gentbi.c revision 1.2.2.6
1 1.2.2.6 jdolecek /* $NetBSD: gentbi.c,v 1.2.2.6 2002/09/06 08:44:59 jdolecek Exp $ */ 2 1.2.2.2 lukem 3 1.2.2.2 lukem /*- 4 1.2.2.2 lukem * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc. 5 1.2.2.2 lukem * All rights reserved. 6 1.2.2.2 lukem * 7 1.2.2.2 lukem * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 lukem * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 1.2.2.2 lukem * NASA Ames Research Center. 10 1.2.2.2 lukem * 11 1.2.2.2 lukem * Redistribution and use in source and binary forms, with or without 12 1.2.2.2 lukem * modification, are permitted provided that the following conditions 13 1.2.2.2 lukem * are met: 14 1.2.2.2 lukem * 1. Redistributions of source code must retain the above copyright 15 1.2.2.2 lukem * notice, this list of conditions and the following disclaimer. 16 1.2.2.2 lukem * 2. Redistributions in binary form must reproduce the above copyright 17 1.2.2.2 lukem * notice, this list of conditions and the following disclaimer in the 18 1.2.2.2 lukem * documentation and/or other materials provided with the distribution. 19 1.2.2.2 lukem * 3. All advertising materials mentioning features or use of this software 20 1.2.2.2 lukem * must display the following acknowledgement: 21 1.2.2.2 lukem * This product includes software developed by the NetBSD 22 1.2.2.2 lukem * Foundation, Inc. and its contributors. 23 1.2.2.2 lukem * 4. Neither the name of The NetBSD Foundation nor the names of its 24 1.2.2.2 lukem * contributors may be used to endorse or promote products derived 25 1.2.2.2 lukem * from this software without specific prior written permission. 26 1.2.2.2 lukem * 27 1.2.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 1.2.2.2 lukem * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 1.2.2.2 lukem * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 1.2.2.2 lukem * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 1.2.2.2 lukem * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 1.2.2.2 lukem * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 1.2.2.2 lukem * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 1.2.2.2 lukem * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 1.2.2.2 lukem * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 1.2.2.2 lukem * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 1.2.2.2 lukem * POSSIBILITY OF SUCH DAMAGE. 38 1.2.2.2 lukem */ 39 1.2.2.2 lukem 40 1.2.2.2 lukem /* 41 1.2.2.2 lukem * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 42 1.2.2.2 lukem * 43 1.2.2.2 lukem * Redistribution and use in source and binary forms, with or without 44 1.2.2.2 lukem * modification, are permitted provided that the following conditions 45 1.2.2.2 lukem * are met: 46 1.2.2.2 lukem * 1. Redistributions of source code must retain the above copyright 47 1.2.2.2 lukem * notice, this list of conditions and the following disclaimer. 48 1.2.2.2 lukem * 2. Redistributions in binary form must reproduce the above copyright 49 1.2.2.2 lukem * notice, this list of conditions and the following disclaimer in the 50 1.2.2.2 lukem * documentation and/or other materials provided with the distribution. 51 1.2.2.2 lukem * 3. All advertising materials mentioning features or use of this software 52 1.2.2.2 lukem * must display the following acknowledgement: 53 1.2.2.2 lukem * This product includes software developed by Manuel Bouyer. 54 1.2.2.2 lukem * 4. The name of the author may not be used to endorse or promote products 55 1.2.2.2 lukem * derived from this software without specific prior written permission. 56 1.2.2.2 lukem * 57 1.2.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 1.2.2.2 lukem * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 1.2.2.2 lukem * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 1.2.2.2 lukem * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 1.2.2.2 lukem * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 1.2.2.2 lukem * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 1.2.2.2 lukem * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 1.2.2.2 lukem * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 1.2.2.2 lukem * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 1.2.2.2 lukem * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 1.2.2.2 lukem */ 68 1.2.2.2 lukem 69 1.2.2.2 lukem /* 70 1.2.2.2 lukem * Driver for generic ten-bit (1000BASE-SX) interfaces, built in to 71 1.2.2.2 lukem * many Gigabit Ethernet chips. 72 1.2.2.2 lukem * 73 1.2.2.2 lukem * All we have to do here is correctly report speed and duplex. 74 1.2.2.2 lukem */ 75 1.2.2.2 lukem 76 1.2.2.4 thorpej #include <sys/cdefs.h> 77 1.2.2.6 jdolecek __KERNEL_RCSID(0, "$NetBSD: gentbi.c,v 1.2.2.6 2002/09/06 08:44:59 jdolecek Exp $"); 78 1.2.2.4 thorpej 79 1.2.2.2 lukem #include <sys/param.h> 80 1.2.2.2 lukem #include <sys/systm.h> 81 1.2.2.2 lukem #include <sys/kernel.h> 82 1.2.2.2 lukem #include <sys/device.h> 83 1.2.2.2 lukem #include <sys/socket.h> 84 1.2.2.2 lukem #include <sys/errno.h> 85 1.2.2.2 lukem 86 1.2.2.2 lukem #include <net/if.h> 87 1.2.2.2 lukem #include <net/if_media.h> 88 1.2.2.2 lukem 89 1.2.2.2 lukem #include <dev/mii/mii.h> 90 1.2.2.2 lukem #include <dev/mii/miivar.h> 91 1.2.2.2 lukem #include <dev/mii/miidevs.h> 92 1.2.2.2 lukem 93 1.2.2.3 thorpej int gentbimatch(struct device *, struct cfdata *, void *); 94 1.2.2.3 thorpej void gentbiattach(struct device *, struct device *, void *); 95 1.2.2.2 lukem 96 1.2.2.2 lukem struct cfattach gentbi_ca = { 97 1.2.2.2 lukem sizeof(struct mii_softc), gentbimatch, gentbiattach, 98 1.2.2.2 lukem mii_phy_detach, mii_phy_activate 99 1.2.2.2 lukem }; 100 1.2.2.2 lukem 101 1.2.2.3 thorpej int gentbi_service(struct mii_softc *, struct mii_data *, int); 102 1.2.2.3 thorpej void gentbi_status(struct mii_softc *); 103 1.2.2.2 lukem 104 1.2.2.2 lukem const struct mii_phy_funcs gentbi_funcs = { 105 1.2.2.2 lukem gentbi_service, gentbi_status, mii_phy_reset, 106 1.2.2.2 lukem }; 107 1.2.2.2 lukem 108 1.2.2.2 lukem int 109 1.2.2.3 thorpej gentbimatch(struct device *parent, struct cfdata *match, void *aux) 110 1.2.2.2 lukem { 111 1.2.2.2 lukem struct mii_attach_args *ma = aux; 112 1.2.2.2 lukem struct mii_data *mii = ma->mii_data; 113 1.2.2.2 lukem int bmsr, extsr; 114 1.2.2.2 lukem 115 1.2.2.2 lukem /* 116 1.2.2.2 lukem * We match as a generic TBI if: 117 1.2.2.2 lukem * 118 1.2.2.2 lukem * - There is no media in the BMSR. 119 1.2.2.2 lukem * - EXTSR has only 1000X. 120 1.2.2.2 lukem */ 121 1.2.2.2 lukem bmsr = (*mii->mii_readreg)(parent, ma->mii_phyno, MII_BMSR); 122 1.2.2.2 lukem if ((bmsr & BMSR_EXTSTAT) == 0 || (bmsr & BMSR_MEDIAMASK) != 0) 123 1.2.2.2 lukem return (0); 124 1.2.2.2 lukem 125 1.2.2.2 lukem extsr = (*mii->mii_readreg)(parent, ma->mii_phyno, MII_EXTSR); 126 1.2.2.2 lukem if (extsr & (EXTSR_1000TFDX|EXTSR_1000THDX)) 127 1.2.2.2 lukem return (0); 128 1.2.2.2 lukem 129 1.2.2.2 lukem if (extsr & (EXTSR_1000XFDX|EXTSR_1000XHDX)) { 130 1.2.2.2 lukem /* 131 1.2.2.2 lukem * We think this is a generic TBI. Return a match 132 1.2.2.2 lukem * priority higher than ukphy, but lower than what 133 1.2.2.2 lukem * specific drivers will return. 134 1.2.2.2 lukem */ 135 1.2.2.2 lukem return (2); 136 1.2.2.2 lukem } 137 1.2.2.2 lukem 138 1.2.2.2 lukem return (0); 139 1.2.2.2 lukem } 140 1.2.2.2 lukem 141 1.2.2.2 lukem void 142 1.2.2.3 thorpej gentbiattach(struct device *parent, struct device *self, void *aux) 143 1.2.2.2 lukem { 144 1.2.2.2 lukem struct mii_softc *sc = (struct mii_softc *)self; 145 1.2.2.2 lukem struct mii_attach_args *ma = aux; 146 1.2.2.2 lukem struct mii_data *mii = ma->mii_data; 147 1.2.2.2 lukem 148 1.2.2.2 lukem printf(": Generic ten-bit interface, rev. %d\n", 149 1.2.2.2 lukem MII_REV(ma->mii_id2)); 150 1.2.2.2 lukem 151 1.2.2.2 lukem sc->mii_inst = mii->mii_instance; 152 1.2.2.2 lukem sc->mii_phy = ma->mii_phyno; 153 1.2.2.2 lukem sc->mii_funcs = &gentbi_funcs; 154 1.2.2.2 lukem sc->mii_pdata = mii; 155 1.2.2.5 jdolecek sc->mii_flags = ma->mii_flags; 156 1.2.2.2 lukem sc->mii_anegticks = 5; 157 1.2.2.2 lukem 158 1.2.2.2 lukem PHY_RESET(sc); 159 1.2.2.2 lukem 160 1.2.2.2 lukem /* 161 1.2.2.2 lukem * Mask out all media in the BMSR. We only are really interested 162 1.2.2.2 lukem * in "auto". 163 1.2.2.2 lukem */ 164 1.2.2.2 lukem sc->mii_capabilities = 165 1.2.2.2 lukem PHY_READ(sc, MII_BMSR) & ma->mii_capmask & ~BMSR_MEDIAMASK; 166 1.2.2.2 lukem if (sc->mii_capabilities & BMSR_EXTSTAT) 167 1.2.2.2 lukem sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 168 1.2.2.2 lukem 169 1.2.2.2 lukem printf("%s: ", sc->mii_dev.dv_xname); 170 1.2.2.2 lukem if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 171 1.2.2.2 lukem (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 172 1.2.2.2 lukem printf("no media present"); 173 1.2.2.2 lukem else 174 1.2.2.2 lukem mii_phy_add_media(sc); 175 1.2.2.2 lukem printf("\n"); 176 1.2.2.2 lukem } 177 1.2.2.2 lukem 178 1.2.2.2 lukem int 179 1.2.2.3 thorpej gentbi_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 180 1.2.2.2 lukem { 181 1.2.2.2 lukem struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 182 1.2.2.2 lukem int reg; 183 1.2.2.2 lukem 184 1.2.2.2 lukem switch (cmd) { 185 1.2.2.2 lukem case MII_POLLSTAT: 186 1.2.2.2 lukem /* 187 1.2.2.2 lukem * If we're not polling our PHY instance, just return. 188 1.2.2.2 lukem */ 189 1.2.2.2 lukem if (IFM_INST(ife->ifm_media) != sc->mii_inst) 190 1.2.2.2 lukem return (0); 191 1.2.2.2 lukem break; 192 1.2.2.2 lukem 193 1.2.2.2 lukem case MII_MEDIACHG: 194 1.2.2.2 lukem /* 195 1.2.2.2 lukem * If the media indicates a different PHY instance, 196 1.2.2.2 lukem * isolate ourselves. 197 1.2.2.2 lukem */ 198 1.2.2.2 lukem if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 199 1.2.2.2 lukem reg = PHY_READ(sc, MII_BMCR); 200 1.2.2.2 lukem PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 201 1.2.2.2 lukem return (0); 202 1.2.2.2 lukem } 203 1.2.2.2 lukem 204 1.2.2.2 lukem /* 205 1.2.2.2 lukem * If the interface is not up, don't do anything. 206 1.2.2.2 lukem */ 207 1.2.2.2 lukem if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 208 1.2.2.2 lukem break; 209 1.2.2.2 lukem 210 1.2.2.2 lukem mii_phy_setmedia(sc); 211 1.2.2.2 lukem break; 212 1.2.2.2 lukem 213 1.2.2.2 lukem case MII_TICK: 214 1.2.2.2 lukem /* 215 1.2.2.2 lukem * If we're not currently selected, just return. 216 1.2.2.2 lukem */ 217 1.2.2.2 lukem if (IFM_INST(ife->ifm_media) != sc->mii_inst) 218 1.2.2.2 lukem return (0); 219 1.2.2.2 lukem 220 1.2.2.2 lukem if (mii_phy_tick(sc) == EJUSTRETURN) 221 1.2.2.2 lukem return (0); 222 1.2.2.2 lukem break; 223 1.2.2.2 lukem 224 1.2.2.2 lukem case MII_DOWN: 225 1.2.2.2 lukem mii_phy_down(sc); 226 1.2.2.2 lukem return (0); 227 1.2.2.2 lukem } 228 1.2.2.2 lukem 229 1.2.2.2 lukem /* Update the media status. */ 230 1.2.2.2 lukem mii_phy_status(sc); 231 1.2.2.2 lukem 232 1.2.2.2 lukem /* Callback if something changed. */ 233 1.2.2.2 lukem mii_phy_update(sc, cmd); 234 1.2.2.2 lukem return (0); 235 1.2.2.2 lukem } 236 1.2.2.2 lukem 237 1.2.2.2 lukem void 238 1.2.2.3 thorpej gentbi_status(struct mii_softc *sc) 239 1.2.2.2 lukem { 240 1.2.2.2 lukem struct mii_data *mii = sc->mii_pdata; 241 1.2.2.2 lukem struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 242 1.2.2.2 lukem int bmsr, bmcr, anlpar; 243 1.2.2.2 lukem 244 1.2.2.2 lukem mii->mii_media_status = IFM_AVALID; 245 1.2.2.2 lukem mii->mii_media_active = IFM_ETHER; 246 1.2.2.2 lukem 247 1.2.2.2 lukem bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 248 1.2.2.2 lukem 249 1.2.2.2 lukem if (bmsr & BMSR_LINK) 250 1.2.2.2 lukem mii->mii_media_status |= IFM_ACTIVE; 251 1.2.2.2 lukem 252 1.2.2.2 lukem bmcr = PHY_READ(sc, MII_BMCR); 253 1.2.2.2 lukem if (bmcr & BMCR_ISO) { 254 1.2.2.2 lukem mii->mii_media_active |= IFM_NONE; 255 1.2.2.2 lukem mii->mii_media_status = 0; 256 1.2.2.2 lukem return; 257 1.2.2.2 lukem } 258 1.2.2.2 lukem 259 1.2.2.2 lukem if (bmcr & BMCR_LOOP) 260 1.2.2.2 lukem mii->mii_media_active |= IFM_LOOP; 261 1.2.2.2 lukem 262 1.2.2.2 lukem if (bmcr & BMCR_AUTOEN) { 263 1.2.2.2 lukem /* 264 1.2.2.2 lukem * The media status bits are only valid of autonegotiation 265 1.2.2.2 lukem * has completed (or it's disabled). 266 1.2.2.2 lukem */ 267 1.2.2.2 lukem if ((bmsr & BMSR_ACOMP) == 0) { 268 1.2.2.2 lukem /* Erg, still trying, I guess... */ 269 1.2.2.2 lukem mii->mii_media_active |= IFM_NONE; 270 1.2.2.2 lukem return; 271 1.2.2.2 lukem } 272 1.2.2.2 lukem 273 1.2.2.2 lukem /* 274 1.2.2.2 lukem * The media is always 1000baseSX. Check the ANLPAR to 275 1.2.2.2 lukem * see if we're doing full-duplex. 276 1.2.2.2 lukem */ 277 1.2.2.2 lukem mii->mii_media_active |= IFM_1000_SX; 278 1.2.2.2 lukem 279 1.2.2.2 lukem anlpar = PHY_READ(sc, MII_ANLPAR); 280 1.2.2.2 lukem if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0 && 281 1.2.2.2 lukem (anlpar & ANLPAR_X_FD) != 0) 282 1.2.2.2 lukem mii->mii_media_active |= IFM_FDX; 283 1.2.2.2 lukem } else 284 1.2.2.2 lukem mii->mii_media_active = ife->ifm_media; 285 1.2.2.2 lukem } 286
Indexes created Fri Oct 31 11:10:07 GMT 2025