1 /* $NetBSD: if_le.c,v 1.53 2024/12/20 23:52:00 tsutsui 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 * 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: if_le.c,v 1.53 2024/12/20 23:52:00 tsutsui Exp $"); 34 35 #include "opt_inet.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/mbuf.h> 40 #include <sys/syslog.h> 41 #include <sys/socket.h> 42 #include <sys/device.h> 43 44 #include <net/if.h> 45 #include <net/if_ether.h> 46 #include <net/if_media.h> 47 48 #ifdef INET 49 #include <netinet/in.h> 50 #include <netinet/if_inarp.h> 51 #endif 52 53 #include <machine/autoconf.h> 54 #include <machine/cpu.h> 55 #include <machine/dvma.h> 56 #include <machine/idprom.h> 57 58 #include <dev/ic/lancereg.h> 59 #include <dev/ic/lancevar.h> 60 #include <dev/ic/am7990reg.h> 61 #include <dev/ic/am7990var.h> 62 63 #define LE_MEMSIZE 0x4000 /* 16K */ 64 65 /* 66 * LANCE registers. 67 * The real stuff is in dev/ic/am7990reg.h 68 */ 69 struct lereg1 { 70 volatile uint16_t ler1_rdp; /* data port */ 71 volatile uint16_t ler1_rap; /* register select port */ 72 }; 73 74 /* 75 * Ethernet software status per interface. 76 * The real stuff is in dev/ic/am7990var.h 77 */ 78 struct le_softc { 79 struct am7990_softc sc_am7990; /* glue to MI code */ 80 81 struct lereg1 *sc_r1; /* LANCE registers */ 82 }; 83 84 static int le_match(device_t, cfdata_t, void *); 85 static void le_attach(device_t, device_t, void *); 86 87 CFATTACH_DECL_NEW(le, sizeof(struct le_softc), 88 le_match, le_attach, NULL, NULL); 89 90 #if defined(_KERNEL_OPT) 91 #include "opt_ddb.h" 92 #endif 93 94 #ifdef DDB 95 #define integrate 96 #define hide 97 #else 98 #define integrate static inline 99 #define hide static 100 #endif 101 102 hide void lewrcsr(struct lance_softc *, uint16_t, uint16_t); 103 hide uint16_t lerdcsr(struct lance_softc *, uint16_t); 104 105 hide void 106 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 107 { 108 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 109 110 ler1->ler1_rap = port; 111 ler1->ler1_rdp = val; 112 } 113 114 hide uint16_t 115 lerdcsr(struct lance_softc *sc, uint16_t port) 116 { 117 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 118 uint16_t val; 119 120 ler1->ler1_rap = port; 121 val = ler1->ler1_rdp; 122 return (val); 123 } 124 125 int 126 le_match(device_t parent, cfdata_t cf, void *aux) 127 { 128 struct confargs *ca = aux; 129 130 /* Make sure there is something there... */ 131 if (bus_peek(ca->ca_bustype, ca->ca_paddr, 2) == -1) 132 return (0); 133 134 /* Default interrupt priority. */ 135 if (ca->ca_intpri == -1) 136 ca->ca_intpri = 3; 137 138 return (1); 139 } 140 141 void 142 le_attach(device_t parent, device_t self, void *aux) 143 { 144 struct le_softc *lesc = device_private(self); 145 struct lance_softc *sc = &lesc->sc_am7990.lsc; 146 struct confargs *ca = aux; 147 148 sc->sc_dev = self; 149 lesc->sc_r1 = bus_mapin(ca->ca_bustype, 150 ca->ca_paddr, sizeof(struct lereg1)); 151 152 sc->sc_memsize = LE_MEMSIZE; 153 sc->sc_mem = dvma_malloc(sc->sc_memsize); 154 sc->sc_addr = dvma_kvtopa(sc->sc_mem, ca->ca_bustype); 155 #ifdef _SUN3X_ 156 sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON; 157 #else 158 sc->sc_conf3 = LE_C3_BSWP; 159 #endif 160 161 idprom_etheraddr(sc->sc_enaddr); 162 163 sc->sc_copytodesc = lance_copytobuf_contig; 164 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 165 sc->sc_copytobuf = lance_copytobuf_contig; 166 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 167 sc->sc_zerobuf = lance_zerobuf_contig; 168 169 sc->sc_rdcsr = lerdcsr; 170 sc->sc_wrcsr = lewrcsr; 171 sc->sc_hwinit = NULL; 172 173 am7990_config(&lesc->sc_am7990); 174 175 /* Install interrupt handler. */ 176 isr_add_autovect(am7990_intr, (void *)sc, ca->ca_intpri); 177 } 178
Indexes created Sat Sep 20 22:09:52 GMT 2025