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 1.5 2004/09/18 19:32:59 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 "mii.h" 90 #include "miivar.h" 91 #include "miidevs.h" 92 93 #include "qsphyreg.h" 94 95 #include "miibus_if.h" 96 97 static int qsphy_probe (device_t); 98 static int qsphy_attach (device_t); 99 static int qsphy_detach (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 (struct mii_softc *, struct mii_data *, int); 121 void qsphy_reset (struct mii_softc *); 122 void qsphy_status (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 mii_softc_init(sc); 150 sc->mii_dev = device_get_parent(dev); 151 mii = device_get_softc(sc->mii_dev); 152 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 153 154 sc->mii_inst = mii->mii_instance; 155 sc->mii_phy = ma->mii_phyno; 156 sc->mii_service = qsphy_service; 157 sc->mii_pdata = mii; 158 sc->mii_flags |= MIIF_NOISOLATE; 159 160 qsphy_reset(sc); 161 162 mii->mii_instance++; 163 164 sc->mii_capabilities = 165 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 166 device_printf(dev, " "); 167 if (sc->mii_capabilities & BMSR_MEDIAMASK) 168 mii_add_media(mii, sc->mii_capabilities, 169 sc->mii_inst); 170 printf("\n"); 171 172 MIIBUS_MEDIAINIT(sc->mii_dev); 173 return (0); 174 } 175 176 static int qsphy_detach(dev) 177 device_t dev; 178 { 179 struct mii_softc *sc; 180 struct mii_data *mii; 181 182 sc = device_get_softc(dev); 183 mii = device_get_softc(device_get_parent(dev)); 184 sc->mii_dev = NULL; 185 LIST_REMOVE(sc, mii_list); 186 187 return(0); 188 } 189 190 int 191 qsphy_service(sc, mii, cmd) 192 struct mii_softc *sc; 193 struct mii_data *mii; 194 int cmd; 195 { 196 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 197 int reg; 198 199 /* 200 * If we're not selected, then do nothing, just isolate, if 201 * changing media. 202 */ 203 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 204 if (cmd == MII_MEDIACHG) { 205 reg = PHY_READ(sc, MII_BMCR); 206 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 207 } 208 209 return (0); 210 } 211 212 switch (cmd) { 213 case MII_POLLSTAT: 214 break; 215 216 case MII_MEDIACHG: 217 /* 218 * If the interface is not up, don't do anything. 219 */ 220 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 221 break; 222 223 switch (IFM_SUBTYPE(ife->ifm_media)) { 224 case IFM_AUTO: 225 /* 226 * If we're already in auto mode, just return. 227 */ 228 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 229 return (0); 230 231 (void) mii_phy_auto(sc, 1); 232 break; 233 234 default: 235 /* 236 * BMCR data is stored in the ifmedia entry. 237 */ 238 PHY_WRITE(sc, MII_ANAR, 239 mii_anar(ife->ifm_media)); 240 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 241 } 242 break; 243 244 case MII_TICK: 245 /* 246 * Is the interface even up? 247 */ 248 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 249 return (0); 250 251 /* 252 * Only used for autonegotiation. 253 */ 254 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 255 break; 256 257 /* 258 * This PHY's autonegotiation doesn't need to be kicked. 259 */ 260 break; 261 } 262 263 /* Update the media status. */ 264 qsphy_status(sc); 265 266 /* Callback if something changed. */ 267 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { 268 MIIBUS_STATCHG(sc->mii_dev); 269 sc->mii_active = mii->mii_media_active; 270 } 271 return (0); 272 } 273 274 void 275 qsphy_status(sc) 276 struct mii_softc *sc; 277 { 278 struct mii_data *mii = sc->mii_pdata; 279 int bmsr, bmcr, pctl; 280 281 mii->mii_media_status = IFM_AVALID; 282 mii->mii_media_active = IFM_ETHER; 283 284 bmsr = PHY_READ(sc, MII_BMSR) | 285 PHY_READ(sc, MII_BMSR); 286 if (bmsr & BMSR_LINK) 287 mii->mii_media_status |= IFM_ACTIVE; 288 289 bmcr = PHY_READ(sc, MII_BMCR); 290 if (bmcr & BMCR_ISO) { 291 mii->mii_media_active |= IFM_NONE; 292 mii->mii_media_status = 0; 293 return; 294 } 295 296 if (bmcr & BMCR_LOOP) 297 mii->mii_media_active |= IFM_LOOP; 298 299 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 300 switch (pctl & PCTL_OPMASK) { 301 case PCTL_10_T: 302 mii->mii_media_active |= IFM_10_T; 303 break; 304 case PCTL_10_T_FDX: 305 mii->mii_media_active |= IFM_10_T|IFM_FDX; 306 break; 307 case PCTL_100_TX: 308 mii->mii_media_active |= IFM_100_TX; 309 break; 310 case PCTL_100_TX_FDX: 311 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 312 break; 313 case PCTL_100_T4: 314 mii->mii_media_active |= IFM_100_T4; 315 break; 316 case PCTL_AN: 317 mii->mii_media_active |= IFM_NONE; 318 break; 319 default: 320 /* Erg... this shouldn't happen. */ 321 mii->mii_media_active |= IFM_NONE; 322 break; 323 } 324 } 325 326 void 327 qsphy_reset(sc) 328 struct mii_softc *sc; 329 { 330 331 mii_phy_reset(sc); 332 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 333 } 334