if_le.c revision 1.41
1 /* $NetBSD: if_le.c,v 1.41 1997/04/14 02:33:20 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Ralph Campbell and Rick Macklem. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 40 */ 41 42 #include "bpfilter.h" 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/mbuf.h> 47 #include <sys/syslog.h> 48 #include <sys/socket.h> 49 #include <sys/device.h> 50 51 #include <net/if.h> 52 #include <net/if_ether.h> 53 #include <net/if_media.h> 54 55 #ifdef INET 56 #include <netinet/in.h> 57 #include <netinet/if_inarp.h> 58 #endif 59 60 #include <machine/autoconf.h> 61 #include <machine/cpu.h> 62 #include <machine/intr.h> 63 64 #ifdef USELEDS 65 #include <hp300/hp300/led.h> 66 #endif 67 68 #include <dev/ic/am7990reg.h> 69 #include <dev/ic/am7990var.h> 70 71 #include <hp300/dev/dioreg.h> 72 #include <hp300/dev/diovar.h> 73 #include <hp300/dev/diodevs.h> 74 #include <hp300/dev/if_lereg.h> 75 #include <hp300/dev/if_levar.h> 76 77 int lematch __P((struct device *, struct cfdata *, void *)); 78 void leattach __P((struct device *, struct device *, void *)); 79 80 struct cfattach le_ca = { 81 sizeof(struct le_softc), lematch, leattach 82 }; 83 84 int leintr __P((void *)); 85 86 /* offsets for: ID, REGS, MEM, NVRAM */ 87 int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; 88 89 hide void lewrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t)); 90 hide u_int16_t lerdcsr __P((struct am7990_softc *, u_int16_t)); 91 92 hide void 93 lewrcsr(sc, port, val) 94 struct am7990_softc *sc; 95 u_int16_t port, val; 96 { 97 struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0; 98 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 99 100 do { 101 ler1->ler1_rap = port; 102 } while ((ler0->ler0_status & LE_ACK) == 0); 103 do { 104 ler1->ler1_rdp = val; 105 } while ((ler0->ler0_status & LE_ACK) == 0); 106 } 107 108 hide u_int16_t 109 lerdcsr(sc, port) 110 struct am7990_softc *sc; 111 u_int16_t port; 112 { 113 struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0; 114 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 115 u_int16_t val; 116 117 do { 118 ler1->ler1_rap = port; 119 } while ((ler0->ler0_status & LE_ACK) == 0); 120 do { 121 val = ler1->ler1_rdp; 122 } while ((ler0->ler0_status & LE_ACK) == 0); 123 return (val); 124 } 125 126 int 127 lematch(parent, match, aux) 128 struct device *parent; 129 struct cfdata *match; 130 void *aux; 131 { 132 struct dio_attach_args *da = aux; 133 134 if (da->da_id == DIO_DEVICE_ID_LAN) 135 return (1); 136 return (0); 137 } 138 139 /* 140 * Interface exists: make available by filling in network interface 141 * record. System will initialize the interface when it is ready 142 * to accept packets. 143 */ 144 void 145 leattach(parent, self, aux) 146 struct device *parent, *self; 147 void *aux; 148 { 149 struct lereg0 *ler0; 150 struct dio_attach_args *da = aux; 151 struct le_softc *lesc = (struct le_softc *)self; 152 caddr_t addr; 153 struct am7990_softc *sc = &lesc->sc_am7990; 154 char *cp; 155 int i, ipl; 156 157 addr = iomap(dio_scodetopa(da->da_scode), da->da_size); 158 if (addr == 0) { 159 printf("\n%s: can't map LANCE registers\n", 160 sc->sc_dev.dv_xname); 161 return; 162 } 163 164 ler0 = lesc->sc_r0 = (struct lereg0 *)(lestd[0] + (int)addr); 165 ler0->ler0_id = 0xFF; 166 DELAY(100); 167 168 ipl = DIO_IPL(addr); 169 printf(" ipl %d", ipl); 170 171 lesc->sc_r1 = (struct lereg1 *)(lestd[1] + (int)addr); 172 sc->sc_mem = (void *)(lestd[2] + (int)addr); 173 sc->sc_conf3 = LE_C3_BSWP; 174 sc->sc_addr = 0; 175 sc->sc_memsize = 16384; 176 177 /* 178 * Read the ethernet address off the board, one nibble at a time. 179 */ 180 cp = (char *)(lestd[3] + (int)addr); 181 for (i = 0; i < sizeof(sc->sc_enaddr); i++) { 182 sc->sc_enaddr[i] = (*++cp & 0xF) << 4; 183 cp++; 184 sc->sc_enaddr[i] |= *++cp & 0xF; 185 cp++; 186 } 187 188 sc->sc_copytodesc = am7990_copytobuf_contig; 189 sc->sc_copyfromdesc = am7990_copyfrombuf_contig; 190 sc->sc_copytobuf = am7990_copytobuf_contig; 191 sc->sc_copyfrombuf = am7990_copyfrombuf_contig; 192 sc->sc_zerobuf = am7990_zerobuf_contig; 193 194 sc->sc_rdcsr = lerdcsr; 195 sc->sc_wrcsr = lewrcsr; 196 sc->sc_hwinit = NULL; 197 198 am7990_config(sc); 199 200 /* Establish the interrupt handler. */ 201 (void) intr_establish(leintr, sc, ipl, IPL_NET); 202 ler0->ler0_status = LE_IE; 203 } 204 205 int 206 leintr(arg) 207 void *arg; 208 { 209 struct am7990_softc *sc = arg; 210 u_int16_t isr; 211 212 #ifdef USELEDS 213 isr = lerdcsr(sc, LE_CSR0); 214 215 if ((isr & LE_C0_INTR) == 0) 216 return (0); 217 218 if (isr & LE_C0_RINT) 219 if (inledcontrol == 0) 220 ledcontrol(0, 0, LED_LANRCV); 221 222 if (isr & LE_C0_TINT) 223 if (inledcontrol == 0) 224 ledcontrol(0, 0, LED_LANXMT); 225 #endif /* USELEDS */ 226 227 return (am7990_intr(sc)); 228 } 229
Indexes created Thu Sep 25 16:09:42 GMT 2025