
17 #include <linux/isapnp.h>
18 #include "hisax.h"
19 #include "isac.h"
20 #include "hscx.h"
21 #include "isdnl1.h"
22
23 static const char *teles3_revision = "$Revision: 2.19.2.4 $";
24
25 #define byteout(addr, val) outb(val, addr)
26 #define bytein(addr) inb(addr)
27
28 static inline u_char
readreg(unsigned int adr,u_char off)29 readreg(unsigned int adr, u_char off)
30 {
31 return (bytein(adr + off));
32 }
33
34 static inline void
writereg(unsigned int adr,u_char off,u_char data)35 writereg(unsigned int adr, u_char off, u_char data)
36 {
37 byteout(adr + off, data);
38 }
39
40
41 static inline void
read_fifo(unsigned int adr,u_char * data,int size)42 read_fifo(unsigned int adr, u_char *data, int size)
43 {
44 insb(adr, data, size);
45 }
46
47 static void
write_fifo(unsigned int adr,u_char * data,int size)48 write_fifo(unsigned int adr, u_char *data, int size)
49 {
50 outsb(adr, data, size);
51 }
52
53 /* Interface functions */
54
55 static u_char
ReadISAC(struct IsdnCardState * cs,u_char offset)56 ReadISAC(struct IsdnCardState *cs, u_char offset)
57 {
58 return (readreg(cs->hw.teles3.isac, offset));
59 }
60
61 static void
WriteISAC(struct IsdnCardState * cs,u_char offset,u_char value)62 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
63 {
64 writereg(cs->hw.teles3.isac, offset, value);
65 }
66
67 static void
ReadISACfifo(struct IsdnCardState * cs,u_char * data,int size)68 ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
69 {
70 read_fifo(cs->hw.teles3.isacfifo, data, size);
71 }
72
73 static void
WriteISACfifo(struct IsdnCardState * cs,u_char * data,int size)74 WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
75 {
76 write_fifo(cs->hw.teles3.isacfifo, data, size);
77 }
78
79 static u_char
ReadHSCX(struct IsdnCardState * cs,int hscx,u_char offset)80 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
81 {
82 return (readreg(cs->hw.teles3.hscx[hscx], offset));
83 }
84
85 static void
WriteHSCX(struct IsdnCardState * cs,int hscx,u_char offset,u_char value)86 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
87 {
88 writereg(cs->hw.teles3.hscx[hscx], offset, value);
89 }
90
91 /*
92 * fast interrupt HSCX stuff goes here
93 */
94
95 #define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.hscx[nr], reg)
96 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.hscx[nr], reg, data)
97 #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
98 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
99
100 #include "hscx_irq.c"
101
102 static irqreturn_t
teles3_interrupt(int intno,void * dev_id)103 teles3_interrupt(int intno, void *dev_id)
104 {
105 #define MAXCOUNT 5
106 struct IsdnCardState *cs = dev_id;
107 u_char val;
108 u_long flags;
109 int count = 0;
110
111 spin_lock_irqsave(&cs->lock, flags);
112 val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
113 Start_HSCX:
114 if (val)
115 hscx_int_main(cs, val);
116 val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
117 Start_ISAC:
118 if (val)
119 isac_interrupt(cs, val);
120 count++;
121 val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
122 if (val && count < MAXCOUNT) {
123 if (cs->debug & L1_DEB_HSCX)
124 debugl1(cs, "HSCX IntStat after IntRoutine");
125 goto Start_HSCX;
126 }
127 val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
128 if (val && count < MAXCOUNT) {
129 if (cs->debug & L1_DEB_ISAC)
130 debugl1(cs, "ISAC IntStat after IntRoutine");
131 goto Start_ISAC;
132 }
133 if (count >= MAXCOUNT)
134 printk(KERN_WARNING "Teles3: more than %d loops in teles3_interrupt\n", count);
135 writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
136 writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
137 writereg(cs->hw.teles3.isac, ISAC_MASK, 0xFF);
138 writereg(cs->hw.teles3.isac, ISAC_MASK, 0x0);
139 writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
140 writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
141 spin_unlock_irqrestore(&cs->lock, flags);
142 return IRQ_HANDLED;
143 }
144
145 static inline void
release_ioregs(struct IsdnCardState * cs,int mask)146 release_ioregs(struct IsdnCardState *cs, int mask)
147 {
148 if (mask & 1)
149 release_region(cs->hw.teles3.isac + 32, 32);
150 if (mask & 2)
151 release_region(cs->hw.teles3.hscx[0] + 32, 32);
152 if (mask & 4)
153 release_region(cs->hw.teles3.hscx[1] + 32, 32);
154 }
155
156 static void
release_io_teles3(struct IsdnCardState * cs)157 release_io_teles3(struct IsdnCardState *cs)
158 {
159 if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
160 release_region(cs->hw.teles3.hscx[1], 96);
161 } else {
162 if (cs->hw.teles3.cfg_reg) {
163 if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
164 release_region(cs->hw.teles3.cfg_reg, 1);
165 } else {
166 release_region(cs->hw.teles3.cfg_reg, 8);
167 }
168 }
169 release_ioregs(cs, 0x7);
170 }
171 }
172
173 static int
reset_teles3(struct IsdnCardState * cs)174 reset_teles3(struct IsdnCardState *cs)
175 {
176 u_char irqcfg;
177
178 if (cs->typ != ISDN_CTYPE_TELESPCMCIA) {
179 if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
180 switch (cs->irq) {
181 case 2:
182 case 9:
183 irqcfg = 0x00;
184 break;
185 case 3:
186 irqcfg = 0x02;
187 break;
188 case 4:
189 irqcfg = 0x04;
190 break;
191 case 5:
192 irqcfg = 0x06;
193 break;
194 case 10:
195 irqcfg = 0x08;
196 break;
197 case 11:
198 irqcfg = 0x0A;
199 break;
200 case 12:
201 irqcfg = 0x0C;
202 break;
203 case 15:
204 irqcfg = 0x0E;
205 break;
206 default:
207 return (1);
208 }
209 byteout(cs->hw.teles3.cfg_reg + 4, irqcfg);
210 HZDELAY(HZ / 10 + 1);
211 byteout(cs->hw.teles3.cfg_reg + 4, irqcfg | 1);
212 HZDELAY(HZ / 10 + 1);
213 } else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
214 byteout(cs->hw.teles3.cfg_reg, 0xff);
215 HZDELAY(2);
216 byteout(cs->hw.teles3.cfg_reg, 0x00);
217 HZDELAY(2);
218 } else {
219 /* Reset off for 16.3 PnP , thanks to Georg Acher */
220 byteout(cs->hw.teles3.isac + 0x3c, 0);
221 HZDELAY(2);
222 byteout(cs->hw.teles3.isac + 0x3c, 1);
223 HZDELAY(2);
224 }
225 }
226 return (0);
227 }
228
229 static int
Teles_card_msg(struct IsdnCardState * cs,int mt,void * arg)230 Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg)
231 {
232 u_long flags;
233
234 switch (mt) {
235 case CARD_RESET:
236 spin_lock_irqsave(&cs->lock, flags);
237 reset_teles3(cs);
238 spin_unlock_irqrestore(&cs->lock, flags);
239 return (0);
240 case CARD_RELEASE:
241 release_io_teles3(cs);
242 return (0);
243 case CARD_INIT:
244 spin_lock_irqsave(&cs->lock, flags);
245 inithscxisac(cs, 3);
246 spin_unlock_irqrestore(&cs->lock, flags);
247 return (0);
248 case CARD_TEST:
249 return (0);
250 }
251 return (0);
252 }
253
254 #ifdef __ISAPNP__
255
256 static struct isapnp_device_id teles_ids[] __devinitdata = {
257 { ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
258 ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
259 (unsigned long) "Teles 16.3 PnP" },
260 { ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
261 ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
262 (unsigned long) "Creatix 16.3 PnP" },
263 { ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
264 ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
265 (unsigned long) "Compaq ISDN S0" },
266 { 0, }
267 };
268
269 static struct isapnp_device_id *ipid __devinitdata = &teles_ids[0];
270 static struct pnp_card *pnp_c __devinitdata = NULL;
271 #endif
272
273 int __devinit
setup_teles3(struct IsdnCard * card)274 setup_teles3(struct IsdnCard *card)
275 {
276 u_char val;
277 struct IsdnCardState *cs = card->cs;
278 char tmp[64];
279
280 strcpy(tmp, teles3_revision);
281 printk(KERN_INFO "HiSax: Teles IO driver Rev. %s\n", HiSax_getrev(tmp));
282 if ((cs->typ != ISDN_CTYPE_16_3) && (cs->typ != ISDN_CTYPE_PNP)
283 && (cs->typ != ISDN_CTYPE_TELESPCMCIA) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA))
284 return (0);
285
286 #ifdef __ISAPNP__
287 if (!card->para[1] && isapnp_present()) {
288 struct pnp_dev *pnp_d;
289 while (ipid->card_vendor) {
290 if ((pnp_c = pnp_find_card(ipid->card_vendor,
291 ipid->card_device, pnp_c))) {
292 pnp_d = NULL;
293 if ((pnp_d = pnp_find_dev(pnp_c,
294 ipid->vendor, ipid->function, pnp_d))) {
295 int err;
296
297 printk(KERN_INFO "HiSax: %s detected\n",
298 (char *)ipid->driver_data);
299 pnp_disable_dev(pnp_d);
300 err = pnp_activate_dev(pnp_d);
301 if (err < 0) {
302 printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
303 __func__, err);
304 return (0);
305 }
306 card->para[3] = pnp_port_start(pnp_d, 2);
307 card->para[2] = pnp_port_start(pnp_d, 1);
308 card->para[1] = pnp_port_start(pnp_d, 0);
309 card->para[0] = pnp_irq(pnp_d, 0);
310 if (!card->para[0] || !card->para[1] || !card->para[2]) {
311 printk(KERN_ERR "Teles PnP:some resources are missing %ld/%lx/%lx\n",
312 card->para[0], card->para[1], card->para[2]);
313 pnp_disable_dev(pnp_d);
314 return (0);
315 }
316 break;
317 } else {
318 printk(KERN_ERR "Teles PnP: PnP error card found, no device\n");
319 }
320 }
321 ipid++;
322 pnp_c = NULL;
323 }
324 if (!ipid->card_vendor) {
325 printk(KERN_INFO "Teles PnP: no ISAPnP card found\n");
326 return (0);
327 }
328 }
329 #endif
330 if (cs->typ == ISDN_CTYPE_16_3) {
331 cs->hw.teles3.cfg_reg = card->para[1];
332 switch (cs->hw.teles3.cfg_reg) {
333 case 0x180:
334 case 0x280:
335 case 0x380:
336 cs->hw.teles3.cfg_reg |= 0xc00;
337 break;
338 }
339 cs->hw.teles3.isac = cs->hw.teles3.cfg_reg - 0x420;
340 cs->hw.teles3.hscx[0] = cs->hw.teles3.cfg_reg - 0xc20;
341 cs->hw.teles3.hscx[1] = cs->hw.teles3.cfg_reg - 0x820;
342 } else if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
343 cs->hw.teles3.cfg_reg = 0;
344 cs->hw.teles3.hscx[0] = card->para[1] - 0x20;
345 cs->hw.teles3.hscx[1] = card->para[1];
346 cs->hw.teles3.isac = card->para[1] + 0x20;
347 } else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
348 cs->hw.teles3.cfg_reg = card->para[3];
349 cs->hw.teles3.isac = card->para[2] - 32;
350 cs->hw.teles3.hscx[0] = card->para[1] - 32;
351 cs->hw.teles3.hscx[1] = card->para[1];
352 } else { /* PNP */
353 cs->hw.teles3.cfg_reg = 0;
354 cs->hw.teles3.isac = card->para[1] - 32;
355 cs->hw.teles3.hscx[0] = card->para[2] - 32;
356 cs->hw.teles3.hscx[1] = card->para[2];
357 }
358 cs->irq = card->para[0];
359 cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
360 cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
361 cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
362 if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
363 if (!request_region(cs->hw.teles3.hscx[1], 96, "HiSax Teles PCMCIA")) {
364 printk(KERN_WARNING
365 "HiSax: %s ports %x-%x already in use\n",
366 CardType[cs->typ],
367 cs->hw.teles3.hscx[1],
368 cs->hw.teles3.hscx[1] + 96);
369 return (0);
370 }
371 cs->irq_flags |= IRQF_SHARED; /* cardbus can share */
372 } else {
373 if (cs->hw.teles3.cfg_reg) {
374 if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
375 if (!request_region(cs->hw.teles3.cfg_reg, 1, "teles3 cfg")) {
376 printk(KERN_WARNING
377 "HiSax: %s config port %x already in use\n",
378 CardType[card->typ],
379 cs->hw.teles3.cfg_reg);
380 return (0);
381 }
382 } else {
383 if (!request_region(cs->hw.teles3.cfg_reg, 8, "teles3 cfg")) {
384 printk(KERN_WARNING
385 "HiSax: %s config port %x-%x already in use\n",
386 CardType[card->typ],
387 cs->hw.teles3.cfg_reg,
388 cs->hw.teles3.cfg_reg + 8);
389 return (0);
390 }
391 }
392 }
393 if (!request_region(cs->hw.teles3.isac + 32, 32, "HiSax isac")) {
394 printk(KERN_WARNING
395 "HiSax: %s isac ports %x-%x already in use\n",
396 CardType[cs->typ],
397 cs->hw.teles3.isac + 32,
398 cs->hw.teles3.isac + 64);
399 if (cs->hw.teles3.cfg_reg) {
400 if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
401 release_region(cs->hw.teles3.cfg_reg, 1);
402 } else {
403 release_region(cs->hw.teles3.cfg_reg, 8);
404 }
405 }
406 return (0);
407 }
408 if (!request_region(cs->hw.teles3.hscx[0] + 32, 32, "HiSax hscx A")) {
409 printk(KERN_WARNING
410 "HiSax: %s hscx A ports %x-%x already in use\n",
411 CardType[cs->typ],
412 cs->hw.teles3.hscx[0] + 32,
413 cs->hw.teles3.hscx[0] + 64);
414 if (cs->hw.teles3.cfg_reg) {
415 if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
416 release_region(cs->hw.teles3.cfg_reg, 1);
417 } else {
418 release_region(cs->hw.teles3.cfg_reg, 8);
419 }
420 }
421 release_ioregs(cs, 1);
422 return (0);
423 }
424 if (!request_region(cs->hw.teles3.hscx[1] + 32, 32, "HiSax hscx B")) {
425 printk(KERN_WARNING
426 "HiSax: %s hscx B ports %x-%x already in use\n",
427 CardType[cs->typ],
428 cs->hw.teles3.hscx[1] + 32,
429 cs->hw.teles3.hscx[1] + 64);
430 if (cs->hw.teles3.cfg_reg) {
431 if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
432 release_region(cs->hw.teles3.cfg_reg, 1);
433 } else {
434 release_region(cs->hw.teles3.cfg_reg, 8);
435 }
436 }
437 release_ioregs(cs, 3);
438 return (0);
439 }
440 }
441 if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
442 if ((val = bytein(cs->hw.teles3.cfg_reg + 0)) != 0x51) {
443 printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
444 cs->hw.teles3.cfg_reg + 0, val);
445 release_io_teles3(cs);
446 return (0);
447 }
448 if ((val = bytein(cs->hw.teles3.cfg_reg + 1)) != 0x93) {
449 printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
450 cs->hw.teles3.cfg_reg + 1, val);
451 release_io_teles3(cs);
452 return (0);
453 }
454 val = bytein(cs->hw.teles3.cfg_reg + 2);/* 0x1e=without AB
455 * 0x1f=with AB
456 * 0x1c 16.3 ???
457 * 0x39 16.3 1.1
458 * 0x38 16.3 1.3
459 * 0x46 16.3 with AB + Video (Teles-Vision)
460 */
461 if (val != 0x46 && val != 0x39 && val != 0x38 && val != 0x1c && val != 0x1e && val != 0x1f) {
462 printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
463 cs->hw.teles3.cfg_reg + 2, val);
464 release_io_teles3(cs);
465 return (0);
466 }
467 }
468 printk(KERN_INFO
469 "HiSax: %s config irq:%d isac:0x%X cfg:0x%X\n",
470 CardType[cs->typ], cs->irq,
471 cs->hw.teles3.isac + 32, cs->hw.teles3.cfg_reg);
472 printk(KERN_INFO
473 "HiSax: hscx A:0x%X hscx B:0x%X\n",
474 cs->hw.teles3.hscx[0] + 32, cs->hw.teles3.hscx[1] + 32);
475
476 setup_isac(cs);
477 if (reset_teles3(cs)) {
478 printk(KERN_WARNING "Teles3: wrong IRQ\n");
479 release_io_teles3(cs);
480 return (0);
481 }
482 cs->readisac = &ReadISAC;
483 cs->writeisac = &WriteISAC;
484 cs->readisacfifo = &ReadISACfifo;
485 cs->writeisacfifo = &WriteISACfifo;
486 cs->BC_Read_Reg = &ReadHSCX;
487 cs->BC_Write_Reg = &WriteHSCX;
488 cs->BC_Send_Data = &hscx_fill_fifo;
489 cs->cardmsg = &Teles_card_msg;
490 cs->irq_func = &teles3_interrupt;
491 ISACVersion(cs, "Teles3:");
492 if (HscxVersion(cs, "Teles3:")) {
493 printk(KERN_WARNING
494 "Teles3: wrong HSCX versions check IO address\n");
495 release_io_teles3(cs);
496 return (0);
497 }
498 return (1);
499 }
500