| 1 | /* $NetBSD: dl10019.c,v 1.12 2012/07/22 14:32:56 matt Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2001 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Jason R. Thorpe. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <sys/cdefs.h> |
| 33 | __KERNEL_RCSID(0, "$NetBSD: dl10019.c,v 1.12 2012/07/22 14:32:56 matt Exp $" ); |
| 34 | |
| 35 | #include <sys/param.h> |
| 36 | #include <sys/systm.h> |
| 37 | #include <sys/mbuf.h> |
| 38 | #include <sys/syslog.h> |
| 39 | #include <sys/socket.h> |
| 40 | #include <sys/device.h> |
| 41 | |
| 42 | #include <net/if.h> |
| 43 | #include <net/if_ether.h> |
| 44 | #include <net/if_media.h> |
| 45 | |
| 46 | #include <sys/bus.h> |
| 47 | #include <sys/intr.h> |
| 48 | |
| 49 | #include <dev/mii/miivar.h> |
| 50 | #include <dev/mii/mii.h> |
| 51 | #include <dev/mii/mii_bitbang.h> |
| 52 | |
| 53 | #include <dev/ic/dp8390reg.h> |
| 54 | #include <dev/ic/dp8390var.h> |
| 55 | |
| 56 | #include <dev/ic/ne2000reg.h> |
| 57 | #include <dev/ic/ne2000var.h> |
| 58 | |
| 59 | #include <dev/ic/dl10019reg.h> |
| 60 | #include <dev/ic/dl10019var.h> |
| 61 | |
| 62 | int dl10019_mii_readreg(device_t, int, int); |
| 63 | void dl10019_mii_writereg(device_t, int, int, int); |
| 64 | void dl10019_mii_statchg(struct ifnet *); |
| 65 | |
| 66 | /* |
| 67 | * MII bit-bang glue. |
| 68 | */ |
| 69 | u_int32_t dl10019_mii_bitbang_read(device_t); |
| 70 | void dl10019_mii_bitbang_write(device_t, 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 | static 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_ec.ec_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, IFM_IMASK, 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 | |
| 144 | mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); |
| 145 | } |
| 146 | |
| 147 | int |
| 148 | dl10019_mediachange(struct dp8390_softc *sc) |
| 149 | { |
| 150 | int rc; |
| 151 | |
| 152 | if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO) |
| 153 | return 0; |
| 154 | return rc; |
| 155 | } |
| 156 | |
| 157 | void |
| 158 | dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr) |
| 159 | { |
| 160 | |
| 161 | mii_pollstat(&sc->sc_mii); |
| 162 | ifmr->ifm_status = sc->sc_mii.mii_media_status; |
| 163 | ifmr->ifm_active = sc->sc_mii.mii_media_active; |
| 164 | } |
| 165 | |
| 166 | void |
| 167 | dl10019_init_card(struct dp8390_softc *sc) |
| 168 | { |
| 169 | |
| 170 | dl10019_mii_reset(sc); |
| 171 | mii_mediachg(&sc->sc_mii); |
| 172 | } |
| 173 | |
| 174 | void |
| 175 | dl10019_stop_card(struct dp8390_softc *sc) |
| 176 | { |
| 177 | |
| 178 | mii_down(&sc->sc_mii); |
| 179 | } |
| 180 | |
| 181 | u_int32_t |
| 182 | dl10019_mii_bitbang_read(device_t self) |
| 183 | { |
| 184 | struct dp8390_softc *sc = device_private(self); |
| 185 | |
| 186 | /* We're already in Page 0. */ |
| 187 | return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) & |
| 188 | ~DL0_GPIO_PRESERVE); |
| 189 | } |
| 190 | |
| 191 | void |
| 192 | dl10019_mii_bitbang_write(device_t self, u_int32_t val) |
| 193 | { |
| 194 | struct dp8390_softc *sc = device_private(self); |
| 195 | u_int8_t gpio; |
| 196 | |
| 197 | /* We're already in Page 0. */ |
| 198 | gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO); |
| 199 | bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, |
| 200 | (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE)); |
| 201 | } |
| 202 | |
| 203 | int |
| 204 | dl10019_mii_readreg(device_t self, int phy, int reg) |
| 205 | { |
| 206 | struct ne2000_softc *nsc = device_private(self); |
| 207 | const struct mii_bitbang_ops *ops; |
| 208 | int val; |
| 209 | |
| 210 | ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? |
| 211 | &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; |
| 212 | |
| 213 | val = mii_bitbang_readreg(self, ops, phy, reg); |
| 214 | |
| 215 | return (val); |
| 216 | } |
| 217 | |
| 218 | void |
| 219 | dl10019_mii_writereg(device_t self, int phy, int reg, int val) |
| 220 | { |
| 221 | struct ne2000_softc *nsc = device_private(self); |
| 222 | const struct mii_bitbang_ops *ops; |
| 223 | |
| 224 | ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? |
| 225 | &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; |
| 226 | |
| 227 | mii_bitbang_writereg(self, ops, phy, reg, val); |
| 228 | } |
| 229 | |
| 230 | void |
| 231 | dl10019_mii_statchg(struct ifnet *ifp) |
| 232 | { |
| 233 | struct ne2000_softc *nsc = ifp->if_softc; |
| 234 | struct dp8390_softc *sc = &nsc->sc_dp8390; |
| 235 | |
| 236 | /* |
| 237 | * Disable collision detection on the DL10022 if |
| 238 | * we are on a full-duplex link. |
| 239 | */ |
| 240 | if (nsc->sc_type == NE2000_TYPE_DL10022) { |
| 241 | u_int8_t diag; |
| 242 | |
| 243 | if (sc->sc_mii.mii_media_active & IFM_FDX) |
| 244 | diag = DL0_DIAG_NOCOLLDETECT; |
| 245 | else |
| 246 | diag = 0; |
| 247 | bus_space_write_1(sc->sc_regt, sc->sc_regh, |
| 248 | NEDL_DL0_DIAG, diag); |
| 249 | } |
| 250 | } |
| 251 | |