if_le.c revision 1.60.2.1
1 /* $NetBSD: if_le.c,v 1.60.2.1 2008/05/18 12:31:56 yamt 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1992, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * This code is derived from software contributed to Berkeley by 37 * Ralph Campbell and Rick Macklem. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 * 63 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 64 */ 65 66 #include <sys/cdefs.h> 67 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.60.2.1 2008/05/18 12:31:56 yamt Exp $"); 68 69 #include "opt_inet.h" 70 #include "bpfilter.h" 71 72 #include <sys/param.h> 73 #include <sys/systm.h> 74 #include <sys/device.h> 75 76 #include <net/if.h> 77 #include <net/if_ether.h> 78 #include <net/if_media.h> 79 80 #include <dev/ic/lancereg.h> 81 #include <dev/ic/lancevar.h> 82 #include <dev/ic/am7990var.h> 83 84 #include <hp300/dev/diovar.h> 85 #include <hp300/dev/diodevs.h> 86 #include <hp300/dev/if_lereg.h> 87 88 #include "opt_useleds.h" 89 90 #ifdef USELEDS 91 #include <hp300/hp300/leds.h> 92 #endif 93 94 struct le_softc { 95 struct am7990_softc sc_am7990; /* glue to MI code */ 96 97 bus_space_tag_t sc_bst; 98 99 bus_space_handle_t sc_bsh0; /* DIO registers */ 100 bus_space_handle_t sc_bsh1; /* LANCE registers */ 101 bus_space_handle_t sc_bsh2; /* buffer area */ 102 }; 103 104 static int lematch(device_t, cfdata_t, void *); 105 static void leattach(device_t, device_t, void *); 106 107 CFATTACH_DECL_NEW(le, sizeof(struct le_softc), 108 lematch, leattach, NULL, NULL); 109 110 static int leintr(void *); 111 112 #if defined(_KERNEL_OPT) 113 #include "opt_ddb.h" 114 #endif 115 116 static void le_copytobuf(struct lance_softc *, void *, int, int); 117 static void le_copyfrombuf(struct lance_softc *, void *, int, int); 118 static void le_zerobuf(struct lance_softc *, int, int); 119 120 /* offsets for: ID, REGS, MEM, NVRAM */ 121 static const int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; 122 123 static void 124 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 125 { 126 struct le_softc *lesc = (struct le_softc *)sc; 127 bus_space_tag_t bst = lesc->sc_bst; 128 bus_space_handle_t bsh0 = lesc->sc_bsh0; 129 bus_space_handle_t bsh1 = lesc->sc_bsh1; 130 131 do { 132 bus_space_write_2(bst, bsh1, LER1_RAP, port); 133 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 134 do { 135 bus_space_write_2(bst, bsh1, LER1_RDP, val); 136 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 137 } 138 139 static uint16_t 140 lerdcsr(struct lance_softc *sc, uint16_t port) 141 { 142 struct le_softc *lesc = (struct le_softc *)sc; 143 bus_space_tag_t bst = lesc->sc_bst; 144 bus_space_handle_t bsh0 = lesc->sc_bsh0; 145 bus_space_handle_t bsh1 = lesc->sc_bsh1; 146 uint16_t val; 147 148 do { 149 bus_space_write_2(bst, bsh1, LER1_RAP, port); 150 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 151 do { 152 val = bus_space_read_2(bst, bsh1, LER1_RDP); 153 } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); 154 155 return val; 156 } 157 158 static int 159 lematch(device_t parent, cfdata_t cf, void *aux) 160 { 161 struct dio_attach_args *da = aux; 162 163 if (da->da_id == DIO_DEVICE_ID_LAN) 164 return 1; 165 return 0; 166 } 167 168 /* 169 * Interface exists: make available by filling in network interface 170 * record. System will initialize the interface when it is ready 171 * to accept packets. 172 */ 173 static void 174 leattach(device_t parent, device_t self, void *aux) 175 { 176 struct le_softc *lesc = device_private(self); 177 struct lance_softc *sc = &lesc->sc_am7990.lsc; 178 struct dio_attach_args *da = aux; 179 bus_space_tag_t bst = da->da_bst; 180 bus_space_handle_t bsh0, bsh1, bsh2; 181 bus_size_t offset; 182 int i; 183 184 sc->sc_dev = self; 185 186 if (bus_space_map(bst, (bus_addr_t)dio_scodetopa(da->da_scode), 187 da->da_size, 0, &bsh0)) { 188 aprint_error(": can't map LANCE registers\n"); 189 return; 190 } 191 192 if (bus_space_subregion(bst, bsh0, lestd[1], LER1_SIZE, &bsh1)) { 193 aprint_error(": can't subregion LANCE space\n"); 194 return; 195 } 196 197 if (bus_space_subregion(bst, bsh0, lestd[2], LE_BUFSIZE, &bsh2)) { 198 aprint_error(": can't subregion buffer space\n"); 199 return; 200 } 201 202 lesc->sc_bst = bst; 203 lesc->sc_bsh0 = bsh0; 204 lesc->sc_bsh1 = bsh1; 205 lesc->sc_bsh2 = bsh2; 206 207 bus_space_write_1(bst, bsh0, LER0_ID, 0xff); 208 DELAY(100); 209 210 sc->sc_conf3 = LE_C3_BSWP; 211 sc->sc_addr = 0; 212 sc->sc_memsize = LE_BUFSIZE; 213 214 /* 215 * Read the ethernet address off the board, one nibble at a time. 216 */ 217 offset = lestd[3]; 218 for (i = 0; i < sizeof(sc->sc_enaddr); i++) { 219 sc->sc_enaddr[i] = 220 (bus_space_read_1(bst, bsh0, ++offset) & 0xf) << 4; 221 offset++; 222 sc->sc_enaddr[i] |= 223 (bus_space_read_1(bst, bsh0, ++offset) & 0xf); 224 offset++; 225 } 226 227 sc->sc_copytodesc = le_copytobuf; 228 sc->sc_copyfromdesc = le_copyfrombuf; 229 sc->sc_copytobuf = le_copytobuf; 230 sc->sc_copyfrombuf = le_copyfrombuf; 231 sc->sc_zerobuf = le_zerobuf; 232 233 sc->sc_rdcsr = lerdcsr; 234 sc->sc_wrcsr = lewrcsr; 235 sc->sc_hwinit = NULL; 236 237 am7990_config(&lesc->sc_am7990); 238 239 /* Establish the interrupt handler. */ 240 (void) dio_intr_establish(leintr, sc, da->da_ipl, IPL_NET); 241 bus_space_write_1(bst, bsh0, LER0_STATUS, LE_IE); 242 } 243 244 static int 245 leintr(void *arg) 246 { 247 struct lance_softc *sc = arg; 248 #ifdef USELEDS 249 uint16_t isr; 250 251 isr = lerdcsr(sc, LE_CSR0); 252 253 if ((isr & LE_C0_INTR) == 0) 254 return 0; 255 256 if (isr & LE_C0_RINT) 257 ledcontrol(0, 0, LED_LANRCV); 258 259 if (isr & LE_C0_TINT) 260 ledcontrol(0, 0, LED_LANXMT); 261 #endif /* USELEDS */ 262 263 return am7990_intr(sc); 264 } 265 266 static void 267 le_copytobuf(struct lance_softc *sc, void *from, int boff, int len) 268 { 269 struct le_softc *lesc = (struct le_softc *)sc; 270 271 bus_space_write_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, from, len); 272 } 273 274 static void 275 le_copyfrombuf(struct lance_softc *sc, void *to, int boff, int len) 276 { 277 struct le_softc *lesc = (struct le_softc *)sc; 278 279 bus_space_read_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, to, len); 280 } 281 282 static void 283 le_zerobuf(struct lance_softc *sc, int boff, int len) 284 { 285 struct le_softc *lesc = (struct le_softc *)sc; 286 287 bus_space_set_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, 0, len); 288 } 289
Indexes created Mon Oct 20 03:09:53 GMT 2025