diff options
Diffstat (limited to 'freebsd/sys/dev/mii/ukphy_subr.c')
| -rw-r--r-- | freebsd/sys/dev/mii/ukphy_subr.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/freebsd/sys/dev/mii/ukphy_subr.c b/freebsd/sys/dev/mii/ukphy_subr.c new file mode 100644 index 00000000..b53ee861 --- /dev/null +++ b/freebsd/sys/dev/mii/ukphy_subr.c @@ -0,0 +1,131 @@ +#include <machine/rtems-bsd-kernel-space.h> + +/* $NetBSD: ukphy_subr.c,v 1.2 1998/11/05 04:08:02 thorpej Exp $ */ + +/*- + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, + * NASA Ames Research Center, and by Frank van der Linden. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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("$FreeBSD$"); + +/* + * Subroutines shared by the ukphy driver and other PHY drivers. + */ + +#include <rtems/bsd/sys/param.h> +#include <sys/systm.h> +#include <sys/socket.h> +#include <sys/module.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 <rtems/bsd/local/miibus_if.h> + +/* + * Media status subroutine. If a PHY driver does media detection simply + * by decoding the NWay autonegotiation, use this routine. + */ +void +ukphy_status(struct mii_softc *phy) +{ + struct mii_data *mii = phy->mii_pdata; + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int bmsr, bmcr, anlpar, gtcr, gtsr; + + mii->mii_media_status = IFM_AVALID; + mii->mii_media_active = IFM_ETHER; + + bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR); + if (bmsr & BMSR_LINK) + mii->mii_media_status |= IFM_ACTIVE; + + bmcr = PHY_READ(phy, MII_BMCR); + if (bmcr & BMCR_ISO) { + mii->mii_media_active |= IFM_NONE; + mii->mii_media_status = 0; + return; + } + + if (bmcr & BMCR_LOOP) + mii->mii_media_active |= IFM_LOOP; + + if (bmcr & BMCR_AUTOEN) { + /* + * NWay autonegotiation takes the highest-order common + * bit of the ANAR and ANLPAR (i.e. best media advertised + * both by us and our link partner). + */ + if ((bmsr & BMSR_ACOMP) == 0) { + /* Erg, still trying, I guess... */ + mii->mii_media_active |= IFM_NONE; + return; + } + + anlpar = PHY_READ(phy, MII_ANAR) & PHY_READ(phy, MII_ANLPAR); + if ((phy->mii_flags & MIIF_HAVE_GTCR) != 0 && + (phy->mii_extcapabilities & + (EXTSR_1000THDX | EXTSR_1000TFDX)) != 0) { + gtcr = PHY_READ(phy, MII_100T2CR); + gtsr = PHY_READ(phy, MII_100T2SR); + } else + gtcr = gtsr = 0; + + if ((gtcr & GTCR_ADV_1000TFDX) && (gtsr & GTSR_LP_1000TFDX)) + mii->mii_media_active |= IFM_1000_T|IFM_FDX; + else if ((gtcr & GTCR_ADV_1000THDX) && + (gtsr & GTSR_LP_1000THDX)) + mii->mii_media_active |= IFM_1000_T|IFM_HDX; + else if (anlpar & ANLPAR_TX_FD) + mii->mii_media_active |= IFM_100_TX|IFM_FDX; + else if (anlpar & ANLPAR_T4) + mii->mii_media_active |= IFM_100_T4|IFM_HDX; + else if (anlpar & ANLPAR_TX) + mii->mii_media_active |= IFM_100_TX|IFM_HDX; + else if (anlpar & ANLPAR_10_FD) + mii->mii_media_active |= IFM_10_T|IFM_FDX; + else if (anlpar & ANLPAR_10) + mii->mii_media_active |= IFM_10_T|IFM_HDX; + else + mii->mii_media_active |= IFM_NONE; + + if ((mii->mii_media_active & IFM_1000_T) != 0 && + (gtsr & GTSR_MS_RES) != 0) + mii->mii_media_active |= IFM_ETH_MASTER; + + if ((mii->mii_media_active & IFM_FDX) != 0) + mii->mii_media_active |= mii_phy_flowstatus(phy); + } else + mii->mii_media_active = ife->ifm_media; +} |