1 /* $OpenBSD: if_lc_isa.c,v 1.3 2003/04/27 11:22:53 ho Exp $ */ 2 /* $NetBSD: if_lc_isa.c,v 1.10 2001/06/13 10:46:03 wiz Exp $ */ 3 4 /*- 5 * Copyright (c) 1994, 1995, 1997 Matt Thomas <matt@3am-software.com> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * DEC EtherWORKS 3 Ethernet Controllers 30 * 31 * Written by Matt Thomas 32 * 33 * This driver supports the LEMAC (DE203, DE204, and DE205) cards. 34 */ 35 36 #include "bpfilter.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/mbuf.h> 41 #include <sys/socket.h> 42 #include <sys/ioctl.h> 43 #include <sys/errno.h> 44 #include <sys/syslog.h> 45 #include <sys/select.h> 46 #include <sys/device.h> 47 #include <sys/queue.h> 48 49 #include <net/if.h> 50 #include <net/if_dl.h> 51 #include <net/if_media.h> 52 53 #ifdef INET 54 #include <netinet/in.h> 55 #include <netinet/in_systm.h> 56 #include <netinet/in_var.h> 57 #include <netinet/ip.h> 58 #include <netinet/if_ether.h> 59 #endif 60 61 #ifdef NS 62 #include <netns/ns.h> 63 #include <netns/ns_if.h> 64 #endif 65 66 #if NBPFILTER > 0 67 #include <net/bpf.h> 68 #include <net/bpfdesc.h> 69 #endif 70 71 #include <machine/cpu.h> 72 #include <machine/bus.h> 73 #include <machine/intr.h> 74 75 #include <dev/ic/lemacreg.h> 76 #include <dev/ic/lemacvar.h> 77 78 #include <dev/isa/isavar.h> 79 80 extern struct cfdriver lc_cd; 81 82 int lemac_isa_find(struct lemac_softc *, struct isa_attach_args *, 83 int); 84 int lemac_isa_probe(struct device *, void *, void *); 85 void lemac_isa_attach(struct device *, struct device *, void *); 86 87 struct cfattach lc_isa_ca = { 88 sizeof(struct lemac_softc), lemac_isa_probe, lemac_isa_attach 89 }; 90 91 int 92 lemac_isa_find(sc, ia, attach) 93 struct lemac_softc *sc; 94 struct isa_attach_args *ia; 95 int attach; 96 { 97 bus_addr_t maddr; 98 bus_addr_t msize; 99 int rv = 0, irq; 100 101 /* 102 * Disallow wildcarded i/o addresses. 103 */ 104 if (ia->ia_iobase == IOBASEUNK) 105 return 0; 106 107 /* 108 * Make sure this is a valid LEMAC address. 109 */ 110 if (ia->ia_iobase & (LEMAC_IOSIZE - 1)) 111 return 0; 112 113 sc->sc_iot = ia->ia_iot; 114 115 /* 116 * Map the LEMAC's port space for the probe sequence. 117 */ 118 ia->ia_iosize = LEMAC_IOSIZE; 119 120 if (bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0, 121 &sc->sc_ioh)) { 122 if (attach) 123 printf(": can't map i/o space\n"); 124 return (0); 125 } 126 127 /* 128 * Read the Ethernet address from the EEPROM. 129 * It must start with one of the DEC OUIs and pass the 130 * DEC ethernet checksum test. 131 */ 132 if (lemac_port_check(sc->sc_iot, sc->sc_ioh) == 0) 133 goto outio; 134 135 /* 136 * Get information about memory space and attempt to map it. 137 */ 138 lemac_info_get(sc->sc_iot, sc->sc_ioh, &maddr, &msize, &irq); 139 140 if (ia->ia_maddr != maddr && ia->ia_maddr != MADDRUNK) 141 goto outio; 142 143 if (maddr != 0 && msize != 0) { 144 sc->sc_memt = ia->ia_memt; 145 if (bus_space_map(ia->ia_memt, maddr, msize, 0, 146 &sc->sc_memh)) { 147 if (attach) 148 printf(": can't map mem space\n"); 149 goto outio; 150 } 151 } 152 153 /* 154 * Double-check IRQ configuration. 155 */ 156 if (ia->ia_irq != irq && ia->ia_irq != IRQUNK) 157 printf("%s: overriding IRQ %d to %d\n", sc->sc_dv.dv_xname, 158 ia->ia_irq, irq); 159 160 if (attach) { 161 sc->sc_ats = shutdownhook_establish(lemac_shutdown, sc); 162 if (sc->sc_ats == NULL) 163 printf( 164 "\n%s: warning: can't establish shutdown hook\n", 165 sc->sc_dv.dv_xname); 166 167 lemac_ifattach(sc); 168 169 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, IST_EDGE, 170 IPL_NET, lemac_intr, sc, sc->sc_dv.dv_xname); 171 } 172 173 /* 174 * I guess we've found one. 175 */ 176 rv = 1; 177 178 ia->ia_maddr = maddr; 179 ia->ia_msize = msize; 180 ia->ia_irq = irq; 181 182 if (maddr != 0 && msize != 0 && (rv == 0 || !attach)) 183 bus_space_unmap(sc->sc_memt, sc->sc_memh, msize); 184 outio: 185 if (rv == 0 || !attach) 186 bus_space_unmap(sc->sc_iot, sc->sc_ioh, LEMAC_IOSIZE); 187 return (rv); 188 } 189 190 int 191 lemac_isa_probe(parent, match, aux) 192 struct device *parent; 193 void *match; 194 void *aux; 195 { 196 struct isa_attach_args *ia = aux; 197 struct cfdata *cf = match; 198 struct lemac_softc sc; 199 200 snprintf(sc.sc_dv.dv_xname, sizeof sc.sc_dv.dv_xname, "%s%d", 201 lc_cd.cd_name, cf->cf_unit); 202 203 return (lemac_isa_find(&sc, ia, 0)); 204 } 205 206 void 207 lemac_isa_attach(parent, self, aux) 208 struct device *parent; 209 struct device *self; 210 void *aux; 211 { 212 struct lemac_softc *sc = (void *)self; 213 struct isa_attach_args *ia = aux; 214 215 lemac_isa_find(sc, ia, 1); 216 } 217