if_le.c revision 1.12
1 /* $NetBSD: if_le.c,v 1.12 1998/07/21 17:36:05 drochner 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/lancereg.h> 77 #include <dev/ic/lancevar.h> 78 #include <dev/ic/am7990reg.h> 79 #define LE_NEED_BUF_CONTIG 80 #include <dev/ic/am7990var.h> 81 82 #include <dev/tc/if_levar.h> 83 84 #define xdebug(x) 85 86 #ifdef LE_CHIP_IS_POKEY 87 /* 88 * access LANCE registers and double-check their contents 89 */ 90 #define wbflush() /* do nothing */ 91 void lewritereg(); 92 #define LERDWR(cntl, src, dst) { (dst) = (src); wbflush(); } 93 #define LEWREG(src, dst) lewritereg(&(dst), (src)) 94 #endif 95 96 #define LE_IOSIZE 64*1024 /* 64K of real-mem are reserved and already */ 97 extern void *le_iomem; /* mapped into virt-mem by cpu_steal_pages */ 98 extern u_long le_ioaddr; /* le_iomem is virt, le_ioaddr is phys */ 99 100 #define LE_SOFTC(unit) le_cd.cd_devs[unit] 101 #define LE_DELAY(x) DELAY(x) 102 103 int lematch __P((struct device *, struct cfdata *, void *)); 104 void leattach __P((struct device *, struct device *, void *)); 105 106 int leintr __P((void *sc)); 107 108 struct cfattach le_ca = { 109 sizeof(struct le_softc), lematch, leattach 110 }; 111 112 extern struct cfdriver le_cd; 113 114 #if defined(_KERNEL) && !defined(_LKM) 115 #include "opt_ddb.h" 116 #endif 117 118 #ifdef DDB 119 #define integrate 120 #define hide 121 #else 122 #define integrate static __inline 123 #define hide static 124 #endif 125 126 hide void lewrcsr __P ((struct lance_softc *, u_int16_t, u_int16_t)); 127 hide u_int16_t lerdcsr __P ((struct lance_softc *, u_int16_t)); 128 129 hide void 130 lewrcsr(sc, port, val) 131 struct lance_softc *sc; 132 u_int16_t port, val; 133 { 134 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 135 136 #ifdef LE_CHIP_IS_POKEY 137 LEWREG(port, ler1->ler1_rap); 138 LERDWR(port, val, ler1->ler1_rdp); 139 #else 140 ler1->ler1_rap = port; 141 ler1->ler1_rdp = val; 142 #endif 143 } 144 145 hide u_int16_t 146 lerdcsr(sc, port) 147 struct lance_softc *sc; 148 u_int16_t port; 149 { 150 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 151 u_int16_t val; 152 153 #ifdef LE_CHIP_IS_POKEY 154 LEWREG(port, ler1->ler1_rap); 155 LERDWR(0, ler1->ler1_rdp, val); 156 #else 157 ler1->ler1_rap = port; 158 val = ler1->ler1_rdp; 159 #endif 160 return (val); 161 } 162 163 integrate void 164 lehwinit(sc) 165 struct lance_softc *sc; 166 { 167 } 168 169 int 170 lematch(parent, cf, aux) 171 struct device *parent; 172 struct cfdata *cf; 173 void *aux; 174 { 175 struct confargs *ca = aux; 176 177 /* 178 * There could/should be more checks, but for now... 179 */ 180 if (strcmp(ca->ca_name, "le") && 181 strcmp(ca->ca_name, "am7990") && 182 strcmp(ca->ca_name, "AM7990")) 183 return (0); 184 185 return (1); 186 } 187 188 /* 189 * 190 */ 191 void 192 leattach(parent, self, aux) 193 struct device *parent, *self; 194 void *aux; 195 { 196 register struct le_softc *sc = (void *)self; 197 struct confargs *ca = aux; 198 u_char *cp; /* pointer to MAC address */ 199 int i; 200 201 sc->sc_r1 = (void*)uvax_phys2virt(ca->ca_ioaddr); 202 203 sc->sc_am7990.lsc.sc_conf3 = 0; 204 sc->sc_am7990.lsc.sc_mem = le_iomem; 205 sc->sc_am7990.lsc.sc_addr = le_ioaddr; 206 sc->sc_am7990.lsc.sc_memsize = LE_IOSIZE; 207 sc->sc_am7990.lsc.sc_wrcsr = lewrcsr; 208 sc->sc_am7990.lsc.sc_rdcsr = lerdcsr; 209 sc->sc_am7990.lsc.sc_hwinit = lehwinit; 210 sc->sc_am7990.lsc.sc_nocarrier = NULL; 211 212 xdebug(("leattach: mem=%x, addr=%x, size=%x (%d)\n", 213 sc->sc_am7990.lsc.sc_mem, sc->sc_am7990.lsc.sc_addr, 214 sc->sc_am7990.lsc.sc_memsize, sc->sc_am7990.lsc.sc_memsize)); 215 216 sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_contig; 217 sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_contig; 218 sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_contig; 219 sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_contig; 220 sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_contig; 221 222 /* 223 * Get the ethernet address out of rom 224 */ 225 for (i = 0; i < sizeof(sc->sc_am7990.lsc.sc_enaddr); i++) { 226 int *eaddr = (void*)uvax_phys2virt(ca->ca_enaddr); 227 sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)eaddr[i]; 228 } 229 230 bcopy(self->dv_xname, sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname, 231 IFNAMSIZ); 232 am7990_config(&sc->sc_am7990); 233 234 #ifdef LEDEBUG 235 sc->sc_am7990.lsc.sc_debug = LEDEBUG; 236 #endif 237 238 vsbus_intr_register(ca, am7990_intr, &sc->sc_am7990); 239 vsbus_intr_enable(ca); 240 241 /* 242 * Register this device as boot device if we booted from it. 243 * This will fail if there are more than one le in a machine, 244 * fortunately there may be only one. 245 */ 246 if (B_TYPE(bootdev) == BDEV_LE) 247 booted_from = self; 248 } 249 250 #ifdef LE_CHIP_IS_POKEY 251 /* 252 * Write a lance register port, reading it back to ensure success. This seems 253 * to be necessary during initialization, since the chip appears to be a bit 254 * pokey sometimes. 255 */ 256 void 257 lewritereg(regptr, val) 258 register volatile u_short *regptr; 259 register u_short val; 260 { 261 register int i = 0; 262 263 while (*regptr != val) { 264 *regptr = val; 265 wbflush(); 266 if (++i > 10000) { 267 printf("le: Reg did not settle (to x%x): x%x\n", val, 268 *regptr); 269 return; 270 } 271 DELAY(100); 272 } 273 } 274 #endif 275
Indexes created Wed Sep 24 02:09:48 GMT 2025