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 * $FreeBSD: src/sys/dev/mii/qsphy.c,v 1.1.2.2 2002/10/21 21:21:42 semenu Exp $ 41 * $DragonFly: src/sys/dev/netif/mii_layer/qsphy.c,v 1.2 2003/06/17 04:28:28 dillon Exp $ 42 */ 43 44 /* 45 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. All advertising materials mentioning features or use of this software 56 * must display the following acknowledgement: 57 * This product includes software developed by Manuel Bouyer. 58 * 4. The name of the author may not be used to endorse or promote products 59 * derived from this software without specific prior written permission. 60 * 61 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 62 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 63 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 64 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 65 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 66 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 67 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 68 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 69 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 70 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 71 */ 72 73 /* 74 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY 75 * datasheet from www.qualitysemi.com 76 */ 77 78 #include <sys/param.h> 79 #include <sys/systm.h> 80 #include <sys/kernel.h> 81 #include <sys/socket.h> 82 #include <sys/errno.h> 83 #include <sys/module.h> 84 #include <sys/bus.h> 85 86 #include <net/if.h> 87 #include <net/if_media.h> 88 89 #include <dev/mii/mii.h> 90 #include <dev/mii/miivar.h> 91 #include <dev/mii/miidevs.h> 92 93 #include <dev/mii/qsphyreg.h> 94 95 #include "miibus_if.h" 96 97 static int qsphy_probe __P((device_t)); 98 static int qsphy_attach __P((device_t)); 99 static int qsphy_detach __P((device_t)); 100 101 static device_method_t qsphy_methods[] = { 102 /* device interface */ 103 DEVMETHOD(device_probe, qsphy_probe), 104 DEVMETHOD(device_attach, qsphy_attach), 105 DEVMETHOD(device_detach, qsphy_detach), 106 DEVMETHOD(device_shutdown, bus_generic_shutdown), 107 { 0, 0 } 108 }; 109 110 static devclass_t qsphy_devclass; 111 112 static driver_t qsphy_driver = { 113 "qsphy", 114 qsphy_methods, 115 sizeof(struct mii_softc) 116 }; 117 118 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0); 119 120 int qsphy_service __P((struct mii_softc *, struct mii_data *, int)); 121 void qsphy_reset __P((struct mii_softc *)); 122 void qsphy_status __P((struct mii_softc *)); 123 124 static int qsphy_probe(dev) 125 device_t dev; 126 { 127 struct mii_attach_args *ma; 128 129 ma = device_get_ivars(dev); 130 131 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_QUALSEMI && 132 MII_MODEL(ma->mii_id2) == MII_MODEL_QUALSEMI_QS6612) { 133 device_set_desc(dev, MII_STR_QUALSEMI_QS6612); 134 } else 135 return (ENXIO); 136 137 return (0); 138 } 139 140 static int qsphy_attach(dev) 141 device_t dev; 142 { 143 struct mii_softc *sc; 144 struct mii_attach_args *ma; 145 struct mii_data *mii; 146 147 sc = device_get_softc(dev); 148 ma = device_get_ivars(dev); 149 sc->mii_dev = device_get_parent(dev); 150 mii = device_get_softc(sc->mii_dev); 151 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 152 153 sc->mii_inst = mii->mii_instance; 154 sc->mii_phy = ma->mii_phyno; 155 sc->mii_service = qsphy_service; 156 sc->mii_pdata = mii; 157 sc->mii_flags |= MIIF_NOISOLATE; 158 159 qsphy_reset(sc); 160 161 mii->mii_instance++; 162 163 sc->mii_capabilities = 164 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 165 device_printf(dev, " "); 166 if (sc->mii_capabilities & BMSR_MEDIAMASK) 167 mii_add_media(mii, sc->mii_capabilities, 168 sc->mii_inst); 169 printf("\n"); 170 171 MIIBUS_MEDIAINIT(sc->mii_dev); 172 return (0); 173 } 174 175 static int qsphy_detach(dev) 176 device_t dev; 177 { 178 struct mii_softc *sc; 179 struct mii_data *mii; 180 181 sc = device_get_softc(dev); 182 mii = device_get_softc(device_get_parent(dev)); 183 sc->mii_dev = NULL; 184 LIST_REMOVE(sc, mii_list); 185 186 return(0); 187 } 188 189 int 190 qsphy_service(sc, mii, cmd) 191 struct mii_softc *sc; 192 struct mii_data *mii; 193 int cmd; 194 { 195 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 196 int reg; 197 198 /* 199 * If we're not selected, then do nothing, just isolate, if 200 * changing media. 201 */ 202 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 203 if (cmd == MII_MEDIACHG) { 204 reg = PHY_READ(sc, MII_BMCR); 205 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 206 } 207 208 return (0); 209 } 210 211 switch (cmd) { 212 case MII_POLLSTAT: 213 break; 214 215 case MII_MEDIACHG: 216 /* 217 * If the interface is not up, don't do anything. 218 */ 219 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 220 break; 221 222 switch (IFM_SUBTYPE(ife->ifm_media)) { 223 case IFM_AUTO: 224 /* 225 * If we're already in auto mode, just return. 226 */ 227 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 228 return (0); 229 230 (void) mii_phy_auto(sc, 1); 231 break; 232 233 default: 234 /* 235 * BMCR data is stored in the ifmedia entry. 236 */ 237 PHY_WRITE(sc, MII_ANAR, 238 mii_anar(ife->ifm_media)); 239 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 240 } 241 break; 242 243 case MII_TICK: 244 /* 245 * Is the interface even up? 246 */ 247 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 248 return (0); 249 250 /* 251 * Only used for autonegotiation. 252 */ 253 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 254 break; 255 256 /* 257 * This PHY's autonegotiation doesn't need to be kicked. 258 */ 259 break; 260 } 261 262 /* Update the media status. */ 263 qsphy_status(sc); 264 265 /* Callback if something changed. */ 266 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { 267 MIIBUS_STATCHG(sc->mii_dev); 268 sc->mii_active = mii->mii_media_active; 269 } 270 return (0); 271 } 272 273 void 274 qsphy_status(sc) 275 struct mii_softc *sc; 276 { 277 struct mii_data *mii = sc->mii_pdata; 278 int bmsr, bmcr, pctl; 279 280 mii->mii_media_status = IFM_AVALID; 281 mii->mii_media_active = IFM_ETHER; 282 283 bmsr = PHY_READ(sc, MII_BMSR) | 284 PHY_READ(sc, MII_BMSR); 285 if (bmsr & BMSR_LINK) 286 mii->mii_media_status |= IFM_ACTIVE; 287 288 bmcr = PHY_READ(sc, MII_BMCR); 289 if (bmcr & BMCR_ISO) { 290 mii->mii_media_active |= IFM_NONE; 291 mii->mii_media_status = 0; 292 return; 293 } 294 295 if (bmcr & BMCR_LOOP) 296 mii->mii_media_active |= IFM_LOOP; 297 298 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 299 switch (pctl & PCTL_OPMASK) { 300 case PCTL_10_T: 301 mii->mii_media_active |= IFM_10_T; 302 break; 303 case PCTL_10_T_FDX: 304 mii->mii_media_active |= IFM_10_T|IFM_FDX; 305 break; 306 case PCTL_100_TX: 307 mii->mii_media_active |= IFM_100_TX; 308 break; 309 case PCTL_100_TX_FDX: 310 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 311 break; 312 case PCTL_100_T4: 313 mii->mii_media_active |= IFM_100_T4; 314 break; 315 case PCTL_AN: 316 mii->mii_media_active |= IFM_NONE; 317 break; 318 default: 319 /* Erg... this shouldn't happen. */ 320 mii->mii_media_active |= IFM_NONE; 321 break; 322 } 323 } 324 325 void 326 qsphy_reset(sc) 327 struct mii_softc *sc; 328 { 329 330 mii_phy_reset(sc); 331 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 332 } 333