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 DEVMETHOD_END 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(yyAMD, 79c901home), 89 MII_PHY_END 90 }; 91 92 static const struct mii_phy_funcs pnaphy_funcs = { 93 pnaphy_service, 94 ukphy_status, 95 mii_phy_reset 96 }; 97 98 static int 99 pnaphy_probe(device_t dev) 100 { 101 102 return (mii_phy_dev_probe(dev, pnaphys, BUS_PROBE_DEFAULT)); 103 } 104 105 static int 106 pnaphy_attach(device_t dev) 107 { 108 109 mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_IS_HPNA | 110 MIIF_NOMANPAUSE, &pnaphy_funcs, 1); 111 return (0); 112 } 113 114 static int 115 pnaphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 116 { 117 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 118 119 switch (cmd) { 120 case MII_POLLSTAT: 121 break; 122 123 case MII_MEDIACHG: 124 switch (IFM_SUBTYPE(ife->ifm_media)) { 125 case IFM_HPNA_1: 126 mii_phy_setmedia(sc); 127 break; 128 default: 129 return (EINVAL); 130 } 131 break; 132 133 case MII_TICK: 134 if (mii_phy_tick(sc) == EJUSTRETURN) 135 return (0); 136 break; 137 } 138 139 /* Update the media status. */ 140 PHY_STATUS(sc); 141 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_10_T) 142 mii->mii_media_active = IFM_ETHER | IFM_HPNA_1; 143 144 /* Callback if something changed. */ 145 mii_phy_update(sc, cmd); 146 return (0); 147 } 148