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freebsd/sys/i4b/driver/i4b_ctl.c

214 lines
6.1 KiB
C

/*-
* Copyright (c) 1997, 2002 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
* ------------------------------------------
* last edit-date: [Sun Mar 17 09:49:24 2002]
*
*---------------------------------------------------------------------------*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/ioccom.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/socket.h>
#include <net/if.h>
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#include <i4b/include/i4b_global.h>
#include <i4b/include/i4b_l3l4.h>
#include <i4b/layer2/i4b_l2.h>
static int openflag = 0;
static d_open_t i4bctlopen;
static d_close_t i4bctlclose;
static d_ioctl_t i4bctlioctl;
static d_poll_t i4bctlpoll;
static struct cdevsw i4bctl_cdevsw = {
.d_version = D_VERSION,
.d_flags = D_NEEDGIANT,
.d_open = i4bctlopen,
.d_close = i4bctlclose,
.d_ioctl = i4bctlioctl,
.d_poll = i4bctlpoll,
.d_name = "i4bctl",
};
static void i4bctlattach(void *);
PSEUDO_SET(i4bctlattach, i4b_i4bctldrv);
/*---------------------------------------------------------------------------*
* interface attach routine
*---------------------------------------------------------------------------*/
static void
i4bctlattach(void *dummy)
{
printf("i4bctl: ISDN system control port attached\n");
make_dev(&i4bctl_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "i4bctl");
}
/*---------------------------------------------------------------------------*
* i4bctlopen - device driver open routine
*---------------------------------------------------------------------------*/
static int
i4bctlopen(struct cdev *dev, int flag, int fmt, struct thread *td)
{
if(minor(dev))
return (ENXIO);
if(openflag)
return (EBUSY);
openflag = 1;
return (0);
}
/*---------------------------------------------------------------------------*
* i4bctlclose - device driver close routine
*---------------------------------------------------------------------------*/
static int
i4bctlclose(struct cdev *dev, int flag, int fmt, struct thread *td)
{
openflag = 0;
return (0);
}
/*---------------------------------------------------------------------------*
* i4bctlioctl - device driver ioctl routine
*---------------------------------------------------------------------------*/
static int
i4bctlioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
#if DO_I4B_DEBUG
ctl_debug_t *cdbg;
int error = 0;
#endif
#if !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_CHIPSTAT:
{
struct chipstat *cst;
cst = (struct chipstat *)data;
(*ctrl_desc[cst->driver_unit].N_MGMT_COMMAND)(cst->driver_unit, CMR_GCST, cst);
break;
}
case I4B_CTL_CLR_CHIPSTAT:
{
struct chipstat *cst;
cst = (struct chipstat *)data;
(*ctrl_desc[cst->driver_unit].N_MGMT_COMMAND)(cst->driver_unit, CMR_CCST, cst);
break;
}
case I4B_CTL_GET_LAPDSTAT:
{
l2stat_t *l2s;
l2_softc_t *sc;
l2s = (l2stat_t *)data;
if( l2s->unit < 0 || l2s->unit > MAXL1UNITS)
{
error = EINVAL;
break;
}
sc = &l2_softc[l2s->unit];
bcopy(&sc->stat, &l2s->lapdstat, sizeof(lapdstat_t));
break;
}
case I4B_CTL_CLR_LAPDSTAT:
{
int *up;
l2_softc_t *sc;
up = (int *)data;
if( *up < 0 || *up > MAXL1UNITS)
{
error = EINVAL;
break;
}
sc = &l2_softc[*up];
bzero(&sc->stat, sizeof(lapdstat_t));
break;
}
default:
error = ENOTTY;
break;
}
return(error);
#endif /* DO_I4B_DEBUG */
}
/*---------------------------------------------------------------------------*
* i4bctlpoll - device driver poll routine
*---------------------------------------------------------------------------*/
static int
i4bctlpoll (struct cdev *dev, int events, struct thread *td)
{
return (ENODEV);
}