1 /* $OpenBSD: acphy.c,v 1.9 2015/03/14 03:38:47 jsg 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/device.h> 46 #include <sys/socket.h> 47 #include <sys/errno.h> 48 49 #include <net/if.h> 50 #include <net/if_var.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 }; 65 66 struct cfdriver acphy_cd = { 67 NULL, "acphy", DV_DULL 68 }; 69 70 int acphy_service(struct mii_softc *, struct mii_data *, int); 71 void acphy_status(struct mii_softc *); 72 73 const struct mii_phy_funcs acphy_funcs = { 74 acphy_service, acphy_status, mii_phy_reset, 75 }; 76 77 static const struct mii_phydesc acphys[] = { 78 { MII_OUI_xxALTIMA, MII_MODEL_xxALTIMA_AC101, 79 MII_STR_xxALTIMA_AC101 }, 80 { MII_OUI_xxALTIMA, MII_MODEL_xxALTIMA_AC101L, 81 MII_STR_xxALTIMA_AC101L }, 82 { MII_OUI_xxALTIMA, MII_MODEL_xxALTIMA_AC_UNKNOWN, 83 MII_STR_xxALTIMA_AC_UNKNOWN }, 84 85 { 0, 0, 86 NULL }, 87 }; 88 89 int 90 acphymatch(struct device *parent, void *match, void *aux) 91 { 92 struct mii_attach_args *ma = aux; 93 94 if (mii_phy_match(ma, acphys) != NULL) 95 return (10); 96 97 return (0); 98 } 99 100 void 101 acphyattach(struct device *parent, struct device *self, void *aux) 102 { 103 struct mii_softc *sc = (struct mii_softc *)self; 104 struct mii_attach_args *ma = aux; 105 struct mii_data *mii = ma->mii_data; 106 const struct mii_phydesc *mpd; 107 108 mpd = mii_phy_match(ma, acphys); 109 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 110 111 sc->mii_inst = mii->mii_instance; 112 sc->mii_phy = ma->mii_phyno; 113 sc->mii_funcs = &acphy_funcs; 114 sc->mii_pdata = mii; 115 sc->mii_flags = ma->mii_flags; 116 sc->mii_anegticks = MII_ANEGTICKS; 117 118 PHY_RESET(sc); 119 120 /* 121 * XXX Check MCR_FX_SEL to set MIIF_HAVE_FIBER? 122 */ 123 124 sc->mii_capabilities = 125 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 126 127 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 128 if (sc->mii_flags & MIIF_HAVEFIBER) { 129 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), 130 MII_MEDIA_100_TX); 131 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), 132 MII_MEDIA_100_TX); 133 } 134 #undef ADD 135 136 if (sc->mii_capabilities & BMSR_MEDIAMASK) 137 mii_phy_add_media(sc); 138 } 139 140 int 141 acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 142 { 143 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 144 int reg; 145 146 switch (cmd) { 147 case MII_POLLSTAT: 148 /* 149 * If we're not polling our PHY instance, just return. 150 */ 151 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 152 return (0); 153 break; 154 155 case MII_MEDIACHG: 156 /* 157 * If the media indicates a different PHY instance, 158 * isolate ourselves. 159 */ 160 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 161 reg = PHY_READ(sc, MII_BMCR); 162 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 163 return (0); 164 } 165 166 /* 167 * If the interface is not up, don't do anything. 168 */ 169 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 170 break; 171 172 mii_phy_setmedia(sc); 173 break; 174 175 case MII_TICK: 176 /* 177 * If we're not currently selected, just return. 178 */ 179 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 180 return (0); 181 182 if (mii_phy_tick(sc) == EJUSTRETURN) 183 return (0); 184 break; 185 186 case MII_DOWN: 187 mii_phy_down(sc); 188 return (0); 189 } 190 191 /* Update the media status. */ 192 mii_phy_status(sc); 193 194 /* Callback if something changed. */ 195 mii_phy_update(sc, cmd); 196 return (0); 197 } 198 199 void 200 acphy_status(struct mii_softc *sc) 201 { 202 struct mii_data *mii = sc->mii_pdata; 203 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 204 int bmsr, bmcr, dr; 205 206 mii->mii_media_status = IFM_AVALID; 207 mii->mii_media_active = IFM_ETHER; 208 209 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 210 dr = PHY_READ(sc, MII_ACPHY_DR); 211 212 if (bmsr & BMSR_LINK) 213 mii->mii_media_status |= IFM_ACTIVE; 214 215 bmcr = PHY_READ(sc, MII_BMCR); 216 if (bmcr & BMCR_ISO) { 217 mii->mii_media_active |= IFM_NONE; 218 mii->mii_media_status = 0; 219 return; 220 } 221 222 if (bmcr & BMCR_LOOP) 223 mii->mii_media_active |= IFM_LOOP; 224 225 if (bmcr & BMCR_AUTOEN) { 226 /* 227 * The media status bits are only valid if autonegotiation 228 * has completed (or it's disabled). 229 */ 230 if ((bmsr & BMSR_ACOMP) == 0) { 231 /* Erg, still trying, I guess... */ 232 mii->mii_media_active |= IFM_NONE; 233 return; 234 } 235 236 if (dr & DR_SPEED) 237 mii->mii_media_active |= IFM_100_TX; 238 else 239 mii->mii_media_active |= IFM_10_T; 240 241 if (dr & DR_DPLX) 242 mii->mii_media_active |= IFM_FDX; 243 else 244 mii->mii_media_active |= IFM_HDX; 245 } else 246 mii->mii_media_active = ife->ifm_media; 247 } 248