From 129bcaac66218ececb8d6d76d5d40e1f5c71b85c Mon Sep 17 00:00:00 2001
From: aaron <aaron@openbsd.org>
Date: Fri, 17 Mar 2000 01:27:13 +0000
Subject: [PATCH] Sync with FreeBSD. Also, fix a stupid bug where the dc driver
 was claiming all PCI interrupts (kind of a bad thing, noticed by jason@);
 from jason@

---
 sys/dev/pci/if_dc.c    | 89 ++++++++++++++++++++++++++++++++----------
 sys/dev/pci/if_dcreg.h | 11 +++++-
 2 files changed, 78 insertions(+), 22 deletions(-)

diff --git a/sys/dev/pci/if_dc.c b/sys/dev/pci/if_dc.c
index 9b11f32df79..91e91f7a2db 100644
--- a/sys/dev/pci/if_dc.c
+++ b/sys/dev/pci/if_dc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_dc.c,v 1.10 2000/02/15 02:28:14 jason Exp $	*/
+/*	$OpenBSD: if_dc.c,v 1.11 2000/03/17 01:27:13 aaron Exp $	*/
 
 /*
  * Copyright (c) 1997, 1998, 1999
@@ -31,7 +31,7 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  *
- * $FreeBSD: src/sys/pci/if_dc.c,v 1.5 2000/01/12 22:24:05 wpaul Exp $
+ * $FreeBSD: src/sys/pci/if_dc.c,v 1.8 2000/03/09 19:28:19 rwatson Exp $
  */
 
 /*
@@ -701,9 +701,10 @@ int dc_miibus_readreg(self, phy, reg)
 
 	frame.mii_phyaddr = phy;
 	frame.mii_regaddr = reg;
-	DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
+	phy_reg = CSR_READ_4(sc, DC_NETCFG);
+	CSR_WRITE_4(sc, DC_NETCFG, phy_reg & ~DC_NETCFG_PORTSEL);
 	dc_mii_readreg(sc, &frame);
-	DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
+	CSR_WRITE_4(sc, DC_NETCFG, phy_reg);
 
 	return(frame.mii_data);
 }
@@ -769,24 +770,32 @@ void dc_miibus_writereg(self, phy, reg, data)
 	frame.mii_regaddr = reg;
 	frame.mii_data = data;
 
-	DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
+	phy_reg = CSR_READ_4(sc, DC_NETCFG);
+	CSR_WRITE_4(sc, DC_NETCFG, phy_reg & ~DC_NETCFG_PORTSEL);
 	dc_mii_writereg(sc, &frame);
-	DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
+	CSR_WRITE_4(sc, DC_NETCFG, phy_reg);
 
 	return;
 }
 
 void dc_miibus_statchg(self)
-	struct device		*self;
+	struct device *self;
 {
-	struct dc_softc		*sc = (struct dc_softc *)self;
-	struct mii_data		*mii;
+	struct dc_softc *sc = (struct dc_softc *)self;
+	struct mii_data *mii;
+	struct ifmedia *ifm;
 
 	if (DC_IS_ADMTEK(sc))
 		return;
 	mii = &sc->sc_mii;
-	dc_setcfg(sc, mii->mii_media_active);
-	sc->dc_if_media = mii->mii_media_active;
+	ifm = &mii->mii_media;
+	if (DC_IS_DAVICOM(sc) && IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1) {
+		dc_setcfg(sc, ifm->ifm_media);
+		sc->dc_if_media = ifm->ifm_media;
+	} else {
+		dc_setcfg(sc, mii->mii_media_active);
+		sc->dc_if_media = mii->mii_media_active;
+	}
 
 	return;
 }
@@ -1110,7 +1119,8 @@ void dc_setcfg(sc, media)
 			if (sc->dc_type == DC_TYPE_98713)
 				DC_SETBIT(sc, DC_NETCFG, (DC_NETCFG_PCS|
 				    DC_NETCFG_SCRAMBLER));
-			DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
+			if (!DC_IS_DAVICOM(sc))
+				DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
 			DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF);
 		} else {
 			if (DC_IS_PNIC(sc)) {
@@ -1132,7 +1142,8 @@ void dc_setcfg(sc, media)
 			    DC_NETCFG_PORTSEL|DC_NETCFG_SCRAMBLER));
 			if (sc->dc_type == DC_TYPE_98713)
 				DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PCS);
-			DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
+			if (!DC_IS_DAVICOM(sc))
+				DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
 			DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF);
 		} else {
 			if (DC_IS_PNIC(sc)) {
@@ -1146,6 +1157,20 @@ void dc_setcfg(sc, media)
 		}
 	}
 
+	/*
+	 * If this is a Davicom DM9102A card with a DM9801 HomePNA
+	 * PHY and we want HomePNA mode, set the portsel bit to turn
+	 * on the external MII port.
+	 */
+	if (DC_IS_DAVICOM(sc)) {
+		if (IFM_SUBTYPE(media) == IFM_HPNA_1) {
+			DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
+			sc->dc_link = 1;
+		} else {
+			DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
+		}
+	}
+
 	if ((media & IFM_GMASK) == IFM_FDX) {
 		DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_FULLDUPLEX);
 		if (sc->dc_pmode == DC_PMODE_SYM && DC_IS_PNIC(sc))
@@ -1455,7 +1480,11 @@ void dc_attach(parent, self, aux)
 	}
 
 	/* Save the cache line size. */
-	sc->dc_cachesize = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFLT) & 0xFF;
+	if (DC_IS_DAVICOM(sc))
+		sc->dc_cachesize = 0;
+	else
+		sc->dc_cachesize = pci_conf_read(pc, pa->pa_tag,
+		    DC_PCI_CFLT) & 0xFF;
 
 	/* Reset the adapter. */
 	dc_reset(sc);
@@ -1577,6 +1606,9 @@ void dc_attach(parent, self, aux)
 	} else
 		ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
 
+	if (DC_IS_DAVICOM(sc) && revision >= DC_REVISION_DM9102A)
+		ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_HPNA_1,0,NULL);
+
 	/* if (error && DC_IS_INTEL(sc)) {
 		sc->dc_pmode = DC_PMODE_SYM;
 		mii_phy_probe(dev, &sc->dc_miibus,
@@ -2137,16 +2169,16 @@ int dc_intr(arg)
 	if (!(ifp->if_flags & IFF_UP)) {
 		if (CSR_READ_4(sc, DC_ISR) & DC_INTRS)
 			dc_stop(sc);
-		return claimed;
+		return (claimed);
 	}
 
-	claimed = 1;
-
 	/* Disable interrupts. */
 	CSR_WRITE_4(sc, DC_IMR, 0x00000000);
 
 	while((status = CSR_READ_4(sc, DC_ISR)) & DC_INTRS) {
 
+		claimed = 1;
+
 		CSR_WRITE_4(sc, DC_ISR, status);
 		if ((status & DC_INTRS) == 0) {
 			claimed = 0;
@@ -2219,7 +2251,7 @@ int dc_intr(arg)
 	if (ifp->if_snd.ifq_head != NULL)
 		dc_start(ifp);
 
-	return claimed;
+	return (claimed);
 }
 
 /*
@@ -2406,7 +2438,7 @@ void dc_init(xsc)
 	/*
 	 * Set cache alignment and burst length.
 	 */
-	if (DC_IS_ASIX(sc))
+	if (DC_IS_ASIX(sc) || DC_IS_DAVICOM(sc))
 		CSR_WRITE_4(sc, DC_BUSCTL, 0);
 	else
 		CSR_WRITE_4(sc, DC_BUSCTL, DC_BUSCTL_MRME|DC_BUSCTL_MRLE);
@@ -2528,11 +2560,19 @@ int dc_ifmedia_upd(ifp)
 {
 	struct dc_softc		*sc;
 	struct mii_data		*mii;
+	struct ifmedia *ifm;
 
 	sc = ifp->if_softc;
 	mii = &sc->sc_mii;
 	mii_mediachg(mii);
-	sc->dc_link = 0;
+
+	ifm = &mii->mii_media;
+
+	if (DC_IS_DAVICOM(sc) &&
+	    IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1)
+		dc_setcfg(sc, ifm->ifm_media);
+	else
+		sc->dc_link = 0;
 
 	return(0);
 }
@@ -2546,10 +2586,19 @@ void dc_ifmedia_sts(ifp, ifmr)
 {
 	struct dc_softc		*sc;
 	struct mii_data		*mii;
+	struct ifmedia		*ifm;
 
 	sc = ifp->if_softc;
 	mii = &sc->sc_mii;
 	mii_pollstat(mii);
+	ifm = &mii->mii_media;
+	if (DC_IS_DAVICOM(sc)) {
+		if (IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1) {
+			ifmr->ifm_active = ifm->ifm_media;
+			ifmr->ifm_status = 0;
+			return;
+		}
+	}
 	ifmr->ifm_active = mii->mii_media_active;
 	ifmr->ifm_status = mii->mii_media_status;
 
diff --git a/sys/dev/pci/if_dcreg.h b/sys/dev/pci/if_dcreg.h
index 0bdfe65c47c..cc3d2bf68cb 100644
--- a/sys/dev/pci/if_dcreg.h
+++ b/sys/dev/pci/if_dcreg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_dcreg.h,v 1.4 2000/01/09 01:20:35 jason Exp $ */
+/*	$OpenBSD: if_dcreg.h,v 1.5 2000/03/17 01:27:14 aaron Exp $ */
 
 /*
  * Copyright (c) 1997, 1998, 1999
@@ -31,7 +31,7 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  *
- * $FreeBSD: src/sys/pci/if_dcreg.h,v 1.2 1999/12/13 21:45:12 wpaul Exp $
+ * $FreeBSD: src/sys/pci/if_dcreg.h,v 1.3 2000/01/19 19:03:08 wpaul Exp $
  */
 
 /*
@@ -709,6 +709,13 @@ struct dc_softc {
 #define DC_REVISION_88140	0x00
 #define DC_REVISION_88141	0x10
 
+/*
+ * The DMA9102A has the same PCI device ID as the DM9102,
+ * but a higher revision code.
+ */
+#define DC_REVISION_DM9102	0x10
+#define DC_REVISION_DM9102A	0x30
+
 /*
  * PCI low memory base and low I/O base register, and
  * other PCI registers.
-- 
2.20.1