if_hme_pci.c revision 133599
1/*- 2 * Copyright (c) 2000 Matthew R. Green 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * from: NetBSD: if_hme_pci.c,v 1.7 2001/10/05 17:49:43 thorpej Exp 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD: head/sys/dev/hme/if_hme_pci.c 133599 2004-08-12 20:37:02Z marius $"); 33 34/* 35 * PCI front-end device driver for the HME ethernet device. 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/bus.h> 41#include <sys/kernel.h> 42#include <sys/module.h> 43#include <sys/resource.h> 44#include <sys/socket.h> 45 46#include <machine/bus.h> 47#include <dev/ofw/openfirm.h> 48#include <machine/ofw_machdep.h> 49#include <machine/resource.h> 50 51#include <sys/rman.h> 52 53#include <net/ethernet.h> 54#include <net/if.h> 55#include <net/if_arp.h> 56#include <net/if_dl.h> 57#include <net/if_media.h> 58 59#include <dev/mii/mii.h> 60#include <dev/mii/miivar.h> 61 62#include <dev/pci/pcivar.h> 63#include <dev/pci/pcireg.h> 64 65#include <dev/hme/if_hmereg.h> 66#include <dev/hme/if_hmevar.h> 67 68#include "miibus_if.h" 69 70struct hme_pci_softc { 71 struct hme_softc hsc_hme; /* HME device */ 72 struct resource *hsc_sres; 73 int hsc_srid; 74 struct resource *hsc_ires; 75 int hsc_irid; 76 bus_space_tag_t hsc_memt; 77 bus_space_handle_t hsc_memh; 78 void *hsc_ih; 79}; 80 81static int hme_pci_probe(device_t); 82static int hme_pci_attach(device_t); 83static int hme_pci_detach(device_t); 84static int hme_pci_suspend(device_t); 85static int hme_pci_resume(device_t); 86 87static device_method_t hme_pci_methods[] = { 88 /* Device interface */ 89 DEVMETHOD(device_probe, hme_pci_probe), 90 DEVMETHOD(device_attach, hme_pci_attach), 91 DEVMETHOD(device_detach, hme_pci_detach), 92 DEVMETHOD(device_suspend, hme_pci_suspend), 93 DEVMETHOD(device_resume, hme_pci_resume), 94 /* Can just use the suspend method here. */ 95 DEVMETHOD(device_shutdown, hme_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, hme_mii_readreg), 103 DEVMETHOD(miibus_writereg, hme_mii_writereg), 104 DEVMETHOD(miibus_statchg, hme_mii_statchg), 105 106 { 0, 0 } 107}; 108 109static driver_t hme_pci_driver = { 110 "hme", 111 hme_pci_methods, 112 sizeof(struct hme_pci_softc) 113}; 114 115DRIVER_MODULE(hme, pci, hme_pci_driver, hme_devclass, 0, 0); 116MODULE_DEPEND(hme, pci, 1, 1, 1); 117MODULE_DEPEND(hme, ether, 1, 1, 1); 118 119int 120hme_pci_probe(device_t dev) 121{ 122 123 if (pci_get_vendor(dev) == 0x108e && 124 pci_get_device(dev) == 0x1001) { 125 device_set_desc(dev, "Sun HME 10/100 Ethernet"); 126 return (0); 127 } 128 return (ENXIO); 129} 130 131int 132hme_pci_attach(device_t dev) 133{ 134 struct hme_pci_softc *hsc = device_get_softc(dev); 135 struct hme_softc *sc = &hsc->hsc_hme; 136 int error = 0; 137 138 pci_enable_busmaster(dev); 139 /* 140 * Some Sun HMEs do have their intpin register bogusly set to 0, 141 * although it should be 1. correct that. 142 */ 143 if (pci_get_intpin(dev) == 0) 144 pci_set_intpin(dev, 1); 145 146 sc->sc_pci = 1; 147 sc->sc_dev = dev; 148 149 /* 150 * Map five register banks: 151 * 152 * bank 0: HME SEB registers: +0x0000 153 * bank 1: HME ETX registers: +0x2000 154 * bank 2: HME ERX registers: +0x4000 155 * bank 3: HME MAC registers: +0x6000 156 * bank 4: HME MIF registers: +0x7000 157 * 158 */ 159 hsc->hsc_srid = PCI_HME_BASEADDR; 160 hsc->hsc_sres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 161 &hsc->hsc_srid, RF_ACTIVE); 162 if (hsc->hsc_sres == NULL) { 163 device_printf(dev, "could not map device registers\n"); 164 return (ENXIO); 165 } 166 hsc->hsc_irid = 0; 167 hsc->hsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 168 &hsc->hsc_irid, RF_SHAREABLE | RF_ACTIVE); 169 if (hsc->hsc_ires == NULL) { 170 device_printf(dev, "could not allocate interrupt\n"); 171 error = ENXIO; 172 goto fail_sres; 173 } 174 hsc->hsc_memt = rman_get_bustag(hsc->hsc_sres); 175 hsc->hsc_memh = rman_get_bushandle(hsc->hsc_sres); 176 sc->sc_sebt = sc->sc_etxt = sc->sc_erxt = sc->sc_mact = sc->sc_mift = 177 hsc->hsc_memt; 178 bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x0000, 0x1000, 179 &sc->sc_sebh); 180 bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x2000, 0x1000, 181 &sc->sc_etxh); 182 bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x4000, 0x1000, 183 &sc->sc_erxh); 184 bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x6000, 0x1000, 185 &sc->sc_mach); 186 bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x7000, 0x1000, 187 &sc->sc_mifh); 188 189 OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr); 190 191 sc->sc_burst = 64; /* XXX */ 192 193 /* 194 * call the main configure 195 */ 196 if ((error = hme_config(sc)) != 0) { 197 device_printf(dev, "could not be configured\n"); 198 goto fail_ires; 199 } 200 201 if ((error = bus_setup_intr(dev, hsc->hsc_ires, INTR_TYPE_NET, hme_intr, 202 sc, &hsc->hsc_ih)) != 0) { 203 device_printf(dev, "couldn't establish interrupt\n"); 204 hme_detach(sc); 205 goto fail_ires; 206 } 207 return (0); 208 209fail_ires: 210 bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires); 211fail_sres: 212 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_srid, hsc->hsc_sres); 213 return (error); 214} 215 216static int 217hme_pci_detach(device_t dev) 218{ 219 struct hme_pci_softc *hsc = device_get_softc(dev); 220 struct hme_softc *sc = &hsc->hsc_hme; 221 222 hme_detach(sc); 223 224 bus_teardown_intr(dev, hsc->hsc_ires, hsc->hsc_ih); 225 bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires); 226 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_srid, hsc->hsc_sres); 227 return (0); 228} 229 230static int 231hme_pci_suspend(device_t dev) 232{ 233 struct hme_pci_softc *hsc = device_get_softc(dev); 234 struct hme_softc *sc = &hsc->hsc_hme; 235 236 hme_suspend(sc); 237 return (0); 238} 239 240static int 241hme_pci_resume(device_t dev) 242{ 243 struct hme_pci_softc *hsc = device_get_softc(dev); 244 struct hme_softc *sc = &hsc->hsc_hme; 245 246 hme_resume(sc); 247 return (0); 248} 249