iophy.c revision 1.13
1 /* $NetBSD: iophy.c,v 1.13 2001/06/02 21:39:39 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 const struct mii_phydesc iophys[] = { 105 { MII_OUI_xxINTEL, MII_MODEL_xxINTEL_I82553, 106 MII_STR_xxINTEL_I82553 }, 107 108 { MII_OUI_yyINTEL, MII_MODEL_yyINTEL_I82553, 109 MII_STR_yyINTEL_I82553 }, 110 111 { 0, 0, 112 NULL }, 113 }; 114 115 int 116 iophymatch(parent, match, aux) 117 struct device *parent; 118 struct cfdata *match; 119 void *aux; 120 { 121 struct mii_attach_args *ma = aux; 122 123 if (mii_phy_match(ma, iophys) != NULL) 124 return (10); 125 126 return (0); 127 } 128 129 void 130 iophyattach(parent, self, aux) 131 struct device *parent, *self; 132 void *aux; 133 { 134 struct mii_softc *sc = (struct mii_softc *)self; 135 struct mii_attach_args *ma = aux; 136 struct mii_data *mii = ma->mii_data; 137 const struct mii_phydesc *mpd; 138 139 mpd = mii_phy_match(ma, iophys); 140 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 141 142 sc->mii_inst = mii->mii_instance; 143 sc->mii_phy = ma->mii_phyno; 144 sc->mii_funcs = &iophy_funcs; 145 sc->mii_pdata = mii; 146 sc->mii_flags = mii->mii_flags; 147 sc->mii_anegticks = 5; 148 149 PHY_RESET(sc); 150 151 sc->mii_capabilities = 152 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 153 printf("%s: ", sc->mii_dev.dv_xname); 154 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 155 printf("no media present"); 156 else 157 mii_phy_add_media(sc); 158 printf("\n"); 159 } 160 161 int 162 iophy_service(sc, mii, cmd) 163 struct mii_softc *sc; 164 struct mii_data *mii; 165 int cmd; 166 { 167 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 168 int reg; 169 170 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 171 return (ENXIO); 172 173 switch (cmd) { 174 case MII_POLLSTAT: 175 /* 176 * If we're not polling our PHY instance, just return. 177 */ 178 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 179 return (0); 180 break; 181 182 case MII_MEDIACHG: 183 /* 184 * If the media indicates a different PHY instance, 185 * isolate ourselves. 186 */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 188 reg = PHY_READ(sc, MII_BMCR); 189 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 190 return (0); 191 } 192 193 /* 194 * If the interface is not up, don't do anything. 195 */ 196 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 197 break; 198 199 mii_phy_setmedia(sc); 200 break; 201 202 case MII_TICK: 203 /* 204 * If we're not currently selected, just return. 205 */ 206 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 207 return (0); 208 209 if (mii_phy_tick(sc) == EJUSTRETURN) 210 return (0); 211 break; 212 213 case MII_DOWN: 214 mii_phy_down(sc); 215 return (0); 216 } 217 218 /* Update the media status. */ 219 mii_phy_status(sc); 220 221 /* Callback if something changed. */ 222 mii_phy_update(sc, cmd); 223 return (0); 224 } 225 226 void 227 iophy_status(sc) 228 struct mii_softc *sc; 229 { 230 struct mii_data *mii = sc->mii_pdata; 231 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 232 int bmsr, bmcr, ext0; 233 234 mii->mii_media_status = IFM_AVALID; 235 mii->mii_media_active = IFM_ETHER; 236 237 bmsr = PHY_READ(sc, MII_BMSR) | 238 PHY_READ(sc, MII_BMSR); 239 if (bmsr & BMSR_LINK) 240 mii->mii_media_status |= IFM_ACTIVE; 241 242 bmcr = PHY_READ(sc, MII_BMCR); 243 if (bmcr & BMCR_ISO) { 244 mii->mii_media_active |= IFM_NONE; 245 mii->mii_media_status = 0; 246 return; 247 } 248 249 if (bmcr & BMCR_LOOP) 250 mii->mii_media_active |= IFM_LOOP; 251 252 if (bmcr & BMCR_AUTOEN) { 253 if ((bmsr & BMSR_ACOMP) == 0) { 254 /* Erg, still trying, I guess... */ 255 mii->mii_media_active |= IFM_NONE; 256 return; 257 } 258 ext0 = PHY_READ(sc, MII_IOPHY_EXT0); 259 260 if (ext0 & EXT0_SPEED) 261 if (bmsr & BMSR_100T4) { 262 mii->mii_media_active |= IFM_100_T4; 263 return; 264 } else { 265 mii->mii_media_active |= IFM_100_TX; 266 } 267 else 268 mii->mii_media_active |= IFM_10_T; 269 270 if (ext0 & EXT0_DUPLEX) 271 mii->mii_media_active |= IFM_FDX; 272 } else 273 mii->mii_media_active = ife->ifm_media; 274 } 275
Indexes created Wed Sep 24 05:09:52 GMT 2025