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if_le.c revision 1.3.20.1
      1 /*	$NetBSD: if_le.c,v 1.3.20.1 1999/12/27 18:33:06 wrstuden Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Adam Glass and Gordon W. Ross.
      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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include "opt_inet.h"
     40 #include "bpfilter.h"
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/mbuf.h>
     45 #include <sys/syslog.h>
     46 #include <sys/socket.h>
     47 #include <sys/device.h>
     48 
     49 #include <net/if.h>
     50 #include <net/if_ether.h>
     51 #include <net/if_media.h>
     52 
     53 #ifdef INET
     54 #include <netinet/in.h>
     55 #include <netinet/if_inarp.h>
     56 #endif
     57 
     58 #include <machine/autoconf.h>
     59 #include <machine/cpu.h>
     60 #include <machine/adrsmap.h>
     61 
     62 #include <dev/ic/lancereg.h>
     63 #include <dev/ic/lancevar.h>
     64 #include <dev/ic/am7990reg.h>
     65 #include <dev/ic/am7990var.h>
     66 
     67 /*
     68  * LANCE registers.
     69  * The real stuff is in dev/ic/am7990reg.h
     70  */
     71 struct lereg1 {
     72 	volatile u_int16_t	ler1_rdp;	/* data port */
     73 	volatile u_int16_t	ler1_rap;	/* register select port */
     74 };
     75 
     76 /*
     77  * Ethernet software status per interface.
     78  * The real stuff is in dev/ic/am7990var.h
     79  */
     80 struct	le_softc {
     81 	struct	am7990_softc sc_am7990;	/* glue to MI code */
     82 
     83 	struct	lereg1 *sc_r1;		/* LANCE registers */
     84 };
     85 
     86 static int	le_match __P((struct device *, struct cfdata *, void *));
     87 static void	le_attach __P((struct device *, struct device *, void *));
     88 
     89 struct cfattach le_ca = {
     90 	sizeof(struct le_softc), le_match, le_attach
     91 };
     92 
     93 #if defined(_KERNEL) && !defined(_LKM)
     94 #include "opt_ddb.h"
     95 #endif
     96 
     97 #ifdef DDB
     98 #define	integrate
     99 #define hide
    100 #else
    101 #define	integrate	static __inline
    102 #define hide		static
    103 #endif
    104 
    105 hide void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
    106 hide u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
    107 
    108 hide void
    109 lewrcsr(sc, port, val)
    110 	struct lance_softc *sc;
    111 	u_int16_t port, val;
    112 {
    113 	register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
    114 
    115 	ler1->ler1_rap = port;
    116 	ler1->ler1_rdp = val;
    117 }
    118 
    119 hide u_int16_t
    120 lerdcsr(sc, port)
    121 	struct lance_softc *sc;
    122 	u_int16_t port;
    123 {
    124 	register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
    125 	u_int16_t val;
    126 
    127 	ler1->ler1_rap = port;
    128 	val = ler1->ler1_rdp;
    129 	return (val);
    130 }
    131 
    132 int
    133 le_match(parent, cf, aux)
    134 	struct device *parent;
    135 	struct cfdata *cf;
    136 	void *aux;
    137 {
    138 	struct confargs *ca = aux;
    139 	int addr;
    140 
    141 	if (strcmp(ca->ca_name, "le"))
    142 		return 0;
    143 
    144 	switch(cf->cf_unit) {
    145 
    146 	case 0:
    147 		addr = LANCE_PORT;
    148 		break;
    149 	case 1:
    150 		addr = LANCE_PORT1;
    151 		break;
    152 	case 2:
    153 		addr = LANCE_PORT2;
    154 		break;
    155 
    156 	default:
    157 		return 0;
    158 	}
    159 
    160 	if (badaddr((void *)addr, 1))
    161 		return 0;
    162 
    163 	return 1;
    164 }
    165 
    166 void
    167 le_attach(parent, self, aux)
    168 	struct device *parent, *self;
    169 	void *aux;
    170 {
    171 	struct le_softc *lesc = (struct le_softc *)self;
    172 	struct lance_softc *sc = &lesc->sc_am7990.lsc;
    173 	/*struct confargs *ca = aux;*/
    174 	int intlevel;
    175 	u_char *p;
    176 
    177 	intlevel = self->dv_cfdata->cf_level;
    178 	if (intlevel == -1) {
    179 		printf(": interrupt level not configured\n");
    180 		return;
    181 	}
    182 	printf(" level %d", intlevel);
    183 
    184 	switch (sc->sc_dev.dv_unit) {
    185 
    186 	case 0:
    187 		lesc->sc_r1 = (void *)LANCE_PORT;
    188 		sc->sc_mem = (void *)LANCE_MEMORY;
    189 		p = (u_char *)(ETHER_ID+16);
    190 		break;
    191 	case 1:
    192 		lesc->sc_r1 = (void *)LANCE_PORT1;
    193 		sc->sc_mem = (void *)LANCE_MEMORY1;
    194 		p = (u_char *)(ETHER_ID1+16);
    195 		break;
    196 	case 2:
    197 		lesc->sc_r1 = (void *)LANCE_PORT2;
    198 		sc->sc_mem = (void *)LANCE_MEMORY2;
    199 		p = (u_char *)(ETHER_ID2+16);
    200 		break;
    201 
    202 	default:
    203 		panic("le_attach");
    204 	}
    205 
    206 	sc->sc_memsize = 0x4000;	/* 16K */
    207 	sc->sc_addr = (int)sc->sc_mem & 0x00ffffff;
    208 	sc->sc_conf3 = LE_C3_BSWP|LE_C3_BCON;
    209 
    210 	sc->sc_enaddr[0] = (*p++ << 4);
    211 	sc->sc_enaddr[0] |= *p++ & 0x0f;
    212 	sc->sc_enaddr[1] = (*p++ << 4);
    213 	sc->sc_enaddr[1] |= *p++ & 0x0f;
    214 	sc->sc_enaddr[2] = (*p++ << 4);
    215 	sc->sc_enaddr[2] |= *p++ & 0x0f;
    216 	sc->sc_enaddr[3] = (*p++ << 4);
    217 	sc->sc_enaddr[3] |= *p++ & 0x0f;
    218 	sc->sc_enaddr[4] = (*p++ << 4);
    219 	sc->sc_enaddr[4] |= *p++ & 0x0f;
    220 	sc->sc_enaddr[5] = (*p++ << 4);
    221 	sc->sc_enaddr[5] |= *p++ & 0x0f;
    222 
    223 	sc->sc_copytodesc = lance_copytobuf_contig;
    224 	sc->sc_copyfromdesc = lance_copyfrombuf_contig;
    225 	sc->sc_copytobuf = lance_copytobuf_contig;
    226 	sc->sc_copyfrombuf = lance_copyfrombuf_contig;
    227 	sc->sc_zerobuf = lance_zerobuf_contig;
    228 
    229 	sc->sc_rdcsr = lerdcsr;
    230 	sc->sc_wrcsr = lewrcsr;
    231 	sc->sc_hwinit = NULL;
    232 
    233 	am7990_config(&lesc->sc_am7990);
    234 
    235 	switch (sc->sc_dev.dv_unit) {
    236 	case 0:
    237 		hb_intr_establish(intlevel, IPL_NET, am7990_intr, sc);
    238 		break;
    239 	default:
    240 		hb_intr_establish(intlevel, IPL_NET, am7990_intr, sc);
    241 		break;
    242 	}
    243 }
    244