if_le_isapnp.c revision 1.20
1 /* $NetBSD: if_le_isapnp.c,v 1.20 2001/11/13 07:56:40 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1997 Jonathan Stone <jonathan (at) NetBSD.org> and 42 * Matthias Drochner. All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by Jonathan Stone. 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: if_le_isapnp.c,v 1.20 2001/11/13 07:56:40 lukem Exp $"); 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/mbuf.h> 76 #include <sys/socket.h> 77 #include <sys/ioctl.h> 78 #include <sys/errno.h> 79 #include <sys/syslog.h> 80 #include <sys/select.h> 81 #include <sys/device.h> 82 83 #include <uvm/uvm_extern.h> 84 85 #include <net/if.h> 86 #include <net/if_dl.h> 87 #include <net/if_ether.h> 88 #include <net/if_media.h> 89 90 #include <machine/cpu.h> 91 #include <machine/bus.h> 92 #include <machine/intr.h> 93 94 #include <dev/isa/isavar.h> 95 #include <dev/isa/isadmavar.h> 96 97 #include <dev/isapnp/isapnpreg.h> 98 #include <dev/isapnp/isapnpvar.h> 99 #include <dev/isapnp/isapnpdevs.h> 100 101 #include <dev/ic/lancereg.h> 102 #include <dev/ic/lancevar.h> 103 #include <dev/ic/am7990reg.h> 104 #include <dev/ic/am7990var.h> 105 #include <dev/isapnp/if_levar.h> 106 107 int le_isapnp_match __P((struct device *, struct cfdata *, void *)); 108 void le_isapnp_attach __P((struct device *, struct device *, void *)); 109 110 struct cfattach le_isapnp_ca = { 111 sizeof(struct le_softc), le_isapnp_match, le_isapnp_attach 112 }; 113 114 int le_isapnp_intredge __P((void *)); 115 static void le_isapnp_wrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 116 static u_int16_t le_isapnp_rdcsr __P((struct lance_softc *, u_int16_t)); 117 118 119 #define LE_ISAPNP_MEMSIZE 16384 120 121 static void 122 le_isapnp_wrcsr(sc, port, val) 123 struct lance_softc *sc; 124 u_int16_t port, val; 125 { 126 struct le_softc *lesc = (struct le_softc *)sc; 127 bus_space_tag_t iot = lesc->sc_iot; 128 bus_space_handle_t ioh = lesc->sc_ioh; 129 130 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 131 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 132 } 133 134 static u_int16_t 135 le_isapnp_rdcsr(sc, port) 136 struct lance_softc *sc; 137 u_int16_t port; 138 { 139 struct le_softc *lesc = (struct le_softc *)sc; 140 bus_space_tag_t iot = lesc->sc_iot; 141 bus_space_handle_t ioh = lesc->sc_ioh; 142 u_int16_t val; 143 144 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 145 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 146 return (val); 147 } 148 149 int 150 le_isapnp_match(parent, match, aux) 151 struct device *parent; 152 struct cfdata *match; 153 void *aux; 154 { 155 int pri, variant; 156 157 pri = isapnp_devmatch(aux, &isapnp_le_devinfo, &variant); 158 if (pri && variant > 0) 159 pri = 0; 160 return (pri); 161 } 162 163 void 164 le_isapnp_attach(parent, self, aux) 165 struct device *parent, *self; 166 void *aux; 167 { 168 struct le_softc *lesc = (void *)self; 169 struct lance_softc *sc = &lesc->sc_am7990.lsc; 170 struct isapnp_attach_args *ipa = aux; 171 bus_space_tag_t iot; 172 bus_space_handle_t ioh; 173 bus_dma_tag_t dmat; 174 bus_dma_segment_t seg; 175 int i, rseg, error; 176 177 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 178 printf("%s: error in region allocation\n", 179 sc->sc_dev.dv_xname); 180 return; 181 } 182 183 lesc->sc_iot = iot = ipa->ipa_iot; 184 lesc->sc_ioh = ioh = ipa->ipa_io[0].h; 185 lesc->sc_dmat = dmat = ipa->ipa_dmat; 186 187 lesc->sc_rap = PCNET_RAP; 188 lesc->sc_rdp = PCNET_RDP; 189 190 /* 191 * Extract the physical MAC address from the ROM. 192 */ 193 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 194 sc->sc_enaddr[i] = bus_space_read_1(iot, ioh, PCNET_SAPROM+i); 195 196 /* 197 * Allocate a DMA area for the card. 198 */ 199 if (bus_dmamem_alloc(dmat, LE_ISAPNP_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 200 &rseg, BUS_DMA_NOWAIT)) { 201 printf("%s: couldn't allocate memory for card\n", 202 sc->sc_dev.dv_xname); 203 return; 204 } 205 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISAPNP_MEMSIZE, 206 (caddr_t *)&sc->sc_mem, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 207 printf("%s: couldn't map memory for card\n", 208 sc->sc_dev.dv_xname); 209 return; 210 } 211 212 /* 213 * Create and load the DMA map for the DMA area. 214 */ 215 if (bus_dmamap_create(dmat, LE_ISAPNP_MEMSIZE, 1, 216 LE_ISAPNP_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 217 printf("%s: couldn't create DMA map\n", 218 sc->sc_dev.dv_xname); 219 bus_dmamem_free(dmat, &seg, rseg); 220 return; 221 } 222 if (bus_dmamap_load(dmat, lesc->sc_dmam, 223 sc->sc_mem, LE_ISAPNP_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 224 printf("%s: coundn't load DMA map\n", 225 sc->sc_dev.dv_xname); 226 bus_dmamem_free(dmat, &seg, rseg); 227 return; 228 } 229 230 sc->sc_conf3 = 0; 231 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 232 sc->sc_memsize = LE_ISAPNP_MEMSIZE; 233 234 sc->sc_copytodesc = lance_copytobuf_contig; 235 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 236 sc->sc_copytobuf = lance_copytobuf_contig; 237 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 238 sc->sc_zerobuf = lance_zerobuf_contig; 239 240 sc->sc_rdcsr = le_isapnp_rdcsr; 241 sc->sc_wrcsr = le_isapnp_wrcsr; 242 sc->sc_hwinit = NULL; 243 244 if (ipa->ipa_ndrq > 0) { 245 if ((error = isa_dmacascade(ipa->ipa_ic, 246 ipa->ipa_drq[0].num)) != 0) { 247 printf("%s: unable to cascade DRQ, error = %d\n", 248 sc->sc_dev.dv_xname, error); 249 return; 250 } 251 } 252 253 lesc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 254 ipa->ipa_irq[0].type, IPL_NET, le_isapnp_intredge, sc); 255 256 printf("%s: %s %s\n", sc->sc_dev.dv_xname, ipa->ipa_devident, 257 ipa->ipa_devclass); 258 am7990_config(&lesc->sc_am7990); 259 } 260 261 262 /* 263 * Controller interrupt. 264 */ 265 int 266 le_isapnp_intredge(arg) 267 void *arg; 268 { 269 270 if (am7990_intr(arg) == 0) 271 return (0); 272 for (;;) 273 if (am7990_intr(arg) == 0) 274 return (1); 275 } 276
Indexes created Mon Sep 29 21:09:56 GMT 2025