1 /* OpenBSD: qsphy.c,v 1.6 2000/08/26 20:04:18 nate 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 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by Manuel Bouyer. 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 /* 71 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY 72 * datasheet from www.qualitysemi.com 73 */ 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/kernel.h> 78 #include <sys/socket.h> 79 #include <sys/errno.h> 80 #include <sys/module.h> 81 #include <sys/bus.h> 82 83 #include <net/if.h> 84 #include <net/if_media.h> 85 86 #include <dev/mii/mii.h> 87 #include <dev/mii/miivar.h> 88 #include <dev/mii/miidevs.h> 89 90 #include <dev/mii/qsphyreg.h> 91 92 #include "miibus_if.h" 93 94 #if !defined(lint) 95 static const char rcsid[] = 96 "$FreeBSD: src/sys/dev/mii/qsphy.c,v 1.1.2.2 2002/10/21 21:21:42 semenu Exp $"; 97 #endif 98 99 static int qsphy_probe __P((device_t)); 100 static int qsphy_attach __P((device_t)); 101 static int qsphy_detach __P((device_t)); 102 103 static device_method_t qsphy_methods[] = { 104 /* device interface */ 105 DEVMETHOD(device_probe, qsphy_probe), 106 DEVMETHOD(device_attach, qsphy_attach), 107 DEVMETHOD(device_detach, qsphy_detach), 108 DEVMETHOD(device_shutdown, bus_generic_shutdown), 109 { 0, 0 } 110 }; 111 112 static devclass_t qsphy_devclass; 113 114 static driver_t qsphy_driver = { 115 "qsphy", 116 qsphy_methods, 117 sizeof(struct mii_softc) 118 }; 119 120 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0); 121 122 int qsphy_service __P((struct mii_softc *, struct mii_data *, int)); 123 void qsphy_reset __P((struct mii_softc *)); 124 void qsphy_status __P((struct mii_softc *)); 125 126 static int qsphy_probe(dev) 127 device_t dev; 128 { 129 struct mii_attach_args *ma; 130 131 ma = device_get_ivars(dev); 132 133 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_QUALSEMI && 134 MII_MODEL(ma->mii_id2) == MII_MODEL_QUALSEMI_QS6612) { 135 device_set_desc(dev, MII_STR_QUALSEMI_QS6612); 136 } else 137 return (ENXIO); 138 139 return (0); 140 } 141 142 static int qsphy_attach(dev) 143 device_t dev; 144 { 145 struct mii_softc *sc; 146 struct mii_attach_args *ma; 147 struct mii_data *mii; 148 149 sc = device_get_softc(dev); 150 ma = device_get_ivars(dev); 151 sc->mii_dev = device_get_parent(dev); 152 mii = device_get_softc(sc->mii_dev); 153 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 154 155 sc->mii_inst = mii->mii_instance; 156 sc->mii_phy = ma->mii_phyno; 157 sc->mii_service = qsphy_service; 158 sc->mii_pdata = mii; 159 sc->mii_flags |= MIIF_NOISOLATE; 160 161 qsphy_reset(sc); 162 163 mii->mii_instance++; 164 165 sc->mii_capabilities = 166 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 167 device_printf(dev, " "); 168 if (sc->mii_capabilities & BMSR_MEDIAMASK) 169 mii_add_media(mii, sc->mii_capabilities, 170 sc->mii_inst); 171 printf("\n"); 172 173 MIIBUS_MEDIAINIT(sc->mii_dev); 174 return (0); 175 } 176 177 static int qsphy_detach(dev) 178 device_t dev; 179 { 180 struct mii_softc *sc; 181 struct mii_data *mii; 182 183 sc = device_get_softc(dev); 184 mii = device_get_softc(device_get_parent(dev)); 185 sc->mii_dev = NULL; 186 LIST_REMOVE(sc, mii_list); 187 188 return(0); 189 } 190 191 int 192 qsphy_service(sc, mii, cmd) 193 struct mii_softc *sc; 194 struct mii_data *mii; 195 int cmd; 196 { 197 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 198 int reg; 199 200 /* 201 * If we're not selected, then do nothing, just isolate, if 202 * changing media. 203 */ 204 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 205 if (cmd == MII_MEDIACHG) { 206 reg = PHY_READ(sc, MII_BMCR); 207 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 208 } 209 210 return (0); 211 } 212 213 switch (cmd) { 214 case MII_POLLSTAT: 215 break; 216 217 case MII_MEDIACHG: 218 /* 219 * If the interface is not up, don't do anything. 220 */ 221 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 222 break; 223 224 switch (IFM_SUBTYPE(ife->ifm_media)) { 225 case IFM_AUTO: 226 /* 227 * If we're already in auto mode, just return. 228 */ 229 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 230 return (0); 231 232 (void) mii_phy_auto(sc, 1); 233 break; 234 235 default: 236 /* 237 * BMCR data is stored in the ifmedia entry. 238 */ 239 PHY_WRITE(sc, MII_ANAR, 240 mii_anar(ife->ifm_media)); 241 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 242 } 243 break; 244 245 case MII_TICK: 246 /* 247 * Is the interface even up? 248 */ 249 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 250 return (0); 251 252 /* 253 * Only used for autonegotiation. 254 */ 255 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 256 break; 257 258 /* 259 * This PHY's autonegotiation doesn't need to be kicked. 260 */ 261 break; 262 } 263 264 /* Update the media status. */ 265 qsphy_status(sc); 266 267 /* Callback if something changed. */ 268 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { 269 MIIBUS_STATCHG(sc->mii_dev); 270 sc->mii_active = mii->mii_media_active; 271 } 272 return (0); 273 } 274 275 void 276 qsphy_status(sc) 277 struct mii_softc *sc; 278 { 279 struct mii_data *mii = sc->mii_pdata; 280 int bmsr, bmcr, pctl; 281 282 mii->mii_media_status = IFM_AVALID; 283 mii->mii_media_active = IFM_ETHER; 284 285 bmsr = PHY_READ(sc, MII_BMSR) | 286 PHY_READ(sc, MII_BMSR); 287 if (bmsr & BMSR_LINK) 288 mii->mii_media_status |= IFM_ACTIVE; 289 290 bmcr = PHY_READ(sc, MII_BMCR); 291 if (bmcr & BMCR_ISO) { 292 mii->mii_media_active |= IFM_NONE; 293 mii->mii_media_status = 0; 294 return; 295 } 296 297 if (bmcr & BMCR_LOOP) 298 mii->mii_media_active |= IFM_LOOP; 299 300 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 301 switch (pctl & PCTL_OPMASK) { 302 case PCTL_10_T: 303 mii->mii_media_active |= IFM_10_T; 304 break; 305 case PCTL_10_T_FDX: 306 mii->mii_media_active |= IFM_10_T|IFM_FDX; 307 break; 308 case PCTL_100_TX: 309 mii->mii_media_active |= IFM_100_TX; 310 break; 311 case PCTL_100_TX_FDX: 312 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 313 break; 314 case PCTL_100_T4: 315 mii->mii_media_active |= IFM_100_T4; 316 break; 317 case PCTL_AN: 318 mii->mii_media_active |= IFM_NONE; 319 break; 320 default: 321 /* Erg... this shouldn't happen. */ 322 mii->mii_media_active |= IFM_NONE; 323 break; 324 } 325 } 326 327 void 328 qsphy_reset(sc) 329 struct mii_softc *sc; 330 { 331 332 mii_phy_reset(sc); 333 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 334 } 335