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IABSD.fr/src/sys/dev/mii/jmphy.c
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- sys/dev/mii/jmphy.c
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/* $OpenBSD: jmphy.c,v 1.6 2015/03/14 03:38:48 jsg Exp $ */ /*- * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org> * 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 <sys/param.h> #include <sys/systm.h> #include <sys/device.h> #include <sys/socket.h> #include <net/if.h> #include <net/if_var.h> #include <net/if_media.h> #include <dev/mii/mii.h> #include <dev/mii/miivar.h> #include <dev/mii/miidevs.h> #include <dev/mii/jmphyreg.h> int jmphy_service(struct mii_softc *, struct mii_data *, int); void jmphy_status(struct mii_softc *); int jmphy_match(struct device *, void *, void *); void jmphy_attach(struct device *, struct device *, void *); void jmphy_reset(struct mii_softc *); uint16_t jmphy_anar(struct ifmedia_entry *); int jmphy_auto(struct mii_softc *, struct ifmedia_entry *); const struct mii_phy_funcs jmphy_funcs = { jmphy_service, jmphy_status, jmphy_reset, }; struct cfattach jmphy_ca = { sizeof (struct mii_softc), jmphy_match, jmphy_attach, mii_phy_detach }; struct cfdriver jmphy_cd = { NULL, "jmphy", DV_DULL }; static const struct mii_phydesc jmphys[] = { { MII_OUI_JMICRON, MII_MODEL_JMICRON_JMP202, MII_STR_JMICRON_JMP202 }, { MII_OUI_JMICRON, MII_MODEL_JMICRON_JMP211, MII_STR_JMICRON_JMP211 }, { 0, 0, NULL }, }; int jmphy_match(struct device *parent, void *match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, jmphys) != NULL) return (10); return (0); } void jmphy_attach(struct device *parent, struct device *self, void *aux) { struct mii_softc *sc = (struct mii_softc *)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); printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); sc->mii_inst = mii->mii_instance; sc->mii_phy = ma->mii_phyno; sc->mii_funcs = &jmphy_funcs; sc->mii_model = MII_MODEL(ma->mii_id2); sc->mii_pdata = mii; sc->mii_flags = ma->mii_flags; sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP; PHY_RESET(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; if (sc->mii_capabilities & BMSR_EXTSTAT) sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) ; else mii_phy_add_media(sc); } 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; 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) { bmcr = PHY_READ(sc, MII_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. */ if (PHY_READ(sc, JMPHY_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); } void jmphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; int bmcr, ssr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; ssr = PHY_READ(sc, JMPHY_SSR); if ((ssr & JMPHY_SSR_LINK_UP) != 0) mii->mii_media_status |= IFM_ACTIVE; bmcr = PHY_READ(sc, MII_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) { if ((PHY_READ(sc, MII_100T2SR) & GTSR_MS_RES) != 0) mii->mii_media_active |= IFM_ETH_MASTER; } } void jmphy_reset(struct mii_softc *sc) { int i; /* Disable sleep mode. */ PHY_WRITE(sc, JMPHY_TMCTL, PHY_READ(sc, JMPHY_TMCTL) & ~JMPHY_TMCTL_SLEEP_ENB); PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN); for (i = 0; i < 1000; i++) { DELAY(1); if ((PHY_READ(sc, MII_BMCR) & BMCR_RESET) == 0) break; } } 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); } int jmphy_auto(struct mii_softc *sc, struct ifmedia_entry *ife) { uint16_t anar, bmcr, gig; gig = 0; bmcr = PHY_READ(sc, MII_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); }