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 1.8 2005/12/11 01:54:08 swildner 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 125 qsphy_probe(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 141 qsphy_attach(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, ma); 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_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(sc, sc->mii_capabilities); 168 printf("\n"); 169 170 MIIBUS_MEDIAINIT(sc->mii_dev); 171 return (0); 172 } 173 174 static int 175 qsphy_detach(device_t dev) 176 { 177 struct mii_softc *sc; 178 struct mii_data *mii; 179 180 sc = device_get_softc(dev); 181 mii = device_get_softc(device_get_parent(dev)); 182 sc->mii_dev = NULL; 183 LIST_REMOVE(sc, mii_list); 184 185 return(0); 186 } 187 188 int 189 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 190 { 191 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 192 int reg; 193 194 /* 195 * If we're not selected, then do nothing, just isolate, if 196 * changing media. 197 */ 198 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 199 if (cmd == MII_MEDIACHG) { 200 reg = PHY_READ(sc, MII_BMCR); 201 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 202 } 203 204 return (0); 205 } 206 207 switch (cmd) { 208 case MII_POLLSTAT: 209 break; 210 211 case MII_MEDIACHG: 212 /* 213 * If the interface is not up, don't do anything. 214 */ 215 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 216 break; 217 218 switch (IFM_SUBTYPE(ife->ifm_media)) { 219 case IFM_AUTO: 220 /* 221 * If we're already in auto mode, just return. 222 */ 223 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 224 return (0); 225 226 (void) mii_phy_auto(sc, 1); 227 break; 228 229 default: 230 /* 231 * BMCR data is stored in the ifmedia entry. 232 */ 233 PHY_WRITE(sc, MII_ANAR, 234 mii_anar(ife->ifm_media)); 235 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 236 } 237 break; 238 239 case MII_TICK: 240 /* 241 * Is the interface even up? 242 */ 243 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 244 return (0); 245 246 /* 247 * Only used for autonegotiation. 248 */ 249 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 250 break; 251 252 /* 253 * This PHY's autonegotiation doesn't need to be kicked. 254 */ 255 break; 256 } 257 258 /* Update the media status. */ 259 qsphy_status(sc); 260 261 /* Callback if something changed. */ 262 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { 263 MIIBUS_STATCHG(sc->mii_dev); 264 sc->mii_active = mii->mii_media_active; 265 } 266 return (0); 267 } 268 269 void 270 qsphy_status(struct mii_softc *sc) 271 { 272 struct mii_data *mii = sc->mii_pdata; 273 int bmsr, bmcr, pctl; 274 275 mii->mii_media_status = IFM_AVALID; 276 mii->mii_media_active = IFM_ETHER; 277 278 bmsr = PHY_READ(sc, MII_BMSR) | 279 PHY_READ(sc, MII_BMSR); 280 if (bmsr & BMSR_LINK) 281 mii->mii_media_status |= IFM_ACTIVE; 282 283 bmcr = PHY_READ(sc, MII_BMCR); 284 if (bmcr & BMCR_ISO) { 285 mii->mii_media_active |= IFM_NONE; 286 mii->mii_media_status = 0; 287 return; 288 } 289 290 if (bmcr & BMCR_LOOP) 291 mii->mii_media_active |= IFM_LOOP; 292 293 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 294 switch (pctl & PCTL_OPMASK) { 295 case PCTL_10_T: 296 mii->mii_media_active |= IFM_10_T; 297 break; 298 case PCTL_10_T_FDX: 299 mii->mii_media_active |= IFM_10_T|IFM_FDX; 300 break; 301 case PCTL_100_TX: 302 mii->mii_media_active |= IFM_100_TX; 303 break; 304 case PCTL_100_TX_FDX: 305 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 306 break; 307 case PCTL_100_T4: 308 mii->mii_media_active |= IFM_100_T4; 309 break; 310 case PCTL_AN: 311 mii->mii_media_active |= IFM_NONE; 312 break; 313 default: 314 /* Erg... this shouldn't happen. */ 315 mii->mii_media_active |= IFM_NONE; 316 break; 317 } 318 } 319 320 void 321 qsphy_reset(struct mii_softc *sc) 322 { 323 324 mii_phy_reset(sc); 325 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 326 } 327