1 /* $OpenBSD: qsphy.c,v 1.21 2015/03/14 03:38:48 jsg Exp $ */ 2 /* $NetBSD: qsphy.c,v 1.19 2000/02/02 23:34:57 thorpej Exp $ */ 3 4 /*- 5 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 55 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 56 */ 57 58 /* 59 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY 60 * datasheet from www.qualitysemi.com 61 */ 62 63 #include <sys/param.h> 64 #include <sys/systm.h> 65 #include <sys/device.h> 66 #include <sys/socket.h> 67 68 #include <net/if.h> 69 #include <net/if_var.h> 70 #include <net/if_media.h> 71 72 #include <dev/mii/mii.h> 73 #include <dev/mii/miivar.h> 74 #include <dev/mii/miidevs.h> 75 76 #include <dev/mii/qsphyreg.h> 77 78 int qsphymatch(struct device *, void *, void *); 79 void qsphyattach(struct device *, struct device *, void *); 80 81 struct cfattach qsphy_ca = { 82 sizeof(struct mii_softc), qsphymatch, qsphyattach, mii_phy_detach 83 }; 84 85 struct cfdriver qsphy_cd = { 86 NULL, "qsphy", DV_DULL 87 }; 88 89 int qsphy_service(struct mii_softc *, struct mii_data *, int); 90 void qsphy_reset(struct mii_softc *); 91 void qsphy_status(struct mii_softc *); 92 93 const struct mii_phy_funcs qsphy_funcs = { 94 qsphy_service, qsphy_status, qsphy_reset, 95 }; 96 97 static const struct mii_phydesc qsphys[] = { 98 { MII_OUI_QUALITYSEMI, MII_MODEL_QUALITYSEMI_QS6612, 99 MII_STR_QUALITYSEMI_QS6612 }, 100 101 { 0, 0, 102 NULL }, 103 }; 104 105 int 106 qsphymatch(struct device *parent, void *match, void *aux) 107 { 108 struct mii_attach_args *ma = aux; 109 110 if (mii_phy_match(ma, qsphys) != NULL) 111 return (10); 112 113 return (0); 114 } 115 116 void 117 qsphyattach(struct device *parent, struct device *self, void *aux) 118 { 119 struct mii_softc *sc = (struct mii_softc *)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, qsphys); 125 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 126 127 sc->mii_inst = mii->mii_instance; 128 sc->mii_phy = ma->mii_phyno; 129 sc->mii_funcs = &qsphy_funcs; 130 sc->mii_pdata = mii; 131 sc->mii_flags = ma->mii_flags; 132 133 PHY_RESET(sc); 134 135 sc->mii_capabilities = 136 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 137 if (sc->mii_capabilities & BMSR_MEDIAMASK) 138 mii_phy_add_media(sc); 139 } 140 141 int 142 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 143 { 144 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 145 int reg; 146 147 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 148 return (ENXIO); 149 150 switch (cmd) { 151 case MII_POLLSTAT: 152 /* 153 * If we're not polling our PHY instance, just return. 154 */ 155 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 156 return (0); 157 break; 158 159 case MII_MEDIACHG: 160 /* 161 * If the media indicates a different PHY instance, 162 * isolate ourselves. 163 */ 164 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 165 reg = PHY_READ(sc, MII_BMCR); 166 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 167 return (0); 168 } 169 170 /* 171 * If the interface is not up, don't do anything. 172 */ 173 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 174 break; 175 176 mii_phy_setmedia(sc); 177 break; 178 179 case MII_TICK: 180 /* 181 * If we're not currently selected, just return. 182 */ 183 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 184 return (0); 185 186 if (mii_phy_tick(sc) == EJUSTRETURN) 187 return (0); 188 break; 189 190 case MII_DOWN: 191 mii_phy_down(sc); 192 return (0); 193 } 194 195 /* Update the media status. */ 196 mii_phy_status(sc); 197 198 /* Callback if something changed. */ 199 mii_phy_update(sc, cmd); 200 return (0); 201 } 202 203 void 204 qsphy_status(struct mii_softc *sc) 205 { 206 struct mii_data *mii = sc->mii_pdata; 207 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 208 int bmsr, bmcr, pctl; 209 210 mii->mii_media_status = IFM_AVALID; 211 mii->mii_media_active = IFM_ETHER; 212 213 bmsr = PHY_READ(sc, MII_BMSR) | 214 PHY_READ(sc, MII_BMSR); 215 if (bmsr & BMSR_LINK) 216 mii->mii_media_status |= IFM_ACTIVE; 217 218 bmcr = PHY_READ(sc, MII_BMCR); 219 if (bmcr & BMCR_ISO) { 220 mii->mii_media_active |= IFM_NONE; 221 mii->mii_media_status = 0; 222 return; 223 } 224 225 if (bmcr & BMCR_LOOP) 226 mii->mii_media_active |= IFM_LOOP; 227 228 if (bmcr & BMCR_AUTOEN) { 229 if ((bmsr & BMSR_ACOMP) == 0) { 230 /* Erg, still trying, I guess... */ 231 mii->mii_media_active |= IFM_NONE; 232 return; 233 } 234 pctl = PHY_READ(sc, MII_QSPHY_PCTL) | 235 PHY_READ(sc, MII_QSPHY_PCTL); 236 switch (pctl & PCTL_OPMASK) { 237 case PCTL_10_T: 238 mii->mii_media_active |= IFM_10_T|IFM_HDX; 239 break; 240 case PCTL_10_T_FDX: 241 mii->mii_media_active |= IFM_10_T|IFM_FDX; 242 break; 243 case PCTL_100_TX: 244 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 245 break; 246 case PCTL_100_TX_FDX: 247 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 248 break; 249 case PCTL_100_T4: 250 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 251 break; 252 default: 253 /* Erg... this shouldn't happen. */ 254 mii->mii_media_active |= IFM_NONE; 255 break; 256 } 257 } else 258 mii->mii_media_active = ife->ifm_media; 259 } 260 261 void 262 qsphy_reset(struct mii_softc *sc) 263 { 264 mii_phy_reset(sc); 265 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 266 } 267