1 /* $Id: icn.c,v 1.65.6.8 2001/09/23 22:24:55 kai Exp $
3 * ISDN low-level module for the ICN active ISDN-Card.
5 * Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.de)
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
13 #include <linux/module.h>
14 #include <linux/init.h>
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";
21 MODULE_DESCRIPTION("ISDN4Linux: Driver for ICN active ISDN card");
22 MODULE_AUTHOR("Fritz Elfert");
23 MODULE_LICENSE("GPL");
24 MODULE_PARM(portbase, "i");
25 MODULE_PARM_DESC(portbase, "Port address of first card");
26 MODULE_PARM(membase, "l");
27 MODULE_PARM_DESC(membase, "Shared memory address of all cards");
28 MODULE_PARM(icn_id, "s");
29 MODULE_PARM_DESC(icn_id, "ID-String of first card");
30 MODULE_PARM(icn_id2, "s");
31 MODULE_PARM_DESC(icn_id2, "ID-String of first card, second S0 (4B only)");
34 * Verbose bootcode- and protocol-downloading.
39 * Verbose Shmem-Mapping.
44 *revision = "$Revision: 1.65.6.8 $";
46 static int icn_addcard(int, char *, char *);
49 * Free send-queue completely.
51 * card = pointer to card struct
52 * channel = channel number
55 icn_free_queue(icn_card * card, int channel)
57 struct sk_buff_head *queue = &card->spqueue[channel];
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;
69 /* Put a value into a shift-register, highest bit first.
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
77 icn_shiftout(unsigned short port,
86 for (s = firstbit, c = bitcount; c > 0; s--, c--)
87 OUTB_P((u_char) ((val >> s) & 1) ? 0xff : 0, port);
91 * disable a cards shared memory
94 icn_disable_ram(icn_card * card)
96 OUTB_P(0, ICN_MAPRAM);
100 * enable a cards shared memory
103 icn_enable_ram(icn_card * card)
105 OUTB_P(0xff, ICN_MAPRAM);
109 * Map a cards channel0 (Bank0/Bank8) or channel1 (Bank4/Bank12)
111 * must called with holding the devlock
114 icn_map_channel(icn_card * card, int channel)
117 printk(KERN_DEBUG "icn_map_channel %d %d\n", dev.channel, channel);
119 if ((channel == dev.channel) && (card == dev.mcard))
122 icn_disable_ram(dev.mcard);
123 icn_shiftout(ICN_BANK, chan2bank[channel], 3, 4); /* Select Bank */
124 icn_enable_ram(card);
126 dev.channel = channel;
128 printk(KERN_DEBUG "icn_map_channel done\n");
133 * Lock a cards channel.
134 * Return 0 if requested card/channel is unmapped (failure).
135 * Return 1 on success.
137 * must called with holding the devlock
140 icn_lock_channel(icn_card * card, int channel)
145 printk(KERN_DEBUG "icn_lock_channel %d\n", channel);
147 if ((dev.channel == channel) && (card == dev.mcard)) {
151 printk(KERN_DEBUG "icn_lock_channel %d OK\n", channel);
156 printk(KERN_DEBUG "icn_lock_channel %d FAILED, dc=%d\n", channel, dev.channel);
163 * Release current card/channel lock
165 * must called with holding the devlock
168 __icn_release_channel(void)
171 printk(KERN_DEBUG "icn_release_channel l=%d\n", dev.chanlock);
173 if (dev.chanlock > 0)
178 * Release current card/channel lock
181 icn_release_channel(void)
185 spin_lock_irqsave(&dev.devlock, flags);
186 __icn_release_channel();
187 spin_unlock_irqrestore(&dev.devlock, flags);
191 * Try to map and lock a cards channel.
192 * Return 1 on success, 0 on failure.
195 icn_trymaplock_channel(icn_card * card, int channel)
200 printk(KERN_DEBUG "trymaplock c=%d dc=%d l=%d\n", channel, dev.channel,
203 spin_lock_irqsave(&dev.devlock, flags);
204 if ((!dev.chanlock) ||
205 ((dev.channel == channel) && (dev.mcard == card))) {
207 icn_map_channel(card, channel);
208 spin_unlock_irqrestore(&dev.devlock, flags);
210 printk(KERN_DEBUG "trymaplock %d OK\n", channel);
214 spin_unlock_irqrestore(&dev.devlock, flags);
216 printk(KERN_DEBUG "trymaplock %d FAILED\n", channel);
222 * Release current card/channel lock,
223 * then map same or other channel without locking.
226 icn_maprelease_channel(icn_card * card, int channel)
231 printk(KERN_DEBUG "map_release c=%d l=%d\n", channel, dev.chanlock);
233 spin_lock_irqsave(&dev.devlock, flags);
234 if (dev.chanlock > 0)
237 icn_map_channel(card, channel);
238 spin_unlock_irqrestore(&dev.devlock, flags);
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().
247 icn_pollbchan_receive(int channel, icn_card * card)
249 int mch = channel + ((card->secondhalf) ? 2 : 0);
254 if (icn_trymaplock_channel(card, mch)) {
256 cnt = readb(&rbuf_l);
257 if ((card->rcvidx[channel] + cnt) > 4000) {
259 "icn: (%s) bogus packet on ch%d, dropping.\n",
262 card->rcvidx[channel] = 0;
265 memcpy_fromio(&card->rcvbuf[channel][card->rcvidx[channel]],
267 card->rcvidx[channel] += cnt;
268 eflag = readb(&rbuf_f);
271 icn_maprelease_channel(card, mch & 2);
273 if ((cnt = card->rcvidx[channel])) {
274 if (!(skb = dev_alloc_skb(cnt))) {
275 printk(KERN_WARNING "icn: receive out of memory\n");
278 memcpy(skb_put(skb, cnt), card->rcvbuf[channel], cnt);
279 card->rcvidx[channel] = 0;
280 card->interface.rcvcallb_skb(card->myid, channel, skb);
283 if (!icn_trymaplock_channel(card, mch))
286 icn_maprelease_channel(card, mch & 2);
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().
298 icn_pollbchan_send(int channel, icn_card * card)
300 int mch = channel + ((card->secondhalf) ? 2 : 0);
306 if (!(card->sndcount[channel] || card->xskb[channel] ||
307 skb_queue_len(&card->spqueue[channel])))
309 if (icn_trymaplock_channel(card, mch)) {
311 (card->sndcount[channel] ||
312 skb_queue_len(&card->spqueue[channel]) ||
313 card->xskb[channel])) {
314 spin_lock_irqsave(&card->lock, flags);
315 if (card->xmit_lock[channel]) {
316 spin_unlock_irqrestore(&card->lock, flags);
319 card->xmit_lock[channel]++;
320 spin_unlock_irqrestore(&card->lock, flags);
321 skb = card->xskb[channel];
323 skb = skb_dequeue(&card->spqueue[channel]);
325 /* Pop ACK-flag off skb.
326 * Store length to xlen.
328 if (*(skb_pull(skb,1)))
329 card->xlen[channel] = skb->len;
331 card->xlen[channel] = 0;
336 if (skb->len > ICN_FRAGSIZE) {
337 writeb(0xff, &sbuf_f);
340 writeb(0x0, &sbuf_f);
343 writeb(cnt, &sbuf_l);
344 memcpy_toio(&sbuf_d, skb->data, 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;
351 if (card->xskb[channel])
352 card->xskb[channel] = NULL;
353 card->xmit_lock[channel] = 0;
354 spin_unlock_irqrestore(&card->lock, flags);
356 if (card->xlen[channel]) {
357 cmd.command = ISDN_STAT_BSENT;
358 cmd.driver = card->myid;
360 cmd.parm.length = card->xlen[channel];
361 card->interface.statcallb(&cmd);
364 card->xskb[channel] = skb;
365 card->xmit_lock[channel] = 0;
366 spin_unlock_irqrestore(&card->lock, flags);
368 if (!icn_trymaplock_channel(card, mch))
371 icn_maprelease_channel(card, mch & 2);
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.
381 icn_pollbchan(unsigned long data)
383 icn_card *card = (icn_card *) data;
386 if (card->flags & ICN_FLAGS_B1ACTIVE) {
387 icn_pollbchan_receive(0, card);
388 icn_pollbchan_send(0, card);
390 if (card->flags & ICN_FLAGS_B2ACTIVE) {
391 icn_pollbchan_receive(1, card);
392 icn_pollbchan_send(1, card);
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);
401 card->flags &= ~ICN_FLAGS_RBTIMER;
404 typedef struct icn_stat {
410 static icn_stat icn_stat_table[] =
412 {"BCON_", ISDN_STAT_BCONN, 1}, /* B-Channel connected */
413 {"BDIS_", ISDN_STAT_BHUP, 2}, /* B-Channel disconnected */
415 ** add d-channel connect and disconnect support to link-level
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 */
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
442 * This routine is called periodically via timer.
446 icn_parse_status(u_char * status, int channel, icn_card * card)
448 icn_stat *s = icn_stat_table;
454 if (!strncmp(status, s->statstr, strlen(s->statstr))) {
455 cmd.command = s->command;
463 cmd.driver = card->myid;
467 spin_lock_irqsave(&card->lock, flags);
468 icn_free_queue(card,channel);
469 card->rcvidx[channel] = 0;
472 ((channel)?ICN_FLAGS_B2ACTIVE:ICN_FLAGS_B1ACTIVE)) {
476 card->flags &= ~((channel)?
477 ICN_FLAGS_B2ACTIVE:ICN_FLAGS_B1ACTIVE);
479 memset(&ncmd, 0, sizeof(ncmd));
481 ncmd.driver = card->myid;
483 ncmd.command = ISDN_STAT_BHUP;
484 spin_unlock_irqrestore(&card->lock, flags);
485 card->interface.statcallb(&cmd);
487 spin_unlock_irqrestore(&card->lock, flags);
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);
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);
506 char *t = status + 6;
507 char *s = strchr(t, ',');
510 strlcpy(cmd.parm.setup.phone, t,
511 sizeof(cmd.parm.setup.phone));
512 s = strchr(t = s, ',');
515 cmd.parm.setup.si1 = 0;
518 simple_strtoul(t, NULL, 10);
519 s = strchr(t = s, ',');
522 cmd.parm.setup.si2 = 0;
525 simple_strtoul(t, NULL, 10);
526 strlcpy(cmd.parm.setup.eazmsn, s,
527 sizeof(cmd.parm.setup.eazmsn));
529 cmd.parm.setup.plan = 0;
530 cmd.parm.setup.screen = 0;
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;
541 strlcpy(cmd.parm.num, status + 3, sizeof(cmd.parm.num));
544 snprintf(cmd.parm.num, sizeof(cmd.parm.num), "%d",
545 (int) simple_strtoul(status + 7, NULL, 16));
549 if (strlen(status) == 4)
550 snprintf(cmd.parm.num, sizeof(cmd.parm.num), "%s%c%c",
551 status + 2, *status, *(status + 1));
553 strlcpy(cmd.parm.num, status + 1, sizeof(cmd.parm.num));
556 spin_lock_irqsave(&card->lock, flags);
557 card->flags &= ~ICN_FLAGS_B1ACTIVE;
558 icn_free_queue(card, 0);
560 spin_unlock_irqrestore(&card->lock, flags);
562 cmd.driver = card->myid;
563 card->interface.statcallb(&cmd);
564 cmd.command = ISDN_STAT_DHUP;
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);
573 spin_unlock_irqrestore(&card->lock, flags);
575 cmd.driver = card->myid;
576 card->interface.statcallb(&cmd);
577 cmd.command = ISDN_STAT_DHUP;
579 cmd.driver = card->myid;
582 card->interface.statcallb(&cmd);
587 icn_putmsg(icn_card * card, unsigned char c)
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;
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);
603 icn_polldchan(unsigned long data)
605 icn_card *card = (icn_card *) data;
606 int mch = card->secondhalf ? 2 : 0;
616 if (icn_trymaplock_channel(card, mch)) {
618 for (left = avail, i = readb(&msg_o); left > 0; i++, left--) {
619 c = readb(&dev.shmem->comm_buffers.iopc_buf[i & 0xff]);
622 card->imsg[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;
628 icn_parse_status(p, ch, card);
631 if (!strncmp(p, "DRV1.", 5)) {
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;
640 "icn: (%s) 1TR6-Protocol loaded and running\n", CID);
642 if (!strncmp(p + 7, "EC", 2)) {
643 card->ptype = ISDN_PTYPE_EURO;
644 card->interface.features |= ISDN_FEATURE_P_EURO;
646 "icn: (%s) Euro-Protocol loaded and running\n", CID);
648 p = strstr(card->imsg, "BRV") + 3;
650 if (*p >= '0' && *p <= '9')
657 card->fw_rev = (int) simple_strtoul(vstr, NULL, 10);
663 card->imsg[card->iptr] = c;
668 writeb((readb(&msg_o) + avail) & 0xff, &msg_o);
669 icn_release_channel();
672 cmd.command = ISDN_STAT_STAVAIL;
673 cmd.driver = card->myid;
675 card->interface.statcallb(&cmd);
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);
689 mod_timer(&card->st_timer, jiffies+ICN_TIMER_DCREAD);
690 spin_unlock_irqrestore(&card->lock, flags);
693 /* Append a packet to the transmit buffer-queue.
695 * channel = Number of B-channel
696 * skb = pointer to sk_buff
697 * card = pointer to card-struct
699 * Number of bytes transferred, -E??? on error
703 icn_sendbuf(int channel, int ack, struct sk_buff *skb, icn_card * card)
707 struct sk_buff *nskb;
711 "icn: Send packet too large\n");
715 if (!(card->flags & (channel) ? ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE))
717 if (card->sndcount[channel] > ICN_MAX_SQUEUE)
719 #warning TODO test headroom or use skb->nb to flag ACK
720 nskb = skb_clone(skb, GFP_ATOMIC);
722 /* Push ACK flag as one
723 * byte in front of data.
725 *(skb_push(nskb, 1)) = ack?1:0;
726 skb_queue_tail(&card->spqueue[channel], nskb);
730 spin_lock_irqsave(&card->lock, flags);
731 card->sndcount[channel] += len;
732 spin_unlock_irqrestore(&card->lock, flags);
738 * Check card's status after starting the bootstrap loader.
739 * On entry, the card's shared memory has already to be mapped.
741 * 0 on success (Boot loader ready)
742 * -EIO on failure (timeout)
745 icn_check_loader(int cardnumber)
751 printk(KERN_DEBUG "Loader %d ?\n", cardnumber);
753 if (readb(&dev.shmem->data_control.scns) ||
754 readb(&dev.shmem->data_control.scnr)) {
757 "icn: Boot-Loader %d timed out.\n",
759 icn_release_channel();
763 printk(KERN_DEBUG "Loader %d TO?\n", cardnumber);
765 msleep_interruptible(ICN_BOOT_TIMEOUT1);
768 printk(KERN_DEBUG "Loader %d OK\n", cardnumber);
770 icn_release_channel();
776 /* Load the boot-code into the interface-card's memory and start it.
777 * Always called from user-process.
780 * buffer = pointer to packet
782 * 0 if successfully loaded
786 #define SLEEP(sec) { \
788 printk(KERN_DEBUG "SLEEP(%d)\n",slsec); \
790 msleep_interruptible(1000); \
799 icn_loadboot(u_char __user * buffer, icn_card * card)
806 printk(KERN_DEBUG "icn_loadboot called, buffaddr=%08lx\n", (ulong) buffer);
808 if (!(codebuf = kmalloc(ICN_CODE_STAGE1, GFP_KERNEL))) {
809 printk(KERN_WARNING "icn: Could not allocate code buffer\n");
813 if (copy_from_user(codebuf, buffer, ICN_CODE_STAGE1)) {
818 if (!request_region(card->port, ICN_PORTLEN, card->regname)) {
820 "icn: (%s) ports 0x%03x-0x%03x in use.\n",
823 card->port + ICN_PORTLEN);
829 card->other->rvalid = 1;
832 if (!request_mem_region(dev.memaddr, 0x4000, "icn-isdn (all cards)")) {
834 "icn: memory at 0x%08lx in use.\n", dev.memaddr);
838 dev.shmem = ioremap(dev.memaddr, 0x4000);
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. */
846 printk(KERN_DEBUG "shmem=%08lx\n", dev.memaddr);
850 printk(KERN_DEBUG "Map Bank 0\n");
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);
857 memcpy_toio(dev.shmem, codebuf, ICN_CODE_STAGE1); /* Copy code */
859 printk(KERN_DEBUG "Bootloader transferred\n");
861 if (card->doubleS0) {
864 printk(KERN_DEBUG "Map Bank 8\n");
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);
872 memcpy_toio(dev.shmem, codebuf, ICN_CODE_STAGE1); /* Copy code */
874 printk(KERN_DEBUG "Bootloader transferred\n");
878 OUTB_P(0xff, ICN_RUN); /* Start Boot-Code */
879 if ((ret = icn_check_loader(card->doubleS0 ? 2 : 1))) {
882 if (!card->doubleS0) {
886 /* reached only, if we have a Double-S0-Card */
888 printk(KERN_DEBUG "Map Bank 0\n");
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);
895 ret = (icn_check_loader(1));
904 icn_loadproto(u_char __user * buffer, icn_card * card)
906 register u_char __user *p = buffer;
908 uint left = ICN_CODE_STAGE2;
915 printk(KERN_DEBUG "icn_loadproto called\n");
917 if ((ret = verify_area(VERIFY_READ, buffer, ICN_CODE_STAGE2)))
920 spin_lock_irqsave(&dev.devlock, flags);
921 if (card->secondhalf) {
922 icn_map_channel(card, 2);
923 icn_lock_channel(card, 2);
925 icn_map_channel(card, 0);
926 icn_lock_channel(card, 0);
928 spin_unlock_irqrestore(&dev.devlock, flags);
930 if (sbfree) { /* If there is a free buffer... */
934 if (copy_from_user(codebuf, p, cnt)) {
935 icn_maprelease_channel(card, 0);
938 memcpy_toio(&sbuf_l, codebuf, cnt); /* copy data */
939 sbnext; /* switch to next buffer */
945 printk(KERN_DEBUG "boot 2 !sbfree\n");
948 icn_maprelease_channel(card, 0);
951 set_current_state(TASK_INTERRUPTIBLE);
952 schedule_timeout(10);
955 writeb(0x20, &sbuf_n);
958 if (readb(&cmd_o) || readb(&cmd_i)) {
960 printk(KERN_DEBUG "Proto?\n");
964 "icn: (%s) Protocol timed out.\n",
967 printk(KERN_DEBUG "Proto TO!\n");
969 icn_maprelease_channel(card, 0);
973 printk(KERN_DEBUG "Proto TO?\n");
975 msleep_interruptible(ICN_BOOT_TIMEOUT1);
977 if ((card->secondhalf) || (!card->doubleS0)) {
979 printk(KERN_DEBUG "Proto loaded, install poll-timer %d\n",
982 spin_lock_irqsave(&card->lock, flags);
983 init_timer(&card->st_timer);
984 card->st_timer.expires = jiffies + ICN_TIMER_DCREAD;
985 card->st_timer.function = icn_polldchan;
986 card->st_timer.data = (unsigned long) card;
987 add_timer(&card->st_timer);
988 card->flags |= ICN_FLAGS_RUNNING;
989 if (card->doubleS0) {
990 init_timer(&card->other->st_timer);
991 card->other->st_timer.expires = jiffies + ICN_TIMER_DCREAD;
992 card->other->st_timer.function = icn_polldchan;
993 card->other->st_timer.data = (unsigned long) card->other;
994 add_timer(&card->other->st_timer);
995 card->other->flags |= ICN_FLAGS_RUNNING;
997 spin_unlock_irqrestore(&card->lock, flags);
999 icn_maprelease_channel(card, 0);
1005 /* Read the Status-replies from the Interface */
1007 icn_readstatus(u_char __user *buf, int len, icn_card * card)
1012 for (p = buf, count = 0; count < len; p++, count++) {
1013 if (card->msg_buf_read == card->msg_buf_write)
1015 put_user(*card->msg_buf_read++, p);
1016 if (card->msg_buf_read > card->msg_buf_end)
1017 card->msg_buf_read = card->msg_buf;
1022 /* Put command-strings into the command-queue of the Interface */
1024 icn_writecmd(const u_char * buf, int len, int user, icn_card * card)
1026 int mch = card->secondhalf ? 2 : 0;
1033 unsigned long flags;
1034 int lastmap_channel;
1035 struct icn_card *lastmap_card;
1047 if (copy_from_user(msg, buf, count))
1050 memcpy(msg, buf, count);
1052 spin_lock_irqsave(&dev.devlock, flags);
1053 lastmap_card = dev.mcard;
1054 lastmap_channel = dev.channel;
1055 icn_map_channel(card, mch);
1057 icn_putmsg(card, '>');
1058 for (p = msg, pp = readb(&cmd_i), i = count; i > 0; i--, p++, pp
1060 writeb((*p == '\n') ? 0xff : *p,
1061 &dev.shmem->comm_buffers.pcio_buf[pp & 0xff]);
1064 icn_putmsg(card, *p);
1065 if ((*p == '\n') && (i > 1)) {
1066 icn_putmsg(card, '>');
1071 writeb((readb(&cmd_i) + count) & 0xff, &cmd_i);
1073 icn_map_channel(lastmap_card, lastmap_channel);
1074 spin_unlock_irqrestore(&dev.devlock, flags);
1083 printk(KERN_WARNING "icn: writemsg incomplete!\n");
1084 cmd.command = ISDN_STAT_STAVAIL;
1085 cmd.driver = card->myid;
1087 card->interface.statcallb(&cmd);
1092 * Delete card's pending timers, send STOP to linklevel
1095 icn_stopcard(icn_card * card)
1097 unsigned long flags;
1100 spin_lock_irqsave(&card->lock, flags);
1101 if (card->flags & ICN_FLAGS_RUNNING) {
1102 card->flags &= ~ICN_FLAGS_RUNNING;
1103 del_timer(&card->st_timer);
1104 del_timer(&card->rb_timer);
1105 spin_unlock_irqrestore(&card->lock, flags);
1106 cmd.command = ISDN_STAT_STOP;
1107 cmd.driver = card->myid;
1108 card->interface.statcallb(&cmd);
1110 icn_stopcard(card->other);
1112 spin_unlock_irqrestore(&card->lock, flags);
1116 icn_stopallcards(void)
1118 icn_card *p = cards;
1127 * Unmap all cards, because some of them may be mapped accidetly during
1128 * autoprobing of some network drivers (SMC-driver?)
1131 icn_disable_cards(void)
1133 icn_card *card = cards;
1136 if (!request_region(card->port, ICN_PORTLEN, "icn-isdn")) {
1138 "icn: (%s) ports 0x%03x-0x%03x in use.\n",
1141 card->port + ICN_PORTLEN);
1143 OUTB_P(0, ICN_RUN); /* Reset Controller */
1144 OUTB_P(0, ICN_MAPRAM); /* Disable RAM */
1145 release_region(card->port, ICN_PORTLEN);
1152 icn_command(isdn_ctrl * c, icn_card * card)
1162 switch (c->command) {
1163 case ISDN_CMD_IOCTL:
1164 memcpy(&a, c->parm.num, sizeof(ulong));
1165 arg = (char __user *)a;
1167 case ICN_IOCTL_SETMMIO:
1168 if (dev.memaddr != (a & 0x0ffc000)) {
1169 if (!request_mem_region(a & 0x0ffc000, 0x4000, "icn-isdn (all cards)")) {
1171 "icn: memory at 0x%08lx in use.\n",
1175 release_mem_region(a & 0x0ffc000, 0x4000);
1177 spin_lock_irqsave(&card->lock, flags);
1180 release_mem_region(dev.memaddr, 0x4000);
1183 dev.memaddr = a & 0x0ffc000;
1184 spin_unlock_irqrestore(&card->lock, flags);
1186 "icn: (%s) mmio set to 0x%08lx\n",
1191 case ICN_IOCTL_GETMMIO:
1192 return (long) dev.memaddr;
1193 case ICN_IOCTL_SETPORT:
1194 if (a == 0x300 || a == 0x310 || a == 0x320 || a == 0x330
1195 || a == 0x340 || a == 0x350 || a == 0x360 ||
1196 a == 0x308 || a == 0x318 || a == 0x328 || a == 0x338
1197 || a == 0x348 || a == 0x358 || a == 0x368) {
1198 if (card->port != (unsigned short) a) {
1199 if (!request_region((unsigned short) a, ICN_PORTLEN, "icn-isdn")) {
1201 "icn: (%s) ports 0x%03x-0x%03x in use.\n",
1202 CID, (int) a, (int) a + ICN_PORTLEN);
1205 release_region((unsigned short) a, ICN_PORTLEN);
1207 spin_lock_irqsave(&card->lock, flags);
1209 release_region(card->port, ICN_PORTLEN);
1210 card->port = (unsigned short) a;
1212 if (card->doubleS0) {
1213 card->other->port = (unsigned short) a;
1214 card->other->rvalid = 0;
1216 spin_unlock_irqrestore(&card->lock, flags);
1218 "icn: (%s) port set to 0x%03x\n",
1224 case ICN_IOCTL_GETPORT:
1225 return (int) card->port;
1226 case ICN_IOCTL_GETDOUBLE:
1227 return (int) card->doubleS0;
1228 case ICN_IOCTL_DEBUGVAR:
1229 if (copy_to_user(arg,
1235 ulong l = (ulong) & dev;
1236 if (copy_to_user(arg,
1242 case ICN_IOCTL_LOADBOOT:
1243 if (dev.firstload) {
1244 icn_disable_cards();
1248 return (icn_loadboot(arg, card));
1249 case ICN_IOCTL_LOADPROTO:
1251 if ((i = (icn_loadproto(arg, card))))
1254 i = icn_loadproto(arg + ICN_CODE_STAGE2, card->other);
1257 case ICN_IOCTL_ADDCARD:
1260 if (copy_from_user(&cdef,
1264 return (icn_addcard(cdef.port, cdef.id1, cdef.id2));
1266 case ICN_IOCTL_LEASEDCFG:
1268 if (!card->leased) {
1270 while (card->ptype == ISDN_PTYPE_UNKNOWN) {
1271 msleep_interruptible(ICN_BOOT_TIMEOUT1);
1273 msleep_interruptible(ICN_BOOT_TIMEOUT1);
1274 sprintf(cbuf, "00;FV2ON\n01;EAZ%c\n02;EAZ%c\n",
1275 (a & 1)?'1':'C', (a & 2)?'2':'C');
1276 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1278 "icn: (%s) Leased-line mode enabled\n",
1280 cmd.command = ISDN_STAT_RUN;
1281 cmd.driver = card->myid;
1283 card->interface.statcallb(&cmd);
1288 sprintf(cbuf, "00;FV2OFF\n");
1289 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1291 "icn: (%s) Leased-line mode disabled\n",
1293 cmd.command = ISDN_STAT_RUN;
1294 cmd.driver = card->myid;
1296 card->interface.statcallb(&cmd);
1305 if (!card->flags & ICN_FLAGS_RUNNING)
1309 if ((c->arg & 255) < ICN_BCH) {
1315 p = c->parm.setup.phone;
1316 if (*p == 's' || *p == 'S') {
1319 strcpy(dcode, "SCA");
1322 strcpy(dcode, "CAL");
1324 sprintf(cbuf, "%02d;D%s_R%s,%02d,%02d,%s\n", (int) (a + 1),
1325 dcode, dial, c->parm.setup.si1,
1326 c->parm.setup.si2, c->parm.setup.eazmsn);
1327 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1330 case ISDN_CMD_ACCEPTD:
1331 if (!card->flags & ICN_FLAGS_RUNNING)
1333 if (c->arg < ICN_BCH) {
1335 if (card->fw_rev >= 300) {
1336 switch (card->l2_proto[a - 1]) {
1337 case ISDN_PROTO_L2_X75I:
1338 sprintf(cbuf, "%02d;BX75\n", (int) a);
1340 case ISDN_PROTO_L2_HDLC:
1341 sprintf(cbuf, "%02d;BTRA\n", (int) a);
1344 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1346 sprintf(cbuf, "%02d;DCON_R\n", (int) a);
1347 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1350 case ISDN_CMD_ACCEPTB:
1351 if (!card->flags & ICN_FLAGS_RUNNING)
1353 if (c->arg < ICN_BCH) {
1355 if (card->fw_rev >= 300)
1356 switch (card->l2_proto[a - 1]) {
1357 case ISDN_PROTO_L2_X75I:
1358 sprintf(cbuf, "%02d;BCON_R,BX75\n", (int) a);
1360 case ISDN_PROTO_L2_HDLC:
1361 sprintf(cbuf, "%02d;BCON_R,BTRA\n", (int) a);
1364 sprintf(cbuf, "%02d;BCON_R\n", (int) a);
1365 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1368 case ISDN_CMD_HANGUP:
1369 if (!card->flags & ICN_FLAGS_RUNNING)
1371 if (c->arg < ICN_BCH) {
1373 sprintf(cbuf, "%02d;BDIS_R\n%02d;DDIS_R\n", (int) a, (int) a);
1374 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1377 case ISDN_CMD_SETEAZ:
1378 if (!card->flags & ICN_FLAGS_RUNNING)
1382 if (c->arg < ICN_BCH) {
1384 if (card->ptype == ISDN_PTYPE_EURO) {
1385 sprintf(cbuf, "%02d;MS%s%s\n", (int) a,
1386 c->parm.num[0] ? "N" : "ALL", c->parm.num);
1388 sprintf(cbuf, "%02d;EAZ%s\n", (int) a,
1389 c->parm.num[0] ? (char *)(c->parm.num) : "0123456789");
1390 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1393 case ISDN_CMD_CLREAZ:
1394 if (!card->flags & ICN_FLAGS_RUNNING)
1398 if (c->arg < ICN_BCH) {
1400 if (card->ptype == ISDN_PTYPE_EURO)
1401 sprintf(cbuf, "%02d;MSNC\n", (int) a);
1403 sprintf(cbuf, "%02d;EAZC\n", (int) a);
1404 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1407 case ISDN_CMD_SETL2:
1408 if (!card->flags & ICN_FLAGS_RUNNING)
1410 if ((c->arg & 255) < ICN_BCH) {
1413 case ISDN_PROTO_L2_X75I:
1414 sprintf(cbuf, "%02d;BX75\n", (int) (a & 255) + 1);
1416 case ISDN_PROTO_L2_HDLC:
1417 sprintf(cbuf, "%02d;BTRA\n", (int) (a & 255) + 1);
1422 i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
1423 card->l2_proto[a & 255] = (a >> 8);
1426 case ISDN_CMD_SETL3:
1427 if (!card->flags & ICN_FLAGS_RUNNING)
1437 * Find card with given driverId
1439 static inline icn_card *
1440 icn_findcard(int driverid)
1442 icn_card *p = cards;
1445 if (p->myid == driverid)
1449 return (icn_card *) 0;
1453 * Wrapper functions for interface to linklevel
1456 if_command(isdn_ctrl * c)
1458 icn_card *card = icn_findcard(c->driver);
1461 return (icn_command(c, card));
1463 "icn: if_command %d called with invalid driverId %d!\n",
1464 c->command, c->driver);
1469 if_writecmd(const u_char __user *buf, int len, int id, int channel)
1471 icn_card *card = icn_findcard(id);
1474 if (!card->flags & ICN_FLAGS_RUNNING)
1476 return (icn_writecmd(buf, len, 1, card));
1479 "icn: if_writecmd called with invalid driverId!\n");
1484 if_readstatus(u_char __user *buf, int len, int id, int channel)
1486 icn_card *card = icn_findcard(id);
1489 if (!card->flags & ICN_FLAGS_RUNNING)
1491 return (icn_readstatus(buf, len, card));
1494 "icn: if_readstatus called with invalid driverId!\n");
1499 if_sendbuf(int id, int channel, int ack, struct sk_buff *skb)
1501 icn_card *card = icn_findcard(id);
1504 if (!card->flags & ICN_FLAGS_RUNNING)
1506 return (icn_sendbuf(channel, ack, skb, card));
1509 "icn: if_sendbuf called with invalid driverId!\n");
1514 * Allocate a new card-struct, initialize it
1515 * link it into cards-list and register it at linklevel.
1518 icn_initcard(int port, char *id)
1523 if (!(card = (icn_card *) kmalloc(sizeof(icn_card), GFP_KERNEL))) {
1525 "icn: (%s) Could not allocate card-struct.\n", id);
1526 return (icn_card *) 0;
1528 memset((char *) card, 0, sizeof(icn_card));
1529 spin_lock_init(&card->lock);
1531 card->interface.owner = THIS_MODULE;
1532 card->interface.hl_hdrlen = 1;
1533 card->interface.channels = ICN_BCH;
1534 card->interface.maxbufsize = 4000;
1535 card->interface.command = if_command;
1536 card->interface.writebuf_skb = if_sendbuf;
1537 card->interface.writecmd = if_writecmd;
1538 card->interface.readstat = if_readstatus;
1539 card->interface.features = ISDN_FEATURE_L2_X75I |
1540 ISDN_FEATURE_L2_HDLC |
1541 ISDN_FEATURE_L3_TRANS |
1542 ISDN_FEATURE_P_UNKNOWN;
1543 card->ptype = ISDN_PTYPE_UNKNOWN;
1544 strlcpy(card->interface.id, id, sizeof(card->interface.id));
1545 card->msg_buf_write = card->msg_buf;
1546 card->msg_buf_read = card->msg_buf;
1547 card->msg_buf_end = &card->msg_buf[sizeof(card->msg_buf) - 1];
1548 for (i = 0; i < ICN_BCH; i++) {
1549 card->l2_proto[i] = ISDN_PROTO_L2_X75I;
1550 skb_queue_head_init(&card->spqueue[i]);
1554 if (!register_isdn(&card->interface)) {
1555 cards = cards->next;
1557 "icn: Unable to register %s\n", id);
1559 return (icn_card *) 0;
1561 card->myid = card->interface.channels;
1562 sprintf(card->regname, "icn-isdn (%s)", card->interface.id);
1567 icn_addcard(int port, char *id1, char *id2)
1572 if (!(card = icn_initcard(port, id1))) {
1577 "icn: (%s) ICN-2B, port 0x%x added\n",
1578 card->interface.id, port);
1581 if (!(card2 = icn_initcard(port, id2))) {
1583 "icn: (%s) half ICN-4B, port 0x%x added\n",
1584 card2->interface.id, port);
1588 card->secondhalf = 0;
1589 card->other = card2;
1590 card2->doubleS0 = 1;
1591 card2->secondhalf = 1;
1592 card2->other = card;
1594 "icn: (%s and %s) ICN-4B, port 0x%x added\n",
1595 card->interface.id, card2->interface.id, port);
1601 icn_setup(char *line)
1605 static char sid[20];
1606 static char sid2[20];
1608 str = get_options(line, 2, ints);
1612 membase = (unsigned long)ints[2];
1616 if ((p = strchr(sid, ','))) {
1624 __setup("icn=", icn_setup);
1627 static int __init icn_init(void)
1632 memset(&dev, 0, sizeof(icn_dev));
1633 dev.memaddr = (membase & 0x0ffc000);
1637 spin_lock_init(&dev.devlock);
1639 if ((p = strchr(revision, ':'))) {
1641 p = strchr(rev, '$');
1644 strcpy(rev, " ??? ");
1645 printk(KERN_NOTICE "ICN-ISDN-driver Rev%smem=0x%08lx\n", rev,
1647 return (icn_addcard(portbase, icn_id, icn_id2));
1650 static void __exit icn_exit(void)
1653 icn_card *card = cards;
1656 unsigned long flags;
1660 cmd.command = ISDN_STAT_UNLOAD;
1661 cmd.driver = card->myid;
1662 card->interface.statcallb(&cmd);
1663 spin_lock_irqsave(&card->lock, flags);
1665 OUTB_P(0, ICN_RUN); /* Reset Controller */
1666 OUTB_P(0, ICN_MAPRAM); /* Disable RAM */
1667 if (card->secondhalf || (!card->doubleS0)) {
1668 release_region(card->port, ICN_PORTLEN);
1671 for (i = 0; i < ICN_BCH; i++)
1672 icn_free_queue(card, i);
1675 spin_unlock_irqrestore(&card->lock, flags);
1686 release_mem_region(dev.memaddr, 0x4000);
1688 printk(KERN_NOTICE "ICN-ISDN-driver unloaded\n");
1691 module_init(icn_init);
1692 module_exit(icn_exit);