1 files changed, 197 insertions, 0 deletions

diff --git a/sys/dev/xl/xlphy.c b/sys/dev/xl/xlphy.c
new file mode 100644
index 000000000000..e5ac9fce4b29
--- /dev/null
+++ b/sys/dev/xl/xlphy.c
@@ -0,0 +1,197 @@
+/*	$NetBSD: exphy.c,v 1.16 1999/04/23 04:24:32 thorpej Exp $	*/
+
+/*-
+ * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center, and by Frank van der Linden.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*-
+ * Copyright (c) 1997 Manuel Bouyer.  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 ``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 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * driver for 3Com internal PHYs
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+#include "miidevs.h"
+
+#include "miibus_if.h"
+
+static int xlphy_probe(device_t);
+static int xlphy_attach(device_t);
+
+static device_method_t xlphy_methods[] = {
+	/* device interface */
+	DEVMETHOD(device_probe,		xlphy_probe),
+	DEVMETHOD(device_attach,	xlphy_attach),
+	DEVMETHOD(device_detach,	mii_phy_detach),
+	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
+	{ 0, 0 }
+};
+
+static devclass_t xlphy_devclass;
+
+static driver_t xlphy_driver = {
+	"xlphy",
+	xlphy_methods,
+	sizeof(struct mii_softc)
+};
+
+DRIVER_MODULE(xlphy, miibus, xlphy_driver, xlphy_devclass, 0, 0);
+
+static int	xlphy_service(struct mii_softc *, struct mii_data *, int);
+static void	xlphy_reset(struct mii_softc *);
+
+/*
+ * Some 3Com internal PHYs report zero for OUI and model, others use
+ * actual values.
+ * Note that the 3Com internal PHYs having OUI 0x105a and model 0 are
+ * handled fine by ukphy(4); they can be isolated and don't require
+ * special treatment after reset.
+ */
+static const struct mii_phydesc xlphys[] = {
+	{ 0, 0, "3Com internal media interface" },
+	MII_PHY_DESC(xxBROADCOM, 3C905C),
+	MII_PHY_END
+};
+
+static const struct mii_phy_funcs xlphy_funcs = {
+	xlphy_service,
+	ukphy_status,
+	xlphy_reset
+};
+
+static int
+xlphy_probe(device_t dev)
+{
+
+	if (strcmp(device_get_name(device_get_parent(device_get_parent(dev))),
+	    "xl") == 0)
+		return (mii_phy_dev_probe(dev, xlphys, BUS_PROBE_DEFAULT));
+	return (ENXIO);
+}
+
+static int
+xlphy_attach(device_t dev)
+{
+
+	/*
+	 * The 3Com PHY can never be isolated.
+	 */
+	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
+	    &xlphy_funcs, 1);
+	return (0);
+}
+
+static int
+xlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
+{
+
+	switch (cmd) {
+	case MII_POLLSTAT:
+		break;
+
+	case MII_MEDIACHG:
+		/*
+		 * If the interface is not up, don't do anything.
+		 */
+		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+			break;
+
+		mii_phy_setmedia(sc);
+		break;
+
+	case MII_TICK:
+		/*
+		 * Is the interface even up?
+		 */
+		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+			return (0);
+
+		/*
+		 * The 3Com PHY's autonegotiation doesn't need to be
+		 * kicked; it continues in the background.
+		 */
+		break;
+	}
+
+	/* Update the media status. */
+	PHY_STATUS(sc);
+
+	/* Callback if something changed. */
+	mii_phy_update(sc, cmd);
+	return (0);
+}
+
+static void
+xlphy_reset(struct mii_softc *sc)
+{
+
+	mii_phy_reset(sc);
+
+	/*
+	 * XXX 3Com PHY doesn't set the BMCR properly after
+	 * XXX reset, which breaks autonegotiation.
+	 */
+	PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX);
+}