dev/mii'fy RTL driver and add new phy driver for the 8139 internal phy

1 files changed, 217 insertions, 0 deletions

diff --git a/sys/dev/mii/rlphy.c b/sys/dev/mii/rlphy.c
new file mode 100644
index 00000000000..061ece97d6f
--- /dev/null
+++ b/sys/dev/mii/rlphy.c
@@ -0,0 +1,217 @@
+/*	$OpenBSD: rlphy.c,v 1.1 1998/11/18 20:11:31 jason Exp $	*/
+
+/*
+ * Copyright (c) 1998 Jason L. Wright (jason@thought.net)
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Jason L. Wright
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * 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.
+ */
+
+/*
+ * Driver for the internal PHY found on RTL8139 based nics, based
+ * on drivers for the 'exphy' (Internal 3Com phys) and 'nsphy'
+ * (National Semiconductor DP83840).
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/socket.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+#include <dev/mii/miidevs.h>
+
+int	rlphymatch __P((struct device *, void *, void *));
+void	rlphyattach __P((struct device *, struct device *, void *));
+
+struct cfattach rlphy_ca = {
+	sizeof(struct mii_softc), rlphymatch, rlphyattach
+};
+
+struct cfdriver rlphy_cd = {
+	NULL, "rlphy", DV_DULL
+};
+
+int	rlphy_service __P((struct mii_softc *, struct mii_data *, int));
+void	rlphy_reset __P((struct mii_softc *));
+
+int
+rlphymatch(parent, match, aux)
+	struct device *parent;
+	void *match;
+	void *aux;
+{
+	struct mii_attach_args *ma = aux;
+
+	if (MII_OUI(ma->mii_id1, ma->mii_id2) != 0 ||
+	    MII_MODEL(ma->mii_id2) != 0)
+		return (0);
+
+	if (strcmp(parent->dv_cfdata->cf_driver->cd_name, "rl") != 0)
+		return (0);
+
+	/*
+	 * A "real" phy should get preference, but on the 8139 there
+	 * is no phyid register.
+	 */
+	return (5);
+}
+
+void
+rlphyattach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct mii_softc *sc = (struct mii_softc *)self;
+	struct mii_attach_args *ma = aux;
+	struct mii_data *mii = ma->mii_data;
+
+	printf(": RTL internal phy\n");
+
+	sc->mii_inst = mii->mii_instance;
+	sc->mii_phy = ma->mii_phyno;
+	sc->mii_service = rlphy_service;
+	sc->mii_pdata = mii;
+
+	ifmedia_add(&mii->mii_media,
+	    IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
+	    BMCR_ISO, NULL);
+	ifmedia_add(&mii->mii_media,
+	    IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
+	    BMCR_LOOP | BMCR_S100, NULL);
+
+	rlphy_reset(sc);
+
+	sc->mii_capabilities =
+	    PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
+	printf("%s: ", sc->mii_dev.dv_xname);
+	if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
+		printf("no media present");
+	else
+		mii_add_media(mii, sc->mii_capabilities,
+		    sc->mii_inst);
+	printf("\n");
+}
+
+int
+rlphy_service(sc, mii, cmd)
+	struct mii_softc *sc;
+	struct mii_data *mii;
+	int cmd;
+{
+	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+
+	/*
+	 * Can't isolate the RTL8139 phy, so it has to be the only one.
+	 */
+	if (IFM_INST(ife->ifm_media) != sc->mii_inst)
+		panic("rlphy_service: attempt to isolate phy");
+
+	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;
+
+		switch (IFM_SUBTYPE(ife->ifm_media)) {
+		case IFM_AUTO:
+			/*
+			 * If we're already in auto mode, just return.
+			 */
+			if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
+				return (0);
+			(void) mii_phy_auto(sc);
+			break;
+		case IFM_100_T4:
+			/*
+			 * XXX Not supported as a manual setting right now.
+			 */
+			return (EINVAL);
+		default:
+			/*
+			 * BMCR data is stored in the ifmedia entry.
+			 */
+			PHY_WRITE(sc, MII_ANAR,
+			    mii_anar(ife->ifm_media));
+			PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
+		}
+		break;
+
+	case MII_TICK:
+		/*
+		 * Only used for autonegotiation.
+		 */
+		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
+			return (0);
+
+		/*
+		 * Is the interface even up?
+		 */
+		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+			return (0);
+
+		/*
+		 * The RTL8139 autonegotiation doesn't need to be
+		 * kicked; it continues in the background.
+		 */
+		break;
+	}
+
+	/* Update the media status. */
+	ukphy_status(sc);
+
+	/* Callback if something changed. */
+	if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
+		(*mii->mii_statchg)(sc->mii_dev.dv_parent);
+		sc->mii_active = mii->mii_media_active;
+	}
+	return (0);
+}
+
+void
+rlphy_reset(sc)
+	struct mii_softc *sc;
+{
+	mii_phy_reset(sc);
+
+	/*
+	 * XXX The RTL8139 doesn't set the BMCR properly
+	 * XXX after reset, which breaks autoneg.
+	 */
+	PHY_WRITE(sc, MII_BMCR, BMCR_S100 | BMCR_AUTOEN | BMCR_FDX);
+}