1/* $OpenBSD: txphy.c,v 1.14 2024/05/27 03:56:59 jsg 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_var.h> 42#include <net/if_media.h> 43 44#include <dev/mii/mii.h> 45#include <dev/mii/miivar.h> 46#include <dev/mii/miidevs.h> 47 48int txphymatch(struct device *, void *, void *); 49void txphyattach(struct device *, struct device *, void *); 50 51const struct cfattach txphy_ca = { 52 sizeof(struct mii_softc), txphymatch, txphyattach, mii_phy_detach 53}; 54 55struct cfdriver txphy_cd = { 56 NULL, "txphy", DV_DULL 57}; 58 59int txphy_service(struct mii_softc *, struct mii_data *, int); 60 61const struct mii_phy_funcs txphy_funcs = { 62 txphy_service, ukphy_status, mii_phy_reset, 63}; 64 65static const struct mii_phydesc txphys[] = { 66 { MII_OUI_xxTI, MII_MODEL_xxTI_TNETE2101, 67 MII_STR_xxTI_TNETE2101 }, 68 69 { 0, 0, 70 NULL }, 71}; 72 73int 74txphymatch(struct device *parent, void *match, void *aux) 75{ 76 struct mii_attach_args *ma = aux; 77 78 if (mii_phy_match(ma, txphys) != NULL) 79 return (10); 80 81 return (0); 82} 83 84void 85txphyattach(struct device *parent, struct device *self, void *aux) 86{ 87 struct mii_softc *sc = (struct mii_softc *)self; 88 struct mii_attach_args *ma = aux; 89 struct mii_data *mii = ma->mii_data; 90 const struct mii_phydesc *mpd; 91 92 mpd = mii_phy_match(ma, txphys); 93 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 94 95 sc->mii_inst = mii->mii_instance; 96 sc->mii_phy = ma->mii_phyno; 97 sc->mii_funcs = &txphy_funcs; 98 sc->mii_pdata = mii; 99 sc->mii_flags = ma->mii_flags; 100 101 PHY_RESET(sc); 102 103 sc->mii_capabilities = 104 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 105 if (sc->mii_capabilities & BMSR_MEDIAMASK) 106 mii_phy_add_media(sc); 107} 108 109int 110txphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 111{ 112 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 113 114 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) 115 return (ENXIO); 116 117 /* 118 * Can't isolate the TNETE2101 phy, so it has to be the only one. 119 */ 120 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 121 panic("txphy_service: attempt to isolate phy"); 122 123 switch (cmd) { 124 case MII_POLLSTAT: 125 break; 126 127 case MII_MEDIACHG: 128 /* 129 * If the interface is not up, don't do anything. 130 */ 131 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 132 break; 133 134 mii_phy_setmedia(sc); 135 break; 136 137 case MII_TICK: 138 if (mii_phy_tick(sc) == EJUSTRETURN) 139 return (0); 140 break; 141 142 case MII_DOWN: 143 mii_phy_down(sc); 144 return (0); 145 } 146 147 /* Update the media status. */ 148 mii_phy_status(sc); 149 150 /* Callback if something changed. */ 151 mii_phy_update(sc, cmd); 152 return (0); 153} 154