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 1.20 2008/01/06 16:55:52 swildner 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/malloc.h>
51 #include <sys/kernel.h>
52 #include <sys/systm.h>
54 #include <sys/device.h>
56 #include <sys/socket.h>
57 #include <sys/thread2.h>
58 #include <sys/selinfo.h>
62 #include "use_i4bing.h"
63 #include "use_i4bisppp.h"
65 #include <net/i4b/include/machine/i4b_debug.h>
66 #include <net/i4b/include/machine/i4b_ioctl.h>
67 #include <net/i4b/include/machine/i4b_cause.h>
69 #include "../include/i4b_l3l4.h"
70 #include "../include/i4b_mbuf.h"
71 #include "../include/i4b_global.h"
77 struct selinfo select_rd_info;
79 static struct ifqueue i4b_rdqueue;
80 static int openflag = 0;
81 static int selflag = 0;
82 static int readflag = 0;
84 #define PDEVSTATIC static
86 PDEVSTATIC d_open_t i4bopen;
87 PDEVSTATIC d_close_t i4bclose;
88 PDEVSTATIC d_read_t i4bread;
89 PDEVSTATIC d_ioctl_t i4bioctl;
91 PDEVSTATIC d_poll_t i4bpoll;
92 #define POLLFIELD i4bpoll
96 static struct dev_ops i4b_ops = {
97 { "i4b", CDEV_MAJOR, 0 },
105 PDEVSTATIC void i4battach(void *);
106 PSEUDO_SET(i4battach, i4b_i4bdrv);
109 i4b_drvinit(void *unused)
111 dev_ops_add(&i4b_ops, 0, 0);
114 SYSINIT(i4bdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,i4b_drvinit,NULL)
116 /*---------------------------------------------------------------------------*
117 * interface attach routine
118 *---------------------------------------------------------------------------*/
120 i4battach(void *dummy)
122 kprintf("i4b: ISDN call control device attached\n");
124 i4b_rdqueue.ifq_maxlen = IFQ_MAXLEN;
126 make_dev(&i4b_ops, 0, UID_ROOT, GID_WHEEL, 0600, "i4b");
129 /*---------------------------------------------------------------------------*
130 * i4bopen - device driver open routine
131 *---------------------------------------------------------------------------*/
133 i4bopen(struct dev_open_args *ap)
135 cdev_t dev = ap->a_head.a_dev;
143 i4b_l4_daemon_attached();
149 /*---------------------------------------------------------------------------*
150 * i4bclose - device driver close routine
151 *---------------------------------------------------------------------------*/
153 i4bclose(struct dev_close_args *ap)
157 i4b_l4_daemon_detached();
158 i4b_Dcleanifq(&i4b_rdqueue);
163 /*---------------------------------------------------------------------------*
164 * i4bread - device driver read routine
165 *---------------------------------------------------------------------------*/
167 i4bread(struct dev_read_args *ap)
169 cdev_t dev = ap->a_head.a_dev;
177 while(IF_QEMPTY(&i4b_rdqueue))
180 error = tsleep((caddr_t) &i4b_rdqueue, PCATCH, "bird", 0);
187 IF_DEQUEUE(&i4b_rdqueue, m);
192 error = uiomove(m->m_data, m->m_len, ap->a_uio);
202 /*---------------------------------------------------------------------------*
203 * i4bioctl - device driver ioctl routine
204 *---------------------------------------------------------------------------*/
206 i4bioctl(struct dev_ioctl_args *ap)
208 cdev_t dev = ap->a_head.a_dev;
209 caddr_t data = ap->a_data;
218 /* cdid request, reserve cd and return cdid */
223 mir = (msg_cdid_req_t *)data;
225 mir->cdid = cd->cdid;
229 /* connect request, dial out to remote */
231 case I4B_CONNECT_REQ:
233 msg_connect_req_t *mcr;
234 mcr = (msg_connect_req_t *)data; /* setup ptr */
236 if((cd = cd_by_cdid(mcr->cdid)) == NULL)/* get cd */
238 NDBGL4(L4_ERR, "I4B_CONNECT_REQ ioctl, cdid not found!");
243 /* prevent dialling on leased lines */
244 if(ctrl_desc[mcr->controller].protocol == PROTOCOL_D64S)
246 SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
247 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_LLDIAL);
248 i4b_l4_disconnect_ind(cd);
253 cd->controller = mcr->controller; /* fill cd */
254 cd->bprot = mcr->bprot;
255 cd->driver = mcr->driver;
256 cd->driver_unit = mcr->driver_unit;
257 cd->cr = get_rand_cr(ctrl_desc[cd->controller].unit);
259 cd->shorthold_data.shorthold_algorithm = mcr->shorthold_data.shorthold_algorithm;
260 cd->shorthold_data.unitlen_time = mcr->shorthold_data.unitlen_time;
261 cd->shorthold_data.idle_time = mcr->shorthold_data.idle_time;
262 cd->shorthold_data.earlyhup_time = mcr->shorthold_data.earlyhup_time;
264 cd->last_aocd_time = 0;
265 if(mcr->unitlen_method == ULEN_METHOD_DYNAMIC)
272 cd->max_idle_time = 0; /* this is outgoing */
274 cd->dir = DIR_OUTGOING;
276 NDBGL4(L4_TIMO, "I4B_CONNECT_REQ times, algorithm=%ld unitlen=%ld idle=%ld earlyhup=%ld",
277 (long)cd->shorthold_data.shorthold_algorithm, (long)cd->shorthold_data.unitlen_time,
278 (long)cd->shorthold_data.idle_time, (long)cd->shorthold_data.earlyhup_time);
280 strcpy(cd->dst_telno, mcr->dst_telno);
281 strcpy(cd->src_telno, mcr->src_telno);
283 if(mcr->keypad[0] != '\0')
284 strcpy(cd->keypad, mcr->keypad);
286 cd->keypad[0] = '\0';
288 cd->display[0] = '\0';
290 SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
291 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NORMAL);
297 if(ctrl_desc[mcr->controller].bch_state[mcr->channel] != BCH_ST_FREE)
298 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
305 i < ctrl_desc[mcr->controller].nbch &&
306 ctrl_desc[mcr->controller].bch_state[i] != BCH_ST_FREE;
308 if (i == ctrl_desc[mcr->controller].nbch)
309 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
310 /* else mcr->channel = i; XXX */
315 SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
319 cd->channelid = mcr->channel;
321 cd->isdntxdelay = mcr->txdelay;
323 /* check whether we have a pointer. Seems like */
324 /* this should be adequate. GJ 19.09.97 */
325 if(ctrl_desc[cd->controller].N_CONNECT_REQUEST == NULL)
326 /*XXX*/ SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
328 if((GET_CAUSE_VAL(cd->cause_in)) != CAUSE_I4B_NORMAL)
330 i4b_l4_disconnect_ind(cd);
335 (*ctrl_desc[cd->controller].N_CONNECT_REQUEST)(mcr->cdid);
340 /* connect response, accept/reject/ignore incoming call */
342 case I4B_CONNECT_RESP:
344 msg_connect_resp_t *mcrsp;
346 mcrsp = (msg_connect_resp_t *)data;
348 if((cd = cd_by_cdid(mcrsp->cdid)) == NULL)/* get cd */
350 NDBGL4(L4_ERR, "I4B_CONNECT_RESP ioctl, cdid not found!");
357 cd->driver = mcrsp->driver;
358 cd->driver_unit = mcrsp->driver_unit;
359 cd->max_idle_time = mcrsp->max_idle_time;
361 cd->shorthold_data.shorthold_algorithm = SHA_FIXU;
362 cd->shorthold_data.unitlen_time = 0; /* this is incoming */
363 cd->shorthold_data.idle_time = 0;
364 cd->shorthold_data.earlyhup_time = 0;
366 cd->isdntxdelay = mcrsp->txdelay;
368 NDBGL4(L4_TIMO, "I4B_CONNECT_RESP max_idle_time set to %ld seconds", (long)cd->max_idle_time);
370 (*ctrl_desc[cd->controller].N_CONNECT_RESPONSE)(mcrsp->cdid, mcrsp->response, mcrsp->cause);
374 /* disconnect request, actively terminate connection */
376 case I4B_DISCONNECT_REQ:
378 msg_discon_req_t *mdr;
380 mdr = (msg_discon_req_t *)data;
382 if((cd = cd_by_cdid(mdr->cdid)) == NULL)/* get cd */
384 NDBGL4(L4_ERR, "I4B_DISCONNECT_REQ ioctl, cdid not found!");
389 /* preset causes with our cause */
390 cd->cause_in = cd->cause_out = mdr->cause;
392 (*ctrl_desc[cd->controller].N_DISCONNECT_REQUEST)(mdr->cdid, mdr->cause);
396 /* controller info request */
398 case I4B_CTRL_INFO_REQ:
400 msg_ctrl_info_req_t *mcir;
402 mcir = (msg_ctrl_info_req_t *)data;
403 mcir->ncontroller = nctrl;
405 if(mcir->controller > nctrl)
407 mcir->ctrl_type = -1;
408 mcir->card_type = -1;
413 ctrl_desc[mcir->controller].ctrl_type;
415 ctrl_desc[mcir->controller].card_type;
417 ctrl_desc[mcir->controller].nbch;
419 if(ctrl_desc[mcir->controller].ctrl_type == CTRL_PASSIVE)
420 mcir->tei = ctrl_desc[mcir->controller].tei;
429 case I4B_DIALOUT_RESP:
431 drvr_link_t *dlt = NULL;
432 msg_dialout_resp_t *mdrsp;
434 mdrsp = (msg_dialout_resp_t *)data;
436 switch(mdrsp->driver)
440 dlt = ipr_ret_linktab(mdrsp->driver_unit);
446 dlt = i4bisppp_ret_linktab(mdrsp->driver_unit);
452 dlt = tel_ret_linktab(mdrsp->driver_unit);
458 dlt = ibc_ret_linktab(mdrsp->driver_unit);
464 dlt = ing_ret_linktab(mdrsp->driver_unit);
470 (*dlt->dial_response)(mdrsp->driver_unit, mdrsp->stat, mdrsp->cause);
474 /* update timeout value */
476 case I4B_TIMEOUT_UPD:
478 msg_timeout_upd_t *mtu;
480 mtu = (msg_timeout_upd_t *)data;
482 NDBGL4(L4_TIMO, "I4B_TIMEOUT_UPD ioctl, alg %d, unit %d, idle %d, early %d!",
483 mtu->shorthold_data.shorthold_algorithm, mtu->shorthold_data.unitlen_time,
484 mtu->shorthold_data.idle_time, mtu->shorthold_data.earlyhup_time);
486 if((cd = cd_by_cdid(mtu->cdid)) == NULL)/* get cd */
488 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, cdid not found!");
493 switch( mtu->shorthold_data.shorthold_algorithm )
497 * For this algorithm unitlen_time,
498 * idle_time and earlyhup_time are used.
501 if(!(mtu->shorthold_data.unitlen_time >= 0 &&
502 mtu->shorthold_data.idle_time >= 0 &&
503 mtu->shorthold_data.earlyhup_time >= 0))
505 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for fix unit algorithm!");
512 * For this algorithm unitlen_time and
513 * idle_time are used. both must be
514 * positive integers. earlyhup_time is
515 * not used and must be 0.
518 if(!(mtu->shorthold_data.unitlen_time > 0 &&
519 mtu->shorthold_data.idle_time >= 0 &&
520 mtu->shorthold_data.earlyhup_time == 0))
522 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for var unit algorithm!");
528 NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid algorithm!");
534 * any error set above requires us to break
535 * out of the outer switch
541 cd->shorthold_data.shorthold_algorithm = mtu->shorthold_data.shorthold_algorithm;
542 cd->shorthold_data.unitlen_time = mtu->shorthold_data.unitlen_time;
543 cd->shorthold_data.idle_time = mtu->shorthold_data.idle_time;
544 cd->shorthold_data.earlyhup_time = mtu->shorthold_data.earlyhup_time;
549 /* soft enable/disable interface */
553 msg_updown_ind_t *mui;
555 mui = (msg_updown_ind_t *)data;
558 if(mui->driver == BDRV_IPR)
561 dlt = ipr_ret_linktab(mui->driver_unit);
562 (*dlt->updown_ind)(mui->driver_unit, mui->updown);
568 /* send ALERT request */
572 msg_alert_req_t *mar;
574 mar = (msg_alert_req_t *)data;
576 if((cd = cd_by_cdid(mar->cdid)) == NULL)
578 NDBGL4(L4_ERR, "I4B_ALERT_REQ ioctl, cdid not found!");
585 (*ctrl_desc[cd->controller].N_ALERT_REQUEST)(mar->cdid);
590 /* version/release number request */
596 mvr = (msg_vr_req_t *)data;
598 mvr->version = VERSION;
604 /* set D-channel protocol for a controller */
610 mpi = (msg_prot_ind_t *)data;
612 ctrl_desc[mpi->controller].protocol = mpi->protocol;
617 /* Download request */
619 case I4B_CTRL_DOWNLOAD:
621 struct isdn_dr_prot *prots = NULL, *prots2 = NULL;
622 struct isdn_download_request *r =
623 (struct isdn_download_request*)data;
626 if (r->controller < 0 || r->controller >= nctrl)
632 if(!ctrl_desc[r->controller].N_DOWNLOAD)
638 prots = kmalloc(r->numprotos * sizeof(struct isdn_dr_prot),
641 prots2 = kmalloc(r->numprotos * sizeof(struct isdn_dr_prot),
644 copyin(r->protocols, prots, r->numprotos * sizeof(struct isdn_dr_prot));
646 for(i = 0; i < r->numprotos; i++)
648 prots2[i].microcode = kmalloc(prots[i].bytecount, M_DEVBUF, M_WAITOK);
649 copyin(prots[i].microcode, prots2[i].microcode, prots[i].bytecount);
650 prots2[i].bytecount = prots[i].bytecount;
653 error = ctrl_desc[r->controller].N_DOWNLOAD(
654 ctrl_desc[r->controller].unit,
655 r->numprotos, prots2);
660 for(i = 0; i < r->numprotos; i++)
662 if(prots2[i].microcode)
664 kfree(prots2[i].microcode, M_DEVBUF);
667 kfree(prots2, M_DEVBUF);
672 kfree(prots, M_DEVBUF);
677 /* Diagnostic request */
679 case I4B_ACTIVE_DIAGNOSTIC:
681 struct isdn_diagnostic_request req, *r =
682 (struct isdn_diagnostic_request*)data;
684 req.in_param = req.out_param = NULL;
685 if (r->controller < 0 || r->controller >= nctrl)
691 if(!ctrl_desc[r->controller].N_DIAGNOSTICS)
697 memcpy(&req, r, sizeof(req));
701 /* XXX arbitrary limit */
702 if (req.in_param_len >
703 I4B_ACTIVE_DIAGNOSTIC_MAXPARAMLEN) {
708 req.in_param = kmalloc(r->in_param_len, M_DEVBUF, M_WAITOK);
710 error = copyin(r->in_param, req.in_param, req.in_param_len);
715 if(req.out_param_len)
716 req.out_param = kmalloc(r->out_param_len, M_DEVBUF, M_WAITOK);
718 error = ctrl_desc[r->controller].N_DIAGNOSTICS(r->controller, &req);
720 if(!error && req.out_param_len)
721 error = copyout(req.out_param, r->out_param, req.out_param_len);
725 kfree(req.in_param, M_DEVBUF);
728 kfree(req.out_param, M_DEVBUF);
743 /*---------------------------------------------------------------------------*
744 * i4bpoll - device driver poll routine
745 *---------------------------------------------------------------------------*/
747 i4bpoll(struct dev_poll_args *ap)
749 cdev_t dev = ap->a_head.a_dev;
757 if (ap->a_events & (POLLIN|POLLRDNORM)) {
759 if (!IF_QEMPTY(&i4b_rdqueue)) {
760 revents |= POLLIN | POLLRDNORM;
762 selrecord(curthread, &select_rd_info);
768 if (ap->a_events & (POLLOUT|POLLWRNORM)) {
769 revents |= ap->a_events & (POLLOUT | POLLWRNORM);
771 ap->a_events = revents;
775 /*---------------------------------------------------------------------------*
776 * i4bputqueue - put message into queue to userland
777 *---------------------------------------------------------------------------*/
779 i4bputqueue(struct mbuf *m)
789 if(IF_QFULL(&i4b_rdqueue))
792 IF_DEQUEUE(&i4b_rdqueue, m1);
794 NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
797 IF_ENQUEUE(&i4b_rdqueue, m);
804 wakeup((caddr_t) &i4b_rdqueue);
810 selwakeup(&select_rd_info);
814 /*---------------------------------------------------------------------------*
815 * i4bputqueue_hipri - put message into front of queue to userland
816 *---------------------------------------------------------------------------*/
818 i4bputqueue_hipri(struct mbuf *m)
828 if(IF_QFULL(&i4b_rdqueue))
831 IF_DEQUEUE(&i4b_rdqueue, m1);
833 NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
836 IF_PREPEND(&i4b_rdqueue, m);
843 wakeup((caddr_t) &i4b_rdqueue);
849 selwakeup(&select_rd_info);
853 #endif /* NI4B > 0 */