The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/dev/pdq/if_fpa.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
    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. The name of the author may not be used to endorse or promote products
   11  *    derived from this software without specific prior written permission
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   15  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   16  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   19  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   20  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   23  *
   24  *
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/6.2/sys/dev/pdq/if_fpa.c 147256 2005-06-10 16:49:24Z brooks $");
   29 
   30 /*
   31  * DEC PDQ FDDI Controller; code for BSD derived operating systems
   32  *
   33  *   This module supports the DEC DEFPA PCI FDDI Controller
   34  */
   35 
   36 #include <sys/param.h>
   37 #include <sys/systm.h>
   38 #include <sys/kernel.h>
   39 #include <sys/socket.h>
   40 
   41 #include <sys/module.h>
   42 #include <sys/bus.h>
   43 
   44 #include <machine/bus.h>
   45 #include <machine/resource.h>
   46 #include <sys/rman.h> 
   47 
   48 #include <net/if.h>
   49 #include <net/if_arp.h>
   50 #include <net/if_media.h> 
   51 #include <net/fddi.h>
   52 
   53 #include <dev/pci/pcivar.h>
   54 #include <dev/pci/pcireg.h>
   55 
   56 #include <dev/pdq/pdq_freebsd.h>
   57 #include <dev/pdq/pdqreg.h>
   58 
   59 #define DEC_VENDORID            0x1011
   60 #define DEFPA_CHIPID            0x000F
   61 
   62 #define DEFPA_LATENCY   0x88
   63 
   64 #define PCI_CFLT        0x0C    /* Configuration Latency */
   65 #define PCI_CBMA        0x10    /* Configuration Base Memory Address */
   66 #define PCI_CBIO        0x14    /* Configuration Base I/O Address */
   67 
   68 static int      pdq_pci_probe           (device_t);
   69 static int      pdq_pci_attach          (device_t);
   70 static int      pdq_pci_detach          (device_t);
   71 static void     pdq_pci_shutdown        (device_t);
   72 static void     pdq_pci_ifintr          (void *);
   73 
   74 static void
   75 pdq_pci_ifintr(void *arg)
   76 {
   77     device_t dev;
   78     pdq_softc_t *sc;
   79 
   80     dev = (device_t)arg;
   81     sc = device_get_softc(dev);
   82 
   83     PDQ_LOCK(sc);
   84     (void) pdq_interrupt(sc->sc_pdq);
   85     PDQ_UNLOCK(sc);
   86 
   87     return;
   88 }
   89 
   90 /*
   91  * This is the PCI configuration support.
   92  */
   93 static int
   94 pdq_pci_probe(device_t dev)
   95 {
   96     if (pci_get_vendor(dev) == DEC_VENDORID &&
   97             pci_get_device(dev) == DEFPA_CHIPID) {
   98         device_set_desc(dev, "Digital DEFPA PCI FDDI Controller");
   99         return (BUS_PROBE_DEFAULT);
  100     }
  101 
  102     return (ENXIO);
  103 }
  104 
  105 static int
  106 pdq_pci_attach(device_t dev)
  107 {
  108     pdq_softc_t *sc;
  109     struct ifnet *ifp;
  110     u_int32_t command;
  111     int error;
  112 
  113     sc = device_get_softc(dev);
  114     ifp = sc->ifp;
  115 
  116     sc->dev = dev;
  117 
  118     /*
  119      * Map control/status registers.
  120      */
  121     pci_enable_busmaster(dev);
  122 
  123     command = pci_read_config(dev, PCIR_LATTIMER, 1);
  124     if (command < DEFPA_LATENCY) {
  125         command = DEFPA_LATENCY;
  126         pci_write_config(dev, PCIR_LATTIMER, command, 1);
  127     }
  128 
  129     sc->mem_rid = PCI_CBMA;
  130     sc->mem_type = SYS_RES_MEMORY;
  131     sc->mem = bus_alloc_resource_any(dev, sc->mem_type, &sc->mem_rid,
  132                                      RF_ACTIVE);
  133     if (!sc->mem) {
  134         device_printf(dev, "Unable to allocate I/O space resource.\n");
  135         error = ENXIO;
  136         goto bad;
  137     }
  138     sc->mem_bsh = rman_get_bushandle(sc->mem);
  139     sc->mem_bst = rman_get_bustag(sc->mem);
  140 
  141     sc->irq_rid = 0;
  142     sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
  143                                      RF_SHAREABLE | RF_ACTIVE);
  144     if (!sc->irq) {
  145         device_printf(dev, "Unable to allocate interrupt resource.\n");
  146         error = ENXIO;
  147         goto bad;
  148     }
  149 
  150     if_initname(ifp, device_get_name(dev), device_get_unit(dev));
  151 
  152     sc->sc_pdq = pdq_initialize(sc->mem_bst, sc->mem_bsh,
  153                                 ifp->if_xname, -1,
  154                                 (void *)sc, PDQ_DEFPA);
  155     if (sc->sc_pdq == NULL) {
  156         device_printf(dev, "Initialization failed.\n");
  157         error = ENXIO;
  158         goto bad;
  159     }
  160 
  161     error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
  162                            pdq_pci_ifintr, dev, &sc->irq_ih);
  163     if (error) {
  164         device_printf(dev, "Failed to setup interrupt handler.\n");
  165         error = ENXIO;
  166         goto bad;
  167     }
  168 
  169     bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes,
  170           (caddr_t) IFP2ENADDR(sc->ifp), FDDI_ADDR_LEN);
  171     pdq_ifattach(sc);
  172 
  173     return (0);
  174 bad:
  175     pdq_free(dev);
  176     return (error);
  177 }
  178 
  179 static int
  180 pdq_pci_detach (dev)
  181     device_t    dev;
  182 {
  183     pdq_softc_t *sc;
  184 
  185     sc = device_get_softc(dev);
  186     pdq_ifdetach(sc);
  187 
  188     return (0);
  189 }
  190 
  191 static void
  192 pdq_pci_shutdown(device_t dev)
  193 {
  194     pdq_softc_t *sc;
  195 
  196     sc = device_get_softc(dev);
  197     pdq_hwreset(sc->sc_pdq);
  198 
  199     return;
  200 }
  201 
  202 static device_method_t pdq_pci_methods[] = {
  203     /* Device interface */
  204     DEVMETHOD(device_probe,     pdq_pci_probe),
  205     DEVMETHOD(device_attach,    pdq_pci_attach),
  206     DEVMETHOD(device_detach,    pdq_pci_detach),
  207     DEVMETHOD(device_shutdown,  pdq_pci_shutdown),
  208 
  209     { 0, 0 }
  210 };
  211 
  212 static driver_t pdq_pci_driver = {
  213     "fpa",
  214     pdq_pci_methods,
  215     sizeof(pdq_softc_t),
  216 };
  217 
  218 DRIVER_MODULE(fpa, pci, pdq_pci_driver, pdq_devclass, 0, 0);
  219 MODULE_DEPEND(fpa, pci, 1, 1, 1);
  220 MODULE_DEPEND(fpa, fddi, 1, 1, 1);

Cache object: a10650bb6a228e28d482b9d201bc43b6


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.