1 /* $NetBSD: if_le.c,v 1.53 2003/05/24 06:21:22 gmcgarry 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. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 75 */ 76 77 #include <sys/cdefs.h> 78 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.53 2003/05/24 06:21:22 gmcgarry Exp $"); 79 80 #include "opt_inet.h" 81 #include "bpfilter.h" 82 83 #include <sys/param.h> 84 #include <sys/systm.h> 85 #include <sys/device.h> 86 87 #include <net/if.h> 88 #include <net/if_ether.h> 89 #include <net/if_media.h> 90 91 #include <dev/ic/lancereg.h> 92 #include <dev/ic/lancevar.h> 93 #include <dev/ic/am7990var.h> 94 95 #include <hp300/dev/diovar.h> 96 #include <hp300/dev/diodevs.h> 97 #include <hp300/dev/if_lereg.h> 98 99 #include "opt_useleds.h" 100 101 #ifdef USELEDS 102 #include <hp300/hp300/leds.h> 103 #endif 104 105 struct le_softc { 106 struct am7990_softc sc_am7990; /* glue to MI code */ 107 108 bus_space_tag_t sc_bst; 109 110 bus_space_handle_t sc_bsh0; /* DIO registers */ 111 bus_space_handle_t sc_bsh1; /* LANCE registers */ 112 bus_space_handle_t sc_bsh2; /* buffer area */ 113 }; 114 115 int lematch(struct device *, struct cfdata *, void *); 116 void leattach(struct device *, struct device *, void *); 117 118 CFATTACH_DECL(le, sizeof(struct le_softc), 119 lematch, leattach, NULL, NULL); 120 121 int leintr(void *); 122 123 #if defined(_KERNEL_OPT) 124 #include "opt_ddb.h" 125 #endif 126 127 #ifdef DDB 128 #define integrate 129 #define hide 130 #else 131 #define integrate static __inline 132 #define hide static 133 #endif 134 135 hide void le_copytobuf(struct lance_softc *, void *, int, int); 136 hide void le_copyfrombuf(struct lance_softc *, void *, int, int); 137 hide void le_zerobuf(struct lance_softc *, int, int); 138 139 /* offsets for: ID, REGS, MEM, NVRAM */ 140 int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; 141 142 hide void lewrcsr(struct lance_softc *, u_int16_t, u_int16_t); 143 hide u_int16_t lerdcsr(struct lance_softc *, u_int16_t); 144 145 hide void 146 lewrcsr(struct lance_softc *sc, u_int16_t port, u_int16_t val) 147 { 148 struct le_softc *lesc = (struct le_softc *)sc; 149 bus_space_tag_t bst = lesc->sc_bst; 150 bus_space_handle_t bsh0 = lesc->sc_bsh0; 151 bus_space_handle_t bsh1 = lesc->sc_bsh1; 152 153 do { 154 bus_space_write_2(bst, bsh1, LER1_RAP, port); 155 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 156 do { 157 bus_space_write_2(bst, bsh1, LER1_RDP, val); 158 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 159 } 160 161 hide u_int16_t 162 lerdcsr(struct lance_softc *sc, u_int16_t port) 163 { 164 struct le_softc *lesc = (struct le_softc *)sc; 165 bus_space_tag_t bst = lesc->sc_bst; 166 bus_space_handle_t bsh0 = lesc->sc_bsh0; 167 bus_space_handle_t bsh1 = lesc->sc_bsh1; 168 u_int16_t val; 169 170 do { 171 bus_space_write_2(bst, bsh1, LER1_RAP, port); 172 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 173 do { 174 val = bus_space_read_2(bst, bsh1, LER1_RDP); 175 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 176 177 return (val); 178 } 179 180 int 181 lematch(struct device *parent, struct cfdata *match, void *aux) 182 { 183 struct dio_attach_args *da = aux; 184 185 if (da->da_id == DIO_DEVICE_ID_LAN) 186 return (1); 187 return (0); 188 } 189 190 /* 191 * Interface exists: make available by filling in network interface 192 * record. System will initialize the interface when it is ready 193 * to accept packets. 194 */ 195 void 196 leattach(struct device *parent, struct device *self, void *aux) 197 { 198 struct dio_attach_args *da = aux; 199 struct le_softc *lesc = (struct le_softc *)self; 200 struct lance_softc *sc = &lesc->sc_am7990.lsc; 201 bus_space_tag_t bst = da->da_bst; 202 bus_space_handle_t bsh0, bsh1, bsh2; 203 bus_size_t offset; 204 int i; 205 206 if (bus_space_map(bst, (bus_addr_t)dio_scodetopa(da->da_scode), 207 da->da_size, 0, &bsh0)) { 208 printf("\n%s: can't map LANCE registers\n", 209 sc->sc_dev.dv_xname); 210 return; 211 } 212 213 if (bus_space_subregion(bst, bsh0, lestd[1], LER1_SIZE, &bsh1)) { 214 printf("\n%s: can't subregion LANCE space\n", 215 sc->sc_dev.dv_xname); 216 return; 217 } 218 219 if (bus_space_subregion(bst, bsh0, lestd[2], LE_BUFSIZE, &bsh2)) { 220 printf("\n%s: can't subregion buffer space\n", 221 sc->sc_dev.dv_xname); 222 return; 223 } 224 225 lesc->sc_bst = bst; 226 lesc->sc_bsh0 = bsh0; 227 lesc->sc_bsh1 = bsh1; 228 lesc->sc_bsh2 = bsh2; 229 230 bus_space_write_1(bst, bsh0, LER0_ID, 0xff); 231 DELAY(100); 232 233 sc->sc_conf3 = LE_C3_BSWP; 234 sc->sc_addr = 0; 235 sc->sc_memsize = LE_BUFSIZE; 236 237 /* 238 * Read the ethernet address off the board, one nibble at a time. 239 */ 240 offset = lestd[3]; 241 for (i = 0; i < sizeof(sc->sc_enaddr); i++) { 242 sc->sc_enaddr[i] = 243 (bus_space_read_1(bst, bsh0, ++offset) & 0xf) << 4; 244 offset++; 245 sc->sc_enaddr[i] |= 246 (bus_space_read_1(bst, bsh0, ++offset) & 0xf); 247 offset++; 248 } 249 250 sc->sc_copytodesc = le_copytobuf; 251 sc->sc_copyfromdesc = le_copyfrombuf; 252 sc->sc_copytobuf = le_copytobuf; 253 sc->sc_copyfrombuf = le_copyfrombuf; 254 sc->sc_zerobuf = le_zerobuf; 255 256 sc->sc_rdcsr = lerdcsr; 257 sc->sc_wrcsr = lewrcsr; 258 sc->sc_hwinit = NULL; 259 260 am7990_config(&lesc->sc_am7990); 261 262 /* Establish the interrupt handler. */ 263 (void) dio_intr_establish(leintr, sc, da->da_ipl, IPL_NET); 264 bus_space_write_1(bst, bsh0, LER0_STATUS, LE_IE); 265 } 266 267 int 268 leintr(void *arg) 269 { 270 struct lance_softc *sc = arg; 271 #ifdef USELEDS 272 u_int16_t isr; 273 274 isr = lerdcsr(sc, LE_CSR0); 275 276 if ((isr & LE_C0_INTR) == 0) 277 return (0); 278 279 if (isr & LE_C0_RINT) 280 ledcontrol(0, 0, LED_LANRCV); 281 282 if (isr & LE_C0_TINT) 283 ledcontrol(0, 0, LED_LANXMT); 284 #endif /* USELEDS */ 285 286 return (am7990_intr(sc)); 287 } 288 289 hide void 290 le_copytobuf(struct lance_softc *sc, void *from, int boff, int len) 291 { 292 struct le_softc *lesc = (struct le_softc *)sc; 293 294 bus_space_write_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, from, len); 295 } 296 297 hide void 298 le_copyfrombuf(struct lance_softc *sc, void *to, int boff, int len) 299 { 300 struct le_softc *lesc = (struct le_softc *)sc; 301 302 bus_space_read_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, to, len); 303 } 304 305 hide void 306 le_zerobuf(struct lance_softc *sc, int boff, int len) 307 { 308 struct le_softc *lesc = (struct le_softc *)sc; 309 310 bus_space_set_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, 0, len); 311 } 312