if_gem_pci.c revision 1.3
1 /* $NetBSD: if_gem_pci.c,v 1.3 2001/10/18 03:48:48 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/param.h> 37 #include <sys/systm.h> 38 #include <sys/malloc.h> 39 #include <sys/kernel.h> 40 #include <sys/socket.h> 41 #include <sys/errno.h> 42 #include <sys/device.h> 43 44 #include <machine/endian.h> 45 46 #include <uvm/uvm_extern.h> 47 48 #include <net/if.h> 49 #include <net/if_dl.h> 50 #include <net/if_media.h> 51 #include <net/if_ether.h> 52 53 #if NBPFILTER > 0 54 #include <net/bpf.h> 55 #endif 56 57 #include <machine/bus.h> 58 #include <machine/intr.h> 59 60 #include <dev/mii/mii.h> 61 #include <dev/mii/miivar.h> 62 #include <dev/mii/mii_bitbang.h> 63 64 #include <dev/ic/gemreg.h> 65 #include <dev/ic/gemvar.h> 66 67 #include <dev/pci/pcivar.h> 68 #include <dev/pci/pcireg.h> 69 #include <dev/pci/pcidevs.h> 70 71 struct gem_pci_softc { 72 struct gem_softc gsc_gem; /* GEM device */ 73 bus_space_tag_t gsc_memt; 74 bus_space_handle_t gsc_memh; 75 void *gsc_ih; 76 }; 77 78 int gem_match_pci __P((struct device *, struct cfdata *, void *)); 79 void gem_attach_pci __P((struct device *, struct device *, void *)); 80 81 struct cfattach gem_pci_ca = { 82 sizeof(struct gem_pci_softc), gem_match_pci, gem_attach_pci 83 }; 84 85 /* 86 * Attach routines need to be split out to different bus-specific files. 87 */ 88 89 int 90 gem_match_pci(parent, cf, aux) 91 struct device *parent; 92 struct cfdata *cf; 93 void *aux; 94 { 95 struct pci_attach_args *pa = aux; 96 97 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 98 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK || 99 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK)) 100 return (1); 101 102 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 103 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 104 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2)) 105 return (1); 106 107 108 return (0); 109 } 110 111 void 112 gem_attach_pci(parent, self, aux) 113 struct device *parent, *self; 114 void *aux; 115 { 116 struct pci_attach_args *pa = aux; 117 struct gem_pci_softc *gsc = (void *)self; 118 struct gem_softc *sc = &gsc->gsc_gem; 119 pci_intr_handle_t intrhandle; 120 const char *intrstr; 121 char devinfo[256]; 122 123 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 124 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 125 126 sc->sc_dmatag = pa->pa_dmat; 127 128 sc->sc_pci = 1; /* XXXXX should all be done in bus_dma. */ 129 130 #define PCI_GEM_BASEADDR (PCI_MAPREG_START + 0x00) 131 132 /* XXX Need to check for a 64-bit mem BAR? */ 133 if (pci_mapreg_map(pa, PCI_GEM_BASEADDR, 134 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 135 &gsc->gsc_memt, &gsc->gsc_memh, NULL, NULL) != 0) 136 { 137 printf("%s: could not map gem registers\n", 138 sc->sc_dev.dv_xname); 139 return; 140 } 141 142 sc->sc_bustag = gsc->gsc_memt; 143 sc->sc_h = gsc->gsc_memh; 144 145 /* 146 * XXX This should be done with properties, when those are 147 * XXX fleshed out. 148 */ 149 #ifdef __sparc__ 150 { 151 extern void myetheraddr __P((u_char *)); 152 myetheraddr(sc->sc_enaddr); 153 } 154 #endif 155 156 sc->sc_burst = 16; /* XXX */ 157 158 /* 159 * call the main configure 160 */ 161 gem_config(sc); 162 163 if (pci_intr_map(pa, &intrhandle) != 0) { 164 printf("%s: couldn't map interrupt\n", 165 sc->sc_dev.dv_xname); 166 return; /* bus_unmap ? */ 167 } 168 intrstr = pci_intr_string(pa->pa_pc, intrhandle); 169 gsc->gsc_ih = pci_intr_establish(pa->pa_pc, 170 intrhandle, IPL_NET, gem_intr, sc); 171 if (gsc->gsc_ih != NULL) { 172 printf("%s: using %s for interrupt\n", 173 sc->sc_dev.dv_xname, 174 intrstr ? intrstr : "unknown interrupt"); 175 } else { 176 printf("%s: couldn't establish interrupt", 177 sc->sc_dev.dv_xname); 178 if (intrstr != NULL) 179 printf(" at %s", intrstr); 180 printf("\n"); 181 return; 182 } 183 } 184
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