if_fpa.c revision 113506
121826Sjoerg/*- 221826Sjoerg * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com> 321826Sjoerg * All rights reserved. 421826Sjoerg * 521826Sjoerg * Redistribution and use in source and binary forms, with or without 621826Sjoerg * modification, are permitted provided that the following conditions 721826Sjoerg * are met: 821826Sjoerg * 1. Redistributions of source code must retain the above copyright 921826Sjoerg * notice, this list of conditions and the following disclaimer. 1021826Sjoerg * 2. The name of the author may not be used to endorse or promote products 1197748Sschweikh * derived from this software without specific prior written permission 1221826Sjoerg * 1321826Sjoerg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1421826Sjoerg * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1521826Sjoerg * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1621826Sjoerg * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 1721826Sjoerg * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 1821826Sjoerg * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 1921826Sjoerg * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2021826Sjoerg * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2121826Sjoerg * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2221826Sjoerg * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2321826Sjoerg * 2450477Speter * $FreeBSD: head/sys/dev/pdq/if_fpa.c 113506 2003-04-15 06:37:30Z mdodd $ 2521826Sjoerg * 2621826Sjoerg */ 2721826Sjoerg 2821826Sjoerg/* 2921826Sjoerg * DEC PDQ FDDI Controller; code for BSD derived operating systems 3021826Sjoerg * 3121826Sjoerg * This module supports the DEC DEFPA PCI FDDI Controller 3221826Sjoerg */ 3321826Sjoerg 3421826Sjoerg#include <sys/param.h> 3593383Smdodd#include <sys/systm.h> 3621826Sjoerg#include <sys/kernel.h> 3721826Sjoerg#include <sys/socket.h> 3821826Sjoerg 3993383Smdodd#include <sys/module.h> 4093383Smdodd#include <sys/bus.h> 4121826Sjoerg 4293383Smdodd#include <machine/bus_memio.h> 4393383Smdodd#include <machine/bus_pio.h> 4470594Speter#include <machine/bus.h> 4570594Speter#include <machine/resource.h> 4693383Smdodd#include <sys/rman.h> 4721826Sjoerg 4893383Smdodd#include <net/if.h> 4993383Smdodd#include <net/if_arp.h> 5093383Smdodd#include <net/if_media.h> 5193383Smdodd#include <net/fddi.h> 5221826Sjoerg 5393383Smdodd#include <dev/pci/pcivar.h> 5493383Smdodd#include <dev/pci/pcireg.h> 5593383Smdodd 5693383Smdodd#include <dev/pdq/pdq_freebsd.h> 5793383Smdodd#include <dev/pdq/pdqreg.h> 5893383Smdodd 5921826Sjoerg#define DEC_VENDORID 0x1011 6021826Sjoerg#define DEFPA_CHIPID 0x000F 6121826Sjoerg 6221826Sjoerg#define DEFPA_LATENCY 0x88 6321826Sjoerg 6421826Sjoerg#define PCI_CFLT 0x0C /* Configuration Latency */ 6521826Sjoerg#define PCI_CBMA 0x10 /* Configuration Base Memory Address */ 6621826Sjoerg#define PCI_CBIO 0x14 /* Configuration Base I/O Address */ 6721826Sjoerg 6893383Smdoddstatic int pdq_pci_probe (device_t); 6993383Smdoddstatic int pdq_pci_attach (device_t); 7093383Smdoddstatic int pdq_pci_detach (device_t); 7193383Smdoddstatic void pdq_pci_shutdown (device_t); 7293383Smdoddstatic void pdq_pci_ifintr (void *); 7393383Smdodd 7470594Speterstatic void 7570594Speterpdq_pci_ifintr(void *arg) 7621826Sjoerg{ 7793383Smdodd device_t dev; 7870594Speter pdq_softc_t *sc; 7921826Sjoerg 8093383Smdodd dev = (device_t)arg; 8193383Smdodd sc = device_get_softc(dev); 8293383Smdodd 8393383Smdodd PDQ_LOCK(sc); 8421826Sjoerg (void) pdq_interrupt(sc->sc_pdq); 8593383Smdodd PDQ_UNLOCK(sc); 8693383Smdodd 8793383Smdodd return; 8821826Sjoerg} 8921826Sjoerg 9021826Sjoerg/* 9170594Speter * This is the PCI configuration support. 9221826Sjoerg */ 9370594Speterstatic int 9470594Speterpdq_pci_probe(device_t dev) 9521826Sjoerg{ 9670594Speter if (pci_get_vendor(dev) == DEC_VENDORID && 9770594Speter pci_get_device(dev) == DEFPA_CHIPID) { 9870594Speter device_set_desc(dev, "Digital DEFPA PCI FDDI Controller"); 9993383Smdodd return (0); 10021826Sjoerg } 10193383Smdodd 10293383Smdodd return (ENXIO); 10321826Sjoerg} 10421826Sjoerg 10521826Sjoergstatic int 10670594Speterpdq_pci_attach(device_t dev) 10721826Sjoerg{ 10870594Speter pdq_softc_t *sc; 10993383Smdodd struct ifnet *ifp; 11093383Smdodd u_int32_t command; 11193383Smdodd int error; 11221826Sjoerg 11370594Speter sc = device_get_softc(dev); 11493383Smdodd ifp = &sc->arpcom.ac_if; 11521826Sjoerg 11693383Smdodd sc->dev = dev; 11793383Smdodd 11893383Smdodd /* 11993383Smdodd * Map control/status registers. 12093383Smdodd */ 12193383Smdodd pci_enable_busmaster(dev); 12293383Smdodd pci_enable_io(dev, SYS_RES_IOPORT); 12393383Smdodd pci_enable_io(dev, SYS_RES_MEMORY); 12493383Smdodd command = pci_read_config(dev, PCIR_COMMAND, 4); 12593383Smdodd 12693383Smdodd if (!(command & PCIM_CMD_PORTEN)) { 12793383Smdodd device_printf(dev, "Failed to enable PCI I/O ports.\n"); 12893383Smdodd error = ENXIO; 12993383Smdodd goto bad; 13021826Sjoerg } 13121826Sjoerg 13293383Smdodd if (!(command & PCIM_CMD_MEMEN)) { 13393383Smdodd device_printf(dev, "Failed to enable PCI memory mapping.\n"); 13493383Smdodd error = ENXIO; 13570594Speter goto bad; 13693383Smdodd } 13721826Sjoerg 13893383Smdodd command = pci_read_config(dev, PCIR_LATTIMER, 1); 13993383Smdodd if (command < DEFPA_LATENCY) { 14093383Smdodd command = DEFPA_LATENCY; 14193383Smdodd pci_write_config(dev, PCIR_LATTIMER, command, 1); 14293383Smdodd } 14393383Smdodd 14493383Smdodd sc->mem_rid = PCI_CBMA; 14593383Smdodd sc->mem_type = SYS_RES_MEMORY; 14693383Smdodd sc->mem = bus_alloc_resource(dev, sc->mem_type, &sc->mem_rid, 14793383Smdodd 0, ~0, 1, RF_ACTIVE); 14893383Smdodd if (!sc->mem) { 14993383Smdodd device_printf(dev, "Unable to allocate I/O space resource.\n"); 15093383Smdodd error = ENXIO; 15170594Speter goto bad; 15293383Smdodd } 15393383Smdodd sc->mem_bsh = rman_get_bushandle(sc->mem); 15493383Smdodd sc->mem_bst = rman_get_bustag(sc->mem); 15593383Smdodd 15693383Smdodd sc->irq_rid = 0; 15793383Smdodd sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid, 15893383Smdodd 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 15993383Smdodd if (!sc->irq) { 16093383Smdodd device_printf(dev, "Unable to allocate interrupt resource.\n"); 16193383Smdodd error = ENXIO; 16270594Speter goto bad; 16393383Smdodd } 16493383Smdodd 16593383Smdodd ifp->if_name = "fpa"; 16693383Smdodd ifp->if_unit = device_get_unit(dev); 16793383Smdodd 16893383Smdodd sc->sc_pdq = pdq_initialize(sc->mem_bst, sc->mem_bsh, 16993383Smdodd ifp->if_name, ifp->if_unit, 17093383Smdodd (void *)sc, PDQ_DEFPA); 17193383Smdodd if (sc->sc_pdq == NULL) { 17293383Smdodd device_printf(dev, "Initialization failed.\n"); 17393383Smdodd error = ENXIO; 17470594Speter goto bad; 17593383Smdodd } 17621826Sjoerg 17793383Smdodd error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, 17893383Smdodd pdq_pci_ifintr, dev, &sc->irq_ih); 17993383Smdodd if (error) { 18093383Smdodd device_printf(dev, "Failed to setup interrupt handler.\n"); 18193383Smdodd error = ENXIO; 18293383Smdodd goto bad; 18393383Smdodd } 18493383Smdodd 18593383Smdodd bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, 18693383Smdodd (caddr_t) sc->arpcom.ac_enaddr, FDDI_ADDR_LEN); 18793383Smdodd pdq_ifattach(sc); 18893383Smdodd 18993383Smdodd return (0); 19070594Speterbad: 19193383Smdodd pdq_free(dev); 19293383Smdodd return (error); 19321826Sjoerg} 19421826Sjoerg 19593383Smdoddstatic int 19693383Smdoddpdq_pci_detach (dev) 19793383Smdodd device_t dev; 19893383Smdodd{ 19993383Smdodd pdq_softc_t *sc; 20093383Smdodd 20193383Smdodd sc = device_get_softc(dev); 20293383Smdodd pdq_ifdetach(sc); 20393383Smdodd 20493383Smdodd return (0); 20593383Smdodd} 20693383Smdodd 20721826Sjoergstatic void 20870594Speterpdq_pci_shutdown(device_t dev) 20921826Sjoerg{ 21070594Speter pdq_softc_t *sc; 21121826Sjoerg 21270594Speter sc = device_get_softc(dev); 21370594Speter pdq_hwreset(sc->sc_pdq); 21493383Smdodd 21593383Smdodd return; 21621826Sjoerg} 21721826Sjoerg 21870594Speterstatic device_method_t pdq_pci_methods[] = { 21970594Speter /* Device interface */ 22070594Speter DEVMETHOD(device_probe, pdq_pci_probe), 22170594Speter DEVMETHOD(device_attach, pdq_pci_attach), 22293383Smdodd DEVMETHOD(device_detach, pdq_pci_detach), 22370594Speter DEVMETHOD(device_shutdown, pdq_pci_shutdown), 22493383Smdodd 22570594Speter { 0, 0 } 22621826Sjoerg}; 22793383Smdodd 22870594Speterstatic driver_t pdq_pci_driver = { 22970594Speter "fpa", 23070594Speter pdq_pci_methods, 23170594Speter sizeof(pdq_softc_t), 23221826Sjoerg}; 23393383Smdodd 234113506SmdoddDRIVER_MODULE(fpa, pci, pdq_pci_driver, pdq_devclass, 0, 0); 235113506SmdoddMODULE_DEPEND(fpa, pci, 1, 1, 1); 236113506SmdoddMODULE_DEPEND(fpa, fddi, 1, 1, 1); 237