1 /* $NetBSD: if_cs_ofisa.c,v 1.32 2021/04/28 03:34:02 thorpej 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 1.32 2021/04/28 03:34:02 thorpej 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/rndsource.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 static const struct device_compatible_entry compat_data[] = { 70 { .compat = "CRUS,CS8900" }, 71 /* XXX CS8920, CS8920M? */ 72 /* XXX PNP names? */ 73 DEVICE_COMPAT_EOL 74 }; 75 76 int 77 cs_ofisa_match(device_t parent, cfdata_t cf, void *aux) 78 { 79 struct ofisa_attach_args *aa = aux; 80 int rv; 81 82 rv = of_compatible_match(aa->oba.oba_phandle, compat_data) ? 5 : 0; 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 const char *message = NULL; 102 u_int8_t enaddr[6]; 103 104 sc->sc_dev = self; 105 isc->sc_ic = aa->ic; 106 sc->sc_iot = aa->iot; 107 sc->sc_memt = aa->memt; 108 109 /* 110 * We're living on an OFW. We have to ask the OFW what our 111 * registers and interrupts properties look like. 112 * 113 * We expect: 114 * 115 * 1 i/o register region 116 * 0 or 1 memory region 117 * 1 interrupt 118 * 0 or 1 DMA channel 119 */ 120 121 io_addr = mem_addr = -1; 122 123 n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2); 124 #ifdef _CS_OFISA_MD_REG_FIXUP 125 n = cs_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n); 126 #endif 127 if (n < 1 || n > 2) { 128 aprint_error(": error getting register data\n"); 129 return; 130 } 131 132 for (i = 0; i < n; i++) { 133 if (reg[i].type == OFISA_REG_TYPE_IO) { 134 if (io_addr != (bus_addr_t) -1) { 135 aprint_error(": multiple I/O regions\n"); 136 return; 137 } 138 if (reg[i].len != CS8900_IOSIZE) { 139 aprint_error(": weird register size (%lu, expected %d)\n", 140 (unsigned long)reg[i].len, CS8900_IOSIZE); 141 return; 142 } 143 io_addr = reg[i].addr; 144 } else { 145 if (mem_addr != (bus_addr_t) -1) { 146 aprint_error(": multiple memory regions\n"); 147 return; 148 } 149 if (reg[i].len != CS8900_MEMSIZE) { 150 aprint_error(": weird register size (%lu, expected %d)\n", 151 (unsigned long)reg[i].len, CS8900_MEMSIZE); 152 return; 153 } 154 mem_addr = reg[i].addr; 155 } 156 } 157 158 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 159 #ifdef _CS_OFISA_MD_INTR_FIXUP 160 n = cs_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 161 #endif 162 if (n != 1) { 163 aprint_error(": error getting interrupt data\n"); 164 return; 165 } 166 sc->sc_irq = intr.irq; 167 168 if (CS8900_IRQ_ISVALID(sc->sc_irq) == 0) { 169 aprint_error(": invalid IRQ %d\n", sc->sc_irq); 170 return; 171 } 172 173 isc->sc_drq = -1; 174 n = ofisa_dma_get(aa->oba.oba_phandle, &dma, 1); 175 #ifdef _CS_OFISA_MD_DMA_FIXUP 176 n = cs_ofisa_md_dma_fixup(parent, self, aux, &dma, 1, n); 177 #endif 178 if (n == 1) 179 isc->sc_drq = dma.drq; 180 181 if (io_addr == (bus_addr_t) -1) { 182 aprint_error(": no I/O space\n"); 183 return; 184 } 185 if (bus_space_map(sc->sc_iot, io_addr, CS8900_IOSIZE, 0, 186 &sc->sc_ioh)) { 187 aprint_error(": unable to map register space\n"); 188 return; 189 } 190 191 if (mem_addr != (bus_addr_t) -1) { 192 if (bus_space_map(sc->sc_memt, mem_addr, CS8900_MEMSIZE, 0, 193 &sc->sc_memh)) { 194 message = "unable to map memory space"; 195 } else { 196 sc->sc_cfgflags |= CFGFLG_MEM_MODE; 197 sc->sc_pktpgaddr = mem_addr; 198 } 199 } 200 201 /* Dig MAC address out of the firmware. */ 202 if (OF_getprop(aa->oba.oba_phandle, "mac-address", enaddr, 203 sizeof(enaddr)) < 0) { 204 aprint_error(": unable to get Ethernet address\n"); 205 return; 206 } 207 208 /* Dig media out of the firmware. */ 209 media = of_network_decode_media(aa->oba.oba_phandle, &nmedia, 210 &defmedia); 211 #ifdef _CS_OFISA_MD_MEDIA_FIXUP 212 media = cs_ofisa_md_media_fixup(parent, self, aux, media, &nmedia, 213 &defmedia); 214 #endif 215 if (media == NULL) { 216 aprint_error(": unable to get media information\n"); 217 return; 218 } 219 220 ofisa_print_model(NULL, aa->oba.oba_phandle); 221 if (message != NULL) 222 aprint_normal_dev(self, "%s\n", message); 223 224 if (defmedia == -1) { 225 aprint_error_dev(self, "unable to get default media\n"); 226 defmedia = media[0]; /* XXX What to do? */ 227 } 228 229 sc->sc_ih = isa_intr_establish(isc->sc_ic, sc->sc_irq, intr.share, 230 IPL_NET, cs_intr, sc); 231 if (sc->sc_ih == NULL) { 232 aprint_error_dev(self, "unable to establish interrupt\n"); 233 return; 234 } 235 236 #ifdef _CS_OFISA_MD_CFGFLAGS_FIXUP 237 sc->sc_cfgflags |= cs_ofisa_md_cfgflags_fixup(parent, self, aux); 238 #endif 239 240 sc->sc_dma_chipinit = cs_isa_dma_chipinit; 241 sc->sc_dma_attach = cs_isa_dma_attach; 242 sc->sc_dma_process_rx = cs_process_rx_dma; 243 244 cs_attach(sc, enaddr, media, nmedia, defmedia); 245 246 /* This is malloc'd. */ 247 free(media, M_DEVBUF); 248 } 249
Indexes created Sat Sep 20 22:09:52 GMT 2025