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 * SPDX-License-Identifier: BSD-2-Clause 6 * 7 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to The NetBSD Foundation 11 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 12 * NASA Ames Research Center. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 /*- 37 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 49 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 50 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 51 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 52 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 53 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 54 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 55 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 56 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 57 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 58 */ 59 60 #include <sys/cdefs.h> 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 DEVMETHOD_END 95 }; 96 97 static driver_t qsphy_driver = { 98 "qsphy", 99 qsphy_methods, 100 sizeof(struct mii_softc) 101 }; 102 103 DRIVER_MODULE(qsphy, miibus, qsphy_driver, 0, 0); 104 105 static int qsphy_service(struct mii_softc *, struct mii_data *, int); 106 static void qsphy_reset(struct mii_softc *); 107 static void qsphy_status(struct mii_softc *); 108 109 static const struct mii_phydesc qsphys[] = { 110 MII_PHY_DESC(xxQUALSEMI, QS6612), 111 MII_PHY_END 112 }; 113 114 static const struct mii_phy_funcs qsphy_funcs = { 115 qsphy_service, 116 qsphy_status, 117 qsphy_reset 118 }; 119 120 static int 121 qsphy_probe(device_t dev) 122 { 123 124 return (mii_phy_dev_probe(dev, qsphys, BUS_PROBE_DEFAULT)); 125 } 126 127 static int 128 qsphy_attach(device_t dev) 129 { 130 131 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &qsphy_funcs, 1); 132 return (0); 133 } 134 135 static int 136 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 137 { 138 139 switch (cmd) { 140 case MII_POLLSTAT: 141 break; 142 143 case MII_MEDIACHG: 144 mii_phy_setmedia(sc); 145 break; 146 147 case MII_TICK: 148 /* 149 * This PHY's autonegotiation doesn't need to be kicked. 150 */ 151 break; 152 } 153 154 /* Update the media status. */ 155 PHY_STATUS(sc); 156 157 /* Callback if something changed. */ 158 mii_phy_update(sc, cmd); 159 return (0); 160 } 161 162 static void 163 qsphy_status(struct mii_softc *sc) 164 { 165 struct mii_data *mii = sc->mii_pdata; 166 int bmsr, bmcr, pctl; 167 168 mii->mii_media_status = IFM_AVALID; 169 mii->mii_media_active = IFM_ETHER; 170 171 bmsr = PHY_READ(sc, MII_BMSR) | 172 PHY_READ(sc, MII_BMSR); 173 if (bmsr & BMSR_LINK) 174 mii->mii_media_status |= IFM_ACTIVE; 175 176 bmcr = PHY_READ(sc, MII_BMCR); 177 if (bmcr & BMCR_ISO) { 178 mii->mii_media_active |= IFM_NONE; 179 mii->mii_media_status = 0; 180 return; 181 } 182 183 if (bmcr & BMCR_LOOP) 184 mii->mii_media_active |= IFM_LOOP; 185 186 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 187 switch (pctl & PCTL_OPMASK) { 188 case PCTL_10_T: 189 mii->mii_media_active |= IFM_10_T|IFM_HDX; 190 break; 191 case PCTL_10_T_FDX: 192 mii->mii_media_active |= IFM_10_T|IFM_FDX; 193 break; 194 case PCTL_100_TX: 195 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 196 break; 197 case PCTL_100_TX_FDX: 198 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 199 break; 200 case PCTL_100_T4: 201 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 202 break; 203 case PCTL_AN: 204 mii->mii_media_active |= IFM_NONE; 205 break; 206 default: 207 /* Erg... this shouldn't happen. */ 208 mii->mii_media_active |= IFM_NONE; 209 break; 210 } 211 if ((mii->mii_media_active & IFM_FDX) != 0) 212 mii->mii_media_active |= mii_phy_flowstatus(sc); 213 } 214 215 static void 216 qsphy_reset(struct mii_softc *sc) 217 { 218 219 mii_phy_reset(sc); 220 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 221 } 222