brgphy.c revision 1.9
1 /* $NetBSD: brgphy.c,v 1.9 2002/07/12 04:00:10 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 the Broadcom BCM5400 Gig-E PHY. 71 * 72 * Programming information for this PHY was gleaned from FreeBSD 73 * (they were apparently able to get a datasheet from Broadcom). 74 */ 75 76 #include <sys/cdefs.h> 77 __KERNEL_RCSID(0, "$NetBSD: brgphy.c,v 1.9 2002/07/12 04:00:10 thorpej Exp $"); 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/kernel.h> 82 #include <sys/device.h> 83 #include <sys/socket.h> 84 #include <sys/errno.h> 85 86 #include <net/if.h> 87 #include <net/if_media.h> 88 89 #include <dev/mii/mii.h> 90 #include <dev/mii/miivar.h> 91 #include <dev/mii/miidevs.h> 92 93 #include <dev/mii/brgphyreg.h> 94 95 int brgphymatch(struct device *, struct cfdata *, void *); 96 void brgphyattach(struct device *, struct device *, void *); 97 98 struct cfattach brgphy_ca = { 99 sizeof(struct mii_softc), brgphymatch, brgphyattach, 100 mii_phy_detach, mii_phy_activate 101 }; 102 103 int brgphy_service(struct mii_softc *, struct mii_data *, int); 104 void brgphy_status(struct mii_softc *); 105 106 const struct mii_phy_funcs brgphy_funcs = { 107 brgphy_service, brgphy_status, mii_phy_reset, 108 }; 109 110 const struct mii_phydesc brgphys[] = { 111 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 112 MII_STR_BROADCOM_BCM5400 }, 113 114 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 115 MII_STR_BROADCOM_BCM5401 }, 116 117 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 118 MII_STR_BROADCOM_BCM5411 }, 119 120 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, 121 MII_STR_BROADCOM_BCM5421 }, 122 123 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 124 MII_STR_BROADCOM_BCM5701 }, 125 126 { 0, 0, 127 NULL }, 128 }; 129 130 int 131 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 132 { 133 struct mii_attach_args *ma = aux; 134 135 if (mii_phy_match(ma, brgphys) != NULL) 136 return (10); 137 138 return (0); 139 } 140 141 void 142 brgphyattach(struct device *parent, struct device *self, void *aux) 143 { 144 struct mii_softc *sc = (struct mii_softc *)self; 145 struct mii_attach_args *ma = aux; 146 struct mii_data *mii = ma->mii_data; 147 const struct mii_phydesc *mpd; 148 149 mpd = mii_phy_match(ma, brgphys); 150 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 151 152 sc->mii_inst = mii->mii_instance; 153 sc->mii_phy = ma->mii_phyno; 154 sc->mii_funcs = &brgphy_funcs; 155 sc->mii_pdata = mii; 156 sc->mii_flags = ma->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 if (sc->mii_capabilities & BMSR_EXTSTAT) 164 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 165 166 printf("%s: ", sc->mii_dev.dv_xname); 167 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 168 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 169 printf("no media present"); 170 else 171 mii_phy_add_media(sc); 172 printf("\n"); 173 } 174 175 int 176 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 177 { 178 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 179 int reg; 180 181 switch (cmd) { 182 case MII_POLLSTAT: 183 /* 184 * If we're not polling our PHY instance, just return. 185 */ 186 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 187 return (0); 188 break; 189 190 case MII_MEDIACHG: 191 /* 192 * If the media indicates a different PHY instance, 193 * isolate ourselves. 194 */ 195 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 196 reg = PHY_READ(sc, MII_BMCR); 197 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 198 return (0); 199 } 200 201 /* 202 * If the interface is not up, don't do anything. 203 */ 204 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 205 break; 206 207 mii_phy_setmedia(sc); 208 break; 209 210 case MII_TICK: 211 /* 212 * If we're not currently selected, just return. 213 */ 214 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 215 return (0); 216 217 if (mii_phy_tick(sc) == EJUSTRETURN) 218 return (0); 219 break; 220 221 case MII_DOWN: 222 mii_phy_down(sc); 223 return (0); 224 } 225 226 /* Update the media status. */ 227 mii_phy_status(sc); 228 229 /* Callback if something changed. */ 230 mii_phy_update(sc, cmd); 231 return (0); 232 } 233 234 void 235 brgphy_status(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 bmcr, auxsts, gtsr; 240 241 mii->mii_media_status = IFM_AVALID; 242 mii->mii_media_active = IFM_ETHER; 243 244 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 245 246 if (auxsts & BRGPHY_AUXSTS_LINK) 247 mii->mii_media_status |= IFM_ACTIVE; 248 249 bmcr = PHY_READ(sc, MII_BMCR); 250 if (bmcr & BMCR_ISO) { 251 mii->mii_media_active |= IFM_NONE; 252 mii->mii_media_status = 0; 253 return; 254 } 255 256 if (bmcr & BMCR_LOOP) 257 mii->mii_media_active |= IFM_LOOP; 258 259 if (bmcr & BMCR_AUTOEN) { 260 /* 261 * The media status bits are only valid of autonegotiation 262 * has completed (or it's disabled). 263 */ 264 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 265 /* Erg, still trying, I guess... */ 266 mii->mii_media_active |= IFM_NONE; 267 return; 268 } 269 270 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 271 case BRGPHY_RES_1000FD: 272 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 273 gtsr = PHY_READ(sc, MII_100T2SR); 274 if (gtsr & GTSR_MS_RES) 275 mii->mii_media_active |= IFM_ETH_MASTER; 276 break; 277 278 case BRGPHY_RES_1000HD: 279 mii->mii_media_active |= IFM_1000_T; 280 gtsr = PHY_READ(sc, MII_100T2SR); 281 if (gtsr & GTSR_MS_RES) 282 mii->mii_media_active |= IFM_ETH_MASTER; 283 break; 284 285 case BRGPHY_RES_100FD: 286 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 287 break; 288 289 case BRGPHY_RES_100T4: 290 mii->mii_media_active |= IFM_100_T4; 291 break; 292 293 case BRGPHY_RES_100HD: 294 mii->mii_media_active |= IFM_100_TX; 295 break; 296 297 case BRGPHY_RES_10FD: 298 mii->mii_media_active |= IFM_10_T|IFM_FDX; 299 break; 300 301 case BRGPHY_RES_10HD: 302 mii->mii_media_active |= IFM_10_T; 303 break; 304 305 default: 306 mii->mii_media_active |= IFM_NONE; 307 mii->mii_media_status = 0; 308 } 309 } else 310 mii->mii_media_active = ife->ifm_media; 311 } 312
Indexes created Wed Sep 24 15:09:51 GMT 2025