1 /* $OpenBSD: dl10019.c,v 1.9 2015/11/24 17:11:39 mpi Exp $ */ 2 /* $NetBSD$ */ 3 4 /*- 5 * Copyright (c) 2001 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. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/device.h> 36 #include <sys/mbuf.h> 37 #include <sys/socket.h> 38 #include <sys/syslog.h> 39 40 #include <net/if.h> 41 #include <net/if_media.h> 42 43 #include <netinet/in.h> 44 #include <netinet/if_ether.h> 45 46 #include <machine/bus.h> 47 48 #include <dev/mii/miivar.h> 49 #include <dev/mii/mii.h> 50 #include <dev/mii/mii_bitbang.h> 51 52 #include <dev/ic/dp8390reg.h> 53 #include <dev/ic/dp8390var.h> 54 55 #include <dev/ic/ne2000reg.h> 56 #include <dev/ic/ne2000var.h> 57 58 #include <dev/ic/dl10019reg.h> 59 60 int dl10019_mii_readreg(struct device *, int, int); 61 void dl10019_mii_writereg(struct device *, int, int, int); 62 void dl10019_mii_statchg(struct device *); 63 64 void dl10019_mii_reset(struct dp8390_softc *); 65 66 /* 67 * MII bit-bang glue. 68 */ 69 u_int32_t dl10019_mii_bitbang_read(struct device *); 70 void dl10019_mii_bitbang_write(struct device *, u_int32_t); 71 72 const struct mii_bitbang_ops dl10019_mii_bitbang_ops = { 73 dl10019_mii_bitbang_read, 74 dl10019_mii_bitbang_write, 75 { 76 DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */ 77 DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */ 78 DL0_GPIO_MII_CLK, /* MII_BIT_MDC */ 79 DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */ 80 0, /* MII_BIT_DIR_PHY_HOST */ 81 } 82 }; 83 84 const struct mii_bitbang_ops dl10022_mii_bitbang_ops = { 85 dl10019_mii_bitbang_read, 86 dl10019_mii_bitbang_write, 87 { 88 DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */ 89 DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */ 90 DL0_GPIO_MII_CLK, /* MII_BIT_MDC */ 91 DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */ 92 0, /* MII_BIT_DIR_PHY_HOST */ 93 } 94 }; 95 96 void 97 dl10019_mii_reset(struct dp8390_softc *sc) 98 { 99 struct ne2000_softc *nsc = (void *) sc; 100 int i; 101 102 if (nsc->sc_type != NE2000_TYPE_DL10022) 103 return; 104 105 for (i = 0; i < 2; i++) { 106 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 107 0x08); 108 DELAY(1); 109 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 110 0x0c); 111 DELAY(1); 112 } 113 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00); 114 } 115 116 void 117 dl10019_media_init(struct dp8390_softc *sc) 118 { 119 struct ifnet *ifp = &sc->sc_arpcom.ac_if; 120 121 sc->sc_mii.mii_ifp = ifp; 122 sc->sc_mii.mii_readreg = dl10019_mii_readreg; 123 sc->sc_mii.mii_writereg = dl10019_mii_writereg; 124 sc->sc_mii.mii_statchg = dl10019_mii_statchg; 125 ifmedia_init(&sc->sc_mii.mii_media, 0, dp8390_mediachange, 126 dp8390_mediastatus); 127 128 dl10019_mii_reset(sc); 129 130 mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY, 131 MII_OFFSET_ANY, 0); 132 133 if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) { 134 ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL); 135 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE); 136 } else 137 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); 138 } 139 140 void 141 dl10019_media_fini(struct dp8390_softc *sc) 142 { 143 mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); 144 } 145 146 int 147 dl10019_mediachange(struct dp8390_softc *sc) 148 { 149 mii_mediachg(&sc->sc_mii); 150 return (0); 151 } 152 153 void 154 dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr) 155 { 156 mii_pollstat(&sc->sc_mii); 157 ifmr->ifm_status = sc->sc_mii.mii_media_status; 158 ifmr->ifm_active = sc->sc_mii.mii_media_active; 159 } 160 161 void 162 dl10019_init_card(struct dp8390_softc *sc) 163 { 164 dl10019_mii_reset(sc); 165 mii_mediachg(&sc->sc_mii); 166 } 167 168 void 169 dl10019_stop_card(struct dp8390_softc *sc) 170 { 171 mii_down(&sc->sc_mii); 172 } 173 174 u_int32_t 175 dl10019_mii_bitbang_read(struct device *self) 176 { 177 struct dp8390_softc *sc = (void *) self; 178 179 /* We're already in Page 0. */ 180 return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) & 181 ~DL0_GPIO_PRESERVE); 182 } 183 184 void 185 dl10019_mii_bitbang_write(struct device *self, u_int32_t val) 186 { 187 struct dp8390_softc *sc = (void *) self; 188 u_int8_t gpio; 189 190 /* We're already in Page 0. */ 191 gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO); 192 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 193 (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE)); 194 } 195 196 int 197 dl10019_mii_readreg(struct device *self, int phy, int reg) 198 { 199 struct ne2000_softc *nsc = (void *) self; 200 const struct mii_bitbang_ops *ops; 201 202 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? 203 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; 204 205 return (mii_bitbang_readreg(self, ops, phy, reg)); 206 } 207 208 void 209 dl10019_mii_writereg(struct device *self, int phy, int reg, int val) 210 { 211 struct ne2000_softc *nsc = (void *) self; 212 const struct mii_bitbang_ops *ops; 213 214 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? 215 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; 216 217 mii_bitbang_writereg(self, ops, phy, reg, val); 218 } 219 220 void 221 dl10019_mii_statchg(struct device *self) 222 { 223 struct dp8390_softc *sc = (void *) self; 224 struct ne2000_softc *nsc = (void *) self; 225 226 /* 227 * Disable collision detection on the DL10022 if 228 * we are on a full-duplex link. 229 */ 230 if (nsc->sc_type == NE2000_TYPE_DL10022) { 231 u_int8_t diag; 232 233 if (sc->sc_mii.mii_media_active & IFM_FDX) 234 diag = DL0_DIAG_NOCOLLDETECT; 235 else 236 diag = 0; 237 bus_space_write_1(sc->sc_regt, sc->sc_regh, 238 NEDL_DL0_DIAG, diag); 239 } 240 } 241