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c4.c
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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 <[email protected]>
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/proc_fs.h>
15 #include <linux/seq_file.h>
16 #include <linux/skbuff.h>
17 #include <linux/delay.h>
18 #include <linux/mm.h>
19 #include <linux/interrupt.h>
20 #include <linux/ioport.h>
21 #include <linux/pci.h>
22 #include <linux/capi.h>
23 #include <linux/kernelcapi.h>
24 #include <linux/init.h>
25 #include <linux/gfp.h>
26 #include <asm/io.h>
27 #include <asm/uaccess.h>
28 #include <linux/netdevice.h>
29 #include <linux/isdn/capicmd.h>
30 #include <linux/isdn/capiutil.h>
31 #include <linux/isdn/capilli.h>
32 #include "avmcard.h"
33 
34 #undef AVM_C4_DEBUG
35 #undef AVM_C4_POLLDEBUG
36 
37 /* ------------------------------------------------------------- */
38 
39 static char *revision = "$Revision: 1.1.2.2 $";
40 
41 /* ------------------------------------------------------------- */
42 
43 static bool suppress_pollack;
44 
45 static struct pci_device_id c4_pci_tbl[] = {
46  { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, 0, 0, (unsigned long)4 },
47  { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2, 0, 0, (unsigned long)2 },
48  { } /* Terminating entry */
49 };
50 
51 MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
52 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM C2/C4 cards");
53 MODULE_AUTHOR("Carsten Paeth");
54 MODULE_LICENSE("GPL");
55 module_param(suppress_pollack, bool, 0);
56 
57 /* ------------------------------------------------------------- */
58 
59 static void c4_dispatch_tx(avmcard *card);
60 
61 /* ------------------------------------------------------------- */
62 
63 #define DC21285_DRAM_A0MR 0x40000000
64 #define DC21285_DRAM_A1MR 0x40004000
65 #define DC21285_DRAM_A2MR 0x40008000
66 #define DC21285_DRAM_A3MR 0x4000C000
67 
68 #define CAS_OFFSET 0x88
69 
70 #define DC21285_ARMCSR_BASE 0x42000000
71 
72 #define PCI_OUT_INT_STATUS 0x30
73 #define PCI_OUT_INT_MASK 0x34
74 #define MAILBOX_0 0x50
75 #define MAILBOX_1 0x54
76 #define MAILBOX_2 0x58
77 #define MAILBOX_3 0x5C
78 #define DOORBELL 0x60
79 #define DOORBELL_SETUP 0x64
80 
81 #define CHAN_1_CONTROL 0x90
82 #define CHAN_2_CONTROL 0xB0
83 #define DRAM_TIMING 0x10C
84 #define DRAM_ADDR_SIZE_0 0x110
85 #define DRAM_ADDR_SIZE_1 0x114
86 #define DRAM_ADDR_SIZE_2 0x118
87 #define DRAM_ADDR_SIZE_3 0x11C
88 #define SA_CONTROL 0x13C
89 #define XBUS_CYCLE 0x148
90 #define XBUS_STROBE 0x14C
91 #define DBELL_PCI_MASK 0x150
92 #define DBELL_SA_MASK 0x154
93 
94 #define SDRAM_SIZE 0x1000000
95 
96 /* ------------------------------------------------------------- */
97 
98 #define MBOX_PEEK_POKE MAILBOX_0
99 
100 #define DBELL_ADDR 0x01
101 #define DBELL_DATA 0x02
102 #define DBELL_RNWR 0x40
103 #define DBELL_INIT 0x80
104 
105 /* ------------------------------------------------------------- */
106 
107 #define MBOX_UP_ADDR MAILBOX_0
108 #define MBOX_UP_LEN MAILBOX_1
109 #define MBOX_DOWN_ADDR MAILBOX_2
110 #define MBOX_DOWN_LEN MAILBOX_3
111 
112 #define DBELL_UP_HOST 0x00000100
113 #define DBELL_UP_ARM 0x00000200
114 #define DBELL_DOWN_HOST 0x00000400
115 #define DBELL_DOWN_ARM 0x00000800
116 #define DBELL_RESET_HOST 0x40000000
117 #define DBELL_RESET_ARM 0x80000000
118 
119 /* ------------------------------------------------------------- */
120 
121 #define DRAM_TIMING_DEF 0x001A01A5
122 #define DRAM_AD_SZ_DEF0 0x00000045
123 #define DRAM_AD_SZ_NULL 0x00000000
124 
125 #define SA_CTL_ALLRIGHT 0x64AA0271
126 
127 #define INIT_XBUS_CYCLE 0x100016DB
128 #define INIT_XBUS_STROBE 0xF1F1F1F1
129 
130 /* ------------------------------------------------------------- */
131 
132 #define RESET_TIMEOUT (15 * HZ) /* 15 sec */
133 #define PEEK_POKE_TIMEOUT (HZ / 10) /* 0.1 sec */
134 
135 /* ------------------------------------------------------------- */
136 
137 #define c4outmeml(addr, value) writel(value, addr)
138 #define c4inmeml(addr) readl(addr)
139 #define c4outmemw(addr, value) writew(value, addr)
140 #define c4inmemw(addr) readw(addr)
141 #define c4outmemb(addr, value) writeb(value, addr)
142 #define c4inmemb(addr) readb(addr)
143 
144 /* ------------------------------------------------------------- */
145 
146 static inline int wait_for_doorbell(avmcard *card, unsigned long t)
147 {
148  unsigned long stop;
149 
150  stop = jiffies + t;
151  while (c4inmeml(card->mbase + DOORBELL) != 0xffffffff) {
152  if (!time_before(jiffies, stop))
153  return -1;
154  mb();
155  }
156  return 0;
157 }
158 
159 static int c4_poke(avmcard *card, unsigned long off, unsigned long value)
160 {
161 
162  if (wait_for_doorbell(card, HZ / 10) < 0)
163  return -1;
164 
165  c4outmeml(card->mbase + MBOX_PEEK_POKE, off);
166  c4outmeml(card->mbase + DOORBELL, DBELL_ADDR);
167 
168  if (wait_for_doorbell(card, HZ / 10) < 0)
169  return -1;
170 
171  c4outmeml(card->mbase + MBOX_PEEK_POKE, value);
172  c4outmeml(card->mbase + DOORBELL, DBELL_DATA | DBELL_ADDR);
173 
174  return 0;
175 }
176 
177 static int c4_peek(avmcard *card, unsigned long off, unsigned long *valuep)
178 {
179  if (wait_for_doorbell(card, HZ / 10) < 0)
180  return -1;
181 
182  c4outmeml(card->mbase + MBOX_PEEK_POKE, off);
183  c4outmeml(card->mbase + DOORBELL, DBELL_RNWR | DBELL_ADDR);
184 
185  if (wait_for_doorbell(card, HZ / 10) < 0)
186  return -1;
187 
188  *valuep = c4inmeml(card->mbase + MBOX_PEEK_POKE);
189 
190  return 0;
191 }
192 
193 /* ------------------------------------------------------------- */
194 
195 static int c4_load_t4file(avmcard *card, capiloaddatapart *t4file)
196 {
197  u32 val;
198  unsigned char *dp;
199  u_int left;
200  u32 loadoff = 0;
201 
202  dp = t4file->data;
203  left = t4file->len;
204  while (left >= sizeof(u32)) {
205  if (t4file->user) {
206  if (copy_from_user(&val, dp, sizeof(val)))
207  return -EFAULT;
208  } else {
209  memcpy(&val, dp, sizeof(val));
210  }
211  if (c4_poke(card, loadoff, val)) {
212  printk(KERN_ERR "%s: corrupted firmware file ?\n",
213  card->name);
214  return -EIO;
215  }
216  left -= sizeof(u32);
217  dp += sizeof(u32);
218  loadoff += sizeof(u32);
219  }
220  if (left) {
221  val = 0;
222  if (t4file->user) {
223  if (copy_from_user(&val, dp, left))
224  return -EFAULT;
225  } else {
226  memcpy(&val, dp, left);
227  }
228  if (c4_poke(card, loadoff, val)) {
229  printk(KERN_ERR "%s: corrupted firmware file ?\n",
230  card->name);
231  return -EIO;
232  }
233  }
234  return 0;
235 }
236 
237 /* ------------------------------------------------------------- */
238 
239 static inline void _put_byte(void **pp, u8 val)
240 {
241  u8 *s = *pp;
242  *s++ = val;
243  *pp = s;
244 }
245 
246 static inline void _put_word(void **pp, u32 val)
247 {
248  u8 *s = *pp;
249  *s++ = val & 0xff;
250  *s++ = (val >> 8) & 0xff;
251  *s++ = (val >> 16) & 0xff;
252  *s++ = (val >> 24) & 0xff;
253  *pp = s;
254 }
255 
256 static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len)
257 {
258  unsigned i = len;
259  _put_word(pp, i);
260  while (i-- > 0)
261  _put_byte(pp, *dp++);
262 }
263 
264 static inline u8 _get_byte(void **pp)
265 {
266  u8 *s = *pp;
267  u8 val;
268  val = *s++;
269  *pp = s;
270  return val;
271 }
272 
273 static inline u32 _get_word(void **pp)
274 {
275  u8 *s = *pp;
276  u32 val;
277  val = *s++;
278  val |= (*s++ << 8);
279  val |= (*s++ << 16);
280  val |= (*s++ << 24);
281  *pp = s;
282  return val;
283 }
284 
285 static inline u32 _get_slice(void **pp, unsigned char *dp)
286 {
287  unsigned int len, i;
288 
289  len = i = _get_word(pp);
290  while (i-- > 0) *dp++ = _get_byte(pp);
291  return len;
292 }
293 
294 /* ------------------------------------------------------------- */
295 
296 static void c4_reset(avmcard *card)
297 {
298  unsigned long stop;
299 
300  c4outmeml(card->mbase + DOORBELL, DBELL_RESET_ARM);
301 
302  stop = jiffies + HZ * 10;
303  while (c4inmeml(card->mbase + DOORBELL) != 0xffffffff) {
304  if (!time_before(jiffies, stop))
305  return;
306  c4outmeml(card->mbase + DOORBELL, DBELL_ADDR);
307  mb();
308  }
309 
310  c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
311  c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
312 }
313 
314 /* ------------------------------------------------------------- */
315 
316 static int c4_detect(avmcard *card)
317 {
318  unsigned long stop, dummy;
319 
320  c4outmeml(card->mbase + PCI_OUT_INT_MASK, 0x0c);
321  if (c4inmeml(card->mbase + PCI_OUT_INT_MASK) != 0x0c)
322  return 1;
323 
324  c4outmeml(card->mbase + DOORBELL, DBELL_RESET_ARM);
325 
326  stop = jiffies + HZ * 10;
327  while (c4inmeml(card->mbase + DOORBELL) != 0xffffffff) {
328  if (!time_before(jiffies, stop))
329  return 2;
330  c4outmeml(card->mbase + DOORBELL, DBELL_ADDR);
331  mb();
332  }
333 
334  c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
335  c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
336 
337  c4outmeml(card->mbase + MAILBOX_0, 0x55aa55aa);
338  if (c4inmeml(card->mbase + MAILBOX_0) != 0x55aa55aa) return 3;
339 
340  c4outmeml(card->mbase + MAILBOX_0, 0xaa55aa55);
341  if (c4inmeml(card->mbase + MAILBOX_0) != 0xaa55aa55) return 4;
342 
343  if (c4_poke(card, DC21285_ARMCSR_BASE + DBELL_SA_MASK, 0)) return 5;
344  if (c4_poke(card, DC21285_ARMCSR_BASE + DBELL_PCI_MASK, 0)) return 6;
345  if (c4_poke(card, DC21285_ARMCSR_BASE + SA_CONTROL, SA_CTL_ALLRIGHT))
346  return 7;
347  if (c4_poke(card, DC21285_ARMCSR_BASE + XBUS_CYCLE, INIT_XBUS_CYCLE))
348  return 8;
349  if (c4_poke(card, DC21285_ARMCSR_BASE + XBUS_STROBE, INIT_XBUS_STROBE))
350  return 8;
351  if (c4_poke(card, DC21285_ARMCSR_BASE + DRAM_TIMING, 0)) return 9;
352 
353  mdelay(1);
354 
355  if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10;
356  if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11;
357  if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12;
358  if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13;
359 
360  if (c4_poke(card, DC21285_DRAM_A0MR + CAS_OFFSET, 0)) return 14;
361  if (c4_poke(card, DC21285_DRAM_A1MR + CAS_OFFSET, 0)) return 15;
362  if (c4_poke(card, DC21285_DRAM_A2MR + CAS_OFFSET, 0)) return 16;
363  if (c4_poke(card, DC21285_DRAM_A3MR + CAS_OFFSET, 0)) return 17;
364 
365  mdelay(1);
366 
367  if (c4_poke(card, DC21285_ARMCSR_BASE + DRAM_TIMING, DRAM_TIMING_DEF))
368  return 18;
369 
370  if (c4_poke(card, DC21285_ARMCSR_BASE + DRAM_ADDR_SIZE_0, DRAM_AD_SZ_DEF0))
371  return 19;
372  if (c4_poke(card, DC21285_ARMCSR_BASE + DRAM_ADDR_SIZE_1, DRAM_AD_SZ_NULL))
373  return 20;
374  if (c4_poke(card, DC21285_ARMCSR_BASE + DRAM_ADDR_SIZE_2, DRAM_AD_SZ_NULL))
375  return 21;
376  if (c4_poke(card, DC21285_ARMCSR_BASE + DRAM_ADDR_SIZE_3, DRAM_AD_SZ_NULL))
377  return 22;
378 
379  /* Transputer test */
380 
381  if (c4_poke(card, 0x000000, 0x11111111)
382  || c4_poke(card, 0x400000, 0x22222222)
383  || c4_poke(card, 0x800000, 0x33333333)
384  || c4_poke(card, 0xC00000, 0x44444444))
385  return 23;
386 
387  if (c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111
388  || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222
389  || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333
390  || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444)
391  return 24;
392 
393  if (c4_poke(card, 0x000000, 0x55555555)
394  || c4_poke(card, 0x400000, 0x66666666)
395  || c4_poke(card, 0x800000, 0x77777777)
396  || c4_poke(card, 0xC00000, 0x88888888))
397  return 25;
398 
399  if (c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555
400  || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666
401  || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777
402  || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888)
403  return 26;
404 
405  return 0;
406 }
407 
408 /* ------------------------------------------------------------- */
409 
410 static void c4_dispatch_tx(avmcard *card)
411 {
412  avmcard_dmainfo *dma = card->dma;
413  struct sk_buff *skb;
414  u8 cmd, subcmd;
415  u16 len;
416  u32 txlen;
417  void *p;
418 
419 
420  if (card->csr & DBELL_DOWN_ARM) { /* tx busy */
421  return;
422  }
423 
424  skb = skb_dequeue(&dma->send_queue);
425  if (!skb) {
426 #ifdef AVM_C4_DEBUG
427  printk(KERN_DEBUG "%s: tx underrun\n", card->name);
428 #endif
429  return;
430  }
431 
432  len = CAPIMSG_LEN(skb->data);
433 
434  if (len) {
435  cmd = CAPIMSG_COMMAND(skb->data);
436  subcmd = CAPIMSG_SUBCOMMAND(skb->data);
437 
438  p = dma->sendbuf.dmabuf;
439 
440  if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
441  u16 dlen = CAPIMSG_DATALEN(skb->data);
442  _put_byte(&p, SEND_DATA_B3_REQ);
443  _put_slice(&p, skb->data, len);
444  _put_slice(&p, skb->data + len, dlen);
445  } else {
446  _put_byte(&p, SEND_MESSAGE);
447  _put_slice(&p, skb->data, len);
448  }
449  txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf;
450 #ifdef AVM_C4_DEBUG
451  printk(KERN_DEBUG "%s: tx put msg len=%d\n", card->name, txlen);
452 #endif
453  } else {
454  txlen = skb->len - 2;
455 #ifdef AVM_C4_POLLDEBUG
456  if (skb->data[2] == SEND_POLLACK)
457  printk(KERN_INFO "%s: ack to c4\n", card->name);
458 #endif
459 #ifdef AVM_C4_DEBUG
460  printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
461  card->name, skb->data[2], txlen);
462 #endif
463  skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf,
464  skb->len - 2);
465  }
466  txlen = (txlen + 3) & ~3;
467 
468  c4outmeml(card->mbase + MBOX_DOWN_ADDR, dma->sendbuf.dmaaddr);
469  c4outmeml(card->mbase + MBOX_DOWN_LEN, txlen);
470 
471  card->csr |= DBELL_DOWN_ARM;
472 
473  c4outmeml(card->mbase + DOORBELL, DBELL_DOWN_ARM);
474 
475  dev_kfree_skb_any(skb);
476 }
477 
478 /* ------------------------------------------------------------- */
479 
480 static void queue_pollack(avmcard *card)
481 {
482  struct sk_buff *skb;
483  void *p;
484 
485  skb = alloc_skb(3, GFP_ATOMIC);
486  if (!skb) {
487  printk(KERN_CRIT "%s: no memory, lost poll ack\n",
488  card->name);
489  return;
490  }
491  p = skb->data;
492  _put_byte(&p, 0);
493  _put_byte(&p, 0);
494  _put_byte(&p, SEND_POLLACK);
495  skb_put(skb, (u8 *)p - (u8 *)skb->data);
496 
497  skb_queue_tail(&card->dma->send_queue, skb);
498  c4_dispatch_tx(card);
499 }
500 
501 /* ------------------------------------------------------------- */
502 
503 static void c4_handle_rx(avmcard *card)
504 {
505  avmcard_dmainfo *dma = card->dma;
506  struct capi_ctr *ctrl;
507  avmctrl_info *cinfo;
508  struct sk_buff *skb;
509  void *p = dma->recvbuf.dmabuf;
510  u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
511  u8 b1cmd = _get_byte(&p);
512  u32 cidx;
513 
514 
515 #ifdef AVM_C4_DEBUG
516  printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name,
517  b1cmd, (unsigned long)dma->recvlen);
518 #endif
519 
520  switch (b1cmd) {
521  case RECEIVE_DATA_B3_IND:
522 
523  ApplId = (unsigned) _get_word(&p);
524  MsgLen = _get_slice(&p, card->msgbuf);
525  DataB3Len = _get_slice(&p, card->databuf);
526  cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
527  if (cidx >= card->nlogcontr) cidx = 0;
528  ctrl = &card->ctrlinfo[cidx].capi_ctrl;
529 
530  if (MsgLen < 30) { /* not CAPI 64Bit */
531  memset(card->msgbuf + MsgLen, 0, 30 - MsgLen);
532  MsgLen = 30;
533  CAPIMSG_SETLEN(card->msgbuf, 30);
534  }
535  if (!(skb = alloc_skb(DataB3Len + MsgLen, GFP_ATOMIC))) {
536  printk(KERN_ERR "%s: incoming packet dropped\n",
537  card->name);
538  } else {
539  memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
540  memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
541  capi_ctr_handle_message(ctrl, ApplId, skb);
542  }
543  break;
544 
545  case RECEIVE_MESSAGE:
546 
547  ApplId = (unsigned) _get_word(&p);
548  MsgLen = _get_slice(&p, card->msgbuf);
549  cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
550  if (cidx >= card->nlogcontr) cidx = 0;
551  cinfo = &card->ctrlinfo[cidx];
552  ctrl = &card->ctrlinfo[cidx].capi_ctrl;
553 
554  if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
555  printk(KERN_ERR "%s: incoming packet dropped\n",
556  card->name);
557  } else {
558  memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
559  if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF)
560  capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
561  CAPIMSG_NCCI(skb->data),
562  CAPIMSG_MSGID(skb->data));
563 
564  capi_ctr_handle_message(ctrl, ApplId, skb);
565  }
566  break;
567 
568  case RECEIVE_NEW_NCCI:
569 
570  ApplId = _get_word(&p);
571  NCCI = _get_word(&p);
572  WindowSize = _get_word(&p);
573  cidx = (NCCI & 0x7f) - card->cardnr;
574  if (cidx >= card->nlogcontr) cidx = 0;
575 
576  capilib_new_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI, WindowSize);
577 
578  break;
579 
580  case RECEIVE_FREE_NCCI:
581 
582  ApplId = _get_word(&p);
583  NCCI = _get_word(&p);
584 
585  if (NCCI != 0xffffffff) {
586  cidx = (NCCI & 0x7f) - card->cardnr;
587  if (cidx >= card->nlogcontr) cidx = 0;
588  capilib_free_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI);
589  }
590  break;
591 
592  case RECEIVE_START:
593 #ifdef AVM_C4_POLLDEBUG
594  printk(KERN_INFO "%s: poll from c4\n", card->name);
595 #endif
596  if (!suppress_pollack)
597  queue_pollack(card);
598  for (cidx = 0; cidx < card->nr_controllers; cidx++) {
599  ctrl = &card->ctrlinfo[cidx].capi_ctrl;
600  capi_ctr_resume_output(ctrl);
601  }
602  break;
603 
604  case RECEIVE_STOP:
605  for (cidx = 0; cidx < card->nr_controllers; cidx++) {
606  ctrl = &card->ctrlinfo[cidx].capi_ctrl;
607  capi_ctr_suspend_output(ctrl);
608  }
609  break;
610 
611  case RECEIVE_INIT:
612 
613  cidx = card->nlogcontr;
614  if (cidx >= card->nr_controllers) {
615  printk(KERN_ERR "%s: card with %d controllers ??\n",
616  card->name, cidx + 1);
617  break;
618  }
619  card->nlogcontr++;
620  cinfo = &card->ctrlinfo[cidx];
621  ctrl = &cinfo->capi_ctrl;
622  cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
623  b1_parse_version(cinfo);
624  printk(KERN_INFO "%s: %s-card (%s) now active\n",
625  card->name,
626  cinfo->version[VER_CARDTYPE],
627  cinfo->version[VER_DRIVER]);
628  capi_ctr_ready(&cinfo->capi_ctrl);
629  break;
630 
631  case RECEIVE_TASK_READY:
632  ApplId = (unsigned) _get_word(&p);
633  MsgLen = _get_slice(&p, card->msgbuf);
634  card->msgbuf[MsgLen] = 0;
635  while (MsgLen > 0
636  && (card->msgbuf[MsgLen - 1] == '\n'
637  || card->msgbuf[MsgLen - 1] == '\r')) {
638  card->msgbuf[MsgLen - 1] = 0;
639  MsgLen--;
640  }
641  printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
642  card->name, ApplId, card->msgbuf);
643  break;
644 
645  case RECEIVE_DEBUGMSG:
646  MsgLen = _get_slice(&p, card->msgbuf);
647  card->msgbuf[MsgLen] = 0;
648  while (MsgLen > 0
649  && (card->msgbuf[MsgLen - 1] == '\n'
650  || card->msgbuf[MsgLen - 1] == '\r')) {
651  card->msgbuf[MsgLen - 1] = 0;
652  MsgLen--;
653  }
654  printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
655  break;
656 
657  default:
658  printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n",
659  card->name, b1cmd);
660  return;
661  }
662 }
663 
664 /* ------------------------------------------------------------- */
665 
666 static irqreturn_t c4_handle_interrupt(avmcard *card)
667 {
668  unsigned long flags;
669  u32 status;
670 
671  spin_lock_irqsave(&card->lock, flags);
672  status = c4inmeml(card->mbase + DOORBELL);
673 
674  if (status & DBELL_RESET_HOST) {
675  u_int i;
676  c4outmeml(card->mbase + PCI_OUT_INT_MASK, 0x0c);
677  spin_unlock_irqrestore(&card->lock, flags);
678  if (card->nlogcontr == 0)
679  return IRQ_HANDLED;
680  printk(KERN_ERR "%s: unexpected reset\n", card->name);
681  for (i = 0; i < card->nr_controllers; i++) {
682  avmctrl_info *cinfo = &card->ctrlinfo[i];
683  memset(cinfo->version, 0, sizeof(cinfo->version));
684  spin_lock_irqsave(&card->lock, flags);
685  capilib_release(&cinfo->ncci_head);
686  spin_unlock_irqrestore(&card->lock, flags);
687  capi_ctr_down(&cinfo->capi_ctrl);
688  }
689  card->nlogcontr = 0;
690  return IRQ_HANDLED;
691  }
692 
693  status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
694  if (!status) {
695  spin_unlock_irqrestore(&card->lock, flags);
696  return IRQ_HANDLED;
697  }
698  c4outmeml(card->mbase + DOORBELL, status);
699 
700  if ((status & DBELL_UP_HOST) != 0) {
701  card->dma->recvlen = c4inmeml(card->mbase + MBOX_UP_LEN);
702  c4outmeml(card->mbase + MBOX_UP_LEN, 0);
703  c4_handle_rx(card);
704  card->dma->recvlen = 0;
705  c4outmeml(card->mbase + MBOX_UP_LEN, card->dma->recvbuf.size);
706  c4outmeml(card->mbase + DOORBELL, DBELL_UP_ARM);
707  }
708 
709  if ((status & DBELL_DOWN_HOST) != 0) {
710  card->csr &= ~DBELL_DOWN_ARM;
711  c4_dispatch_tx(card);
712  } else if (card->csr & DBELL_DOWN_HOST) {
713  if (c4inmeml(card->mbase + MBOX_DOWN_LEN) == 0) {
714  card->csr &= ~DBELL_DOWN_ARM;
715  c4_dispatch_tx(card);
716  }
717  }
718  spin_unlock_irqrestore(&card->lock, flags);
719  return IRQ_HANDLED;
720 }
721 
722 static irqreturn_t c4_interrupt(int interrupt, void *devptr)
723 {
724  avmcard *card = devptr;
725 
726  return c4_handle_interrupt(card);
727 }
728 
729 /* ------------------------------------------------------------- */
730 
731 static void c4_send_init(avmcard *card)
732 {
733  struct sk_buff *skb;
734  void *p;
735  unsigned long flags;
736 
737  skb = alloc_skb(15, GFP_ATOMIC);
738  if (!skb) {
739  printk(KERN_CRIT "%s: no memory, lost register appl.\n",
740  card->name);
741  return;
742  }
743  p = skb->data;
744  _put_byte(&p, 0);
745  _put_byte(&p, 0);
746  _put_byte(&p, SEND_INIT);
747  _put_word(&p, CAPI_MAXAPPL);
748  _put_word(&p, AVM_NCCI_PER_CHANNEL * 30);
749  _put_word(&p, card->cardnr - 1);
750  skb_put(skb, (u8 *)p - (u8 *)skb->data);
751 
752  skb_queue_tail(&card->dma->send_queue, skb);
753  spin_lock_irqsave(&card->lock, flags);
754  c4_dispatch_tx(card);
755  spin_unlock_irqrestore(&card->lock, flags);
756 }
757 
758 static int queue_sendconfigword(avmcard *card, u32 val)
759 {
760  struct sk_buff *skb;
761  unsigned long flags;
762  void *p;
763 
764  skb = alloc_skb(3 + 4, GFP_ATOMIC);
765  if (!skb) {
766  printk(KERN_CRIT "%s: no memory, send config\n",
767  card->name);
768  return -ENOMEM;
769  }
770  p = skb->data;
771  _put_byte(&p, 0);
772  _put_byte(&p, 0);
773  _put_byte(&p, SEND_CONFIG);
774  _put_word(&p, val);
775  skb_put(skb, (u8 *)p - (u8 *)skb->data);
776 
777  skb_queue_tail(&card->dma->send_queue, skb);
778  spin_lock_irqsave(&card->lock, flags);
779  c4_dispatch_tx(card);
780  spin_unlock_irqrestore(&card->lock, flags);
781  return 0;
782 }
783 
784 static int queue_sendconfig(avmcard *card, char cval[4])
785 {
786  struct sk_buff *skb;
787  unsigned long flags;
788  void *p;
789 
790  skb = alloc_skb(3 + 4, GFP_ATOMIC);
791  if (!skb) {
792  printk(KERN_CRIT "%s: no memory, send config\n",
793  card->name);
794  return -ENOMEM;
795  }
796  p = skb->data;
797  _put_byte(&p, 0);
798  _put_byte(&p, 0);
799  _put_byte(&p, SEND_CONFIG);
800  _put_byte(&p, cval[0]);
801  _put_byte(&p, cval[1]);
802  _put_byte(&p, cval[2]);
803  _put_byte(&p, cval[3]);
804  skb_put(skb, (u8 *)p - (u8 *)skb->data);
805 
806  skb_queue_tail(&card->dma->send_queue, skb);
807 
808  spin_lock_irqsave(&card->lock, flags);
809  c4_dispatch_tx(card);
810  spin_unlock_irqrestore(&card->lock, flags);
811  return 0;
812 }
813 
814 static int c4_send_config(avmcard *card, capiloaddatapart *config)
815 {
816  u8 val[4];
817  unsigned char *dp;
818  u_int left;
819  int retval;
820 
821  if ((retval = queue_sendconfigword(card, 1)) != 0)
822  return retval;
823  if ((retval = queue_sendconfigword(card, config->len)) != 0)
824  return retval;
825 
826  dp = config->data;
827  left = config->len;
828  while (left >= sizeof(u32)) {
829  if (config->user) {
830  if (copy_from_user(val, dp, sizeof(val)))
831  return -EFAULT;
832  } else {
833  memcpy(val, dp, sizeof(val));
834  }
835  if ((retval = queue_sendconfig(card, val)) != 0)
836  return retval;
837  left -= sizeof(val);
838  dp += sizeof(val);
839  }
840  if (left) {
841  memset(val, 0, sizeof(val));
842  if (config->user) {
843  if (copy_from_user(&val, dp, left))
844  return -EFAULT;
845  } else {
846  memcpy(&val, dp, left);
847  }
848  if ((retval = queue_sendconfig(card, val)) != 0)
849  return retval;
850  }
851 
852  return 0;
853 }
854 
855 static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
856 {
857  avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
858  avmcard *card = cinfo->card;
859  int retval;
860 
861  if ((retval = c4_load_t4file(card, &data->firmware))) {
862  printk(KERN_ERR "%s: failed to load t4file!!\n",
863  card->name);
864  c4_reset(card);
865  return retval;
866  }
867 
868  card->csr = 0;
869  c4outmeml(card->mbase + MBOX_UP_LEN, 0);
870  c4outmeml(card->mbase + MBOX_DOWN_LEN, 0);
871  c4outmeml(card->mbase + DOORBELL, DBELL_INIT);
872  mdelay(1);
873  c4outmeml(card->mbase + DOORBELL,
874  DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
875 
876  c4outmeml(card->mbase + PCI_OUT_INT_MASK, 0x08);
877 
878  card->dma->recvlen = 0;
879  c4outmeml(card->mbase + MBOX_UP_ADDR, card->dma->recvbuf.dmaaddr);
880  c4outmeml(card->mbase + MBOX_UP_LEN, card->dma->recvbuf.size);
881  c4outmeml(card->mbase + DOORBELL, DBELL_UP_ARM);
882 
883  if (data->configuration.len > 0 && data->configuration.data) {
884  retval = c4_send_config(card, &data->configuration);
885  if (retval) {
886  printk(KERN_ERR "%s: failed to set config!!\n",
887  card->name);
888  c4_reset(card);
889  return retval;
890  }
891  }
892 
893  c4_send_init(card);
894 
895  return 0;
896 }
897 
898 
899 static void c4_reset_ctr(struct capi_ctr *ctrl)
900 {
901  avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
902  avmctrl_info *cinfo;
903  u_int i;
904  unsigned long flags;
905 
906  spin_lock_irqsave(&card->lock, flags);
907 
908  c4_reset(card);
909 
910  spin_unlock_irqrestore(&card->lock, flags);
911 
912  for (i = 0; i < card->nr_controllers; i++) {
913  cinfo = &card->ctrlinfo[i];
914  memset(cinfo->version, 0, sizeof(cinfo->version));
915  capi_ctr_down(&cinfo->capi_ctrl);
916  }
917  card->nlogcontr = 0;
918 }
919 
920 static void c4_remove(struct pci_dev *pdev)
921 {
922  avmcard *card = pci_get_drvdata(pdev);
923  avmctrl_info *cinfo;
924  u_int i;
925 
926  if (!card)
927  return;
928 
929  c4_reset(card);
930 
931  for (i = 0; i < card->nr_controllers; i++) {
932  cinfo = &card->ctrlinfo[i];
933  detach_capi_ctr(&cinfo->capi_ctrl);
934  }
935 
936  free_irq(card->irq, card);
937  iounmap(card->mbase);
938  release_region(card->port, AVMB1_PORTLEN);
939  avmcard_dma_free(card->dma);
940  pci_set_drvdata(pdev, NULL);
941  b1_free_card(card);
942 }
943 
944 /* ------------------------------------------------------------- */
945 
946 
947 static void c4_register_appl(struct capi_ctr *ctrl,
948  u16 appl,
949  capi_register_params *rp)
950 {
951  avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
952  avmcard *card = cinfo->card;
953  struct sk_buff *skb;
954  int want = rp->level3cnt;
955  unsigned long flags;
956  int nconn;
957  void *p;
958 
959  if (ctrl->cnr == card->cardnr) {
960 
961  if (want > 0) nconn = want;
962  else nconn = ctrl->profile.nbchannel * 4 * -want;
963  if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
964 
965  skb = alloc_skb(23, GFP_ATOMIC);
966  if (!skb) {
967  printk(KERN_CRIT "%s: no memory, lost register appl.\n",
968  card->name);
969  return;
970  }
971  p = skb->data;
972  _put_byte(&p, 0);
973  _put_byte(&p, 0);
974  _put_byte(&p, SEND_REGISTER);
975  _put_word(&p, appl);
976  _put_word(&p, 1024 * (nconn + 1));
977  _put_word(&p, nconn);
978  _put_word(&p, rp->datablkcnt);
979  _put_word(&p, rp->datablklen);
980  skb_put(skb, (u8 *)p - (u8 *)skb->data);
981 
982  skb_queue_tail(&card->dma->send_queue, skb);
983 
984  spin_lock_irqsave(&card->lock, flags);
985  c4_dispatch_tx(card);
986  spin_unlock_irqrestore(&card->lock, flags);
987  }
988 }
989 
990 /* ------------------------------------------------------------- */
991 
992 static void c4_release_appl(struct capi_ctr *ctrl, u16 appl)
993 {
994  avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
995  avmcard *card = cinfo->card;
996  unsigned long flags;
997  struct sk_buff *skb;
998  void *p;
999 
1000  spin_lock_irqsave(&card->lock, flags);
1001  capilib_release_appl(&cinfo->ncci_head, appl);
1002  spin_unlock_irqrestore(&card->lock, flags);
1003 
1004  if (ctrl->cnr == card->cardnr) {
1005  skb = alloc_skb(7, GFP_ATOMIC);
1006  if (!skb) {
1007  printk(KERN_CRIT "%s: no memory, lost release appl.\n",
1008  card->name);
1009  return;
1010  }
1011  p = skb->data;
1012  _put_byte(&p, 0);
1013  _put_byte(&p, 0);
1014  _put_byte(&p, SEND_RELEASE);
1015  _put_word(&p, appl);
1016 
1017  skb_put(skb, (u8 *)p - (u8 *)skb->data);
1018  skb_queue_tail(&card->dma->send_queue, skb);
1019  spin_lock_irqsave(&card->lock, flags);
1020  c4_dispatch_tx(card);
1021  spin_unlock_irqrestore(&card->lock, flags);
1022  }
1023 }
1024 
1025 /* ------------------------------------------------------------- */
1026 
1027 
1028 static u16 c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
1029 {
1030  avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1031  avmcard *card = cinfo->card;
1032  u16 retval = CAPI_NOERROR;
1033  unsigned long flags;
1034 
1035  spin_lock_irqsave(&card->lock, flags);
1036  if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
1037  retval = capilib_data_b3_req(&cinfo->ncci_head,
1038  CAPIMSG_APPID(skb->data),
1039  CAPIMSG_NCCI(skb->data),
1040  CAPIMSG_MSGID(skb->data));
1041  }
1042  if (retval == CAPI_NOERROR) {
1043  skb_queue_tail(&card->dma->send_queue, skb);
1044  c4_dispatch_tx(card);
1045  }
1046  spin_unlock_irqrestore(&card->lock, flags);
1047  return retval;
1048 }
1049 
1050 /* ------------------------------------------------------------- */
1051 
1052 static char *c4_procinfo(struct capi_ctr *ctrl)
1053 {
1054  avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1055 
1056  if (!cinfo)
1057  return "";
1058  sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
1059  cinfo->cardname[0] ? cinfo->cardname : "-",
1060  cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
1061  cinfo->card ? cinfo->card->port : 0x0,
1062  cinfo->card ? cinfo->card->irq : 0,
1063  cinfo->card ? cinfo->card->membase : 0
1064  );
1065  return cinfo->infobuf;
1066 }
1067 
1068 static int c4_proc_show(struct seq_file *m, void *v)
1069 {
1070  struct capi_ctr *ctrl = m->private;
1071  avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
1072  avmcard *card = cinfo->card;
1073  u8 flag;
1074  char *s;
1075 
1076  seq_printf(m, "%-16s %s\n", "name", card->name);
1077  seq_printf(m, "%-16s 0x%x\n", "io", card->port);
1078  seq_printf(m, "%-16s %d\n", "irq", card->irq);
1079  seq_printf(m, "%-16s 0x%lx\n", "membase", card->membase);
1080  switch (card->cardtype) {
1081  case avm_b1isa: s = "B1 ISA"; break;
1082  case avm_b1pci: s = "B1 PCI"; break;
1083  case avm_b1pcmcia: s = "B1 PCMCIA"; break;
1084  case avm_m1: s = "M1"; break;
1085  case avm_m2: s = "M2"; break;
1086  case avm_t1isa: s = "T1 ISA (HEMA)"; break;
1087  case avm_t1pci: s = "T1 PCI"; break;
1088  case avm_c4: s = "C4"; break;
1089  case avm_c2: s = "C2"; break;
1090  default: s = "???"; break;
1091  }
1092  seq_printf(m, "%-16s %s\n", "type", s);
1093  if ((s = cinfo->version[VER_DRIVER]) != NULL)
1094  seq_printf(m, "%-16s %s\n", "ver_driver", s);
1095  if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
1096  seq_printf(m, "%-16s %s\n", "ver_cardtype", s);
1097  if ((s = cinfo->version[VER_SERIAL]) != NULL)
1098  seq_printf(m, "%-16s %s\n", "ver_serial", s);
1099 
1100  if (card->cardtype != avm_m1) {
1101  flag = ((u8 *)(ctrl->profile.manu))[3];
1102  if (flag)
1103  seq_printf(m, "%-16s%s%s%s%s%s%s%s\n",
1104  "protocol",
1105  (flag & 0x01) ? " DSS1" : "",
1106  (flag & 0x02) ? " CT1" : "",
1107  (flag & 0x04) ? " VN3" : "",
1108  (flag & 0x08) ? " NI1" : "",
1109  (flag & 0x10) ? " AUSTEL" : "",
1110  (flag & 0x20) ? " ESS" : "",
1111  (flag & 0x40) ? " 1TR6" : ""
1112  );
1113  }
1114  if (card->cardtype != avm_m1) {
1115  flag = ((u8 *)(ctrl->profile.manu))[5];
1116  if (flag)
1117  seq_printf(m, "%-16s%s%s%s%s\n",
1118  "linetype",
1119  (flag & 0x01) ? " point to point" : "",
1120  (flag & 0x02) ? " point to multipoint" : "",
1121  (flag & 0x08) ? " leased line without D-channel" : "",
1122  (flag & 0x04) ? " leased line with D-channel" : ""
1123  );
1124  }
1125  seq_printf(m, "%-16s %s\n", "cardname", cinfo->cardname);
1126 
1127  return 0;
1128 }
1129 
1130 static int c4_proc_open(struct inode *inode, struct file *file)
1131 {
1132  return single_open(file, c4_proc_show, PDE(inode)->data);
1133 }
1134 
1135 static const struct file_operations c4_proc_fops = {
1136  .owner = THIS_MODULE,
1137  .open = c4_proc_open,
1138  .read = seq_read,
1139  .llseek = seq_lseek,
1140  .release = single_release,
1141 };
1142 
1143 /* ------------------------------------------------------------- */
1144 
1145 static int c4_add_card(struct capicardparams *p, struct pci_dev *dev,
1146  int nr_controllers)
1147 {
1148  avmcard *card;
1149  avmctrl_info *cinfo;
1150  int retval;
1151  int i;
1152 
1153  card = b1_alloc_card(nr_controllers);
1154  if (!card) {
1155  printk(KERN_WARNING "c4: no memory.\n");
1156  retval = -ENOMEM;
1157  goto err;
1158  }
1159  card->dma = avmcard_dma_alloc("c4", dev, 2048 + 128, 2048 + 128);
1160  if (!card->dma) {
1161  printk(KERN_WARNING "c4: no memory.\n");
1162  retval = -ENOMEM;
1163  goto err_free;
1164  }
1165 
1166  sprintf(card->name, "c%d-%x", nr_controllers, p->port);
1167  card->port = p->port;
1168  card->irq = p->irq;
1169  card->membase = p->membase;
1170  card->cardtype = (nr_controllers == 4) ? avm_c4 : avm_c2;
1171 
1172  if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
1173  printk(KERN_WARNING "c4: ports 0x%03x-0x%03x in use.\n",
1174  card->port, card->port + AVMB1_PORTLEN);
1175  retval = -EBUSY;
1176  goto err_free_dma;
1177  }
1178 
1179  card->mbase = ioremap(card->membase, 128);
1180  if (card->mbase == NULL) {
1181  printk(KERN_NOTICE "c4: can't remap memory at 0x%lx\n",
1182  card->membase);
1183  retval = -EIO;
1184  goto err_release_region;
1185  }
1186 
1187  retval = c4_detect(card);
1188  if (retval != 0) {
1189  printk(KERN_NOTICE "c4: NO card at 0x%x error(%d)\n",
1190  card->port, retval);
1191  retval = -EIO;
1192  goto err_unmap;
1193  }
1194  c4_reset(card);
1195 
1196  retval = request_irq(card->irq, c4_interrupt, IRQF_SHARED, card->name, card);
1197  if (retval) {
1198  printk(KERN_ERR "c4: unable to get IRQ %d.\n", card->irq);
1199  retval = -EBUSY;
1200  goto err_unmap;
1201  }
1202 
1203  for (i = 0; i < nr_controllers; i++) {
1204  cinfo = &card->ctrlinfo[i];
1205  cinfo->capi_ctrl.owner = THIS_MODULE;
1206  cinfo->capi_ctrl.driver_name = "c4";
1207  cinfo->capi_ctrl.driverdata = cinfo;
1208  cinfo->capi_ctrl.register_appl = c4_register_appl;
1209  cinfo->capi_ctrl.release_appl = c4_release_appl;
1210  cinfo->capi_ctrl.send_message = c4_send_message;
1211  cinfo->capi_ctrl.load_firmware = c4_load_firmware;
1212  cinfo->capi_ctrl.reset_ctr = c4_reset_ctr;
1213  cinfo->capi_ctrl.procinfo = c4_procinfo;
1214  cinfo->capi_ctrl.proc_fops = &c4_proc_fops;
1215  strcpy(cinfo->capi_ctrl.name, card->name);
1216 
1217  retval = attach_capi_ctr(&cinfo->capi_ctrl);
1218  if (retval) {
1219  printk(KERN_ERR "c4: attach controller failed (%d).\n", i);
1220  for (i--; i >= 0; i--) {
1221  cinfo = &card->ctrlinfo[i];
1222  detach_capi_ctr(&cinfo->capi_ctrl);
1223  }
1224  goto err_free_irq;
1225  }
1226  if (i == 0)
1227  card->cardnr = cinfo->capi_ctrl.cnr;
1228  }
1229 
1230  printk(KERN_INFO "c4: AVM C%d at i/o %#x, irq %d, mem %#lx\n",
1231  nr_controllers, card->port, card->irq,
1232  card->membase);
1233  pci_set_drvdata(dev, card);
1234  return 0;
1235 
1236 err_free_irq:
1237  free_irq(card->irq, card);
1238 err_unmap:
1239  iounmap(card->mbase);
1240 err_release_region:
1241  release_region(card->port, AVMB1_PORTLEN);
1242 err_free_dma:
1243  avmcard_dma_free(card->dma);
1244 err_free:
1245  b1_free_card(card);
1246 err:
1247  return retval;
1248 }
1249 
1250 /* ------------------------------------------------------------- */
1251 
1252 static int __devinit c4_probe(struct pci_dev *dev,
1253  const struct pci_device_id *ent)
1254 {
1255  int nr = ent->driver_data;
1256  int retval = 0;
1257  struct capicardparams param;
1258 
1259  if (pci_enable_device(dev) < 0) {
1260  printk(KERN_ERR "c4: failed to enable AVM-C%d\n", nr);
1261  return -ENODEV;
1262  }
1263  pci_set_master(dev);
1264 
1265  param.port = pci_resource_start(dev, 1);
1266  param.irq = dev->irq;
1267  param.membase = pci_resource_start(dev, 0);
1268 
1269  printk(KERN_INFO "c4: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#x\n",
1270  nr, param.port, param.irq, param.membase);
1271 
1272  retval = c4_add_card(&param, dev, nr);
1273  if (retval != 0) {
1274  printk(KERN_ERR "c4: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n",
1275  nr, param.port, param.irq, param.membase);
1276  pci_disable_device(dev);
1277  return -ENODEV;
1278  }
1279  return 0;
1280 }
1281 
1282 static struct pci_driver c4_pci_driver = {
1283  .name = "c4",
1284  .id_table = c4_pci_tbl,
1285  .probe = c4_probe,
1286  .remove = c4_remove,
1287 };
1288 
1289 static struct capi_driver capi_driver_c2 = {
1290  .name = "c2",
1291  .revision = "1.0",
1292 };
1293 
1294 static struct capi_driver capi_driver_c4 = {
1295  .name = "c4",
1296  .revision = "1.0",
1297 };
1298 
1299 static int __init c4_init(void)
1300 {
1301  char *p;
1302  char rev[32];
1303  int err;
1304 
1305  if ((p = strchr(revision, ':')) != NULL && p[1]) {
1306  strlcpy(rev, p + 2, 32);
1307  if ((p = strchr(rev, '$')) != NULL && p > rev)
1308  *(p - 1) = 0;
1309  } else
1310  strcpy(rev, "1.0");
1311 
1312  err = pci_register_driver(&c4_pci_driver);
1313  if (!err) {
1314  strlcpy(capi_driver_c2.revision, rev, 32);
1315  register_capi_driver(&capi_driver_c2);
1316  strlcpy(capi_driver_c4.revision, rev, 32);
1317  register_capi_driver(&capi_driver_c4);
1318  printk(KERN_INFO "c4: revision %s\n", rev);
1319  }
1320  return err;
1321 }
1322 
1323 static void __exit c4_exit(void)
1324 {
1325  unregister_capi_driver(&capi_driver_c2);
1326  unregister_capi_driver(&capi_driver_c4);
1327  pci_unregister_driver(&c4_pci_driver);
1328 }
1329 
1330 module_init(c4_init);
1331 module_exit(c4_exit);
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