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 85static int qsphy_probe(device_t); 86static int qsphy_attach(device_t); 87 88static 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 97static devclass_t qsphy_devclass; 98 99static driver_t qsphy_driver = { 100 "qsphy", 101 qsphy_methods, 102 sizeof(struct mii_softc) 103}; 104 105DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0); 106 107static int qsphy_service(struct mii_softc *, struct mii_data *, int); 108static void qsphy_reset(struct mii_softc *); 109static void qsphy_status(struct mii_softc *); 110 111static const struct mii_phydesc qsphys[] = { 112 MII_PHY_DESC(xxQUALSEMI, QS6612), 113 MII_PHY_END 114}; 115 116static const struct mii_phy_funcs qsphy_funcs = { 117 qsphy_service, 118 qsphy_status, 119 qsphy_reset 120}; 121 122static int 123qsphy_probe(device_t dev) 124{ 125 126 return (mii_phy_dev_probe(dev, qsphys, BUS_PROBE_DEFAULT)); 127} 128 129static int 130qsphy_attach(device_t dev) 131{ 132 133 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &qsphy_funcs, 1); 134 return (0); 135} 136 137static int 138qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 139{ 140 141 switch (cmd) { 142 case MII_POLLSTAT: 143 break; 144 145 case MII_MEDIACHG: 146 /* 147 * If the interface is not up, don't do anything. 148 */ 149 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 150 break; 151 152 mii_phy_setmedia(sc); 153 break; 154 155 case MII_TICK: 156 /* 157 * Is the interface even up? 158 */ 159 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 160 return (0); 161 162 /* 163 * This PHY's autonegotiation doesn't need to be kicked. 164 */ 165 break; 166 } 167 168 /* Update the media status. */ 169 PHY_STATUS(sc); 170 171 /* Callback if something changed. */ 172 mii_phy_update(sc, cmd); 173 return (0); 174} 175 176static void 177qsphy_status(struct mii_softc *sc) 178{ 179 struct mii_data *mii = sc->mii_pdata; 180 int bmsr, bmcr, pctl; 181 182 mii->mii_media_status = IFM_AVALID; 183 mii->mii_media_active = IFM_ETHER; 184 185 bmsr = PHY_READ(sc, MII_BMSR) | 186 PHY_READ(sc, MII_BMSR); 187 if (bmsr & BMSR_LINK) 188 mii->mii_media_status |= IFM_ACTIVE; 189 190 bmcr = PHY_READ(sc, MII_BMCR); 191 if (bmcr & BMCR_ISO) { 192 mii->mii_media_active |= IFM_NONE; 193 mii->mii_media_status = 0; 194 return; 195 } 196 197 if (bmcr & BMCR_LOOP) 198 mii->mii_media_active |= IFM_LOOP; 199 200 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 201 switch (pctl & PCTL_OPMASK) { 202 case PCTL_10_T: 203 mii->mii_media_active |= IFM_10_T|IFM_HDX; 204 break; 205 case PCTL_10_T_FDX: 206 mii->mii_media_active |= IFM_10_T|IFM_FDX; 207 break; 208 case PCTL_100_TX: 209 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 210 break; 211 case PCTL_100_TX_FDX: 212 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 213 break; 214 case PCTL_100_T4: 215 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 216 break; 217 case PCTL_AN: 218 mii->mii_media_active |= IFM_NONE; 219 break; 220 default: 221 /* Erg... this shouldn't happen. */ 222 mii->mii_media_active |= IFM_NONE; 223 break; 224 } 225 if ((mii->mii_media_active & IFM_FDX) != 0) 226 mii->mii_media_active |= mii_phy_flowstatus(sc); 227} 228 229static void 230qsphy_reset(struct mii_softc *sc) 231{ 232 233 mii_phy_reset(sc); 234 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 235} 236