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/lock.h> 44 #include <sys/module.h> 45 #include <sys/mutex.h> 46 #include <sys/resource.h> 47 #include <sys/socket.h> 48 49 #include <machine/endian.h> 50 51 #include <net/ethernet.h> 52 #include <net/if.h> 53 #include <net/if_arp.h> 54 #include <net/if_dl.h> 55 #include <net/if_media.h> 56 57 #include <machine/bus.h> 58 #include <machine/resource.h> 59 #include <dev/ofw/openfirm.h> 60 #include <machine/ofw_machdep.h> 61 62 #include <sys/rman.h> 63 64 #include <dev/mii/mii.h> 65 #include <dev/mii/miivar.h> 66 67 #include <dev/gem/if_gemreg.h> 68 #include <dev/gem/if_gemvar.h> 69 70 #include <dev/pci/pcivar.h> 71 #include <dev/pci/pcireg.h> 72 73 #include "miibus_if.h" 74 75 struct gem_pci_softc { 76 struct gem_softc gsc_gem; /* GEM device */ 77 struct resource *gsc_sres; 78 int gsc_srid; 79 struct resource *gsc_ires; 80 int gsc_irid; 81 void *gsc_ih; 82 }; 83 84 static int gem_pci_probe(device_t); 85 static int gem_pci_attach(device_t); 86 static int gem_pci_detach(device_t); 87 static int gem_pci_suspend(device_t); 88 static int gem_pci_resume(device_t); 89 90 static device_method_t gem_pci_methods[] = { 91 /* Device interface */ 92 DEVMETHOD(device_probe, gem_pci_probe), 93 DEVMETHOD(device_attach, gem_pci_attach), 94 DEVMETHOD(device_detach, gem_pci_detach), 95 DEVMETHOD(device_suspend, gem_pci_suspend), 96 DEVMETHOD(device_resume, gem_pci_resume), 97 /* Use the suspend handler here, it is all that is required. */ 98 DEVMETHOD(device_shutdown, gem_pci_suspend), 99 100 /* bus interface */ 101 DEVMETHOD(bus_print_child, bus_generic_print_child), 102 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 103 104 /* MII interface */ 105 DEVMETHOD(miibus_readreg, gem_mii_readreg), 106 DEVMETHOD(miibus_writereg, gem_mii_writereg), 107 DEVMETHOD(miibus_statchg, gem_mii_statchg), 108 109 { 0, 0 } 110 }; 111 112 static driver_t gem_pci_driver = { 113 "gem", 114 gem_pci_methods, 115 sizeof(struct gem_pci_softc) 116 }; 117 118 119 DRIVER_MODULE(gem, pci, gem_pci_driver, gem_devclass, 0, 0); 120 MODULE_DEPEND(gem, pci, 1, 1, 1); 121 MODULE_DEPEND(gem, ether, 1, 1, 1); 122 123 struct gem_pci_dev { 124 u_int32_t gpd_devid; 125 int gpd_variant; 126 char *gpd_desc; 127 } gem_pci_devlist[] = { 128 { 0x1101108e, GEM_SUN_GEM, "Sun ERI 10/100 Ethernet Adaptor" }, 129 { 0x2bad108e, GEM_SUN_GEM, "Sun GEM Gigabit Ethernet Adaptor" }, 130 { 0x0021106b, GEM_APPLE_GMAC, "Apple GMAC Ethernet Adaptor" }, 131 { 0x0024106b, GEM_APPLE_GMAC, "Apple GMAC2 Ethernet Adaptor" }, 132 { 0x0032106b, GEM_APPLE_GMAC, "Apple GMAC3 Ethernet Adaptor" }, 133 { 0, 0, NULL } 134 }; 135 136 /* 137 * Attach routines need to be split out to different bus-specific files. 138 */ 139 static int 140 gem_pci_probe(dev) 141 device_t dev; 142 { 143 int i; 144 u_int32_t devid; 145 struct gem_pci_softc *gsc; 146 147 devid = pci_get_devid(dev); 148 for (i = 0; gem_pci_devlist[i].gpd_desc != NULL; i++) { 149 if (devid == gem_pci_devlist[i].gpd_devid) { 150 device_set_desc(dev, gem_pci_devlist[i].gpd_desc); 151 gsc = device_get_softc(dev); 152 gsc->gsc_gem.sc_variant = 153 gem_pci_devlist[i].gpd_variant; 154 return (BUS_PROBE_DEFAULT); 155 } 156 } 157 158 return (ENXIO); 159 } 160 161 static int 162 gem_pci_attach(dev) 163 device_t dev; 164 { 165 struct gem_pci_softc *gsc = device_get_softc(dev); 166 struct gem_softc *sc = &gsc->gsc_gem; 167 168 pci_enable_busmaster(dev); 169 170 /* 171 * Some Sun GEMs/ERIs do have their intpin register bogusly set to 0, 172 * although it should be 1. correct that. 173 */ 174 if (pci_get_intpin(dev) == 0) 175 pci_set_intpin(dev, 1); 176 177 sc->sc_dev = dev; 178 sc->sc_pci = 1; /* XXX */ 179 180 GEM_LOCK_INIT(sc, device_get_nameunit(dev)); 181 182 gsc->gsc_srid = PCI_GEM_BASEADDR; 183 gsc->gsc_sres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 184 &gsc->gsc_srid, RF_ACTIVE); 185 if (gsc->gsc_sres == NULL) { 186 device_printf(dev, "failed to allocate bus space resource\n"); 187 goto fail_mtx; 188 } 189 190 gsc->gsc_irid = 0; 191 gsc->gsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 192 &gsc->gsc_irid, RF_SHAREABLE | RF_ACTIVE); 193 if (gsc->gsc_ires == NULL) { 194 device_printf(dev, "failed to allocate interrupt resource\n"); 195 goto fail_sres; 196 } 197 198 sc->sc_bustag = rman_get_bustag(gsc->gsc_sres); 199 sc->sc_h = rman_get_bushandle(gsc->gsc_sres); 200 201 /* All platform that this driver is used on must provide this. */ 202 OF_getetheraddr(dev, sc->sc_enaddr); 203 204 /* 205 * call the main configure 206 */ 207 if (gem_attach(sc) != 0) { 208 device_printf(dev, "could not be configured\n"); 209 goto fail_ires; 210 } 211 212 if (bus_setup_intr(dev, gsc->gsc_ires, INTR_TYPE_NET | INTR_MPSAFE, 213 NULL, gem_intr, sc, &gsc->gsc_ih) != 0) { 214 device_printf(dev, "failed to set up interrupt\n"); 215 gem_detach(sc); 216 goto fail_ires; 217 } 218 return (0); 219 220 fail_ires: 221 bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires); 222 fail_sres: 223 bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres); 224 fail_mtx: 225 GEM_LOCK_DESTROY(sc); 226 return (ENXIO); 227 } 228 229 static int 230 gem_pci_detach(dev) 231 device_t dev; 232 { 233 struct gem_pci_softc *gsc = device_get_softc(dev); 234 struct gem_softc *sc = &gsc->gsc_gem; 235 236 bus_teardown_intr(dev, gsc->gsc_ires, gsc->gsc_ih); 237 gem_detach(sc); 238 bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires); 239 bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres); 240 GEM_LOCK_DESTROY(sc); 241 return (0); 242 } 243 244 static int 245 gem_pci_suspend(dev) 246 device_t dev; 247 { 248 struct gem_pci_softc *gsc = device_get_softc(dev); 249 struct gem_softc *sc = &gsc->gsc_gem; 250 251 gem_suspend(sc); 252 return (0); 253 } 254 255 static int 256 gem_pci_resume(dev) 257 device_t dev; 258 { 259 struct gem_pci_softc *gsc = device_get_softc(dev); 260 struct gem_softc *sc = &gsc->gsc_gem; 261 262 gem_resume(sc); 263 return (0); 264 } 265