qsphy.c revision 330897
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-NetBSD AND 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__FBSDID("$FreeBSD: stable/11/sys/dev/mii/qsphy.c 330897 2018-03-14 03:19:51Z eadler $"); 62 63/* 64 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY 65 * datasheet from www.qualitysemi.com 66 */ 67 68#include <sys/param.h> 69#include <sys/systm.h> 70#include <sys/kernel.h> 71#include <sys/socket.h> 72#include <sys/errno.h> 73#include <sys/module.h> 74#include <sys/bus.h> 75 76#include <net/if.h> 77#include <net/if_media.h> 78 79#include <dev/mii/mii.h> 80#include <dev/mii/miivar.h> 81#include "miidevs.h" 82 83#include <dev/mii/qsphyreg.h> 84 85#include "miibus_if.h" 86 87static int qsphy_probe(device_t); 88static int qsphy_attach(device_t); 89 90static device_method_t qsphy_methods[] = { 91 /* device interface */ 92 DEVMETHOD(device_probe, qsphy_probe), 93 DEVMETHOD(device_attach, qsphy_attach), 94 DEVMETHOD(device_detach, mii_phy_detach), 95 DEVMETHOD(device_shutdown, bus_generic_shutdown), 96 DEVMETHOD_END 97}; 98 99static devclass_t qsphy_devclass; 100 101static driver_t qsphy_driver = { 102 "qsphy", 103 qsphy_methods, 104 sizeof(struct mii_softc) 105}; 106 107DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0); 108 109static int qsphy_service(struct mii_softc *, struct mii_data *, int); 110static void qsphy_reset(struct mii_softc *); 111static void qsphy_status(struct mii_softc *); 112 113static const struct mii_phydesc qsphys[] = { 114 MII_PHY_DESC(xxQUALSEMI, QS6612), 115 MII_PHY_END 116}; 117 118static const struct mii_phy_funcs qsphy_funcs = { 119 qsphy_service, 120 qsphy_status, 121 qsphy_reset 122}; 123 124static int 125qsphy_probe(device_t dev) 126{ 127 128 return (mii_phy_dev_probe(dev, qsphys, BUS_PROBE_DEFAULT)); 129} 130 131static int 132qsphy_attach(device_t dev) 133{ 134 135 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &qsphy_funcs, 1); 136 return (0); 137} 138 139static int 140qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 141{ 142 143 switch (cmd) { 144 case MII_POLLSTAT: 145 break; 146 147 case MII_MEDIACHG: 148 mii_phy_setmedia(sc); 149 break; 150 151 case MII_TICK: 152 /* 153 * This PHY's autonegotiation doesn't need to be kicked. 154 */ 155 break; 156 } 157 158 /* Update the media status. */ 159 PHY_STATUS(sc); 160 161 /* Callback if something changed. */ 162 mii_phy_update(sc, cmd); 163 return (0); 164} 165 166static void 167qsphy_status(struct mii_softc *sc) 168{ 169 struct mii_data *mii = sc->mii_pdata; 170 int bmsr, bmcr, pctl; 171 172 mii->mii_media_status = IFM_AVALID; 173 mii->mii_media_active = IFM_ETHER; 174 175 bmsr = PHY_READ(sc, MII_BMSR) | 176 PHY_READ(sc, MII_BMSR); 177 if (bmsr & BMSR_LINK) 178 mii->mii_media_status |= IFM_ACTIVE; 179 180 bmcr = PHY_READ(sc, MII_BMCR); 181 if (bmcr & BMCR_ISO) { 182 mii->mii_media_active |= IFM_NONE; 183 mii->mii_media_status = 0; 184 return; 185 } 186 187 if (bmcr & BMCR_LOOP) 188 mii->mii_media_active |= IFM_LOOP; 189 190 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 191 switch (pctl & PCTL_OPMASK) { 192 case PCTL_10_T: 193 mii->mii_media_active |= IFM_10_T|IFM_HDX; 194 break; 195 case PCTL_10_T_FDX: 196 mii->mii_media_active |= IFM_10_T|IFM_FDX; 197 break; 198 case PCTL_100_TX: 199 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 200 break; 201 case PCTL_100_TX_FDX: 202 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 203 break; 204 case PCTL_100_T4: 205 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 206 break; 207 case PCTL_AN: 208 mii->mii_media_active |= IFM_NONE; 209 break; 210 default: 211 /* Erg... this shouldn't happen. */ 212 mii->mii_media_active |= IFM_NONE; 213 break; 214 } 215 if ((mii->mii_media_active & IFM_FDX) != 0) 216 mii->mii_media_active |= mii_phy_flowstatus(sc); 217} 218 219static void 220qsphy_reset(struct mii_softc *sc) 221{ 222 223 mii_phy_reset(sc); 224 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 225} 226