FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/if_an_pci.c

     /*      $NetBSD: if_an_pci.c,v 1.13 2004/01/29 16:57:29 martin Exp $    */
     
     /*
      * Copyright (c) 2000 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Atsushi Onoe.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the NetBSD
     *      Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * PCI bus front-end for the Aironet PC4500/PC4800 Wireless LAN Adapter.
     * Unlike WaveLAN, this adapter attached as PCI device using a PLX 9050
     * PCI to "dumb bus" bridge chip.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: if_an_pci.c,v 1.13 2004/01/29 16:57:29 martin Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h> 
    #include <sys/mbuf.h>   
    #include <sys/malloc.h>
    #include <sys/kernel.h>
    #include <sys/socket.h>
    #include <sys/ioctl.h>
    #include <sys/errno.h>
    #include <sys/device.h>
    #include <sys/callout.h>
    
    #include <machine/endian.h>
     
    #include <net/if.h>
    #include <net/if_dl.h>
    #include <net/if_media.h>
    #include <net/if_ether.h>
    
    #include <net80211/ieee80211_var.h>
    #include <net80211/ieee80211_compat.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <dev/ic/anreg.h>
    #include <dev/ic/anvar.h>
    
    #include <dev/pci/pcivar.h>
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcidevs.h>
    
    #define AN_PCI_PLX_IOBA         0x14    /* i/o base for PLX chip */
    #define AN_PCI_IOBA             0x18    /* i/o base */
    
    struct an_pci_softc {
            struct an_softc sc_an;          /* real "an" softc */
    
            /* PCI-specific goo. */
            void    *sc_ih;                 /* interrupt handle */
    };
    
    int     an_pci_match __P((struct device *, struct cfdata *, void *));
    void    an_pci_attach __P((struct device *, struct device *, void *));
    
    CFATTACH_DECL(an_pci, sizeof(struct an_pci_softc),
        an_pci_match, an_pci_attach, NULL, NULL);
    
    const struct an_pci_product {
            u_int32_t       app_vendor;     /* PCI vendor ID */
            u_int32_t       app_product;    /* PCI product ID */
    } an_pci_products[] = {
            { PCI_VENDOR_AIRONET,           PCI_PRODUCT_AIRONET_PC4xxx },
           { PCI_VENDOR_AIRONET,           PCI_PRODUCT_AIRONET_PC4500 },
           { PCI_VENDOR_AIRONET,           PCI_PRODUCT_AIRONET_PC4800 },
           { PCI_VENDOR_AIRONET,           PCI_PRODUCT_AIRONET_350 },
           { 0,                            0                          }
   };
   
   int
   an_pci_match(struct device *parent, struct cfdata *match, void *aux)
   {
           struct pci_attach_args *pa = aux;
           const struct an_pci_product *app;
   
           for (app = an_pci_products; app->app_vendor != 0; app++) {
                   if (PCI_VENDOR(pa->pa_id) == app->app_vendor &&
                       PCI_PRODUCT(pa->pa_id) == app->app_product)
                           return 1;
           }
           return 0;
   }
   
   void
   an_pci_attach(struct device *parent, struct device *self, void *aux)
   {
           struct pci_attach_args *pa = (struct pci_attach_args *)aux;
           struct an_pci_softc *psc = (struct an_pci_softc *) self;
           struct an_softc *sc = &psc->sc_an;
           char devinfo[256];
           char const *intrstr;
           pci_intr_handle_t ih;
           u_int32_t csr;
   
           aprint_naive(": 802.11 controller\n");
   
           pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
           aprint_normal(": %s\n", devinfo);
   
           /* Map I/O registers */
           if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0,
               &sc->sc_iot, &sc->sc_ioh, NULL, NULL) != 0) {
                   aprint_error("%s: unable to map registers\n", self->dv_xname);
                   return;
           }
   
           /* Enable the device. */
           csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
           pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
                          csr | PCI_COMMAND_MASTER_ENABLE);
   
           /* Map and establish the interrupt. */
           if (pci_intr_map(pa, &ih)) {
                   aprint_error("%s: unable to map interrupt\n", self->dv_xname);
                   return;
           }
           intrstr = pci_intr_string(pa->pa_pc, ih);
           psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc);
           if (psc->sc_ih == NULL) {
                   aprint_error("%s: unable to establish interrupt",
                       self->dv_xname);
                   if (intrstr != NULL)
                           aprint_normal(" at %s", intrstr);
                   aprint_normal("\n");
                   return;
           }
           aprint_normal("%s: interrupting at %s\n", self->dv_xname, intrstr);
           sc->sc_enabled = 1;
   
           if (an_attach(sc) != 0) {
                   aprint_error("%s: failed to attach controller\n",
                       self->dv_xname);
                   pci_intr_disestablish(pa->pa_pc, psc->sc_ih);
                   bus_space_unmap(sc->sc_iot, sc->sc_ioh, AN_IOSIZ);
           }
   }

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