acphy.c revision 1.14
1 /* $NetBSD: acphy.c,v 1.14 2004/08/23 06:16:06 thorpej Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Driver for the Altima AC101 PHY. 40 */ 41 42 #include <sys/cdefs.h> 43 __KERNEL_RCSID(0, "$NetBSD: acphy.c,v 1.14 2004/08/23 06:16:06 thorpej Exp $"); 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/device.h> 49 #include <sys/socket.h> 50 #include <sys/errno.h> 51 52 #include <net/if.h> 53 #include <net/if_media.h> 54 55 #include <dev/mii/mii.h> 56 #include <dev/mii/miivar.h> 57 #include <dev/mii/miidevs.h> 58 59 #include <dev/mii/acphyreg.h> 60 61 static int acphymatch(struct device *, struct cfdata *, void *); 62 static void acphyattach(struct device *, struct device *, void *); 63 64 CFATTACH_DECL(acphy, sizeof(struct mii_softc), 65 acphymatch, acphyattach, mii_phy_detach, mii_phy_activate); 66 67 static int acphy_service(struct mii_softc *, struct mii_data *, int); 68 static void acphy_status(struct mii_softc *); 69 70 static const struct mii_phy_funcs acphy_funcs = { 71 acphy_service, acphy_status, mii_phy_reset, 72 }; 73 74 static const struct mii_phydesc acphys[] = { 75 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_AC101, 76 MII_STR_ALTIMA_AC101 }, 77 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_AC101L, 78 MII_STR_ALTIMA_AC101L }, 79 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_Am79C874, 80 MII_STR_ALTIMA_Am79C874 }, 81 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_Am79C875, 82 MII_STR_ALTIMA_Am79C875 }, 83 84 /* XXX This is reported to work, but it's not from any data sheet. */ 85 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_ACXXX, 86 MII_STR_ALTIMA_ACXXX }, 87 88 { 0, 0, 89 NULL }, 90 }; 91 92 static int 93 acphymatch(struct device *parent, struct cfdata *match, void *aux) 94 { 95 struct mii_attach_args *ma = aux; 96 97 if (mii_phy_match(ma, acphys) != NULL) 98 return (10); 99 100 return (0); 101 } 102 103 static void 104 acphyattach(struct device *parent, struct device *self, void *aux) 105 { 106 struct mii_softc *sc = (struct mii_softc *)self; 107 struct mii_attach_args *ma = aux; 108 struct mii_data *mii = ma->mii_data; 109 const struct mii_phydesc *mpd; 110 111 mpd = mii_phy_match(ma, acphys); 112 aprint_naive(": Media interface\n"); 113 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 114 115 sc->mii_inst = mii->mii_instance; 116 sc->mii_phy = ma->mii_phyno; 117 sc->mii_funcs = &acphy_funcs; 118 sc->mii_pdata = mii; 119 sc->mii_flags = ma->mii_flags; 120 sc->mii_anegticks = 5; 121 122 PHY_RESET(sc); 123 124 /* 125 * XXX Check MCR_FX_SEL to set MIIF_HAVE_FIBER? 126 */ 127 128 sc->mii_capabilities = 129 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 130 aprint_normal("%s: ", sc->mii_dev.dv_xname); 131 132 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 133 if (sc->mii_flags & MIIF_HAVEFIBER) { 134 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), 135 MII_MEDIA_100_TX); 136 aprint_normal("100baseFX, "); 137 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), 138 MII_MEDIA_100_TX); 139 aprint_normal("100baseFX-FDX, "); 140 } 141 #undef ADD 142 143 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 144 aprint_error("no media present"); 145 else 146 mii_phy_add_media(sc); 147 aprint_normal("\n"); 148 } 149 150 static int 151 acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 152 { 153 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 154 int reg; 155 156 switch (cmd) { 157 case MII_POLLSTAT: 158 /* 159 * If we're not polling our PHY instance, just return. 160 */ 161 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 162 return (0); 163 break; 164 165 case MII_MEDIACHG: 166 /* 167 * If the media indicates a different PHY instance, 168 * isolate ourselves. 169 */ 170 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 171 reg = PHY_READ(sc, MII_BMCR); 172 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 173 return (0); 174 } 175 176 /* 177 * If the interface is not up, don't do anything. 178 */ 179 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 180 break; 181 182 mii_phy_setmedia(sc); 183 break; 184 185 case MII_TICK: 186 /* 187 * If we're not currently selected, just return. 188 */ 189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 190 return (0); 191 192 if (mii_phy_tick(sc) == EJUSTRETURN) 193 return (0); 194 break; 195 196 case MII_DOWN: 197 mii_phy_down(sc); 198 return (0); 199 } 200 201 /* Update the media status. */ 202 mii_phy_status(sc); 203 204 /* Callback if something changed. */ 205 mii_phy_update(sc, cmd); 206 return (0); 207 } 208 209 static void 210 acphy_status(struct mii_softc *sc) 211 { 212 struct mii_data *mii = sc->mii_pdata; 213 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 214 int bmsr, bmcr, dr; 215 216 mii->mii_media_status = IFM_AVALID; 217 mii->mii_media_active = IFM_ETHER; 218 219 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 220 dr = PHY_READ(sc, MII_ACPHY_DR); 221 222 if (bmsr & BMSR_LINK) 223 mii->mii_media_status |= IFM_ACTIVE; 224 225 bmcr = PHY_READ(sc, MII_BMCR); 226 if (bmcr & BMCR_ISO) { 227 mii->mii_media_active |= IFM_NONE; 228 mii->mii_media_status = 0; 229 return; 230 } 231 232 if (bmcr & BMCR_LOOP) 233 mii->mii_media_active |= IFM_LOOP; 234 235 if (bmcr & BMCR_AUTOEN) { 236 /* 237 * The media status bits are only valid if autonegotiation 238 * has completed (or it's disabled). 239 */ 240 if ((bmsr & BMSR_ACOMP) == 0) { 241 /* Erg, still trying, I guess... */ 242 mii->mii_media_active |= IFM_NONE; 243 return; 244 } 245 246 if (dr & DR_SPEED) 247 mii->mii_media_active |= IFM_100_TX; 248 else 249 mii->mii_media_active |= IFM_10_T; 250 if (dr & DR_DPLX) 251 mii->mii_media_active |= IFM_FDX; 252 } else 253 mii->mii_media_active = ife->ifm_media; 254 } 255
Indexes created Tue Sep 23 14:10:03 GMT 2025