brgphy.c revision 1.3
1 /* $NetBSD: brgphy.c,v 1.3 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 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/param.h> 77 #include <sys/systm.h> 78 #include <sys/kernel.h> 79 #include <sys/device.h> 80 #include <sys/malloc.h> 81 #include <sys/socket.h> 82 #include <sys/errno.h> 83 84 #include <net/if.h> 85 #include <net/if_media.h> 86 87 #include <dev/mii/mii.h> 88 #include <dev/mii/miivar.h> 89 #include <dev/mii/miidevs.h> 90 91 #include <dev/mii/brgphyreg.h> 92 93 int brgphymatch __P((struct device *, struct cfdata *, void *)); 94 void brgphyattach __P((struct device *, struct device *, void *)); 95 96 struct cfattach brgphy_ca = { 97 sizeof(struct mii_softc), brgphymatch, brgphyattach, 98 mii_phy_detach, mii_phy_activate 99 }; 100 101 int brgphy_service __P((struct mii_softc *, struct mii_data *, int)); 102 void brgphy_status __P((struct mii_softc *)); 103 104 const struct mii_phy_funcs brgphy_funcs = { 105 brgphy_service, brgphy_status, mii_phy_reset, 106 }; 107 108 const struct mii_phydesc brgphys[] = { 109 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 110 MII_STR_BROADCOM_BCM5400 }, 111 112 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 113 MII_STR_BROADCOM_BCM5401 }, 114 115 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 116 MII_STR_BROADCOM_BCM5411 }, 117 118 { 0, 0, 119 NULL }, 120 }; 121 122 int 123 brgphymatch(parent, match, aux) 124 struct device *parent; 125 struct cfdata *match; 126 void *aux; 127 { 128 struct mii_attach_args *ma = aux; 129 130 if (mii_phy_match(ma, brgphys) != NULL) 131 return (10); 132 133 return (0); 134 } 135 136 void 137 brgphyattach(parent, self, aux) 138 struct device *parent, *self; 139 void *aux; 140 { 141 struct mii_softc *sc = (struct mii_softc *)self; 142 struct mii_attach_args *ma = aux; 143 struct mii_data *mii = ma->mii_data; 144 const struct mii_phydesc *mpd; 145 146 mpd = mii_phy_match(ma, brgphys); 147 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 148 149 sc->mii_inst = mii->mii_instance; 150 sc->mii_phy = ma->mii_phyno; 151 sc->mii_funcs = &brgphy_funcs; 152 sc->mii_pdata = mii; 153 sc->mii_flags = mii->mii_flags; 154 sc->mii_anegticks = 5; 155 156 PHY_RESET(sc); 157 158 sc->mii_capabilities = 159 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 160 if (sc->mii_capabilities & BMSR_EXTSTAT) 161 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 162 163 printf("%s: ", sc->mii_dev.dv_xname); 164 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 165 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 166 printf("no media present"); 167 else 168 mii_phy_add_media(sc); 169 printf("\n"); 170 } 171 172 int 173 brgphy_service(sc, mii, cmd) 174 struct mii_softc *sc; 175 struct mii_data *mii; 176 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(sc) 236 struct mii_softc *sc; 237 { 238 struct mii_data *mii = sc->mii_pdata; 239 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 240 int bmcr, auxsts, gtsr; 241 242 mii->mii_media_status = IFM_AVALID; 243 mii->mii_media_active = IFM_ETHER; 244 245 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 246 247 if (auxsts & BRGPHY_AUXSTS_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 ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 266 /* Erg, still trying, I guess... */ 267 mii->mii_media_active |= IFM_NONE; 268 return; 269 } 270 271 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 272 case BRGPHY_RES_1000FD: 273 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 274 gtsr = PHY_READ(sc, MII_100T2SR); 275 if (gtsr & GTSR_MS_RES) 276 mii->mii_media_active |= IFM_ETH_MASTER; 277 break; 278 279 case BRGPHY_RES_1000HD: 280 mii->mii_media_active |= IFM_1000_T; 281 gtsr = PHY_READ(sc, MII_100T2SR); 282 if (gtsr & GTSR_MS_RES) 283 mii->mii_media_active |= IFM_ETH_MASTER; 284 break; 285 286 case BRGPHY_RES_100FD: 287 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 288 break; 289 290 case BRGPHY_RES_100T4: 291 mii->mii_media_active |= IFM_100_T4; 292 break; 293 294 case BRGPHY_RES_100HD: 295 mii->mii_media_active |= IFM_100_TX; 296 break; 297 298 case BRGPHY_RES_10FD: 299 mii->mii_media_active |= IFM_10_T|IFM_FDX; 300 break; 301 302 case BRGPHY_RES_10HD: 303 mii->mii_media_active |= IFM_10_T; 304 break; 305 306 default: 307 mii->mii_media_active |= IFM_NONE; 308 mii->mii_media_status = 0; 309 } 310 } else 311 mii->mii_media_active = ife->ifm_media; 312 } 313
Indexes created Fri Sep 26 20:09:58 GMT 2025