acphy.c revision 1.22
1 /* $NetBSD: acphy.c,v 1.22 2008/05/04 17:06:09 xtraeme Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Driver for the Altima AC101 PHY. 40 */ 41 42 #include <sys/cdefs.h> 43 __KERNEL_RCSID(0, "$NetBSD: acphy.c,v 1.22 2008/05/04 17:06:09 xtraeme Exp $"); 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/device.h> 49 #include <sys/socket.h> 50 #include <sys/errno.h> 51 52 #include <net/if.h> 53 #include <net/if_media.h> 54 55 #include <dev/mii/mii.h> 56 #include <dev/mii/miivar.h> 57 #include <dev/mii/miidevs.h> 58 59 #include <dev/mii/acphyreg.h> 60 61 static int acphymatch(device_t, cfdata_t, void *); 62 static void acphyattach(device_t, device_t, void *); 63 64 CFATTACH_DECL_NEW(acphy, sizeof(struct mii_softc), 65 acphymatch, acphyattach, mii_phy_detach, mii_phy_activate); 66 67 static int acphy_service(struct mii_softc *, struct mii_data *, int); 68 static void acphy_status(struct mii_softc *); 69 70 static const struct mii_phy_funcs acphy_funcs = { 71 acphy_service, acphy_status, mii_phy_reset, 72 }; 73 74 static const struct mii_phydesc acphys[] = { 75 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_AC101, 76 MII_STR_ALTIMA_AC101 }, 77 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_AC101L, 78 MII_STR_ALTIMA_AC101L }, 79 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_Am79C874, 80 MII_STR_ALTIMA_Am79C874 }, 81 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_Am79C875, 82 MII_STR_ALTIMA_Am79C875 }, 83 84 /* XXX This is reported to work, but it's not from any data sheet. */ 85 { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_ACXXX, 86 MII_STR_ALTIMA_ACXXX }, 87 88 { 0, 0, 89 NULL }, 90 }; 91 92 static int 93 acphymatch(device_t parent, cfdata_t match, void *aux) 94 { 95 struct mii_attach_args *ma = aux; 96 97 if (mii_phy_match(ma, acphys) != NULL) 98 return (10); 99 100 return (0); 101 } 102 103 static void 104 acphyattach(device_t parent, device_t self, void *aux) 105 { 106 struct mii_softc *sc = device_private(self); 107 struct mii_attach_args *ma = aux; 108 struct mii_data *mii = ma->mii_data; 109 const struct mii_phydesc *mpd; 110 111 mpd = mii_phy_match(ma, acphys); 112 aprint_naive(": Media interface\n"); 113 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 114 115 sc->mii_dev = self; 116 sc->mii_inst = mii->mii_instance; 117 sc->mii_phy = ma->mii_phyno; 118 sc->mii_funcs = &acphy_funcs; 119 sc->mii_pdata = mii; 120 sc->mii_flags = ma->mii_flags; 121 sc->mii_anegticks = MII_ANEGTICKS; 122 123 PHY_RESET(sc); 124 125 /* 126 * XXX Check MCR_FX_SEL to set MIIF_HAVE_FIBER? 127 */ 128 129 sc->mii_capabilities = 130 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 131 aprint_normal_dev(sc->mii_dev, ""); 132 133 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 134 if (sc->mii_flags & MIIF_HAVEFIBER) { 135 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), 136 MII_MEDIA_100_TX); 137 aprint_normal("100baseFX, "); 138 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), 139 MII_MEDIA_100_TX); 140 aprint_normal("100baseFX-FDX, "); 141 } 142 #undef ADD 143 144 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) 145 aprint_error("no media present"); 146 else 147 mii_phy_add_media(sc); 148 aprint_normal("\n"); 149 150 if (!pmf_device_register(self, NULL, mii_phy_resume)) 151 aprint_error_dev(self, "couldn't establish power handler\n"); 152 } 153 154 static int 155 acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 156 { 157 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 158 int reg; 159 160 switch (cmd) { 161 case MII_POLLSTAT: 162 /* 163 * If we're not polling our PHY instance, just return. 164 */ 165 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 166 return (0); 167 break; 168 169 case MII_MEDIACHG: 170 /* 171 * If the media indicates a different PHY instance, 172 * isolate ourselves. 173 */ 174 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 175 reg = PHY_READ(sc, MII_BMCR); 176 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 177 return (0); 178 } 179 180 /* 181 * If the interface is not up, don't do anything. 182 */ 183 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 184 break; 185 186 mii_phy_setmedia(sc); 187 break; 188 189 case MII_TICK: 190 /* 191 * If we're not currently selected, just return. 192 */ 193 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 194 return (0); 195 196 if (mii_phy_tick(sc) == EJUSTRETURN) 197 return (0); 198 break; 199 200 case MII_DOWN: 201 mii_phy_down(sc); 202 return (0); 203 } 204 205 /* Update the media status. */ 206 mii_phy_status(sc); 207 208 /* Callback if something changed. */ 209 mii_phy_update(sc, cmd); 210 return (0); 211 } 212 213 static void 214 acphy_status(struct mii_softc *sc) 215 { 216 struct mii_data *mii = sc->mii_pdata; 217 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 218 int bmsr, bmcr, dr; 219 220 mii->mii_media_status = IFM_AVALID; 221 mii->mii_media_active = IFM_ETHER; 222 223 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 224 dr = PHY_READ(sc, MII_ACPHY_DR); 225 226 if (bmsr & BMSR_LINK) 227 mii->mii_media_status |= IFM_ACTIVE; 228 229 bmcr = PHY_READ(sc, MII_BMCR); 230 if (bmcr & BMCR_ISO) { 231 mii->mii_media_active |= IFM_NONE; 232 mii->mii_media_status = 0; 233 return; 234 } 235 236 if (bmcr & BMCR_LOOP) 237 mii->mii_media_active |= IFM_LOOP; 238 239 if (bmcr & BMCR_AUTOEN) { 240 /* 241 * The media status bits are only valid if autonegotiation 242 * has completed (or it's disabled). 243 */ 244 if ((bmsr & BMSR_ACOMP) == 0) { 245 /* Erg, still trying, I guess... */ 246 mii->mii_media_active |= IFM_NONE; 247 return; 248 } 249 250 if (dr & DR_SPEED) 251 mii->mii_media_active |= IFM_100_TX; 252 else 253 mii->mii_media_active |= IFM_10_T; 254 if (dr & DR_DPLX) 255 mii->mii_media_active |= IFM_FDX; 256 } else 257 mii->mii_media_active = ife->ifm_media; 258 } 259
Indexes created Thu Sep 25 02:09:54 GMT 2025