Add RDC Semiconductor R6040 10/100 PHY driver.

3 files changed, 344 insertions, 0 deletions

diff --git a/sys/dev/mii/miidevs b/sys/dev/mii/miidevs
index 24cd551b3bd7..4b7a207ad368 100644
--- a/sys/dev/mii/miidevs
+++ b/sys/dev/mii/miidevs
@@ -59,6 +59,7 @@ oui JMICRON			0x001b8c	JMicron Technologies
 oui LEVEL1			0x00207b	Level 1
 oui NATSEMI			0x080017	National Semiconductor
 oui QUALSEMI			0x006051	Quality Semiconductor
+oui RDC				0x000bb4	RDC Semiconductor
 oui REALTEK			0x000020	RealTek Semicondctor
 oui SEEQ			0x00a07d	Seeq
 oui SIS				0x00e006	Silicon Integrated Systems
@@ -213,6 +214,9 @@ model NATSEMI DP83865		0x0007 DP83865 10/100/1000 media interface
 /* Quality Semiconductor PHYs */
 model QUALSEMI QS6612		0x0000 QS6612 10/100 media interface
 
+/* RDC Semiconductor PHYs */
+model RDC R6040			0x0003 R6040 10/100 media interface
+
 /* RealTek Semiconductor PHYs */
 model REALTEK RTL8201L		0x0020 RTL8201L 10/100 media interface
 model xxREALTEK RTL8305SC	0x0005 RTL8305SC 10/100 802.1q switch
diff --git a/sys/dev/mii/rdcphy.c b/sys/dev/mii/rdcphy.c
new file mode 100644
index 000000000000..cdc3f8a1e2ae
--- /dev/null
+++ b/sys/dev/mii/rdcphy.c
@@ -0,0 +1,267 @@
+/*-
+ * Copyright (c) 2010, Pyun YongHyeon <yongari@FreeBSD.org>
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Driver for the RDC Semiconductor R6040 10/100 PHY.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/socket.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 <dev/mii/rdcphyreg.h>
+
+#include "miibus_if.h"
+
+static device_probe_t	rdcphy_probe;
+static device_attach_t	rdcphy_attach;
+
+struct rdcphy_softc {
+	struct mii_softc mii_sc;
+	int mii_model;
+	int mii_link_tick;
+#define	RDCPHY_MANNEG_TICK	3
+};
+
+static device_method_t rdcphy_methods[] = {
+	/* device interface */
+	DEVMETHOD(device_probe,		rdcphy_probe),
+	DEVMETHOD(device_attach,	rdcphy_attach),
+	DEVMETHOD(device_detach,	mii_phy_detach),
+	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
+	KOBJMETHOD_END
+};
+
+static devclass_t rdcphy_devclass;
+
+static driver_t rdcphy_driver = {
+	"rdcphy",
+	rdcphy_methods,
+	sizeof(struct rdcphy_softc)
+};
+
+DRIVER_MODULE(rdcphy, miibus, rdcphy_driver, rdcphy_devclass, 0, 0);
+
+static int	rdcphy_service(struct mii_softc *, struct mii_data *, int);
+static void	rdcphy_status(struct mii_softc *);
+
+static const struct mii_phydesc rdcphys[] = {
+	MII_PHY_DESC(RDC, R6040),
+	MII_PHY_END
+};
+
+static int
+rdcphy_probe(device_t dev)
+{
+
+	return (mii_phy_dev_probe(dev, rdcphys, BUS_PROBE_DEFAULT));
+}
+
+static int
+rdcphy_attach(device_t dev)
+{
+	struct rdcphy_softc *rsc;
+	struct mii_softc *sc;
+	struct mii_attach_args *ma;
+	struct mii_data *mii;
+
+	rsc = device_get_softc(dev);
+	sc = &rsc->mii_sc;
+	ma = device_get_ivars(dev);
+	sc->mii_dev = device_get_parent(dev);
+	mii = ma->mii_data;
+	LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
+
+	sc->mii_flags = miibus_get_flags(dev);
+	sc->mii_inst = mii->mii_instance++;
+	sc->mii_phy = ma->mii_phyno;
+	sc->mii_service = rdcphy_service;
+	sc->mii_pdata = mii;
+
+	rsc->mii_model = MII_MODEL(ma->mii_id2);
+	if (bootverbose)
+		device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
+		    MII_OUI(ma->mii_id1, ma->mii_id2), MII_MODEL(ma->mii_id2),
+		    MII_REV(ma->mii_id2));
+
+	mii_phy_reset(sc);
+
+	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
+	if (sc->mii_capabilities & BMSR_EXTSTAT)
+		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
+	device_printf(dev, " ");
+	mii_phy_add_media(sc);
+	printf("\n");
+
+	MIIBUS_MEDIAINIT(sc->mii_dev);
+	return (0);
+}
+
+static int
+rdcphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
+{
+	struct rdcphy_softc *rsc;
+	struct ifmedia_entry *ife;
+
+	rsc = (struct rdcphy_softc *)sc;
+	ife = mii->mii_media.ifm_cur;
+
+	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);
+		switch (IFM_SUBTYPE(ife->ifm_media)) {
+		case IFM_100_TX:
+		case IFM_10_T:
+			/*
+			 * Report fake lost link event to parent
+			 * driver.  This will stop MAC of parent
+			 * driver and make it possible to reconfigure
+			 * MAC after completion of link establishment.
+			 * Note, the parent MAC seems to require
+			 * restarting MAC when underlying any PHY
+			 * configuration was changed even if the
+			 * resolved speed/duplex was not changed at
+			 * all.
+			 */
+			mii->mii_media_status = 0;
+			mii->mii_media_active = IFM_ETHER | IFM_NONE;
+			rsc->mii_link_tick = RDCPHY_MANNEG_TICK;
+			/* Immediately report link down. */
+			mii_phy_update(sc, MII_MEDIACHG);
+			return (0);
+		default:
+			break;
+		}
+		break;
+
+	case MII_TICK:
+		if (mii_phy_tick(sc) == EJUSTRETURN)
+			return (0);
+		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
+			/*
+			 * It seems the PHY hardware does not correctly
+			 * report link status changes when manual link
+			 * configuration is in progress.  It is also
+			 * possible for the PHY to complete establishing
+			 * a link within one second such that mii(4)
+			 * did not notice the link change.  To workaround
+			 * the issue, emulate lost link event and wait
+			 * for 3 seconds when manual link configuration
+			 * is in progress.  3 seconds would be long
+			 * enough to absorb transient link flips.
+			 */
+			if (rsc->mii_link_tick > 0) {
+				rsc->mii_link_tick--;
+				return (0);
+			}
+		}
+		break;
+	}
+
+	/* Update the media status. */
+	rdcphy_status(sc);
+
+	/* Callback if something changed. */
+	mii_phy_update(sc, cmd);
+	return (0);
+}
+
+static void
+rdcphy_status(struct mii_softc *sc)
+{
+	struct mii_data *mii;
+	struct ifmedia_entry *ife;
+	int bmsr, bmcr, physts;
+
+	mii = sc->mii_pdata;
+	ife = mii->mii_media.ifm_cur;
+
+	mii->mii_media_status = IFM_AVALID;
+	mii->mii_media_active = IFM_ETHER;
+
+	bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
+	physts = PHY_READ(sc, MII_RDCPHY_STATUS);
+
+	if ((physts & STATUS_LINK_UP) != 0)
+		mii->mii_media_status |= IFM_ACTIVE;
+
+	bmcr = PHY_READ(sc, MII_BMCR);
+	if ((bmcr & BMCR_ISO) != 0) {
+		mii->mii_media_active |= IFM_NONE;
+		mii->mii_media_status = 0;
+		return;
+	}
+
+	if ((bmcr & BMCR_LOOP) != 0)
+		mii->mii_media_active |= IFM_LOOP;
+
+	if ((bmcr & BMCR_AUTOEN) != 0) {
+		if ((bmsr & BMSR_ACOMP) == 0) {
+			/* Erg, still trying, I guess... */
+			mii->mii_media_active |= IFM_NONE;
+			return;
+		}
+	}
+
+	switch (physts & STATUS_SPEED_MASK) {
+	case STATUS_SPEED_100:
+		mii->mii_media_active |= IFM_100_TX;
+		break;
+	case STATUS_SPEED_10:
+		mii->mii_media_active |= IFM_10_T;
+		break;
+	default:
+		mii->mii_media_active |= IFM_NONE;
+		return;
+	}
+	if ((physts & STATUS_FULL_DUPLEX) != 0)
+		mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc);
+	else
+		mii->mii_media_active |= IFM_HDX;
+}
diff --git a/sys/dev/mii/rdcphyreg.h b/sys/dev/mii/rdcphyreg.h
new file mode 100644
index 000000000000..44b14a467bc8
--- /dev/null
+++ b/sys/dev/mii/rdcphyreg.h
@@ -0,0 +1,73 @@
+/*-
+ * Copyright (c) 2010, Pyun YongHyeon <yongari@FreeBSD.org>
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _DEV_MII_RDCPHYREG_H_
+#define	_DEV_MII_RDCPHYREG_H_
+
+#define	MII_RDCPHY_DEBUG	0x11
+#define	DEBUG_JABBER_DIS	0x0040
+#define	DEBUG_LOOP_BACK_10MBPS	0x0400
+
+#define	MII_RDCPHY_CTRL		0x14
+#define	CTRL_SQE_ENB		0x0100
+#define	CTRL_NEG_POLARITY	0x0400
+#define	CTRL_AUTO_POLARITY	0x0800
+#define	CTRL_MDIXSEL_RX		0x2000
+#define	CTRL_MDIXSEL_TX		0x4000
+#define	CTRL_AUTO_MDIX_DIS	0x8000
+
+#define	MII_RDCPHY_CTRL2	0x15
+#define	CTRL2_LED_DUPLEX	0x0000
+#define	CTRL2_LED_DUPLEX_COL	0x0008
+#define	CTRL2_LED_ACT		0x0010
+#define	CTRL2_LED_SPEED_ACT	0x0018
+#define	CTRL2_LED_BLK_100MBPS_DIS	0x0020
+#define	CTRL2_LED_BLK_10MBPS_DIS	0x0040
+#define	CTRL2_LED_BLK_LINK_ACT_DIS	0x0080
+#define	CTRL2_SDT_THRESH_MASK	0x3E00
+#define	CTRL2_TIMING_ERR_SEL	0x4000
+#define	CTRL2_LED_BLK_80MS	0x8000
+#define	CTRL2_LED_BLK_160MS	0x0000
+#define	CTRL2_LED_MASK		0x0018
+
+#define	MII_RDCPHY_STATUS	0x16
+#define	STATUS_AUTO_MDIX_RX	0x0200
+#define	STATUS_AUTO_MDIX_TX	0x0400
+#define	STATUS_NEG_POLARITY	0x0800
+#define	STATUS_FULL_DUPLEX	0x1000
+#define	STATUS_SPEED_10		0x0000
+#define	STATUS_SPEED_100	0x2000
+#define	STATUS_SPEED_MASK	0x6000
+#define	STATUS_LINK_UP		0x8000
+
+/* Analog test register 2 */
+#define	MII_RDCPHY_TEST2	0x1A
+#define	TEST2_PWR_DOWN		0x0200
+
+#endif /* _DEV_MII_RDCPHYREG_H_ */