1 /*- 2 * Copyright (c) 2000 Berkeley Software Design, Inc. 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul@osd.bsdi.com>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Bill Paul. 17 * 4. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 /* 38 * driver for homePNA PHYs 39 * This is really just a stub that allows us to identify homePNA-based 40 * transceicers and display the link status. MII-based homePNA PHYs 41 * only support one media type and no autonegotiation. If we were 42 * really clever, we could tweak some of the vendor-specific registers 43 * to optimize the link. 44 */ 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/socket.h> 50 #include <sys/errno.h> 51 #include <sys/module.h> 52 #include <sys/bus.h> 53 54 #include <net/if.h> 55 #include <net/if_media.h> 56 57 #include <dev/mii/mii.h> 58 #include <dev/mii/miivar.h> 59 #include "miidevs.h" 60 61 #include "miibus_if.h" 62 63 static int pnaphy_probe(device_t); 64 static int pnaphy_attach(device_t); 65 66 static device_method_t pnaphy_methods[] = { 67 /* device interface */ 68 DEVMETHOD(device_probe, pnaphy_probe), 69 DEVMETHOD(device_attach, pnaphy_attach), 70 DEVMETHOD(device_detach, mii_phy_detach), 71 DEVMETHOD(device_shutdown, bus_generic_shutdown), 72 { 0, 0 } 73 }; 74 75 static devclass_t pnaphy_devclass; 76 77 static driver_t pnaphy_driver = { 78 "pnaphy", 79 pnaphy_methods, 80 sizeof(struct mii_softc) 81 }; 82 83 DRIVER_MODULE(pnaphy, miibus, pnaphy_driver, pnaphy_devclass, 0, 0); 84 85 static int pnaphy_service(struct mii_softc *, struct mii_data *,int); 86 87 static const struct mii_phydesc pnaphys[] = { 88 MII_PHY_DESC(AMD, 79c978), 89 MII_PHY_END 90 }; 91 92 static int 93 pnaphy_probe(device_t dev) 94 { 95 96 return (mii_phy_dev_probe(dev, pnaphys, BUS_PROBE_DEFAULT)); 97 } 98 99 static int 100 pnaphy_attach(device_t dev) 101 { 102 struct mii_softc *sc; 103 struct mii_attach_args *ma; 104 struct mii_data *mii; 105 106 sc = device_get_softc(dev); 107 ma = device_get_ivars(dev); 108 sc->mii_dev = device_get_parent(dev); 109 mii = ma->mii_data; 110 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 111 112 sc->mii_flags = miibus_get_flags(dev); 113 sc->mii_inst = mii->mii_instance++; 114 sc->mii_phy = ma->mii_phyno; 115 sc->mii_service = pnaphy_service; 116 sc->mii_pdata = mii; 117 118 sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP | MIIF_IS_HPNA; 119 120 mii_phy_reset(sc); 121 122 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 123 device_printf(dev, " "); 124 mii_phy_add_media(sc); 125 printf("\n"); 126 127 MIIBUS_MEDIAINIT(sc->mii_dev); 128 return (0); 129 } 130 131 static int 132 pnaphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 133 { 134 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 135 136 switch (cmd) { 137 case MII_POLLSTAT: 138 break; 139 140 case MII_MEDIACHG: 141 /* 142 * If the interface is not up, don't do anything. 143 */ 144 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 145 break; 146 147 switch (IFM_SUBTYPE(ife->ifm_media)) { 148 case IFM_HPNA_1: 149 mii_phy_setmedia(sc); 150 break; 151 default: 152 return (EINVAL); 153 } 154 break; 155 156 case MII_TICK: 157 if (mii_phy_tick(sc) == EJUSTRETURN) 158 return (0); 159 break; 160 } 161 162 /* Update the media status. */ 163 ukphy_status(sc); 164 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_10_T) 165 mii->mii_media_active = IFM_ETHER | IFM_HPNA_1; 166 167 /* Callback if something changed. */ 168 mii_phy_update(sc, cmd); 169 return (0); 170 } 171