if_gem_pci.c revision 119696
1/* 2 * Copyright (C) 2001 Eduardo Horvath. 3 * All rights reserved. 4 * 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * from: NetBSD: if_gem_pci.c,v 1.7 2001/10/18 15:09:15 thorpej Exp 28 * 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD: head/sys/dev/gem/if_gem_pci.c 119696 2003-09-02 20:24:42Z marcel $"); 33 34/* 35 * PCI bindings for Sun GEM ethernet controllers. 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/bus.h> 41#include <sys/malloc.h> 42#include <sys/kernel.h> 43#include <sys/resource.h> 44#include <sys/socket.h> 45 46#include <machine/endian.h> 47 48#include <net/ethernet.h> 49#include <net/if.h> 50#include <net/if_arp.h> 51#include <net/if_dl.h> 52#include <net/if_media.h> 53 54#include <machine/bus.h> 55#include <machine/resource.h> 56#include <dev/ofw/openfirm.h> 57#include <machine/ofw_machdep.h> 58 59#include <sys/rman.h> 60 61#include <dev/mii/mii.h> 62#include <dev/mii/miivar.h> 63 64#include <dev/gem/if_gemreg.h> 65#include <dev/gem/if_gemvar.h> 66 67#include <dev/pci/pcivar.h> 68#include <dev/pci/pcireg.h> 69 70#include "miibus_if.h" 71 72struct gem_pci_softc { 73 struct gem_softc gsc_gem; /* GEM device */ 74 struct resource *gsc_sres; 75 int gsc_srid; 76 struct resource *gsc_ires; 77 int gsc_irid; 78 void *gsc_ih; 79}; 80 81static int gem_pci_probe(device_t); 82static int gem_pci_attach(device_t); 83static int gem_pci_detach(device_t); 84static int gem_pci_suspend(device_t); 85static int gem_pci_resume(device_t); 86 87static device_method_t gem_pci_methods[] = { 88 /* Device interface */ 89 DEVMETHOD(device_probe, gem_pci_probe), 90 DEVMETHOD(device_attach, gem_pci_attach), 91 DEVMETHOD(device_detach, gem_pci_detach), 92 DEVMETHOD(device_suspend, gem_pci_suspend), 93 DEVMETHOD(device_resume, gem_pci_resume), 94 /* Use the suspend handler here, it is all that is required. */ 95 DEVMETHOD(device_shutdown, gem_pci_suspend), 96 97 /* bus interface */ 98 DEVMETHOD(bus_print_child, bus_generic_print_child), 99 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 100 101 /* MII interface */ 102 DEVMETHOD(miibus_readreg, gem_mii_readreg), 103 DEVMETHOD(miibus_writereg, gem_mii_writereg), 104 DEVMETHOD(miibus_statchg, gem_mii_statchg), 105 106 { 0, 0 } 107}; 108 109static driver_t gem_pci_driver = { 110 "gem", 111 gem_pci_methods, 112 sizeof(struct gem_pci_softc) 113}; 114 115 116DRIVER_MODULE(gem, pci, gem_pci_driver, gem_devclass, 0, 0); 117MODULE_DEPEND(gem, pci, 1, 1, 1); 118MODULE_DEPEND(gem, ether, 1, 1, 1); 119 120struct gem_pci_dev { 121 u_int32_t gpd_devid; 122 int gpd_variant; 123 char *gpd_desc; 124} gem_pci_devlist[] = { 125 { 0x1101108e, GEM_SUN_GEM, "Sun ERI 10/100 Ethernet Adaptor" }, 126 { 0x2bad108e, GEM_SUN_GEM, "Sun GEM Gigabit Ethernet Adaptor" }, 127 { 0x0021106b, GEM_APPLE_GMAC, "Apple GMAC Ethernet Adaptor" }, 128 { 0x0024106b, GEM_APPLE_GMAC, "Apple GMAC2 Ethernet Adaptor" }, 129 { 0, NULL } 130}; 131 132/* 133 * Attach routines need to be split out to different bus-specific files. 134 */ 135static int 136gem_pci_probe(dev) 137 device_t dev; 138{ 139 int i; 140 u_int32_t devid; 141 struct gem_pci_softc *gsc; 142 143 devid = pci_get_devid(dev); 144 for (i = 0; gem_pci_devlist[i].gpd_desc != NULL; i++) { 145 if (devid == gem_pci_devlist[i].gpd_devid) { 146 device_set_desc(dev, gem_pci_devlist[i].gpd_desc); 147 gsc = device_get_softc(dev); 148 gsc->gsc_gem.sc_variant = 149 gem_pci_devlist[i].gpd_variant; 150 return (0); 151 } 152 } 153 154 return (ENXIO); 155} 156 157static int 158gem_pci_attach(dev) 159 device_t dev; 160{ 161 struct gem_pci_softc *gsc = device_get_softc(dev); 162 struct gem_softc *sc = &gsc->gsc_gem; 163 164 pci_enable_busmaster(dev); 165 166 /* 167 * Some Sun GEMs/ERIs do have their intpin register bogusly set to 0, 168 * although it should be 1. correct that. 169 */ 170 if (pci_get_intpin(dev) == 0) 171 pci_set_intpin(dev, 1); 172 173 sc->sc_dev = dev; 174 sc->sc_pci = 1; /* XXX */ 175 176 gsc->gsc_srid = PCI_GEM_BASEADDR; 177 gsc->gsc_sres = bus_alloc_resource(dev, SYS_RES_MEMORY, &gsc->gsc_srid, 178 0, ~0, 1, RF_ACTIVE); 179 if (gsc->gsc_sres == NULL) { 180 device_printf(dev, "failed to allocate bus space resource\n"); 181 return (ENXIO); 182 } 183 184 gsc->gsc_irid = 0; 185 gsc->gsc_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &gsc->gsc_irid, 0, 186 ~0, 1, RF_SHAREABLE | RF_ACTIVE); 187 if (gsc->gsc_ires == NULL) { 188 device_printf(dev, "failed to allocate interrupt resource\n"); 189 goto fail_sres; 190 } 191 192 sc->sc_bustag = rman_get_bustag(gsc->gsc_sres); 193 sc->sc_h = rman_get_bushandle(gsc->gsc_sres); 194 195 /* All platform that this driver is used on must provide this. */ 196 OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr); 197 198 /* 199 * call the main configure 200 */ 201 if (gem_attach(sc) != 0) { 202 device_printf(dev, "could not be configured\n"); 203 goto fail_ires; 204 } 205 206 if (bus_setup_intr(dev, gsc->gsc_ires, INTR_TYPE_NET, gem_intr, sc, 207 &gsc->gsc_ih) != 0) { 208 device_printf(dev, "failed to set up interrupt\n"); 209 gem_detach(sc); 210 goto fail_ires; 211 } 212 return (0); 213 214fail_ires: 215 bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires); 216fail_sres: 217 bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres); 218 return (ENXIO); 219} 220 221static int 222gem_pci_detach(dev) 223 device_t dev; 224{ 225 struct gem_pci_softc *gsc = device_get_softc(dev); 226 struct gem_softc *sc = &gsc->gsc_gem; 227 228 gem_detach(sc); 229 230 bus_teardown_intr(dev, gsc->gsc_ires, gsc->gsc_ih); 231 bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires); 232 bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres); 233 return (0); 234} 235 236static int 237gem_pci_suspend(dev) 238 device_t dev; 239{ 240 struct gem_pci_softc *gsc = device_get_softc(dev); 241 struct gem_softc *sc = &gsc->gsc_gem; 242 243 gem_suspend(sc); 244 return (0); 245} 246 247static int 248gem_pci_resume(dev) 249 device_t dev; 250{ 251 struct gem_pci_softc *gsc = device_get_softc(dev); 252 struct gem_softc *sc = &gsc->gsc_gem; 253 254 gem_resume(sc); 255 return (0); 256} 257