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1da177e4 LT |
1 | /* $Id: icn.c,v 1.65.6.8 2001/09/23 22:24:55 kai Exp $ |
2 | * | |
3 | * ISDN low-level module for the ICN active ISDN-Card. | |
4 | * | |
5 | * Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.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 "icn.h" | |
13 | #include <linux/module.h> | |
14 | #include <linux/init.h> | |
15 | ||
16 | static int portbase = ICN_BASEADDR; | |
17 | static unsigned long membase = ICN_MEMADDR; | |
18 | static char *icn_id = "\0"; | |
19 | static char *icn_id2 = "\0"; | |
20 | ||
21 | MODULE_DESCRIPTION("ISDN4Linux: Driver for ICN active ISDN card"); | |
22 | MODULE_AUTHOR("Fritz Elfert"); | |
23 | MODULE_LICENSE("GPL"); | |
24 | module_param(portbase, int, 0); | |
25 | MODULE_PARM_DESC(portbase, "Port address of first card"); | |
26 | module_param(membase, ulong, 0); | |
27 | MODULE_PARM_DESC(membase, "Shared memory address of all cards"); | |
28 | module_param(icn_id, charp, 0); | |
29 | MODULE_PARM_DESC(icn_id, "ID-String of first card"); | |
30 | module_param(icn_id2, charp, 0); | |
31 | MODULE_PARM_DESC(icn_id2, "ID-String of first card, second S0 (4B only)"); | |
32 | ||
33 | /* | |
34 | * Verbose bootcode- and protocol-downloading. | |
35 | */ | |
36 | #undef BOOT_DEBUG | |
37 | ||
38 | /* | |
39 | * Verbose Shmem-Mapping. | |
40 | */ | |
41 | #undef MAP_DEBUG | |
42 | ||
43 | static char | |
44 | *revision = "$Revision: 1.65.6.8 $"; | |
45 | ||
46 | static int icn_addcard(int, char *, char *); | |
47 | ||
48 | /* | |
49 | * Free send-queue completely. | |
50 | * Parameter: | |
51 | * card = pointer to card struct | |
52 | * channel = channel number | |
53 | */ | |
54 | static void | |
55 | icn_free_queue(icn_card * card, int channel) | |
56 | { | |
57 | struct sk_buff_head *queue = &card->spqueue[channel]; | |
58 | struct sk_buff *skb; | |
59 | ||
60 | skb_queue_purge(queue); | |
61 | card->xlen[channel] = 0; | |
62 | card->sndcount[channel] = 0; | |
63 | if ((skb = card->xskb[channel])) { | |
64 | card->xskb[channel] = NULL; | |
65 | dev_kfree_skb(skb); | |
66 | } | |
67 | } | |
68 | ||
69 | /* Put a value into a shift-register, highest bit first. | |
70 | * Parameters: | |
71 | * port = port for output (bit 0 is significant) | |
72 | * val = value to be output | |
73 | * firstbit = Bit-Number of highest bit | |
74 | * bitcount = Number of bits to output | |
75 | */ | |
76 | static inline void | |
77 | icn_shiftout(unsigned short port, | |
78 | unsigned long val, | |
79 | int firstbit, | |
80 | int bitcount) | |
81 | { | |
82 | ||
83 | register u_char s; | |
84 | register u_char c; | |
85 | ||
86 | for (s = firstbit, c = bitcount; c > 0; s--, c--) | |
87 | OUTB_P((u_char) ((val >> s) & 1) ? 0xff : 0, port); | |
88 | } | |
89 | ||
90 | /* | |
91 | * disable a cards shared memory | |
92 | */ | |
93 | static inline void | |
94 | icn_disable_ram(icn_card * card) | |
95 | { | |
96 | OUTB_P(0, ICN_MAPRAM); | |
97 | } | |
98 | ||
99 | /* | |
100 | * enable a cards shared memory | |
101 | */ | |
102 | static inline void | |
103 | icn_enable_ram(icn_card * card) | |
104 | { | |
105 | OUTB_P(0xff, ICN_MAPRAM); | |
106 | } | |
107 | ||
108 | /* | |
109 | * Map a cards channel0 (Bank0/Bank8) or channel1 (Bank4/Bank12) | |
110 | * | |
111 | * must called with holding the devlock | |
112 | */ | |
113 | static inline void | |
114 | icn_map_channel(icn_card * card, int channel) | |
115 | { | |
116 | #ifdef MAP_DEBUG | |
117 | printk(KERN_DEBUG "icn_map_channel %d %d\n", dev.channel, channel); | |
118 | #endif | |
119 | if ((channel == dev.channel) && (card == dev.mcard)) | |
120 | return; | |
121 | if (dev.mcard) | |
122 | icn_disable_ram(dev.mcard); | |
123 | icn_shiftout(ICN_BANK, chan2bank[channel], 3, 4); /* Select Bank */ | |
124 | icn_enable_ram(card); | |
125 | dev.mcard = card; | |
126 | dev.channel = channel; | |
127 | #ifdef MAP_DEBUG | |
128 | printk(KERN_DEBUG "icn_map_channel done\n"); | |
129 | #endif | |
130 | } | |
131 | ||
132 | /* | |
133 | * Lock a cards channel. | |
134 | * Return 0 if requested card/channel is unmapped (failure). | |
135 | * Return 1 on success. | |
136 | * | |
137 | * must called with holding the devlock | |
138 | */ | |
139 | static inline int | |
140 | icn_lock_channel(icn_card * card, int channel) | |
141 | { | |
142 | register int retval; | |
143 | ||
144 | #ifdef MAP_DEBUG | |
145 | printk(KERN_DEBUG "icn_lock_channel %d\n", channel); | |
146 | #endif | |
147 | if ((dev.channel == channel) && (card == dev.mcard)) { | |
148 | dev.chanlock++; | |
149 | retval = 1; | |
150 | #ifdef MAP_DEBUG | |
151 | printk(KERN_DEBUG "icn_lock_channel %d OK\n", channel); | |
152 | #endif | |
153 | } else { | |
154 | retval = 0; | |
155 | #ifdef MAP_DEBUG | |
156 | printk(KERN_DEBUG "icn_lock_channel %d FAILED, dc=%d\n", channel, dev.channel); | |
157 | #endif | |
158 | } | |
159 | return retval; | |
160 | } | |
161 | ||
162 | /* | |
163 | * Release current card/channel lock | |
164 | * | |
165 | * must called with holding the devlock | |
166 | */ | |
167 | static inline void | |
168 | __icn_release_channel(void) | |
169 | { | |
170 | #ifdef MAP_DEBUG | |
171 | printk(KERN_DEBUG "icn_release_channel l=%d\n", dev.chanlock); | |
172 | #endif | |
173 | if (dev.chanlock > 0) | |
174 | dev.chanlock--; | |
175 | } | |
176 | ||
177 | /* | |
178 | * Release current card/channel lock | |
179 | */ | |
180 | static inline void | |
181 | icn_release_channel(void) | |
182 | { | |
183 | ulong flags; | |
184 | ||
185 | spin_lock_irqsave(&dev.devlock, flags); | |
186 | __icn_release_channel(); | |
187 | spin_unlock_irqrestore(&dev.devlock, flags); | |
188 | } | |
189 | ||
190 | /* | |
191 | * Try to map and lock a cards channel. | |
192 | * Return 1 on success, 0 on failure. | |
193 | */ | |
194 | static inline int | |
195 | icn_trymaplock_channel(icn_card * card, int channel) | |
196 | { | |
197 | ulong flags; | |
198 | ||
199 | #ifdef MAP_DEBUG | |
200 | printk(KERN_DEBUG "trymaplock c=%d dc=%d l=%d\n", channel, dev.channel, | |
201 | dev.chanlock); | |
202 | #endif | |
203 | spin_lock_irqsave(&dev.devlock, flags); | |
204 | if ((!dev.chanlock) || | |
205 | ((dev.channel == channel) && (dev.mcard == card))) { | |
206 | dev.chanlock++; | |
207 | icn_map_channel(card, channel); | |
208 | spin_unlock_irqrestore(&dev.devlock, flags); | |
209 | #ifdef MAP_DEBUG | |
210 | printk(KERN_DEBUG "trymaplock %d OK\n", channel); | |
211 | #endif | |
212 | return 1; | |
213 | } | |
214 | spin_unlock_irqrestore(&dev.devlock, flags); | |
215 | #ifdef MAP_DEBUG | |
216 | printk(KERN_DEBUG "trymaplock %d FAILED\n", channel); | |
217 | #endif | |
218 | return 0; | |
219 | } | |
220 | ||
221 | /* | |
222 | * Release current card/channel lock, | |
223 | * then map same or other channel without locking. | |
224 | */ | |
225 | static inline void | |
226 | icn_maprelease_channel(icn_card * card, int channel) | |
227 | { | |
228 | ulong flags; | |
229 | ||
230 | #ifdef MAP_DEBUG | |
231 | printk(KERN_DEBUG "map_release c=%d l=%d\n", channel, dev.chanlock); | |
232 | #endif | |
233 | spin_lock_irqsave(&dev.devlock, flags); | |
234 | if (dev.chanlock > 0) | |
235 | dev.chanlock--; | |
236 | if (!dev.chanlock) | |
237 | icn_map_channel(card, channel); | |
238 | spin_unlock_irqrestore(&dev.devlock, flags); | |
239 | } | |
240 | ||
241 | /* Get Data from the B-Channel, assemble fragmented packets and put them | |
242 | * into receive-queue. Wake up any B-Channel-reading processes. | |
243 | * This routine is called via timer-callback from icn_pollbchan(). | |
244 | */ | |
245 | ||
246 | static void | |
247 | icn_pollbchan_receive(int channel, icn_card * card) | |
248 | { | |
249 | int mch = channel + ((card->secondhalf) ? 2 : 0); | |
250 | int eflag; | |
251 | int cnt; | |
252 | struct sk_buff *skb; | |
253 | ||
254 | if (icn_trymaplock_channel(card, mch)) { | |
255 | while (rbavl) { | |
256 | cnt = readb(&rbuf_l); | |
257 | if ((card->rcvidx[channel] + cnt) > 4000) { | |
258 | printk(KERN_WARNING | |
259 | "icn: (%s) bogus packet on ch%d, dropping.\n", | |
260 | CID, | |
261 | channel + 1); | |
262 | card->rcvidx[channel] = 0; | |
263 | eflag = 0; | |
264 | } else { | |
265 | memcpy_fromio(&card->rcvbuf[channel][card->rcvidx[channel]], | |
266 | &rbuf_d, cnt); | |
267 | card->rcvidx[channel] += cnt; | |
268 | eflag = readb(&rbuf_f); | |
269 | } | |
270 | rbnext; | |
271 | icn_maprelease_channel(card, mch & 2); | |
272 | if (!eflag) { | |
273 | if ((cnt = card->rcvidx[channel])) { | |
274 | if (!(skb = dev_alloc_skb(cnt))) { | |
275 | printk(KERN_WARNING "icn: receive out of memory\n"); | |
276 | break; | |
277 | } | |
278 | memcpy(skb_put(skb, cnt), card->rcvbuf[channel], cnt); | |
279 | card->rcvidx[channel] = 0; | |
280 | card->interface.rcvcallb_skb(card->myid, channel, skb); | |
281 | } | |
282 | } | |
283 | if (!icn_trymaplock_channel(card, mch)) | |
284 | break; | |
285 | } | |
286 | icn_maprelease_channel(card, mch & 2); | |
287 | } | |
288 | } | |
289 | ||
290 | /* Send data-packet to B-Channel, split it up into fragments of | |
291 | * ICN_FRAGSIZE length. If last fragment is sent out, signal | |
292 | * success to upper layers via statcallb with ISDN_STAT_BSENT argument. | |
293 | * This routine is called via timer-callback from icn_pollbchan() or | |
294 | * directly from icn_sendbuf(). | |
295 | */ | |
296 | ||
297 | static void | |
298 | icn_pollbchan_send(int channel, icn_card * card) | |
299 | { | |
300 | int mch = channel + ((card->secondhalf) ? 2 : 0); | |
301 | int cnt; | |
302 | unsigned long flags; | |
303 | struct sk_buff *skb; | |
304 | isdn_ctrl cmd; | |
305 | ||
306 | if (!(card->sndcount[channel] || card->xskb[channel] || | |
b03efcfb | 307 | !skb_queue_empty(&card->spqueue[channel]))) |
1da177e4 LT |
308 | return; |
309 | if (icn_trymaplock_channel(card, mch)) { | |
310 | while (sbfree && | |
311 | (card->sndcount[channel] || | |
b03efcfb | 312 | !skb_queue_empty(&card->spqueue[channel]) || |
1da177e4 LT |
313 | card->xskb[channel])) { |
314 | spin_lock_irqsave(&card->lock, flags); | |
315 | if (card->xmit_lock[channel]) { | |
316 | spin_unlock_irqrestore(&card->lock, flags); | |
317 | break; | |
318 | } | |
319 | card->xmit_lock[channel]++; | |
320 | spin_unlock_irqrestore(&card->lock, flags); | |
321 | skb = card->xskb[channel]; | |
322 | if (!skb) { | |
323 | skb = skb_dequeue(&card->spqueue[channel]); | |
324 | if (skb) { | |
325 | /* Pop ACK-flag off skb. | |
326 | * Store length to xlen. | |
327 | */ | |
328 | if (*(skb_pull(skb,1))) | |
329 | card->xlen[channel] = skb->len; | |
330 | else | |
331 | card->xlen[channel] = 0; | |
332 | } | |
333 | } | |
334 | if (!skb) | |
335 | break; | |
336 | if (skb->len > ICN_FRAGSIZE) { | |
337 | writeb(0xff, &sbuf_f); | |
338 | cnt = ICN_FRAGSIZE; | |
339 | } else { | |
340 | writeb(0x0, &sbuf_f); | |
341 | cnt = skb->len; | |
342 | } | |
343 | writeb(cnt, &sbuf_l); | |
344 | memcpy_toio(&sbuf_d, skb->data, cnt); | |
345 | skb_pull(skb, cnt); | |
346 | sbnext; /* switch to next buffer */ | |
347 | icn_maprelease_channel(card, mch & 2); | |
348 | spin_lock_irqsave(&card->lock, flags); | |
349 | card->sndcount[channel] -= cnt; | |
350 | if (!skb->len) { | |
351 | if (card->xskb[channel]) | |
352 | card->xskb[channel] = NULL; | |
353 | card->xmit_lock[channel] = 0; | |
354 | spin_unlock_irqrestore(&card->lock, flags); | |
355 | dev_kfree_skb(skb); | |
356 | if (card->xlen[channel]) { | |
357 | cmd.command = ISDN_STAT_BSENT; | |
358 | cmd.driver = card->myid; | |
359 | cmd.arg = channel; | |
360 | cmd.parm.length = card->xlen[channel]; | |
361 | card->interface.statcallb(&cmd); | |
362 | } | |
363 | } else { | |
364 | card->xskb[channel] = skb; | |
365 | card->xmit_lock[channel] = 0; | |
366 | spin_unlock_irqrestore(&card->lock, flags); | |
367 | } | |
368 | if (!icn_trymaplock_channel(card, mch)) | |
369 | break; | |
370 | } | |
371 | icn_maprelease_channel(card, mch & 2); | |
372 | } | |
373 | } | |
374 | ||
375 | /* Send/Receive Data to/from the B-Channel. | |
376 | * This routine is called via timer-callback. | |
377 | * It schedules itself while any B-Channel is open. | |
378 | */ | |
379 | ||
380 | static void | |
381 | icn_pollbchan(unsigned long data) | |
382 | { | |
383 | icn_card *card = (icn_card *) data; | |
384 | unsigned long flags; | |
385 | ||
386 | if (card->flags & ICN_FLAGS_B1ACTIVE) { | |
387 | icn_pollbchan_receive(0, card); | |
388 | icn_pollbchan_send(0, card); | |
389 | } | |
390 | if (card->flags & ICN_FLAGS_B2ACTIVE) { | |
391 | icn_pollbchan_receive(1, card); | |
392 | icn_pollbchan_send(1, card); | |
393 | } | |
394 | if (card->flags & (ICN_FLAGS_B1ACTIVE | ICN_FLAGS_B2ACTIVE)) { | |
395 | /* schedule b-channel polling again */ | |
396 | spin_lock_irqsave(&card->lock, flags); | |
397 | mod_timer(&card->rb_timer, jiffies+ICN_TIMER_BCREAD); | |
398 | card->flags |= ICN_FLAGS_RBTIMER; | |
399 | spin_unlock_irqrestore(&card->lock, flags); | |
400 | } else | |
401 | card->flags &= ~ICN_FLAGS_RBTIMER; | |
402 | } | |
403 | ||
404 | typedef struct icn_stat { | |
405 | char *statstr; | |
406 | int command; | |
407 | int action; | |
408 | } icn_stat; | |
409 | /* *INDENT-OFF* */ | |
410 | static icn_stat icn_stat_table[] = | |
411 | { | |
412 | {"BCON_", ISDN_STAT_BCONN, 1}, /* B-Channel connected */ | |
413 | {"BDIS_", ISDN_STAT_BHUP, 2}, /* B-Channel disconnected */ | |
414 | /* | |
415 | ** add d-channel connect and disconnect support to link-level | |
416 | */ | |
417 | {"DCON_", ISDN_STAT_DCONN, 10}, /* D-Channel connected */ | |
418 | {"DDIS_", ISDN_STAT_DHUP, 11}, /* D-Channel disconnected */ | |
419 | {"DCAL_I", ISDN_STAT_ICALL, 3}, /* Incoming call dialup-line */ | |
420 | {"DSCA_I", ISDN_STAT_ICALL, 3}, /* Incoming call 1TR6-SPV */ | |
421 | {"FCALL", ISDN_STAT_ICALL, 4}, /* Leased line connection up */ | |
422 | {"CIF", ISDN_STAT_CINF, 5}, /* Charge-info, 1TR6-type */ | |
423 | {"AOC", ISDN_STAT_CINF, 6}, /* Charge-info, DSS1-type */ | |
424 | {"CAU", ISDN_STAT_CAUSE, 7}, /* Cause code */ | |
425 | {"TEI OK", ISDN_STAT_RUN, 0}, /* Card connected to wallplug */ | |
426 | {"E_L1: ACT FAIL", ISDN_STAT_BHUP, 8}, /* Layer-1 activation failed */ | |
427 | {"E_L2: DATA LIN", ISDN_STAT_BHUP, 8}, /* Layer-2 data link lost */ | |
428 | {"E_L1: ACTIVATION FAILED", | |
429 | ISDN_STAT_BHUP, 8}, /* Layer-1 activation failed */ | |
430 | {NULL, 0, -1} | |
431 | }; | |
432 | /* *INDENT-ON* */ | |
433 | ||
434 | ||
435 | /* | |
436 | * Check Statusqueue-Pointer from isdn-cards. | |
437 | * If there are new status-replies from the interface, check | |
438 | * them against B-Channel-connects/disconnects and set flags accordingly. | |
439 | * Wake-Up any processes, who are reading the status-device. | |
440 | * If there are B-Channels open, initiate a timer-callback to | |
441 | * icn_pollbchan(). | |
442 | * This routine is called periodically via timer. | |
443 | */ | |
444 | ||
445 | static void | |
446 | icn_parse_status(u_char * status, int channel, icn_card * card) | |
447 | { | |
448 | icn_stat *s = icn_stat_table; | |
449 | int action = -1; | |
450 | unsigned long flags; | |
451 | isdn_ctrl cmd; | |
452 | ||
453 | while (s->statstr) { | |
454 | if (!strncmp(status, s->statstr, strlen(s->statstr))) { | |
455 | cmd.command = s->command; | |
456 | action = s->action; | |
457 | break; | |
458 | } | |
459 | s++; | |
460 | } | |
461 | if (action == -1) | |
462 | return; | |
463 | cmd.driver = card->myid; | |
464 | cmd.arg = channel; | |
465 | switch (action) { | |
466 | case 11: | |
467 | spin_lock_irqsave(&card->lock, flags); | |
468 | icn_free_queue(card,channel); | |
469 | card->rcvidx[channel] = 0; | |
470 | ||
471 | if (card->flags & | |
472 | ((channel)?ICN_FLAGS_B2ACTIVE:ICN_FLAGS_B1ACTIVE)) { | |
473 | ||
474 | isdn_ctrl ncmd; | |
475 | ||
476 | card->flags &= ~((channel)? | |
477 | ICN_FLAGS_B2ACTIVE:ICN_FLAGS_B1ACTIVE); | |
478 | ||
479 | memset(&ncmd, 0, sizeof(ncmd)); | |
480 | ||
481 | ncmd.driver = card->myid; | |
482 | ncmd.arg = channel; | |
483 | ncmd.command = ISDN_STAT_BHUP; | |
484 | spin_unlock_irqrestore(&card->lock, flags); | |
485 | card->interface.statcallb(&cmd); | |
486 | } else | |
487 | spin_unlock_irqrestore(&card->lock, flags); | |
488 | break; | |
489 | case 1: | |
490 | spin_lock_irqsave(&card->lock, flags); | |
491 | icn_free_queue(card,channel); | |
492 | card->flags |= (channel) ? | |
493 | ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE; | |
494 | spin_unlock_irqrestore(&card->lock, flags); | |
495 | break; | |
496 | case 2: | |
497 | spin_lock_irqsave(&card->lock, flags); | |
498 | card->flags &= ~((channel) ? | |
499 | ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE); | |
500 | icn_free_queue(card, channel); | |
501 | card->rcvidx[channel] = 0; | |
502 | spin_unlock_irqrestore(&card->lock, flags); | |
503 | break; | |
504 | case 3: | |
505 | { | |
506 | char *t = status + 6; | |
507 | char *s = strchr(t, ','); | |
508 | ||
509 | *s++ = '\0'; | |
510 | strlcpy(cmd.parm.setup.phone, t, | |
511 | sizeof(cmd.parm.setup.phone)); | |
512 | s = strchr(t = s, ','); | |
513 | *s++ = '\0'; | |
514 | if (!strlen(t)) | |
515 | cmd.parm.setup.si1 = 0; | |
516 | else | |
517 | cmd.parm.setup.si1 = | |
518 | simple_strtoul(t, NULL, 10); | |
519 | s = strchr(t = s, ','); | |
520 | *s++ = '\0'; | |
521 | if (!strlen(t)) | |
522 | cmd.parm.setup.si2 = 0; | |
523 | else | |
524 | cmd.parm.setup.si2 = | |
525 | simple_strtoul(t, NULL, 10); | |
526 | strlcpy(cmd.parm.setup.eazmsn, s, | |
527 | sizeof(cmd.parm.setup.eazmsn)); | |
528 | } | |
529 | cmd.parm.setup.plan = 0; | |
530 | cmd.parm.setup.screen = 0; | |
531 | break; | |
532 | case 4: | |
533 | sprintf(cmd.parm.setup.phone, "LEASED%d", card->myid); | |
534 | sprintf(cmd.parm.setup.eazmsn, "%d", channel + 1); | |
535 | cmd.parm.setup.si1 = 7; | |
536 | cmd.parm.setup.si2 = 0; | |
537 | cmd.parm.setup.plan = 0; | |
538 | cmd.parm.setup.screen = 0; | |
539 | break; | |
540 | case 5: | |
541 | strlcpy(cmd.parm.num, status + 3, sizeof(cmd.parm.num)); | |
542 | break; | |
543 | case 6: | |
544 | snprintf(cmd.parm.num, sizeof(cmd.parm.num), "%d", | |
545 | (int) simple_strtoul(status + 7, NULL, 16)); | |
546 | break; | |
547 | case 7: | |
548 | status += 3; | |
549 | if (strlen(status) == 4) | |
550 | snprintf(cmd.parm.num, sizeof(cmd.parm.num), "%s%c%c", | |
551 | status + 2, *status, *(status + 1)); | |
552 | else | |
553 | strlcpy(cmd.parm.num, status + 1, sizeof(cmd.parm.num)); | |
554 | break; | |
555 | case 8: | |
556 | spin_lock_irqsave(&card->lock, flags); | |
557 | card->flags &= ~ICN_FLAGS_B1ACTIVE; | |
558 | icn_free_queue(card, 0); | |
559 | card->rcvidx[0] = 0; | |
560 | spin_unlock_irqrestore(&card->lock, flags); | |
561 | cmd.arg = 0; | |
562 | cmd.driver = card->myid; | |
563 | card->interface.statcallb(&cmd); | |
564 | cmd.command = ISDN_STAT_DHUP; | |
565 | cmd.arg = 0; | |
566 | cmd.driver = card->myid; | |
567 | card->interface.statcallb(&cmd); | |
568 | cmd.command = ISDN_STAT_BHUP; | |
569 | spin_lock_irqsave(&card->lock, flags); | |
570 | card->flags &= ~ICN_FLAGS_B2ACTIVE; | |
571 | icn_free_queue(card, 1); | |
572 | card->rcvidx[1] = 0; | |
573 | spin_unlock_irqrestore(&card->lock, flags); | |
574 | cmd.arg = 1; | |
575 | cmd.driver = card->myid; | |
576 | card->interface.statcallb(&cmd); | |
577 | cmd.command = ISDN_STAT_DHUP; | |
578 | cmd.arg = 1; | |
579 | cmd.driver = card->myid; | |
580 | break; | |
581 | } | |
582 | card->interface.statcallb(&cmd); | |
583 | return; | |
584 | } | |
585 | ||
586 | static void | |
587 | icn_putmsg(icn_card * card, unsigned char c) | |
588 | { | |
589 | ulong flags; | |
590 | ||
591 | spin_lock_irqsave(&card->lock, flags); | |
592 | *card->msg_buf_write++ = (c == 0xff) ? '\n' : c; | |
593 | if (card->msg_buf_write == card->msg_buf_read) { | |
594 | if (++card->msg_buf_read > card->msg_buf_end) | |
595 | card->msg_buf_read = card->msg_buf; | |
596 | } | |
597 | if (card->msg_buf_write > card->msg_buf_end) | |
598 | card->msg_buf_write = card->msg_buf; | |
599 | spin_unlock_irqrestore(&card->lock, flags); | |
600 | } | |
601 | ||
602 | static void | |
603 | icn_polldchan(unsigned long data) | |
604 | { | |
605 | icn_card *card = (icn_card *) data; | |
606 | int mch = card->secondhalf ? 2 : 0; | |
607 | int avail = 0; | |
608 | int left; | |
609 | u_char c; | |
610 | int ch; | |
611 | unsigned long flags; | |
612 | int i; | |
613 | u_char *p; | |
614 | isdn_ctrl cmd; | |
615 | ||
616 | if (icn_trymaplock_channel(card, mch)) { | |
617 | avail = msg_avail; | |
618 | for (left = avail, i = readb(&msg_o); left > 0; i++, left--) { | |
619 | c = readb(&dev.shmem->comm_buffers.iopc_buf[i & 0xff]); | |
620 | icn_putmsg(card, c); | |
621 | if (c == 0xff) { | |
622 | card->imsg[card->iptr] = 0; | |
623 | card->iptr = 0; | |
624 | if (card->imsg[0] == '0' && card->imsg[1] >= '0' && | |
625 | card->imsg[1] <= '2' && card->imsg[2] == ';') { | |
626 | ch = (card->imsg[1] - '0') - 1; | |
627 | p = &card->imsg[3]; | |
628 | icn_parse_status(p, ch, card); | |
629 | } else { | |
630 | p = card->imsg; | |
631 | if (!strncmp(p, "DRV1.", 5)) { | |
632 | u_char vstr[10]; | |
633 | u_char *q = vstr; | |
634 | ||
635 | printk(KERN_INFO "icn: (%s) %s\n", CID, p); | |
636 | if (!strncmp(p + 7, "TC", 2)) { | |
637 | card->ptype = ISDN_PTYPE_1TR6; | |
638 | card->interface.features |= ISDN_FEATURE_P_1TR6; | |
639 | printk(KERN_INFO | |
640 | "icn: (%s) 1TR6-Protocol loaded and running\n", CID); | |
641 | } | |
642 | if (!strncmp(p + 7, "EC", 2)) { | |
643 | card->ptype = ISDN_PTYPE_EURO; | |
644 | card->interface.features |= ISDN_FEATURE_P_EURO; | |
645 | printk(KERN_INFO | |
646 | "icn: (%s) Euro-Protocol loaded and running\n", CID); | |
647 | } | |
648 | p = strstr(card->imsg, "BRV") + 3; | |
649 | while (*p) { | |
650 | if (*p >= '0' && *p <= '9') | |
651 | *q++ = *p; | |
652 | p++; | |
653 | } | |
654 | *q = '\0'; | |
655 | strcat(vstr, "000"); | |
656 | vstr[3] = '\0'; | |
657 | card->fw_rev = (int) simple_strtoul(vstr, NULL, 10); | |
658 | continue; | |
659 | ||
660 | } | |
661 | } | |
662 | } else { | |
663 | card->imsg[card->iptr] = c; | |
664 | if (card->iptr < 59) | |
665 | card->iptr++; | |
666 | } | |
667 | } | |
668 | writeb((readb(&msg_o) + avail) & 0xff, &msg_o); | |
669 | icn_release_channel(); | |
670 | } | |
671 | if (avail) { | |
672 | cmd.command = ISDN_STAT_STAVAIL; | |
673 | cmd.driver = card->myid; | |
674 | cmd.arg = avail; | |
675 | card->interface.statcallb(&cmd); | |
676 | } | |
677 | spin_lock_irqsave(&card->lock, flags); | |
678 | if (card->flags & (ICN_FLAGS_B1ACTIVE | ICN_FLAGS_B2ACTIVE)) | |
679 | if (!(card->flags & ICN_FLAGS_RBTIMER)) { | |
680 | /* schedule b-channel polling */ | |
681 | card->flags |= ICN_FLAGS_RBTIMER; | |
682 | del_timer(&card->rb_timer); | |
683 | card->rb_timer.function = icn_pollbchan; | |
684 | card->rb_timer.data = (unsigned long) card; | |
685 | card->rb_timer.expires = jiffies + ICN_TIMER_BCREAD; | |
686 | add_timer(&card->rb_timer); | |
687 | } | |
688 | /* schedule again */ | |
689 | mod_timer(&card->st_timer, jiffies+ICN_TIMER_DCREAD); | |
690 | spin_unlock_irqrestore(&card->lock, flags); | |
691 | } | |
692 | ||
693 | /* Append a packet to the transmit buffer-queue. | |
694 | * Parameters: | |
695 | * channel = Number of B-channel | |
696 | * skb = pointer to sk_buff | |
697 | * card = pointer to card-struct | |
698 | * Return: | |
699 | * Number of bytes transferred, -E??? on error | |
700 | */ | |
701 | ||
702 | static int | |
703 | icn_sendbuf(int channel, int ack, struct sk_buff *skb, icn_card * card) | |
704 | { | |
705 | int len = skb->len; | |
706 | unsigned long flags; | |
707 | struct sk_buff *nskb; | |
708 | ||
709 | if (len > 4000) { | |
710 | printk(KERN_WARNING | |
711 | "icn: Send packet too large\n"); | |
712 | return -EINVAL; | |
713 | } | |
714 | if (len) { | |
715 | if (!(card->flags & (channel) ? ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE)) | |
716 | return 0; | |
717 | if (card->sndcount[channel] > ICN_MAX_SQUEUE) | |
718 | return 0; | |
719 | #warning TODO test headroom or use skb->nb to flag ACK | |
720 | nskb = skb_clone(skb, GFP_ATOMIC); | |
721 | if (nskb) { | |
722 | /* Push ACK flag as one | |
723 | * byte in front of data. | |
724 | */ | |
725 | *(skb_push(nskb, 1)) = ack?1:0; | |
726 | skb_queue_tail(&card->spqueue[channel], nskb); | |
727 | dev_kfree_skb(skb); | |
728 | } else | |
729 | len = 0; | |
730 | spin_lock_irqsave(&card->lock, flags); | |
731 | card->sndcount[channel] += len; | |
732 | spin_unlock_irqrestore(&card->lock, flags); | |
733 | } | |
734 | return len; | |
735 | } | |
736 | ||
737 | /* | |
738 | * Check card's status after starting the bootstrap loader. | |
739 | * On entry, the card's shared memory has already to be mapped. | |
740 | * Return: | |
741 | * 0 on success (Boot loader ready) | |
742 | * -EIO on failure (timeout) | |
743 | */ | |
744 | static int | |
745 | icn_check_loader(int cardnumber) | |
746 | { | |
747 | int timer = 0; | |
748 | ||
749 | while (1) { | |
750 | #ifdef BOOT_DEBUG | |
751 | printk(KERN_DEBUG "Loader %d ?\n", cardnumber); | |
752 | #endif | |
753 | if (readb(&dev.shmem->data_control.scns) || | |
754 | readb(&dev.shmem->data_control.scnr)) { | |
755 | if (timer++ > 5) { | |
756 | printk(KERN_WARNING | |
757 | "icn: Boot-Loader %d timed out.\n", | |
758 | cardnumber); | |
759 | icn_release_channel(); | |
760 | return -EIO; | |
761 | } | |
762 | #ifdef BOOT_DEBUG | |
763 | printk(KERN_DEBUG "Loader %d TO?\n", cardnumber); | |
764 | #endif | |
765 | msleep_interruptible(ICN_BOOT_TIMEOUT1); | |
766 | } else { | |
767 | #ifdef BOOT_DEBUG | |
768 | printk(KERN_DEBUG "Loader %d OK\n", cardnumber); | |
769 | #endif | |
770 | icn_release_channel(); | |
771 | return 0; | |
772 | } | |
773 | } | |
774 | } | |
775 | ||
776 | /* Load the boot-code into the interface-card's memory and start it. | |
777 | * Always called from user-process. | |
778 | * | |
779 | * Parameters: | |
780 | * buffer = pointer to packet | |
781 | * Return: | |
782 | * 0 if successfully loaded | |
783 | */ | |
784 | ||
785 | #ifdef BOOT_DEBUG | |
786 | #define SLEEP(sec) { \ | |
787 | int slsec = sec; \ | |
788 | printk(KERN_DEBUG "SLEEP(%d)\n",slsec); \ | |
789 | while (slsec) { \ | |
790 | msleep_interruptible(1000); \ | |
791 | slsec--; \ | |
792 | } \ | |
793 | } | |
794 | #else | |
795 | #define SLEEP(sec) | |
796 | #endif | |
797 | ||
798 | static int | |
799 | icn_loadboot(u_char __user * buffer, icn_card * card) | |
800 | { | |
801 | int ret; | |
802 | u_char *codebuf; | |
803 | unsigned long flags; | |
804 | ||
805 | #ifdef BOOT_DEBUG | |
806 | printk(KERN_DEBUG "icn_loadboot called, buffaddr=%08lx\n", (ulong) buffer); | |
807 | #endif | |
808 | if (!(codebuf = kmalloc(ICN_CODE_STAGE1, GFP_KERNEL))) { | |
809 | printk(KERN_WARNING "icn: Could not allocate code buffer\n"); | |
810 | ret = -ENOMEM; | |
811 | goto out; | |
812 | } | |
813 | if (copy_from_user(codebuf, buffer, ICN_CODE_STAGE1)) { | |
814 | ret = -EFAULT; | |
815 | goto out_kfree; | |
816 | } | |
817 | if (!card->rvalid) { | |
818 | if (!request_region(card->port, ICN_PORTLEN, card->regname)) { | |
819 | printk(KERN_WARNING | |
820 | "icn: (%s) ports 0x%03x-0x%03x in use.\n", | |
821 | CID, | |
822 | card->port, | |
823 | card->port + ICN_PORTLEN); | |
824 | ret = -EBUSY; | |
825 | goto out_kfree; | |
826 | } | |
827 | card->rvalid = 1; | |
828 | if (card->doubleS0) | |
829 | card->other->rvalid = 1; | |
830 | } | |
831 | if (!dev.mvalid) { | |
832 | if (!request_mem_region(dev.memaddr, 0x4000, "icn-isdn (all cards)")) { | |
833 | printk(KERN_WARNING | |
834 | "icn: memory at 0x%08lx in use.\n", dev.memaddr); | |
835 | ret = -EBUSY; | |
836 | goto out_kfree; | |
837 | } | |
838 | dev.shmem = ioremap(dev.memaddr, 0x4000); | |
839 | dev.mvalid = 1; | |
840 | } | |
841 | OUTB_P(0, ICN_RUN); /* Reset Controller */ | |
842 | OUTB_P(0, ICN_MAPRAM); /* Disable RAM */ | |
843 | icn_shiftout(ICN_CFG, 0x0f, 3, 4); /* Windowsize= 16k */ | |
844 | icn_shiftout(ICN_CFG, dev.memaddr, 23, 10); /* Set RAM-Addr. */ | |
845 | #ifdef BOOT_DEBUG | |
846 | printk(KERN_DEBUG "shmem=%08lx\n", dev.memaddr); | |
847 | #endif | |
848 | SLEEP(1); | |
849 | #ifdef BOOT_DEBUG | |
850 | printk(KERN_DEBUG "Map Bank 0\n"); | |
851 | #endif | |
852 | spin_lock_irqsave(&dev.devlock, flags); | |
853 | icn_map_channel(card, 0); /* Select Bank 0 */ | |
854 | icn_lock_channel(card, 0); /* Lock Bank 0 */ | |
855 | spin_unlock_irqrestore(&dev.devlock, flags); | |
856 | SLEEP(1); | |
857 | memcpy_toio(dev.shmem, codebuf, ICN_CODE_STAGE1); /* Copy code */ | |
858 | #ifdef BOOT_DEBUG | |
859 | printk(KERN_DEBUG "Bootloader transferred\n"); | |
860 | #endif | |
861 | if (card->doubleS0) { | |
862 | SLEEP(1); | |
863 | #ifdef BOOT_DEBUG | |
864 | printk(KERN_DEBUG "Map Bank 8\n"); | |
865 | #endif | |
866 | spin_lock_irqsave(&dev.devlock, flags); | |
867 | __icn_release_channel(); | |
868 | icn_map_channel(card, 2); /* Select Bank 8 */ | |
869 | icn_lock_channel(card, 2); /* Lock Bank 8 */ | |
870 | spin_unlock_irqrestore(&dev.devlock, flags); | |
871 | SLEEP(1); | |
872 | memcpy_toio(dev.shmem, codebuf, ICN_CODE_STAGE1); /* Copy code */ | |
873 | #ifdef BOOT_DEBUG | |
874 | printk(KERN_DEBUG "Bootloader transferred\n"); | |
875 | #endif | |
876 | } | |
877 | SLEEP(1); | |
878 | OUTB_P(0xff, ICN_RUN); /* Start Boot-Code */ | |
879 | if ((ret = icn_check_loader(card->doubleS0 ? 2 : 1))) { | |
880 | goto out_kfree; | |
881 | } | |
882 | if (!card->doubleS0) { | |
883 | ret = 0; | |
884 | goto out_kfree; | |
885 | } | |
886 | /* reached only, if we have a Double-S0-Card */ | |
887 | #ifdef BOOT_DEBUG | |
888 | printk(KERN_DEBUG "Map Bank 0\n"); | |
889 | #endif | |
890 | spin_lock_irqsave(&dev.devlock, flags); | |
891 | icn_map_channel(card, 0); /* Select Bank 0 */ | |
892 | icn_lock_channel(card, 0); /* Lock Bank 0 */ | |
893 | spin_unlock_irqrestore(&dev.devlock, flags); | |
894 | SLEEP(1); | |
895 | ret = (icn_check_loader(1)); | |
896 | ||
897 | out_kfree: | |
898 | kfree(codebuf); | |
899 | out: | |
900 | return ret; | |
901 | } | |
902 | ||
903 | static int | |
904 | icn_loadproto(u_char __user * buffer, icn_card * card) | |
905 | { | |
906 | register u_char __user *p = buffer; | |
907 | u_char codebuf[256]; | |
908 | uint left = ICN_CODE_STAGE2; | |
909 | uint cnt; | |
910 | int timer; | |
911 | unsigned long flags; | |
912 | ||
913 | #ifdef BOOT_DEBUG | |
914 | printk(KERN_DEBUG "icn_loadproto called\n"); | |
915 | #endif | |
916 | if (!access_ok(VERIFY_READ, buffer, ICN_CODE_STAGE2)) | |
917 | return -EFAULT; | |
918 | timer = 0; | |
919 | spin_lock_irqsave(&dev.devlock, flags); | |
920 | if (card->secondhalf) { | |
921 | icn_map_channel(card, 2); | |
922 | icn_lock_channel(card, 2); | |
923 | } else { | |
924 | icn_map_channel(card, 0); | |
925 | icn_lock_channel(card, 0); | |
926 | } | |
927 | spin_unlock_irqrestore(&dev.devlock, flags); | |
928 | while (left) { | |
929 | if (sbfree) { /* If there is a free buffer... */ | |
930 | cnt = left; | |
931 | if (cnt > 256) | |
932 | cnt = 256; | |
933 | if (copy_from_user(codebuf, p, cnt)) { | |
934 | icn_maprelease_channel(card, 0); | |
935 | return -EFAULT; | |
936 | } | |
937 | memcpy_toio(&sbuf_l, codebuf, cnt); /* copy data */ | |
938 | sbnext; /* switch to next buffer */ | |
939 | p += cnt; | |
940 | left -= cnt; | |
941 | timer = 0; | |
942 | } else { | |
943 | #ifdef BOOT_DEBUG | |
944 | printk(KERN_DEBUG "boot 2 !sbfree\n"); | |
945 | #endif | |
946 | if (timer++ > 5) { | |
947 | icn_maprelease_channel(card, 0); | |
948 | return -EIO; | |
949 | } | |
950 | set_current_state(TASK_INTERRUPTIBLE); | |
951 | schedule_timeout(10); | |
952 | } | |
953 | } | |
954 | writeb(0x20, &sbuf_n); | |
955 | timer = 0; | |
956 | while (1) { | |
957 | if (readb(&cmd_o) || readb(&cmd_i)) { | |
958 | #ifdef BOOT_DEBUG | |
959 | printk(KERN_DEBUG "Proto?\n"); | |
960 | #endif | |
961 | if (timer++ > 5) { | |
962 | printk(KERN_WARNING | |
963 | "icn: (%s) Protocol timed out.\n", | |
964 | CID); | |
965 | #ifdef BOOT_DEBUG | |
966 | printk(KERN_DEBUG "Proto TO!\n"); | |
967 | #endif | |
968 | icn_maprelease_channel(card, 0); | |
969 | return -EIO; | |
970 | } | |
971 | #ifdef BOOT_DEBUG | |
972 | printk(KERN_DEBUG "Proto TO?\n"); | |
973 | #endif | |
974 | msleep_interruptible(ICN_BOOT_TIMEOUT1); | |
975 | } else { | |
976 | if ((card->secondhalf) || (!card->doubleS0)) { | |
977 | #ifdef BOOT_DEBUG | |
978 | printk(KERN_DEBUG "Proto loaded, install poll-timer %d\n", | |
979 | card->secondhalf); | |
980 | #endif | |
981 | spin_lock_irqsave(&card->lock, flags); | |
982 | init_timer(&card->st_timer); | |
983 | card->st_timer.expires = jiffies + ICN_TIMER_DCREAD; | |
984 | card->st_timer.function = icn_polldchan; | |
985 | card->st_timer.data = (unsigned long) card; | |
986 | add_timer(&card->st_timer); | |
987 | card->flags |= ICN_FLAGS_RUNNING; | |
988 | if (card->doubleS0) { | |
989 | init_timer(&card->other->st_timer); | |
990 | card->other->st_timer.expires = jiffies + ICN_TIMER_DCREAD; | |
991 | card->other->st_timer.function = icn_polldchan; | |
992 | card->other->st_timer.data = (unsigned long) card->other; | |
993 | add_timer(&card->other->st_timer); | |
994 | card->other->flags |= ICN_FLAGS_RUNNING; | |
995 | } | |
996 | spin_unlock_irqrestore(&card->lock, flags); | |
997 | } | |
998 | icn_maprelease_channel(card, 0); | |
999 | return 0; | |
1000 | } | |
1001 | } | |
1002 | } | |
1003 | ||
1004 | /* Read the Status-replies from the Interface */ | |
1005 | static int | |
1006 | icn_readstatus(u_char __user *buf, int len, icn_card * card) | |
1007 | { | |
1008 | int count; | |
1009 | u_char __user *p; | |
1010 | ||
1011 | for (p = buf, count = 0; count < len; p++, count++) { | |
1012 | if (card->msg_buf_read == card->msg_buf_write) | |
1013 | return count; | |
1014 | put_user(*card->msg_buf_read++, p); | |
1015 | if (card->msg_buf_read > card->msg_buf_end) | |
1016 | card->msg_buf_read = card->msg_buf; | |
1017 | } | |
1018 | return count; | |
1019 | } | |
1020 | ||
1021 | /* Put command-strings into the command-queue of the Interface */ | |
1022 | static int | |
1023 | icn_writecmd(const u_char * buf, int len, int user, icn_card * card) | |
1024 | { | |
1025 | int mch = card->secondhalf ? 2 : 0; | |
1026 | int pp; | |
1027 | int i; | |
1028 | int count; | |
1029 | int xcount; | |
1030 | int ocount; | |
1031 | int loop; | |
1032 | unsigned long flags; | |
1033 | int lastmap_channel; | |
1034 | struct icn_card *lastmap_card; | |
1035 | u_char *p; | |
1036 | isdn_ctrl cmd; | |
1037 | u_char msg[0x100]; | |
1038 | ||
1039 | ocount = 1; | |
1040 | xcount = loop = 0; | |
1041 | while (len) { | |
1042 | count = cmd_free; | |
1043 | if (count > len) | |
1044 | count = len; | |
1045 | if (user) { | |
1046 | if (copy_from_user(msg, buf, count)) | |
1047 | return -EFAULT; | |
1048 | } else | |
1049 | memcpy(msg, buf, count); | |
1050 | ||
1051 | spin_lock_irqsave(&dev.devlock, flags); | |
1052 | lastmap_card = dev.mcard; | |
1053 | lastmap_channel = dev.channel; | |
1054 | icn_map_channel(card, mch); | |
1055 | ||
1056 | icn_putmsg(card, '>'); | |
1057 | for (p = msg, pp = readb(&cmd_i), i = count; i > 0; i--, p++, pp | |
1058 | ++) { | |
1059 | writeb((*p == '\n') ? 0xff : *p, | |
1060 | &dev.shmem->comm_buffers.pcio_buf[pp & 0xff]); | |
1061 | len--; | |
1062 | xcount++; | |
1063 | icn_putmsg(card, *p); | |
1064 | if ((*p == '\n') && (i > 1)) { | |
1065 | icn_putmsg(card, '>'); | |
1066 | ocount++; | |
1067 | } | |
1068 | ocount++; | |
1069 | } | |
1070 | writeb((readb(&cmd_i) + count) & 0xff, &cmd_i); | |
1071 | if (lastmap_card) | |
1072 | icn_map_channel(lastmap_card, lastmap_channel); | |
1073 | spin_unlock_irqrestore(&dev.devlock, flags); | |
1074 | if (len) { | |
1075 | mdelay(1); | |
1076 | if (loop++ > 20) | |
1077 | break; | |
1078 | } else | |
1079 | break; | |
1080 | } | |
1081 | if (len && (!user)) | |
1082 | printk(KERN_WARNING "icn: writemsg incomplete!\n"); | |
1083 | cmd.command = ISDN_STAT_STAVAIL; | |
1084 | cmd.driver = card->myid; | |
1085 | cmd.arg = ocount; | |
1086 | card->interface.statcallb(&cmd); | |
1087 | return xcount; | |
1088 | } | |
1089 | ||
1090 | /* | |
1091 | * Delete card's pending timers, send STOP to linklevel | |
1092 | */ | |
1093 | static void | |
1094 | icn_stopcard(icn_card * card) | |
1095 | { | |
1096 | unsigned long flags; | |
1097 | isdn_ctrl cmd; | |
1098 | ||
1099 | spin_lock_irqsave(&card->lock, flags); | |
1100 | if (card->flags & ICN_FLAGS_RUNNING) { | |
1101 | card->flags &= ~ICN_FLAGS_RUNNING; | |
1102 | del_timer(&card->st_timer); | |
1103 | del_timer(&card->rb_timer); | |
1104 | spin_unlock_irqrestore(&card->lock, flags); | |
1105 | cmd.command = ISDN_STAT_STOP; | |
1106 | cmd.driver = card->myid; | |
1107 | card->interface.statcallb(&cmd); | |
1108 | if (card->doubleS0) | |
1109 | icn_stopcard(card->other); | |
1110 | } else | |
1111 | spin_unlock_irqrestore(&card->lock, flags); | |
1112 | } | |
1113 | ||
1114 | static void | |
1115 | icn_stopallcards(void) | |
1116 | { | |
1117 | icn_card *p = cards; | |
1118 | ||
1119 | while (p) { | |
1120 | icn_stopcard(p); | |
1121 | p = p->next; | |
1122 | } | |
1123 | } | |
1124 | ||
1125 | /* | |
1126 | * Unmap all cards, because some of them may be mapped accidetly during | |
1127 | * autoprobing of some network drivers (SMC-driver?) | |
1128 | */ | |
1129 | static void | |
1130 | icn_disable_cards(void) | |
1131 | { | |
1132 | icn_card *card = cards; | |
1133 | ||
1134 | while (card) { | |
1135 | if (!request_region(card->port, ICN_PORTLEN, "icn-isdn")) { | |
1136 | printk(KERN_WARNING | |
1137 | "icn: (%s) ports 0x%03x-0x%03x in use.\n", | |
1138 | CID, | |
1139 | card->port, | |
1140 | card->port + ICN_PORTLEN); | |
1141 | } else { | |
1142 | OUTB_P(0, ICN_RUN); /* Reset Controller */ | |
1143 | OUTB_P(0, ICN_MAPRAM); /* Disable RAM */ | |
1144 | release_region(card->port, ICN_PORTLEN); | |
1145 | } | |
1146 | card = card->next; | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | static int | |
1151 | icn_command(isdn_ctrl * c, icn_card * card) | |
1152 | { | |
1153 | ulong a; | |
1154 | ulong flags; | |
1155 | int i; | |
1156 | char cbuf[60]; | |
1157 | isdn_ctrl cmd; | |
1158 | icn_cdef cdef; | |
1159 | char __user *arg; | |
1160 | ||
1161 | switch (c->command) { | |
1162 | case ISDN_CMD_IOCTL: | |
1163 | memcpy(&a, c->parm.num, sizeof(ulong)); | |
1164 | arg = (char __user *)a; | |
1165 | switch (c->arg) { | |
1166 | case ICN_IOCTL_SETMMIO: | |
1167 | if (dev.memaddr != (a & 0x0ffc000)) { | |
1168 | if (!request_mem_region(a & 0x0ffc000, 0x4000, "icn-isdn (all cards)")) { | |
1169 | printk(KERN_WARNING | |
1170 | "icn: memory at 0x%08lx in use.\n", | |
1171 | a & 0x0ffc000); | |
1172 | return -EINVAL; | |
1173 | } | |
1174 | release_mem_region(a & 0x0ffc000, 0x4000); | |
1175 | icn_stopallcards(); | |
1176 | spin_lock_irqsave(&card->lock, flags); | |
1177 | if (dev.mvalid) { | |
1178 | iounmap(dev.shmem); | |
1179 | release_mem_region(dev.memaddr, 0x4000); | |
1180 | } | |
1181 | dev.mvalid = 0; | |
1182 | dev.memaddr = a & 0x0ffc000; | |
1183 | spin_unlock_irqrestore(&card->lock, flags); | |
1184 | printk(KERN_INFO | |
1185 | "icn: (%s) mmio set to 0x%08lx\n", | |
1186 | CID, | |
1187 | dev.memaddr); | |
1188 | } | |
1189 | break; | |
1190 | case ICN_IOCTL_GETMMIO: | |
1191 | return (long) dev.memaddr; | |
1192 | case ICN_IOCTL_SETPORT: | |
1193 | if (a == 0x300 || a == 0x310 || a == 0x320 || a == 0x330 | |
1194 | || a == 0x340 || a == 0x350 || a == 0x360 || | |
1195 | a == 0x308 || a == 0x318 || a == 0x328 || a == 0x338 | |
1196 | || a == 0x348 || a == 0x358 || a == 0x368) { | |
1197 | if (card->port != (unsigned short) a) { | |
1198 | if (!request_region((unsigned short) a, ICN_PORTLEN, "icn-isdn")) { | |
1199 | printk(KERN_WARNING | |
1200 | "icn: (%s) ports 0x%03x-0x%03x in use.\n", | |
1201 | CID, (int) a, (int) a + ICN_PORTLEN); | |
1202 | return -EINVAL; | |
1203 | } | |
1204 | release_region((unsigned short) a, ICN_PORTLEN); | |
1205 | icn_stopcard(card); | |
1206 | spin_lock_irqsave(&card->lock, flags); | |
1207 | if (card->rvalid) | |
1208 | release_region(card->port, ICN_PORTLEN); | |
1209 | card->port = (unsigned short) a; | |
1210 | card->rvalid = 0; | |
1211 | if (card->doubleS0) { | |
1212 | card->other->port = (unsigned short) a; | |
1213 | card->other->rvalid = 0; | |
1214 | } | |
1215 | spin_unlock_irqrestore(&card->lock, flags); | |
1216 | printk(KERN_INFO | |
1217 | "icn: (%s) port set to 0x%03x\n", | |
1218 | CID, card->port); | |
1219 | } | |
1220 | } else | |
1221 | return -EINVAL; | |
1222 | break; | |
1223 | case ICN_IOCTL_GETPORT: | |
1224 | return (int) card->port; | |
1225 | case ICN_IOCTL_GETDOUBLE: | |
1226 | return (int) card->doubleS0; | |
1227 | case ICN_IOCTL_DEBUGVAR: | |
1228 | if (copy_to_user(arg, | |
1229 | &card, | |
1230 | sizeof(ulong))) | |
1231 | return -EFAULT; | |
1232 | a += sizeof(ulong); | |
1233 | { | |
1234 | ulong l = (ulong) & dev; | |
1235 | if (copy_to_user(arg, | |
1236 | &l, | |
1237 | sizeof(ulong))) | |
1238 | return -EFAULT; | |
1239 | } | |
1240 | return 0; | |
1241 | case ICN_IOCTL_LOADBOOT: | |
1242 | if (dev.firstload) { | |
1243 | icn_disable_cards(); | |
1244 | dev.firstload = 0; | |
1245 | } | |
1246 | icn_stopcard(card); | |
1247 | return (icn_loadboot(arg, card)); | |
1248 | case ICN_IOCTL_LOADPROTO: | |
1249 | icn_stopcard(card); | |
1250 | if ((i = (icn_loadproto(arg, card)))) | |
1251 | return i; | |
1252 | if (card->doubleS0) | |
1253 | i = icn_loadproto(arg + ICN_CODE_STAGE2, card->other); | |
1254 | return i; | |
1255 | break; | |
1256 | case ICN_IOCTL_ADDCARD: | |
1257 | if (!dev.firstload) | |
1258 | return -EBUSY; | |
1259 | if (copy_from_user(&cdef, | |
1260 | arg, | |
1261 | sizeof(cdef))) | |
1262 | return -EFAULT; | |
1263 | return (icn_addcard(cdef.port, cdef.id1, cdef.id2)); | |
1264 | break; | |
1265 | case ICN_IOCTL_LEASEDCFG: | |
1266 | if (a) { | |
1267 | if (!card->leased) { | |
1268 | card->leased = 1; | |
1269 | while (card->ptype == ISDN_PTYPE_UNKNOWN) { | |
1270 | msleep_interruptible(ICN_BOOT_TIMEOUT1); | |
1271 | } | |
1272 | msleep_interruptible(ICN_BOOT_TIMEOUT1); | |
1273 | sprintf(cbuf, "00;FV2ON\n01;EAZ%c\n02;EAZ%c\n", | |
1274 | (a & 1)?'1':'C', (a & 2)?'2':'C'); | |
1275 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1276 | printk(KERN_INFO | |
1277 | "icn: (%s) Leased-line mode enabled\n", | |
1278 | CID); | |
1279 | cmd.command = ISDN_STAT_RUN; | |
1280 | cmd.driver = card->myid; | |
1281 | cmd.arg = 0; | |
1282 | card->interface.statcallb(&cmd); | |
1283 | } | |
1284 | } else { | |
1285 | if (card->leased) { | |
1286 | card->leased = 0; | |
1287 | sprintf(cbuf, "00;FV2OFF\n"); | |
1288 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1289 | printk(KERN_INFO | |
1290 | "icn: (%s) Leased-line mode disabled\n", | |
1291 | CID); | |
1292 | cmd.command = ISDN_STAT_RUN; | |
1293 | cmd.driver = card->myid; | |
1294 | cmd.arg = 0; | |
1295 | card->interface.statcallb(&cmd); | |
1296 | } | |
1297 | } | |
1298 | return 0; | |
1299 | default: | |
1300 | return -EINVAL; | |
1301 | } | |
1302 | break; | |
1303 | case ISDN_CMD_DIAL: | |
1304 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1305 | return -ENODEV; | |
1306 | if (card->leased) | |
1307 | break; | |
1308 | if ((c->arg & 255) < ICN_BCH) { | |
1309 | char *p; | |
1310 | char dial[50]; | |
1311 | char dcode[4]; | |
1312 | ||
1313 | a = c->arg; | |
1314 | p = c->parm.setup.phone; | |
1315 | if (*p == 's' || *p == 'S') { | |
1316 | /* Dial for SPV */ | |
1317 | p++; | |
1318 | strcpy(dcode, "SCA"); | |
1319 | } else | |
1320 | /* Normal Dial */ | |
1321 | strcpy(dcode, "CAL"); | |
1322 | strcpy(dial, p); | |
1323 | sprintf(cbuf, "%02d;D%s_R%s,%02d,%02d,%s\n", (int) (a + 1), | |
1324 | dcode, dial, c->parm.setup.si1, | |
1325 | c->parm.setup.si2, c->parm.setup.eazmsn); | |
1326 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1327 | } | |
1328 | break; | |
1329 | case ISDN_CMD_ACCEPTD: | |
1330 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1331 | return -ENODEV; | |
1332 | if (c->arg < ICN_BCH) { | |
1333 | a = c->arg + 1; | |
1334 | if (card->fw_rev >= 300) { | |
1335 | switch (card->l2_proto[a - 1]) { | |
1336 | case ISDN_PROTO_L2_X75I: | |
1337 | sprintf(cbuf, "%02d;BX75\n", (int) a); | |
1338 | break; | |
1339 | case ISDN_PROTO_L2_HDLC: | |
1340 | sprintf(cbuf, "%02d;BTRA\n", (int) a); | |
1341 | break; | |
1342 | } | |
1343 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1344 | } | |
1345 | sprintf(cbuf, "%02d;DCON_R\n", (int) a); | |
1346 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1347 | } | |
1348 | break; | |
1349 | case ISDN_CMD_ACCEPTB: | |
1350 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1351 | return -ENODEV; | |
1352 | if (c->arg < ICN_BCH) { | |
1353 | a = c->arg + 1; | |
1354 | if (card->fw_rev >= 300) | |
1355 | switch (card->l2_proto[a - 1]) { | |
1356 | case ISDN_PROTO_L2_X75I: | |
1357 | sprintf(cbuf, "%02d;BCON_R,BX75\n", (int) a); | |
1358 | break; | |
1359 | case ISDN_PROTO_L2_HDLC: | |
1360 | sprintf(cbuf, "%02d;BCON_R,BTRA\n", (int) a); | |
1361 | break; | |
1362 | } else | |
1363 | sprintf(cbuf, "%02d;BCON_R\n", (int) a); | |
1364 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1365 | } | |
1366 | break; | |
1367 | case ISDN_CMD_HANGUP: | |
1368 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1369 | return -ENODEV; | |
1370 | if (c->arg < ICN_BCH) { | |
1371 | a = c->arg + 1; | |
1372 | sprintf(cbuf, "%02d;BDIS_R\n%02d;DDIS_R\n", (int) a, (int) a); | |
1373 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1374 | } | |
1375 | break; | |
1376 | case ISDN_CMD_SETEAZ: | |
1377 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1378 | return -ENODEV; | |
1379 | if (card->leased) | |
1380 | break; | |
1381 | if (c->arg < ICN_BCH) { | |
1382 | a = c->arg + 1; | |
1383 | if (card->ptype == ISDN_PTYPE_EURO) { | |
1384 | sprintf(cbuf, "%02d;MS%s%s\n", (int) a, | |
1385 | c->parm.num[0] ? "N" : "ALL", c->parm.num); | |
1386 | } else | |
1387 | sprintf(cbuf, "%02d;EAZ%s\n", (int) a, | |
1388 | c->parm.num[0] ? (char *)(c->parm.num) : "0123456789"); | |
1389 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1390 | } | |
1391 | break; | |
1392 | case ISDN_CMD_CLREAZ: | |
1393 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1394 | return -ENODEV; | |
1395 | if (card->leased) | |
1396 | break; | |
1397 | if (c->arg < ICN_BCH) { | |
1398 | a = c->arg + 1; | |
1399 | if (card->ptype == ISDN_PTYPE_EURO) | |
1400 | sprintf(cbuf, "%02d;MSNC\n", (int) a); | |
1401 | else | |
1402 | sprintf(cbuf, "%02d;EAZC\n", (int) a); | |
1403 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1404 | } | |
1405 | break; | |
1406 | case ISDN_CMD_SETL2: | |
1407 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1408 | return -ENODEV; | |
1409 | if ((c->arg & 255) < ICN_BCH) { | |
1410 | a = c->arg; | |
1411 | switch (a >> 8) { | |
1412 | case ISDN_PROTO_L2_X75I: | |
1413 | sprintf(cbuf, "%02d;BX75\n", (int) (a & 255) + 1); | |
1414 | break; | |
1415 | case ISDN_PROTO_L2_HDLC: | |
1416 | sprintf(cbuf, "%02d;BTRA\n", (int) (a & 255) + 1); | |
1417 | break; | |
1418 | default: | |
1419 | return -EINVAL; | |
1420 | } | |
1421 | i = icn_writecmd(cbuf, strlen(cbuf), 0, card); | |
1422 | card->l2_proto[a & 255] = (a >> 8); | |
1423 | } | |
1424 | break; | |
1425 | case ISDN_CMD_SETL3: | |
1426 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1427 | return -ENODEV; | |
1428 | return 0; | |
1429 | default: | |
1430 | return -EINVAL; | |
1431 | } | |
1432 | return 0; | |
1433 | } | |
1434 | ||
1435 | /* | |
1436 | * Find card with given driverId | |
1437 | */ | |
1438 | static inline icn_card * | |
1439 | icn_findcard(int driverid) | |
1440 | { | |
1441 | icn_card *p = cards; | |
1442 | ||
1443 | while (p) { | |
1444 | if (p->myid == driverid) | |
1445 | return p; | |
1446 | p = p->next; | |
1447 | } | |
1448 | return (icn_card *) 0; | |
1449 | } | |
1450 | ||
1451 | /* | |
1452 | * Wrapper functions for interface to linklevel | |
1453 | */ | |
1454 | static int | |
1455 | if_command(isdn_ctrl * c) | |
1456 | { | |
1457 | icn_card *card = icn_findcard(c->driver); | |
1458 | ||
1459 | if (card) | |
1460 | return (icn_command(c, card)); | |
1461 | printk(KERN_ERR | |
1462 | "icn: if_command %d called with invalid driverId %d!\n", | |
1463 | c->command, c->driver); | |
1464 | return -ENODEV; | |
1465 | } | |
1466 | ||
1467 | static int | |
1468 | if_writecmd(const u_char __user *buf, int len, int id, int channel) | |
1469 | { | |
1470 | icn_card *card = icn_findcard(id); | |
1471 | ||
1472 | if (card) { | |
1473 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1474 | return -ENODEV; | |
1475 | return (icn_writecmd(buf, len, 1, card)); | |
1476 | } | |
1477 | printk(KERN_ERR | |
1478 | "icn: if_writecmd called with invalid driverId!\n"); | |
1479 | return -ENODEV; | |
1480 | } | |
1481 | ||
1482 | static int | |
1483 | if_readstatus(u_char __user *buf, int len, int id, int channel) | |
1484 | { | |
1485 | icn_card *card = icn_findcard(id); | |
1486 | ||
1487 | if (card) { | |
1488 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1489 | return -ENODEV; | |
1490 | return (icn_readstatus(buf, len, card)); | |
1491 | } | |
1492 | printk(KERN_ERR | |
1493 | "icn: if_readstatus called with invalid driverId!\n"); | |
1494 | return -ENODEV; | |
1495 | } | |
1496 | ||
1497 | static int | |
1498 | if_sendbuf(int id, int channel, int ack, struct sk_buff *skb) | |
1499 | { | |
1500 | icn_card *card = icn_findcard(id); | |
1501 | ||
1502 | if (card) { | |
1503 | if (!card->flags & ICN_FLAGS_RUNNING) | |
1504 | return -ENODEV; | |
1505 | return (icn_sendbuf(channel, ack, skb, card)); | |
1506 | } | |
1507 | printk(KERN_ERR | |
1508 | "icn: if_sendbuf called with invalid driverId!\n"); | |
1509 | return -ENODEV; | |
1510 | } | |
1511 | ||
1512 | /* | |
1513 | * Allocate a new card-struct, initialize it | |
1514 | * link it into cards-list and register it at linklevel. | |
1515 | */ | |
1516 | static icn_card * | |
1517 | icn_initcard(int port, char *id) | |
1518 | { | |
1519 | icn_card *card; | |
1520 | int i; | |
1521 | ||
1522 | if (!(card = (icn_card *) kmalloc(sizeof(icn_card), GFP_KERNEL))) { | |
1523 | printk(KERN_WARNING | |
1524 | "icn: (%s) Could not allocate card-struct.\n", id); | |
1525 | return (icn_card *) 0; | |
1526 | } | |
1527 | memset((char *) card, 0, sizeof(icn_card)); | |
1528 | spin_lock_init(&card->lock); | |
1529 | card->port = port; | |
1530 | card->interface.owner = THIS_MODULE; | |
1531 | card->interface.hl_hdrlen = 1; | |
1532 | card->interface.channels = ICN_BCH; | |
1533 | card->interface.maxbufsize = 4000; | |
1534 | card->interface.command = if_command; | |
1535 | card->interface.writebuf_skb = if_sendbuf; | |
1536 | card->interface.writecmd = if_writecmd; | |
1537 | card->interface.readstat = if_readstatus; | |
1538 | card->interface.features = ISDN_FEATURE_L2_X75I | | |
1539 | ISDN_FEATURE_L2_HDLC | | |
1540 | ISDN_FEATURE_L3_TRANS | | |
1541 | ISDN_FEATURE_P_UNKNOWN; | |
1542 | card->ptype = ISDN_PTYPE_UNKNOWN; | |
1543 | strlcpy(card->interface.id, id, sizeof(card->interface.id)); | |
1544 | card->msg_buf_write = card->msg_buf; | |
1545 | card->msg_buf_read = card->msg_buf; | |
1546 | card->msg_buf_end = &card->msg_buf[sizeof(card->msg_buf) - 1]; | |
1547 | for (i = 0; i < ICN_BCH; i++) { | |
1548 | card->l2_proto[i] = ISDN_PROTO_L2_X75I; | |
1549 | skb_queue_head_init(&card->spqueue[i]); | |
1550 | } | |
1551 | card->next = cards; | |
1552 | cards = card; | |
1553 | if (!register_isdn(&card->interface)) { | |
1554 | cards = cards->next; | |
1555 | printk(KERN_WARNING | |
1556 | "icn: Unable to register %s\n", id); | |
1557 | kfree(card); | |
1558 | return (icn_card *) 0; | |
1559 | } | |
1560 | card->myid = card->interface.channels; | |
1561 | sprintf(card->regname, "icn-isdn (%s)", card->interface.id); | |
1562 | return card; | |
1563 | } | |
1564 | ||
1565 | static int | |
1566 | icn_addcard(int port, char *id1, char *id2) | |
1567 | { | |
1568 | icn_card *card; | |
1569 | icn_card *card2; | |
1570 | ||
1571 | if (!(card = icn_initcard(port, id1))) { | |
1572 | return -EIO; | |
1573 | } | |
1574 | if (!strlen(id2)) { | |
1575 | printk(KERN_INFO | |
1576 | "icn: (%s) ICN-2B, port 0x%x added\n", | |
1577 | card->interface.id, port); | |
1578 | return 0; | |
1579 | } | |
1580 | if (!(card2 = icn_initcard(port, id2))) { | |
1581 | printk(KERN_INFO | |
1582 | "icn: (%s) half ICN-4B, port 0x%x added\n", | |
1583 | card2->interface.id, port); | |
1584 | return 0; | |
1585 | } | |
1586 | card->doubleS0 = 1; | |
1587 | card->secondhalf = 0; | |
1588 | card->other = card2; | |
1589 | card2->doubleS0 = 1; | |
1590 | card2->secondhalf = 1; | |
1591 | card2->other = card; | |
1592 | printk(KERN_INFO | |
1593 | "icn: (%s and %s) ICN-4B, port 0x%x added\n", | |
1594 | card->interface.id, card2->interface.id, port); | |
1595 | return 0; | |
1596 | } | |
1597 | ||
1598 | #ifndef MODULE | |
1599 | static int __init | |
1600 | icn_setup(char *line) | |
1601 | { | |
1602 | char *p, *str; | |
1603 | int ints[3]; | |
1604 | static char sid[20]; | |
1605 | static char sid2[20]; | |
1606 | ||
1607 | str = get_options(line, 2, ints); | |
1608 | if (ints[0]) | |
1609 | portbase = ints[1]; | |
1610 | if (ints[0] > 1) | |
1611 | membase = (unsigned long)ints[2]; | |
1612 | if (str && *str) { | |
1613 | strcpy(sid, str); | |
1614 | icn_id = sid; | |
1615 | if ((p = strchr(sid, ','))) { | |
1616 | *p++ = 0; | |
1617 | strcpy(sid2, p); | |
1618 | icn_id2 = sid2; | |
1619 | } | |
1620 | } | |
1621 | return(1); | |
1622 | } | |
1623 | __setup("icn=", icn_setup); | |
1624 | #endif /* MODULE */ | |
1625 | ||
1626 | static int __init icn_init(void) | |
1627 | { | |
1628 | char *p; | |
1629 | char rev[10]; | |
1630 | ||
1631 | memset(&dev, 0, sizeof(icn_dev)); | |
1632 | dev.memaddr = (membase & 0x0ffc000); | |
1633 | dev.channel = -1; | |
1634 | dev.mcard = NULL; | |
1635 | dev.firstload = 1; | |
1636 | spin_lock_init(&dev.devlock); | |
1637 | ||
1638 | if ((p = strchr(revision, ':'))) { | |
1639 | strcpy(rev, p + 1); | |
1640 | p = strchr(rev, '$'); | |
1641 | *p = 0; | |
1642 | } else | |
1643 | strcpy(rev, " ??? "); | |
1644 | printk(KERN_NOTICE "ICN-ISDN-driver Rev%smem=0x%08lx\n", rev, | |
1645 | dev.memaddr); | |
1646 | return (icn_addcard(portbase, icn_id, icn_id2)); | |
1647 | } | |
1648 | ||
1649 | static void __exit icn_exit(void) | |
1650 | { | |
1651 | isdn_ctrl cmd; | |
1652 | icn_card *card = cards; | |
138b9dd1 | 1653 | icn_card *last, *tmpcard; |
1da177e4 LT |
1654 | int i; |
1655 | unsigned long flags; | |
1656 | ||
1657 | icn_stopallcards(); | |
1658 | while (card) { | |
1659 | cmd.command = ISDN_STAT_UNLOAD; | |
1660 | cmd.driver = card->myid; | |
1661 | card->interface.statcallb(&cmd); | |
1662 | spin_lock_irqsave(&card->lock, flags); | |
1663 | if (card->rvalid) { | |
1664 | OUTB_P(0, ICN_RUN); /* Reset Controller */ | |
1665 | OUTB_P(0, ICN_MAPRAM); /* Disable RAM */ | |
1666 | if (card->secondhalf || (!card->doubleS0)) { | |
1667 | release_region(card->port, ICN_PORTLEN); | |
1668 | card->rvalid = 0; | |
1669 | } | |
1670 | for (i = 0; i < ICN_BCH; i++) | |
1671 | icn_free_queue(card, i); | |
1672 | } | |
138b9dd1 | 1673 | tmpcard = card->next; |
1da177e4 | 1674 | spin_unlock_irqrestore(&card->lock, flags); |
138b9dd1 | 1675 | card = tmpcard; |
1da177e4 LT |
1676 | } |
1677 | card = cards; | |
1678 | cards = NULL; | |
1679 | while (card) { | |
1680 | last = card; | |
1681 | card = card->next; | |
1682 | kfree(last); | |
1683 | } | |
1684 | if (dev.mvalid) { | |
1685 | iounmap(dev.shmem); | |
1686 | release_mem_region(dev.memaddr, 0x4000); | |
1687 | } | |
1688 | printk(KERN_NOTICE "ICN-ISDN-driver unloaded\n"); | |
1689 | } | |
1690 | ||
1691 | module_init(icn_init); | |
1692 | module_exit(icn_exit); |