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/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 72 struct 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 81 static int gem_pci_probe(device_t); 82 static int gem_pci_attach(device_t); 83 static int gem_pci_detach(device_t); 84 static int gem_pci_suspend(device_t); 85 static int gem_pci_resume(device_t); 86 87 static 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 }; 108 109 static driver_t gem_pci_driver = { 110 "gem", 111 gem_pci_methods, 112 sizeof(struct gem_pci_softc) 113 }; 114 115 116 DRIVER_MODULE(gem, pci, gem_pci_driver, gem_devclass, 0, 0); 117 MODULE_DEPEND(gem, pci, 1, 1, 1); 118 MODULE_DEPEND(gem, ether, 1, 1, 1); 119 120 struct 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 { 0x0032106b, GEM_APPLE_GMAC, "Apple GMAC3 Ethernet Adaptor" }, 130 { 0, 0, NULL } 131 }; 132 133 /* 134 * Attach routines need to be split out to different bus-specific files. 135 */ 136 static int 137 gem_pci_probe(dev) 138 device_t dev; 139 { 140 int i; 141 u_int32_t devid; 142 struct gem_pci_softc *gsc; 143 144 devid = pci_get_devid(dev); 145 for (i = 0; gem_pci_devlist[i].gpd_desc != NULL; i++) { 146 if (devid == gem_pci_devlist[i].gpd_devid) { 147 device_set_desc(dev, gem_pci_devlist[i].gpd_desc); 148 gsc = device_get_softc(dev); 149 gsc->gsc_gem.sc_variant = 150 gem_pci_devlist[i].gpd_variant; 151 return (0); 152 } 153 } 154 155 return (ENXIO); 156 } 157 158 static int 159 gem_pci_attach(dev) 160 device_t dev; 161 { 162 struct gem_pci_softc *gsc = device_get_softc(dev); 163 struct gem_softc *sc = &gsc->gsc_gem; 164 165 pci_enable_busmaster(dev); 166 167 /* 168 * Some Sun GEMs/ERIs do have their intpin register bogusly set to 0, 169 * although it should be 1. correct that. 170 */ 171 if (pci_get_intpin(dev) == 0) 172 pci_set_intpin(dev, 1); 173 174 sc->sc_dev = dev; 175 sc->sc_pci = 1; /* XXX */ 176 177 gsc->gsc_srid = PCI_GEM_BASEADDR; 178 gsc->gsc_sres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 179 &gsc->gsc_srid, RF_ACTIVE); 180 if (gsc->gsc_sres == NULL) { 181 device_printf(dev, "failed to allocate bus space resource\n"); 182 return (ENXIO); 183 } 184 185 gsc->gsc_irid = 0; 186 gsc->gsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 187 &gsc->gsc_irid, RF_SHAREABLE | RF_ACTIVE); 188 if (gsc->gsc_ires == NULL) { 189 device_printf(dev, "failed to allocate interrupt resource\n"); 190 goto fail_sres; 191 } 192 193 sc->sc_bustag = rman_get_bustag(gsc->gsc_sres); 194 sc->sc_h = rman_get_bushandle(gsc->gsc_sres); 195 196 /* All platform that this driver is used on must provide this. */ 197 OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr); 198 199 /* 200 * call the main configure 201 */ 202 if (gem_attach(sc) != 0) { 203 device_printf(dev, "could not be configured\n"); 204 goto fail_ires; 205 } 206 207 if (bus_setup_intr(dev, gsc->gsc_ires, INTR_TYPE_NET, gem_intr, sc, 208 &gsc->gsc_ih) != 0) { 209 device_printf(dev, "failed to set up interrupt\n"); 210 gem_detach(sc); 211 goto fail_ires; 212 } 213 return (0); 214 215 fail_ires: 216 bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires); 217 fail_sres: 218 bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres); 219 return (ENXIO); 220 } 221 222 static int 223 gem_pci_detach(dev) 224 device_t dev; 225 { 226 struct gem_pci_softc *gsc = device_get_softc(dev); 227 struct gem_softc *sc = &gsc->gsc_gem; 228 229 gem_detach(sc); 230 231 bus_teardown_intr(dev, gsc->gsc_ires, gsc->gsc_ih); 232 bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires); 233 bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres); 234 return (0); 235 } 236 237 static int 238 gem_pci_suspend(dev) 239 device_t dev; 240 { 241 struct gem_pci_softc *gsc = device_get_softc(dev); 242 struct gem_softc *sc = &gsc->gsc_gem; 243 244 gem_suspend(sc); 245 return (0); 246 } 247 248 static int 249 gem_pci_resume(dev) 250 device_t dev; 251 { 252 struct gem_pci_softc *gsc = device_get_softc(dev); 253 struct gem_softc *sc = &gsc->gsc_gem; 254 255 gem_resume(sc); 256 return (0); 257 } 258