245 lines
6.7 KiB
C
245 lines
6.7 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_ctl.c - i4b system control port driver
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* ------------------------------------------
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*
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* $FreeBSD$
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*
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* last edit-date: [Sun Mar 17 09:49:24 2002]
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*
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*---------------------------------------------------------------------------*/
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#include "i4bctl.h"
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#if NI4BCTL > 1
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#error "only 1 (one) i4bctl device allowed!"
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#endif
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#if NI4BCTL > 0
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#include <sys/param.h>
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#include <sys/ioccom.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/socket.h>
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#include <net/if.h>
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#ifdef DEVFS
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#include <sys/devfsext.h>
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#endif
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#include <machine/i4b_debug.h>
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#include <machine/i4b_ioctl.h>
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#include <i4b/include/i4b_global.h>
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#include <i4b/include/i4b_l3l4.h>
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#include <i4b/layer2/i4b_l2.h>
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static int openflag = 0;
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static d_open_t i4bctlopen;
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static d_close_t i4bctlclose;
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static d_ioctl_t i4bctlioctl;
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static d_poll_t i4bctlpoll;
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#define CDEV_MAJOR 55
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static struct cdevsw i4bctl_cdevsw = {
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/* open */ i4bctlopen,
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/* close */ i4bctlclose,
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/* read */ noread,
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/* write */ nowrite,
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/* ioctl */ i4bctlioctl,
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/* poll */ i4bctlpoll,
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/* mmap */ nommap,
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/* strategy */ nostrategy,
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/* name */ "i4bctl",
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/* maj */ CDEV_MAJOR,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ 0,
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};
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static void i4bctlattach(void *);
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PSEUDO_SET(i4bctlattach, i4b_i4bctldrv);
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/*---------------------------------------------------------------------------*
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* initialization at kernel load time
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*---------------------------------------------------------------------------*/
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static void
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i4bctlinit(void *unused)
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{
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cdevsw_add(&i4bctl_cdevsw);
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}
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SYSINIT(i4bctldev, SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, &i4bctlinit, NULL);
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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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i4bctlattach(void *dummy)
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{
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printf("i4bctl: ISDN system control port attached\n");
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make_dev(&i4bctl_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "i4bctl");
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}
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/*---------------------------------------------------------------------------*
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* i4bctlopen - device driver open routine
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*---------------------------------------------------------------------------*/
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static int
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i4bctlopen(dev_t dev, int flag, int fmt, struct thread *td)
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{
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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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openflag = 1;
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return (0);
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}
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/*---------------------------------------------------------------------------*
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* i4bctlclose - device driver close routine
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*---------------------------------------------------------------------------*/
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static int
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i4bctlclose(dev_t dev, int flag, int fmt, struct thread *td)
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{
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openflag = 0;
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return (0);
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}
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/*---------------------------------------------------------------------------*
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* i4bctlioctl - device driver ioctl routine
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*---------------------------------------------------------------------------*/
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static int
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i4bctlioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td)
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{
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#if DO_I4B_DEBUG
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ctl_debug_t *cdbg;
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int error = 0;
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#endif
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#if !DO_I4B_DEBUG
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return(ENODEV);
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#else
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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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case I4B_CTL_GET_DEBUG:
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cdbg = (ctl_debug_t *)data;
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cdbg->l1 = i4b_l1_debug;
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cdbg->l2 = i4b_l2_debug;
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cdbg->l3 = i4b_l3_debug;
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cdbg->l4 = i4b_l4_debug;
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break;
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case I4B_CTL_SET_DEBUG:
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cdbg = (ctl_debug_t *)data;
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i4b_l1_debug = cdbg->l1;
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i4b_l2_debug = cdbg->l2;
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i4b_l3_debug = cdbg->l3;
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i4b_l4_debug = cdbg->l4;
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break;
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case I4B_CTL_GET_CHIPSTAT:
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{
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struct chipstat *cst;
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cst = (struct chipstat *)data;
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(*ctrl_desc[cst->driver_unit].N_MGMT_COMMAND)(cst->driver_unit, CMR_GCST, cst);
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break;
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}
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case I4B_CTL_CLR_CHIPSTAT:
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{
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struct chipstat *cst;
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cst = (struct chipstat *)data;
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(*ctrl_desc[cst->driver_unit].N_MGMT_COMMAND)(cst->driver_unit, CMR_CCST, cst);
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break;
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}
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case I4B_CTL_GET_LAPDSTAT:
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{
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l2stat_t *l2s;
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l2_softc_t *sc;
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l2s = (l2stat_t *)data;
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if( l2s->unit < 0 || l2s->unit > MAXL1UNITS)
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{
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error = EINVAL;
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break;
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}
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sc = &l2_softc[l2s->unit];
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bcopy(&sc->stat, &l2s->lapdstat, sizeof(lapdstat_t));
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break;
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}
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case I4B_CTL_CLR_LAPDSTAT:
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{
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int *up;
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l2_softc_t *sc;
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up = (int *)data;
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if( *up < 0 || *up > MAXL1UNITS)
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{
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error = EINVAL;
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break;
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}
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sc = &l2_softc[*up];
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bzero(&sc->stat, sizeof(lapdstat_t));
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break;
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}
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default:
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error = ENOTTY;
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break;
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}
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return(error);
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#endif /* DO_I4B_DEBUG */
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}
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/*---------------------------------------------------------------------------*
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* i4bctlpoll - device driver poll routine
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*---------------------------------------------------------------------------*/
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static int
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i4bctlpoll (dev_t dev, int events, struct thread *td)
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{
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return (ENODEV);
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}
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#endif /* NI4BCTL > 0 */
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