/* * Copyright (c) 2000 * Bill Paul . 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: src/sys/dev/mii/xmphy.c,v 1.1.2.5 2002/11/08 21:53:49 semenu Exp $ * $DragonFly: src/sys/dev/netif/mii_layer/xmphy.c,v 1.11 2008/07/22 10:59:16 sephe Exp $ */ /* * driver for the XaQti XMAC II's internal PHY. This is sort of * like a 10/100 PHY, except the only thing we're really autoselecting * here is full/half duplex. Speed is always 1000mbps. */ #include #include #include #include #include #include #include #include #include "mii.h" #include "miivar.h" #include "miidevs.h" #include "xmphyreg.h" #include "miibus_if.h" static int xmphy_probe (device_t); static int xmphy_attach (device_t); static device_method_t xmphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, xmphy_probe), DEVMETHOD(device_attach, xmphy_attach), DEVMETHOD(device_detach, ukphy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), { 0, 0 } }; static const struct mii_phydesc xmphys[] = { MII_PHYDESC(xxXAQTI, XMACII), MII_PHYDESC(JATO, BASEX), MII_PHYDESC_NULL }; static devclass_t xmphy_devclass; static driver_t xmphy_driver = { "xmphy", xmphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(xmphy, miibus, xmphy_driver, xmphy_devclass, 0, 0); static int xmphy_service(struct mii_softc *, struct mii_data *, int); static void xmphy_status(struct mii_softc *); static int xmphy_mii_phy_auto(struct mii_softc *, int); static int xmphy_probe(device_t dev) { struct mii_attach_args *ma = device_get_ivars(dev); const struct mii_phydesc *mpd; mpd = mii_phy_match(ma, xmphys); if (mpd != NULL) { device_set_desc(dev, mpd->mpd_name); return (0); } return (ENXIO); } static int xmphy_attach(device_t dev) { struct mii_softc *sc; struct mii_attach_args *ma; struct mii_data *mii; const char *sep = ""; sc = device_get_softc(dev); ma = device_get_ivars(dev); mii_softc_init(sc, ma); 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_service = xmphy_service; sc->mii_reset = mii_phy_reset; sc->mii_pdata = mii; sc->mii_flags |= MIIF_NOISOLATE; mii->mii_instance++; #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) #define PRINT(s) kprintf("%s%s", sep, s); sep = ", " ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), BMCR_ISO); #if 0 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst), BMCR_LOOP|BMCR_S100); #endif mii_phy_reset(sc); device_printf(dev, " "); ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, 0, sc->mii_inst), XMPHY_BMCR_FDX); PRINT("1000baseSX"); ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst), 0); PRINT("1000baseSX-FDX"); ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0); PRINT("auto"); kprintf("\n"); #undef ADD #undef PRINT MIIBUS_MEDIAINIT(sc->mii_dev); return(0); } int xmphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int reg; 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) { reg = PHY_READ(sc, MII_BMCR); PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); return (0); } /* * If the interface is not up, don't do anything. */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) break; switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: #ifdef foo /* * If we're already in auto mode, just return. */ if (PHY_READ(sc, XMPHY_MII_BMCR) & XMPHY_BMCR_AUTOEN) return (0); #endif xmphy_mii_phy_auto(sc, 1); break; case IFM_1000_SX: mii_phy_reset(sc); if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) { PHY_WRITE(sc, XMPHY_MII_ANAR, XMPHY_ANAR_FDX); PHY_WRITE(sc, XMPHY_MII_BMCR, XMPHY_BMCR_FDX); } else { PHY_WRITE(sc, XMPHY_MII_ANAR, XMPHY_ANAR_HDX); PHY_WRITE(sc, XMPHY_MII_BMCR, 0); } break; case IFM_100_T4: case IFM_100_TX: case IFM_10_T: default: return (EINVAL); } break; case MII_TICK: /* * If we're not currently selected, just return. */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) return (0); /* * Is the interface even up? */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) return (0); /* * Only used for autonegotiation. */ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) break; /* * Check to see if we have link. If we do, we don't * need to restart the autonegotiation process. Read * the BMSR twice in case it's latched. */ reg = PHY_READ(sc, XMPHY_MII_BMSR) | PHY_READ(sc, XMPHY_MII_BMSR); if (reg & XMPHY_BMSR_LINK) { sc->mii_ticks = 0; break; } /* * Only retry autonegotiation every mii_anegticks seconds. */ if (++sc->mii_ticks <= sc->mii_anegticks) return (0); sc->mii_ticks = 0; mii_phy_reset(sc); if (xmphy_mii_phy_auto(sc, 0) == EJUSTRETURN) return(0); break; } /* Update the media status. */ xmphy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } void xmphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; int bmsr, bmcr, anlpar; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, XMPHY_MII_BMSR) | PHY_READ(sc, XMPHY_MII_BMSR); if (bmsr & XMPHY_BMSR_LINK) mii->mii_media_status |= IFM_ACTIVE; /* Do dummy read of extended status register. */ bmcr = PHY_READ(sc, XMPHY_MII_EXTSTS); bmcr = PHY_READ(sc, XMPHY_MII_BMCR); if (bmcr & XMPHY_BMCR_LOOP) mii->mii_media_active |= IFM_LOOP; if (bmcr & XMPHY_BMCR_AUTOEN) { if ((bmsr & XMPHY_BMSR_ACOMP) == 0) { if (bmsr & XMPHY_BMSR_LINK) { mii->mii_media_active |= IFM_1000_SX|IFM_HDX; return; } /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } mii->mii_media_active |= IFM_1000_SX; anlpar = PHY_READ(sc, XMPHY_MII_ANAR) & PHY_READ(sc, XMPHY_MII_ANLPAR); if (anlpar & XMPHY_ANLPAR_FDX) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; return; } mii->mii_media_active |= IFM_1000_SX; if (bmcr & XMPHY_BMCR_FDX) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; } static int xmphy_mii_phy_auto(struct mii_softc *sc, int waitfor) { int bmsr, anar = 0, i; anar = PHY_READ(sc, XMPHY_MII_ANAR); anar |= XMPHY_ANAR_FDX | XMPHY_ANAR_HDX; PHY_WRITE(sc, XMPHY_MII_ANAR, anar); DELAY(1000); PHY_WRITE(sc, XMPHY_MII_BMCR, XMPHY_BMCR_AUTOEN | XMPHY_BMCR_STARTNEG); if (waitfor) { /* Wait 500ms for it to complete. */ for (i = 0; i < 500; i++) { bmsr = PHY_READ(sc, XMPHY_MII_BMSR); if (bmsr & XMPHY_BMSR_ACOMP) return (0); DELAY(1000); } return (EIO); } return (EJUSTRETURN); }