1 /* $OpenBSD: txphy.c,v 1.11 2013/12/28 03:30:41 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Jason L. Wright (jason@thought.net) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * Driver for the Texas Instruments TNETE2101 phy. 31 */ 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/device.h> 37 #include <sys/socket.h> 38 #include <sys/errno.h> 39 40 #include <net/if.h> 41 #include <net/if_media.h> 42 43 #include <dev/mii/mii.h> 44 #include <dev/mii/miivar.h> 45 #include <dev/mii/miidevs.h> 46 47 int txphymatch(struct device *, void *, void *); 48 void txphyattach(struct device *, struct device *, void *); 49 50 struct cfattach txphy_ca = { 51 sizeof(struct mii_softc), txphymatch, txphyattach, mii_phy_detach 52 }; 53 54 struct cfdriver txphy_cd = { 55 NULL, "txphy", DV_DULL 56 }; 57 58 int txphy_service(struct mii_softc *, struct mii_data *, int); 59 60 const struct mii_phy_funcs txphy_funcs = { 61 txphy_service, ukphy_status, mii_phy_reset, 62 }; 63 64 static const struct mii_phydesc txphys[] = { 65 { MII_OUI_xxTI, MII_MODEL_xxTI_TNETE2101, 66 MII_STR_xxTI_TNETE2101 }, 67 68 { 0, 0, 69 NULL }, 70 }; 71 72 int 73 txphymatch(struct device *parent, void *match, void *aux) 74 { 75 struct mii_attach_args *ma = aux; 76 77 if (mii_phy_match(ma, txphys) != NULL) 78 return (10); 79 80 return (0); 81 } 82 83 void 84 txphyattach(struct device *parent, struct device *self, void *aux) 85 { 86 struct mii_softc *sc = (struct mii_softc *)self; 87 struct mii_attach_args *ma = aux; 88 struct mii_data *mii = ma->mii_data; 89 const struct mii_phydesc *mpd; 90 91 mpd = mii_phy_match(ma, txphys); 92 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 93 94 sc->mii_inst = mii->mii_instance; 95 sc->mii_phy = ma->mii_phyno; 96 sc->mii_funcs = &txphy_funcs; 97 sc->mii_pdata = mii; 98 sc->mii_flags = ma->mii_flags; 99 100 PHY_RESET(sc); 101 102 sc->mii_capabilities = 103 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 104 if (sc->mii_capabilities & BMSR_MEDIAMASK) 105 mii_phy_add_media(sc); 106 } 107 108 int 109 txphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 110 { 111 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 112 113 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 114 return (ENXIO); 115 116 /* 117 * Can't isolate the RTL8139 phy, so it has to be the only one. 118 */ 119 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 120 panic("txphy_service: attempt to isolate phy"); 121 122 switch (cmd) { 123 case MII_POLLSTAT: 124 break; 125 126 case MII_MEDIACHG: 127 /* 128 * If the interface is not up, don't do anything. 129 */ 130 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 131 break; 132 133 mii_phy_setmedia(sc); 134 break; 135 136 case MII_TICK: 137 if (mii_phy_tick(sc) == EJUSTRETURN) 138 return (0); 139 break; 140 141 case MII_DOWN: 142 mii_phy_down(sc); 143 return (0); 144 } 145 146 /* Update the media status. */ 147 mii_phy_status(sc); 148 149 /* Callback if something changed. */ 150 mii_phy_update(sc, cmd); 151 return (0); 152 } 153