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("$FreeBSD$"); 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/module.h> 44 #include <sys/resource.h> 45 #include <sys/socket.h> 46 47 #include <machine/endian.h> 48 49 #include <net/ethernet.h> 50 #include <net/if.h> 51 #include <net/if_arp.h> 52 #include <net/if_dl.h> 53 #include <net/if_media.h> 54 55 #include <machine/bus.h> 56 #include <machine/resource.h> 57 #include <dev/ofw/openfirm.h> 58 #include <machine/ofw_machdep.h> 59 60 #include <sys/rman.h> 61 62 #include <dev/mii/mii.h> 63 #include <dev/mii/miivar.h> 64 65 #include <dev/gem/if_gemreg.h> 66 #include <dev/gem/if_gemvar.h> 67 68 #include <dev/pci/pcivar.h> 69 #include <dev/pci/pcireg.h> 70 71 #include "miibus_if.h" 72 73 struct gem_pci_softc { 74 struct gem_softc gsc_gem; /* GEM device */ 75 struct resource *gsc_sres; 76 int gsc_srid; 77 struct resource *gsc_ires; 78 int gsc_irid; 79 void *gsc_ih; 80 }; 81 82 static int gem_pci_probe(device_t); 83 static int gem_pci_attach(device_t); 84 static int gem_pci_detach(device_t); 85 static int gem_pci_suspend(device_t); 86 static int gem_pci_resume(device_t); 87 88 static device_method_t gem_pci_methods[] = { 89 /* Device interface */ 90 DEVMETHOD(device_probe, gem_pci_probe), 91 DEVMETHOD(device_attach, gem_pci_attach), 92 DEVMETHOD(device_detach, gem_pci_detach), 93 DEVMETHOD(device_suspend, gem_pci_suspend), 94 DEVMETHOD(device_resume, gem_pci_resume), 95 /* Use the suspend handler here, it is all that is required. */ 96 DEVMETHOD(device_shutdown, gem_pci_suspend), 97 98 /* bus interface */ 99 DEVMETHOD(bus_print_child, bus_generic_print_child), 100 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 101 102 /* MII interface */ 103 DEVMETHOD(miibus_readreg, gem_mii_readreg), 104 DEVMETHOD(miibus_writereg, gem_mii_writereg), 105 DEVMETHOD(miibus_statchg, gem_mii_statchg), 106 107 { 0, 0 } 108 }; 109 110 static driver_t gem_pci_driver = { 111 "gem", 112 gem_pci_methods, 113 sizeof(struct gem_pci_softc) 114 }; 115 116 117 DRIVER_MODULE(gem, pci, gem_pci_driver, gem_devclass, 0, 0); 118 MODULE_DEPEND(gem, pci, 1, 1, 1); 119 MODULE_DEPEND(gem, ether, 1, 1, 1); 120 121 struct gem_pci_dev { 122 u_int32_t gpd_devid; 123 int gpd_variant; 124 char *gpd_desc; 125 } gem_pci_devlist[] = { 126 { 0x1101108e, GEM_SUN_GEM, "Sun ERI 10/100 Ethernet Adaptor" }, 127 { 0x2bad108e, GEM_SUN_GEM, "Sun GEM Gigabit Ethernet Adaptor" }, 128 { 0x0021106b, GEM_APPLE_GMAC, "Apple GMAC Ethernet Adaptor" }, 129 { 0x0024106b, GEM_APPLE_GMAC, "Apple GMAC2 Ethernet Adaptor" }, 130 { 0x0032106b, GEM_APPLE_GMAC, "Apple GMAC3 Ethernet Adaptor" }, 131 { 0, 0, NULL } 132 }; 133 134 /* 135 * Attach routines need to be split out to different bus-specific files. 136 */ 137 static int 138 gem_pci_probe(dev) 139 device_t dev; 140 { 141 int i; 142 u_int32_t devid; 143 struct gem_pci_softc *gsc; 144 145 devid = pci_get_devid(dev); 146 for (i = 0; gem_pci_devlist[i].gpd_desc != NULL; i++) { 147 if (devid == gem_pci_devlist[i].gpd_devid) { 148 device_set_desc(dev, gem_pci_devlist[i].gpd_desc); 149 gsc = device_get_softc(dev); 150 gsc->gsc_gem.sc_variant = 151 gem_pci_devlist[i].gpd_variant; 152 return (0); 153 } 154 } 155 156 return (ENXIO); 157 } 158 159 static int 160 gem_pci_attach(dev) 161 device_t dev; 162 { 163 struct gem_pci_softc *gsc = device_get_softc(dev); 164 struct gem_softc *sc = &gsc->gsc_gem; 165 166 pci_enable_busmaster(dev); 167 168 /* 169 * Some Sun GEMs/ERIs do have their intpin register bogusly set to 0, 170 * although it should be 1. correct that. 171 */ 172 if (pci_get_intpin(dev) == 0) 173 pci_set_intpin(dev, 1); 174 175 sc->sc_dev = dev; 176 sc->sc_pci = 1; /* XXX */ 177 178 gsc->gsc_srid = PCI_GEM_BASEADDR; 179 gsc->gsc_sres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 180 &gsc->gsc_srid, RF_ACTIVE); 181 if (gsc->gsc_sres == NULL) { 182 device_printf(dev, "failed to allocate bus space resource\n"); 183 return (ENXIO); 184 } 185 186 gsc->gsc_irid = 0; 187 gsc->gsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 188 &gsc->gsc_irid, RF_SHAREABLE | RF_ACTIVE); 189 if (gsc->gsc_ires == NULL) { 190 device_printf(dev, "failed to allocate interrupt resource\n"); 191 goto fail_sres; 192 } 193 194 sc->sc_bustag = rman_get_bustag(gsc->gsc_sres); 195 sc->sc_h = rman_get_bushandle(gsc->gsc_sres); 196 197 /* All platform that this driver is used on must provide this. */ 198 OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr); 199 200 /* 201 * call the main configure 202 */ 203 if (gem_attach(sc) != 0) { 204 device_printf(dev, "could not be configured\n"); 205 goto fail_ires; 206 } 207 208 if (bus_setup_intr(dev, gsc->gsc_ires, INTR_TYPE_NET, gem_intr, sc, 209 &gsc->gsc_ih) != 0) { 210 device_printf(dev, "failed to set up interrupt\n"); 211 gem_detach(sc); 212 goto fail_ires; 213 } 214 return (0); 215 216 fail_ires: 217 bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires); 218 fail_sres: 219 bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres); 220 return (ENXIO); 221 } 222 223 static int 224 gem_pci_detach(dev) 225 device_t dev; 226 { 227 struct gem_pci_softc *gsc = device_get_softc(dev); 228 struct gem_softc *sc = &gsc->gsc_gem; 229 230 gem_detach(sc); 231 232 bus_teardown_intr(dev, gsc->gsc_ires, gsc->gsc_ih); 233 bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires); 234 bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres); 235 return (0); 236 } 237 238 static int 239 gem_pci_suspend(dev) 240 device_t dev; 241 { 242 struct gem_pci_softc *gsc = device_get_softc(dev); 243 struct gem_softc *sc = &gsc->gsc_gem; 244 245 gem_suspend(sc); 246 return (0); 247 } 248 249 static int 250 gem_pci_resume(dev) 251 device_t dev; 252 { 253 struct gem_pci_softc *gsc = device_get_softc(dev); 254 struct gem_softc *sc = &gsc->gsc_gem; 255 256 gem_resume(sc); 257 return (0); 258 } 259