if_le_obio.c revision 1.19
1 /* $NetBSD: if_le_obio.c,v 1.19 2003/07/15 00:04:55 lukem 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 <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: if_le_obio.c,v 1.19 2003/07/15 00:04:55 lukem Exp $"); 42 43 #include "opt_inet.h" 44 #include "bpfilter.h" 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 #include <sys/malloc.h> 50 #include <sys/socket.h> 51 52 #include <uvm/uvm_extern.h> 53 54 #include <net/if.h> 55 #include <net/if_ether.h> 56 #include <net/if_media.h> 57 58 #include <machine/bus.h> 59 #include <machine/intr.h> 60 #include <machine/autoconf.h> 61 62 #include <dev/ic/lancereg.h> 63 #include <dev/ic/lancevar.h> 64 #include <dev/ic/am7990reg.h> 65 #include <dev/ic/am7990var.h> 66 67 /* 68 * LANCE registers. 69 */ 70 #define LEREG1_RDP 0 /* Register Data port */ 71 #define LEREG1_RAP 2 /* Register Address port */ 72 73 struct le_softc { 74 struct am7990_softc sc_am7990; /* glue to MI code */ 75 bus_space_tag_t sc_bustag; 76 bus_dma_tag_t sc_dmatag; 77 bus_dmamap_t sc_dmamap; 78 bus_space_handle_t sc_reg; /* LANCE registers */ 79 }; 80 81 #define MEMSIZE 0x4000 /* LANCE memory size */ 82 83 int lematch_obio __P((struct device *, struct cfdata *, void *)); 84 void leattach_obio __P((struct device *, struct device *, void *)); 85 86 /* 87 * Media types supported. 88 */ 89 static int lemedia[] = { 90 IFM_ETHER|IFM_10_T, 91 }; 92 #define NLEMEDIA (sizeof(lemedia) / sizeof(lemedia[0])) 93 94 CFATTACH_DECL(le_obio, sizeof(struct le_softc), 95 lematch_obio, leattach_obio, NULL, NULL); 96 97 extern struct cfdriver le_cd; 98 99 #if defined(_KERNEL_OPT) 100 #include "opt_ddb.h" 101 #endif 102 103 #ifdef DDB 104 #define integrate 105 #define hide 106 #else 107 #define integrate static __inline 108 #define hide static 109 #endif 110 111 static void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 112 static u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t)); 113 114 static void 115 lewrcsr(sc, port, val) 116 struct lance_softc *sc; 117 u_int16_t port, val; 118 { 119 struct le_softc *lesc = (struct le_softc *)sc; 120 121 bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port); 122 bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, val); 123 } 124 125 static u_int16_t 126 lerdcsr(sc, port) 127 struct lance_softc *sc; 128 u_int16_t port; 129 { 130 struct le_softc *lesc = (struct le_softc *)sc; 131 132 bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port); 133 return (bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP)); 134 } 135 136 int 137 lematch_obio(parent, cf, aux) 138 struct device *parent; 139 struct cfdata *cf; 140 void *aux; 141 { 142 union obio_attach_args *uoba = aux; 143 struct obio4_attach_args *oba; 144 145 if (uoba->uoba_isobio4 == 0) 146 return (0); 147 148 oba = &uoba->uoba_oba4; 149 return (bus_space_probe(oba->oba_bustag, oba->oba_paddr, 150 2, /* probe size */ 151 0, /* offset */ 152 0, /* flags */ 153 NULL, NULL)); 154 } 155 156 void 157 leattach_obio(parent, self, aux) 158 struct device *parent, *self; 159 void *aux; 160 { 161 union obio_attach_args *uoba = aux; 162 struct obio4_attach_args *oba = &uoba->uoba_oba4; 163 struct le_softc *lesc = (struct le_softc *)self; 164 struct lance_softc *sc = &lesc->sc_am7990.lsc; 165 bus_dma_segment_t seg; 166 bus_dma_tag_t dmatag; 167 int rseg; 168 int error; 169 /* XXX the following declarations should be elsewhere */ 170 extern void myetheraddr __P((u_char *)); 171 172 lesc->sc_bustag = oba->oba_bustag; 173 lesc->sc_dmatag = dmatag = oba->oba_dmatag; 174 175 if (bus_space_map(oba->oba_bustag, oba->oba_paddr, 176 2 * sizeof(u_int16_t), 177 0, &lesc->sc_reg) != 0) { 178 printf("%s @ obio: cannot map registers\n", self->dv_xname); 179 return; 180 } 181 182 /* Get a DMA handle */ 183 if ((error = bus_dmamap_create(dmatag, MEMSIZE, 1, MEMSIZE, 0, 184 BUS_DMA_NOWAIT|BUS_DMA_24BIT, 185 &lesc->sc_dmamap)) != 0) { 186 printf("%s: DMA map create error %d\n", 187 self->dv_xname, error); 188 return; 189 } 190 191 /* Allocate DMA buffer */ 192 if ((error = bus_dmamem_alloc(dmatag, MEMSIZE, PAGE_SIZE, 0, 193 &seg, 1, &rseg, 194 BUS_DMA_NOWAIT | BUS_DMA_24BIT)) != 0) { 195 printf("%s: DMA memory allocation error %d\n", 196 self->dv_xname, error); 197 return; 198 } 199 /* Map DMA buffer into kernel space */ 200 if ((error = bus_dmamem_map(dmatag, &seg, rseg, MEMSIZE, 201 (caddr_t *)&sc->sc_mem, 202 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) { 203 printf("%s: DMA memory map error %d\n", self->dv_xname, error); 204 bus_dmamem_free(lesc->sc_dmatag, &seg, rseg); 205 return; 206 } 207 /* Load DMA buffer */ 208 if ((error = bus_dmamap_load(dmatag, lesc->sc_dmamap, 209 sc->sc_mem, MEMSIZE, NULL, 210 BUS_DMA_NOWAIT)) != 0) { 211 printf("%s: DMA buffer map load error %d\n", 212 self->dv_xname, error); 213 bus_dmamem_unmap(dmatag, (caddr_t)sc->sc_mem, MEMSIZE); 214 bus_dmamem_free(dmatag, &seg, rseg); 215 return; 216 } 217 218 sc->sc_addr = lesc->sc_dmamap->dm_segs[0].ds_addr & 0xffffff; 219 sc->sc_memsize = MEMSIZE; 220 sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON; 221 222 sc->sc_supmedia = lemedia; 223 sc->sc_nsupmedia = NLEMEDIA; 224 sc->sc_defaultmedia = lemedia[0]; 225 226 myetheraddr(sc->sc_enaddr); 227 228 sc->sc_copytodesc = lance_copytobuf_contig; 229 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 230 sc->sc_copytobuf = lance_copytobuf_contig; 231 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 232 sc->sc_zerobuf = lance_zerobuf_contig; 233 234 sc->sc_rdcsr = lerdcsr; 235 sc->sc_wrcsr = lewrcsr; 236 237 am7990_config(&lesc->sc_am7990); 238 239 /* Install interrupt */ 240 (void)bus_intr_establish(lesc->sc_bustag, oba->oba_pri, IPL_NET, 241 am7990_intr, sc); 242 } 243
Indexes created Thu Sep 25 16:09:42 GMT 2025