1 /* $NetBSD: if_gem_pci.c,v 1.17 2004/10/17 21:49:08 heas 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 1.17 2004/10/17 21:49:08 heas 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 #ifdef __sparc__ 79 #include <machine/promlib.h> 80 #endif 81 82 struct gem_pci_softc { 83 struct gem_softc gsc_gem; /* GEM device */ 84 void *gsc_ih; 85 }; 86 87 int gem_match_pci __P((struct device *, struct cfdata *, void *)); 88 void gem_attach_pci __P((struct device *, struct device *, void *)); 89 90 CFATTACH_DECL(gem_pci, sizeof(struct gem_pci_softc), 91 gem_match_pci, gem_attach_pci, NULL, NULL); 92 93 /* 94 * Attach routines need to be split out to different bus-specific files. 95 */ 96 97 int 98 gem_match_pci(parent, cf, aux) 99 struct device *parent; 100 struct cfdata *cf; 101 void *aux; 102 { 103 struct pci_attach_args *pa = aux; 104 105 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 106 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK || 107 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK)) 108 return (1); 109 110 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 111 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 112 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2 || 113 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC3)) 114 return (1); 115 116 117 return (0); 118 } 119 120 void 121 gem_attach_pci(parent, self, aux) 122 struct device *parent, *self; 123 void *aux; 124 { 125 struct pci_attach_args *pa = aux; 126 struct gem_pci_softc *gsc = (void *)self; 127 struct gem_softc *sc = &gsc->gsc_gem; 128 pci_intr_handle_t ih; 129 const char *intrstr; 130 char devinfo[256]; 131 uint8_t enaddr[ETHER_ADDR_LEN]; 132 133 aprint_naive(": Ethernet controller\n"); 134 135 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 136 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, 137 PCI_REVISION(pa->pa_class)); 138 139 sc->sc_dmatag = pa->pa_dmat; 140 141 sc->sc_pci = 1; /* XXX */ 142 143 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 144 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK || 145 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK)) 146 sc->sc_variant = GEM_SUN_GEM; 147 else if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 148 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 149 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2)) 150 sc->sc_variant = GEM_APPLE_GMAC; 151 152 #define PCI_GEM_BASEADDR (PCI_MAPREG_START + 0x00) 153 154 /* XXX Need to check for a 64-bit mem BAR? */ 155 if (pci_mapreg_map(pa, PCI_GEM_BASEADDR, 156 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 157 &sc->sc_bustag, &sc->sc_h, NULL, NULL) != 0) 158 { 159 aprint_error("%s: unable to map device registers\n", 160 sc->sc_dev.dv_xname); 161 return; 162 } 163 164 /* 165 * XXX This should be done with properties, when those are 166 * XXX fleshed out. 167 */ 168 #ifdef __sparc__ 169 { 170 prom_getether(PCITAG_NODE(pa->pa_tag), enaddr); 171 } 172 #endif /* __sparc__ */ 173 #ifdef macppc 174 { 175 int node; 176 177 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 178 if (node == 0) { 179 aprint_error("%s: unable to locate OpenFirmware node\n", 180 sc->sc_dev.dv_xname); 181 return; 182 } 183 184 OF_getprop(node, "local-mac-address", enaddr, sizeof(enaddr)); 185 } 186 #endif /* macppc */ 187 188 if (pci_intr_map(pa, &ih) != 0) { 189 aprint_error("%s: unable to map interrupt\n", 190 sc->sc_dev.dv_xname); 191 return; 192 } 193 intrstr = pci_intr_string(pa->pa_pc, ih); 194 gsc->gsc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, gem_intr, sc); 195 if (gsc->gsc_ih == NULL) { 196 aprint_error("%s: unable to establish interrupt", 197 sc->sc_dev.dv_xname); 198 if (intrstr != NULL) 199 aprint_normal(" at %s", intrstr); 200 aprint_normal("\n"); 201 return; 202 } 203 aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 204 205 /* Finish off the attach. */ 206 gem_attach(sc, enaddr); 207 } 208