iophy.c revision 1.12
1 /* $NetBSD: iophy.c,v 1.12 2001/05/31 16:02:29 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Manuel Bouyer. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 /* 70 * Intel 82553 PHY driver 71 */ 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/kernel.h> 76 #include <sys/device.h> 77 #include <sys/malloc.h> 78 #include <sys/socket.h> 79 80 #include <net/if.h> 81 #include <net/if_media.h> 82 83 #include <dev/mii/mii.h> 84 #include <dev/mii/miivar.h> 85 #include <dev/mii/miidevs.h> 86 87 #include <dev/mii/iophyreg.h> 88 89 int iophymatch __P((struct device *, struct cfdata *, void *)); 90 void iophyattach __P((struct device *, struct device *, void *)); 91 92 struct cfattach iophy_ca = { 93 sizeof(struct mii_softc), iophymatch, iophyattach, mii_phy_detach, 94 mii_phy_activate 95 }; 96 97 int iophy_service __P((struct mii_softc *, struct mii_data *, int)); 98 void iophy_status __P((struct mii_softc *)); 99 100 const struct mii_phy_funcs iophy_funcs = { 101 iophy_service, iophy_status, mii_phy_reset, 102 }; 103 104 int 105 iophymatch(parent, match, aux) 106 struct device *parent; 107 struct cfdata *match; 108 void *aux; 109 { 110 struct mii_attach_args *ma = aux; 111 112 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxINTEL && 113 MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553) 114 return (10); 115 116 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_yyINTEL && 117 MII_MODEL(ma->mii_id2) == MII_MODEL_yyINTEL_I82553) 118 return (10); 119 120 return (0); 121 } 122 123 void 124 iophyattach(parent, self, aux) 125 struct device *parent, *self; 126 void *aux; 127 { 128 struct mii_softc *sc = (struct mii_softc *)self; 129 struct mii_attach_args *ma = aux; 130 struct mii_data *mii = ma->mii_data; 131 132 printf(": %s, rev. %d\n", MII_STR_xxINTEL_I82553, 133 MII_REV(ma->mii_id2)); 134 135 sc->mii_inst = mii->mii_instance; 136 sc->mii_phy = ma->mii_phyno; 137 sc->mii_funcs = &iophy_funcs; 138 sc->mii_pdata = mii; 139 sc->mii_flags = mii->mii_flags; 140 sc->mii_anegticks = 5; 141 142 PHY_RESET(sc); 143 144 sc->mii_capabilities = 145 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 146 printf("%s: ", sc->mii_dev.dv_xname); 147 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 148 printf("no media present"); 149 else 150 mii_phy_add_media(sc); 151 printf("\n"); 152 } 153 154 int 155 iophy_service(sc, mii, cmd) 156 struct mii_softc *sc; 157 struct mii_data *mii; 158 int cmd; 159 { 160 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 161 int reg; 162 163 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 164 return (ENXIO); 165 166 switch (cmd) { 167 case MII_POLLSTAT: 168 /* 169 * If we're not polling our PHY instance, just return. 170 */ 171 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 172 return (0); 173 break; 174 175 case MII_MEDIACHG: 176 /* 177 * If the media indicates a different PHY instance, 178 * isolate ourselves. 179 */ 180 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 181 reg = PHY_READ(sc, MII_BMCR); 182 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 183 return (0); 184 } 185 186 /* 187 * If the interface is not up, don't do anything. 188 */ 189 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 190 break; 191 192 mii_phy_setmedia(sc); 193 break; 194 195 case MII_TICK: 196 /* 197 * If we're not currently selected, just return. 198 */ 199 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 200 return (0); 201 202 if (mii_phy_tick(sc) == EJUSTRETURN) 203 return (0); 204 break; 205 206 case MII_DOWN: 207 mii_phy_down(sc); 208 return (0); 209 } 210 211 /* Update the media status. */ 212 mii_phy_status(sc); 213 214 /* Callback if something changed. */ 215 mii_phy_update(sc, cmd); 216 return (0); 217 } 218 219 void 220 iophy_status(sc) 221 struct mii_softc *sc; 222 { 223 struct mii_data *mii = sc->mii_pdata; 224 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 225 int bmsr, bmcr, ext0; 226 227 mii->mii_media_status = IFM_AVALID; 228 mii->mii_media_active = IFM_ETHER; 229 230 bmsr = PHY_READ(sc, MII_BMSR) | 231 PHY_READ(sc, MII_BMSR); 232 if (bmsr & BMSR_LINK) 233 mii->mii_media_status |= IFM_ACTIVE; 234 235 bmcr = PHY_READ(sc, MII_BMCR); 236 if (bmcr & BMCR_ISO) { 237 mii->mii_media_active |= IFM_NONE; 238 mii->mii_media_status = 0; 239 return; 240 } 241 242 if (bmcr & BMCR_LOOP) 243 mii->mii_media_active |= IFM_LOOP; 244 245 if (bmcr & BMCR_AUTOEN) { 246 if ((bmsr & BMSR_ACOMP) == 0) { 247 /* Erg, still trying, I guess... */ 248 mii->mii_media_active |= IFM_NONE; 249 return; 250 } 251 ext0 = PHY_READ(sc, MII_IOPHY_EXT0); 252 253 if (ext0 & EXT0_SPEED) 254 if (bmsr & BMSR_100T4) { 255 mii->mii_media_active |= IFM_100_T4; 256 return; 257 } else { 258 mii->mii_media_active |= IFM_100_TX; 259 } 260 else 261 mii->mii_media_active |= IFM_10_T; 262 263 if (ext0 & EXT0_DUPLEX) 264 mii->mii_media_active |= IFM_FDX; 265 } else 266 mii->mii_media_active = ife->ifm_media; 267 } 268
Indexes created Sun Sep 28 16:09:52 GMT 2025