Add the if_dc driver and remove all of the al, ax, dm, pn and mx drivers

which it replaces. The new driver supports all of the chips supported
by the ones it replaces, as well as many DEC/Intel 21143 10/100 cards.

This also completes my quest to convert things to miibus and add
Alpha support.

1 files changed, 311 insertions, 0 deletions

diff --git a/sys/dev/dc/pnphy.c b/sys/dev/dc/pnphy.c
new file mode 100644
index 0000000..0f8498e
--- /dev/null
+++ b/sys/dev/dc/pnphy.c
@@ -0,0 +1,311 @@
+/*
+ * Copyright (c) 1997, 1998, 1999
+ *	Bill Paul <wpaul@ee.columbia.edu>.  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, 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 by Bill Paul.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Pseudo-driver for media selection on the Lite-On PNIC 82c168
+ * chip. The NWAY support on this chip is horribly broken, so we
+ * only support manual mode selection. This is lame, but getting
+ * NWAY to work right is amazingly difficult.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/socket.h>
+#include <sys/errno.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_media.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+#include <dev/mii/miidevs.h>
+
+#include <machine/clock.h>
+#include <machine/bus_pio.h>
+#include <machine/bus_memio.h>
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/bus.h>
+
+#include <pci/if_dcreg.h>
+
+#include "miibus_if.h"
+
+#if !defined(lint)
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif
+
+#define DC_SETBIT(sc, reg, x)                           \
+        CSR_WRITE_4(sc, reg,                            \
+                CSR_READ_4(sc, reg) | x)
+
+#define DC_CLRBIT(sc, reg, x)                           \
+        CSR_WRITE_4(sc, reg,                            \
+                CSR_READ_4(sc, reg) & ~x)
+
+static int pnphy_probe		__P((device_t));
+static int pnphy_attach		__P((device_t));
+static int pnphy_detach		__P((device_t));
+
+static device_method_t pnphy_methods[] = {
+	/* device interface */
+	DEVMETHOD(device_probe,		pnphy_probe),
+	DEVMETHOD(device_attach,	pnphy_attach),
+	DEVMETHOD(device_detach,	pnphy_detach),
+	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
+	{ 0, 0 }
+};
+
+static devclass_t pnphy_devclass;
+
+static driver_t pnphy_driver = {
+	"pnphy",
+	pnphy_methods,
+	sizeof(struct mii_softc)
+};
+
+DRIVER_MODULE(pnphy, miibus, pnphy_driver, pnphy_devclass, 0, 0);
+
+int	pnphy_service __P((struct mii_softc *, struct mii_data *, int));
+void	pnphy_status __P((struct mii_softc *));
+
+static int pnphy_probe(dev)
+	device_t		dev;
+{
+	struct mii_attach_args *ma;
+
+	ma = device_get_ivars(dev);
+
+	/*
+	 * The dc driver will report the 82c168 vendor and device
+	 * ID to let us know that it wants us to attach.
+	 */
+	if (ma->mii_id1 != DC_VENDORID_LO ||
+	    ma->mii_id2 != DC_DEVICEID_82C168)
+		return(ENXIO);
+
+	device_set_desc(dev, "PNIC 82c168 media interface");
+
+	return (0);
+}
+
+static int pnphy_attach(dev)
+	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_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 = pnphy_service;
+	sc->mii_pdata = mii;
+
+	sc->mii_flags |= MIIF_NOISOLATE;
+	mii->mii_instance++;
+
+#define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
+
+	sc->mii_capabilities =
+	    BMSR_100TXFDX|BMSR_100TXHDX|BMSR_10TFDX|BMSR_10THDX;
+	sc->mii_capabilities &= ma->mii_capmask;
+	device_printf(dev, " ");
+	if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
+		printf("no media present");
+	else
+		mii_add_media(mii, sc->mii_capabilities, sc->mii_inst);
+	printf("\n");
+	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
+	    BMCR_ISO);
+
+	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
+	    BMCR_LOOP|BMCR_S100);
+
+#undef ADD
+
+	MIIBUS_MEDIAINIT(sc->mii_dev);
+	return(0);
+}
+
+static int pnphy_detach(dev)
+	device_t		dev;
+{
+	struct mii_softc *sc;
+	struct mii_data *mii;
+
+	sc = device_get_softc(dev);
+	mii = device_get_softc(device_get_parent(dev));
+	sc->mii_dev = NULL;
+	LIST_REMOVE(sc, mii_list);
+
+	return(0);
+}
+
+int
+pnphy_service(sc, mii, cmd)
+	struct mii_softc *sc;
+	struct mii_data *mii;
+	int cmd;
+{
+	struct dc_softc		*dc_sc;
+	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+
+	dc_sc = mii->mii_ifp->if_softc;
+
+	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)
+			return (0);
+
+		/*
+		 * If the interface is not up, don't do anything.
+		 */
+		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+			break;
+
+		sc->mii_flags = 0;
+
+		switch (IFM_SUBTYPE(ife->ifm_media)) {
+		case IFM_AUTO:
+			/* NWAY is busted on this chip */
+		case IFM_100_T4:
+			/*
+			 * XXX Not supported as a manual setting right now.
+			 */
+			return (EINVAL);
+		case IFM_100_TX:
+			mii->mii_media_active = IFM_ETHER|IFM_100_TX;
+			if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
+				mii->mii_media_active |= IFM_FDX;
+			MIIBUS_STATCHG(sc->mii_dev);
+			return(0);
+			break;
+		case IFM_10_T:
+			mii->mii_media_active = IFM_ETHER|IFM_10_T;
+			if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
+				mii->mii_media_active |= IFM_FDX;
+			MIIBUS_STATCHG(sc->mii_dev);
+			return(0);
+			break;
+		default:
+			return(EINVAL);
+			break;
+		}
+		break;
+
+	case MII_TICK:
+		/*
+		 * If we're not currently selected, just return.
+		 */
+		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
+			return (0);
+
+		/*
+		 * Only used for autonegotiation.
+		 */
+		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
+			return (0);
+
+		/*
+		 * Is the interface even up?
+		 */
+		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+			return (0);
+
+		return(0);
+	}
+
+	/* Update the media status. */
+	pnphy_status(sc);
+
+	/* Callback if something changed. */
+	if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
+		MIIBUS_STATCHG(sc->mii_dev);
+		sc->mii_active = mii->mii_media_active;
+	}
+	return (0);
+}
+
+void
+pnphy_status(sc)
+	struct mii_softc *sc;
+{
+	struct mii_data *mii = sc->mii_pdata;
+	int reg;
+	struct dc_softc		*dc_sc;
+
+	dc_sc = mii->mii_ifp->if_softc;
+
+	mii->mii_media_status = IFM_AVALID;
+	mii->mii_media_active = IFM_ETHER;
+
+	reg = CSR_READ_4(dc_sc, DC_ISR);
+
+	if (!(reg & DC_ISR_LINKFAIL))
+		mii->mii_media_status |= IFM_ACTIVE;
+
+	if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SPEEDSEL)
+		mii->mii_media_active |= IFM_10_T;
+	else
+		mii->mii_media_active |= IFM_100_TX;
+	if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX)
+		mii->mii_media_active |= IFM_FDX;
+
+	return;
+}