if_le.c revision 1.35
1 /* $NetBSD: if_le.c,v 1.35 2009/10/26 19:16:58 cegger 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /*- 34 * Copyright (c) 1992, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * This code is derived from software contributed to Berkeley by 38 * Ralph Campbell and Rick Macklem. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 65 */ 66 67 #include <sys/cdefs.h> 68 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.35 2009/10/26 19:16:58 cegger Exp $"); 69 70 #include "opt_inet.h" 71 #include "bpfilter.h" 72 73 #include <sys/param.h> 74 #include <sys/syslog.h> 75 #include <sys/socket.h> 76 #include <sys/device.h> 77 #include <sys/reboot.h> 78 79 #include <uvm/uvm_extern.h> 80 81 #include <net/if.h> 82 #include <net/if_ether.h> 83 #include <net/if_media.h> 84 85 #ifdef INET 86 #include <netinet/in.h> 87 #include <netinet/if_inarp.h> 88 #endif 89 90 #include <machine/cpu.h> 91 #include <machine/nexus.h> 92 #include <machine/scb.h> 93 #include <machine/mainbus.h> 94 95 #include <dev/ic/lancereg.h> 96 #include <dev/ic/lancevar.h> 97 #include <dev/ic/am7990reg.h> 98 #include <dev/ic/am7990var.h> 99 100 #include "ioconf.h" 101 102 #define LE_VEC 0xd4 /* Interrupt vector on 3300/3400 */ 103 104 #define LE_CSR 0x20084400 105 #define LE_ROM 0x20084200 106 #define LE_RAM 0x20120000 107 108 struct le_softc { 109 struct am7990_softc sc_am7990; /* Must be first */ 110 struct evcnt sc_intrcnt; 111 volatile uint16_t *sc_rap; 112 volatile uint16_t *sc_rdp; 113 }; 114 115 static int le_mainbus_match(device_t, cfdata_t, void *); 116 static void le_mainbus_attach(device_t, device_t, void *); 117 static void lewrcsr(struct lance_softc *, uint16_t, uint16_t); 118 static uint16_t lerdcsr(struct lance_softc *, uint16_t); 119 static void lance_copytobuf_gap2(struct lance_softc *, void *, int, int); 120 static void lance_copyfrombuf_gap2(struct lance_softc *, void *, int, int); 121 static void lance_zerobuf_gap2(struct lance_softc *, int, int); 122 123 CFATTACH_DECL_NEW(le_mainbus, sizeof(struct le_softc), 124 le_mainbus_match, le_mainbus_attach, NULL, NULL); 125 126 void 127 lewrcsr(struct lance_softc *ls, uint16_t port, uint16_t val) 128 { 129 struct le_softc * const sc = (void *)ls; 130 131 *sc->sc_rap = port; 132 *sc->sc_rdp = val; 133 } 134 135 uint16_t 136 lerdcsr(struct lance_softc *ls, uint16_t port) 137 { 138 struct le_softc * const sc = (void *)ls; 139 140 *sc->sc_rap = port; 141 return *sc->sc_rdp; 142 } 143 144 int 145 le_mainbus_match(device_t parent, cfdata_t cf, void *aux) 146 { 147 struct mainbus_attach_args * const ma = aux; 148 int found; 149 vaddr_t va; 150 151 if (strcmp("lance", ma->ma_type)) 152 return 0; 153 154 va = vax_map_physmem(LE_CSR, 1); 155 found = (badaddr((void *)va, 2) == 0); 156 vax_unmap_physmem(va, 1); 157 158 return found; 159 } 160 161 void 162 le_mainbus_attach(device_t parent, device_t self, void *aux) 163 { 164 struct le_softc * const sc = device_private(self); 165 int *lance_addr; 166 int i, vec, br; 167 168 sc->sc_am7990.lsc.sc_dev = self; 169 sc->sc_rdp = (uint16_t *)vax_map_physmem(LE_CSR, 1); 170 sc->sc_rap = sc->sc_rdp + 2; 171 172 /* 173 * Set interrupt vector, by forcing an interrupt. 174 */ 175 scb_vecref(0, 0); /* Clear vector ref */ 176 *sc->sc_rap = LE_CSR0; 177 *sc->sc_rdp = LE_C0_STOP; 178 DELAY(100); 179 *sc->sc_rdp = LE_C0_INIT|LE_C0_INEA; 180 DELAY(100000); 181 i = scb_vecref(&vec, &br); 182 if (i == 0 || vec == 0) 183 return; 184 185 scb_vecalloc(vec, (void (*)(void *))am7990_intr, sc, 186 SCB_ISTACK, &sc->sc_intrcnt); 187 evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 188 device_xname(self), "intr"); 189 190 aprint_normal(": vec %o ipl %x\n%s", vec, br, device_xname(self)); 191 /* 192 * MD functions. 193 */ 194 sc->sc_am7990.lsc.sc_rdcsr = lerdcsr; 195 sc->sc_am7990.lsc.sc_wrcsr = lewrcsr; 196 sc->sc_am7990.lsc.sc_nocarrier = NULL; 197 198 sc->sc_am7990.lsc.sc_mem = 199 (void *)uvm_km_alloc(kernel_map, (128 * 1024), 0, UVM_KMF_VAONLY); 200 if (sc->sc_am7990.lsc.sc_mem == 0) 201 return; 202 203 ioaccess((vaddr_t)sc->sc_am7990.lsc.sc_mem, LE_RAM, 204 (128 * 1024) >> VAX_PGSHIFT); 205 206 207 sc->sc_am7990.lsc.sc_addr = 0; 208 sc->sc_am7990.lsc.sc_memsize = (64 * 1024); 209 210 sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_gap2; 211 sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_gap2; 212 sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_gap2; 213 sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_gap2; 214 sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_gap2; 215 216 /* 217 * Get the ethernet address out of rom 218 */ 219 lance_addr = (int *)vax_map_physmem(LE_ROM, 1); 220 for (i = 0; i < 6; i++) 221 sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i]; 222 vax_unmap_physmem((vaddr_t)lance_addr, 1); 223 224 memcpy(sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname, device_xname(self), 225 IFNAMSIZ); 226 am7990_config(&sc->sc_am7990); 227 } 228 229 /* 230 * gap2: two bytes of data followed by two bytes of pad. 231 * 232 * Buffers must be 4-byte aligned. The code doesn't worry about 233 * doing an extra byte. 234 */ 235 236 void 237 lance_copytobuf_gap2(struct lance_softc *sc, void *fromv, int boff, int len) 238 { 239 volatile void *buf = sc->sc_mem; 240 char *from = fromv; 241 volatile uint16_t *bptr; 242 243 if (boff & 0x1) { 244 /* handle unaligned first byte */ 245 bptr = ((volatile uint16_t *)buf) + (boff - 1); 246 *bptr = (*from++ << 8) | (*bptr & 0xff); 247 bptr += 2; 248 len--; 249 } else 250 bptr = ((volatile uint16_t *)buf) + boff; 251 while (len > 1) { 252 *bptr = (from[1] << 8) | (from[0] & 0xff); 253 bptr += 2; 254 from += 2; 255 len -= 2; 256 } 257 if (len == 1) 258 *bptr = (uint16_t)*from; 259 } 260 261 void 262 lance_copyfrombuf_gap2(struct lance_softc *sc, void *tov, int boff, int len) 263 { 264 volatile void *buf = sc->sc_mem; 265 char *to = tov; 266 volatile uint16_t *bptr; 267 uint16_t tmp; 268 269 if (boff & 0x1) { 270 /* handle unaligned first byte */ 271 bptr = ((volatile uint16_t *)buf) + (boff - 1); 272 *to++ = (*bptr >> 8) & 0xff; 273 bptr += 2; 274 len--; 275 } else 276 bptr = ((volatile uint16_t *)buf) + boff; 277 while (len > 1) { 278 tmp = *bptr; 279 *to++ = tmp & 0xff; 280 *to++ = (tmp >> 8) & 0xff; 281 bptr += 2; 282 len -= 2; 283 } 284 if (len == 1) 285 *to = *bptr & 0xff; 286 } 287 288 void 289 lance_zerobuf_gap2(struct lance_softc *sc, int boff, int len) 290 { 291 volatile void *buf = sc->sc_mem; 292 volatile uint16_t *bptr; 293 294 if ((unsigned int)boff & 0x1) { 295 bptr = ((volatile uint16_t *)buf) + (boff - 1); 296 *bptr &= 0xff; 297 bptr += 2; 298 len--; 299 } else 300 bptr = ((volatile uint16_t *)buf) + boff; 301 while (len > 0) { 302 *bptr = 0; 303 bptr += 2; 304 len -= 2; 305 } 306 } 307
Indexes created Wed Sep 24 05:09:52 GMT 2025