1 /* $NetBSD: dl10019.c,v 1.17 2021/07/01 20:39:15 thorpej 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 1.17 2021/07/01 20:39:15 thorpej 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, uint16_t *); 63 int dl10019_mii_writereg(device_t, int, int, uint16_t); 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 static void 117 dl10019_tick(void *arg) 118 { 119 struct dp8390_softc *sc = arg; 120 int s; 121 122 s = splnet(); 123 mii_tick(&sc->sc_mii); 124 splx(s); 125 126 callout_schedule(&sc->sc_tick_ch, hz); 127 } 128 129 void 130 dl10019_media_init(struct dp8390_softc *sc) 131 { 132 struct ifnet *ifp = &sc->sc_ec.ec_if; 133 struct mii_data *mii = &sc->sc_mii; 134 135 callout_setfunc(&sc->sc_tick_ch, dl10019_tick, sc); 136 137 sc->sc_ec.ec_mii = mii; 138 139 mii->mii_ifp = ifp; 140 mii->mii_readreg = dl10019_mii_readreg; 141 mii->mii_writereg = dl10019_mii_writereg; 142 mii->mii_statchg = dl10019_mii_statchg; 143 ifmedia_init(&mii->mii_media, IFM_IMASK, dp8390_mediachange, 144 dp8390_mediastatus); 145 146 dl10019_mii_reset(sc); 147 148 mii_attach(sc->sc_dev, mii, 0xffffffff, MII_PHY_ANY, 149 MII_OFFSET_ANY, 0); 150 151 if (LIST_FIRST(&mii->mii_phys) == NULL) { 152 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 153 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 154 } else 155 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 156 } 157 158 void 159 dl10019_media_fini(struct dp8390_softc *sc) 160 { 161 162 callout_stop(&sc->sc_tick_ch); 163 mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); 164 /* dp8390_detach() will call ifmedia_fini(). */ 165 } 166 167 int 168 dl10019_mediachange(struct dp8390_softc *sc) 169 { 170 int rc; 171 172 if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO) 173 return 0; 174 return rc; 175 } 176 177 void 178 dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr) 179 { 180 181 mii_pollstat(&sc->sc_mii); 182 ifmr->ifm_status = sc->sc_mii.mii_media_status; 183 ifmr->ifm_active = sc->sc_mii.mii_media_active; 184 } 185 186 void 187 dl10019_init_card(struct dp8390_softc *sc) 188 { 189 190 dl10019_mii_reset(sc); 191 mii_mediachg(&sc->sc_mii); 192 callout_schedule(&sc->sc_tick_ch, hz); 193 } 194 195 void 196 dl10019_stop_card(struct dp8390_softc *sc) 197 { 198 199 callout_stop(&sc->sc_tick_ch); 200 mii_down(&sc->sc_mii); 201 } 202 203 u_int32_t 204 dl10019_mii_bitbang_read(device_t self) 205 { 206 struct dp8390_softc *sc = device_private(self); 207 208 /* We're already in Page 0. */ 209 return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) & 210 ~DL0_GPIO_PRESERVE); 211 } 212 213 void 214 dl10019_mii_bitbang_write(device_t self, u_int32_t val) 215 { 216 struct dp8390_softc *sc = device_private(self); 217 u_int8_t gpio; 218 219 /* We're already in Page 0. */ 220 gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO); 221 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 222 (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE)); 223 } 224 225 int 226 dl10019_mii_readreg(device_t self, int phy, int reg, uint16_t *val) 227 { 228 struct ne2000_softc *nsc = device_private(self); 229 const struct mii_bitbang_ops *ops; 230 231 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? 232 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; 233 234 return mii_bitbang_readreg(self, ops, phy, reg, val); 235 } 236 237 int 238 dl10019_mii_writereg(device_t self, int phy, int reg, uint16_t val) 239 { 240 struct ne2000_softc *nsc = device_private(self); 241 const struct mii_bitbang_ops *ops; 242 243 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? 244 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; 245 246 return mii_bitbang_writereg(self, ops, phy, reg, val); 247 } 248 249 void 250 dl10019_mii_statchg(struct ifnet *ifp) 251 { 252 struct ne2000_softc *nsc = ifp->if_softc; 253 struct dp8390_softc *sc = &nsc->sc_dp8390; 254 255 /* 256 * Disable collision detection on the DL10022 if 257 * we are on a full-duplex link. 258 */ 259 if (nsc->sc_type == NE2000_TYPE_DL10022) { 260 u_int8_t diag; 261 262 if (sc->sc_mii.mii_media_active & IFM_FDX) 263 diag = DL0_DIAG_NOCOLLDETECT; 264 else 265 diag = 0; 266 bus_space_write_1(sc->sc_regt, sc->sc_regh, 267 NEDL_DL0_DIAG, diag); 268 } 269 } 270
Indexes created Sat Sep 27 22:09:54 GMT 2025