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ax88190.c revision 1.13
      1 /*	$NetBSD: ax88190.c,v 1.13 2019/01/22 03:42:26 msaitoh 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 Enami Tsugutomo.
      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: ax88190.c,v 1.13 2019/01/22 03:42:26 msaitoh Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/device.h>
     38 #include <sys/socket.h>
     39 
     40 #include <net/if.h>
     41 #include <net/if_dl.h>
     42 #include <net/if_types.h>
     43 #include <net/if_media.h>
     44 #include <net/if_ether.h>
     45 
     46 #include <sys/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/ax88190reg.h>
     59 #include <dev/ic/ax88190var.h>
     60 
     61 static int	ax88190_mii_readreg(device_t, int, int, uint16_t *);
     62 static int	ax88190_mii_writereg(device_t, int, int, uint16_t);
     63 static void	ax88190_mii_statchg(struct ifnet *);
     64 
     65 /*
     66  * MII bit-bang glue.
     67  */
     68 static u_int32_t	ax88190_mii_bitbang_read(device_t);
     69 static void		ax88190_mii_bitbang_write(device_t, u_int32_t);
     70 
     71 static const struct mii_bitbang_ops ax88190_mii_bitbang_ops = {
     72 	ax88190_mii_bitbang_read,
     73 	ax88190_mii_bitbang_write,
     74 	{
     75 		AX88190_MEMR_MDO,	/* MII_BIT_MDO */
     76 		AX88190_MEMR_MDI,	/* MII_BIT_MDI */
     77 		AX88190_MEMR_MDC,	/* MII_BIT_MDC */
     78 		0,			/* MII_BIT_DIR_HOST_PHY */
     79 		AX88190_MEMR_MDIR,	/* MII_BIT_DIR_PHY_HOST */
     80 	}
     81 };
     82 
     83 void
     84 ax88190_media_init(struct dp8390_softc *sc)
     85 {
     86 	struct ifnet *ifp = &sc->sc_ec.ec_if;
     87 
     88 	sc->sc_mii.mii_ifp = ifp;
     89 	sc->sc_mii.mii_readreg = ax88190_mii_readreg;
     90 	sc->sc_mii.mii_writereg = ax88190_mii_writereg;
     91 	sc->sc_mii.mii_statchg = ax88190_mii_statchg;
     92 	ifmedia_init(&sc->sc_mii.mii_media, IFM_IMASK, dp8390_mediachange,
     93 	    dp8390_mediastatus);
     94 
     95 	mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
     96 	    MII_OFFSET_ANY, 0);
     97 
     98 	if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
     99 		ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0,
    100 		    NULL);
    101 		ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
    102 	} else
    103 		ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
    104 }
    105 
    106 void
    107 ax88190_media_fini(struct dp8390_softc *sc)
    108 {
    109 
    110 	mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
    111 }
    112 
    113 int
    114 ax88190_mediachange(struct dp8390_softc *sc)
    115 {
    116 	int rc;
    117 
    118 	if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO)
    119 		return 0;
    120 	return rc;
    121 }
    122 
    123 void
    124 ax88190_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
    125 {
    126 
    127 	mii_pollstat(&sc->sc_mii);
    128 	ifmr->ifm_status = sc->sc_mii.mii_media_status;
    129 	ifmr->ifm_active = sc->sc_mii.mii_media_active;
    130 }
    131 
    132 void
    133 ax88190_init_card(struct dp8390_softc *sc)
    134 {
    135 
    136 	mii_mediachg(&sc->sc_mii);
    137 }
    138 
    139 void
    140 ax88190_stop_card(struct dp8390_softc *sc)
    141 {
    142 
    143 	mii_down(&sc->sc_mii);
    144 }
    145 
    146 static u_int32_t
    147 ax88190_mii_bitbang_read(device_t self)
    148 {
    149 	struct ne2000_softc *sc = device_private(self);
    150 
    151 	return (bus_space_read_1(sc->sc_asict, sc->sc_asich, AX88190_MEMR));
    152 }
    153 
    154 static void
    155 ax88190_mii_bitbang_write(device_t self, uint32_t val)
    156 {
    157 	struct ne2000_softc *sc = device_private(self);
    158 
    159 	bus_space_write_1(sc->sc_asict, sc->sc_asich, AX88190_MEMR, val);
    160 }
    161 
    162 static int
    163 ax88190_mii_readreg(device_t self, int phy, int reg, uint16_t *val)
    164 {
    165 
    166 
    167 	return mii_bitbang_readreg(self, &ax88190_mii_bitbang_ops, phy, reg,
    168 	    val);
    169 }
    170 
    171 static int
    172 ax88190_mii_writereg(device_t self, int phy, int reg, uint16_t val)
    173 {
    174 
    175 	return mii_bitbang_writereg(self, &ax88190_mii_bitbang_ops, phy, reg,
    176 	    val);
    177 }
    178 
    179 static void
    180 ax88190_mii_statchg(struct ifnet *ifp)
    181 {
    182 
    183 	/* XXX */
    184 }
    185