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freebsd/sys/i4b/driver/i4b_ctl.c
Poul-Henning Kamp f83880518b Send the remains (such as I have located) of "block major numbers" to 
the bit-bucket.
2001-03-26 12:41:29 +00:00

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/*
* Copyright (c) 1997, 2000 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 1.37 2000/05/31 08:04:43 hm Exp $
*
* $FreeBSD$
*
* last edit-date: [Wed May 31 09:59:01 2000]
*
*---------------------------------------------------------------------------*/
#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>
#else
#include <sys/ioctl.h>
#endif
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/socket.h>
#include <net/if.h>
#ifdef __FreeBSD__
#if defined(__FreeBSD__) && __FreeBSD__ == 3
#include "opt_devfs.h"
#endif
#ifdef DEVFS
#include <sys/devfsext.h>
#endif
#endif /* __FreeBSD__ */
#ifdef __FreeBSD__
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#elif defined(__bsdi__)
#include <i4b/i4b_debug.h>
#include <i4b/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_l3l4.h>
#include <i4b/layer2/i4b_l2.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;
#ifdef OS_USES_POLL
static d_poll_t i4bctlpoll;
#define POLLFIELD i4bctlpoll
#else
#define POLLFIELD noselect
#endif
#define CDEV_MAJOR 55
#if defined(__FreeBSD__) && __FreeBSD__ >= 4
static struct cdevsw i4bctl_cdevsw = {
/* open */ i4bctlopen,
/* close */ i4bctlclose,
/* read */ noread,
/* write */ nowrite,
/* ioctl */ i4bctlioctl,
/* poll */ POLLFIELD,
/* mmap */ nommap,
/* strategy */ nostrategy,
/* name */ "i4bctl",
/* maj */ CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ 0,
};
#else
static struct cdevsw i4bctl_cdevsw =
{ i4bctlopen, i4bctlclose, noread, nowrite,
i4bctlioctl, nostop, nullreset, nodevtotty,
POLLFIELD, nommap, NULL, "i4bctl", NULL, -1 };
#endif
static void i4bctlattach(void *);
PSEUDO_SET(i4bctlattach, i4b_i4bctldrv);
#define PDEVSTATIC static
#endif /* __FreeBSD__ */
#if defined(__FreeBSD__) && __FreeBSD__ == 3
#ifdef DEVFS
static void *devfs_token;
#endif
#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));
#ifdef __bsdi__
int i4bctlioctl __P((dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p));
#else
int i4bctlioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct proc *p));
#endif
#endif /* !FreeBSD */
#if BSD > 199306 && defined(__FreeBSD__)
/*---------------------------------------------------------------------------*
* initialization at kernel load time
*---------------------------------------------------------------------------*/
static void
i4bctlinit(void *unused)
{
#if defined(__FreeBSD__) && __FreeBSD__ >= 4
cdevsw_add(&i4bctl_cdevsw);
#else
dev_t dev = makedev(CDEV_MAJOR, 0);
cdevsw_add(&dev, &i4bctl_cdevsw, NULL);
#endif
}
SYSINIT(i4bctldev, SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, &i4bctlinit, NULL);
#endif /* BSD > 199306 && defined(__FreeBSD__) */
#ifdef __bsdi__
int i4bctlmatch(struct device *parent, struct cfdata *cf, void *aux);
void dummy_i4bctlattach(struct device*, struct device *, void *);
#define CDEV_MAJOR 64
static struct cfdriver i4bctlcd =
{ NULL, "i4bctl", i4bctlmatch, dummy_i4bctlattach, DV_DULL,
sizeof(struct cfdriver) };
struct devsw i4bctlsw =
{ &i4bctlcd,
i4bctlopen, i4bctlclose, noread, nowrite,
i4bctlioctl, seltrue, nommap, nostrat,
nodump, nopsize, 0, nostop
};
int
i4bctlmatch(struct device *parent, struct cfdata *cf, void *aux)
{
printf("i4bctlmatch: aux=0x%x\n", aux);
return 1;
}
void
dummy_i4bctlattach(struct device *parent, struct device *self, void *aux)
{
printf("dummy_i4bctlattach: aux=0x%x\n", aux);
}
#endif /* __bsdi__ */
/*---------------------------------------------------------------------------*
* 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
#if defined(__FreeBSD__)
#if __FreeBSD__ == 3
#ifdef DEVFS
devfs_token = devfs_add_devswf(&i4bctl_cdevsw, 0, DV_CHR,
UID_ROOT, GID_WHEEL, 0600,
"i4bctl");
#endif
#else
make_dev(&i4bctl_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "i4bctl");
#endif
#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)
#elif defined(__bsdi__)
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
{
#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
}
#if defined(__FreeBSD__) && defined(OS_USES_POLL)
/*---------------------------------------------------------------------------*
* i4bctlpoll - device driver poll routine
*---------------------------------------------------------------------------*/
static int
i4bctlpoll (dev_t dev, int events, struct proc *p)
{
return (ENODEV);
}
#endif
#endif /* NI4BCTL > 0 */
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