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 __FBSDID("$FreeBSD$"); 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 87 static int qsphy_probe(device_t); 88 static int qsphy_attach(device_t); 89 90 static 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 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, 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(xxQUALSEMI, QS6612), 113 MII_PHY_END 114 }; 115 116 static const struct mii_phy_funcs qsphy_funcs = { 117 qsphy_service, 118 qsphy_status, 119 qsphy_reset 120 }; 121 122 static int 123 qsphy_probe(device_t dev) 124 { 125 126 return (mii_phy_dev_probe(dev, qsphys, BUS_PROBE_DEFAULT)); 127 } 128 129 static int 130 qsphy_attach(device_t dev) 131 { 132 133 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &qsphy_funcs, 1); 134 return (0); 135 } 136 137 static int 138 qsphy_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 mii_phy_setmedia(sc); 147 break; 148 149 case MII_TICK: 150 /* 151 * This PHY's autonegotiation doesn't need to be kicked. 152 */ 153 break; 154 } 155 156 /* Update the media status. */ 157 PHY_STATUS(sc); 158 159 /* Callback if something changed. */ 160 mii_phy_update(sc, cmd); 161 return (0); 162 } 163 164 static void 165 qsphy_status(struct mii_softc *sc) 166 { 167 struct mii_data *mii = sc->mii_pdata; 168 int bmsr, bmcr, pctl; 169 170 mii->mii_media_status = IFM_AVALID; 171 mii->mii_media_active = IFM_ETHER; 172 173 bmsr = PHY_READ(sc, MII_BMSR) | 174 PHY_READ(sc, MII_BMSR); 175 if (bmsr & BMSR_LINK) 176 mii->mii_media_status |= IFM_ACTIVE; 177 178 bmcr = PHY_READ(sc, MII_BMCR); 179 if (bmcr & BMCR_ISO) { 180 mii->mii_media_active |= IFM_NONE; 181 mii->mii_media_status = 0; 182 return; 183 } 184 185 if (bmcr & BMCR_LOOP) 186 mii->mii_media_active |= IFM_LOOP; 187 188 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 189 switch (pctl & PCTL_OPMASK) { 190 case PCTL_10_T: 191 mii->mii_media_active |= IFM_10_T|IFM_HDX; 192 break; 193 case PCTL_10_T_FDX: 194 mii->mii_media_active |= IFM_10_T|IFM_FDX; 195 break; 196 case PCTL_100_TX: 197 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 198 break; 199 case PCTL_100_TX_FDX: 200 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 201 break; 202 case PCTL_100_T4: 203 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 204 break; 205 case PCTL_AN: 206 mii->mii_media_active |= IFM_NONE; 207 break; 208 default: 209 /* Erg... this shouldn't happen. */ 210 mii->mii_media_active |= IFM_NONE; 211 break; 212 } 213 if ((mii->mii_media_active & IFM_FDX) != 0) 214 mii->mii_media_active |= mii_phy_flowstatus(sc); 215 } 216 217 static void 218 qsphy_reset(struct mii_softc *sc) 219 { 220 221 mii_phy_reset(sc); 222 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 223 } 224