Updated cx driver commit part 1: bring in the new kernel driver.

This is the vastly updated cx drvier from Roman Kurakin <rik@cronyx.ru>
who has been patiently waiting for this update for sometime.

The driver is mostly a rewrite from the version we have in the tree.
While some similarities remain, losing the little history that the old
driver has is not a big loss, and the re@ felt it was easier this way (less
error prone).

The userland parts of this update will be committed shortly.

The driver is not connected to the build yet.  I want to make sure I
don't break any platform at any time, so I want to test that with
these files in the tree before I continue (on the off chance I'm
forgetting a file).

I changed the DEBUG macro to CX_DEBUG from the code that was submitted
(to not break when we go to building with opt_global.h after the
release), as well adding $FreeBSD$.

Submitted by: Roman Kurakin
Approved by: re@ <scottl>

1 files changed, 39 insertions, 0 deletions

diff --git a/sys/modules/cx/Makefile b/sys/modules/cx/Makefile
new file mode 100644
index 0000000..ddb4dcc
--- /dev/null
+++ b/sys/modules/cx/Makefile
@@ -0,0 +1,39 @@
+# Cronyx Id: sys.modules.cx.Makefile,v 1.1.2.2 2003/01/21 15:15:49 rik Exp $
+# $FreeBSD$
+
+.PATH:  ${.CURDIR}/../../dev/cx
+KMOD=   if_cx
+SRCS=   if_cx.c cxddk.c csigma.c opt_netgraph.h opt_ng_cronyx.h bpf.h \
+	sppp.h device_if.h bus_if.h isa_if.h
+NOMAN=
+
+NBPF?=		0
+PROTOS?=	-DINET
+NG_CRONYX?=	0
+NETGRAPH=	${NG_CRONYX}
+
+
+CFLAGS+= ${PROTOS}
+CLEANFILES+= opt_ng_cronyx.h opt_netgraph.h bpf.h cxddk.c csigma.c sppp.h
+
+opt_netgraph.h:
+	echo "#define NETGRAPH $(NETGRAPH)" > opt_netgraph.h
+
+opt_ng_cronyx.h:
+.if ${NG_CRONYX} != 0
+	echo "#define NETGRAPH_CRONYX 1" > opt_ng_cronyx.h
+.else
+	echo "" > opt_ng_cronyx.h
+.endif
+
+sppp.h:
+.if ${NG_CRONYX} == 0
+	echo "#define NSPPP 1" > sppp.h
+.else
+	echo "#define NSPPP 0" > sppp.h
+.endif	
+
+bpf.h:
+	echo "#define NBPF ${NBPF}" > bpf.h
+
+.include <bsd.kmod.mk>