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IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
[net-next-2.6.git] / drivers / isdn / hisax / hisax_fcpcipnp.c
CommitLineData
1da177e4
LT		 1/*
2 * Driver for AVM Fritz!PCI, Fritz!PCI v2, Fritz!PnP ISDN cards
3 *
4 * Author Kai Germaschewski
5 * Copyright 2001 by Kai Germaschewski <kai.germaschewski@gmx.de>
6 * 2001 by Karsten Keil <keil@isdn4linux.de>
7 *
8 * based upon Karsten Keil's original avm_pci.c driver
9 *
10 * This software may be used and distributed according to the terms
11 * of the GNU General Public License, incorporated herein by reference.
12 *
13 * Thanks to Wizard Computersysteme GmbH, Bremervoerde and
14 * SoHaNet Technology GmbH, Berlin
15 * for supporting the development of this driver
16 */
17
18
19/* TODO:
20 *
21 * o POWER PC
22 * o clean up debugging
23 * o tx_skb at PH_DEACTIVATE time
24 */
25
1da177e4
LT		 26#include <linux/module.h>
27#include <linux/init.h>
28#include <linux/pci.h>
29#include <linux/isapnp.h>
30#include <linux/kmod.h>
31#include <linux/slab.h>
32#include <linux/skbuff.h>
33#include <linux/netdevice.h>
34#include <linux/delay.h>
35
36#include <asm/io.h>
37
38#include "hisax_fcpcipnp.h"
39
40// debugging cruft
41#define __debug_variable debug
42#include "hisax_debug.h"
43
44#ifdef CONFIG_HISAX_DEBUG
45static int debug = 0;
46/* static int hdlcfifosize = 32; */
47module_param(debug, int, 0);
48/* module_param(hdlcfifosize, int, 0); */
49#endif
50
51MODULE_AUTHOR("Kai Germaschewski <kai.germaschewski@gmx.de>/Karsten Keil <kkeil@suse.de>");
52MODULE_DESCRIPTION("AVM Fritz!PCI/PnP ISDN driver");
53
54static struct pci_device_id fcpci_ids[] = {
55 { .vendor = PCI_VENDOR_ID_AVM,
56 .device = PCI_DEVICE_ID_AVM_A1,
57 .subvendor = PCI_ANY_ID,
58 .subdevice = PCI_ANY_ID,
59 .driver_data = (unsigned long) "Fritz!Card PCI",
60 },
61 { .vendor = PCI_VENDOR_ID_AVM,
62 .device = PCI_DEVICE_ID_AVM_A1_V2,
63 .subvendor = PCI_ANY_ID,
64 .subdevice = PCI_ANY_ID,
65 .driver_data = (unsigned long) "Fritz!Card PCI v2" },
66 {}
67};
68
69MODULE_DEVICE_TABLE(pci, fcpci_ids);
70
71#ifdef __ISAPNP__
72static struct pnp_device_id fcpnp_ids[] __devinitdata = {
73 {
74 .id = "AVM0900",
75 .driver_data = (unsigned long) "Fritz!Card PnP",
76 },
77};
78
79MODULE_DEVICE_TABLE(isapnp, fcpnp_ids);
80#endif
81
82static int protocol = 2; /* EURO-ISDN Default */
83module_param(protocol, int, 0);
84MODULE_LICENSE("GPL");
85
86// ----------------------------------------------------------------------
87
88#define AVM_INDEX 0x04
89#define AVM_DATA 0x10
90
91#define AVM_IDX_HDLC_1 0x00
92#define AVM_IDX_HDLC_2 0x01
93#define AVM_IDX_ISAC_FIFO 0x02
94#define AVM_IDX_ISAC_REG_LOW 0x04
95#define AVM_IDX_ISAC_REG_HIGH 0x06
96
97#define AVM_STATUS0 0x02
98
99#define AVM_STATUS0_IRQ_ISAC 0x01
100#define AVM_STATUS0_IRQ_HDLC 0x02
101#define AVM_STATUS0_IRQ_TIMER 0x04
102#define AVM_STATUS0_IRQ_MASK 0x07
103
104#define AVM_STATUS0_RESET 0x01
105#define AVM_STATUS0_DIS_TIMER 0x02
106#define AVM_STATUS0_RES_TIMER 0x04
107#define AVM_STATUS0_ENA_IRQ 0x08
108#define AVM_STATUS0_TESTBIT 0x10
109
110#define AVM_STATUS1 0x03
111#define AVM_STATUS1_ENA_IOM 0x80
112
113#define HDLC_FIFO 0x0
114#define HDLC_STATUS 0x4
115#define HDLC_CTRL 0x4
116
117#define HDLC_MODE_ITF_FLG 0x01
118#define HDLC_MODE_TRANS 0x02
119#define HDLC_MODE_CCR_7 0x04
120#define HDLC_MODE_CCR_16 0x08
121#define HDLC_MODE_TESTLOOP 0x80
122
123#define HDLC_INT_XPR 0x80
124#define HDLC_INT_XDU 0x40
125#define HDLC_INT_RPR 0x20
126#define HDLC_INT_MASK 0xE0
127
128#define HDLC_STAT_RME 0x01
129#define HDLC_STAT_RDO 0x10
130#define HDLC_STAT_CRCVFRRAB 0x0E
131#define HDLC_STAT_CRCVFR 0x06
132#define HDLC_STAT_RML_MASK 0xff00
133
134#define HDLC_CMD_XRS 0x80
135#define HDLC_CMD_XME 0x01
136#define HDLC_CMD_RRS 0x20
137#define HDLC_CMD_XML_MASK 0xff00
138
139#define AVM_HDLC_FIFO_1 0x10
140#define AVM_HDLC_FIFO_2 0x18
141
142#define AVM_HDLC_STATUS_1 0x14
143#define AVM_HDLC_STATUS_2 0x1c
144
145#define AVM_ISACSX_INDEX 0x04
146#define AVM_ISACSX_DATA 0x08
147
148// ----------------------------------------------------------------------
149// Fritz!PCI
150
151static unsigned char fcpci_read_isac(struct isac *isac, unsigned char offset)
152{
153 struct fritz_adapter *adapter = isac->priv;
154 unsigned char idx = (offset > 0x2f) ?
155 AVM_IDX_ISAC_REG_HIGH : AVM_IDX_ISAC_REG_LOW;
156 unsigned char val;
157 unsigned long flags;
158
159 spin_lock_irqsave(&adapter->hw_lock, flags);
160 outb(idx, adapter->io + AVM_INDEX);
161 val = inb(adapter->io + AVM_DATA + (offset & 0xf));
162 spin_unlock_irqrestore(&adapter->hw_lock, flags);
163 DBG(0x1000, " port %#x, value %#x",
164 offset, val);
165 return val;
166}
167
168static void fcpci_write_isac(struct isac *isac, unsigned char offset,
169 unsigned char value)
170{
171 struct fritz_adapter *adapter = isac->priv;
172 unsigned char idx = (offset > 0x2f) ?
173 AVM_IDX_ISAC_REG_HIGH : AVM_IDX_ISAC_REG_LOW;
174 unsigned long flags;
175
176 DBG(0x1000, " port %#x, value %#x",
177 offset, value);
178 spin_lock_irqsave(&adapter->hw_lock, flags);
179 outb(idx, adapter->io + AVM_INDEX);
180 outb(value, adapter->io + AVM_DATA + (offset & 0xf));
181 spin_unlock_irqrestore(&adapter->hw_lock, flags);
182}
183
184static void fcpci_read_isac_fifo(struct isac *isac, unsigned char * data,
185 int size)
186{
187 struct fritz_adapter *adapter = isac->priv;
188 unsigned long flags;
189
190 spin_lock_irqsave(&adapter->hw_lock, flags);
191 outb(AVM_IDX_ISAC_FIFO, adapter->io + AVM_INDEX);
192 insb(adapter->io + AVM_DATA, data, size);
193 spin_unlock_irqrestore(&adapter->hw_lock, flags);
194}
195
196static void fcpci_write_isac_fifo(struct isac *isac, unsigned char * data,
197 int size)
198{
199 struct fritz_adapter *adapter = isac->priv;
200 unsigned long flags;
201
202 spin_lock_irqsave(&adapter->hw_lock, flags);
203 outb(AVM_IDX_ISAC_FIFO, adapter->io + AVM_INDEX);
204 outsb(adapter->io + AVM_DATA, data, size);
205 spin_unlock_irqrestore(&adapter->hw_lock, flags);
206}
207
208static u32 fcpci_read_hdlc_status(struct fritz_adapter *adapter, int nr)
209{
210 u32 val;
211 int idx = nr ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
212 unsigned long flags;
213
214 spin_lock_irqsave(&adapter->hw_lock, flags);
215 outl(idx, adapter->io + AVM_INDEX);
216 val = inl(adapter->io + AVM_DATA + HDLC_STATUS);
217 spin_unlock_irqrestore(&adapter->hw_lock, flags);
218 return val;
219}
220
221static void __fcpci_write_ctrl(struct fritz_bcs *bcs, int which)
222{
223 struct fritz_adapter *adapter = bcs->adapter;
224 int idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
225
226 DBG(0x40, "hdlc %c wr%x ctrl %x",
227 'A' + bcs->channel, which, bcs->ctrl.ctrl);
228
229 outl(idx, adapter->io + AVM_INDEX);
230 outl(bcs->ctrl.ctrl, adapter->io + AVM_DATA + HDLC_CTRL);
231}
232
233static void fcpci_write_ctrl(struct fritz_bcs *bcs, int which)
234{
235 struct fritz_adapter *adapter = bcs->adapter;
236 unsigned long flags;
237
238 spin_lock_irqsave(&adapter->hw_lock, flags);
239 __fcpci_write_ctrl(bcs, which);
240 spin_unlock_irqrestore(&adapter->hw_lock, flags);
241}
242
243// ----------------------------------------------------------------------
244// Fritz!PCI v2
245
246static unsigned char fcpci2_read_isac(struct isac *isac, unsigned char offset)
247{
248 struct fritz_adapter *adapter = isac->priv;
249 unsigned char val;
250 unsigned long flags;
251
252 spin_lock_irqsave(&adapter->hw_lock, flags);
253 outl(offset, adapter->io + AVM_ISACSX_INDEX);
254 val = inl(adapter->io + AVM_ISACSX_DATA);
255 spin_unlock_irqrestore(&adapter->hw_lock, flags);
256 DBG(0x1000, " port %#x, value %#x",
257 offset, val);
258
259 return val;
260}
261
262static void fcpci2_write_isac(struct isac *isac, unsigned char offset,
263 unsigned char value)
264{
265 struct fritz_adapter *adapter = isac->priv;
266 unsigned long flags;
267
268 DBG(0x1000, " port %#x, value %#x",
269 offset, value);
270 spin_lock_irqsave(&adapter->hw_lock, flags);
271 outl(offset, adapter->io + AVM_ISACSX_INDEX);
272 outl(value, adapter->io + AVM_ISACSX_DATA);
273 spin_unlock_irqrestore(&adapter->hw_lock, flags);
274}
275
276static void fcpci2_read_isac_fifo(struct isac *isac, unsigned char * data,
277 int size)
278{
279 struct fritz_adapter *adapter = isac->priv;
280 int i;
281 unsigned long flags;
282
283 spin_lock_irqsave(&adapter->hw_lock, flags);
284 outl(0, adapter->io + AVM_ISACSX_INDEX);
285 for (i = 0; i < size; i++)
286 data[i] = inl(adapter->io + AVM_ISACSX_DATA);
287 spin_unlock_irqrestore(&adapter->hw_lock, flags);
288}
289
290static void fcpci2_write_isac_fifo(struct isac *isac, unsigned char * data,
291 int size)
292{
293 struct fritz_adapter *adapter = isac->priv;
294 int i;
295 unsigned long flags;
296
297 spin_lock_irqsave(&adapter->hw_lock, flags);
298 outl(0, adapter->io + AVM_ISACSX_INDEX);
299 for (i = 0; i < size; i++)
300 outl(data[i], adapter->io + AVM_ISACSX_DATA);
301 spin_unlock_irqrestore(&adapter->hw_lock, flags);
302}
303
304static u32 fcpci2_read_hdlc_status(struct fritz_adapter *adapter, int nr)
305{
306 int offset = nr ? AVM_HDLC_STATUS_2 : AVM_HDLC_STATUS_1;
307
308 return inl(adapter->io + offset);
309}
310
311static void fcpci2_write_ctrl(struct fritz_bcs *bcs, int which)
312{
313 struct fritz_adapter *adapter = bcs->adapter;
314 int offset = bcs->channel ? AVM_HDLC_STATUS_2 : AVM_HDLC_STATUS_1;
315
316 DBG(0x40, "hdlc %c wr%x ctrl %x",
317 'A' + bcs->channel, which, bcs->ctrl.ctrl);
318
319 outl(bcs->ctrl.ctrl, adapter->io + offset);
320}
321
322// ----------------------------------------------------------------------
323// Fritz!PnP (ISAC access as for Fritz!PCI)
324
325static u32 fcpnp_read_hdlc_status(struct fritz_adapter *adapter, int nr)
326{
327 unsigned char idx = nr ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
328 u32 val;
329 unsigned long flags;
330
331 spin_lock_irqsave(&adapter->hw_lock, flags);
332 outb(idx, adapter->io + AVM_INDEX);
333 val = inb(adapter->io + AVM_DATA + HDLC_STATUS);
334 if (val & HDLC_INT_RPR)
335 val |= inb(adapter->io + AVM_DATA + HDLC_STATUS + 1) << 8;
336 spin_unlock_irqrestore(&adapter->hw_lock, flags);
337 return val;
338}
339
340static void __fcpnp_write_ctrl(struct fritz_bcs *bcs, int which)
341{
342 struct fritz_adapter *adapter = bcs->adapter;
343 unsigned char idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
344
345 DBG(0x40, "hdlc %c wr%x ctrl %x",
346 'A' + bcs->channel, which, bcs->ctrl.ctrl);
347
348 outb(idx, adapter->io + AVM_INDEX);
349 if (which & 4)
350 outb(bcs->ctrl.sr.mode,
351 adapter->io + AVM_DATA + HDLC_STATUS + 2);
352 if (which & 2)
353 outb(bcs->ctrl.sr.xml,
354 adapter->io + AVM_DATA + HDLC_STATUS + 1);
355 if (which & 1)
356 outb(bcs->ctrl.sr.cmd,
357 adapter->io + AVM_DATA + HDLC_STATUS + 0);
358}
359
360static void fcpnp_write_ctrl(struct fritz_bcs *bcs, int which)
361{
362 struct fritz_adapter *adapter = bcs->adapter;
363 unsigned long flags;
364
365 spin_lock_irqsave(&adapter->hw_lock, flags);
366 __fcpnp_write_ctrl(bcs, which);
367 spin_unlock_irqrestore(&adapter->hw_lock, flags);
368}
369
370// ----------------------------------------------------------------------
371
372static inline void B_L1L2(struct fritz_bcs *bcs, int pr, void *arg)
373{
374 struct hisax_if *ifc = (struct hisax_if *) &bcs->b_if;
375
376 DBG(2, "pr %#x", pr);
377 ifc->l1l2(ifc, pr, arg);
378}
379
380static void hdlc_fill_fifo(struct fritz_bcs *bcs)
381{
382 struct fritz_adapter *adapter = bcs->adapter;
383 struct sk_buff *skb = bcs->tx_skb;
384 int count;
385 unsigned long flags;
386 unsigned char *p;
387
388 DBG(0x40, "hdlc_fill_fifo");
389
6dd44a74 390 BUG_ON(skb->len == 0);
1da177e4
LT		 391
392 bcs->ctrl.sr.cmd &= ~HDLC_CMD_XME;
393 if (bcs->tx_skb->len > bcs->fifo_size) {
394 count = bcs->fifo_size;
395 } else {
396 count = bcs->tx_skb->len;
397 if (bcs->mode != L1_MODE_TRANS)
398 bcs->ctrl.sr.cmd |= HDLC_CMD_XME;
399 }
400 DBG(0x40, "hdlc_fill_fifo %d/%d", count, bcs->tx_skb->len);
401 p = bcs->tx_skb->data;
402 skb_pull(bcs->tx_skb, count);
403 bcs->tx_cnt += count;
404 bcs->ctrl.sr.xml = ((count == bcs->fifo_size) ? 0 : count);
405
406 switch (adapter->type) {
407 case AVM_FRITZ_PCI:
408 spin_lock_irqsave(&adapter->hw_lock, flags);
409 // sets the correct AVM_INDEX, too
410 __fcpci_write_ctrl(bcs, 3);
411 outsl(adapter->io + AVM_DATA + HDLC_FIFO,
412 p, (count + 3) / 4);
413 spin_unlock_irqrestore(&adapter->hw_lock, flags);
414 break;
415 case AVM_FRITZ_PCIV2:
416 fcpci2_write_ctrl(bcs, 3);
417 outsl(adapter->io +
418 (bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
419 p, (count + 3) / 4);
420 break;
421 case AVM_FRITZ_PNP:
422 spin_lock_irqsave(&adapter->hw_lock, flags);
423 // sets the correct AVM_INDEX, too
424 __fcpnp_write_ctrl(bcs, 3);
425 outsb(adapter->io + AVM_DATA, p, count);
426 spin_unlock_irqrestore(&adapter->hw_lock, flags);
427 break;
428 }
429}
430
431static inline void hdlc_empty_fifo(struct fritz_bcs *bcs, int count)
432{
433 struct fritz_adapter *adapter = bcs->adapter;
434 unsigned char *p;
435 unsigned char idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
436
437 DBG(0x10, "hdlc_empty_fifo %d", count);
438 if (bcs->rcvidx + count > HSCX_BUFMAX) {
439 DBG(0x10, "hdlc_empty_fifo: incoming packet too large");
440 return;
441 }
442 p = bcs->rcvbuf + bcs->rcvidx;
443 bcs->rcvidx += count;
444 switch (adapter->type) {
445 case AVM_FRITZ_PCI:
446 spin_lock(&adapter->hw_lock);
447 outl(idx, adapter->io + AVM_INDEX);
448 insl(adapter->io + AVM_DATA + HDLC_FIFO,
449 p, (count + 3) / 4);
450 spin_unlock(&adapter->hw_lock);
451 break;
452 case AVM_FRITZ_PCIV2:
453 insl(adapter->io +
454 (bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
455 p, (count + 3) / 4);
456 break;
457 case AVM_FRITZ_PNP:
458 spin_lock(&adapter->hw_lock);
459 outb(idx, adapter->io + AVM_INDEX);
460 insb(adapter->io + AVM_DATA, p, count);
461 spin_unlock(&adapter->hw_lock);
462 break;
463 }
464}
465
466static inline void hdlc_rpr_irq(struct fritz_bcs *bcs, u32 stat)
467{
468 struct fritz_adapter *adapter = bcs->adapter;
469 struct sk_buff *skb;
470 int len;
471
472 if (stat & HDLC_STAT_RDO) {
473 DBG(0x10, "RDO");
474 bcs->ctrl.sr.xml = 0;
475 bcs->ctrl.sr.cmd |= HDLC_CMD_RRS;
476 adapter->write_ctrl(bcs, 1);
477 bcs->ctrl.sr.cmd &= ~HDLC_CMD_RRS;
478 adapter->write_ctrl(bcs, 1);
479 bcs->rcvidx = 0;
480 return;
481 }
482
483 len = (stat & HDLC_STAT_RML_MASK) >> 8;
484 if (len == 0)
485 len = bcs->fifo_size;
486
487 hdlc_empty_fifo(bcs, len);
488
489 if ((stat & HDLC_STAT_RME) || (bcs->mode == L1_MODE_TRANS)) {
490 if (((stat & HDLC_STAT_CRCVFRRAB)== HDLC_STAT_CRCVFR) ||
491 (bcs->mode == L1_MODE_TRANS)) {
492 skb = dev_alloc_skb(bcs->rcvidx);
493 if (!skb) {
494 printk(KERN_WARNING "HDLC: receive out of memory\n");
495 } else {
496 memcpy(skb_put(skb, bcs->rcvidx), bcs->rcvbuf,
497 bcs->rcvidx);
498 DBG_SKB(1, skb);
499 B_L1L2(bcs, PH_DATA | INDICATION, skb);
500 }
501 bcs->rcvidx = 0;
502 } else {
503 DBG(0x10, "ch%d invalid frame %#x",
504 bcs->channel, stat);
505 bcs->rcvidx = 0;
506 }
507 }
508}
509
510static inline void hdlc_xdu_irq(struct fritz_bcs *bcs)
511{
512 struct fritz_adapter *adapter = bcs->adapter;
513
514
515 /* Here we lost an TX interrupt, so
516 * restart transmitting the whole frame.
517 */
518 bcs->ctrl.sr.xml = 0;
519 bcs->ctrl.sr.cmd |= HDLC_CMD_XRS;
520 adapter->write_ctrl(bcs, 1);
521 bcs->ctrl.sr.cmd &= ~HDLC_CMD_XRS;
522
523 if (!bcs->tx_skb) {
524 DBG(0x10, "XDU without skb");
525 adapter->write_ctrl(bcs, 1);
526 return;
527 }
528 /* only hdlc restarts the frame, transparent mode must continue */
529 if (bcs->mode == L1_MODE_HDLC) {
530 skb_push(bcs->tx_skb, bcs->tx_cnt);
531 bcs->tx_cnt = 0;
532 }
533}
534
535static inline void hdlc_xpr_irq(struct fritz_bcs *bcs)
536{
537 struct sk_buff *skb;
538
539 skb = bcs->tx_skb;
540 if (!skb)
541 return;
542
543 if (skb->len) {
544 hdlc_fill_fifo(bcs);
545 return;
546 }
547 bcs->tx_cnt = 0;
548 bcs->tx_skb = NULL;
17a4506d 549 B_L1L2(bcs, PH_DATA | CONFIRM, (void *)(unsigned long)skb->truesize);
1da177e4
LT		 550 dev_kfree_skb_irq(skb);
551}
552
553static void hdlc_irq_one(struct fritz_bcs *bcs, u32 stat)
554{
555 DBG(0x10, "ch%d stat %#x", bcs->channel, stat);
556 if (stat & HDLC_INT_RPR) {
557 DBG(0x10, "RPR");
558 hdlc_rpr_irq(bcs, stat);
559 }
560 if (stat & HDLC_INT_XDU) {
561 DBG(0x10, "XDU");
562 hdlc_xdu_irq(bcs);
563 hdlc_xpr_irq(bcs);
564 return;
565 }
566 if (stat & HDLC_INT_XPR) {
567 DBG(0x10, "XPR");
568 hdlc_xpr_irq(bcs);
569 }
570}
571
572static inline void hdlc_irq(struct fritz_adapter *adapter)
573{
574 int nr;
575 u32 stat;
576
577 for (nr = 0; nr < 2; nr++) {
578 stat = adapter->read_hdlc_status(adapter, nr);
579 DBG(0x10, "HDLC %c stat %#x", 'A' + nr, stat);
580 if (stat & HDLC_INT_MASK)
581 hdlc_irq_one(&adapter->bcs[nr], stat);
582 }
583}
584
585static void modehdlc(struct fritz_bcs *bcs, int mode)
586{
587 struct fritz_adapter *adapter = bcs->adapter;
588
589 DBG(0x40, "hdlc %c mode %d --> %d",
590 'A' + bcs->channel, bcs->mode, mode);
591
592 if (bcs->mode == mode)
593 return;
594
595 bcs->fifo_size = 32;
596 bcs->ctrl.ctrl = 0;
597 bcs->ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
598 switch (mode) {
599 case L1_MODE_NULL:
600 bcs->ctrl.sr.mode = HDLC_MODE_TRANS;
601 adapter->write_ctrl(bcs, 5);
602 break;
603 case L1_MODE_TRANS:
604 case L1_MODE_HDLC:
605 bcs->rcvidx = 0;
606 bcs->tx_cnt = 0;
607 bcs->tx_skb = NULL;
608 if (mode == L1_MODE_TRANS) {
609 bcs->ctrl.sr.mode = HDLC_MODE_TRANS;
610 } else {
611 bcs->ctrl.sr.mode = HDLC_MODE_ITF_FLG;
612 }
613 adapter->write_ctrl(bcs, 5);
614 bcs->ctrl.sr.cmd = HDLC_CMD_XRS;
615 adapter->write_ctrl(bcs, 1);
616 bcs->ctrl.sr.cmd = 0;
617 break;
618 }
619 bcs->mode = mode;
620}
621
622static void fritz_b_l2l1(struct hisax_if *ifc, int pr, void *arg)
623{
624 struct fritz_bcs *bcs = ifc->priv;
625 struct sk_buff *skb = arg;
626 int mode;
627
628 DBG(0x10, "pr %#x", pr);
629
630 switch (pr) {
631 case PH_DATA | REQUEST:
6dd44a74 632 BUG_ON(bcs->tx_skb);
1da177e4
LT		 633 bcs->tx_skb = skb;
634 DBG_SKB(1, skb);
635 hdlc_fill_fifo(bcs);
636 break;
637 case PH_ACTIVATE | REQUEST:
17a4506d 638 mode = (long) arg;
1da177e4
LT		 639 DBG(4,"B%d,PH_ACTIVATE_REQUEST %d", bcs->channel + 1, mode);
640 modehdlc(bcs, mode);
641 B_L1L2(bcs, PH_ACTIVATE | INDICATION, NULL);
642 break;
643 case PH_DEACTIVATE | REQUEST:
644 DBG(4,"B%d,PH_DEACTIVATE_REQUEST", bcs->channel + 1);
645 modehdlc(bcs, L1_MODE_NULL);
646 B_L1L2(bcs, PH_DEACTIVATE | INDICATION, NULL);
647 break;
648 }
649}
650
651// ----------------------------------------------------------------------
652
653static irqreturn_t
7d12e780 654fcpci2_irq(int intno, void *dev)
1da177e4
LT		 655{
656 struct fritz_adapter *adapter = dev;
657 unsigned char val;
658
659 val = inb(adapter->io + AVM_STATUS0);
660 if (!(val & AVM_STATUS0_IRQ_MASK))
661 /* hopefully a shared IRQ reqest */
662 return IRQ_NONE;
663 DBG(2, "STATUS0 %#x", val);
664 if (val & AVM_STATUS0_IRQ_ISAC)
665 isacsx_irq(&adapter->isac);
666 if (val & AVM_STATUS0_IRQ_HDLC)
667 hdlc_irq(adapter);
668 if (val & AVM_STATUS0_IRQ_ISAC)
669 isacsx_irq(&adapter->isac);
670 return IRQ_HANDLED;
671}
672
673static irqreturn_t
7d12e780 674fcpci_irq(int intno, void *dev)
1da177e4
LT		 675{
676 struct fritz_adapter *adapter = dev;
677 unsigned char sval;
678
679 sval = inb(adapter->io + 2);
680 if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK)
681 /* possibly a shared IRQ reqest */
682 return IRQ_NONE;
683 DBG(2, "sval %#x", sval);
684 if (!(sval & AVM_STATUS0_IRQ_ISAC))
685 isac_irq(&adapter->isac);
686
687 if (!(sval & AVM_STATUS0_IRQ_HDLC))
688 hdlc_irq(adapter);
689 return IRQ_HANDLED;
690}
691
692// ----------------------------------------------------------------------
693
694static inline void fcpci2_init(struct fritz_adapter *adapter)
695{
696 outb(AVM_STATUS0_RES_TIMER, adapter->io + AVM_STATUS0);
697 outb(AVM_STATUS0_ENA_IRQ, adapter->io + AVM_STATUS0);
698
699}
700
701static inline void fcpci_init(struct fritz_adapter *adapter)
702{
703 outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER |
704 AVM_STATUS0_ENA_IRQ, adapter->io + AVM_STATUS0);
705
706 outb(AVM_STATUS1_ENA_IOM | adapter->irq,
707 adapter->io + AVM_STATUS1);
708 mdelay(10);
709}
710
711// ----------------------------------------------------------------------
712
713static int __devinit fcpcipnp_setup(struct fritz_adapter *adapter)
714{
715 u32 val = 0;
716 int retval;
717
718 DBG(1,"");
719
720 isac_init(&adapter->isac); // FIXME is this okay now
721
722 retval = -EBUSY;
723 if (!request_region(adapter->io, 32, "fcpcipnp"))
724 goto err;
725
726 switch (adapter->type) {
727 case AVM_FRITZ_PCIV2:
9ba02bec 728 retval = request_irq(adapter->irq, fcpci2_irq, IRQF_SHARED,
1da177e4
LT		 729 "fcpcipnp", adapter);
730 break;
731 case AVM_FRITZ_PCI:
9ba02bec 732 retval = request_irq(adapter->irq, fcpci_irq, IRQF_SHARED,
1da177e4
LT		 733 "fcpcipnp", adapter);
734 break;
735 case AVM_FRITZ_PNP:
736 retval = request_irq(adapter->irq, fcpci_irq, 0,
737 "fcpcipnp", adapter);
738 break;
739 }
740 if (retval)
741 goto err_region;
742
743 switch (adapter->type) {
744 case AVM_FRITZ_PCIV2:
745 case AVM_FRITZ_PCI:
746 val = inl(adapter->io);
747 break;
748 case AVM_FRITZ_PNP:
749 val = inb(adapter->io);
750 val |= inb(adapter->io + 1) << 8;
751 break;
752 }
753
754 DBG(1, "stat %#x Class %X Rev %d",
755 val, val & 0xff, (val>>8) & 0xff);
756
757 spin_lock_init(&adapter->hw_lock);
758 adapter->isac.priv = adapter;
759 switch (adapter->type) {
760 case AVM_FRITZ_PCIV2:
761 adapter->isac.read_isac = &fcpci2_read_isac;
762 adapter->isac.write_isac = &fcpci2_write_isac;
763 adapter->isac.read_isac_fifo = &fcpci2_read_isac_fifo;
764 adapter->isac.write_isac_fifo = &fcpci2_write_isac_fifo;
765
766 adapter->read_hdlc_status = &fcpci2_read_hdlc_status;
767 adapter->write_ctrl = &fcpci2_write_ctrl;
768 break;
769 case AVM_FRITZ_PCI:
770 adapter->isac.read_isac = &fcpci_read_isac;
771 adapter->isac.write_isac = &fcpci_write_isac;
772 adapter->isac.read_isac_fifo = &fcpci_read_isac_fifo;
773 adapter->isac.write_isac_fifo = &fcpci_write_isac_fifo;
774
775 adapter->read_hdlc_status = &fcpci_read_hdlc_status;
776 adapter->write_ctrl = &fcpci_write_ctrl;
777 break;
778 case AVM_FRITZ_PNP:
779 adapter->isac.read_isac = &fcpci_read_isac;
780 adapter->isac.write_isac = &fcpci_write_isac;
781 adapter->isac.read_isac_fifo = &fcpci_read_isac_fifo;
782 adapter->isac.write_isac_fifo = &fcpci_write_isac_fifo;
783
784 adapter->read_hdlc_status = &fcpnp_read_hdlc_status;
785 adapter->write_ctrl = &fcpnp_write_ctrl;
786 break;
787 }
788
789 // Reset
790 outb(0, adapter->io + AVM_STATUS0);
791 mdelay(10);
792 outb(AVM_STATUS0_RESET, adapter->io + AVM_STATUS0);
793 mdelay(10);
794 outb(0, adapter->io + AVM_STATUS0);
795 mdelay(10);
796
797 switch (adapter->type) {
798 case AVM_FRITZ_PCIV2:
799 fcpci2_init(adapter);
800 isacsx_setup(&adapter->isac);
801 break;
802 case AVM_FRITZ_PCI:
803 case AVM_FRITZ_PNP:
804 fcpci_init(adapter);
805 isac_setup(&adapter->isac);
806 break;
807 }
808 val = adapter->read_hdlc_status(adapter, 0);
809 DBG(0x20, "HDLC A STA %x", val);
810 val = adapter->read_hdlc_status(adapter, 1);
811 DBG(0x20, "HDLC B STA %x", val);
812
813 adapter->bcs[0].mode = -1;
814 adapter->bcs[1].mode = -1;
815 modehdlc(&adapter->bcs[0], L1_MODE_NULL);
816 modehdlc(&adapter->bcs[1], L1_MODE_NULL);
817
818 return 0;
819
820 err_region:
821 release_region(adapter->io, 32);
822 err:
823 return retval;
824}
825
826static void __devexit fcpcipnp_release(struct fritz_adapter *adapter)
827{
828 DBG(1,"");
829
830 outb(0, adapter->io + AVM_STATUS0);
831 free_irq(adapter->irq, adapter);
832 release_region(adapter->io, 32);
833}
834
835// ----------------------------------------------------------------------
836
837static struct fritz_adapter * __devinit
838new_adapter(void)
839{
840 struct fritz_adapter *adapter;
841 struct hisax_b_if *b_if[2];
842 int i;
843
844 adapter = kmalloc(sizeof(struct fritz_adapter), GFP_KERNEL);
845 if (!adapter)
846 return NULL;
847
848 memset(adapter, 0, sizeof(struct fritz_adapter));
849
850 adapter->isac.hisax_d_if.owner = THIS_MODULE;
851 adapter->isac.hisax_d_if.ifc.priv = &adapter->isac;
852 adapter->isac.hisax_d_if.ifc.l2l1 = isac_d_l2l1;
853
854 for (i = 0; i < 2; i++) {
855 adapter->bcs[i].adapter = adapter;
856 adapter->bcs[i].channel = i;
857 adapter->bcs[i].b_if.ifc.priv = &adapter->bcs[i];
858 adapter->bcs[i].b_if.ifc.l2l1 = fritz_b_l2l1;
859 }
860
861 for (i = 0; i < 2; i++)
862 b_if[i] = &adapter->bcs[i].b_if;
863
864 hisax_register(&adapter->isac.hisax_d_if, b_if, "fcpcipnp", protocol);
865
866 return adapter;
867}
868
869static void delete_adapter(struct fritz_adapter *adapter)
870{
871 hisax_unregister(&adapter->isac.hisax_d_if);
872 kfree(adapter);
873}
874
875static int __devinit fcpci_probe(struct pci_dev *pdev,
876 const struct pci_device_id *ent)
877{
878 struct fritz_adapter *adapter;
879 int retval;
880
881 retval = -ENOMEM;
882 adapter = new_adapter();
883 if (!adapter)
884 goto err;
885
886 pci_set_drvdata(pdev, adapter);
887
888 if (pdev->device == PCI_DEVICE_ID_AVM_A1_V2)
889 adapter->type = AVM_FRITZ_PCIV2;
890 else
891 adapter->type = AVM_FRITZ_PCI;
892
893 retval = pci_enable_device(pdev);
894 if (retval)
895 goto err_free;
896
897 adapter->io = pci_resource_start(pdev, 1);
898 adapter->irq = pdev->irq;
899
900 printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at %s\n",
901 (char *) ent->driver_data, pci_name(pdev));
902
903 retval = fcpcipnp_setup(adapter);
904 if (retval)
905 goto err_free;
906
907 return 0;
908
909 err_free:
910 delete_adapter(adapter);
911 err:
912 return retval;
913}
914
915#ifdef __ISAPNP__
916static int __devinit fcpnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
917{
918 struct fritz_adapter *adapter;
919 int retval;
920
921 if (!pdev)
922 return(-ENODEV);
923
924 retval = -ENOMEM;
925 adapter = new_adapter();
926 if (!adapter)
927 goto err;
928
929 pnp_set_drvdata(pdev, adapter);
930
931 adapter->type = AVM_FRITZ_PNP;
932
933 pnp_disable_dev(pdev);
934 retval = pnp_activate_dev(pdev);
935 if (retval < 0) {
936 printk(KERN_WARNING "%s: pnp_activate_dev(%s) ret(%d)\n", __FUNCTION__,
937 (char *)dev_id->driver_data, retval);
938 goto err_free;
939 }
940 adapter->io = pnp_port_start(pdev, 0);
941 adapter->irq = pnp_irq(pdev, 0);
942
943 printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at IO %#x irq %d\n",
944 (char *) dev_id->driver_data, adapter->io, adapter->irq);
945
946 retval = fcpcipnp_setup(adapter);
947 if (retval)
948 goto err_free;
949
950 return 0;
951
952 err_free:
953 delete_adapter(adapter);
954 err:
955 return retval;
956}
957
958static void __devexit fcpnp_remove(struct pnp_dev *pdev)
959{
960 struct fritz_adapter *adapter = pnp_get_drvdata(pdev);
961
962 if (adapter) {
963 fcpcipnp_release(adapter);
964 delete_adapter(adapter);
965 }
966 pnp_disable_dev(pdev);
967}
968
969static struct pnp_driver fcpnp_driver = {
970 .name = "fcpnp",
971 .probe = fcpnp_probe,
972 .remove = __devexit_p(fcpnp_remove),
973 .id_table = fcpnp_ids,
974};
975#endif
976
977static void __devexit fcpci_remove(struct pci_dev *pdev)
978{
979 struct fritz_adapter *adapter = pci_get_drvdata(pdev);
980
981 fcpcipnp_release(adapter);
982 pci_disable_device(pdev);
983 delete_adapter(adapter);
984}
985
986static struct pci_driver fcpci_driver = {
987 .name = "fcpci",
988 .probe = fcpci_probe,
989 .remove = __devexit_p(fcpci_remove),
990 .id_table = fcpci_ids,
991};
992
993static int __init hisax_fcpcipnp_init(void)
994{
995 int retval;
996
997 printk(KERN_INFO "hisax_fcpcipnp: Fritz!Card PCI/PCIv2/PnP ISDN driver v0.0.1\n");
998
999 retval = pci_register_driver(&fcpci_driver);
1000 if (retval)
17a4506d 1001 return retval;
1da177e4
LT		 1002#ifdef __ISAPNP__
1003 retval = pnp_register_driver(&fcpnp_driver);
17a4506d
AC		 1004 if (retval < 0) {
1005 pci_unregister_driver(&fcpci_driver);
1006 return retval;
1007 }
1da177e4
LT		 1008#endif
1009 return 0;
1da177e4
LT		 1010}
1011
1012static void __exit hisax_fcpcipnp_exit(void)
1013{
1014#ifdef __ISAPNP__
1015 pnp_unregister_driver(&fcpnp_driver);
1016#endif
1017 pci_unregister_driver(&fcpci_driver);
1018}
1019
1020module_init(hisax_fcpcipnp_init);
1021module_exit(hisax_fcpcipnp_exit);
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