if_le.c revision 1.9
1 /* $NetBSD: if_le.c,v 1.9 1998/01/12 20:52:34 thorpej 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 "bpfilter.h" 45 46 #include <sys/param.h> 47 #include <sys/syslog.h> 48 #include <sys/socket.h> 49 #include <sys/device.h> 50 #include <sys/reboot.h> 51 52 #include <net/if.h> 53 #include <net/if_ether.h> 54 #include <net/if_media.h> 55 56 #if INET 57 #include <netinet/in.h> 58 #include <netinet/if_inarp.h> 59 #endif 60 61 /* 62 * This would be nice, but it's not yet there... 63 * 64 * #include <machine/autoconf.h> 65 */ 66 67 #include <machine/pte.h> 68 #include <machine/cpu.h> 69 #include <machine/mtpr.h> 70 #include <machine/uvax.h> 71 #include <machine/ka410.h> 72 #include <machine/vsbus.h> 73 #include <machine/rpb.h> 74 75 #include <dev/ic/am7990reg.h> 76 #define LE_NEED_BUF_CONTIG 77 #include <dev/ic/am7990var.h> 78 79 #include <dev/tc/if_levar.h> 80 81 #define xdebug(x) 82 83 #ifdef LE_CHIP_IS_POKEY 84 /* 85 * access LANCE registers and double-check their contents 86 */ 87 #define wbflush() /* do nothing */ 88 void lewritereg(); 89 #define LERDWR(cntl, src, dst) { (dst) = (src); wbflush(); } 90 #define LEWREG(src, dst) lewritereg(&(dst), (src)) 91 #endif 92 93 #define LE_IOSIZE 64*1024 /* 64K of real-mem are reserved and already */ 94 extern void *le_iomem; /* mapped into virt-mem by cpu_steal_pages */ 95 extern u_long le_ioaddr; /* le_iomem is virt, le_ioaddr is phys */ 96 97 #define LE_SOFTC(unit) le_cd.cd_devs[unit] 98 #define LE_DELAY(x) DELAY(x) 99 100 int lematch __P((struct device *, void *, void *)); 101 void leattach __P((struct device *, struct device *, void *)); 102 103 int leintr __P((void *sc)); 104 105 struct cfattach le_ca = { 106 sizeof(struct le_softc), lematch, leattach 107 }; 108 109 extern struct cfdriver le_cd; 110 111 hide void lewrcsr __P ((struct am7990_softc *, u_int16_t, u_int16_t)); 112 hide u_int16_t lerdcsr __P ((struct am7990_softc *, u_int16_t)); 113 114 hide void 115 lewrcsr(sc, port, val) 116 struct am7990_softc *sc; 117 u_int16_t port, val; 118 { 119 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 120 121 #ifdef LE_CHIP_IS_POKEY 122 LEWREG(port, ler1->ler1_rap); 123 LERDWR(port, val, ler1->ler1_rdp); 124 #else 125 ler1->ler1_rap = port; 126 ler1->ler1_rdp = val; 127 #endif 128 } 129 130 hide u_int16_t 131 lerdcsr(sc, port) 132 struct am7990_softc *sc; 133 u_int16_t port; 134 { 135 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 136 u_int16_t val; 137 138 #ifdef LE_CHIP_IS_POKEY 139 LEWREG(port, ler1->ler1_rap); 140 LERDWR(0, ler1->ler1_rdp, val); 141 #else 142 ler1->ler1_rap = port; 143 val = ler1->ler1_rdp; 144 #endif 145 return (val); 146 } 147 148 integrate void 149 lehwinit(sc) 150 struct am7990_softc *sc; 151 { 152 } 153 154 int 155 lematch(parent, match, aux) 156 struct device *parent; 157 void *match, *aux; 158 { 159 struct cfdata *cf = match; 160 struct confargs *ca = aux; 161 162 /* 163 * There could/should be more checks, but for now... 164 */ 165 if (strcmp(ca->ca_name, "le") && 166 strcmp(ca->ca_name, "am7990") && 167 strcmp(ca->ca_name, "AM7990")) 168 return (0); 169 170 return (1); 171 } 172 173 /* 174 * 175 */ 176 void 177 leattach(parent, self, aux) 178 struct device *parent, *self; 179 void *aux; 180 { 181 register struct le_softc *sc = (void *)self; 182 struct confargs *ca = aux; 183 u_char *cp; /* pointer to MAC address */ 184 int i; 185 186 sc->sc_r1 = (void*)uvax_phys2virt(ca->ca_ioaddr); 187 188 sc->sc_am7990.sc_conf3 = 0; 189 sc->sc_am7990.sc_mem = le_iomem; 190 sc->sc_am7990.sc_addr = le_ioaddr; 191 sc->sc_am7990.sc_memsize = LE_IOSIZE; 192 sc->sc_am7990.sc_wrcsr = lewrcsr; 193 sc->sc_am7990.sc_rdcsr = lerdcsr; 194 sc->sc_am7990.sc_hwinit = lehwinit; 195 sc->sc_am7990.sc_nocarrier = NULL; 196 197 xdebug(("leattach: mem=%x, addr=%x, size=%x (%d)\n", 198 sc->sc_am7990.sc_mem, sc->sc_am7990.sc_addr, 199 sc->sc_am7990.sc_memsize, sc->sc_am7990.sc_memsize)); 200 201 sc->sc_am7990.sc_copytodesc = am7990_copytobuf_contig; 202 sc->sc_am7990.sc_copyfromdesc = am7990_copyfrombuf_contig; 203 sc->sc_am7990.sc_copytobuf = am7990_copytobuf_contig; 204 sc->sc_am7990.sc_copyfrombuf = am7990_copyfrombuf_contig; 205 sc->sc_am7990.sc_zerobuf = am7990_zerobuf_contig; 206 207 /* 208 * Get the ethernet address out of rom 209 */ 210 for (i = 0; i < sizeof(sc->sc_am7990.sc_enaddr); i++) { 211 int *eaddr = (void*)uvax_phys2virt(ca->ca_enaddr); 212 sc->sc_am7990.sc_enaddr[i] = (u_char)eaddr[i]; 213 } 214 215 bcopy(self->dv_xname, sc->sc_am7990.sc_ethercom.ec_if.if_xname, 216 IFNAMSIZ); 217 am7990_config(&sc->sc_am7990); 218 219 #ifdef LEDEBUG 220 sc->sc_am7990.sc_debug = LEDEBUG; 221 #endif 222 223 vsbus_intr_register(ca, am7990_intr, &sc->sc_am7990); 224 vsbus_intr_enable(ca); 225 226 /* 227 * Register this device as boot device if we booted from it. 228 * This will fail if there are more than one le in a machine, 229 * fortunately there may be only one. 230 */ 231 if (B_TYPE(bootdev) == BDEV_LE) 232 booted_from = self; 233 } 234 235 #ifdef LE_CHIP_IS_POKEY 236 /* 237 * Write a lance register port, reading it back to ensure success. This seems 238 * to be necessary during initialization, since the chip appears to be a bit 239 * pokey sometimes. 240 */ 241 void 242 lewritereg(regptr, val) 243 register volatile u_short *regptr; 244 register u_short val; 245 { 246 register int i = 0; 247 248 while (*regptr != val) { 249 *regptr = val; 250 wbflush(); 251 if (++i > 10000) { 252 printf("le: Reg did not settle (to x%x): x%x\n", val, 253 *regptr); 254 return; 255 } 256 DELAY(100); 257 } 258 } 259 #endif 260
Indexes created Wed Sep 24 05:09:52 GMT 2025