if_le.c revision 1.3.6.2
1 /* $NetBSD: if_le.c,v 1.3.6.2 1997/03/06 13:26:28 is Exp $ */ 2 3 #define LEDEBUG 1 /* debug-level: 0 or 1 */ 4 /* #define LE_CHIP_IS_POKEY /* does VS2000 need this ??? */ 5 6 /*- 7 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 8 * Copyright (c) 1992, 1993 9 * The Regents of the University of California. All rights reserved. 10 * 11 * This code is derived from software contributed to Berkeley by 12 * Ralph Campbell and Rick Macklem. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgement: 24 * This product includes software developed by the University of 25 * California, Berkeley and its contributors. 26 * 4. Neither the name of the University nor the names of its contributors 27 * may be used to endorse or promote products derived from this software 28 * without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 40 * SUCH DAMAGE. 41 * 42 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 43 */ 44 45 #include "bpfilter.h" 46 47 #include <sys/param.h> 48 #include <sys/syslog.h> 49 #include <sys/socket.h> 50 #include <sys/device.h> 51 52 #include <net/if.h> 53 #include <net/if_ether.h> 54 55 #if INET 56 #include <netinet/in.h> 57 #include <netinet/if_ether.h> 58 #endif 59 60 /* 61 * This would be nice, but it's not yet there... 62 * 63 * #include <machine/autoconf.h> 64 */ 65 66 #include <machine/pte.h> 67 #include <machine/cpu.h> 68 #include <machine/mtpr.h> 69 #include <machine/uvax.h> 70 #include <machine/ka410.h> 71 #include <machine/vsbus.h> 72 73 #include <dev/ic/am7990reg.h> 74 #define LE_NEED_BUF_CONTIG 75 #include <dev/ic/am7990var.h> 76 77 #include <dev/tc/if_levar.h> 78 79 #define xdebug(x) 80 81 #ifdef LE_CHIP_IS_POKEY 82 /* 83 * access LANCE registers and double-check their contents 84 */ 85 #define wbflush() /* do nothing */ 86 void lewritereg(); 87 #define LERDWR(cntl, src, dst) { (dst) = (src); wbflush(); } 88 #define LEWREG(src, dst) lewritereg(&(dst), (src)) 89 #endif 90 91 #define LE_IOSIZE 64*1024 /* 64K of real-mem are reserved and already */ 92 extern void *le_iomem; /* mapped into virt-mem by cpu_steal_pages */ 93 extern u_long le_ioaddr; /* le_iomem is virt, le_ioaddr is phys */ 94 95 #define LE_SOFTC(unit) le_cd.cd_devs[unit] 96 #define LE_DELAY(x) DELAY(x) 97 98 int lematch __P((struct device *, void *, void *)); 99 void leattach __P((struct device *, struct device *, void *)); 100 101 int leintr __P((void *sc)); 102 103 struct cfattach le_ca = { 104 sizeof(struct le_softc), lematch, leattach 105 }; 106 107 hide void lewrcsr __P ((struct am7990_softc *, u_int16_t, u_int16_t)); 108 hide u_int16_t lerdcsr __P ((struct am7990_softc *, u_int16_t)); 109 110 hide void 111 lewrcsr(sc, port, val) 112 struct am7990_softc *sc; 113 u_int16_t port, val; 114 { 115 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 116 117 #ifdef LE_CHIP_IS_POKEY 118 LEWREG(port, ler1->ler1_rap); 119 LERDWR(port, val, ler1->ler1_rdp); 120 #else 121 ler1->ler1_rap = port; 122 ler1->ler1_rdp = val; 123 #endif 124 } 125 126 hide u_int16_t 127 lerdcsr(sc, port) 128 struct am7990_softc *sc; 129 u_int16_t port; 130 { 131 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 132 u_int16_t val; 133 134 #ifdef LE_CHIP_IS_POKEY 135 LEWREG(port, ler1->ler1_rap); 136 LERDWR(0, ler1->ler1_rdp, val); 137 #else 138 ler1->ler1_rap = port; 139 val = ler1->ler1_rdp; 140 #endif 141 return (val); 142 } 143 144 integrate void 145 lehwinit(sc) 146 struct am7990_softc *sc; 147 { 148 } 149 150 int 151 lematch(parent, match, aux) 152 struct device *parent; 153 void *match, *aux; 154 { 155 struct cfdata *cf = match; 156 struct confargs *ca = aux; 157 158 /* 159 * There could/should be more checks, but for now... 160 */ 161 if (strcmp(ca->ca_name, "le") && 162 strcmp(ca->ca_name, "am7990") && 163 strcmp(ca->ca_name, "AM7990")) 164 return (0); 165 166 return (1); 167 } 168 169 /* 170 * 171 */ 172 void 173 leattach(parent, self, aux) 174 struct device *parent, *self; 175 void *aux; 176 { 177 register struct le_softc *sc = (void *)self; 178 struct confargs *ca = aux; 179 u_char *cp; /* pointer to MAC address */ 180 int i; 181 182 sc->sc_r1 = (void*)uvax_phys2virt(ca->ca_ioaddr); 183 184 sc->sc_am7990.sc_conf3 = 0; 185 sc->sc_am7990.sc_mem = le_iomem; 186 sc->sc_am7990.sc_addr = le_ioaddr; 187 sc->sc_am7990.sc_memsize = LE_IOSIZE; 188 sc->sc_am7990.sc_wrcsr = lewrcsr; 189 sc->sc_am7990.sc_rdcsr = lerdcsr; 190 sc->sc_am7990.sc_hwinit = lehwinit; 191 sc->sc_am7990.sc_nocarrier = NULL; 192 193 xdebug(("leattach: mem=%x, addr=%x, size=%x (%d)\n", 194 sc->sc_am7990.sc_mem, sc->sc_am7990.sc_addr, 195 sc->sc_am7990.sc_memsize, sc->sc_am7990.sc_memsize)); 196 197 sc->sc_am7990.sc_copytodesc = am7990_copytobuf_contig; 198 sc->sc_am7990.sc_copyfromdesc = am7990_copyfrombuf_contig; 199 sc->sc_am7990.sc_copytobuf = am7990_copytobuf_contig; 200 sc->sc_am7990.sc_copyfrombuf = am7990_copyfrombuf_contig; 201 sc->sc_am7990.sc_zerobuf = am7990_zerobuf_contig; 202 203 /* 204 * Get the ethernet address out of rom 205 */ 206 for (i = 0; i < sizeof(sc->sc_am7990.sc_enaddr); i++) { 207 int *eaddr = (void*)uvax_phys2virt(ca->ca_enaddr); 208 sc->sc_am7990.sc_enaddr[i] = (u_char)eaddr[i]; 209 } 210 211 bcopy(self->dv_xname, sc->sc_am7990.sc_ethercom.ec_if.if_xname, 212 IFNAMSIZ); 213 am7990_config(&sc->sc_am7990); 214 215 #ifdef LEDEBUG 216 sc->sc_am7990.sc_debug = LEDEBUG; 217 #endif 218 219 vsbus_intr_register(ca, am7990_intr, &sc->sc_am7990); 220 vsbus_intr_enable(ca); 221 } 222 223 #ifdef LE_CHIP_IS_POKEY 224 /* 225 * Write a lance register port, reading it back to ensure success. This seems 226 * to be necessary during initialization, since the chip appears to be a bit 227 * pokey sometimes. 228 */ 229 void 230 lewritereg(regptr, val) 231 register volatile u_short *regptr; 232 register u_short val; 233 { 234 register int i = 0; 235 236 while (*regptr != val) { 237 *regptr = val; 238 wbflush(); 239 if (++i > 10000) { 240 printf("le: Reg did not settle (to x%x): x%x\n", val, 241 *regptr); 242 return; 243 } 244 DELAY(100); 245 } 246 } 247 #endif 248
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