Add et(4), a port of DragonFly's Agere ET1310 10/100/Gigabit

Ethernet device driver, written by sephe@

Obtained from:	DragonFly
Sponsored by:	iXsystems
MFC after:	2 weeks

2 files changed, 419 insertions, 0 deletions

diff --git a/sys/dev/mii/truephy.c b/sys/dev/mii/truephy.c
new file mode 100644
index 0000000..f5de6c4
--- /dev/null
+++ b/sys/dev/mii/truephy.c
@@ -0,0 +1,355 @@
+/*-
+ * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
+ * 
+ * This code is derived from software contributed to The DragonFly Project
+ * by Sepherosa Ziehau <sepherosa@gmail.com>
+ * 
+ * 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. Neither the name of The DragonFly Project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific, prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT HOLDERS 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.
+ * 
+ * $DragonFly: src/sys/dev/netif/mii_layer/truephy.c,v 1.3 2008/02/10 07:29:27 sephe Exp $
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/errno.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+#include <net/if_arp.h>
+#include <net/ethernet.h>
+#include <net/if_vlan_var.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+#include "miidevs.h"
+
+#include <dev/mii/truephyreg.h>
+
+#include "miibus_if.h"
+
+#define FRAMELEN(mtu)	(ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + (mtu) + ETHER_CRC_LEN)
+
+static int	truephy_service(struct mii_softc *, struct mii_data *, int);
+static int	truephy_attach(device_t);
+static int	truephy_probe(device_t);
+static void	truephy_reset(struct mii_softc *);
+static void	truephy_status(struct mii_softc *);
+
+static device_method_t truephy_methods[] = {
+	/* device interface */
+	DEVMETHOD(device_probe,		truephy_probe),
+	DEVMETHOD(device_attach,	truephy_attach),
+	DEVMETHOD(device_detach,	mii_phy_detach),
+	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
+	{ 0, 0 }
+};
+
+static const struct mii_phydesc truephys[] = {
+	MII_PHY_DESC(AGERE,	ET1011C),
+	MII_PHY_END
+};
+
+static devclass_t truephy_devclass;
+
+static driver_t truephy_driver = {
+	"truephy",
+	truephy_methods,
+	sizeof(struct mii_softc)
+};
+
+DRIVER_MODULE(truephy, miibus, truephy_driver, truephy_devclass, 0, 0);
+
+static const struct truephy_dsp {
+	uint16_t	index;
+	uint16_t	data;
+} truephy_dspcode[] = {
+	{ 0x880b,	0x0926 },	/* AfeIfCreg4B1000Msbs */
+	{ 0x880c,	0x0926 },	/* AfeIfCreg4B100Msbs */
+	{ 0x880d,	0x0926 },	/* AfeIfCreg4B10Msbs */
+
+	{ 0x880e,	0xb4d3 },	/* AfeIfCreg4B1000Lsbs */
+	{ 0x880f,	0xb4d3 },	/* AfeIfCreg4B100Lsbs */
+	{ 0x8810,	0xb4d3 },	/* AfeIfCreg4B10Lsbs */
+
+	{ 0x8805,	0xb03e },	/* AfeIfCreg3B1000Msbs */
+	{ 0x8806,	0xb03e },	/* AfeIfCreg3B100Msbs */
+	{ 0x8807,	0xff00 },	/* AfeIfCreg3B10Msbs */
+
+	{ 0x8808,	0xe090 },	/* AfeIfCreg3B1000Lsbs */
+	{ 0x8809,	0xe110 },	/* AfeIfCreg3B100Lsbs */
+	{ 0x880a,	0x0000 },	/* AfeIfCreg3B10Lsbs */
+
+	{ 0x300d,	1      },	/* DisableNorm */
+
+	{ 0x280c,	0x0180 },	/* LinkHoldEnd */
+
+	{ 0x1c21,	0x0002 },	/* AlphaM */
+
+	{ 0x3821,	6      },	/* FfeLkgTx0 */
+	{ 0x381d,	1      },	/* FfeLkg1g4 */
+	{ 0x381e,	1      },	/* FfeLkg1g5 */
+	{ 0x381f,	1      },	/* FfeLkg1g6 */
+	{ 0x3820,	1      },	/* FfeLkg1g7 */
+
+	{ 0x8402,	0x01f0 },	/* Btinact */
+	{ 0x800e,	20     },	/* LftrainTime */
+	{ 0x800f,	24     },	/* DvguardTime */
+	{ 0x8010,	46     }	/* IdlguardTime */
+};
+
+static int
+truephy_probe(device_t dev)
+{
+
+	return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT));
+}
+
+static int
+truephy_attach(device_t dev)
+{
+	struct mii_softc *sc;
+	struct mii_attach_args *ma;
+	struct mii_data *mii;
+
+	sc = device_get_softc(dev);
+	ma = device_get_ivars(dev);
+
+	sc->mii_phy = ma->mii_phyno;
+	if (sc->mii_anegticks == 0)
+		sc->mii_anegticks = MII_ANEGTICKS;
+	sc->mii_dev = device_get_parent(dev);
+	mii = device_get_softc(sc->mii_dev);
+	LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
+
+	sc->mii_inst = mii->mii_instance;
+	sc->mii_phy = ma->mii_phyno;
+	sc->mii_service = truephy_service;
+	sc->mii_pdata = mii;
+
+	sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP;
+
+	mii->mii_instance++;
+
+	truephy_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);
+		/* No 1000baseT half-duplex support */
+		sc->mii_extcapabilities &= ~EXTSR_1000THDX;
+	}
+
+	device_printf(dev, " ");
+	if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
+	    (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
+		printf("no media present");
+	else
+		mii_phy_add_media(sc);
+	printf("\n");
+
+	MIIBUS_MEDIAINIT(sc->mii_dev);
+	return 0;
+}
+
+static int
+truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
+{
+	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+	int bmcr;
+
+	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) {
+			bmcr = PHY_READ(sc, MII_BMCR);
+			PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO);
+			return 0;
+		}
+
+		/*
+		 * If the interface is not up, don't do anything.
+		 */
+		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+			break;
+
+		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
+			bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN;
+			PHY_WRITE(sc, MII_BMCR, bmcr);
+			PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN);
+		}
+
+		mii_phy_setmedia(sc);
+
+		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
+			bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN;
+			PHY_WRITE(sc, MII_BMCR, bmcr);
+
+			if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
+				PHY_WRITE(sc, MII_BMCR,
+					  bmcr | BMCR_AUTOEN | BMCR_STARTNEG);
+			}
+		}
+		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;
+	}
+
+	/* Update the media status. */
+	truephy_status(sc);
+
+	/* Callback if something changed. */
+	mii_phy_update(sc, cmd);
+	return 0;
+}
+
+static void
+truephy_reset(struct mii_softc *sc)
+{
+	int i;
+
+	for (i = 0; i < 2; ++i) {
+		PHY_READ(sc, MII_PHYIDR1);
+		PHY_READ(sc, MII_PHYIDR2);
+
+		PHY_READ(sc, TRUEPHY_CTRL);
+		PHY_WRITE(sc, TRUEPHY_CTRL,
+			  TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1);
+
+		PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC);
+		PHY_READ(sc, TRUEPHY_DATA);
+
+		PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
+	}
+
+	PHY_READ(sc, MII_BMCR);
+	PHY_READ(sc, TRUEPHY_CTRL);
+	PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000);
+	PHY_WRITE(sc, TRUEPHY_CTRL,
+		  TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0);
+
+#define N(arr)	(int)(sizeof(arr) / sizeof(arr[0]))
+
+	for (i = 0; i < N(truephy_dspcode); ++i) {
+		const struct truephy_dsp *dsp = &truephy_dspcode[i];
+
+		PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
+		PHY_WRITE(sc, TRUEPHY_DATA, dsp->data);
+
+		PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
+		PHY_READ(sc, TRUEPHY_DATA);
+	}
+
+#undef N
+
+	PHY_READ(sc, MII_BMCR);
+	PHY_READ(sc, TRUEPHY_CTRL);
+	PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN |  BMCR_S1000);
+	PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
+
+	mii_phy_reset(sc);
+
+	if (FRAMELEN(sc->mii_pdata->mii_ifp->if_mtu) > 2048) {
+		int conf;
+
+		conf = PHY_READ(sc, TRUEPHY_CONF);
+		conf &= ~TRUEPHY_CONF_TXFIFO_MASK;
+		conf |= TRUEPHY_CONF_TXFIFO_24;
+		PHY_WRITE(sc, TRUEPHY_CONF, conf);
+	}
+}
+
+static void
+truephy_status(struct mii_softc *sc)
+{
+	struct mii_data *mii = sc->mii_pdata;
+	int bmsr, bmcr, sr;
+
+	mii->mii_media_status = IFM_AVALID;
+	mii->mii_media_active = IFM_ETHER;
+
+	sr = PHY_READ(sc, TRUEPHY_SR);
+	bmcr = PHY_READ(sc, MII_BMCR);
+
+	bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
+	if (bmsr & BMSR_LINK)
+		mii->mii_media_status |= IFM_ACTIVE;
+
+	if (bmcr & BMCR_AUTOEN) {
+		if ((bmsr & BMSR_ACOMP) == 0) {
+			mii->mii_media_active |= IFM_NONE;
+			return;
+		}
+	}
+
+	switch (sr & TRUEPHY_SR_SPD_MASK) {
+	case TRUEPHY_SR_SPD_1000T:
+		mii->mii_media_active |= IFM_1000_T;
+		break;
+	case TRUEPHY_SR_SPD_100TX:
+		mii->mii_media_active |= IFM_100_TX;
+		break;
+	case TRUEPHY_SR_SPD_10T:
+		mii->mii_media_active |= IFM_10_T;
+		break;
+	default:
+		/* XXX will this ever happen? */
+		printf("invalid media SR %#x\n", sr);
+		mii->mii_media_active |= IFM_NONE;
+		return;
+	}
+
+	if (sr & TRUEPHY_SR_FDX)
+		mii->mii_media_active |= IFM_FDX;
+	else
+		mii->mii_media_active |= IFM_HDX;
+}
diff --git a/sys/dev/mii/truephyreg.h b/sys/dev/mii/truephyreg.h
new file mode 100644
index 0000000..d7e3551
--- /dev/null
+++ b/sys/dev/mii/truephyreg.h
@@ -0,0 +1,64 @@
+/*-
+ * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
+ * 
+ * This code is derived from software contributed to The DragonFly Project
+ * by Sepherosa Ziehau <sepherosa@gmail.com>
+ * 
+ * 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. Neither the name of The DragonFly Project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific, prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT HOLDERS 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.
+ * 
+ * $DragonFly: src/sys/dev/netif/mii_layer/truephyreg.h,v 1.2 2007/10/23 14:28:42 sephe Exp $
+ * $FreeBSD$
+ */
+
+#ifndef _MII_TRUEPHYREG_H
+#define _MII_TRUEPHYREG_H
+
+#define TRUEPHY_INDEX		0x10	/* XXX reserved in DS */
+#define TRUEPHY_INDEX_MAGIC	0x402
+#define TRUEPHY_DATA		0x11	/* XXX reserved in DS */
+
+#define TRUEPHY_CTRL		0x12
+#define TRUEPHY_CTRL_DIAG	0x0004
+#define TRUEPHY_CTRL_RSV1	0x0002	/* XXX reserved */
+#define TRUEPHY_CTRL_RSV0	0x0001	/* XXX reserved */
+
+#define TRUEPHY_CONF		0x16
+#define TRUEPHY_CONF_TXFIFO_MASK 0x3000
+#define TRUEPHY_CONF_TXFIFO_8	0x0000
+#define TRUEPHY_CONF_TXFIFO_16	0x1000
+#define TRUEPHY_CONF_TXFIFO_24	0x2000
+#define TRUEPHY_CONF_TXFIFO_32	0x3000
+
+#define TRUEPHY_SR		0x1a
+#define TRUEPHY_SR_SPD_MASK	0x0300
+#define TRUEPHY_SR_SPD_1000T	0x0200
+#define TRUEPHY_SR_SPD_100TX	0x0100
+#define TRUEPHY_SR_SPD_10T	0x0000
+#define TRUEPHY_SR_FDX		0x0080
+
+#endif	/* !_MII_TRUEPHYREG_H */