nsphyter.c revision 1.10
1 /* $NetBSD: nsphyter.c,v 1.10 2001/05/31 20:30:21 thorpej 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 DP83843 `PHYTER' ethernet 10/100 PHY 71 * Data Sheet available from www.national.com 72 * 73 * We also support the DP83815 MacPHYER internal PHY since, for our 74 * purposes, they are compatible. 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/nsphyterreg.h> 93 94 int nsphytermatch __P((struct device *, struct cfdata *, void *)); 95 void nsphyterattach __P((struct device *, struct device *, void *)); 96 97 struct cfattach nsphyter_ca = { 98 sizeof(struct mii_softc), nsphytermatch, nsphyterattach, 99 mii_phy_detach, mii_phy_activate 100 }; 101 102 int nsphyter_service __P((struct mii_softc *, struct mii_data *, int)); 103 void nsphyter_status __P((struct mii_softc *)); 104 105 const struct mii_phy_funcs nsphyter_funcs = { 106 nsphyter_service, nsphyter_status, mii_phy_reset, 107 }; 108 109 int 110 nsphytermatch(parent, match, aux) 111 struct device *parent; 112 struct cfdata *match; 113 void *aux; 114 { 115 struct mii_attach_args *ma = aux; 116 117 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxNATSEMI && 118 MII_MODEL(ma->mii_id2) == MII_MODEL_xxNATSEMI_DP83843) 119 return (10); 120 121 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxNATSEMI && 122 MII_MODEL(ma->mii_id2) == MII_MODEL_xxNATSEMI_DP83815) 123 return (10); 124 125 return (0); 126 } 127 128 void 129 nsphyterattach(parent, self, aux) 130 struct device *parent, *self; 131 void *aux; 132 { 133 struct mii_softc *sc = (struct mii_softc *)self; 134 struct mii_attach_args *ma = aux; 135 struct mii_data *mii = ma->mii_data; 136 const char *model; 137 138 switch (MII_MODEL(ma->mii_id2)) { 139 case MII_MODEL_xxNATSEMI_DP83843: 140 model = MII_STR_xxNATSEMI_DP83843; 141 break; 142 case MII_MODEL_xxNATSEMI_DP83815: 143 model = MII_STR_xxNATSEMI_DP83815; 144 break; 145 default: 146 printf("\n"); 147 panic("nsphyterattach: impossible"); 148 } 149 150 printf(": %s, rev. %d\n", model, MII_REV(ma->mii_id2)); 151 152 sc->mii_inst = mii->mii_instance; 153 sc->mii_phy = ma->mii_phyno; 154 sc->mii_funcs = &nsphyter_funcs; 155 sc->mii_pdata = mii; 156 sc->mii_flags = mii->mii_flags; 157 sc->mii_anegticks = 5; 158 159 PHY_RESET(sc); 160 161 sc->mii_capabilities = 162 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 163 printf("%s: ", sc->mii_dev.dv_xname); 164 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 165 printf("no media present"); 166 else 167 mii_phy_add_media(sc); 168 printf("\n"); 169 } 170 171 int 172 nsphyter_service(sc, mii, cmd) 173 struct mii_softc *sc; 174 struct mii_data *mii; 175 int cmd; 176 { 177 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 178 int reg; 179 180 switch (cmd) { 181 case MII_POLLSTAT: 182 /* 183 * If we're not polling our PHY instance, just return. 184 */ 185 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 186 return (0); 187 break; 188 189 case MII_MEDIACHG: 190 /* 191 * If the media indicates a different PHY instance, 192 * isolate ourselves. 193 */ 194 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 195 reg = PHY_READ(sc, MII_BMCR); 196 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 197 return (0); 198 } 199 200 /* 201 * If the interface is not up, don't do anything. 202 */ 203 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 204 break; 205 206 mii_phy_setmedia(sc); 207 break; 208 209 case MII_TICK: 210 /* 211 * If we're not currently selected, just return. 212 */ 213 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 214 return (0); 215 216 if (mii_phy_tick(sc) == EJUSTRETURN) 217 return (0); 218 break; 219 220 case MII_DOWN: 221 mii_phy_down(sc); 222 return (0); 223 } 224 225 /* Update the media status. */ 226 mii_phy_status(sc); 227 228 /* Callback if something changed. */ 229 mii_phy_update(sc, cmd); 230 return (0); 231 } 232 233 void 234 nsphyter_status(sc) 235 struct mii_softc *sc; 236 { 237 struct mii_data *mii = sc->mii_pdata; 238 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 239 int bmsr, bmcr, physts; 240 241 mii->mii_media_status = IFM_AVALID; 242 mii->mii_media_active = IFM_ETHER; 243 244 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 245 physts = PHY_READ(sc, MII_NSPHYTER_PHYSTS); 246 247 if (physts & PHYSTS_LINK) 248 mii->mii_media_status |= IFM_ACTIVE; 249 250 bmcr = PHY_READ(sc, MII_BMCR); 251 if (bmcr & BMCR_ISO) { 252 mii->mii_media_active |= IFM_NONE; 253 mii->mii_media_status = 0; 254 return; 255 } 256 257 if (bmcr & BMCR_LOOP) 258 mii->mii_media_active |= IFM_LOOP; 259 260 if (bmcr & BMCR_AUTOEN) { 261 /* 262 * The media status bits are only valid of autonegotiation 263 * has completed (or it's disabled). 264 */ 265 if ((bmsr & BMSR_ACOMP) == 0) { 266 /* Erg, still trying, I guess... */ 267 mii->mii_media_active |= IFM_NONE; 268 return; 269 } 270 271 if (physts & PHYSTS_SPEED10) 272 mii->mii_media_active |= IFM_10_T; 273 else 274 mii->mii_media_active |= IFM_100_TX; 275 if (physts & PHYSTS_DUPLEX) 276 mii->mii_media_active |= IFM_FDX; 277 } else 278 mii->mii_media_active = ife->ifm_media; 279 } 280
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