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Import 2.3.50pre1
[davej-history.git] / drivers / isdn / avmb1 / c4.c
blob76f34569dafd565dafa779582683cf98cb7cfd23
1 /*
2 * $Id: c4.c,v 1.4 2000/02/02 18:36:03 calle Exp $
3 *
4 * Module for AVM C4 card.
5 *
6 * (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de)
7 *
8 * $Log: c4.c,v $
9 * Revision 1.4 2000/02/02 18:36:03 calle
10 * - Modules are now locked while init_module is running
11 * - fixed problem with memory mapping if address is not aligned
12 *
13 * Revision 1.3 2000/01/25 14:37:39 calle
14 * new message after successfull detection including card revision and
15 * used resources.
16 *
17 * Revision 1.2 2000/01/21 20:52:58 keil
18 * pci_find_subsys as local function for 2.2.X kernel
19 *
20 * Revision 1.1 2000/01/20 10:51:37 calle
21 * Added driver for C4.
22 *
23 *
24 */
25
26 #include <linux/config.h>
27 #include <linux/module.h>
28 #include <linux/kernel.h>
29 #include <linux/skbuff.h>
30 #include <linux/delay.h>
31 #include <linux/mm.h>
32 #include <linux/interrupt.h>
33 #include <linux/ioport.h>
34 #include <linux/pci.h>
35 #include <linux/capi.h>
36 #include <asm/io.h>
37 #include <asm/uaccess.h>
38 #include "capicmd.h"
39 #include "capiutil.h"
40 #include "capilli.h"
41 #include "avmcard.h"
42
43 static char *revision = "$Revision: 1.4 $";
44
45 #undef CONFIG_C4_DEBUG
46 #undef CONFIG_C4_POLLDEBUG
47
48 /* ------------------------------------------------------------- */
49
50 #ifndef PCI_VENDOR_ID_DEC
51 #define PCI_VENDOR_ID_DEC 0x1011
52 #endif
53
54 #ifndef PCI_DEVICE_ID_DEC_21285
55 #define PCI_DEVICE_ID_DEC_21285 0x1065
56 #endif
57
58 #ifndef PCI_VENDOR_ID_AVM
59 #define PCI_VENDOR_ID_AVM 0x1244
60 #endif
61
62 #ifndef PCI_DEVICE_ID_AVM_C4
63 #define PCI_DEVICE_ID_AVM_C4 0x0800
64 #endif
65
66 /* ------------------------------------------------------------- */
67
68 static int suppress_pollack = 0;
69
70 MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
71
72 MODULE_PARM(suppress_pollack, "0-1i");
73
74 /* ------------------------------------------------------------- */
75
76 static struct capi_driver_interface *di;
77
78 /* ------------------------------------------------------------- */
79
80 static void c4_dispatch_tx(avmcard *card);
81
82 /* ------------------------------------------------------------- */
83
84 #define DC21285_DRAM_A0MR 0x40000000
85 #define DC21285_DRAM_A1MR 0x40004000
86 #define DC21285_DRAM_A2MR 0x40008000
87 #define DC21285_DRAM_A3MR 0x4000C000
88
89 #define CAS_OFFSET 0x88
90
91 #define DC21285_ARMCSR_BASE 0x42000000
92
93 #define PCI_OUT_INT_STATUS 0x30
94 #define PCI_OUT_INT_MASK 0x34
95 #define MAILBOX_0 0x50
96 #define MAILBOX_1 0x54
97 #define MAILBOX_2 0x58
98 #define MAILBOX_3 0x5C
99 #define DOORBELL 0x60
100 #define DOORBELL_SETUP 0x64
101
102 #define CHAN_1_CONTROL 0x90
103 #define CHAN_2_CONTROL 0xB0
104 #define DRAM_TIMING 0x10C
105 #define DRAM_ADDR_SIZE_0 0x110
106 #define DRAM_ADDR_SIZE_1 0x114
107 #define DRAM_ADDR_SIZE_2 0x118
108 #define DRAM_ADDR_SIZE_3 0x11C
109 #define SA_CONTROL 0x13C
110 #define XBUS_CYCLE 0x148
111 #define XBUS_STROBE 0x14C
112 #define DBELL_PCI_MASK 0x150
113 #define DBELL_SA_MASK 0x154
114
115 #define SDRAM_SIZE 0x1000000
116
117 /* ------------------------------------------------------------- */
118
119 #define MBOX_PEEK_POKE MAILBOX_0
120
121 #define DBELL_ADDR 0x01
122 #define DBELL_DATA 0x02
123 #define DBELL_RNWR 0x40
124 #define DBELL_INIT 0x80
125
126 /* ------------------------------------------------------------- */
127
128 #define MBOX_UP_ADDR MAILBOX_0
129 #define MBOX_UP_LEN MAILBOX_1
130 #define MBOX_DOWN_ADDR MAILBOX_2
131 #define MBOX_DOWN_LEN MAILBOX_3
132
133 #define DBELL_UP_HOST 0x00000100
134 #define DBELL_UP_ARM 0x00000200
135 #define DBELL_DOWN_HOST 0x00000400
136 #define DBELL_DOWN_ARM 0x00000800
137 #define DBELL_RESET_HOST 0x40000000
138 #define DBELL_RESET_ARM 0x80000000
139
140 /* ------------------------------------------------------------- */
141
142 #define DRAM_TIMING_DEF 0x001A01A5
143 #define DRAM_AD_SZ_DEF0 0x00000045
144 #define DRAM_AD_SZ_NULL 0x00000000
145
146 #define SA_CTL_ALLRIGHT 0x64AA0271
147
148 #define INIT_XBUS_CYCLE 0x100016DB
149 #define INIT_XBUS_STROBE 0xF1F1F1F1
150
151 /* ------------------------------------------------------------- */
152
153 #define RESET_TIMEOUT (15*HZ) /* 15 sec */
154 #define PEEK_POKE_TIMEOUT (HZ/10) /* 0.1 sec */
155
156 /* ------------------------------------------------------------- */
157
158 #define c4outmeml(addr, value) writel(value, addr)
159 #define c4inmeml(addr) readl(addr)
160 #define c4outmemw(addr, value) writew(value, addr)
161 #define c4inmemw(addr) readw(addr)
162 #define c4outmemb(addr, value) writeb(value, addr)
163 #define c4inmemb(addr) readb(addr)
164
165 /* ------------------------------------------------------------- */
166
167 static inline int wait_for_doorbell(avmcard *card, unsigned long t)
168 {
169 unsigned long stop;
170
171 stop = jiffies + t;
172 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
173 if (!time_before(jiffies, stop))
174 return -1;
175 }
176 return 0;
177 }
178
179 static int c4_poke(avmcard *card, unsigned long off, unsigned long value)
180 {
181
182 if (wait_for_doorbell(card, HZ/10) < 0)
183 return -1;
184
185 c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
186 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
187
188 if (wait_for_doorbell(card, HZ/10) < 0)
189 return -1;
190
191 c4outmeml(card->mbase+MBOX_PEEK_POKE, value);
192 c4outmeml(card->mbase+DOORBELL, DBELL_DATA | DBELL_ADDR);
193
194 return 0;
195 }
196
197 static int c4_peek(avmcard *card, unsigned long off, unsigned long *valuep)
198 {
199 if (wait_for_doorbell(card, HZ/10) < 0)
200 return -1;
201
202 c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
203 c4outmeml(card->mbase+DOORBELL, DBELL_RNWR | DBELL_ADDR);
204
205 if (wait_for_doorbell(card, HZ/10) < 0)
206 return -1;
207
208 *valuep = c4inmeml(card->mbase+MBOX_PEEK_POKE);
209
210 return 0;
211 }
212
213 /* ------------------------------------------------------------- */
214
215 static int c4_load_t4file(avmcard *card, capiloaddatapart * t4file)
216 {
217 __u32 val;
218 unsigned char *dp;
219 int left, retval;
220 __u32 loadoff = 0;
221
222 dp = t4file->data;
223 left = t4file->len;
224 while (left >= sizeof(__u32)) {
225 if (t4file->user) {
226 retval = copy_from_user(&val, dp, sizeof(val));
227 if (retval)
228 return -EFAULT;
229 } else {
230 memcpy(&val, dp, sizeof(val));
231 }
232 if (c4_poke(card, loadoff, val)) {
233 printk(KERN_ERR "%s: corrupted firmware file ?\n",
234 card->name);
235 return -EIO;
236 }
237 left -= sizeof(__u32);
238 dp += sizeof(__u32);
239 loadoff += sizeof(__u32);
240 }
241 if (left) {
242 val = 0;
243 if (t4file->user) {
244 retval = copy_from_user(&val, dp, left);
245 if (retval)
246 return -EFAULT;
247 } else {
248 memcpy(&val, dp, left);
249 }
250 if (c4_poke(card, loadoff, val)) {
251 printk(KERN_ERR "%s: corrupted firmware file ?\n",
252 card->name);
253 return -EIO;
254 }
255 }
256 return 0;
257 }
258
259 /* ------------------------------------------------------------- */
260
261 static inline void _put_byte(void **pp, __u8 val)
262 {
263 __u8 *s = *pp;
264 *s++ = val;
265 *pp = s;
266 }
267
268 static inline void _put_word(void **pp, __u32 val)
269 {
270 __u8 *s = *pp;
271 *s++ = val & 0xff;
272 *s++ = (val >> 8) & 0xff;
273 *s++ = (val >> 16) & 0xff;
274 *s++ = (val >> 24) & 0xff;
275 *pp = s;
276 }
277
278 static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len)
279 {
280 unsigned i = len;
281 _put_word(pp, i);
282 while (i-- > 0)
283 _put_byte(pp, *dp++);
284 }
285
286 static inline __u8 _get_byte(void **pp)
287 {
288 __u8 *s = *pp;
289 __u8 val;
290 val = *s++;
291 *pp = s;
292 return val;
293 }
294
295 static inline __u32 _get_word(void **pp)
296 {
297 __u8 *s = *pp;
298 __u32 val;
299 val = *s++;
300 val |= (*s++ << 8);
301 val |= (*s++ << 16);
302 val |= (*s++ << 24);
303 *pp = s;
304 return val;
305 }
306
307 static inline __u32 _get_slice(void **pp, unsigned char *dp)
308 {
309 unsigned int len, i;
310
311 len = i = _get_word(pp);
312 while (i-- > 0) *dp++ = _get_byte(pp);
313 return len;
314 }
315
316 /* ------------------------------------------------------------- */
317
318 static void c4_reset(avmcard *card)
319 {
320 unsigned long stop;
321
322 c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
323
324 stop = jiffies + HZ*10;
325 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
326 if (!time_before(jiffies, stop))
327 return;
328 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
329 }
330
331 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
332 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
333 }
334
335 /* ------------------------------------------------------------- */
336
337 static int c4_detect(avmcard *card)
338 {
339 unsigned long stop, dummy;
340
341 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
342 if (c4inmeml(card->mbase+PCI_OUT_INT_MASK) != 0x0c)
343 return 1;
344
345 c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
346
347 stop = jiffies + HZ*10;
348 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
349 if (!time_before(jiffies, stop))
350 return 2;
351 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
352 }
353
354 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
355 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
356
357 c4outmeml(card->mbase+MAILBOX_0, 0x55aa55aa);
358 if (c4inmeml(card->mbase+MAILBOX_0) != 0x55aa55aa) return 3;
359
360 c4outmeml(card->mbase+MAILBOX_0, 0xaa55aa55);
361 if (c4inmeml(card->mbase+MAILBOX_0) != 0xaa55aa55) return 4;
362
363 if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_SA_MASK, 0)) return 5;
364 if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_PCI_MASK, 0)) return 6;
365 if (c4_poke(card, DC21285_ARMCSR_BASE+SA_CONTROL, SA_CTL_ALLRIGHT))
366 return 7;
367 if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_CYCLE, INIT_XBUS_CYCLE))
368 return 8;
369 if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_STROBE, INIT_XBUS_STROBE))
370 return 8;
371 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, 0)) return 9;
372
373 udelay(1000);
374
375 if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10;
376 if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11;
377 if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12;
378 if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13;
379
380 if (c4_poke(card, DC21285_DRAM_A0MR+CAS_OFFSET, 0)) return 14;
381 if (c4_poke(card, DC21285_DRAM_A1MR+CAS_OFFSET, 0)) return 15;
382 if (c4_poke(card, DC21285_DRAM_A2MR+CAS_OFFSET, 0)) return 16;
383 if (c4_poke(card, DC21285_DRAM_A3MR+CAS_OFFSET, 0)) return 17;
384
385 udelay(1000);
386
387 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, DRAM_TIMING_DEF))
388 return 18;
389
390 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_0,DRAM_AD_SZ_DEF0))
391 return 19;
392 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_1,DRAM_AD_SZ_NULL))
393 return 20;
394 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_2,DRAM_AD_SZ_NULL))
395 return 21;
396 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_3,DRAM_AD_SZ_NULL))
397 return 22;
398
399 /* Transputer test */
400
401 if ( c4_poke(card, 0x000000, 0x11111111)
402 || c4_poke(card, 0x400000, 0x22222222)
403 || c4_poke(card, 0x800000, 0x33333333)
404 || c4_poke(card, 0xC00000, 0x44444444))
405 return 23;
406
407 if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111
408 || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222
409 || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333
410 || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444)
411 return 24;
412
413 if ( c4_poke(card, 0x000000, 0x55555555)
414 || c4_poke(card, 0x400000, 0x66666666)
415 || c4_poke(card, 0x800000, 0x77777777)
416 || c4_poke(card, 0xC00000, 0x88888888))
417 return 25;
418
419 if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555
420 || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666
421 || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777
422 || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888)
423 return 26;
424
425 return 0;
426 }
427
428 /* ------------------------------------------------------------- */
429
430 static void c4_dispatch_tx(avmcard *card)
431 {
432 avmcard_dmainfo *dma = card->dma;
433 unsigned long flags;
434 struct sk_buff *skb;
435 __u8 cmd, subcmd;
436 __u16 len;
437 __u32 txlen;
438 void *p;
439
440 save_flags(flags);
441 cli();
442
443 if (card->csr & DBELL_DOWN_ARM) { /* tx busy */
444 restore_flags(flags);
445 return;
446 }
447
448 skb = skb_dequeue(&dma->send_queue);
449 if (!skb) {
450 #ifdef CONFIG_C4_DEBUG
451 printk(KERN_DEBUG "%s: tx underrun\n", card->name);
452 #endif
453 restore_flags(flags);
454 return;
455 }
456
457 len = CAPIMSG_LEN(skb->data);
458
459 if (len) {
460 cmd = CAPIMSG_COMMAND(skb->data);
461 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
462
463 p = dma->sendbuf;
464
465 if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
466 __u16 dlen = CAPIMSG_DATALEN(skb->data);
467 _put_byte(&p, SEND_DATA_B3_REQ);
468 _put_slice(&p, skb->data, len);
469 _put_slice(&p, skb->data + len, dlen);
470 } else {
471 _put_byte(&p, SEND_MESSAGE);
472 _put_slice(&p, skb->data, len);
473 }
474 txlen = (__u8 *)p - (__u8 *)dma->sendbuf;
475 #ifdef CONFIG_C4_DEBUG
476 printk(KERN_DEBUG "%s: tx put msg len=%d\n", card->name, txlen);
477 #endif
478 } else {
479 txlen = skb->len-2;
480 #ifdef CONFIG_C4_POLLDEBUG
481 if (skb->data[2] == SEND_POLLACK)
482 printk(KERN_INFO "%s: ack to c4\n", card->name);
483 #endif
484 #ifdef CONFIG_C4_DEBUG
485 printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
486 card->name, skb->data[2], txlen);
487 #endif
488 memcpy(dma->sendbuf, skb->data+2, skb->len-2);
489 }
490 txlen = (txlen + 3) & ~3;
491
492 c4outmeml(card->mbase+MBOX_DOWN_ADDR, virt_to_phys(dma->sendbuf));
493 c4outmeml(card->mbase+MBOX_DOWN_LEN, txlen);
494
495 card->csr |= DBELL_DOWN_ARM;
496
497 c4outmeml(card->mbase+DOORBELL, DBELL_DOWN_ARM);
498
499 restore_flags(flags);
500 dev_kfree_skb(skb);
501 }
502
503 /* ------------------------------------------------------------- */
504
505 static void queue_pollack(avmcard *card)
506 {
507 struct sk_buff *skb;
508 void *p;
509
510 skb = alloc_skb(3, GFP_ATOMIC);
511 if (!skb) {
512 printk(KERN_CRIT "%s: no memory, lost poll ack\n",
513 card->name);
514 return;
515 }
516 p = skb->data;
517 _put_byte(&p, 0);
518 _put_byte(&p, 0);
519 _put_byte(&p, SEND_POLLACK);
520 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
521
522 skb_queue_tail(&card->dma->send_queue, skb);
523 c4_dispatch_tx(card);
524 }
525
526 /* ------------------------------------------------------------- */
527
528 static void c4_handle_rx(avmcard *card)
529 {
530 avmcard_dmainfo *dma = card->dma;
531 struct capi_ctr *ctrl;
532 avmctrl_info *cinfo;
533 struct sk_buff *skb;
534 void *p = dma->recvbuf;
535 __u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
536 __u8 b1cmd = _get_byte(&p);
537 __u32 cidx;
538
539
540 #ifdef CONFIG_C4_DEBUG
541 printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name,
542 b1cmd, (unsigned long)dma->recvlen);
543 #endif
544
545 switch (b1cmd) {
546 case RECEIVE_DATA_B3_IND:
547
548 ApplId = (unsigned) _get_word(&p);
549 MsgLen = _get_slice(&p, card->msgbuf);
550 DataB3Len = _get_slice(&p, card->databuf);
551 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
552 if (cidx > 3) cidx = 0;
553 ctrl = card->ctrlinfo[cidx].capi_ctrl;
554
555 if (MsgLen < 30) { /* not CAPI 64Bit */
556 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
557 MsgLen = 30;
558 CAPIMSG_SETLEN(card->msgbuf, 30);
559 }
560 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
561 printk(KERN_ERR "%s: incoming packet dropped\n",
562 card->name);
563 } else {
564 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
565 memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
566 ctrl->handle_capimsg(ctrl, ApplId, skb);
567 }
568 break;
569
570 case RECEIVE_MESSAGE:
571
572 ApplId = (unsigned) _get_word(&p);
573 MsgLen = _get_slice(&p, card->msgbuf);
574 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
575 if (cidx > 3) cidx = 0;
576 ctrl = card->ctrlinfo[cidx].capi_ctrl;
577
578 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
579 printk(KERN_ERR "%s: incoming packet dropped\n",
580 card->name);
581 } else {
582 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
583 ctrl->handle_capimsg(ctrl, ApplId, skb);
584 }
585 break;
586
587 case RECEIVE_NEW_NCCI:
588
589 ApplId = _get_word(&p);
590 NCCI = _get_word(&p);
591 WindowSize = _get_word(&p);
592 cidx = (NCCI&0x7f) - card->cardnr;
593 if (cidx > 3) cidx = 0;
594 ctrl = card->ctrlinfo[cidx].capi_ctrl;
595
596 ctrl->new_ncci(ctrl, ApplId, NCCI, WindowSize);
597
598 break;
599
600 case RECEIVE_FREE_NCCI:
601
602 ApplId = _get_word(&p);
603 NCCI = _get_word(&p);
604
605 if (NCCI != 0xffffffff) {
606 cidx = (NCCI&0x7f) - card->cardnr;
607 if (cidx > 3) cidx = 0;
608 ctrl = card->ctrlinfo[cidx].capi_ctrl;
609 ctrl->free_ncci(ctrl, ApplId, NCCI);
610 } else {
611 for (cidx=0; cidx < 4; cidx++) {
612 ctrl = card->ctrlinfo[cidx].capi_ctrl;
613 ctrl->appl_released(ctrl, ApplId);
614 }
615 }
616 break;
617
618 case RECEIVE_START:
619 #ifdef CONFIG_C4_POLLDEBUG
620 printk(KERN_INFO "%s: poll from c4\n", card->name);
621 #endif
622 if (!suppress_pollack)
623 queue_pollack(card);
624 for (cidx=0; cidx < 4; cidx++) {
625 ctrl = card->ctrlinfo[cidx].capi_ctrl;
626 ctrl->resume_output(ctrl);
627 }
628 break;
629
630 case RECEIVE_STOP:
631 for (cidx=0; cidx < 4; cidx++) {
632 ctrl = card->ctrlinfo[cidx].capi_ctrl;
633 ctrl->suspend_output(ctrl);
634 }
635 break;
636
637 case RECEIVE_INIT:
638
639 cidx = card->nlogcontr++;
640 cinfo = &card->ctrlinfo[cidx];
641 ctrl = cinfo->capi_ctrl;
642 cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
643 b1_parse_version(cinfo);
644 printk(KERN_INFO "%s: %s-card (%s) now active\n",
645 card->name,
646 cinfo->version[VER_CARDTYPE],
647 cinfo->version[VER_DRIVER]);
648 ctrl->ready(cinfo->capi_ctrl);
649 break;
650
651 case RECEIVE_TASK_READY:
652 ApplId = (unsigned) _get_word(&p);
653 MsgLen = _get_slice(&p, card->msgbuf);
654 card->msgbuf[MsgLen--] = 0;
655 while ( MsgLen >= 0
656 && ( card->msgbuf[MsgLen] == '\n'
657 || card->msgbuf[MsgLen] == '\r'))
658 card->msgbuf[MsgLen--] = 0;
659 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
660 card->name, ApplId, card->msgbuf);
661 break;
662
663 case RECEIVE_DEBUGMSG:
664 MsgLen = _get_slice(&p, card->msgbuf);
665 card->msgbuf[MsgLen--] = 0;
666 while ( MsgLen >= 0
667 && ( card->msgbuf[MsgLen] == '\n'
668 || card->msgbuf[MsgLen] == '\r'))
669 card->msgbuf[MsgLen--] = 0;
670 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
671 break;
672
673 default:
674 printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n",
675 card->name, b1cmd);
676 return;
677 }
678 }
679
680 /* ------------------------------------------------------------- */
681
682 static void c4_handle_interrupt(avmcard *card)
683 {
684 __u32 status = c4inmeml(card->mbase+DOORBELL);
685
686 if (status & DBELL_RESET_HOST) {
687 int i;
688 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
689 printk(KERN_ERR "%s: unexpected reset\n", card->name);
690 for (i=0; i < 4; i++) {
691 avmctrl_info *cinfo = &card->ctrlinfo[i];
692 memset(cinfo->version, 0, sizeof(cinfo->version));
693 if (cinfo->capi_ctrl)
694 cinfo->capi_ctrl->reseted(cinfo->capi_ctrl);
695 }
696 return;
697 }
698
699 status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
700 if (!status)
701 return;
702 c4outmeml(card->mbase+DOORBELL, status);
703
704 if ((status & DBELL_UP_HOST) != 0) {
705 card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN);
706 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
707 c4_handle_rx(card);
708 card->dma->recvlen = 0;
709 c4outmeml(card->mbase+MBOX_UP_LEN, sizeof(card->dma->recvbuf));
710 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
711 }
712
713 if ((status & DBELL_DOWN_HOST) != 0) {
714 card->csr &= ~DBELL_DOWN_ARM;
715 c4_dispatch_tx(card);
716 } else if (card->csr & DBELL_DOWN_HOST) {
717 if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) {
718 card->csr &= ~DBELL_DOWN_ARM;
719 c4_dispatch_tx(card);
720 }
721 }
722 }
723
724 static void c4_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
725 {
726 avmcard *card;
727
728 card = (avmcard *) devptr;
729
730 if (!card) {
731 printk(KERN_WARNING "%s: interrupt: wrong device\n", card->name);
732 return;
733 }
734 if (card->interrupt) {
735 printk(KERN_ERR "%s: reentering interrupt hander\n",
736 card->name);
737 return;
738 }
739
740 card->interrupt = 1;
741
742 c4_handle_interrupt(card);
743
744 card->interrupt = 0;
745 }
746
747 /* ------------------------------------------------------------- */
748
749 static void c4_send_init(avmcard *card)
750 {
751 struct sk_buff *skb;
752 void *p;
753
754 skb = alloc_skb(15, GFP_ATOMIC);
755 if (!skb) {
756 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
757 card->name);
758 return;
759 }
760 p = skb->data;
761 _put_byte(&p, 0);
762 _put_byte(&p, 0);
763 _put_byte(&p, SEND_INIT);
764 _put_word(&p, AVM_NAPPS);
765 _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
766 _put_word(&p, card->cardnr - 1);
767 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
768
769 skb_queue_tail(&card->dma->send_queue, skb);
770 c4_dispatch_tx(card);
771 }
772
773 static int c4_send_config(avmcard *card, capiloaddatapart * config)
774 {
775 struct sk_buff *skb;
776 __u8 val[sizeof(__u32)];
777 void *p;
778 unsigned char *dp;
779 int left, retval;
780
781 skb = alloc_skb(12 + ((config->len+3)/4)*5, GFP_ATOMIC);
782 if (!skb) {
783 printk(KERN_CRIT "%s: no memory, can't send config.\n",
784 card->name);
785 return -ENOMEM;
786 }
787 p = skb->data;
788 _put_byte(&p, 0);
789 _put_byte(&p, 0);
790 _put_byte(&p, SEND_CONFIG);
791 _put_word(&p, 1);
792 _put_byte(&p, SEND_CONFIG);
793 _put_word(&p, config->len); /* 12 */
794
795 dp = config->data;
796 left = config->len;
797 while (left >= sizeof(__u32)) {
798 if (config->user) {
799 retval = copy_from_user(val, dp, sizeof(val));
800 if (retval) {
801 dev_kfree_skb(skb);
802 return -EFAULT;
803 }
804 } else {
805 memcpy(val, dp, sizeof(val));
806 }
807 _put_byte(&p, SEND_CONFIG);
808 _put_byte(&p, val[0]);
809 _put_byte(&p, val[1]);
810 _put_byte(&p, val[2]);
811 _put_byte(&p, val[3]);
812 left -= sizeof(val);
813 dp += sizeof(val);
814 }
815 if (left) {
816 memset(val, 0, sizeof(val));
817 if (config->user) {
818 retval = copy_from_user(&val, dp, left);
819 if (retval) {
820 dev_kfree_skb(skb);
821 return -EFAULT;
822 }
823 } else {
824 memcpy(&val, dp, left);
825 }
826 _put_byte(&p, SEND_CONFIG);
827 _put_byte(&p, val[0]);
828 _put_byte(&p, val[1]);
829 _put_byte(&p, val[2]);
830 _put_byte(&p, val[3]);
831 }
832
833 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
834
835 skb_queue_tail(&card->dma->send_queue, skb);
836 c4_dispatch_tx(card);
837
838 return 0;
839 }
840
841 static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
842 {
843 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
844 avmcard *card = cinfo->card;
845 unsigned long flags;
846 int retval;
847
848 if ((retval = c4_load_t4file(card, &data->firmware))) {
849 printk(KERN_ERR "%s: failed to load t4file!!\n",
850 card->name);
851 c4_reset(card);
852 return retval;
853 }
854
855 save_flags(flags);
856 cli();
857
858 card->csr = 0;
859 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
860 c4outmeml(card->mbase+MBOX_DOWN_LEN, 0);
861 c4outmeml(card->mbase+DOORBELL, DBELL_INIT);
862 udelay(1000);
863 c4outmeml(card->mbase+DOORBELL,
864 DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
865
866 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08);
867
868 card->dma->recvlen = 0;
869 c4outmeml(card->mbase+MBOX_UP_ADDR, virt_to_phys(card->dma->recvbuf));
870 c4outmeml(card->mbase+MBOX_UP_LEN, sizeof(card->dma->recvbuf));
871 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
872 restore_flags(flags);
873
874 if (data->configuration.len > 0 && data->configuration.data)
875 c4_send_config(card, &data->configuration);
876
877 c4_send_init(card);
878
879 return 0;
880 }
881
882
883 void c4_reset_ctr(struct capi_ctr *ctrl)
884 {
885 avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
886 avmctrl_info *cinfo;
887 int i;
888
889 c4_reset(card);
890
891 for (i=0; i < 4; i++) {
892 cinfo = &card->ctrlinfo[i];
893 memset(cinfo->version, 0, sizeof(cinfo->version));
894 if (cinfo->capi_ctrl)
895 cinfo->capi_ctrl->reseted(cinfo->capi_ctrl);
896 }
897 }
898
899 static void c4_remove_ctr(struct capi_ctr *ctrl)
900 {
901 avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
902 avmctrl_info *cinfo;
903 int i;
904
905 c4_reset(card);
906
907 for (i=0; i <= 4; i++) {
908 cinfo = &card->ctrlinfo[i];
909 if (cinfo->capi_ctrl)
910 di->detach_ctr(cinfo->capi_ctrl);
911 }
912
913 free_irq(card->irq, card);
914 iounmap((void *) (((unsigned long) card->mbase) & PAGE_MASK));
915 release_region(card->port, AVMB1_PORTLEN);
916 ctrl->driverdata = 0;
917 kfree(card->ctrlinfo);
918 kfree(card->dma);
919 kfree(card);
920
921 MOD_DEC_USE_COUNT;
922 }
923
924 /* ------------------------------------------------------------- */
925
926
927 void c4_register_appl(struct capi_ctr *ctrl,
928 __u16 appl,
929 capi_register_params *rp)
930 {
931 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
932 avmcard *card = cinfo->card;
933 struct sk_buff *skb;
934 int want = rp->level3cnt;
935 int nconn;
936 void *p;
937
938 if (ctrl->cnr == card->cardnr) {
939
940 if (want > 0) nconn = want;
941 else nconn = ctrl->profile.nbchannel * 4 * -want;
942 if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
943
944 skb = alloc_skb(23, GFP_ATOMIC);
945 if (!skb) {
946 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
947 card->name);
948 return;
949 }
950 p = skb->data;
951 _put_byte(&p, 0);
952 _put_byte(&p, 0);
953 _put_byte(&p, SEND_REGISTER);
954 _put_word(&p, appl);
955 _put_word(&p, 1024 * (nconn+1));
956 _put_word(&p, nconn);
957 _put_word(&p, rp->datablkcnt);
958 _put_word(&p, rp->datablklen);
959 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
960
961 skb_queue_tail(&card->dma->send_queue, skb);
962 c4_dispatch_tx(card);
963 }
964
965 ctrl->appl_registered(ctrl, appl);
966 }
967
968 /* ------------------------------------------------------------- */
969
970 void c4_release_appl(struct capi_ctr *ctrl, __u16 appl)
971 {
972 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
973 avmcard *card = cinfo->card;
974 struct sk_buff *skb;
975 void *p;
976
977 if (ctrl->cnr == card->cardnr) {
978 skb = alloc_skb(7, GFP_ATOMIC);
979 if (!skb) {
980 printk(KERN_CRIT "%s: no memory, lost release appl.\n",
981 card->name);
982 return;
983 }
984 p = skb->data;
985 _put_byte(&p, 0);
986 _put_byte(&p, 0);
987 _put_byte(&p, SEND_RELEASE);
988 _put_word(&p, appl);
989
990 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
991 skb_queue_tail(&card->dma->send_queue, skb);
992 c4_dispatch_tx(card);
993 }
994 }
995
996 /* ------------------------------------------------------------- */
997
998
999 static void c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
1000 {
1001 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1002 avmcard *card = cinfo->card;
1003 skb_queue_tail(&card->dma->send_queue, skb);
1004 c4_dispatch_tx(card);
1005 }
1006
1007 /* ------------------------------------------------------------- */
1008
1009 static char *c4_procinfo(struct capi_ctr *ctrl)
1010 {
1011 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1012
1013 if (!cinfo)
1014 return "";
1015 sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
1016 cinfo->cardname[0] ? cinfo->cardname : "-",
1017 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
1018 cinfo->card ? cinfo->card->port : 0x0,
1019 cinfo->card ? cinfo->card->irq : 0,
1020 cinfo->card ? cinfo->card->membase : 0
1021 );
1022 return cinfo->infobuf;
1023 }
1024
1025 static int c4_read_proc(char *page, char **start, off_t off,
1026 int count, int *eof, struct capi_ctr *ctrl)
1027 {
1028 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1029 avmcard *card = cinfo->card;
1030 __u8 flag;
1031 int len = 0;
1032 char *s;
1033
1034 len += sprintf(page+len, "%-16s %s\n", "name", card->name);
1035 len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
1036 len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
1037 len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
1038 switch (card->cardtype) {
1039 case avm_b1isa: s = "B1 ISA"; break;
1040 case avm_b1pci: s = "B1 PCI"; break;
1041 case avm_b1pcmcia: s = "B1 PCMCIA"; break;
1042 case avm_m1: s = "M1"; break;
1043 case avm_m2: s = "M2"; break;
1044 case avm_t1isa: s = "T1 ISA (HEMA)"; break;
1045 case avm_t1pci: s = "T1 PCI"; break;
1046 case avm_c4: s = "C4"; break;
1047 default: s = "???"; break;
1048 }
1049 len += sprintf(page+len, "%-16s %s\n", "type", s);
1050 if ((s = cinfo->version[VER_DRIVER]) != 0)
1051 len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
1052 if ((s = cinfo->version[VER_CARDTYPE]) != 0)
1053 len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
1054 if ((s = cinfo->version[VER_SERIAL]) != 0)
1055 len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
1056
1057 if (card->cardtype != avm_m1) {
1058 flag = ((__u8 *)(ctrl->profile.manu))[3];
1059 if (flag)
1060 len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
1061 "protocol",
1062 (flag & 0x01) ? " DSS1" : "",
1063 (flag & 0x02) ? " CT1" : "",
1064 (flag & 0x04) ? " VN3" : "",
1065 (flag & 0x08) ? " NI1" : "",
1066 (flag & 0x10) ? " AUSTEL" : "",
1067 (flag & 0x20) ? " ESS" : "",
1068 (flag & 0x40) ? " 1TR6" : ""
1069 );
1070 }
1071 if (card->cardtype != avm_m1) {
1072 flag = ((__u8 *)(ctrl->profile.manu))[5];
1073 if (flag)
1074 len += sprintf(page+len, "%-16s%s%s%s%s\n",
1075 "linetype",
1076 (flag & 0x01) ? " point to point" : "",
1077 (flag & 0x02) ? " point to multipoint" : "",
1078 (flag & 0x08) ? " leased line without D-channel" : "",
1079 (flag & 0x04) ? " leased line with D-channel" : ""
1080 );
1081 }
1082 len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
1083
1084 if (off+count >= len)
1085 *eof = 1;
1086 if (len < off)
1087 return 0;
1088 *start = page + off;
1089 return ((count < len-off) ? count : len-off);
1090 }
1091
1092 /* ------------------------------------------------------------- */
1093
1094 static int c4_add_card(struct capi_driver *driver, struct capicardparams *p)
1095 {
1096 unsigned long base, page_offset;
1097 avmctrl_info *cinfo;
1098 avmcard *card;
1099 int retval;
1100 int i;
1101
1102 MOD_INC_USE_COUNT;
1103
1104 card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
1105
1106 if (!card) {
1107 printk(KERN_WARNING "%s: no memory.\n", driver->name);
1108 MOD_DEC_USE_COUNT;
1109 return -ENOMEM;
1110 }
1111 memset(card, 0, sizeof(avmcard));
1112 card->dma = (avmcard_dmainfo *) kmalloc(sizeof(avmcard_dmainfo), GFP_ATOMIC);
1113 if (!card->dma) {
1114 printk(KERN_WARNING "%s: no memory.\n", driver->name);
1115 kfree(card);
1116 MOD_DEC_USE_COUNT;
1117 return -ENOMEM;
1118 }
1119 memset(card->dma, 0, sizeof(avmcard_dmainfo));
1120 cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info)*4, GFP_ATOMIC);
1121 if (!cinfo) {
1122 printk(KERN_WARNING "%s: no memory.\n", driver->name);
1123 kfree(card->ctrlinfo);
1124 kfree(card->dma);
1125 kfree(card);
1126 MOD_DEC_USE_COUNT;
1127 return -ENOMEM;
1128 }
1129 memset(cinfo, 0, sizeof(avmctrl_info)*4);
1130 card->ctrlinfo = cinfo;
1131 for (i=0; i < 4; i++) {
1132 cinfo = &card->ctrlinfo[i];
1133 cinfo->card = card;
1134 }
1135 sprintf(card->name, "c4-%x", p->port);
1136 card->port = p->port;
1137 card->irq = p->irq;
1138 card->membase = p->membase;
1139 card->cardtype = avm_c4;
1140
1141 if (check_region(card->port, AVMB1_PORTLEN)) {
1142 printk(KERN_WARNING
1143 "%s: ports 0x%03x-0x%03x in use.\n",
1144 driver->name, card->port, card->port + AVMB1_PORTLEN);
1145 kfree(card->ctrlinfo);
1146 kfree(card->dma);
1147 kfree(card);
1148 MOD_DEC_USE_COUNT;
1149 return -EBUSY;
1150 }
1151
1152 base = card->membase & PAGE_MASK;
1153 page_offset = card->membase - base;
1154 card->mbase = ioremap_nocache(base, page_offset + 128);
1155 if (card->mbase) {
1156 card->mbase += page_offset;
1157 } else {
1158 printk(KERN_NOTICE "%s: can't remap memory at 0x%lx\n",
1159 driver->name, card->membase);
1160 kfree(card->ctrlinfo);
1161 kfree(card->dma);
1162 kfree(card);
1163 MOD_DEC_USE_COUNT;
1164 return -EIO;
1165 }
1166
1167 if ((retval = c4_detect(card)) != 0) {
1168 printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n",
1169 driver->name, card->port, retval);
1170 iounmap((void *) (((unsigned long) card->mbase) & PAGE_MASK));
1171 kfree(card->ctrlinfo);
1172 kfree(card->dma);
1173 kfree(card);
1174 MOD_DEC_USE_COUNT;
1175 return -EIO;
1176 }
1177 c4_reset(card);
1178
1179 request_region(p->port, AVMB1_PORTLEN, card->name);
1180
1181 retval = request_irq(card->irq, c4_interrupt, SA_SHIRQ, card->name, card);
1182 if (retval) {
1183 printk(KERN_ERR "%s: unable to get IRQ %d.\n",
1184 driver->name, card->irq);
1185 iounmap((void *) (((unsigned long) card->mbase) & PAGE_MASK));
1186 release_region(card->port, AVMB1_PORTLEN);
1187 kfree(card->ctrlinfo);
1188 kfree(card->dma);
1189 kfree(card);
1190 MOD_DEC_USE_COUNT;
1191 return -EBUSY;
1192 }
1193
1194 for (i=0; i < 4; i++) {
1195 cinfo = &card->ctrlinfo[i];
1196 cinfo->card = card;
1197 cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
1198 if (!cinfo->capi_ctrl) {
1199 printk(KERN_ERR "%s: attach controller failed (%d).\n",
1200 driver->name, i);
1201 for (i--; i >= 0; i--) {
1202 cinfo = &card->ctrlinfo[i];
1203 di->detach_ctr(cinfo->capi_ctrl);
1204 }
1205 iounmap((void *) (((unsigned long) card->mbase) & PAGE_MASK));
1206 free_irq(card->irq, card);
1207 release_region(card->port, AVMB1_PORTLEN);
1208 kfree(card->dma);
1209 kfree(card->ctrlinfo);
1210 kfree(card);
1211 MOD_DEC_USE_COUNT;
1212 return -EBUSY;
1213 }
1214 if (i == 0)
1215 card->cardnr = cinfo->capi_ctrl->cnr;
1216 }
1217
1218 skb_queue_head_init(&card->dma->send_queue);
1219
1220 printk(KERN_INFO
1221 "%s: AVM C4 at i/o %#x, irq %d, mem %#lx\n",
1222 driver->name, card->port, card->irq, card->membase);
1223
1224 return 0;
1225 }
1226
1227 /* ------------------------------------------------------------- */
1228
1229 static struct capi_driver c4_driver = {
1230 "c4",
1231 "0.0",
1232 c4_load_firmware,
1233 c4_reset_ctr,
1234 c4_remove_ctr,
1235 c4_register_appl,
1236 c4_release_appl,
1237 c4_send_message,
1238
1239 c4_procinfo,
1240 c4_read_proc,
1241 0, /* use standard driver_read_proc */
1242
1243 0, /* no add_card function */
1244 };
1245
1246 #ifdef MODULE
1247 #define c4_init init_module
1248 void cleanup_module(void);
1249 #endif
1250
1251
1252 static int ncards = 0;
1253
1254 int c4_init(void)
1255 {
1256 struct capi_driver *driver = &c4_driver;
1257 struct pci_dev *dev = NULL;
1258 char *p;
1259 int retval;
1260
1261 if ((p = strchr(revision, ':'))) {
1262 strncpy(driver->revision, p + 1, sizeof(driver->revision));
1263 p = strchr(driver->revision, '$');
1264 *p = 0;
1265 }
1266
1267 printk(KERN_INFO "%s: revision %s\n", driver->name, driver->revision);
1268
1269 di = attach_capi_driver(driver);
1270
1271 if (!di) {
1272 printk(KERN_ERR "%s: failed to attach capi_driver\n",
1273 driver->name);
1274 return -EIO;
1275 }
1276
1277 #ifdef CONFIG_PCI
1278 if (!pci_present()) {
1279 printk(KERN_ERR "%s: no PCI bus present\n", driver->name);
1280 detach_capi_driver(driver);
1281 return -EIO;
1282 }
1283
1284 while ((dev = pci_find_subsys(
1285 PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285,
1286 PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, dev))) {
1287 struct capicardparams param;
1288
1289 param.port = dev->resource[ 1].start & PCI_BASE_ADDRESS_IO_MASK;
1290 param.irq = dev->irq;
1291 param.membase = dev->resource[ 0].start & PCI_BASE_ADDRESS_MEM_MASK;
1292
1293 printk(KERN_INFO
1294 "%s: PCI BIOS reports AVM-C4 at i/o %#x, irq %d, mem %#x\n",
1295 driver->name, param.port, param.irq, param.membase);
1296 retval = c4_add_card(driver, &param);
1297 if (retval != 0) {
1298 printk(KERN_ERR
1299 "%s: no AVM-C4 at i/o %#x, irq %d detected, mem %#x\n",
1300 driver->name, param.port, param.irq, param.membase);
1301 #ifdef MODULE
1302 cleanup_module();
1303 #endif
1304 return retval;
1305 }
1306 ncards++;
1307 }
1308 if (ncards) {
1309 printk(KERN_INFO "%s: %d C4 card(s) detected\n",
1310 driver->name, ncards);
1311 return 0;
1312 }
1313 printk(KERN_ERR "%s: NO C4 card detected\n", driver->name);
1314 return -ESRCH;
1315 #else
1316 printk(KERN_ERR "%s: kernel not compiled with PCI.\n", driver->name);
1317 return -EIO;
1318 #endif
1319 }
1320
1321 #ifdef MODULE
1322 void cleanup_module(void)
1323 {
1324 detach_capi_driver(&c4_driver);
1325 }
1326 #endif
Copy of Dave Jones history.git as used by http://archive.org/details/git-history-of-linux