19c749625f
ISDN4BSD is the work of our brand-new comitter: Hellmuth Michaelis, who has done a tremendous amount of work to bring us this far. There are still some outstanding issues and files to bring into the tree, and for now it will be needed to pick up all the extra docs from the isdn4bsd release. It is probably also a very good idea to subscribe to the isdn@freebsd.org mailing list before you try this out. These files correspond to release "beta Version 0.70.00 / December 1998" from Hellmuth.
833 lines
18 KiB
C
833 lines
18 KiB
C
/*
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* Copyright (c) 1997, 1998 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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*
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* $Id: i4b_i4bdrv.c,v 1.33 1998/12/12 19:44:36 hm Exp $
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*
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* last edit-date: [Sat Dec 5 18:35:02 1998]
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*
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*---------------------------------------------------------------------------*/
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#include "i4b.h"
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#include "i4bipr.h"
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#if NI4B > 1
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#error "only 1 (one) i4b device possible!"
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#endif
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#if NI4B > 0
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#include <sys/param.h>
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#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
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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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#else
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#include <sys/ioctl.h>
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#endif
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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/proc.h>
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#include <sys/fcntl.h>
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#include <sys/socket.h>
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#include <sys/select.h>
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#include <net/if.h>
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#ifdef __FreeBSD__
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#include "opt_devfs.h"
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#endif
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#ifdef DEVFS
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#include <sys/devfsext.h>
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#endif
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#ifdef __FreeBSD__
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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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#else
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#include <i4b/i4b_debug.h>
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#include <i4b/i4b_ioctl.h>
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#include <i4b/i4b_cause.h>
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#endif
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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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#if defined(__FreeBSD__) && (!defined(__FreeBSD_version) || __FreeBSD_version < 300001)
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/* do nothing */
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#else
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#include <sys/poll.h>
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#endif
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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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#ifdef DEVFS
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static void *devfs_token;
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#endif
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#ifndef __FreeBSD__
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#define PDEVSTATIC /* - not static - */
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PDEVSTATIC void i4battach __P((void));
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PDEVSTATIC int i4bopen __P((dev_t dev, int flag, int fmt, struct proc *p));
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PDEVSTATIC int i4bclose __P((dev_t dev, int flag, int fmt, struct proc *p));
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PDEVSTATIC int i4bread __P((dev_t dev, struct uio *uio, int ioflag));
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PDEVSTATIC int i4bioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct proc *p));
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PDEVSTATIC int i4bpoll __P((dev_t dev, int events, struct proc *p));
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#if defined (__OpenBSD__)
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PDEVSTATIC int i4bselect(dev_t dev, int rw, struct proc *p);
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#endif
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#endif
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#if BSD > 199306 && defined(__FreeBSD__)
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#define PDEVSTATIC static
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PDEVSTATIC d_open_t i4bopen;
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PDEVSTATIC d_close_t i4bclose;
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PDEVSTATIC d_read_t i4bread;
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PDEVSTATIC d_ioctl_t i4bioctl;
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#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
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PDEVSTATIC d_poll_t i4bpoll;
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#else
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PDEVSTATIC d_select_t i4bselect;
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#endif
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#define CDEV_MAJOR 60
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static struct cdevsw i4b_cdevsw =
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{ i4bopen, i4bclose, i4bread, nowrite,
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i4bioctl, nostop, nullreset, nodevtotty,
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#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
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i4bpoll, nommap, NULL, "i4b", NULL, -1 };
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#else
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i4bselect, nommap, NULL, "i4b", NULL, -1 };
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#endif
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PDEVSTATIC void i4battach(void *);
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PSEUDO_SET(i4battach, i4b_i4bdrv);
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#endif /* __FreeBSD__ */
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/*---------------------------------------------------------------------------*
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* interface attach routine
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*---------------------------------------------------------------------------*/
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PDEVSTATIC void
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#ifdef __FreeBSD__
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i4battach(void *dummy)
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#else
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i4battach()
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#endif
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{
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#ifndef HACK_NO_PSEUDO_ATTACH_MSG
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printf("i4b: ISDN call control device attached\n");
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#endif
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i4b_rdqueue.ifq_maxlen = IFQ_MAXLEN;
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#ifdef DEVFS
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devfs_token = devfs_add_devswf(&i4b_cdevsw, 0, DV_CHR,
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UID_ROOT, GID_WHEEL, 0600,
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"i4b", 0);
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#endif
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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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PDEVSTATIC int
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i4bopen(dev_t dev, int flag, int fmt, struct proc *p)
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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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PDEVSTATIC int
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i4bclose(dev_t dev, int flag, int fmt, struct proc *p)
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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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PDEVSTATIC int
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i4bread(dev_t 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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while(IF_QEMPTY(&i4b_rdqueue))
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{
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x = splimp();
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readflag = 1;
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splx(x);
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tsleep((caddr_t) &i4b_rdqueue, (PZERO + 1) | PCATCH, "bird", 0);
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}
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x = splimp();
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IF_DEQUEUE(&i4b_rdqueue, m);
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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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PDEVSTATIC int
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#if defined (__FreeBSD_version) && __FreeBSD_version >= 300003
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i4bioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
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#else
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i4bioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
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#endif
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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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DBGL4(L4_ERR, "i4bioctl", ("I4B_CONNECT_REQ ioctl, cdid not found!\n"));
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error = EINVAL;
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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->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->unitlen_time = mcr->unitlen_time;
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cd->idle_time = mcr->idle_time;
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cd->earlyhup_time = mcr->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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DBGL4(L4_TIMO, "i4bioctl", ("I4B_CONNECT_REQ times, unitlen=%ld idle=%ld earlyhup=%ld\n",
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(long)cd->unitlen_time, (long)cd->idle_time, (long)cd->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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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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if((ctrl_desc[mcr->controller].bch_state[CHAN_B1] != BCH_ST_FREE) &&
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(ctrl_desc[mcr->controller].bch_state[CHAN_B2] != 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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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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DBGL4(L4_ERR, "i4bioctl", ("I4B_CONNECT_RESP ioctl, cdid not found!\n"));
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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->unitlen_time = 0; /* this is incoming */
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cd->idle_time = 0;
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cd->earlyhup_time = 0;
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cd->isdntxdelay = mcrsp->txdelay;
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DBGL4(L4_TIMO, "i4bioctl", ("I4B_CONNECT_RESP max_idle_time set to %ld seconds\n", (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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DBGL4(L4_ERR, "i4bioctl", ("I4B_DISCONNECT_REQ ioctl, cdid not found!\n"));
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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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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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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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msg_dialout_resp_t *mdrsp;
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mdrsp = (msg_dialout_resp_t *)data;
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#if NI4BIPR > 0
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if(mdrsp->driver == BDRV_IPR)
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{
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drvr_link_t *dlt;
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dlt = ipr_ret_linktab(mdrsp->driver_unit);
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(*dlt->dial_response)(mdrsp->driver_unit, mdrsp->stat);
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}
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#endif
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break;
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}
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/* update timeout value */
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case I4B_TIMEOUT_UPD:
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{
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msg_timeout_upd_t *mtu;
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int x;
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mtu = (msg_timeout_upd_t *)data;
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if((cd = cd_by_cdid(mtu->cdid)) == NULL)/* get cd */
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{
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DBGL4(L4_ERR, "i4bioctl", ("I4B_TIMEOUT_UPD ioctl, cdid not found!\n"));
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error = EINVAL;
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break;
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}
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x = SPLI4B();
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cd->unitlen_time = mtu->unitlen_time;
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cd->idle_time = mtu->idle_time;
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cd->earlyhup_time = mtu->earlyhup_time;
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splx(x);
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break;
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}
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/* soft enable/disable interface */
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case I4B_UPDOWN_IND:
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{
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msg_updown_ind_t *mui;
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mui = (msg_updown_ind_t *)data;
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#if NI4BIPR > 0
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if(mui->driver == BDRV_IPR)
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{
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drvr_link_t *dlt;
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dlt = ipr_ret_linktab(mui->driver_unit);
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(*dlt->updown_ind)(mui->driver_unit, mui->updown);
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}
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#endif
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break;
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}
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/* send ALERT request */
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case I4B_ALERT_REQ:
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{
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msg_alert_req_t *mar;
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mar = (msg_alert_req_t *)data;
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if((cd = cd_by_cdid(mar->cdid)) == NULL)
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{
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DBGL4(L4_ERR, "i4bioctl", ("I4B_ALERT_REQ ioctl, cdid not found!\n"));
|
|
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;
|
|
}
|
|
|
|
/* 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(!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(!ctrl_desc[r->controller].N_DIAGNOSTICS)
|
|
{
|
|
error = ENODEV;
|
|
goto diag_done;
|
|
}
|
|
|
|
memcpy(&req, r, sizeof(req));
|
|
|
|
if(req.in_param_len)
|
|
{
|
|
req.in_param = malloc(r->in_param_len, M_DEVBUF, M_WAITOK);
|
|
|
|
if(!req.in_param)
|
|
{
|
|
error = ENOMEM;
|
|
goto diag_done;
|
|
}
|
|
copyin(r->in_param, req.in_param, req.in_param_len);
|
|
}
|
|
|
|
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)
|
|
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);
|
|
}
|
|
|
|
#if (defined(__FreeBSD__) && \
|
|
(!defined(__FreeBSD_version) || (__FreeBSD_version < 300001))) \
|
|
|| defined (__OpenBSD__)
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* i4bselect - device driver select routine
|
|
*---------------------------------------------------------------------------*/
|
|
PDEVSTATIC int
|
|
i4bselect(dev_t dev, int rw, struct proc *p)
|
|
{
|
|
int x;
|
|
|
|
if(minor(dev))
|
|
return(ENODEV);
|
|
|
|
switch(rw)
|
|
{
|
|
case FREAD:
|
|
if(!IF_QEMPTY(&i4b_rdqueue))
|
|
return(1);
|
|
x = splimp();
|
|
selrecord(p, &select_rd_info);
|
|
selflag = 1;
|
|
splx(x);
|
|
return(0);
|
|
break;
|
|
|
|
case FWRITE:
|
|
return(1);
|
|
break;
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
#else /* NetBSD and FreeBSD -current */
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* i4bpoll - device driver poll routine
|
|
*---------------------------------------------------------------------------*/
|
|
PDEVSTATIC int
|
|
i4bpoll(dev_t dev, int events, struct proc *p)
|
|
{
|
|
int x;
|
|
|
|
if(minor(dev))
|
|
return(ENODEV);
|
|
|
|
if((events & POLLIN) || (events & POLLRDNORM))
|
|
{
|
|
if(!IF_QEMPTY(&i4b_rdqueue))
|
|
return(1);
|
|
|
|
x = splimp();
|
|
selrecord(p, &select_rd_info);
|
|
selflag = 1;
|
|
splx(x);
|
|
return(0);
|
|
}
|
|
else if((events & POLLOUT) || (events & POLLWRNORM))
|
|
{
|
|
return(1);
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
#endif /* defined(__FreeBSD__) && __FreeBSD__ < 3 */
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* i4bputqueue - put message into queue to userland
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
i4bputqueue(struct mbuf *m)
|
|
{
|
|
int x;
|
|
|
|
if(!openflag)
|
|
{
|
|
i4b_Dfreembuf(m);
|
|
return;
|
|
}
|
|
|
|
x = splimp();
|
|
|
|
if(IF_QFULL(&i4b_rdqueue))
|
|
{
|
|
struct mbuf *m1;
|
|
IF_DEQUEUE(&i4b_rdqueue, m1);
|
|
i4b_Dfreembuf(m1);
|
|
DBGL4(L4_ERR, "i4bputqueue", ("ERROR, queue full, removing entry!\n"));
|
|
}
|
|
|
|
IF_ENQUEUE(&i4b_rdqueue, m);
|
|
|
|
splx(x);
|
|
|
|
if(readflag)
|
|
{
|
|
readflag = 0;
|
|
wakeup((caddr_t) &i4b_rdqueue);
|
|
}
|
|
|
|
if(selflag)
|
|
{
|
|
selflag = 0;
|
|
selwakeup(&select_rd_info);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* 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(IF_QFULL(&i4b_rdqueue))
|
|
{
|
|
struct mbuf *m1;
|
|
IF_DEQUEUE(&i4b_rdqueue, m1);
|
|
i4b_Dfreembuf(m1);
|
|
DBGL4(L4_ERR, "i4bputqueue", ("ERROR, queue full, removing entry!\n"));
|
|
}
|
|
|
|
IF_PREPEND(&i4b_rdqueue, m);
|
|
|
|
splx(x);
|
|
|
|
if(readflag)
|
|
{
|
|
readflag = 0;
|
|
wakeup((caddr_t) &i4b_rdqueue);
|
|
}
|
|
|
|
if(selflag)
|
|
{
|
|
selflag = 0;
|
|
selwakeup(&select_rd_info);
|
|
}
|
|
}
|
|
|
|
#if BSD > 199306 && defined(__FreeBSD__)
|
|
static i4b_devsw_installed = 0;
|
|
|
|
static void
|
|
i4b_drvinit(void *unused)
|
|
{
|
|
dev_t dev;
|
|
|
|
if( ! i4b_devsw_installed ) {
|
|
dev = makedev(CDEV_MAJOR,0);
|
|
cdevsw_add(&dev,&i4b_cdevsw,NULL);
|
|
i4b_devsw_installed = 1;
|
|
}
|
|
}
|
|
|
|
SYSINIT(i4bdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,i4b_drvinit,NULL)
|
|
#endif /* __FreeBSD__ */
|
|
#endif /* NI4B > 0 */
|