1 /* $NetBSD: if_cs_ofisa.c,v 1.20 2009/03/14 21:04:21 dsl 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 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: if_cs_ofisa.c,v 1.20 2009/03/14 21:04:21 dsl Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/socket.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 42 #include "rnd.h" 43 #if NRND > 0 44 #include <sys/rnd.h> 45 #endif 46 47 #include <net/if.h> 48 #include <net/if_ether.h> 49 #include <net/if_media.h> 50 #ifdef INET 51 #include <netinet/in.h> 52 #include <netinet/if_inarp.h> 53 #endif 54 55 #include <sys/bus.h> 56 #include <sys/intr.h> 57 58 #include <dev/ofw/openfirm.h> 59 #include <dev/isa/isavar.h> 60 #include <dev/ofisa/ofisavar.h> 61 62 #include <dev/ic/cs89x0reg.h> 63 #include <dev/ic/cs89x0var.h> 64 #include <dev/isa/cs89x0isavar.h> 65 66 int cs_ofisa_match(struct device *, struct cfdata *, void *); 67 void cs_ofisa_attach(struct device *, struct device *, void *); 68 69 CFATTACH_DECL(cs_ofisa, sizeof(struct cs_softc_isa), 70 cs_ofisa_match, cs_ofisa_attach, NULL, NULL); 71 72 int 73 cs_ofisa_match(struct device *parent, struct cfdata *cf, void *aux) 74 { 75 struct ofisa_attach_args *aa = aux; 76 static const char *const compatible_strings[] = { 77 "CRUS,CS8900", 78 /* XXX CS8920, CS8920M? */ 79 /* XXX PNP names? */ 80 NULL, 81 }; 82 int rv = 0; 83 84 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 85 rv = 5; 86 #ifdef _CS_OFISA_MD_MATCH 87 if (rv == 0) 88 rv = cs_ofisa_md_match(parent, cf, aux); 89 #endif 90 return (rv); 91 } 92 93 void 94 cs_ofisa_attach(struct device *parent, struct device *self, void *aux) 95 { 96 struct cs_softc *sc = device_private(self); 97 struct cs_softc_isa *isc = (void *)sc; 98 struct ofisa_attach_args *aa = aux; 99 struct ofisa_reg_desc reg[2]; 100 struct ofisa_intr_desc intr; 101 struct ofisa_dma_desc dma; 102 int i, n, *media, nmedia, defmedia; 103 bus_addr_t io_addr, mem_addr; 104 char *model = NULL; 105 const char *message = NULL; 106 u_int8_t enaddr[6]; 107 108 isc->sc_ic = aa->ic; 109 sc->sc_iot = aa->iot; 110 sc->sc_memt = aa->memt; 111 112 /* 113 * We're living on an OFW. We have to ask the OFW what our 114 * registers and interrupts properties look like. 115 * 116 * We expect: 117 * 118 * 1 i/o register region 119 * 0 or 1 memory region 120 * 1 interrupt 121 * 0 or 1 DMA channel 122 */ 123 124 io_addr = mem_addr = -1; 125 126 n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2); 127 #ifdef _CS_OFISA_MD_REG_FIXUP 128 n = cs_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n); 129 #endif 130 if (n < 1 || n > 2) { 131 printf(": error getting register data\n"); 132 return; 133 } 134 135 for (i = 0; i < n; i++) { 136 if (reg[i].type == OFISA_REG_TYPE_IO) { 137 if (io_addr != (bus_addr_t) -1) { 138 printf(": multiple I/O regions\n"); 139 return; 140 } 141 if (reg[i].len != CS8900_IOSIZE) { 142 printf(": weird register size (%lu, expected %d)\n", 143 (unsigned long)reg[i].len, CS8900_IOSIZE); 144 return; 145 } 146 io_addr = reg[i].addr; 147 } else { 148 if (mem_addr != (bus_addr_t) -1) { 149 printf(": multiple memory regions\n"); 150 return; 151 } 152 if (reg[i].len != CS8900_MEMSIZE) { 153 printf(": weird register size (%lu, expected %d)\n", 154 (unsigned long)reg[i].len, CS8900_MEMSIZE); 155 return; 156 } 157 mem_addr = reg[i].addr; 158 } 159 } 160 161 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 162 #ifdef _CS_OFISA_MD_INTR_FIXUP 163 n = cs_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 164 #endif 165 if (n != 1) { 166 printf(": error getting interrupt data\n"); 167 return; 168 } 169 sc->sc_irq = intr.irq; 170 171 if (CS8900_IRQ_ISVALID(sc->sc_irq) == 0) { 172 printf(": invalid IRQ %d\n", sc->sc_irq); 173 return; 174 } 175 176 isc->sc_drq = -1; 177 n = ofisa_dma_get(aa->oba.oba_phandle, &dma, 1); 178 #ifdef _CS_OFISA_MD_DMA_FIXUP 179 n = cs_ofisa_md_dma_fixup(parent, self, aux, &dma, 1, n); 180 #endif 181 if (n == 1) 182 isc->sc_drq = dma.drq; 183 184 if (io_addr == (bus_addr_t) -1) { 185 printf(": no I/O space\n"); 186 return; 187 } 188 if (bus_space_map(sc->sc_iot, io_addr, CS8900_IOSIZE, 0, 189 &sc->sc_ioh)) { 190 printf(": unable to map register space\n"); 191 return; 192 } 193 194 if (mem_addr != (bus_addr_t) -1) { 195 if (bus_space_map(sc->sc_memt, mem_addr, CS8900_MEMSIZE, 0, 196 &sc->sc_memh)) { 197 message = "unable to map memory space"; 198 } else { 199 sc->sc_cfgflags |= CFGFLG_MEM_MODE; 200 sc->sc_pktpgaddr = mem_addr; 201 } 202 } 203 204 /* Dig MAC address out of the firmware. */ 205 if (OF_getprop(aa->oba.oba_phandle, "mac-address", enaddr, 206 sizeof(enaddr)) < 0) { 207 printf(": unable to get Ethernet address\n"); 208 return; 209 } 210 211 /* Dig media out of the firmware. */ 212 media = of_network_decode_media(aa->oba.oba_phandle, &nmedia, 213 &defmedia); 214 #ifdef _CS_OFISA_MD_MEDIA_FIXUP 215 media = cs_ofisa_md_media_fixup(parent, self, aux, media, &nmedia, 216 &defmedia); 217 #endif 218 if (media == NULL) { 219 printf(": unable to get media information\n"); 220 return; 221 } 222 223 n = OF_getproplen(aa->oba.oba_phandle, "model"); 224 if (n > 0) { 225 model = alloca(n); 226 if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n) 227 model = NULL; /* Safe; alloca is on-stack */ 228 } 229 if (model != NULL) 230 printf(": %s\n", model); 231 else 232 printf("\n"); 233 234 if (message != NULL) 235 printf("%s: %s\n", device_xname(&sc->sc_dev), message); 236 237 if (defmedia == -1) { 238 aprint_error_dev(&sc->sc_dev, "unable to get default media\n"); 239 defmedia = media[0]; /* XXX What to do? */ 240 } 241 242 sc->sc_ih = isa_intr_establish(isc->sc_ic, sc->sc_irq, intr.share, 243 IPL_NET, cs_intr, sc); 244 if (sc->sc_ih == NULL) { 245 aprint_error_dev(&sc->sc_dev, "unable to establish interrupt\n"); 246 return; 247 } 248 249 #ifdef _CS_OFISA_MD_CFGFLAGS_FIXUP 250 sc->sc_cfgflags |= cs_ofisa_md_cfgflags_fixup(parent, self, aux); 251 #endif 252 253 sc->sc_dma_chipinit = cs_isa_dma_chipinit; 254 sc->sc_dma_attach = cs_isa_dma_attach; 255 sc->sc_dma_process_rx = cs_process_rx_dma; 256 257 cs_attach(sc, enaddr, media, nmedia, defmedia); 258 259 /* This is malloc'd. */ 260 free(media, M_DEVBUF); 261 } 262