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1da177e4 LT |
1 | /* $Id: module.c,v 1.14.6.4 2001/09/23 22:24:32 kai Exp $ |
2 | * | |
3 | * ISDN lowlevel-module for the IBM ISDN-S0 Active 2000. | |
4 | * | |
5 | * Author Fritz Elfert | |
6 | * Copyright by Fritz Elfert <fritz@isdn4linux.de> | |
7 | * | |
8 | * This software may be used and distributed according to the terms | |
9 | * of the GNU General Public License, incorporated herein by reference. | |
10 | * | |
11 | * Thanks to Friedemann Baitinger and IBM Germany | |
12 | * | |
13 | */ | |
14 | ||
15 | #include "act2000.h" | |
16 | #include "act2000_isa.h" | |
17 | #include "capi.h" | |
18 | #include <linux/module.h> | |
19 | #include <linux/init.h> | |
20 | ||
21 | static unsigned short act2000_isa_ports[] = | |
22 | { | |
23 | 0x0200, 0x0240, 0x0280, 0x02c0, 0x0300, 0x0340, 0x0380, | |
24 | 0xcfe0, 0xcfa0, 0xcf60, 0xcf20, 0xcee0, 0xcea0, 0xce60, | |
25 | }; | |
26 | #define ISA_NRPORTS (sizeof(act2000_isa_ports)/sizeof(unsigned short)) | |
27 | ||
28 | static act2000_card *cards = (act2000_card *) NULL; | |
29 | ||
30 | /* Parameters to be set by insmod */ | |
31 | static int act_bus = 0; | |
32 | static int act_port = -1; /* -1 = Autoprobe */ | |
33 | static int act_irq = -1; | |
34 | static char *act_id = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; | |
35 | ||
36 | MODULE_DESCRIPTION( "ISDN4Linux: Driver for IBM Active 2000 ISDN card"); | |
37 | MODULE_AUTHOR( "Fritz Elfert"); | |
38 | MODULE_LICENSE( "GPL"); | |
39 | MODULE_PARM_DESC(act_bus, "BusType of first card, 1=ISA, 2=MCA, 3=PCMCIA, currently only ISA"); | |
40 | MODULE_PARM_DESC(membase, "Base port address of first card"); | |
41 | MODULE_PARM_DESC(act_irq, "IRQ of first card"); | |
42 | MODULE_PARM_DESC(act_id, "ID-String of first card"); | |
43 | module_param(act_bus, int, 0); | |
44 | module_param(act_port, int, 0); | |
45 | module_param(act_irq, int, 0); | |
46 | module_param(act_id, charp, 0); | |
47 | ||
48 | static int act2000_addcard(int, int, int, char *); | |
49 | ||
50 | static act2000_chan * | |
51 | find_channel(act2000_card *card, int channel) | |
52 | { | |
53 | if ((channel >= 0) && (channel < ACT2000_BCH)) | |
54 | return &(card->bch[channel]); | |
55 | printk(KERN_WARNING "act2000: Invalid channel %d\n", channel); | |
56 | return NULL; | |
57 | } | |
58 | ||
59 | /* | |
60 | * Free MSN list | |
61 | */ | |
62 | static void | |
63 | act2000_clear_msn(act2000_card *card) | |
64 | { | |
65 | struct msn_entry *p = card->msn_list; | |
66 | struct msn_entry *q; | |
67 | unsigned long flags; | |
68 | ||
69 | spin_lock_irqsave(&card->lock, flags); | |
70 | card->msn_list = NULL; | |
71 | spin_unlock_irqrestore(&card->lock, flags); | |
72 | while (p) { | |
73 | q = p->next; | |
74 | kfree(p); | |
75 | p = q; | |
76 | } | |
77 | } | |
78 | ||
79 | /* | |
80 | * Find an MSN entry in the list. | |
81 | * If ia5 != 0, return IA5-encoded EAZ, else | |
82 | * return a bitmask with corresponding bit set. | |
83 | */ | |
84 | static __u16 | |
85 | act2000_find_msn(act2000_card *card, char *msn, int ia5) | |
86 | { | |
87 | struct msn_entry *p = card->msn_list; | |
88 | __u8 eaz = '0'; | |
89 | ||
90 | while (p) { | |
91 | if (!strcmp(p->msn, msn)) { | |
92 | eaz = p->eaz; | |
93 | break; | |
94 | } | |
95 | p = p->next; | |
96 | } | |
97 | if (!ia5) | |
98 | return (1 << (eaz - '0')); | |
99 | else | |
100 | return eaz; | |
101 | } | |
102 | ||
103 | /* | |
104 | * Find an EAZ entry in the list. | |
105 | * return a string with corresponding msn. | |
106 | */ | |
107 | char * | |
108 | act2000_find_eaz(act2000_card *card, char eaz) | |
109 | { | |
110 | struct msn_entry *p = card->msn_list; | |
111 | ||
112 | while (p) { | |
113 | if (p->eaz == eaz) | |
114 | return(p->msn); | |
115 | p = p->next; | |
116 | } | |
117 | return("\0"); | |
118 | } | |
119 | ||
120 | /* | |
121 | * Add or delete an MSN to the MSN list | |
122 | * | |
123 | * First character of msneaz is EAZ, rest is MSN. | |
124 | * If length of eazmsn is 1, delete that entry. | |
125 | */ | |
126 | static int | |
127 | act2000_set_msn(act2000_card *card, char *eazmsn) | |
128 | { | |
129 | struct msn_entry *p = card->msn_list; | |
130 | struct msn_entry *q = NULL; | |
131 | unsigned long flags; | |
132 | int i; | |
133 | ||
134 | if (!strlen(eazmsn)) | |
135 | return 0; | |
136 | if (strlen(eazmsn) > 16) | |
137 | return -EINVAL; | |
138 | for (i = 0; i < strlen(eazmsn); i++) | |
139 | if (!isdigit(eazmsn[i])) | |
140 | return -EINVAL; | |
141 | if (strlen(eazmsn) == 1) { | |
142 | /* Delete a single MSN */ | |
143 | while (p) { | |
144 | if (p->eaz == eazmsn[0]) { | |
145 | spin_lock_irqsave(&card->lock, flags); | |
146 | if (q) | |
147 | q->next = p->next; | |
148 | else | |
149 | card->msn_list = p->next; | |
150 | spin_unlock_irqrestore(&card->lock, flags); | |
151 | kfree(p); | |
152 | printk(KERN_DEBUG | |
153 | "Mapping for EAZ %c deleted\n", | |
154 | eazmsn[0]); | |
155 | return 0; | |
156 | } | |
157 | q = p; | |
158 | p = p->next; | |
159 | } | |
160 | return 0; | |
161 | } | |
162 | /* Add a single MSN */ | |
163 | while (p) { | |
164 | /* Found in list, replace MSN */ | |
165 | if (p->eaz == eazmsn[0]) { | |
166 | spin_lock_irqsave(&card->lock, flags); | |
167 | strcpy(p->msn, &eazmsn[1]); | |
168 | spin_unlock_irqrestore(&card->lock, flags); | |
169 | printk(KERN_DEBUG | |
170 | "Mapping for EAZ %c changed to %s\n", | |
171 | eazmsn[0], | |
172 | &eazmsn[1]); | |
173 | return 0; | |
174 | } | |
175 | p = p->next; | |
176 | } | |
177 | /* Not found in list, add new entry */ | |
178 | p = kmalloc(sizeof(msn_entry), GFP_KERNEL); | |
179 | if (!p) | |
180 | return -ENOMEM; | |
181 | p->eaz = eazmsn[0]; | |
182 | strcpy(p->msn, &eazmsn[1]); | |
183 | p->next = card->msn_list; | |
184 | spin_lock_irqsave(&card->lock, flags); | |
185 | card->msn_list = p; | |
186 | spin_unlock_irqrestore(&card->lock, flags); | |
187 | printk(KERN_DEBUG | |
188 | "Mapping %c -> %s added\n", | |
189 | eazmsn[0], | |
190 | &eazmsn[1]); | |
191 | return 0; | |
192 | } | |
193 | ||
194 | static void | |
c4028958 | 195 | act2000_transmit(struct work_struct *work) |
1da177e4 | 196 | { |
c4028958 DH |
197 | struct act2000_card *card = |
198 | container_of(work, struct act2000_card, snd_tq); | |
199 | ||
1da177e4 LT |
200 | switch (card->bus) { |
201 | case ACT2000_BUS_ISA: | |
202 | act2000_isa_send(card); | |
203 | break; | |
204 | case ACT2000_BUS_PCMCIA: | |
205 | case ACT2000_BUS_MCA: | |
206 | default: | |
207 | printk(KERN_WARNING | |
208 | "act2000_transmit: Illegal bustype %d\n", card->bus); | |
209 | } | |
210 | } | |
211 | ||
212 | static void | |
c4028958 | 213 | act2000_receive(struct work_struct *work) |
1da177e4 | 214 | { |
c4028958 DH |
215 | struct act2000_card *card = |
216 | container_of(work, struct act2000_card, poll_tq); | |
217 | ||
1da177e4 LT |
218 | switch (card->bus) { |
219 | case ACT2000_BUS_ISA: | |
220 | act2000_isa_receive(card); | |
221 | break; | |
222 | case ACT2000_BUS_PCMCIA: | |
223 | case ACT2000_BUS_MCA: | |
224 | default: | |
225 | printk(KERN_WARNING | |
226 | "act2000_receive: Illegal bustype %d\n", card->bus); | |
227 | } | |
228 | } | |
229 | ||
230 | static void | |
231 | act2000_poll(unsigned long data) | |
232 | { | |
233 | act2000_card * card = (act2000_card *)data; | |
234 | unsigned long flags; | |
235 | ||
c4028958 | 236 | act2000_receive(&card->poll_tq); |
1da177e4 LT |
237 | spin_lock_irqsave(&card->lock, flags); |
238 | mod_timer(&card->ptimer, jiffies+3); | |
239 | spin_unlock_irqrestore(&card->lock, flags); | |
240 | } | |
241 | ||
242 | static int | |
243 | act2000_command(act2000_card * card, isdn_ctrl * c) | |
244 | { | |
245 | ulong a; | |
246 | act2000_chan *chan; | |
247 | act2000_cdef cdef; | |
248 | isdn_ctrl cmd; | |
249 | char tmp[17]; | |
250 | int ret; | |
251 | unsigned long flags; | |
252 | void __user *arg; | |
253 | ||
254 | switch (c->command) { | |
255 | case ISDN_CMD_IOCTL: | |
256 | memcpy(&a, c->parm.num, sizeof(ulong)); | |
257 | arg = (void __user *)a; | |
258 | switch (c->arg) { | |
259 | case ACT2000_IOCTL_LOADBOOT: | |
260 | switch (card->bus) { | |
261 | case ACT2000_BUS_ISA: | |
262 | ret = act2000_isa_download(card, | |
263 | arg); | |
264 | if (!ret) { | |
265 | card->flags |= ACT2000_FLAGS_LOADED; | |
266 | if (!(card->flags & ACT2000_FLAGS_IVALID)) { | |
267 | card->ptimer.expires = jiffies + 3; | |
268 | card->ptimer.function = act2000_poll; | |
269 | card->ptimer.data = (unsigned long)card; | |
270 | add_timer(&card->ptimer); | |
271 | } | |
272 | actcapi_manufacturer_req_errh(card); | |
273 | } | |
274 | break; | |
275 | default: | |
276 | printk(KERN_WARNING | |
277 | "act2000: Illegal BUS type %d\n", | |
278 | card->bus); | |
279 | ret = -EIO; | |
280 | } | |
281 | return ret; | |
282 | case ACT2000_IOCTL_SETPROTO: | |
283 | card->ptype = a?ISDN_PTYPE_EURO:ISDN_PTYPE_1TR6; | |
284 | if (!(card->flags & ACT2000_FLAGS_RUNNING)) | |
285 | return 0; | |
286 | actcapi_manufacturer_req_net(card); | |
287 | return 0; | |
288 | case ACT2000_IOCTL_SETMSN: | |
289 | if (copy_from_user(tmp, arg, | |
290 | sizeof(tmp))) | |
291 | return -EFAULT; | |
292 | if ((ret = act2000_set_msn(card, tmp))) | |
293 | return ret; | |
294 | if (card->flags & ACT2000_FLAGS_RUNNING) | |
295 | return(actcapi_manufacturer_req_msn(card)); | |
296 | return 0; | |
297 | case ACT2000_IOCTL_ADDCARD: | |
298 | if (copy_from_user(&cdef, arg, | |
299 | sizeof(cdef))) | |
300 | return -EFAULT; | |
301 | if (act2000_addcard(cdef.bus, cdef.port, cdef.irq, cdef.id)) | |
302 | return -EIO; | |
303 | return 0; | |
304 | case ACT2000_IOCTL_TEST: | |
305 | if (!(card->flags & ACT2000_FLAGS_RUNNING)) | |
306 | return -ENODEV; | |
307 | return 0; | |
308 | default: | |
309 | return -EINVAL; | |
310 | } | |
311 | break; | |
312 | case ISDN_CMD_DIAL: | |
313 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
314 | return -ENODEV; | |
315 | if (!(chan = find_channel(card, c->arg & 0x0f))) | |
316 | break; | |
317 | spin_lock_irqsave(&card->lock, flags); | |
318 | if (chan->fsm_state != ACT2000_STATE_NULL) { | |
319 | spin_unlock_irqrestore(&card->lock, flags); | |
320 | printk(KERN_WARNING "Dial on channel with state %d\n", | |
321 | chan->fsm_state); | |
322 | return -EBUSY; | |
323 | } | |
324 | if (card->ptype == ISDN_PTYPE_EURO) | |
325 | tmp[0] = act2000_find_msn(card, c->parm.setup.eazmsn, 1); | |
326 | else | |
327 | tmp[0] = c->parm.setup.eazmsn[0]; | |
328 | chan->fsm_state = ACT2000_STATE_OCALL; | |
329 | chan->callref = 0xffff; | |
330 | spin_unlock_irqrestore(&card->lock, flags); | |
331 | ret = actcapi_connect_req(card, chan, c->parm.setup.phone, | |
332 | tmp[0], c->parm.setup.si1, | |
333 | c->parm.setup.si2); | |
334 | if (ret) { | |
335 | cmd.driver = card->myid; | |
336 | cmd.command = ISDN_STAT_DHUP; | |
337 | cmd.arg &= 0x0f; | |
338 | card->interface.statcallb(&cmd); | |
339 | } | |
340 | return ret; | |
341 | case ISDN_CMD_ACCEPTD: | |
342 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
343 | return -ENODEV; | |
344 | if (!(chan = find_channel(card, c->arg & 0x0f))) | |
345 | break; | |
346 | if (chan->fsm_state == ACT2000_STATE_ICALL) | |
347 | actcapi_select_b2_protocol_req(card, chan); | |
348 | return 0; | |
349 | case ISDN_CMD_ACCEPTB: | |
350 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
351 | return -ENODEV; | |
352 | return 0; | |
353 | case ISDN_CMD_HANGUP: | |
354 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
355 | return -ENODEV; | |
356 | if (!(chan = find_channel(card, c->arg & 0x0f))) | |
357 | break; | |
358 | switch (chan->fsm_state) { | |
359 | case ACT2000_STATE_ICALL: | |
360 | case ACT2000_STATE_BSETUP: | |
361 | actcapi_connect_resp(card, chan, 0x15); | |
362 | break; | |
363 | case ACT2000_STATE_ACTIVE: | |
364 | actcapi_disconnect_b3_req(card, chan); | |
365 | break; | |
366 | } | |
367 | return 0; | |
368 | case ISDN_CMD_SETEAZ: | |
369 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
370 | return -ENODEV; | |
371 | if (!(chan = find_channel(card, c->arg & 0x0f))) | |
372 | break; | |
373 | if (strlen(c->parm.num)) { | |
374 | if (card->ptype == ISDN_PTYPE_EURO) { | |
375 | chan->eazmask = act2000_find_msn(card, c->parm.num, 0); | |
376 | } | |
377 | if (card->ptype == ISDN_PTYPE_1TR6) { | |
378 | int i; | |
379 | chan->eazmask = 0; | |
380 | for (i = 0; i < strlen(c->parm.num); i++) | |
381 | if (isdigit(c->parm.num[i])) | |
382 | chan->eazmask |= (1 << (c->parm.num[i] - '0')); | |
383 | } | |
384 | } else | |
385 | chan->eazmask = 0x3ff; | |
386 | actcapi_listen_req(card); | |
387 | return 0; | |
388 | case ISDN_CMD_CLREAZ: | |
389 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
390 | return -ENODEV; | |
391 | if (!(chan = find_channel(card, c->arg & 0x0f))) | |
392 | break; | |
393 | chan->eazmask = 0; | |
394 | actcapi_listen_req(card); | |
395 | return 0; | |
396 | case ISDN_CMD_SETL2: | |
397 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
398 | return -ENODEV; | |
399 | if (!(chan = find_channel(card, c->arg & 0x0f))) | |
400 | break; | |
401 | chan->l2prot = (c->arg >> 8); | |
402 | return 0; | |
403 | case ISDN_CMD_SETL3: | |
404 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
405 | return -ENODEV; | |
406 | if ((c->arg >> 8) != ISDN_PROTO_L3_TRANS) { | |
407 | printk(KERN_WARNING "L3 protocol unknown\n"); | |
408 | return -1; | |
409 | } | |
410 | if (!(chan = find_channel(card, c->arg & 0x0f))) | |
411 | break; | |
412 | chan->l3prot = (c->arg >> 8); | |
413 | return 0; | |
414 | } | |
415 | ||
416 | return -EINVAL; | |
417 | } | |
418 | ||
419 | static int | |
420 | act2000_sendbuf(act2000_card *card, int channel, int ack, struct sk_buff *skb) | |
421 | { | |
422 | struct sk_buff *xmit_skb; | |
423 | int len; | |
424 | act2000_chan *chan; | |
425 | actcapi_msg *msg; | |
426 | ||
427 | if (!(chan = find_channel(card, channel))) | |
428 | return -1; | |
429 | if (chan->fsm_state != ACT2000_STATE_ACTIVE) | |
430 | return -1; | |
431 | len = skb->len; | |
432 | if ((chan->queued + len) >= ACT2000_MAX_QUEUED) | |
433 | return 0; | |
434 | if (!len) | |
435 | return 0; | |
436 | if (skb_headroom(skb) < 19) { | |
437 | printk(KERN_WARNING "act2000_sendbuf: Headroom only %d\n", | |
438 | skb_headroom(skb)); | |
439 | xmit_skb = alloc_skb(len + 19, GFP_ATOMIC); | |
440 | if (!xmit_skb) { | |
441 | printk(KERN_WARNING "act2000_sendbuf: Out of memory\n"); | |
442 | return 0; | |
443 | } | |
444 | skb_reserve(xmit_skb, 19); | |
445 | memcpy(skb_put(xmit_skb, len), skb->data, len); | |
446 | } else { | |
447 | xmit_skb = skb_clone(skb, GFP_ATOMIC); | |
448 | if (!xmit_skb) { | |
449 | printk(KERN_WARNING "act2000_sendbuf: Out of memory\n"); | |
450 | return 0; | |
451 | } | |
452 | } | |
453 | dev_kfree_skb(skb); | |
454 | msg = (actcapi_msg *)skb_push(xmit_skb, 19); | |
455 | msg->hdr.len = 19 + len; | |
456 | msg->hdr.applicationID = 1; | |
457 | msg->hdr.cmd.cmd = 0x86; | |
458 | msg->hdr.cmd.subcmd = 0x00; | |
459 | msg->hdr.msgnum = actcapi_nextsmsg(card); | |
460 | msg->msg.data_b3_req.datalen = len; | |
461 | msg->msg.data_b3_req.blocknr = (msg->hdr.msgnum & 0xff); | |
462 | msg->msg.data_b3_req.fakencci = MAKE_NCCI(chan->plci, 0, chan->ncci); | |
463 | msg->msg.data_b3_req.flags = ack; /* Will be set to 0 on actual sending */ | |
464 | actcapi_debug_msg(xmit_skb, 1); | |
465 | chan->queued += len; | |
466 | skb_queue_tail(&card->sndq, xmit_skb); | |
467 | act2000_schedule_tx(card); | |
468 | return len; | |
469 | } | |
470 | ||
471 | ||
472 | /* Read the Status-replies from the Interface */ | |
473 | static int | |
474 | act2000_readstatus(u_char __user * buf, int len, act2000_card * card) | |
475 | { | |
476 | int count; | |
477 | u_char __user *p; | |
478 | ||
479 | for (p = buf, count = 0; count < len; p++, count++) { | |
480 | if (card->status_buf_read == card->status_buf_write) | |
481 | return count; | |
482 | put_user(*card->status_buf_read++, p); | |
483 | if (card->status_buf_read > card->status_buf_end) | |
484 | card->status_buf_read = card->status_buf; | |
485 | } | |
486 | return count; | |
487 | } | |
488 | ||
489 | /* | |
490 | * Find card with given driverId | |
491 | */ | |
492 | static inline act2000_card * | |
493 | act2000_findcard(int driverid) | |
494 | { | |
495 | act2000_card *p = cards; | |
496 | ||
497 | while (p) { | |
498 | if (p->myid == driverid) | |
499 | return p; | |
500 | p = p->next; | |
501 | } | |
502 | return (act2000_card *) 0; | |
503 | } | |
504 | ||
505 | /* | |
506 | * Wrapper functions for interface to linklevel | |
507 | */ | |
508 | static int | |
509 | if_command(isdn_ctrl * c) | |
510 | { | |
511 | act2000_card *card = act2000_findcard(c->driver); | |
512 | ||
513 | if (card) | |
514 | return (act2000_command(card, c)); | |
515 | printk(KERN_ERR | |
516 | "act2000: if_command %d called with invalid driverId %d!\n", | |
517 | c->command, c->driver); | |
518 | return -ENODEV; | |
519 | } | |
520 | ||
521 | static int | |
522 | if_writecmd(const u_char __user *buf, int len, int id, int channel) | |
523 | { | |
524 | act2000_card *card = act2000_findcard(id); | |
525 | ||
526 | if (card) { | |
527 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
528 | return -ENODEV; | |
529 | return (len); | |
530 | } | |
531 | printk(KERN_ERR | |
532 | "act2000: if_writecmd called with invalid driverId!\n"); | |
533 | return -ENODEV; | |
534 | } | |
535 | ||
536 | static int | |
537 | if_readstatus(u_char __user * buf, int len, int id, int channel) | |
538 | { | |
539 | act2000_card *card = act2000_findcard(id); | |
540 | ||
541 | if (card) { | |
542 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
543 | return -ENODEV; | |
544 | return (act2000_readstatus(buf, len, card)); | |
545 | } | |
546 | printk(KERN_ERR | |
547 | "act2000: if_readstatus called with invalid driverId!\n"); | |
548 | return -ENODEV; | |
549 | } | |
550 | ||
551 | static int | |
552 | if_sendbuf(int id, int channel, int ack, struct sk_buff *skb) | |
553 | { | |
554 | act2000_card *card = act2000_findcard(id); | |
555 | ||
556 | if (card) { | |
557 | if (!card->flags & ACT2000_FLAGS_RUNNING) | |
558 | return -ENODEV; | |
559 | return (act2000_sendbuf(card, channel, ack, skb)); | |
560 | } | |
561 | printk(KERN_ERR | |
562 | "act2000: if_sendbuf called with invalid driverId!\n"); | |
563 | return -ENODEV; | |
564 | } | |
565 | ||
566 | ||
567 | /* | |
568 | * Allocate a new card-struct, initialize it | |
569 | * link it into cards-list. | |
570 | */ | |
571 | static void | |
572 | act2000_alloccard(int bus, int port, int irq, char *id) | |
573 | { | |
574 | int i; | |
575 | act2000_card *card; | |
576 | if (!(card = (act2000_card *) kmalloc(sizeof(act2000_card), GFP_KERNEL))) { | |
577 | printk(KERN_WARNING | |
578 | "act2000: (%s) Could not allocate card-struct.\n", id); | |
579 | return; | |
580 | } | |
581 | memset((char *) card, 0, sizeof(act2000_card)); | |
582 | spin_lock_init(&card->lock); | |
583 | spin_lock_init(&card->mnlock); | |
584 | skb_queue_head_init(&card->sndq); | |
585 | skb_queue_head_init(&card->rcvq); | |
586 | skb_queue_head_init(&card->ackq); | |
c4028958 DH |
587 | INIT_WORK(&card->snd_tq, act2000_transmit); |
588 | INIT_WORK(&card->rcv_tq, actcapi_dispatch); | |
589 | INIT_WORK(&card->poll_tq, act2000_receive); | |
1da177e4 LT |
590 | init_timer(&card->ptimer); |
591 | card->interface.owner = THIS_MODULE; | |
592 | card->interface.channels = ACT2000_BCH; | |
593 | card->interface.maxbufsize = 4000; | |
594 | card->interface.command = if_command; | |
595 | card->interface.writebuf_skb = if_sendbuf; | |
596 | card->interface.writecmd = if_writecmd; | |
597 | card->interface.readstat = if_readstatus; | |
598 | card->interface.features = | |
599 | ISDN_FEATURE_L2_X75I | | |
600 | ISDN_FEATURE_L2_HDLC | | |
601 | ISDN_FEATURE_L3_TRANS | | |
602 | ISDN_FEATURE_P_UNKNOWN; | |
603 | card->interface.hl_hdrlen = 20; | |
604 | card->ptype = ISDN_PTYPE_EURO; | |
605 | strlcpy(card->interface.id, id, sizeof(card->interface.id)); | |
606 | for (i=0; i<ACT2000_BCH; i++) { | |
607 | card->bch[i].plci = 0x8000; | |
608 | card->bch[i].ncci = 0x8000; | |
609 | card->bch[i].l2prot = ISDN_PROTO_L2_X75I; | |
610 | card->bch[i].l3prot = ISDN_PROTO_L3_TRANS; | |
611 | } | |
612 | card->myid = -1; | |
613 | card->bus = bus; | |
614 | card->port = port; | |
615 | card->irq = irq; | |
616 | card->next = cards; | |
617 | cards = card; | |
618 | } | |
619 | ||
620 | /* | |
621 | * register card at linklevel | |
622 | */ | |
623 | static int | |
624 | act2000_registercard(act2000_card * card) | |
625 | { | |
626 | switch (card->bus) { | |
627 | case ACT2000_BUS_ISA: | |
628 | break; | |
629 | case ACT2000_BUS_MCA: | |
630 | case ACT2000_BUS_PCMCIA: | |
631 | default: | |
632 | printk(KERN_WARNING | |
633 | "act2000: Illegal BUS type %d\n", | |
634 | card->bus); | |
635 | return -1; | |
636 | } | |
637 | if (!register_isdn(&card->interface)) { | |
638 | printk(KERN_WARNING | |
639 | "act2000: Unable to register %s\n", | |
640 | card->interface.id); | |
641 | return -1; | |
642 | } | |
643 | card->myid = card->interface.channels; | |
644 | sprintf(card->regname, "act2000-isdn (%s)", card->interface.id); | |
645 | return 0; | |
646 | } | |
647 | ||
648 | static void | |
649 | unregister_card(act2000_card * card) | |
650 | { | |
651 | isdn_ctrl cmd; | |
652 | ||
653 | cmd.command = ISDN_STAT_UNLOAD; | |
654 | cmd.driver = card->myid; | |
655 | card->interface.statcallb(&cmd); | |
656 | switch (card->bus) { | |
657 | case ACT2000_BUS_ISA: | |
658 | act2000_isa_release(card); | |
659 | break; | |
660 | case ACT2000_BUS_MCA: | |
661 | case ACT2000_BUS_PCMCIA: | |
662 | default: | |
663 | printk(KERN_WARNING | |
664 | "act2000: Invalid BUS type %d\n", | |
665 | card->bus); | |
666 | break; | |
667 | } | |
668 | } | |
669 | ||
670 | static int | |
671 | act2000_addcard(int bus, int port, int irq, char *id) | |
672 | { | |
673 | act2000_card *p; | |
674 | act2000_card *q = NULL; | |
675 | int initialized; | |
676 | int added = 0; | |
677 | int failed = 0; | |
678 | int i; | |
679 | ||
680 | if (!bus) | |
681 | bus = ACT2000_BUS_ISA; | |
682 | if (port != -1) { | |
683 | /* Port defined, do fixed setup */ | |
684 | act2000_alloccard(bus, port, irq, id); | |
685 | } else { | |
686 | /* No port defined, perform autoprobing. | |
687 | * This may result in more than one card detected. | |
688 | */ | |
689 | switch (bus) { | |
690 | case ACT2000_BUS_ISA: | |
691 | for (i = 0; i < ISA_NRPORTS; i++) | |
692 | if (act2000_isa_detect(act2000_isa_ports[i])) { | |
693 | printk(KERN_INFO | |
694 | "act2000: Detected ISA card at port 0x%x\n", | |
695 | act2000_isa_ports[i]); | |
696 | act2000_alloccard(bus, act2000_isa_ports[i], irq, id); | |
697 | } | |
698 | break; | |
699 | case ACT2000_BUS_MCA: | |
700 | case ACT2000_BUS_PCMCIA: | |
701 | default: | |
702 | printk(KERN_WARNING | |
703 | "act2000: addcard: Invalid BUS type %d\n", | |
704 | bus); | |
705 | } | |
706 | } | |
707 | if (!cards) | |
708 | return 1; | |
709 | p = cards; | |
710 | while (p) { | |
711 | initialized = 0; | |
712 | if (!p->interface.statcallb) { | |
713 | /* Not yet registered. | |
714 | * Try to register and activate it. | |
715 | */ | |
716 | added++; | |
717 | switch (p->bus) { | |
718 | case ACT2000_BUS_ISA: | |
719 | if (act2000_isa_detect(p->port)) { | |
720 | if (act2000_registercard(p)) | |
721 | break; | |
722 | if (act2000_isa_config_port(p, p->port)) { | |
723 | printk(KERN_WARNING | |
724 | "act2000: Could not request port 0x%04x\n", | |
725 | p->port); | |
726 | unregister_card(p); | |
727 | p->interface.statcallb = NULL; | |
728 | break; | |
729 | } | |
730 | if (act2000_isa_config_irq(p, p->irq)) { | |
731 | printk(KERN_INFO | |
732 | "act2000: No IRQ available, fallback to polling\n"); | |
733 | /* Fall back to polled operation */ | |
734 | p->irq = 0; | |
735 | } | |
736 | printk(KERN_INFO | |
737 | "act2000: ISA" | |
738 | "-type card at port " | |
739 | "0x%04x ", | |
740 | p->port); | |
741 | if (p->irq) | |
742 | printk("irq %d\n", p->irq); | |
743 | else | |
744 | printk("polled\n"); | |
745 | initialized = 1; | |
746 | } | |
747 | break; | |
748 | case ACT2000_BUS_MCA: | |
749 | case ACT2000_BUS_PCMCIA: | |
750 | default: | |
751 | printk(KERN_WARNING | |
752 | "act2000: addcard: Invalid BUS type %d\n", | |
753 | p->bus); | |
754 | } | |
755 | } else | |
756 | /* Card already initialized */ | |
757 | initialized = 1; | |
758 | if (initialized) { | |
759 | /* Init OK, next card ... */ | |
760 | q = p; | |
761 | p = p->next; | |
762 | } else { | |
763 | /* Init failed, remove card from list, free memory */ | |
764 | printk(KERN_WARNING | |
765 | "act2000: Initialization of %s failed\n", | |
766 | p->interface.id); | |
767 | if (q) { | |
768 | q->next = p->next; | |
769 | kfree(p); | |
770 | p = q->next; | |
771 | } else { | |
772 | cards = p->next; | |
773 | kfree(p); | |
774 | p = cards; | |
775 | } | |
776 | failed++; | |
777 | } | |
778 | } | |
779 | return (added - failed); | |
780 | } | |
781 | ||
782 | #define DRIVERNAME "IBM Active 2000 ISDN driver" | |
783 | ||
784 | static int __init act2000_init(void) | |
785 | { | |
786 | printk(KERN_INFO "%s\n", DRIVERNAME); | |
787 | if (!cards) | |
788 | act2000_addcard(act_bus, act_port, act_irq, act_id); | |
789 | if (!cards) | |
790 | printk(KERN_INFO "act2000: No cards defined yet\n"); | |
791 | return 0; | |
792 | } | |
793 | ||
794 | static void __exit act2000_exit(void) | |
795 | { | |
796 | act2000_card *card = cards; | |
797 | act2000_card *last; | |
798 | while (card) { | |
799 | unregister_card(card); | |
800 | del_timer(&card->ptimer); | |
801 | card = card->next; | |
802 | } | |
803 | card = cards; | |
804 | while (card) { | |
805 | last = card; | |
806 | card = card->next; | |
807 | act2000_clear_msn(last); | |
808 | kfree(last); | |
809 | } | |
810 | printk(KERN_INFO "%s unloaded\n", DRIVERNAME); | |
811 | } | |
812 | ||
813 | module_init(act2000_init); | |
814 | module_exit(act2000_exit); |