glxtphy.c revision 1.26
1 /* $NetBSD: glxtphy.c,v 1.26 2019/01/22 03:42:27 msaitoh 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 */ 56 57 /* 58 * Driver for the Level One LXT-1000 10/100/1000 PHY. 59 */ 60 61 #include <sys/cdefs.h> 62 __KERNEL_RCSID(0, "$NetBSD: glxtphy.c,v 1.26 2019/01/22 03:42:27 msaitoh Exp $"); 63 64 #include <sys/param.h> 65 #include <sys/systm.h> 66 #include <sys/kernel.h> 67 #include <sys/device.h> 68 #include <sys/socket.h> 69 #include <sys/errno.h> 70 71 #include <net/if.h> 72 #include <net/if_media.h> 73 74 #include <dev/mii/mii.h> 75 #include <dev/mii/miivar.h> 76 #include <dev/mii/miidevs.h> 77 78 #include <dev/mii/glxtphyreg.h> 79 80 static int glxtphymatch(device_t, cfdata_t, void *); 81 static void glxtphyattach(device_t, device_t, void *); 82 83 CFATTACH_DECL_NEW(glxtphy, sizeof(struct mii_softc), 84 glxtphymatch, glxtphyattach, mii_phy_detach, mii_phy_activate); 85 86 static int glxtphy_service(struct mii_softc *, struct mii_data *, int); 87 static void glxtphy_status(struct mii_softc *); 88 89 static const struct mii_phy_funcs glxtphy_funcs = { 90 glxtphy_service, glxtphy_status, mii_phy_reset, 91 }; 92 93 static const struct mii_phydesc glxtphys[] = { 94 { MII_OUI_LEVEL1, MII_MODEL_LEVEL1_LXT1000_OLD, 95 MII_STR_LEVEL1_LXT1000_OLD }, 96 97 { MII_OUI_LEVEL1, MII_MODEL_LEVEL1_LXT1000_OLD, 98 MII_STR_LEVEL1_LXT1000_OLD }, 99 100 { 0, 0, 101 NULL }, 102 }; 103 104 static int 105 glxtphymatch(device_t parent, cfdata_t match, 106 void *aux) 107 { 108 struct mii_attach_args *ma = aux; 109 110 if (mii_phy_match(ma, glxtphys) != NULL) 111 return (10); 112 113 return (0); 114 } 115 116 static void 117 glxtphyattach(device_t parent, device_t self, void *aux) 118 { 119 struct mii_softc *sc = device_private(self); 120 struct mii_attach_args *ma = aux; 121 struct mii_data *mii = ma->mii_data; 122 const struct mii_phydesc *mpd; 123 124 mpd = mii_phy_match(ma, glxtphys); 125 aprint_naive(": Media interface\n"); 126 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 127 128 sc->mii_dev = self; 129 sc->mii_inst = mii->mii_instance; 130 sc->mii_phy = ma->mii_phyno; 131 sc->mii_funcs = &glxtphy_funcs; 132 sc->mii_pdata = mii; 133 sc->mii_flags = ma->mii_flags; 134 sc->mii_anegticks = MII_ANEGTICKS; 135 136 PHY_RESET(sc); 137 138 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 139 sc->mii_capabilities &= ma->mii_capmask; 140 if (sc->mii_capabilities & BMSR_EXTSTAT) 141 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 142 143 aprint_normal_dev(self, ""); 144 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 145 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 146 aprint_error("no media present"); 147 else 148 mii_phy_add_media(sc); 149 aprint_normal("\n"); 150 } 151 152 static int 153 glxtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 154 { 155 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 156 uint16_t reg; 157 158 switch (cmd) { 159 case MII_POLLSTAT: 160 /* 161 * If we're not polling our PHY instance, just return. 162 */ 163 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 164 return (0); 165 break; 166 167 case MII_MEDIACHG: 168 /* 169 * If the media indicates a different PHY instance, 170 * isolate ourselves. 171 */ 172 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 173 PHY_READ(sc, MII_BMCR, ®); 174 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 175 return (0); 176 } 177 178 /* 179 * If the interface is not up, don't do anything. 180 */ 181 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 182 break; 183 184 mii_phy_setmedia(sc); 185 break; 186 187 case MII_TICK: 188 /* 189 * If we're not currently selected, just return. 190 */ 191 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 192 return (0); 193 194 if (mii_phy_tick(sc) == EJUSTRETURN) 195 return (0); 196 break; 197 198 case MII_DOWN: 199 mii_phy_down(sc); 200 return (0); 201 } 202 203 /* Update the media status. */ 204 mii_phy_status(sc); 205 206 /* Callback if something changed. */ 207 mii_phy_update(sc, cmd); 208 return (0); 209 } 210 211 static void 212 glxtphy_status(struct mii_softc *sc) 213 { 214 struct mii_data *mii = sc->mii_pdata; 215 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 216 uint16_t bmcr, qsr, gtsr; 217 218 mii->mii_media_status = IFM_AVALID; 219 mii->mii_media_active = IFM_ETHER; 220 221 PHY_READ(sc, MII_GLXTPHY_QSR, &qsr); 222 223 if (qsr & QSR_LINK) 224 mii->mii_media_status |= IFM_ACTIVE; 225 226 PHY_READ(sc, MII_BMCR, &bmcr); 227 if (bmcr & BMCR_ISO) { 228 mii->mii_media_active |= IFM_NONE; 229 mii->mii_media_status = 0; 230 return; 231 } 232 233 if (bmcr & BMCR_LOOP) 234 mii->mii_media_active |= IFM_LOOP; 235 236 if (bmcr & BMCR_AUTOEN) { 237 /* 238 * The media status bits are only valid of autonegotiation 239 * has completed (or it's disabled). 240 */ 241 if ((qsr & QSR_ACOMP) == 0) { 242 /* Erg, still trying, I guess... */ 243 mii->mii_media_active |= IFM_NONE; 244 return; 245 } 246 247 switch (QSR_SPEED_get(qsr)) { 248 case SPEED_1000: 249 mii->mii_media_active |= IFM_1000_T; 250 PHY_READ(sc, MII_100T2SR, >sr); 251 if (gtsr & GTSR_MS_RES) 252 mii->mii_media_active |= IFM_ETH_MASTER; 253 break; 254 255 case SPEED_100: 256 mii->mii_media_active |= IFM_100_TX; 257 break; 258 259 case SPEED_10_MII: 260 case SPEED_10_SERIAL: 261 mii->mii_media_active |= IFM_10_T; 262 break; 263 } 264 265 if (qsr & QSR_DUPLEX) 266 mii->mii_media_active |= 267 IFM_FDX | mii_phy_flowstatus(sc); 268 else 269 mii->mii_media_active |= IFM_HDX; 270 } else 271 mii->mii_media_active = ife->ifm_media; 272 } 273
Indexes created Wed Sep 24 02:09:48 GMT 2025