aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/isdn/hisax/teles3.c
blob: 6a5e379e077418a385b7aaa453c17e9df9ee8d41 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
/* $Id: teles3.c,v 2.19.2.4 2004/01/13 23:48:39 keil Exp $
 *
 * low level stuff for Teles 16.3 & PNP isdn cards
 *
 * Author       Karsten Keil
 * Copyright    by Karsten Keil      <keil@isdn4linux.de>
 * 
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 * Thanks to    Jan den Ouden
 *              Fritz Elfert
 *              Beat Doebeli
 *
 */
#include <linux/init.h>
#include <linux/isapnp.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"

extern const char *CardType[];
static const char *teles3_revision = "$Revision: 2.19.2.4 $";

#define byteout(addr,val) outb(val,addr)
#define bytein(addr) inb(addr)

static inline u_char
readreg(unsigned int adr, u_char off)
{
	return (bytein(adr + off));
}

static inline void
writereg(unsigned int adr, u_char off, u_char data)
{
	byteout(adr + off, data);
}


static inline void
read_fifo(unsigned int adr, u_char * data, int size)
{
	insb(adr, data, size);
}

static void
write_fifo(unsigned int adr, u_char * data, int size)
{
	outsb(adr, data, size);
}

/* Interface functions */

static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
	return (readreg(cs->hw.teles3.isac, offset));
}

static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
	writereg(cs->hw.teles3.isac, offset, value);
}

static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
	read_fifo(cs->hw.teles3.isacfifo, data, size);
}

static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
	write_fifo(cs->hw.teles3.isacfifo, data, size);
}

static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
	return (readreg(cs->hw.teles3.hscx[hscx], offset));
}

static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
	writereg(cs->hw.teles3.hscx[hscx], offset, value);
}

/*
 * fast interrupt HSCX stuff goes here
 */

#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.hscx[nr], reg)
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.hscx[nr], reg, data)
#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)

#include "hscx_irq.c"

static irqreturn_t
teles3_interrupt(int intno, void *dev_id)
{
#define MAXCOUNT 5
	struct IsdnCardState *cs = dev_id;
	u_char val;
	u_long flags;
	int count = 0;

	spin_lock_irqsave(&cs->lock, flags);
	val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
      Start_HSCX:
	if (val)
		hscx_int_main(cs, val);
	val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
      Start_ISAC:
	if (val)
		isac_interrupt(cs, val);
	count++;
	val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
	if (val && count < MAXCOUNT) {
		if (cs->debug & L1_DEB_HSCX)
			debugl1(cs, "HSCX IntStat after IntRoutine");
		goto Start_HSCX;
	}
	val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
	if (val && count < MAXCOUNT) {
		if (cs->debug & L1_DEB_ISAC)
			debugl1(cs, "ISAC IntStat after IntRoutine");
		goto Start_ISAC;
	}
	if (count >= MAXCOUNT)
		printk(KERN_WARNING "Teles3: more than %d loops in teles3_interrupt\n", count);
	writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
	writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
	writereg(cs->hw.teles3.isac, ISAC_MASK, 0xFF);
	writereg(cs->hw.teles3.isac, ISAC_MASK, 0x0);
	writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
	writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}

static inline void
release_ioregs(struct IsdnCardState *cs, int mask)
{
	if (mask & 1)
		release_region(cs->hw.teles3.isac + 32, 32);
	if (mask & 2)
		release_region(cs->hw.teles3.hscx[0] + 32, 32);
	if (mask & 4)
		release_region(cs->hw.teles3.hscx[1] + 32, 32);
}

static void
release_io_teles3(struct IsdnCardState *cs)
{
	if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
		release_region(cs->hw.teles3.hscx[1], 96);
	} else {
		if (cs->hw.teles3.cfg_reg) {
			if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
				release_region(cs->hw.teles3.cfg_reg, 1);
			} else {
				release_region(cs->hw.teles3.cfg_reg, 8);
			}
		}
		release_ioregs(cs, 0x7);
	}
}

static int
reset_teles3(struct IsdnCardState *cs)
{
	u_char irqcfg;

	if (cs->typ != ISDN_CTYPE_TELESPCMCIA) {
		if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
			switch (cs->irq) {
				case 2:
				case 9:
					irqcfg = 0x00;
					break;
				case 3:
					irqcfg = 0x02;
					break;
				case 4:
					irqcfg = 0x04;
					break;
				case 5:
					irqcfg = 0x06;
					break;
				case 10:
					irqcfg = 0x08;
					break;
				case 11:
					irqcfg = 0x0A;
					break;
				case 12:
					irqcfg = 0x0C;
					break;
				case 15:
					irqcfg = 0x0E;
					break;
				default:
					return(1);
			}
			byteout(cs->hw.teles3.cfg_reg + 4, irqcfg);
			HZDELAY(HZ / 10 + 1);
			byteout(cs->hw.teles3.cfg_reg + 4, irqcfg | 1);
			HZDELAY(HZ / 10 + 1);
		} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
			byteout(cs->hw.teles3.cfg_reg, 0xff);
			HZDELAY(2);
			byteout(cs->hw.teles3.cfg_reg, 0x00);
			HZDELAY(2);
		} else {
			/* Reset off for 16.3 PnP , thanks to Georg Acher */
			byteout(cs->hw.teles3.isac + 0x3c, 0);
			HZDELAY(2);
			byteout(cs->hw.teles3.isac + 0x3c, 1);
			HZDELAY(2);
		}
	}
	return(0);
}

static int
Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
	u_long flags;

	switch (mt) {
		case CARD_RESET:
			spin_lock_irqsave(&cs->lock, flags);
			reset_teles3(cs);
			spin_unlock_irqrestore(&cs->lock, flags);
			return(0);
		case CARD_RELEASE:
			release_io_teles3(cs);
			return(0);
		case CARD_INIT:
			spin_lock_irqsave(&cs->lock, flags);
			inithscxisac(cs, 3);
			spin_unlock_irqrestore(&cs->lock, flags);
			return(0);
		case CARD_TEST:
			return(0);
	}
	return(0);
}

#ifdef __ISAPNP__

static struct isapnp_device_id teles_ids[] __devinitdata = {
	{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
	  ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110), 
	  (unsigned long) "Teles 16.3 PnP" },
	{ ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
	  ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0), 
	  (unsigned long) "Creatix 16.3 PnP" },
	{ ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
	  ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002), 
	  (unsigned long) "Compaq ISDN S0" },
	{ 0, }
};

static struct isapnp_device_id *ipid __devinitdata = &teles_ids[0];
static struct pnp_card *pnp_c __devinitdata = NULL;
#endif

int __devinit
setup_teles3(struct IsdnCard *card)
{
	u_char val;
	struct IsdnCardState *cs = card->cs;
	char tmp[64];

	strcpy(tmp, teles3_revision);
	printk(KERN_INFO "HiSax: Teles IO driver Rev. %s\n", HiSax_getrev(tmp));
	if ((cs->typ != ISDN_CTYPE_16_3) && (cs->typ != ISDN_CTYPE_PNP)
	    && (cs->typ != ISDN_CTYPE_TELESPCMCIA) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA))
		return (0);

#ifdef __ISAPNP__
	if (!card->para[1] && isapnp_present()) {
		struct pnp_dev *pnp_d;
		while(ipid->card_vendor) {
			if ((pnp_c = pnp_find_card(ipid->card_vendor,
				ipid->card_device, pnp_c))) {
				pnp_d = NULL;
				if ((pnp_d = pnp_find_dev(pnp_c,
					ipid->vendor, ipid->function, pnp_d))) {
					int err;

					printk(KERN_INFO "HiSax: %s detected\n",
						(char *)ipid->driver_data);
					pnp_disable_dev(pnp_d);
					err = pnp_activate_dev(pnp_d);
					if (err<0) {
						printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
							__FUNCTION__, err);
						return(0);
					}
					card->para[3] = pnp_port_start(pnp_d, 2);
					card->para[2] = pnp_port_start(pnp_d, 1);
					card->para[1] = pnp_port_start(pnp_d, 0);
					card->para[0] = pnp_irq(pnp_d, 0);
					if (!card->para[0] || !card->para[1] || !card->para[2]) {
						printk(KERN_ERR "Teles PnP:some resources are missing %ld/%lx/%lx\n",
							card->para[0], card->para[1], card->para[2]);
						pnp_disable_dev(pnp_d);
						return(0);
					}
					break;
				} else {
					printk(KERN_ERR "Teles PnP: PnP error card found, no device\n");
				}
			}
			ipid++;
			pnp_c = NULL;
		} 
		if (!ipid->card_vendor) {
			printk(KERN_INFO "Teles PnP: no ISAPnP card found\n");
			return(0);
		}
	}
#endif
	if (cs->typ == ISDN_CTYPE_16_3) {
		cs->hw.teles3.cfg_reg = card->para[1];
		switch (cs->hw.teles3.cfg_reg) {
			case 0x180:
			case 0x280:
			case 0x380:
				cs->hw.teles3.cfg_reg |= 0xc00;
				break;
		}
		cs->hw.teles3.isac = cs->hw.teles3.cfg_reg - 0x420;
		cs->hw.teles3.hscx[0] = cs->hw.teles3.cfg_reg - 0xc20;
		cs->hw.teles3.hscx[1] = cs->hw.teles3.cfg_reg - 0x820;
	} else if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
		cs->hw.teles3.cfg_reg = 0;
		cs->hw.teles3.hscx[0] = card->para[1] - 0x20;
		cs->hw.teles3.hscx[1] = card->para[1];
		cs->hw.teles3.isac = card->para[1] + 0x20;
	} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
		cs->hw.teles3.cfg_reg = card->para[3];
		cs->hw.teles3.isac = card->para[2] - 32;
		cs->hw.teles3.hscx[0] = card->para[1] - 32;
		cs->hw.teles3.hscx[1] = card->para[1];
	} else {	/* PNP */
		cs->hw.teles3.cfg_reg = 0;
		cs->hw.teles3.isac = card->para[1] - 32;
		cs->hw.teles3.hscx[0] = card->para[2] - 32;
		cs->hw.teles3.hscx[1] = card->para[2];
	}
	cs->irq = card->para[0];
	cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
	cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
	cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
	if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
		if (!request_region(cs->hw.teles3.hscx[1], 96, "HiSax Teles PCMCIA")) {
			printk(KERN_WARNING
			       "HiSax: %s ports %x-%x already in use\n",
			       CardType[cs->typ],
			       cs->hw.teles3.hscx[1],
			       cs->hw.teles3.hscx[1] + 96);
			return (0);
		}
		cs->irq_flags |= IRQF_SHARED; /* cardbus can share */
	} else {
		if (cs->hw.teles3.cfg_reg) {
			if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
				if (!request_region(cs->hw.teles3.cfg_reg, 1, "teles3 cfg")) {
					printk(KERN_WARNING
						"HiSax: %s config port %x already in use\n",
						CardType[card->typ],
						cs->hw.teles3.cfg_reg);
					return (0);
				}
			} else {
				if (!request_region(cs->hw.teles3.cfg_reg, 8, "teles3 cfg")) {
					printk(KERN_WARNING
					       "HiSax: %s config port %x-%x already in use\n",
					       CardType[card->typ],
					       cs->hw.teles3.cfg_reg,
						cs->hw.teles3.cfg_reg + 8);
					return (0);
				}
			}
		}
		if (!request_region(cs->hw.teles3.isac + 32, 32, "HiSax isac")) {
			printk(KERN_WARNING
			   "HiSax: %s isac ports %x-%x already in use\n",
			       CardType[cs->typ],
			       cs->hw.teles3.isac + 32,
			       cs->hw.teles3.isac + 64);
			if (cs->hw.teles3.cfg_reg) {
				if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
					release_region(cs->hw.teles3.cfg_reg, 1);
				} else {
					release_region(cs->hw.teles3.cfg_reg, 8);
				}
			}
			return (0);
		}
		if (!request_region(cs->hw.teles3.hscx[0] + 32, 32, "HiSax hscx A")) {
			printk(KERN_WARNING
			 "HiSax: %s hscx A ports %x-%x already in use\n",
			       CardType[cs->typ],
			       cs->hw.teles3.hscx[0] + 32,
			       cs->hw.teles3.hscx[0] + 64);
			if (cs->hw.teles3.cfg_reg) {
				if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
					release_region(cs->hw.teles3.cfg_reg, 1);
				} else {
					release_region(cs->hw.teles3.cfg_reg, 8);
				}
			}
			release_ioregs(cs, 1);
			return (0);
		}
		if (!request_region(cs->hw.teles3.hscx[1] + 32, 32, "HiSax hscx B")) {
			printk(KERN_WARNING
			 "HiSax: %s hscx B ports %x-%x already in use\n",
			       CardType[cs->typ],
			       cs->hw.teles3.hscx[1] + 32,
			       cs->hw.teles3.hscx[1] + 64);
			if (cs->hw.teles3.cfg_reg) {
				if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
					release_region(cs->hw.teles3.cfg_reg, 1);
				} else {
					release_region(cs->hw.teles3.cfg_reg, 8);
				}
			}
			release_ioregs(cs, 3);
			return (0);
		}
	}
	if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
		if ((val = bytein(cs->hw.teles3.cfg_reg + 0)) != 0x51) {
			printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
			       cs->hw.teles3.cfg_reg + 0, val);
			release_io_teles3(cs);
			return (0);
		}
		if ((val = bytein(cs->hw.teles3.cfg_reg + 1)) != 0x93) {
			printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
			       cs->hw.teles3.cfg_reg + 1, val);
			release_io_teles3(cs);
			return (0);
		}
		val = bytein(cs->hw.teles3.cfg_reg + 2);/* 0x1e=without AB
							 * 0x1f=with AB
							 * 0x1c 16.3 ???
							 * 0x39 16.3 1.1
							 * 0x38 16.3 1.3
							 * 0x46 16.3 with AB + Video (Teles-Vision)
							 */
		if (val != 0x46 && val != 0x39 && val != 0x38 && val != 0x1c && val != 0x1e && val != 0x1f) {
			printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
			       cs->hw.teles3.cfg_reg + 2, val);
			release_io_teles3(cs);
			return (0);
		}
	}
	printk(KERN_INFO
	       "HiSax: %s config irq:%d isac:0x%X  cfg:0x%X\n",
	       CardType[cs->typ], cs->irq,
	       cs->hw.teles3.isac + 32, cs->hw.teles3.cfg_reg);
	printk(KERN_INFO
	       "HiSax: hscx A:0x%X  hscx B:0x%X\n",
	       cs->hw.teles3.hscx[0] + 32, cs->hw.teles3.hscx[1] + 32);

	setup_isac(cs);
	if (reset_teles3(cs)) {
		printk(KERN_WARNING "Teles3: wrong IRQ\n");
		release_io_teles3(cs);
		return (0);
	}
	cs->readisac = &ReadISAC;
	cs->writeisac = &WriteISAC;
	cs->readisacfifo = &ReadISACfifo;
	cs->writeisacfifo = &WriteISACfifo;
	cs->BC_Read_Reg = &ReadHSCX;
	cs->BC_Write_Reg = &WriteHSCX;
	cs->BC_Send_Data = &hscx_fill_fifo;
	cs->cardmsg = &Teles_card_msg;
	cs->irq_func = &teles3_interrupt;
	ISACVersion(cs, "Teles3:");
	if (HscxVersion(cs, "Teles3:")) {
		printk(KERN_WARNING
		       "Teles3: wrong HSCX versions check IO address\n");
		release_io_teles3(cs);
		return (0);
	}
	return (1);
}