1 /* $NetBSD: if_le.c,v 1.7 2008/04/04 12:25:06 tsutsui 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 <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.7 2008/04/04 12:25:06 tsutsui Exp $"); 31 32 #include "opt_inet.h" 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/socket.h> 37 #include <sys/device.h> 38 39 #include <net/if.h> 40 #include <net/if_ether.h> 41 #include <net/if_media.h> 42 43 #ifdef INET 44 #include <netinet/in.h> 45 #include <netinet/if_inarp.h> 46 #endif 47 48 #include <machine/cpu.h> 49 #include <machine/pte.h> 50 51 #include <machine/autoconf.h> 52 53 #include <dev/ic/lancereg.h> 54 #include <dev/ic/lancevar.h> 55 #include <dev/ic/am79900reg.h> 56 #include <dev/ic/am79900var.h> 57 58 #include <cesfic/cesfic/isr.h> 59 60 int lematch(device_t, cfdata_t, void *); 61 void leattach(device_t, device_t, void *); 62 63 CFATTACH_DECL_NEW(le, sizeof(struct am79900_softc), 64 lematch, leattach, NULL, NULL); 65 66 int leintr(void *); 67 68 void lewrcsr(struct lance_softc *, uint16_t, uint16_t); 69 uint16_t lerdcsr(struct lance_softc *, uint16_t); 70 71 static char *lebase, *lemembase; 72 73 void 74 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 75 { 76 77 *(volatile int *)(lebase + 4) = port; 78 *(volatile int *)(lebase + 0) = val; 79 } 80 81 uint16_t 82 lerdcsr(struct lance_softc *sc, uint16_t port) 83 { 84 uint16_t val; 85 86 *(volatile int *)(lebase + 4) = port; 87 val = *(volatile int *)(lebase + 0); 88 return (val); 89 } 90 91 int 92 lematch(device_t parent, cfdata_t cf, void *aux) 93 { 94 95 return (1); 96 } 97 98 /* 99 * Interface exists: make available by filling in network interface 100 * record. System will initialize the interface when it is ready 101 * to accept packets. 102 */ 103 extern void sic_enable_int(int, int, int, int, int); 104 static char hwa[6] = {0x00,0x80,0xa2,0x00,0x30,0x23}; 105 void 106 leattach(device_t parent, device_t self, void *aux) 107 { 108 struct lance_softc *sc = device_private(self); 109 int i; 110 111 mainbus_map(0x4c000000, 0x10000, 0, (void *)&lemembase); 112 mainbus_map(0x48000000, 0x1000, 0, (void *)&lebase); 113 114 sc->sc_dev = self; 115 sc->sc_mem = lemembase; 116 sc->sc_conf3 = LE_C3_BSWP; 117 sc->sc_addr = 0x4c000000; 118 sc->sc_memsize = 64 * 1024; 119 120 if (cesfic_getetheraddr(sc->sc_enaddr)) { 121 /* fallback */ 122 for (i = 0; i < sizeof(sc->sc_enaddr); i++) { 123 sc->sc_enaddr[i] = hwa[i]; 124 } 125 } 126 127 sc->sc_copytodesc = lance_copytobuf_contig; 128 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 129 sc->sc_copytobuf = lance_copytobuf_contig; 130 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 131 sc->sc_zerobuf = lance_zerobuf_contig; 132 133 sc->sc_rdcsr = lerdcsr; 134 sc->sc_wrcsr = lewrcsr; 135 sc->sc_hwinit = NULL; 136 137 lewrcsr(sc, 4, 0x44); 138 am79900_config((struct am79900_softc *)sc); 139 140 /* Establish the interrupt handler. */ 141 (void) isrlink(leintr, sc, 3, ISRPRI_NET); 142 sic_enable_int(17, 0, 1, 3, 0); 143 } 144 145 int 146 leintr(void *arg) 147 { 148 struct lance_softc *sc = arg; 149 uint16_t isr4; 150 151 isr4 = lerdcsr(sc, 4); 152 if (isr4 & 0x08) { 153 lewrcsr(sc, 4, isr4); 154 return (1); 155 } 156 157 return (am79900_intr(sc)); 158 } 159