Added NEC PC-9801-83, 84, PC-9801-103, 104, PC-9801N-25 and PC-9801N-J02R

support which use National Semiconductor DP8393X (SONIC) as ethernet
controller. Currently, this driver is used on only PC-98.

Submitted by:	Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
Obtained from:	NetBSD/pc98

1 files changed, 258 insertions, 0 deletions

diff --git a/sys/dev/snc/if_snc.c b/sys/dev/snc/if_snc.c
new file mode 100644
index 0000000..5a30e3d
--- /dev/null
+++ b/sys/dev/snc/if_snc.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright (c) 1995, David Greenman
+ * 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 unmodified, 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ *	National Semiconductor  DP8393X SONIC Driver
+ *
+ *	This is the bus independent attachment on FreeBSD 4.x
+ *		written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/sockio.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/syslog.h>
+
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include <machine/resource.h>
+
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_media.h>
+#include <net/if_dl.h>
+#include <net/if_mib.h>
+
+#include <net/bpf.h>
+#include "opt_bdg.h"
+#ifdef BRIDGE
+#include <net/bridge.h>
+#endif
+
+#include <dev/snc/dp83932reg.h>
+#include <dev/snc/dp83932var.h>
+#include <dev/snc/dp83932subr.h>
+#include <dev/snc/if_sncreg.h>
+#include <dev/snc/if_sncvar.h>
+
+/* devclass for "snc" */
+devclass_t snc_devclass;
+
+/****************************************************************
+  Resource management functions
+ ****************************************************************/
+
+/*
+ * Allocate a port resource with the given resource id.
+ */
+int
+snc_alloc_port(dev, rid)
+	device_t dev;
+	int rid;
+{
+	struct snc_softc *sc = device_get_softc(dev);
+	struct resource *res;
+
+	res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
+				 0ul, ~0ul, SNEC_NREGS, RF_ACTIVE);
+	if (res) {
+		sc->ioport = res;
+		sc->ioport_rid = rid;
+		sc->sc_iot = rman_get_bustag(res);
+		sc->sc_ioh = rman_get_bushandle(res);
+		return (0);
+	} else {
+		u_long start, count;
+
+		bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count);
+		printf("snc_alloc_port: can't assign port 0x%lx-0x%lx\n",
+		       start, start + count - 1);
+		return (ENOENT);
+	}
+}
+
+/*
+ * Allocate a memory resource with the given resource id.
+ */
+int
+snc_alloc_memory(dev, rid)
+	device_t dev;
+	int rid;
+{
+	struct snc_softc *sc = device_get_softc(dev);
+	struct resource *res;
+
+	res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
+				 0ul, ~0ul, SNEC_NMEMS, RF_ACTIVE);
+	if (res) {
+		sc->iomem = res;
+		sc->iomem_rid = rid;
+		sc->sc_memt = rman_get_bustag(res);
+		sc->sc_memh = rman_get_bushandle(res);
+		return (0);
+	} else {
+		u_long start, count;
+
+		bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count);
+		printf("snc_alloc_memory: can't assign memory 0x%lx-0x%lx\n",
+		       start, start + count - 1);
+		return (ENOENT);
+	}
+}
+
+/*
+ * Allocate an irq resource with the given resource id.
+ */
+int
+snc_alloc_irq(dev, rid, flags)
+	device_t dev;
+	int rid;
+	int flags;
+{
+	struct snc_softc *sc = device_get_softc(dev);
+	struct resource *res;
+
+	res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
+				 0ul, ~0ul, 1, (RF_ACTIVE | flags));
+	if (res) {
+		sc->irq = res;
+		sc->irq_rid = rid;
+		return (0);
+	} else {
+		printf("snc_alloc_irq: can't assign irq %ld\n",
+		       bus_get_resource_start(dev, SYS_RES_IRQ, rid));
+		return (ENOENT);
+	}
+}
+
+/*
+ * Release all resources
+ */
+void
+snc_release_resources(dev)
+	device_t dev;
+{
+	struct snc_softc *sc = device_get_softc(dev);
+
+	if (sc->ioport) {
+		bus_release_resource(dev, SYS_RES_IOPORT,
+				     sc->ioport_rid, sc->ioport);
+		sc->ioport = 0;
+	}
+	if (sc->iomem) {
+		bus_release_resource(dev, SYS_RES_MEMORY,
+				     sc->iomem_rid, sc->iomem);
+		sc->iomem = 0;
+	}
+	if (sc->irq) {
+		bus_release_resource(dev, SYS_RES_IRQ,
+				     sc->irq_rid, sc->irq);
+		sc->irq = 0;
+	}
+}
+
+/****************************************************************
+  Probe routine
+ ****************************************************************/
+
+int
+snc_probe(dev, type)
+     device_t dev;
+     int type;
+{
+	struct snc_softc *sc = device_get_softc(dev);
+
+	return snc_nec16_detectsubr(sc->sc_iot, sc->sc_ioh,
+				    sc->sc_memt, sc->sc_memh,
+				    rman_get_start(sc->irq),
+				    rman_get_start(sc->iomem),
+				    type);
+}
+
+/****************************************************************
+  Attach routine
+ ****************************************************************/
+
+int
+snc_attach(dev)
+	device_t dev;
+{
+	struct snc_softc *sc = device_get_softc(dev);
+	u_int8_t myea[ETHER_ADDR_LEN];
+
+	if (snc_nec16_register_irq(sc, rman_get_start(sc->irq)) == 0 || 
+	    snc_nec16_register_mem(sc, rman_get_start(sc->iomem)) == 0) {
+		snc_release_resources(dev);
+		return(ENOENT);
+	}
+
+	snc_nec16_get_enaddr(sc->sc_iot, sc->sc_ioh, myea);
+	device_printf(dev, "%s Ethernet\n", snc_nec16_detect_type(myea));
+
+	sc->sc_dev = dev;
+
+	sc->sncr_dcr = DCR_SYNC | DCR_WAIT0 |
+            DCR_DMABLOCK | DCR_RFT16 | DCR_TFT28;
+	sc->sncr_dcr2 = 0;	/* XXX */
+	sc->bitmode = 0;	/* 16 bit card */
+
+	sc->sc_nic_put = snc_nec16_nic_put;
+	sc->sc_nic_get = snc_nec16_nic_get;
+	sc->sc_writetodesc = snc_nec16_writetodesc;
+	sc->sc_readfromdesc = snc_nec16_readfromdesc;
+	sc->sc_copytobuf = snc_nec16_copytobuf;
+	sc->sc_copyfrombuf = snc_nec16_copyfrombuf;
+	sc->sc_zerobuf = snc_nec16_zerobuf;
+
+	/* sncsetup returns 1 if something fails */
+	if (sncsetup(sc, myea)) {
+		snc_release_resources(dev);
+		return(ENOENT);
+	}
+
+	sncconfig(sc, NULL, 0, 0, myea);
+
+	return 0;
+}
+
+/****************************************************************
+  Shutdown routine
+ ****************************************************************/
+
+void
+snc_shutdown(dev)
+	device_t dev;
+{
+	sncshutdown(device_get_softc(dev));
+}