if_epic_pci.c revision 1.2
1 /* $NetBSD: if_epic_pci.c,v 1.2 1998/06/08 06:55:55 thorpej 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 "bpfilter.h" 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/mbuf.h> 50 #include <sys/malloc.h> 51 #include <sys/kernel.h> 52 #include <sys/socket.h> 53 #include <sys/ioctl.h> 54 #include <sys/errno.h> 55 #include <sys/device.h> 56 57 #include <net/if.h> 58 #include <net/if_dl.h> 59 #include <net/if_media.h> 60 #include <net/if_ether.h> 61 62 #if NBPFILTER > 0 63 #include <net/bpf.h> 64 #endif 65 66 #ifdef INET 67 #include <netinet/in.h> 68 #include <netinet/if_inarp.h> 69 #endif 70 71 #ifdef NS 72 #include <netns/ns.h> 73 #include <netns/ns_if.h> 74 #endif 75 76 #include <machine/bus.h> 77 #include <machine/intr.h> 78 79 #include <dev/ic/smc83c170reg.h> 80 #include <dev/ic/smc83c170var.h> 81 82 #include <dev/pci/pcivar.h> 83 #include <dev/pci/pcireg.h> 84 #include <dev/pci/pcidevs.h> 85 86 /* 87 * PCI configuration space registers used by the EPIC. 88 */ 89 #define EPIC_PCI_IOBA 0x10 /* i/o mapped base */ 90 #define EPIC_PCI_MMBA 0x14 /* memory mapped base */ 91 92 struct epic_pci_softc { 93 struct epic_softc sc_epic; /* real EPIC softc */ 94 95 /* PCI-specific goo. */ 96 void *sc_ih; /* interrupt handle */ 97 }; 98 99 int epic_pci_match __P((struct device *, struct cfdata *, void *)); 100 void epic_pci_attach __P((struct device *, struct device *, void *)); 101 102 struct cfattach epic_pci_ca = { 103 sizeof(struct epic_pci_softc), epic_pci_match, epic_pci_attach, 104 }; 105 106 int 107 epic_pci_match(parent, match, aux) 108 struct device *parent; 109 struct cfdata *match; 110 void *aux; 111 { 112 struct pci_attach_args *pa = aux; 113 114 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SMC && 115 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SMC_83C170) 116 return (1); 117 118 return (0); 119 } 120 121 void 122 epic_pci_attach(parent, self, aux) 123 struct device *parent, *self; 124 void *aux; 125 { 126 struct epic_pci_softc *psc = (struct epic_pci_softc *)self; 127 struct epic_softc *sc = &psc->sc_epic; 128 struct pci_attach_args *pa = aux; 129 pci_chipset_tag_t pc = pa->pa_pc; 130 pci_intr_handle_t ih; 131 const char *intrstr = NULL; 132 bus_space_tag_t iot, memt; 133 bus_space_handle_t ioh, memh; 134 int ioh_valid, memh_valid; 135 136 /* 137 * Map the device. 138 */ 139 ioh_valid = (pci_mapreg_map(pa, EPIC_PCI_IOBA, 140 PCI_MAPREG_TYPE_IO, 0, 141 &iot, &ioh, NULL, NULL) == 0); 142 memh_valid = (pci_mapreg_map(pa, EPIC_PCI_MMBA, 143 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, 144 &memt, &memh, NULL, NULL) == 0); 145 146 if (memh_valid) { 147 sc->sc_st = memt; 148 sc->sc_sh = memh; 149 } else if (ioh_valid) { 150 sc->sc_st = iot; 151 sc->sc_sh = ioh; 152 } else { 153 printf(": unable to map device registers\n"); 154 return; 155 } 156 157 sc->sc_dmat = pa->pa_dmat; 158 159 printf(": SMC EPIC/100 Fast Ethernet\n"); 160 161 /* 162 * Map and establish our interrupt. 163 */ 164 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 165 pa->pa_intrline, &ih)) { 166 printf("%s: unable to map interrupt\n", sc->sc_dev.dv_xname); 167 return; 168 } 169 intrstr = pci_intr_string(pc, ih); 170 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epic_intr, sc); 171 if (psc->sc_ih == NULL) { 172 printf("%s: unable to establish interrupt", 173 sc->sc_dev.dv_xname); 174 if (intrstr != NULL) 175 printf(" at %s", intrstr); 176 printf("\n"); 177 return; 178 } 179 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 180 181 /* 182 * Finish off the attach. 183 */ 184 epic_attach(sc); 185 } 186
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