File: /usr/src/linux/drivers/isdn/avmb1/c4.c
1 /*
2 * $Id: c4.c,v 1.20.6.10 2001/06/09 15:14:15 kai Exp $
3 *
4 * Module for AVM C4 & C2 card.
5 *
6 * (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de)
7 *
8 */
9
10 #include <linux/config.h>
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/skbuff.h>
14 #include <linux/delay.h>
15 #include <linux/mm.h>
16 #include <linux/interrupt.h>
17 #include <linux/ioport.h>
18 #include <linux/pci.h>
19 #include <linux/capi.h>
20 #include <linux/kernelcapi.h>
21 #include <linux/init.h>
22 #include <asm/io.h>
23 #include <asm/uaccess.h>
24 #include <linux/netdevice.h>
25 #include "capicmd.h"
26 #include "capiutil.h"
27 #include "capilli.h"
28 #include "avmcard.h"
29
30 static char *revision = "$Revision: 1.20.6.10 $";
31
32 #undef CONFIG_C4_DEBUG
33 #undef CONFIG_C4_POLLDEBUG
34
35 /* ------------------------------------------------------------- */
36
37 static int suppress_pollack;
38
39 static struct pci_device_id c4_pci_tbl[] __initdata = {
40 { PCI_VENDOR_ID_DEC,PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4 },
41 { PCI_VENDOR_ID_DEC,PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2 },
42 { } /* Terminating entry */
43 };
44
45 MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
46 MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
47 MODULE_PARM(suppress_pollack, "0-1i");
48
49 /* ------------------------------------------------------------- */
50
51 static struct capi_driver_interface *di;
52
53 /* ------------------------------------------------------------- */
54
55 static void c4_dispatch_tx(avmcard *card);
56
57 /* ------------------------------------------------------------- */
58
59 #define DC21285_DRAM_A0MR 0x40000000
60 #define DC21285_DRAM_A1MR 0x40004000
61 #define DC21285_DRAM_A2MR 0x40008000
62 #define DC21285_DRAM_A3MR 0x4000C000
63
64 #define CAS_OFFSET 0x88
65
66 #define DC21285_ARMCSR_BASE 0x42000000
67
68 #define PCI_OUT_INT_STATUS 0x30
69 #define PCI_OUT_INT_MASK 0x34
70 #define MAILBOX_0 0x50
71 #define MAILBOX_1 0x54
72 #define MAILBOX_2 0x58
73 #define MAILBOX_3 0x5C
74 #define DOORBELL 0x60
75 #define DOORBELL_SETUP 0x64
76
77 #define CHAN_1_CONTROL 0x90
78 #define CHAN_2_CONTROL 0xB0
79 #define DRAM_TIMING 0x10C
80 #define DRAM_ADDR_SIZE_0 0x110
81 #define DRAM_ADDR_SIZE_1 0x114
82 #define DRAM_ADDR_SIZE_2 0x118
83 #define DRAM_ADDR_SIZE_3 0x11C
84 #define SA_CONTROL 0x13C
85 #define XBUS_CYCLE 0x148
86 #define XBUS_STROBE 0x14C
87 #define DBELL_PCI_MASK 0x150
88 #define DBELL_SA_MASK 0x154
89
90 #define SDRAM_SIZE 0x1000000
91
92 /* ------------------------------------------------------------- */
93
94 #define MBOX_PEEK_POKE MAILBOX_0
95
96 #define DBELL_ADDR 0x01
97 #define DBELL_DATA 0x02
98 #define DBELL_RNWR 0x40
99 #define DBELL_INIT 0x80
100
101 /* ------------------------------------------------------------- */
102
103 #define MBOX_UP_ADDR MAILBOX_0
104 #define MBOX_UP_LEN MAILBOX_1
105 #define MBOX_DOWN_ADDR MAILBOX_2
106 #define MBOX_DOWN_LEN MAILBOX_3
107
108 #define DBELL_UP_HOST 0x00000100
109 #define DBELL_UP_ARM 0x00000200
110 #define DBELL_DOWN_HOST 0x00000400
111 #define DBELL_DOWN_ARM 0x00000800
112 #define DBELL_RESET_HOST 0x40000000
113 #define DBELL_RESET_ARM 0x80000000
114
115 /* ------------------------------------------------------------- */
116
117 #define DRAM_TIMING_DEF 0x001A01A5
118 #define DRAM_AD_SZ_DEF0 0x00000045
119 #define DRAM_AD_SZ_NULL 0x00000000
120
121 #define SA_CTL_ALLRIGHT 0x64AA0271
122
123 #define INIT_XBUS_CYCLE 0x100016DB
124 #define INIT_XBUS_STROBE 0xF1F1F1F1
125
126 /* ------------------------------------------------------------- */
127
128 #define RESET_TIMEOUT (15*HZ) /* 15 sec */
129 #define PEEK_POKE_TIMEOUT (HZ/10) /* 0.1 sec */
130
131 /* ------------------------------------------------------------- */
132
133 #define c4outmeml(addr, value) writel(value, addr)
134 #define c4inmeml(addr) readl(addr)
135 #define c4outmemw(addr, value) writew(value, addr)
136 #define c4inmemw(addr) readw(addr)
137 #define c4outmemb(addr, value) writeb(value, addr)
138 #define c4inmemb(addr) readb(addr)
139
140 /* ------------------------------------------------------------- */
141
142 static inline int wait_for_doorbell(avmcard *card, unsigned long t)
143 {
144 unsigned long stop;
145
146 stop = jiffies + t;
147 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
148 if (!time_before(jiffies, stop))
149 return -1;
150 }
151 return 0;
152 }
153
154 static int c4_poke(avmcard *card, unsigned long off, unsigned long value)
155 {
156
157 if (wait_for_doorbell(card, HZ/10) < 0)
158 return -1;
159
160 c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
161 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
162
163 if (wait_for_doorbell(card, HZ/10) < 0)
164 return -1;
165
166 c4outmeml(card->mbase+MBOX_PEEK_POKE, value);
167 c4outmeml(card->mbase+DOORBELL, DBELL_DATA | DBELL_ADDR);
168
169 return 0;
170 }
171
172 static int c4_peek(avmcard *card, unsigned long off, unsigned long *valuep)
173 {
174 if (wait_for_doorbell(card, HZ/10) < 0)
175 return -1;
176
177 c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
178 c4outmeml(card->mbase+DOORBELL, DBELL_RNWR | DBELL_ADDR);
179
180 if (wait_for_doorbell(card, HZ/10) < 0)
181 return -1;
182
183 *valuep = c4inmeml(card->mbase+MBOX_PEEK_POKE);
184
185 return 0;
186 }
187
188 /* ------------------------------------------------------------- */
189
190 static int c4_load_t4file(avmcard *card, capiloaddatapart * t4file)
191 {
192 __u32 val;
193 unsigned char *dp;
194 int left, retval;
195 __u32 loadoff = 0;
196
197 dp = t4file->data;
198 left = t4file->len;
199 while (left >= sizeof(__u32)) {
200 if (t4file->user) {
201 retval = copy_from_user(&val, dp, sizeof(val));
202 if (retval)
203 return -EFAULT;
204 } else {
205 memcpy(&val, dp, sizeof(val));
206 }
207 if (c4_poke(card, loadoff, val)) {
208 printk(KERN_ERR "%s: corrupted firmware file ?\n",
209 card->name);
210 return -EIO;
211 }
212 left -= sizeof(__u32);
213 dp += sizeof(__u32);
214 loadoff += sizeof(__u32);
215 }
216 if (left) {
217 val = 0;
218 if (t4file->user) {
219 retval = copy_from_user(&val, dp, left);
220 if (retval)
221 return -EFAULT;
222 } else {
223 memcpy(&val, dp, left);
224 }
225 if (c4_poke(card, loadoff, val)) {
226 printk(KERN_ERR "%s: corrupted firmware file ?\n",
227 card->name);
228 return -EIO;
229 }
230 }
231 return 0;
232 }
233
234 /* ------------------------------------------------------------- */
235
236 static inline void _put_byte(void **pp, __u8 val)
237 {
238 __u8 *s = *pp;
239 *s++ = val;
240 *pp = s;
241 }
242
243 static inline void _put_word(void **pp, __u32 val)
244 {
245 __u8 *s = *pp;
246 *s++ = val & 0xff;
247 *s++ = (val >> 8) & 0xff;
248 *s++ = (val >> 16) & 0xff;
249 *s++ = (val >> 24) & 0xff;
250 *pp = s;
251 }
252
253 static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len)
254 {
255 unsigned i = len;
256 _put_word(pp, i);
257 while (i-- > 0)
258 _put_byte(pp, *dp++);
259 }
260
261 static inline __u8 _get_byte(void **pp)
262 {
263 __u8 *s = *pp;
264 __u8 val;
265 val = *s++;
266 *pp = s;
267 return val;
268 }
269
270 static inline __u32 _get_word(void **pp)
271 {
272 __u8 *s = *pp;
273 __u32 val;
274 val = *s++;
275 val |= (*s++ << 8);
276 val |= (*s++ << 16);
277 val |= (*s++ << 24);
278 *pp = s;
279 return val;
280 }
281
282 static inline __u32 _get_slice(void **pp, unsigned char *dp)
283 {
284 unsigned int len, i;
285
286 len = i = _get_word(pp);
287 while (i-- > 0) *dp++ = _get_byte(pp);
288 return len;
289 }
290
291 /* ------------------------------------------------------------- */
292
293 static void c4_reset(avmcard *card)
294 {
295 unsigned long stop;
296
297 c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
298
299 stop = jiffies + HZ*10;
300 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
301 if (!time_before(jiffies, stop))
302 return;
303 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
304 }
305
306 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
307 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
308 }
309
310 /* ------------------------------------------------------------- */
311
312 static int c4_detect(avmcard *card)
313 {
314 unsigned long stop, dummy;
315
316 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
317 if (c4inmeml(card->mbase+PCI_OUT_INT_MASK) != 0x0c)
318 return 1;
319
320 c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
321
322 stop = jiffies + HZ*10;
323 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
324 if (!time_before(jiffies, stop))
325 return 2;
326 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
327 }
328
329 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
330 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
331
332 c4outmeml(card->mbase+MAILBOX_0, 0x55aa55aa);
333 if (c4inmeml(card->mbase+MAILBOX_0) != 0x55aa55aa) return 3;
334
335 c4outmeml(card->mbase+MAILBOX_0, 0xaa55aa55);
336 if (c4inmeml(card->mbase+MAILBOX_0) != 0xaa55aa55) return 4;
337
338 if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_SA_MASK, 0)) return 5;
339 if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_PCI_MASK, 0)) return 6;
340 if (c4_poke(card, DC21285_ARMCSR_BASE+SA_CONTROL, SA_CTL_ALLRIGHT))
341 return 7;
342 if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_CYCLE, INIT_XBUS_CYCLE))
343 return 8;
344 if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_STROBE, INIT_XBUS_STROBE))
345 return 8;
346 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, 0)) return 9;
347
348 mdelay(1);
349
350 if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10;
351 if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11;
352 if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12;
353 if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13;
354
355 if (c4_poke(card, DC21285_DRAM_A0MR+CAS_OFFSET, 0)) return 14;
356 if (c4_poke(card, DC21285_DRAM_A1MR+CAS_OFFSET, 0)) return 15;
357 if (c4_poke(card, DC21285_DRAM_A2MR+CAS_OFFSET, 0)) return 16;
358 if (c4_poke(card, DC21285_DRAM_A3MR+CAS_OFFSET, 0)) return 17;
359
360 mdelay(1);
361
362 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, DRAM_TIMING_DEF))
363 return 18;
364
365 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_0,DRAM_AD_SZ_DEF0))
366 return 19;
367 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_1,DRAM_AD_SZ_NULL))
368 return 20;
369 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_2,DRAM_AD_SZ_NULL))
370 return 21;
371 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_3,DRAM_AD_SZ_NULL))
372 return 22;
373
374 /* Transputer test */
375
376 if ( c4_poke(card, 0x000000, 0x11111111)
377 || c4_poke(card, 0x400000, 0x22222222)
378 || c4_poke(card, 0x800000, 0x33333333)
379 || c4_poke(card, 0xC00000, 0x44444444))
380 return 23;
381
382 if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111
383 || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222
384 || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333
385 || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444)
386 return 24;
387
388 if ( c4_poke(card, 0x000000, 0x55555555)
389 || c4_poke(card, 0x400000, 0x66666666)
390 || c4_poke(card, 0x800000, 0x77777777)
391 || c4_poke(card, 0xC00000, 0x88888888))
392 return 25;
393
394 if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555
395 || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666
396 || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777
397 || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888)
398 return 26;
399
400 return 0;
401 }
402
403 /* ------------------------------------------------------------- */
404
405 static void c4_dispatch_tx(avmcard *card)
406 {
407 avmcard_dmainfo *dma = card->dma;
408 unsigned long flags;
409 struct sk_buff *skb;
410 __u8 cmd, subcmd;
411 __u16 len;
412 __u32 txlen;
413 void *p;
414
415 save_flags(flags);
416 cli();
417
418 if (card->csr & DBELL_DOWN_ARM) { /* tx busy */
419 restore_flags(flags);
420 return;
421 }
422
423 skb = skb_dequeue(&dma->send_queue);
424 if (!skb) {
425 #ifdef CONFIG_C4_DEBUG
426 printk(KERN_DEBUG "%s: tx underrun\n", card->name);
427 #endif
428 restore_flags(flags);
429 return;
430 }
431
432 len = CAPIMSG_LEN(skb->data);
433
434 if (len) {
435 cmd = CAPIMSG_COMMAND(skb->data);
436 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
437
438 p = dma->sendbuf;
439
440 if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
441 __u16 dlen = CAPIMSG_DATALEN(skb->data);
442 _put_byte(&p, SEND_DATA_B3_REQ);
443 _put_slice(&p, skb->data, len);
444 _put_slice(&p, skb->data + len, dlen);
445 } else {
446 _put_byte(&p, SEND_MESSAGE);
447 _put_slice(&p, skb->data, len);
448 }
449 txlen = (__u8 *)p - (__u8 *)dma->sendbuf;
450 #ifdef CONFIG_C4_DEBUG
451 printk(KERN_DEBUG "%s: tx put msg len=%d\n", card->name, txlen);
452 #endif
453 } else {
454 txlen = skb->len-2;
455 #ifdef CONFIG_C4_POLLDEBUG
456 if (skb->data[2] == SEND_POLLACK)
457 printk(KERN_INFO "%s: ack to c4\n", card->name);
458 #endif
459 #ifdef CONFIG_C4_DEBUG
460 printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
461 card->name, skb->data[2], txlen);
462 #endif
463 memcpy(dma->sendbuf, skb->data+2, skb->len-2);
464 }
465 txlen = (txlen + 3) & ~3;
466
467 c4outmeml(card->mbase+MBOX_DOWN_ADDR, virt_to_phys(dma->sendbuf));
468 c4outmeml(card->mbase+MBOX_DOWN_LEN, txlen);
469
470 card->csr |= DBELL_DOWN_ARM;
471
472 c4outmeml(card->mbase+DOORBELL, DBELL_DOWN_ARM);
473
474 restore_flags(flags);
475 dev_kfree_skb_any(skb);
476 }
477
478 /* ------------------------------------------------------------- */
479
480 static void queue_pollack(avmcard *card)
481 {
482 struct sk_buff *skb;
483 void *p;
484
485 skb = alloc_skb(3, GFP_ATOMIC);
486 if (!skb) {
487 printk(KERN_CRIT "%s: no memory, lost poll ack\n",
488 card->name);
489 return;
490 }
491 p = skb->data;
492 _put_byte(&p, 0);
493 _put_byte(&p, 0);
494 _put_byte(&p, SEND_POLLACK);
495 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
496
497 skb_queue_tail(&card->dma->send_queue, skb);
498 c4_dispatch_tx(card);
499 }
500
501 /* ------------------------------------------------------------- */
502
503 static void c4_handle_rx(avmcard *card)
504 {
505 avmcard_dmainfo *dma = card->dma;
506 struct capi_ctr *ctrl;
507 avmctrl_info *cinfo;
508 struct sk_buff *skb;
509 void *p = dma->recvbuf;
510 __u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
511 __u8 b1cmd = _get_byte(&p);
512 __u32 cidx;
513
514
515 #ifdef CONFIG_C4_DEBUG
516 printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name,
517 b1cmd, (unsigned long)dma->recvlen);
518 #endif
519
520 switch (b1cmd) {
521 case RECEIVE_DATA_B3_IND:
522
523 ApplId = (unsigned) _get_word(&p);
524 MsgLen = _get_slice(&p, card->msgbuf);
525 DataB3Len = _get_slice(&p, card->databuf);
526 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
527 if (cidx >= card->nlogcontr) cidx = 0;
528 ctrl = card->ctrlinfo[cidx].capi_ctrl;
529
530 if (MsgLen < 30) { /* not CAPI 64Bit */
531 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
532 MsgLen = 30;
533 CAPIMSG_SETLEN(card->msgbuf, 30);
534 }
535 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
536 printk(KERN_ERR "%s: incoming packet dropped\n",
537 card->name);
538 } else {
539 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
540 memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
541 ctrl->handle_capimsg(ctrl, ApplId, skb);
542 }
543 break;
544
545 case RECEIVE_MESSAGE:
546
547 ApplId = (unsigned) _get_word(&p);
548 MsgLen = _get_slice(&p, card->msgbuf);
549 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
550 if (cidx >= card->nlogcontr) cidx = 0;
551 ctrl = card->ctrlinfo[cidx].capi_ctrl;
552
553 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
554 printk(KERN_ERR "%s: incoming packet dropped\n",
555 card->name);
556 } else {
557 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
558 ctrl->handle_capimsg(ctrl, ApplId, skb);
559 }
560 break;
561
562 case RECEIVE_NEW_NCCI:
563
564 ApplId = _get_word(&p);
565 NCCI = _get_word(&p);
566 WindowSize = _get_word(&p);
567 cidx = (NCCI&0x7f) - card->cardnr;
568 if (cidx >= card->nlogcontr) cidx = 0;
569 ctrl = card->ctrlinfo[cidx].capi_ctrl;
570
571 ctrl->new_ncci(ctrl, ApplId, NCCI, WindowSize);
572
573 break;
574
575 case RECEIVE_FREE_NCCI:
576
577 ApplId = _get_word(&p);
578 NCCI = _get_word(&p);
579
580 if (NCCI != 0xffffffff) {
581 cidx = (NCCI&0x7f) - card->cardnr;
582 if (cidx >= card->nlogcontr) cidx = 0;
583 ctrl = card->ctrlinfo[cidx].capi_ctrl;
584 if (ctrl)
585 ctrl->free_ncci(ctrl, ApplId, NCCI);
586 } else {
587 for (cidx=0; cidx < 4; cidx++) {
588 ctrl = card->ctrlinfo[cidx].capi_ctrl;
589 if (ctrl)
590 ctrl->appl_released(ctrl, ApplId);
591 }
592 }
593 break;
594
595 case RECEIVE_START:
596 #ifdef CONFIG_C4_POLLDEBUG
597 printk(KERN_INFO "%s: poll from c4\n", card->name);
598 #endif
599 if (!suppress_pollack)
600 queue_pollack(card);
601 for (cidx=0; cidx < 4; cidx++) {
602 ctrl = card->ctrlinfo[cidx].capi_ctrl;
603 if (ctrl)
604 ctrl->resume_output(ctrl);
605 }
606 break;
607
608 case RECEIVE_STOP:
609 for (cidx=0; cidx < 4; cidx++) {
610 ctrl = card->ctrlinfo[cidx].capi_ctrl;
611 if (ctrl)
612 ctrl->suspend_output(ctrl);
613 }
614 break;
615
616 case RECEIVE_INIT:
617
618 cidx = card->nlogcontr;
619 if (cidx >= 4 || !card->ctrlinfo[cidx].capi_ctrl) {
620 printk(KERN_ERR "%s: card with %d controllers ??\n",
621 card->name, cidx+1);
622 break;
623 }
624 card->nlogcontr++;
625 cinfo = &card->ctrlinfo[cidx];
626 ctrl = cinfo->capi_ctrl;
627 cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
628 b1_parse_version(cinfo);
629 printk(KERN_INFO "%s: %s-card (%s) now active\n",
630 card->name,
631 cinfo->version[VER_CARDTYPE],
632 cinfo->version[VER_DRIVER]);
633 ctrl->ready(cinfo->capi_ctrl);
634 break;
635
636 case RECEIVE_TASK_READY:
637 ApplId = (unsigned) _get_word(&p);
638 MsgLen = _get_slice(&p, card->msgbuf);
639 card->msgbuf[MsgLen] = 0;
640 while ( MsgLen > 0
641 && ( card->msgbuf[MsgLen-1] == '\n'
642 || card->msgbuf[MsgLen-1] == '\r')) {
643 card->msgbuf[MsgLen-1] = 0;
644 MsgLen--;
645 }
646 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
647 card->name, ApplId, card->msgbuf);
648 break;
649
650 case RECEIVE_DEBUGMSG:
651 MsgLen = _get_slice(&p, card->msgbuf);
652 card->msgbuf[MsgLen] = 0;
653 while ( MsgLen > 0
654 && ( card->msgbuf[MsgLen-1] == '\n'
655 || card->msgbuf[MsgLen-1] == '\r')) {
656 card->msgbuf[MsgLen-1] = 0;
657 MsgLen--;
658 }
659 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
660 break;
661
662 default:
663 printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n",
664 card->name, b1cmd);
665 return;
666 }
667 }
668
669 /* ------------------------------------------------------------- */
670
671 static void c4_handle_interrupt(avmcard *card)
672 {
673 __u32 status = c4inmeml(card->mbase+DOORBELL);
674
675 if (status & DBELL_RESET_HOST) {
676 int i;
677 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
678 if (card->nlogcontr == 0)
679 return;
680 printk(KERN_ERR "%s: unexpected reset\n", card->name);
681 for (i=0; i < 4; i++) {
682 avmctrl_info *cinfo = &card->ctrlinfo[i];
683 memset(cinfo->version, 0, sizeof(cinfo->version));
684 if (cinfo->capi_ctrl)
685 cinfo->capi_ctrl->reseted(cinfo->capi_ctrl);
686 }
687 card->nlogcontr = 0;
688 return;
689 }
690
691 status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
692 if (!status)
693 return;
694 c4outmeml(card->mbase+DOORBELL, status);
695
696 if ((status & DBELL_UP_HOST) != 0) {
697 card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN);
698 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
699 c4_handle_rx(card);
700 card->dma->recvlen = 0;
701 c4outmeml(card->mbase+MBOX_UP_LEN, sizeof(card->dma->recvbuf));
702 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
703 }
704
705 if ((status & DBELL_DOWN_HOST) != 0) {
706 card->csr &= ~DBELL_DOWN_ARM;
707 c4_dispatch_tx(card);
708 } else if (card->csr & DBELL_DOWN_HOST) {
709 if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) {
710 card->csr &= ~DBELL_DOWN_ARM;
711 c4_dispatch_tx(card);
712 }
713 }
714 }
715
716 static void c4_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
717 {
718 avmcard *card;
719
720 card = (avmcard *) devptr;
721
722 if (!card) {
723 printk(KERN_WARNING "%s: interrupt: wrong device\n", card->name);
724 return;
725 }
726 if (card->interrupt) {
727 printk(KERN_ERR "%s: reentering interrupt hander\n",
728 card->name);
729 return;
730 }
731
732 card->interrupt = 1;
733
734 c4_handle_interrupt(card);
735
736 card->interrupt = 0;
737 }
738
739 /* ------------------------------------------------------------- */
740
741 static void c4_send_init(avmcard *card)
742 {
743 struct sk_buff *skb;
744 void *p;
745
746 skb = alloc_skb(15, GFP_ATOMIC);
747 if (!skb) {
748 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
749 card->name);
750 return;
751 }
752 p = skb->data;
753 _put_byte(&p, 0);
754 _put_byte(&p, 0);
755 _put_byte(&p, SEND_INIT);
756 _put_word(&p, CAPI_MAXAPPL);
757 _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
758 _put_word(&p, card->cardnr - 1);
759 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
760
761 skb_queue_tail(&card->dma->send_queue, skb);
762 c4_dispatch_tx(card);
763 }
764
765 static int queue_sendconfigword(avmcard *card, __u32 val)
766 {
767 struct sk_buff *skb;
768 void *p;
769
770 skb = alloc_skb(3+4, GFP_ATOMIC);
771 if (!skb) {
772 printk(KERN_CRIT "%s: no memory, send config\n",
773 card->name);
774 return -ENOMEM;
775 }
776 p = skb->data;
777 _put_byte(&p, 0);
778 _put_byte(&p, 0);
779 _put_byte(&p, SEND_CONFIG);
780 _put_word(&p, val);
781 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
782
783 skb_queue_tail(&card->dma->send_queue, skb);
784 c4_dispatch_tx(card);
785 return 0;
786 }
787
788 static int queue_sendconfig(avmcard *card, char cval[4])
789 {
790 struct sk_buff *skb;
791 void *p;
792
793 skb = alloc_skb(3+4, GFP_ATOMIC);
794 if (!skb) {
795 printk(KERN_CRIT "%s: no memory, send config\n",
796 card->name);
797 return -ENOMEM;
798 }
799 p = skb->data;
800 _put_byte(&p, 0);
801 _put_byte(&p, 0);
802 _put_byte(&p, SEND_CONFIG);
803 _put_byte(&p, cval[0]);
804 _put_byte(&p, cval[1]);
805 _put_byte(&p, cval[2]);
806 _put_byte(&p, cval[3]);
807 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
808
809 skb_queue_tail(&card->dma->send_queue, skb);
810 c4_dispatch_tx(card);
811 return 0;
812 }
813
814 static int c4_send_config(avmcard *card, capiloaddatapart * config)
815 {
816 __u8 val[4];
817 unsigned char *dp;
818 int left, retval;
819
820 if ((retval = queue_sendconfigword(card, 1)) != 0)
821 return retval;
822 if ((retval = queue_sendconfigword(card, config->len)) != 0)
823 return retval;
824
825 dp = config->data;
826 left = config->len;
827 while (left >= sizeof(__u32)) {
828 if (config->user) {
829 retval = copy_from_user(val, dp, sizeof(val));
830 if (retval)
831 return -EFAULT;
832 } else {
833 memcpy(val, dp, sizeof(val));
834 }
835 if ((retval = queue_sendconfig(card, val)) != 0)
836 return retval;
837 left -= sizeof(val);
838 dp += sizeof(val);
839 }
840 if (left) {
841 memset(val, 0, sizeof(val));
842 if (config->user) {
843 retval = copy_from_user(&val, dp, left);
844 if (retval)
845 return -EFAULT;
846 } else {
847 memcpy(&val, dp, left);
848 }
849 if ((retval = queue_sendconfig(card, val)) != 0)
850 return retval;
851 }
852
853 return 0;
854 }
855
856 static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
857 {
858 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
859 avmcard *card = cinfo->card;
860 unsigned long flags;
861 int retval;
862
863 if ((retval = c4_load_t4file(card, &data->firmware))) {
864 printk(KERN_ERR "%s: failed to load t4file!!\n",
865 card->name);
866 c4_reset(card);
867 return retval;
868 }
869
870 save_flags(flags);
871 cli();
872
873 card->csr = 0;
874 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
875 c4outmeml(card->mbase+MBOX_DOWN_LEN, 0);
876 c4outmeml(card->mbase+DOORBELL, DBELL_INIT);
877 mdelay(1);
878 c4outmeml(card->mbase+DOORBELL,
879 DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
880
881 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08);
882
883 card->dma->recvlen = 0;
884 c4outmeml(card->mbase+MBOX_UP_ADDR, virt_to_phys(card->dma->recvbuf));
885 c4outmeml(card->mbase+MBOX_UP_LEN, sizeof(card->dma->recvbuf));
886 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
887 restore_flags(flags);
888
889 if (data->configuration.len > 0 && data->configuration.data) {
890 retval = c4_send_config(card, &data->configuration);
891 if (retval) {
892 printk(KERN_ERR "%s: failed to set config!!\n",
893 card->name);
894 c4_reset(card);
895 return retval;
896 }
897 }
898
899 c4_send_init(card);
900
901 return 0;
902 }
903
904
905 void c4_reset_ctr(struct capi_ctr *ctrl)
906 {
907 avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
908 avmctrl_info *cinfo;
909 int i;
910
911 c4_reset(card);
912
913 for (i=0; i < 4; i++) {
914 cinfo = &card->ctrlinfo[i];
915 memset(cinfo->version, 0, sizeof(cinfo->version));
916 if (cinfo->capi_ctrl)
917 cinfo->capi_ctrl->reseted(cinfo->capi_ctrl);
918 }
919 card->nlogcontr = 0;
920 }
921
922 static void c4_remove_ctr(struct capi_ctr *ctrl)
923 {
924 avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
925 avmctrl_info *cinfo;
926 int i;
927
928 c4_reset(card);
929
930 for (i=0; i < 4; i++) {
931 cinfo = &card->ctrlinfo[i];
932 if (cinfo->capi_ctrl) {
933 di->detach_ctr(cinfo->capi_ctrl);
934 cinfo->capi_ctrl = NULL;
935 }
936 }
937
938 free_irq(card->irq, card);
939 iounmap(card->mbase);
940 release_region(card->port, AVMB1_PORTLEN);
941 ctrl->driverdata = 0;
942 kfree(card->ctrlinfo);
943 kfree(card->dma);
944 kfree(card);
945
946 MOD_DEC_USE_COUNT;
947 }
948
949 /* ------------------------------------------------------------- */
950
951
952 void c4_register_appl(struct capi_ctr *ctrl,
953 __u16 appl,
954 capi_register_params *rp)
955 {
956 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
957 avmcard *card = cinfo->card;
958 struct sk_buff *skb;
959 int want = rp->level3cnt;
960 int nconn;
961 void *p;
962
963 if (ctrl->cnr == card->cardnr) {
964
965 if (want > 0) nconn = want;
966 else nconn = ctrl->profile.nbchannel * 4 * -want;
967 if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
968
969 skb = alloc_skb(23, GFP_ATOMIC);
970 if (!skb) {
971 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
972 card->name);
973 return;
974 }
975 p = skb->data;
976 _put_byte(&p, 0);
977 _put_byte(&p, 0);
978 _put_byte(&p, SEND_REGISTER);
979 _put_word(&p, appl);
980 _put_word(&p, 1024 * (nconn+1));
981 _put_word(&p, nconn);
982 _put_word(&p, rp->datablkcnt);
983 _put_word(&p, rp->datablklen);
984 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
985
986 skb_queue_tail(&card->dma->send_queue, skb);
987 c4_dispatch_tx(card);
988 }
989
990 ctrl->appl_registered(ctrl, appl);
991 }
992
993 /* ------------------------------------------------------------- */
994
995 void c4_release_appl(struct capi_ctr *ctrl, __u16 appl)
996 {
997 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
998 avmcard *card = cinfo->card;
999 struct sk_buff *skb;
1000 void *p;
1001
1002 if (ctrl->cnr == card->cardnr) {
1003 skb = alloc_skb(7, GFP_ATOMIC);
1004 if (!skb) {
1005 printk(KERN_CRIT "%s: no memory, lost release appl.\n",
1006 card->name);
1007 return;
1008 }
1009 p = skb->data;
1010 _put_byte(&p, 0);
1011 _put_byte(&p, 0);
1012 _put_byte(&p, SEND_RELEASE);
1013 _put_word(&p, appl);
1014
1015 skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
1016 skb_queue_tail(&card->dma->send_queue, skb);
1017 c4_dispatch_tx(card);
1018 }
1019 }
1020
1021 /* ------------------------------------------------------------- */
1022
1023
1024 static void c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
1025 {
1026 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1027 avmcard *card = cinfo->card;
1028 skb_queue_tail(&card->dma->send_queue, skb);
1029 c4_dispatch_tx(card);
1030 }
1031
1032 /* ------------------------------------------------------------- */
1033
1034 static char *c4_procinfo(struct capi_ctr *ctrl)
1035 {
1036 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1037
1038 if (!cinfo)
1039 return "";
1040 sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
1041 cinfo->cardname[0] ? cinfo->cardname : "-",
1042 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
1043 cinfo->card ? cinfo->card->port : 0x0,
1044 cinfo->card ? cinfo->card->irq : 0,
1045 cinfo->card ? cinfo->card->membase : 0
1046 );
1047 return cinfo->infobuf;
1048 }
1049
1050 static int c4_read_proc(char *page, char **start, off_t off,
1051 int count, int *eof, struct capi_ctr *ctrl)
1052 {
1053 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1054 avmcard *card = cinfo->card;
1055 __u8 flag;
1056 int len = 0;
1057 char *s;
1058
1059 len += sprintf(page+len, "%-16s %s\n", "name", card->name);
1060 len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
1061 len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
1062 len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
1063 switch (card->cardtype) {
1064 case avm_b1isa: s = "B1 ISA"; break;
1065 case avm_b1pci: s = "B1 PCI"; break;
1066 case avm_b1pcmcia: s = "B1 PCMCIA"; break;
1067 case avm_m1: s = "M1"; break;
1068 case avm_m2: s = "M2"; break;
1069 case avm_t1isa: s = "T1 ISA (HEMA)"; break;
1070 case avm_t1pci: s = "T1 PCI"; break;
1071 case avm_c4: s = "C4"; break;
1072 case avm_c2: s = "C2"; break;
1073 default: s = "???"; break;
1074 }
1075 len += sprintf(page+len, "%-16s %s\n", "type", s);
1076 if ((s = cinfo->version[VER_DRIVER]) != 0)
1077 len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
1078 if ((s = cinfo->version[VER_CARDTYPE]) != 0)
1079 len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
1080 if ((s = cinfo->version[VER_SERIAL]) != 0)
1081 len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
1082
1083 if (card->cardtype != avm_m1) {
1084 flag = ((__u8 *)(ctrl->profile.manu))[3];
1085 if (flag)
1086 len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
1087 "protocol",
1088 (flag & 0x01) ? " DSS1" : "",
1089 (flag & 0x02) ? " CT1" : "",
1090 (flag & 0x04) ? " VN3" : "",
1091 (flag & 0x08) ? " NI1" : "",
1092 (flag & 0x10) ? " AUSTEL" : "",
1093 (flag & 0x20) ? " ESS" : "",
1094 (flag & 0x40) ? " 1TR6" : ""
1095 );
1096 }
1097 if (card->cardtype != avm_m1) {
1098 flag = ((__u8 *)(ctrl->profile.manu))[5];
1099 if (flag)
1100 len += sprintf(page+len, "%-16s%s%s%s%s\n",
1101 "linetype",
1102 (flag & 0x01) ? " point to point" : "",
1103 (flag & 0x02) ? " point to multipoint" : "",
1104 (flag & 0x08) ? " leased line without D-channel" : "",
1105 (flag & 0x04) ? " leased line with D-channel" : ""
1106 );
1107 }
1108 len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
1109
1110 if (off+count >= len)
1111 *eof = 1;
1112 if (len < off)
1113 return 0;
1114 *start = page + off;
1115 return ((count < len-off) ? count : len-off);
1116 }
1117
1118 /* ------------------------------------------------------------- */
1119
1120 static int c4_add_card(struct capi_driver *driver,
1121 struct capicardparams *p,
1122 int nr)
1123 {
1124 avmctrl_info *cinfo;
1125 avmcard *card;
1126 int retval;
1127 int i;
1128
1129 MOD_INC_USE_COUNT;
1130
1131 card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
1132
1133 if (!card) {
1134 printk(KERN_WARNING "%s: no memory.\n", driver->name);
1135 MOD_DEC_USE_COUNT;
1136 return -ENOMEM;
1137 }
1138 memset(card, 0, sizeof(avmcard));
1139 card->dma = (avmcard_dmainfo *) kmalloc(sizeof(avmcard_dmainfo), GFP_ATOMIC);
1140 if (!card->dma) {
1141 printk(KERN_WARNING "%s: no memory.\n", driver->name);
1142 kfree(card);
1143 MOD_DEC_USE_COUNT;
1144 return -ENOMEM;
1145 }
1146 memset(card->dma, 0, sizeof(avmcard_dmainfo));
1147 cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info)*4, GFP_ATOMIC);
1148 if (!cinfo) {
1149 printk(KERN_WARNING "%s: no memory.\n", driver->name);
1150 kfree(card->dma);
1151 kfree(card);
1152 MOD_DEC_USE_COUNT;
1153 return -ENOMEM;
1154 }
1155 memset(cinfo, 0, sizeof(avmctrl_info)*4);
1156 card->ctrlinfo = cinfo;
1157 for (i=0; i < 4; i++) {
1158 cinfo = &card->ctrlinfo[i];
1159 cinfo->card = card;
1160 }
1161 sprintf(card->name, "%s-%x", driver->name, p->port);
1162 card->port = p->port;
1163 card->irq = p->irq;
1164 card->membase = p->membase;
1165 card->cardtype = nr == 4 ? avm_c4 : avm_c2;
1166
1167 if (check_region(card->port, AVMB1_PORTLEN)) {
1168 printk(KERN_WARNING
1169 "%s: ports 0x%03x-0x%03x in use.\n",
1170 driver->name, card->port, card->port + AVMB1_PORTLEN);
1171 kfree(card->ctrlinfo);
1172 kfree(card->dma);
1173 kfree(card);
1174 MOD_DEC_USE_COUNT;
1175 return -EBUSY;
1176 }
1177
1178 card->mbase = ioremap_nocache(card->membase, 128);
1179 if (card->mbase == 0) {
1180 printk(KERN_NOTICE "%s: can't remap memory at 0x%lx\n",
1181 driver->name, card->membase);
1182 kfree(card->ctrlinfo);
1183 kfree(card->dma);
1184 kfree(card);
1185 MOD_DEC_USE_COUNT;
1186 return -EIO;
1187 }
1188
1189 if ((retval = c4_detect(card)) != 0) {
1190 printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n",
1191 driver->name, card->port, retval);
1192 iounmap(card->mbase);
1193 kfree(card->ctrlinfo);
1194 kfree(card->dma);
1195 kfree(card);
1196 MOD_DEC_USE_COUNT;
1197 return -EIO;
1198 }
1199 c4_reset(card);
1200
1201 request_region(p->port, AVMB1_PORTLEN, card->name);
1202
1203 retval = request_irq(card->irq, c4_interrupt, SA_SHIRQ, card->name, card);
1204 if (retval) {
1205 printk(KERN_ERR "%s: unable to get IRQ %d.\n",
1206 driver->name, card->irq);
1207 iounmap(card->mbase);
1208 release_region(card->port, AVMB1_PORTLEN);
1209 kfree(card->ctrlinfo);
1210 kfree(card->dma);
1211 kfree(card);
1212 MOD_DEC_USE_COUNT;
1213 return -EBUSY;
1214 }
1215
1216 for (i=0; i < nr ; i++) {
1217 cinfo = &card->ctrlinfo[i];
1218 cinfo->card = card;
1219 cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
1220 if (!cinfo->capi_ctrl) {
1221 printk(KERN_ERR "%s: attach controller failed (%d).\n",
1222 driver->name, i);
1223 for (i--; i >= 0; i--) {
1224 cinfo = &card->ctrlinfo[i];
1225 di->detach_ctr(cinfo->capi_ctrl);
1226 }
1227 iounmap(card->mbase);
1228 free_irq(card->irq, card);
1229 release_region(card->port, AVMB1_PORTLEN);
1230 kfree(card->dma);
1231 kfree(card->ctrlinfo);
1232 kfree(card);
1233 MOD_DEC_USE_COUNT;
1234 return -EBUSY;
1235 }
1236 if (i == 0)
1237 card->cardnr = cinfo->capi_ctrl->cnr;
1238 }
1239
1240 skb_queue_head_init(&card->dma->send_queue);
1241
1242 printk(KERN_INFO
1243 "%s: AVM C%d at i/o %#x, irq %d, mem %#lx\n",
1244 driver->name, nr, card->port, card->irq, card->membase);
1245
1246 return 0;
1247 }
1248
1249 /* ------------------------------------------------------------- */
1250
1251 static struct capi_driver c2_driver = {
1252 name: "c2",
1253 revision: "0.0",
1254 load_firmware: c4_load_firmware,
1255 reset_ctr: c4_reset_ctr,
1256 remove_ctr: c4_remove_ctr,
1257 register_appl: c4_register_appl,
1258 release_appl: c4_release_appl,
1259 send_message: c4_send_message,
1260
1261 procinfo: c4_procinfo,
1262 ctr_read_proc: c4_read_proc,
1263 driver_read_proc: 0, /* use standard driver_read_proc */
1264
1265 add_card: 0, /* no add_card function */
1266 };
1267
1268 static struct capi_driver c4_driver = {
1269 name: "c4",
1270 revision: "0.0",
1271 load_firmware: c4_load_firmware,
1272 reset_ctr: c4_reset_ctr,
1273 remove_ctr: c4_remove_ctr,
1274 register_appl: c4_register_appl,
1275 release_appl: c4_release_appl,
1276 send_message: c4_send_message,
1277
1278 procinfo: c4_procinfo,
1279 ctr_read_proc: c4_read_proc,
1280 driver_read_proc: 0, /* use standard driver_read_proc */
1281
1282 add_card: 0, /* no add_card function */
1283 };
1284
1285 static int ncards = 0;
1286
1287 static int c4_attach_driver (struct capi_driver * driver)
1288 {
1289 char *p;
1290 if ((p = strchr(revision, ':')) != 0 && p[1]) {
1291 strncpy(driver->revision, p + 2, sizeof(driver->revision));
1292 driver->revision[sizeof(driver->revision)-1] = 0;
1293 if ((p = strchr(driver->revision, '$')) != 0 && p > driver->revision)
1294 *(p-1) = 0;
1295 }
1296
1297 printk(KERN_INFO "%s: revision %s\n", driver->name, driver->revision);
1298
1299 di = attach_capi_driver(driver);
1300 if (!di) {
1301 printk(KERN_ERR "%s: failed to attach capi_driver\n",
1302 driver->name);
1303 MOD_DEC_USE_COUNT;
1304 return -ENODEV;
1305 }
1306 return 0;
1307 }
1308
1309 static int __init search_cards(struct capi_driver * driver,
1310 int pci_id, int nr)
1311 {
1312 struct pci_dev * dev = NULL;
1313 int retval = 0;
1314
1315 while ((dev = pci_find_subsys(
1316 PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285,
1317 PCI_VENDOR_ID_AVM, pci_id, dev))) {
1318 struct capicardparams param;
1319
1320 if (pci_enable_device(dev) < 0) {
1321 printk(KERN_ERR "%s: failed to enable AVM-C%d\n",
1322 driver->name, nr);
1323 continue;
1324 }
1325 pci_set_master(dev);
1326
1327 param.port = pci_resource_start(dev, 1);
1328 param.irq = dev->irq;
1329 param.membase = pci_resource_start(dev, 0);
1330
1331 printk(KERN_INFO
1332 "%s: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#x\n",
1333 driver->name, nr, param.port, param.irq, param.membase);
1334 retval = c4_add_card(driver, ¶m, nr);
1335 if (retval != 0) {
1336 printk(KERN_ERR
1337 "%s: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n",
1338 driver->name, nr, param.port, param.irq, param.membase);
1339 continue;
1340 }
1341 ncards++;
1342 }
1343 return retval;
1344 }
1345
1346 static int __init c4_init(void)
1347 {
1348 int retval;
1349
1350 MOD_INC_USE_COUNT;
1351
1352 retval = c4_attach_driver (&c4_driver);
1353 if (retval) {
1354 MOD_DEC_USE_COUNT;
1355 return retval;
1356 }
1357
1358 retval = c4_attach_driver (&c2_driver);
1359 if (retval) {
1360 MOD_DEC_USE_COUNT;
1361 return retval;
1362 }
1363
1364 retval = search_cards(&c4_driver, PCI_DEVICE_ID_AVM_C4, 4);
1365 if (retval && ncards == 0) {
1366 detach_capi_driver(&c2_driver);
1367 detach_capi_driver(&c4_driver);
1368 MOD_DEC_USE_COUNT;
1369 return retval;
1370 }
1371 retval = search_cards(&c2_driver, PCI_DEVICE_ID_AVM_C2, 2);
1372 if (retval && ncards == 0) {
1373 detach_capi_driver(&c2_driver);
1374 detach_capi_driver(&c4_driver);
1375 MOD_DEC_USE_COUNT;
1376 return retval;
1377 }
1378
1379 if (ncards) {
1380 printk(KERN_INFO "%s: %d C4/C2 card(s) detected\n",
1381 c4_driver.name, ncards);
1382 MOD_DEC_USE_COUNT;
1383 return 0;
1384 }
1385 printk(KERN_ERR "%s: NO C4/C2 card detected\n", c4_driver.name);
1386 detach_capi_driver(&c4_driver);
1387 detach_capi_driver(&c2_driver);
1388 MOD_DEC_USE_COUNT;
1389 return -ENODEV;
1390 }
1391
1392 static void __exit c4_exit(void)
1393 {
1394 detach_capi_driver(&c2_driver);
1395 detach_capi_driver(&c4_driver);
1396 }
1397
1398 module_init(c4_init);
1399 module_exit(c4_exit);
1400