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if_le.c revision 1.11.2.4
      1 /*	$NetBSD: if_le.c,v 1.11.2.4 2005/02/06 08:59:22 skrll 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 <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.11.2.4 2005/02/06 08:59:22 skrll Exp $");
     41 
     42 #include "opt_inet.h"
     43 #include "bpfilter.h"
     44 
     45 #include <sys/param.h>
     46 #include <sys/systm.h>
     47 #include <sys/mbuf.h>
     48 #include <sys/syslog.h>
     49 #include <sys/socket.h>
     50 #include <sys/device.h>
     51 
     52 #include <net/if.h>
     53 #include <net/if_ether.h>
     54 #include <net/if_media.h>
     55 
     56 #ifdef INET
     57 #include <netinet/in.h>
     58 #include <netinet/if_inarp.h>
     59 #endif
     60 
     61 #include <machine/cpu.h>
     62 #include <machine/adrsmap.h>
     63 
     64 #include <dev/ic/lancereg.h>
     65 #include <dev/ic/lancevar.h>
     66 #include <dev/ic/am7990reg.h>
     67 #include <dev/ic/am7990var.h>
     68 
     69 #include <newsmips/dev/hbvar.h>
     70 
     71 /*
     72  * LANCE registers.
     73  * The real stuff is in dev/ic/am7990reg.h
     74  */
     75 struct lereg1 {
     76 	volatile uint16_t	ler1_rdp;	/* data port */
     77 	volatile uint16_t	ler1_rap;	/* register select port */
     78 };
     79 
     80 /*
     81  * Ethernet software status per interface.
     82  * The real stuff is in dev/ic/am7990var.h
     83  */
     84 struct	le_softc {
     85 	struct	am7990_softc sc_am7990;	/* glue to MI code */
     86 
     87 	struct	lereg1 *sc_r1;		/* LANCE registers */
     88 };
     89 
     90 static int	le_match(struct device *, struct cfdata *, void *);
     91 static void	le_attach(struct device *, struct device *, void *);
     92 
     93 CFATTACH_DECL(le, sizeof(struct le_softc),
     94     le_match, le_attach, NULL, NULL);
     95 
     96 #if defined(_KERNEL_OPT)
     97 #include "opt_ddb.h"
     98 #endif
     99 
    100 #ifdef DDB
    101 #define	integrate
    102 #define hide
    103 #else
    104 #define	integrate	static __inline
    105 #define hide		static
    106 #endif
    107 
    108 hide void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
    109 hide uint16_t lerdcsr(struct lance_softc *, uint16_t);
    110 
    111 hide void
    112 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
    113 {
    114 	struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
    115 
    116 	ler1->ler1_rap = port;
    117 	ler1->ler1_rdp = val;
    118 }
    119 
    120 hide uint16_t
    121 lerdcsr(struct lance_softc *sc, uint16_t port)
    122 {
    123 	struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
    124 	uint16_t val;
    125 
    126 	ler1->ler1_rap = port;
    127 	val = ler1->ler1_rdp;
    128 	return val;
    129 }
    130 
    131 int
    132 le_match(struct device *parent, struct cfdata *cf, void *aux)
    133 {
    134 	struct hb_attach_args *ha = aux;
    135 
    136 	if (strcmp(ha->ha_name, "le"))
    137 		return 0;
    138 
    139 	if (hb_badaddr((void *)ha->ha_addr, 1)) /* XXX */
    140 		return 0;
    141 
    142 	return 1;
    143 }
    144 
    145 void
    146 le_attach(struct device *parent, struct device *self, void *aux)
    147 {
    148 	struct le_softc *lesc = (struct le_softc *)self;
    149 	struct lance_softc *sc = &lesc->sc_am7990.lsc;
    150 	struct hb_attach_args *ha = aux;
    151 	int intlevel, intmask;
    152 	u_char *p;
    153 
    154 	intlevel = ha->ha_level;
    155 	if (intlevel == -1) {
    156 		printf(": interrupt level not configured\n");
    157 		return;
    158 	}
    159 	printf(" level %d", intlevel);
    160 
    161 	switch (ha->ha_addr) {
    162 
    163 	case LANCE_PORT:
    164 		sc->sc_mem = (void *)LANCE_MEMORY;
    165 		p = (u_char *)(ETHER_ID + 16);
    166 		intmask = INTST1_LANCE;
    167 		break;
    168 	case LANCE_PORT1:
    169 		sc->sc_mem = (void *)LANCE_MEMORY1;
    170 		p = (u_char *)(ETHER_ID1 + 16);
    171 		intmask = INTST1_SLOT3; /* XXX not tested */
    172 		break;
    173 	case LANCE_PORT2:
    174 		sc->sc_mem = (void *)LANCE_MEMORY2;
    175 		p = (u_char *)(ETHER_ID2 + 16);
    176 		intmask = INTST1_SLOT3; /* XXX not tested */
    177 		break;
    178 
    179 	default:
    180 		printf(": unknown LANCE addr\n");
    181 		return;
    182 	}
    183 
    184 	lesc->sc_r1 = (void *)ha->ha_addr;
    185 
    186 	sc->sc_memsize = 0x4000;	/* 16K */
    187 	sc->sc_addr = (int)sc->sc_mem & 0x00ffffff;
    188 	sc->sc_conf3 = LE_C3_BSWP|LE_C3_BCON;
    189 
    190 	sc->sc_enaddr[0] = (*p++ << 4);
    191 	sc->sc_enaddr[0] |= *p++ & 0x0f;
    192 	sc->sc_enaddr[1] = (*p++ << 4);
    193 	sc->sc_enaddr[1] |= *p++ & 0x0f;
    194 	sc->sc_enaddr[2] = (*p++ << 4);
    195 	sc->sc_enaddr[2] |= *p++ & 0x0f;
    196 	sc->sc_enaddr[3] = (*p++ << 4);
    197 	sc->sc_enaddr[3] |= *p++ & 0x0f;
    198 	sc->sc_enaddr[4] = (*p++ << 4);
    199 	sc->sc_enaddr[4] |= *p++ & 0x0f;
    200 	sc->sc_enaddr[5] = (*p++ << 4);
    201 	sc->sc_enaddr[5] |= *p++ & 0x0f;
    202 
    203 	sc->sc_copytodesc = lance_copytobuf_contig;
    204 	sc->sc_copyfromdesc = lance_copyfrombuf_contig;
    205 	sc->sc_copytobuf = lance_copytobuf_contig;
    206 	sc->sc_copyfrombuf = lance_copyfrombuf_contig;
    207 	sc->sc_zerobuf = lance_zerobuf_contig;
    208 
    209 	sc->sc_rdcsr = lerdcsr;
    210 	sc->sc_wrcsr = lewrcsr;
    211 	sc->sc_hwinit = NULL;
    212 
    213 	am7990_config(&lesc->sc_am7990);
    214 	hb_intr_establish(intlevel, intmask, IPL_NET, am7990_intr, sc);
    215 }
    216