1 /* $NetBSD: gphyter.c,v 1.4 2001/06/30 17:53:58 bjh21 Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000, 2001 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 * driver for National Semiconductor's DP83891 and DP83861 `Gig PHYTER' 71 * ethernet 10/100/1000 PHYs. The DP83891 is an older, non-firmware- 72 * driven version of the DP83861. 73 * 74 * Data Sheet available from www.national.com 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/kernel.h> 80 #include <sys/device.h> 81 #include <sys/malloc.h> 82 #include <sys/socket.h> 83 #include <sys/errno.h> 84 85 #include <net/if.h> 86 #include <net/if_media.h> 87 88 #include <dev/mii/mii.h> 89 #include <dev/mii/miivar.h> 90 #include <dev/mii/miidevs.h> 91 92 #include <dev/mii/gphyterreg.h> 93 94 int gphytermatch __P((struct device *, struct cfdata *, void *)); 95 void gphyterattach __P((struct device *, struct device *, void *)); 96 97 struct cfattach gphyter_ca = { 98 sizeof(struct mii_softc), gphytermatch, gphyterattach, 99 mii_phy_detach, mii_phy_activate 100 }; 101 102 int gphyter_service __P((struct mii_softc *, struct mii_data *, int)); 103 void gphyter_status __P((struct mii_softc *)); 104 105 const struct mii_phy_funcs gphyter_funcs = { 106 gphyter_service, gphyter_status, mii_phy_reset, 107 }; 108 109 const struct mii_phydesc gphyters[] = { 110 { MII_OUI_xxNATSEMI, MII_MODEL_xxNATSEMI_DP83861, 111 MII_STR_xxNATSEMI_DP83861 }, 112 113 { MII_OUI_xxNATSEMI, MII_MODEL_xxNATSEMI_DP83891, 114 MII_STR_xxNATSEMI_DP83891 }, 115 116 { 0, 0, 117 NULL }, 118 }; 119 120 int 121 gphytermatch(parent, match, aux) 122 struct device *parent; 123 struct cfdata *match; 124 void *aux; 125 { 126 struct mii_attach_args *ma = aux; 127 128 if (mii_phy_match(ma, gphyters) != NULL) 129 return (10); 130 131 return (0); 132 } 133 134 void 135 gphyterattach(parent, self, aux) 136 struct device *parent, *self; 137 void *aux; 138 { 139 struct mii_softc *sc = (struct mii_softc *)self; 140 struct mii_attach_args *ma = aux; 141 struct mii_data *mii = ma->mii_data; 142 const struct mii_phydesc *mpd; 143 int anar, strap; 144 145 mpd = mii_phy_match(ma, gphyters); 146 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 147 148 sc->mii_inst = mii->mii_instance; 149 sc->mii_phy = ma->mii_phyno; 150 sc->mii_funcs = &gphyter_funcs; 151 sc->mii_pdata = mii; 152 sc->mii_flags = mii->mii_flags; 153 sc->mii_anegticks = 5; 154 155 PHY_RESET(sc); 156 157 sc->mii_capabilities = 158 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 159 if (sc->mii_capabilities & BMSR_EXTSTAT) 160 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 161 162 /* 163 * The Gig PHYTER seems to have the 10baseT BMSR bits 164 * hard-wired to 0, even though the device supports 165 * 10baseT. What we do instead is read the post-reset 166 * ANAR, who's 10baseT-related bits are set by strapping 167 * pin 180, and fake the BMSR bits. 168 */ 169 anar = PHY_READ(sc, MII_ANAR); 170 if (anar & ANAR_10) 171 sc->mii_capabilities |= (BMSR_10THDX & ma->mii_capmask); 172 if (anar & ANAR_10_FD) 173 sc->mii_capabilities |= (BMSR_10TFDX & ma->mii_capmask); 174 175 printf("%s: ", sc->mii_dev.dv_xname); 176 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 177 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 178 printf("no media present"); 179 else 180 mii_phy_add_media(sc); 181 printf("\n"); 182 183 strap = PHY_READ(sc, MII_GPHYTER_STRAP); 184 printf("%s: strapped to %s mode", sc->mii_dev.dv_xname, 185 (strap & STRAP_MS_VAL) ? "master" : "slave"); 186 if (strap & STRAP_NC_MODE) 187 printf(", pre-C5 BCM5400 compat enabled"); 188 printf("\n"); 189 } 190 191 int 192 gphyter_service(sc, mii, cmd) 193 struct mii_softc *sc; 194 struct mii_data *mii; 195 int cmd; 196 { 197 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 198 int reg; 199 200 switch (cmd) { 201 case MII_POLLSTAT: 202 /* 203 * If we're not polling our PHY instance, just return. 204 */ 205 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 206 return (0); 207 break; 208 209 case MII_MEDIACHG: 210 /* 211 * If the media indicates a different PHY instance, 212 * isolate ourselves. 213 */ 214 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 215 reg = PHY_READ(sc, MII_BMCR); 216 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 217 return (0); 218 } 219 220 /* 221 * If the interface is not up, don't do anything. 222 */ 223 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 224 break; 225 226 mii_phy_setmedia(sc); 227 break; 228 229 case MII_TICK: 230 /* 231 * If we're not currently selected, just return. 232 */ 233 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 234 return (0); 235 236 if (mii_phy_tick(sc) == EJUSTRETURN) 237 return (0); 238 break; 239 240 case MII_DOWN: 241 mii_phy_down(sc); 242 return (0); 243 } 244 245 /* Update the media status. */ 246 mii_phy_status(sc); 247 248 /* Callback if something changed. */ 249 mii_phy_update(sc, cmd); 250 return (0); 251 } 252 253 void 254 gphyter_status(sc) 255 struct mii_softc *sc; 256 { 257 struct mii_data *mii = sc->mii_pdata; 258 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 259 int bmsr, bmcr, physup, gtsr; 260 261 mii->mii_media_status = IFM_AVALID; 262 mii->mii_media_active = IFM_ETHER; 263 264 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 265 266 physup = PHY_READ(sc, MII_GPHYTER_PHY_SUP); 267 268 if (physup & PHY_SUP_LINK) 269 mii->mii_media_status |= IFM_ACTIVE; 270 271 bmcr = PHY_READ(sc, MII_BMCR); 272 if (bmcr & BMCR_ISO) { 273 mii->mii_media_active |= IFM_NONE; 274 mii->mii_media_status = 0; 275 return; 276 } 277 278 if (bmcr & BMCR_LOOP) 279 mii->mii_media_active |= IFM_LOOP; 280 281 if (bmcr & BMCR_AUTOEN) { 282 /* 283 * The media status bits are only valid of autonegotiation 284 * has completed (or it's disabled). 285 */ 286 if ((bmsr & BMSR_ACOMP) == 0) { 287 /* Erg, still trying, I guess... */ 288 mii->mii_media_active |= IFM_NONE; 289 return; 290 } 291 292 switch (physup & (PHY_SUP_SPEED1|PHY_SUP_SPEED0)) { 293 case PHY_SUP_SPEED1: 294 mii->mii_media_active |= IFM_1000_T; 295 gtsr = PHY_READ(sc, MII_100T2SR); 296 if (gtsr & GTSR_MS_RES) 297 mii->mii_media_active |= IFM_ETH_MASTER; 298 break; 299 300 case PHY_SUP_SPEED0: 301 mii->mii_media_active |= IFM_100_TX; 302 break; 303 304 case 0: 305 mii->mii_media_active |= IFM_10_T; 306 break; 307 308 default: 309 mii->mii_media_active |= IFM_NONE; 310 mii->mii_media_status = 0; 311 } 312 if (physup & PHY_SUP_DUPLEX) 313 mii->mii_media_active |= IFM_FDX; 314 } else 315 mii->mii_media_active = ife->ifm_media; 316 } 317