/* $NetBSD: dl10019.c,v 1.14.2.1 2021/07/03 10:18:16 martin Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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 __KERNEL_RCSID(0, "$NetBSD: dl10019.c,v 1.14.2.1 2021/07/03 10:18:16 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int dl10019_mii_readreg(device_t, int, int, uint16_t *); int dl10019_mii_writereg(device_t, int, int, uint16_t); void dl10019_mii_statchg(struct ifnet *); /* * MII bit-bang glue. */ u_int32_t dl10019_mii_bitbang_read(device_t); void dl10019_mii_bitbang_write(device_t, u_int32_t); const struct mii_bitbang_ops dl10019_mii_bitbang_ops = { dl10019_mii_bitbang_read, dl10019_mii_bitbang_write, { DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */ DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */ DL0_GPIO_MII_CLK, /* MII_BIT_MDC */ DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */ 0, /* MII_BIT_DIR_PHY_HOST */ } }; const struct mii_bitbang_ops dl10022_mii_bitbang_ops = { dl10019_mii_bitbang_read, dl10019_mii_bitbang_write, { DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */ DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */ DL0_GPIO_MII_CLK, /* MII_BIT_MDC */ DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */ 0, /* MII_BIT_DIR_PHY_HOST */ } }; static void dl10019_mii_reset(struct dp8390_softc *sc) { struct ne2000_softc *nsc = (void *) sc; int i; if (nsc->sc_type != NE2000_TYPE_DL10022) return; for (i = 0; i < 2; i++) { bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x08); delay(1); bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x0c); delay(1); } bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00); } void dl10019_media_init(struct dp8390_softc *sc) { struct ifnet *ifp = &sc->sc_ec.ec_if; struct mii_data *mii = &sc->sc_mii; sc->sc_ec.ec_mii = mii; mii->mii_ifp = ifp; mii->mii_readreg = dl10019_mii_readreg; mii->mii_writereg = dl10019_mii_writereg; mii->mii_statchg = dl10019_mii_statchg; ifmedia_init(&mii->mii_media, IFM_IMASK, dp8390_mediachange, dp8390_mediastatus); dl10019_mii_reset(sc); mii_attach(sc->sc_dev, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); if (LIST_FIRST(&mii->mii_phys) == NULL) { ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); } else ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); } void dl10019_media_fini(struct dp8390_softc *sc) { mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); } int dl10019_mediachange(struct dp8390_softc *sc) { int rc; if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO) return 0; return rc; } void dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr) { mii_pollstat(&sc->sc_mii); ifmr->ifm_status = sc->sc_mii.mii_media_status; ifmr->ifm_active = sc->sc_mii.mii_media_active; } void dl10019_init_card(struct dp8390_softc *sc) { dl10019_mii_reset(sc); mii_mediachg(&sc->sc_mii); } void dl10019_stop_card(struct dp8390_softc *sc) { mii_down(&sc->sc_mii); } u_int32_t dl10019_mii_bitbang_read(device_t self) { struct dp8390_softc *sc = device_private(self); /* We're already in Page 0. */ return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) & ~DL0_GPIO_PRESERVE); } void dl10019_mii_bitbang_write(device_t self, u_int32_t val) { struct dp8390_softc *sc = device_private(self); u_int8_t gpio; /* We're already in Page 0. */ gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO); bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE)); } int dl10019_mii_readreg(device_t self, int phy, int reg, uint16_t *val) { struct ne2000_softc *nsc = device_private(self); const struct mii_bitbang_ops *ops; ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; return mii_bitbang_readreg(self, ops, phy, reg, val); } int dl10019_mii_writereg(device_t self, int phy, int reg, uint16_t val) { struct ne2000_softc *nsc = device_private(self); const struct mii_bitbang_ops *ops; ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; return mii_bitbang_writereg(self, ops, phy, reg, val); } void dl10019_mii_statchg(struct ifnet *ifp) { struct ne2000_softc *nsc = ifp->if_softc; struct dp8390_softc *sc = &nsc->sc_dp8390; /* * Disable collision detection on the DL10022 if * we are on a full-duplex link. */ if (nsc->sc_type == NE2000_TYPE_DL10022) { u_int8_t diag; if (sc->sc_mii.mii_media_active & IFM_FDX) diag = DL0_DIAG_NOCOLLDETECT; else diag = 0; bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_DIAG, diag); } }