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RT-AC66 3.0.0.4.374.130 core
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / isdn / hardware / avm / c4.c
blob8710cf6214d9fc9487841547a4139625948d51c1
1 /* $Id: c4.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
2 *
3 * Module for AVM C4 & C2 card.
4 *
5 * Copyright 1999 by Carsten Paeth <calle@calle.de>
6 *
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
9 *
10 */
11
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/skbuff.h>
15 #include <linux/delay.h>
16 #include <linux/mm.h>
17 #include <linux/interrupt.h>
18 #include <linux/ioport.h>
19 #include <linux/pci.h>
20 #include <linux/capi.h>
21 #include <linux/kernelcapi.h>
22 #include <linux/init.h>
23 #include <asm/io.h>
24 #include <asm/uaccess.h>
25 #include <linux/netdevice.h>
26 #include <linux/isdn/capicmd.h>
27 #include <linux/isdn/capiutil.h>
28 #include <linux/isdn/capilli.h>
29 #include "avmcard.h"
30
31 #undef AVM_C4_DEBUG
32 #undef AVM_C4_POLLDEBUG
33
34 /* ------------------------------------------------------------- */
35
36 static char *revision = "$Revision: 1.1.2.2 $";
37
38 /* ------------------------------------------------------------- */
39
40 static int suppress_pollack;
41
42 static struct pci_device_id c4_pci_tbl[] = {
43 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, 0, 0, (unsigned long)4 },
44 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2, 0, 0, (unsigned long)2 },
45 { } /* Terminating entry */
46 };
47
48 MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
49 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM C2/C4 cards");
50 MODULE_AUTHOR("Carsten Paeth");
51 MODULE_LICENSE("GPL");
52 module_param(suppress_pollack, bool, 0);
53
54 /* ------------------------------------------------------------- */
55
56 static void c4_dispatch_tx(avmcard *card);
57
58 /* ------------------------------------------------------------- */
59
60 #define DC21285_DRAM_A0MR 0x40000000
61 #define DC21285_DRAM_A1MR 0x40004000
62 #define DC21285_DRAM_A2MR 0x40008000
63 #define DC21285_DRAM_A3MR 0x4000C000
64
65 #define CAS_OFFSET 0x88
66
67 #define DC21285_ARMCSR_BASE 0x42000000
68
69 #define PCI_OUT_INT_STATUS 0x30
70 #define PCI_OUT_INT_MASK 0x34
71 #define MAILBOX_0 0x50
72 #define MAILBOX_1 0x54
73 #define MAILBOX_2 0x58
74 #define MAILBOX_3 0x5C
75 #define DOORBELL 0x60
76 #define DOORBELL_SETUP 0x64
77
78 #define CHAN_1_CONTROL 0x90
79 #define CHAN_2_CONTROL 0xB0
80 #define DRAM_TIMING 0x10C
81 #define DRAM_ADDR_SIZE_0 0x110
82 #define DRAM_ADDR_SIZE_1 0x114
83 #define DRAM_ADDR_SIZE_2 0x118
84 #define DRAM_ADDR_SIZE_3 0x11C
85 #define SA_CONTROL 0x13C
86 #define XBUS_CYCLE 0x148
87 #define XBUS_STROBE 0x14C
88 #define DBELL_PCI_MASK 0x150
89 #define DBELL_SA_MASK 0x154
90
91 #define SDRAM_SIZE 0x1000000
92
93 /* ------------------------------------------------------------- */
94
95 #define MBOX_PEEK_POKE MAILBOX_0
96
97 #define DBELL_ADDR 0x01
98 #define DBELL_DATA 0x02
99 #define DBELL_RNWR 0x40
100 #define DBELL_INIT 0x80
101
102 /* ------------------------------------------------------------- */
103
104 #define MBOX_UP_ADDR MAILBOX_0
105 #define MBOX_UP_LEN MAILBOX_1
106 #define MBOX_DOWN_ADDR MAILBOX_2
107 #define MBOX_DOWN_LEN MAILBOX_3
108
109 #define DBELL_UP_HOST 0x00000100
110 #define DBELL_UP_ARM 0x00000200
111 #define DBELL_DOWN_HOST 0x00000400
112 #define DBELL_DOWN_ARM 0x00000800
113 #define DBELL_RESET_HOST 0x40000000
114 #define DBELL_RESET_ARM 0x80000000
115
116 /* ------------------------------------------------------------- */
117
118 #define DRAM_TIMING_DEF 0x001A01A5
119 #define DRAM_AD_SZ_DEF0 0x00000045
120 #define DRAM_AD_SZ_NULL 0x00000000
121
122 #define SA_CTL_ALLRIGHT 0x64AA0271
123
124 #define INIT_XBUS_CYCLE 0x100016DB
125 #define INIT_XBUS_STROBE 0xF1F1F1F1
126
127 /* ------------------------------------------------------------- */
128
129 #define RESET_TIMEOUT (15*HZ) /* 15 sec */
130 #define PEEK_POKE_TIMEOUT (HZ/10) /* 0.1 sec */
131
132 /* ------------------------------------------------------------- */
133
134 #define c4outmeml(addr, value) writel(value, addr)
135 #define c4inmeml(addr) readl(addr)
136 #define c4outmemw(addr, value) writew(value, addr)
137 #define c4inmemw(addr) readw(addr)
138 #define c4outmemb(addr, value) writeb(value, addr)
139 #define c4inmemb(addr) readb(addr)
140
141 /* ------------------------------------------------------------- */
142
143 static inline int wait_for_doorbell(avmcard *card, unsigned long t)
144 {
145 unsigned long stop;
146
147 stop = jiffies + t;
148 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
149 if (!time_before(jiffies, stop))
150 return -1;
151 mb();
152 }
153 return 0;
154 }
155
156 static int c4_poke(avmcard *card, unsigned long off, unsigned long value)
157 {
158
159 if (wait_for_doorbell(card, HZ/10) < 0)
160 return -1;
161
162 c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
163 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
164
165 if (wait_for_doorbell(card, HZ/10) < 0)
166 return -1;
167
168 c4outmeml(card->mbase+MBOX_PEEK_POKE, value);
169 c4outmeml(card->mbase+DOORBELL, DBELL_DATA | DBELL_ADDR);
170
171 return 0;
172 }
173
174 static int c4_peek(avmcard *card, unsigned long off, unsigned long *valuep)
175 {
176 if (wait_for_doorbell(card, HZ/10) < 0)
177 return -1;
178
179 c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
180 c4outmeml(card->mbase+DOORBELL, DBELL_RNWR | DBELL_ADDR);
181
182 if (wait_for_doorbell(card, HZ/10) < 0)
183 return -1;
184
185 *valuep = c4inmeml(card->mbase+MBOX_PEEK_POKE);
186
187 return 0;
188 }
189
190 /* ------------------------------------------------------------- */
191
192 static int c4_load_t4file(avmcard *card, capiloaddatapart * t4file)
193 {
194 u32 val;
195 unsigned char *dp;
196 u_int left;
197 u32 loadoff = 0;
198
199 dp = t4file->data;
200 left = t4file->len;
201 while (left >= sizeof(u32)) {
202 if (t4file->user) {
203 if (copy_from_user(&val, dp, sizeof(val)))
204 return -EFAULT;
205 } else {
206 memcpy(&val, dp, sizeof(val));
207 }
208 if (c4_poke(card, loadoff, val)) {
209 printk(KERN_ERR "%s: corrupted firmware file ?\n",
210 card->name);
211 return -EIO;
212 }
213 left -= sizeof(u32);
214 dp += sizeof(u32);
215 loadoff += sizeof(u32);
216 }
217 if (left) {
218 val = 0;
219 if (t4file->user) {
220 if (copy_from_user(&val, dp, left))
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 mb();
305 }
306
307 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
308 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
309 }
310
311 /* ------------------------------------------------------------- */
312
313 static int c4_detect(avmcard *card)
314 {
315 unsigned long stop, dummy;
316
317 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
318 if (c4inmeml(card->mbase+PCI_OUT_INT_MASK) != 0x0c)
319 return 1;
320
321 c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
322
323 stop = jiffies + HZ*10;
324 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
325 if (!time_before(jiffies, stop))
326 return 2;
327 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
328 mb();
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 c4outmeml(card->mbase+MAILBOX_0, 0x55aa55aa);
335 if (c4inmeml(card->mbase+MAILBOX_0) != 0x55aa55aa) return 3;
336
337 c4outmeml(card->mbase+MAILBOX_0, 0xaa55aa55);
338 if (c4inmeml(card->mbase+MAILBOX_0) != 0xaa55aa55) return 4;
339
340 if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_SA_MASK, 0)) return 5;
341 if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_PCI_MASK, 0)) return 6;
342 if (c4_poke(card, DC21285_ARMCSR_BASE+SA_CONTROL, SA_CTL_ALLRIGHT))
343 return 7;
344 if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_CYCLE, INIT_XBUS_CYCLE))
345 return 8;
346 if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_STROBE, INIT_XBUS_STROBE))
347 return 8;
348 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, 0)) return 9;
349
350 mdelay(1);
351
352 if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10;
353 if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11;
354 if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12;
355 if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13;
356
357 if (c4_poke(card, DC21285_DRAM_A0MR+CAS_OFFSET, 0)) return 14;
358 if (c4_poke(card, DC21285_DRAM_A1MR+CAS_OFFSET, 0)) return 15;
359 if (c4_poke(card, DC21285_DRAM_A2MR+CAS_OFFSET, 0)) return 16;
360 if (c4_poke(card, DC21285_DRAM_A3MR+CAS_OFFSET, 0)) return 17;
361
362 mdelay(1);
363
364 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, DRAM_TIMING_DEF))
365 return 18;
366
367 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_0,DRAM_AD_SZ_DEF0))
368 return 19;
369 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_1,DRAM_AD_SZ_NULL))
370 return 20;
371 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_2,DRAM_AD_SZ_NULL))
372 return 21;
373 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_3,DRAM_AD_SZ_NULL))
374 return 22;
375
376 /* Transputer test */
377
378 if ( c4_poke(card, 0x000000, 0x11111111)
379 || c4_poke(card, 0x400000, 0x22222222)
380 || c4_poke(card, 0x800000, 0x33333333)
381 || c4_poke(card, 0xC00000, 0x44444444))
382 return 23;
383
384 if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111
385 || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222
386 || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333
387 || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444)
388 return 24;
389
390 if ( c4_poke(card, 0x000000, 0x55555555)
391 || c4_poke(card, 0x400000, 0x66666666)
392 || c4_poke(card, 0x800000, 0x77777777)
393 || c4_poke(card, 0xC00000, 0x88888888))
394 return 25;
395
396 if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555
397 || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666
398 || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777
399 || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888)
400 return 26;
401
402 return 0;
403 }
404
405 /* ------------------------------------------------------------- */
406
407 static void c4_dispatch_tx(avmcard *card)
408 {
409 avmcard_dmainfo *dma = card->dma;
410 struct sk_buff *skb;
411 u8 cmd, subcmd;
412 u16 len;
413 u32 txlen;
414 void *p;
415
416
417 if (card->csr & DBELL_DOWN_ARM) { /* tx busy */
418 return;
419 }
420
421 skb = skb_dequeue(&dma->send_queue);
422 if (!skb) {
423 #ifdef AVM_C4_DEBUG
424 printk(KERN_DEBUG "%s: tx underrun\n", card->name);
425 #endif
426 return;
427 }
428
429 len = CAPIMSG_LEN(skb->data);
430
431 if (len) {
432 cmd = CAPIMSG_COMMAND(skb->data);
433 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
434
435 p = dma->sendbuf.dmabuf;
436
437 if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
438 u16 dlen = CAPIMSG_DATALEN(skb->data);
439 _put_byte(&p, SEND_DATA_B3_REQ);
440 _put_slice(&p, skb->data, len);
441 _put_slice(&p, skb->data + len, dlen);
442 } else {
443 _put_byte(&p, SEND_MESSAGE);
444 _put_slice(&p, skb->data, len);
445 }
446 txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf;
447 #ifdef AVM_C4_DEBUG
448 printk(KERN_DEBUG "%s: tx put msg len=%d\n", card->name, txlen);
449 #endif
450 } else {
451 txlen = skb->len-2;
452 #ifdef AVM_C4_POLLDEBUG
453 if (skb->data[2] == SEND_POLLACK)
454 printk(KERN_INFO "%s: ack to c4\n", card->name);
455 #endif
456 #ifdef AVM_C4_DEBUG
457 printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
458 card->name, skb->data[2], txlen);
459 #endif
460 skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf,
461 skb->len - 2);
462 }
463 txlen = (txlen + 3) & ~3;
464
465 c4outmeml(card->mbase+MBOX_DOWN_ADDR, dma->sendbuf.dmaaddr);
466 c4outmeml(card->mbase+MBOX_DOWN_LEN, txlen);
467
468 card->csr |= DBELL_DOWN_ARM;
469
470 c4outmeml(card->mbase+DOORBELL, DBELL_DOWN_ARM);
471
472 dev_kfree_skb_any(skb);
473 }
474
475 /* ------------------------------------------------------------- */
476
477 static void queue_pollack(avmcard *card)
478 {
479 struct sk_buff *skb;
480 void *p;
481
482 skb = alloc_skb(3, GFP_ATOMIC);
483 if (!skb) {
484 printk(KERN_CRIT "%s: no memory, lost poll ack\n",
485 card->name);
486 return;
487 }
488 p = skb->data;
489 _put_byte(&p, 0);
490 _put_byte(&p, 0);
491 _put_byte(&p, SEND_POLLACK);
492 skb_put(skb, (u8 *)p - (u8 *)skb->data);
493
494 skb_queue_tail(&card->dma->send_queue, skb);
495 c4_dispatch_tx(card);
496 }
497
498 /* ------------------------------------------------------------- */
499
500 static void c4_handle_rx(avmcard *card)
501 {
502 avmcard_dmainfo *dma = card->dma;
503 struct capi_ctr *ctrl;
504 avmctrl_info *cinfo;
505 struct sk_buff *skb;
506 void *p = dma->recvbuf.dmabuf;
507 u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
508 u8 b1cmd = _get_byte(&p);
509 u32 cidx;
510
511
512 #ifdef AVM_C4_DEBUG
513 printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name,
514 b1cmd, (unsigned long)dma->recvlen);
515 #endif
516
517 switch (b1cmd) {
518 case RECEIVE_DATA_B3_IND:
519
520 ApplId = (unsigned) _get_word(&p);
521 MsgLen = _get_slice(&p, card->msgbuf);
522 DataB3Len = _get_slice(&p, card->databuf);
523 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
524 if (cidx >= card->nlogcontr) cidx = 0;
525 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
526
527 if (MsgLen < 30) { /* not CAPI 64Bit */
528 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
529 MsgLen = 30;
530 CAPIMSG_SETLEN(card->msgbuf, 30);
531 }
532 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
533 printk(KERN_ERR "%s: incoming packet dropped\n",
534 card->name);
535 } else {
536 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
537 memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
538 capi_ctr_handle_message(ctrl, ApplId, skb);
539 }
540 break;
541
542 case RECEIVE_MESSAGE:
543
544 ApplId = (unsigned) _get_word(&p);
545 MsgLen = _get_slice(&p, card->msgbuf);
546 cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
547 if (cidx >= card->nlogcontr) cidx = 0;
548 cinfo = &card->ctrlinfo[cidx];
549 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
550
551 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
552 printk(KERN_ERR "%s: incoming packet dropped\n",
553 card->name);
554 } else {
555 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
556 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF)
557 capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
558 CAPIMSG_NCCI(skb->data),
559 CAPIMSG_MSGID(skb->data));
560
561 capi_ctr_handle_message(ctrl, ApplId, skb);
562 }
563 break;
564
565 case RECEIVE_NEW_NCCI:
566
567 ApplId = _get_word(&p);
568 NCCI = _get_word(&p);
569 WindowSize = _get_word(&p);
570 cidx = (NCCI&0x7f) - card->cardnr;
571 if (cidx >= card->nlogcontr) cidx = 0;
572
573 capilib_new_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI, WindowSize);
574
575 break;
576
577 case RECEIVE_FREE_NCCI:
578
579 ApplId = _get_word(&p);
580 NCCI = _get_word(&p);
581
582 if (NCCI != 0xffffffff) {
583 cidx = (NCCI&0x7f) - card->cardnr;
584 if (cidx >= card->nlogcontr) cidx = 0;
585 capilib_free_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI);
586 }
587 break;
588
589 case RECEIVE_START:
590 #ifdef AVM_C4_POLLDEBUG
591 printk(KERN_INFO "%s: poll from c4\n", card->name);
592 #endif
593 if (!suppress_pollack)
594 queue_pollack(card);
595 for (cidx=0; cidx < card->nr_controllers; cidx++) {
596 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
597 capi_ctr_resume_output(ctrl);
598 }
599 break;
600
601 case RECEIVE_STOP:
602 for (cidx=0; cidx < card->nr_controllers; cidx++) {
603 ctrl = &card->ctrlinfo[cidx].capi_ctrl;
604 capi_ctr_suspend_output(ctrl);
605 }
606 break;
607
608 case RECEIVE_INIT:
609
610 cidx = card->nlogcontr;
611 if (cidx >= card->nr_controllers) {
612 printk(KERN_ERR "%s: card with %d controllers ??\n",
613 card->name, cidx+1);
614 break;
615 }
616 card->nlogcontr++;
617 cinfo = &card->ctrlinfo[cidx];
618 ctrl = &cinfo->capi_ctrl;
619 cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
620 b1_parse_version(cinfo);
621 printk(KERN_INFO "%s: %s-card (%s) now active\n",
622 card->name,
623 cinfo->version[VER_CARDTYPE],
624 cinfo->version[VER_DRIVER]);
625 capi_ctr_ready(&cinfo->capi_ctrl);
626 break;
627
628 case RECEIVE_TASK_READY:
629 ApplId = (unsigned) _get_word(&p);
630 MsgLen = _get_slice(&p, card->msgbuf);
631 card->msgbuf[MsgLen] = 0;
632 while ( MsgLen > 0
633 && ( card->msgbuf[MsgLen-1] == '\n'
634 || card->msgbuf[MsgLen-1] == '\r')) {
635 card->msgbuf[MsgLen-1] = 0;
636 MsgLen--;
637 }
638 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
639 card->name, ApplId, card->msgbuf);
640 break;
641
642 case RECEIVE_DEBUGMSG:
643 MsgLen = _get_slice(&p, card->msgbuf);
644 card->msgbuf[MsgLen] = 0;
645 while ( MsgLen > 0
646 && ( card->msgbuf[MsgLen-1] == '\n'
647 || card->msgbuf[MsgLen-1] == '\r')) {
648 card->msgbuf[MsgLen-1] = 0;
649 MsgLen--;
650 }
651 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
652 break;
653
654 default:
655 printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n",
656 card->name, b1cmd);
657 return;
658 }
659 }
660
661 /* ------------------------------------------------------------- */
662
663 static irqreturn_t c4_handle_interrupt(avmcard *card)
664 {
665 unsigned long flags;
666 u32 status;
667
668 spin_lock_irqsave(&card->lock, flags);
669 status = c4inmeml(card->mbase+DOORBELL);
670
671 if (status & DBELL_RESET_HOST) {
672 u_int i;
673 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
674 spin_unlock_irqrestore(&card->lock, flags);
675 if (card->nlogcontr == 0)
676 return IRQ_HANDLED;
677 printk(KERN_ERR "%s: unexpected reset\n", card->name);
678 for (i=0; i < card->nr_controllers; i++) {
679 avmctrl_info *cinfo = &card->ctrlinfo[i];
680 memset(cinfo->version, 0, sizeof(cinfo->version));
681 capilib_release(&cinfo->ncci_head);
682 capi_ctr_reseted(&cinfo->capi_ctrl);
683 }
684 card->nlogcontr = 0;
685 return IRQ_HANDLED;
686 }
687
688 status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
689 if (!status) {
690 spin_unlock_irqrestore(&card->lock, flags);
691 return IRQ_HANDLED;
692 }
693 c4outmeml(card->mbase+DOORBELL, status);
694
695 if ((status & DBELL_UP_HOST) != 0) {
696 card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN);
697 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
698 c4_handle_rx(card);
699 card->dma->recvlen = 0;
700 c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
701 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
702 }
703
704 if ((status & DBELL_DOWN_HOST) != 0) {
705 card->csr &= ~DBELL_DOWN_ARM;
706 c4_dispatch_tx(card);
707 } else if (card->csr & DBELL_DOWN_HOST) {
708 if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) {
709 card->csr &= ~DBELL_DOWN_ARM;
710 c4_dispatch_tx(card);
711 }
712 }
713 spin_unlock_irqrestore(&card->lock, flags);
714 return IRQ_HANDLED;
715 }
716
717 static irqreturn_t c4_interrupt(int interrupt, void *devptr)
718 {
719 avmcard *card = devptr;
720
721 return c4_handle_interrupt(card);
722 }
723
724 /* ------------------------------------------------------------- */
725
726 static void c4_send_init(avmcard *card)
727 {
728 struct sk_buff *skb;
729 void *p;
730 unsigned long flags;
731
732 skb = alloc_skb(15, GFP_ATOMIC);
733 if (!skb) {
734 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
735 card->name);
736 return;
737 }
738 p = skb->data;
739 _put_byte(&p, 0);
740 _put_byte(&p, 0);
741 _put_byte(&p, SEND_INIT);
742 _put_word(&p, CAPI_MAXAPPL);
743 _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
744 _put_word(&p, card->cardnr - 1);
745 skb_put(skb, (u8 *)p - (u8 *)skb->data);
746
747 skb_queue_tail(&card->dma->send_queue, skb);
748 spin_lock_irqsave(&card->lock, flags);
749 c4_dispatch_tx(card);
750 spin_unlock_irqrestore(&card->lock, flags);
751 }
752
753 static int queue_sendconfigword(avmcard *card, u32 val)
754 {
755 struct sk_buff *skb;
756 unsigned long flags;
757 void *p;
758
759 skb = alloc_skb(3+4, GFP_ATOMIC);
760 if (!skb) {
761 printk(KERN_CRIT "%s: no memory, send config\n",
762 card->name);
763 return -ENOMEM;
764 }
765 p = skb->data;
766 _put_byte(&p, 0);
767 _put_byte(&p, 0);
768 _put_byte(&p, SEND_CONFIG);
769 _put_word(&p, val);
770 skb_put(skb, (u8 *)p - (u8 *)skb->data);
771
772 skb_queue_tail(&card->dma->send_queue, skb);
773 spin_lock_irqsave(&card->lock, flags);
774 c4_dispatch_tx(card);
775 spin_unlock_irqrestore(&card->lock, flags);
776 return 0;
777 }
778
779 static int queue_sendconfig(avmcard *card, char cval[4])
780 {
781 struct sk_buff *skb;
782 unsigned long flags;
783 void *p;
784
785 skb = alloc_skb(3+4, GFP_ATOMIC);
786 if (!skb) {
787 printk(KERN_CRIT "%s: no memory, send config\n",
788 card->name);
789 return -ENOMEM;
790 }
791 p = skb->data;
792 _put_byte(&p, 0);
793 _put_byte(&p, 0);
794 _put_byte(&p, SEND_CONFIG);
795 _put_byte(&p, cval[0]);
796 _put_byte(&p, cval[1]);
797 _put_byte(&p, cval[2]);
798 _put_byte(&p, cval[3]);
799 skb_put(skb, (u8 *)p - (u8 *)skb->data);
800
801 skb_queue_tail(&card->dma->send_queue, skb);
802
803 spin_lock_irqsave(&card->lock, flags);
804 c4_dispatch_tx(card);
805 spin_unlock_irqrestore(&card->lock, flags);
806 return 0;
807 }
808
809 static int c4_send_config(avmcard *card, capiloaddatapart * config)
810 {
811 u8 val[4];
812 unsigned char *dp;
813 u_int left;
814 int retval;
815
816 if ((retval = queue_sendconfigword(card, 1)) != 0)
817 return retval;
818 if ((retval = queue_sendconfigword(card, config->len)) != 0)
819 return retval;
820
821 dp = config->data;
822 left = config->len;
823 while (left >= sizeof(u32)) {
824 if (config->user) {
825 if (copy_from_user(val, dp, sizeof(val)))
826 return -EFAULT;
827 } else {
828 memcpy(val, dp, sizeof(val));
829 }
830 if ((retval = queue_sendconfig(card, val)) != 0)
831 return retval;
832 left -= sizeof(val);
833 dp += sizeof(val);
834 }
835 if (left) {
836 memset(val, 0, sizeof(val));
837 if (config->user) {
838 if (copy_from_user(&val, dp, left))
839 return -EFAULT;
840 } else {
841 memcpy(&val, dp, left);
842 }
843 if ((retval = queue_sendconfig(card, val)) != 0)
844 return retval;
845 }
846
847 return 0;
848 }
849
850 static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
851 {
852 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
853 avmcard *card = cinfo->card;
854 int retval;
855
856 if ((retval = c4_load_t4file(card, &data->firmware))) {
857 printk(KERN_ERR "%s: failed to load t4file!!\n",
858 card->name);
859 c4_reset(card);
860 return retval;
861 }
862
863 card->csr = 0;
864 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
865 c4outmeml(card->mbase+MBOX_DOWN_LEN, 0);
866 c4outmeml(card->mbase+DOORBELL, DBELL_INIT);
867 mdelay(1);
868 c4outmeml(card->mbase+DOORBELL,
869 DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
870
871 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08);
872
873 card->dma->recvlen = 0;
874 c4outmeml(card->mbase+MBOX_UP_ADDR, card->dma->recvbuf.dmaaddr);
875 c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
876 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
877
878 if (data->configuration.len > 0 && data->configuration.data) {
879 retval = c4_send_config(card, &data->configuration);
880 if (retval) {
881 printk(KERN_ERR "%s: failed to set config!!\n",
882 card->name);
883 c4_reset(card);
884 return retval;
885 }
886 }
887
888 c4_send_init(card);
889
890 return 0;
891 }
892
893
894 static void c4_reset_ctr(struct capi_ctr *ctrl)
895 {
896 avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
897 avmctrl_info *cinfo;
898 u_int i;
899 unsigned long flags;
900
901 spin_lock_irqsave(&card->lock, flags);
902
903 c4_reset(card);
904
905 spin_unlock_irqrestore(&card->lock, flags);
906
907 for (i=0; i < card->nr_controllers; i++) {
908 cinfo = &card->ctrlinfo[i];
909 memset(cinfo->version, 0, sizeof(cinfo->version));
910 capi_ctr_reseted(&cinfo->capi_ctrl);
911 }
912 card->nlogcontr = 0;
913 }
914
915 static void c4_remove(struct pci_dev *pdev)
916 {
917 avmcard *card = pci_get_drvdata(pdev);
918 avmctrl_info *cinfo;
919 u_int i;
920
921 if (!card)
922 return;
923
924 c4_reset(card);
925
926 for (i=0; i < card->nr_controllers; i++) {
927 cinfo = &card->ctrlinfo[i];
928 detach_capi_ctr(&cinfo->capi_ctrl);
929 }
930
931 free_irq(card->irq, card);
932 iounmap(card->mbase);
933 release_region(card->port, AVMB1_PORTLEN);
934 avmcard_dma_free(card->dma);
935 pci_set_drvdata(pdev, NULL);
936 b1_free_card(card);
937 }
938
939 /* ------------------------------------------------------------- */
940
941
942 static void c4_register_appl(struct capi_ctr *ctrl,
943 u16 appl,
944 capi_register_params *rp)
945 {
946 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
947 avmcard *card = cinfo->card;
948 struct sk_buff *skb;
949 int want = rp->level3cnt;
950 unsigned long flags;
951 int nconn;
952 void *p;
953
954 if (ctrl->cnr == card->cardnr) {
955
956 if (want > 0) nconn = want;
957 else nconn = ctrl->profile.nbchannel * 4 * -want;
958 if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
959
960 skb = alloc_skb(23, GFP_ATOMIC);
961 if (!skb) {
962 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
963 card->name);
964 return;
965 }
966 p = skb->data;
967 _put_byte(&p, 0);
968 _put_byte(&p, 0);
969 _put_byte(&p, SEND_REGISTER);
970 _put_word(&p, appl);
971 _put_word(&p, 1024 * (nconn+1));
972 _put_word(&p, nconn);
973 _put_word(&p, rp->datablkcnt);
974 _put_word(&p, rp->datablklen);
975 skb_put(skb, (u8 *)p - (u8 *)skb->data);
976
977 skb_queue_tail(&card->dma->send_queue, skb);
978
979 spin_lock_irqsave(&card->lock, flags);
980 c4_dispatch_tx(card);
981 spin_unlock_irqrestore(&card->lock, flags);
982 }
983 }
984
985 /* ------------------------------------------------------------- */
986
987 static void c4_release_appl(struct capi_ctr *ctrl, u16 appl)
988 {
989 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
990 avmcard *card = cinfo->card;
991 unsigned long flags;
992 struct sk_buff *skb;
993 void *p;
994
995 spin_lock_irqsave(&card->lock, flags);
996 capilib_release_appl(&cinfo->ncci_head, appl);
997 spin_unlock_irqrestore(&card->lock, flags);
998
999 if (ctrl->cnr == card->cardnr) {
1000 skb = alloc_skb(7, GFP_ATOMIC);
1001 if (!skb) {
1002 printk(KERN_CRIT "%s: no memory, lost release appl.\n",
1003 card->name);
1004 return;
1005 }
1006 p = skb->data;
1007 _put_byte(&p, 0);
1008 _put_byte(&p, 0);
1009 _put_byte(&p, SEND_RELEASE);
1010 _put_word(&p, appl);
1011
1012 skb_put(skb, (u8 *)p - (u8 *)skb->data);
1013 skb_queue_tail(&card->dma->send_queue, skb);
1014 spin_lock_irqsave(&card->lock, flags);
1015 c4_dispatch_tx(card);
1016 spin_unlock_irqrestore(&card->lock, flags);
1017 }
1018 }
1019
1020 /* ------------------------------------------------------------- */
1021
1022
1023 static u16 c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
1024 {
1025 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1026 avmcard *card = cinfo->card;
1027 u16 retval = CAPI_NOERROR;
1028 unsigned long flags;
1029
1030 spin_lock_irqsave(&card->lock, flags);
1031 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
1032 retval = capilib_data_b3_req(&cinfo->ncci_head,
1033 CAPIMSG_APPID(skb->data),
1034 CAPIMSG_NCCI(skb->data),
1035 CAPIMSG_MSGID(skb->data));
1036 }
1037 if (retval == CAPI_NOERROR) {
1038 skb_queue_tail(&card->dma->send_queue, skb);
1039 c4_dispatch_tx(card);
1040 }
1041 spin_unlock_irqrestore(&card->lock, flags);
1042 return retval;
1043 }
1044
1045 /* ------------------------------------------------------------- */
1046
1047 static char *c4_procinfo(struct capi_ctr *ctrl)
1048 {
1049 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1050
1051 if (!cinfo)
1052 return "";
1053 sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
1054 cinfo->cardname[0] ? cinfo->cardname : "-",
1055 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
1056 cinfo->card ? cinfo->card->port : 0x0,
1057 cinfo->card ? cinfo->card->irq : 0,
1058 cinfo->card ? cinfo->card->membase : 0
1059 );
1060 return cinfo->infobuf;
1061 }
1062
1063 static int c4_read_proc(char *page, char **start, off_t off,
1064 int count, int *eof, struct capi_ctr *ctrl)
1065 {
1066 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1067 avmcard *card = cinfo->card;
1068 u8 flag;
1069 int len = 0;
1070 char *s;
1071
1072 len += sprintf(page+len, "%-16s %s\n", "name", card->name);
1073 len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
1074 len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
1075 len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
1076 switch (card->cardtype) {
1077 case avm_b1isa: s = "B1 ISA"; break;
1078 case avm_b1pci: s = "B1 PCI"; break;
1079 case avm_b1pcmcia: s = "B1 PCMCIA"; break;
1080 case avm_m1: s = "M1"; break;
1081 case avm_m2: s = "M2"; break;
1082 case avm_t1isa: s = "T1 ISA (HEMA)"; break;
1083 case avm_t1pci: s = "T1 PCI"; break;
1084 case avm_c4: s = "C4"; break;
1085 case avm_c2: s = "C2"; break;
1086 default: s = "???"; break;
1087 }
1088 len += sprintf(page+len, "%-16s %s\n", "type", s);
1089 if ((s = cinfo->version[VER_DRIVER]) != 0)
1090 len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
1091 if ((s = cinfo->version[VER_CARDTYPE]) != 0)
1092 len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
1093 if ((s = cinfo->version[VER_SERIAL]) != 0)
1094 len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
1095
1096 if (card->cardtype != avm_m1) {
1097 flag = ((u8 *)(ctrl->profile.manu))[3];
1098 if (flag)
1099 len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
1100 "protocol",
1101 (flag & 0x01) ? " DSS1" : "",
1102 (flag & 0x02) ? " CT1" : "",
1103 (flag & 0x04) ? " VN3" : "",
1104 (flag & 0x08) ? " NI1" : "",
1105 (flag & 0x10) ? " AUSTEL" : "",
1106 (flag & 0x20) ? " ESS" : "",
1107 (flag & 0x40) ? " 1TR6" : ""
1108 );
1109 }
1110 if (card->cardtype != avm_m1) {
1111 flag = ((u8 *)(ctrl->profile.manu))[5];
1112 if (flag)
1113 len += sprintf(page+len, "%-16s%s%s%s%s\n",
1114 "linetype",
1115 (flag & 0x01) ? " point to point" : "",
1116 (flag & 0x02) ? " point to multipoint" : "",
1117 (flag & 0x08) ? " leased line without D-channel" : "",
1118 (flag & 0x04) ? " leased line with D-channel" : ""
1119 );
1120 }
1121 len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
1122
1123 if (off+count >= len)
1124 *eof = 1;
1125 if (len < off)
1126 return 0;
1127 *start = page + off;
1128 return ((count < len-off) ? count : len-off);
1129 }
1130
1131 /* ------------------------------------------------------------- */
1132
1133 static int c4_add_card(struct capicardparams *p, struct pci_dev *dev,
1134 int nr_controllers)
1135 {
1136 avmcard *card;
1137 avmctrl_info *cinfo;
1138 int retval;
1139 int i;
1140
1141 card = b1_alloc_card(nr_controllers);
1142 if (!card) {
1143 printk(KERN_WARNING "c4: no memory.\n");
1144 retval = -ENOMEM;
1145 goto err;
1146 }
1147 card->dma = avmcard_dma_alloc("c4", dev, 2048+128, 2048+128);
1148 if (!card->dma) {
1149 printk(KERN_WARNING "c4: no memory.\n");
1150 retval = -ENOMEM;
1151 goto err_free;
1152 }
1153
1154 sprintf(card->name, "c%d-%x", nr_controllers, p->port);
1155 card->port = p->port;
1156 card->irq = p->irq;
1157 card->membase = p->membase;
1158 card->cardtype = (nr_controllers == 4) ? avm_c4 : avm_c2;
1159
1160 if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
1161 printk(KERN_WARNING "c4: ports 0x%03x-0x%03x in use.\n",
1162 card->port, card->port + AVMB1_PORTLEN);
1163 retval = -EBUSY;
1164 goto err_free_dma;
1165 }
1166
1167 card->mbase = ioremap(card->membase, 128);
1168 if (card->mbase == 0) {
1169 printk(KERN_NOTICE "c4: can't remap memory at 0x%lx\n",
1170 card->membase);
1171 retval = -EIO;
1172 goto err_release_region;
1173 }
1174
1175 retval = c4_detect(card);
1176 if (retval != 0) {
1177 printk(KERN_NOTICE "c4: NO card at 0x%x error(%d)\n",
1178 card->port, retval);
1179 retval = -EIO;
1180 goto err_unmap;
1181 }
1182 c4_reset(card);
1183
1184 retval = request_irq(card->irq, c4_interrupt, IRQF_SHARED, card->name, card);
1185 if (retval) {
1186 printk(KERN_ERR "c4: unable to get IRQ %d.\n",card->irq);
1187 retval = -EBUSY;
1188 goto err_unmap;
1189 }
1190
1191 for (i=0; i < nr_controllers ; i++) {
1192 cinfo = &card->ctrlinfo[i];
1193 cinfo->capi_ctrl.owner = THIS_MODULE;
1194 cinfo->capi_ctrl.driver_name = "c4";
1195 cinfo->capi_ctrl.driverdata = cinfo;
1196 cinfo->capi_ctrl.register_appl = c4_register_appl;
1197 cinfo->capi_ctrl.release_appl = c4_release_appl;
1198 cinfo->capi_ctrl.send_message = c4_send_message;
1199 cinfo->capi_ctrl.load_firmware = c4_load_firmware;
1200 cinfo->capi_ctrl.reset_ctr = c4_reset_ctr;
1201 cinfo->capi_ctrl.procinfo = c4_procinfo;
1202 cinfo->capi_ctrl.ctr_read_proc = c4_read_proc;
1203 strcpy(cinfo->capi_ctrl.name, card->name);
1204
1205 retval = attach_capi_ctr(&cinfo->capi_ctrl);
1206 if (retval) {
1207 printk(KERN_ERR "c4: attach controller failed (%d).\n", i);
1208 for (i--; i >= 0; i--) {
1209 cinfo = &card->ctrlinfo[i];
1210 detach_capi_ctr(&cinfo->capi_ctrl);
1211 }
1212 goto err_free_irq;
1213 }
1214 if (i == 0)
1215 card->cardnr = cinfo->capi_ctrl.cnr;
1216 }
1217
1218 printk(KERN_INFO "c4: AVM C%d at i/o %#x, irq %d, mem %#lx\n",
1219 nr_controllers, card->port, card->irq,
1220 card->membase);
1221 pci_set_drvdata(dev, card);
1222 return 0;
1223
1224 err_free_irq:
1225 free_irq(card->irq, card);
1226 err_unmap:
1227 iounmap(card->mbase);
1228 err_release_region:
1229 release_region(card->port, AVMB1_PORTLEN);
1230 err_free_dma:
1231 avmcard_dma_free(card->dma);
1232 err_free:
1233 b1_free_card(card);
1234 err:
1235 return retval;
1236 }
1237
1238 /* ------------------------------------------------------------- */
1239
1240 static int __devinit c4_probe(struct pci_dev *dev,
1241 const struct pci_device_id *ent)
1242 {
1243 int nr = ent->driver_data;
1244 int retval = 0;
1245 struct capicardparams param;
1246
1247 if (pci_enable_device(dev) < 0) {
1248 printk(KERN_ERR "c4: failed to enable AVM-C%d\n", nr);
1249 return -ENODEV;
1250 }
1251 pci_set_master(dev);
1252
1253 param.port = pci_resource_start(dev, 1);
1254 param.irq = dev->irq;
1255 param.membase = pci_resource_start(dev, 0);
1256
1257 printk(KERN_INFO "c4: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#x\n",
1258 nr, param.port, param.irq, param.membase);
1259
1260 retval = c4_add_card(&param, dev, nr);
1261 if (retval != 0) {
1262 printk(KERN_ERR "c4: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n",
1263 nr, param.port, param.irq, param.membase);
1264 return -ENODEV;
1265 }
1266 return 0;
1267 }
1268
1269 static struct pci_driver c4_pci_driver = {
1270 .name = "c4",
1271 .id_table = c4_pci_tbl,
1272 .probe = c4_probe,
1273 .remove = c4_remove,
1274 };
1275
1276 static struct capi_driver capi_driver_c2 = {
1277 .name = "c2",
1278 .revision = "1.0",
1279 };
1280
1281 static struct capi_driver capi_driver_c4 = {
1282 .name = "c4",
1283 .revision = "1.0",
1284 };
1285
1286 static int __init c4_init(void)
1287 {
1288 char *p;
1289 char rev[32];
1290 int err;
1291
1292 if ((p = strchr(revision, ':')) != 0 && p[1]) {
1293 strlcpy(rev, p + 2, 32);
1294 if ((p = strchr(rev, '$')) != 0 && p > rev)
1295 *(p-1) = 0;
1296 } else
1297 strcpy(rev, "1.0");
1298
1299 err = pci_register_driver(&c4_pci_driver);
1300 if (!err) {
1301 strlcpy(capi_driver_c2.revision, rev, 32);
1302 register_capi_driver(&capi_driver_c2);
1303 strlcpy(capi_driver_c4.revision, rev, 32);
1304 register_capi_driver(&capi_driver_c4);
1305 printk(KERN_INFO "c4: revision %s\n", rev);
1306 }
1307 return err;
1308 }
1309
1310 static void __exit c4_exit(void)
1311 {
1312 unregister_capi_driver(&capi_driver_c2);
1313 unregister_capi_driver(&capi_driver_c4);
1314 pci_unregister_driver(&c4_pci_driver);
1315 }
1316
1317 module_init(c4_init);
1318 module_exit(c4_exit);
Tomato firmware and modifications.