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 #include <sys/cdefs.h> 71 __FBSDID("$FreeBSD$"); 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 "miidevs.h" 92 93 #include <dev/mii/qsphyreg.h> 94 95 #include "miibus_if.h" 96 97 static int qsphy_probe(device_t); 98 static int qsphy_attach(device_t); 99 100 static device_method_t qsphy_methods[] = { 101 /* device interface */ 102 DEVMETHOD(device_probe, qsphy_probe), 103 DEVMETHOD(device_attach, qsphy_attach), 104 DEVMETHOD(device_detach, mii_phy_detach), 105 DEVMETHOD(device_shutdown, bus_generic_shutdown), 106 { 0, 0 } 107 }; 108 109 static devclass_t qsphy_devclass; 110 111 static driver_t qsphy_driver = { 112 "qsphy", 113 qsphy_methods, 114 sizeof(struct mii_softc) 115 }; 116 117 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0); 118 119 static int qsphy_service(struct mii_softc *, struct mii_data *, int); 120 static void qsphy_reset(struct mii_softc *); 121 static void qsphy_status(struct mii_softc *); 122 123 static int 124 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 141 qsphy_attach(dev) 142 device_t dev; 143 { 144 struct mii_softc *sc; 145 struct mii_attach_args *ma; 146 struct mii_data *mii; 147 148 sc = device_get_softc(dev); 149 ma = device_get_ivars(dev); 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 mii_add_media(sc); 168 printf("\n"); 169 170 MIIBUS_MEDIAINIT(sc->mii_dev); 171 return (0); 172 } 173 174 static int 175 qsphy_service(sc, mii, cmd) 176 struct mii_softc *sc; 177 struct mii_data *mii; 178 int cmd; 179 { 180 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 181 int reg; 182 183 /* 184 * If we're not selected, then do nothing, just isolate, if 185 * changing media. 186 */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 188 if (cmd == MII_MEDIACHG) { 189 reg = PHY_READ(sc, MII_BMCR); 190 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 191 } 192 193 return (0); 194 } 195 196 switch (cmd) { 197 case MII_POLLSTAT: 198 break; 199 200 case MII_MEDIACHG: 201 /* 202 * If the interface is not up, don't do anything. 203 */ 204 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 205 break; 206 207 switch (IFM_SUBTYPE(ife->ifm_media)) { 208 case IFM_AUTO: 209 /* 210 * If we're already in auto mode, just return. 211 */ 212 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) 213 return (0); 214 215 (void) mii_phy_auto(sc); 216 break; 217 218 default: 219 /* 220 * BMCR data is stored in the ifmedia entry. 221 */ 222 PHY_WRITE(sc, MII_ANAR, 223 mii_anar(ife->ifm_media)); 224 PHY_WRITE(sc, MII_BMCR, ife->ifm_data); 225 } 226 break; 227 228 case MII_TICK: 229 /* 230 * Is the interface even up? 231 */ 232 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 233 return (0); 234 235 /* 236 * Only used for autonegotiation. 237 */ 238 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 239 break; 240 241 /* 242 * This PHY's autonegotiation doesn't need to be kicked. 243 */ 244 break; 245 } 246 247 /* Update the media status. */ 248 qsphy_status(sc); 249 250 /* Callback if something changed. */ 251 mii_phy_update(sc, cmd); 252 return (0); 253 } 254 255 static void 256 qsphy_status(sc) 257 struct mii_softc *sc; 258 { 259 struct mii_data *mii = sc->mii_pdata; 260 int bmsr, bmcr, pctl; 261 262 mii->mii_media_status = IFM_AVALID; 263 mii->mii_media_active = IFM_ETHER; 264 265 bmsr = PHY_READ(sc, MII_BMSR) | 266 PHY_READ(sc, MII_BMSR); 267 if (bmsr & BMSR_LINK) 268 mii->mii_media_status |= IFM_ACTIVE; 269 270 bmcr = PHY_READ(sc, MII_BMCR); 271 if (bmcr & BMCR_ISO) { 272 mii->mii_media_active |= IFM_NONE; 273 mii->mii_media_status = 0; 274 return; 275 } 276 277 if (bmcr & BMCR_LOOP) 278 mii->mii_media_active |= IFM_LOOP; 279 280 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 281 switch (pctl & PCTL_OPMASK) { 282 case PCTL_10_T: 283 mii->mii_media_active |= IFM_10_T; 284 break; 285 case PCTL_10_T_FDX: 286 mii->mii_media_active |= IFM_10_T|IFM_FDX; 287 break; 288 case PCTL_100_TX: 289 mii->mii_media_active |= IFM_100_TX; 290 break; 291 case PCTL_100_TX_FDX: 292 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 293 break; 294 case PCTL_100_T4: 295 mii->mii_media_active |= IFM_100_T4; 296 break; 297 case PCTL_AN: 298 mii->mii_media_active |= IFM_NONE; 299 break; 300 default: 301 /* Erg... this shouldn't happen. */ 302 mii->mii_media_active |= IFM_NONE; 303 break; 304 } 305 } 306 307 static void 308 qsphy_reset(sc) 309 struct mii_softc *sc; 310 { 311 312 mii_phy_reset(sc); 313 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 314 } 315