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rtl80x9.c revision 1.15
      1 /*	$NetBSD: rtl80x9.c,v 1.15 2009/03/14 15:36:17 dsl Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 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 of the Numerical Aerospace Simulation Facility,
      9  * NASA Ames Research Center.
     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  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: rtl80x9.c,v 1.15 2009/03/14 15:36:17 dsl Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 #include <sys/mbuf.h>
     39 #include <sys/syslog.h>
     40 #include <sys/socket.h>
     41 #include <sys/device.h>
     42 
     43 #include <net/if.h>
     44 #include <net/if_ether.h>
     45 #include <net/if_media.h>
     46 
     47 #include <sys/bus.h>
     48 #include <sys/intr.h>
     49 
     50 #include <dev/ic/dp8390reg.h>
     51 #include <dev/ic/dp8390var.h>
     52 
     53 #include <dev/ic/ne2000reg.h>
     54 #include <dev/ic/ne2000var.h>
     55 
     56 #include <dev/ic/rtl80x9reg.h>
     57 #include <dev/ic/rtl80x9var.h>
     58 
     59 int
     60 rtl80x9_mediachange(struct dp8390_softc *dsc)
     61 {
     62 
     63 	/*
     64 	 * Current media is already set up.  Just reset the interface
     65 	 * to let the new value take hold.  The new media will be
     66 	 * set up in ne_pci_rtl8029_init_card() called via dp8390_init().
     67 	 */
     68 	dp8390_reset(dsc);
     69 	return (0);
     70 }
     71 
     72 void
     73 rtl80x9_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
     74 {
     75 	struct ifnet *ifp = &sc->sc_ec.ec_if;
     76 	u_int8_t cr_proto = sc->cr_proto |
     77 	    ((ifp->if_flags & IFF_RUNNING) ? ED_CR_STA : ED_CR_STP);
     78 
     79 	/*
     80 	 * Sigh, can detect which media is being used, but can't
     81 	 * detect if we have link or not.
     82 	 */
     83 
     84 	/* Set NIC to page 3 registers. */
     85 	NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_3);
     86 
     87 	if (NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG0) &
     88 	    RTL3_CONFIG0_BNC)
     89 		ifmr->ifm_active = IFM_ETHER|IFM_10_2;
     90 	else {
     91 		ifmr->ifm_active = IFM_ETHER|IFM_10_T;
     92 		if (NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3) &
     93 		    RTL3_CONFIG3_FUDUP)
     94 			ifmr->ifm_active |= IFM_FDX;
     95 	}
     96 
     97 	/* Set NIC to page 0 registers. */
     98 	NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_0);
     99 }
    100 
    101 void
    102 rtl80x9_init_card(struct dp8390_softc *sc)
    103 {
    104 	struct ifmedia *ifm = &sc->sc_media;
    105 	struct ifnet *ifp = &sc->sc_ec.ec_if;
    106 	u_int8_t cr_proto = sc->cr_proto |
    107 	    ((ifp->if_flags & IFF_RUNNING) ? ED_CR_STA : ED_CR_STP);
    108 	u_int8_t reg;
    109 
    110 	/* Set NIC to page 3 registers. */
    111 	NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_3);
    112 
    113 	/* write enable config1-3. */
    114 	NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_EECR,
    115 	    RTL3_EECR_EEM1|RTL3_EECR_EEM0);
    116 
    117 	/* First, set basic media type. */
    118 	reg = NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2);
    119 	reg &= ~(RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0);
    120 	switch (IFM_SUBTYPE(ifm->ifm_cur->ifm_media)) {
    121 	case IFM_AUTO:
    122 		/* Nothing to do; both bits clear == auto-detect. */
    123 		break;
    124 
    125 	case IFM_10_T:
    126 		/*
    127 		 * According to docs, this should be:
    128 		 * reg |= RTL3_CONFIG2_PL0;
    129 		 * but this doesn't work, so make it the same as AUTO.
    130 		 */
    131 		break;
    132 
    133 	case IFM_10_2:
    134 		reg |= RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0;
    135 		break;
    136 	}
    137 	NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2, reg);
    138 
    139 	/* Now, set duplex mode. */
    140 	reg = NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3);
    141 	if (ifm->ifm_cur->ifm_media & IFM_FDX)
    142 		reg |= RTL3_CONFIG3_FUDUP;
    143 	else
    144 		reg &= ~RTL3_CONFIG3_FUDUP;
    145 	NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3, reg);
    146 
    147 	/* write disable config1-3 */
    148 	NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_EECR, 0);
    149 
    150 	/* Set NIC to page 0 registers. */
    151 	NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_0);
    152 }
    153 
    154 void
    155 rtl80x9_media_init(struct dp8390_softc *sc)
    156 {
    157 	static int rtl80x9_media[] = {
    158 		IFM_ETHER|IFM_AUTO,
    159 		IFM_ETHER|IFM_10_T,
    160 		IFM_ETHER|IFM_10_T|IFM_FDX,
    161 		IFM_ETHER|IFM_10_2,
    162 	};
    163 	static const int rtl80x9_nmedia =
    164 	    sizeof(rtl80x9_media) / sizeof(rtl80x9_media[0]);
    165 
    166 	int i, defmedia;
    167 	u_int8_t conf2, conf3;
    168 
    169 	aprint_normal_dev(sc->sc_dev,
    170 	    "10base2, 10baseT, 10baseT-FDX, auto, default ");
    171 
    172 	bus_space_write_1(sc->sc_regt, sc->sc_regh, ED_P0_CR, ED_CR_PAGE_3);
    173 
    174 	conf2 = bus_space_read_1(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2);
    175 	conf3 = bus_space_read_1(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3);
    176 	printf("[0x%02x 0x%02x] ", conf2, conf3);
    177 
    178 	conf2 &= RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0;
    179 
    180 	switch (conf2) {
    181 	default:
    182 		defmedia = IFM_ETHER|IFM_AUTO;
    183 		printf("auto\n");
    184 		break;
    185 
    186 	case RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0:
    187 	case RTL3_CONFIG2_PL1:	/* XXX rtl docs sys 10base5, but chip cant do */
    188 		defmedia = IFM_ETHER|IFM_10_2;
    189 		printf("10base2\n");
    190 		break;
    191 
    192 	case RTL3_CONFIG2_PL0:
    193 		if (conf3 & RTL3_CONFIG3_FUDUP) {
    194 			defmedia = IFM_ETHER|IFM_10_T|IFM_FDX;
    195 			printf("10baseT-FDX\n");
    196 		} else {
    197 			defmedia = IFM_ETHER|IFM_10_T;
    198 			printf("10baseT\n");
    199 		}
    200 		break;
    201 	}
    202 
    203 	bus_space_write_1(sc->sc_regt, sc->sc_regh, ED_P0_CR, ED_CR_PAGE_0);
    204 
    205 	ifmedia_init(&sc->sc_media, 0, dp8390_mediachange, dp8390_mediastatus);
    206 	for (i = 0; i < rtl80x9_nmedia; i++)
    207 		ifmedia_add(&sc->sc_media, rtl80x9_media[i], 0, NULL);
    208 	ifmedia_set(&sc->sc_media, defmedia);
    209 }
    210