1 /* $NetBSD: if_le.c,v 1.37 2010/12/14 23:38:30 matt 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 1.37 2010/12/14 23:38:30 matt Exp $"); 69 70 #include "opt_inet.h" 71 72 #include <sys/param.h> 73 #include <sys/cpu.h> 74 #include <sys/device.h> 75 #include <sys/syslog.h> 76 #include <sys/socket.h> 77 78 #include <uvm/uvm_extern.h> 79 80 #include <net/if.h> 81 #include <net/if_ether.h> 82 #include <net/if_media.h> 83 84 #ifdef INET 85 #include <netinet/in.h> 86 #include <netinet/if_inarp.h> 87 #endif 88 89 #include <machine/nexus.h> 90 #include <machine/scb.h> 91 #include <machine/mainbus.h> 92 93 #include <dev/ic/lancereg.h> 94 #include <dev/ic/lancevar.h> 95 #include <dev/ic/am7990reg.h> 96 #include <dev/ic/am7990var.h> 97 98 #include "ioconf.h" 99 100 #define LE_VEC 0xd4 /* Interrupt vector on 3300/3400 */ 101 102 #define LE_CSR 0x20084400 103 #define LE_ROM 0x20084200 104 #define LE_RAM 0x20120000 105 106 struct le_softc { 107 struct am7990_softc sc_am7990; /* Must be first */ 108 struct evcnt sc_intrcnt; 109 volatile uint16_t *sc_rap; 110 volatile uint16_t *sc_rdp; 111 }; 112 113 static int le_mainbus_match(device_t, cfdata_t, void *); 114 static void le_mainbus_attach(device_t, device_t, void *); 115 static void lewrcsr(struct lance_softc *, uint16_t, uint16_t); 116 static uint16_t lerdcsr(struct lance_softc *, uint16_t); 117 static void lance_copytobuf_gap2(struct lance_softc *, void *, int, int); 118 static void lance_copyfrombuf_gap2(struct lance_softc *, void *, int, int); 119 static void lance_zerobuf_gap2(struct lance_softc *, int, int); 120 121 CFATTACH_DECL_NEW(le_mainbus, sizeof(struct le_softc), 122 le_mainbus_match, le_mainbus_attach, NULL, NULL); 123 124 void 125 lewrcsr(struct lance_softc *ls, uint16_t port, uint16_t val) 126 { 127 struct le_softc * const sc = (void *)ls; 128 129 *sc->sc_rap = port; 130 *sc->sc_rdp = val; 131 } 132 133 uint16_t 134 lerdcsr(struct lance_softc *ls, uint16_t port) 135 { 136 struct le_softc * const sc = (void *)ls; 137 138 *sc->sc_rap = port; 139 return *sc->sc_rdp; 140 } 141 142 int 143 le_mainbus_match(device_t parent, cfdata_t cf, void *aux) 144 { 145 struct mainbus_attach_args * const ma = aux; 146 int found; 147 vaddr_t va; 148 149 if (strcmp("lance", ma->ma_type)) 150 return 0; 151 152 va = vax_map_physmem(LE_CSR, 1); 153 found = (badaddr((void *)va, 2) == 0); 154 vax_unmap_physmem(va, 1); 155 156 return found; 157 } 158 159 void 160 le_mainbus_attach(device_t parent, device_t self, void *aux) 161 { 162 struct le_softc * const sc = device_private(self); 163 int *lance_addr; 164 int i, vec, br; 165 166 sc->sc_am7990.lsc.sc_dev = self; 167 sc->sc_rdp = (uint16_t *)vax_map_physmem(LE_CSR, 1); 168 sc->sc_rap = sc->sc_rdp + 2; 169 170 /* 171 * Set interrupt vector, by forcing an interrupt. 172 */ 173 scb_vecref(0, 0); /* Clear vector ref */ 174 *sc->sc_rap = LE_CSR0; 175 *sc->sc_rdp = LE_C0_STOP; 176 DELAY(100); 177 *sc->sc_rdp = LE_C0_INIT|LE_C0_INEA; 178 DELAY(100000); 179 i = scb_vecref(&vec, &br); 180 if (i == 0 || vec == 0) 181 return; 182 183 scb_vecalloc(vec, (void (*)(void *))am7990_intr, sc, 184 SCB_ISTACK, &sc->sc_intrcnt); 185 evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 186 device_xname(self), "intr"); 187 188 aprint_normal(": vec %o ipl %x\n%s", vec, br, device_xname(self)); 189 /* 190 * MD functions. 191 */ 192 sc->sc_am7990.lsc.sc_rdcsr = lerdcsr; 193 sc->sc_am7990.lsc.sc_wrcsr = lewrcsr; 194 sc->sc_am7990.lsc.sc_nocarrier = NULL; 195 196 sc->sc_am7990.lsc.sc_mem = 197 (void *)uvm_km_alloc(kernel_map, (128 * 1024), 0, UVM_KMF_VAONLY); 198 if (sc->sc_am7990.lsc.sc_mem == 0) 199 return; 200 201 ioaccess((vaddr_t)sc->sc_am7990.lsc.sc_mem, LE_RAM, 202 (128 * 1024) >> VAX_PGSHIFT); 203 204 205 sc->sc_am7990.lsc.sc_addr = 0; 206 sc->sc_am7990.lsc.sc_memsize = (64 * 1024); 207 208 sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_gap2; 209 sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_gap2; 210 sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_gap2; 211 sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_gap2; 212 sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_gap2; 213 214 /* 215 * Get the ethernet address out of rom 216 */ 217 lance_addr = (int *)vax_map_physmem(LE_ROM, 1); 218 for (i = 0; i < 6; i++) 219 sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i]; 220 vax_unmap_physmem((vaddr_t)lance_addr, 1); 221 222 memcpy(sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname, device_xname(self), 223 IFNAMSIZ); 224 am7990_config(&sc->sc_am7990); 225 } 226 227 /* 228 * gap2: two bytes of data followed by two bytes of pad. 229 * 230 * Buffers must be 4-byte aligned. The code doesn't worry about 231 * doing an extra byte. 232 */ 233 234 void 235 lance_copytobuf_gap2(struct lance_softc *sc, void *fromv, int boff, int len) 236 { 237 volatile void *buf = sc->sc_mem; 238 char *from = fromv; 239 volatile uint16_t *bptr; 240 241 if (boff & 0x1) { 242 /* handle unaligned first byte */ 243 bptr = ((volatile uint16_t *)buf) + (boff - 1); 244 *bptr = (*from++ << 8) | (*bptr & 0xff); 245 bptr += 2; 246 len--; 247 } else 248 bptr = ((volatile uint16_t *)buf) + boff; 249 while (len > 1) { 250 *bptr = (from[1] << 8) | (from[0] & 0xff); 251 bptr += 2; 252 from += 2; 253 len -= 2; 254 } 255 if (len == 1) 256 *bptr = (uint16_t)*from; 257 } 258 259 void 260 lance_copyfrombuf_gap2(struct lance_softc *sc, void *tov, int boff, int len) 261 { 262 volatile void *buf = sc->sc_mem; 263 char *to = tov; 264 volatile uint16_t *bptr; 265 uint16_t tmp; 266 267 if (boff & 0x1) { 268 /* handle unaligned first byte */ 269 bptr = ((volatile uint16_t *)buf) + (boff - 1); 270 *to++ = (*bptr >> 8) & 0xff; 271 bptr += 2; 272 len--; 273 } else 274 bptr = ((volatile uint16_t *)buf) + boff; 275 while (len > 1) { 276 tmp = *bptr; 277 *to++ = tmp & 0xff; 278 *to++ = (tmp >> 8) & 0xff; 279 bptr += 2; 280 len -= 2; 281 } 282 if (len == 1) 283 *to = *bptr & 0xff; 284 } 285 286 void 287 lance_zerobuf_gap2(struct lance_softc *sc, int boff, int len) 288 { 289 volatile void *buf = sc->sc_mem; 290 volatile uint16_t *bptr; 291 292 if ((unsigned int)boff & 0x1) { 293 bptr = ((volatile uint16_t *)buf) + (boff - 1); 294 *bptr &= 0xff; 295 bptr += 2; 296 len--; 297 } else 298 bptr = ((volatile uint16_t *)buf) + boff; 299 while (len > 0) { 300 *bptr = 0; 301 bptr += 2; 302 len -= 2; 303 } 304 } 305