freebsd-dev/sys/i4b/driver/i4b_ctl.c
Poul-Henning Kamp 19c749625f Initial entry of ISDN4BSD into the FreeBSD tree.
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.
1998-12-27 21:47:14 +00:00

304 lines
8.2 KiB
C

/*
* Copyright (c) 1997, 1998 Hellmuth Michaelis. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*---------------------------------------------------------------------------
*
* i4b_ctl.c - i4b system control port driver
* ------------------------------------------
*
* $Id: i4b_ctl.c,v 1.17 1998/12/05 18:02:39 hm Exp $
*
* last edit-date: [Sat Dec 5 17:59:15 1998]
*
*---------------------------------------------------------------------------*/
#include "i4bctl.h"
#if NI4BCTL > 1
#error "only 1 (one) i4bctl device allowed!"
#endif
#if NI4BCTL > 0
#include <sys/param.h>
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
#include <sys/ioccom.h>
#include <i386/isa/isa_device.h>
#else
#include <sys/ioctl.h>
#endif
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/mbuf.h>
#include <sys/proc.h>
#include <sys/fcntl.h>
#include <sys/socket.h>
#include <net/if.h>
#ifdef __FreeBSD__
#include "opt_devfs.h"
#endif
#ifdef DEVFS
#include <sys/devfsext.h>
#endif
#ifdef __FreeBSD__
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#else
#include <machine/bus.h>
#include <sys/device.h>
#include <i4b/i4b_debug.h>
#include <i4b/i4b_ioctl.h>
#endif
#include <i4b/include/i4b_global.h>
#include <i4b/include/i4b_mbuf.h>
#include <i4b/layer1/i4b_l1.h>
static int openflag = 0;
#if BSD > 199306 && defined(__FreeBSD__)
static d_open_t i4bctlopen;
static d_close_t i4bctlclose;
static d_ioctl_t i4bctlioctl;
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
static d_poll_t i4bctlpoll;
#endif
#define CDEV_MAJOR 55
static struct cdevsw i4bctl_cdevsw =
{ i4bctlopen, i4bctlclose, noread, nowrite,
i4bctlioctl, nostop, nullreset, nodevtotty,
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
i4bctlpoll, nommap, NULL, "i4bctl", NULL, -1 };
#else
noselect, nommap, NULL, "i4bctl", NULL, -1 };
#endif
static void i4bctlattach(void *);
PSEUDO_SET(i4bctlattach, i4b_i4bctldrv);
#define PDEVSTATIC static
#endif /* __FreeBSD__ */
#ifdef DEVFS
static void *devfs_token;
#endif
#ifndef __FreeBSD__
#define PDEVSTATIC /* */
void i4bctlattach __P((void));
int i4bctlopen __P((dev_t dev, int flag, int fmt, struct proc *p));
int i4bctlclose __P((dev_t dev, int flag, int fmt, struct proc *p));
int i4bctlioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct proc *p));
#endif /* !FreeBSD */
#if BSD > 199306 && defined(__FreeBSD__)
/*---------------------------------------------------------------------------*
* initialization at kernel load time
*---------------------------------------------------------------------------*/
static void
i4bctlinit(void *unused)
{
dev_t dev;
dev = makedev(CDEV_MAJOR, 0);
cdevsw_add(&dev, &i4bctl_cdevsw, NULL);
}
SYSINIT(i4bctldev, SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, &i4bctlinit, NULL);
#endif /* BSD > 199306 && defined(__FreeBSD__) */
/*---------------------------------------------------------------------------*
* interface attach routine
*---------------------------------------------------------------------------*/
PDEVSTATIC void
#ifdef __FreeBSD__
i4bctlattach(void *dummy)
#else
i4bctlattach()
#endif
{
#ifndef HACK_NO_PSEUDO_ATTACH_MSG
printf("i4bctl: ISDN system control port attached\n");
#endif
#ifdef DEVFS
devfs_token = devfs_add_devswf(&i4bctl_cdevsw, 0, DV_CHR,
UID_ROOT, GID_WHEEL, 0600,
"i4bctl", 0);
#endif
}
/*---------------------------------------------------------------------------*
* i4bctlopen - device driver open routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
i4bctlopen(dev_t dev, int flag, int fmt, struct proc *p)
{
if(minor(dev))
return (ENXIO);
if(openflag)
return (EBUSY);
openflag = 1;
return (0);
}
/*---------------------------------------------------------------------------*
* i4bctlclose - device driver close routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
i4bctlclose(dev_t dev, int flag, int fmt, struct proc *p)
{
openflag = 0;
return (0);
}
/*---------------------------------------------------------------------------*
* i4bctlioctl - device driver ioctl routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
#if defined (__FreeBSD_version) && __FreeBSD_version >= 300003
i4bctlioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
#else
i4bctlioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
#endif
{
ctl_debug_t *cdbg;
int error = 0;
#ifndef DO_I4B_DEBUG
return(ENODEV);
#else
if(minor(dev))
return(ENODEV);
switch(cmd)
{
case I4B_CTL_GET_DEBUG:
cdbg = (ctl_debug_t *)data;
cdbg->l1 = i4b_l1_debug;
cdbg->l2 = i4b_l2_debug;
cdbg->l3 = i4b_l3_debug;
cdbg->l4 = i4b_l4_debug;
break;
case I4B_CTL_SET_DEBUG:
cdbg = (ctl_debug_t *)data;
i4b_l1_debug = cdbg->l1;
i4b_l2_debug = cdbg->l2;
i4b_l3_debug = cdbg->l3;
i4b_l4_debug = cdbg->l4;
break;
case I4B_CTL_GET_HSCXSTAT:
{
hscxstat_t *hst;
struct isic_softc *sc;
hst = (hscxstat_t *)data;
if( hst->unit < 0 ||
hst->unit > ISIC_MAXUNIT ||
hst->chan < 0 ||
hst->chan > 1 )
{
error = EINVAL;
break;
}
#ifndef __FreeBSD__
sc = isic_find_sc(hst->unit);
#else
sc = &isic_sc[hst->unit];
#endif
hst->vfr = sc->sc_chan[hst->chan].stat_VFR;
hst->rdo = sc->sc_chan[hst->chan].stat_RDO;
hst->crc = sc->sc_chan[hst->chan].stat_CRC;
hst->rab = sc->sc_chan[hst->chan].stat_RAB;
hst->xdu = sc->sc_chan[hst->chan].stat_XDU;
hst->rfo = sc->sc_chan[hst->chan].stat_RFO;
break;
}
case I4B_CTL_CLR_HSCXSTAT:
{
hscxstat_t *hst;
struct isic_softc *sc;
hst = (hscxstat_t *)data;
if( hst->unit < 0 ||
hst->unit > ISIC_MAXUNIT ||
hst->chan < 0 ||
hst->chan > 1 )
{
error = EINVAL;
break;
}
#ifndef __FreeBSD__
sc = isic_find_sc(hst->unit);
#else
sc = &isic_sc[hst->unit];
#endif
sc->sc_chan[hst->chan].stat_VFR = 0;
sc->sc_chan[hst->chan].stat_RDO = 0;
sc->sc_chan[hst->chan].stat_CRC = 0;
sc->sc_chan[hst->chan].stat_RAB = 0;
sc->sc_chan[hst->chan].stat_XDU = 0;
sc->sc_chan[hst->chan].stat_RFO = 0;
break;
}
default:
error = ENOTTY;
break;
}
return(error);
#endif DO_I4B_DEBUG
}
/*---------------------------------------------------------------------------*
* i4bctlpoll - device driver poll routine
*---------------------------------------------------------------------------*/
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
static int
i4bctlpoll (dev_t dev, int events, struct proc *p)
{
return (ENODEV);
}
#endif
#endif /* NI4BCTL > 0 */