1 /* $OpenBSD: if_lc_isa.c,v 1.10 2013/08/07 01:06:32 bluhm 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/ip.h> 57 #include <netinet/if_ether.h> 58 #endif 59 60 #if NBPFILTER > 0 61 #include <net/bpf.h> 62 #endif 63 64 #include <machine/cpu.h> 65 #include <machine/bus.h> 66 #include <machine/intr.h> 67 68 #include <dev/ic/lemacreg.h> 69 #include <dev/ic/lemacvar.h> 70 71 #include <dev/isa/isavar.h> 72 73 extern struct cfdriver lc_cd; 74 75 int lemac_isa_find(struct lemac_softc *, struct isa_attach_args *, 76 int); 77 int lemac_isa_probe(struct device *, void *, void *); 78 void lemac_isa_attach(struct device *, struct device *, void *); 79 80 struct cfattach lc_isa_ca = { 81 sizeof(struct lemac_softc), lemac_isa_probe, lemac_isa_attach 82 }; 83 84 int 85 lemac_isa_find(sc, ia, attach) 86 struct lemac_softc *sc; 87 struct isa_attach_args *ia; 88 int attach; 89 { 90 bus_addr_t maddr; 91 bus_size_t msize; 92 int rv = 0, irq; 93 94 /* 95 * Disallow wildcarded i/o addresses. 96 */ 97 if (ia->ia_iobase == IOBASEUNK) 98 return 0; 99 100 /* 101 * Make sure this is a valid LEMAC address. 102 */ 103 if (ia->ia_iobase & (LEMAC_IOSIZE - 1)) 104 return 0; 105 106 sc->sc_iot = ia->ia_iot; 107 108 /* 109 * Map the LEMAC's port space for the probe sequence. 110 */ 111 ia->ia_iosize = LEMAC_IOSIZE; 112 113 if (bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0, 114 &sc->sc_ioh)) { 115 if (attach) 116 printf(": can't map i/o space\n"); 117 return (0); 118 } 119 120 /* 121 * Read the Ethernet address from the EEPROM. 122 * It must start with one of the DEC OUIs and pass the 123 * DEC ethernet checksum test. 124 */ 125 if (lemac_port_check(sc->sc_iot, sc->sc_ioh) == 0) 126 goto outio; 127 128 /* 129 * Get information about memory space and attempt to map it. 130 */ 131 lemac_info_get(sc->sc_iot, sc->sc_ioh, &maddr, &msize, &irq); 132 133 if (ia->ia_maddr != maddr && ia->ia_maddr != MADDRUNK) 134 goto outio; 135 136 if (maddr != 0 && msize != 0) { 137 sc->sc_memt = ia->ia_memt; 138 if (bus_space_map(ia->ia_memt, maddr, msize, 0, 139 &sc->sc_memh)) { 140 if (attach) 141 printf(": can't map mem space\n"); 142 goto outio; 143 } 144 } 145 146 /* 147 * Double-check IRQ configuration. 148 */ 149 if (ia->ia_irq != irq && ia->ia_irq != IRQUNK) 150 printf("%s: overriding IRQ %d to %d\n", sc->sc_dv.dv_xname, 151 ia->ia_irq, irq); 152 153 if (attach) { 154 lemac_ifattach(sc); 155 156 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, IST_EDGE, 157 IPL_NET, lemac_intr, sc, sc->sc_dv.dv_xname); 158 } 159 160 /* 161 * I guess we've found one. 162 */ 163 rv = 1; 164 165 ia->ia_maddr = maddr; 166 ia->ia_msize = msize; 167 ia->ia_irq = irq; 168 169 if (maddr != 0 && msize != 0 && (rv == 0 || !attach)) 170 bus_space_unmap(sc->sc_memt, sc->sc_memh, msize); 171 outio: 172 if (rv == 0 || !attach) 173 bus_space_unmap(sc->sc_iot, sc->sc_ioh, LEMAC_IOSIZE); 174 return (rv); 175 } 176 177 int 178 lemac_isa_probe(parent, match, aux) 179 struct device *parent; 180 void *match; 181 void *aux; 182 { 183 struct isa_attach_args *ia = aux; 184 struct cfdata *cf = ((struct device *)match)->dv_cfdata; 185 struct lemac_softc sc; 186 187 snprintf(sc.sc_dv.dv_xname, sizeof sc.sc_dv.dv_xname, "%s%d", 188 lc_cd.cd_name, cf->cf_unit); 189 190 return (lemac_isa_find(&sc, ia, 0)); 191 } 192 193 void 194 lemac_isa_attach(parent, self, aux) 195 struct device *parent; 196 struct device *self; 197 void *aux; 198 { 199 struct lemac_softc *sc = (void *)self; 200 struct isa_attach_args *ia = aux; 201 202 lemac_isa_find(sc, ia, 1); 203 } 204