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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /*- 35 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 55 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 56 */ 57 58 #include <sys/cdefs.h> 59 __FBSDID("$FreeBSD$"); 60 61 /* 62 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY 63 * datasheet from www.qualitysemi.com 64 */ 65 66 #include <sys/param.h> 67 #include <sys/systm.h> 68 #include <sys/kernel.h> 69 #include <sys/socket.h> 70 #include <sys/errno.h> 71 #include <sys/module.h> 72 #include <sys/bus.h> 73 74 #include <net/if.h> 75 #include <net/if_media.h> 76 77 #include <dev/mii/mii.h> 78 #include <dev/mii/miivar.h> 79 #include "miidevs.h" 80 81 #include <dev/mii/qsphyreg.h> 82 83 #include "miibus_if.h" 84 85 static int qsphy_probe(device_t); 86 static int qsphy_attach(device_t); 87 88 static device_method_t qsphy_methods[] = { 89 /* device interface */ 90 DEVMETHOD(device_probe, qsphy_probe), 91 DEVMETHOD(device_attach, qsphy_attach), 92 DEVMETHOD(device_detach, mii_phy_detach), 93 DEVMETHOD(device_shutdown, bus_generic_shutdown), 94 { 0, 0 } 95 }; 96 97 static devclass_t qsphy_devclass; 98 99 static driver_t qsphy_driver = { 100 "qsphy", 101 qsphy_methods, 102 sizeof(struct mii_softc) 103 }; 104 105 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0); 106 107 static int qsphy_service(struct mii_softc *, struct mii_data *, int); 108 static void qsphy_reset(struct mii_softc *); 109 static void qsphy_status(struct mii_softc *); 110 111 static const struct mii_phydesc qsphys[] = { 112 MII_PHY_DESC(QUALSEMI, QS6612), 113 MII_PHY_END 114 }; 115 116 static int 117 qsphy_probe(device_t dev) 118 { 119 120 return (mii_phy_dev_probe(dev, qsphys, BUS_PROBE_DEFAULT)); 121 } 122 123 static int 124 qsphy_attach(device_t dev) 125 { 126 struct mii_softc *sc; 127 struct mii_attach_args *ma; 128 struct mii_data *mii; 129 130 sc = device_get_softc(dev); 131 ma = device_get_ivars(dev); 132 sc->mii_dev = device_get_parent(dev); 133 mii = ma->mii_data; 134 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 135 136 sc->mii_flags = miibus_get_flags(dev); 137 sc->mii_inst = mii->mii_instance++; 138 sc->mii_phy = ma->mii_phyno; 139 sc->mii_service = qsphy_service; 140 sc->mii_pdata = mii; 141 142 qsphy_reset(sc); 143 144 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 145 device_printf(dev, " "); 146 mii_phy_add_media(sc); 147 printf("\n"); 148 149 MIIBUS_MEDIAINIT(sc->mii_dev); 150 return (0); 151 } 152 153 static int 154 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 155 { 156 157 switch (cmd) { 158 case MII_POLLSTAT: 159 break; 160 161 case MII_MEDIACHG: 162 /* 163 * If the interface is not up, don't do anything. 164 */ 165 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 166 break; 167 168 mii_phy_setmedia(sc); 169 break; 170 171 case MII_TICK: 172 /* 173 * Is the interface even up? 174 */ 175 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 176 return (0); 177 178 /* 179 * This PHY's autonegotiation doesn't need to be kicked. 180 */ 181 break; 182 } 183 184 /* Update the media status. */ 185 qsphy_status(sc); 186 187 /* Callback if something changed. */ 188 mii_phy_update(sc, cmd); 189 return (0); 190 } 191 192 static void 193 qsphy_status(struct mii_softc *sc) 194 { 195 struct mii_data *mii = sc->mii_pdata; 196 int bmsr, bmcr, pctl; 197 198 mii->mii_media_status = IFM_AVALID; 199 mii->mii_media_active = IFM_ETHER; 200 201 bmsr = PHY_READ(sc, MII_BMSR) | 202 PHY_READ(sc, MII_BMSR); 203 if (bmsr & BMSR_LINK) 204 mii->mii_media_status |= IFM_ACTIVE; 205 206 bmcr = PHY_READ(sc, MII_BMCR); 207 if (bmcr & BMCR_ISO) { 208 mii->mii_media_active |= IFM_NONE; 209 mii->mii_media_status = 0; 210 return; 211 } 212 213 if (bmcr & BMCR_LOOP) 214 mii->mii_media_active |= IFM_LOOP; 215 216 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 217 switch (pctl & PCTL_OPMASK) { 218 case PCTL_10_T: 219 mii->mii_media_active |= IFM_10_T|IFM_HDX; 220 break; 221 case PCTL_10_T_FDX: 222 mii->mii_media_active |= IFM_10_T|IFM_FDX; 223 break; 224 case PCTL_100_TX: 225 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 226 break; 227 case PCTL_100_TX_FDX: 228 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 229 break; 230 case PCTL_100_T4: 231 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 232 break; 233 case PCTL_AN: 234 mii->mii_media_active |= IFM_NONE; 235 break; 236 default: 237 /* Erg... this shouldn't happen. */ 238 mii->mii_media_active |= IFM_NONE; 239 break; 240 } 241 } 242 243 static void 244 qsphy_reset(struct mii_softc *sc) 245 { 246 247 mii_phy_reset(sc); 248 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 249 } 250