1 /* $NetBSD: if_gem_pci.c,v 1.13 2002/10/02 16:51:25 thorpej Exp $ */ 2 3 /* 4 * 5 * Copyright (C) 2001 Eduardo Horvath. 6 * All rights reserved. 7 * 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 */ 31 32 /* 33 * PCI bindings for Sun GEM ethernet controllers. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: if_gem_pci.c,v 1.13 2002/10/02 16:51:25 thorpej Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/malloc.h> 42 #include <sys/kernel.h> 43 #include <sys/socket.h> 44 #include <sys/errno.h> 45 #include <sys/device.h> 46 47 #include <machine/endian.h> 48 49 #include <uvm/uvm_extern.h> 50 51 #include <net/if.h> 52 #include <net/if_dl.h> 53 #include <net/if_media.h> 54 #include <net/if_ether.h> 55 56 #if NBPFILTER > 0 57 #include <net/bpf.h> 58 #endif 59 60 #include <machine/bus.h> 61 #include <machine/intr.h> 62 63 #include <dev/mii/mii.h> 64 #include <dev/mii/miivar.h> 65 #include <dev/mii/mii_bitbang.h> 66 67 #include <dev/ic/gemreg.h> 68 #include <dev/ic/gemvar.h> 69 70 #include <dev/pci/pcivar.h> 71 #include <dev/pci/pcireg.h> 72 #include <dev/pci/pcidevs.h> 73 74 /* XXX Should use Properties when that's fleshed out. */ 75 #ifdef macppc 76 #include <dev/ofw/openfirm.h> 77 #endif /* macppc */ 78 79 struct gem_pci_softc { 80 struct gem_softc gsc_gem; /* GEM device */ 81 void *gsc_ih; 82 }; 83 84 int gem_match_pci __P((struct device *, struct cfdata *, void *)); 85 void gem_attach_pci __P((struct device *, struct device *, void *)); 86 87 CFATTACH_DECL(gem_pci, sizeof(struct gem_pci_softc), 88 gem_match_pci, gem_attach_pci, NULL, NULL); 89 90 /* 91 * Attach routines need to be split out to different bus-specific files. 92 */ 93 94 int 95 gem_match_pci(parent, cf, aux) 96 struct device *parent; 97 struct cfdata *cf; 98 void *aux; 99 { 100 struct pci_attach_args *pa = aux; 101 102 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 103 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK || 104 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK)) 105 return (1); 106 107 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 108 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 109 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2 || 110 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC3)) 111 return (1); 112 113 114 return (0); 115 } 116 117 void 118 gem_attach_pci(parent, self, aux) 119 struct device *parent, *self; 120 void *aux; 121 { 122 struct pci_attach_args *pa = aux; 123 struct gem_pci_softc *gsc = (void *)self; 124 struct gem_softc *sc = &gsc->gsc_gem; 125 pci_intr_handle_t ih; 126 const char *intrstr; 127 char devinfo[256]; 128 uint8_t enaddr[ETHER_ADDR_LEN]; 129 130 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 131 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 132 133 sc->sc_dmatag = pa->pa_dmat; 134 135 sc->sc_pci = 1; /* XXX */ 136 137 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 138 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK || 139 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK)) 140 sc->sc_variant = GEM_SUN_GEM; 141 else if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 142 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 143 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2)) 144 sc->sc_variant = GEM_APPLE_GMAC; 145 146 #define PCI_GEM_BASEADDR (PCI_MAPREG_START + 0x00) 147 148 /* XXX Need to check for a 64-bit mem BAR? */ 149 if (pci_mapreg_map(pa, PCI_GEM_BASEADDR, 150 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 151 &sc->sc_bustag, &sc->sc_h, NULL, NULL) != 0) 152 { 153 printf("%s: unable to map device registers\n", 154 sc->sc_dev.dv_xname); 155 return; 156 } 157 158 /* 159 * XXX This should be done with properties, when those are 160 * XXX fleshed out. 161 */ 162 #ifdef __sparc__ 163 { 164 extern void myetheraddr __P((u_char *)); 165 myetheraddr(enaddr); 166 } 167 #endif /* __sparc__ */ 168 #ifdef macppc 169 { 170 int node; 171 172 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 173 if (node == 0) { 174 printf("%s: unable to locate OpenFirmware node\n", 175 sc->sc_dev.dv_xname); 176 return; 177 } 178 179 OF_getprop(node, "local-mac-address", enaddr, sizeof(enaddr)); 180 } 181 #endif /* macppc */ 182 183 if (pci_intr_map(pa, &ih) != 0) { 184 printf("%s: unable to map interrupt\n", sc->sc_dev.dv_xname); 185 return; 186 } 187 intrstr = pci_intr_string(pa->pa_pc, ih); 188 gsc->gsc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, gem_intr, sc); 189 if (gsc->gsc_ih == NULL) { 190 printf("%s: unable to establish interrupt", 191 sc->sc_dev.dv_xname); 192 if (intrstr != NULL) 193 printf(" at %s", intrstr); 194 printf("\n"); 195 return; 196 } 197 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 198 199 /* Finish off the attach. */ 200 gem_attach(sc, enaddr); 201 } 202