1 /* $OpenBSD: qsphy.c,v 1.13 2005/02/19 06:00:04 brad 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 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 * 40 * $FreeBSD: src/sys/dev/mii/qsphy.c,v 1.1.2.2 2002/10/21 21:21:42 semenu Exp $ 41 */ 42 43 /* 44 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by Manuel Bouyer. 57 * 4. The name of the author may not be used to endorse or promote products 58 * derived from this software without specific prior written permission. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 61 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 62 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 63 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 64 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 65 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 66 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 67 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 68 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 69 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 70 */ 71 72 /* 73 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY 74 * datasheet from www.qualitysemi.com 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/kernel.h> 80 #include <sys/socket.h> 81 #include <sys/errno.h> 82 #include <sys/module.h> 83 #include <sys/bus.h> 84 85 #include <net/if.h> 86 #include <net/if_media.h> 87 88 #include "mii.h" 89 #include "miivar.h" 90 #include "miidevs.h" 91 92 #include "qsphyreg.h" 93 94 #include "miibus_if.h" 95 96 static int qsphy_probe (device_t); 97 static int qsphy_attach (device_t); 98 99 static device_method_t qsphy_methods[] = { 100 /* device interface */ 101 DEVMETHOD(device_probe, qsphy_probe), 102 DEVMETHOD(device_attach, qsphy_attach), 103 DEVMETHOD(device_detach, ukphy_detach), 104 DEVMETHOD(device_shutdown, bus_generic_shutdown), 105 DEVMETHOD_END 106 }; 107 108 static const struct mii_phydesc qsphys[] = { 109 MII_PHYDESC(QUALSEMI, QS6612), 110 MII_PHYDESC_NULL 111 }; 112 113 static devclass_t qsphy_devclass; 114 115 static driver_t qsphy_driver = { 116 "qsphy", 117 qsphy_methods, 118 sizeof(struct mii_softc) 119 }; 120 121 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, NULL, NULL); 122 123 static int qsphy_service(struct mii_softc *, struct mii_data *, int); 124 static void qsphy_reset(struct mii_softc *); 125 static void qsphy_status(struct mii_softc *); 126 127 static int 128 qsphy_probe(device_t dev) 129 { 130 struct mii_attach_args *ma = device_get_ivars(dev); 131 const struct mii_phydesc *mpd; 132 133 mpd = mii_phy_match(ma, qsphys); 134 if (mpd != NULL) { 135 device_set_desc(dev, mpd->mpd_name); 136 return (0); 137 } 138 return (ENXIO); 139 } 140 141 static int 142 qsphy_attach(device_t dev) 143 { 144 struct mii_softc *sc; 145 struct mii_attach_args *ma; 146 struct mii_data *mii; 147 148 sc = device_get_softc(dev); 149 ma = device_get_ivars(dev); 150 mii_softc_init(sc, ma); 151 sc->mii_dev = device_get_parent(dev); 152 mii = device_get_softc(sc->mii_dev); 153 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 154 155 sc->mii_inst = mii->mii_instance; 156 sc->mii_service = qsphy_service; 157 sc->mii_reset = qsphy_reset; 158 sc->mii_pdata = mii; 159 sc->mii_flags |= MIIF_NOISOLATE; 160 161 qsphy_reset(sc); 162 163 mii->mii_instance++; 164 165 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 166 device_printf(dev, " "); 167 if (sc->mii_capabilities & BMSR_MEDIAMASK) 168 mii_phy_add_media(sc); 169 else 170 kprintf("no media present"); 171 kprintf("\n"); 172 173 MIIBUS_MEDIAINIT(sc->mii_dev); 174 return (0); 175 } 176 177 static int 178 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 179 { 180 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 181 int reg; 182 183 /* 184 * If we're not selected, then do nothing, just isolate, if 185 * changing media. 186 */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 188 if (cmd == MII_MEDIACHG) { 189 reg = PHY_READ(sc, MII_BMCR); 190 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 191 } 192 193 return (0); 194 } 195 196 switch (cmd) { 197 case MII_POLLSTAT: 198 break; 199 200 case MII_MEDIACHG: 201 /* 202 * If the interface is not up, don't do anything. 203 */ 204 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 205 break; 206 207 mii_phy_set_media(sc); 208 break; 209 210 case MII_TICK: 211 /* 212 * Is the interface even up? 213 */ 214 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 215 return (0); 216 217 /* 218 * Only used for autonegotiation. 219 */ 220 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 221 break; 222 223 /* 224 * This PHY's autonegotiation doesn't need to be kicked. 225 */ 226 break; 227 } 228 229 /* Update the media status. */ 230 qsphy_status(sc); 231 232 /* Callback if something changed. */ 233 mii_phy_update(sc, cmd); 234 return (0); 235 } 236 237 static void 238 qsphy_status(struct mii_softc *sc) 239 { 240 struct mii_data *mii = sc->mii_pdata; 241 int bmsr, bmcr, pctl; 242 243 mii->mii_media_status = IFM_AVALID; 244 mii->mii_media_active = IFM_ETHER; 245 246 bmsr = PHY_READ(sc, MII_BMSR) | 247 PHY_READ(sc, MII_BMSR); 248 if (bmsr & BMSR_LINK) 249 mii->mii_media_status |= IFM_ACTIVE; 250 251 bmcr = PHY_READ(sc, MII_BMCR); 252 if (bmcr & BMCR_ISO) { 253 mii->mii_media_active |= IFM_NONE; 254 mii->mii_media_status = 0; 255 return; 256 } 257 258 if (bmcr & BMCR_LOOP) 259 mii->mii_media_active |= IFM_LOOP; 260 261 if (bmcr & BMCR_AUTOEN) { 262 if ((bmsr & BMSR_ACOMP) == 0) { 263 /* Erg, still trying, I guess... */ 264 mii->mii_media_active |= IFM_NONE; 265 return; 266 } 267 268 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 269 switch (pctl & PCTL_OPMASK) { 270 case PCTL_10_T: 271 mii->mii_media_active |= IFM_10_T; 272 break; 273 case PCTL_10_T_FDX: 274 mii->mii_media_active |= IFM_10_T|IFM_FDX; 275 break; 276 case PCTL_100_TX: 277 mii->mii_media_active |= IFM_100_TX; 278 break; 279 case PCTL_100_TX_FDX: 280 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 281 break; 282 case PCTL_100_T4: 283 mii->mii_media_active |= IFM_100_T4; 284 break; 285 case PCTL_AN: 286 mii->mii_media_active |= IFM_NONE; 287 break; 288 default: 289 /* Erg... this shouldn't happen. */ 290 mii->mii_media_active |= IFM_NONE; 291 break; 292 } 293 } else { 294 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media; 295 } 296 } 297 298 static void 299 qsphy_reset(struct mii_softc *sc) 300 { 301 mii_phy_reset(sc); 302 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 303 } 304