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mfd: Copy the device pointer to the twl4030-madc structure
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / isdn / hisax / hisax_fcpcipnp.c
blob8b0a7d86b30ff1dc62bb769973b511fde7fb03d9
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/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
45 static int debug = 0;
46 /* static int hdlcfifosize = 32; */
47 module_param(debug, int, 0);
48 /* module_param(hdlcfifosize, int, 0); */
49 #endif
50
51 MODULE_AUTHOR("Kai Germaschewski <kai.germaschewski@gmx.de>/Karsten Keil <kkeil@suse.de>");
52 MODULE_DESCRIPTION("AVM Fritz!PCI/PnP ISDN driver");
53
54 static 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
69 MODULE_DEVICE_TABLE(pci, fcpci_ids);
70
71 #ifdef CONFIG_PNP
72 static struct pnp_device_id fcpnp_ids[] __devinitdata = {
73 {
74 .id = "AVM0900",
75 .driver_data = (unsigned long) "Fritz!Card PnP",
76 },
77 { .id = "" }
78 };
79
80 MODULE_DEVICE_TABLE(pnp, fcpnp_ids);
81 #endif
82
83 static int protocol = 2; /* EURO-ISDN Default */
84 module_param(protocol, int, 0);
85 MODULE_LICENSE("GPL");
86
87 // ----------------------------------------------------------------------
88
89 #define AVM_INDEX 0x04
90 #define AVM_DATA 0x10
91
92 #define AVM_IDX_HDLC_1 0x00
93 #define AVM_IDX_HDLC_2 0x01
94 #define AVM_IDX_ISAC_FIFO 0x02
95 #define AVM_IDX_ISAC_REG_LOW 0x04
96 #define AVM_IDX_ISAC_REG_HIGH 0x06
97
98 #define AVM_STATUS0 0x02
99
100 #define AVM_STATUS0_IRQ_ISAC 0x01
101 #define AVM_STATUS0_IRQ_HDLC 0x02
102 #define AVM_STATUS0_IRQ_TIMER 0x04
103 #define AVM_STATUS0_IRQ_MASK 0x07
104
105 #define AVM_STATUS0_RESET 0x01
106 #define AVM_STATUS0_DIS_TIMER 0x02
107 #define AVM_STATUS0_RES_TIMER 0x04
108 #define AVM_STATUS0_ENA_IRQ 0x08
109 #define AVM_STATUS0_TESTBIT 0x10
110
111 #define AVM_STATUS1 0x03
112 #define AVM_STATUS1_ENA_IOM 0x80
113
114 #define HDLC_FIFO 0x0
115 #define HDLC_STATUS 0x4
116 #define HDLC_CTRL 0x4
117
118 #define HDLC_MODE_ITF_FLG 0x01
119 #define HDLC_MODE_TRANS 0x02
120 #define HDLC_MODE_CCR_7 0x04
121 #define HDLC_MODE_CCR_16 0x08
122 #define HDLC_MODE_TESTLOOP 0x80
123
124 #define HDLC_INT_XPR 0x80
125 #define HDLC_INT_XDU 0x40
126 #define HDLC_INT_RPR 0x20
127 #define HDLC_INT_MASK 0xE0
128
129 #define HDLC_STAT_RME 0x01
130 #define HDLC_STAT_RDO 0x10
131 #define HDLC_STAT_CRCVFRRAB 0x0E
132 #define HDLC_STAT_CRCVFR 0x06
133 #define HDLC_STAT_RML_MASK 0xff00
134
135 #define HDLC_CMD_XRS 0x80
136 #define HDLC_CMD_XME 0x01
137 #define HDLC_CMD_RRS 0x20
138 #define HDLC_CMD_XML_MASK 0xff00
139
140 #define AVM_HDLC_FIFO_1 0x10
141 #define AVM_HDLC_FIFO_2 0x18
142
143 #define AVM_HDLC_STATUS_1 0x14
144 #define AVM_HDLC_STATUS_2 0x1c
145
146 #define AVM_ISACSX_INDEX 0x04
147 #define AVM_ISACSX_DATA 0x08
148
149 // ----------------------------------------------------------------------
150 // Fritz!PCI
151
152 static unsigned char fcpci_read_isac(struct isac *isac, unsigned char offset)
153 {
154 struct fritz_adapter *adapter = isac->priv;
155 unsigned char idx = (offset > 0x2f) ?
156 AVM_IDX_ISAC_REG_HIGH : AVM_IDX_ISAC_REG_LOW;
157 unsigned char val;
158 unsigned long flags;
159
160 spin_lock_irqsave(&adapter->hw_lock, flags);
161 outb(idx, adapter->io + AVM_INDEX);
162 val = inb(adapter->io + AVM_DATA + (offset & 0xf));
163 spin_unlock_irqrestore(&adapter->hw_lock, flags);
164 DBG(0x1000, " port %#x, value %#x",
165 offset, val);
166 return val;
167 }
168
169 static void fcpci_write_isac(struct isac *isac, unsigned char offset,
170 unsigned char value)
171 {
172 struct fritz_adapter *adapter = isac->priv;
173 unsigned char idx = (offset > 0x2f) ?
174 AVM_IDX_ISAC_REG_HIGH : AVM_IDX_ISAC_REG_LOW;
175 unsigned long flags;
176
177 DBG(0x1000, " port %#x, value %#x",
178 offset, value);
179 spin_lock_irqsave(&adapter->hw_lock, flags);
180 outb(idx, adapter->io + AVM_INDEX);
181 outb(value, adapter->io + AVM_DATA + (offset & 0xf));
182 spin_unlock_irqrestore(&adapter->hw_lock, flags);
183 }
184
185 static void fcpci_read_isac_fifo(struct isac *isac, unsigned char * data,
186 int size)
187 {
188 struct fritz_adapter *adapter = isac->priv;
189 unsigned long flags;
190
191 spin_lock_irqsave(&adapter->hw_lock, flags);
192 outb(AVM_IDX_ISAC_FIFO, adapter->io + AVM_INDEX);
193 insb(adapter->io + AVM_DATA, data, size);
194 spin_unlock_irqrestore(&adapter->hw_lock, flags);
195 }
196
197 static void fcpci_write_isac_fifo(struct isac *isac, unsigned char * data,
198 int size)
199 {
200 struct fritz_adapter *adapter = isac->priv;
201 unsigned long flags;
202
203 spin_lock_irqsave(&adapter->hw_lock, flags);
204 outb(AVM_IDX_ISAC_FIFO, adapter->io + AVM_INDEX);
205 outsb(adapter->io + AVM_DATA, data, size);
206 spin_unlock_irqrestore(&adapter->hw_lock, flags);
207 }
208
209 static u32 fcpci_read_hdlc_status(struct fritz_adapter *adapter, int nr)
210 {
211 u32 val;
212 int idx = nr ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
213 unsigned long flags;
214
215 spin_lock_irqsave(&adapter->hw_lock, flags);
216 outl(idx, adapter->io + AVM_INDEX);
217 val = inl(adapter->io + AVM_DATA + HDLC_STATUS);
218 spin_unlock_irqrestore(&adapter->hw_lock, flags);
219 return val;
220 }
221
222 static void __fcpci_write_ctrl(struct fritz_bcs *bcs, int which)
223 {
224 struct fritz_adapter *adapter = bcs->adapter;
225 int idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
226
227 DBG(0x40, "hdlc %c wr%x ctrl %x",
228 'A' + bcs->channel, which, bcs->ctrl.ctrl);
229
230 outl(idx, adapter->io + AVM_INDEX);
231 outl(bcs->ctrl.ctrl, adapter->io + AVM_DATA + HDLC_CTRL);
232 }
233
234 static void fcpci_write_ctrl(struct fritz_bcs *bcs, int which)
235 {
236 struct fritz_adapter *adapter = bcs->adapter;
237 unsigned long flags;
238
239 spin_lock_irqsave(&adapter->hw_lock, flags);
240 __fcpci_write_ctrl(bcs, which);
241 spin_unlock_irqrestore(&adapter->hw_lock, flags);
242 }
243
244 // ----------------------------------------------------------------------
245 // Fritz!PCI v2
246
247 static unsigned char fcpci2_read_isac(struct isac *isac, unsigned char offset)
248 {
249 struct fritz_adapter *adapter = isac->priv;
250 unsigned char val;
251 unsigned long flags;
252
253 spin_lock_irqsave(&adapter->hw_lock, flags);
254 outl(offset, adapter->io + AVM_ISACSX_INDEX);
255 val = inl(adapter->io + AVM_ISACSX_DATA);
256 spin_unlock_irqrestore(&adapter->hw_lock, flags);
257 DBG(0x1000, " port %#x, value %#x",
258 offset, val);
259
260 return val;
261 }
262
263 static void fcpci2_write_isac(struct isac *isac, unsigned char offset,
264 unsigned char value)
265 {
266 struct fritz_adapter *adapter = isac->priv;
267 unsigned long flags;
268
269 DBG(0x1000, " port %#x, value %#x",
270 offset, value);
271 spin_lock_irqsave(&adapter->hw_lock, flags);
272 outl(offset, adapter->io + AVM_ISACSX_INDEX);
273 outl(value, adapter->io + AVM_ISACSX_DATA);
274 spin_unlock_irqrestore(&adapter->hw_lock, flags);
275 }
276
277 static void fcpci2_read_isac_fifo(struct isac *isac, unsigned char * data,
278 int size)
279 {
280 struct fritz_adapter *adapter = isac->priv;
281 int i;
282 unsigned long flags;
283
284 spin_lock_irqsave(&adapter->hw_lock, flags);
285 outl(0, adapter->io + AVM_ISACSX_INDEX);
286 for (i = 0; i < size; i++)
287 data[i] = inl(adapter->io + AVM_ISACSX_DATA);
288 spin_unlock_irqrestore(&adapter->hw_lock, flags);
289 }
290
291 static void fcpci2_write_isac_fifo(struct isac *isac, unsigned char * data,
292 int size)
293 {
294 struct fritz_adapter *adapter = isac->priv;
295 int i;
296 unsigned long flags;
297
298 spin_lock_irqsave(&adapter->hw_lock, flags);
299 outl(0, adapter->io + AVM_ISACSX_INDEX);
300 for (i = 0; i < size; i++)
301 outl(data[i], adapter->io + AVM_ISACSX_DATA);
302 spin_unlock_irqrestore(&adapter->hw_lock, flags);
303 }
304
305 static u32 fcpci2_read_hdlc_status(struct fritz_adapter *adapter, int nr)
306 {
307 int offset = nr ? AVM_HDLC_STATUS_2 : AVM_HDLC_STATUS_1;
308
309 return inl(adapter->io + offset);
310 }
311
312 static void fcpci2_write_ctrl(struct fritz_bcs *bcs, int which)
313 {
314 struct fritz_adapter *adapter = bcs->adapter;
315 int offset = bcs->channel ? AVM_HDLC_STATUS_2 : AVM_HDLC_STATUS_1;
316
317 DBG(0x40, "hdlc %c wr%x ctrl %x",
318 'A' + bcs->channel, which, bcs->ctrl.ctrl);
319
320 outl(bcs->ctrl.ctrl, adapter->io + offset);
321 }
322
323 // ----------------------------------------------------------------------
324 // Fritz!PnP (ISAC access as for Fritz!PCI)
325
326 static u32 fcpnp_read_hdlc_status(struct fritz_adapter *adapter, int nr)
327 {
328 unsigned char idx = nr ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
329 u32 val;
330 unsigned long flags;
331
332 spin_lock_irqsave(&adapter->hw_lock, flags);
333 outb(idx, adapter->io + AVM_INDEX);
334 val = inb(adapter->io + AVM_DATA + HDLC_STATUS);
335 if (val & HDLC_INT_RPR)
336 val |= inb(adapter->io + AVM_DATA + HDLC_STATUS + 1) << 8;
337 spin_unlock_irqrestore(&adapter->hw_lock, flags);
338 return val;
339 }
340
341 static void __fcpnp_write_ctrl(struct fritz_bcs *bcs, int which)
342 {
343 struct fritz_adapter *adapter = bcs->adapter;
344 unsigned char idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
345
346 DBG(0x40, "hdlc %c wr%x ctrl %x",
347 'A' + bcs->channel, which, bcs->ctrl.ctrl);
348
349 outb(idx, adapter->io + AVM_INDEX);
350 if (which & 4)
351 outb(bcs->ctrl.sr.mode,
352 adapter->io + AVM_DATA + HDLC_STATUS + 2);
353 if (which & 2)
354 outb(bcs->ctrl.sr.xml,
355 adapter->io + AVM_DATA + HDLC_STATUS + 1);
356 if (which & 1)
357 outb(bcs->ctrl.sr.cmd,
358 adapter->io + AVM_DATA + HDLC_STATUS + 0);
359 }
360
361 static void fcpnp_write_ctrl(struct fritz_bcs *bcs, int which)
362 {
363 struct fritz_adapter *adapter = bcs->adapter;
364 unsigned long flags;
365
366 spin_lock_irqsave(&adapter->hw_lock, flags);
367 __fcpnp_write_ctrl(bcs, which);
368 spin_unlock_irqrestore(&adapter->hw_lock, flags);
369 }
370
371 // ----------------------------------------------------------------------
372
373 static inline void B_L1L2(struct fritz_bcs *bcs, int pr, void *arg)
374 {
375 struct hisax_if *ifc = (struct hisax_if *) &bcs->b_if;
376
377 DBG(2, "pr %#x", pr);
378 ifc->l1l2(ifc, pr, arg);
379 }
380
381 static void hdlc_fill_fifo(struct fritz_bcs *bcs)
382 {
383 struct fritz_adapter *adapter = bcs->adapter;
384 struct sk_buff *skb = bcs->tx_skb;
385 int count;
386 unsigned long flags;
387 unsigned char *p;
388
389 DBG(0x40, "hdlc_fill_fifo");
390
391 BUG_ON(skb->len == 0);
392
393 bcs->ctrl.sr.cmd &= ~HDLC_CMD_XME;
394 if (bcs->tx_skb->len > bcs->fifo_size) {
395 count = bcs->fifo_size;
396 } else {
397 count = bcs->tx_skb->len;
398 if (bcs->mode != L1_MODE_TRANS)
399 bcs->ctrl.sr.cmd |= HDLC_CMD_XME;
400 }
401 DBG(0x40, "hdlc_fill_fifo %d/%d", count, bcs->tx_skb->len);
402 p = bcs->tx_skb->data;
403 skb_pull(bcs->tx_skb, count);
404 bcs->tx_cnt += count;
405 bcs->ctrl.sr.xml = ((count == bcs->fifo_size) ? 0 : count);
406
407 switch (adapter->type) {
408 case AVM_FRITZ_PCI:
409 spin_lock_irqsave(&adapter->hw_lock, flags);
410 // sets the correct AVM_INDEX, too
411 __fcpci_write_ctrl(bcs, 3);
412 outsl(adapter->io + AVM_DATA + HDLC_FIFO,
413 p, (count + 3) / 4);
414 spin_unlock_irqrestore(&adapter->hw_lock, flags);
415 break;
416 case AVM_FRITZ_PCIV2:
417 fcpci2_write_ctrl(bcs, 3);
418 outsl(adapter->io +
419 (bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
420 p, (count + 3) / 4);
421 break;
422 case AVM_FRITZ_PNP:
423 spin_lock_irqsave(&adapter->hw_lock, flags);
424 // sets the correct AVM_INDEX, too
425 __fcpnp_write_ctrl(bcs, 3);
426 outsb(adapter->io + AVM_DATA, p, count);
427 spin_unlock_irqrestore(&adapter->hw_lock, flags);
428 break;
429 }
430 }
431
432 static inline void hdlc_empty_fifo(struct fritz_bcs *bcs, int count)
433 {
434 struct fritz_adapter *adapter = bcs->adapter;
435 unsigned char *p;
436 unsigned char idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
437
438 DBG(0x10, "hdlc_empty_fifo %d", count);
439 if (bcs->rcvidx + count > HSCX_BUFMAX) {
440 DBG(0x10, "hdlc_empty_fifo: incoming packet too large");
441 return;
442 }
443 p = bcs->rcvbuf + bcs->rcvidx;
444 bcs->rcvidx += count;
445 switch (adapter->type) {
446 case AVM_FRITZ_PCI:
447 spin_lock(&adapter->hw_lock);
448 outl(idx, adapter->io + AVM_INDEX);
449 insl(adapter->io + AVM_DATA + HDLC_FIFO,
450 p, (count + 3) / 4);
451 spin_unlock(&adapter->hw_lock);
452 break;
453 case AVM_FRITZ_PCIV2:
454 insl(adapter->io +
455 (bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
456 p, (count + 3) / 4);
457 break;
458 case AVM_FRITZ_PNP:
459 spin_lock(&adapter->hw_lock);
460 outb(idx, adapter->io + AVM_INDEX);
461 insb(adapter->io + AVM_DATA, p, count);
462 spin_unlock(&adapter->hw_lock);
463 break;
464 }
465 }
466
467 static inline void hdlc_rpr_irq(struct fritz_bcs *bcs, u32 stat)
468 {
469 struct fritz_adapter *adapter = bcs->adapter;
470 struct sk_buff *skb;
471 int len;
472
473 if (stat & HDLC_STAT_RDO) {
474 DBG(0x10, "RDO");
475 bcs->ctrl.sr.xml = 0;
476 bcs->ctrl.sr.cmd |= HDLC_CMD_RRS;
477 adapter->write_ctrl(bcs, 1);
478 bcs->ctrl.sr.cmd &= ~HDLC_CMD_RRS;
479 adapter->write_ctrl(bcs, 1);
480 bcs->rcvidx = 0;
481 return;
482 }
483
484 len = (stat & HDLC_STAT_RML_MASK) >> 8;
485 if (len == 0)
486 len = bcs->fifo_size;
487
488 hdlc_empty_fifo(bcs, len);
489
490 if ((stat & HDLC_STAT_RME) || (bcs->mode == L1_MODE_TRANS)) {
491 if (((stat & HDLC_STAT_CRCVFRRAB)== HDLC_STAT_CRCVFR) ||
492 (bcs->mode == L1_MODE_TRANS)) {
493 skb = dev_alloc_skb(bcs->rcvidx);
494 if (!skb) {
495 printk(KERN_WARNING "HDLC: receive out of memory\n");
496 } else {
497 memcpy(skb_put(skb, bcs->rcvidx), bcs->rcvbuf,
498 bcs->rcvidx);
499 DBG_SKB(1, skb);
500 B_L1L2(bcs, PH_DATA | INDICATION, skb);
501 }
502 bcs->rcvidx = 0;
503 } else {
504 DBG(0x10, "ch%d invalid frame %#x",
505 bcs->channel, stat);
506 bcs->rcvidx = 0;
507 }
508 }
509 }
510
511 static inline void hdlc_xdu_irq(struct fritz_bcs *bcs)
512 {
513 struct fritz_adapter *adapter = bcs->adapter;
514
515
516 /* Here we lost an TX interrupt, so
517 * restart transmitting the whole frame.
518 */
519 bcs->ctrl.sr.xml = 0;
520 bcs->ctrl.sr.cmd |= HDLC_CMD_XRS;
521 adapter->write_ctrl(bcs, 1);
522 bcs->ctrl.sr.cmd &= ~HDLC_CMD_XRS;
523
524 if (!bcs->tx_skb) {
525 DBG(0x10, "XDU without skb");
526 adapter->write_ctrl(bcs, 1);
527 return;
528 }
529 /* only hdlc restarts the frame, transparent mode must continue */
530 if (bcs->mode == L1_MODE_HDLC) {
531 skb_push(bcs->tx_skb, bcs->tx_cnt);
532 bcs->tx_cnt = 0;
533 }
534 }
535
536 static inline void hdlc_xpr_irq(struct fritz_bcs *bcs)
537 {
538 struct sk_buff *skb;
539
540 skb = bcs->tx_skb;
541 if (!skb)
542 return;
543
544 if (skb->len) {
545 hdlc_fill_fifo(bcs);
546 return;
547 }
548 bcs->tx_cnt = 0;
549 bcs->tx_skb = NULL;
550 B_L1L2(bcs, PH_DATA | CONFIRM, (void *)(unsigned long)skb->truesize);
551 dev_kfree_skb_irq(skb);
552 }
553
554 static void hdlc_irq_one(struct fritz_bcs *bcs, u32 stat)
555 {
556 DBG(0x10, "ch%d stat %#x", bcs->channel, stat);
557 if (stat & HDLC_INT_RPR) {
558 DBG(0x10, "RPR");
559 hdlc_rpr_irq(bcs, stat);
560 }
561 if (stat & HDLC_INT_XDU) {
562 DBG(0x10, "XDU");
563 hdlc_xdu_irq(bcs);
564 hdlc_xpr_irq(bcs);
565 return;
566 }
567 if (stat & HDLC_INT_XPR) {
568 DBG(0x10, "XPR");
569 hdlc_xpr_irq(bcs);
570 }
571 }
572
573 static inline void hdlc_irq(struct fritz_adapter *adapter)
574 {
575 int nr;
576 u32 stat;
577
578 for (nr = 0; nr < 2; nr++) {
579 stat = adapter->read_hdlc_status(adapter, nr);
580 DBG(0x10, "HDLC %c stat %#x", 'A' + nr, stat);
581 if (stat & HDLC_INT_MASK)
582 hdlc_irq_one(&adapter->bcs[nr], stat);
583 }
584 }
585
586 static void modehdlc(struct fritz_bcs *bcs, int mode)
587 {
588 struct fritz_adapter *adapter = bcs->adapter;
589
590 DBG(0x40, "hdlc %c mode %d --> %d",
591 'A' + bcs->channel, bcs->mode, mode);
592
593 if (bcs->mode == mode)
594 return;
595
596 bcs->fifo_size = 32;
597 bcs->ctrl.ctrl = 0;
598 bcs->ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
599 switch (mode) {
600 case L1_MODE_NULL:
601 bcs->ctrl.sr.mode = HDLC_MODE_TRANS;
602 adapter->write_ctrl(bcs, 5);
603 break;
604 case L1_MODE_TRANS:
605 case L1_MODE_HDLC:
606 bcs->rcvidx = 0;
607 bcs->tx_cnt = 0;
608 bcs->tx_skb = NULL;
609 if (mode == L1_MODE_TRANS) {
610 bcs->ctrl.sr.mode = HDLC_MODE_TRANS;
611 } else {
612 bcs->ctrl.sr.mode = HDLC_MODE_ITF_FLG;
613 }
614 adapter->write_ctrl(bcs, 5);
615 bcs->ctrl.sr.cmd = HDLC_CMD_XRS;
616 adapter->write_ctrl(bcs, 1);
617 bcs->ctrl.sr.cmd = 0;
618 break;
619 }
620 bcs->mode = mode;
621 }
622
623 static void fritz_b_l2l1(struct hisax_if *ifc, int pr, void *arg)
624 {
625 struct fritz_bcs *bcs = ifc->priv;
626 struct sk_buff *skb = arg;
627 int mode;
628
629 DBG(0x10, "pr %#x", pr);
630
631 switch (pr) {
632 case PH_DATA | REQUEST:
633 BUG_ON(bcs->tx_skb);
634 bcs->tx_skb = skb;
635 DBG_SKB(1, skb);
636 hdlc_fill_fifo(bcs);
637 break;
638 case PH_ACTIVATE | REQUEST:
639 mode = (long) arg;
640 DBG(4,"B%d,PH_ACTIVATE_REQUEST %d", bcs->channel + 1, mode);
641 modehdlc(bcs, mode);
642 B_L1L2(bcs, PH_ACTIVATE | INDICATION, NULL);
643 break;
644 case PH_DEACTIVATE | REQUEST:
645 DBG(4,"B%d,PH_DEACTIVATE_REQUEST", bcs->channel + 1);
646 modehdlc(bcs, L1_MODE_NULL);
647 B_L1L2(bcs, PH_DEACTIVATE | INDICATION, NULL);
648 break;
649 }
650 }
651
652 // ----------------------------------------------------------------------
653
654 static irqreturn_t
655 fcpci2_irq(int intno, void *dev)
656 {
657 struct fritz_adapter *adapter = dev;
658 unsigned char val;
659
660 val = inb(adapter->io + AVM_STATUS0);
661 if (!(val & AVM_STATUS0_IRQ_MASK))
662 /* hopefully a shared IRQ reqest */
663 return IRQ_NONE;
664 DBG(2, "STATUS0 %#x", val);
665 if (val & AVM_STATUS0_IRQ_ISAC)
666 isacsx_irq(&adapter->isac);
667 if (val & AVM_STATUS0_IRQ_HDLC)
668 hdlc_irq(adapter);
669 if (val & AVM_STATUS0_IRQ_ISAC)
670 isacsx_irq(&adapter->isac);
671 return IRQ_HANDLED;
672 }
673
674 static irqreturn_t
675 fcpci_irq(int intno, void *dev)
676 {
677 struct fritz_adapter *adapter = dev;
678 unsigned char sval;
679
680 sval = inb(adapter->io + 2);
681 if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK)
682 /* possibly a shared IRQ reqest */
683 return IRQ_NONE;
684 DBG(2, "sval %#x", sval);
685 if (!(sval & AVM_STATUS0_IRQ_ISAC))
686 isac_irq(&adapter->isac);
687
688 if (!(sval & AVM_STATUS0_IRQ_HDLC))
689 hdlc_irq(adapter);
690 return IRQ_HANDLED;
691 }
692
693 // ----------------------------------------------------------------------
694
695 static inline void fcpci2_init(struct fritz_adapter *adapter)
696 {
697 outb(AVM_STATUS0_RES_TIMER, adapter->io + AVM_STATUS0);
698 outb(AVM_STATUS0_ENA_IRQ, adapter->io + AVM_STATUS0);
699
700 }
701
702 static inline void fcpci_init(struct fritz_adapter *adapter)
703 {
704 outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER |
705 AVM_STATUS0_ENA_IRQ, adapter->io + AVM_STATUS0);
706
707 outb(AVM_STATUS1_ENA_IOM | adapter->irq,
708 adapter->io + AVM_STATUS1);
709 mdelay(10);
710 }
711
712 // ----------------------------------------------------------------------
713
714 static int __devinit fcpcipnp_setup(struct fritz_adapter *adapter)
715 {
716 u32 val = 0;
717 int retval;
718
719 DBG(1,"");
720
721 isac_init(&adapter->isac); // FIXME is this okay now
722
723 retval = -EBUSY;
724 if (!request_region(adapter->io, 32, "fcpcipnp"))
725 goto err;
726
727 switch (adapter->type) {
728 case AVM_FRITZ_PCIV2:
729 case AVM_FRITZ_PCI:
730 val = inl(adapter->io);
731 break;
732 case AVM_FRITZ_PNP:
733 val = inb(adapter->io);
734 val |= inb(adapter->io + 1) << 8;
735 break;
736 }
737
738 DBG(1, "stat %#x Class %X Rev %d",
739 val, val & 0xff, (val>>8) & 0xff);
740
741 spin_lock_init(&adapter->hw_lock);
742 adapter->isac.priv = adapter;
743 switch (adapter->type) {
744 case AVM_FRITZ_PCIV2:
745 adapter->isac.read_isac = &fcpci2_read_isac;
746 adapter->isac.write_isac = &fcpci2_write_isac;
747 adapter->isac.read_isac_fifo = &fcpci2_read_isac_fifo;
748 adapter->isac.write_isac_fifo = &fcpci2_write_isac_fifo;
749
750 adapter->read_hdlc_status = &fcpci2_read_hdlc_status;
751 adapter->write_ctrl = &fcpci2_write_ctrl;
752 break;
753 case AVM_FRITZ_PCI:
754 adapter->isac.read_isac = &fcpci_read_isac;
755 adapter->isac.write_isac = &fcpci_write_isac;
756 adapter->isac.read_isac_fifo = &fcpci_read_isac_fifo;
757 adapter->isac.write_isac_fifo = &fcpci_write_isac_fifo;
758
759 adapter->read_hdlc_status = &fcpci_read_hdlc_status;
760 adapter->write_ctrl = &fcpci_write_ctrl;
761 break;
762 case AVM_FRITZ_PNP:
763 adapter->isac.read_isac = &fcpci_read_isac;
764 adapter->isac.write_isac = &fcpci_write_isac;
765 adapter->isac.read_isac_fifo = &fcpci_read_isac_fifo;
766 adapter->isac.write_isac_fifo = &fcpci_write_isac_fifo;
767
768 adapter->read_hdlc_status = &fcpnp_read_hdlc_status;
769 adapter->write_ctrl = &fcpnp_write_ctrl;
770 break;
771 }
772
773 // Reset
774 outb(0, adapter->io + AVM_STATUS0);
775 mdelay(10);
776 outb(AVM_STATUS0_RESET, adapter->io + AVM_STATUS0);
777 mdelay(10);
778 outb(0, adapter->io + AVM_STATUS0);
779 mdelay(10);
780
781 switch (adapter->type) {
782 case AVM_FRITZ_PCIV2:
783 retval = request_irq(adapter->irq, fcpci2_irq, IRQF_SHARED,
784 "fcpcipnp", adapter);
785 break;
786 case AVM_FRITZ_PCI:
787 retval = request_irq(adapter->irq, fcpci_irq, IRQF_SHARED,
788 "fcpcipnp", adapter);
789 break;
790 case AVM_FRITZ_PNP:
791 retval = request_irq(adapter->irq, fcpci_irq, 0,
792 "fcpcipnp", adapter);
793 break;
794 }
795 if (retval)
796 goto err_region;
797
798 switch (adapter->type) {
799 case AVM_FRITZ_PCIV2:
800 fcpci2_init(adapter);
801 isacsx_setup(&adapter->isac);
802 break;
803 case AVM_FRITZ_PCI:
804 case AVM_FRITZ_PNP:
805 fcpci_init(adapter);
806 isac_setup(&adapter->isac);
807 break;
808 }
809 val = adapter->read_hdlc_status(adapter, 0);
810 DBG(0x20, "HDLC A STA %x", val);
811 val = adapter->read_hdlc_status(adapter, 1);
812 DBG(0x20, "HDLC B STA %x", val);
813
814 adapter->bcs[0].mode = -1;
815 adapter->bcs[1].mode = -1;
816 modehdlc(&adapter->bcs[0], L1_MODE_NULL);
817 modehdlc(&adapter->bcs[1], L1_MODE_NULL);
818
819 return 0;
820
821 err_region:
822 release_region(adapter->io, 32);
823 err:
824 return retval;
825 }
826
827 static void __devexit fcpcipnp_release(struct fritz_adapter *adapter)
828 {
829 DBG(1,"");
830
831 outb(0, adapter->io + AVM_STATUS0);
832 free_irq(adapter->irq, adapter);
833 release_region(adapter->io, 32);
834 }
835
836 // ----------------------------------------------------------------------
837
838 static struct fritz_adapter * __devinit
839 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 __devinit fcpci_probe(struct pci_dev *pdev,
879 const struct pci_device_id *ent)
880 {
881 struct fritz_adapter *adapter;
882 int retval;
883
884 retval = -ENOMEM;
885 adapter = new_adapter();
886 if (!adapter)
887 goto err;
888
889 pci_set_drvdata(pdev, adapter);
890
891 if (pdev->device == PCI_DEVICE_ID_AVM_A1_V2)
892 adapter->type = AVM_FRITZ_PCIV2;
893 else
894 adapter->type = AVM_FRITZ_PCI;
895
896 retval = pci_enable_device(pdev);
897 if (retval)
898 goto err_free;
899
900 adapter->io = pci_resource_start(pdev, 1);
901 adapter->irq = pdev->irq;
902
903 printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at %s\n",
904 (char *) ent->driver_data, pci_name(pdev));
905
906 retval = fcpcipnp_setup(adapter);
907 if (retval)
908 goto err_free;
909
910 return 0;
911
912 err_free:
913 delete_adapter(adapter);
914 err:
915 return retval;
916 }
917
918 #ifdef CONFIG_PNP
919 static int __devinit fcpnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
920 {
921 struct fritz_adapter *adapter;
922 int retval;
923
924 if (!pdev)
925 return(-ENODEV);
926
927 retval = -ENOMEM;
928 adapter = new_adapter();
929 if (!adapter)
930 goto err;
931
932 pnp_set_drvdata(pdev, adapter);
933
934 adapter->type = AVM_FRITZ_PNP;
935
936 pnp_disable_dev(pdev);
937 retval = pnp_activate_dev(pdev);
938 if (retval < 0) {
939 printk(KERN_WARNING "%s: pnp_activate_dev(%s) ret(%d)\n", __func__,
940 (char *)dev_id->driver_data, retval);
941 goto err_free;
942 }
943 adapter->io = pnp_port_start(pdev, 0);
944 adapter->irq = pnp_irq(pdev, 0);
945
946 printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at IO %#x irq %d\n",
947 (char *) dev_id->driver_data, adapter->io, adapter->irq);
948
949 retval = fcpcipnp_setup(adapter);
950 if (retval)
951 goto err_free;
952
953 return 0;
954
955 err_free:
956 delete_adapter(adapter);
957 err:
958 return retval;
959 }
960
961 static void __devexit fcpnp_remove(struct pnp_dev *pdev)
962 {
963 struct fritz_adapter *adapter = pnp_get_drvdata(pdev);
964
965 if (adapter) {
966 fcpcipnp_release(adapter);
967 delete_adapter(adapter);
968 }
969 pnp_disable_dev(pdev);
970 }
971
972 static struct pnp_driver fcpnp_driver = {
973 .name = "fcpnp",
974 .probe = fcpnp_probe,
975 .remove = __devexit_p(fcpnp_remove),
976 .id_table = fcpnp_ids,
977 };
978 #endif
979
980 static void __devexit fcpci_remove(struct pci_dev *pdev)
981 {
982 struct fritz_adapter *adapter = pci_get_drvdata(pdev);
983
984 fcpcipnp_release(adapter);
985 pci_disable_device(pdev);
986 delete_adapter(adapter);
987 }
988
989 static struct pci_driver fcpci_driver = {
990 .name = "fcpci",
991 .probe = fcpci_probe,
992 .remove = __devexit_p(fcpci_remove),
993 .id_table = fcpci_ids,
994 };
995
996 static int __init hisax_fcpcipnp_init(void)
997 {
998 int retval;
999
1000 printk(KERN_INFO "hisax_fcpcipnp: Fritz!Card PCI/PCIv2/PnP ISDN driver v0.0.1\n");
1001
1002 retval = pci_register_driver(&fcpci_driver);
1003 if (retval)
1004 return retval;
1005 #ifdef CONFIG_PNP
1006 retval = pnp_register_driver(&fcpnp_driver);
1007 if (retval < 0) {
1008 pci_unregister_driver(&fcpci_driver);
1009 return retval;
1010 }
1011 #endif
1012 return 0;
1013 }
1014
1015 static void __exit hisax_fcpcipnp_exit(void)
1016 {
1017 #ifdef CONFIG_PNP
1018 pnp_unregister_driver(&fcpnp_driver);
1019 #endif
1020 pci_unregister_driver(&fcpci_driver);
1021 }
1022
1023 module_init(hisax_fcpcipnp_init);
1024 module_exit(hisax_fcpcipnp_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree