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[src/trunk]: src/sys/dev/mii Add a driver for generic HomePNA PHYs. Currentl...
details: https://anonhg.NetBSD.org/src/rev/9f083f53473c
branches: trunk
changeset: 514168:9f083f53473c
user: thorpej <thorpej%NetBSD.org@localhost>
date: Sat Aug 25 03:21:38 2001 +0000
description:
Add a driver for generic HomePNA PHYs. Currently supports the HomePNA
portion of the AMD Am79c901.
diffstat:
sys/dev/mii/files.mii | 6 +-
sys/dev/mii/pnaphy.c | 233 ++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 238 insertions(+), 1 deletions(-)
diffs (257 lines):
diff -r d067e30315e9 -r 9f083f53473c sys/dev/mii/files.mii
--- a/sys/dev/mii/files.mii Sat Aug 25 01:57:56 2001 +0000
+++ b/sys/dev/mii/files.mii Sat Aug 25 03:21:38 2001 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.mii,v 1.26 2001/08/24 17:54:32 thorpej Exp $
+# $NetBSD: files.mii,v 1.27 2001/08/25 03:21:38 thorpej Exp $
file dev/mii/mii.c mii
@@ -86,6 +86,10 @@
attach dmphy at mii
file dev/mii/dmphy.c dmphy
+device pnaphy: mii_phy
+attach pnaphy at mii
+file dev/mii/pnaphy.c pnaphy
+
device ukphy: mii_phy, ukphy_subr
attach ukphy at mii
file dev/mii/ukphy.c ukphy
diff -r d067e30315e9 -r 9f083f53473c sys/dev/mii/pnaphy.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/mii/pnaphy.c Sat Aug 25 03:21:38 2001 +0000
@@ -0,0 +1,233 @@
+/* $NetBSD: pnaphy.c,v 1.1 2001/08/25 03:21:38 thorpej Exp $ */
+
+/*
+ * Copyright 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
+ * 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 for the NetBSD Project by
+ * Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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 generic HomePNA 1.0 PHYs.
+ *
+ * HomePNA 1.0 PHYs are pretty simple -- they support exactly one
+ * media type, and don't do autonegotiation.
+ *
+ * HomePNA PHYs often have vendor-specific registers for tuning
+ * the network connection, but we don't deal with any of that
+ * at all.
+ */
+
+#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 <sys/errno.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 pnaphymatch(struct device *, struct cfdata *, void *);
+void pnaphyattach(struct device *, struct device *, void *);
+
+struct cfattach pnaphy_ca = {
+ sizeof(struct mii_softc), pnaphymatch, pnaphyattach,
+ mii_phy_detach, mii_phy_activate
+};
+
+int pnaphy_service(struct mii_softc *, struct mii_data *, int);
+void pnaphy_status(struct mii_softc *);
+
+const struct mii_phy_funcs pnaphy_funcs = {
+ pnaphy_service, pnaphy_status, mii_phy_reset,
+};
+
+const struct mii_phydesc pnaphys[] = {
+ { MII_OUI_yyAMD, MII_MODEL_yyAMD_79c901home,
+ MII_STR_yyAMD_79c901home },
+
+ { 0, 0,
+ NULL },
+};
+
+int
+pnaphymatch(parent, match, aux)
+ struct device *parent;
+ struct cfdata *match;
+ void *aux;
+{
+ struct mii_attach_args *ma = aux;
+
+ if (mii_phy_match(ma, pnaphys) != NULL) {
+ /*
+ * Match higher than ukphy, but lower than a specific
+ * driver would match.
+ */
+ return (2);
+ }
+
+ return (0);
+}
+
+void
+pnaphyattach(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;
+ const struct mii_phydesc *mpd;
+
+ mpd = mii_phy_match(ma, pnaphys);
+ printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
+
+ sc->mii_inst = mii->mii_instance;
+ sc->mii_phy = ma->mii_phyno;
+ sc->mii_funcs = &pnaphy_funcs;
+ sc->mii_pdata = mii;
+ sc->mii_flags = mii->mii_flags;
+ sc->mii_anegticks = 5;
+
+ PHY_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_phy_add_media(sc);
+ printf("\n");
+}
+
+int
+pnaphy_service(sc, mii, cmd)
+ struct mii_softc *sc;
+ struct mii_data *mii;
+ int cmd;
+{
+ struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+ int reg;
+
+ switch (cmd) {
+ case MII_POLLSTAT:
+ /*
+ * If we're not polling our PHY instance, just return.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst)
+ return (0);
+ break;
+
+ case MII_MEDIACHG:
+ /*
+ * If the media indicates a different PHY instance,
+ * isolate ourselves.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
+ reg = PHY_READ(sc, MII_BMCR);
+ PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
+ return (0);
+ }
+
+ /*
+ * 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:
+ /*
+ * If we're not currently selected, just return.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst)
+ return (0);
+
+ if (mii_phy_tick(sc) == EJUSTRETURN)
+ return (0);
+ break;
+
+ case MII_DOWN:
+ mii_phy_down(sc);
+ return (0);
+ }
+
+ /* Update the media status. */
+ mii_phy_status(sc);
+
+ /* Callback if something changed. */
+ mii_phy_update(sc, cmd);
+ return (0);
+}
+
+void
+pnaphy_status(sc)
+ struct mii_softc *sc;
+{
+ struct mii_data *mii = sc->mii_pdata;
+ struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+ int bmsr, bmcr;
+
+ mii->mii_media_status = IFM_AVALID;
+ mii->mii_media_active = IFM_ETHER;
+
+ bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
+
+ if (bmsr & BMSR_LINK)
+ mii->mii_media_status |= IFM_ACTIVE;
+
+ bmcr = PHY_READ(sc, MII_BMCR);
+ if (bmcr & BMCR_ISO) {
+ mii->mii_media_active |= IFM_NONE;
+ mii->mii_media_status = 0;
+ return;
+ }
+
+ if (bmcr & BMCR_LOOP)
+ mii->mii_media_active |= IFM_LOOP;
+
+ /*
+ * On HomePNA PHYs, the current media is always the selected
+ * media.
+ *
+ * XXX May not be the case w/ HomePNA 2.
+ */
+ mii->mii_media_active = ife->ifm_media;
+}
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