qsphy.c revision 1.51
1 /* $NetBSD: qsphy.c,v 1.51 2019/02/24 17:22:21 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 */ 56 57 /* 58 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY 59 * datasheet from www.qualitysemi.com 60 */ 61 62 #include <sys/cdefs.h> 63 __KERNEL_RCSID(0, "$NetBSD: qsphy.c,v 1.51 2019/02/24 17:22:21 christos Exp $"); 64 65 #include <sys/param.h> 66 #include <sys/systm.h> 67 #include <sys/kernel.h> 68 #include <sys/device.h> 69 #include <sys/socket.h> 70 71 #include <net/if.h> 72 #include <net/if_media.h> 73 74 #include <dev/mii/mii.h> 75 #include <dev/mii/miivar.h> 76 #include <dev/mii/miidevs.h> 77 78 #include <dev/mii/qsphyreg.h> 79 80 static int qsphymatch(device_t, cfdata_t, void *); 81 static void qsphyattach(device_t, device_t, void *); 82 83 CFATTACH_DECL_NEW(qsphy, sizeof(struct mii_softc), 84 qsphymatch, qsphyattach, mii_phy_detach, mii_phy_activate); 85 86 static int qsphy_service(struct mii_softc *, struct mii_data *, int); 87 static void qsphy_status(struct mii_softc *); 88 static void qsphy_reset(struct mii_softc *); 89 90 static const struct mii_phy_funcs qsphy_funcs = { 91 qsphy_service, qsphy_status, qsphy_reset, 92 }; 93 94 static const struct mii_phydesc qsphys[] = { 95 MII_PHY_DESC(xxQUALSEMI, QS6612), 96 MII_PHY_END, 97 }; 98 99 static int 100 qsphymatch(device_t parent, cfdata_t match, void *aux) 101 { 102 struct mii_attach_args *ma = aux; 103 104 if (mii_phy_match(ma, qsphys) != NULL) 105 return (10); 106 107 return (0); 108 } 109 110 static void 111 qsphyattach(device_t parent, device_t self, void *aux) 112 { 113 struct mii_softc *sc = device_private(self); 114 struct mii_attach_args *ma = aux; 115 struct mii_data *mii = ma->mii_data; 116 const struct mii_phydesc *mpd; 117 118 mpd = mii_phy_match(ma, qsphys); 119 aprint_naive(": Media interface\n"); 120 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 121 122 sc->mii_dev = self; 123 sc->mii_inst = mii->mii_instance; 124 sc->mii_phy = ma->mii_phyno; 125 sc->mii_funcs = &qsphy_funcs; 126 sc->mii_pdata = mii; 127 sc->mii_flags = ma->mii_flags; 128 sc->mii_anegticks = MII_ANEGTICKS; 129 130 PHY_RESET(sc); 131 132 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 133 sc->mii_capabilities &= ma->mii_capmask; 134 aprint_normal_dev(self, ""); 135 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 136 aprint_error("no media present"); 137 else 138 mii_phy_add_media(sc); 139 aprint_normal("\n"); 140 } 141 142 static int 143 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 144 { 145 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 146 uint16_t reg; 147 148 switch (cmd) { 149 case MII_POLLSTAT: 150 /* 151 * If we're not polling our PHY instance, just return. 152 */ 153 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 154 return (0); 155 break; 156 157 case MII_MEDIACHG: 158 /* 159 * If the media indicates a different PHY instance, 160 * isolate ourselves. 161 */ 162 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 163 PHY_READ(sc, MII_BMCR, ®); 164 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 165 return (0); 166 } 167 168 /* 169 * If the interface is not up, don't do anything. 170 */ 171 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 172 break; 173 174 mii_phy_setmedia(sc); 175 break; 176 177 case MII_TICK: 178 /* 179 * If we're not currently selected, just return. 180 */ 181 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 182 return (0); 183 184 if (mii_phy_tick(sc) == EJUSTRETURN) 185 return (0); 186 break; 187 188 case MII_DOWN: 189 mii_phy_down(sc); 190 return (0); 191 } 192 193 /* Update the media status. */ 194 mii_phy_status(sc); 195 196 /* Callback if something changed. */ 197 mii_phy_update(sc, cmd); 198 return (0); 199 } 200 201 static void 202 qsphy_status(struct mii_softc *sc) 203 { 204 struct mii_data *mii = sc->mii_pdata; 205 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 206 uint16_t bmsr, bmcr, pctl; 207 208 mii->mii_media_status = IFM_AVALID; 209 mii->mii_media_active = IFM_ETHER; 210 211 PHY_READ(sc, MII_BMSR, &bmsr); 212 PHY_READ(sc, MII_BMSR, &bmsr); 213 if (bmsr & BMSR_LINK) 214 mii->mii_media_status |= IFM_ACTIVE; 215 216 PHY_READ(sc, MII_BMCR, &bmcr); 217 if (bmcr & BMCR_ISO) { 218 mii->mii_media_active |= IFM_NONE; 219 mii->mii_media_status = 0; 220 return; 221 } 222 223 if (bmcr & BMCR_LOOP) 224 mii->mii_media_active |= IFM_LOOP; 225 226 if (bmcr & BMCR_AUTOEN) { 227 if ((bmsr & BMSR_ACOMP) == 0) { 228 /* Erg, still trying, I guess... */ 229 mii->mii_media_active |= IFM_NONE; 230 return; 231 } 232 PHY_READ(sc, MII_QSPHY_PCTL, &pctl); 233 PHY_READ(sc, MII_QSPHY_PCTL, &pctl); 234 switch (pctl & PCTL_OPMASK) { 235 case PCTL_10_T: 236 mii->mii_media_active |= IFM_10_T|IFM_HDX; 237 break; 238 case PCTL_10_T_FDX: 239 mii->mii_media_active |= IFM_10_T|IFM_FDX; 240 break; 241 case PCTL_100_TX: 242 mii->mii_media_active |= IFM_100_TX|IFM_HDX; 243 break; 244 case PCTL_100_TX_FDX: 245 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 246 break; 247 case PCTL_100_T4: 248 mii->mii_media_active |= IFM_100_T4|IFM_HDX; 249 break; 250 default: 251 /* Erg... this shouldn't happen. */ 252 mii->mii_media_active |= IFM_NONE; 253 break; 254 } 255 } else 256 mii->mii_media_active = ife->ifm_media; 257 } 258 259 static void 260 qsphy_reset(struct mii_softc *sc) 261 { 262 263 mii_phy_reset(sc); 264 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 265 } 266
Indexes created Wed Sep 24 14:09:57 GMT 2025