1 /* $OpenBSD: qsphy.c,v 1.17 2008/10/25 00:10:21 brad 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 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by Manuel Bouyer. 48 * 4. The name of the author may not be used to endorse or promote products 49 * derived from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 52 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 53 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 54 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 55 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 56 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 60 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 */ 62 63 /* 64 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY 65 * datasheet from www.qualitysemi.com 66 */ 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/kernel.h> 71 #include <sys/device.h> 72 #include <sys/socket.h> 73 74 #include <net/if.h> 75 #include <net/if_media.h> 76 77 #include <dev/mii/mii.h> 78 #include <dev/mii/miivar.h> 79 #include <dev/mii/miidevs.h> 80 81 #include <dev/mii/qsphyreg.h> 82 83 int qsphymatch(struct device *, void *, void *); 84 void qsphyattach(struct device *, struct device *, void *); 85 86 struct cfattach qsphy_ca = { 87 sizeof(struct mii_softc), qsphymatch, qsphyattach, mii_phy_detach, 88 mii_phy_activate 89 }; 90 91 struct cfdriver qsphy_cd = { 92 NULL, "qsphy", DV_DULL 93 }; 94 95 int qsphy_service(struct mii_softc *, struct mii_data *, int); 96 void qsphy_reset(struct mii_softc *); 97 void qsphy_status(struct mii_softc *); 98 99 const struct mii_phy_funcs qsphy_funcs = { 100 qsphy_service, qsphy_status, qsphy_reset, 101 }; 102 103 static const struct mii_phydesc qsphys[] = { 104 { MII_OUI_QUALITYSEMI, MII_MODEL_QUALITYSEMI_QS6612, 105 MII_STR_QUALITYSEMI_QS6612 }, 106 107 { 0, 0, 108 NULL }, 109 }; 110 111 int 112 qsphymatch(struct device *parent, void *match, void *aux) 113 { 114 struct mii_attach_args *ma = aux; 115 116 if (mii_phy_match(ma, qsphys) != NULL) 117 return (10); 118 119 return (0); 120 } 121 122 void 123 qsphyattach(struct device *parent, struct device *self, void *aux) 124 { 125 struct mii_softc *sc = (struct mii_softc *)self; 126 struct mii_attach_args *ma = aux; 127 struct mii_data *mii = ma->mii_data; 128 const struct mii_phydesc *mpd; 129 130 mpd = mii_phy_match(ma, qsphys); 131 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 132 133 sc->mii_inst = mii->mii_instance; 134 sc->mii_phy = ma->mii_phyno; 135 sc->mii_funcs = &qsphy_funcs; 136 sc->mii_pdata = mii; 137 sc->mii_flags = ma->mii_flags; 138 139 PHY_RESET(sc); 140 141 sc->mii_capabilities = 142 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 143 if (sc->mii_capabilities & BMSR_MEDIAMASK) 144 mii_phy_add_media(sc); 145 } 146 147 int 148 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 149 { 150 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 151 int reg; 152 153 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 154 return (ENXIO); 155 156 switch (cmd) { 157 case MII_POLLSTAT: 158 /* 159 * If we're not polling our PHY instance, just return. 160 */ 161 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 162 return (0); 163 break; 164 165 case MII_MEDIACHG: 166 /* 167 * If the media indicates a different PHY instance, 168 * isolate ourselves. 169 */ 170 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 171 reg = PHY_READ(sc, MII_BMCR); 172 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 173 return (0); 174 } 175 176 /* 177 * If the interface is not up, don't do anything. 178 */ 179 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 180 break; 181 182 mii_phy_setmedia(sc); 183 break; 184 185 case MII_TICK: 186 /* 187 * If we're not currently selected, just return. 188 */ 189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 190 return (0); 191 192 if (mii_phy_tick(sc) == EJUSTRETURN) 193 return (0); 194 break; 195 196 case MII_DOWN: 197 mii_phy_down(sc); 198 return (0); 199 } 200 201 /* Update the media status. */ 202 mii_phy_status(sc); 203 204 /* Callback if something changed. */ 205 mii_phy_update(sc, cmd); 206 return (0); 207 } 208 209 void 210 qsphy_status(struct mii_softc *sc) 211 { 212 struct mii_data *mii = sc->mii_pdata; 213 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 214 int bmsr, bmcr, pctl; 215 216 mii->mii_media_status = IFM_AVALID; 217 mii->mii_media_active = IFM_ETHER; 218 219 bmsr = PHY_READ(sc, MII_BMSR) | 220 PHY_READ(sc, MII_BMSR); 221 if (bmsr & BMSR_LINK) 222 mii->mii_media_status |= IFM_ACTIVE; 223 224 bmcr = PHY_READ(sc, MII_BMCR); 225 if (bmcr & BMCR_ISO) { 226 mii->mii_media_active |= IFM_NONE; 227 mii->mii_media_status = 0; 228 return; 229 } 230 231 if (bmcr & BMCR_LOOP) 232 mii->mii_media_active |= IFM_LOOP; 233 234 if (bmcr & BMCR_AUTOEN) { 235 if ((bmsr & BMSR_ACOMP) == 0) { 236 /* Erg, still trying, I guess... */ 237 mii->mii_media_active |= IFM_NONE; 238 return; 239 } 240 pctl = PHY_READ(sc, MII_QSPHY_PCTL) | 241 PHY_READ(sc, MII_QSPHY_PCTL); 242 switch (pctl & PCTL_OPMASK) { 243 case PCTL_10_T: 244 mii->mii_media_active |= IFM_10_T|IFM_HDX; 245 break; 246 case PCTL_10_T_FDX: 247 mii->mii_media_active |= IFM_10_T|IFM_FDX; 248 break; 249 case PCTL_100_TX: 250 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 251 break; 252 case PCTL_100_TX_FDX: 253 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 254 break; 255 case PCTL_100_T4: 256 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 257 break; 258 default: 259 /* Erg... this shouldn't happen. */ 260 mii->mii_media_active |= IFM_NONE; 261 break; 262 } 263 } else 264 mii->mii_media_active = ife->ifm_media; 265 } 266 267 void 268 qsphy_reset(struct mii_softc *sc) 269 { 270 mii_phy_reset(sc); 271 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 272 } 273