1 /* $NetBSD: if_le.c,v 1.1 2001/05/14 18:23:07 drochner Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1999 5 * Matthias Drochner. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 */ 28 29 #include "opt_inet.h" 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/socket.h> 34 #include <sys/device.h> 35 36 #include <net/if.h> 37 #include <net/if_ether.h> 38 #include <net/if_media.h> 39 40 #ifdef INET 41 #include <netinet/in.h> 42 #include <netinet/if_inarp.h> 43 #endif 44 45 #include <machine/cpu.h> 46 #include <machine/pte.h> 47 48 #include <machine/autoconf.h> 49 50 #include <dev/ic/lancereg.h> 51 #include <dev/ic/lancevar.h> 52 #include <dev/ic/am79900reg.h> 53 #include <dev/ic/am79900var.h> 54 55 #include <cesfic/cesfic/isr.h> 56 57 int lematch __P((struct device *, struct cfdata *, void *)); 58 void leattach __P((struct device *, struct device *, void *)); 59 60 struct cfattach le_ca = { 61 sizeof(struct am79900_softc), lematch, leattach 62 }; 63 64 int leintr __P((void *)); 65 66 void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 67 u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t)); 68 69 static char *lebase, *lemembase; 70 71 void 72 lewrcsr(sc, port, val) 73 struct lance_softc *sc; 74 u_int16_t port, val; 75 { 76 *(volatile int *)(lebase + 4) = port; 77 *(volatile int *)(lebase + 0) = val; 78 } 79 80 u_int16_t 81 lerdcsr(sc, port) 82 struct lance_softc *sc; 83 u_int16_t port; 84 { 85 u_int16_t val; 86 87 *(volatile int *)(lebase + 4) = port; 88 val = *(volatile int *)(lebase + 0); 89 return (val); 90 } 91 92 int 93 lematch(parent, match, aux) 94 struct device *parent; 95 struct cfdata *match; 96 void *aux; 97 { 98 return (1); 99 } 100 101 /* 102 * Interface exists: make available by filling in network interface 103 * record. System will initialize the interface when it is ready 104 * to accept packets. 105 */ 106 extern void sic_enable_int __P((int, int, int, int, int)); 107 static char hwa[6] = {0x00,0x80,0xa2,0x00,0x30,0x23}; 108 void 109 leattach(parent, self, aux) 110 struct device *parent, *self; 111 void *aux; 112 { 113 int i; 114 struct lance_softc *sc = (struct lance_softc *)self; 115 116 mainbus_map(0x4c000000, 0x10000, 0, (void **)&lemembase); 117 mainbus_map(0x48000000, 0x1000, 0, (void **)&lebase); 118 119 sc->sc_mem = lemembase; 120 sc->sc_conf3 = LE_C3_BSWP; 121 sc->sc_addr = 0x4c000000; 122 sc->sc_memsize = 64 * 1024; 123 124 if (cesfic_getetheraddr(sc->sc_enaddr)) { 125 /* fallback */ 126 for (i = 0; i < sizeof(sc->sc_enaddr); i++) { 127 sc->sc_enaddr[i] = hwa[i]; 128 } 129 } 130 131 sc->sc_copytodesc = lance_copytobuf_contig; 132 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 133 sc->sc_copytobuf = lance_copytobuf_contig; 134 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 135 sc->sc_zerobuf = lance_zerobuf_contig; 136 137 sc->sc_rdcsr = lerdcsr; 138 sc->sc_wrcsr = lewrcsr; 139 sc->sc_hwinit = NULL; 140 141 lewrcsr(sc, 4, 0x44); 142 am79900_config((struct am79900_softc *)sc); 143 144 /* Establish the interrupt handler. */ 145 (void) isrlink(leintr, sc, 3, ISRPRI_NET); 146 sic_enable_int(17, 0, 1, 3, 0); 147 } 148 149 int 150 leintr(arg) 151 void *arg; 152 { 153 struct lance_softc *sc = arg; 154 u_int16_t isr4; 155 156 isr4 = lerdcsr(sc, 4); 157 if (isr4 & 0x08) { 158 lewrcsr(sc, 4, isr4); 159 return (1); 160 } 161 162 return (am79900_intr(sc)); 163 } 164