FreeBSD/Linux Kernel Cross Reference
sys/dev/cardbus/if_fxp_cardbus.c

     /*      $NetBSD: if_fxp_cardbus.c,v 1.17 2002/10/02 16:33:42 thorpej Exp $      */
     
     /*
      * Copyright (c) 1999 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Johan Danielsson.
      *
     * 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.
     */
    
    /*
     * CardBus front-end for the Intel i82557 family of Ethernet chips.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: if_fxp_cardbus.c,v 1.17 2002/10/02 16:33:42 thorpej Exp $");
    
    #include "opt_inet.h"
    #include "opt_ns.h"
    #include "bpfilter.h"
    #include "rnd.h"
    
    #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>
    
    #if NRND > 0
    #include <sys/rnd.h>
    #endif
    
    #include <net/if.h>
    #include <net/if_dl.h>
    #include <net/if_media.h>
    #include <net/if_ether.h>
    
    #include <machine/endian.h>
    
    #if NBPFILTER > 0
    #include <net/bpf.h>
    #endif
    
    #ifdef INET
    #include <netinet/in.h>
    #include <netinet/if_inarp.h>
    #endif
    
    #ifdef NS
    #include <netns/ns.h>
    #include <netns/ns_if.h>
    #endif
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <dev/mii/miivar.h>
    
    #include <dev/ic/i82557reg.h>
    #include <dev/ic/i82557var.h>
    
    #include <dev/pci/pcivar.h>
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcidevs.h>
    
    #include <dev/cardbus/cardbusvar.h>
    #include <dev/cardbus/cardbusdevs.h>
   
   static int fxp_cardbus_match __P((struct device *, struct cfdata *, void *));
   static void fxp_cardbus_attach __P((struct device *, struct device *, void *));
   static int fxp_cardbus_detach __P((struct device * self, int flags));
   static void fxp_cardbus_setup __P((struct fxp_softc * sc));
   static int fxp_cardbus_enable __P((struct fxp_softc * sc));
   static void fxp_cardbus_disable __P((struct fxp_softc * sc));
   
   struct fxp_cardbus_softc {
           struct fxp_softc sc;
           cardbus_devfunc_t ct;
           pcireg_t base0_reg;
           pcireg_t base1_reg;
           bus_size_t size;
   };
   
   CFATTACH_DECL(fxp_cardbus, sizeof(struct fxp_cardbus_softc),
       fxp_cardbus_match, fxp_cardbus_attach, fxp_cardbus_detach, fxp_activate);
   
   #ifdef CBB_DEBUG
   #define DPRINTF(X) printf X
   #else
   #define DPRINTF(X)
   #endif
   
   static int
   fxp_cardbus_match(parent, match, aux)
           struct device *parent;
           struct cfdata *match;
           void   *aux;
   {
           struct cardbus_attach_args *ca = aux;
   
           if (CARDBUS_VENDOR(ca->ca_id) == CARDBUS_VENDOR_INTEL &&
               CARDBUS_PRODUCT(ca->ca_id) == CARDBUS_PRODUCT_INTEL_82557)
                   return (1);
   
           return (0);
   }
   
   static void
   fxp_cardbus_attach(parent, self, aux)
           struct device *parent, *self;
           void *aux;
   {
           static const char thisfunc[] = "fxp_cardbus_attach";
   
           struct fxp_softc *sc = (struct fxp_softc *) self;
           struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) self;
           struct cardbus_attach_args *ca = aux;
           bus_space_tag_t iot, memt;
           bus_space_handle_t ioh, memh;
   
           bus_addr_t adr;
           bus_size_t size;
   
           csc->ct = ca->ca_ct;
   
           /*
            * Map control/status registers.
            */
           if (Cardbus_mapreg_map(csc->ct, CARDBUS_BASE1_REG,
               PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &size) == 0) {
                   csc->base1_reg = adr | 1;
                   sc->sc_st = iot;
                   sc->sc_sh = ioh;
                   csc->size = size;
           } else if (Cardbus_mapreg_map(csc->ct, CARDBUS_BASE0_REG,
               PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
               0, &memt, &memh, &adr, &size) == 0) {
                   csc->base0_reg = adr;
                   sc->sc_st = memt;
                   sc->sc_sh = memh;
                   csc->size = size;
           } else
                   panic("%s: failed to allocate mem and io space", thisfunc);
   
   
           if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1])
                   printf(": %s %s\n", ca->ca_cis.cis1_info[0],
                       ca->ca_cis.cis1_info[1]);
           else
                   printf("\n");
   
           sc->sc_dmat = ca->ca_dmat;
           sc->sc_enable = fxp_cardbus_enable;
           sc->sc_disable = fxp_cardbus_disable;
           sc->sc_enabled = 0;
   
           fxp_enable(sc);
           fxp_attach(sc);
           fxp_disable(sc);
   }
   
   static void
   fxp_cardbus_setup(struct fxp_softc * sc)
   {
           struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) sc;
           struct cardbus_softc *psc =
               (struct cardbus_softc *) sc->sc_dev.dv_parent;
           cardbus_chipset_tag_t cc = psc->sc_cc;
           cardbus_function_tag_t cf = psc->sc_cf;
           pcireg_t command;
   
           cardbustag_t tag = cardbus_make_tag(cc, cf, csc->ct->ct_bus,
               csc->ct->ct_dev, csc->ct->ct_func);
   
           command = Cardbus_conf_read(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG);
           if (csc->base0_reg) {
                   Cardbus_conf_write(csc->ct, tag,
                       CARDBUS_BASE0_REG, csc->base0_reg);
                   (cf->cardbus_ctrl) (cc, CARDBUS_MEM_ENABLE);
                   command |= CARDBUS_COMMAND_MEM_ENABLE |
                       CARDBUS_COMMAND_MASTER_ENABLE;
           } else if (csc->base1_reg) {
                   Cardbus_conf_write(csc->ct, tag,
                       CARDBUS_BASE1_REG, csc->base1_reg);
                   (cf->cardbus_ctrl) (cc, CARDBUS_IO_ENABLE);
                   command |= (CARDBUS_COMMAND_IO_ENABLE |
                       CARDBUS_COMMAND_MASTER_ENABLE);
           }
   
           (cf->cardbus_ctrl) (cc, CARDBUS_BM_ENABLE);
   
           /* enable the card */
           Cardbus_conf_write(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG, command);
   }
   
   static int
   fxp_cardbus_enable(struct fxp_softc * sc)
   {
           struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) sc;
           struct cardbus_softc *psc =
               (struct cardbus_softc *) sc->sc_dev.dv_parent;
           cardbus_chipset_tag_t cc = psc->sc_cc;
           cardbus_function_tag_t cf = psc->sc_cf;
   
           Cardbus_function_enable(csc->ct);
   
           fxp_cardbus_setup(sc);
   
           /* Map and establish the interrupt. */
   
           sc->sc_ih = cardbus_intr_establish(cc, cf, psc->sc_intrline, IPL_NET,
               fxp_intr, sc);
           if (NULL == sc->sc_ih) {
                   printf("%s: couldn't establish interrupt\n",
                       sc->sc_dev.dv_xname);
                   return 1;
           }
   
           printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname,
               psc->sc_intrline);
   
           return 0;
   }
   
   static void
   fxp_cardbus_disable(struct fxp_softc * sc)
   {
           struct cardbus_softc *psc =
               (struct cardbus_softc *) sc->sc_dev.dv_parent;
           cardbus_chipset_tag_t cc = psc->sc_cc;
           cardbus_function_tag_t cf = psc->sc_cf;
   
           /* Remove interrupt handler. */
           cardbus_intr_disestablish(cc, cf, sc->sc_ih);
   
           Cardbus_function_disable(((struct fxp_cardbus_softc *) sc)->ct);
   }
   
   static int
   fxp_cardbus_detach(self, flags)
           struct device *self;
           int flags;
   {
           struct fxp_softc *sc = (struct fxp_softc *) self;
           struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) self;
           struct cardbus_devfunc *ct = csc->ct;
           int rv, reg;
   
   #ifdef DIAGNOSTIC
           if (ct == NULL)
                   panic("%s: data structure lacks", sc->sc_dev.dv_xname);
   #endif
   
           rv = fxp_detach(sc);
           if (rv == 0) {
                   /*
                    * Unhook the interrupt handler.
                    */
                   cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih);
   
                   /*
                    * release bus space and close window
                    */
                   if (csc->base0_reg)
                           reg = CARDBUS_BASE0_REG;
                   else
                           reg = CARDBUS_BASE1_REG;
                   Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, csc->size);
           }
           return (rv);
   }

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