if_le.c revision 1.7
1 /* $NetBSD: if_le.c,v 1.7 1997/03/17 03:17:40 thorpej 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 #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 *, void *, 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 hide void lewrcsr __P ((struct am7990_softc *, u_int16_t, u_int16_t)); 111 hide u_int16_t lerdcsr __P ((struct am7990_softc *, u_int16_t)); 112 113 hide void 114 lewrcsr(sc, port, val) 115 struct am7990_softc *sc; 116 u_int16_t port, val; 117 { 118 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 119 120 #ifdef LE_CHIP_IS_POKEY 121 LEWREG(port, ler1->ler1_rap); 122 LERDWR(port, val, ler1->ler1_rdp); 123 #else 124 ler1->ler1_rap = port; 125 ler1->ler1_rdp = val; 126 #endif 127 } 128 129 hide u_int16_t 130 lerdcsr(sc, port) 131 struct am7990_softc *sc; 132 u_int16_t port; 133 { 134 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 135 u_int16_t val; 136 137 #ifdef LE_CHIP_IS_POKEY 138 LEWREG(port, ler1->ler1_rap); 139 LERDWR(0, ler1->ler1_rdp, val); 140 #else 141 ler1->ler1_rap = port; 142 val = ler1->ler1_rdp; 143 #endif 144 return (val); 145 } 146 147 integrate void 148 lehwinit(sc) 149 struct am7990_softc *sc; 150 { 151 } 152 153 int 154 lematch(parent, match, aux) 155 struct device *parent; 156 void *match, *aux; 157 { 158 struct cfdata *cf = match; 159 struct confargs *ca = aux; 160 161 /* 162 * There could/should be more checks, but for now... 163 */ 164 if (strcmp(ca->ca_name, "le") && 165 strcmp(ca->ca_name, "am7990") && 166 strcmp(ca->ca_name, "AM7990")) 167 return (0); 168 169 return (1); 170 } 171 172 /* 173 * 174 */ 175 void 176 leattach(parent, self, aux) 177 struct device *parent, *self; 178 void *aux; 179 { 180 register struct le_softc *sc = (void *)self; 181 struct confargs *ca = aux; 182 u_char *cp; /* pointer to MAC address */ 183 int i; 184 185 sc->sc_r1 = (void*)uvax_phys2virt(ca->ca_ioaddr); 186 187 sc->sc_am7990.sc_conf3 = 0; 188 sc->sc_am7990.sc_mem = le_iomem; 189 sc->sc_am7990.sc_addr = le_ioaddr; 190 sc->sc_am7990.sc_memsize = LE_IOSIZE; 191 sc->sc_am7990.sc_wrcsr = lewrcsr; 192 sc->sc_am7990.sc_rdcsr = lerdcsr; 193 sc->sc_am7990.sc_hwinit = lehwinit; 194 sc->sc_am7990.sc_nocarrier = NULL; 195 196 xdebug(("leattach: mem=%x, addr=%x, size=%x (%d)\n", 197 sc->sc_am7990.sc_mem, sc->sc_am7990.sc_addr, 198 sc->sc_am7990.sc_memsize, sc->sc_am7990.sc_memsize)); 199 200 sc->sc_am7990.sc_copytodesc = am7990_copytobuf_contig; 201 sc->sc_am7990.sc_copyfromdesc = am7990_copyfrombuf_contig; 202 sc->sc_am7990.sc_copytobuf = am7990_copytobuf_contig; 203 sc->sc_am7990.sc_copyfrombuf = am7990_copyfrombuf_contig; 204 sc->sc_am7990.sc_zerobuf = am7990_zerobuf_contig; 205 206 /* 207 * Get the ethernet address out of rom 208 */ 209 for (i = 0; i < sizeof(sc->sc_am7990.sc_enaddr); i++) { 210 int *eaddr = (void*)uvax_phys2virt(ca->ca_enaddr); 211 sc->sc_am7990.sc_enaddr[i] = (u_char)eaddr[i]; 212 } 213 214 bcopy(self->dv_xname, sc->sc_am7990.sc_ethercom.ec_if.if_xname, 215 IFNAMSIZ); 216 am7990_config(&sc->sc_am7990); 217 218 #ifdef LEDEBUG 219 sc->sc_am7990.sc_debug = LEDEBUG; 220 #endif 221 222 vsbus_intr_register(ca, am7990_intr, &sc->sc_am7990); 223 vsbus_intr_enable(ca); 224 225 /* 226 * Register this device as boot device if we booted from it. 227 * This will fail if there are more than one le in a machine, 228 * fortunately there may be only one. 229 */ 230 if (B_TYPE(bootdev) == BDEV_LE) 231 booted_from = self; 232 } 233 234 #ifdef LE_CHIP_IS_POKEY 235 /* 236 * Write a lance register port, reading it back to ensure success. This seems 237 * to be necessary during initialization, since the chip appears to be a bit 238 * pokey sometimes. 239 */ 240 void 241 lewritereg(regptr, val) 242 register volatile u_short *regptr; 243 register u_short val; 244 { 245 register int i = 0; 246 247 while (*regptr != val) { 248 *regptr = val; 249 wbflush(); 250 if (++i > 10000) { 251 printf("le: Reg did not settle (to x%x): x%x\n", val, 252 *regptr); 253 return; 254 } 255 DELAY(100); 256 } 257 } 258 #endif 259
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