dl10019.c revision 1.16
1 /* $NetBSD: dl10019.c,v 1.16 2021/06/30 20:00:18 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 1.16 2021/06/30 20:00:18 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 mii->mii_ifp = ifp; 138 mii->mii_readreg = dl10019_mii_readreg; 139 mii->mii_writereg = dl10019_mii_writereg; 140 mii->mii_statchg = dl10019_mii_statchg; 141 ifmedia_init(&mii->mii_media, IFM_IMASK, dp8390_mediachange, 142 dp8390_mediastatus); 143 144 dl10019_mii_reset(sc); 145 146 mii_attach(sc->sc_dev, mii, 0xffffffff, MII_PHY_ANY, 147 MII_OFFSET_ANY, 0); 148 149 if (LIST_FIRST(&mii->mii_phys) == NULL) { 150 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 151 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 152 } else 153 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 154 } 155 156 void 157 dl10019_media_fini(struct dp8390_softc *sc) 158 { 159 160 callout_stop(&sc->sc_tick_ch); 161 mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); 162 /* dp8390_detach() will call ifmedia_fini(). */ 163 } 164 165 int 166 dl10019_mediachange(struct dp8390_softc *sc) 167 { 168 int rc; 169 170 if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO) 171 return 0; 172 return rc; 173 } 174 175 void 176 dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr) 177 { 178 179 mii_pollstat(&sc->sc_mii); 180 ifmr->ifm_status = sc->sc_mii.mii_media_status; 181 ifmr->ifm_active = sc->sc_mii.mii_media_active; 182 } 183 184 void 185 dl10019_init_card(struct dp8390_softc *sc) 186 { 187 188 dl10019_mii_reset(sc); 189 mii_mediachg(&sc->sc_mii); 190 callout_schedule(&sc->sc_tick_ch, hz); 191 } 192 193 void 194 dl10019_stop_card(struct dp8390_softc *sc) 195 { 196 197 callout_stop(&sc->sc_tick_ch); 198 mii_down(&sc->sc_mii); 199 } 200 201 u_int32_t 202 dl10019_mii_bitbang_read(device_t self) 203 { 204 struct dp8390_softc *sc = device_private(self); 205 206 /* We're already in Page 0. */ 207 return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) & 208 ~DL0_GPIO_PRESERVE); 209 } 210 211 void 212 dl10019_mii_bitbang_write(device_t self, u_int32_t val) 213 { 214 struct dp8390_softc *sc = device_private(self); 215 u_int8_t gpio; 216 217 /* We're already in Page 0. */ 218 gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO); 219 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 220 (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE)); 221 } 222 223 int 224 dl10019_mii_readreg(device_t self, int phy, int reg, uint16_t *val) 225 { 226 struct ne2000_softc *nsc = device_private(self); 227 const struct mii_bitbang_ops *ops; 228 229 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? 230 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; 231 232 return mii_bitbang_readreg(self, ops, phy, reg, val); 233 } 234 235 int 236 dl10019_mii_writereg(device_t self, int phy, int reg, uint16_t val) 237 { 238 struct ne2000_softc *nsc = device_private(self); 239 const struct mii_bitbang_ops *ops; 240 241 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? 242 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; 243 244 return mii_bitbang_writereg(self, ops, phy, reg, val); 245 } 246 247 void 248 dl10019_mii_statchg(struct ifnet *ifp) 249 { 250 struct ne2000_softc *nsc = ifp->if_softc; 251 struct dp8390_softc *sc = &nsc->sc_dp8390; 252 253 /* 254 * Disable collision detection on the DL10022 if 255 * we are on a full-duplex link. 256 */ 257 if (nsc->sc_type == NE2000_TYPE_DL10022) { 258 u_int8_t diag; 259 260 if (sc->sc_mii.mii_media_active & IFM_FDX) 261 diag = DL0_DIAG_NOCOLLDETECT; 262 else 263 diag = 0; 264 bus_space_write_1(sc->sc_regt, sc->sc_regh, 265 NEDL_DL0_DIAG, diag); 266 } 267 } 268
Indexes created Mon Oct 27 04:09:48 GMT 2025