if_le_isapnp.c revision 1.31
1 /* $NetBSD: if_le_isapnp.c,v 1.31 2007/03/04 06:02:13 christos 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 1.31 2007/03/04 06:02:13 christos 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> 105 106 #define LE_ISAPNP_MEMSIZE 16384 107 108 #define PCNET_SAPROM 0x00 109 #define PCNET_RDP 0x10 110 #define PCNET_RAP 0x12 111 112 /* 113 * Ethernet software status per interface. 114 * 115 * Each interface is referenced by a network interface structure, 116 * ethercom.ec_if, which the routing code uses to locate the interface. 117 * This structure contains the output queue for the interface, its address, ... 118 */ 119 struct le_isapnp_softc { 120 struct am7990_softc sc_am7990; /* glue to MI code */ 121 122 void *sc_ih; 123 bus_space_tag_t sc_iot; /* space cookie */ 124 bus_space_handle_t sc_ioh; /* bus space handle */ 125 bus_dma_tag_t sc_dmat; /* bus dma tag */ 126 bus_dmamap_t sc_dmam; /* bus dma map */ 127 int sc_rap, sc_rdp; /* offsets to LANCE registers */ 128 }; 129 130 int le_isapnp_match(struct device *, struct cfdata *, void *); 131 void le_isapnp_attach(struct device *, struct device *, void *); 132 133 CFATTACH_DECL(le_isapnp, sizeof(struct le_isapnp_softc), 134 le_isapnp_match, le_isapnp_attach, NULL, NULL); 135 136 int le_isapnp_intredge(void *); 137 static void le_isapnp_wrcsr(struct lance_softc *, u_int16_t, u_int16_t); 138 static u_int16_t le_isapnp_rdcsr(struct lance_softc *, u_int16_t); 139 140 static void 141 le_isapnp_wrcsr(sc, port, val) 142 struct lance_softc *sc; 143 u_int16_t port, val; 144 { 145 struct le_isapnp_softc *lesc = (struct le_isapnp_softc *)sc; 146 bus_space_tag_t iot = lesc->sc_iot; 147 bus_space_handle_t ioh = lesc->sc_ioh; 148 149 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 150 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 151 } 152 153 static u_int16_t 154 le_isapnp_rdcsr(sc, port) 155 struct lance_softc *sc; 156 u_int16_t port; 157 { 158 struct le_isapnp_softc *lesc = (struct le_isapnp_softc *)sc; 159 bus_space_tag_t iot = lesc->sc_iot; 160 bus_space_handle_t ioh = lesc->sc_ioh; 161 u_int16_t val; 162 163 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 164 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 165 return (val); 166 } 167 168 int 169 le_isapnp_match(struct device *parent, struct cfdata *match, 170 void *aux) 171 { 172 int pri, variant; 173 174 pri = isapnp_devmatch(aux, &isapnp_le_devinfo, &variant); 175 if (pri && variant > 0) 176 pri = 0; 177 return (pri); 178 } 179 180 void 181 le_isapnp_attach(struct device *parent, struct device *self, void *aux) 182 { 183 struct le_isapnp_softc *lesc = device_private(self); 184 struct lance_softc *sc = &lesc->sc_am7990.lsc; 185 struct isapnp_attach_args *ipa = aux; 186 bus_space_tag_t iot; 187 bus_space_handle_t ioh; 188 bus_dma_tag_t dmat; 189 bus_dma_segment_t seg; 190 int i, rseg, error; 191 192 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 193 printf(": error in region allocation\n"); 194 return; 195 } 196 197 lesc->sc_iot = iot = ipa->ipa_iot; 198 lesc->sc_ioh = ioh = ipa->ipa_io[0].h; 199 lesc->sc_dmat = dmat = ipa->ipa_dmat; 200 201 lesc->sc_rap = PCNET_RAP; 202 lesc->sc_rdp = PCNET_RDP; 203 204 /* 205 * Extract the physical MAC address from the ROM. 206 */ 207 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 208 sc->sc_enaddr[i] = bus_space_read_1(iot, ioh, PCNET_SAPROM + i); 209 210 /* 211 * Allocate a DMA area for the card. 212 */ 213 if (bus_dmamem_alloc(dmat, LE_ISAPNP_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 214 &rseg, BUS_DMA_NOWAIT)) { 215 printf(": couldn't allocate memory for card\n"); 216 return; 217 } 218 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISAPNP_MEMSIZE, 219 (void **)&sc->sc_mem, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 220 printf(": couldn't map memory for card\n"); 221 return; 222 } 223 224 /* 225 * Create and load the DMA map for the DMA area. 226 */ 227 if (bus_dmamap_create(dmat, LE_ISAPNP_MEMSIZE, 1, 228 LE_ISAPNP_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 229 printf(": couldn't create DMA map\n"); 230 bus_dmamem_free(dmat, &seg, rseg); 231 return; 232 } 233 if (bus_dmamap_load(dmat, lesc->sc_dmam, 234 sc->sc_mem, LE_ISAPNP_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 235 printf(": coundn't load DMA map\n"); 236 bus_dmamem_free(dmat, &seg, rseg); 237 return; 238 } 239 240 sc->sc_conf3 = 0; 241 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 242 sc->sc_memsize = LE_ISAPNP_MEMSIZE; 243 244 sc->sc_copytodesc = lance_copytobuf_contig; 245 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 246 sc->sc_copytobuf = lance_copytobuf_contig; 247 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 248 sc->sc_zerobuf = lance_zerobuf_contig; 249 250 sc->sc_rdcsr = le_isapnp_rdcsr; 251 sc->sc_wrcsr = le_isapnp_wrcsr; 252 sc->sc_hwinit = NULL; 253 254 if (ipa->ipa_ndrq > 0) { 255 if ((error = isa_dmacascade(ipa->ipa_ic, 256 ipa->ipa_drq[0].num)) != 0) { 257 printf(": unable to cascade DRQ, error = %d\n", error); 258 return; 259 } 260 } 261 262 lesc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 263 ipa->ipa_irq[0].type, IPL_NET, le_isapnp_intredge, sc); 264 265 printf(": %s %s\n", ipa->ipa_devident, ipa->ipa_devclass); 266 267 printf("%s", sc->sc_dev.dv_xname); 268 am7990_config(&lesc->sc_am7990); 269 } 270 271 272 /* 273 * Controller interrupt. 274 */ 275 int 276 le_isapnp_intredge(arg) 277 void *arg; 278 { 279 280 if (am7990_intr(arg) == 0) 281 return (0); 282 for (;;) 283 if (am7990_intr(arg) == 0) 284 return (1); 285 } 286
Indexes created Tue Sep 30 07:10:03 GMT 2025