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 "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 "$FreeBSD$"; 97 #endif 98 99 static int qsphy_probe(device_t); 100 static int qsphy_attach(device_t); 101 102 static device_method_t qsphy_methods[] = { 103 /* device interface */ 104 DEVMETHOD(device_probe, qsphy_probe), 105 DEVMETHOD(device_attach, qsphy_attach), 106 DEVMETHOD(device_detach, mii_phy_detach), 107 DEVMETHOD(device_shutdown, bus_generic_shutdown), 108 { 0, 0 } 109 }; 110 111 static devclass_t qsphy_devclass; 112 113 static driver_t qsphy_driver = { 114 "qsphy", 115 qsphy_methods, 116 sizeof(struct mii_softc) 117 }; 118 119 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0); 120 121 static int qsphy_service(struct mii_softc *, struct mii_data *, int); 122 static void qsphy_reset(struct mii_softc *); 123 static void qsphy_status(struct mii_softc *); 124 125 static int 126 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 143 qsphy_attach(dev) 144 device_t dev; 145 { 146 struct mii_softc *sc; 147 struct mii_attach_args *ma; 148 struct mii_data *mii; 149 150 sc = device_get_softc(dev); 151 ma = device_get_ivars(dev); 152 sc->mii_dev = device_get_parent(dev); 153 mii = device_get_softc(sc->mii_dev); 154 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 155 156 sc->mii_inst = mii->mii_instance; 157 sc->mii_phy = ma->mii_phyno; 158 sc->mii_service = qsphy_service; 159 sc->mii_pdata = mii; 160 sc->mii_flags |= MIIF_NOISOLATE; 161 162 qsphy_reset(sc); 163 164 mii->mii_instance++; 165 166 sc->mii_capabilities = 167 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 168 device_printf(dev, " "); 169 mii_add_media(sc); 170 printf("\n"); 171 172 MIIBUS_MEDIAINIT(sc->mii_dev); 173 return (0); 174 } 175 176 static int 177 qsphy_service(sc, mii, cmd) 178 struct mii_softc *sc; 179 struct mii_data *mii; 180 int cmd; 181 { 182 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 183 int reg; 184 185 /* 186 * If we're not selected, then do nothing, just isolate, if 187 * changing media. 188 */ 189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 190 if (cmd == MII_MEDIACHG) { 191 reg = PHY_READ(sc, MII_BMCR); 192 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 193 } 194 195 return (0); 196 } 197 198 switch (cmd) { 199 case MII_POLLSTAT: 200 break; 201 202 case MII_MEDIACHG: 203 /* 204 * If the interface is not up, don't do anything. 205 */ 206 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 207 break; 208 209 switch (IFM_SUBTYPE(ife->ifm_media)) { 210 case IFM_AUTO: 211 /* 212 * If we're already in auto mode, just return. 213 */ 214 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 215 return (0); 216 217 (void) mii_phy_auto(sc); 218 break; 219 220 default: 221 /* 222 * BMCR data is stored in the ifmedia entry. 223 */ 224 PHY_WRITE(sc, MII_ANAR, 225 mii_anar(ife->ifm_media)); 226 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 227 } 228 break; 229 230 case MII_TICK: 231 /* 232 * Is the interface even up? 233 */ 234 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 235 return (0); 236 237 /* 238 * Only used for autonegotiation. 239 */ 240 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 241 break; 242 243 /* 244 * This PHY's autonegotiation doesn't need to be kicked. 245 */ 246 break; 247 } 248 249 /* Update the media status. */ 250 qsphy_status(sc); 251 252 /* Callback if something changed. */ 253 mii_phy_update(sc, cmd); 254 return (0); 255 } 256 257 static void 258 qsphy_status(sc) 259 struct mii_softc *sc; 260 { 261 struct mii_data *mii = sc->mii_pdata; 262 int bmsr, bmcr, pctl; 263 264 mii->mii_media_status = IFM_AVALID; 265 mii->mii_media_active = IFM_ETHER; 266 267 bmsr = PHY_READ(sc, MII_BMSR) | 268 PHY_READ(sc, MII_BMSR); 269 if (bmsr & BMSR_LINK) 270 mii->mii_media_status |= IFM_ACTIVE; 271 272 bmcr = PHY_READ(sc, MII_BMCR); 273 if (bmcr & BMCR_ISO) { 274 mii->mii_media_active |= IFM_NONE; 275 mii->mii_media_status = 0; 276 return; 277 } 278 279 if (bmcr & BMCR_LOOP) 280 mii->mii_media_active |= IFM_LOOP; 281 282 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 283 switch (pctl & PCTL_OPMASK) { 284 case PCTL_10_T: 285 mii->mii_media_active |= IFM_10_T; 286 break; 287 case PCTL_10_T_FDX: 288 mii->mii_media_active |= IFM_10_T|IFM_FDX; 289 break; 290 case PCTL_100_TX: 291 mii->mii_media_active |= IFM_100_TX; 292 break; 293 case PCTL_100_TX_FDX: 294 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 295 break; 296 case PCTL_100_T4: 297 mii->mii_media_active |= IFM_100_T4; 298 break; 299 case PCTL_AN: 300 mii->mii_media_active |= IFM_NONE; 301 break; 302 default: 303 /* Erg... this shouldn't happen. */ 304 mii->mii_media_active |= IFM_NONE; 305 break; 306 } 307 } 308 309 static void 310 qsphy_reset(sc) 311 struct mii_softc *sc; 312 { 313 314 mii_phy_reset(sc); 315 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 316 } 317