1 /* $OpenBSD: qsphy.c,v 1.18 2010/07/23 07:47:13 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/kernel.h> 66 #include <sys/device.h> 67 #include <sys/socket.h> 68 69 #include <net/if.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 mii_phy_activate 84 }; 85 86 struct cfdriver qsphy_cd = { 87 NULL, "qsphy", DV_DULL 88 }; 89 90 int qsphy_service(struct mii_softc *, struct mii_data *, int); 91 void qsphy_reset(struct mii_softc *); 92 void qsphy_status(struct mii_softc *); 93 94 const struct mii_phy_funcs qsphy_funcs = { 95 qsphy_service, qsphy_status, qsphy_reset, 96 }; 97 98 static const struct mii_phydesc qsphys[] = { 99 { MII_OUI_QUALITYSEMI, MII_MODEL_QUALITYSEMI_QS6612, 100 MII_STR_QUALITYSEMI_QS6612 }, 101 102 { 0, 0, 103 NULL }, 104 }; 105 106 int 107 qsphymatch(struct device *parent, void *match, void *aux) 108 { 109 struct mii_attach_args *ma = aux; 110 111 if (mii_phy_match(ma, qsphys) != NULL) 112 return (10); 113 114 return (0); 115 } 116 117 void 118 qsphyattach(struct device *parent, struct device *self, void *aux) 119 { 120 struct mii_softc *sc = (struct mii_softc *)self; 121 struct mii_attach_args *ma = aux; 122 struct mii_data *mii = ma->mii_data; 123 const struct mii_phydesc *mpd; 124 125 mpd = mii_phy_match(ma, qsphys); 126 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 127 128 sc->mii_inst = mii->mii_instance; 129 sc->mii_phy = ma->mii_phyno; 130 sc->mii_funcs = &qsphy_funcs; 131 sc->mii_pdata = mii; 132 sc->mii_flags = ma->mii_flags; 133 134 PHY_RESET(sc); 135 136 sc->mii_capabilities = 137 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 138 if (sc->mii_capabilities & BMSR_MEDIAMASK) 139 mii_phy_add_media(sc); 140 } 141 142 int 143 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 144 { 145 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 146 int reg; 147 148 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 149 return (ENXIO); 150 151 switch (cmd) { 152 case MII_POLLSTAT: 153 /* 154 * If we're not polling our PHY instance, just return. 155 */ 156 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 157 return (0); 158 break; 159 160 case MII_MEDIACHG: 161 /* 162 * If the media indicates a different PHY instance, 163 * isolate ourselves. 164 */ 165 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 166 reg = PHY_READ(sc, MII_BMCR); 167 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 168 return (0); 169 } 170 171 /* 172 * If the interface is not up, don't do anything. 173 */ 174 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 175 break; 176 177 mii_phy_setmedia(sc); 178 break; 179 180 case MII_TICK: 181 /* 182 * If we're not currently selected, just return. 183 */ 184 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 185 return (0); 186 187 if (mii_phy_tick(sc) == EJUSTRETURN) 188 return (0); 189 break; 190 191 case MII_DOWN: 192 mii_phy_down(sc); 193 return (0); 194 } 195 196 /* Update the media status. */ 197 mii_phy_status(sc); 198 199 /* Callback if something changed. */ 200 mii_phy_update(sc, cmd); 201 return (0); 202 } 203 204 void 205 qsphy_status(struct mii_softc *sc) 206 { 207 struct mii_data *mii = sc->mii_pdata; 208 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 209 int bmsr, bmcr, pctl; 210 211 mii->mii_media_status = IFM_AVALID; 212 mii->mii_media_active = IFM_ETHER; 213 214 bmsr = PHY_READ(sc, MII_BMSR) | 215 PHY_READ(sc, MII_BMSR); 216 if (bmsr & BMSR_LINK) 217 mii->mii_media_status |= IFM_ACTIVE; 218 219 bmcr = PHY_READ(sc, MII_BMCR); 220 if (bmcr & BMCR_ISO) { 221 mii->mii_media_active |= IFM_NONE; 222 mii->mii_media_status = 0; 223 return; 224 } 225 226 if (bmcr & BMCR_LOOP) 227 mii->mii_media_active |= IFM_LOOP; 228 229 if (bmcr & BMCR_AUTOEN) { 230 if ((bmsr & BMSR_ACOMP) == 0) { 231 /* Erg, still trying, I guess... */ 232 mii->mii_media_active |= IFM_NONE; 233 return; 234 } 235 pctl = PHY_READ(sc, MII_QSPHY_PCTL) | 236 PHY_READ(sc, MII_QSPHY_PCTL); 237 switch (pctl & PCTL_OPMASK) { 238 case PCTL_10_T: 239 mii->mii_media_active |= IFM_10_T|IFM_HDX; 240 break; 241 case PCTL_10_T_FDX: 242 mii->mii_media_active |= IFM_10_T|IFM_FDX; 243 break; 244 case PCTL_100_TX: 245 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 246 break; 247 case PCTL_100_TX_FDX: 248 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 249 break; 250 case PCTL_100_T4: 251 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 252 break; 253 default: 254 /* Erg... this shouldn't happen. */ 255 mii->mii_media_active |= IFM_NONE; 256 break; 257 } 258 } else 259 mii->mii_media_active = ife->ifm_media; 260 } 261 262 void 263 qsphy_reset(struct mii_softc *sc) 264 { 265 mii_phy_reset(sc); 266 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 267 } 268