1 /* $OpenBSD: if_lc_isa.c,v 1.9 2011/06/20 01:09:25 matthew 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/selinfo.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 #if NBPFILTER > 0 62 #include <net/bpf.h> 63 #endif 64 65 #include <machine/cpu.h> 66 #include <machine/bus.h> 67 #include <machine/intr.h> 68 69 #include <dev/ic/lemacreg.h> 70 #include <dev/ic/lemacvar.h> 71 72 #include <dev/isa/isavar.h> 73 74 extern struct cfdriver lc_cd; 75 76 int lemac_isa_find(struct lemac_softc *, struct isa_attach_args *, 77 int); 78 int lemac_isa_probe(struct device *, void *, void *); 79 void lemac_isa_attach(struct device *, struct device *, void *); 80 81 struct cfattach lc_isa_ca = { 82 sizeof(struct lemac_softc), lemac_isa_probe, lemac_isa_attach 83 }; 84 85 int 86 lemac_isa_find(sc, ia, attach) 87 struct lemac_softc *sc; 88 struct isa_attach_args *ia; 89 int attach; 90 { 91 bus_addr_t maddr; 92 bus_size_t msize; 93 int rv = 0, irq; 94 95 /* 96 * Disallow wildcarded i/o addresses. 97 */ 98 if (ia->ia_iobase == IOBASEUNK) 99 return 0; 100 101 /* 102 * Make sure this is a valid LEMAC address. 103 */ 104 if (ia->ia_iobase & (LEMAC_IOSIZE - 1)) 105 return 0; 106 107 sc->sc_iot = ia->ia_iot; 108 109 /* 110 * Map the LEMAC's port space for the probe sequence. 111 */ 112 ia->ia_iosize = LEMAC_IOSIZE; 113 114 if (bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0, 115 &sc->sc_ioh)) { 116 if (attach) 117 printf(": can't map i/o space\n"); 118 return (0); 119 } 120 121 /* 122 * Read the Ethernet address from the EEPROM. 123 * It must start with one of the DEC OUIs and pass the 124 * DEC ethernet checksum test. 125 */ 126 if (lemac_port_check(sc->sc_iot, sc->sc_ioh) == 0) 127 goto outio; 128 129 /* 130 * Get information about memory space and attempt to map it. 131 */ 132 lemac_info_get(sc->sc_iot, sc->sc_ioh, &maddr, &msize, &irq); 133 134 if (ia->ia_maddr != maddr && ia->ia_maddr != MADDRUNK) 135 goto outio; 136 137 if (maddr != 0 && msize != 0) { 138 sc->sc_memt = ia->ia_memt; 139 if (bus_space_map(ia->ia_memt, maddr, msize, 0, 140 &sc->sc_memh)) { 141 if (attach) 142 printf(": can't map mem space\n"); 143 goto outio; 144 } 145 } 146 147 /* 148 * Double-check IRQ configuration. 149 */ 150 if (ia->ia_irq != irq && ia->ia_irq != IRQUNK) 151 printf("%s: overriding IRQ %d to %d\n", sc->sc_dv.dv_xname, 152 ia->ia_irq, irq); 153 154 if (attach) { 155 lemac_ifattach(sc); 156 157 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, IST_EDGE, 158 IPL_NET, lemac_intr, sc, sc->sc_dv.dv_xname); 159 } 160 161 /* 162 * I guess we've found one. 163 */ 164 rv = 1; 165 166 ia->ia_maddr = maddr; 167 ia->ia_msize = msize; 168 ia->ia_irq = irq; 169 170 if (maddr != 0 && msize != 0 && (rv == 0 || !attach)) 171 bus_space_unmap(sc->sc_memt, sc->sc_memh, msize); 172 outio: 173 if (rv == 0 || !attach) 174 bus_space_unmap(sc->sc_iot, sc->sc_ioh, LEMAC_IOSIZE); 175 return (rv); 176 } 177 178 int 179 lemac_isa_probe(parent, match, aux) 180 struct device *parent; 181 void *match; 182 void *aux; 183 { 184 struct isa_attach_args *ia = aux; 185 struct cfdata *cf = ((struct device *)match)->dv_cfdata; 186 struct lemac_softc sc; 187 188 snprintf(sc.sc_dv.dv_xname, sizeof sc.sc_dv.dv_xname, "%s%d", 189 lc_cd.cd_name, cf->cf_unit); 190 191 return (lemac_isa_find(&sc, ia, 0)); 192 } 193 194 void 195 lemac_isa_attach(parent, self, aux) 196 struct device *parent; 197 struct device *self; 198 void *aux; 199 { 200 struct lemac_softc *sc = (void *)self; 201 struct isa_attach_args *ia = aux; 202 203 lemac_isa_find(sc, ia, 1); 204 } 205