1 /* $OpenBSD: if_sf_pci.c,v 1.16 2024/05/24 06:02:56 jsg Exp $ */ 2 /* $NetBSD: if_sf_pci.c,v 1.10 2006/06/17 23:34:27 christos Exp $ */ 3 4 /*- 5 * Copyright (c) 2001 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe. 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * PCI bus front-end for the Adaptec AIC-6915 (``Starfire'') 35 * 10/100 Ethernet controller. 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 42 #include <net/if.h> 43 44 #include <netinet/in.h> 45 #include <netinet/if_ether.h> 46 47 #include <net/if_media.h> 48 49 #include <machine/bus.h> 50 #include <machine/intr.h> 51 52 #include <dev/mii/miivar.h> 53 54 #include <dev/ic/aic6915.h> 55 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcivar.h> 58 #include <dev/pci/pcidevs.h> 59 60 struct sf_pci_softc { 61 struct sf_softc sc_starfire; /* read Starfire softc */ 62 63 /* PCI-specific goo. */ 64 void *sc_ih; /* interrupt handle */ 65 }; 66 67 int sf_pci_match(struct device *, void *, void *); 68 void sf_pci_attach(struct device *, struct device *, void *); 69 70 const struct cfattach sf_pci_ca = { 71 sizeof(struct sf_pci_softc), sf_pci_match, sf_pci_attach 72 }; 73 74 const struct pci_matchid sf_pci_products[] = { 75 { PCI_VENDOR_ADP, PCI_PRODUCT_ADP_AIC6915 }, 76 }; 77 78 int 79 sf_pci_match(struct device *parent, void *match, void *aux) 80 { 81 return (pci_matchbyid((struct pci_attach_args *)aux, sf_pci_products, 82 nitems(sf_pci_products))); 83 } 84 85 void 86 sf_pci_attach(struct device *parent, struct device *self, void *aux) 87 { 88 struct sf_pci_softc *psc = (void *) self; 89 struct sf_softc *sc = &psc->sc_starfire; 90 struct pci_attach_args *pa = aux; 91 pci_intr_handle_t ih; 92 const char *intrstr = NULL; 93 bus_space_tag_t iot, memt; 94 bus_space_handle_t ioh, memh; 95 int ioh_valid, memh_valid; 96 bus_size_t iosize, memsize; 97 pcireg_t reg; 98 99 pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0); 100 101 /* 102 * Map the device. 103 */ 104 reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, SF_PCI_MEMBA); 105 switch (reg) { 106 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 107 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 108 memh_valid = (pci_mapreg_map(pa, SF_PCI_MEMBA, 109 reg, 0, &memt, &memh, &memsize, NULL, 0) == 0); 110 break; 111 default: 112 memh_valid = 0; 113 } 114 115 ioh_valid = (pci_mapreg_map(pa, 116 (reg == (PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT)) ? 117 SF_PCI_IOBA : SF_PCI_IOBA - 0x04, 118 PCI_MAPREG_TYPE_IO, 0, 119 &iot, &ioh, &iosize, NULL, 0) == 0); 120 121 if (memh_valid) { 122 sc->sc_st = memt; 123 sc->sc_sh = memh; 124 sc->sc_iomapped = 0; 125 } else if (ioh_valid) { 126 sc->sc_st = iot; 127 sc->sc_sh = ioh; 128 sc->sc_iomapped = 1; 129 } else { 130 printf(": unable to map device registers\n"); 131 return; 132 } 133 134 sc->sc_dmat = pa->pa_dmat; 135 136 /* 137 * Map and establish our interrupt. 138 */ 139 if (pci_intr_map(pa, &ih)) { 140 printf(": unable to map interrupt\n"); 141 goto out; 142 } 143 intrstr = pci_intr_string(pa->pa_pc, ih); 144 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, sf_intr, sc, 145 self->dv_xname); 146 if (psc->sc_ih == NULL) { 147 printf(": unable to establish interrupt"); 148 if (intrstr != NULL) 149 printf(" at %s", intrstr); 150 printf("\n"); 151 goto out; 152 } 153 printf(": %s", intrstr); 154 155 /* 156 * Finish off the attach. 157 */ 158 sf_attach(sc); 159 return; 160 161 out: 162 if (ioh_valid) 163 bus_space_unmap(iot, ioh, iosize); 164 if (memh_valid) 165 bus_space_unmap(memt, memh, memsize); 166 } 167