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usb: xhci-plat: properly handle probe deferral for devm_clk_get()
[linux/fpc-iii.git] / drivers / isdn / hisax / hisax_fcpcipnp.c
blob5e8a5d967162e919f5db3856e3f897e71718c593
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
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/interrupt.h>
29 #include <linux/pci.h>
30 #include <linux/isapnp.h>
31 #include <linux/kmod.h>
32 #include <linux/slab.h>
33 #include <linux/skbuff.h>
34 #include <linux/netdevice.h>
35 #include <linux/delay.h>
36
37 #include <asm/io.h>
38
39 #include "hisax_fcpcipnp.h"
40
41 // debugging cruft
42 #define __debug_variable debug
43 #include "hisax_debug.h"
44
45 #ifdef CONFIG_HISAX_DEBUG
46 static int debug = 0;
47 /* static int hdlcfifosize = 32; */
48 module_param(debug, int, 0);
49 /* module_param(hdlcfifosize, int, 0); */
50 #endif
51
52 MODULE_AUTHOR("Kai Germaschewski <kai.germaschewski@gmx.de>/Karsten Keil <kkeil@suse.de>");
53 MODULE_DESCRIPTION("AVM Fritz!PCI/PnP ISDN driver");
54
55 static struct pci_device_id fcpci_ids[] = {
56 { .vendor = PCI_VENDOR_ID_AVM,
57 .device = PCI_DEVICE_ID_AVM_A1,
58 .subvendor = PCI_ANY_ID,
59 .subdevice = PCI_ANY_ID,
60 .driver_data = (unsigned long) "Fritz!Card PCI",
61 },
62 { .vendor = PCI_VENDOR_ID_AVM,
63 .device = PCI_DEVICE_ID_AVM_A1_V2,
64 .subvendor = PCI_ANY_ID,
65 .subdevice = PCI_ANY_ID,
66 .driver_data = (unsigned long) "Fritz!Card PCI v2" },
67 {}
68 };
69
70 MODULE_DEVICE_TABLE(pci, fcpci_ids);
71
72 #ifdef CONFIG_PNP
73 static struct pnp_device_id fcpnp_ids[] = {
74 {
75 .id = "AVM0900",
76 .driver_data = (unsigned long) "Fritz!Card PnP",
77 },
78 { .id = "" }
79 };
80
81 MODULE_DEVICE_TABLE(pnp, fcpnp_ids);
82 #endif
83
84 static int protocol = 2; /* EURO-ISDN Default */
85 module_param(protocol, int, 0);
86 MODULE_LICENSE("GPL");
87
88 // ----------------------------------------------------------------------
89
90 #define AVM_INDEX 0x04
91 #define AVM_DATA 0x10
92
93 #define AVM_IDX_HDLC_1 0x00
94 #define AVM_IDX_HDLC_2 0x01
95 #define AVM_IDX_ISAC_FIFO 0x02
96 #define AVM_IDX_ISAC_REG_LOW 0x04
97 #define AVM_IDX_ISAC_REG_HIGH 0x06
98
99 #define AVM_STATUS0 0x02
100
101 #define AVM_STATUS0_IRQ_ISAC 0x01
102 #define AVM_STATUS0_IRQ_HDLC 0x02
103 #define AVM_STATUS0_IRQ_TIMER 0x04
104 #define AVM_STATUS0_IRQ_MASK 0x07
105
106 #define AVM_STATUS0_RESET 0x01
107 #define AVM_STATUS0_DIS_TIMER 0x02
108 #define AVM_STATUS0_RES_TIMER 0x04
109 #define AVM_STATUS0_ENA_IRQ 0x08
110 #define AVM_STATUS0_TESTBIT 0x10
111
112 #define AVM_STATUS1 0x03
113 #define AVM_STATUS1_ENA_IOM 0x80
114
115 #define HDLC_FIFO 0x0
116 #define HDLC_STATUS 0x4
117 #define HDLC_CTRL 0x4
118
119 #define HDLC_MODE_ITF_FLG 0x01
120 #define HDLC_MODE_TRANS 0x02
121 #define HDLC_MODE_CCR_7 0x04
122 #define HDLC_MODE_CCR_16 0x08
123 #define HDLC_MODE_TESTLOOP 0x80
124
125 #define HDLC_INT_XPR 0x80
126 #define HDLC_INT_XDU 0x40
127 #define HDLC_INT_RPR 0x20
128 #define HDLC_INT_MASK 0xE0
129
130 #define HDLC_STAT_RME 0x01
131 #define HDLC_STAT_RDO 0x10
132 #define HDLC_STAT_CRCVFRRAB 0x0E
133 #define HDLC_STAT_CRCVFR 0x06
134 #define HDLC_STAT_RML_MASK 0xff00
135
136 #define HDLC_CMD_XRS 0x80
137 #define HDLC_CMD_XME 0x01
138 #define HDLC_CMD_RRS 0x20
139 #define HDLC_CMD_XML_MASK 0xff00
140
141 #define AVM_HDLC_FIFO_1 0x10
142 #define AVM_HDLC_FIFO_2 0x18
143
144 #define AVM_HDLC_STATUS_1 0x14
145 #define AVM_HDLC_STATUS_2 0x1c
146
147 #define AVM_ISACSX_INDEX 0x04
148 #define AVM_ISACSX_DATA 0x08
149
150 // ----------------------------------------------------------------------
151 // Fritz!PCI
152
153 static unsigned char fcpci_read_isac(struct isac *isac, unsigned char offset)
154 {
155 struct fritz_adapter *adapter = isac->priv;
156 unsigned char idx = (offset > 0x2f) ?
157 AVM_IDX_ISAC_REG_HIGH : AVM_IDX_ISAC_REG_LOW;
158 unsigned char val;
159 unsigned long flags;
160
161 spin_lock_irqsave(&adapter->hw_lock, flags);
162 outb(idx, adapter->io + AVM_INDEX);
163 val = inb(adapter->io + AVM_DATA + (offset & 0xf));
164 spin_unlock_irqrestore(&adapter->hw_lock, flags);
165 DBG(0x1000, " port %#x, value %#x",
166 offset, val);
167 return val;
168 }
169
170 static void fcpci_write_isac(struct isac *isac, unsigned char offset,
171 unsigned char value)
172 {
173 struct fritz_adapter *adapter = isac->priv;
174 unsigned char idx = (offset > 0x2f) ?
175 AVM_IDX_ISAC_REG_HIGH : AVM_IDX_ISAC_REG_LOW;
176 unsigned long flags;
177
178 DBG(0x1000, " port %#x, value %#x",
179 offset, value);
180 spin_lock_irqsave(&adapter->hw_lock, flags);
181 outb(idx, adapter->io + AVM_INDEX);
182 outb(value, adapter->io + AVM_DATA + (offset & 0xf));
183 spin_unlock_irqrestore(&adapter->hw_lock, flags);
184 }
185
186 static void fcpci_read_isac_fifo(struct isac *isac, unsigned char *data,
187 int size)
188 {
189 struct fritz_adapter *adapter = isac->priv;
190 unsigned long flags;
191
192 spin_lock_irqsave(&adapter->hw_lock, flags);
193 outb(AVM_IDX_ISAC_FIFO, adapter->io + AVM_INDEX);
194 insb(adapter->io + AVM_DATA, data, size);
195 spin_unlock_irqrestore(&adapter->hw_lock, flags);
196 }
197
198 static void fcpci_write_isac_fifo(struct isac *isac, unsigned char *data,
199 int size)
200 {
201 struct fritz_adapter *adapter = isac->priv;
202 unsigned long flags;
203
204 spin_lock_irqsave(&adapter->hw_lock, flags);
205 outb(AVM_IDX_ISAC_FIFO, adapter->io + AVM_INDEX);
206 outsb(adapter->io + AVM_DATA, data, size);
207 spin_unlock_irqrestore(&adapter->hw_lock, flags);
208 }
209
210 static u32 fcpci_read_hdlc_status(struct fritz_adapter *adapter, int nr)
211 {
212 u32 val;
213 int idx = nr ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
214 unsigned long flags;
215
216 spin_lock_irqsave(&adapter->hw_lock, flags);
217 outl(idx, adapter->io + AVM_INDEX);
218 val = inl(adapter->io + AVM_DATA + HDLC_STATUS);
219 spin_unlock_irqrestore(&adapter->hw_lock, flags);
220 return val;
221 }
222
223 static void __fcpci_write_ctrl(struct fritz_bcs *bcs, int which)
224 {
225 struct fritz_adapter *adapter = bcs->adapter;
226 int idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
227
228 DBG(0x40, "hdlc %c wr%x ctrl %x",
229 'A' + bcs->channel, which, bcs->ctrl.ctrl);
230
231 outl(idx, adapter->io + AVM_INDEX);
232 outl(bcs->ctrl.ctrl, adapter->io + AVM_DATA + HDLC_CTRL);
233 }
234
235 static void fcpci_write_ctrl(struct fritz_bcs *bcs, int which)
236 {
237 struct fritz_adapter *adapter = bcs->adapter;
238 unsigned long flags;
239
240 spin_lock_irqsave(&adapter->hw_lock, flags);
241 __fcpci_write_ctrl(bcs, which);
242 spin_unlock_irqrestore(&adapter->hw_lock, flags);
243 }
244
245 // ----------------------------------------------------------------------
246 // Fritz!PCI v2
247
248 static unsigned char fcpci2_read_isac(struct isac *isac, unsigned char offset)
249 {
250 struct fritz_adapter *adapter = isac->priv;
251 unsigned char val;
252 unsigned long flags;
253
254 spin_lock_irqsave(&adapter->hw_lock, flags);
255 outl(offset, adapter->io + AVM_ISACSX_INDEX);
256 val = inl(adapter->io + AVM_ISACSX_DATA);
257 spin_unlock_irqrestore(&adapter->hw_lock, flags);
258 DBG(0x1000, " port %#x, value %#x",
259 offset, val);
260
261 return val;
262 }
263
264 static void fcpci2_write_isac(struct isac *isac, unsigned char offset,
265 unsigned char value)
266 {
267 struct fritz_adapter *adapter = isac->priv;
268 unsigned long flags;
269
270 DBG(0x1000, " port %#x, value %#x",
271 offset, value);
272 spin_lock_irqsave(&adapter->hw_lock, flags);
273 outl(offset, adapter->io + AVM_ISACSX_INDEX);
274 outl(value, adapter->io + AVM_ISACSX_DATA);
275 spin_unlock_irqrestore(&adapter->hw_lock, flags);
276 }
277
278 static void fcpci2_read_isac_fifo(struct isac *isac, unsigned char *data,
279 int size)
280 {
281 struct fritz_adapter *adapter = isac->priv;
282 int i;
283 unsigned long flags;
284
285 spin_lock_irqsave(&adapter->hw_lock, flags);
286 outl(0, adapter->io + AVM_ISACSX_INDEX);
287 for (i = 0; i < size; i++)
288 data[i] = inl(adapter->io + AVM_ISACSX_DATA);
289 spin_unlock_irqrestore(&adapter->hw_lock, flags);
290 }
291
292 static void fcpci2_write_isac_fifo(struct isac *isac, unsigned char *data,
293 int size)
294 {
295 struct fritz_adapter *adapter = isac->priv;
296 int i;
297 unsigned long flags;
298
299 spin_lock_irqsave(&adapter->hw_lock, flags);
300 outl(0, adapter->io + AVM_ISACSX_INDEX);
301 for (i = 0; i < size; i++)
302 outl(data[i], adapter->io + AVM_ISACSX_DATA);
303 spin_unlock_irqrestore(&adapter->hw_lock, flags);
304 }
305
306 static u32 fcpci2_read_hdlc_status(struct fritz_adapter *adapter, int nr)
307 {
308 int offset = nr ? AVM_HDLC_STATUS_2 : AVM_HDLC_STATUS_1;
309
310 return inl(adapter->io + offset);
311 }
312
313 static void fcpci2_write_ctrl(struct fritz_bcs *bcs, int which)
314 {
315 struct fritz_adapter *adapter = bcs->adapter;
316 int offset = bcs->channel ? AVM_HDLC_STATUS_2 : AVM_HDLC_STATUS_1;
317
318 DBG(0x40, "hdlc %c wr%x ctrl %x",
319 'A' + bcs->channel, which, bcs->ctrl.ctrl);
320
321 outl(bcs->ctrl.ctrl, adapter->io + offset);
322 }
323
324 // ----------------------------------------------------------------------
325 // Fritz!PnP (ISAC access as for Fritz!PCI)
326
327 static u32 fcpnp_read_hdlc_status(struct fritz_adapter *adapter, int nr)
328 {
329 unsigned char idx = nr ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
330 u32 val;
331 unsigned long flags;
332
333 spin_lock_irqsave(&adapter->hw_lock, flags);
334 outb(idx, adapter->io + AVM_INDEX);
335 val = inb(adapter->io + AVM_DATA + HDLC_STATUS);
336 if (val & HDLC_INT_RPR)
337 val |= inb(adapter->io + AVM_DATA + HDLC_STATUS + 1) << 8;
338 spin_unlock_irqrestore(&adapter->hw_lock, flags);
339 return val;
340 }
341
342 static void __fcpnp_write_ctrl(struct fritz_bcs *bcs, int which)
343 {
344 struct fritz_adapter *adapter = bcs->adapter;
345 unsigned char idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
346
347 DBG(0x40, "hdlc %c wr%x ctrl %x",
348 'A' + bcs->channel, which, bcs->ctrl.ctrl);
349
350 outb(idx, adapter->io + AVM_INDEX);
351 if (which & 4)
352 outb(bcs->ctrl.sr.mode,
353 adapter->io + AVM_DATA + HDLC_STATUS + 2);
354 if (which & 2)
355 outb(bcs->ctrl.sr.xml,
356 adapter->io + AVM_DATA + HDLC_STATUS + 1);
357 if (which & 1)
358 outb(bcs->ctrl.sr.cmd,
359 adapter->io + AVM_DATA + HDLC_STATUS + 0);
360 }
361
362 static void fcpnp_write_ctrl(struct fritz_bcs *bcs, int which)
363 {
364 struct fritz_adapter *adapter = bcs->adapter;
365 unsigned long flags;
366
367 spin_lock_irqsave(&adapter->hw_lock, flags);
368 __fcpnp_write_ctrl(bcs, which);
369 spin_unlock_irqrestore(&adapter->hw_lock, flags);
370 }
371
372 // ----------------------------------------------------------------------
373
374 static inline void B_L1L2(struct fritz_bcs *bcs, int pr, void *arg)
375 {
376 struct hisax_if *ifc = (struct hisax_if *) &bcs->b_if;
377
378 DBG(2, "pr %#x", pr);
379 ifc->l1l2(ifc, pr, arg);
380 }
381
382 static void hdlc_fill_fifo(struct fritz_bcs *bcs)
383 {
384 struct fritz_adapter *adapter = bcs->adapter;
385 struct sk_buff *skb = bcs->tx_skb;
386 int count;
387 unsigned long flags;
388 unsigned char *p;
389
390 DBG(0x40, "hdlc_fill_fifo");
391
392 BUG_ON(skb->len == 0);
393
394 bcs->ctrl.sr.cmd &= ~HDLC_CMD_XME;
395 if (bcs->tx_skb->len > bcs->fifo_size) {
396 count = bcs->fifo_size;
397 } else {
398 count = bcs->tx_skb->len;
399 if (bcs->mode != L1_MODE_TRANS)
400 bcs->ctrl.sr.cmd |= HDLC_CMD_XME;
401 }
402 DBG(0x40, "hdlc_fill_fifo %d/%d", count, bcs->tx_skb->len);
403 p = bcs->tx_skb->data;
404 skb_pull(bcs->tx_skb, count);
405 bcs->tx_cnt += count;
406 bcs->ctrl.sr.xml = ((count == bcs->fifo_size) ? 0 : count);
407
408 switch (adapter->type) {
409 case AVM_FRITZ_PCI:
410 spin_lock_irqsave(&adapter->hw_lock, flags);
411 // sets the correct AVM_INDEX, too
412 __fcpci_write_ctrl(bcs, 3);
413 outsl(adapter->io + AVM_DATA + HDLC_FIFO,
414 p, (count + 3) / 4);
415 spin_unlock_irqrestore(&adapter->hw_lock, flags);
416 break;
417 case AVM_FRITZ_PCIV2:
418 fcpci2_write_ctrl(bcs, 3);
419 outsl(adapter->io +
420 (bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
421 p, (count + 3) / 4);
422 break;
423 case AVM_FRITZ_PNP:
424 spin_lock_irqsave(&adapter->hw_lock, flags);
425 // sets the correct AVM_INDEX, too
426 __fcpnp_write_ctrl(bcs, 3);
427 outsb(adapter->io + AVM_DATA, p, count);
428 spin_unlock_irqrestore(&adapter->hw_lock, flags);
429 break;
430 }
431 }
432
433 static inline void hdlc_empty_fifo(struct fritz_bcs *bcs, int count)
434 {
435 struct fritz_adapter *adapter = bcs->adapter;
436 unsigned char *p;
437 unsigned char idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
438
439 DBG(0x10, "hdlc_empty_fifo %d", count);
440 if (bcs->rcvidx + count > HSCX_BUFMAX) {
441 DBG(0x10, "hdlc_empty_fifo: incoming packet too large");
442 return;
443 }
444 p = bcs->rcvbuf + bcs->rcvidx;
445 bcs->rcvidx += count;
446 switch (adapter->type) {
447 case AVM_FRITZ_PCI:
448 spin_lock(&adapter->hw_lock);
449 outl(idx, adapter->io + AVM_INDEX);
450 insl(adapter->io + AVM_DATA + HDLC_FIFO,
451 p, (count + 3) / 4);
452 spin_unlock(&adapter->hw_lock);
453 break;
454 case AVM_FRITZ_PCIV2:
455 insl(adapter->io +
456 (bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
457 p, (count + 3) / 4);
458 break;
459 case AVM_FRITZ_PNP:
460 spin_lock(&adapter->hw_lock);
461 outb(idx, adapter->io + AVM_INDEX);
462 insb(adapter->io + AVM_DATA, p, count);
463 spin_unlock(&adapter->hw_lock);
464 break;
465 }
466 }
467
468 static inline void hdlc_rpr_irq(struct fritz_bcs *bcs, u32 stat)
469 {
470 struct fritz_adapter *adapter = bcs->adapter;
471 struct sk_buff *skb;
472 int len;
473
474 if (stat & HDLC_STAT_RDO) {
475 DBG(0x10, "RDO");
476 bcs->ctrl.sr.xml = 0;
477 bcs->ctrl.sr.cmd |= HDLC_CMD_RRS;
478 adapter->write_ctrl(bcs, 1);
479 bcs->ctrl.sr.cmd &= ~HDLC_CMD_RRS;
480 adapter->write_ctrl(bcs, 1);
481 bcs->rcvidx = 0;
482 return;
483 }
484
485 len = (stat & HDLC_STAT_RML_MASK) >> 8;
486 if (len == 0)
487 len = bcs->fifo_size;
488
489 hdlc_empty_fifo(bcs, len);
490
491 if ((stat & HDLC_STAT_RME) || (bcs->mode == L1_MODE_TRANS)) {
492 if (((stat & HDLC_STAT_CRCVFRRAB) == HDLC_STAT_CRCVFR) ||
493 (bcs->mode == L1_MODE_TRANS)) {
494 skb = dev_alloc_skb(bcs->rcvidx);
495 if (!skb) {
496 printk(KERN_WARNING "HDLC: receive out of memory\n");
497 } else {
498 memcpy(skb_put(skb, bcs->rcvidx), bcs->rcvbuf,
499 bcs->rcvidx);
500 DBG_SKB(1, skb);
501 B_L1L2(bcs, PH_DATA | INDICATION, skb);
502 }
503 bcs->rcvidx = 0;
504 } else {
505 DBG(0x10, "ch%d invalid frame %#x",
506 bcs->channel, stat);
507 bcs->rcvidx = 0;
508 }
509 }
510 }
511
512 static inline void hdlc_xdu_irq(struct fritz_bcs *bcs)
513 {
514 struct fritz_adapter *adapter = bcs->adapter;
515
516
517 /* Here we lost an TX interrupt, so
518 * restart transmitting the whole frame.
519 */
520 bcs->ctrl.sr.xml = 0;
521 bcs->ctrl.sr.cmd |= HDLC_CMD_XRS;
522 adapter->write_ctrl(bcs, 1);
523 bcs->ctrl.sr.cmd &= ~HDLC_CMD_XRS;
524
525 if (!bcs->tx_skb) {
526 DBG(0x10, "XDU without skb");
527 adapter->write_ctrl(bcs, 1);
528 return;
529 }
530 /* only hdlc restarts the frame, transparent mode must continue */
531 if (bcs->mode == L1_MODE_HDLC) {
532 skb_push(bcs->tx_skb, bcs->tx_cnt);
533 bcs->tx_cnt = 0;
534 }
535 }
536
537 static inline void hdlc_xpr_irq(struct fritz_bcs *bcs)
538 {
539 struct sk_buff *skb;
540
541 skb = bcs->tx_skb;
542 if (!skb)
543 return;
544
545 if (skb->len) {
546 hdlc_fill_fifo(bcs);
547 return;
548 }
549 bcs->tx_cnt = 0;
550 bcs->tx_skb = NULL;
551 B_L1L2(bcs, PH_DATA | CONFIRM, (void *)(unsigned long)skb->truesize);
552 dev_kfree_skb_irq(skb);
553 }
554
555 static void hdlc_irq_one(struct fritz_bcs *bcs, u32 stat)
556 {
557 DBG(0x10, "ch%d stat %#x", bcs->channel, stat);
558 if (stat & HDLC_INT_RPR) {
559 DBG(0x10, "RPR");
560 hdlc_rpr_irq(bcs, stat);
561 }
562 if (stat & HDLC_INT_XDU) {
563 DBG(0x10, "XDU");
564 hdlc_xdu_irq(bcs);
565 hdlc_xpr_irq(bcs);
566 return;
567 }
568 if (stat & HDLC_INT_XPR) {
569 DBG(0x10, "XPR");
570 hdlc_xpr_irq(bcs);
571 }
572 }
573
574 static inline void hdlc_irq(struct fritz_adapter *adapter)
575 {
576 int nr;
577 u32 stat;
578
579 for (nr = 0; nr < 2; nr++) {
580 stat = adapter->read_hdlc_status(adapter, nr);
581 DBG(0x10, "HDLC %c stat %#x", 'A' + nr, stat);
582 if (stat & HDLC_INT_MASK)
583 hdlc_irq_one(&adapter->bcs[nr], stat);
584 }
585 }
586
587 static void modehdlc(struct fritz_bcs *bcs, int mode)
588 {
589 struct fritz_adapter *adapter = bcs->adapter;
590
591 DBG(0x40, "hdlc %c mode %d --> %d",
592 'A' + bcs->channel, bcs->mode, mode);
593
594 if (bcs->mode == mode)
595 return;
596
597 bcs->fifo_size = 32;
598 bcs->ctrl.ctrl = 0;
599 bcs->ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
600 switch (mode) {
601 case L1_MODE_NULL:
602 bcs->ctrl.sr.mode = HDLC_MODE_TRANS;
603 adapter->write_ctrl(bcs, 5);
604 break;
605 case L1_MODE_TRANS:
606 case L1_MODE_HDLC:
607 bcs->rcvidx = 0;
608 bcs->tx_cnt = 0;
609 bcs->tx_skb = NULL;
610 if (mode == L1_MODE_TRANS) {
611 bcs->ctrl.sr.mode = HDLC_MODE_TRANS;
612 } else {
613 bcs->ctrl.sr.mode = HDLC_MODE_ITF_FLG;
614 }
615 adapter->write_ctrl(bcs, 5);
616 bcs->ctrl.sr.cmd = HDLC_CMD_XRS;
617 adapter->write_ctrl(bcs, 1);
618 bcs->ctrl.sr.cmd = 0;
619 break;
620 }
621 bcs->mode = mode;
622 }
623
624 static void fritz_b_l2l1(struct hisax_if *ifc, int pr, void *arg)
625 {
626 struct fritz_bcs *bcs = ifc->priv;
627 struct sk_buff *skb = arg;
628 int mode;
629
630 DBG(0x10, "pr %#x", pr);
631
632 switch (pr) {
633 case PH_DATA | REQUEST:
634 BUG_ON(bcs->tx_skb);
635 bcs->tx_skb = skb;
636 DBG_SKB(1, skb);
637 hdlc_fill_fifo(bcs);
638 break;
639 case PH_ACTIVATE | REQUEST:
640 mode = (long) arg;
641 DBG(4, "B%d,PH_ACTIVATE_REQUEST %d", bcs->channel + 1, mode);
642 modehdlc(bcs, mode);
643 B_L1L2(bcs, PH_ACTIVATE | INDICATION, NULL);
644 break;
645 case PH_DEACTIVATE | REQUEST:
646 DBG(4, "B%d,PH_DEACTIVATE_REQUEST", bcs->channel + 1);
647 modehdlc(bcs, L1_MODE_NULL);
648 B_L1L2(bcs, PH_DEACTIVATE | INDICATION, NULL);
649 break;
650 }
651 }
652
653 // ----------------------------------------------------------------------
654
655 static irqreturn_t
656 fcpci2_irq(int intno, void *dev)
657 {
658 struct fritz_adapter *adapter = dev;
659 unsigned char val;
660
661 val = inb(adapter->io + AVM_STATUS0);
662 if (!(val & AVM_STATUS0_IRQ_MASK))
663 /* hopefully a shared IRQ reqest */
664 return IRQ_NONE;
665 DBG(2, "STATUS0 %#x", val);
666 if (val & AVM_STATUS0_IRQ_ISAC)
667 isacsx_irq(&adapter->isac);
668 if (val & AVM_STATUS0_IRQ_HDLC)
669 hdlc_irq(adapter);
670 if (val & AVM_STATUS0_IRQ_ISAC)
671 isacsx_irq(&adapter->isac);
672 return IRQ_HANDLED;
673 }
674
675 static irqreturn_t
676 fcpci_irq(int intno, void *dev)
677 {
678 struct fritz_adapter *adapter = dev;
679 unsigned char sval;
680
681 sval = inb(adapter->io + 2);
682 if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK)
683 /* possibly a shared IRQ reqest */
684 return IRQ_NONE;
685 DBG(2, "sval %#x", sval);
686 if (!(sval & AVM_STATUS0_IRQ_ISAC))
687 isac_irq(&adapter->isac);
688
689 if (!(sval & AVM_STATUS0_IRQ_HDLC))
690 hdlc_irq(adapter);
691 return IRQ_HANDLED;
692 }
693
694 // ----------------------------------------------------------------------
695
696 static inline void fcpci2_init(struct fritz_adapter *adapter)
697 {
698 outb(AVM_STATUS0_RES_TIMER, adapter->io + AVM_STATUS0);
699 outb(AVM_STATUS0_ENA_IRQ, adapter->io + AVM_STATUS0);
700
701 }
702
703 static inline void fcpci_init(struct fritz_adapter *adapter)
704 {
705 outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER |
706 AVM_STATUS0_ENA_IRQ, adapter->io + AVM_STATUS0);
707
708 outb(AVM_STATUS1_ENA_IOM | adapter->irq,
709 adapter->io + AVM_STATUS1);
710 mdelay(10);
711 }
712
713 // ----------------------------------------------------------------------
714
715 static int fcpcipnp_setup(struct fritz_adapter *adapter)
716 {
717 u32 val = 0;
718 int retval;
719
720 DBG(1, "");
721
722 isac_init(&adapter->isac); // FIXME is this okay now
723
724 retval = -EBUSY;
725 if (!request_region(adapter->io, 32, "fcpcipnp"))
726 goto err;
727
728 switch (adapter->type) {
729 case AVM_FRITZ_PCIV2:
730 case AVM_FRITZ_PCI:
731 val = inl(adapter->io);
732 break;
733 case AVM_FRITZ_PNP:
734 val = inb(adapter->io);
735 val |= inb(adapter->io + 1) << 8;
736 break;
737 }
738
739 DBG(1, "stat %#x Class %X Rev %d",
740 val, val & 0xff, (val >> 8) & 0xff);
741
742 spin_lock_init(&adapter->hw_lock);
743 adapter->isac.priv = adapter;
744 switch (adapter->type) {
745 case AVM_FRITZ_PCIV2:
746 adapter->isac.read_isac = &fcpci2_read_isac;
747 adapter->isac.write_isac = &fcpci2_write_isac;
748 adapter->isac.read_isac_fifo = &fcpci2_read_isac_fifo;
749 adapter->isac.write_isac_fifo = &fcpci2_write_isac_fifo;
750
751 adapter->read_hdlc_status = &fcpci2_read_hdlc_status;
752 adapter->write_ctrl = &fcpci2_write_ctrl;
753 break;
754 case AVM_FRITZ_PCI:
755 adapter->isac.read_isac = &fcpci_read_isac;
756 adapter->isac.write_isac = &fcpci_write_isac;
757 adapter->isac.read_isac_fifo = &fcpci_read_isac_fifo;
758 adapter->isac.write_isac_fifo = &fcpci_write_isac_fifo;
759
760 adapter->read_hdlc_status = &fcpci_read_hdlc_status;
761 adapter->write_ctrl = &fcpci_write_ctrl;
762 break;
763 case AVM_FRITZ_PNP:
764 adapter->isac.read_isac = &fcpci_read_isac;
765 adapter->isac.write_isac = &fcpci_write_isac;
766 adapter->isac.read_isac_fifo = &fcpci_read_isac_fifo;
767 adapter->isac.write_isac_fifo = &fcpci_write_isac_fifo;
768
769 adapter->read_hdlc_status = &fcpnp_read_hdlc_status;
770 adapter->write_ctrl = &fcpnp_write_ctrl;
771 break;
772 }
773
774 // Reset
775 outb(0, adapter->io + AVM_STATUS0);
776 mdelay(10);
777 outb(AVM_STATUS0_RESET, adapter->io + AVM_STATUS0);
778 mdelay(10);
779 outb(0, adapter->io + AVM_STATUS0);
780 mdelay(10);
781
782 switch (adapter->type) {
783 case AVM_FRITZ_PCIV2:
784 retval = request_irq(adapter->irq, fcpci2_irq, IRQF_SHARED,
785 "fcpcipnp", adapter);
786 break;
787 case AVM_FRITZ_PCI:
788 retval = request_irq(adapter->irq, fcpci_irq, IRQF_SHARED,
789 "fcpcipnp", adapter);
790 break;
791 case AVM_FRITZ_PNP:
792 retval = request_irq(adapter->irq, fcpci_irq, 0,
793 "fcpcipnp", adapter);
794 break;
795 }
796 if (retval)
797 goto err_region;
798
799 switch (adapter->type) {
800 case AVM_FRITZ_PCIV2:
801 fcpci2_init(adapter);
802 isacsx_setup(&adapter->isac);
803 break;
804 case AVM_FRITZ_PCI:
805 case AVM_FRITZ_PNP:
806 fcpci_init(adapter);
807 isac_setup(&adapter->isac);
808 break;
809 }
810 val = adapter->read_hdlc_status(adapter, 0);
811 DBG(0x20, "HDLC A STA %x", val);
812 val = adapter->read_hdlc_status(adapter, 1);
813 DBG(0x20, "HDLC B STA %x", val);
814
815 adapter->bcs[0].mode = -1;
816 adapter->bcs[1].mode = -1;
817 modehdlc(&adapter->bcs[0], L1_MODE_NULL);
818 modehdlc(&adapter->bcs[1], L1_MODE_NULL);
819
820 return 0;
821
822 err_region:
823 release_region(adapter->io, 32);
824 err:
825 return retval;
826 }
827
828 static void fcpcipnp_release(struct fritz_adapter *adapter)
829 {
830 DBG(1, "");
831
832 outb(0, adapter->io + AVM_STATUS0);
833 free_irq(adapter->irq, adapter);
834 release_region(adapter->io, 32);
835 }
836
837 // ----------------------------------------------------------------------
838
839 static struct fritz_adapter *new_adapter(void)
840 {
841 struct fritz_adapter *adapter;
842 struct hisax_b_if *b_if[2];
843 int i;
844
845 adapter = kzalloc(sizeof(struct fritz_adapter), GFP_KERNEL);
846 if (!adapter)
847 return NULL;
848
849 adapter->isac.hisax_d_if.owner = THIS_MODULE;
850 adapter->isac.hisax_d_if.ifc.priv = &adapter->isac;
851 adapter->isac.hisax_d_if.ifc.l2l1 = isac_d_l2l1;
852
853 for (i = 0; i < 2; i++) {
854 adapter->bcs[i].adapter = adapter;
855 adapter->bcs[i].channel = i;
856 adapter->bcs[i].b_if.ifc.priv = &adapter->bcs[i];
857 adapter->bcs[i].b_if.ifc.l2l1 = fritz_b_l2l1;
858 }
859
860 for (i = 0; i < 2; i++)
861 b_if[i] = &adapter->bcs[i].b_if;
862
863 if (hisax_register(&adapter->isac.hisax_d_if, b_if, "fcpcipnp",
864 protocol) != 0) {
865 kfree(adapter);
866 adapter = NULL;
867 }
868
869 return adapter;
870 }
871
872 static void delete_adapter(struct fritz_adapter *adapter)
873 {
874 hisax_unregister(&adapter->isac.hisax_d_if);
875 kfree(adapter);
876 }
877
878 static int fcpci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
879 {
880 struct fritz_adapter *adapter;
881 int retval;
882
883 retval = -ENOMEM;
884 adapter = new_adapter();
885 if (!adapter)
886 goto err;
887
888 pci_set_drvdata(pdev, adapter);
889
890 if (pdev->device == PCI_DEVICE_ID_AVM_A1_V2)
891 adapter->type = AVM_FRITZ_PCIV2;
892 else
893 adapter->type = AVM_FRITZ_PCI;
894
895 retval = pci_enable_device(pdev);
896 if (retval)
897 goto err_free;
898
899 adapter->io = pci_resource_start(pdev, 1);
900 adapter->irq = pdev->irq;
901
902 printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at %s\n",
903 (char *) ent->driver_data, pci_name(pdev));
904
905 retval = fcpcipnp_setup(adapter);
906 if (retval)
907 goto err_free;
908
909 return 0;
910
911 err_free:
912 delete_adapter(adapter);
913 err:
914 return retval;
915 }
916
917 #ifdef CONFIG_PNP
918 static int fcpnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
919 {
920 struct fritz_adapter *adapter;
921 int retval;
922
923 if (!pdev)
924 return (-ENODEV);
925
926 retval = -ENOMEM;
927 adapter = new_adapter();
928 if (!adapter)
929 goto err;
930
931 pnp_set_drvdata(pdev, adapter);
932
933 adapter->type = AVM_FRITZ_PNP;
934
935 pnp_disable_dev(pdev);
936 retval = pnp_activate_dev(pdev);
937 if (retval < 0) {
938 printk(KERN_WARNING "%s: pnp_activate_dev(%s) ret(%d)\n", __func__,
939 (char *)dev_id->driver_data, retval);
940 goto err_free;
941 }
942 adapter->io = pnp_port_start(pdev, 0);
943 adapter->irq = pnp_irq(pdev, 0);
944
945 printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at IO %#x irq %d\n",
946 (char *) dev_id->driver_data, adapter->io, adapter->irq);
947
948 retval = fcpcipnp_setup(adapter);
949 if (retval)
950 goto err_free;
951
952 return 0;
953
954 err_free:
955 delete_adapter(adapter);
956 err:
957 return retval;
958 }
959
960 static void fcpnp_remove(struct pnp_dev *pdev)
961 {
962 struct fritz_adapter *adapter = pnp_get_drvdata(pdev);
963
964 if (adapter) {
965 fcpcipnp_release(adapter);
966 delete_adapter(adapter);
967 }
968 pnp_disable_dev(pdev);
969 }
970
971 static struct pnp_driver fcpnp_driver = {
972 .name = "fcpnp",
973 .probe = fcpnp_probe,
974 .remove = fcpnp_remove,
975 .id_table = fcpnp_ids,
976 };
977 #endif
978
979 static void fcpci_remove(struct pci_dev *pdev)
980 {
981 struct fritz_adapter *adapter = pci_get_drvdata(pdev);
982
983 fcpcipnp_release(adapter);
984 pci_disable_device(pdev);
985 delete_adapter(adapter);
986 }
987
988 static struct pci_driver fcpci_driver = {
989 .name = "fcpci",
990 .probe = fcpci_probe,
991 .remove = fcpci_remove,
992 .id_table = fcpci_ids,
993 };
994
995 static int __init hisax_fcpcipnp_init(void)
996 {
997 int retval;
998
999 printk(KERN_INFO "hisax_fcpcipnp: Fritz!Card PCI/PCIv2/PnP ISDN driver v0.0.1\n");
1000
1001 retval = pci_register_driver(&fcpci_driver);
1002 if (retval)
1003 return retval;
1004 #ifdef CONFIG_PNP
1005 retval = pnp_register_driver(&fcpnp_driver);
1006 if (retval < 0) {
1007 pci_unregister_driver(&fcpci_driver);
1008 return retval;
1009 }
1010 #endif
1011 return 0;
1012 }
1013
1014 static void __exit hisax_fcpcipnp_exit(void)
1015 {
1016 #ifdef CONFIG_PNP
1017 pnp_unregister_driver(&fcpnp_driver);
1018 #endif
1019 pci_unregister_driver(&fcpci_driver);
1020 }
1021
1022 module_init(hisax_fcpcipnp_init);
1023 module_exit(hisax_fcpcipnp_exit);
Linux with added FPC-III support