1 /* $NetBSD: if_le.c,v 1.43 1997/05/05 21:05:32 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 #include <dev/ic/am7990reg.h> 65 #include <dev/ic/am7990var.h> 66 67 #include <hp300/dev/dioreg.h> 68 #include <hp300/dev/diovar.h> 69 #include <hp300/dev/diodevs.h> 70 #include <hp300/dev/if_lereg.h> 71 #include <hp300/dev/if_levar.h> 72 73 #include "opt_useleds.h" 74 75 #ifdef USELEDS 76 #include <hp300/hp300/leds.h> 77 #endif 78 79 int lematch __P((struct device *, struct cfdata *, void *)); 80 void leattach __P((struct device *, struct device *, void *)); 81 82 struct cfattach le_ca = { 83 sizeof(struct le_softc), lematch, leattach 84 }; 85 86 int leintr __P((void *)); 87 88 /* offsets for: ID, REGS, MEM, NVRAM */ 89 int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; 90 91 hide void lewrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t)); 92 hide u_int16_t lerdcsr __P((struct am7990_softc *, u_int16_t)); 93 94 hide void 95 lewrcsr(sc, port, val) 96 struct am7990_softc *sc; 97 u_int16_t port, val; 98 { 99 struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0; 100 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 101 102 do { 103 ler1->ler1_rap = port; 104 } while ((ler0->ler0_status & LE_ACK) == 0); 105 do { 106 ler1->ler1_rdp = val; 107 } while ((ler0->ler0_status & LE_ACK) == 0); 108 } 109 110 hide u_int16_t 111 lerdcsr(sc, port) 112 struct am7990_softc *sc; 113 u_int16_t port; 114 { 115 struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0; 116 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 117 u_int16_t val; 118 119 do { 120 ler1->ler1_rap = port; 121 } while ((ler0->ler0_status & LE_ACK) == 0); 122 do { 123 val = ler1->ler1_rdp; 124 } while ((ler0->ler0_status & LE_ACK) == 0); 125 return (val); 126 } 127 128 int 129 lematch(parent, match, aux) 130 struct device *parent; 131 struct cfdata *match; 132 void *aux; 133 { 134 struct dio_attach_args *da = aux; 135 136 if (da->da_id == DIO_DEVICE_ID_LAN) 137 return (1); 138 return (0); 139 } 140 141 /* 142 * Interface exists: make available by filling in network interface 143 * record. System will initialize the interface when it is ready 144 * to accept packets. 145 */ 146 void 147 leattach(parent, self, aux) 148 struct device *parent, *self; 149 void *aux; 150 { 151 struct lereg0 *ler0; 152 struct dio_attach_args *da = aux; 153 struct le_softc *lesc = (struct le_softc *)self; 154 caddr_t addr; 155 struct am7990_softc *sc = &lesc->sc_am7990; 156 char *cp; 157 int i, ipl; 158 159 addr = iomap(dio_scodetopa(da->da_scode), da->da_size); 160 if (addr == 0) { 161 printf("\n%s: can't map LANCE registers\n", 162 sc->sc_dev.dv_xname); 163 return; 164 } 165 166 ler0 = lesc->sc_r0 = (struct lereg0 *)(lestd[0] + (int)addr); 167 ler0->ler0_id = 0xFF; 168 DELAY(100); 169 170 ipl = DIO_IPL(addr); 171 printf(" ipl %d", ipl); 172 173 lesc->sc_r1 = (struct lereg1 *)(lestd[1] + (int)addr); 174 sc->sc_mem = (void *)(lestd[2] + (int)addr); 175 sc->sc_conf3 = LE_C3_BSWP; 176 sc->sc_addr = 0; 177 sc->sc_memsize = 16384; 178 179 /* 180 * Read the ethernet address off the board, one nibble at a time. 181 */ 182 cp = (char *)(lestd[3] + (int)addr); 183 for (i = 0; i < sizeof(sc->sc_enaddr); i++) { 184 sc->sc_enaddr[i] = (*++cp & 0xF) << 4; 185 cp++; 186 sc->sc_enaddr[i] |= *++cp & 0xF; 187 cp++; 188 } 189 190 sc->sc_copytodesc = am7990_copytobuf_contig; 191 sc->sc_copyfromdesc = am7990_copyfrombuf_contig; 192 sc->sc_copytobuf = am7990_copytobuf_contig; 193 sc->sc_copyfrombuf = am7990_copyfrombuf_contig; 194 sc->sc_zerobuf = am7990_zerobuf_contig; 195 196 sc->sc_rdcsr = lerdcsr; 197 sc->sc_wrcsr = lewrcsr; 198 sc->sc_hwinit = NULL; 199 200 am7990_config(sc); 201 202 /* Establish the interrupt handler. */ 203 (void) dio_intr_establish(leintr, sc, ipl, IPL_NET); 204 ler0->ler0_status = LE_IE; 205 } 206 207 int 208 leintr(arg) 209 void *arg; 210 { 211 struct am7990_softc *sc = arg; 212 #ifdef USELEDS 213 u_int16_t isr; 214 215 isr = lerdcsr(sc, LE_CSR0); 216 217 if ((isr & LE_C0_INTR) == 0) 218 return (0); 219 220 if (isr & LE_C0_RINT) 221 ledcontrol(0, 0, LED_LANRCV); 222 223 if (isr & LE_C0_TINT) 224 ledcontrol(0, 0, LED_LANXMT); 225 #endif /* USELEDS */ 226 227 return (am7990_intr(sc)); 228 } 229