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NetBSD/sys/netisdn/i4b_ctl.c
hubertf 142c2a33ba Remove duplicate #includes, patch contributed in private mail 
by Slava Semushin <slava.semushin@gmail.com>.

To verify that no nasty side effects of duplicate includes (or their
removal) have an effect here, I've compiled an i386/ALL kernel with
and without the patch, and the only difference in the resulting .o
files was in shifted line numbers in some assert() calls.
The comparison of the .o files was based on the output of "objdump -D".

Thanks to martin@ for the input on testing.
2007-01-24 13:08:11 +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 1.17 2007/01/24 13:08:15 hubertf Exp $
*
* $FreeBSD$
*
* last edit-date: [Fri Jan 5 11:33:46 2001]
*
*---------------------------------------------------------------------------*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: i4b_ctl.c,v 1.17 2007/01/24 13:08:15 hubertf Exp $");
#include "isdnctl.h"
#if NISDNCTL > 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__
#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 <netisdn/i4b_debug.h>
#include <netisdn/i4b_ioctl.h>
#endif
#include <netisdn/i4b_global.h>
#include <netisdn/i4b_mbuf.h>
#include <netisdn/i4b_l3l4.h>
#include <netisdn/i4b_l2.h>
#include <netisdn/i4b_l1l2.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,
/* bmaj */ -1
};
#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 isdnctlattach __P((void));
int isdnctlopen __P((dev_t dev, int flag, int fmt, struct lwp *l));
int isdnctlclose __P((dev_t dev, int flag, int fmt, struct lwp *l));
int isdnctlioctl __P((dev_t dev, u_long cmd, caddr_t data, int flag, struct lwp *l));
#endif /* !FreeBSD */
#ifdef __NetBSD__
const struct cdevsw isdnctl_cdevsw = {
isdnctlopen, isdnctlclose, noread, nowrite, isdnctlioctl,
nostop, notty, nopoll, nommap, nokqfilter, D_OTHER
};
#endif /* __NetBSD__ */
#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__
isdnctlattach(void *dummy)
#else
isdnctlattach()
#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
isdnctlopen(dev_t dev, int flag, int fmt,
struct lwp *l)
{
if(minor(dev))
return (ENXIO);
if(openflag)
return (EBUSY);
openflag = 1;
return (0);
}
/*---------------------------------------------------------------------------*
* i4bctlclose - device driver close routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
isdnctlclose(dev_t dev, int flag, int fmt,
struct lwp *l)
{
openflag = 0;
return (0);
}
/*---------------------------------------------------------------------------*
* i4bctlioctl - device driver ioctl routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
isdnctlioctl(dev_t dev, u_long cmd, caddr_t data, int flag,
struct lwp *l)
{
#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;
l2_softc_t * scl2;
cst = (struct chipstat *)data;
scl2 = (l2_softc_t*)isdn_find_softc_by_isdnif(cst->driver_unit);
scl2->driver->mph_command_req(scl2->l1_token, CMR_GCST, cst);
break;
}
case I4B_CTL_CLR_CHIPSTAT:
{
struct chipstat *cst;
l2_softc_t * scl2;
cst = (struct chipstat *)data;
scl2 = (l2_softc_t*)isdn_find_softc_by_isdnif(cst->driver_unit);
scl2->driver->mph_command_req(scl2->l1_token, CMR_CCST, cst);
break;
}
case I4B_CTL_GET_LAPDSTAT:
{
l2stat_t *l2s;
l2_softc_t *sc;
l2s = (l2stat_t *)data;
sc = (l2_softc_t*)isdn_find_softc_by_isdnif(l2s->unit);
if (sc == NULL) {
error = EINVAL;
break;
}
memcpy(&l2s->lapdstat, &sc->stat, sizeof(lapdstat_t));
break;
}
case I4B_CTL_CLR_LAPDSTAT:
{
int *up;
l2_softc_t *sc;
up = (int *)data;
sc = (l2_softc_t*)isdn_find_softc_by_isdnif(*up);
if (sc == NULL) {
error = EINVAL;
break;
}
memset(&sc->stat, 0, 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
isdnctlpoll (dev_t dev, int events, struct lwp *l)
{
return (ENODEV);
}
#endif
#endif /* NISDNCTL > 0 */
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