if_le_lebuffer.c revision 1.2
1 /* $NetBSD: if_le_lebuffer.c,v 1.2 1998/08/15 10:51:20 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 9 * Simulation Facility, NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /*- 41 * Copyright (c) 1996 42 * The President and Fellows of Harvard College. All rights reserved. 43 * Copyright (c) 1992, 1993 44 * The Regents of the University of California. All rights reserved. 45 * 46 * This code is derived from software contributed to Berkeley by 47 * Ralph Campbell and Rick Macklem. 48 * 49 * Redistribution and use in source and binary forms, with or without 50 * modification, are permitted provided that the following conditions 51 * are met: 52 * 1. Redistributions of source code must retain the above copyright 53 * notice, this list of conditions and the following disclaimer. 54 * 2. Redistributions in binary form must reproduce the above copyright 55 * notice, this list of conditions and the following disclaimer in the 56 * documentation and/or other materials provided with the distribution. 57 * 3. All advertising materials mentioning features or use of this software 58 * must display the following acknowledgement: 59 * This product includes software developed by Aaron Brown and 60 * Harvard University. 61 * This product includes software developed by the University of 62 * California, Berkeley and its contributors. 63 * 4. Neither the name of the University nor the names of its contributors 64 * may be used to endorse or promote products derived from this software 65 * without specific prior written permission. 66 * 67 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 68 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 69 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 70 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 71 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 72 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 73 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 74 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 75 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 76 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 77 * SUCH DAMAGE. 78 * 79 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 80 */ 81 82 #include "opt_inet.h" 83 #include "bpfilter.h" 84 85 #include <sys/param.h> 86 #include <sys/systm.h> 87 #include <sys/mbuf.h> 88 #include <sys/syslog.h> 89 #include <sys/socket.h> 90 #include <sys/device.h> 91 #include <sys/malloc.h> 92 93 #include <net/if.h> 94 #include <net/if_ether.h> 95 #include <net/if_media.h> 96 97 #ifdef INET 98 #include <netinet/in.h> 99 #include <netinet/if_inarp.h> 100 #endif 101 102 #include <machine/autoconf.h> 103 #include <machine/cpu.h> 104 105 #include <dev/sbus/sbusvar.h> 106 #include <dev/sbus/lebuffervar.h> 107 108 #include <dev/ic/lancereg.h> 109 #include <dev/ic/lancevar.h> 110 #include <dev/ic/am7990reg.h> 111 #include <dev/ic/am7990var.h> 112 113 /* 114 * LANCE registers. 115 */ 116 struct lereg1 { 117 volatile u_int16_t ler1_rdp; /* data port */ 118 volatile u_int16_t ler1_rap; /* register select port */ 119 }; 120 121 struct le_softc { 122 struct am7990_softc sc_am7990; /* glue to MI code */ 123 struct sbusdev sc_sd; /* sbus device */ 124 bus_space_tag_t sc_bustag; 125 bus_dma_tag_t sc_dmatag; 126 struct lereg1 *sc_r1; /* LANCE registers */ 127 }; 128 129 130 int lematch_lebuffer __P((struct device *, struct cfdata *, void *)); 131 void leattach_lebuffer __P((struct device *, struct device *, void *)); 132 133 /* 134 * Media types supported. 135 */ 136 static int lemedia[] = { 137 IFM_ETHER|IFM_10_T, 138 }; 139 #define NLEMEDIA (sizeof(lemedia) / sizeof(lemedia[0])) 140 141 struct cfattach le_lebuffer_ca = { 142 sizeof(struct le_softc), lematch_lebuffer, leattach_lebuffer 143 }; 144 145 extern struct cfdriver le_cd; 146 147 #if defined(_KERNEL) && !defined(_LKM) 148 #include "opt_ddb.h" 149 #endif 150 151 #ifdef DDB 152 #define integrate 153 #define hide 154 #else 155 #define integrate static __inline 156 #define hide static 157 #endif 158 159 static void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 160 static u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t)); 161 162 static void 163 lewrcsr(sc, port, val) 164 struct lance_softc *sc; 165 u_int16_t port, val; 166 { 167 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 168 169 ler1->ler1_rap = port; 170 ler1->ler1_rdp = val; 171 172 #if defined(SUN4M) 173 /* 174 * We need to flush the Sbus->Mbus write buffers. This can most 175 * easily be accomplished by reading back the register that we 176 * just wrote (thanks to Chris Torek for this solution). 177 */ 178 if (CPU_ISSUN4M) { 179 volatile u_int16_t discard; 180 discard = ler1->ler1_rdp; 181 } 182 #endif 183 } 184 185 static u_int16_t 186 lerdcsr(sc, port) 187 struct lance_softc *sc; 188 u_int16_t port; 189 { 190 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; 191 u_int16_t val; 192 193 ler1->ler1_rap = port; 194 val = ler1->ler1_rdp; 195 return (val); 196 } 197 198 int 199 lematch_lebuffer(parent, cf, aux) 200 struct device *parent; 201 struct cfdata *cf; 202 void *aux; 203 { 204 struct sbus_attach_args *sa = aux; 205 206 return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0); 207 } 208 209 210 #define SAME_LANCE(bp, sa) \ 211 ((bp->val[0] == sa->sa_slot && bp->val[1] == sa->sa_offset) || \ 212 (bp->val[0] == -1 && bp->val[1] == sc->sc_dev.dv_unit)) 213 214 215 void 216 leattach_lebuffer(parent, self, aux) 217 struct device *parent, *self; 218 void *aux; 219 { 220 struct sbus_attach_args *sa = aux; 221 struct le_softc *lesc = (struct le_softc *)self; 222 struct lance_softc *sc = &lesc->sc_am7990.lsc; 223 struct lebuf_softc *lebuf = (struct lebuf_softc *)parent; 224 bus_space_handle_t bh; 225 /* XXX the following declarations should be elsewhere */ 226 extern void myetheraddr __P((u_char *)); 227 228 lesc->sc_bustag = sa->sa_bustag; 229 lesc->sc_dmatag = sa->sa_dmatag; 230 231 if (bus_space_map2(sa->sa_bustag, 232 sa->sa_slot, 233 sa->sa_offset, 234 sizeof(struct lereg1), 235 BUS_SPACE_MAP_LINEAR, 236 0, &bh)) { 237 printf("%s @ lebuffer: cannot map registers\n", self->dv_xname); 238 return; 239 } 240 lesc->sc_r1 = (struct lereg1 *)bh; 241 242 sc->sc_mem = lebuf->sc_buffer; 243 sc->sc_memsize = lebuf->sc_bufsiz; 244 sc->sc_addr = 0; /* Lance view is offset by buffer location */ 245 lebuf->attached = 1; 246 247 /* That old black magic... */ 248 sc->sc_conf3 = getpropint(sa->sa_node, "busmaster-regval", 249 LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON); 250 251 /* Assume SBus is grandparent */ 252 lesc->sc_sd.sd_reset = (void *)lance_reset; 253 sbus_establish(&lesc->sc_sd, parent); 254 255 if (sa->sa_bp != NULL && strcmp(sa->sa_bp->name, le_cd.cd_name) == 0 && 256 SAME_LANCE(sa->sa_bp, sa)) 257 sa->sa_bp->dev = &sc->sc_dev; 258 259 sc->sc_supmedia = lemedia; 260 sc->sc_nsupmedia = NLEMEDIA; 261 sc->sc_defaultmedia = lemedia[0]; 262 263 myetheraddr(sc->sc_enaddr); 264 265 sc->sc_copytodesc = lance_copytobuf_contig; 266 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 267 sc->sc_copytobuf = lance_copytobuf_contig; 268 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 269 sc->sc_zerobuf = lance_zerobuf_contig; 270 271 sc->sc_rdcsr = lerdcsr; 272 sc->sc_wrcsr = lewrcsr; 273 274 am7990_config(&lesc->sc_am7990); 275 276 (void)bus_intr_establish(lesc->sc_bustag, sa->sa_pri, 0, 277 am7990_intr, sc); 278 } 279
Indexes created Thu Sep 25 08:09:54 GMT 2025