From a02033c7257bbab87f964e2a224acbd73be4771f Mon Sep 17 00:00:00 2001
From: yongari <yongari@FreeBSD.org>
Date: Thu, 23 Feb 2012 01:20:21 +0000
Subject: Add Seeq Technology 80220 PHY support to smcphy(4).  This PHY is
 found on Adaptec AIC-6915 Starfire ethernet controller. While here, use
 status register to know resolved speed/duplex. With this change, sf(4)
 correctly reports speed/duplex of established link.

Reviewed by:	marius
---
 sys/dev/mii/smcphy.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 60 insertions(+), 4 deletions(-)

diff --git a/sys/dev/mii/smcphy.c b/sys/dev/mii/smcphy.c
index fbeaddf..1dd418d 100644
--- a/sys/dev/mii/smcphy.c
+++ b/sys/dev/mii/smcphy.c
@@ -55,6 +55,7 @@ static int	smcphy_attach(device_t);
 static int	smcphy_service(struct mii_softc *, struct mii_data *, int);
 static void	smcphy_reset(struct mii_softc *);
 static void	smcphy_auto(struct mii_softc *, int);
+static void	smcphy_status(struct mii_softc *);
 
 static device_method_t smcphy_methods[] = {
 	/* device interface */
@@ -76,13 +77,20 @@ static driver_t smcphy_driver = {
 DRIVER_MODULE(smcphy, miibus, smcphy_driver, smcphy_devclass, 0, 0);
 
 static const struct mii_phydesc smcphys[] = {
+	MII_PHY_DESC(SEEQ, 80220),
 	MII_PHY_DESC(SEEQ, 84220),
 	MII_PHY_END
 };
 
+static const struct mii_phy_funcs smcphy80220_funcs = {
+	smcphy_service,
+	smcphy_status,
+	mii_phy_reset
+};
+
 static const struct mii_phy_funcs smcphy_funcs = {
 	smcphy_service,
-	ukphy_status,	
+	smcphy_status,
 	smcphy_reset
 };
 
@@ -97,11 +105,16 @@ static int
 smcphy_attach(device_t dev)
 {
 	struct mii_softc *sc;
+	struct mii_attach_args *ma;
+	const struct mii_phy_funcs *mpf;
 
 	sc = device_get_softc(dev);
-
-	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
-	    &smcphy_funcs, 1);
+	ma = device_get_ivars(dev);
+	if (MII_MODEL(ma->mii_id2) == MII_MODEL_SEEQ_80220)
+		mpf = &smcphy80220_funcs;
+	else
+		mpf = &smcphy_funcs;
+	mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE, mpf, 1);
 	mii_phy_setmedia(sc);
 
 	return (0);
@@ -214,3 +227,46 @@ smcphy_auto(struct mii_softc *sc, int media)
 	anar = PHY_READ(sc, MII_ANAR);
 	PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG);
 }
+
+static void
+smcphy_status(struct mii_softc *sc)
+{
+	struct mii_data *mii;
+	uint32_t bmcr, bmsr, status;
+
+	mii = sc->mii_pdata;
+	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) != 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;
+		}
+	}
+
+	status = PHY_READ(sc, 0x12);
+	if (status & 0x0080)
+		mii->mii_media_active |= IFM_100_TX;
+	else
+		mii->mii_media_active |= IFM_10_T;
+	if (status & 0x0040)
+		mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc);
+	else
+		mii->mii_media_active |= IFM_HDX;
+}
-- 
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