1 /* $OpenBSD: acphy.c,v 1.1 2003/08/12 19:42:37 mickey Exp $ */ 2 /* $NetBSD: acphy.c,v 1.13 2003/04/29 01:49:33 thorpej Exp $ */ 3 4 /* 5 * Copyright 2001 Wasabi Systems, Inc. 6 * All rights reserved. 7 * 8 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed for the NetBSD Project by 21 * Wasabi Systems, Inc. 22 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 23 * or promote products derived from this software without specific prior 24 * written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Driver for the Altima AC101 PHY. 41 */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/device.h> 47 #include <sys/socket.h> 48 #include <sys/errno.h> 49 50 #include <net/if.h> 51 #include <net/if_media.h> 52 53 #include <dev/mii/mii.h> 54 #include <dev/mii/miivar.h> 55 #include <dev/mii/miidevs.h> 56 57 #include <dev/mii/acphyreg.h> 58 59 int acphymatch(struct device *, void *, void *); 60 void acphyattach(struct device *, struct device *, void *); 61 62 struct cfattach acphy_ca = { 63 sizeof(struct mii_softc), acphymatch, acphyattach, mii_phy_detach, 64 mii_phy_activate 65 }; 66 67 struct cfdriver acphy_cd = { 68 NULL, "acphy", DV_DULL 69 }; 70 71 int acphy_service(struct mii_softc *, struct mii_data *, int); 72 void acphy_status(struct mii_softc *); 73 74 int 75 acphymatch(struct device *parent, void *match, void *aux) 76 { 77 struct mii_attach_args *ma = aux; 78 79 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 80 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101) 81 return (10); 82 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA && 83 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101L) 84 return (10); 85 86 return (0); 87 } 88 89 void 90 acphyattach(struct device *parent, struct device *self, void *aux) 91 { 92 struct mii_softc *sc = (struct mii_softc *)self; 93 struct mii_attach_args *ma = aux; 94 struct mii_data *mii = ma->mii_data; 95 96 printf(": %s, rev. %d\n", MII_STR_xxALTIMA_AC101, MII_REV(ma->mii_id2)); 97 98 sc->mii_inst = mii->mii_instance; 99 sc->mii_phy = ma->mii_phyno; 100 sc->mii_service = acphy_service; 101 sc->mii_status = acphy_status; 102 sc->mii_pdata = mii; 103 sc->mii_flags = ma->mii_flags; 104 sc->mii_anegticks = 5; 105 106 mii_phy_reset(sc); 107 108 /* 109 * XXX Check MCR_FX_SEL to set MIIF_HAVE_FIBER? 110 */ 111 112 sc->mii_capabilities = 113 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 114 115 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 116 if (sc->mii_flags & MIIF_HAVEFIBER) { 117 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), 118 MII_MEDIA_100_TX); 119 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), 120 MII_MEDIA_100_TX); 121 } 122 #undef ADD 123 124 if (sc->mii_capabilities & BMSR_MEDIAMASK) 125 mii_phy_add_media(sc); 126 } 127 128 int 129 acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 130 { 131 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 132 int reg; 133 134 switch (cmd) { 135 case MII_POLLSTAT: 136 /* 137 * If we're not polling our PHY instance, just return. 138 */ 139 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 140 return (0); 141 break; 142 143 case MII_MEDIACHG: 144 /* 145 * If the media indicates a different PHY instance, 146 * isolate ourselves. 147 */ 148 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 149 reg = PHY_READ(sc, MII_BMCR); 150 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 151 return (0); 152 } 153 154 /* 155 * If the interface is not up, don't do anything. 156 */ 157 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 158 break; 159 160 mii_phy_setmedia(sc); 161 break; 162 163 case MII_TICK: 164 /* 165 * If we're not currently selected, just return. 166 */ 167 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 168 return (0); 169 170 if (mii_phy_tick(sc) == EJUSTRETURN) 171 return (0); 172 break; 173 174 case MII_DOWN: 175 mii_phy_down(sc); 176 return (0); 177 } 178 179 /* Update the media status. */ 180 mii_phy_status(sc); 181 182 /* Callback if something changed. */ 183 mii_phy_update(sc, cmd); 184 return (0); 185 } 186 187 void 188 acphy_status(struct mii_softc *sc) 189 { 190 struct mii_data *mii = sc->mii_pdata; 191 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 192 int bmsr, bmcr, dr; 193 194 mii->mii_media_status = IFM_AVALID; 195 mii->mii_media_active = IFM_ETHER; 196 197 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 198 dr = PHY_READ(sc, MII_ACPHY_DR); 199 200 if (bmsr & BMSR_LINK) 201 mii->mii_media_status |= IFM_ACTIVE; 202 203 bmcr = PHY_READ(sc, MII_BMCR); 204 if (bmcr & BMCR_ISO) { 205 mii->mii_media_active |= IFM_NONE; 206 mii->mii_media_status = 0; 207 return; 208 } 209 210 if (bmcr & BMCR_LOOP) 211 mii->mii_media_active |= IFM_LOOP; 212 213 if (bmcr & BMCR_AUTOEN) { 214 /* 215 * The media status bits are only valid if autonegotiation 216 * has completed (or it's disabled). 217 */ 218 if ((bmsr & BMSR_ACOMP) == 0) { 219 /* Erg, still trying, I guess... */ 220 mii->mii_media_active |= IFM_NONE; 221 return; 222 } 223 224 if (dr & DR_SPEED) 225 mii->mii_media_active |= IFM_100_TX; 226 else 227 mii->mii_media_active |= IFM_10_T; 228 if (dr & DR_DPLX) 229 mii->mii_media_active |= IFM_FDX; 230 } else 231 mii->mii_media_active = ife->ifm_media; 232 } 233