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

     /*      $OpenBSD: if_fxp_cardbus.c,v 1.38 2022/04/06 18:59:28 naddy Exp $ */
     /*      $NetBSD: if_fxp_cardbus.c,v 1.12 2000/05/08 18:23:36 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.
     *
     * 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 i8255x family of Ethernet chips.
     */
    
    #include "bpfilter.h"
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/mbuf.h>
    #include <sys/socket.h>
    #include <sys/ioctl.h>
    #include <sys/errno.h>
    #include <sys/malloc.h>
    #include <sys/kernel.h>
    #include <sys/timeout.h>
    #include <sys/device.h>
    #include <sys/endian.h>
    
    #include <net/if.h>
    #include <net/if_media.h>
    
    #if NBPFILTER > 0
    #include <net/bpf.h>
    #endif
    
    #include <netinet/in.h>
    #include <netinet/if_ether.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <dev/mii/miivar.h>
    
    #include <dev/ic/fxpreg.h>
    #include <dev/ic/fxpvar.h>
    
    #include <dev/pci/pcivar.h>
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcidevs.h>
    
    #include <dev/cardbus/cardbusvar.h>
    
    int fxp_cardbus_match(struct device *, void *, void *);
    void fxp_cardbus_attach(struct device *, struct device *, void *);
    int fxp_cardbus_detach(struct device *, int);
    void fxp_cardbus_setup(struct fxp_softc *);
    
    struct fxp_cardbus_softc {
            struct fxp_softc sc;
            cardbus_devfunc_t ct;
            pcitag_t ct_tag;
            pcireg_t base0_reg;
            pcireg_t base1_reg;
            bus_size_t size;
            pci_chipset_tag_t pc;
    };
    
    const struct cfattach fxp_cardbus_ca = {
            sizeof(struct fxp_cardbus_softc), fxp_cardbus_match, fxp_cardbus_attach,
                fxp_cardbus_detach
    };
    
    const struct pci_matchid fxp_cardbus_devices[] = {
            { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_8255X },
    };
    
    #ifdef CBB_DEBUG
   #define DPRINTF(X) printf X
   #else
   #define DPRINTF(X)
   #endif
   
   int
   fxp_cardbus_match(struct device *parent, void *match, void *aux)
   {
           return (cardbus_matchbyid((struct cardbus_attach_args *)aux,
               fxp_cardbus_devices, nitems(fxp_cardbus_devices)));
   }
   
   void
   fxp_cardbus_attach(struct device *parent, struct device *self, void *aux)
   {
           char intrstr[16];
           struct fxp_softc *sc = (struct fxp_softc *) self;
           struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) self;
           struct cardbus_attach_args *ca = aux;
           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;
           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;
           csc->pc = ca->ca_pc;
   
           /*
            * 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", __func__);
   
           sc->sc_dmat = ca->ca_dmat;
   #if 0
           sc->sc_enable = fxp_cardbus_enable;
           sc->sc_disable = fxp_cardbus_disable;
           sc->sc_enabled = 0;
   #endif
   
           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, sc->sc_dev.dv_xname);
           if (NULL == sc->sc_ih) {
                   printf(": couldn't establish interrupt");
                   printf("at %d\n", ca->ca_intrline);
                   return;
           }
           snprintf(intrstr, sizeof(intrstr), "irq %d", ca->ca_intrline);
           
           sc->sc_revision = PCI_REVISION(ca->ca_class);
   
           fxp_attach(sc, intrstr);
   }
   
   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;
           pci_chipset_tag_t pc = csc->pc;
           cardbus_function_tag_t cf = psc->sc_cf;
           pcireg_t command;
   
           csc->ct_tag = pci_make_tag(pc, csc->ct->ct_bus,
               csc->ct->ct_dev, csc->ct->ct_func);
   
           command = pci_conf_read(pc, csc->ct_tag, PCI_COMMAND_STATUS_REG);
           if (csc->base0_reg) {
                   pci_conf_write(pc, csc->ct_tag, CARDBUS_BASE0_REG, csc->base0_reg);
                   (cf->cardbus_ctrl) (cc, CARDBUS_MEM_ENABLE);
                   command |= PCI_COMMAND_MEM_ENABLE |
                       PCI_COMMAND_MASTER_ENABLE;
           } else if (csc->base1_reg) {
                   pci_conf_write(pc, csc->ct_tag, CARDBUS_BASE1_REG, csc->base1_reg);
                   (cf->cardbus_ctrl) (cc, CARDBUS_IO_ENABLE);
                   command |= (PCI_COMMAND_IO_ENABLE |
                       PCI_COMMAND_MASTER_ENABLE);
           }
   
           (cf->cardbus_ctrl) (cc, CARDBUS_BM_ENABLE);
   
           /* enable the card */
           pci_conf_write(pc, csc->ct_tag, PCI_COMMAND_STATUS_REG, command);
   }
   
   int
   fxp_cardbus_detach(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 reg;
   
           cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih);
           fxp_detach(sc);
   
           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 (0);
   }

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