if_le.c revision 1.11
1 /* $NetBSD: if_le.c,v 1.11 1998/07/05 00:51:15 jonathan Exp $ */ 2 3 /* #define LE_CHIP_IS_POKEY /* does VS2000 need this ??? */ 4 5 /*- 6 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 7 * Copyright (c) 1992, 1993 8 * The Regents of the University of California. All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * Ralph Campbell and Rick Macklem. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 42 */ 43 44 #include "opt_inet.h" 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 #include <sys/reboot.h> 52 53 #include <net/if.h> 54 #include <net/if_ether.h> 55 #include <net/if_media.h> 56 57 #if INET 58 #include <netinet/in.h> 59 #include <netinet/if_inarp.h> 60 #endif 61 62 /* 63 * This would be nice, but it's not yet there... 64 * 65 * #include <machine/autoconf.h> 66 */ 67 68 #include <machine/pte.h> 69 #include <machine/cpu.h> 70 #include <machine/mtpr.h> 71 #include <machine/uvax.h> 72 #include <machine/ka410.h> 73 #include <machine/vsbus.h> 74 #include <machine/rpb.h> 75 76 #include <dev/ic/am7990reg.h> 77 #define LE_NEED_BUF_CONTIG 78 #include <dev/ic/am7990var.h> 79 80 #include <dev/tc/if_levar.h> 81 82 #define xdebug(x) 83 84 #ifdef LE_CHIP_IS_POKEY 85 /* 86 * access LANCE registers and double-check their contents 87 */ 88 #define wbflush() /* do nothing */ 89 void lewritereg(); 90 #define LERDWR(cntl, src, dst) { (dst) = (src); wbflush(); } 91 #define LEWREG(src, dst) lewritereg(&(dst), (src)) 92 #endif 93 94 #define LE_IOSIZE 64*1024 /* 64K of real-mem are reserved and already */ 95 extern void *le_iomem; /* mapped into virt-mem by cpu_steal_pages */ 96 extern u_long le_ioaddr; /* le_iomem is virt, le_ioaddr is phys */ 97 98 #define LE_SOFTC(unit) le_cd.cd_devs[unit] 99 #define LE_DELAY(x) DELAY(x) 100 101 int lematch __P((struct device *, struct cfdata *, void *)); 102 void leattach __P((struct device *, struct device *, void *)); 103 104 int leintr __P((void *sc)); 105 106 struct cfattach le_ca = { 107 sizeof(struct le_softc), lematch, leattach 108 }; 109 110 extern struct cfdriver le_cd; 111 112 hide void lewrcsr __P ((struct am7990_softc *, u_int16_t, u_int16_t)); 113 hide u_int16_t lerdcsr __P ((struct am7990_softc *, u_int16_t)); 114 115 hide void 116 lewrcsr(sc, port, val) 117 struct am7990_softc *sc; 118 u_int16_t port, val; 119 { 120 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 121 122 #ifdef LE_CHIP_IS_POKEY 123 LEWREG(port, ler1->ler1_rap); 124 LERDWR(port, val, ler1->ler1_rdp); 125 #else 126 ler1->ler1_rap = port; 127 ler1->ler1_rdp = val; 128 #endif 129 } 130 131 hide u_int16_t 132 lerdcsr(sc, port) 133 struct am7990_softc *sc; 134 u_int16_t port; 135 { 136 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 137 u_int16_t val; 138 139 #ifdef LE_CHIP_IS_POKEY 140 LEWREG(port, ler1->ler1_rap); 141 LERDWR(0, ler1->ler1_rdp, val); 142 #else 143 ler1->ler1_rap = port; 144 val = ler1->ler1_rdp; 145 #endif 146 return (val); 147 } 148 149 integrate void 150 lehwinit(sc) 151 struct am7990_softc *sc; 152 { 153 } 154 155 int 156 lematch(parent, cf, aux) 157 struct device *parent; 158 struct cfdata *cf; 159 void *aux; 160 { 161 struct confargs *ca = aux; 162 163 /* 164 * There could/should be more checks, but for now... 165 */ 166 if (strcmp(ca->ca_name, "le") && 167 strcmp(ca->ca_name, "am7990") && 168 strcmp(ca->ca_name, "AM7990")) 169 return (0); 170 171 return (1); 172 } 173 174 /* 175 * 176 */ 177 void 178 leattach(parent, self, aux) 179 struct device *parent, *self; 180 void *aux; 181 { 182 register struct le_softc *sc = (void *)self; 183 struct confargs *ca = aux; 184 u_char *cp; /* pointer to MAC address */ 185 int i; 186 187 sc->sc_r1 = (void*)uvax_phys2virt(ca->ca_ioaddr); 188 189 sc->sc_am7990.sc_conf3 = 0; 190 sc->sc_am7990.sc_mem = le_iomem; 191 sc->sc_am7990.sc_addr = le_ioaddr; 192 sc->sc_am7990.sc_memsize = LE_IOSIZE; 193 sc->sc_am7990.sc_wrcsr = lewrcsr; 194 sc->sc_am7990.sc_rdcsr = lerdcsr; 195 sc->sc_am7990.sc_hwinit = lehwinit; 196 sc->sc_am7990.sc_nocarrier = NULL; 197 198 xdebug(("leattach: mem=%x, addr=%x, size=%x (%d)\n", 199 sc->sc_am7990.sc_mem, sc->sc_am7990.sc_addr, 200 sc->sc_am7990.sc_memsize, sc->sc_am7990.sc_memsize)); 201 202 sc->sc_am7990.sc_copytodesc = am7990_copytobuf_contig; 203 sc->sc_am7990.sc_copyfromdesc = am7990_copyfrombuf_contig; 204 sc->sc_am7990.sc_copytobuf = am7990_copytobuf_contig; 205 sc->sc_am7990.sc_copyfrombuf = am7990_copyfrombuf_contig; 206 sc->sc_am7990.sc_zerobuf = am7990_zerobuf_contig; 207 208 /* 209 * Get the ethernet address out of rom 210 */ 211 for (i = 0; i < sizeof(sc->sc_am7990.sc_enaddr); i++) { 212 int *eaddr = (void*)uvax_phys2virt(ca->ca_enaddr); 213 sc->sc_am7990.sc_enaddr[i] = (u_char)eaddr[i]; 214 } 215 216 bcopy(self->dv_xname, sc->sc_am7990.sc_ethercom.ec_if.if_xname, 217 IFNAMSIZ); 218 am7990_config(&sc->sc_am7990); 219 220 #ifdef LEDEBUG 221 sc->sc_am7990.sc_debug = LEDEBUG; 222 #endif 223 224 vsbus_intr_register(ca, am7990_intr, &sc->sc_am7990); 225 vsbus_intr_enable(ca); 226 227 /* 228 * Register this device as boot device if we booted from it. 229 * This will fail if there are more than one le in a machine, 230 * fortunately there may be only one. 231 */ 232 if (B_TYPE(bootdev) == BDEV_LE) 233 booted_from = self; 234 } 235 236 #ifdef LE_CHIP_IS_POKEY 237 /* 238 * Write a lance register port, reading it back to ensure success. This seems 239 * to be necessary during initialization, since the chip appears to be a bit 240 * pokey sometimes. 241 */ 242 void 243 lewritereg(regptr, val) 244 register volatile u_short *regptr; 245 register u_short val; 246 { 247 register int i = 0; 248 249 while (*regptr != val) { 250 *regptr = val; 251 wbflush(); 252 if (++i > 10000) { 253 printf("le: Reg did not settle (to x%x): x%x\n", val, 254 *regptr); 255 return; 256 } 257 DELAY(100); 258 } 259 } 260 #endif 261
Indexes created Tue Sep 23 02:09:52 GMT 2025