if_le_obio.c revision 1.18
1 /* $NetBSD: if_le_obio.c,v 1.18 2003/04/02 04:35:27 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 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; Jason R. Thorpe of the Numerical Aerospace 9 * Simulation Facility, NASA Ames Research Center; Paul Kranenburg. 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 #include "opt_inet.h" 41 #include "bpfilter.h" 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 #include <sys/malloc.h> 47 #include <sys/socket.h> 48 49 #include <uvm/uvm_extern.h> 50 51 #include <net/if.h> 52 #include <net/if_ether.h> 53 #include <net/if_media.h> 54 55 #include <machine/bus.h> 56 #include <machine/intr.h> 57 #include <machine/autoconf.h> 58 59 #include <dev/ic/lancereg.h> 60 #include <dev/ic/lancevar.h> 61 #include <dev/ic/am7990reg.h> 62 #include <dev/ic/am7990var.h> 63 64 /* 65 * LANCE registers. 66 */ 67 #define LEREG1_RDP 0 /* Register Data port */ 68 #define LEREG1_RAP 2 /* Register Address port */ 69 70 struct le_softc { 71 struct am7990_softc sc_am7990; /* glue to MI code */ 72 bus_space_tag_t sc_bustag; 73 bus_dma_tag_t sc_dmatag; 74 bus_dmamap_t sc_dmamap; 75 bus_space_handle_t sc_reg; /* LANCE registers */ 76 }; 77 78 #define MEMSIZE 0x4000 /* LANCE memory size */ 79 80 int lematch_obio __P((struct device *, struct cfdata *, void *)); 81 void leattach_obio __P((struct device *, struct device *, void *)); 82 83 /* 84 * Media types supported. 85 */ 86 static int lemedia[] = { 87 IFM_ETHER|IFM_10_T, 88 }; 89 #define NLEMEDIA (sizeof(lemedia) / sizeof(lemedia[0])) 90 91 CFATTACH_DECL(le_obio, sizeof(struct le_softc), 92 lematch_obio, leattach_obio, NULL, NULL); 93 94 extern struct cfdriver le_cd; 95 96 #if defined(_KERNEL_OPT) 97 #include "opt_ddb.h" 98 #endif 99 100 #ifdef DDB 101 #define integrate 102 #define hide 103 #else 104 #define integrate static __inline 105 #define hide static 106 #endif 107 108 static void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 109 static u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t)); 110 111 static void 112 lewrcsr(sc, port, val) 113 struct lance_softc *sc; 114 u_int16_t port, val; 115 { 116 struct le_softc *lesc = (struct le_softc *)sc; 117 118 bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port); 119 bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, val); 120 } 121 122 static u_int16_t 123 lerdcsr(sc, port) 124 struct lance_softc *sc; 125 u_int16_t port; 126 { 127 struct le_softc *lesc = (struct le_softc *)sc; 128 129 bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port); 130 return (bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP)); 131 } 132 133 int 134 lematch_obio(parent, cf, aux) 135 struct device *parent; 136 struct cfdata *cf; 137 void *aux; 138 { 139 union obio_attach_args *uoba = aux; 140 struct obio4_attach_args *oba; 141 142 if (uoba->uoba_isobio4 == 0) 143 return (0); 144 145 oba = &uoba->uoba_oba4; 146 return (bus_space_probe(oba->oba_bustag, oba->oba_paddr, 147 2, /* probe size */ 148 0, /* offset */ 149 0, /* flags */ 150 NULL, NULL)); 151 } 152 153 void 154 leattach_obio(parent, self, aux) 155 struct device *parent, *self; 156 void *aux; 157 { 158 union obio_attach_args *uoba = aux; 159 struct obio4_attach_args *oba = &uoba->uoba_oba4; 160 struct le_softc *lesc = (struct le_softc *)self; 161 struct lance_softc *sc = &lesc->sc_am7990.lsc; 162 bus_dma_segment_t seg; 163 bus_dma_tag_t dmatag; 164 int rseg; 165 int error; 166 /* XXX the following declarations should be elsewhere */ 167 extern void myetheraddr __P((u_char *)); 168 169 lesc->sc_bustag = oba->oba_bustag; 170 lesc->sc_dmatag = dmatag = oba->oba_dmatag; 171 172 if (bus_space_map(oba->oba_bustag, oba->oba_paddr, 173 2 * sizeof(u_int16_t), 174 0, &lesc->sc_reg) != 0) { 175 printf("%s @ obio: cannot map registers\n", self->dv_xname); 176 return; 177 } 178 179 /* Get a DMA handle */ 180 if ((error = bus_dmamap_create(dmatag, MEMSIZE, 1, MEMSIZE, 0, 181 BUS_DMA_NOWAIT|BUS_DMA_24BIT, 182 &lesc->sc_dmamap)) != 0) { 183 printf("%s: DMA map create error %d\n", 184 self->dv_xname, error); 185 return; 186 } 187 188 /* Allocate DMA buffer */ 189 if ((error = bus_dmamem_alloc(dmatag, MEMSIZE, PAGE_SIZE, 0, 190 &seg, 1, &rseg, 191 BUS_DMA_NOWAIT | BUS_DMA_24BIT)) != 0) { 192 printf("%s: DMA memory allocation error %d\n", 193 self->dv_xname, error); 194 return; 195 } 196 /* Map DMA buffer into kernel space */ 197 if ((error = bus_dmamem_map(dmatag, &seg, rseg, MEMSIZE, 198 (caddr_t *)&sc->sc_mem, 199 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) { 200 printf("%s: DMA memory map error %d\n", self->dv_xname, error); 201 bus_dmamem_free(lesc->sc_dmatag, &seg, rseg); 202 return; 203 } 204 /* Load DMA buffer */ 205 if ((error = bus_dmamap_load(dmatag, lesc->sc_dmamap, 206 sc->sc_mem, MEMSIZE, NULL, 207 BUS_DMA_NOWAIT)) != 0) { 208 printf("%s: DMA buffer map load error %d\n", 209 self->dv_xname, error); 210 bus_dmamem_unmap(dmatag, (caddr_t)sc->sc_mem, MEMSIZE); 211 bus_dmamem_free(dmatag, &seg, rseg); 212 return; 213 } 214 215 sc->sc_addr = lesc->sc_dmamap->dm_segs[0].ds_addr & 0xffffff; 216 sc->sc_memsize = MEMSIZE; 217 sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON; 218 219 sc->sc_supmedia = lemedia; 220 sc->sc_nsupmedia = NLEMEDIA; 221 sc->sc_defaultmedia = lemedia[0]; 222 223 myetheraddr(sc->sc_enaddr); 224 225 sc->sc_copytodesc = lance_copytobuf_contig; 226 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 227 sc->sc_copytobuf = lance_copytobuf_contig; 228 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 229 sc->sc_zerobuf = lance_zerobuf_contig; 230 231 sc->sc_rdcsr = lerdcsr; 232 sc->sc_wrcsr = lewrcsr; 233 234 am7990_config(&lesc->sc_am7990); 235 236 /* Install interrupt */ 237 (void)bus_intr_establish(lesc->sc_bustag, oba->oba_pri, IPL_NET, 238 am7990_intr, sc); 239 } 240
Indexes created Thu Sep 25 16:09:42 GMT 2025