if_le.c revision 1.56
1 /* $NetBSD: if_le.c,v 1.56 2004/08/28 17:37:01 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 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. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /*- 40 * Copyright (c) 1992, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * Ralph Campbell and Rick Macklem. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 * 70 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 71 */ 72 73 #include <sys/cdefs.h> 74 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.56 2004/08/28 17:37:01 thorpej Exp $"); 75 76 #include "opt_inet.h" 77 #include "bpfilter.h" 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/device.h> 82 83 #include <net/if.h> 84 #include <net/if_ether.h> 85 #include <net/if_media.h> 86 87 #include <dev/ic/lancereg.h> 88 #include <dev/ic/lancevar.h> 89 #include <dev/ic/am7990var.h> 90 91 #include <hp300/dev/diovar.h> 92 #include <hp300/dev/diodevs.h> 93 #include <hp300/dev/if_lereg.h> 94 95 #include "opt_useleds.h" 96 97 #ifdef USELEDS 98 #include <hp300/hp300/leds.h> 99 #endif 100 101 struct le_softc { 102 struct am7990_softc sc_am7990; /* glue to MI code */ 103 104 bus_space_tag_t sc_bst; 105 106 bus_space_handle_t sc_bsh0; /* DIO registers */ 107 bus_space_handle_t sc_bsh1; /* LANCE registers */ 108 bus_space_handle_t sc_bsh2; /* buffer area */ 109 }; 110 111 static int lematch(struct device *, struct cfdata *, void *); 112 static void leattach(struct device *, struct device *, void *); 113 114 CFATTACH_DECL(le, sizeof(struct le_softc), 115 lematch, leattach, NULL, NULL); 116 117 static int leintr(void *); 118 119 #if defined(_KERNEL_OPT) 120 #include "opt_ddb.h" 121 #endif 122 123 static void le_copytobuf(struct lance_softc *, void *, int, int); 124 static void le_copyfrombuf(struct lance_softc *, void *, int, int); 125 static void le_zerobuf(struct lance_softc *, int, int); 126 127 /* offsets for: ID, REGS, MEM, NVRAM */ 128 static const int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; 129 130 static void 131 lewrcsr(struct lance_softc *sc, u_int16_t port, u_int16_t val) 132 { 133 struct le_softc *lesc = (struct le_softc *)sc; 134 bus_space_tag_t bst = lesc->sc_bst; 135 bus_space_handle_t bsh0 = lesc->sc_bsh0; 136 bus_space_handle_t bsh1 = lesc->sc_bsh1; 137 138 do { 139 bus_space_write_2(bst, bsh1, LER1_RAP, port); 140 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 141 do { 142 bus_space_write_2(bst, bsh1, LER1_RDP, val); 143 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 144 } 145 146 static u_int16_t 147 lerdcsr(struct lance_softc *sc, u_int16_t port) 148 { 149 struct le_softc *lesc = (struct le_softc *)sc; 150 bus_space_tag_t bst = lesc->sc_bst; 151 bus_space_handle_t bsh0 = lesc->sc_bsh0; 152 bus_space_handle_t bsh1 = lesc->sc_bsh1; 153 u_int16_t val; 154 155 do { 156 bus_space_write_2(bst, bsh1, LER1_RAP, port); 157 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 158 do { 159 val = bus_space_read_2(bst, bsh1, LER1_RDP); 160 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 161 162 return (val); 163 } 164 165 static int 166 lematch(struct device *parent, struct cfdata *match, void *aux) 167 { 168 struct dio_attach_args *da = aux; 169 170 if (da->da_id == DIO_DEVICE_ID_LAN) 171 return (1); 172 return (0); 173 } 174 175 /* 176 * Interface exists: make available by filling in network interface 177 * record. System will initialize the interface when it is ready 178 * to accept packets. 179 */ 180 static void 181 leattach(struct device *parent, struct device *self, void *aux) 182 { 183 struct dio_attach_args *da = aux; 184 struct le_softc *lesc = (struct le_softc *)self; 185 struct lance_softc *sc = &lesc->sc_am7990.lsc; 186 bus_space_tag_t bst = da->da_bst; 187 bus_space_handle_t bsh0, bsh1, bsh2; 188 bus_size_t offset; 189 int i; 190 191 if (bus_space_map(bst, (bus_addr_t)dio_scodetopa(da->da_scode), 192 da->da_size, 0, &bsh0)) { 193 printf("\n%s: can't map LANCE registers\n", 194 sc->sc_dev.dv_xname); 195 return; 196 } 197 198 if (bus_space_subregion(bst, bsh0, lestd[1], LER1_SIZE, &bsh1)) { 199 printf("\n%s: can't subregion LANCE space\n", 200 sc->sc_dev.dv_xname); 201 return; 202 } 203 204 if (bus_space_subregion(bst, bsh0, lestd[2], LE_BUFSIZE, &bsh2)) { 205 printf("\n%s: can't subregion buffer space\n", 206 sc->sc_dev.dv_xname); 207 return; 208 } 209 210 lesc->sc_bst = bst; 211 lesc->sc_bsh0 = bsh0; 212 lesc->sc_bsh1 = bsh1; 213 lesc->sc_bsh2 = bsh2; 214 215 bus_space_write_1(bst, bsh0, LER0_ID, 0xff); 216 DELAY(100); 217 218 sc->sc_conf3 = LE_C3_BSWP; 219 sc->sc_addr = 0; 220 sc->sc_memsize = LE_BUFSIZE; 221 222 /* 223 * Read the ethernet address off the board, one nibble at a time. 224 */ 225 offset = lestd[3]; 226 for (i = 0; i < sizeof(sc->sc_enaddr); i++) { 227 sc->sc_enaddr[i] = 228 (bus_space_read_1(bst, bsh0, ++offset) & 0xf) << 4; 229 offset++; 230 sc->sc_enaddr[i] |= 231 (bus_space_read_1(bst, bsh0, ++offset) & 0xf); 232 offset++; 233 } 234 235 sc->sc_copytodesc = le_copytobuf; 236 sc->sc_copyfromdesc = le_copyfrombuf; 237 sc->sc_copytobuf = le_copytobuf; 238 sc->sc_copyfrombuf = le_copyfrombuf; 239 sc->sc_zerobuf = le_zerobuf; 240 241 sc->sc_rdcsr = lerdcsr; 242 sc->sc_wrcsr = lewrcsr; 243 sc->sc_hwinit = NULL; 244 245 am7990_config(&lesc->sc_am7990); 246 247 /* Establish the interrupt handler. */ 248 (void) dio_intr_establish(leintr, sc, da->da_ipl, IPL_NET); 249 bus_space_write_1(bst, bsh0, LER0_STATUS, LE_IE); 250 } 251 252 static int 253 leintr(void *arg) 254 { 255 struct lance_softc *sc = arg; 256 #ifdef USELEDS 257 u_int16_t isr; 258 259 isr = lerdcsr(sc, LE_CSR0); 260 261 if ((isr & LE_C0_INTR) == 0) 262 return (0); 263 264 if (isr & LE_C0_RINT) 265 ledcontrol(0, 0, LED_LANRCV); 266 267 if (isr & LE_C0_TINT) 268 ledcontrol(0, 0, LED_LANXMT); 269 #endif /* USELEDS */ 270 271 return (am7990_intr(sc)); 272 } 273 274 static void 275 le_copytobuf(struct lance_softc *sc, void *from, int boff, int len) 276 { 277 struct le_softc *lesc = (struct le_softc *)sc; 278 279 bus_space_write_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, from, len); 280 } 281 282 static void 283 le_copyfrombuf(struct lance_softc *sc, void *to, int boff, int len) 284 { 285 struct le_softc *lesc = (struct le_softc *)sc; 286 287 bus_space_read_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, to, len); 288 } 289 290 static void 291 le_zerobuf(struct lance_softc *sc, int boff, int len) 292 { 293 struct le_softc *lesc = (struct le_softc *)sc; 294 295 bus_space_set_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, 0, len); 296 } 297
Indexes created Wed Sep 24 05:09:52 GMT 2025