2 * Copyright (c) 1997, 2001 Hellmuth Michaelis. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 *---------------------------------------------------------------------------
27 * i4b_i4bdrv.c - i4b userland interface driver
28 * --------------------------------------------
30 * $FreeBSD: src/sys/i4b/layer4/i4b_i4bdrv.c,v 1.11.2.5 2001/12/16 15:12:59 hm Exp $
31 * $DragonFly: src/sys/net/i4b/layer4/i4b_i4bdrv.c,v 1.18 2006/09/10 01:26:39 dillon Exp $
33 * last edit-date: [Sat Aug 11 18:08:10 2001]
35 *---------------------------------------------------------------------------*/
38 #include "use_i4bipr.h"
39 #include "use_i4btel.h"
42 #error "only 1 (one) i4b device possible!"
47 #include <sys/param.h>
49 #include <sys/ioccom.h>
50 #include <sys/malloc.h>
52 #include <sys/kernel.h>
53 #include <sys/systm.h>
55 #include <sys/device.h>
57 #include <sys/socket.h>
58 #include <sys/thread2.h>
59 #include <sys/selinfo.h>
63 #include "use_i4bing.h"
64 #include "use_i4bisppp.h"
66 #include <net/i4b/include/machine/i4b_debug.h>
67 #include <net/i4b/include/machine/i4b_ioctl.h>
68 #include <net/i4b/include/machine/i4b_cause.h>
70 #include "../include/i4b_l3l4.h"
71 #include "../include/i4b_mbuf.h"
72 #include "../include/i4b_global.h"
78 struct selinfo select_rd_info;
80 static struct ifqueue i4b_rdqueue;
81 static int openflag = 0;
82 static int selflag = 0;
83 static int readflag = 0;
85 #define PDEVSTATIC static
87 PDEVSTATIC d_open_t i4bopen;
88 PDEVSTATIC d_close_t i4bclose;
89 PDEVSTATIC d_read_t i4bread;
90 PDEVSTATIC d_ioctl_t i4bioctl;
92 PDEVSTATIC d_poll_t i4bpoll;
93 #define POLLFIELD i4bpoll
97 static struct dev_ops i4b_ops = {
98 { "i4b", CDEV_MAJOR, 0 },
106 PDEVSTATIC void i4battach(void *);
107 PSEUDO_SET(i4battach, i4b_i4bdrv);
110 i4b_drvinit(void *unused)
112 dev_ops_add(&i4b_ops, 0, 0);
115 SYSINIT(i4bdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,i4b_drvinit,NULL)
117 /*---------------------------------------------------------------------------*
118 * interface attach routine
119 *---------------------------------------------------------------------------*/
121 i4battach(void *dummy)
123 printf("i4b: ISDN call control device attached\n");
125 i4b_rdqueue.ifq_maxlen = IFQ_MAXLEN;
127 make_dev(&i4b_ops, 0, UID_ROOT, GID_WHEEL, 0600, "i4b");
130 /*---------------------------------------------------------------------------*
131 * i4bopen - device driver open routine
132 *---------------------------------------------------------------------------*/
134 i4bopen(struct dev_open_args *ap)
136 cdev_t dev = ap->a_head.a_dev;
144 i4b_l4_daemon_attached();
150 /*---------------------------------------------------------------------------*
151 * i4bclose - device driver close routine
152 *---------------------------------------------------------------------------*/
154 i4bclose(struct dev_close_args *ap)
158 i4b_l4_daemon_detached();
159 i4b_Dcleanifq(&i4b_rdqueue);
164 /*---------------------------------------------------------------------------*
165 * i4bread - device driver read routine
166 *---------------------------------------------------------------------------*/
168 i4bread(struct dev_read_args *ap)
170 cdev_t dev = ap->a_head.a_dev;
178 while(IF_QEMPTY(&i4b_rdqueue))
181 error = tsleep((caddr_t) &i4b_rdqueue, PCATCH, "bird", 0);
188 IF_DEQUEUE(&i4b_rdqueue, m);
193 error = uiomove(m->m_data, m->m_len, ap->a_uio);
203 /*---------------------------------------------------------------------------*
204 * i4bioctl - device driver ioctl routine
205 *---------------------------------------------------------------------------*/
207 i4bioctl(struct dev_ioctl_args *ap)
209 cdev_t dev = ap->a_head.a_dev;
210 caddr_t data = ap->a_data;
219 /* cdid request, reserve cd and return cdid */
224 mir = (msg_cdid_req_t *)data;
226 mir->cdid = cd->cdid;
230 /* connect request, dial out to remote */
232 case I4B_CONNECT_REQ:
234 msg_connect_req_t *mcr;
235 mcr = (msg_connect_req_t *)data; /* setup ptr */
237 if((cd = cd_by_cdid(mcr->cdid)) == NULL)/* get cd */
239 NDBGL4(L4_ERR, "I4B_CONNECT_REQ ioctl, cdid not found!");
244 /* prevent dialling on leased lines */
245 if(ctrl_desc[mcr->controller].protocol == PROTOCOL_D64S)
247 SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
248 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_LLDIAL);
249 i4b_l4_disconnect_ind(cd);
254 cd->controller = mcr->controller; /* fill cd */
255 cd->bprot = mcr->bprot;
256 cd->driver = mcr->driver;
257 cd->driver_unit = mcr->driver_unit;
258 cd->cr = get_rand_cr(ctrl_desc[cd->controller].unit);
260 cd->shorthold_data.shorthold_algorithm = mcr->shorthold_data.shorthold_algorithm;
261 cd->shorthold_data.unitlen_time = mcr->shorthold_data.unitlen_time;
262 cd->shorthold_data.idle_time = mcr->shorthold_data.idle_time;
263 cd->shorthold_data.earlyhup_time = mcr->shorthold_data.earlyhup_time;
265 cd->last_aocd_time = 0;
266 if(mcr->unitlen_method == ULEN_METHOD_DYNAMIC)
273 cd->max_idle_time = 0; /* this is outgoing */
275 cd->dir = DIR_OUTGOING;
277 NDBGL4(L4_TIMO, "I4B_CONNECT_REQ times, algorithm=%ld unitlen=%ld idle=%ld earlyhup=%ld",
278 (long)cd->shorthold_data.shorthold_algorithm, (long)cd->shorthold_data.unitlen_time,
279 (long)cd->shorthold_data.idle_time, (long)cd->shorthold_data.earlyhup_time);
281 strcpy(cd->dst_telno, mcr->dst_telno);
282 strcpy(cd->src_telno, mcr->src_telno);
284 if(mcr->keypad[0] != '\0')
285 strcpy(cd->keypad, mcr->keypad);
287 cd->keypad[0] = '\0';
289 cd->display[0] = '\0';
291 SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
292 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NORMAL);
298 if(ctrl_desc[mcr->controller].bch_state[mcr->channel] != BCH_ST_FREE)
299 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
306 i < ctrl_desc[mcr->controller].nbch &&
307 ctrl_desc[mcr->controller].bch_state[i] != BCH_ST_FREE;
309 if (i == ctrl_desc[mcr->controller].nbch)
310 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
311 /* else mcr->channel = i; XXX */
316 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
320 cd->channelid = mcr->channel;
322 cd->isdntxdelay = mcr->txdelay;
324 /* check whether we have a pointer. Seems like */
325 /* this should be adequate. GJ 19.09.97 */
326 if(ctrl_desc[cd->controller].N_CONNECT_REQUEST == NULL)
327 /*XXX*/ SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
329 if((GET_CAUSE_VAL(cd->cause_in)) != CAUSE_I4B_NORMAL)
331 i4b_l4_disconnect_ind(cd);
336 (*ctrl_desc[cd->controller].N_CONNECT_REQUEST)(mcr->cdid);
341 /* connect response, accept/reject/ignore incoming call */
343 case I4B_CONNECT_RESP:
345 msg_connect_resp_t *mcrsp;
347 mcrsp = (msg_connect_resp_t *)data;
349 if((cd = cd_by_cdid(mcrsp->cdid)) == NULL)/* get cd */
351 NDBGL4(L4_ERR, "I4B_CONNECT_RESP ioctl, cdid not found!");
358 cd->driver = mcrsp->driver;
359 cd->driver_unit = mcrsp->driver_unit;
360 cd->max_idle_time = mcrsp->max_idle_time;
362 cd->shorthold_data.shorthold_algorithm = SHA_FIXU;
363 cd->shorthold_data.unitlen_time = 0; /* this is incoming */
364 cd->shorthold_data.idle_time = 0;
365 cd->shorthold_data.earlyhup_time = 0;
367 cd->isdntxdelay = mcrsp->txdelay;
369 NDBGL4(L4_TIMO, "I4B_CONNECT_RESP max_idle_time set to %ld seconds", (long)cd->max_idle_time);
371 (*ctrl_desc[cd->controller].N_CONNECT_RESPONSE)(mcrsp->cdid, mcrsp->response, mcrsp->cause);
375 /* disconnect request, actively terminate connection */
377 case I4B_DISCONNECT_REQ:
379 msg_discon_req_t *mdr;
381 mdr = (msg_discon_req_t *)data;
383 if((cd = cd_by_cdid(mdr->cdid)) == NULL)/* get cd */
385 NDBGL4(L4_ERR, "I4B_DISCONNECT_REQ ioctl, cdid not found!");
390 /* preset causes with our cause */
391 cd->cause_in = cd->cause_out = mdr->cause;
393 (*ctrl_desc[cd->controller].N_DISCONNECT_REQUEST)(mdr->cdid, mdr->cause);
397 /* controller info request */
399 case I4B_CTRL_INFO_REQ:
401 msg_ctrl_info_req_t *mcir;
403 mcir = (msg_ctrl_info_req_t *)data;
404 mcir->ncontroller = nctrl;
406 if(mcir->controller > nctrl)
408 mcir->ctrl_type = -1;
409 mcir->card_type = -1;
414 ctrl_desc[mcir->controller].ctrl_type;
416 ctrl_desc[mcir->controller].card_type;
418 ctrl_desc[mcir->controller].nbch;
420 if(ctrl_desc[mcir->controller].ctrl_type == CTRL_PASSIVE)
421 mcir->tei = ctrl_desc[mcir->controller].tei;
430 case I4B_DIALOUT_RESP:
432 drvr_link_t *dlt = NULL;
433 msg_dialout_resp_t *mdrsp;
435 mdrsp = (msg_dialout_resp_t *)data;
437 switch(mdrsp->driver)
441 dlt = ipr_ret_linktab(mdrsp->driver_unit);
447 dlt = i4bisppp_ret_linktab(mdrsp->driver_unit);
453 dlt = tel_ret_linktab(mdrsp->driver_unit);
459 dlt = ibc_ret_linktab(mdrsp->driver_unit);
465 dlt = ing_ret_linktab(mdrsp->driver_unit);
471 (*dlt->dial_response)(mdrsp->driver_unit, mdrsp->stat, mdrsp->cause);
475 /* update timeout value */
477 case I4B_TIMEOUT_UPD:
479 msg_timeout_upd_t *mtu;
481 mtu = (msg_timeout_upd_t *)data;
483 NDBGL4(L4_TIMO, "I4B_TIMEOUT_UPD ioctl, alg %d, unit %d, idle %d, early %d!",
484 mtu->shorthold_data.shorthold_algorithm, mtu->shorthold_data.unitlen_time,
485 mtu->shorthold_data.idle_time, mtu->shorthold_data.earlyhup_time);
487 if((cd = cd_by_cdid(mtu->cdid)) == NULL)/* get cd */
489 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, cdid not found!");
494 switch( mtu->shorthold_data.shorthold_algorithm )
498 * For this algorithm unitlen_time,
499 * idle_time and earlyhup_time are used.
502 if(!(mtu->shorthold_data.unitlen_time >= 0 &&
503 mtu->shorthold_data.idle_time >= 0 &&
504 mtu->shorthold_data.earlyhup_time >= 0))
506 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for fix unit algorithm!");
513 * For this algorithm unitlen_time and
514 * idle_time are used. both must be
515 * positive integers. earlyhup_time is
516 * not used and must be 0.
519 if(!(mtu->shorthold_data.unitlen_time > 0 &&
520 mtu->shorthold_data.idle_time >= 0 &&
521 mtu->shorthold_data.earlyhup_time == 0))
523 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for var unit algorithm!");
529 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid algorithm!");
535 * any error set above requires us to break
536 * out of the outer switch
542 cd->shorthold_data.shorthold_algorithm = mtu->shorthold_data.shorthold_algorithm;
543 cd->shorthold_data.unitlen_time = mtu->shorthold_data.unitlen_time;
544 cd->shorthold_data.idle_time = mtu->shorthold_data.idle_time;
545 cd->shorthold_data.earlyhup_time = mtu->shorthold_data.earlyhup_time;
550 /* soft enable/disable interface */
554 msg_updown_ind_t *mui;
556 mui = (msg_updown_ind_t *)data;
559 if(mui->driver == BDRV_IPR)
562 dlt = ipr_ret_linktab(mui->driver_unit);
563 (*dlt->updown_ind)(mui->driver_unit, mui->updown);
569 /* send ALERT request */
573 msg_alert_req_t *mar;
575 mar = (msg_alert_req_t *)data;
577 if((cd = cd_by_cdid(mar->cdid)) == NULL)
579 NDBGL4(L4_ERR, "I4B_ALERT_REQ ioctl, cdid not found!");
586 (*ctrl_desc[cd->controller].N_ALERT_REQUEST)(mar->cdid);
591 /* version/release number request */
597 mvr = (msg_vr_req_t *)data;
599 mvr->version = VERSION;
605 /* set D-channel protocol for a controller */
611 mpi = (msg_prot_ind_t *)data;
613 ctrl_desc[mpi->controller].protocol = mpi->protocol;
618 /* Download request */
620 case I4B_CTRL_DOWNLOAD:
622 struct isdn_dr_prot *prots = NULL, *prots2 = NULL;
623 struct isdn_download_request *r =
624 (struct isdn_download_request*)data;
627 if (r->controller < 0 || r->controller >= nctrl)
633 if(!ctrl_desc[r->controller].N_DOWNLOAD)
639 prots = kmalloc(r->numprotos * sizeof(struct isdn_dr_prot),
642 prots2 = kmalloc(r->numprotos * sizeof(struct isdn_dr_prot),
645 if(!prots || !prots2)
651 copyin(r->protocols, prots, r->numprotos * sizeof(struct isdn_dr_prot));
653 for(i = 0; i < r->numprotos; i++)
655 prots2[i].microcode = kmalloc(prots[i].bytecount, M_DEVBUF, M_WAITOK);
656 copyin(prots[i].microcode, prots2[i].microcode, prots[i].bytecount);
657 prots2[i].bytecount = prots[i].bytecount;
660 error = ctrl_desc[r->controller].N_DOWNLOAD(
661 ctrl_desc[r->controller].unit,
662 r->numprotos, prots2);
667 for(i = 0; i < r->numprotos; i++)
669 if(prots2[i].microcode)
671 kfree(prots2[i].microcode, M_DEVBUF);
674 kfree(prots2, M_DEVBUF);
679 kfree(prots, M_DEVBUF);
684 /* Diagnostic request */
686 case I4B_ACTIVE_DIAGNOSTIC:
688 struct isdn_diagnostic_request req, *r =
689 (struct isdn_diagnostic_request*)data;
691 req.in_param = req.out_param = NULL;
692 if (r->controller < 0 || r->controller >= nctrl)
698 if(!ctrl_desc[r->controller].N_DIAGNOSTICS)
704 memcpy(&req, r, sizeof(req));
708 /* XXX arbitrary limit */
709 if (req.in_param_len >
710 I4B_ACTIVE_DIAGNOSTIC_MAXPARAMLEN) {
715 req.in_param = kmalloc(r->in_param_len, M_DEVBUF, M_WAITOK);
722 error = copyin(r->in_param, req.in_param, req.in_param_len);
727 if(req.out_param_len)
729 req.out_param = kmalloc(r->out_param_len, M_DEVBUF, M_WAITOK);
738 error = ctrl_desc[r->controller].N_DIAGNOSTICS(r->controller, &req);
740 if(!error && req.out_param_len)
741 error = copyout(req.out_param, r->out_param, req.out_param_len);
745 kfree(req.in_param, M_DEVBUF);
748 kfree(req.out_param, M_DEVBUF);
763 /*---------------------------------------------------------------------------*
764 * i4bpoll - device driver poll routine
765 *---------------------------------------------------------------------------*/
767 i4bpoll(struct dev_poll_args *ap)
769 cdev_t dev = ap->a_head.a_dev;
777 if (ap->a_events & (POLLIN|POLLRDNORM)) {
779 if (!IF_QEMPTY(&i4b_rdqueue)) {
780 revents |= POLLIN | POLLRDNORM;
782 selrecord(curthread, &select_rd_info);
788 if (ap->a_events & (POLLOUT|POLLWRNORM)) {
789 revents |= ap->a_events & (POLLOUT | POLLWRNORM);
791 ap->a_events = revents;
795 /*---------------------------------------------------------------------------*
796 * i4bputqueue - put message into queue to userland
797 *---------------------------------------------------------------------------*/
799 i4bputqueue(struct mbuf *m)
809 if(IF_QFULL(&i4b_rdqueue))
812 IF_DEQUEUE(&i4b_rdqueue, m1);
814 NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
817 IF_ENQUEUE(&i4b_rdqueue, m);
824 wakeup((caddr_t) &i4b_rdqueue);
830 selwakeup(&select_rd_info);
834 /*---------------------------------------------------------------------------*
835 * i4bputqueue_hipri - put message into front of queue to userland
836 *---------------------------------------------------------------------------*/
838 i4bputqueue_hipri(struct mbuf *m)
848 if(IF_QFULL(&i4b_rdqueue))
851 IF_DEQUEUE(&i4b_rdqueue, m1);
853 NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
856 IF_PREPEND(&i4b_rdqueue, m);
863 wakeup((caddr_t) &i4b_rdqueue);
869 selwakeup(&select_rd_info);
873 #endif /* NI4B > 0 */