f37a929ca1
remaining consumers to have the count passed as an option. This is i4b, pc98/wdc, and coda. Bump configvers.h from 500013 to 600000. Remove heuristics that tried to parse "device ed5" as 5 units of the ed device. This broke things like the snd_emu10k1 device, which required quotes to make it parse right. The no-longer-needed quotes have been removed from NOTES, GENERIC etc. eg, I've removed the quotes from: device snd_maestro device "snd_maestro3" device snd_mss I believe everything will still compile and work after this.
865 lines
19 KiB
C
865 lines
19 KiB
C
/*
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* Copyright (c) 1997, 2002 Hellmuth Michaelis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------
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*
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* i4b_i4bdrv.c - i4b userland interface driver
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* --------------------------------------------
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* last edit-date: [Sun Aug 11 12:42:46 2002]
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*
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*---------------------------------------------------------------------------*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_i4b.h"
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#include <sys/param.h>
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#include <sys/ioccom.h>
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#include <sys/malloc.h>
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#include <sys/uio.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/selinfo.h>
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#include <net/if.h>
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#include <machine/i4b_debug.h>
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#include <machine/i4b_ioctl.h>
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#include <machine/i4b_cause.h>
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#include <i4b/include/i4b_l3l4.h>
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#include <i4b/include/i4b_mbuf.h>
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#include <i4b/include/i4b_global.h>
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#include <i4b/layer4/i4b_l4.h>
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#include <sys/poll.h>
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struct selinfo select_rd_info;
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static struct ifqueue i4b_rdqueue;
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static int openflag = 0;
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static int selflag = 0;
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static int readflag = 0;
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static d_open_t i4bopen;
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static d_close_t i4bclose;
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static d_read_t i4bread;
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static d_ioctl_t i4bioctl;
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static d_poll_t i4bpoll;
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static struct cdevsw i4b_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = D_NEEDGIANT,
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.d_open = i4bopen,
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.d_close = i4bclose,
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.d_read = i4bread,
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.d_ioctl = i4bioctl,
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.d_poll = i4bpoll,
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.d_name = "i4b",
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};
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static void i4battach(void *);
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PSEUDO_SET(i4battach, i4b_i4bdrv);
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/*---------------------------------------------------------------------------*
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* interface attach routine
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*---------------------------------------------------------------------------*/
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static void
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i4battach(void *dummy)
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{
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printf("i4b: ISDN call control device attached\n");
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i4b_rdqueue.ifq_maxlen = IFQ_MAXLEN;
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if(!mtx_initialized(&i4b_rdqueue.ifq_mtx))
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mtx_init(&i4b_rdqueue.ifq_mtx, "i4b_rdqueue", NULL, MTX_DEF);
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make_dev(&i4b_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "i4b");
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}
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/*---------------------------------------------------------------------------*
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* i4bopen - device driver open routine
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*---------------------------------------------------------------------------*/
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static int
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i4bopen(struct cdev *dev, int flag, int fmt, struct thread *td)
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{
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int x;
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if(minor(dev))
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return(ENXIO);
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if(openflag)
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return(EBUSY);
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x = splimp();
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openflag = 1;
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i4b_l4_daemon_attached();
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splx(x);
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return(0);
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}
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/*---------------------------------------------------------------------------*
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* i4bclose - device driver close routine
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*---------------------------------------------------------------------------*/
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static int
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i4bclose(struct cdev *dev, int flag, int fmt, struct thread *td)
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{
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int x = splimp();
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openflag = 0;
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i4b_l4_daemon_detached();
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i4b_Dcleanifq(&i4b_rdqueue);
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splx(x);
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return(0);
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}
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/*---------------------------------------------------------------------------*
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* i4bread - device driver read routine
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*---------------------------------------------------------------------------*/
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static int
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i4bread(struct cdev *dev, struct uio *uio, int ioflag)
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{
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struct mbuf *m;
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int x;
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int error = 0;
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if(minor(dev))
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return(ENODEV);
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x = splimp();
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IF_LOCK(&i4b_rdqueue);
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while(IF_QEMPTY(&i4b_rdqueue))
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{
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readflag = 1;
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error = msleep( &i4b_rdqueue, &i4b_rdqueue.ifq_mtx,
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(PZERO + 1) | PCATCH, "bird", 0);
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if (error != 0) {
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IF_UNLOCK(&i4b_rdqueue);
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splx(x);
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return error;
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}
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}
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_IF_DEQUEUE(&i4b_rdqueue, m);
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IF_UNLOCK(&i4b_rdqueue);
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splx(x);
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if(m && m->m_len)
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error = uiomove(m->m_data, m->m_len, uio);
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else
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error = EIO;
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if(m)
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i4b_Dfreembuf(m);
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return(error);
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}
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/*---------------------------------------------------------------------------*
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* i4bioctl - device driver ioctl routine
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*---------------------------------------------------------------------------*/
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static int
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i4bioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
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{
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call_desc_t *cd;
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int error = 0;
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if(minor(dev))
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return(ENODEV);
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switch(cmd)
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{
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/* cdid request, reserve cd and return cdid */
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case I4B_CDID_REQ:
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{
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msg_cdid_req_t *mir;
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mir = (msg_cdid_req_t *)data;
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cd = reserve_cd();
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mir->cdid = cd->cdid;
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break;
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}
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/* connect request, dial out to remote */
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case I4B_CONNECT_REQ:
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{
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msg_connect_req_t *mcr;
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mcr = (msg_connect_req_t *)data; /* setup ptr */
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if((cd = cd_by_cdid(mcr->cdid)) == NULL)/* get cd */
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{
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NDBGL4(L4_ERR, "I4B_CONNECT_REQ ioctl, cdid not found!");
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error = EINVAL;
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break;
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}
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/* prevent dialling on leased lines */
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if(ctrl_desc[mcr->controller].protocol == PROTOCOL_D64S)
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{
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SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
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SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_LLDIAL);
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i4b_l4_disconnect_ind(cd);
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freecd_by_cd(cd);
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break;
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}
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cd->controller = mcr->controller; /* fill cd */
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cd->bprot = mcr->bprot;
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cd->bcap = mcr->bcap;
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cd->driver = mcr->driver;
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cd->driver_unit = mcr->driver_unit;
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cd->cr = get_rand_cr(ctrl_desc[cd->controller].unit);
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cd->shorthold_data.shorthold_algorithm = mcr->shorthold_data.shorthold_algorithm;
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cd->shorthold_data.unitlen_time = mcr->shorthold_data.unitlen_time;
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cd->shorthold_data.idle_time = mcr->shorthold_data.idle_time;
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cd->shorthold_data.earlyhup_time = mcr->shorthold_data.earlyhup_time;
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cd->last_aocd_time = 0;
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if(mcr->unitlen_method == ULEN_METHOD_DYNAMIC)
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cd->aocd_flag = 1;
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else
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cd->aocd_flag = 0;
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cd->cunits = 0;
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cd->max_idle_time = 0; /* this is outgoing */
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cd->dir = DIR_OUTGOING;
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NDBGL4(L4_TIMO, "I4B_CONNECT_REQ times, algorithm=%ld unitlen=%ld idle=%ld earlyhup=%ld",
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(long)cd->shorthold_data.shorthold_algorithm, (long)cd->shorthold_data.unitlen_time,
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(long)cd->shorthold_data.idle_time, (long)cd->shorthold_data.earlyhup_time);
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strcpy(cd->dst_telno, mcr->dst_telno);
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strcpy(cd->src_telno, mcr->src_telno);
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strcpy(cd->dst_subaddr, mcr->dst_subaddr);
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strcpy(cd->src_subaddr, mcr->src_subaddr);
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if(mcr->keypad[0] != '\0')
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strcpy(cd->keypad, mcr->keypad);
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else
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cd->keypad[0] = '\0';
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cd->display[0] = '\0';
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SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
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SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NORMAL);
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switch(mcr->channel)
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{
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case CHAN_B1:
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case CHAN_B2:
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if(ctrl_desc[mcr->controller].bch_state[mcr->channel] != BCH_ST_FREE)
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SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
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break;
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case CHAN_ANY:
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{
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int i;
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for (i = 0;
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i < ctrl_desc[mcr->controller].nbch &&
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ctrl_desc[mcr->controller].bch_state[i] != BCH_ST_FREE;
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i++);
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if (i == ctrl_desc[mcr->controller].nbch)
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SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
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/* else mcr->channel = i; XXX */
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}
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break;
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default:
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SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
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break;
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}
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cd->channelid = mcr->channel;
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cd->isdntxdelay = mcr->txdelay;
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/* check whether we have a pointer. Seems like */
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/* this should be adequate. GJ 19.09.97 */
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if(ctrl_desc[cd->controller].N_CONNECT_REQUEST == NULL)
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/*XXX*/ SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
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if((GET_CAUSE_VAL(cd->cause_in)) != CAUSE_I4B_NORMAL)
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{
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i4b_l4_disconnect_ind(cd);
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freecd_by_cd(cd);
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}
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else
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{
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(*ctrl_desc[cd->controller].N_CONNECT_REQUEST)(mcr->cdid);
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}
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break;
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}
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/* connect response, accept/reject/ignore incoming call */
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case I4B_CONNECT_RESP:
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{
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msg_connect_resp_t *mcrsp;
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mcrsp = (msg_connect_resp_t *)data;
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if((cd = cd_by_cdid(mcrsp->cdid)) == NULL)/* get cd */
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{
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NDBGL4(L4_ERR, "I4B_CONNECT_RESP ioctl, cdid not found!");
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error = EINVAL;
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break;
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}
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T400_stop(cd);
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cd->driver = mcrsp->driver;
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cd->driver_unit = mcrsp->driver_unit;
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cd->max_idle_time = mcrsp->max_idle_time;
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cd->shorthold_data.shorthold_algorithm = SHA_FIXU;
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cd->shorthold_data.unitlen_time = 0; /* this is incoming */
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cd->shorthold_data.idle_time = 0;
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cd->shorthold_data.earlyhup_time = 0;
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cd->isdntxdelay = mcrsp->txdelay;
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NDBGL4(L4_TIMO, "I4B_CONNECT_RESP max_idle_time set to %ld seconds", (long)cd->max_idle_time);
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(*ctrl_desc[cd->controller].N_CONNECT_RESPONSE)(mcrsp->cdid, mcrsp->response, mcrsp->cause);
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break;
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}
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/* disconnect request, actively terminate connection */
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case I4B_DISCONNECT_REQ:
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{
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msg_discon_req_t *mdr;
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mdr = (msg_discon_req_t *)data;
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if((cd = cd_by_cdid(mdr->cdid)) == NULL)/* get cd */
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{
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NDBGL4(L4_ERR, "I4B_DISCONNECT_REQ ioctl, cdid not found!");
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error = EINVAL;
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break;
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}
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/* preset causes with our cause */
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cd->cause_in = cd->cause_out = mdr->cause;
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(*ctrl_desc[cd->controller].N_DISCONNECT_REQUEST)(mdr->cdid, mdr->cause);
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break;
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}
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/* controller info request */
|
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case I4B_CTRL_INFO_REQ:
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{
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msg_ctrl_info_req_t *mcir;
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mcir = (msg_ctrl_info_req_t *)data;
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mcir->ncontroller = nctrl;
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|
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if(mcir->controller > nctrl)
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{
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mcir->ctrl_type = -1;
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mcir->card_type = -1;
|
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}
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else
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{
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mcir->ctrl_type =
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ctrl_desc[mcir->controller].ctrl_type;
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mcir->card_type =
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ctrl_desc[mcir->controller].card_type;
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mcir->nbch =
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ctrl_desc[mcir->controller].nbch;
|
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|
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if(ctrl_desc[mcir->controller].ctrl_type == CTRL_PASSIVE)
|
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mcir->tei = ctrl_desc[mcir->controller].tei;
|
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else
|
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mcir->tei = -1;
|
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}
|
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break;
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}
|
|
|
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/* dial response */
|
|
|
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case I4B_DIALOUT_RESP:
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{
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drvr_link_t *dlt = NULL;
|
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msg_dialout_resp_t *mdrsp;
|
|
|
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mdrsp = (msg_dialout_resp_t *)data;
|
|
|
|
switch(mdrsp->driver)
|
|
{
|
|
#if NI4BIPR > 0
|
|
case BDRV_IPR:
|
|
dlt = ipr_ret_linktab(mdrsp->driver_unit);
|
|
break;
|
|
#endif
|
|
|
|
#if NI4BISPPP > 0
|
|
case BDRV_ISPPP:
|
|
dlt = i4bisppp_ret_linktab(mdrsp->driver_unit);
|
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break;
|
|
#endif
|
|
|
|
#if NI4BTEL > 0
|
|
case BDRV_TEL:
|
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dlt = tel_ret_linktab(mdrsp->driver_unit);
|
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break;
|
|
#endif
|
|
|
|
#if NIBC > 0
|
|
case BDRV_IBC:
|
|
dlt = ibc_ret_linktab(mdrsp->driver_unit);
|
|
break;
|
|
#endif
|
|
|
|
#if NI4BING > 0
|
|
case BDRV_ING:
|
|
dlt = ing_ret_linktab(mdrsp->driver_unit);
|
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break;
|
|
#endif
|
|
}
|
|
|
|
if(dlt != NULL)
|
|
(*dlt->dial_response)(mdrsp->driver_unit, mdrsp->stat, mdrsp->cause);
|
|
break;
|
|
}
|
|
|
|
/* update timeout value */
|
|
|
|
case I4B_TIMEOUT_UPD:
|
|
{
|
|
msg_timeout_upd_t *mtu;
|
|
int x;
|
|
|
|
mtu = (msg_timeout_upd_t *)data;
|
|
|
|
NDBGL4(L4_TIMO, "I4B_TIMEOUT_UPD ioctl, alg %d, unit %d, idle %d, early %d!",
|
|
mtu->shorthold_data.shorthold_algorithm, mtu->shorthold_data.unitlen_time,
|
|
mtu->shorthold_data.idle_time, mtu->shorthold_data.earlyhup_time);
|
|
|
|
if((cd = cd_by_cdid(mtu->cdid)) == NULL)/* get cd */
|
|
{
|
|
NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, cdid not found!");
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
switch( mtu->shorthold_data.shorthold_algorithm )
|
|
{
|
|
case SHA_FIXU:
|
|
/*
|
|
* For this algorithm unitlen_time,
|
|
* idle_time and earlyhup_time are used.
|
|
*/
|
|
|
|
if(!(mtu->shorthold_data.unitlen_time >= 0 &&
|
|
mtu->shorthold_data.idle_time >= 0 &&
|
|
mtu->shorthold_data.earlyhup_time >= 0))
|
|
{
|
|
NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for fix unit algorithm!");
|
|
error = EINVAL;
|
|
}
|
|
break;
|
|
|
|
case SHA_VARU:
|
|
/*
|
|
* For this algorithm unitlen_time and
|
|
* idle_time are used. both must be
|
|
* positive integers. earlyhup_time is
|
|
* not used and must be 0.
|
|
*/
|
|
|
|
if(!(mtu->shorthold_data.unitlen_time > 0 &&
|
|
mtu->shorthold_data.idle_time >= 0 &&
|
|
mtu->shorthold_data.earlyhup_time == 0))
|
|
{
|
|
NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for var unit algorithm!");
|
|
error = EINVAL;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid algorithm!");
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* any error set above requires us to break
|
|
* out of the outer switch
|
|
*/
|
|
if(error != 0)
|
|
break;
|
|
|
|
x = SPLI4B();
|
|
cd->shorthold_data.shorthold_algorithm = mtu->shorthold_data.shorthold_algorithm;
|
|
cd->shorthold_data.unitlen_time = mtu->shorthold_data.unitlen_time;
|
|
cd->shorthold_data.idle_time = mtu->shorthold_data.idle_time;
|
|
cd->shorthold_data.earlyhup_time = mtu->shorthold_data.earlyhup_time;
|
|
splx(x);
|
|
break;
|
|
}
|
|
|
|
/* soft enable/disable interface */
|
|
|
|
case I4B_UPDOWN_IND:
|
|
{
|
|
msg_updown_ind_t *mui;
|
|
|
|
mui = (msg_updown_ind_t *)data;
|
|
|
|
#if NI4BIPR > 0
|
|
if(mui->driver == BDRV_IPR)
|
|
{
|
|
drvr_link_t *dlt;
|
|
dlt = ipr_ret_linktab(mui->driver_unit);
|
|
(*dlt->updown_ind)(mui->driver_unit, mui->updown);
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
/* send ALERT request */
|
|
|
|
case I4B_ALERT_REQ:
|
|
{
|
|
msg_alert_req_t *mar;
|
|
|
|
mar = (msg_alert_req_t *)data;
|
|
|
|
if((cd = cd_by_cdid(mar->cdid)) == NULL)
|
|
{
|
|
NDBGL4(L4_ERR, "I4B_ALERT_REQ ioctl, cdid not found!");
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
T400_stop(cd);
|
|
|
|
(*ctrl_desc[cd->controller].N_ALERT_REQUEST)(mar->cdid);
|
|
|
|
break;
|
|
}
|
|
|
|
/* version/release number request */
|
|
|
|
case I4B_VR_REQ:
|
|
{
|
|
msg_vr_req_t *mvr;
|
|
|
|
mvr = (msg_vr_req_t *)data;
|
|
|
|
mvr->version = VERSION;
|
|
mvr->release = REL;
|
|
mvr->step = STEP;
|
|
break;
|
|
}
|
|
|
|
/* set D-channel protocol for a controller */
|
|
|
|
case I4B_PROT_IND:
|
|
{
|
|
msg_prot_ind_t *mpi;
|
|
|
|
mpi = (msg_prot_ind_t *)data;
|
|
|
|
ctrl_desc[mpi->controller].protocol = mpi->protocol;
|
|
|
|
break;
|
|
}
|
|
|
|
/* Download request */
|
|
|
|
case I4B_CTRL_DOWNLOAD:
|
|
{
|
|
struct isdn_dr_prot *prots = NULL, *prots2 = NULL;
|
|
struct isdn_download_request *r =
|
|
(struct isdn_download_request*)data;
|
|
int i;
|
|
|
|
if (r->controller < 0 || r->controller >= nctrl)
|
|
{
|
|
error = ENODEV;
|
|
goto download_done;
|
|
}
|
|
|
|
if(!ctrl_desc[r->controller].N_DOWNLOAD)
|
|
{
|
|
error = ENODEV;
|
|
goto download_done;
|
|
}
|
|
|
|
prots = malloc(r->numprotos * sizeof(struct isdn_dr_prot),
|
|
M_DEVBUF, M_WAITOK);
|
|
|
|
prots2 = malloc(r->numprotos * sizeof(struct isdn_dr_prot),
|
|
M_DEVBUF, M_WAITOK);
|
|
|
|
if(!prots || !prots2)
|
|
{
|
|
error = ENOMEM;
|
|
goto download_done;
|
|
}
|
|
|
|
copyin(r->protocols, prots, r->numprotos * sizeof(struct isdn_dr_prot));
|
|
|
|
for(i = 0; i < r->numprotos; i++)
|
|
{
|
|
prots2[i].microcode = malloc(prots[i].bytecount, M_DEVBUF, M_WAITOK);
|
|
copyin(prots[i].microcode, prots2[i].microcode, prots[i].bytecount);
|
|
prots2[i].bytecount = prots[i].bytecount;
|
|
}
|
|
|
|
error = ctrl_desc[r->controller].N_DOWNLOAD(
|
|
ctrl_desc[r->controller].unit,
|
|
r->numprotos, prots2);
|
|
|
|
download_done:
|
|
if(prots2)
|
|
{
|
|
for(i = 0; i < r->numprotos; i++)
|
|
{
|
|
if(prots2[i].microcode)
|
|
{
|
|
free(prots2[i].microcode, M_DEVBUF);
|
|
}
|
|
}
|
|
free(prots2, M_DEVBUF);
|
|
}
|
|
|
|
if(prots)
|
|
{
|
|
free(prots, M_DEVBUF);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* Diagnostic request */
|
|
|
|
case I4B_ACTIVE_DIAGNOSTIC:
|
|
{
|
|
struct isdn_diagnostic_request req, *r =
|
|
(struct isdn_diagnostic_request*)data;
|
|
|
|
req.in_param = req.out_param = NULL;
|
|
if (r->controller < 0 || r->controller >= nctrl)
|
|
{
|
|
error = ENODEV;
|
|
goto diag_done;
|
|
}
|
|
|
|
if(!ctrl_desc[r->controller].N_DIAGNOSTICS)
|
|
{
|
|
error = ENODEV;
|
|
goto diag_done;
|
|
}
|
|
|
|
memcpy(&req, r, sizeof(req));
|
|
|
|
if(req.in_param_len)
|
|
{
|
|
/* XXX arbitrary limit */
|
|
if (req.in_param_len >
|
|
I4B_ACTIVE_DIAGNOSTIC_MAXPARAMLEN) {
|
|
error = EINVAL;
|
|
goto diag_done;
|
|
}
|
|
|
|
req.in_param = malloc(r->in_param_len, M_DEVBUF, M_WAITOK);
|
|
|
|
if(!req.in_param)
|
|
{
|
|
error = ENOMEM;
|
|
goto diag_done;
|
|
}
|
|
error = copyin(r->in_param, req.in_param, req.in_param_len);
|
|
if (error)
|
|
goto diag_done;
|
|
}
|
|
|
|
if(req.out_param_len)
|
|
{
|
|
req.out_param = malloc(r->out_param_len, M_DEVBUF, M_WAITOK);
|
|
|
|
if(!req.out_param)
|
|
{
|
|
error = ENOMEM;
|
|
goto diag_done;
|
|
}
|
|
}
|
|
|
|
error = ctrl_desc[r->controller].N_DIAGNOSTICS(r->controller, &req);
|
|
|
|
if(!error && req.out_param_len)
|
|
error = copyout(req.out_param, r->out_param, req.out_param_len);
|
|
|
|
diag_done:
|
|
if(req.in_param)
|
|
free(req.in_param, M_DEVBUF);
|
|
|
|
if(req.out_param)
|
|
free(req.out_param, M_DEVBUF);
|
|
|
|
break;
|
|
}
|
|
|
|
/* default */
|
|
|
|
default:
|
|
error = ENOTTY;
|
|
break;
|
|
}
|
|
|
|
return(error);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* i4bpoll - device driver poll routine
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
i4bpoll(struct cdev *dev, int events, struct thread *td)
|
|
{
|
|
int x;
|
|
|
|
if(minor(dev))
|
|
return(ENODEV);
|
|
|
|
if((events & POLLIN) || (events & POLLRDNORM))
|
|
{
|
|
if(!IF_QEMPTY(&i4b_rdqueue))
|
|
return(1);
|
|
|
|
x = splimp();
|
|
selrecord(td, &select_rd_info);
|
|
selflag = 1;
|
|
splx(x);
|
|
return(0);
|
|
}
|
|
else if((events & POLLOUT) || (events & POLLWRNORM))
|
|
{
|
|
return(1);
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* i4bputqueue - put message into queue to userland
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
i4bputqueue(struct mbuf *m)
|
|
{
|
|
int x;
|
|
|
|
if(!openflag)
|
|
{
|
|
i4b_Dfreembuf(m);
|
|
return;
|
|
}
|
|
|
|
x = splimp();
|
|
|
|
IF_LOCK(&i4b_rdqueue);
|
|
if(_IF_QFULL(&i4b_rdqueue))
|
|
{
|
|
struct mbuf *m1;
|
|
_IF_DEQUEUE(&i4b_rdqueue, m1);
|
|
i4b_Dfreembuf(m1);
|
|
NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
|
|
}
|
|
|
|
_IF_ENQUEUE(&i4b_rdqueue, m);
|
|
IF_UNLOCK(&i4b_rdqueue);
|
|
|
|
splx(x);
|
|
|
|
if(readflag)
|
|
{
|
|
readflag = 0;
|
|
wakeup( &i4b_rdqueue);
|
|
}
|
|
|
|
if(selflag)
|
|
{
|
|
selflag = 0;
|
|
selwakeuppri(&select_rd_info, I4BPRI);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* i4bputqueue_hipri - put message into front of queue to userland
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
i4bputqueue_hipri(struct mbuf *m)
|
|
{
|
|
int x;
|
|
|
|
if(!openflag)
|
|
{
|
|
i4b_Dfreembuf(m);
|
|
return;
|
|
}
|
|
|
|
x = splimp();
|
|
|
|
IF_LOCK(&i4b_rdqueue);
|
|
if(_IF_QFULL(&i4b_rdqueue))
|
|
{
|
|
struct mbuf *m1;
|
|
_IF_DEQUEUE(&i4b_rdqueue, m1);
|
|
i4b_Dfreembuf(m1);
|
|
NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
|
|
}
|
|
|
|
_IF_PREPEND(&i4b_rdqueue, m);
|
|
IF_UNLOCK(&i4b_rdqueue);
|
|
|
|
splx(x);
|
|
|
|
if(readflag)
|
|
{
|
|
readflag = 0;
|
|
wakeup( &i4b_rdqueue);
|
|
}
|
|
|
|
if(selflag)
|
|
{
|
|
selflag = 0;
|
|
selwakeuppri(&select_rd_info, I4BPRI);
|
|
}
|
|
}
|