Annotation of sys/dev/mii/inphy.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: inphy.c,v 1.14 2006/12/27 19:11:08 kettenis Exp $ */
! 2: /* $NetBSD: inphy.c,v 1.18 2000/02/02 23:34:56 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:
! 41: /*
! 42: * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
! 43: *
! 44: * Redistribution and use in source and binary forms, with or without
! 45: * modification, are permitted provided that the following conditions
! 46: * are met:
! 47: * 1. Redistributions of source code must retain the above copyright
! 48: * notice, this list of conditions and the following disclaimer.
! 49: * 2. Redistributions in binary form must reproduce the above copyright
! 50: * notice, this list of conditions and the following disclaimer in the
! 51: * documentation and/or other materials provided with the distribution.
! 52: * 3. All advertising materials mentioning features or use of this software
! 53: * must display the following acknowledgement:
! 54: * This product includes software developed by Manuel Bouyer.
! 55: * 4. The name of the author may not be used to endorse or promote products
! 56: * derived from this software without specific prior written permission.
! 57: *
! 58: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 59: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 60: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 61: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 62: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 63: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 64: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 65: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 66: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 67: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 68: */
! 69:
! 70: /*
! 71: * driver for Intel's i82555 ethernet 10/100 PHY
! 72: * Data Sheet available from www.intel.com
! 73: */
! 74:
! 75: #include <sys/param.h>
! 76: #include <sys/systm.h>
! 77: #include <sys/kernel.h>
! 78: #include <sys/device.h>
! 79: #include <sys/socket.h>
! 80: #include <sys/errno.h>
! 81:
! 82: #include <net/if.h>
! 83: #include <net/if_media.h>
! 84:
! 85: #include <dev/mii/mii.h>
! 86: #include <dev/mii/miivar.h>
! 87: #include <dev/mii/miidevs.h>
! 88:
! 89: #include <dev/mii/inphyreg.h>
! 90:
! 91: int inphymatch(struct device *, void *, void *);
! 92: void inphyattach(struct device *, struct device *, void *);
! 93:
! 94: struct cfattach inphy_ca = {
! 95: sizeof(struct mii_softc), inphymatch, inphyattach, mii_phy_detach,
! 96: mii_phy_activate
! 97: };
! 98:
! 99: struct cfdriver inphy_cd = {
! 100: NULL, "inphy", DV_DULL
! 101: };
! 102:
! 103: int inphy_service(struct mii_softc *, struct mii_data *, int);
! 104: void inphy_status(struct mii_softc *);
! 105:
! 106: const struct mii_phy_funcs inphy_funcs = {
! 107: inphy_service, inphy_status, mii_phy_reset,
! 108: };
! 109:
! 110: static const struct mii_phydesc inphys[] = {
! 111: { MII_OUI_INTEL, MII_MODEL_INTEL_I82555,
! 112: MII_STR_INTEL_I82555 },
! 113: { MII_OUI_INTEL, MII_MODEL_INTEL_I82562EM,
! 114: MII_STR_INTEL_I82562EM },
! 115: { MII_OUI_INTEL, MII_MODEL_INTEL_I82562ET,
! 116: MII_STR_INTEL_I82562ET },
! 117:
! 118: { 0, 0,
! 119: NULL },
! 120: };
! 121:
! 122: int
! 123: inphymatch(parent, match, aux)
! 124: struct device *parent;
! 125: void *match;
! 126: void *aux;
! 127: {
! 128: struct mii_attach_args *ma = aux;
! 129:
! 130: if (mii_phy_match(ma, inphys) != NULL)
! 131: return (10);
! 132:
! 133: return (0);
! 134: }
! 135:
! 136: void
! 137: inphyattach(parent, self, aux)
! 138: struct device *parent, *self;
! 139: void *aux;
! 140: {
! 141: struct mii_softc *sc = (struct mii_softc *)self;
! 142: struct mii_attach_args *ma = aux;
! 143: struct mii_data *mii = ma->mii_data;
! 144: const struct mii_phydesc *mpd;
! 145:
! 146: mpd = mii_phy_match(ma, inphys);
! 147: printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
! 148:
! 149: sc->mii_inst = mii->mii_instance;
! 150: sc->mii_phy = ma->mii_phyno;
! 151: sc->mii_funcs = &inphy_funcs;
! 152: sc->mii_pdata = mii;
! 153: sc->mii_flags = ma->mii_flags;
! 154:
! 155: PHY_RESET(sc);
! 156:
! 157: sc->mii_capabilities =
! 158: PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
! 159: if (sc->mii_capabilities & BMSR_MEDIAMASK)
! 160: mii_phy_add_media(sc);
! 161: }
! 162:
! 163: int
! 164: inphy_service(sc, mii, cmd)
! 165: struct mii_softc *sc;
! 166: struct mii_data *mii;
! 167: int cmd;
! 168: {
! 169: struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
! 170: int reg;
! 171:
! 172: if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
! 173: return (ENXIO);
! 174:
! 175: switch (cmd) {
! 176: case MII_POLLSTAT:
! 177: /*
! 178: * If we're not polling our PHY instance, just return.
! 179: */
! 180: if (IFM_INST(ife->ifm_media) != sc->mii_inst)
! 181: return (0);
! 182: break;
! 183:
! 184: case MII_MEDIACHG:
! 185: /*
! 186: * If the media indicates a different PHY instance,
! 187: * isolate ourselves.
! 188: */
! 189: if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
! 190: reg = PHY_READ(sc, MII_BMCR);
! 191: PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
! 192: return (0);
! 193: }
! 194:
! 195: /*
! 196: * If the interface is not up, don't do anything.
! 197: */
! 198: if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
! 199: break;
! 200:
! 201: mii_phy_setmedia(sc);
! 202: break;
! 203:
! 204: case MII_TICK:
! 205: /*
! 206: * If we're not currently selected, just return.
! 207: */
! 208: if (IFM_INST(ife->ifm_media) != sc->mii_inst)
! 209: return (0);
! 210:
! 211: if (mii_phy_tick(sc) == EJUSTRETURN)
! 212: return (0);
! 213: break;
! 214:
! 215: case MII_DOWN:
! 216: mii_phy_down(sc);
! 217: return (0);
! 218: }
! 219:
! 220: /* Update the media status. */
! 221: mii_phy_status(sc);
! 222:
! 223: /* Callback if something changed. */
! 224: mii_phy_update(sc, cmd);
! 225: return (0);
! 226: }
! 227:
! 228: void
! 229: inphy_status(sc)
! 230: struct mii_softc *sc;
! 231: {
! 232: struct mii_data *mii = sc->mii_pdata;
! 233: struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
! 234: int bmsr, bmcr, scr;
! 235:
! 236: mii->mii_media_status = IFM_AVALID;
! 237: mii->mii_media_active = IFM_ETHER;
! 238:
! 239: bmsr = PHY_READ(sc, MII_BMSR) |
! 240: PHY_READ(sc, MII_BMSR);
! 241: if (bmsr & BMSR_LINK)
! 242: mii->mii_media_status |= IFM_ACTIVE;
! 243:
! 244: bmcr = PHY_READ(sc, MII_BMCR);
! 245: if (bmcr & BMCR_ISO) {
! 246: mii->mii_media_active |= IFM_NONE;
! 247: mii->mii_media_status = 0;
! 248: return;
! 249: }
! 250:
! 251: if (bmcr & BMCR_LOOP)
! 252: mii->mii_media_active |= IFM_LOOP;
! 253:
! 254: if (bmcr & BMCR_AUTOEN) {
! 255: if ((bmsr & BMSR_ACOMP) == 0) {
! 256: /* Erg, still trying, I guess... */
! 257: mii->mii_media_active |= IFM_NONE;
! 258: return;
! 259: }
! 260:
! 261: scr = PHY_READ(sc, MII_INPHY_SCR);
! 262: if ((bmsr & BMSR_100T4) && (scr & SCR_T4))
! 263: mii->mii_media_active |= IFM_100_T4;
! 264: else if (scr & SCR_S100)
! 265: mii->mii_media_active |= IFM_100_TX;
! 266: else
! 267: mii->mii_media_active |= IFM_10_T;
! 268:
! 269: if (scr & SCR_FDX)
! 270: mii->mii_media_active |= IFM_FDX;
! 271: else
! 272: mii->mii_media_active |= IFM_HDX;
! 273: } else
! 274: mii->mii_media_active = ife->ifm_media;
! 275: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to inphy.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / dev / mii