if_hme_pci.c revision 119696
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 1.4 2001/08/27 22:18:49 augustss Exp 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD: head/sys/dev/hme/if_hme_pci.c 119696 2003-09-02 20:24:42Z marcel $"); 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/resource.h> 43#include <sys/socket.h> 44 45#include <machine/bus.h> 46#include <dev/ofw/openfirm.h> 47#include <machine/ofw_machdep.h> 48#include <machine/resource.h> 49 50#include <sys/rman.h> 51 52#include <net/ethernet.h> 53#include <net/if.h> 54#include <net/if_arp.h> 55#include <net/if_dl.h> 56#include <net/if_media.h> 57 58#include <dev/mii/mii.h> 59#include <dev/mii/miivar.h> 60 61#include <dev/pci/pcivar.h> 62#include <dev/pci/pcireg.h> 63 64#include <dev/hme/if_hmereg.h> 65#include <dev/hme/if_hmevar.h> 66 67#include "miibus_if.h" 68 69struct hme_pci_softc { 70 struct hme_softc hsc_hme; /* HME device */ 71 struct resource *hsc_sres; 72 int hsc_srid; 73 struct resource *hsc_ires; 74 int hsc_irid; 75 bus_space_tag_t hsc_memt; 76 bus_space_handle_t hsc_memh; 77 void *hsc_ih; 78}; 79 80static int hme_pci_probe(device_t); 81static int hme_pci_attach(device_t); 82static int hme_pci_detach(device_t); 83static int hme_pci_suspend(device_t); 84static int hme_pci_resume(device_t); 85 86static device_method_t hme_pci_methods[] = { 87 /* Device interface */ 88 DEVMETHOD(device_probe, hme_pci_probe), 89 DEVMETHOD(device_attach, hme_pci_attach), 90 DEVMETHOD(device_detach, hme_pci_detach), 91 DEVMETHOD(device_suspend, hme_pci_suspend), 92 DEVMETHOD(device_resume, hme_pci_resume), 93 /* Can just use the suspend method here. */ 94 DEVMETHOD(device_shutdown, hme_pci_suspend), 95 96 /* bus interface */ 97 DEVMETHOD(bus_print_child, bus_generic_print_child), 98 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 99 100 /* MII interface */ 101 DEVMETHOD(miibus_readreg, hme_mii_readreg), 102 DEVMETHOD(miibus_writereg, hme_mii_writereg), 103 DEVMETHOD(miibus_statchg, hme_mii_statchg), 104 105 { 0, 0 } 106}; 107 108static driver_t hme_pci_driver = { 109 "hme", 110 hme_pci_methods, 111 sizeof(struct hme_pci_softc) 112}; 113 114DRIVER_MODULE(hme, pci, hme_pci_driver, hme_devclass, 0, 0); 115MODULE_DEPEND(hme, pci, 1, 1, 1); 116MODULE_DEPEND(hme, ether, 1, 1, 1); 117 118int 119hme_pci_probe(device_t dev) 120{ 121 122 if (pci_get_vendor(dev) == 0x108e && 123 pci_get_device(dev) == 0x1001) { 124 device_set_desc(dev, "Sun HME 10/100 Ethernet"); 125 return (0); 126 } 127 return (ENXIO); 128} 129 130int 131hme_pci_attach(device_t dev) 132{ 133 struct hme_pci_softc *hsc = device_get_softc(dev); 134 struct hme_softc *sc = &hsc->hsc_hme; 135 int error; 136 137 pci_enable_busmaster(dev); 138 /* 139 * Some Sun HMEs do have their intpin register bogusly set to 0, 140 * although it should be 1. correct that. 141 */ 142 if (pci_get_intpin(dev) == 0) 143 pci_set_intpin(dev, 1); 144 145 sc->sc_pci = 1; 146 sc->sc_dev = dev; 147 148 /* 149 * Map five register banks: 150 * 151 * bank 0: HME SEB registers: +0x0000 152 * bank 1: HME ETX registers: +0x2000 153 * bank 2: HME ERX registers: +0x4000 154 * bank 3: HME MAC registers: +0x6000 155 * bank 4: HME MIF registers: +0x7000 156 * 157 */ 158 hsc->hsc_srid = PCI_HME_BASEADDR; 159 hsc->hsc_sres = bus_alloc_resource(dev, SYS_RES_MEMORY, &hsc->hsc_srid, 160 0, ~0, 1, RF_ACTIVE); 161 if (hsc->hsc_sres == NULL) { 162 device_printf(dev, "could not map device registers\n"); 163 return (ENXIO); 164 } 165 hsc->hsc_irid = 0; 166 hsc->hsc_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &hsc->hsc_irid, 0, 167 ~0, 1, RF_SHAREABLE | RF_ACTIVE); 168 if (hsc->hsc_ires == NULL) { 169 device_printf(dev, "could not allocate interrupt\n"); 170 error = ENXIO; 171 goto fail_sres; 172 } 173 sc->sc_sebt = sc->sc_etxt = sc->sc_erxt = sc->sc_mact = sc->sc_mift = 174 rman_get_bustag(hsc->hsc_sres); 175 sc->sc_sebh = sc->sc_etxh = sc->sc_erxh = sc->sc_mach = sc->sc_mifh = 176 rman_get_bushandle(hsc->hsc_sres); 177 sc->sc_sebo = 0; 178 sc->sc_etxo = 0x2000; 179 sc->sc_erxo = 0x4000; 180 sc->sc_maco = 0x6000; 181 sc->sc_mifo = 0x7000; 182 183 OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr); 184 185 sc->sc_burst = 64; /* XXX */ 186 187 /* 188 * call the main configure 189 */ 190 if ((error = hme_config(sc)) != 0) { 191 device_printf(dev, "could not be configured\n"); 192 goto fail_ires; 193 } 194 195 if ((error = bus_setup_intr(dev, hsc->hsc_ires, INTR_TYPE_NET, hme_intr, 196 sc, &hsc->hsc_ih)) != 0) { 197 device_printf(dev, "couldn't establish interrupt\n"); 198 hme_detach(sc); 199 goto fail_ires; 200 } 201 return (0); 202 203fail_ires: 204 bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires); 205fail_sres: 206 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_srid, hsc->hsc_sres); 207 return (ENXIO); 208} 209 210static int 211hme_pci_detach(device_t dev) 212{ 213 struct hme_pci_softc *hsc = device_get_softc(dev); 214 struct hme_softc *sc = &hsc->hsc_hme; 215 216 hme_detach(sc); 217 218 bus_teardown_intr(dev, hsc->hsc_ires, hsc->hsc_ih); 219 bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires); 220 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_srid, hsc->hsc_sres); 221 return (0); 222} 223 224static int 225hme_pci_suspend(device_t dev) 226{ 227 struct hme_pci_softc *hsc = device_get_softc(dev); 228 struct hme_softc *sc = &hsc->hsc_hme; 229 230 hme_suspend(sc); 231 return (0); 232} 233 234static int 235hme_pci_resume(device_t dev) 236{ 237 struct hme_pci_softc *hsc = device_get_softc(dev); 238 struct hme_softc *sc = &hsc->hsc_hme; 239 240 hme_resume(sc); 241 return (0); 242} 243