1 /* $OpenBSD: if_lc_isa.c,v 1.11 2014/08/11 12:45:45 mpi 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 #include <netinet/in.h> 54 #include <netinet/if_ether.h> 55 56 #if NBPFILTER > 0 57 #include <net/bpf.h> 58 #endif 59 60 #include <machine/cpu.h> 61 #include <machine/bus.h> 62 #include <machine/intr.h> 63 64 #include <dev/ic/lemacreg.h> 65 #include <dev/ic/lemacvar.h> 66 67 #include <dev/isa/isavar.h> 68 69 extern struct cfdriver lc_cd; 70 71 int lemac_isa_find(struct lemac_softc *, struct isa_attach_args *, 72 int); 73 int lemac_isa_probe(struct device *, void *, void *); 74 void lemac_isa_attach(struct device *, struct device *, void *); 75 76 struct cfattach lc_isa_ca = { 77 sizeof(struct lemac_softc), lemac_isa_probe, lemac_isa_attach 78 }; 79 80 int 81 lemac_isa_find(sc, ia, attach) 82 struct lemac_softc *sc; 83 struct isa_attach_args *ia; 84 int attach; 85 { 86 bus_addr_t maddr; 87 bus_size_t msize; 88 int rv = 0, irq; 89 90 /* 91 * Disallow wildcarded i/o addresses. 92 */ 93 if (ia->ia_iobase == IOBASEUNK) 94 return 0; 95 96 /* 97 * Make sure this is a valid LEMAC address. 98 */ 99 if (ia->ia_iobase & (LEMAC_IOSIZE - 1)) 100 return 0; 101 102 sc->sc_iot = ia->ia_iot; 103 104 /* 105 * Map the LEMAC's port space for the probe sequence. 106 */ 107 ia->ia_iosize = LEMAC_IOSIZE; 108 109 if (bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0, 110 &sc->sc_ioh)) { 111 if (attach) 112 printf(": can't map i/o space\n"); 113 return (0); 114 } 115 116 /* 117 * Read the Ethernet address from the EEPROM. 118 * It must start with one of the DEC OUIs and pass the 119 * DEC ethernet checksum test. 120 */ 121 if (lemac_port_check(sc->sc_iot, sc->sc_ioh) == 0) 122 goto outio; 123 124 /* 125 * Get information about memory space and attempt to map it. 126 */ 127 lemac_info_get(sc->sc_iot, sc->sc_ioh, &maddr, &msize, &irq); 128 129 if (ia->ia_maddr != maddr && ia->ia_maddr != MADDRUNK) 130 goto outio; 131 132 if (maddr != 0 && msize != 0) { 133 sc->sc_memt = ia->ia_memt; 134 if (bus_space_map(ia->ia_memt, maddr, msize, 0, 135 &sc->sc_memh)) { 136 if (attach) 137 printf(": can't map mem space\n"); 138 goto outio; 139 } 140 } 141 142 /* 143 * Double-check IRQ configuration. 144 */ 145 if (ia->ia_irq != irq && ia->ia_irq != IRQUNK) 146 printf("%s: overriding IRQ %d to %d\n", sc->sc_dv.dv_xname, 147 ia->ia_irq, irq); 148 149 if (attach) { 150 lemac_ifattach(sc); 151 152 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, IST_EDGE, 153 IPL_NET, lemac_intr, sc, sc->sc_dv.dv_xname); 154 } 155 156 /* 157 * I guess we've found one. 158 */ 159 rv = 1; 160 161 ia->ia_maddr = maddr; 162 ia->ia_msize = msize; 163 ia->ia_irq = irq; 164 165 if (maddr != 0 && msize != 0 && (rv == 0 || !attach)) 166 bus_space_unmap(sc->sc_memt, sc->sc_memh, msize); 167 outio: 168 if (rv == 0 || !attach) 169 bus_space_unmap(sc->sc_iot, sc->sc_ioh, LEMAC_IOSIZE); 170 return (rv); 171 } 172 173 int 174 lemac_isa_probe(parent, match, aux) 175 struct device *parent; 176 void *match; 177 void *aux; 178 { 179 struct isa_attach_args *ia = aux; 180 struct cfdata *cf = ((struct device *)match)->dv_cfdata; 181 struct lemac_softc sc; 182 183 snprintf(sc.sc_dv.dv_xname, sizeof sc.sc_dv.dv_xname, "%s%d", 184 lc_cd.cd_name, cf->cf_unit); 185 186 return (lemac_isa_find(&sc, ia, 0)); 187 } 188 189 void 190 lemac_isa_attach(parent, self, aux) 191 struct device *parent; 192 struct device *self; 193 void *aux; 194 { 195 struct lemac_softc *sc = (void *)self; 196 struct isa_attach_args *ia = aux; 197 198 lemac_isa_find(sc, ia, 1); 199 } 200