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[XFRM]: skb_cow_data() does not set proper owner for new skbs.
[linux-2.6/verdex.git] / drivers / isdn / hardware / avm / c4.c
blobfa6b93b1a42d676e12576b6d49ffc50f7b556e6b
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/config.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/skbuff.h>
16 #include <linux/delay.h>
17 #include <linux/mm.h>
18 #include <linux/interrupt.h>
19 #include <linux/ioport.h>
20 #include <linux/pci.h>
21 #include <linux/capi.h>
22 #include <linux/kernelcapi.h>
23 #include <linux/init.h>
24 #include <asm/io.h>
25 #include <asm/uaccess.h>
26 #include <linux/netdevice.h>
27 #include <linux/isdn/capicmd.h>
28 #include <linux/isdn/capiutil.h>
29 #include <linux/isdn/capilli.h>
30 #include "avmcard.h"
31
32 #undef CONFIG_C4_DEBUG
33 #undef CONFIG_C4_POLLDEBUG
34
35 /* ------------------------------------------------------------- */
36
37 static char *revision = "$Revision: 1.1.2.2 $";
38
39 /* ------------------------------------------------------------- */
40
41 static int suppress_pollack;
42
43 static struct pci_device_id c4_pci_tbl[] = {
44 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, 0, 0, (unsigned long)4 },
45 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2, 0, 0, (unsigned long)2 },
46 { } /* Terminating entry */
47 };
48
49 MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
50 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM C2/C4 cards");
51 MODULE_AUTHOR("Carsten Paeth");
52 MODULE_LICENSE("GPL");
53 MODULE_PARM(suppress_pollack, "0-1i");
54
55 /* ------------------------------------------------------------- */
56
57 static void c4_dispatch_tx(avmcard *card);
58
59 /* ------------------------------------------------------------- */
60
61 #define DC21285_DRAM_A0MR 0x40000000
62 #define DC21285_DRAM_A1MR 0x40004000
63 #define DC21285_DRAM_A2MR 0x40008000
64 #define DC21285_DRAM_A3MR 0x4000C000
65
66 #define CAS_OFFSET 0x88
67
68 #define DC21285_ARMCSR_BASE 0x42000000
69
70 #define PCI_OUT_INT_STATUS 0x30
71 #define PCI_OUT_INT_MASK 0x34
72 #define MAILBOX_0 0x50
73 #define MAILBOX_1 0x54
74 #define MAILBOX_2 0x58
75 #define MAILBOX_3 0x5C
76 #define DOORBELL 0x60
77 #define DOORBELL_SETUP 0x64
78
79 #define CHAN_1_CONTROL 0x90
80 #define CHAN_2_CONTROL 0xB0
81 #define DRAM_TIMING 0x10C
82 #define DRAM_ADDR_SIZE_0 0x110
83 #define DRAM_ADDR_SIZE_1 0x114
84 #define DRAM_ADDR_SIZE_2 0x118
85 #define DRAM_ADDR_SIZE_3 0x11C
86 #define SA_CONTROL 0x13C
87 #define XBUS_CYCLE 0x148
88 #define XBUS_STROBE 0x14C
89 #define DBELL_PCI_MASK 0x150
90 #define DBELL_SA_MASK 0x154
91
92 #define SDRAM_SIZE 0x1000000
93
94 /* ------------------------------------------------------------- */
95
96 #define MBOX_PEEK_POKE MAILBOX_0
97
98 #define DBELL_ADDR 0x01
99 #define DBELL_DATA 0x02
100 #define DBELL_RNWR 0x40
101 #define DBELL_INIT 0x80
102
103 /* ------------------------------------------------------------- */
104
105 #define MBOX_UP_ADDR MAILBOX_0
106 #define MBOX_UP_LEN MAILBOX_1
107 #define MBOX_DOWN_ADDR MAILBOX_2
108 #define MBOX_DOWN_LEN MAILBOX_3
109
110 #define DBELL_UP_HOST 0x00000100
111 #define DBELL_UP_ARM 0x00000200
112 #define DBELL_DOWN_HOST 0x00000400
113 #define DBELL_DOWN_ARM 0x00000800
114 #define DBELL_RESET_HOST 0x40000000
115 #define DBELL_RESET_ARM 0x80000000
116
117 /* ------------------------------------------------------------- */
118
119 #define DRAM_TIMING_DEF 0x001A01A5
120 #define DRAM_AD_SZ_DEF0 0x00000045
121 #define DRAM_AD_SZ_NULL 0x00000000
122
123 #define SA_CTL_ALLRIGHT 0x64AA0271
124
125 #define INIT_XBUS_CYCLE 0x100016DB
126 #define INIT_XBUS_STROBE 0xF1F1F1F1
127
128 /* ------------------------------------------------------------- */
129
130 #define RESET_TIMEOUT (15*HZ) /* 15 sec */
131 #define PEEK_POKE_TIMEOUT (HZ/10) /* 0.1 sec */
132
133 /* ------------------------------------------------------------- */
134
135 #define c4outmeml(addr, value) writel(value, addr)
136 #define c4inmeml(addr) readl(addr)
137 #define c4outmemw(addr, value) writew(value, addr)
138 #define c4inmemw(addr) readw(addr)
139 #define c4outmemb(addr, value) writeb(value, addr)
140 #define c4inmemb(addr) readb(addr)
141
142 /* ------------------------------------------------------------- */
143
144 static inline int wait_for_doorbell(avmcard *card, unsigned long t)
145 {
146 unsigned long stop;
147
148 stop = jiffies + t;
149 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
150 if (!time_before(jiffies, stop))
151 return -1;
152 mb();
153 }
154 return 0;
155 }
156
157 static int c4_poke(avmcard *card, unsigned long off, unsigned long value)
158 {
159
160 if (wait_for_doorbell(card, HZ/10) < 0)
161 return -1;
162
163 c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
164 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
165
166 if (wait_for_doorbell(card, HZ/10) < 0)
167 return -1;
168
169 c4outmeml(card->mbase+MBOX_PEEK_POKE, value);
170 c4outmeml(card->mbase+DOORBELL, DBELL_DATA | DBELL_ADDR);
171
172 return 0;
173 }
174
175 static int c4_peek(avmcard *card, unsigned long off, unsigned long *valuep)
176 {
177 if (wait_for_doorbell(card, HZ/10) < 0)
178 return -1;
179
180 c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
181 c4outmeml(card->mbase+DOORBELL, DBELL_RNWR | DBELL_ADDR);
182
183 if (wait_for_doorbell(card, HZ/10) < 0)
184 return -1;
185
186 *valuep = c4inmeml(card->mbase+MBOX_PEEK_POKE);
187
188 return 0;
189 }
190
191 /* ------------------------------------------------------------- */
192
193 static int c4_load_t4file(avmcard *card, capiloaddatapart * t4file)
194 {
195 u32 val;
196 unsigned char *dp;
197 u_int left;
198 u32 loadoff = 0;
199
200 dp = t4file->data;
201 left = t4file->len;
202 while (left >= sizeof(u32)) {
203 if (t4file->user) {
204 if (copy_from_user(&val, dp, sizeof(val)))
205 return -EFAULT;
206 } else {
207 memcpy(&val, dp, sizeof(val));
208 }
209 if (c4_poke(card, loadoff, val)) {
210 printk(KERN_ERR "%s: corrupted firmware file ?\n",
211 card->name);
212 return -EIO;
213 }
214 left -= sizeof(u32);
215 dp += sizeof(u32);
216 loadoff += sizeof(u32);
217 }
218 if (left) {
219 val = 0;
220 if (t4file->user) {
221 if (copy_from_user(&val, dp, left))
222 return -EFAULT;
223 } else {
224 memcpy(&val, dp, left);
225 }
226 if (c4_poke(card, loadoff, val)) {
227 printk(KERN_ERR "%s: corrupted firmware file ?\n",
228 card->name);
229 return -EIO;
230 }
231 }
232 return 0;
233 }
234
235 /* ------------------------------------------------------------- */
236
237 static inline void _put_byte(void **pp, u8 val)
238 {
239 u8 *s = *pp;
240 *s++ = val;
241 *pp = s;
242 }
243
244 static inline void _put_word(void **pp, u32 val)
245 {
246 u8 *s = *pp;
247 *s++ = val & 0xff;
248 *s++ = (val >> 8) & 0xff;
249 *s++ = (val >> 16) & 0xff;
250 *s++ = (val >> 24) & 0xff;
251 *pp = s;
252 }
253
254 static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len)
255 {
256 unsigned i = len;
257 _put_word(pp, i);
258 while (i-- > 0)
259 _put_byte(pp, *dp++);
260 }
261
262 static inline u8 _get_byte(void **pp)
263 {
264 u8 *s = *pp;
265 u8 val;
266 val = *s++;
267 *pp = s;
268 return val;
269 }
270
271 static inline u32 _get_word(void **pp)
272 {
273 u8 *s = *pp;
274 u32 val;
275 val = *s++;
276 val |= (*s++ << 8);
277 val |= (*s++ << 16);
278 val |= (*s++ << 24);
279 *pp = s;
280 return val;
281 }
282
283 static inline u32 _get_slice(void **pp, unsigned char *dp)
284 {
285 unsigned int len, i;
286
287 len = i = _get_word(pp);
288 while (i-- > 0) *dp++ = _get_byte(pp);
289 return len;
290 }
291
292 /* ------------------------------------------------------------- */
293
294 static void c4_reset(avmcard *card)
295 {
296 unsigned long stop;
297
298 c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
299
300 stop = jiffies + HZ*10;
301 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
302 if (!time_before(jiffies, stop))
303 return;
304 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
305 mb();
306 }
307
308 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
309 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
310 }
311
312 /* ------------------------------------------------------------- */
313
314 static int c4_detect(avmcard *card)
315 {
316 unsigned long stop, dummy;
317
318 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
319 if (c4inmeml(card->mbase+PCI_OUT_INT_MASK) != 0x0c)
320 return 1;
321
322 c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
323
324 stop = jiffies + HZ*10;
325 while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
326 if (!time_before(jiffies, stop))
327 return 2;
328 c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
329 mb();
330 }
331
332 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
333 c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
334
335 c4outmeml(card->mbase+MAILBOX_0, 0x55aa55aa);
336 if (c4inmeml(card->mbase+MAILBOX_0) != 0x55aa55aa) return 3;
337
338 c4outmeml(card->mbase+MAILBOX_0, 0xaa55aa55);
339 if (c4inmeml(card->mbase+MAILBOX_0) != 0xaa55aa55) return 4;
340
341 if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_SA_MASK, 0)) return 5;
342 if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_PCI_MASK, 0)) return 6;
343 if (c4_poke(card, DC21285_ARMCSR_BASE+SA_CONTROL, SA_CTL_ALLRIGHT))
344 return 7;
345 if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_CYCLE, INIT_XBUS_CYCLE))
346 return 8;
347 if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_STROBE, INIT_XBUS_STROBE))
348 return 8;
349 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, 0)) return 9;
350
351 mdelay(1);
352
353 if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10;
354 if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11;
355 if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12;
356 if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13;
357
358 if (c4_poke(card, DC21285_DRAM_A0MR+CAS_OFFSET, 0)) return 14;
359 if (c4_poke(card, DC21285_DRAM_A1MR+CAS_OFFSET, 0)) return 15;
360 if (c4_poke(card, DC21285_DRAM_A2MR+CAS_OFFSET, 0)) return 16;
361 if (c4_poke(card, DC21285_DRAM_A3MR+CAS_OFFSET, 0)) return 17;
362
363 mdelay(1);
364
365 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, DRAM_TIMING_DEF))
366 return 18;
367
368 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_0,DRAM_AD_SZ_DEF0))
369 return 19;
370 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_1,DRAM_AD_SZ_NULL))
371 return 20;
372 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_2,DRAM_AD_SZ_NULL))
373 return 21;
374 if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_3,DRAM_AD_SZ_NULL))
375 return 22;
376
377 /* Transputer test */
378
379 if ( c4_poke(card, 0x000000, 0x11111111)
380 || c4_poke(card, 0x400000, 0x22222222)
381 || c4_poke(card, 0x800000, 0x33333333)
382 || c4_poke(card, 0xC00000, 0x44444444))
383 return 23;
384
385 if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111
386 || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222
387 || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333
388 || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444)
389 return 24;
390
391 if ( c4_poke(card, 0x000000, 0x55555555)
392 || c4_poke(card, 0x400000, 0x66666666)
393 || c4_poke(card, 0x800000, 0x77777777)
394 || c4_poke(card, 0xC00000, 0x88888888))
395 return 25;
396
397 if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555
398 || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666
399 || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777
400 || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888)
401 return 26;
402
403 return 0;
404 }
405
406 /* ------------------------------------------------------------- */
407
408 static void c4_dispatch_tx(avmcard *card)
409 {
410 avmcard_dmainfo *dma = card->dma;
411 struct sk_buff *skb;
412 u8 cmd, subcmd;
413 u16 len;
414 u32 txlen;
415 void *p;
416
417
418 if (card->csr & DBELL_DOWN_ARM) { /* tx busy */
419 return;
420 }
421
422 skb = skb_dequeue(&dma->send_queue);
423 if (!skb) {
424 #ifdef CONFIG_C4_DEBUG
425 printk(KERN_DEBUG "%s: tx underrun\n", card->name);
426 #endif
427 return;
428 }
429
430 len = CAPIMSG_LEN(skb->data);
431
432 if (len) {
433 cmd = CAPIMSG_COMMAND(skb->data);
434 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
435
436 p = dma->sendbuf.dmabuf;
437
438 if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
439 u16 dlen = CAPIMSG_DATALEN(skb->data);
440 _put_byte(&p, SEND_DATA_B3_REQ);
441 _put_slice(&p, skb->data, len);
442 _put_slice(&p, skb->data + len, dlen);
443 } else {
444 _put_byte(&p, SEND_MESSAGE);
445 _put_slice(&p, skb->data, len);
446 }
447 txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf;
448 #ifdef CONFIG_C4_DEBUG
449 printk(KERN_DEBUG "%s: tx put msg len=%d\n", card->name, txlen);
450 #endif
451 } else {
452 txlen = skb->len-2;
453 #ifdef CONFIG_C4_POLLDEBUG
454 if (skb->data[2] == SEND_POLLACK)
455 printk(KERN_INFO "%s: ack to c4\n", card->name);
456 #endif
457 #ifdef CONFIG_C4_DEBUG
458 printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
459 card->name, skb->data[2], txlen);
460 #endif
461 memcpy(dma->sendbuf.dmabuf, skb->data+2, 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 CONFIG_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 CONFIG_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, struct pt_regs *regs)
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
731 skb = alloc_skb(15, GFP_ATOMIC);
732 if (!skb) {
733 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
734 card->name);
735 return;
736 }
737 p = skb->data;
738 _put_byte(&p, 0);
739 _put_byte(&p, 0);
740 _put_byte(&p, SEND_INIT);
741 _put_word(&p, CAPI_MAXAPPL);
742 _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
743 _put_word(&p, card->cardnr - 1);
744 skb_put(skb, (u8 *)p - (u8 *)skb->data);
745
746 skb_queue_tail(&card->dma->send_queue, skb);
747 c4_dispatch_tx(card);
748 }
749
750 static int queue_sendconfigword(avmcard *card, u32 val)
751 {
752 struct sk_buff *skb;
753 void *p;
754
755 skb = alloc_skb(3+4, GFP_ATOMIC);
756 if (!skb) {
757 printk(KERN_CRIT "%s: no memory, send config\n",
758 card->name);
759 return -ENOMEM;
760 }
761 p = skb->data;
762 _put_byte(&p, 0);
763 _put_byte(&p, 0);
764 _put_byte(&p, SEND_CONFIG);
765 _put_word(&p, val);
766 skb_put(skb, (u8 *)p - (u8 *)skb->data);
767
768 skb_queue_tail(&card->dma->send_queue, skb);
769 c4_dispatch_tx(card);
770 return 0;
771 }
772
773 static int queue_sendconfig(avmcard *card, char cval[4])
774 {
775 struct sk_buff *skb;
776 unsigned long flags;
777 void *p;
778
779 skb = alloc_skb(3+4, GFP_ATOMIC);
780 if (!skb) {
781 printk(KERN_CRIT "%s: no memory, send config\n",
782 card->name);
783 return -ENOMEM;
784 }
785 p = skb->data;
786 _put_byte(&p, 0);
787 _put_byte(&p, 0);
788 _put_byte(&p, SEND_CONFIG);
789 _put_byte(&p, cval[0]);
790 _put_byte(&p, cval[1]);
791 _put_byte(&p, cval[2]);
792 _put_byte(&p, cval[3]);
793 skb_put(skb, (u8 *)p - (u8 *)skb->data);
794
795 skb_queue_tail(&card->dma->send_queue, skb);
796
797 spin_lock_irqsave(&card->lock, flags);
798 c4_dispatch_tx(card);
799 spin_unlock_irqrestore(&card->lock, flags);
800 return 0;
801 }
802
803 static int c4_send_config(avmcard *card, capiloaddatapart * config)
804 {
805 u8 val[4];
806 unsigned char *dp;
807 u_int left;
808 int retval;
809
810 if ((retval = queue_sendconfigword(card, 1)) != 0)
811 return retval;
812 if ((retval = queue_sendconfigword(card, config->len)) != 0)
813 return retval;
814
815 dp = config->data;
816 left = config->len;
817 while (left >= sizeof(u32)) {
818 if (config->user) {
819 if (copy_from_user(val, dp, sizeof(val)))
820 return -EFAULT;
821 } else {
822 memcpy(val, dp, sizeof(val));
823 }
824 if ((retval = queue_sendconfig(card, val)) != 0)
825 return retval;
826 left -= sizeof(val);
827 dp += sizeof(val);
828 }
829 if (left) {
830 memset(val, 0, sizeof(val));
831 if (config->user) {
832 if (copy_from_user(&val, dp, left))
833 return -EFAULT;
834 } else {
835 memcpy(&val, dp, left);
836 }
837 if ((retval = queue_sendconfig(card, val)) != 0)
838 return retval;
839 }
840
841 return 0;
842 }
843
844 static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
845 {
846 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
847 avmcard *card = cinfo->card;
848 int retval;
849
850 if ((retval = c4_load_t4file(card, &data->firmware))) {
851 printk(KERN_ERR "%s: failed to load t4file!!\n",
852 card->name);
853 c4_reset(card);
854 return retval;
855 }
856
857 card->csr = 0;
858 c4outmeml(card->mbase+MBOX_UP_LEN, 0);
859 c4outmeml(card->mbase+MBOX_DOWN_LEN, 0);
860 c4outmeml(card->mbase+DOORBELL, DBELL_INIT);
861 mdelay(1);
862 c4outmeml(card->mbase+DOORBELL,
863 DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
864
865 c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08);
866
867 card->dma->recvlen = 0;
868 c4outmeml(card->mbase+MBOX_UP_ADDR, card->dma->recvbuf.dmaaddr);
869 c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size);
870 c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
871
872 if (data->configuration.len > 0 && data->configuration.data) {
873 retval = c4_send_config(card, &data->configuration);
874 if (retval) {
875 printk(KERN_ERR "%s: failed to set config!!\n",
876 card->name);
877 c4_reset(card);
878 return retval;
879 }
880 }
881
882 c4_send_init(card);
883
884 return 0;
885 }
886
887
888 void c4_reset_ctr(struct capi_ctr *ctrl)
889 {
890 avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
891 avmctrl_info *cinfo;
892 u_int i;
893 unsigned long flags;
894
895 spin_lock_irqsave(&card->lock, flags);
896
897 c4_reset(card);
898
899 spin_unlock_irqrestore(&card->lock, flags);
900
901 for (i=0; i < card->nr_controllers; i++) {
902 cinfo = &card->ctrlinfo[i];
903 memset(cinfo->version, 0, sizeof(cinfo->version));
904 capi_ctr_reseted(&cinfo->capi_ctrl);
905 }
906 card->nlogcontr = 0;
907 }
908
909 static void c4_remove(struct pci_dev *pdev)
910 {
911 avmcard *card = pci_get_drvdata(pdev);
912 avmctrl_info *cinfo;
913 u_int i;
914
915 if (!card)
916 return;
917
918 c4_reset(card);
919
920 for (i=0; i < card->nr_controllers; i++) {
921 cinfo = &card->ctrlinfo[i];
922 detach_capi_ctr(&cinfo->capi_ctrl);
923 }
924
925 free_irq(card->irq, card);
926 iounmap(card->mbase);
927 release_region(card->port, AVMB1_PORTLEN);
928 avmcard_dma_free(card->dma);
929 pci_set_drvdata(pdev, NULL);
930 b1_free_card(card);
931 }
932
933 /* ------------------------------------------------------------- */
934
935
936 void c4_register_appl(struct capi_ctr *ctrl,
937 u16 appl,
938 capi_register_params *rp)
939 {
940 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
941 avmcard *card = cinfo->card;
942 struct sk_buff *skb;
943 int want = rp->level3cnt;
944 unsigned long flags;
945 int nconn;
946 void *p;
947
948 if (ctrl->cnr == card->cardnr) {
949
950 if (want > 0) nconn = want;
951 else nconn = ctrl->profile.nbchannel * 4 * -want;
952 if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
953
954 skb = alloc_skb(23, GFP_ATOMIC);
955 if (!skb) {
956 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
957 card->name);
958 return;
959 }
960 p = skb->data;
961 _put_byte(&p, 0);
962 _put_byte(&p, 0);
963 _put_byte(&p, SEND_REGISTER);
964 _put_word(&p, appl);
965 _put_word(&p, 1024 * (nconn+1));
966 _put_word(&p, nconn);
967 _put_word(&p, rp->datablkcnt);
968 _put_word(&p, rp->datablklen);
969 skb_put(skb, (u8 *)p - (u8 *)skb->data);
970
971 skb_queue_tail(&card->dma->send_queue, skb);
972
973 spin_lock_irqsave(&card->lock, flags);
974 c4_dispatch_tx(card);
975 spin_unlock_irqrestore(&card->lock, flags);
976 }
977 }
978
979 /* ------------------------------------------------------------- */
980
981 void c4_release_appl(struct capi_ctr *ctrl, u16 appl)
982 {
983 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
984 avmcard *card = cinfo->card;
985 unsigned long flags;
986 struct sk_buff *skb;
987 void *p;
988
989 capilib_release_appl(&cinfo->ncci_head, appl);
990
991 if (ctrl->cnr == card->cardnr) {
992 skb = alloc_skb(7, GFP_ATOMIC);
993 if (!skb) {
994 printk(KERN_CRIT "%s: no memory, lost release appl.\n",
995 card->name);
996 return;
997 }
998 p = skb->data;
999 _put_byte(&p, 0);
1000 _put_byte(&p, 0);
1001 _put_byte(&p, SEND_RELEASE);
1002 _put_word(&p, appl);
1003
1004 skb_put(skb, (u8 *)p - (u8 *)skb->data);
1005 skb_queue_tail(&card->dma->send_queue, skb);
1006 spin_lock_irqsave(&card->lock, flags);
1007 c4_dispatch_tx(card);
1008 spin_unlock_irqrestore(&card->lock, flags);
1009 }
1010 }
1011
1012 /* ------------------------------------------------------------- */
1013
1014
1015 static u16 c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
1016 {
1017 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1018 avmcard *card = cinfo->card;
1019 u16 retval = CAPI_NOERROR;
1020 unsigned long flags;
1021
1022 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
1023 retval = capilib_data_b3_req(&cinfo->ncci_head,
1024 CAPIMSG_APPID(skb->data),
1025 CAPIMSG_NCCI(skb->data),
1026 CAPIMSG_MSGID(skb->data));
1027 }
1028 if (retval == CAPI_NOERROR) {
1029 skb_queue_tail(&card->dma->send_queue, skb);
1030 spin_lock_irqsave(&card->lock, flags);
1031 c4_dispatch_tx(card);
1032 spin_unlock_irqrestore(&card->lock, flags);
1033 }
1034 return retval;
1035 }
1036
1037 /* ------------------------------------------------------------- */
1038
1039 static char *c4_procinfo(struct capi_ctr *ctrl)
1040 {
1041 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1042
1043 if (!cinfo)
1044 return "";
1045 sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
1046 cinfo->cardname[0] ? cinfo->cardname : "-",
1047 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
1048 cinfo->card ? cinfo->card->port : 0x0,
1049 cinfo->card ? cinfo->card->irq : 0,
1050 cinfo->card ? cinfo->card->membase : 0
1051 );
1052 return cinfo->infobuf;
1053 }
1054
1055 static int c4_read_proc(char *page, char **start, off_t off,
1056 int count, int *eof, struct capi_ctr *ctrl)
1057 {
1058 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1059 avmcard *card = cinfo->card;
1060 u8 flag;
1061 int len = 0;
1062 char *s;
1063
1064 len += sprintf(page+len, "%-16s %s\n", "name", card->name);
1065 len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
1066 len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
1067 len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
1068 switch (card->cardtype) {
1069 case avm_b1isa: s = "B1 ISA"; break;
1070 case avm_b1pci: s = "B1 PCI"; break;
1071 case avm_b1pcmcia: s = "B1 PCMCIA"; break;
1072 case avm_m1: s = "M1"; break;
1073 case avm_m2: s = "M2"; break;
1074 case avm_t1isa: s = "T1 ISA (HEMA)"; break;
1075 case avm_t1pci: s = "T1 PCI"; break;
1076 case avm_c4: s = "C4"; break;
1077 case avm_c2: s = "C2"; break;
1078 default: s = "???"; break;
1079 }
1080 len += sprintf(page+len, "%-16s %s\n", "type", s);
1081 if ((s = cinfo->version[VER_DRIVER]) != 0)
1082 len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
1083 if ((s = cinfo->version[VER_CARDTYPE]) != 0)
1084 len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
1085 if ((s = cinfo->version[VER_SERIAL]) != 0)
1086 len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
1087
1088 if (card->cardtype != avm_m1) {
1089 flag = ((u8 *)(ctrl->profile.manu))[3];
1090 if (flag)
1091 len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
1092 "protocol",
1093 (flag & 0x01) ? " DSS1" : "",
1094 (flag & 0x02) ? " CT1" : "",
1095 (flag & 0x04) ? " VN3" : "",
1096 (flag & 0x08) ? " NI1" : "",
1097 (flag & 0x10) ? " AUSTEL" : "",
1098 (flag & 0x20) ? " ESS" : "",
1099 (flag & 0x40) ? " 1TR6" : ""
1100 );
1101 }
1102 if (card->cardtype != avm_m1) {
1103 flag = ((u8 *)(ctrl->profile.manu))[5];
1104 if (flag)
1105 len += sprintf(page+len, "%-16s%s%s%s%s\n",
1106 "linetype",
1107 (flag & 0x01) ? " point to point" : "",
1108 (flag & 0x02) ? " point to multipoint" : "",
1109 (flag & 0x08) ? " leased line without D-channel" : "",
1110 (flag & 0x04) ? " leased line with D-channel" : ""
1111 );
1112 }
1113 len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
1114
1115 if (off+count >= len)
1116 *eof = 1;
1117 if (len < off)
1118 return 0;
1119 *start = page + off;
1120 return ((count < len-off) ? count : len-off);
1121 }
1122
1123 /* ------------------------------------------------------------- */
1124
1125 static int c4_add_card(struct capicardparams *p, struct pci_dev *dev,
1126 int nr_controllers)
1127 {
1128 avmcard *card;
1129 avmctrl_info *cinfo;
1130 int retval;
1131 int i;
1132
1133 card = b1_alloc_card(nr_controllers);
1134 if (!card) {
1135 printk(KERN_WARNING "c4: no memory.\n");
1136 retval = -ENOMEM;
1137 goto err;
1138 }
1139 card->dma = avmcard_dma_alloc("c4", dev, 2048+128, 2048+128);
1140 if (!card->dma) {
1141 printk(KERN_WARNING "c4: no memory.\n");
1142 retval = -ENOMEM;
1143 goto err_free;
1144 }
1145
1146 sprintf(card->name, "c%d-%x", nr_controllers, p->port);
1147 card->port = p->port;
1148 card->irq = p->irq;
1149 card->membase = p->membase;
1150 card->cardtype = (nr_controllers == 4) ? avm_c4 : avm_c2;
1151
1152 if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
1153 printk(KERN_WARNING "c4: ports 0x%03x-0x%03x in use.\n",
1154 card->port, card->port + AVMB1_PORTLEN);
1155 retval = -EBUSY;
1156 goto err_free_dma;
1157 }
1158
1159 card->mbase = ioremap(card->membase, 128);
1160 if (card->mbase == 0) {
1161 printk(KERN_NOTICE "c4: can't remap memory at 0x%lx\n",
1162 card->membase);
1163 retval = -EIO;
1164 goto err_release_region;
1165 }
1166
1167 retval = c4_detect(card);
1168 if (retval != 0) {
1169 printk(KERN_NOTICE "c4: NO card at 0x%x error(%d)\n",
1170 card->port, retval);
1171 retval = -EIO;
1172 goto err_unmap;
1173 }
1174 c4_reset(card);
1175
1176 retval = request_irq(card->irq, c4_interrupt, SA_SHIRQ, card->name, card);
1177 if (retval) {
1178 printk(KERN_ERR "c4: unable to get IRQ %d.\n",card->irq);
1179 retval = -EBUSY;
1180 goto err_unmap;
1181 }
1182
1183 for (i=0; i < nr_controllers ; i++) {
1184 cinfo = &card->ctrlinfo[i];
1185 cinfo->capi_ctrl.owner = THIS_MODULE;
1186 cinfo->capi_ctrl.driver_name = "c4";
1187 cinfo->capi_ctrl.driverdata = cinfo;
1188 cinfo->capi_ctrl.register_appl = c4_register_appl;
1189 cinfo->capi_ctrl.release_appl = c4_release_appl;
1190 cinfo->capi_ctrl.send_message = c4_send_message;
1191 cinfo->capi_ctrl.load_firmware = c4_load_firmware;
1192 cinfo->capi_ctrl.reset_ctr = c4_reset_ctr;
1193 cinfo->capi_ctrl.procinfo = c4_procinfo;
1194 cinfo->capi_ctrl.ctr_read_proc = c4_read_proc;
1195 strcpy(cinfo->capi_ctrl.name, card->name);
1196
1197 retval = attach_capi_ctr(&cinfo->capi_ctrl);
1198 if (retval) {
1199 printk(KERN_ERR "c4: attach controller failed (%d).\n", i);
1200 for (i--; i >= 0; i--) {
1201 cinfo = &card->ctrlinfo[i];
1202 detach_capi_ctr(&cinfo->capi_ctrl);
1203 }
1204 goto err_free_irq;
1205 }
1206 if (i == 0)
1207 card->cardnr = cinfo->capi_ctrl.cnr;
1208 }
1209
1210 printk(KERN_INFO "c4: AVM C%d at i/o %#x, irq %d, mem %#lx\n",
1211 nr_controllers, card->port, card->irq,
1212 card->membase);
1213 pci_set_drvdata(dev, card);
1214 return 0;
1215
1216 err_free_irq:
1217 free_irq(card->irq, card);
1218 err_unmap:
1219 iounmap(card->mbase);
1220 err_release_region:
1221 release_region(card->port, AVMB1_PORTLEN);
1222 err_free_dma:
1223 avmcard_dma_free(card->dma);
1224 err_free:
1225 b1_free_card(card);
1226 err:
1227 return retval;
1228 }
1229
1230 /* ------------------------------------------------------------- */
1231
1232 static int __devinit c4_probe(struct pci_dev *dev,
1233 const struct pci_device_id *ent)
1234 {
1235 int nr = ent->driver_data;
1236 int retval = 0;
1237 struct capicardparams param;
1238
1239 if (pci_enable_device(dev) < 0) {
1240 printk(KERN_ERR "c4: failed to enable AVM-C%d\n", nr);
1241 return -ENODEV;
1242 }
1243 pci_set_master(dev);
1244
1245 param.port = pci_resource_start(dev, 1);
1246 param.irq = dev->irq;
1247 param.membase = pci_resource_start(dev, 0);
1248
1249 printk(KERN_INFO "c4: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#x\n",
1250 nr, param.port, param.irq, param.membase);
1251
1252 retval = c4_add_card(&param, dev, nr);
1253 if (retval != 0) {
1254 printk(KERN_ERR "c4: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n",
1255 nr, param.port, param.irq, param.membase);
1256 return -ENODEV;
1257 }
1258 return 0;
1259 }
1260
1261 static struct pci_driver c4_pci_driver = {
1262 .name = "c4",
1263 .id_table = c4_pci_tbl,
1264 .probe = c4_probe,
1265 .remove = c4_remove,
1266 };
1267
1268 static struct capi_driver capi_driver_c2 = {
1269 .name = "c2",
1270 .revision = "1.0",
1271 };
1272
1273 static struct capi_driver capi_driver_c4 = {
1274 .name = "c4",
1275 .revision = "1.0",
1276 };
1277
1278 static int __init c4_init(void)
1279 {
1280 char *p;
1281 char rev[32];
1282 int err;
1283
1284 if ((p = strchr(revision, ':')) != 0 && p[1]) {
1285 strlcpy(rev, p + 2, 32);
1286 if ((p = strchr(rev, '$')) != 0 && p > rev)
1287 *(p-1) = 0;
1288 } else
1289 strcpy(rev, "1.0");
1290
1291 err = pci_register_driver(&c4_pci_driver);
1292 if (!err) {
1293 strlcpy(capi_driver_c2.revision, rev, 32);
1294 register_capi_driver(&capi_driver_c2);
1295 strlcpy(capi_driver_c4.revision, rev, 32);
1296 register_capi_driver(&capi_driver_c4);
1297 printk(KERN_INFO "c4: revision %s\n", rev);
1298 }
1299 return err;
1300 }
1301
1302 static void __exit c4_exit(void)
1303 {
1304 unregister_capi_driver(&capi_driver_c2);
1305 unregister_capi_driver(&capi_driver_c4);
1306 pci_unregister_driver(&c4_pci_driver);
1307 }
1308
1309 module_init(c4_init);
1310 module_exit(c4_exit);
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