File: /usr/src/linux/drivers/isdn/avmb1/b1.c
1 /*
2 * $Id: b1.c,v 1.20.6.6 2001/05/17 21:15:33 kai Exp $
3 *
4 * Common module for AVM B1 cards.
5 *
6 * (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de)
7 *
8 */
9
10 #include <linux/module.h>
11 #include <linux/kernel.h>
12 #include <linux/skbuff.h>
13 #include <linux/delay.h>
14 #include <linux/mm.h>
15 #include <linux/interrupt.h>
16 #include <linux/ioport.h>
17 #include <linux/capi.h>
18 #include <linux/kernelcapi.h>
19 #include <asm/io.h>
20 #include <linux/init.h>
21 #include <asm/uaccess.h>
22 #include <linux/netdevice.h>
23 #include "capilli.h"
24 #include "avmcard.h"
25 #include "capicmd.h"
26 #include "capiutil.h"
27
28 static char *revision = "$Revision: 1.20.6.6 $";
29
30 /* ------------------------------------------------------------- */
31
32 MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
33
34 /* ------------------------------------------------------------- */
35
36 int b1_irq_table[16] =
37 {0,
38 0,
39 0,
40 192, /* irq 3 */
41 32, /* irq 4 */
42 160, /* irq 5 */
43 96, /* irq 6 */
44 224, /* irq 7 */
45 0,
46 64, /* irq 9 */
47 80, /* irq 10 */
48 208, /* irq 11 */
49 48, /* irq 12 */
50 0,
51 0,
52 112, /* irq 15 */
53 };
54
55 /* ------------------------------------------------------------- */
56
57 int b1_detect(unsigned int base, enum avmcardtype cardtype)
58 {
59 int onoff, i;
60
61 /*
62 * Statusregister 0000 00xx
63 */
64 if ((inb(base + B1_INSTAT) & 0xfc)
65 || (inb(base + B1_OUTSTAT) & 0xfc))
66 return 1;
67 /*
68 * Statusregister 0000 001x
69 */
70 b1outp(base, B1_INSTAT, 0x2); /* enable irq */
71 /* b1outp(base, B1_OUTSTAT, 0x2); */
72 if ((inb(base + B1_INSTAT) & 0xfe) != 0x2
73 /* || (inb(base + B1_OUTSTAT) & 0xfe) != 0x2 */)
74 return 2;
75 /*
76 * Statusregister 0000 000x
77 */
78 b1outp(base, B1_INSTAT, 0x0); /* disable irq */
79 b1outp(base, B1_OUTSTAT, 0x0);
80 if ((inb(base + B1_INSTAT) & 0xfe)
81 || (inb(base + B1_OUTSTAT) & 0xfe))
82 return 3;
83
84 for (onoff = !0, i= 0; i < 10 ; i++) {
85 b1_set_test_bit(base, cardtype, onoff);
86 if (b1_get_test_bit(base, cardtype) != onoff)
87 return 4;
88 onoff = !onoff;
89 }
90
91 if (cardtype == avm_m1)
92 return 0;
93
94 if ((b1_rd_reg(base, B1_STAT1(cardtype)) & 0x0f) != 0x01)
95 return 5;
96
97 return 0;
98 }
99
100 void b1_getrevision(avmcard *card)
101 {
102 card->class = inb(card->port + B1_ANALYSE);
103 card->revision = inb(card->port + B1_REVISION);
104 }
105
106 int b1_load_t4file(avmcard *card, capiloaddatapart * t4file)
107 {
108 unsigned char buf[256];
109 unsigned char *dp;
110 int i, left, retval;
111 unsigned int base = card->port;
112
113 dp = t4file->data;
114 left = t4file->len;
115 while (left > sizeof(buf)) {
116 if (t4file->user) {
117 retval = copy_from_user(buf, dp, sizeof(buf));
118 if (retval)
119 return -EFAULT;
120 } else {
121 memcpy(buf, dp, sizeof(buf));
122 }
123 for (i = 0; i < sizeof(buf); i++)
124 if (b1_save_put_byte(base, buf[i]) < 0) {
125 printk(KERN_ERR "%s: corrupted firmware file ?\n",
126 card->name);
127 return -EIO;
128 }
129 left -= sizeof(buf);
130 dp += sizeof(buf);
131 }
132 if (left) {
133 if (t4file->user) {
134 retval = copy_from_user(buf, dp, left);
135 if (retval)
136 return -EFAULT;
137 } else {
138 memcpy(buf, dp, left);
139 }
140 for (i = 0; i < left; i++)
141 if (b1_save_put_byte(base, buf[i]) < 0) {
142 printk(KERN_ERR "%s: corrupted firmware file ?\n",
143 card->name);
144 return -EIO;
145 }
146 }
147 return 0;
148 }
149
150 int b1_load_config(avmcard *card, capiloaddatapart * config)
151 {
152 unsigned char buf[256];
153 unsigned char *dp;
154 unsigned int base = card->port;
155 int i, j, left, retval;
156
157 dp = config->data;
158 left = config->len;
159 if (left) {
160 b1_put_byte(base, SEND_CONFIG);
161 b1_put_word(base, 1);
162 b1_put_byte(base, SEND_CONFIG);
163 b1_put_word(base, left);
164 }
165 while (left > sizeof(buf)) {
166 if (config->user) {
167 retval = copy_from_user(buf, dp, sizeof(buf));
168 if (retval)
169 return -EFAULT;
170 } else {
171 memcpy(buf, dp, sizeof(buf));
172 }
173 for (i = 0; i < sizeof(buf); ) {
174 b1_put_byte(base, SEND_CONFIG);
175 for (j=0; j < 4; j++) {
176 b1_put_byte(base, buf[i++]);
177 }
178 }
179 left -= sizeof(buf);
180 dp += sizeof(buf);
181 }
182 if (left) {
183 if (config->user) {
184 retval = copy_from_user(buf, dp, left);
185 if (retval)
186 return -EFAULT;
187 } else {
188 memcpy(buf, dp, left);
189 }
190 for (i = 0; i < left; ) {
191 b1_put_byte(base, SEND_CONFIG);
192 for (j=0; j < 4; j++) {
193 if (i < left)
194 b1_put_byte(base, buf[i++]);
195 else
196 b1_put_byte(base, 0);
197 }
198 }
199 }
200 return 0;
201 }
202
203 int b1_loaded(avmcard *card)
204 {
205 unsigned int base = card->port;
206 unsigned long stop;
207 unsigned char ans;
208 unsigned long tout = 2;
209
210 for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
211 if (b1_tx_empty(base))
212 break;
213 }
214 if (!b1_tx_empty(base)) {
215 printk(KERN_ERR "%s: b1_loaded: tx err, corrupted t4 file ?\n",
216 card->name);
217 return 0;
218 }
219 b1_put_byte(base, SEND_POLL);
220 for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
221 if (b1_rx_full(base)) {
222 if ((ans = b1_get_byte(base)) == RECEIVE_POLL) {
223 return 1;
224 }
225 printk(KERN_ERR "%s: b1_loaded: got 0x%x, firmware not running\n",
226 card->name, ans);
227 return 0;
228 }
229 }
230 printk(KERN_ERR "%s: b1_loaded: firmware not running\n", card->name);
231 return 0;
232 }
233
234 /* ------------------------------------------------------------- */
235
236 int b1_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
237 {
238 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
239 avmcard *card = cinfo->card;
240 unsigned int port = card->port;
241 unsigned long flags;
242 int retval;
243
244 b1_reset(port);
245
246 if ((retval = b1_load_t4file(card, &data->firmware))) {
247 b1_reset(port);
248 printk(KERN_ERR "%s: failed to load t4file!!\n",
249 card->name);
250 return retval;
251 }
252
253 b1_disable_irq(port);
254
255 if (data->configuration.len > 0 && data->configuration.data) {
256 if ((retval = b1_load_config(card, &data->configuration))) {
257 b1_reset(port);
258 printk(KERN_ERR "%s: failed to load config!!\n",
259 card->name);
260 return retval;
261 }
262 }
263
264 if (!b1_loaded(card)) {
265 printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
266 return -EIO;
267 }
268
269 save_flags(flags);
270 cli();
271 b1_setinterrupt(port, card->irq, card->cardtype);
272 b1_put_byte(port, SEND_INIT);
273 b1_put_word(port, CAPI_MAXAPPL);
274 b1_put_word(port, AVM_NCCI_PER_CHANNEL*2);
275 b1_put_word(port, ctrl->cnr - 1);
276 restore_flags(flags);
277
278 return 0;
279 }
280
281 void b1_reset_ctr(struct capi_ctr *ctrl)
282 {
283 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
284 avmcard *card = cinfo->card;
285 unsigned int port = card->port;
286
287 b1_reset(port);
288 b1_reset(port);
289
290 memset(cinfo->version, 0, sizeof(cinfo->version));
291 ctrl->reseted(ctrl);
292 }
293
294 void b1_register_appl(struct capi_ctr *ctrl,
295 __u16 appl,
296 capi_register_params *rp)
297 {
298 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
299 avmcard *card = cinfo->card;
300 unsigned int port = card->port;
301 unsigned long flags;
302 int nconn, want = rp->level3cnt;
303
304 if (want > 0) nconn = want;
305 else nconn = ctrl->profile.nbchannel * -want;
306 if (nconn == 0) nconn = ctrl->profile.nbchannel;
307
308 save_flags(flags);
309 cli();
310 b1_put_byte(port, SEND_REGISTER);
311 b1_put_word(port, appl);
312 b1_put_word(port, 1024 * (nconn+1));
313 b1_put_word(port, nconn);
314 b1_put_word(port, rp->datablkcnt);
315 b1_put_word(port, rp->datablklen);
316 restore_flags(flags);
317
318 ctrl->appl_registered(ctrl, appl);
319 }
320
321 void b1_release_appl(struct capi_ctr *ctrl, __u16 appl)
322 {
323 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
324 avmcard *card = cinfo->card;
325 unsigned int port = card->port;
326 unsigned long flags;
327
328 save_flags(flags);
329 cli();
330 b1_put_byte(port, SEND_RELEASE);
331 b1_put_word(port, appl);
332 restore_flags(flags);
333 }
334
335 void b1_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
336 {
337 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
338 avmcard *card = cinfo->card;
339 unsigned int port = card->port;
340 unsigned long flags;
341 __u16 len = CAPIMSG_LEN(skb->data);
342 __u8 cmd = CAPIMSG_COMMAND(skb->data);
343 __u8 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
344
345 save_flags(flags);
346 cli();
347 if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
348 __u16 dlen = CAPIMSG_DATALEN(skb->data);
349 b1_put_byte(port, SEND_DATA_B3_REQ);
350 b1_put_slice(port, skb->data, len);
351 b1_put_slice(port, skb->data + len, dlen);
352 } else {
353 b1_put_byte(port, SEND_MESSAGE);
354 b1_put_slice(port, skb->data, len);
355 }
356 restore_flags(flags);
357 dev_kfree_skb_any(skb);
358 }
359
360 /* ------------------------------------------------------------- */
361
362 void b1_parse_version(avmctrl_info *cinfo)
363 {
364 struct capi_ctr *ctrl = cinfo->capi_ctrl;
365 avmcard *card = cinfo->card;
366 capi_profile *profp;
367 __u8 *dversion;
368 __u8 flag;
369 int i, j;
370
371 for (j = 0; j < AVM_MAXVERSION; j++)
372 cinfo->version[j] = "\0\0" + 1;
373 for (i = 0, j = 0;
374 j < AVM_MAXVERSION && i < cinfo->versionlen;
375 j++, i += cinfo->versionbuf[i] + 1)
376 cinfo->version[j] = &cinfo->versionbuf[i + 1];
377
378 strncpy(ctrl->serial, cinfo->version[VER_SERIAL], CAPI_SERIAL_LEN);
379 memcpy(&ctrl->profile, cinfo->version[VER_PROFILE],sizeof(capi_profile));
380 strncpy(ctrl->manu, "AVM GmbH", CAPI_MANUFACTURER_LEN);
381 dversion = cinfo->version[VER_DRIVER];
382 ctrl->version.majorversion = 2;
383 ctrl->version.minorversion = 0;
384 ctrl->version.majormanuversion = (((dversion[0] - '0') & 0xf) << 4);
385 ctrl->version.majormanuversion |= ((dversion[2] - '0') & 0xf);
386 ctrl->version.minormanuversion = (dversion[3] - '0') << 4;
387 ctrl->version.minormanuversion |=
388 (dversion[5] - '0') * 10 + ((dversion[6] - '0') & 0xf);
389
390 profp = &ctrl->profile;
391
392 flag = ((__u8 *)(profp->manu))[1];
393 switch (flag) {
394 case 0: if (cinfo->version[VER_CARDTYPE])
395 strcpy(cinfo->cardname, cinfo->version[VER_CARDTYPE]);
396 else strcpy(cinfo->cardname, "B1");
397 break;
398 case 3: strcpy(cinfo->cardname,"PCMCIA B"); break;
399 case 4: strcpy(cinfo->cardname,"PCMCIA M1"); break;
400 case 5: strcpy(cinfo->cardname,"PCMCIA M2"); break;
401 case 6: strcpy(cinfo->cardname,"B1 V3.0"); break;
402 case 7: strcpy(cinfo->cardname,"B1 PCI"); break;
403 default: sprintf(cinfo->cardname, "AVM?%u", (unsigned int)flag); break;
404 }
405 printk(KERN_NOTICE "%s: card %d \"%s\" ready.\n",
406 card->name, ctrl->cnr, cinfo->cardname);
407
408 flag = ((__u8 *)(profp->manu))[3];
409 if (flag)
410 printk(KERN_NOTICE "%s: card %d Protocol:%s%s%s%s%s%s%s\n",
411 card->name,
412 ctrl->cnr,
413 (flag & 0x01) ? " DSS1" : "",
414 (flag & 0x02) ? " CT1" : "",
415 (flag & 0x04) ? " VN3" : "",
416 (flag & 0x08) ? " NI1" : "",
417 (flag & 0x10) ? " AUSTEL" : "",
418 (flag & 0x20) ? " ESS" : "",
419 (flag & 0x40) ? " 1TR6" : ""
420 );
421
422 flag = ((__u8 *)(profp->manu))[5];
423 if (flag)
424 printk(KERN_NOTICE "%s: card %d Linetype:%s%s%s%s\n",
425 card->name,
426 ctrl->cnr,
427 (flag & 0x01) ? " point to point" : "",
428 (flag & 0x02) ? " point to multipoint" : "",
429 (flag & 0x08) ? " leased line without D-channel" : "",
430 (flag & 0x04) ? " leased line with D-channel" : ""
431 );
432 }
433
434 /* ------------------------------------------------------------- */
435
436 void b1_handle_interrupt(avmcard * card)
437 {
438 avmctrl_info *cinfo = &card->ctrlinfo[0];
439 struct capi_ctr *ctrl = cinfo->capi_ctrl;
440 unsigned char b1cmd;
441 struct sk_buff *skb;
442
443 unsigned ApplId;
444 unsigned MsgLen;
445 unsigned DataB3Len;
446 unsigned NCCI;
447 unsigned WindowSize;
448
449 if (!b1_rx_full(card->port))
450 return;
451
452 b1cmd = b1_get_byte(card->port);
453
454 switch (b1cmd) {
455
456 case RECEIVE_DATA_B3_IND:
457
458 ApplId = (unsigned) b1_get_word(card->port);
459 MsgLen = b1_get_slice(card->port, card->msgbuf);
460 DataB3Len = b1_get_slice(card->port, card->databuf);
461
462 if (MsgLen < 30) { /* not CAPI 64Bit */
463 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
464 MsgLen = 30;
465 CAPIMSG_SETLEN(card->msgbuf, 30);
466 }
467 if (!(skb = alloc_skb(DataB3Len + MsgLen, GFP_ATOMIC))) {
468 printk(KERN_ERR "%s: incoming packet dropped\n",
469 card->name);
470 } else {
471 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
472 memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
473 ctrl->handle_capimsg(ctrl, ApplId, skb);
474 }
475 break;
476
477 case RECEIVE_MESSAGE:
478
479 ApplId = (unsigned) b1_get_word(card->port);
480 MsgLen = b1_get_slice(card->port, card->msgbuf);
481 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
482 printk(KERN_ERR "%s: incoming packet dropped\n",
483 card->name);
484 } else {
485 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
486 ctrl->handle_capimsg(ctrl, ApplId, skb);
487 }
488 break;
489
490 case RECEIVE_NEW_NCCI:
491
492 ApplId = b1_get_word(card->port);
493 NCCI = b1_get_word(card->port);
494 WindowSize = b1_get_word(card->port);
495
496 ctrl->new_ncci(ctrl, ApplId, NCCI, WindowSize);
497
498 break;
499
500 case RECEIVE_FREE_NCCI:
501
502 ApplId = b1_get_word(card->port);
503 NCCI = b1_get_word(card->port);
504
505 if (NCCI != 0xffffffff)
506 ctrl->free_ncci(ctrl, ApplId, NCCI);
507 else ctrl->appl_released(ctrl, ApplId);
508 break;
509
510 case RECEIVE_START:
511 /* b1_put_byte(card->port, SEND_POLLACK); */
512 ctrl->resume_output(ctrl);
513 break;
514
515 case RECEIVE_STOP:
516 ctrl->suspend_output(ctrl);
517 break;
518
519 case RECEIVE_INIT:
520
521 cinfo->versionlen = b1_get_slice(card->port, cinfo->versionbuf);
522 b1_parse_version(cinfo);
523 printk(KERN_INFO "%s: %s-card (%s) now active\n",
524 card->name,
525 cinfo->version[VER_CARDTYPE],
526 cinfo->version[VER_DRIVER]);
527 ctrl->ready(ctrl);
528 break;
529
530 case RECEIVE_TASK_READY:
531 ApplId = (unsigned) b1_get_word(card->port);
532 MsgLen = b1_get_slice(card->port, card->msgbuf);
533 card->msgbuf[MsgLen] = 0;
534 while ( MsgLen > 0
535 && ( card->msgbuf[MsgLen-1] == '\n'
536 || card->msgbuf[MsgLen-1] == '\r')) {
537 card->msgbuf[MsgLen-1] = 0;
538 MsgLen--;
539 }
540 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
541 card->name, ApplId, card->msgbuf);
542 break;
543
544 case RECEIVE_DEBUGMSG:
545 MsgLen = b1_get_slice(card->port, card->msgbuf);
546 card->msgbuf[MsgLen] = 0;
547 while ( MsgLen > 0
548 && ( card->msgbuf[MsgLen-1] == '\n'
549 || card->msgbuf[MsgLen-1] == '\r')) {
550 card->msgbuf[MsgLen-1] = 0;
551 MsgLen--;
552 }
553 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
554 break;
555
556 case 0xff:
557 printk(KERN_ERR "%s: card removed ?\n", card->name);
558 return;
559 default:
560 printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
561 card->name, b1cmd);
562 return;
563 }
564 }
565
566 /* ------------------------------------------------------------- */
567 int b1ctl_read_proc(char *page, char **start, off_t off,
568 int count, int *eof, struct capi_ctr *ctrl)
569 {
570 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
571 avmcard *card = cinfo->card;
572 __u8 flag;
573 int len = 0;
574 char *s;
575
576 len += sprintf(page+len, "%-16s %s\n", "name", card->name);
577 len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
578 len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
579 switch (card->cardtype) {
580 case avm_b1isa: s = "B1 ISA"; break;
581 case avm_b1pci: s = "B1 PCI"; break;
582 case avm_b1pcmcia: s = "B1 PCMCIA"; break;
583 case avm_m1: s = "M1"; break;
584 case avm_m2: s = "M2"; break;
585 case avm_t1isa: s = "T1 ISA (HEMA)"; break;
586 case avm_t1pci: s = "T1 PCI"; break;
587 case avm_c4: s = "C4"; break;
588 case avm_c2: s = "C2"; break;
589 default: s = "???"; break;
590 }
591 len += sprintf(page+len, "%-16s %s\n", "type", s);
592 if (card->cardtype == avm_t1isa)
593 len += sprintf(page+len, "%-16s %d\n", "cardnr", card->cardnr);
594 if ((s = cinfo->version[VER_DRIVER]) != 0)
595 len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
596 if ((s = cinfo->version[VER_CARDTYPE]) != 0)
597 len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
598 if ((s = cinfo->version[VER_SERIAL]) != 0)
599 len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
600
601 if (card->cardtype != avm_m1) {
602 flag = ((__u8 *)(ctrl->profile.manu))[3];
603 if (flag)
604 len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
605 "protocol",
606 (flag & 0x01) ? " DSS1" : "",
607 (flag & 0x02) ? " CT1" : "",
608 (flag & 0x04) ? " VN3" : "",
609 (flag & 0x08) ? " NI1" : "",
610 (flag & 0x10) ? " AUSTEL" : "",
611 (flag & 0x20) ? " ESS" : "",
612 (flag & 0x40) ? " 1TR6" : ""
613 );
614 }
615 if (card->cardtype != avm_m1) {
616 flag = ((__u8 *)(ctrl->profile.manu))[5];
617 if (flag)
618 len += sprintf(page+len, "%-16s%s%s%s%s\n",
619 "linetype",
620 (flag & 0x01) ? " point to point" : "",
621 (flag & 0x02) ? " point to multipoint" : "",
622 (flag & 0x08) ? " leased line without D-channel" : "",
623 (flag & 0x04) ? " leased line with D-channel" : ""
624 );
625 }
626 len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
627
628 if (off+count >= len)
629 *eof = 1;
630 if (len < off)
631 return 0;
632 *start = page + off;
633 return ((count < len-off) ? count : len-off);
634 }
635
636 /* ------------------------------------------------------------- */
637
638 EXPORT_SYMBOL(b1_irq_table);
639
640 EXPORT_SYMBOL(b1_detect);
641 EXPORT_SYMBOL(b1_getrevision);
642 EXPORT_SYMBOL(b1_load_t4file);
643 EXPORT_SYMBOL(b1_load_config);
644 EXPORT_SYMBOL(b1_loaded);
645 EXPORT_SYMBOL(b1_load_firmware);
646 EXPORT_SYMBOL(b1_reset_ctr);
647 EXPORT_SYMBOL(b1_register_appl);
648 EXPORT_SYMBOL(b1_release_appl);
649 EXPORT_SYMBOL(b1_send_message);
650
651 EXPORT_SYMBOL(b1_parse_version);
652 EXPORT_SYMBOL(b1_handle_interrupt);
653
654 EXPORT_SYMBOL(b1ctl_read_proc);
655
656 static int __init b1_init(void)
657 {
658 char *p;
659 char rev[32];
660
661 if ((p = strchr(revision, ':')) != 0 && p[1]) {
662 strncpy(rev, p + 2, sizeof(rev));
663 rev[sizeof(rev)-1] = 0;
664 if ((p = strchr(rev, '$')) != 0 && p > rev)
665 *(p-1) = 0;
666 } else
667 strcpy(rev, "1.0");
668
669 printk(KERN_INFO "b1: revision %s\n", rev);
670
671 return 0;
672 }
673
674 static void __exit b1_exit(void)
675 {
676 }
677
678 module_init(b1_init);
679 module_exit(b1_exit);
680