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 const struct mii_phydesc qsphys[] = { 124 MII_PHY_DESC(QUALSEMI, QS6612), 125 MII_PHY_END 126 }; 127 128 static int 129 qsphy_probe(device_t dev) 130 { 131 132 return (mii_phy_dev_probe(dev, qsphys, BUS_PROBE_DEFAULT)); 133 } 134 135 static int 136 qsphy_attach(device_t dev) 137 { 138 struct mii_softc *sc; 139 struct mii_attach_args *ma; 140 struct mii_data *mii; 141 142 sc = device_get_softc(dev); 143 ma = device_get_ivars(dev); 144 sc->mii_dev = device_get_parent(dev); 145 mii = device_get_softc(sc->mii_dev); 146 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 147 148 sc->mii_inst = mii->mii_instance; 149 sc->mii_phy = ma->mii_phyno; 150 sc->mii_service = qsphy_service; 151 sc->mii_pdata = mii; 152 153 mii->mii_instance++; 154 155 qsphy_reset(sc); 156 157 sc->mii_capabilities = 158 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 159 device_printf(dev, " "); 160 mii_phy_add_media(sc); 161 printf("\n"); 162 163 MIIBUS_MEDIAINIT(sc->mii_dev); 164 return (0); 165 } 166 167 static int 168 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 169 { 170 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 171 int reg; 172 173 /* 174 * If we're not selected, then do nothing, just isolate, if 175 * changing media. 176 */ 177 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 178 if (cmd == MII_MEDIACHG) { 179 reg = PHY_READ(sc, MII_BMCR); 180 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 181 } 182 183 return (0); 184 } 185 186 switch (cmd) { 187 case MII_POLLSTAT: 188 break; 189 190 case MII_MEDIACHG: 191 /* 192 * If the interface is not up, don't do anything. 193 */ 194 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 195 break; 196 197 mii_phy_setmedia(sc); 198 break; 199 200 case MII_TICK: 201 /* 202 * Is the interface even up? 203 */ 204 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 205 return (0); 206 207 /* 208 * This PHY's autonegotiation doesn't need to be kicked. 209 */ 210 break; 211 } 212 213 /* Update the media status. */ 214 qsphy_status(sc); 215 216 /* Callback if something changed. */ 217 mii_phy_update(sc, cmd); 218 return (0); 219 } 220 221 static void 222 qsphy_status(struct mii_softc *sc) 223 { 224 struct mii_data *mii = sc->mii_pdata; 225 int bmsr, bmcr, pctl; 226 227 mii->mii_media_status = IFM_AVALID; 228 mii->mii_media_active = IFM_ETHER; 229 230 bmsr = PHY_READ(sc, MII_BMSR) | 231 PHY_READ(sc, MII_BMSR); 232 if (bmsr & BMSR_LINK) 233 mii->mii_media_status |= IFM_ACTIVE; 234 235 bmcr = PHY_READ(sc, MII_BMCR); 236 if (bmcr & BMCR_ISO) { 237 mii->mii_media_active |= IFM_NONE; 238 mii->mii_media_status = 0; 239 return; 240 } 241 242 if (bmcr & BMCR_LOOP) 243 mii->mii_media_active |= IFM_LOOP; 244 245 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 246 switch (pctl & PCTL_OPMASK) { 247 case PCTL_10_T: 248 mii->mii_media_active |= IFM_10_T; 249 break; 250 case PCTL_10_T_FDX: 251 mii->mii_media_active |= IFM_10_T|IFM_FDX; 252 break; 253 case PCTL_100_TX: 254 mii->mii_media_active |= IFM_100_TX; 255 break; 256 case PCTL_100_TX_FDX: 257 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 258 break; 259 case PCTL_100_T4: 260 mii->mii_media_active |= IFM_100_T4; 261 break; 262 case PCTL_AN: 263 mii->mii_media_active |= IFM_NONE; 264 break; 265 default: 266 /* Erg... this shouldn't happen. */ 267 mii->mii_media_active |= IFM_NONE; 268 break; 269 } 270 } 271 272 static void 273 qsphy_reset(struct mii_softc *sc) 274 { 275 276 mii_phy_reset(sc); 277 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 278 } 279