1 /* $NetBSD: if_cs_ofisa.c,v 1.25 2012/02/02 19:43:04 tls 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 1.25 2012/02/02 19:43:04 tls 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 <sys/rnd.h> 43 44 #include <net/if.h> 45 #include <net/if_ether.h> 46 #include <net/if_media.h> 47 #ifdef INET 48 #include <netinet/in.h> 49 #include <netinet/if_inarp.h> 50 #endif 51 52 #include <sys/bus.h> 53 #include <sys/intr.h> 54 55 #include <dev/ofw/openfirm.h> 56 #include <dev/isa/isavar.h> 57 #include <dev/ofisa/ofisavar.h> 58 59 #include <dev/ic/cs89x0reg.h> 60 #include <dev/ic/cs89x0var.h> 61 #include <dev/isa/cs89x0isavar.h> 62 63 static int cs_ofisa_match(device_t, cfdata_t, void *); 64 static void cs_ofisa_attach(device_t, device_t, void *); 65 66 CFATTACH_DECL_NEW(cs_ofisa, sizeof(struct cs_softc_isa), 67 cs_ofisa_match, cs_ofisa_attach, NULL, NULL); 68 69 int 70 cs_ofisa_match(device_t parent, cfdata_t cf, void *aux) 71 { 72 struct ofisa_attach_args *aa = aux; 73 static const char *const compatible_strings[] = { 74 "CRUS,CS8900", 75 /* XXX CS8920, CS8920M? */ 76 /* XXX PNP names? */ 77 NULL, 78 }; 79 int rv = 0; 80 81 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 82 rv = 5; 83 #ifdef _CS_OFISA_MD_MATCH 84 if (rv == 0) 85 rv = cs_ofisa_md_match(parent, cf, aux); 86 #endif 87 return (rv); 88 } 89 90 void 91 cs_ofisa_attach(device_t parent, device_t self, void *aux) 92 { 93 struct cs_softc_isa *isc = device_private(self); 94 struct cs_softc *sc = &isc->sc_cs; 95 struct ofisa_attach_args *aa = aux; 96 struct ofisa_reg_desc reg[2]; 97 struct ofisa_intr_desc intr; 98 struct ofisa_dma_desc dma; 99 int i, n, *media, nmedia, defmedia; 100 bus_addr_t io_addr, mem_addr; 101 char *model = NULL; 102 const char *message = NULL; 103 u_int8_t enaddr[6]; 104 105 sc->sc_dev = self; 106 isc->sc_ic = aa->ic; 107 sc->sc_iot = aa->iot; 108 sc->sc_memt = aa->memt; 109 110 /* 111 * We're living on an OFW. We have to ask the OFW what our 112 * registers and interrupts properties look like. 113 * 114 * We expect: 115 * 116 * 1 i/o register region 117 * 0 or 1 memory region 118 * 1 interrupt 119 * 0 or 1 DMA channel 120 */ 121 122 io_addr = mem_addr = -1; 123 124 n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2); 125 #ifdef _CS_OFISA_MD_REG_FIXUP 126 n = cs_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n); 127 #endif 128 if (n < 1 || n > 2) { 129 printf(": error getting register data\n"); 130 return; 131 } 132 133 for (i = 0; i < n; i++) { 134 if (reg[i].type == OFISA_REG_TYPE_IO) { 135 if (io_addr != (bus_addr_t) -1) { 136 printf(": multiple I/O regions\n"); 137 return; 138 } 139 if (reg[i].len != CS8900_IOSIZE) { 140 printf(": weird register size (%lu, expected %d)\n", 141 (unsigned long)reg[i].len, CS8900_IOSIZE); 142 return; 143 } 144 io_addr = reg[i].addr; 145 } else { 146 if (mem_addr != (bus_addr_t) -1) { 147 printf(": multiple memory regions\n"); 148 return; 149 } 150 if (reg[i].len != CS8900_MEMSIZE) { 151 printf(": weird register size (%lu, expected %d)\n", 152 (unsigned long)reg[i].len, CS8900_MEMSIZE); 153 return; 154 } 155 mem_addr = reg[i].addr; 156 } 157 } 158 159 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 160 #ifdef _CS_OFISA_MD_INTR_FIXUP 161 n = cs_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 162 #endif 163 if (n != 1) { 164 printf(": error getting interrupt data\n"); 165 return; 166 } 167 sc->sc_irq = intr.irq; 168 169 if (CS8900_IRQ_ISVALID(sc->sc_irq) == 0) { 170 printf(": invalid IRQ %d\n", sc->sc_irq); 171 return; 172 } 173 174 isc->sc_drq = -1; 175 n = ofisa_dma_get(aa->oba.oba_phandle, &dma, 1); 176 #ifdef _CS_OFISA_MD_DMA_FIXUP 177 n = cs_ofisa_md_dma_fixup(parent, self, aux, &dma, 1, n); 178 #endif 179 if (n == 1) 180 isc->sc_drq = dma.drq; 181 182 if (io_addr == (bus_addr_t) -1) { 183 printf(": no I/O space\n"); 184 return; 185 } 186 if (bus_space_map(sc->sc_iot, io_addr, CS8900_IOSIZE, 0, 187 &sc->sc_ioh)) { 188 printf(": unable to map register space\n"); 189 return; 190 } 191 192 if (mem_addr != (bus_addr_t) -1) { 193 if (bus_space_map(sc->sc_memt, mem_addr, CS8900_MEMSIZE, 0, 194 &sc->sc_memh)) { 195 message = "unable to map memory space"; 196 } else { 197 sc->sc_cfgflags |= CFGFLG_MEM_MODE; 198 sc->sc_pktpgaddr = mem_addr; 199 } 200 } 201 202 /* Dig MAC address out of the firmware. */ 203 if (OF_getprop(aa->oba.oba_phandle, "mac-address", enaddr, 204 sizeof(enaddr)) < 0) { 205 printf(": unable to get Ethernet address\n"); 206 return; 207 } 208 209 /* Dig media out of the firmware. */ 210 media = of_network_decode_media(aa->oba.oba_phandle, &nmedia, 211 &defmedia); 212 #ifdef _CS_OFISA_MD_MEDIA_FIXUP 213 media = cs_ofisa_md_media_fixup(parent, self, aux, media, &nmedia, 214 &defmedia); 215 #endif 216 if (media == NULL) { 217 printf(": unable to get media information\n"); 218 return; 219 } 220 221 n = OF_getproplen(aa->oba.oba_phandle, "model"); 222 if (n > 0) { 223 model = alloca(n); 224 if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n) 225 model = NULL; /* Safe; alloca is on-stack */ 226 } 227 if (model != NULL) 228 printf(": %s\n", model); 229 else 230 printf("\n"); 231 232 if (message != NULL) 233 printf("%s: %s\n", device_xname(self), message); 234 235 if (defmedia == -1) { 236 aprint_error_dev(self, "unable to get default media\n"); 237 defmedia = media[0]; /* XXX What to do? */ 238 } 239 240 sc->sc_ih = isa_intr_establish(isc->sc_ic, sc->sc_irq, intr.share, 241 IPL_NET, cs_intr, sc); 242 if (sc->sc_ih == NULL) { 243 aprint_error_dev(self, "unable to establish interrupt\n"); 244 return; 245 } 246 247 #ifdef _CS_OFISA_MD_CFGFLAGS_FIXUP 248 sc->sc_cfgflags |= cs_ofisa_md_cfgflags_fixup(parent, self, aux); 249 #endif 250 251 sc->sc_dma_chipinit = cs_isa_dma_chipinit; 252 sc->sc_dma_attach = cs_isa_dma_attach; 253 sc->sc_dma_process_rx = cs_process_rx_dma; 254 255 cs_attach(sc, enaddr, media, nmedia, defmedia); 256 257 /* This is malloc'd. */ 258 free(media, M_DEVBUF); 259 } 260