brgphy.c revision 1.7
1 /* $NetBSD: brgphy.c,v 1.7 2002/06/22 14:38:34 fvdl 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 1.7 2002/06/22 14:38:34 fvdl 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/malloc.h> 84 #include <sys/socket.h> 85 #include <sys/errno.h> 86 87 #include <net/if.h> 88 #include <net/if_media.h> 89 90 #include <dev/mii/mii.h> 91 #include <dev/mii/miivar.h> 92 #include <dev/mii/miidevs.h> 93 94 #include <dev/mii/brgphyreg.h> 95 96 int brgphymatch(struct device *, struct cfdata *, void *); 97 void brgphyattach(struct device *, struct device *, void *); 98 99 struct cfattach brgphy_ca = { 100 sizeof(struct mii_softc), brgphymatch, brgphyattach, 101 mii_phy_detach, mii_phy_activate 102 }; 103 104 int brgphy_service(struct mii_softc *, struct mii_data *, int); 105 void brgphy_status(struct mii_softc *); 106 107 const struct mii_phy_funcs brgphy_funcs = { 108 brgphy_service, brgphy_status, mii_phy_reset, 109 }; 110 111 const struct mii_phydesc brgphys[] = { 112 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 113 MII_STR_BROADCOM_BCM5400 }, 114 115 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 116 MII_STR_BROADCOM_BCM5401 }, 117 118 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 119 MII_STR_BROADCOM_BCM5411 }, 120 121 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 122 MII_STR_BROADCOM_BCM5701 }, 123 124 { 0, 0, 125 NULL }, 126 }; 127 128 int 129 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 130 { 131 struct mii_attach_args *ma = aux; 132 133 if (mii_phy_match(ma, brgphys) != NULL) 134 return (10); 135 136 return (0); 137 } 138 139 void 140 brgphyattach(struct device *parent, struct device *self, void *aux) 141 { 142 struct mii_softc *sc = (struct mii_softc *)self; 143 struct mii_attach_args *ma = aux; 144 struct mii_data *mii = ma->mii_data; 145 const struct mii_phydesc *mpd; 146 147 mpd = mii_phy_match(ma, brgphys); 148 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 149 150 sc->mii_inst = mii->mii_instance; 151 sc->mii_phy = ma->mii_phyno; 152 sc->mii_funcs = &brgphy_funcs; 153 sc->mii_pdata = mii; 154 sc->mii_flags = ma->mii_flags; 155 sc->mii_anegticks = 5; 156 157 PHY_RESET(sc); 158 159 sc->mii_capabilities = 160 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 161 if (sc->mii_capabilities & BMSR_EXTSTAT) 162 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 163 164 printf("%s: ", sc->mii_dev.dv_xname); 165 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 166 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 167 printf("no media present"); 168 else 169 mii_phy_add_media(sc); 170 printf("\n"); 171 } 172 173 int 174 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 175 { 176 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 177 int reg; 178 179 switch (cmd) { 180 case MII_POLLSTAT: 181 /* 182 * If we're not polling our PHY instance, just return. 183 */ 184 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 185 return (0); 186 break; 187 188 case MII_MEDIACHG: 189 /* 190 * If the media indicates a different PHY instance, 191 * isolate ourselves. 192 */ 193 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 194 reg = PHY_READ(sc, MII_BMCR); 195 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 196 return (0); 197 } 198 199 /* 200 * If the interface is not up, don't do anything. 201 */ 202 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 203 break; 204 205 mii_phy_setmedia(sc); 206 break; 207 208 case MII_TICK: 209 /* 210 * If we're not currently selected, just return. 211 */ 212 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 213 return (0); 214 215 if (mii_phy_tick(sc) == EJUSTRETURN) 216 return (0); 217 break; 218 219 case MII_DOWN: 220 mii_phy_down(sc); 221 return (0); 222 } 223 224 /* Update the media status. */ 225 mii_phy_status(sc); 226 227 /* Callback if something changed. */ 228 mii_phy_update(sc, cmd); 229 return (0); 230 } 231 232 void 233 brgphy_status(struct mii_softc *sc) 234 { 235 struct mii_data *mii = sc->mii_pdata; 236 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 237 int bmcr, auxsts, gtsr; 238 239 mii->mii_media_status = IFM_AVALID; 240 mii->mii_media_active = IFM_ETHER; 241 242 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 243 244 if (auxsts & BRGPHY_AUXSTS_LINK) 245 mii->mii_media_status |= IFM_ACTIVE; 246 247 bmcr = PHY_READ(sc, MII_BMCR); 248 if (bmcr & BMCR_ISO) { 249 mii->mii_media_active |= IFM_NONE; 250 mii->mii_media_status = 0; 251 return; 252 } 253 254 if (bmcr & BMCR_LOOP) 255 mii->mii_media_active |= IFM_LOOP; 256 257 if (bmcr & BMCR_AUTOEN) { 258 /* 259 * The media status bits are only valid of autonegotiation 260 * has completed (or it's disabled). 261 */ 262 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 263 /* Erg, still trying, I guess... */ 264 mii->mii_media_active |= IFM_NONE; 265 return; 266 } 267 268 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 269 case BRGPHY_RES_1000FD: 270 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 271 gtsr = PHY_READ(sc, MII_100T2SR); 272 if (gtsr & GTSR_MS_RES) 273 mii->mii_media_active |= IFM_ETH_MASTER; 274 break; 275 276 case BRGPHY_RES_1000HD: 277 mii->mii_media_active |= IFM_1000_T; 278 gtsr = PHY_READ(sc, MII_100T2SR); 279 if (gtsr & GTSR_MS_RES) 280 mii->mii_media_active |= IFM_ETH_MASTER; 281 break; 282 283 case BRGPHY_RES_100FD: 284 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 285 break; 286 287 case BRGPHY_RES_100T4: 288 mii->mii_media_active |= IFM_100_T4; 289 break; 290 291 case BRGPHY_RES_100HD: 292 mii->mii_media_active |= IFM_100_TX; 293 break; 294 295 case BRGPHY_RES_10FD: 296 mii->mii_media_active |= IFM_10_T|IFM_FDX; 297 break; 298 299 case BRGPHY_RES_10HD: 300 mii->mii_media_active |= IFM_10_T; 301 break; 302 303 default: 304 mii->mii_media_active |= IFM_NONE; 305 mii->mii_media_status = 0; 306 } 307 } else 308 mii->mii_media_active = ife->ifm_media; 309 } 310
Indexes created Wed Sep 24 14:09:57 GMT 2025