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, 224 insertions, 0 deletions

diff --git a/sys/dev/snc/if_snc_cbus.c b/sys/dev/snc/if_snc_cbus.c
new file mode 100644
index 0000000..6575269
--- /dev/null
+++ b/sys/dev/snc/if_snc_cbus.c
@@ -0,0 +1,224 @@
+/*
+ * 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 C-bus specific attachment on FreeBSD
+ *		written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/socket.h>
+#include <sys/kernel.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_mib.h>
+
+#include <isa/isavar.h>
+#include <isa/pnpvar.h>
+#include <sys/malloc.h>		/* as dependency for isa/isa_common.h */
+#include <isa/isa_common.h>	/* for snc_isapnp_reconfig() */
+
+#include <dev/snc/dp83932var.h>
+#include <dev/snc/dp83932subr.h>
+#include <dev/snc/if_sncreg.h>
+#include <dev/snc/if_sncvar.h>
+
+static void snc_isapnp_reconfig	__P((device_t));
+static int snc_isa_probe	__P((device_t));
+static int snc_isa_attach	__P((device_t));
+
+static struct isa_pnp_id snc_ids[] = {
+	{ 0x6180a3b8,	NULL },		/* NEC8061 NEC PC-9801-104 */
+	{ 0,		NULL }
+};
+
+static void
+snc_isapnp_reconfig(dev)
+	device_t dev;
+{
+	struct isa_device *idev = DEVTOISA(dev);
+        struct isa_config config;
+	u_long start, count;
+	int rid;
+
+	bzero(&config, sizeof(config));
+
+	for (rid = 0; rid < ISA_NMEM; rid++) {
+		if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count))
+			break;
+		config.ic_mem[rid].ir_start = start;
+		config.ic_mem[rid].ir_end = start;
+		config.ic_mem[rid].ir_size = count;
+	}
+	config.ic_nmem = rid;
+	for (rid = 0; rid < ISA_NPORT; rid++) {
+		if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count))
+			break;
+		config.ic_port[rid].ir_start = start;
+		config.ic_port[rid].ir_end = start;
+		config.ic_port[rid].ir_size = count;
+	}
+	config.ic_nport = rid;
+	for (rid = 0; rid < ISA_NIRQ; rid++) {
+		if (bus_get_resource(dev, SYS_RES_IRQ, rid, &start, &count))
+			break;
+		config.ic_irqmask[rid] = 1 << start;
+	}
+	config.ic_nirq = rid;
+	for (rid = 0; rid < ISA_NDRQ; rid++) {
+		if (bus_get_resource(dev, SYS_RES_DRQ, rid, &start, &count))
+			break;
+		config.ic_drqmask[rid] = 1 << start;
+	}
+	config.ic_ndrq = rid;
+	
+	idev->id_config_cb(idev->id_config_arg, &config, 1);
+}
+
+static int
+snc_isa_probe(dev)
+	device_t dev;
+{
+	struct snc_softc *sc = device_get_softc(dev);
+	int type;
+ 	int error = 0;
+
+	bzero(sc, sizeof(struct snc_softc));
+
+	/* Check isapnp ids */
+	error = ISA_PNP_PROBE(device_get_parent(dev), dev, snc_ids);
+
+	/* If the card had a PnP ID that didn't match any we know about */
+	if (error == ENXIO) {
+		return(error);
+	}
+
+	switch (error) {
+	case 0:		/* Matched PnP */
+		type = SNEC_TYPE_PNP;
+		break;
+
+	case ENOENT:	/* Legacy ISA */
+		type = SNEC_TYPE_LEGACY;
+		break;
+
+	default:	/* If we had some other problem. */
+		return(error);
+	}
+
+	if (type == SNEC_TYPE_PNP && isa_get_portsize(dev) == 0) {
+		int port;
+		int rid = 0;
+		struct resource *res = NULL;
+
+		for (port = 0x0888; port <= 0x3888; port += 0x1000) {
+			bus_set_resource(dev, SYS_RES_IOPORT, rid,
+					 port, SNEC_NREGS);
+			res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
+						 0, ~0, SNEC_NREGS,
+						 0 /* !RF_ACTIVE */);
+			if (res) break;
+		}
+
+		printf("snc_isa_probe: broken PnP resource, ");
+		if (res) {
+			printf("use port 0x%x\n", port);
+			bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
+			snc_isapnp_reconfig(dev);
+		} else {
+			printf("and can't find port\n");
+		}
+	}
+
+	error = snc_alloc_port(dev, 0);
+	error = max(error, snc_alloc_memory(dev, 0));
+	error = max(error, snc_alloc_irq(dev, 0, 0));
+
+	if (!error && !snc_probe(dev, type))
+		error = ENOENT;
+
+	snc_release_resources(dev);
+	return (error);
+}
+
+static int
+snc_isa_attach(dev)
+	device_t dev;
+{
+	struct snc_softc *sc = device_get_softc(dev);
+	int error;
+	
+	bzero(sc, sizeof(struct snc_softc));
+
+	snc_alloc_port(dev, 0);
+	snc_alloc_memory(dev, 0);
+	snc_alloc_irq(dev, 0, 0);
+		
+	error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
+			       sncintr, sc, &sc->irq_handle);
+	if (error) {
+		printf("snc_isa_attach: bus_setup_intr() failed\n");
+		snc_release_resources(dev);
+		return (error);
+	}	       
+
+	/* This interface is always enabled. */
+	sc->sc_enabled = 1;
+
+	return snc_attach(dev);
+} 
+
+static device_method_t snc_isa_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		snc_isa_probe),
+	DEVMETHOD(device_attach,	snc_isa_attach),
+	DEVMETHOD(device_shutdown,	snc_shutdown),
+
+	{ 0, 0 }
+};
+
+static driver_t snc_isa_driver = {
+	"snc",
+	snc_isa_methods,
+	sizeof(struct snc_softc)
+};
+
+DRIVER_MODULE(if_snc, isa, snc_isa_driver, snc_devclass, 0, 0);