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_var.h> 87 #include <net/if_media.h> 88 89 #include "mii.h" 90 #include "miivar.h" 91 #include "miidevs.h" 92 93 #include "qsphyreg.h" 94 95 #include "miibus_if.h" 96 97 static int qsphy_probe (device_t); 98 static int qsphy_attach (device_t); 99 100 static device_method_t qsphy_methods[] = { 101 /* device interface */ 102 DEVMETHOD(device_probe, qsphy_probe), 103 DEVMETHOD(device_attach, qsphy_attach), 104 DEVMETHOD(device_detach, ukphy_detach), 105 DEVMETHOD(device_shutdown, bus_generic_shutdown), 106 DEVMETHOD_END 107 }; 108 109 static const struct mii_phydesc qsphys[] = { 110 MII_PHYDESC(QUALSEMI, QS6612), 111 MII_PHYDESC_NULL 112 }; 113 114 static devclass_t qsphy_devclass; 115 116 static driver_t qsphy_driver = { 117 "qsphy", 118 qsphy_methods, 119 sizeof(struct mii_softc) 120 }; 121 122 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, NULL, NULL); 123 124 static int qsphy_service(struct mii_softc *, struct mii_data *, int); 125 static void qsphy_reset(struct mii_softc *); 126 static void qsphy_status(struct mii_softc *); 127 128 static int 129 qsphy_probe(device_t dev) 130 { 131 struct mii_attach_args *ma = device_get_ivars(dev); 132 const struct mii_phydesc *mpd; 133 134 mpd = mii_phy_match(ma, qsphys); 135 if (mpd != NULL) { 136 device_set_desc(dev, mpd->mpd_name); 137 return (0); 138 } 139 return (ENXIO); 140 } 141 142 static int 143 qsphy_attach(device_t dev) 144 { 145 struct mii_softc *sc; 146 struct mii_attach_args *ma; 147 struct mii_data *mii; 148 149 sc = device_get_softc(dev); 150 ma = device_get_ivars(dev); 151 mii_softc_init(sc, ma); 152 sc->mii_dev = device_get_parent(dev); 153 mii = device_get_softc(sc->mii_dev); 154 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 155 156 sc->mii_inst = mii->mii_instance; 157 sc->mii_service = qsphy_service; 158 sc->mii_reset = qsphy_reset; 159 sc->mii_pdata = mii; 160 sc->mii_flags |= MIIF_NOISOLATE; 161 162 qsphy_reset(sc); 163 164 mii->mii_instance++; 165 166 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 167 device_printf(dev, " "); 168 if (sc->mii_capabilities & BMSR_MEDIAMASK) 169 mii_phy_add_media(sc); 170 else 171 kprintf("no media present"); 172 kprintf("\n"); 173 174 MIIBUS_MEDIAINIT(sc->mii_dev); 175 return (0); 176 } 177 178 static int 179 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 180 { 181 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 182 int reg; 183 184 /* 185 * If we're not selected, then do nothing, just isolate, if 186 * changing media. 187 */ 188 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 189 if (cmd == MII_MEDIACHG) { 190 reg = PHY_READ(sc, MII_BMCR); 191 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 192 } 193 194 return (0); 195 } 196 197 switch (cmd) { 198 case MII_POLLSTAT: 199 break; 200 201 case MII_MEDIACHG: 202 /* 203 * If the interface is not up, don't do anything. 204 */ 205 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 206 break; 207 208 mii_phy_set_media(sc); 209 break; 210 211 case MII_TICK: 212 /* 213 * Is the interface even up? 214 */ 215 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 216 return (0); 217 218 /* 219 * Only used for autonegotiation. 220 */ 221 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 222 break; 223 224 /* 225 * This PHY's autonegotiation doesn't need to be kicked. 226 */ 227 break; 228 } 229 230 /* Update the media status. */ 231 qsphy_status(sc); 232 233 /* Callback if something changed. */ 234 mii_phy_update(sc, cmd); 235 return (0); 236 } 237 238 static void 239 qsphy_status(struct mii_softc *sc) 240 { 241 struct mii_data *mii = sc->mii_pdata; 242 int bmsr, bmcr, pctl; 243 244 mii->mii_media_status = IFM_AVALID; 245 mii->mii_media_active = IFM_ETHER; 246 247 bmsr = PHY_READ(sc, MII_BMSR) | 248 PHY_READ(sc, MII_BMSR); 249 if (bmsr & BMSR_LINK) 250 mii->mii_media_status |= IFM_ACTIVE; 251 252 bmcr = PHY_READ(sc, MII_BMCR); 253 if (bmcr & BMCR_ISO) { 254 mii->mii_media_active |= IFM_NONE; 255 mii->mii_media_status = 0; 256 return; 257 } 258 259 if (bmcr & BMCR_LOOP) 260 mii->mii_media_active |= IFM_LOOP; 261 262 if (bmcr & BMCR_AUTOEN) { 263 if ((bmsr & BMSR_ACOMP) == 0) { 264 /* Erg, still trying, I guess... */ 265 mii->mii_media_active |= IFM_NONE; 266 return; 267 } 268 269 pctl = PHY_READ(sc, MII_QSPHY_PCTL); 270 switch (pctl & PCTL_OPMASK) { 271 case PCTL_10_T: 272 mii->mii_media_active |= IFM_10_T; 273 break; 274 case PCTL_10_T_FDX: 275 mii->mii_media_active |= IFM_10_T|IFM_FDX; 276 break; 277 case PCTL_100_TX: 278 mii->mii_media_active |= IFM_100_TX; 279 break; 280 case PCTL_100_TX_FDX: 281 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 282 break; 283 case PCTL_100_T4: 284 mii->mii_media_active |= IFM_100_T4; 285 break; 286 case PCTL_AN: 287 mii->mii_media_active |= IFM_NONE; 288 break; 289 default: 290 /* Erg... this shouldn't happen. */ 291 mii->mii_media_active |= IFM_NONE; 292 break; 293 } 294 } else { 295 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media; 296 } 297 } 298 299 static void 300 qsphy_reset(struct mii_softc *sc) 301 { 302 mii_phy_reset(sc); 303 PHY_WRITE(sc, MII_QSPHY_IMASK, 0); 304 } 305