if_epic_pci.c revision 1.3
1 /* $NetBSD: if_epic_pci.c,v 1.3 1998/07/05 00:51:23 jonathan 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * PCI bus front-end for the Standard Microsystems Corp. 83C170 42 * Ethernet PCI Integrated Controller (EPIC/100) driver. 43 */ 44 45 #include "opt_inet.h" 46 #include "bpfilter.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/mbuf.h> 51 #include <sys/malloc.h> 52 #include <sys/kernel.h> 53 #include <sys/socket.h> 54 #include <sys/ioctl.h> 55 #include <sys/errno.h> 56 #include <sys/device.h> 57 58 #include <net/if.h> 59 #include <net/if_dl.h> 60 #include <net/if_media.h> 61 #include <net/if_ether.h> 62 63 #if NBPFILTER > 0 64 #include <net/bpf.h> 65 #endif 66 67 #ifdef INET 68 #include <netinet/in.h> 69 #include <netinet/if_inarp.h> 70 #endif 71 72 #ifdef NS 73 #include <netns/ns.h> 74 #include <netns/ns_if.h> 75 #endif 76 77 #include <machine/bus.h> 78 #include <machine/intr.h> 79 80 #include <dev/ic/smc83c170reg.h> 81 #include <dev/ic/smc83c170var.h> 82 83 #include <dev/pci/pcivar.h> 84 #include <dev/pci/pcireg.h> 85 #include <dev/pci/pcidevs.h> 86 87 /* 88 * PCI configuration space registers used by the EPIC. 89 */ 90 #define EPIC_PCI_IOBA 0x10 /* i/o mapped base */ 91 #define EPIC_PCI_MMBA 0x14 /* memory mapped base */ 92 93 struct epic_pci_softc { 94 struct epic_softc sc_epic; /* real EPIC softc */ 95 96 /* PCI-specific goo. */ 97 void *sc_ih; /* interrupt handle */ 98 }; 99 100 int epic_pci_match __P((struct device *, struct cfdata *, void *)); 101 void epic_pci_attach __P((struct device *, struct device *, void *)); 102 103 struct cfattach epic_pci_ca = { 104 sizeof(struct epic_pci_softc), epic_pci_match, epic_pci_attach, 105 }; 106 107 int 108 epic_pci_match(parent, match, aux) 109 struct device *parent; 110 struct cfdata *match; 111 void *aux; 112 { 113 struct pci_attach_args *pa = aux; 114 115 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SMC && 116 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SMC_83C170) 117 return (1); 118 119 return (0); 120 } 121 122 void 123 epic_pci_attach(parent, self, aux) 124 struct device *parent, *self; 125 void *aux; 126 { 127 struct epic_pci_softc *psc = (struct epic_pci_softc *)self; 128 struct epic_softc *sc = &psc->sc_epic; 129 struct pci_attach_args *pa = aux; 130 pci_chipset_tag_t pc = pa->pa_pc; 131 pci_intr_handle_t ih; 132 const char *intrstr = NULL; 133 bus_space_tag_t iot, memt; 134 bus_space_handle_t ioh, memh; 135 int ioh_valid, memh_valid; 136 137 /* 138 * Map the device. 139 */ 140 ioh_valid = (pci_mapreg_map(pa, EPIC_PCI_IOBA, 141 PCI_MAPREG_TYPE_IO, 0, 142 &iot, &ioh, NULL, NULL) == 0); 143 memh_valid = (pci_mapreg_map(pa, EPIC_PCI_MMBA, 144 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, 145 &memt, &memh, NULL, NULL) == 0); 146 147 if (memh_valid) { 148 sc->sc_st = memt; 149 sc->sc_sh = memh; 150 } else if (ioh_valid) { 151 sc->sc_st = iot; 152 sc->sc_sh = ioh; 153 } else { 154 printf(": unable to map device registers\n"); 155 return; 156 } 157 158 sc->sc_dmat = pa->pa_dmat; 159 160 printf(": SMC EPIC/100 Fast Ethernet\n"); 161 162 /* 163 * Map and establish our interrupt. 164 */ 165 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 166 pa->pa_intrline, &ih)) { 167 printf("%s: unable to map interrupt\n", sc->sc_dev.dv_xname); 168 return; 169 } 170 intrstr = pci_intr_string(pc, ih); 171 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epic_intr, sc); 172 if (psc->sc_ih == NULL) { 173 printf("%s: unable to establish interrupt", 174 sc->sc_dev.dv_xname); 175 if (intrstr != NULL) 176 printf(" at %s", intrstr); 177 printf("\n"); 178 return; 179 } 180 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 181 182 /* 183 * Finish off the attach. 184 */ 185 epic_attach(sc); 186 } 187
Indexes created Mon Sep 22 21:09:42 GMT 2025