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tlphy.c revision 1.1
      1 /*  $NetBSD: tlphy.c,v 1.1 1997/10/17 17:34:05 bouyer Exp $   */
      2 
      3 /*
      4  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *  This product includes software developed by Manuel Bouyer.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32  /* Driver for Texas Instruments's thunderland internal PHY */
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/kernel.h>
     37 #include <sys/device.h>
     38 #include <sys/malloc.h>
     39 #include <sys/proc.h>
     40 #include <sys/socket.h>
     41 #include <net/if.h>
     42 #include <net/if_media.h>
     43 
     44 
     45 #include <dev/mii/mii_adapter.h>
     46 #include <dev/mii/mii_adapters_id.h>
     47 #include <dev/mii/mii_phy.h>
     48 #include <dev/mii/generic_phy.h>
     49 #include <dev/mii/tlphy.h>
     50 
     51 static int tlphy_up __P((struct phy_softc *sc));
     52 void tlphy_pdown __P((void *v));
     53 int tlphy_media_set __P((int, void *));
     54 int tlphy_media_set_aui __P((struct phy_softc *));
     55 int tlphy_status __P((int, void*));
     56 
     57 #ifdef __BROKEN_INDIRECT_CONFIG
     58 int tlphymatch __P((struct device *, void *, void *));
     59 #else
     60 int tlphymatch __P((struct device *, struct cfdata *, void *));
     61 #endif
     62 void tlphyattach __P((struct device *, struct device *, void *));
     63 
     64 struct cfattach tlphy_ca = {
     65 	sizeof(struct phy_softc), tlphymatch, tlphyattach
     66 };
     67 
     68 struct cfdriver tlphy_cd = {
     69 	NULL, "tlphy", DV_IFNET
     70 };
     71 
     72 int
     73 tlphymatch(parent, match, aux)
     74     struct device *parent;
     75 #ifdef __BROKEN_INDIRECT_CONFIG
     76 	void *match;
     77 #else
     78 	struct cfdata *match;
     79 #endif
     80 	void *aux;
     81 {
     82 	mii_phy_t *phy = aux;
     83 
     84 	if (phy->phy_id == 0x40005014 || phy->phy_id == 0x40005015)
     85 		return 1;
     86 	return 0;
     87 }
     88 
     89 void
     90 tlphyattach(parent, self, aux)
     91     struct device *parent, *self;
     92 	void *aux;
     93 {
     94 	struct phy_softc *sc = (struct phy_softc *)self;
     95 
     96 	sc->phy_link = aux;
     97 	sc->phy_link->phy_softc = sc;
     98 	sc->phy_link->phy_media_set = tlphy_media_set;
     99 	sc->phy_link->phy_status = tlphy_status;
    100 	sc->phy_link->phy_pdown = tlphy_pdown;
    101 
    102 	phy_reset(sc);
    103 
    104 	switch (sc->phy_link->adapter_id) {
    105 	case COMPAQ_INT_NETLIGENT_10_100:
    106 		sc->phy_link->phy_media = PHY_BNC;
    107 		break;
    108 	case COMPAQ_NETLIGENT_10_100:
    109 		sc->phy_link->phy_media = 0;
    110 		break;
    111 	case COMPAQ_INT_NETFLEX:
    112 	case COMPAQ_NETFLEX_BNC:
    113 		sc->phy_link->phy_media = PHY_BNC | PHY_10baseT;
    114 		break;
    115 	default:
    116 		sc->phy_link->phy_media = PHY_AUI;
    117 		if (phy_media_probe(sc) != 0) {
    118 			printf(" (autoconfig failed)");
    119 			break;
    120 		}
    121 	}
    122 
    123 	if(sc->phy_link->phy_media) {
    124 		printf(": ");
    125 		phy_media_print(sc->phy_link->phy_media);
    126 	}
    127 	printf("\n");
    128 }
    129 
    130 void tlphy_pdown(v)
    131 	void *v;
    132 {
    133 	struct phy_softc *sc = v;
    134 	mii_phy_t *phy_link = sc->phy_link;
    135 	mii_writereg(phy_link->mii_softc, phy_link->dev, PHY_CONTROL,
    136 		CTRL_ISO | CTRL_PDOWN);
    137 }
    138 
    139 static int tlphy_up(sc)
    140 	struct phy_softc *sc;
    141 {
    142 	int s;
    143 	mii_phy_t *phy_link = sc->phy_link;
    144 	int control, i;
    145 	s = splnet();
    146 
    147 	/* set control registers to a reasonable value, wait for power_up */
    148 	mii_writereg(phy_link->mii_softc, phy_link->dev, PHY_CONTROL,
    149 		CTRL_LOOPBK);
    150 	mii_writereg(phy_link->mii_softc, phy_link->dev, PHY_TL_CTRL,
    151 		0);
    152 	i = 0;
    153 	do {
    154 		DELAY(100000);
    155 		control = mii_readreg(phy_link->mii_softc, phy_link->dev,
    156 			PHY_TL_ST);
    157 	} while ((control < 0 || (control & TL_ST_PHOK) == 0) && ++i < 10);
    158 	if (control < 0 || (control & TL_ST_PHOK) == 0) {
    159 		splx(s);
    160 		printf("%s: power-up failed\n", sc->sc_dev.dv_xname);
    161 		return 0;
    162 	}
    163 	if ( phy_reset(sc) == 0) {
    164 		splx(s);
    165 		return 0;
    166 	}
    167 	splx(s);
    168 	return 1;
    169 }
    170 
    171 int tlphy_media_set(media, v)
    172 	int media;
    173 	void *v;
    174 {
    175 	struct phy_softc *sc = v;
    176 	int subtype;
    177 
    178 	if (IFM_TYPE(media) != IFM_ETHER)
    179 		return EINVAL;
    180 
    181 	if (tlphy_up(sc) == 0)
    182 		return EIO;
    183 
    184 	subtype = IFM_SUBTYPE(media);
    185 	switch (subtype) {
    186 	case IFM_10_2:
    187 	case IFM_10_5:
    188 		if ((subtype == IFM_10_2 && (sc->phy_link->phy_media & PHY_BNC)) ||
    189 			(subtype == IFM_10_5 && (sc->phy_link->phy_media & PHY_AUI)))
    190 			return tlphy_media_set_aui(sc);
    191 		else
    192 			return EINVAL;
    193 	case IFM_10_T:
    194 		return phy_media_set_10_100(sc, media);
    195 	case IFM_AUTO:
    196 		return ENODEV;
    197 	default:
    198 		return EINVAL;
    199 	}
    200 }
    201 
    202 int
    203 tlphy_media_set_aui(sc)
    204 	struct phy_softc *sc;
    205 {
    206 	mii_phy_t *phy_link = sc->phy_link;
    207 
    208 	mii_writereg(phy_link->mii_softc, phy_link->dev,
    209 		PHY_CONTROL, 0);
    210 	mii_writereg(phy_link->mii_softc, phy_link->dev,
    211 		PHY_TL_CTRL, TL_CTRL_AUISEL);
    212 	DELAY(100000);
    213 	return 0;
    214 }
    215 
    216 int tlphy_status(media, v)
    217 	int media;
    218 	void *v;
    219 {
    220 	struct phy_softc *sc = v;
    221 	int reg;
    222 
    223 	if (IFM_SUBTYPE(media) == IFM_10_T)
    224 		return phy_status(media, sc);
    225 	reg = mii_readreg(sc->phy_link->mii_softc, sc->phy_link->dev,
    226 		PHY_TL_ST);
    227 	if ((reg & PHY_TL_ST) == 0)
    228 		return ENETDOWN;
    229 	return 0;
    230 }
    231