Annotation of sys/dev/ic/dl10019.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: dl10019.c,v 1.3 2003/06/25 17:35:36 miod 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: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: #include <sys/param.h>
! 41: #include <sys/systm.h>
! 42: #include <sys/device.h>
! 43: #include <sys/mbuf.h>
! 44: #include <sys/socket.h>
! 45: #include <sys/syslog.h>
! 46:
! 47: #include <net/if.h>
! 48: #include <net/if_dl.h>
! 49: #include <net/if_types.h>
! 50: #include <net/if_media.h>
! 51:
! 52: #ifdef INET
! 53: #include <netinet/in.h>
! 54: #include <netinet/in_systm.h>
! 55: #include <netinet/in_var.h>
! 56: #include <netinet/ip.h>
! 57: #include <netinet/if_ether.h>
! 58: #endif
! 59:
! 60: #include <machine/bus.h>
! 61:
! 62: #include <dev/mii/miivar.h>
! 63: #include <dev/mii/mii.h>
! 64: #include <dev/mii/mii_bitbang.h>
! 65:
! 66: #include <dev/ic/dp8390reg.h>
! 67: #include <dev/ic/dp8390var.h>
! 68:
! 69: #include <dev/ic/ne2000reg.h>
! 70: #include <dev/ic/ne2000var.h>
! 71:
! 72: #include <dev/ic/dl10019reg.h>
! 73: #include <dev/ic/dl10019var.h>
! 74:
! 75: int dl10019_mii_readreg(struct device *, int, int);
! 76: void dl10019_mii_writereg(struct device *, int, int, int);
! 77: void dl10019_mii_statchg(struct device *);
! 78:
! 79: void dl10019_mii_reset(struct dp8390_softc *);
! 80:
! 81: /*
! 82: * MII bit-bang glue.
! 83: */
! 84: u_int32_t dl10019_mii_bitbang_read(struct device *);
! 85: void dl10019_mii_bitbang_write(struct device *, u_int32_t);
! 86:
! 87: const struct mii_bitbang_ops dl10019_mii_bitbang_ops = {
! 88: dl10019_mii_bitbang_read,
! 89: dl10019_mii_bitbang_write,
! 90: {
! 91: DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
! 92: DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
! 93: DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
! 94: DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
! 95: 0, /* MII_BIT_DIR_PHY_HOST */
! 96: }
! 97: };
! 98:
! 99: const struct mii_bitbang_ops dl10022_mii_bitbang_ops = {
! 100: dl10019_mii_bitbang_read,
! 101: dl10019_mii_bitbang_write,
! 102: {
! 103: DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
! 104: DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
! 105: DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
! 106: DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
! 107: 0, /* MII_BIT_DIR_PHY_HOST */
! 108: }
! 109: };
! 110:
! 111: void
! 112: dl10019_mii_reset(struct dp8390_softc *sc)
! 113: {
! 114: struct ne2000_softc *nsc = (void *) sc;
! 115: int i;
! 116:
! 117: if (nsc->sc_type != NE2000_TYPE_DL10022)
! 118: return;
! 119:
! 120: for (i = 0; i < 2; i++) {
! 121: bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
! 122: 0x08);
! 123: DELAY(1);
! 124: bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
! 125: 0x0c);
! 126: DELAY(1);
! 127: }
! 128: bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00);
! 129: }
! 130:
! 131: void
! 132: dl10019_media_init(struct dp8390_softc *sc)
! 133: {
! 134: struct ifnet *ifp = &sc->sc_arpcom.ac_if;
! 135:
! 136: sc->sc_mii.mii_ifp = ifp;
! 137: sc->sc_mii.mii_readreg = dl10019_mii_readreg;
! 138: sc->sc_mii.mii_writereg = dl10019_mii_writereg;
! 139: sc->sc_mii.mii_statchg = dl10019_mii_statchg;
! 140: ifmedia_init(&sc->sc_mii.mii_media, 0, dp8390_mediachange,
! 141: dp8390_mediastatus);
! 142:
! 143: dl10019_mii_reset(sc);
! 144:
! 145: mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
! 146: MII_OFFSET_ANY, 0);
! 147:
! 148: if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
! 149: ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
! 150: ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
! 151: } else
! 152: ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
! 153: }
! 154:
! 155: void
! 156: dl10019_media_fini(struct dp8390_softc *sc)
! 157: {
! 158: mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
! 159: }
! 160:
! 161: int
! 162: dl10019_mediachange(struct dp8390_softc *sc)
! 163: {
! 164: mii_mediachg(&sc->sc_mii);
! 165: return (0);
! 166: }
! 167:
! 168: void
! 169: dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
! 170: {
! 171: mii_pollstat(&sc->sc_mii);
! 172: ifmr->ifm_status = sc->sc_mii.mii_media_status;
! 173: ifmr->ifm_active = sc->sc_mii.mii_media_active;
! 174: }
! 175:
! 176: void
! 177: dl10019_init_card(struct dp8390_softc *sc)
! 178: {
! 179: dl10019_mii_reset(sc);
! 180: mii_mediachg(&sc->sc_mii);
! 181: }
! 182:
! 183: void
! 184: dl10019_stop_card(struct dp8390_softc *sc)
! 185: {
! 186: mii_down(&sc->sc_mii);
! 187: }
! 188:
! 189: u_int32_t
! 190: dl10019_mii_bitbang_read(struct device *self)
! 191: {
! 192: struct dp8390_softc *sc = (void *) self;
! 193:
! 194: /* We're already in Page 0. */
! 195: return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) &
! 196: ~DL0_GPIO_PRESERVE);
! 197: }
! 198:
! 199: void
! 200: dl10019_mii_bitbang_write(struct device *self, u_int32_t val)
! 201: {
! 202: struct dp8390_softc *sc = (void *) self;
! 203: u_int8_t gpio;
! 204:
! 205: /* We're already in Page 0. */
! 206: gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO);
! 207: bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
! 208: (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE));
! 209: }
! 210:
! 211: int
! 212: dl10019_mii_readreg(struct device *self, int phy, int reg)
! 213: {
! 214: struct ne2000_softc *nsc = (void *) self;
! 215: const struct mii_bitbang_ops *ops;
! 216:
! 217: ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
! 218: &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
! 219:
! 220: return (mii_bitbang_readreg(self, ops, phy, reg));
! 221: }
! 222:
! 223: void
! 224: dl10019_mii_writereg(struct device *self, int phy, int reg, int val)
! 225: {
! 226: struct ne2000_softc *nsc = (void *) 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: mii_bitbang_writereg(self, ops, phy, reg, val);
! 233: }
! 234:
! 235: void
! 236: dl10019_mii_statchg(struct device *self)
! 237: {
! 238: struct dp8390_softc *sc = (void *) self;
! 239: struct ne2000_softc *nsc = (void *) self;
! 240:
! 241: /*
! 242: * Disable collision detection on the DL10022 if
! 243: * we are on a full-duplex link.
! 244: */
! 245: if (nsc->sc_type == NE2000_TYPE_DL10022) {
! 246: u_int8_t diag;
! 247:
! 248: if (sc->sc_mii.mii_media_active & IFM_FDX)
! 249: diag = DL0_DIAG_NOCOLLDETECT;
! 250: else
! 251: diag = 0;
! 252: bus_space_write_1(sc->sc_regt, sc->sc_regh,
! 253: NEDL_DL0_DIAG, diag);
! 254: }
! 255: }
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