/* $NetBSD: jmphy.c,v 1.4.24.1 2023/06/21 22:11:29 martin Exp $ */ /* $OpenBSD: jmphy.c,v 1.6 2015/03/14 03:38:48 jsg Exp $ */ /*- * Copyright (c) 2008, Pyun YongHyeon * 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 unmodified, 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 AUTHOR 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 AUTHOR 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. * * $FreeBSD: src/sys/dev/mii/jmphy.c,v 1.1 2008/05/27 01:16:40 yongari Exp $ * $DragonFly: src/sys/dev/netif/mii_layer/jmphy.c,v 1.1 2008/07/22 11:28:49 sephe Exp $ */ /* * Driver for the JMicron JMP211 10/100/1000, JMP202 10/100 PHY. */ #include #include #include #include #include #include #include #include #include #include static int jmphy_service(struct mii_softc *, struct mii_data *, int); static void jmphy_status(struct mii_softc *); static int jmphy_match(device_t, cfdata_t, void *); static void jmphy_attach(device_t, device_t, void *); static void jmphy_reset(struct mii_softc *); static uint16_t jmphy_anar(struct ifmedia_entry *); static int jmphy_auto(struct mii_softc *, struct ifmedia_entry *); static const struct mii_phy_funcs jmphy_funcs = { jmphy_service, jmphy_status, jmphy_reset, }; CFATTACH_DECL_NEW(jmphy, sizeof (struct mii_softc), jmphy_match, jmphy_attach, mii_phy_detach, mii_phy_activate); static const struct mii_phydesc jmphys[] = { MII_PHY_DESC(JMICRON, JMP202), MII_PHY_DESC(JMICRON, JMP211), MII_PHY_END, }; static int jmphy_match(device_t parent, cfdata_t match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, jmphys) != NULL) return 10; return 0; } static void jmphy_attach(device_t parent, device_t self, void *aux) { struct mii_softc *sc = device_private(self); struct mii_attach_args *ma = aux; struct mii_data *mii = ma->mii_data; const struct mii_phydesc *mpd; mpd = mii_phy_match(ma, jmphys); aprint_naive(": Media interface\n"); aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); sc->mii_dev = self; sc->mii_inst = mii->mii_instance; sc->mii_phy = ma->mii_phyno; sc->mii_funcs = &jmphy_funcs; sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); sc->mii_mpd_model = MII_MODEL(ma->mii_id2); sc->mii_mpd_rev = MII_REV(ma->mii_id2); sc->mii_pdata = mii; sc->mii_flags = ma->mii_flags; sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP; mii_lock(mii); PHY_RESET(sc); PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); sc->mii_capabilities &= ma->mii_capmask; if (sc->mii_capabilities & BMSR_EXTSTAT) PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); mii_unlock(mii); mii_phy_add_media(sc); } static int jmphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; uint16_t bmcr, ssr; KASSERT(mii_locked(mii)); 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) { PHY_READ(sc, MII_BMCR, &bmcr); PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); return 0; } /* If the interface is not up, don't do anything. */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) break; if (jmphy_auto(sc, ife) != EJUSTRETURN) 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 for link. */ PHY_READ(sc, JMPHY_SSR, &ssr); if (ssr & JMPHY_SSR_LINK_UP) { sc->mii_ticks = 0; break; } /* Announce link loss right after it happens. */ if (sc->mii_ticks++ == 0) break; if (sc->mii_ticks < sc->mii_anegticks) return 0; sc->mii_ticks = 0; jmphy_auto(sc, ife); break; } /* Update the media status. */ jmphy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return 0; } static void jmphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; uint16_t bmcr, ssr, gtsr; KASSERT(mii_locked(mii)); mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; PHY_READ(sc, JMPHY_SSR, &ssr); if ((ssr & JMPHY_SSR_LINK_UP) != 0) mii->mii_media_status |= IFM_ACTIVE; PHY_READ(sc, MII_BMCR, &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 ((ssr & JMPHY_SSR_SPD_DPLX_RESOLVED) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } switch ((ssr & JMPHY_SSR_SPEED_MASK)) { case JMPHY_SSR_SPEED_1000: mii->mii_media_active |= IFM_1000_T; /* * jmphy(4) got a valid link so reset mii_ticks. * Resetting mii_ticks is needed in order to * detect link loss after auto-negotiation. */ sc->mii_ticks = 0; break; case JMPHY_SSR_SPEED_100: mii->mii_media_active |= IFM_100_TX; sc->mii_ticks = 0; break; case JMPHY_SSR_SPEED_10: mii->mii_media_active |= IFM_10_T; sc->mii_ticks = 0; break; default: mii->mii_media_active |= IFM_NONE; return; } if ((ssr & JMPHY_SSR_DUPLEX) != 0) mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc); else mii->mii_media_active |= IFM_HDX; if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { PHY_READ(sc, MII_GTSR, >sr); if ((gtsr & GTSR_MS_RES) != 0) mii->mii_media_active |= IFM_ETH_MASTER; } } static void jmphy_reset(struct mii_softc *sc) { int i; uint16_t val; KASSERT(mii_locked(sc->mii_pdata)); /* Disable sleep mode. */ PHY_READ(sc, JMPHY_TMCTL, &val); PHY_WRITE(sc, JMPHY_TMCTL, val & ~JMPHY_TMCTL_SLEEP_ENB); PHY_READ(sc, MII_BMCR, &val); PHY_WRITE(sc, MII_BMCR, val | BMCR_RESET); for (i = 0; i < 1000; i++) { DELAY(1); PHY_READ(sc, MII_BMCR, &val); if ((val & BMCR_RESET) == 0) break; } } static uint16_t jmphy_anar(struct ifmedia_entry *ife) { uint16_t anar; anar = 0; switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: anar |= ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10; break; case IFM_1000_T: break; case IFM_100_TX: anar |= ANAR_TX | ANAR_TX_FD; break; case IFM_10_T: anar |= ANAR_10 | ANAR_10_FD; break; default: break; } return anar; } static int jmphy_auto(struct mii_softc *sc, struct ifmedia_entry *ife) { uint16_t anar, bmcr, gig; KASSERT(mii_locked(sc->mii_pdata)); gig = 0; PHY_READ(sc, MII_BMCR, &bmcr); switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; break; case IFM_1000_T: gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; break; case IFM_100_TX: case IFM_10_T: break; case IFM_NONE: PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO | BMCR_PDOWN); return EJUSTRETURN; default: return EINVAL; } if ((ife->ifm_media & IFM_LOOP) != 0) bmcr |= BMCR_LOOP; anar = jmphy_anar(ife); if (sc->mii_flags & MIIF_DOPAUSE) anar |= ANAR_PAUSE_TOWARDS; if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) { #ifdef notyet struct mii_data *mii; mii = sc->mii_pdata; if ((mii->mii_media.ifm_media & IFM_ETH_MASTER) != 0) gig |= GTCR_MAN_MS | GTCR_MAN_ADV; #endif PHY_WRITE(sc, MII_100T2CR, gig); } PHY_WRITE(sc, MII_ANAR, anar | ANAR_CSMA); PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_AUTOEN | BMCR_STARTNEG); return EJUSTRETURN; }