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f71c01cc52
freebsd-dev/sys/i4b/driver/i4b_isppp.c
Peter Wemm f71c01cc52 Borrow phk's axe and apply the next stage of config(8)'s evolution. 
Use Warner Losh's "hint" driver to decode ascii strings to fill the
resource table at boot time.

config(8) no longer generates an ioconf.c table - ie: the configuration
no longer has to be compiled into the kernel.  You can reconfigure your
isa devices with the likes of this at loader(8) time:
  set hint.ed.0.port=0x320

userconfig will be rewritten to use this style interface one day and will
move to /boot/userconfig.4th or something like that.

It is still possible to statically compile in a set of hints into a kernel
if you do not wish to use loader(8).  See the "hints" directive in GENERIC
as an example.

All device wiring has been moved out of config(8).  There is a set of
helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98)
that extract the 'at isa? port foo irq bar' from the old files and produces
a hints file.  If you install this file as /boot/device.hints (and update
/boot/defaults/loader.conf - You can do a build/install in sys/boot) then
loader will load it automatically for you.  You can also compile in the
hints directly with:  hints "device.hints"  as well.

There are a few things that I'm not too happy with yet.  Under this scheme,
things like LINT would no longer be useful as "documentation" of settings.
I have renamed this file to 'NOTES' and stored the example hints strings
in it.  However... this is not something that config(8) understands, so
there is a script that extracts the build-specific data from the
documentation file (NOTES) to produce a LINT that can be config'ed and
built.  A stack of man4 pages will need updating. :-/

Also, since there is no longer a difference between 'device' and
'pseudo-device' I collapsed the two together, and the resulting 'device'
takes a 'number of units' for devices that still have it statically
allocated.  eg:  'device fe 4' will compile the fe driver with NFE set
to 4.  You can then set hints for 4 units (0 - 3).  Also note that
'device fe0' will be interpreted as "zero units of 'fe'" which would be
bad, so there is a config warning for this.  This is only needed for
old drivers that still have static limits on numbers of units.
All the statically limited drivers that I could find were marked.

Please exercise EXTREME CAUTION when transitioning!

Moral support by: phk, msmith, dfr, asmodai, imp, and others
2000-06-13 22:28:50 +00:00

745 lines
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/*
* Copyright (c) 1997 Joerg Wunsch. All rights reserved.
*
* Copyright (c) 1997, 1999 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_isppp.c - isdn4bsd kernel SyncPPP driver
* --------------------------------------------
*
* Uses Serge Vakulenko's sppp backend (originally contributed with
* the "cx" driver for Cronyx's HDLC-in-hardware device). This driver
* is only the glue between sppp and i4b.
*
* $Id: i4b_isppp.c,v 1.35 1999/12/13 21:25:24 hm Exp $
*
* $FreeBSD$
*
* last edit-date: [Mon Dec 13 21:39:06 1999]
*
*---------------------------------------------------------------------------*/
#include "i4bisppp.h"
#if NI4BISPPP == 0
# error "You need to define `pseudo-device sppp <N>' with options ISPPP"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/ioccom.h>
#include <sys/sockio.h>
#include <sys/kernel.h>
#include <sys/protosw.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/netisr.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <net/slcompress.h>
#if defined(__FreeBSD__) || defined(__OpenBSD__)
#include <net/if_sppp.h>
#else
#include <i4b/sppp/if_sppp.h>
#endif
#if defined(__FreeBSD_version) && __FreeBSD_version >= 400008
#include "bpf.h"
#else
#include "bpfilter.h"
#endif
#if NBPFILTER > 0 || NBPF > 0
#include <sys/time.h>
#include <net/bpf.h>
#endif
#ifdef __FreeBSD__
#include <machine/i4b_ioctl.h>
#include <machine/i4b_cause.h>
#include <machine/i4b_debug.h>
#else
#include <i4b/i4b_ioctl.h>
#include <i4b/i4b_cause.h>
#include <i4b/i4b_debug.h>
#endif
#include <i4b/include/i4b_global.h>
#include <i4b/include/i4b_mbuf.h>
#include <i4b/include/i4b_l3l4.h>
#include <i4b/layer4/i4b_l4.h>
#ifdef __FreeBSD__
#define ISPPP_FMT "isp%d: "
#define ISPPP_ARG(sc) ((sc)->sc_if.if_unit)
#define PDEVSTATIC static
#define IFP2UNIT(ifp) (ifp)->if_unit
# if __FreeBSD_version >= 300001
# define CALLOUT_INIT(chan) callout_handle_init(chan)
# define TIMEOUT(fun, arg, chan, tick) chan = timeout(fun, arg, tick)
# define UNTIMEOUT(fun, arg, chan) untimeout(fun, arg, chan)
# define IOCTL_CMD_T u_long
# else
# define CALLOUT_INIT(chan) do {} while(0)
# define TIMEOUT(fun, arg, chan, tick) timeout(fun, arg, tick)
# define UNTIMEOUT(fun, arg, chan) untimeout(fun, arg)
# define IOCTL_CMD_T int
# endif
#elif defined __NetBSD__ || defined __OpenBSD__
#define ISPPP_FMT "%s: "
#define ISPPP_ARG(sc) ((sc)->sc_if.if_xname)
#define PDEVSTATIC /* not static */
#define IOCTL_CMD_T u_long
#define IFP2UNIT(ifp) ((struct i4bisppp_softc *)ifp->if_softc)->sc_unit
#else
# error "What system are you using?"
#endif
#ifdef __FreeBSD__
PDEVSTATIC void i4bispppattach(void *);
PSEUDO_SET(i4bispppattach, i4b_isppp);
#else
PDEVSTATIC void i4bispppattach __P((void));
#endif
#define I4BISPPPACCT 1 /* enable accounting messages */
#define I4BISPPPACCTINTVL 2 /* accounting msg interval in secs */
#define I4BISPPPDISCDEBUG 1
#define PPP_HDRLEN 4 /* 4 octetts PPP header length */
struct i4bisppp_softc {
/*
* struct sppp starts with a struct ifnet, but we gotta allocate
* more space for it. NB: do not relocate this union, it must
* be first in isppp_softc. The tls and tlf hooks below want to
* convert a ``struct sppp *'' into a ``struct isppp_softc *''.
*/
union {
struct ifnet scu_if;
struct sppp scu_sp;
} sc_if_un;
#define sc_if sc_if_un.scu_if
int sc_state; /* state of the interface */
#ifndef __FreeBSD__
int sc_unit; /* unit number for Net/OpenBSD */
#endif
call_desc_t *sc_cdp; /* ptr to call descriptor */
#ifdef I4BISPPPACCT
int sc_iinb; /* isdn driver # of inbytes */
int sc_ioutb; /* isdn driver # of outbytes */
int sc_inb; /* # of bytes rx'd */
int sc_outb; /* # of bytes tx'd */
int sc_linb; /* last # of bytes rx'd */
int sc_loutb; /* last # of bytes tx'd */
int sc_fn; /* flag, first null acct */
#endif
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
struct callout_handle sc_ch;
#endif
} i4bisppp_softc[NI4BISPPP];
static void i4bisppp_init_linktab(int unit);
static int i4bisppp_ioctl(struct ifnet *ifp, IOCTL_CMD_T cmd, caddr_t data);
#if 0
static void i4bisppp_send(struct ifnet *ifp);
#endif
static void i4bisppp_start(struct ifnet *ifp);
#if 0 /* never used ??? */
static void i4bisppp_timeout(void *cookie);
#endif
static void i4bisppp_tls(struct sppp *sp);
static void i4bisppp_tlf(struct sppp *sp);
static void i4bisppp_state_changed(struct sppp *sp, int new_state);
static void i4bisppp_negotiation_complete(struct sppp *sp);
static void i4bisppp_watchdog(struct ifnet *ifp);
/* initialized by L4 */
static drvr_link_t i4bisppp_drvr_linktab[NI4BISPPP];
static isdn_link_t *isdn_linktab[NI4BISPPP];
enum i4bisppp_states {
ST_IDLE, /* initialized, ready, idle */
ST_DIALING, /* dialling out to remote */
ST_CONNECTED, /* connected to remote */
};
/*===========================================================================*
* DEVICE DRIVER ROUTINES
*===========================================================================*/
/*---------------------------------------------------------------------------*
* interface attach routine at kernel boot time
*---------------------------------------------------------------------------*/
PDEVSTATIC void
#ifdef __FreeBSD__
i4bispppattach(void *dummy)
#else
i4bispppattach(void)
#endif
{
struct i4bisppp_softc *sc = i4bisppp_softc;
int i;
#ifndef HACK_NO_PSEUDO_ATTACH_MSG
#ifdef SPPP_VJ
printf("i4bisppp: %d ISDN SyncPPP device(s) attached (VJ header compression)\n", NI4BISPPP);
#else
printf("i4bisppp: %d ISDN SyncPPP device(s) attached\n", NI4BISPPP);
#endif
#endif
for(i = 0; i < NI4BISPPP; sc++, i++) {
i4bisppp_init_linktab(i);
sc->sc_if.if_softc = sc;
#ifdef __FreeBSD__
sc->sc_if.if_name = "isp";
#if defined(__FreeBSD_version) && __FreeBSD_version < 300001
sc->sc_if.if_next = NULL;
#endif
sc->sc_if.if_unit = i;
#else
sprintf(sc->sc_if.if_xname, "isp%d", i);
sc->sc_unit = i;
#endif
sc->sc_if.if_mtu = PP_MTU;
sc->sc_if.if_flags = IFF_SIMPLEX | IFF_POINTOPOINT;
sc->sc_if.if_type = IFT_ISDNBASIC;
sc->sc_state = ST_IDLE;
sc->sc_if.if_ioctl = i4bisppp_ioctl;
/* actually initialized by sppp_attach() */
/* sc->sc_if.if_output = sppp_output; */
sc->sc_if.if_start = i4bisppp_start;
sc->sc_if.if_hdrlen = 0;
sc->sc_if.if_addrlen = 0;
sc->sc_if.if_snd.ifq_maxlen = IFQ_MAXLEN;
sc->sc_if.if_ipackets = 0;
sc->sc_if.if_ierrors = 0;
sc->sc_if.if_opackets = 0;
sc->sc_if.if_oerrors = 0;
sc->sc_if.if_collisions = 0;
sc->sc_if.if_ibytes = 0;
sc->sc_if.if_obytes = 0;
sc->sc_if.if_imcasts = 0;
sc->sc_if.if_omcasts = 0;
sc->sc_if.if_iqdrops = 0;
sc->sc_if.if_noproto = 0;
#if I4BISPPPACCT
sc->sc_if.if_timer = 0;
sc->sc_if.if_watchdog = i4bisppp_watchdog;
sc->sc_iinb = 0;
sc->sc_ioutb = 0;
sc->sc_inb = 0;
sc->sc_outb = 0;
sc->sc_linb = 0;
sc->sc_loutb = 0;
sc->sc_fn = 1;
#endif
sc->sc_if_un.scu_sp.pp_tls = i4bisppp_tls;
sc->sc_if_un.scu_sp.pp_tlf = i4bisppp_tlf;
sc->sc_if_un.scu_sp.pp_con = i4bisppp_negotiation_complete;
sc->sc_if_un.scu_sp.pp_chg = i4bisppp_state_changed;
sppp_attach(&sc->sc_if);
if_attach(&sc->sc_if);
#if NBPFILTER > 0 || NBPF > 0
#ifdef __FreeBSD__
bpfattach(&sc->sc_if, DLT_PPP, PPP_HDRLEN);
CALLOUT_INIT(&sc->sc_ch);
#endif /* __FreeBSD__ */
#ifdef __NetBSD__
bpfattach(&sc->sc_if.if_bpf, &sc->sc_if, DLT_PPP, sizeof(u_int));
#endif
#endif
}
}
/*---------------------------------------------------------------------------*
* process ioctl
*---------------------------------------------------------------------------*/
static int
i4bisppp_ioctl(struct ifnet *ifp, IOCTL_CMD_T cmd, caddr_t data)
{
struct i4bisppp_softc *sc = ifp->if_softc;
#if 0
struct sppp *sp = (struct sppp *)sc;
struct ifaddr *ifa = (struct ifaddr *) data;
struct ifreq *ifr = (struct ifreq *) data;
#endif
int error;
error = sppp_ioctl(&sc->sc_if, cmd, data);
if (error)
return error;
switch(cmd) {
case SIOCSIFFLAGS:
#if 0 /* never used ??? */
x = splimp();
if ((ifp->if_flags & IFF_UP) == 0)
UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch);
splx(x);
#endif
break;
}
return 0;
}
/*---------------------------------------------------------------------------*
* start output to ISDN B-channel
*---------------------------------------------------------------------------*/
static void
i4bisppp_start(struct ifnet *ifp)
{
struct i4bisppp_softc *sc = ifp->if_softc;
struct mbuf *m;
/* int s; */
int unit = IFP2UNIT(ifp);
if (sppp_isempty(ifp))
return;
if(sc->sc_state != ST_CONNECTED)
return;
/*
* s = splimp();
* ifp->if_flags |= IFF_OACTIVE; // - need to clear this somewhere
* splx(s);
*/
while ((m = sppp_dequeue(&sc->sc_if)) != NULL)
{
#if NBPFILTER > 0 || NBPF > 0
#ifdef __FreeBSD__
if (ifp->if_bpf)
bpf_mtap(ifp, m);
#endif /* __FreeBSD__ */
#ifdef __NetBSD__
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m);
#endif
#endif /* NBPFILTER > 0 || NBPF > 0 */
microtime(&ifp->if_lastchange);
if(IF_QFULL(isdn_linktab[unit]->tx_queue))
{
DBGL4(L4_ISPDBG, "i4bisppp_start", ("isp%d, tx queue full!\n", unit));
m_freem(m);
}
else
{
IF_ENQUEUE(isdn_linktab[unit]->tx_queue, m);
sc->sc_if.if_obytes += m->m_pkthdr.len;
sc->sc_outb += m->m_pkthdr.len;
sc->sc_if.if_opackets++;
}
}
isdn_linktab[unit]->bch_tx_start(isdn_linktab[unit]->unit,
isdn_linktab[unit]->channel);
}
#ifdef I4BISPPPACCT
/*---------------------------------------------------------------------------*
* watchdog routine
*---------------------------------------------------------------------------*/
static void
i4bisppp_watchdog(struct ifnet *ifp)
{
struct i4bisppp_softc *sc = ifp->if_softc;
int unit = IFP2UNIT(ifp);
bchan_statistics_t bs;
(*isdn_linktab[unit]->bch_stat)
(isdn_linktab[unit]->unit, isdn_linktab[unit]->channel, &bs);
sc->sc_ioutb += bs.outbytes;
sc->sc_iinb += bs.inbytes;
if((sc->sc_iinb != sc->sc_linb) || (sc->sc_ioutb != sc->sc_loutb) || sc->sc_fn)
{
int ri = (sc->sc_iinb - sc->sc_linb)/I4BISPPPACCTINTVL;
int ro = (sc->sc_ioutb - sc->sc_loutb)/I4BISPPPACCTINTVL;
if((sc->sc_iinb == sc->sc_linb) && (sc->sc_ioutb == sc->sc_loutb))
sc->sc_fn = 0;
else
sc->sc_fn = 1;
sc->sc_linb = sc->sc_iinb;
sc->sc_loutb = sc->sc_ioutb;
i4b_l4_accounting(BDRV_ISPPP, unit, ACCT_DURING,
sc->sc_ioutb, sc->sc_iinb, ro, ri, sc->sc_outb, sc->sc_inb);
}
sc->sc_if.if_timer = I4BISPPPACCTINTVL;
#if 0 /* old stuff, keep it around */
printf(ISPPP_FMT "transmit timeout\n", ISPPP_ARG(sc));
i4bisppp_start(ifp);
#endif
}
#endif /* I4BISPPPACCT */
/*
*===========================================================================*
* SyncPPP layer interface routines
*===========================================================================*
*/
#if 0 /* never used ??? */
/*---------------------------------------------------------------------------*
* just an alias for i4bisppp_tls, but of type timeout_t
*---------------------------------------------------------------------------*/
static void
i4bisppp_timeout(void *cookie)
{
i4bisppp_tls((struct sppp *)cookie);
}
#endif
/*---------------------------------------------------------------------------*
* PPP this-layer-started action
*---------------------------------------------------------------------------*
*/
static void
i4bisppp_tls(struct sppp *sp)
{
struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp;
struct ifnet *ifp = (struct ifnet *)sp;
if(sc->sc_state == ST_CONNECTED)
return;
i4b_l4_dialout(BDRV_ISPPP, IFP2UNIT(ifp));
}
/*---------------------------------------------------------------------------*
* PPP this-layer-finished action
*---------------------------------------------------------------------------*
*/
static void
i4bisppp_tlf(struct sppp *sp)
{
struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp;
/* call_desc_t *cd = sc->sc_cdp; */
struct ifnet *ifp = (struct ifnet *)sp;
if(sc->sc_state != ST_CONNECTED)
return;
#if 0 /* never used ??? */
UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch);
#endif
i4b_l4_drvrdisc(BDRV_ISPPP, IFP2UNIT(ifp));
}
/*---------------------------------------------------------------------------*
* PPP interface phase change
*---------------------------------------------------------------------------*
*/
static void
i4bisppp_state_changed(struct sppp *sp, int new_state)
{
struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp;
i4b_l4_ifstate_changed(sc->sc_cdp, new_state);
}
/*---------------------------------------------------------------------------*
* PPP control protocol negotiation complete (run ip-up script now)
*---------------------------------------------------------------------------*
*/
static void
i4bisppp_negotiation_complete(struct sppp *sp)
{
struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp;
i4b_l4_negcomplete(sc->sc_cdp);
}
/*===========================================================================*
* ISDN INTERFACE ROUTINES
*===========================================================================*/
/*---------------------------------------------------------------------------*
* this routine is called from L4 handler at connect time
*---------------------------------------------------------------------------*/
static void
i4bisppp_connect(int unit, void *cdp)
{
struct i4bisppp_softc *sc = &i4bisppp_softc[unit];
struct sppp *sp = &sc->sc_if_un.scu_sp;
int s = splimp();
sc->sc_cdp = (call_desc_t *)cdp;
sc->sc_state = ST_CONNECTED;
#if I4BISPPPACCT
sc->sc_iinb = 0;
sc->sc_ioutb = 0;
sc->sc_inb = 0;
sc->sc_outb = 0;
sc->sc_linb = 0;
sc->sc_loutb = 0;
sc->sc_if.if_timer = I4BISPPPACCTINTVL;
#endif
#if 0 /* never used ??? */
UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch);
#endif
sp->pp_up(sp); /* tell PPP we are ready */
splx(s);
}
/*---------------------------------------------------------------------------*
* this routine is called from L4 handler at disconnect time
*---------------------------------------------------------------------------*/
static void
i4bisppp_disconnect(int unit, void *cdp)
{
call_desc_t *cd = (call_desc_t *)cdp;
struct i4bisppp_softc *sc = &i4bisppp_softc[unit];
struct sppp *sp = &sc->sc_if_un.scu_sp;
int s = splimp();
/* new stuff to check that the active channel is being closed */
if (cd != sc->sc_cdp)
{
DBGL4(L4_ISPDBG, "i4bisppp_disconnect", ("isp%d, channel%d not active!\n", unit, cd->channelid));
splx(s);
return;
}
#if I4BISPPPACCT
sc->sc_if.if_timer = 0;
#endif
i4b_l4_accounting(BDRV_ISPPP, unit, ACCT_FINAL,
sc->sc_ioutb, sc->sc_iinb, 0, 0, sc->sc_outb, sc->sc_inb);
if (sc->sc_state == ST_CONNECTED)
{
#if 0 /* never used ??? */
UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch);
#endif
sc->sc_cdp = (call_desc_t *)0;
/* do thhis here because pp_down calls i4bisppp_tlf */
sc->sc_state = ST_IDLE;
sp->pp_down(sp); /* tell PPP we have hung up */
}
splx(s);
}
/*---------------------------------------------------------------------------*
* this routine is used to give a feedback from userland demon
* in case of dial problems
*---------------------------------------------------------------------------*/
static void
i4bisppp_dialresponse(int unit, int status, cause_t cause)
{
struct i4bisppp_softc *sc = &i4bisppp_softc[unit];
DBGL4(L4_ISPDBG, "i4bisppp_dialresponse", ("isp%d: status=%d, cause=%d\n", unit, status, cause));
if(status != DSTAT_NONE)
{
struct mbuf *m;
DBGL4(L4_ISPDBG, "i4bisppp_dialresponse", ("isp%d: clearing queues\n", unit));
if(!(sppp_isempty(&sc->sc_if)))
{
while((m = sppp_dequeue(&sc->sc_if)) != NULL)
m_freem(m);
}
}
}
/*---------------------------------------------------------------------------*
* interface up/down
*---------------------------------------------------------------------------*/
static void
i4bisppp_updown(int unit, int updown)
{
/* could probably do something useful here */
}
/*---------------------------------------------------------------------------*
* this routine is called from the HSCX interrupt handler
* when a new frame (mbuf) has been received and was put on
* the rx queue.
*---------------------------------------------------------------------------*/
static void
i4bisppp_rx_data_rdy(int unit)
{
struct i4bisppp_softc *sc = &i4bisppp_softc[unit];
struct mbuf *m;
int s;
if((m = *isdn_linktab[unit]->rx_mbuf) == NULL)
return;
m->m_pkthdr.rcvif = &sc->sc_if;
m->m_pkthdr.len = m->m_len;
microtime(&sc->sc_if.if_lastchange);
sc->sc_if.if_ipackets++;
sc->sc_if.if_ibytes += m->m_pkthdr.len;
#if I4BISPPPACCT
sc->sc_inb += m->m_pkthdr.len;
#endif
#ifdef I4BISPPPDEBUG
printf("i4bisppp_rx_data_ready: received packet!\n");
#endif
#if NBPFILTER > 0 || NBPF > 0
#ifdef __FreeBSD__
if(sc->sc_if.if_bpf)
bpf_mtap(&sc->sc_if, m);
#endif /* __FreeBSD__ */
#ifdef __NetBSD__
if(sc->sc_if.if_bpf)
bpf_mtap(sc->sc_if.if_bpf, m);
#endif
#endif /* NBPFILTER > 0 || NBPF > 0 */
s = splimp();
sppp_input(&sc->sc_if, m);
splx(s);
}
/*---------------------------------------------------------------------------*
* this routine is called from the HSCX interrupt handler
* when the last frame has been sent out and there is no
* further frame (mbuf) in the tx queue.
*---------------------------------------------------------------------------*/
static void
i4bisppp_tx_queue_empty(int unit)
{
i4bisppp_start(&i4bisppp_softc[unit].sc_if);
}
/*---------------------------------------------------------------------------*
* this routine is called from the HSCX interrupt handler
* each time a packet is received or transmitted. It should
* be used to implement an activity timeout mechanism.
*---------------------------------------------------------------------------*/
static void
i4bisppp_activity(int unit, int rxtx)
{
i4bisppp_softc[unit].sc_cdp->last_active_time = SECOND;
}
/*---------------------------------------------------------------------------*
* return this drivers linktab address
*---------------------------------------------------------------------------*/
drvr_link_t *
i4bisppp_ret_linktab(int unit)
{
return(&i4bisppp_drvr_linktab[unit]);
}
/*---------------------------------------------------------------------------*
* setup the isdn_linktab for this driver
*---------------------------------------------------------------------------*/
void
i4bisppp_set_linktab(int unit, isdn_link_t *ilt)
{
isdn_linktab[unit] = ilt;
}
/*---------------------------------------------------------------------------*
* initialize this drivers linktab
*---------------------------------------------------------------------------*/
static void
i4bisppp_init_linktab(int unit)
{
i4bisppp_drvr_linktab[unit].unit = unit;
i4bisppp_drvr_linktab[unit].bch_rx_data_ready = i4bisppp_rx_data_rdy;
i4bisppp_drvr_linktab[unit].bch_tx_queue_empty = i4bisppp_tx_queue_empty;
i4bisppp_drvr_linktab[unit].bch_activity = i4bisppp_activity;
i4bisppp_drvr_linktab[unit].line_connected = i4bisppp_connect;
i4bisppp_drvr_linktab[unit].line_disconnected = i4bisppp_disconnect;
i4bisppp_drvr_linktab[unit].dial_response = i4bisppp_dialresponse;
i4bisppp_drvr_linktab[unit].updown_ind = i4bisppp_updown;
}
/*===========================================================================*/
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